text: /*
   * Copyright 2016-2021 The OpenSSL Project Authors. All Rights Reserved.
   *
   * Licensed under the Apache License 2.0 (the "License").  You may not use
   * this file except in compliance with the License.  You can obtain a copy
   * in the file LICENSE in the source distribution or at
   * https://www.openssl.org/source/license.html
   */
  
  /*
   * We need access to the deprecated low level HMAC APIs for legacy purposes
   * when the deprecated calls are not hidden
   */
  #ifndef OPENSSL_NO_DEPRECATED_3_0
  # define OPENSSL_SUPPRESS_DEPRECATED
  #endif
  
  #include <stdio.h>
  #include <string.h>
  
  #include <openssl/opensslconf.h>
  #include <openssl/bio.h>
  #include <openssl/crypto.h>
  #include <openssl/ssl.h>
  #include <openssl/ocsp.h>
  #include <openssl/srp.h>
  #include <openssl/txt_db.h>
  #include <openssl/aes.h>
  #include <openssl/rand.h>
  #include <openssl/core_names.h>
  #include <openssl/core_dispatch.h>
  #include <openssl/provider.h>
  #include <openssl/param_build.h>
  #include <openssl/x509v3.h>
  #include <openssl/dh.h>
  
  #include "helpers/ssltestlib.h"
  #include "testutil.h"
  #include "testutil/output.h"
  #include "internal/nelem.h"
  #include "internal/ktls.h"
  #include "../ssl/ssl_local.h"
  #include "filterprov.h"
  
  #undef OSSL_NO_USABLE_TLS1_3
  #if defined(OPENSSL_NO_TLS1_3) \
      || (defined(OPENSSL_NO_EC) && defined(OPENSSL_NO_DH))
  /*
   * If we don't have ec or dh then there are no built-in groups that are usable
   * with TLSv1.3
   */
  # define OSSL_NO_USABLE_TLS1_3
  #endif
  
  /* Defined in tls-provider.c */
  int tls_provider_init(const OSSL_CORE_HANDLE *handle,
                        const OSSL_DISPATCH *in,
                        const OSSL_DISPATCH **out,
                        void **provctx);
  
  static OSSL_LIB_CTX *libctx = NULL;
  static OSSL_PROVIDER *defctxnull = NULL;
  
  #ifndef OSSL_NO_USABLE_TLS1_3
  
  static SSL_SESSION *clientpsk = NULL;
  static SSL_SESSION *serverpsk = NULL;
  static const char *pskid = "Identity";
  static const char *srvid;
  
  static int use_session_cb(SSL *ssl, const EVP_MD *md, const unsigned char **id,
                            size_t *idlen, SSL_SESSION **sess);
  static int find_session_cb(SSL *ssl, const unsigned char *identity,
                             size_t identity_len, SSL_SESSION **sess);
  
  static int use_session_cb_cnt = 0;
  static int find_session_cb_cnt = 0;
  
  static SSL_SESSION *create_a_psk(SSL *ssl);
  #endif
  
  static char *certsdir = NULL;
  static char *cert = NULL;
  static char *privkey = NULL;
  static char *cert2 = NULL;
  static char *privkey2 = NULL;
  static char *cert1024 = NULL;
  static char *privkey1024 = NULL;
  static char *cert3072 = NULL;
  static char *privkey3072 = NULL;
  static char *cert4096 = NULL;
  static char *privkey4096 = NULL;
  static char *cert8192 = NULL;
  static char *privkey8192 = NULL;
  static char *srpvfile = NULL;
  static char *tmpfilename = NULL;
  
  static int is_fips = 0;
  
  #define LOG_BUFFER_SIZE 2048
  static char server_log_buffer[LOG_BUFFER_SIZE + 1] = {0};
  static size_t server_log_buffer_index = 0;
  static char client_log_buffer[LOG_BUFFER_SIZE + 1] = {0};
  static size_t client_log_buffer_index = 0;
  static int error_writing_log = 0;
  
  #ifndef OPENSSL_NO_OCSP
  static const unsigned char orespder[] = "Dummy OCSP Response";
  static int ocsp_server_called = 0;
  static int ocsp_client_called = 0;
  
  static int cdummyarg = 1;
  static X509 *ocspcert = NULL;
  #endif
  
  #define NUM_EXTRA_CERTS 40
  #define CLIENT_VERSION_LEN      2
  
  /*
   * This structure is used to validate that the correct number of log messages
   * of various types are emitted when emitting secret logs.
   */
  struct sslapitest_log_counts {
      unsigned int rsa_key_exchange_count;
      unsigned int master_secret_count;
      unsigned int client_early_secret_count;
      unsigned int client_handshake_secret_count;
      unsigned int server_handshake_secret_count;
      unsigned int client_application_secret_count;
      unsigned int server_application_secret_count;
      unsigned int early_exporter_secret_count;
      unsigned int exporter_secret_count;
  };
  
  
  static unsigned char serverinfov1[] = {
      0xff, 0xff, /* Dummy extension type */
      0x00, 0x01, /* Extension length is 1 byte */
      0xff        /* Dummy extension data */
  };
  
  static unsigned char serverinfov2[] = {
      0x00, 0x00, 0x00,
      (unsigned char)(SSL_EXT_CLIENT_HELLO & 0xff), /* Dummy context - 4 bytes */
      0xff, 0xff, /* Dummy extension type */
      0x00, 0x01, /* Extension length is 1 byte */
      0xff        /* Dummy extension data */
  };
  
  static int hostname_cb(SSL *s, int *al, void *arg)
  {
      const char *hostname = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
  
      if (hostname != NULL && (strcmp(hostname, "goodhost") == 0
                               || strcmp(hostname, "altgoodhost") == 0))
          return  SSL_TLSEXT_ERR_OK;
  
      return SSL_TLSEXT_ERR_NOACK;
  }
  
  static void client_keylog_callback(const SSL *ssl, const char *line)
  {
      int line_length = strlen(line);
  
      /* If the log doesn't fit, error out. */
      if (client_log_buffer_index + line_length > sizeof(client_log_buffer) - 1) {
          TEST_info("Client log too full");
          error_writing_log = 1;
          return;
      }
  
      strcat(client_log_buffer, line);
      client_log_buffer_index += line_length;
      client_log_buffer[client_log_buffer_index++] = '\n';
  }
  
  static void server_keylog_callback(const SSL *ssl, const char *line)
  {
      int line_length = strlen(line);
  
      /* If the log doesn't fit, error out. */
      if (server_log_buffer_index + line_length > sizeof(server_log_buffer) - 1) {
          TEST_info("Server log too full");
          error_writing_log = 1;
          return;
      }
  
      strcat(server_log_buffer, line);
      server_log_buffer_index += line_length;
      server_log_buffer[server_log_buffer_index++] = '\n';
  }
  
  static int compare_hex_encoded_buffer(const char *hex_encoded,
                                        size_t hex_length,
                                        const uint8_t *raw,
                                        size_t raw_length)
  {
      size_t i, j;
      char hexed[3];
  
      if (!TEST_size_t_eq(raw_length * 2, hex_length))
          return 1;
  
      for (i = j = 0; i < raw_length && j + 1 < hex_length; i++, j += 2) {
          sprintf(hexed, "%02x", raw[i]);
          if (!TEST_int_eq(hexed[0], hex_encoded[j])
                  || !TEST_int_eq(hexed[1], hex_encoded[j + 1]))
              return 1;
      }
  
      return 0;
  }
  
  static int test_keylog_output(char *buffer, const SSL *ssl,
                                const SSL_SESSION *session,
                                struct sslapitest_log_counts *expected)
  {
      char *token = NULL;
      unsigned char actual_client_random[SSL3_RANDOM_SIZE] = {0};
      size_t client_random_size = SSL3_RANDOM_SIZE;
      unsigned char actual_master_key[SSL_MAX_MASTER_KEY_LENGTH] = {0};
      size_t master_key_size = SSL_MAX_MASTER_KEY_LENGTH;
      unsigned int rsa_key_exchange_count = 0;
      unsigned int master_secret_count = 0;
      unsigned int client_early_secret_count = 0;
      unsigned int client_handshake_secret_count = 0;
      unsigned int server_handshake_secret_count = 0;
      unsigned int client_application_secret_count = 0;
      unsigned int server_application_secret_count = 0;
      unsigned int early_exporter_secret_count = 0;
      unsigned int exporter_secret_count = 0;
  
      for (token = strtok(buffer, " \n"); token != NULL;
           token = strtok(NULL, " \n")) {
          if (strcmp(token, "RSA") == 0) {
              /*
               * Premaster secret. Tokens should be: 16 ASCII bytes of
               * hex-encoded encrypted secret, then the hex-encoded pre-master
               * secret.
               */
              if (!TEST_ptr(token = strtok(NULL, " \n")))
                  return 0;
              if (!TEST_size_t_eq(strlen(token), 16))
                  return 0;
              if (!TEST_ptr(token = strtok(NULL, " \n")))
                  return 0;
              /*
               * We can't sensibly check the log because the premaster secret is
               * transient, and OpenSSL doesn't keep hold of it once the master
               * secret is generated.
               */
              rsa_key_exchange_count++;
          } else if (strcmp(token, "CLIENT_RANDOM") == 0) {
              /*
               * Master secret. Tokens should be: 64 ASCII bytes of hex-encoded
               * client random, then the hex-encoded master secret.
               */
              client_random_size = SSL_get_client_random(ssl,
                                                         actual_client_random,
                                                         SSL3_RANDOM_SIZE);
              if (!TEST_size_t_eq(client_random_size, SSL3_RANDOM_SIZE))
                  return 0;
  
              if (!TEST_ptr(token = strtok(NULL, " \n")))
                  return 0;
              if (!TEST_size_t_eq(strlen(token), 64))
                  return 0;
              if (!TEST_false(compare_hex_encoded_buffer(token, 64,
                                                         actual_client_random,
                                                         client_random_size)))
                  return 0;
  
              if (!TEST_ptr(token = strtok(NULL, " \n")))
                  return 0;
              master_key_size = SSL_SESSION_get_master_key(session,
                                                           actual_master_key,
                                                           master_key_size);
              if (!TEST_size_t_ne(master_key_size, 0))
                  return 0;
              if (!TEST_false(compare_hex_encoded_buffer(token, strlen(token),
                                                         actual_master_key,
                                                         master_key_size)))
                  return 0;
              master_secret_count++;
          } else if (strcmp(token, "CLIENT_EARLY_TRAFFIC_SECRET") == 0
                      || strcmp(token, "CLIENT_HANDSHAKE_TRAFFIC_SECRET") == 0
                      || strcmp(token, "SERVER_HANDSHAKE_TRAFFIC_SECRET") == 0
                      || strcmp(token, "CLIENT_TRAFFIC_SECRET_0") == 0
                      || strcmp(token, "SERVER_TRAFFIC_SECRET_0") == 0
                      || strcmp(token, "EARLY_EXPORTER_SECRET") == 0
                      || strcmp(token, "EXPORTER_SECRET") == 0) {
              /*
               * TLSv1.3 secret. Tokens should be: 64 ASCII bytes of hex-encoded
               * client random, and then the hex-encoded secret. In this case,
               * we treat all of these secrets identically and then just
               * distinguish between them when counting what we saw.
               */
              if (strcmp(token, "CLIENT_EARLY_TRAFFIC_SECRET") == 0)
                  client_early_secret_count++;
              else if (strcmp(token, "CLIENT_HANDSHAKE_TRAFFIC_SECRET") == 0)
                  client_handshake_secret_count++;
              else if (strcmp(token, "SERVER_HANDSHAKE_TRAFFIC_SECRET") == 0)
                  server_handshake_secret_count++;
              else if (strcmp(token, "CLIENT_TRAFFIC_SECRET_0") == 0)
                  client_application_secret_count++;
              else if (strcmp(token, "SERVER_TRAFFIC_SECRET_0") == 0)
                  server_application_secret_count++;
              else if (strcmp(token, "EARLY_EXPORTER_SECRET") == 0)
                  early_exporter_secret_count++;
              else if (strcmp(token, "EXPORTER_SECRET") == 0)
                  exporter_secret_count++;
  
              client_random_size = SSL_get_client_random(ssl,
                                                         actual_client_random,
                                                         SSL3_RANDOM_SIZE);
              if (!TEST_size_t_eq(client_random_size, SSL3_RANDOM_SIZE))
                  return 0;
  
              if (!TEST_ptr(token = strtok(NULL, " \n")))
                  return 0;
              if (!TEST_size_t_eq(strlen(token), 64))
                  return 0;
              if (!TEST_false(compare_hex_encoded_buffer(token, 64,
                                                         actual_client_random,
                                                         client_random_size)))
                  return 0;
  
              if (!TEST_ptr(token = strtok(NULL, " \n")))
                  return 0;
          } else {
              TEST_info("Unexpected token %s\n", token);
              return 0;
          }
      }
  
      /* Got what we expected? */
      if (!TEST_size_t_eq(rsa_key_exchange_count,
                          expected->rsa_key_exchange_count)
              || !TEST_size_t_eq(master_secret_count,
                                 expected->master_secret_count)
              || !TEST_size_t_eq(client_early_secret_count,
                                 expected->client_early_secret_count)
              || !TEST_size_t_eq(client_handshake_secret_count,
                                 expected->client_handshake_secret_count)
              || !TEST_size_t_eq(server_handshake_secret_count,
                                 expected->server_handshake_secret_count)
              || !TEST_size_t_eq(client_application_secret_count,
                                 expected->client_application_secret_count)
              || !TEST_size_t_eq(server_application_secret_count,
                                 expected->server_application_secret_count)
              || !TEST_size_t_eq(early_exporter_secret_count,
                                 expected->early_exporter_secret_count)
              || !TEST_size_t_eq(exporter_secret_count,
                                 expected->exporter_secret_count))
          return 0;
      return 1;
  }
  
  #if !defined(OPENSSL_NO_TLS1_2) || defined(OSSL_NO_USABLE_TLS1_3)
  static int test_keylog(void)
  {
      SSL_CTX *cctx = NULL, *sctx = NULL;
      SSL *clientssl = NULL, *serverssl = NULL;
      int testresult = 0;
      struct sslapitest_log_counts expected;
  
      /* Clean up logging space */
      memset(&expected, 0, sizeof(expected));
      memset(client_log_buffer, 0, sizeof(client_log_buffer));
      memset(server_log_buffer, 0, sizeof(server_log_buffer));
      client_log_buffer_index = 0;
      server_log_buffer_index = 0;
      error_writing_log = 0;
  
      if (!TEST_true(create_ssl_ctx_pair(libctx, TLS_server_method(),
                                         TLS_client_method(),
                                         TLS1_VERSION, 0,
                                         &sctx, &cctx, cert, privkey)))
          return 0;
  
      /* We cannot log the master secret for TLSv1.3, so we should forbid it. */
      SSL_CTX_set_options(cctx, SSL_OP_NO_TLSv1_3);
      SSL_CTX_set_options(sctx, SSL_OP_NO_TLSv1_3);
  
      /* We also want to ensure that we use RSA-based key exchange. */
      if (!TEST_true(SSL_CTX_set_cipher_list(cctx, "RSA")))
          goto end;
  
      if (!TEST_true(SSL_CTX_get_keylog_callback(cctx) == NULL)
              || !TEST_true(SSL_CTX_get_keylog_callback(sctx) == NULL))
          goto end;
      SSL_CTX_set_keylog_callback(cctx, client_keylog_callback);
      if (!TEST_true(SSL_CTX_get_keylog_callback(cctx)
                     == client_keylog_callback))
          goto end;
      SSL_CTX_set_keylog_callback(sctx, server_keylog_callback);
      if (!TEST_true(SSL_CTX_get_keylog_callback(sctx)
                     == server_keylog_callback))
          goto end;
  
      /* Now do a handshake and check that the logs have been written to. */
      if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl,
                                        &clientssl, NULL, NULL))
              || !TEST_true(create_ssl_connection(serverssl, clientssl,
                                                  SSL_ERROR_NONE))
              || !TEST_false(error_writing_log)
              || !TEST_int_gt(client_log_buffer_index, 0)
              || !TEST_int_gt(server_log_buffer_index, 0))
          goto end;
  
      /*
       * Now we want to test that our output data was vaguely sensible. We
       * do that by using strtok and confirming that we have more or less the
       * data we expect. For both client and server, we expect to see one master
       * secret. The client should also see a RSA key exchange.
       */
      expected.rsa_key_exchange_count = 1;
      expected.master_secret_count = 1;
      if (!TEST_true(test_keylog_output(client_log_buffer, clientssl,
                                        SSL_get_session(clientssl), &expected)))
          goto end;
  
      expected.rsa_key_exchange_count = 0;
      if (!TEST_true(test_keylog_output(server_log_buffer, serverssl,
                                        SSL_get_session(serverssl), &expected)))
          goto end;
  
      testresult = 1;
  
  end:
      SSL_free(serverssl);
      SSL_free(clientssl);
      SSL_CTX_free(sctx);
      SSL_CTX_free(cctx);
  
      return testresult;
  }
  #endif
  
  #ifndef OSSL_NO_USABLE_TLS1_3
  static int test_keylog_no_master_key(void)
  {
      SSL_CTX *cctx = NULL, *sctx = NULL;
      SSL *clientssl = NULL, *serverssl = NULL;
      SSL_SESSION *sess = NULL;
      int testresult = 0;
      struct sslapitest_log_counts expected;
      unsigned char buf[1];
      size_t readbytes, written;
  
      /* Clean up logging space */
      memset(&expected, 0, sizeof(expected));
      memset(client_log_buffer, 0, sizeof(client_log_buffer));
      memset(server_log_buffer, 0, sizeof(server_log_buffer));
      client_log_buffer_index = 0;
      server_log_buffer_index = 0;
      error_writing_log = 0;
  
      if (!TEST_true(create_ssl_ctx_pair(libctx, TLS_server_method(),
                                         TLS_client_method(), TLS1_VERSION, 0,
                                         &sctx, &cctx, cert, privkey))
          || !TEST_true(SSL_CTX_set_max_early_data(sctx,
                                                   SSL3_RT_MAX_PLAIN_LENGTH)))
          return 0;
  
      if (!TEST_true(SSL_CTX_get_keylog_callback(cctx) == NULL)
              || !TEST_true(SSL_CTX_get_keylog_callback(sctx) == NULL))
          goto end;
  
      SSL_CTX_set_keylog_callback(cctx, client_keylog_callback);
      if (!TEST_true(SSL_CTX_get_keylog_callback(cctx)
                     == client_keylog_callback))
          goto end;
  
      SSL_CTX_set_keylog_callback(sctx, server_keylog_callback);
      if (!TEST_true(SSL_CTX_get_keylog_callback(sctx)
                     == server_keylog_callback))
          goto end;
  
      /* Now do a handshake and check that the logs have been written to. */
      if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl,
                                        &clientssl, NULL, NULL))
              || !TEST_true(create_ssl_connection(serverssl, clientssl,
                                                  SSL_ERROR_NONE))
              || !TEST_false(error_writing_log))
          goto end;
  
      /*
       * Now we want to test that our output data was vaguely sensible. For this
       * test, we expect no CLIENT_RANDOM entry because it doesn't make sense for
       * TLSv1.3, but we do expect both client and server to emit keys.
       */
      expected.client_handshake_secret_count = 1;
      expected.server_handshake_secret_count = 1;
      expected.client_application_secret_count = 1;
      expected.server_application_secret_count = 1;
      expected.exporter_secret_count = 1;
      if (!TEST_true(test_keylog_output(client_log_buffer, clientssl,
                                        SSL_get_session(clientssl), &expected))
              || !TEST_true(test_keylog_output(server_log_buffer, serverssl,
                                               SSL_get_session(serverssl),
                                               &expected)))
          goto end;
  
      /* Terminate old session and resume with early data. */
      sess = SSL_get1_session(clientssl);
      SSL_shutdown(clientssl);
      SSL_shutdown(serverssl);
      SSL_free(serverssl);
      SSL_free(clientssl);
      serverssl = clientssl = NULL;
  
      /* Reset key log */
      memset(client_log_buffer, 0, sizeof(client_log_buffer));
      memset(server_log_buffer, 0, sizeof(server_log_buffer));
      client_log_buffer_index = 0;
      server_log_buffer_index = 0;
  
      if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl,
                                        &clientssl, NULL, NULL))
              || !TEST_true(SSL_set_session(clientssl, sess))
              /* Here writing 0 length early data is enough. */
              || !TEST_true(SSL_write_early_data(clientssl, NULL, 0, &written))
              || !TEST_int_eq(SSL_read_early_data(serverssl, buf, sizeof(buf),
                                                  &readbytes),
                              SSL_READ_EARLY_DATA_ERROR)
              || !TEST_int_eq(SSL_get_early_data_status(serverssl),
                              SSL_EARLY_DATA_ACCEPTED)
              || !TEST_true(create_ssl_connection(serverssl, clientssl,
                            SSL_ERROR_NONE))
              || !TEST_true(SSL_session_reused(clientssl)))
          goto end;
  
      /* In addition to the previous entries, expect early secrets. */
      expected.client_early_secret_count = 1;
      expected.early_exporter_secret_count = 1;
      if (!TEST_true(test_keylog_output(client_log_buffer, clientssl,
                                        SSL_get_session(clientssl), &expected))
              || !TEST_true(test_keylog_output(server_log_buffer, serverssl,
                                               SSL_get_session(serverssl),
                                               &expected)))
          goto end;
  
      testresult = 1;
  
  end:
      SSL_SESSION_free(sess);
      SSL_free(serverssl);
      SSL_free(clientssl);
      SSL_CTX_free(sctx);
      SSL_CTX_free(cctx);
  
      return testresult;
  }
  #endif
  
  static int verify_retry_cb(X509_STORE_CTX *ctx, void *arg)
  {
      int res = X509_verify_cert(ctx);
  
      if (res == 0 && X509_STORE_CTX_get_error(ctx) ==
          X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY)
          return -1; /* indicate SSL_ERROR_WANT_RETRY_VERIFY */
      return res;
  }
  
  static int test_client_cert_verify_cb(void)
  {
      /* server key, cert, chain, and root */
      char *skey = test_mk_file_path(certsdir, "leaf.key");
      char *leaf = test_mk_file_path(certsdir, "leaf.pem");
      char *int2 = test_mk_file_path(certsdir, "subinterCA.pem");
      char *int1 = test_mk_file_path(certsdir, "interCA.pem");
      char *root = test_mk_file_path(certsdir, "rootCA.pem");
      X509 *crt1 = NULL, *crt2 = NULL;
      STACK_OF(X509) *server_chain;
      SSL_CTX *cctx = NULL, *sctx = NULL;
      SSL *clientssl = NULL, *serverssl = NULL;
      int testresult = 0;
  
      if (!TEST_true(create_ssl_ctx_pair(libctx, TLS_server_method(),
                                         TLS_client_method(), TLS1_VERSION, 0,
                                         &sctx, &cctx, NULL, NULL)))
          goto end;
      if (!TEST_int_eq(SSL_CTX_use_certificate_chain_file(sctx, leaf), 1)
              || !TEST_int_eq(SSL_CTX_use_PrivateKey_file(sctx, skey,
                                                          SSL_FILETYPE_PEM), 1)
              || !TEST_int_eq(SSL_CTX_check_private_key(sctx), 1))
          goto end;
      if (!TEST_true(SSL_CTX_load_verify_locations(cctx, root, NULL)))
          goto end;
      SSL_CTX_set_verify(cctx, SSL_VERIFY_PEER, NULL);
      SSL_CTX_set_cert_verify_callback(cctx, verify_retry_cb, NULL);
      if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl,
                                        &clientssl, NULL, NULL)))
          goto end;
  
      /* attempt SSL_connect() with incomplete server chain */
      if (!TEST_false(create_ssl_connection(serverssl, clientssl,
                                            SSL_ERROR_WANT_RETRY_VERIFY)))
          goto end;
  
      /* application provides intermediate certs needed to verify server cert */
      if (!TEST_ptr((crt1 = load_cert_pem(int1, libctx)))
          || !TEST_ptr((crt2 = load_cert_pem(int2, libctx)))
          || !TEST_ptr((server_chain = SSL_get_peer_cert_chain(clientssl))))
          goto end;
      /* add certs in reverse order to demonstrate real chain building */
      if (!TEST_true(sk_X509_push(server_chain, crt1)))
          goto end;
      crt1 = NULL;
      if (!TEST_true(sk_X509_push(server_chain, crt2)))
          goto end;
      crt2 = NULL;
  
      /* continue SSL_connect(), must now succeed with completed server chain */
      if (!TEST_true(create_ssl_connection(serverssl, clientssl,
                                           SSL_ERROR_NONE)))
          goto end;
  
      testresult = 1;
  
  end:
      X509_free(crt1);
      X509_free(crt2);
      if (clientssl != NULL) {
          SSL_shutdown(clientssl);
          SSL_free(clientssl);
      }
      if (serverssl != NULL) {
          SSL_shutdown(serverssl);
          SSL_free(serverssl);
      }
      SSL_CTX_free(sctx);
      SSL_CTX_free(cctx);
  
      OPENSSL_free(skey);
      OPENSSL_free(leaf);
      OPENSSL_free(int2);
      OPENSSL_free(int1);
      OPENSSL_free(root);
  
      return testresult;
  }
  
  static int test_ssl_build_cert_chain(void)
  {
      int ret = 0;
      SSL_CTX *ssl_ctx = NULL;
      SSL *ssl = NULL;
      char *skey = test_mk_file_path(certsdir, "leaf.key");
      char *leaf_chain = test_mk_file_path(certsdir, "leaf-chain.pem");
  
      if (!TEST_ptr(ssl_ctx = SSL_CTX_new_ex(libctx, NULL, TLS_server_method())))
          goto end;
      if (!TEST_ptr(ssl = SSL_new(ssl_ctx)))
          goto end;
      /* leaf_chain contains leaf + subinterCA + interCA + rootCA */
      if (!TEST_int_eq(SSL_use_certificate_chain_file(ssl, leaf_chain), 1)
          || !TEST_int_eq(SSL_use_PrivateKey_file(ssl, skey, SSL_FILETYPE_PEM), 1)
          || !TEST_int_eq(SSL_check_private_key(ssl), 1))
          goto end;
      if (!TEST_true(SSL_build_cert_chain(ssl, SSL_BUILD_CHAIN_FLAG_NO_ROOT
                                               | SSL_BUILD_CHAIN_FLAG_CHECK)))
          goto end;
      ret = 1;
  end:
      SSL_free(ssl);
      SSL_CTX_free(ssl_ctx);
      OPENSSL_free(leaf_chain);
      OPENSSL_free(skey);
      return ret;
  }
  
  static int test_ssl_ctx_build_cert_chain(void)
  {
      int ret = 0;
      SSL_CTX *ctx = NULL;
      char *skey = test_mk_file_path(certsdir, "leaf.key");
      char *leaf_chain = test_mk_file_path(certsdir, "leaf-chain.pem");
  
      if (!TEST_ptr(ctx = SSL_CTX_new_ex(libctx, NULL, TLS_server_method())))
          goto end;
      /* leaf_chain contains leaf + subinterCA + interCA + rootCA */
      if (!TEST_int_eq(SSL_CTX_use_certificate_chain_file(ctx, leaf_chain), 1)
          || !TEST_int_eq(SSL_CTX_use_PrivateKey_file(ctx, skey,
                                                      SSL_FILETYPE_PEM), 1)
          || !TEST_int_eq(SSL_CTX_check_private_key(ctx), 1))
          goto end;
      if (!TEST_true(SSL_CTX_build_cert_chain(ctx, SSL_BUILD_CHAIN_FLAG_NO_ROOT
                                                  | SSL_BUILD_CHAIN_FLAG_CHECK)))
          goto end;
      ret = 1;
  end:
      SSL_CTX_free(ctx);
      OPENSSL_free(leaf_chain);
      OPENSSL_free(skey);
      return ret;
  }
  
  #ifndef OPENSSL_NO_TLS1_2
  static int full_client_hello_callback(SSL *s, int *al, void *arg)
  {
      int *ctr = arg;
      const unsigned char *p;
      int *exts;
      /* We only configure two ciphers, but the SCSV is added automatically. */
  #ifdef OPENSSL_NO_EC
      const unsigned char expected_ciphers[] = {0x00, 0x9d, 0x00, 0xff};
  #else
      const unsigned char expected_ciphers[] = {0x00, 0x9d, 0xc0,
                                                0x2c, 0x00, 0xff};
  #endif
      const int expected_extensions[] = {
  #ifndef OPENSSL_NO_EC
                                         11, 10,
  #endif
                                         35, 22, 23, 13};
      size_t len;
  
      /* Make sure we can defer processing and get called back. */
      if ((*ctr)++ == 0)
          return SSL_CLIENT_HELLO_RETRY;
  
      len = SSL_client_hello_get0_ciphers(s, &p);
      if (!TEST_mem_eq(p, len, expected_ciphers, sizeof(expected_ciphers))
              || !TEST_size_t_eq(
                         SSL_client_hello_get0_compression_methods(s, &p), 1)
              || !TEST_int_eq(*p, 0))
          return SSL_CLIENT_HELLO_ERROR;
      if (!SSL_client_hello_get1_extensions_present(s, &exts, &len))
          return SSL_CLIENT_HELLO_ERROR;
      if (len != OSSL_NELEM(expected_extensions) ||
          memcmp(exts, expected_extensions, len * sizeof(*exts)) != 0) {
          printf("ClientHello callback expected extensions mismatch\n");
          OPENSSL_free(exts);
          return SSL_CLIENT_HELLO_ERROR;
      }
      OPENSSL_free(exts);
      return SSL_CLIENT_HELLO_SUCCESS;
  }
  
  static int test_client_hello_cb(void)
  {
      SSL_CTX *cctx = NULL, *sctx = NULL;
      SSL *clientssl = NULL, *serverssl = NULL;
      int testctr = 0, testresult = 0;
  
      if (!TEST_true(create_ssl_ctx_pair(libctx, TLS_server_method(),
                                         TLS_client_method(), TLS1_VERSION, 0,
                                         &sctx, &cctx, cert, privkey)))
          goto end;
      SSL_CTX_set_client_hello_cb(sctx, full_client_hello_callback, &testctr);
  
      /* The gimpy cipher list we configure can't do TLS 1.3. */
      SSL_CTX_set_max_proto_version(cctx, TLS1_2_VERSION);
  
      if (!TEST_true(SSL_CTX_set_cipher_list(cctx,
                          "AES256-GCM-SHA384:ECDHE-ECDSA-AES256-GCM-SHA384"))
              || !TEST_true(create_ssl_objects(sctx, cctx, &serverssl,
                                               &clientssl, NULL, NULL))
              || !TEST_false(create_ssl_connection(serverssl, clientssl,
                          SSL_ERROR_WANT_CLIENT_HELLO_CB))
                  /*
                   * Passing a -1 literal is a hack since
                   * the real value was lost.
                   * */
              || !TEST_int_eq(SSL_get_error(serverssl, -1),
                              SSL_ERROR_WANT_CLIENT_HELLO_CB)
              || !TEST_true(create_ssl_connection(serverssl, clientssl,
                                                  SSL_ERROR_NONE)))
          goto end;
  
      testresult = 1;
  
  end:
      SSL_free(serverssl);
      SSL_free(clientssl);
      SSL_CTX_free(sctx);
      SSL_CTX_free(cctx);
  
      return testresult;
  }
  
  static int test_no_ems(void)
  {
      SSL_CTX *cctx = NULL, *sctx = NULL;
      SSL *clientssl = NULL, *serverssl = NULL;
      int testresult = 0;
  
      if (!create_ssl_ctx_pair(libctx, TLS_server_method(), TLS_client_method(),
                               TLS1_VERSION, TLS1_2_VERSION,
                               &sctx, &cctx, cert, privkey)) {
          printf("Unable to create SSL_CTX pair\n");
          goto end;
      }
  
      SSL_CTX_set_options(sctx, SSL_OP_NO_EXTENDED_MASTER_SECRET);
  
      if (!create_ssl_objects(sctx, cctx, &serverssl, &clientssl, NULL, NULL)) {
          printf("Unable to create SSL objects\n");
          goto end;
      }
  
      if (!create_ssl_connection(serverssl, clientssl, SSL_ERROR_NONE)) {
          printf("Creating SSL connection failed\n");
          goto end;
      }
  
      if (SSL_get_extms_support(serverssl)) {
          printf("Server reports Extended Master Secret support\n");
          goto end;
      }
  
      if (SSL_get_extms_support(clientssl)) {
          printf("Client reports Extended Master Secret support\n");
          goto end;
      }
      testresult = 1;
  
  end:
      SSL_free(serverssl);
      SSL_free(clientssl);
      SSL_CTX_free(sctx);
      SSL_CTX_free(cctx);
  
      return testresult;
  }
  
  /*
   * Very focused test to exercise a single case in the server-side state
   * machine, when the ChangeCipherState message needs to actually change
   * from one cipher to a different cipher (i.e., not changing from null
   * encryption to real encryption).
   */
  static int test_ccs_change_cipher(void)
  {
      SSL_CTX *cctx = NULL, *sctx = NULL;
      SSL *clientssl = NULL, *serverssl = NULL;
      SSL_SESSION *sess = NULL, *sesspre, *sesspost;
      int testresult = 0;
      int i;
      unsigned char buf;
      size_t readbytes;
  
      /*
       * Create a conection so we can resume and potentially (but not) use
       * a different cipher in the second connection.
       */
      if (!TEST_true(create_ssl_ctx_pair(libctx, TLS_server_method(),
                                         TLS_client_method(),
                                         TLS1_VERSION, TLS1_2_VERSION,
                                         &sctx, &cctx, cert, privkey))
              || !TEST_true(SSL_CTX_set_options(sctx, SSL_OP_NO_TICKET))
              || !TEST_true(create_ssl_objects(sctx, cctx, &serverssl, &clientssl,
                            NULL, NULL))
              || !TEST_true(SSL_set_cipher_list(clientssl, "AES128-GCM-SHA256"))
              || !TEST_true(create_ssl_connection(serverssl, clientssl,
                                                  SSL_ERROR_NONE))
              || !TEST_ptr(sesspre = SSL_get0_session(serverssl))
              || !TEST_ptr(sess = SSL_get1_session(clientssl)))
          goto end;
  
      shutdown_ssl_connection(serverssl, clientssl);
      serverssl = clientssl = NULL;
  
      /* Resume, preferring a different cipher. Our server will force the
       * same cipher to be used as the initial handshake. */
      if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl, &clientssl,
                            NULL, NULL))
              || !TEST_true(SSL_set_session(clientssl, sess))
              || !TEST_true(SSL_set_cipher_list(clientssl, "AES256-GCM-SHA384:AES128-GCM-SHA256"))
              || !TEST_true(create_ssl_connection(serverssl, clientssl,
                                                  SSL_ERROR_NONE))
              || !TEST_true(SSL_session_reused(clientssl))
              || !TEST_true(SSL_session_reused(serverssl))
              || !TEST_ptr(sesspost = SSL_get0_session(serverssl))
              || !TEST_ptr_eq(sesspre, sesspost)
              || !TEST_int_eq(TLS1_CK_RSA_WITH_AES_128_GCM_SHA256,
                              SSL_CIPHER_get_id(SSL_get_current_cipher(clientssl))))
          goto end;
      shutdown_ssl_connection(serverssl, clientssl);
      serverssl = clientssl = NULL;
  
      /*
       * Now create a fresh connection and try to renegotiate a different
       * cipher on it.
       */
      if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl, &clientssl,
                                        NULL, NULL))
              || !TEST_true(SSL_set_cipher_list(clientssl, "AES128-GCM-SHA256"))
              || !TEST_true(create_ssl_connection(serverssl, clientssl,
                                                  SSL_ERROR_NONE))
              || !TEST_ptr(sesspre = SSL_get0_session(serverssl))
              || !TEST_true(SSL_set_cipher_list(clientssl, "AES256-GCM-SHA384"))
              || !TEST_true(SSL_renegotiate(clientssl))
              || !TEST_true(SSL_renegotiate_pending(clientssl)))
          goto end;
      /* Actually drive the renegotiation. */
      for (i = 0; i < 3; i++) {
          if (SSL_read_ex(clientssl, &buf, sizeof(buf), &readbytes) > 0) {
              if (!TEST_ulong_eq(readbytes, 0))
                  goto end;
          } else if (!TEST_int_eq(SSL_get_error(clientssl, 0),
                                  SSL_ERROR_WANT_READ)) {
              goto end;
          }
          if (SSL_read_ex(serverssl, &buf, sizeof(buf), &readbytes) > 0) {
              if (!TEST_ulong_eq(readbytes, 0))
                  goto end;
          } else if (!TEST_int_eq(SSL_get_error(serverssl, 0),
                                  SSL_ERROR_WANT_READ)) {
              goto end;
          }
      }
      /* sesspre and sesspost should be different since the cipher changed. */
      if (!TEST_false(SSL_renegotiate_pending(clientssl))
              || !TEST_false(SSL_session_reused(clientssl))
              || !TEST_false(SSL_session_reused(serverssl))
              || !TEST_ptr(sesspost = SSL_get0_session(serverssl))
              || !TEST_ptr_ne(sesspre, sesspost)
              || !TEST_int_eq(TLS1_CK_RSA_WITH_AES_256_GCM_SHA384,
                              SSL_CIPHER_get_id(SSL_get_current_cipher(clientssl))))
          goto end;
  
      shutdown_ssl_connection(serverssl, clientssl);
      serverssl = clientssl = NULL;
  
      testresult = 1;
  
  end:
      SSL_free(serverssl);
      SSL_free(clientssl);
      SSL_CTX_free(sctx);
      SSL_CTX_free(cctx);
      SSL_SESSION_free(sess);
  
      return testresult;
  }
  #endif
  
  static int execute_test_large_message(const SSL_METHOD *smeth,
                                        const SSL_METHOD *cmeth,
                                        int min_version, int max_version,
                                        int read_ahead)
  {
      SSL_CTX *cctx = NULL, *sctx = NULL;
      SSL *clientssl = NULL, *serverssl = NULL;
      int testresult = 0;
      int i;
      BIO *certbio = NULL;
      X509 *chaincert = NULL;
      int certlen;
  
      if (!TEST_ptr(certbio = BIO_new_file(cert, "r")))
          goto end;
  
      if (!TEST_ptr(chaincert = X509_new_ex(libctx, NULL)))
          goto end;
  
      if (PEM_read_bio_X509(certbio, &chaincert, NULL, NULL) == NULL)
          goto end;
      BIO_free(certbio);
      certbio = NULL;
  
      if (!TEST_true(create_ssl_ctx_pair(libctx, smeth, cmeth, min_version,
                                         max_version, &sctx, &cctx, cert,
                                         privkey)))
          goto end;
  
  #ifdef OPENSSL_NO_DTLS1_2
      if (smeth == DTLS_server_method()) {
          /*
           * Default sigalgs are SHA1 based in <DTLS1.2 which is in security
           * level 0
           */
          if (!TEST_true(SSL_CTX_set_cipher_list(sctx, "DEFAULT:@SECLEVEL=0"))
                  || !TEST_true(SSL_CTX_set_cipher_list(cctx,
                                                      "DEFAULT:@SECLEVEL=0")))
              goto end;
      }
  #endif
  
      if (read_ahead) {
          /*
           * Test that read_ahead works correctly when dealing with large
           * records
           */
          SSL_CTX_set_read_ahead(cctx, 1);
      }
  
      /*
       * We assume the supplied certificate is big enough so that if we add
       * NUM_EXTRA_CERTS it will make the overall message large enough. The
       * default buffer size is requested to be 16k, but due to the way BUF_MEM
       * works, it ends up allocating a little over 21k (16 * 4/3). So, in this
       * test we need to have a message larger than that.
       */
      certlen = i2d_X509(chaincert, NULL);
      OPENSSL_assert(certlen * NUM_EXTRA_CERTS >
                     (SSL3_RT_MAX_PLAIN_LENGTH * 4) / 3);
      for (i = 0; i < NUM_EXTRA_CERTS; i++) {
          if (!X509_up_ref(chaincert))
              goto end;
          if (!SSL_CTX_add_extra_chain_cert(sctx, chaincert)) {
              X509_free(chaincert);
              goto end;
          }
      }
  
      if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl, &clientssl,
                                        NULL, NULL))
              || !TEST_true(create_ssl_connection(serverssl, clientssl,
                                                  SSL_ERROR_NONE)))
          goto end;
  
      /*
       * Calling SSL_clear() first is not required but this tests that SSL_clear()
       * doesn't leak.
       */
      if (!TEST_true(SSL_clear(serverssl)))
          goto end;
  
      testresult = 1;
   end:
      BIO_free(certbio);
      X509_free(chaincert);
      SSL_free(serverssl);
      SSL_free(clientssl);
      SSL_CTX_free(sctx);
      SSL_CTX_free(cctx);
  
      return testresult;
  }
  
  #if !defined(OPENSSL_NO_SOCK) && !defined(OPENSSL_NO_KTLS) && \
      !(defined(OSSL_NO_USABLE_TLS1_3) && defined(OPENSSL_NO_TLS1_2))
  /* sock must be connected */
  static int ktls_chk_platform(int sock)
  {
      if (!ktls_enable(sock))
          return 0;
      return 1;
  }
  
  static int ping_pong_query(SSL *clientssl, SSL *serverssl)
  {
      static char count = 1;
      unsigned char cbuf[16000] = {0};
      unsigned char sbuf[16000];
      size_t err = 0;
      char crec_wseq_before[SEQ_NUM_SIZE];
      char crec_wseq_after[SEQ_NUM_SIZE];
      char crec_rseq_before[SEQ_NUM_SIZE];
      char crec_rseq_after[SEQ_NUM_SIZE];
      char srec_wseq_before[SEQ_NUM_SIZE];
      char srec_wseq_after[SEQ_NUM_SIZE];
      char srec_rseq_before[SEQ_NUM_SIZE];
      char srec_rseq_after[SEQ_NUM_SIZE];
  
      cbuf[0] = count++;
      memcpy(crec_wseq_before, &clientssl->rlayer.write_sequence, SEQ_NUM_SIZE);
      memcpy(crec_rseq_before, &clientssl->rlayer.read_sequence, SEQ_NUM_SIZE);
      memcpy(srec_wseq_before, &serverssl->rlayer.write_sequence, SEQ_NUM_SIZE);
      memcpy(srec_rseq_before, &serverssl->rlayer.read_sequence, SEQ_NUM_SIZE);
  
      if (!TEST_true(SSL_write(clientssl, cbuf, sizeof(cbuf)) == sizeof(cbuf)))
          goto end;
  
      while ((err = SSL_read(serverssl, &sbuf, sizeof(sbuf))) != sizeof(sbuf)) {
          if (SSL_get_error(serverssl, err) != SSL_ERROR_WANT_READ) {
              goto end;
          }
      }
  
      if (!TEST_true(SSL_write(serverssl, sbuf, sizeof(sbuf)) == sizeof(sbuf)))
          goto end;
  
      while ((err = SSL_read(clientssl, &cbuf, sizeof(cbuf))) != sizeof(cbuf)) {
          if (SSL_get_error(clientssl, err) != SSL_ERROR_WANT_READ) {
              goto end;
          }
      }
  
      memcpy(crec_wseq_after, &clientssl->rlayer.write_sequence, SEQ_NUM_SIZE);
      memcpy(crec_rseq_after, &clientssl->rlayer.read_sequence, SEQ_NUM_SIZE);
      memcpy(srec_wseq_after, &serverssl->rlayer.write_sequence, SEQ_NUM_SIZE);
      memcpy(srec_rseq_after, &serverssl->rlayer.read_sequence, SEQ_NUM_SIZE);
  
      /* verify the payload */
      if (!TEST_mem_eq(cbuf, sizeof(cbuf), sbuf, sizeof(sbuf)))
          goto end;
  
      /*
       * If ktls is used then kernel sequences are used instead of
       * OpenSSL sequences
       */
      if (!BIO_get_ktls_send(clientssl->wbio)) {
          if (!TEST_mem_ne(crec_wseq_before, SEQ_NUM_SIZE,
                           crec_wseq_after, SEQ_NUM_SIZE))
              goto end;
      } else {
          if (!TEST_mem_eq(crec_wseq_before, SEQ_NUM_SIZE,
                           crec_wseq_after, SEQ_NUM_SIZE))
              goto end;
      }
  
      if (!BIO_get_ktls_send(serverssl->wbio)) {
          if (!TEST_mem_ne(srec_wseq_before, SEQ_NUM_SIZE,
                           srec_wseq_after, SEQ_NUM_SIZE))
              goto end;
      } else {
          if (!TEST_mem_eq(srec_wseq_before, SEQ_NUM_SIZE,
                           srec_wseq_after, SEQ_NUM_SIZE))
              goto end;
      }
  
      if (!BIO_get_ktls_recv(clientssl->wbio)) {
          if (!TEST_mem_ne(crec_rseq_before, SEQ_NUM_SIZE,
                           crec_rseq_after, SEQ_NUM_SIZE))
              goto end;
      } else {
          if (!TEST_mem_eq(crec_rseq_before, SEQ_NUM_SIZE,
                           crec_rseq_after, SEQ_NUM_SIZE))
              goto end;
      }
  
      if (!BIO_get_ktls_recv(serverssl->wbio)) {
          if (!TEST_mem_ne(srec_rseq_before, SEQ_NUM_SIZE,
                           srec_rseq_after, SEQ_NUM_SIZE))
              goto end;
      } else {
          if (!TEST_mem_eq(srec_rseq_before, SEQ_NUM_SIZE,
                           srec_rseq_after, SEQ_NUM_SIZE))
              goto end;
      }
  
      return 1;
  end:
      return 0;
  }
  
  static int execute_test_ktls(int cis_ktls, int sis_ktls,
                               int tls_version, const char *cipher)
  {
      SSL_CTX *cctx = NULL, *sctx = NULL;
      SSL *clientssl = NULL, *serverssl = NULL;
      int ktls_used = 0, testresult = 0;
      int cfd = -1, sfd = -1;
      int rx_supported;
  
      if (!TEST_true(create_test_sockets(&cfd, &sfd)))
          goto end;
  
      /* Skip this test if the platform does not support ktls */
      if (!ktls_chk_platform(cfd)) {
          testresult = TEST_skip("Kernel does not support KTLS");
          goto end;
      }
  
      if (is_fips && strstr(cipher, "CHACHA") != NULL) {
          testresult = TEST_skip("CHACHA is not supported in FIPS");
          goto end;
      }
  
      /* Create a session based on SHA-256 */
      if (!TEST_true(create_ssl_ctx_pair(libctx, TLS_server_method(),
                                         TLS_client_method(),
                                         tls_version, tls_version,
                                         &sctx, &cctx, cert, privkey)))
          goto end;
  
      if (tls_version == TLS1_3_VERSION) {
          if (!TEST_true(SSL_CTX_set_ciphersuites(cctx, cipher))
              || !TEST_true(SSL_CTX_set_ciphersuites(sctx, cipher)))
              goto end;
      } else {
          if (!TEST_true(SSL_CTX_set_cipher_list(cctx, cipher))
              || !TEST_true(SSL_CTX_set_cipher_list(sctx, cipher)))
              goto end;
      }
  
      if (!TEST_true(create_ssl_objects2(sctx, cctx, &serverssl,
                                         &clientssl, sfd, cfd)))
          goto end;
  
      if (cis_ktls) {
          if (!TEST_true(SSL_set_options(clientssl, SSL_OP_ENABLE_KTLS)))
              goto end;
      }
  
      if (sis_ktls) {
          if (!TEST_true(SSL_set_options(serverssl, SSL_OP_ENABLE_KTLS)))
              goto end;
      }
  
      if (!TEST_true(create_ssl_connection(serverssl, clientssl, SSL_ERROR_NONE)))
          goto end;
  
      /*
       * The running kernel may not support a given cipher suite
       * or direction, so just check that KTLS isn't used when it
       * isn't enabled.
       */
      if (!cis_ktls) {
          if (!TEST_false(BIO_get_ktls_send(clientssl->wbio)))
              goto end;
      } else {
          if (BIO_get_ktls_send(clientssl->wbio))
              ktls_used = 1;
      }
  
      if (!sis_ktls) {
          if (!TEST_false(BIO_get_ktls_send(serverssl->wbio)))
              goto end;
      } else {
          if (BIO_get_ktls_send(serverssl->wbio))
              ktls_used = 1;
      }
  
  #if defined(OPENSSL_NO_KTLS_RX)
      rx_supported = 0;
  #else
      rx_supported = (tls_version != TLS1_3_VERSION);
  #endif
      if (!cis_ktls || !rx_supported) {
          if (!TEST_false(BIO_get_ktls_recv(clientssl->rbio)))
              goto end;
      } else {
          if (BIO_get_ktls_send(clientssl->rbio))
              ktls_used = 1;
      }
  
      if (!sis_ktls || !rx_supported) {
          if (!TEST_false(BIO_get_ktls_recv(serverssl->rbio)))
              goto end;
      } else {
          if (BIO_get_ktls_send(serverssl->rbio))
              ktls_used = 1;
      }
  
      if ((cis_ktls || sis_ktls) && !ktls_used) {
          testresult = TEST_skip("KTLS not supported for %s cipher %s",
                                 tls_version == TLS1_3_VERSION ? "TLS 1.3" :
                                 "TLS 1.2", cipher);
          goto end;
      }
  
      if (!TEST_true(ping_pong_query(clientssl, serverssl)))
          goto end;
  
      testresult = 1;
  end:
      if (clientssl) {
          SSL_shutdown(clientssl);
          SSL_free(clientssl);
      }
      if (serverssl) {
          SSL_shutdown(serverssl);
          SSL_free(serverssl);
      }
      SSL_CTX_free(sctx);
      SSL_CTX_free(cctx);
      serverssl = clientssl = NULL;
      if (cfd != -1)
          close(cfd);
      if (sfd != -1)
          close(sfd);
      return testresult;
  }
  
  #define SENDFILE_SZ                     (16 * 4096)
  #define SENDFILE_CHUNK                  (4 * 4096)
  #define min(a,b)                        ((a) > (b) ? (b) : (a))
  
  static int execute_test_ktls_sendfile(int tls_version, const char *cipher)
  {
      SSL_CTX *cctx = NULL, *sctx = NULL;
      SSL *clientssl = NULL, *serverssl = NULL;
      unsigned char *buf, *buf_dst;
      BIO *out = NULL, *in = NULL;
      int cfd = -1, sfd = -1, ffd, err;
      ssize_t chunk_size = 0;
      off_t chunk_off = 0;
      int testresult = 0;
      FILE *ffdp;
  
      buf = OPENSSL_zalloc(SENDFILE_SZ);
      buf_dst = OPENSSL_zalloc(SENDFILE_SZ);
      if (!TEST_ptr(buf) || !TEST_ptr(buf_dst)
          || !TEST_true(create_test_sockets(&cfd, &sfd)))
          goto end;
  
      /* Skip this test if the platform does not support ktls */
      if (!ktls_chk_platform(sfd)) {
          testresult = TEST_skip("Kernel does not support KTLS");
          goto end;
      }
  
      if (is_fips && strstr(cipher, "CHACHA") != NULL) {
          testresult = TEST_skip("CHACHA is not supported in FIPS");
          goto end;
      }
  
      /* Create a session based on SHA-256 */
      if (!TEST_true(create_ssl_ctx_pair(libctx, TLS_server_method(),
                                         TLS_client_method(),
                                         tls_version, tls_version,
                                         &sctx, &cctx, cert, privkey)))
          goto end;
  
      if (tls_version == TLS1_3_VERSION) {
          if (!TEST_true(SSL_CTX_set_ciphersuites(cctx, cipher))
              || !TEST_true(SSL_CTX_set_ciphersuites(sctx, cipher)))
              goto end;
      } else {
          if (!TEST_true(SSL_CTX_set_cipher_list(cctx, cipher))
              || !TEST_true(SSL_CTX_set_cipher_list(sctx, cipher)))
              goto end;
      }
  
      if (!TEST_true(create_ssl_objects2(sctx, cctx, &serverssl,
                                         &clientssl, sfd, cfd)))
          goto end;
  
      if (!TEST_true(SSL_set_options(serverssl, SSL_OP_ENABLE_KTLS)))
          goto end;
  
      if (!TEST_true(create_ssl_connection(serverssl, clientssl,
                                           SSL_ERROR_NONE)))
          goto end;
  
      if (!BIO_get_ktls_send(serverssl->wbio)) {
          testresult = TEST_skip("Failed to enable KTLS for %s cipher %s",
                                 tls_version == TLS1_3_VERSION ? "TLS 1.3" :
                                 "TLS 1.2", cipher);
          goto end;
      }
  
      if (!TEST_true(RAND_bytes_ex(libctx, buf, SENDFILE_SZ, 0)))
          goto end;
  
      out = BIO_new_file(tmpfilename, "wb");
      if (!TEST_ptr(out))
          goto end;
  
      if (BIO_write(out, buf, SENDFILE_SZ) != SENDFILE_SZ)
          goto end;
  
      BIO_free(out);
      out = NULL;
      in = BIO_new_file(tmpfilename, "rb");
      BIO_get_fp(in, &ffdp);
      ffd = fileno(ffdp);
  
      while (chunk_off < SENDFILE_SZ) {
          chunk_size = min(SENDFILE_CHUNK, SENDFILE_SZ - chunk_off);
          while ((err = SSL_sendfile(serverssl,
                                     ffd,
                                     chunk_off,
                                     chunk_size,
                                     0)) != chunk_size) {
              if (SSL_get_error(serverssl, err) != SSL_ERROR_WANT_WRITE)
                  goto end;
          }
          while ((err = SSL_read(clientssl,
                                 buf_dst + chunk_off,
                                 chunk_size)) != chunk_size) {
              if (SSL_get_error(clientssl, err) != SSL_ERROR_WANT_READ)
                  goto end;
          }
  
          /* verify the payload */
          if (!TEST_mem_eq(buf_dst + chunk_off,
                           chunk_size,
                           buf + chunk_off,
                           chunk_size))
              goto end;
  
          chunk_off += chunk_size;
      }
  
      testresult = 1;
  end:
      if (clientssl) {
          SSL_shutdown(clientssl);
          SSL_free(clientssl);
      }
      if (serverssl) {
          SSL_shutdown(serverssl);
          SSL_free(serverssl);
      }
      SSL_CTX_free(sctx);
      SSL_CTX_free(cctx);
      serverssl = clientssl = NULL;
      BIO_free(out);
      BIO_free(in);
      if (cfd != -1)
          close(cfd);
      if (sfd != -1)
          close(sfd);
      OPENSSL_free(buf);
      OPENSSL_free(buf_dst);
      return testresult;
  }
  
  static struct ktls_test_cipher {
      int tls_version;
      const char *cipher;
  } ktls_test_ciphers[] = {
  # if !defined(OPENSSL_NO_TLS1_2)
  #  ifdef OPENSSL_KTLS_AES_GCM_128
      { TLS1_2_VERSION, "AES128-GCM-SHA256" },
  #  endif
  #  ifdef OPENSSL_KTLS_AES_CCM_128
      { TLS1_2_VERSION, "AES128-CCM"},
  #  endif
  #  ifdef OPENSSL_KTLS_AES_GCM_256
      { TLS1_2_VERSION, "AES256-GCM-SHA384"},
  #  endif
  #  ifdef OPENSSL_KTLS_CHACHA20_POLY1305
      { TLS1_2_VERSION, "ECDHE-RSA-CHACHA20-POLY1305"},
  #  endif
  # endif
  # if !defined(OSSL_NO_USABLE_TLS1_3)
  #  ifdef OPENSSL_KTLS_AES_GCM_128
      { TLS1_3_VERSION, "TLS_AES_128_GCM_SHA256" },
  #  endif
  #  ifdef OPENSSL_KTLS_AES_CCM_128
      { TLS1_3_VERSION, "TLS_AES_128_CCM_SHA256" },
  #  endif
  #  ifdef OPENSSL_KTLS_AES_GCM_256
      { TLS1_3_VERSION, "TLS_AES_256_GCM_SHA384" },
  #  endif
  #  ifdef OPENSSL_KTLS_CHACHA20_POLY1305
      { TLS1_3_VERSION, "TLS_CHACHA20_POLY1305_SHA256" },
  #  endif
  # endif
  };
  
  #define NUM_KTLS_TEST_CIPHERS \
      (sizeof(ktls_test_ciphers) / sizeof(ktls_test_ciphers[0]))
  
  static int test_ktls(int test)
  {
      struct ktls_test_cipher *cipher;
      int cis_ktls, sis_ktls;
  
      OPENSSL_assert(test / 4 < (int)NUM_KTLS_TEST_CIPHERS);
      cipher = &ktls_test_ciphers[test / 4];
  
      cis_ktls = (test & 1) != 0;
      sis_ktls = (test & 2) != 0;
  
      return execute_test_ktls(cis_ktls, sis_ktls, cipher->tls_version,
                               cipher->cipher);
  }
  
  static int test_ktls_sendfile(int tst)
  {
      struct ktls_test_cipher *cipher;
  
      OPENSSL_assert(tst < (int)NUM_KTLS_TEST_CIPHERS);
      cipher = &ktls_test_ciphers[tst];
  
      return execute_test_ktls_sendfile(cipher->tls_version, cipher->cipher);
  }
  #endif
  
  static int test_large_message_tls(void)
  {
      return execute_test_large_message(TLS_server_method(), TLS_client_method(),
                                        TLS1_VERSION, 0, 0);
  }
  
  static int test_large_message_tls_read_ahead(void)
  {
      return execute_test_large_message(TLS_server_method(), TLS_client_method(),
                                        TLS1_VERSION, 0, 1);
  }
  
  #ifndef OPENSSL_NO_DTLS
  static int test_large_message_dtls(void)
  {
  # ifdef OPENSSL_NO_DTLS1_2
      /* Not supported in the FIPS provider */
      if (is_fips)
          return 1;
  # endif
      /*
       * read_ahead is not relevant to DTLS because DTLS always acts as if
       * read_ahead is set.
       */
      return execute_test_large_message(DTLS_server_method(),
                                        DTLS_client_method(),
                                        DTLS1_VERSION, 0, 0);
  }
  #endif
  
  static int execute_cleanse_plaintext(const SSL_METHOD *smeth,
                                       const SSL_METHOD *cmeth,
                                       int min_version, int max_version)
  {
      size_t i;
      SSL_CTX *cctx = NULL, *sctx = NULL;
      SSL *clientssl = NULL, *serverssl = NULL;
      int testresult = 0;
      SSL3_RECORD *rr;
      void *zbuf;
  
      static unsigned char cbuf[16000];
      static unsigned char sbuf[16000];
  
      if (!TEST_true(create_ssl_ctx_pair(libctx,
                                         smeth, cmeth,
                                         min_version, max_version,
                                         &sctx, &cctx, cert,
                                         privkey)))
          goto end;
  
  #ifdef OPENSSL_NO_DTLS1_2
      if (smeth == DTLS_server_method()) {
  # ifdef OPENSSL_NO_DTLS1_2
          /* Not supported in the FIPS provider */
          if (is_fips) {
              testresult = 1;
              goto end;
          };
  # endif
          /*
           * Default sigalgs are SHA1 based in <DTLS1.2 which is in security
           * level 0
           */
          if (!TEST_true(SSL_CTX_set_cipher_list(sctx, "DEFAULT:@SECLEVEL=0"))
                  || !TEST_true(SSL_CTX_set_cipher_list(cctx,
                                                      "DEFAULT:@SECLEVEL=0")))
              goto end;
      }
  #endif
  
      if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl, &clientssl,
                                        NULL, NULL)))
          goto end;
  
      if (!TEST_true(SSL_set_options(serverssl, SSL_OP_CLEANSE_PLAINTEXT)))
          goto end;
  
      if (!TEST_true(create_ssl_connection(serverssl, clientssl,
                                           SSL_ERROR_NONE)))
          goto end;
  
      for (i = 0; i < sizeof(cbuf); i++) {
          cbuf[i] = i & 0xff;
      }
  
      if (!TEST_int_eq(SSL_write(clientssl, cbuf, sizeof(cbuf)), sizeof(cbuf)))
          goto end;
  
      if (!TEST_int_eq(SSL_peek(serverssl, &sbuf, sizeof(sbuf)), sizeof(sbuf)))
          goto end;
  
      if (!TEST_mem_eq(cbuf, sizeof(cbuf), sbuf, sizeof(sbuf)))
          goto end;
  
      /*
       * Since we called SSL_peek(), we know the data in the record
       * layer is a plaintext record. We can gather the pointer to check
       * for zeroization after SSL_read().
       */
      rr = serverssl->rlayer.rrec;
      zbuf = &rr->data[rr->off];
      if (!TEST_int_eq(rr->length, sizeof(cbuf)))
          goto end;
  
      /*
       * After SSL_peek() the plaintext must still be stored in the
       * record.
       */
      if (!TEST_mem_eq(cbuf, sizeof(cbuf), zbuf, sizeof(cbuf)))
          goto end;
  
      memset(sbuf, 0, sizeof(sbuf));
      if (!TEST_int_eq(SSL_read(serverssl, &sbuf, sizeof(sbuf)), sizeof(sbuf)))
          goto end;
  
      if (!TEST_mem_eq(cbuf, sizeof(cbuf), sbuf, sizeof(cbuf)))
          goto end;
  
      /* Check if rbuf is cleansed */
      memset(cbuf, 0, sizeof(cbuf));
      if (!TEST_mem_eq(cbuf, sizeof(cbuf), zbuf, sizeof(cbuf)))
          goto end;
  
      testresult = 1;
   end:
      SSL_free(serverssl);
      SSL_free(clientssl);
      SSL_CTX_free(sctx);
      SSL_CTX_free(cctx);
  
      return testresult;
  }
  
  static int test_cleanse_plaintext(void)
  {
  #if !defined(OPENSSL_NO_TLS1_2)
      if (!TEST_true(execute_cleanse_plaintext(TLS_server_method(),
                                               TLS_client_method(),
                                               TLS1_2_VERSION,
                                               TLS1_2_VERSION)))
          return 0;
  
  #endif
  
  #if !defined(OSSL_NO_USABLE_TLS1_3)
      if (!TEST_true(execute_cleanse_plaintext(TLS_server_method(),
                                               TLS_client_method(),
                                               TLS1_3_VERSION,
                                               TLS1_3_VERSION)))
          return 0;
  #endif
  
  #if !defined(OPENSSL_NO_DTLS)
  
      if (!TEST_true(execute_cleanse_plaintext(DTLS_server_method(),
                                               DTLS_client_method(),
                                               DTLS1_VERSION,
                                               0)))
          return 0;
  #endif
      return 1;
  }
  
  #ifndef OPENSSL_NO_OCSP
  static int ocsp_server_cb(SSL *s, void *arg)
  {
      int *argi = (int *)arg;
      unsigned char *copy = NULL;
      STACK_OF(OCSP_RESPID) *ids = NULL;
      OCSP_RESPID *id = NULL;
  
      if (*argi == 2) {
          /* In this test we are expecting exactly 1 OCSP_RESPID */
          SSL_get_tlsext_status_ids(s, &ids);
          if (ids == NULL || sk_OCSP_RESPID_num(ids) != 1)
              return SSL_TLSEXT_ERR_ALERT_FATAL;
  
          id = sk_OCSP_RESPID_value(ids, 0);
          if (id == NULL || !OCSP_RESPID_match_ex(id, ocspcert, libctx, NULL))
              return SSL_TLSEXT_ERR_ALERT_FATAL;
      } else if (*argi != 1) {
          return SSL_TLSEXT_ERR_ALERT_FATAL;
      }
  
      if (!TEST_ptr(copy = OPENSSL_memdup(orespder, sizeof(orespder))))
          return SSL_TLSEXT_ERR_ALERT_FATAL;
  
      if (!TEST_true(SSL_set_tlsext_status_ocsp_resp(s, copy,
                                                     sizeof(orespder)))) {
          OPENSSL_free(copy);
          return SSL_TLSEXT_ERR_ALERT_FATAL;
      }
      ocsp_server_called = 1;
      return SSL_TLSEXT_ERR_OK;
  }
  
  static int ocsp_client_cb(SSL *s, void *arg)
  {
      int *argi = (int *)arg;
      const unsigned char *respderin;
      size_t len;
  
      if (*argi != 1 && *argi != 2)
          return 0;
  
      len = SSL_get_tlsext_status_ocsp_resp(s, &respderin);
      if (!TEST_mem_eq(orespder, len, respderin, len))
          return 0;
  
      ocsp_client_called = 1;
      return 1;
  }
  
  static int test_tlsext_status_type(void)
  {
      SSL_CTX *cctx = NULL, *sctx = NULL;
      SSL *clientssl = NULL, *serverssl = NULL;
      int testresult = 0;
      STACK_OF(OCSP_RESPID) *ids = NULL;
      OCSP_RESPID *id = NULL;
      BIO *certbio = NULL;
  
      if (!create_ssl_ctx_pair(libctx, TLS_server_method(), TLS_client_method(),
                               TLS1_VERSION, 0,
                               &sctx, &cctx, cert, privkey))
          return 0;
  
      if (SSL_CTX_get_tlsext_status_type(cctx) != -1)
          goto end;
  
      /* First just do various checks getting and setting tlsext_status_type */
  
      clientssl = SSL_new(cctx);
      if (!TEST_int_eq(SSL_get_tlsext_status_type(clientssl), -1)
              || !TEST_true(SSL_set_tlsext_status_type(clientssl,
                                                        TLSEXT_STATUSTYPE_ocsp))
              || !TEST_int_eq(SSL_get_tlsext_status_type(clientssl),
                              TLSEXT_STATUSTYPE_ocsp))
          goto end;
  
      SSL_free(clientssl);
      clientssl = NULL;
  
      if (!SSL_CTX_set_tlsext_status_type(cctx, TLSEXT_STATUSTYPE_ocsp)
       || SSL_CTX_get_tlsext_status_type(cctx) != TLSEXT_STATUSTYPE_ocsp)
          goto end;
  
      clientssl = SSL_new(cctx);
      if (SSL_get_tlsext_status_type(clientssl) != TLSEXT_STATUSTYPE_ocsp)
          goto end;
      SSL_free(clientssl);
      clientssl = NULL;
  
      /*
       * Now actually do a handshake and check OCSP information is exchanged and
       * the callbacks get called
       */
      SSL_CTX_set_tlsext_status_cb(cctx, ocsp_client_cb);
      SSL_CTX_set_tlsext_status_arg(cctx, &cdummyarg);
      SSL_CTX_set_tlsext_status_cb(sctx, ocsp_server_cb);
      SSL_CTX_set_tlsext_status_arg(sctx, &cdummyarg);
      if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl,
                                        &clientssl, NULL, NULL))
              || !TEST_true(create_ssl_connection(serverssl, clientssl,
                                                  SSL_ERROR_NONE))
              || !TEST_true(ocsp_client_called)
              || !TEST_true(ocsp_server_called))
          goto end;
      SSL_free(serverssl);
      SSL_free(clientssl);
      serverssl = NULL;
      clientssl = NULL;
  
      /* Try again but this time force the server side callback to fail */
      ocsp_client_called = 0;
      ocsp_server_called = 0;
      cdummyarg = 0;
      if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl,
                                        &clientssl, NULL, NULL))
                  /* This should fail because the callback will fail */
              || !TEST_false(create_ssl_connection(serverssl, clientssl,
                                                   SSL_ERROR_NONE))
              || !TEST_false(ocsp_client_called)
              || !TEST_false(ocsp_server_called))
          goto end;
      SSL_free(serverssl);
      SSL_free(clientssl);
      serverssl = NULL;
      clientssl = NULL;
  
      /*
       * This time we'll get the client to send an OCSP_RESPID that it will
       * accept.
       */
      ocsp_client_called = 0;
      ocsp_server_called = 0;
      cdummyarg = 2;
      if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl,
                                        &clientssl, NULL, NULL)))
          goto end;
  
      /*
       * We'll just use any old cert for this test - it doesn't have to be an OCSP
       * specific one. We'll use the server cert.
       */
      if (!TEST_ptr(certbio = BIO_new_file(cert, "r"))
              || !TEST_ptr(id = OCSP_RESPID_new())
              || !TEST_ptr(ids = sk_OCSP_RESPID_new_null())
              || !TEST_ptr(ocspcert = X509_new_ex(libctx, NULL))
              || !TEST_ptr(PEM_read_bio_X509(certbio, &ocspcert, NULL, NULL))
              || !TEST_true(OCSP_RESPID_set_by_key_ex(id, ocspcert, libctx, NULL))
              || !TEST_true(sk_OCSP_RESPID_push(ids, id)))
          goto end;
      id = NULL;
      SSL_set_tlsext_status_ids(clientssl, ids);
      /* Control has been transferred */
      ids = NULL;
  
      BIO_free(certbio);
      certbio = NULL;
  
      if (!TEST_true(create_ssl_connection(serverssl, clientssl,
                                           SSL_ERROR_NONE))
              || !TEST_true(ocsp_client_called)
              || !TEST_true(ocsp_server_called))
          goto end;
  
      testresult = 1;
  
   end:
      SSL_free(serverssl);
      SSL_free(clientssl);
      SSL_CTX_free(sctx);
      SSL_CTX_free(cctx);
      sk_OCSP_RESPID_pop_free(ids, OCSP_RESPID_free);
      OCSP_RESPID_free(id);
      BIO_free(certbio);
      X509_free(ocspcert);
      ocspcert = NULL;
  
      return testresult;
  }
  #endif
  
  #if !defined(OSSL_NO_USABLE_TLS1_3) || !defined(OPENSSL_NO_TLS1_2)
  static int new_called, remove_called, get_called;
  
  static int new_session_cb(SSL *ssl, SSL_SESSION *sess)
  {
      new_called++;
      /*
       * sess has been up-refed for us, but we don't actually need it so free it
       * immediately.
       */
      SSL_SESSION_free(sess);
      return 1;
  }
  
  static void remove_session_cb(SSL_CTX *ctx, SSL_SESSION *sess)
  {
      remove_called++;
  }
  
  static SSL_SESSION *get_sess_val = NULL;
  
  static SSL_SESSION *get_session_cb(SSL *ssl, const unsigned char *id, int len,
                                     int *copy)
  {
      get_called++;
      *copy = 1;
      return get_sess_val;
  }
  
  static int execute_test_session(int maxprot, int use_int_cache,
                                  int use_ext_cache, long s_options)
  {
      SSL_CTX *sctx = NULL, *cctx = NULL;
      SSL *serverssl1 = NULL, *clientssl1 = NULL;
      SSL *serverssl2 = NULL, *clientssl2 = NULL;
  # ifndef OPENSSL_NO_TLS1_1
      SSL *serverssl3 = NULL, *clientssl3 = NULL;
  # endif
      SSL_SESSION *sess1 = NULL, *sess2 = NULL;
      int testresult = 0, numnewsesstick = 1;
  
      new_called = remove_called = 0;
  
      /* TLSv1.3 sends 2 NewSessionTickets */
      if (maxprot == TLS1_3_VERSION)
          numnewsesstick = 2;
  
      if (!TEST_true(create_ssl_ctx_pair(libctx, TLS_server_method(),
                                         TLS_client_method(), TLS1_VERSION, 0,
                                         &sctx, &cctx, cert, privkey)))
          return 0;
  
      /*
       * Only allow the max protocol version so we can force a connection failure
       * later
       */
      SSL_CTX_set_min_proto_version(cctx, maxprot);
      SSL_CTX_set_max_proto_version(cctx, maxprot);
  
      /* Set up session cache */
      if (use_ext_cache) {
          SSL_CTX_sess_set_new_cb(cctx, new_session_cb);
          SSL_CTX_sess_set_remove_cb(cctx, remove_session_cb);
      }
      if (use_int_cache) {
          /* Also covers instance where both are set */
          SSL_CTX_set_session_cache_mode(cctx, SSL_SESS_CACHE_CLIENT);
      } else {
          SSL_CTX_set_session_cache_mode(cctx,
                                         SSL_SESS_CACHE_CLIENT
                                         | SSL_SESS_CACHE_NO_INTERNAL_STORE);
      }
  
      if (s_options) {
          SSL_CTX_set_options(sctx, s_options);
      }
  
      if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl1, &clientssl1,
                                        NULL, NULL))
              || !TEST_true(create_ssl_connection(serverssl1, clientssl1,
                                                  SSL_ERROR_NONE))
              || !TEST_ptr(sess1 = SSL_get1_session(clientssl1)))
          goto end;
  
      /* Should fail because it should already be in the cache */
      if (use_int_cache && !TEST_false(SSL_CTX_add_session(cctx, sess1)))
          goto end;
      if (use_ext_cache
              && (!TEST_int_eq(new_called, numnewsesstick)
  
                  || !TEST_int_eq(remove_called, 0)))
          goto end;
  
      new_called = remove_called = 0;
      if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl2,
                                        &clientssl2, NULL, NULL))
              || !TEST_true(SSL_set_session(clientssl2, sess1))
              || !TEST_true(create_ssl_connection(serverssl2, clientssl2,
                                                  SSL_ERROR_NONE))
              || !TEST_true(SSL_session_reused(clientssl2)))
          goto end;
  
      if (maxprot == TLS1_3_VERSION) {
          /*
           * In TLSv1.3 we should have created a new session even though we have
           * resumed. Since we attempted a resume we should also have removed the
           * old ticket from the cache so that we try to only use tickets once.
           */
          if (use_ext_cache
                  && (!TEST_int_eq(new_called, 1)
                      || !TEST_int_eq(remove_called, 1)))
              goto end;
      } else {
          /*
           * In TLSv1.2 we expect to have resumed so no sessions added or
           * removed.
           */
          if (use_ext_cache
                  && (!TEST_int_eq(new_called, 0)
                      || !TEST_int_eq(remove_called, 0)))
              goto end;
      }
  
      SSL_SESSION_free(sess1);
      if (!TEST_ptr(sess1 = SSL_get1_session(clientssl2)))
          goto end;
      shutdown_ssl_connection(serverssl2, clientssl2);
      serverssl2 = clientssl2 = NULL;
  
      new_called = remove_called = 0;
      if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl2,
                                        &clientssl2, NULL, NULL))
              || !TEST_true(create_ssl_connection(serverssl2, clientssl2,
                                                  SSL_ERROR_NONE)))
          goto end;
  
      if (!TEST_ptr(sess2 = SSL_get1_session(clientssl2)))
          goto end;
  
      if (use_ext_cache
              && (!TEST_int_eq(new_called, numnewsesstick)
                  || !TEST_int_eq(remove_called, 0)))
          goto end;
  
      new_called = remove_called = 0;
      /*
       * This should clear sess2 from the cache because it is a "bad" session.
       * See SSL_set_session() documentation.
       */
      if (!TEST_true(SSL_set_session(clientssl2, sess1)))
          goto end;
      if (use_ext_cache
              && (!TEST_int_eq(new_called, 0) || !TEST_int_eq(remove_called, 1)))
          goto end;
      if (!TEST_ptr_eq(SSL_get_session(clientssl2), sess1))
          goto end;
  
      if (use_int_cache) {
          /* Should succeeded because it should not already be in the cache */
          if (!TEST_true(SSL_CTX_add_session(cctx, sess2))
                  || !TEST_true(SSL_CTX_remove_session(cctx, sess2)))
              goto end;
      }
  
      new_called = remove_called = 0;
      /* This shouldn't be in the cache so should fail */
      if (!TEST_false(SSL_CTX_remove_session(cctx, sess2)))
          goto end;
  
      if (use_ext_cache
              && (!TEST_int_eq(new_called, 0) || !TEST_int_eq(remove_called, 1)))
          goto end;
  
  # if !defined(OPENSSL_NO_TLS1_1)
      new_called = remove_called = 0;
      /* Force a connection failure */
      SSL_CTX_set_max_proto_version(sctx, TLS1_1_VERSION);
      if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl3,
                                        &clientssl3, NULL, NULL))
              || !TEST_true(SSL_set_session(clientssl3, sess1))
              /* This should fail because of the mismatched protocol versions */
              || !TEST_false(create_ssl_connection(serverssl3, clientssl3,
                                                   SSL_ERROR_NONE)))
          goto end;
  
      /* We should have automatically removed the session from the cache */
      if (use_ext_cache
              && (!TEST_int_eq(new_called, 0) || !TEST_int_eq(remove_called, 1)))
          goto end;
  
      /* Should succeed because it should not already be in the cache */
      if (use_int_cache && !TEST_true(SSL_CTX_add_session(cctx, sess2)))
          goto end;
  # endif
  
      /* Now do some tests for server side caching */
      if (use_ext_cache) {
          SSL_CTX_sess_set_new_cb(cctx, NULL);
          SSL_CTX_sess_set_remove_cb(cctx, NULL);
          SSL_CTX_sess_set_new_cb(sctx, new_session_cb);
          SSL_CTX_sess_set_remove_cb(sctx, remove_session_cb);
          SSL_CTX_sess_set_get_cb(sctx, get_session_cb);
          get_sess_val = NULL;
      }
  
      SSL_CTX_set_session_cache_mode(cctx, 0);
      /* Internal caching is the default on the server side */
      if (!use_int_cache)
          SSL_CTX_set_session_cache_mode(sctx,
                                         SSL_SESS_CACHE_SERVER
                                         | SSL_SESS_CACHE_NO_INTERNAL_STORE);
  
      SSL_free(serverssl1);
      SSL_free(clientssl1);
      serverssl1 = clientssl1 = NULL;
      SSL_free(serverssl2);
      SSL_free(clientssl2);
      serverssl2 = clientssl2 = NULL;
      SSL_SESSION_free(sess1);
      sess1 = NULL;
      SSL_SESSION_free(sess2);
      sess2 = NULL;
  
      SSL_CTX_set_max_proto_version(sctx, maxprot);
      if (maxprot == TLS1_2_VERSION)
          SSL_CTX_set_options(sctx, SSL_OP_NO_TICKET);
      new_called = remove_called = get_called = 0;
      if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl1, &clientssl1,
                                        NULL, NULL))
              || !TEST_true(create_ssl_connection(serverssl1, clientssl1,
                                                  SSL_ERROR_NONE))
              || !TEST_ptr(sess1 = SSL_get1_session(clientssl1))
              || !TEST_ptr(sess2 = SSL_get1_session(serverssl1)))
          goto end;
  
      if (use_int_cache) {
          if (maxprot == TLS1_3_VERSION && !use_ext_cache) {
              /*
               * In TLSv1.3 it should not have been added to the internal cache,
               * except in the case where we also have an external cache (in that
               * case it gets added to the cache in order to generate remove
               * events after timeout).
               */
              if (!TEST_false(SSL_CTX_remove_session(sctx, sess2)))
                  goto end;
          } else {
              /* Should fail because it should already be in the cache */
              if (!TEST_false(SSL_CTX_add_session(sctx, sess2)))
                  goto end;
          }
      }
  
      if (use_ext_cache) {
          SSL_SESSION *tmp = sess2;
  
          if (!TEST_int_eq(new_called, numnewsesstick)
                  || !TEST_int_eq(remove_called, 0)
                  || !TEST_int_eq(get_called, 0))
              goto end;
          /*
           * Delete the session from the internal cache to force a lookup from
           * the external cache. We take a copy first because
           * SSL_CTX_remove_session() also marks the session as non-resumable.
           */
          if (use_int_cache && maxprot != TLS1_3_VERSION) {
              if (!TEST_ptr(tmp = SSL_SESSION_dup(sess2))
                      || !TEST_true(SSL_CTX_remove_session(sctx, sess2)))
                  goto end;
              SSL_SESSION_free(sess2);
          }
          sess2 = tmp;
      }
  
      new_called = remove_called = get_called = 0;
      get_sess_val = sess2;
      if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl2,
                                        &clientssl2, NULL, NULL))
              || !TEST_true(SSL_set_session(clientssl2, sess1))
              || !TEST_true(create_ssl_connection(serverssl2, clientssl2,
                                                  SSL_ERROR_NONE))
              || !TEST_true(SSL_session_reused(clientssl2)))
          goto end;
  
      if (use_ext_cache) {
          if (!TEST_int_eq(remove_called, 0))
              goto end;
  
          if (maxprot == TLS1_3_VERSION) {
              if (!TEST_int_eq(new_called, 1)
                      || !TEST_int_eq(get_called, 0))
                  goto end;
          } else {
              if (!TEST_int_eq(new_called, 0)
                      || !TEST_int_eq(get_called, 1))
                  goto end;
          }
      }
  
      testresult = 1;
  
   end:
      SSL_free(serverssl1);
      SSL_free(clientssl1);
      SSL_free(serverssl2);
      SSL_free(clientssl2);
  # ifndef OPENSSL_NO_TLS1_1
      SSL_free(serverssl3);
      SSL_free(clientssl3);
  # endif
      SSL_SESSION_free(sess1);
      SSL_SESSION_free(sess2);
      SSL_CTX_free(sctx);
      SSL_CTX_free(cctx);
  
      return testresult;
  }
  #endif /* !defined(OSSL_NO_USABLE_TLS1_3) || !defined(OPENSSL_NO_TLS1_2) */
  
  static int test_session_with_only_int_cache(void)
  {
  #ifndef OSSL_NO_USABLE_TLS1_3
      if (!execute_test_session(TLS1_3_VERSION, 1, 0, 0))
          return 0;
  #endif
  
  #ifndef OPENSSL_NO_TLS1_2
      return execute_test_session(TLS1_2_VERSION, 1, 0, 0);
  #else
      return 1;
  #endif
  }
  
  static int test_session_with_only_ext_cache(void)
  {
  #ifndef OSSL_NO_USABLE_TLS1_3
      if (!execute_test_session(TLS1_3_VERSION, 0, 1, 0))
          return 0;
  #endif
  
  #ifndef OPENSSL_NO_TLS1_2
      return execute_test_session(TLS1_2_VERSION, 0, 1, 0);
  #else
      return 1;
  #endif
  }
  
  static int test_session_with_both_cache(void)
  {
  #ifndef OSSL_NO_USABLE_TLS1_3
      if (!execute_test_session(TLS1_3_VERSION, 1, 1, 0))
          return 0;
  #endif
  
  #ifndef OPENSSL_NO_TLS1_2
      return execute_test_session(TLS1_2_VERSION, 1, 1, 0);
  #else
      return 1;
  #endif
  }
  
  static int test_session_wo_ca_names(void)
  {
  #ifndef OSSL_NO_USABLE_TLS1_3
      if (!execute_test_session(TLS1_3_VERSION, 1, 0, SSL_OP_DISABLE_TLSEXT_CA_NAMES))
          return 0;
  #endif
  
  #ifndef OPENSSL_NO_TLS1_2
      return execute_test_session(TLS1_2_VERSION, 1, 0, SSL_OP_DISABLE_TLSEXT_CA_NAMES);
  #else
      return 1;
  #endif
  }
  
  
  #ifndef OSSL_NO_USABLE_TLS1_3
  static SSL_SESSION *sesscache[6];
  static int do_cache;
  
  static int new_cachesession_cb(SSL *ssl, SSL_SESSION *sess)
  {
      if (do_cache) {
          sesscache[new_called] = sess;
      } else {
          /* We don't need the reference to the session, so free it */
          SSL_SESSION_free(sess);
      }
      new_called++;
  
      return 1;
  }
  
  static int post_handshake_verify(SSL *sssl, SSL *cssl)
  {
      SSL_set_verify(sssl, SSL_VERIFY_PEER, NULL);
      if (!TEST_true(SSL_verify_client_post_handshake(sssl)))
          return 0;
  
      /* Start handshake on the server and client */
      if (!TEST_int_eq(SSL_do_handshake(sssl), 1)
              || !TEST_int_le(SSL_read(cssl, NULL, 0), 0)
              || !TEST_int_le(SSL_read(sssl, NULL, 0), 0)
              || !TEST_true(create_ssl_connection(sssl, cssl,
                                                  SSL_ERROR_NONE)))
          return 0;
  
      return 1;
  }
  
  static int setup_ticket_test(int stateful, int idx, SSL_CTX **sctx,
                               SSL_CTX **cctx)
  {
      int sess_id_ctx = 1;
  
      if (!TEST_true(create_ssl_ctx_pair(libctx, TLS_server_method(),
                                         TLS_client_method(), TLS1_VERSION, 0,
                                         sctx, cctx, cert, privkey))
              || !TEST_true(SSL_CTX_set_num_tickets(*sctx, idx))
              || !TEST_true(SSL_CTX_set_session_id_context(*sctx,
                                                           (void *)&sess_id_ctx,
                                                           sizeof(sess_id_ctx))))
          return 0;
  
      if (stateful)
          SSL_CTX_set_options(*sctx, SSL_OP_NO_TICKET);
  
      SSL_CTX_set_session_cache_mode(*cctx, SSL_SESS_CACHE_CLIENT
                                            | SSL_SESS_CACHE_NO_INTERNAL_STORE);
      SSL_CTX_sess_set_new_cb(*cctx, new_cachesession_cb);
  
      return 1;
  }
  
  static int check_resumption(int idx, SSL_CTX *sctx, SSL_CTX *cctx, int succ)
  {
      SSL *serverssl = NULL, *clientssl = NULL;
      int i;
  
      /* Test that we can resume with all the tickets we got given */
      for (i = 0; i < idx * 2; i++) {
          new_called = 0;
          if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl,
                                                &clientssl, NULL, NULL))
                  || !TEST_true(SSL_set_session(clientssl, sesscache[i])))
              goto end;
  
          SSL_set_post_handshake_auth(clientssl, 1);
  
          if (!TEST_true(create_ssl_connection(serverssl, clientssl,
                                                      SSL_ERROR_NONE)))
              goto end;
  
          /*
           * Following a successful resumption we only get 1 ticket. After a
           * failed one we should get idx tickets.
           */
          if (succ) {
              if (!TEST_true(SSL_session_reused(clientssl))
                      || !TEST_int_eq(new_called, 1))
                  goto end;
          } else {
              if (!TEST_false(SSL_session_reused(clientssl))
                      || !TEST_int_eq(new_called, idx))
                  goto end;
          }
  
          new_called = 0;
          /* After a post-handshake authentication we should get 1 new ticket */
          if (succ
                  && (!post_handshake_verify(serverssl, clientssl)
                      || !TEST_int_eq(new_called, 1)))
              goto end;
  
          SSL_shutdown(clientssl);
          SSL_shutdown(serverssl);
          SSL_free(serverssl);
          SSL_free(clientssl);
          serverssl = clientssl = NULL;
          SSL_SESSION_free(sesscache[i]);
          sesscache[i] = NULL;
      }
  
      return 1;
  
   end:
      SSL_free(clientssl);
      SSL_free(serverssl);
      return 0;
  }
  
  static int test_tickets(int stateful, int idx)
  {
      SSL_CTX *sctx = NULL, *cctx = NULL;
      SSL *serverssl = NULL, *clientssl = NULL;
      int testresult = 0;
      size_t j;
  
      /* idx is the test number, but also the number of tickets we want */
  
      new_called = 0;
      do_cache = 1;
  
      if (!setup_ticket_test(stateful, idx, &sctx, &cctx))
          goto end;
  
      if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl,
                                            &clientssl, NULL, NULL)))
          goto end;
  
      if (!TEST_true(create_ssl_connection(serverssl, clientssl,
                                                  SSL_ERROR_NONE))
                 /* Check we got the number of tickets we were expecting */
              || !TEST_int_eq(idx, new_called))
          goto end;
  
      SSL_shutdown(clientssl);
      SSL_shutdown(serverssl);
      SSL_free(serverssl);
      SSL_free(clientssl);
      SSL_CTX_free(sctx);
      SSL_CTX_free(cctx);
      clientssl = serverssl = NULL;
      sctx = cctx = NULL;
  
      /*
       * Now we try to resume with the tickets we previously created. The
       * resumption attempt is expected to fail (because we're now using a new
       * SSL_CTX). We should see idx number of tickets issued again.
       */
  
      /* Stop caching sessions - just count them */
      do_cache = 0;
  
      if (!setup_ticket_test(stateful, idx, &sctx, &cctx))
          goto end;
  
      if (!check_resumption(idx, sctx, cctx, 0))
          goto end;
  
      /* Start again with caching sessions */
      new_called = 0;
      do_cache = 1;
      SSL_CTX_free(sctx);
      SSL_CTX_free(cctx);
      sctx = cctx = NULL;
  
      if (!setup_ticket_test(stateful, idx, &sctx, &cctx))
          goto end;
  
      if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl,
                                            &clientssl, NULL, NULL)))
          goto end;
  
      SSL_set_post_handshake_auth(clientssl, 1);
  
      if (!TEST_true(create_ssl_connection(serverssl, clientssl,
                                                  SSL_ERROR_NONE))
                 /* Check we got the number of tickets we were expecting */
              || !TEST_int_eq(idx, new_called))
          goto end;
  
      /* After a post-handshake authentication we should get new tickets issued */
      if (!post_handshake_verify(serverssl, clientssl)
              || !TEST_int_eq(idx * 2, new_called))
          goto end;
  
      SSL_shutdown(clientssl);
      SSL_shutdown(serverssl);
      SSL_free(serverssl);
      SSL_free(clientssl);
      serverssl = clientssl = NULL;
  
      /* Stop caching sessions - just count them */
      do_cache = 0;
  
      /*
       * Check we can resume with all the tickets we created. This time around the
       * resumptions should all be successful.
       */
      if (!check_resumption(idx, sctx, cctx, 1))
          goto end;
  
      testresult = 1;
  
   end:
      SSL_free(serverssl);
      SSL_free(clientssl);
      for (j = 0; j < OSSL_NELEM(sesscache); j++) {
          SSL_SESSION_free(sesscache[j]);
          sesscache[j] = NULL;
      }
      SSL_CTX_free(sctx);
      SSL_CTX_free(cctx);
  
      return testresult;
  }
  
  static int test_stateless_tickets(int idx)
  {
      return test_tickets(0, idx);
  }
  
  static int test_stateful_tickets(int idx)
  {
      return test_tickets(1, idx);
  }
  
  static int test_psk_tickets(void)
  {
      SSL_CTX *sctx = NULL, *cctx = NULL;
      SSL *serverssl = NULL, *clientssl = NULL;
      int testresult = 0;
      int sess_id_ctx = 1;
  
      if (!TEST_true(create_ssl_ctx_pair(libctx, TLS_server_method(),
                                         TLS_client_method(), TLS1_VERSION, 0,
                                         &sctx, &cctx, NULL, NULL))
              || !TEST_true(SSL_CTX_set_session_id_context(sctx,
                                                           (void *)&sess_id_ctx,
                                                           sizeof(sess_id_ctx))))
          goto end;
  
      SSL_CTX_set_session_cache_mode(cctx, SSL_SESS_CACHE_CLIENT
                                           | SSL_SESS_CACHE_NO_INTERNAL_STORE);
      SSL_CTX_set_psk_use_session_callback(cctx, use_session_cb);
      SSL_CTX_set_psk_find_session_callback(sctx, find_session_cb);
      SSL_CTX_sess_set_new_cb(cctx, new_session_cb);
      use_session_cb_cnt = 0;
      find_session_cb_cnt = 0;
      srvid = pskid;
      new_called = 0;
  
      if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl, &clientssl,
                                        NULL, NULL)))
          goto end;
      clientpsk = serverpsk = create_a_psk(clientssl);
      if (!TEST_ptr(clientpsk))
          goto end;
      SSL_SESSION_up_ref(clientpsk);
  
      if (!TEST_true(create_ssl_connection(serverssl, clientssl,
                                                  SSL_ERROR_NONE))
              || !TEST_int_eq(1, find_session_cb_cnt)
              || !TEST_int_eq(1, use_session_cb_cnt)
                 /* We should always get 1 ticket when using external PSK */
              || !TEST_int_eq(1, new_called))
          goto end;
  
      testresult = 1;
  
   end:
      SSL_free(serverssl);
      SSL_free(clientssl);
      SSL_CTX_free(sctx);
      SSL_CTX_free(cctx);
      SSL_SESSION_free(clientpsk);
      SSL_SESSION_free(serverpsk);
      clientpsk = serverpsk = NULL;
  
      return testresult;
  }
  
  static int test_extra_tickets(int idx)
  {
      SSL_CTX *sctx = NULL, *cctx = NULL;
      SSL *serverssl = NULL, *clientssl = NULL;
      BIO *bretry = BIO_new(bio_s_always_retry());
      BIO *tmp = NULL;
      int testresult = 0;
      int stateful = 0;
      size_t nbytes;
      unsigned char c, buf[1];
  
      new_called = 0;
      do_cache = 1;
  
      if (idx >= 3) {
          idx -= 3;
          stateful = 1;
      }
  
      if (!TEST_ptr(bretry) || !setup_ticket_test(stateful, idx, &sctx, &cctx))
          goto end;
      SSL_CTX_sess_set_new_cb(sctx, new_session_cb);
      /* setup_ticket_test() uses new_cachesession_cb which we don't need. */
      SSL_CTX_sess_set_new_cb(cctx, new_session_cb);
  
      if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl,
                                            &clientssl, NULL, NULL)))
          goto end;
  
      /*
       * Note that we have new_session_cb on both sctx and cctx, so new_called is
       * incremented by both client and server.
       */
      if (!TEST_true(create_ssl_connection(serverssl, clientssl,
                                                  SSL_ERROR_NONE))
                 /* Check we got the number of tickets we were expecting */
              || !TEST_int_eq(idx * 2, new_called)
              || !TEST_true(SSL_new_session_ticket(serverssl))
              || !TEST_true(SSL_new_session_ticket(serverssl))
              || !TEST_int_eq(idx * 2, new_called))
          goto end;
  
      /* Now try a (real) write to actually send the tickets */
      c = '1';
      if (!TEST_true(SSL_write_ex(serverssl, &c, 1, &nbytes))
              || !TEST_size_t_eq(1, nbytes)
              || !TEST_int_eq(idx * 2 + 2, new_called)
              || !TEST_true(SSL_read_ex(clientssl, buf, sizeof(buf), &nbytes))
              || !TEST_int_eq(idx * 2 + 4, new_called)
              || !TEST_int_eq(sizeof(buf), nbytes)
              || !TEST_int_eq(c, buf[0])
              || !TEST_false(SSL_read_ex(clientssl, buf, sizeof(buf), &nbytes)))
          goto end;
  
      /* Try with only requesting one new ticket, too */
      c = '2';
      new_called = 0;
      if (!TEST_true(SSL_new_session_ticket(serverssl))
              || !TEST_true(SSL_write_ex(serverssl, &c, sizeof(c), &nbytes))
              || !TEST_size_t_eq(sizeof(c), nbytes)
              || !TEST_int_eq(1, new_called)
              || !TEST_true(SSL_read_ex(clientssl, buf, sizeof(buf), &nbytes))
              || !TEST_int_eq(2, new_called)
              || !TEST_size_t_eq(sizeof(buf), nbytes)
              || !TEST_int_eq(c, buf[0]))
          goto end;
  
      /* Do it again but use dummy writes to drive the ticket generation */
      c = '3';
      new_called = 0;
      if (!TEST_true(SSL_new_session_ticket(serverssl))
              || !TEST_true(SSL_new_session_ticket(serverssl))
              || !TEST_true(SSL_write_ex(serverssl, &c, 0, &nbytes))
              || !TEST_size_t_eq(0, nbytes)
              || !TEST_int_eq(2, new_called)
              || !TEST_false(SSL_read_ex(clientssl, buf, sizeof(buf), &nbytes))
              || !TEST_int_eq(4, new_called))
          goto end;
  
      /* Once more, but with SSL_do_handshake() to drive the ticket generation */
      c = '4';
      new_called = 0;
      if (!TEST_true(SSL_new_session_ticket(serverssl))
              || !TEST_true(SSL_new_session_ticket(serverssl))
              || !TEST_true(SSL_do_handshake(serverssl))
              || !TEST_int_eq(2, new_called)
              || !TEST_false(SSL_read_ex(clientssl, buf, sizeof(buf), &nbytes))
              || !TEST_int_eq(4, new_called))
          goto end;
  
      /*
       * Use the always-retry BIO to exercise the logic that forces ticket
       * generation to wait until a record boundary.
       */
      c = '5';
      new_called = 0;
      tmp = SSL_get_wbio(serverssl);
      if (!TEST_ptr(tmp) || !TEST_true(BIO_up_ref(tmp))) {
          tmp = NULL;
          goto end;
      }
      SSL_set0_wbio(serverssl, bretry);
      bretry = NULL;
      if (!TEST_false(SSL_write_ex(serverssl, &c, 1, &nbytes))
              || !TEST_int_eq(SSL_get_error(serverssl, 0), SSL_ERROR_WANT_WRITE)
              || !TEST_size_t_eq(nbytes, 0))
          goto end;
      /* Restore a BIO that will let the write succeed */
      SSL_set0_wbio(serverssl, tmp);
      tmp = NULL;
      /*
       * These calls should just queue the request and not send anything
       * even if we explicitly try to hit the state machine.
       */
      if (!TEST_true(SSL_new_session_ticket(serverssl))
              || !TEST_true(SSL_new_session_ticket(serverssl))
              || !TEST_int_eq(0, new_called)
              || !TEST_true(SSL_do_handshake(serverssl))
              || !TEST_int_eq(0, new_called))
          goto end;
      /* Re-do the write; still no tickets sent */
      if (!TEST_true(SSL_write_ex(serverssl, &c, 1, &nbytes))
              || !TEST_size_t_eq(1, nbytes)
              || !TEST_int_eq(0, new_called)
              || !TEST_true(SSL_read_ex(clientssl, buf, sizeof(buf), &nbytes))
              || !TEST_int_eq(0, new_called)
              || !TEST_int_eq(sizeof(buf), nbytes)
              || !TEST_int_eq(c, buf[0])
              || !TEST_false(SSL_read_ex(clientssl, buf, sizeof(buf), &nbytes)))
          goto end;
      /* Even trying to hit the state machine now will still not send tickets */
      if (!TEST_true(SSL_do_handshake(serverssl))
              || !TEST_int_eq(0, new_called))
          goto end;
      /* Now the *next* write should send the tickets */
      c = '6';
      if (!TEST_true(SSL_write_ex(serverssl, &c, 1, &nbytes))
              || !TEST_size_t_eq(1, nbytes)
              || !TEST_int_eq(2, new_called)
              || !TEST_true(SSL_read_ex(clientssl, buf, sizeof(buf), &nbytes))
              || !TEST_int_eq(4, new_called)
              || !TEST_int_eq(sizeof(buf), nbytes)
              || !TEST_int_eq(c, buf[0])
              || !TEST_false(SSL_read_ex(clientssl, buf, sizeof(buf), &nbytes)))
          goto end;
  
      SSL_shutdown(clientssl);
      SSL_shutdown(serverssl);
      testresult = 1;
  
   end:
      BIO_free(bretry);
      BIO_free(tmp);
      SSL_free(serverssl);
      SSL_free(clientssl);
      SSL_CTX_free(sctx);
      SSL_CTX_free(cctx);
      clientssl = serverssl = NULL;
      sctx = cctx = NULL;
      return testresult;
  }
  #endif
  
  #define USE_NULL            0
  #define USE_BIO_1           1
  #define USE_BIO_2           2
  #define USE_DEFAULT         3
  
  #define CONNTYPE_CONNECTION_SUCCESS  0
  #define CONNTYPE_CONNECTION_FAIL     1
  #define CONNTYPE_NO_CONNECTION       2
  
  #define TOTAL_NO_CONN_SSL_SET_BIO_TESTS         (3 * 3 * 3 * 3)
  #define TOTAL_CONN_SUCCESS_SSL_SET_BIO_TESTS    (2 * 2)
  #if !defined(OSSL_NO_USABLE_TLS1_3) && !defined(OPENSSL_NO_TLS1_2)
  # define TOTAL_CONN_FAIL_SSL_SET_BIO_TESTS       (2 * 2)
  #else
  # define TOTAL_CONN_FAIL_SSL_SET_BIO_TESTS       0
  #endif
  
  #define TOTAL_SSL_SET_BIO_TESTS TOTAL_NO_CONN_SSL_SET_BIO_TESTS \
                                  + TOTAL_CONN_SUCCESS_SSL_SET_BIO_TESTS \
                                  + TOTAL_CONN_FAIL_SSL_SET_BIO_TESTS
  
  static void setupbio(BIO **res, BIO *bio1, BIO *bio2, int type)
  {
      switch (type) {
      case USE_NULL:
          *res = NULL;
          break;
      case USE_BIO_1:
          *res = bio1;
          break;
      case USE_BIO_2:
          *res = bio2;
          break;
      }
  }
  
  
  /*
   * Tests calls to SSL_set_bio() under various conditions.
   *
   * For the first 3 * 3 * 3 * 3 = 81 tests we do 2 calls to SSL_set_bio() with
   * various combinations of valid BIOs or NULL being set for the rbio/wbio. We
   * then do more tests where we create a successful connection first using our
   * standard connection setup functions, and then call SSL_set_bio() with
   * various combinations of valid BIOs or NULL. We then repeat these tests
   * following a failed connection. In this last case we are looking to check that
   * SSL_set_bio() functions correctly in the case where s->bbio is not NULL.
   */
  static int test_ssl_set_bio(int idx)
  {
      SSL_CTX *sctx = NULL, *cctx = NULL;
      BIO *bio1 = NULL;
      BIO *bio2 = NULL;
      BIO *irbio = NULL, *iwbio = NULL, *nrbio = NULL, *nwbio = NULL;
      SSL *serverssl = NULL, *clientssl = NULL;
      int initrbio, initwbio, newrbio, newwbio, conntype;
      int testresult = 0;
  
      if (idx < TOTAL_NO_CONN_SSL_SET_BIO_TESTS) {
          initrbio = idx % 3;
          idx /= 3;
          initwbio = idx % 3;
          idx /= 3;
          newrbio = idx % 3;
          idx /= 3;
          newwbio = idx % 3;
          conntype = CONNTYPE_NO_CONNECTION;
      } else {
          idx -= TOTAL_NO_CONN_SSL_SET_BIO_TESTS;
          initrbio = initwbio = USE_DEFAULT;
          newrbio = idx % 2;
          idx /= 2;
          newwbio = idx % 2;
          idx /= 2;
          conntype = idx % 2;
      }
  
      if (!TEST_true(create_ssl_ctx_pair(libctx, TLS_server_method(),
                                         TLS_client_method(), TLS1_VERSION, 0,
                                         &sctx, &cctx, cert, privkey)))
          goto end;
  
      if (conntype == CONNTYPE_CONNECTION_FAIL) {
          /*
           * We won't ever get here if either TLSv1.3 or TLSv1.2 is disabled
           * because we reduced the number of tests in the definition of
           * TOTAL_CONN_FAIL_SSL_SET_BIO_TESTS to avoid this scenario. By setting
           * mismatched protocol versions we will force a connection failure.
           */
          SSL_CTX_set_min_proto_version(sctx, TLS1_3_VERSION);
          SSL_CTX_set_max_proto_version(cctx, TLS1_2_VERSION);
      }
  
      if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl, &clientssl,
                                        NULL, NULL)))
          goto end;
  
      if (initrbio == USE_BIO_1
              || initwbio == USE_BIO_1
              || newrbio == USE_BIO_1
              || newwbio == USE_BIO_1) {
          if (!TEST_ptr(bio1 = BIO_new(BIO_s_mem())))
              goto end;
      }
  
      if (initrbio == USE_BIO_2
              || initwbio == USE_BIO_2
              || newrbio == USE_BIO_2
              || newwbio == USE_BIO_2) {
          if (!TEST_ptr(bio2 = BIO_new(BIO_s_mem())))
              goto end;
      }
  
      if (initrbio != USE_DEFAULT) {
          setupbio(&irbio, bio1, bio2, initrbio);
          setupbio(&iwbio, bio1, bio2, initwbio);
          SSL_set_bio(clientssl, irbio, iwbio);
  
          /*
           * We want to maintain our own refs to these BIO, so do an up ref for
           * each BIO that will have ownership transferred in the SSL_set_bio()
           * call
           */
          if (irbio != NULL)
              BIO_up_ref(irbio);
          if (iwbio != NULL && iwbio != irbio)
              BIO_up_ref(iwbio);
      }
  
      if (conntype != CONNTYPE_NO_CONNECTION
              && !TEST_true(create_ssl_connection(serverssl, clientssl,
                                                  SSL_ERROR_NONE)
                            == (conntype == CONNTYPE_CONNECTION_SUCCESS)))
          goto end;
  
      setupbio(&nrbio, bio1, bio2, newrbio);
      setupbio(&nwbio, bio1, bio2, newwbio);
  
      /*
       * We will (maybe) transfer ownership again so do more up refs.
       * SSL_set_bio() has some really complicated ownership rules where BIOs have
       * already been set!
       */
      if (nrbio != NULL
              && nrbio != irbio
              && (nwbio != iwbio || nrbio != nwbio))
          BIO_up_ref(nrbio);
      if (nwbio != NULL
              && nwbio != nrbio
              && (nwbio != iwbio || (nwbio == iwbio && irbio == iwbio)))
          BIO_up_ref(nwbio);
  
      SSL_set_bio(clientssl, nrbio, nwbio);
  
      testresult = 1;
  
   end:
      BIO_free(bio1);
      BIO_free(bio2);
  
      /*
       * This test is checking that the ref counting for SSL_set_bio is correct.
       * If we get here and we did too many frees then we will fail in the above
       * functions.
       */
      SSL_free(serverssl);
      SSL_free(clientssl);
      SSL_CTX_free(sctx);
      SSL_CTX_free(cctx);
      return testresult;
  }
  
  typedef enum { NO_BIO_CHANGE, CHANGE_RBIO, CHANGE_WBIO } bio_change_t;
  
  static int execute_test_ssl_bio(int pop_ssl, bio_change_t change_bio)
  {
      BIO *sslbio = NULL, *membio1 = NULL, *membio2 = NULL;
      SSL_CTX *ctx;
      SSL *ssl = NULL;
      int testresult = 0;
  
      if (!TEST_ptr(ctx = SSL_CTX_new_ex(libctx, NULL, TLS_method()))
              || !TEST_ptr(ssl = SSL_new(ctx))
              || !TEST_ptr(sslbio = BIO_new(BIO_f_ssl()))
              || !TEST_ptr(membio1 = BIO_new(BIO_s_mem())))
          goto end;
  
      BIO_set_ssl(sslbio, ssl, BIO_CLOSE);
  
      /*
       * If anything goes wrong here then we could leak memory.
       */
      BIO_push(sslbio, membio1);
  
      /* Verify changing the rbio/wbio directly does not cause leaks */
      if (change_bio != NO_BIO_CHANGE) {
          if (!TEST_ptr(membio2 = BIO_new(BIO_s_mem()))) {
              ssl = NULL;
              goto end;
          }
          if (change_bio == CHANGE_RBIO)
              SSL_set0_rbio(ssl, membio2);
          else
              SSL_set0_wbio(ssl, membio2);
      }
      ssl = NULL;
  
      if (pop_ssl)
          BIO_pop(sslbio);
      else
          BIO_pop(membio1);
  
      testresult = 1;
   end:
      BIO_free(membio1);
      BIO_free(sslbio);
      SSL_free(ssl);
      SSL_CTX_free(ctx);
  
      return testresult;
  }
  
  static int test_ssl_bio_pop_next_bio(void)
  {
      return execute_test_ssl_bio(0, NO_BIO_CHANGE);
  }
  
  static int test_ssl_bio_pop_ssl_bio(void)
  {
      return execute_test_ssl_bio(1, NO_BIO_CHANGE);
  }
  
  static int test_ssl_bio_change_rbio(void)
  {
      return execute_test_ssl_bio(0, CHANGE_RBIO);
  }
  
  static int test_ssl_bio_change_wbio(void)
  {
      return execute_test_ssl_bio(0, CHANGE_WBIO);
  }
  
  #if !defined(OPENSSL_NO_TLS1_2) || defined(OSSL_NO_USABLE_TLS1_3)
  typedef struct {
      /* The list of sig algs */
      const int *list;
      /* The length of the list */
      size_t listlen;
      /* A sigalgs list in string format */
      const char *liststr;
      /* Whether setting the list should succeed */
      int valid;
      /* Whether creating a connection with the list should succeed */
      int connsuccess;
  } sigalgs_list;
  
  static const int validlist1[] = {NID_sha256, EVP_PKEY_RSA};
  # ifndef OPENSSL_NO_EC
  static const int validlist2[] = {NID_sha256, EVP_PKEY_RSA, NID_sha512, EVP_PKEY_EC};
  static const int validlist3[] = {NID_sha512, EVP_PKEY_EC};
  # endif
  static const int invalidlist1[] = {NID_undef, EVP_PKEY_RSA};
  static const int invalidlist2[] = {NID_sha256, NID_undef};
  static const int invalidlist3[] = {NID_sha256, EVP_PKEY_RSA, NID_sha256};
  static const int invalidlist4[] = {NID_sha256};
  static const sigalgs_list testsigalgs[] = {
      {validlist1, OSSL_NELEM(validlist1), NULL, 1, 1},
  # ifndef OPENSSL_NO_EC
      {validlist2, OSSL_NELEM(validlist2), NULL, 1, 1},
      {validlist3, OSSL_NELEM(validlist3), NULL, 1, 0},
  # endif
      {NULL, 0, "RSA+SHA256", 1, 1},
  # ifndef OPENSSL_NO_EC
      {NULL, 0, "RSA+SHA256:ECDSA+SHA512", 1, 1},
      {NULL, 0, "ECDSA+SHA512", 1, 0},
  # endif
      {invalidlist1, OSSL_NELEM(invalidlist1), NULL, 0, 0},
      {invalidlist2, OSSL_NELEM(invalidlist2), NULL, 0, 0},
      {invalidlist3, OSSL_NELEM(invalidlist3), NULL, 0, 0},
      {invalidlist4, OSSL_NELEM(invalidlist4), NULL, 0, 0},
      {NULL, 0, "RSA", 0, 0},
      {NULL, 0, "SHA256", 0, 0},
      {NULL, 0, "RSA+SHA256:SHA256", 0, 0},
      {NULL, 0, "Invalid", 0, 0}
  };
  
  static int test_set_sigalgs(int idx)
  {
      SSL_CTX *cctx = NULL, *sctx = NULL;
      SSL *clientssl = NULL, *serverssl = NULL;
      int testresult = 0;
      const sigalgs_list *curr;
      int testctx;
  
      /* Should never happen */
      if (!TEST_size_t_le((size_t)idx, OSSL_NELEM(testsigalgs) * 2))
          return 0;
  
      testctx = ((size_t)idx < OSSL_NELEM(testsigalgs));
      curr = testctx ? &testsigalgs[idx]
                     : &testsigalgs[idx - OSSL_NELEM(testsigalgs)];
  
      if (!TEST_true(create_ssl_ctx_pair(libctx, TLS_server_method(),
                                         TLS_client_method(), TLS1_VERSION, 0,
                                         &sctx, &cctx, cert, privkey)))
          return 0;
  
      SSL_CTX_set_max_proto_version(cctx, TLS1_2_VERSION);
  
      if (testctx) {
          int ret;
  
          if (curr->list != NULL)
              ret = SSL_CTX_set1_sigalgs(cctx, curr->list, curr->listlen);
          else
              ret = SSL_CTX_set1_sigalgs_list(cctx, curr->liststr);
  
          if (!ret) {
              if (curr->valid)
                  TEST_info("Failure setting sigalgs in SSL_CTX (%d)\n", idx);
              else
                  testresult = 1;
              goto end;
          }
          if (!curr->valid) {
              TEST_info("Not-failed setting sigalgs in SSL_CTX (%d)\n", idx);
              goto end;
          }
      }
  
      if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl,
                                        &clientssl, NULL, NULL)))
          goto end;
  
      if (!testctx) {
          int ret;
  
          if (curr->list != NULL)
              ret = SSL_set1_sigalgs(clientssl, curr->list, curr->listlen);
          else
              ret = SSL_set1_sigalgs_list(clientssl, curr->liststr);
          if (!ret) {
              if (curr->valid)
                  TEST_info("Failure setting sigalgs in SSL (%d)\n", idx);
              else
                  testresult = 1;
              goto end;
          }
          if (!curr->valid)
              goto end;
      }
  
      if (!TEST_int_eq(create_ssl_connection(serverssl, clientssl,
                                             SSL_ERROR_NONE),
                  curr->connsuccess))
          goto end;
  
      testresult = 1;
  
   end:
      SSL_free(serverssl);
      SSL_free(clientssl);
      SSL_CTX_free(sctx);
      SSL_CTX_free(cctx);
  
      return testresult;
  }
  #endif
  
  #ifndef OSSL_NO_USABLE_TLS1_3
  static int psk_client_cb_cnt = 0;
  static int psk_server_cb_cnt = 0;
  
  static int use_session_cb(SSL *ssl, const EVP_MD *md, const unsigned char **id,
                            size_t *idlen, SSL_SESSION **sess)
  {
      switch (++use_session_cb_cnt) {
      case 1:
          /* The first call should always have a NULL md */
          if (md != NULL)
              return 0;
          break;
  
      case 2:
          /* The second call should always have an md */
          if (md == NULL)
              return 0;
          break;
  
      default:
          /* We should only be called a maximum of twice */
          return 0;
      }
  
      if (clientpsk != NULL)
          SSL_SESSION_up_ref(clientpsk);
  
      *sess = clientpsk;
      *id = (const unsigned char *)pskid;
      *idlen = strlen(pskid);
  
      return 1;
  }
  
  #ifndef OPENSSL_NO_PSK
  static unsigned int psk_client_cb(SSL *ssl, const char *hint, char *id,
                                    unsigned int max_id_len,
                                    unsigned char *psk,
                                    unsigned int max_psk_len)
  {
      unsigned int psklen = 0;
  
      psk_client_cb_cnt++;
  
      if (strlen(pskid) + 1 > max_id_len)
          return 0;
  
      /* We should only ever be called a maximum of twice per connection */
      if (psk_client_cb_cnt > 2)
          return 0;
  
      if (clientpsk == NULL)
          return 0;
  
      /* We'll reuse the PSK we set up for TLSv1.3 */
      if (SSL_SESSION_get_master_key(clientpsk, NULL, 0) > max_psk_len)
          return 0;
      psklen = SSL_SESSION_get_master_key(clientpsk, psk, max_psk_len);
      strncpy(id, pskid, max_id_len);
  
      return psklen;
  }
  #endif /* OPENSSL_NO_PSK */
  
  static int find_session_cb(SSL *ssl, const unsigned char *identity,
                             size_t identity_len, SSL_SESSION **sess)
  {
      find_session_cb_cnt++;
  
      /* We should only ever be called a maximum of twice per connection */
      if (find_session_cb_cnt > 2)
          return 0;
  
      if (serverpsk == NULL)
          return 0;
  
      /* Identity should match that set by the client */
      if (strlen(srvid) != identity_len
              || strncmp(srvid, (const char *)identity, identity_len) != 0) {
          /* No PSK found, continue but without a PSK */
          *sess = NULL;
          return 1;
      }
  
      SSL_SESSION_up_ref(serverpsk);
      *sess = serverpsk;
  
      return 1;
  }
  
  #ifndef OPENSSL_NO_PSK
  static unsigned int psk_server_cb(SSL *ssl, const char *identity,
                                    unsigned char *psk, unsigned int max_psk_len)
  {
      unsigned int psklen = 0;
  
      psk_server_cb_cnt++;
  
      /* We should only ever be called a maximum of twice per connection */
      if (find_session_cb_cnt > 2)
          return 0;
  
      if (serverpsk == NULL)
          return 0;
  
      /* Identity should match that set by the client */
      if (strcmp(srvid, identity) != 0) {
          return 0;
      }
  
      /* We'll reuse the PSK we set up for TLSv1.3 */
      if (SSL_SESSION_get_master_key(serverpsk, NULL, 0) > max_psk_len)
          return 0;
      psklen = SSL_SESSION_get_master_key(serverpsk, psk, max_psk_len);
  
      return psklen;
  }
  #endif /* OPENSSL_NO_PSK */
  
  #define MSG1    "Hello"
  #define MSG2    "World."
  #define MSG3    "This"
  #define MSG4    "is"
  #define MSG5    "a"
  #define MSG6    "test"
  #define MSG7    "message."
  
  #define TLS13_AES_128_GCM_SHA256_BYTES  ((const unsigned char *)"\x13\x01")
  #define TLS13_AES_256_GCM_SHA384_BYTES  ((const unsigned char *)"\x13\x02")
  #define TLS13_CHACHA20_POLY1305_SHA256_BYTES ((const unsigned char *)"\x13\x03")
  #define TLS13_AES_128_CCM_SHA256_BYTES ((const unsigned char *)"\x13\x04")
  #define TLS13_AES_128_CCM_8_SHA256_BYTES ((const unsigned char *)"\x13\05")
  
  
  static SSL_SESSION *create_a_psk(SSL *ssl)
  {
      const SSL_CIPHER *cipher = NULL;
      const unsigned char key[] = {
          0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a,
          0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15,
          0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20,
          0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b,
          0x2c, 0x2d, 0x2e, 0x2f
      };
      SSL_SESSION *sess = NULL;
  
      cipher = SSL_CIPHER_find(ssl, TLS13_AES_256_GCM_SHA384_BYTES);
      sess = SSL_SESSION_new();
      if (!TEST_ptr(sess)
              || !TEST_ptr(cipher)
              || !TEST_true(SSL_SESSION_set1_master_key(sess, key,
                                                        sizeof(key)))
              || !TEST_true(SSL_SESSION_set_cipher(sess, cipher))
              || !TEST_true(
                      SSL_SESSION_set_protocol_version(sess,
                                                       TLS1_3_VERSION))) {
          SSL_SESSION_free(sess);
          return NULL;
      }
      return sess;
  }
  
  /*
   * Helper method to setup objects for early data test. Caller frees objects on
   * error.
   */
  static int setupearly_data_test(SSL_CTX **cctx, SSL_CTX **sctx, SSL **clientssl,
                                  SSL **serverssl, SSL_SESSION **sess, int idx)
  {
      if (*sctx == NULL
              && !TEST_true(create_ssl_ctx_pair(libctx, TLS_server_method(),
                                                TLS_client_method(),
                                                TLS1_VERSION, 0,
                                                sctx, cctx, cert, privkey)))
          return 0;
  
      if (!TEST_true(SSL_CTX_set_max_early_data(*sctx, SSL3_RT_MAX_PLAIN_LENGTH)))
          return 0;
  
      if (idx == 1) {
          /* When idx == 1 we repeat the tests with read_ahead set */
          SSL_CTX_set_read_ahead(*cctx, 1);
          SSL_CTX_set_read_ahead(*sctx, 1);
      } else if (idx == 2) {
          /* When idx == 2 we are doing early_data with a PSK. Set up callbacks */
          SSL_CTX_set_psk_use_session_callback(*cctx, use_session_cb);
          SSL_CTX_set_psk_find_session_callback(*sctx, find_session_cb);
          use_session_cb_cnt = 0;
          find_session_cb_cnt = 0;
          srvid = pskid;
      }
  
      if (!TEST_true(create_ssl_objects(*sctx, *cctx, serverssl, clientssl,
                                        NULL, NULL)))
          return 0;
  
      /*
       * For one of the run throughs (doesn't matter which one), we'll try sending
       * some SNI data in the initial ClientHello. This will be ignored (because
       * there is no SNI cb set up by the server), so it should not impact
       * early_data.
       */
      if (idx == 1
              && !TEST_true(SSL_set_tlsext_host_name(*clientssl, "localhost")))
          return 0;
  
      if (idx == 2) {
          clientpsk = create_a_psk(*clientssl);
          if (!TEST_ptr(clientpsk)
                     /*
                      * We just choose an arbitrary value for max_early_data which
                      * should be big enough for testing purposes.
                      */
                  || !TEST_true(SSL_SESSION_set_max_early_data(clientpsk,
                                                               0x100))
                  || !TEST_true(SSL_SESSION_up_ref(clientpsk))) {
              SSL_SESSION_free(clientpsk);
              clientpsk = NULL;
              return 0;
          }
          serverpsk = clientpsk;
  
          if (sess != NULL) {
              if (!TEST_true(SSL_SESSION_up_ref(clientpsk))) {
                  SSL_SESSION_free(clientpsk);
                  SSL_SESSION_free(serverpsk);
                  clientpsk = serverpsk = NULL;
                  return 0;
              }
              *sess = clientpsk;
          }
          return 1;
      }
  
      if (sess == NULL)
          return 1;
  
      if (!TEST_true(create_ssl_connection(*serverssl, *clientssl,
                                           SSL_ERROR_NONE)))
          return 0;
  
      *sess = SSL_get1_session(*clientssl);
      SSL_shutdown(*clientssl);
      SSL_shutdown(*serverssl);
      SSL_free(*serverssl);
      SSL_free(*clientssl);
      *serverssl = *clientssl = NULL;
  
      if (!TEST_true(create_ssl_objects(*sctx, *cctx, serverssl,
                                        clientssl, NULL, NULL))
              || !TEST_true(SSL_set_session(*clientssl, *sess)))
          return 0;
  
      return 1;
  }
  
  static int test_early_data_read_write(int idx)
  {
      SSL_CTX *cctx = NULL, *sctx = NULL;
      SSL *clientssl = NULL, *serverssl = NULL;
      int testresult = 0;
      SSL_SESSION *sess = NULL;
      unsigned char buf[20], data[1024];
      size_t readbytes, written, eoedlen, rawread, rawwritten;
      BIO *rbio;
  
      if (!TEST_true(setupearly_data_test(&cctx, &sctx, &clientssl,
                                          &serverssl, &sess, idx)))
          goto end;
  
      /* Write and read some early data */
      if (!TEST_true(SSL_write_early_data(clientssl, MSG1, strlen(MSG1),
                                          &written))
              || !TEST_size_t_eq(written, strlen(MSG1))
              || !TEST_int_eq(SSL_read_early_data(serverssl, buf,
                                                  sizeof(buf), &readbytes),
                              SSL_READ_EARLY_DATA_SUCCESS)
              || !TEST_mem_eq(MSG1, readbytes, buf, strlen(MSG1))
              || !TEST_int_eq(SSL_get_early_data_status(serverssl),
                              SSL_EARLY_DATA_ACCEPTED))
          goto end;
  
      /*
       * Server should be able to write data, and client should be able to
       * read it.
       */
      if (!TEST_true(SSL_write_early_data(serverssl, MSG2, strlen(MSG2),
                                          &written))
              || !TEST_size_t_eq(written, strlen(MSG2))
              || !TEST_true(SSL_read_ex(clientssl, buf, sizeof(buf), &readbytes))
              || !TEST_mem_eq(buf, readbytes, MSG2, strlen(MSG2)))
          goto end;
  
      /* Even after reading normal data, client should be able write early data */
      if (!TEST_true(SSL_write_early_data(clientssl, MSG3, strlen(MSG3),
                                          &written))
              || !TEST_size_t_eq(written, strlen(MSG3)))
          goto end;
  
      /* Server should still be able read early data after writing data */
      if (!TEST_int_eq(SSL_read_early_data(serverssl, buf, sizeof(buf),
                                           &readbytes),
                       SSL_READ_EARLY_DATA_SUCCESS)
              || !TEST_mem_eq(buf, readbytes, MSG3, strlen(MSG3)))
          goto end;
  
      /* Write more data from server and read it from client */
      if (!TEST_true(SSL_write_early_data(serverssl, MSG4, strlen(MSG4),
                                          &written))
              || !TEST_size_t_eq(written, strlen(MSG4))
              || !TEST_true(SSL_read_ex(clientssl, buf, sizeof(buf), &readbytes))
              || !TEST_mem_eq(buf, readbytes, MSG4, strlen(MSG4)))
          goto end;
  
      /*
       * If client writes normal data it should mean writing early data is no
       * longer possible.
       */
      if (!TEST_true(SSL_write_ex(clientssl, MSG5, strlen(MSG5), &written))
              || !TEST_size_t_eq(written, strlen(MSG5))
              || !TEST_int_eq(SSL_get_early_data_status(clientssl),
                              SSL_EARLY_DATA_ACCEPTED))
          goto end;
  
      /*
       * At this point the client has written EndOfEarlyData, ClientFinished and
       * normal (fully protected) data. We are going to cause a delay between the
       * arrival of EndOfEarlyData and ClientFinished. We read out all the data
       * in the read BIO, and then just put back the EndOfEarlyData message.
       */
      rbio = SSL_get_rbio(serverssl);
      if (!TEST_true(BIO_read_ex(rbio, data, sizeof(data), &rawread))
              || !TEST_size_t_lt(rawread, sizeof(data))
              || !TEST_size_t_gt(rawread, SSL3_RT_HEADER_LENGTH))
          goto end;
  
      /* Record length is in the 4th and 5th bytes of the record header */
      eoedlen = SSL3_RT_HEADER_LENGTH + (data[3] << 8 | data[4]);
      if (!TEST_true(BIO_write_ex(rbio, data, eoedlen, &rawwritten))
              || !TEST_size_t_eq(rawwritten, eoedlen))
          goto end;
  
      /* Server should be told that there is no more early data */
      if (!TEST_int_eq(SSL_read_early_data(serverssl, buf, sizeof(buf),
                                           &readbytes),
                       SSL_READ_EARLY_DATA_FINISH)
              || !TEST_size_t_eq(readbytes, 0))
          goto end;
  
      /*
       * Server has not finished init yet, so should still be able to write early
       * data.
       */
      if (!TEST_true(SSL_write_early_data(serverssl, MSG6, strlen(MSG6),
                                          &written))
              || !TEST_size_t_eq(written, strlen(MSG6)))
          goto end;
  
      /* Push the ClientFinished and the normal data back into the server rbio */
      if (!TEST_true(BIO_write_ex(rbio, data + eoedlen, rawread - eoedlen,
                                  &rawwritten))
              || !TEST_size_t_eq(rawwritten, rawread - eoedlen))
          goto end;
  
      /* Server should be able to read normal data */
      if (!TEST_true(SSL_read_ex(serverssl, buf, sizeof(buf), &readbytes))
              || !TEST_size_t_eq(readbytes, strlen(MSG5)))
          goto end;
  
      /* Client and server should not be able to write/read early data now */
      if (!TEST_false(SSL_write_early_data(clientssl, MSG6, strlen(MSG6),
                                           &written)))
          goto end;
      ERR_clear_error();
      if (!TEST_int_eq(SSL_read_early_data(serverssl, buf, sizeof(buf),
                                           &readbytes),
                       SSL_READ_EARLY_DATA_ERROR))
          goto end;
      ERR_clear_error();
  
      /* Client should be able to read the data sent by the server */
      if (!TEST_true(SSL_read_ex(clientssl, buf, sizeof(buf), &readbytes))
              || !TEST_mem_eq(buf, readbytes, MSG6, strlen(MSG6)))
          goto end;
  
      /*
       * Make sure we process the two NewSessionTickets. These arrive
       * post-handshake. We attempt reads which we do not expect to return any
       * data.
       */
      if (!TEST_false(SSL_read_ex(clientssl, buf, sizeof(buf), &readbytes))
              || !TEST_false(SSL_read_ex(clientssl, buf, sizeof(buf),
                             &readbytes)))
          goto end;
  
      /* Server should be able to write normal data */
      if (!TEST_true(SSL_write_ex(serverssl, MSG7, strlen(MSG7), &written))
              || !TEST_size_t_eq(written, strlen(MSG7))
              || !TEST_true(SSL_read_ex(clientssl, buf, sizeof(buf), &readbytes))
              || !TEST_mem_eq(buf, readbytes, MSG7, strlen(MSG7)))
          goto end;
  
      SSL_SESSION_free(sess);
      sess = SSL_get1_session(clientssl);
      use_session_cb_cnt = 0;
      find_session_cb_cnt = 0;
  
      SSL_shutdown(clientssl);
      SSL_shutdown(serverssl);
      SSL_free(serverssl);
      SSL_free(clientssl);
      serverssl = clientssl = NULL;
      if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl,
                                        &clientssl, NULL, NULL))
              || !TEST_true(SSL_set_session(clientssl, sess)))
          goto end;
  
      /* Write and read some early data */
      if (!TEST_true(SSL_write_early_data(clientssl, MSG1, strlen(MSG1),
                                          &written))
              || !TEST_size_t_eq(written, strlen(MSG1))
              || !TEST_int_eq(SSL_read_early_data(serverssl, buf, sizeof(buf),
                                                  &readbytes),
                              SSL_READ_EARLY_DATA_SUCCESS)
              || !TEST_mem_eq(buf, readbytes, MSG1, strlen(MSG1)))
          goto end;
  
      if (!TEST_int_gt(SSL_connect(clientssl), 0)
              || !TEST_int_gt(SSL_accept(serverssl), 0))
          goto end;
  
      /* Client and server should not be able to write/read early data now */
      if (!TEST_false(SSL_write_early_data(clientssl, MSG6, strlen(MSG6),
                                           &written)))
          goto end;
      ERR_clear_error();
      if (!TEST_int_eq(SSL_read_early_data(serverssl, buf, sizeof(buf),
                                           &readbytes),
                       SSL_READ_EARLY_DATA_ERROR))
          goto end;
      ERR_clear_error();
  
      /* Client and server should be able to write/read normal data */
      if (!TEST_true(SSL_write_ex(clientssl, MSG5, strlen(MSG5), &written))
              || !TEST_size_t_eq(written, strlen(MSG5))
              || !TEST_true(SSL_read_ex(serverssl, buf, sizeof(buf), &readbytes))
              || !TEST_size_t_eq(readbytes, strlen(MSG5)))
          goto end;
  
      testresult = 1;
  
   end:
      SSL_SESSION_free(sess);
      SSL_SESSION_free(clientpsk);
      SSL_SESSION_free(serverpsk);
      clientpsk = serverpsk = NULL;
      SSL_free(serverssl);
      SSL_free(clientssl);
      SSL_CTX_free(sctx);
      SSL_CTX_free(cctx);
      return testresult;
  }
  
  static int allow_ed_cb_called = 0;
  
  static int allow_early_data_cb(SSL *s, void *arg)
  {
      int *usecb = (int *)arg;
  
      allow_ed_cb_called++;
  
      if (*usecb == 1)
          return 0;
  
      return 1;
  }
  
  /*
   * idx == 0: Standard early_data setup
   * idx == 1: early_data setup using read_ahead
   * usecb == 0: Don't use a custom early data callback
   * usecb == 1: Use a custom early data callback and reject the early data
   * usecb == 2: Use a custom early data callback and accept the early data
   * confopt == 0: Configure anti-replay directly
   * confopt == 1: Configure anti-replay using SSL_CONF
   */
  static int test_early_data_replay_int(int idx, int usecb, int confopt)
  {
      SSL_CTX *cctx = NULL, *sctx = NULL;
      SSL *clientssl = NULL, *serverssl = NULL;
      int testresult = 0;
      SSL_SESSION *sess = NULL;
      size_t readbytes, written;
      unsigned char buf[20];
  
      allow_ed_cb_called = 0;
  
      if (!TEST_true(create_ssl_ctx_pair(libctx, TLS_server_method(),
                                         TLS_client_method(), TLS1_VERSION, 0,
                                         &sctx, &cctx, cert, privkey)))
          return 0;
  
      if (usecb > 0) {
          if (confopt == 0) {
              SSL_CTX_set_options(sctx, SSL_OP_NO_ANTI_REPLAY);
          } else {
              SSL_CONF_CTX *confctx = SSL_CONF_CTX_new();
  
              if (!TEST_ptr(confctx))
                  goto end;
              SSL_CONF_CTX_set_flags(confctx, SSL_CONF_FLAG_FILE
                                              | SSL_CONF_FLAG_SERVER);
              SSL_CONF_CTX_set_ssl_ctx(confctx, sctx);
              if (!TEST_int_eq(SSL_CONF_cmd(confctx, "Options", "-AntiReplay"),
                               2)) {
                  SSL_CONF_CTX_free(confctx);
                  goto end;
              }
              SSL_CONF_CTX_free(confctx);
          }
          SSL_CTX_set_allow_early_data_cb(sctx, allow_early_data_cb, &usecb);
      }
  
      if (!TEST_true(setupearly_data_test(&cctx, &sctx, &clientssl,
                                          &serverssl, &sess, idx)))
          goto end;
  
      /*
       * The server is configured to accept early data. Create a connection to
       * "use up" the ticket
       */
      if (!TEST_true(create_ssl_connection(serverssl, clientssl, SSL_ERROR_NONE))
              || !TEST_true(SSL_session_reused(clientssl)))
          goto end;
  
      SSL_shutdown(clientssl);
      SSL_shutdown(serverssl);
      SSL_free(serverssl);
      SSL_free(clientssl);
      serverssl = clientssl = NULL;
  
      if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl,
                                        &clientssl, NULL, NULL))
              || !TEST_true(SSL_set_session(clientssl, sess)))
          goto end;
  
      /* Write and read some early data */
      if (!TEST_true(SSL_write_early_data(clientssl, MSG1, strlen(MSG1),
                                          &written))
              || !TEST_size_t_eq(written, strlen(MSG1)))
          goto end;
  
      if (usecb <= 1) {
          if (!TEST_int_eq(SSL_read_early_data(serverssl, buf, sizeof(buf),
                                               &readbytes),
                           SSL_READ_EARLY_DATA_FINISH)
                     /*
                      * The ticket was reused, so the we should have rejected the
                      * early data
                      */
                  || !TEST_int_eq(SSL_get_early_data_status(serverssl),
                                  SSL_EARLY_DATA_REJECTED))
              goto end;
      } else {
          /* In this case the callback decides to accept the early data */
          if (!TEST_int_eq(SSL_read_early_data(serverssl, buf, sizeof(buf),
                                               &readbytes),
                           SSL_READ_EARLY_DATA_SUCCESS)
                  || !TEST_mem_eq(MSG1, strlen(MSG1), buf, readbytes)
                     /*
                      * Server will have sent its flight so client can now send
                      * end of early data and complete its half of the handshake
                      */
                  || !TEST_int_gt(SSL_connect(clientssl), 0)
                  || !TEST_int_eq(SSL_read_early_data(serverssl, buf, sizeof(buf),
                                               &readbytes),
                                  SSL_READ_EARLY_DATA_FINISH)
                  || !TEST_int_eq(SSL_get_early_data_status(serverssl),
                                  SSL_EARLY_DATA_ACCEPTED))
              goto end;
      }
  
      /* Complete the connection */
      if (!TEST_true(create_ssl_connection(serverssl, clientssl, SSL_ERROR_NONE))
              || !TEST_int_eq(SSL_session_reused(clientssl), (usecb > 0) ? 1 : 0)
              || !TEST_int_eq(allow_ed_cb_called, usecb > 0 ? 1 : 0))
          goto end;
  
      testresult = 1;
  
   end:
      SSL_SESSION_free(sess);
      SSL_SESSION_free(clientpsk);
      SSL_SESSION_free(serverpsk);
      clientpsk = serverpsk = NULL;
      SSL_free(serverssl);
      SSL_free(clientssl);
      SSL_CTX_free(sctx);
      SSL_CTX_free(cctx);
      return testresult;
  }
  
  static int test_early_data_replay(int idx)
  {
      int ret = 1, usecb, confopt;
  
      for (usecb = 0; usecb < 3; usecb++) {
          for (confopt = 0; confopt < 2; confopt++)
              ret &= test_early_data_replay_int(idx, usecb, confopt);
      }
  
      return ret;
  }
  
  /*
   * Helper function to test that a server attempting to read early data can
   * handle a connection from a client where the early data should be skipped.
   * testtype: 0 == No HRR
   * testtype: 1 == HRR
   * testtype: 2 == HRR, invalid early_data sent after HRR
   * testtype: 3 == recv_max_early_data set to 0
   */
  static int early_data_skip_helper(int testtype, int idx)
  {
      SSL_CTX *cctx = NULL, *sctx = NULL;
      SSL *clientssl = NULL, *serverssl = NULL;
      int testresult = 0;
      SSL_SESSION *sess = NULL;
      unsigned char buf[20];
      size_t readbytes, written;
  
      if (!TEST_true(setupearly_data_test(&cctx, &sctx, &clientssl,
                                          &serverssl, &sess, idx)))
          goto end;
  
      if (testtype == 1 || testtype == 2) {
          /* Force an HRR to occur */
  #if defined(OPENSSL_NO_EC)
          if (!TEST_true(SSL_set1_groups_list(serverssl, "ffdhe3072")))
              goto end;
  #else
          if (!TEST_true(SSL_set1_groups_list(serverssl, "P-256")))
              goto end;
  #endif
      } else if (idx == 2) {
          /*
           * We force early_data rejection by ensuring the PSK identity is
           * unrecognised
           */
          srvid = "Dummy Identity";
      } else {
          /*
           * Deliberately corrupt the creation time. We take 20 seconds off the
           * time. It could be any value as long as it is not within tolerance.
           * This should mean the ticket is rejected.
           */
          if (!TEST_true(SSL_SESSION_set_time(sess, (long)(time(NULL) - 20))))
              goto end;
      }
  
      if (testtype == 3
              && !TEST_true(SSL_set_recv_max_early_data(serverssl, 0)))
          goto end;
  
      /* Write some early data */
      if (!TEST_true(SSL_write_early_data(clientssl, MSG1, strlen(MSG1),
                                          &written))
              || !TEST_size_t_eq(written, strlen(MSG1)))
          goto end;
  
      /* Server should reject the early data */
      if (!TEST_int_eq(SSL_read_early_data(serverssl, buf, sizeof(buf),
                                           &readbytes),
                       SSL_READ_EARLY_DATA_FINISH)
              || !TEST_size_t_eq(readbytes, 0)
              || !TEST_int_eq(SSL_get_early_data_status(serverssl),
                              SSL_EARLY_DATA_REJECTED))
          goto end;
  
      switch (testtype) {
      case 0:
          /* Nothing to do */
          break;
  
      case 1:
          /*
           * Finish off the handshake. We perform the same writes and reads as
           * further down but we expect them to fail due to the incomplete
           * handshake.
           */
          if (!TEST_false(SSL_write_ex(clientssl, MSG2, strlen(MSG2), &written))
                  || !TEST_false(SSL_read_ex(serverssl, buf, sizeof(buf),
                                 &readbytes)))
              goto end;
          break;
  
      case 2:
          {
              BIO *wbio = SSL_get_wbio(clientssl);
              /* A record that will appear as bad early_data */
              const unsigned char bad_early_data[] = {
                  0x17, 0x03, 0x03, 0x00, 0x01, 0x00
              };
  
              /*
               * We force the client to attempt a write. This will fail because
               * we're still in the handshake. It will cause the second
               * ClientHello to be sent.
               */
              if (!TEST_false(SSL_write_ex(clientssl, MSG2, strlen(MSG2),
                                           &written)))
                  goto end;
  
              /*
               * Inject some early_data after the second ClientHello. This should
               * cause the server to fail
               */
              if (!TEST_true(BIO_write_ex(wbio, bad_early_data,
                                          sizeof(bad_early_data), &written)))
                  goto end;
          }
          /* fallthrough */
  
      case 3:
          /*
           * This client has sent more early_data than we are willing to skip
           * (case 3) or sent invalid early_data (case 2) so the connection should
           * abort.
           */
          if (!TEST_false(SSL_read_ex(serverssl, buf, sizeof(buf), &readbytes))
                  || !TEST_int_eq(SSL_get_error(serverssl, 0), SSL_ERROR_SSL))
              goto end;
  
          /* Connection has failed - nothing more to do */
          testresult = 1;
          goto end;
  
      default:
          TEST_error("Invalid test type");
          goto end;
      }
  
      /*
       * Should be able to send normal data despite rejection of early data. The
       * early_data should be skipped.
       */
      if (!TEST_true(SSL_write_ex(clientssl, MSG2, strlen(MSG2), &written))
              || !TEST_size_t_eq(written, strlen(MSG2))
              || !TEST_int_eq(SSL_get_early_data_status(clientssl),
                              SSL_EARLY_DATA_REJECTED)
              || !TEST_true(SSL_read_ex(serverssl, buf, sizeof(buf), &readbytes))
              || !TEST_mem_eq(buf, readbytes, MSG2, strlen(MSG2)))
          goto end;
  
      testresult = 1;
  
   end:
      SSL_SESSION_free(clientpsk);
      SSL_SESSION_free(serverpsk);
      clientpsk = serverpsk = NULL;
      SSL_SESSION_free(sess);
      SSL_free(serverssl);
      SSL_free(clientssl);
      SSL_CTX_free(sctx);
      SSL_CTX_free(cctx);
      return testresult;
  }
  
  /*
   * Test that a server attempting to read early data can handle a connection
   * from a client where the early data is not acceptable.
   */
  static int test_early_data_skip(int idx)
  {
      return early_data_skip_helper(0, idx);
  }
  
  /*
   * Test that a server attempting to read early data can handle a connection
   * from a client where an HRR occurs.
   */
  static int test_early_data_skip_hrr(int idx)
  {
      return early_data_skip_helper(1, idx);
  }
  
  /*
   * Test that a server attempting to read early data can handle a connection
   * from a client where an HRR occurs and correctly fails if early_data is sent
   * after the HRR
   */
  static int test_early_data_skip_hrr_fail(int idx)
  {
      return early_data_skip_helper(2, idx);
  }
  
  /*
   * Test that a server attempting to read early data will abort if it tries to
   * skip over too much.
   */
  static int test_early_data_skip_abort(int idx)
  {
      return early_data_skip_helper(3, idx);
  }
  
  /*
   * Test that a server attempting to read early data can handle a connection
   * from a client that doesn't send any.
   */
  static int test_early_data_not_sent(int idx)
  {
      SSL_CTX *cctx = NULL, *sctx = NULL;
      SSL *clientssl = NULL, *serverssl = NULL;
      int testresult = 0;
      SSL_SESSION *sess = NULL;
      unsigned char buf[20];
      size_t readbytes, written;
  
      if (!TEST_true(setupearly_data_test(&cctx, &sctx, &clientssl,
                                          &serverssl, &sess, idx)))
          goto end;
  
      /* Write some data - should block due to handshake with server */
      SSL_set_connect_state(clientssl);
      if (!TEST_false(SSL_write_ex(clientssl, MSG1, strlen(MSG1), &written)))
          goto end;
  
      /* Server should detect that early data has not been sent */
      if (!TEST_int_eq(SSL_read_early_data(serverssl, buf, sizeof(buf),
                                           &readbytes),
                       SSL_READ_EARLY_DATA_FINISH)
              || !TEST_size_t_eq(readbytes, 0)
              || !TEST_int_eq(SSL_get_early_data_status(serverssl),
                              SSL_EARLY_DATA_NOT_SENT)
              || !TEST_int_eq(SSL_get_early_data_status(clientssl),
                              SSL_EARLY_DATA_NOT_SENT))
          goto end;
  
      /* Continue writing the message we started earlier */
      if (!TEST_true(SSL_write_ex(clientssl, MSG1, strlen(MSG1), &written))
              || !TEST_size_t_eq(written, strlen(MSG1))
              || !TEST_true(SSL_read_ex(serverssl, buf, sizeof(buf), &readbytes))
              || !TEST_mem_eq(buf, readbytes, MSG1, strlen(MSG1))
              || !SSL_write_ex(serverssl, MSG2, strlen(MSG2), &written)
              || !TEST_size_t_eq(written, strlen(MSG2)))
          goto end;
  
      if (!TEST_true(SSL_read_ex(clientssl, buf, sizeof(buf), &readbytes))
              || !TEST_mem_eq(buf, readbytes, MSG2, strlen(MSG2)))
          goto end;
  
      testresult = 1;
  
   end:
      SSL_SESSION_free(sess);
      SSL_SESSION_free(clientpsk);
      SSL_SESSION_free(serverpsk);
      clientpsk = serverpsk = NULL;
      SSL_free(serverssl);
      SSL_free(clientssl);
      SSL_CTX_free(sctx);
      SSL_CTX_free(cctx);
      return testresult;
  }
  
  static const char *servalpn;
  
  static int alpn_select_cb(SSL *ssl, const unsigned char **out,
                            unsigned char *outlen, const unsigned char *in,
                            unsigned int inlen, void *arg)
  {
      unsigned int protlen = 0;
      const unsigned char *prot;
  
      for (prot = in; prot < in + inlen; prot += protlen) {
          protlen = *prot++;
          if (in + inlen < prot + protlen)
              return SSL_TLSEXT_ERR_NOACK;
  
          if (protlen == strlen(servalpn)
                  && memcmp(prot, servalpn, protlen) == 0) {
              *out = prot;
              *outlen = protlen;
              return SSL_TLSEXT_ERR_OK;
          }
      }
  
      return SSL_TLSEXT_ERR_NOACK;
  }
  
  /* Test that a PSK can be used to send early_data */
  static int test_early_data_psk(int idx)
  {
      SSL_CTX *cctx = NULL, *sctx = NULL;
      SSL *clientssl = NULL, *serverssl = NULL;
      int testresult = 0;
      SSL_SESSION *sess = NULL;
      unsigned char alpnlist[] = {
          0x08, 'g', 'o', 'o', 'd', 'a', 'l', 'p', 'n', 0x07, 'b', 'a', 'd', 'a',
          'l', 'p', 'n'
      };
  #define GOODALPNLEN     9
  #define BADALPNLEN      8
  #define GOODALPN        (alpnlist)
  #define BADALPN         (alpnlist + GOODALPNLEN)
      int err = 0;
      unsigned char buf[20];
      size_t readbytes, written;
      int readearlyres = SSL_READ_EARLY_DATA_SUCCESS, connectres = 1;
      int edstatus = SSL_EARLY_DATA_ACCEPTED;
  
      /* We always set this up with a final parameter of "2" for PSK */
      if (!TEST_true(setupearly_data_test(&cctx, &sctx, &clientssl,
                                          &serverssl, &sess, 2)))
          goto end;
  
      servalpn = "goodalpn";
  
      /*
       * Note: There is no test for inconsistent SNI with late client detection.
       * This is because servers do not acknowledge SNI even if they are using
       * it in a resumption handshake - so it is not actually possible for a
       * client to detect a problem.
       */
      switch (idx) {
      case 0:
          /* Set inconsistent SNI (early client detection) */
          err = SSL_R_INCONSISTENT_EARLY_DATA_SNI;
          if (!TEST_true(SSL_SESSION_set1_hostname(sess, "goodhost"))
                  || !TEST_true(SSL_set_tlsext_host_name(clientssl, "badhost")))
              goto end;
          break;
  
      case 1:
          /* Set inconsistent ALPN (early client detection) */
          err = SSL_R_INCONSISTENT_EARLY_DATA_ALPN;
          /* SSL_set_alpn_protos returns 0 for success and 1 for failure */
          if (!TEST_true(SSL_SESSION_set1_alpn_selected(sess, GOODALPN,
                                                        GOODALPNLEN))
                  || !TEST_false(SSL_set_alpn_protos(clientssl, BADALPN,
                                                     BADALPNLEN)))
              goto end;
          break;
  
      case 2:
          /*
           * Set invalid protocol version. Technically this affects PSKs without
           * early_data too, but we test it here because it is similar to the
           * SNI/ALPN consistency tests.
           */
          err = SSL_R_BAD_PSK;
          if (!TEST_true(SSL_SESSION_set_protocol_version(sess, TLS1_2_VERSION)))
              goto end;
          break;
  
      case 3:
          /*
           * Set inconsistent SNI (server side). In this case the connection
           * will succeed and accept early_data. In TLSv1.3 on the server side SNI
           * is associated with each handshake - not the session. Therefore it
           * should not matter that we used a different server name last time.
           */
          SSL_SESSION_free(serverpsk);
          serverpsk = SSL_SESSION_dup(clientpsk);
          if (!TEST_ptr(serverpsk)
                  || !TEST_true(SSL_SESSION_set1_hostname(serverpsk, "badhost")))
              goto end;
          /* Fall through */
      case 4:
          /* Set consistent SNI */
          if (!TEST_true(SSL_SESSION_set1_hostname(sess, "goodhost"))
                  || !TEST_true(SSL_set_tlsext_host_name(clientssl, "goodhost"))
                  || !TEST_true(SSL_CTX_set_tlsext_servername_callback(sctx,
                                  hostname_cb)))
              goto end;
          break;
  
      case 5:
          /*
           * Set inconsistent ALPN (server detected). In this case the connection
           * will succeed but reject early_data.
           */
          servalpn = "badalpn";
          edstatus = SSL_EARLY_DATA_REJECTED;
          readearlyres = SSL_READ_EARLY_DATA_FINISH;
          /* Fall through */
      case 6:
          /*
           * Set consistent ALPN.
           * SSL_set_alpn_protos returns 0 for success and 1 for failure. It
           * accepts a list of protos (each one length prefixed).
           * SSL_set1_alpn_selected accepts a single protocol (not length
           * prefixed)
           */
          if (!TEST_true(SSL_SESSION_set1_alpn_selected(sess, GOODALPN + 1,
                                                        GOODALPNLEN - 1))
                  || !TEST_false(SSL_set_alpn_protos(clientssl, GOODALPN,
                                                     GOODALPNLEN)))
              goto end;
  
          SSL_CTX_set_alpn_select_cb(sctx, alpn_select_cb, NULL);
          break;
  
      case 7:
          /* Set inconsistent ALPN (late client detection) */
          SSL_SESSION_free(serverpsk);
          serverpsk = SSL_SESSION_dup(clientpsk);
          if (!TEST_ptr(serverpsk)
                  || !TEST_true(SSL_SESSION_set1_alpn_selected(clientpsk,
                                                               BADALPN + 1,
                                                               BADALPNLEN - 1))
                  || !TEST_true(SSL_SESSION_set1_alpn_selected(serverpsk,
                                                               GOODALPN + 1,
                                                               GOODALPNLEN - 1))
                  || !TEST_false(SSL_set_alpn_protos(clientssl, alpnlist,
                                                     sizeof(alpnlist))))
              goto end;
          SSL_CTX_set_alpn_select_cb(sctx, alpn_select_cb, NULL);
          edstatus = SSL_EARLY_DATA_ACCEPTED;
          readearlyres = SSL_READ_EARLY_DATA_SUCCESS;
          /* SSL_connect() call should fail */
          connectres = -1;
          break;
  
      default:
          TEST_error("Bad test index");
          goto end;
      }
  
      SSL_set_connect_state(clientssl);
      if (err != 0) {
          if (!TEST_false(SSL_write_early_data(clientssl, MSG1, strlen(MSG1),
                                              &written))
                  || !TEST_int_eq(SSL_get_error(clientssl, 0), SSL_ERROR_SSL)
                  || !TEST_int_eq(ERR_GET_REASON(ERR_get_error()), err))
              goto end;
      } else {
          if (!TEST_true(SSL_write_early_data(clientssl, MSG1, strlen(MSG1),
                                              &written)))
              goto end;
  
          if (!TEST_int_eq(SSL_read_early_data(serverssl, buf, sizeof(buf),
                                               &readbytes), readearlyres)
                  || (readearlyres == SSL_READ_EARLY_DATA_SUCCESS
                      && !TEST_mem_eq(buf, readbytes, MSG1, strlen(MSG1)))
                  || !TEST_int_eq(SSL_get_early_data_status(serverssl), edstatus)
                  || !TEST_int_eq(SSL_connect(clientssl), connectres))
              goto end;
      }
  
      testresult = 1;
  
   end:
      SSL_SESSION_free(sess);
      SSL_SESSION_free(clientpsk);
      SSL_SESSION_free(serverpsk);
      clientpsk = serverpsk = NULL;
      SSL_free(serverssl);
      SSL_free(clientssl);
      SSL_CTX_free(sctx);
      SSL_CTX_free(cctx);
      return testresult;
  }
  
  /*
   * Test TLSv1.3 PSK can be used to send early_data with all 5 ciphersuites
   * idx == 0: Test with TLS1_3_RFC_AES_128_GCM_SHA256
   * idx == 1: Test with TLS1_3_RFC_AES_256_GCM_SHA384
   * idx == 2: Test with TLS1_3_RFC_CHACHA20_POLY1305_SHA256,
   * idx == 3: Test with TLS1_3_RFC_AES_128_CCM_SHA256
   * idx == 4: Test with TLS1_3_RFC_AES_128_CCM_8_SHA256
   */
  static int test_early_data_psk_with_all_ciphers(int idx)
  {
      SSL_CTX *cctx = NULL, *sctx = NULL;
      SSL *clientssl = NULL, *serverssl = NULL;
      int testresult = 0;
      SSL_SESSION *sess = NULL;
      unsigned char buf[20];
      size_t readbytes, written;
      const SSL_CIPHER *cipher;
      const char *cipher_str[] = {
          TLS1_3_RFC_AES_128_GCM_SHA256,
          TLS1_3_RFC_AES_256_GCM_SHA384,
  # if !defined(OPENSSL_NO_CHACHA) && !defined(OPENSSL_NO_POLY1305)
          TLS1_3_RFC_CHACHA20_POLY1305_SHA256,
  # else
          NULL,
  # endif
          TLS1_3_RFC_AES_128_CCM_SHA256,
          TLS1_3_RFC_AES_128_CCM_8_SHA256
      };
      const unsigned char *cipher_bytes[] = {
          TLS13_AES_128_GCM_SHA256_BYTES,
          TLS13_AES_256_GCM_SHA384_BYTES,
  # if !defined(OPENSSL_NO_CHACHA) && !defined(OPENSSL_NO_POLY1305)
          TLS13_CHACHA20_POLY1305_SHA256_BYTES,
  # else
          NULL,
  # endif
          TLS13_AES_128_CCM_SHA256_BYTES,
          TLS13_AES_128_CCM_8_SHA256_BYTES
      };
  
      if (cipher_str[idx] == NULL)
          return 1;
      /* Skip ChaCha20Poly1305 as currently FIPS module does not support it */
      if (idx == 2 && is_fips == 1)
          return 1;
  
      /* We always set this up with a final parameter of "2" for PSK */
      if (!TEST_true(setupearly_data_test(&cctx, &sctx, &clientssl,
                                          &serverssl, &sess, 2)))
          goto end;
  
      if (idx == 4) {
          /* CCM8 ciphers are considered low security due to their short tag */
          SSL_set_security_level(clientssl, 0);
          SSL_set_security_level(serverssl, 0);
      }
  
      if (!TEST_true(SSL_set_ciphersuites(clientssl, cipher_str[idx]))
              || !TEST_true(SSL_set_ciphersuites(serverssl, cipher_str[idx])))
          goto end;
  
      /*
       * 'setupearly_data_test' creates only one instance of SSL_SESSION
       * and assigns to both client and server with incremented reference
       * and the same instance is updated in 'sess'.
       * So updating ciphersuite in 'sess' which will get reflected in
       * PSK handshake using psk use sess and find sess cb.
       */
      cipher = SSL_CIPHER_find(clientssl, cipher_bytes[idx]);
      if (!TEST_ptr(cipher) || !TEST_true(SSL_SESSION_set_cipher(sess, cipher)))
          goto end;
  
      SSL_set_connect_state(clientssl);
      if (!TEST_true(SSL_write_early_data(clientssl, MSG1, strlen(MSG1),
                                          &written)))
          goto end;
  
      if (!TEST_int_eq(SSL_read_early_data(serverssl, buf, sizeof(buf),
                                           &readbytes),
                                           SSL_READ_EARLY_DATA_SUCCESS)
              || !TEST_mem_eq(buf, readbytes, MSG1, strlen(MSG1))
              || !TEST_int_eq(SSL_get_early_data_status(serverssl),
                                                        SSL_EARLY_DATA_ACCEPTED)
              || !TEST_int_eq(SSL_connect(clientssl), 1)
              || !TEST_int_eq(SSL_accept(serverssl), 1))
          goto end;
  
      /* Send some normal data from client to server */
      if (!TEST_true(SSL_write_ex(clientssl, MSG2, strlen(MSG2), &written))
              || !TEST_size_t_eq(written, strlen(MSG2)))
          goto end;
  
      if (!TEST_true(SSL_read_ex(serverssl, buf, sizeof(buf), &readbytes))
              || !TEST_mem_eq(buf, readbytes, MSG2, strlen(MSG2)))
          goto end;
  
      testresult = 1;
   end:
      SSL_SESSION_free(sess);
      SSL_SESSION_free(clientpsk);
      SSL_SESSION_free(serverpsk);
      clientpsk = serverpsk = NULL;
      if (clientssl != NULL)
          SSL_shutdown(clientssl);
      if (serverssl != NULL)
          SSL_shutdown(serverssl);
      SSL_free(serverssl);
      SSL_free(clientssl);
      SSL_CTX_free(sctx);
      SSL_CTX_free(cctx);
      return testresult;
  }
  
  /*
   * Test that a server that doesn't try to read early data can handle a
   * client sending some.
   */
  static int test_early_data_not_expected(int idx)
  {
      SSL_CTX *cctx = NULL, *sctx = NULL;
      SSL *clientssl = NULL, *serverssl = NULL;
      int testresult = 0;
      SSL_SESSION *sess = NULL;
      unsigned char buf[20];
      size_t readbytes, written;
  
      if (!TEST_true(setupearly_data_test(&cctx, &sctx, &clientssl,
                                          &serverssl, &sess, idx)))
          goto end;
  
      /* Write some early data */
      if (!TEST_true(SSL_write_early_data(clientssl, MSG1, strlen(MSG1),
                                          &written)))
          goto end;
  
      /*
       * Server should skip over early data and then block waiting for client to
       * continue handshake
       */
      if (!TEST_int_le(SSL_accept(serverssl), 0)
       || !TEST_int_gt(SSL_connect(clientssl), 0)
       || !TEST_int_eq(SSL_get_early_data_status(serverssl),
                       SSL_EARLY_DATA_REJECTED)
       || !TEST_int_gt(SSL_accept(serverssl), 0)
       || !TEST_int_eq(SSL_get_early_data_status(clientssl),
                       SSL_EARLY_DATA_REJECTED))
          goto end;
  
      /* Send some normal data from client to server */
      if (!TEST_true(SSL_write_ex(clientssl, MSG2, strlen(MSG2), &written))
              || !TEST_size_t_eq(written, strlen(MSG2)))
          goto end;
  
      if (!TEST_true(SSL_read_ex(serverssl, buf, sizeof(buf), &readbytes))
              || !TEST_mem_eq(buf, readbytes, MSG2, strlen(MSG2)))
          goto end;
  
      testresult = 1;
  
   end:
      SSL_SESSION_free(sess);
      SSL_SESSION_free(clientpsk);
      SSL_SESSION_free(serverpsk);
      clientpsk = serverpsk = NULL;
      SSL_free(serverssl);
      SSL_free(clientssl);
      SSL_CTX_free(sctx);
      SSL_CTX_free(cctx);
      return testresult;
  }
  
  
  # ifndef OPENSSL_NO_TLS1_2
  /*
   * Test that a server attempting to read early data can handle a connection
   * from a TLSv1.2 client.
   */
  static int test_early_data_tls1_2(int idx)
  {
      SSL_CTX *cctx = NULL, *sctx = NULL;
      SSL *clientssl = NULL, *serverssl = NULL;
      int testresult = 0;
      unsigned char buf[20];
      size_t readbytes, written;
  
      if (!TEST_true(setupearly_data_test(&cctx, &sctx, &clientssl,
                                          &serverssl, NULL, idx)))
          goto end;
  
      /* Write some data - should block due to handshake with server */
      SSL_set_max_proto_version(clientssl, TLS1_2_VERSION);
      SSL_set_connect_state(clientssl);
      if (!TEST_false(SSL_write_ex(clientssl, MSG1, strlen(MSG1), &written)))
          goto end;
  
      /*
       * Server should do TLSv1.2 handshake. First it will block waiting for more
       * messages from client after ServerDone. Then SSL_read_early_data should
       * finish and detect that early data has not been sent
       */
      if (!TEST_int_eq(SSL_read_early_data(serverssl, buf, sizeof(buf),
                                           &readbytes),
                       SSL_READ_EARLY_DATA_ERROR))
          goto end;
  
      /*
       * Continue writing the message we started earlier. Will still block waiting
       * for the CCS/Finished from server
       */
      if (!TEST_false(SSL_write_ex(clientssl, MSG1, strlen(MSG1), &written))
              || !TEST_int_eq(SSL_read_early_data(serverssl, buf, sizeof(buf),
                                                  &readbytes),
                              SSL_READ_EARLY_DATA_FINISH)
              || !TEST_size_t_eq(readbytes, 0)
              || !TEST_int_eq(SSL_get_early_data_status(serverssl),
                              SSL_EARLY_DATA_NOT_SENT))
          goto end;
  
      /* Continue writing the message we started earlier */
      if (!TEST_true(SSL_write_ex(clientssl, MSG1, strlen(MSG1), &written))
              || !TEST_size_t_eq(written, strlen(MSG1))
              || !TEST_int_eq(SSL_get_early_data_status(clientssl),
                              SSL_EARLY_DATA_NOT_SENT)
              || !TEST_true(SSL_read_ex(serverssl, buf, sizeof(buf), &readbytes))
              || !TEST_mem_eq(buf, readbytes, MSG1, strlen(MSG1))
              || !TEST_true(SSL_write_ex(serverssl, MSG2, strlen(MSG2), &written))
              || !TEST_size_t_eq(written, strlen(MSG2))
              || !SSL_read_ex(clientssl, buf, sizeof(buf), &readbytes)
              || !TEST_mem_eq(buf, readbytes, MSG2, strlen(MSG2)))
          goto end;
  
      testresult = 1;
  
   end:
      SSL_SESSION_free(clientpsk);
      SSL_SESSION_free(serverpsk);
      clientpsk = serverpsk = NULL;
      SSL_free(serverssl);
      SSL_free(clientssl);
      SSL_CTX_free(sctx);
      SSL_CTX_free(cctx);
  
      return testresult;
  }
  # endif /* OPENSSL_NO_TLS1_2 */
  
  /*
   * Test configuring the TLSv1.3 ciphersuites
   *
   * Test 0: Set a default ciphersuite in the SSL_CTX (no explicit cipher_list)
   * Test 1: Set a non-default ciphersuite in the SSL_CTX (no explicit cipher_list)
   * Test 2: Set a default ciphersuite in the SSL (no explicit cipher_list)
   * Test 3: Set a non-default ciphersuite in the SSL (no explicit cipher_list)
   * Test 4: Set a default ciphersuite in the SSL_CTX (SSL_CTX cipher_list)
   * Test 5: Set a non-default ciphersuite in the SSL_CTX (SSL_CTX cipher_list)
   * Test 6: Set a default ciphersuite in the SSL (SSL_CTX cipher_list)
   * Test 7: Set a non-default ciphersuite in the SSL (SSL_CTX cipher_list)
   * Test 8: Set a default ciphersuite in the SSL (SSL cipher_list)
   * Test 9: Set a non-default ciphersuite in the SSL (SSL cipher_list)
   */
  static int test_set_ciphersuite(int idx)
  {
      SSL_CTX *cctx = NULL, *sctx = NULL;
      SSL *clientssl = NULL, *serverssl = NULL;
      int testresult = 0;
  
      if (!TEST_true(create_ssl_ctx_pair(libctx, TLS_server_method(),
                                         TLS_client_method(), TLS1_VERSION, 0,
                                         &sctx, &cctx, cert, privkey))
              || !TEST_true(SSL_CTX_set_ciphersuites(sctx,
                             "TLS_AES_128_GCM_SHA256:TLS_AES_128_CCM_SHA256")))
          goto end;
  
      if (idx >=4 && idx <= 7) {
          /* SSL_CTX explicit cipher list */
          if (!TEST_true(SSL_CTX_set_cipher_list(cctx, "AES256-GCM-SHA384")))
              goto end;
      }
  
      if (idx == 0 || idx == 4) {
          /* Default ciphersuite */
          if (!TEST_true(SSL_CTX_set_ciphersuites(cctx,
                                                  "TLS_AES_128_GCM_SHA256")))
              goto end;
      } else if (idx == 1 || idx == 5) {
          /* Non default ciphersuite */
          if (!TEST_true(SSL_CTX_set_ciphersuites(cctx,
                                                  "TLS_AES_128_CCM_SHA256")))
              goto end;
      }
  
      if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl,
                                            &clientssl, NULL, NULL)))
          goto end;
  
      if (idx == 8 || idx == 9) {
          /* SSL explicit cipher list */
          if (!TEST_true(SSL_set_cipher_list(clientssl, "AES256-GCM-SHA384")))
              goto end;
      }
  
      if (idx == 2 || idx == 6 || idx == 8) {
          /* Default ciphersuite */
          if (!TEST_true(SSL_set_ciphersuites(clientssl,
                                              "TLS_AES_128_GCM_SHA256")))
              goto end;
      } else if (idx == 3 || idx == 7 || idx == 9) {
          /* Non default ciphersuite */
          if (!TEST_true(SSL_set_ciphersuites(clientssl,
                                              "TLS_AES_128_CCM_SHA256")))
              goto end;
      }
  
      if (!TEST_true(create_ssl_connection(serverssl, clientssl, SSL_ERROR_NONE)))
          goto end;
  
      testresult = 1;
  
   end:
      SSL_free(serverssl);
      SSL_free(clientssl);
      SSL_CTX_free(sctx);
      SSL_CTX_free(cctx);
  
      return testresult;
  }
  
  static int test_ciphersuite_change(void)
  {
      SSL_CTX *cctx = NULL, *sctx = NULL;
      SSL *clientssl = NULL, *serverssl = NULL;
      SSL_SESSION *clntsess = NULL;
      int testresult = 0;
      const SSL_CIPHER *aes_128_gcm_sha256 = NULL;
  
      /* Create a session based on SHA-256 */
      if (!TEST_true(create_ssl_ctx_pair(libctx, TLS_server_method(),
                                         TLS_client_method(), TLS1_VERSION, 0,
                                         &sctx, &cctx, cert, privkey))
              || !TEST_true(SSL_CTX_set_ciphersuites(sctx,
                                                     "TLS_AES_128_GCM_SHA256:"
                                                     "TLS_AES_256_GCM_SHA384:"
                                                     "TLS_AES_128_CCM_SHA256"))
              || !TEST_true(SSL_CTX_set_ciphersuites(cctx,
                                                     "TLS_AES_128_GCM_SHA256")))
          goto end;
  
      if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl, &clientssl,
                                        NULL, NULL))
              || !TEST_true(create_ssl_connection(serverssl, clientssl,
                                                  SSL_ERROR_NONE)))
          goto end;
  
      clntsess = SSL_get1_session(clientssl);
      /* Save for later */
      aes_128_gcm_sha256 = SSL_SESSION_get0_cipher(clntsess);
      SSL_shutdown(clientssl);
      SSL_shutdown(serverssl);
      SSL_free(serverssl);
      SSL_free(clientssl);
      serverssl = clientssl = NULL;
  
      /* Check we can resume a session with a different SHA-256 ciphersuite */
      if (!TEST_true(SSL_CTX_set_ciphersuites(cctx,
                                              "TLS_AES_128_CCM_SHA256"))
              || !TEST_true(create_ssl_objects(sctx, cctx, &serverssl,
                                               &clientssl, NULL, NULL))
              || !TEST_true(SSL_set_session(clientssl, clntsess))
              || !TEST_true(create_ssl_connection(serverssl, clientssl,
                                                  SSL_ERROR_NONE))
              || !TEST_true(SSL_session_reused(clientssl)))
          goto end;
  
      SSL_SESSION_free(clntsess);
      clntsess = SSL_get1_session(clientssl);
      SSL_shutdown(clientssl);
      SSL_shutdown(serverssl);
      SSL_free(serverssl);
      SSL_free(clientssl);
      serverssl = clientssl = NULL;
  
      /*
       * Check attempting to resume a SHA-256 session with no SHA-256 ciphersuites
       * succeeds but does not resume.
       */
      if (!TEST_true(SSL_CTX_set_ciphersuites(cctx, "TLS_AES_256_GCM_SHA384"))
              || !TEST_true(create_ssl_objects(sctx, cctx, &serverssl, &clientssl,
                                               NULL, NULL))
              || !TEST_true(SSL_set_session(clientssl, clntsess))
              || !TEST_true(create_ssl_connection(serverssl, clientssl,
                                                  SSL_ERROR_SSL))
              || !TEST_false(SSL_session_reused(clientssl)))
          goto end;
  
      SSL_SESSION_free(clntsess);
      clntsess = NULL;
      SSL_shutdown(clientssl);
      SSL_shutdown(serverssl);
      SSL_free(serverssl);
      SSL_free(clientssl);
      serverssl = clientssl = NULL;
  
      /* Create a session based on SHA384 */
      if (!TEST_true(SSL_CTX_set_ciphersuites(cctx, "TLS_AES_256_GCM_SHA384"))
              || !TEST_true(create_ssl_objects(sctx, cctx, &serverssl,
                                            &clientssl, NULL, NULL))
              || !TEST_true(create_ssl_connection(serverssl, clientssl,
                                                  SSL_ERROR_NONE)))
          goto end;
  
      clntsess = SSL_get1_session(clientssl);
      SSL_shutdown(clientssl);
      SSL_shutdown(serverssl);
      SSL_free(serverssl);
      SSL_free(clientssl);
      serverssl = clientssl = NULL;
  
      if (!TEST_true(SSL_CTX_set_ciphersuites(cctx,
                     "TLS_AES_128_GCM_SHA256:TLS_AES_256_GCM_SHA384"))
              || !TEST_true(SSL_CTX_set_ciphersuites(sctx,
                                                     "TLS_AES_256_GCM_SHA384"))
              || !TEST_true(create_ssl_objects(sctx, cctx, &serverssl, &clientssl,
                                               NULL, NULL))
              || !TEST_true(SSL_set_session(clientssl, clntsess))
                 /*
                  * We use SSL_ERROR_WANT_READ below so that we can pause the
                  * connection after the initial ClientHello has been sent to
                  * enable us to make some session changes.
                  */
              || !TEST_false(create_ssl_connection(serverssl, clientssl,
                                                  SSL_ERROR_WANT_READ)))
          goto end;
  
      /* Trick the client into thinking this session is for a different digest */
      clntsess->cipher = aes_128_gcm_sha256;
      clntsess->cipher_id = clntsess->cipher->id;
  
      /*
       * Continue the previously started connection. Server has selected a SHA-384
       * ciphersuite, but client thinks the session is for SHA-256, so it should
       * bail out.
       */
      if (!TEST_false(create_ssl_connection(serverssl, clientssl,
                                                  SSL_ERROR_SSL))
              || !TEST_int_eq(ERR_GET_REASON(ERR_get_error()),
                              SSL_R_CIPHERSUITE_DIGEST_HAS_CHANGED))
          goto end;
  
      testresult = 1;
  
   end:
      SSL_SESSION_free(clntsess);
      SSL_free(serverssl);
      SSL_free(clientssl);
      SSL_CTX_free(sctx);
      SSL_CTX_free(cctx);
  
      return testresult;
  }
  
  /*
   * Test TLSv1.3 Key exchange
   * Test 0 = Test all ECDHE Key exchange with TLSv1.3 client and server
   * Test 1 = Test NID_X9_62_prime256v1 with TLSv1.3 client and server
   * Test 2 = Test NID_secp384r1 with TLSv1.3 client and server
   * Test 3 = Test NID_secp521r1 with TLSv1.3 client and server
   * Test 4 = Test NID_X25519 with TLSv1.3 client and server
   * Test 5 = Test NID_X448 with TLSv1.3 client and server
   * Test 6 = Test all FFDHE Key exchange with TLSv1.3 client and server
   * Test 7 = Test NID_ffdhe2048 with TLSv1.3 client and server
   * Test 8 = Test NID_ffdhe3072 with TLSv1.3 client and server
   * Test 9 = Test NID_ffdhe4096 with TLSv1.3 client and server
   * Test 10 = Test NID_ffdhe6144 with TLSv1.3 client and server
   * Test 11 = Test NID_ffdhe8192 with TLSv1.3 client and server
   * Test 12 = Test all ECDHE with TLSv1.2 client and server
   * Test 13 = Test all FFDHE with TLSv1.2 client and server
   */
  # ifndef OPENSSL_NO_EC
  static int ecdhe_kexch_groups[] = {NID_X9_62_prime256v1, NID_secp384r1,
                                     NID_secp521r1, NID_X25519, NID_X448};
  # endif
  # ifndef OPENSSL_NO_DH
  static int ffdhe_kexch_groups[] = {NID_ffdhe2048, NID_ffdhe3072, NID_ffdhe4096,
                                     NID_ffdhe6144, NID_ffdhe8192};
  # endif
  static int test_key_exchange(int idx)
  {
      SSL_CTX *sctx = NULL, *cctx = NULL;
      SSL *serverssl = NULL, *clientssl = NULL;
      int testresult = 0;
      int kexch_alg;
      int *kexch_groups = &kexch_alg;
      int kexch_groups_size = 1;
      int max_version = TLS1_3_VERSION;
      char *kexch_name0 = NULL;
  
      switch (idx) {
  # ifndef OPENSSL_NO_EC
  # ifndef OPENSSL_NO_TLS1_2
          case 12:
              max_version = TLS1_2_VERSION;
  # endif
              /* Fall through */
          case 0:
              kexch_groups = ecdhe_kexch_groups;
              kexch_groups_size = OSSL_NELEM(ecdhe_kexch_groups);
              kexch_name0 = "secp256r1";
              break;
          case 1:
              kexch_alg = NID_X9_62_prime256v1;
              kexch_name0 = "secp256r1";
              break;
          case 2:
              kexch_alg = NID_secp384r1;
              kexch_name0 = "secp384r1";
              break;
          case 3:
              kexch_alg = NID_secp521r1;
              kexch_name0 = "secp521r1";
              break;
          case 4:
              kexch_alg = NID_X25519;
              kexch_name0 = "x25519";
              break;
          case 5:
              kexch_alg = NID_X448;
              kexch_name0 = "x448";
              break;
  # endif
  # ifndef OPENSSL_NO_DH
  # ifndef OPENSSL_NO_TLS1_2
          case 13:
              max_version = TLS1_2_VERSION;
              kexch_name0 = "ffdhe2048";
  # endif
              /* Fall through */
          case 6:
              kexch_groups = ffdhe_kexch_groups;
              kexch_groups_size = OSSL_NELEM(ffdhe_kexch_groups);
              kexch_name0 = "ffdhe2048";
              break;
          case 7:
              kexch_alg = NID_ffdhe2048;
              kexch_name0 = "ffdhe2048";
              break;
          case 8:
              kexch_alg = NID_ffdhe3072;
              kexch_name0 = "ffdhe3072";
              break;
          case 9:
              kexch_alg = NID_ffdhe4096;
              kexch_name0 = "ffdhe4096";
              break;
          case 10:
              kexch_alg = NID_ffdhe6144;
              kexch_name0 = "ffdhe6144";
              break;
          case 11:
              kexch_alg = NID_ffdhe8192;
              kexch_name0 = "ffdhe8192";
              break;
  # endif
          default:
              /* We're skipping this test */
              return 1;
      }
  
      if (!TEST_true(create_ssl_ctx_pair(libctx, TLS_server_method(),
                                         TLS_client_method(), TLS1_VERSION,
                                         max_version, &sctx, &cctx, cert,
                                         privkey)))
          goto end;
  
      if (!TEST_true(SSL_CTX_set_ciphersuites(sctx,
                     TLS1_3_RFC_AES_128_GCM_SHA256)))
          goto end;
  
      if (!TEST_true(SSL_CTX_set_ciphersuites(cctx,
                     TLS1_3_RFC_AES_128_GCM_SHA256)))
          goto end;
  
      if (!TEST_true(SSL_CTX_set_cipher_list(sctx,
                     TLS1_TXT_ECDHE_RSA_WITH_AES_128_GCM_SHA256 ":"
                     TLS1_TXT_DHE_RSA_WITH_AES_128_GCM_SHA256))
              || !TEST_true(SSL_CTX_set_dh_auto(sctx, 1)))
          goto end;
  
      /*
       * Must include an EC ciphersuite so that we send supported groups in
       * TLSv1.2
       */
  # ifndef OPENSSL_NO_TLS1_2
      if (!TEST_true(SSL_CTX_set_cipher_list(cctx,
                     TLS1_TXT_ECDHE_RSA_WITH_AES_128_GCM_SHA256 ":"
                     TLS1_TXT_DHE_RSA_WITH_AES_128_GCM_SHA256)))
          goto end;
  # endif
  
      if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl, &clientssl,
                                               NULL, NULL)))
          goto end;
  
      if (!TEST_true(SSL_set1_groups(serverssl, kexch_groups, kexch_groups_size))
          || !TEST_true(SSL_set1_groups(clientssl, kexch_groups, kexch_groups_size)))
          goto end;
  
      if (!TEST_true(create_ssl_connection(serverssl, clientssl, SSL_ERROR_NONE)))
          goto end;
  
      /*
       * If Handshake succeeds the negotiated kexch alg should be the first one in
       * configured, except in the case of FFDHE groups (idx 13), which are
       * TLSv1.3 only so we expect no shared group to exist.
       */
      if (!TEST_int_eq(SSL_get_shared_group(serverssl, 0),
                       idx == 13 ? 0 : kexch_groups[0]))
          goto end;
  
      if (!TEST_str_eq(SSL_group_to_name(serverssl, kexch_groups[0]),
                       kexch_name0))
          goto end;
  
      /* We don't implement RFC 7919 named groups for TLS 1.2. */
      if (idx != 13) {
          if (!TEST_int_eq(SSL_get_negotiated_group(serverssl), kexch_groups[0]))
              goto end;
          if (!TEST_int_eq(SSL_get_negotiated_group(clientssl), kexch_groups[0]))
              goto end;
      }
  
      testresult = 1;
   end:
      SSL_free(serverssl);
      SSL_free(clientssl);
      SSL_CTX_free(sctx);
      SSL_CTX_free(cctx);
      return testresult;
  }
  
  # if !defined(OPENSSL_NO_TLS1_2) \
       && !defined(OPENSSL_NO_EC)  \
       && !defined(OPENSSL_NO_DH)
  static int set_ssl_groups(SSL *serverssl, SSL *clientssl, int clientmulti,
                            int isecdhe, int idx)
  {
      int kexch_alg;
      int *kexch_groups = &kexch_alg;
      int numec, numff;
  
      numec = OSSL_NELEM(ecdhe_kexch_groups);
      numff = OSSL_NELEM(ffdhe_kexch_groups);
      if (isecdhe)
          kexch_alg = ecdhe_kexch_groups[idx];
      else
          kexch_alg = ffdhe_kexch_groups[idx];
  
      if (clientmulti) {
          if (!TEST_true(SSL_set1_groups(serverssl, kexch_groups, 1)))
              return 0;
          if (isecdhe) {
              if (!TEST_true(SSL_set1_groups(clientssl, ecdhe_kexch_groups,
                                             numec)))
                  return 0;
          } else {
              if (!TEST_true(SSL_set1_groups(clientssl, ffdhe_kexch_groups,
                                             numff)))
                  return 0;
          }
      } else {
          if (!TEST_true(SSL_set1_groups(clientssl, kexch_groups, 1)))
              return 0;
          if (isecdhe) {
              if (!TEST_true(SSL_set1_groups(serverssl, ecdhe_kexch_groups,
                                             numec)))
                  return 0;
          } else {
              if (!TEST_true(SSL_set1_groups(serverssl, ffdhe_kexch_groups,
                                             numff)))
                  return 0;
          }
      }
      return 1;
  }
  
  /*-
   * Test the SSL_get_negotiated_group() API across a battery of scenarios.
   * Run through both the ECDHE and FFDHE group lists used in the previous
   * test, for both TLS 1.2 and TLS 1.3, negotiating each group in turn,
   * confirming the expected result; then perform a resumption handshake
   * while offering the same group list, and another resumption handshake
   * offering a different group list.  The returned value should be the
   * negotiated group for the initial handshake; for TLS 1.3 resumption
   * handshakes the returned value will be negotiated on the resumption
   * handshake itself, but for TLS 1.2 resumption handshakes the value will
   * be cached in the session from the original handshake, regardless of what
   * was offered in the resumption ClientHello.
   *
   * Using E for the number of EC groups and F for the number of FF groups:
   * E tests of ECDHE with TLS 1.3, server only has one group
   * F tests of FFDHE with TLS 1.3, server only has one group
   * E tests of ECDHE with TLS 1.2, server only has one group
   * F tests of FFDHE with TLS 1.2, server only has one group
   * E tests of ECDHE with TLS 1.3, client sends only one group
   * F tests of FFDHE with TLS 1.3, client sends only one group
   * E tests of ECDHE with TLS 1.2, client sends only one group
   * F tests of FFDHE with TLS 1.2, client sends only one group
   */
  static int test_negotiated_group(int idx)
  {
      int clientmulti, istls13, isecdhe, numec, numff, numgroups;
      int expectednid;
      SSL_CTX *sctx = NULL, *cctx = NULL;
      SSL *serverssl = NULL, *clientssl = NULL;
      SSL_SESSION *origsess = NULL;
      int testresult = 0;
      int kexch_alg;
      int max_version = TLS1_3_VERSION;
  
      numec = OSSL_NELEM(ecdhe_kexch_groups);
      numff = OSSL_NELEM(ffdhe_kexch_groups);
      numgroups = numec + numff;
      clientmulti = (idx < 2 * numgroups);
      idx = idx % (2 * numgroups);
      istls13 = (idx < numgroups);
      idx = idx % numgroups;
      isecdhe = (idx < numec);
      if (!isecdhe)
          idx -= numec;
      /* Now 'idx' is an index into ecdhe_kexch_groups or ffdhe_kexch_groups */
      if (isecdhe)
          kexch_alg = ecdhe_kexch_groups[idx];
      else
          kexch_alg = ffdhe_kexch_groups[idx];
      /* We expect nothing for the unimplemented TLS 1.2 FFDHE named groups */
      if (!istls13 && !isecdhe)
          expectednid = NID_undef;
      else
          expectednid = kexch_alg;
  
      if (!istls13)
          max_version = TLS1_2_VERSION;
  
      if (!TEST_true(create_ssl_ctx_pair(libctx, TLS_server_method(),
                                         TLS_client_method(), TLS1_VERSION,
                                         max_version, &sctx, &cctx, cert,
                                         privkey)))
          goto end;
  
      /*
       * Force (EC)DHE ciphers for TLS 1.2.
       * Be sure to enable auto tmp DH so that FFDHE can succeed.
       */
      if (!TEST_true(SSL_CTX_set_cipher_list(sctx,
                     TLS1_TXT_ECDHE_RSA_WITH_AES_128_GCM_SHA256 ":"
                     TLS1_TXT_DHE_RSA_WITH_AES_128_GCM_SHA256))
              || !TEST_true(SSL_CTX_set_dh_auto(sctx, 1)))
          goto end;
      if (!TEST_true(SSL_CTX_set_cipher_list(cctx,
                     TLS1_TXT_ECDHE_RSA_WITH_AES_128_GCM_SHA256 ":"
                     TLS1_TXT_DHE_RSA_WITH_AES_128_GCM_SHA256)))
          goto end;
  
      if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl, &clientssl,
                                               NULL, NULL)))
          goto end;
  
      if (!TEST_true(set_ssl_groups(serverssl, clientssl, clientmulti, isecdhe,
                                    idx)))
          goto end;
  
      if (!TEST_true(create_ssl_connection(serverssl, clientssl, SSL_ERROR_NONE)))
          goto end;
  
      /* Initial handshake; always the configured one */
      if (!TEST_uint_eq(SSL_get_negotiated_group(clientssl), expectednid)
              || !TEST_uint_eq(SSL_get_negotiated_group(serverssl), expectednid))
          goto end;
  
      if (!TEST_ptr((origsess = SSL_get1_session(clientssl))))
          goto end;
  
      SSL_shutdown(clientssl);
      SSL_shutdown(serverssl);
      SSL_free(serverssl);
      SSL_free(clientssl);
      serverssl = clientssl = NULL;
  
      /* First resumption attempt; use the same config as initial handshake */
      if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl, &clientssl,
                                               NULL, NULL))
              || !TEST_true(SSL_set_session(clientssl, origsess))
              || !TEST_true(set_ssl_groups(serverssl, clientssl, clientmulti,
                                           isecdhe, idx)))
          goto end;
  
      if (!TEST_true(create_ssl_connection(serverssl, clientssl, SSL_ERROR_NONE))
              || !TEST_true(SSL_session_reused(clientssl)))
          goto end;
  
      /* Still had better agree, since nothing changed... */
      if (!TEST_uint_eq(SSL_get_negotiated_group(clientssl), expectednid)
              || !TEST_uint_eq(SSL_get_negotiated_group(serverssl), expectednid))
          goto end;
  
      SSL_shutdown(clientssl);
      SSL_shutdown(serverssl);
      SSL_free(serverssl);
      SSL_free(clientssl);
      serverssl = clientssl = NULL;
  
      /*-
       * Second resumption attempt
       * The party that picks one group changes it, which we effectuate by
       * changing 'idx' and updating what we expect.
       */
      if (idx == 0)
          idx = 1;
      else
          idx--;
      if (istls13) {
          if (isecdhe)
              expectednid = ecdhe_kexch_groups[idx];
          else
              expectednid = ffdhe_kexch_groups[idx];
          /* Verify that we are changing what we expect. */
          if (!TEST_int_ne(expectednid, kexch_alg))
              goto end;
      } else {
          /* TLS 1.2 only supports named groups for ECDHE. */
          if (isecdhe)
              expectednid = kexch_alg;
          else
              expectednid = 0;
      }
      if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl, &clientssl,
                                               NULL, NULL))
              || !TEST_true(SSL_set_session(clientssl, origsess))
              || !TEST_true(set_ssl_groups(serverssl, clientssl, clientmulti,
                                           isecdhe, idx)))
          goto end;
  
      if (!TEST_true(create_ssl_connection(serverssl, clientssl, SSL_ERROR_NONE))
              || !TEST_true(SSL_session_reused(clientssl)))
          goto end;
  
      /* Check that we get what we expected */
      if (!TEST_uint_eq(SSL_get_negotiated_group(clientssl), expectednid)
              || !TEST_uint_eq(SSL_get_negotiated_group(serverssl), expectednid))
          goto end;
  
      testresult = 1;
   end:
      SSL_free(serverssl);
      SSL_free(clientssl);
      SSL_CTX_free(sctx);
      SSL_CTX_free(cctx);
      SSL_SESSION_free(origsess);
      return testresult;
  }
  # endif /* !defined(OPENSSL_NO_EC) && !defined(OPENSSL_NO_DH) */
  
  /*
   * Test TLSv1.3 Cipher Suite
   * Test 0 = Set TLS1.3 cipher on context
   * Test 1 = Set TLS1.3 cipher on SSL
   * Test 2 = Set TLS1.3 and TLS1.2 cipher on context
   * Test 3 = Set TLS1.3 and TLS1.2 cipher on SSL
   */
  static int test_tls13_ciphersuite(int idx)
  {
      SSL_CTX *sctx = NULL, *cctx = NULL;
      SSL *serverssl = NULL, *clientssl = NULL;
      static const struct {
          const char *ciphername;
          int fipscapable;
          int low_security;
      } t13_ciphers[] = {
          { TLS1_3_RFC_AES_128_GCM_SHA256, 1, 0 },
          { TLS1_3_RFC_AES_256_GCM_SHA384, 1, 0 },
          { TLS1_3_RFC_AES_128_CCM_SHA256, 1, 0 },
  # if !defined(OPENSSL_NO_CHACHA) && !defined(OPENSSL_NO_POLY1305)
          { TLS1_3_RFC_CHACHA20_POLY1305_SHA256, 0, 0 },
          { TLS1_3_RFC_AES_256_GCM_SHA384
            ":" TLS1_3_RFC_CHACHA20_POLY1305_SHA256, 0, 0 },
  # endif
          /* CCM8 ciphers are considered low security due to their short tag */
          { TLS1_3_RFC_AES_128_CCM_8_SHA256
            ":" TLS1_3_RFC_AES_128_CCM_SHA256, 1, 1 }
      };
      const char *t13_cipher = NULL;
      const char *t12_cipher = NULL;
      const char *negotiated_scipher;
      const char *negotiated_ccipher;
      int set_at_ctx = 0;
      int set_at_ssl = 0;
      int testresult = 0;
      int max_ver;
      size_t i;
  
      switch (idx) {
          case 0:
              set_at_ctx = 1;
              break;
          case 1:
              set_at_ssl = 1;
              break;
          case 2:
              set_at_ctx = 1;
              t12_cipher = TLS1_TXT_RSA_WITH_AES_128_SHA256;
              break;
          case 3:
              set_at_ssl = 1;
              t12_cipher = TLS1_TXT_RSA_WITH_AES_128_SHA256;
              break;
      }
  
      for (max_ver = TLS1_2_VERSION; max_ver <= TLS1_3_VERSION; max_ver++) {
  # ifdef OPENSSL_NO_TLS1_2
          if (max_ver == TLS1_2_VERSION)
              continue;
  # endif
          for (i = 0; i < OSSL_NELEM(t13_ciphers); i++) {
              if (is_fips && !t13_ciphers[i].fipscapable)
                  continue;
              t13_cipher = t13_ciphers[i].ciphername;
              if (!TEST_true(create_ssl_ctx_pair(libctx, TLS_server_method(),
                                                 TLS_client_method(),
                                                 TLS1_VERSION, max_ver,
                                                 &sctx, &cctx, cert, privkey)))
                  goto end;
  
              if (t13_ciphers[i].low_security) {
                  SSL_CTX_set_security_level(sctx, 0);
                  SSL_CTX_set_security_level(cctx, 0);
              }
  
              if (set_at_ctx) {
                  if (!TEST_true(SSL_CTX_set_ciphersuites(sctx, t13_cipher))
                      || !TEST_true(SSL_CTX_set_ciphersuites(cctx, t13_cipher)))
                      goto end;
                  if (t12_cipher != NULL) {
                      if (!TEST_true(SSL_CTX_set_cipher_list(sctx, t12_cipher))
                          || !TEST_true(SSL_CTX_set_cipher_list(cctx,
                                                                t12_cipher)))
                          goto end;
                  }
              }
  
              if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl,
                                                &clientssl, NULL, NULL)))
                  goto end;
  
              if (set_at_ssl) {
                  if (!TEST_true(SSL_set_ciphersuites(serverssl, t13_cipher))
                      || !TEST_true(SSL_set_ciphersuites(clientssl, t13_cipher)))
                      goto end;
                  if (t12_cipher != NULL) {
                      if (!TEST_true(SSL_set_cipher_list(serverssl, t12_cipher))
                          || !TEST_true(SSL_set_cipher_list(clientssl,
                                                            t12_cipher)))
                          goto end;
                  }
              }
  
              if (!TEST_true(create_ssl_connection(serverssl, clientssl,
                                                   SSL_ERROR_NONE)))
                  goto end;
  
              negotiated_scipher = SSL_CIPHER_get_name(SSL_get_current_cipher(
                                                                   serverssl));
              negotiated_ccipher = SSL_CIPHER_get_name(SSL_get_current_cipher(
                                                                   clientssl));
              if (!TEST_str_eq(negotiated_scipher, negotiated_ccipher))
                  goto end;
  
              /*
               * TEST_strn_eq is used below because t13_cipher can contain
               * multiple ciphersuites
               */
              if (max_ver == TLS1_3_VERSION
                  && !TEST_strn_eq(t13_cipher, negotiated_scipher,
                                   strlen(negotiated_scipher)))
                  goto end;
  
  # ifndef OPENSSL_NO_TLS1_2
              /* Below validation is not done when t12_cipher is NULL */
              if (max_ver == TLS1_2_VERSION && t12_cipher != NULL
                  && !TEST_str_eq(t12_cipher, negotiated_scipher))
                  goto end;
  # endif
  
              SSL_free(serverssl);
              serverssl = NULL;
              SSL_free(clientssl);
              clientssl = NULL;
              SSL_CTX_free(sctx);
              sctx = NULL;
              SSL_CTX_free(cctx);
              cctx = NULL;
          }
      }
  
      testresult = 1;
   end:
      SSL_free(serverssl);
      SSL_free(clientssl);
      SSL_CTX_free(sctx);
      SSL_CTX_free(cctx);
      return testresult;
  }
  
  /*
   * Test TLSv1.3 PSKs
   * Test 0 = Test new style callbacks
   * Test 1 = Test both new and old style callbacks
   * Test 2 = Test old style callbacks
   * Test 3 = Test old style callbacks with no certificate
   */
  static int test_tls13_psk(int idx)
  {
      SSL_CTX *sctx = NULL, *cctx = NULL;
      SSL *serverssl = NULL, *clientssl = NULL;
      const SSL_CIPHER *cipher = NULL;
      const unsigned char key[] = {
          0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b,
          0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
          0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20, 0x21, 0x22, 0x23,
          0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f
      };
      int testresult = 0;
  
      if (!TEST_true(create_ssl_ctx_pair(libctx, TLS_server_method(),
                                         TLS_client_method(), TLS1_VERSION, 0,
                                         &sctx, &cctx, idx == 3 ? NULL : cert,
                                         idx == 3 ? NULL : privkey)))
          goto end;
  
      if (idx != 3) {
          /*
           * We use a ciphersuite with SHA256 to ease testing old style PSK
           * callbacks which will always default to SHA256. This should not be
           * necessary if we have no cert/priv key. In that case the server should
           * prefer SHA256 automatically.
           */
          if (!TEST_true(SSL_CTX_set_ciphersuites(cctx,
                                                  "TLS_AES_128_GCM_SHA256")))
              goto end;
      } else {
          /*
           * As noted above the server should prefer SHA256 automatically. However
           * we are careful not to offer TLS_CHACHA20_POLY1305_SHA256 so this same
           * code works even if we are testing with only the FIPS provider loaded.
           */
          if (!TEST_true(SSL_CTX_set_ciphersuites(cctx,
                                                  "TLS_AES_256_GCM_SHA384:"
                                                  "TLS_AES_128_GCM_SHA256")))
              goto end;
      }
  
      /*
       * Test 0: New style callbacks only
       * Test 1: New and old style callbacks (only the new ones should be used)
       * Test 2: Old style callbacks only
       */
      if (idx == 0 || idx == 1) {
          SSL_CTX_set_psk_use_session_callback(cctx, use_session_cb);
          SSL_CTX_set_psk_find_session_callback(sctx, find_session_cb);
      }
  #ifndef OPENSSL_NO_PSK
      if (idx >= 1) {
          SSL_CTX_set_psk_client_callback(cctx, psk_client_cb);
          SSL_CTX_set_psk_server_callback(sctx, psk_server_cb);
      }
  #endif
      srvid = pskid;
      use_session_cb_cnt = 0;
      find_session_cb_cnt = 0;
      psk_client_cb_cnt = 0;
      psk_server_cb_cnt = 0;
  
      if (idx != 3) {
          /*
           * Check we can create a connection if callback decides not to send a
           * PSK
           */
          if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl, &clientssl,
                                                   NULL, NULL))
                  || !TEST_true(create_ssl_connection(serverssl, clientssl,
                                                      SSL_ERROR_NONE))
                  || !TEST_false(SSL_session_reused(clientssl))
                  || !TEST_false(SSL_session_reused(serverssl)))
              goto end;
  
          if (idx == 0 || idx == 1) {
              if (!TEST_true(use_session_cb_cnt == 1)
                      || !TEST_true(find_session_cb_cnt == 0)
                         /*
                          * If no old style callback then below should be 0
                          * otherwise 1
                          */
                      || !TEST_true(psk_client_cb_cnt == idx)
                      || !TEST_true(psk_server_cb_cnt == 0))
                  goto end;
          } else {
              if (!TEST_true(use_session_cb_cnt == 0)
                      || !TEST_true(find_session_cb_cnt == 0)
                      || !TEST_true(psk_client_cb_cnt == 1)
                      || !TEST_true(psk_server_cb_cnt == 0))
                  goto end;
          }
  
          shutdown_ssl_connection(serverssl, clientssl);
          serverssl = clientssl = NULL;
          use_session_cb_cnt = psk_client_cb_cnt = 0;
      }
  
      if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl, &clientssl,
                                               NULL, NULL)))
          goto end;
  
      /* Create the PSK */
      cipher = SSL_CIPHER_find(clientssl, TLS13_AES_128_GCM_SHA256_BYTES);
      clientpsk = SSL_SESSION_new();
      if (!TEST_ptr(clientpsk)
              || !TEST_ptr(cipher)
              || !TEST_true(SSL_SESSION_set1_master_key(clientpsk, key,
                                                        sizeof(key)))
              || !TEST_true(SSL_SESSION_set_cipher(clientpsk, cipher))
              || !TEST_true(SSL_SESSION_set_protocol_version(clientpsk,
                                                             TLS1_3_VERSION))
              || !TEST_true(SSL_SESSION_up_ref(clientpsk)))
          goto end;
      serverpsk = clientpsk;
  
      /* Check we can create a connection and the PSK is used */
      if (!TEST_true(create_ssl_connection(serverssl, clientssl, SSL_ERROR_NONE))
              || !TEST_true(SSL_session_reused(clientssl))
              || !TEST_true(SSL_session_reused(serverssl)))
          goto end;
  
      if (idx == 0 || idx == 1) {
          if (!TEST_true(use_session_cb_cnt == 1)
                  || !TEST_true(find_session_cb_cnt == 1)
                  || !TEST_true(psk_client_cb_cnt == 0)
                  || !TEST_true(psk_server_cb_cnt == 0))
              goto end;
      } else {
          if (!TEST_true(use_session_cb_cnt == 0)
                  || !TEST_true(find_session_cb_cnt == 0)
                  || !TEST_true(psk_client_cb_cnt == 1)
                  || !TEST_true(psk_server_cb_cnt == 1))
              goto end;
      }
  
      shutdown_ssl_connection(serverssl, clientssl);
      serverssl = clientssl = NULL;
      use_session_cb_cnt = find_session_cb_cnt = 0;
      psk_client_cb_cnt = psk_server_cb_cnt = 0;
  
      if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl, &clientssl,
                                               NULL, NULL)))
          goto end;
  
      /* Force an HRR */
  #if defined(OPENSSL_NO_EC)
      if (!TEST_true(SSL_set1_groups_list(serverssl, "ffdhe3072")))
          goto end;
  #else
      if (!TEST_true(SSL_set1_groups_list(serverssl, "P-256")))
          goto end;
  #endif
  
      /*
       * Check we can create a connection, the PSK is used and the callbacks are
       * called twice.
       */
      if (!TEST_true(create_ssl_connection(serverssl, clientssl, SSL_ERROR_NONE))
              || !TEST_true(SSL_session_reused(clientssl))
              || !TEST_true(SSL_session_reused(serverssl)))
          goto end;
  
      if (idx == 0 || idx == 1) {
          if (!TEST_true(use_session_cb_cnt == 2)
                  || !TEST_true(find_session_cb_cnt == 2)
                  || !TEST_true(psk_client_cb_cnt == 0)
                  || !TEST_true(psk_server_cb_cnt == 0))
              goto end;
      } else {
          if (!TEST_true(use_session_cb_cnt == 0)
                  || !TEST_true(find_session_cb_cnt == 0)
                  || !TEST_true(psk_client_cb_cnt == 2)
                  || !TEST_true(psk_server_cb_cnt == 2))
              goto end;
      }
  
      shutdown_ssl_connection(serverssl, clientssl);
      serverssl = clientssl = NULL;
      use_session_cb_cnt = find_session_cb_cnt = 0;
      psk_client_cb_cnt = psk_server_cb_cnt = 0;
  
      if (idx != 3) {
          /*
           * Check that if the server rejects the PSK we can still connect, but with
           * a full handshake
           */
          srvid = "Dummy Identity";
          if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl, &clientssl,
                                                   NULL, NULL))
                  || !TEST_true(create_ssl_connection(serverssl, clientssl,
                                                      SSL_ERROR_NONE))
                  || !TEST_false(SSL_session_reused(clientssl))
                  || !TEST_false(SSL_session_reused(serverssl)))
              goto end;
  
          if (idx == 0 || idx == 1) {
              if (!TEST_true(use_session_cb_cnt == 1)
                      || !TEST_true(find_session_cb_cnt == 1)
                      || !TEST_true(psk_client_cb_cnt == 0)
                         /*
                          * If no old style callback then below should be 0
                          * otherwise 1
                          */
                      || !TEST_true(psk_server_cb_cnt == idx))
                  goto end;
          } else {
              if (!TEST_true(use_session_cb_cnt == 0)
                      || !TEST_true(find_session_cb_cnt == 0)
                      || !TEST_true(psk_client_cb_cnt == 1)
                      || !TEST_true(psk_server_cb_cnt == 1))
                  goto end;
          }
  
          shutdown_ssl_connection(serverssl, clientssl);
          serverssl = clientssl = NULL;
      }
      testresult = 1;
  
   end:
      SSL_SESSION_free(clientpsk);
      SSL_SESSION_free(serverpsk);
      clientpsk = serverpsk = NULL;
      SSL_free(serverssl);
      SSL_free(clientssl);
      SSL_CTX_free(sctx);
      SSL_CTX_free(cctx);
      return testresult;
  }
  
  static unsigned char cookie_magic_value[] = "cookie magic";
  
  static int generate_cookie_callback(SSL *ssl, unsigned char *cookie,
                                      unsigned int *cookie_len)
  {
      /*
       * Not suitable as a real cookie generation function but good enough for
       * testing!
       */
      memcpy(cookie, cookie_magic_value, sizeof(cookie_magic_value) - 1);
      *cookie_len = sizeof(cookie_magic_value) - 1;
  
      return 1;
  }
  
  static int verify_cookie_callback(SSL *ssl, const unsigned char *cookie,
                                    unsigned int cookie_len)
  {
      if (cookie_len == sizeof(cookie_magic_value) - 1
          && memcmp(cookie, cookie_magic_value, cookie_len) == 0)
          return 1;
  
      return 0;
  }
  
  static int generate_stateless_cookie_callback(SSL *ssl, unsigned char *cookie,
                                          size_t *cookie_len)
  {
      unsigned int temp;
      int res = generate_cookie_callback(ssl, cookie, &temp);
      *cookie_len = temp;
      return res;
  }
  
  static int verify_stateless_cookie_callback(SSL *ssl, const unsigned char *cookie,
                                        size_t cookie_len)
  {
      return verify_cookie_callback(ssl, cookie, cookie_len);
  }
  
  static int test_stateless(void)
  {
      SSL_CTX *sctx = NULL, *cctx = NULL;
      SSL *serverssl = NULL, *clientssl = NULL;
      int testresult = 0;
  
      if (!TEST_true(create_ssl_ctx_pair(libctx, TLS_server_method(),
                                         TLS_client_method(), TLS1_VERSION, 0,
                                         &sctx, &cctx, cert, privkey)))
          goto end;
  
      /* The arrival of CCS messages can confuse the test */
      SSL_CTX_clear_options(cctx, SSL_OP_ENABLE_MIDDLEBOX_COMPAT);
  
      if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl, &clientssl,
                                        NULL, NULL))
                 /* Send the first ClientHello */
              || !TEST_false(create_ssl_connection(serverssl, clientssl,
                                                   SSL_ERROR_WANT_READ))
                 /*
                  * This should fail with a -1 return because we have no callbacks
                  * set up
                  */
              || !TEST_int_eq(SSL_stateless(serverssl), -1))
          goto end;
  
      /* Fatal error so abandon the connection from this client */
      SSL_free(clientssl);
      clientssl = NULL;
  
      /* Set up the cookie generation and verification callbacks */
      SSL_CTX_set_stateless_cookie_generate_cb(sctx, generate_stateless_cookie_callback);
      SSL_CTX_set_stateless_cookie_verify_cb(sctx, verify_stateless_cookie_callback);
  
      /*
       * Create a new connection from the client (we can reuse the server SSL
       * object).
       */
      if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl, &clientssl,
                                               NULL, NULL))
                 /* Send the first ClientHello */
              || !TEST_false(create_ssl_connection(serverssl, clientssl,
                                                  SSL_ERROR_WANT_READ))
                 /* This should fail because there is no cookie */
              || !TEST_int_eq(SSL_stateless(serverssl), 0))
          goto end;
  
      /* Abandon the connection from this client */
      SSL_free(clientssl);
      clientssl = NULL;
  
      /*
       * Now create a connection from a new client but with the same server SSL
       * object
       */
      if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl, &clientssl,
                                               NULL, NULL))
                 /* Send the first ClientHello */
              || !TEST_false(create_ssl_connection(serverssl, clientssl,
                                                  SSL_ERROR_WANT_READ))
                 /* This should fail because there is no cookie */
              || !TEST_int_eq(SSL_stateless(serverssl), 0)
                 /* Send the second ClientHello */
              || !TEST_false(create_ssl_connection(serverssl, clientssl,
                                                  SSL_ERROR_WANT_READ))
                 /* This should succeed because a cookie is now present */
              || !TEST_int_eq(SSL_stateless(serverssl), 1)
                 /* Complete the connection */
              || !TEST_true(create_ssl_connection(serverssl, clientssl,
                                                  SSL_ERROR_NONE)))
          goto end;
  
      shutdown_ssl_connection(serverssl, clientssl);
      serverssl = clientssl = NULL;
      testresult = 1;
  
   end:
      SSL_free(serverssl);
      SSL_free(clientssl);
      SSL_CTX_free(sctx);
      SSL_CTX_free(cctx);
      return testresult;
  
  }
  #endif /* OSSL_NO_USABLE_TLS1_3 */
  
  static int clntaddoldcb = 0;
  static int clntparseoldcb = 0;
  static int srvaddoldcb = 0;
  static int srvparseoldcb = 0;
  static int clntaddnewcb = 0;
  static int clntparsenewcb = 0;
  static int srvaddnewcb = 0;
  static int srvparsenewcb = 0;
  static int snicb = 0;
  
  #define TEST_EXT_TYPE1  0xff00
  
  static int old_add_cb(SSL *s, unsigned int ext_type, const unsigned char **out,
                        size_t *outlen, int *al, void *add_arg)
  {
      int *server = (int *)add_arg;
      unsigned char *data;
  
      if (SSL_is_server(s))
          srvaddoldcb++;
      else
          clntaddoldcb++;
  
      if (*server != SSL_is_server(s)
              || (data = OPENSSL_malloc(sizeof(*data))) == NULL)
          return -1;
  
      *data = 1;
      *out = data;
      *outlen = sizeof(char);
      return 1;
  }
  
  static void old_free_cb(SSL *s, unsigned int ext_type, const unsigned char *out,
                          void *add_arg)
  {
      OPENSSL_free((unsigned char *)out);
  }
  
  static int old_parse_cb(SSL *s, unsigned int ext_type, const unsigned char *in,
                          size_t inlen, int *al, void *parse_arg)
  {
      int *server = (int *)parse_arg;
  
      if (SSL_is_server(s))
          srvparseoldcb++;
      else
          clntparseoldcb++;
  
      if (*server != SSL_is_server(s)
              || inlen != sizeof(char)
              || *in != 1)
          return -1;
  
      return 1;
  }
  
  static int new_add_cb(SSL *s, unsigned int ext_type, unsigned int context,
                        const unsigned char **out, size_t *outlen, X509 *x,
                        size_t chainidx, int *al, void *add_arg)
  {
      int *server = (int *)add_arg;
      unsigned char *data;
  
      if (SSL_is_server(s))
          srvaddnewcb++;
      else
          clntaddnewcb++;
  
      if (*server != SSL_is_server(s)
              || (data = OPENSSL_malloc(sizeof(*data))) == NULL)
          return -1;
  
      *data = 1;
      *out = data;
      *outlen = sizeof(*data);
      return 1;
  }
  
  static void new_free_cb(SSL *s, unsigned int ext_type, unsigned int context,
                          const unsigned char *out, void *add_arg)
  {
      OPENSSL_free((unsigned char *)out);
  }
  
  static int new_parse_cb(SSL *s, unsigned int ext_type, unsigned int context,
                          const unsigned char *in, size_t inlen, X509 *x,
                          size_t chainidx, int *al, void *parse_arg)
  {
      int *server = (int *)parse_arg;
  
      if (SSL_is_server(s))
          srvparsenewcb++;
      else
          clntparsenewcb++;
  
      if (*server != SSL_is_server(s)
              || inlen != sizeof(char) || *in != 1)
          return -1;
  
      return 1;
  }
  
  static int sni_cb(SSL *s, int *al, void *arg)
  {
      SSL_CTX *ctx = (SSL_CTX *)arg;
  
      if (SSL_set_SSL_CTX(s, ctx) == NULL) {
          *al = SSL_AD_INTERNAL_ERROR;
          return SSL_TLSEXT_ERR_ALERT_FATAL;
      }
      snicb++;
      return SSL_TLSEXT_ERR_OK;
  }
  
  static int verify_cb(int preverify_ok, X509_STORE_CTX *x509_ctx)
  {
      return 1;
  }
  
  /*
   * Custom call back tests.
   * Test 0: Old style callbacks in TLSv1.2
   * Test 1: New style callbacks in TLSv1.2
   * Test 2: New style callbacks in TLSv1.2 with SNI
   * Test 3: New style callbacks in TLSv1.3. Extensions in CH and EE
   * Test 4: New style callbacks in TLSv1.3. Extensions in CH, SH, EE, Cert + NST
   * Test 5: New style callbacks in TLSv1.3. Extensions in CR + Client Cert
   */
  static int test_custom_exts(int tst)
  {
      SSL_CTX *cctx = NULL, *sctx = NULL, *sctx2 = NULL;
      SSL *clientssl = NULL, *serverssl = NULL;
      int testresult = 0;
      static int server = 1;
      static int client = 0;
      SSL_SESSION *sess = NULL;
      unsigned int context;
  
  #if defined(OPENSSL_NO_TLS1_2) && !defined(OSSL_NO_USABLE_TLS1_3)
      /* Skip tests for TLSv1.2 and below in this case */
      if (tst < 3)
          return 1;
  #endif
  
      /* Reset callback counters */
      clntaddoldcb = clntparseoldcb = srvaddoldcb = srvparseoldcb = 0;
      clntaddnewcb = clntparsenewcb = srvaddnewcb = srvparsenewcb = 0;
      snicb = 0;
  
      if (!TEST_true(create_ssl_ctx_pair(libctx, TLS_server_method(),
                                         TLS_client_method(), TLS1_VERSION, 0,
                                         &sctx, &cctx, cert, privkey)))
          goto end;
  
      if (tst == 2
              && !TEST_true(create_ssl_ctx_pair(libctx, TLS_server_method(), NULL,
                                                TLS1_VERSION, 0,
                                                &sctx2, NULL, cert, privkey)))
          goto end;
  
  
      if (tst < 3) {
          SSL_CTX_set_options(cctx, SSL_OP_NO_TLSv1_3);
          SSL_CTX_set_options(sctx, SSL_OP_NO_TLSv1_3);
          if (sctx2 != NULL)
              SSL_CTX_set_options(sctx2, SSL_OP_NO_TLSv1_3);
      }
  
      if (tst == 5) {
          context = SSL_EXT_TLS1_3_CERTIFICATE_REQUEST
                    | SSL_EXT_TLS1_3_CERTIFICATE;
          SSL_CTX_set_verify(sctx,
                             SSL_VERIFY_PEER | SSL_VERIFY_FAIL_IF_NO_PEER_CERT,
                             verify_cb);
          if (!TEST_int_eq(SSL_CTX_use_certificate_file(cctx, cert,
                                                        SSL_FILETYPE_PEM), 1)
                  || !TEST_int_eq(SSL_CTX_use_PrivateKey_file(cctx, privkey,
                                                              SSL_FILETYPE_PEM), 1)
                  || !TEST_int_eq(SSL_CTX_check_private_key(cctx), 1))
              goto end;
      } else if (tst == 4) {
          context = SSL_EXT_CLIENT_HELLO
                    | SSL_EXT_TLS1_2_SERVER_HELLO
                    | SSL_EXT_TLS1_3_SERVER_HELLO
                    | SSL_EXT_TLS1_3_ENCRYPTED_EXTENSIONS
                    | SSL_EXT_TLS1_3_CERTIFICATE
                    | SSL_EXT_TLS1_3_NEW_SESSION_TICKET;
      } else {
          context = SSL_EXT_CLIENT_HELLO
                    | SSL_EXT_TLS1_2_SERVER_HELLO
                    | SSL_EXT_TLS1_3_ENCRYPTED_EXTENSIONS;
      }
  
      /* Create a client side custom extension */
      if (tst == 0) {
          if (!TEST_true(SSL_CTX_add_client_custom_ext(cctx, TEST_EXT_TYPE1,
                                                       old_add_cb, old_free_cb,
                                                       &client, old_parse_cb,
                                                       &client)))
              goto end;
      } else {
          if (!TEST_true(SSL_CTX_add_custom_ext(cctx, TEST_EXT_TYPE1, context,
                                                new_add_cb, new_free_cb,
                                                &client, new_parse_cb, &client)))
              goto end;
      }
  
      /* Should not be able to add duplicates */
      if (!TEST_false(SSL_CTX_add_client_custom_ext(cctx, TEST_EXT_TYPE1,
                                                    old_add_cb, old_free_cb,
                                                    &client, old_parse_cb,
                                                    &client))
              || !TEST_false(SSL_CTX_add_custom_ext(cctx, TEST_EXT_TYPE1,
                                                    context, new_add_cb,
                                                    new_free_cb, &client,
                                                    new_parse_cb, &client)))
          goto end;
  
      /* Create a server side custom extension */
      if (tst == 0) {
          if (!TEST_true(SSL_CTX_add_server_custom_ext(sctx, TEST_EXT_TYPE1,
                                                       old_add_cb, old_free_cb,
                                                       &server, old_parse_cb,
                                                       &server)))
              goto end;
      } else {
          if (!TEST_true(SSL_CTX_add_custom_ext(sctx, TEST_EXT_TYPE1, context,
                                                new_add_cb, new_free_cb,
                                                &server, new_parse_cb, &server)))
              goto end;
          if (sctx2 != NULL
                  && !TEST_true(SSL_CTX_add_custom_ext(sctx2, TEST_EXT_TYPE1,
                                                       context, new_add_cb,
                                                       new_free_cb, &server,
                                                       new_parse_cb, &server)))
              goto end;
      }
  
      /* Should not be able to add duplicates */
      if (!TEST_false(SSL_CTX_add_server_custom_ext(sctx, TEST_EXT_TYPE1,
                                                    old_add_cb, old_free_cb,
                                                    &server, old_parse_cb,
                                                    &server))
              || !TEST_false(SSL_CTX_add_custom_ext(sctx, TEST_EXT_TYPE1,
                                                    context, new_add_cb,
                                                    new_free_cb, &server,
                                                    new_parse_cb, &server)))
          goto end;
  
      if (tst == 2) {
          /* Set up SNI */
          if (!TEST_true(SSL_CTX_set_tlsext_servername_callback(sctx, sni_cb))
                  || !TEST_true(SSL_CTX_set_tlsext_servername_arg(sctx, sctx2)))
              goto end;
      }
  
      if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl,
                                        &clientssl, NULL, NULL))
              || !TEST_true(create_ssl_connection(serverssl, clientssl,
                                                  SSL_ERROR_NONE)))
          goto end;
  
      if (tst == 0) {
          if (clntaddoldcb != 1
                  || clntparseoldcb != 1
                  || srvaddoldcb != 1
                  || srvparseoldcb != 1)
              goto end;
      } else if (tst == 1 || tst == 2 || tst == 3) {
          if (clntaddnewcb != 1
                  || clntparsenewcb != 1
                  || srvaddnewcb != 1
                  || srvparsenewcb != 1
                  || (tst != 2 && snicb != 0)
                  || (tst == 2 && snicb != 1))
              goto end;
      } else if (tst == 5) {
          if (clntaddnewcb != 1
                  || clntparsenewcb != 1
                  || srvaddnewcb != 1
                  || srvparsenewcb != 1)
              goto end;
      } else {
          /* In this case there 2 NewSessionTicket messages created */
          if (clntaddnewcb != 1
                  || clntparsenewcb != 5
                  || srvaddnewcb != 5
                  || srvparsenewcb != 1)
              goto end;
      }
  
      sess = SSL_get1_session(clientssl);
      SSL_shutdown(clientssl);
      SSL_shutdown(serverssl);
      SSL_free(serverssl);
      SSL_free(clientssl);
      serverssl = clientssl = NULL;
  
      if (tst == 3 || tst == 5) {
          /* We don't bother with the resumption aspects for these tests */
          testresult = 1;
          goto end;
      }
  
      if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl, &clientssl,
                                        NULL, NULL))
              || !TEST_true(SSL_set_session(clientssl, sess))
              || !TEST_true(create_ssl_connection(serverssl, clientssl,
                                                 SSL_ERROR_NONE)))
          goto end;
  
      /*
       * For a resumed session we expect to add the ClientHello extension. For the
       * old style callbacks we ignore it on the server side because they set
       * SSL_EXT_IGNORE_ON_RESUMPTION. The new style callbacks do not ignore
       * them.
       */
      if (tst == 0) {
          if (clntaddoldcb != 2
                  || clntparseoldcb != 1
                  || srvaddoldcb != 1
                  || srvparseoldcb != 1)
              goto end;
      } else if (tst == 1 || tst == 2 || tst == 3) {
          if (clntaddnewcb != 2
                  || clntparsenewcb != 2
                  || srvaddnewcb != 2
                  || srvparsenewcb != 2)
              goto end;
      } else {
          /*
           * No Certificate message extensions in the resumption handshake,
           * 2 NewSessionTickets in the initial handshake, 1 in the resumption
           */
          if (clntaddnewcb != 2
                  || clntparsenewcb != 8
                  || srvaddnewcb != 8
                  || srvparsenewcb != 2)
              goto end;
      }
  
      testresult = 1;
  
  end:
      SSL_SESSION_free(sess);
      SSL_free(serverssl);
      SSL_free(clientssl);
      SSL_CTX_free(sctx2);
      SSL_CTX_free(sctx);
      SSL_CTX_free(cctx);
      return testresult;
  }
  
  /*
   * Test loading of serverinfo data in various formats. test_sslmessages actually
   * tests to make sure the extensions appear in the handshake
   */
  static int test_serverinfo(int tst)
  {
      unsigned int version;
      unsigned char *sibuf;
      size_t sibuflen;
      int ret, expected, testresult = 0;
      SSL_CTX *ctx;
  
      ctx = SSL_CTX_new_ex(libctx, NULL, TLS_method());
      if (!TEST_ptr(ctx))
          goto end;
  
      if ((tst & 0x01) == 0x01)
          version = SSL_SERVERINFOV2;
      else
          version = SSL_SERVERINFOV1;
  
      if ((tst & 0x02) == 0x02) {
          sibuf = serverinfov2;
          sibuflen = sizeof(serverinfov2);
          expected = (version == SSL_SERVERINFOV2);
      } else {
          sibuf = serverinfov1;
          sibuflen = sizeof(serverinfov1);
          expected = (version == SSL_SERVERINFOV1);
      }
  
      if ((tst & 0x04) == 0x04) {
          ret = SSL_CTX_use_serverinfo_ex(ctx, version, sibuf, sibuflen);
      } else {
          ret = SSL_CTX_use_serverinfo(ctx, sibuf, sibuflen);
  
          /*
           * The version variable is irrelevant in this case - it's what is in the
           * buffer that matters
           */
          if ((tst & 0x02) == 0x02)
              expected = 0;
          else
              expected = 1;
      }
  
      if (!TEST_true(ret == expected))
          goto end;
  
      testresult = 1;
  
   end:
      SSL_CTX_free(ctx);
  
      return testresult;
  }
  
  /*
   * Test that SSL_export_keying_material() produces expected results. There are
   * no test vectors so all we do is test that both sides of the communication
   * produce the same results for different protocol versions.
   */
  #define SMALL_LABEL_LEN 10
  #define LONG_LABEL_LEN  249
  static int test_export_key_mat(int tst)
  {
      int testresult = 0;
      SSL_CTX *cctx = NULL, *sctx = NULL, *sctx2 = NULL;
      SSL *clientssl = NULL, *serverssl = NULL;
      const char label[LONG_LABEL_LEN + 1] = "test label";
      const unsigned char context[] = "context";
      const unsigned char *emptycontext = NULL;
      unsigned char ckeymat1[80], ckeymat2[80], ckeymat3[80];
      unsigned char skeymat1[80], skeymat2[80], skeymat3[80];
      size_t labellen;
      const int protocols[] = {
          TLS1_VERSION,
          TLS1_1_VERSION,
          TLS1_2_VERSION,
          TLS1_3_VERSION,
          TLS1_3_VERSION,
          TLS1_3_VERSION
      };
  
  #ifdef OPENSSL_NO_TLS1
      if (tst == 0)
          return 1;
  #endif
  #ifdef OPENSSL_NO_TLS1_1
      if (tst == 1)
          return 1;
  #endif
      if (is_fips && (tst == 0 || tst == 1))
          return 1;
  #ifdef OPENSSL_NO_TLS1_2
      if (tst == 2)
          return 1;
  #endif
  #ifdef OSSL_NO_USABLE_TLS1_3
      if (tst >= 3)
          return 1;
  #endif
      if (!TEST_true(create_ssl_ctx_pair(libctx, TLS_server_method(),
                                         TLS_client_method(), TLS1_VERSION, 0,
                                         &sctx, &cctx, cert, privkey)))
          goto end;
  
      OPENSSL_assert(tst >= 0 && (size_t)tst < OSSL_NELEM(protocols));
      SSL_CTX_set_max_proto_version(cctx, protocols[tst]);
      SSL_CTX_set_min_proto_version(cctx, protocols[tst]);
      if ((protocols[tst] < TLS1_2_VERSION) &&
          (!SSL_CTX_set_cipher_list(cctx, "DEFAULT:@SECLEVEL=0")
          || !SSL_CTX_set_cipher_list(sctx, "DEFAULT:@SECLEVEL=0")))
          goto end;
  
      if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl, &clientssl, NULL,
                                        NULL)))
          goto end;
  
      /*
       * Premature call of SSL_export_keying_material should just fail.
       */
      if (!TEST_int_le(SSL_export_keying_material(clientssl, ckeymat1,
                                                  sizeof(ckeymat1), label,
                                                  SMALL_LABEL_LEN + 1, context,
                                                  sizeof(context) - 1, 1), 0))
          goto end;
  
      if (!TEST_true(create_ssl_connection(serverssl, clientssl,
                                           SSL_ERROR_NONE)))
          goto end;
  
      if (tst == 5) {
          /*
           * TLSv1.3 imposes a maximum label len of 249 bytes. Check we fail if we
           * go over that.
           */
          if (!TEST_int_le(SSL_export_keying_material(clientssl, ckeymat1,
                                                      sizeof(ckeymat1), label,
                                                      LONG_LABEL_LEN + 1, context,
                                                      sizeof(context) - 1, 1), 0))
              goto end;
  
          testresult = 1;
          goto end;
      } else if (tst == 4) {
          labellen = LONG_LABEL_LEN;
      } else {
          labellen = SMALL_LABEL_LEN;
      }
  
      if (!TEST_int_eq(SSL_export_keying_material(clientssl, ckeymat1,
                                                  sizeof(ckeymat1), label,
                                                  labellen, context,
                                                  sizeof(context) - 1, 1), 1)
              || !TEST_int_eq(SSL_export_keying_material(clientssl, ckeymat2,
                                                         sizeof(ckeymat2), label,
                                                         labellen,
                                                         emptycontext,
                                                         0, 1), 1)
              || !TEST_int_eq(SSL_export_keying_material(clientssl, ckeymat3,
                                                         sizeof(ckeymat3), label,
                                                         labellen,
                                                         NULL, 0, 0), 1)
              || !TEST_int_eq(SSL_export_keying_material(serverssl, skeymat1,
                                                         sizeof(skeymat1), label,
                                                         labellen,
                                                         context,
                                                         sizeof(context) -1, 1),
                              1)
              || !TEST_int_eq(SSL_export_keying_material(serverssl, skeymat2,
                                                         sizeof(skeymat2), label,
                                                         labellen,
                                                         emptycontext,
                                                         0, 1), 1)
              || !TEST_int_eq(SSL_export_keying_material(serverssl, skeymat3,
                                                         sizeof(skeymat3), label,
                                                         labellen,
                                                         NULL, 0, 0), 1)
                 /*
                  * Check that both sides created the same key material with the
                  * same context.
                  */
              || !TEST_mem_eq(ckeymat1, sizeof(ckeymat1), skeymat1,
                              sizeof(skeymat1))
                 /*
                  * Check that both sides created the same key material with an
                  * empty context.
                  */
              || !TEST_mem_eq(ckeymat2, sizeof(ckeymat2), skeymat2,
                              sizeof(skeymat2))
                 /*
                  * Check that both sides created the same key material without a
                  * context.
                  */
              || !TEST_mem_eq(ckeymat3, sizeof(ckeymat3), skeymat3,
                              sizeof(skeymat3))
                 /* Different contexts should produce different results */
              || !TEST_mem_ne(ckeymat1, sizeof(ckeymat1), ckeymat2,
                              sizeof(ckeymat2)))
          goto end;
  
      /*
       * Check that an empty context and no context produce different results in
       * protocols less than TLSv1.3. In TLSv1.3 they should be the same.
       */
      if ((tst < 3 && !TEST_mem_ne(ckeymat2, sizeof(ckeymat2), ckeymat3,
                                    sizeof(ckeymat3)))
              || (tst >= 3 && !TEST_mem_eq(ckeymat2, sizeof(ckeymat2), ckeymat3,
                                           sizeof(ckeymat3))))
          goto end;
  
      testresult = 1;
  
   end:
      SSL_free(serverssl);
      SSL_free(clientssl);
      SSL_CTX_free(sctx2);
      SSL_CTX_free(sctx);
      SSL_CTX_free(cctx);
  
      return testresult;
  }
  
  #ifndef OSSL_NO_USABLE_TLS1_3
  /*
   * Test that SSL_export_keying_material_early() produces expected
   * results. There are no test vectors so all we do is test that both
   * sides of the communication produce the same results for different
   * protocol versions.
   */
  static int test_export_key_mat_early(int idx)
  {
      static const char label[] = "test label";
      static const unsigned char context[] = "context";
      int testresult = 0;
      SSL_CTX *cctx = NULL, *sctx = NULL;
      SSL *clientssl = NULL, *serverssl = NULL;
      SSL_SESSION *sess = NULL;
      const unsigned char *emptycontext = NULL;
      unsigned char ckeymat1[80], ckeymat2[80];
      unsigned char skeymat1[80], skeymat2[80];
      unsigned char buf[1];
      size_t readbytes, written;
  
      if (!TEST_true(setupearly_data_test(&cctx, &sctx, &clientssl, &serverssl,
                                          &sess, idx)))
          goto end;
  
      /* Here writing 0 length early data is enough. */
      if (!TEST_true(SSL_write_early_data(clientssl, NULL, 0, &written))
              || !TEST_int_eq(SSL_read_early_data(serverssl, buf, sizeof(buf),
                                                  &readbytes),
                              SSL_READ_EARLY_DATA_ERROR)
              || !TEST_int_eq(SSL_get_early_data_status(serverssl),
                              SSL_EARLY_DATA_ACCEPTED))
          goto end;
  
      if (!TEST_int_eq(SSL_export_keying_material_early(
                       clientssl, ckeymat1, sizeof(ckeymat1), label,
                       sizeof(label) - 1, context, sizeof(context) - 1), 1)
              || !TEST_int_eq(SSL_export_keying_material_early(
                              clientssl, ckeymat2, sizeof(ckeymat2), label,
                              sizeof(label) - 1, emptycontext, 0), 1)
              || !TEST_int_eq(SSL_export_keying_material_early(
                              serverssl, skeymat1, sizeof(skeymat1), label,
                              sizeof(label) - 1, context, sizeof(context) - 1), 1)
              || !TEST_int_eq(SSL_export_keying_material_early(
                              serverssl, skeymat2, sizeof(skeymat2), label,
                              sizeof(label) - 1, emptycontext, 0), 1)
                 /*
                  * Check that both sides created the same key material with the
                  * same context.
                  */
              || !TEST_mem_eq(ckeymat1, sizeof(ckeymat1), skeymat1,
                              sizeof(skeymat1))
                 /*
                  * Check that both sides created the same key material with an
                  * empty context.
                  */
              || !TEST_mem_eq(ckeymat2, sizeof(ckeymat2), skeymat2,
                              sizeof(skeymat2))
                 /* Different contexts should produce different results */
              || !TEST_mem_ne(ckeymat1, sizeof(ckeymat1), ckeymat2,
                              sizeof(ckeymat2)))
          goto end;
  
      testresult = 1;
  
   end:
      SSL_SESSION_free(sess);
      SSL_SESSION_free(clientpsk);
      SSL_SESSION_free(serverpsk);
      clientpsk = serverpsk = NULL;
      SSL_free(serverssl);
      SSL_free(clientssl);
      SSL_CTX_free(sctx);
      SSL_CTX_free(cctx);
  
      return testresult;
  }
  
  #define NUM_KEY_UPDATE_MESSAGES 40
  /*
   * Test KeyUpdate.
   */
  static int test_key_update(void)
  {
      SSL_CTX *cctx = NULL, *sctx = NULL;
      SSL *clientssl = NULL, *serverssl = NULL;
      int testresult = 0, i, j;
      char buf[20];
      static char *mess = "A test message";
  
      if (!TEST_true(create_ssl_ctx_pair(libctx, TLS_server_method(),
                                         TLS_client_method(),
                                         TLS1_3_VERSION,
                                         0,
                                         &sctx, &cctx, cert, privkey))
              || !TEST_true(create_ssl_objects(sctx, cctx, &serverssl, &clientssl,
                                               NULL, NULL))
              || !TEST_true(create_ssl_connection(serverssl, clientssl,
                                                  SSL_ERROR_NONE)))
          goto end;
  
      for (j = 0; j < 2; j++) {
          /* Send lots of KeyUpdate messages */
          for (i = 0; i < NUM_KEY_UPDATE_MESSAGES; i++) {
              if (!TEST_true(SSL_key_update(clientssl,
                                            (j == 0)
                                            ? SSL_KEY_UPDATE_NOT_REQUESTED
                                            : SSL_KEY_UPDATE_REQUESTED))
                      || !TEST_true(SSL_do_handshake(clientssl)))
                  goto end;
          }
  
          /* Check that sending and receiving app data is ok */
          if (!TEST_int_eq(SSL_write(clientssl, mess, strlen(mess)), strlen(mess))
                  || !TEST_int_eq(SSL_read(serverssl, buf, sizeof(buf)),
                                           strlen(mess)))
              goto end;
  
          if (!TEST_int_eq(SSL_write(serverssl, mess, strlen(mess)), strlen(mess))
                  || !TEST_int_eq(SSL_read(clientssl, buf, sizeof(buf)),
                                           strlen(mess)))
              goto end;
      }
  
      testresult = 1;
  
   end:
      SSL_free(serverssl);
      SSL_free(clientssl);
      SSL_CTX_free(sctx);
      SSL_CTX_free(cctx);
  
      return testresult;
  }
  
  /*
   * Test we can handle a KeyUpdate (update requested) message while
   * write data is pending in peer.
   * Test 0: Client sends KeyUpdate while Server is writing
   * Test 1: Server sends KeyUpdate while Client is writing
   */
  static int test_key_update_peer_in_write(int tst)
  {
      SSL_CTX *cctx = NULL, *sctx = NULL;
      SSL *clientssl = NULL, *serverssl = NULL;
      int testresult = 0;
      char buf[20];
      static char *mess = "A test message";
      BIO *bretry = BIO_new(bio_s_always_retry());
      BIO *tmp = NULL;
      SSL *peerupdate = NULL, *peerwrite = NULL;
  
      if (!TEST_ptr(bretry)
              || !TEST_true(create_ssl_ctx_pair(libctx, TLS_server_method(),
                                                TLS_client_method(),
                                                TLS1_3_VERSION,
                                                0,
                                                &sctx, &cctx, cert, privkey))
              || !TEST_true(create_ssl_objects(sctx, cctx, &serverssl, &clientssl,
                                               NULL, NULL))
              || !TEST_true(create_ssl_connection(serverssl, clientssl,
                                                  SSL_ERROR_NONE)))
          goto end;
  
      peerupdate = tst == 0 ? clientssl : serverssl;
      peerwrite = tst == 0 ? serverssl : clientssl;
  
      if (!TEST_true(SSL_key_update(peerupdate, SSL_KEY_UPDATE_REQUESTED))
              || !TEST_int_eq(SSL_do_handshake(peerupdate), 1))
          goto end;
  
      /* Swap the writing endpoint's write BIO to force a retry */
      tmp = SSL_get_wbio(peerwrite);
      if (!TEST_ptr(tmp) || !TEST_true(BIO_up_ref(tmp))) {
          tmp = NULL;
          goto end;
      }
      SSL_set0_wbio(peerwrite, bretry);
      bretry = NULL;
  
      /* Write data that we know will fail with SSL_ERROR_WANT_WRITE */
      if (!TEST_int_eq(SSL_write(peerwrite, mess, strlen(mess)), -1)
              || !TEST_int_eq(SSL_get_error(peerwrite, 0), SSL_ERROR_WANT_WRITE))
          goto end;
  
      /* Reinstate the original writing endpoint's write BIO */
      SSL_set0_wbio(peerwrite, tmp);
      tmp = NULL;
  
      /* Now read some data - we will read the key update */
      if (!TEST_int_eq(SSL_read(peerwrite, buf, sizeof(buf)), -1)
              || !TEST_int_eq(SSL_get_error(peerwrite, 0), SSL_ERROR_WANT_READ))
          goto end;
  
      /*
       * Complete the write we started previously and read it from the other
       * endpoint
       */
      if (!TEST_int_eq(SSL_write(peerwrite, mess, strlen(mess)), strlen(mess))
              || !TEST_int_eq(SSL_read(peerupdate, buf, sizeof(buf)), strlen(mess)))
          goto end;
  
      /* Write more data to ensure we send the KeyUpdate message back */
      if (!TEST_int_eq(SSL_write(peerwrite, mess, strlen(mess)), strlen(mess))
              || !TEST_int_eq(SSL_read(peerupdate, buf, sizeof(buf)), strlen(mess)))
          goto end;
  
      testresult = 1;
  
   end:
      SSL_free(serverssl);
      SSL_free(clientssl);
      SSL_CTX_free(sctx);
      SSL_CTX_free(cctx);
      BIO_free(bretry);
      BIO_free(tmp);
  
      return testresult;
  }
  
  /*
   * Test we can handle a KeyUpdate (update requested) message while
   * peer read data is pending after peer accepted keyupdate(the msg header
   * had been read 5 bytes).
   * Test 0: Client sends KeyUpdate while Server is reading
   * Test 1: Server sends KeyUpdate while Client is reading
   */
  static int test_key_update_peer_in_read(int tst)
  {
      SSL_CTX *cctx = NULL, *sctx = NULL;
      SSL *clientssl = NULL, *serverssl = NULL;
      int testresult = 0;
      char prbuf[515], lwbuf[515] = {0};
      static char *mess = "A test message";
      BIO *lbio = NULL, *pbio = NULL;
      SSL *local = NULL, *peer = NULL;
  
      if (!TEST_true(create_ssl_ctx_pair(libctx, TLS_server_method(),
                                                TLS_client_method(),
                                                TLS1_3_VERSION,
                                                0,
                                                &sctx, &cctx, cert, privkey))
              || !TEST_true(create_ssl_objects(sctx, cctx, &serverssl, &clientssl,
                                               NULL, NULL))
              || !TEST_true(create_ssl_connection(serverssl, clientssl,
                                                  SSL_ERROR_NONE)))
          goto end;
  
      local = tst == 0 ? clientssl : serverssl;
      peer = tst == 0 ? serverssl : clientssl;
  
      if (!TEST_int_eq(BIO_new_bio_pair(&lbio, 512, &pbio, 512), 1))
          goto end;
  
      SSL_set_bio(local, lbio, lbio);
      SSL_set_bio(peer, pbio, pbio);
  
      /*
       * we first write keyupdate msg then appdata in local
       * write data in local will fail with SSL_ERROR_WANT_WRITE,because
       * lwbuf app data msg size + key updata msg size > 512(the size of
       * the bio pair buffer)
       */
      if (!TEST_true(SSL_key_update(local, SSL_KEY_UPDATE_REQUESTED))
              || !TEST_int_eq(SSL_write(local, lwbuf, sizeof(lwbuf)), -1)
              || !TEST_int_eq(SSL_get_error(local, -1), SSL_ERROR_WANT_WRITE))
          goto end;
  
      /*
       * first read keyupdate msg in peer in peer
       * then read appdata that we know will fail with SSL_ERROR_WANT_READ
       */
      if (!TEST_int_eq(SSL_read(peer, prbuf, sizeof(prbuf)), -1)
              || !TEST_int_eq(SSL_get_error(peer, -1), SSL_ERROR_WANT_READ))
          goto end;
  
      /* Now write some data in peer - we will write the key update */
      if (!TEST_int_eq(SSL_write(peer, mess, strlen(mess)), strlen(mess)))
          goto end;
  
      /*
       * write data in local previously that we will complete
       * read data in peer previously that we will complete
       */
      if (!TEST_int_eq(SSL_write(local, lwbuf, sizeof(lwbuf)), sizeof(lwbuf))
              || !TEST_int_eq(SSL_read(peer, prbuf, sizeof(prbuf)), sizeof(prbuf)))
          goto end;
  
      /* check that sending and receiving appdata ok */
      if (!TEST_int_eq(SSL_write(local, mess, strlen(mess)), strlen(mess))
              || !TEST_int_eq(SSL_read(peer, prbuf, sizeof(prbuf)), strlen(mess)))
          goto end;
  
      testresult = 1;
  
   end:
      SSL_free(serverssl);
      SSL_free(clientssl);
      SSL_CTX_free(sctx);
      SSL_CTX_free(cctx);
  
      return testresult;
  }
  
  /*
   * Test we can't send a KeyUpdate (update requested) message while
   * local write data is pending.
   * Test 0: Client sends KeyUpdate while Client is writing
   * Test 1: Server sends KeyUpdate while Server is writing
   */
  static int test_key_update_local_in_write(int tst)
  {
      SSL_CTX *cctx = NULL, *sctx = NULL;
      SSL *clientssl = NULL, *serverssl = NULL;
      int testresult = 0;
      char buf[20];
      static char *mess = "A test message";
      BIO *bretry = BIO_new(bio_s_always_retry());
      BIO *tmp = NULL;
      SSL *local = NULL, *peer = NULL;
  
      if (!TEST_ptr(bretry)
              || !TEST_true(create_ssl_ctx_pair(libctx, TLS_server_method(),
                                                TLS_client_method(),
                                                TLS1_3_VERSION,
                                                0,
                                                &sctx, &cctx, cert, privkey))
              || !TEST_true(create_ssl_objects(sctx, cctx, &serverssl, &clientssl,
                                               NULL, NULL))
              || !TEST_true(create_ssl_connection(serverssl, clientssl,
                                                  SSL_ERROR_NONE)))
          goto end;
  
      local = tst == 0 ? clientssl : serverssl;
      peer = tst == 0 ? serverssl : clientssl;
  
      /* Swap the writing endpoint's write BIO to force a retry */
      tmp = SSL_get_wbio(local);
      if (!TEST_ptr(tmp) || !TEST_true(BIO_up_ref(tmp))) {
          tmp = NULL;
          goto end;
      }
      SSL_set0_wbio(local, bretry);
      bretry = NULL;
  
      /* write data in local will fail with SSL_ERROR_WANT_WRITE */
      if (!TEST_int_eq(SSL_write(local, mess, strlen(mess)), -1)
              || !TEST_int_eq(SSL_get_error(local, -1), SSL_ERROR_WANT_WRITE))
          goto end;
  
      /* Reinstate the original writing endpoint's write BIO */
      SSL_set0_wbio(local, tmp);
      tmp = NULL;
  
      /* SSL_key_update will fail, because writing in local*/
      if (!TEST_false(SSL_key_update(local, SSL_KEY_UPDATE_REQUESTED))
          || !TEST_int_eq(ERR_GET_REASON(ERR_peek_error()), SSL_R_BAD_WRITE_RETRY))
      goto end;
  
      ERR_clear_error();
      /* write data in local previously that we will complete */
      if (!TEST_int_eq(SSL_write(local, mess, strlen(mess)), strlen(mess)))
          goto end;
  
      /* SSL_key_update will succeed because there is no pending write data */
      if (!TEST_true(SSL_key_update(local, SSL_KEY_UPDATE_REQUESTED))
          || !TEST_int_eq(SSL_do_handshake(local), 1))
          goto end;
  
      /*
       * we write some appdata in local
       * read data in peer - we will read the keyupdate msg
       */
      if (!TEST_int_eq(SSL_write(local, mess, strlen(mess)), strlen(mess))
          || !TEST_int_eq(SSL_read(peer, buf, sizeof(buf)), strlen(mess)))
          goto end;
  
      /* Write more peer more data to ensure we send the keyupdate message back */
      if (!TEST_int_eq(SSL_write(peer, mess, strlen(mess)), strlen(mess))
              || !TEST_int_eq(SSL_read(local, buf, sizeof(buf)), strlen(mess)))
          goto end;
  
      testresult = 1;
  
   end:
      SSL_free(serverssl);
      SSL_free(clientssl);
      SSL_CTX_free(sctx);
      SSL_CTX_free(cctx);
      BIO_free(bretry);
      BIO_free(tmp);
  
      return testresult;
  }
  
  /*
   * Test we can handle a KeyUpdate (update requested) message while
   * local read data is pending(the msg header had been read 5 bytes).
   * Test 0: Client sends KeyUpdate while Client is reading
   * Test 1: Server sends KeyUpdate while Server is reading
   */
  static int test_key_update_local_in_read(int tst)
  {
      SSL_CTX *cctx = NULL, *sctx = NULL;
      SSL *clientssl = NULL, *serverssl = NULL;
      int testresult = 0;
      char lrbuf[515], pwbuf[515] = {0}, prbuf[20];
      static char *mess = "A test message";
      BIO *lbio = NULL, *pbio = NULL;
      SSL *local = NULL, *peer = NULL;
  
      if (!TEST_true(create_ssl_ctx_pair(libctx, TLS_server_method(),
                                                TLS_client_method(),
                                                TLS1_3_VERSION,
                                                0,
                                                &sctx, &cctx, cert, privkey))
              || !TEST_true(create_ssl_objects(sctx, cctx, &serverssl, &clientssl,
                                               NULL, NULL))
              || !TEST_true(create_ssl_connection(serverssl, clientssl,
                                                  SSL_ERROR_NONE)))
          goto end;
  
      local = tst == 0 ? clientssl : serverssl;
      peer = tst == 0 ? serverssl : clientssl;
  
      if (!TEST_int_eq(BIO_new_bio_pair(&lbio, 512, &pbio, 512), 1))
          goto end;
  
      SSL_set_bio(local, lbio, lbio);
      SSL_set_bio(peer, pbio, pbio);
  
      /* write app data in peer will fail with SSL_ERROR_WANT_WRITE */
      if (!TEST_int_eq(SSL_write(peer, pwbuf, sizeof(pwbuf)), -1)
          || !TEST_int_eq(SSL_get_error(peer, -1), SSL_ERROR_WANT_WRITE))
          goto end;
  
      /* read appdata in local will fail with SSL_ERROR_WANT_READ */
      if (!TEST_int_eq(SSL_read(local, lrbuf, sizeof(lrbuf)), -1)
              || !TEST_int_eq(SSL_get_error(local, -1), SSL_ERROR_WANT_READ))
          goto end;
  
      /* SSL_do_handshake will send keyupdate msg */
      if (!TEST_true(SSL_key_update(local, SSL_KEY_UPDATE_REQUESTED))
              || !TEST_int_eq(SSL_do_handshake(local), 1))
          goto end;
  
      /*
       * write data in peer previously that we will complete
       * read data in local previously that we will complete
       */
      if (!TEST_int_eq(SSL_write(peer, pwbuf, sizeof(pwbuf)), sizeof(pwbuf))
          || !TEST_int_eq(SSL_read(local, lrbuf, sizeof(lrbuf)), sizeof(lrbuf)))
          goto end;
  
      /*
       * write data in local
       * read data in peer - we will read the key update
       */
      if (!TEST_int_eq(SSL_write(local, mess, strlen(mess)), strlen(mess))
          || !TEST_int_eq(SSL_read(peer, prbuf, sizeof(prbuf)), strlen(mess)))
          goto end;
  
    /* Write more peer data to ensure we send the keyupdate message back */
      if (!TEST_int_eq(SSL_write(peer, mess, strlen(mess)), strlen(mess))
              || !TEST_int_eq(SSL_read(local, lrbuf, sizeof(lrbuf)), strlen(mess)))
          goto end;
  
      testresult = 1;
  
   end:
      SSL_free(serverssl);
      SSL_free(clientssl);
      SSL_CTX_free(sctx);
      SSL_CTX_free(cctx);
  
      return testresult;
  }
  #endif /* OSSL_NO_USABLE_TLS1_3 */
  
  static int test_ssl_clear(int idx)
  {
      SSL_CTX *cctx = NULL, *sctx = NULL;
      SSL *clientssl = NULL, *serverssl = NULL;
      int testresult = 0;
  
  #ifdef OPENSSL_NO_TLS1_2
      if (idx == 1)
          return 1;
  #endif
  
      /* Create an initial connection */
      if (!TEST_true(create_ssl_ctx_pair(libctx, TLS_server_method(),
                                         TLS_client_method(), TLS1_VERSION, 0,
                                         &sctx, &cctx, cert, privkey))
              || (idx == 1
                  && !TEST_true(SSL_CTX_set_max_proto_version(cctx,
                                                              TLS1_2_VERSION)))
              || !TEST_true(create_ssl_objects(sctx, cctx, &serverssl,
                                            &clientssl, NULL, NULL))
              || !TEST_true(create_ssl_connection(serverssl, clientssl,
                                                  SSL_ERROR_NONE)))
          goto end;
  
      SSL_shutdown(clientssl);
      SSL_shutdown(serverssl);
      SSL_free(serverssl);
      serverssl = NULL;
  
      /* Clear clientssl - we're going to reuse the object */
      if (!TEST_true(SSL_clear(clientssl)))
          goto end;
  
      if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl, &clientssl,
                                               NULL, NULL))
              || !TEST_true(create_ssl_connection(serverssl, clientssl,
                                                  SSL_ERROR_NONE))
              || !TEST_true(SSL_session_reused(clientssl)))
          goto end;
  
      SSL_shutdown(clientssl);
      SSL_shutdown(serverssl);
  
      testresult = 1;
  
   end:
      SSL_free(serverssl);
      SSL_free(clientssl);
      SSL_CTX_free(sctx);
      SSL_CTX_free(cctx);
  
      return testresult;
  }
  
  /* Parse CH and retrieve any MFL extension value if present */
  static int get_MFL_from_client_hello(BIO *bio, int *mfl_codemfl_code)
  {
      long len;
      unsigned char *data;
      PACKET pkt, pkt2, pkt3;
      unsigned int MFL_code = 0, type = 0;
  
      if (!TEST_uint_gt(len = BIO_get_mem_data(bio, (char **) &data), 0))
          goto end;
  
      memset(&pkt, 0, sizeof(pkt));
      memset(&pkt2, 0, sizeof(pkt2));
      memset(&pkt3, 0, sizeof(pkt3));
  
      if (!TEST_long_gt(len, 0)
              || !TEST_true(PACKET_buf_init(&pkt, data, len))
                 /* Skip the record header */
              || !PACKET_forward(&pkt, SSL3_RT_HEADER_LENGTH)
                 /* Skip the handshake message header */
              || !TEST_true(PACKET_forward(&pkt, SSL3_HM_HEADER_LENGTH))
                 /* Skip client version and random */
              || !TEST_true(PACKET_forward(&pkt, CLIENT_VERSION_LEN
                                                 + SSL3_RANDOM_SIZE))
                 /* Skip session id */
              || !TEST_true(PACKET_get_length_prefixed_1(&pkt, &pkt2))
                 /* Skip ciphers */
              || !TEST_true(PACKET_get_length_prefixed_2(&pkt, &pkt2))
                 /* Skip compression */
              || !TEST_true(PACKET_get_length_prefixed_1(&pkt, &pkt2))
                 /* Extensions len */
              || !TEST_true(PACKET_as_length_prefixed_2(&pkt, &pkt2)))
          goto end;
  
      /* Loop through all extensions */
      while (PACKET_remaining(&pkt2)) {
          if (!TEST_true(PACKET_get_net_2(&pkt2, &type))
                  || !TEST_true(PACKET_get_length_prefixed_2(&pkt2, &pkt3)))
              goto end;
  
          if (type == TLSEXT_TYPE_max_fragment_length) {
              if (!TEST_uint_ne(PACKET_remaining(&pkt3), 0)
                      || !TEST_true(PACKET_get_1(&pkt3, &MFL_code)))
                  goto end;
  
              *mfl_codemfl_code = MFL_code;
              return 1;
          }
      }
  
   end:
      return 0;
  }
  
  /* Maximum-Fragment-Length TLS extension mode to test */
  static const unsigned char max_fragment_len_test[] = {
      TLSEXT_max_fragment_length_512,
      TLSEXT_max_fragment_length_1024,
      TLSEXT_max_fragment_length_2048,
      TLSEXT_max_fragment_length_4096
  };
  
  static int test_max_fragment_len_ext(int idx_tst)
  {
      SSL_CTX *ctx = NULL;
      SSL *con = NULL;
      int testresult = 0, MFL_mode = 0;
      BIO *rbio, *wbio;
  
      if (!TEST_true(create_ssl_ctx_pair(libctx, NULL, TLS_client_method(),
                                         TLS1_VERSION, 0, NULL, &ctx, NULL,
                                         NULL)))
          return 0;
  
      if (!TEST_true(SSL_CTX_set_tlsext_max_fragment_length(
                     ctx, max_fragment_len_test[idx_tst])))
          goto end;
  
      con = SSL_new(ctx);
      if (!TEST_ptr(con))
          goto end;
  
      rbio = BIO_new(BIO_s_mem());
      wbio = BIO_new(BIO_s_mem());
      if (!TEST_ptr(rbio)|| !TEST_ptr(wbio)) {
          BIO_free(rbio);
          BIO_free(wbio);
          goto end;
      }
  
      SSL_set_bio(con, rbio, wbio);
  
      if (!TEST_int_le(SSL_connect(con), 0)) {
          /* This shouldn't succeed because we don't have a server! */
          goto end;
      }
  
      if (!TEST_true(get_MFL_from_client_hello(wbio, &MFL_mode)))
          /* no MFL in client hello */
          goto end;
      if (!TEST_true(max_fragment_len_test[idx_tst] == MFL_mode))
          goto end;
  
      testresult = 1;
  
  end:
      SSL_free(con);
      SSL_CTX_free(ctx);
  
      return testresult;
  }
  
  #ifndef OSSL_NO_USABLE_TLS1_3
  static int test_pha_key_update(void)
  {
      SSL_CTX *cctx = NULL, *sctx = NULL;
      SSL *clientssl = NULL, *serverssl = NULL;
      int testresult = 0;
  
      if (!TEST_true(create_ssl_ctx_pair(libctx, TLS_server_method(),
                                         TLS_client_method(), TLS1_VERSION, 0,
                                         &sctx, &cctx, cert, privkey)))
          return 0;
  
      if (!TEST_true(SSL_CTX_set_min_proto_version(sctx, TLS1_3_VERSION))
          || !TEST_true(SSL_CTX_set_max_proto_version(sctx, TLS1_3_VERSION))
          || !TEST_true(SSL_CTX_set_min_proto_version(cctx, TLS1_3_VERSION))
          || !TEST_true(SSL_CTX_set_max_proto_version(cctx, TLS1_3_VERSION)))
          goto end;
  
      SSL_CTX_set_post_handshake_auth(cctx, 1);
  
      if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl, &clientssl,
                                        NULL, NULL)))
          goto end;
  
      if (!TEST_true(create_ssl_connection(serverssl, clientssl,
                                           SSL_ERROR_NONE)))
          goto end;
  
      SSL_set_verify(serverssl, SSL_VERIFY_PEER, NULL);
      if (!TEST_true(SSL_verify_client_post_handshake(serverssl)))
          goto end;
  
      if (!TEST_true(SSL_key_update(clientssl, SSL_KEY_UPDATE_NOT_REQUESTED)))
          goto end;
  
      /* Start handshake on the server */
      if (!TEST_int_eq(SSL_do_handshake(serverssl), 1))
          goto end;
  
      /* Starts with SSL_connect(), but it's really just SSL_do_handshake() */
      if (!TEST_true(create_ssl_connection(serverssl, clientssl,
                                           SSL_ERROR_NONE)))
          goto end;
  
      SSL_shutdown(clientssl);
      SSL_shutdown(serverssl);
  
      testresult = 1;
  
   end:
      SSL_free(serverssl);
      SSL_free(clientssl);
      SSL_CTX_free(sctx);
      SSL_CTX_free(cctx);
      return testresult;
  }
  #endif
  
  #if !defined(OPENSSL_NO_SRP) && !defined(OPENSSL_NO_TLS1_2)
  
  static SRP_VBASE *vbase = NULL;
  
  static int ssl_srp_cb(SSL *s, int *ad, void *arg)
  {
      int ret = SSL3_AL_FATAL;
      char *username;
      SRP_user_pwd *user = NULL;
  
      username = SSL_get_srp_username(s);
      if (username == NULL) {
          *ad = SSL_AD_INTERNAL_ERROR;
          goto err;
      }
  
      user = SRP_VBASE_get1_by_user(vbase, username);
      if (user == NULL) {
          *ad = SSL_AD_INTERNAL_ERROR;
          goto err;
      }
  
      if (SSL_set_srp_server_param(s, user->N, user->g, user->s, user->v,
                                   user->info) <= 0) {
          *ad = SSL_AD_INTERNAL_ERROR;
          goto err;
      }
  
      ret = 0;
  
   err:
      SRP_user_pwd_free(user);
      return ret;
  }
  
  static int create_new_vfile(char *userid, char *password, const char *filename)
  {
      char *gNid = NULL;
      OPENSSL_STRING *row = OPENSSL_zalloc(sizeof(row) * (DB_NUMBER + 1));
      TXT_DB *db = NULL;
      int ret = 0;
      BIO *out = NULL, *dummy = BIO_new_mem_buf("", 0);
      size_t i;
  
      if (!TEST_ptr(dummy) || !TEST_ptr(row))
          goto end;
  
      gNid = SRP_create_verifier_ex(userid, password, &row[DB_srpsalt],
                                    &row[DB_srpverifier], NULL, NULL, libctx, NULL);
      if (!TEST_ptr(gNid))
          goto end;
  
      /*
       * The only way to create an empty TXT_DB is to provide a BIO with no data
       * in it!
       */
      db = TXT_DB_read(dummy, DB_NUMBER);
      if (!TEST_ptr(db))
          goto end;
  
      out = BIO_new_file(filename, "w");
      if (!TEST_ptr(out))
          goto end;
  
      row[DB_srpid] = OPENSSL_strdup(userid);
      row[DB_srptype] = OPENSSL_strdup("V");
      row[DB_srpgN] = OPENSSL_strdup(gNid);
  
      if (!TEST_ptr(row[DB_srpid])
              || !TEST_ptr(row[DB_srptype])
              || !TEST_ptr(row[DB_srpgN])
              || !TEST_true(TXT_DB_insert(db, row)))
          goto end;
  
      row = NULL;
  
      if (!TXT_DB_write(out, db))
          goto end;
  
      ret = 1;
   end:
      if (row != NULL) {
          for (i = 0; i < DB_NUMBER; i++)
              OPENSSL_free(row[i]);
      }
      OPENSSL_free(row);
      BIO_free(dummy);
      BIO_free(out);
      TXT_DB_free(db);
  
      return ret;
  }
  
  static int create_new_vbase(char *userid, char *password)
  {
      BIGNUM *verifier = NULL, *salt = NULL;
      const SRP_gN *lgN = NULL;
      SRP_user_pwd *user_pwd = NULL;
      int ret = 0;
  
      lgN = SRP_get_default_gN(NULL);
      if (!TEST_ptr(lgN))
          goto end;
  
      if (!TEST_true(SRP_create_verifier_BN_ex(userid, password, &salt, &verifier,
                                               lgN->N, lgN->g, libctx, NULL)))
          goto end;
  
      user_pwd = OPENSSL_zalloc(sizeof(*user_pwd));
      if (!TEST_ptr(user_pwd))
          goto end;
  
      user_pwd->N = lgN->N;
      user_pwd->g = lgN->g;
      user_pwd->id = OPENSSL_strdup(userid);
      if (!TEST_ptr(user_pwd->id))
          goto end;
  
      user_pwd->v = verifier;
      user_pwd->s = salt;
      verifier = salt = NULL;
  
      if (sk_SRP_user_pwd_insert(vbase->users_pwd, user_pwd, 0) == 0)
          goto end;
      user_pwd = NULL;
  
      ret = 1;
  end:
      SRP_user_pwd_free(user_pwd);
      BN_free(salt);
      BN_free(verifier);
  
      return ret;
  }
  
  /*
   * SRP tests
   *
   * Test 0: Simple successful SRP connection, new vbase
   * Test 1: Connection failure due to bad password, new vbase
   * Test 2: Simple successful SRP connection, vbase loaded from existing file
   * Test 3: Connection failure due to bad password, vbase loaded from existing
   *         file
   * Test 4: Simple successful SRP connection, vbase loaded from new file
   * Test 5: Connection failure due to bad password, vbase loaded from new file
   */
  static int test_srp(int tst)
  {
      char *userid = "test", *password = "password", *tstsrpfile;
      SSL_CTX *cctx = NULL, *sctx = NULL;
      SSL *clientssl = NULL, *serverssl = NULL;
      int ret, testresult = 0;
  
      vbase = SRP_VBASE_new(NULL);
      if (!TEST_ptr(vbase))
          goto end;
  
      if (tst == 0 || tst == 1) {
          if (!TEST_true(create_new_vbase(userid, password)))
              goto end;
      } else {
          if (tst == 4 || tst == 5) {
              if (!TEST_true(create_new_vfile(userid, password, tmpfilename)))
                  goto end;
              tstsrpfile = tmpfilename;
          } else {
              tstsrpfile = srpvfile;
          }
          if (!TEST_int_eq(SRP_VBASE_init(vbase, tstsrpfile), SRP_NO_ERROR))
              goto end;
      }
  
      if (!TEST_true(create_ssl_ctx_pair(libctx, TLS_server_method(),
                                         TLS_client_method(), TLS1_VERSION, 0,
                                         &sctx, &cctx, cert, privkey)))
          goto end;
  
      if (!TEST_int_gt(SSL_CTX_set_srp_username_callback(sctx, ssl_srp_cb), 0)
              || !TEST_true(SSL_CTX_set_cipher_list(cctx, "SRP-AES-128-CBC-SHA"))
              || !TEST_true(SSL_CTX_set_max_proto_version(sctx, TLS1_2_VERSION))
              || !TEST_true(SSL_CTX_set_max_proto_version(cctx, TLS1_2_VERSION))
              || !TEST_int_gt(SSL_CTX_set_srp_username(cctx, userid), 0))
          goto end;
  
      if (tst % 2 == 1) {
          if (!TEST_int_gt(SSL_CTX_set_srp_password(cctx, "badpass"), 0))
              goto end;
      } else {
          if (!TEST_int_gt(SSL_CTX_set_srp_password(cctx, password), 0))
              goto end;
      }
  
      if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl, &clientssl,
                                        NULL, NULL)))
          goto end;
  
      ret = create_ssl_connection(serverssl, clientssl, SSL_ERROR_NONE);
      if (ret) {
          if (!TEST_true(tst % 2 == 0))
              goto end;
      } else {
          if (!TEST_true(tst % 2 == 1))
              goto end;
      }
  
      testresult = 1;
  
   end:
      SRP_VBASE_free(vbase);
      vbase = NULL;
      SSL_free(serverssl);
      SSL_free(clientssl);
      SSL_CTX_free(sctx);
      SSL_CTX_free(cctx);
  
      return testresult;
  }
  #endif
  
  static int info_cb_failed = 0;
  static int info_cb_offset = 0;
  static int info_cb_this_state = -1;
  
  static struct info_cb_states_st {
      int where;
      const char *statestr;
  } info_cb_states[][60] = {
      {
          /* TLSv1.2 server followed by resumption */
          {SSL_CB_HANDSHAKE_START, NULL}, {SSL_CB_LOOP, "PINIT"},
          {SSL_CB_LOOP, "PINIT"}, {SSL_CB_LOOP, "TRCH"}, {SSL_CB_LOOP, "TWSH"},
          {SSL_CB_LOOP, "TWSC"}, {SSL_CB_LOOP, "TWSKE"}, {SSL_CB_LOOP, "TWSD"},
          {SSL_CB_EXIT, NULL}, {SSL_CB_LOOP, "TWSD"}, {SSL_CB_LOOP, "TRCKE"},
          {SSL_CB_LOOP, "TRCCS"}, {SSL_CB_LOOP, "TRFIN"}, {SSL_CB_LOOP, "TWST"},
          {SSL_CB_LOOP, "TWCCS"}, {SSL_CB_LOOP, "TWFIN"},
          {SSL_CB_HANDSHAKE_DONE, NULL}, {SSL_CB_EXIT, NULL},
          {SSL_CB_ALERT, NULL}, {SSL_CB_HANDSHAKE_START, NULL},
          {SSL_CB_LOOP, "PINIT"}, {SSL_CB_LOOP, "PINIT"}, {SSL_CB_LOOP, "TRCH"},
          {SSL_CB_LOOP, "TWSH"}, {SSL_CB_LOOP, "TWCCS"}, {SSL_CB_LOOP, "TWFIN"},
          {SSL_CB_EXIT, NULL}, {SSL_CB_LOOP, "TWFIN"}, {SSL_CB_LOOP, "TRCCS"},
          {SSL_CB_LOOP, "TRFIN"}, {SSL_CB_HANDSHAKE_DONE, NULL},
          {SSL_CB_EXIT, NULL}, {0, NULL},
      }, {
          /* TLSv1.2 client followed by resumption */
          {SSL_CB_HANDSHAKE_START, NULL}, {SSL_CB_LOOP, "PINIT"},
          {SSL_CB_LOOP, "TWCH"}, {SSL_CB_EXIT, NULL}, {SSL_CB_LOOP, "TWCH"},
          {SSL_CB_LOOP, "TRSH"}, {SSL_CB_LOOP, "TRSC"}, {SSL_CB_LOOP, "TRSKE"},
          {SSL_CB_LOOP, "TRSD"}, {SSL_CB_LOOP, "TWCKE"}, {SSL_CB_LOOP, "TWCCS"},
          {SSL_CB_LOOP, "TWFIN"}, {SSL_CB_EXIT, NULL}, {SSL_CB_LOOP, "TWFIN"},
          {SSL_CB_LOOP, "TRST"}, {SSL_CB_LOOP, "TRCCS"}, {SSL_CB_LOOP, "TRFIN"},
          {SSL_CB_HANDSHAKE_DONE, NULL}, {SSL_CB_EXIT, NULL}, {SSL_CB_ALERT, NULL},
          {SSL_CB_HANDSHAKE_START, NULL}, {SSL_CB_LOOP, "PINIT"},
          {SSL_CB_LOOP, "TWCH"}, {SSL_CB_EXIT, NULL}, {SSL_CB_LOOP, "TWCH"},
          {SSL_CB_LOOP, "TRSH"}, {SSL_CB_LOOP, "TRCCS"}, {SSL_CB_LOOP, "TRFIN"},
          {SSL_CB_LOOP, "TWCCS"},  {SSL_CB_LOOP, "TWFIN"},
          {SSL_CB_HANDSHAKE_DONE, NULL}, {SSL_CB_EXIT, NULL}, {0, NULL},
      }, {
          /* TLSv1.3 server followed by resumption */
          {SSL_CB_HANDSHAKE_START, NULL}, {SSL_CB_LOOP, "PINIT"},
          {SSL_CB_LOOP, "PINIT"}, {SSL_CB_LOOP, "TRCH"}, {SSL_CB_LOOP, "TWSH"},
          {SSL_CB_LOOP, "TWCCS"}, {SSL_CB_LOOP, "TWEE"}, {SSL_CB_LOOP, "TWSC"},
          {SSL_CB_LOOP, "TWSCV"}, {SSL_CB_LOOP, "TWFIN"}, {SSL_CB_LOOP, "TED"},
          {SSL_CB_EXIT, NULL}, {SSL_CB_LOOP, "TED"}, {SSL_CB_LOOP, "TRFIN"},
          {SSL_CB_HANDSHAKE_DONE, NULL}, {SSL_CB_LOOP, "TWST"},
          {SSL_CB_LOOP, "TWST"}, {SSL_CB_EXIT, NULL}, {SSL_CB_ALERT, NULL},
          {SSL_CB_HANDSHAKE_START, NULL}, {SSL_CB_LOOP, "PINIT"},
          {SSL_CB_LOOP, "PINIT"}, {SSL_CB_LOOP, "TRCH"}, {SSL_CB_LOOP, "TWSH"},
          {SSL_CB_LOOP, "TWCCS"}, {SSL_CB_LOOP, "TWEE"}, {SSL_CB_LOOP, "TWFIN"},
          {SSL_CB_LOOP, "TED"}, {SSL_CB_EXIT, NULL}, {SSL_CB_LOOP, "TED"},
          {SSL_CB_LOOP, "TRFIN"}, {SSL_CB_HANDSHAKE_DONE, NULL},
          {SSL_CB_LOOP, "TWST"}, {SSL_CB_EXIT, NULL}, {0, NULL},
      }, {
          /* TLSv1.3 client followed by resumption */
          {SSL_CB_HANDSHAKE_START, NULL}, {SSL_CB_LOOP, "PINIT"},
          {SSL_CB_LOOP, "TWCH"}, {SSL_CB_EXIT, NULL}, {SSL_CB_LOOP, "TWCH"},
          {SSL_CB_LOOP, "TRSH"}, {SSL_CB_LOOP, "TREE"}, {SSL_CB_LOOP, "TRSC"},
          {SSL_CB_LOOP, "TRSCV"}, {SSL_CB_LOOP, "TRFIN"}, {SSL_CB_LOOP, "TWCCS"},
          {SSL_CB_LOOP, "TWFIN"},  {SSL_CB_HANDSHAKE_DONE, NULL},
          {SSL_CB_EXIT, NULL}, {SSL_CB_LOOP, "SSLOK"}, {SSL_CB_LOOP, "SSLOK"},
          {SSL_CB_LOOP, "TRST"}, {SSL_CB_EXIT, NULL}, {SSL_CB_LOOP, "SSLOK"},
          {SSL_CB_LOOP, "SSLOK"}, {SSL_CB_LOOP, "TRST"}, {SSL_CB_EXIT, NULL},
          {SSL_CB_ALERT, NULL}, {SSL_CB_HANDSHAKE_START, NULL},
          {SSL_CB_LOOP, "PINIT"}, {SSL_CB_LOOP, "TWCH"}, {SSL_CB_EXIT, NULL},
          {SSL_CB_LOOP, "TWCH"}, {SSL_CB_LOOP, "TRSH"},  {SSL_CB_LOOP, "TREE"},
          {SSL_CB_LOOP, "TRFIN"}, {SSL_CB_LOOP, "TWCCS"}, {SSL_CB_LOOP, "TWFIN"},
          {SSL_CB_HANDSHAKE_DONE, NULL}, {SSL_CB_EXIT, NULL},
          {SSL_CB_LOOP, "SSLOK"}, {SSL_CB_LOOP, "SSLOK"}, {SSL_CB_LOOP, "TRST"},
          {SSL_CB_EXIT, NULL}, {0, NULL},
      }, {
          /* TLSv1.3 server, early_data */
          {SSL_CB_HANDSHAKE_START, NULL}, {SSL_CB_LOOP, "PINIT"},
          {SSL_CB_LOOP, "PINIT"}, {SSL_CB_LOOP, "TRCH"}, {SSL_CB_LOOP, "TWSH"},
          {SSL_CB_LOOP, "TWCCS"}, {SSL_CB_LOOP, "TWEE"}, {SSL_CB_LOOP, "TWFIN"},
          {SSL_CB_HANDSHAKE_DONE, NULL}, {SSL_CB_EXIT, NULL},
          {SSL_CB_HANDSHAKE_START, NULL}, {SSL_CB_LOOP, "TED"},
          {SSL_CB_LOOP, "TED"}, {SSL_CB_LOOP, "TWEOED"}, {SSL_CB_LOOP, "TRFIN"},
          {SSL_CB_HANDSHAKE_DONE, NULL}, {SSL_CB_LOOP, "TWST"},
          {SSL_CB_EXIT, NULL}, {0, NULL},
      }, {
          /* TLSv1.3 client, early_data */
          {SSL_CB_HANDSHAKE_START, NULL}, {SSL_CB_LOOP, "PINIT"},
          {SSL_CB_LOOP, "TWCH"}, {SSL_CB_LOOP, "TWCCS"},
          {SSL_CB_HANDSHAKE_DONE, NULL}, {SSL_CB_EXIT, NULL},
          {SSL_CB_HANDSHAKE_START, NULL}, {SSL_CB_LOOP, "TED"},
          {SSL_CB_LOOP, "TED"}, {SSL_CB_LOOP, "TRSH"}, {SSL_CB_LOOP, "TREE"},
          {SSL_CB_LOOP, "TRFIN"}, {SSL_CB_LOOP, "TPEDE"}, {SSL_CB_LOOP, "TWEOED"},
          {SSL_CB_LOOP, "TWFIN"}, {SSL_CB_HANDSHAKE_DONE, NULL},
          {SSL_CB_EXIT, NULL}, {SSL_CB_LOOP, "SSLOK"}, {SSL_CB_LOOP, "SSLOK"},
          {SSL_CB_LOOP, "TRST"}, {SSL_CB_EXIT, NULL}, {0, NULL},
      }, {
          {0, NULL},
      }
  };
  
  static void sslapi_info_callback(const SSL *s, int where, int ret)
  {
      struct info_cb_states_st *state = info_cb_states[info_cb_offset];
  
      /* We do not ever expect a connection to fail in this test */
      if (!TEST_false(ret == 0)) {
          info_cb_failed = 1;
          return;
      }
  
      /*
       * Do some sanity checks. We never expect these things to happen in this
       * test
       */
      if (!TEST_false((SSL_is_server(s) && (where & SSL_ST_CONNECT) != 0))
              || !TEST_false(!SSL_is_server(s) && (where & SSL_ST_ACCEPT) != 0)
              || !TEST_int_ne(state[++info_cb_this_state].where, 0)) {
          info_cb_failed = 1;
          return;
      }
  
      /* Now check we're in the right state */
      if (!TEST_true((where & state[info_cb_this_state].where) != 0)) {
          info_cb_failed = 1;
          return;
      }
      if ((where & SSL_CB_LOOP) != 0
              && !TEST_int_eq(strcmp(SSL_state_string(s),
                              state[info_cb_this_state].statestr), 0)) {
          info_cb_failed = 1;
          return;
      }
  
      /*
       * Check that, if we've got SSL_CB_HANDSHAKE_DONE we are not in init
       */
      if ((where & SSL_CB_HANDSHAKE_DONE)
              && SSL_in_init((SSL *)s) != 0) {
          info_cb_failed = 1;
          return;
      }
  }
  
  /*
   * Test the info callback gets called when we expect it to.
   *
   * Test 0: TLSv1.2, server
   * Test 1: TLSv1.2, client
   * Test 2: TLSv1.3, server
   * Test 3: TLSv1.3, client
   * Test 4: TLSv1.3, server, early_data
   * Test 5: TLSv1.3, client, early_data
   */
  static int test_info_callback(int tst)
  {
      SSL_CTX *cctx = NULL, *sctx = NULL;
      SSL *clientssl = NULL, *serverssl = NULL;
      SSL_SESSION *clntsess = NULL;
      int testresult = 0;
      int tlsvers;
  
      if (tst < 2) {
  /* We need either ECDHE or DHE for the TLSv1.2 test to work */
  #if !defined(OPENSSL_NO_TLS1_2) && (!defined(OPENSSL_NO_EC) \
                                      || !defined(OPENSSL_NO_DH))
          tlsvers = TLS1_2_VERSION;
  #else
          return 1;
  #endif
      } else {
  #ifndef OSSL_NO_USABLE_TLS1_3
          tlsvers = TLS1_3_VERSION;
  #else
          return 1;
  #endif
      }
  
      /* Reset globals */
      info_cb_failed = 0;
      info_cb_this_state = -1;
      info_cb_offset = tst;
  
  #ifndef OSSL_NO_USABLE_TLS1_3
      if (tst >= 4) {
          SSL_SESSION *sess = NULL;
          size_t written, readbytes;
          unsigned char buf[80];
  
          /* early_data tests */
          if (!TEST_true(setupearly_data_test(&cctx, &sctx, &clientssl,
                                              &serverssl, &sess, 0)))
              goto end;
  
          /* We don't actually need this reference */
          SSL_SESSION_free(sess);
  
          SSL_set_info_callback((tst % 2) == 0 ? serverssl : clientssl,
                                sslapi_info_callback);
  
          /* Write and read some early data and then complete the connection */
          if (!TEST_true(SSL_write_early_data(clientssl, MSG1, strlen(MSG1),
                                              &written))
                  || !TEST_size_t_eq(written, strlen(MSG1))
                  || !TEST_int_eq(SSL_read_early_data(serverssl, buf,
                                                      sizeof(buf), &readbytes),
                                  SSL_READ_EARLY_DATA_SUCCESS)
                  || !TEST_mem_eq(MSG1, readbytes, buf, strlen(MSG1))
                  || !TEST_int_eq(SSL_get_early_data_status(serverssl),
                                  SSL_EARLY_DATA_ACCEPTED)
                  || !TEST_true(create_ssl_connection(serverssl, clientssl,
                                                      SSL_ERROR_NONE))
                  || !TEST_false(info_cb_failed))
              goto end;
  
          testresult = 1;
          goto end;
      }
  #endif
  
      if (!TEST_true(create_ssl_ctx_pair(libctx, TLS_server_method(),
                                         TLS_client_method(),
                                         tlsvers, tlsvers, &sctx, &cctx, cert,
                                         privkey)))
          goto end;
  
      if (!TEST_true(SSL_CTX_set_dh_auto(sctx, 1)))
          goto end;
  
      /*
       * For even numbered tests we check the server callbacks. For odd numbers we
       * check the client.
       */
      SSL_CTX_set_info_callback((tst % 2) == 0 ? sctx : cctx,
                                sslapi_info_callback);
  
      if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl,
                                            &clientssl, NULL, NULL))
          || !TEST_true(create_ssl_connection(serverssl, clientssl,
                                              SSL_ERROR_NONE))
          || !TEST_false(info_cb_failed))
      goto end;
  
  
  
      clntsess = SSL_get1_session(clientssl);
      SSL_shutdown(clientssl);
      SSL_shutdown(serverssl);
      SSL_free(serverssl);
      SSL_free(clientssl);
      serverssl = clientssl = NULL;
  
      /* Now do a resumption */
      if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl, &clientssl, NULL,
                                        NULL))
              || !TEST_true(SSL_set_session(clientssl, clntsess))
              || !TEST_true(create_ssl_connection(serverssl, clientssl,
                                                  SSL_ERROR_NONE))
              || !TEST_true(SSL_session_reused(clientssl))
              || !TEST_false(info_cb_failed))
          goto end;
  
      testresult = 1;
  
   end:
      SSL_free(serverssl);
      SSL_free(clientssl);
      SSL_SESSION_free(clntsess);
      SSL_CTX_free(sctx);
      SSL_CTX_free(cctx);
      return testresult;
  }
  
  static int test_ssl_pending(int tst)
  {
      SSL_CTX *cctx = NULL, *sctx = NULL;
      SSL *clientssl = NULL, *serverssl = NULL;
      int testresult = 0;
      char msg[] = "A test message";
      char buf[5];
      size_t written, readbytes;
  
      if (tst == 0) {
          if (!TEST_true(create_ssl_ctx_pair(libctx, TLS_server_method(),
                                             TLS_client_method(),
                                             TLS1_VERSION, 0,
                                             &sctx, &cctx, cert, privkey)))
              goto end;
      } else {
  #ifndef OPENSSL_NO_DTLS
          if (!TEST_true(create_ssl_ctx_pair(libctx, DTLS_server_method(),
                                             DTLS_client_method(),
                                             DTLS1_VERSION, 0,
                                             &sctx, &cctx, cert, privkey)))
              goto end;
  
  # ifdef OPENSSL_NO_DTLS1_2
          /* Not supported in the FIPS provider */
          if (is_fips) {
              testresult = 1;
              goto end;
          };
          /*
           * Default sigalgs are SHA1 based in <DTLS1.2 which is in security
           * level 0
           */
          if (!TEST_true(SSL_CTX_set_cipher_list(sctx, "DEFAULT:@SECLEVEL=0"))
                  || !TEST_true(SSL_CTX_set_cipher_list(cctx,
                                                      "DEFAULT:@SECLEVEL=0")))
              goto end;
  # endif
  #else
          return 1;
  #endif
      }
  
      if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl, &clientssl,
                                               NULL, NULL))
              || !TEST_true(create_ssl_connection(serverssl, clientssl,
                                                  SSL_ERROR_NONE)))
          goto end;
  
      if (!TEST_int_eq(SSL_pending(clientssl), 0)
              || !TEST_false(SSL_has_pending(clientssl))
              || !TEST_int_eq(SSL_pending(serverssl), 0)
              || !TEST_false(SSL_has_pending(serverssl))
              || !TEST_true(SSL_write_ex(serverssl, msg, sizeof(msg), &written))
              || !TEST_size_t_eq(written, sizeof(msg))
              || !TEST_true(SSL_read_ex(clientssl, buf, sizeof(buf), &readbytes))
              || !TEST_size_t_eq(readbytes, sizeof(buf))
              || !TEST_int_eq(SSL_pending(clientssl), (int)(written - readbytes))
              || !TEST_true(SSL_has_pending(clientssl)))
          goto end;
  
      testresult = 1;
  
   end:
      SSL_free(serverssl);
      SSL_free(clientssl);
      SSL_CTX_free(sctx);
      SSL_CTX_free(cctx);
  
      return testresult;
  }
  
  static struct {
      unsigned int maxprot;
      const char *clntciphers;
      const char *clnttls13ciphers;
      const char *srvrciphers;
      const char *srvrtls13ciphers;
      const char *shared;
      const char *fipsshared;
  } shared_ciphers_data[] = {
  /*
   * We can't establish a connection (even in TLSv1.1) with these ciphersuites if
   * TLSv1.3 is enabled but TLSv1.2 is disabled.
   */
  #if defined(OSSL_NO_USABLE_TLS1_3) || !defined(OPENSSL_NO_TLS1_2)
      {
          TLS1_2_VERSION,
          "AES128-SHA:AES256-SHA",
          NULL,
          "AES256-SHA:DHE-RSA-AES128-SHA",
          NULL,
          "AES256-SHA",
          "AES256-SHA"
      },
  # if !defined(OPENSSL_NO_CHACHA) \
       && !defined(OPENSSL_NO_POLY1305) \
       && !defined(OPENSSL_NO_EC)
      {
          TLS1_2_VERSION,
          "AES128-SHA:ECDHE-RSA-CHACHA20-POLY1305",
          NULL,
          "AES128-SHA:ECDHE-RSA-CHACHA20-POLY1305",
          NULL,
          "AES128-SHA:ECDHE-RSA-CHACHA20-POLY1305",
          "AES128-SHA"
      },
  # endif
      {
          TLS1_2_VERSION,
          "AES128-SHA:DHE-RSA-AES128-SHA:AES256-SHA",
          NULL,
          "AES128-SHA:DHE-RSA-AES256-SHA:AES256-SHA",
          NULL,
          "AES128-SHA:AES256-SHA",
          "AES128-SHA:AES256-SHA"
      },
      {
          TLS1_2_VERSION,
          "AES128-SHA:AES256-SHA",
          NULL,
          "AES128-SHA:DHE-RSA-AES128-SHA",
          NULL,
          "AES128-SHA",
          "AES128-SHA"
      },
  #endif
  /*
   * This test combines TLSv1.3 and TLSv1.2 ciphersuites so they must both be
   * enabled.
   */
  #if !defined(OSSL_NO_USABLE_TLS1_3) && !defined(OPENSSL_NO_TLS1_2) \
      && !defined(OPENSSL_NO_CHACHA) && !defined(OPENSSL_NO_POLY1305)
      {
          TLS1_3_VERSION,
          "AES128-SHA:AES256-SHA",
          NULL,
          "AES256-SHA:AES128-SHA256",
          NULL,
          "TLS_AES_256_GCM_SHA384:TLS_CHACHA20_POLY1305_SHA256:"
          "TLS_AES_128_GCM_SHA256:AES256-SHA",
          "TLS_AES_256_GCM_SHA384:TLS_AES_128_GCM_SHA256:AES256-SHA"
      },
  #endif
  #ifndef OSSL_NO_USABLE_TLS1_3
      {
          TLS1_3_VERSION,
          "AES128-SHA",
          "TLS_AES_256_GCM_SHA384",
          "AES256-SHA",
          "TLS_AES_256_GCM_SHA384",
          "TLS_AES_256_GCM_SHA384",
          "TLS_AES_256_GCM_SHA384"
      },
  #endif
  };
  
  static int int_test_ssl_get_shared_ciphers(int tst, int clnt)
  {
      SSL_CTX *cctx = NULL, *sctx = NULL;
      SSL *clientssl = NULL, *serverssl = NULL;
      int testresult = 0;
      char buf[1024];
      OSSL_LIB_CTX *tmplibctx = OSSL_LIB_CTX_new();
  
      if (!TEST_ptr(tmplibctx))
          goto end;
  
      /*
       * Regardless of whether we're testing with the FIPS provider loaded into
       * libctx, we want one peer to always use the full set of ciphersuites
       * available. Therefore we use a separate libctx with the default provider
       * loaded into it. We run the same tests twice - once with the client side
       * having the full set of ciphersuites and once with the server side.
       */
      if (clnt) {
          cctx = SSL_CTX_new_ex(tmplibctx, NULL, TLS_client_method());
          if (!TEST_ptr(cctx))
              goto end;
      } else {
          sctx = SSL_CTX_new_ex(tmplibctx, NULL, TLS_server_method());
          if (!TEST_ptr(sctx))
              goto end;
      }
  
      if (!TEST_true(create_ssl_ctx_pair(libctx, TLS_server_method(),
                                         TLS_client_method(),
                                         TLS1_VERSION,
                                         shared_ciphers_data[tst].maxprot,
                                         &sctx, &cctx, cert, privkey)))
          goto end;
  
      if (!TEST_true(SSL_CTX_set_cipher_list(cctx,
                                          shared_ciphers_data[tst].clntciphers))
              || (shared_ciphers_data[tst].clnttls13ciphers != NULL
                  && !TEST_true(SSL_CTX_set_ciphersuites(cctx,
                                      shared_ciphers_data[tst].clnttls13ciphers)))
              || !TEST_true(SSL_CTX_set_cipher_list(sctx,
                                          shared_ciphers_data[tst].srvrciphers))
              || (shared_ciphers_data[tst].srvrtls13ciphers != NULL
                  && !TEST_true(SSL_CTX_set_ciphersuites(sctx,
                                      shared_ciphers_data[tst].srvrtls13ciphers))))
          goto end;
  
  
      if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl, &clientssl,
                                               NULL, NULL))
              || !TEST_true(create_ssl_connection(serverssl, clientssl,
                                                  SSL_ERROR_NONE)))
          goto end;
  
      if (!TEST_ptr(SSL_get_shared_ciphers(serverssl, buf, sizeof(buf)))
              || !TEST_int_eq(strcmp(buf,
                                     is_fips
                                     ? shared_ciphers_data[tst].fipsshared
                                     : shared_ciphers_data[tst].shared),
                                     0)) {
          TEST_info("Shared ciphers are: %s\n", buf);
          goto end;
      }
  
      testresult = 1;
  
   end:
      SSL_free(serverssl);
      SSL_free(clientssl);
      SSL_CTX_free(sctx);
      SSL_CTX_free(cctx);
      OSSL_LIB_CTX_free(tmplibctx);
  
      return testresult;
  }
  
  static int test_ssl_get_shared_ciphers(int tst)
  {
      return int_test_ssl_get_shared_ciphers(tst, 0)
             && int_test_ssl_get_shared_ciphers(tst, 1);
  }
  
  
  static const char *appdata = "Hello World";
  static int gen_tick_called, dec_tick_called, tick_key_cb_called;
  static int tick_key_renew = 0;
  static SSL_TICKET_RETURN tick_dec_ret = SSL_TICKET_RETURN_ABORT;
  
  static int gen_tick_cb(SSL *s, void *arg)
  {
      gen_tick_called = 1;
  
      return SSL_SESSION_set1_ticket_appdata(SSL_get_session(s), appdata,
                                             strlen(appdata));
  }
  
  static SSL_TICKET_RETURN dec_tick_cb(SSL *s, SSL_SESSION *ss,
                                       const unsigned char *keyname,
                                       size_t keyname_length,
                                       SSL_TICKET_STATUS status,
                                       void *arg)
  {
      void *tickdata;
      size_t tickdlen;
  
      dec_tick_called = 1;
  
      if (status == SSL_TICKET_EMPTY)
          return SSL_TICKET_RETURN_IGNORE_RENEW;
  
      if (!TEST_true(status == SSL_TICKET_SUCCESS
                     || status == SSL_TICKET_SUCCESS_RENEW))
          return SSL_TICKET_RETURN_ABORT;
  
      if (!TEST_true(SSL_SESSION_get0_ticket_appdata(ss, &tickdata,
                                                     &tickdlen))
              || !TEST_size_t_eq(tickdlen, strlen(appdata))
              || !TEST_int_eq(memcmp(tickdata, appdata, tickdlen), 0))
          return SSL_TICKET_RETURN_ABORT;
  
      if (tick_key_cb_called)  {
          /* Don't change what the ticket key callback wanted to do */
          switch (status) {
          case SSL_TICKET_NO_DECRYPT:
              return SSL_TICKET_RETURN_IGNORE_RENEW;
  
          case SSL_TICKET_SUCCESS:
              return SSL_TICKET_RETURN_USE;
  
          case SSL_TICKET_SUCCESS_RENEW:
              return SSL_TICKET_RETURN_USE_RENEW;
  
          default:
              return SSL_TICKET_RETURN_ABORT;
          }
      }
      return tick_dec_ret;
  
  }
  
  #ifndef OPENSSL_NO_DEPRECATED_3_0
  static int tick_key_cb(SSL *s, unsigned char key_name[16],
                         unsigned char iv[EVP_MAX_IV_LENGTH], EVP_CIPHER_CTX *ctx,
                         HMAC_CTX *hctx, int enc)
  {
      const unsigned char tick_aes_key[16] = "0123456789abcdef";
      const unsigned char tick_hmac_key[16] = "0123456789abcdef";
      EVP_CIPHER *aes128cbc = EVP_CIPHER_fetch(libctx, "AES-128-CBC", NULL);
      EVP_MD *sha256 = EVP_MD_fetch(libctx, "SHA-256", NULL);
      int ret;
  
      tick_key_cb_called = 1;
      memset(iv, 0, AES_BLOCK_SIZE);
      memset(key_name, 0, 16);
      if (aes128cbc == NULL
              || sha256 == NULL
              || !EVP_CipherInit_ex(ctx, aes128cbc, NULL, tick_aes_key, iv, enc)
              || !HMAC_Init_ex(hctx, tick_hmac_key, sizeof(tick_hmac_key), sha256,
                               NULL))
          ret = -1;
      else
          ret = tick_key_renew ? 2 : 1;
  
      EVP_CIPHER_free(aes128cbc);
      EVP_MD_free(sha256);
  
      return ret;
  }
  #endif
  
  static int tick_key_evp_cb(SSL *s, unsigned char key_name[16],
                             unsigned char iv[EVP_MAX_IV_LENGTH],
                             EVP_CIPHER_CTX *ctx, EVP_MAC_CTX *hctx, int enc)
  {
      const unsigned char tick_aes_key[16] = "0123456789abcdef";
      unsigned char tick_hmac_key[16] = "0123456789abcdef";
      OSSL_PARAM params[2];
      EVP_CIPHER *aes128cbc = EVP_CIPHER_fetch(libctx, "AES-128-CBC", NULL);
      int ret;
  
      tick_key_cb_called = 1;
      memset(iv, 0, AES_BLOCK_SIZE);
      memset(key_name, 0, 16);
      params[0] = OSSL_PARAM_construct_utf8_string(OSSL_MAC_PARAM_DIGEST,
                                                   "SHA256", 0);
      params[1] = OSSL_PARAM_construct_end();
      if (aes128cbc == NULL
              || !EVP_CipherInit_ex(ctx, aes128cbc, NULL, tick_aes_key, iv, enc)
              || !EVP_MAC_init(hctx, tick_hmac_key, sizeof(tick_hmac_key),
                               params))
          ret = -1;
      else
          ret = tick_key_renew ? 2 : 1;
  
      EVP_CIPHER_free(aes128cbc);
  
      return ret;
  }
  
  /*
   * Test the various ticket callbacks
   * Test 0: TLSv1.2, no ticket key callback, no ticket, no renewal
   * Test 1: TLSv1.3, no ticket key callback, no ticket, no renewal
   * Test 2: TLSv1.2, no ticket key callback, no ticket, renewal
   * Test 3: TLSv1.3, no ticket key callback, no ticket, renewal
   * Test 4: TLSv1.2, no ticket key callback, ticket, no renewal
   * Test 5: TLSv1.3, no ticket key callback, ticket, no renewal
   * Test 6: TLSv1.2, no ticket key callback, ticket, renewal
   * Test 7: TLSv1.3, no ticket key callback, ticket, renewal
   * Test 8: TLSv1.2, old ticket key callback, ticket, no renewal
   * Test 9: TLSv1.3, old ticket key callback, ticket, no renewal
   * Test 10: TLSv1.2, old ticket key callback, ticket, renewal
   * Test 11: TLSv1.3, old ticket key callback, ticket, renewal
   * Test 12: TLSv1.2, ticket key callback, ticket, no renewal
   * Test 13: TLSv1.3, ticket key callback, ticket, no renewal
   * Test 14: TLSv1.2, ticket key callback, ticket, renewal
   * Test 15: TLSv1.3, ticket key callback, ticket, renewal
   */
  static int test_ticket_callbacks(int tst)
  {
      SSL_CTX *cctx = NULL, *sctx = NULL;
      SSL *clientssl = NULL, *serverssl = NULL;
      SSL_SESSION *clntsess = NULL;
      int testresult = 0;
  
  #ifdef OPENSSL_NO_TLS1_2
      if (tst % 2 == 0)
          return 1;
  #endif
  #ifdef OSSL_NO_USABLE_TLS1_3
      if (tst % 2 == 1)
          return 1;
  #endif
  #ifdef OPENSSL_NO_DEPRECATED_3_0
      if (tst >= 8 && tst <= 11)
          return 1;
  #endif
  
      gen_tick_called = dec_tick_called = tick_key_cb_called = 0;
  
      /* Which tests the ticket key callback should request renewal for */
      if (tst == 10 || tst == 11 || tst == 14 || tst == 15)
          tick_key_renew = 1;
      else
          tick_key_renew = 0;
  
      /* Which tests the decrypt ticket callback should request renewal for */
      switch (tst) {
      case 0:
      case 1:
          tick_dec_ret = SSL_TICKET_RETURN_IGNORE;
          break;
  
      case 2:
      case 3:
          tick_dec_ret = SSL_TICKET_RETURN_IGNORE_RENEW;
          break;
  
      case 4:
      case 5:
          tick_dec_ret = SSL_TICKET_RETURN_USE;
          break;
  
      case 6:
      case 7:
          tick_dec_ret = SSL_TICKET_RETURN_USE_RENEW;
          break;
  
      default:
          tick_dec_ret = SSL_TICKET_RETURN_ABORT;
      }
  
      if (!TEST_true(create_ssl_ctx_pair(libctx, TLS_server_method(),
                                         TLS_client_method(),
                                         TLS1_VERSION,
                                         ((tst % 2) == 0) ? TLS1_2_VERSION
                                                          : TLS1_3_VERSION,
                                         &sctx, &cctx, cert, privkey)))
          goto end;
  
      /*
       * We only want sessions to resume from tickets - not the session cache. So
       * switch the cache off.
       */
      if (!TEST_true(SSL_CTX_set_session_cache_mode(sctx, SSL_SESS_CACHE_OFF)))
          goto end;
  
      if (!TEST_true(SSL_CTX_set_session_ticket_cb(sctx, gen_tick_cb, dec_tick_cb,
                                                   NULL)))
          goto end;
  
      if (tst >= 12) {
          if (!TEST_true(SSL_CTX_set_tlsext_ticket_key_evp_cb(sctx, tick_key_evp_cb)))
              goto end;
  #ifndef OPENSSL_NO_DEPRECATED_3_0
      } else if (tst >= 8) {
          if (!TEST_true(SSL_CTX_set_tlsext_ticket_key_cb(sctx, tick_key_cb)))
              goto end;
  #endif
      }
  
      if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl, &clientssl,
                                               NULL, NULL))
              || !TEST_true(create_ssl_connection(serverssl, clientssl,
                                                  SSL_ERROR_NONE)))
          goto end;
  
      /*
       * The decrypt ticket key callback in TLSv1.2 should be called even though
       * we have no ticket yet, because it gets called with a status of
       * SSL_TICKET_EMPTY (the client indicates support for tickets but does not
       * actually send any ticket data). This does not happen in TLSv1.3 because
       * it is not valid to send empty ticket data in TLSv1.3.
       */
      if (!TEST_int_eq(gen_tick_called, 1)
              || !TEST_int_eq(dec_tick_called, ((tst % 2) == 0) ? 1 : 0))
          goto end;
  
      gen_tick_called = dec_tick_called = 0;
  
      clntsess = SSL_get1_session(clientssl);
      SSL_shutdown(clientssl);
      SSL_shutdown(serverssl);
      SSL_free(serverssl);
      SSL_free(clientssl);
      serverssl = clientssl = NULL;
  
      /* Now do a resumption */
      if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl, &clientssl, NULL,
                                        NULL))
              || !TEST_true(SSL_set_session(clientssl, clntsess))
              || !TEST_true(create_ssl_connection(serverssl, clientssl,
                                                  SSL_ERROR_NONE)))
          goto end;
  
      if (tick_dec_ret == SSL_TICKET_RETURN_IGNORE
              || tick_dec_ret == SSL_TICKET_RETURN_IGNORE_RENEW) {
          if (!TEST_false(SSL_session_reused(clientssl)))
              goto end;
      } else {
          if (!TEST_true(SSL_session_reused(clientssl)))
              goto end;
      }
  
      if (!TEST_int_eq(gen_tick_called,
                       (tick_key_renew
                        || tick_dec_ret == SSL_TICKET_RETURN_IGNORE_RENEW
                        || tick_dec_ret == SSL_TICKET_RETURN_USE_RENEW)
                       ? 1 : 0)
              || !TEST_int_eq(dec_tick_called, 1))
          goto end;
  
      testresult = 1;
  
   end:
      SSL_SESSION_free(clntsess);
      SSL_free(serverssl);
      SSL_free(clientssl);
      SSL_CTX_free(sctx);
      SSL_CTX_free(cctx);
  
      return testresult;
  }
  
  /*
   * Test incorrect shutdown.
   * Test 0: client does not shutdown properly,
   *         server does not set SSL_OP_IGNORE_UNEXPECTED_EOF,
   *         server should get SSL_ERROR_SSL
   * Test 1: client does not shutdown properly,
   *         server sets SSL_OP_IGNORE_UNEXPECTED_EOF,
   *         server should get SSL_ERROR_ZERO_RETURN
   */
  static int test_incorrect_shutdown(int tst)
  {
      SSL_CTX *cctx = NULL, *sctx = NULL;
      SSL *clientssl = NULL, *serverssl = NULL;
      int testresult = 0;
      char buf[80];
      BIO *c2s;
  
      if (!TEST_true(create_ssl_ctx_pair(libctx, TLS_server_method(),
                                         TLS_client_method(), 0, 0,
                                         &sctx, &cctx, cert, privkey)))
          goto end;
  
      if (tst == 1)
          SSL_CTX_set_options(sctx, SSL_OP_IGNORE_UNEXPECTED_EOF);
  
      if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl, &clientssl,
                                              NULL, NULL)))
          goto end;
  
      if (!TEST_true(create_ssl_connection(serverssl, clientssl,
                                                SSL_ERROR_NONE)))
          goto end;
  
      c2s = SSL_get_rbio(serverssl);
      BIO_set_mem_eof_return(c2s, 0);
  
      if (!TEST_false(SSL_read(serverssl, buf, sizeof(buf))))
          goto end;
  
      if (tst == 0 && !TEST_int_eq(SSL_get_error(serverssl, 0), SSL_ERROR_SSL) )
          goto end;
      if (tst == 1 && !TEST_int_eq(SSL_get_error(serverssl, 0), SSL_ERROR_ZERO_RETURN) )
          goto end;
  
      testresult = 1;
  
   end:
      SSL_free(serverssl);
      SSL_free(clientssl);
      SSL_CTX_free(sctx);
      SSL_CTX_free(cctx);
  
      return testresult;
  }
  
  /*
   * Test bi-directional shutdown.
   * Test 0: TLSv1.2
   * Test 1: TLSv1.2, server continues to read/write after client shutdown
   * Test 2: TLSv1.3, no pending NewSessionTicket messages
   * Test 3: TLSv1.3, pending NewSessionTicket messages
   * Test 4: TLSv1.3, server continues to read/write after client shutdown, server
   *                  sends key update, client reads it
   * Test 5: TLSv1.3, server continues to read/write after client shutdown, server
   *                  sends CertificateRequest, client reads and ignores it
   * Test 6: TLSv1.3, server continues to read/write after client shutdown, client
   *                  doesn't read it
   */
  static int test_shutdown(int tst)
  {
      SSL_CTX *cctx = NULL, *sctx = NULL;
      SSL *clientssl = NULL, *serverssl = NULL;
      int testresult = 0;
      char msg[] = "A test message";
      char buf[80];
      size_t written, readbytes;
      SSL_SESSION *sess;
  
  #ifdef OPENSSL_NO_TLS1_2
      if (tst <= 1)
          return 1;
  #endif
  #ifdef OSSL_NO_USABLE_TLS1_3
      if (tst >= 2)
          return 1;
  #endif
  
      if (!TEST_true(create_ssl_ctx_pair(libctx, TLS_server_method(),
                                         TLS_client_method(),
                                         TLS1_VERSION,
                                         (tst <= 1) ? TLS1_2_VERSION
                                                    : TLS1_3_VERSION,
                                         &sctx, &cctx, cert, privkey)))
          goto end;
  
      if (tst == 5)
          SSL_CTX_set_post_handshake_auth(cctx, 1);
  
      if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl, &clientssl,
                                               NULL, NULL)))
          goto end;
  
      if (tst == 3) {
          if (!TEST_true(create_bare_ssl_connection(serverssl, clientssl,
                                                    SSL_ERROR_NONE, 1))
                  || !TEST_ptr_ne(sess = SSL_get_session(clientssl), NULL)
                  || !TEST_false(SSL_SESSION_is_resumable(sess)))
              goto end;
      } else if (!TEST_true(create_ssl_connection(serverssl, clientssl,
                                                SSL_ERROR_NONE))
              || !TEST_ptr_ne(sess = SSL_get_session(clientssl), NULL)
              || !TEST_true(SSL_SESSION_is_resumable(sess))) {
          goto end;
      }
  
      if (!TEST_int_eq(SSL_shutdown(clientssl), 0))
          goto end;
  
      if (tst >= 4) {
          /*
           * Reading on the server after the client has sent close_notify should
           * fail and provide SSL_ERROR_ZERO_RETURN
           */
          if (!TEST_false(SSL_read_ex(serverssl, buf, sizeof(buf), &readbytes))
                  || !TEST_int_eq(SSL_get_error(serverssl, 0),
                                  SSL_ERROR_ZERO_RETURN)
                  || !TEST_int_eq(SSL_get_shutdown(serverssl),
                                  SSL_RECEIVED_SHUTDOWN)
                     /*
                      * Even though we're shutdown on receive we should still be
                      * able to write.
                      */
                  || !TEST_true(SSL_write(serverssl, msg, sizeof(msg))))
              goto end;
          if (tst == 4
                  && !TEST_true(SSL_key_update(serverssl,
                                               SSL_KEY_UPDATE_REQUESTED)))
              goto end;
          if (tst == 5) {
              SSL_set_verify(serverssl, SSL_VERIFY_PEER, NULL);
              if (!TEST_true(SSL_verify_client_post_handshake(serverssl)))
                  goto end;
          }
          if ((tst == 4 || tst == 5)
                  && !TEST_true(SSL_write(serverssl, msg, sizeof(msg))))
              goto end;
          if (!TEST_int_eq(SSL_shutdown(serverssl), 1))
              goto end;
          if (tst == 4 || tst == 5) {
              /* Should still be able to read data from server */
              if (!TEST_true(SSL_read_ex(clientssl, buf, sizeof(buf),
                                         &readbytes))
                      || !TEST_size_t_eq(readbytes, sizeof(msg))
                      || !TEST_int_eq(memcmp(msg, buf, readbytes), 0)
                      || !TEST_true(SSL_read_ex(clientssl, buf, sizeof(buf),
                                                &readbytes))
                      || !TEST_size_t_eq(readbytes, sizeof(msg))
                      || !TEST_int_eq(memcmp(msg, buf, readbytes), 0))
                  goto end;
          }
      }
  
      /* Writing on the client after sending close_notify shouldn't be possible */
      if (!TEST_false(SSL_write_ex(clientssl, msg, sizeof(msg), &written)))
          goto end;
  
      if (tst < 4) {
          /*
           * For these tests the client has sent close_notify but it has not yet
           * been received by the server. The server has not sent close_notify
           * yet.
           */
          if (!TEST_int_eq(SSL_shutdown(serverssl), 0)
                     /*
                      * Writing on the server after sending close_notify shouldn't
                      * be possible.
                      */
                  || !TEST_false(SSL_write_ex(serverssl, msg, sizeof(msg), &written))
                  || !TEST_int_eq(SSL_shutdown(clientssl), 1)
                  || !TEST_ptr_ne(sess = SSL_get_session(clientssl), NULL)
                  || !TEST_true(SSL_SESSION_is_resumable(sess))
                  || !TEST_int_eq(SSL_shutdown(serverssl), 1))
              goto end;
      } else if (tst == 4 || tst == 5) {
          /*
           * In this test the client has sent close_notify and it has been
           * received by the server which has responded with a close_notify. The
           * client needs to read the close_notify sent by the server.
           */
          if (!TEST_int_eq(SSL_shutdown(clientssl), 1)
                  || !TEST_ptr_ne(sess = SSL_get_session(clientssl), NULL)
                  || !TEST_true(SSL_SESSION_is_resumable(sess)))
              goto end;
      } else {
          /*
           * tst == 6
           *
           * The client has sent close_notify and is expecting a close_notify
           * back, but instead there is application data first. The shutdown
           * should fail with a fatal error.
           */
          if (!TEST_int_eq(SSL_shutdown(clientssl), -1)
                  || !TEST_int_eq(SSL_get_error(clientssl, -1), SSL_ERROR_SSL))
              goto end;
      }
  
      testresult = 1;
  
   end:
      SSL_free(serverssl);
      SSL_free(clientssl);
      SSL_CTX_free(sctx);
      SSL_CTX_free(cctx);
  
      return testresult;
  }
  
  #if !defined(OPENSSL_NO_TLS1_2) || !defined(OSSL_NO_USABLE_TLS1_3)
  static int cert_cb_cnt;
  
  static int cert_cb(SSL *s, void *arg)
  {
      SSL_CTX *ctx = (SSL_CTX *)arg;
      BIO *in = NULL;
      EVP_PKEY *pkey = NULL;
      X509 *x509 = NULL, *rootx = NULL;
      STACK_OF(X509) *chain = NULL;
      char *rootfile = NULL, *ecdsacert = NULL, *ecdsakey = NULL;
      int ret = 0;
  
      if (cert_cb_cnt == 0) {
          /* Suspend the handshake */
          cert_cb_cnt++;
          return -1;
      } else if (cert_cb_cnt == 1) {
          /*
           * Update the SSL_CTX, set the certificate and private key and then
           * continue the handshake normally.
           */
          if (ctx != NULL && !TEST_ptr(SSL_set_SSL_CTX(s, ctx)))
              return 0;
  
          if (!TEST_true(SSL_use_certificate_file(s, cert, SSL_FILETYPE_PEM))
                  || !TEST_true(SSL_use_PrivateKey_file(s, privkey,
                                                        SSL_FILETYPE_PEM))
                  || !TEST_true(SSL_check_private_key(s)))
              return 0;
          cert_cb_cnt++;
          return 1;
      } else if (cert_cb_cnt == 3) {
          int rv;
  
          rootfile = test_mk_file_path(certsdir, "rootcert.pem");
          ecdsacert = test_mk_file_path(certsdir, "server-ecdsa-cert.pem");
          ecdsakey = test_mk_file_path(certsdir, "server-ecdsa-key.pem");
          if (!TEST_ptr(rootfile) || !TEST_ptr(ecdsacert) || !TEST_ptr(ecdsakey))
              goto out;
          chain = sk_X509_new_null();
          if (!TEST_ptr(chain))
              goto out;
          if (!TEST_ptr(in = BIO_new(BIO_s_file()))
                  || !TEST_int_ge(BIO_read_filename(in, rootfile), 0)
                  || !TEST_ptr(rootx = X509_new_ex(libctx, NULL))
                  || !TEST_ptr(PEM_read_bio_X509(in, &rootx, NULL, NULL))
                  || !TEST_true(sk_X509_push(chain, rootx)))
              goto out;
          rootx = NULL;
          BIO_free(in);
          if (!TEST_ptr(in = BIO_new(BIO_s_file()))
                  || !TEST_int_ge(BIO_read_filename(in, ecdsacert), 0)
                  || !TEST_ptr(x509 = X509_new_ex(libctx, NULL))
                  || !TEST_ptr(PEM_read_bio_X509(in, &x509, NULL, NULL)))
              goto out;
          BIO_free(in);
          if (!TEST_ptr(in = BIO_new(BIO_s_file()))
                  || !TEST_int_ge(BIO_read_filename(in, ecdsakey), 0)
                  || !TEST_ptr(pkey = PEM_read_bio_PrivateKey_ex(in, NULL,
                                                                 NULL, NULL,
                                                                 libctx, NULL)))
              goto out;
          rv = SSL_check_chain(s, x509, pkey, chain);
          /*
           * If the cert doesn't show as valid here (e.g., because we don't
           * have any shared sigalgs), then we will not set it, and there will
           * be no certificate at all on the SSL or SSL_CTX.  This, in turn,
           * will cause tls_choose_sigalgs() to fail the connection.
           */
          if ((rv & (CERT_PKEY_VALID | CERT_PKEY_CA_SIGNATURE))
                  == (CERT_PKEY_VALID | CERT_PKEY_CA_SIGNATURE)) {
              if (!SSL_use_cert_and_key(s, x509, pkey, NULL, 1))
                  goto out;
          }
  
          ret = 1;
      }
  
      /* Abort the handshake */
   out:
      OPENSSL_free(ecdsacert);
      OPENSSL_free(ecdsakey);
      OPENSSL_free(rootfile);
      BIO_free(in);
      EVP_PKEY_free(pkey);
      X509_free(x509);
      X509_free(rootx);
      sk_X509_pop_free(chain, X509_free);
      return ret;
  }
  
  /*
   * Test the certificate callback.
   * Test 0: Callback fails
   * Test 1: Success - no SSL_set_SSL_CTX() in the callback
   * Test 2: Success - SSL_set_SSL_CTX() in the callback
   * Test 3: Success - Call SSL_check_chain from the callback
   * Test 4: Failure - SSL_check_chain fails from callback due to bad cert in the
   *                   chain
   * Test 5: Failure - SSL_check_chain fails from callback due to bad ee cert
   */
  static int test_cert_cb_int(int prot, int tst)
  {
      SSL_CTX *cctx = NULL, *sctx = NULL, *snictx = NULL;
      SSL *clientssl = NULL, *serverssl = NULL;
      int testresult = 0, ret;
  
  #ifdef OPENSSL_NO_EC
      /* We use an EC cert in these tests, so we skip in a no-ec build */
      if (tst >= 3)
          return 1;
  #endif
  
      if (!TEST_true(create_ssl_ctx_pair(libctx, TLS_server_method(),
                                         TLS_client_method(),
                                         TLS1_VERSION,
                                         prot,
                                         &sctx, &cctx, NULL, NULL)))
          goto end;
  
      if (tst == 0)
          cert_cb_cnt = -1;
      else if (tst >= 3)
          cert_cb_cnt = 3;
      else
          cert_cb_cnt = 0;
  
      if (tst == 2)
          snictx = SSL_CTX_new(TLS_server_method());
      SSL_CTX_set_cert_cb(sctx, cert_cb, snictx);
  
      if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl, &clientssl,
                                        NULL, NULL)))
          goto end;
  
      if (tst == 4) {
          /*
           * We cause SSL_check_chain() to fail by specifying sig_algs that
           * the chain doesn't meet (the root uses an RSA cert)
           */
          if (!TEST_true(SSL_set1_sigalgs_list(clientssl,
                                               "ecdsa_secp256r1_sha256")))
              goto end;
      } else if (tst == 5) {
          /*
           * We cause SSL_check_chain() to fail by specifying sig_algs that
           * the ee cert doesn't meet (the ee uses an ECDSA cert)
           */
          if (!TEST_true(SSL_set1_sigalgs_list(clientssl,
                             "rsa_pss_rsae_sha256:rsa_pkcs1_sha256")))
              goto end;
      }
  
      ret = create_ssl_connection(serverssl, clientssl, SSL_ERROR_NONE);
      if (!TEST_true(tst == 0 || tst == 4 || tst == 5 ? !ret : ret)
              || (tst > 0
                  && !TEST_int_eq((cert_cb_cnt - 2) * (cert_cb_cnt - 3), 0))) {
          goto end;
      }
  
      testresult = 1;
  
   end:
      SSL_free(serverssl);
      SSL_free(clientssl);
      SSL_CTX_free(sctx);
      SSL_CTX_free(cctx);
      SSL_CTX_free(snictx);
  
      return testresult;
  }
  #endif
  
  static int test_cert_cb(int tst)
  {
      int testresult = 1;
  
  #ifndef OPENSSL_NO_TLS1_2
      testresult &= test_cert_cb_int(TLS1_2_VERSION, tst);
  #endif
  #ifndef OSSL_NO_USABLE_TLS1_3
      testresult &= test_cert_cb_int(TLS1_3_VERSION, tst);
  #endif
  
      return testresult;
  }
  
  static int client_cert_cb(SSL *ssl, X509 **x509, EVP_PKEY **pkey)
  {
      X509 *xcert;
      EVP_PKEY *privpkey;
      BIO *in = NULL;
      BIO *priv_in = NULL;
  
      /* Check that SSL_get0_peer_certificate() returns something sensible */
      if (!TEST_ptr(SSL_get0_peer_certificate(ssl)))
          return 0;
  
      in = BIO_new_file(cert, "r");
      if (!TEST_ptr(in))
          return 0;
  
      if (!TEST_ptr(xcert = X509_new_ex(libctx, NULL))
              || !TEST_ptr(PEM_read_bio_X509(in, &xcert, NULL, NULL))
              || !TEST_ptr(priv_in = BIO_new_file(privkey, "r"))
              || !TEST_ptr(privpkey = PEM_read_bio_PrivateKey_ex(priv_in, NULL,
                                                                 NULL, NULL,
                                                                 libctx, NULL)))
          goto err;
  
      *x509 = xcert;
      *pkey = privpkey;
  
      BIO_free(in);
      BIO_free(priv_in);
      return 1;
  err:
      X509_free(xcert);
      BIO_free(in);
      BIO_free(priv_in);
      return 0;
  }
  
  static int test_client_cert_cb(int tst)
  {
      SSL_CTX *cctx = NULL, *sctx = NULL;
      SSL *clientssl = NULL, *serverssl = NULL;
      int testresult = 0;
  
  #ifdef OPENSSL_NO_TLS1_2
      if (tst == 0)
          return 1;
  #endif
  #ifdef OSSL_NO_USABLE_TLS1_3
      if (tst == 1)
          return 1;
  #endif
  
      if (!TEST_true(create_ssl_ctx_pair(libctx, TLS_server_method(),
                                         TLS_client_method(),
                                         TLS1_VERSION,
                                         tst == 0 ? TLS1_2_VERSION
                                                  : TLS1_3_VERSION,
                                         &sctx, &cctx, cert, privkey)))
          goto end;
  
      /*
       * Test that setting a client_cert_cb results in a client certificate being
       * sent.
       */
      SSL_CTX_set_client_cert_cb(cctx, client_cert_cb);
      SSL_CTX_set_verify(sctx,
                         SSL_VERIFY_PEER | SSL_VERIFY_FAIL_IF_NO_PEER_CERT,
                         verify_cb);
  
      if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl, &clientssl,
                                        NULL, NULL))
              || !TEST_true(create_ssl_connection(serverssl, clientssl,
                                                  SSL_ERROR_NONE)))
          goto end;
  
      testresult = 1;
  
   end:
      SSL_free(serverssl);
      SSL_free(clientssl);
      SSL_CTX_free(sctx);
      SSL_CTX_free(cctx);
  
      return testresult;
  }
  
  #if !defined(OPENSSL_NO_TLS1_2) || !defined(OSSL_NO_USABLE_TLS1_3)
  /*
   * Test setting certificate authorities on both client and server.
   *
   * Test 0: SSL_CTX_set0_CA_list() only
   * Test 1: Both SSL_CTX_set0_CA_list() and SSL_CTX_set_client_CA_list()
   * Test 2: Only SSL_CTX_set_client_CA_list()
   */
  static int test_ca_names_int(int prot, int tst)
  {
      SSL_CTX *cctx = NULL, *sctx = NULL;
      SSL *clientssl = NULL, *serverssl = NULL;
      int testresult = 0;
      size_t i;
      X509_NAME *name[] = { NULL, NULL, NULL, NULL };
      char *strnames[] = { "Jack", "Jill", "John", "Joanne" };
      STACK_OF(X509_NAME) *sk1 = NULL, *sk2 = NULL;
      const STACK_OF(X509_NAME) *sktmp = NULL;
  
      for (i = 0; i < OSSL_NELEM(name); i++) {
          name[i] = X509_NAME_new();
          if (!TEST_ptr(name[i])
                  || !TEST_true(X509_NAME_add_entry_by_txt(name[i], "CN",
                                                           MBSTRING_ASC,
                                                           (unsigned char *)
                                                           strnames[i],
                                                           -1, -1, 0)))
              goto end;
      }
  
      if (!TEST_true(create_ssl_ctx_pair(libctx, TLS_server_method(),
                                         TLS_client_method(),
                                         TLS1_VERSION,
                                         prot,
                                         &sctx, &cctx, cert, privkey)))
          goto end;
  
      SSL_CTX_set_verify(sctx, SSL_VERIFY_PEER, NULL);
  
      if (tst == 0 || tst == 1) {
          if (!TEST_ptr(sk1 = sk_X509_NAME_new_null())
                  || !TEST_true(sk_X509_NAME_push(sk1, X509_NAME_dup(name[0])))
                  || !TEST_true(sk_X509_NAME_push(sk1, X509_NAME_dup(name[1])))
                  || !TEST_ptr(sk2 = sk_X509_NAME_new_null())
                  || !TEST_true(sk_X509_NAME_push(sk2, X509_NAME_dup(name[0])))
                  || !TEST_true(sk_X509_NAME_push(sk2, X509_NAME_dup(name[1]))))
              goto end;
  
          SSL_CTX_set0_CA_list(sctx, sk1);
          SSL_CTX_set0_CA_list(cctx, sk2);
          sk1 = sk2 = NULL;
      }
      if (tst == 1 || tst == 2) {
          if (!TEST_ptr(sk1 = sk_X509_NAME_new_null())
                  || !TEST_true(sk_X509_NAME_push(sk1, X509_NAME_dup(name[2])))
                  || !TEST_true(sk_X509_NAME_push(sk1, X509_NAME_dup(name[3])))
                  || !TEST_ptr(sk2 = sk_X509_NAME_new_null())
                  || !TEST_true(sk_X509_NAME_push(sk2, X509_NAME_dup(name[2])))
                  || !TEST_true(sk_X509_NAME_push(sk2, X509_NAME_dup(name[3]))))
              goto end;
  
          SSL_CTX_set_client_CA_list(sctx, sk1);
          SSL_CTX_set_client_CA_list(cctx, sk2);
          sk1 = sk2 = NULL;
      }
  
      if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl, &clientssl,
                                        NULL, NULL))
              || !TEST_true(create_ssl_connection(serverssl, clientssl,
                                                  SSL_ERROR_NONE)))
          goto end;
  
      /*
       * We only expect certificate authorities to have been sent to the server
       * if we are using TLSv1.3 and SSL_set0_CA_list() was used
       */
      sktmp = SSL_get0_peer_CA_list(serverssl);
      if (prot == TLS1_3_VERSION
              && (tst == 0 || tst == 1)) {
          if (!TEST_ptr(sktmp)
                  || !TEST_int_eq(sk_X509_NAME_num(sktmp), 2)
                  || !TEST_int_eq(X509_NAME_cmp(sk_X509_NAME_value(sktmp, 0),
                                                name[0]), 0)
                  || !TEST_int_eq(X509_NAME_cmp(sk_X509_NAME_value(sktmp, 1),
                                                name[1]), 0))
              goto end;
      } else if (!TEST_ptr_null(sktmp)) {
          goto end;
      }
  
      /*
       * In all tests we expect certificate authorities to have been sent to the
       * client. However, SSL_set_client_CA_list() should override
       * SSL_set0_CA_list()
       */
      sktmp = SSL_get0_peer_CA_list(clientssl);
      if (!TEST_ptr(sktmp)
              || !TEST_int_eq(sk_X509_NAME_num(sktmp), 2)
              || !TEST_int_eq(X509_NAME_cmp(sk_X509_NAME_value(sktmp, 0),
                                            name[tst == 0 ? 0 : 2]), 0)
              || !TEST_int_eq(X509_NAME_cmp(sk_X509_NAME_value(sktmp, 1),
                                            name[tst == 0 ? 1 : 3]), 0))
          goto end;
  
      testresult = 1;
  
   end:
      SSL_free(serverssl);
      SSL_free(clientssl);
      SSL_CTX_free(sctx);
      SSL_CTX_free(cctx);
      for (i = 0; i < OSSL_NELEM(name); i++)
          X509_NAME_free(name[i]);
      sk_X509_NAME_pop_free(sk1, X509_NAME_free);
      sk_X509_NAME_pop_free(sk2, X509_NAME_free);
  
      return testresult;
  }
  #endif
  
  static int test_ca_names(int tst)
  {
      int testresult = 1;
  
  #ifndef OPENSSL_NO_TLS1_2
      testresult &= test_ca_names_int(TLS1_2_VERSION, tst);
  #endif
  #ifndef OSSL_NO_USABLE_TLS1_3
      testresult &= test_ca_names_int(TLS1_3_VERSION, tst);
  #endif
  
      return testresult;
  }
  
  #ifndef OPENSSL_NO_TLS1_2
  static const char *multiblock_cipherlist_data[]=
  {
      "AES128-SHA",
      "AES128-SHA256",
      "AES256-SHA",
      "AES256-SHA256",
  };
  
  /* Reduce the fragment size - so the multiblock test buffer can be small */
  # define MULTIBLOCK_FRAGSIZE 512
  
  static int test_multiblock_write(int test_index)
  {
      static const char *fetchable_ciphers[]=
      {
          "AES-128-CBC-HMAC-SHA1",
          "AES-128-CBC-HMAC-SHA256",
          "AES-256-CBC-HMAC-SHA1",
          "AES-256-CBC-HMAC-SHA256"
      };
      const char *cipherlist = multiblock_cipherlist_data[test_index];
      const SSL_METHOD *smeth = TLS_server_method();
      const SSL_METHOD *cmeth = TLS_client_method();
      int min_version = TLS1_VERSION;
      int max_version = TLS1_2_VERSION; /* Don't select TLS1_3 */
      SSL_CTX *cctx = NULL, *sctx = NULL;
      SSL *clientssl = NULL, *serverssl = NULL;
      int testresult = 0;
  
      /*
       * Choose a buffer large enough to perform a multi-block operation
       * i.e: write_len >= 4 * frag_size
       * 9 * is chosen so that multiple multiblocks are used + some leftover.
       */
      unsigned char msg[MULTIBLOCK_FRAGSIZE * 9];
      unsigned char buf[sizeof(msg)], *p = buf;
      size_t readbytes, written, len;
      EVP_CIPHER *ciph = NULL;
  
      /*
       * Check if the cipher exists before attempting to use it since it only has
       * a hardware specific implementation.
       */
      ciph = EVP_CIPHER_fetch(NULL, fetchable_ciphers[test_index], "");
      if (ciph == NULL) {
          TEST_skip("Multiblock cipher is not available for %s", cipherlist);
          return 1;
      }
      EVP_CIPHER_free(ciph);
  
      /* Set up a buffer with some data that will be sent to the client */
      RAND_bytes(msg, sizeof(msg));
  
      if (!TEST_true(create_ssl_ctx_pair(libctx, smeth, cmeth, min_version,
                                         max_version, &sctx, &cctx, cert,
                                         privkey)))
          goto end;
  
      if (!TEST_true(SSL_CTX_set_max_send_fragment(sctx, MULTIBLOCK_FRAGSIZE)))
          goto end;
  
      if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl, &clientssl,
                                        NULL, NULL)))
              goto end;
  
      /* settings to force it to use AES-CBC-HMAC_SHA */
      SSL_set_options(serverssl, SSL_OP_NO_ENCRYPT_THEN_MAC);
      if (!TEST_true(SSL_CTX_set_cipher_list(cctx, cipherlist)))
         goto end;
  
      if (!TEST_true(create_ssl_connection(serverssl, clientssl, SSL_ERROR_NONE)))
          goto end;
  
      if (!TEST_true(SSL_write_ex(serverssl, msg, sizeof(msg), &written))
          || !TEST_size_t_eq(written, sizeof(msg)))
          goto end;
  
      len = written;
      while (len > 0) {
          if (!TEST_true(SSL_read_ex(clientssl, p, MULTIBLOCK_FRAGSIZE, &readbytes)))
              goto end;
          p += readbytes;
          len -= readbytes;
      }
      if (!TEST_mem_eq(msg, sizeof(msg), buf, sizeof(buf)))
          goto end;
  
      testresult = 1;
  end:
      SSL_free(serverssl);
      SSL_free(clientssl);
      SSL_CTX_free(sctx);
      SSL_CTX_free(cctx);
  
      return testresult;
  }
  #endif /* OPENSSL_NO_TLS1_2 */
  
  static int test_session_timeout(int test)
  {
      /*
       * Test session ordering and timeout
       * Can't explicitly test performance of the new code,
       * but can test to see if the ordering of the sessions
       * are correct, and they they are removed as expected
       */
      SSL_SESSION *early = NULL;
      SSL_SESSION *middle = NULL;
      SSL_SESSION *late = NULL;
      SSL_CTX *ctx;
      int testresult = 0;
      long now = (long)time(NULL);
  #define TIMEOUT 10
  
      if (!TEST_ptr(ctx = SSL_CTX_new_ex(libctx, NULL, TLS_method()))
          || !TEST_ptr(early = SSL_SESSION_new())
          || !TEST_ptr(middle = SSL_SESSION_new())
          || !TEST_ptr(late = SSL_SESSION_new()))
          goto end;
  
      /* assign unique session ids */
      early->session_id_length = SSL3_SSL_SESSION_ID_LENGTH;
      memset(early->session_id, 1, SSL3_SSL_SESSION_ID_LENGTH);
      middle->session_id_length = SSL3_SSL_SESSION_ID_LENGTH;
      memset(middle->session_id, 2, SSL3_SSL_SESSION_ID_LENGTH);
      late->session_id_length = SSL3_SSL_SESSION_ID_LENGTH;
      memset(late->session_id, 3, SSL3_SSL_SESSION_ID_LENGTH);
  
      if (!TEST_int_eq(SSL_CTX_add_session(ctx, early), 1)
          || !TEST_int_eq(SSL_CTX_add_session(ctx, middle), 1)
          || !TEST_int_eq(SSL_CTX_add_session(ctx, late), 1))
          goto end;
  
      /* Make sure they are all added */
      if (!TEST_ptr(early->prev)
          || !TEST_ptr(middle->prev)
          || !TEST_ptr(late->prev))
          goto end;
  
      if (!TEST_int_ne(SSL_SESSION_set_time(early, now - 10), 0)
          || !TEST_int_ne(SSL_SESSION_set_time(middle, now), 0)
          || !TEST_int_ne(SSL_SESSION_set_time(late, now + 10), 0))
          goto end;
  
      if (!TEST_int_ne(SSL_SESSION_set_timeout(early, TIMEOUT), 0)
          || !TEST_int_ne(SSL_SESSION_set_timeout(middle, TIMEOUT), 0)
          || !TEST_int_ne(SSL_SESSION_set_timeout(late, TIMEOUT), 0))
          goto end;
  
      /* Make sure they are all still there */
      if (!TEST_ptr(early->prev)
          || !TEST_ptr(middle->prev)
          || !TEST_ptr(late->prev))
          goto end;
  
      /* Make sure they are in the expected order */
      if (!TEST_ptr_eq(late->next, middle)
          || !TEST_ptr_eq(middle->next, early)
          || !TEST_ptr_eq(early->prev, middle)
          || !TEST_ptr_eq(middle->prev, late))
          goto end;
  
      /* This should remove "early" */
      SSL_CTX_flush_sessions(ctx, now + TIMEOUT - 1);
      if (!TEST_ptr_null(early->prev)
          || !TEST_ptr(middle->prev)
          || !TEST_ptr(late->prev))
          goto end;
  
      /* This should remove "middle" */
      SSL_CTX_flush_sessions(ctx, now + TIMEOUT + 1);
      if (!TEST_ptr_null(early->prev)
          || !TEST_ptr_null(middle->prev)
          || !TEST_ptr(late->prev))
          goto end;
  
      /* This should remove "late" */
      SSL_CTX_flush_sessions(ctx, now + TIMEOUT + 11);
      if (!TEST_ptr_null(early->prev)
          || !TEST_ptr_null(middle->prev)
          || !TEST_ptr_null(late->prev))
          goto end;
  
      /* Add them back in again */
      if (!TEST_int_eq(SSL_CTX_add_session(ctx, early), 1)
          || !TEST_int_eq(SSL_CTX_add_session(ctx, middle), 1)
          || !TEST_int_eq(SSL_CTX_add_session(ctx, late), 1))
          goto end;
  
      /* Make sure they are all added */
      if (!TEST_ptr(early->prev)
          || !TEST_ptr(middle->prev)
          || !TEST_ptr(late->prev))
          goto end;
  
      /* This should remove all of them */
      SSL_CTX_flush_sessions(ctx, 0);
      if (!TEST_ptr_null(early->prev)
          || !TEST_ptr_null(middle->prev)
          || !TEST_ptr_null(late->prev))
          goto end;
  
      (void)SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_UPDATE_TIME
                                           | SSL_CTX_get_session_cache_mode(ctx));
  
      /* make sure |now| is NOT  equal to the current time */
      now -= 10;
      if (!TEST_int_ne(SSL_SESSION_set_time(early, now), 0)
          || !TEST_int_eq(SSL_CTX_add_session(ctx, early), 1)
          || !TEST_long_ne(SSL_SESSION_get_time(early), now))
          goto end;
  
      testresult = 1;
   end:
      SSL_CTX_free(ctx);
      SSL_SESSION_free(early);
      SSL_SESSION_free(middle);
      SSL_SESSION_free(late);
      return testresult;
  }
  
  /*
   * Test 0: Client sets servername and server acknowledges it (TLSv1.2)
   * Test 1: Client sets servername and server does not acknowledge it (TLSv1.2)
   * Test 2: Client sets inconsistent servername on resumption (TLSv1.2)
   * Test 3: Client does not set servername on initial handshake (TLSv1.2)
   * Test 4: Client does not set servername on resumption handshake (TLSv1.2)
   * Test 5: Client sets servername and server acknowledges it (TLSv1.3)
   * Test 6: Client sets servername and server does not acknowledge it (TLSv1.3)
   * Test 7: Client sets inconsistent servername on resumption (TLSv1.3)
   * Test 8: Client does not set servername on initial handshake(TLSv1.3)
   * Test 9: Client does not set servername on resumption handshake (TLSv1.3)
   */
  static int test_servername(int tst)
  {
      SSL_CTX *cctx = NULL, *sctx = NULL;
      SSL *clientssl = NULL, *serverssl = NULL;
      int testresult = 0;
      SSL_SESSION *sess = NULL;
      const char *sexpectedhost = NULL, *cexpectedhost = NULL;
  
  #ifdef OPENSSL_NO_TLS1_2
      if (tst <= 4)
          return 1;
  #endif
  #ifdef OSSL_NO_USABLE_TLS1_3
      if (tst >= 5)
          return 1;
  #endif
  
      if (!TEST_true(create_ssl_ctx_pair(libctx, TLS_server_method(),
                                         TLS_client_method(),
                                         TLS1_VERSION,
                                         (tst <= 4) ? TLS1_2_VERSION
                                                    : TLS1_3_VERSION,
                                         &sctx, &cctx, cert, privkey))
              || !TEST_true(create_ssl_objects(sctx, cctx, &serverssl, &clientssl,
                                               NULL, NULL)))
          goto end;
  
      if (tst != 1 && tst != 6) {
          if (!TEST_true(SSL_CTX_set_tlsext_servername_callback(sctx,
                                                                hostname_cb)))
              goto end;
      }
  
      if (tst != 3 && tst != 8) {
          if (!TEST_true(SSL_set_tlsext_host_name(clientssl, "goodhost")))
              goto end;
          sexpectedhost = cexpectedhost = "goodhost";
      }
  
      if (!TEST_true(create_ssl_connection(serverssl, clientssl, SSL_ERROR_NONE)))
          goto end;
  
      if (!TEST_str_eq(SSL_get_servername(clientssl, TLSEXT_NAMETYPE_host_name),
                       cexpectedhost)
              || !TEST_str_eq(SSL_get_servername(serverssl,
                                                 TLSEXT_NAMETYPE_host_name),
                              sexpectedhost))
          goto end;
  
      /* Now repeat with a resumption handshake */
  
      if (!TEST_int_eq(SSL_shutdown(clientssl), 0)
              || !TEST_ptr_ne(sess = SSL_get1_session(clientssl), NULL)
              || !TEST_true(SSL_SESSION_is_resumable(sess))
              || !TEST_int_eq(SSL_shutdown(serverssl), 0))
          goto end;
  
      SSL_free(clientssl);
      SSL_free(serverssl);
      clientssl = serverssl = NULL;
  
      if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl, &clientssl, NULL,
                                        NULL)))
          goto end;
  
      if (!TEST_true(SSL_set_session(clientssl, sess)))
          goto end;
  
      sexpectedhost = cexpectedhost = "goodhost";
      if (tst == 2 || tst == 7) {
          /* Set an inconsistent hostname */
          if (!TEST_true(SSL_set_tlsext_host_name(clientssl, "altgoodhost")))
              goto end;
          /*
           * In TLSv1.2 we expect the hostname from the original handshake, in
           * TLSv1.3 we expect the hostname from this handshake
           */
          if (tst == 7)
              sexpectedhost = cexpectedhost = "altgoodhost";
  
          if (!TEST_str_eq(SSL_get_servername(clientssl,
                                              TLSEXT_NAMETYPE_host_name),
                           "altgoodhost"))
              goto end;
      } else if (tst == 4 || tst == 9) {
          /*
           * A TLSv1.3 session does not associate a session with a servername,
           * but a TLSv1.2 session does.
           */
          if (tst == 9)
              sexpectedhost = cexpectedhost = NULL;
  
          if (!TEST_str_eq(SSL_get_servername(clientssl,
                                              TLSEXT_NAMETYPE_host_name),
                           cexpectedhost))
              goto end;
      } else {
          if (!TEST_true(SSL_set_tlsext_host_name(clientssl, "goodhost")))
              goto end;
          /*
           * In a TLSv1.2 resumption where the hostname was not acknowledged
           * we expect the hostname on the server to be empty. On the client we
           * return what was requested in this case.
           *
           * Similarly if the client didn't set a hostname on an original TLSv1.2
           * session but is now, the server hostname will be empty, but the client
           * is as we set it.
           */
          if (tst == 1 || tst == 3)
              sexpectedhost = NULL;
  
          if (!TEST_str_eq(SSL_get_servername(clientssl,
                                              TLSEXT_NAMETYPE_host_name),
                           "goodhost"))
              goto end;
      }
  
      if (!TEST_true(create_ssl_connection(serverssl, clientssl, SSL_ERROR_NONE)))
          goto end;
  
      if (!TEST_true(SSL_session_reused(clientssl))
              || !TEST_true(SSL_session_reused(serverssl))
              || !TEST_str_eq(SSL_get_servername(clientssl,
                                                 TLSEXT_NAMETYPE_host_name),
                              cexpectedhost)
              || !TEST_str_eq(SSL_get_servername(serverssl,
                                                 TLSEXT_NAMETYPE_host_name),
                              sexpectedhost))
          goto end;
  
      testresult = 1;
  
   end:
      SSL_SESSION_free(sess);
      SSL_free(serverssl);
      SSL_free(clientssl);
      SSL_CTX_free(sctx);
      SSL_CTX_free(cctx);
  
      return testresult;
  }
  
  #if !defined(OPENSSL_NO_EC) \
      && (!defined(OSSL_NO_USABLE_TLS1_3) || !defined(OPENSSL_NO_TLS1_2))
  /*
   * Test that if signature algorithms are not available, then we do not offer or
   * accept them.
   * Test 0: Two RSA sig algs available: both RSA sig algs shared
   * Test 1: The client only has SHA2-256: only SHA2-256 algorithms shared
   * Test 2: The server only has SHA2-256: only SHA2-256 algorithms shared
   * Test 3: An RSA and an ECDSA sig alg available: both sig algs shared
   * Test 4: The client only has an ECDSA sig alg: only ECDSA algorithms shared
   * Test 5: The server only has an ECDSA sig alg: only ECDSA algorithms shared
   */
  static int test_sigalgs_available(int idx)
  {
      SSL_CTX *cctx = NULL, *sctx = NULL;
      SSL *clientssl = NULL, *serverssl = NULL;
      int testresult = 0;
      OSSL_LIB_CTX *tmpctx = OSSL_LIB_CTX_new();
      OSSL_LIB_CTX *clientctx = libctx, *serverctx = libctx;
      OSSL_PROVIDER *filterprov = NULL;
      int sig, hash;
  
      if (!TEST_ptr(tmpctx))
          goto end;
  
      if (idx != 0 && idx != 3) {
          if (!TEST_true(OSSL_PROVIDER_add_builtin(tmpctx, "filter",
                                                   filter_provider_init)))
              goto end;
  
          filterprov = OSSL_PROVIDER_load(tmpctx, "filter");
          if (!TEST_ptr(filterprov))
              goto end;
  
          if (idx < 3) {
              /*
               * Only enable SHA2-256 so rsa_pss_rsae_sha384 should not be offered
               * or accepted for the peer that uses this libctx. Note that libssl
               * *requires* SHA2-256 to be available so we cannot disable that. We
               * also need SHA1 for our certificate.
               */
              if (!TEST_true(filter_provider_set_filter(OSSL_OP_DIGEST,
                                                        "SHA2-256:SHA1")))
                  goto end;
          } else {
              if (!TEST_true(filter_provider_set_filter(OSSL_OP_SIGNATURE,
                                                        "ECDSA"))
                      || !TEST_true(filter_provider_set_filter(OSSL_OP_KEYMGMT,
                                                               "EC:X25519:X448")))
                  goto end;
          }
  
          if (idx == 1 || idx == 4)
              clientctx = tmpctx;
          else
              serverctx = tmpctx;
      }
  
      cctx = SSL_CTX_new_ex(clientctx, NULL, TLS_client_method());
      sctx = SSL_CTX_new_ex(serverctx, NULL, TLS_server_method());
      if (!TEST_ptr(cctx) || !TEST_ptr(sctx))
          goto end;
  
      if (idx != 5) {
          if (!TEST_true(create_ssl_ctx_pair(libctx, TLS_server_method(),
                                             TLS_client_method(),
                                             TLS1_VERSION,
                                             0,
                                             &sctx, &cctx, cert, privkey)))
              goto end;
      } else {
          if (!TEST_true(create_ssl_ctx_pair(libctx, TLS_server_method(),
                                             TLS_client_method(),
                                             TLS1_VERSION,
                                             0,
                                             &sctx, &cctx, cert2, privkey2)))
              goto end;
      }
  
      /* Ensure we only use TLSv1.2 ciphersuites based on SHA256 */
      if (idx < 4) {
          if (!TEST_true(SSL_CTX_set_cipher_list(cctx,
                                                 "ECDHE-RSA-AES128-GCM-SHA256")))
              goto end;
      } else {
          if (!TEST_true(SSL_CTX_set_cipher_list(cctx,
                                                 "ECDHE-ECDSA-AES128-GCM-SHA256")))
              goto end;
      }
  
      if (idx < 3) {
          if (!SSL_CTX_set1_sigalgs_list(cctx,
                                         "rsa_pss_rsae_sha384"
                                         ":rsa_pss_rsae_sha256")
                  || !SSL_CTX_set1_sigalgs_list(sctx,
                                                "rsa_pss_rsae_sha384"
                                                ":rsa_pss_rsae_sha256"))
              goto end;
      } else {
          if (!SSL_CTX_set1_sigalgs_list(cctx, "rsa_pss_rsae_sha256:ECDSA+SHA256")
                  || !SSL_CTX_set1_sigalgs_list(sctx,
                                                "rsa_pss_rsae_sha256:ECDSA+SHA256"))
              goto end;
      }
  
      if (idx != 5
          && (!TEST_int_eq(SSL_CTX_use_certificate_file(sctx, cert2,
                                                        SSL_FILETYPE_PEM), 1)
              || !TEST_int_eq(SSL_CTX_use_PrivateKey_file(sctx,
                                                          privkey2,
                                                          SSL_FILETYPE_PEM), 1)
              || !TEST_int_eq(SSL_CTX_check_private_key(sctx), 1)))
          goto end;
  
      if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl, &clientssl,
                                        NULL, NULL)))
          goto end;
  
      if (!TEST_true(create_ssl_connection(serverssl, clientssl, SSL_ERROR_NONE)))
          goto end;
  
      /* For tests 0 and 3 we expect 2 shared sigalgs, otherwise exactly 1 */
      if (!TEST_int_eq(SSL_get_shared_sigalgs(serverssl, 0, &sig, &hash, NULL,
                                              NULL, NULL),
                       (idx == 0 || idx == 3) ? 2 : 1))
          goto end;
  
      if (!TEST_int_eq(hash, idx == 0 ? NID_sha384 : NID_sha256))
          goto end;
  
      if (!TEST_int_eq(sig, (idx == 4 || idx == 5) ? EVP_PKEY_EC
                                                   : NID_rsassaPss))
          goto end;
  
      testresult = filter_provider_check_clean_finish();
  
   end:
      SSL_free(serverssl);
      SSL_free(clientssl);
      SSL_CTX_free(sctx);
      SSL_CTX_free(cctx);
      OSSL_PROVIDER_unload(filterprov);
      OSSL_LIB_CTX_free(tmpctx);
  
      return testresult;
  }
  #endif /*
          * !defined(OPENSSL_NO_EC) \
          * && (!defined(OSSL_NO_USABLE_TLS1_3) || !defined(OPENSSL_NO_TLS1_2))
          */
  
  #ifndef OPENSSL_NO_TLS1_3
  /* This test can run in TLSv1.3 even if ec and dh are disabled */
  static int test_pluggable_group(int idx)
  {
      SSL_CTX *cctx = NULL, *sctx = NULL;
      SSL *clientssl = NULL, *serverssl = NULL;
      int testresult = 0;
      OSSL_PROVIDER *tlsprov = OSSL_PROVIDER_load(libctx, "tls-provider");
      /* Check that we are not impacted by a provider without any groups */
      OSSL_PROVIDER *legacyprov = OSSL_PROVIDER_load(libctx, "legacy");
      const char *group_name = idx == 0 ? "xorgroup" : "xorkemgroup";
  
      if (!TEST_ptr(tlsprov))
          goto end;
  
      if (legacyprov == NULL) {
          /*
           * In this case we assume we've been built with "no-legacy" and skip
           * this test (there is no OPENSSL_NO_LEGACY)
           */
          testresult = 1;
          goto end;
      }
  
      if (!TEST_true(create_ssl_ctx_pair(libctx, TLS_server_method(),
                                         TLS_client_method(),
                                         TLS1_3_VERSION,
                                         TLS1_3_VERSION,
                                         &sctx, &cctx, cert, privkey))
              || !TEST_true(create_ssl_objects(sctx, cctx, &serverssl, &clientssl,
                                               NULL, NULL)))
          goto end;
  
      if (!TEST_true(SSL_set1_groups_list(serverssl, group_name))
              || !TEST_true(SSL_set1_groups_list(clientssl, group_name)))
          goto end;
  
      if (!TEST_true(create_ssl_connection(serverssl, clientssl, SSL_ERROR_NONE)))
          goto end;
  
      if (!TEST_str_eq(group_name,
                       SSL_group_to_name(serverssl, SSL_get_shared_group(serverssl, 0))))
          goto end;
  
      testresult = 1;
  
   end:
      SSL_free(serverssl);
      SSL_free(clientssl);
      SSL_CTX_free(sctx);
      SSL_CTX_free(cctx);
      OSSL_PROVIDER_unload(tlsprov);
      OSSL_PROVIDER_unload(legacyprov);
  
      return testresult;
  }
  #endif
  
  #ifndef OPENSSL_NO_TLS1_2
  static int test_ssl_dup(void)
  {
      SSL_CTX *cctx = NULL, *sctx = NULL;
      SSL *clientssl = NULL, *serverssl = NULL, *client2ssl = NULL;
      int testresult = 0;
      BIO *rbio = NULL, *wbio = NULL;
  
      if (!TEST_true(create_ssl_ctx_pair(libctx, TLS_server_method(),
                                         TLS_client_method(),
                                         0,
                                         0,
                                         &sctx, &cctx, cert, privkey)))
          goto end;
  
      if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl, &clientssl,
                                               NULL, NULL)))
          goto end;
  
      if (!TEST_true(SSL_set_min_proto_version(clientssl, TLS1_2_VERSION))
              || !TEST_true(SSL_set_max_proto_version(clientssl, TLS1_2_VERSION)))
          goto end;
  
      client2ssl = SSL_dup(clientssl);
      rbio = SSL_get_rbio(clientssl);
      if (!TEST_ptr(rbio)
              || !TEST_true(BIO_up_ref(rbio)))
          goto end;
      SSL_set0_rbio(client2ssl, rbio);
      rbio = NULL;
  
      wbio = SSL_get_wbio(clientssl);
      if (!TEST_ptr(wbio) || !TEST_true(BIO_up_ref(wbio)))
          goto end;
      SSL_set0_wbio(client2ssl, wbio);
      rbio = NULL;
  
      if (!TEST_ptr(client2ssl)
                 /* Handshake not started so pointers should be different */
              || !TEST_ptr_ne(clientssl, client2ssl))
          goto end;
  
      if (!TEST_int_eq(SSL_get_min_proto_version(client2ssl), TLS1_2_VERSION)
              || !TEST_int_eq(SSL_get_max_proto_version(client2ssl), TLS1_2_VERSION))
          goto end;
  
      if (!TEST_true(create_ssl_connection(serverssl, client2ssl, SSL_ERROR_NONE)))
          goto end;
  
      SSL_free(clientssl);
      clientssl = SSL_dup(client2ssl);
      if (!TEST_ptr(clientssl)
                 /* Handshake has finished so pointers should be the same */
              || !TEST_ptr_eq(clientssl, client2ssl))
          goto end;
  
      testresult = 1;
  
   end:
      SSL_free(serverssl);
      SSL_free(clientssl);
      SSL_free(client2ssl);
      SSL_CTX_free(sctx);
      SSL_CTX_free(cctx);
  
      return testresult;
  }
  
  # ifndef OPENSSL_NO_DH
  
  static EVP_PKEY *tmp_dh_params = NULL;
  
  /* Helper function for the test_set_tmp_dh() tests */
  static EVP_PKEY *get_tmp_dh_params(void)
  {
      if (tmp_dh_params == NULL) {
          BIGNUM *p = NULL;
          OSSL_PARAM_BLD *tmpl = NULL;
          EVP_PKEY_CTX *pctx = NULL;
          OSSL_PARAM *params = NULL;
          EVP_PKEY *dhpkey = NULL;
  
          p = BN_get_rfc3526_prime_2048(NULL);
          if (!TEST_ptr(p))
              goto end;
  
          pctx = EVP_PKEY_CTX_new_from_name(libctx, "DH", NULL);
          if (!TEST_ptr(pctx)
                  || !TEST_true(EVP_PKEY_fromdata_init(pctx)))
              goto end;
  
          tmpl = OSSL_PARAM_BLD_new();
          if (!TEST_ptr(tmpl)
                  || !TEST_true(OSSL_PARAM_BLD_push_BN(tmpl,
                                                          OSSL_PKEY_PARAM_FFC_P,
                                                          p))
                  || !TEST_true(OSSL_PARAM_BLD_push_uint(tmpl,
                                                          OSSL_PKEY_PARAM_FFC_G,
                                                          2)))
              goto end;
  
          params = OSSL_PARAM_BLD_to_param(tmpl);
          if (!TEST_ptr(params)
                  || !TEST_true(EVP_PKEY_fromdata(pctx, &dhpkey,
                                                  EVP_PKEY_KEY_PARAMETERS, params)))
              goto end;
  
          tmp_dh_params = dhpkey;
      end:
          BN_free(p);
          EVP_PKEY_CTX_free(pctx);
          OSSL_PARAM_BLD_free(tmpl);
          OSSL_PARAM_free(params);
      }
  
      if (tmp_dh_params != NULL && !EVP_PKEY_up_ref(tmp_dh_params))
          return NULL;
  
      return tmp_dh_params;
  }
  
  #  ifndef OPENSSL_NO_DEPRECATED_3_0
  /* Callback used by test_set_tmp_dh() */
  static DH *tmp_dh_callback(SSL *s, int is_export, int keylen)
  {
      EVP_PKEY *dhpkey = get_tmp_dh_params();
      DH *ret = NULL;
  
      if (!TEST_ptr(dhpkey))
          return NULL;
  
      /*
       * libssl does not free the returned DH, so we free it now knowing that even
       * after we free dhpkey, there will still be a reference to the owning
       * EVP_PKEY in tmp_dh_params, and so the DH object will live for the length
       * of time we need it for.
       */
      ret = EVP_PKEY_get1_DH(dhpkey);
      DH_free(ret);
  
      EVP_PKEY_free(dhpkey);
  
      return ret;
  }
  #  endif
  
  /*
   * Test the various methods for setting temporary DH parameters
   *
   * Test  0: Default (no auto) setting
   * Test  1: Explicit SSL_CTX auto off
   * Test  2: Explicit SSL auto off
   * Test  3: Explicit SSL_CTX auto on
   * Test  4: Explicit SSL auto on
   * Test  5: Explicit SSL_CTX auto off, custom DH params via EVP_PKEY
   * Test  6: Explicit SSL auto off, custom DH params via EVP_PKEY
   *
   * The following are testing deprecated APIs, so we only run them if available
   * Test  7: Explicit SSL_CTX auto off, custom DH params via DH
   * Test  8: Explicit SSL auto off, custom DH params via DH
   * Test  9: Explicit SSL_CTX auto off, custom DH params via callback
   * Test 10: Explicit SSL auto off, custom DH params via callback
   */
  static int test_set_tmp_dh(int idx)
  {
      SSL_CTX *cctx = NULL, *sctx = NULL;
      SSL *clientssl = NULL, *serverssl = NULL;
      int testresult = 0;
      int dhauto = (idx == 3 || idx == 4) ? 1 : 0;
      int expected = (idx <= 2) ? 0 : 1;
      EVP_PKEY *dhpkey = NULL;
  #  ifndef OPENSSL_NO_DEPRECATED_3_0
      DH *dh = NULL;
  #  else
  
      if (idx >= 7)
          return 1;
  #  endif
  
      if (idx >= 5 && idx <= 8) {
          dhpkey = get_tmp_dh_params();
          if (!TEST_ptr(dhpkey))
              goto end;
      }
  #  ifndef OPENSSL_NO_DEPRECATED_3_0
      if (idx == 7 || idx == 8) {
          dh = EVP_PKEY_get1_DH(dhpkey);
          if (!TEST_ptr(dh))
              goto end;
      }
  #  endif
  
      if (!TEST_true(create_ssl_ctx_pair(libctx, TLS_server_method(),
                                         TLS_client_method(),
                                         0,
                                         0,
                                         &sctx, &cctx, cert, privkey)))
          goto end;
  
      if ((idx & 1) == 1) {
          if (!TEST_true(SSL_CTX_set_dh_auto(sctx, dhauto)))
              goto end;
      }
  
      if (idx == 5) {
          if (!TEST_true(SSL_CTX_set0_tmp_dh_pkey(sctx, dhpkey)))
              goto end;
          dhpkey = NULL;
      }
  #  ifndef OPENSSL_NO_DEPRECATED_3_0
      else if (idx == 7) {
          if (!TEST_true(SSL_CTX_set_tmp_dh(sctx, dh)))
              goto end;
      } else if (idx == 9) {
          SSL_CTX_set_tmp_dh_callback(sctx, tmp_dh_callback);
      }
  #  endif
  
      if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl, &clientssl,
                                        NULL, NULL)))
          goto end;
  
      if ((idx & 1) == 0 && idx != 0) {
          if (!TEST_true(SSL_set_dh_auto(serverssl, dhauto)))
              goto end;
      }
      if (idx == 6) {
          if (!TEST_true(SSL_set0_tmp_dh_pkey(serverssl, dhpkey)))
              goto end;
          dhpkey = NULL;
      }
  #  ifndef OPENSSL_NO_DEPRECATED_3_0
      else if (idx == 8) {
          if (!TEST_true(SSL_set_tmp_dh(serverssl, dh)))
              goto end;
      } else if (idx == 10) {
          SSL_set_tmp_dh_callback(serverssl, tmp_dh_callback);
      }
  #  endif
  
      if (!TEST_true(SSL_set_min_proto_version(serverssl, TLS1_2_VERSION))
              || !TEST_true(SSL_set_max_proto_version(serverssl, TLS1_2_VERSION))
              || !TEST_true(SSL_set_cipher_list(serverssl, "DHE-RSA-AES128-SHA")))
          goto end;
  
      /*
       * If autoon then we should succeed. Otherwise we expect failure because
       * there are no parameters
       */
      if (!TEST_int_eq(create_ssl_connection(serverssl, clientssl,
                                             SSL_ERROR_NONE), expected))
          goto end;
  
      testresult = 1;
  
   end:
  #  ifndef OPENSSL_NO_DEPRECATED_3_0
      DH_free(dh);
  #  endif
      SSL_free(serverssl);
      SSL_free(clientssl);
      SSL_CTX_free(sctx);
      SSL_CTX_free(cctx);
      EVP_PKEY_free(dhpkey);
  
      return testresult;
  }
  
  /*
   * Test the auto DH keys are appropriately sized
   */
  static int test_dh_auto(int idx)
  {
      SSL_CTX *cctx = SSL_CTX_new_ex(libctx, NULL, TLS_client_method());
      SSL_CTX *sctx = SSL_CTX_new_ex(libctx, NULL, TLS_server_method());
      SSL *clientssl = NULL, *serverssl = NULL;
      int testresult = 0;
      EVP_PKEY *tmpkey = NULL;
      char *thiscert = NULL, *thiskey = NULL;
      size_t expdhsize = 0;
      const char *ciphersuite = "DHE-RSA-AES128-SHA";
  
      if (!TEST_ptr(sctx) || !TEST_ptr(cctx))
          goto end;
  
      switch (idx) {
      case 0:
          /* The FIPS provider doesn't support this DH size - so we ignore it */
          if (is_fips) {
              testresult = 1;
              goto end;
          }
          thiscert = cert1024;
          thiskey = privkey1024;
          expdhsize = 1024;
          SSL_CTX_set_security_level(sctx, 1);
          SSL_CTX_set_security_level(cctx, 1);
          break;
      case 1:
          /* 2048 bit prime */
          thiscert = cert;
          thiskey = privkey;
          expdhsize = 2048;
          break;
      case 2:
          thiscert = cert3072;
          thiskey = privkey3072;
          expdhsize = 3072;
          break;
      case 3:
          thiscert = cert4096;
          thiskey = privkey4096;
          expdhsize = 4096;
          break;
      case 4:
          thiscert = cert8192;
          thiskey = privkey8192;
          expdhsize = 8192;
          break;
      /* No certificate cases */
      case 5:
          /* The FIPS provider doesn't support this DH size - so we ignore it */
          if (is_fips) {
              testresult = 1;
              goto end;
          }
          ciphersuite = "ADH-AES128-SHA256:@SECLEVEL=0";
          expdhsize = 1024;
          break;
      case 6:
          ciphersuite = "ADH-AES256-SHA256:@SECLEVEL=0";
          expdhsize = 3072;
          break;
      default:
          TEST_error("Invalid text index");
          goto end;
      }
  
      if (!TEST_true(create_ssl_ctx_pair(libctx, NULL,
                                         NULL,
                                         0,
                                         0,
                                         &sctx, &cctx, thiscert, thiskey)))
          goto end;
  
      if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl, &clientssl,
                                        NULL, NULL)))
          goto end;
  
      if (!TEST_true(SSL_set_dh_auto(serverssl, 1))
              || !TEST_true(SSL_set_min_proto_version(serverssl, TLS1_2_VERSION))
              || !TEST_true(SSL_set_max_proto_version(serverssl, TLS1_2_VERSION))
              || !TEST_true(SSL_set_cipher_list(serverssl, ciphersuite))
              || !TEST_true(SSL_set_cipher_list(clientssl, ciphersuite)))
          goto end;
  
      /*
       * Send the server's first flight. At this point the server has created the
       * temporary DH key but hasn't finished using it yet. Once used it is
       * removed, so we cannot test it.
       */
      if (!TEST_int_le(SSL_connect(clientssl), 0)
              || !TEST_int_le(SSL_accept(serverssl), 0))
          goto end;
  
      if (!TEST_int_gt(SSL_get_tmp_key(serverssl, &tmpkey), 0))
          goto end;
      if (!TEST_size_t_eq(EVP_PKEY_get_bits(tmpkey), expdhsize))
          goto end;
  
      if (!TEST_true(create_ssl_connection(serverssl, clientssl, SSL_ERROR_NONE)))
          goto end;
  
      testresult = 1;
  
   end:
      SSL_free(serverssl);
      SSL_free(clientssl);
      SSL_CTX_free(sctx);
      SSL_CTX_free(cctx);
      EVP_PKEY_free(tmpkey);
  
      return testresult;
  
  }
  # endif /* OPENSSL_NO_DH */
  #endif /* OPENSSL_NO_TLS1_2 */
  
  #ifndef OSSL_NO_USABLE_TLS1_3
  /*
   * Test that setting an SNI callback works with TLSv1.3. Specifically we check
   * that it works even without a certificate configured for the original
   * SSL_CTX
   */
  static int test_sni_tls13(void)
  {
      SSL_CTX *cctx = NULL, *sctx = NULL, *sctx2 = NULL;
      SSL *clientssl = NULL, *serverssl = NULL;
      int testresult = 0;
  
      /* Reset callback counter */
      snicb = 0;
  
      /* Create an initial SSL_CTX with no certificate configured */
      sctx = SSL_CTX_new_ex(libctx, NULL, TLS_server_method());
      if (!TEST_ptr(sctx))
          goto end;
      /* Require TLSv1.3 as a minimum */
      if (!TEST_true(create_ssl_ctx_pair(libctx, TLS_server_method(),
                                         TLS_client_method(), TLS1_3_VERSION, 0,
                                         &sctx2, &cctx, cert, privkey)))
          goto end;
  
      /* Set up SNI */
      if (!TEST_true(SSL_CTX_set_tlsext_servername_callback(sctx, sni_cb))
              || !TEST_true(SSL_CTX_set_tlsext_servername_arg(sctx, sctx2)))
          goto end;
  
      /*
       * Connection should still succeed because the final SSL_CTX has the right
       * certificates configured.
       */
      if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl,
                                        &clientssl, NULL, NULL))
              || !TEST_true(create_ssl_connection(serverssl, clientssl,
                                                  SSL_ERROR_NONE)))
          goto end;
  
      /* We should have had the SNI callback called exactly once */
      if (!TEST_int_eq(snicb, 1))
          goto end;
  
      testresult = 1;
  
  end:
      SSL_free(serverssl);
      SSL_free(clientssl);
      SSL_CTX_free(sctx2);
      SSL_CTX_free(sctx);
      SSL_CTX_free(cctx);
      return testresult;
  }
  #endif
  /*
   * Test that setting an ALPN does not violate RFC
   */
  static int test_set_alpn(void)
  {
      SSL_CTX *ctx = NULL;
      SSL *ssl = NULL;
      int testresult = 0;
  
      unsigned char bad0[] = { 0x00, 'b', 'a', 'd' };
      unsigned char good[] = { 0x04, 'g', 'o', 'o', 'd' };
      unsigned char bad1[] = { 0x01, 'b', 'a', 'd' };
      unsigned char bad2[] = { 0x03, 'b', 'a', 'd', 0x00};
      unsigned char bad3[] = { 0x03, 'b', 'a', 'd', 0x01, 'b', 'a', 'd'};
      unsigned char bad4[] = { 0x03, 'b', 'a', 'd', 0x06, 'b', 'a', 'd'};
  
      /* Create an initial SSL_CTX with no certificate configured */
      ctx = SSL_CTX_new_ex(libctx, NULL, TLS_server_method());
      if (!TEST_ptr(ctx))
          goto end;
  
      /* the set_alpn functions return 0 (false) on success, non-zero (true) on failure */
      if (!TEST_false(SSL_CTX_set_alpn_protos(ctx, NULL, 2)))
          goto end;
      if (!TEST_false(SSL_CTX_set_alpn_protos(ctx, good, 0)))
          goto end;
      if (!TEST_false(SSL_CTX_set_alpn_protos(ctx, good, sizeof(good))))
          goto end;
      if (!TEST_true(SSL_CTX_set_alpn_protos(ctx, good, 1)))
          goto end;
      if (!TEST_true(SSL_CTX_set_alpn_protos(ctx, bad0, sizeof(bad0))))
          goto end;
      if (!TEST_true(SSL_CTX_set_alpn_protos(ctx, bad1, sizeof(bad1))))
          goto end;
      if (!TEST_true(SSL_CTX_set_alpn_protos(ctx, bad2, sizeof(bad2))))
          goto end;
      if (!TEST_true(SSL_CTX_set_alpn_protos(ctx, bad3, sizeof(bad3))))
          goto end;
      if (!TEST_true(SSL_CTX_set_alpn_protos(ctx, bad4, sizeof(bad4))))
          goto end;
  
      ssl = SSL_new(ctx);
      if (!TEST_ptr(ssl))
          goto end;
  
      if (!TEST_false(SSL_set_alpn_protos(ssl, NULL, 2)))
          goto end;
      if (!TEST_false(SSL_set_alpn_protos(ssl, good, 0)))
          goto end;
      if (!TEST_false(SSL_set_alpn_protos(ssl, good, sizeof(good))))
          goto end;
      if (!TEST_true(SSL_set_alpn_protos(ssl, good, 1)))
          goto end;
      if (!TEST_true(SSL_set_alpn_protos(ssl, bad0, sizeof(bad0))))
          goto end;
      if (!TEST_true(SSL_set_alpn_protos(ssl, bad1, sizeof(bad1))))
          goto end;
      if (!TEST_true(SSL_set_alpn_protos(ssl, bad2, sizeof(bad2))))
          goto end;
      if (!TEST_true(SSL_set_alpn_protos(ssl, bad3, sizeof(bad3))))
          goto end;
      if (!TEST_true(SSL_set_alpn_protos(ssl, bad4, sizeof(bad4))))
          goto end;
  
      testresult = 1;
  
  end:
      SSL_free(ssl);
      SSL_CTX_free(ctx);
      return testresult;
  }
  
  static int test_inherit_verify_param(void)
  {
      int testresult = 0;
  
      SSL_CTX *ctx = NULL;
      X509_VERIFY_PARAM *cp = NULL;
      SSL *ssl = NULL;
      X509_VERIFY_PARAM *sp = NULL;
      int hostflags = X509_CHECK_FLAG_NEVER_CHECK_SUBJECT;
  
      ctx = SSL_CTX_new_ex(libctx, NULL, TLS_server_method());
      if (!TEST_ptr(ctx))
          goto end;
  
      cp = SSL_CTX_get0_param(ctx);
      if (!TEST_ptr(cp))
          goto end;
      if (!TEST_int_eq(X509_VERIFY_PARAM_get_hostflags(cp), 0))
          goto end;
  
      X509_VERIFY_PARAM_set_hostflags(cp, hostflags);
  
      ssl = SSL_new(ctx);
      if (!TEST_ptr(ssl))
          goto end;
  
      sp = SSL_get0_param(ssl);
      if (!TEST_ptr(sp))
          goto end;
      if (!TEST_int_eq(X509_VERIFY_PARAM_get_hostflags(sp), hostflags))
          goto end;
  
      testresult = 1;
  
   end:
      SSL_free(ssl);
      SSL_CTX_free(ctx);
  
      return testresult;
  }
  
  OPT_TEST_DECLARE_USAGE("certfile privkeyfile srpvfile tmpfile provider config\n")
  
  int setup_tests(void)
  {
      char *modulename;
      char *configfile;
  
      libctx = OSSL_LIB_CTX_new();
      if (!TEST_ptr(libctx))
          return 0;
  
      defctxnull = OSSL_PROVIDER_load(NULL, "null");
  
      /*
       * Verify that the default and fips providers in the default libctx are not
       * available
       */
      if (!TEST_false(OSSL_PROVIDER_available(NULL, "default"))
              || !TEST_false(OSSL_PROVIDER_available(NULL, "fips")))
          return 0;
  
      if (!test_skip_common_options()) {
          TEST_error("Error parsing test options\n");
          return 0;
      }
  
      if (!TEST_ptr(certsdir = test_get_argument(0))
              || !TEST_ptr(srpvfile = test_get_argument(1))
              || !TEST_ptr(tmpfilename = test_get_argument(2))
              || !TEST_ptr(modulename = test_get_argument(3))
              || !TEST_ptr(configfile = test_get_argument(4)))
          return 0;
  
      if (!TEST_true(OSSL_LIB_CTX_load_config(libctx, configfile)))
          return 0;
  
      /* Check we have the expected provider available */
      if (!TEST_true(OSSL_PROVIDER_available(libctx, modulename)))
          return 0;
  
      /* Check the default provider is not available */
      if (strcmp(modulename, "default") != 0
              && !TEST_false(OSSL_PROVIDER_available(libctx, "default")))
          return 0;
  
      if (strcmp(modulename, "fips") == 0)
          is_fips = 1;
  
      /*
       * We add, but don't load the test "tls-provider". We'll load it when we
       * need it.
       */
      if (!TEST_true(OSSL_PROVIDER_add_builtin(libctx, "tls-provider",
                                               tls_provider_init)))
          return 0;
  
  
      if (getenv("OPENSSL_TEST_GETCOUNTS") != NULL) {
  #ifdef OPENSSL_NO_CRYPTO_MDEBUG
          TEST_error("not supported in this build");
          return 0;
  #else
          int i, mcount, rcount, fcount;
  
          for (i = 0; i < 4; i++)
              test_export_key_mat(i);
          CRYPTO_get_alloc_counts(&mcount, &rcount, &fcount);
          test_printf_stdout("malloc %d realloc %d free %d\n",
                  mcount, rcount, fcount);
          return 1;
  #endif
      }
  
      cert = test_mk_file_path(certsdir, "servercert.pem");
      if (cert == NULL)
          goto err;
  
      privkey = test_mk_file_path(certsdir, "serverkey.pem");
      if (privkey == NULL)
          goto err;
  
      cert2 = test_mk_file_path(certsdir, "server-ecdsa-cert.pem");
      if (cert2 == NULL)
          goto err;
  
      privkey2 = test_mk_file_path(certsdir, "server-ecdsa-key.pem");
      if (privkey2 == NULL)
          goto err;
  
      cert1024 = test_mk_file_path(certsdir, "ee-cert-1024.pem");
      if (cert1024 == NULL)
          goto err;
  
      privkey1024 = test_mk_file_path(certsdir, "ee-key-1024.pem");
      if (privkey1024 == NULL)
          goto err;
  
      cert3072 = test_mk_file_path(certsdir, "ee-cert-3072.pem");
      if (cert3072 == NULL)
          goto err;
  
      privkey3072 = test_mk_file_path(certsdir, "ee-key-3072.pem");
      if (privkey3072 == NULL)
          goto err;
  
      cert4096 = test_mk_file_path(certsdir, "ee-cert-4096.pem");
      if (cert4096 == NULL)
          goto err;
  
      privkey4096 = test_mk_file_path(certsdir, "ee-key-4096.pem");
      if (privkey4096 == NULL)
          goto err;
  
      cert8192 = test_mk_file_path(certsdir, "ee-cert-8192.pem");
      if (cert8192 == NULL)
          goto err;
  
      privkey8192 = test_mk_file_path(certsdir, "ee-key-8192.pem");
      if (privkey8192 == NULL)
          goto err;
  
  #if !defined(OPENSSL_NO_KTLS) && !defined(OPENSSL_NO_SOCK)
  # if !defined(OPENSSL_NO_TLS1_2) || !defined(OSSL_NO_USABLE_TLS1_3)
      ADD_ALL_TESTS(test_ktls, NUM_KTLS_TEST_CIPHERS * 4);
      ADD_ALL_TESTS(test_ktls_sendfile, NUM_KTLS_TEST_CIPHERS);
  # endif
  #endif
      ADD_TEST(test_large_message_tls);
      ADD_TEST(test_large_message_tls_read_ahead);
  #ifndef OPENSSL_NO_DTLS
      ADD_TEST(test_large_message_dtls);
  #endif
      ADD_TEST(test_cleanse_plaintext);
  #ifndef OPENSSL_NO_OCSP
      ADD_TEST(test_tlsext_status_type);
  #endif
      ADD_TEST(test_session_with_only_int_cache);
      ADD_TEST(test_session_with_only_ext_cache);
      ADD_TEST(test_session_with_both_cache);
      ADD_TEST(test_session_wo_ca_names);
  #ifndef OSSL_NO_USABLE_TLS1_3
      ADD_ALL_TESTS(test_stateful_tickets, 3);
      ADD_ALL_TESTS(test_stateless_tickets, 3);
      ADD_TEST(test_psk_tickets);
      ADD_ALL_TESTS(test_extra_tickets, 6);
  #endif
      ADD_ALL_TESTS(test_ssl_set_bio, TOTAL_SSL_SET_BIO_TESTS);
      ADD_TEST(test_ssl_bio_pop_next_bio);
      ADD_TEST(test_ssl_bio_pop_ssl_bio);
      ADD_TEST(test_ssl_bio_change_rbio);
      ADD_TEST(test_ssl_bio_change_wbio);
  #if !defined(OPENSSL_NO_TLS1_2) || defined(OSSL_NO_USABLE_TLS1_3)
      ADD_ALL_TESTS(test_set_sigalgs, OSSL_NELEM(testsigalgs) * 2);
      ADD_TEST(test_keylog);
  #endif
  #ifndef OSSL_NO_USABLE_TLS1_3
      ADD_TEST(test_keylog_no_master_key);
  #endif
      ADD_TEST(test_client_cert_verify_cb);
      ADD_TEST(test_ssl_build_cert_chain);
      ADD_TEST(test_ssl_ctx_build_cert_chain);
  #ifndef OPENSSL_NO_TLS1_2
      ADD_TEST(test_client_hello_cb);
      ADD_TEST(test_no_ems);
      ADD_TEST(test_ccs_change_cipher);
  #endif
  #ifndef OSSL_NO_USABLE_TLS1_3
      ADD_ALL_TESTS(test_early_data_read_write, 3);
      /*
       * We don't do replay tests for external PSK. Replay protection isn't used
       * in that scenario.
       */
      ADD_ALL_TESTS(test_early_data_replay, 2);
      ADD_ALL_TESTS(test_early_data_skip, 3);
      ADD_ALL_TESTS(test_early_data_skip_hrr, 3);
      ADD_ALL_TESTS(test_early_data_skip_hrr_fail, 3);
      ADD_ALL_TESTS(test_early_data_skip_abort, 3);
      ADD_ALL_TESTS(test_early_data_not_sent, 3);
      ADD_ALL_TESTS(test_early_data_psk, 8);
      ADD_ALL_TESTS(test_early_data_psk_with_all_ciphers, 5);
      ADD_ALL_TESTS(test_early_data_not_expected, 3);
  # ifndef OPENSSL_NO_TLS1_2
      ADD_ALL_TESTS(test_early_data_tls1_2, 3);
  # endif
  #endif
  #ifndef OSSL_NO_USABLE_TLS1_3
      ADD_ALL_TESTS(test_set_ciphersuite, 10);
      ADD_TEST(test_ciphersuite_change);
      ADD_ALL_TESTS(test_tls13_ciphersuite, 4);
  # ifdef OPENSSL_NO_PSK
      ADD_ALL_TESTS(test_tls13_psk, 1);
  # else
      ADD_ALL_TESTS(test_tls13_psk, 4);
  # endif  /* OPENSSL_NO_PSK */
  # ifndef OPENSSL_NO_TLS1_2
      /* Test with both TLSv1.3 and 1.2 versions */
      ADD_ALL_TESTS(test_key_exchange, 14);
  #  if !defined(OPENSSL_NO_EC) && !defined(OPENSSL_NO_DH)
      ADD_ALL_TESTS(test_negotiated_group,
                    4 * (OSSL_NELEM(ecdhe_kexch_groups)
                         + OSSL_NELEM(ffdhe_kexch_groups)));
  #  endif
  # else
      /* Test with only TLSv1.3 versions */
      ADD_ALL_TESTS(test_key_exchange, 12);
  # endif
      ADD_ALL_TESTS(test_custom_exts, 6);
      ADD_TEST(test_stateless);
      ADD_TEST(test_pha_key_update);
  #else
      ADD_ALL_TESTS(test_custom_exts, 3);
  #endif
      ADD_ALL_TESTS(test_serverinfo, 8);
      ADD_ALL_TESTS(test_export_key_mat, 6);
  #ifndef OSSL_NO_USABLE_TLS1_3
      ADD_ALL_TESTS(test_export_key_mat_early, 3);
      ADD_TEST(test_key_update);
      ADD_ALL_TESTS(test_key_update_peer_in_write, 2);
      ADD_ALL_TESTS(test_key_update_peer_in_read, 2);
      ADD_ALL_TESTS(test_key_update_local_in_write, 2);
      ADD_ALL_TESTS(test_key_update_local_in_read, 2);
  #endif
      ADD_ALL_TESTS(test_ssl_clear, 2);
      ADD_ALL_TESTS(test_max_fragment_len_ext, OSSL_NELEM(max_fragment_len_test));
  #if !defined(OPENSSL_NO_SRP) && !defined(OPENSSL_NO_TLS1_2)
      ADD_ALL_TESTS(test_srp, 6);
  #endif
      ADD_ALL_TESTS(test_info_callback, 6);
      ADD_ALL_TESTS(test_ssl_pending, 2);
      ADD_ALL_TESTS(test_ssl_get_shared_ciphers, OSSL_NELEM(shared_ciphers_data));
      ADD_ALL_TESTS(test_ticket_callbacks, 16);
      ADD_ALL_TESTS(test_shutdown, 7);
      ADD_ALL_TESTS(test_incorrect_shutdown, 2);
      ADD_ALL_TESTS(test_cert_cb, 6);
      ADD_ALL_TESTS(test_client_cert_cb, 2);
      ADD_ALL_TESTS(test_ca_names, 3);
  #ifndef OPENSSL_NO_TLS1_2
      ADD_ALL_TESTS(test_multiblock_write, OSSL_NELEM(multiblock_cipherlist_data));
  #endif
      ADD_ALL_TESTS(test_servername, 10);
  #if !defined(OPENSSL_NO_EC) \
      && (!defined(OSSL_NO_USABLE_TLS1_3) || !defined(OPENSSL_NO_TLS1_2))
      ADD_ALL_TESTS(test_sigalgs_available, 6);
  #endif
  #ifndef OPENSSL_NO_TLS1_3
      ADD_ALL_TESTS(test_pluggable_group, 2);
  #endif
  #ifndef OPENSSL_NO_TLS1_2
      ADD_TEST(test_ssl_dup);
  # ifndef OPENSSL_NO_DH
      ADD_ALL_TESTS(test_set_tmp_dh, 11);
      ADD_ALL_TESTS(test_dh_auto, 7);
  # endif
  #endif
  #ifndef OSSL_NO_USABLE_TLS1_3
      ADD_TEST(test_sni_tls13);
  #endif
      ADD_TEST(test_inherit_verify_param);
      ADD_TEST(test_set_alpn);
      ADD_ALL_TESTS(test_session_timeout, 1);
      return 1;
  
   err:
      OPENSSL_free(cert);
      OPENSSL_free(privkey);
      OPENSSL_free(cert2);
      OPENSSL_free(privkey2);
      return 0;
  }
  
  void cleanup_tests(void)
  {
  # if !defined(OPENSSL_NO_TLS1_2) && !defined(OPENSSL_NO_DH)
      EVP_PKEY_free(tmp_dh_params);
  #endif
      OPENSSL_free(cert);
      OPENSSL_free(privkey);
      OPENSSL_free(cert2);
      OPENSSL_free(privkey2);
      OPENSSL_free(cert1024);
      OPENSSL_free(privkey1024);
      OPENSSL_free(cert3072);
      OPENSSL_free(privkey3072);
      OPENSSL_free(cert4096);
      OPENSSL_free(privkey4096);
      OPENSSL_free(cert8192);
      OPENSSL_free(privkey8192);
      bio_s_mempacket_test_free();
      bio_s_always_retry_free();
      OSSL_PROVIDER_unload(defctxnull);
      OSSL_LIB_CTX_free(libctx);
  }
  