Add sslapitest for SSL_early_get1_extensions_present()
Call it from the early callback used for testing these functions, and verify
the expected contents of the ClientHello
@@ -404,6 +404,7 @@ static int full_early_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};
@@ -411,6 +412,11 @@ static int full_early_callback(SSL *s, int *al, void *arg)
const unsigned char expected_ciphers[] = {0x00, 0x9d, 0xc0,
0x2c, 0x00, 0xff};
#endif
+ const int expected_extensions[] = {
+#ifndef OPENSSL_NO_EC
+ 11, 10,
+#endif
+ 35, 13, 22, 23};
size_t len;
/* Make sure we can defer processing and get called back. */
@@ -422,6 +428,15 @@ static int full_early_callback(SSL *s, int *al, void *arg)
|| !TEST_size_t_eq(SSL_early_get0_compression_methods(s, &p), 1)
|| !TEST_int_eq(*p, 0))
return 0;
+ if (!SSL_early_get1_extensions_present(s, &exts, &len))
+ return 0;
+ if (len != OSSL_NELEM(expected_extensions) ||
+ memcmp(exts, expected_extensions, len * sizeof(*exts)) != 0) {
+ printf("Early callback expected ClientHello extensions mismatch\n");
+ OPENSSL_free(exts);
+ return 0;
+ }
+ OPENSSL_free(exts);
return 1;
}
