text: /*
   * Copyright 1999-2016 The OpenSSL Project Authors. All Rights Reserved.
   *
   * Licensed under the OpenSSL license (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
   */
  
  #include <stdio.h>
  #include BOSS_OPENSSL_U_internal__cryptlib_h //original-code:"internal/cryptlib.h"
  #include BOSS_OPENSSL_V_openssl__conf_h //original-code:<openssl/conf.h>
  #include BOSS_OPENSSL_V_openssl__asn1_h //original-code:<openssl/asn1.h>
  #include BOSS_OPENSSL_V_openssl__asn1t_h //original-code:<openssl/asn1t.h>
  #include BOSS_OPENSSL_V_openssl__x509v3_h //original-code:<openssl/x509v3.h>
  
  #include BOSS_OPENSSL_U_internal__x509_int_h //original-code:"internal/x509_int.h"
  #include "ext_dat.h"
  
  static void *v2i_crld(const X509V3_EXT_METHOD *method,
                        X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *nval);
  static int i2r_crldp(const X509V3_EXT_METHOD *method, void *pcrldp, BIO *out,
                       int indent);
  
  const X509V3_EXT_METHOD v3_crld = {
      NID_crl_distribution_points, 0, ASN1_ITEM_ref(CRL_DIST_POINTS),
      0, 0, 0, 0,
      0, 0,
      0,
      v2i_crld,
      i2r_crldp, 0,
      NULL
  };
  
  const X509V3_EXT_METHOD v3_freshest_crl = {
      NID_freshest_crl, 0, ASN1_ITEM_ref(CRL_DIST_POINTS),
      0, 0, 0, 0,
      0, 0,
      0,
      v2i_crld,
      i2r_crldp, 0,
      NULL
  };
  
  static STACK_OF(GENERAL_NAME) *gnames_from_sectname(X509V3_CTX *ctx,
                                                      char *sect)
  {
      STACK_OF(CONF_VALUE) *gnsect;
      STACK_OF(GENERAL_NAME) *gens;
      if (*sect == '@')
          gnsect = X509V3_get_section(ctx, sect + 1);
      else
          gnsect = X509V3_parse_list(sect);
      if (!gnsect) {
          X509V3err(X509V3_F_GNAMES_FROM_SECTNAME, X509V3_R_SECTION_NOT_FOUND);
          return NULL;
      }
      gens = v2i_GENERAL_NAMES(NULL, ctx, gnsect);
      if (*sect == '@')
          X509V3_section_free(ctx, gnsect);
      else
          sk_CONF_VALUE_pop_free(gnsect, X509V3_conf_free);
      return gens;
  }
  
  static int set_dist_point_name(DIST_POINT_NAME **pdp, X509V3_CTX *ctx,
                                 CONF_VALUE *cnf)
  {
      STACK_OF(GENERAL_NAME) *fnm = NULL;
      STACK_OF(X509_NAME_ENTRY) *rnm = NULL;
  
      if (strncmp(cnf->name, "fullname", 9) == 0) {
          fnm = gnames_from_sectname(ctx, cnf->value);
          if (!fnm)
              goto err;
      } else if (strcmp(cnf->name, "relativename") == 0) {
          int ret;
          STACK_OF(CONF_VALUE) *dnsect;
          X509_NAME *nm;
          nm = X509_NAME_new();
          if (nm == NULL)
              return -1;
          dnsect = X509V3_get_section(ctx, cnf->value);
          if (!dnsect) {
              X509V3err(X509V3_F_SET_DIST_POINT_NAME,
                        X509V3_R_SECTION_NOT_FOUND);
              return -1;
          }
          ret = X509V3_NAME_from_section(nm, dnsect, MBSTRING_ASC);
          X509V3_section_free(ctx, dnsect);
          rnm = nm->entries;
          nm->entries = NULL;
          X509_NAME_free(nm);
          if (!ret || sk_X509_NAME_ENTRY_num(rnm) <= 0)
              goto err;
          /*
           * Since its a name fragment can't have more than one RDNSequence
           */
          if (sk_X509_NAME_ENTRY_value(rnm,
                                       sk_X509_NAME_ENTRY_num(rnm) - 1)->set) {
              X509V3err(X509V3_F_SET_DIST_POINT_NAME,
                        X509V3_R_INVALID_MULTIPLE_RDNS);
              goto err;
          }
      } else
          return 0;
  
      if (*pdp) {
          X509V3err(X509V3_F_SET_DIST_POINT_NAME,
                    X509V3_R_DISTPOINT_ALREADY_SET);
          goto err;
      }
  
      *pdp = DIST_POINT_NAME_new();
      if (*pdp == NULL)
          goto err;
      if (fnm) {
          (*pdp)->type = 0;
          (*pdp)->name.fullname = fnm;
      } else {
          (*pdp)->type = 1;
          (*pdp)->name.relativename = rnm;
      }
  
      return 1;
  
   err:
      sk_GENERAL_NAME_pop_free(fnm, GENERAL_NAME_free);
      sk_X509_NAME_ENTRY_pop_free(rnm, X509_NAME_ENTRY_free);
      return -1;
  }
  
  static const BIT_STRING_BITNAME reason_flags[] = {
      {0, "Unused", "unused"},
      {1, "Key Compromise", "keyCompromise"},
      {2, "CA Compromise", "CACompromise"},
      {3, "Affiliation Changed", "affiliationChanged"},
      {4, "Superseded", "superseded"},
      {5, "Cessation Of Operation", "cessationOfOperation"},
      {6, "Certificate Hold", "certificateHold"},
      {7, "Privilege Withdrawn", "privilegeWithdrawn"},
      {8, "AA Compromise", "AACompromise"},
      {-1, NULL, NULL}
  };
  
  static int set_reasons(ASN1_BIT_STRING **preas, char *value)
  {
      STACK_OF(CONF_VALUE) *rsk = NULL;
      const BIT_STRING_BITNAME *pbn;
      const char *bnam;
      int i, ret = 0;
      rsk = X509V3_parse_list(value);
      if (rsk == NULL)
          return 0;
      if (*preas != NULL)
          goto err;
      for (i = 0; i < sk_CONF_VALUE_num(rsk); i++) {
          bnam = sk_CONF_VALUE_value(rsk, i)->name;
          if (*preas == NULL) {
              *preas = ASN1_BIT_STRING_new();
              if (*preas == NULL)
                  goto err;
          }
          for (pbn = reason_flags; pbn->lname; pbn++) {
              if (strcmp(pbn->sname, bnam) == 0) {
                  if (!ASN1_BIT_STRING_set_bit(*preas, pbn->bitnum, 1))
                      goto err;
                  break;
              }
          }
          if (!pbn->lname)
              goto err;
      }
      ret = 1;
  
   err:
      sk_CONF_VALUE_pop_free(rsk, X509V3_conf_free);
      return ret;
  }
  
  static int print_reasons(BIO *out, const char *rname,
                           ASN1_BIT_STRING *rflags, int indent)
  {
      int first = 1;
      const BIT_STRING_BITNAME *pbn;
      BIO_printf(out, "%*s%s:\n%*s", indent, "", rname, indent + 2, "");
      for (pbn = reason_flags; pbn->lname; pbn++) {
          if (ASN1_BIT_STRING_get_bit(rflags, pbn->bitnum)) {
              if (first)
                  first = 0;
              else
                  BIO_puts(out, ", ");
              BIO_puts(out, pbn->lname);
          }
      }
      if (first)
          BIO_puts(out, "<EMPTY>\n");
      else
          BIO_puts(out, "\n");
      return 1;
  }
  
  static DIST_POINT *crldp_from_section(X509V3_CTX *ctx,
                                        STACK_OF(CONF_VALUE) *nval)
  {
      int i;
      CONF_VALUE *cnf;
      DIST_POINT *point = DIST_POINT_new();
  
      if (point == NULL)
          goto err;
      for (i = 0; i < sk_CONF_VALUE_num(nval); i++) {
          int ret;
          cnf = sk_CONF_VALUE_value(nval, i);
          ret = set_dist_point_name(&point->distpoint, ctx, cnf);
          if (ret > 0)
              continue;
          if (ret < 0)
              goto err;
          if (strcmp(cnf->name, "reasons") == 0) {
              if (!set_reasons(&point->reasons, cnf->value))
                  goto err;
          } else if (strcmp(cnf->name, "CRLissuer") == 0) {
              point->CRLissuer = gnames_from_sectname(ctx, cnf->value);
              if (!point->CRLissuer)
                  goto err;
          }
      }
  
      return point;
  
   err:
      DIST_POINT_free(point);
      return NULL;
  }
  
  static void *v2i_crld(const X509V3_EXT_METHOD *method,
                        X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *nval)
  {
      STACK_OF(DIST_POINT) *crld;
      GENERAL_NAMES *gens = NULL;
      GENERAL_NAME *gen = NULL;
      CONF_VALUE *cnf;
      const int num = sk_CONF_VALUE_num(nval);
      int i;
  
      crld = sk_DIST_POINT_new_reserve(NULL, num);
      if (crld == NULL)
          goto merr;
      for (i = 0; i < num; i++) {
          DIST_POINT *point;
  
          cnf = sk_CONF_VALUE_value(nval, i);
          if (!cnf->value) {
              STACK_OF(CONF_VALUE) *dpsect;
              dpsect = X509V3_get_section(ctx, cnf->name);
              if (!dpsect)
                  goto err;
              point = crldp_from_section(ctx, dpsect);
              X509V3_section_free(ctx, dpsect);
              if (!point)
                  goto err;
              sk_DIST_POINT_push(crld, point); /* no failure as it was reserved */
          } else {
              if ((gen = v2i_GENERAL_NAME(method, ctx, cnf)) == NULL)
                  goto err;
              if ((gens = GENERAL_NAMES_new()) == NULL)
                  goto merr;
              if (!sk_GENERAL_NAME_push(gens, gen))
                  goto merr;
              gen = NULL;
              if ((point = DIST_POINT_new()) == NULL)
                  goto merr;
              sk_DIST_POINT_push(crld, point); /* no failure as it was reserved */
              if ((point->distpoint = DIST_POINT_NAME_new()) == NULL)
                  goto merr;
              point->distpoint->name.fullname = gens;
              point->distpoint->type = 0;
              gens = NULL;
          }
      }
      return crld;
  
   merr:
      X509V3err(X509V3_F_V2I_CRLD, ERR_R_MALLOC_FAILURE);
   err:
      GENERAL_NAME_free(gen);
      GENERAL_NAMES_free(gens);
      sk_DIST_POINT_pop_free(crld, DIST_POINT_free);
      return NULL;
  }
  
  static int dpn_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
                    void *exarg)
  {
      DIST_POINT_NAME *dpn = (DIST_POINT_NAME *)*pval;
  
      switch (operation) {
      case ASN1_OP_NEW_POST:
          dpn->dpname = NULL;
          break;
  
      case ASN1_OP_FREE_POST:
          X509_NAME_free(dpn->dpname);
          break;
      }
      return 1;
  }
  
  
  ASN1_CHOICE_cb(DIST_POINT_NAME, dpn_cb) = {
          ASN1_IMP_SEQUENCE_OF(DIST_POINT_NAME, name.fullname, GENERAL_NAME, 0),
          ASN1_IMP_SET_OF(DIST_POINT_NAME, name.relativename, X509_NAME_ENTRY, 1)
  } ASN1_CHOICE_END_cb(DIST_POINT_NAME, DIST_POINT_NAME, type)
  
  
  IMPLEMENT_ASN1_FUNCTIONS(DIST_POINT_NAME)
  
  ASN1_SEQUENCE(DIST_POINT) = {
          ASN1_EXP_OPT(DIST_POINT, distpoint, DIST_POINT_NAME, 0),
          ASN1_IMP_OPT(DIST_POINT, reasons, ASN1_BIT_STRING, 1),
          ASN1_IMP_SEQUENCE_OF_OPT(DIST_POINT, CRLissuer, GENERAL_NAME, 2)
  } ASN1_SEQUENCE_END(DIST_POINT)
  
  IMPLEMENT_ASN1_FUNCTIONS(DIST_POINT)
  
  ASN1_ITEM_TEMPLATE(CRL_DIST_POINTS) =
          ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SEQUENCE_OF, 0, CRLDistributionPoints, DIST_POINT)
  ASN1_ITEM_TEMPLATE_END(CRL_DIST_POINTS)
  
  IMPLEMENT_ASN1_FUNCTIONS(CRL_DIST_POINTS)
  
  ASN1_SEQUENCE(ISSUING_DIST_POINT) = {
          ASN1_EXP_OPT(ISSUING_DIST_POINT, distpoint, DIST_POINT_NAME, 0),
          ASN1_IMP_OPT(ISSUING_DIST_POINT, onlyuser, ASN1_FBOOLEAN, 1),
          ASN1_IMP_OPT(ISSUING_DIST_POINT, onlyCA, ASN1_FBOOLEAN, 2),
          ASN1_IMP_OPT(ISSUING_DIST_POINT, onlysomereasons, ASN1_BIT_STRING, 3),
          ASN1_IMP_OPT(ISSUING_DIST_POINT, indirectCRL, ASN1_FBOOLEAN, 4),
          ASN1_IMP_OPT(ISSUING_DIST_POINT, onlyattr, ASN1_FBOOLEAN, 5)
  } ASN1_SEQUENCE_END(ISSUING_DIST_POINT)
  
  IMPLEMENT_ASN1_FUNCTIONS(ISSUING_DIST_POINT)
  
  static int i2r_idp(const X509V3_EXT_METHOD *method, void *pidp, BIO *out,
                     int indent);
  static void *v2i_idp(const X509V3_EXT_METHOD *method, X509V3_CTX *ctx,
                       STACK_OF(CONF_VALUE) *nval);
  
  const X509V3_EXT_METHOD v3_idp = {
      NID_issuing_distribution_point, X509V3_EXT_MULTILINE,
      ASN1_ITEM_ref(ISSUING_DIST_POINT),
      0, 0, 0, 0,
      0, 0,
      0,
      v2i_idp,
      i2r_idp, 0,
      NULL
  };
  
  static void *v2i_idp(const X509V3_EXT_METHOD *method, X509V3_CTX *ctx,
                       STACK_OF(CONF_VALUE) *nval)
  {
      ISSUING_DIST_POINT *idp = NULL;
      CONF_VALUE *cnf;
      char *name, *val;
      int i, ret;
      idp = ISSUING_DIST_POINT_new();
      if (idp == NULL)
          goto merr;
      for (i = 0; i < sk_CONF_VALUE_num(nval); i++) {
          cnf = sk_CONF_VALUE_value(nval, i);
          name = cnf->name;
          val = cnf->value;
          ret = set_dist_point_name(&idp->distpoint, ctx, cnf);
          if (ret > 0)
              continue;
          if (ret < 0)
              goto err;
          if (strcmp(name, "onlyuser") == 0) {
              if (!X509V3_get_value_bool(cnf, &idp->onlyuser))
                  goto err;
          } else if (strcmp(name, "onlyCA") == 0) {
              if (!X509V3_get_value_bool(cnf, &idp->onlyCA))
                  goto err;
          } else if (strcmp(name, "onlyAA") == 0) {
              if (!X509V3_get_value_bool(cnf, &idp->onlyattr))
                  goto err;
          } else if (strcmp(name, "indirectCRL") == 0) {
              if (!X509V3_get_value_bool(cnf, &idp->indirectCRL))
                  goto err;
          } else if (strcmp(name, "onlysomereasons") == 0) {
              if (!set_reasons(&idp->onlysomereasons, val))
                  goto err;
          } else {
              X509V3err(X509V3_F_V2I_IDP, X509V3_R_INVALID_NAME);
              X509V3_conf_err(cnf);
              goto err;
          }
      }
      return idp;
  
   merr:
      X509V3err(X509V3_F_V2I_IDP, ERR_R_MALLOC_FAILURE);
   err:
      ISSUING_DIST_POINT_free(idp);
      return NULL;
  }
  
  static int print_gens(BIO *out, STACK_OF(GENERAL_NAME) *gens, int indent)
  {
      int i;
      for (i = 0; i < sk_GENERAL_NAME_num(gens); i++) {
          BIO_printf(out, "%*s", indent + 2, "");
          GENERAL_NAME_print(out, sk_GENERAL_NAME_value(gens, i));
          BIO_puts(out, "\n");
      }
      return 1;
  }
  
  static int print_distpoint(BIO *out, DIST_POINT_NAME *dpn, int indent)
  {
      if (dpn->type == 0) {
          BIO_printf(out, "%*sFull Name:\n", indent, "");
          print_gens(out, dpn->name.fullname, indent);
      } else {
          X509_NAME ntmp;
          ntmp.entries = dpn->name.relativename;
          BIO_printf(out, "%*sRelative Name:\n%*s", indent, "", indent + 2, "");
          X509_NAME_print_ex(out, &ntmp, 0, XN_FLAG_ONELINE);
          BIO_puts(out, "\n");
      }
      return 1;
  }
  
  static int i2r_idp(const X509V3_EXT_METHOD *method, void *pidp, BIO *out,
                     int indent)
  {
      ISSUING_DIST_POINT *idp = pidp;
      if (idp->distpoint)
          print_distpoint(out, idp->distpoint, indent);
      if (idp->onlyuser > 0)
          BIO_printf(out, "%*sOnly User Certificates\n", indent, "");
      if (idp->onlyCA > 0)
          BIO_printf(out, "%*sOnly CA Certificates\n", indent, "");
      if (idp->indirectCRL > 0)
          BIO_printf(out, "%*sIndirect CRL\n", indent, "");
      if (idp->onlysomereasons)
          print_reasons(out, "Only Some Reasons", idp->onlysomereasons, indent);
      if (idp->onlyattr > 0)
          BIO_printf(out, "%*sOnly Attribute Certificates\n", indent, "");
      if (!idp->distpoint && (idp->onlyuser <= 0) && (idp->onlyCA <= 0)
          && (idp->indirectCRL <= 0) && !idp->onlysomereasons
          && (idp->onlyattr <= 0))
          BIO_printf(out, "%*s<EMPTY>\n", indent, "");
  
      return 1;
  }
  
  static int i2r_crldp(const X509V3_EXT_METHOD *method, void *pcrldp, BIO *out,
                       int indent)
  {
      STACK_OF(DIST_POINT) *crld = pcrldp;
      DIST_POINT *point;
      int i;
      for (i = 0; i < sk_DIST_POINT_num(crld); i++) {
          BIO_puts(out, "\n");
          point = sk_DIST_POINT_value(crld, i);
          if (point->distpoint)
              print_distpoint(out, point->distpoint, indent);
          if (point->reasons)
              print_reasons(out, "Reasons", point->reasons, indent);
          if (point->CRLissuer) {
              BIO_printf(out, "%*sCRL Issuer:\n", indent, "");
              print_gens(out, point->CRLissuer, indent);
          }
      }
      return 1;
  }
  
  int DIST_POINT_set_dpname(DIST_POINT_NAME *dpn, X509_NAME *iname)
  {
      int i;
      STACK_OF(X509_NAME_ENTRY) *frag;
      X509_NAME_ENTRY *ne;
      if (!dpn || (dpn->type != 1))
          return 1;
      frag = dpn->name.relativename;
      dpn->dpname = X509_NAME_dup(iname);
      if (!dpn->dpname)
          return 0;
      for (i = 0; i < sk_X509_NAME_ENTRY_num(frag); i++) {
          ne = sk_X509_NAME_ENTRY_value(frag, i);
          if (!X509_NAME_add_entry(dpn->dpname, ne, -1, i ? 0 : 1)) {
              X509_NAME_free(dpn->dpname);
              dpn->dpname = NULL;
              return 0;
          }
      }
      /* generate cached encoding of name */
      if (i2d_X509_NAME(dpn->dpname, NULL) < 0) {
          X509_NAME_free(dpn->dpname);
          dpn->dpname = NULL;
          return 0;
      }
      return 1;
  }
  