/src/boringssl/crypto/x509/x509_vpm.c

Source (jump to first uncovered line)
/*
 * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
 * 2004.
 */
/* ====================================================================
 * Copyright (c) 2004 The OpenSSL Project.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. All advertising materials mentioning features or use of this
 *    software must display the following acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
 *
 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
 *    endorse or promote products derived from this software without
 *    prior written permission. For written permission, please contact
 *    licensing@OpenSSL.org.
 *
 * 5. Products derived from this software may not be called "OpenSSL"
 *    nor may "OpenSSL" appear in their names without prior written
 *    permission of the OpenSSL Project.
 *
 * 6. Redistributions of any form whatsoever must retain the following
 *    acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
 *
 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 * ====================================================================
 *
 * This product includes cryptographic software written by Eric Young
 * (eay@cryptsoft.com).  This product includes software written by Tim
 * Hudson (tjh@cryptsoft.com). */

#include <string.h>

#include <openssl/mem.h>
#include <openssl/obj.h>
#include <openssl/stack.h>
#include <openssl/x509.h>
#include <openssl/x509v3.h>

#include "../internal.h"
#include "../x509v3/internal.h"
#include "internal.h"


// X509_VERIFY_PARAM functions

#define SET_HOST 0
#define ADD_HOST 1

static void str_free(char *s) { OPENSSL_free(s); }

#define string_stack_free(sk) sk_OPENSSL_STRING_pop_free(sk, str_free)

static int int_x509_param_set_hosts(X509_VERIFY_PARAM *param, int mode,
                                    const char *name, size_t namelen) {
  char *copy;

  if (name == NULL || namelen == 0) {
    // Unlike OpenSSL, we reject trying to set or add an empty name.
    return 0;
  }

  // Refuse names with embedded NUL bytes.
  // XXX: Do we need to push an error onto the error stack?
  if (name && OPENSSL_memchr(name, '\0', namelen)) {
    return 0;
  }

  if (mode == SET_HOST && param->hosts) {
    string_stack_free(param->hosts);
    param->hosts = NULL;
  }

  copy = OPENSSL_strndup(name, namelen);
  if (copy == NULL) {
    return 0;
  }

  if (param->hosts == NULL &&
      (param->hosts = sk_OPENSSL_STRING_new_null()) == NULL) {
    OPENSSL_free(copy);
    return 0;
  }

  if (!sk_OPENSSL_STRING_push(param->hosts, copy)) {
    OPENSSL_free(copy);
    if (sk_OPENSSL_STRING_num(param->hosts) == 0) {
      sk_OPENSSL_STRING_free(param->hosts);
      param->hosts = NULL;
    }
    return 0;
  }

  return 1;
}

static void x509_verify_param_zero(X509_VERIFY_PARAM *param) {
  if (!param) {
    return;
  }
  param->name = NULL;
  param->purpose = 0;
  param->trust = 0;
  // param->inh_flags = X509_VP_FLAG_DEFAULT;
  param->inh_flags = 0;
  param->flags = 0;
  param->depth = -1;
  if (param->policies) {
    sk_ASN1_OBJECT_pop_free(param->policies, ASN1_OBJECT_free);
    param->policies = NULL;
  }
  if (param->hosts) {
    string_stack_free(param->hosts);
    param->hosts = NULL;
  }
  if (param->peername) {
    OPENSSL_free(param->peername);
    param->peername = NULL;
  }
  if (param->email) {
    OPENSSL_free(param->email);
    param->email = NULL;
    param->emaillen = 0;
  }
  if (param->ip) {
    OPENSSL_free(param->ip);
    param->ip = NULL;
    param->iplen = 0;
  }
  param->poison = 0;
}

X509_VERIFY_PARAM *X509_VERIFY_PARAM_new(void) {
  X509_VERIFY_PARAM *param;
  param = OPENSSL_malloc(sizeof(X509_VERIFY_PARAM));
  if (!param) {
    return NULL;
  }
  OPENSSL_memset(param, 0, sizeof(X509_VERIFY_PARAM));
  x509_verify_param_zero(param);
  return param;
}

void X509_VERIFY_PARAM_free(X509_VERIFY_PARAM *param) {
  if (param == NULL) {
    return;
  }
  x509_verify_param_zero(param);
  OPENSSL_free(param);
}

//-
// This function determines how parameters are "inherited" from one structure
// to another. There are several different ways this can happen.
//
// 1. If a child structure needs to have its values initialized from a parent
//    they are simply copied across. For example SSL_CTX copied to SSL.
// 2. If the structure should take on values only if they are currently unset.
//    For example the values in an SSL structure will take appropriate value
//    for SSL servers or clients but only if the application has not set new
//    ones.
//
// The "inh_flags" field determines how this function behaves.
//
// Normally any values which are set in the default are not copied from the
// destination and verify flags are ORed together.
//
// If X509_VP_FLAG_DEFAULT is set then anything set in the source is copied
// to the destination. Effectively the values in "to" become default values
// which will be used only if nothing new is set in "from".
//
// If X509_VP_FLAG_OVERWRITE is set then all value are copied across whether
// they are set or not. Flags is still Ored though.
//
// If X509_VP_FLAG_RESET_FLAGS is set then the flags value is copied instead
// of ORed.
//
// If X509_VP_FLAG_LOCKED is set then no values are copied.
//
// If X509_VP_FLAG_ONCE is set then the current inh_flags setting is zeroed
// after the next call.

// Macro to test if a field should be copied from src to dest

#define test_x509_verify_param_copy(field, def) \
  (to_overwrite ||                              \
   ((src->field != (def)) && (to_default || (dest->field == (def)))))

// Macro to test and copy a field if necessary

#define x509_verify_param_copy(field, def)     \
  if (test_x509_verify_param_copy(field, def)) \
  dest->field = src->field

int X509_VERIFY_PARAM_inherit(X509_VERIFY_PARAM *dest,
                              const X509_VERIFY_PARAM *src) {
  unsigned long inh_flags;
  int to_default, to_overwrite;
  if (!src) {
    return 1;
  }
  inh_flags = dest->inh_flags | src->inh_flags;

  if (inh_flags & X509_VP_FLAG_ONCE) {
    dest->inh_flags = 0;
  }

  if (inh_flags & X509_VP_FLAG_LOCKED) {
    return 1;
  }

  if (inh_flags & X509_VP_FLAG_DEFAULT) {
    to_default = 1;
  } else {
    to_default = 0;
  }

  if (inh_flags & X509_VP_FLAG_OVERWRITE) {
    to_overwrite = 1;
  } else {
    to_overwrite = 0;
  }

  x509_verify_param_copy(purpose, 0);
  x509_verify_param_copy(trust, 0);
  x509_verify_param_copy(depth, -1);

  // If overwrite or check time not set, copy across

  if (to_overwrite || !(dest->flags & X509_V_FLAG_USE_CHECK_TIME)) {
    dest->check_time = src->check_time;
    dest->flags &= ~X509_V_FLAG_USE_CHECK_TIME;
    // Don't need to copy flag: that is done below
  }

  if (inh_flags & X509_VP_FLAG_RESET_FLAGS) {
    dest->flags = 0;
  }

  dest->flags |= src->flags;

  if (test_x509_verify_param_copy(policies, NULL)) {
    if (!X509_VERIFY_PARAM_set1_policies(dest, src->policies)) {
      return 0;
    }
  }

  // Copy the host flags if and only if we're copying the host list
  if (test_x509_verify_param_copy(hosts, NULL)) {
    if (dest->hosts) {
      string_stack_free(dest->hosts);
      dest->hosts = NULL;
    }
    if (src->hosts) {
      dest->hosts =
          sk_OPENSSL_STRING_deep_copy(src->hosts, OPENSSL_strdup, str_free);
      if (dest->hosts == NULL) {
        return 0;
      }
      dest->hostflags = src->hostflags;
    }
  }

  if (test_x509_verify_param_copy(email, NULL)) {
    if (!X509_VERIFY_PARAM_set1_email(dest, src->email, src->emaillen)) {
      return 0;
    }
  }

  if (test_x509_verify_param_copy(ip, NULL)) {
    if (!X509_VERIFY_PARAM_set1_ip(dest, src->ip, src->iplen)) {
      return 0;
    }
  }

  dest->poison = src->poison;

  return 1;
}

int X509_VERIFY_PARAM_set1(X509_VERIFY_PARAM *to,
                           const X509_VERIFY_PARAM *from) {
  unsigned long save_flags = to->inh_flags;
  int ret;
  to->inh_flags |= X509_VP_FLAG_DEFAULT;
  ret = X509_VERIFY_PARAM_inherit(to, from);
  to->inh_flags = save_flags;
  return ret;
}

static int int_x509_param_set1(char **pdest, size_t *pdestlen, const char *src,
                               size_t srclen) {
  void *tmp;
  if (src == NULL || srclen == 0) {
    // Unlike OpenSSL, we do not allow an empty string to disable previously
    // configured checks.
    return 0;
  }

  tmp = OPENSSL_memdup(src, srclen);
  if (!tmp) {
    return 0;
  }

  if (*pdest) {
    OPENSSL_free(*pdest);
  }
  *pdest = tmp;
  if (pdestlen) {
    *pdestlen = srclen;
  }
  return 1;
}

int X509_VERIFY_PARAM_set1_name(X509_VERIFY_PARAM *param, const char *name) {
  if (param->name) {
    OPENSSL_free(param->name);
  }
  param->name = OPENSSL_strdup(name);
  if (param->name) {
    return 1;
  }
  return 0;
}

int X509_VERIFY_PARAM_set_flags(X509_VERIFY_PARAM *param, unsigned long flags) {
  param->flags |= flags;
  return 1;
}

int X509_VERIFY_PARAM_clear_flags(X509_VERIFY_PARAM *param,
                                  unsigned long flags) {
  param->flags &= ~flags;
  return 1;
}

unsigned long X509_VERIFY_PARAM_get_flags(X509_VERIFY_PARAM *param) {
  return param->flags;
}

int X509_VERIFY_PARAM_set_purpose(X509_VERIFY_PARAM *param, int purpose) {
  return X509_PURPOSE_set(&param->purpose, purpose);
}

int X509_VERIFY_PARAM_set_trust(X509_VERIFY_PARAM *param, int trust) {
  return X509_TRUST_set(&param->trust, trust);
}

void X509_VERIFY_PARAM_set_depth(X509_VERIFY_PARAM *param, int depth) {
  param->depth = depth;
}

void X509_VERIFY_PARAM_set_time_posix(X509_VERIFY_PARAM *param, int64_t t) {
  param->check_time = t;
  param->flags |= X509_V_FLAG_USE_CHECK_TIME;
}

void X509_VERIFY_PARAM_set_time(X509_VERIFY_PARAM *param, time_t t) {
  X509_VERIFY_PARAM_set_time_posix(param, t);
}

int X509_VERIFY_PARAM_add0_policy(X509_VERIFY_PARAM *param,
                                  ASN1_OBJECT *policy) {
  if (!param->policies) {
    param->policies = sk_ASN1_OBJECT_new_null();
    if (!param->policies) {
      return 0;
    }
  }
  if (!sk_ASN1_OBJECT_push(param->policies, policy)) {
    return 0;
  }
  return 1;
}

int X509_VERIFY_PARAM_set1_policies(X509_VERIFY_PARAM *param,
                                    const STACK_OF(ASN1_OBJECT) *policies) {
  if (!param) {
    return 0;
  }

  sk_ASN1_OBJECT_pop_free(param->policies, ASN1_OBJECT_free);
  if (!policies) {
    param->policies = NULL;
    return 1;
  }

  param->policies =
      sk_ASN1_OBJECT_deep_copy(policies, OBJ_dup, ASN1_OBJECT_free);
  if (!param->policies) {
    return 0;
  }

  return 1;
}

int X509_VERIFY_PARAM_set1_host(X509_VERIFY_PARAM *param, const char *name,
                                size_t namelen) {
  if (!int_x509_param_set_hosts(param, SET_HOST, name, namelen)) {
    param->poison = 1;
    return 0;
  }
  return 1;
}

int X509_VERIFY_PARAM_add1_host(X509_VERIFY_PARAM *param, const char *name,
                                size_t namelen) {
  if (!int_x509_param_set_hosts(param, ADD_HOST, name, namelen)) {
    param->poison = 1;
    return 0;
  }
  return 1;
}

void X509_VERIFY_PARAM_set_hostflags(X509_VERIFY_PARAM *param,
                                     unsigned int flags) {
  param->hostflags = flags;
}

char *X509_VERIFY_PARAM_get0_peername(X509_VERIFY_PARAM *param) {
  return param->peername;
}

int X509_VERIFY_PARAM_set1_email(X509_VERIFY_PARAM *param, const char *email,
                                 size_t emaillen) {
  if (OPENSSL_memchr(email, '\0', emaillen) != NULL ||
      !int_x509_param_set1(&param->email, &param->emaillen, email, emaillen)) {
    param->poison = 1;
    return 0;
  }

  return 1;
}

int X509_VERIFY_PARAM_set1_ip(X509_VERIFY_PARAM *param, const unsigned char *ip,
                              size_t iplen) {
  if ((iplen != 4 && iplen != 16) ||
      !int_x509_param_set1((char **)&param->ip, &param->iplen, (char *)ip,
                           iplen)) {
    param->poison = 1;
    return 0;
  }

  return 1;
}

int X509_VERIFY_PARAM_set1_ip_asc(X509_VERIFY_PARAM *param, const char *ipasc) {
  unsigned char ipout[16];
  size_t iplen;

  iplen = (size_t)x509v3_a2i_ipadd(ipout, ipasc);
  if (iplen == 0) {
    return 0;
  }
  return X509_VERIFY_PARAM_set1_ip(param, ipout, iplen);
}

int X509_VERIFY_PARAM_get_depth(const X509_VERIFY_PARAM *param) {
  return param->depth;
}

const char *X509_VERIFY_PARAM_get0_name(const X509_VERIFY_PARAM *param) {
  return param->name;
}

#define vpm_empty_id NULL, 0U, NULL, NULL, 0, NULL, 0, 0

// Default verify parameters: these are used for various applications and can
// be overridden by the user specified table. NB: the 'name' field *must* be
// in alphabetical order because it will be searched using OBJ_search.

static const X509_VERIFY_PARAM default_table[] = {
    {(char *)"default",          // X509 default parameters
     0,                          // Check time
     0,                          // internal flags
     X509_V_FLAG_TRUSTED_FIRST,  // flags
     0,                          // purpose
     0,                          // trust
     100,                        // depth
     NULL,                       // policies
     vpm_empty_id},
    {(char *)"pkcs7",          // S/MIME sign parameters
     0,                        // Check time
     0,                        // internal flags
     0,                        // flags
     X509_PURPOSE_SMIME_SIGN,  // purpose
     X509_TRUST_EMAIL,         // trust
     -1,                       // depth
     NULL,                     // policies
     vpm_empty_id},
    {(char *)"smime_sign",     // S/MIME sign parameters
     0,                        // Check time
     0,                        // internal flags
     0,                        // flags
     X509_PURPOSE_SMIME_SIGN,  // purpose
     X509_TRUST_EMAIL,         // trust
     -1,                       // depth
     NULL,                     // policies
     vpm_empty_id},
    {(char *)"ssl_client",     // SSL/TLS client parameters
     0,                        // Check time
     0,                        // internal flags
     0,                        // flags
     X509_PURPOSE_SSL_CLIENT,  // purpose
     X509_TRUST_SSL_CLIENT,    // trust
     -1,                       // depth
     NULL,                     // policies
     vpm_empty_id},
    {(char *)"ssl_server",     // SSL/TLS server parameters
     0,                        // Check time
     0,                        // internal flags
     0,                        // flags
     X509_PURPOSE_SSL_SERVER,  // purpose
     X509_TRUST_SSL_SERVER,    // trust
     -1,                       // depth
     NULL,                     // policies
     vpm_empty_id}};

const X509_VERIFY_PARAM *X509_VERIFY_PARAM_lookup(const char *name) {
  for (size_t i = 0; i < OPENSSL_ARRAY_SIZE(default_table); i++) {
    if (strcmp(default_table[i].name, name) == 0) {
      return &default_table[i];
    }
  }
  return NULL;
}

Coverage Report

Created: 2023-06-29 07:25

Line	Count	Source (jump to first uncovered line)
1		/*
2		* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
3		* 2004.
4		*/
5		/* ====================================================================
6		* Copyright (c) 2004 The OpenSSL Project. All rights reserved.
7		*
8		* Redistribution and use in source and binary forms, with or without
9		* modification, are permitted provided that the following conditions
10		* are met:
11		*
12		* 1. Redistributions of source code must retain the above copyright
13		* notice, this list of conditions and the following disclaimer.
14		*
15		* 2. Redistributions in binary form must reproduce the above copyright
16		* notice, this list of conditions and the following disclaimer in
17		* the documentation and/or other materials provided with the
18		* distribution.
19		*
20		* 3. All advertising materials mentioning features or use of this
21		* software must display the following acknowledgment:
22		* "This product includes software developed by the OpenSSL Project
23		* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
24		*
25		* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
26		* endorse or promote products derived from this software without
27		* prior written permission. For written permission, please contact
28		* licensing@OpenSSL.org.
29		*
30		* 5. Products derived from this software may not be called "OpenSSL"
31		* nor may "OpenSSL" appear in their names without prior written
32		* permission of the OpenSSL Project.
33		*
34		* 6. Redistributions of any form whatsoever must retain the following
35		* acknowledgment:
36		* "This product includes software developed by the OpenSSL Project
37		* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
38		*
39		* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
40		* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
41		* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
42		* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
43		* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44		* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
45		* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
46		* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47		* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
48		* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
49		* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
50		* OF THE POSSIBILITY OF SUCH DAMAGE.
51		* ====================================================================
52		*
53		* This product includes cryptographic software written by Eric Young
54		* (eay@cryptsoft.com). This product includes software written by Tim
55		* Hudson (tjh@cryptsoft.com). */
56
57		#include <string.h>
58
59		#include <openssl/mem.h>
60		#include <openssl/obj.h>
61		#include <openssl/stack.h>
62		#include <openssl/x509.h>
63		#include <openssl/x509v3.h>
64
65		#include "../internal.h"
66		#include "../x509v3/internal.h"
67		#include "internal.h"
68
69
70		// X509_VERIFY_PARAM functions
71
72	0	#define SET_HOST 0
73	0	#define ADD_HOST 1
74
75	0	static void str_free(char *s) { OPENSSL_free(s); }
76
77	0	#define string_stack_free(sk) sk_OPENSSL_STRING_pop_free(sk, str_free)
78
79		static int int_x509_param_set_hosts(X509_VERIFY_PARAM *param, int mode,
80	0	const char *name, size_t namelen) {
81	0	char *copy;
82
83	0	if (name == NULL \|\| namelen == 0) {
84		// Unlike OpenSSL, we reject trying to set or add an empty name.
85	0	return 0;
86	0	}
87
88		// Refuse names with embedded NUL bytes.
89		// XXX: Do we need to push an error onto the error stack?
90	0	if (name && OPENSSL_memchr(name, '\0', namelen)) {
91	0	return 0;
92	0	}
93
94	0	if (mode == SET_HOST && param->hosts) {
95	0	string_stack_free(param->hosts);
96	0	param->hosts = NULL;
97	0	}
98
99	0	copy = OPENSSL_strndup(name, namelen);
100	0	if (copy == NULL) {
101	0	return 0;
102	0	}
103
104	0	if (param->hosts == NULL &&
105	0	(param->hosts = sk_OPENSSL_STRING_new_null()) == NULL) {
106	0	OPENSSL_free(copy);
107	0	return 0;
108	0	}
109
110	0	if (!sk_OPENSSL_STRING_push(param->hosts, copy)) {
111	0	OPENSSL_free(copy);
112	0	if (sk_OPENSSL_STRING_num(param->hosts) == 0) {
113	0	sk_OPENSSL_STRING_free(param->hosts);
114	0	param->hosts = NULL;
115	0	}
116	0	return 0;
117	0	}
118
119	0	return 1;
120	0	}
121
122	175k	static void x509_verify_param_zero(X509_VERIFY_PARAM *param) {
123	175k	if (!param) {
124	0	return;
125	0	}
126	175k	param->name = NULL;
127	175k	param->purpose = 0;
128	175k	param->trust = 0;
129		// param->inh_flags = X509_VP_FLAG_DEFAULT;
130	175k	param->inh_flags = 0;
131	175k	param->flags = 0;
132	175k	param->depth = -1;
133	175k	if (param->policies) {
134	0	sk_ASN1_OBJECT_pop_free(param->policies, ASN1_OBJECT_free);
135	0	param->policies = NULL;
136	0	}
137	175k	if (param->hosts) {
138	0	string_stack_free(param->hosts);
139	0	param->hosts = NULL;
140	0	}
141	175k	if (param->peername) {
142	0	OPENSSL_free(param->peername);
143	0	param->peername = NULL;
144	0	}
145	175k	if (param->email) {
146	0	OPENSSL_free(param->email);
147	0	param->email = NULL;
148	0	param->emaillen = 0;
149	0	}
150	175k	if (param->ip) {
151	0	OPENSSL_free(param->ip);
152	0	param->ip = NULL;
153	0	param->iplen = 0;
154	0	}
155	175k	param->poison = 0;
156	175k	}
157
158	87.7k	X509_VERIFY_PARAM *X509_VERIFY_PARAM_new(void) {
159	87.7k	X509_VERIFY_PARAM *param;
160	87.7k	param = OPENSSL_malloc(sizeof(X509_VERIFY_PARAM));
161	87.7k	if (!param) {
162	0	return NULL;
163	0	}
164	87.7k	OPENSSL_memset(param, 0, sizeof(X509_VERIFY_PARAM));
165	87.7k	x509_verify_param_zero(param);
166	87.7k	return param;
167	87.7k	}
168
169	87.6k	void X509_VERIFY_PARAM_free(X509_VERIFY_PARAM *param) {
170	87.6k	if (param == NULL) {
171	0	return;
172	0	}
173	87.6k	x509_verify_param_zero(param);
174	87.6k	OPENSSL_free(param);
175	87.6k	}
176
177		//-
178		// This function determines how parameters are "inherited" from one structure
179		// to another. There are several different ways this can happen.
180		//
181		// 1. If a child structure needs to have its values initialized from a parent
182		// they are simply copied across. For example SSL_CTX copied to SSL.
183		// 2. If the structure should take on values only if they are currently unset.
184		// For example the values in an SSL structure will take appropriate value
185		// for SSL servers or clients but only if the application has not set new
186		// ones.
187		//
188		// The "inh_flags" field determines how this function behaves.
189		//
190		// Normally any values which are set in the default are not copied from the
191		// destination and verify flags are ORed together.
192		//
193		// If X509_VP_FLAG_DEFAULT is set then anything set in the source is copied
194		// to the destination. Effectively the values in "to" become default values
195		// which will be used only if nothing new is set in "from".
196		//
197		// If X509_VP_FLAG_OVERWRITE is set then all value are copied across whether
198		// they are set or not. Flags is still Ored though.
199		//
200		// If X509_VP_FLAG_RESET_FLAGS is set then the flags value is copied instead
201		// of ORed.
202		//
203		// If X509_VP_FLAG_LOCKED is set then no values are copied.
204		//
205		// If X509_VP_FLAG_ONCE is set then the current inh_flags setting is zeroed
206		// after the next call.
207
208		// Macro to test if a field should be copied from src to dest
209
210		#define test_x509_verify_param_copy(field, def) \
211	674k	(to_overwrite \|\| \
212	674k	((src->field != (def)) && (to_default \|\| (dest->field == (def)))))
213
214		// Macro to test and copy a field if necessary
215
216		#define x509_verify_param_copy(field, def) \
217	289k	if (test_x509_verify_param_copy(field, def)) \
218	289k	dest->field = src->field
219
220		int X509_VERIFY_PARAM_inherit(X509_VERIFY_PARAM *dest,
221	96.4k	const X509_VERIFY_PARAM *src) {
222	96.4k	unsigned long inh_flags;
223	96.4k	int to_default, to_overwrite;
224	96.4k	if (!src) {
225	0	return 1;
226	0	}
227	96.4k	inh_flags = dest->inh_flags \| src->inh_flags;
228
229	96.4k	if (inh_flags & X509_VP_FLAG_ONCE) {
230	0	dest->inh_flags = 0;
231	0	}
232
233	96.4k	if (inh_flags & X509_VP_FLAG_LOCKED) {
234	0	return 1;
235	0	}
236
237	96.4k	if (inh_flags & X509_VP_FLAG_DEFAULT) {
238	6.17k	to_default = 1;
239	90.2k	} else {
240	90.2k	to_default = 0;
241	90.2k	}
242
243	96.4k	if (inh_flags & X509_VP_FLAG_OVERWRITE) {
244	0	to_overwrite = 1;
245	96.4k	} else {
246	96.4k	to_overwrite = 0;
247	96.4k	}
248
249	96.4k	x509_verify_param_copy(purpose, 0);
250	96.4k	x509_verify_param_copy(trust, 0);
251	96.4k	x509_verify_param_copy(depth, -1);
252
253		// If overwrite or check time not set, copy across
254
255	96.4k	if (to_overwrite \|\| !(dest->flags & X509_V_FLAG_USE_CHECK_TIME)) {
256	96.4k	dest->check_time = src->check_time;
257	96.4k	dest->flags &= ~X509_V_FLAG_USE_CHECK_TIME;
258		// Don't need to copy flag: that is done below
259	96.4k	}
260
261	96.4k	if (inh_flags & X509_VP_FLAG_RESET_FLAGS) {
262	0	dest->flags = 0;
263	0	}
264
265	96.4k	dest->flags \|= src->flags;
266
267	96.4k	if (test_x509_verify_param_copy(policies, NULL)) {
268	0	if (!X509_VERIFY_PARAM_set1_policies(dest, src->policies)) {
269	0	return 0;
270	0	}
271	0	}
272
273		// Copy the host flags if and only if we're copying the host list
274	96.4k	if (test_x509_verify_param_copy(hosts, NULL)) {
275	0	if (dest->hosts) {
276	0	string_stack_free(dest->hosts);
277	0	dest->hosts = NULL;
278	0	}
279	0	if (src->hosts) {
280	0	dest->hosts =
281	0	sk_OPENSSL_STRING_deep_copy(src->hosts, OPENSSL_strdup, str_free);
282	0	if (dest->hosts == NULL) {
283	0	return 0;
284	0	}
285	0	dest->hostflags = src->hostflags;
286	0	}
287	0	}
288
289	96.4k	if (test_x509_verify_param_copy(email, NULL)) {
290	0	if (!X509_VERIFY_PARAM_set1_email(dest, src->email, src->emaillen)) {
291	0	return 0;
292	0	}
293	0	}
294
295	96.4k	if (test_x509_verify_param_copy(ip, NULL)) {
296	0	if (!X509_VERIFY_PARAM_set1_ip(dest, src->ip, src->iplen)) {
297	0	return 0;
298	0	}
299	0	}
300
301	96.4k	dest->poison = src->poison;
302
303	96.4k	return 1;
304	96.4k	}
305
306		int X509_VERIFY_PARAM_set1(X509_VERIFY_PARAM *to,
307	6.17k	const X509_VERIFY_PARAM *from) {
308	6.17k	unsigned long save_flags = to->inh_flags;
309	6.17k	int ret;
310	6.17k	to->inh_flags \|= X509_VP_FLAG_DEFAULT;
311	6.17k	ret = X509_VERIFY_PARAM_inherit(to, from);
312	6.17k	to->inh_flags = save_flags;
313	6.17k	return ret;
314	6.17k	}
315
316		static int int_x509_param_set1(char *pdest, size_t pdestlen, const char *src,
317	0	size_t srclen) {
318	0	void *tmp;
319	0	if (src == NULL \|\| srclen == 0) {
320		// Unlike OpenSSL, we do not allow an empty string to disable previously
321		// configured checks.
322	0	return 0;
323	0	}
324
325	0	tmp = OPENSSL_memdup(src, srclen);
326	0	if (!tmp) {
327	0	return 0;
328	0	}
329
330	0	if (*pdest) {
331	0	OPENSSL_free(*pdest);
332	0	}
333	0	*pdest = tmp;
334	0	if (pdestlen) {
335	0	*pdestlen = srclen;
336	0	}
337	0	return 1;
338	0	}
339
340	0	int X509_VERIFY_PARAM_set1_name(X509_VERIFY_PARAM param, const char name) {
341	0	if (param->name) {
342	0	OPENSSL_free(param->name);
343	0	}
344	0	param->name = OPENSSL_strdup(name);
345	0	if (param->name) {
346	0	return 1;
347	0	}
348	0	return 0;
349	0	}
350
351	0	int X509_VERIFY_PARAM_set_flags(X509_VERIFY_PARAM *param, unsigned long flags) {
352	0	param->flags \|= flags;
353	0	return 1;
354	0	}
355
356		int X509_VERIFY_PARAM_clear_flags(X509_VERIFY_PARAM *param,
357	0	unsigned long flags) {
358	0	param->flags &= ~flags;
359	0	return 1;
360	0	}
361
362	0	unsigned long X509_VERIFY_PARAM_get_flags(X509_VERIFY_PARAM *param) {
363	0	return param->flags;
364	0	}
365
366	0	int X509_VERIFY_PARAM_set_purpose(X509_VERIFY_PARAM *param, int purpose) {
367	0	return X509_PURPOSE_set(&param->purpose, purpose);
368	0	}
369
370	0	int X509_VERIFY_PARAM_set_trust(X509_VERIFY_PARAM *param, int trust) {
371	0	return X509_TRUST_set(&param->trust, trust);
372	0	}
373
374	0	void X509_VERIFY_PARAM_set_depth(X509_VERIFY_PARAM *param, int depth) {
375	0	param->depth = depth;
376	0	}
377
378	0	void X509_VERIFY_PARAM_set_time_posix(X509_VERIFY_PARAM *param, int64_t t) {
379	0	param->check_time = t;
380	0	param->flags \|= X509_V_FLAG_USE_CHECK_TIME;
381	0	}
382
383	0	void X509_VERIFY_PARAM_set_time(X509_VERIFY_PARAM *param, time_t t) {
384	0	X509_VERIFY_PARAM_set_time_posix(param, t);
385	0	}
386
387		int X509_VERIFY_PARAM_add0_policy(X509_VERIFY_PARAM *param,
388	0	ASN1_OBJECT *policy) {
389	0	if (!param->policies) {
390	0	param->policies = sk_ASN1_OBJECT_new_null();
391	0	if (!param->policies) {
392	0	return 0;
393	0	}
394	0	}
395	0	if (!sk_ASN1_OBJECT_push(param->policies, policy)) {
396	0	return 0;
397	0	}
398	0	return 1;
399	0	}
400
401		int X509_VERIFY_PARAM_set1_policies(X509_VERIFY_PARAM *param,
402	0	const STACK_OF(ASN1_OBJECT) *policies) {
403	0	if (!param) {
404	0	return 0;
405	0	}
406
407	0	sk_ASN1_OBJECT_pop_free(param->policies, ASN1_OBJECT_free);
408	0	if (!policies) {
409	0	param->policies = NULL;
410	0	return 1;
411	0	}
412
413	0	param->policies =
414	0	sk_ASN1_OBJECT_deep_copy(policies, OBJ_dup, ASN1_OBJECT_free);
415	0	if (!param->policies) {
416	0	return 0;
417	0	}
418
419	0	return 1;
420	0	}
421
422		int X509_VERIFY_PARAM_set1_host(X509_VERIFY_PARAM param, const char name,
423	0	size_t namelen) {
424	0	if (!int_x509_param_set_hosts(param, SET_HOST, name, namelen)) {
425	0	param->poison = 1;
426	0	return 0;
427	0	}
428	0	return 1;
429	0	}
430
431		int X509_VERIFY_PARAM_add1_host(X509_VERIFY_PARAM param, const char name,
432	0	size_t namelen) {
433	0	if (!int_x509_param_set_hosts(param, ADD_HOST, name, namelen)) {
434	0	param->poison = 1;
435	0	return 0;
436	0	}
437	0	return 1;
438	0	}
439
440		void X509_VERIFY_PARAM_set_hostflags(X509_VERIFY_PARAM *param,
441	0	unsigned int flags) {
442	0	param->hostflags = flags;
443	0	}
444
445	0	char X509_VERIFY_PARAM_get0_peername(X509_VERIFY_PARAM param) {
446	0	return param->peername;
447	0	}
448
449		int X509_VERIFY_PARAM_set1_email(X509_VERIFY_PARAM param, const char email,
450	0	size_t emaillen) {
451	0	if (OPENSSL_memchr(email, '\0', emaillen) != NULL \|\|
452	0	!int_x509_param_set1(&param->email, &param->emaillen, email, emaillen)) {
453	0	param->poison = 1;
454	0	return 0;
455	0	}
456
457	0	return 1;
458	0	}
459
460		int X509_VERIFY_PARAM_set1_ip(X509_VERIFY_PARAM param, const unsigned char ip,
461	0	size_t iplen) {
462	0	if ((iplen != 4 && iplen != 16) \|\|
463	0	!int_x509_param_set1((char *)&param->ip, &param->iplen, (char )ip,
464	0	iplen)) {
465	0	param->poison = 1;
466	0	return 0;
467	0	}
468
469	0	return 1;
470	0	}
471
472	0	int X509_VERIFY_PARAM_set1_ip_asc(X509_VERIFY_PARAM param, const char ipasc) {
473	0	unsigned char ipout[16];
474	0	size_t iplen;
475
476	0	iplen = (size_t)x509v3_a2i_ipadd(ipout, ipasc);
477	0	if (iplen == 0) {
478	0	return 0;
479	0	}
480	0	return X509_VERIFY_PARAM_set1_ip(param, ipout, iplen);
481	0	}
482
483	0	int X509_VERIFY_PARAM_get_depth(const X509_VERIFY_PARAM *param) {
484	0	return param->depth;
485	0	}
486
487	0	const char X509_VERIFY_PARAM_get0_name(const X509_VERIFY_PARAM param) {
488	0	return param->name;
489	0	}
490
491		#define vpm_empty_id NULL, 0U, NULL, NULL, 0, NULL, 0, 0
492
493		// Default verify parameters: these are used for various applications and can
494		// be overridden by the user specified table. NB: the 'name' field must be
495		// in alphabetical order because it will be searched using OBJ_search.
496
497		static const X509_VERIFY_PARAM default_table[] = {
498		{(char *)"default", // X509 default parameters
499		0, // Check time
500		0, // internal flags
501		X509_V_FLAG_TRUSTED_FIRST, // flags
502		0, // purpose
503		0, // trust
504		100, // depth
505		NULL, // policies
506		vpm_empty_id},
507		{(char *)"pkcs7", // S/MIME sign parameters
508		0, // Check time
509		0, // internal flags
510		0, // flags
511		X509_PURPOSE_SMIME_SIGN, // purpose
512		X509_TRUST_EMAIL, // trust
513		-1, // depth
514		NULL, // policies
515		vpm_empty_id},
516		{(char *)"smime_sign", // S/MIME sign parameters
517		0, // Check time
518		0, // internal flags
519		0, // flags
520		X509_PURPOSE_SMIME_SIGN, // purpose
521		X509_TRUST_EMAIL, // trust
522		-1, // depth
523		NULL, // policies
524		vpm_empty_id},
525		{(char *)"ssl_client", // SSL/TLS client parameters
526		0, // Check time
527		0, // internal flags
528		0, // flags
529		X509_PURPOSE_SSL_CLIENT, // purpose
530		X509_TRUST_SSL_CLIENT, // trust
531		-1, // depth
532		NULL, // policies
533		vpm_empty_id},
534		{(char *)"ssl_server", // SSL/TLS server parameters
535		0, // Check time
536		0, // internal flags
537		0, // flags
538		X509_PURPOSE_SSL_SERVER, // purpose
539		X509_TRUST_SSL_SERVER, // trust
540		-1, // depth
541		NULL, // policies
542		vpm_empty_id}};
543
544	12.3k	const X509_VERIFY_PARAM X509_VERIFY_PARAM_lookup(const char name) {
545	35.5k	for (size_t i = 0; i < OPENSSL_ARRAY_SIZE(default_table); i++) {
546	35.5k	if (strcmp(default_table[i].name, name) == 0) {
547	12.3k	return &default_table[i];
548	12.3k	}
549	35.5k	}
550	0	return NULL;
551	12.3k	}