1 | /*
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2 | * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
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3 | *
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4 | * Licensed under the OpenSSL license (the "License"). You may not use
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5 | * this file except in compliance with the License. You can obtain a copy
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6 | * in the file LICENSE in the source distribution or at
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7 | * https://www.openssl.org/source/license.html
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8 | */
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9 |
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10 | /* ====================================================================
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11 | * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
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12 | * ECC cipher suite support in OpenSSL originally developed by
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13 | * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
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14 | */
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15 | /* ====================================================================
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16 | * Copyright 2005 Nokia. All rights reserved.
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17 | *
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18 | * The portions of the attached software ("Contribution") is developed by
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19 | * Nokia Corporation and is licensed pursuant to the OpenSSL open source
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20 | * license.
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21 | *
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22 | * The Contribution, originally written by Mika Kousa and Pasi Eronen of
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23 | * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
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24 | * support (see RFC 4279) to OpenSSL.
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25 | *
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26 | * No patent licenses or other rights except those expressly stated in
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27 | * the OpenSSL open source license shall be deemed granted or received
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28 | * expressly, by implication, estoppel, or otherwise.
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29 | *
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30 | * No assurances are provided by Nokia that the Contribution does not
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31 | * infringe the patent or other intellectual property rights of any third
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32 | * party or that the license provides you with all the necessary rights
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33 | * to make use of the Contribution.
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34 | *
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35 | * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
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36 | * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
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37 | * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
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38 | * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
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39 | * OTHERWISE.
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40 | */
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41 |
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42 | #include <assert.h>
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43 | #include <stdio.h>
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44 | #include "ssl_locl.h"
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45 | #include <openssl/objects.h>
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46 | #include <openssl/lhash.h>
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47 | #include <openssl/x509v3.h>
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48 | #include <openssl/rand.h>
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49 | #include <openssl/ocsp.h>
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50 | #include <openssl/dh.h>
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51 | #include <openssl/engine.h>
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52 | #include <openssl/async.h>
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53 | #include <openssl/ct.h>
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54 |
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55 | const char SSL_version_str[] = OPENSSL_VERSION_TEXT;
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56 |
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57 | SSL3_ENC_METHOD ssl3_undef_enc_method = {
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58 | /*
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59 | * evil casts, but these functions are only called if there's a library
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60 | * bug
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61 | */
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62 | (int (*)(SSL *, SSL3_RECORD *, unsigned int, int))ssl_undefined_function,
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63 | (int (*)(SSL *, SSL3_RECORD *, unsigned char *, int))ssl_undefined_function,
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64 | ssl_undefined_function,
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65 | (int (*)(SSL *, unsigned char *, unsigned char *, int))
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66 | ssl_undefined_function,
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67 | (int (*)(SSL *, int))ssl_undefined_function,
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68 | (int (*)(SSL *, const char *, int, unsigned char *))
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69 | ssl_undefined_function,
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70 | 0, /* finish_mac_length */
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71 | NULL, /* client_finished_label */
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72 | 0, /* client_finished_label_len */
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73 | NULL, /* server_finished_label */
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74 | 0, /* server_finished_label_len */
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75 | (int (*)(int))ssl_undefined_function,
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76 | (int (*)(SSL *, unsigned char *, size_t, const char *,
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77 | size_t, const unsigned char *, size_t,
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78 | int use_context))ssl_undefined_function,
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79 | };
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80 |
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81 | struct ssl_async_args {
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82 | SSL *s;
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83 | void *buf;
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84 | int num;
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85 | enum { READFUNC, WRITEFUNC, OTHERFUNC } type;
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86 | union {
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87 | int (*func_read) (SSL *, void *, int);
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88 | int (*func_write) (SSL *, const void *, int);
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89 | int (*func_other) (SSL *);
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90 | } f;
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91 | };
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92 |
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93 | static const struct {
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94 | uint8_t mtype;
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95 | uint8_t ord;
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96 | int nid;
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97 | } dane_mds[] = {
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98 | {
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99 | DANETLS_MATCHING_FULL, 0, NID_undef
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100 | },
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101 | {
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102 | DANETLS_MATCHING_2256, 1, NID_sha256
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103 | },
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104 | {
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105 | DANETLS_MATCHING_2512, 2, NID_sha512
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106 | },
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107 | };
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108 |
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109 | static int dane_ctx_enable(struct dane_ctx_st *dctx)
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110 | {
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111 | const EVP_MD **mdevp;
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112 | uint8_t *mdord;
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113 | uint8_t mdmax = DANETLS_MATCHING_LAST;
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114 | int n = ((int)mdmax) + 1; /* int to handle PrivMatch(255) */
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115 | size_t i;
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116 |
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117 | if (dctx->mdevp != NULL)
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118 | return 1;
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119 |
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120 | mdevp = OPENSSL_zalloc(n * sizeof(*mdevp));
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121 | mdord = OPENSSL_zalloc(n * sizeof(*mdord));
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122 |
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123 | if (mdord == NULL || mdevp == NULL) {
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124 | OPENSSL_free(mdord);
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125 | OPENSSL_free(mdevp);
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126 | SSLerr(SSL_F_DANE_CTX_ENABLE, ERR_R_MALLOC_FAILURE);
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127 | return 0;
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128 | }
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129 |
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130 | /* Install default entries */
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131 | for (i = 0; i < OSSL_NELEM(dane_mds); ++i) {
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132 | const EVP_MD *md;
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133 |
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134 | if (dane_mds[i].nid == NID_undef ||
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135 | (md = EVP_get_digestbynid(dane_mds[i].nid)) == NULL)
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136 | continue;
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137 | mdevp[dane_mds[i].mtype] = md;
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138 | mdord[dane_mds[i].mtype] = dane_mds[i].ord;
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139 | }
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140 |
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141 | dctx->mdevp = mdevp;
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142 | dctx->mdord = mdord;
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143 | dctx->mdmax = mdmax;
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144 |
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145 | return 1;
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146 | }
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147 |
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148 | static void dane_ctx_final(struct dane_ctx_st *dctx)
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149 | {
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150 | OPENSSL_free(dctx->mdevp);
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151 | dctx->mdevp = NULL;
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152 |
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153 | OPENSSL_free(dctx->mdord);
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154 | dctx->mdord = NULL;
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155 | dctx->mdmax = 0;
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156 | }
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157 |
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158 | static void tlsa_free(danetls_record *t)
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159 | {
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160 | if (t == NULL)
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161 | return;
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162 | OPENSSL_free(t->data);
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163 | EVP_PKEY_free(t->spki);
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164 | OPENSSL_free(t);
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165 | }
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166 |
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167 | static void dane_final(SSL_DANE *dane)
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168 | {
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169 | sk_danetls_record_pop_free(dane->trecs, tlsa_free);
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170 | dane->trecs = NULL;
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171 |
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172 | sk_X509_pop_free(dane->certs, X509_free);
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173 | dane->certs = NULL;
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174 |
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175 | X509_free(dane->mcert);
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176 | dane->mcert = NULL;
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177 | dane->mtlsa = NULL;
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178 | dane->mdpth = -1;
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179 | dane->pdpth = -1;
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180 | }
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181 |
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182 | /*
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183 | * dane_copy - Copy dane configuration, sans verification state.
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184 | */
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185 | static int ssl_dane_dup(SSL *to, SSL *from)
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186 | {
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187 | int num;
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188 | int i;
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189 |
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190 | if (!DANETLS_ENABLED(&from->dane))
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191 | return 1;
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192 |
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193 | dane_final(&to->dane);
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194 | to->dane.flags = from->dane.flags;
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195 | to->dane.dctx = &to->ctx->dane;
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196 | to->dane.trecs = sk_danetls_record_new_null();
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197 |
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198 | if (to->dane.trecs == NULL) {
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199 | SSLerr(SSL_F_SSL_DANE_DUP, ERR_R_MALLOC_FAILURE);
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200 | return 0;
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201 | }
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202 |
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203 | num = sk_danetls_record_num(from->dane.trecs);
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204 | for (i = 0; i < num; ++i) {
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205 | danetls_record *t = sk_danetls_record_value(from->dane.trecs, i);
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206 |
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207 | if (SSL_dane_tlsa_add(to, t->usage, t->selector, t->mtype,
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208 | t->data, t->dlen) <= 0)
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209 | return 0;
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210 | }
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211 | return 1;
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212 | }
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213 |
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214 | static int dane_mtype_set(struct dane_ctx_st *dctx,
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215 | const EVP_MD *md, uint8_t mtype, uint8_t ord)
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216 | {
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217 | int i;
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218 |
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219 | if (mtype == DANETLS_MATCHING_FULL && md != NULL) {
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220 | SSLerr(SSL_F_DANE_MTYPE_SET, SSL_R_DANE_CANNOT_OVERRIDE_MTYPE_FULL);
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221 | return 0;
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222 | }
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223 |
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224 | if (mtype > dctx->mdmax) {
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225 | const EVP_MD **mdevp;
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226 | uint8_t *mdord;
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227 | int n = ((int)mtype) + 1;
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228 |
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229 | mdevp = OPENSSL_realloc(dctx->mdevp, n * sizeof(*mdevp));
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230 | if (mdevp == NULL) {
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231 | SSLerr(SSL_F_DANE_MTYPE_SET, ERR_R_MALLOC_FAILURE);
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232 | return -1;
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233 | }
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234 | dctx->mdevp = mdevp;
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235 |
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236 | mdord = OPENSSL_realloc(dctx->mdord, n * sizeof(*mdord));
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237 | if (mdord == NULL) {
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238 | SSLerr(SSL_F_DANE_MTYPE_SET, ERR_R_MALLOC_FAILURE);
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239 | return -1;
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240 | }
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241 | dctx->mdord = mdord;
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242 |
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243 | /* Zero-fill any gaps */
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244 | for (i = dctx->mdmax + 1; i < mtype; ++i) {
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245 | mdevp[i] = NULL;
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246 | mdord[i] = 0;
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247 | }
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248 |
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249 | dctx->mdmax = mtype;
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250 | }
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251 |
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252 | dctx->mdevp[mtype] = md;
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253 | /* Coerce ordinal of disabled matching types to 0 */
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254 | dctx->mdord[mtype] = (md == NULL) ? 0 : ord;
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255 |
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256 | return 1;
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257 | }
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258 |
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259 | static const EVP_MD *tlsa_md_get(SSL_DANE *dane, uint8_t mtype)
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260 | {
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261 | if (mtype > dane->dctx->mdmax)
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262 | return NULL;
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263 | return dane->dctx->mdevp[mtype];
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264 | }
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265 |
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266 | static int dane_tlsa_add(SSL_DANE *dane,
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267 | uint8_t usage,
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268 | uint8_t selector,
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269 | uint8_t mtype, unsigned char *data, size_t dlen)
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270 | {
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271 | danetls_record *t;
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272 | const EVP_MD *md = NULL;
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273 | int ilen = (int)dlen;
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274 | int i;
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275 | int num;
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276 |
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277 | if (dane->trecs == NULL) {
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278 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_NOT_ENABLED);
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279 | return -1;
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280 | }
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281 |
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282 | if (ilen < 0 || dlen != (size_t)ilen) {
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283 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_DATA_LENGTH);
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284 | return 0;
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285 | }
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286 |
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287 | if (usage > DANETLS_USAGE_LAST) {
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288 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_CERTIFICATE_USAGE);
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289 | return 0;
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290 | }
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291 |
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292 | if (selector > DANETLS_SELECTOR_LAST) {
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293 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_SELECTOR);
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294 | return 0;
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295 | }
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296 |
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297 | if (mtype != DANETLS_MATCHING_FULL) {
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298 | md = tlsa_md_get(dane, mtype);
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299 | if (md == NULL) {
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300 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_MATCHING_TYPE);
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301 | return 0;
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302 | }
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303 | }
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304 |
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305 | if (md != NULL && dlen != (size_t)EVP_MD_size(md)) {
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306 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_DIGEST_LENGTH);
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307 | return 0;
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308 | }
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309 | if (!data) {
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310 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_NULL_DATA);
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311 | return 0;
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312 | }
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313 |
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314 | if ((t = OPENSSL_zalloc(sizeof(*t))) == NULL) {
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315 | SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE);
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316 | return -1;
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317 | }
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318 |
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319 | t->usage = usage;
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320 | t->selector = selector;
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321 | t->mtype = mtype;
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322 | t->data = OPENSSL_malloc(ilen);
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323 | if (t->data == NULL) {
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324 | tlsa_free(t);
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325 | SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE);
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326 | return -1;
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327 | }
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328 | memcpy(t->data, data, ilen);
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329 | t->dlen = ilen;
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330 |
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331 | /* Validate and cache full certificate or public key */
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332 | if (mtype == DANETLS_MATCHING_FULL) {
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333 | const unsigned char *p = data;
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334 | X509 *cert = NULL;
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335 | EVP_PKEY *pkey = NULL;
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336 |
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337 | switch (selector) {
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338 | case DANETLS_SELECTOR_CERT:
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339 | if (!d2i_X509(&cert, &p, dlen) || p < data ||
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340 | dlen != (size_t)(p - data)) {
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341 | tlsa_free(t);
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342 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_CERTIFICATE);
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343 | return 0;
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344 | }
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345 | if (X509_get0_pubkey(cert) == NULL) {
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346 | tlsa_free(t);
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347 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_CERTIFICATE);
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348 | return 0;
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349 | }
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350 |
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351 | if ((DANETLS_USAGE_BIT(usage) & DANETLS_TA_MASK) == 0) {
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352 | X509_free(cert);
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353 | break;
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354 | }
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355 |
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356 | /*
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357 | * For usage DANE-TA(2), we support authentication via "2 0 0" TLSA
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358 | * records that contain full certificates of trust-anchors that are
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359 | * not present in the wire chain. For usage PKIX-TA(0), we augment
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360 | * the chain with untrusted Full(0) certificates from DNS, in case
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361 | * they are missing from the chain.
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362 | */
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363 | if ((dane->certs == NULL &&
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364 | (dane->certs = sk_X509_new_null()) == NULL) ||
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365 | !sk_X509_push(dane->certs, cert)) {
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366 | SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE);
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367 | X509_free(cert);
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368 | tlsa_free(t);
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369 | return -1;
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370 | }
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371 | break;
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372 |
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373 | case DANETLS_SELECTOR_SPKI:
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374 | if (!d2i_PUBKEY(&pkey, &p, dlen) || p < data ||
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375 | dlen != (size_t)(p - data)) {
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376 | tlsa_free(t);
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377 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_PUBLIC_KEY);
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378 | return 0;
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379 | }
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380 |
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381 | /*
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382 | * For usage DANE-TA(2), we support authentication via "2 1 0" TLSA
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383 | * records that contain full bare keys of trust-anchors that are
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384 | * not present in the wire chain.
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385 | */
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386 | if (usage == DANETLS_USAGE_DANE_TA)
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387 | t->spki = pkey;
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388 | else
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389 | EVP_PKEY_free(pkey);
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390 | break;
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391 | }
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392 | }
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393 |
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394 | /*-
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395 | * Find the right insertion point for the new record.
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396 | *
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397 | * See crypto/x509/x509_vfy.c. We sort DANE-EE(3) records first, so that
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398 | * they can be processed first, as they require no chain building, and no
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399 | * expiration or hostname checks. Because DANE-EE(3) is numerically
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400 | * largest, this is accomplished via descending sort by "usage".
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401 | *
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402 | * We also sort in descending order by matching ordinal to simplify
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403 | * the implementation of digest agility in the verification code.
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404 | *
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405 | * The choice of order for the selector is not significant, so we
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406 | * use the same descending order for consistency.
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407 | */
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408 | num = sk_danetls_record_num(dane->trecs);
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409 | for (i = 0; i < num; ++i) {
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410 | danetls_record *rec = sk_danetls_record_value(dane->trecs, i);
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411 |
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412 | if (rec->usage > usage)
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413 | continue;
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414 | if (rec->usage < usage)
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415 | break;
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416 | if (rec->selector > selector)
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417 | continue;
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418 | if (rec->selector < selector)
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419 | break;
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420 | if (dane->dctx->mdord[rec->mtype] > dane->dctx->mdord[mtype])
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421 | continue;
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422 | break;
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423 | }
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424 |
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425 | if (!sk_danetls_record_insert(dane->trecs, t, i)) {
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426 | tlsa_free(t);
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427 | SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE);
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428 | return -1;
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429 | }
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430 | dane->umask |= DANETLS_USAGE_BIT(usage);
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431 |
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432 | return 1;
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433 | }
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434 |
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435 | static void clear_ciphers(SSL *s)
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---|
436 | {
|
---|
437 | /* clear the current cipher */
|
---|
438 | ssl_clear_cipher_ctx(s);
|
---|
439 | ssl_clear_hash_ctx(&s->read_hash);
|
---|
440 | ssl_clear_hash_ctx(&s->write_hash);
|
---|
441 | }
|
---|
442 |
|
---|
443 | int SSL_clear(SSL *s)
|
---|
444 | {
|
---|
445 | if (s->method == NULL) {
|
---|
446 | SSLerr(SSL_F_SSL_CLEAR, SSL_R_NO_METHOD_SPECIFIED);
|
---|
447 | return (0);
|
---|
448 | }
|
---|
449 |
|
---|
450 | if (ssl_clear_bad_session(s)) {
|
---|
451 | SSL_SESSION_free(s->session);
|
---|
452 | s->session = NULL;
|
---|
453 | }
|
---|
454 |
|
---|
455 | s->error = 0;
|
---|
456 | s->hit = 0;
|
---|
457 | s->shutdown = 0;
|
---|
458 |
|
---|
459 | if (s->renegotiate) {
|
---|
460 | SSLerr(SSL_F_SSL_CLEAR, ERR_R_INTERNAL_ERROR);
|
---|
461 | return 0;
|
---|
462 | }
|
---|
463 |
|
---|
464 | ossl_statem_clear(s);
|
---|
465 |
|
---|
466 | s->version = s->method->version;
|
---|
467 | s->client_version = s->version;
|
---|
468 | s->rwstate = SSL_NOTHING;
|
---|
469 |
|
---|
470 | BUF_MEM_free(s->init_buf);
|
---|
471 | s->init_buf = NULL;
|
---|
472 | clear_ciphers(s);
|
---|
473 | s->first_packet = 0;
|
---|
474 |
|
---|
475 | /* Reset DANE verification result state */
|
---|
476 | s->dane.mdpth = -1;
|
---|
477 | s->dane.pdpth = -1;
|
---|
478 | X509_free(s->dane.mcert);
|
---|
479 | s->dane.mcert = NULL;
|
---|
480 | s->dane.mtlsa = NULL;
|
---|
481 |
|
---|
482 | /* Clear the verification result peername */
|
---|
483 | X509_VERIFY_PARAM_move_peername(s->param, NULL);
|
---|
484 |
|
---|
485 | /*
|
---|
486 | * Check to see if we were changed into a different method, if so, revert
|
---|
487 | * back if we are not doing session-id reuse.
|
---|
488 | */
|
---|
489 | if (!ossl_statem_get_in_handshake(s) && (s->session == NULL)
|
---|
490 | && (s->method != s->ctx->method)) {
|
---|
491 | s->method->ssl_free(s);
|
---|
492 | s->method = s->ctx->method;
|
---|
493 | if (!s->method->ssl_new(s))
|
---|
494 | return (0);
|
---|
495 | } else
|
---|
496 | s->method->ssl_clear(s);
|
---|
497 |
|
---|
498 | RECORD_LAYER_clear(&s->rlayer);
|
---|
499 |
|
---|
500 | return (1);
|
---|
501 | }
|
---|
502 |
|
---|
503 | /** Used to change an SSL_CTXs default SSL method type */
|
---|
504 | int SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *meth)
|
---|
505 | {
|
---|
506 | STACK_OF(SSL_CIPHER) *sk;
|
---|
507 |
|
---|
508 | ctx->method = meth;
|
---|
509 |
|
---|
510 | sk = ssl_create_cipher_list(ctx->method, &(ctx->cipher_list),
|
---|
511 | &(ctx->cipher_list_by_id),
|
---|
512 | SSL_DEFAULT_CIPHER_LIST, ctx->cert);
|
---|
513 | if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0)) {
|
---|
514 | SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
|
---|
515 | return (0);
|
---|
516 | }
|
---|
517 | return (1);
|
---|
518 | }
|
---|
519 |
|
---|
520 | SSL *SSL_new(SSL_CTX *ctx)
|
---|
521 | {
|
---|
522 | SSL *s;
|
---|
523 |
|
---|
524 | if (ctx == NULL) {
|
---|
525 | SSLerr(SSL_F_SSL_NEW, SSL_R_NULL_SSL_CTX);
|
---|
526 | return (NULL);
|
---|
527 | }
|
---|
528 | if (ctx->method == NULL) {
|
---|
529 | SSLerr(SSL_F_SSL_NEW, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);
|
---|
530 | return (NULL);
|
---|
531 | }
|
---|
532 |
|
---|
533 | s = OPENSSL_zalloc(sizeof(*s));
|
---|
534 | if (s == NULL)
|
---|
535 | goto err;
|
---|
536 |
|
---|
537 | s->lock = CRYPTO_THREAD_lock_new();
|
---|
538 | if (s->lock == NULL) {
|
---|
539 | SSLerr(SSL_F_SSL_NEW, ERR_R_MALLOC_FAILURE);
|
---|
540 | OPENSSL_free(s);
|
---|
541 | return NULL;
|
---|
542 | }
|
---|
543 |
|
---|
544 | RECORD_LAYER_init(&s->rlayer, s);
|
---|
545 |
|
---|
546 | s->options = ctx->options;
|
---|
547 | s->dane.flags = ctx->dane.flags;
|
---|
548 | s->min_proto_version = ctx->min_proto_version;
|
---|
549 | s->max_proto_version = ctx->max_proto_version;
|
---|
550 | s->mode = ctx->mode;
|
---|
551 | s->max_cert_list = ctx->max_cert_list;
|
---|
552 | s->references = 1;
|
---|
553 |
|
---|
554 | /*
|
---|
555 | * Earlier library versions used to copy the pointer to the CERT, not
|
---|
556 | * its contents; only when setting new parameters for the per-SSL
|
---|
557 | * copy, ssl_cert_new would be called (and the direct reference to
|
---|
558 | * the per-SSL_CTX settings would be lost, but those still were
|
---|
559 | * indirectly accessed for various purposes, and for that reason they
|
---|
560 | * used to be known as s->ctx->default_cert). Now we don't look at the
|
---|
561 | * SSL_CTX's CERT after having duplicated it once.
|
---|
562 | */
|
---|
563 | s->cert = ssl_cert_dup(ctx->cert);
|
---|
564 | if (s->cert == NULL)
|
---|
565 | goto err;
|
---|
566 |
|
---|
567 | RECORD_LAYER_set_read_ahead(&s->rlayer, ctx->read_ahead);
|
---|
568 | s->msg_callback = ctx->msg_callback;
|
---|
569 | s->msg_callback_arg = ctx->msg_callback_arg;
|
---|
570 | s->verify_mode = ctx->verify_mode;
|
---|
571 | s->not_resumable_session_cb = ctx->not_resumable_session_cb;
|
---|
572 | s->sid_ctx_length = ctx->sid_ctx_length;
|
---|
573 | OPENSSL_assert(s->sid_ctx_length <= sizeof s->sid_ctx);
|
---|
574 | memcpy(&s->sid_ctx, &ctx->sid_ctx, sizeof(s->sid_ctx));
|
---|
575 | s->verify_callback = ctx->default_verify_callback;
|
---|
576 | s->generate_session_id = ctx->generate_session_id;
|
---|
577 |
|
---|
578 | s->param = X509_VERIFY_PARAM_new();
|
---|
579 | if (s->param == NULL)
|
---|
580 | goto err;
|
---|
581 | X509_VERIFY_PARAM_inherit(s->param, ctx->param);
|
---|
582 | s->quiet_shutdown = ctx->quiet_shutdown;
|
---|
583 | s->max_send_fragment = ctx->max_send_fragment;
|
---|
584 | s->split_send_fragment = ctx->split_send_fragment;
|
---|
585 | s->max_pipelines = ctx->max_pipelines;
|
---|
586 | if (s->max_pipelines > 1)
|
---|
587 | RECORD_LAYER_set_read_ahead(&s->rlayer, 1);
|
---|
588 | if (ctx->default_read_buf_len > 0)
|
---|
589 | SSL_set_default_read_buffer_len(s, ctx->default_read_buf_len);
|
---|
590 |
|
---|
591 | SSL_CTX_up_ref(ctx);
|
---|
592 | s->ctx = ctx;
|
---|
593 | s->tlsext_debug_cb = 0;
|
---|
594 | s->tlsext_debug_arg = NULL;
|
---|
595 | s->tlsext_ticket_expected = 0;
|
---|
596 | s->tlsext_status_type = ctx->tlsext_status_type;
|
---|
597 | s->tlsext_status_expected = 0;
|
---|
598 | s->tlsext_ocsp_ids = NULL;
|
---|
599 | s->tlsext_ocsp_exts = NULL;
|
---|
600 | s->tlsext_ocsp_resp = NULL;
|
---|
601 | s->tlsext_ocsp_resplen = -1;
|
---|
602 | SSL_CTX_up_ref(ctx);
|
---|
603 | s->session_ctx = ctx;
|
---|
604 | #ifndef OPENSSL_NO_EC
|
---|
605 | if (ctx->tlsext_ecpointformatlist) {
|
---|
606 | s->tlsext_ecpointformatlist =
|
---|
607 | OPENSSL_memdup(ctx->tlsext_ecpointformatlist,
|
---|
608 | ctx->tlsext_ecpointformatlist_length);
|
---|
609 | if (!s->tlsext_ecpointformatlist)
|
---|
610 | goto err;
|
---|
611 | s->tlsext_ecpointformatlist_length =
|
---|
612 | ctx->tlsext_ecpointformatlist_length;
|
---|
613 | }
|
---|
614 | if (ctx->tlsext_ellipticcurvelist) {
|
---|
615 | s->tlsext_ellipticcurvelist =
|
---|
616 | OPENSSL_memdup(ctx->tlsext_ellipticcurvelist,
|
---|
617 | ctx->tlsext_ellipticcurvelist_length);
|
---|
618 | if (!s->tlsext_ellipticcurvelist)
|
---|
619 | goto err;
|
---|
620 | s->tlsext_ellipticcurvelist_length =
|
---|
621 | ctx->tlsext_ellipticcurvelist_length;
|
---|
622 | }
|
---|
623 | #endif
|
---|
624 | #ifndef OPENSSL_NO_NEXTPROTONEG
|
---|
625 | s->next_proto_negotiated = NULL;
|
---|
626 | #endif
|
---|
627 |
|
---|
628 | if (s->ctx->alpn_client_proto_list) {
|
---|
629 | s->alpn_client_proto_list =
|
---|
630 | OPENSSL_malloc(s->ctx->alpn_client_proto_list_len);
|
---|
631 | if (s->alpn_client_proto_list == NULL)
|
---|
632 | goto err;
|
---|
633 | memcpy(s->alpn_client_proto_list, s->ctx->alpn_client_proto_list,
|
---|
634 | s->ctx->alpn_client_proto_list_len);
|
---|
635 | s->alpn_client_proto_list_len = s->ctx->alpn_client_proto_list_len;
|
---|
636 | }
|
---|
637 |
|
---|
638 | s->verified_chain = NULL;
|
---|
639 | s->verify_result = X509_V_OK;
|
---|
640 |
|
---|
641 | s->default_passwd_callback = ctx->default_passwd_callback;
|
---|
642 | s->default_passwd_callback_userdata = ctx->default_passwd_callback_userdata;
|
---|
643 |
|
---|
644 | s->method = ctx->method;
|
---|
645 |
|
---|
646 | if (!s->method->ssl_new(s))
|
---|
647 | goto err;
|
---|
648 |
|
---|
649 | s->server = (ctx->method->ssl_accept == ssl_undefined_function) ? 0 : 1;
|
---|
650 |
|
---|
651 | if (!SSL_clear(s))
|
---|
652 | goto err;
|
---|
653 |
|
---|
654 | if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data))
|
---|
655 | goto err;
|
---|
656 |
|
---|
657 | #ifndef OPENSSL_NO_PSK
|
---|
658 | s->psk_client_callback = ctx->psk_client_callback;
|
---|
659 | s->psk_server_callback = ctx->psk_server_callback;
|
---|
660 | #endif
|
---|
661 |
|
---|
662 | s->job = NULL;
|
---|
663 |
|
---|
664 | #ifndef OPENSSL_NO_CT
|
---|
665 | if (!SSL_set_ct_validation_callback(s, ctx->ct_validation_callback,
|
---|
666 | ctx->ct_validation_callback_arg))
|
---|
667 | goto err;
|
---|
668 | #endif
|
---|
669 |
|
---|
670 | return s;
|
---|
671 | err:
|
---|
672 | SSL_free(s);
|
---|
673 | SSLerr(SSL_F_SSL_NEW, ERR_R_MALLOC_FAILURE);
|
---|
674 | return NULL;
|
---|
675 | }
|
---|
676 |
|
---|
677 | int SSL_is_dtls(const SSL *s)
|
---|
678 | {
|
---|
679 | return SSL_IS_DTLS(s) ? 1 : 0;
|
---|
680 | }
|
---|
681 |
|
---|
682 | int SSL_up_ref(SSL *s)
|
---|
683 | {
|
---|
684 | int i;
|
---|
685 |
|
---|
686 | if (CRYPTO_atomic_add(&s->references, 1, &i, s->lock) <= 0)
|
---|
687 | return 0;
|
---|
688 |
|
---|
689 | REF_PRINT_COUNT("SSL", s);
|
---|
690 | REF_ASSERT_ISNT(i < 2);
|
---|
691 | return ((i > 1) ? 1 : 0);
|
---|
692 | }
|
---|
693 |
|
---|
694 | int SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx,
|
---|
695 | unsigned int sid_ctx_len)
|
---|
696 | {
|
---|
697 | if (sid_ctx_len > sizeof ctx->sid_ctx) {
|
---|
698 | SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT,
|
---|
699 | SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
|
---|
700 | return 0;
|
---|
701 | }
|
---|
702 | ctx->sid_ctx_length = sid_ctx_len;
|
---|
703 | memcpy(ctx->sid_ctx, sid_ctx, sid_ctx_len);
|
---|
704 |
|
---|
705 | return 1;
|
---|
706 | }
|
---|
707 |
|
---|
708 | int SSL_set_session_id_context(SSL *ssl, const unsigned char *sid_ctx,
|
---|
709 | unsigned int sid_ctx_len)
|
---|
710 | {
|
---|
711 | if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) {
|
---|
712 | SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT,
|
---|
713 | SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
|
---|
714 | return 0;
|
---|
715 | }
|
---|
716 | ssl->sid_ctx_length = sid_ctx_len;
|
---|
717 | memcpy(ssl->sid_ctx, sid_ctx, sid_ctx_len);
|
---|
718 |
|
---|
719 | return 1;
|
---|
720 | }
|
---|
721 |
|
---|
722 | int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb)
|
---|
723 | {
|
---|
724 | CRYPTO_THREAD_write_lock(ctx->lock);
|
---|
725 | ctx->generate_session_id = cb;
|
---|
726 | CRYPTO_THREAD_unlock(ctx->lock);
|
---|
727 | return 1;
|
---|
728 | }
|
---|
729 |
|
---|
730 | int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb)
|
---|
731 | {
|
---|
732 | CRYPTO_THREAD_write_lock(ssl->lock);
|
---|
733 | ssl->generate_session_id = cb;
|
---|
734 | CRYPTO_THREAD_unlock(ssl->lock);
|
---|
735 | return 1;
|
---|
736 | }
|
---|
737 |
|
---|
738 | int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id,
|
---|
739 | unsigned int id_len)
|
---|
740 | {
|
---|
741 | /*
|
---|
742 | * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
|
---|
743 | * we can "construct" a session to give us the desired check - ie. to
|
---|
744 | * find if there's a session in the hash table that would conflict with
|
---|
745 | * any new session built out of this id/id_len and the ssl_version in use
|
---|
746 | * by this SSL.
|
---|
747 | */
|
---|
748 | SSL_SESSION r, *p;
|
---|
749 |
|
---|
750 | if (id_len > sizeof r.session_id)
|
---|
751 | return 0;
|
---|
752 |
|
---|
753 | r.ssl_version = ssl->version;
|
---|
754 | r.session_id_length = id_len;
|
---|
755 | memcpy(r.session_id, id, id_len);
|
---|
756 |
|
---|
757 | CRYPTO_THREAD_read_lock(ssl->session_ctx->lock);
|
---|
758 | p = lh_SSL_SESSION_retrieve(ssl->session_ctx->sessions, &r);
|
---|
759 | CRYPTO_THREAD_unlock(ssl->session_ctx->lock);
|
---|
760 | return (p != NULL);
|
---|
761 | }
|
---|
762 |
|
---|
763 | int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
|
---|
764 | {
|
---|
765 | return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
|
---|
766 | }
|
---|
767 |
|
---|
768 | int SSL_set_purpose(SSL *s, int purpose)
|
---|
769 | {
|
---|
770 | return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
|
---|
771 | }
|
---|
772 |
|
---|
773 | int SSL_CTX_set_trust(SSL_CTX *s, int trust)
|
---|
774 | {
|
---|
775 | return X509_VERIFY_PARAM_set_trust(s->param, trust);
|
---|
776 | }
|
---|
777 |
|
---|
778 | int SSL_set_trust(SSL *s, int trust)
|
---|
779 | {
|
---|
780 | return X509_VERIFY_PARAM_set_trust(s->param, trust);
|
---|
781 | }
|
---|
782 |
|
---|
783 | int SSL_set1_host(SSL *s, const char *hostname)
|
---|
784 | {
|
---|
785 | return X509_VERIFY_PARAM_set1_host(s->param, hostname, 0);
|
---|
786 | }
|
---|
787 |
|
---|
788 | int SSL_add1_host(SSL *s, const char *hostname)
|
---|
789 | {
|
---|
790 | return X509_VERIFY_PARAM_add1_host(s->param, hostname, 0);
|
---|
791 | }
|
---|
792 |
|
---|
793 | void SSL_set_hostflags(SSL *s, unsigned int flags)
|
---|
794 | {
|
---|
795 | X509_VERIFY_PARAM_set_hostflags(s->param, flags);
|
---|
796 | }
|
---|
797 |
|
---|
798 | const char *SSL_get0_peername(SSL *s)
|
---|
799 | {
|
---|
800 | return X509_VERIFY_PARAM_get0_peername(s->param);
|
---|
801 | }
|
---|
802 |
|
---|
803 | int SSL_CTX_dane_enable(SSL_CTX *ctx)
|
---|
804 | {
|
---|
805 | return dane_ctx_enable(&ctx->dane);
|
---|
806 | }
|
---|
807 |
|
---|
808 | unsigned long SSL_CTX_dane_set_flags(SSL_CTX *ctx, unsigned long flags)
|
---|
809 | {
|
---|
810 | unsigned long orig = ctx->dane.flags;
|
---|
811 |
|
---|
812 | ctx->dane.flags |= flags;
|
---|
813 | return orig;
|
---|
814 | }
|
---|
815 |
|
---|
816 | unsigned long SSL_CTX_dane_clear_flags(SSL_CTX *ctx, unsigned long flags)
|
---|
817 | {
|
---|
818 | unsigned long orig = ctx->dane.flags;
|
---|
819 |
|
---|
820 | ctx->dane.flags &= ~flags;
|
---|
821 | return orig;
|
---|
822 | }
|
---|
823 |
|
---|
824 | int SSL_dane_enable(SSL *s, const char *basedomain)
|
---|
825 | {
|
---|
826 | SSL_DANE *dane = &s->dane;
|
---|
827 |
|
---|
828 | if (s->ctx->dane.mdmax == 0) {
|
---|
829 | SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_CONTEXT_NOT_DANE_ENABLED);
|
---|
830 | return 0;
|
---|
831 | }
|
---|
832 | if (dane->trecs != NULL) {
|
---|
833 | SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_DANE_ALREADY_ENABLED);
|
---|
834 | return 0;
|
---|
835 | }
|
---|
836 |
|
---|
837 | /*
|
---|
838 | * Default SNI name. This rejects empty names, while set1_host below
|
---|
839 | * accepts them and disables host name checks. To avoid side-effects with
|
---|
840 | * invalid input, set the SNI name first.
|
---|
841 | */
|
---|
842 | if (s->tlsext_hostname == NULL) {
|
---|
843 | if (!SSL_set_tlsext_host_name(s, basedomain)) {
|
---|
844 | SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN);
|
---|
845 | return -1;
|
---|
846 | }
|
---|
847 | }
|
---|
848 |
|
---|
849 | /* Primary RFC6125 reference identifier */
|
---|
850 | if (!X509_VERIFY_PARAM_set1_host(s->param, basedomain, 0)) {
|
---|
851 | SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN);
|
---|
852 | return -1;
|
---|
853 | }
|
---|
854 |
|
---|
855 | dane->mdpth = -1;
|
---|
856 | dane->pdpth = -1;
|
---|
857 | dane->dctx = &s->ctx->dane;
|
---|
858 | dane->trecs = sk_danetls_record_new_null();
|
---|
859 |
|
---|
860 | if (dane->trecs == NULL) {
|
---|
861 | SSLerr(SSL_F_SSL_DANE_ENABLE, ERR_R_MALLOC_FAILURE);
|
---|
862 | return -1;
|
---|
863 | }
|
---|
864 | return 1;
|
---|
865 | }
|
---|
866 |
|
---|
867 | unsigned long SSL_dane_set_flags(SSL *ssl, unsigned long flags)
|
---|
868 | {
|
---|
869 | unsigned long orig = ssl->dane.flags;
|
---|
870 |
|
---|
871 | ssl->dane.flags |= flags;
|
---|
872 | return orig;
|
---|
873 | }
|
---|
874 |
|
---|
875 | unsigned long SSL_dane_clear_flags(SSL *ssl, unsigned long flags)
|
---|
876 | {
|
---|
877 | unsigned long orig = ssl->dane.flags;
|
---|
878 |
|
---|
879 | ssl->dane.flags &= ~flags;
|
---|
880 | return orig;
|
---|
881 | }
|
---|
882 |
|
---|
883 | int SSL_get0_dane_authority(SSL *s, X509 **mcert, EVP_PKEY **mspki)
|
---|
884 | {
|
---|
885 | SSL_DANE *dane = &s->dane;
|
---|
886 |
|
---|
887 | if (!DANETLS_ENABLED(dane) || s->verify_result != X509_V_OK)
|
---|
888 | return -1;
|
---|
889 | if (dane->mtlsa) {
|
---|
890 | if (mcert)
|
---|
891 | *mcert = dane->mcert;
|
---|
892 | if (mspki)
|
---|
893 | *mspki = (dane->mcert == NULL) ? dane->mtlsa->spki : NULL;
|
---|
894 | }
|
---|
895 | return dane->mdpth;
|
---|
896 | }
|
---|
897 |
|
---|
898 | int SSL_get0_dane_tlsa(SSL *s, uint8_t *usage, uint8_t *selector,
|
---|
899 | uint8_t *mtype, unsigned const char **data, size_t *dlen)
|
---|
900 | {
|
---|
901 | SSL_DANE *dane = &s->dane;
|
---|
902 |
|
---|
903 | if (!DANETLS_ENABLED(dane) || s->verify_result != X509_V_OK)
|
---|
904 | return -1;
|
---|
905 | if (dane->mtlsa) {
|
---|
906 | if (usage)
|
---|
907 | *usage = dane->mtlsa->usage;
|
---|
908 | if (selector)
|
---|
909 | *selector = dane->mtlsa->selector;
|
---|
910 | if (mtype)
|
---|
911 | *mtype = dane->mtlsa->mtype;
|
---|
912 | if (data)
|
---|
913 | *data = dane->mtlsa->data;
|
---|
914 | if (dlen)
|
---|
915 | *dlen = dane->mtlsa->dlen;
|
---|
916 | }
|
---|
917 | return dane->mdpth;
|
---|
918 | }
|
---|
919 |
|
---|
920 | SSL_DANE *SSL_get0_dane(SSL *s)
|
---|
921 | {
|
---|
922 | return &s->dane;
|
---|
923 | }
|
---|
924 |
|
---|
925 | int SSL_dane_tlsa_add(SSL *s, uint8_t usage, uint8_t selector,
|
---|
926 | uint8_t mtype, unsigned char *data, size_t dlen)
|
---|
927 | {
|
---|
928 | return dane_tlsa_add(&s->dane, usage, selector, mtype, data, dlen);
|
---|
929 | }
|
---|
930 |
|
---|
931 | int SSL_CTX_dane_mtype_set(SSL_CTX *ctx, const EVP_MD *md, uint8_t mtype,
|
---|
932 | uint8_t ord)
|
---|
933 | {
|
---|
934 | return dane_mtype_set(&ctx->dane, md, mtype, ord);
|
---|
935 | }
|
---|
936 |
|
---|
937 | int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm)
|
---|
938 | {
|
---|
939 | return X509_VERIFY_PARAM_set1(ctx->param, vpm);
|
---|
940 | }
|
---|
941 |
|
---|
942 | int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm)
|
---|
943 | {
|
---|
944 | return X509_VERIFY_PARAM_set1(ssl->param, vpm);
|
---|
945 | }
|
---|
946 |
|
---|
947 | X509_VERIFY_PARAM *SSL_CTX_get0_param(SSL_CTX *ctx)
|
---|
948 | {
|
---|
949 | return ctx->param;
|
---|
950 | }
|
---|
951 |
|
---|
952 | X509_VERIFY_PARAM *SSL_get0_param(SSL *ssl)
|
---|
953 | {
|
---|
954 | return ssl->param;
|
---|
955 | }
|
---|
956 |
|
---|
957 | void SSL_certs_clear(SSL *s)
|
---|
958 | {
|
---|
959 | ssl_cert_clear_certs(s->cert);
|
---|
960 | }
|
---|
961 |
|
---|
962 | void SSL_free(SSL *s)
|
---|
963 | {
|
---|
964 | int i;
|
---|
965 |
|
---|
966 | if (s == NULL)
|
---|
967 | return;
|
---|
968 |
|
---|
969 | CRYPTO_atomic_add(&s->references, -1, &i, s->lock);
|
---|
970 | REF_PRINT_COUNT("SSL", s);
|
---|
971 | if (i > 0)
|
---|
972 | return;
|
---|
973 | REF_ASSERT_ISNT(i < 0);
|
---|
974 |
|
---|
975 | X509_VERIFY_PARAM_free(s->param);
|
---|
976 | dane_final(&s->dane);
|
---|
977 | CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
|
---|
978 |
|
---|
979 | ssl_free_wbio_buffer(s);
|
---|
980 |
|
---|
981 | BIO_free_all(s->wbio);
|
---|
982 | BIO_free_all(s->rbio);
|
---|
983 |
|
---|
984 | BUF_MEM_free(s->init_buf);
|
---|
985 |
|
---|
986 | /* add extra stuff */
|
---|
987 | sk_SSL_CIPHER_free(s->cipher_list);
|
---|
988 | sk_SSL_CIPHER_free(s->cipher_list_by_id);
|
---|
989 |
|
---|
990 | /* Make the next call work :-) */
|
---|
991 | if (s->session != NULL) {
|
---|
992 | ssl_clear_bad_session(s);
|
---|
993 | SSL_SESSION_free(s->session);
|
---|
994 | }
|
---|
995 |
|
---|
996 | clear_ciphers(s);
|
---|
997 |
|
---|
998 | ssl_cert_free(s->cert);
|
---|
999 | /* Free up if allocated */
|
---|
1000 |
|
---|
1001 | OPENSSL_free(s->tlsext_hostname);
|
---|
1002 | SSL_CTX_free(s->session_ctx);
|
---|
1003 | #ifndef OPENSSL_NO_EC
|
---|
1004 | OPENSSL_free(s->tlsext_ecpointformatlist);
|
---|
1005 | OPENSSL_free(s->tlsext_ellipticcurvelist);
|
---|
1006 | #endif /* OPENSSL_NO_EC */
|
---|
1007 | sk_X509_EXTENSION_pop_free(s->tlsext_ocsp_exts, X509_EXTENSION_free);
|
---|
1008 | #ifndef OPENSSL_NO_OCSP
|
---|
1009 | sk_OCSP_RESPID_pop_free(s->tlsext_ocsp_ids, OCSP_RESPID_free);
|
---|
1010 | #endif
|
---|
1011 | #ifndef OPENSSL_NO_CT
|
---|
1012 | SCT_LIST_free(s->scts);
|
---|
1013 | OPENSSL_free(s->tlsext_scts);
|
---|
1014 | #endif
|
---|
1015 | OPENSSL_free(s->tlsext_ocsp_resp);
|
---|
1016 | OPENSSL_free(s->alpn_client_proto_list);
|
---|
1017 |
|
---|
1018 | sk_X509_NAME_pop_free(s->client_CA, X509_NAME_free);
|
---|
1019 |
|
---|
1020 | sk_X509_pop_free(s->verified_chain, X509_free);
|
---|
1021 |
|
---|
1022 | if (s->method != NULL)
|
---|
1023 | s->method->ssl_free(s);
|
---|
1024 |
|
---|
1025 | RECORD_LAYER_release(&s->rlayer);
|
---|
1026 |
|
---|
1027 | SSL_CTX_free(s->ctx);
|
---|
1028 |
|
---|
1029 | ASYNC_WAIT_CTX_free(s->waitctx);
|
---|
1030 |
|
---|
1031 | #if !defined(OPENSSL_NO_NEXTPROTONEG)
|
---|
1032 | OPENSSL_free(s->next_proto_negotiated);
|
---|
1033 | #endif
|
---|
1034 |
|
---|
1035 | #ifndef OPENSSL_NO_SRTP
|
---|
1036 | sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles);
|
---|
1037 | #endif
|
---|
1038 |
|
---|
1039 | CRYPTO_THREAD_lock_free(s->lock);
|
---|
1040 |
|
---|
1041 | OPENSSL_free(s);
|
---|
1042 | }
|
---|
1043 |
|
---|
1044 | void SSL_set0_rbio(SSL *s, BIO *rbio)
|
---|
1045 | {
|
---|
1046 | BIO_free_all(s->rbio);
|
---|
1047 | s->rbio = rbio;
|
---|
1048 | }
|
---|
1049 |
|
---|
1050 | void SSL_set0_wbio(SSL *s, BIO *wbio)
|
---|
1051 | {
|
---|
1052 | /*
|
---|
1053 | * If the output buffering BIO is still in place, remove it
|
---|
1054 | */
|
---|
1055 | if (s->bbio != NULL)
|
---|
1056 | s->wbio = BIO_pop(s->wbio);
|
---|
1057 |
|
---|
1058 | BIO_free_all(s->wbio);
|
---|
1059 | s->wbio = wbio;
|
---|
1060 |
|
---|
1061 | /* Re-attach |bbio| to the new |wbio|. */
|
---|
1062 | if (s->bbio != NULL)
|
---|
1063 | s->wbio = BIO_push(s->bbio, s->wbio);
|
---|
1064 | }
|
---|
1065 |
|
---|
1066 | void SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio)
|
---|
1067 | {
|
---|
1068 | /*
|
---|
1069 | * For historical reasons, this function has many different cases in
|
---|
1070 | * ownership handling.
|
---|
1071 | */
|
---|
1072 |
|
---|
1073 | /* If nothing has changed, do nothing */
|
---|
1074 | if (rbio == SSL_get_rbio(s) && wbio == SSL_get_wbio(s))
|
---|
1075 | return;
|
---|
1076 |
|
---|
1077 | /*
|
---|
1078 | * If the two arguments are equal then one fewer reference is granted by the
|
---|
1079 | * caller than we want to take
|
---|
1080 | */
|
---|
1081 | if (rbio != NULL && rbio == wbio)
|
---|
1082 | BIO_up_ref(rbio);
|
---|
1083 |
|
---|
1084 | /*
|
---|
1085 | * If only the wbio is changed only adopt one reference.
|
---|
1086 | */
|
---|
1087 | if (rbio == SSL_get_rbio(s)) {
|
---|
1088 | SSL_set0_wbio(s, wbio);
|
---|
1089 | return;
|
---|
1090 | }
|
---|
1091 | /*
|
---|
1092 | * There is an asymmetry here for historical reasons. If only the rbio is
|
---|
1093 | * changed AND the rbio and wbio were originally different, then we only
|
---|
1094 | * adopt one reference.
|
---|
1095 | */
|
---|
1096 | if (wbio == SSL_get_wbio(s) && SSL_get_rbio(s) != SSL_get_wbio(s)) {
|
---|
1097 | SSL_set0_rbio(s, rbio);
|
---|
1098 | return;
|
---|
1099 | }
|
---|
1100 |
|
---|
1101 | /* Otherwise, adopt both references. */
|
---|
1102 | SSL_set0_rbio(s, rbio);
|
---|
1103 | SSL_set0_wbio(s, wbio);
|
---|
1104 | }
|
---|
1105 |
|
---|
1106 | BIO *SSL_get_rbio(const SSL *s)
|
---|
1107 | {
|
---|
1108 | return s->rbio;
|
---|
1109 | }
|
---|
1110 |
|
---|
1111 | BIO *SSL_get_wbio(const SSL *s)
|
---|
1112 | {
|
---|
1113 | if (s->bbio != NULL) {
|
---|
1114 | /*
|
---|
1115 | * If |bbio| is active, the true caller-configured BIO is its
|
---|
1116 | * |next_bio|.
|
---|
1117 | */
|
---|
1118 | return BIO_next(s->bbio);
|
---|
1119 | }
|
---|
1120 | return s->wbio;
|
---|
1121 | }
|
---|
1122 |
|
---|
1123 | int SSL_get_fd(const SSL *s)
|
---|
1124 | {
|
---|
1125 | return SSL_get_rfd(s);
|
---|
1126 | }
|
---|
1127 |
|
---|
1128 | int SSL_get_rfd(const SSL *s)
|
---|
1129 | {
|
---|
1130 | int ret = -1;
|
---|
1131 | BIO *b, *r;
|
---|
1132 |
|
---|
1133 | b = SSL_get_rbio(s);
|
---|
1134 | r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
|
---|
1135 | if (r != NULL)
|
---|
1136 | BIO_get_fd(r, &ret);
|
---|
1137 | return (ret);
|
---|
1138 | }
|
---|
1139 |
|
---|
1140 | int SSL_get_wfd(const SSL *s)
|
---|
1141 | {
|
---|
1142 | int ret = -1;
|
---|
1143 | BIO *b, *r;
|
---|
1144 |
|
---|
1145 | b = SSL_get_wbio(s);
|
---|
1146 | r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
|
---|
1147 | if (r != NULL)
|
---|
1148 | BIO_get_fd(r, &ret);
|
---|
1149 | return (ret);
|
---|
1150 | }
|
---|
1151 |
|
---|
1152 | #ifndef OPENSSL_NO_SOCK
|
---|
1153 | int SSL_set_fd(SSL *s, int fd)
|
---|
1154 | {
|
---|
1155 | int ret = 0;
|
---|
1156 | BIO *bio = NULL;
|
---|
1157 |
|
---|
1158 | bio = BIO_new(BIO_s_socket());
|
---|
1159 |
|
---|
1160 | if (bio == NULL) {
|
---|
1161 | SSLerr(SSL_F_SSL_SET_FD, ERR_R_BUF_LIB);
|
---|
1162 | goto err;
|
---|
1163 | }
|
---|
1164 | BIO_set_fd(bio, fd, BIO_NOCLOSE);
|
---|
1165 | SSL_set_bio(s, bio, bio);
|
---|
1166 | ret = 1;
|
---|
1167 | err:
|
---|
1168 | return (ret);
|
---|
1169 | }
|
---|
1170 |
|
---|
1171 | int SSL_set_wfd(SSL *s, int fd)
|
---|
1172 | {
|
---|
1173 | BIO *rbio = SSL_get_rbio(s);
|
---|
1174 |
|
---|
1175 | if (rbio == NULL || BIO_method_type(rbio) != BIO_TYPE_SOCKET
|
---|
1176 | || (int)BIO_get_fd(rbio, NULL) != fd) {
|
---|
1177 | BIO *bio = BIO_new(BIO_s_socket());
|
---|
1178 |
|
---|
1179 | if (bio == NULL) {
|
---|
1180 | SSLerr(SSL_F_SSL_SET_WFD, ERR_R_BUF_LIB);
|
---|
1181 | return 0;
|
---|
1182 | }
|
---|
1183 | BIO_set_fd(bio, fd, BIO_NOCLOSE);
|
---|
1184 | SSL_set0_wbio(s, bio);
|
---|
1185 | } else {
|
---|
1186 | BIO_up_ref(rbio);
|
---|
1187 | SSL_set0_wbio(s, rbio);
|
---|
1188 | }
|
---|
1189 | return 1;
|
---|
1190 | }
|
---|
1191 |
|
---|
1192 | int SSL_set_rfd(SSL *s, int fd)
|
---|
1193 | {
|
---|
1194 | BIO *wbio = SSL_get_wbio(s);
|
---|
1195 |
|
---|
1196 | if (wbio == NULL || BIO_method_type(wbio) != BIO_TYPE_SOCKET
|
---|
1197 | || ((int)BIO_get_fd(wbio, NULL) != fd)) {
|
---|
1198 | BIO *bio = BIO_new(BIO_s_socket());
|
---|
1199 |
|
---|
1200 | if (bio == NULL) {
|
---|
1201 | SSLerr(SSL_F_SSL_SET_RFD, ERR_R_BUF_LIB);
|
---|
1202 | return 0;
|
---|
1203 | }
|
---|
1204 | BIO_set_fd(bio, fd, BIO_NOCLOSE);
|
---|
1205 | SSL_set0_rbio(s, bio);
|
---|
1206 | } else {
|
---|
1207 | BIO_up_ref(wbio);
|
---|
1208 | SSL_set0_rbio(s, wbio);
|
---|
1209 | }
|
---|
1210 |
|
---|
1211 | return 1;
|
---|
1212 | }
|
---|
1213 | #endif
|
---|
1214 |
|
---|
1215 | /* return length of latest Finished message we sent, copy to 'buf' */
|
---|
1216 | size_t SSL_get_finished(const SSL *s, void *buf, size_t count)
|
---|
1217 | {
|
---|
1218 | size_t ret = 0;
|
---|
1219 |
|
---|
1220 | if (s->s3 != NULL) {
|
---|
1221 | ret = s->s3->tmp.finish_md_len;
|
---|
1222 | if (count > ret)
|
---|
1223 | count = ret;
|
---|
1224 | memcpy(buf, s->s3->tmp.finish_md, count);
|
---|
1225 | }
|
---|
1226 | return ret;
|
---|
1227 | }
|
---|
1228 |
|
---|
1229 | /* return length of latest Finished message we expected, copy to 'buf' */
|
---|
1230 | size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count)
|
---|
1231 | {
|
---|
1232 | size_t ret = 0;
|
---|
1233 |
|
---|
1234 | if (s->s3 != NULL) {
|
---|
1235 | ret = s->s3->tmp.peer_finish_md_len;
|
---|
1236 | if (count > ret)
|
---|
1237 | count = ret;
|
---|
1238 | memcpy(buf, s->s3->tmp.peer_finish_md, count);
|
---|
1239 | }
|
---|
1240 | return ret;
|
---|
1241 | }
|
---|
1242 |
|
---|
1243 | int SSL_get_verify_mode(const SSL *s)
|
---|
1244 | {
|
---|
1245 | return (s->verify_mode);
|
---|
1246 | }
|
---|
1247 |
|
---|
1248 | int SSL_get_verify_depth(const SSL *s)
|
---|
1249 | {
|
---|
1250 | return X509_VERIFY_PARAM_get_depth(s->param);
|
---|
1251 | }
|
---|
1252 |
|
---|
1253 | int (*SSL_get_verify_callback(const SSL *s)) (int, X509_STORE_CTX *) {
|
---|
1254 | return (s->verify_callback);
|
---|
1255 | }
|
---|
1256 |
|
---|
1257 | int SSL_CTX_get_verify_mode(const SSL_CTX *ctx)
|
---|
1258 | {
|
---|
1259 | return (ctx->verify_mode);
|
---|
1260 | }
|
---|
1261 |
|
---|
1262 | int SSL_CTX_get_verify_depth(const SSL_CTX *ctx)
|
---|
1263 | {
|
---|
1264 | return X509_VERIFY_PARAM_get_depth(ctx->param);
|
---|
1265 | }
|
---|
1266 |
|
---|
1267 | int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx)) (int, X509_STORE_CTX *) {
|
---|
1268 | return (ctx->default_verify_callback);
|
---|
1269 | }
|
---|
1270 |
|
---|
1271 | void SSL_set_verify(SSL *s, int mode,
|
---|
1272 | int (*callback) (int ok, X509_STORE_CTX *ctx))
|
---|
1273 | {
|
---|
1274 | s->verify_mode = mode;
|
---|
1275 | if (callback != NULL)
|
---|
1276 | s->verify_callback = callback;
|
---|
1277 | }
|
---|
1278 |
|
---|
1279 | void SSL_set_verify_depth(SSL *s, int depth)
|
---|
1280 | {
|
---|
1281 | X509_VERIFY_PARAM_set_depth(s->param, depth);
|
---|
1282 | }
|
---|
1283 |
|
---|
1284 | void SSL_set_read_ahead(SSL *s, int yes)
|
---|
1285 | {
|
---|
1286 | RECORD_LAYER_set_read_ahead(&s->rlayer, yes);
|
---|
1287 | }
|
---|
1288 |
|
---|
1289 | int SSL_get_read_ahead(const SSL *s)
|
---|
1290 | {
|
---|
1291 | return RECORD_LAYER_get_read_ahead(&s->rlayer);
|
---|
1292 | }
|
---|
1293 |
|
---|
1294 | int SSL_pending(const SSL *s)
|
---|
1295 | {
|
---|
1296 | /*
|
---|
1297 | * SSL_pending cannot work properly if read-ahead is enabled
|
---|
1298 | * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is
|
---|
1299 | * impossible to fix since SSL_pending cannot report errors that may be
|
---|
1300 | * observed while scanning the new data. (Note that SSL_pending() is
|
---|
1301 | * often used as a boolean value, so we'd better not return -1.)
|
---|
1302 | */
|
---|
1303 | return (s->method->ssl_pending(s));
|
---|
1304 | }
|
---|
1305 |
|
---|
1306 | int SSL_has_pending(const SSL *s)
|
---|
1307 | {
|
---|
1308 | /*
|
---|
1309 | * Similar to SSL_pending() but returns a 1 to indicate that we have
|
---|
1310 | * unprocessed data available or 0 otherwise (as opposed to the number of
|
---|
1311 | * bytes available). Unlike SSL_pending() this will take into account
|
---|
1312 | * read_ahead data. A 1 return simply indicates that we have unprocessed
|
---|
1313 | * data. That data may not result in any application data, or we may fail
|
---|
1314 | * to parse the records for some reason.
|
---|
1315 | */
|
---|
1316 | if (SSL_pending(s))
|
---|
1317 | return 1;
|
---|
1318 |
|
---|
1319 | return RECORD_LAYER_read_pending(&s->rlayer);
|
---|
1320 | }
|
---|
1321 |
|
---|
1322 | X509 *SSL_get_peer_certificate(const SSL *s)
|
---|
1323 | {
|
---|
1324 | X509 *r;
|
---|
1325 |
|
---|
1326 | if ((s == NULL) || (s->session == NULL))
|
---|
1327 | r = NULL;
|
---|
1328 | else
|
---|
1329 | r = s->session->peer;
|
---|
1330 |
|
---|
1331 | if (r == NULL)
|
---|
1332 | return (r);
|
---|
1333 |
|
---|
1334 | X509_up_ref(r);
|
---|
1335 |
|
---|
1336 | return (r);
|
---|
1337 | }
|
---|
1338 |
|
---|
1339 | STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s)
|
---|
1340 | {
|
---|
1341 | STACK_OF(X509) *r;
|
---|
1342 |
|
---|
1343 | if ((s == NULL) || (s->session == NULL))
|
---|
1344 | r = NULL;
|
---|
1345 | else
|
---|
1346 | r = s->session->peer_chain;
|
---|
1347 |
|
---|
1348 | /*
|
---|
1349 | * If we are a client, cert_chain includes the peer's own certificate; if
|
---|
1350 | * we are a server, it does not.
|
---|
1351 | */
|
---|
1352 |
|
---|
1353 | return (r);
|
---|
1354 | }
|
---|
1355 |
|
---|
1356 | /*
|
---|
1357 | * Now in theory, since the calling process own 't' it should be safe to
|
---|
1358 | * modify. We need to be able to read f without being hassled
|
---|
1359 | */
|
---|
1360 | int SSL_copy_session_id(SSL *t, const SSL *f)
|
---|
1361 | {
|
---|
1362 | int i;
|
---|
1363 | /* Do we need to to SSL locking? */
|
---|
1364 | if (!SSL_set_session(t, SSL_get_session(f))) {
|
---|
1365 | return 0;
|
---|
1366 | }
|
---|
1367 |
|
---|
1368 | /*
|
---|
1369 | * what if we are setup for one protocol version but want to talk another
|
---|
1370 | */
|
---|
1371 | if (t->method != f->method) {
|
---|
1372 | t->method->ssl_free(t);
|
---|
1373 | t->method = f->method;
|
---|
1374 | if (t->method->ssl_new(t) == 0)
|
---|
1375 | return 0;
|
---|
1376 | }
|
---|
1377 |
|
---|
1378 | CRYPTO_atomic_add(&f->cert->references, 1, &i, f->cert->lock);
|
---|
1379 | ssl_cert_free(t->cert);
|
---|
1380 | t->cert = f->cert;
|
---|
1381 | if (!SSL_set_session_id_context(t, f->sid_ctx, f->sid_ctx_length)) {
|
---|
1382 | return 0;
|
---|
1383 | }
|
---|
1384 |
|
---|
1385 | return 1;
|
---|
1386 | }
|
---|
1387 |
|
---|
1388 | /* Fix this so it checks all the valid key/cert options */
|
---|
1389 | int SSL_CTX_check_private_key(const SSL_CTX *ctx)
|
---|
1390 | {
|
---|
1391 | if ((ctx == NULL) || (ctx->cert->key->x509 == NULL)) {
|
---|
1392 | SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY, SSL_R_NO_CERTIFICATE_ASSIGNED);
|
---|
1393 | return (0);
|
---|
1394 | }
|
---|
1395 | if (ctx->cert->key->privatekey == NULL) {
|
---|
1396 | SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY, SSL_R_NO_PRIVATE_KEY_ASSIGNED);
|
---|
1397 | return (0);
|
---|
1398 | }
|
---|
1399 | return (X509_check_private_key
|
---|
1400 | (ctx->cert->key->x509, ctx->cert->key->privatekey));
|
---|
1401 | }
|
---|
1402 |
|
---|
1403 | /* Fix this function so that it takes an optional type parameter */
|
---|
1404 | int SSL_check_private_key(const SSL *ssl)
|
---|
1405 | {
|
---|
1406 | if (ssl == NULL) {
|
---|
1407 | SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, ERR_R_PASSED_NULL_PARAMETER);
|
---|
1408 | return (0);
|
---|
1409 | }
|
---|
1410 | if (ssl->cert->key->x509 == NULL) {
|
---|
1411 | SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_CERTIFICATE_ASSIGNED);
|
---|
1412 | return (0);
|
---|
1413 | }
|
---|
1414 | if (ssl->cert->key->privatekey == NULL) {
|
---|
1415 | SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_PRIVATE_KEY_ASSIGNED);
|
---|
1416 | return (0);
|
---|
1417 | }
|
---|
1418 | return (X509_check_private_key(ssl->cert->key->x509,
|
---|
1419 | ssl->cert->key->privatekey));
|
---|
1420 | }
|
---|
1421 |
|
---|
1422 | int SSL_waiting_for_async(SSL *s)
|
---|
1423 | {
|
---|
1424 | if (s->job)
|
---|
1425 | return 1;
|
---|
1426 |
|
---|
1427 | return 0;
|
---|
1428 | }
|
---|
1429 |
|
---|
1430 | int SSL_get_all_async_fds(SSL *s, OSSL_ASYNC_FD *fds, size_t *numfds)
|
---|
1431 | {
|
---|
1432 | ASYNC_WAIT_CTX *ctx = s->waitctx;
|
---|
1433 |
|
---|
1434 | if (ctx == NULL)
|
---|
1435 | return 0;
|
---|
1436 | return ASYNC_WAIT_CTX_get_all_fds(ctx, fds, numfds);
|
---|
1437 | }
|
---|
1438 |
|
---|
1439 | int SSL_get_changed_async_fds(SSL *s, OSSL_ASYNC_FD *addfd, size_t *numaddfds,
|
---|
1440 | OSSL_ASYNC_FD *delfd, size_t *numdelfds)
|
---|
1441 | {
|
---|
1442 | ASYNC_WAIT_CTX *ctx = s->waitctx;
|
---|
1443 |
|
---|
1444 | if (ctx == NULL)
|
---|
1445 | return 0;
|
---|
1446 | return ASYNC_WAIT_CTX_get_changed_fds(ctx, addfd, numaddfds, delfd,
|
---|
1447 | numdelfds);
|
---|
1448 | }
|
---|
1449 |
|
---|
1450 | int SSL_accept(SSL *s)
|
---|
1451 | {
|
---|
1452 | if (s->handshake_func == NULL) {
|
---|
1453 | /* Not properly initialized yet */
|
---|
1454 | SSL_set_accept_state(s);
|
---|
1455 | }
|
---|
1456 |
|
---|
1457 | return SSL_do_handshake(s);
|
---|
1458 | }
|
---|
1459 |
|
---|
1460 | int SSL_connect(SSL *s)
|
---|
1461 | {
|
---|
1462 | if (s->handshake_func == NULL) {
|
---|
1463 | /* Not properly initialized yet */
|
---|
1464 | SSL_set_connect_state(s);
|
---|
1465 | }
|
---|
1466 |
|
---|
1467 | return SSL_do_handshake(s);
|
---|
1468 | }
|
---|
1469 |
|
---|
1470 | long SSL_get_default_timeout(const SSL *s)
|
---|
1471 | {
|
---|
1472 | return (s->method->get_timeout());
|
---|
1473 | }
|
---|
1474 |
|
---|
1475 | static int ssl_start_async_job(SSL *s, struct ssl_async_args *args,
|
---|
1476 | int (*func) (void *))
|
---|
1477 | {
|
---|
1478 | int ret;
|
---|
1479 | if (s->waitctx == NULL) {
|
---|
1480 | s->waitctx = ASYNC_WAIT_CTX_new();
|
---|
1481 | if (s->waitctx == NULL)
|
---|
1482 | return -1;
|
---|
1483 | }
|
---|
1484 | switch (ASYNC_start_job(&s->job, s->waitctx, &ret, func, args,
|
---|
1485 | sizeof(struct ssl_async_args))) {
|
---|
1486 | case ASYNC_ERR:
|
---|
1487 | s->rwstate = SSL_NOTHING;
|
---|
1488 | SSLerr(SSL_F_SSL_START_ASYNC_JOB, SSL_R_FAILED_TO_INIT_ASYNC);
|
---|
1489 | return -1;
|
---|
1490 | case ASYNC_PAUSE:
|
---|
1491 | s->rwstate = SSL_ASYNC_PAUSED;
|
---|
1492 | return -1;
|
---|
1493 | case ASYNC_NO_JOBS:
|
---|
1494 | s->rwstate = SSL_ASYNC_NO_JOBS;
|
---|
1495 | return -1;
|
---|
1496 | case ASYNC_FINISH:
|
---|
1497 | s->job = NULL;
|
---|
1498 | return ret;
|
---|
1499 | default:
|
---|
1500 | s->rwstate = SSL_NOTHING;
|
---|
1501 | SSLerr(SSL_F_SSL_START_ASYNC_JOB, ERR_R_INTERNAL_ERROR);
|
---|
1502 | /* Shouldn't happen */
|
---|
1503 | return -1;
|
---|
1504 | }
|
---|
1505 | }
|
---|
1506 |
|
---|
1507 | static int ssl_io_intern(void *vargs)
|
---|
1508 | {
|
---|
1509 | struct ssl_async_args *args;
|
---|
1510 | SSL *s;
|
---|
1511 | void *buf;
|
---|
1512 | int num;
|
---|
1513 |
|
---|
1514 | args = (struct ssl_async_args *)vargs;
|
---|
1515 | s = args->s;
|
---|
1516 | buf = args->buf;
|
---|
1517 | num = args->num;
|
---|
1518 | switch (args->type) {
|
---|
1519 | case READFUNC:
|
---|
1520 | return args->f.func_read(s, buf, num);
|
---|
1521 | case WRITEFUNC:
|
---|
1522 | return args->f.func_write(s, buf, num);
|
---|
1523 | case OTHERFUNC:
|
---|
1524 | return args->f.func_other(s);
|
---|
1525 | }
|
---|
1526 | return -1;
|
---|
1527 | }
|
---|
1528 |
|
---|
1529 | int SSL_read(SSL *s, void *buf, int num)
|
---|
1530 | {
|
---|
1531 | if (s->handshake_func == NULL) {
|
---|
1532 | SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED);
|
---|
1533 | return -1;
|
---|
1534 | }
|
---|
1535 |
|
---|
1536 | if (s->shutdown & SSL_RECEIVED_SHUTDOWN) {
|
---|
1537 | s->rwstate = SSL_NOTHING;
|
---|
1538 | return (0);
|
---|
1539 | }
|
---|
1540 |
|
---|
1541 | if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
|
---|
1542 | struct ssl_async_args args;
|
---|
1543 |
|
---|
1544 | args.s = s;
|
---|
1545 | args.buf = buf;
|
---|
1546 | args.num = num;
|
---|
1547 | args.type = READFUNC;
|
---|
1548 | args.f.func_read = s->method->ssl_read;
|
---|
1549 |
|
---|
1550 | return ssl_start_async_job(s, &args, ssl_io_intern);
|
---|
1551 | } else {
|
---|
1552 | return s->method->ssl_read(s, buf, num);
|
---|
1553 | }
|
---|
1554 | }
|
---|
1555 |
|
---|
1556 | int SSL_peek(SSL *s, void *buf, int num)
|
---|
1557 | {
|
---|
1558 | if (s->handshake_func == NULL) {
|
---|
1559 | SSLerr(SSL_F_SSL_PEEK, SSL_R_UNINITIALIZED);
|
---|
1560 | return -1;
|
---|
1561 | }
|
---|
1562 |
|
---|
1563 | if (s->shutdown & SSL_RECEIVED_SHUTDOWN) {
|
---|
1564 | return (0);
|
---|
1565 | }
|
---|
1566 | if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
|
---|
1567 | struct ssl_async_args args;
|
---|
1568 |
|
---|
1569 | args.s = s;
|
---|
1570 | args.buf = buf;
|
---|
1571 | args.num = num;
|
---|
1572 | args.type = READFUNC;
|
---|
1573 | args.f.func_read = s->method->ssl_peek;
|
---|
1574 |
|
---|
1575 | return ssl_start_async_job(s, &args, ssl_io_intern);
|
---|
1576 | } else {
|
---|
1577 | return s->method->ssl_peek(s, buf, num);
|
---|
1578 | }
|
---|
1579 | }
|
---|
1580 |
|
---|
1581 | int SSL_write(SSL *s, const void *buf, int num)
|
---|
1582 | {
|
---|
1583 | if (s->handshake_func == NULL) {
|
---|
1584 | SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED);
|
---|
1585 | return -1;
|
---|
1586 | }
|
---|
1587 |
|
---|
1588 | if (s->shutdown & SSL_SENT_SHUTDOWN) {
|
---|
1589 | s->rwstate = SSL_NOTHING;
|
---|
1590 | SSLerr(SSL_F_SSL_WRITE, SSL_R_PROTOCOL_IS_SHUTDOWN);
|
---|
1591 | return (-1);
|
---|
1592 | }
|
---|
1593 |
|
---|
1594 | if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
|
---|
1595 | struct ssl_async_args args;
|
---|
1596 |
|
---|
1597 | args.s = s;
|
---|
1598 | args.buf = (void *)buf;
|
---|
1599 | args.num = num;
|
---|
1600 | args.type = WRITEFUNC;
|
---|
1601 | args.f.func_write = s->method->ssl_write;
|
---|
1602 |
|
---|
1603 | return ssl_start_async_job(s, &args, ssl_io_intern);
|
---|
1604 | } else {
|
---|
1605 | return s->method->ssl_write(s, buf, num);
|
---|
1606 | }
|
---|
1607 | }
|
---|
1608 |
|
---|
1609 | int SSL_shutdown(SSL *s)
|
---|
1610 | {
|
---|
1611 | /*
|
---|
1612 | * Note that this function behaves differently from what one might
|
---|
1613 | * expect. Return values are 0 for no success (yet), 1 for success; but
|
---|
1614 | * calling it once is usually not enough, even if blocking I/O is used
|
---|
1615 | * (see ssl3_shutdown).
|
---|
1616 | */
|
---|
1617 |
|
---|
1618 | if (s->handshake_func == NULL) {
|
---|
1619 | SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED);
|
---|
1620 | return -1;
|
---|
1621 | }
|
---|
1622 |
|
---|
1623 | if (!SSL_in_init(s)) {
|
---|
1624 | if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
|
---|
1625 | struct ssl_async_args args;
|
---|
1626 |
|
---|
1627 | args.s = s;
|
---|
1628 | args.type = OTHERFUNC;
|
---|
1629 | args.f.func_other = s->method->ssl_shutdown;
|
---|
1630 |
|
---|
1631 | return ssl_start_async_job(s, &args, ssl_io_intern);
|
---|
1632 | } else {
|
---|
1633 | return s->method->ssl_shutdown(s);
|
---|
1634 | }
|
---|
1635 | } else {
|
---|
1636 | SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_SHUTDOWN_WHILE_IN_INIT);
|
---|
1637 | return -1;
|
---|
1638 | }
|
---|
1639 | }
|
---|
1640 |
|
---|
1641 | int SSL_renegotiate(SSL *s)
|
---|
1642 | {
|
---|
1643 | if (s->renegotiate == 0)
|
---|
1644 | s->renegotiate = 1;
|
---|
1645 |
|
---|
1646 | s->new_session = 1;
|
---|
1647 |
|
---|
1648 | return (s->method->ssl_renegotiate(s));
|
---|
1649 | }
|
---|
1650 |
|
---|
1651 | int SSL_renegotiate_abbreviated(SSL *s)
|
---|
1652 | {
|
---|
1653 | if (s->renegotiate == 0)
|
---|
1654 | s->renegotiate = 1;
|
---|
1655 |
|
---|
1656 | s->new_session = 0;
|
---|
1657 |
|
---|
1658 | return (s->method->ssl_renegotiate(s));
|
---|
1659 | }
|
---|
1660 |
|
---|
1661 | int SSL_renegotiate_pending(SSL *s)
|
---|
1662 | {
|
---|
1663 | /*
|
---|
1664 | * becomes true when negotiation is requested; false again once a
|
---|
1665 | * handshake has finished
|
---|
1666 | */
|
---|
1667 | return (s->renegotiate != 0);
|
---|
1668 | }
|
---|
1669 |
|
---|
1670 | long SSL_ctrl(SSL *s, int cmd, long larg, void *parg)
|
---|
1671 | {
|
---|
1672 | long l;
|
---|
1673 |
|
---|
1674 | switch (cmd) {
|
---|
1675 | case SSL_CTRL_GET_READ_AHEAD:
|
---|
1676 | return (RECORD_LAYER_get_read_ahead(&s->rlayer));
|
---|
1677 | case SSL_CTRL_SET_READ_AHEAD:
|
---|
1678 | l = RECORD_LAYER_get_read_ahead(&s->rlayer);
|
---|
1679 | RECORD_LAYER_set_read_ahead(&s->rlayer, larg);
|
---|
1680 | return (l);
|
---|
1681 |
|
---|
1682 | case SSL_CTRL_SET_MSG_CALLBACK_ARG:
|
---|
1683 | s->msg_callback_arg = parg;
|
---|
1684 | return 1;
|
---|
1685 |
|
---|
1686 | case SSL_CTRL_MODE:
|
---|
1687 | return (s->mode |= larg);
|
---|
1688 | case SSL_CTRL_CLEAR_MODE:
|
---|
1689 | return (s->mode &= ~larg);
|
---|
1690 | case SSL_CTRL_GET_MAX_CERT_LIST:
|
---|
1691 | return (s->max_cert_list);
|
---|
1692 | case SSL_CTRL_SET_MAX_CERT_LIST:
|
---|
1693 | l = s->max_cert_list;
|
---|
1694 | s->max_cert_list = larg;
|
---|
1695 | return (l);
|
---|
1696 | case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
|
---|
1697 | if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
|
---|
1698 | return 0;
|
---|
1699 | s->max_send_fragment = larg;
|
---|
1700 | if (s->max_send_fragment < s->split_send_fragment)
|
---|
1701 | s->split_send_fragment = s->max_send_fragment;
|
---|
1702 | return 1;
|
---|
1703 | case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT:
|
---|
1704 | if ((unsigned int)larg > s->max_send_fragment || larg == 0)
|
---|
1705 | return 0;
|
---|
1706 | s->split_send_fragment = larg;
|
---|
1707 | return 1;
|
---|
1708 | case SSL_CTRL_SET_MAX_PIPELINES:
|
---|
1709 | if (larg < 1 || larg > SSL_MAX_PIPELINES)
|
---|
1710 | return 0;
|
---|
1711 | s->max_pipelines = larg;
|
---|
1712 | if (larg > 1)
|
---|
1713 | RECORD_LAYER_set_read_ahead(&s->rlayer, 1);
|
---|
1714 | return 1;
|
---|
1715 | case SSL_CTRL_GET_RI_SUPPORT:
|
---|
1716 | if (s->s3)
|
---|
1717 | return s->s3->send_connection_binding;
|
---|
1718 | else
|
---|
1719 | return 0;
|
---|
1720 | case SSL_CTRL_CERT_FLAGS:
|
---|
1721 | return (s->cert->cert_flags |= larg);
|
---|
1722 | case SSL_CTRL_CLEAR_CERT_FLAGS:
|
---|
1723 | return (s->cert->cert_flags &= ~larg);
|
---|
1724 |
|
---|
1725 | case SSL_CTRL_GET_RAW_CIPHERLIST:
|
---|
1726 | if (parg) {
|
---|
1727 | if (s->s3->tmp.ciphers_raw == NULL)
|
---|
1728 | return 0;
|
---|
1729 | *(unsigned char **)parg = s->s3->tmp.ciphers_raw;
|
---|
1730 | return (int)s->s3->tmp.ciphers_rawlen;
|
---|
1731 | } else {
|
---|
1732 | return TLS_CIPHER_LEN;
|
---|
1733 | }
|
---|
1734 | case SSL_CTRL_GET_EXTMS_SUPPORT:
|
---|
1735 | if (!s->session || SSL_in_init(s) || ossl_statem_get_in_handshake(s))
|
---|
1736 | return -1;
|
---|
1737 | if (s->session->flags & SSL_SESS_FLAG_EXTMS)
|
---|
1738 | return 1;
|
---|
1739 | else
|
---|
1740 | return 0;
|
---|
1741 | case SSL_CTRL_SET_MIN_PROTO_VERSION:
|
---|
1742 | return ssl_set_version_bound(s->ctx->method->version, (int)larg,
|
---|
1743 | &s->min_proto_version);
|
---|
1744 | case SSL_CTRL_SET_MAX_PROTO_VERSION:
|
---|
1745 | return ssl_set_version_bound(s->ctx->method->version, (int)larg,
|
---|
1746 | &s->max_proto_version);
|
---|
1747 | default:
|
---|
1748 | return (s->method->ssl_ctrl(s, cmd, larg, parg));
|
---|
1749 | }
|
---|
1750 | }
|
---|
1751 |
|
---|
1752 | long SSL_callback_ctrl(SSL *s, int cmd, void (*fp) (void))
|
---|
1753 | {
|
---|
1754 | switch (cmd) {
|
---|
1755 | case SSL_CTRL_SET_MSG_CALLBACK:
|
---|
1756 | s->msg_callback = (void (*)
|
---|
1757 | (int write_p, int version, int content_type,
|
---|
1758 | const void *buf, size_t len, SSL *ssl,
|
---|
1759 | void *arg))(fp);
|
---|
1760 | return 1;
|
---|
1761 |
|
---|
1762 | default:
|
---|
1763 | return (s->method->ssl_callback_ctrl(s, cmd, fp));
|
---|
1764 | }
|
---|
1765 | }
|
---|
1766 |
|
---|
1767 | LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx)
|
---|
1768 | {
|
---|
1769 | return ctx->sessions;
|
---|
1770 | }
|
---|
1771 |
|
---|
1772 | long SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg)
|
---|
1773 | {
|
---|
1774 | long l;
|
---|
1775 | /* For some cases with ctx == NULL perform syntax checks */
|
---|
1776 | if (ctx == NULL) {
|
---|
1777 | switch (cmd) {
|
---|
1778 | #ifndef OPENSSL_NO_EC
|
---|
1779 | case SSL_CTRL_SET_CURVES_LIST:
|
---|
1780 | return tls1_set_curves_list(NULL, NULL, parg);
|
---|
1781 | #endif
|
---|
1782 | case SSL_CTRL_SET_SIGALGS_LIST:
|
---|
1783 | case SSL_CTRL_SET_CLIENT_SIGALGS_LIST:
|
---|
1784 | return tls1_set_sigalgs_list(NULL, parg, 0);
|
---|
1785 | default:
|
---|
1786 | return 0;
|
---|
1787 | }
|
---|
1788 | }
|
---|
1789 |
|
---|
1790 | switch (cmd) {
|
---|
1791 | case SSL_CTRL_GET_READ_AHEAD:
|
---|
1792 | return (ctx->read_ahead);
|
---|
1793 | case SSL_CTRL_SET_READ_AHEAD:
|
---|
1794 | l = ctx->read_ahead;
|
---|
1795 | ctx->read_ahead = larg;
|
---|
1796 | return (l);
|
---|
1797 |
|
---|
1798 | case SSL_CTRL_SET_MSG_CALLBACK_ARG:
|
---|
1799 | ctx->msg_callback_arg = parg;
|
---|
1800 | return 1;
|
---|
1801 |
|
---|
1802 | case SSL_CTRL_GET_MAX_CERT_LIST:
|
---|
1803 | return (ctx->max_cert_list);
|
---|
1804 | case SSL_CTRL_SET_MAX_CERT_LIST:
|
---|
1805 | l = ctx->max_cert_list;
|
---|
1806 | ctx->max_cert_list = larg;
|
---|
1807 | return (l);
|
---|
1808 |
|
---|
1809 | case SSL_CTRL_SET_SESS_CACHE_SIZE:
|
---|
1810 | l = ctx->session_cache_size;
|
---|
1811 | ctx->session_cache_size = larg;
|
---|
1812 | return (l);
|
---|
1813 | case SSL_CTRL_GET_SESS_CACHE_SIZE:
|
---|
1814 | return (ctx->session_cache_size);
|
---|
1815 | case SSL_CTRL_SET_SESS_CACHE_MODE:
|
---|
1816 | l = ctx->session_cache_mode;
|
---|
1817 | ctx->session_cache_mode = larg;
|
---|
1818 | return (l);
|
---|
1819 | case SSL_CTRL_GET_SESS_CACHE_MODE:
|
---|
1820 | return (ctx->session_cache_mode);
|
---|
1821 |
|
---|
1822 | case SSL_CTRL_SESS_NUMBER:
|
---|
1823 | return (lh_SSL_SESSION_num_items(ctx->sessions));
|
---|
1824 | case SSL_CTRL_SESS_CONNECT:
|
---|
1825 | return (ctx->stats.sess_connect);
|
---|
1826 | case SSL_CTRL_SESS_CONNECT_GOOD:
|
---|
1827 | return (ctx->stats.sess_connect_good);
|
---|
1828 | case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
|
---|
1829 | return (ctx->stats.sess_connect_renegotiate);
|
---|
1830 | case SSL_CTRL_SESS_ACCEPT:
|
---|
1831 | return (ctx->stats.sess_accept);
|
---|
1832 | case SSL_CTRL_SESS_ACCEPT_GOOD:
|
---|
1833 | return (ctx->stats.sess_accept_good);
|
---|
1834 | case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
|
---|
1835 | return (ctx->stats.sess_accept_renegotiate);
|
---|
1836 | case SSL_CTRL_SESS_HIT:
|
---|
1837 | return (ctx->stats.sess_hit);
|
---|
1838 | case SSL_CTRL_SESS_CB_HIT:
|
---|
1839 | return (ctx->stats.sess_cb_hit);
|
---|
1840 | case SSL_CTRL_SESS_MISSES:
|
---|
1841 | return (ctx->stats.sess_miss);
|
---|
1842 | case SSL_CTRL_SESS_TIMEOUTS:
|
---|
1843 | return (ctx->stats.sess_timeout);
|
---|
1844 | case SSL_CTRL_SESS_CACHE_FULL:
|
---|
1845 | return (ctx->stats.sess_cache_full);
|
---|
1846 | case SSL_CTRL_MODE:
|
---|
1847 | return (ctx->mode |= larg);
|
---|
1848 | case SSL_CTRL_CLEAR_MODE:
|
---|
1849 | return (ctx->mode &= ~larg);
|
---|
1850 | case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
|
---|
1851 | if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
|
---|
1852 | return 0;
|
---|
1853 | ctx->max_send_fragment = larg;
|
---|
1854 | if (ctx->max_send_fragment < ctx->split_send_fragment)
|
---|
1855 | ctx->split_send_fragment = ctx->max_send_fragment;
|
---|
1856 | return 1;
|
---|
1857 | case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT:
|
---|
1858 | if ((unsigned int)larg > ctx->max_send_fragment || larg == 0)
|
---|
1859 | return 0;
|
---|
1860 | ctx->split_send_fragment = larg;
|
---|
1861 | return 1;
|
---|
1862 | case SSL_CTRL_SET_MAX_PIPELINES:
|
---|
1863 | if (larg < 1 || larg > SSL_MAX_PIPELINES)
|
---|
1864 | return 0;
|
---|
1865 | ctx->max_pipelines = larg;
|
---|
1866 | return 1;
|
---|
1867 | case SSL_CTRL_CERT_FLAGS:
|
---|
1868 | return (ctx->cert->cert_flags |= larg);
|
---|
1869 | case SSL_CTRL_CLEAR_CERT_FLAGS:
|
---|
1870 | return (ctx->cert->cert_flags &= ~larg);
|
---|
1871 | case SSL_CTRL_SET_MIN_PROTO_VERSION:
|
---|
1872 | return ssl_set_version_bound(ctx->method->version, (int)larg,
|
---|
1873 | &ctx->min_proto_version);
|
---|
1874 | case SSL_CTRL_SET_MAX_PROTO_VERSION:
|
---|
1875 | return ssl_set_version_bound(ctx->method->version, (int)larg,
|
---|
1876 | &ctx->max_proto_version);
|
---|
1877 | default:
|
---|
1878 | return (ctx->method->ssl_ctx_ctrl(ctx, cmd, larg, parg));
|
---|
1879 | }
|
---|
1880 | }
|
---|
1881 |
|
---|
1882 | long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp) (void))
|
---|
1883 | {
|
---|
1884 | switch (cmd) {
|
---|
1885 | case SSL_CTRL_SET_MSG_CALLBACK:
|
---|
1886 | ctx->msg_callback = (void (*)
|
---|
1887 | (int write_p, int version, int content_type,
|
---|
1888 | const void *buf, size_t len, SSL *ssl,
|
---|
1889 | void *arg))(fp);
|
---|
1890 | return 1;
|
---|
1891 |
|
---|
1892 | default:
|
---|
1893 | return (ctx->method->ssl_ctx_callback_ctrl(ctx, cmd, fp));
|
---|
1894 | }
|
---|
1895 | }
|
---|
1896 |
|
---|
1897 | int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
|
---|
1898 | {
|
---|
1899 | if (a->id > b->id)
|
---|
1900 | return 1;
|
---|
1901 | if (a->id < b->id)
|
---|
1902 | return -1;
|
---|
1903 | return 0;
|
---|
1904 | }
|
---|
1905 |
|
---|
1906 | int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap,
|
---|
1907 | const SSL_CIPHER *const *bp)
|
---|
1908 | {
|
---|
1909 | if ((*ap)->id > (*bp)->id)
|
---|
1910 | return 1;
|
---|
1911 | if ((*ap)->id < (*bp)->id)
|
---|
1912 | return -1;
|
---|
1913 | return 0;
|
---|
1914 | }
|
---|
1915 |
|
---|
1916 | /** return a STACK of the ciphers available for the SSL and in order of
|
---|
1917 | * preference */
|
---|
1918 | STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s)
|
---|
1919 | {
|
---|
1920 | if (s != NULL) {
|
---|
1921 | if (s->cipher_list != NULL) {
|
---|
1922 | return (s->cipher_list);
|
---|
1923 | } else if ((s->ctx != NULL) && (s->ctx->cipher_list != NULL)) {
|
---|
1924 | return (s->ctx->cipher_list);
|
---|
1925 | }
|
---|
1926 | }
|
---|
1927 | return (NULL);
|
---|
1928 | }
|
---|
1929 |
|
---|
1930 | STACK_OF(SSL_CIPHER) *SSL_get_client_ciphers(const SSL *s)
|
---|
1931 | {
|
---|
1932 | if ((s == NULL) || (s->session == NULL) || !s->server)
|
---|
1933 | return NULL;
|
---|
1934 | return s->session->ciphers;
|
---|
1935 | }
|
---|
1936 |
|
---|
1937 | STACK_OF(SSL_CIPHER) *SSL_get1_supported_ciphers(SSL *s)
|
---|
1938 | {
|
---|
1939 | STACK_OF(SSL_CIPHER) *sk = NULL, *ciphers;
|
---|
1940 | int i;
|
---|
1941 | ciphers = SSL_get_ciphers(s);
|
---|
1942 | if (!ciphers)
|
---|
1943 | return NULL;
|
---|
1944 | ssl_set_client_disabled(s);
|
---|
1945 | for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) {
|
---|
1946 | const SSL_CIPHER *c = sk_SSL_CIPHER_value(ciphers, i);
|
---|
1947 | if (!ssl_cipher_disabled(s, c, SSL_SECOP_CIPHER_SUPPORTED)) {
|
---|
1948 | if (!sk)
|
---|
1949 | sk = sk_SSL_CIPHER_new_null();
|
---|
1950 | if (!sk)
|
---|
1951 | return NULL;
|
---|
1952 | if (!sk_SSL_CIPHER_push(sk, c)) {
|
---|
1953 | sk_SSL_CIPHER_free(sk);
|
---|
1954 | return NULL;
|
---|
1955 | }
|
---|
1956 | }
|
---|
1957 | }
|
---|
1958 | return sk;
|
---|
1959 | }
|
---|
1960 |
|
---|
1961 | /** return a STACK of the ciphers available for the SSL and in order of
|
---|
1962 | * algorithm id */
|
---|
1963 | STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
|
---|
1964 | {
|
---|
1965 | if (s != NULL) {
|
---|
1966 | if (s->cipher_list_by_id != NULL) {
|
---|
1967 | return (s->cipher_list_by_id);
|
---|
1968 | } else if ((s->ctx != NULL) && (s->ctx->cipher_list_by_id != NULL)) {
|
---|
1969 | return (s->ctx->cipher_list_by_id);
|
---|
1970 | }
|
---|
1971 | }
|
---|
1972 | return (NULL);
|
---|
1973 | }
|
---|
1974 |
|
---|
1975 | /** The old interface to get the same thing as SSL_get_ciphers() */
|
---|
1976 | const char *SSL_get_cipher_list(const SSL *s, int n)
|
---|
1977 | {
|
---|
1978 | const SSL_CIPHER *c;
|
---|
1979 | STACK_OF(SSL_CIPHER) *sk;
|
---|
1980 |
|
---|
1981 | if (s == NULL)
|
---|
1982 | return (NULL);
|
---|
1983 | sk = SSL_get_ciphers(s);
|
---|
1984 | if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
|
---|
1985 | return (NULL);
|
---|
1986 | c = sk_SSL_CIPHER_value(sk, n);
|
---|
1987 | if (c == NULL)
|
---|
1988 | return (NULL);
|
---|
1989 | return (c->name);
|
---|
1990 | }
|
---|
1991 |
|
---|
1992 | /** return a STACK of the ciphers available for the SSL_CTX and in order of
|
---|
1993 | * preference */
|
---|
1994 | STACK_OF(SSL_CIPHER) *SSL_CTX_get_ciphers(const SSL_CTX *ctx)
|
---|
1995 | {
|
---|
1996 | if (ctx != NULL)
|
---|
1997 | return ctx->cipher_list;
|
---|
1998 | return NULL;
|
---|
1999 | }
|
---|
2000 |
|
---|
2001 | /** specify the ciphers to be used by default by the SSL_CTX */
|
---|
2002 | int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
|
---|
2003 | {
|
---|
2004 | STACK_OF(SSL_CIPHER) *sk;
|
---|
2005 |
|
---|
2006 | sk = ssl_create_cipher_list(ctx->method, &ctx->cipher_list,
|
---|
2007 | &ctx->cipher_list_by_id, str, ctx->cert);
|
---|
2008 | /*
|
---|
2009 | * ssl_create_cipher_list may return an empty stack if it was unable to
|
---|
2010 | * find a cipher matching the given rule string (for example if the rule
|
---|
2011 | * string specifies a cipher which has been disabled). This is not an
|
---|
2012 | * error as far as ssl_create_cipher_list is concerned, and hence
|
---|
2013 | * ctx->cipher_list and ctx->cipher_list_by_id has been updated.
|
---|
2014 | */
|
---|
2015 | if (sk == NULL)
|
---|
2016 | return 0;
|
---|
2017 | else if (sk_SSL_CIPHER_num(sk) == 0) {
|
---|
2018 | SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
|
---|
2019 | return 0;
|
---|
2020 | }
|
---|
2021 | return 1;
|
---|
2022 | }
|
---|
2023 |
|
---|
2024 | /** specify the ciphers to be used by the SSL */
|
---|
2025 | int SSL_set_cipher_list(SSL *s, const char *str)
|
---|
2026 | {
|
---|
2027 | STACK_OF(SSL_CIPHER) *sk;
|
---|
2028 |
|
---|
2029 | sk = ssl_create_cipher_list(s->ctx->method, &s->cipher_list,
|
---|
2030 | &s->cipher_list_by_id, str, s->cert);
|
---|
2031 | /* see comment in SSL_CTX_set_cipher_list */
|
---|
2032 | if (sk == NULL)
|
---|
2033 | return 0;
|
---|
2034 | else if (sk_SSL_CIPHER_num(sk) == 0) {
|
---|
2035 | SSLerr(SSL_F_SSL_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
|
---|
2036 | return 0;
|
---|
2037 | }
|
---|
2038 | return 1;
|
---|
2039 | }
|
---|
2040 |
|
---|
2041 | char *SSL_get_shared_ciphers(const SSL *s, char *buf, int len)
|
---|
2042 | {
|
---|
2043 | char *p;
|
---|
2044 | STACK_OF(SSL_CIPHER) *sk;
|
---|
2045 | const SSL_CIPHER *c;
|
---|
2046 | int i;
|
---|
2047 |
|
---|
2048 | if ((s->session == NULL) || (s->session->ciphers == NULL) || (len < 2))
|
---|
2049 | return (NULL);
|
---|
2050 |
|
---|
2051 | p = buf;
|
---|
2052 | sk = s->session->ciphers;
|
---|
2053 |
|
---|
2054 | if (sk_SSL_CIPHER_num(sk) == 0)
|
---|
2055 | return NULL;
|
---|
2056 |
|
---|
2057 | for (i = 0; i < sk_SSL_CIPHER_num(sk); i++) {
|
---|
2058 | int n;
|
---|
2059 |
|
---|
2060 | c = sk_SSL_CIPHER_value(sk, i);
|
---|
2061 | n = strlen(c->name);
|
---|
2062 | if (n + 1 > len) {
|
---|
2063 | if (p != buf)
|
---|
2064 | --p;
|
---|
2065 | *p = '\0';
|
---|
2066 | return buf;
|
---|
2067 | }
|
---|
2068 | memcpy(p, c->name, n + 1);
|
---|
2069 | p += n;
|
---|
2070 | *(p++) = ':';
|
---|
2071 | len -= n + 1;
|
---|
2072 | }
|
---|
2073 | p[-1] = '\0';
|
---|
2074 | return (buf);
|
---|
2075 | }
|
---|
2076 |
|
---|
2077 | /** return a servername extension value if provided in Client Hello, or NULL.
|
---|
2078 | * So far, only host_name types are defined (RFC 3546).
|
---|
2079 | */
|
---|
2080 |
|
---|
2081 | const char *SSL_get_servername(const SSL *s, const int type)
|
---|
2082 | {
|
---|
2083 | if (type != TLSEXT_NAMETYPE_host_name)
|
---|
2084 | return NULL;
|
---|
2085 |
|
---|
2086 | return s->session && !s->tlsext_hostname ?
|
---|
2087 | s->session->tlsext_hostname : s->tlsext_hostname;
|
---|
2088 | }
|
---|
2089 |
|
---|
2090 | int SSL_get_servername_type(const SSL *s)
|
---|
2091 | {
|
---|
2092 | if (s->session
|
---|
2093 | && (!s->tlsext_hostname ? s->session->
|
---|
2094 | tlsext_hostname : s->tlsext_hostname))
|
---|
2095 | return TLSEXT_NAMETYPE_host_name;
|
---|
2096 | return -1;
|
---|
2097 | }
|
---|
2098 |
|
---|
2099 | /*
|
---|
2100 | * SSL_select_next_proto implements the standard protocol selection. It is
|
---|
2101 | * expected that this function is called from the callback set by
|
---|
2102 | * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a
|
---|
2103 | * vector of 8-bit, length prefixed byte strings. The length byte itself is
|
---|
2104 | * not included in the length. A byte string of length 0 is invalid. No byte
|
---|
2105 | * string may be truncated. The current, but experimental algorithm for
|
---|
2106 | * selecting the protocol is: 1) If the server doesn't support NPN then this
|
---|
2107 | * is indicated to the callback. In this case, the client application has to
|
---|
2108 | * abort the connection or have a default application level protocol. 2) If
|
---|
2109 | * the server supports NPN, but advertises an empty list then the client
|
---|
2110 | * selects the first protocol in its list, but indicates via the API that this
|
---|
2111 | * fallback case was enacted. 3) Otherwise, the client finds the first
|
---|
2112 | * protocol in the server's list that it supports and selects this protocol.
|
---|
2113 | * This is because it's assumed that the server has better information about
|
---|
2114 | * which protocol a client should use. 4) If the client doesn't support any
|
---|
2115 | * of the server's advertised protocols, then this is treated the same as
|
---|
2116 | * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was
|
---|
2117 | * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
|
---|
2118 | */
|
---|
2119 | int SSL_select_next_proto(unsigned char **out, unsigned char *outlen,
|
---|
2120 | const unsigned char *server,
|
---|
2121 | unsigned int server_len,
|
---|
2122 | const unsigned char *client, unsigned int client_len)
|
---|
2123 | {
|
---|
2124 | unsigned int i, j;
|
---|
2125 | const unsigned char *result;
|
---|
2126 | int status = OPENSSL_NPN_UNSUPPORTED;
|
---|
2127 |
|
---|
2128 | /*
|
---|
2129 | * For each protocol in server preference order, see if we support it.
|
---|
2130 | */
|
---|
2131 | for (i = 0; i < server_len;) {
|
---|
2132 | for (j = 0; j < client_len;) {
|
---|
2133 | if (server[i] == client[j] &&
|
---|
2134 | memcmp(&server[i + 1], &client[j + 1], server[i]) == 0) {
|
---|
2135 | /* We found a match */
|
---|
2136 | result = &server[i];
|
---|
2137 | status = OPENSSL_NPN_NEGOTIATED;
|
---|
2138 | goto found;
|
---|
2139 | }
|
---|
2140 | j += client[j];
|
---|
2141 | j++;
|
---|
2142 | }
|
---|
2143 | i += server[i];
|
---|
2144 | i++;
|
---|
2145 | }
|
---|
2146 |
|
---|
2147 | /* There's no overlap between our protocols and the server's list. */
|
---|
2148 | result = client;
|
---|
2149 | status = OPENSSL_NPN_NO_OVERLAP;
|
---|
2150 |
|
---|
2151 | found:
|
---|
2152 | *out = (unsigned char *)result + 1;
|
---|
2153 | *outlen = result[0];
|
---|
2154 | return status;
|
---|
2155 | }
|
---|
2156 |
|
---|
2157 | #ifndef OPENSSL_NO_NEXTPROTONEG
|
---|
2158 | /*
|
---|
2159 | * SSL_get0_next_proto_negotiated sets *data and *len to point to the
|
---|
2160 | * client's requested protocol for this connection and returns 0. If the
|
---|
2161 | * client didn't request any protocol, then *data is set to NULL. Note that
|
---|
2162 | * the client can request any protocol it chooses. The value returned from
|
---|
2163 | * this function need not be a member of the list of supported protocols
|
---|
2164 | * provided by the callback.
|
---|
2165 | */
|
---|
2166 | void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data,
|
---|
2167 | unsigned *len)
|
---|
2168 | {
|
---|
2169 | *data = s->next_proto_negotiated;
|
---|
2170 | if (!*data) {
|
---|
2171 | *len = 0;
|
---|
2172 | } else {
|
---|
2173 | *len = s->next_proto_negotiated_len;
|
---|
2174 | }
|
---|
2175 | }
|
---|
2176 |
|
---|
2177 | /*
|
---|
2178 | * SSL_CTX_set_next_protos_advertised_cb sets a callback that is called when
|
---|
2179 | * a TLS server needs a list of supported protocols for Next Protocol
|
---|
2180 | * Negotiation. The returned list must be in wire format. The list is
|
---|
2181 | * returned by setting |out| to point to it and |outlen| to its length. This
|
---|
2182 | * memory will not be modified, but one should assume that the SSL* keeps a
|
---|
2183 | * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it
|
---|
2184 | * wishes to advertise. Otherwise, no such extension will be included in the
|
---|
2185 | * ServerHello.
|
---|
2186 | */
|
---|
2187 | void SSL_CTX_set_next_protos_advertised_cb(SSL_CTX *ctx,
|
---|
2188 | int (*cb) (SSL *ssl,
|
---|
2189 | const unsigned char
|
---|
2190 | **out,
|
---|
2191 | unsigned int *outlen,
|
---|
2192 | void *arg), void *arg)
|
---|
2193 | {
|
---|
2194 | ctx->next_protos_advertised_cb = cb;
|
---|
2195 | ctx->next_protos_advertised_cb_arg = arg;
|
---|
2196 | }
|
---|
2197 |
|
---|
2198 | /*
|
---|
2199 | * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
|
---|
2200 | * client needs to select a protocol from the server's provided list. |out|
|
---|
2201 | * must be set to point to the selected protocol (which may be within |in|).
|
---|
2202 | * The length of the protocol name must be written into |outlen|. The
|
---|
2203 | * server's advertised protocols are provided in |in| and |inlen|. The
|
---|
2204 | * callback can assume that |in| is syntactically valid. The client must
|
---|
2205 | * select a protocol. It is fatal to the connection if this callback returns
|
---|
2206 | * a value other than SSL_TLSEXT_ERR_OK.
|
---|
2207 | */
|
---|
2208 | void SSL_CTX_set_next_proto_select_cb(SSL_CTX *ctx,
|
---|
2209 | int (*cb) (SSL *s, unsigned char **out,
|
---|
2210 | unsigned char *outlen,
|
---|
2211 | const unsigned char *in,
|
---|
2212 | unsigned int inlen,
|
---|
2213 | void *arg), void *arg)
|
---|
2214 | {
|
---|
2215 | ctx->next_proto_select_cb = cb;
|
---|
2216 | ctx->next_proto_select_cb_arg = arg;
|
---|
2217 | }
|
---|
2218 | #endif
|
---|
2219 |
|
---|
2220 | /*
|
---|
2221 | * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
|
---|
2222 | * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
|
---|
2223 | * length-prefixed strings). Returns 0 on success.
|
---|
2224 | */
|
---|
2225 | int SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos,
|
---|
2226 | unsigned int protos_len)
|
---|
2227 | {
|
---|
2228 | OPENSSL_free(ctx->alpn_client_proto_list);
|
---|
2229 | ctx->alpn_client_proto_list = OPENSSL_memdup(protos, protos_len);
|
---|
2230 | if (ctx->alpn_client_proto_list == NULL) {
|
---|
2231 | SSLerr(SSL_F_SSL_CTX_SET_ALPN_PROTOS, ERR_R_MALLOC_FAILURE);
|
---|
2232 | return 1;
|
---|
2233 | }
|
---|
2234 | ctx->alpn_client_proto_list_len = protos_len;
|
---|
2235 |
|
---|
2236 | return 0;
|
---|
2237 | }
|
---|
2238 |
|
---|
2239 | /*
|
---|
2240 | * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
|
---|
2241 | * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
|
---|
2242 | * length-prefixed strings). Returns 0 on success.
|
---|
2243 | */
|
---|
2244 | int SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos,
|
---|
2245 | unsigned int protos_len)
|
---|
2246 | {
|
---|
2247 | OPENSSL_free(ssl->alpn_client_proto_list);
|
---|
2248 | ssl->alpn_client_proto_list = OPENSSL_memdup(protos, protos_len);
|
---|
2249 | if (ssl->alpn_client_proto_list == NULL) {
|
---|
2250 | SSLerr(SSL_F_SSL_SET_ALPN_PROTOS, ERR_R_MALLOC_FAILURE);
|
---|
2251 | return 1;
|
---|
2252 | }
|
---|
2253 | ssl->alpn_client_proto_list_len = protos_len;
|
---|
2254 |
|
---|
2255 | return 0;
|
---|
2256 | }
|
---|
2257 |
|
---|
2258 | /*
|
---|
2259 | * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is
|
---|
2260 | * called during ClientHello processing in order to select an ALPN protocol
|
---|
2261 | * from the client's list of offered protocols.
|
---|
2262 | */
|
---|
2263 | void SSL_CTX_set_alpn_select_cb(SSL_CTX *ctx,
|
---|
2264 | int (*cb) (SSL *ssl,
|
---|
2265 | const unsigned char **out,
|
---|
2266 | unsigned char *outlen,
|
---|
2267 | const unsigned char *in,
|
---|
2268 | unsigned int inlen,
|
---|
2269 | void *arg), void *arg)
|
---|
2270 | {
|
---|
2271 | ctx->alpn_select_cb = cb;
|
---|
2272 | ctx->alpn_select_cb_arg = arg;
|
---|
2273 | }
|
---|
2274 |
|
---|
2275 | /*
|
---|
2276 | * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from
|
---|
2277 | * |ssl|. On return it sets |*data| to point to |*len| bytes of protocol name
|
---|
2278 | * (not including the leading length-prefix byte). If the server didn't
|
---|
2279 | * respond with a negotiated protocol then |*len| will be zero.
|
---|
2280 | */
|
---|
2281 | void SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data,
|
---|
2282 | unsigned int *len)
|
---|
2283 | {
|
---|
2284 | *data = NULL;
|
---|
2285 | if (ssl->s3)
|
---|
2286 | *data = ssl->s3->alpn_selected;
|
---|
2287 | if (*data == NULL)
|
---|
2288 | *len = 0;
|
---|
2289 | else
|
---|
2290 | *len = ssl->s3->alpn_selected_len;
|
---|
2291 | }
|
---|
2292 |
|
---|
2293 | int SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen,
|
---|
2294 | const char *label, size_t llen,
|
---|
2295 | const unsigned char *p, size_t plen,
|
---|
2296 | int use_context)
|
---|
2297 | {
|
---|
2298 | if (s->version < TLS1_VERSION && s->version != DTLS1_BAD_VER)
|
---|
2299 | return -1;
|
---|
2300 |
|
---|
2301 | return s->method->ssl3_enc->export_keying_material(s, out, olen, label,
|
---|
2302 | llen, p, plen,
|
---|
2303 | use_context);
|
---|
2304 | }
|
---|
2305 |
|
---|
2306 | static unsigned long ssl_session_hash(const SSL_SESSION *a)
|
---|
2307 | {
|
---|
2308 | const unsigned char *session_id = a->session_id;
|
---|
2309 | unsigned long l;
|
---|
2310 | unsigned char tmp_storage[4];
|
---|
2311 |
|
---|
2312 | if (a->session_id_length < sizeof(tmp_storage)) {
|
---|
2313 | memset(tmp_storage, 0, sizeof(tmp_storage));
|
---|
2314 | memcpy(tmp_storage, a->session_id, a->session_id_length);
|
---|
2315 | session_id = tmp_storage;
|
---|
2316 | }
|
---|
2317 |
|
---|
2318 | l = (unsigned long)
|
---|
2319 | ((unsigned long)session_id[0]) |
|
---|
2320 | ((unsigned long)session_id[1] << 8L) |
|
---|
2321 | ((unsigned long)session_id[2] << 16L) |
|
---|
2322 | ((unsigned long)session_id[3] << 24L);
|
---|
2323 | return (l);
|
---|
2324 | }
|
---|
2325 |
|
---|
2326 | /*
|
---|
2327 | * NB: If this function (or indeed the hash function which uses a sort of
|
---|
2328 | * coarser function than this one) is changed, ensure
|
---|
2329 | * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on
|
---|
2330 | * being able to construct an SSL_SESSION that will collide with any existing
|
---|
2331 | * session with a matching session ID.
|
---|
2332 | */
|
---|
2333 | static int ssl_session_cmp(const SSL_SESSION *a, const SSL_SESSION *b)
|
---|
2334 | {
|
---|
2335 | if (a->ssl_version != b->ssl_version)
|
---|
2336 | return (1);
|
---|
2337 | if (a->session_id_length != b->session_id_length)
|
---|
2338 | return (1);
|
---|
2339 | return (memcmp(a->session_id, b->session_id, a->session_id_length));
|
---|
2340 | }
|
---|
2341 |
|
---|
2342 | /*
|
---|
2343 | * These wrapper functions should remain rather than redeclaring
|
---|
2344 | * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
|
---|
2345 | * variable. The reason is that the functions aren't static, they're exposed
|
---|
2346 | * via ssl.h.
|
---|
2347 | */
|
---|
2348 |
|
---|
2349 | SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth)
|
---|
2350 | {
|
---|
2351 | SSL_CTX *ret = NULL;
|
---|
2352 |
|
---|
2353 | if (meth == NULL) {
|
---|
2354 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_NULL_SSL_METHOD_PASSED);
|
---|
2355 | return (NULL);
|
---|
2356 | }
|
---|
2357 |
|
---|
2358 | if (!OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS, NULL))
|
---|
2359 | return NULL;
|
---|
2360 |
|
---|
2361 | if (FIPS_mode() && (meth->version < TLS1_VERSION)) {
|
---|
2362 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_AT_LEAST_TLS_1_0_NEEDED_IN_FIPS_MODE);
|
---|
2363 | return NULL;
|
---|
2364 | }
|
---|
2365 |
|
---|
2366 | if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) {
|
---|
2367 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
|
---|
2368 | goto err;
|
---|
2369 | }
|
---|
2370 | ret = OPENSSL_zalloc(sizeof(*ret));
|
---|
2371 | if (ret == NULL)
|
---|
2372 | goto err;
|
---|
2373 |
|
---|
2374 | ret->method = meth;
|
---|
2375 | ret->min_proto_version = 0;
|
---|
2376 | ret->max_proto_version = 0;
|
---|
2377 | ret->session_cache_mode = SSL_SESS_CACHE_SERVER;
|
---|
2378 | ret->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
|
---|
2379 | /* We take the system default. */
|
---|
2380 | ret->session_timeout = meth->get_timeout();
|
---|
2381 | ret->references = 1;
|
---|
2382 | ret->lock = CRYPTO_THREAD_lock_new();
|
---|
2383 | if (ret->lock == NULL) {
|
---|
2384 | SSLerr(SSL_F_SSL_CTX_NEW, ERR_R_MALLOC_FAILURE);
|
---|
2385 | OPENSSL_free(ret);
|
---|
2386 | return NULL;
|
---|
2387 | }
|
---|
2388 | ret->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT;
|
---|
2389 | ret->verify_mode = SSL_VERIFY_NONE;
|
---|
2390 | if ((ret->cert = ssl_cert_new()) == NULL)
|
---|
2391 | goto err;
|
---|
2392 |
|
---|
2393 | ret->sessions = lh_SSL_SESSION_new(ssl_session_hash, ssl_session_cmp);
|
---|
2394 | if (ret->sessions == NULL)
|
---|
2395 | goto err;
|
---|
2396 | ret->cert_store = X509_STORE_new();
|
---|
2397 | if (ret->cert_store == NULL)
|
---|
2398 | goto err;
|
---|
2399 | #ifndef OPENSSL_NO_CT
|
---|
2400 | ret->ctlog_store = CTLOG_STORE_new();
|
---|
2401 | if (ret->ctlog_store == NULL)
|
---|
2402 | goto err;
|
---|
2403 | #endif
|
---|
2404 | if (!ssl_create_cipher_list(ret->method,
|
---|
2405 | &ret->cipher_list, &ret->cipher_list_by_id,
|
---|
2406 | SSL_DEFAULT_CIPHER_LIST, ret->cert)
|
---|
2407 | || sk_SSL_CIPHER_num(ret->cipher_list) <= 0) {
|
---|
2408 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_LIBRARY_HAS_NO_CIPHERS);
|
---|
2409 | goto err2;
|
---|
2410 | }
|
---|
2411 |
|
---|
2412 | ret->param = X509_VERIFY_PARAM_new();
|
---|
2413 | if (ret->param == NULL)
|
---|
2414 | goto err;
|
---|
2415 |
|
---|
2416 | if ((ret->md5 = EVP_get_digestbyname("ssl3-md5")) == NULL) {
|
---|
2417 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
|
---|
2418 | goto err2;
|
---|
2419 | }
|
---|
2420 | if ((ret->sha1 = EVP_get_digestbyname("ssl3-sha1")) == NULL) {
|
---|
2421 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
|
---|
2422 | goto err2;
|
---|
2423 | }
|
---|
2424 |
|
---|
2425 | if ((ret->client_CA = sk_X509_NAME_new_null()) == NULL)
|
---|
2426 | goto err;
|
---|
2427 |
|
---|
2428 | if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data))
|
---|
2429 | goto err;
|
---|
2430 |
|
---|
2431 | /* No compression for DTLS */
|
---|
2432 | if (!(meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS))
|
---|
2433 | ret->comp_methods = SSL_COMP_get_compression_methods();
|
---|
2434 |
|
---|
2435 | ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
|
---|
2436 | ret->split_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
|
---|
2437 |
|
---|
2438 | /* Setup RFC5077 ticket keys */
|
---|
2439 | if ((RAND_bytes(ret->tlsext_tick_key_name,
|
---|
2440 | sizeof(ret->tlsext_tick_key_name)) <= 0)
|
---|
2441 | || (RAND_bytes(ret->tlsext_tick_hmac_key,
|
---|
2442 | sizeof(ret->tlsext_tick_hmac_key)) <= 0)
|
---|
2443 | || (RAND_bytes(ret->tlsext_tick_aes_key,
|
---|
2444 | sizeof(ret->tlsext_tick_aes_key)) <= 0))
|
---|
2445 | ret->options |= SSL_OP_NO_TICKET;
|
---|
2446 |
|
---|
2447 | #ifndef OPENSSL_NO_SRP
|
---|
2448 | if (!SSL_CTX_SRP_CTX_init(ret))
|
---|
2449 | goto err;
|
---|
2450 | #endif
|
---|
2451 | #ifndef OPENSSL_NO_ENGINE
|
---|
2452 | # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
|
---|
2453 | # define eng_strx(x) #x
|
---|
2454 | # define eng_str(x) eng_strx(x)
|
---|
2455 | /* Use specific client engine automatically... ignore errors */
|
---|
2456 | {
|
---|
2457 | ENGINE *eng;
|
---|
2458 | eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
|
---|
2459 | if (!eng) {
|
---|
2460 | ERR_clear_error();
|
---|
2461 | ENGINE_load_builtin_engines();
|
---|
2462 | eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
|
---|
2463 | }
|
---|
2464 | if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng))
|
---|
2465 | ERR_clear_error();
|
---|
2466 | }
|
---|
2467 | # endif
|
---|
2468 | #endif
|
---|
2469 | /*
|
---|
2470 | * Default is to connect to non-RI servers. When RI is more widely
|
---|
2471 | * deployed might change this.
|
---|
2472 | */
|
---|
2473 | ret->options |= SSL_OP_LEGACY_SERVER_CONNECT;
|
---|
2474 | /*
|
---|
2475 | * Disable compression by default to prevent CRIME. Applications can
|
---|
2476 | * re-enable compression by configuring
|
---|
2477 | * SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION);
|
---|
2478 | * or by using the SSL_CONF library.
|
---|
2479 | */
|
---|
2480 | ret->options |= SSL_OP_NO_COMPRESSION;
|
---|
2481 |
|
---|
2482 | ret->tlsext_status_type = -1;
|
---|
2483 |
|
---|
2484 | return ret;
|
---|
2485 | err:
|
---|
2486 | SSLerr(SSL_F_SSL_CTX_NEW, ERR_R_MALLOC_FAILURE);
|
---|
2487 | err2:
|
---|
2488 | SSL_CTX_free(ret);
|
---|
2489 | return NULL;
|
---|
2490 | }
|
---|
2491 |
|
---|
2492 | int SSL_CTX_up_ref(SSL_CTX *ctx)
|
---|
2493 | {
|
---|
2494 | int i;
|
---|
2495 |
|
---|
2496 | if (CRYPTO_atomic_add(&ctx->references, 1, &i, ctx->lock) <= 0)
|
---|
2497 | return 0;
|
---|
2498 |
|
---|
2499 | REF_PRINT_COUNT("SSL_CTX", ctx);
|
---|
2500 | REF_ASSERT_ISNT(i < 2);
|
---|
2501 | return ((i > 1) ? 1 : 0);
|
---|
2502 | }
|
---|
2503 |
|
---|
2504 | void SSL_CTX_free(SSL_CTX *a)
|
---|
2505 | {
|
---|
2506 | int i;
|
---|
2507 |
|
---|
2508 | if (a == NULL)
|
---|
2509 | return;
|
---|
2510 |
|
---|
2511 | CRYPTO_atomic_add(&a->references, -1, &i, a->lock);
|
---|
2512 | REF_PRINT_COUNT("SSL_CTX", a);
|
---|
2513 | if (i > 0)
|
---|
2514 | return;
|
---|
2515 | REF_ASSERT_ISNT(i < 0);
|
---|
2516 |
|
---|
2517 | X509_VERIFY_PARAM_free(a->param);
|
---|
2518 | dane_ctx_final(&a->dane);
|
---|
2519 |
|
---|
2520 | /*
|
---|
2521 | * Free internal session cache. However: the remove_cb() may reference
|
---|
2522 | * the ex_data of SSL_CTX, thus the ex_data store can only be removed
|
---|
2523 | * after the sessions were flushed.
|
---|
2524 | * As the ex_data handling routines might also touch the session cache,
|
---|
2525 | * the most secure solution seems to be: empty (flush) the cache, then
|
---|
2526 | * free ex_data, then finally free the cache.
|
---|
2527 | * (See ticket [openssl.org #212].)
|
---|
2528 | */
|
---|
2529 | if (a->sessions != NULL)
|
---|
2530 | SSL_CTX_flush_sessions(a, 0);
|
---|
2531 |
|
---|
2532 | CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
|
---|
2533 | lh_SSL_SESSION_free(a->sessions);
|
---|
2534 | X509_STORE_free(a->cert_store);
|
---|
2535 | #ifndef OPENSSL_NO_CT
|
---|
2536 | CTLOG_STORE_free(a->ctlog_store);
|
---|
2537 | #endif
|
---|
2538 | sk_SSL_CIPHER_free(a->cipher_list);
|
---|
2539 | sk_SSL_CIPHER_free(a->cipher_list_by_id);
|
---|
2540 | ssl_cert_free(a->cert);
|
---|
2541 | sk_X509_NAME_pop_free(a->client_CA, X509_NAME_free);
|
---|
2542 | sk_X509_pop_free(a->extra_certs, X509_free);
|
---|
2543 | a->comp_methods = NULL;
|
---|
2544 | #ifndef OPENSSL_NO_SRTP
|
---|
2545 | sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles);
|
---|
2546 | #endif
|
---|
2547 | #ifndef OPENSSL_NO_SRP
|
---|
2548 | SSL_CTX_SRP_CTX_free(a);
|
---|
2549 | #endif
|
---|
2550 | #ifndef OPENSSL_NO_ENGINE
|
---|
2551 | ENGINE_finish(a->client_cert_engine);
|
---|
2552 | #endif
|
---|
2553 |
|
---|
2554 | #ifndef OPENSSL_NO_EC
|
---|
2555 | OPENSSL_free(a->tlsext_ecpointformatlist);
|
---|
2556 | OPENSSL_free(a->tlsext_ellipticcurvelist);
|
---|
2557 | #endif
|
---|
2558 | OPENSSL_free(a->alpn_client_proto_list);
|
---|
2559 |
|
---|
2560 | CRYPTO_THREAD_lock_free(a->lock);
|
---|
2561 |
|
---|
2562 | OPENSSL_free(a);
|
---|
2563 | }
|
---|
2564 |
|
---|
2565 | void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
|
---|
2566 | {
|
---|
2567 | ctx->default_passwd_callback = cb;
|
---|
2568 | }
|
---|
2569 |
|
---|
2570 | void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u)
|
---|
2571 | {
|
---|
2572 | ctx->default_passwd_callback_userdata = u;
|
---|
2573 | }
|
---|
2574 |
|
---|
2575 | pem_password_cb *SSL_CTX_get_default_passwd_cb(SSL_CTX *ctx)
|
---|
2576 | {
|
---|
2577 | return ctx->default_passwd_callback;
|
---|
2578 | }
|
---|
2579 |
|
---|
2580 | void *SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX *ctx)
|
---|
2581 | {
|
---|
2582 | return ctx->default_passwd_callback_userdata;
|
---|
2583 | }
|
---|
2584 |
|
---|
2585 | void SSL_set_default_passwd_cb(SSL *s, pem_password_cb *cb)
|
---|
2586 | {
|
---|
2587 | s->default_passwd_callback = cb;
|
---|
2588 | }
|
---|
2589 |
|
---|
2590 | void SSL_set_default_passwd_cb_userdata(SSL *s, void *u)
|
---|
2591 | {
|
---|
2592 | s->default_passwd_callback_userdata = u;
|
---|
2593 | }
|
---|
2594 |
|
---|
2595 | pem_password_cb *SSL_get_default_passwd_cb(SSL *s)
|
---|
2596 | {
|
---|
2597 | return s->default_passwd_callback;
|
---|
2598 | }
|
---|
2599 |
|
---|
2600 | void *SSL_get_default_passwd_cb_userdata(SSL *s)
|
---|
2601 | {
|
---|
2602 | return s->default_passwd_callback_userdata;
|
---|
2603 | }
|
---|
2604 |
|
---|
2605 | void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx,
|
---|
2606 | int (*cb) (X509_STORE_CTX *, void *),
|
---|
2607 | void *arg)
|
---|
2608 | {
|
---|
2609 | ctx->app_verify_callback = cb;
|
---|
2610 | ctx->app_verify_arg = arg;
|
---|
2611 | }
|
---|
2612 |
|
---|
2613 | void SSL_CTX_set_verify(SSL_CTX *ctx, int mode,
|
---|
2614 | int (*cb) (int, X509_STORE_CTX *))
|
---|
2615 | {
|
---|
2616 | ctx->verify_mode = mode;
|
---|
2617 | ctx->default_verify_callback = cb;
|
---|
2618 | }
|
---|
2619 |
|
---|
2620 | void SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth)
|
---|
2621 | {
|
---|
2622 | X509_VERIFY_PARAM_set_depth(ctx->param, depth);
|
---|
2623 | }
|
---|
2624 |
|
---|
2625 | void SSL_CTX_set_cert_cb(SSL_CTX *c, int (*cb) (SSL *ssl, void *arg), void *arg)
|
---|
2626 | {
|
---|
2627 | ssl_cert_set_cert_cb(c->cert, cb, arg);
|
---|
2628 | }
|
---|
2629 |
|
---|
2630 | void SSL_set_cert_cb(SSL *s, int (*cb) (SSL *ssl, void *arg), void *arg)
|
---|
2631 | {
|
---|
2632 | ssl_cert_set_cert_cb(s->cert, cb, arg);
|
---|
2633 | }
|
---|
2634 |
|
---|
2635 | void ssl_set_masks(SSL *s)
|
---|
2636 | {
|
---|
2637 | #if !defined(OPENSSL_NO_EC) || !defined(OPENSSL_NO_GOST)
|
---|
2638 | CERT_PKEY *cpk;
|
---|
2639 | #endif
|
---|
2640 | CERT *c = s->cert;
|
---|
2641 | uint32_t *pvalid = s->s3->tmp.valid_flags;
|
---|
2642 | int rsa_enc, rsa_sign, dh_tmp, dsa_sign;
|
---|
2643 | unsigned long mask_k, mask_a;
|
---|
2644 | #ifndef OPENSSL_NO_EC
|
---|
2645 | int have_ecc_cert, ecdsa_ok;
|
---|
2646 | X509 *x = NULL;
|
---|
2647 | #endif
|
---|
2648 | if (c == NULL)
|
---|
2649 | return;
|
---|
2650 |
|
---|
2651 | #ifndef OPENSSL_NO_DH
|
---|
2652 | dh_tmp = (c->dh_tmp != NULL || c->dh_tmp_cb != NULL || c->dh_tmp_auto);
|
---|
2653 | #else
|
---|
2654 | dh_tmp = 0;
|
---|
2655 | #endif
|
---|
2656 |
|
---|
2657 | rsa_enc = pvalid[SSL_PKEY_RSA_ENC] & CERT_PKEY_VALID;
|
---|
2658 | rsa_sign = pvalid[SSL_PKEY_RSA_SIGN] & CERT_PKEY_SIGN;
|
---|
2659 | dsa_sign = pvalid[SSL_PKEY_DSA_SIGN] & CERT_PKEY_SIGN;
|
---|
2660 | #ifndef OPENSSL_NO_EC
|
---|
2661 | have_ecc_cert = pvalid[SSL_PKEY_ECC] & CERT_PKEY_VALID;
|
---|
2662 | #endif
|
---|
2663 | mask_k = 0;
|
---|
2664 | mask_a = 0;
|
---|
2665 |
|
---|
2666 | #ifdef CIPHER_DEBUG
|
---|
2667 | fprintf(stderr, "dht=%d re=%d rs=%d ds=%d\n",
|
---|
2668 | dh_tmp, rsa_enc, rsa_sign, dsa_sign);
|
---|
2669 | #endif
|
---|
2670 |
|
---|
2671 | #ifndef OPENSSL_NO_GOST
|
---|
2672 | cpk = &(c->pkeys[SSL_PKEY_GOST12_512]);
|
---|
2673 | if (cpk->x509 != NULL && cpk->privatekey != NULL) {
|
---|
2674 | mask_k |= SSL_kGOST;
|
---|
2675 | mask_a |= SSL_aGOST12;
|
---|
2676 | }
|
---|
2677 | cpk = &(c->pkeys[SSL_PKEY_GOST12_256]);
|
---|
2678 | if (cpk->x509 != NULL && cpk->privatekey != NULL) {
|
---|
2679 | mask_k |= SSL_kGOST;
|
---|
2680 | mask_a |= SSL_aGOST12;
|
---|
2681 | }
|
---|
2682 | cpk = &(c->pkeys[SSL_PKEY_GOST01]);
|
---|
2683 | if (cpk->x509 != NULL && cpk->privatekey != NULL) {
|
---|
2684 | mask_k |= SSL_kGOST;
|
---|
2685 | mask_a |= SSL_aGOST01;
|
---|
2686 | }
|
---|
2687 | #endif
|
---|
2688 |
|
---|
2689 | if (rsa_enc)
|
---|
2690 | mask_k |= SSL_kRSA;
|
---|
2691 |
|
---|
2692 | if (dh_tmp)
|
---|
2693 | mask_k |= SSL_kDHE;
|
---|
2694 |
|
---|
2695 | if (rsa_enc || rsa_sign) {
|
---|
2696 | mask_a |= SSL_aRSA;
|
---|
2697 | }
|
---|
2698 |
|
---|
2699 | if (dsa_sign) {
|
---|
2700 | mask_a |= SSL_aDSS;
|
---|
2701 | }
|
---|
2702 |
|
---|
2703 | mask_a |= SSL_aNULL;
|
---|
2704 |
|
---|
2705 | /*
|
---|
2706 | * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites
|
---|
2707 | * depending on the key usage extension.
|
---|
2708 | */
|
---|
2709 | #ifndef OPENSSL_NO_EC
|
---|
2710 | if (have_ecc_cert) {
|
---|
2711 | uint32_t ex_kusage;
|
---|
2712 | cpk = &c->pkeys[SSL_PKEY_ECC];
|
---|
2713 | x = cpk->x509;
|
---|
2714 | ex_kusage = X509_get_key_usage(x);
|
---|
2715 | ecdsa_ok = ex_kusage & X509v3_KU_DIGITAL_SIGNATURE;
|
---|
2716 | if (!(pvalid[SSL_PKEY_ECC] & CERT_PKEY_SIGN))
|
---|
2717 | ecdsa_ok = 0;
|
---|
2718 | if (ecdsa_ok)
|
---|
2719 | mask_a |= SSL_aECDSA;
|
---|
2720 | }
|
---|
2721 | #endif
|
---|
2722 |
|
---|
2723 | #ifndef OPENSSL_NO_EC
|
---|
2724 | mask_k |= SSL_kECDHE;
|
---|
2725 | #endif
|
---|
2726 |
|
---|
2727 | #ifndef OPENSSL_NO_PSK
|
---|
2728 | mask_k |= SSL_kPSK;
|
---|
2729 | mask_a |= SSL_aPSK;
|
---|
2730 | if (mask_k & SSL_kRSA)
|
---|
2731 | mask_k |= SSL_kRSAPSK;
|
---|
2732 | if (mask_k & SSL_kDHE)
|
---|
2733 | mask_k |= SSL_kDHEPSK;
|
---|
2734 | if (mask_k & SSL_kECDHE)
|
---|
2735 | mask_k |= SSL_kECDHEPSK;
|
---|
2736 | #endif
|
---|
2737 |
|
---|
2738 | s->s3->tmp.mask_k = mask_k;
|
---|
2739 | s->s3->tmp.mask_a = mask_a;
|
---|
2740 | }
|
---|
2741 |
|
---|
2742 | #ifndef OPENSSL_NO_EC
|
---|
2743 |
|
---|
2744 | int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s)
|
---|
2745 | {
|
---|
2746 | if (s->s3->tmp.new_cipher->algorithm_auth & SSL_aECDSA) {
|
---|
2747 | /* key usage, if present, must allow signing */
|
---|
2748 | if (!(X509_get_key_usage(x) & X509v3_KU_DIGITAL_SIGNATURE)) {
|
---|
2749 | SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG,
|
---|
2750 | SSL_R_ECC_CERT_NOT_FOR_SIGNING);
|
---|
2751 | return 0;
|
---|
2752 | }
|
---|
2753 | }
|
---|
2754 | return 1; /* all checks are ok */
|
---|
2755 | }
|
---|
2756 |
|
---|
2757 | #endif
|
---|
2758 |
|
---|
2759 | static int ssl_get_server_cert_index(const SSL *s)
|
---|
2760 | {
|
---|
2761 | int idx;
|
---|
2762 | idx = ssl_cipher_get_cert_index(s->s3->tmp.new_cipher);
|
---|
2763 | if (idx == SSL_PKEY_RSA_ENC && !s->cert->pkeys[SSL_PKEY_RSA_ENC].x509)
|
---|
2764 | idx = SSL_PKEY_RSA_SIGN;
|
---|
2765 | if (idx == SSL_PKEY_GOST_EC) {
|
---|
2766 | if (s->cert->pkeys[SSL_PKEY_GOST12_512].x509)
|
---|
2767 | idx = SSL_PKEY_GOST12_512;
|
---|
2768 | else if (s->cert->pkeys[SSL_PKEY_GOST12_256].x509)
|
---|
2769 | idx = SSL_PKEY_GOST12_256;
|
---|
2770 | else if (s->cert->pkeys[SSL_PKEY_GOST01].x509)
|
---|
2771 | idx = SSL_PKEY_GOST01;
|
---|
2772 | else
|
---|
2773 | idx = -1;
|
---|
2774 | }
|
---|
2775 | if (idx == -1)
|
---|
2776 | SSLerr(SSL_F_SSL_GET_SERVER_CERT_INDEX, ERR_R_INTERNAL_ERROR);
|
---|
2777 | return idx;
|
---|
2778 | }
|
---|
2779 |
|
---|
2780 | CERT_PKEY *ssl_get_server_send_pkey(SSL *s)
|
---|
2781 | {
|
---|
2782 | CERT *c;
|
---|
2783 | int i;
|
---|
2784 |
|
---|
2785 | c = s->cert;
|
---|
2786 | if (!s->s3 || !s->s3->tmp.new_cipher)
|
---|
2787 | return NULL;
|
---|
2788 | ssl_set_masks(s);
|
---|
2789 |
|
---|
2790 | i = ssl_get_server_cert_index(s);
|
---|
2791 |
|
---|
2792 | /* This may or may not be an error. */
|
---|
2793 | if (i < 0)
|
---|
2794 | return NULL;
|
---|
2795 |
|
---|
2796 | /* May be NULL. */
|
---|
2797 | return &c->pkeys[i];
|
---|
2798 | }
|
---|
2799 |
|
---|
2800 | EVP_PKEY *ssl_get_sign_pkey(SSL *s, const SSL_CIPHER *cipher,
|
---|
2801 | const EVP_MD **pmd)
|
---|
2802 | {
|
---|
2803 | unsigned long alg_a;
|
---|
2804 | CERT *c;
|
---|
2805 | int idx = -1;
|
---|
2806 |
|
---|
2807 | alg_a = cipher->algorithm_auth;
|
---|
2808 | c = s->cert;
|
---|
2809 |
|
---|
2810 | if ((alg_a & SSL_aDSS) && (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
|
---|
2811 | idx = SSL_PKEY_DSA_SIGN;
|
---|
2812 | else if (alg_a & SSL_aRSA) {
|
---|
2813 | if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
|
---|
2814 | idx = SSL_PKEY_RSA_SIGN;
|
---|
2815 | else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
|
---|
2816 | idx = SSL_PKEY_RSA_ENC;
|
---|
2817 | } else if ((alg_a & SSL_aECDSA) &&
|
---|
2818 | (c->pkeys[SSL_PKEY_ECC].privatekey != NULL))
|
---|
2819 | idx = SSL_PKEY_ECC;
|
---|
2820 | if (idx == -1) {
|
---|
2821 | SSLerr(SSL_F_SSL_GET_SIGN_PKEY, ERR_R_INTERNAL_ERROR);
|
---|
2822 | return (NULL);
|
---|
2823 | }
|
---|
2824 | if (pmd)
|
---|
2825 | *pmd = s->s3->tmp.md[idx];
|
---|
2826 | return c->pkeys[idx].privatekey;
|
---|
2827 | }
|
---|
2828 |
|
---|
2829 | int ssl_get_server_cert_serverinfo(SSL *s, const unsigned char **serverinfo,
|
---|
2830 | size_t *serverinfo_length)
|
---|
2831 | {
|
---|
2832 | CERT *c = NULL;
|
---|
2833 | int i = 0;
|
---|
2834 | *serverinfo_length = 0;
|
---|
2835 |
|
---|
2836 | c = s->cert;
|
---|
2837 | i = ssl_get_server_cert_index(s);
|
---|
2838 |
|
---|
2839 | if (i == -1)
|
---|
2840 | return 0;
|
---|
2841 | if (c->pkeys[i].serverinfo == NULL)
|
---|
2842 | return 0;
|
---|
2843 |
|
---|
2844 | *serverinfo = c->pkeys[i].serverinfo;
|
---|
2845 | *serverinfo_length = c->pkeys[i].serverinfo_length;
|
---|
2846 | return 1;
|
---|
2847 | }
|
---|
2848 |
|
---|
2849 | void ssl_update_cache(SSL *s, int mode)
|
---|
2850 | {
|
---|
2851 | int i;
|
---|
2852 |
|
---|
2853 | /*
|
---|
2854 | * If the session_id_length is 0, we are not supposed to cache it, and it
|
---|
2855 | * would be rather hard to do anyway :-)
|
---|
2856 | */
|
---|
2857 | if (s->session->session_id_length == 0)
|
---|
2858 | return;
|
---|
2859 |
|
---|
2860 | i = s->session_ctx->session_cache_mode;
|
---|
2861 | if ((i & mode) && (!s->hit)
|
---|
2862 | && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE)
|
---|
2863 | || SSL_CTX_add_session(s->session_ctx, s->session))
|
---|
2864 | && (s->session_ctx->new_session_cb != NULL)) {
|
---|
2865 | SSL_SESSION_up_ref(s->session);
|
---|
2866 | if (!s->session_ctx->new_session_cb(s, s->session))
|
---|
2867 | SSL_SESSION_free(s->session);
|
---|
2868 | }
|
---|
2869 |
|
---|
2870 | /* auto flush every 255 connections */
|
---|
2871 | if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && ((i & mode) == mode)) {
|
---|
2872 | if ((((mode & SSL_SESS_CACHE_CLIENT)
|
---|
2873 | ? s->session_ctx->stats.sess_connect_good
|
---|
2874 | : s->session_ctx->stats.sess_accept_good) & 0xff) == 0xff) {
|
---|
2875 | SSL_CTX_flush_sessions(s->session_ctx, (unsigned long)time(NULL));
|
---|
2876 | }
|
---|
2877 | }
|
---|
2878 | }
|
---|
2879 |
|
---|
2880 | const SSL_METHOD *SSL_CTX_get_ssl_method(SSL_CTX *ctx)
|
---|
2881 | {
|
---|
2882 | return ctx->method;
|
---|
2883 | }
|
---|
2884 |
|
---|
2885 | const SSL_METHOD *SSL_get_ssl_method(SSL *s)
|
---|
2886 | {
|
---|
2887 | return (s->method);
|
---|
2888 | }
|
---|
2889 |
|
---|
2890 | int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth)
|
---|
2891 | {
|
---|
2892 | int ret = 1;
|
---|
2893 |
|
---|
2894 | if (s->method != meth) {
|
---|
2895 | const SSL_METHOD *sm = s->method;
|
---|
2896 | int (*hf) (SSL *) = s->handshake_func;
|
---|
2897 |
|
---|
2898 | if (sm->version == meth->version)
|
---|
2899 | s->method = meth;
|
---|
2900 | else {
|
---|
2901 | sm->ssl_free(s);
|
---|
2902 | s->method = meth;
|
---|
2903 | ret = s->method->ssl_new(s);
|
---|
2904 | }
|
---|
2905 |
|
---|
2906 | if (hf == sm->ssl_connect)
|
---|
2907 | s->handshake_func = meth->ssl_connect;
|
---|
2908 | else if (hf == sm->ssl_accept)
|
---|
2909 | s->handshake_func = meth->ssl_accept;
|
---|
2910 | }
|
---|
2911 | return (ret);
|
---|
2912 | }
|
---|
2913 |
|
---|
2914 | int SSL_get_error(const SSL *s, int i)
|
---|
2915 | {
|
---|
2916 | int reason;
|
---|
2917 | unsigned long l;
|
---|
2918 | BIO *bio;
|
---|
2919 |
|
---|
2920 | if (i > 0)
|
---|
2921 | return (SSL_ERROR_NONE);
|
---|
2922 |
|
---|
2923 | /*
|
---|
2924 | * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc,
|
---|
2925 | * where we do encode the error
|
---|
2926 | */
|
---|
2927 | if ((l = ERR_peek_error()) != 0) {
|
---|
2928 | if (ERR_GET_LIB(l) == ERR_LIB_SYS)
|
---|
2929 | return (SSL_ERROR_SYSCALL);
|
---|
2930 | else
|
---|
2931 | return (SSL_ERROR_SSL);
|
---|
2932 | }
|
---|
2933 |
|
---|
2934 | if (i < 0) {
|
---|
2935 | if (SSL_want_read(s)) {
|
---|
2936 | bio = SSL_get_rbio(s);
|
---|
2937 | if (BIO_should_read(bio))
|
---|
2938 | return (SSL_ERROR_WANT_READ);
|
---|
2939 | else if (BIO_should_write(bio))
|
---|
2940 | /*
|
---|
2941 | * This one doesn't make too much sense ... We never try to write
|
---|
2942 | * to the rbio, and an application program where rbio and wbio
|
---|
2943 | * are separate couldn't even know what it should wait for.
|
---|
2944 | * However if we ever set s->rwstate incorrectly (so that we have
|
---|
2945 | * SSL_want_read(s) instead of SSL_want_write(s)) and rbio and
|
---|
2946 | * wbio *are* the same, this test works around that bug; so it
|
---|
2947 | * might be safer to keep it.
|
---|
2948 | */
|
---|
2949 | return (SSL_ERROR_WANT_WRITE);
|
---|
2950 | else if (BIO_should_io_special(bio)) {
|
---|
2951 | reason = BIO_get_retry_reason(bio);
|
---|
2952 | if (reason == BIO_RR_CONNECT)
|
---|
2953 | return (SSL_ERROR_WANT_CONNECT);
|
---|
2954 | else if (reason == BIO_RR_ACCEPT)
|
---|
2955 | return (SSL_ERROR_WANT_ACCEPT);
|
---|
2956 | else
|
---|
2957 | return (SSL_ERROR_SYSCALL); /* unknown */
|
---|
2958 | }
|
---|
2959 | }
|
---|
2960 |
|
---|
2961 | if (SSL_want_write(s)) {
|
---|
2962 | /*
|
---|
2963 | * Access wbio directly - in order to use the buffered bio if
|
---|
2964 | * present
|
---|
2965 | */
|
---|
2966 | bio = s->wbio;
|
---|
2967 | if (BIO_should_write(bio))
|
---|
2968 | return (SSL_ERROR_WANT_WRITE);
|
---|
2969 | else if (BIO_should_read(bio))
|
---|
2970 | /*
|
---|
2971 | * See above (SSL_want_read(s) with BIO_should_write(bio))
|
---|
2972 | */
|
---|
2973 | return (SSL_ERROR_WANT_READ);
|
---|
2974 | else if (BIO_should_io_special(bio)) {
|
---|
2975 | reason = BIO_get_retry_reason(bio);
|
---|
2976 | if (reason == BIO_RR_CONNECT)
|
---|
2977 | return (SSL_ERROR_WANT_CONNECT);
|
---|
2978 | else if (reason == BIO_RR_ACCEPT)
|
---|
2979 | return (SSL_ERROR_WANT_ACCEPT);
|
---|
2980 | else
|
---|
2981 | return (SSL_ERROR_SYSCALL);
|
---|
2982 | }
|
---|
2983 | }
|
---|
2984 | if (SSL_want_x509_lookup(s)) {
|
---|
2985 | return (SSL_ERROR_WANT_X509_LOOKUP);
|
---|
2986 | }
|
---|
2987 | if (SSL_want_async(s)) {
|
---|
2988 | return SSL_ERROR_WANT_ASYNC;
|
---|
2989 | }
|
---|
2990 | if (SSL_want_async_job(s)) {
|
---|
2991 | return SSL_ERROR_WANT_ASYNC_JOB;
|
---|
2992 | }
|
---|
2993 | }
|
---|
2994 |
|
---|
2995 | if (i == 0) {
|
---|
2996 | if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
|
---|
2997 | (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
|
---|
2998 | return (SSL_ERROR_ZERO_RETURN);
|
---|
2999 | }
|
---|
3000 | return (SSL_ERROR_SYSCALL);
|
---|
3001 | }
|
---|
3002 |
|
---|
3003 | static int ssl_do_handshake_intern(void *vargs)
|
---|
3004 | {
|
---|
3005 | struct ssl_async_args *args;
|
---|
3006 | SSL *s;
|
---|
3007 |
|
---|
3008 | args = (struct ssl_async_args *)vargs;
|
---|
3009 | s = args->s;
|
---|
3010 |
|
---|
3011 | return s->handshake_func(s);
|
---|
3012 | }
|
---|
3013 |
|
---|
3014 | int SSL_do_handshake(SSL *s)
|
---|
3015 | {
|
---|
3016 | int ret = 1;
|
---|
3017 |
|
---|
3018 | if (s->handshake_func == NULL) {
|
---|
3019 | SSLerr(SSL_F_SSL_DO_HANDSHAKE, SSL_R_CONNECTION_TYPE_NOT_SET);
|
---|
3020 | return -1;
|
---|
3021 | }
|
---|
3022 |
|
---|
3023 | s->method->ssl_renegotiate_check(s);
|
---|
3024 |
|
---|
3025 | if (SSL_in_init(s) || SSL_in_before(s)) {
|
---|
3026 | if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
|
---|
3027 | struct ssl_async_args args;
|
---|
3028 |
|
---|
3029 | args.s = s;
|
---|
3030 |
|
---|
3031 | ret = ssl_start_async_job(s, &args, ssl_do_handshake_intern);
|
---|
3032 | } else {
|
---|
3033 | ret = s->handshake_func(s);
|
---|
3034 | }
|
---|
3035 | }
|
---|
3036 | return ret;
|
---|
3037 | }
|
---|
3038 |
|
---|
3039 | void SSL_set_accept_state(SSL *s)
|
---|
3040 | {
|
---|
3041 | s->server = 1;
|
---|
3042 | s->shutdown = 0;
|
---|
3043 | ossl_statem_clear(s);
|
---|
3044 | s->handshake_func = s->method->ssl_accept;
|
---|
3045 | clear_ciphers(s);
|
---|
3046 | }
|
---|
3047 |
|
---|
3048 | void SSL_set_connect_state(SSL *s)
|
---|
3049 | {
|
---|
3050 | s->server = 0;
|
---|
3051 | s->shutdown = 0;
|
---|
3052 | ossl_statem_clear(s);
|
---|
3053 | s->handshake_func = s->method->ssl_connect;
|
---|
3054 | clear_ciphers(s);
|
---|
3055 | }
|
---|
3056 |
|
---|
3057 | int ssl_undefined_function(SSL *s)
|
---|
3058 | {
|
---|
3059 | SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
|
---|
3060 | return (0);
|
---|
3061 | }
|
---|
3062 |
|
---|
3063 | int ssl_undefined_void_function(void)
|
---|
3064 | {
|
---|
3065 | SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION,
|
---|
3066 | ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
|
---|
3067 | return (0);
|
---|
3068 | }
|
---|
3069 |
|
---|
3070 | int ssl_undefined_const_function(const SSL *s)
|
---|
3071 | {
|
---|
3072 | return (0);
|
---|
3073 | }
|
---|
3074 |
|
---|
3075 | const SSL_METHOD *ssl_bad_method(int ver)
|
---|
3076 | {
|
---|
3077 | SSLerr(SSL_F_SSL_BAD_METHOD, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
|
---|
3078 | return (NULL);
|
---|
3079 | }
|
---|
3080 |
|
---|
3081 | const char *ssl_protocol_to_string(int version)
|
---|
3082 | {
|
---|
3083 | if (version == TLS1_2_VERSION)
|
---|
3084 | return "TLSv1.2";
|
---|
3085 | else if (version == TLS1_1_VERSION)
|
---|
3086 | return "TLSv1.1";
|
---|
3087 | else if (version == TLS1_VERSION)
|
---|
3088 | return "TLSv1";
|
---|
3089 | else if (version == SSL3_VERSION)
|
---|
3090 | return "SSLv3";
|
---|
3091 | else if (version == DTLS1_BAD_VER)
|
---|
3092 | return "DTLSv0.9";
|
---|
3093 | else if (version == DTLS1_VERSION)
|
---|
3094 | return "DTLSv1";
|
---|
3095 | else if (version == DTLS1_2_VERSION)
|
---|
3096 | return "DTLSv1.2";
|
---|
3097 | else
|
---|
3098 | return ("unknown");
|
---|
3099 | }
|
---|
3100 |
|
---|
3101 | const char *SSL_get_version(const SSL *s)
|
---|
3102 | {
|
---|
3103 | return ssl_protocol_to_string(s->version);
|
---|
3104 | }
|
---|
3105 |
|
---|
3106 | SSL *SSL_dup(SSL *s)
|
---|
3107 | {
|
---|
3108 | STACK_OF(X509_NAME) *sk;
|
---|
3109 | X509_NAME *xn;
|
---|
3110 | SSL *ret;
|
---|
3111 | int i;
|
---|
3112 |
|
---|
3113 | /* If we're not quiescent, just up_ref! */
|
---|
3114 | if (!SSL_in_init(s) || !SSL_in_before(s)) {
|
---|
3115 | CRYPTO_atomic_add(&s->references, 1, &i, s->lock);
|
---|
3116 | return s;
|
---|
3117 | }
|
---|
3118 |
|
---|
3119 | /*
|
---|
3120 | * Otherwise, copy configuration state, and session if set.
|
---|
3121 | */
|
---|
3122 | if ((ret = SSL_new(SSL_get_SSL_CTX(s))) == NULL)
|
---|
3123 | return (NULL);
|
---|
3124 |
|
---|
3125 | if (s->session != NULL) {
|
---|
3126 | /*
|
---|
3127 | * Arranges to share the same session via up_ref. This "copies"
|
---|
3128 | * session-id, SSL_METHOD, sid_ctx, and 'cert'
|
---|
3129 | */
|
---|
3130 | if (!SSL_copy_session_id(ret, s))
|
---|
3131 | goto err;
|
---|
3132 | } else {
|
---|
3133 | /*
|
---|
3134 | * No session has been established yet, so we have to expect that
|
---|
3135 | * s->cert or ret->cert will be changed later -- they should not both
|
---|
3136 | * point to the same object, and thus we can't use
|
---|
3137 | * SSL_copy_session_id.
|
---|
3138 | */
|
---|
3139 | if (!SSL_set_ssl_method(ret, s->method))
|
---|
3140 | goto err;
|
---|
3141 |
|
---|
3142 | if (s->cert != NULL) {
|
---|
3143 | ssl_cert_free(ret->cert);
|
---|
3144 | ret->cert = ssl_cert_dup(s->cert);
|
---|
3145 | if (ret->cert == NULL)
|
---|
3146 | goto err;
|
---|
3147 | }
|
---|
3148 |
|
---|
3149 | if (!SSL_set_session_id_context(ret, s->sid_ctx, s->sid_ctx_length))
|
---|
3150 | goto err;
|
---|
3151 | }
|
---|
3152 |
|
---|
3153 | if (!ssl_dane_dup(ret, s))
|
---|
3154 | goto err;
|
---|
3155 | ret->version = s->version;
|
---|
3156 | ret->options = s->options;
|
---|
3157 | ret->mode = s->mode;
|
---|
3158 | SSL_set_max_cert_list(ret, SSL_get_max_cert_list(s));
|
---|
3159 | SSL_set_read_ahead(ret, SSL_get_read_ahead(s));
|
---|
3160 | ret->msg_callback = s->msg_callback;
|
---|
3161 | ret->msg_callback_arg = s->msg_callback_arg;
|
---|
3162 | SSL_set_verify(ret, SSL_get_verify_mode(s), SSL_get_verify_callback(s));
|
---|
3163 | SSL_set_verify_depth(ret, SSL_get_verify_depth(s));
|
---|
3164 | ret->generate_session_id = s->generate_session_id;
|
---|
3165 |
|
---|
3166 | SSL_set_info_callback(ret, SSL_get_info_callback(s));
|
---|
3167 |
|
---|
3168 | /* copy app data, a little dangerous perhaps */
|
---|
3169 | if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data))
|
---|
3170 | goto err;
|
---|
3171 |
|
---|
3172 | /* setup rbio, and wbio */
|
---|
3173 | if (s->rbio != NULL) {
|
---|
3174 | if (!BIO_dup_state(s->rbio, (char *)&ret->rbio))
|
---|
3175 | goto err;
|
---|
3176 | }
|
---|
3177 | if (s->wbio != NULL) {
|
---|
3178 | if (s->wbio != s->rbio) {
|
---|
3179 | if (!BIO_dup_state(s->wbio, (char *)&ret->wbio))
|
---|
3180 | goto err;
|
---|
3181 | } else {
|
---|
3182 | BIO_up_ref(ret->rbio);
|
---|
3183 | ret->wbio = ret->rbio;
|
---|
3184 | }
|
---|
3185 | }
|
---|
3186 |
|
---|
3187 | ret->server = s->server;
|
---|
3188 | if (s->handshake_func) {
|
---|
3189 | if (s->server)
|
---|
3190 | SSL_set_accept_state(ret);
|
---|
3191 | else
|
---|
3192 | SSL_set_connect_state(ret);
|
---|
3193 | }
|
---|
3194 | ret->shutdown = s->shutdown;
|
---|
3195 | ret->hit = s->hit;
|
---|
3196 |
|
---|
3197 | ret->default_passwd_callback = s->default_passwd_callback;
|
---|
3198 | ret->default_passwd_callback_userdata = s->default_passwd_callback_userdata;
|
---|
3199 |
|
---|
3200 | X509_VERIFY_PARAM_inherit(ret->param, s->param);
|
---|
3201 |
|
---|
3202 | /* dup the cipher_list and cipher_list_by_id stacks */
|
---|
3203 | if (s->cipher_list != NULL) {
|
---|
3204 | if ((ret->cipher_list = sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
|
---|
3205 | goto err;
|
---|
3206 | }
|
---|
3207 | if (s->cipher_list_by_id != NULL)
|
---|
3208 | if ((ret->cipher_list_by_id = sk_SSL_CIPHER_dup(s->cipher_list_by_id))
|
---|
3209 | == NULL)
|
---|
3210 | goto err;
|
---|
3211 |
|
---|
3212 | /* Dup the client_CA list */
|
---|
3213 | if (s->client_CA != NULL) {
|
---|
3214 | if ((sk = sk_X509_NAME_dup(s->client_CA)) == NULL)
|
---|
3215 | goto err;
|
---|
3216 | ret->client_CA = sk;
|
---|
3217 | for (i = 0; i < sk_X509_NAME_num(sk); i++) {
|
---|
3218 | xn = sk_X509_NAME_value(sk, i);
|
---|
3219 | if (sk_X509_NAME_set(sk, i, X509_NAME_dup(xn)) == NULL) {
|
---|
3220 | X509_NAME_free(xn);
|
---|
3221 | goto err;
|
---|
3222 | }
|
---|
3223 | }
|
---|
3224 | }
|
---|
3225 | return ret;
|
---|
3226 |
|
---|
3227 | err:
|
---|
3228 | SSL_free(ret);
|
---|
3229 | return NULL;
|
---|
3230 | }
|
---|
3231 |
|
---|
3232 | void ssl_clear_cipher_ctx(SSL *s)
|
---|
3233 | {
|
---|
3234 | if (s->enc_read_ctx != NULL) {
|
---|
3235 | EVP_CIPHER_CTX_free(s->enc_read_ctx);
|
---|
3236 | s->enc_read_ctx = NULL;
|
---|
3237 | }
|
---|
3238 | if (s->enc_write_ctx != NULL) {
|
---|
3239 | EVP_CIPHER_CTX_free(s->enc_write_ctx);
|
---|
3240 | s->enc_write_ctx = NULL;
|
---|
3241 | }
|
---|
3242 | #ifndef OPENSSL_NO_COMP
|
---|
3243 | COMP_CTX_free(s->expand);
|
---|
3244 | s->expand = NULL;
|
---|
3245 | COMP_CTX_free(s->compress);
|
---|
3246 | s->compress = NULL;
|
---|
3247 | #endif
|
---|
3248 | }
|
---|
3249 |
|
---|
3250 | X509 *SSL_get_certificate(const SSL *s)
|
---|
3251 | {
|
---|
3252 | if (s->cert != NULL)
|
---|
3253 | return (s->cert->key->x509);
|
---|
3254 | else
|
---|
3255 | return (NULL);
|
---|
3256 | }
|
---|
3257 |
|
---|
3258 | EVP_PKEY *SSL_get_privatekey(const SSL *s)
|
---|
3259 | {
|
---|
3260 | if (s->cert != NULL)
|
---|
3261 | return (s->cert->key->privatekey);
|
---|
3262 | else
|
---|
3263 | return (NULL);
|
---|
3264 | }
|
---|
3265 |
|
---|
3266 | X509 *SSL_CTX_get0_certificate(const SSL_CTX *ctx)
|
---|
3267 | {
|
---|
3268 | if (ctx->cert != NULL)
|
---|
3269 | return ctx->cert->key->x509;
|
---|
3270 | else
|
---|
3271 | return NULL;
|
---|
3272 | }
|
---|
3273 |
|
---|
3274 | EVP_PKEY *SSL_CTX_get0_privatekey(const SSL_CTX *ctx)
|
---|
3275 | {
|
---|
3276 | if (ctx->cert != NULL)
|
---|
3277 | return ctx->cert->key->privatekey;
|
---|
3278 | else
|
---|
3279 | return NULL;
|
---|
3280 | }
|
---|
3281 |
|
---|
3282 | const SSL_CIPHER *SSL_get_current_cipher(const SSL *s)
|
---|
3283 | {
|
---|
3284 | if ((s->session != NULL) && (s->session->cipher != NULL))
|
---|
3285 | return (s->session->cipher);
|
---|
3286 | return (NULL);
|
---|
3287 | }
|
---|
3288 |
|
---|
3289 | const COMP_METHOD *SSL_get_current_compression(SSL *s)
|
---|
3290 | {
|
---|
3291 | #ifndef OPENSSL_NO_COMP
|
---|
3292 | return s->compress ? COMP_CTX_get_method(s->compress) : NULL;
|
---|
3293 | #else
|
---|
3294 | return NULL;
|
---|
3295 | #endif
|
---|
3296 | }
|
---|
3297 |
|
---|
3298 | const COMP_METHOD *SSL_get_current_expansion(SSL *s)
|
---|
3299 | {
|
---|
3300 | #ifndef OPENSSL_NO_COMP
|
---|
3301 | return s->expand ? COMP_CTX_get_method(s->expand) : NULL;
|
---|
3302 | #else
|
---|
3303 | return NULL;
|
---|
3304 | #endif
|
---|
3305 | }
|
---|
3306 |
|
---|
3307 | int ssl_init_wbio_buffer(SSL *s)
|
---|
3308 | {
|
---|
3309 | BIO *bbio;
|
---|
3310 |
|
---|
3311 | if (s->bbio != NULL) {
|
---|
3312 | /* Already buffered. */
|
---|
3313 | return 1;
|
---|
3314 | }
|
---|
3315 |
|
---|
3316 | bbio = BIO_new(BIO_f_buffer());
|
---|
3317 | if (bbio == NULL || !BIO_set_read_buffer_size(bbio, 1)) {
|
---|
3318 | BIO_free(bbio);
|
---|
3319 | SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER, ERR_R_BUF_LIB);
|
---|
3320 | return 0;
|
---|
3321 | }
|
---|
3322 | s->bbio = bbio;
|
---|
3323 | s->wbio = BIO_push(bbio, s->wbio);
|
---|
3324 |
|
---|
3325 | return 1;
|
---|
3326 | }
|
---|
3327 |
|
---|
3328 | void ssl_free_wbio_buffer(SSL *s)
|
---|
3329 | {
|
---|
3330 | /* callers ensure s is never null */
|
---|
3331 | if (s->bbio == NULL)
|
---|
3332 | return;
|
---|
3333 |
|
---|
3334 | s->wbio = BIO_pop(s->wbio);
|
---|
3335 | assert(s->wbio != NULL);
|
---|
3336 | BIO_free(s->bbio);
|
---|
3337 | s->bbio = NULL;
|
---|
3338 | }
|
---|
3339 |
|
---|
3340 | void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode)
|
---|
3341 | {
|
---|
3342 | ctx->quiet_shutdown = mode;
|
---|
3343 | }
|
---|
3344 |
|
---|
3345 | int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx)
|
---|
3346 | {
|
---|
3347 | return (ctx->quiet_shutdown);
|
---|
3348 | }
|
---|
3349 |
|
---|
3350 | void SSL_set_quiet_shutdown(SSL *s, int mode)
|
---|
3351 | {
|
---|
3352 | s->quiet_shutdown = mode;
|
---|
3353 | }
|
---|
3354 |
|
---|
3355 | int SSL_get_quiet_shutdown(const SSL *s)
|
---|
3356 | {
|
---|
3357 | return (s->quiet_shutdown);
|
---|
3358 | }
|
---|
3359 |
|
---|
3360 | void SSL_set_shutdown(SSL *s, int mode)
|
---|
3361 | {
|
---|
3362 | s->shutdown = mode;
|
---|
3363 | }
|
---|
3364 |
|
---|
3365 | int SSL_get_shutdown(const SSL *s)
|
---|
3366 | {
|
---|
3367 | return s->shutdown;
|
---|
3368 | }
|
---|
3369 |
|
---|
3370 | int SSL_version(const SSL *s)
|
---|
3371 | {
|
---|
3372 | return s->version;
|
---|
3373 | }
|
---|
3374 |
|
---|
3375 | int SSL_client_version(const SSL *s)
|
---|
3376 | {
|
---|
3377 | return s->client_version;
|
---|
3378 | }
|
---|
3379 |
|
---|
3380 | SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl)
|
---|
3381 | {
|
---|
3382 | return ssl->ctx;
|
---|
3383 | }
|
---|
3384 |
|
---|
3385 | SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX *ctx)
|
---|
3386 | {
|
---|
3387 | CERT *new_cert;
|
---|
3388 | if (ssl->ctx == ctx)
|
---|
3389 | return ssl->ctx;
|
---|
3390 | if (ctx == NULL)
|
---|
3391 | ctx = ssl->session_ctx;
|
---|
3392 | new_cert = ssl_cert_dup(ctx->cert);
|
---|
3393 | if (new_cert == NULL) {
|
---|
3394 | return NULL;
|
---|
3395 | }
|
---|
3396 | ssl_cert_free(ssl->cert);
|
---|
3397 | ssl->cert = new_cert;
|
---|
3398 |
|
---|
3399 | /*
|
---|
3400 | * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH),
|
---|
3401 | * so setter APIs must prevent invalid lengths from entering the system.
|
---|
3402 | */
|
---|
3403 | OPENSSL_assert(ssl->sid_ctx_length <= sizeof(ssl->sid_ctx));
|
---|
3404 |
|
---|
3405 | /*
|
---|
3406 | * If the session ID context matches that of the parent SSL_CTX,
|
---|
3407 | * inherit it from the new SSL_CTX as well. If however the context does
|
---|
3408 | * not match (i.e., it was set per-ssl with SSL_set_session_id_context),
|
---|
3409 | * leave it unchanged.
|
---|
3410 | */
|
---|
3411 | if ((ssl->ctx != NULL) &&
|
---|
3412 | (ssl->sid_ctx_length == ssl->ctx->sid_ctx_length) &&
|
---|
3413 | (memcmp(ssl->sid_ctx, ssl->ctx->sid_ctx, ssl->sid_ctx_length) == 0)) {
|
---|
3414 | ssl->sid_ctx_length = ctx->sid_ctx_length;
|
---|
3415 | memcpy(&ssl->sid_ctx, &ctx->sid_ctx, sizeof(ssl->sid_ctx));
|
---|
3416 | }
|
---|
3417 |
|
---|
3418 | SSL_CTX_up_ref(ctx);
|
---|
3419 | SSL_CTX_free(ssl->ctx); /* decrement reference count */
|
---|
3420 | ssl->ctx = ctx;
|
---|
3421 |
|
---|
3422 | return ssl->ctx;
|
---|
3423 | }
|
---|
3424 |
|
---|
3425 | int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
|
---|
3426 | {
|
---|
3427 | return (X509_STORE_set_default_paths(ctx->cert_store));
|
---|
3428 | }
|
---|
3429 |
|
---|
3430 | int SSL_CTX_set_default_verify_dir(SSL_CTX *ctx)
|
---|
3431 | {
|
---|
3432 | X509_LOOKUP *lookup;
|
---|
3433 |
|
---|
3434 | lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_hash_dir());
|
---|
3435 | if (lookup == NULL)
|
---|
3436 | return 0;
|
---|
3437 | X509_LOOKUP_add_dir(lookup, NULL, X509_FILETYPE_DEFAULT);
|
---|
3438 |
|
---|
3439 | /* Clear any errors if the default directory does not exist */
|
---|
3440 | ERR_clear_error();
|
---|
3441 |
|
---|
3442 | return 1;
|
---|
3443 | }
|
---|
3444 |
|
---|
3445 | int SSL_CTX_set_default_verify_file(SSL_CTX *ctx)
|
---|
3446 | {
|
---|
3447 | X509_LOOKUP *lookup;
|
---|
3448 |
|
---|
3449 | lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_file());
|
---|
3450 | if (lookup == NULL)
|
---|
3451 | return 0;
|
---|
3452 |
|
---|
3453 | X509_LOOKUP_load_file(lookup, NULL, X509_FILETYPE_DEFAULT);
|
---|
3454 |
|
---|
3455 | /* Clear any errors if the default file does not exist */
|
---|
3456 | ERR_clear_error();
|
---|
3457 |
|
---|
3458 | return 1;
|
---|
3459 | }
|
---|
3460 |
|
---|
3461 | int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
|
---|
3462 | const char *CApath)
|
---|
3463 | {
|
---|
3464 | return (X509_STORE_load_locations(ctx->cert_store, CAfile, CApath));
|
---|
3465 | }
|
---|
3466 |
|
---|
3467 | void SSL_set_info_callback(SSL *ssl,
|
---|
3468 | void (*cb) (const SSL *ssl, int type, int val))
|
---|
3469 | {
|
---|
3470 | ssl->info_callback = cb;
|
---|
3471 | }
|
---|
3472 |
|
---|
3473 | /*
|
---|
3474 | * One compiler (Diab DCC) doesn't like argument names in returned function
|
---|
3475 | * pointer.
|
---|
3476 | */
|
---|
3477 | void (*SSL_get_info_callback(const SSL *ssl)) (const SSL * /* ssl */ ,
|
---|
3478 | int /* type */ ,
|
---|
3479 | int /* val */ ) {
|
---|
3480 | return ssl->info_callback;
|
---|
3481 | }
|
---|
3482 |
|
---|
3483 | void SSL_set_verify_result(SSL *ssl, long arg)
|
---|
3484 | {
|
---|
3485 | ssl->verify_result = arg;
|
---|
3486 | }
|
---|
3487 |
|
---|
3488 | long SSL_get_verify_result(const SSL *ssl)
|
---|
3489 | {
|
---|
3490 | return (ssl->verify_result);
|
---|
3491 | }
|
---|
3492 |
|
---|
3493 | size_t SSL_get_client_random(const SSL *ssl, unsigned char *out, size_t outlen)
|
---|
3494 | {
|
---|
3495 | if (outlen == 0)
|
---|
3496 | return sizeof(ssl->s3->client_random);
|
---|
3497 | if (outlen > sizeof(ssl->s3->client_random))
|
---|
3498 | outlen = sizeof(ssl->s3->client_random);
|
---|
3499 | memcpy(out, ssl->s3->client_random, outlen);
|
---|
3500 | return outlen;
|
---|
3501 | }
|
---|
3502 |
|
---|
3503 | size_t SSL_get_server_random(const SSL *ssl, unsigned char *out, size_t outlen)
|
---|
3504 | {
|
---|
3505 | if (outlen == 0)
|
---|
3506 | return sizeof(ssl->s3->server_random);
|
---|
3507 | if (outlen > sizeof(ssl->s3->server_random))
|
---|
3508 | outlen = sizeof(ssl->s3->server_random);
|
---|
3509 | memcpy(out, ssl->s3->server_random, outlen);
|
---|
3510 | return outlen;
|
---|
3511 | }
|
---|
3512 |
|
---|
3513 | size_t SSL_SESSION_get_master_key(const SSL_SESSION *session,
|
---|
3514 | unsigned char *out, size_t outlen)
|
---|
3515 | {
|
---|
3516 | if (session->master_key_length < 0) {
|
---|
3517 | /* Should never happen */
|
---|
3518 | return 0;
|
---|
3519 | }
|
---|
3520 | if (outlen == 0)
|
---|
3521 | return session->master_key_length;
|
---|
3522 | if (outlen > (size_t)session->master_key_length)
|
---|
3523 | outlen = session->master_key_length;
|
---|
3524 | memcpy(out, session->master_key, outlen);
|
---|
3525 | return outlen;
|
---|
3526 | }
|
---|
3527 |
|
---|
3528 | int SSL_set_ex_data(SSL *s, int idx, void *arg)
|
---|
3529 | {
|
---|
3530 | return (CRYPTO_set_ex_data(&s->ex_data, idx, arg));
|
---|
3531 | }
|
---|
3532 |
|
---|
3533 | void *SSL_get_ex_data(const SSL *s, int idx)
|
---|
3534 | {
|
---|
3535 | return (CRYPTO_get_ex_data(&s->ex_data, idx));
|
---|
3536 | }
|
---|
3537 |
|
---|
3538 | int SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg)
|
---|
3539 | {
|
---|
3540 | return (CRYPTO_set_ex_data(&s->ex_data, idx, arg));
|
---|
3541 | }
|
---|
3542 |
|
---|
3543 | void *SSL_CTX_get_ex_data(const SSL_CTX *s, int idx)
|
---|
3544 | {
|
---|
3545 | return (CRYPTO_get_ex_data(&s->ex_data, idx));
|
---|
3546 | }
|
---|
3547 |
|
---|
3548 | int ssl_ok(SSL *s)
|
---|
3549 | {
|
---|
3550 | return (1);
|
---|
3551 | }
|
---|
3552 |
|
---|
3553 | X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx)
|
---|
3554 | {
|
---|
3555 | return (ctx->cert_store);
|
---|
3556 | }
|
---|
3557 |
|
---|
3558 | void SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store)
|
---|
3559 | {
|
---|
3560 | X509_STORE_free(ctx->cert_store);
|
---|
3561 | ctx->cert_store = store;
|
---|
3562 | }
|
---|
3563 |
|
---|
3564 | int SSL_want(const SSL *s)
|
---|
3565 | {
|
---|
3566 | return (s->rwstate);
|
---|
3567 | }
|
---|
3568 |
|
---|
3569 | /**
|
---|
3570 | * \brief Set the callback for generating temporary DH keys.
|
---|
3571 | * \param ctx the SSL context.
|
---|
3572 | * \param dh the callback
|
---|
3573 | */
|
---|
3574 |
|
---|
3575 | #ifndef OPENSSL_NO_DH
|
---|
3576 | void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,
|
---|
3577 | DH *(*dh) (SSL *ssl, int is_export,
|
---|
3578 | int keylength))
|
---|
3579 | {
|
---|
3580 | SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh);
|
---|
3581 | }
|
---|
3582 |
|
---|
3583 | void SSL_set_tmp_dh_callback(SSL *ssl, DH *(*dh) (SSL *ssl, int is_export,
|
---|
3584 | int keylength))
|
---|
3585 | {
|
---|
3586 | SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh);
|
---|
3587 | }
|
---|
3588 | #endif
|
---|
3589 |
|
---|
3590 | #ifndef OPENSSL_NO_PSK
|
---|
3591 | int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint)
|
---|
3592 | {
|
---|
3593 | if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
|
---|
3594 | SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
|
---|
3595 | return 0;
|
---|
3596 | }
|
---|
3597 | OPENSSL_free(ctx->cert->psk_identity_hint);
|
---|
3598 | if (identity_hint != NULL) {
|
---|
3599 | ctx->cert->psk_identity_hint = OPENSSL_strdup(identity_hint);
|
---|
3600 | if (ctx->cert->psk_identity_hint == NULL)
|
---|
3601 | return 0;
|
---|
3602 | } else
|
---|
3603 | ctx->cert->psk_identity_hint = NULL;
|
---|
3604 | return 1;
|
---|
3605 | }
|
---|
3606 |
|
---|
3607 | int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint)
|
---|
3608 | {
|
---|
3609 | if (s == NULL)
|
---|
3610 | return 0;
|
---|
3611 |
|
---|
3612 | if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
|
---|
3613 | SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
|
---|
3614 | return 0;
|
---|
3615 | }
|
---|
3616 | OPENSSL_free(s->cert->psk_identity_hint);
|
---|
3617 | if (identity_hint != NULL) {
|
---|
3618 | s->cert->psk_identity_hint = OPENSSL_strdup(identity_hint);
|
---|
3619 | if (s->cert->psk_identity_hint == NULL)
|
---|
3620 | return 0;
|
---|
3621 | } else
|
---|
3622 | s->cert->psk_identity_hint = NULL;
|
---|
3623 | return 1;
|
---|
3624 | }
|
---|
3625 |
|
---|
3626 | const char *SSL_get_psk_identity_hint(const SSL *s)
|
---|
3627 | {
|
---|
3628 | if (s == NULL || s->session == NULL)
|
---|
3629 | return NULL;
|
---|
3630 | return (s->session->psk_identity_hint);
|
---|
3631 | }
|
---|
3632 |
|
---|
3633 | const char *SSL_get_psk_identity(const SSL *s)
|
---|
3634 | {
|
---|
3635 | if (s == NULL || s->session == NULL)
|
---|
3636 | return NULL;
|
---|
3637 | return (s->session->psk_identity);
|
---|
3638 | }
|
---|
3639 |
|
---|
3640 | void SSL_set_psk_client_callback(SSL *s,
|
---|
3641 | unsigned int (*cb) (SSL *ssl,
|
---|
3642 | const char *hint,
|
---|
3643 | char *identity,
|
---|
3644 | unsigned int
|
---|
3645 | max_identity_len,
|
---|
3646 | unsigned char *psk,
|
---|
3647 | unsigned int max_psk_len))
|
---|
3648 | {
|
---|
3649 | s->psk_client_callback = cb;
|
---|
3650 | }
|
---|
3651 |
|
---|
3652 | void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx,
|
---|
3653 | unsigned int (*cb) (SSL *ssl,
|
---|
3654 | const char *hint,
|
---|
3655 | char *identity,
|
---|
3656 | unsigned int
|
---|
3657 | max_identity_len,
|
---|
3658 | unsigned char *psk,
|
---|
3659 | unsigned int
|
---|
3660 | max_psk_len))
|
---|
3661 | {
|
---|
3662 | ctx->psk_client_callback = cb;
|
---|
3663 | }
|
---|
3664 |
|
---|
3665 | void SSL_set_psk_server_callback(SSL *s,
|
---|
3666 | unsigned int (*cb) (SSL *ssl,
|
---|
3667 | const char *identity,
|
---|
3668 | unsigned char *psk,
|
---|
3669 | unsigned int max_psk_len))
|
---|
3670 | {
|
---|
3671 | s->psk_server_callback = cb;
|
---|
3672 | }
|
---|
3673 |
|
---|
3674 | void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx,
|
---|
3675 | unsigned int (*cb) (SSL *ssl,
|
---|
3676 | const char *identity,
|
---|
3677 | unsigned char *psk,
|
---|
3678 | unsigned int
|
---|
3679 | max_psk_len))
|
---|
3680 | {
|
---|
3681 | ctx->psk_server_callback = cb;
|
---|
3682 | }
|
---|
3683 | #endif
|
---|
3684 |
|
---|
3685 | void SSL_CTX_set_msg_callback(SSL_CTX *ctx,
|
---|
3686 | void (*cb) (int write_p, int version,
|
---|
3687 | int content_type, const void *buf,
|
---|
3688 | size_t len, SSL *ssl, void *arg))
|
---|
3689 | {
|
---|
3690 | SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
|
---|
3691 | }
|
---|
3692 |
|
---|
3693 | void SSL_set_msg_callback(SSL *ssl,
|
---|
3694 | void (*cb) (int write_p, int version,
|
---|
3695 | int content_type, const void *buf,
|
---|
3696 | size_t len, SSL *ssl, void *arg))
|
---|
3697 | {
|
---|
3698 | SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
|
---|
3699 | }
|
---|
3700 |
|
---|
3701 | void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx,
|
---|
3702 | int (*cb) (SSL *ssl,
|
---|
3703 | int
|
---|
3704 | is_forward_secure))
|
---|
3705 | {
|
---|
3706 | SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
|
---|
3707 | (void (*)(void))cb);
|
---|
3708 | }
|
---|
3709 |
|
---|
3710 | void SSL_set_not_resumable_session_callback(SSL *ssl,
|
---|
3711 | int (*cb) (SSL *ssl,
|
---|
3712 | int is_forward_secure))
|
---|
3713 | {
|
---|
3714 | SSL_callback_ctrl(ssl, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
|
---|
3715 | (void (*)(void))cb);
|
---|
3716 | }
|
---|
3717 |
|
---|
3718 | /*
|
---|
3719 | * Allocates new EVP_MD_CTX and sets pointer to it into given pointer
|
---|
3720 | * variable, freeing EVP_MD_CTX previously stored in that variable, if any.
|
---|
3721 | * If EVP_MD pointer is passed, initializes ctx with this md Returns newly
|
---|
3722 | * allocated ctx;
|
---|
3723 | */
|
---|
3724 |
|
---|
3725 | EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash, const EVP_MD *md)
|
---|
3726 | {
|
---|
3727 | ssl_clear_hash_ctx(hash);
|
---|
3728 | *hash = EVP_MD_CTX_new();
|
---|
3729 | if (*hash == NULL || (md && EVP_DigestInit_ex(*hash, md, NULL) <= 0)) {
|
---|
3730 | EVP_MD_CTX_free(*hash);
|
---|
3731 | *hash = NULL;
|
---|
3732 | return NULL;
|
---|
3733 | }
|
---|
3734 | return *hash;
|
---|
3735 | }
|
---|
3736 |
|
---|
3737 | void ssl_clear_hash_ctx(EVP_MD_CTX **hash)
|
---|
3738 | {
|
---|
3739 |
|
---|
3740 | if (*hash)
|
---|
3741 | EVP_MD_CTX_free(*hash);
|
---|
3742 | *hash = NULL;
|
---|
3743 | }
|
---|
3744 |
|
---|
3745 | /* Retrieve handshake hashes */
|
---|
3746 | int ssl_handshake_hash(SSL *s, unsigned char *out, int outlen)
|
---|
3747 | {
|
---|
3748 | EVP_MD_CTX *ctx = NULL;
|
---|
3749 | EVP_MD_CTX *hdgst = s->s3->handshake_dgst;
|
---|
3750 | int ret = EVP_MD_CTX_size(hdgst);
|
---|
3751 | if (ret < 0 || ret > outlen) {
|
---|
3752 | ret = 0;
|
---|
3753 | goto err;
|
---|
3754 | }
|
---|
3755 | ctx = EVP_MD_CTX_new();
|
---|
3756 | if (ctx == NULL) {
|
---|
3757 | ret = 0;
|
---|
3758 | goto err;
|
---|
3759 | }
|
---|
3760 | if (!EVP_MD_CTX_copy_ex(ctx, hdgst)
|
---|
3761 | || EVP_DigestFinal_ex(ctx, out, NULL) <= 0)
|
---|
3762 | ret = 0;
|
---|
3763 | err:
|
---|
3764 | EVP_MD_CTX_free(ctx);
|
---|
3765 | return ret;
|
---|
3766 | }
|
---|
3767 |
|
---|
3768 | int SSL_session_reused(SSL *s)
|
---|
3769 | {
|
---|
3770 | return s->hit;
|
---|
3771 | }
|
---|
3772 |
|
---|
3773 | int SSL_is_server(SSL *s)
|
---|
3774 | {
|
---|
3775 | return s->server;
|
---|
3776 | }
|
---|
3777 |
|
---|
3778 | #if OPENSSL_API_COMPAT < 0x10100000L
|
---|
3779 | void SSL_set_debug(SSL *s, int debug)
|
---|
3780 | {
|
---|
3781 | /* Old function was do-nothing anyway... */
|
---|
3782 | (void)s;
|
---|
3783 | (void)debug;
|
---|
3784 | }
|
---|
3785 | #endif
|
---|
3786 |
|
---|
3787 | void SSL_set_security_level(SSL *s, int level)
|
---|
3788 | {
|
---|
3789 | s->cert->sec_level = level;
|
---|
3790 | }
|
---|
3791 |
|
---|
3792 | int SSL_get_security_level(const SSL *s)
|
---|
3793 | {
|
---|
3794 | return s->cert->sec_level;
|
---|
3795 | }
|
---|
3796 |
|
---|
3797 | void SSL_set_security_callback(SSL *s,
|
---|
3798 | int (*cb) (const SSL *s, const SSL_CTX *ctx,
|
---|
3799 | int op, int bits, int nid,
|
---|
3800 | void *other, void *ex))
|
---|
3801 | {
|
---|
3802 | s->cert->sec_cb = cb;
|
---|
3803 | }
|
---|
3804 |
|
---|
3805 | int (*SSL_get_security_callback(const SSL *s)) (const SSL *s,
|
---|
3806 | const SSL_CTX *ctx, int op,
|
---|
3807 | int bits, int nid, void *other,
|
---|
3808 | void *ex) {
|
---|
3809 | return s->cert->sec_cb;
|
---|
3810 | }
|
---|
3811 |
|
---|
3812 | void SSL_set0_security_ex_data(SSL *s, void *ex)
|
---|
3813 | {
|
---|
3814 | s->cert->sec_ex = ex;
|
---|
3815 | }
|
---|
3816 |
|
---|
3817 | void *SSL_get0_security_ex_data(const SSL *s)
|
---|
3818 | {
|
---|
3819 | return s->cert->sec_ex;
|
---|
3820 | }
|
---|
3821 |
|
---|
3822 | void SSL_CTX_set_security_level(SSL_CTX *ctx, int level)
|
---|
3823 | {
|
---|
3824 | ctx->cert->sec_level = level;
|
---|
3825 | }
|
---|
3826 |
|
---|
3827 | int SSL_CTX_get_security_level(const SSL_CTX *ctx)
|
---|
3828 | {
|
---|
3829 | return ctx->cert->sec_level;
|
---|
3830 | }
|
---|
3831 |
|
---|
3832 | void SSL_CTX_set_security_callback(SSL_CTX *ctx,
|
---|
3833 | int (*cb) (const SSL *s, const SSL_CTX *ctx,
|
---|
3834 | int op, int bits, int nid,
|
---|
3835 | void *other, void *ex))
|
---|
3836 | {
|
---|
3837 | ctx->cert->sec_cb = cb;
|
---|
3838 | }
|
---|
3839 |
|
---|
3840 | int (*SSL_CTX_get_security_callback(const SSL_CTX *ctx)) (const SSL *s,
|
---|
3841 | const SSL_CTX *ctx,
|
---|
3842 | int op, int bits,
|
---|
3843 | int nid,
|
---|
3844 | void *other,
|
---|
3845 | void *ex) {
|
---|
3846 | return ctx->cert->sec_cb;
|
---|
3847 | }
|
---|
3848 |
|
---|
3849 | void SSL_CTX_set0_security_ex_data(SSL_CTX *ctx, void *ex)
|
---|
3850 | {
|
---|
3851 | ctx->cert->sec_ex = ex;
|
---|
3852 | }
|
---|
3853 |
|
---|
3854 | void *SSL_CTX_get0_security_ex_data(const SSL_CTX *ctx)
|
---|
3855 | {
|
---|
3856 | return ctx->cert->sec_ex;
|
---|
3857 | }
|
---|
3858 |
|
---|
3859 | /*
|
---|
3860 | * Get/Set/Clear options in SSL_CTX or SSL, formerly macros, now functions that
|
---|
3861 | * can return unsigned long, instead of the generic long return value from the
|
---|
3862 | * control interface.
|
---|
3863 | */
|
---|
3864 | unsigned long SSL_CTX_get_options(const SSL_CTX *ctx)
|
---|
3865 | {
|
---|
3866 | return ctx->options;
|
---|
3867 | }
|
---|
3868 |
|
---|
3869 | unsigned long SSL_get_options(const SSL *s)
|
---|
3870 | {
|
---|
3871 | return s->options;
|
---|
3872 | }
|
---|
3873 |
|
---|
3874 | unsigned long SSL_CTX_set_options(SSL_CTX *ctx, unsigned long op)
|
---|
3875 | {
|
---|
3876 | return ctx->options |= op;
|
---|
3877 | }
|
---|
3878 |
|
---|
3879 | unsigned long SSL_set_options(SSL *s, unsigned long op)
|
---|
3880 | {
|
---|
3881 | return s->options |= op;
|
---|
3882 | }
|
---|
3883 |
|
---|
3884 | unsigned long SSL_CTX_clear_options(SSL_CTX *ctx, unsigned long op)
|
---|
3885 | {
|
---|
3886 | return ctx->options &= ~op;
|
---|
3887 | }
|
---|
3888 |
|
---|
3889 | unsigned long SSL_clear_options(SSL *s, unsigned long op)
|
---|
3890 | {
|
---|
3891 | return s->options &= ~op;
|
---|
3892 | }
|
---|
3893 |
|
---|
3894 | STACK_OF(X509) *SSL_get0_verified_chain(const SSL *s)
|
---|
3895 | {
|
---|
3896 | return s->verified_chain;
|
---|
3897 | }
|
---|
3898 |
|
---|
3899 | IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id);
|
---|
3900 |
|
---|
3901 | #ifndef OPENSSL_NO_CT
|
---|
3902 |
|
---|
3903 | /*
|
---|
3904 | * Moves SCTs from the |src| stack to the |dst| stack.
|
---|
3905 | * The source of each SCT will be set to |origin|.
|
---|
3906 | * If |dst| points to a NULL pointer, a new stack will be created and owned by
|
---|
3907 | * the caller.
|
---|
3908 | * Returns the number of SCTs moved, or a negative integer if an error occurs.
|
---|
3909 | */
|
---|
3910 | static int ct_move_scts(STACK_OF(SCT) **dst, STACK_OF(SCT) *src,
|
---|
3911 | sct_source_t origin)
|
---|
3912 | {
|
---|
3913 | int scts_moved = 0;
|
---|
3914 | SCT *sct = NULL;
|
---|
3915 |
|
---|
3916 | if (*dst == NULL) {
|
---|
3917 | *dst = sk_SCT_new_null();
|
---|
3918 | if (*dst == NULL) {
|
---|
3919 | SSLerr(SSL_F_CT_MOVE_SCTS, ERR_R_MALLOC_FAILURE);
|
---|
3920 | goto err;
|
---|
3921 | }
|
---|
3922 | }
|
---|
3923 |
|
---|
3924 | while ((sct = sk_SCT_pop(src)) != NULL) {
|
---|
3925 | if (SCT_set_source(sct, origin) != 1)
|
---|
3926 | goto err;
|
---|
3927 |
|
---|
3928 | if (sk_SCT_push(*dst, sct) <= 0)
|
---|
3929 | goto err;
|
---|
3930 | scts_moved += 1;
|
---|
3931 | }
|
---|
3932 |
|
---|
3933 | return scts_moved;
|
---|
3934 | err:
|
---|
3935 | if (sct != NULL)
|
---|
3936 | sk_SCT_push(src, sct); /* Put the SCT back */
|
---|
3937 | return -1;
|
---|
3938 | }
|
---|
3939 |
|
---|
3940 | /*
|
---|
3941 | * Look for data collected during ServerHello and parse if found.
|
---|
3942 | * Returns the number of SCTs extracted.
|
---|
3943 | */
|
---|
3944 | static int ct_extract_tls_extension_scts(SSL *s)
|
---|
3945 | {
|
---|
3946 | int scts_extracted = 0;
|
---|
3947 |
|
---|
3948 | if (s->tlsext_scts != NULL) {
|
---|
3949 | const unsigned char *p = s->tlsext_scts;
|
---|
3950 | STACK_OF(SCT) *scts = o2i_SCT_LIST(NULL, &p, s->tlsext_scts_len);
|
---|
3951 |
|
---|
3952 | scts_extracted = ct_move_scts(&s->scts, scts, SCT_SOURCE_TLS_EXTENSION);
|
---|
3953 |
|
---|
3954 | SCT_LIST_free(scts);
|
---|
3955 | }
|
---|
3956 |
|
---|
3957 | return scts_extracted;
|
---|
3958 | }
|
---|
3959 |
|
---|
3960 | /*
|
---|
3961 | * Checks for an OCSP response and then attempts to extract any SCTs found if it
|
---|
3962 | * contains an SCT X509 extension. They will be stored in |s->scts|.
|
---|
3963 | * Returns:
|
---|
3964 | * - The number of SCTs extracted, assuming an OCSP response exists.
|
---|
3965 | * - 0 if no OCSP response exists or it contains no SCTs.
|
---|
3966 | * - A negative integer if an error occurs.
|
---|
3967 | */
|
---|
3968 | static int ct_extract_ocsp_response_scts(SSL *s)
|
---|
3969 | {
|
---|
3970 | # ifndef OPENSSL_NO_OCSP
|
---|
3971 | int scts_extracted = 0;
|
---|
3972 | const unsigned char *p;
|
---|
3973 | OCSP_BASICRESP *br = NULL;
|
---|
3974 | OCSP_RESPONSE *rsp = NULL;
|
---|
3975 | STACK_OF(SCT) *scts = NULL;
|
---|
3976 | int i;
|
---|
3977 |
|
---|
3978 | if (s->tlsext_ocsp_resp == NULL || s->tlsext_ocsp_resplen == 0)
|
---|
3979 | goto err;
|
---|
3980 |
|
---|
3981 | p = s->tlsext_ocsp_resp;
|
---|
3982 | rsp = d2i_OCSP_RESPONSE(NULL, &p, s->tlsext_ocsp_resplen);
|
---|
3983 | if (rsp == NULL)
|
---|
3984 | goto err;
|
---|
3985 |
|
---|
3986 | br = OCSP_response_get1_basic(rsp);
|
---|
3987 | if (br == NULL)
|
---|
3988 | goto err;
|
---|
3989 |
|
---|
3990 | for (i = 0; i < OCSP_resp_count(br); ++i) {
|
---|
3991 | OCSP_SINGLERESP *single = OCSP_resp_get0(br, i);
|
---|
3992 |
|
---|
3993 | if (single == NULL)
|
---|
3994 | continue;
|
---|
3995 |
|
---|
3996 | scts =
|
---|
3997 | OCSP_SINGLERESP_get1_ext_d2i(single, NID_ct_cert_scts, NULL, NULL);
|
---|
3998 | scts_extracted =
|
---|
3999 | ct_move_scts(&s->scts, scts, SCT_SOURCE_OCSP_STAPLED_RESPONSE);
|
---|
4000 | if (scts_extracted < 0)
|
---|
4001 | goto err;
|
---|
4002 | }
|
---|
4003 | err:
|
---|
4004 | SCT_LIST_free(scts);
|
---|
4005 | OCSP_BASICRESP_free(br);
|
---|
4006 | OCSP_RESPONSE_free(rsp);
|
---|
4007 | return scts_extracted;
|
---|
4008 | # else
|
---|
4009 | /* Behave as if no OCSP response exists */
|
---|
4010 | return 0;
|
---|
4011 | # endif
|
---|
4012 | }
|
---|
4013 |
|
---|
4014 | /*
|
---|
4015 | * Attempts to extract SCTs from the peer certificate.
|
---|
4016 | * Return the number of SCTs extracted, or a negative integer if an error
|
---|
4017 | * occurs.
|
---|
4018 | */
|
---|
4019 | static int ct_extract_x509v3_extension_scts(SSL *s)
|
---|
4020 | {
|
---|
4021 | int scts_extracted = 0;
|
---|
4022 | X509 *cert = s->session != NULL ? s->session->peer : NULL;
|
---|
4023 |
|
---|
4024 | if (cert != NULL) {
|
---|
4025 | STACK_OF(SCT) *scts =
|
---|
4026 | X509_get_ext_d2i(cert, NID_ct_precert_scts, NULL, NULL);
|
---|
4027 |
|
---|
4028 | scts_extracted =
|
---|
4029 | ct_move_scts(&s->scts, scts, SCT_SOURCE_X509V3_EXTENSION);
|
---|
4030 |
|
---|
4031 | SCT_LIST_free(scts);
|
---|
4032 | }
|
---|
4033 |
|
---|
4034 | return scts_extracted;
|
---|
4035 | }
|
---|
4036 |
|
---|
4037 | /*
|
---|
4038 | * Attempts to find all received SCTs by checking TLS extensions, the OCSP
|
---|
4039 | * response (if it exists) and X509v3 extensions in the certificate.
|
---|
4040 | * Returns NULL if an error occurs.
|
---|
4041 | */
|
---|
4042 | const STACK_OF(SCT) *SSL_get0_peer_scts(SSL *s)
|
---|
4043 | {
|
---|
4044 | if (!s->scts_parsed) {
|
---|
4045 | if (ct_extract_tls_extension_scts(s) < 0 ||
|
---|
4046 | ct_extract_ocsp_response_scts(s) < 0 ||
|
---|
4047 | ct_extract_x509v3_extension_scts(s) < 0)
|
---|
4048 | goto err;
|
---|
4049 |
|
---|
4050 | s->scts_parsed = 1;
|
---|
4051 | }
|
---|
4052 | return s->scts;
|
---|
4053 | err:
|
---|
4054 | return NULL;
|
---|
4055 | }
|
---|
4056 |
|
---|
4057 | static int ct_permissive(const CT_POLICY_EVAL_CTX * ctx,
|
---|
4058 | const STACK_OF(SCT) *scts, void *unused_arg)
|
---|
4059 | {
|
---|
4060 | return 1;
|
---|
4061 | }
|
---|
4062 |
|
---|
4063 | static int ct_strict(const CT_POLICY_EVAL_CTX * ctx,
|
---|
4064 | const STACK_OF(SCT) *scts, void *unused_arg)
|
---|
4065 | {
|
---|
4066 | int count = scts != NULL ? sk_SCT_num(scts) : 0;
|
---|
4067 | int i;
|
---|
4068 |
|
---|
4069 | for (i = 0; i < count; ++i) {
|
---|
4070 | SCT *sct = sk_SCT_value(scts, i);
|
---|
4071 | int status = SCT_get_validation_status(sct);
|
---|
4072 |
|
---|
4073 | if (status == SCT_VALIDATION_STATUS_VALID)
|
---|
4074 | return 1;
|
---|
4075 | }
|
---|
4076 | SSLerr(SSL_F_CT_STRICT, SSL_R_NO_VALID_SCTS);
|
---|
4077 | return 0;
|
---|
4078 | }
|
---|
4079 |
|
---|
4080 | int SSL_set_ct_validation_callback(SSL *s, ssl_ct_validation_cb callback,
|
---|
4081 | void *arg)
|
---|
4082 | {
|
---|
4083 | /*
|
---|
4084 | * Since code exists that uses the custom extension handler for CT, look
|
---|
4085 | * for this and throw an error if they have already registered to use CT.
|
---|
4086 | */
|
---|
4087 | if (callback != NULL && SSL_CTX_has_client_custom_ext(s->ctx,
|
---|
4088 | TLSEXT_TYPE_signed_certificate_timestamp))
|
---|
4089 | {
|
---|
4090 | SSLerr(SSL_F_SSL_SET_CT_VALIDATION_CALLBACK,
|
---|
4091 | SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED);
|
---|
4092 | return 0;
|
---|
4093 | }
|
---|
4094 |
|
---|
4095 | if (callback != NULL) {
|
---|
4096 | /*
|
---|
4097 | * If we are validating CT, then we MUST accept SCTs served via OCSP
|
---|
4098 | */
|
---|
4099 | if (!SSL_set_tlsext_status_type(s, TLSEXT_STATUSTYPE_ocsp))
|
---|
4100 | return 0;
|
---|
4101 | }
|
---|
4102 |
|
---|
4103 | s->ct_validation_callback = callback;
|
---|
4104 | s->ct_validation_callback_arg = arg;
|
---|
4105 |
|
---|
4106 | return 1;
|
---|
4107 | }
|
---|
4108 |
|
---|
4109 | int SSL_CTX_set_ct_validation_callback(SSL_CTX *ctx,
|
---|
4110 | ssl_ct_validation_cb callback, void *arg)
|
---|
4111 | {
|
---|
4112 | /*
|
---|
4113 | * Since code exists that uses the custom extension handler for CT, look for
|
---|
4114 | * this and throw an error if they have already registered to use CT.
|
---|
4115 | */
|
---|
4116 | if (callback != NULL && SSL_CTX_has_client_custom_ext(ctx,
|
---|
4117 | TLSEXT_TYPE_signed_certificate_timestamp))
|
---|
4118 | {
|
---|
4119 | SSLerr(SSL_F_SSL_CTX_SET_CT_VALIDATION_CALLBACK,
|
---|
4120 | SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED);
|
---|
4121 | return 0;
|
---|
4122 | }
|
---|
4123 |
|
---|
4124 | ctx->ct_validation_callback = callback;
|
---|
4125 | ctx->ct_validation_callback_arg = arg;
|
---|
4126 | return 1;
|
---|
4127 | }
|
---|
4128 |
|
---|
4129 | int SSL_ct_is_enabled(const SSL *s)
|
---|
4130 | {
|
---|
4131 | return s->ct_validation_callback != NULL;
|
---|
4132 | }
|
---|
4133 |
|
---|
4134 | int SSL_CTX_ct_is_enabled(const SSL_CTX *ctx)
|
---|
4135 | {
|
---|
4136 | return ctx->ct_validation_callback != NULL;
|
---|
4137 | }
|
---|
4138 |
|
---|
4139 | int ssl_validate_ct(SSL *s)
|
---|
4140 | {
|
---|
4141 | int ret = 0;
|
---|
4142 | X509 *cert = s->session != NULL ? s->session->peer : NULL;
|
---|
4143 | X509 *issuer;
|
---|
4144 | SSL_DANE *dane = &s->dane;
|
---|
4145 | CT_POLICY_EVAL_CTX *ctx = NULL;
|
---|
4146 | const STACK_OF(SCT) *scts;
|
---|
4147 |
|
---|
4148 | /*
|
---|
4149 | * If no callback is set, the peer is anonymous, or its chain is invalid,
|
---|
4150 | * skip SCT validation - just return success. Applications that continue
|
---|
4151 | * handshakes without certificates, with unverified chains, or pinned leaf
|
---|
4152 | * certificates are outside the scope of the WebPKI and CT.
|
---|
4153 | *
|
---|
4154 | * The above exclusions notwithstanding the vast majority of peers will
|
---|
4155 | * have rather ordinary certificate chains validated by typical
|
---|
4156 | * applications that perform certificate verification and therefore will
|
---|
4157 | * process SCTs when enabled.
|
---|
4158 | */
|
---|
4159 | if (s->ct_validation_callback == NULL || cert == NULL ||
|
---|
4160 | s->verify_result != X509_V_OK ||
|
---|
4161 | s->verified_chain == NULL || sk_X509_num(s->verified_chain) <= 1)
|
---|
4162 | return 1;
|
---|
4163 |
|
---|
4164 | /*
|
---|
4165 | * CT not applicable for chains validated via DANE-TA(2) or DANE-EE(3)
|
---|
4166 | * trust-anchors. See https://tools.ietf.org/html/rfc7671#section-4.2
|
---|
4167 | */
|
---|
4168 | if (DANETLS_ENABLED(dane) && dane->mtlsa != NULL) {
|
---|
4169 | switch (dane->mtlsa->usage) {
|
---|
4170 | case DANETLS_USAGE_DANE_TA:
|
---|
4171 | case DANETLS_USAGE_DANE_EE:
|
---|
4172 | return 1;
|
---|
4173 | }
|
---|
4174 | }
|
---|
4175 |
|
---|
4176 | ctx = CT_POLICY_EVAL_CTX_new();
|
---|
4177 | if (ctx == NULL) {
|
---|
4178 | SSLerr(SSL_F_SSL_VALIDATE_CT, ERR_R_MALLOC_FAILURE);
|
---|
4179 | goto end;
|
---|
4180 | }
|
---|
4181 |
|
---|
4182 | issuer = sk_X509_value(s->verified_chain, 1);
|
---|
4183 | CT_POLICY_EVAL_CTX_set1_cert(ctx, cert);
|
---|
4184 | CT_POLICY_EVAL_CTX_set1_issuer(ctx, issuer);
|
---|
4185 | CT_POLICY_EVAL_CTX_set_shared_CTLOG_STORE(ctx, s->ctx->ctlog_store);
|
---|
4186 | CT_POLICY_EVAL_CTX_set_time(ctx, SSL_SESSION_get_time(SSL_get0_session(s)));
|
---|
4187 |
|
---|
4188 | scts = SSL_get0_peer_scts(s);
|
---|
4189 |
|
---|
4190 | /*
|
---|
4191 | * This function returns success (> 0) only when all the SCTs are valid, 0
|
---|
4192 | * when some are invalid, and < 0 on various internal errors (out of
|
---|
4193 | * memory, etc.). Having some, or even all, invalid SCTs is not sufficient
|
---|
4194 | * reason to abort the handshake, that decision is up to the callback.
|
---|
4195 | * Therefore, we error out only in the unexpected case that the return
|
---|
4196 | * value is negative.
|
---|
4197 | *
|
---|
4198 | * XXX: One might well argue that the return value of this function is an
|
---|
4199 | * unfortunate design choice. Its job is only to determine the validation
|
---|
4200 | * status of each of the provided SCTs. So long as it correctly separates
|
---|
4201 | * the wheat from the chaff it should return success. Failure in this case
|
---|
4202 | * ought to correspond to an inability to carry out its duties.
|
---|
4203 | */
|
---|
4204 | if (SCT_LIST_validate(scts, ctx) < 0) {
|
---|
4205 | SSLerr(SSL_F_SSL_VALIDATE_CT, SSL_R_SCT_VERIFICATION_FAILED);
|
---|
4206 | goto end;
|
---|
4207 | }
|
---|
4208 |
|
---|
4209 | ret = s->ct_validation_callback(ctx, scts, s->ct_validation_callback_arg);
|
---|
4210 | if (ret < 0)
|
---|
4211 | ret = 0; /* This function returns 0 on failure */
|
---|
4212 |
|
---|
4213 | end:
|
---|
4214 | CT_POLICY_EVAL_CTX_free(ctx);
|
---|
4215 | /*
|
---|
4216 | * With SSL_VERIFY_NONE the session may be cached and re-used despite a
|
---|
4217 | * failure return code here. Also the application may wish the complete
|
---|
4218 | * the handshake, and then disconnect cleanly at a higher layer, after
|
---|
4219 | * checking the verification status of the completed connection.
|
---|
4220 | *
|
---|
4221 | * We therefore force a certificate verification failure which will be
|
---|
4222 | * visible via SSL_get_verify_result() and cached as part of any resumed
|
---|
4223 | * session.
|
---|
4224 | *
|
---|
4225 | * Note: the permissive callback is for information gathering only, always
|
---|
4226 | * returns success, and does not affect verification status. Only the
|
---|
4227 | * strict callback or a custom application-specified callback can trigger
|
---|
4228 | * connection failure or record a verification error.
|
---|
4229 | */
|
---|
4230 | if (ret <= 0)
|
---|
4231 | s->verify_result = X509_V_ERR_NO_VALID_SCTS;
|
---|
4232 | return ret;
|
---|
4233 | }
|
---|
4234 |
|
---|
4235 | int SSL_CTX_enable_ct(SSL_CTX *ctx, int validation_mode)
|
---|
4236 | {
|
---|
4237 | switch (validation_mode) {
|
---|
4238 | default:
|
---|
4239 | SSLerr(SSL_F_SSL_CTX_ENABLE_CT, SSL_R_INVALID_CT_VALIDATION_TYPE);
|
---|
4240 | return 0;
|
---|
4241 | case SSL_CT_VALIDATION_PERMISSIVE:
|
---|
4242 | return SSL_CTX_set_ct_validation_callback(ctx, ct_permissive, NULL);
|
---|
4243 | case SSL_CT_VALIDATION_STRICT:
|
---|
4244 | return SSL_CTX_set_ct_validation_callback(ctx, ct_strict, NULL);
|
---|
4245 | }
|
---|
4246 | }
|
---|
4247 |
|
---|
4248 | int SSL_enable_ct(SSL *s, int validation_mode)
|
---|
4249 | {
|
---|
4250 | switch (validation_mode) {
|
---|
4251 | default:
|
---|
4252 | SSLerr(SSL_F_SSL_ENABLE_CT, SSL_R_INVALID_CT_VALIDATION_TYPE);
|
---|
4253 | return 0;
|
---|
4254 | case SSL_CT_VALIDATION_PERMISSIVE:
|
---|
4255 | return SSL_set_ct_validation_callback(s, ct_permissive, NULL);
|
---|
4256 | case SSL_CT_VALIDATION_STRICT:
|
---|
4257 | return SSL_set_ct_validation_callback(s, ct_strict, NULL);
|
---|
4258 | }
|
---|
4259 | }
|
---|
4260 |
|
---|
4261 | int SSL_CTX_set_default_ctlog_list_file(SSL_CTX *ctx)
|
---|
4262 | {
|
---|
4263 | return CTLOG_STORE_load_default_file(ctx->ctlog_store);
|
---|
4264 | }
|
---|
4265 |
|
---|
4266 | int SSL_CTX_set_ctlog_list_file(SSL_CTX *ctx, const char *path)
|
---|
4267 | {
|
---|
4268 | return CTLOG_STORE_load_file(ctx->ctlog_store, path);
|
---|
4269 | }
|
---|
4270 |
|
---|
4271 | void SSL_CTX_set0_ctlog_store(SSL_CTX *ctx, CTLOG_STORE * logs)
|
---|
4272 | {
|
---|
4273 | CTLOG_STORE_free(ctx->ctlog_store);
|
---|
4274 | ctx->ctlog_store = logs;
|
---|
4275 | }
|
---|
4276 |
|
---|
4277 | const CTLOG_STORE *SSL_CTX_get0_ctlog_store(const SSL_CTX *ctx)
|
---|
4278 | {
|
---|
4279 | return ctx->ctlog_store;
|
---|
4280 | }
|
---|
4281 |
|
---|
4282 | #endif
|
---|