[331] | 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)
|
---|
| 413 | continue;
|
---|
| 414 | if (rec->usage < usage)
|
---|
| 415 | break;
|
---|
| 416 | if (rec->selector > selector)
|
---|
| 417 | continue;
|
---|
| 418 | if (rec->selector < selector)
|
---|
| 419 | break;
|
---|
| 420 | if (dane->dctx->mdord[rec->mtype] > dane->dctx->mdord[mtype])
|
---|
| 421 | continue;
|
---|
| 422 | break;
|
---|
| 423 | }
|
---|
| 424 |
|
---|
| 425 | if (!sk_danetls_record_insert(dane->trecs, t, i)) {
|
---|
| 426 | tlsa_free(t);
|
---|
| 427 | SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE);
|
---|
| 428 | return -1;
|
---|
| 429 | }
|
---|
| 430 | dane->umask |= DANETLS_USAGE_BIT(usage);
|
---|
| 431 |
|
---|
| 432 | return 1;
|
---|
| 433 | }
|
---|
| 434 |
|
---|
| 435 | static void clear_ciphers(SSL *s)
|
---|
| 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
|
---|