[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 | /* callback functions used by s_client, s_server, and s_time */
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| 11 | #include <stdio.h>
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| 12 | #include <stdlib.h>
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| 13 | #include <string.h> /* for memcpy() and strcmp() */
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| 14 | #define USE_SOCKETS
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| 15 | #include "apps.h"
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| 16 | #undef USE_SOCKETS
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| 17 | #include <openssl/err.h>
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| 18 | #include <openssl/rand.h>
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| 19 | #include <openssl/x509.h>
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| 20 | #include <openssl/ssl.h>
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| 21 | #include <openssl/bn.h>
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| 22 | #ifndef OPENSSL_NO_DH
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| 23 | # include <openssl/dh.h>
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| 24 | #endif
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| 25 | #include "s_apps.h"
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| 26 |
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| 27 | #define COOKIE_SECRET_LENGTH 16
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| 28 |
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| 29 | VERIFY_CB_ARGS verify_args = { 0, 0, X509_V_OK, 0 };
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| 30 |
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| 31 | #ifndef OPENSSL_NO_SOCK
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| 32 | static unsigned char cookie_secret[COOKIE_SECRET_LENGTH];
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| 33 | static int cookie_initialized = 0;
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| 34 | #endif
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| 35 |
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| 36 | static const char *lookup(int val, const STRINT_PAIR* list, const char* def)
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| 37 | {
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| 38 | for ( ; list->name; ++list)
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| 39 | if (list->retval == val)
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| 40 | return list->name;
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| 41 | return def;
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| 42 | }
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| 43 |
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| 44 | int verify_callback(int ok, X509_STORE_CTX *ctx)
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| 45 | {
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| 46 | X509 *err_cert;
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| 47 | int err, depth;
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| 48 |
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| 49 | err_cert = X509_STORE_CTX_get_current_cert(ctx);
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| 50 | err = X509_STORE_CTX_get_error(ctx);
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| 51 | depth = X509_STORE_CTX_get_error_depth(ctx);
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| 52 |
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| 53 | if (!verify_args.quiet || !ok) {
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| 54 | BIO_printf(bio_err, "depth=%d ", depth);
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| 55 | if (err_cert) {
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| 56 | X509_NAME_print_ex(bio_err,
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| 57 | X509_get_subject_name(err_cert),
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| 58 | 0, XN_FLAG_ONELINE);
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| 59 | BIO_puts(bio_err, "\n");
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| 60 | } else
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| 61 | BIO_puts(bio_err, "<no cert>\n");
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| 62 | }
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| 63 | if (!ok) {
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| 64 | BIO_printf(bio_err, "verify error:num=%d:%s\n", err,
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| 65 | X509_verify_cert_error_string(err));
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| 66 | if (verify_args.depth >= depth) {
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| 67 | if (!verify_args.return_error)
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| 68 | ok = 1;
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| 69 | verify_args.error = err;
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| 70 | } else {
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| 71 | ok = 0;
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| 72 | verify_args.error = X509_V_ERR_CERT_CHAIN_TOO_LONG;
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| 73 | }
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| 74 | }
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| 75 | switch (err) {
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| 76 | case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT:
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| 77 | BIO_puts(bio_err, "issuer= ");
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| 78 | X509_NAME_print_ex(bio_err, X509_get_issuer_name(err_cert),
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| 79 | 0, XN_FLAG_ONELINE);
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| 80 | BIO_puts(bio_err, "\n");
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| 81 | break;
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| 82 | case X509_V_ERR_CERT_NOT_YET_VALID:
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| 83 | case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD:
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| 84 | BIO_printf(bio_err, "notBefore=");
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| 85 | ASN1_TIME_print(bio_err, X509_get0_notBefore(err_cert));
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| 86 | BIO_printf(bio_err, "\n");
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| 87 | break;
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| 88 | case X509_V_ERR_CERT_HAS_EXPIRED:
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| 89 | case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD:
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| 90 | BIO_printf(bio_err, "notAfter=");
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| 91 | ASN1_TIME_print(bio_err, X509_get0_notAfter(err_cert));
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| 92 | BIO_printf(bio_err, "\n");
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| 93 | break;
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| 94 | case X509_V_ERR_NO_EXPLICIT_POLICY:
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| 95 | if (!verify_args.quiet)
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| 96 | policies_print(ctx);
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| 97 | break;
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| 98 | }
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| 99 | if (err == X509_V_OK && ok == 2 && !verify_args.quiet)
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| 100 | policies_print(ctx);
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| 101 | if (ok && !verify_args.quiet)
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| 102 | BIO_printf(bio_err, "verify return:%d\n", ok);
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| 103 | return (ok);
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| 104 | }
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| 105 |
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| 106 | int set_cert_stuff(SSL_CTX *ctx, char *cert_file, char *key_file)
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| 107 | {
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| 108 | if (cert_file != NULL) {
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| 109 | if (SSL_CTX_use_certificate_file(ctx, cert_file,
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| 110 | SSL_FILETYPE_PEM) <= 0) {
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| 111 | BIO_printf(bio_err, "unable to get certificate from '%s'\n",
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| 112 | cert_file);
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| 113 | ERR_print_errors(bio_err);
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| 114 | return (0);
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| 115 | }
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| 116 | if (key_file == NULL)
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| 117 | key_file = cert_file;
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| 118 | if (SSL_CTX_use_PrivateKey_file(ctx, key_file, SSL_FILETYPE_PEM) <= 0) {
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| 119 | BIO_printf(bio_err, "unable to get private key from '%s'\n",
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| 120 | key_file);
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| 121 | ERR_print_errors(bio_err);
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| 122 | return (0);
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| 123 | }
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| 124 |
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| 125 | /*
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| 126 | * If we are using DSA, we can copy the parameters from the private
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| 127 | * key
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| 128 | */
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| 129 |
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| 130 | /*
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| 131 | * Now we know that a key and cert have been set against the SSL
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| 132 | * context
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| 133 | */
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| 134 | if (!SSL_CTX_check_private_key(ctx)) {
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| 135 | BIO_printf(bio_err,
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| 136 | "Private key does not match the certificate public key\n");
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| 137 | return (0);
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| 138 | }
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| 139 | }
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| 140 | return (1);
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| 141 | }
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| 142 |
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| 143 | int set_cert_key_stuff(SSL_CTX *ctx, X509 *cert, EVP_PKEY *key,
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| 144 | STACK_OF(X509) *chain, int build_chain)
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| 145 | {
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| 146 | int chflags = chain ? SSL_BUILD_CHAIN_FLAG_CHECK : 0;
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| 147 | if (cert == NULL)
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| 148 | return 1;
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| 149 | if (SSL_CTX_use_certificate(ctx, cert) <= 0) {
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| 150 | BIO_printf(bio_err, "error setting certificate\n");
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| 151 | ERR_print_errors(bio_err);
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| 152 | return 0;
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| 153 | }
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| 154 |
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| 155 | if (SSL_CTX_use_PrivateKey(ctx, key) <= 0) {
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| 156 | BIO_printf(bio_err, "error setting private key\n");
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| 157 | ERR_print_errors(bio_err);
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| 158 | return 0;
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| 159 | }
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| 160 |
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| 161 | /*
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| 162 | * Now we know that a key and cert have been set against the SSL context
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| 163 | */
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| 164 | if (!SSL_CTX_check_private_key(ctx)) {
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| 165 | BIO_printf(bio_err,
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| 166 | "Private key does not match the certificate public key\n");
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| 167 | return 0;
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| 168 | }
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| 169 | if (chain && !SSL_CTX_set1_chain(ctx, chain)) {
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| 170 | BIO_printf(bio_err, "error setting certificate chain\n");
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| 171 | ERR_print_errors(bio_err);
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| 172 | return 0;
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| 173 | }
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| 174 | if (build_chain && !SSL_CTX_build_cert_chain(ctx, chflags)) {
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| 175 | BIO_printf(bio_err, "error building certificate chain\n");
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| 176 | ERR_print_errors(bio_err);
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| 177 | return 0;
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| 178 | }
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| 179 | return 1;
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| 180 | }
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| 181 |
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| 182 | static STRINT_PAIR cert_type_list[] = {
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| 183 | {"RSA sign", TLS_CT_RSA_SIGN},
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| 184 | {"DSA sign", TLS_CT_DSS_SIGN},
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| 185 | {"RSA fixed DH", TLS_CT_RSA_FIXED_DH},
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| 186 | {"DSS fixed DH", TLS_CT_DSS_FIXED_DH},
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| 187 | {"ECDSA sign", TLS_CT_ECDSA_SIGN},
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| 188 | {"RSA fixed ECDH", TLS_CT_RSA_FIXED_ECDH},
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| 189 | {"ECDSA fixed ECDH", TLS_CT_ECDSA_FIXED_ECDH},
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| 190 | {"GOST01 Sign", TLS_CT_GOST01_SIGN},
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| 191 | {NULL}
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| 192 | };
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| 193 |
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| 194 | static void ssl_print_client_cert_types(BIO *bio, SSL *s)
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| 195 | {
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| 196 | const unsigned char *p;
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| 197 | int i;
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| 198 | int cert_type_num = SSL_get0_certificate_types(s, &p);
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| 199 | if (!cert_type_num)
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| 200 | return;
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| 201 | BIO_puts(bio, "Client Certificate Types: ");
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| 202 | for (i = 0; i < cert_type_num; i++) {
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| 203 | unsigned char cert_type = p[i];
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| 204 | const char *cname = lookup((int)cert_type, cert_type_list, NULL);
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| 205 |
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| 206 | if (i)
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| 207 | BIO_puts(bio, ", ");
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| 208 | if (cname)
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| 209 | BIO_puts(bio, cname);
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| 210 | else
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| 211 | BIO_printf(bio, "UNKNOWN (%d),", cert_type);
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| 212 | }
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| 213 | BIO_puts(bio, "\n");
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| 214 | }
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| 215 |
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| 216 | static int do_print_sigalgs(BIO *out, SSL *s, int shared)
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| 217 | {
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| 218 | int i, nsig, client;
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| 219 | client = SSL_is_server(s) ? 0 : 1;
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| 220 | if (shared)
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| 221 | nsig = SSL_get_shared_sigalgs(s, -1, NULL, NULL, NULL, NULL, NULL);
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| 222 | else
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| 223 | nsig = SSL_get_sigalgs(s, -1, NULL, NULL, NULL, NULL, NULL);
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| 224 | if (nsig == 0)
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| 225 | return 1;
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| 226 |
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| 227 | if (shared)
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| 228 | BIO_puts(out, "Shared ");
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| 229 |
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| 230 | if (client)
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| 231 | BIO_puts(out, "Requested ");
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| 232 | BIO_puts(out, "Signature Algorithms: ");
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| 233 | for (i = 0; i < nsig; i++) {
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| 234 | int hash_nid, sign_nid;
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| 235 | unsigned char rhash, rsign;
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| 236 | const char *sstr = NULL;
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| 237 | if (shared)
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| 238 | SSL_get_shared_sigalgs(s, i, &sign_nid, &hash_nid, NULL,
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| 239 | &rsign, &rhash);
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| 240 | else
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| 241 | SSL_get_sigalgs(s, i, &sign_nid, &hash_nid, NULL, &rsign, &rhash);
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| 242 | if (i)
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| 243 | BIO_puts(out, ":");
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| 244 | if (sign_nid == EVP_PKEY_RSA)
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| 245 | sstr = "RSA";
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| 246 | else if (sign_nid == EVP_PKEY_DSA)
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| 247 | sstr = "DSA";
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| 248 | else if (sign_nid == EVP_PKEY_EC)
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| 249 | sstr = "ECDSA";
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| 250 | if (sstr)
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| 251 | BIO_printf(out, "%s+", sstr);
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| 252 | else
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| 253 | BIO_printf(out, "0x%02X+", (int)rsign);
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| 254 | if (hash_nid != NID_undef)
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| 255 | BIO_printf(out, "%s", OBJ_nid2sn(hash_nid));
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| 256 | else
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| 257 | BIO_printf(out, "0x%02X", (int)rhash);
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| 258 | }
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| 259 | BIO_puts(out, "\n");
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| 260 | return 1;
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| 261 | }
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| 262 |
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| 263 | int ssl_print_sigalgs(BIO *out, SSL *s)
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| 264 | {
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| 265 | int mdnid;
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| 266 | if (!SSL_is_server(s))
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| 267 | ssl_print_client_cert_types(out, s);
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| 268 | do_print_sigalgs(out, s, 0);
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| 269 | do_print_sigalgs(out, s, 1);
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| 270 | if (SSL_get_peer_signature_nid(s, &mdnid))
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| 271 | BIO_printf(out, "Peer signing digest: %s\n", OBJ_nid2sn(mdnid));
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| 272 | return 1;
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| 273 | }
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| 274 |
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| 275 | #ifndef OPENSSL_NO_EC
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| 276 | int ssl_print_point_formats(BIO *out, SSL *s)
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| 277 | {
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| 278 | int i, nformats;
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| 279 | const char *pformats;
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| 280 | nformats = SSL_get0_ec_point_formats(s, &pformats);
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| 281 | if (nformats <= 0)
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| 282 | return 1;
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| 283 | BIO_puts(out, "Supported Elliptic Curve Point Formats: ");
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| 284 | for (i = 0; i < nformats; i++, pformats++) {
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| 285 | if (i)
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| 286 | BIO_puts(out, ":");
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| 287 | switch (*pformats) {
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| 288 | case TLSEXT_ECPOINTFORMAT_uncompressed:
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| 289 | BIO_puts(out, "uncompressed");
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| 290 | break;
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| 291 |
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| 292 | case TLSEXT_ECPOINTFORMAT_ansiX962_compressed_prime:
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| 293 | BIO_puts(out, "ansiX962_compressed_prime");
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| 294 | break;
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| 295 |
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| 296 | case TLSEXT_ECPOINTFORMAT_ansiX962_compressed_char2:
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| 297 | BIO_puts(out, "ansiX962_compressed_char2");
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| 298 | break;
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| 299 |
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| 300 | default:
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| 301 | BIO_printf(out, "unknown(%d)", (int)*pformats);
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| 302 | break;
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| 303 |
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| 304 | }
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| 305 | }
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| 306 | BIO_puts(out, "\n");
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| 307 | return 1;
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| 308 | }
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| 309 |
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| 310 | int ssl_print_curves(BIO *out, SSL *s, int noshared)
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| 311 | {
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| 312 | int i, ncurves, *curves, nid;
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| 313 | const char *cname;
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| 314 |
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| 315 | ncurves = SSL_get1_curves(s, NULL);
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| 316 | if (ncurves <= 0)
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| 317 | return 1;
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| 318 | curves = app_malloc(ncurves * sizeof(int), "curves to print");
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| 319 | SSL_get1_curves(s, curves);
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| 320 |
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| 321 | BIO_puts(out, "Supported Elliptic Curves: ");
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| 322 | for (i = 0; i < ncurves; i++) {
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| 323 | if (i)
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| 324 | BIO_puts(out, ":");
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| 325 | nid = curves[i];
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| 326 | /* If unrecognised print out hex version */
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| 327 | if (nid & TLSEXT_nid_unknown)
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| 328 | BIO_printf(out, "0x%04X", nid & 0xFFFF);
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| 329 | else {
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| 330 | /* Use NIST name for curve if it exists */
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| 331 | cname = EC_curve_nid2nist(nid);
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| 332 | if (!cname)
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| 333 | cname = OBJ_nid2sn(nid);
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| 334 | BIO_printf(out, "%s", cname);
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| 335 | }
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| 336 | }
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| 337 | OPENSSL_free(curves);
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| 338 | if (noshared) {
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| 339 | BIO_puts(out, "\n");
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| 340 | return 1;
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| 341 | }
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| 342 | BIO_puts(out, "\nShared Elliptic curves: ");
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| 343 | ncurves = SSL_get_shared_curve(s, -1);
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| 344 | for (i = 0; i < ncurves; i++) {
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| 345 | if (i)
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| 346 | BIO_puts(out, ":");
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| 347 | nid = SSL_get_shared_curve(s, i);
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| 348 | cname = EC_curve_nid2nist(nid);
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| 349 | if (!cname)
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| 350 | cname = OBJ_nid2sn(nid);
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| 351 | BIO_printf(out, "%s", cname);
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| 352 | }
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| 353 | if (ncurves == 0)
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| 354 | BIO_puts(out, "NONE");
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| 355 | BIO_puts(out, "\n");
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| 356 | return 1;
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| 357 | }
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| 358 | #endif
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| 359 | int ssl_print_tmp_key(BIO *out, SSL *s)
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| 360 | {
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| 361 | EVP_PKEY *key;
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| 362 | if (!SSL_get_server_tmp_key(s, &key))
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| 363 | return 1;
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| 364 | BIO_puts(out, "Server Temp Key: ");
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| 365 | switch (EVP_PKEY_id(key)) {
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| 366 | case EVP_PKEY_RSA:
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| 367 | BIO_printf(out, "RSA, %d bits\n", EVP_PKEY_bits(key));
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| 368 | break;
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| 369 |
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| 370 | case EVP_PKEY_DH:
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| 371 | BIO_printf(out, "DH, %d bits\n", EVP_PKEY_bits(key));
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| 372 | break;
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| 373 | #ifndef OPENSSL_NO_EC
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| 374 | case EVP_PKEY_EC:
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| 375 | {
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| 376 | EC_KEY *ec = EVP_PKEY_get1_EC_KEY(key);
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| 377 | int nid;
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| 378 | const char *cname;
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| 379 | nid = EC_GROUP_get_curve_name(EC_KEY_get0_group(ec));
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| 380 | EC_KEY_free(ec);
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| 381 | cname = EC_curve_nid2nist(nid);
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| 382 | if (!cname)
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| 383 | cname = OBJ_nid2sn(nid);
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| 384 | BIO_printf(out, "ECDH, %s, %d bits\n", cname, EVP_PKEY_bits(key));
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| 385 | }
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| 386 | break;
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| 387 | #endif
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| 388 | default:
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| 389 | BIO_printf(out, "%s, %d bits\n", OBJ_nid2sn(EVP_PKEY_id(key)),
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| 390 | EVP_PKEY_bits(key));
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| 391 | }
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| 392 | EVP_PKEY_free(key);
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| 393 | return 1;
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| 394 | }
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| 395 |
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| 396 | long bio_dump_callback(BIO *bio, int cmd, const char *argp,
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| 397 | int argi, long argl, long ret)
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| 398 | {
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| 399 | BIO *out;
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| 400 |
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| 401 | out = (BIO *)BIO_get_callback_arg(bio);
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| 402 | if (out == NULL)
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| 403 | return (ret);
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| 404 |
|
---|
| 405 | if (cmd == (BIO_CB_READ | BIO_CB_RETURN)) {
|
---|
| 406 | BIO_printf(out, "read from %p [%p] (%lu bytes => %ld (0x%lX))\n",
|
---|
| 407 | (void *)bio, (void *)argp, (unsigned long)argi, ret, ret);
|
---|
| 408 | BIO_dump(out, argp, (int)ret);
|
---|
| 409 | return (ret);
|
---|
| 410 | } else if (cmd == (BIO_CB_WRITE | BIO_CB_RETURN)) {
|
---|
| 411 | BIO_printf(out, "write to %p [%p] (%lu bytes => %ld (0x%lX))\n",
|
---|
| 412 | (void *)bio, (void *)argp, (unsigned long)argi, ret, ret);
|
---|
| 413 | BIO_dump(out, argp, (int)ret);
|
---|
| 414 | }
|
---|
| 415 | return (ret);
|
---|
| 416 | }
|
---|
| 417 |
|
---|
| 418 | void apps_ssl_info_callback(const SSL *s, int where, int ret)
|
---|
| 419 | {
|
---|
| 420 | const char *str;
|
---|
| 421 | int w;
|
---|
| 422 |
|
---|
| 423 | w = where & ~SSL_ST_MASK;
|
---|
| 424 |
|
---|
| 425 | if (w & SSL_ST_CONNECT)
|
---|
| 426 | str = "SSL_connect";
|
---|
| 427 | else if (w & SSL_ST_ACCEPT)
|
---|
| 428 | str = "SSL_accept";
|
---|
| 429 | else
|
---|
| 430 | str = "undefined";
|
---|
| 431 |
|
---|
| 432 | if (where & SSL_CB_LOOP) {
|
---|
| 433 | BIO_printf(bio_err, "%s:%s\n", str, SSL_state_string_long(s));
|
---|
| 434 | } else if (where & SSL_CB_ALERT) {
|
---|
| 435 | str = (where & SSL_CB_READ) ? "read" : "write";
|
---|
| 436 | BIO_printf(bio_err, "SSL3 alert %s:%s:%s\n",
|
---|
| 437 | str,
|
---|
| 438 | SSL_alert_type_string_long(ret),
|
---|
| 439 | SSL_alert_desc_string_long(ret));
|
---|
| 440 | } else if (where & SSL_CB_EXIT) {
|
---|
| 441 | if (ret == 0)
|
---|
| 442 | BIO_printf(bio_err, "%s:failed in %s\n",
|
---|
| 443 | str, SSL_state_string_long(s));
|
---|
| 444 | else if (ret < 0) {
|
---|
| 445 | BIO_printf(bio_err, "%s:error in %s\n",
|
---|
| 446 | str, SSL_state_string_long(s));
|
---|
| 447 | }
|
---|
| 448 | }
|
---|
| 449 | }
|
---|
| 450 |
|
---|
| 451 | static STRINT_PAIR ssl_versions[] = {
|
---|
| 452 | {"SSL 3.0", SSL3_VERSION},
|
---|
| 453 | {"TLS 1.0", TLS1_VERSION},
|
---|
| 454 | {"TLS 1.1", TLS1_1_VERSION},
|
---|
| 455 | {"TLS 1.2", TLS1_2_VERSION},
|
---|
| 456 | {"DTLS 1.0", DTLS1_VERSION},
|
---|
| 457 | {"DTLS 1.0 (bad)", DTLS1_BAD_VER},
|
---|
| 458 | {NULL}
|
---|
| 459 | };
|
---|
| 460 | static STRINT_PAIR alert_types[] = {
|
---|
| 461 | {" close_notify", 0},
|
---|
| 462 | {" unexpected_message", 10},
|
---|
| 463 | {" bad_record_mac", 20},
|
---|
| 464 | {" decryption_failed", 21},
|
---|
| 465 | {" record_overflow", 22},
|
---|
| 466 | {" decompression_failure", 30},
|
---|
| 467 | {" handshake_failure", 40},
|
---|
| 468 | {" bad_certificate", 42},
|
---|
| 469 | {" unsupported_certificate", 43},
|
---|
| 470 | {" certificate_revoked", 44},
|
---|
| 471 | {" certificate_expired", 45},
|
---|
| 472 | {" certificate_unknown", 46},
|
---|
| 473 | {" illegal_parameter", 47},
|
---|
| 474 | {" unknown_ca", 48},
|
---|
| 475 | {" access_denied", 49},
|
---|
| 476 | {" decode_error", 50},
|
---|
| 477 | {" decrypt_error", 51},
|
---|
| 478 | {" export_restriction", 60},
|
---|
| 479 | {" protocol_version", 70},
|
---|
| 480 | {" insufficient_security", 71},
|
---|
| 481 | {" internal_error", 80},
|
---|
| 482 | {" user_canceled", 90},
|
---|
| 483 | {" no_renegotiation", 100},
|
---|
| 484 | {" unsupported_extension", 110},
|
---|
| 485 | {" certificate_unobtainable", 111},
|
---|
| 486 | {" unrecognized_name", 112},
|
---|
| 487 | {" bad_certificate_status_response", 113},
|
---|
| 488 | {" bad_certificate_hash_value", 114},
|
---|
| 489 | {" unknown_psk_identity", 115},
|
---|
| 490 | {NULL}
|
---|
| 491 | };
|
---|
| 492 |
|
---|
| 493 | static STRINT_PAIR handshakes[] = {
|
---|
| 494 | {", HelloRequest", 0},
|
---|
| 495 | {", ClientHello", 1},
|
---|
| 496 | {", ServerHello", 2},
|
---|
| 497 | {", HelloVerifyRequest", 3},
|
---|
| 498 | {", NewSessionTicket", 4},
|
---|
| 499 | {", Certificate", 11},
|
---|
| 500 | {", ServerKeyExchange", 12},
|
---|
| 501 | {", CertificateRequest", 13},
|
---|
| 502 | {", ServerHelloDone", 14},
|
---|
| 503 | {", CertificateVerify", 15},
|
---|
| 504 | {", ClientKeyExchange", 16},
|
---|
| 505 | {", Finished", 20},
|
---|
| 506 | {", CertificateUrl", 21},
|
---|
| 507 | {", CertificateStatus", 22},
|
---|
| 508 | {", SupplementalData", 23},
|
---|
| 509 | {NULL}
|
---|
| 510 | };
|
---|
| 511 |
|
---|
| 512 | void msg_cb(int write_p, int version, int content_type, const void *buf,
|
---|
| 513 | size_t len, SSL *ssl, void *arg)
|
---|
| 514 | {
|
---|
| 515 | BIO *bio = arg;
|
---|
| 516 | const char *str_write_p = write_p ? ">>>" : "<<<";
|
---|
| 517 | const char *str_version = lookup(version, ssl_versions, "???");
|
---|
| 518 | const char *str_content_type = "", *str_details1 = "", *str_details2 = "";
|
---|
| 519 | const unsigned char* bp = buf;
|
---|
| 520 |
|
---|
| 521 | if (version == SSL3_VERSION ||
|
---|
| 522 | version == TLS1_VERSION ||
|
---|
| 523 | version == TLS1_1_VERSION ||
|
---|
| 524 | version == TLS1_2_VERSION ||
|
---|
| 525 | version == DTLS1_VERSION || version == DTLS1_BAD_VER) {
|
---|
| 526 | switch (content_type) {
|
---|
| 527 | case 20:
|
---|
| 528 | str_content_type = "ChangeCipherSpec";
|
---|
| 529 | break;
|
---|
| 530 | case 21:
|
---|
| 531 | str_content_type = "Alert";
|
---|
| 532 | str_details1 = ", ???";
|
---|
| 533 | if (len == 2) {
|
---|
| 534 | switch (bp[0]) {
|
---|
| 535 | case 1:
|
---|
| 536 | str_details1 = ", warning";
|
---|
| 537 | break;
|
---|
| 538 | case 2:
|
---|
| 539 | str_details1 = ", fatal";
|
---|
| 540 | break;
|
---|
| 541 | }
|
---|
| 542 | str_details2 = lookup((int)bp[1], alert_types, " ???");
|
---|
| 543 | }
|
---|
| 544 | break;
|
---|
| 545 | case 22:
|
---|
| 546 | str_content_type = "Handshake";
|
---|
| 547 | str_details1 = "???";
|
---|
| 548 | if (len > 0)
|
---|
| 549 | str_details1 = lookup((int)bp[0], handshakes, "???");
|
---|
| 550 | break;
|
---|
| 551 | case 23:
|
---|
| 552 | str_content_type = "ApplicationData";
|
---|
| 553 | break;
|
---|
| 554 | #ifndef OPENSSL_NO_HEARTBEATS
|
---|
| 555 | case 24:
|
---|
| 556 | str_details1 = ", Heartbeat";
|
---|
| 557 |
|
---|
| 558 | if (len > 0) {
|
---|
| 559 | switch (bp[0]) {
|
---|
| 560 | case 1:
|
---|
| 561 | str_details1 = ", HeartbeatRequest";
|
---|
| 562 | break;
|
---|
| 563 | case 2:
|
---|
| 564 | str_details1 = ", HeartbeatResponse";
|
---|
| 565 | break;
|
---|
| 566 | }
|
---|
| 567 | }
|
---|
| 568 | break;
|
---|
| 569 | #endif
|
---|
| 570 | }
|
---|
| 571 | }
|
---|
| 572 |
|
---|
| 573 | BIO_printf(bio, "%s %s%s [length %04lx]%s%s\n", str_write_p, str_version,
|
---|
| 574 | str_content_type, (unsigned long)len, str_details1,
|
---|
| 575 | str_details2);
|
---|
| 576 |
|
---|
| 577 | if (len > 0) {
|
---|
| 578 | size_t num, i;
|
---|
| 579 |
|
---|
| 580 | BIO_printf(bio, " ");
|
---|
| 581 | num = len;
|
---|
| 582 | for (i = 0; i < num; i++) {
|
---|
| 583 | if (i % 16 == 0 && i > 0)
|
---|
| 584 | BIO_printf(bio, "\n ");
|
---|
| 585 | BIO_printf(bio, " %02x", ((const unsigned char *)buf)[i]);
|
---|
| 586 | }
|
---|
| 587 | if (i < len)
|
---|
| 588 | BIO_printf(bio, " ...");
|
---|
| 589 | BIO_printf(bio, "\n");
|
---|
| 590 | }
|
---|
| 591 | (void)BIO_flush(bio);
|
---|
| 592 | }
|
---|
| 593 |
|
---|
| 594 | static STRINT_PAIR tlsext_types[] = {
|
---|
| 595 | {"server name", TLSEXT_TYPE_server_name},
|
---|
| 596 | {"max fragment length", TLSEXT_TYPE_max_fragment_length},
|
---|
| 597 | {"client certificate URL", TLSEXT_TYPE_client_certificate_url},
|
---|
| 598 | {"trusted CA keys", TLSEXT_TYPE_trusted_ca_keys},
|
---|
| 599 | {"truncated HMAC", TLSEXT_TYPE_truncated_hmac},
|
---|
| 600 | {"status request", TLSEXT_TYPE_status_request},
|
---|
| 601 | {"user mapping", TLSEXT_TYPE_user_mapping},
|
---|
| 602 | {"client authz", TLSEXT_TYPE_client_authz},
|
---|
| 603 | {"server authz", TLSEXT_TYPE_server_authz},
|
---|
| 604 | {"cert type", TLSEXT_TYPE_cert_type},
|
---|
| 605 | {"elliptic curves", TLSEXT_TYPE_elliptic_curves},
|
---|
| 606 | {"EC point formats", TLSEXT_TYPE_ec_point_formats},
|
---|
| 607 | {"SRP", TLSEXT_TYPE_srp},
|
---|
| 608 | {"signature algorithms", TLSEXT_TYPE_signature_algorithms},
|
---|
| 609 | {"use SRTP", TLSEXT_TYPE_use_srtp},
|
---|
| 610 | {"heartbeat", TLSEXT_TYPE_heartbeat},
|
---|
| 611 | {"session ticket", TLSEXT_TYPE_session_ticket},
|
---|
| 612 | {"renegotiation info", TLSEXT_TYPE_renegotiate},
|
---|
| 613 | {"signed certificate timestamps", TLSEXT_TYPE_signed_certificate_timestamp},
|
---|
| 614 | {"TLS padding", TLSEXT_TYPE_padding},
|
---|
| 615 | #ifdef TLSEXT_TYPE_next_proto_neg
|
---|
| 616 | {"next protocol", TLSEXT_TYPE_next_proto_neg},
|
---|
| 617 | #endif
|
---|
| 618 | #ifdef TLSEXT_TYPE_encrypt_then_mac
|
---|
| 619 | {"encrypt-then-mac", TLSEXT_TYPE_encrypt_then_mac},
|
---|
| 620 | #endif
|
---|
| 621 | #ifdef TLSEXT_TYPE_application_layer_protocol_negotiation
|
---|
| 622 | {"application layer protocol negotiation",
|
---|
| 623 | TLSEXT_TYPE_application_layer_protocol_negotiation},
|
---|
| 624 | #endif
|
---|
| 625 | #ifdef TLSEXT_TYPE_extended_master_secret
|
---|
| 626 | {"extended master secret", TLSEXT_TYPE_extended_master_secret},
|
---|
| 627 | #endif
|
---|
| 628 | {NULL}
|
---|
| 629 | };
|
---|
| 630 |
|
---|
| 631 | void tlsext_cb(SSL *s, int client_server, int type,
|
---|
| 632 | const unsigned char *data, int len, void *arg)
|
---|
| 633 | {
|
---|
| 634 | BIO *bio = arg;
|
---|
| 635 | const char *extname = lookup(type, tlsext_types, "unknown");
|
---|
| 636 |
|
---|
| 637 | BIO_printf(bio, "TLS %s extension \"%s\" (id=%d), len=%d\n",
|
---|
| 638 | client_server ? "server" : "client", extname, type, len);
|
---|
| 639 | BIO_dump(bio, (const char *)data, len);
|
---|
| 640 | (void)BIO_flush(bio);
|
---|
| 641 | }
|
---|
| 642 |
|
---|
| 643 | #ifndef OPENSSL_NO_SOCK
|
---|
| 644 | int generate_cookie_callback(SSL *ssl, unsigned char *cookie,
|
---|
| 645 | unsigned int *cookie_len)
|
---|
| 646 | {
|
---|
| 647 | unsigned char *buffer;
|
---|
| 648 | size_t length;
|
---|
| 649 | unsigned short port;
|
---|
| 650 | BIO_ADDR *peer = NULL;
|
---|
| 651 |
|
---|
| 652 | /* Initialize a random secret */
|
---|
| 653 | if (!cookie_initialized) {
|
---|
| 654 | if (RAND_bytes(cookie_secret, COOKIE_SECRET_LENGTH) <= 0) {
|
---|
| 655 | BIO_printf(bio_err, "error setting random cookie secret\n");
|
---|
| 656 | return 0;
|
---|
| 657 | }
|
---|
| 658 | cookie_initialized = 1;
|
---|
| 659 | }
|
---|
| 660 |
|
---|
| 661 | peer = BIO_ADDR_new();
|
---|
| 662 | if (peer == NULL) {
|
---|
| 663 | BIO_printf(bio_err, "memory full\n");
|
---|
| 664 | return 0;
|
---|
| 665 | }
|
---|
| 666 |
|
---|
| 667 | /* Read peer information */
|
---|
| 668 | (void)BIO_dgram_get_peer(SSL_get_rbio(ssl), peer);
|
---|
| 669 |
|
---|
| 670 | /* Create buffer with peer's address and port */
|
---|
| 671 | BIO_ADDR_rawaddress(peer, NULL, &length);
|
---|
| 672 | OPENSSL_assert(length != 0);
|
---|
| 673 | port = BIO_ADDR_rawport(peer);
|
---|
| 674 | length += sizeof(port);
|
---|
| 675 | buffer = app_malloc(length, "cookie generate buffer");
|
---|
| 676 |
|
---|
| 677 | memcpy(buffer, &port, sizeof(port));
|
---|
| 678 | BIO_ADDR_rawaddress(peer, buffer + sizeof(port), NULL);
|
---|
| 679 |
|
---|
| 680 | /* Calculate HMAC of buffer using the secret */
|
---|
| 681 | HMAC(EVP_sha1(), cookie_secret, COOKIE_SECRET_LENGTH,
|
---|
| 682 | buffer, length, cookie, cookie_len);
|
---|
| 683 |
|
---|
| 684 | OPENSSL_free(buffer);
|
---|
| 685 | BIO_ADDR_free(peer);
|
---|
| 686 |
|
---|
| 687 | return 1;
|
---|
| 688 | }
|
---|
| 689 |
|
---|
| 690 | int verify_cookie_callback(SSL *ssl, const unsigned char *cookie,
|
---|
| 691 | unsigned int cookie_len)
|
---|
| 692 | {
|
---|
| 693 | unsigned char result[EVP_MAX_MD_SIZE];
|
---|
| 694 | unsigned int resultlength;
|
---|
| 695 |
|
---|
| 696 | /* Note: we check cookie_initialized because if it's not,
|
---|
| 697 | * it cannot be valid */
|
---|
| 698 | if (cookie_initialized
|
---|
| 699 | && generate_cookie_callback(ssl, result, &resultlength)
|
---|
| 700 | && cookie_len == resultlength
|
---|
| 701 | && memcmp(result, cookie, resultlength) == 0)
|
---|
| 702 | return 1;
|
---|
| 703 |
|
---|
| 704 | return 0;
|
---|
| 705 | }
|
---|
| 706 | #endif
|
---|
| 707 |
|
---|
| 708 | /*
|
---|
| 709 | * Example of extended certificate handling. Where the standard support of
|
---|
| 710 | * one certificate per algorithm is not sufficient an application can decide
|
---|
| 711 | * which certificate(s) to use at runtime based on whatever criteria it deems
|
---|
| 712 | * appropriate.
|
---|
| 713 | */
|
---|
| 714 |
|
---|
| 715 | /* Linked list of certificates, keys and chains */
|
---|
| 716 | struct ssl_excert_st {
|
---|
| 717 | int certform;
|
---|
| 718 | const char *certfile;
|
---|
| 719 | int keyform;
|
---|
| 720 | const char *keyfile;
|
---|
| 721 | const char *chainfile;
|
---|
| 722 | X509 *cert;
|
---|
| 723 | EVP_PKEY *key;
|
---|
| 724 | STACK_OF(X509) *chain;
|
---|
| 725 | int build_chain;
|
---|
| 726 | struct ssl_excert_st *next, *prev;
|
---|
| 727 | };
|
---|
| 728 |
|
---|
| 729 | static STRINT_PAIR chain_flags[] = {
|
---|
| 730 | {"Overall Validity", CERT_PKEY_VALID},
|
---|
| 731 | {"Sign with EE key", CERT_PKEY_SIGN},
|
---|
| 732 | {"EE signature", CERT_PKEY_EE_SIGNATURE},
|
---|
| 733 | {"CA signature", CERT_PKEY_CA_SIGNATURE},
|
---|
| 734 | {"EE key parameters", CERT_PKEY_EE_PARAM},
|
---|
| 735 | {"CA key parameters", CERT_PKEY_CA_PARAM},
|
---|
| 736 | {"Explicitly sign with EE key", CERT_PKEY_EXPLICIT_SIGN},
|
---|
| 737 | {"Issuer Name", CERT_PKEY_ISSUER_NAME},
|
---|
| 738 | {"Certificate Type", CERT_PKEY_CERT_TYPE},
|
---|
| 739 | {NULL}
|
---|
| 740 | };
|
---|
| 741 |
|
---|
| 742 | static void print_chain_flags(SSL *s, int flags)
|
---|
| 743 | {
|
---|
| 744 | STRINT_PAIR *pp;
|
---|
| 745 |
|
---|
| 746 | for (pp = chain_flags; pp->name; ++pp)
|
---|
| 747 | BIO_printf(bio_err, "\t%s: %s\n",
|
---|
| 748 | pp->name,
|
---|
| 749 | (flags & pp->retval) ? "OK" : "NOT OK");
|
---|
| 750 | BIO_printf(bio_err, "\tSuite B: ");
|
---|
| 751 | if (SSL_set_cert_flags(s, 0) & SSL_CERT_FLAG_SUITEB_128_LOS)
|
---|
| 752 | BIO_puts(bio_err, flags & CERT_PKEY_SUITEB ? "OK\n" : "NOT OK\n");
|
---|
| 753 | else
|
---|
| 754 | BIO_printf(bio_err, "not tested\n");
|
---|
| 755 | }
|
---|
| 756 |
|
---|
| 757 | /*
|
---|
| 758 | * Very basic selection callback: just use any certificate chain reported as
|
---|
| 759 | * valid. More sophisticated could prioritise according to local policy.
|
---|
| 760 | */
|
---|
| 761 | static int set_cert_cb(SSL *ssl, void *arg)
|
---|
| 762 | {
|
---|
| 763 | int i, rv;
|
---|
| 764 | SSL_EXCERT *exc = arg;
|
---|
| 765 | #ifdef CERT_CB_TEST_RETRY
|
---|
| 766 | static int retry_cnt;
|
---|
| 767 | if (retry_cnt < 5) {
|
---|
| 768 | retry_cnt++;
|
---|
| 769 | BIO_printf(bio_err,
|
---|
| 770 | "Certificate callback retry test: count %d\n",
|
---|
| 771 | retry_cnt);
|
---|
| 772 | return -1;
|
---|
| 773 | }
|
---|
| 774 | #endif
|
---|
| 775 | SSL_certs_clear(ssl);
|
---|
| 776 |
|
---|
| 777 | if (!exc)
|
---|
| 778 | return 1;
|
---|
| 779 |
|
---|
| 780 | /*
|
---|
| 781 | * Go to end of list and traverse backwards since we prepend newer
|
---|
| 782 | * entries this retains the original order.
|
---|
| 783 | */
|
---|
| 784 | while (exc->next)
|
---|
| 785 | exc = exc->next;
|
---|
| 786 |
|
---|
| 787 | i = 0;
|
---|
| 788 |
|
---|
| 789 | while (exc) {
|
---|
| 790 | i++;
|
---|
| 791 | rv = SSL_check_chain(ssl, exc->cert, exc->key, exc->chain);
|
---|
| 792 | BIO_printf(bio_err, "Checking cert chain %d:\nSubject: ", i);
|
---|
| 793 | X509_NAME_print_ex(bio_err, X509_get_subject_name(exc->cert), 0,
|
---|
| 794 | XN_FLAG_ONELINE);
|
---|
| 795 | BIO_puts(bio_err, "\n");
|
---|
| 796 | print_chain_flags(ssl, rv);
|
---|
| 797 | if (rv & CERT_PKEY_VALID) {
|
---|
| 798 | if (!SSL_use_certificate(ssl, exc->cert)
|
---|
| 799 | || !SSL_use_PrivateKey(ssl, exc->key)) {
|
---|
| 800 | return 0;
|
---|
| 801 | }
|
---|
| 802 | /*
|
---|
| 803 | * NB: we wouldn't normally do this as it is not efficient
|
---|
| 804 | * building chains on each connection better to cache the chain
|
---|
| 805 | * in advance.
|
---|
| 806 | */
|
---|
| 807 | if (exc->build_chain) {
|
---|
| 808 | if (!SSL_build_cert_chain(ssl, 0))
|
---|
| 809 | return 0;
|
---|
| 810 | } else if (exc->chain)
|
---|
| 811 | SSL_set1_chain(ssl, exc->chain);
|
---|
| 812 | }
|
---|
| 813 | exc = exc->prev;
|
---|
| 814 | }
|
---|
| 815 | return 1;
|
---|
| 816 | }
|
---|
| 817 |
|
---|
| 818 | void ssl_ctx_set_excert(SSL_CTX *ctx, SSL_EXCERT *exc)
|
---|
| 819 | {
|
---|
| 820 | SSL_CTX_set_cert_cb(ctx, set_cert_cb, exc);
|
---|
| 821 | }
|
---|
| 822 |
|
---|
| 823 | static int ssl_excert_prepend(SSL_EXCERT **pexc)
|
---|
| 824 | {
|
---|
| 825 | SSL_EXCERT *exc = app_malloc(sizeof(*exc), "prepend cert");
|
---|
| 826 |
|
---|
| 827 | memset(exc, 0, sizeof(*exc));
|
---|
| 828 |
|
---|
| 829 | exc->next = *pexc;
|
---|
| 830 | *pexc = exc;
|
---|
| 831 |
|
---|
| 832 | if (exc->next) {
|
---|
| 833 | exc->certform = exc->next->certform;
|
---|
| 834 | exc->keyform = exc->next->keyform;
|
---|
| 835 | exc->next->prev = exc;
|
---|
| 836 | } else {
|
---|
| 837 | exc->certform = FORMAT_PEM;
|
---|
| 838 | exc->keyform = FORMAT_PEM;
|
---|
| 839 | }
|
---|
| 840 | return 1;
|
---|
| 841 |
|
---|
| 842 | }
|
---|
| 843 |
|
---|
| 844 | void ssl_excert_free(SSL_EXCERT *exc)
|
---|
| 845 | {
|
---|
| 846 | SSL_EXCERT *curr;
|
---|
| 847 |
|
---|
| 848 | if (!exc)
|
---|
| 849 | return;
|
---|
| 850 | while (exc) {
|
---|
| 851 | X509_free(exc->cert);
|
---|
| 852 | EVP_PKEY_free(exc->key);
|
---|
| 853 | sk_X509_pop_free(exc->chain, X509_free);
|
---|
| 854 | curr = exc;
|
---|
| 855 | exc = exc->next;
|
---|
| 856 | OPENSSL_free(curr);
|
---|
| 857 | }
|
---|
| 858 | }
|
---|
| 859 |
|
---|
| 860 | int load_excert(SSL_EXCERT **pexc)
|
---|
| 861 | {
|
---|
| 862 | SSL_EXCERT *exc = *pexc;
|
---|
| 863 | if (!exc)
|
---|
| 864 | return 1;
|
---|
| 865 | /* If nothing in list, free and set to NULL */
|
---|
| 866 | if (!exc->certfile && !exc->next) {
|
---|
| 867 | ssl_excert_free(exc);
|
---|
| 868 | *pexc = NULL;
|
---|
| 869 | return 1;
|
---|
| 870 | }
|
---|
| 871 | for (; exc; exc = exc->next) {
|
---|
| 872 | if (!exc->certfile) {
|
---|
| 873 | BIO_printf(bio_err, "Missing filename\n");
|
---|
| 874 | return 0;
|
---|
| 875 | }
|
---|
| 876 | exc->cert = load_cert(exc->certfile, exc->certform,
|
---|
| 877 | "Server Certificate");
|
---|
| 878 | if (!exc->cert)
|
---|
| 879 | return 0;
|
---|
| 880 | if (exc->keyfile) {
|
---|
| 881 | exc->key = load_key(exc->keyfile, exc->keyform,
|
---|
| 882 | 0, NULL, NULL, "Server Key");
|
---|
| 883 | } else {
|
---|
| 884 | exc->key = load_key(exc->certfile, exc->certform,
|
---|
| 885 | 0, NULL, NULL, "Server Key");
|
---|
| 886 | }
|
---|
| 887 | if (!exc->key)
|
---|
| 888 | return 0;
|
---|
| 889 | if (exc->chainfile) {
|
---|
| 890 | if (!load_certs(exc->chainfile, &exc->chain, FORMAT_PEM, NULL,
|
---|
| 891 | "Server Chain"))
|
---|
| 892 | return 0;
|
---|
| 893 | }
|
---|
| 894 | }
|
---|
| 895 | return 1;
|
---|
| 896 | }
|
---|
| 897 |
|
---|
| 898 | enum range { OPT_X_ENUM };
|
---|
| 899 |
|
---|
| 900 | int args_excert(int opt, SSL_EXCERT **pexc)
|
---|
| 901 | {
|
---|
| 902 | SSL_EXCERT *exc = *pexc;
|
---|
| 903 |
|
---|
| 904 | assert(opt > OPT_X__FIRST);
|
---|
| 905 | assert(opt < OPT_X__LAST);
|
---|
| 906 |
|
---|
| 907 | if (exc == NULL) {
|
---|
| 908 | if (!ssl_excert_prepend(&exc)) {
|
---|
| 909 | BIO_printf(bio_err, " %s: Error initialising xcert\n",
|
---|
| 910 | opt_getprog());
|
---|
| 911 | goto err;
|
---|
| 912 | }
|
---|
| 913 | *pexc = exc;
|
---|
| 914 | }
|
---|
| 915 |
|
---|
| 916 | switch ((enum range)opt) {
|
---|
| 917 | case OPT_X__FIRST:
|
---|
| 918 | case OPT_X__LAST:
|
---|
| 919 | return 0;
|
---|
| 920 | case OPT_X_CERT:
|
---|
| 921 | if (exc->certfile && !ssl_excert_prepend(&exc)) {
|
---|
| 922 | BIO_printf(bio_err, "%s: Error adding xcert\n", opt_getprog());
|
---|
| 923 | goto err;
|
---|
| 924 | }
|
---|
| 925 | *pexc = exc;
|
---|
| 926 | exc->certfile = opt_arg();
|
---|
| 927 | break;
|
---|
| 928 | case OPT_X_KEY:
|
---|
| 929 | if (exc->keyfile) {
|
---|
| 930 | BIO_printf(bio_err, "%s: Key already specified\n", opt_getprog());
|
---|
| 931 | goto err;
|
---|
| 932 | }
|
---|
| 933 | exc->keyfile = opt_arg();
|
---|
| 934 | break;
|
---|
| 935 | case OPT_X_CHAIN:
|
---|
| 936 | if (exc->chainfile) {
|
---|
| 937 | BIO_printf(bio_err, "%s: Chain already specified\n",
|
---|
| 938 | opt_getprog());
|
---|
| 939 | goto err;
|
---|
| 940 | }
|
---|
| 941 | exc->chainfile = opt_arg();
|
---|
| 942 | break;
|
---|
| 943 | case OPT_X_CHAIN_BUILD:
|
---|
| 944 | exc->build_chain = 1;
|
---|
| 945 | break;
|
---|
| 946 | case OPT_X_CERTFORM:
|
---|
| 947 | if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &exc->certform))
|
---|
| 948 | return 0;
|
---|
| 949 | break;
|
---|
| 950 | case OPT_X_KEYFORM:
|
---|
| 951 | if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &exc->keyform))
|
---|
| 952 | return 0;
|
---|
| 953 | break;
|
---|
| 954 | }
|
---|
| 955 | return 1;
|
---|
| 956 |
|
---|
| 957 | err:
|
---|
| 958 | ERR_print_errors(bio_err);
|
---|
| 959 | ssl_excert_free(exc);
|
---|
| 960 | *pexc = NULL;
|
---|
| 961 | return 0;
|
---|
| 962 | }
|
---|
| 963 |
|
---|
| 964 | static void print_raw_cipherlist(SSL *s)
|
---|
| 965 | {
|
---|
| 966 | const unsigned char *rlist;
|
---|
| 967 | static const unsigned char scsv_id[] = { 0, 0xFF };
|
---|
| 968 | size_t i, rlistlen, num;
|
---|
| 969 | if (!SSL_is_server(s))
|
---|
| 970 | return;
|
---|
| 971 | num = SSL_get0_raw_cipherlist(s, NULL);
|
---|
| 972 | OPENSSL_assert(num == 2);
|
---|
| 973 | rlistlen = SSL_get0_raw_cipherlist(s, &rlist);
|
---|
| 974 | BIO_puts(bio_err, "Client cipher list: ");
|
---|
| 975 | for (i = 0; i < rlistlen; i += num, rlist += num) {
|
---|
| 976 | const SSL_CIPHER *c = SSL_CIPHER_find(s, rlist);
|
---|
| 977 | if (i)
|
---|
| 978 | BIO_puts(bio_err, ":");
|
---|
| 979 | if (c)
|
---|
| 980 | BIO_puts(bio_err, SSL_CIPHER_get_name(c));
|
---|
| 981 | else if (!memcmp(rlist, scsv_id, num))
|
---|
| 982 | BIO_puts(bio_err, "SCSV");
|
---|
| 983 | else {
|
---|
| 984 | size_t j;
|
---|
| 985 | BIO_puts(bio_err, "0x");
|
---|
| 986 | for (j = 0; j < num; j++)
|
---|
| 987 | BIO_printf(bio_err, "%02X", rlist[j]);
|
---|
| 988 | }
|
---|
| 989 | }
|
---|
| 990 | BIO_puts(bio_err, "\n");
|
---|
| 991 | }
|
---|
| 992 |
|
---|
| 993 | /*
|
---|
| 994 | * Hex encoder for TLSA RRdata, not ':' delimited.
|
---|
| 995 | */
|
---|
| 996 | static char *hexencode(const unsigned char *data, size_t len)
|
---|
| 997 | {
|
---|
| 998 | static const char *hex = "0123456789abcdef";
|
---|
| 999 | char *out;
|
---|
| 1000 | char *cp;
|
---|
| 1001 | size_t outlen = 2 * len + 1;
|
---|
| 1002 | int ilen = (int) outlen;
|
---|
| 1003 |
|
---|
| 1004 | if (outlen < len || ilen < 0 || outlen != (size_t)ilen) {
|
---|
| 1005 | BIO_printf(bio_err, "%s: %" PRIu64 "-byte buffer too large to hexencode\n",
|
---|
| 1006 | opt_getprog(), (uint64_t)len);
|
---|
| 1007 | exit(1);
|
---|
| 1008 | }
|
---|
| 1009 | cp = out = app_malloc(ilen, "TLSA hex data buffer");
|
---|
| 1010 |
|
---|
| 1011 | while (len-- > 0) {
|
---|
| 1012 | *cp++ = hex[(*data >> 4) & 0x0f];
|
---|
| 1013 | *cp++ = hex[*data++ & 0x0f];
|
---|
| 1014 | }
|
---|
| 1015 | *cp = '\0';
|
---|
| 1016 | return out;
|
---|
| 1017 | }
|
---|
| 1018 |
|
---|
| 1019 | void print_verify_detail(SSL *s, BIO *bio)
|
---|
| 1020 | {
|
---|
| 1021 | int mdpth;
|
---|
| 1022 | EVP_PKEY *mspki;
|
---|
| 1023 | long verify_err = SSL_get_verify_result(s);
|
---|
| 1024 |
|
---|
| 1025 | if (verify_err == X509_V_OK) {
|
---|
| 1026 | const char *peername = SSL_get0_peername(s);
|
---|
| 1027 |
|
---|
| 1028 | BIO_printf(bio, "Verification: OK\n");
|
---|
| 1029 | if (peername != NULL)
|
---|
| 1030 | BIO_printf(bio, "Verified peername: %s\n", peername);
|
---|
| 1031 | } else {
|
---|
| 1032 | const char *reason = X509_verify_cert_error_string(verify_err);
|
---|
| 1033 |
|
---|
| 1034 | BIO_printf(bio, "Verification error: %s\n", reason);
|
---|
| 1035 | }
|
---|
| 1036 |
|
---|
| 1037 | if ((mdpth = SSL_get0_dane_authority(s, NULL, &mspki)) >= 0) {
|
---|
| 1038 | uint8_t usage, selector, mtype;
|
---|
| 1039 | const unsigned char *data = NULL;
|
---|
| 1040 | size_t dlen = 0;
|
---|
| 1041 | char *hexdata;
|
---|
| 1042 |
|
---|
| 1043 | mdpth = SSL_get0_dane_tlsa(s, &usage, &selector, &mtype, &data, &dlen);
|
---|
| 1044 |
|
---|
| 1045 | /*
|
---|
| 1046 | * The TLSA data field can be quite long when it is a certificate,
|
---|
| 1047 | * public key or even a SHA2-512 digest. Because the initial octets of
|
---|
| 1048 | * ASN.1 certificates and public keys contain mostly boilerplate OIDs
|
---|
| 1049 | * and lengths, we show the last 12 bytes of the data instead, as these
|
---|
| 1050 | * are more likely to distinguish distinct TLSA records.
|
---|
| 1051 | */
|
---|
| 1052 | #define TLSA_TAIL_SIZE 12
|
---|
| 1053 | if (dlen > TLSA_TAIL_SIZE)
|
---|
| 1054 | hexdata = hexencode(data + dlen - TLSA_TAIL_SIZE, TLSA_TAIL_SIZE);
|
---|
| 1055 | else
|
---|
| 1056 | hexdata = hexencode(data, dlen);
|
---|
| 1057 | BIO_printf(bio, "DANE TLSA %d %d %d %s%s %s at depth %d\n",
|
---|
| 1058 | usage, selector, mtype,
|
---|
| 1059 | (dlen > TLSA_TAIL_SIZE) ? "..." : "", hexdata,
|
---|
| 1060 | (mspki != NULL) ? "signed the certificate" :
|
---|
| 1061 | mdpth ? "matched TA certificate" : "matched EE certificate",
|
---|
| 1062 | mdpth);
|
---|
| 1063 | OPENSSL_free(hexdata);
|
---|
| 1064 | }
|
---|
| 1065 | }
|
---|
| 1066 |
|
---|
| 1067 | void print_ssl_summary(SSL *s)
|
---|
| 1068 | {
|
---|
| 1069 | const SSL_CIPHER *c;
|
---|
| 1070 | X509 *peer;
|
---|
| 1071 | /* const char *pnam = SSL_is_server(s) ? "client" : "server"; */
|
---|
| 1072 |
|
---|
| 1073 | BIO_printf(bio_err, "Protocol version: %s\n", SSL_get_version(s));
|
---|
| 1074 | print_raw_cipherlist(s);
|
---|
| 1075 | c = SSL_get_current_cipher(s);
|
---|
| 1076 | BIO_printf(bio_err, "Ciphersuite: %s\n", SSL_CIPHER_get_name(c));
|
---|
| 1077 | do_print_sigalgs(bio_err, s, 0);
|
---|
| 1078 | peer = SSL_get_peer_certificate(s);
|
---|
| 1079 | if (peer) {
|
---|
| 1080 | int nid;
|
---|
| 1081 |
|
---|
| 1082 | BIO_puts(bio_err, "Peer certificate: ");
|
---|
| 1083 | X509_NAME_print_ex(bio_err, X509_get_subject_name(peer),
|
---|
| 1084 | 0, XN_FLAG_ONELINE);
|
---|
| 1085 | BIO_puts(bio_err, "\n");
|
---|
| 1086 | if (SSL_get_peer_signature_nid(s, &nid))
|
---|
| 1087 | BIO_printf(bio_err, "Hash used: %s\n", OBJ_nid2sn(nid));
|
---|
| 1088 | print_verify_detail(s, bio_err);
|
---|
| 1089 | } else
|
---|
| 1090 | BIO_puts(bio_err, "No peer certificate\n");
|
---|
| 1091 | X509_free(peer);
|
---|
| 1092 | #ifndef OPENSSL_NO_EC
|
---|
| 1093 | ssl_print_point_formats(bio_err, s);
|
---|
| 1094 | if (SSL_is_server(s))
|
---|
| 1095 | ssl_print_curves(bio_err, s, 1);
|
---|
| 1096 | else
|
---|
| 1097 | ssl_print_tmp_key(bio_err, s);
|
---|
| 1098 | #else
|
---|
| 1099 | if (!SSL_is_server(s))
|
---|
| 1100 | ssl_print_tmp_key(bio_err, s);
|
---|
| 1101 | #endif
|
---|
| 1102 | }
|
---|
| 1103 |
|
---|
| 1104 | int config_ctx(SSL_CONF_CTX *cctx, STACK_OF(OPENSSL_STRING) *str,
|
---|
| 1105 | SSL_CTX *ctx)
|
---|
| 1106 | {
|
---|
| 1107 | int i;
|
---|
| 1108 |
|
---|
| 1109 | SSL_CONF_CTX_set_ssl_ctx(cctx, ctx);
|
---|
| 1110 | for (i = 0; i < sk_OPENSSL_STRING_num(str); i += 2) {
|
---|
| 1111 | const char *flag = sk_OPENSSL_STRING_value(str, i);
|
---|
| 1112 | const char *arg = sk_OPENSSL_STRING_value(str, i + 1);
|
---|
| 1113 | if (SSL_CONF_cmd(cctx, flag, arg) <= 0) {
|
---|
| 1114 | if (arg)
|
---|
| 1115 | BIO_printf(bio_err, "Error with command: \"%s %s\"\n",
|
---|
| 1116 | flag, arg);
|
---|
| 1117 | else
|
---|
| 1118 | BIO_printf(bio_err, "Error with command: \"%s\"\n", flag);
|
---|
| 1119 | ERR_print_errors(bio_err);
|
---|
| 1120 | return 0;
|
---|
| 1121 | }
|
---|
| 1122 | }
|
---|
| 1123 | if (!SSL_CONF_CTX_finish(cctx)) {
|
---|
| 1124 | BIO_puts(bio_err, "Error finishing context\n");
|
---|
| 1125 | ERR_print_errors(bio_err);
|
---|
| 1126 | return 0;
|
---|
| 1127 | }
|
---|
| 1128 | return 1;
|
---|
| 1129 | }
|
---|
| 1130 |
|
---|
| 1131 | static int add_crls_store(X509_STORE *st, STACK_OF(X509_CRL) *crls)
|
---|
| 1132 | {
|
---|
| 1133 | X509_CRL *crl;
|
---|
| 1134 | int i;
|
---|
| 1135 | for (i = 0; i < sk_X509_CRL_num(crls); i++) {
|
---|
| 1136 | crl = sk_X509_CRL_value(crls, i);
|
---|
| 1137 | X509_STORE_add_crl(st, crl);
|
---|
| 1138 | }
|
---|
| 1139 | return 1;
|
---|
| 1140 | }
|
---|
| 1141 |
|
---|
| 1142 | int ssl_ctx_add_crls(SSL_CTX *ctx, STACK_OF(X509_CRL) *crls, int crl_download)
|
---|
| 1143 | {
|
---|
| 1144 | X509_STORE *st;
|
---|
| 1145 | st = SSL_CTX_get_cert_store(ctx);
|
---|
| 1146 | add_crls_store(st, crls);
|
---|
| 1147 | if (crl_download)
|
---|
| 1148 | store_setup_crl_download(st);
|
---|
| 1149 | return 1;
|
---|
| 1150 | }
|
---|
| 1151 |
|
---|
| 1152 | int ssl_load_stores(SSL_CTX *ctx,
|
---|
| 1153 | const char *vfyCApath, const char *vfyCAfile,
|
---|
| 1154 | const char *chCApath, const char *chCAfile,
|
---|
| 1155 | STACK_OF(X509_CRL) *crls, int crl_download)
|
---|
| 1156 | {
|
---|
| 1157 | X509_STORE *vfy = NULL, *ch = NULL;
|
---|
| 1158 | int rv = 0;
|
---|
| 1159 | if (vfyCApath != NULL || vfyCAfile != NULL) {
|
---|
| 1160 | vfy = X509_STORE_new();
|
---|
| 1161 | if (vfy == NULL)
|
---|
| 1162 | goto err;
|
---|
| 1163 | if (!X509_STORE_load_locations(vfy, vfyCAfile, vfyCApath))
|
---|
| 1164 | goto err;
|
---|
| 1165 | add_crls_store(vfy, crls);
|
---|
| 1166 | SSL_CTX_set1_verify_cert_store(ctx, vfy);
|
---|
| 1167 | if (crl_download)
|
---|
| 1168 | store_setup_crl_download(vfy);
|
---|
| 1169 | }
|
---|
| 1170 | if (chCApath != NULL || chCAfile != NULL) {
|
---|
| 1171 | ch = X509_STORE_new();
|
---|
| 1172 | if (ch == NULL)
|
---|
| 1173 | goto err;
|
---|
| 1174 | if (!X509_STORE_load_locations(ch, chCAfile, chCApath))
|
---|
| 1175 | goto err;
|
---|
| 1176 | SSL_CTX_set1_chain_cert_store(ctx, ch);
|
---|
| 1177 | }
|
---|
| 1178 | rv = 1;
|
---|
| 1179 | err:
|
---|
| 1180 | X509_STORE_free(vfy);
|
---|
| 1181 | X509_STORE_free(ch);
|
---|
| 1182 | return rv;
|
---|
| 1183 | }
|
---|
| 1184 |
|
---|
| 1185 | /* Verbose print out of security callback */
|
---|
| 1186 |
|
---|
| 1187 | typedef struct {
|
---|
| 1188 | BIO *out;
|
---|
| 1189 | int verbose;
|
---|
| 1190 | int (*old_cb) (const SSL *s, const SSL_CTX *ctx, int op, int bits, int nid,
|
---|
| 1191 | void *other, void *ex);
|
---|
| 1192 | } security_debug_ex;
|
---|
| 1193 |
|
---|
| 1194 | static STRINT_PAIR callback_types[] = {
|
---|
| 1195 | {"Supported Ciphersuite", SSL_SECOP_CIPHER_SUPPORTED},
|
---|
| 1196 | {"Shared Ciphersuite", SSL_SECOP_CIPHER_SHARED},
|
---|
| 1197 | {"Check Ciphersuite", SSL_SECOP_CIPHER_CHECK},
|
---|
| 1198 | #ifndef OPENSSL_NO_DH
|
---|
| 1199 | {"Temp DH key bits", SSL_SECOP_TMP_DH},
|
---|
| 1200 | #endif
|
---|
| 1201 | {"Supported Curve", SSL_SECOP_CURVE_SUPPORTED},
|
---|
| 1202 | {"Shared Curve", SSL_SECOP_CURVE_SHARED},
|
---|
| 1203 | {"Check Curve", SSL_SECOP_CURVE_CHECK},
|
---|
| 1204 | {"Supported Signature Algorithm digest", SSL_SECOP_SIGALG_SUPPORTED},
|
---|
| 1205 | {"Shared Signature Algorithm digest", SSL_SECOP_SIGALG_SHARED},
|
---|
| 1206 | {"Check Signature Algorithm digest", SSL_SECOP_SIGALG_CHECK},
|
---|
| 1207 | {"Signature Algorithm mask", SSL_SECOP_SIGALG_MASK},
|
---|
| 1208 | {"Certificate chain EE key", SSL_SECOP_EE_KEY},
|
---|
| 1209 | {"Certificate chain CA key", SSL_SECOP_CA_KEY},
|
---|
| 1210 | {"Peer Chain EE key", SSL_SECOP_PEER_EE_KEY},
|
---|
| 1211 | {"Peer Chain CA key", SSL_SECOP_PEER_CA_KEY},
|
---|
| 1212 | {"Certificate chain CA digest", SSL_SECOP_CA_MD},
|
---|
| 1213 | {"Peer chain CA digest", SSL_SECOP_PEER_CA_MD},
|
---|
| 1214 | {"SSL compression", SSL_SECOP_COMPRESSION},
|
---|
| 1215 | {"Session ticket", SSL_SECOP_TICKET},
|
---|
| 1216 | {NULL}
|
---|
| 1217 | };
|
---|
| 1218 |
|
---|
| 1219 | static int security_callback_debug(const SSL *s, const SSL_CTX *ctx,
|
---|
| 1220 | int op, int bits, int nid,
|
---|
| 1221 | void *other, void *ex)
|
---|
| 1222 | {
|
---|
| 1223 | security_debug_ex *sdb = ex;
|
---|
| 1224 | int rv, show_bits = 1, cert_md = 0;
|
---|
| 1225 | const char *nm;
|
---|
| 1226 | rv = sdb->old_cb(s, ctx, op, bits, nid, other, ex);
|
---|
| 1227 | if (rv == 1 && sdb->verbose < 2)
|
---|
| 1228 | return 1;
|
---|
| 1229 | BIO_puts(sdb->out, "Security callback: ");
|
---|
| 1230 |
|
---|
| 1231 | nm = lookup(op, callback_types, NULL);
|
---|
| 1232 | switch (op) {
|
---|
| 1233 | case SSL_SECOP_TICKET:
|
---|
| 1234 | case SSL_SECOP_COMPRESSION:
|
---|
| 1235 | show_bits = 0;
|
---|
| 1236 | nm = NULL;
|
---|
| 1237 | break;
|
---|
| 1238 | case SSL_SECOP_VERSION:
|
---|
| 1239 | BIO_printf(sdb->out, "Version=%s", lookup(nid, ssl_versions, "???"));
|
---|
| 1240 | show_bits = 0;
|
---|
| 1241 | nm = NULL;
|
---|
| 1242 | break;
|
---|
| 1243 | case SSL_SECOP_CA_MD:
|
---|
| 1244 | case SSL_SECOP_PEER_CA_MD:
|
---|
| 1245 | cert_md = 1;
|
---|
| 1246 | break;
|
---|
| 1247 | }
|
---|
| 1248 | if (nm)
|
---|
| 1249 | BIO_printf(sdb->out, "%s=", nm);
|
---|
| 1250 |
|
---|
| 1251 | switch (op & SSL_SECOP_OTHER_TYPE) {
|
---|
| 1252 |
|
---|
| 1253 | case SSL_SECOP_OTHER_CIPHER:
|
---|
| 1254 | BIO_puts(sdb->out, SSL_CIPHER_get_name(other));
|
---|
| 1255 | break;
|
---|
| 1256 |
|
---|
| 1257 | #ifndef OPENSSL_NO_EC
|
---|
| 1258 | case SSL_SECOP_OTHER_CURVE:
|
---|
| 1259 | {
|
---|
| 1260 | const char *cname;
|
---|
| 1261 | cname = EC_curve_nid2nist(nid);
|
---|
| 1262 | if (cname == NULL)
|
---|
| 1263 | cname = OBJ_nid2sn(nid);
|
---|
| 1264 | BIO_puts(sdb->out, cname);
|
---|
| 1265 | }
|
---|
| 1266 | break;
|
---|
| 1267 | #endif
|
---|
| 1268 | #ifndef OPENSSL_NO_DH
|
---|
| 1269 | case SSL_SECOP_OTHER_DH:
|
---|
| 1270 | {
|
---|
| 1271 | DH *dh = other;
|
---|
| 1272 | BIO_printf(sdb->out, "%d", DH_bits(dh));
|
---|
| 1273 | break;
|
---|
| 1274 | }
|
---|
| 1275 | #endif
|
---|
| 1276 | case SSL_SECOP_OTHER_CERT:
|
---|
| 1277 | {
|
---|
| 1278 | if (cert_md) {
|
---|
| 1279 | int sig_nid = X509_get_signature_nid(other);
|
---|
| 1280 | BIO_puts(sdb->out, OBJ_nid2sn(sig_nid));
|
---|
| 1281 | } else {
|
---|
| 1282 | EVP_PKEY *pkey = X509_get0_pubkey(other);
|
---|
| 1283 | const char *algname = "";
|
---|
| 1284 | EVP_PKEY_asn1_get0_info(NULL, NULL, NULL, NULL,
|
---|
| 1285 | &algname, EVP_PKEY_get0_asn1(pkey));
|
---|
| 1286 | BIO_printf(sdb->out, "%s, bits=%d",
|
---|
| 1287 | algname, EVP_PKEY_bits(pkey));
|
---|
| 1288 | }
|
---|
| 1289 | break;
|
---|
| 1290 | }
|
---|
| 1291 | case SSL_SECOP_OTHER_SIGALG:
|
---|
| 1292 | {
|
---|
| 1293 | const unsigned char *salg = other;
|
---|
| 1294 | const char *sname = NULL;
|
---|
| 1295 | switch (salg[1]) {
|
---|
| 1296 | case TLSEXT_signature_anonymous:
|
---|
| 1297 | sname = "anonymous";
|
---|
| 1298 | break;
|
---|
| 1299 | case TLSEXT_signature_rsa:
|
---|
| 1300 | sname = "RSA";
|
---|
| 1301 | break;
|
---|
| 1302 | case TLSEXT_signature_dsa:
|
---|
| 1303 | sname = "DSA";
|
---|
| 1304 | break;
|
---|
| 1305 | case TLSEXT_signature_ecdsa:
|
---|
| 1306 | sname = "ECDSA";
|
---|
| 1307 | break;
|
---|
| 1308 | }
|
---|
| 1309 |
|
---|
| 1310 | BIO_puts(sdb->out, OBJ_nid2sn(nid));
|
---|
| 1311 | if (sname)
|
---|
| 1312 | BIO_printf(sdb->out, ", algorithm=%s", sname);
|
---|
| 1313 | else
|
---|
| 1314 | BIO_printf(sdb->out, ", algid=%d", salg[1]);
|
---|
| 1315 | break;
|
---|
| 1316 | }
|
---|
| 1317 |
|
---|
| 1318 | }
|
---|
| 1319 |
|
---|
| 1320 | if (show_bits)
|
---|
| 1321 | BIO_printf(sdb->out, ", security bits=%d", bits);
|
---|
| 1322 | BIO_printf(sdb->out, ": %s\n", rv ? "yes" : "no");
|
---|
| 1323 | return rv;
|
---|
| 1324 | }
|
---|
| 1325 |
|
---|
| 1326 | void ssl_ctx_security_debug(SSL_CTX *ctx, int verbose)
|
---|
| 1327 | {
|
---|
| 1328 | static security_debug_ex sdb;
|
---|
| 1329 |
|
---|
| 1330 | sdb.out = bio_err;
|
---|
| 1331 | sdb.verbose = verbose;
|
---|
| 1332 | sdb.old_cb = SSL_CTX_get_security_callback(ctx);
|
---|
| 1333 | SSL_CTX_set_security_callback(ctx, security_callback_debug);
|
---|
| 1334 | SSL_CTX_set0_security_ex_data(ctx, &sdb);
|
---|
| 1335 | }
|
---|