268 lines
8.7 KiB
C
268 lines
8.7 KiB
C
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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* All rights reserved.
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*
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* This package is an SSL implementation written
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* by Eric Young (eay@cryptsoft.com).
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* The implementation was written so as to conform with Netscapes SSL.
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*
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* This library is free for commercial and non-commercial use as long as
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* the following conditions are aheared to. The following conditions
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* apply to all code found in this distribution, be it the RC4, RSA,
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* lhash, DES, etc., code; not just the SSL code. The SSL documentation
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* included with this distribution is covered by the same copyright terms
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* except that the holder is Tim Hudson (tjh@cryptsoft.com).
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*
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* Copyright remains Eric Young's, and as such any Copyright notices in
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* the code are not to be removed.
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* If this package is used in a product, Eric Young should be given attribution
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* as the author of the parts of the library used.
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* This can be in the form of a textual message at program startup or
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* in documentation (online or textual) provided with the package.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* "This product includes cryptographic software written by
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* Eric Young (eay@cryptsoft.com)"
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* The word 'cryptographic' can be left out if the rouines from the library
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* being used are not cryptographic related :-).
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* 4. If you include any Windows specific code (or a derivative thereof) from
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* the apps directory (application code) you must include an acknowledgement:
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* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
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*
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* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* The licence and distribution terms for any publically available version or
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* derivative of this code cannot be changed. i.e. this code cannot simply be
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* copied and put under another distribution licence
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* [including the GNU Public Licence.]
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "apps.h"
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#include <openssl/err.h>
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#include <openssl/ssl.h>
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typedef enum OPTION_choice {
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OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
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OPT_STDNAME,
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OPT_SSL3,
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OPT_TLS1,
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OPT_TLS1_1,
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OPT_TLS1_2,
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OPT_PSK,
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OPT_V, OPT_UPPER_V, OPT_S
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} OPTION_CHOICE;
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OPTIONS ciphers_options[] = {
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{"help", OPT_HELP, '-', "Display this summary"},
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{"v", OPT_V, '-', "Verbose listing of the SSL/TLS ciphers"},
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{"V", OPT_UPPER_V, '-', "Even more verbose"},
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{"s", OPT_S, '-', "Only supported ciphers"},
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#ifndef OPENSSL_NO_SSL3
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{"ssl3", OPT_SSL3, '-', "SSL3 mode"},
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#endif
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#ifndef OPENSSL_NO_TLS1
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{"tls1", OPT_TLS1, '-', "TLS1 mode"},
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#endif
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#ifndef OPENSSL_NO_TLS1_1
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{"tls1_1", OPT_TLS1_1, '-', "TLS1.1 mode"},
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#endif
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#ifndef OPENSSL_NO_TLS1_2
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{"tls1_2", OPT_TLS1_2, '-', "TLS1.2 mode"},
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#endif
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#ifndef OPENSSL_NO_SSL_TRACE
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{"stdname", OPT_STDNAME, '-', "Show standard cipher names"},
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#endif
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#ifndef OPENSSL_NO_PSK
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{"psk", OPT_PSK, '-', "include ciphersuites requiring PSK"},
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#endif
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{NULL}
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};
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#ifndef OPENSSL_NO_PSK
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static unsigned int dummy_psk(SSL *ssl, const char *hint, char *identity,
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unsigned int max_identity_len,
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unsigned char *psk,
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unsigned int max_psk_len)
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{
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return 0;
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}
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#endif
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int ciphers_main(int argc, char **argv)
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{
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SSL_CTX *ctx = NULL;
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SSL *ssl = NULL;
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STACK_OF(SSL_CIPHER) *sk = NULL;
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const SSL_METHOD *meth = TLS_server_method();
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int ret = 1, i, verbose = 0, Verbose = 0, use_supported = 0;
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#ifndef OPENSSL_NO_SSL_TRACE
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int stdname = 0;
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#endif
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#ifndef OPENSSL_NO_PSK
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int psk = 0;
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#endif
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const char *p;
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char *ciphers = NULL, *prog;
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char buf[512];
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OPTION_CHOICE o;
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int min_version = 0, max_version = 0;
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prog = opt_init(argc, argv, ciphers_options);
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while ((o = opt_next()) != OPT_EOF) {
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switch (o) {
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case OPT_EOF:
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case OPT_ERR:
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opthelp:
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BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
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goto end;
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case OPT_HELP:
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opt_help(ciphers_options);
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ret = 0;
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goto end;
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case OPT_V:
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verbose = 1;
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break;
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case OPT_UPPER_V:
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verbose = Verbose = 1;
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break;
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case OPT_S:
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use_supported = 1;
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break;
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case OPT_STDNAME:
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#ifndef OPENSSL_NO_SSL_TRACE
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stdname = verbose = 1;
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#endif
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break;
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case OPT_SSL3:
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min_version = SSL3_VERSION;
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max_version = SSL3_VERSION;
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break;
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case OPT_TLS1:
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min_version = TLS1_VERSION;
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max_version = TLS1_VERSION;
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break;
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case OPT_TLS1_1:
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min_version = TLS1_1_VERSION;
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max_version = TLS1_1_VERSION;
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break;
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case OPT_TLS1_2:
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min_version = TLS1_2_VERSION;
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max_version = TLS1_2_VERSION;
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break;
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case OPT_PSK:
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#ifndef OPENSSL_NO_PSK
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psk = 1;
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#endif
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break;
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}
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}
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argv = opt_rest();
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argc = opt_num_rest();
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if (argc == 1)
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ciphers = *argv;
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else if (argc != 0)
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goto opthelp;
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ctx = SSL_CTX_new(meth);
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if (ctx == NULL)
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goto err;
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if (SSL_CTX_set_min_proto_version(ctx, min_version) == 0)
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goto err;
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if (SSL_CTX_set_max_proto_version(ctx, max_version) == 0)
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goto err;
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#ifndef OPENSSL_NO_PSK
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if (psk)
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SSL_CTX_set_psk_client_callback(ctx, dummy_psk);
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#endif
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if (ciphers != NULL) {
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if (!SSL_CTX_set_cipher_list(ctx, ciphers)) {
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BIO_printf(bio_err, "Error in cipher list\n");
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goto err;
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}
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}
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ssl = SSL_new(ctx);
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if (ssl == NULL)
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goto err;
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if (use_supported)
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sk = SSL_get1_supported_ciphers(ssl);
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else
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sk = SSL_get_ciphers(ssl);
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if (!verbose) {
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for (i = 0; i < sk_SSL_CIPHER_num(sk); i++) {
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const SSL_CIPHER *c = sk_SSL_CIPHER_value(sk, i);
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p = SSL_CIPHER_get_name(c);
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if (p == NULL)
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break;
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if (i != 0)
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BIO_printf(bio_out, ":");
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BIO_printf(bio_out, "%s", p);
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}
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BIO_printf(bio_out, "\n");
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} else {
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for (i = 0; i < sk_SSL_CIPHER_num(sk); i++) {
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const SSL_CIPHER *c;
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c = sk_SSL_CIPHER_value(sk, i);
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if (Verbose) {
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unsigned long id = SSL_CIPHER_get_id(c);
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int id0 = (int)(id >> 24);
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int id1 = (int)((id >> 16) & 0xffL);
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int id2 = (int)((id >> 8) & 0xffL);
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int id3 = (int)(id & 0xffL);
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if ((id & 0xff000000L) == 0x03000000L)
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BIO_printf(bio_out, " 0x%02X,0x%02X - ", id2, id3); /* SSL3
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* cipher */
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else
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BIO_printf(bio_out, "0x%02X,0x%02X,0x%02X,0x%02X - ", id0, id1, id2, id3); /* whatever */
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}
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#ifndef OPENSSL_NO_SSL_TRACE
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if (stdname) {
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const char *nm = SSL_CIPHER_standard_name(c);
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if (nm == NULL)
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nm = "UNKNOWN";
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BIO_printf(bio_out, "%s - ", nm);
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}
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#endif
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BIO_puts(bio_out, SSL_CIPHER_description(c, buf, sizeof buf));
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}
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}
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ret = 0;
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goto end;
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err:
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ERR_print_errors(bio_err);
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end:
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if (use_supported)
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sk_SSL_CIPHER_free(sk);
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SSL_CTX_free(ctx);
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SSL_free(ssl);
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return (ret);
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}
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