mirror of
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6b01bed206
Some users want to disable SSL 3.0/TLS 1.0/TLS 1.1, and enable just TLS 1.2. In the future they might want to disable TLS 1.2 and enable just TLS 1.3, ... This commit makes it possible to disable any or all of the TLS or DTLS protocols. It also considerably simplifies the SSL/TLS tests, by auto-generating the min/max version tests based on the set of supported protocols (425 explicitly written out tests got replaced by two loops that generate all 425 tests if all protocols are enabled, fewer otherwise). Reviewed-by: Richard Levitte <levitte@openssl.org>
267 lines
8.5 KiB
C
267 lines
8.5 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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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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#ifndef OPENSSL_NO_SSL3
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meth = SSLv3_client_method();
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#endif
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break;
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case OPT_TLS1:
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#ifndef OPENSSL_NO_TLS1
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meth = TLSv1_client_method();
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#endif
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break;
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case OPT_TLS1_1:
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#ifndef OPENSSL_NO_TLS1_1
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meth = TLSv1_1_client_method();
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#endif
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break;
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case OPT_TLS1_2:
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#ifndef OPENSSL_NO_TLS1_2
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meth = TLSv1_2_client_method();
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#endif
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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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#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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