/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) * All rights reserved. * * This package is an SSL implementation written * by Eric Young (eay@cryptsoft.com). * The implementation was written so as to conform with Netscapes SSL. * * This library is free for commercial and non-commercial use as long as * the following conditions are aheared to. The following conditions * apply to all code found in this distribution, be it the RC4, RSA, * lhash, DES, etc., code; not just the SSL code. The SSL documentation * included with this distribution is covered by the same copyright terms * except that the holder is Tim Hudson (tjh@cryptsoft.com). * * Copyright remains Eric Young's, and as such any Copyright notices in * the code are not to be removed. * If this package is used in a product, Eric Young should be given attribution * as the author of the parts of the library used. * This can be in the form of a textual message at program startup or * in documentation (online or textual) provided with the package. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * "This product includes cryptographic software written by * Eric Young (eay@cryptsoft.com)" * The word 'cryptographic' can be left out if the rouines from the library * being used are not cryptographic related :-). * 4. If you include any Windows specific code (or a derivative thereof) from * the apps directory (application code) you must include an acknowledgement: * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" * * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * The licence and distribution terms for any publically available version or * derivative of this code cannot be changed. i.e. this code cannot simply be * copied and put under another distribution licence * [including the GNU Public Licence.] */ #include #include #include #include "apps.h" #include #include typedef enum OPTION_choice { OPT_ERR = -1, OPT_EOF = 0, OPT_HELP, OPT_STDNAME, OPT_SSL3, OPT_TLS1, OPT_TLS1_1, OPT_TLS1_2, OPT_PSK, OPT_V, OPT_UPPER_V, OPT_S } OPTION_CHOICE; OPTIONS ciphers_options[] = { {"help", OPT_HELP, '-', "Display this summary"}, {"v", OPT_V, '-', "Verbose listing of the SSL/TLS ciphers"}, {"V", OPT_UPPER_V, '-', "Even more verbose"}, {"s", OPT_S, '-', "Only supported ciphers"}, {"tls1", OPT_TLS1, '-', "TLS1 mode"}, {"tls1_1", OPT_TLS1_1, '-', "TLS1.1 mode"}, {"tls1_2", OPT_TLS1_2, '-', "TLS1.2 mode"}, #ifndef OPENSSL_NO_SSL_TRACE {"stdname", OPT_STDNAME, '-', "Show standard cipher names"}, #endif #ifndef OPENSSL_NO_SSL3 {"ssl3", OPT_SSL3, '-', "SSL3 mode"}, #endif #ifndef OPENSSL_NO_PSK {"psk", OPT_PSK, '-', "include ciphersuites requiring PSK"}, #endif {NULL} }; #ifndef OPENSSL_NO_PSK static unsigned int dummy_psk(SSL *ssl, const char *hint, char *identity, unsigned int max_identity_len, unsigned char *psk, unsigned int max_psk_len) { return 0; } #endif int ciphers_main(int argc, char **argv) { SSL_CTX *ctx = NULL; SSL *ssl = NULL; STACK_OF(SSL_CIPHER) *sk = NULL; const SSL_METHOD *meth = TLS_server_method(); int ret = 1, i, verbose = 0, Verbose = 0, use_supported = 0; #ifndef OPENSSL_NO_SSL_TRACE int stdname = 0; #endif #ifndef OPENSSL_NO_PSK int psk = 0; #endif const char *p; char *ciphers = NULL, *prog; char buf[512]; OPTION_CHOICE o; prog = opt_init(argc, argv, ciphers_options); while ((o = opt_next()) != OPT_EOF) { switch (o) { case OPT_EOF: case OPT_ERR: opthelp: BIO_printf(bio_err, "%s: Use -help for summary.\n", prog); goto end; case OPT_HELP: opt_help(ciphers_options); ret = 0; goto end; case OPT_V: verbose = 1; break; case OPT_UPPER_V: verbose = Verbose = 1; break; case OPT_S: use_supported = 1; break; case OPT_STDNAME: #ifndef OPENSSL_NO_SSL_TRACE stdname = verbose = 1; #endif break; case OPT_SSL3: #ifndef OPENSSL_NO_SSL3 meth = SSLv3_client_method(); #endif break; case OPT_TLS1: meth = TLSv1_client_method(); break; case OPT_TLS1_1: meth = TLSv1_1_client_method(); break; case OPT_TLS1_2: meth = TLSv1_2_client_method(); break; case OPT_PSK: #ifndef OPENSSL_NO_PSK psk = 1; #endif break; } } argv = opt_rest(); argc = opt_num_rest(); if (argc == 1) ciphers = *argv; else if (argc != 0) goto opthelp; ctx = SSL_CTX_new(meth); if (ctx == NULL) goto err; #ifndef OPENSSL_NO_PSK if (psk) SSL_CTX_set_psk_client_callback(ctx, dummy_psk); #endif if (ciphers != NULL) { if (!SSL_CTX_set_cipher_list(ctx, ciphers)) { BIO_printf(bio_err, "Error in cipher list\n"); goto err; } } ssl = SSL_new(ctx); if (ssl == NULL) goto err; if (use_supported) sk = SSL_get1_supported_ciphers(ssl); else sk = SSL_get_ciphers(ssl); if (!verbose) { for (i = 0; i < sk_SSL_CIPHER_num(sk); i++) { const SSL_CIPHER *c = sk_SSL_CIPHER_value(sk, i); p = SSL_CIPHER_get_name(c); if (p == NULL) break; if (i != 0) BIO_printf(bio_out, ":"); BIO_printf(bio_out, "%s", p); } BIO_printf(bio_out, "\n"); } else { for (i = 0; i < sk_SSL_CIPHER_num(sk); i++) { const SSL_CIPHER *c; c = sk_SSL_CIPHER_value(sk, i); if (Verbose) { unsigned long id = SSL_CIPHER_get_id(c); int id0 = (int)(id >> 24); int id1 = (int)((id >> 16) & 0xffL); int id2 = (int)((id >> 8) & 0xffL); int id3 = (int)(id & 0xffL); if ((id & 0xff000000L) == 0x03000000L) BIO_printf(bio_out, " 0x%02X,0x%02X - ", id2, id3); /* SSL3 * cipher */ else BIO_printf(bio_out, "0x%02X,0x%02X,0x%02X,0x%02X - ", id0, id1, id2, id3); /* whatever */ } #ifndef OPENSSL_NO_SSL_TRACE if (stdname) { const char *nm = SSL_CIPHER_standard_name(c); if (nm == NULL) nm = "UNKNOWN"; BIO_printf(bio_out, "%s - ", nm); } #endif BIO_puts(bio_out, SSL_CIPHER_description(c, buf, sizeof buf)); } } ret = 0; goto end; err: ERR_print_errors(bio_err); end: if (use_supported) sk_SSL_CIPHER_free(sk); SSL_CTX_free(ctx); SSL_free(ssl); return (ret); }