| /* |
| * Copyright 1995-2022 The OpenSSL Project Authors. All Rights Reserved. |
| * |
| * Licensed under the Apache License 2.0 (the "License"). You may not use |
| * this file except in compliance with the License. You can obtain a copy |
| * in the file LICENSE in the source distribution or at |
| * https://www.openssl.org/source/license.html |
| */ |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include "apps.h" |
| #include "progs.h" |
| #include <openssl/err.h> |
| #include <openssl/ssl.h> |
| #include "s_apps.h" |
| |
| typedef enum OPTION_choice { |
| OPT_COMMON, |
| OPT_STDNAME, |
| OPT_CONVERT, |
| OPT_SSL3, |
| OPT_TLS1, |
| OPT_TLS1_1, |
| OPT_TLS1_2, |
| OPT_TLS1_3, |
| OPT_PSK, |
| OPT_SRP, |
| OPT_CIPHERSUITES, |
| OPT_V, OPT_UPPER_V, OPT_S, OPT_PROV_ENUM |
| } OPTION_CHOICE; |
| |
| const OPTIONS ciphers_options[] = { |
| {OPT_HELP_STR, 1, '-', "Usage: %s [options] [cipher]\n"}, |
| |
| OPT_SECTION("General"), |
| {"help", OPT_HELP, '-', "Display this summary"}, |
| |
| OPT_SECTION("Output"), |
| {"v", OPT_V, '-', "Verbose listing of the SSL/TLS ciphers"}, |
| {"V", OPT_UPPER_V, '-', "Even more verbose"}, |
| {"stdname", OPT_STDNAME, '-', "Show standard cipher names"}, |
| {"convert", OPT_CONVERT, 's', "Convert standard name into OpenSSL name"}, |
| |
| OPT_SECTION("Cipher specification"), |
| {"s", OPT_S, '-', "Only supported ciphers"}, |
| #ifndef OPENSSL_NO_SSL3 |
| {"ssl3", OPT_SSL3, '-', "Ciphers compatible with SSL3"}, |
| #endif |
| #ifndef OPENSSL_NO_TLS1 |
| {"tls1", OPT_TLS1, '-', "Ciphers compatible with TLS1"}, |
| #endif |
| #ifndef OPENSSL_NO_TLS1_1 |
| {"tls1_1", OPT_TLS1_1, '-', "Ciphers compatible with TLS1.1"}, |
| #endif |
| #ifndef OPENSSL_NO_TLS1_2 |
| {"tls1_2", OPT_TLS1_2, '-', "Ciphers compatible with TLS1.2"}, |
| #endif |
| #ifndef OPENSSL_NO_TLS1_3 |
| {"tls1_3", OPT_TLS1_3, '-', "Ciphers compatible with TLS1.3"}, |
| #endif |
| #ifndef OPENSSL_NO_PSK |
| {"psk", OPT_PSK, '-', "Include ciphersuites requiring PSK"}, |
| #endif |
| #ifndef OPENSSL_NO_SRP |
| {"srp", OPT_SRP, '-', "(deprecated) Include ciphersuites requiring SRP"}, |
| #endif |
| {"ciphersuites", OPT_CIPHERSUITES, 's', |
| "Configure the TLSv1.3 ciphersuites to use"}, |
| OPT_PROV_OPTIONS, |
| |
| OPT_PARAMETERS(), |
| {"cipher", 0, 0, "Cipher string to decode (optional)"}, |
| {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; |
| int stdname = 0; |
| #ifndef OPENSSL_NO_PSK |
| int psk = 0; |
| #endif |
| #ifndef OPENSSL_NO_SRP |
| int srp = 0; |
| #endif |
| const char *p; |
| char *ciphers = NULL, *prog, *convert = NULL, *ciphersuites = NULL; |
| char buf[512]; |
| OPTION_CHOICE o; |
| int min_version = 0, max_version = 0; |
| |
| 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: |
| stdname = verbose = 1; |
| break; |
| case OPT_CONVERT: |
| convert = opt_arg(); |
| break; |
| case OPT_SSL3: |
| min_version = SSL3_VERSION; |
| max_version = SSL3_VERSION; |
| break; |
| case OPT_TLS1: |
| min_version = TLS1_VERSION; |
| max_version = TLS1_VERSION; |
| break; |
| case OPT_TLS1_1: |
| min_version = TLS1_1_VERSION; |
| max_version = TLS1_1_VERSION; |
| break; |
| case OPT_TLS1_2: |
| min_version = TLS1_2_VERSION; |
| max_version = TLS1_2_VERSION; |
| break; |
| case OPT_TLS1_3: |
| min_version = TLS1_3_VERSION; |
| max_version = TLS1_3_VERSION; |
| break; |
| case OPT_PSK: |
| #ifndef OPENSSL_NO_PSK |
| psk = 1; |
| #endif |
| break; |
| case OPT_SRP: |
| #ifndef OPENSSL_NO_SRP |
| srp = 1; |
| #endif |
| break; |
| case OPT_CIPHERSUITES: |
| ciphersuites = opt_arg(); |
| break; |
| case OPT_PROV_CASES: |
| if (!opt_provider(o)) |
| goto end; |
| break; |
| } |
| } |
| |
| /* Optional arg is cipher name. */ |
| argv = opt_rest(); |
| if (opt_num_rest() == 1) |
| ciphers = argv[0]; |
| else if (!opt_check_rest_arg(NULL)) |
| goto opthelp; |
| |
| if (convert != NULL) { |
| BIO_printf(bio_out, "OpenSSL cipher name: %s\n", |
| OPENSSL_cipher_name(convert)); |
| ret = 0; |
| goto end; |
| } |
| |
| ctx = SSL_CTX_new_ex(app_get0_libctx(), app_get0_propq(), meth); |
| if (ctx == NULL) |
| goto err; |
| if (SSL_CTX_set_min_proto_version(ctx, min_version) == 0) |
| goto err; |
| if (SSL_CTX_set_max_proto_version(ctx, max_version) == 0) |
| goto err; |
| |
| #ifndef OPENSSL_NO_PSK |
| if (psk) |
| SSL_CTX_set_psk_client_callback(ctx, dummy_psk); |
| #endif |
| #ifndef OPENSSL_NO_SRP |
| if (srp) |
| set_up_dummy_srp(ctx); |
| #endif |
| |
| if (ciphersuites != NULL && !SSL_CTX_set_ciphersuites(ctx, ciphersuites)) { |
| BIO_printf(bio_err, "Error setting TLSv1.3 ciphersuites\n"); |
| goto err; |
| } |
| |
| 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 */ |
| } |
| if (stdname) { |
| const char *nm = SSL_CIPHER_standard_name(c); |
| if (nm == NULL) |
| nm = "UNKNOWN"; |
| BIO_printf(bio_out, "%-45s - ", nm); |
| } |
| 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; |
| } |
