/* Copyright (c) 2014, Google Inc. * * Permission to use, copy, modify, and/or distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ #include #include #include #include #include #include #include #include #include "test/scoped_types.h" #include "../crypto/test/test_util.h" struct ExpectedCipher { unsigned long id; int in_group_flag; }; struct CipherTest { // The rule string to apply. const char *rule; // The list of expected ciphers, in order, terminated with -1. const ExpectedCipher *expected; }; // Selecting individual ciphers should work. static const char kRule1[] = "ECDHE-ECDSA-CHACHA20-POLY1305:" "ECDHE-RSA-CHACHA20-POLY1305:" "ECDHE-ECDSA-AES128-GCM-SHA256:" "ECDHE-RSA-AES128-GCM-SHA256"; static const ExpectedCipher kExpected1[] = { { TLS1_CK_ECDHE_ECDSA_CHACHA20_POLY1305, 0 }, { TLS1_CK_ECDHE_RSA_CHACHA20_POLY1305, 0 }, { TLS1_CK_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, 0 }, { TLS1_CK_ECDHE_RSA_WITH_AES_128_GCM_SHA256, 0 }, { 0, 0 }, }; // + reorders selected ciphers to the end, keeping their relative // order. static const char kRule2[] = "ECDHE-ECDSA-CHACHA20-POLY1305:" "ECDHE-RSA-CHACHA20-POLY1305:" "ECDHE-ECDSA-AES128-GCM-SHA256:" "ECDHE-RSA-AES128-GCM-SHA256:" "+aRSA"; static const ExpectedCipher kExpected2[] = { { TLS1_CK_ECDHE_ECDSA_CHACHA20_POLY1305, 0 }, { TLS1_CK_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, 0 }, { TLS1_CK_ECDHE_RSA_CHACHA20_POLY1305, 0 }, { TLS1_CK_ECDHE_RSA_WITH_AES_128_GCM_SHA256, 0 }, { 0, 0 }, }; // ! banishes ciphers from future selections. static const char kRule3[] = "!aRSA:" "ECDHE-ECDSA-CHACHA20-POLY1305:" "ECDHE-RSA-CHACHA20-POLY1305:" "ECDHE-ECDSA-AES128-GCM-SHA256:" "ECDHE-RSA-AES128-GCM-SHA256"; static const ExpectedCipher kExpected3[] = { { TLS1_CK_ECDHE_ECDSA_CHACHA20_POLY1305, 0 }, { TLS1_CK_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, 0 }, { 0, 0 }, }; // Multiple masks can be ANDed in a single rule. static const char kRule4[] = "kRSA+AESGCM+AES128"; static const ExpectedCipher kExpected4[] = { { TLS1_CK_RSA_WITH_AES_128_GCM_SHA256, 0 }, { 0, 0 }, }; // - removes selected ciphers, but preserves their order for future // selections. Select AES_128_GCM, but order the key exchanges RSA, // DHE_RSA, ECDHE_RSA. static const char kRule5[] = "ALL:-kECDHE:-kDHE:-kRSA:-ALL:" "AESGCM+AES128+aRSA"; static const ExpectedCipher kExpected5[] = { { TLS1_CK_RSA_WITH_AES_128_GCM_SHA256, 0 }, { TLS1_CK_DHE_RSA_WITH_AES_128_GCM_SHA256, 0 }, { TLS1_CK_ECDHE_RSA_WITH_AES_128_GCM_SHA256, 0 }, { 0, 0 }, }; // Unknown selectors are no-ops. static const char kRule6[] = "ECDHE-ECDSA-CHACHA20-POLY1305:" "ECDHE-RSA-CHACHA20-POLY1305:" "ECDHE-ECDSA-AES128-GCM-SHA256:" "ECDHE-RSA-AES128-GCM-SHA256:" "BOGUS1:-BOGUS2:+BOGUS3:!BOGUS4"; static const ExpectedCipher kExpected6[] = { { TLS1_CK_ECDHE_ECDSA_CHACHA20_POLY1305, 0 }, { TLS1_CK_ECDHE_RSA_CHACHA20_POLY1305, 0 }, { TLS1_CK_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, 0 }, { TLS1_CK_ECDHE_RSA_WITH_AES_128_GCM_SHA256, 0 }, { 0, 0 }, }; // Square brackets specify equi-preference groups. static const char kRule7[] = "[ECDHE-ECDSA-CHACHA20-POLY1305|ECDHE-ECDSA-AES128-GCM-SHA256]:" "[ECDHE-RSA-CHACHA20-POLY1305]:" "ECDHE-RSA-AES128-GCM-SHA256"; static const ExpectedCipher kExpected7[] = { { TLS1_CK_ECDHE_ECDSA_CHACHA20_POLY1305, 1 }, { TLS1_CK_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, 0 }, { TLS1_CK_ECDHE_RSA_CHACHA20_POLY1305, 0 }, { TLS1_CK_ECDHE_RSA_WITH_AES_128_GCM_SHA256, 0 }, { 0, 0 }, }; // @STRENGTH performs a stable strength-sort of the selected // ciphers and only the selected ciphers. static const char kRule8[] = // To simplify things, banish all but {ECDHE_RSA,RSA} x // {CHACHA20,AES_256_CBC,AES_128_CBC,RC4} x SHA1. "!kEDH:!AESGCM:!3DES:!SHA256:!MD5:!SHA384:" // Order some ciphers backwards by strength. "ALL:-CHACHA20:-AES256:-AES128:-RC4:-ALL:" // Select ECDHE ones and sort them by strength. Ties should resolve // based on the order above. "kECDHE:@STRENGTH:-ALL:" // Now bring back everything uses RSA. ECDHE_RSA should be first, // sorted by strength. Then RSA, backwards by strength. "aRSA"; static const ExpectedCipher kExpected8[] = { { TLS1_CK_ECDHE_RSA_WITH_AES_256_CBC_SHA, 0 }, { TLS1_CK_ECDHE_RSA_CHACHA20_POLY1305, 0 }, { TLS1_CK_ECDHE_RSA_WITH_RC4_128_SHA, 0 }, { TLS1_CK_ECDHE_RSA_WITH_AES_128_CBC_SHA, 0 }, { SSL3_CK_RSA_RC4_128_SHA, 0 }, { TLS1_CK_RSA_WITH_AES_128_SHA, 0 }, { TLS1_CK_RSA_WITH_AES_256_SHA, 0 }, { 0, 0 }, }; // Exact ciphers may not be used in multi-part rules; they are treated // as unknown aliases. static const char kRule9[] = "ECDHE-ECDSA-CHACHA20-POLY1305:" "ECDHE-RSA-CHACHA20-POLY1305:" "!ECDHE-RSA-CHACHA20-POLY1305+RSA:" "!ECDSA+ECDHE-ECDSA-CHACHA20-POLY1305"; static const ExpectedCipher kExpected9[] = { { TLS1_CK_ECDHE_ECDSA_CHACHA20_POLY1305, 0 }, { TLS1_CK_ECDHE_RSA_CHACHA20_POLY1305, 0 }, { 0, 0 }, }; static CipherTest kCipherTests[] = { { kRule1, kExpected1 }, { kRule2, kExpected2 }, { kRule3, kExpected3 }, { kRule4, kExpected4 }, { kRule5, kExpected5 }, { kRule6, kExpected6 }, { kRule7, kExpected7 }, { kRule8, kExpected8 }, { kRule9, kExpected9 }, { NULL, NULL }, }; static const char *kBadRules[] = { // Invalid brackets. "[ECDHE-RSA-CHACHA20-POLY1305|ECDHE-RSA-AES128-GCM-SHA256", "RSA]", "[[RSA]]", // Operators inside brackets. "[+RSA]", // Unknown directive. "@BOGUS", // Empty cipher lists error at SSL_CTX_set_cipher_list. "", "BOGUS", // COMPLEMENTOFDEFAULT is empty. "COMPLEMENTOFDEFAULT", // Invalid command. "?BAR", // Special operators are not allowed if groups are used. "[ECDHE-RSA-CHACHA20-POLY1305|ECDHE-RSA-AES128-GCM-SHA256]:+FOO", "[ECDHE-RSA-CHACHA20-POLY1305|ECDHE-RSA-AES128-GCM-SHA256]:!FOO", "[ECDHE-RSA-CHACHA20-POLY1305|ECDHE-RSA-AES128-GCM-SHA256]:-FOO", "[ECDHE-RSA-CHACHA20-POLY1305|ECDHE-RSA-AES128-GCM-SHA256]:@STRENGTH", NULL, }; static const char *kMustNotIncludeNull[] = { "ALL", "DEFAULT", "ALL:!eNULL", "ALL:!NULL", "FIPS", "SHA", "SHA1", "RSA", "SSLv3", "TLSv1", "TLSv1.2", NULL }; static void PrintCipherPreferenceList(ssl_cipher_preference_list_st *list) { bool in_group = false; for (size_t i = 0; i < sk_SSL_CIPHER_num(list->ciphers); i++) { const SSL_CIPHER *cipher = sk_SSL_CIPHER_value(list->ciphers, i); if (!in_group && list->in_group_flags[i]) { fprintf(stderr, "\t[\n"); in_group = true; } fprintf(stderr, "\t"); if (in_group) { fprintf(stderr, " "); } fprintf(stderr, "%s\n", SSL_CIPHER_get_name(cipher)); if (in_group && !list->in_group_flags[i]) { fprintf(stderr, "\t]\n"); in_group = false; } } } static bool TestCipherRule(CipherTest *t) { ScopedSSL_CTX ctx(SSL_CTX_new(TLS_method())); if (!ctx) { return false; } if (!SSL_CTX_set_cipher_list(ctx.get(), t->rule)) { fprintf(stderr, "Error testing cipher rule '%s'\n", t->rule); return false; } // Compare the two lists. size_t i; for (i = 0; i < sk_SSL_CIPHER_num(ctx->cipher_list->ciphers); i++) { const SSL_CIPHER *cipher = sk_SSL_CIPHER_value(ctx->cipher_list->ciphers, i); if (t->expected[i].id != SSL_CIPHER_get_id(cipher) || t->expected[i].in_group_flag != ctx->cipher_list->in_group_flags[i]) { fprintf(stderr, "Error: cipher rule '%s' evaluated to:\n", t->rule); PrintCipherPreferenceList(ctx->cipher_list); return false; } } if (t->expected[i].id != 0) { fprintf(stderr, "Error: cipher rule '%s' evaluated to:\n", t->rule); PrintCipherPreferenceList(ctx->cipher_list); return false; } return true; } static bool TestRuleDoesNotIncludeNull(const char *rule) { ScopedSSL_CTX ctx(SSL_CTX_new(SSLv23_server_method())); if (!ctx) { return false; } if (!SSL_CTX_set_cipher_list(ctx.get(), rule)) { fprintf(stderr, "Error: cipher rule '%s' failed\n", rule); return false; } for (size_t i = 0; i < sk_SSL_CIPHER_num(ctx->cipher_list->ciphers); i++) { if (SSL_CIPHER_is_NULL(sk_SSL_CIPHER_value(ctx->cipher_list->ciphers, i))) { fprintf(stderr, "Error: cipher rule '%s' includes NULL\n",rule); return false; } } return true; } static bool TestCipherRules() { for (size_t i = 0; kCipherTests[i].rule != NULL; i++) { if (!TestCipherRule(&kCipherTests[i])) { return false; } } for (size_t i = 0; kBadRules[i] != NULL; i++) { ScopedSSL_CTX ctx(SSL_CTX_new(SSLv23_server_method())); if (!ctx) { return false; } if (SSL_CTX_set_cipher_list(ctx.get(), kBadRules[i])) { fprintf(stderr, "Cipher rule '%s' unexpectedly succeeded\n", kBadRules[i]); return false; } ERR_clear_error(); } for (size_t i = 0; kMustNotIncludeNull[i] != NULL; i++) { if (!TestRuleDoesNotIncludeNull(kMustNotIncludeNull[i])) { return false; } } return true; } // kOpenSSLSession is a serialized SSL_SESSION generated from openssl // s_client -sess_out. static const char kOpenSSLSession[] = "MIIFpQIBAQICAwMEAsAvBCAG5Q1ndq4Yfmbeo1zwLkNRKmCXGdNgWvGT3cskV0yQ" "kAQwJlrlzkAWBOWiLj/jJ76D7l+UXoizP2KI2C7I2FccqMmIfFmmkUy32nIJ0mZH" "IWoJoQYCBFRDO46iBAICASyjggR6MIIEdjCCA16gAwIBAgIIK9dUvsPWSlUwDQYJ" "KoZIhvcNAQEFBQAwSTELMAkGA1UEBhMCVVMxEzARBgNVBAoTCkdvb2dsZSBJbmMx" "JTAjBgNVBAMTHEdvb2dsZSBJbnRlcm5ldCBBdXRob3JpdHkgRzIwHhcNMTQxMDA4" "MTIwNzU3WhcNMTUwMTA2MDAwMDAwWjBoMQswCQYDVQQGEwJVUzETMBEGA1UECAwK" "Q2FsaWZvcm5pYTEWMBQGA1UEBwwNTW91bnRhaW4gVmlldzETMBEGA1UECgwKR29v" "Z2xlIEluYzEXMBUGA1UEAwwOd3d3Lmdvb2dsZS5jb20wggEiMA0GCSqGSIb3DQEB" "AQUAA4IBDwAwggEKAoIBAQCcKeLrplAC+Lofy8t/wDwtB6eu72CVp0cJ4V3lknN6" "huH9ct6FFk70oRIh/VBNBBz900jYy+7111Jm1b8iqOTQ9aT5C7SEhNcQFJvqzH3e" "MPkb6ZSWGm1yGF7MCQTGQXF20Sk/O16FSjAynU/b3oJmOctcycWYkY0ytS/k3LBu" "Id45PJaoMqjB0WypqvNeJHC3q5JjCB4RP7Nfx5jjHSrCMhw8lUMW4EaDxjaR9KDh" "PLgjsk+LDIySRSRDaCQGhEOWLJZVLzLo4N6/UlctCHEllpBUSvEOyFga52qroGjg" "rf3WOQ925MFwzd6AK+Ich0gDRg8sQfdLH5OuP1cfLfU1AgMBAAGjggFBMIIBPTAd" "BgNVHSUEFjAUBggrBgEFBQcDAQYIKwYBBQUHAwIwGQYDVR0RBBIwEIIOd3d3Lmdv" "b2dsZS5jb20waAYIKwYBBQUHAQEEXDBaMCsGCCsGAQUFBzAChh9odHRwOi8vcGtp" "Lmdvb2dsZS5jb20vR0lBRzIuY3J0MCsGCCsGAQUFBzABhh9odHRwOi8vY2xpZW50" "czEuZ29vZ2xlLmNvbS9vY3NwMB0GA1UdDgQWBBQ7a+CcxsZByOpc+xpYFcIbnUMZ" "hTAMBgNVHRMBAf8EAjAAMB8GA1UdIwQYMBaAFErdBhYbvPZotXb1gba7Yhq6WoEv" "MBcGA1UdIAQQMA4wDAYKKwYBBAHWeQIFATAwBgNVHR8EKTAnMCWgI6Ahhh9odHRw" "Oi8vcGtpLmdvb2dsZS5jb20vR0lBRzIuY3JsMA0GCSqGSIb3DQEBBQUAA4IBAQCa" "OXCBdoqUy5bxyq+Wrh1zsyyCFim1PH5VU2+yvDSWrgDY8ibRGJmfff3r4Lud5kal" "dKs9k8YlKD3ITG7P0YT/Rk8hLgfEuLcq5cc0xqmE42xJ+Eo2uzq9rYorc5emMCxf" "5L0TJOXZqHQpOEcuptZQ4OjdYMfSxk5UzueUhA3ogZKRcRkdB3WeWRp+nYRhx4St" "o2rt2A0MKmY9165GHUqMK9YaaXHDXqBu7Sefr1uSoAP9gyIJKeihMivsGqJ1TD6Z" "cc6LMe+dN2P8cZEQHtD1y296ul4Mivqk3jatUVL8/hCwgch9A8O4PGZq9WqBfEWm" "IyHh1dPtbg1lOXdYCWtjpAIEAKUDAgEUqQUCAwGJwKqBpwSBpBwUQvoeOk0Kg36S" "YTcLEkXqKwOBfF9vE4KX0NxeLwjcDTpsuh3qXEaZ992r1N38VDcyS6P7I6HBYN9B" "sNHM362zZnY27GpTw+Kwd751CLoXFPoaMOe57dbBpXoro6Pd3BTbf/Tzr88K06yE" "OTDKPNj3+inbMaVigtK4PLyPq+Topyzvx9USFgRvyuoxn0Hgb+R0A3j6SLRuyOdA" "i4gv7Y5oliyn"; // kCustomSession is a custom serialized SSL_SESSION generated by // filling in missing fields from |kOpenSSLSession|. This includes // providing |peer_sha256|, so |peer| is not serialized. static const char kCustomSession[] = "MIIBdgIBAQICAwMEAsAvBCAG5Q1ndq4Yfmbeo1zwLkNRKmCXGdNgWvGT3cskV0yQ" "kAQwJlrlzkAWBOWiLj/jJ76D7l+UXoizP2KI2C7I2FccqMmIfFmmkUy32nIJ0mZH" "IWoJoQYCBFRDO46iBAICASykAwQBAqUDAgEUphAEDnd3dy5nb29nbGUuY29tqAcE" "BXdvcmxkqQUCAwGJwKqBpwSBpBwUQvoeOk0Kg36SYTcLEkXqKwOBfF9vE4KX0Nxe" "LwjcDTpsuh3qXEaZ992r1N38VDcyS6P7I6HBYN9BsNHM362zZnY27GpTw+Kwd751" "CLoXFPoaMOe57dbBpXoro6Pd3BTbf/Tzr88K06yEOTDKPNj3+inbMaVigtK4PLyP" "q+Topyzvx9USFgRvyuoxn0Hgb+R0A3j6SLRuyOdAi4gv7Y5oliynrSIEIAYGBgYG" "BgYGBgYGBgYGBgYGBgYGBgYGBgYGBgYGBgYGrgMEAQevAwQBBLADBAEF"; // kBoringSSLSession is a serialized SSL_SESSION generated from bssl client. static const char kBoringSSLSession[] = "MIIRwQIBAQICAwMEAsAvBCDdoGxGK26mR+8lM0uq6+k9xYuxPnwAjpcF9n0Yli9R" "kQQwbyshfWhdi5XQ1++7n2L1qqrcVlmHBPpr6yknT/u4pUrpQB5FZ7vqvNn8MdHf" "9rWgoQYCBFXgs7uiBAICHCCjggR6MIIEdjCCA16gAwIBAgIIf+yfD7Y6UicwDQYJ" 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"gBRI5mj5K9KylddH2CMgEE8zmJCf1DAdBgNVHQ4EFgQUwHqYaI2J+6sFZAwRfap9" "ZbjKzE4wDwYDVR0TAQH/BAUwAwEB/zAOBgNVHQ8BAf8EBAMCAQYwOgYDVR0fBDMw" "MTAvoC2gK4YpaHR0cDovL2NybC5nZW90cnVzdC5jb20vY3Jscy9zZWN1cmVjYS5j" "cmwwTgYDVR0gBEcwRTBDBgRVHSAAMDswOQYIKwYBBQUHAgEWLWh0dHBzOi8vd3d3" "Lmdlb3RydXN0LmNvbS9yZXNvdXJjZXMvcmVwb3NpdG9yeTANBgkqhkiG9w0BAQUF" "AAOBgQB24RJuTksWEoYwBrKBCM/wCMfHcX5m7sLt1Dsf//DwyE7WQziwuTB9GNBV" "g6JqyzYRnOhIZqNtf7gT1Ef+i1pcc/yu2RsyGTirlzQUqpbS66McFAhJtrvlke+D" "NusdVm/K2rxzY5Dkf3s+Iss9B+1fOHSc4wNQTqGvmO5h8oQ/Eg=="; // kBadSessionExtraField is a custom serialized SSL_SESSION generated by replacing // the final (optional) element of |kCustomSession| with tag number 30. static const char kBadSessionExtraField[] = "MIIBdgIBAQICAwMEAsAvBCAG5Q1ndq4Yfmbeo1zwLkNRKmCXGdNgWvGT3cskV0yQ" "kAQwJlrlzkAWBOWiLj/jJ76D7l+UXoizP2KI2C7I2FccqMmIfFmmkUy32nIJ0mZH" "IWoJoQYCBFRDO46iBAICASykAwQBAqUDAgEUphAEDnd3dy5nb29nbGUuY29tqAcE" "BXdvcmxkqQUCAwGJwKqBpwSBpBwUQvoeOk0Kg36SYTcLEkXqKwOBfF9vE4KX0Nxe" "LwjcDTpsuh3qXEaZ992r1N38VDcyS6P7I6HBYN9BsNHM362zZnY27GpTw+Kwd751" "CLoXFPoaMOe57dbBpXoro6Pd3BTbf/Tzr88K06yEOTDKPNj3+inbMaVigtK4PLyP" "q+Topyzvx9USFgRvyuoxn0Hgb+R0A3j6SLRuyOdAi4gv7Y5oliynrSIEIAYGBgYG" "BgYGBgYGBgYGBgYGBgYGBgYGBgYGBgYGBgYGrgMEAQevAwQBBL4DBAEF"; // kBadSessionVersion is a custom serialized SSL_SESSION generated by replacing // the version of |kCustomSession| with 2. static const char kBadSessionVersion[] = "MIIBdgIBAgICAwMEAsAvBCAG5Q1ndq4Yfmbeo1zwLkNRKmCXGdNgWvGT3cskV0yQ" "kAQwJlrlzkAWBOWiLj/jJ76D7l+UXoizP2KI2C7I2FccqMmIfFmmkUy32nIJ0mZH" "IWoJoQYCBFRDO46iBAICASykAwQBAqUDAgEUphAEDnd3dy5nb29nbGUuY29tqAcE" "BXdvcmxkqQUCAwGJwKqBpwSBpBwUQvoeOk0Kg36SYTcLEkXqKwOBfF9vE4KX0Nxe" "LwjcDTpsuh3qXEaZ992r1N38VDcyS6P7I6HBYN9BsNHM362zZnY27GpTw+Kwd751" "CLoXFPoaMOe57dbBpXoro6Pd3BTbf/Tzr88K06yEOTDKPNj3+inbMaVigtK4PLyP" "q+Topyzvx9USFgRvyuoxn0Hgb+R0A3j6SLRuyOdAi4gv7Y5oliynrSIEIAYGBgYG" "BgYGBgYGBgYGBgYGBgYGBgYGBgYGBgYGBgYGrgMEAQevAwQBBLADBAEF"; // kBadSessionTrailingData is a custom serialized SSL_SESSION with trailing data // appended. static const char kBadSessionTrailingData[] = "MIIBdgIBAQICAwMEAsAvBCAG5Q1ndq4Yfmbeo1zwLkNRKmCXGdNgWvGT3cskV0yQ" "kAQwJlrlzkAWBOWiLj/jJ76D7l+UXoizP2KI2C7I2FccqMmIfFmmkUy32nIJ0mZH" "IWoJoQYCBFRDO46iBAICASykAwQBAqUDAgEUphAEDnd3dy5nb29nbGUuY29tqAcE" "BXdvcmxkqQUCAwGJwKqBpwSBpBwUQvoeOk0Kg36SYTcLEkXqKwOBfF9vE4KX0Nxe" "LwjcDTpsuh3qXEaZ992r1N38VDcyS6P7I6HBYN9BsNHM362zZnY27GpTw+Kwd751" "CLoXFPoaMOe57dbBpXoro6Pd3BTbf/Tzr88K06yEOTDKPNj3+inbMaVigtK4PLyP" "q+Topyzvx9USFgRvyuoxn0Hgb+R0A3j6SLRuyOdAi4gv7Y5oliynrSIEIAYGBgYG" "BgYGBgYGBgYGBgYGBgYGBgYGBgYGBgYGBgYGrgMEAQevAwQBBLADBAEFAAAA"; static bool DecodeBase64(std::vector *out, const char *in) { size_t len; if (!EVP_DecodedLength(&len, strlen(in))) { fprintf(stderr, "EVP_DecodedLength failed\n"); return false; } out->resize(len); if (!EVP_DecodeBase64(bssl::vector_data(out), &len, len, (const uint8_t *)in, strlen(in))) { fprintf(stderr, "EVP_DecodeBase64 failed\n"); return false; } out->resize(len); return true; } static bool TestSSL_SESSIONEncoding(const char *input_b64) { const uint8_t *cptr; uint8_t *ptr; // Decode the input. std::vector input; if (!DecodeBase64(&input, input_b64)) { return false; } // Verify the SSL_SESSION decodes. ScopedSSL_SESSION session(SSL_SESSION_from_bytes(bssl::vector_data(&input), input.size())); if (!session) { fprintf(stderr, "SSL_SESSION_from_bytes failed\n"); return false; } // Verify the SSL_SESSION encoding round-trips. size_t encoded_len; ScopedOpenSSLBytes encoded; uint8_t *encoded_raw; if (!SSL_SESSION_to_bytes(session.get(), &encoded_raw, &encoded_len)) { fprintf(stderr, "SSL_SESSION_to_bytes failed\n"); return false; } encoded.reset(encoded_raw); if (encoded_len != input.size() || memcmp(bssl::vector_data(&input), encoded.get(), input.size()) != 0) { fprintf(stderr, "SSL_SESSION_to_bytes did not round-trip\n"); hexdump(stderr, "Before: ", input.data(), input.size()); hexdump(stderr, "After: ", encoded_raw, encoded_len); return false; } // Verify the SSL_SESSION also decodes with the legacy API. cptr = bssl::vector_data(&input); session.reset(d2i_SSL_SESSION(NULL, &cptr, input.size())); if (!session || cptr != bssl::vector_data(&input) + input.size()) { fprintf(stderr, "d2i_SSL_SESSION failed\n"); return false; } // Verify the SSL_SESSION encoding round-trips via the legacy API. int len = i2d_SSL_SESSION(session.get(), NULL); if (len < 0 || (size_t)len != input.size()) { fprintf(stderr, "i2d_SSL_SESSION(NULL) returned invalid length\n"); return false; } encoded.reset((uint8_t *)OPENSSL_malloc(input.size())); if (!encoded) { fprintf(stderr, "malloc failed\n"); return false; } ptr = encoded.get(); len = i2d_SSL_SESSION(session.get(), &ptr); if (len < 0 || (size_t)len != input.size()) { fprintf(stderr, "i2d_SSL_SESSION returned invalid length\n"); return false; } if (ptr != encoded.get() + input.size()) { fprintf(stderr, "i2d_SSL_SESSION did not advance ptr correctly\n"); return false; } if (memcmp(bssl::vector_data(&input), encoded.get(), input.size()) != 0) { fprintf(stderr, "i2d_SSL_SESSION did not round-trip\n"); return false; } return true; } static bool TestBadSSL_SESSIONEncoding(const char *input_b64) { std::vector input; if (!DecodeBase64(&input, input_b64)) { return false; } // Verify that the SSL_SESSION fails to decode. ScopedSSL_SESSION session(SSL_SESSION_from_bytes(bssl::vector_data(&input), input.size())); if (session) { fprintf(stderr, "SSL_SESSION_from_bytes unexpectedly succeeded\n"); return false; } ERR_clear_error(); return true; } static bool TestDefaultVersion(uint16_t version, const SSL_METHOD *(*method)(void)) { ScopedSSL_CTX ctx(SSL_CTX_new(method())); if (!ctx) { return false; } return ctx->min_version == version && ctx->max_version == version; } static bool CipherGetRFCName(std::string *out, uint16_t value) { const SSL_CIPHER *cipher = SSL_get_cipher_by_value(value); if (cipher == NULL) { return false; } ScopedOpenSSLString rfc_name(SSL_CIPHER_get_rfc_name(cipher)); if (!rfc_name) { return false; } out->assign(rfc_name.get()); return true; } typedef struct { int id; const char *rfc_name; } CIPHER_RFC_NAME_TEST; static const CIPHER_RFC_NAME_TEST kCipherRFCNameTests[] = { { SSL3_CK_RSA_DES_192_CBC3_SHA, "TLS_RSA_WITH_3DES_EDE_CBC_SHA" }, { SSL3_CK_RSA_RC4_128_MD5, "TLS_RSA_WITH_RC4_MD5" }, { TLS1_CK_RSA_WITH_AES_128_SHA, "TLS_RSA_WITH_AES_128_CBC_SHA" }, { TLS1_CK_DHE_RSA_WITH_AES_256_SHA, "TLS_DHE_RSA_WITH_AES_256_CBC_SHA" }, { TLS1_CK_DHE_RSA_WITH_AES_256_SHA256, "TLS_DHE_RSA_WITH_AES_256_CBC_SHA256" }, { TLS1_CK_ECDHE_RSA_WITH_AES_128_SHA256, "TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256" }, { TLS1_CK_ECDHE_RSA_WITH_AES_256_SHA384, "TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384" }, { TLS1_CK_ECDHE_RSA_WITH_AES_128_GCM_SHA256, "TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256" }, { TLS1_CK_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, "TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256" }, { TLS1_CK_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384, "TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384" }, { TLS1_CK_PSK_WITH_RC4_128_SHA, "TLS_PSK_WITH_RC4_SHA" }, { TLS1_CK_ECDHE_PSK_WITH_AES_128_CBC_SHA, "TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA" }, // These names are non-standard: { TLS1_CK_ECDHE_RSA_CHACHA20_POLY1305, "TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256" }, { TLS1_CK_ECDHE_ECDSA_CHACHA20_POLY1305, "TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256" }, }; static bool TestCipherGetRFCName(void) { for (size_t i = 0; i < sizeof(kCipherRFCNameTests) / sizeof(kCipherRFCNameTests[0]); i++) { const CIPHER_RFC_NAME_TEST *test = &kCipherRFCNameTests[i]; std::string rfc_name; if (!CipherGetRFCName(&rfc_name, test->id & 0xffff)) { fprintf(stderr, "SSL_CIPHER_get_rfc_name failed\n"); return false; } if (rfc_name != test->rfc_name) { fprintf(stderr, "SSL_CIPHER_get_rfc_name: got '%s', wanted '%s'\n", rfc_name.c_str(), test->rfc_name); return false; } } return true; } // CreateSessionWithTicket returns a sample |SSL_SESSION| with the ticket // replaced for one of length |ticket_len| or nullptr on failure. static ScopedSSL_SESSION CreateSessionWithTicket(size_t ticket_len) { std::vector der; if (!DecodeBase64(&der, kOpenSSLSession)) { return nullptr; } ScopedSSL_SESSION session(SSL_SESSION_from_bytes(bssl::vector_data(&der), der.size())); if (!session) { return nullptr; } // Swap out the ticket for a garbage one. OPENSSL_free(session->tlsext_tick); session->tlsext_tick = reinterpret_cast(OPENSSL_malloc(ticket_len)); if (session->tlsext_tick == nullptr) { return nullptr; } memset(session->tlsext_tick, 'a', ticket_len); session->tlsext_ticklen = ticket_len; return session; } // GetClientHelloLen creates a client SSL connection with a ticket of length // |ticket_len| and records the ClientHello. It returns the length of the // ClientHello, not including the record header, on success and zero on error. static size_t GetClientHelloLen(size_t ticket_len) { ScopedSSL_CTX ctx(SSL_CTX_new(TLS_method())); ScopedSSL_SESSION session = CreateSessionWithTicket(ticket_len); if (!ctx || !session) { return 0; } ScopedSSL ssl(SSL_new(ctx.get())); ScopedBIO bio(BIO_new(BIO_s_mem())); if (!ssl || !bio || !SSL_set_session(ssl.get(), session.get())) { return 0; } // Do not configure a reading BIO, but record what's written to a memory BIO. SSL_set_bio(ssl.get(), nullptr /* rbio */, BIO_up_ref(bio.get())); int ret = SSL_connect(ssl.get()); if (ret > 0) { // SSL_connect should fail without a BIO to write to. return 0; } ERR_clear_error(); const uint8_t *unused; size_t client_hello_len; if (!BIO_mem_contents(bio.get(), &unused, &client_hello_len) || client_hello_len <= SSL3_RT_HEADER_LENGTH) { return 0; } return client_hello_len - SSL3_RT_HEADER_LENGTH; } struct PaddingTest { size_t input_len, padded_len; }; static const PaddingTest kPaddingTests[] = { // ClientHellos of length below 0x100 do not require padding. {0xfe, 0xfe}, {0xff, 0xff}, // ClientHellos of length 0x100 through 0x1fb are padded up to 0x200. {0x100, 0x200}, {0x123, 0x200}, {0x1fb, 0x200}, // ClientHellos of length 0x1fc through 0x1ff get padded beyond 0x200. The // padding extension takes a minimum of four bytes plus one required content // byte. (To work around yet more server bugs, we avoid empty final // extensions.) {0x1fc, 0x201}, {0x1fd, 0x202}, {0x1fe, 0x203}, {0x1ff, 0x204}, // Finally, larger ClientHellos need no padding. {0x200, 0x200}, {0x201, 0x201}, }; static bool TestPaddingExtension() { // Sample a baseline length. size_t base_len = GetClientHelloLen(1); if (base_len == 0) { return false; } for (const PaddingTest &test : kPaddingTests) { if (base_len > test.input_len) { fprintf(stderr, "Baseline ClientHello too long.\n"); return false; } size_t padded_len = GetClientHelloLen(1 + test.input_len - base_len); if (padded_len != test.padded_len) { fprintf(stderr, "%u-byte ClientHello padded to %u bytes, not %u.\n", static_cast(test.input_len), static_cast(padded_len), static_cast(test.padded_len)); return false; } } return true; } // Test that |SSL_get_client_CA_list| echoes back the configured parameter even // before configuring as a server. static bool TestClientCAList() { ScopedSSL_CTX ctx(SSL_CTX_new(TLS_method())); if (!ctx) { return false; } ScopedSSL ssl(SSL_new(ctx.get())); if (!ssl) { return false; } STACK_OF(X509_NAME) *stack = sk_X509_NAME_new_null(); if (stack == nullptr) { return false; } // |SSL_set_client_CA_list| takes ownership. SSL_set_client_CA_list(ssl.get(), stack); return SSL_get_client_CA_list(ssl.get()) == stack; } int main() { SSL_library_init(); if (!TestCipherRules() || !TestSSL_SESSIONEncoding(kOpenSSLSession) || !TestSSL_SESSIONEncoding(kCustomSession) || !TestSSL_SESSIONEncoding(kBoringSSLSession) || !TestBadSSL_SESSIONEncoding(kBadSessionExtraField) || !TestBadSSL_SESSIONEncoding(kBadSessionVersion) || !TestBadSSL_SESSIONEncoding(kBadSessionTrailingData) || !TestDefaultVersion(0, &TLS_method) || !TestDefaultVersion(SSL3_VERSION, &SSLv3_method) || !TestDefaultVersion(TLS1_VERSION, &TLSv1_method) || !TestDefaultVersion(TLS1_1_VERSION, &TLSv1_1_method) || !TestDefaultVersion(TLS1_2_VERSION, &TLSv1_2_method) || !TestDefaultVersion(0, &DTLS_method) || !TestDefaultVersion(DTLS1_VERSION, &DTLSv1_method) || !TestDefaultVersion(DTLS1_2_VERSION, &DTLSv1_2_method) || !TestCipherGetRFCName() || !TestPaddingExtension() || !TestClientCAList()) { ERR_print_errors_fp(stderr); return 1; } printf("PASS\n"); return 0; }