|
- /* 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 <stdio.h>
- #include <string.h>
-
- #include <string>
- #include <vector>
-
- #include <openssl/base64.h>
- #include <openssl/bio.h>
- #include <openssl/err.h>
- #include <openssl/ssl.h>
-
- #include "test/scoped_types.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 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 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();
- }
-
- 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";
-
- // 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<uint8_t> *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<uint8_t> 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");
- 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<uint8_t> 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<uint8_t> 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<uint8_t*>(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<unsigned>(test.input_len),
- static_cast<unsigned>(padded_len),
- static_cast<unsigned>(test.padded_len));
- return false;
- }
- }
- return true;
- }
-
- int main(void) {
- SSL_library_init();
-
- if (!TestCipherRules() ||
- !TestSSL_SESSIONEncoding(kOpenSSLSession) ||
- !TestSSL_SESSIONEncoding(kCustomSession) ||
- !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()) {
- ERR_print_errors_fp(stderr);
- return 1;
- }
-
- printf("PASS\n");
- return 0;
- }
|