/* $OpenBSD: tlsexttest.c,v 1.92 2024/09/11 15:04:16 tb Exp $ */ /* * Copyright (c) 2017 Joel Sing * Copyright (c) 2017 Doug Hogan * Copyright (c) 2019 Bob Beck * Copyright (c) 2022 Theo Buehler * * Permission to use, copy, modify, and 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 "ssl_local.h" #include "bytestring.h" #include "ssl_tlsext.h" struct tls_extension_funcs { int (*needs)(SSL *s, uint16_t msg_type); int (*build)(SSL *s, uint16_t msg_type, CBB *cbb); int (*process)(SSL *s, uint16_t msg_type, CBS *cbs, int *alert); }; uint16_t tls_extension_type(const struct tls_extension *); const struct tls_extension *tls_extension_find(uint16_t, size_t *); const struct tls_extension_funcs *tlsext_funcs(const struct tls_extension *, int); int tlsext_linearize_build_order(SSL *); static int tls_extension_funcs(int type, const struct tls_extension_funcs **client_funcs, const struct tls_extension_funcs **server_funcs) { const struct tls_extension *ext; size_t idx; if ((ext = tls_extension_find(type, &idx)) == NULL) return 0; if ((*client_funcs = tlsext_funcs(ext, 0)) == NULL) return 0; if ((*server_funcs = tlsext_funcs(ext, 1)) == NULL) return 0; return 1; } static void hexdump(const unsigned char *buf, size_t len) { size_t i; for (i = 1; i <= len; i++) fprintf(stderr, " 0x%02hhx,%s", buf[i - 1], i % 8 ? "" : "\n"); fprintf(stderr, "\n"); } static void hexdump2(const uint16_t *buf, size_t len) { size_t i; for (i = 1; i <= len / 2; i++) fprintf(stderr, " 0x%04hx,%s", buf[i - 1], i % 8 ? "" : "\n"); fprintf(stderr, "\n"); } static void compare_data(const uint8_t *recv, size_t recv_len, const uint8_t *expect, size_t expect_len) { fprintf(stderr, "received:\n"); hexdump(recv, recv_len); fprintf(stderr, "test data:\n"); hexdump(expect, expect_len); } static void compare_data2(const uint16_t *recv, size_t recv_len, const uint16_t *expect, size_t expect_len) { fprintf(stderr, "received:\n"); hexdump2(recv, recv_len); fprintf(stderr, "test data:\n"); hexdump2(expect, expect_len); } #define FAIL(msg, ...) \ do { \ fprintf(stderr, "[%s:%d] FAIL: ", __FILE__, __LINE__); \ fprintf(stderr, msg, ##__VA_ARGS__); \ } while(0) /* * Supported Application-Layer Protocol Negotiation - RFC 7301 * * There are already extensive unit tests for this so this just * tests the state info. */ const uint8_t tlsext_alpn_multiple_protos_val[] = { /* opaque ProtocolName<1..2^8-1> -- 'http/1.1' */ 0x08, /* len */ 0x68, 0x74, 0x74, 0x70, 0x2f, 0x31, 0x2e, 0x31, /* opaque ProtocolName<1..2^8-1> -- 'stun.nat' */ 0x09, /* len */ 0x73, 0x74, 0x75, 0x6e, 0x2e, 0x74, 0x75, 0x72, 0x6e }; const uint8_t tlsext_alpn_multiple_protos[] = { /* ProtocolName protocol_name_list<2..2^16-1> -- ALPN names */ 0x00, 0x13, /* len of all names */ /* opaque ProtocolName<1..2^8-1> -- 'http/1.1' */ 0x08, /* len */ 0x68, 0x74, 0x74, 0x70, 0x2f, 0x31, 0x2e, 0x31, /* opaque ProtocolName<1..2^8-1> -- 'stun.nat' */ 0x09, /* len */ 0x73, 0x74, 0x75, 0x6e, 0x2e, 0x74, 0x75, 0x72, 0x6e }; const uint8_t tlsext_alpn_single_proto_val[] = { /* opaque ProtocolName<1..2^8-1> -- 'http/1.1' */ 0x08, /* len */ 0x68, 0x74, 0x74, 0x70, 0x2f, 0x31, 0x2e, 0x31 }; const uint8_t tlsext_alpn_single_proto_name[] = { 0x68, 0x74, 0x74, 0x70, 0x2f, 0x31, 0x2e, 0x31 /* 'http/1.1' */ }; const uint8_t tlsext_alpn_single_proto[] = { /* ProtocolName protocol_name_list<2..2^16-1> -- ALPN names */ 0x00, 0x09, /* len of all names */ /* opaque ProtocolName<1..2^8-1> -- 'http/1.1' */ 0x08, /* len */ 0x68, 0x74, 0x74, 0x70, 0x2f, 0x31, 0x2e, 0x31 }; #define TLSEXT_TYPE_alpn TLSEXT_TYPE_application_layer_protocol_negotiation static int test_tlsext_alpn_client(void) { SSL_CTX *ssl_ctx = NULL; SSL *ssl = NULL; const struct tls_extension_funcs *client_funcs; const struct tls_extension_funcs *server_funcs; uint8_t *data = NULL; CBB cbb; CBS cbs; int failure, alert; size_t dlen; failure = 1; if (!CBB_init(&cbb, 0)) errx(1, "Failed to create CBB"); if ((ssl_ctx = SSL_CTX_new(TLS_client_method())) == NULL) errx(1, "failed to create SSL_CTX"); if ((ssl = SSL_new(ssl_ctx)) == NULL) errx(1, "failed to create SSL"); if (!tls_extension_funcs(TLSEXT_TYPE_alpn, &client_funcs, &server_funcs)) errx(1, "failed to fetch ALPN funcs"); /* By default, we don't need this */ if (client_funcs->needs(ssl, SSL_TLSEXT_MSG_CH)) { FAIL("client should not need ALPN by default\n"); goto err; } /* * Prereqs: * 1) Set s->alpn_client_proto_list * - Using SSL_set_alpn_protos() * 2) We have not finished or renegotiated. * - s->s3->tmp.finish_md_len == 0 */ if (SSL_set_alpn_protos(ssl, tlsext_alpn_single_proto_val, sizeof(tlsext_alpn_single_proto_val)) != 0) { FAIL("should be able to set ALPN to http/1.1\n"); goto err; } if (!client_funcs->needs(ssl, SSL_TLSEXT_MSG_CH)) { FAIL("client should need ALPN by default\n"); goto err; } /* Make sure we can build the client with a single proto. */ if (!client_funcs->build(ssl, SSL_TLSEXT_MSG_CH, &cbb)) { FAIL("client failed to build ALPN\n"); goto err; } if (!CBB_finish(&cbb, &data, &dlen)) errx(1, "failed to finish CBB"); if (dlen != sizeof(tlsext_alpn_single_proto)) { FAIL("got client ALPN with length %zu, " "want length %zu\n", dlen, sizeof(tlsext_alpn_single_proto)); compare_data(data, dlen, tlsext_alpn_single_proto, sizeof(tlsext_alpn_single_proto)); goto err; } if (memcmp(data, tlsext_alpn_single_proto, dlen) != 0) { FAIL("client ALPN differs:\n"); compare_data(data, dlen, tlsext_alpn_single_proto, sizeof(tlsext_alpn_single_proto)); goto err; } CBB_cleanup(&cbb); if (!CBB_init(&cbb, 0)) errx(1, "Failed to create CBB"); free(data); data = NULL; /* Make sure we can parse the single proto. */ CBS_init(&cbs, tlsext_alpn_single_proto, sizeof(tlsext_alpn_single_proto)); if (!server_funcs->process(ssl, SSL_TLSEXT_MSG_CH, &cbs, &alert)) { FAIL("failed to parse ALPN\n"); goto err; } if (CBS_len(&cbs) != 0) { FAIL("extension data remaining\n"); goto err; } if (ssl->alpn_client_proto_list_len != sizeof(tlsext_alpn_single_proto_val)) { FAIL("got client ALPN with length %zu, " "want length %zu\n", dlen, sizeof(tlsext_alpn_single_proto_val)); compare_data(ssl->alpn_client_proto_list, ssl->alpn_client_proto_list_len, tlsext_alpn_single_proto_val, sizeof(tlsext_alpn_single_proto_val)); goto err; } if (memcmp(ssl->alpn_client_proto_list, tlsext_alpn_single_proto_val, sizeof(tlsext_alpn_single_proto_val)) != 0) { FAIL("client ALPN differs:\n"); compare_data(data, dlen, tlsext_alpn_single_proto_val, sizeof(tlsext_alpn_single_proto_val)); goto err; } /* Make sure we can build the clienthello with multiple entries. */ if (SSL_set_alpn_protos(ssl, tlsext_alpn_multiple_protos_val, sizeof(tlsext_alpn_multiple_protos_val)) != 0) { FAIL("should be able to set ALPN to http/1.1\n"); goto err; } if (!client_funcs->needs(ssl, SSL_TLSEXT_MSG_CH)) { FAIL("client should need ALPN by now\n"); goto err; } if (!client_funcs->build(ssl, SSL_TLSEXT_MSG_CH, &cbb)) { FAIL("client failed to build ALPN\n"); goto err; } if (!CBB_finish(&cbb, &data, &dlen)) errx(1, "failed to finish CBB"); if (dlen != sizeof(tlsext_alpn_multiple_protos)) { FAIL("got client ALPN with length %zu, " "want length %zu\n", dlen, sizeof(tlsext_alpn_multiple_protos)); compare_data(data, dlen, tlsext_alpn_multiple_protos, sizeof(tlsext_alpn_multiple_protos)); goto err; } if (memcmp(data, tlsext_alpn_multiple_protos, dlen) != 0) { FAIL("client ALPN differs:\n"); compare_data(data, dlen, tlsext_alpn_multiple_protos, sizeof(tlsext_alpn_multiple_protos)); goto err; } /* Make sure we can parse multiple protos */ CBS_init(&cbs, tlsext_alpn_multiple_protos, sizeof(tlsext_alpn_multiple_protos)); if (!server_funcs->process(ssl, SSL_TLSEXT_MSG_CH, &cbs, &alert)) { FAIL("failed to parse ALPN\n"); goto err; } if (CBS_len(&cbs) != 0) { FAIL("extension data remaining\n"); goto err; } if (ssl->alpn_client_proto_list_len != sizeof(tlsext_alpn_multiple_protos_val)) { FAIL("got client ALPN with length %zu, " "want length %zu\n", dlen, sizeof(tlsext_alpn_multiple_protos_val)); compare_data(ssl->alpn_client_proto_list, ssl->alpn_client_proto_list_len, tlsext_alpn_multiple_protos_val, sizeof(tlsext_alpn_multiple_protos_val)); goto err; } if (memcmp(ssl->alpn_client_proto_list, tlsext_alpn_multiple_protos_val, sizeof(tlsext_alpn_multiple_protos_val)) != 0) { FAIL("client ALPN differs:\n"); compare_data(data, dlen, tlsext_alpn_multiple_protos_val, sizeof(tlsext_alpn_multiple_protos_val)); goto err; } /* Make sure we can remove the list and avoid ALPN */ free(ssl->alpn_client_proto_list); ssl->alpn_client_proto_list = NULL; ssl->alpn_client_proto_list_len = 0; if (client_funcs->needs(ssl, SSL_TLSEXT_MSG_CH)) { FAIL("client should need ALPN by default\n"); goto err; } failure = 0; err: CBB_cleanup(&cbb); SSL_CTX_free(ssl_ctx); SSL_free(ssl); free(data); return (failure); } static int test_tlsext_alpn_server(void) { SSL_CTX *ssl_ctx = NULL; SSL *ssl = NULL; const struct tls_extension_funcs *client_funcs; const struct tls_extension_funcs *server_funcs; uint8_t *data = NULL; CBB cbb; CBS cbs; int failure, alert; size_t dlen; failure = 1; if (!CBB_init(&cbb, 0)) errx(1, "Failed to create CBB"); if ((ssl_ctx = SSL_CTX_new(TLS_server_method())) == NULL) errx(1, "failed to create SSL_CTX"); if ((ssl = SSL_new(ssl_ctx)) == NULL) errx(1, "failed to create SSL"); if (!tls_extension_funcs(TLSEXT_TYPE_alpn, &client_funcs, &server_funcs)) errx(1, "failed to fetch ALPN funcs"); /* By default, ALPN isn't needed. */ if (server_funcs->needs(ssl, SSL_TLSEXT_MSG_SH)) { FAIL("server should not need ALPN by default\n"); goto err; } /* * The server has a single ALPN selection which is set by * SSL_CTX_set_alpn_select_cb() and calls SSL_select_next_proto(). * * This will be a plain name and separate length. */ if ((ssl->s3->alpn_selected = malloc(sizeof(tlsext_alpn_single_proto_name))) == NULL) { errx(1, "failed to malloc"); } memcpy(ssl->s3->alpn_selected, tlsext_alpn_single_proto_name, sizeof(tlsext_alpn_single_proto_name)); ssl->s3->alpn_selected_len = sizeof(tlsext_alpn_single_proto_name); if (!server_funcs->needs(ssl, SSL_TLSEXT_MSG_SH)) { FAIL("server should need ALPN after a protocol is selected\n"); goto err; } /* Make sure we can build a server with one protocol */ if (!server_funcs->build(ssl, SSL_TLSEXT_MSG_SH, &cbb)) { FAIL("server should be able to build a response\n"); goto err; } if (!CBB_finish(&cbb, &data, &dlen)) errx(1, "failed to finish CBB"); if (dlen != sizeof(tlsext_alpn_single_proto)) { FAIL("got client ALPN with length %zu, " "want length %zu\n", dlen, sizeof(tlsext_alpn_single_proto)); compare_data(data, dlen, tlsext_alpn_single_proto, sizeof(tlsext_alpn_single_proto)); goto err; } if (memcmp(data, tlsext_alpn_single_proto, dlen) != 0) { FAIL("client ALPN differs:\n"); compare_data(data, dlen, tlsext_alpn_single_proto, sizeof(tlsext_alpn_single_proto)); goto err; } CBB_cleanup(&cbb); if (!CBB_init(&cbb, 0)) errx(1, "Failed to create CBB"); free(data); data = NULL; /* Make sure we can parse the single proto. */ CBS_init(&cbs, tlsext_alpn_single_proto, sizeof(tlsext_alpn_single_proto)); /* Shouldn't be able to parse without requesting */ if (client_funcs->process(ssl, SSL_TLSEXT_MSG_SH, &cbs, &alert)) { FAIL("Should only parse server if we requested it\n"); goto err; } /* Should be able to parse once requested. */ if (SSL_set_alpn_protos(ssl, tlsext_alpn_single_proto_val, sizeof(tlsext_alpn_single_proto_val)) != 0) { FAIL("should be able to set ALPN to http/1.1\n"); goto err; } if (!client_funcs->process(ssl, SSL_TLSEXT_MSG_SH, &cbs, &alert)) { FAIL("Should be able to parse server when we request it\n"); goto err; } if (CBS_len(&cbs) != 0) { FAIL("extension data remaining\n"); goto err; } if (ssl->s3->alpn_selected_len != sizeof(tlsext_alpn_single_proto_name)) { FAIL("got server ALPN with length %zu, " "want length %zu\n", dlen, sizeof(tlsext_alpn_single_proto_name)); compare_data(ssl->s3->alpn_selected, ssl->s3->alpn_selected_len, tlsext_alpn_single_proto_name, sizeof(tlsext_alpn_single_proto_name)); goto err; } if (memcmp(ssl->s3->alpn_selected, tlsext_alpn_single_proto_name, sizeof(tlsext_alpn_single_proto_name)) != 0) { FAIL("server ALPN differs:\n"); compare_data(ssl->s3->alpn_selected, ssl->s3->alpn_selected_len, tlsext_alpn_single_proto_name, sizeof(tlsext_alpn_single_proto_name)); goto err; } /* * We should NOT be able to build a server with multiple * protocol names. However, the existing code did not check for this * case because it is passed in as an encoded value. */ /* Make sure we can remove the list and avoid ALPN */ free(ssl->s3->alpn_selected); ssl->s3->alpn_selected = NULL; ssl->s3->alpn_selected_len = 0; if (server_funcs->needs(ssl, SSL_TLSEXT_MSG_SH)) { FAIL("server should not need ALPN by default\n"); goto err; } failure = 0; err: CBB_cleanup(&cbb); SSL_CTX_free(ssl_ctx); SSL_free(ssl); free(data); return (failure); } /* * Supported Elliptic Curves - RFC 4492 section 5.1.1. * * This extension is only used by the client. */ static const uint8_t tlsext_supportedgroups_client_default[] = { 0x00, 0x08, 0x00, 0x1d, /* X25519 (29) */ 0x00, 0x17, /* secp256r1 (23) */ 0x00, 0x18, /* secp384r1 (24) */ 0x00, 0x19, /* secp521r1 (25) */ }; static const uint16_t tlsext_supportedgroups_client_secp384r1_val[] = { 0x0018 /* tls1_ec_nid2group_id(NID_secp384r1) */ }; static const uint8_t tlsext_supportedgroups_client_secp384r1[] = { 0x00, 0x02, 0x00, 0x18 /* secp384r1 (24) */ }; /* Example from RFC 4492 section 5.1.1 */ static const uint16_t tlsext_supportedgroups_client_nistp192and224_val[] = { 0x0013, /* tls1_ec_nid2group_id(NID_X9_62_prime192v1) */ 0x0015 /* tls1_ec_nid2group_id(NID_secp224r1) */ }; static const uint8_t tlsext_supportedgroups_client_nistp192and224[] = { 0x00, 0x04, 0x00, 0x13, /* secp192r1 aka NIST P-192 */ 0x00, 0x15 /* secp224r1 aka NIST P-224 */ }; static int test_tlsext_supportedgroups_client(void) { unsigned char *data = NULL; SSL_CTX *ssl_ctx = NULL; SSL *ssl = NULL; const struct tls_extension_funcs *client_funcs; const struct tls_extension_funcs *server_funcs; size_t dlen; int failure, alert; CBB cbb; CBS cbs; failure = 1; if (!CBB_init(&cbb, 0)) errx(1, "failed to create CBB"); if ((ssl_ctx = SSL_CTX_new(TLS_client_method())) == NULL) errx(1, "failed to create SSL_CTX"); if ((ssl = SSL_new(ssl_ctx)) == NULL) errx(1, "failed to create SSL"); if (!tls_extension_funcs(TLSEXT_TYPE_supported_groups, &client_funcs, &server_funcs)) errx(1, "failed to fetch supported groups funcs"); /* * Default ciphers include EC so we need it by default. */ if (!client_funcs->needs(ssl, SSL_TLSEXT_MSG_CH)) { FAIL("client should need Ellipticcurves for default " "ciphers\n"); goto err; } /* * Exclude cipher suites so we can test not including it. */ if (!SSL_set_cipher_list(ssl, "TLSv1.2:!ECDHE:!ECDSA")) { FAIL("client should be able to set cipher list\n"); goto err; } if (client_funcs->needs(ssl, SSL_TLSEXT_MSG_CH)) { FAIL("client should not need Ellipticcurves\n"); goto err; } /* * Use libtls default for the rest of the testing */ if (!SSL_set_cipher_list(ssl, "TLSv1.2+AEAD+ECDHE")) { FAIL("client should be able to set cipher list\n"); goto err; } if (!client_funcs->needs(ssl, SSL_TLSEXT_MSG_CH)) { FAIL("client should need Ellipticcurves\n"); goto err; } /* * Test with a session secp384r1. The default is used instead. */ if ((ssl->session = SSL_SESSION_new()) == NULL) errx(1, "failed to create session"); if ((ssl->session->tlsext_supportedgroups = malloc(sizeof(uint16_t))) == NULL) { FAIL("client could not malloc\n"); goto err; } if (!tls1_ec_nid2group_id(NID_secp384r1, &ssl->session->tlsext_supportedgroups[0])) goto err; ssl->session->tlsext_supportedgroups_length = 1; if (!client_funcs->needs(ssl, SSL_TLSEXT_MSG_CH)) { FAIL("client should need Ellipticcurves\n"); goto err; } if (!client_funcs->build(ssl, SSL_TLSEXT_MSG_CH, &cbb)) { FAIL("client failed to build Ellipticcurves\n"); goto err; } if (!CBB_finish(&cbb, &data, &dlen)) errx(1, "failed to finish CBB"); if (dlen != sizeof(tlsext_supportedgroups_client_default)) { FAIL("got client Ellipticcurves with length %zu, " "want length %zu\n", dlen, sizeof(tlsext_supportedgroups_client_default)); compare_data(data, dlen, tlsext_supportedgroups_client_default, sizeof(tlsext_supportedgroups_client_default)); goto err; } if (memcmp(data, tlsext_supportedgroups_client_default, dlen) != 0) { FAIL("client Ellipticcurves differs:\n"); compare_data(data, dlen, tlsext_supportedgroups_client_default, sizeof(tlsext_supportedgroups_client_default)); goto err; } /* * Test parsing secp384r1 */ CBB_cleanup(&cbb); if (!CBB_init(&cbb, 0)) errx(1, "Failed to create CBB"); free(data); data = NULL; SSL_SESSION_free(ssl->session); if ((ssl->session = SSL_SESSION_new()) == NULL) errx(1, "failed to create session"); CBS_init(&cbs, tlsext_supportedgroups_client_secp384r1, sizeof(tlsext_supportedgroups_client_secp384r1)); if (!server_funcs->process(ssl, SSL_TLSEXT_MSG_CH, &cbs, &alert)) { FAIL("failed to parse client Ellipticcurves\n"); goto err; } if (CBS_len(&cbs) != 0) { FAIL("extension data remaining\n"); goto err; } if (ssl->session->tlsext_supportedgroups_length != sizeof(tlsext_supportedgroups_client_secp384r1_val) / sizeof(uint16_t)) { FAIL("no tlsext_ellipticcurves from client " "Ellipticcurves\n"); goto err; } if (memcmp(ssl->session->tlsext_supportedgroups, tlsext_supportedgroups_client_secp384r1_val, sizeof(tlsext_supportedgroups_client_secp384r1_val)) != 0) { FAIL("client had an incorrect Ellipticcurves " "entry\n"); compare_data2(ssl->session->tlsext_supportedgroups, ssl->session->tlsext_supportedgroups_length * 2, tlsext_supportedgroups_client_secp384r1_val, sizeof(tlsext_supportedgroups_client_secp384r1_val)); goto err; } /* * Use a custom order. */ CBB_cleanup(&cbb); if (!CBB_init(&cbb, 0)) errx(1, "Failed to create CBB"); SSL_SESSION_free(ssl->session); if ((ssl->session = SSL_SESSION_new()) == NULL) errx(1, "failed to create session"); if ((ssl->tlsext_supportedgroups = malloc(sizeof(uint16_t) * 2)) == NULL) { FAIL("client could not malloc\n"); goto err; } if (!tls1_ec_nid2group_id(NID_X9_62_prime192v1, &ssl->tlsext_supportedgroups[0])) goto err; if (!tls1_ec_nid2group_id(NID_secp224r1, &ssl->tlsext_supportedgroups[1])) goto err; ssl->tlsext_supportedgroups_length = 2; if (!client_funcs->needs(ssl, SSL_TLSEXT_MSG_CH)) { FAIL("client should need Ellipticcurves\n"); goto err; } if (!client_funcs->build(ssl, SSL_TLSEXT_MSG_CH, &cbb)) { FAIL("client failed to build Ellipticcurves\n"); goto err; } if (!CBB_finish(&cbb, &data, &dlen)) errx(1, "failed to finish CBB"); if (dlen != sizeof(tlsext_supportedgroups_client_nistp192and224)) { FAIL("got client Ellipticcurves with length %zu, " "want length %zu\n", dlen, sizeof(tlsext_supportedgroups_client_nistp192and224)); fprintf(stderr, "received:\n"); hexdump(data, dlen); fprintf(stderr, "test data:\n"); hexdump(tlsext_supportedgroups_client_nistp192and224, sizeof(tlsext_supportedgroups_client_nistp192and224)); goto err; } if (memcmp(data, tlsext_supportedgroups_client_nistp192and224, dlen) != 0) { FAIL("client Ellipticcurves differs:\n"); fprintf(stderr, "received:\n"); hexdump(data, dlen); fprintf(stderr, "test data:\n"); hexdump(tlsext_supportedgroups_client_nistp192and224, sizeof(tlsext_supportedgroups_client_nistp192and224)); goto err; } /* * Parse non-default curves to session. */ CBB_cleanup(&cbb); if (!CBB_init(&cbb, 0)) errx(1, "Failed to create CBB"); free(data); data = NULL; SSL_SESSION_free(ssl->session); if ((ssl->session = SSL_SESSION_new()) == NULL) errx(1, "failed to create session"); /* Reset back to the default list. */ free(ssl->tlsext_supportedgroups); ssl->tlsext_supportedgroups = NULL; ssl->tlsext_supportedgroups_length = 0; CBS_init(&cbs, tlsext_supportedgroups_client_nistp192and224, sizeof(tlsext_supportedgroups_client_nistp192and224)); if (!server_funcs->process(ssl, SSL_TLSEXT_MSG_CH, &cbs, &alert)) { FAIL("failed to parse client Ellipticcurves\n"); goto err; } if (CBS_len(&cbs) != 0) { FAIL("extension data remaining\n"); goto err; } if (ssl->session->tlsext_supportedgroups_length != sizeof(tlsext_supportedgroups_client_nistp192and224_val) / sizeof(uint16_t)) { FAIL("no tlsext_ellipticcurves from client Ellipticcurves\n"); goto err; } if (memcmp(ssl->session->tlsext_supportedgroups, tlsext_supportedgroups_client_nistp192and224_val, sizeof(tlsext_supportedgroups_client_nistp192and224_val)) != 0) { FAIL("client had an incorrect Ellipticcurves entry\n"); compare_data2(ssl->session->tlsext_supportedgroups, ssl->session->tlsext_supportedgroups_length * 2, tlsext_supportedgroups_client_nistp192and224_val, sizeof(tlsext_supportedgroups_client_nistp192and224_val)); goto err; } failure = 0; err: CBB_cleanup(&cbb); SSL_CTX_free(ssl_ctx); SSL_free(ssl); free(data); return (failure); } /* elliptic_curves is only used by the client so this doesn't test much. */ static int test_tlsext_supportedgroups_server(void) { SSL_CTX *ssl_ctx = NULL; SSL *ssl = NULL; const struct tls_extension_funcs *client_funcs; const struct tls_extension_funcs *server_funcs; int failure; failure = 1; if ((ssl_ctx = SSL_CTX_new(TLS_server_method())) == NULL) errx(1, "failed to create SSL_CTX"); if ((ssl = SSL_new(ssl_ctx)) == NULL) errx(1, "failed to create SSL"); if (!tls_extension_funcs(TLSEXT_TYPE_supported_groups, &client_funcs, &server_funcs)) errx(1, "failed to fetch supported groups funcs"); if (server_funcs->needs(ssl, SSL_TLSEXT_MSG_SH)) { FAIL("server should not need elliptic_curves\n"); goto err; } if ((ssl->session = SSL_SESSION_new()) == NULL) errx(1, "failed to create session"); if (server_funcs->needs(ssl, SSL_TLSEXT_MSG_SH)) { FAIL("server should not need elliptic_curves\n"); goto err; } failure = 0; err: SSL_CTX_free(ssl_ctx); SSL_free(ssl); return (failure); } /* * Supported Point Formats - RFC 4492 section 5.1.2. * * Examples are from the RFC. Both client and server have the same build and * parse but the needs differ. */ static const uint8_t tlsext_ecpf_hello_uncompressed_val[] = { TLSEXT_ECPOINTFORMAT_uncompressed }; static const uint8_t tlsext_ecpf_hello_uncompressed[] = { 0x01, 0x00 /* TLSEXT_ECPOINTFORMAT_uncompressed */ }; static const uint8_t tlsext_ecpf_hello_prime[] = { 0x01, 0x01 /* TLSEXT_ECPOINTFORMAT_ansiX962_compressed_prime */ }; static const uint8_t tlsext_ecpf_hello_prefer_order_val[] = { TLSEXT_ECPOINTFORMAT_ansiX962_compressed_prime, TLSEXT_ECPOINTFORMAT_uncompressed, TLSEXT_ECPOINTFORMAT_ansiX962_compressed_char2 }; static const uint8_t tlsext_ecpf_hello_prefer_order[] = { 0x03, 0x01, /* TLSEXT_ECPOINTFORMAT_ansiX962_compressed_prime */ 0x00, /* TLSEXT_ECPOINTFORMAT_uncompressed */ 0x02 /* TLSEXT_ECPOINTFORMAT_ansiX962_compressed_char2 */ }; static int test_tlsext_ecpf_client(void) { uint8_t *data = NULL; SSL_CTX *ssl_ctx = NULL; SSL *ssl = NULL; const struct tls_extension_funcs *client_funcs; const struct tls_extension_funcs *server_funcs; size_t dlen; int failure, alert; CBB cbb; CBS cbs; failure = 1; if (!CBB_init(&cbb, 0)) errx(1, "Failed to create CBB"); if ((ssl_ctx = SSL_CTX_new(TLS_client_method())) == NULL) errx(1, "failed to create SSL_CTX"); if ((ssl = SSL_new(ssl_ctx)) == NULL) errx(1, "failed to create SSL"); if (!tls_extension_funcs(TLSEXT_TYPE_ec_point_formats, &client_funcs, &server_funcs)) errx(1, "failed to fetch ecpf funcs"); /* * Default ciphers include EC so we need it by default. */ if (!client_funcs->needs(ssl, SSL_TLSEXT_MSG_CH)) { FAIL("client should need ECPointFormats for default " "ciphers\n"); goto err; } /* * Exclude EC cipher suites so we can test not including it. */ if (!SSL_set_cipher_list(ssl, "ALL:!ECDHE:!ECDH")) { FAIL("client should be able to set cipher list\n"); goto err; } if (client_funcs->needs(ssl, SSL_TLSEXT_MSG_CH)) { FAIL("client should not need ECPointFormats\n"); goto err; } /* * Use libtls default for the rest of the testing */ if (!SSL_set_cipher_list(ssl, "TLSv1.2+AEAD+ECDHE")) { FAIL("client should be able to set cipher list\n"); goto err; } if (!client_funcs->needs(ssl, SSL_TLSEXT_MSG_CH)) { FAIL("client should need ECPointFormats\n"); goto err; } /* * The default ECPointFormats should only have uncompressed */ if ((ssl->session = SSL_SESSION_new()) == NULL) errx(1, "failed to create session"); if (!client_funcs->build(ssl, SSL_TLSEXT_MSG_CH, &cbb)) { FAIL("client failed to build ECPointFormats\n"); goto err; } if (!CBB_finish(&cbb, &data, &dlen)) errx(1, "failed to finish CBB"); if (dlen != sizeof(tlsext_ecpf_hello_uncompressed)) { FAIL("got client ECPointFormats with length %zu, " "want length %zu\n", dlen, sizeof(tlsext_ecpf_hello_uncompressed)); compare_data(data, dlen, tlsext_ecpf_hello_uncompressed, sizeof(tlsext_ecpf_hello_uncompressed)); goto err; } if (memcmp(data, tlsext_ecpf_hello_uncompressed, dlen) != 0) { FAIL("client ECPointFormats differs:\n"); compare_data(data, dlen, tlsext_ecpf_hello_uncompressed, sizeof(tlsext_ecpf_hello_uncompressed)); goto err; } /* * Make sure we can parse the default. */ CBB_cleanup(&cbb); if (!CBB_init(&cbb, 0)) errx(1, "Failed to create CBB"); free(data); data = NULL; SSL_SESSION_free(ssl->session); if ((ssl->session = SSL_SESSION_new()) == NULL) errx(1, "failed to create session"); CBS_init(&cbs, tlsext_ecpf_hello_uncompressed, sizeof(tlsext_ecpf_hello_uncompressed)); if (!server_funcs->process(ssl, SSL_TLSEXT_MSG_CH, &cbs, &alert)) { FAIL("failed to parse client ECPointFormats\n"); goto err; } if (CBS_len(&cbs) != 0) { FAIL("extension data remaining\n"); goto err; } if (ssl->session->tlsext_ecpointformatlist_length != sizeof(tlsext_ecpf_hello_uncompressed_val)) { FAIL("no tlsext_ecpointformats from client " "ECPointFormats\n"); goto err; } if (memcmp(ssl->session->tlsext_ecpointformatlist, tlsext_ecpf_hello_uncompressed_val, sizeof(tlsext_ecpf_hello_uncompressed_val)) != 0) { FAIL("client had an incorrect ECPointFormats entry\n"); goto err; } /* * Test with a custom order. */ CBB_cleanup(&cbb); if (!CBB_init(&cbb, 0)) errx(1, "Failed to create CBB"); free(data); data = NULL; SSL_SESSION_free(ssl->session); if ((ssl->session = SSL_SESSION_new()) == NULL) errx(1, "failed to create session"); if ((ssl->tlsext_ecpointformatlist = malloc(sizeof(uint8_t) * 3)) == NULL) { FAIL("client could not malloc\n"); goto err; } ssl->tlsext_ecpointformatlist[0] = TLSEXT_ECPOINTFORMAT_ansiX962_compressed_prime; ssl->tlsext_ecpointformatlist[1] = TLSEXT_ECPOINTFORMAT_uncompressed; ssl->tlsext_ecpointformatlist[2] = TLSEXT_ECPOINTFORMAT_ansiX962_compressed_char2; ssl->tlsext_ecpointformatlist_length = 3; if (!client_funcs->needs(ssl, SSL_TLSEXT_MSG_CH)) { FAIL("client should need ECPointFormats with a custom " "format\n"); goto err; } if (!client_funcs->build(ssl, SSL_TLSEXT_MSG_CH, &cbb)) { FAIL("client failed to build ECPointFormats\n"); goto err; } if (!CBB_finish(&cbb, &data, &dlen)) errx(1, "failed to finish CBB"); if (dlen != sizeof(tlsext_ecpf_hello_prefer_order)) { FAIL("got client ECPointFormats with length %zu, " "want length %zu\n", dlen, sizeof(tlsext_ecpf_hello_prefer_order)); compare_data(data, dlen, tlsext_ecpf_hello_prefer_order, sizeof(tlsext_ecpf_hello_prefer_order)); goto err; } if (memcmp(data, tlsext_ecpf_hello_prefer_order, dlen) != 0) { FAIL("client ECPointFormats differs:\n"); compare_data(data, dlen, tlsext_ecpf_hello_prefer_order, sizeof(tlsext_ecpf_hello_prefer_order)); goto err; } /* * Make sure that we can parse this custom order. */ CBB_cleanup(&cbb); if (!CBB_init(&cbb, 0)) errx(1, "Failed to create CBB"); free(data); data = NULL; SSL_SESSION_free(ssl->session); if ((ssl->session = SSL_SESSION_new()) == NULL) errx(1, "failed to create session"); /* Reset the custom list so we go back to the default uncompressed. */ free(ssl->tlsext_ecpointformatlist); ssl->tlsext_ecpointformatlist = NULL; ssl->tlsext_ecpointformatlist_length = 0; CBS_init(&cbs, tlsext_ecpf_hello_prefer_order, sizeof(tlsext_ecpf_hello_prefer_order)); if (!server_funcs->process(ssl, SSL_TLSEXT_MSG_CH, &cbs, &alert)) { FAIL("failed to parse client ECPointFormats\n"); goto err; } if (CBS_len(&cbs) != 0) { FAIL("extension data remaining\n"); goto err; } if (ssl->session->tlsext_ecpointformatlist_length != sizeof(tlsext_ecpf_hello_prefer_order_val)) { FAIL("no tlsext_ecpointformats from client " "ECPointFormats\n"); goto err; } if (memcmp(ssl->session->tlsext_ecpointformatlist, tlsext_ecpf_hello_prefer_order_val, sizeof(tlsext_ecpf_hello_prefer_order_val)) != 0) { FAIL("client had an incorrect ECPointFormats entry\n"); goto err; } failure = 0; err: CBB_cleanup(&cbb); SSL_CTX_free(ssl_ctx); SSL_free(ssl); free(data); return (failure); } static int test_tlsext_ecpf_server(void) { uint8_t *data = NULL; SSL_CTX *ssl_ctx = NULL; SSL *ssl = NULL; const struct tls_extension_funcs *client_funcs; const struct tls_extension_funcs *server_funcs; size_t dlen; int failure, alert; CBB cbb; CBS cbs; failure = 1; if (!CBB_init(&cbb, 0)) errx(1, "Failed to create CBB"); if ((ssl_ctx = SSL_CTX_new(TLS_server_method())) == NULL) errx(1, "failed to create SSL_CTX"); if ((ssl = SSL_new(ssl_ctx)) == NULL) errx(1, "failed to create SSL"); if (!tls_extension_funcs(TLSEXT_TYPE_ec_point_formats, &client_funcs, &server_funcs)) errx(1, "failed to fetch ecpf funcs"); if ((ssl->session = SSL_SESSION_new()) == NULL) errx(1, "failed to create session"); /* Setup the state so we can call needs. */ if ((ssl->s3->hs.cipher = ssl3_get_cipher_by_value(0xcca9)) == NULL) { FAIL("server cannot find cipher\n"); goto err; } if ((ssl->session->tlsext_ecpointformatlist = malloc(sizeof(uint8_t))) == NULL) { FAIL("server could not malloc\n"); goto err; } ssl->session->tlsext_ecpointformatlist[0] = TLSEXT_ECPOINTFORMAT_ansiX962_compressed_prime; ssl->session->tlsext_ecpointformatlist_length = 1; if (!server_funcs->needs(ssl, SSL_TLSEXT_MSG_SH)) { FAIL("server should need ECPointFormats now\n"); goto err; } /* * The server will ignore the session list and use either a custom * list or the default (uncompressed). */ if (!server_funcs->build(ssl, SSL_TLSEXT_MSG_SH, &cbb)) { FAIL("server failed to build ECPointFormats\n"); goto err; } if (!CBB_finish(&cbb, &data, &dlen)) errx(1, "failed to finish CBB"); if (dlen != sizeof(tlsext_ecpf_hello_uncompressed)) { FAIL("got server ECPointFormats with length %zu, " "want length %zu\n", dlen, sizeof(tlsext_ecpf_hello_uncompressed)); compare_data(data, dlen, tlsext_ecpf_hello_uncompressed, sizeof(tlsext_ecpf_hello_uncompressed)); goto err; } if (memcmp(data, tlsext_ecpf_hello_uncompressed, dlen) != 0) { FAIL("server ECPointFormats differs:\n"); compare_data(data, dlen, tlsext_ecpf_hello_uncompressed, sizeof(tlsext_ecpf_hello_uncompressed)); goto err; } /* * Cannot parse a non-default list without at least uncompressed. */ CBB_cleanup(&cbb); if (!CBB_init(&cbb, 0)) errx(1, "Failed to create CBB"); free(data); data = NULL; SSL_SESSION_free(ssl->session); if ((ssl->session = SSL_SESSION_new()) == NULL) errx(1, "failed to create session"); CBS_init(&cbs, tlsext_ecpf_hello_prime, sizeof(tlsext_ecpf_hello_prime)); if (client_funcs->process(ssl, SSL_TLSEXT_MSG_SH, &cbs, &alert)) { FAIL("must include uncompressed in server ECPointFormats\n"); goto err; } if (CBS_len(&cbs) != 0) { FAIL("extension data remaining\n"); goto err; } /* * Test with a custom order that replaces the default uncompressed. */ CBB_cleanup(&cbb); if (!CBB_init(&cbb, 0)) errx(1, "Failed to create CBB"); free(data); data = NULL; SSL_SESSION_free(ssl->session); if ((ssl->session = SSL_SESSION_new()) == NULL) errx(1, "failed to create session"); /* Add a session list even though it will be ignored. */ if ((ssl->session->tlsext_ecpointformatlist = malloc(sizeof(uint8_t))) == NULL) { FAIL("server could not malloc\n"); goto err; } ssl->session->tlsext_ecpointformatlist[0] = TLSEXT_ECPOINTFORMAT_ansiX962_compressed_char2; ssl->session->tlsext_ecpointformatlist_length = 1; /* Replace the default list with a custom one. */ if ((ssl->tlsext_ecpointformatlist = malloc(sizeof(uint8_t) * 3)) == NULL) { FAIL("server could not malloc\n"); goto err; } ssl->tlsext_ecpointformatlist[0] = TLSEXT_ECPOINTFORMAT_ansiX962_compressed_prime; ssl->tlsext_ecpointformatlist[1] = TLSEXT_ECPOINTFORMAT_uncompressed; ssl->tlsext_ecpointformatlist[2] = TLSEXT_ECPOINTFORMAT_ansiX962_compressed_char2; ssl->tlsext_ecpointformatlist_length = 3; if (!server_funcs->needs(ssl, SSL_TLSEXT_MSG_SH)) { FAIL("server should need ECPointFormats\n"); goto err; } if (!server_funcs->build(ssl, SSL_TLSEXT_MSG_SH, &cbb)) { FAIL("server failed to build ECPointFormats\n"); goto err; } if (!CBB_finish(&cbb, &data, &dlen)) errx(1, "failed to finish CBB"); if (dlen != sizeof(tlsext_ecpf_hello_prefer_order)) { FAIL("got server ECPointFormats with length %zu, " "want length %zu\n", dlen, sizeof(tlsext_ecpf_hello_prefer_order)); compare_data(data, dlen, tlsext_ecpf_hello_prefer_order, sizeof(tlsext_ecpf_hello_prefer_order)); goto err; } if (memcmp(data, tlsext_ecpf_hello_prefer_order, dlen) != 0) { FAIL("server ECPointFormats differs:\n"); compare_data(data, dlen, tlsext_ecpf_hello_prefer_order, sizeof(tlsext_ecpf_hello_prefer_order)); goto err; } /* * Should be able to parse the custom list into a session list. */ CBB_cleanup(&cbb); if (!CBB_init(&cbb, 0)) errx(1, "Failed to create CBB"); free(data); data = NULL; SSL_SESSION_free(ssl->session); if ((ssl->session = SSL_SESSION_new()) == NULL) errx(1, "failed to create session"); /* Reset back to the default (uncompressed) */ free(ssl->tlsext_ecpointformatlist); ssl->tlsext_ecpointformatlist = NULL; ssl->tlsext_ecpointformatlist_length = 0; CBS_init(&cbs, tlsext_ecpf_hello_prefer_order, sizeof(tlsext_ecpf_hello_prefer_order)); if (!client_funcs->process(ssl, SSL_TLSEXT_MSG_SH, &cbs, &alert)) { FAIL("failed to parse server ECPointFormats\n"); goto err; } if (CBS_len(&cbs) != 0) { FAIL("extension data remaining\n"); goto err; } if (ssl->session->tlsext_ecpointformatlist_length != sizeof(tlsext_ecpf_hello_prefer_order_val)) { FAIL("no tlsext_ecpointformats from server " "ECPointFormats\n"); goto err; } if (memcmp(ssl->session->tlsext_ecpointformatlist, tlsext_ecpf_hello_prefer_order_val, sizeof(tlsext_ecpf_hello_prefer_order_val)) != 0) { FAIL("server had an incorrect ECPointFormats entry\n"); goto err; } failure = 0; err: CBB_cleanup(&cbb); SSL_CTX_free(ssl_ctx); SSL_free(ssl); free(data); return (failure); } /* * Renegotiation Indication - RFC 5746. */ static const unsigned char tlsext_ri_prev_client[] = { 0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, 0x88, 0x99, 0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xff, }; static const unsigned char tlsext_ri_prev_server[] = { 0xff, 0xee, 0xdd, 0xcc, 0xbb, 0xaa, 0x99, 0x88, 0x77, 0x66, 0x55, 0x44, 0x33, 0x22, 0x11, 0x00, }; static const unsigned char tlsext_ri_client[] = { 0x10, 0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, 0x88, 0x99, 0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xff, }; static const unsigned char tlsext_ri_server[] = { 0x20, 0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, 0x88, 0x99, 0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xff, 0xff, 0xee, 0xdd, 0xcc, 0xbb, 0xaa, 0x99, 0x88, 0x77, 0x66, 0x55, 0x44, 0x33, 0x22, 0x11, 0x00, }; static int test_tlsext_ri_client(void) { unsigned char *data = NULL; SSL_CTX *ssl_ctx = NULL; SSL *ssl = NULL; const struct tls_extension_funcs *client_funcs; const struct tls_extension_funcs *server_funcs; int failure; size_t dlen; int alert; CBB cbb; CBS cbs; failure = 1; if (!CBB_init(&cbb, 0)) errx(1, "Failed to create CBB"); if ((ssl_ctx = SSL_CTX_new(TLSv1_2_client_method())) == NULL) errx(1, "failed to create SSL_CTX"); if ((ssl = SSL_new(ssl_ctx)) == NULL) errx(1, "failed to create SSL"); if (!tls_extension_funcs(TLSEXT_TYPE_renegotiate, &client_funcs, &server_funcs)) errx(1, "failed to fetch ri funcs"); if (client_funcs->needs(ssl, SSL_TLSEXT_MSG_CH)) { FAIL("client should not need RI\n"); goto err; } if (!SSL_renegotiate(ssl)) { FAIL("client failed to set renegotiate\n"); goto err; } if (!client_funcs->needs(ssl, SSL_TLSEXT_MSG_CH)) { FAIL("client should need RI\n"); goto err; } memcpy(ssl->s3->previous_client_finished, tlsext_ri_prev_client, sizeof(tlsext_ri_prev_client)); ssl->s3->previous_client_finished_len = sizeof(tlsext_ri_prev_client); ssl->s3->renegotiate_seen = 0; if (!client_funcs->build(ssl, SSL_TLSEXT_MSG_CH, &cbb)) { FAIL("client failed to build RI\n"); goto err; } if (!CBB_finish(&cbb, &data, &dlen)) errx(1, "failed to finish CBB"); if (dlen != sizeof(tlsext_ri_client)) { FAIL("got client RI with length %zu, " "want length %zu\n", dlen, sizeof(tlsext_ri_client)); goto err; } if (memcmp(data, tlsext_ri_client, dlen) != 0) { FAIL("client RI differs:\n"); fprintf(stderr, "received:\n"); hexdump(data, dlen); fprintf(stderr, "test data:\n"); hexdump(tlsext_ri_client, sizeof(tlsext_ri_client)); goto err; } CBS_init(&cbs, tlsext_ri_client, sizeof(tlsext_ri_client)); if (!server_funcs->process(ssl, SSL_TLSEXT_MSG_CH, &cbs, &alert)) { FAIL("failed to parse client RI\n"); goto err; } if (CBS_len(&cbs) != 0) { FAIL("extension data remaining\n"); goto err; } if (ssl->s3->renegotiate_seen != 1) { FAIL("renegotiate seen not set\n"); goto err; } if (ssl->s3->send_connection_binding != 1) { FAIL("send connection binding not set\n"); goto err; } memset(ssl->s3->previous_client_finished, 0, sizeof(ssl->s3->previous_client_finished)); ssl->s3->renegotiate_seen = 0; CBS_init(&cbs, tlsext_ri_client, sizeof(tlsext_ri_client)); if (server_funcs->process(ssl, SSL_TLSEXT_MSG_CH, &cbs, &alert)) { FAIL("parsed invalid client RI\n"); goto err; } if (ssl->s3->renegotiate_seen == 1) { FAIL("renegotiate seen set\n"); goto err; } failure = 0; err: CBB_cleanup(&cbb); SSL_CTX_free(ssl_ctx); SSL_free(ssl); free(data); return (failure); } static int test_tlsext_ri_server(void) { unsigned char *data = NULL; SSL_CTX *ssl_ctx = NULL; SSL *ssl = NULL; const struct tls_extension_funcs *client_funcs; const struct tls_extension_funcs *server_funcs; int failure; size_t dlen; int alert; CBB cbb; CBS cbs; failure = 1; if (!CBB_init(&cbb, 0)) errx(1, "Failed to create CBB"); if ((ssl_ctx = SSL_CTX_new(TLS_server_method())) == NULL) errx(1, "failed to create SSL_CTX"); if ((ssl = SSL_new(ssl_ctx)) == NULL) errx(1, "failed to create SSL"); if (!tls_extension_funcs(TLSEXT_TYPE_renegotiate, &client_funcs, &server_funcs)) errx(1, "failed to fetch ri funcs"); ssl->version = TLS1_2_VERSION; if (server_funcs->needs(ssl, SSL_TLSEXT_MSG_SH)) { FAIL("server should not need RI\n"); goto err; } ssl->s3->send_connection_binding = 1; if (!server_funcs->needs(ssl, SSL_TLSEXT_MSG_SH)) { FAIL("server should need RI\n"); goto err; } memcpy(ssl->s3->previous_client_finished, tlsext_ri_prev_client, sizeof(tlsext_ri_prev_client)); ssl->s3->previous_client_finished_len = sizeof(tlsext_ri_prev_client); memcpy(ssl->s3->previous_server_finished, tlsext_ri_prev_server, sizeof(tlsext_ri_prev_server)); ssl->s3->previous_server_finished_len = sizeof(tlsext_ri_prev_server); ssl->s3->renegotiate_seen = 0; if (!server_funcs->build(ssl, SSL_TLSEXT_MSG_SH, &cbb)) { FAIL("server failed to build RI\n"); goto err; } if (!CBB_finish(&cbb, &data, &dlen)) errx(1, "failed to finish CBB"); if (dlen != sizeof(tlsext_ri_server)) { FAIL("got server RI with length %zu, " "want length %zu\n", dlen, sizeof(tlsext_ri_server)); goto err; } if (memcmp(data, tlsext_ri_server, dlen) != 0) { FAIL("server RI differs:\n"); fprintf(stderr, "received:\n"); hexdump(data, dlen); fprintf(stderr, "test data:\n"); hexdump(tlsext_ri_server, sizeof(tlsext_ri_server)); goto err; } CBS_init(&cbs, tlsext_ri_server, sizeof(tlsext_ri_server)); if (!client_funcs->process(ssl, SSL_TLSEXT_MSG_SH, &cbs, &alert)) { FAIL("failed to parse server RI\n"); goto err; } if (CBS_len(&cbs) != 0) { FAIL("extension data remaining\n"); goto err; } if (ssl->s3->renegotiate_seen != 1) { FAIL("renegotiate seen not set\n"); goto err; } if (ssl->s3->send_connection_binding != 1) { FAIL("send connection binding not set\n"); goto err; } memset(ssl->s3->previous_client_finished, 0, sizeof(ssl->s3->previous_client_finished)); memset(ssl->s3->previous_server_finished, 0, sizeof(ssl->s3->previous_server_finished)); ssl->s3->renegotiate_seen = 0; CBS_init(&cbs, tlsext_ri_server, sizeof(tlsext_ri_server)); if (client_funcs->process(ssl, SSL_TLSEXT_MSG_SH, &cbs, &alert)) { FAIL("parsed invalid server RI\n"); goto err; } if (ssl->s3->renegotiate_seen == 1) { FAIL("renegotiate seen set\n"); goto err; } failure = 0; err: CBB_cleanup(&cbb); SSL_CTX_free(ssl_ctx); SSL_free(ssl); free(data); return (failure); } /* * Signature Algorithms - RFC 5246 section 7.4.1.4.1. */ static const unsigned char tlsext_sigalgs_client[] = { 0x00, 0x16, 0x08, 0x06, 0x06, 0x01, 0x06, 0x03, 0x08, 0x05, 0x05, 0x01, 0x05, 0x03, 0x08, 0x04, 0x04, 0x01, 0x04, 0x03, 0x02, 0x01, 0x02, 0x03, }; static int test_tlsext_sigalgs_client(void) { unsigned char *data = NULL; SSL_CTX *ssl_ctx = NULL; SSL *ssl = NULL; const struct tls_extension_funcs *client_funcs; const struct tls_extension_funcs *server_funcs; int failure; size_t dlen; int alert; CBB cbb; CBS cbs; failure = 1; if (!CBB_init(&cbb, 0)) errx(1, "Failed to create CBB"); if ((ssl_ctx = SSL_CTX_new(TLS_client_method())) == NULL) errx(1, "failed to create SSL_CTX"); if ((ssl = SSL_new(ssl_ctx)) == NULL) errx(1, "failed to create SSL"); if (!tls_extension_funcs(TLSEXT_TYPE_signature_algorithms, &client_funcs, &server_funcs)) errx(1, "failed to fetch sigalgs funcs"); ssl->s3->hs.our_max_tls_version = TLS1_1_VERSION; if (client_funcs->needs(ssl, SSL_TLSEXT_MSG_CH)) { FAIL("client should not need sigalgs\n"); goto done; } ssl->s3->hs.our_max_tls_version = TLS1_2_VERSION; if (!client_funcs->needs(ssl, SSL_TLSEXT_MSG_CH)) { FAIL("client should need sigalgs\n"); goto done; } if (!client_funcs->build(ssl, SSL_TLSEXT_MSG_CH, &cbb)) { FAIL("client failed to build sigalgs\n"); goto done; } if (!CBB_finish(&cbb, &data, &dlen)) errx(1, "failed to finish CBB"); if (dlen != sizeof(tlsext_sigalgs_client)) { FAIL("got client sigalgs length %zu, " "want length %zu\n", dlen, sizeof(tlsext_sigalgs_client)); goto done; } if (memcmp(data, tlsext_sigalgs_client, dlen) != 0) { FAIL("client SNI differs:\n"); fprintf(stderr, "received:\n"); hexdump(data, dlen); fprintf(stderr, "test data:\n"); hexdump(tlsext_sigalgs_client, sizeof(tlsext_sigalgs_client)); goto done; } CBS_init(&cbs, tlsext_sigalgs_client, sizeof(tlsext_sigalgs_client)); if (!server_funcs->process(ssl, SSL_TLSEXT_MSG_CH, &cbs, &alert)) { FAIL("failed to parse client SNI\n"); goto done; } if (CBS_len(&cbs) != 0) { FAIL("extension data remaining\n"); goto done; } failure = 0; done: CBB_cleanup(&cbb); SSL_CTX_free(ssl_ctx); SSL_free(ssl); free(data); return (failure); } #if 0 static int test_tlsext_sigalgs_server(void) { unsigned char *data = NULL; SSL_CTX *ssl_ctx = NULL; SSL *ssl = NULL; const struct tls_extension_funcs *client_funcs; const struct tls_extension_funcs *server_funcs; int failure; size_t dlen; int alert; CBB cbb; CBS cbs; failure = 1; if (!CBB_init(&cbb, 0)) errx(1, "Failed to create CBB"); if ((ssl_ctx = SSL_CTX_new(TLS_server_method())) == NULL) errx(1, "failed to create SSL_CTX"); if ((ssl = SSL_new(ssl_ctx)) == NULL) errx(1, "failed to create SSL"); if (!tls_extension_funcs(TLSEXT_TYPE_server_name, &client_funcs, &server_funcs)) errx(1, "failed to fetch sigalgs funcs"); if (server_funcs->needs(ssl, SSL_TLSEXT_MSG_SH)) { FAIL("server should not need sigalgs\n"); goto done; } if (server_funcs->build(ssl, SSL_TLSEXT_MSG_SH, &cbb)) { FAIL("server should not build sigalgs\n"); goto done; } if (!CBB_finish(&cbb, &data, &dlen)) errx(1, "failed to finish CBB"); CBS_init(&cbs, tlsext_sigalgs_client, sizeof(tlsext_sigalgs_client)); if (!client_funcs->process(ssl, SSL_TLSEXT_MSG_SH, &cbs, &alert)) { FAIL("server should not parse sigalgs\n"); goto done; } failure = 0; done: CBB_cleanup(&cbb); SSL_CTX_free(ssl_ctx); SSL_free(ssl); free(data); return (failure); } #endif /* * Server Name Indication - RFC 6066 section 3. */ #define TEST_SNI_SERVERNAME "www.libressl.org" static const unsigned char tlsext_sni_client[] = { 0x00, 0x13, 0x00, 0x00, 0x10, 0x77, 0x77, 0x77, 0x2e, 0x6c, 0x69, 0x62, 0x72, 0x65, 0x73, 0x73, 0x6c, 0x2e, 0x6f, 0x72, 0x67, }; /* An empty array is an incomplete type and sizeof() is undefined. */ static const unsigned char tlsext_sni_server[] = { 0x00, }; static size_t tlsext_sni_server_len = 0; static int test_tlsext_sni_client(void) { unsigned char *data = NULL; SSL_CTX *ssl_ctx = NULL; SSL *ssl = NULL; const struct tls_extension_funcs *client_funcs; const struct tls_extension_funcs *server_funcs; int failure; size_t dlen; int alert; CBB cbb; CBS cbs; failure = 1; if (!CBB_init(&cbb, 0)) errx(1, "Failed to create CBB"); if ((ssl_ctx = SSL_CTX_new(TLS_client_method())) == NULL) errx(1, "failed to create SSL_CTX"); if ((ssl = SSL_new(ssl_ctx)) == NULL) errx(1, "failed to create SSL"); if (!tls_extension_funcs(TLSEXT_TYPE_server_name, &client_funcs, &server_funcs)) errx(1, "failed to fetch sni funcs"); if (client_funcs->needs(ssl, SSL_TLSEXT_MSG_CH)) { FAIL("client should not need SNI\n"); goto err; } if (!SSL_set_tlsext_host_name(ssl, TEST_SNI_SERVERNAME)) { FAIL("client failed to set server name\n"); goto err; } if (!client_funcs->needs(ssl, SSL_TLSEXT_MSG_CH)) { FAIL("client should need SNI\n"); goto err; } if (!client_funcs->build(ssl, SSL_TLSEXT_MSG_CH, &cbb)) { FAIL("client failed to build SNI\n"); goto err; } if (!CBB_finish(&cbb, &data, &dlen)) { FAIL("failed to finish CBB"); goto err; } if (dlen != sizeof(tlsext_sni_client)) { FAIL("got client SNI with length %zu, " "want length %zu\n", dlen, sizeof(tlsext_sni_client)); goto err; } if (memcmp(data, tlsext_sni_client, dlen) != 0) { FAIL("client SNI differs:\n"); fprintf(stderr, "received:\n"); hexdump(data, dlen); fprintf(stderr, "test data:\n"); hexdump(tlsext_sni_client, sizeof(tlsext_sni_client)); goto err; } /* * SSL_set_tlsext_host_name() may be called with a NULL host name to * disable SNI. */ if (!SSL_set_tlsext_host_name(ssl, NULL)) { FAIL("cannot set host name to NULL"); goto err; } if (client_funcs->needs(ssl, SSL_TLSEXT_MSG_CH)) { FAIL("client should not need SNI\n"); goto err; } if ((ssl->session = SSL_SESSION_new()) == NULL) { FAIL("failed to create session"); goto err; } ssl->hit = 0; CBS_init(&cbs, tlsext_sni_client, sizeof(tlsext_sni_client)); if (!server_funcs->process(ssl, SSL_TLSEXT_MSG_CH, &cbs, &alert)) { FAIL("failed to parse client SNI\n"); goto err; } if (CBS_len(&cbs) != 0) { FAIL("extension data remaining\n"); goto err; } if (ssl->session->tlsext_hostname == NULL) { FAIL("no tlsext_hostname from client SNI\n"); goto err; } if (strlen(ssl->session->tlsext_hostname) != strlen(TEST_SNI_SERVERNAME) || strncmp(ssl->session->tlsext_hostname, TEST_SNI_SERVERNAME, strlen(TEST_SNI_SERVERNAME)) != 0) { FAIL("got tlsext_hostname `%s', want `%s'\n", ssl->session->tlsext_hostname, TEST_SNI_SERVERNAME); goto err; } ssl->hit = 1; free(ssl->session->tlsext_hostname); if ((ssl->session->tlsext_hostname = strdup("notthesame.libressl.org")) == NULL) { FAIL("failed to strdup tlsext_hostname"); goto err; } CBS_init(&cbs, tlsext_sni_client, sizeof(tlsext_sni_client)); if (server_funcs->process(ssl, SSL_TLSEXT_MSG_CH, &cbs, &alert)) { FAIL("parsed client with mismatched SNI\n"); goto err; } failure = 0; err: CBB_cleanup(&cbb); SSL_CTX_free(ssl_ctx); SSL_free(ssl); free(data); return (failure); } static int test_tlsext_sni_server(void) { unsigned char *data = NULL; SSL_CTX *ssl_ctx = NULL; SSL *ssl = NULL; const struct tls_extension_funcs *client_funcs; const struct tls_extension_funcs *server_funcs; int failure; size_t dlen; int alert; CBB cbb; CBS cbs; failure = 1; if (!CBB_init(&cbb, 0)) errx(1, "Failed to create CBB"); if ((ssl_ctx = SSL_CTX_new(TLS_server_method())) == NULL) errx(1, "failed to create SSL_CTX"); if ((ssl = SSL_new(ssl_ctx)) == NULL) errx(1, "failed to create SSL"); if (!tls_extension_funcs(TLSEXT_TYPE_server_name, &client_funcs, &server_funcs)) errx(1, "failed to fetch sni funcs"); if ((ssl->session = SSL_SESSION_new()) == NULL) errx(1, "failed to create session"); if (server_funcs->needs(ssl, SSL_TLSEXT_MSG_SH)) { FAIL("server should not need SNI\n"); goto err; } if (!SSL_set_tlsext_host_name(ssl, TEST_SNI_SERVERNAME)) { FAIL("client failed to set server name\n"); goto err; } if ((ssl->session->tlsext_hostname = strdup(TEST_SNI_SERVERNAME)) == NULL) errx(1, "failed to strdup tlsext_hostname"); if (!server_funcs->needs(ssl, SSL_TLSEXT_MSG_SH)) { FAIL("server should need SNI\n"); goto err; } if (!server_funcs->build(ssl, SSL_TLSEXT_MSG_SH, &cbb)) { FAIL("server failed to build SNI\n"); goto err; } if (!CBB_finish(&cbb, &data, &dlen)) errx(1, "failed to finish CBB"); if (dlen != tlsext_sni_server_len) { FAIL("got server SNI with length %zu, " "want length %zu\n", dlen, tlsext_sni_server_len); goto err; } if (memcmp(data, tlsext_sni_server, dlen) != 0) { FAIL("server SNI differs:\n"); fprintf(stderr, "received:\n"); hexdump(data, dlen); fprintf(stderr, "test data:\n"); hexdump(tlsext_sni_server, tlsext_sni_server_len); goto err; } free(ssl->session->tlsext_hostname); ssl->session->tlsext_hostname = NULL; CBS_init(&cbs, tlsext_sni_server, tlsext_sni_server_len); if (!client_funcs->process(ssl, SSL_TLSEXT_MSG_SH, &cbs, &alert)) { FAIL("failed to parse server SNI\n"); goto err; } if (CBS_len(&cbs) != 0) { FAIL("extension data remaining\n"); goto err; } if (ssl->session->tlsext_hostname == NULL) { FAIL("no tlsext_hostname after server SNI\n"); goto err; } if (strlen(ssl->session->tlsext_hostname) != strlen(TEST_SNI_SERVERNAME) || strncmp(ssl->session->tlsext_hostname, TEST_SNI_SERVERNAME, strlen(TEST_SNI_SERVERNAME)) != 0) { FAIL("got tlsext_hostname `%s', want `%s'\n", ssl->session->tlsext_hostname, TEST_SNI_SERVERNAME); goto err; } failure = 0; err: CBB_cleanup(&cbb); SSL_CTX_free(ssl_ctx); SSL_free(ssl); free(data); return (failure); } /* * QUIC transport parameters extension - RFC 90210 :) */ static const unsigned char tlsext_quic_transport_data[] = { 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, }; static int test_tlsext_quic_transport_parameters_client(void) { const SSL_QUIC_METHOD quic_method = {0}; unsigned char *data = NULL; SSL_CTX *ssl_ctx = NULL; SSL *ssl = NULL; const struct tls_extension_funcs *client_funcs; const struct tls_extension_funcs *server_funcs; int failure; size_t dlen; CBB cbb; CBS cbs; int alert; const uint8_t *out_bytes; size_t out_bytes_len; failure = 1; if (!CBB_init(&cbb, 0)) errx(1, "Failed to create CBB"); if ((ssl_ctx = SSL_CTX_new(TLS_client_method())) == NULL) errx(1, "failed to create SSL_CTX"); if ((ssl = SSL_new(ssl_ctx)) == NULL) errx(1, "failed to create SSL"); if (!tls_extension_funcs(TLSEXT_TYPE_quic_transport_parameters, &client_funcs, &server_funcs)) errx(1, "failed to fetch quic transport parameter funcs"); if (client_funcs->needs(ssl, SSL_TLSEXT_MSG_CH)) { FAIL("client should not need QUIC\n"); goto err; } if (!SSL_set_quic_transport_params(ssl, tlsext_quic_transport_data, sizeof(tlsext_quic_transport_data))) { FAIL("client failed to set QUIC parameters\n"); goto err; } if (client_funcs->needs(ssl, SSL_TLSEXT_MSG_CH)) { FAIL("client should not need QUIC\n"); goto err; } ssl->s3->hs.our_max_tls_version = TLS1_3_VERSION; ssl->s3->hs.negotiated_tls_version = TLS1_3_VERSION; if (client_funcs->needs(ssl, SSL_TLSEXT_MSG_CH)) { FAIL("client should not need QUIC\n"); goto err; } ssl->quic_method = &quic_method; if (!client_funcs->needs(ssl, SSL_TLSEXT_MSG_CH)) { FAIL("client should need QUIC\n"); goto err; } if (!client_funcs->build(ssl, SSL_TLSEXT_MSG_CH, &cbb)) { FAIL("client failed to build QUIC\n"); goto err; } if (!CBB_finish(&cbb, &data, &dlen)) { FAIL("failed to finish CBB"); goto err; } if (dlen != sizeof(tlsext_quic_transport_data)) { FAIL("got client QUIC with length %zu, " "want length %zu\n", dlen, sizeof(tlsext_quic_transport_data)); goto err; } if (memcmp(data, tlsext_quic_transport_data, dlen) != 0) { FAIL("client QUIC differs:\n"); fprintf(stderr, "received:\n"); hexdump(data, dlen); fprintf(stderr, "test data:\n"); hexdump(tlsext_quic_transport_data, sizeof(tlsext_quic_transport_data)); goto err; } CBS_init(&cbs, tlsext_quic_transport_data, sizeof(tlsext_quic_transport_data)); if (!server_funcs->process(ssl, SSL_TLSEXT_MSG_SH, &cbs, &alert)) { FAIL("server_parse of QUIC from server failed\n"); goto err; } if (CBS_len(&cbs) != 0) { FAIL("extension data remaining\n"); goto err; } SSL_get_peer_quic_transport_params(ssl, &out_bytes, &out_bytes_len); if (out_bytes_len != sizeof(tlsext_quic_transport_data)) { FAIL("server_parse QUIC length differs, got %zu want %zu\n", out_bytes_len, sizeof(tlsext_quic_transport_data)); goto err; } if (memcmp(out_bytes, tlsext_quic_transport_data, out_bytes_len) != 0) { FAIL("server_parse QUIC differs from sent:\n"); fprintf(stderr, "received:\n"); hexdump(data, dlen); fprintf(stderr, "test data:\n"); hexdump(tlsext_quic_transport_data, sizeof(tlsext_quic_transport_data)); goto err; } failure = 0; err: CBB_cleanup(&cbb); SSL_CTX_free(ssl_ctx); SSL_free(ssl); free(data); return (failure); } static int test_tlsext_quic_transport_parameters_server(void) { const SSL_QUIC_METHOD quic_method = {0}; unsigned char *data = NULL; SSL_CTX *ssl_ctx = NULL; SSL *ssl = NULL; const struct tls_extension_funcs *client_funcs; const struct tls_extension_funcs *server_funcs; int failure; size_t dlen; int alert; CBB cbb; CBS cbs; const uint8_t *out_bytes; size_t out_bytes_len; failure = 1; if (!CBB_init(&cbb, 0)) errx(1, "Failed to create CBB"); if ((ssl_ctx = SSL_CTX_new(TLS_server_method())) == NULL) errx(1, "failed to create SSL_CTX"); if ((ssl = SSL_new(ssl_ctx)) == NULL) errx(1, "failed to create SSL"); if (!tls_extension_funcs(TLSEXT_TYPE_quic_transport_parameters, &client_funcs, &server_funcs)) errx(1, "failed to fetch quic transport parameter funcs"); if (server_funcs->needs(ssl, SSL_TLSEXT_MSG_SH)) { FAIL("server should not need QUIC\n"); goto err; } if (!SSL_set_quic_transport_params(ssl, tlsext_quic_transport_data, sizeof(tlsext_quic_transport_data))) { FAIL("server failed to set QUIC parametes\n"); goto err; } if (server_funcs->needs(ssl, SSL_TLSEXT_MSG_EE)) { FAIL("server should not need QUIC\n"); goto err; } ssl->quic_method = &quic_method; if (!server_funcs->needs(ssl, SSL_TLSEXT_MSG_EE)) { FAIL("server should need QUIC\n"); goto err; } if (!server_funcs->build(ssl, SSL_TLSEXT_MSG_EE, &cbb)) { FAIL("server failed to build QUIC\n"); goto err; } if (!CBB_finish(&cbb, &data, &dlen)) errx(1, "failed to finish CBB"); if (dlen != sizeof(tlsext_quic_transport_data)) { FAIL("got server QUIC with length %zu, want length %zu\n", dlen, sizeof(tlsext_quic_transport_data)); goto err; } if (memcmp(data, tlsext_quic_transport_data, dlen) != 0) { FAIL("saved server QUIC differs:\n"); fprintf(stderr, "received:\n"); hexdump(data, dlen); fprintf(stderr, "test data:\n"); hexdump(tlsext_quic_transport_data, sizeof(tlsext_quic_transport_data)); goto err; } CBS_init(&cbs, tlsext_quic_transport_data, sizeof(tlsext_quic_transport_data)); ssl->quic_method = NULL; if (client_funcs->process(ssl, SSL_TLSEXT_MSG_EE, &cbs, &alert)) { FAIL("QUIC parse should have failed!\n"); goto err; } ssl->quic_method = &quic_method; if (!client_funcs->process(ssl, SSL_TLSEXT_MSG_SH, &cbs, &alert)) { FAIL("client_parse of QUIC from server failed\n"); goto err; } if (CBS_len(&cbs) != 0) { FAIL("extension data remaining\n"); goto err; } SSL_get_peer_quic_transport_params(ssl, &out_bytes, &out_bytes_len); if (out_bytes_len != sizeof(tlsext_quic_transport_data)) { FAIL("client QUIC length differs, got %zu want %zu\n", out_bytes_len, sizeof(tlsext_quic_transport_data)); goto err; } if (memcmp(out_bytes, tlsext_quic_transport_data, out_bytes_len) != 0) { FAIL("client QUIC differs from sent:\n"); fprintf(stderr, "received:\n"); hexdump(data, dlen); fprintf(stderr, "test data:\n"); hexdump(tlsext_quic_transport_data, sizeof(tlsext_quic_transport_data)); goto err; } failure = 0; err: CBB_cleanup(&cbb); SSL_CTX_free(ssl_ctx); SSL_free(ssl); free(data); return (failure); } static const unsigned char tls_ocsp_client_default[] = { 0x01, 0x00, 0x00, 0x00, 0x00 }; static int test_tlsext_ocsp_client(void) { unsigned char *data = NULL; SSL_CTX *ssl_ctx = NULL; SSL *ssl = NULL; const struct tls_extension_funcs *client_funcs; const struct tls_extension_funcs *server_funcs; size_t dlen; int failure; int alert; CBB cbb; CBS cbs; failure = 1; if (!CBB_init(&cbb, 0)) errx(1, "Failed to create CBB"); if ((ssl_ctx = SSL_CTX_new(TLS_client_method())) == NULL) errx(1, "failed to create SSL_CTX"); if ((ssl = SSL_new(ssl_ctx)) == NULL) errx(1, "failed to create SSL"); if (!tls_extension_funcs(TLSEXT_TYPE_status_request, &client_funcs, &server_funcs)) errx(1, "failed to fetch ocsp funcs"); if (client_funcs->needs(ssl, SSL_TLSEXT_MSG_CH)) { FAIL("client should not need TLSEXT_TYPE_status_request\n"); goto err; } SSL_set_tlsext_status_type(ssl, TLSEXT_STATUSTYPE_ocsp); if (!client_funcs->needs(ssl, SSL_TLSEXT_MSG_CH)) { FAIL("client should need TLSEXT_TYPE_status_request\n"); goto err; } if (!client_funcs->build(ssl, SSL_TLSEXT_MSG_CH, &cbb)) { FAIL("client failed to build SNI\n"); goto err; } if (!CBB_finish(&cbb, &data, &dlen)) errx(1, "failed to finish CBB"); if (dlen != sizeof(tls_ocsp_client_default)) { FAIL("got TLSEXT_TYPE_status_request client with length %zu, " "want length %zu\n", dlen, sizeof(tls_ocsp_client_default)); goto err; } if (memcmp(data, tls_ocsp_client_default, dlen) != 0) { FAIL("TLSEXT_TYPE_status_request client differs:\n"); fprintf(stderr, "received:\n"); hexdump(data, dlen); fprintf(stderr, "test data:\n"); hexdump(tls_ocsp_client_default, sizeof(tls_ocsp_client_default)); goto err; } CBS_init(&cbs, tls_ocsp_client_default, sizeof(tls_ocsp_client_default)); if (!server_funcs->process(ssl, SSL_TLSEXT_MSG_CH, &cbs, &alert)) { FAIL("failed to parse TLSEXT_TYPE_status_request client\n"); goto err; } if (CBS_len(&cbs) != 0) { FAIL("extension data remaining\n"); goto err; } failure = 0; err: CBB_cleanup(&cbb); SSL_CTX_free(ssl_ctx); SSL_free(ssl); free(data); return (failure); } static int test_tlsext_ocsp_server(void) { unsigned char *data = NULL; SSL_CTX *ssl_ctx = NULL; SSL *ssl = NULL; const struct tls_extension_funcs *client_funcs; const struct tls_extension_funcs *server_funcs; size_t dlen; int failure; CBB cbb; failure = 1; if (!CBB_init(&cbb, 0)) errx(1, "Failed to create CBB"); if ((ssl_ctx = SSL_CTX_new(TLS_client_method())) == NULL) errx(1, "failed to create SSL_CTX"); if ((ssl = SSL_new(ssl_ctx)) == NULL) errx(1, "failed to create SSL"); if (!tls_extension_funcs(TLSEXT_TYPE_status_request, &client_funcs, &server_funcs)) errx(1, "failed to fetch ocsp funcs"); if (server_funcs->needs(ssl, SSL_TLSEXT_MSG_SH)) { FAIL("server should not need TLSEXT_TYPE_status_request\n"); goto err; } ssl->tlsext_status_expected = 1; if (!server_funcs->needs(ssl, SSL_TLSEXT_MSG_SH)) { FAIL("server should need TLSEXT_TYPE_status_request\n"); goto err; } if (!server_funcs->build(ssl, SSL_TLSEXT_MSG_SH, &cbb)) { FAIL("server failed to build TLSEXT_TYPE_status_request\n"); goto err; } if (!CBB_finish(&cbb, &data, &dlen)) errx(1, "failed to finish CBB"); failure = 0; err: CBB_cleanup(&cbb); SSL_CTX_free(ssl_ctx); SSL_free(ssl); free(data); return (failure); } /* * Session ticket - RFC 5077 since no known implementations use 4507. * * Session tickets can be length 0 (special case) to 2^16-1. * * The state is encrypted by the server so it is opaque to the client. */ static uint8_t tlsext_sessionticket_hello_min[1]; static uint8_t tlsext_sessionticket_hello_max[65535]; static int test_tlsext_sessionticket_client(void) { unsigned char *data = NULL; SSL_CTX *ssl_ctx = NULL; SSL *ssl = NULL; const struct tls_extension_funcs *client_funcs; const struct tls_extension_funcs *server_funcs; int failure; CBB cbb; size_t dlen; uint8_t dummy[1234]; failure = 1; if (!CBB_init(&cbb, 0)) errx(1, "Failed to create CBB"); /* Create fake session tickets with random data. */ arc4random_buf(tlsext_sessionticket_hello_min, sizeof(tlsext_sessionticket_hello_min)); arc4random_buf(tlsext_sessionticket_hello_max, sizeof(tlsext_sessionticket_hello_max)); if ((ssl_ctx = SSL_CTX_new(TLS_client_method())) == NULL) errx(1, "failed to create SSL_CTX"); if ((ssl = SSL_new(ssl_ctx)) == NULL) errx(1, "failed to create SSL"); if (!tls_extension_funcs(TLSEXT_TYPE_session_ticket, &client_funcs, &server_funcs)) errx(1, "failed to fetch session ticket funcs"); /* Should need a ticket by default. */ if (!client_funcs->needs(ssl, SSL_TLSEXT_MSG_CH)) { FAIL("client should need Sessionticket for default " "ciphers\n"); goto err; } /* Test disabling tickets. */ if ((SSL_set_options(ssl, SSL_OP_NO_TICKET) & SSL_OP_NO_TICKET) == 0) { FAIL("Cannot disable tickets in the TLS connection\n"); goto err; } if (client_funcs->needs(ssl, SSL_TLSEXT_MSG_CH)) { FAIL("client should not need SessionTicket if it was disabled\n"); goto err; } /* Test re-enabling tickets. */ if ((SSL_clear_options(ssl, SSL_OP_NO_TICKET) & SSL_OP_NO_TICKET) != 0) { FAIL("Cannot re-enable tickets in the TLS connection\n"); goto err; } if (!client_funcs->needs(ssl, SSL_TLSEXT_MSG_CH)) { FAIL("client should need SessionTicket if it was disabled\n"); goto err; } /* Since we don't have a session, we should build an empty ticket. */ if (!client_funcs->build(ssl, SSL_TLSEXT_MSG_CH, &cbb)) { FAIL("Cannot build a ticket\n"); goto err; } if (!CBB_finish(&cbb, &data, &dlen)) { FAIL("Cannot finish CBB\n"); goto err; } if (dlen != 0) { FAIL("Expected 0 length but found %zu\n", dlen); goto err; } CBB_cleanup(&cbb); if (!CBB_init(&cbb, 0)) errx(1, "Failed to create CBB"); free(data); data = NULL; /* With a new session (but no ticket), we should still have 0 length */ if ((ssl->session = SSL_SESSION_new()) == NULL) errx(1, "failed to create session"); if (!client_funcs->needs(ssl, SSL_TLSEXT_MSG_CH)) { FAIL("Should still want a session ticket with a new session\n"); goto err; } if (!client_funcs->build(ssl, SSL_TLSEXT_MSG_CH, &cbb)) { FAIL("Cannot build a ticket\n"); goto err; } if (!CBB_finish(&cbb, &data, &dlen)) { FAIL("Cannot finish CBB\n"); goto err; } if (dlen != 0) { FAIL("Expected 0 length but found %zu\n", dlen); goto err; } CBB_cleanup(&cbb); if (!CBB_init(&cbb, 0)) errx(1, "Failed to create CBB"); free(data); data = NULL; /* With a new session (and ticket), we should use that ticket */ SSL_SESSION_free(ssl->session); if ((ssl->session = SSL_SESSION_new()) == NULL) errx(1, "failed to create session"); arc4random_buf(&dummy, sizeof(dummy)); if ((ssl->session->tlsext_tick = malloc(sizeof(dummy))) == NULL) { errx(1, "failed to malloc"); } memcpy(ssl->session->tlsext_tick, dummy, sizeof(dummy)); ssl->session->tlsext_ticklen = sizeof(dummy); if (!client_funcs->needs(ssl, SSL_TLSEXT_MSG_CH)) { FAIL("Should still want a session ticket with a new session\n"); goto err; } if (!client_funcs->build(ssl, SSL_TLSEXT_MSG_CH, &cbb)) { FAIL("Cannot build a ticket\n"); goto err; } if (!CBB_finish(&cbb, &data, &dlen)) { FAIL("Cannot finish CBB\n"); goto err; } if (dlen != sizeof(dummy)) { FAIL("Expected %zu length but found %zu\n", sizeof(dummy), dlen); goto err; } if (memcmp(data, dummy, dlen) != 0) { FAIL("server SNI differs:\n"); compare_data(data, dlen, dummy, sizeof(dummy)); goto err; } CBB_cleanup(&cbb); if (!CBB_init(&cbb, 0)) errx(1, "Failed to create CBB"); free(data); data = NULL; free(ssl->session->tlsext_tick); ssl->session->tlsext_tick = NULL; ssl->session->tlsext_ticklen = 0; /* * Send in NULL to disable session tickets at runtime without going * through SSL_set_options(). */ if (!SSL_set_session_ticket_ext(ssl, NULL, 0)) { FAIL("Could not set a NULL custom ticket\n"); goto err; } /* Should not need a ticket in this case */ if (client_funcs->needs(ssl, SSL_TLSEXT_MSG_CH)) { FAIL("Should not want to use session tickets with a NULL custom\n"); goto err; } /* * If you want to remove the tlsext_session_ticket behavior, you have * to do it manually. */ free(ssl->tlsext_session_ticket); ssl->tlsext_session_ticket = NULL; if (!client_funcs->needs(ssl, SSL_TLSEXT_MSG_CH)) { FAIL("Should need a session ticket again when the custom one is removed\n"); goto err; } /* Test a custom session ticket (not recommended in practice) */ if (!SSL_set_session_ticket_ext(ssl, tlsext_sessionticket_hello_max, sizeof(tlsext_sessionticket_hello_max))) { FAIL("Should be able to set a custom ticket\n"); goto err; } if (!client_funcs->needs(ssl, SSL_TLSEXT_MSG_CH)) { FAIL("Should need a session ticket again when the custom one is not empty\n"); goto err; } if (!client_funcs->build(ssl, SSL_TLSEXT_MSG_CH, &cbb)) { FAIL("Cannot build a ticket with a max length random payload\n"); goto err; } if (!CBB_finish(&cbb, &data, &dlen)) { FAIL("Cannot finish CBB\n"); goto err; } if (dlen != sizeof(tlsext_sessionticket_hello_max)) { FAIL("Expected %zu length but found %zu\n", sizeof(tlsext_sessionticket_hello_max), dlen); goto err; } if (memcmp(data, tlsext_sessionticket_hello_max, sizeof(tlsext_sessionticket_hello_max)) != 0) { FAIL("Expected to get what we passed in\n"); compare_data(data, dlen, tlsext_sessionticket_hello_max, sizeof(tlsext_sessionticket_hello_max)); goto err; } failure = 0; err: CBB_cleanup(&cbb); SSL_CTX_free(ssl_ctx); SSL_free(ssl); free(data); return (failure); } static int test_tlsext_sessionticket_server(void) { SSL_CTX *ssl_ctx = NULL; SSL *ssl = NULL; const struct tls_extension_funcs *client_funcs; const struct tls_extension_funcs *server_funcs; int failure; uint8_t *data = NULL; size_t dlen; CBB cbb; failure = 1; if (!CBB_init(&cbb, 0)) errx(1, "Failed to create CBB"); if ((ssl_ctx = SSL_CTX_new(TLS_server_method())) == NULL) errx(1, "failed to create SSL_CTX"); if ((ssl = SSL_new(ssl_ctx)) == NULL) errx(1, "failed to create SSL"); if (!tls_extension_funcs(TLSEXT_TYPE_session_ticket, &client_funcs, &server_funcs)) errx(1, "failed to fetch session ticket funcs"); /* * By default, should not need a session ticket since the ticket * is not yet expected. */ if (server_funcs->needs(ssl, SSL_TLSEXT_MSG_SH)) { FAIL("server should not need SessionTicket by default\n"); goto err; } /* Test disabling tickets. */ if ((SSL_set_options(ssl, SSL_OP_NO_TICKET) & SSL_OP_NO_TICKET) == 0) { FAIL("Cannot disable tickets in the TLS connection\n"); goto err; } if (server_funcs->needs(ssl, SSL_TLSEXT_MSG_SH)) { FAIL("server should not need SessionTicket if it was disabled\n"); goto err; } /* Test re-enabling tickets. */ if ((SSL_clear_options(ssl, SSL_OP_NO_TICKET) & SSL_OP_NO_TICKET) != 0) { FAIL("Cannot re-enable tickets in the TLS connection\n"); goto err; } if (server_funcs->needs(ssl, SSL_TLSEXT_MSG_SH)) { FAIL("server should not need SessionTicket yet\n"); goto err; } /* Set expected to require it. */ ssl->tlsext_ticket_expected = 1; if (!server_funcs->needs(ssl, SSL_TLSEXT_MSG_SH)) { FAIL("server should now be required for SessionTicket\n"); goto err; } /* server hello's session ticket should always be 0 length payload. */ if (!server_funcs->build(ssl, SSL_TLSEXT_MSG_SH, &cbb)) { FAIL("Cannot build a ticket with a max length random payload\n"); goto err; } if (!CBB_finish(&cbb, &data, &dlen)) { FAIL("Cannot finish CBB\n"); goto err; } if (dlen != 0) { FAIL("Expected 0 length but found %zu\n", dlen); goto err; } failure = 0; err: CBB_cleanup(&cbb); SSL_CTX_free(ssl_ctx); SSL_free(ssl); free(data); return (failure); } #ifndef OPENSSL_NO_SRTP /* * Supported Secure Real-time Transport Protocol (RFC 5764 section 4.1.1) */ /* Colon separated string values */ const char *tlsext_srtp_single_profile = "SRTP_AES128_CM_SHA1_80"; const char *tlsext_srtp_multiple_profiles = "SRTP_AES128_CM_SHA1_80:SRTP_AES128_CM_SHA1_32"; const char *tlsext_srtp_aes128cmsha80 = "SRTP_AES128_CM_SHA1_80"; const char *tlsext_srtp_aes128cmsha32 = "SRTP_AES128_CM_SHA1_32"; const uint8_t tlsext_srtp_single[] = { /* SRTPProtectionProfile SRTPProtectionProfiles<2..2^16-1> */ 0x00, 0x02, /* len */ 0x00, 0x01, /* SRTP_AES128_CM_SHA1_80 */ 0x00 /* opaque srtp_mki<0..255> */ }; const uint8_t tlsext_srtp_multiple[] = { /* SRTPProtectionProfile SRTPProtectionProfiles<2..2^16-1> */ 0x00, 0x04, /* len */ 0x00, 0x01, /* SRTP_AES128_CM_SHA1_80 */ 0x00, 0x02, /* SRTP_AES128_CM_SHA1_32 */ 0x00 /* opaque srtp_mki<0..255> */ }; const uint8_t tlsext_srtp_multiple_invalid[] = { /* SRTPProtectionProfile SRTPProtectionProfiles<2..2^16-1> */ 0x00, 0x04, /* len */ 0x00, 0x08, /* arbitrary value not found in known profiles */ 0x00, 0x09, /* arbitrary value not found in known profiles */ 0x00 /* opaque srtp_mki<0..255> */ }; const uint8_t tlsext_srtp_single_invalid[] = { /* SRTPProtectionProfile SRTPProtectionProfiles<2..2^16-1> */ 0x00, 0x02, /* len */ 0x00, 0x08, /* arbitrary value not found in known profiles */ 0x00 /* opaque srtp_mki<0..255> */ }; const uint8_t tlsext_srtp_multiple_one_valid[] = { /* SRTPProtectionProfile SRTPProtectionProfiles<2..2^16-1> */ 0x00, 0x04, /* len */ 0x00, 0x08, /* arbitrary value not found in known profiles */ 0x00, 0x02, /* SRTP_AES128_CM_SHA1_32 */ 0x00 /* opaque srtp_mki<0..255> */ }; static int test_tlsext_srtp_client(void) { SRTP_PROTECTION_PROFILE *prof; SSL_CTX *ssl_ctx = NULL; SSL *ssl = NULL; const struct tls_extension_funcs *client_funcs; const struct tls_extension_funcs *server_funcs; uint8_t *data = NULL; CBB cbb; CBS cbs; int failure, alert; size_t dlen; failure = 1; if (!CBB_init(&cbb, 0)) errx(1, "Failed to create CBB"); /* SRTP is for DTLS */ if ((ssl_ctx = SSL_CTX_new(DTLSv1_client_method())) == NULL) errx(1, "failed to create SSL_CTX"); if ((ssl = SSL_new(ssl_ctx)) == NULL) errx(1, "failed to create SSL"); if (!tls_extension_funcs(TLSEXT_TYPE_use_srtp, &client_funcs, &server_funcs)) errx(1, "failed to fetch srtp funcs"); /* By default, we don't need this */ if (client_funcs->needs(ssl, SSL_TLSEXT_MSG_CH)) { FAIL("client should not need SRTP by default\n"); goto err; } if (SSL_set_tlsext_use_srtp(ssl, tlsext_srtp_single_profile) != 0) { FAIL("should be able to set a single SRTP\n"); goto err; } if (!client_funcs->needs(ssl, SSL_TLSEXT_MSG_CH)) { FAIL("client should need SRTP\n"); goto err; } /* Make sure we can build the client with a single profile. */ if (!client_funcs->build(ssl, SSL_TLSEXT_MSG_CH, &cbb)) { FAIL("client failed to build SRTP\n"); goto err; } if (!CBB_finish(&cbb, &data, &dlen)) errx(1, "failed to finish CBB"); if (dlen != sizeof(tlsext_srtp_single)) { FAIL("got client SRTP with length %zu, " "want length %zu\n", dlen, sizeof(tlsext_srtp_single)); compare_data(data, dlen, tlsext_srtp_single, sizeof(tlsext_srtp_single)); goto err; } if (memcmp(data, tlsext_srtp_single, dlen) != 0) { FAIL("client SRTP differs:\n"); compare_data(data, dlen, tlsext_srtp_single, sizeof(tlsext_srtp_single)); goto err; } CBB_cleanup(&cbb); if (!CBB_init(&cbb, 0)) errx(1, "Failed to create CBB"); free(data); data = NULL; /* Make sure we can parse the single profile. */ if (SSL_get_selected_srtp_profile(ssl) != NULL) { FAIL("SRTP profile should not be set yet\n"); goto err; } CBS_init(&cbs, tlsext_srtp_single, sizeof(tlsext_srtp_single)); if (!server_funcs->process(ssl, SSL_TLSEXT_MSG_CH, &cbs, &alert)) { FAIL("failed to parse SRTP\n"); goto err; } if (CBS_len(&cbs) != 0) { FAIL("extension data remaining\n"); goto err; } if ((prof = SSL_get_selected_srtp_profile(ssl)) == NULL) { FAIL("SRTP profile should be set now\n"); goto err; } if (strcmp(prof->name, tlsext_srtp_aes128cmsha80) != 0) { FAIL("SRTP profile was not set properly\n"); goto err; } if (!server_funcs->needs(ssl, SSL_TLSEXT_MSG_CH)) { FAIL("should send server extension when profile selected\n"); goto err; } /* Make sure we can build the clienthello with multiple entries. */ if (SSL_set_tlsext_use_srtp(ssl, tlsext_srtp_multiple_profiles) != 0) { FAIL("should be able to set SRTP to multiple profiles\n"); goto err; } if (!client_funcs->needs(ssl, SSL_TLSEXT_MSG_CH)) { FAIL("client should need SRTP by now\n"); goto err; } if (!client_funcs->build(ssl, SSL_TLSEXT_MSG_CH, &cbb)) { FAIL("client failed to build SRTP\n"); goto err; } if (!CBB_finish(&cbb, &data, &dlen)) errx(1, "failed to finish CBB"); if (dlen != sizeof(tlsext_srtp_multiple)) { FAIL("got client SRTP with length %zu, " "want length %zu\n", dlen, sizeof(tlsext_srtp_multiple)); compare_data(data, dlen, tlsext_srtp_multiple, sizeof(tlsext_srtp_multiple)); goto err; } if (memcmp(data, tlsext_srtp_multiple, dlen) != 0) { FAIL("client SRTP differs:\n"); compare_data(data, dlen, tlsext_srtp_multiple, sizeof(tlsext_srtp_multiple)); goto err; } CBB_cleanup(&cbb); if (!CBB_init(&cbb, 0)) errx(1, "Failed to create CBB"); free(data); data = NULL; /* Make sure we can parse multiple profiles (selects server preferred) */ ssl->srtp_profile = NULL; CBS_init(&cbs, tlsext_srtp_multiple, sizeof(tlsext_srtp_multiple)); if (!server_funcs->process(ssl, SSL_TLSEXT_MSG_CH, &cbs, &alert)) { FAIL("failed to parse SRTP\n"); goto err; } if (CBS_len(&cbs) != 0) { FAIL("extension data remaining\n"); goto err; } if ((prof = SSL_get_selected_srtp_profile(ssl)) == NULL) { FAIL("SRTP profile should be set now\n"); goto err; } if (strcmp(prof->name, tlsext_srtp_aes128cmsha80) != 0) { FAIL("SRTP profile was not set properly\n"); goto err; } if (!server_funcs->needs(ssl, SSL_TLSEXT_MSG_CH)) { FAIL("should send server extension when profile selected\n"); goto err; } /* * Make sure we can parse the clienthello with multiple entries * where one is unknown. */ ssl->srtp_profile = NULL; CBS_init(&cbs, tlsext_srtp_multiple_one_valid, sizeof(tlsext_srtp_multiple_one_valid)); if (!server_funcs->process(ssl, SSL_TLSEXT_MSG_CH, &cbs, &alert)) { FAIL("failed to parse SRTP\n"); goto err; } if (CBS_len(&cbs) != 0) { FAIL("extension data remaining\n"); goto err; } if ((prof = SSL_get_selected_srtp_profile(ssl)) == NULL) { FAIL("SRTP profile should be set now\n"); goto err; } if (strcmp(prof->name, tlsext_srtp_aes128cmsha32) != 0) { FAIL("SRTP profile was not set properly\n"); goto err; } if (!server_funcs->needs(ssl, SSL_TLSEXT_MSG_CH)) { FAIL("should send server extension when profile selected\n"); goto err; } /* Make sure we fall back to negotiated when none work. */ ssl->srtp_profile = NULL; CBS_init(&cbs, tlsext_srtp_multiple_invalid, sizeof(tlsext_srtp_multiple_invalid)); if (!server_funcs->process(ssl, SSL_TLSEXT_MSG_CH, &cbs, &alert)) { FAIL("should be able to fall back to negotiated\n"); goto err; } if (CBS_len(&cbs) != 0) { FAIL("extension data remaining\n"); goto err; } /* If we fallback, the server should NOT send the extension. */ if (SSL_get_selected_srtp_profile(ssl) != NULL) { FAIL("should not have selected a profile when none found\n"); goto err; } if (server_funcs->needs(ssl, SSL_TLSEXT_MSG_CH)) { FAIL("should not send server tlsext when no profile found\n"); goto err; } failure = 0; err: CBB_cleanup(&cbb); SSL_CTX_free(ssl_ctx); SSL_free(ssl); free(data); return (failure); } static int test_tlsext_srtp_server(void) { const SRTP_PROTECTION_PROFILE *prof; SSL_CTX *ssl_ctx = NULL; SSL *ssl = NULL; const struct tls_extension_funcs *client_funcs; const struct tls_extension_funcs *server_funcs; uint8_t *data = NULL; CBB cbb; CBS cbs; int failure, alert; size_t dlen; failure = 1; if (!CBB_init(&cbb, 0)) errx(1, "Failed to create CBB"); /* SRTP is for DTLS */ if ((ssl_ctx = SSL_CTX_new(DTLSv1_client_method())) == NULL) errx(1, "failed to create SSL_CTX"); if ((ssl = SSL_new(ssl_ctx)) == NULL) errx(1, "failed to create SSL"); if (!tls_extension_funcs(TLSEXT_TYPE_use_srtp, &client_funcs, &server_funcs)) errx(1, "failed to fetch srtp funcs"); /* By default, we don't need this */ if (server_funcs->needs(ssl, SSL_TLSEXT_MSG_SH)) { FAIL("server should not need SRTP by default\n"); goto err; } if (srtp_find_profile_by_name(tlsext_srtp_aes128cmsha80, &prof, strlen(tlsext_srtp_aes128cmsha80))) { FAIL("should be able to find the given profile\n"); goto err; } ssl->srtp_profile = prof; if (!server_funcs->needs(ssl, SSL_TLSEXT_MSG_SH)) { FAIL("server should need SRTP by now\n"); goto err; } /* Make sure we can build the server with a single profile. */ if (!server_funcs->build(ssl, SSL_TLSEXT_MSG_SH, &cbb)) { FAIL("server failed to build SRTP\n"); goto err; } if (!CBB_finish(&cbb, &data, &dlen)) errx(1, "failed to finish CBB"); if (dlen != sizeof(tlsext_srtp_single)) { FAIL("got server SRTP with length %zu, " "want length %zu\n", dlen, sizeof(tlsext_srtp_single)); compare_data(data, dlen, tlsext_srtp_single, sizeof(tlsext_srtp_single)); goto err; } if (memcmp(data, tlsext_srtp_single, dlen) != 0) { FAIL("server SRTP differs:\n"); compare_data(data, dlen, tlsext_srtp_single, sizeof(tlsext_srtp_single)); goto err; } CBB_cleanup(&cbb); if (!CBB_init(&cbb, 0)) errx(1, "Failed to create CBB"); free(data); data = NULL; /* Make sure we can parse the single profile. */ ssl->srtp_profile = NULL; if (SSL_get_selected_srtp_profile(ssl) != NULL) { FAIL("SRTP profile should not be set yet\n"); goto err; } /* Setup the environment as if a client sent a list of profiles. */ if (SSL_set_tlsext_use_srtp(ssl, tlsext_srtp_multiple_profiles) != 0) { FAIL("should be able to set multiple profiles in SRTP\n"); goto err; } CBS_init(&cbs, tlsext_srtp_single, sizeof(tlsext_srtp_single)); if (!client_funcs->process(ssl, SSL_TLSEXT_MSG_SH, &cbs, &alert)) { FAIL("failed to parse SRTP\n"); goto err; } if (CBS_len(&cbs) != 0) { FAIL("extension data remaining\n"); goto err; } if ((prof = SSL_get_selected_srtp_profile(ssl)) == NULL) { FAIL("SRTP profile should be set now\n"); goto err; } if (strcmp(prof->name, tlsext_srtp_aes128cmsha80) != 0) { FAIL("SRTP profile was not set properly\n"); goto err; } /* Make sure we cannot parse multiple profiles */ ssl->srtp_profile = NULL; CBS_init(&cbs, tlsext_srtp_multiple, sizeof(tlsext_srtp_multiple)); if (client_funcs->process(ssl, SSL_TLSEXT_MSG_SH, &cbs, &alert)) { FAIL("should not find multiple entries from the server\n"); goto err; } /* Make sure we cannot parse a server with unknown profile */ ssl->srtp_profile = NULL; CBS_init(&cbs, tlsext_srtp_single_invalid, sizeof(tlsext_srtp_single_invalid)); if (client_funcs->process(ssl, SSL_TLSEXT_MSG_SH, &cbs, &alert)) { FAIL("should not be able to parse this\n"); goto err; } failure = 0; err: CBB_cleanup(&cbb); SSL_CTX_free(ssl_ctx); SSL_free(ssl); free(data); return (failure); } #endif /* OPENSSL_NO_SRTP */ static const unsigned char tlsext_clienthello_default[] = { 0x00, 0x34, 0x00, 0x0a, 0x00, 0x0a, 0x00, 0x08, 0x00, 0x1d, 0x00, 0x17, 0x00, 0x18, 0x00, 0x19, 0x00, 0x0b, 0x00, 0x02, 0x01, 0x00, 0x00, 0x23, 0x00, 0x00, 0x00, 0x0d, 0x00, 0x18, 0x00, 0x16, 0x08, 0x06, 0x06, 0x01, 0x06, 0x03, 0x08, 0x05, 0x05, 0x01, 0x05, 0x03, 0x08, 0x04, 0x04, 0x01, 0x04, 0x03, 0x02, 0x01, 0x02, 0x03, }; /* An empty array is an incomplete type and sizeof() is undefined. */ static const unsigned char tlsext_clienthello_disabled[] = { 0x00, }; static size_t tlsext_clienthello_disabled_len = 0; static int test_tlsext_clienthello_build(void) { unsigned char *data = NULL; SSL_CTX *ssl_ctx = NULL; SSL *ssl = NULL; const struct tls_extension_funcs *client_funcs; const struct tls_extension_funcs *server_funcs; size_t dlen; int failure; CBB cbb; failure = 1; if (!CBB_init(&cbb, 0)) errx(1, "failed to create CBB"); if ((ssl_ctx = SSL_CTX_new(TLS_client_method())) == NULL) { FAIL("failed to create SSL_CTX"); goto err; } if ((ssl = SSL_new(ssl_ctx)) == NULL) { FAIL("failed to create SSL"); goto err; } if (!tlsext_linearize_build_order(ssl)) { FAIL("failed to linearize build order"); goto err; } if (!tls_extension_funcs(TLSEXT_TYPE_supported_versions, &client_funcs, &server_funcs)) errx(1, "failed to fetch supported versions funcs"); ssl->s3->hs.our_min_tls_version = TLS1_VERSION; ssl->s3->hs.our_max_tls_version = TLS1_2_VERSION; if (!tlsext_client_build(ssl, SSL_TLSEXT_MSG_CH, &cbb)) { FAIL("failed to build clienthello extensions\n"); goto err; } if (!CBB_finish(&cbb, &data, &dlen)) { FAIL("failed to finish CBB"); goto err; } if (dlen != sizeof(tlsext_clienthello_default)) { FAIL("got clienthello extensions with length %zu, " "want length %zu\n", dlen, sizeof(tlsext_clienthello_default)); compare_data(data, dlen, tlsext_clienthello_default, sizeof(tlsext_clienthello_default)); goto err; } if (memcmp(data, tlsext_clienthello_default, dlen) != 0) { FAIL("clienthello extensions differs:\n"); compare_data(data, dlen, tlsext_clienthello_default, sizeof(tlsext_clienthello_default)); goto err; } free(data); data = NULL; CBB_cleanup(&cbb); if (!CBB_init(&cbb, 0)) errx(1, "Failed to create CBB"); /* Switch to TLSv1.1, disable EC ciphers and session tickets. */ ssl->s3->hs.our_max_tls_version = TLS1_1_VERSION; if (!SSL_set_cipher_list(ssl, "TLSv1.2:!ECDHE:!ECDSA")) { FAIL("failed to set cipher list\n"); goto err; } if ((SSL_set_options(ssl, SSL_OP_NO_TICKET) & SSL_OP_NO_TICKET) == 0) { FAIL("failed to disable session tickets\n"); goto err; } if (!tlsext_client_build(ssl, SSL_TLSEXT_MSG_CH, &cbb)) { FAIL("failed to build clienthello extensions\n"); goto err; } if (!CBB_finish(&cbb, &data, &dlen)) { FAIL("failed to finish CBB"); goto err; } if (dlen != tlsext_clienthello_disabled_len) { FAIL("got clienthello extensions with length %zu, " "want length %zu\n", dlen, tlsext_clienthello_disabled_len); compare_data(data, dlen, tlsext_clienthello_disabled, tlsext_clienthello_disabled_len); goto err; } if (memcmp(data, tlsext_clienthello_disabled, dlen) != 0) { FAIL("clienthello extensions differs:\n"); compare_data(data, dlen, tlsext_clienthello_disabled, tlsext_clienthello_disabled_len); goto err; } failure = 0; err: CBB_cleanup(&cbb); SSL_CTX_free(ssl_ctx); SSL_free(ssl); free(data); return (failure); } unsigned char tlsext_serverhello_default[] = { 0x00, 0x06, 0x00, 0x2b, 0x00, 0x02, 0x03, 0x04, }; unsigned char tlsext_serverhello_enabled[] = { 0x00, 0x10, 0x00, 0x2b, 0x00, 0x02, 0x03, 0x04, 0x00, 0x0b, 0x00, 0x02, 0x01, 0x00, 0x00, 0x23, 0x00, 0x00, }; static int test_tlsext_serverhello_build(void) { unsigned char *data = NULL; SSL_CTX *ssl_ctx = NULL; SSL *ssl = NULL; size_t dlen; int failure; CBB cbb; failure = 1; if (!CBB_init(&cbb, 0)) errx(1, "failed to create CBB"); if ((ssl_ctx = SSL_CTX_new(TLS_server_method())) == NULL) { FAIL("failed to create SSL_CTX"); goto err; } if ((ssl = SSL_new(ssl_ctx)) == NULL) { FAIL("failed to create SSL"); goto err; } if (!tlsext_linearize_build_order(ssl)) { FAIL("failed to linearize build order"); goto err; } if ((ssl->session = SSL_SESSION_new()) == NULL) { FAIL("failed to create session"); goto err; } ssl->s3->hs.our_max_tls_version = TLS1_3_VERSION; ssl->s3->hs.negotiated_tls_version = TLS1_3_VERSION; ssl->s3->hs.cipher = ssl3_get_cipher_by_value(0x003c); if (!tlsext_server_build(ssl, SSL_TLSEXT_MSG_SH, &cbb)) { FAIL("failed to build serverhello extensions\n"); goto err; } if (!CBB_finish(&cbb, &data, &dlen)) { FAIL("failed to finish CBB"); goto err; } if (dlen != sizeof(tlsext_serverhello_default)) { FAIL("got serverhello extensions with length %zu, " "want length %zu\n", dlen, sizeof(tlsext_serverhello_default)); compare_data(data, dlen, tlsext_serverhello_default, sizeof(tlsext_serverhello_default)); goto err; } if (memcmp(data, tlsext_serverhello_default, dlen) != 0) { FAIL("serverhello extensions differs:\n"); compare_data(data, dlen, tlsext_serverhello_default, sizeof(tlsext_serverhello_default)); goto err; } CBB_cleanup(&cbb); free(data); data = NULL; if (!CBB_init(&cbb, 0)) errx(1, "Failed to create CBB"); /* Turn a few things on so we get extensions... */ ssl->s3->send_connection_binding = 1; ssl->s3->hs.cipher = ssl3_get_cipher_by_value(0xc027); ssl->tlsext_status_expected = 1; ssl->tlsext_ticket_expected = 1; if ((ssl->session->tlsext_ecpointformatlist = malloc(1)) == NULL) { FAIL("malloc failed"); goto err; } ssl->session->tlsext_ecpointformatlist_length = 1; ssl->session->tlsext_ecpointformatlist[0] = TLSEXT_ECPOINTFORMAT_uncompressed; if (!tlsext_server_build(ssl, SSL_TLSEXT_MSG_SH, &cbb)) { FAIL("failed to build serverhello extensions\n"); goto err; } if (!CBB_finish(&cbb, &data, &dlen)) { FAIL("failed to finish CBB"); goto err; } if (dlen != sizeof(tlsext_serverhello_enabled)) { FAIL("got serverhello extensions with length %zu, " "want length %zu\n", dlen, sizeof(tlsext_serverhello_enabled)); compare_data(data, dlen, tlsext_serverhello_enabled, sizeof(tlsext_serverhello_enabled)); goto err; } if (memcmp(data, tlsext_serverhello_enabled, dlen) != 0) { FAIL("serverhello extensions differs:\n"); compare_data(data, dlen, tlsext_serverhello_enabled, sizeof(tlsext_serverhello_enabled)); goto err; } failure = 0; err: CBB_cleanup(&cbb); SSL_CTX_free(ssl_ctx); SSL_free(ssl); free(data); return (failure); } const unsigned char tlsext_versions_client[] = { 0x08, 0x03, 0x04, 0x03, 0x03, 0x03, 0x02, 0x03, 0x01, }; const unsigned char tlsext_versions_server[] = { 0x03, 0x04, }; static int test_tlsext_versions_client(void) { unsigned char *data = NULL; SSL_CTX *ssl_ctx = NULL; SSL *ssl = NULL; const struct tls_extension_funcs *client_funcs; const struct tls_extension_funcs *server_funcs; int failure; size_t dlen; int alert; CBB cbb; CBS cbs; failure = 1; if (!CBB_init(&cbb, 0)) errx(1, "Failed to create CBB"); if ((ssl_ctx = SSL_CTX_new(TLS_client_method())) == NULL) errx(1, "failed to create SSL_CTX"); if ((ssl = SSL_new(ssl_ctx)) == NULL) errx(1, "failed to create SSL"); if (!tls_extension_funcs(TLSEXT_TYPE_supported_versions, &client_funcs, &server_funcs)) errx(1, "failed to fetch supported versions funcs"); ssl->s3->hs.our_max_tls_version = TLS1_1_VERSION; if (client_funcs->needs(ssl, SSL_TLSEXT_MSG_CH)) { FAIL("client should not need versions\n"); goto done; } ssl->s3->hs.our_max_tls_version = TLS1_2_VERSION; if (client_funcs->needs(ssl, SSL_TLSEXT_MSG_CH)) { FAIL("client should not need versions\n"); goto done; } ssl->s3->hs.our_max_tls_version = TLS1_3_VERSION; if (!client_funcs->needs(ssl, SSL_TLSEXT_MSG_CH)) { FAIL("client should need versions\n"); goto done; } ssl->s3->hs.our_min_tls_version = TLS1_VERSION; ssl->s3->hs.our_max_tls_version = TLS1_3_VERSION; if (!client_funcs->build(ssl, SSL_TLSEXT_MSG_CH, &cbb)) { FAIL("client should have built versions\n"); goto done; } if (!CBB_finish(&cbb, &data, &dlen)) { FAIL("failed to finish CBB\n"); goto done; } if (dlen != sizeof(tlsext_versions_client)) { FAIL("got versions with length %zu, " "want length %zu\n", dlen, sizeof(tlsext_versions_client)); goto done; } CBS_init(&cbs, data, dlen); if (!server_funcs->process(ssl, SSL_TLSEXT_MSG_CH, &cbs, &alert)) { FAIL("failed to parse client versions\n"); goto done; } if (CBS_len(&cbs) != 0) { FAIL("extension data remaining\n"); goto done; } failure = 0; done: CBB_cleanup(&cbb); SSL_CTX_free(ssl_ctx); SSL_free(ssl); free(data); return (failure); } static int test_tlsext_versions_server(void) { unsigned char *data = NULL; SSL_CTX *ssl_ctx = NULL; SSL *ssl = NULL; const struct tls_extension_funcs *client_funcs; const struct tls_extension_funcs *server_funcs; int failure; size_t dlen; int alert; CBB cbb; CBS cbs; failure = 1; if (!CBB_init(&cbb, 0)) errx(1, "Failed to create CBB"); if ((ssl_ctx = SSL_CTX_new(TLS_client_method())) == NULL) errx(1, "failed to create SSL_CTX"); if ((ssl = SSL_new(ssl_ctx)) == NULL) errx(1, "failed to create SSL"); if (!tls_extension_funcs(TLSEXT_TYPE_supported_versions, &client_funcs, &server_funcs)) errx(1, "failed to fetch supported versions funcs"); ssl->s3->hs.negotiated_tls_version = TLS1_2_VERSION; if (server_funcs->needs(ssl, SSL_TLSEXT_MSG_SH)) { FAIL("server should not need versions\n"); goto done; } ssl->s3->hs.negotiated_tls_version = TLS1_3_VERSION; if (!server_funcs->needs(ssl, SSL_TLSEXT_MSG_SH)) { FAIL("server should need versions\n"); goto done; } if (!server_funcs->build(ssl, SSL_TLSEXT_MSG_SH, &cbb)) { FAIL("server should have built versions\n"); goto done; } if (!CBB_finish(&cbb, &data, &dlen)) { FAIL("failed to finish CBB\n"); goto done; } if (dlen != sizeof(tlsext_versions_server)) { FAIL("got versions with length %zu, " "want length %zu\n", dlen, sizeof(tlsext_versions_server)); goto done; } CBS_init(&cbs, data, dlen); if (!client_funcs->process(ssl, SSL_TLSEXT_MSG_SH, &cbs, &alert)) { FAIL("failed to parse client versions\n"); goto done; } if (CBS_len(&cbs) != 0) { FAIL("extension data remaining\n"); goto done; } failure = 0; done: CBB_cleanup(&cbb); SSL_CTX_free(ssl_ctx); SSL_free(ssl); free(data); return (failure); } const unsigned char tlsext_keyshare_client[] = { 0x00, 0x24, 0x00, 0x1d, 0x00, 0x20, 0xba, 0x83, 0x2e, 0x4a, 0x18, 0xbe, 0x96, 0xd2, 0x71, 0x70, 0x18, 0x04, 0xf9, 0x9d, 0x76, 0x98, 0xef, 0xe8, 0x4f, 0x8b, 0x85, 0x41, 0xa4, 0xd9, 0x61, 0x57, 0xad, 0x5b, 0xa4, 0xe9, 0x8b, 0x6b, }; const unsigned char tlsext_keyshare_server[] = { 0x00, 0x1d, 0x00, 0x20, 0xe5, 0xe8, 0x5a, 0xb9, 0x7e, 0x12, 0x62, 0xe3, 0xd8, 0x7f, 0x6e, 0x3c, 0xec, 0xa6, 0x8b, 0x99, 0x45, 0x77, 0x8e, 0x11, 0xb3, 0xb9, 0x12, 0xb6, 0xbe, 0x35, 0xca, 0x51, 0x76, 0x1e, 0xe8, 0x22 }; static int test_tlsext_keyshare_client(void) { unsigned char *data = NULL; SSL_CTX *ssl_ctx = NULL; SSL *ssl = NULL; const struct tls_extension_funcs *client_funcs; const struct tls_extension_funcs *server_funcs; int failure; size_t dlen; size_t idx; int alert; CBB cbb; CBS cbs; failure = 1; if (!CBB_init(&cbb, 0)) errx(1, "Failed to create CBB"); if ((ssl_ctx = SSL_CTX_new(TLS_client_method())) == NULL) errx(1, "failed to create SSL_CTX"); if ((ssl = SSL_new(ssl_ctx)) == NULL) errx(1, "failed to create SSL"); if (!tls_extension_funcs(TLSEXT_TYPE_key_share, &client_funcs, &server_funcs)) errx(1, "failed to fetch keyshare funcs"); if ((ssl->s3->hs.key_share = tls_key_share_new_nid(NID_X25519)) == NULL) errx(1, "failed to create key share"); if (!tls_key_share_generate(ssl->s3->hs.key_share)) errx(1, "failed to generate key share"); ssl->s3->hs.our_max_tls_version = TLS1_2_VERSION; if (client_funcs->needs(ssl, SSL_TLSEXT_MSG_CH)) { FAIL("client should not need keyshare\n"); goto done; } ssl->s3->hs.our_max_tls_version = TLS1_3_VERSION; if (!client_funcs->needs(ssl, SSL_TLSEXT_MSG_CH)) { FAIL("client should need keyshare\n"); goto done; } ssl->s3->hs.our_max_tls_version = TLS1_3_VERSION; if (!client_funcs->build(ssl, SSL_TLSEXT_MSG_CH, &cbb)) { FAIL("client should have built keyshare\n"); goto done; } if (!CBB_finish(&cbb, &data, &dlen)) { FAIL("failed to finish CBB\n"); goto done; } if (dlen != sizeof(tlsext_keyshare_client)) { FAIL("got client keyshare with length %zu, " "want length %zu\n", dlen, (size_t) sizeof(tlsext_keyshare_client)); goto done; } ssl->version = TLS1_3_VERSION; /* Fake up the ssl enough so the key share can process */ tls_key_share_free(ssl->s3->hs.key_share); ssl->session = SSL_SESSION_new(); if (ssl->session == NULL) { FAIL("malloc"); goto done; } memset(ssl->s3, 0, sizeof(*ssl->s3)); ssl->session->tlsext_supportedgroups = calloc(4, sizeof(unsigned short)); if (ssl->session->tlsext_supportedgroups == NULL) { FAIL("malloc"); goto done; } ssl->session->tlsext_supportedgroups[0] = 29; ssl->session->tlsext_supportedgroups[1] = 23; ssl->session->tlsext_supportedgroups[2] = 24; ssl->session->tlsext_supportedgroups[3] = 25; ssl->session->tlsext_supportedgroups_length = 4; tls_extension_find(TLSEXT_TYPE_supported_groups, &idx); ssl->s3->hs.extensions_processed |= (1 << idx); ssl->s3->hs.extensions_seen |= (1 << idx); ssl->s3->hs.our_max_tls_version = TLS1_3_VERSION; /* * We should select the key share for group 29, when group 29 * is the most preferred group */ CBS_init(&cbs, data, dlen); if (!server_funcs->process(ssl, SSL_TLSEXT_MSG_CH, &cbs, &alert)) { FAIL("failed to process client keyshare\n"); goto done; } if (CBS_len(&cbs) != 0) { FAIL("extension data remaining\n"); goto done; } if (ssl->s3->hs.key_share == NULL) { FAIL("Did not select a key share"); goto done; } /* * Pretend the client did not send the supported groups extension. We * should fail to process. */ ssl->s3->hs.extensions_seen = 0; tls_key_share_free(ssl->s3->hs.key_share); ssl->s3->hs.key_share = NULL; CBS_init(&cbs, data, dlen); if (server_funcs->process(ssl, SSL_TLSEXT_MSG_CH, &cbs, &alert)) { FAIL("Processed key share when supported groups not provided"); goto done; } ssl->s3->hs.extensions_seen |= (1 << idx); /* * Pretend supported groups did not get processed. We should fail to * process */ ssl->s3->hs.extensions_processed = 0; ssl->s3->hs.key_share = NULL; CBS_init(&cbs, data, dlen); if (server_funcs->process(ssl, SSL_TLSEXT_MSG_CH, &cbs, &alert)) { FAIL("Processed key share when supported groups unprocesed"); goto done; } ssl->s3->hs.extensions_processed |= (1 << idx); /* * Remove group 29 by making it 0xbeef, meaning 29 has not been sent in * supported groups. This should fail to process. */ ssl->session->tlsext_supportedgroups[0] = 0xbeef; ssl->s3->hs.key_share = NULL; CBS_init(&cbs, data, dlen); if (server_funcs->process(ssl, SSL_TLSEXT_MSG_CH, &cbs, &alert)) { FAIL("Processed key share with invalid group!"); goto done; } /* * Make 29 least preferred, while server supports both 29 and 25. * Client key share is for 29 but it prefers 25. We should successfully * process, but should not select this key share. */ ssl->session->tlsext_supportedgroups[0] = 25; ssl->session->tlsext_supportedgroups[3] = 29; ssl->s3->hs.key_share = NULL; CBS_init(&cbs, data, dlen); if (!server_funcs->process(ssl, SSL_TLSEXT_MSG_CH, &cbs, &alert)) { FAIL("failed to process client keyshare\n"); goto done; } if (CBS_len(&cbs) != 0) { FAIL("extension data remaining\n"); goto done; } if (ssl->s3->hs.key_share != NULL) { FAIL("Selected a key share when I should not have!"); goto done; } ssl->session->tlsext_supportedgroups[0] = 29; ssl->session->tlsext_supportedgroups[3] = 25; failure = 0; done: CBB_cleanup(&cbb); SSL_CTX_free(ssl_ctx); SSL_free(ssl); free(data); return (failure); } static const uint8_t bogokey[] = { 0xe5, 0xe8, 0x5a, 0xb9, 0x7e, 0x12, 0x62, 0xe3, 0xd8, 0x7f, 0x6e, 0x3c, 0xec, 0xa6, 0x8b, 0x99, 0x45, 0x77, 0x8e, 0x11, 0xb3, 0xb9, 0x12, 0xb6, 0xbe, 0x35, 0xca, 0x51, 0x76, 0x1e, 0xe8, 0x22, }; static int test_tlsext_keyshare_server(void) { unsigned char *data = NULL; SSL_CTX *ssl_ctx = NULL; SSL *ssl = NULL; const struct tls_extension_funcs *client_funcs; const struct tls_extension_funcs *server_funcs; int decode_error; int failure; size_t dlen, idx; int alert; CBB cbb; CBS cbs; failure = 1; if (!CBB_init(&cbb, 0)) errx(1, "Failed to create CBB"); if ((ssl_ctx = SSL_CTX_new(TLS_client_method())) == NULL) errx(1, "failed to create SSL_CTX"); if ((ssl = SSL_new(ssl_ctx)) == NULL) errx(1, "failed to create SSL"); if (!tls_extension_funcs(TLSEXT_TYPE_key_share, &client_funcs, &server_funcs)) errx(1, "failed to fetch keyshare funcs"); ssl->s3->hs.negotiated_tls_version = TLS1_2_VERSION; if (server_funcs->needs(ssl, SSL_TLSEXT_MSG_SH)) { FAIL("server should not need keyshare\n"); goto done; } ssl->s3->hs.negotiated_tls_version = TLS1_3_VERSION; if (server_funcs->needs(ssl, SSL_TLSEXT_MSG_SH)) { FAIL("client should not need keyshare\n"); goto done; } if (tls_extension_find(TLSEXT_TYPE_key_share, &idx) == NULL) { FAIL("failed to find keyshare extension\n"); goto done; } ssl->s3->hs.extensions_seen |= (1 << idx); if (!server_funcs->needs(ssl, SSL_TLSEXT_MSG_SH)) { FAIL("server should need keyshare\n"); goto done; } if (server_funcs->build(ssl, SSL_TLSEXT_MSG_SH, &cbb)) { FAIL("server should not have built a keyshare response\n"); goto done; } if ((ssl->s3->hs.key_share = tls_key_share_new_nid(NID_X25519)) == NULL) { FAIL("failed to create key share"); goto done; } if (!tls_key_share_generate(ssl->s3->hs.key_share)) { FAIL("failed to generate key share"); goto done; } CBS_init(&cbs, bogokey, sizeof(bogokey)); if (!tls_key_share_peer_public(ssl->s3->hs.key_share, &cbs, &decode_error, NULL)) { FAIL("failed to load peer public key\n"); goto done; } if (!server_funcs->build(ssl, SSL_TLSEXT_MSG_SH, &cbb)) { FAIL("server should be able to build a keyshare response\n"); goto done; } if (!CBB_finish(&cbb, &data, &dlen)) { FAIL("failed to finish CBB\n"); goto done; } if (dlen != sizeof(tlsext_keyshare_server)) { FAIL("got server keyshare with length %zu, " "want length %zu\n", dlen, sizeof(tlsext_keyshare_server)); goto done; } tls_key_share_free(ssl->s3->hs.key_share); if ((ssl->s3->hs.key_share = tls_key_share_new_nid(NID_X25519)) == NULL) { FAIL("failed to create key share"); goto done; } if (!tls_key_share_generate(ssl->s3->hs.key_share)) { FAIL("failed to generate key share"); goto done; } CBS_init(&cbs, data, dlen); if (!client_funcs->process(ssl, SSL_TLSEXT_MSG_SH, &cbs, &alert)) { FAIL("failed to parse server keyshare\n"); goto done; } if (CBS_len(&cbs) != 0) { FAIL("extension data remaining\n"); goto done; } failure = 0; done: CBB_cleanup(&cbb); SSL_CTX_free(ssl_ctx); SSL_free(ssl); free(data); return (failure); } /* One day I hope to be the only Muppet in this codebase */ const uint8_t cookie[] = "\n" " (o)(o) \n" " m' 'm \n" " M -****- M \n" " 'm m' \n" " m''''''''''m \n" " M M BB \n"; static int test_tlsext_cookie_client(void) { unsigned char *data = NULL; SSL_CTX *ssl_ctx = NULL; SSL *ssl = NULL; const struct tls_extension_funcs *client_funcs; const struct tls_extension_funcs *server_funcs; int failure; size_t dlen; int alert; CBB cbb; CBS cbs; failure = 1; if (!CBB_init(&cbb, 0)) errx(1, "Failed to create CBB"); if ((ssl_ctx = SSL_CTX_new(TLS_client_method())) == NULL) errx(1, "failed to create SSL_CTX"); if ((ssl = SSL_new(ssl_ctx)) == NULL) errx(1, "failed to create SSL"); if (!tls_extension_funcs(TLSEXT_TYPE_cookie, &client_funcs, &server_funcs)) errx(1, "failed to fetch cookie funcs"); ssl->s3->hs.our_max_tls_version = TLS1_2_VERSION; if (client_funcs->needs(ssl, SSL_TLSEXT_MSG_CH)) { FAIL("client should not need cookie\n"); goto done; } ssl->s3->hs.our_max_tls_version = TLS1_3_VERSION; if (client_funcs->needs(ssl, SSL_TLSEXT_MSG_CH)) { FAIL("client should not need cookie\n"); goto done; } /* Normally would be set by receiving a server cookie in an HRR */ ssl->s3->hs.tls13.cookie = strdup(cookie); ssl->s3->hs.tls13.cookie_len = strlen(cookie); if (!client_funcs->needs(ssl, SSL_TLSEXT_MSG_CH)) { FAIL("client should need cookie\n"); goto done; } if (!client_funcs->build(ssl, SSL_TLSEXT_MSG_CH, &cbb)) { FAIL("client should have built a cookie response\n"); goto done; } if (!CBB_finish(&cbb, &data, &dlen)) { FAIL("failed to finish CBB\n"); goto done; } if (dlen != strlen(cookie) + sizeof(uint16_t)) { FAIL("got cookie with length %zu, " "want length %zu\n", dlen, strlen(cookie) + sizeof(uint16_t)); goto done; } CBS_init(&cbs, data, dlen); /* Checks cookie against what's in the hs.tls13 */ if (!server_funcs->process(ssl, SSL_TLSEXT_MSG_CH, &cbs, &alert)) { FAIL("failed to parse client cookie\n"); goto done; } if (CBS_len(&cbs) != 0) { FAIL("extension data remaining\n"); goto done; } failure = 0; done: CBB_cleanup(&cbb); SSL_CTX_free(ssl_ctx); SSL_free(ssl); free(data); return (failure); } static int test_tlsext_cookie_server(void) { unsigned char *data = NULL; SSL_CTX *ssl_ctx = NULL; SSL *ssl = NULL; const struct tls_extension_funcs *client_funcs; const struct tls_extension_funcs *server_funcs; int failure; size_t dlen; int alert; CBB cbb; CBS cbs; failure = 1; if (!CBB_init(&cbb, 0)) errx(1, "Failed to create CBB"); if ((ssl_ctx = SSL_CTX_new(TLS_client_method())) == NULL) errx(1, "failed to create SSL_CTX"); if ((ssl = SSL_new(ssl_ctx)) == NULL) errx(1, "failed to create SSL"); if (!tls_extension_funcs(TLSEXT_TYPE_cookie, &client_funcs, &server_funcs)) errx(1, "failed to fetch cookie funcs"); ssl->s3->hs.our_max_tls_version = TLS1_2_VERSION; if (server_funcs->needs(ssl, SSL_TLSEXT_MSG_SH)) { FAIL("server should not need cookie\n"); goto done; } ssl->s3->hs.our_max_tls_version = TLS1_3_VERSION; if (server_funcs->needs(ssl, SSL_TLSEXT_MSG_SH)) { FAIL("server should not need cookie\n"); goto done; } /* Normally would be set by server before sending HRR */ ssl->s3->hs.tls13.cookie = strdup(cookie); ssl->s3->hs.tls13.cookie_len = strlen(cookie); if (!server_funcs->needs(ssl, SSL_TLSEXT_MSG_HRR)) { FAIL("server should need cookie\n"); goto done; } if (!server_funcs->build(ssl, SSL_TLSEXT_MSG_HRR, &cbb)) { FAIL("server should have built a cookie response\n"); goto done; } if (!CBB_finish(&cbb, &data, &dlen)) { FAIL("failed to finish CBB\n"); goto done; } if (dlen != strlen(cookie) + sizeof(uint16_t)) { FAIL("got cookie with length %zu, " "want length %zu\n", dlen, strlen(cookie) + sizeof(uint16_t)); goto done; } CBS_init(&cbs, data, dlen); if (client_funcs->process(ssl, SSL_TLSEXT_MSG_SH, &cbs, &alert)) { FAIL("client should not have parsed server cookie\n"); goto done; } freezero(ssl->s3->hs.tls13.cookie, ssl->s3->hs.tls13.cookie_len); ssl->s3->hs.tls13.cookie = NULL; ssl->s3->hs.tls13.cookie_len = 0; if (!client_funcs->process(ssl, SSL_TLSEXT_MSG_SH, &cbs, &alert)) { FAIL("failed to parse server cookie\n"); goto done; } if (memcmp(cookie, ssl->s3->hs.tls13.cookie, ssl->s3->hs.tls13.cookie_len) != 0) { FAIL("parsed server cookie does not match sent cookie\n"); goto done; } if (CBS_len(&cbs) != 0) { FAIL("extension data remaining\n"); goto done; } failure = 0; done: CBB_cleanup(&cbb); SSL_CTX_free(ssl_ctx); SSL_free(ssl); free(data); return (failure); } const uint8_t tlsext_default_psk_modes[] = { 0x01, 0x01, }; const uint8_t tlsext_psk_only_mode[] = { 0x01, 0x00, }; const uint8_t tlsext_psk_both_modes[] = { 0x02, 0x00, 0x01, }; static int test_tlsext_psk_modes_client(void) { SSL_CTX *ssl_ctx = NULL; SSL *ssl = NULL; const struct tls_extension_funcs *client_funcs; const struct tls_extension_funcs *server_funcs; int failure; uint8_t *data = NULL; size_t dlen; CBB cbb; CBS cbs; int alert; failure = 1; if (!CBB_init(&cbb, 0)) errx(1, "Failed to create CBB"); if ((ssl_ctx = SSL_CTX_new(TLS_client_method())) == NULL) errx(1, "failed to create SSL_CTX"); if ((ssl = SSL_new(ssl_ctx)) == NULL) errx(1, "failed to create SSL"); if (!tls_extension_funcs(TLSEXT_TYPE_psk_kex_modes, &client_funcs, &server_funcs)) errx(1, "failed to fetch psk funcs"); /* Disabled by default. */ if (client_funcs->needs(ssl, SSL_TLSEXT_MSG_CH)) { FAIL("client should not need psk kex modes by default\n"); goto err; } /* * Prerequisites: use_psk_dhe_ke flag is set and * our_max_tls_version >= TLSv1.3. */ ssl->s3->hs.tls13.use_psk_dhe_ke = 1; ssl->s3->hs.our_max_tls_version = TLS1_2_VERSION; if (client_funcs->needs(ssl, SSL_TLSEXT_MSG_CH)) { FAIL("client should not need psk kex modes with TLSv1.2\n"); goto err; } ssl->s3->hs.tls13.use_psk_dhe_ke = 0; ssl->s3->hs.our_max_tls_version = TLS1_3_VERSION; if (client_funcs->needs(ssl, SSL_TLSEXT_MSG_CH)) { FAIL("client should not need psk kex modes without " "use_psk_dhe_ke\n"); goto err; } ssl->s3->hs.tls13.use_psk_dhe_ke = 1; ssl->s3->hs.our_max_tls_version = TLS1_3_VERSION; if (!client_funcs->needs(ssl, SSL_TLSEXT_MSG_CH)) { FAIL("client should need psk kex modes with TLSv1.3\n"); goto err; } /* Make sure we can build psk modes with DHE key establishment. */ if (!client_funcs->build(ssl, SSL_TLSEXT_MSG_CH, &cbb)) { FAIL("client failed to build psk kex modes\n"); goto err; } if (!CBB_finish(&cbb, &data, &dlen)) errx(1, "failed to finish psk kex CBB"); if (dlen != sizeof(tlsext_default_psk_modes)) { FAIL("got client psk kex modes with length %zu, " "want length %zu\n", dlen, sizeof(tlsext_default_psk_modes)); compare_data(data, dlen, tlsext_default_psk_modes, sizeof(tlsext_default_psk_modes)); goto err; } if (memcmp(data, tlsext_default_psk_modes, dlen) != 0) { FAIL("client psk kex modes differ:\n"); compare_data(data, dlen, tlsext_default_psk_modes, sizeof(tlsext_default_psk_modes)); goto err; } CBB_cleanup(&cbb); free(data); data = NULL; /* * Make sure we can parse the default psk modes and that use_psk_dhe_ke * is set after parsing. */ ssl->s3->hs.tls13.use_psk_dhe_ke = 0; CBS_init(&cbs, tlsext_default_psk_modes, sizeof(tlsext_default_psk_modes)); if (!server_funcs->process(ssl, SSL_TLSEXT_MSG_CH, &cbs, &alert)) { FAIL("failed to parse psk kex modes\n"); goto err; } if (CBS_len(&cbs) != 0) { FAIL("extension data remaining\n"); goto err; } if (ssl->s3->hs.tls13.use_psk_dhe_ke != 1) { FAIL("should have set use_psk_dhe_ke\n"); goto err; } /* * Make sure we can parse the psk-only mode and that use_psk_dhe_ke * is still not set after parsing. */ ssl->s3->hs.tls13.use_psk_dhe_ke = 0; CBS_init(&cbs, tlsext_psk_only_mode, sizeof(tlsext_psk_only_mode)); if (!server_funcs->process(ssl, SSL_TLSEXT_MSG_CH, &cbs, &alert)) { FAIL("failed to parse psk kex modes\n"); goto err; } if (CBS_len(&cbs) != 0) { FAIL("extension data remaining\n"); goto err; } if (ssl->s3->hs.tls13.use_psk_dhe_ke != 0) { FAIL("should not have set use_psk_dhe_ke\n"); goto err; } /* * Make sure we can parse the extension indicating both modes and that * use_psk_dhe_ke is set after parsing. */ ssl->s3->hs.tls13.use_psk_dhe_ke = 0; CBS_init(&cbs, tlsext_psk_both_modes, sizeof(tlsext_psk_both_modes)); if (!server_funcs->process(ssl, SSL_TLSEXT_MSG_CH, &cbs, &alert)) { FAIL("failed to parse psk kex modes\n"); goto err; } if (CBS_len(&cbs) != 0) { FAIL("extension data remaining\n"); goto err; } if (ssl->s3->hs.tls13.use_psk_dhe_ke != 1) { FAIL("should have set use_psk_dhe_ke\n"); goto err; } failure = 0; err: CBB_cleanup(&cbb); SSL_CTX_free(ssl_ctx); SSL_free(ssl); free(data); return failure; } static int test_tlsext_psk_modes_server(void) { SSL_CTX *ssl_ctx = NULL; SSL *ssl = NULL; const struct tls_extension_funcs *client_funcs; const struct tls_extension_funcs *server_funcs; int failure; failure = 1; if ((ssl_ctx = SSL_CTX_new(TLS_server_method())) == NULL) errx(1, "failed to create SSL_CTX"); if ((ssl = SSL_new(ssl_ctx)) == NULL) errx(1, "failed to create SSL"); if (!tls_extension_funcs(TLSEXT_TYPE_psk_kex_modes, &client_funcs, &server_funcs)) errx(1, "failed to fetch psk funcs"); if (server_funcs->needs(ssl, SSL_TLSEXT_MSG_SH)) { FAIL("server should not need psk kex modes\n"); goto err; } failure = 0; err: SSL_CTX_free(ssl_ctx); SSL_free(ssl); return failure; } struct tls_sni_test { const char *hostname; int is_ip; int valid; }; static const struct tls_sni_test tls_sni_tests[] = { { .hostname = "openbsd.org", .valid = 1, }, { .hostname = "op3nbsd.org", .valid = 1, }, { .hostname = "org", .valid = 1, }, { .hostname = "3openbsd.com", .valid = 1, }, { .hostname = "3-0penb-d.c-m", .valid = 1, }, { .hostname = "a", .valid = 1, }, { .hostname = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa.com", .valid = 1, }, { .hostname = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa." "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa." "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa." "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", .valid = 1, }, { .hostname = "openbsd.org.", .valid = 0, }, { .hostname = "openbsd..org", .valid = 0, }, { .hostname = "openbsd.org-", .valid = 0, }, { .hostname = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa.com", .valid = 0, }, { .hostname = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa." "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa." "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa." "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa.a", .valid = 0, }, { .hostname = "-p3nbsd.org", .valid = 0, }, { .hostname = "openbs-.org", .valid = 0, }, { .hostname = "openbsd\n.org", .valid = 0, }, { .hostname = "open_bsd.org", .valid = 0, }, { .hostname = "open\177bsd.org", .valid = 0, }, { .hostname = "open\255bsd.org", .valid = 0, }, { .hostname = "dead::beef", .is_ip = 1, .valid = 0, }, { .hostname = "192.168.0.1", .is_ip = 1, .valid = 0, }, }; #define N_TLS_SNI_TESTS (sizeof(tls_sni_tests) / sizeof(*tls_sni_tests)) static int test_tlsext_is_valid_hostname(const struct tls_sni_test *tst) { int failure; int is_ip; CBS cbs; failure = 1; CBS_init(&cbs, tst->hostname, strlen(tst->hostname)); if (tlsext_sni_is_valid_hostname(&cbs, &is_ip) != tst->valid) { if (tst->valid) { FAIL("Valid hostname '%s' rejected\n", tst->hostname); } else { FAIL("Invalid hostname '%s' accepted\n", tst->hostname); } goto done; } if (tst->is_ip != is_ip) { if (tst->is_ip) { FAIL("Hostname '%s' is an IP literal but not " "identified as one\n", tst->hostname); } else { FAIL("Hostname '%s' is not an IP literal but is " "identified as one\n", tst->hostname); } goto done; } if (tst->valid) { CBS_init(&cbs, tst->hostname, strlen(tst->hostname) + 1); if (tlsext_sni_is_valid_hostname(&cbs, &is_ip)) { FAIL("hostname with NUL byte accepted\n"); goto done; } } failure = 0; done: return failure; } static int test_tlsext_valid_hostnames(void) { const struct tls_sni_test *tst; int failure = 0; size_t i; for (i = 0; i < N_TLS_SNI_TESTS; i++) { tst = &tls_sni_tests[i]; failure |= test_tlsext_is_valid_hostname(tst); } return failure; } #define N_TLSEXT_RANDOMIZATION_TESTS 1000 static int test_tlsext_check_extension_order(SSL *ssl) { const struct tls_extension *ext; uint16_t type; size_t alpn_idx, sni_idx; size_t i; if (ssl->tlsext_build_order_len == 0) { FAIL("Unexpected zero build order length"); return 1; } ext = ssl->tlsext_build_order[ssl->tlsext_build_order_len - 1]; if ((type = tls_extension_type(ext)) != TLSEXT_TYPE_psk) { FAIL("last extension is %u, want %u\n", type, TLSEXT_TYPE_psk); return 1; } if (ssl->server) return 0; alpn_idx = sni_idx = ssl->tlsext_build_order_len; for (i = 0; i < ssl->tlsext_build_order_len; i++) { ext = ssl->tlsext_build_order[i]; if (tls_extension_type(ext) == TLSEXT_TYPE_alpn) alpn_idx = i; if (tls_extension_type(ext) == TLSEXT_TYPE_server_name) sni_idx = i; } if (alpn_idx == ssl->tlsext_build_order_len) { FAIL("could not find alpn extension\n"); return 1; } if (sni_idx == ssl->tlsext_build_order_len) { FAIL("could not find alpn extension\n"); return 1; } if (sni_idx >= alpn_idx) { FAIL("sni does not precede alpn: %zu >= %zu\n", sni_idx, alpn_idx); return 1; } return 0; } static int test_tlsext_randomized_extensions(SSL *ssl) { size_t i; int failed = 0; for (i = 0; i < N_TLSEXT_RANDOMIZATION_TESTS; i++) { if (!tlsext_randomize_build_order(ssl)) errx(1, "failed to randomize extensions"); failed |= test_tlsext_check_extension_order(ssl); } return failed; } static int test_tlsext_extension_order(void) { SSL_CTX *ssl_ctx = NULL; SSL *ssl = NULL; int failure; failure = 0; if ((ssl_ctx = SSL_CTX_new(TLS_client_method())) == NULL) errx(1, "failed to create SSL_CTX"); if ((ssl = SSL_new(ssl_ctx)) == NULL) errx(1, "failed to create SSL"); failure |= test_tlsext_randomized_extensions(ssl); SSL_CTX_free(ssl_ctx); SSL_free(ssl); if ((ssl_ctx = SSL_CTX_new(TLS_server_method())) == NULL) errx(1, "failed to create SSL_CTX"); if ((ssl = SSL_new(ssl_ctx)) == NULL) errx(1, "failed to create SSL"); failure |= test_tlsext_randomized_extensions(ssl); SSL_CTX_free(ssl_ctx); SSL_free(ssl); return failure; } int main(int argc, char **argv) { int failed = 0; SSL_library_init(); SSL_load_error_strings(); failed |= test_tlsext_alpn_client(); failed |= test_tlsext_alpn_server(); failed |= test_tlsext_supportedgroups_client(); failed |= test_tlsext_supportedgroups_server(); failed |= test_tlsext_ecpf_client(); failed |= test_tlsext_ecpf_server(); failed |= test_tlsext_ri_client(); failed |= test_tlsext_ri_server(); failed |= test_tlsext_sigalgs_client(); failed |= test_tlsext_sni_client(); failed |= test_tlsext_sni_server(); failed |= test_tlsext_ocsp_client(); failed |= test_tlsext_ocsp_server(); failed |= test_tlsext_sessionticket_client(); failed |= test_tlsext_sessionticket_server(); failed |= test_tlsext_versions_client(); failed |= test_tlsext_versions_server(); failed |= test_tlsext_keyshare_client(); failed |= test_tlsext_keyshare_server(); failed |= test_tlsext_cookie_client(); failed |= test_tlsext_cookie_server(); #ifndef OPENSSL_NO_SRTP failed |= test_tlsext_srtp_client(); failed |= test_tlsext_srtp_server(); #else fprintf(stderr, "Skipping SRTP tests due to OPENSSL_NO_SRTP\n"); #endif failed |= test_tlsext_psk_modes_client(); failed |= test_tlsext_psk_modes_server(); failed |= test_tlsext_clienthello_build(); failed |= test_tlsext_serverhello_build(); failed |= test_tlsext_valid_hostnames(); failed |= test_tlsext_quic_transport_parameters_client(); failed |= test_tlsext_quic_transport_parameters_server(); failed |= test_tlsext_extension_order(); return (failed); }