/* * SSL client with certificate authentication * * Copyright The Mbed TLS Contributors * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later */ #include "ssl_test_lib.h" #if defined(MBEDTLS_USE_PSA_CRYPTO) #include "test/psa_crypto_helpers.h" #endif #if defined(MBEDTLS_SSL_TEST_IMPOSSIBLE) int main(void) { mbedtls_printf(MBEDTLS_SSL_TEST_IMPOSSIBLE); mbedtls_exit(0); } #elif !defined(MBEDTLS_SSL_CLI_C) int main(void) { mbedtls_printf("MBEDTLS_SSL_CLI_C not defined.\n"); mbedtls_exit(0); } #else /* !MBEDTLS_SSL_TEST_IMPOSSIBLE && MBEDTLS_SSL_CLI_C */ /* Size of memory to be allocated for the heap, when using the library's memory * management and MBEDTLS_MEMORY_BUFFER_ALLOC_C is enabled. */ #define MEMORY_HEAP_SIZE 120000 #define MAX_REQUEST_SIZE 20000 #define MAX_REQUEST_SIZE_STR "20000" #define DFL_SERVER_NAME "localhost" #define DFL_SERVER_ADDR NULL #define DFL_SERVER_PORT "4433" #define DFL_REQUEST_PAGE "/" #define DFL_REQUEST_SIZE -1 #define DFL_DEBUG_LEVEL 0 #define DFL_CONTEXT_CRT_CB 0 #define DFL_NBIO 0 #define DFL_EVENT 0 #define DFL_READ_TIMEOUT 0 #define DFL_MAX_RESEND 0 #define DFL_CA_FILE "" #define DFL_CA_PATH "" #define DFL_CRT_FILE "" #define DFL_KEY_FILE "" #define DFL_KEY_OPAQUE 0 #define DFL_KEY_PWD "" #define DFL_PSK "" #define DFL_PSK_OPAQUE 0 #define DFL_PSK_IDENTITY "Client_identity" #define DFL_ECJPAKE_PW NULL #define DFL_EC_MAX_OPS -1 #define DFL_FORCE_CIPHER 0 #define DFL_RENEGOTIATION MBEDTLS_SSL_RENEGOTIATION_DISABLED #define DFL_ALLOW_LEGACY -2 #define DFL_RENEGOTIATE 0 #define DFL_EXCHANGES 1 #define DFL_MIN_VERSION -1 #define DFL_MAX_VERSION -1 #define DFL_ARC4 -1 #define DFL_SHA1 -1 #define DFL_AUTH_MODE -1 #define DFL_MFL_CODE MBEDTLS_SSL_MAX_FRAG_LEN_NONE #define DFL_TRUNC_HMAC -1 #define DFL_RECSPLIT -1 #define DFL_DHMLEN -1 #define DFL_RECONNECT 0 #define DFL_RECO_DELAY 0 #define DFL_RECO_MODE 1 #define DFL_CID_ENABLED 0 #define DFL_CID_VALUE "" #define DFL_CID_ENABLED_RENEGO -1 #define DFL_CID_VALUE_RENEGO NULL #define DFL_RECONNECT_HARD 0 #define DFL_TICKETS MBEDTLS_SSL_SESSION_TICKETS_ENABLED #define DFL_ALPN_STRING NULL #define DFL_CURVES NULL #define DFL_TRANSPORT MBEDTLS_SSL_TRANSPORT_STREAM #define DFL_HS_TO_MIN 0 #define DFL_HS_TO_MAX 0 #define DFL_DTLS_MTU -1 #define DFL_DGRAM_PACKING 1 #define DFL_FALLBACK -1 #define DFL_EXTENDED_MS -1 #define DFL_ETM -1 #define DFL_SERIALIZE 0 #define DFL_CONTEXT_FILE "" #define DFL_EXTENDED_MS_ENFORCE -1 #define DFL_CA_CALLBACK 0 #define DFL_EAP_TLS 0 #define DFL_REPRODUCIBLE 0 #define DFL_NSS_KEYLOG 0 #define DFL_NSS_KEYLOG_FILE NULL #define DFL_SKIP_CLOSE_NOTIFY 0 #define DFL_QUERY_CONFIG_MODE 0 #define DFL_USE_SRTP 0 #define DFL_SRTP_FORCE_PROFILE 0 #define DFL_SRTP_MKI "" #define GET_REQUEST "GET %s HTTP/1.0\r\nExtra-header: " #define GET_REQUEST_END "\r\n\r\n" #if defined(MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED) #define USAGE_CONTEXT_CRT_CB \ " context_crt_cb=%%d This determines whether the CRT verification callback is bound\n" \ " to the SSL configuration of the SSL context.\n" \ " Possible values:\n" \ " - 0 (default): Use CRT callback bound to configuration\n" \ " - 1: Use CRT callback bound to SSL context\n" #else #define USAGE_CONTEXT_CRT_CB "" #endif /* MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED */ #if defined(MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED) #if defined(MBEDTLS_FS_IO) #define USAGE_IO \ " ca_file=%%s The single file containing the top-level CA(s) you fully trust\n" \ " default: \"\" (pre-loaded)\n" \ " use \"none\" to skip loading any top-level CAs.\n" \ " ca_path=%%s The path containing the top-level CA(s) you fully trust\n" \ " default: \"\" (pre-loaded) (overrides ca_file)\n" \ " use \"none\" to skip loading any top-level CAs.\n" \ " crt_file=%%s Your own cert and chain (in bottom to top order, top may be omitted)\n" \ " default: \"\" (pre-loaded)\n" \ " key_file=%%s default: \"\" (pre-loaded)\n" \ " key_pwd=%%s Password for key specified by key_file argument\n" \ " default: none\n" #else #define USAGE_IO \ " No file operations available (MBEDTLS_FS_IO not defined)\n" #endif /* MBEDTLS_FS_IO */ #else /* MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED */ #define USAGE_IO "" #endif /* MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED */ #if defined(MBEDTLS_USE_PSA_CRYPTO) && defined(MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED) #define USAGE_KEY_OPAQUE \ " key_opaque=%%d Handle your private key as if it were opaque\n" \ " default: 0 (disabled)\n" #else #define USAGE_KEY_OPAQUE "" #endif #if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID) #define USAGE_CID \ " cid=%%d Disable (0) or enable (1) the use of the DTLS Connection ID extension.\n" \ " default: 0 (disabled)\n" \ " cid_renego=%%d Disable (0) or enable (1) the use of the DTLS Connection ID extension during renegotiation.\n" \ " default: same as 'cid' parameter\n" \ " cid_val=%%s The CID to use for incoming messages (in hex, without 0x).\n" \ " default: \"\"\n" \ " cid_val_renego=%%s The CID to use for incoming messages (in hex, without 0x) after renegotiation.\n" \ " default: same as 'cid_val' parameter\n" #else /* MBEDTLS_SSL_DTLS_CONNECTION_ID */ #define USAGE_CID "" #endif /* MBEDTLS_SSL_DTLS_CONNECTION_ID */ #if defined(MBEDTLS_KEY_EXCHANGE_SOME_PSK_ENABLED) #define USAGE_PSK_RAW \ " psk=%%s default: \"\" (disabled)\n" \ " The PSK values are in hex, without 0x.\n" \ " psk_identity=%%s default: \"Client_identity\"\n" #if defined(MBEDTLS_USE_PSA_CRYPTO) #define USAGE_PSK_SLOT \ " psk_opaque=%%d default: 0 (don't use opaque static PSK)\n" \ " Enable this to store the PSK configured through command line\n" \ " parameter `psk` in a PSA-based key slot.\n" \ " Note: Currently only supported in conjunction with\n" \ " the use of min_version to force TLS 1.2 and force_ciphersuite \n" \ " to force a particular PSK-only ciphersuite.\n" \ " Note: This is to test integration of PSA-based opaque PSKs with\n" \ " Mbed TLS only. Production systems are likely to configure Mbed TLS\n" \ " with prepopulated key slots instead of importing raw key material.\n" #else #define USAGE_PSK_SLOT "" #endif /* MBEDTLS_USE_PSA_CRYPTO */ #define USAGE_PSK USAGE_PSK_RAW USAGE_PSK_SLOT #else #define USAGE_PSK "" #endif /* MBEDTLS_KEY_EXCHANGE_SOME_PSK_ENABLED */ #if defined(MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK) #define USAGE_CA_CALLBACK \ " ca_callback=%%d default: 0 (disabled)\n" \ " Enable this to use the trusted certificate callback function\n" #else #define USAGE_CA_CALLBACK "" #endif /* MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK */ #if defined(MBEDTLS_SSL_SESSION_TICKETS) #define USAGE_TICKETS \ " tickets=%%d default: 1 (enabled)\n" #else #define USAGE_TICKETS "" #endif /* MBEDTLS_SSL_SESSION_TICKETS */ #if defined(MBEDTLS_SSL_EXPORT_KEYS) #define USAGE_EAP_TLS \ " eap_tls=%%d default: 0 (disabled)\n" #define USAGE_NSS_KEYLOG \ " nss_keylog=%%d default: 0 (disabled)\n" \ " This cannot be used with eap_tls=1\n" #define USAGE_NSS_KEYLOG_FILE \ " nss_keylog_file=%%s\n" #if defined(MBEDTLS_SSL_DTLS_SRTP) #define USAGE_SRTP \ " use_srtp=%%d default: 0 (disabled)\n" \ " This cannot be used with eap_tls=1 or " \ " nss_keylog=1\n" \ " srtp_force_profile=%%d default: 0 (all enabled)\n" \ " available profiles:\n" \ " 1 - SRTP_AES128_CM_HMAC_SHA1_80\n" \ " 2 - SRTP_AES128_CM_HMAC_SHA1_32\n" \ " 3 - SRTP_NULL_HMAC_SHA1_80\n" \ " 4 - SRTP_NULL_HMAC_SHA1_32\n" \ " mki=%%s default: \"\" (in hex, without 0x)\n" #else /* MBEDTLS_SSL_DTLS_SRTP */ #define USAGE_SRTP "" #endif #else /* MBEDTLS_SSL_EXPORT_KEYS */ #define USAGE_EAP_TLS "" #define USAGE_NSS_KEYLOG "" #define USAGE_NSS_KEYLOG_FILE "" #define USAGE_SRTP "" #endif /* MBEDTLS_SSL_EXPORT_KEYS */ #if defined(MBEDTLS_SSL_TRUNCATED_HMAC) #define USAGE_TRUNC_HMAC \ " trunc_hmac=%%d default: library default\n" #else #define USAGE_TRUNC_HMAC "" #endif /* MBEDTLS_SSL_TRUNCATED_HMAC */ #if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH) #define USAGE_MAX_FRAG_LEN \ " max_frag_len=%%d default: 16384 (tls default)\n" \ " options: 512, 1024, 2048, 4096\n" #else #define USAGE_MAX_FRAG_LEN "" #endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */ #if defined(MBEDTLS_SSL_CBC_RECORD_SPLITTING) #define USAGE_RECSPLIT \ " recsplit=0/1 default: (library default: on)\n" #else #define USAGE_RECSPLIT #endif #if defined(MBEDTLS_DHM_C) #define USAGE_DHMLEN \ " dhmlen=%%d default: (library default: 1024 bits)\n" #else #define USAGE_DHMLEN #endif #if defined(MBEDTLS_SSL_ALPN) #define USAGE_ALPN \ " alpn=%%s default: \"\" (disabled)\n" \ " example: spdy/1,http/1.1\n" #else #define USAGE_ALPN "" #endif /* MBEDTLS_SSL_ALPN */ #if defined(MBEDTLS_ECP_C) #define USAGE_CURVES \ " curves=a,b,c,d default: \"default\" (library default)\n" \ " example: \"secp521r1,brainpoolP512r1\"\n" \ " - use \"none\" for empty list\n" \ " - see mbedtls_ecp_curve_list()\n" \ " for acceptable curve names\n" #else #define USAGE_CURVES "" #endif #if defined(MBEDTLS_SSL_PROTO_DTLS) #define USAGE_DTLS \ " dtls=%%d default: 0 (TLS)\n" \ " hs_timeout=%%d-%%d default: (library default: 1000-60000)\n" \ " range of DTLS handshake timeouts in millisecs\n" \ " mtu=%%d default: (library default: unlimited)\n" \ " dgram_packing=%%d default: 1 (allowed)\n" \ " allow or forbid packing of multiple\n" \ " records within a single datgram.\n" #else #define USAGE_DTLS "" #endif #if defined(MBEDTLS_SSL_FALLBACK_SCSV) #define USAGE_FALLBACK \ " fallback=0/1 default: (library default: off)\n" #else #define USAGE_FALLBACK "" #endif #if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET) #define USAGE_EMS \ " extended_ms=0/1 default: (library default: on)\n" #else #define USAGE_EMS "" #endif #if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC) #define USAGE_ETM \ " etm=0/1 default: (library default: on)\n" #else #define USAGE_ETM "" #endif #define USAGE_REPRODUCIBLE \ " reproducible=0/1 default: 0 (disabled)\n" #if defined(MBEDTLS_SSL_RENEGOTIATION) #define USAGE_RENEGO \ " renegotiation=%%d default: 0 (disabled)\n" \ " renegotiate=%%d default: 0 (disabled)\n" #else #define USAGE_RENEGO "" #endif #if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) #define USAGE_ECJPAKE \ " ecjpake_pw=%%s default: none (disabled)\n" #else #define USAGE_ECJPAKE "" #endif #if defined(MBEDTLS_ECP_RESTARTABLE) #define USAGE_ECRESTART \ " ec_max_ops=%%s default: library default (restart disabled)\n" #else #define USAGE_ECRESTART "" #endif #if defined(MBEDTLS_SSL_CONTEXT_SERIALIZATION) #define USAGE_SERIALIZATION \ " serialize=%%d default: 0 (do not serialize/deserialize)\n" \ " options: 1 (serialize)\n" \ " 2 (serialize with re-initialization)\n" \ " context_file=%%s The file path to write a serialized connection\n" \ " in the form of base64 code (serialize option\n" \ " must be set)\n" \ " default: \"\" (do nothing)\n" \ " option: a file path\n" #else #define USAGE_SERIALIZATION "" #endif /* USAGE is arbitrarily split to stay under the portable string literal * length limit: 4095 bytes in C99. */ #define USAGE1 \ "\n usage: ssl_client2 param=<>...\n" \ "\n acceptable parameters:\n" \ " server_name=%%s default: localhost\n" \ " server_addr=%%s default: given by name\n" \ " server_port=%%d default: 4433\n" \ " request_page=%%s default: \".\"\n" \ " request_size=%%d default: about 34 (basic request)\n" \ " (minimum: 0, max: " MAX_REQUEST_SIZE_STR ")\n" \ " If 0, in the first exchange only an empty\n" \ " application data message is sent followed by\n" \ " a second non-empty message before attempting\n" \ " to read a response from the server\n" \ " debug_level=%%d default: 0 (disabled)\n" \ " build_version=%%d default: none (disabled)\n" \ " option: 1 (print build version only and stop)\n" \ " nbio=%%d default: 0 (blocking I/O)\n" \ " options: 1 (non-blocking), 2 (added delays)\n" \ " event=%%d default: 0 (loop)\n" \ " options: 1 (level-triggered, implies nbio=1),\n" \ " read_timeout=%%d default: 0 ms (no timeout)\n" \ " max_resend=%%d default: 0 (no resend on timeout)\n" \ " skip_close_notify=%%d default: 0 (send close_notify)\n" \ "\n" \ USAGE_DTLS \ USAGE_CID \ USAGE_SRTP \ "\n" #define USAGE2 \ " auth_mode=%%s default: (library default: none)\n" \ " options: none, optional, required\n" \ USAGE_IO \ USAGE_KEY_OPAQUE \ USAGE_CA_CALLBACK \ "\n" \ USAGE_PSK \ USAGE_ECJPAKE \ USAGE_ECRESTART \ "\n" #define USAGE3 \ " allow_legacy=%%d default: (library default: no)\n" \ USAGE_RENEGO \ " exchanges=%%d default: 1\n" \ " reconnect=%%d number of reconnections using session resumption\n" \ " default: 0 (disabled)\n" \ " reco_delay=%%d default: 0 seconds\n" \ " reco_mode=%%d 0: copy session, 1: serialize session\n" \ " default: 1\n" \ " reconnect_hard=%%d default: 0 (disabled)\n" \ USAGE_TICKETS \ USAGE_EAP_TLS \ USAGE_MAX_FRAG_LEN \ USAGE_TRUNC_HMAC \ USAGE_CONTEXT_CRT_CB \ USAGE_ALPN \ USAGE_FALLBACK \ USAGE_EMS \ USAGE_ETM \ USAGE_REPRODUCIBLE \ USAGE_CURVES \ USAGE_RECSPLIT \ USAGE_DHMLEN \ "\n" #define USAGE4 \ " arc4=%%d default: (library default: 0)\n" \ " allow_sha1=%%d default: 0\n" \ " min_version=%%s default: (library default: tls1)\n" \ " max_version=%%s default: (library default: tls12)\n" \ " force_version=%%s default: \"\" (none)\n" \ " options: ssl3, tls1, tls1_1, tls12, dtls1, dtls12\n" \ "\n" \ " force_ciphersuite= default: all enabled\n" \ " query_config= return 0 if the specified\n" \ " configuration macro is defined and 1\n" \ " otherwise. The expansion of the macro\n" \ " is printed if it is defined\n" \ USAGE_SERIALIZATION \ " acceptable ciphersuite names:\n" #define ALPN_LIST_SIZE 10 #define CURVE_LIST_SIZE 20 /* * global options */ struct options { const char *server_name; /* hostname of the server (client only) */ const char *server_addr; /* address of the server (client only) */ const char *server_port; /* port on which the ssl service runs */ int debug_level; /* level of debugging */ int nbio; /* should I/O be blocking? */ int event; /* loop or event-driven IO? level or edge triggered? */ uint32_t read_timeout; /* timeout on mbedtls_ssl_read() in milliseconds */ int max_resend; /* DTLS times to resend on read timeout */ const char *request_page; /* page on server to request */ int request_size; /* pad request with header to requested size */ const char *ca_file; /* the file with the CA certificate(s) */ const char *ca_path; /* the path with the CA certificate(s) reside */ const char *crt_file; /* the file with the client certificate */ const char *key_file; /* the file with the client key */ int key_opaque; /* handle private key as if it were opaque */ #if defined(MBEDTLS_USE_PSA_CRYPTO) int psk_opaque; #endif #if defined(MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK) int ca_callback; /* Use callback for trusted certificate list */ #endif const char *key_pwd; /* the password for the client key */ const char *psk; /* the pre-shared key */ const char *psk_identity; /* the pre-shared key identity */ const char *ecjpake_pw; /* the EC J-PAKE password */ int ec_max_ops; /* EC consecutive operations limit */ int force_ciphersuite[2]; /* protocol/ciphersuite to use, or all */ int renegotiation; /* enable / disable renegotiation */ int allow_legacy; /* allow legacy renegotiation */ int renegotiate; /* attempt renegotiation? */ int renego_delay; /* delay before enforcing renegotiation */ int exchanges; /* number of data exchanges */ int min_version; /* minimum protocol version accepted */ int max_version; /* maximum protocol version accepted */ int arc4; /* flag for arc4 suites support */ int allow_sha1; /* flag for SHA-1 support */ int auth_mode; /* verify mode for connection */ unsigned char mfl_code; /* code for maximum fragment length */ int trunc_hmac; /* negotiate truncated hmac or not */ int recsplit; /* enable record splitting? */ int dhmlen; /* minimum DHM params len in bits */ int reconnect; /* attempt to resume session */ int reco_delay; /* delay in seconds before resuming session */ int reco_mode; /* how to keep the session around */ int reconnect_hard; /* unexpectedly reconnect from the same port */ int tickets; /* enable / disable session tickets */ const char *curves; /* list of supported elliptic curves */ const char *alpn_string; /* ALPN supported protocols */ int transport; /* TLS or DTLS? */ uint32_t hs_to_min; /* Initial value of DTLS handshake timer */ uint32_t hs_to_max; /* Max value of DTLS handshake timer */ int dtls_mtu; /* UDP Maximum transport unit for DTLS */ int fallback; /* is this a fallback connection? */ int dgram_packing; /* allow/forbid datagram packing */ int extended_ms; /* negotiate extended master secret? */ int etm; /* negotiate encrypt then mac? */ int context_crt_cb; /* use context-specific CRT verify callback */ int eap_tls; /* derive EAP-TLS keying material? */ int nss_keylog; /* export NSS key log material */ const char *nss_keylog_file; /* NSS key log file */ int cid_enabled; /* whether to use the CID extension or not */ int cid_enabled_renego; /* whether to use the CID extension or not * during renegotiation */ const char *cid_val; /* the CID to use for incoming messages */ int serialize; /* serialize/deserialize connection */ const char *context_file; /* the file to write a serialized connection * in the form of base64 code (serialize * option must be set) */ const char *cid_val_renego; /* the CID to use for incoming messages * after renegotiation */ int reproducible; /* make communication reproducible */ int skip_close_notify; /* skip sending the close_notify alert */ int query_config_mode; /* whether to read config */ int use_srtp; /* Support SRTP */ int force_srtp_profile; /* SRTP protection profile to use or all */ const char *mki; /* The dtls mki value to use */ } opt; #include "ssl_test_common_source.c" #if defined(MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED) static unsigned char peer_crt_info[1024]; /* * Enabled if debug_level > 1 in code below */ static int my_verify(void *data, mbedtls_x509_crt *crt, int depth, uint32_t *flags) { char buf[1024]; ((void) data); mbedtls_x509_crt_info(buf, sizeof(buf) - 1, "", crt); if (depth == 0) { memcpy(peer_crt_info, buf, sizeof(buf)); } if (opt.debug_level == 0) { return 0; } mbedtls_printf("\nVerify requested for (Depth %d):\n", depth); mbedtls_printf("%s", buf); if ((*flags) == 0) { mbedtls_printf(" This certificate has no flags\n"); } else { mbedtls_x509_crt_verify_info(buf, sizeof(buf), " ! ", *flags); mbedtls_printf("%s\n", buf); } return 0; } #endif /* MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED */ #if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID) int report_cid_usage(mbedtls_ssl_context *ssl, const char *additional_description) { int ret; unsigned char peer_cid[MBEDTLS_SSL_CID_OUT_LEN_MAX]; size_t peer_cid_len; int cid_negotiated; if (opt.transport != MBEDTLS_SSL_TRANSPORT_DATAGRAM) { return 0; } /* Check if the use of a CID has been negotiated, * but don't ask for the CID value and length. * * Note: Here and below, we're demonstrating the various ways * in which mbedtls_ssl_get_peer_cid() can be called, * depending on whether or not the length/value of the * peer's CID is needed. * * An actual application, however, should use * just one call to mbedtls_ssl_get_peer_cid(). */ ret = mbedtls_ssl_get_peer_cid(ssl, &cid_negotiated, NULL, NULL); if (ret != 0) { mbedtls_printf(" failed\n ! mbedtls_ssl_get_peer_cid returned -0x%x\n\n", (unsigned int) -ret); return ret; } if (cid_negotiated == MBEDTLS_SSL_CID_DISABLED) { if (opt.cid_enabled == MBEDTLS_SSL_CID_ENABLED) { mbedtls_printf("(%s) Use of Connection ID was rejected by the server.\n", additional_description); } } else { size_t idx = 0; mbedtls_printf("(%s) Use of Connection ID has been negotiated.\n", additional_description); /* Ask for just the length of the peer's CID. */ ret = mbedtls_ssl_get_peer_cid(ssl, &cid_negotiated, NULL, &peer_cid_len); if (ret != 0) { mbedtls_printf(" failed\n ! mbedtls_ssl_get_peer_cid returned -0x%x\n\n", (unsigned int) -ret); return ret; } /* Ask for just length + value of the peer's CID. */ ret = mbedtls_ssl_get_peer_cid(ssl, &cid_negotiated, peer_cid, &peer_cid_len); if (ret != 0) { mbedtls_printf(" failed\n ! mbedtls_ssl_get_peer_cid returned -0x%x\n\n", (unsigned int) -ret); return ret; } mbedtls_printf("(%s) Peer CID (length %u Bytes): ", additional_description, (unsigned) peer_cid_len); while (idx < peer_cid_len) { mbedtls_printf("%02x ", peer_cid[idx]); idx++; } mbedtls_printf("\n"); } return 0; } #endif /* MBEDTLS_SSL_DTLS_CONNECTION_ID */ int main(int argc, char *argv[]) { int ret = 0, len, tail_len, i, written, frags, retry_left; int query_config_ret = 0; mbedtls_net_context server_fd; io_ctx_t io_ctx; unsigned char buf[MAX_REQUEST_SIZE + 1]; #if defined(MBEDTLS_KEY_EXCHANGE_SOME_PSK_ENABLED) unsigned char psk[MBEDTLS_PSK_MAX_LEN]; size_t psk_len = 0; #endif #if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID) unsigned char cid[MBEDTLS_SSL_CID_IN_LEN_MAX]; unsigned char cid_renego[MBEDTLS_SSL_CID_IN_LEN_MAX]; size_t cid_len = 0; size_t cid_renego_len = 0; #endif #if defined(MBEDTLS_SSL_ALPN) const char *alpn_list[ALPN_LIST_SIZE]; #endif #if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C) unsigned char alloc_buf[MEMORY_HEAP_SIZE]; #endif #if defined(MBEDTLS_ECP_C) mbedtls_ecp_group_id curve_list[CURVE_LIST_SIZE]; const mbedtls_ecp_curve_info *curve_cur; #endif #if defined(MBEDTLS_SSL_DTLS_SRTP) unsigned char mki[MBEDTLS_TLS_SRTP_MAX_MKI_LENGTH]; size_t mki_len = 0; #endif const char *pers = "ssl_client2"; #if defined(MBEDTLS_USE_PSA_CRYPTO) #if defined(MBEDTLS_KEY_EXCHANGE_SOME_PSK_ENABLED) psa_key_id_t slot = 0; psa_algorithm_t alg = 0; psa_key_attributes_t key_attributes; #endif psa_status_t status; #endif rng_context_t rng; mbedtls_ssl_context ssl; mbedtls_ssl_config conf; mbedtls_ssl_session saved_session; unsigned char *session_data = NULL; size_t session_data_len = 0; #if defined(MBEDTLS_TIMING_C) mbedtls_timing_delay_context timer; #endif #if defined(MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED) uint32_t flags; mbedtls_x509_crt cacert; mbedtls_x509_crt clicert; mbedtls_pk_context pkey; mbedtls_x509_crt_profile crt_profile_for_test = mbedtls_x509_crt_profile_default; #if defined(MBEDTLS_USE_PSA_CRYPTO) psa_key_id_t key_slot = 0; /* invalid key slot */ #endif #endif /* MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED */ char *p, *q; const int *list; #if defined(MBEDTLS_SSL_CONTEXT_SERIALIZATION) unsigned char *context_buf = NULL; size_t context_buf_len; #endif #if defined(MBEDTLS_SSL_EXPORT_KEYS) unsigned char eap_tls_keymaterial[16]; unsigned char eap_tls_iv[8]; const char *eap_tls_label = "client EAP encryption"; eap_tls_keys eap_tls_keying; #if defined(MBEDTLS_SSL_DTLS_SRTP) /*! master keys and master salt for SRTP generated during handshake */ unsigned char dtls_srtp_key_material[MBEDTLS_TLS_SRTP_MAX_KEY_MATERIAL_LENGTH]; const char *dtls_srtp_label = "EXTRACTOR-dtls_srtp"; dtls_srtp_keys dtls_srtp_keying; const mbedtls_ssl_srtp_profile default_profiles[] = { MBEDTLS_TLS_SRTP_AES128_CM_HMAC_SHA1_80, MBEDTLS_TLS_SRTP_AES128_CM_HMAC_SHA1_32, MBEDTLS_TLS_SRTP_NULL_HMAC_SHA1_80, MBEDTLS_TLS_SRTP_NULL_HMAC_SHA1_32, MBEDTLS_TLS_SRTP_UNSET }; #endif /* MBEDTLS_SSL_DTLS_SRTP */ #endif /* MBEDTLS_SSL_EXPORT_KEYS */ #if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C) mbedtls_memory_buffer_alloc_init(alloc_buf, sizeof(alloc_buf)); #endif #if defined(MBEDTLS_TEST_HOOKS) test_hooks_init(); #endif /* MBEDTLS_TEST_HOOKS */ /* * Make sure memory references are valid. */ mbedtls_net_init(&server_fd); mbedtls_ssl_init(&ssl); mbedtls_ssl_config_init(&conf); memset(&saved_session, 0, sizeof(mbedtls_ssl_session)); rng_init(&rng); #if defined(MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED) mbedtls_x509_crt_init(&cacert); mbedtls_x509_crt_init(&clicert); mbedtls_pk_init(&pkey); #endif #if defined(MBEDTLS_SSL_ALPN) memset((void *) alpn_list, 0, sizeof(alpn_list)); #endif #if defined(MBEDTLS_USE_PSA_CRYPTO) status = psa_crypto_init(); if (status != PSA_SUCCESS) { mbedtls_fprintf(stderr, "Failed to initialize PSA Crypto implementation: %d\n", (int) status); ret = MBEDTLS_ERR_SSL_HW_ACCEL_FAILED; goto exit; } #endif /* MBEDTLS_USE_PSA_CRYPTO */ #if defined(MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG) mbedtls_test_enable_insecure_external_rng(); #endif /* MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG */ if (argc < 2) { usage: if (ret == 0) { ret = 1; } mbedtls_printf(USAGE1); mbedtls_printf(USAGE2); mbedtls_printf(USAGE3); mbedtls_printf(USAGE4); list = mbedtls_ssl_list_ciphersuites(); while (*list) { mbedtls_printf(" %-42s", mbedtls_ssl_get_ciphersuite_name(*list)); list++; if (!*list) { break; } mbedtls_printf(" %s\n", mbedtls_ssl_get_ciphersuite_name(*list)); list++; } mbedtls_printf("\n"); goto exit; } opt.server_name = DFL_SERVER_NAME; opt.server_addr = DFL_SERVER_ADDR; opt.server_port = DFL_SERVER_PORT; opt.debug_level = DFL_DEBUG_LEVEL; opt.cid_enabled = DFL_CID_ENABLED; opt.cid_val = DFL_CID_VALUE; opt.cid_enabled_renego = DFL_CID_ENABLED_RENEGO; opt.cid_val_renego = DFL_CID_VALUE_RENEGO; opt.nbio = DFL_NBIO; opt.event = DFL_EVENT; opt.context_crt_cb = DFL_CONTEXT_CRT_CB; opt.read_timeout = DFL_READ_TIMEOUT; opt.max_resend = DFL_MAX_RESEND; opt.request_page = DFL_REQUEST_PAGE; opt.request_size = DFL_REQUEST_SIZE; opt.ca_file = DFL_CA_FILE; opt.ca_path = DFL_CA_PATH; opt.crt_file = DFL_CRT_FILE; opt.key_file = DFL_KEY_FILE; opt.key_opaque = DFL_KEY_OPAQUE; opt.key_pwd = DFL_KEY_PWD; opt.psk = DFL_PSK; #if defined(MBEDTLS_USE_PSA_CRYPTO) opt.psk_opaque = DFL_PSK_OPAQUE; #endif #if defined(MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK) opt.ca_callback = DFL_CA_CALLBACK; #endif opt.psk_identity = DFL_PSK_IDENTITY; opt.ecjpake_pw = DFL_ECJPAKE_PW; opt.ec_max_ops = DFL_EC_MAX_OPS; opt.force_ciphersuite[0] = DFL_FORCE_CIPHER; opt.renegotiation = DFL_RENEGOTIATION; opt.allow_legacy = DFL_ALLOW_LEGACY; opt.renegotiate = DFL_RENEGOTIATE; opt.exchanges = DFL_EXCHANGES; opt.min_version = DFL_MIN_VERSION; opt.max_version = DFL_MAX_VERSION; opt.arc4 = DFL_ARC4; opt.allow_sha1 = DFL_SHA1; opt.auth_mode = DFL_AUTH_MODE; opt.mfl_code = DFL_MFL_CODE; opt.trunc_hmac = DFL_TRUNC_HMAC; opt.recsplit = DFL_RECSPLIT; opt.dhmlen = DFL_DHMLEN; opt.reconnect = DFL_RECONNECT; opt.reco_delay = DFL_RECO_DELAY; opt.reco_mode = DFL_RECO_MODE; opt.reconnect_hard = DFL_RECONNECT_HARD; opt.tickets = DFL_TICKETS; opt.alpn_string = DFL_ALPN_STRING; opt.curves = DFL_CURVES; opt.transport = DFL_TRANSPORT; opt.hs_to_min = DFL_HS_TO_MIN; opt.hs_to_max = DFL_HS_TO_MAX; opt.dtls_mtu = DFL_DTLS_MTU; opt.fallback = DFL_FALLBACK; opt.extended_ms = DFL_EXTENDED_MS; opt.etm = DFL_ETM; opt.dgram_packing = DFL_DGRAM_PACKING; opt.serialize = DFL_SERIALIZE; opt.context_file = DFL_CONTEXT_FILE; opt.eap_tls = DFL_EAP_TLS; opt.reproducible = DFL_REPRODUCIBLE; opt.nss_keylog = DFL_NSS_KEYLOG; opt.nss_keylog_file = DFL_NSS_KEYLOG_FILE; opt.skip_close_notify = DFL_SKIP_CLOSE_NOTIFY; opt.query_config_mode = DFL_QUERY_CONFIG_MODE; opt.use_srtp = DFL_USE_SRTP; opt.force_srtp_profile = DFL_SRTP_FORCE_PROFILE; opt.mki = DFL_SRTP_MKI; for (i = 1; i < argc; i++) { p = argv[i]; if ((q = strchr(p, '=')) == NULL) { goto usage; } *q++ = '\0'; if (strcmp(p, "server_name") == 0) { opt.server_name = q; } else if (strcmp(p, "server_addr") == 0) { opt.server_addr = q; } else if (strcmp(p, "server_port") == 0) { opt.server_port = q; } else if (strcmp(p, "dtls") == 0) { int t = atoi(q); if (t == 0) { opt.transport = MBEDTLS_SSL_TRANSPORT_STREAM; } else if (t == 1) { opt.transport = MBEDTLS_SSL_TRANSPORT_DATAGRAM; } else { goto usage; } } else if (strcmp(p, "debug_level") == 0) { opt.debug_level = atoi(q); if (opt.debug_level < 0 || opt.debug_level > 65535) { goto usage; } } else if (strcmp(p, "build_version") == 0) { if (strcmp(q, "1") == 0) { mbedtls_printf("build version: %s (build %d)\n", MBEDTLS_VERSION_STRING_FULL, MBEDTLS_VERSION_NUMBER); goto exit; } } else if (strcmp(p, "context_crt_cb") == 0) { opt.context_crt_cb = atoi(q); if (opt.context_crt_cb != 0 && opt.context_crt_cb != 1) { goto usage; } } else if (strcmp(p, "nbio") == 0) { opt.nbio = atoi(q); if (opt.nbio < 0 || opt.nbio > 2) { goto usage; } } else if (strcmp(p, "event") == 0) { opt.event = atoi(q); if (opt.event < 0 || opt.event > 2) { goto usage; } } else if (strcmp(p, "read_timeout") == 0) { opt.read_timeout = atoi(q); } else if (strcmp(p, "max_resend") == 0) { opt.max_resend = atoi(q); if (opt.max_resend < 0) { goto usage; } } else if (strcmp(p, "request_page") == 0) { opt.request_page = q; } else if (strcmp(p, "request_size") == 0) { opt.request_size = atoi(q); if (opt.request_size < 0 || opt.request_size > MAX_REQUEST_SIZE) { goto usage; } } else if (strcmp(p, "ca_file") == 0) { opt.ca_file = q; } else if (strcmp(p, "ca_path") == 0) { opt.ca_path = q; } else if (strcmp(p, "crt_file") == 0) { opt.crt_file = q; } else if (strcmp(p, "key_file") == 0) { opt.key_file = q; } else if (strcmp(p, "key_pwd") == 0) { opt.key_pwd = q; } #if defined(MBEDTLS_USE_PSA_CRYPTO) && defined(MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED) else if (strcmp(p, "key_opaque") == 0) { opt.key_opaque = atoi(q); } #endif #if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID) else if (strcmp(p, "cid") == 0) { opt.cid_enabled = atoi(q); if (opt.cid_enabled != 0 && opt.cid_enabled != 1) { goto usage; } } else if (strcmp(p, "cid_renego") == 0) { opt.cid_enabled_renego = atoi(q); if (opt.cid_enabled_renego != 0 && opt.cid_enabled_renego != 1) { goto usage; } } else if (strcmp(p, "cid_val") == 0) { opt.cid_val = q; } else if (strcmp(p, "cid_val_renego") == 0) { opt.cid_val_renego = q; } #endif /* MBEDTLS_SSL_DTLS_CONNECTION_ID */ else if (strcmp(p, "psk") == 0) { opt.psk = q; } #if defined(MBEDTLS_USE_PSA_CRYPTO) else if (strcmp(p, "psk_opaque") == 0) { opt.psk_opaque = atoi(q); } #endif #if defined(MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK) else if (strcmp(p, "ca_callback") == 0) { opt.ca_callback = atoi(q); } #endif else if (strcmp(p, "psk_identity") == 0) { opt.psk_identity = q; } else if (strcmp(p, "ecjpake_pw") == 0) { opt.ecjpake_pw = q; } else if (strcmp(p, "ec_max_ops") == 0) { opt.ec_max_ops = atoi(q); } else if (strcmp(p, "force_ciphersuite") == 0) { opt.force_ciphersuite[0] = mbedtls_ssl_get_ciphersuite_id(q); if (opt.force_ciphersuite[0] == 0) { ret = 2; goto usage; } opt.force_ciphersuite[1] = 0; } else if (strcmp(p, "renegotiation") == 0) { opt.renegotiation = (atoi(q)) ? MBEDTLS_SSL_RENEGOTIATION_ENABLED : MBEDTLS_SSL_RENEGOTIATION_DISABLED; } else if (strcmp(p, "allow_legacy") == 0) { switch (atoi(q)) { case -1: opt.allow_legacy = MBEDTLS_SSL_LEGACY_BREAK_HANDSHAKE; break; case 0: opt.allow_legacy = MBEDTLS_SSL_LEGACY_NO_RENEGOTIATION; break; case 1: opt.allow_legacy = MBEDTLS_SSL_LEGACY_ALLOW_RENEGOTIATION; break; default: goto usage; } } else if (strcmp(p, "renegotiate") == 0) { opt.renegotiate = atoi(q); if (opt.renegotiate < 0 || opt.renegotiate > 1) { goto usage; } } else if (strcmp(p, "exchanges") == 0) { opt.exchanges = atoi(q); if (opt.exchanges < 1) { goto usage; } } else if (strcmp(p, "reconnect") == 0) { opt.reconnect = atoi(q); if (opt.reconnect < 0 || opt.reconnect > 2) { goto usage; } } else if (strcmp(p, "reco_delay") == 0) { opt.reco_delay = atoi(q); if (opt.reco_delay < 0) { goto usage; } } else if (strcmp(p, "reco_mode") == 0) { opt.reco_mode = atoi(q); if (opt.reco_mode < 0) { goto usage; } } else if (strcmp(p, "reconnect_hard") == 0) { opt.reconnect_hard = atoi(q); if (opt.reconnect_hard < 0 || opt.reconnect_hard > 1) { goto usage; } } else if (strcmp(p, "tickets") == 0) { opt.tickets = atoi(q); if (opt.tickets < 0 || opt.tickets > 2) { goto usage; } } else if (strcmp(p, "alpn") == 0) { opt.alpn_string = q; } else if (strcmp(p, "fallback") == 0) { switch (atoi(q)) { case 0: opt.fallback = MBEDTLS_SSL_IS_NOT_FALLBACK; break; case 1: opt.fallback = MBEDTLS_SSL_IS_FALLBACK; break; default: goto usage; } } else if (strcmp(p, "extended_ms") == 0) { switch (atoi(q)) { case 0: opt.extended_ms = MBEDTLS_SSL_EXTENDED_MS_DISABLED; break; case 1: opt.extended_ms = MBEDTLS_SSL_EXTENDED_MS_ENABLED; break; default: goto usage; } } else if (strcmp(p, "curves") == 0) { opt.curves = q; } else if (strcmp(p, "etm") == 0) { switch (atoi(q)) { case 0: opt.etm = MBEDTLS_SSL_ETM_DISABLED; break; case 1: opt.etm = MBEDTLS_SSL_ETM_ENABLED; break; default: goto usage; } } else if (strcmp(p, "min_version") == 0) { if (strcmp(q, "ssl3") == 0) { opt.min_version = MBEDTLS_SSL_MINOR_VERSION_0; } else if (strcmp(q, "tls1") == 0) { opt.min_version = MBEDTLS_SSL_MINOR_VERSION_1; } else if (strcmp(q, "tls1_1") == 0 || strcmp(q, "dtls1") == 0) { opt.min_version = MBEDTLS_SSL_MINOR_VERSION_2; } else if (strcmp(q, "tls12") == 0 || strcmp(q, "dtls12") == 0) { opt.min_version = MBEDTLS_SSL_MINOR_VERSION_3; } else { goto usage; } } else if (strcmp(p, "max_version") == 0) { if (strcmp(q, "ssl3") == 0) { opt.max_version = MBEDTLS_SSL_MINOR_VERSION_0; } else if (strcmp(q, "tls1") == 0) { opt.max_version = MBEDTLS_SSL_MINOR_VERSION_1; } else if (strcmp(q, "tls1_1") == 0 || strcmp(q, "dtls1") == 0) { opt.max_version = MBEDTLS_SSL_MINOR_VERSION_2; } else if (strcmp(q, "tls12") == 0 || strcmp(q, "dtls12") == 0) { opt.max_version = MBEDTLS_SSL_MINOR_VERSION_3; } else { goto usage; } } else if (strcmp(p, "arc4") == 0) { switch (atoi(q)) { case 0: opt.arc4 = MBEDTLS_SSL_ARC4_DISABLED; break; case 1: opt.arc4 = MBEDTLS_SSL_ARC4_ENABLED; break; default: goto usage; } } else if (strcmp(p, "allow_sha1") == 0) { switch (atoi(q)) { case 0: opt.allow_sha1 = 0; break; case 1: opt.allow_sha1 = 1; break; default: goto usage; } } else if (strcmp(p, "force_version") == 0) { if (strcmp(q, "ssl3") == 0) { opt.min_version = MBEDTLS_SSL_MINOR_VERSION_0; opt.max_version = MBEDTLS_SSL_MINOR_VERSION_0; } else if (strcmp(q, "tls1") == 0) { opt.min_version = MBEDTLS_SSL_MINOR_VERSION_1; opt.max_version = MBEDTLS_SSL_MINOR_VERSION_1; } else if (strcmp(q, "tls1_1") == 0) { opt.min_version = MBEDTLS_SSL_MINOR_VERSION_2; opt.max_version = MBEDTLS_SSL_MINOR_VERSION_2; } else if (strcmp(q, "tls12") == 0) { opt.min_version = MBEDTLS_SSL_MINOR_VERSION_3; opt.max_version = MBEDTLS_SSL_MINOR_VERSION_3; } else if (strcmp(q, "dtls1") == 0) { opt.min_version = MBEDTLS_SSL_MINOR_VERSION_2; opt.max_version = MBEDTLS_SSL_MINOR_VERSION_2; opt.transport = MBEDTLS_SSL_TRANSPORT_DATAGRAM; } else if (strcmp(q, "dtls12") == 0) { opt.min_version = MBEDTLS_SSL_MINOR_VERSION_3; opt.max_version = MBEDTLS_SSL_MINOR_VERSION_3; opt.transport = MBEDTLS_SSL_TRANSPORT_DATAGRAM; } else { goto usage; } } else if (strcmp(p, "auth_mode") == 0) { if (strcmp(q, "none") == 0) { opt.auth_mode = MBEDTLS_SSL_VERIFY_NONE; } else if (strcmp(q, "optional") == 0) { opt.auth_mode = MBEDTLS_SSL_VERIFY_OPTIONAL; } else if (strcmp(q, "required") == 0) { opt.auth_mode = MBEDTLS_SSL_VERIFY_REQUIRED; } else { goto usage; } } else if (strcmp(p, "max_frag_len") == 0) { if (strcmp(q, "512") == 0) { opt.mfl_code = MBEDTLS_SSL_MAX_FRAG_LEN_512; } else if (strcmp(q, "1024") == 0) { opt.mfl_code = MBEDTLS_SSL_MAX_FRAG_LEN_1024; } else if (strcmp(q, "2048") == 0) { opt.mfl_code = MBEDTLS_SSL_MAX_FRAG_LEN_2048; } else if (strcmp(q, "4096") == 0) { opt.mfl_code = MBEDTLS_SSL_MAX_FRAG_LEN_4096; } else { goto usage; } } else if (strcmp(p, "trunc_hmac") == 0) { switch (atoi(q)) { case 0: opt.trunc_hmac = MBEDTLS_SSL_TRUNC_HMAC_DISABLED; break; case 1: opt.trunc_hmac = MBEDTLS_SSL_TRUNC_HMAC_ENABLED; break; default: goto usage; } } else if (strcmp(p, "hs_timeout") == 0) { if ((p = strchr(q, '-')) == NULL) { goto usage; } *p++ = '\0'; opt.hs_to_min = atoi(q); opt.hs_to_max = atoi(p); if (opt.hs_to_min == 0 || opt.hs_to_max < opt.hs_to_min) { goto usage; } } else if (strcmp(p, "mtu") == 0) { opt.dtls_mtu = atoi(q); if (opt.dtls_mtu < 0) { goto usage; } } else if (strcmp(p, "dgram_packing") == 0) { opt.dgram_packing = atoi(q); if (opt.dgram_packing != 0 && opt.dgram_packing != 1) { goto usage; } } else if (strcmp(p, "recsplit") == 0) { opt.recsplit = atoi(q); if (opt.recsplit < 0 || opt.recsplit > 1) { goto usage; } } else if (strcmp(p, "dhmlen") == 0) { opt.dhmlen = atoi(q); if (opt.dhmlen < 0) { goto usage; } } else if (strcmp(p, "query_config") == 0) { opt.query_config_mode = 1; query_config_ret = query_config(q); goto exit; } else if (strcmp(p, "serialize") == 0) { opt.serialize = atoi(q); if (opt.serialize < 0 || opt.serialize > 2) { goto usage; } } else if (strcmp(p, "context_file") == 0) { opt.context_file = q; } else if (strcmp(p, "eap_tls") == 0) { opt.eap_tls = atoi(q); if (opt.eap_tls < 0 || opt.eap_tls > 1) { goto usage; } } else if (strcmp(p, "reproducible") == 0) { opt.reproducible = 1; } else if (strcmp(p, "nss_keylog") == 0) { opt.nss_keylog = atoi(q); if (opt.nss_keylog < 0 || opt.nss_keylog > 1) { goto usage; } } else if (strcmp(p, "nss_keylog_file") == 0) { opt.nss_keylog_file = q; } else if (strcmp(p, "skip_close_notify") == 0) { opt.skip_close_notify = atoi(q); if (opt.skip_close_notify < 0 || opt.skip_close_notify > 1) { goto usage; } } else if (strcmp(p, "use_srtp") == 0) { opt.use_srtp = atoi(q); } else if (strcmp(p, "srtp_force_profile") == 0) { opt.force_srtp_profile = atoi(q); } else if (strcmp(p, "mki") == 0) { opt.mki = q; } else { goto usage; } } if (opt.nss_keylog != 0 && opt.eap_tls != 0) { mbedtls_printf("Error: eap_tls and nss_keylog options cannot be used together.\n"); goto usage; } /* Event-driven IO is incompatible with the above custom * receive and send functions, as the polling builds on * refers to the underlying net_context. */ if (opt.event == 1 && opt.nbio != 1) { mbedtls_printf("Warning: event-driven IO mandates nbio=1 - overwrite\n"); opt.nbio = 1; } #if defined(MBEDTLS_DEBUG_C) mbedtls_debug_set_threshold(opt.debug_level); #endif #if defined(MBEDTLS_KEY_EXCHANGE_SOME_PSK_ENABLED) /* * Unhexify the pre-shared key if any is given */ if (strlen(opt.psk)) { if (mbedtls_test_unhexify(psk, sizeof(psk), opt.psk, &psk_len) != 0) { mbedtls_printf("pre-shared key not valid\n"); goto exit; } } #endif /* MBEDTLS_KEY_EXCHANGE_SOME_PSK_ENABLED */ #if defined(MBEDTLS_USE_PSA_CRYPTO) if (opt.psk_opaque != 0) { if (opt.psk == NULL) { mbedtls_printf("psk_opaque set but no psk to be imported specified.\n"); ret = 2; goto usage; } if (opt.force_ciphersuite[0] <= 0) { mbedtls_printf( "opaque PSKs are only supported in conjunction with forcing TLS 1.2 and a PSK-only ciphersuite through the 'force_ciphersuite' option.\n"); ret = 2; goto usage; } } #endif /* MBEDTLS_USE_PSA_CRYPTO */ if (opt.force_ciphersuite[0] > 0) { const mbedtls_ssl_ciphersuite_t *ciphersuite_info; ciphersuite_info = mbedtls_ssl_ciphersuite_from_id(opt.force_ciphersuite[0]); if (opt.max_version != -1 && ciphersuite_info->min_minor_ver > opt.max_version) { mbedtls_printf("forced ciphersuite not allowed with this protocol version\n"); ret = 2; goto usage; } if (opt.min_version != -1 && ciphersuite_info->max_minor_ver < opt.min_version) { mbedtls_printf("forced ciphersuite not allowed with this protocol version\n"); ret = 2; goto usage; } /* If the server selects a version that's not supported by * this suite, then there will be no common ciphersuite... */ if (opt.max_version == -1 || opt.max_version > ciphersuite_info->max_minor_ver) { opt.max_version = ciphersuite_info->max_minor_ver; } if (opt.min_version < ciphersuite_info->min_minor_ver) { opt.min_version = ciphersuite_info->min_minor_ver; /* DTLS starts with TLS 1.1 */ if (opt.transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM && opt.min_version < MBEDTLS_SSL_MINOR_VERSION_2) { opt.min_version = MBEDTLS_SSL_MINOR_VERSION_2; } } /* Enable RC4 if needed and not explicitly disabled */ if (ciphersuite_info->cipher == MBEDTLS_CIPHER_ARC4_128) { if (opt.arc4 == MBEDTLS_SSL_ARC4_DISABLED) { mbedtls_printf("forced RC4 ciphersuite with RC4 disabled\n"); ret = 2; goto usage; } opt.arc4 = MBEDTLS_SSL_ARC4_ENABLED; } #if defined(MBEDTLS_USE_PSA_CRYPTO) #if defined(MBEDTLS_KEY_EXCHANGE_SOME_PSK_ENABLED) if (opt.psk_opaque != 0) { /* Determine KDF algorithm the opaque PSK will be used in. */ #if defined(MBEDTLS_SHA512_C) if (ciphersuite_info->mac == MBEDTLS_MD_SHA384) { alg = PSA_ALG_TLS12_PSK_TO_MS(PSA_ALG_SHA_384); } else #endif /* MBEDTLS_SHA512_C */ alg = PSA_ALG_TLS12_PSK_TO_MS(PSA_ALG_SHA_256); } #endif /* MBEDTLS_KEY_EXCHANGE_SOME_PSK_ENABLED */ #endif /* MBEDTLS_USE_PSA_CRYPTO */ } #if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID) if (mbedtls_test_unhexify(cid, sizeof(cid), opt.cid_val, &cid_len) != 0) { mbedtls_printf("CID not valid\n"); goto exit; } /* Keep CID settings for renegotiation unless * specified otherwise. */ if (opt.cid_enabled_renego == DFL_CID_ENABLED_RENEGO) { opt.cid_enabled_renego = opt.cid_enabled; } if (opt.cid_val_renego == DFL_CID_VALUE_RENEGO) { opt.cid_val_renego = opt.cid_val; } if (mbedtls_test_unhexify(cid_renego, sizeof(cid_renego), opt.cid_val_renego, &cid_renego_len) != 0) { mbedtls_printf("CID not valid\n"); goto exit; } #endif /* MBEDTLS_SSL_DTLS_CONNECTION_ID */ #if defined(MBEDTLS_ECP_C) if (opt.curves != NULL) { p = (char *) opt.curves; i = 0; if (strcmp(p, "none") == 0) { curve_list[0] = MBEDTLS_ECP_DP_NONE; } else if (strcmp(p, "default") != 0) { /* Leave room for a final NULL in curve list */ while (i < CURVE_LIST_SIZE - 1 && *p != '\0') { q = p; /* Terminate the current string */ while (*p != ',' && *p != '\0') { p++; } if (*p == ',') { *p++ = '\0'; } if ((curve_cur = mbedtls_ecp_curve_info_from_name(q)) != NULL) { curve_list[i++] = curve_cur->grp_id; } else { mbedtls_printf("unknown curve %s\n", q); mbedtls_printf("supported curves: "); for (curve_cur = mbedtls_ecp_curve_list(); curve_cur->grp_id != MBEDTLS_ECP_DP_NONE; curve_cur++) { mbedtls_printf("%s ", curve_cur->name); } mbedtls_printf("\n"); goto exit; } } mbedtls_printf("Number of curves: %d\n", i); if (i == CURVE_LIST_SIZE - 1 && *p != '\0') { mbedtls_printf("curves list too long, maximum %d", CURVE_LIST_SIZE - 1); goto exit; } curve_list[i] = MBEDTLS_ECP_DP_NONE; } } #endif /* MBEDTLS_ECP_C */ #if defined(MBEDTLS_SSL_ALPN) if (opt.alpn_string != NULL) { p = (char *) opt.alpn_string; i = 0; /* Leave room for a final NULL in alpn_list */ while (i < ALPN_LIST_SIZE - 1 && *p != '\0') { alpn_list[i++] = p; /* Terminate the current string and move on to next one */ while (*p != ',' && *p != '\0') { p++; } if (*p == ',') { *p++ = '\0'; } } } #endif /* MBEDTLS_SSL_ALPN */ mbedtls_printf("build version: %s (build %d)\n", MBEDTLS_VERSION_STRING_FULL, MBEDTLS_VERSION_NUMBER); /* * 0. Initialize the RNG and the session data */ mbedtls_printf("\n . Seeding the random number generator..."); fflush(stdout); ret = rng_seed(&rng, opt.reproducible, pers); if (ret != 0) { goto exit; } mbedtls_printf(" ok\n"); #if defined(MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED) /* * 1.1. Load the trusted CA */ mbedtls_printf(" . Loading the CA root certificate ..."); fflush(stdout); if (strcmp(opt.ca_path, "none") == 0 || strcmp(opt.ca_file, "none") == 0) { ret = 0; } else #if defined(MBEDTLS_FS_IO) if (strlen(opt.ca_path)) { ret = mbedtls_x509_crt_parse_path(&cacert, opt.ca_path); } else if (strlen(opt.ca_file)) { ret = mbedtls_x509_crt_parse_file(&cacert, opt.ca_file); } else #endif #if defined(MBEDTLS_CERTS_C) { #if defined(MBEDTLS_PEM_PARSE_C) for (i = 0; mbedtls_test_cas[i] != NULL; i++) { ret = mbedtls_x509_crt_parse(&cacert, (const unsigned char *) mbedtls_test_cas[i], mbedtls_test_cas_len[i]); if (ret != 0) { break; } } #endif /* MBEDTLS_PEM_PARSE_C */ if (ret == 0) { for (i = 0; mbedtls_test_cas_der[i] != NULL; i++) { ret = mbedtls_x509_crt_parse_der(&cacert, (const unsigned char *) mbedtls_test_cas_der[i], mbedtls_test_cas_der_len[i]); if (ret != 0) { break; } } } } #else { ret = 1; mbedtls_printf("MBEDTLS_CERTS_C not defined."); } #endif /* MBEDTLS_CERTS_C */ if (ret < 0) { mbedtls_printf(" failed\n ! mbedtls_x509_crt_parse returned -0x%x\n\n", (unsigned int) -ret); goto exit; } mbedtls_printf(" ok (%d skipped)\n", ret); /* * 1.2. Load own certificate and private key * * (can be skipped if client authentication is not required) */ mbedtls_printf(" . Loading the client cert. and key..."); fflush(stdout); if (strcmp(opt.crt_file, "none") == 0) { ret = 0; } else #if defined(MBEDTLS_FS_IO) if (strlen(opt.crt_file)) { ret = mbedtls_x509_crt_parse_file(&clicert, opt.crt_file); } else #endif #if defined(MBEDTLS_CERTS_C) { ret = mbedtls_x509_crt_parse(&clicert, (const unsigned char *) mbedtls_test_cli_crt, mbedtls_test_cli_crt_len); } #else { ret = 1; mbedtls_printf("MBEDTLS_CERTS_C not defined."); } #endif if (ret != 0) { mbedtls_printf(" failed\n ! mbedtls_x509_crt_parse returned -0x%x\n\n", (unsigned int) -ret); goto exit; } if (strcmp(opt.key_file, "none") == 0) { ret = 0; } else #if defined(MBEDTLS_FS_IO) if (strlen(opt.key_file)) { ret = mbedtls_pk_parse_keyfile(&pkey, opt.key_file, opt.key_pwd); } else #endif #if defined(MBEDTLS_CERTS_C) { ret = mbedtls_pk_parse_key(&pkey, (const unsigned char *) mbedtls_test_cli_key, mbedtls_test_cli_key_len, NULL, 0); } #else { ret = 1; mbedtls_printf("MBEDTLS_CERTS_C not defined."); } #endif if (ret != 0) { mbedtls_printf(" failed\n ! mbedtls_pk_parse_key returned -0x%x\n\n", (unsigned int) -ret); goto exit; } #if defined(MBEDTLS_USE_PSA_CRYPTO) if (opt.key_opaque != 0) { if ((ret = mbedtls_pk_wrap_as_opaque(&pkey, &key_slot, PSA_ALG_ANY_HASH)) != 0) { mbedtls_printf(" failed\n ! " "mbedtls_pk_wrap_as_opaque returned -0x%x\n\n", (unsigned int) -ret); goto exit; } } #endif /* MBEDTLS_USE_PSA_CRYPTO */ mbedtls_printf(" ok (key type: %s)\n", mbedtls_pk_get_name(&pkey)); #endif /* MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED */ /* * 2. Start the connection */ if (opt.server_addr == NULL) { opt.server_addr = opt.server_name; } mbedtls_printf(" . Connecting to %s/%s/%s...", opt.transport == MBEDTLS_SSL_TRANSPORT_STREAM ? "tcp" : "udp", opt.server_addr, opt.server_port); fflush(stdout); if ((ret = mbedtls_net_connect(&server_fd, opt.server_addr, opt.server_port, opt.transport == MBEDTLS_SSL_TRANSPORT_STREAM ? MBEDTLS_NET_PROTO_TCP : MBEDTLS_NET_PROTO_UDP)) != 0) { mbedtls_printf(" failed\n ! mbedtls_net_connect returned -0x%x\n\n", (unsigned int) -ret); goto exit; } if (opt.nbio > 0) { ret = mbedtls_net_set_nonblock(&server_fd); } else { ret = mbedtls_net_set_block(&server_fd); } if (ret != 0) { mbedtls_printf(" failed\n ! net_set_(non)block() returned -0x%x\n\n", (unsigned int) -ret); goto exit; } mbedtls_printf(" ok\n"); /* * 3. Setup stuff */ mbedtls_printf(" . Setting up the SSL/TLS structure..."); fflush(stdout); if ((ret = mbedtls_ssl_config_defaults(&conf, MBEDTLS_SSL_IS_CLIENT, opt.transport, MBEDTLS_SSL_PRESET_DEFAULT)) != 0) { mbedtls_printf(" failed\n ! mbedtls_ssl_config_defaults returned -0x%x\n\n", (unsigned int) -ret); goto exit; } #if defined(MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED) /* The default algorithms profile disables SHA-1, but our tests still rely on it heavily. */ if (opt.allow_sha1 > 0) { crt_profile_for_test.allowed_mds |= MBEDTLS_X509_ID_FLAG(MBEDTLS_MD_SHA1); mbedtls_ssl_conf_cert_profile(&conf, &crt_profile_for_test); mbedtls_ssl_conf_sig_hashes(&conf, ssl_sig_hashes_for_test); } if (opt.context_crt_cb == 0) { mbedtls_ssl_conf_verify(&conf, my_verify, NULL); } memset(peer_crt_info, 0, sizeof(peer_crt_info)); #endif /* MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED */ #if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID) if (opt.cid_enabled == 1 || opt.cid_enabled_renego == 1) { if (opt.cid_enabled == 1 && opt.cid_enabled_renego == 1 && cid_len != cid_renego_len) { mbedtls_printf("CID length must not change during renegotiation\n"); goto usage; } if (opt.cid_enabled == 1) { ret = mbedtls_ssl_conf_cid(&conf, cid_len, MBEDTLS_SSL_UNEXPECTED_CID_IGNORE); } else { ret = mbedtls_ssl_conf_cid(&conf, cid_renego_len, MBEDTLS_SSL_UNEXPECTED_CID_IGNORE); } if (ret != 0) { mbedtls_printf(" failed\n ! mbedtls_ssl_conf_cid_len returned -%#04x\n\n", (unsigned int) -ret); goto exit; } } #endif /* MBEDTLS_SSL_DTLS_CONNECTION_ID */ if (opt.auth_mode != DFL_AUTH_MODE) { mbedtls_ssl_conf_authmode(&conf, opt.auth_mode); } #if defined(MBEDTLS_SSL_PROTO_DTLS) if (opt.hs_to_min != DFL_HS_TO_MIN || opt.hs_to_max != DFL_HS_TO_MAX) { mbedtls_ssl_conf_handshake_timeout(&conf, opt.hs_to_min, opt.hs_to_max); } if (opt.dgram_packing != DFL_DGRAM_PACKING) { mbedtls_ssl_set_datagram_packing(&ssl, opt.dgram_packing); } #endif /* MBEDTLS_SSL_PROTO_DTLS */ #if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH) if ((ret = mbedtls_ssl_conf_max_frag_len(&conf, opt.mfl_code)) != 0) { mbedtls_printf(" failed\n ! mbedtls_ssl_conf_max_frag_len returned %d\n\n", ret); goto exit; } #endif #if defined(MBEDTLS_SSL_DTLS_SRTP) const mbedtls_ssl_srtp_profile forced_profile[] = { opt.force_srtp_profile, MBEDTLS_TLS_SRTP_UNSET }; if (opt.use_srtp == 1) { if (opt.force_srtp_profile != 0) { ret = mbedtls_ssl_conf_dtls_srtp_protection_profiles(&conf, forced_profile); } else { ret = mbedtls_ssl_conf_dtls_srtp_protection_profiles(&conf, default_profiles); } if (ret != 0) { mbedtls_printf(" failed\n ! " "mbedtls_ssl_conf_dtls_srtp_protection_profiles returned %d\n\n", ret); goto exit; } } else if (opt.force_srtp_profile != 0) { mbedtls_printf(" failed\n ! must enable use_srtp to force srtp profile\n\n"); goto exit; } #endif /* MBEDTLS_SSL_DTLS_SRTP */ #if defined(MBEDTLS_SSL_TRUNCATED_HMAC) if (opt.trunc_hmac != DFL_TRUNC_HMAC) { mbedtls_ssl_conf_truncated_hmac(&conf, opt.trunc_hmac); } #endif #if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET) if (opt.extended_ms != DFL_EXTENDED_MS) { mbedtls_ssl_conf_extended_master_secret(&conf, opt.extended_ms); } #endif #if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC) if (opt.etm != DFL_ETM) { mbedtls_ssl_conf_encrypt_then_mac(&conf, opt.etm); } #endif #if defined(MBEDTLS_SSL_EXPORT_KEYS) if (opt.eap_tls != 0) { mbedtls_ssl_conf_export_keys_ext_cb(&conf, eap_tls_key_derivation, &eap_tls_keying); } else if (opt.nss_keylog != 0) { mbedtls_ssl_conf_export_keys_ext_cb(&conf, nss_keylog_export, NULL); } #if defined(MBEDTLS_SSL_DTLS_SRTP) else if (opt.use_srtp != 0) { mbedtls_ssl_conf_export_keys_ext_cb(&conf, dtls_srtp_key_derivation, &dtls_srtp_keying); } #endif /* MBEDTLS_SSL_DTLS_SRTP */ #endif /* MBEDTLS_SSL_EXPORT_KEYS */ #if defined(MBEDTLS_SSL_CBC_RECORD_SPLITTING) if (opt.recsplit != DFL_RECSPLIT) { mbedtls_ssl_conf_cbc_record_splitting(&conf, opt.recsplit ? MBEDTLS_SSL_CBC_RECORD_SPLITTING_ENABLED : MBEDTLS_SSL_CBC_RECORD_SPLITTING_DISABLED); } #endif #if defined(MBEDTLS_DHM_C) if (opt.dhmlen != DFL_DHMLEN) { mbedtls_ssl_conf_dhm_min_bitlen(&conf, opt.dhmlen); } #endif #if defined(MBEDTLS_SSL_ALPN) if (opt.alpn_string != NULL) { if ((ret = mbedtls_ssl_conf_alpn_protocols(&conf, alpn_list)) != 0) { mbedtls_printf(" failed\n ! mbedtls_ssl_conf_alpn_protocols returned %d\n\n", ret); goto exit; } } #endif if (opt.reproducible) { #if defined(MBEDTLS_HAVE_TIME) #if defined(MBEDTLS_PLATFORM_TIME_ALT) mbedtls_platform_set_time(dummy_constant_time); #else fprintf(stderr, "Warning: reproducible option used without constant time\n"); #endif #endif /* MBEDTLS_HAVE_TIME */ } mbedtls_ssl_conf_rng(&conf, rng_get, &rng); mbedtls_ssl_conf_dbg(&conf, my_debug, stdout); mbedtls_ssl_conf_read_timeout(&conf, opt.read_timeout); #if defined(MBEDTLS_SSL_SESSION_TICKETS) mbedtls_ssl_conf_session_tickets(&conf, opt.tickets); #endif if (opt.force_ciphersuite[0] != DFL_FORCE_CIPHER) { mbedtls_ssl_conf_ciphersuites(&conf, opt.force_ciphersuite); } #if defined(MBEDTLS_ARC4_C) if (opt.arc4 != DFL_ARC4) { mbedtls_ssl_conf_arc4_support(&conf, opt.arc4); } #endif if (opt.allow_legacy != DFL_ALLOW_LEGACY) { mbedtls_ssl_conf_legacy_renegotiation(&conf, opt.allow_legacy); } #if defined(MBEDTLS_SSL_RENEGOTIATION) mbedtls_ssl_conf_renegotiation(&conf, opt.renegotiation); #endif #if defined(MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED) if (strcmp(opt.ca_path, "none") != 0 && strcmp(opt.ca_file, "none") != 0) { #if defined(MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK) if (opt.ca_callback != 0) { mbedtls_ssl_conf_ca_cb(&conf, ca_callback, &cacert); } else #endif mbedtls_ssl_conf_ca_chain(&conf, &cacert, NULL); } if (strcmp(opt.crt_file, "none") != 0 && strcmp(opt.key_file, "none") != 0) { if ((ret = mbedtls_ssl_conf_own_cert(&conf, &clicert, &pkey)) != 0) { mbedtls_printf(" failed\n ! mbedtls_ssl_conf_own_cert returned %d\n\n", ret); goto exit; } } #endif /* MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED */ #if defined(MBEDTLS_ECP_C) if (opt.curves != NULL && strcmp(opt.curves, "default") != 0) { mbedtls_ssl_conf_curves(&conf, curve_list); } #endif #if defined(MBEDTLS_KEY_EXCHANGE_SOME_PSK_ENABLED) #if defined(MBEDTLS_USE_PSA_CRYPTO) if (opt.psk_opaque != 0) { key_attributes = psa_key_attributes_init(); psa_set_key_usage_flags(&key_attributes, PSA_KEY_USAGE_DERIVE); psa_set_key_algorithm(&key_attributes, alg); psa_set_key_type(&key_attributes, PSA_KEY_TYPE_DERIVE); status = psa_import_key(&key_attributes, psk, psk_len, &slot); if (status != PSA_SUCCESS) { ret = MBEDTLS_ERR_SSL_HW_ACCEL_FAILED; goto exit; } if ((ret = mbedtls_ssl_conf_psk_opaque(&conf, slot, (const unsigned char *) opt.psk_identity, strlen(opt.psk_identity))) != 0) { mbedtls_printf(" failed\n ! mbedtls_ssl_conf_psk_opaque returned %d\n\n", ret); goto exit; } } else #endif /* MBEDTLS_USE_PSA_CRYPTO */ if (psk_len > 0) { ret = mbedtls_ssl_conf_psk(&conf, psk, psk_len, (const unsigned char *) opt.psk_identity, strlen(opt.psk_identity)); if (ret != 0) { mbedtls_printf(" failed\n ! mbedtls_ssl_conf_psk returned %d\n\n", ret); goto exit; } } #endif /* MBEDTLS_KEY_EXCHANGE_SOME_PSK_ENABLED */ if (opt.min_version != DFL_MIN_VERSION) { mbedtls_ssl_conf_min_version(&conf, MBEDTLS_SSL_MAJOR_VERSION_3, opt.min_version); } if (opt.max_version != DFL_MAX_VERSION) { mbedtls_ssl_conf_max_version(&conf, MBEDTLS_SSL_MAJOR_VERSION_3, opt.max_version); } #if defined(MBEDTLS_SSL_FALLBACK_SCSV) if (opt.fallback != DFL_FALLBACK) { mbedtls_ssl_conf_fallback(&conf, opt.fallback); } #endif if ((ret = mbedtls_ssl_setup(&ssl, &conf)) != 0) { mbedtls_printf(" failed\n ! mbedtls_ssl_setup returned -0x%x\n\n", (unsigned int) -ret); goto exit; } #if defined(MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED) if ((ret = mbedtls_ssl_set_hostname(&ssl, opt.server_name)) != 0) { mbedtls_printf(" failed\n ! mbedtls_ssl_set_hostname returned %d\n\n", ret); goto exit; } #endif #if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) if (opt.ecjpake_pw != DFL_ECJPAKE_PW) { if ((ret = mbedtls_ssl_set_hs_ecjpake_password(&ssl, (const unsigned char *) opt.ecjpake_pw, strlen(opt.ecjpake_pw))) != 0) { mbedtls_printf(" failed\n ! mbedtls_ssl_set_hs_ecjpake_password returned %d\n\n", ret); goto exit; } } #endif #if defined(MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED) if (opt.context_crt_cb == 1) { mbedtls_ssl_set_verify(&ssl, my_verify, NULL); } #endif /* MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED */ io_ctx.ssl = &ssl; io_ctx.net = &server_fd; mbedtls_ssl_set_bio(&ssl, &io_ctx, send_cb, recv_cb, opt.nbio == 0 ? recv_timeout_cb : NULL); #if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID) if (opt.transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM) { if ((ret = mbedtls_ssl_set_cid(&ssl, opt.cid_enabled, cid, cid_len)) != 0) { mbedtls_printf(" failed\n ! mbedtls_ssl_set_cid returned %d\n\n", ret); goto exit; } } #endif /* MBEDTLS_SSL_DTLS_CONNECTION_ID */ #if defined(MBEDTLS_SSL_PROTO_DTLS) if (opt.dtls_mtu != DFL_DTLS_MTU) { mbedtls_ssl_set_mtu(&ssl, opt.dtls_mtu); } #endif #if defined(MBEDTLS_TIMING_C) mbedtls_ssl_set_timer_cb(&ssl, &timer, mbedtls_timing_set_delay, mbedtls_timing_get_delay); #endif #if defined(MBEDTLS_ECP_RESTARTABLE) if (opt.ec_max_ops != DFL_EC_MAX_OPS) { mbedtls_ecp_set_max_ops(opt.ec_max_ops); } #endif #if defined(MBEDTLS_SSL_DTLS_SRTP) if (opt.use_srtp != 0 && strlen(opt.mki) != 0) { if (mbedtls_test_unhexify(mki, sizeof(mki), opt.mki, &mki_len) != 0) { mbedtls_printf("mki value not valid hex\n"); goto exit; } mbedtls_ssl_conf_srtp_mki_value_supported(&conf, MBEDTLS_SSL_DTLS_SRTP_MKI_SUPPORTED); if ((ret = mbedtls_ssl_dtls_srtp_set_mki_value(&ssl, mki, (uint16_t) strlen(opt.mki) / 2)) != 0) { mbedtls_printf(" failed\n ! mbedtls_ssl_dtls_srtp_set_mki_value returned %d\n\n", ret); goto exit; } } #endif mbedtls_printf(" ok\n"); /* * 4. Handshake */ mbedtls_printf(" . Performing the SSL/TLS handshake..."); fflush(stdout); while ((ret = mbedtls_ssl_handshake(&ssl)) != 0) { if (ret != MBEDTLS_ERR_SSL_WANT_READ && ret != MBEDTLS_ERR_SSL_WANT_WRITE && ret != MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS) { mbedtls_printf(" failed\n ! mbedtls_ssl_handshake returned -0x%x\n", (unsigned int) -ret); if (ret == MBEDTLS_ERR_X509_CERT_VERIFY_FAILED) { mbedtls_printf( " Unable to verify the server's certificate. " "Either it is invalid,\n" " or you didn't set ca_file or ca_path " "to an appropriate value.\n" " Alternatively, you may want to use " "auth_mode=optional for testing purposes.\n"); } mbedtls_printf("\n"); goto exit; } #if defined(MBEDTLS_ECP_RESTARTABLE) if (ret == MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS) { continue; } #endif /* For event-driven IO, wait for socket to become available */ if (opt.event == 1 /* level triggered IO */) { #if defined(MBEDTLS_TIMING_C) ret = idle(&server_fd, &timer, ret); #else ret = idle(&server_fd, ret); #endif if (ret != 0) { goto exit; } } } mbedtls_printf(" ok\n [ Protocol is %s ]\n [ Ciphersuite is %s ]\n", mbedtls_ssl_get_version(&ssl), mbedtls_ssl_get_ciphersuite(&ssl)); if ((ret = mbedtls_ssl_get_record_expansion(&ssl)) >= 0) { mbedtls_printf(" [ Record expansion is %d ]\n", ret); } else { mbedtls_printf(" [ Record expansion is unknown (compression) ]\n"); } #if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH) mbedtls_printf(" [ Maximum input fragment length is %u ]\n", (unsigned int) mbedtls_ssl_get_input_max_frag_len(&ssl)); mbedtls_printf(" [ Maximum output fragment length is %u ]\n", (unsigned int) mbedtls_ssl_get_output_max_frag_len(&ssl)); #endif #if defined(MBEDTLS_SSL_ALPN) if (opt.alpn_string != NULL) { const char *alp = mbedtls_ssl_get_alpn_protocol(&ssl); mbedtls_printf(" [ Application Layer Protocol is %s ]\n", alp ? alp : "(none)"); } #endif #if defined(MBEDTLS_SSL_EXPORT_KEYS) if (opt.eap_tls != 0) { size_t j = 0; if ((ret = mbedtls_ssl_tls_prf(eap_tls_keying.tls_prf_type, eap_tls_keying.master_secret, sizeof(eap_tls_keying.master_secret), eap_tls_label, eap_tls_keying.randbytes, sizeof(eap_tls_keying.randbytes), eap_tls_keymaterial, sizeof(eap_tls_keymaterial))) != 0) { mbedtls_printf(" failed\n ! mbedtls_ssl_tls_prf returned -0x%x\n\n", (unsigned int) -ret); goto exit; } mbedtls_printf(" EAP-TLS key material is:"); for (j = 0; j < sizeof(eap_tls_keymaterial); j++) { if (j % 8 == 0) { mbedtls_printf("\n "); } mbedtls_printf("%02x ", eap_tls_keymaterial[j]); } mbedtls_printf("\n"); if ((ret = mbedtls_ssl_tls_prf(eap_tls_keying.tls_prf_type, NULL, 0, eap_tls_label, eap_tls_keying.randbytes, sizeof(eap_tls_keying.randbytes), eap_tls_iv, sizeof(eap_tls_iv))) != 0) { mbedtls_printf(" failed\n ! mbedtls_ssl_tls_prf returned -0x%x\n\n", (unsigned int) -ret); goto exit; } mbedtls_printf(" EAP-TLS IV is:"); for (j = 0; j < sizeof(eap_tls_iv); j++) { if (j % 8 == 0) { mbedtls_printf("\n "); } mbedtls_printf("%02x ", eap_tls_iv[j]); } mbedtls_printf("\n"); } #if defined(MBEDTLS_SSL_DTLS_SRTP) else if (opt.use_srtp != 0) { size_t j = 0; mbedtls_dtls_srtp_info dtls_srtp_negotiation_result; mbedtls_ssl_get_dtls_srtp_negotiation_result(&ssl, &dtls_srtp_negotiation_result); if (dtls_srtp_negotiation_result.chosen_dtls_srtp_profile == MBEDTLS_TLS_SRTP_UNSET) { mbedtls_printf(" Unable to negotiate " "the use of DTLS-SRTP\n"); } else { if ((ret = mbedtls_ssl_tls_prf(dtls_srtp_keying.tls_prf_type, dtls_srtp_keying.master_secret, sizeof(dtls_srtp_keying.master_secret), dtls_srtp_label, dtls_srtp_keying.randbytes, sizeof(dtls_srtp_keying.randbytes), dtls_srtp_key_material, sizeof(dtls_srtp_key_material))) != 0) { mbedtls_printf(" failed\n ! mbedtls_ssl_tls_prf returned -0x%x\n\n", (unsigned int) -ret); goto exit; } mbedtls_printf(" DTLS-SRTP key material is:"); for (j = 0; j < sizeof(dtls_srtp_key_material); j++) { if (j % 8 == 0) { mbedtls_printf("\n "); } mbedtls_printf("%02x ", dtls_srtp_key_material[j]); } mbedtls_printf("\n"); /* produce a less readable output used to perform automatic checks * - compare client and server output * - interop test with openssl which client produces this kind of output */ mbedtls_printf(" Keying material: "); for (j = 0; j < sizeof(dtls_srtp_key_material); j++) { mbedtls_printf("%02X", dtls_srtp_key_material[j]); } mbedtls_printf("\n"); if (dtls_srtp_negotiation_result.mki_len > 0) { mbedtls_printf(" DTLS-SRTP mki value: "); for (j = 0; j < dtls_srtp_negotiation_result.mki_len; j++) { mbedtls_printf("%02X", dtls_srtp_negotiation_result.mki_value[j]); } } else { mbedtls_printf(" DTLS-SRTP no mki value negotiated"); } mbedtls_printf("\n"); } } #endif /* MBEDTLS_SSL_DTLS_SRTP */ #endif /* MBEDTLS_SSL_EXPORT_KEYS */ if (opt.reconnect != 0) { mbedtls_printf(" . Saving session for reuse..."); fflush(stdout); if (opt.reco_mode == 1) { /* free any previously saved data */ if (session_data != NULL) { mbedtls_platform_zeroize(session_data, session_data_len); mbedtls_free(session_data); session_data = NULL; } /* get size of the buffer needed */ mbedtls_ssl_session_save(mbedtls_ssl_get_session_pointer(&ssl), NULL, 0, &session_data_len); session_data = mbedtls_calloc(1, session_data_len); if (session_data == NULL) { mbedtls_printf(" failed\n ! alloc %u bytes for session data\n", (unsigned) session_data_len); ret = MBEDTLS_ERR_SSL_ALLOC_FAILED; goto exit; } /* actually save session data */ if ((ret = mbedtls_ssl_session_save(mbedtls_ssl_get_session_pointer(&ssl), session_data, session_data_len, &session_data_len)) != 0) { mbedtls_printf(" failed\n ! mbedtls_ssl_session_saved returned -0x%04x\n\n", (unsigned int) -ret); goto exit; } } else { if ((ret = mbedtls_ssl_get_session(&ssl, &saved_session)) != 0) { mbedtls_printf(" failed\n ! mbedtls_ssl_get_session returned -0x%x\n\n", (unsigned int) -ret); goto exit; } } mbedtls_printf(" ok\n"); if (opt.reco_mode == 1) { mbedtls_printf(" [ Saved %u bytes of session data]\n", (unsigned) session_data_len); } } #if defined(MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED) /* * 5. Verify the server certificate */ mbedtls_printf(" . Verifying peer X.509 certificate..."); if ((flags = mbedtls_ssl_get_verify_result(&ssl)) != 0) { char vrfy_buf[512]; mbedtls_printf(" failed\n"); mbedtls_x509_crt_verify_info(vrfy_buf, sizeof(vrfy_buf), " ! ", flags); mbedtls_printf("%s\n", vrfy_buf); } else { mbedtls_printf(" ok\n"); } mbedtls_printf(" . Peer certificate information ...\n"); mbedtls_printf("%s\n", peer_crt_info); #endif /* MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED */ #if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID) ret = report_cid_usage(&ssl, "initial handshake"); if (ret != 0) { goto exit; } if (opt.transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM) { if ((ret = mbedtls_ssl_set_cid(&ssl, opt.cid_enabled_renego, cid_renego, cid_renego_len)) != 0) { mbedtls_printf(" failed\n ! mbedtls_ssl_set_cid returned %d\n\n", ret); goto exit; } } #endif /* MBEDTLS_SSL_DTLS_CONNECTION_ID */ #if defined(MBEDTLS_SSL_RENEGOTIATION) if (opt.renegotiate) { /* * Perform renegotiation (this must be done when the server is waiting * for input from our side). */ mbedtls_printf(" . Performing renegotiation..."); fflush(stdout); while ((ret = mbedtls_ssl_renegotiate(&ssl)) != 0) { if (ret != MBEDTLS_ERR_SSL_WANT_READ && ret != MBEDTLS_ERR_SSL_WANT_WRITE && ret != MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS) { mbedtls_printf(" failed\n ! mbedtls_ssl_renegotiate returned %d\n\n", ret); goto exit; } #if defined(MBEDTLS_ECP_RESTARTABLE) if (ret == MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS) { continue; } #endif /* For event-driven IO, wait for socket to become available */ if (opt.event == 1 /* level triggered IO */) { #if defined(MBEDTLS_TIMING_C) idle(&server_fd, &timer, ret); #else idle(&server_fd, ret); #endif } } mbedtls_printf(" ok\n"); } #endif /* MBEDTLS_SSL_RENEGOTIATION */ #if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID) ret = report_cid_usage(&ssl, "after renegotiation"); if (ret != 0) { goto exit; } #endif /* MBEDTLS_SSL_DTLS_CONNECTION_ID */ /* * 6. Write the GET request */ retry_left = opt.max_resend; send_request: mbedtls_printf(" > Write to server:"); fflush(stdout); len = mbedtls_snprintf((char *) buf, sizeof(buf) - 1, GET_REQUEST, opt.request_page); tail_len = (int) strlen(GET_REQUEST_END); /* Add padding to GET request to reach opt.request_size in length */ if (opt.request_size != DFL_REQUEST_SIZE && len + tail_len < opt.request_size) { memset(buf + len, 'A', opt.request_size - len - tail_len); len += opt.request_size - len - tail_len; } strncpy((char *) buf + len, GET_REQUEST_END, sizeof(buf) - len - 1); len += tail_len; /* Truncate if request size is smaller than the "natural" size */ if (opt.request_size != DFL_REQUEST_SIZE && len > opt.request_size) { len = opt.request_size; /* Still end with \r\n unless that's really not possible */ if (len >= 2) { buf[len - 2] = '\r'; } if (len >= 1) { buf[len - 1] = '\n'; } } if (opt.transport == MBEDTLS_SSL_TRANSPORT_STREAM) { written = 0; frags = 0; do { while ((ret = mbedtls_ssl_write(&ssl, buf + written, len - written)) < 0) { if (ret != MBEDTLS_ERR_SSL_WANT_READ && ret != MBEDTLS_ERR_SSL_WANT_WRITE && ret != MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS) { mbedtls_printf(" failed\n ! mbedtls_ssl_write returned -0x%x\n\n", (unsigned int) -ret); goto exit; } /* For event-driven IO, wait for socket to become available */ if (opt.event == 1 /* level triggered IO */) { #if defined(MBEDTLS_TIMING_C) idle(&server_fd, &timer, ret); #else idle(&server_fd, ret); #endif } } frags++; written += ret; } while (written < len); } else { /* Not stream, so datagram */ while (1) { ret = mbedtls_ssl_write(&ssl, buf, len); #if defined(MBEDTLS_ECP_RESTARTABLE) if (ret == MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS) { continue; } #endif if (ret != MBEDTLS_ERR_SSL_WANT_READ && ret != MBEDTLS_ERR_SSL_WANT_WRITE) { break; } /* For event-driven IO, wait for socket to become available */ if (opt.event == 1 /* level triggered IO */) { #if defined(MBEDTLS_TIMING_C) idle(&server_fd, &timer, ret); #else idle(&server_fd, ret); #endif } } if (ret < 0) { mbedtls_printf(" failed\n ! mbedtls_ssl_write returned %d\n\n", ret); goto exit; } frags = 1; written = ret; if (written < len) { mbedtls_printf(" warning\n ! request didn't fit into single datagram and " "was truncated to size %u", (unsigned) written); } } buf[written] = '\0'; mbedtls_printf(" %d bytes written in %d fragments\n\n%s\n", written, frags, (char *) buf); /* Send a non-empty request if request_size == 0 */ if (len == 0) { opt.request_size = DFL_REQUEST_SIZE; goto send_request; } /* * 7. Read the HTTP response */ mbedtls_printf(" < Read from server:"); fflush(stdout); /* * TLS and DTLS need different reading styles (stream vs datagram) */ if (opt.transport == MBEDTLS_SSL_TRANSPORT_STREAM) { do { len = sizeof(buf) - 1; memset(buf, 0, sizeof(buf)); ret = mbedtls_ssl_read(&ssl, buf, len); #if defined(MBEDTLS_ECP_RESTARTABLE) if (ret == MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS) { continue; } #endif if (ret == MBEDTLS_ERR_SSL_WANT_READ || ret == MBEDTLS_ERR_SSL_WANT_WRITE) { /* For event-driven IO, wait for socket to become available */ if (opt.event == 1 /* level triggered IO */) { #if defined(MBEDTLS_TIMING_C) idle(&server_fd, &timer, ret); #else idle(&server_fd, ret); #endif } continue; } if (ret <= 0) { switch (ret) { case MBEDTLS_ERR_SSL_PEER_CLOSE_NOTIFY: mbedtls_printf(" connection was closed gracefully\n"); ret = 0; goto close_notify; case 0: case MBEDTLS_ERR_NET_CONN_RESET: mbedtls_printf(" connection was reset by peer\n"); ret = 0; goto reconnect; default: mbedtls_printf(" mbedtls_ssl_read returned -0x%x\n", (unsigned int) -ret); goto exit; } } len = ret; buf[len] = '\0'; mbedtls_printf(" %d bytes read\n\n%s", len, (char *) buf); /* End of message should be detected according to the syntax of the * application protocol (eg HTTP), just use a dummy test here. */ if (ret > 0 && buf[len-1] == '\n') { ret = 0; break; } } while (1); } else { /* Not stream, so datagram */ len = sizeof(buf) - 1; memset(buf, 0, sizeof(buf)); while (1) { ret = mbedtls_ssl_read(&ssl, buf, len); #if defined(MBEDTLS_ECP_RESTARTABLE) if (ret == MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS) { continue; } #endif if (ret != MBEDTLS_ERR_SSL_WANT_READ && ret != MBEDTLS_ERR_SSL_WANT_WRITE) { break; } /* For event-driven IO, wait for socket to become available */ if (opt.event == 1 /* level triggered IO */) { #if defined(MBEDTLS_TIMING_C) idle(&server_fd, &timer, ret); #else idle(&server_fd, ret); #endif } } if (ret <= 0) { switch (ret) { case MBEDTLS_ERR_SSL_TIMEOUT: mbedtls_printf(" timeout\n"); if (retry_left-- > 0) { goto send_request; } goto exit; case MBEDTLS_ERR_SSL_PEER_CLOSE_NOTIFY: mbedtls_printf(" connection was closed gracefully\n"); ret = 0; goto close_notify; default: mbedtls_printf(" mbedtls_ssl_read returned -0x%x\n", (unsigned int) -ret); goto exit; } } len = ret; buf[len] = '\0'; mbedtls_printf(" %d bytes read\n\n%s", len, (char *) buf); ret = 0; } /* * 7b. Simulate hard reset and reconnect from same port? */ if (opt.reconnect_hard != 0) { opt.reconnect_hard = 0; mbedtls_printf(" . Restarting connection from same port..."); fflush(stdout); #if defined(MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED) memset(peer_crt_info, 0, sizeof(peer_crt_info)); #endif /* MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED */ if ((ret = mbedtls_ssl_session_reset(&ssl)) != 0) { mbedtls_printf(" failed\n ! mbedtls_ssl_session_reset returned -0x%x\n\n", (unsigned int) -ret); goto exit; } while ((ret = mbedtls_ssl_handshake(&ssl)) != 0) { if (ret != MBEDTLS_ERR_SSL_WANT_READ && ret != MBEDTLS_ERR_SSL_WANT_WRITE && ret != MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS) { mbedtls_printf(" failed\n ! mbedtls_ssl_handshake returned -0x%x\n\n", (unsigned int) -ret); goto exit; } /* For event-driven IO, wait for socket to become available */ if (opt.event == 1 /* level triggered IO */) { #if defined(MBEDTLS_TIMING_C) idle(&server_fd, &timer, ret); #else idle(&server_fd, ret); #endif } } mbedtls_printf(" ok\n"); goto send_request; } /* * 7c. Simulate serialize/deserialize and go back to data exchange */ #if defined(MBEDTLS_SSL_CONTEXT_SERIALIZATION) if (opt.serialize != 0) { size_t buf_len; mbedtls_printf(" . Serializing live connection..."); ret = mbedtls_ssl_context_save(&ssl, NULL, 0, &buf_len); if (ret != MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL) { mbedtls_printf(" failed\n ! mbedtls_ssl_context_save returned " "-0x%x\n\n", (unsigned int) -ret); goto exit; } if ((context_buf = mbedtls_calloc(1, buf_len)) == NULL) { mbedtls_printf(" failed\n ! Couldn't allocate buffer for " "serialized context"); goto exit; } context_buf_len = buf_len; if ((ret = mbedtls_ssl_context_save(&ssl, context_buf, buf_len, &buf_len)) != 0) { mbedtls_printf(" failed\n ! mbedtls_ssl_context_save returned " "-0x%x\n\n", (unsigned int) -ret); goto exit; } mbedtls_printf(" ok\n"); /* Save serialized context to the 'opt.context_file' as a base64 code */ if (0 < strlen(opt.context_file)) { FILE *b64_file; uint8_t *b64_buf; size_t b64_len; mbedtls_printf(" . Save serialized context to a file... "); mbedtls_base64_encode(NULL, 0, &b64_len, context_buf, buf_len); if ((b64_buf = mbedtls_calloc(1, b64_len)) == NULL) { mbedtls_printf("failed\n ! Couldn't allocate buffer for " "the base64 code\n"); goto exit; } if ((ret = mbedtls_base64_encode(b64_buf, b64_len, &b64_len, context_buf, buf_len)) != 0) { mbedtls_printf("failed\n ! mbedtls_base64_encode returned " "-0x%x\n", (unsigned int) -ret); mbedtls_free(b64_buf); goto exit; } if ((b64_file = fopen(opt.context_file, "w")) == NULL) { mbedtls_printf("failed\n ! Cannot open '%s' for writing.\n", opt.context_file); mbedtls_free(b64_buf); goto exit; } if (b64_len != fwrite(b64_buf, 1, b64_len, b64_file)) { mbedtls_printf("failed\n ! fwrite(%ld bytes) failed\n", (long) b64_len); mbedtls_free(b64_buf); fclose(b64_file); goto exit; } mbedtls_free(b64_buf); fclose(b64_file); mbedtls_printf("ok\n"); } if (opt.serialize == 1) { /* nothing to do here, done by context_save() already */ mbedtls_printf(" . Context has been reset... ok\n"); } if (opt.serialize == 2) { mbedtls_printf(" . Freeing and reinitializing context..."); mbedtls_ssl_free(&ssl); mbedtls_ssl_init(&ssl); if ((ret = mbedtls_ssl_setup(&ssl, &conf)) != 0) { mbedtls_printf(" failed\n ! mbedtls_ssl_setup returned " "-0x%x\n\n", (unsigned int) -ret); goto exit; } if (opt.nbio == 2) { mbedtls_ssl_set_bio(&ssl, &server_fd, delayed_send, delayed_recv, NULL); } else { mbedtls_ssl_set_bio(&ssl, &server_fd, mbedtls_net_send, mbedtls_net_recv, opt.nbio == 0 ? mbedtls_net_recv_timeout : NULL); } #if defined(MBEDTLS_TIMING_C) mbedtls_ssl_set_timer_cb(&ssl, &timer, mbedtls_timing_set_delay, mbedtls_timing_get_delay); #endif /* MBEDTLS_TIMING_C */ mbedtls_printf(" ok\n"); } mbedtls_printf(" . Deserializing connection..."); if ((ret = mbedtls_ssl_context_load(&ssl, context_buf, buf_len)) != 0) { mbedtls_printf("failed\n ! mbedtls_ssl_context_load returned " "-0x%x\n\n", (unsigned int) -ret); goto exit; } mbedtls_free(context_buf); context_buf = NULL; context_buf_len = 0; mbedtls_printf(" ok\n"); } #endif /* MBEDTLS_SSL_CONTEXT_SERIALIZATION */ /* * 7d. Continue doing data exchanges? */ if (--opt.exchanges > 0) { goto send_request; } /* * 8. Done, cleanly close the connection */ close_notify: mbedtls_printf(" . Closing the connection..."); fflush(stdout); /* * Most of the time sending a close_notify before closing is the right * thing to do. However, when the server already knows how many messages * are expected and closes the connection by itself, this alert becomes * redundant. Sometimes with DTLS this redundancy becomes a problem by * leading to a race condition where the server might close the connection * before seeing the alert, and since UDP is connection-less when the * alert arrives it will be seen as a new connection, which will fail as * the alert is clearly not a valid ClientHello. This may cause spurious * failures in tests that use DTLS and resumption with ssl_server2 in * ssl-opt.sh, avoided by enabling skip_close_notify client-side. */ if (opt.skip_close_notify == 0) { /* No error checking, the connection might be closed already */ do { ret = mbedtls_ssl_close_notify(&ssl); } while (ret == MBEDTLS_ERR_SSL_WANT_WRITE); ret = 0; } mbedtls_printf(" done\n"); /* * 9. Reconnect? */ reconnect: if (opt.reconnect != 0) { --opt.reconnect; mbedtls_net_free(&server_fd); #if defined(MBEDTLS_TIMING_C) if (opt.reco_delay > 0) { mbedtls_net_usleep(1000000 * opt.reco_delay); } #endif mbedtls_printf(" . Reconnecting with saved session..."); #if defined(MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED) memset(peer_crt_info, 0, sizeof(peer_crt_info)); #endif /* MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED */ if ((ret = mbedtls_ssl_session_reset(&ssl)) != 0) { mbedtls_printf(" failed\n ! mbedtls_ssl_session_reset returned -0x%x\n\n", (unsigned int) -ret); goto exit; } if (opt.reco_mode == 1) { if ((ret = mbedtls_ssl_session_load(&saved_session, session_data, session_data_len)) != 0) { mbedtls_printf(" failed\n ! mbedtls_ssl_session_load returned -0x%x\n\n", (unsigned int) -ret); goto exit; } } if ((ret = mbedtls_ssl_set_session(&ssl, &saved_session)) != 0) { mbedtls_printf(" failed\n ! mbedtls_ssl_set_session returned -0x%x\n\n", (unsigned int) -ret); goto exit; } if ((ret = mbedtls_net_connect(&server_fd, opt.server_addr, opt.server_port, opt.transport == MBEDTLS_SSL_TRANSPORT_STREAM ? MBEDTLS_NET_PROTO_TCP : MBEDTLS_NET_PROTO_UDP)) != 0) { mbedtls_printf(" failed\n ! mbedtls_net_connect returned -0x%x\n\n", (unsigned int) -ret); goto exit; } if (opt.nbio > 0) { ret = mbedtls_net_set_nonblock(&server_fd); } else { ret = mbedtls_net_set_block(&server_fd); } if (ret != 0) { mbedtls_printf(" failed\n ! net_set_(non)block() returned -0x%x\n\n", (unsigned int) -ret); goto exit; } while ((ret = mbedtls_ssl_handshake(&ssl)) != 0) { if (ret != MBEDTLS_ERR_SSL_WANT_READ && ret != MBEDTLS_ERR_SSL_WANT_WRITE && ret != MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS) { mbedtls_printf(" failed\n ! mbedtls_ssl_handshake returned -0x%x\n\n", (unsigned int) -ret); goto exit; } } mbedtls_printf(" ok\n"); goto send_request; } /* * Cleanup and exit */ exit: #ifdef MBEDTLS_ERROR_C if (ret != 0) { char error_buf[100]; mbedtls_strerror(ret, error_buf, 100); mbedtls_printf("Last error was: -0x%X - %s\n\n", (unsigned int) -ret, error_buf); } #endif mbedtls_net_free(&server_fd); mbedtls_ssl_free(&ssl); mbedtls_ssl_config_free(&conf); mbedtls_ssl_session_free(&saved_session); if (session_data != NULL) { mbedtls_platform_zeroize(session_data, session_data_len); } mbedtls_free(session_data); #if defined(MBEDTLS_SSL_CONTEXT_SERIALIZATION) if (context_buf != NULL) { mbedtls_platform_zeroize(context_buf, context_buf_len); } mbedtls_free(context_buf); #endif #if defined(MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED) mbedtls_x509_crt_free(&clicert); mbedtls_x509_crt_free(&cacert); mbedtls_pk_free(&pkey); #if defined(MBEDTLS_USE_PSA_CRYPTO) psa_destroy_key(key_slot); #endif #endif /* MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED */ #if defined(MBEDTLS_KEY_EXCHANGE_SOME_PSK_ENABLED) && \ defined(MBEDTLS_USE_PSA_CRYPTO) if (opt.psk_opaque != 0) { /* This is ok even if the slot hasn't been * initialized (we might have jumed here * immediately because of bad cmd line params, * for example). */ status = psa_destroy_key(slot); if ((status != PSA_SUCCESS) && (opt.query_config_mode == DFL_QUERY_CONFIG_MODE)) { mbedtls_printf("Failed to destroy key slot %u - error was %d", (unsigned) slot, (int) status); if (ret == 0) { ret = MBEDTLS_ERR_SSL_HW_ACCEL_FAILED; } } } #endif /* MBEDTLS_KEY_EXCHANGE_SOME_PSK_ENABLED && MBEDTLS_USE_PSA_CRYPTO */ #if defined(MBEDTLS_USE_PSA_CRYPTO) const char *message = mbedtls_test_helper_is_psa_leaking(); if (message) { if (ret == 0) { ret = 1; } mbedtls_printf("PSA memory leak detected: %s\n", message); } #endif /* MBEDTLS_USE_PSA_CRYPTO */ /* For builds with MBEDTLS_TEST_USE_PSA_CRYPTO_RNG psa crypto * resources are freed by rng_free(). */ #if defined(MBEDTLS_USE_PSA_CRYPTO) && \ !defined(MBEDTLS_TEST_USE_PSA_CRYPTO_RNG) mbedtls_psa_crypto_free(); #endif rng_free(&rng); #if defined(MBEDTLS_TEST_HOOKS) if (test_hooks_failure_detected()) { if (ret == 0) { ret = 1; } mbedtls_printf("Test hooks detected errors.\n"); } test_hooks_free(); #endif /* MBEDTLS_TEST_HOOKS */ #if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C) #if defined(MBEDTLS_MEMORY_DEBUG) mbedtls_memory_buffer_alloc_status(); #endif mbedtls_memory_buffer_alloc_free(); #endif /* MBEDTLS_MEMORY_BUFFER_ALLOC_C */ #if defined(_WIN32) if (opt.query_config_mode == DFL_QUERY_CONFIG_MODE) { mbedtls_printf(" + Press Enter to exit this program.\n"); fflush(stdout); getchar(); } #endif // Shell can not handle large exit numbers -> 1 for errors if (ret < 0) { ret = 1; } if (opt.query_config_mode == DFL_QUERY_CONFIG_MODE) { mbedtls_exit(ret); } else { mbedtls_exit(query_config_ret); } } #endif /* !MBEDTLS_SSL_TEST_IMPOSSIBLE && MBEDTLS_SSL_CLI_C */