/* * Copyright 1995-2022 The OpenSSL Project Authors. All Rights Reserved. * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved * Copyright 2005 Nokia. All rights reserved. * * Licensed under the OpenSSL license (the "License"). You may not use * this file except in compliance with the License. You can obtain a copy * in the file LICENSE in the source distribution or at * https://www.openssl.org/source/license.html */ #include "e_os.h" /* Or gethostname won't be declared properly on Linux and GNU platforms. */ #ifndef _BSD_SOURCE # define _BSD_SOURCE 1 #endif #ifndef _DEFAULT_SOURCE # define _DEFAULT_SOURCE 1 #endif #include #include #include #include #include #include #include #include "internal/nelem.h" #ifdef OPENSSL_SYS_VMS /* * Or isascii won't be declared properly on VMS (at least with DECompHP C). */ # define _XOPEN_SOURCE 500 #endif #include #include #include #include #include #include #include #include #include #ifndef OPENSSL_NO_RSA # include #endif #ifndef OPENSSL_NO_DSA # include #endif #ifndef OPENSSL_NO_DH # include #endif #include #ifndef OPENSSL_NO_CT # include #endif /* * Or gethostname won't be declared properly * on Compaq platforms (at least with DEC C). * Do not try to put it earlier, or IPv6 includes * get screwed... */ #define _XOPEN_SOURCE_EXTENDED 1 #ifdef OPENSSL_SYS_WINDOWS # include #else # include OPENSSL_UNISTD #endif static SSL_CTX *s_ctx = NULL; static SSL_CTX *s_ctx2 = NULL; /* * There is really no standard for this, so let's assign something * only for this test */ #define COMP_ZLIB 1 static int verify_callback(int ok, X509_STORE_CTX *ctx); static int app_verify_callback(X509_STORE_CTX *ctx, void *arg); #define APP_CALLBACK_STRING "Test Callback Argument" struct app_verify_arg { char *string; int app_verify; }; #ifndef OPENSSL_NO_DH static DH *get_dh512(void); static DH *get_dh1024(void); static DH *get_dh1024dsa(void); static DH *get_dh2048(void); static DH *get_dh4096(void); #endif static char *psk_key = NULL; /* by default PSK is not used */ #ifndef OPENSSL_NO_PSK static unsigned int psk_client_callback(SSL *ssl, const char *hint, char *identity, unsigned int max_identity_len, unsigned char *psk, unsigned int max_psk_len); static unsigned int psk_server_callback(SSL *ssl, const char *identity, unsigned char *psk, unsigned int max_psk_len); #endif static BIO *bio_err = NULL; static BIO *bio_stdout = NULL; #ifndef OPENSSL_NO_NEXTPROTONEG /* Note that this code assumes that this is only a one element list: */ static const char NEXT_PROTO_STRING[] = "\x09testproto"; static int npn_client = 0; static int npn_server = 0; static int npn_server_reject = 0; static int cb_client_npn(SSL *s, unsigned char **out, unsigned char *outlen, const unsigned char *in, unsigned int inlen, void *arg) { /* * This callback only returns the protocol string, rather than a length * prefixed set. We assume that NEXT_PROTO_STRING is a one element list * and remove the first byte to chop off the length prefix. */ *out = (unsigned char *)NEXT_PROTO_STRING + 1; *outlen = sizeof(NEXT_PROTO_STRING) - 2; return SSL_TLSEXT_ERR_OK; } static int cb_server_npn(SSL *s, const unsigned char **data, unsigned int *len, void *arg) { *data = (const unsigned char *)NEXT_PROTO_STRING; *len = sizeof(NEXT_PROTO_STRING) - 1; return SSL_TLSEXT_ERR_OK; } static int cb_server_rejects_npn(SSL *s, const unsigned char **data, unsigned int *len, void *arg) { return SSL_TLSEXT_ERR_NOACK; } static int verify_npn(SSL *client, SSL *server) { const unsigned char *client_s; unsigned client_len; const unsigned char *server_s; unsigned server_len; SSL_get0_next_proto_negotiated(client, &client_s, &client_len); SSL_get0_next_proto_negotiated(server, &server_s, &server_len); if (client_len) { BIO_printf(bio_stdout, "Client NPN: "); BIO_write(bio_stdout, client_s, client_len); BIO_printf(bio_stdout, "\n"); } if (server_len) { BIO_printf(bio_stdout, "Server NPN: "); BIO_write(bio_stdout, server_s, server_len); BIO_printf(bio_stdout, "\n"); } /* * If an NPN string was returned, it must be the protocol that we * expected to negotiate. */ if (client_len && (client_len != sizeof(NEXT_PROTO_STRING) - 2 || memcmp(client_s, NEXT_PROTO_STRING + 1, client_len))) return -1; if (server_len && (server_len != sizeof(NEXT_PROTO_STRING) - 2 || memcmp(server_s, NEXT_PROTO_STRING + 1, server_len))) return -1; if (!npn_client && client_len) return -1; if (!npn_server && server_len) return -1; if (npn_server_reject && server_len) return -1; if (npn_client && npn_server && (!client_len || !server_len)) return -1; return 0; } #endif static const char *alpn_client; static char *alpn_server; static char *alpn_server2; static const char *alpn_expected; static unsigned char *alpn_selected; static const char *server_min_proto; static const char *server_max_proto; static const char *client_min_proto; static const char *client_max_proto; static const char *should_negotiate; static const char *sn_client; static const char *sn_server1; static const char *sn_server2; static int sn_expect = 0; static const char *server_sess_out; static const char *server_sess_in; static const char *client_sess_out; static const char *client_sess_in; static SSL_SESSION *server_sess; static SSL_SESSION *client_sess; static int servername_cb(SSL *s, int *ad, void *arg) { const char *servername = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name); if (sn_server2 == NULL) { BIO_printf(bio_stdout, "Servername 2 is NULL\n"); return SSL_TLSEXT_ERR_NOACK; } if (servername) { if (s_ctx2 != NULL && sn_server2 != NULL && !strcasecmp(servername, sn_server2)) { BIO_printf(bio_stdout, "Switching server context.\n"); SSL_set_SSL_CTX(s, s_ctx2); } } return SSL_TLSEXT_ERR_OK; } static int verify_servername(SSL *client, SSL *server) { /* just need to see if sn_context is what we expect */ SSL_CTX* ctx = SSL_get_SSL_CTX(server); if (sn_expect == 0) return 0; if (sn_expect == 1 && ctx == s_ctx) return 0; if (sn_expect == 2 && ctx == s_ctx2) return 0; BIO_printf(bio_stdout, "Servername: expected context %d\n", sn_expect); if (ctx == s_ctx2) BIO_printf(bio_stdout, "Servername: context is 2\n"); else if (ctx == s_ctx) BIO_printf(bio_stdout, "Servername: context is 1\n"); else BIO_printf(bio_stdout, "Servername: context is unknown\n"); return -1; } /*- * next_protos_parse parses a comma separated list of strings into a string * in a format suitable for passing to SSL_CTX_set_next_protos_advertised. * outlen: (output) set to the length of the resulting buffer on success. * in: a NUL terminated string like "abc,def,ghi" * * returns: a malloced buffer or NULL on failure. */ static unsigned char *next_protos_parse(size_t *outlen, const char *in) { size_t len; unsigned char *out; size_t i, start = 0; len = strlen(in); if (len >= 65535) return NULL; out = OPENSSL_malloc(strlen(in) + 1); if (!out) return NULL; for (i = 0; i <= len; ++i) { if (i == len || in[i] == ',') { if (i - start > 255) { OPENSSL_free(out); return NULL; } out[start] = (unsigned char)(i - start); start = i + 1; } else out[i + 1] = in[i]; } *outlen = len + 1; return out; } static int cb_server_alpn(SSL *s, const unsigned char **out, unsigned char *outlen, const unsigned char *in, unsigned int inlen, void *arg) { unsigned char *protos; size_t protos_len; char* alpn_str = arg; protos = next_protos_parse(&protos_len, alpn_str); if (protos == NULL) { fprintf(stderr, "failed to parser ALPN server protocol string: %s\n", alpn_str); abort(); } if (SSL_select_next_proto ((unsigned char **)out, outlen, protos, protos_len, in, inlen) != OPENSSL_NPN_NEGOTIATED) { OPENSSL_free(protos); return SSL_TLSEXT_ERR_NOACK; } /* * Make a copy of the selected protocol which will be freed in * verify_alpn. */ alpn_selected = OPENSSL_malloc(*outlen); memcpy(alpn_selected, *out, *outlen); *out = alpn_selected; OPENSSL_free(protos); return SSL_TLSEXT_ERR_OK; } static int verify_alpn(SSL *client, SSL *server) { const unsigned char *client_proto, *server_proto; unsigned int client_proto_len = 0, server_proto_len = 0; SSL_get0_alpn_selected(client, &client_proto, &client_proto_len); SSL_get0_alpn_selected(server, &server_proto, &server_proto_len); OPENSSL_free(alpn_selected); alpn_selected = NULL; if (client_proto_len != server_proto_len) { BIO_printf(bio_stdout, "ALPN selected protocols differ!\n"); goto err; } if (client_proto != NULL && memcmp(client_proto, server_proto, client_proto_len) != 0) { BIO_printf(bio_stdout, "ALPN selected protocols differ!\n"); goto err; } if (client_proto_len > 0 && alpn_expected == NULL) { BIO_printf(bio_stdout, "ALPN unexpectedly negotiated\n"); goto err; } if (alpn_expected != NULL && (client_proto_len != strlen(alpn_expected) || memcmp(client_proto, alpn_expected, client_proto_len) != 0)) { BIO_printf(bio_stdout, "ALPN selected protocols not equal to expected protocol: %s\n", alpn_expected); goto err; } return 0; err: BIO_printf(bio_stdout, "ALPN results: client: '"); BIO_write(bio_stdout, client_proto, client_proto_len); BIO_printf(bio_stdout, "', server: '"); BIO_write(bio_stdout, server_proto, server_proto_len); BIO_printf(bio_stdout, "'\n"); BIO_printf(bio_stdout, "ALPN configured: client: '%s', server: '", alpn_client); if (SSL_get_SSL_CTX(server) == s_ctx2) { BIO_printf(bio_stdout, "%s'\n", alpn_server2); } else { BIO_printf(bio_stdout, "%s'\n", alpn_server); } return -1; } /* * WARNING : below extension types are *NOT* IETF assigned, and could * conflict if these types are reassigned and handled specially by OpenSSL * in the future */ #define TACK_EXT_TYPE 62208 #define CUSTOM_EXT_TYPE_0 1000 #define CUSTOM_EXT_TYPE_1 1001 #define CUSTOM_EXT_TYPE_2 1002 #define CUSTOM_EXT_TYPE_3 1003 static const char custom_ext_cli_string[] = "abc"; static const char custom_ext_srv_string[] = "defg"; /* These set from cmdline */ static char *serverinfo_file = NULL; static int serverinfo_sct = 0; static int serverinfo_tack = 0; /* These set based on extension callbacks */ static int serverinfo_sct_seen = 0; static int serverinfo_tack_seen = 0; static int serverinfo_other_seen = 0; /* This set from cmdline */ static int custom_ext = 0; /* This set based on extension callbacks */ static int custom_ext_error = 0; static int serverinfo_cli_parse_cb(SSL *s, unsigned int ext_type, const unsigned char *in, size_t inlen, int *al, void *arg) { if (ext_type == TLSEXT_TYPE_signed_certificate_timestamp) serverinfo_sct_seen++; else if (ext_type == TACK_EXT_TYPE) serverinfo_tack_seen++; else serverinfo_other_seen++; return 1; } static int verify_serverinfo(void) { if (serverinfo_sct != serverinfo_sct_seen) return -1; if (serverinfo_tack != serverinfo_tack_seen) return -1; if (serverinfo_other_seen) return -1; return 0; } /*- * Four test cases for custom extensions: * 0 - no ClientHello extension or ServerHello response * 1 - ClientHello with "abc", no response * 2 - ClientHello with "abc", empty response * 3 - ClientHello with "abc", "defg" response */ static int custom_ext_0_cli_add_cb(SSL *s, unsigned int ext_type, const unsigned char **out, size_t *outlen, int *al, void *arg) { if (ext_type != CUSTOM_EXT_TYPE_0) custom_ext_error = 1; return 0; /* Don't send an extension */ } static int custom_ext_0_cli_parse_cb(SSL *s, unsigned int ext_type, const unsigned char *in, size_t inlen, int *al, void *arg) { return 1; } static int custom_ext_1_cli_add_cb(SSL *s, unsigned int ext_type, const unsigned char **out, size_t *outlen, int *al, void *arg) { if (ext_type != CUSTOM_EXT_TYPE_1) custom_ext_error = 1; *out = (const unsigned char *)custom_ext_cli_string; *outlen = strlen(custom_ext_cli_string); return 1; /* Send "abc" */ } static int custom_ext_1_cli_parse_cb(SSL *s, unsigned int ext_type, const unsigned char *in, size_t inlen, int *al, void *arg) { return 1; } static int custom_ext_2_cli_add_cb(SSL *s, unsigned int ext_type, const unsigned char **out, size_t *outlen, int *al, void *arg) { if (ext_type != CUSTOM_EXT_TYPE_2) custom_ext_error = 1; *out = (const unsigned char *)custom_ext_cli_string; *outlen = strlen(custom_ext_cli_string); return 1; /* Send "abc" */ } static int custom_ext_2_cli_parse_cb(SSL *s, unsigned int ext_type, const unsigned char *in, size_t inlen, int *al, void *arg) { if (ext_type != CUSTOM_EXT_TYPE_2) custom_ext_error = 1; if (inlen != 0) custom_ext_error = 1; /* Should be empty response */ return 1; } static int custom_ext_3_cli_add_cb(SSL *s, unsigned int ext_type, const unsigned char **out, size_t *outlen, int *al, void *arg) { if (ext_type != CUSTOM_EXT_TYPE_3) custom_ext_error = 1; *out = (const unsigned char *)custom_ext_cli_string; *outlen = strlen(custom_ext_cli_string); return 1; /* Send "abc" */ } static int custom_ext_3_cli_parse_cb(SSL *s, unsigned int ext_type, const unsigned char *in, size_t inlen, int *al, void *arg) { if (ext_type != CUSTOM_EXT_TYPE_3) custom_ext_error = 1; if (inlen != strlen(custom_ext_srv_string)) custom_ext_error = 1; if (memcmp(custom_ext_srv_string, in, inlen) != 0) custom_ext_error = 1; /* Check for "defg" */ return 1; } /* * custom_ext_0_cli_add_cb returns 0 - the server won't receive a callback * for this extension */ static int custom_ext_0_srv_parse_cb(SSL *s, unsigned int ext_type, const unsigned char *in, size_t inlen, int *al, void *arg) { custom_ext_error = 1; return 1; } /* 'add' callbacks are only called if the 'parse' callback is called */ static int custom_ext_0_srv_add_cb(SSL *s, unsigned int ext_type, const unsigned char **out, size_t *outlen, int *al, void *arg) { /* Error: should not have been called */ custom_ext_error = 1; return 0; /* Don't send an extension */ } static int custom_ext_1_srv_parse_cb(SSL *s, unsigned int ext_type, const unsigned char *in, size_t inlen, int *al, void *arg) { if (ext_type != CUSTOM_EXT_TYPE_1) custom_ext_error = 1; /* Check for "abc" */ if (inlen != strlen(custom_ext_cli_string)) custom_ext_error = 1; if (memcmp(in, custom_ext_cli_string, inlen) != 0) custom_ext_error = 1; return 1; } static int custom_ext_1_srv_add_cb(SSL *s, unsigned int ext_type, const unsigned char **out, size_t *outlen, int *al, void *arg) { return 0; /* Don't send an extension */ } static int custom_ext_2_srv_parse_cb(SSL *s, unsigned int ext_type, const unsigned char *in, size_t inlen, int *al, void *arg) { if (ext_type != CUSTOM_EXT_TYPE_2) custom_ext_error = 1; /* Check for "abc" */ if (inlen != strlen(custom_ext_cli_string)) custom_ext_error = 1; if (memcmp(in, custom_ext_cli_string, inlen) != 0) custom_ext_error = 1; return 1; } static int custom_ext_2_srv_add_cb(SSL *s, unsigned int ext_type, const unsigned char **out, size_t *outlen, int *al, void *arg) { *out = NULL; *outlen = 0; return 1; /* Send empty extension */ } static int custom_ext_3_srv_parse_cb(SSL *s, unsigned int ext_type, const unsigned char *in, size_t inlen, int *al, void *arg) { if (ext_type != CUSTOM_EXT_TYPE_3) custom_ext_error = 1; /* Check for "abc" */ if (inlen != strlen(custom_ext_cli_string)) custom_ext_error = 1; if (memcmp(in, custom_ext_cli_string, inlen) != 0) custom_ext_error = 1; return 1; } static int custom_ext_3_srv_add_cb(SSL *s, unsigned int ext_type, const unsigned char **out, size_t *outlen, int *al, void *arg) { *out = (const unsigned char *)custom_ext_srv_string; *outlen = strlen(custom_ext_srv_string); return 1; /* Send "defg" */ } static char *cipher = NULL; static char *ciphersuites = NULL; static int verbose = 0; static int debug = 0; int doit_localhost(SSL *s_ssl, SSL *c_ssl, int family, long bytes, clock_t *s_time, clock_t *c_time); int doit_biopair(SSL *s_ssl, SSL *c_ssl, long bytes, clock_t *s_time, clock_t *c_time); int doit(SSL *s_ssl, SSL *c_ssl, long bytes); static void sv_usage(void) { fprintf(stderr, "usage: ssltest [args ...]\n"); fprintf(stderr, "\n"); fprintf(stderr, " -server_auth - check server certificate\n"); fprintf(stderr, " -client_auth - do client authentication\n"); fprintf(stderr, " -v - more output\n"); fprintf(stderr, " -d - debug output\n"); fprintf(stderr, " -reuse - use session-id reuse\n"); fprintf(stderr, " -num - number of connections to perform\n"); fprintf(stderr, " -bytes - number of bytes to swap between client/server\n"); #ifndef OPENSSL_NO_DH fprintf(stderr, " -dhe512 - use 512 bit key for DHE (to test failure)\n"); fprintf(stderr, " -dhe1024 - use 1024 bit key (safe prime) for DHE (default, no-op)\n"); fprintf(stderr, " -dhe1024dsa - use 1024 bit key (with 160-bit subprime) for DHE\n"); fprintf(stderr, " -dhe2048 - use 2048 bit key (rfc3526 prime) for DHE\n"); fprintf(stderr, " -dhe4096 - use 4096 bit key (rfc3526 prime) for DHE\n"); fprintf(stderr, " -no_dhe - disable DHE\n"); #endif #ifndef OPENSSL_NO_EC fprintf(stderr, " -no_ecdhe - disable ECDHE\nTODO(openssl-team): no_ecdhe was broken by auto ecdh. Make this work again.\n"); #endif #ifndef OPENSSL_NO_PSK fprintf(stderr, " -psk arg - PSK in hex (without 0x)\n"); #endif #ifndef OPENSSL_NO_SSL3 fprintf(stderr, " -ssl3 - use SSLv3\n"); #endif #ifndef OPENSSL_NO_TLS1 fprintf(stderr, " -tls1 - use TLSv1\n"); #endif #ifndef OPENSSL_NO_TLS1_1 fprintf(stderr, " -tls1_1 - use TLSv1.1\n"); #endif #ifndef OPENSSL_NO_TLS1_2 fprintf(stderr, " -tls1_2 - use TLSv1.2\n"); #endif #ifndef OPENSSL_NO_DTLS fprintf(stderr, " -dtls - use DTLS\n"); #ifndef OPENSSL_NO_DTLS1 fprintf(stderr, " -dtls1 - use DTLSv1\n"); #endif #ifndef OPENSSL_NO_DTLS1_2 fprintf(stderr, " -dtls12 - use DTLSv1.2\n"); #endif #endif fprintf(stderr, " -CApath arg - PEM format directory of CA's\n"); fprintf(stderr, " -CAfile arg - PEM format file of CA's\n"); fprintf(stderr, " -cert arg - Server certificate file\n"); fprintf(stderr, " -key arg - Server key file (default: same as -cert)\n"); fprintf(stderr, " -c_cert arg - Client certificate file\n"); fprintf(stderr, " -c_key arg - Client key file (default: same as -c_cert)\n"); fprintf(stderr, " -cipher arg - The TLSv1.2 and below cipher list\n"); fprintf(stderr, " -ciphersuites arg - The TLSv1.3 ciphersuites\n"); fprintf(stderr, " -bio_pair - Use BIO pairs\n"); fprintf(stderr, " -ipv4 - Use IPv4 connection on localhost\n"); fprintf(stderr, " -ipv6 - Use IPv6 connection on localhost\n"); fprintf(stderr, " -f - Test even cases that can't work\n"); fprintf(stderr, " -time - measure processor time used by client and server\n"); fprintf(stderr, " -zlib - use zlib compression\n"); #ifndef OPENSSL_NO_NEXTPROTONEG fprintf(stderr, " -npn_client - have client side offer NPN\n"); fprintf(stderr, " -npn_server - have server side offer NPN\n"); fprintf(stderr, " -npn_server_reject - have server reject NPN\n"); #endif fprintf(stderr, " -serverinfo_file file - have server use this file\n"); fprintf(stderr, " -serverinfo_sct - have client offer and expect SCT\n"); fprintf(stderr, " -serverinfo_tack - have client offer and expect TACK\n"); fprintf(stderr, " -custom_ext - try various custom extension callbacks\n"); fprintf(stderr, " -alpn_client - have client side offer ALPN\n"); fprintf(stderr, " -alpn_server - have server side offer ALPN\n"); fprintf(stderr, " -alpn_server1 - alias for -alpn_server\n"); fprintf(stderr, " -alpn_server2 - have server side context 2 offer ALPN\n"); fprintf(stderr, " -alpn_expected - the ALPN protocol that should be negotiated\n"); fprintf(stderr, " -server_min_proto - Minimum version the server should support\n"); fprintf(stderr, " -server_max_proto - Maximum version the server should support\n"); fprintf(stderr, " -client_min_proto - Minimum version the client should support\n"); fprintf(stderr, " -client_max_proto - Maximum version the client should support\n"); fprintf(stderr, " -should_negotiate - The version that should be negotiated, fail-client or fail-server\n"); #ifndef OPENSSL_NO_CT fprintf(stderr, " -noct - no certificate transparency\n"); fprintf(stderr, " -requestct - request certificate transparency\n"); fprintf(stderr, " -requirect - require certificate transparency\n"); #endif fprintf(stderr, " -sn_client - have client request this servername\n"); fprintf(stderr, " -sn_server1 - have server context 1 respond to this servername\n"); fprintf(stderr, " -sn_server2 - have server context 2 respond to this servername\n"); fprintf(stderr, " -sn_expect1 - expected server 1\n"); fprintf(stderr, " -sn_expect2 - expected server 2\n"); fprintf(stderr, " -server_sess_out - Save the server session to a file\n"); fprintf(stderr, " -server_sess_in - Read the server session from a file\n"); fprintf(stderr, " -client_sess_out - Save the client session to a file\n"); fprintf(stderr, " -client_sess_in - Read the client session from a file\n"); fprintf(stderr, " -should_reuse - The expected state of reusing the session\n"); fprintf(stderr, " -no_ticket - do not issue TLS session ticket\n"); } static void print_key_details(BIO *out, EVP_PKEY *key) { int keyid = EVP_PKEY_id(key); #ifndef OPENSSL_NO_EC if (keyid == EVP_PKEY_EC) { EC_KEY *ec = EVP_PKEY_get1_EC_KEY(key); int nid; const char *cname; nid = EC_GROUP_get_curve_name(EC_KEY_get0_group(ec)); EC_KEY_free(ec); cname = EC_curve_nid2nist(nid); if (!cname) cname = OBJ_nid2sn(nid); BIO_printf(out, "%d bits EC (%s)", EVP_PKEY_bits(key), cname); } else #endif { const char *algname; switch (keyid) { case EVP_PKEY_RSA: algname = "RSA"; break; case EVP_PKEY_DSA: algname = "DSA"; break; case EVP_PKEY_DH: algname = "DH"; break; default: algname = OBJ_nid2sn(keyid); break; } BIO_printf(out, "%d bits %s", EVP_PKEY_bits(key), algname); } } static void print_details(SSL *c_ssl, const char *prefix) { const SSL_CIPHER *ciph; int mdnid; X509 *cert; EVP_PKEY *pkey; ciph = SSL_get_current_cipher(c_ssl); BIO_printf(bio_stdout, "%s%s, cipher %s %s", prefix, SSL_get_version(c_ssl), SSL_CIPHER_get_version(ciph), SSL_CIPHER_get_name(ciph)); cert = SSL_get_peer_certificate(c_ssl); if (cert != NULL) { EVP_PKEY* pubkey = X509_get0_pubkey(cert); if (pubkey != NULL) { BIO_puts(bio_stdout, ", "); print_key_details(bio_stdout, pubkey); } X509_free(cert); } if (SSL_get_peer_tmp_key(c_ssl, &pkey)) { BIO_puts(bio_stdout, ", temp key: "); print_key_details(bio_stdout, pkey); EVP_PKEY_free(pkey); } if (SSL_get_peer_signature_nid(c_ssl, &mdnid)) BIO_printf(bio_stdout, ", digest=%s", OBJ_nid2sn(mdnid)); BIO_printf(bio_stdout, "\n"); } /* * protocol_from_string - converts a protocol version string to a number * * Returns -1 on failure or the version on success */ static int protocol_from_string(const char *value) { struct protocol_versions { const char *name; int version; }; static const struct protocol_versions versions[] = { {"ssl3", SSL3_VERSION}, {"tls1", TLS1_VERSION}, {"tls1.1", TLS1_1_VERSION}, {"tls1.2", TLS1_2_VERSION}, {"tls1.3", TLS1_3_VERSION}, {"dtls1", DTLS1_VERSION}, {"dtls1.2", DTLS1_2_VERSION}}; size_t i; size_t n = OSSL_NELEM(versions); for (i = 0; i < n; i++) if (strcmp(versions[i].name, value) == 0) return versions[i].version; return -1; } static SSL_SESSION *read_session(const char *filename) { SSL_SESSION *sess; BIO *f = BIO_new_file(filename, "r"); if (f == NULL) { BIO_printf(bio_err, "Can't open session file %s\n", filename); ERR_print_errors(bio_err); return NULL; } sess = PEM_read_bio_SSL_SESSION(f, NULL, 0, NULL); if (sess == NULL) { BIO_printf(bio_err, "Can't parse session file %s\n", filename); ERR_print_errors(bio_err); } BIO_free(f); return sess; } static int write_session(const char *filename, SSL_SESSION *sess) { BIO *f; if (sess == NULL) { BIO_printf(bio_err, "No session information\n"); return 0; } f = BIO_new_file(filename, "w"); if (f == NULL) { BIO_printf(bio_err, "Can't open session file %s\n", filename); ERR_print_errors(bio_err); return 0; } PEM_write_bio_SSL_SESSION(f, sess); BIO_free(f); return 1; } /* * set_protocol_version - Sets protocol version minimum or maximum * * Returns 0 on failure and 1 on success */ static int set_protocol_version(const char *version, SSL *ssl, int setting) { if (version != NULL) { int ver = protocol_from_string(version); if (ver < 0) { BIO_printf(bio_err, "Error parsing: %s\n", version); return 0; } return SSL_ctrl(ssl, setting, ver, NULL); } return 1; } int main(int argc, char *argv[]) { const char *CApath = NULL, *CAfile = NULL; int badop = 0; enum { BIO_MEM, BIO_PAIR, BIO_IPV4, BIO_IPV6 } bio_type = BIO_MEM; int force = 0; int dtls1 = 0, dtls12 = 0, dtls = 0, tls1 = 0, tls1_1 = 0, tls1_2 = 0, ssl3 = 0; int ret = EXIT_FAILURE; int client_auth = 0; int server_auth = 0, i; struct app_verify_arg app_verify_arg = { APP_CALLBACK_STRING, 0 }; char *p; SSL_CTX *c_ctx = NULL; const SSL_METHOD *meth = NULL; SSL *c_ssl, *s_ssl; int number = 1, reuse = 0; int should_reuse = -1; int no_ticket = 0; long bytes = 256L; #ifndef OPENSSL_NO_DH DH *dh; int dhe512 = 0, dhe1024dsa = 0; int dhe2048 = 0, dhe4096 = 0; #endif int no_dhe = 0; int no_psk = 0; int print_time = 0; clock_t s_time = 0, c_time = 0; #ifndef OPENSSL_NO_COMP int n, comp = 0; COMP_METHOD *cm = NULL; STACK_OF(SSL_COMP) *ssl_comp_methods = NULL; #endif int no_protocol; int min_version = 0, max_version = 0; #ifndef OPENSSL_NO_CT /* * Disable CT validation by default, because it will interfere with * anything using custom extension handlers to deal with SCT extensions. */ int ct_validation = 0; #endif SSL_CONF_CTX *s_cctx = NULL, *c_cctx = NULL, *s_cctx2 = NULL; STACK_OF(OPENSSL_STRING) *conf_args = NULL; char *arg = NULL, *argn = NULL; verbose = 0; debug = 0; bio_err = BIO_new_fp(stderr, BIO_NOCLOSE | BIO_FP_TEXT); p = getenv("OPENSSL_DEBUG_MEMORY"); if (p != NULL && strcmp(p, "on") == 0) CRYPTO_set_mem_debug(1); CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON); bio_stdout = BIO_new_fp(stdout, BIO_NOCLOSE | BIO_FP_TEXT); s_cctx = SSL_CONF_CTX_new(); s_cctx2 = SSL_CONF_CTX_new(); c_cctx = SSL_CONF_CTX_new(); if (!s_cctx || !c_cctx || !s_cctx2) { ERR_print_errors(bio_err); goto end; } SSL_CONF_CTX_set_flags(s_cctx, SSL_CONF_FLAG_CMDLINE | SSL_CONF_FLAG_SERVER | SSL_CONF_FLAG_CERTIFICATE | SSL_CONF_FLAG_REQUIRE_PRIVATE); SSL_CONF_CTX_set_flags(s_cctx2, SSL_CONF_FLAG_CMDLINE | SSL_CONF_FLAG_SERVER | SSL_CONF_FLAG_CERTIFICATE | SSL_CONF_FLAG_REQUIRE_PRIVATE); if (!SSL_CONF_CTX_set1_prefix(s_cctx, "-s_")) { ERR_print_errors(bio_err); goto end; } if (!SSL_CONF_CTX_set1_prefix(s_cctx2, "-s_")) { ERR_print_errors(bio_err); goto end; } SSL_CONF_CTX_set_flags(c_cctx, SSL_CONF_FLAG_CMDLINE | SSL_CONF_FLAG_CLIENT | SSL_CONF_FLAG_CERTIFICATE | SSL_CONF_FLAG_REQUIRE_PRIVATE); if (!SSL_CONF_CTX_set1_prefix(c_cctx, "-c_")) { ERR_print_errors(bio_err); goto end; } argc--; argv++; while (argc >= 1) { if (strcmp(*argv, "-F") == 0) { fprintf(stderr, "not compiled with FIPS support, so exiting without running.\n"); EXIT(0); } else if (strcmp(*argv, "-server_auth") == 0) server_auth = 1; else if (strcmp(*argv, "-client_auth") == 0) client_auth = 1; else if (strcmp(*argv, "-v") == 0) verbose = 1; else if (strcmp(*argv, "-d") == 0) debug = 1; else if (strcmp(*argv, "-reuse") == 0) reuse = 1; else if (strcmp(*argv, "-dhe512") == 0) { #ifndef OPENSSL_NO_DH dhe512 = 1; #else fprintf(stderr, "ignoring -dhe512, since I'm compiled without DH\n"); #endif } else if (strcmp(*argv, "-dhe4096") == 0) { #ifndef OPENSSL_NO_DH dhe4096 = 1; #else fprintf(stderr, "ignoring -dhe4096, since I'm compiled without DH\n"); #endif } else if (strcmp(*argv, "-dhe2048") == 0) { #ifndef OPENSSL_NO_DH dhe2048 = 1; #else fprintf(stderr, "ignoring -dhe2048, since I'm compiled without DH\n"); #endif } else if (strcmp(*argv, "-dhe1024dsa") == 0) { #ifndef OPENSSL_NO_DH dhe1024dsa = 1; #else fprintf(stderr, "ignoring -dhe1024dsa, since I'm compiled without DH\n"); #endif } else if (strcmp(*argv, "-no_dhe") == 0) no_dhe = 1; else if (strcmp(*argv, "-no_ecdhe") == 0) /* obsolete */; else if (strcmp(*argv, "-psk") == 0) { if (--argc < 1) goto bad; psk_key = *(++argv); #ifndef OPENSSL_NO_PSK if (strspn(psk_key, "abcdefABCDEF1234567890") != strlen(psk_key)) { BIO_printf(bio_err, "Not a hex number '%s'\n", *argv); goto bad; } #else no_psk = 1; #endif } else if (strcmp(*argv, "-tls1_2") == 0) { tls1_2 = 1; } else if (strcmp(*argv, "-tls1_1") == 0) { tls1_1 = 1; } else if (strcmp(*argv, "-tls1") == 0) { tls1 = 1; } else if (strcmp(*argv, "-ssl3") == 0) { ssl3 = 1; } else if (strcmp(*argv, "-dtls1") == 0) { dtls1 = 1; } else if (strcmp(*argv, "-dtls12") == 0) { dtls12 = 1; } else if (strcmp(*argv, "-dtls") == 0) { dtls = 1; } else if (strncmp(*argv, "-num", 4) == 0) { if (--argc < 1) goto bad; number = atoi(*(++argv)); if (number == 0) number = 1; } else if (strcmp(*argv, "-bytes") == 0) { if (--argc < 1) goto bad; bytes = atol(*(++argv)); if (bytes == 0L) bytes = 1L; i = strlen(argv[0]); if (argv[0][i - 1] == 'k') bytes *= 1024L; if (argv[0][i - 1] == 'm') bytes *= 1024L * 1024L; } else if (strcmp(*argv, "-cipher") == 0) { if (--argc < 1) goto bad; cipher = *(++argv); } else if (strcmp(*argv, "-ciphersuites") == 0) { if (--argc < 1) goto bad; ciphersuites = *(++argv); } else if (strcmp(*argv, "-CApath") == 0) { if (--argc < 1) goto bad; CApath = *(++argv); } else if (strcmp(*argv, "-CAfile") == 0) { if (--argc < 1) goto bad; CAfile = *(++argv); } else if (strcmp(*argv, "-bio_pair") == 0) { bio_type = BIO_PAIR; } #ifndef OPENSSL_NO_SOCK else if (strcmp(*argv, "-ipv4") == 0) { bio_type = BIO_IPV4; } else if (strcmp(*argv, "-ipv6") == 0) { bio_type = BIO_IPV6; } #endif else if (strcmp(*argv, "-f") == 0) { force = 1; } else if (strcmp(*argv, "-time") == 0) { print_time = 1; } #ifndef OPENSSL_NO_CT else if (strcmp(*argv, "-noct") == 0) { ct_validation = 0; } else if (strcmp(*argv, "-ct") == 0) { ct_validation = 1; } #endif #ifndef OPENSSL_NO_COMP else if (strcmp(*argv, "-zlib") == 0) { comp = COMP_ZLIB; } #endif else if (strcmp(*argv, "-app_verify") == 0) { app_verify_arg.app_verify = 1; } #ifndef OPENSSL_NO_NEXTPROTONEG else if (strcmp(*argv, "-npn_client") == 0) { npn_client = 1; } else if (strcmp(*argv, "-npn_server") == 0) { npn_server = 1; } else if (strcmp(*argv, "-npn_server_reject") == 0) { npn_server_reject = 1; } #endif else if (strcmp(*argv, "-serverinfo_sct") == 0) { serverinfo_sct = 1; } else if (strcmp(*argv, "-serverinfo_tack") == 0) { serverinfo_tack = 1; } else if (strcmp(*argv, "-serverinfo_file") == 0) { if (--argc < 1) goto bad; serverinfo_file = *(++argv); } else if (strcmp(*argv, "-custom_ext") == 0) { custom_ext = 1; } else if (strcmp(*argv, "-alpn_client") == 0) { if (--argc < 1) goto bad; alpn_client = *(++argv); } else if (strcmp(*argv, "-alpn_server") == 0 || strcmp(*argv, "-alpn_server1") == 0) { if (--argc < 1) goto bad; alpn_server = *(++argv); } else if (strcmp(*argv, "-alpn_server2") == 0) { if (--argc < 1) goto bad; alpn_server2 = *(++argv); } else if (strcmp(*argv, "-alpn_expected") == 0) { if (--argc < 1) goto bad; alpn_expected = *(++argv); } else if (strcmp(*argv, "-server_min_proto") == 0) { if (--argc < 1) goto bad; server_min_proto = *(++argv); } else if (strcmp(*argv, "-server_max_proto") == 0) { if (--argc < 1) goto bad; server_max_proto = *(++argv); } else if (strcmp(*argv, "-client_min_proto") == 0) { if (--argc < 1) goto bad; client_min_proto = *(++argv); } else if (strcmp(*argv, "-client_max_proto") == 0) { if (--argc < 1) goto bad; client_max_proto = *(++argv); } else if (strcmp(*argv, "-should_negotiate") == 0) { if (--argc < 1) goto bad; should_negotiate = *(++argv); } else if (strcmp(*argv, "-sn_client") == 0) { if (--argc < 1) goto bad; sn_client = *(++argv); } else if (strcmp(*argv, "-sn_server1") == 0) { if (--argc < 1) goto bad; sn_server1 = *(++argv); } else if (strcmp(*argv, "-sn_server2") == 0) { if (--argc < 1) goto bad; sn_server2 = *(++argv); } else if (strcmp(*argv, "-sn_expect1") == 0) { sn_expect = 1; } else if (strcmp(*argv, "-sn_expect2") == 0) { sn_expect = 2; } else if (strcmp(*argv, "-server_sess_out") == 0) { if (--argc < 1) goto bad; server_sess_out = *(++argv); } else if (strcmp(*argv, "-server_sess_in") == 0) { if (--argc < 1) goto bad; server_sess_in = *(++argv); } else if (strcmp(*argv, "-client_sess_out") == 0) { if (--argc < 1) goto bad; client_sess_out = *(++argv); } else if (strcmp(*argv, "-client_sess_in") == 0) { if (--argc < 1) goto bad; client_sess_in = *(++argv); } else if (strcmp(*argv, "-should_reuse") == 0) { if (--argc < 1) goto bad; should_reuse = !!atoi(*(++argv)); } else if (strcmp(*argv, "-no_ticket") == 0) { no_ticket = 1; } else { int rv; arg = argv[0]; argn = argv[1]; /* Try to process command using SSL_CONF */ rv = SSL_CONF_cmd_argv(c_cctx, &argc, &argv); /* If not processed try server */ if (rv == 0) rv = SSL_CONF_cmd_argv(s_cctx, &argc, &argv); /* Recognised: store it for later use */ if (rv > 0) { if (rv == 1) argn = NULL; if (!conf_args) { conf_args = sk_OPENSSL_STRING_new_null(); if (!conf_args) goto end; } if (!sk_OPENSSL_STRING_push(conf_args, arg)) goto end; if (!sk_OPENSSL_STRING_push(conf_args, argn)) goto end; continue; } if (rv == -3) BIO_printf(bio_err, "Missing argument for %s\n", arg); else if (rv < 0) BIO_printf(bio_err, "Error with command %s\n", arg); else if (rv == 0) BIO_printf(bio_err, "unknown option %s\n", arg); badop = 1; break; } argc--; argv++; } if (badop) { bad: sv_usage(); goto end; } if (ssl3 + tls1 + tls1_1 + tls1_2 + dtls + dtls1 + dtls12 > 1) { fprintf(stderr, "At most one of -ssl3, -tls1, -tls1_1, -tls1_2, -dtls, -dtls1 or -dtls12 should " "be requested.\n"); EXIT(1); } #ifdef OPENSSL_NO_SSL3 if (ssl3) no_protocol = 1; else #endif #ifdef OPENSSL_NO_TLS1 if (tls1) no_protocol = 1; else #endif #ifdef OPENSSL_NO_TLS1_1 if (tls1_1) no_protocol = 1; else #endif #ifdef OPENSSL_NO_TLS1_2 if (tls1_2) no_protocol = 1; else #endif #if defined(OPENSSL_NO_DTLS) || defined(OPENSSL_NO_DTLS1) if (dtls1) no_protocol = 1; else #endif #if defined(OPENSSL_NO_DTLS) || defined(OPENSSL_NO_DTLS1_2) if (dtls12) no_protocol = 1; else #endif no_protocol = 0; /* * Testing was requested for a compiled-out protocol (e.g. SSLv3). * Ideally, we would error out, but the generic test wrapper can't know * when to expect failure. So we do nothing and return success. */ if (no_protocol) { fprintf(stderr, "Testing was requested for a disabled protocol. " "Skipping tests.\n"); ret = EXIT_SUCCESS; goto end; } if (!ssl3 && !tls1 && !tls1_1 && !tls1_2 && !dtls && !dtls1 && !dtls12 && number > 1 && !reuse && !force) { fprintf(stderr, "This case cannot work. Use -f to perform " "the test anyway (and\n-d to see what happens), " "or add one of -ssl3, -tls1, -tls1_1, -tls1_2, -dtls, -dtls1, -dtls12, -reuse\n" "to avoid protocol mismatch.\n"); EXIT(1); } if (print_time) { if (bio_type != BIO_PAIR) { fprintf(stderr, "Using BIO pair (-bio_pair)\n"); bio_type = BIO_PAIR; } if (number < 50 && !force) fprintf(stderr, "Warning: For accurate timings, use more connections (e.g. -num 1000)\n"); } #ifndef OPENSSL_NO_COMP if (comp == COMP_ZLIB) cm = COMP_zlib(); if (cm != NULL) { if (COMP_get_type(cm) != NID_undef) { if (SSL_COMP_add_compression_method(comp, cm) != 0) { fprintf(stderr, "Failed to add compression method\n"); ERR_print_errors_fp(stderr); } } else { fprintf(stderr, "Warning: %s compression not supported\n", comp == COMP_ZLIB ? "zlib" : "unknown"); ERR_print_errors_fp(stderr); } } ssl_comp_methods = SSL_COMP_get_compression_methods(); n = sk_SSL_COMP_num(ssl_comp_methods); if (n) { int j; printf("Available compression methods:"); for (j = 0; j < n; j++) { SSL_COMP *c = sk_SSL_COMP_value(ssl_comp_methods, j); printf(" %s:%d", SSL_COMP_get0_name(c), SSL_COMP_get_id(c)); } printf("\n"); } #endif #ifndef OPENSSL_NO_TLS meth = TLS_method(); if (ssl3) { min_version = SSL3_VERSION; max_version = SSL3_VERSION; } else if (tls1) { min_version = TLS1_VERSION; max_version = TLS1_VERSION; } else if (tls1_1) { min_version = TLS1_1_VERSION; max_version = TLS1_1_VERSION; } else if (tls1_2) { min_version = TLS1_2_VERSION; max_version = TLS1_2_VERSION; } else { min_version = SSL3_VERSION; max_version = TLS_MAX_VERSION; } #endif #ifndef OPENSSL_NO_DTLS if (dtls || dtls1 || dtls12) { meth = DTLS_method(); if (dtls1) { min_version = DTLS1_VERSION; max_version = DTLS1_VERSION; } else if (dtls12) { min_version = DTLS1_2_VERSION; max_version = DTLS1_2_VERSION; } else { min_version = DTLS_MIN_VERSION; max_version = DTLS_MAX_VERSION; } } #endif c_ctx = SSL_CTX_new(meth); s_ctx = SSL_CTX_new(meth); s_ctx2 = SSL_CTX_new(meth); /* no SSL_CTX_dup! */ if ((c_ctx == NULL) || (s_ctx == NULL) || (s_ctx2 == NULL)) { ERR_print_errors(bio_err); goto end; } /* * Since we will use low security ciphersuites and keys for testing set * security level to zero by default. Tests can override this by adding * "@SECLEVEL=n" to the cipher string. */ SSL_CTX_set_security_level(c_ctx, 0); SSL_CTX_set_security_level(s_ctx, 0); SSL_CTX_set_security_level(s_ctx2, 0); if (no_ticket) { SSL_CTX_set_options(c_ctx, SSL_OP_NO_TICKET); SSL_CTX_set_options(s_ctx, SSL_OP_NO_TICKET); } if (SSL_CTX_set_min_proto_version(c_ctx, min_version) == 0) goto end; if (SSL_CTX_set_max_proto_version(c_ctx, max_version) == 0) goto end; if (SSL_CTX_set_min_proto_version(s_ctx, min_version) == 0) goto end; if (SSL_CTX_set_max_proto_version(s_ctx, max_version) == 0) goto end; if (cipher != NULL) { if (strcmp(cipher, "") == 0) { if (!SSL_CTX_set_cipher_list(c_ctx, cipher)) { if (ERR_GET_REASON(ERR_peek_error()) == SSL_R_NO_CIPHER_MATCH) { ERR_clear_error(); } else { ERR_print_errors(bio_err); goto end; } } else { /* Should have failed when clearing all TLSv1.2 ciphers. */ fprintf(stderr, "CLEARING ALL TLSv1.2 CIPHERS SHOULD FAIL\n"); goto end; } if (!SSL_CTX_set_cipher_list(s_ctx, cipher)) { if (ERR_GET_REASON(ERR_peek_error()) == SSL_R_NO_CIPHER_MATCH) { ERR_clear_error(); } else { ERR_print_errors(bio_err); goto end; } } else { /* Should have failed when clearing all TLSv1.2 ciphers. */ fprintf(stderr, "CLEARING ALL TLSv1.2 CIPHERS SHOULD FAIL\n"); goto end; } if (!SSL_CTX_set_cipher_list(s_ctx2, cipher)) { if (ERR_GET_REASON(ERR_peek_error()) == SSL_R_NO_CIPHER_MATCH) { ERR_clear_error(); } else { ERR_print_errors(bio_err); goto end; } } else { /* Should have failed when clearing all TLSv1.2 ciphers. */ fprintf(stderr, "CLEARING ALL TLSv1.2 CIPHERS SHOULD FAIL\n"); goto end; } } else { if (!SSL_CTX_set_cipher_list(c_ctx, cipher) || !SSL_CTX_set_cipher_list(s_ctx, cipher) || !SSL_CTX_set_cipher_list(s_ctx2, cipher)) { ERR_print_errors(bio_err); goto end; } } } if (ciphersuites != NULL) { if (!SSL_CTX_set_ciphersuites(c_ctx, ciphersuites) || !SSL_CTX_set_ciphersuites(s_ctx, ciphersuites) || !SSL_CTX_set_ciphersuites(s_ctx2, ciphersuites)) { ERR_print_errors(bio_err); goto end; } } #ifndef OPENSSL_NO_CT if (ct_validation && !SSL_CTX_enable_ct(c_ctx, SSL_CT_VALIDATION_STRICT)) { ERR_print_errors(bio_err); goto end; } #endif /* Process SSL_CONF arguments */ SSL_CONF_CTX_set_ssl_ctx(c_cctx, c_ctx); SSL_CONF_CTX_set_ssl_ctx(s_cctx, s_ctx); SSL_CONF_CTX_set_ssl_ctx(s_cctx2, s_ctx2); for (i = 0; i < sk_OPENSSL_STRING_num(conf_args); i += 2) { int rv; arg = sk_OPENSSL_STRING_value(conf_args, i); argn = sk_OPENSSL_STRING_value(conf_args, i + 1); rv = SSL_CONF_cmd(c_cctx, arg, argn); /* If not recognised use server context */ if (rv == -2) { rv = SSL_CONF_cmd(s_cctx2, arg, argn); if (rv > 0) rv = SSL_CONF_cmd(s_cctx, arg, argn); } if (rv <= 0) { BIO_printf(bio_err, "Error processing %s %s\n", arg, argn ? argn : ""); ERR_print_errors(bio_err); goto end; } } if (!SSL_CONF_CTX_finish(s_cctx) || !SSL_CONF_CTX_finish(c_cctx) || !SSL_CONF_CTX_finish(s_cctx2)) { BIO_puts(bio_err, "Error finishing context\n"); ERR_print_errors(bio_err); goto end; } #ifndef OPENSSL_NO_DH if (!no_dhe) { if (dhe1024dsa) { dh = get_dh1024dsa(); } else if (dhe512) dh = get_dh512(); else if (dhe2048) dh = get_dh2048(); else if (dhe4096) dh = get_dh4096(); else dh = get_dh1024(); SSL_CTX_set_tmp_dh(s_ctx, dh); SSL_CTX_set_tmp_dh(s_ctx2, dh); DH_free(dh); } #else (void)no_dhe; #endif if ((!SSL_CTX_load_verify_locations(s_ctx, CAfile, CApath)) || (!SSL_CTX_set_default_verify_paths(s_ctx)) || (!SSL_CTX_load_verify_locations(s_ctx2, CAfile, CApath)) || (!SSL_CTX_set_default_verify_paths(s_ctx2)) || (!SSL_CTX_load_verify_locations(c_ctx, CAfile, CApath)) || (!SSL_CTX_set_default_verify_paths(c_ctx))) { ERR_print_errors(bio_err); } #ifndef OPENSSL_NO_CT if (!SSL_CTX_set_default_ctlog_list_file(s_ctx) || !SSL_CTX_set_default_ctlog_list_file(s_ctx2) || !SSL_CTX_set_default_ctlog_list_file(c_ctx)) { ERR_print_errors(bio_err); } #endif if (client_auth) { printf("client authentication\n"); SSL_CTX_set_verify(s_ctx, SSL_VERIFY_PEER | SSL_VERIFY_FAIL_IF_NO_PEER_CERT, verify_callback); SSL_CTX_set_verify(s_ctx2, SSL_VERIFY_PEER | SSL_VERIFY_FAIL_IF_NO_PEER_CERT, verify_callback); SSL_CTX_set_cert_verify_callback(s_ctx, app_verify_callback, &app_verify_arg); SSL_CTX_set_cert_verify_callback(s_ctx2, app_verify_callback, &app_verify_arg); } if (server_auth) { printf("server authentication\n"); SSL_CTX_set_verify(c_ctx, SSL_VERIFY_PEER, verify_callback); SSL_CTX_set_cert_verify_callback(c_ctx, app_verify_callback, &app_verify_arg); } { int session_id_context = 0; if (!SSL_CTX_set_session_id_context(s_ctx, (void *)&session_id_context, sizeof(session_id_context)) || !SSL_CTX_set_session_id_context(s_ctx2, (void *)&session_id_context, sizeof(session_id_context))) { ERR_print_errors(bio_err); goto end; } } /* Use PSK only if PSK key is given */ if (psk_key != NULL) { /* * no_psk is used to avoid putting psk command to openssl tool */ if (no_psk) { /* * if PSK is not compiled in and psk key is given, do nothing and * exit successfully */ ret = EXIT_SUCCESS; goto end; } #ifndef OPENSSL_NO_PSK SSL_CTX_set_psk_client_callback(c_ctx, psk_client_callback); SSL_CTX_set_psk_server_callback(s_ctx, psk_server_callback); SSL_CTX_set_psk_server_callback(s_ctx2, psk_server_callback); if (debug) BIO_printf(bio_err, "setting PSK identity hint to s_ctx\n"); if (!SSL_CTX_use_psk_identity_hint(s_ctx, "ctx server identity_hint") || !SSL_CTX_use_psk_identity_hint(s_ctx2, "ctx server identity_hint")) { BIO_printf(bio_err, "error setting PSK identity hint to s_ctx\n"); ERR_print_errors(bio_err); goto end; } #endif } #ifndef OPENSSL_NO_NEXTPROTONEG if (npn_client) { SSL_CTX_set_next_proto_select_cb(c_ctx, cb_client_npn, NULL); } if (npn_server) { if (npn_server_reject) { BIO_printf(bio_err, "Can't have both -npn_server and -npn_server_reject\n"); goto end; } SSL_CTX_set_npn_advertised_cb(s_ctx, cb_server_npn, NULL); SSL_CTX_set_npn_advertised_cb(s_ctx2, cb_server_npn, NULL); } if (npn_server_reject) { SSL_CTX_set_npn_advertised_cb(s_ctx, cb_server_rejects_npn, NULL); SSL_CTX_set_npn_advertised_cb(s_ctx2, cb_server_rejects_npn, NULL); } #endif if (serverinfo_sct) { if (!SSL_CTX_add_client_custom_ext(c_ctx, TLSEXT_TYPE_signed_certificate_timestamp, NULL, NULL, NULL, serverinfo_cli_parse_cb, NULL)) { BIO_printf(bio_err, "Error adding SCT extension\n"); goto end; } } if (serverinfo_tack) { if (!SSL_CTX_add_client_custom_ext(c_ctx, TACK_EXT_TYPE, NULL, NULL, NULL, serverinfo_cli_parse_cb, NULL)) { BIO_printf(bio_err, "Error adding TACK extension\n"); goto end; } } if (serverinfo_file) if (!SSL_CTX_use_serverinfo_file(s_ctx, serverinfo_file) || !SSL_CTX_use_serverinfo_file(s_ctx2, serverinfo_file)) { BIO_printf(bio_err, "missing serverinfo file\n"); goto end; } if (custom_ext) { if (!SSL_CTX_add_client_custom_ext(c_ctx, CUSTOM_EXT_TYPE_0, custom_ext_0_cli_add_cb, NULL, NULL, custom_ext_0_cli_parse_cb, NULL) || !SSL_CTX_add_client_custom_ext(c_ctx, CUSTOM_EXT_TYPE_1, custom_ext_1_cli_add_cb, NULL, NULL, custom_ext_1_cli_parse_cb, NULL) || !SSL_CTX_add_client_custom_ext(c_ctx, CUSTOM_EXT_TYPE_2, custom_ext_2_cli_add_cb, NULL, NULL, custom_ext_2_cli_parse_cb, NULL) || !SSL_CTX_add_client_custom_ext(c_ctx, CUSTOM_EXT_TYPE_3, custom_ext_3_cli_add_cb, NULL, NULL, custom_ext_3_cli_parse_cb, NULL) || !SSL_CTX_add_server_custom_ext(s_ctx, CUSTOM_EXT_TYPE_0, custom_ext_0_srv_add_cb, NULL, NULL, custom_ext_0_srv_parse_cb, NULL) || !SSL_CTX_add_server_custom_ext(s_ctx2, CUSTOM_EXT_TYPE_0, custom_ext_0_srv_add_cb, NULL, NULL, custom_ext_0_srv_parse_cb, NULL) || !SSL_CTX_add_server_custom_ext(s_ctx, CUSTOM_EXT_TYPE_1, custom_ext_1_srv_add_cb, NULL, NULL, custom_ext_1_srv_parse_cb, NULL) || !SSL_CTX_add_server_custom_ext(s_ctx2, CUSTOM_EXT_TYPE_1, custom_ext_1_srv_add_cb, NULL, NULL, custom_ext_1_srv_parse_cb, NULL) || !SSL_CTX_add_server_custom_ext(s_ctx, CUSTOM_EXT_TYPE_2, custom_ext_2_srv_add_cb, NULL, NULL, custom_ext_2_srv_parse_cb, NULL) || !SSL_CTX_add_server_custom_ext(s_ctx2, CUSTOM_EXT_TYPE_2, custom_ext_2_srv_add_cb, NULL, NULL, custom_ext_2_srv_parse_cb, NULL) || !SSL_CTX_add_server_custom_ext(s_ctx, CUSTOM_EXT_TYPE_3, custom_ext_3_srv_add_cb, NULL, NULL, custom_ext_3_srv_parse_cb, NULL) || !SSL_CTX_add_server_custom_ext(s_ctx2, CUSTOM_EXT_TYPE_3, custom_ext_3_srv_add_cb, NULL, NULL, custom_ext_3_srv_parse_cb, NULL)) { BIO_printf(bio_err, "Error setting custom extensions\n"); goto end; } } if (alpn_server) SSL_CTX_set_alpn_select_cb(s_ctx, cb_server_alpn, alpn_server); if (alpn_server2) SSL_CTX_set_alpn_select_cb(s_ctx2, cb_server_alpn, alpn_server2); if (alpn_client) { size_t alpn_len; unsigned char *alpn = next_protos_parse(&alpn_len, alpn_client); if (alpn == NULL) { BIO_printf(bio_err, "Error parsing -alpn_client argument\n"); goto end; } /* Returns 0 on success!! */ if (SSL_CTX_set_alpn_protos(c_ctx, alpn, alpn_len)) { BIO_printf(bio_err, "Error setting ALPN\n"); OPENSSL_free(alpn); goto end; } OPENSSL_free(alpn); } if (server_sess_in != NULL) { server_sess = read_session(server_sess_in); if (server_sess == NULL) goto end; } if (client_sess_in != NULL) { client_sess = read_session(client_sess_in); if (client_sess == NULL) goto end; } if (server_sess_out != NULL || server_sess_in != NULL) { char *keys; long size; /* Use a fixed key so that we can decrypt the ticket. */ size = SSL_CTX_set_tlsext_ticket_keys(s_ctx, NULL, 0); keys = OPENSSL_zalloc(size); SSL_CTX_set_tlsext_ticket_keys(s_ctx, keys, size); OPENSSL_free(keys); } if (sn_server1 != NULL || sn_server2 != NULL) SSL_CTX_set_tlsext_servername_callback(s_ctx, servername_cb); c_ssl = SSL_new(c_ctx); s_ssl = SSL_new(s_ctx); if (sn_client) SSL_set_tlsext_host_name(c_ssl, sn_client); if (!set_protocol_version(server_min_proto, s_ssl, SSL_CTRL_SET_MIN_PROTO_VERSION)) goto end; if (!set_protocol_version(server_max_proto, s_ssl, SSL_CTRL_SET_MAX_PROTO_VERSION)) goto end; if (!set_protocol_version(client_min_proto, c_ssl, SSL_CTRL_SET_MIN_PROTO_VERSION)) goto end; if (!set_protocol_version(client_max_proto, c_ssl, SSL_CTRL_SET_MAX_PROTO_VERSION)) goto end; if (server_sess) { if (SSL_CTX_add_session(s_ctx, server_sess) == 0) { BIO_printf(bio_err, "Can't add server session\n"); ERR_print_errors(bio_err); goto end; } } BIO_printf(bio_stdout, "Doing handshakes=%d bytes=%ld\n", number, bytes); for (i = 0; i < number; i++) { if (!reuse) { if (!SSL_set_session(c_ssl, NULL)) { BIO_printf(bio_err, "Failed to set session\n"); goto end; } } if (client_sess_in != NULL) { if (SSL_set_session(c_ssl, client_sess) == 0) { BIO_printf(bio_err, "Can't set client session\n"); ERR_print_errors(bio_err); goto end; } } switch (bio_type) { case BIO_MEM: ret = doit(s_ssl, c_ssl, bytes); break; case BIO_PAIR: ret = doit_biopair(s_ssl, c_ssl, bytes, &s_time, &c_time); break; #ifndef OPENSSL_NO_SOCK case BIO_IPV4: ret = doit_localhost(s_ssl, c_ssl, BIO_FAMILY_IPV4, bytes, &s_time, &c_time); break; case BIO_IPV6: ret = doit_localhost(s_ssl, c_ssl, BIO_FAMILY_IPV6, bytes, &s_time, &c_time); break; #else case BIO_IPV4: case BIO_IPV6: ret = EXIT_FAILURE; goto err; #endif } if (ret != EXIT_SUCCESS) break; } if (should_negotiate && ret == EXIT_SUCCESS && strcmp(should_negotiate, "fail-server") != 0 && strcmp(should_negotiate, "fail-client") != 0) { int version = protocol_from_string(should_negotiate); if (version < 0) { BIO_printf(bio_err, "Error parsing: %s\n", should_negotiate); ret = EXIT_FAILURE; goto err; } if (SSL_version(c_ssl) != version) { BIO_printf(bio_err, "Unexpected version negotiated. " "Expected: %s, got %s\n", should_negotiate, SSL_get_version(c_ssl)); ret = EXIT_FAILURE; goto err; } } if (should_reuse != -1) { if (SSL_session_reused(s_ssl) != should_reuse || SSL_session_reused(c_ssl) != should_reuse) { BIO_printf(bio_err, "Unexpected session reuse state. " "Expected: %d, server: %d, client: %d\n", should_reuse, SSL_session_reused(s_ssl), SSL_session_reused(c_ssl)); ret = EXIT_FAILURE; goto err; } } if (server_sess_out != NULL) { if (write_session(server_sess_out, SSL_get_session(s_ssl)) == 0) { ret = EXIT_FAILURE; goto err; } } if (client_sess_out != NULL) { if (write_session(client_sess_out, SSL_get_session(c_ssl)) == 0) { ret = EXIT_FAILURE; goto err; } } if (!verbose) { print_details(c_ssl, ""); } if (print_time) { #ifdef CLOCKS_PER_SEC /* * "To determine the time in seconds, the value returned by the clock * function should be divided by the value of the macro * CLOCKS_PER_SEC." -- ISO/IEC 9899 */ BIO_printf(bio_stdout, "Approximate total server time: %6.2f s\n" "Approximate total client time: %6.2f s\n", (double)s_time / CLOCKS_PER_SEC, (double)c_time / CLOCKS_PER_SEC); #else BIO_printf(bio_stdout, "Approximate total server time: %6.2f units\n" "Approximate total client time: %6.2f units\n", (double)s_time, (double)c_time); #endif } err: SSL_free(s_ssl); SSL_free(c_ssl); end: SSL_CTX_free(s_ctx); SSL_CTX_free(s_ctx2); SSL_CTX_free(c_ctx); SSL_CONF_CTX_free(s_cctx); SSL_CONF_CTX_free(s_cctx2); SSL_CONF_CTX_free(c_cctx); sk_OPENSSL_STRING_free(conf_args); BIO_free(bio_stdout); SSL_SESSION_free(server_sess); SSL_SESSION_free(client_sess); #ifndef OPENSSL_NO_CRYPTO_MDEBUG if (CRYPTO_mem_leaks(bio_err) <= 0) ret = EXIT_FAILURE; #endif BIO_free(bio_err); EXIT(ret); } #ifndef OPENSSL_NO_SOCK int doit_localhost(SSL *s_ssl, SSL *c_ssl, int family, long count, clock_t *s_time, clock_t *c_time) { long cw_num = count, cr_num = count, sw_num = count, sr_num = count; BIO *s_ssl_bio = NULL, *c_ssl_bio = NULL; BIO *acpt = NULL, *server = NULL, *client = NULL; char addr_str[40]; int ret = EXIT_FAILURE; int err_in_client = 0; int err_in_server = 0; acpt = BIO_new_accept(family == BIO_FAMILY_IPV4 ? "127.0.0.1:0" : "[::1]:0"); if (acpt == NULL) goto err; BIO_set_accept_ip_family(acpt, family); BIO_set_bind_mode(acpt, BIO_SOCK_NONBLOCK | BIO_SOCK_REUSEADDR); if (BIO_do_accept(acpt) <= 0) goto err; BIO_snprintf(addr_str, sizeof(addr_str), ":%s", BIO_get_accept_port(acpt)); client = BIO_new_connect(addr_str); BIO_set_conn_ip_family(client, family); if (!client) goto err; if (BIO_set_nbio(client, 1) <= 0) goto err; if (BIO_set_nbio(acpt, 1) <= 0) goto err; { int st_connect = 0, st_accept = 0; while(!st_connect || !st_accept) { if (!st_connect) { if (BIO_do_connect(client) <= 0) { if (!BIO_should_retry(client)) goto err; } else { st_connect = 1; } } if (!st_accept) { if (BIO_do_accept(acpt) <= 0) { if (!BIO_should_retry(acpt)) goto err; } else { st_accept = 1; } } } } /* We're not interested in accepting further connects */ server = BIO_pop(acpt); BIO_free_all(acpt); acpt = NULL; s_ssl_bio = BIO_new(BIO_f_ssl()); if (!s_ssl_bio) goto err; c_ssl_bio = BIO_new(BIO_f_ssl()); if (!c_ssl_bio) goto err; SSL_set_connect_state(c_ssl); SSL_set_bio(c_ssl, client, client); (void)BIO_set_ssl(c_ssl_bio, c_ssl, BIO_NOCLOSE); SSL_set_accept_state(s_ssl); SSL_set_bio(s_ssl, server, server); (void)BIO_set_ssl(s_ssl_bio, s_ssl, BIO_NOCLOSE); do { /*- * c_ssl_bio: SSL filter BIO * * client: I/O for SSL library * * * server: I/O for SSL library * * s_ssl_bio: SSL filter BIO */ /* * We have non-blocking behaviour throughout this test program, but * can be sure that there is *some* progress in each iteration; so we * don't have to worry about ..._SHOULD_READ or ..._SHOULD_WRITE -- * we just try everything in each iteration */ { /* CLIENT */ char cbuf[1024 * 8]; int i, r; clock_t c_clock = clock(); memset(cbuf, 0, sizeof(cbuf)); if (debug) if (SSL_in_init(c_ssl)) printf("client waiting in SSL_connect - %s\n", SSL_state_string_long(c_ssl)); if (cw_num > 0) { /* Write to server. */ if (cw_num > (long)sizeof(cbuf)) i = sizeof(cbuf); else i = (int)cw_num; r = BIO_write(c_ssl_bio, cbuf, i); if (r < 0) { if (!BIO_should_retry(c_ssl_bio)) { fprintf(stderr, "ERROR in CLIENT\n"); err_in_client = 1; goto err; } /* * BIO_should_retry(...) can just be ignored here. The * library expects us to call BIO_write with the same * arguments again, and that's what we will do in the * next iteration. */ } else if (r == 0) { fprintf(stderr, "SSL CLIENT STARTUP FAILED\n"); goto err; } else { if (debug) printf("client wrote %d\n", r); cw_num -= r; } } if (cr_num > 0) { /* Read from server. */ r = BIO_read(c_ssl_bio, cbuf, sizeof(cbuf)); if (r < 0) { if (!BIO_should_retry(c_ssl_bio)) { fprintf(stderr, "ERROR in CLIENT\n"); err_in_client = 1; goto err; } /* * Again, "BIO_should_retry" can be ignored. */ } else if (r == 0) { fprintf(stderr, "SSL CLIENT STARTUP FAILED\n"); goto err; } else { if (debug) printf("client read %d\n", r); cr_num -= r; } } /* * c_time and s_time increments will typically be very small * (depending on machine speed and clock tick intervals), but * sampling over a large number of connections should result in * fairly accurate figures. We cannot guarantee a lot, however * -- if each connection lasts for exactly one clock tick, it * will be counted only for the client or only for the server or * even not at all. */ *c_time += (clock() - c_clock); } { /* SERVER */ char sbuf[1024 * 8]; int i, r; clock_t s_clock = clock(); memset(sbuf, 0, sizeof(sbuf)); if (debug) if (SSL_in_init(s_ssl)) printf("server waiting in SSL_accept - %s\n", SSL_state_string_long(s_ssl)); if (sw_num > 0) { /* Write to client. */ if (sw_num > (long)sizeof(sbuf)) i = sizeof(sbuf); else i = (int)sw_num; r = BIO_write(s_ssl_bio, sbuf, i); if (r < 0) { if (!BIO_should_retry(s_ssl_bio)) { fprintf(stderr, "ERROR in SERVER\n"); err_in_server = 1; goto err; } /* Ignore "BIO_should_retry". */ } else if (r == 0) { fprintf(stderr, "SSL SERVER STARTUP FAILED\n"); goto err; } else { if (debug) printf("server wrote %d\n", r); sw_num -= r; } } if (sr_num > 0) { /* Read from client. */ r = BIO_read(s_ssl_bio, sbuf, sizeof(sbuf)); if (r < 0) { if (!BIO_should_retry(s_ssl_bio)) { fprintf(stderr, "ERROR in SERVER\n"); err_in_server = 1; goto err; } /* blah, blah */ } else if (r == 0) { fprintf(stderr, "SSL SERVER STARTUP FAILED\n"); goto err; } else { if (debug) printf("server read %d\n", r); sr_num -= r; } } *s_time += (clock() - s_clock); } } while (cw_num > 0 || cr_num > 0 || sw_num > 0 || sr_num > 0); if (verbose) print_details(c_ssl, "DONE via TCP connect: "); # ifndef OPENSSL_NO_NEXTPROTONEG if (verify_npn(c_ssl, s_ssl) < 0) goto end; # endif if (verify_serverinfo() < 0) { fprintf(stderr, "Server info verify error\n"); goto err; } if (verify_alpn(c_ssl, s_ssl) < 0 || verify_servername(c_ssl, s_ssl) < 0) goto err; if (custom_ext_error) { fprintf(stderr, "Custom extension error\n"); goto err; } # ifndef OPENSSL_NO_NEXTPROTONEG end: # endif ret = EXIT_SUCCESS; err: ERR_print_errors(bio_err); BIO_free_all(acpt); BIO_free(server); BIO_free(client); BIO_free(s_ssl_bio); BIO_free(c_ssl_bio); if (should_negotiate != NULL && strcmp(should_negotiate, "fail-client") == 0) ret = (err_in_client != 0) ? EXIT_SUCCESS : EXIT_FAILURE; else if (should_negotiate != NULL && strcmp(should_negotiate, "fail-server") == 0) ret = (err_in_server != 0) ? EXIT_SUCCESS : EXIT_FAILURE; return ret; } #endif int doit_biopair(SSL *s_ssl, SSL *c_ssl, long count, clock_t *s_time, clock_t *c_time) { long cw_num = count, cr_num = count, sw_num = count, sr_num = count; BIO *s_ssl_bio = NULL, *c_ssl_bio = NULL; BIO *server = NULL, *server_io = NULL, *client = NULL, *client_io = NULL; int ret = EXIT_FAILURE; int err_in_client = 0; int err_in_server = 0; size_t bufsiz = 256; /* small buffer for testing */ if (!BIO_new_bio_pair(&server, bufsiz, &server_io, bufsiz)) goto err; if (!BIO_new_bio_pair(&client, bufsiz, &client_io, bufsiz)) goto err; s_ssl_bio = BIO_new(BIO_f_ssl()); if (!s_ssl_bio) goto err; c_ssl_bio = BIO_new(BIO_f_ssl()); if (!c_ssl_bio) goto err; SSL_set_connect_state(c_ssl); SSL_set_bio(c_ssl, client, client); (void)BIO_set_ssl(c_ssl_bio, c_ssl, BIO_NOCLOSE); SSL_set_accept_state(s_ssl); SSL_set_bio(s_ssl, server, server); (void)BIO_set_ssl(s_ssl_bio, s_ssl, BIO_NOCLOSE); do { /*- * c_ssl_bio: SSL filter BIO * * client: pseudo-I/O for SSL library * * client_io: client's SSL communication; usually to be * relayed over some I/O facility, but in this * test program, we're the server, too: * * server_io: server's SSL communication * * server: pseudo-I/O for SSL library * * s_ssl_bio: SSL filter BIO * * The client and the server each employ a "BIO pair": * client + client_io, server + server_io. * BIO pairs are symmetric. A BIO pair behaves similar * to a non-blocking socketpair (but both endpoints must * be handled by the same thread). * [Here we could connect client and server to the ends * of a single BIO pair, but then this code would be less * suitable as an example for BIO pairs in general.] * * Useful functions for querying the state of BIO pair endpoints: * * BIO_ctrl_pending(bio) number of bytes we can read now * BIO_ctrl_get_read_request(bio) number of bytes needed to fulfill * other side's read attempt * BIO_ctrl_get_write_guarantee(bio) number of bytes we can write now * * ..._read_request is never more than ..._write_guarantee; * it depends on the application which one you should use. */ /* * We have non-blocking behaviour throughout this test program, but * can be sure that there is *some* progress in each iteration; so we * don't have to worry about ..._SHOULD_READ or ..._SHOULD_WRITE -- * we just try everything in each iteration */ { /* CLIENT */ char cbuf[1024 * 8]; int i, r; clock_t c_clock = clock(); memset(cbuf, 0, sizeof(cbuf)); if (debug) if (SSL_in_init(c_ssl)) printf("client waiting in SSL_connect - %s\n", SSL_state_string_long(c_ssl)); if (cw_num > 0) { /* Write to server. */ if (cw_num > (long)sizeof(cbuf)) i = sizeof(cbuf); else i = (int)cw_num; r = BIO_write(c_ssl_bio, cbuf, i); if (r < 0) { if (!BIO_should_retry(c_ssl_bio)) { fprintf(stderr, "ERROR in CLIENT\n"); err_in_client = 1; goto err; } /* * BIO_should_retry(...) can just be ignored here. The * library expects us to call BIO_write with the same * arguments again, and that's what we will do in the * next iteration. */ } else if (r == 0) { fprintf(stderr, "SSL CLIENT STARTUP FAILED\n"); goto err; } else { if (debug) printf("client wrote %d\n", r); cw_num -= r; } } if (cr_num > 0) { /* Read from server. */ r = BIO_read(c_ssl_bio, cbuf, sizeof(cbuf)); if (r < 0) { if (!BIO_should_retry(c_ssl_bio)) { fprintf(stderr, "ERROR in CLIENT\n"); err_in_client = 1; goto err; } /* * Again, "BIO_should_retry" can be ignored. */ } else if (r == 0) { fprintf(stderr, "SSL CLIENT STARTUP FAILED\n"); goto err; } else { if (debug) printf("client read %d\n", r); cr_num -= r; } } /* * c_time and s_time increments will typically be very small * (depending on machine speed and clock tick intervals), but * sampling over a large number of connections should result in * fairly accurate figures. We cannot guarantee a lot, however * -- if each connection lasts for exactly one clock tick, it * will be counted only for the client or only for the server or * even not at all. */ *c_time += (clock() - c_clock); } { /* SERVER */ char sbuf[1024 * 8]; int i, r; clock_t s_clock = clock(); memset(sbuf, 0, sizeof(sbuf)); if (debug) if (SSL_in_init(s_ssl)) printf("server waiting in SSL_accept - %s\n", SSL_state_string_long(s_ssl)); if (sw_num > 0) { /* Write to client. */ if (sw_num > (long)sizeof(sbuf)) i = sizeof(sbuf); else i = (int)sw_num; r = BIO_write(s_ssl_bio, sbuf, i); if (r < 0) { if (!BIO_should_retry(s_ssl_bio)) { fprintf(stderr, "ERROR in SERVER\n"); err_in_server = 1; goto err; } /* Ignore "BIO_should_retry". */ } else if (r == 0) { fprintf(stderr, "SSL SERVER STARTUP FAILED\n"); goto err; } else { if (debug) printf("server wrote %d\n", r); sw_num -= r; } } if (sr_num > 0) { /* Read from client. */ r = BIO_read(s_ssl_bio, sbuf, sizeof(sbuf)); if (r < 0) { if (!BIO_should_retry(s_ssl_bio)) { fprintf(stderr, "ERROR in SERVER\n"); err_in_server = 1; goto err; } /* blah, blah */ } else if (r == 0) { fprintf(stderr, "SSL SERVER STARTUP FAILED\n"); goto err; } else { if (debug) printf("server read %d\n", r); sr_num -= r; } } *s_time += (clock() - s_clock); } { /* "I/O" BETWEEN CLIENT AND SERVER. */ size_t r1, r2; BIO *io1 = server_io, *io2 = client_io; /* * we use the non-copying interface for io1 and the standard * BIO_write/BIO_read interface for io2 */ static int prev_progress = 1; int progress = 0; /* io1 to io2 */ do { size_t num; int r; r1 = BIO_ctrl_pending(io1); r2 = BIO_ctrl_get_write_guarantee(io2); num = r1; if (r2 < num) num = r2; if (num) { char *dataptr; if (INT_MAX < num) /* yeah, right */ num = INT_MAX; r = BIO_nread(io1, &dataptr, (int)num); assert(r > 0); assert(r <= (int)num); /* * possibly r < num (non-contiguous data) */ num = r; r = BIO_write(io2, dataptr, (int)num); if (r != (int)num) { /* can't happen */ fprintf(stderr, "ERROR: BIO_write could not write " "BIO_ctrl_get_write_guarantee() bytes"); goto err; } progress = 1; if (debug) printf((io1 == client_io) ? "C->S relaying: %d bytes\n" : "S->C relaying: %d bytes\n", (int)num); } } while (r1 && r2); /* io2 to io1 */ { size_t num; int r; r1 = BIO_ctrl_pending(io2); r2 = BIO_ctrl_get_read_request(io1); /* * here we could use ..._get_write_guarantee instead of * ..._get_read_request, but by using the latter we test * restartability of the SSL implementation more thoroughly */ num = r1; if (r2 < num) num = r2; if (num) { char *dataptr; if (INT_MAX < num) num = INT_MAX; if (num > 1) --num; /* test restartability even more thoroughly */ r = BIO_nwrite0(io1, &dataptr); assert(r > 0); if (r < (int)num) num = r; r = BIO_read(io2, dataptr, (int)num); if (r != (int)num) { /* can't happen */ fprintf(stderr, "ERROR: BIO_read could not read " "BIO_ctrl_pending() bytes"); goto err; } progress = 1; r = BIO_nwrite(io1, &dataptr, (int)num); if (r != (int)num) { /* can't happen */ fprintf(stderr, "ERROR: BIO_nwrite() did not accept " "BIO_nwrite0() bytes"); goto err; } if (debug) printf((io2 == client_io) ? "C->S relaying: %d bytes\n" : "S->C relaying: %d bytes\n", (int)num); } } /* no loop, BIO_ctrl_get_read_request now * returns 0 anyway */ if (!progress && !prev_progress) if (cw_num > 0 || cr_num > 0 || sw_num > 0 || sr_num > 0) { fprintf(stderr, "ERROR: got stuck\n"); fprintf(stderr, " ERROR.\n"); goto err; } prev_progress = progress; } } while (cw_num > 0 || cr_num > 0 || sw_num > 0 || sr_num > 0); if (verbose) print_details(c_ssl, "DONE via BIO pair: "); #ifndef OPENSSL_NO_NEXTPROTONEG if (verify_npn(c_ssl, s_ssl) < 0) goto end; #endif if (verify_serverinfo() < 0) { fprintf(stderr, "Server info verify error\n"); goto err; } if (verify_alpn(c_ssl, s_ssl) < 0 || verify_servername(c_ssl, s_ssl) < 0) goto err; if (custom_ext_error) { fprintf(stderr, "Custom extension error\n"); goto err; } #ifndef OPENSSL_NO_NEXTPROTONEG end: #endif ret = EXIT_SUCCESS; err: ERR_print_errors(bio_err); BIO_free(server); BIO_free(server_io); BIO_free(client); BIO_free(client_io); BIO_free(s_ssl_bio); BIO_free(c_ssl_bio); if (should_negotiate != NULL && strcmp(should_negotiate, "fail-client") == 0) ret = (err_in_client != 0) ? EXIT_SUCCESS : EXIT_FAILURE; else if (should_negotiate != NULL && strcmp(should_negotiate, "fail-server") == 0) ret = (err_in_server != 0) ? EXIT_SUCCESS : EXIT_FAILURE; return ret; } #define W_READ 1 #define W_WRITE 2 #define C_DONE 1 #define S_DONE 2 int doit(SSL *s_ssl, SSL *c_ssl, long count) { char *cbuf = NULL, *sbuf = NULL; long bufsiz; long cw_num = count, cr_num = count; long sw_num = count, sr_num = count; int ret = EXIT_FAILURE; BIO *c_to_s = NULL; BIO *s_to_c = NULL; BIO *c_bio = NULL; BIO *s_bio = NULL; int c_r, c_w, s_r, s_w; int i, j; int done = 0; int c_write, s_write; int do_server = 0, do_client = 0; int max_frag = 5 * 1024; int err_in_client = 0; int err_in_server = 0; bufsiz = count > 40 * 1024 ? 40 * 1024 : count; if ((cbuf = OPENSSL_zalloc(bufsiz)) == NULL) goto err; if ((sbuf = OPENSSL_zalloc(bufsiz)) == NULL) goto err; c_to_s = BIO_new(BIO_s_mem()); s_to_c = BIO_new(BIO_s_mem()); if ((s_to_c == NULL) || (c_to_s == NULL)) { ERR_print_errors(bio_err); goto err; } c_bio = BIO_new(BIO_f_ssl()); s_bio = BIO_new(BIO_f_ssl()); if ((c_bio == NULL) || (s_bio == NULL)) { ERR_print_errors(bio_err); goto err; } SSL_set_connect_state(c_ssl); SSL_set_bio(c_ssl, s_to_c, c_to_s); SSL_set_max_send_fragment(c_ssl, max_frag); BIO_set_ssl(c_bio, c_ssl, BIO_NOCLOSE); /* * We've just given our ref to these BIOs to c_ssl. We need another one to * give to s_ssl */ if (!BIO_up_ref(c_to_s)) { /* c_to_s and s_to_c will get freed when we free c_ssl */ c_to_s = NULL; s_to_c = NULL; goto err; } if (!BIO_up_ref(s_to_c)) { /* s_to_c will get freed when we free c_ssl */ s_to_c = NULL; goto err; } SSL_set_accept_state(s_ssl); SSL_set_bio(s_ssl, c_to_s, s_to_c); /* We've used up all our refs to these now */ c_to_s = NULL; s_to_c = NULL; SSL_set_max_send_fragment(s_ssl, max_frag); BIO_set_ssl(s_bio, s_ssl, BIO_NOCLOSE); c_r = 0; s_r = 1; c_w = 1; s_w = 0; c_write = 1, s_write = 0; /* We can always do writes */ for (;;) { do_server = 0; do_client = 0; i = (int)BIO_pending(s_bio); if ((i && s_r) || s_w) do_server = 1; i = (int)BIO_pending(c_bio); if ((i && c_r) || c_w) do_client = 1; if (do_server && debug) { if (SSL_in_init(s_ssl)) printf("server waiting in SSL_accept - %s\n", SSL_state_string_long(s_ssl)); } if (do_client && debug) { if (SSL_in_init(c_ssl)) printf("client waiting in SSL_connect - %s\n", SSL_state_string_long(c_ssl)); } if (!do_client && !do_server) { fprintf(stdout, "ERROR IN STARTUP\n"); ERR_print_errors(bio_err); goto err; } if (do_client && !(done & C_DONE)) { if (c_write) { j = (cw_num > bufsiz) ? (int)bufsiz : (int)cw_num; i = BIO_write(c_bio, cbuf, j); if (i < 0) { c_r = 0; c_w = 0; if (BIO_should_retry(c_bio)) { if (BIO_should_read(c_bio)) c_r = 1; if (BIO_should_write(c_bio)) c_w = 1; } else { fprintf(stderr, "ERROR in CLIENT\n"); err_in_client = 1; ERR_print_errors(bio_err); goto err; } } else if (i == 0) { fprintf(stderr, "SSL CLIENT STARTUP FAILED\n"); goto err; } else { if (debug) printf("client wrote %d\n", i); /* ok */ s_r = 1; c_write = 0; cw_num -= i; if (max_frag > 1029) SSL_set_max_send_fragment(c_ssl, max_frag -= 5); } } else { i = BIO_read(c_bio, cbuf, bufsiz); if (i < 0) { c_r = 0; c_w = 0; if (BIO_should_retry(c_bio)) { if (BIO_should_read(c_bio)) c_r = 1; if (BIO_should_write(c_bio)) c_w = 1; } else { fprintf(stderr, "ERROR in CLIENT\n"); err_in_client = 1; ERR_print_errors(bio_err); goto err; } } else if (i == 0) { fprintf(stderr, "SSL CLIENT STARTUP FAILED\n"); goto err; } else { if (debug) printf("client read %d\n", i); cr_num -= i; if (sw_num > 0) { s_write = 1; s_w = 1; } if (cr_num <= 0) { s_write = 1; s_w = 1; done = S_DONE | C_DONE; } } } } if (do_server && !(done & S_DONE)) { if (!s_write) { i = BIO_read(s_bio, sbuf, bufsiz); if (i < 0) { s_r = 0; s_w = 0; if (BIO_should_retry(s_bio)) { if (BIO_should_read(s_bio)) s_r = 1; if (BIO_should_write(s_bio)) s_w = 1; } else { fprintf(stderr, "ERROR in SERVER\n"); err_in_server = 1; ERR_print_errors(bio_err); goto err; } } else if (i == 0) { ERR_print_errors(bio_err); fprintf(stderr, "SSL SERVER STARTUP FAILED in SSL_read\n"); goto err; } else { if (debug) printf("server read %d\n", i); sr_num -= i; if (cw_num > 0) { c_write = 1; c_w = 1; } if (sr_num <= 0) { s_write = 1; s_w = 1; c_write = 0; } } } else { j = (sw_num > bufsiz) ? (int)bufsiz : (int)sw_num; i = BIO_write(s_bio, sbuf, j); if (i < 0) { s_r = 0; s_w = 0; if (BIO_should_retry(s_bio)) { if (BIO_should_read(s_bio)) s_r = 1; if (BIO_should_write(s_bio)) s_w = 1; } else { fprintf(stderr, "ERROR in SERVER\n"); err_in_server = 1; ERR_print_errors(bio_err); goto err; } } else if (i == 0) { ERR_print_errors(bio_err); fprintf(stderr, "SSL SERVER STARTUP FAILED in SSL_write\n"); goto err; } else { if (debug) printf("server wrote %d\n", i); sw_num -= i; s_write = 0; c_r = 1; if (sw_num <= 0) done |= S_DONE; if (max_frag > 1029) SSL_set_max_send_fragment(s_ssl, max_frag -= 5); } } } if ((done & S_DONE) && (done & C_DONE)) break; } if (verbose) print_details(c_ssl, "DONE: "); #ifndef OPENSSL_NO_NEXTPROTONEG if (verify_npn(c_ssl, s_ssl) < 0) goto err; #endif if (verify_serverinfo() < 0) { fprintf(stderr, "Server info verify error\n"); goto err; } if (custom_ext_error) { fprintf(stderr, "Custom extension error\n"); goto err; } ret = EXIT_SUCCESS; err: BIO_free(c_to_s); BIO_free(s_to_c); BIO_free_all(c_bio); BIO_free_all(s_bio); OPENSSL_free(cbuf); OPENSSL_free(sbuf); if (should_negotiate != NULL && strcmp(should_negotiate, "fail-client") == 0) ret = (err_in_client != 0) ? EXIT_SUCCESS : EXIT_FAILURE; else if (should_negotiate != NULL && strcmp(should_negotiate, "fail-server") == 0) ret = (err_in_server != 0) ? EXIT_SUCCESS : EXIT_FAILURE; return ret; } static int verify_callback(int ok, X509_STORE_CTX *ctx) { char *s, buf[256]; s = X509_NAME_oneline(X509_get_subject_name(X509_STORE_CTX_get_current_cert(ctx)), buf, sizeof(buf)); if (s != NULL) { if (ok) printf("depth=%d %s\n", X509_STORE_CTX_get_error_depth(ctx), buf); else { fprintf(stderr, "depth=%d error=%d %s\n", X509_STORE_CTX_get_error_depth(ctx), X509_STORE_CTX_get_error(ctx), buf); } } if (ok == 0) { int i = X509_STORE_CTX_get_error(ctx); switch (i) { default: fprintf(stderr, "Error string: %s\n", X509_verify_cert_error_string(i)); break; case X509_V_ERR_CERT_NOT_YET_VALID: case X509_V_ERR_CERT_HAS_EXPIRED: case X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT: ok = 1; break; } } return ok; } static int app_verify_callback(X509_STORE_CTX *ctx, void *arg) { int ok = 1; struct app_verify_arg *cb_arg = arg; if (cb_arg->app_verify) { char *s = NULL, buf[256]; X509 *c = X509_STORE_CTX_get0_cert(ctx); printf("In app_verify_callback, allowing cert. "); printf("Arg is: %s\n", cb_arg->string); printf("Finished printing do we have a context? 0x%p a cert? 0x%p\n", (void *)ctx, (void *)c); if (c) s = X509_NAME_oneline(X509_get_subject_name(c), buf, 256); if (s != NULL) { printf("cert depth=%d %s\n", X509_STORE_CTX_get_error_depth(ctx), buf); } return 1; } ok = X509_verify_cert(ctx); return ok; } #ifndef OPENSSL_NO_DH /*- * These DH parameters have been generated as follows: * $ openssl dhparam -C -noout 512 * $ openssl dhparam -C -noout 1024 * $ openssl dhparam -C -noout -dsaparam 1024 * (The third function has been renamed to avoid name conflicts.) */ static DH *get_dh512(void) { static unsigned char dh512_p[] = { 0xCB, 0xC8, 0xE1, 0x86, 0xD0, 0x1F, 0x94, 0x17, 0xA6, 0x99, 0xF0, 0xC6, 0x1F, 0x0D, 0xAC, 0xB6, 0x25, 0x3E, 0x06, 0x39, 0xCA, 0x72, 0x04, 0xB0, 0x6E, 0xDA, 0xC0, 0x61, 0xE6, 0x7A, 0x77, 0x25, 0xE8, 0x3B, 0xB9, 0x5F, 0x9A, 0xB6, 0xB5, 0xFE, 0x99, 0x0B, 0xA1, 0x93, 0x4E, 0x35, 0x33, 0xB8, 0xE1, 0xF1, 0x13, 0x4F, 0x59, 0x1A, 0xD2, 0x57, 0xC0, 0x26, 0x21, 0x33, 0x02, 0xC5, 0xAE, 0x23, }; static unsigned char dh512_g[] = { 0x02, }; DH *dh; BIGNUM *p, *g; if ((dh = DH_new()) == NULL) return NULL; p = BN_bin2bn(dh512_p, sizeof(dh512_p), NULL); g = BN_bin2bn(dh512_g, sizeof(dh512_g), NULL); if ((p == NULL) || (g == NULL) || !DH_set0_pqg(dh, p, NULL, g)) { DH_free(dh); BN_free(p); BN_free(g); return NULL; } return dh; } static DH *get_dh1024(void) { static unsigned char dh1024_p[] = { 0xF8, 0x81, 0x89, 0x7D, 0x14, 0x24, 0xC5, 0xD1, 0xE6, 0xF7, 0xBF, 0x3A, 0xE4, 0x90, 0xF4, 0xFC, 0x73, 0xFB, 0x34, 0xB5, 0xFA, 0x4C, 0x56, 0xA2, 0xEA, 0xA7, 0xE9, 0xC0, 0xC0, 0xCE, 0x89, 0xE1, 0xFA, 0x63, 0x3F, 0xB0, 0x6B, 0x32, 0x66, 0xF1, 0xD1, 0x7B, 0xB0, 0x00, 0x8F, 0xCA, 0x87, 0xC2, 0xAE, 0x98, 0x89, 0x26, 0x17, 0xC2, 0x05, 0xD2, 0xEC, 0x08, 0xD0, 0x8C, 0xFF, 0x17, 0x52, 0x8C, 0xC5, 0x07, 0x93, 0x03, 0xB1, 0xF6, 0x2F, 0xB8, 0x1C, 0x52, 0x47, 0x27, 0x1B, 0xDB, 0xD1, 0x8D, 0x9D, 0x69, 0x1D, 0x52, 0x4B, 0x32, 0x81, 0xAA, 0x7F, 0x00, 0xC8, 0xDC, 0xE6, 0xD9, 0xCC, 0xC1, 0x11, 0x2D, 0x37, 0x34, 0x6C, 0xEA, 0x02, 0x97, 0x4B, 0x0E, 0xBB, 0xB1, 0x71, 0x33, 0x09, 0x15, 0xFD, 0xDD, 0x23, 0x87, 0x07, 0x5E, 0x89, 0xAB, 0x6B, 0x7C, 0x5F, 0xEC, 0xA6, 0x24, 0xDC, 0x53, }; static unsigned char dh1024_g[] = { 0x02, }; DH *dh; BIGNUM *p, *g; if ((dh = DH_new()) == NULL) return NULL; p = BN_bin2bn(dh1024_p, sizeof(dh1024_p), NULL); g = BN_bin2bn(dh1024_g, sizeof(dh1024_g), NULL); if ((p == NULL) || (g == NULL) || !DH_set0_pqg(dh, p, NULL, g)) { DH_free(dh); BN_free(p); BN_free(g); return NULL; } return dh; } static DH *get_dh1024dsa(void) { static unsigned char dh1024_p[] = { 0xC8, 0x00, 0xF7, 0x08, 0x07, 0x89, 0x4D, 0x90, 0x53, 0xF3, 0xD5, 0x00, 0x21, 0x1B, 0xF7, 0x31, 0xA6, 0xA2, 0xDA, 0x23, 0x9A, 0xC7, 0x87, 0x19, 0x3B, 0x47, 0xB6, 0x8C, 0x04, 0x6F, 0xFF, 0xC6, 0x9B, 0xB8, 0x65, 0xD2, 0xC2, 0x5F, 0x31, 0x83, 0x4A, 0xA7, 0x5F, 0x2F, 0x88, 0x38, 0xB6, 0x55, 0xCF, 0xD9, 0x87, 0x6D, 0x6F, 0x9F, 0xDA, 0xAC, 0xA6, 0x48, 0xAF, 0xFC, 0x33, 0x84, 0x37, 0x5B, 0x82, 0x4A, 0x31, 0x5D, 0xE7, 0xBD, 0x52, 0x97, 0xA1, 0x77, 0xBF, 0x10, 0x9E, 0x37, 0xEA, 0x64, 0xFA, 0xCA, 0x28, 0x8D, 0x9D, 0x3B, 0xD2, 0x6E, 0x09, 0x5C, 0x68, 0xC7, 0x45, 0x90, 0xFD, 0xBB, 0x70, 0xC9, 0x3A, 0xBB, 0xDF, 0xD4, 0x21, 0x0F, 0xC4, 0x6A, 0x3C, 0xF6, 0x61, 0xCF, 0x3F, 0xD6, 0x13, 0xF1, 0x5F, 0xBC, 0xCF, 0xBC, 0x26, 0x9E, 0xBC, 0x0B, 0xBD, 0xAB, 0x5D, 0xC9, 0x54, 0x39, }; static unsigned char dh1024_g[] = { 0x3B, 0x40, 0x86, 0xE7, 0xF3, 0x6C, 0xDE, 0x67, 0x1C, 0xCC, 0x80, 0x05, 0x5A, 0xDF, 0xFE, 0xBD, 0x20, 0x27, 0x74, 0x6C, 0x24, 0xC9, 0x03, 0xF3, 0xE1, 0x8D, 0xC3, 0x7D, 0x98, 0x27, 0x40, 0x08, 0xB8, 0x8C, 0x6A, 0xE9, 0xBB, 0x1A, 0x3A, 0xD6, 0x86, 0x83, 0x5E, 0x72, 0x41, 0xCE, 0x85, 0x3C, 0xD2, 0xB3, 0xFC, 0x13, 0xCE, 0x37, 0x81, 0x9E, 0x4C, 0x1C, 0x7B, 0x65, 0xD3, 0xE6, 0xA6, 0x00, 0xF5, 0x5A, 0x95, 0x43, 0x5E, 0x81, 0xCF, 0x60, 0xA2, 0x23, 0xFC, 0x36, 0xA7, 0x5D, 0x7A, 0x4C, 0x06, 0x91, 0x6E, 0xF6, 0x57, 0xEE, 0x36, 0xCB, 0x06, 0xEA, 0xF5, 0x3D, 0x95, 0x49, 0xCB, 0xA7, 0xDD, 0x81, 0xDF, 0x80, 0x09, 0x4A, 0x97, 0x4D, 0xA8, 0x22, 0x72, 0xA1, 0x7F, 0xC4, 0x70, 0x56, 0x70, 0xE8, 0x20, 0x10, 0x18, 0x8F, 0x2E, 0x60, 0x07, 0xE7, 0x68, 0x1A, 0x82, 0x5D, 0x32, 0xA2, }; DH *dh; BIGNUM *p, *g; if ((dh = DH_new()) == NULL) return NULL; p = BN_bin2bn(dh1024_p, sizeof(dh1024_p), NULL); g = BN_bin2bn(dh1024_g, sizeof(dh1024_g), NULL); if ((p == NULL) || (g == NULL) || !DH_set0_pqg(dh, p, NULL, g)) { DH_free(dh); BN_free(p); BN_free(g); return NULL; } DH_set_length(dh, 160); return dh; } static DH *get_dh2048(void) { BIGNUM *p = NULL, *g = NULL; DH *dh = NULL; if ((dh = DH_new()) == NULL) return NULL; g = BN_new(); if (g == NULL || !BN_set_word(g, 2)) goto err; p = BN_get_rfc3526_prime_2048(NULL); if (p == NULL) goto err; if (!DH_set0_pqg(dh, p, NULL, g)) goto err; return dh; err: DH_free(dh); BN_free(p); BN_free(g); return NULL; } static DH *get_dh4096(void) { BIGNUM *p = NULL, *g = NULL; DH *dh = NULL; if ((dh = DH_new()) == NULL) return NULL; g = BN_new(); if (g == NULL || !BN_set_word(g, 2)) goto err; p = BN_get_rfc3526_prime_4096(NULL); if (p == NULL) goto err; if (!DH_set0_pqg(dh, p, NULL, g)) goto err; return dh; err: DH_free(dh); BN_free(p); BN_free(g); return NULL; } #endif #ifndef OPENSSL_NO_PSK /* convert the PSK key (psk_key) in ascii to binary (psk) */ static int psk_key2bn(const char *pskkey, unsigned char *psk, unsigned int max_psk_len) { int ret; BIGNUM *bn = NULL; ret = BN_hex2bn(&bn, pskkey); if (!ret) { BIO_printf(bio_err, "Could not convert PSK key '%s' to BIGNUM\n", pskkey); BN_free(bn); return 0; } if (BN_num_bytes(bn) > (int)max_psk_len) { BIO_printf(bio_err, "psk buffer of callback is too small (%d) for key (%d)\n", max_psk_len, BN_num_bytes(bn)); BN_free(bn); return 0; } ret = BN_bn2bin(bn, psk); BN_free(bn); return ret; } static unsigned int psk_client_callback(SSL *ssl, const char *hint, char *identity, unsigned int max_identity_len, unsigned char *psk, unsigned int max_psk_len) { int ret; unsigned int psk_len = 0; ret = BIO_snprintf(identity, max_identity_len, "Client_identity"); if (ret < 0) goto out_err; if (debug) fprintf(stderr, "client: created identity '%s' len=%d\n", identity, ret); ret = psk_key2bn(psk_key, psk, max_psk_len); if (ret < 0) goto out_err; psk_len = ret; out_err: return psk_len; } static unsigned int psk_server_callback(SSL *ssl, const char *identity, unsigned char *psk, unsigned int max_psk_len) { unsigned int psk_len = 0; if (strcmp(identity, "Client_identity") != 0) { BIO_printf(bio_err, "server: PSK error: client identity not found\n"); return 0; } psk_len = psk_key2bn(psk_key, psk, max_psk_len); return psk_len; } #endif