void doit (void) { /* Server stuff. */ gnutls_anon_server_credentials_t s_anoncred; const gnutls_datum_t p3 = { (char*) pkcs3, strlen (pkcs3) }; static gnutls_dh_params_t dh_params; gnutls_session_t server; int sret = GNUTLS_E_AGAIN; /* Client stuff. */ gnutls_anon_client_credentials_t c_anoncred; gnutls_session_t client; int n, cret = GNUTLS_E_AGAIN; /* Need to enable anonymous KX specifically. */ const int kx_prio[] = { GNUTLS_KX_ANON_DH, 0 }; char buffer[MAX_BUF + 1]; ssize_t ns; int ret; /* General init. */ gnutls_global_init (); gnutls_global_set_log_function (tls_log_func); if (debug) gnutls_global_set_log_level (4711); /* Init server */ gnutls_anon_allocate_server_credentials (&s_anoncred); gnutls_dh_params_init (&dh_params); gnutls_dh_params_import_pkcs3 (dh_params, &p3, GNUTLS_X509_FMT_PEM); gnutls_anon_set_server_dh_params (s_anoncred, dh_params); gnutls_init (&server, GNUTLS_SERVER); gnutls_set_default_priority (server); gnutls_kx_set_priority (server, kx_prio); gnutls_credentials_set (server, GNUTLS_CRD_ANON, s_anoncred); gnutls_dh_set_prime_bits (server, 1024); gnutls_transport_set_push_function (server, server_push); gnutls_transport_set_pull_function (server, server_pull); gnutls_session_set_finished_function (server, server_finished_callback); /* Init client */ gnutls_anon_allocate_client_credentials (&c_anoncred); gnutls_init (&client, GNUTLS_CLIENT); gnutls_set_default_priority (client); gnutls_kx_set_priority (client, kx_prio); gnutls_credentials_set (client, GNUTLS_CRD_ANON, c_anoncred); gnutls_transport_set_push_function (client, client_push); gnutls_transport_set_pull_function (client, client_pull); gnutls_session_set_finished_function (client, client_finished_callback); do { if (cret == GNUTLS_E_AGAIN) { success ("loop invoking client:\n"); cret = gnutls_handshake (client); success ("client %d: %s\n", cret, gnutls_strerror (cret)); } if (sret == GNUTLS_E_AGAIN) { success ("loop invoking server:\n"); sret = gnutls_handshake (server); success ("server %d: %s\n", sret, gnutls_strerror (sret)); } } while (cret == GNUTLS_E_AGAIN || sret == GNUTLS_E_AGAIN); success ("Handshake established\n"); ns = gnutls_record_send (client, MSG, strlen (MSG)); success ("client: sent %d\n", ns); ret = gnutls_record_recv (server, buffer, MAX_BUF); if (ret == 0) fail ("server: didn't receive any data\n"); else if (ret < 0) fail ("server: error: %s\n", gnutls_strerror (ret)); else { printf ("server: received %d: ", ret); for (n = 0; n < ret; n++) fputc (buffer[n], stdout); fputs ("\n", stdout); } ns = gnutls_record_send (server, MSG, strlen (MSG)); success ("server: sent %d\n", ns); ret = gnutls_record_recv (client, buffer, MAX_BUF); if (ret == 0) { fail ("client: Peer has closed the TLS connection\n"); } else if (ret < 0) { fail ("client: Error: %s\n", gnutls_strerror (ret)); } else { printf ("client: received %d: ", ret); for (n = 0; n < ret; n++) fputc (buffer[n], stdout); fputs ("\n", stdout); } gnutls_bye (client, GNUTLS_SHUT_RDWR); gnutls_bye (server, GNUTLS_SHUT_RDWR); gnutls_deinit (client); gnutls_deinit (server); free (to_server); free (to_client); gnutls_anon_free_client_credentials (c_anoncred); gnutls_anon_free_server_credentials (s_anoncred); gnutls_dh_params_deinit (dh_params); gnutls_global_deinit (); }
void doit(void) { /* Server stuff. */ gnutls_anon_server_credentials_t s_anoncred; const gnutls_datum_t p3 = { (unsigned char *) pkcs3, strlen(pkcs3) }; static gnutls_dh_params_t dh_params; gnutls_session_t server; int sret = GNUTLS_E_AGAIN; /* Client stuff. */ gnutls_anon_client_credentials_t c_anoncred; gnutls_session_t client; int cret = GNUTLS_E_AGAIN, i; /* Need to enable anonymous KX specifically. */ ssize_t ns; int ret, transferred = 0; /* General init. */ global_init(); gnutls_global_set_log_function(tls_log_func); if (debug) gnutls_global_set_log_level(4711); /* Init server */ gnutls_anon_allocate_server_credentials(&s_anoncred); gnutls_dh_params_init(&dh_params); gnutls_dh_params_import_pkcs3(dh_params, &p3, GNUTLS_X509_FMT_PEM); gnutls_anon_set_server_dh_params(s_anoncred, dh_params); gnutls_init(&server, GNUTLS_SERVER); gnutls_priority_set_direct(server, "NONE:+VERS-TLS-ALL:+ARCFOUR-128:+MAC-ALL:+SIGN-ALL:+COMP-NULL:+ANON-DH", NULL); gnutls_credentials_set(server, GNUTLS_CRD_ANON, s_anoncred); gnutls_transport_set_push_function(server, server_push); gnutls_transport_set_pull_function(server, server_pull); gnutls_transport_set_ptr(server, server); /* Init client */ gnutls_anon_allocate_client_credentials(&c_anoncred); gnutls_init(&client, GNUTLS_CLIENT); gnutls_priority_set_direct(client, "NONE:+VERS-TLS-ALL:+CIPHER-ALL:+ARCFOUR-128:+MAC-ALL:+SIGN-ALL:+COMP-NULL:+ANON-DH", NULL); gnutls_credentials_set(client, GNUTLS_CRD_ANON, c_anoncred); gnutls_transport_set_push_function(client, client_push); gnutls_transport_set_pull_function(client, client_pull); gnutls_transport_set_ptr(client, client); memset(b1, 0, sizeof(b1)); HANDSHAKE(client, server); if (debug) success("Handshake established\n"); memset(b1, 1, MAX_BUF); /* try the maximum allowed */ ret = gnutls_record_send(client, b1, MAX_BUF); if (ret < 0) { fprintf(stderr, "Error sending %d bytes: %s\n", (int) MAX_BUF, gnutls_strerror(ret)); exit(1); } if (ret != MAX_BUF) { fprintf(stderr, "Couldn't send %d bytes\n", (int) MAX_BUF); exit(1); } ret = gnutls_record_recv(server, buffer, MAX_BUF); if (ret < 0) { fprintf(stderr, "Error receiving %d bytes: %s\n", (int) MAX_BUF, gnutls_strerror(ret)); exit(1); } if (ret != MAX_BUF) { fprintf(stderr, "Couldn't receive %d bytes, received %d\n", (int) MAX_BUF, ret); exit(1); } if (memcmp(b1, buffer, MAX_BUF) != 0) { fprintf(stderr, "Buffers do not match!\n"); exit(1); } /* Try sending various other sizes */ for (i = 1; i < 128; i++) { TRANSFER(client, server, b1, i, buffer, MAX_BUF); } if (debug) fputs("\n", stdout); gnutls_bye(client, GNUTLS_SHUT_RDWR); gnutls_bye(server, GNUTLS_SHUT_RDWR); gnutls_deinit(client); gnutls_deinit(server); gnutls_anon_free_client_credentials(c_anoncred); gnutls_anon_free_server_credentials(s_anoncred); gnutls_dh_params_deinit(dh_params); gnutls_global_deinit(); }
static void server (int fd, const char* prio) { int ret; char buffer[MAX_BUF + 1]; gnutls_session_t session; gnutls_anon_server_credentials_t anoncred; gnutls_certificate_credentials_t x509_cred; gnutls_range_st range; to_send = 0; range.low = MAX_BUF; range.high = HIGH(MAX_BUF); /* this must be called once in the program */ global_init (); memset(buffer, 0, sizeof(buffer)); if (debug) { gnutls_global_set_log_function (server_log_func); gnutls_global_set_log_level (4711); } gnutls_certificate_allocate_credentials (&x509_cred); gnutls_certificate_set_x509_key_mem (x509_cred, &server_cert, &server_key, GNUTLS_X509_FMT_PEM); gnutls_anon_allocate_server_credentials (&anoncred); gnutls_init (&session, GNUTLS_SERVER); /* avoid calling all the priority functions, since the defaults * are adequate. */ gnutls_priority_set_direct (session, prio, NULL); gnutls_credentials_set (session, GNUTLS_CRD_ANON, anoncred); gnutls_credentials_set (session, GNUTLS_CRD_CERTIFICATE, x509_cred); gnutls_transport_set_ptr (session, (gnutls_transport_ptr_t) fd); do { ret = gnutls_handshake (session); } while (ret < 0 && gnutls_error_is_fatal(ret) == 0); if (ret < 0) { close (fd); gnutls_deinit (session); fail ("server: Handshake has failed (%s)\n\n", gnutls_strerror (ret)); terminate(); } if (debug) success ("server: Handshake was completed\n"); if (debug) success ("server: TLS version is: %s\n", gnutls_protocol_get_name (gnutls_protocol_get_version (session))); gnutls_transport_set_push_function (session, push); if (gnutls_record_can_use_length_hiding(session) == 0) { fail("Length hiding isn't possible\n"); terminate(); } do { do { ret = gnutls_record_send_range (session, buffer, sizeof (buffer), &range); } while (ret == GNUTLS_E_AGAIN || ret == GNUTLS_E_INTERRUPTED); if (ret < 0) { fail("Error sending packet: %s\n", gnutls_strerror(ret)); terminate(); } to_send++; } while(to_send < 4); to_send = -1; /* do not wait for the peer to close the connection. */ gnutls_bye (session, GNUTLS_SHUT_WR); close (fd); gnutls_deinit (session); gnutls_anon_free_server_credentials (anoncred); gnutls_certificate_free_credentials (x509_cred); gnutls_global_deinit (); if (debug) success ("server: finished\n"); }
void dtls_try_with_key_mtu(const char *name, const char *client_prio, gnutls_kx_algorithm_t client_kx, gnutls_sign_algorithm_t server_sign_algo, gnutls_sign_algorithm_t client_sign_algo, const gnutls_datum_t *serv_cert, const gnutls_datum_t *serv_key, const gnutls_datum_t *client_cert, const gnutls_datum_t *client_key, unsigned cert_flags, unsigned smtu) { int ret; char buffer[256]; /* Server stuff. */ gnutls_certificate_credentials_t serverx509cred; gnutls_anon_server_credentials_t s_anoncred; gnutls_dh_params_t dh_params; const gnutls_datum_t p3 = { (unsigned char *) pkcs3, strlen(pkcs3) }; gnutls_session_t server; int sret = GNUTLS_E_AGAIN; /* Client stuff. */ gnutls_certificate_credentials_t clientx509cred; gnutls_anon_client_credentials_t c_anoncred; gnutls_session_t client; int cret = GNUTLS_E_AGAIN, version; /* General init. */ gnutls_global_set_log_function(tls_log_func); if (debug) gnutls_global_set_log_level(6); reset_buffers(); /* Init server */ gnutls_anon_allocate_server_credentials(&s_anoncred); gnutls_certificate_allocate_credentials(&serverx509cred); ret = gnutls_certificate_set_x509_key_mem(serverx509cred, serv_cert, serv_key, GNUTLS_X509_FMT_PEM); if (ret < 0) { fail("Could not set key/cert: %s\n", gnutls_strerror(ret)); } gnutls_dh_params_init(&dh_params); gnutls_dh_params_import_pkcs3(dh_params, &p3, GNUTLS_X509_FMT_PEM); gnutls_certificate_set_dh_params(serverx509cred, dh_params); gnutls_anon_set_server_dh_params(s_anoncred, dh_params); assert(gnutls_init(&server, GNUTLS_SERVER|GNUTLS_DATAGRAM|GNUTLS_NONBLOCK)>=0); assert(gnutls_credentials_set(server, GNUTLS_CRD_CERTIFICATE, serverx509cred)>=0); assert(gnutls_credentials_set(server, GNUTLS_CRD_ANON, s_anoncred)>=0); assert(gnutls_priority_set_direct(server, "NORMAL:+ANON-ECDH:+ANON-DH:+ECDHE-RSA:+DHE-RSA:+RSA:+ECDHE-ECDSA:+CURVE-X25519", NULL)>=0); gnutls_transport_set_push_function(server, server_push); gnutls_transport_set_pull_function(server, server_pull); gnutls_transport_set_pull_timeout_function(server, server_pull_timeout_func); gnutls_transport_set_ptr(server, server); if (smtu) gnutls_dtls_set_mtu (server, smtu); /* Init client */ ret = gnutls_certificate_allocate_credentials(&clientx509cred); if (ret < 0) exit(1); if (cert_flags == USE_CERT) { ret = gnutls_certificate_set_x509_key_mem(clientx509cred, client_cert, client_key, GNUTLS_X509_FMT_PEM); if (ret < 0) { fail("Could not set key/cert: %s\n", gnutls_strerror(ret)); } gnutls_certificate_server_set_request(server, GNUTLS_CERT_REQUIRE); } else if (cert_flags == ASK_CERT) { gnutls_certificate_server_set_request(server, GNUTLS_CERT_REQUEST); } #if 0 ret = gnutls_certificate_set_x509_trust_mem(clientx509cred, &ca_cert, GNUTLS_X509_FMT_PEM); if (ret < 0) exit(1); #endif ret = gnutls_init(&client, GNUTLS_CLIENT|GNUTLS_DATAGRAM|GNUTLS_NONBLOCK); if (ret < 0) exit(1); assert(gnutls_anon_allocate_client_credentials(&c_anoncred)>=0); assert(gnutls_credentials_set(client, GNUTLS_CRD_ANON, c_anoncred)>=0); ret = gnutls_credentials_set(client, GNUTLS_CRD_CERTIFICATE, clientx509cred); if (ret < 0) exit(1); gnutls_transport_set_push_function(client, client_push); gnutls_transport_set_pull_function(client, client_pull); gnutls_transport_set_pull_timeout_function(client, client_pull_timeout_func); gnutls_transport_set_ptr(client, client); if (smtu) gnutls_dtls_set_mtu (client, smtu); ret = gnutls_priority_set_direct(client, client_prio, NULL); if (ret < 0) { exit(1); } success("negotiating %s\n", name); HANDSHAKE_DTLS(client, server); if (gnutls_kx_get(client) != client_kx) { fail("%s: got unexpected key exchange algorithm: %s (expected %s)\n", name, gnutls_kx_get_name(gnutls_kx_get(client)), gnutls_kx_get_name(client_kx)); exit(1); } /* test signature algorithm match */ version = gnutls_protocol_get_version(client); if (version >= GNUTLS_DTLS1_2) { ret = gnutls_sign_algorithm_get(server); if (ret != (int)server_sign_algo) { fail("%s: got unexpected server signature algorithm: %d/%s\n", name, ret, gnutls_sign_get_name(ret)); exit(1); } ret = gnutls_sign_algorithm_get_client(server); if (ret != (int)client_sign_algo) { fail("%s: got unexpected client signature algorithm: %d/%s\n", name, ret, gnutls_sign_get_name(ret)); exit(1); } ret = gnutls_sign_algorithm_get(client); if (ret != (int)server_sign_algo) { fail("%s: cl: got unexpected server signature algorithm: %d/%s\n", name, ret, gnutls_sign_get_name(ret)); exit(1); } ret = gnutls_sign_algorithm_get_client(client); if (ret != (int)client_sign_algo) { fail("%s: cl: got unexpected client signature algorithm: %d/%s\n", name, ret, gnutls_sign_get_name(ret)); exit(1); } } gnutls_record_send(server, MSG, strlen(MSG)); ret = gnutls_record_recv(client, buffer, sizeof(buffer)); if (ret == 0) { fail("client: Peer has closed the TLS connection\n"); exit(1); } else if (ret < 0) { fail("client: Error: %s\n", gnutls_strerror(ret)); exit(1); } if (ret != strlen(MSG) || memcmp(MSG, buffer, ret) != 0) { fail("client: Error in data received. Expected %d, got %d\n", (int)strlen(MSG), ret); exit(1); } gnutls_bye(client, GNUTLS_SHUT_RDWR); gnutls_bye(server, GNUTLS_SHUT_RDWR); gnutls_deinit(client); gnutls_deinit(server); gnutls_certificate_free_credentials(serverx509cred); gnutls_certificate_free_credentials(clientx509cred); gnutls_anon_free_server_credentials(s_anoncred); gnutls_anon_free_client_credentials(c_anoncred); gnutls_dh_params_deinit(dh_params); }
void doit (void) { /* Server stuff. */ gnutls_anon_server_credentials_t s_anoncred; const gnutls_datum_t p3 = { (char *) pkcs3, strlen (pkcs3) }; static gnutls_dh_params_t dh_params; gnutls_session_t server; int sret, cret; /* Client stuff. */ gnutls_anon_client_credentials_t c_anoncred; gnutls_session_t client; /* Need to enable anonymous KX specifically. */ char buffer[MAX_BUF + 1]; ssize_t ns; int ret, transferred = 0, msglen; /* General init. */ gnutls_global_init (); gnutls_global_set_log_function (tls_log_func); if (debug) gnutls_global_set_log_level (99); /* Init server */ gnutls_anon_allocate_server_credentials (&s_anoncred); gnutls_dh_params_init (&dh_params); gnutls_dh_params_import_pkcs3 (dh_params, &p3, GNUTLS_X509_FMT_PEM); gnutls_anon_set_server_dh_params (s_anoncred, dh_params); gnutls_init (&server, GNUTLS_SERVER|GNUTLS_DATAGRAM|GNUTLS_NONBLOCK); ret = gnutls_priority_set_direct (server, "NONE:+VERS-DTLS1.0:+CIPHER-ALL:+MAC-ALL:+SIGN-ALL:+COMP-ALL:+ANON-DH", NULL); if (ret < 0) exit(1); gnutls_credentials_set (server, GNUTLS_CRD_ANON, s_anoncred); gnutls_dh_set_prime_bits (server, 1024); gnutls_transport_set_push_function (server, server_push); gnutls_transport_set_pull_function (server, server_pull); gnutls_transport_set_pull_timeout_function (server, server_pull_timeout_func); gnutls_transport_set_ptr (server, (gnutls_transport_ptr_t)server); /* Init client */ gnutls_anon_allocate_client_credentials (&c_anoncred); gnutls_init (&client, GNUTLS_CLIENT|GNUTLS_DATAGRAM|GNUTLS_NONBLOCK); cret = gnutls_priority_set_direct (client, "NONE:+VERS-DTLS1.0:+CIPHER-ALL:+MAC-ALL:+SIGN-ALL:+COMP-ALL:+ANON-DH", NULL); if (cret < 0) exit(1); gnutls_credentials_set (client, GNUTLS_CRD_ANON, c_anoncred); gnutls_transport_set_push_function (client, client_push); gnutls_transport_set_pull_function (client, client_pull); gnutls_transport_set_pull_timeout_function (client, client_pull_timeout_func); gnutls_transport_set_ptr (client, (gnutls_transport_ptr_t)client); handshake = 1; HANDSHAKE(client, server); handshake = 0; if (debug) success ("Handshake established\n"); do { ret = gnutls_record_send (client, MSG, strlen (MSG)); } while(ret == GNUTLS_E_AGAIN); //success ("client: sent %d\n", ns); msglen = strlen(MSG); TRANSFER(client, server, MSG, msglen, buffer, MAX_BUF); if (debug) fputs ("\n", stdout); gnutls_bye (client, GNUTLS_SHUT_WR); gnutls_bye (server, GNUTLS_SHUT_WR); gnutls_deinit (client); gnutls_deinit (server); gnutls_anon_free_client_credentials (c_anoncred); gnutls_anon_free_server_credentials (s_anoncred); gnutls_dh_params_deinit (dh_params); gnutls_global_deinit (); }
static void server (void) { /* this must be called once in the program */ gnutls_global_init (); gnutls_global_set_log_function (tls_log_func); if (debug) gnutls_global_set_log_level (4711); gnutls_anon_allocate_server_credentials (&anoncred); if (debug) success ("Launched, generating DH parameters...\n"); generate_dh_params (); gnutls_anon_set_server_dh_params (anoncred, dh_params); client_len = sizeof (sa_cli); session = initialize_tls_session (); sd = accept (listen_sd, (SA *) & sa_cli, &client_len); if (debug) success ("server: connection from %s, port %d\n", inet_ntop (AF_INET, &sa_cli.sin_addr, topbuf, sizeof (topbuf)), ntohs (sa_cli.sin_port)); gnutls_transport_set_ptr (session, (gnutls_transport_ptr_t) sd); ret = gnutls_handshake (session); if (ret < 0) { close (sd); gnutls_deinit (session); fail ("server: Handshake has failed (%s)\n\n", gnutls_strerror (ret)); return; } if (debug) success ("server: Handshake was completed\n"); if (debug) success ("server: TLS version is: %s\n", gnutls_protocol_get_name (gnutls_protocol_get_version (session))); /* see the Getting peer's information example */ /* print_info(session); */ i = 0; for (;;) { memset (buffer, 0, MAX_BUF + 1); ret = gnutls_record_recv (session, buffer, MAX_BUF); if (ret == 0) { if (debug) success ("server: Peer has closed the GnuTLS connection\n"); break; } else if (ret < 0) { fail ("server: Received corrupted data(%d). Closing...\n", ret); break; } else if (ret > 0) { /* echo data back to the client */ gnutls_record_send (session, buffer, strlen (buffer)); } } /* do not wait for the peer to close the connection. */ gnutls_bye (session, GNUTLS_SHUT_WR); close (sd); gnutls_deinit (session); close (listen_sd); gnutls_anon_free_server_credentials (anoncred); gnutls_dh_params_deinit (dh_params); gnutls_global_deinit (); if (debug) success ("server: finished\n"); }
void try_with_key_ks(const char *name, const char *client_prio, gnutls_kx_algorithm_t client_kx, gnutls_sign_algorithm_t server_sign_algo, gnutls_sign_algorithm_t client_sign_algo, const gnutls_datum_t *serv_cert, const gnutls_datum_t *serv_key, const gnutls_datum_t *client_cert, const gnutls_datum_t *client_key, unsigned cert_flags, unsigned exp_group, gnutls_certificate_type_t server_ctype, gnutls_certificate_type_t client_ctype) { int ret; char buffer[256]; /* Server stuff. */ gnutls_certificate_credentials_t server_cred; gnutls_anon_server_credentials_t s_anoncred; gnutls_dh_params_t dh_params; const gnutls_datum_t p3 = { (unsigned char *) pkcs3, strlen(pkcs3) }; gnutls_session_t server; int sret = GNUTLS_E_AGAIN; /* Client stuff. */ gnutls_certificate_credentials_t client_cred; gnutls_anon_client_credentials_t c_anoncred; gnutls_session_t client; int cret = GNUTLS_E_AGAIN, version; const char *err; /* General init. */ gnutls_global_set_log_function(tls_log_func); if (debug) gnutls_global_set_log_level(6); reset_buffers(); /* Init server */ assert(gnutls_anon_allocate_server_credentials(&s_anoncred)>=0); assert(gnutls_certificate_allocate_credentials(&server_cred)>=0); // Set server crt creds based on ctype switch (server_ctype) { case GNUTLS_CRT_X509: ret = gnutls_certificate_set_x509_key_mem(server_cred, serv_cert, serv_key, GNUTLS_X509_FMT_PEM); break; case GNUTLS_CRT_RAWPK: ret = gnutls_certificate_set_rawpk_key_mem(server_cred, serv_cert, serv_key, GNUTLS_X509_FMT_PEM, NULL, 0, NULL, 0, 0); break; default: ret = GNUTLS_E_UNSUPPORTED_CERTIFICATE_TYPE; } if (ret < 0) { fail("Could not set key/cert: %s\n", gnutls_strerror(ret)); } gnutls_dh_params_init(&dh_params); gnutls_dh_params_import_pkcs3(dh_params, &p3, GNUTLS_X509_FMT_PEM); gnutls_certificate_set_dh_params(server_cred, dh_params); gnutls_anon_set_server_dh_params(s_anoncred, dh_params); assert(gnutls_init(&server, GNUTLS_SERVER | GNUTLS_ENABLE_RAWPK)>=0); assert(gnutls_credentials_set(server, GNUTLS_CRD_CERTIFICATE, server_cred)>=0); assert(gnutls_credentials_set(server, GNUTLS_CRD_ANON, s_anoncred)>=0); if (server_priority) assert(gnutls_priority_set_direct(server, server_priority, NULL) >= 0); else assert(gnutls_priority_set_direct(server, "NORMAL:+VERS-SSL3.0:+ANON-ECDH:+ANON-DH:+ECDHE-RSA:+DHE-RSA:+RSA:+ECDHE-ECDSA:+CURVE-X25519:+SIGN-EDDSA-ED25519:+CTYPE-ALL", NULL)>=0); gnutls_transport_set_push_function(server, server_push); gnutls_transport_set_pull_function(server, server_pull); gnutls_transport_set_ptr(server, server); /* Init client */ ret = gnutls_certificate_allocate_credentials(&client_cred); if (ret < 0) exit(1); if (cert_flags == USE_CERT) { // Set client crt creds based on ctype switch (client_ctype) { case GNUTLS_CRT_X509: gnutls_certificate_set_x509_key_mem(client_cred, client_cert, client_key, GNUTLS_X509_FMT_PEM); break; case GNUTLS_CRT_RAWPK: gnutls_certificate_set_rawpk_key_mem(client_cred, client_cert, client_key, GNUTLS_X509_FMT_PEM, NULL, 0, NULL, 0, 0); break; default: fail("Illegal client certificate type given\n"); } gnutls_certificate_server_set_request(server, GNUTLS_CERT_REQUIRE); } else if (cert_flags == ASK_CERT) { gnutls_certificate_server_set_request(server, GNUTLS_CERT_REQUEST); } #if 0 ret = gnutls_certificate_set_x509_trust_mem(client_cred, &ca_cert, GNUTLS_X509_FMT_PEM); if (ret < 0) exit(1); #endif ret = gnutls_init(&client, GNUTLS_CLIENT | GNUTLS_ENABLE_RAWPK); if (ret < 0) exit(1); assert(gnutls_anon_allocate_client_credentials(&c_anoncred)>=0); assert(gnutls_credentials_set(client, GNUTLS_CRD_ANON, c_anoncred)>=0); ret = gnutls_credentials_set(client, GNUTLS_CRD_CERTIFICATE, client_cred); if (ret < 0) exit(1); gnutls_transport_set_push_function(client, client_push); gnutls_transport_set_pull_function(client, client_pull); gnutls_transport_set_ptr(client, client); ret = gnutls_priority_set_direct(client, client_prio, &err); if (ret < 0) { if (ret == GNUTLS_E_INVALID_REQUEST) fprintf(stderr, "Error in %s\n", err); exit(1); } success("negotiating %s\n", name); HANDSHAKE(client, server); if (gnutls_kx_get(client) != client_kx) { fail("%s: got unexpected key exchange algorithm: %s (expected %s)\n", name, gnutls_kx_get_name(gnutls_kx_get(client)), gnutls_kx_get_name(client_kx)); exit(1); } /* test signature algorithm match */ version = gnutls_protocol_get_version(client); if (version >= GNUTLS_TLS1_2) { ret = gnutls_sign_algorithm_get(server); if (ret != (int)server_sign_algo) { fail("%s: got unexpected server signature algorithm: %d/%s\n", name, ret, gnutls_sign_get_name(ret)); exit(1); } ret = gnutls_sign_algorithm_get_client(server); if (ret != (int)client_sign_algo) { fail("%s: got unexpected client signature algorithm: %d/%s\n", name, ret, gnutls_sign_get_name(ret)); exit(1); } ret = gnutls_sign_algorithm_get(client); if (ret != (int)server_sign_algo) { fail("%s: cl: got unexpected server signature algorithm: %d/%s\n", name, ret, gnutls_sign_get_name(ret)); exit(1); } ret = gnutls_sign_algorithm_get_client(client); if (ret != (int)client_sign_algo) { fail("%s: cl: got unexpected client signature algorithm: %d/%s\n", name, ret, gnutls_sign_get_name(ret)); exit(1); } } if (exp_group != 0) { ret = gnutls_group_get(server); if (ret != (int)exp_group) { fail("%s: got unexpected server group: %d/%s\n", name, ret, gnutls_group_get_name(ret)); } ret = gnutls_group_get(client); if (ret != (int)exp_group) { fail("%s: got unexpected client group: %d/%s\n", name, ret, gnutls_group_get_name(ret)); } } gnutls_record_send(server, MSG, strlen(MSG)); ret = gnutls_record_recv(client, buffer, sizeof(buffer)); if (ret == 0) { fail("client: Peer has closed the TLS connection\n"); exit(1); } else if (ret < 0) { fail("client: Error: %s\n", gnutls_strerror(ret)); exit(1); } if (ret != strlen(MSG) || memcmp(MSG, buffer, ret) != 0) { fail("client: Error in data received. Expected %d, got %d\n", (int)strlen(MSG), ret); exit(1); } gnutls_bye(client, GNUTLS_SHUT_RDWR); gnutls_bye(server, GNUTLS_SHUT_RDWR); gnutls_deinit(client); gnutls_deinit(server); gnutls_certificate_free_credentials(server_cred); gnutls_certificate_free_credentials(client_cred); gnutls_anon_free_server_credentials(s_anoncred); gnutls_anon_free_client_credentials(c_anoncred); gnutls_dh_params_deinit(dh_params); }
anon_server_credentials::anon_server_credentials ():credentials (GNUTLS_CRD_ANON) { RETWRAP (gnutls_anon_allocate_server_credentials (&cred)); set_ptr (cred); }
int main (void) { fprintf(stderr, "sizeof(evcom_server): %d\n", (int)sizeof(evcom_server)); fprintf(stderr, "sizeof(evcom_stream): %d\n", (int)sizeof(evcom_stream)); fprintf(stderr, "sizeof(evcom_reader): %d\n", (int)sizeof(evcom_reader)); fprintf(stderr, "sizeof(evcom_writer): %d\n", (int)sizeof(evcom_writer)); evcom_ignore_sigpipe(); #if EVCOM_HAVE_GNUTLS gnutls_global_init(); gnutls_dh_params_init (&dh_params); fsync(fileno(stderr)); gnutls_dh_params_generate2 (dh_params, DH_BITS); gnutls_anon_allocate_server_credentials (&server_credentials); gnutls_anon_set_server_dh_params (server_credentials, dh_params); #endif struct sockaddr_in tcp_address; memset(&tcp_address, 0, sizeof(struct sockaddr_in)); tcp_address.sin_family = AF_INET; tcp_address.sin_port = htons(PORT); tcp_address.sin_addr.s_addr = INADDR_ANY; use_tls = 0; fprintf(stderr, "pair_pingpong use_pipe=1: "); assert(pair_pingpong(1) == 0); fprintf(stderr, "\n"); fprintf(stderr, "pair_pingpong use_pipe=0: "); assert(pair_pingpong(0) == 0); fprintf(stderr, "\n"); fprintf(stderr, "zero_stream tcp: "); assert(zero_stream((struct sockaddr*)&tcp_address, 5*1024*1024) == 0); fprintf(stderr, "\n"); fprintf(stderr, "pipe_stream: "); assert(pipe_stream() == 0); fprintf(stderr, "\n"); fprintf(stderr, "pingpong tcp: "); assert(pingpong((struct sockaddr*)&tcp_address) == 0); fprintf(stderr, "\n"); fprintf(stderr, "connint tcp: "); assert(connint((struct sockaddr*)&tcp_address) == 0); fprintf(stderr, "\n"); #if EVCOM_HAVE_GNUTLS use_tls = 1; fprintf(stderr, "zero_stream ssl: "); assert(zero_stream((struct sockaddr*)&tcp_address, 50*1024) == 0); fprintf(stderr, "\n"); fprintf(stderr, "pair_pingpong ssl use_pipe=1: "); assert(pair_pingpong(1) == 0); fprintf(stderr, "\n"); fprintf(stderr, "pair_pingpong ssl use_pipe=0: "); assert(pair_pingpong(0) == 0); fprintf(stderr, "\n"); fprintf(stderr, "pingpong ssl: "); assert(pingpong((struct sockaddr*)&tcp_address) == 0); fprintf(stderr, "\n"); fprintf(stderr, "connint ssl: "); assert(connint((struct sockaddr*)&tcp_address) == 0); fprintf(stderr, "\n"); #endif struct sockaddr *unix_address; use_tls = 0; fprintf(stderr, "pingpong unix: "); unix_address = create_unix_address(); assert(pingpong(unix_address) == 0); free_unix_address(unix_address); fprintf(stderr, "\n"); fprintf(stderr, "connint unix: "); unix_address = create_unix_address(); assert(connint(unix_address) == 0); free_unix_address(unix_address); fprintf(stderr, "\n"); #if EVCOM_HAVE_GNUTLS use_tls = 1; fprintf(stderr, "pingpong unix ssl: "); unix_address = create_unix_address(); assert(pingpong(unix_address) == 0); free_unix_address(unix_address); fprintf(stderr, "\n"); fprintf(stderr, "connint unix ssl: "); unix_address = create_unix_address(); assert(connint(unix_address) == 0); free_unix_address(unix_address); fprintf(stderr, "\n"); #endif return 0; }
static void server (struct params_res *params) { size_t t; /* this must be called once in the program, it is mostly for the server. */ if (debug) { gnutls_global_set_log_function (tls_log_func); gnutls_global_set_log_level (2); } gnutls_global_init (); gnutls_anon_allocate_server_credentials (&anoncred); if (debug) success ("Launched, generating DH parameters...\n"); generate_dh_params (); gnutls_anon_set_server_dh_params (anoncred, dh_params); if (params->enable_db) { wrap_db_init (); } #ifdef ENABLE_SESSION_TICKET if (params->enable_session_ticket_server) gnutls_session_ticket_key_generate (&session_ticket_key); #endif for (t = 0; t < 2; t++) { client_len = sizeof (sa_cli); session = initialize_tls_session (params); sd = accept (listen_sd, (SA *) & sa_cli, &client_len); if (debug) success ("server: connection from %s, port %d\n", inet_ntop (AF_INET, &sa_cli.sin_addr, topbuf, sizeof (topbuf)), ntohs (sa_cli.sin_port)); gnutls_transport_set_ptr (session, (gnutls_transport_ptr_t) sd); ret = gnutls_handshake (session); if (ret < 0) { close (sd); gnutls_deinit (session); fail ("server: Handshake has failed (%s)\n\n", gnutls_strerror (ret)); return; } if (debug) success ("server: Handshake was completed\n"); /* see the Getting peer's information example */ /* print_info(session); */ i = 0; for (;;) { memset (buffer, 0, MAX_BUF + 1); ret = gnutls_record_recv (session, buffer, MAX_BUF); if (ret == 0) { if (debug) success ("server: Peer has closed the GnuTLS connection\n"); break; } else if (ret < 0) { fail ("server: Received corrupted data(%d). Closing...\n", ret); break; } else if (ret > 0) { /* echo data back to the client */ gnutls_record_send (session, buffer, strlen (buffer)); } } /* do not wait for the peer to close the connection. */ gnutls_bye (session, GNUTLS_SHUT_WR); close (sd); gnutls_deinit (session); } close (listen_sd); if (params->enable_db) { wrap_db_deinit (); } gnutls_free (session_ticket_key.data); session_ticket_key.data = NULL; if (debug) success ("server: finished\n"); }
static void server(int fd) { int ret, csend = 0; gnutls_anon_server_credentials_t anoncred; char buffer[MAX_BUF + 1]; gnutls_datum_t cookie_key; gnutls_dtls_prestate_st prestate; gnutls_session_t session; unsigned try = 0; /* this must be called once in the program */ global_init(); if (debug) { gnutls_global_set_log_function(server_log_func); gnutls_global_set_log_level(4711); } ret = gnutls_key_generate(&cookie_key, GNUTLS_COOKIE_KEY_SIZE); if (ret < 0) { fail("Cannot generate key: %s\n", gnutls_strerror(ret)); exit(1); } gnutls_anon_allocate_server_credentials(&anoncred); gnutls_init(&session, GNUTLS_SERVER | GNUTLS_DATAGRAM); gnutls_handshake_set_timeout(session, SERV_TIMEOUT * 1000); gnutls_dtls_set_mtu(session, 1500); /* avoid calling all the priority functions, since the defaults * are adequate. */ gnutls_priority_set_direct(session, "NONE:+VERS-DTLS1.0:+CIPHER-ALL:+MAC-ALL:+SIGN-ALL:+COMP-ALL:+ANON-ECDH:+CURVE-ALL", NULL); gnutls_credentials_set(session, GNUTLS_CRD_ANON, anoncred); gnutls_transport_set_int(session, fd); gnutls_transport_set_push_function(session, push); for (;;) { ret = recv_timeout(fd, buffer, sizeof(buffer), MSG_PEEK, SERV_TIMEOUT); if (ret < 0) { if (try != 0) { success("Server was terminated as expected!\n"); goto exit; } else { fail("Error receiving first message\n"); exit(1); } } try++; memset(&prestate, 0, sizeof(prestate)); prestate.record_seq = 105791312; prestate.hsk_write_seq = 67166359; ret = gnutls_dtls_cookie_verify(&cookie_key, CLI_ADDR, CLI_ADDR_LEN, buffer, ret, &prestate); if (ret < 0) { /* cookie not valid */ if (debug) success("Sending hello verify request\n"); ret = gnutls_dtls_cookie_send(&cookie_key, CLI_ADDR, CLI_ADDR_LEN, &prestate, (gnutls_transport_ptr_t) (long) fd, push); if (ret < 0) { fail("Cannot send data\n"); exit(1); } /* discard peeked data */ recv_timeout(fd, buffer, sizeof(buffer), 0, SERV_TIMEOUT); csend++; if (csend > 2) { fail("too many cookies sent\n"); exit(1); } continue; } /* success */ break; } fail("Shouldn't have reached here\n"); exit(1); exit: gnutls_deinit(session); gnutls_free(cookie_key.data); gnutls_anon_free_server_credentials(anoncred); gnutls_global_deinit(); }
const struct remote_security_filter *load_security_filter(int tType, const char **dData, load_reference lLoad) { if (initialized) return NULL; #ifdef HAVE_GCRYPT_H if (!gcry_control(GCRYCTL_ANY_INITIALIZATION_P)) { gcry_control(GCRYCTL_SET_THREAD_CBS, &gcry_threads_pthread); gcry_check_version(NULL); //no need to check as of now gcry_control(GCRYCTL_DISABLE_SECMEM, 0); gcry_control(GCRYCTL_INITIALIZATION_FINISHED, 0); } #endif gnutls_global_set_log_function(&gnutls_logging); gnutls_global_set_log_level(PARAM_RSVX_TLS_LOGGING); gnutls_global_init(); forwarder_type = tType; const char **initializers = dData, **current = initializers; int argument_count = 0; if (current) while (*current++) argument_count++; if (argument_count > 0 && (current = initializers)) //srp initialization { use_srp_auth = true; const char *passwd = (*current)? *current++ : NULL; const char *srp_passwd = (*current)? *current++ : NULL; const char *srp_passwd_conf = (*current)? *current++ : NULL; if (passwd && strlen(passwd)) { srp_file = passwd; if (!parse_passwd()) { gnutls_global_deinit(); return NULL; } } gnutls_global_init_extra(); if (srp_passwd && strlen(srp_passwd) && srp_passwd_conf && strlen(srp_passwd_conf)) { gnutls_srp_allocate_server_credentials(&srp_server); gnutls_srp_set_server_credentials_file(srp_server, srp_passwd, srp_passwd_conf); } } else //anonymouns initialization { gnutls_anon_allocate_server_credentials(&credentials); gnutls_dh_params_init(&dh_params); gnutls_dh_params_generate2(dh_params, 1024); gnutls_anon_set_server_dh_params(credentials, dh_params); } return &internal_filter; }
static void server(int fd) { int ret; char buffer[MAX_BUF + 1]; gnutls_certificate_credentials_t serverx509cred; gnutls_anon_server_credentials_t anoncred; gnutls_session_t session; /* this must be called once in the program */ global_init(); if (debug) { gnutls_global_set_log_function(server_log_func); gnutls_global_set_log_level(4711); } assert(gnutls_anon_allocate_server_credentials(&anoncred) >= 0); assert(gnutls_certificate_allocate_credentials(&serverx509cred) >= 0); assert(gnutls_certificate_set_x509_key_mem(serverx509cred, &server_cert, &server_key, GNUTLS_X509_FMT_PEM) >= 0); gnutls_init(&session, GNUTLS_SERVER | GNUTLS_DATAGRAM); gnutls_dtls_set_mtu(session, MTU); /* avoid calling all the priority functions, since the defaults * are adequate. */ assert(gnutls_priority_set_direct(session, "NONE:+VERS-DTLS-ALL:+CIPHER-ALL:+MAC-ALL:+SIGN-ALL:+COMP-ALL:+ECDHE-RSA:+ANON-ECDH:+CURVE-ALL", NULL) >= 0); gnutls_credentials_set(session, GNUTLS_CRD_ANON, anoncred); gnutls_credentials_set(session, GNUTLS_CRD_CERTIFICATE, serverx509cred); gnutls_transport_set_int(session, fd); gnutls_transport_set_push_function(session, push); do { ret = gnutls_handshake(session); } while (ret < 0 && gnutls_error_is_fatal(ret) == 0); if (ret < 0) { close(fd); gnutls_deinit(session); fail("server: Handshake has failed (%s)\n\n", gnutls_strerror(ret)); terminate(); } if (debug) success("server: Handshake was completed\n"); if (debug) success("server: TLS version is: %s\n", gnutls_protocol_get_name (gnutls_protocol_get_version(session))); if (gnutls_kx_get(session) != GNUTLS_KX_ANON_ECDH) { fail("did not negotiate an anonymous ciphersuite on initial auth\n"); } /* see the Getting peer's information example */ /* print_info(session); */ if (debug) success("server: Sending dummy packet\n"); ret = gnutls_rehandshake(session); if (ret < 0) { fail("gnutls_rehandshake: %s\n", gnutls_strerror(ret)); terminate(); } if (debug) success("server: Initiating rehandshake\n"); do { ret = gnutls_handshake(session); } while (ret < 0 && gnutls_error_is_fatal(ret) == 0); if (ret < 0) { fail("server: 2nd gnutls_handshake: %s\n", gnutls_strerror(ret)); terminate(); } for (;;) { memset(buffer, 0, MAX_BUF + 1); do { ret = gnutls_record_recv(session, buffer, MAX_BUF); } while (ret == GNUTLS_E_AGAIN || ret == GNUTLS_E_INTERRUPTED); if (ret == 0) { if (debug) success ("server: Peer has closed the GnuTLS connection\n"); break; } else if (ret < 0) { fail("server: Received corrupted data(%s). Closing...\n", gnutls_strerror(ret)); terminate(); } else if (ret > 0) { /* echo data back to the client */ do { ret = gnutls_record_send(session, buffer, strlen(buffer)); } while (ret == GNUTLS_E_AGAIN || ret == GNUTLS_E_INTERRUPTED); } } if (gnutls_kx_get(session) != GNUTLS_KX_ECDHE_RSA) { fail("did not negotiate a certificate ciphersuite on second auth\n"); } /* do not wait for the peer to close the connection. */ gnutls_bye(session, GNUTLS_SHUT_WR); close(fd); gnutls_deinit(session); gnutls_certificate_free_credentials(serverx509cred); gnutls_anon_free_server_credentials(anoncred); gnutls_global_deinit(); if (debug) success("server: finished\n"); }
static void server (int fd, int server_init) { int ret; char buffer[MAX_BUF + 1]; /* this must be called once in the program */ global_init (); if (debug) { gnutls_global_set_log_function (server_log_func); gnutls_global_set_log_level (4711); } gnutls_anon_allocate_server_credentials (&anoncred); session = initialize_tls_session (); gnutls_transport_set_ptr (session, (gnutls_transport_ptr_t) fd); gnutls_transport_set_push_function (session, push); do { ret = gnutls_handshake (session); } while (ret < 0 && gnutls_error_is_fatal(ret) == 0); if (ret < 0) { close (fd); gnutls_deinit (session); fail ("server: Handshake has failed (%s)\n\n", gnutls_strerror (ret)); terminate(); } if (debug) success ("server: Handshake was completed\n"); if (debug) success ("server: TLS version is: %s\n", gnutls_protocol_get_name (gnutls_protocol_get_version (session))); /* see the Getting peer's information example */ /* print_info(session); */ if (server_init) { if (debug) success("server: Sending dummy packet\n"); ret = gnutls_rehandshake(session); if (ret < 0) { fail ("gnutls_rehandshake: %s\n", gnutls_strerror(ret)); terminate(); } if (debug) success("server: Initiating rehandshake\n"); do { ret = gnutls_handshake (session); } while (ret < 0 && gnutls_error_is_fatal(ret) == 0); if (ret < 0) { fail ("server: 2nd gnutls_handshake: %s\n", gnutls_strerror(ret)); terminate(); } } for (;;) { memset (buffer, 0, MAX_BUF + 1); do { ret = gnutls_record_recv (session, buffer, MAX_BUF); } while (ret == GNUTLS_E_AGAIN || ret == GNUTLS_E_INTERRUPTED); if (ret == 0) { if (debug) success ("server: Peer has closed the GnuTLS connection\n"); break; } else if (ret < 0) { if (!server_init && ret == GNUTLS_E_REHANDSHAKE) { if (debug) success("Initiating rehandshake due to client request\n"); do { ret = gnutls_handshake (session); } while (ret < 0 && gnutls_error_is_fatal(ret) == 0); if (ret == 0) break; } fail ("server: Received corrupted data(%s). Closing...\n", gnutls_strerror(ret)); terminate(); } else if (ret > 0) { /* echo data back to the client */ do { ret = gnutls_record_send (session, buffer, strlen (buffer)); } while (ret == GNUTLS_E_AGAIN || ret == GNUTLS_E_INTERRUPTED); } } /* do not wait for the peer to close the connection. */ gnutls_bye (session, GNUTLS_SHUT_WR); close (fd); gnutls_deinit (session); gnutls_anon_free_server_credentials (anoncred); gnutls_global_deinit (); if (debug) success ("server: finished\n"); }