- /* Copyright (c) 2014, Google Inc.
- *
- * Permission to use, copy, modify, and/or distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
- * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
- * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
- * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
-
- #include <openssl/base.h>
-
- #if !defined(OPENSSL_WINDOWS)
- #include <arpa/inet.h>
- #include <netinet/in.h>
- #include <signal.h>
- #include <sys/socket.h>
- #include <unistd.h>
- #endif
-
- #include <string.h>
- #include <sys/types.h>
-
- #include <openssl/bio.h>
- #include <openssl/buf.h>
- #include <openssl/bytestring.h>
- #include <openssl/ssl.h>
-
- #include "async_bio.h"
- #include "packeted_bio.h"
- #include "test_config.h"
-
- static int usage(const char *program) {
- fprintf(stderr, "Usage: %s [flags...]\n",
- program);
- return 1;
- }
-
- static int g_ex_data_index = 0;
- static int g_ex_data_clock_index = 0;
-
- static bool SetConfigPtr(SSL *ssl, const TestConfig *config) {
- return SSL_set_ex_data(ssl, g_ex_data_index, (void *)config) == 1;
- }
-
- static const TestConfig *GetConfigPtr(SSL *ssl) {
- return (const TestConfig *)SSL_get_ex_data(ssl, g_ex_data_index);
- }
-
- static bool SetClockPtr(SSL *ssl, OPENSSL_timeval *clock) {
- return SSL_set_ex_data(ssl, g_ex_data_clock_index, (void *)clock) == 1;
- }
-
- static OPENSSL_timeval *GetClockPtr(SSL *ssl) {
- return (OPENSSL_timeval *)SSL_get_ex_data(ssl, g_ex_data_clock_index);
- }
-
- static EVP_PKEY *LoadPrivateKey(const std::string &file) {
- BIO *bio = BIO_new(BIO_s_file());
- if (bio == NULL) {
- return NULL;
- }
- if (!BIO_read_filename(bio, file.c_str())) {
- BIO_free(bio);
- return NULL;
- }
- EVP_PKEY *pkey = PEM_read_bio_PrivateKey(bio, NULL, NULL, NULL);
- BIO_free(bio);
- return pkey;
- }
-
- static int early_callback_called = 0;
-
- static int select_certificate_callback(const struct ssl_early_callback_ctx *ctx) {
- early_callback_called = 1;
-
- const TestConfig *config = GetConfigPtr(ctx->ssl);
-
- if (config->expected_server_name.empty()) {
- return 1;
- }
-
- const uint8_t *extension_data;
- size_t extension_len;
- CBS extension, server_name_list, host_name;
- uint8_t name_type;
-
- if (!SSL_early_callback_ctx_extension_get(ctx, TLSEXT_TYPE_server_name,
- &extension_data,
- &extension_len)) {
- fprintf(stderr, "Could not find server_name extension.\n");
- return -1;
- }
-
- CBS_init(&extension, extension_data, extension_len);
- if (!CBS_get_u16_length_prefixed(&extension, &server_name_list) ||
- CBS_len(&extension) != 0 ||
- !CBS_get_u8(&server_name_list, &name_type) ||
- name_type != TLSEXT_NAMETYPE_host_name ||
- !CBS_get_u16_length_prefixed(&server_name_list, &host_name) ||
- CBS_len(&server_name_list) != 0) {
- fprintf(stderr, "Could not decode server_name extension.\n");
- return -1;
- }
-
- if (!CBS_mem_equal(&host_name,
- (const uint8_t*)config->expected_server_name.data(),
- config->expected_server_name.size())) {
- fprintf(stderr, "Server name mismatch.\n");
- }
-
- return 1;
- }
-
- static int skip_verify(int preverify_ok, X509_STORE_CTX *store_ctx) {
- return 1;
- }
-
- static int next_protos_advertised_callback(SSL *ssl,
- const uint8_t **out,
- unsigned int *out_len,
- void *arg) {
- const TestConfig *config = GetConfigPtr(ssl);
- if (config->advertise_npn.empty())
- return SSL_TLSEXT_ERR_NOACK;
-
- *out = (const uint8_t*)config->advertise_npn.data();
- *out_len = config->advertise_npn.size();
- return SSL_TLSEXT_ERR_OK;
- }
-
- static int next_proto_select_callback(SSL* ssl,
- uint8_t** out,
- uint8_t* outlen,
- const uint8_t* in,
- unsigned inlen,
- void* arg) {
- const TestConfig *config = GetConfigPtr(ssl);
- if (config->select_next_proto.empty())
- return SSL_TLSEXT_ERR_NOACK;
-
- *out = (uint8_t*)config->select_next_proto.data();
- *outlen = config->select_next_proto.size();
- return SSL_TLSEXT_ERR_OK;
- }
-
- static int alpn_select_callback(SSL* ssl,
- const uint8_t** out,
- uint8_t* outlen,
- const uint8_t* in,
- unsigned inlen,
- void* arg) {
- const TestConfig *config = GetConfigPtr(ssl);
- if (config->select_alpn.empty())
- return SSL_TLSEXT_ERR_NOACK;
-
- if (!config->expected_advertised_alpn.empty() &&
- (config->expected_advertised_alpn.size() != inlen ||
- memcmp(config->expected_advertised_alpn.data(),
- in, inlen) != 0)) {
- fprintf(stderr, "bad ALPN select callback inputs\n");
- exit(1);
- }
-
- *out = (const uint8_t*)config->select_alpn.data();
- *outlen = config->select_alpn.size();
- return SSL_TLSEXT_ERR_OK;
- }
-
- static int cookie_generate_callback(SSL *ssl, uint8_t *cookie, size_t *cookie_len) {
- if (*cookie_len < 32) {
- fprintf(stderr, "Insufficient space for cookie\n");
- return 0;
- }
- *cookie_len = 32;
- memset(cookie, 42, *cookie_len);
- return 1;
- }
-
- static int cookie_verify_callback(SSL *ssl, const uint8_t *cookie, size_t cookie_len) {
- if (cookie_len != 32) {
- fprintf(stderr, "Cookie length mismatch.\n");
- return 0;
- }
- for (size_t i = 0; i < cookie_len; i++) {
- if (cookie[i] != 42) {
- fprintf(stderr, "Cookie mismatch.\n");
- return 0;
- }
- }
- return 1;
- }
-
- static unsigned psk_client_callback(SSL *ssl, const char *hint,
- char *out_identity,
- unsigned max_identity_len,
- uint8_t *out_psk, unsigned max_psk_len) {
- const TestConfig *config = GetConfigPtr(ssl);
-
- if (strcmp(hint ? hint : "", config->psk_identity.c_str()) != 0) {
- fprintf(stderr, "Server PSK hint did not match.\n");
- return 0;
- }
-
- // Account for the trailing '\0' for the identity.
- if (config->psk_identity.size() >= max_identity_len ||
- config->psk.size() > max_psk_len) {
- fprintf(stderr, "PSK buffers too small\n");
- return 0;
- }
-
- BUF_strlcpy(out_identity, config->psk_identity.c_str(),
- max_identity_len);
- memcpy(out_psk, config->psk.data(), config->psk.size());
- return config->psk.size();
- }
-
- static unsigned psk_server_callback(SSL *ssl, const char *identity,
- uint8_t *out_psk, unsigned max_psk_len) {
- const TestConfig *config = GetConfigPtr(ssl);
-
- if (strcmp(identity, config->psk_identity.c_str()) != 0) {
- fprintf(stderr, "Client PSK identity did not match.\n");
- return 0;
- }
-
- if (config->psk.size() > max_psk_len) {
- fprintf(stderr, "PSK buffers too small\n");
- return 0;
- }
-
- memcpy(out_psk, config->psk.data(), config->psk.size());
- return config->psk.size();
- }
-
- static void current_time_cb(SSL *ssl, OPENSSL_timeval *out_clock) {
- *out_clock = *GetClockPtr(ssl);
- }
-
- static SSL_CTX *setup_ctx(const TestConfig *config) {
- SSL_CTX *ssl_ctx = NULL;
- DH *dh = NULL;
-
- ssl_ctx = SSL_CTX_new(config->is_dtls ? DTLS_method() : TLS_method());
- if (ssl_ctx == NULL) {
- goto err;
- }
-
- if (config->is_dtls) {
- // DTLS needs read-ahead to function on a datagram BIO.
- //
- // TODO(davidben): this should not be necessary. DTLS code should only
- // expect a datagram BIO.
- SSL_CTX_set_read_ahead(ssl_ctx, 1);
- }
-
- if (!SSL_CTX_set_ecdh_auto(ssl_ctx, 1)) {
- goto err;
- }
-
- if (!SSL_CTX_set_cipher_list(ssl_ctx, "ALL")) {
- goto err;
- }
-
- dh = DH_get_2048_256(NULL);
- if (dh == NULL ||
- !SSL_CTX_set_tmp_dh(ssl_ctx, dh)) {
- goto err;
- }
-
- SSL_CTX_set_session_cache_mode(ssl_ctx, SSL_SESS_CACHE_BOTH);
-
- ssl_ctx->select_certificate_cb = select_certificate_callback;
-
- SSL_CTX_set_next_protos_advertised_cb(
- ssl_ctx, next_protos_advertised_callback, NULL);
- if (!config->select_next_proto.empty()) {
- SSL_CTX_set_next_proto_select_cb(ssl_ctx, next_proto_select_callback, NULL);
- }
-
- if (!config->select_alpn.empty()) {
- SSL_CTX_set_alpn_select_cb(ssl_ctx, alpn_select_callback, NULL);
- }
-
- SSL_CTX_set_cookie_generate_cb(ssl_ctx, cookie_generate_callback);
- SSL_CTX_set_cookie_verify_cb(ssl_ctx, cookie_verify_callback);
-
- ssl_ctx->tlsext_channel_id_enabled_new = 1;
-
- ssl_ctx->current_time_cb = current_time_cb;
-
- DH_free(dh);
- return ssl_ctx;
-
- err:
- if (dh != NULL) {
- DH_free(dh);
- }
- if (ssl_ctx != NULL) {
- SSL_CTX_free(ssl_ctx);
- }
- return NULL;
- }
-
- static int retry_async(SSL *ssl, int ret, BIO *bio,
- OPENSSL_timeval *clock_delta) {
- // No error; don't retry.
- if (ret >= 0) {
- return 0;
- }
-
- if (clock_delta->tv_usec != 0 || clock_delta->tv_sec != 0) {
- // Process the timeout and retry.
- OPENSSL_timeval *clock = GetClockPtr(ssl);
- clock->tv_usec += clock_delta->tv_usec;
- clock->tv_sec += clock->tv_usec / 1000000;
- clock->tv_usec %= 1000000;
- clock->tv_sec += clock_delta->tv_sec;
- memset(clock_delta, 0, sizeof(*clock_delta));
-
- if (DTLSv1_handle_timeout(ssl) < 0) {
- printf("Error retransmitting.\n");
- return 0;
- }
- return 1;
- }
-
- // See if we needed to read or write more. If so, allow one byte through on
- // the appropriate end to maximally stress the state machine.
- int err = SSL_get_error(ssl, ret);
- if (err == SSL_ERROR_WANT_READ) {
- async_bio_allow_read(bio, 1);
- return 1;
- } else if (err == SSL_ERROR_WANT_WRITE) {
- async_bio_allow_write(bio, 1);
- return 1;
- }
- return 0;
- }
-
- static int do_exchange(SSL_SESSION **out_session,
- SSL_CTX *ssl_ctx,
- const TestConfig *config,
- bool is_resume,
- int fd,
- SSL_SESSION *session) {
- early_callback_called = 0;
-
- OPENSSL_timeval clock = {0}, clock_delta = {0};
- SSL *ssl = SSL_new(ssl_ctx);
- if (ssl == NULL) {
- BIO_print_errors_fp(stdout);
- return 1;
- }
-
- if (!SetConfigPtr(ssl, config) ||
- !SetClockPtr(ssl, &clock)) {
- BIO_print_errors_fp(stdout);
- return 1;
- }
-
- if (config->fallback_scsv) {
- if (!SSL_enable_fallback_scsv(ssl)) {
- BIO_print_errors_fp(stdout);
- return 1;
- }
- }
- if (!config->key_file.empty()) {
- if (!SSL_use_PrivateKey_file(ssl, config->key_file.c_str(),
- SSL_FILETYPE_PEM)) {
- BIO_print_errors_fp(stdout);
- return 1;
- }
- }
- if (!config->cert_file.empty()) {
- if (!SSL_use_certificate_file(ssl, config->cert_file.c_str(),
- SSL_FILETYPE_PEM)) {
- BIO_print_errors_fp(stdout);
- return 1;
- }
- }
- if (config->require_any_client_certificate) {
- SSL_set_verify(ssl, SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT,
- skip_verify);
- }
- if (config->false_start) {
- SSL_set_mode(ssl, SSL_MODE_HANDSHAKE_CUTTHROUGH);
- }
- if (config->cbc_record_splitting) {
- SSL_set_mode(ssl, SSL_MODE_CBC_RECORD_SPLITTING);
- }
- if (config->partial_write) {
- SSL_set_mode(ssl, SSL_MODE_ENABLE_PARTIAL_WRITE);
- }
- if (config->no_tls12) {
- SSL_set_options(ssl, SSL_OP_NO_TLSv1_2);
- }
- if (config->no_tls11) {
- SSL_set_options(ssl, SSL_OP_NO_TLSv1_1);
- }
- if (config->no_tls1) {
- SSL_set_options(ssl, SSL_OP_NO_TLSv1);
- }
- if (config->no_ssl3) {
- SSL_set_options(ssl, SSL_OP_NO_SSLv3);
- }
- if (config->cookie_exchange) {
- SSL_set_options(ssl, SSL_OP_COOKIE_EXCHANGE);
- }
- if (config->tls_d5_bug) {
- SSL_set_options(ssl, SSL_OP_TLS_D5_BUG);
- }
- if (config->allow_unsafe_legacy_renegotiation) {
- SSL_set_options(ssl, SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION);
- }
- if (!config->expected_channel_id.empty()) {
- SSL_enable_tls_channel_id(ssl);
- }
- if (!config->send_channel_id.empty()) {
- EVP_PKEY *pkey = LoadPrivateKey(config->send_channel_id);
- if (pkey == NULL) {
- BIO_print_errors_fp(stdout);
- return 1;
- }
- SSL_enable_tls_channel_id(ssl);
- if (!SSL_set1_tls_channel_id(ssl, pkey)) {
- EVP_PKEY_free(pkey);
- BIO_print_errors_fp(stdout);
- return 1;
- }
- EVP_PKEY_free(pkey);
- }
- if (!config->host_name.empty()) {
- SSL_set_tlsext_host_name(ssl, config->host_name.c_str());
- }
- if (!config->advertise_alpn.empty()) {
- SSL_set_alpn_protos(ssl, (const uint8_t *)config->advertise_alpn.data(),
- config->advertise_alpn.size());
- }
- if (!config->psk.empty()) {
- SSL_set_psk_client_callback(ssl, psk_client_callback);
- SSL_set_psk_server_callback(ssl, psk_server_callback);
- }
- if (!config->psk_identity.empty() &&
- !SSL_use_psk_identity_hint(ssl, config->psk_identity.c_str())) {
- BIO_print_errors_fp(stdout);
- return 1;
- }
- if (!config->srtp_profiles.empty() &&
- !SSL_set_srtp_profiles(ssl, config->srtp_profiles.c_str())) {
- BIO_print_errors_fp(stdout);
- return 1;
- }
- if (config->enable_ocsp_stapling &&
- !SSL_enable_ocsp_stapling(ssl)) {
- BIO_print_errors_fp(stdout);
- return 1;
- }
- if (config->enable_signed_cert_timestamps &&
- !SSL_enable_signed_cert_timestamps(ssl)) {
- BIO_print_errors_fp(stdout);
- return 1;
- }
- SSL_enable_fastradio_padding(ssl, config->fastradio_padding);
- if (config->min_version != 0) {
- SSL_set_min_version(ssl, (uint16_t)config->min_version);
- }
- if (config->max_version != 0) {
- SSL_set_max_version(ssl, (uint16_t)config->max_version);
- }
- if (config->mtu != 0) {
- SSL_set_options(ssl, SSL_OP_NO_QUERY_MTU);
- SSL_set_mtu(ssl, config->mtu);
- }
-
- BIO *bio = BIO_new_fd(fd, 1 /* take ownership */);
- if (bio == NULL) {
- BIO_print_errors_fp(stdout);
- return 1;
- }
- if (config->is_dtls) {
- BIO *packeted = packeted_bio_create(&clock_delta);
- BIO_push(packeted, bio);
- bio = packeted;
- }
- if (config->async) {
- BIO *async =
- config->is_dtls ? async_bio_create_datagram() : async_bio_create();
- BIO_push(async, bio);
- bio = async;
- }
- SSL_set_bio(ssl, bio, bio);
-
- if (session != NULL) {
- if (SSL_set_session(ssl, session) != 1) {
- fprintf(stderr, "failed to set session\n");
- return 2;
- }
- }
-
- int ret;
- do {
- if (config->is_server) {
- ret = SSL_accept(ssl);
- } else {
- ret = SSL_connect(ssl);
- }
- } while (config->async && retry_async(ssl, ret, bio, &clock_delta));
- if (ret != 1) {
- SSL_free(ssl);
- BIO_print_errors_fp(stdout);
- return 2;
- }
-
- if (is_resume && (!!SSL_session_reused(ssl) == config->expect_session_miss)) {
- fprintf(stderr, "session was%s reused\n",
- SSL_session_reused(ssl) ? "" : " not");
- return 2;
- }
-
- if (!config->expected_server_name.empty()) {
- const char *server_name =
- SSL_get_servername(ssl, TLSEXT_NAMETYPE_host_name);
- if (server_name != config->expected_server_name) {
- fprintf(stderr, "servername mismatch (got %s; want %s)\n",
- server_name, config->expected_server_name.c_str());
- return 2;
- }
-
- if (!early_callback_called) {
- fprintf(stderr, "early callback not called\n");
- return 2;
- }
- }
-
- if (!config->expected_certificate_types.empty()) {
- uint8_t *certificate_types;
- int num_certificate_types =
- SSL_get0_certificate_types(ssl, &certificate_types);
- if (num_certificate_types !=
- (int)config->expected_certificate_types.size() ||
- memcmp(certificate_types,
- config->expected_certificate_types.data(),
- num_certificate_types) != 0) {
- fprintf(stderr, "certificate types mismatch\n");
- return 2;
- }
- }
-
- if (!config->expected_next_proto.empty()) {
- const uint8_t *next_proto;
- unsigned next_proto_len;
- SSL_get0_next_proto_negotiated(ssl, &next_proto, &next_proto_len);
- if (next_proto_len != config->expected_next_proto.size() ||
- memcmp(next_proto, config->expected_next_proto.data(),
- next_proto_len) != 0) {
- fprintf(stderr, "negotiated next proto mismatch\n");
- return 2;
- }
- }
-
- if (!config->expected_alpn.empty()) {
- const uint8_t *alpn_proto;
- unsigned alpn_proto_len;
- SSL_get0_alpn_selected(ssl, &alpn_proto, &alpn_proto_len);
- if (alpn_proto_len != config->expected_alpn.size() ||
- memcmp(alpn_proto, config->expected_alpn.data(),
- alpn_proto_len) != 0) {
- fprintf(stderr, "negotiated alpn proto mismatch\n");
- return 2;
- }
- }
-
- if (!config->expected_channel_id.empty()) {
- uint8_t channel_id[64];
- if (!SSL_get_tls_channel_id(ssl, channel_id, sizeof(channel_id))) {
- fprintf(stderr, "no channel id negotiated\n");
- return 2;
- }
- if (config->expected_channel_id.size() != 64 ||
- memcmp(config->expected_channel_id.data(),
- channel_id, 64) != 0) {
- fprintf(stderr, "channel id mismatch\n");
- return 2;
- }
- }
-
- if (config->expect_extended_master_secret) {
- if (!ssl->session->extended_master_secret) {
- fprintf(stderr, "No EMS for session when expected");
- return 2;
- }
- }
-
- if (!config->expected_ocsp_response.empty()) {
- const uint8_t *data;
- size_t len;
- SSL_get0_ocsp_response(ssl, &data, &len);
- if (config->expected_ocsp_response.size() != len ||
- memcmp(config->expected_ocsp_response.data(), data, len) != 0) {
- fprintf(stderr, "OCSP response mismatch\n");
- return 2;
- }
- }
-
- if (!config->expected_signed_cert_timestamps.empty()) {
- const uint8_t *data;
- size_t len;
- SSL_get0_signed_cert_timestamp_list(ssl, &data, &len);
- if (config->expected_signed_cert_timestamps.size() != len ||
- memcmp(config->expected_signed_cert_timestamps.data(),
- data, len) != 0) {
- fprintf(stderr, "SCT list mismatch\n");
- return 2;
- }
- }
-
- if (config->renegotiate) {
- if (config->async) {
- fprintf(stderr, "--renegotiate is not supported with --async.\n");
- return 2;
- }
-
- SSL_renegotiate(ssl);
-
- ret = SSL_do_handshake(ssl);
- if (ret != 1) {
- SSL_free(ssl);
- BIO_print_errors_fp(stdout);
- return 2;
- }
-
- SSL_set_state(ssl, SSL_ST_ACCEPT);
- ret = SSL_do_handshake(ssl);
- if (ret != 1) {
- SSL_free(ssl);
- BIO_print_errors_fp(stdout);
- return 2;
- }
- }
-
- if (config->write_different_record_sizes) {
- if (config->is_dtls) {
- fprintf(stderr, "write_different_record_sizes not supported for DTLS\n");
- return 6;
- }
- // This mode writes a number of different record sizes in an attempt to
- // trip up the CBC record splitting code.
- uint8_t buf[32769];
- memset(buf, 0x42, sizeof(buf));
- static const size_t kRecordSizes[] = {
- 0, 1, 255, 256, 257, 16383, 16384, 16385, 32767, 32768, 32769};
- for (size_t i = 0; i < sizeof(kRecordSizes) / sizeof(kRecordSizes[0]);
- i++) {
- int w;
- const size_t len = kRecordSizes[i];
- size_t off = 0;
-
- if (len > sizeof(buf)) {
- fprintf(stderr, "Bad kRecordSizes value.\n");
- return 5;
- }
-
- do {
- w = SSL_write(ssl, buf + off, len - off);
- if (w > 0) {
- off += (size_t) w;
- }
- } while ((config->async && retry_async(ssl, w, bio, &clock_delta)) ||
- (w > 0 && off < len));
-
- if (w < 0 || off != len) {
- SSL_free(ssl);
- BIO_print_errors_fp(stdout);
- return 4;
- }
- }
- } else {
- if (config->shim_writes_first) {
- int w;
- do {
- w = SSL_write(ssl, "hello", 5);
- } while (config->async && retry_async(ssl, w, bio, &clock_delta));
- }
- for (;;) {
- uint8_t buf[512];
- int n;
- do {
- n = SSL_read(ssl, buf, sizeof(buf));
- } while (config->async && retry_async(ssl, n, bio, &clock_delta));
- int err = SSL_get_error(ssl, n);
- if (err == SSL_ERROR_ZERO_RETURN ||
- (n == 0 && err == SSL_ERROR_SYSCALL)) {
- if (n != 0) {
- fprintf(stderr, "Invalid SSL_get_error output\n");
- return 3;
- }
- /* Accept shutdowns with or without close_notify.
- * TODO(davidben): Write tests which distinguish these two cases. */
- break;
- } else if (err != SSL_ERROR_NONE) {
- if (n > 0) {
- fprintf(stderr, "Invalid SSL_get_error output\n");
- return 3;
- }
- SSL_free(ssl);
- BIO_print_errors_fp(stdout);
- return 3;
- }
- /* Successfully read data. */
- if (n <= 0) {
- fprintf(stderr, "Invalid SSL_get_error output\n");
- return 3;
- }
- for (int i = 0; i < n; i++) {
- buf[i] ^= 0xff;
- }
- int w;
- do {
- w = SSL_write(ssl, buf, n);
- } while (config->async && retry_async(ssl, w, bio, &clock_delta));
- if (w != n) {
- SSL_free(ssl);
- BIO_print_errors_fp(stdout);
- return 4;
- }
- }
- }
-
- if (out_session) {
- *out_session = SSL_get1_session(ssl);
- }
-
- SSL_shutdown(ssl);
- SSL_free(ssl);
- return 0;
- }
-
- int main(int argc, char **argv) {
- #if !defined(OPENSSL_WINDOWS)
- signal(SIGPIPE, SIG_IGN);
- #endif
-
- if (!SSL_library_init()) {
- return 1;
- }
- g_ex_data_index = SSL_get_ex_new_index(0, NULL, NULL, NULL, NULL);
- g_ex_data_clock_index = SSL_get_ex_new_index(0, NULL, NULL, NULL, NULL);
- if (g_ex_data_index < 0 || g_ex_data_clock_index < 0) {
- return 1;
- }
-
- TestConfig config;
- if (!ParseConfig(argc - 1, argv + 1, &config)) {
- return usage(argv[0]);
- }
-
- SSL_CTX *ssl_ctx = setup_ctx(&config);
- if (ssl_ctx == NULL) {
- BIO_print_errors_fp(stdout);
- return 1;
- }
-
- SSL_SESSION *session = NULL;
- int ret = do_exchange(&session,
- ssl_ctx, &config,
- false /* is_resume */,
- 3 /* fd */, NULL /* session */);
- if (ret != 0) {
- goto out;
- }
-
- if (config.resume) {
- ret = do_exchange(NULL,
- ssl_ctx, &config,
- true /* is_resume */,
- 4 /* fd */,
- config.is_server ? NULL : session);
- if (ret != 0) {
- goto out;
- }
- }
-
- ret = 0;
-
- out:
- SSL_SESSION_free(session);
- SSL_CTX_free(ssl_ctx);
- return ret;
- }
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