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d9e070193f
boringssl/ssl/test/bssl_shim.cc
David Benjamin d9e070193f Test async channel ID callback. 
Start exercising the various async callbacks, starting with channel ID. These
will run under the existing state machine coverage tests; -async will also
enable every asynchronous callback we can.

Change-Id: I173148d93d3a9c575b3abc3e2aceb77968b88f0e
Reviewed-on: https://boringssl-review.googlesource.com/3342
Reviewed-by: Adam Langley <agl@google.com>
2015-02-09 23:01:30 +00:00

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24 KiB
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/* 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 "scoped_types.h"
#include "test_config.h"
static int usage(const char *program) {
fprintf(stderr, "Usage: %s [flags...]\n", program);
return 1;
}
struct AsyncState {
ScopedEVP_PKEY channel_id;
};
static void AsyncExFree(void *parent, void *ptr, CRYPTO_EX_DATA *ad, int index,
long argl, void *argp) {
delete ((AsyncState *)ptr);
}
static int g_config_index = 0;
static int g_clock_index = 0;
static int g_async_index = 0;
static bool SetConfigPtr(SSL *ssl, const TestConfig *config) {
return SSL_set_ex_data(ssl, g_config_index, (void *)config) == 1;
}
static const TestConfig *GetConfigPtr(SSL *ssl) {
return (const TestConfig *)SSL_get_ex_data(ssl, g_config_index);
}
static bool SetClockPtr(SSL *ssl, OPENSSL_timeval *clock) {
return SSL_set_ex_data(ssl, g_clock_index, (void *)clock) == 1;
}
static OPENSSL_timeval *GetClockPtr(SSL *ssl) {
return (OPENSSL_timeval *)SSL_get_ex_data(ssl, g_clock_index);
}
static bool SetAsyncState(SSL *ssl, std::unique_ptr<AsyncState> async) {
if (SSL_set_ex_data(ssl, g_async_index, (void *)async.get()) == 1) {
async.release();
return true;
}
return false;
}
static AsyncState *GetAsyncState(SSL *ssl) {
return (AsyncState *)SSL_get_ex_data(ssl, g_async_index);
}
static ScopedEVP_PKEY LoadPrivateKey(const std::string &file) {
ScopedBIO bio(BIO_new(BIO_s_file()));
if (!bio || !BIO_read_filename(bio.get(), file.c_str())) {
return nullptr;
}
ScopedEVP_PKEY pkey(PEM_read_bio_PrivateKey(bio.get(), NULL, NULL, NULL));
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 void channel_id_callback(SSL *ssl, EVP_PKEY **out_pkey) {
*out_pkey = GetAsyncState(ssl)->channel_id.release();
}
static ScopedSSL_CTX setup_ctx(const TestConfig *config) {
ScopedSSL_CTX ssl_ctx(SSL_CTX_new(
config->is_dtls ? DTLS_method() : TLS_method()));
if (!ssl_ctx) {
return nullptr;
}
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.get(), 1);
}
if (!SSL_CTX_set_ecdh_auto(ssl_ctx.get(), 1)) {
return nullptr;
}
if (!SSL_CTX_set_cipher_list(ssl_ctx.get(), "ALL")) {
return nullptr;
}
ScopedDH dh(DH_get_2048_256(NULL));
if (!dh || !SSL_CTX_set_tmp_dh(ssl_ctx.get(), dh.get())) {
return nullptr;
}
SSL_CTX_set_session_cache_mode(ssl_ctx.get(), SSL_SESS_CACHE_BOTH);
ssl_ctx->select_certificate_cb = select_certificate_callback;
SSL_CTX_set_next_protos_advertised_cb(
ssl_ctx.get(), next_protos_advertised_callback, NULL);
if (!config->select_next_proto.empty()) {
SSL_CTX_set_next_proto_select_cb(ssl_ctx.get(), next_proto_select_callback,
NULL);
}
if (!config->select_alpn.empty()) {
SSL_CTX_set_alpn_select_cb(ssl_ctx.get(), alpn_select_callback, NULL);
}
SSL_CTX_set_cookie_generate_cb(ssl_ctx.get(), cookie_generate_callback);
SSL_CTX_set_cookie_verify_cb(ssl_ctx.get(), cookie_verify_callback);
ssl_ctx->tlsext_channel_id_enabled_new = 1;
SSL_CTX_set_channel_id_cb(ssl_ctx.get(), channel_id_callback);
ssl_ctx->current_time_cb = current_time_cb;
return ssl_ctx;
}
static int retry_async(SSL *ssl, int ret, BIO *async,
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.
switch (SSL_get_error(ssl, ret)) {
case SSL_ERROR_WANT_READ:
async_bio_allow_read(async, 1);
return 1;
case SSL_ERROR_WANT_WRITE:
async_bio_allow_write(async, 1);
return 1;
case SSL_ERROR_WANT_CHANNEL_ID_LOOKUP:
GetAsyncState(ssl)->channel_id =
LoadPrivateKey(GetConfigPtr(ssl)->send_channel_id);
return 1;
default:
return 0;
}
}
static int do_exchange(ScopedSSL_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};
ScopedSSL ssl(SSL_new(ssl_ctx));
if (!ssl) {
BIO_print_errors_fp(stdout);
return 1;
}
if (!SetConfigPtr(ssl.get(), config) ||
!SetClockPtr(ssl.get(), &clock) |
!SetAsyncState(ssl.get(), std::unique_ptr<AsyncState>(new AsyncState))) {
BIO_print_errors_fp(stdout);
return 1;
}
if (config->fallback_scsv) {
if (!SSL_enable_fallback_scsv(ssl.get())) {
BIO_print_errors_fp(stdout);
return 1;
}
}
if (!config->key_file.empty()) {
if (!SSL_use_PrivateKey_file(ssl.get(), 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.get(), 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.get(), SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT,
skip_verify);
}
if (config->false_start) {
SSL_set_mode(ssl.get(), SSL_MODE_HANDSHAKE_CUTTHROUGH);
}
if (config->cbc_record_splitting) {
SSL_set_mode(ssl.get(), SSL_MODE_CBC_RECORD_SPLITTING);
}
if (config->partial_write) {
SSL_set_mode(ssl.get(), SSL_MODE_ENABLE_PARTIAL_WRITE);
}
if (config->no_tls12) {
SSL_set_options(ssl.get(), SSL_OP_NO_TLSv1_2);
}
if (config->no_tls11) {
SSL_set_options(ssl.get(), SSL_OP_NO_TLSv1_1);
}
if (config->no_tls1) {
SSL_set_options(ssl.get(), SSL_OP_NO_TLSv1);
}
if (config->no_ssl3) {
SSL_set_options(ssl.get(), SSL_OP_NO_SSLv3);
}
if (config->cookie_exchange) {
SSL_set_options(ssl.get(), SSL_OP_COOKIE_EXCHANGE);
}
if (config->tls_d5_bug) {
SSL_set_options(ssl.get(), SSL_OP_TLS_D5_BUG);
}
if (config->allow_unsafe_legacy_renegotiation) {
SSL_set_options(ssl.get(), SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION);
}
if (!config->expected_channel_id.empty()) {
SSL_enable_tls_channel_id(ssl.get());
}
if (!config->send_channel_id.empty()) {
SSL_enable_tls_channel_id(ssl.get());
if (!config->async) {
// The async case will be supplied by |channel_id_callback|.
ScopedEVP_PKEY pkey = LoadPrivateKey(config->send_channel_id);
if (!pkey || !SSL_set1_tls_channel_id(ssl.get(), pkey.get())) {
BIO_print_errors_fp(stdout);
return 1;
}
}
}
if (!config->host_name.empty()) {
SSL_set_tlsext_host_name(ssl.get(), config->host_name.c_str());
}
if (!config->advertise_alpn.empty()) {
SSL_set_alpn_protos(ssl.get(), (const uint8_t *)config->advertise_alpn.data(),
config->advertise_alpn.size());
}
if (!config->psk.empty()) {
SSL_set_psk_client_callback(ssl.get(), psk_client_callback);
SSL_set_psk_server_callback(ssl.get(), psk_server_callback);
}
if (!config->psk_identity.empty() &&
!SSL_use_psk_identity_hint(ssl.get(), config->psk_identity.c_str())) {
BIO_print_errors_fp(stdout);
return 1;
}
if (!config->srtp_profiles.empty() &&
!SSL_set_srtp_profiles(ssl.get(), config->srtp_profiles.c_str())) {
BIO_print_errors_fp(stdout);
return 1;
}
if (config->enable_ocsp_stapling &&
!SSL_enable_ocsp_stapling(ssl.get())) {
BIO_print_errors_fp(stdout);
return 1;
}
if (config->enable_signed_cert_timestamps &&
!SSL_enable_signed_cert_timestamps(ssl.get())) {
BIO_print_errors_fp(stdout);
return 1;
}
SSL_enable_fastradio_padding(ssl.get(), config->fastradio_padding);
if (config->min_version != 0) {
SSL_set_min_version(ssl.get(), (uint16_t)config->min_version);
}
if (config->max_version != 0) {
SSL_set_max_version(ssl.get(), (uint16_t)config->max_version);
}
if (config->mtu != 0) {
SSL_set_options(ssl.get(), SSL_OP_NO_QUERY_MTU);
SSL_set_mtu(ssl.get(), config->mtu);
}
ScopedBIO bio(BIO_new_fd(fd, 1 /* take ownership */));
if (!bio) {
BIO_print_errors_fp(stdout);
return 1;
}
if (config->is_dtls) {
ScopedBIO packeted = packeted_bio_create(&clock_delta);
BIO_push(packeted.get(), bio.release());
bio = std::move(packeted);
}
BIO *async = NULL;
if (config->async) {
ScopedBIO async_scoped =
config->is_dtls ? async_bio_create_datagram() : async_bio_create();
BIO_push(async_scoped.get(), bio.release());
async = async_scoped.get();
bio = std::move(async_scoped);
}
SSL_set_bio(ssl.get(), bio.get(), bio.get());
bio.release(); // SSL_set_bio takes ownership.
if (session != NULL) {
if (SSL_set_session(ssl.get(), session) != 1) {
fprintf(stderr, "failed to set session\n");
return 2;
}
}
int ret;
if (config->implicit_handshake) {
if (config->is_server) {
SSL_set_accept_state(ssl.get());
} else {
SSL_set_connect_state(ssl.get());
}
} else {
do {
if (config->is_server) {
ret = SSL_accept(ssl.get());
} else {
ret = SSL_connect(ssl.get());
}
} while (config->async && retry_async(ssl.get(), ret, async, &clock_delta));
if (ret != 1) {
BIO_print_errors_fp(stdout);
return 2;
}
if (is_resume &&
(!!SSL_session_reused(ssl.get()) == config->expect_session_miss)) {
fprintf(stderr, "session was%s reused\n",
SSL_session_reused(ssl.get()) ? "" : " not");
return 2;
}
if (!config->expected_server_name.empty()) {
const char *server_name =
SSL_get_servername(ssl.get(), 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.get(), &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.get(), &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.get(), &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.get(), 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.get(), &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.get(), &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;
}
if (config->implicit_handshake) {
fprintf(stderr, "-renegotiate is not supported with -implicit-handshake.\n");
return 2;
}
SSL_renegotiate(ssl.get());
ret = SSL_do_handshake(ssl.get());
if (ret != 1) {
BIO_print_errors_fp(stdout);
return 2;
}
SSL_set_state(ssl.get(), SSL_ST_ACCEPT);
ret = SSL_do_handshake(ssl.get());
if (ret != 1) {
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.get(), buf + off, len - off);
if (w > 0) {
off += (size_t) w;
}
} while ((config->async && retry_async(ssl.get(), w, async, &clock_delta)) ||
(w > 0 && off < len));
if (w < 0 || off != len) {
BIO_print_errors_fp(stdout);
return 4;
}
}
} else {
if (config->shim_writes_first) {
int w;
do {
w = SSL_write(ssl.get(), "hello", 5);
} while (config->async && retry_async(ssl.get(), w, async, &clock_delta));
}
for (;;) {
uint8_t buf[512];
int n;
do {
n = SSL_read(ssl.get(), buf, sizeof(buf));
} while (config->async && retry_async(ssl.get(), n, async, &clock_delta));
int err = SSL_get_error(ssl.get(), 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;
}
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.get(), buf, n);
} while (config->async && retry_async(ssl.get(), w, async, &clock_delta));
if (w != n) {
BIO_print_errors_fp(stdout);
return 4;
}
}
}
if (out_session) {
out_session->reset(SSL_get1_session(ssl.get()));
}
SSL_shutdown(ssl.get());
return 0;
}
int main(int argc, char **argv) {
#if !defined(OPENSSL_WINDOWS)
signal(SIGPIPE, SIG_IGN);
#endif
if (!SSL_library_init()) {
return 1;
}
g_config_index = SSL_get_ex_new_index(0, NULL, NULL, NULL, NULL);
g_clock_index = SSL_get_ex_new_index(0, NULL, NULL, NULL, NULL);
g_async_index = SSL_get_ex_new_index(0, NULL, NULL, NULL, AsyncExFree);
if (g_config_index < 0 || g_clock_index < 0 || g_async_index < 0) {
return 1;
}
TestConfig config;
if (!ParseConfig(argc - 1, argv + 1, &config)) {
return usage(argv[0]);
}
ScopedSSL_CTX ssl_ctx = setup_ctx(&config);
if (!ssl_ctx) {
BIO_print_errors_fp(stdout);
return 1;
}
ScopedSSL_SESSION session;
int ret = do_exchange(&session,
ssl_ctx.get(), &config,
false /* is_resume */,
3 /* fd */, NULL /* session */);
if (ret != 0) {
return ret;
}
if (config.resume) {
ret = do_exchange(NULL,
ssl_ctx.get(), &config,
true /* is_resume */,
4 /* fd */,
config.is_server ? NULL : session.get());
if (ret != 0) {
return ret;
}
}
return 0;
}
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