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test_config.cc
1721 lines (1522 loc) · 56 KB
/
test_config.cc
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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 "test_config.h"
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <memory>
#include <openssl/base64.h>
#include <openssl/rand.h>
#include <openssl/ssl.h>
#include "../../crypto/internal.h"
#include "../internal.h"
#include "test_state.h"
namespace {
template <typename T>
struct Flag {
const char *flag;
T TestConfig::*member;
};
// FindField looks for the flag in |flags| that matches |flag|. If one is found,
// it returns a pointer to the corresponding field in |config|. Otherwise, it
// returns NULL.
template<typename T, size_t N>
T *FindField(TestConfig *config, const Flag<T> (&flags)[N], const char *flag) {
for (size_t i = 0; i < N; i++) {
if (strcmp(flag, flags[i].flag) == 0) {
return &(config->*(flags[i].member));
}
}
return NULL;
}
const Flag<bool> kBoolFlags[] = {
{"-server", &TestConfig::is_server},
{"-dtls", &TestConfig::is_dtls},
{"-quic", &TestConfig::is_quic},
{"-fallback-scsv", &TestConfig::fallback_scsv},
{"-require-any-client-certificate",
&TestConfig::require_any_client_certificate},
{"-false-start", &TestConfig::false_start},
{"-async", &TestConfig::async},
{"-write-different-record-sizes",
&TestConfig::write_different_record_sizes},
{"-cbc-record-splitting", &TestConfig::cbc_record_splitting},
{"-partial-write", &TestConfig::partial_write},
{"-no-tls13", &TestConfig::no_tls13},
{"-no-tls12", &TestConfig::no_tls12},
{"-no-tls11", &TestConfig::no_tls11},
{"-no-tls1", &TestConfig::no_tls1},
{"-no-ticket", &TestConfig::no_ticket},
{"-enable-channel-id", &TestConfig::enable_channel_id},
{"-shim-writes-first", &TestConfig::shim_writes_first},
{"-expect-session-miss", &TestConfig::expect_session_miss},
{"-decline-alpn", &TestConfig::decline_alpn},
{"-select-empty-alpn", &TestConfig::select_empty_alpn},
{"-expect-extended-master-secret",
&TestConfig::expect_extended_master_secret},
{"-enable-ocsp-stapling", &TestConfig::enable_ocsp_stapling},
{"-enable-signed-cert-timestamps",
&TestConfig::enable_signed_cert_timestamps},
{"-implicit-handshake", &TestConfig::implicit_handshake},
{"-use-early-callback", &TestConfig::use_early_callback},
{"-fail-early-callback", &TestConfig::fail_early_callback},
{"-install-ddos-callback", &TestConfig::install_ddos_callback},
{"-fail-ddos-callback", &TestConfig::fail_ddos_callback},
{"-fail-cert-callback", &TestConfig::fail_cert_callback},
{"-handshake-never-done", &TestConfig::handshake_never_done},
{"-use-export-context", &TestConfig::use_export_context},
{"-tls-unique", &TestConfig::tls_unique},
{"-expect-ticket-renewal", &TestConfig::expect_ticket_renewal},
{"-expect-no-session", &TestConfig::expect_no_session},
{"-expect-ticket-supports-early-data",
&TestConfig::expect_ticket_supports_early_data},
{"-use-ticket-callback", &TestConfig::use_ticket_callback},
{"-renew-ticket", &TestConfig::renew_ticket},
{"-enable-early-data", &TestConfig::enable_early_data},
{"-check-close-notify", &TestConfig::check_close_notify},
{"-shim-shuts-down", &TestConfig::shim_shuts_down},
{"-verify-fail", &TestConfig::verify_fail},
{"-verify-peer", &TestConfig::verify_peer},
{"-verify-peer-if-no-obc", &TestConfig::verify_peer_if_no_obc},
{"-expect-verify-result", &TestConfig::expect_verify_result},
{"-renegotiate-once", &TestConfig::renegotiate_once},
{"-renegotiate-freely", &TestConfig::renegotiate_freely},
{"-renegotiate-ignore", &TestConfig::renegotiate_ignore},
{"-renegotiate-explicit", &TestConfig::renegotiate_explicit},
{"-forbid-renegotiation-after-handshake",
&TestConfig::forbid_renegotiation_after_handshake},
{"-enable-all-curves", &TestConfig::enable_all_curves},
{"-use-old-client-cert-callback",
&TestConfig::use_old_client_cert_callback},
{"-send-alert", &TestConfig::send_alert},
{"-peek-then-read", &TestConfig::peek_then_read},
{"-enable-grease", &TestConfig::enable_grease},
{"-use-exporter-between-reads", &TestConfig::use_exporter_between_reads},
{"-retain-only-sha256-client-cert",
&TestConfig::retain_only_sha256_client_cert},
{"-expect-sha256-client-cert", &TestConfig::expect_sha256_client_cert},
{"-read-with-unfinished-write", &TestConfig::read_with_unfinished_write},
{"-expect-secure-renegotiation", &TestConfig::expect_secure_renegotiation},
{"-expect-no-secure-renegotiation",
&TestConfig::expect_no_secure_renegotiation},
{"-expect-session-id", &TestConfig::expect_session_id},
{"-expect-no-session-id", &TestConfig::expect_no_session_id},
{"-expect-accept-early-data", &TestConfig::expect_accept_early_data},
{"-expect-reject-early-data", &TestConfig::expect_reject_early_data},
{"-expect-no-offer-early-data", &TestConfig::expect_no_offer_early_data},
{"-no-op-extra-handshake", &TestConfig::no_op_extra_handshake},
{"-handshake-twice", &TestConfig::handshake_twice},
{"-allow-unknown-alpn-protos", &TestConfig::allow_unknown_alpn_protos},
{"-use-custom-verify-callback", &TestConfig::use_custom_verify_callback},
{"-allow-false-start-without-alpn",
&TestConfig::allow_false_start_without_alpn},
{"-ignore-tls13-downgrade", &TestConfig::ignore_tls13_downgrade},
{"-expect-tls13-downgrade", &TestConfig::expect_tls13_downgrade},
{"-handoff", &TestConfig::handoff},
{"-use-ocsp-callback", &TestConfig::use_ocsp_callback},
{"-set-ocsp-in-callback", &TestConfig::set_ocsp_in_callback},
{"-decline-ocsp-callback", &TestConfig::decline_ocsp_callback},
{"-fail-ocsp-callback", &TestConfig::fail_ocsp_callback},
{"-install-cert-compression-algs",
&TestConfig::install_cert_compression_algs},
{"-is-handshaker-supported", &TestConfig::is_handshaker_supported},
{"-handshaker-resume", &TestConfig::handshaker_resume},
{"-reverify-on-resume", &TestConfig::reverify_on_resume},
{"-enforce-rsa-key-usage", &TestConfig::enforce_rsa_key_usage},
{"-jdk11-workaround", &TestConfig::jdk11_workaround},
{"-server-preference", &TestConfig::server_preference},
{"-export-traffic-secrets", &TestConfig::export_traffic_secrets},
{"-key-update", &TestConfig::key_update},
{"-expect-delegated-credential-used",
&TestConfig::expect_delegated_credential_used},
{"-expect-hrr", &TestConfig::expect_hrr},
{"-expect-no-hrr", &TestConfig::expect_no_hrr},
};
const Flag<std::string> kStringFlags[] = {
{"-write-settings", &TestConfig::write_settings},
{"-key-file", &TestConfig::key_file},
{"-cert-file", &TestConfig::cert_file},
{"-expect-server-name", &TestConfig::expect_server_name},
{"-advertise-npn", &TestConfig::advertise_npn},
{"-expect-next-proto", &TestConfig::expect_next_proto},
{"-select-next-proto", &TestConfig::select_next_proto},
{"-send-channel-id", &TestConfig::send_channel_id},
{"-host-name", &TestConfig::host_name},
{"-advertise-alpn", &TestConfig::advertise_alpn},
{"-expect-alpn", &TestConfig::expect_alpn},
{"-expect-late-alpn", &TestConfig::expect_late_alpn},
{"-expect-advertised-alpn", &TestConfig::expect_advertised_alpn},
{"-select-alpn", &TestConfig::select_alpn},
{"-psk", &TestConfig::psk},
{"-psk-identity", &TestConfig::psk_identity},
{"-srtp-profiles", &TestConfig::srtp_profiles},
{"-cipher", &TestConfig::cipher},
{"-export-label", &TestConfig::export_label},
{"-export-context", &TestConfig::export_context},
{"-expect-peer-cert-file", &TestConfig::expect_peer_cert_file},
{"-use-client-ca-list", &TestConfig::use_client_ca_list},
{"-expect-client-ca-list", &TestConfig::expect_client_ca_list},
{"-expect-msg-callback", &TestConfig::expect_msg_callback},
{"-handshaker-path", &TestConfig::handshaker_path},
{"-delegated-credential", &TestConfig::delegated_credential},
{"-expect-early-data-reason", &TestConfig::expect_early_data_reason},
};
const Flag<std::string> kBase64Flags[] = {
{"-expect-certificate-types", &TestConfig::expect_certificate_types},
{"-expect-channel-id", &TestConfig::expect_channel_id},
{"-token-binding-params", &TestConfig::send_token_binding_params},
{"-expect-ocsp-response", &TestConfig::expect_ocsp_response},
{"-expect-signed-cert-timestamps",
&TestConfig::expect_signed_cert_timestamps},
{"-ocsp-response", &TestConfig::ocsp_response},
{"-signed-cert-timestamps", &TestConfig::signed_cert_timestamps},
{"-ticket-key", &TestConfig::ticket_key},
{"-quic-transport-params", &TestConfig::quic_transport_params},
{"-expect-quic-transport-params",
&TestConfig::expect_quic_transport_params},
};
const Flag<int> kIntFlags[] = {
{"-port", &TestConfig::port},
{"-resume-count", &TestConfig::resume_count},
{"-expect-token-binding-param", &TestConfig::expect_token_binding_param},
{"-min-version", &TestConfig::min_version},
{"-max-version", &TestConfig::max_version},
{"-expect-version", &TestConfig::expect_version},
{"-mtu", &TestConfig::mtu},
{"-export-keying-material", &TestConfig::export_keying_material},
{"-expect-total-renegotiations", &TestConfig::expect_total_renegotiations},
{"-expect-peer-signature-algorithm",
&TestConfig::expect_peer_signature_algorithm},
{"-expect-curve-id", &TestConfig::expect_curve_id},
{"-initial-timeout-duration-ms", &TestConfig::initial_timeout_duration_ms},
{"-max-cert-list", &TestConfig::max_cert_list},
{"-expect-cipher-aes", &TestConfig::expect_cipher_aes},
{"-expect-cipher-no-aes", &TestConfig::expect_cipher_no_aes},
{"-resumption-delay", &TestConfig::resumption_delay},
{"-max-send-fragment", &TestConfig::max_send_fragment},
{"-read-size", &TestConfig::read_size},
{"-expect-ticket-age-skew", &TestConfig::expect_ticket_age_skew},
};
const Flag<std::vector<int>> kIntVectorFlags[] = {
{"-signing-prefs", &TestConfig::signing_prefs},
{"-verify-prefs", &TestConfig::verify_prefs},
{"-expect-peer-verify-pref", &TestConfig::expect_peer_verify_prefs},
{"-curves", &TestConfig::curves},
};
bool ParseFlag(char *flag, int argc, char **argv, int *i,
bool skip, TestConfig *out_config) {
bool *bool_field = FindField(out_config, kBoolFlags, flag);
if (bool_field != NULL) {
if (!skip) {
*bool_field = true;
}
return true;
}
std::string *string_field = FindField(out_config, kStringFlags, flag);
if (string_field != NULL) {
*i = *i + 1;
if (*i >= argc) {
fprintf(stderr, "Missing parameter.\n");
return false;
}
if (!skip) {
string_field->assign(argv[*i]);
}
return true;
}
std::string *base64_field = FindField(out_config, kBase64Flags, flag);
if (base64_field != NULL) {
*i = *i + 1;
if (*i >= argc) {
fprintf(stderr, "Missing parameter.\n");
return false;
}
size_t len;
if (!EVP_DecodedLength(&len, strlen(argv[*i]))) {
fprintf(stderr, "Invalid base64: %s.\n", argv[*i]);
return false;
}
std::unique_ptr<uint8_t[]> decoded(new uint8_t[len]);
if (!EVP_DecodeBase64(decoded.get(), &len, len,
reinterpret_cast<const uint8_t *>(argv[*i]),
strlen(argv[*i]))) {
fprintf(stderr, "Invalid base64: %s.\n", argv[*i]);
return false;
}
if (!skip) {
base64_field->assign(reinterpret_cast<const char *>(decoded.get()),
len);
}
return true;
}
int *int_field = FindField(out_config, kIntFlags, flag);
if (int_field) {
*i = *i + 1;
if (*i >= argc) {
fprintf(stderr, "Missing parameter.\n");
return false;
}
if (!skip) {
*int_field = atoi(argv[*i]);
}
return true;
}
std::vector<int> *int_vector_field =
FindField(out_config, kIntVectorFlags, flag);
if (int_vector_field) {
*i = *i + 1;
if (*i >= argc) {
fprintf(stderr, "Missing parameter.\n");
return false;
}
// Each instance of the flag adds to the list.
if (!skip) {
int_vector_field->push_back(atoi(argv[*i]));
}
return true;
}
fprintf(stderr, "Unknown argument: %s.\n", flag);
return false;
}
const char kInit[] = "-on-initial";
const char kResume[] = "-on-resume";
const char kRetry[] = "-on-retry";
} // namespace
bool ParseConfig(int argc, char **argv,
TestConfig *out_initial,
TestConfig *out_resume,
TestConfig *out_retry) {
out_initial->argc = out_resume->argc = out_retry->argc = argc;
out_initial->argv = out_resume->argv = out_retry->argv = argv;
for (int i = 0; i < argc; i++) {
bool skip = false;
char *flag = argv[i];
if (strncmp(flag, kInit, strlen(kInit)) == 0) {
if (!ParseFlag(flag + strlen(kInit), argc, argv, &i, skip, out_initial)) {
return false;
}
} else if (strncmp(flag, kResume, strlen(kResume)) == 0) {
if (!ParseFlag(flag + strlen(kResume), argc, argv, &i, skip,
out_resume)) {
return false;
}
} else if (strncmp(flag, kRetry, strlen(kRetry)) == 0) {
if (!ParseFlag(flag + strlen(kRetry), argc, argv, &i, skip, out_retry)) {
return false;
}
} else {
int i_init = i;
int i_resume = i;
if (!ParseFlag(flag, argc, argv, &i_init, skip, out_initial) ||
!ParseFlag(flag, argc, argv, &i_resume, skip, out_resume) ||
!ParseFlag(flag, argc, argv, &i, skip, out_retry)) {
return false;
}
}
}
return true;
}
static CRYPTO_once_t once = CRYPTO_ONCE_INIT;
static int g_config_index = 0;
static CRYPTO_BUFFER_POOL *g_pool = nullptr;
static void init_once() {
g_config_index = SSL_get_ex_new_index(0, NULL, NULL, NULL, NULL);
if (g_config_index < 0) {
abort();
}
g_pool = CRYPTO_BUFFER_POOL_new();
if (!g_pool) {
abort();
}
}
bool SetTestConfig(SSL *ssl, const TestConfig *config) {
CRYPTO_once(&once, init_once);
return SSL_set_ex_data(ssl, g_config_index, (void *)config) == 1;
}
const TestConfig *GetTestConfig(const SSL *ssl) {
CRYPTO_once(&once, init_once);
return (const TestConfig *)SSL_get_ex_data(ssl, g_config_index);
}
static int LegacyOCSPCallback(SSL *ssl, void *arg) {
const TestConfig *config = GetTestConfig(ssl);
if (!SSL_is_server(ssl)) {
return !config->fail_ocsp_callback;
}
if (!config->ocsp_response.empty() && config->set_ocsp_in_callback &&
!SSL_set_ocsp_response(ssl, (const uint8_t *)config->ocsp_response.data(),
config->ocsp_response.size())) {
return SSL_TLSEXT_ERR_ALERT_FATAL;
}
if (config->fail_ocsp_callback) {
return SSL_TLSEXT_ERR_ALERT_FATAL;
}
if (config->decline_ocsp_callback) {
return SSL_TLSEXT_ERR_NOACK;
}
return SSL_TLSEXT_ERR_OK;
}
static int ServerNameCallback(SSL *ssl, int *out_alert, void *arg) {
// SNI must be accessible from the SNI callback.
const TestConfig *config = GetTestConfig(ssl);
const char *server_name = SSL_get_servername(ssl, TLSEXT_NAMETYPE_host_name);
if (server_name == nullptr ||
std::string(server_name) != config->expect_server_name) {
fprintf(stderr, "servername mismatch (got %s; want %s).\n", server_name,
config->expect_server_name.c_str());
return SSL_TLSEXT_ERR_ALERT_FATAL;
}
return SSL_TLSEXT_ERR_OK;
}
static int NextProtoSelectCallback(SSL *ssl, uint8_t **out, uint8_t *outlen,
const uint8_t *in, unsigned inlen,
void *arg) {
const TestConfig *config = GetTestConfig(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 NextProtosAdvertisedCallback(SSL *ssl, const uint8_t **out,
unsigned int *out_len, void *arg) {
const TestConfig *config = GetTestConfig(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 void MessageCallback(int is_write, int version, int content_type,
const void *buf, size_t len, SSL *ssl, void *arg) {
const uint8_t *buf_u8 = reinterpret_cast<const uint8_t *>(buf);
const TestConfig *config = GetTestConfig(ssl);
TestState *state = GetTestState(ssl);
if (!state->msg_callback_ok) {
return;
}
if (content_type == SSL3_RT_HEADER) {
if (len !=
(config->is_dtls ? DTLS1_RT_HEADER_LENGTH : SSL3_RT_HEADER_LENGTH)) {
fprintf(stderr, "Incorrect length for record header: %zu.\n", len);
state->msg_callback_ok = false;
}
return;
}
state->msg_callback_text += is_write ? "write " : "read ";
switch (content_type) {
case 0:
if (version != SSL2_VERSION) {
fprintf(stderr, "Incorrect version for V2ClientHello: %x.\n", version);
state->msg_callback_ok = false;
return;
}
state->msg_callback_text += "v2clienthello\n";
return;
case SSL3_RT_HANDSHAKE: {
CBS cbs;
CBS_init(&cbs, buf_u8, len);
uint8_t type;
uint32_t msg_len;
if (!CBS_get_u8(&cbs, &type) ||
// TODO(davidben): Reporting on entire messages would be more
// consistent than fragments.
(config->is_dtls &&
!CBS_skip(&cbs, 3 /* total */ + 2 /* seq */ + 3 /* frag_off */)) ||
!CBS_get_u24(&cbs, &msg_len) || !CBS_skip(&cbs, msg_len) ||
CBS_len(&cbs) != 0) {
fprintf(stderr, "Could not parse handshake message.\n");
state->msg_callback_ok = false;
return;
}
char text[16];
snprintf(text, sizeof(text), "hs %d\n", type);
state->msg_callback_text += text;
return;
}
case SSL3_RT_CHANGE_CIPHER_SPEC:
if (len != 1 || buf_u8[0] != 1) {
fprintf(stderr, "Invalid ChangeCipherSpec.\n");
state->msg_callback_ok = false;
return;
}
state->msg_callback_text += "ccs\n";
return;
case SSL3_RT_ALERT:
if (len != 2) {
fprintf(stderr, "Invalid alert.\n");
state->msg_callback_ok = false;
return;
}
char text[16];
snprintf(text, sizeof(text), "alert %d %d\n", buf_u8[0], buf_u8[1]);
state->msg_callback_text += text;
return;
default:
fprintf(stderr, "Invalid content_type: %d.\n", content_type);
state->msg_callback_ok = false;
}
}
static int TicketKeyCallback(SSL *ssl, uint8_t *key_name, uint8_t *iv,
EVP_CIPHER_CTX *ctx, HMAC_CTX *hmac_ctx,
int encrypt) {
if (!encrypt) {
if (GetTestState(ssl)->ticket_decrypt_done) {
fprintf(stderr, "TicketKeyCallback called after completion.\n");
return -1;
}
GetTestState(ssl)->ticket_decrypt_done = true;
}
// This is just test code, so use the all-zeros key.
static const uint8_t kZeros[16] = {0};
if (encrypt) {
OPENSSL_memcpy(key_name, kZeros, sizeof(kZeros));
RAND_bytes(iv, 16);
} else if (OPENSSL_memcmp(key_name, kZeros, 16) != 0) {
return 0;
}
if (!HMAC_Init_ex(hmac_ctx, kZeros, sizeof(kZeros), EVP_sha256(), NULL) ||
!EVP_CipherInit_ex(ctx, EVP_aes_128_cbc(), NULL, kZeros, iv, encrypt)) {
return -1;
}
if (!encrypt) {
return GetTestConfig(ssl)->renew_ticket ? 2 : 1;
}
return 1;
}
static int NewSessionCallback(SSL *ssl, SSL_SESSION *session) {
// This callback is called as the handshake completes. |SSL_get_session|
// must continue to work and, historically, |SSL_in_init| returned false at
// this point.
if (SSL_in_init(ssl) || SSL_get_session(ssl) == nullptr) {
fprintf(stderr, "Invalid state for NewSessionCallback.\n");
abort();
}
GetTestState(ssl)->got_new_session = true;
GetTestState(ssl)->new_session.reset(session);
return 1;
}
static void InfoCallback(const SSL *ssl, int type, int val) {
if (type == SSL_CB_HANDSHAKE_DONE) {
if (GetTestConfig(ssl)->handshake_never_done) {
fprintf(stderr, "Handshake unexpectedly completed.\n");
// Abort before any expected error code is printed, to ensure the overall
// test fails.
abort();
}
// This callback is called when the handshake completes. |SSL_get_session|
// must continue to work and |SSL_in_init| must return false.
if (SSL_in_init(ssl) || SSL_get_session(ssl) == nullptr) {
fprintf(stderr, "Invalid state for SSL_CB_HANDSHAKE_DONE.\n");
abort();
}
GetTestState(ssl)->handshake_done = true;
// Callbacks may be called again on a new handshake.
GetTestState(ssl)->ticket_decrypt_done = false;
GetTestState(ssl)->alpn_select_done = false;
}
}
static void ChannelIdCallback(SSL *ssl, EVP_PKEY **out_pkey) {
*out_pkey = GetTestState(ssl)->channel_id.release();
}
static SSL_SESSION *GetSessionCallback(SSL *ssl, const uint8_t *data, int len,
int *copy) {
TestState *async_state = GetTestState(ssl);
if (async_state->session) {
*copy = 0;
return async_state->session.release();
} else if (async_state->pending_session) {
return SSL_magic_pending_session_ptr();
} else {
return NULL;
}
}
static void CurrentTimeCallback(const SSL *ssl, timeval *out_clock) {
*out_clock = *GetClock();
}
static int AlpnSelectCallback(SSL *ssl, const uint8_t **out, uint8_t *outlen,
const uint8_t *in, unsigned inlen, void *arg) {
if (GetTestState(ssl)->alpn_select_done) {
fprintf(stderr, "AlpnSelectCallback called after completion.\n");
exit(1);
}
GetTestState(ssl)->alpn_select_done = true;
const TestConfig *config = GetTestConfig(ssl);
if (config->decline_alpn) {
return SSL_TLSEXT_ERR_NOACK;
}
if (!config->expect_advertised_alpn.empty() &&
(config->expect_advertised_alpn.size() != inlen ||
OPENSSL_memcmp(config->expect_advertised_alpn.data(), in, inlen) !=
0)) {
fprintf(stderr, "bad ALPN select callback inputs.\n");
exit(1);
}
assert(config->select_alpn.empty() || !config->select_empty_alpn);
*out = (const uint8_t *)config->select_alpn.data();
*outlen = config->select_alpn.size();
return SSL_TLSEXT_ERR_OK;
}
static bool CheckVerifyCallback(SSL *ssl) {
const TestConfig *config = GetTestConfig(ssl);
if (!config->expect_ocsp_response.empty()) {
const uint8_t *data;
size_t len;
SSL_get0_ocsp_response(ssl, &data, &len);
if (len == 0) {
fprintf(stderr, "OCSP response not available in verify callback.\n");
return false;
}
}
if (GetTestState(ssl)->cert_verified) {
fprintf(stderr, "Certificate verified twice.\n");
return false;
}
return true;
}
static int CertVerifyCallback(X509_STORE_CTX *store_ctx, void *arg) {
SSL *ssl = (SSL *)X509_STORE_CTX_get_ex_data(
store_ctx, SSL_get_ex_data_X509_STORE_CTX_idx());
const TestConfig *config = GetTestConfig(ssl);
if (!CheckVerifyCallback(ssl)) {
return 0;
}
GetTestState(ssl)->cert_verified = true;
if (config->verify_fail) {
store_ctx->error = X509_V_ERR_APPLICATION_VERIFICATION;
return 0;
}
return 1;
}
bool LoadCertificate(bssl::UniquePtr<X509> *out_x509,
bssl::UniquePtr<STACK_OF(X509)> *out_chain,
const std::string &file) {
bssl::UniquePtr<BIO> bio(BIO_new(BIO_s_file()));
if (!bio || !BIO_read_filename(bio.get(), file.c_str())) {
return false;
}
out_x509->reset(PEM_read_bio_X509(bio.get(), nullptr, nullptr, nullptr));
if (!*out_x509) {
return false;
}
out_chain->reset(sk_X509_new_null());
if (!*out_chain) {
return false;
}
// Keep reading the certificate chain.
for (;;) {
bssl::UniquePtr<X509> cert(
PEM_read_bio_X509(bio.get(), nullptr, nullptr, nullptr));
if (!cert) {
break;
}
if (!bssl::PushToStack(out_chain->get(), std::move(cert))) {
return false;
}
}
uint32_t err = ERR_peek_last_error();
if (ERR_GET_LIB(err) != ERR_LIB_PEM ||
ERR_GET_REASON(err) != PEM_R_NO_START_LINE) {
return false;
}
ERR_clear_error();
return true;
}
bssl::UniquePtr<EVP_PKEY> LoadPrivateKey(const std::string &file) {
bssl::UniquePtr<BIO> bio(BIO_new(BIO_s_file()));
if (!bio || !BIO_read_filename(bio.get(), file.c_str())) {
return nullptr;
}
return bssl::UniquePtr<EVP_PKEY>(
PEM_read_bio_PrivateKey(bio.get(), NULL, NULL, NULL));
}
static bool GetCertificate(SSL *ssl, bssl::UniquePtr<X509> *out_x509,
bssl::UniquePtr<STACK_OF(X509)> *out_chain,
bssl::UniquePtr<EVP_PKEY> *out_pkey) {
const TestConfig *config = GetTestConfig(ssl);
if (!config->signing_prefs.empty()) {
std::vector<uint16_t> u16s(config->signing_prefs.begin(),
config->signing_prefs.end());
if (!SSL_set_signing_algorithm_prefs(ssl, u16s.data(), u16s.size())) {
return false;
}
}
if (!config->key_file.empty()) {
*out_pkey = LoadPrivateKey(config->key_file.c_str());
if (!*out_pkey) {
return false;
}
}
if (!config->cert_file.empty() &&
!LoadCertificate(out_x509, out_chain, config->cert_file.c_str())) {
return false;
}
if (!config->ocsp_response.empty() && !config->set_ocsp_in_callback &&
!SSL_set_ocsp_response(ssl, (const uint8_t *)config->ocsp_response.data(),
config->ocsp_response.size())) {
return false;
}
return true;
}
static bool FromHexDigit(uint8_t *out, char c) {
if ('0' <= c && c <= '9') {
*out = c - '0';
return true;
}
if ('a' <= c && c <= 'f') {
*out = c - 'a' + 10;
return true;
}
if ('A' <= c && c <= 'F') {
*out = c - 'A' + 10;
return true;
}
return false;
}
static bool HexDecode(std::string *out, const std::string &in) {
if ((in.size() & 1) != 0) {
return false;
}
std::unique_ptr<uint8_t[]> buf(new uint8_t[in.size() / 2]);
for (size_t i = 0; i < in.size() / 2; i++) {
uint8_t high, low;
if (!FromHexDigit(&high, in[i * 2]) || !FromHexDigit(&low, in[i * 2 + 1])) {
return false;
}
buf[i] = (high << 4) | low;
}
out->assign(reinterpret_cast<const char *>(buf.get()), in.size() / 2);
return true;
}
static std::vector<std::string> SplitParts(const std::string &in,
const char delim) {
std::vector<std::string> ret;
size_t start = 0;
for (size_t i = 0; i < in.size(); i++) {
if (in[i] == delim) {
ret.push_back(in.substr(start, i - start));
start = i + 1;
}
}
ret.push_back(in.substr(start, std::string::npos));
return ret;
}
static std::vector<std::string> DecodeHexStrings(
const std::string &hex_strings) {
std::vector<std::string> ret;
const std::vector<std::string> parts = SplitParts(hex_strings, ',');
for (const auto &part : parts) {
std::string binary;
if (!HexDecode(&binary, part)) {
fprintf(stderr, "Bad hex string: %s.\n", part.c_str());
return ret;
}
ret.push_back(binary);
}
return ret;
}
static bssl::UniquePtr<STACK_OF(X509_NAME)> DecodeHexX509Names(
const std::string &hex_names) {
const std::vector<std::string> der_names = DecodeHexStrings(hex_names);
bssl::UniquePtr<STACK_OF(X509_NAME)> ret(sk_X509_NAME_new_null());
if (!ret) {
return nullptr;
}
for (const auto &der_name : der_names) {
const uint8_t *const data =
reinterpret_cast<const uint8_t *>(der_name.data());
const uint8_t *derp = data;
bssl::UniquePtr<X509_NAME> name(
d2i_X509_NAME(nullptr, &derp, der_name.size()));
if (!name || derp != data + der_name.size()) {
fprintf(stderr, "Failed to parse X509_NAME.\n");
return nullptr;
}
if (!bssl::PushToStack(ret.get(), std::move(name))) {
return nullptr;
}
}
return ret;
}
static bool CheckPeerVerifyPrefs(SSL *ssl) {
const TestConfig *config = GetTestConfig(ssl);
if (!config->expect_peer_verify_prefs.empty()) {
const uint16_t *peer_sigalgs;
size_t num_peer_sigalgs =
SSL_get0_peer_verify_algorithms(ssl, &peer_sigalgs);
if (config->expect_peer_verify_prefs.size() != num_peer_sigalgs) {
fprintf(stderr,
"peer verify preferences length mismatch (got %zu, wanted %zu)\n",
num_peer_sigalgs, config->expect_peer_verify_prefs.size());
return false;
}
for (size_t i = 0; i < num_peer_sigalgs; i++) {
if (static_cast<int>(peer_sigalgs[i]) !=
config->expect_peer_verify_prefs[i]) {
fprintf(stderr,
"peer verify preference %zu mismatch (got %04x, wanted %04x\n",
i, peer_sigalgs[i], config->expect_peer_verify_prefs[i]);
return false;
}
}
}
return true;
}
static bool CheckCertificateRequest(SSL *ssl) {
const TestConfig *config = GetTestConfig(ssl);
if (!CheckPeerVerifyPrefs(ssl)) {
return false;
}
if (!config->expect_certificate_types.empty()) {
const uint8_t *certificate_types;
size_t certificate_types_len =
SSL_get0_certificate_types(ssl, &certificate_types);
if (certificate_types_len != config->expect_certificate_types.size() ||
OPENSSL_memcmp(certificate_types,
config->expect_certificate_types.data(),
certificate_types_len) != 0) {
fprintf(stderr, "certificate types mismatch.\n");
return false;
}
}
if (!config->expect_client_ca_list.empty()) {
bssl::UniquePtr<STACK_OF(X509_NAME)> expected =
DecodeHexX509Names(config->expect_client_ca_list);
const size_t num_expected = sk_X509_NAME_num(expected.get());
const STACK_OF(X509_NAME) *received = SSL_get_client_CA_list(ssl);
const size_t num_received = sk_X509_NAME_num(received);
if (num_received != num_expected) {
fprintf(stderr, "expected %u names in CertificateRequest but got %u.\n",
static_cast<unsigned>(num_expected),
static_cast<unsigned>(num_received));
return false;
}
for (size_t i = 0; i < num_received; i++) {
if (X509_NAME_cmp(sk_X509_NAME_value(received, i),
sk_X509_NAME_value(expected.get(), i)) != 0) {
fprintf(stderr, "names in CertificateRequest differ at index #%d.\n",
static_cast<unsigned>(i));
return false;
}
}
const STACK_OF(CRYPTO_BUFFER) *buffers = SSL_get0_server_requested_CAs(ssl);
if (sk_CRYPTO_BUFFER_num(buffers) != num_received) {
fprintf(stderr,
"Mismatch between SSL_get_server_requested_CAs and "
"SSL_get_client_CA_list.\n");
return false;
}
}
return true;
}
static int ClientCertCallback(SSL *ssl, X509 **out_x509, EVP_PKEY **out_pkey) {
if (!CheckCertificateRequest(ssl)) {
return -1;
}
if (GetTestConfig(ssl)->async && !GetTestState(ssl)->cert_ready) {
return -1;
}
bssl::UniquePtr<X509> x509;
bssl::UniquePtr<STACK_OF(X509)> chain;
bssl::UniquePtr<EVP_PKEY> pkey;
if (!GetCertificate(ssl, &x509, &chain, &pkey)) {
return -1;
}
// Return zero for no certificate.
if (!x509) {
return 0;
}
// Chains and asynchronous private keys are not supported with client_cert_cb.
*out_x509 = x509.release();
*out_pkey = pkey.release();
return 1;
}
static ssl_private_key_result_t AsyncPrivateKeySign(
SSL *ssl, uint8_t *out, size_t *out_len, size_t max_out,
uint16_t signature_algorithm, const uint8_t *in, size_t in_len) {
TestState *test_state = GetTestState(ssl);
if (!test_state->private_key_result.empty()) {
fprintf(stderr, "AsyncPrivateKeySign called with operation pending.\n");
abort();
}
if (EVP_PKEY_id(test_state->private_key.get()) !=
SSL_get_signature_algorithm_key_type(signature_algorithm)) {
fprintf(stderr, "Key type does not match signature algorithm.\n");
abort();
}
// Determine the hash.
const EVP_MD *md = SSL_get_signature_algorithm_digest(signature_algorithm);
bssl::ScopedEVP_MD_CTX ctx;
EVP_PKEY_CTX *pctx;
if (!EVP_DigestSignInit(ctx.get(), &pctx, md, nullptr,
test_state->private_key.get())) {
return ssl_private_key_failure;
}
// Configure additional signature parameters.
if (SSL_is_signature_algorithm_rsa_pss(signature_algorithm)) {
if (!EVP_PKEY_CTX_set_rsa_padding(pctx, RSA_PKCS1_PSS_PADDING) ||
!EVP_PKEY_CTX_set_rsa_pss_saltlen(pctx, -1 /* salt len = hash len */)) {
return ssl_private_key_failure;
}
}
// Write the signature into |test_state|.
size_t len = 0;
if (!EVP_DigestSign(ctx.get(), nullptr, &len, in, in_len)) {
return ssl_private_key_failure;
}
test_state->private_key_result.resize(len);
if (!EVP_DigestSign(ctx.get(), test_state->private_key_result.data(), &len,
in, in_len)) {
return ssl_private_key_failure;
}
test_state->private_key_result.resize(len);
// The signature will be released asynchronously in |AsyncPrivateKeyComplete|.