aff8c126fd
Reviewed-by: Matt Caswell <matt@openssl.org> (Merged from https://github.com/openssl/openssl/pull/2052)
1265 lines
37 KiB
C++
1265 lines
37 KiB
C++
/*
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* Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the OpenSSL license (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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#if !defined(__STDC_FORMAT_MACROS)
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#define __STDC_FORMAT_MACROS
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#endif
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#include <openssl/e_os2.h>
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#if !defined(OPENSSL_SYS_WINDOWS)
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#include <arpa/inet.h>
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#include <netinet/in.h>
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#include <netinet/tcp.h>
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#include <signal.h>
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#include <sys/socket.h>
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#include <sys/time.h>
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#include <unistd.h>
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#else
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#include <io.h>
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OPENSSL_MSVC_PRAGMA(warning(push, 3))
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#include <winsock2.h>
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#include <ws2tcpip.h>
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OPENSSL_MSVC_PRAGMA(warning(pop))
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OPENSSL_MSVC_PRAGMA(comment(lib, "Ws2_32.lib"))
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#endif
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#include <assert.h>
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#include <inttypes.h>
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#include <string.h>
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#include <openssl/bio.h>
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#include <openssl/buffer.h>
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#include <openssl/bn.h>
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#include <openssl/crypto.h>
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#include <openssl/dh.h>
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#include <openssl/err.h>
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#include <openssl/evp.h>
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#include <openssl/hmac.h>
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#include <openssl/objects.h>
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#include <openssl/rand.h>
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#include <openssl/ssl.h>
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#include <openssl/x509.h>
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#include <memory>
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#include <string>
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#include <vector>
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#include "async_bio.h"
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#include "packeted_bio.h"
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#include "test_config.h"
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namespace bssl {
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#if !defined(OPENSSL_SYS_WINDOWS)
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static int closesocket(int sock) {
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return close(sock);
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}
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static void PrintSocketError(const char *func) {
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perror(func);
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}
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#else
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static void PrintSocketError(const char *func) {
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fprintf(stderr, "%s: %d\n", func, WSAGetLastError());
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}
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#endif
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static int Usage(const char *program) {
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fprintf(stderr, "Usage: %s [flags...]\n", program);
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return 1;
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}
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struct TestState {
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// async_bio is async BIO which pauses reads and writes.
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BIO *async_bio = nullptr;
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// packeted_bio is the packeted BIO which simulates read timeouts.
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BIO *packeted_bio = nullptr;
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bool cert_ready = false;
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bool handshake_done = false;
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// private_key is the underlying private key used when testing custom keys.
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bssl::UniquePtr<EVP_PKEY> private_key;
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bool got_new_session = false;
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bssl::UniquePtr<SSL_SESSION> new_session;
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bool ticket_decrypt_done = false;
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bool alpn_select_done = false;
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};
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static void TestStateExFree(void *parent, void *ptr, CRYPTO_EX_DATA *ad,
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int index, long argl, void *argp) {
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delete ((TestState *)ptr);
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}
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static int g_config_index = 0;
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static int g_state_index = 0;
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static bool SetTestConfig(SSL *ssl, const TestConfig *config) {
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return SSL_set_ex_data(ssl, g_config_index, (void *)config) == 1;
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}
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static const TestConfig *GetTestConfig(const SSL *ssl) {
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return (const TestConfig *)SSL_get_ex_data(ssl, g_config_index);
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}
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static bool SetTestState(SSL *ssl, std::unique_ptr<TestState> state) {
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// |SSL_set_ex_data| takes ownership of |state| only on success.
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if (SSL_set_ex_data(ssl, g_state_index, state.get()) == 1) {
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state.release();
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return true;
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}
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return false;
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}
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static TestState *GetTestState(const SSL *ssl) {
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return (TestState *)SSL_get_ex_data(ssl, g_state_index);
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}
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static bssl::UniquePtr<X509> LoadCertificate(const std::string &file) {
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bssl::UniquePtr<BIO> bio(BIO_new(BIO_s_file()));
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if (!bio || !BIO_read_filename(bio.get(), file.c_str())) {
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return nullptr;
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}
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return bssl::UniquePtr<X509>(PEM_read_bio_X509(bio.get(), NULL, NULL, NULL));
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}
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static bssl::UniquePtr<EVP_PKEY> LoadPrivateKey(const std::string &file) {
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bssl::UniquePtr<BIO> bio(BIO_new(BIO_s_file()));
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if (!bio || !BIO_read_filename(bio.get(), file.c_str())) {
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return nullptr;
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}
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return bssl::UniquePtr<EVP_PKEY>(
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PEM_read_bio_PrivateKey(bio.get(), NULL, NULL, NULL));
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}
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template<typename T>
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struct Free {
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void operator()(T *buf) {
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free(buf);
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}
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};
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static bool GetCertificate(SSL *ssl, bssl::UniquePtr<X509> *out_x509,
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bssl::UniquePtr<EVP_PKEY> *out_pkey) {
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const TestConfig *config = GetTestConfig(ssl);
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if (!config->key_file.empty()) {
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*out_pkey = LoadPrivateKey(config->key_file.c_str());
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if (!*out_pkey) {
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return false;
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}
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}
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if (!config->cert_file.empty()) {
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*out_x509 = LoadCertificate(config->cert_file.c_str());
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if (!*out_x509) {
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return false;
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}
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}
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return true;
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}
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static bool InstallCertificate(SSL *ssl) {
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bssl::UniquePtr<X509> x509;
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bssl::UniquePtr<EVP_PKEY> pkey;
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if (!GetCertificate(ssl, &x509, &pkey)) {
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return false;
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}
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if (pkey && !SSL_use_PrivateKey(ssl, pkey.get())) {
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return false;
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}
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if (x509 && !SSL_use_certificate(ssl, x509.get())) {
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return false;
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}
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return true;
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}
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static int ClientCertCallback(SSL *ssl, X509 **out_x509, EVP_PKEY **out_pkey) {
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if (GetTestConfig(ssl)->async && !GetTestState(ssl)->cert_ready) {
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return -1;
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}
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bssl::UniquePtr<X509> x509;
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bssl::UniquePtr<EVP_PKEY> pkey;
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if (!GetCertificate(ssl, &x509, &pkey)) {
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return -1;
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}
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// Return zero for no certificate.
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if (!x509) {
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return 0;
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}
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// Asynchronous private keys are not supported with client_cert_cb.
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*out_x509 = x509.release();
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*out_pkey = pkey.release();
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return 1;
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}
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static int VerifySucceed(X509_STORE_CTX *store_ctx, void *arg) {
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return 1;
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}
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static int VerifyFail(X509_STORE_CTX *store_ctx, void *arg) {
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X509_STORE_CTX_set_error(store_ctx, X509_V_ERR_APPLICATION_VERIFICATION);
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return 0;
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}
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static int NextProtosAdvertisedCallback(SSL *ssl, const uint8_t **out,
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unsigned int *out_len, void *arg) {
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const TestConfig *config = GetTestConfig(ssl);
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if (config->advertise_npn.empty()) {
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return SSL_TLSEXT_ERR_NOACK;
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}
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*out = (const uint8_t*)config->advertise_npn.data();
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*out_len = config->advertise_npn.size();
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return SSL_TLSEXT_ERR_OK;
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}
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static int NextProtoSelectCallback(SSL* ssl, uint8_t** out, uint8_t* outlen,
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const uint8_t* in, unsigned inlen, void* arg) {
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const TestConfig *config = GetTestConfig(ssl);
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if (config->select_next_proto.empty()) {
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return SSL_TLSEXT_ERR_NOACK;
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}
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*out = (uint8_t*)config->select_next_proto.data();
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*outlen = config->select_next_proto.size();
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return SSL_TLSEXT_ERR_OK;
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}
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static int AlpnSelectCallback(SSL* ssl, const uint8_t** out, uint8_t* outlen,
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const uint8_t* in, unsigned inlen, void* arg) {
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if (GetTestState(ssl)->alpn_select_done) {
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fprintf(stderr, "AlpnSelectCallback called after completion.\n");
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exit(1);
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}
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GetTestState(ssl)->alpn_select_done = true;
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const TestConfig *config = GetTestConfig(ssl);
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if (config->decline_alpn) {
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return SSL_TLSEXT_ERR_NOACK;
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}
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if (!config->expected_advertised_alpn.empty() &&
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(config->expected_advertised_alpn.size() != inlen ||
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memcmp(config->expected_advertised_alpn.data(),
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in, inlen) != 0)) {
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fprintf(stderr, "bad ALPN select callback inputs\n");
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exit(1);
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}
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*out = (const uint8_t*)config->select_alpn.data();
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*outlen = config->select_alpn.size();
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return SSL_TLSEXT_ERR_OK;
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}
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static unsigned PskClientCallback(SSL *ssl, const char *hint,
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char *out_identity,
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unsigned max_identity_len,
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uint8_t *out_psk, unsigned max_psk_len) {
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const TestConfig *config = GetTestConfig(ssl);
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if (config->psk_identity.empty()) {
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if (hint != nullptr) {
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fprintf(stderr, "Server PSK hint was non-null.\n");
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return 0;
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}
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} else if (hint == nullptr ||
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strcmp(hint, config->psk_identity.c_str()) != 0) {
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fprintf(stderr, "Server PSK hint did not match.\n");
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return 0;
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}
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// Account for the trailing '\0' for the identity.
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if (config->psk_identity.size() >= max_identity_len ||
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config->psk.size() > max_psk_len) {
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fprintf(stderr, "PSK buffers too small\n");
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return 0;
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}
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BUF_strlcpy(out_identity, config->psk_identity.c_str(),
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max_identity_len);
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memcpy(out_psk, config->psk.data(), config->psk.size());
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return config->psk.size();
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}
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static unsigned PskServerCallback(SSL *ssl, const char *identity,
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uint8_t *out_psk, unsigned max_psk_len) {
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const TestConfig *config = GetTestConfig(ssl);
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if (strcmp(identity, config->psk_identity.c_str()) != 0) {
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fprintf(stderr, "Client PSK identity did not match.\n");
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return 0;
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}
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if (config->psk.size() > max_psk_len) {
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fprintf(stderr, "PSK buffers too small\n");
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return 0;
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}
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memcpy(out_psk, config->psk.data(), config->psk.size());
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return config->psk.size();
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}
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static int CertCallback(SSL *ssl, void *arg) {
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const TestConfig *config = GetTestConfig(ssl);
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// Check the CertificateRequest metadata is as expected.
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//
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// TODO(davidben): Test |SSL_get_client_CA_list|.
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if (!SSL_is_server(ssl) &&
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!config->expected_certificate_types.empty()) {
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const uint8_t *certificate_types;
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size_t certificate_types_len =
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SSL_get0_certificate_types(ssl, &certificate_types);
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if (certificate_types_len != config->expected_certificate_types.size() ||
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memcmp(certificate_types,
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config->expected_certificate_types.data(),
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certificate_types_len) != 0) {
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fprintf(stderr, "certificate types mismatch\n");
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return 0;
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}
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}
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// The certificate will be installed via other means.
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if (!config->async ||
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config->use_old_client_cert_callback) {
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return 1;
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}
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if (!GetTestState(ssl)->cert_ready) {
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return -1;
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}
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if (!InstallCertificate(ssl)) {
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return 0;
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}
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return 1;
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}
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static void InfoCallback(const SSL *ssl, int type, int val) {
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if (type == SSL_CB_HANDSHAKE_DONE) {
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if (GetTestConfig(ssl)->handshake_never_done) {
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fprintf(stderr, "Handshake unexpectedly completed.\n");
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// Abort before any expected error code is printed, to ensure the overall
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// test fails.
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abort();
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}
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GetTestState(ssl)->handshake_done = true;
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// Callbacks may be called again on a new handshake.
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GetTestState(ssl)->ticket_decrypt_done = false;
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GetTestState(ssl)->alpn_select_done = false;
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}
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}
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static int NewSessionCallback(SSL *ssl, SSL_SESSION *session) {
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GetTestState(ssl)->got_new_session = true;
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GetTestState(ssl)->new_session.reset(session);
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return 1;
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}
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static int TicketKeyCallback(SSL *ssl, uint8_t *key_name, uint8_t *iv,
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EVP_CIPHER_CTX *ctx, HMAC_CTX *hmac_ctx,
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int encrypt) {
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if (!encrypt) {
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if (GetTestState(ssl)->ticket_decrypt_done) {
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fprintf(stderr, "TicketKeyCallback called after completion.\n");
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return -1;
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}
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GetTestState(ssl)->ticket_decrypt_done = true;
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}
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// This is just test code, so use the all-zeros key.
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static const uint8_t kZeros[16] = {0};
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if (encrypt) {
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memcpy(key_name, kZeros, sizeof(kZeros));
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RAND_bytes(iv, 16);
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} else if (memcmp(key_name, kZeros, 16) != 0) {
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return 0;
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}
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if (!HMAC_Init_ex(hmac_ctx, kZeros, sizeof(kZeros), EVP_sha256(), NULL) ||
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!EVP_CipherInit_ex(ctx, EVP_aes_128_cbc(), NULL, kZeros, iv, encrypt)) {
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return -1;
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}
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if (!encrypt) {
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return GetTestConfig(ssl)->renew_ticket ? 2 : 1;
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}
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return 1;
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}
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// kCustomExtensionValue is the extension value that the custom extension
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// callbacks will add.
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static const uint16_t kCustomExtensionValue = 1234;
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static void *const kCustomExtensionAddArg =
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reinterpret_cast<void *>(kCustomExtensionValue);
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static void *const kCustomExtensionParseArg =
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reinterpret_cast<void *>(kCustomExtensionValue + 1);
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static const char kCustomExtensionContents[] = "custom extension";
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static int CustomExtensionAddCallback(SSL *ssl, unsigned extension_value,
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const uint8_t **out, size_t *out_len,
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int *out_alert_value, void *add_arg) {
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if (extension_value != kCustomExtensionValue ||
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add_arg != kCustomExtensionAddArg) {
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abort();
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}
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if (GetTestConfig(ssl)->custom_extension_skip) {
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return 0;
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}
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if (GetTestConfig(ssl)->custom_extension_fail_add) {
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return -1;
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}
|
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*out = reinterpret_cast<const uint8_t*>(kCustomExtensionContents);
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*out_len = sizeof(kCustomExtensionContents) - 1;
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return 1;
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}
|
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|
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static void CustomExtensionFreeCallback(SSL *ssl, unsigned extension_value,
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const uint8_t *out, void *add_arg) {
|
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if (extension_value != kCustomExtensionValue ||
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add_arg != kCustomExtensionAddArg ||
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out != reinterpret_cast<const uint8_t *>(kCustomExtensionContents)) {
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abort();
|
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}
|
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}
|
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|
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static int CustomExtensionParseCallback(SSL *ssl, unsigned extension_value,
|
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const uint8_t *contents,
|
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size_t contents_len,
|
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int *out_alert_value, void *parse_arg) {
|
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if (extension_value != kCustomExtensionValue ||
|
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parse_arg != kCustomExtensionParseArg) {
|
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abort();
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}
|
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|
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if (contents_len != sizeof(kCustomExtensionContents) - 1 ||
|
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memcmp(contents, kCustomExtensionContents, contents_len) != 0) {
|
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*out_alert_value = SSL_AD_DECODE_ERROR;
|
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return 0;
|
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}
|
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|
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return 1;
|
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}
|
||
|
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// Connect returns a new socket connected to localhost on |port| or -1 on
|
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// error.
|
||
static int Connect(uint16_t port) {
|
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int sock = socket(AF_INET, SOCK_STREAM, 0);
|
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if (sock == -1) {
|
||
PrintSocketError("socket");
|
||
return -1;
|
||
}
|
||
int nodelay = 1;
|
||
if (setsockopt(sock, IPPROTO_TCP, TCP_NODELAY,
|
||
reinterpret_cast<const char*>(&nodelay), sizeof(nodelay)) != 0) {
|
||
PrintSocketError("setsockopt");
|
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closesocket(sock);
|
||
return -1;
|
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}
|
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sockaddr_in sin;
|
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memset(&sin, 0, sizeof(sin));
|
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sin.sin_family = AF_INET;
|
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sin.sin_port = htons(port);
|
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if (!inet_pton(AF_INET, "127.0.0.1", &sin.sin_addr)) {
|
||
PrintSocketError("inet_pton");
|
||
closesocket(sock);
|
||
return -1;
|
||
}
|
||
if (connect(sock, reinterpret_cast<const sockaddr*>(&sin),
|
||
sizeof(sin)) != 0) {
|
||
PrintSocketError("connect");
|
||
closesocket(sock);
|
||
return -1;
|
||
}
|
||
return sock;
|
||
}
|
||
|
||
class SocketCloser {
|
||
public:
|
||
explicit SocketCloser(int sock) : sock_(sock) {}
|
||
~SocketCloser() {
|
||
// Half-close and drain the socket before releasing it. This seems to be
|
||
// necessary for graceful shutdown on Windows. It will also avoid write
|
||
// failures in the test runner.
|
||
#if defined(OPENSSL_SYS_WINDOWS)
|
||
shutdown(sock_, SD_SEND);
|
||
#else
|
||
shutdown(sock_, SHUT_WR);
|
||
#endif
|
||
while (true) {
|
||
char buf[1024];
|
||
if (recv(sock_, buf, sizeof(buf), 0) <= 0) {
|
||
break;
|
||
}
|
||
}
|
||
closesocket(sock_);
|
||
}
|
||
|
||
private:
|
||
const int sock_;
|
||
};
|
||
|
||
static bssl::UniquePtr<SSL_CTX> SetupCtx(const TestConfig *config) {
|
||
bssl::UniquePtr<SSL_CTX> ssl_ctx(SSL_CTX_new(
|
||
config->is_dtls ? DTLS_method() : TLS_method()));
|
||
if (!ssl_ctx) {
|
||
return nullptr;
|
||
}
|
||
|
||
SSL_CTX_set_security_level(ssl_ctx.get(), 0);
|
||
#if 0
|
||
/* Disabled for now until we have some TLS1.3 support */
|
||
// Enable TLS 1.3 for tests.
|
||
if (!config->is_dtls &&
|
||
!SSL_CTX_set_max_proto_version(ssl_ctx.get(), TLS1_3_VERSION)) {
|
||
return nullptr;
|
||
}
|
||
#endif
|
||
|
||
std::string cipher_list = "ALL";
|
||
if (!config->cipher.empty()) {
|
||
cipher_list = config->cipher;
|
||
SSL_CTX_set_options(ssl_ctx.get(), SSL_OP_CIPHER_SERVER_PREFERENCE);
|
||
}
|
||
if (!SSL_CTX_set_cipher_list(ssl_ctx.get(), cipher_list.c_str())) {
|
||
return nullptr;
|
||
}
|
||
|
||
DH *tmpdh;
|
||
|
||
if (config->use_sparse_dh_prime) {
|
||
BIGNUM *p, *g;
|
||
p = BN_new();
|
||
g = BN_new();
|
||
tmpdh = DH_new();
|
||
if (p == NULL || g == NULL || tmpdh == NULL) {
|
||
BN_free(p);
|
||
BN_free(g);
|
||
DH_free(tmpdh);
|
||
return nullptr;
|
||
}
|
||
// This prime number is 2^1024 + 643 – a value just above a power of two.
|
||
// Because of its form, values modulo it are essentially certain to be one
|
||
// byte shorter. This is used to test padding of these values.
|
||
if (BN_hex2bn(
|
||
&p,
|
||
"1000000000000000000000000000000000000000000000000000000000000000"
|
||
"0000000000000000000000000000000000000000000000000000000000000000"
|
||
"0000000000000000000000000000000000000000000000000000000000000000"
|
||
"0000000000000000000000000000000000000000000000000000000000000028"
|
||
"3") == 0 ||
|
||
!BN_set_word(g, 2)) {
|
||
BN_free(p);
|
||
BN_free(g);
|
||
DH_free(tmpdh);
|
||
return nullptr;
|
||
}
|
||
DH_set0_pqg(tmpdh, p, NULL, g);
|
||
} else {
|
||
tmpdh = DH_get_2048_256();
|
||
}
|
||
|
||
bssl::UniquePtr<DH> dh(tmpdh);
|
||
|
||
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);
|
||
|
||
if (config->use_old_client_cert_callback) {
|
||
SSL_CTX_set_client_cert_cb(ssl_ctx.get(), ClientCertCallback);
|
||
}
|
||
|
||
SSL_CTX_set_npn_advertised_cb(
|
||
ssl_ctx.get(), NextProtosAdvertisedCallback, NULL);
|
||
if (!config->select_next_proto.empty()) {
|
||
SSL_CTX_set_next_proto_select_cb(ssl_ctx.get(), NextProtoSelectCallback,
|
||
NULL);
|
||
}
|
||
|
||
if (!config->select_alpn.empty() || config->decline_alpn) {
|
||
SSL_CTX_set_alpn_select_cb(ssl_ctx.get(), AlpnSelectCallback, NULL);
|
||
}
|
||
|
||
SSL_CTX_set_info_callback(ssl_ctx.get(), InfoCallback);
|
||
SSL_CTX_sess_set_new_cb(ssl_ctx.get(), NewSessionCallback);
|
||
|
||
if (config->use_ticket_callback) {
|
||
SSL_CTX_set_tlsext_ticket_key_cb(ssl_ctx.get(), TicketKeyCallback);
|
||
}
|
||
|
||
if (config->enable_client_custom_extension &&
|
||
!SSL_CTX_add_client_custom_ext(
|
||
ssl_ctx.get(), kCustomExtensionValue, CustomExtensionAddCallback,
|
||
CustomExtensionFreeCallback, kCustomExtensionAddArg,
|
||
CustomExtensionParseCallback, kCustomExtensionParseArg)) {
|
||
return nullptr;
|
||
}
|
||
|
||
if (config->enable_server_custom_extension &&
|
||
!SSL_CTX_add_server_custom_ext(
|
||
ssl_ctx.get(), kCustomExtensionValue, CustomExtensionAddCallback,
|
||
CustomExtensionFreeCallback, kCustomExtensionAddArg,
|
||
CustomExtensionParseCallback, kCustomExtensionParseArg)) {
|
||
return nullptr;
|
||
}
|
||
|
||
if (config->verify_fail) {
|
||
SSL_CTX_set_cert_verify_callback(ssl_ctx.get(), VerifyFail, NULL);
|
||
} else {
|
||
SSL_CTX_set_cert_verify_callback(ssl_ctx.get(), VerifySucceed, NULL);
|
||
}
|
||
|
||
if (config->use_null_client_ca_list) {
|
||
SSL_CTX_set_client_CA_list(ssl_ctx.get(), nullptr);
|
||
}
|
||
|
||
return ssl_ctx;
|
||
}
|
||
|
||
// RetryAsync is called after a failed operation on |ssl| with return code
|
||
// |ret|. If the operation should be retried, it simulates one asynchronous
|
||
// event and returns true. Otherwise it returns false.
|
||
static bool RetryAsync(SSL *ssl, int ret) {
|
||
// No error; don't retry.
|
||
if (ret >= 0) {
|
||
return false;
|
||
}
|
||
|
||
TestState *test_state = GetTestState(ssl);
|
||
assert(GetTestConfig(ssl)->async);
|
||
|
||
if (test_state->packeted_bio != nullptr &&
|
||
PacketedBioAdvanceClock(test_state->packeted_bio)) {
|
||
// The DTLS retransmit logic silently ignores write failures. So the test
|
||
// may progress, allow writes through synchronously.
|
||
AsyncBioEnforceWriteQuota(test_state->async_bio, false);
|
||
int timeout_ret = DTLSv1_handle_timeout(ssl);
|
||
AsyncBioEnforceWriteQuota(test_state->async_bio, true);
|
||
|
||
if (timeout_ret < 0) {
|
||
fprintf(stderr, "Error retransmitting.\n");
|
||
return false;
|
||
}
|
||
return true;
|
||
}
|
||
|
||
// 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:
|
||
AsyncBioAllowRead(test_state->async_bio, 1);
|
||
return true;
|
||
case SSL_ERROR_WANT_WRITE:
|
||
AsyncBioAllowWrite(test_state->async_bio, 1);
|
||
return true;
|
||
case SSL_ERROR_WANT_X509_LOOKUP:
|
||
test_state->cert_ready = true;
|
||
return true;
|
||
default:
|
||
return false;
|
||
}
|
||
}
|
||
|
||
// DoRead reads from |ssl|, resolving any asynchronous operations. It returns
|
||
// the result value of the final |SSL_read| call.
|
||
static int DoRead(SSL *ssl, uint8_t *out, size_t max_out) {
|
||
const TestConfig *config = GetTestConfig(ssl);
|
||
TestState *test_state = GetTestState(ssl);
|
||
int ret;
|
||
do {
|
||
if (config->async) {
|
||
// The DTLS retransmit logic silently ignores write failures. So the test
|
||
// may progress, allow writes through synchronously. |SSL_read| may
|
||
// trigger a retransmit, so disconnect the write quota.
|
||
AsyncBioEnforceWriteQuota(test_state->async_bio, false);
|
||
}
|
||
ret = config->peek_then_read ? SSL_peek(ssl, out, max_out)
|
||
: SSL_read(ssl, out, max_out);
|
||
if (config->async) {
|
||
AsyncBioEnforceWriteQuota(test_state->async_bio, true);
|
||
}
|
||
} while (config->async && RetryAsync(ssl, ret));
|
||
|
||
if (config->peek_then_read && ret > 0) {
|
||
std::unique_ptr<uint8_t[]> buf(new uint8_t[static_cast<size_t>(ret)]);
|
||
|
||
// SSL_peek should synchronously return the same data.
|
||
int ret2 = SSL_peek(ssl, buf.get(), ret);
|
||
if (ret2 != ret ||
|
||
memcmp(buf.get(), out, ret) != 0) {
|
||
fprintf(stderr, "First and second SSL_peek did not match.\n");
|
||
return -1;
|
||
}
|
||
|
||
// SSL_read should synchronously return the same data and consume it.
|
||
ret2 = SSL_read(ssl, buf.get(), ret);
|
||
if (ret2 != ret ||
|
||
memcmp(buf.get(), out, ret) != 0) {
|
||
fprintf(stderr, "SSL_peek and SSL_read did not match.\n");
|
||
return -1;
|
||
}
|
||
}
|
||
|
||
return ret;
|
||
}
|
||
|
||
// WriteAll writes |in_len| bytes from |in| to |ssl|, resolving any asynchronous
|
||
// operations. It returns the result of the final |SSL_write| call.
|
||
static int WriteAll(SSL *ssl, const uint8_t *in, size_t in_len) {
|
||
const TestConfig *config = GetTestConfig(ssl);
|
||
int ret;
|
||
do {
|
||
ret = SSL_write(ssl, in, in_len);
|
||
if (ret > 0) {
|
||
in += ret;
|
||
in_len -= ret;
|
||
}
|
||
} while ((config->async && RetryAsync(ssl, ret)) || (ret > 0 && in_len > 0));
|
||
return ret;
|
||
}
|
||
|
||
// DoShutdown calls |SSL_shutdown|, resolving any asynchronous operations. It
|
||
// returns the result of the final |SSL_shutdown| call.
|
||
static int DoShutdown(SSL *ssl) {
|
||
const TestConfig *config = GetTestConfig(ssl);
|
||
int ret;
|
||
do {
|
||
ret = SSL_shutdown(ssl);
|
||
} while (config->async && RetryAsync(ssl, ret));
|
||
return ret;
|
||
}
|
||
|
||
static uint16_t GetProtocolVersion(const SSL *ssl) {
|
||
uint16_t version = SSL_version(ssl);
|
||
if (!SSL_is_dtls(ssl)) {
|
||
return version;
|
||
}
|
||
return 0x0201 + ~version;
|
||
}
|
||
|
||
// CheckHandshakeProperties checks, immediately after |ssl| completes its
|
||
// initial handshake (or False Starts), whether all the properties are
|
||
// consistent with the test configuration and invariants.
|
||
static bool CheckHandshakeProperties(SSL *ssl, bool is_resume) {
|
||
const TestConfig *config = GetTestConfig(ssl);
|
||
|
||
if (SSL_get_current_cipher(ssl) == nullptr) {
|
||
fprintf(stderr, "null cipher after handshake\n");
|
||
return false;
|
||
}
|
||
|
||
if (is_resume &&
|
||
(!!SSL_session_reused(ssl) == config->expect_session_miss)) {
|
||
fprintf(stderr, "session was%s reused\n",
|
||
SSL_session_reused(ssl) ? "" : " not");
|
||
return false;
|
||
}
|
||
|
||
if (!GetTestState(ssl)->handshake_done) {
|
||
fprintf(stderr, "handshake was not completed\n");
|
||
return false;
|
||
}
|
||
|
||
if (!config->is_server) {
|
||
bool expect_new_session =
|
||
!config->expect_no_session &&
|
||
(!SSL_session_reused(ssl) || config->expect_ticket_renewal) &&
|
||
// Session tickets are sent post-handshake in TLS 1.3.
|
||
GetProtocolVersion(ssl) < TLS1_3_VERSION;
|
||
if (expect_new_session != GetTestState(ssl)->got_new_session) {
|
||
fprintf(stderr,
|
||
"new session was%s cached, but we expected the opposite\n",
|
||
GetTestState(ssl)->got_new_session ? "" : " not");
|
||
return false;
|
||
}
|
||
}
|
||
|
||
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 false;
|
||
}
|
||
}
|
||
|
||
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 false;
|
||
}
|
||
}
|
||
|
||
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 false;
|
||
}
|
||
}
|
||
|
||
if (config->expect_extended_master_secret) {
|
||
if (!SSL_get_extms_support(ssl)) {
|
||
fprintf(stderr, "No EMS for connection when expected");
|
||
return false;
|
||
}
|
||
}
|
||
|
||
if (config->expect_verify_result) {
|
||
int expected_verify_result = config->verify_fail ?
|
||
X509_V_ERR_APPLICATION_VERIFICATION :
|
||
X509_V_OK;
|
||
|
||
if (SSL_get_verify_result(ssl) != expected_verify_result) {
|
||
fprintf(stderr, "Wrong certificate verification result\n");
|
||
return false;
|
||
}
|
||
}
|
||
|
||
if (!config->psk.empty()) {
|
||
if (SSL_get_peer_cert_chain(ssl) != nullptr) {
|
||
fprintf(stderr, "Received peer certificate on a PSK cipher.\n");
|
||
return false;
|
||
}
|
||
} else if (!config->is_server || config->require_any_client_certificate) {
|
||
if (SSL_get_peer_cert_chain(ssl) == nullptr) {
|
||
fprintf(stderr, "Received no peer certificate but expected one.\n");
|
||
return false;
|
||
}
|
||
}
|
||
|
||
return true;
|
||
}
|
||
|
||
// DoExchange runs a test SSL exchange against the peer. On success, it returns
|
||
// true and sets |*out_session| to the negotiated SSL session. If the test is a
|
||
// resumption attempt, |is_resume| is true and |session| is the session from the
|
||
// previous exchange.
|
||
static bool DoExchange(bssl::UniquePtr<SSL_SESSION> *out_session,
|
||
SSL_CTX *ssl_ctx, const TestConfig *config,
|
||
bool is_resume, SSL_SESSION *session) {
|
||
bssl::UniquePtr<SSL> ssl(SSL_new(ssl_ctx));
|
||
if (!ssl) {
|
||
return false;
|
||
}
|
||
|
||
if (!SetTestConfig(ssl.get(), config) ||
|
||
!SetTestState(ssl.get(), std::unique_ptr<TestState>(new TestState))) {
|
||
return false;
|
||
}
|
||
|
||
if (config->fallback_scsv &&
|
||
!SSL_set_mode(ssl.get(), SSL_MODE_SEND_FALLBACK_SCSV)) {
|
||
return false;
|
||
}
|
||
// Install the certificate synchronously if nothing else will handle it.
|
||
if (!config->use_old_client_cert_callback &&
|
||
!config->async &&
|
||
!InstallCertificate(ssl.get())) {
|
||
return false;
|
||
}
|
||
SSL_set_cert_cb(ssl.get(), CertCallback, nullptr);
|
||
if (config->require_any_client_certificate) {
|
||
SSL_set_verify(ssl.get(), SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT,
|
||
NULL);
|
||
}
|
||
if (config->verify_peer) {
|
||
SSL_set_verify(ssl.get(), SSL_VERIFY_PEER, NULL);
|
||
}
|
||
if (config->partial_write) {
|
||
SSL_set_mode(ssl.get(), SSL_MODE_ENABLE_PARTIAL_WRITE);
|
||
}
|
||
if (config->no_tls13) {
|
||
SSL_set_options(ssl.get(), SSL_OP_NO_TLSv1_3);
|
||
}
|
||
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->host_name.empty() &&
|
||
!SSL_set_tlsext_host_name(ssl.get(), config->host_name.c_str())) {
|
||
return false;
|
||
}
|
||
if (!config->advertise_alpn.empty() &&
|
||
SSL_set_alpn_protos(ssl.get(),
|
||
(const uint8_t *)config->advertise_alpn.data(),
|
||
config->advertise_alpn.size()) != 0) {
|
||
return false;
|
||
}
|
||
if (!config->psk.empty()) {
|
||
SSL_set_psk_client_callback(ssl.get(), PskClientCallback);
|
||
SSL_set_psk_server_callback(ssl.get(), PskServerCallback);
|
||
}
|
||
if (!config->psk_identity.empty() &&
|
||
!SSL_use_psk_identity_hint(ssl.get(), config->psk_identity.c_str())) {
|
||
return false;
|
||
}
|
||
if (!config->srtp_profiles.empty() &&
|
||
SSL_set_tlsext_use_srtp(ssl.get(), config->srtp_profiles.c_str())) {
|
||
return false;
|
||
}
|
||
if (config->min_version != 0 &&
|
||
!SSL_set_min_proto_version(ssl.get(), (uint16_t)config->min_version)) {
|
||
return false;
|
||
}
|
||
if (config->max_version != 0 &&
|
||
!SSL_set_max_proto_version(ssl.get(), (uint16_t)config->max_version)) {
|
||
return false;
|
||
}
|
||
if (config->mtu != 0) {
|
||
SSL_set_options(ssl.get(), SSL_OP_NO_QUERY_MTU);
|
||
SSL_set_mtu(ssl.get(), config->mtu);
|
||
}
|
||
if (config->renegotiate_freely) {
|
||
// This is always on for OpenSSL.
|
||
}
|
||
if (!config->check_close_notify) {
|
||
SSL_set_quiet_shutdown(ssl.get(), 1);
|
||
}
|
||
if (config->p384_only) {
|
||
int nid = NID_secp384r1;
|
||
if (!SSL_set1_curves(ssl.get(), &nid, 1)) {
|
||
return false;
|
||
}
|
||
}
|
||
if (config->enable_all_curves) {
|
||
static const int kAllCurves[] = {
|
||
NID_X9_62_prime256v1, NID_secp384r1, NID_secp521r1, NID_X25519,
|
||
};
|
||
if (!SSL_set1_curves(ssl.get(), kAllCurves,
|
||
OPENSSL_ARRAY_SIZE(kAllCurves))) {
|
||
return false;
|
||
}
|
||
}
|
||
if (config->max_cert_list > 0) {
|
||
SSL_set_max_cert_list(ssl.get(), config->max_cert_list);
|
||
}
|
||
|
||
int sock = Connect(config->port);
|
||
if (sock == -1) {
|
||
return false;
|
||
}
|
||
SocketCloser closer(sock);
|
||
|
||
bssl::UniquePtr<BIO> bio(BIO_new_socket(sock, BIO_NOCLOSE));
|
||
if (!bio) {
|
||
return false;
|
||
}
|
||
if (config->is_dtls) {
|
||
bssl::UniquePtr<BIO> packeted = PacketedBioCreate(!config->async);
|
||
if (!packeted) {
|
||
return false;
|
||
}
|
||
GetTestState(ssl.get())->packeted_bio = packeted.get();
|
||
BIO_push(packeted.get(), bio.release());
|
||
bio = std::move(packeted);
|
||
}
|
||
if (config->async) {
|
||
bssl::UniquePtr<BIO> async_scoped =
|
||
config->is_dtls ? AsyncBioCreateDatagram() : AsyncBioCreate();
|
||
if (!async_scoped) {
|
||
return false;
|
||
}
|
||
BIO_push(async_scoped.get(), bio.release());
|
||
GetTestState(ssl.get())->async_bio = 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 (!config->is_server) {
|
||
if (SSL_set_session(ssl.get(), session) != 1) {
|
||
return false;
|
||
}
|
||
}
|
||
}
|
||
|
||
#if 0
|
||
// KNOWN BUG: OpenSSL's SSL_get_current_cipher behaves incorrectly when
|
||
// offering resumption.
|
||
if (SSL_get_current_cipher(ssl.get()) != nullptr) {
|
||
fprintf(stderr, "non-null cipher before handshake\n");
|
||
return false;
|
||
}
|
||
#endif
|
||
|
||
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 && RetryAsync(ssl.get(), ret));
|
||
if (ret != 1 ||
|
||
!CheckHandshakeProperties(ssl.get(), is_resume)) {
|
||
return false;
|
||
}
|
||
|
||
// Reset the state to assert later that the callback isn't called in
|
||
// renegotations.
|
||
GetTestState(ssl.get())->got_new_session = false;
|
||
}
|
||
|
||
if (config->export_keying_material > 0) {
|
||
std::vector<uint8_t> result(
|
||
static_cast<size_t>(config->export_keying_material));
|
||
if (SSL_export_keying_material(
|
||
ssl.get(), result.data(), result.size(),
|
||
config->export_label.data(), config->export_label.size(),
|
||
reinterpret_cast<const uint8_t*>(config->export_context.data()),
|
||
config->export_context.size(), config->use_export_context) != 1) {
|
||
fprintf(stderr, "failed to export keying material\n");
|
||
return false;
|
||
}
|
||
if (WriteAll(ssl.get(), result.data(), result.size()) < 0) {
|
||
return false;
|
||
}
|
||
}
|
||
|
||
if (config->write_different_record_sizes) {
|
||
if (config->is_dtls) {
|
||
fprintf(stderr, "write_different_record_sizes not supported for DTLS\n");
|
||
return false;
|
||
}
|
||
// This mode writes a number of different record sizes in an attempt to
|
||
// trip up the CBC record splitting code.
|
||
static const size_t kBufLen = 32769;
|
||
std::unique_ptr<uint8_t[]> buf(new uint8_t[kBufLen]);
|
||
memset(buf.get(), 0x42, kBufLen);
|
||
static const size_t kRecordSizes[] = {
|
||
0, 1, 255, 256, 257, 16383, 16384, 16385, 32767, 32768, 32769};
|
||
for (size_t i = 0; i < OPENSSL_ARRAY_SIZE(kRecordSizes); i++) {
|
||
const size_t len = kRecordSizes[i];
|
||
if (len > kBufLen) {
|
||
fprintf(stderr, "Bad kRecordSizes value.\n");
|
||
return false;
|
||
}
|
||
if (WriteAll(ssl.get(), buf.get(), len) < 0) {
|
||
return false;
|
||
}
|
||
}
|
||
} else {
|
||
if (config->shim_writes_first) {
|
||
if (WriteAll(ssl.get(), reinterpret_cast<const uint8_t *>("hello"),
|
||
5) < 0) {
|
||
return false;
|
||
}
|
||
}
|
||
if (!config->shim_shuts_down) {
|
||
for (;;) {
|
||
static const size_t kBufLen = 16384;
|
||
std::unique_ptr<uint8_t[]> buf(new uint8_t[kBufLen]);
|
||
|
||
// Read only 512 bytes at a time in TLS to ensure records may be
|
||
// returned in multiple reads.
|
||
int n = DoRead(ssl.get(), buf.get(), config->is_dtls ? kBufLen : 512);
|
||
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 false;
|
||
}
|
||
// Stop on either clean or unclean shutdown.
|
||
break;
|
||
} else if (err != SSL_ERROR_NONE) {
|
||
if (n > 0) {
|
||
fprintf(stderr, "Invalid SSL_get_error output\n");
|
||
return false;
|
||
}
|
||
return false;
|
||
}
|
||
// Successfully read data.
|
||
if (n <= 0) {
|
||
fprintf(stderr, "Invalid SSL_get_error output\n");
|
||
return false;
|
||
}
|
||
|
||
// After a successful read, with or without False Start, the handshake
|
||
// must be complete.
|
||
if (!GetTestState(ssl.get())->handshake_done) {
|
||
fprintf(stderr, "handshake was not completed after SSL_read\n");
|
||
return false;
|
||
}
|
||
|
||
for (int i = 0; i < n; i++) {
|
||
buf[i] ^= 0xff;
|
||
}
|
||
if (WriteAll(ssl.get(), buf.get(), n) < 0) {
|
||
return false;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
if (!config->is_server &&
|
||
!config->implicit_handshake &&
|
||
// Session tickets are sent post-handshake in TLS 1.3.
|
||
GetProtocolVersion(ssl.get()) < TLS1_3_VERSION &&
|
||
GetTestState(ssl.get())->got_new_session) {
|
||
fprintf(stderr, "new session was established after the handshake\n");
|
||
return false;
|
||
}
|
||
|
||
if (GetProtocolVersion(ssl.get()) >= TLS1_3_VERSION && !config->is_server) {
|
||
bool expect_new_session =
|
||
!config->expect_no_session && !config->shim_shuts_down;
|
||
if (expect_new_session != GetTestState(ssl.get())->got_new_session) {
|
||
fprintf(stderr,
|
||
"new session was%s cached, but we expected the opposite\n",
|
||
GetTestState(ssl.get())->got_new_session ? "" : " not");
|
||
return false;
|
||
}
|
||
}
|
||
|
||
if (out_session) {
|
||
*out_session = std::move(GetTestState(ssl.get())->new_session);
|
||
}
|
||
|
||
ret = DoShutdown(ssl.get());
|
||
|
||
if (config->shim_shuts_down && config->check_close_notify) {
|
||
// We initiate shutdown, so |SSL_shutdown| will return in two stages. First
|
||
// it returns zero when our close_notify is sent, then one when the peer's
|
||
// is received.
|
||
if (ret != 0) {
|
||
fprintf(stderr, "Unexpected SSL_shutdown result: %d != 0\n", ret);
|
||
return false;
|
||
}
|
||
ret = DoShutdown(ssl.get());
|
||
}
|
||
|
||
if (ret != 1) {
|
||
fprintf(stderr, "Unexpected SSL_shutdown result: %d != 1\n", ret);
|
||
return false;
|
||
}
|
||
|
||
if (SSL_total_renegotiations(ssl.get()) !=
|
||
config->expect_total_renegotiations) {
|
||
fprintf(stderr, "Expected %d renegotiations, got %ld\n",
|
||
config->expect_total_renegotiations,
|
||
SSL_total_renegotiations(ssl.get()));
|
||
return false;
|
||
}
|
||
|
||
return true;
|
||
}
|
||
|
||
class StderrDelimiter {
|
||
public:
|
||
~StderrDelimiter() { fprintf(stderr, "--- DONE ---\n"); }
|
||
};
|
||
|
||
static int Main(int argc, char **argv) {
|
||
// To distinguish ASan's output from ours, add a trailing message to stderr.
|
||
// Anything following this line will be considered an error.
|
||
StderrDelimiter delimiter;
|
||
|
||
#if defined(OPENSSL_SYS_WINDOWS)
|
||
/* Initialize Winsock. */
|
||
WORD wsa_version = MAKEWORD(2, 2);
|
||
WSADATA wsa_data;
|
||
int wsa_err = WSAStartup(wsa_version, &wsa_data);
|
||
if (wsa_err != 0) {
|
||
fprintf(stderr, "WSAStartup failed: %d\n", wsa_err);
|
||
return 1;
|
||
}
|
||
if (wsa_data.wVersion != wsa_version) {
|
||
fprintf(stderr, "Didn't get expected version: %x\n", wsa_data.wVersion);
|
||
return 1;
|
||
}
|
||
#else
|
||
signal(SIGPIPE, SIG_IGN);
|
||
#endif
|
||
|
||
OPENSSL_init_crypto(0, NULL);
|
||
OPENSSL_init_ssl(0, NULL);
|
||
g_config_index = SSL_get_ex_new_index(0, NULL, NULL, NULL, NULL);
|
||
g_state_index = SSL_get_ex_new_index(0, NULL, NULL, NULL, TestStateExFree);
|
||
if (g_config_index < 0 || g_state_index < 0) {
|
||
return 1;
|
||
}
|
||
|
||
TestConfig config;
|
||
if (!ParseConfig(argc - 1, argv + 1, &config)) {
|
||
return Usage(argv[0]);
|
||
}
|
||
|
||
bssl::UniquePtr<SSL_CTX> ssl_ctx = SetupCtx(&config);
|
||
if (!ssl_ctx) {
|
||
ERR_print_errors_fp(stderr);
|
||
return 1;
|
||
}
|
||
|
||
bssl::UniquePtr<SSL_SESSION> session;
|
||
for (int i = 0; i < config.resume_count + 1; i++) {
|
||
bool is_resume = i > 0;
|
||
if (is_resume && !config.is_server && !session) {
|
||
fprintf(stderr, "No session to offer.\n");
|
||
return 1;
|
||
}
|
||
|
||
bssl::UniquePtr<SSL_SESSION> offer_session = std::move(session);
|
||
if (!DoExchange(&session, ssl_ctx.get(), &config, is_resume,
|
||
offer_session.get())) {
|
||
fprintf(stderr, "Connection %d failed.\n", i + 1);
|
||
ERR_print_errors_fp(stderr);
|
||
return 1;
|
||
}
|
||
}
|
||
|
||
return 0;
|
||
}
|
||
|
||
} // namespace bssl
|
||
|
||
int main(int argc, char **argv) {
|
||
return bssl::Main(argc, argv);
|
||
}
|