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/*
* Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the OpenSSL license (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include <stdio.h>
#include <string.h>
#include <openssl/conf.h>
#include <openssl/err.h>
#include <openssl/ssl.h>
#include "handshake_helper.h"
#include "ssl_test_ctx.h"
#include "testutil.h"
#include "test_main_custom.h"
static CONF *conf = NULL;
/* Currently the section names are of the form test-<number>, e.g. test-15. */
#define MAX_TESTCASE_NAME_LENGTH 100
static const char *print_alert(int alert)
{
return alert ? SSL_alert_desc_string_long(alert) : "no alert";
}
static int check_result(HANDSHAKE_RESULT *result, SSL_TEST_CTX *test_ctx)
{
if (result->result != test_ctx->expected_result) {
fprintf(stderr, "ExpectedResult mismatch: expected %s, got %s.\n",
ssl_test_result_name(test_ctx->expected_result),
ssl_test_result_name(result->result));
return 0;
}
return 1;
}
static int check_alerts(HANDSHAKE_RESULT *result, SSL_TEST_CTX *test_ctx)
{
if (result->client_alert_sent != result->client_alert_received) {
fprintf(stderr, "Client sent alert %s but server received %s\n.",
print_alert(result->client_alert_sent),
print_alert(result->client_alert_received));
/*
* We can't bail here because the peer doesn't always get far enough
* to process a received alert. Specifically, in protocol version
* negotiation tests, we have the following scenario.
* Client supports TLS v1.2 only; Server supports TLS v1.1.
* Client proposes TLS v1.2; server responds with 1.1;
* Client now sends a protocol alert, using TLS v1.2 in the header.
* The server, however, rejects the alert because of version mismatch
* in the record layer; therefore, the server appears to never
* receive the alert.
*/
/* return 0; */
}
if (result->server_alert_sent != result->server_alert_received) {
fprintf(stderr, "Server sent alert %s but client received %s\n.",
print_alert(result->server_alert_sent),
print_alert(result->server_alert_received));
/* return 0; */
}
/* Tolerate an alert if one wasn't explicitly specified in the test. */
if (test_ctx->expected_client_alert
/*
* The info callback alert value is computed as
* (s->s3->send_alert[0] << 8) | s->s3->send_alert[1]
* where the low byte is the alert code and the high byte is other stuff.
*/
&& (result->client_alert_sent & 0xff) != test_ctx->expected_client_alert) {
fprintf(stderr, "ClientAlert mismatch: expected %s, got %s.\n",
print_alert(test_ctx->expected_client_alert),
print_alert(result->client_alert_sent));
return 0;
}
if (test_ctx->expected_server_alert
&& (result->server_alert_sent & 0xff) != test_ctx->expected_server_alert) {
fprintf(stderr, "ServerAlert mismatch: expected %s, got %s.\n",
print_alert(test_ctx->expected_server_alert),
print_alert(result->server_alert_sent));
return 0;
}
if (result->client_num_fatal_alerts_sent > 1) {
fprintf(stderr, "Client sent %d fatal alerts.\n",
result->client_num_fatal_alerts_sent);
return 0;
}
if (result->server_num_fatal_alerts_sent > 1) {
fprintf(stderr, "Server sent %d alerts.\n",
result->server_num_fatal_alerts_sent);
return 0;
}
return 1;
}
static int check_protocol(HANDSHAKE_RESULT *result, SSL_TEST_CTX *test_ctx)
{
if (result->client_protocol != result->server_protocol) {
fprintf(stderr, "Client has protocol %s but server has %s\n.",
ssl_protocol_name(result->client_protocol),
ssl_protocol_name(result->server_protocol));
return 0;
}
if (test_ctx->expected_protocol) {
if (result->client_protocol != test_ctx->expected_protocol) {
fprintf(stderr, "Protocol mismatch: expected %s, got %s.\n",
ssl_protocol_name(test_ctx->expected_protocol),
ssl_protocol_name(result->client_protocol));
return 0;
}
}
return 1;
}
static int check_servername(HANDSHAKE_RESULT *result, SSL_TEST_CTX *test_ctx)
{
if (result->servername != test_ctx->expected_servername) {
fprintf(stderr, "Client ServerName mismatch, expected %s, got %s\n.",
ssl_servername_name(test_ctx->expected_servername),
ssl_servername_name(result->servername));
return 0;
}
return 1;
}
static int check_session_ticket(HANDSHAKE_RESULT *result, SSL_TEST_CTX *test_ctx)
{
if (test_ctx->session_ticket_expected == SSL_TEST_SESSION_TICKET_IGNORE)
return 1;
if (result->session_ticket != test_ctx->session_ticket_expected) {
fprintf(stderr, "Client SessionTicketExpected mismatch, expected %s, got %s\n.",
ssl_session_ticket_name(test_ctx->session_ticket_expected),
ssl_session_ticket_name(result->session_ticket));
return 0;
}
return 1;
}
#ifndef OPENSSL_NO_NEXTPROTONEG
static int check_npn(HANDSHAKE_RESULT *result, SSL_TEST_CTX *test_ctx)
{
int ret = 1;
ret &= strings_equal("NPN Negotiated (client vs server)",
result->client_npn_negotiated,
result->server_npn_negotiated);
ret &= strings_equal("ExpectedNPNProtocol",
test_ctx->expected_npn_protocol,
result->client_npn_negotiated);
return ret;
}
#endif
static int check_alpn(HANDSHAKE_RESULT *result, SSL_TEST_CTX *test_ctx)
{
int ret = 1;
ret &= strings_equal("ALPN Negotiated (client vs server)",
result->client_alpn_negotiated,
result->server_alpn_negotiated);
ret &= strings_equal("ExpectedALPNProtocol",
test_ctx->expected_alpn_protocol,
result->client_alpn_negotiated);
return ret;
}
static int check_resumption(HANDSHAKE_RESULT *result, SSL_TEST_CTX *test_ctx)
{
if (result->client_resumed != result->server_resumed) {
fprintf(stderr, "Resumption mismatch (client vs server): %d vs %d\n",
result->client_resumed, result->server_resumed);
return 0;
}
if (result->client_resumed != test_ctx->resumption_expected) {
fprintf(stderr, "ResumptionExpected mismatch: %d vs %d\n",
test_ctx->resumption_expected, result->client_resumed);
return 0;
}
return 1;
}
/*
* This could be further simplified by constructing an expected
* HANDSHAKE_RESULT, and implementing comparison methods for
* its fields.
*/
static int check_test(HANDSHAKE_RESULT *result, SSL_TEST_CTX *test_ctx)
{
int ret = 1;
ret &= check_result(result, test_ctx);
ret &= check_alerts(result, test_ctx);
if (result->result == SSL_TEST_SUCCESS) {
ret &= check_protocol(result, test_ctx);
ret &= check_servername(result, test_ctx);
ret &= check_session_ticket(result, test_ctx);
ret &= (result->session_ticket_do_not_call == 0);
#ifndef OPENSSL_NO_NEXTPROTONEG
ret &= check_npn(result, test_ctx);
#endif
ret &= check_alpn(result, test_ctx);
ret &= check_resumption(result, test_ctx);
}
return ret;
}
static int test_handshake(int idx)
{
int ret = 0;
SSL_CTX *server_ctx = NULL, *server2_ctx = NULL, *client_ctx = NULL,
*resume_server_ctx = NULL, *resume_client_ctx = NULL;
SSL_TEST_CTX *test_ctx = NULL;
HANDSHAKE_RESULT *result = NULL;
char test_app[MAX_TESTCASE_NAME_LENGTH];
BIO_snprintf(test_app, sizeof(test_app), "test-%d", idx);
test_ctx = SSL_TEST_CTX_create(conf, test_app);
if (test_ctx == NULL)
goto err;
#ifndef OPENSSL_NO_DTLS
if (test_ctx->method == SSL_TEST_METHOD_DTLS) {
server_ctx = SSL_CTX_new(DTLS_server_method());
if (test_ctx->extra.server.servername_callback !=
SSL_TEST_SERVERNAME_CB_NONE) {
server2_ctx = SSL_CTX_new(DTLS_server_method());
TEST_check(server2_ctx != NULL);
}
client_ctx = SSL_CTX_new(DTLS_client_method());
if (test_ctx->handshake_mode == SSL_TEST_HANDSHAKE_RESUME) {
resume_server_ctx = SSL_CTX_new(DTLS_server_method());
resume_client_ctx = SSL_CTX_new(DTLS_client_method());
TEST_check(resume_server_ctx != NULL);
TEST_check(resume_client_ctx != NULL);
}
}
#endif
if (test_ctx->method == SSL_TEST_METHOD_TLS) {
server_ctx = SSL_CTX_new(TLS_server_method());
/* SNI on resumption isn't supported/tested yet. */
if (test_ctx->extra.server.servername_callback !=
SSL_TEST_SERVERNAME_CB_NONE) {
server2_ctx = SSL_CTX_new(TLS_server_method());
TEST_check(server2_ctx != NULL);
}
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