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b3e2272c59
openssl/test/packettest.c
Emilia Kasper b3e2272c59 ssl3_get_client_hello: rearrange logic 
Move all packet parsing to the beginning of the method. This limits the
SSLv2 compatibility soup to the parsing, and makes the rest of the
processing uniform.

This is also needed for simpler EMS support: EMS servers need to do an
early scan for EMS to make resumption decisions. This'll be easier when
the entire ClientHello is parsed in the beginning.

As a side effect,
1) PACKETize ssl_get_prev_session and tls1_process_ticket; and
2) Delete dead code for SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG.

Reviewed-by: Matt Caswell <matt@openssl.org>
2015-10-05 19:03:52 +02:00

456 lines
14 KiB
C
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/* test/packettest.c */
/*
* Written by Matt Caswell for the OpenSSL project.
*/
/* ====================================================================
* Copyright (c) 2015 The OpenSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
*
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* openssl-core@openssl.org.
*
* 5. Products derived from this software may not be called "OpenSSL"
* nor may "OpenSSL" appear in their names without prior written
* permission of the OpenSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (http://www.openssl.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*
* This product includes cryptographic software written by Eric Young
* (eay@cryptsoft.com). This product includes software written by Tim
* Hudson (tjh@cryptsoft.com).
*
*/
#include "../ssl/packet_locl.h"
#define BUF_LEN 255
static int test_PACKET_remaining(unsigned char buf[BUF_LEN])
{
PACKET pkt;
if ( !PACKET_buf_init(&pkt, buf, BUF_LEN)
|| PACKET_remaining(&pkt) != BUF_LEN
|| !PACKET_forward(&pkt, BUF_LEN - 1)
|| PACKET_remaining(&pkt) != 1
|| !PACKET_forward(&pkt, 1)
|| PACKET_remaining(&pkt) != 0) {
fprintf(stderr, "test_PACKET_remaining() failed\n");
return 0;
}
return 1;
}
static int test_PACKET_get_1(unsigned char buf[BUF_LEN])
{
unsigned int i;
PACKET pkt;
if ( !PACKET_buf_init(&pkt, buf, BUF_LEN)
|| !PACKET_get_1(&pkt, &i)
|| i != 0x02
|| !PACKET_forward(&pkt, BUF_LEN - 2)
|| !PACKET_get_1(&pkt, &i)
|| i != 0xfe
|| PACKET_get_1(&pkt, &i)) {
fprintf(stderr, "test_PACKET_get_1() failed\n");
return 0;
}
return 1;
}
static int test_PACKET_get_4(unsigned char buf[BUF_LEN])
{
unsigned long i;
PACKET pkt;
if ( !PACKET_buf_init(&pkt, buf, BUF_LEN)
|| !PACKET_get_4(&pkt, &i)
|| i != 0x08060402UL
|| !PACKET_forward(&pkt, BUF_LEN - 8)
|| !PACKET_get_4(&pkt, &i)
|| i != 0xfefcfaf8UL
|| PACKET_get_4(&pkt, &i)) {
fprintf(stderr, "test_PACKET_get_4() failed\n");
return 0;
}
return 1;
}
static int test_PACKET_get_net_2(unsigned char buf[BUF_LEN])
{
unsigned int i;
PACKET pkt;
if ( !PACKET_buf_init(&pkt, buf, BUF_LEN)
|| !PACKET_get_net_2(&pkt, &i)
|| i != 0x0204
|| !PACKET_forward(&pkt, BUF_LEN - 4)
|| !PACKET_get_net_2(&pkt, &i)
|| i != 0xfcfe
|| PACKET_get_net_2(&pkt, &i)) {
fprintf(stderr, "test_PACKET_get_net_2() failed\n");
return 0;
}
return 1;
}
static int test_PACKET_get_net_3(unsigned char buf[BUF_LEN])
{
unsigned long i;
PACKET pkt;
if ( !PACKET_buf_init(&pkt, buf, BUF_LEN)
|| !PACKET_get_net_3(&pkt, &i)
|| i != 0x020406UL
|| !PACKET_forward(&pkt, BUF_LEN - 6)
|| !PACKET_get_net_3(&pkt, &i)
|| i != 0xfafcfeUL
|| PACKET_get_net_3(&pkt, &i)) {
fprintf(stderr, "test_PACKET_get_net_3() failed\n");
return 0;
}
return 1;
}
static int test_PACKET_get_net_4(unsigned char buf[BUF_LEN])
{
unsigned long i;
PACKET pkt;
if ( !PACKET_buf_init(&pkt, buf, BUF_LEN)
|| !PACKET_get_net_4(&pkt, &i)
|| i != 0x02040608UL
|| !PACKET_forward(&pkt, BUF_LEN - 8)
|| !PACKET_get_net_4(&pkt, &i)
|| i != 0xf8fafcfeUL
|| PACKET_get_net_4(&pkt, &i)) {
fprintf(stderr, "test_PACKET_get_net_4() failed\n");
return 0;
}
return 1;
}
static int test_PACKET_get_sub_packet(unsigned char buf[BUF_LEN])
{
PACKET pkt, subpkt;
unsigned long i;
if ( !PACKET_buf_init(&pkt, buf, BUF_LEN)
|| !PACKET_get_sub_packet(&pkt, &subpkt, 4)
|| !PACKET_get_net_4(&subpkt, &i)
|| i != 0x02040608UL
|| PACKET_remaining(&subpkt)
|| !PACKET_forward(&pkt, BUF_LEN - 8)
|| !PACKET_get_sub_packet(&pkt, &subpkt, 4)
|| !PACKET_get_net_4(&subpkt, &i)
|| i != 0xf8fafcfeUL
|| PACKET_remaining(&subpkt)
|| PACKET_get_sub_packet(&pkt, &subpkt, 4)) {
fprintf(stderr, "test_PACKET_get_sub_packet() failed\n");
return 0;
}
return 1;
}
static int test_PACKET_get_bytes(unsigned char buf[BUF_LEN])
{
unsigned char *bytes;
PACKET pkt;
if ( !PACKET_buf_init(&pkt, buf, BUF_LEN)
|| !PACKET_get_bytes(&pkt, &bytes, 4)
|| bytes[0] != 2 || bytes[1] != 4
|| bytes[2] != 6 || bytes[3] != 8
|| PACKET_remaining(&pkt) != BUF_LEN -4
|| !PACKET_forward(&pkt, BUF_LEN - 8)
|| !PACKET_get_bytes(&pkt, &bytes, 4)
|| bytes[0] != 0xf8 || bytes[1] != 0xfa
|| bytes[2] != 0xfc || bytes[3] != 0xfe
|| PACKET_remaining(&pkt)) {
fprintf(stderr, "test_PACKET_get_bytes() failed\n");
return 0;
}
return 1;
}
static int test_PACKET_copy_bytes(unsigned char buf[BUF_LEN])
{
unsigned char bytes[4];
PACKET pkt;
if ( !PACKET_buf_init(&pkt, buf, BUF_LEN)
|| !PACKET_copy_bytes(&pkt, bytes, 4)
|| bytes[0] != 2 || bytes[1] != 4
|| bytes[2] != 6 || bytes[3] != 8
|| PACKET_remaining(&pkt) != BUF_LEN - 4
|| !PACKET_forward(&pkt, BUF_LEN - 8)
|| !PACKET_copy_bytes(&pkt, bytes, 4)
|| bytes[0] != 0xf8 || bytes[1] != 0xfa
|| bytes[2] != 0xfc || bytes[3] != 0xfe
|| PACKET_remaining(&pkt)) {
fprintf(stderr, "test_PACKET_copy_bytes() failed\n");
return 0;
}
return 1;
}
static int test_PACKET_memdup(unsigned char buf[BUF_LEN])
{
unsigned char *data = NULL;
size_t len;
PACKET pkt;
if ( !PACKET_buf_init(&pkt, buf, BUF_LEN)
|| !PACKET_memdup(&pkt, &data, &len)
|| len != BUF_LEN
|| memcmp(data, PACKET_data(&pkt), len)
|| !PACKET_forward(&pkt, 10)
|| !PACKET_memdup(&pkt, &data, &len)
|| len != BUF_LEN - 10
|| memcmp(data, PACKET_data(&pkt), len)) {
fprintf(stderr, "test_PACKET_memdup() failed\n");
OPENSSL_free(data);
return 0;
}
OPENSSL_free(data);
return 1;
}
static int test_PACKET_strndup()
{
char buf[10], buf2[10];
char *data = NULL;
PACKET pkt;
memset(buf, 'x', 10);
memset(buf2, 'y', 10);
buf2[5] = '\0';
if ( !PACKET_buf_init(&pkt, (unsigned char*)buf, 10)
|| !PACKET_strndup(&pkt, &data)
|| strlen(data) != 10
|| strncmp(data, buf, 10)
|| !PACKET_buf_init(&pkt, (unsigned char*)buf2, 10)
|| !PACKET_strndup(&pkt, &data)
|| strlen(data) != 5
|| strcmp(data, buf2)) {
fprintf(stderr, "test_PACKET_strndup failed\n");
OPENSSL_free(data);
return 0;
}
OPENSSL_free(data);
return 1;
}
static int test_PACKET_forward(unsigned char buf[BUF_LEN])
{
unsigned char *byte;
PACKET pkt;
if ( !PACKET_buf_init(&pkt, buf, BUF_LEN)
|| !PACKET_forward(&pkt, 1)
|| !PACKET_get_bytes(&pkt, &byte, 1)
|| byte[0] != 4
|| !PACKET_forward(&pkt, BUF_LEN - 3)
|| !PACKET_get_bytes(&pkt, &byte, 1)
|| byte[0] != 0xfe) {
fprintf(stderr, "test_PACKET_forward() failed\n");
return 0;
}
return 1;
}
static int test_PACKET_buf_init()
{
unsigned char buf[BUF_LEN];
PACKET pkt;
/* Also tests PACKET_get_len() */
if ( !PACKET_buf_init(&pkt, buf, 4)
|| PACKET_remaining(&pkt) != 4
|| !PACKET_buf_init(&pkt, buf, BUF_LEN)
|| PACKET_remaining(&pkt) != BUF_LEN
|| PACKET_buf_init(&pkt, buf, -1)) {
fprintf(stderr, "test_PACKET_buf_init() failed\n");
return 0;
}
return 1;
}
static int test_PACKET_null_init()
{
PACKET pkt;
PACKET_null_init(&pkt);
/* Also tests PACKET_get_len() */
if ( PACKET_remaining(&pkt) != 0
|| PACKET_forward(&pkt, 1)) {
fprintf(stderr, "test_PACKET_null_init() failed\n");
return 0;
}
return 1;
}
static int test_PACKET_get_length_prefixed_1()
{
unsigned char buf[BUF_LEN];
const size_t len = 16;
unsigned int i;
PACKET pkt, short_pkt, subpkt;
buf[0] = len;
for (i = 1; i < BUF_LEN; i++) {
buf[i] = (i * 2) & 0xff;
}
if ( !PACKET_buf_init(&pkt, buf, BUF_LEN)
|| !PACKET_buf_init(&short_pkt, buf, len)
|| !PACKET_get_length_prefixed_1(&pkt, &subpkt)
|| PACKET_remaining(&subpkt) != len
|| !PACKET_get_net_2(&subpkt, &i)
|| i != 0x0204
|| PACKET_get_length_prefixed_1(&short_pkt, &subpkt)
|| PACKET_remaining(&short_pkt) != len) {
fprintf(stderr, "test_PACKET_get_length_prefixed_1() failed\n");
return 0;
}
return 1;
}
static int test_PACKET_get_length_prefixed_2()
{
unsigned char buf[1024];
const size_t len = 516; /* 0x0204 */
unsigned int i;
PACKET pkt, short_pkt, subpkt;
for (i = 1; i <= 1024; i++) {
buf[i-1] = (i * 2) & 0xff;
}
if ( !PACKET_buf_init(&pkt, buf, 1024)
|| !PACKET_buf_init(&short_pkt, buf, len)
|| !PACKET_get_length_prefixed_2(&pkt, &subpkt)
|| PACKET_remaining(&subpkt) != len
|| !PACKET_get_net_2(&subpkt, &i)
|| i != 0x0608
|| PACKET_get_length_prefixed_2(&short_pkt, &subpkt)
|| PACKET_remaining(&short_pkt) != len) {
fprintf(stderr, "test_PACKET_get_length_prefixed_2() failed\n");
return 0;
}
return 1;
}
static int test_PACKET_get_length_prefixed_3()
{
unsigned char buf[1024];
const size_t len = 516; /* 0x000204 */
unsigned int i;
PACKET pkt, short_pkt, subpkt;
for (i = 0; i < 1024; i++) {
buf[i] = (i * 2) & 0xff;
}
if ( !PACKET_buf_init(&pkt, buf, 1024)
|| !PACKET_buf_init(&short_pkt, buf, len)
|| !PACKET_get_length_prefixed_3(&pkt, &subpkt)
|| PACKET_remaining(&subpkt) != len
|| !PACKET_get_net_2(&subpkt, &i)
|| i != 0x0608
|| PACKET_get_length_prefixed_3(&short_pkt, &subpkt)
|| PACKET_remaining(&short_pkt) != len) {
fprintf(stderr, "test_PACKET_get_length_prefixed_3() failed\n");
return 0;
}
return 1;
}
int main(int argc, char **argv)
{
unsigned char buf[BUF_LEN];
unsigned int i;
for (i=1; i<=BUF_LEN; i++) {
buf[i-1] = (i * 2) & 0xff;
}
i = 0;
if ( !test_PACKET_buf_init()
|| !test_PACKET_null_init()
|| !test_PACKET_remaining(buf)
|| !test_PACKET_get_1(buf)
|| !test_PACKET_get_4(buf)
|| !test_PACKET_get_net_2(buf)
|| !test_PACKET_get_net_3(buf)
|| !test_PACKET_get_net_4(buf)
|| !test_PACKET_get_sub_packet(buf)
|| !test_PACKET_get_bytes(buf)
|| !test_PACKET_copy_bytes(buf)
|| !test_PACKET_memdup(buf)
|| !test_PACKET_strndup()
|| !test_PACKET_forward(buf)
|| !test_PACKET_get_length_prefixed_1()
|| !test_PACKET_get_length_prefixed_2()
|| !test_PACKET_get_length_prefixed_3()) {
return 1;
}
printf("PASS\n");
return 0;
}
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