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;
}
static int test_PACKET_get_length_prefixed_3()
{
unsigned char buf1[1024];
const size_t len = 516; /* 0x000204 */
unsigned int i;
PACKET pkt, short_pkt, subpkt = {0};
for (i = 0; i < 1024; i++)
buf1[i] = (i * 2) & 0xff;
if (!TEST_true(PACKET_buf_init(&pkt, buf1, 1024))
|| !TEST_true(PACKET_buf_init(&short_pkt, buf1, len))
|| !TEST_true(PACKET_get_length_prefixed_3(&pkt, &subpkt))
|| !TEST_size_t_eq(PACKET_remaining(&subpkt), len)
|| !TEST_true(PACKET_get_net_2(&subpkt, &i))
|| !TEST_uint_eq(i, 0x0608)
|| !TEST_false(PACKET_get_length_prefixed_3(&short_pkt, &subpkt))
|| !TEST_size_t_eq(PACKET_remaining(&short_pkt), len))
return 0;
return 1;
}
static int watchccs_write(BIO *bio, const char *in, int inl)
{
int ret = 0;
BIO *next = BIO_next(bio);
PACKET pkt, msg, msgbody, sessionid;
unsigned int rectype, recvers, msgtype, expectedrecvers;
if (inl <= 0)
return 0;
if (next == NULL)
return 0;
BIO_clear_retry_flags(bio);
if (!PACKET_buf_init(&pkt, (const unsigned char *)in, inl))
return 0;
/* We assume that we always write complete records each time */
while (PACKET_remaining(&pkt)) {
if (!PACKET_get_1(&pkt, &rectype)
|| !PACKET_get_net_2(&pkt, &recvers)
|| !PACKET_get_length_prefixed_2(&pkt, &msg))
return 0;
expectedrecvers = TLS1_2_VERSION;
if (rectype == SSL3_RT_HANDSHAKE) {
if (!PACKET_get_1(&msg, &msgtype)
|| !PACKET_get_length_prefixed_3(&msg, &msgbody))
return 0;
if (msgtype == SSL3_MT_CLIENT_HELLO) {
chseen++;
/*
* Skip legacy_version (2 bytes) and Random (32 bytes) to read
* session_id.
*/
if (!PACKET_forward(&msgbody, 34)
|| !PACKET_get_length_prefixed_1(&msgbody, &sessionid))
return 0;
if (chseen == 1) {
expectedrecvers = TLS1_VERSION;
/* Save the session id for later */
chsessidlen = PACKET_remaining(&sessionid);
if (!PACKET_copy_bytes(&sessionid, chsessid, chsessidlen))
return 0;
} else {
/*
* Check the session id for the second ClientHello is the
* same as the first one.
*/
if (PACKET_remaining(&sessionid) != chsessidlen
|| (chsessidlen > 0
&& memcmp(chsessid, PACKET_data(&sessionid),
chsessidlen) != 0))
badsessid = 1;
}
} else if (msgtype == SSL3_MT_SERVER_HELLO) {
shseen++;
/*
* Skip legacy_version (2 bytes) and Random (32 bytes) to read
* session_id.
*/
if (!PACKET_forward(&msgbody, 34)
|| !PACKET_get_length_prefixed_1(&msgbody, &sessionid))
return 0;
/*
* Check the session id is the same as the one in the
* ClientHello
*/
if (PACKET_remaining(&sessionid) != chsessidlen
|| (chsessidlen > 0
&& memcmp(chsessid, PACKET_data(&sessionid),
chsessidlen) != 0))
badsessid = 1;
}
} else if (rectype == SSL3_RT_CHANGE_CIPHER_SPEC) {
if (bio == s_to_c_fbio) {
/*
* Server writing. We shouldn't have written any app data
* yet, and we should have seen both the ClientHello and the
* ServerHello
*/
if (!sappdataseen
&& chseen == 1
&& shseen == 1
&& !sccsseen)
sccsseen = 1;
else
badccs = 1;
} else if (!cappdataseen) {
/*
* Client writing. We shouldn't have written any app data
* yet, and we should have seen the ClientHello
*/
if (shseen == 1 && !ccsaftersh)
ccsaftersh = 1;
else if (shseen == 0 && !ccsbeforesh)
ccsbeforesh = 1;
else
badccs = 1;
} else {
badccs = 1;
}
} else if(rectype == SSL3_RT_APPLICATION_DATA) {
if (bio == s_to_c_fbio)
sappdataseen = 1;
else
cappdataseen = 1;
}
if (recvers != expectedrecvers)
badvers = 1;
}
ret = BIO_write(next, in, inl);
if (ret <= 0 && BIO_should_write(next))
BIO_set_retry_write(bio);
return ret;
}