litespeed-quic/test/unittests/test_trapa.c
Dmitri Tikhonov 77a28812de Release 2.14.1
- [BUGFIX] Place connections on tickable queue when sending is reenabled.
- [BUGFIX] A connection is tickable if it has unsent packets.
- [BUGFIX] Heed peer's max_packet_size transport parameter.
2020-04-07 11:42:05 -04:00

279 lines
8 KiB
C

/* Copyright (c) 2017 - 2020 LiteSpeed Technologies Inc. See LICENSE. */
/*
* test_trapa.c -- Test transport parameters.
*/
#include <assert.h>
#include <stddef.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "lsquic.h"
#include "lsquic_types.h"
#include "lsquic_sizes.h"
#include "lsquic_logger.h"
#include "lsquic_trans_params.h"
#define ENC_BUF_SZ 0x1000
struct trapa_test
{
int line;
enum {
TEST_ENCODE = 1 << 0,
TEST_DECODE = 1 << 1,
} flags;
struct transport_params params;
size_t enc_len, dec_len;
unsigned addl_set;
int is_server;
int expect_decode_err;
unsigned char encoded[ENC_BUF_SZ];
};
static const struct trapa_test tests[] =
{
{
.line = __LINE__,
.flags = TEST_ENCODE | TEST_DECODE,
.params = {
TP_DEFAULT_VALUES,
},
.enc_len = 0,
.encoded =
/* Trailer to make the end easily visible in gdb: */
"\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF"
},
{
.line = __LINE__,
.flags = TEST_ENCODE | TEST_DECODE,
.params = {
.tp_set = (1 << TPI_INIT_MAX_STREAM_DATA_BIDI_LOCAL)
| (1 << TPI_INIT_MAX_DATA)
| (1 << TPI_MAX_IDLE_TIMEOUT)
| (1 << TPI_MAX_ACK_DELAY)
| (1 << TPI_MAX_PACKET_SIZE)
| (1 << TPI_ACK_DELAY_EXPONENT)
| (1 << TPI_ACTIVE_CONNECTION_ID_LIMIT),
.tp_init_max_stream_data_bidi_local = 0x12348877,
.tp_init_max_data = 0xAABB,
.tp_max_packet_size = 1213,
.tp_max_idle_timeout = 10 * 1000,
.tp_max_ack_delay = TP_DEF_MAX_ACK_DELAY,
.tp_active_connection_id_limit = 7,
},
.is_server = 0,
.enc_len = 26,
.encoded =
/* Idle timeout */ "\x01\x02\x67\x10"
/* Packet size */ "\x03\x02\x44\xBD"
/* Max data */ "\x04\x04\x80\x00\xAA\xBB"
/* Bidi local */ "\x05\x04\x92\x34\x88\x77"
/* Ack delay exp */ "\x0A\x01\x00"
/* Active CID limit */ "\x0E\x01\x07"
/* Trailer to make the end easily visible in gdb: */
"\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF"
},
{
.line = __LINE__,
.flags = TEST_DECODE,
.dec_len = 1,
.expect_decode_err = 1,
},
{
.line = __LINE__,
.flags = TEST_DECODE,
.dec_len = 3,
.expect_decode_err = 1,
.encoded = "\x00\x04",
},
{
.line = __LINE__,
.flags = TEST_ENCODE | TEST_DECODE,
.params = {
TP_DEFAULT_VALUES,
.tp_init_max_data = 0x123456,
.tp_init_max_stream_data_bidi_local = 0xABCDEF88,
.tp_max_packet_size = 0x555,
},
.is_server = 1,
.addl_set = 1 << TPI_DISABLE_ACTIVE_MIGRATION,
.enc_len = 22,
.encoded =
/* Packet size */ "\x03\x02\x45\x55"
/* Max data */ "\x04\x04\x80\x12\x34\x56"
/* Bidi local */ "\x05\x08\xC0\x00\x00\x00\xAB\xCD\xEF\x88"
/* Migration */ "\x0C\x00"
/* Trailer to make the end easily visible in gdb: */
"\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF"
},
/* Test server preferred address. */
{
.line = __LINE__,
.flags = TEST_DECODE,
.params = {
TP_DEFAULT_VALUES,
.tp_max_ack_delay = 25,
.tp_max_packet_size = 0x555,
.tp_preferred_address = {
.ipv4_addr = "\x01\x02\x03\x04",
.ipv4_port = 0x1234,
.ipv6_addr = "\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0A\x0B\x0C\x0D\x0E\x0F",
.ipv6_port = 0x9001,
.cid = { .len = 11, .idbuf = "\x20\x21\x22\x23\x24\x25\x26\x27\x28\x29\x2A", },
.srst = "\x30\x31\x32\x33\x34\x35\x36\x37\x38\x39\x3A\x3B\x3C\x3D\x3E\x3F",
},
},
.is_server = 1,
.addl_set = 1 << TPI_PREFERRED_ADDRESS,
.enc_len = 0x3A,
.dec_len = 0x3A,
.encoded =
/* Preferred Address */"\x0D"
"\x34"
"\x01\x02\x03\x04"
"\x12\x34"
"\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0A\x0B\x0C\x0D\x0E\x0F"
"\x90\x01"
"\x0B" /* CID len */
"\x20\x21\x22\x23\x24\x25\x26\x27\x28\x29\x2A"
"\x30\x31\x32\x33\x34\x35\x36\x37\x38\x39\x3A\x3B\x3C\x3D\x3E\x3F"
/* Packet size */ "\x03\x02\x45\x55"
/* Trailer to make the end easily visible in gdb: */
"\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF"
},
};
static int
params_are_equal (const struct transport_params *a,
const struct transport_params *b)
{
#define MCMP(f) 0 == memcmp(&a->f, &b->f, sizeof(a->f))
return MCMP(tp_numerics)
&& MCMP(tp_set)
&& MCMP(tp_stateless_reset_token)
&& MCMP(tp_preferred_address.ipv4_addr)
&& MCMP(tp_preferred_address.ipv6_addr)
&& MCMP(tp_preferred_address.srst)
&& MCMP(tp_preferred_address.cid.idbuf)
&& a->tp_preferred_address.ipv4_port == b->tp_preferred_address.ipv4_port
&& a->tp_preferred_address.ipv6_port == b->tp_preferred_address.ipv6_port
&& a->tp_preferred_address.cid.len == b->tp_preferred_address.cid.len
&& MCMP(tp_original_cid.idbuf)
&& a->tp_original_cid.len == b->tp_original_cid.len
;
#undef MCMP
}
static void
run_test (const struct trapa_test *test)
{
struct transport_params source_params;
struct transport_params decoded_params;
size_t dec_len;
int s;
unsigned char buf[ENC_BUF_SZ];
source_params = test->params;
source_params.tp_set |= test->addl_set;
if (test->flags & TEST_ENCODE)
{
s = lsquic_tp_encode(&source_params, test->is_server, buf, sizeof(buf));
assert(s >= 0);
assert((size_t) s == test->enc_len);
assert(0 == memcmp(test->encoded, buf, s));
}
if (test->flags & TEST_DECODE)
{
if (test->dec_len)
dec_len = test->dec_len;
else
dec_len = test->enc_len;
s = lsquic_tp_decode(test->encoded, dec_len,
test->is_server, &decoded_params);
if (!test->expect_decode_err)
{
assert(s >= 0);
assert((size_t) s == test->enc_len);
/* The decoder initializes all default values, so set the flag
* accordingly:
*/
source_params.tp_set |= ((1 << (MAX_NUM_WITH_DEF_TPI + 1)) - 1);
s = params_are_equal(&source_params, &decoded_params);
assert(s);
}
else
assert(s < 0);
}
}
static void
decode_file (const char *name)
{
FILE *file;
size_t nread;
int s;
struct transport_params params;
unsigned char buf[0x1000];
file = fopen(name, "rb");
if (!file)
{
perror("fopen");
exit(1);
}
nread = fread(buf, 1, sizeof(buf), file);
s = lsquic_tp_decode(buf, nread, 0, &params);
fclose(file);
printf("decoded params from %s: %d (%s)\n", name, s, s > 0 ? "OK" : "FAIL");
}
int
main (int argc, char **argv)
{
unsigned i;
int opt;
while (-1 != (opt = getopt(argc, argv, "d:l:")))
{
switch (opt)
{
case 'd':
decode_file(optarg);
return 0;
case 'l':
lsquic_log_to_fstream(stderr, 0);
lsquic_logger_lopt(optarg);
break;
default:
exit(1);
}
}
for (i = 0; i < sizeof(tests) / sizeof(tests[0]); ++i)
run_test(&tests[i]);
return 0;
}