/*****************************************************************************
**
** TEST2_BRANCH_ID: UAC resolve error test.
**
** Test the scenario where destination host is unresolvable. There are
** two variants:
** (a) resolver returns immediate error
** (b) resolver returns error via the callback.
**
*****************************************************************************
*/
static int tsx_resolve_error_test(void)
{
int status;
PJ_LOG(3,(THIS_FILE, " test2: resolve error test"));
/*
* Variant (a): immediate resolve error.
*/
PJ_LOG(3,(THIS_FILE, " variant a: immediate resolving error"));
status = perform_tsx_test(-800,
"sip:bob@unresolved-host",
FROM_URI, TEST2_BRANCH_ID, 10,
&pjsip_options_method);
if (status != 0)
return status;
/*
* Variant (b): error via callback.
*/
PJ_LOG(3,(THIS_FILE, " variant b: error via callback"));
/* This only applies to "loop-dgram" transport */
if (test_param->type == PJSIP_TRANSPORT_LOOP_DGRAM) {
/* Set loop transport to return delayed error. */
pjsip_loop_set_failure(loop, 2, NULL);
pjsip_loop_set_send_callback_delay(loop, 10, NULL);
status = perform_tsx_test(-800, TARGET_URI, FROM_URI,
TEST2_BRANCH_ID, 2,
&pjsip_options_method);
if (status != 0)
return status;
/* Restore loop transport settings. */
pjsip_loop_set_failure(loop, 0, NULL);
pjsip_loop_set_send_callback_delay(loop, 0, NULL);
}
return status;
}
/*****************************************************************************
**
** TEST1_BRANCH_ID: UAC basic retransmission and timeout test.
**
** This will test the retransmission of the UAC transaction. Remote will not
** answer the transaction, so the transaction should fail. The Via branch prm
** TEST1_BRANCH_ID will be used for this test.
**
*****************************************************************************
*/
static int tsx_uac_retransmit_test(void)
{
int status, enabled;
int i;
struct {
const pjsip_method *method;
unsigned delay;
} sub_test[] =
{
{ &pjsip_invite_method, 0},
{ &pjsip_invite_method, TEST1_ALLOWED_DIFF*2},
{ &pjsip_options_method, 0},
{ &pjsip_options_method, TEST1_ALLOWED_DIFF*2}
};
PJ_LOG(3,(THIS_FILE, " test1: basic uac retransmit and timeout test"));
/* For this test. message printing shound be disabled because it makes
* incorrect timing.
*/
enabled = msg_logger_set_enabled(0);
for (i=0; i<PJ_ARRAY_SIZE(sub_test); ++i) {
PJ_LOG(3,(THIS_FILE,
" variant %c: %s with %d ms network delay",
('a' + i),
sub_test[i].method->name.ptr,
sub_test[i].delay));
/* Configure transport */
pjsip_loop_set_failure(loop, 0, NULL);
pjsip_loop_set_recv_delay(loop, sub_test[i].delay, NULL);
/* Do the test. */
status = perform_tsx_test(-500, TARGET_URI, FROM_URI,
TEST1_BRANCH_ID,
35, sub_test[i].method);
if (status != 0)
break;
}
/* Restore transport. */
pjsip_loop_set_recv_delay(loop, 0, NULL);
/* Restore msg logger. */
msg_logger_set_enabled(enabled);
/* Done. */
return status;
}
/*****************************************************************************
**
** TEST4_BRANCH_ID: Transport failed after several retransmissions
**
** There are two variants of this test: (a) failure occurs immediately when
** transaction calls pjsip_transport_send() or (b) failure is reported via
** transport callback.
**
*****************************************************************************
*/
static int tsx_retransmit_fail_test(void)
{
int i;
unsigned delay[] = {0, 10};
pj_status_t status;
PJ_LOG(3,(THIS_FILE,
" test4: transport fails after several retransmissions test"));
for (i=0; i<PJ_ARRAY_SIZE(delay); ++i) {
PJ_LOG(3,(THIS_FILE,
" variant %c: transport delay %d ms", ('a'+i), delay[i]));
/* Configure transport delay. */
pjsip_loop_set_send_callback_delay(loop, delay[i], NULL);
/* Restore transport failure mode. */
pjsip_loop_set_failure(loop, 0, 0);
/* Start the test. */
status = perform_tsx_test(-1000, TARGET_URI, FROM_URI,
TEST4_BRANCH_ID, 6, &pjsip_options_method);
if (status != 0)
break;
}
/* Restore delay. */
pjsip_loop_set_send_callback_delay(loop, 0, NULL);
/* Restore transport failure mode. */
pjsip_loop_set_failure(loop, 0, 0);
return status;
}
/*
* This is the handler to receive message for this test. It is used to
* control and verify the behavior of the message transmitted by the
* transaction.
*/
static pj_bool_t msg_receiver_on_rx_request(pjsip_rx_data *rdata)
{
if (pj_strcmp2(&rdata->msg_info.via->branch_param, TEST1_BRANCH_ID) == 0) {
/*
* The TEST1_BRANCH_ID test performs the verifications for transaction
* retransmission mechanism. It will not answer the incoming request
* with any response.
*/
pjsip_msg *msg = rdata->msg_info.msg;
PJ_LOG(4,(THIS_FILE, " received request"));
/* Only wants to take INVITE or OPTIONS method. */
if (msg->line.req.method.id != PJSIP_INVITE_METHOD &&
msg->line.req.method.id != PJSIP_OPTIONS_METHOD)
{
PJ_LOG(3,(THIS_FILE, " error: received unexpected method %.*s",
msg->line.req.method.name.slen,
msg->line.req.method.name.ptr));
test_complete = -600;
return PJ_TRUE;
}
if (recv_count == 0) {
recv_count++;
//pj_gettimeofday(&recv_last);
recv_last = rdata->pkt_info.timestamp;
} else {
pj_time_val now;
unsigned msec_expected, msec_elapsed;
int max_received;
//pj_gettimeofday(&now);
now = rdata->pkt_info.timestamp;
PJ_TIME_VAL_SUB(now, recv_last);
msec_elapsed = now.sec*1000 + now.msec;
++recv_count;
msec_expected = (1<<(recv_count-2))*PJSIP_T1_TIMEOUT;
if (msg->line.req.method.id != PJSIP_INVITE_METHOD) {
if (msec_expected > PJSIP_T2_TIMEOUT)
msec_expected = PJSIP_T2_TIMEOUT;
max_received = 11;
} else {
max_received = 7;
}
if (DIFF(msec_expected, msec_elapsed) > TEST1_ALLOWED_DIFF) {
PJ_LOG(3,(THIS_FILE,
" error: expecting retransmission no. %d in %d "
"ms, received in %d ms",
recv_count-1, msec_expected, msec_elapsed));
test_complete = -610;
}
if (recv_count > max_received) {
PJ_LOG(3,(THIS_FILE,
" error: too many messages (%d) received",
recv_count));
test_complete = -620;
}
//pj_gettimeofday(&recv_last);
recv_last = rdata->pkt_info.timestamp;
}
return PJ_TRUE;
} else
if (pj_strcmp2(&rdata->msg_info.via->branch_param, TEST4_BRANCH_ID) == 0) {
/*
* The TEST4_BRANCH_ID test simulates transport failure after several
* retransmissions.
*/
recv_count++;
if (recv_count == TEST4_RETRANSMIT_CNT) {
/* Simulate transport failure. */
pjsip_loop_set_failure(loop, 2, NULL);
} else if (recv_count > TEST4_RETRANSMIT_CNT) {
PJ_LOG(3,(THIS_FILE," error: not expecting %d-th packet!",
recv_count));
test_complete = -631;
}
return PJ_TRUE;
} else
if (pj_strcmp2(&rdata->msg_info.via->branch_param, TEST5_BRANCH_ID) == 0) {
/*
* The TEST5_BRANCH_ID test simulates user terminating the transaction
* after several retransmissions.
*/
recv_count++;
if (recv_count == TEST5_RETRANSMIT_CNT+1) {
pj_str_t key;
pjsip_transaction *tsx;
pjsip_tsx_create_key( rdata->tp_info.pool, &key, PJSIP_ROLE_UAC,
&rdata->msg_info.msg->line.req.method, rdata);
tsx = pjsip_tsx_layer_find_tsx(&key, PJ_TRUE);
if (tsx) {
pjsip_tsx_terminate(tsx, PJSIP_SC_REQUEST_TERMINATED);
pj_mutex_unlock(tsx->mutex);
} else {
PJ_LOG(3,(THIS_FILE, " error: uac transaction not found!"));
test_complete = -633;
}
} else if (recv_count > TEST5_RETRANSMIT_CNT+1) {
PJ_LOG(3,(THIS_FILE," error: not expecting %d-th packet!",
recv_count));
test_complete = -634;
}
return PJ_TRUE;
} else
if (pj_strcmp2(&rdata->msg_info.via->branch_param, TEST6_BRANCH_ID) == 0) {
/*
* The TEST6_BRANCH_ID test successfull non-INVITE transaction.
*/
pj_status_t status;
recv_count++;
if (recv_count > 1) {
PJ_LOG(3,(THIS_FILE," error: not expecting %d-th packet!",
recv_count));
test_complete = -635;
}
status = pjsip_endpt_respond_stateless(endpt, rdata, 202, NULL,
NULL, NULL);
if (status != PJ_SUCCESS) {
app_perror(" error: unable to send response", status);
test_complete = -636;
}
return PJ_TRUE;
} else
if (pj_strcmp2(&rdata->msg_info.via->branch_param, TEST7_BRANCH_ID) == 0) {
/*
* The TEST7_BRANCH_ID test successfull non-INVITE transaction
* with provisional response.
*/
pj_status_t status;
pjsip_response_addr res_addr;
struct response *r;
pjsip_tx_data *tdata;
pj_time_val delay = { 2, 0 };
recv_count++;
if (recv_count > 1) {
PJ_LOG(3,(THIS_FILE," error: not expecting %d-th packet!",
recv_count));
test_complete = -640;
return PJ_TRUE;
}
/* Respond with provisional response */
status = pjsip_endpt_create_response(endpt, rdata, 100, NULL, &tdata);
pj_assert(status == PJ_SUCCESS);
status = pjsip_get_response_addr(tdata->pool, rdata, &res_addr);
pj_assert(status == PJ_SUCCESS);
status = pjsip_endpt_send_response(endpt, &res_addr, tdata,
NULL, NULL);
pj_assert(status == PJ_SUCCESS);
/* Create the final response. */
status = pjsip_endpt_create_response(endpt, rdata, 202, NULL, &tdata);
pj_assert(status == PJ_SUCCESS);
/* Schedule sending final response in couple of of secs. */
r = pj_pool_alloc(tdata->pool, sizeof(*r));
r->res_addr = res_addr;
r->tdata = tdata;
if (r->res_addr.transport)
pjsip_transport_add_ref(r->res_addr.transport);
timer.entry.cb = &send_response_callback;
timer.entry.user_data = r;
pjsip_endpt_schedule_timer(endpt, &timer.entry, &delay);
return PJ_TRUE;
} else
if (pj_strcmp2(&rdata->msg_info.via->branch_param, TEST8_BRANCH_ID) == 0) {
/*
* The TEST8_BRANCH_ID test failed INVITE transaction.
*/
pjsip_method *method;
pj_status_t status;
method = &rdata->msg_info.msg->line.req.method;
recv_count++;
if (method->id == PJSIP_INVITE_METHOD) {
if (recv_count > 1) {
PJ_LOG(3,(THIS_FILE," error: not expecting %d-th packet!",
recv_count));
test_complete = -635;
}
status = pjsip_endpt_respond_stateless(endpt, rdata, 301, NULL,
NULL, NULL);
if (status != PJ_SUCCESS) {
app_perror(" error: unable to send response", status);
test_complete = -636;
}
} else if (method->id == PJSIP_ACK_METHOD) {
if (recv_count == 2) {
pj_str_t key;
pj_time_val delay = { 5, 0 };
/* Schedule timer to destroy transaction after 5 seconds.
* This is to make sure that transaction does not
* retransmit ACK.
*/
pjsip_tsx_create_key(rdata->tp_info.pool, &key,
PJSIP_ROLE_UAC, &pjsip_invite_method,
rdata);
pj_strcpy(&timer.tsx_key, &key);
timer.entry.id = 301;
timer.entry.cb = &terminate_tsx_callback;
pjsip_endpt_schedule_timer(endpt, &timer.entry, &delay);
}
if (recv_count > 2) {
PJ_LOG(3,(THIS_FILE," error: not expecting %d-th packet!",
recv_count));
test_complete = -638;
}
} else {
PJ_LOG(3,(THIS_FILE," error: not expecting %s",
pjsip_rx_data_get_info(rdata)));
test_complete = -639;
}
} else
if (pj_strcmp2(&rdata->msg_info.via->branch_param, TEST9_BRANCH_ID) == 0) {
/*
* The TEST9_BRANCH_ID test failed INVITE transaction with
* provisional response.
*/
pjsip_method *method;
pj_status_t status;
method = &rdata->msg_info.msg->line.req.method;
recv_count++;
if (method->id == PJSIP_INVITE_METHOD) {
pjsip_response_addr res_addr;
struct response *r;
pjsip_tx_data *tdata;
pj_time_val delay = { 2, 0 };
if (recv_count > 1) {
PJ_LOG(3,(THIS_FILE," error: not expecting %d-th packet!",
recv_count));
test_complete = -650;
return PJ_TRUE;
}
/* Respond with provisional response */
status = pjsip_endpt_create_response(endpt, rdata, 100, NULL,
&tdata);
pj_assert(status == PJ_SUCCESS);
status = pjsip_get_response_addr(tdata->pool, rdata, &res_addr);
pj_assert(status == PJ_SUCCESS);
status = pjsip_endpt_send_response(endpt, &res_addr, tdata,
NULL, NULL);
pj_assert(status == PJ_SUCCESS);
/* Create the final response. */
status = pjsip_endpt_create_response(endpt, rdata, 302, NULL,
&tdata);
pj_assert(status == PJ_SUCCESS);
/* Schedule sending final response in couple of of secs. */
r = pj_pool_alloc(tdata->pool, sizeof(*r));
r->res_addr = res_addr;
r->tdata = tdata;
if (r->res_addr.transport)
pjsip_transport_add_ref(r->res_addr.transport);
timer.entry.cb = &send_response_callback;
timer.entry.user_data = r;
pjsip_endpt_schedule_timer(endpt, &timer.entry, &delay);
} else if (method->id == PJSIP_ACK_METHOD) {
if (recv_count == 2) {
pj_str_t key;
pj_time_val delay = { 5, 0 };
/* Schedule timer to destroy transaction after 5 seconds.
* This is to make sure that transaction does not
* retransmit ACK.
*/
pjsip_tsx_create_key(rdata->tp_info.pool, &key,
PJSIP_ROLE_UAC, &pjsip_invite_method,
rdata);
pj_strcpy(&timer.tsx_key, &key);
timer.entry.id = 302;
timer.entry.cb = &terminate_tsx_callback;
pjsip_endpt_schedule_timer(endpt, &timer.entry, &delay);
}
if (recv_count > 2) {
PJ_LOG(3,(THIS_FILE," error: not expecting %d-th packet!",
recv_count));
test_complete = -638;
}
} else {
PJ_LOG(3,(THIS_FILE," error: not expecting %s",
pjsip_rx_data_get_info(rdata)));
test_complete = -639;
}
return PJ_TRUE;
}
return PJ_FALSE;
}
/*****************************************************************************
**
** TEST10_BRANCH_ID: test transport failure in TRYING state.
** TEST11_BRANCH_ID: test transport failure in PROCEEDING state.
** TEST12_BRANCH_ID: test transport failure in CONNECTED state.
** TEST13_BRANCH_ID: test transport failure in CONFIRMED state.
**
*****************************************************************************
*/
static int tsx_transport_failure_test(void)
{
struct test_desc
{
int transport_delay;
int fail_delay;
char *branch_id;
char *title;
} tests[] =
{
{ 0, 10, TEST10_BRANCH_ID, "test10: failed transport in TRYING state (no delay)" },
{ 50, 10, TEST10_BRANCH_ID, "test10: failed transport in TRYING state (50 ms delay)" },
{ 0, 1500, TEST11_BRANCH_ID, "test11: failed transport in PROCEEDING state (no delay)" },
{ 50, 1500, TEST11_BRANCH_ID, "test11: failed transport in PROCEEDING state (50 ms delay)" },
{ 0, 2500, TEST12_BRANCH_ID, "test12: failed transport in COMPLETED state (no delay)" },
{ 50, 2500, TEST12_BRANCH_ID, "test12: failed transport in COMPLETED state (50 ms delay)" },
};
int i, status;
for (i=0; i<(int)PJ_ARRAY_SIZE(tests); ++i) {
pj_time_val fail_time, end_test, now;
PJ_LOG(3,(THIS_FILE, " %s", tests[i].title));
pjsip_loop_set_failure(loop, 0, NULL);
pjsip_loop_set_delay(loop, tests[i].transport_delay);
status = perform_test(TARGET_URI, FROM_URI, tests[i].branch_id,
0, &pjsip_invite_method, 1, 0, 1);
if (status && status != TEST_TIMEOUT_ERROR)
return status;
if (!status) {
PJ_LOG(3,(THIS_FILE, " error: expecting timeout"));
return -40;
}
pj_gettimeofday(&fail_time);
fail_time.msec += tests[i].fail_delay;
pj_time_val_normalize(&fail_time);
do {
pj_time_val interval = { 0, 1 };
pj_gettimeofday(&now);
pjsip_endpt_handle_events(endpt, &interval);
} while (PJ_TIME_VAL_LT(now, fail_time));
pjsip_loop_set_failure(loop, 1, NULL);
end_test = now;
end_test.sec += 5;
do {
pj_time_val interval = { 0, 1 };
pj_gettimeofday(&now);
pjsip_endpt_handle_events(endpt, &interval);
} while (!test_complete && PJ_TIME_VAL_LT(now, end_test));
if (test_complete == 0) {
PJ_LOG(3,(THIS_FILE, " error: test has timed out"));
return -41;
}
if (test_complete != 1)
return test_complete;
}
return 0;
}
