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libnice/tests/test-restart.c

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/*
* This file is part of the Nice GLib ICE library.
*
* (C) 2007 Nokia Corporation. All rights reserved.
* Contact: Kai Vehmanen
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is the Nice GLib ICE library.
*
* The Initial Developers of the Original Code are Collabora Ltd and Nokia
* Corporation. All Rights Reserved.
*
* Contributors:
* Kai Vehmanen, Nokia
*
* Alternatively, the contents of this file may be used under the terms of the
* the GNU Lesser General Public License Version 2.1 (the "LGPL"), in which
* case the provisions of LGPL are applicable instead of those above. If you
* wish to allow use of your version of this file only under the terms of the
* LGPL and not to allow others to use your version of this file under the
* MPL, indicate your decision by deleting the provisions above and replace
* them with the notice and other provisions required by the LGPL. If you do
* not delete the provisions above, a recipient may use your version of this
* file under either the MPL or the LGPL.
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include "agent.h"
#include "agent-priv.h" /* for testing purposes */
#include <stdlib.h>
#include <string.h>
#ifdef _WIN32
#include <io.h>
#endif
static NiceComponentState global_lagent_state = NICE_COMPONENT_STATE_LAST;
static NiceComponentState global_ragent_state = NICE_COMPONENT_STATE_LAST;
static guint global_components_ready = 0;
static guint global_components_ready_exit = 0;
static guint global_components_failed = 0;
static guint global_components_failed_exit = 0;
static GMainLoop *global_mainloop = NULL;
static gboolean global_lagent_gathering_done = FALSE;
static gboolean global_ragent_gathering_done = FALSE;
static gboolean global_lagent_ibr_received = FALSE;
static gboolean global_ragent_ibr_received = FALSE;
static int global_lagent_cands = 0;
static int global_ragent_cands = 0;
static gint global_ragent_read = 0;
static gint global_ragent_read_exit = 0;
static void priv_print_global_status (void)
{
g_debug ("\tgathering_done=%d", global_lagent_gathering_done && global_ragent_gathering_done);
g_debug ("\tlstate=%d", global_lagent_state);
g_debug ("\trstate=%d", global_ragent_state);
}
static gboolean timer_cb (gpointer pointer)
{
g_debug ("test-restart:%s: %p", G_STRFUNC, pointer);
/* signal status via a global variable */
/* note: should not be reached, abort */
g_debug ("ERROR: test has got stuck, aborting...");
exit (-1);
}
static void cb_nice_recv (NiceAgent *agent, guint stream_id, guint component_id, guint len, gchar *buf, gpointer user_data)
{
g_debug ("test-restart:%s: %p", G_STRFUNC, user_data);
/* XXX: dear compiler, these are for you: */
(void)agent; (void)stream_id; (void)component_id; (void)buf;
if ((intptr_t)user_data == 2) {
global_ragent_read += len;
if (global_ragent_read == global_ragent_read_exit)
g_main_loop_quit (global_mainloop);
}
}
static void cb_candidate_gathering_done(NiceAgent *agent, guint stream_id, gpointer data)
{
g_debug ("test-restart:%s: %p", G_STRFUNC, data);
if ((intptr_t)data == 1)
global_lagent_gathering_done = TRUE;
else if ((intptr_t)data == 2)
global_ragent_gathering_done = TRUE;
if (global_lagent_gathering_done &&
global_ragent_gathering_done)
g_main_loop_quit (global_mainloop);
/* XXX: dear compiler, these are for you: */
(void)agent;
}
static void cb_component_state_changed (NiceAgent *agent, guint stream_id, guint component_id, guint state, gpointer data)
{
g_debug ("test-restart:%s: %p", G_STRFUNC, data);
if ((intptr_t)data == 1)
global_lagent_state = state;
else if ((intptr_t)data == 2)
global_ragent_state = state;
if (state == NICE_COMPONENT_STATE_READY)
global_components_ready++;
if (state == NICE_COMPONENT_STATE_FAILED)
global_components_failed++;
g_debug ("test-restart: READY %u exit at %u.", global_components_ready, global_components_ready_exit);
/* signal status via a global variable */
if (global_components_ready == global_components_ready_exit) {
g_main_loop_quit (global_mainloop);
return;
}
/* signal status via a global variable */
if (global_components_failed == global_components_failed_exit) {
g_main_loop_quit (global_mainloop);
return;
}
/* XXX: dear compiler, these are for you: */
(void)agent; (void)stream_id; (void)data; (void)component_id;
}
static void cb_new_selected_pair(NiceAgent *agent, guint stream_id, guint component_id,
gchar *lfoundation, gchar* rfoundation, gpointer data)
{
g_debug ("test-restart:%s: %p", G_STRFUNC, data);
if ((intptr_t)data == 1)
++global_lagent_cands;
else if ((intptr_t)data == 2)
++global_ragent_cands;
/* XXX: dear compiler, these are for you: */
(void)agent; (void)stream_id; (void)component_id; (void)lfoundation; (void)rfoundation;
}
static void cb_new_candidate(NiceAgent *agent, guint stream_id, guint component_id,
gchar *foundation, gpointer data)
{
g_debug ("test-restart:%s: %p", G_STRFUNC, data);
/* XXX: dear compiler, these are for you: */
(void)agent; (void)stream_id; (void)data; (void)component_id; (void)foundation;
}
static void cb_initial_binding_request_received(NiceAgent *agent, guint stream_id, gpointer data)
{
g_debug ("test-restart:%s: %p", G_STRFUNC, data);
if ((intptr_t)data == 1)
global_lagent_ibr_received = TRUE;
else if ((intptr_t)data == 2)
global_ragent_ibr_received = TRUE;
/* XXX: dear compiler, these are for you: */
(void)agent; (void)stream_id; (void)data;
}
static void priv_get_local_addr (NiceAgent *agent, guint stream_id, guint component_id, NiceAddress *dstaddr)
{
GSList *cands, *i;
cands = nice_agent_get_local_candidates(agent, stream_id, component_id);
for (i = cands; i; i = i->next) {
NiceCandidate *cand = i->data;
if (cand) {
g_assert_true (dstaddr);
*dstaddr = cand->addr;
}
}
for (i = cands; i; i = i->next)
nice_candidate_free ((NiceCandidate *) i->data);
g_slist_free (cands);
}
static int run_restart_test (NiceAgent *lagent, NiceAgent *ragent, NiceAddress *baseaddr)
{
NiceAddress laddr, raddr, laddr_rtcp, raddr_rtcp;
NiceCandidate *cdes;
GSList *cands;
guint ls_id, rs_id;
/* XXX: dear compiler, these are for you: */
(void)baseaddr;
cdes = nice_candidate_new (NICE_CANDIDATE_TYPE_HOST);
cdes->priority = 100000;
strcpy (cdes->foundation, "1");
cdes->transport = NICE_CANDIDATE_TRANSPORT_UDP;
/* step: initialize variables modified by the callbacks */
global_components_ready = 0;
global_components_ready_exit = 4;
global_components_failed = 0;
global_components_failed_exit = 4;
global_lagent_gathering_done = FALSE;
global_ragent_gathering_done = FALSE;
global_lagent_ibr_received =
global_ragent_ibr_received = FALSE;
global_lagent_cands =
global_ragent_cands = 0;
global_ragent_read_exit = -1;
g_object_set (G_OBJECT (lagent), "controlling-mode", TRUE, NULL);
g_object_set (G_OBJECT (ragent), "controlling-mode", FALSE, NULL);
/* step: add one stream, with RTP+RTCP components, to each agent */
ls_id = nice_agent_add_stream (lagent, 2);
rs_id = nice_agent_add_stream (ragent, 2);
g_assert_cmpuint (ls_id, >, 0);
g_assert_cmpuint (rs_id, >, 0);
nice_agent_gather_candidates (lagent, ls_id);
nice_agent_gather_candidates (ragent, rs_id);
/* step: attach to mainloop (needed to register the fds) */
nice_agent_attach_recv (lagent, ls_id, NICE_COMPONENT_TYPE_RTP,
g_main_loop_get_context (global_mainloop), cb_nice_recv, (gpointer)1);
nice_agent_attach_recv (lagent, ls_id, NICE_COMPONENT_TYPE_RTCP,
g_main_loop_get_context (global_mainloop), cb_nice_recv, (gpointer)1);
nice_agent_attach_recv (ragent, rs_id, NICE_COMPONENT_TYPE_RTP,
g_main_loop_get_context (global_mainloop), cb_nice_recv, (gpointer)2);
nice_agent_attach_recv (ragent, rs_id, NICE_COMPONENT_TYPE_RTCP,
g_main_loop_get_context (global_mainloop), cb_nice_recv, (gpointer)2);
/* step: run mainloop until local candidates are ready
* (see timer_cb() above) */
if (global_lagent_gathering_done != TRUE ||
global_ragent_gathering_done != TRUE) {
g_debug ("test-restart: Added streams, running mainloop until 'candidate-gathering-done'...");
g_main_loop_run (global_mainloop);
g_assert_true (global_lagent_gathering_done == TRUE);
g_assert_true (global_ragent_gathering_done == TRUE);
}
/* step: find out the local candidates of each agent */
priv_get_local_addr (ragent, rs_id, NICE_COMPONENT_TYPE_RTP, &raddr);
g_debug ("test-restart: local RTP port R %u",
nice_address_get_port (&raddr));
priv_get_local_addr (lagent, ls_id, NICE_COMPONENT_TYPE_RTP, &laddr);
g_debug ("test-restart: local RTP port L %u",
nice_address_get_port (&laddr));
priv_get_local_addr (ragent, rs_id, NICE_COMPONENT_TYPE_RTCP, &raddr_rtcp);
g_debug ("test-restart: local RTCP port R %u",
nice_address_get_port (&raddr_rtcp));
priv_get_local_addr (lagent, ls_id, NICE_COMPONENT_TYPE_RTCP, &laddr_rtcp);
g_debug ("test-restart: local RTCP port L %u",
nice_address_get_port (&laddr_rtcp));
/* step: pass the remote candidates to agents */
cands = g_slist_append (NULL, cdes);
{
gchar *ufrag = NULL, *password = NULL;
nice_agent_get_local_credentials(lagent, ls_id, &ufrag, &password);
nice_agent_set_remote_credentials (ragent,
rs_id, ufrag, password);
g_free (ufrag);
g_free (password);
nice_agent_get_local_credentials(ragent, rs_id, &ufrag, &password);
nice_agent_set_remote_credentials (lagent,
ls_id, ufrag, password);
g_free (ufrag);
g_free (password);
}
cdes->component_id = NICE_COMPONENT_TYPE_RTP;
cdes->addr = raddr;
nice_agent_set_remote_candidates (lagent, ls_id, NICE_COMPONENT_TYPE_RTP, cands);
cdes->addr = laddr;
nice_agent_set_remote_candidates (ragent, rs_id, NICE_COMPONENT_TYPE_RTP, cands);
cdes->component_id = NICE_COMPONENT_TYPE_RTCP;
cdes->addr = raddr_rtcp;
nice_agent_set_remote_candidates (lagent, ls_id, NICE_COMPONENT_TYPE_RTCP, cands);
cdes->addr = laddr_rtcp;
nice_agent_set_remote_candidates (ragent, rs_id, NICE_COMPONENT_TYPE_RTCP, cands);
/* This role switch request will be effective after restart. We test
* here that the role cannot be externally modified after conncheck
* has started. */
g_object_set (G_OBJECT (ragent), "controlling-mode", TRUE, NULL);
g_assert_true (ragent->controlling_mode == FALSE);
g_debug ("test-restart: Set properties, next running mainloop until connectivity checks succeed...");
/* step: run the mainloop until connectivity checks succeed
* (see timer_cb() above) */
g_main_loop_run (global_mainloop);
/* note: verify that STUN binding requests were sent */
g_assert_true (global_lagent_ibr_received == TRUE);
g_assert_true (global_ragent_ibr_received == TRUE);
/* note: verify that correct number of local candidates were reported */
g_assert_cmpint (global_lagent_cands, ==, 2);
g_assert_cmpint (global_ragent_cands, ==, 2);
/* note: verify that agents are in correct state */
g_assert_cmpint (global_lagent_state, ==, NICE_COMPONENT_STATE_READY);
g_assert_cmpint (global_ragent_state, ==, NICE_COMPONENT_STATE_READY);
/* step: next send a packet (should work during restart) and
* then request an ICE restart by resetting the remote
* candidates for agent R */
g_debug ("-------------------------------------------\n"
"test-restart: Requesting a RESTART...");
/* step: send a new test packet from L ot R */
global_ragent_read = 0;
g_assert_cmpint (nice_agent_send (lagent, ls_id, 1, 16, "1234567812345678"), ==, 16);
/* Both agent have a distinct role at the end of the conncheck */
g_assert_true (lagent->controlling_mode == TRUE);
g_assert_true (ragent->controlling_mode == FALSE);
/* step: restart agents, exchange updated credentials */
nice_agent_restart (ragent);
nice_agent_restart (lagent);
{
gchar *ufrag = NULL, *password = NULL;
nice_agent_get_local_credentials(lagent, ls_id, &ufrag, &password);
nice_agent_set_remote_credentials (ragent,
rs_id, ufrag, password);
g_free (ufrag);
g_free (password);
nice_agent_get_local_credentials(ragent, rs_id, &ufrag, &password);
nice_agent_set_remote_credentials (lagent,
ls_id, ufrag, password);
g_free (ufrag);
g_free (password);
}
/* send another packet after restart */
g_assert_cmpint (nice_agent_send (lagent, ls_id, 1, 16, "1234567812345678"), ==, 16);
/* step: reset state variables */
global_lagent_ibr_received = FALSE;
global_ragent_ibr_received = FALSE;
global_components_ready = 0;
/* step: exchange remote candidates */
cdes->component_id = NICE_COMPONENT_TYPE_RTP;
cdes->addr = raddr;
nice_agent_set_remote_candidates (lagent, ls_id, NICE_COMPONENT_TYPE_RTP, cands);
cdes->addr = laddr;
nice_agent_set_remote_candidates (ragent, rs_id, NICE_COMPONENT_TYPE_RTP, cands);
cdes->component_id = NICE_COMPONENT_TYPE_RTCP;
cdes->addr = raddr_rtcp;
nice_agent_set_remote_candidates (lagent, ls_id, NICE_COMPONENT_TYPE_RTCP, cands);
cdes->addr = laddr_rtcp;
nice_agent_set_remote_candidates (ragent, rs_id, NICE_COMPONENT_TYPE_RTCP, cands);
g_main_loop_run (global_mainloop);
/* note: verify that payload was succesfully received */
g_assert_cmpint (global_ragent_read, ==, 32);
/* note: verify binding requests were resent after restart */
g_assert_true (global_lagent_ibr_received == TRUE);
g_assert_true (global_ragent_ibr_received == TRUE);
/* note: verify that a role switch occured for one of the agents */
g_assert_true (ragent->controlling_mode != lagent->controlling_mode);
g_debug ("test-restart: Ran mainloop, removing streams...");
/* step: clean up resources and exit */
g_slist_free (cands);
nice_candidate_free (cdes);
nice_agent_remove_stream (lagent, ls_id);
nice_agent_remove_stream (ragent, rs_id);
return 0;
}
int main (void)
{
NiceAgent *lagent, *ragent; /* agent's L and R */
NiceAddress baseaddr;
int result;
guint timer_id;
const char *stun_server = NULL, *stun_server_port = NULL;
#ifdef G_OS_WIN32
WSADATA w;
WSAStartup(0x0202, &w);
#endif
global_mainloop = g_main_loop_new (NULL, FALSE);
/* Note: impl limits ...
* - no multi-stream support
* - no IPv6 support
*/
/* step: create the agents L and R */
lagent = nice_agent_new (g_main_loop_get_context (global_mainloop), NICE_COMPATIBILITY_RFC5245);
ragent = nice_agent_new (g_main_loop_get_context (global_mainloop), NICE_COMPATIBILITY_RFC5245);
g_object_set (G_OBJECT (lagent), "ice-tcp", FALSE, NULL);
g_object_set (G_OBJECT (ragent), "ice-tcp", FALSE, NULL);
g_object_set (G_OBJECT (lagent), "upnp", FALSE, NULL);
g_object_set (G_OBJECT (ragent), "upnp", FALSE, NULL);
/* step: add a timer to catch state changes triggered by signals */
timer_id = g_timeout_add (30000, timer_cb, NULL);
/* step: specify which local interface to use */
if (!nice_address_set_from_string (&baseaddr, "127.0.0.1"))
g_assert_not_reached ();
nice_agent_add_local_address (lagent, &baseaddr);
nice_agent_add_local_address (ragent, &baseaddr);
g_signal_connect (G_OBJECT (lagent), "candidate-gathering-done",
G_CALLBACK (cb_candidate_gathering_done), (gpointer)1);
g_signal_connect (G_OBJECT (ragent), "candidate-gathering-done",
G_CALLBACK (cb_candidate_gathering_done), (gpointer)2);
g_signal_connect (G_OBJECT (lagent), "component-state-changed",
G_CALLBACK (cb_component_state_changed), (gpointer)1);
g_signal_connect (G_OBJECT (ragent), "component-state-changed",
G_CALLBACK (cb_component_state_changed), (gpointer)2);
g_signal_connect (G_OBJECT (lagent), "new-selected-pair",
G_CALLBACK (cb_new_selected_pair), (gpointer)1);
g_signal_connect (G_OBJECT (ragent), "new-selected-pair",
G_CALLBACK (cb_new_selected_pair), (gpointer)2);
g_signal_connect (G_OBJECT (lagent), "new-candidate",
G_CALLBACK (cb_new_candidate), (gpointer)1);
g_signal_connect (G_OBJECT (ragent), "new-candidate",
G_CALLBACK (cb_new_candidate), (gpointer)2);
g_signal_connect (G_OBJECT (lagent), "initial-binding-request-received",
G_CALLBACK (cb_initial_binding_request_received), (gpointer)1);
g_signal_connect (G_OBJECT (ragent), "initial-binding-request-received",
G_CALLBACK (cb_initial_binding_request_received), (gpointer)2);
stun_server = getenv ("NICE_STUN_SERVER");
stun_server_port = getenv ("NICE_STUN_SERVER_PORT");
if (stun_server) {
g_object_set (G_OBJECT (lagent), "stun-server", stun_server, NULL);
g_object_set (G_OBJECT (lagent), "stun-server-port", atoi (stun_server_port), NULL);
g_object_set (G_OBJECT (ragent), "stun-server", stun_server, NULL);
g_object_set (G_OBJECT (ragent), "stun-server-port", atoi (stun_server_port), NULL);
}
/* step: run test the first time */
g_debug ("test-restart: TEST STARTS / restart test");
result = run_restart_test (lagent, ragent, &baseaddr);
priv_print_global_status ();
g_assert_cmpint (result, ==, 0);
g_assert_cmpint (global_lagent_state, ==, NICE_COMPONENT_STATE_READY);
g_assert_cmpint (global_ragent_state, ==, NICE_COMPONENT_STATE_READY);
g_object_unref (lagent);
g_object_unref (ragent);
g_main_loop_unref (global_mainloop);
global_mainloop = NULL;
g_source_remove (timer_id);
#ifdef G_OS_WIN32
WSACleanup();
#endif
return result;
}
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