/* $Id$ */ /* * Copyright (C) 2003-2007 Benny Prijono * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include "test.h" #define THIS_FILE "ice_test.c" struct ice_data { const char *obj_name; pj_bool_t complete; pj_status_t err_code; unsigned rx_rtp_cnt; unsigned rx_rtcp_cnt; unsigned rx_rtp_count; char last_rx_rtp_data[32]; unsigned rx_rtcp_count; char last_rx_rtcp_data[32]; }; static pj_stun_config stun_cfg; static void on_ice_complete(pj_ice_strans *icest, pj_status_t status) { struct ice_data *id = (struct ice_data*) icest->user_data; id->complete = PJ_TRUE; id->err_code = status; PJ_LOG(3,(THIS_FILE, " ICE %s complete %s", id->obj_name, (status==PJ_SUCCESS ? "successfully" : "with failure"))); } static void on_rx_data(pj_ice_strans *icest, unsigned comp_id, void *pkt, pj_size_t size, const pj_sockaddr_t *src_addr, unsigned src_addr_len) { struct ice_data *id = (struct ice_data*) icest->user_data; if (comp_id == 1) { id->rx_rtp_cnt++; pj_memcpy(id->last_rx_rtp_data, pkt, size); id->last_rx_rtp_data[size] = '\0'; } else if (comp_id == 2) { id->rx_rtcp_cnt++; pj_memcpy(id->last_rx_rtcp_data, pkt, size); id->last_rx_rtcp_data[size] = '\0'; } else { pj_assert(!"Invalid component ID"); } PJ_UNUSED_ARG(src_addr); PJ_UNUSED_ARG(src_addr_len); } static void handle_events(unsigned msec_timeout) { pj_time_val delay; pj_timer_heap_poll(stun_cfg.timer_heap, NULL); delay.sec = 0; delay.msec = msec_timeout; pj_time_val_normalize(&delay); pj_ioqueue_poll(stun_cfg.ioqueue, &delay); } /* Basic create and destroy test */ static int ice_basic_create_destroy_test() { pj_ice_strans *im; pj_ice_strans_cb icest_cb; pj_status_t status; PJ_LOG(3,(THIS_FILE, "...basic create/destroy")); pj_bzero(&icest_cb, sizeof(icest_cb)); icest_cb.on_ice_complete = &on_ice_complete; icest_cb.on_rx_data = &on_rx_data; status = pj_ice_strans_create(&stun_cfg, "icetest", 2, NULL, &icest_cb, &im); if (status != PJ_SUCCESS) return -10; pj_ice_strans_destroy(im); return 0; } static pj_status_t start_ice(pj_ice_strans *ist, pj_ice_strans *remote) { unsigned count; pj_ice_sess_cand cand[PJ_ICE_MAX_CAND]; pj_status_t status; count = PJ_ARRAY_SIZE(cand); status = pj_ice_strans_enum_cands(remote, &count, cand); if (status != PJ_SUCCESS) return status; return pj_ice_strans_start_ice(ist, &remote->ice->rx_ufrag, &remote->ice->rx_pass, count, cand); } struct dummy_cand { unsigned comp_id; pj_ice_cand_type type; const char *addr; unsigned port; }; static int init_ice_st(pj_ice_strans *ice_st, pj_bool_t add_valid_comp, unsigned dummy_cnt, struct dummy_cand cand[]) { pj_str_t a; pj_status_t status; unsigned i; /* Create components */ for (i=0; icomp_cnt; ++i) { status = pj_ice_strans_create_comp(ice_st, i+1, PJ_ICE_ST_OPT_DONT_ADD_CAND, NULL); if (status != PJ_SUCCESS) return -21; } /* Add dummy candidates */ for (i=0; icomp_cnt; ++i) { status = pj_ice_strans_add_cand(ice_st, i+1, PJ_ICE_CAND_TYPE_HOST, 65535, &ice_st->comp[i]->local_addr.ipv4, PJ_TRUE); if (status != PJ_SUCCESS) return -23; } } return 0; } /* When ICE completes, both agents should agree on the same candidate pair. * Check that the remote address selected by agent1 is equal to the * local address of selected by agent 2. */ static int verify_address(pj_ice_strans *agent1, pj_ice_strans *agent2, unsigned comp_id) { pj_ice_sess_cand *rcand, *lcand; int lcand_id; if (agent1->ice->comp[comp_id-1].valid_check == NULL) { PJ_LOG(3,(THIS_FILE, "....error: valid_check not set for comp_id %d", comp_id)); return -60; } /* Get default remote candidate of agent 1 */ rcand = agent1->ice->comp[comp_id-1].valid_check->rcand; /* Get default local candidate of agent 2 */ pj_ice_sess_find_default_cand(agent2->ice, comp_id, &lcand_id); if (lcand_id < 0) return -62; lcand = &agent2->ice->lcand[lcand_id]; if (pj_memcmp(&rcand->addr, &lcand->addr, sizeof(pj_sockaddr_in))!=0) { PJ_LOG(3,(THIS_FILE, "....error: the selected addresses are incorrect for comp_id %d", comp_id)); return -64; } return 0; } /* Perform ICE test with the following parameters: * * - title: The title of the test * - ocand_cnt, * ocand Additional candidates to be added to offerer * - acand_cnt, * acand Additional candidates to be added to answerer * * The additional candidates are normally invalid candidates, meaning * they won't be reachable by the agents. They are used to "confuse" * ICE processing. */ static int perform_ice_test(const char *title, pj_bool_t expected_success, unsigned comp_cnt, pj_bool_t add_valid_comp, unsigned wait_before_send, unsigned max_total_time, unsigned ocand_cnt, struct dummy_cand ocand[], unsigned acand_cnt, struct dummy_cand acand[]) { pj_ice_strans *im1, *im2; pj_ice_strans_cb icest_cb; struct ice_data *id1, *id2; pj_timestamp t_start, t_end; unsigned i; pj_str_t data_from_offerer, data_from_answerer; pj_status_t status; #define CHECK_COMPLETE() if (id1->complete && id2->complete) { \ if (t_end.u32.lo==0) pj_get_timestamp(&t_end); \ } else {} PJ_LOG(3,(THIS_FILE, "...%s", title)); pj_bzero(&t_end, sizeof(t_end)); pj_bzero(&icest_cb, sizeof(icest_cb)); icest_cb.on_ice_complete = &on_ice_complete; icest_cb.on_rx_data = &on_rx_data; /* Create first ICE */ status = pj_ice_strans_create(&stun_cfg, "offerer", comp_cnt, NULL, &icest_cb, &im1); if (status != PJ_SUCCESS) return -20; id1 = PJ_POOL_ZALLOC_T(im1->pool, struct ice_data); id1->obj_name = "offerer"; im1->user_data = id1; /* Init components */ status = init_ice_st(im1, add_valid_comp, ocand_cnt, ocand); if (status != 0) return status; /* Create second ICE */ status = pj_ice_strans_create(&stun_cfg, "answerer", comp_cnt, NULL, &icest_cb, &im2); if (status != PJ_SUCCESS) return -25; id2 = PJ_POOL_ZALLOC_T(im2->pool, struct ice_data); id2->obj_name = "answerer"; im2->user_data = id2; /* Init components */ status = init_ice_st(im2, add_valid_comp, acand_cnt, acand); if (status != 0) return status; /* Init ICE on im1 */ status = pj_ice_strans_init_ice(im1, PJ_ICE_SESS_ROLE_CONTROLLING, NULL, NULL); if (status != PJ_SUCCESS) return -29; /* Init ICE on im2 */ status = pj_ice_strans_init_ice(im2, PJ_ICE_SESS_ROLE_CONTROLLED, NULL, NULL); if (status != PJ_SUCCESS) return -29; /* Start ICE on im2 */ status = start_ice(im2, im1); if (status != PJ_SUCCESS) return -30; /* Start ICE on im1 */ status = start_ice(im1, im2); if (status != PJ_SUCCESS) return -35; /* Apply delay to let other checks commence */ pj_thread_sleep(40); /* Mark start time */ pj_get_timestamp(&t_start); /* Poll for wait_before_send msecs before we send the first data */ if (expected_success) { for (;;) { pj_timestamp t_now; handle_events(1); CHECK_COMPLETE(); pj_get_timestamp(&t_now); if (pj_elapsed_msec(&t_start, &t_now) >= wait_before_send) break; } /* Send data. It must be successful! */ data_from_offerer = pj_str("from offerer"); status = pj_ice_sess_send_data(im1->ice, 1, data_from_offerer.ptr, data_from_offerer.slen); if (status != PJ_SUCCESS) return -47; data_from_answerer = pj_str("from answerer"); status = pj_ice_sess_send_data(im2->ice, 1, data_from_answerer.ptr, data_from_answerer.slen); if (status != PJ_SUCCESS) return -48; /* Poll to allow data to be received */ for (;;) { pj_timestamp t_now; handle_events(1); CHECK_COMPLETE(); pj_get_timestamp(&t_now); if (pj_elapsed_msec(&t_start, &t_now) >= (wait_before_send + 200)) break; } } /* Just wait until both completes, or timed out */ while (!id1->complete || !id2->complete) { pj_timestamp t_now; handle_events(1); CHECK_COMPLETE(); pj_get_timestamp(&t_now); if (pj_elapsed_msec(&t_start, &t_now) >= max_total_time) { PJ_LOG(3,(THIS_FILE, "....error: timed-out")); return -50; } } /* Mark end-time */ CHECK_COMPLETE(); /* If expected to fail, then just check that both fail */ if (!expected_success) { /* Check status */ if (id1->err_code == PJ_SUCCESS) return -51; if (id2->err_code == PJ_SUCCESS) return -52; goto on_return; } /* Check status */ if (id1->err_code != PJ_SUCCESS) return -53; if (id2->err_code != PJ_SUCCESS) return -56; /* Verify that offerer gets answerer's transport address */ for (i=0; irx_rtp_cnt != 1) { PJ_LOG(3,(THIS_FILE, "....error: data not received in offerer")); return -80; } if (pj_strcmp2(&data_from_answerer, id1->last_rx_rtp_data) != 0) { PJ_LOG(3,(THIS_FILE, "....error: data mismatch in offerer")); return -82; } /* And the same in answerer */ if (id2->rx_rtp_cnt != 1) { PJ_LOG(3,(THIS_FILE, "....error: data not received in answerer")); return -84; } if (pj_strcmp2(&data_from_offerer, id2->last_rx_rtp_data) != 0) { PJ_LOG(3,(THIS_FILE, "....error: data mismatch in answerer")); return -82; } on_return: /* Done */ PJ_LOG(3,(THIS_FILE, "....success: ICE completed in %d msec, waiting..", pj_elapsed_msec(&t_start, &t_end))); /* Wait for some more time */ for (;;) { pj_timestamp t_now; pj_get_timestamp(&t_now); if (pj_elapsed_msec(&t_start, &t_now) > max_total_time) break; handle_events(1); } pj_ice_strans_destroy(im1); pj_ice_strans_destroy(im2); handle_events(100); return 0; } int ice_test(void) { int rc = 0; pj_pool_t *pool; pj_ioqueue_t *ioqueue; pj_timer_heap_t *timer_heap; enum { D1=500, D2=5000, D3=15000 }; struct dummy_cand ocand[] = { {1, PJ_ICE_CAND_TYPE_SRFLX, "127.1.1.1", 65534 }, {2, PJ_ICE_CAND_TYPE_SRFLX, "127.1.1.1", 65535 }, }; struct dummy_cand acand[] = { {1, PJ_ICE_CAND_TYPE_SRFLX, "127.2.2.2", 65534 }, {2, PJ_ICE_CAND_TYPE_SRFLX, "127.2.2.2", 65535 }, }; pool = pj_pool_create(mem, NULL, 4000, 4000, NULL); pj_ioqueue_create(pool, 12, &ioqueue); pj_timer_heap_create(pool, 100, &timer_heap); pj_stun_config_init(&stun_cfg, mem, 0, ioqueue, timer_heap); #if 1 pj_log_set_level(5); #endif goto test; /* Basic create/destroy */ rc = ice_basic_create_destroy_test(); if (rc != 0) goto on_return; /* Direct communication */ rc = perform_ice_test("Simple test (1 component)", PJ_TRUE, 1, PJ_TRUE, D1, D2, 0, NULL, 0, NULL); if (rc != 0) goto on_return; /* Failure case (all checks fail) */ rc = perform_ice_test("Failure case (all checks fail)", PJ_FALSE, 1, PJ_FALSE, D3, D3, 1, ocand, 1, acand); if (rc != 0) goto on_return; /* Direct communication with invalid address */ rc = perform_ice_test("With 1 unreachable address", PJ_TRUE, 1, PJ_TRUE, D1, D2, 1, ocand, 0, NULL); if (rc != 0) goto on_return; /* Direct communication with invalid address */ rc = perform_ice_test("With 2 unreachable addresses (one each)", PJ_TRUE, 1, PJ_TRUE, D1, D2, 1, ocand, 1, acand); if (rc != 0) goto on_return; /* Direct communication with two components */ test: rc = perform_ice_test("With two components (RTP and RTCP)", PJ_TRUE, 2, PJ_TRUE, D1, D2, 0, NULL, 0, NULL); if (rc != 0) goto on_return; goto on_return; /* Direct communication with mismatch number of components */ /* Direct communication with 2 components and 2 invalid address */ rc = perform_ice_test("With 2 two components and 2 unreachable address", PJ_TRUE, 2, PJ_TRUE, D1, D2, 1, ocand, 1, acand); if (rc != 0) goto on_return; on_return: pj_log_set_level(3); pj_ioqueue_destroy(stun_cfg.ioqueue); pj_pool_release(pool); return rc; }