Alexandre Lision | 8af73cb | 2013-12-10 14:11:20 -0500 | [diff] [blame] | 1 | /* $Id$ */ |
| 2 | /* |
| 3 | * Copyright (C) 2008-2011 Teluu Inc. (http://www.teluu.com) |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify |
| 6 | * it under the terms of the GNU General Public License as published by |
| 7 | * the Free Software Foundation; either version 2 of the License, or |
| 8 | * (at your option) any later version. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License |
| 16 | * along with this program; if not, write to the Free Software |
| 17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 18 | */ |
| 19 | #include <stdio.h> |
| 20 | #include <stdlib.h> |
| 21 | #include <pjlib.h> |
| 22 | #include <pjlib-util.h> |
| 23 | #include <pjnath.h> |
| 24 | |
| 25 | |
| 26 | #define THIS_FILE "icedemo.c" |
| 27 | |
| 28 | /* For this demo app, configure longer STUN keep-alive time |
| 29 | * so that it does't clutter the screen output. |
| 30 | */ |
| 31 | #define KA_INTERVAL 300 |
| 32 | |
| 33 | |
| 34 | /* This is our global variables */ |
| 35 | static struct app_t |
| 36 | { |
| 37 | /* Command line options are stored here */ |
| 38 | struct options |
| 39 | { |
| 40 | unsigned comp_cnt; |
| 41 | pj_str_t ns; |
| 42 | int max_host; |
| 43 | pj_bool_t regular; |
| 44 | pj_str_t stun_srv; |
| 45 | pj_str_t turn_srv; |
| 46 | pj_bool_t turn_tcp; |
| 47 | pj_str_t turn_username; |
| 48 | pj_str_t turn_password; |
| 49 | pj_bool_t turn_fingerprint; |
| 50 | const char *log_file; |
| 51 | } opt; |
| 52 | |
| 53 | /* Our global variables */ |
| 54 | pj_caching_pool cp; |
| 55 | pj_pool_t *pool; |
| 56 | pj_thread_t *thread; |
| 57 | pj_bool_t thread_quit_flag; |
| 58 | pj_ice_strans_cfg ice_cfg; |
| 59 | pj_ice_strans *icest; |
| 60 | FILE *log_fhnd; |
| 61 | |
| 62 | /* Variables to store parsed remote ICE info */ |
| 63 | struct rem_info |
| 64 | { |
| 65 | char ufrag[80]; |
| 66 | char pwd[80]; |
| 67 | unsigned comp_cnt; |
| 68 | pj_sockaddr def_addr[PJ_ICE_MAX_COMP]; |
| 69 | unsigned cand_cnt; |
| 70 | pj_ice_sess_cand cand[PJ_ICE_ST_MAX_CAND]; |
| 71 | } rem; |
| 72 | |
| 73 | } icedemo; |
| 74 | |
| 75 | /* Utility to display error messages */ |
| 76 | static void icedemo_perror(const char *title, pj_status_t status) |
| 77 | { |
| 78 | char errmsg[PJ_ERR_MSG_SIZE]; |
| 79 | |
| 80 | pj_strerror(status, errmsg, sizeof(errmsg)); |
| 81 | PJ_LOG(1,(THIS_FILE, "%s: %s", title, errmsg)); |
| 82 | } |
| 83 | |
| 84 | /* Utility: display error message and exit application (usually |
| 85 | * because of fatal error. |
| 86 | */ |
| 87 | static void err_exit(const char *title, pj_status_t status) |
| 88 | { |
| 89 | if (status != PJ_SUCCESS) { |
| 90 | icedemo_perror(title, status); |
| 91 | } |
| 92 | PJ_LOG(3,(THIS_FILE, "Shutting down..")); |
| 93 | |
| 94 | if (icedemo.icest) |
| 95 | pj_ice_strans_destroy(icedemo.icest); |
| 96 | |
| 97 | pj_thread_sleep(500); |
| 98 | |
| 99 | icedemo.thread_quit_flag = PJ_TRUE; |
| 100 | if (icedemo.thread) { |
| 101 | pj_thread_join(icedemo.thread); |
| 102 | pj_thread_destroy(icedemo.thread); |
| 103 | } |
| 104 | |
| 105 | if (icedemo.ice_cfg.stun_cfg.ioqueue) |
| 106 | pj_ioqueue_destroy(icedemo.ice_cfg.stun_cfg.ioqueue); |
| 107 | |
| 108 | if (icedemo.ice_cfg.stun_cfg.timer_heap) |
| 109 | pj_timer_heap_destroy(icedemo.ice_cfg.stun_cfg.timer_heap); |
| 110 | |
| 111 | pj_caching_pool_destroy(&icedemo.cp); |
| 112 | |
| 113 | pj_shutdown(); |
| 114 | |
| 115 | if (icedemo.log_fhnd) { |
| 116 | fclose(icedemo.log_fhnd); |
| 117 | icedemo.log_fhnd = NULL; |
| 118 | } |
| 119 | |
| 120 | exit(status != PJ_SUCCESS); |
| 121 | } |
| 122 | |
| 123 | #define CHECK(expr) status=expr; \ |
| 124 | if (status!=PJ_SUCCESS) { \ |
| 125 | err_exit(#expr, status); \ |
| 126 | } |
| 127 | |
| 128 | /* |
| 129 | * This function checks for events from both timer and ioqueue (for |
| 130 | * network events). It is invoked by the worker thread. |
| 131 | */ |
| 132 | static pj_status_t handle_events(unsigned max_msec, unsigned *p_count) |
| 133 | { |
| 134 | enum { MAX_NET_EVENTS = 1 }; |
| 135 | pj_time_val max_timeout = {0, 0}; |
| 136 | pj_time_val timeout = { 0, 0}; |
| 137 | unsigned count = 0, net_event_count = 0; |
| 138 | int c; |
| 139 | |
| 140 | max_timeout.msec = max_msec; |
| 141 | |
| 142 | /* Poll the timer to run it and also to retrieve the earliest entry. */ |
| 143 | timeout.sec = timeout.msec = 0; |
| 144 | c = pj_timer_heap_poll( icedemo.ice_cfg.stun_cfg.timer_heap, &timeout ); |
| 145 | if (c > 0) |
| 146 | count += c; |
| 147 | |
| 148 | /* timer_heap_poll should never ever returns negative value, or otherwise |
| 149 | * ioqueue_poll() will block forever! |
| 150 | */ |
| 151 | pj_assert(timeout.sec >= 0 && timeout.msec >= 0); |
| 152 | if (timeout.msec >= 1000) timeout.msec = 999; |
| 153 | |
| 154 | /* compare the value with the timeout to wait from timer, and use the |
| 155 | * minimum value. |
| 156 | */ |
| 157 | if (PJ_TIME_VAL_GT(timeout, max_timeout)) |
| 158 | timeout = max_timeout; |
| 159 | |
| 160 | /* Poll ioqueue. |
| 161 | * Repeat polling the ioqueue while we have immediate events, because |
| 162 | * timer heap may process more than one events, so if we only process |
| 163 | * one network events at a time (such as when IOCP backend is used), |
| 164 | * the ioqueue may have trouble keeping up with the request rate. |
| 165 | * |
| 166 | * For example, for each send() request, one network event will be |
| 167 | * reported by ioqueue for the send() completion. If we don't poll |
| 168 | * the ioqueue often enough, the send() completion will not be |
| 169 | * reported in timely manner. |
| 170 | */ |
| 171 | do { |
| 172 | c = pj_ioqueue_poll( icedemo.ice_cfg.stun_cfg.ioqueue, &timeout); |
| 173 | if (c < 0) { |
| 174 | pj_status_t err = pj_get_netos_error(); |
| 175 | pj_thread_sleep(PJ_TIME_VAL_MSEC(timeout)); |
| 176 | if (p_count) |
| 177 | *p_count = count; |
| 178 | return err; |
| 179 | } else if (c == 0) { |
| 180 | break; |
| 181 | } else { |
| 182 | net_event_count += c; |
| 183 | timeout.sec = timeout.msec = 0; |
| 184 | } |
| 185 | } while (c > 0 && net_event_count < MAX_NET_EVENTS); |
| 186 | |
| 187 | count += net_event_count; |
| 188 | if (p_count) |
| 189 | *p_count = count; |
| 190 | |
| 191 | return PJ_SUCCESS; |
| 192 | |
| 193 | } |
| 194 | |
| 195 | /* |
| 196 | * This is the worker thread that polls event in the background. |
| 197 | */ |
| 198 | static int icedemo_worker_thread(void *unused) |
| 199 | { |
| 200 | PJ_UNUSED_ARG(unused); |
| 201 | |
| 202 | while (!icedemo.thread_quit_flag) { |
| 203 | handle_events(500, NULL); |
| 204 | } |
| 205 | |
| 206 | return 0; |
| 207 | } |
| 208 | |
| 209 | /* |
| 210 | * This is the callback that is registered to the ICE stream transport to |
| 211 | * receive notification about incoming data. By "data" it means application |
| 212 | * data such as RTP/RTCP, and not packets that belong to ICE signaling (such |
| 213 | * as STUN connectivity checks or TURN signaling). |
| 214 | */ |
| 215 | static void cb_on_rx_data(pj_ice_strans *ice_st, |
| 216 | unsigned comp_id, |
| 217 | void *pkt, pj_size_t size, |
| 218 | const pj_sockaddr_t *src_addr, |
| 219 | unsigned src_addr_len) |
| 220 | { |
| 221 | char ipstr[PJ_INET6_ADDRSTRLEN+10]; |
| 222 | |
| 223 | PJ_UNUSED_ARG(ice_st); |
| 224 | PJ_UNUSED_ARG(src_addr_len); |
| 225 | PJ_UNUSED_ARG(pkt); |
| 226 | |
| 227 | // Don't do this! It will ruin the packet buffer in case TCP is used! |
| 228 | //((char*)pkt)[size] = '\0'; |
| 229 | |
| 230 | PJ_LOG(3,(THIS_FILE, "Component %d: received %d bytes data from %s: \"%.*s\"", |
| 231 | comp_id, size, |
| 232 | pj_sockaddr_print(src_addr, ipstr, sizeof(ipstr), 3), |
| 233 | (unsigned)size, |
| 234 | (char*)pkt)); |
| 235 | } |
| 236 | |
| 237 | /* |
| 238 | * This is the callback that is registered to the ICE stream transport to |
| 239 | * receive notification about ICE state progression. |
| 240 | */ |
| 241 | static void cb_on_ice_complete(pj_ice_strans *ice_st, |
| 242 | pj_ice_strans_op op, |
| 243 | pj_status_t status) |
| 244 | { |
| 245 | const char *opname = |
| 246 | (op==PJ_ICE_STRANS_OP_INIT? "initialization" : |
| 247 | (op==PJ_ICE_STRANS_OP_NEGOTIATION ? "negotiation" : "unknown_op")); |
| 248 | |
| 249 | if (status == PJ_SUCCESS) { |
| 250 | PJ_LOG(3,(THIS_FILE, "ICE %s successful", opname)); |
| 251 | } else { |
| 252 | char errmsg[PJ_ERR_MSG_SIZE]; |
| 253 | |
| 254 | pj_strerror(status, errmsg, sizeof(errmsg)); |
| 255 | PJ_LOG(1,(THIS_FILE, "ICE %s failed: %s", opname, errmsg)); |
| 256 | pj_ice_strans_destroy(ice_st); |
| 257 | icedemo.icest = NULL; |
| 258 | } |
| 259 | } |
| 260 | |
| 261 | /* log callback to write to file */ |
| 262 | static void log_func(int level, const char *data, int len) |
| 263 | { |
| 264 | pj_log_write(level, data, len); |
| 265 | if (icedemo.log_fhnd) { |
| 266 | if (fwrite(data, len, 1, icedemo.log_fhnd) != 1) |
| 267 | return; |
| 268 | } |
| 269 | } |
| 270 | |
| 271 | /* |
| 272 | * This is the main application initialization function. It is called |
| 273 | * once (and only once) during application initialization sequence by |
| 274 | * main(). |
| 275 | */ |
| 276 | static pj_status_t icedemo_init(void) |
| 277 | { |
| 278 | pj_status_t status; |
| 279 | |
| 280 | if (icedemo.opt.log_file) { |
| 281 | icedemo.log_fhnd = fopen(icedemo.opt.log_file, "a"); |
| 282 | pj_log_set_log_func(&log_func); |
| 283 | } |
| 284 | |
| 285 | /* Initialize the libraries before anything else */ |
| 286 | CHECK( pj_init() ); |
| 287 | CHECK( pjlib_util_init() ); |
| 288 | CHECK( pjnath_init() ); |
| 289 | |
| 290 | /* Must create pool factory, where memory allocations come from */ |
| 291 | pj_caching_pool_init(&icedemo.cp, NULL, 0); |
| 292 | |
| 293 | /* Init our ICE settings with null values */ |
| 294 | pj_ice_strans_cfg_default(&icedemo.ice_cfg); |
| 295 | |
| 296 | icedemo.ice_cfg.stun_cfg.pf = &icedemo.cp.factory; |
| 297 | |
| 298 | /* Create application memory pool */ |
| 299 | icedemo.pool = pj_pool_create(&icedemo.cp.factory, "icedemo", |
| 300 | 512, 512, NULL); |
| 301 | |
| 302 | /* Create timer heap for timer stuff */ |
| 303 | CHECK( pj_timer_heap_create(icedemo.pool, 100, |
| 304 | &icedemo.ice_cfg.stun_cfg.timer_heap) ); |
| 305 | |
| 306 | /* and create ioqueue for network I/O stuff */ |
| 307 | CHECK( pj_ioqueue_create(icedemo.pool, 16, |
| 308 | &icedemo.ice_cfg.stun_cfg.ioqueue) ); |
| 309 | |
| 310 | /* something must poll the timer heap and ioqueue, |
| 311 | * unless we're on Symbian where the timer heap and ioqueue run |
| 312 | * on themselves. |
| 313 | */ |
| 314 | CHECK( pj_thread_create(icedemo.pool, "icedemo", &icedemo_worker_thread, |
| 315 | NULL, 0, 0, &icedemo.thread) ); |
| 316 | |
| 317 | icedemo.ice_cfg.af = pj_AF_INET(); |
| 318 | |
| 319 | /* Create DNS resolver if nameserver is set */ |
| 320 | if (icedemo.opt.ns.slen) { |
| 321 | CHECK( pj_dns_resolver_create(&icedemo.cp.factory, |
| 322 | "resolver", |
| 323 | 0, |
| 324 | icedemo.ice_cfg.stun_cfg.timer_heap, |
| 325 | icedemo.ice_cfg.stun_cfg.ioqueue, |
| 326 | &icedemo.ice_cfg.resolver) ); |
| 327 | |
| 328 | CHECK( pj_dns_resolver_set_ns(icedemo.ice_cfg.resolver, 1, |
| 329 | &icedemo.opt.ns, NULL) ); |
| 330 | } |
| 331 | |
| 332 | /* -= Start initializing ICE stream transport config =- */ |
| 333 | |
| 334 | /* Maximum number of host candidates */ |
| 335 | if (icedemo.opt.max_host != -1) |
| 336 | icedemo.ice_cfg.stun.max_host_cands = icedemo.opt.max_host; |
| 337 | |
| 338 | /* Nomination strategy */ |
| 339 | if (icedemo.opt.regular) |
| 340 | icedemo.ice_cfg.opt.aggressive = PJ_FALSE; |
| 341 | else |
| 342 | icedemo.ice_cfg.opt.aggressive = PJ_TRUE; |
| 343 | |
| 344 | /* Configure STUN/srflx candidate resolution */ |
| 345 | if (icedemo.opt.stun_srv.slen) { |
| 346 | char *pos; |
| 347 | |
| 348 | /* Command line option may contain port number */ |
| 349 | if ((pos=pj_strchr(&icedemo.opt.stun_srv, ':')) != NULL) { |
| 350 | icedemo.ice_cfg.stun.server.ptr = icedemo.opt.stun_srv.ptr; |
| 351 | icedemo.ice_cfg.stun.server.slen = (pos - icedemo.opt.stun_srv.ptr); |
| 352 | |
| 353 | icedemo.ice_cfg.stun.port = (pj_uint16_t)atoi(pos+1); |
| 354 | } else { |
| 355 | icedemo.ice_cfg.stun.server = icedemo.opt.stun_srv; |
| 356 | icedemo.ice_cfg.stun.port = PJ_STUN_PORT; |
| 357 | } |
| 358 | |
| 359 | /* For this demo app, configure longer STUN keep-alive time |
| 360 | * so that it does't clutter the screen output. |
| 361 | */ |
| 362 | icedemo.ice_cfg.stun.cfg.ka_interval = KA_INTERVAL; |
| 363 | } |
| 364 | |
| 365 | /* Configure TURN candidate */ |
| 366 | if (icedemo.opt.turn_srv.slen) { |
| 367 | char *pos; |
| 368 | |
| 369 | /* Command line option may contain port number */ |
| 370 | if ((pos=pj_strchr(&icedemo.opt.turn_srv, ':')) != NULL) { |
| 371 | icedemo.ice_cfg.turn.server.ptr = icedemo.opt.turn_srv.ptr; |
| 372 | icedemo.ice_cfg.turn.server.slen = (pos - icedemo.opt.turn_srv.ptr); |
| 373 | |
| 374 | icedemo.ice_cfg.turn.port = (pj_uint16_t)atoi(pos+1); |
| 375 | } else { |
| 376 | icedemo.ice_cfg.turn.server = icedemo.opt.turn_srv; |
| 377 | icedemo.ice_cfg.turn.port = PJ_STUN_PORT; |
| 378 | } |
| 379 | |
| 380 | /* TURN credential */ |
| 381 | icedemo.ice_cfg.turn.auth_cred.type = PJ_STUN_AUTH_CRED_STATIC; |
| 382 | icedemo.ice_cfg.turn.auth_cred.data.static_cred.username = icedemo.opt.turn_username; |
| 383 | icedemo.ice_cfg.turn.auth_cred.data.static_cred.data_type = PJ_STUN_PASSWD_PLAIN; |
| 384 | icedemo.ice_cfg.turn.auth_cred.data.static_cred.data = icedemo.opt.turn_password; |
| 385 | |
| 386 | /* Connection type to TURN server */ |
| 387 | if (icedemo.opt.turn_tcp) |
| 388 | icedemo.ice_cfg.turn.conn_type = PJ_TURN_TP_TCP; |
| 389 | else |
| 390 | icedemo.ice_cfg.turn.conn_type = PJ_TURN_TP_UDP; |
| 391 | |
| 392 | /* For this demo app, configure longer keep-alive time |
| 393 | * so that it does't clutter the screen output. |
| 394 | */ |
| 395 | icedemo.ice_cfg.turn.alloc_param.ka_interval = KA_INTERVAL; |
| 396 | } |
| 397 | |
| 398 | /* -= That's it for now, initialization is complete =- */ |
| 399 | return PJ_SUCCESS; |
| 400 | } |
| 401 | |
| 402 | |
| 403 | /* |
| 404 | * Create ICE stream transport instance, invoked from the menu. |
| 405 | */ |
| 406 | static void icedemo_create_instance(void) |
| 407 | { |
| 408 | pj_ice_strans_cb icecb; |
| 409 | pj_status_t status; |
| 410 | |
| 411 | if (icedemo.icest != NULL) { |
| 412 | puts("ICE instance already created, destroy it first"); |
| 413 | return; |
| 414 | } |
| 415 | |
| 416 | /* init the callback */ |
| 417 | pj_bzero(&icecb, sizeof(icecb)); |
| 418 | icecb.on_rx_data = cb_on_rx_data; |
| 419 | icecb.on_ice_complete = cb_on_ice_complete; |
| 420 | |
| 421 | /* create the instance */ |
| 422 | status = pj_ice_strans_create("icedemo", /* object name */ |
| 423 | &icedemo.ice_cfg, /* settings */ |
| 424 | icedemo.opt.comp_cnt, /* comp_cnt */ |
| 425 | NULL, /* user data */ |
| 426 | &icecb, /* callback */ |
| 427 | &icedemo.icest) /* instance ptr */ |
| 428 | ; |
| 429 | if (status != PJ_SUCCESS) |
| 430 | icedemo_perror("error creating ice", status); |
| 431 | else |
| 432 | PJ_LOG(3,(THIS_FILE, "ICE instance successfully created")); |
| 433 | } |
| 434 | |
| 435 | /* Utility to nullify parsed remote info */ |
| 436 | static void reset_rem_info(void) |
| 437 | { |
| 438 | pj_bzero(&icedemo.rem, sizeof(icedemo.rem)); |
| 439 | } |
| 440 | |
| 441 | |
| 442 | /* |
| 443 | * Destroy ICE stream transport instance, invoked from the menu. |
| 444 | */ |
| 445 | static void icedemo_destroy_instance(void) |
| 446 | { |
| 447 | if (icedemo.icest == NULL) { |
| 448 | PJ_LOG(1,(THIS_FILE, "Error: No ICE instance, create it first")); |
| 449 | return; |
| 450 | } |
| 451 | |
| 452 | pj_ice_strans_destroy(icedemo.icest); |
| 453 | icedemo.icest = NULL; |
| 454 | |
| 455 | reset_rem_info(); |
| 456 | |
| 457 | PJ_LOG(3,(THIS_FILE, "ICE instance destroyed")); |
| 458 | } |
| 459 | |
| 460 | |
| 461 | /* |
| 462 | * Create ICE session, invoked from the menu. |
| 463 | */ |
| 464 | static void icedemo_init_session(unsigned rolechar) |
| 465 | { |
| 466 | pj_ice_sess_role role = (pj_tolower((pj_uint8_t)rolechar)=='o' ? |
| 467 | PJ_ICE_SESS_ROLE_CONTROLLING : |
| 468 | PJ_ICE_SESS_ROLE_CONTROLLED); |
| 469 | pj_status_t status; |
| 470 | |
| 471 | if (icedemo.icest == NULL) { |
| 472 | PJ_LOG(1,(THIS_FILE, "Error: No ICE instance, create it first")); |
| 473 | return; |
| 474 | } |
| 475 | |
| 476 | if (pj_ice_strans_has_sess(icedemo.icest)) { |
| 477 | PJ_LOG(1,(THIS_FILE, "Error: Session already created")); |
| 478 | return; |
| 479 | } |
| 480 | |
| 481 | status = pj_ice_strans_init_ice(icedemo.icest, role, NULL, NULL); |
| 482 | if (status != PJ_SUCCESS) |
| 483 | icedemo_perror("error creating session", status); |
| 484 | else |
| 485 | PJ_LOG(3,(THIS_FILE, "ICE session created")); |
| 486 | |
| 487 | reset_rem_info(); |
| 488 | } |
| 489 | |
| 490 | |
| 491 | /* |
| 492 | * Stop/destroy ICE session, invoked from the menu. |
| 493 | */ |
| 494 | static void icedemo_stop_session(void) |
| 495 | { |
| 496 | pj_status_t status; |
| 497 | |
| 498 | if (icedemo.icest == NULL) { |
| 499 | PJ_LOG(1,(THIS_FILE, "Error: No ICE instance, create it first")); |
| 500 | return; |
| 501 | } |
| 502 | |
| 503 | if (!pj_ice_strans_has_sess(icedemo.icest)) { |
| 504 | PJ_LOG(1,(THIS_FILE, "Error: No ICE session, initialize first")); |
| 505 | return; |
| 506 | } |
| 507 | |
| 508 | status = pj_ice_strans_stop_ice(icedemo.icest); |
| 509 | if (status != PJ_SUCCESS) |
| 510 | icedemo_perror("error stopping session", status); |
| 511 | else |
| 512 | PJ_LOG(3,(THIS_FILE, "ICE session stopped")); |
| 513 | |
| 514 | reset_rem_info(); |
| 515 | } |
| 516 | |
| 517 | #define PRINT(...) \ |
| 518 | printed = pj_ansi_snprintf(p, maxlen - (p-buffer), \ |
| 519 | __VA_ARGS__); \ |
| 520 | if (printed <= 0 || printed >= (int)(maxlen - (p-buffer))) \ |
| 521 | return -PJ_ETOOSMALL; \ |
| 522 | p += printed |
| 523 | |
| 524 | |
| 525 | /* Utility to create a=candidate SDP attribute */ |
| 526 | static int print_cand(char buffer[], unsigned maxlen, |
| 527 | const pj_ice_sess_cand *cand) |
| 528 | { |
| 529 | char ipaddr[PJ_INET6_ADDRSTRLEN]; |
| 530 | char *p = buffer; |
| 531 | int printed; |
| 532 | |
| 533 | PRINT("a=candidate:%.*s %u UDP %u %s %u typ ", |
| 534 | (int)cand->foundation.slen, |
| 535 | cand->foundation.ptr, |
| 536 | (unsigned)cand->comp_id, |
| 537 | cand->prio, |
| 538 | pj_sockaddr_print(&cand->addr, ipaddr, |
| 539 | sizeof(ipaddr), 0), |
| 540 | (unsigned)pj_sockaddr_get_port(&cand->addr)); |
| 541 | |
| 542 | PRINT("%s\n", |
| 543 | pj_ice_get_cand_type_name(cand->type)); |
| 544 | |
| 545 | if (p == buffer+maxlen) |
| 546 | return -PJ_ETOOSMALL; |
| 547 | |
| 548 | *p = '\0'; |
| 549 | |
| 550 | return (int)(p-buffer); |
| 551 | } |
| 552 | |
| 553 | /* |
| 554 | * Encode ICE information in SDP. |
| 555 | */ |
| 556 | static int encode_session(char buffer[], unsigned maxlen) |
| 557 | { |
| 558 | char *p = buffer; |
| 559 | unsigned comp; |
| 560 | int printed; |
| 561 | pj_str_t local_ufrag, local_pwd; |
| 562 | pj_status_t status; |
| 563 | |
| 564 | /* Write "dummy" SDP v=, o=, s=, and t= lines */ |
| 565 | PRINT("v=0\no=- 3414953978 3414953978 IN IP4 localhost\ns=ice\nt=0 0\n"); |
| 566 | |
| 567 | /* Get ufrag and pwd from current session */ |
| 568 | pj_ice_strans_get_ufrag_pwd(icedemo.icest, &local_ufrag, &local_pwd, |
| 569 | NULL, NULL); |
| 570 | |
| 571 | /* Write the a=ice-ufrag and a=ice-pwd attributes */ |
| 572 | PRINT("a=ice-ufrag:%.*s\na=ice-pwd:%.*s\n", |
| 573 | (int)local_ufrag.slen, |
| 574 | local_ufrag.ptr, |
| 575 | (int)local_pwd.slen, |
| 576 | local_pwd.ptr); |
| 577 | |
| 578 | /* Write each component */ |
| 579 | for (comp=0; comp<icedemo.opt.comp_cnt; ++comp) { |
| 580 | unsigned j, cand_cnt; |
| 581 | pj_ice_sess_cand cand[PJ_ICE_ST_MAX_CAND]; |
| 582 | char ipaddr[PJ_INET6_ADDRSTRLEN]; |
| 583 | |
| 584 | /* Get default candidate for the component */ |
| 585 | status = pj_ice_strans_get_def_cand(icedemo.icest, comp+1, &cand[0]); |
| 586 | if (status != PJ_SUCCESS) |
| 587 | return -status; |
| 588 | |
| 589 | /* Write the default address */ |
| 590 | if (comp==0) { |
| 591 | /* For component 1, default address is in m= and c= lines */ |
| 592 | PRINT("m=audio %d RTP/AVP 0\n" |
| 593 | "c=IN IP4 %s\n", |
| 594 | (int)pj_sockaddr_get_port(&cand[0].addr), |
| 595 | pj_sockaddr_print(&cand[0].addr, ipaddr, |
| 596 | sizeof(ipaddr), 0)); |
| 597 | } else if (comp==1) { |
| 598 | /* For component 2, default address is in a=rtcp line */ |
| 599 | PRINT("a=rtcp:%d IN IP4 %s\n", |
| 600 | (int)pj_sockaddr_get_port(&cand[0].addr), |
| 601 | pj_sockaddr_print(&cand[0].addr, ipaddr, |
| 602 | sizeof(ipaddr), 0)); |
| 603 | } else { |
| 604 | /* For other components, we'll just invent this.. */ |
| 605 | PRINT("a=Xice-defcand:%d IN IP4 %s\n", |
| 606 | (int)pj_sockaddr_get_port(&cand[0].addr), |
| 607 | pj_sockaddr_print(&cand[0].addr, ipaddr, |
| 608 | sizeof(ipaddr), 0)); |
| 609 | } |
| 610 | |
| 611 | /* Enumerate all candidates for this component */ |
| 612 | cand_cnt = PJ_ARRAY_SIZE(cand); |
| 613 | status = pj_ice_strans_enum_cands(icedemo.icest, comp+1, |
| 614 | &cand_cnt, cand); |
| 615 | if (status != PJ_SUCCESS) |
| 616 | return -status; |
| 617 | |
| 618 | /* And encode the candidates as SDP */ |
| 619 | for (j=0; j<cand_cnt; ++j) { |
| 620 | printed = print_cand(p, maxlen - (unsigned)(p-buffer), &cand[j]); |
| 621 | if (printed < 0) |
| 622 | return -PJ_ETOOSMALL; |
| 623 | p += printed; |
| 624 | } |
| 625 | } |
| 626 | |
| 627 | if (p == buffer+maxlen) |
| 628 | return -PJ_ETOOSMALL; |
| 629 | |
| 630 | *p = '\0'; |
| 631 | return (int)(p - buffer); |
| 632 | } |
| 633 | |
| 634 | |
| 635 | /* |
| 636 | * Show information contained in the ICE stream transport. This is |
| 637 | * invoked from the menu. |
| 638 | */ |
| 639 | static void icedemo_show_ice(void) |
| 640 | { |
| 641 | static char buffer[1000]; |
| 642 | int len; |
| 643 | |
| 644 | if (icedemo.icest == NULL) { |
| 645 | PJ_LOG(1,(THIS_FILE, "Error: No ICE instance, create it first")); |
| 646 | return; |
| 647 | } |
| 648 | |
| 649 | puts("General info"); |
| 650 | puts("---------------"); |
| 651 | printf("Component count : %d\n", icedemo.opt.comp_cnt); |
| 652 | printf("Status : "); |
| 653 | if (pj_ice_strans_sess_is_complete(icedemo.icest)) |
| 654 | puts("negotiation complete"); |
| 655 | else if (pj_ice_strans_sess_is_running(icedemo.icest)) |
| 656 | puts("negotiation is in progress"); |
| 657 | else if (pj_ice_strans_has_sess(icedemo.icest)) |
| 658 | puts("session ready"); |
| 659 | else |
| 660 | puts("session not created"); |
| 661 | |
| 662 | if (!pj_ice_strans_has_sess(icedemo.icest)) { |
| 663 | puts("Create the session first to see more info"); |
| 664 | return; |
| 665 | } |
| 666 | |
| 667 | printf("Negotiated comp_cnt: %d\n", |
| 668 | pj_ice_strans_get_running_comp_cnt(icedemo.icest)); |
| 669 | printf("Role : %s\n", |
| 670 | pj_ice_strans_get_role(icedemo.icest)==PJ_ICE_SESS_ROLE_CONTROLLED ? |
| 671 | "controlled" : "controlling"); |
| 672 | |
| 673 | len = encode_session(buffer, sizeof(buffer)); |
| 674 | if (len < 0) |
| 675 | err_exit("not enough buffer to show ICE status", -len); |
| 676 | |
| 677 | puts(""); |
| 678 | printf("Local SDP (paste this to remote host):\n" |
| 679 | "--------------------------------------\n" |
| 680 | "%s\n", buffer); |
| 681 | |
| 682 | |
| 683 | puts(""); |
| 684 | puts("Remote info:\n" |
| 685 | "----------------------"); |
| 686 | if (icedemo.rem.cand_cnt==0) { |
| 687 | puts("No remote info yet"); |
| 688 | } else { |
| 689 | unsigned i; |
| 690 | |
| 691 | printf("Remote ufrag : %s\n", icedemo.rem.ufrag); |
| 692 | printf("Remote password : %s\n", icedemo.rem.pwd); |
| 693 | printf("Remote cand. cnt. : %d\n", icedemo.rem.cand_cnt); |
| 694 | |
| 695 | for (i=0; i<icedemo.rem.cand_cnt; ++i) { |
| 696 | len = print_cand(buffer, sizeof(buffer), &icedemo.rem.cand[i]); |
| 697 | if (len < 0) |
| 698 | err_exit("not enough buffer to show ICE status", -len); |
| 699 | |
| 700 | printf(" %s", buffer); |
| 701 | } |
| 702 | } |
| 703 | } |
| 704 | |
| 705 | |
| 706 | /* |
| 707 | * Input and parse SDP from the remote (containing remote's ICE information) |
| 708 | * and save it to global variables. |
| 709 | */ |
| 710 | static void icedemo_input_remote(void) |
| 711 | { |
| 712 | char linebuf[80]; |
| 713 | unsigned media_cnt = 0; |
| 714 | unsigned comp0_port = 0; |
| 715 | char comp0_addr[80]; |
| 716 | pj_bool_t done = PJ_FALSE; |
| 717 | |
| 718 | puts("Paste SDP from remote host, end with empty line"); |
| 719 | |
| 720 | reset_rem_info(); |
| 721 | |
| 722 | comp0_addr[0] = '\0'; |
| 723 | |
| 724 | while (!done) { |
| 725 | pj_size_t len; |
| 726 | char *line; |
| 727 | |
| 728 | printf(">"); |
| 729 | if (stdout) fflush(stdout); |
| 730 | |
| 731 | if (fgets(linebuf, sizeof(linebuf), stdin)==NULL) |
| 732 | break; |
| 733 | |
| 734 | len = strlen(linebuf); |
| 735 | while (len && (linebuf[len-1] == '\r' || linebuf[len-1] == '\n')) |
| 736 | linebuf[--len] = '\0'; |
| 737 | |
| 738 | line = linebuf; |
| 739 | while (len && pj_isspace(*line)) |
| 740 | ++line, --len; |
| 741 | |
| 742 | if (len==0) |
| 743 | break; |
| 744 | |
| 745 | /* Ignore subsequent media descriptors */ |
| 746 | if (media_cnt > 1) |
| 747 | continue; |
| 748 | |
| 749 | switch (line[0]) { |
| 750 | case 'm': |
| 751 | { |
| 752 | int cnt; |
| 753 | char media[32], portstr[32]; |
| 754 | |
| 755 | ++media_cnt; |
| 756 | if (media_cnt > 1) { |
| 757 | puts("Media line ignored"); |
| 758 | break; |
| 759 | } |
| 760 | |
| 761 | cnt = sscanf(line+2, "%s %s RTP/", media, portstr); |
| 762 | if (cnt != 2) { |
| 763 | PJ_LOG(1,(THIS_FILE, "Error parsing media line")); |
| 764 | goto on_error; |
| 765 | } |
| 766 | |
| 767 | comp0_port = atoi(portstr); |
| 768 | |
| 769 | } |
| 770 | break; |
| 771 | case 'c': |
| 772 | { |
| 773 | int cnt; |
| 774 | char c[32], net[32], ip[80]; |
| 775 | |
| 776 | cnt = sscanf(line+2, "%s %s %s", c, net, ip); |
| 777 | if (cnt != 3) { |
| 778 | PJ_LOG(1,(THIS_FILE, "Error parsing connection line")); |
| 779 | goto on_error; |
| 780 | } |
| 781 | |
| 782 | strcpy(comp0_addr, ip); |
| 783 | } |
| 784 | break; |
| 785 | case 'a': |
| 786 | { |
| 787 | char *attr = strtok(line+2, ": \t\r\n"); |
| 788 | if (strcmp(attr, "ice-ufrag")==0) { |
| 789 | strcpy(icedemo.rem.ufrag, attr+strlen(attr)+1); |
| 790 | } else if (strcmp(attr, "ice-pwd")==0) { |
| 791 | strcpy(icedemo.rem.pwd, attr+strlen(attr)+1); |
| 792 | } else if (strcmp(attr, "rtcp")==0) { |
| 793 | char *val = attr+strlen(attr)+1; |
| 794 | int af, cnt; |
| 795 | int port; |
| 796 | char net[32], ip[64]; |
| 797 | pj_str_t tmp_addr; |
| 798 | pj_status_t status; |
| 799 | |
| 800 | cnt = sscanf(val, "%d IN %s %s", &port, net, ip); |
| 801 | if (cnt != 3) { |
| 802 | PJ_LOG(1,(THIS_FILE, "Error parsing rtcp attribute")); |
| 803 | goto on_error; |
| 804 | } |
| 805 | |
| 806 | if (strchr(ip, ':')) |
| 807 | af = pj_AF_INET6(); |
| 808 | else |
| 809 | af = pj_AF_INET(); |
| 810 | |
| 811 | pj_sockaddr_init(af, &icedemo.rem.def_addr[1], NULL, 0); |
| 812 | tmp_addr = pj_str(ip); |
| 813 | status = pj_sockaddr_set_str_addr(af, &icedemo.rem.def_addr[1], |
| 814 | &tmp_addr); |
| 815 | if (status != PJ_SUCCESS) { |
| 816 | PJ_LOG(1,(THIS_FILE, "Invalid IP address")); |
| 817 | goto on_error; |
| 818 | } |
| 819 | pj_sockaddr_set_port(&icedemo.rem.def_addr[1], (pj_uint16_t)port); |
| 820 | |
| 821 | } else if (strcmp(attr, "candidate")==0) { |
| 822 | char *sdpcand = attr+strlen(attr)+1; |
| 823 | int af, cnt; |
| 824 | char foundation[32], transport[12], ipaddr[80], type[32]; |
| 825 | pj_str_t tmpaddr; |
| 826 | int comp_id, prio, port; |
| 827 | pj_ice_sess_cand *cand; |
| 828 | pj_status_t status; |
| 829 | |
| 830 | cnt = sscanf(sdpcand, "%s %d %s %d %s %d typ %s", |
| 831 | foundation, |
| 832 | &comp_id, |
| 833 | transport, |
| 834 | &prio, |
| 835 | ipaddr, |
| 836 | &port, |
| 837 | type); |
| 838 | if (cnt != 7) { |
| 839 | PJ_LOG(1, (THIS_FILE, "error: Invalid ICE candidate line")); |
| 840 | goto on_error; |
| 841 | } |
| 842 | |
| 843 | cand = &icedemo.rem.cand[icedemo.rem.cand_cnt]; |
| 844 | pj_bzero(cand, sizeof(*cand)); |
| 845 | |
| 846 | if (strcmp(type, "host")==0) |
| 847 | cand->type = PJ_ICE_CAND_TYPE_HOST; |
| 848 | else if (strcmp(type, "srflx")==0) |
| 849 | cand->type = PJ_ICE_CAND_TYPE_SRFLX; |
| 850 | else if (strcmp(type, "relay")==0) |
| 851 | cand->type = PJ_ICE_CAND_TYPE_RELAYED; |
| 852 | else { |
| 853 | PJ_LOG(1, (THIS_FILE, "Error: invalid candidate type '%s'", |
| 854 | type)); |
| 855 | goto on_error; |
| 856 | } |
| 857 | |
| 858 | cand->comp_id = (pj_uint8_t)comp_id; |
| 859 | pj_strdup2(icedemo.pool, &cand->foundation, foundation); |
| 860 | cand->prio = prio; |
| 861 | |
| 862 | if (strchr(ipaddr, ':')) |
| 863 | af = pj_AF_INET6(); |
| 864 | else |
| 865 | af = pj_AF_INET(); |
| 866 | |
| 867 | tmpaddr = pj_str(ipaddr); |
| 868 | pj_sockaddr_init(af, &cand->addr, NULL, 0); |
| 869 | status = pj_sockaddr_set_str_addr(af, &cand->addr, &tmpaddr); |
| 870 | if (status != PJ_SUCCESS) { |
| 871 | PJ_LOG(1,(THIS_FILE, "Error: invalid IP address '%s'", |
| 872 | ipaddr)); |
| 873 | goto on_error; |
| 874 | } |
| 875 | |
| 876 | pj_sockaddr_set_port(&cand->addr, (pj_uint16_t)port); |
| 877 | |
| 878 | ++icedemo.rem.cand_cnt; |
| 879 | |
| 880 | if (cand->comp_id > icedemo.rem.comp_cnt) |
| 881 | icedemo.rem.comp_cnt = cand->comp_id; |
| 882 | } |
| 883 | } |
| 884 | break; |
| 885 | } |
| 886 | } |
| 887 | |
| 888 | if (icedemo.rem.cand_cnt==0 || |
| 889 | icedemo.rem.ufrag[0]==0 || |
| 890 | icedemo.rem.pwd[0]==0 || |
| 891 | icedemo.rem.comp_cnt == 0) |
| 892 | { |
| 893 | PJ_LOG(1, (THIS_FILE, "Error: not enough info")); |
| 894 | goto on_error; |
| 895 | } |
| 896 | |
| 897 | if (comp0_port==0 || comp0_addr[0]=='\0') { |
| 898 | PJ_LOG(1, (THIS_FILE, "Error: default address for component 0 not found")); |
| 899 | goto on_error; |
| 900 | } else { |
| 901 | int af; |
| 902 | pj_str_t tmp_addr; |
| 903 | pj_status_t status; |
| 904 | |
| 905 | if (strchr(comp0_addr, ':')) |
| 906 | af = pj_AF_INET6(); |
| 907 | else |
| 908 | af = pj_AF_INET(); |
| 909 | |
| 910 | pj_sockaddr_init(af, &icedemo.rem.def_addr[0], NULL, 0); |
| 911 | tmp_addr = pj_str(comp0_addr); |
| 912 | status = pj_sockaddr_set_str_addr(af, &icedemo.rem.def_addr[0], |
| 913 | &tmp_addr); |
| 914 | if (status != PJ_SUCCESS) { |
| 915 | PJ_LOG(1,(THIS_FILE, "Invalid IP address in c= line")); |
| 916 | goto on_error; |
| 917 | } |
| 918 | pj_sockaddr_set_port(&icedemo.rem.def_addr[0], (pj_uint16_t)comp0_port); |
| 919 | } |
| 920 | |
| 921 | PJ_LOG(3, (THIS_FILE, "Done, %d remote candidate(s) added", |
| 922 | icedemo.rem.cand_cnt)); |
| 923 | return; |
| 924 | |
| 925 | on_error: |
| 926 | reset_rem_info(); |
| 927 | } |
| 928 | |
| 929 | |
| 930 | /* |
| 931 | * Start ICE negotiation! This function is invoked from the menu. |
| 932 | */ |
| 933 | static void icedemo_start_nego(void) |
| 934 | { |
| 935 | pj_str_t rufrag, rpwd; |
| 936 | pj_status_t status; |
| 937 | |
| 938 | if (icedemo.icest == NULL) { |
| 939 | PJ_LOG(1,(THIS_FILE, "Error: No ICE instance, create it first")); |
| 940 | return; |
| 941 | } |
| 942 | |
| 943 | if (!pj_ice_strans_has_sess(icedemo.icest)) { |
| 944 | PJ_LOG(1,(THIS_FILE, "Error: No ICE session, initialize first")); |
| 945 | return; |
| 946 | } |
| 947 | |
| 948 | if (icedemo.rem.cand_cnt == 0) { |
| 949 | PJ_LOG(1,(THIS_FILE, "Error: No remote info, input remote info first")); |
| 950 | return; |
| 951 | } |
| 952 | |
| 953 | PJ_LOG(3,(THIS_FILE, "Starting ICE negotiation..")); |
| 954 | |
| 955 | status = pj_ice_strans_start_ice(icedemo.icest, |
| 956 | pj_cstr(&rufrag, icedemo.rem.ufrag), |
| 957 | pj_cstr(&rpwd, icedemo.rem.pwd), |
| 958 | icedemo.rem.cand_cnt, |
| 959 | icedemo.rem.cand); |
| 960 | if (status != PJ_SUCCESS) |
| 961 | icedemo_perror("Error starting ICE", status); |
| 962 | else |
| 963 | PJ_LOG(3,(THIS_FILE, "ICE negotiation started")); |
| 964 | } |
| 965 | |
| 966 | |
| 967 | /* |
| 968 | * Send application data to remote agent. |
| 969 | */ |
| 970 | static void icedemo_send_data(unsigned comp_id, const char *data) |
| 971 | { |
| 972 | pj_status_t status; |
| 973 | |
| 974 | if (icedemo.icest == NULL) { |
| 975 | PJ_LOG(1,(THIS_FILE, "Error: No ICE instance, create it first")); |
| 976 | return; |
| 977 | } |
| 978 | |
| 979 | if (!pj_ice_strans_has_sess(icedemo.icest)) { |
| 980 | PJ_LOG(1,(THIS_FILE, "Error: No ICE session, initialize first")); |
| 981 | return; |
| 982 | } |
| 983 | |
| 984 | /* |
| 985 | if (!pj_ice_strans_sess_is_complete(icedemo.icest)) { |
| 986 | PJ_LOG(1,(THIS_FILE, "Error: ICE negotiation has not been started or is in progress")); |
| 987 | return; |
| 988 | } |
| 989 | */ |
| 990 | |
| 991 | if (comp_id<1||comp_id>pj_ice_strans_get_running_comp_cnt(icedemo.icest)) { |
| 992 | PJ_LOG(1,(THIS_FILE, "Error: invalid component ID")); |
| 993 | return; |
| 994 | } |
| 995 | |
| 996 | status = pj_ice_strans_sendto(icedemo.icest, comp_id, data, strlen(data), |
| 997 | &icedemo.rem.def_addr[comp_id-1], |
| 998 | pj_sockaddr_get_len(&icedemo.rem.def_addr[comp_id-1])); |
| 999 | if (status != PJ_SUCCESS) |
| 1000 | icedemo_perror("Error sending data", status); |
| 1001 | else |
| 1002 | PJ_LOG(3,(THIS_FILE, "Data sent")); |
| 1003 | } |
| 1004 | |
| 1005 | |
| 1006 | /* |
| 1007 | * Display help for the menu. |
| 1008 | */ |
| 1009 | static void icedemo_help_menu(void) |
| 1010 | { |
| 1011 | puts(""); |
| 1012 | puts("-= Help on using ICE and this icedemo program =-"); |
| 1013 | puts(""); |
| 1014 | puts("This application demonstrates how to use ICE in pjnath without having\n" |
| 1015 | "to use the SIP protocol. To use this application, you will need to run\n" |
| 1016 | "two instances of this application, to simulate two ICE agents.\n"); |
| 1017 | |
| 1018 | puts("Basic ICE flow:\n" |
| 1019 | " create instance [menu \"c\"]\n" |
| 1020 | " repeat these steps as wanted:\n" |
| 1021 | " - init session as offerer or answerer [menu \"i\"]\n" |
| 1022 | " - display our SDP [menu \"s\"]\n" |
| 1023 | " - \"send\" our SDP from the \"show\" output above to remote, by\n" |
| 1024 | " copy-pasting the SDP to the other icedemo application\n" |
| 1025 | " - parse remote SDP, by pasting SDP generated by the other icedemo\n" |
| 1026 | " instance [menu \"r\"]\n" |
| 1027 | " - begin ICE negotiation in our end [menu \"b\"], and \n" |
| 1028 | " - immediately begin ICE negotiation in the other icedemo instance\n" |
| 1029 | " - ICE negotiation will run, and result will be printed to screen\n" |
| 1030 | " - send application data to remote [menu \"x\"]\n" |
| 1031 | " - end/stop ICE session [menu \"e\"]\n" |
| 1032 | " destroy instance [menu \"d\"]\n" |
| 1033 | ""); |
| 1034 | |
| 1035 | puts(""); |
| 1036 | puts("This concludes the help screen."); |
| 1037 | puts(""); |
| 1038 | } |
| 1039 | |
| 1040 | |
| 1041 | /* |
| 1042 | * Display console menu |
| 1043 | */ |
| 1044 | static void icedemo_print_menu(void) |
| 1045 | { |
| 1046 | puts(""); |
| 1047 | puts("+----------------------------------------------------------------------+"); |
| 1048 | puts("| M E N U |"); |
| 1049 | puts("+---+------------------------------------------------------------------+"); |
| 1050 | puts("| c | create Create the instance |"); |
| 1051 | puts("| d | destroy Destroy the instance |"); |
| 1052 | puts("| i | init o|a Initialize ICE session as offerer or answerer |"); |
| 1053 | puts("| e | stop End/stop ICE session |"); |
| 1054 | puts("| s | show Display local ICE info |"); |
| 1055 | puts("| r | remote Input remote ICE info |"); |
| 1056 | puts("| b | start Begin ICE negotiation |"); |
| 1057 | puts("| x | send <compid> .. Send data to remote |"); |
| 1058 | puts("+---+------------------------------------------------------------------+"); |
| 1059 | puts("| h | help * Help! * |"); |
| 1060 | puts("| q | quit Quit |"); |
| 1061 | puts("+----------------------------------------------------------------------+"); |
| 1062 | } |
| 1063 | |
| 1064 | |
| 1065 | /* |
| 1066 | * Main console loop. |
| 1067 | */ |
| 1068 | static void icedemo_console(void) |
| 1069 | { |
| 1070 | pj_bool_t app_quit = PJ_FALSE; |
| 1071 | |
| 1072 | while (!app_quit) { |
| 1073 | char input[80], *cmd; |
| 1074 | const char *SEP = " \t\r\n"; |
| 1075 | pj_size_t len; |
| 1076 | |
| 1077 | icedemo_print_menu(); |
| 1078 | |
| 1079 | printf("Input: "); |
| 1080 | if (stdout) fflush(stdout); |
| 1081 | |
| 1082 | pj_bzero(input, sizeof(input)); |
| 1083 | if (fgets(input, sizeof(input), stdin) == NULL) |
| 1084 | break; |
| 1085 | |
| 1086 | len = strlen(input); |
| 1087 | while (len && (input[len-1]=='\r' || input[len-1]=='\n')) |
| 1088 | input[--len] = '\0'; |
| 1089 | |
| 1090 | cmd = strtok(input, SEP); |
| 1091 | if (!cmd) |
| 1092 | continue; |
| 1093 | |
| 1094 | if (strcmp(cmd, "create")==0 || strcmp(cmd, "c")==0) { |
| 1095 | |
| 1096 | icedemo_create_instance(); |
| 1097 | |
| 1098 | } else if (strcmp(cmd, "destroy")==0 || strcmp(cmd, "d")==0) { |
| 1099 | |
| 1100 | icedemo_destroy_instance(); |
| 1101 | |
| 1102 | } else if (strcmp(cmd, "init")==0 || strcmp(cmd, "i")==0) { |
| 1103 | |
| 1104 | char *role = strtok(NULL, SEP); |
| 1105 | if (role) |
| 1106 | icedemo_init_session(*role); |
| 1107 | else |
| 1108 | puts("error: Role required"); |
| 1109 | |
| 1110 | } else if (strcmp(cmd, "stop")==0 || strcmp(cmd, "e")==0) { |
| 1111 | |
| 1112 | icedemo_stop_session(); |
| 1113 | |
| 1114 | } else if (strcmp(cmd, "show")==0 || strcmp(cmd, "s")==0) { |
| 1115 | |
| 1116 | icedemo_show_ice(); |
| 1117 | |
| 1118 | } else if (strcmp(cmd, "remote")==0 || strcmp(cmd, "r")==0) { |
| 1119 | |
| 1120 | icedemo_input_remote(); |
| 1121 | |
| 1122 | } else if (strcmp(cmd, "start")==0 || strcmp(cmd, "b")==0) { |
| 1123 | |
| 1124 | icedemo_start_nego(); |
| 1125 | |
| 1126 | } else if (strcmp(cmd, "send")==0 || strcmp(cmd, "x")==0) { |
| 1127 | |
| 1128 | char *comp = strtok(NULL, SEP); |
| 1129 | |
| 1130 | if (!comp) { |
| 1131 | PJ_LOG(1,(THIS_FILE, "Error: component ID required")); |
| 1132 | } else { |
| 1133 | char *data = comp + strlen(comp) + 1; |
| 1134 | if (!data) |
| 1135 | data = ""; |
| 1136 | icedemo_send_data(atoi(comp), data); |
| 1137 | } |
| 1138 | |
| 1139 | } else if (strcmp(cmd, "help")==0 || strcmp(cmd, "h")==0) { |
| 1140 | |
| 1141 | icedemo_help_menu(); |
| 1142 | |
| 1143 | } else if (strcmp(cmd, "quit")==0 || strcmp(cmd, "q")==0) { |
| 1144 | |
| 1145 | app_quit = PJ_TRUE; |
| 1146 | |
| 1147 | } else { |
| 1148 | |
| 1149 | printf("Invalid command '%s'\n", cmd); |
| 1150 | |
| 1151 | } |
| 1152 | } |
| 1153 | } |
| 1154 | |
| 1155 | |
| 1156 | /* |
| 1157 | * Display program usage. |
| 1158 | */ |
| 1159 | static void icedemo_usage() |
| 1160 | { |
| 1161 | puts("Usage: icedemo [optons]"); |
| 1162 | printf("icedemo v%s by pjsip.org\n", pj_get_version()); |
| 1163 | puts(""); |
| 1164 | puts("General options:"); |
| 1165 | puts(" --comp-cnt, -c N Component count (default=1)"); |
| 1166 | puts(" --nameserver, -n IP Configure nameserver to activate DNS SRV"); |
| 1167 | puts(" resolution"); |
| 1168 | puts(" --max-host, -H N Set max number of host candidates to N"); |
| 1169 | puts(" --regular, -R Use regular nomination (default aggressive)"); |
| 1170 | puts(" --log-file, -L FILE Save output to log FILE"); |
| 1171 | puts(" --help, -h Display this screen."); |
| 1172 | puts(""); |
| 1173 | puts("STUN related options:"); |
| 1174 | puts(" --stun-srv, -s HOSTDOM Enable srflx candidate by resolving to STUN server."); |
| 1175 | puts(" HOSTDOM may be a \"host_or_ip[:port]\" or a domain"); |
| 1176 | puts(" name if DNS SRV resolution is used."); |
| 1177 | puts(""); |
| 1178 | puts("TURN related options:"); |
| 1179 | puts(" --turn-srv, -t HOSTDOM Enable relayed candidate by using this TURN server."); |
| 1180 | puts(" HOSTDOM may be a \"host_or_ip[:port]\" or a domain"); |
| 1181 | puts(" name if DNS SRV resolution is used."); |
| 1182 | puts(" --turn-tcp, -T Use TCP to connect to TURN server"); |
| 1183 | puts(" --turn-username, -u UID Set TURN username of the credential to UID"); |
| 1184 | puts(" --turn-password, -p PWD Set password of the credential to WPWD"); |
| 1185 | puts(" --turn-fingerprint, -F Use fingerprint for outgoing TURN requests"); |
| 1186 | puts(""); |
| 1187 | } |
| 1188 | |
| 1189 | |
| 1190 | /* |
| 1191 | * And here's the main() |
| 1192 | */ |
| 1193 | int main(int argc, char *argv[]) |
| 1194 | { |
| 1195 | struct pj_getopt_option long_options[] = { |
| 1196 | { "comp-cnt", 1, 0, 'c'}, |
| 1197 | { "nameserver", 1, 0, 'n'}, |
| 1198 | { "max-host", 1, 0, 'H'}, |
| 1199 | { "help", 0, 0, 'h'}, |
| 1200 | { "stun-srv", 1, 0, 's'}, |
| 1201 | { "turn-srv", 1, 0, 't'}, |
| 1202 | { "turn-tcp", 0, 0, 'T'}, |
| 1203 | { "turn-username", 1, 0, 'u'}, |
| 1204 | { "turn-password", 1, 0, 'p'}, |
| 1205 | { "turn-fingerprint", 0, 0, 'F'}, |
| 1206 | { "regular", 0, 0, 'R'}, |
| 1207 | { "log-file", 1, 0, 'L'}, |
| 1208 | }; |
| 1209 | int c, opt_id; |
| 1210 | pj_status_t status; |
| 1211 | |
| 1212 | icedemo.opt.comp_cnt = 1; |
| 1213 | icedemo.opt.max_host = -1; |
| 1214 | |
| 1215 | while((c=pj_getopt_long(argc,argv, "c:n:s:t:u:p:H:L:hTFR", long_options, &opt_id))!=-1) { |
| 1216 | switch (c) { |
| 1217 | case 'c': |
| 1218 | icedemo.opt.comp_cnt = atoi(pj_optarg); |
| 1219 | if (icedemo.opt.comp_cnt < 1 || icedemo.opt.comp_cnt >= PJ_ICE_MAX_COMP) { |
| 1220 | puts("Invalid component count value"); |
| 1221 | return 1; |
| 1222 | } |
| 1223 | break; |
| 1224 | case 'n': |
| 1225 | icedemo.opt.ns = pj_str(pj_optarg); |
| 1226 | break; |
| 1227 | case 'H': |
| 1228 | icedemo.opt.max_host = atoi(pj_optarg); |
| 1229 | break; |
| 1230 | case 'h': |
| 1231 | icedemo_usage(); |
| 1232 | return 0; |
| 1233 | case 's': |
| 1234 | icedemo.opt.stun_srv = pj_str(pj_optarg); |
| 1235 | break; |
| 1236 | case 't': |
| 1237 | icedemo.opt.turn_srv = pj_str(pj_optarg); |
| 1238 | break; |
| 1239 | case 'T': |
| 1240 | icedemo.opt.turn_tcp = PJ_TRUE; |
| 1241 | break; |
| 1242 | case 'u': |
| 1243 | icedemo.opt.turn_username = pj_str(pj_optarg); |
| 1244 | break; |
| 1245 | case 'p': |
| 1246 | icedemo.opt.turn_password = pj_str(pj_optarg); |
| 1247 | break; |
| 1248 | case 'F': |
| 1249 | icedemo.opt.turn_fingerprint = PJ_TRUE; |
| 1250 | break; |
| 1251 | case 'R': |
| 1252 | icedemo.opt.regular = PJ_TRUE; |
| 1253 | break; |
| 1254 | case 'L': |
| 1255 | icedemo.opt.log_file = pj_optarg; |
| 1256 | break; |
| 1257 | default: |
| 1258 | printf("Argument \"%s\" is not valid. Use -h to see help", |
| 1259 | argv[pj_optind]); |
| 1260 | return 1; |
| 1261 | } |
| 1262 | } |
| 1263 | |
| 1264 | status = icedemo_init(); |
| 1265 | if (status != PJ_SUCCESS) |
| 1266 | return 1; |
| 1267 | |
| 1268 | icedemo_console(); |
| 1269 | |
| 1270 | err_exit("Quitting..", PJ_SUCCESS); |
| 1271 | return 0; |
| 1272 | } |