Benny Prijono | 84126ab | 2006-02-09 09:30:09 +0000 | [diff] [blame] | 1 | /* $Id$ */ |
| 2 | /* |
| 3 | * Copyright (C) 2003-2006 Benny Prijono <benny@prijono.org> |
| 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 "pjsua.h" |
| 20 | #include <pj/log.h> |
| 21 | |
| 22 | |
| 23 | /* |
| 24 | * pjsua_inv.c |
| 25 | * |
| 26 | * Invite session specific functionalities. |
| 27 | */ |
| 28 | |
| 29 | #define THIS_FILE "pjsua_inv.c" |
| 30 | |
| 31 | |
| 32 | /** |
| 33 | * Make outgoing call. |
| 34 | */ |
| 35 | pj_status_t pjsua_invite(const char *cstr_dest_uri, |
| 36 | pjsip_inv_session **p_inv) |
| 37 | { |
| 38 | pj_str_t dest_uri; |
| 39 | pjsip_dialog *dlg; |
| 40 | pjmedia_sdp_session *offer; |
| 41 | pjsip_inv_session *inv; |
| 42 | struct pjsua_inv_data *inv_data; |
| 43 | pjsip_tx_data *tdata; |
| 44 | pj_status_t status; |
| 45 | |
| 46 | /* Convert cstr_dest_uri to dest_uri */ |
| 47 | |
| 48 | dest_uri = pj_str((char*)cstr_dest_uri); |
| 49 | |
| 50 | /* Create outgoing dialog: */ |
| 51 | |
| 52 | status = pjsip_dlg_create_uac( pjsip_ua_instance(), &pjsua.local_uri, |
| 53 | &pjsua.contact_uri, &dest_uri, &dest_uri, |
| 54 | &dlg); |
| 55 | if (status != PJ_SUCCESS) { |
Benny Prijono | bcaed6c | 2006-02-19 15:37:19 +0000 | [diff] [blame^] | 56 | pjsua_perror(THIS_FILE, "Dialog creation failed", status); |
Benny Prijono | 84126ab | 2006-02-09 09:30:09 +0000 | [diff] [blame] | 57 | return status; |
| 58 | } |
| 59 | |
| 60 | /* Get media capability from media endpoint: */ |
| 61 | |
| 62 | status = pjmedia_endpt_create_sdp( pjsua.med_endpt, dlg->pool, |
| 63 | 1, &pjsua.med_skinfo, &offer); |
| 64 | if (status != PJ_SUCCESS) { |
Benny Prijono | bcaed6c | 2006-02-19 15:37:19 +0000 | [diff] [blame^] | 65 | pjsua_perror(THIS_FILE, "pjmedia unable to create SDP", status); |
Benny Prijono | 84126ab | 2006-02-09 09:30:09 +0000 | [diff] [blame] | 66 | goto on_error; |
| 67 | } |
| 68 | |
| 69 | /* Create the INVITE session: */ |
| 70 | |
| 71 | status = pjsip_inv_create_uac( dlg, offer, 0, &inv); |
| 72 | if (status != PJ_SUCCESS) { |
Benny Prijono | bcaed6c | 2006-02-19 15:37:19 +0000 | [diff] [blame^] | 73 | pjsua_perror(THIS_FILE, "Invite session creation failed", status); |
Benny Prijono | 84126ab | 2006-02-09 09:30:09 +0000 | [diff] [blame] | 74 | goto on_error; |
| 75 | } |
| 76 | |
| 77 | |
| 78 | /* Create and associate our data in the session. */ |
| 79 | |
| 80 | inv_data = pj_pool_zalloc( dlg->pool, sizeof(struct pjsua_inv_data)); |
Benny Prijono | 632ce71 | 2006-02-09 14:01:40 +0000 | [diff] [blame] | 81 | inv_data->inv = inv; |
Benny Prijono | 84126ab | 2006-02-09 09:30:09 +0000 | [diff] [blame] | 82 | dlg->mod_data[pjsua.mod.id] = inv_data; |
Benny Prijono | 834aee3 | 2006-02-19 01:38:06 +0000 | [diff] [blame] | 83 | inv->mod_data[pjsua.mod.id] = inv_data; |
Benny Prijono | 84126ab | 2006-02-09 09:30:09 +0000 | [diff] [blame] | 84 | |
| 85 | |
| 86 | /* Set dialog Route-Set: */ |
| 87 | |
| 88 | if (!pj_list_empty(&pjsua.route_set)) |
| 89 | pjsip_dlg_set_route_set(dlg, &pjsua.route_set); |
| 90 | |
| 91 | |
| 92 | /* Set credentials: */ |
| 93 | |
| 94 | pjsip_auth_clt_set_credentials( &dlg->auth_sess, pjsua.cred_count, |
| 95 | pjsua.cred_info); |
| 96 | |
| 97 | |
| 98 | /* Create initial INVITE: */ |
| 99 | |
| 100 | status = pjsip_inv_invite(inv, &tdata); |
| 101 | if (status != PJ_SUCCESS) { |
Benny Prijono | bcaed6c | 2006-02-19 15:37:19 +0000 | [diff] [blame^] | 102 | pjsua_perror(THIS_FILE, "Unable to create initial INVITE request", |
| 103 | status); |
Benny Prijono | 84126ab | 2006-02-09 09:30:09 +0000 | [diff] [blame] | 104 | goto on_error; |
| 105 | } |
| 106 | |
| 107 | |
| 108 | /* Send initial INVITE: */ |
| 109 | |
| 110 | status = pjsip_inv_send_msg(inv, tdata, NULL); |
| 111 | if (status != PJ_SUCCESS) { |
Benny Prijono | bcaed6c | 2006-02-19 15:37:19 +0000 | [diff] [blame^] | 112 | pjsua_perror(THIS_FILE, "Unable to send initial INVITE request", |
| 113 | status); |
Benny Prijono | 84126ab | 2006-02-09 09:30:09 +0000 | [diff] [blame] | 114 | goto on_error; |
| 115 | } |
| 116 | |
Benny Prijono | 632ce71 | 2006-02-09 14:01:40 +0000 | [diff] [blame] | 117 | /* Add invite session to the list. */ |
| 118 | |
| 119 | pj_list_push_back(&pjsua.inv_list, inv_data); |
| 120 | |
Benny Prijono | 84126ab | 2006-02-09 09:30:09 +0000 | [diff] [blame] | 121 | |
| 122 | /* Done. */ |
| 123 | |
| 124 | *p_inv = inv; |
| 125 | |
| 126 | return PJ_SUCCESS; |
| 127 | |
| 128 | |
| 129 | on_error: |
| 130 | |
| 131 | PJ_TODO(DESTROY_DIALOG_ON_FAIL); |
| 132 | return status; |
| 133 | } |
| 134 | |
| 135 | |
| 136 | /** |
| 137 | * Handle incoming INVITE request. |
| 138 | */ |
| 139 | pj_bool_t pjsua_inv_on_incoming(pjsip_rx_data *rdata) |
| 140 | { |
| 141 | pjsip_dialog *dlg = pjsip_rdata_get_dlg(rdata); |
| 142 | pjsip_transaction *tsx = pjsip_rdata_get_tsx(rdata); |
| 143 | pjsip_msg *msg = rdata->msg_info.msg; |
| 144 | |
| 145 | /* |
| 146 | * Handle incoming INVITE outside dialog. |
| 147 | */ |
| 148 | if (dlg == NULL && tsx == NULL && |
| 149 | msg->line.req.method.id == PJSIP_INVITE_METHOD) |
| 150 | { |
| 151 | pj_status_t status; |
| 152 | pjsip_tx_data *response = NULL; |
| 153 | unsigned options = 0; |
| 154 | |
| 155 | /* Verify that we can handle the request. */ |
| 156 | status = pjsip_inv_verify_request(rdata, &options, NULL, NULL, |
| 157 | pjsua.endpt, &response); |
| 158 | if (status != PJ_SUCCESS) { |
| 159 | |
| 160 | /* |
| 161 | * No we can't handle the incoming INVITE request. |
| 162 | */ |
| 163 | |
| 164 | if (response) { |
| 165 | pjsip_response_addr res_addr; |
| 166 | |
| 167 | pjsip_get_response_addr(response->pool, rdata, &res_addr); |
| 168 | pjsip_endpt_send_response(pjsua.endpt, &res_addr, response, |
| 169 | NULL, NULL); |
| 170 | |
| 171 | } else { |
| 172 | |
| 173 | /* Respond with 500 (Internal Server Error) */ |
| 174 | pjsip_endpt_respond_stateless(pjsua.endpt, rdata, 500, NULL, |
| 175 | NULL, NULL); |
| 176 | } |
| 177 | |
| 178 | } else { |
| 179 | /* |
| 180 | * Yes we can handle the incoming INVITE request. |
| 181 | */ |
| 182 | pjsip_inv_session *inv; |
| 183 | struct pjsua_inv_data *inv_data; |
| 184 | pjmedia_sdp_session *answer; |
| 185 | |
| 186 | |
| 187 | /* Get media capability from media endpoint: */ |
| 188 | |
| 189 | status = pjmedia_endpt_create_sdp( pjsua.med_endpt, rdata->tp_info.pool, |
| 190 | 1, &pjsua.med_skinfo, &answer ); |
| 191 | if (status != PJ_SUCCESS) { |
| 192 | |
| 193 | pjsip_endpt_respond_stateless(pjsua.endpt, rdata, 500, NULL, |
| 194 | NULL, NULL); |
| 195 | return PJ_TRUE; |
| 196 | } |
| 197 | |
| 198 | /* Create dialog: */ |
| 199 | |
| 200 | status = pjsip_dlg_create_uas( pjsip_ua_instance(), rdata, |
| 201 | &pjsua.contact_uri, &dlg); |
| 202 | if (status != PJ_SUCCESS) |
| 203 | return PJ_TRUE; |
| 204 | |
| 205 | |
| 206 | /* Create invite session: */ |
| 207 | |
| 208 | status = pjsip_inv_create_uas( dlg, rdata, answer, 0, &inv); |
| 209 | if (status != PJ_SUCCESS) { |
| 210 | |
| 211 | status = pjsip_dlg_create_response( dlg, rdata, 500, NULL, |
| 212 | &response); |
| 213 | if (status == PJ_SUCCESS) |
| 214 | status = pjsip_dlg_send_response(dlg, |
| 215 | pjsip_rdata_get_tsx(rdata), |
| 216 | response); |
| 217 | return PJ_TRUE; |
| 218 | |
| 219 | } |
| 220 | |
| 221 | |
| 222 | /* Create and attach pjsua data to the dialog: */ |
| 223 | |
| 224 | inv_data = pj_pool_zalloc(dlg->pool, sizeof(struct pjsua_inv_data)); |
Benny Prijono | 632ce71 | 2006-02-09 14:01:40 +0000 | [diff] [blame] | 225 | inv_data->inv = inv; |
Benny Prijono | 84126ab | 2006-02-09 09:30:09 +0000 | [diff] [blame] | 226 | dlg->mod_data[pjsua.mod.id] = inv_data; |
Benny Prijono | 834aee3 | 2006-02-19 01:38:06 +0000 | [diff] [blame] | 227 | inv->mod_data[pjsua.mod.id] = inv_data; |
Benny Prijono | 84126ab | 2006-02-09 09:30:09 +0000 | [diff] [blame] | 228 | |
Benny Prijono | 632ce71 | 2006-02-09 14:01:40 +0000 | [diff] [blame] | 229 | pj_list_push_back(&pjsua.inv_list, inv_data); |
| 230 | |
Benny Prijono | 84126ab | 2006-02-09 09:30:09 +0000 | [diff] [blame] | 231 | |
| 232 | /* Answer with 100 (using the dialog, not invite): */ |
| 233 | |
| 234 | status = pjsip_dlg_create_response(dlg, rdata, 100, NULL, &response); |
| 235 | if (status == PJ_SUCCESS) |
| 236 | status = pjsip_dlg_send_response(dlg, pjsip_rdata_get_tsx(rdata), response); |
| 237 | } |
| 238 | |
| 239 | /* This INVITE request has been handled. */ |
| 240 | return PJ_TRUE; |
| 241 | } |
| 242 | |
| 243 | return PJ_FALSE; |
| 244 | } |
| 245 | |
| 246 | |
| 247 | /* |
| 248 | * This callback receives notification from invite session when the |
| 249 | * session state has changed. |
| 250 | */ |
| 251 | void pjsua_inv_on_state_changed(pjsip_inv_session *inv, pjsip_event *e) |
| 252 | { |
| 253 | |
| 254 | /* Destroy media session when invite session is disconnected. */ |
| 255 | if (inv->state == PJSIP_INV_STATE_DISCONNECTED) { |
| 256 | struct pjsua_inv_data *inv_data; |
| 257 | |
| 258 | inv_data = inv->dlg->mod_data[pjsua.mod.id]; |
Benny Prijono | 632ce71 | 2006-02-09 14:01:40 +0000 | [diff] [blame] | 259 | |
| 260 | pj_assert(inv_data != NULL); |
| 261 | |
Benny Prijono | 84126ab | 2006-02-09 09:30:09 +0000 | [diff] [blame] | 262 | if (inv_data && inv_data->session) { |
| 263 | pjmedia_session_destroy(inv_data->session); |
| 264 | inv_data->session = NULL; |
| 265 | |
| 266 | PJ_LOG(3,(THIS_FILE,"Media session is destroyed")); |
| 267 | } |
| 268 | |
Benny Prijono | 632ce71 | 2006-02-09 14:01:40 +0000 | [diff] [blame] | 269 | if (inv_data) { |
| 270 | |
| 271 | pj_list_erase(inv_data); |
| 272 | |
| 273 | } |
Benny Prijono | 84126ab | 2006-02-09 09:30:09 +0000 | [diff] [blame] | 274 | } |
| 275 | |
| 276 | pjsua_ui_inv_on_state_changed(inv, e); |
| 277 | } |
| 278 | |
| 279 | |
| 280 | /* |
| 281 | * This callback is called by invite session framework when UAC session |
| 282 | * has forked. |
| 283 | */ |
| 284 | void pjsua_inv_on_new_session(pjsip_inv_session *inv, pjsip_event *e) |
| 285 | { |
| 286 | PJ_UNUSED_ARG(inv); |
| 287 | PJ_UNUSED_ARG(e); |
| 288 | |
| 289 | PJ_TODO(HANDLE_FORKED_DIALOG); |
| 290 | } |
| 291 | |
| 292 | |
| 293 | /* |
| 294 | * Callback to be called when SDP offer/answer negotiation has just completed |
| 295 | * in the session. This function will start/update media if negotiation |
| 296 | * has succeeded. |
| 297 | */ |
| 298 | void pjsua_inv_on_media_update(pjsip_inv_session *inv, pj_status_t status) |
| 299 | { |
| 300 | struct pjsua_inv_data *inv_data; |
| 301 | const pjmedia_sdp_session *local_sdp; |
| 302 | const pjmedia_sdp_session *remote_sdp; |
| 303 | |
| 304 | if (status != PJ_SUCCESS) { |
| 305 | |
Benny Prijono | bcaed6c | 2006-02-19 15:37:19 +0000 | [diff] [blame^] | 306 | pjsua_perror(THIS_FILE, "SDP negotiation has failed", status); |
Benny Prijono | 84126ab | 2006-02-09 09:30:09 +0000 | [diff] [blame] | 307 | return; |
| 308 | |
| 309 | } |
| 310 | |
| 311 | /* Destroy existing media session, if any. */ |
| 312 | |
| 313 | inv_data = inv->dlg->mod_data[pjsua.mod.id]; |
| 314 | if (inv_data && inv_data->session) { |
| 315 | pjmedia_session_destroy(inv_data->session); |
| 316 | inv_data->session = NULL; |
| 317 | } |
| 318 | |
| 319 | /* Get local and remote SDP */ |
| 320 | |
| 321 | status = pjmedia_sdp_neg_get_active_local(inv->neg, &local_sdp); |
| 322 | if (status != PJ_SUCCESS) { |
Benny Prijono | bcaed6c | 2006-02-19 15:37:19 +0000 | [diff] [blame^] | 323 | pjsua_perror(THIS_FILE, |
| 324 | "Unable to retrieve currently active local SDP", |
| 325 | status); |
Benny Prijono | 84126ab | 2006-02-09 09:30:09 +0000 | [diff] [blame] | 326 | return; |
| 327 | } |
| 328 | |
| 329 | |
| 330 | status = pjmedia_sdp_neg_get_active_remote(inv->neg, &remote_sdp); |
| 331 | if (status != PJ_SUCCESS) { |
Benny Prijono | bcaed6c | 2006-02-19 15:37:19 +0000 | [diff] [blame^] | 332 | pjsua_perror(THIS_FILE, |
| 333 | "Unable to retrieve currently active remote SDP", |
| 334 | status); |
Benny Prijono | 84126ab | 2006-02-09 09:30:09 +0000 | [diff] [blame] | 335 | return; |
| 336 | } |
| 337 | |
| 338 | |
| 339 | /* Create new media session. |
| 340 | * The media session is active immediately. |
| 341 | */ |
| 342 | |
| 343 | if (!pjsua.null_audio) { |
| 344 | |
| 345 | status = pjmedia_session_create( pjsua.med_endpt, 1, &pjsua.med_skinfo, |
| 346 | local_sdp, remote_sdp, |
| 347 | &inv_data->session ); |
| 348 | if (status != PJ_SUCCESS) { |
Benny Prijono | bcaed6c | 2006-02-19 15:37:19 +0000 | [diff] [blame^] | 349 | pjsua_perror(THIS_FILE, "Unable to create media session", |
| 350 | status); |
Benny Prijono | 84126ab | 2006-02-09 09:30:09 +0000 | [diff] [blame] | 351 | return; |
| 352 | } |
| 353 | |
| 354 | PJ_LOG(3,(THIS_FILE,"Media has been started successfully")); |
| 355 | } |
| 356 | } |
Benny Prijono | 834aee3 | 2006-02-19 01:38:06 +0000 | [diff] [blame] | 357 | |
| 358 | |
| 359 | /* |
| 360 | * Terminate all calls. |
| 361 | */ |
| 362 | void pjsua_inv_shutdown() |
| 363 | { |
| 364 | struct pjsua_inv_data *inv_data, *next; |
| 365 | |
| 366 | inv_data = pjsua.inv_list.next; |
| 367 | while (inv_data != &pjsua.inv_list) { |
| 368 | pjsip_tx_data *tdata; |
| 369 | |
| 370 | next = inv_data->next; |
| 371 | |
| 372 | if (pjsip_inv_end_session(inv_data->inv, 410, NULL, &tdata)==0) |
| 373 | pjsip_inv_send_msg(inv_data->inv, tdata, NULL); |
| 374 | |
| 375 | inv_data = next; |
| 376 | } |
| 377 | } |
| 378 | |