Line data Source code
1 : /*
2 : * Copyright (C) 2004-2025 Savoir-faire Linux Inc.
3 : *
4 : * This program is free software: you can redistribute it and/or modify
5 : * it under the terms of the GNU General Public License as published by
6 : * the Free Software Foundation, either version 3 of the License, or
7 : * (at your option) any later version.
8 : *
9 : * This program is distributed in the hope that it will be useful,
10 : * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 : * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 : * GNU General Public License for more details.
13 : *
14 : * You should have received a copy of the GNU General Public License
15 : * along with this program. If not, see <https://www.gnu.org/licenses/>.
16 : */
17 :
18 : #include "sip/sipvoiplink.h"
19 :
20 : #ifdef HAVE_CONFIG_H
21 : #include "config.h"
22 : #endif
23 :
24 : #include "sdp.h"
25 : #include "sip/sipcall.h"
26 : #include "sip/sipaccount.h"
27 :
28 : #include "jamidht/jamiaccount.h"
29 :
30 : #include "manager.h"
31 :
32 : #include "im/instant_messaging.h"
33 : #include "system_codec_container.h"
34 : #include "audio/audio_rtp_session.h"
35 :
36 : #ifdef ENABLE_VIDEO
37 : #include "video/video_rtp_session.h"
38 : #include "client/videomanager.h"
39 : #endif
40 :
41 : #include "pres_sub_server.h"
42 :
43 : #include "connectivity/sip_utils.h"
44 : #include "string_utils.h"
45 : #include "logger.h"
46 :
47 : #include <dhtnet/ip_utils.h>
48 : #include <opendht/thread_pool.h>
49 :
50 : #include <pjsip/sip_endpoint.h>
51 : #include <pjsip/sip_uri.h>
52 :
53 : #include <pjsip-simple/presence.h>
54 : #include <pjsip-simple/publish.h>
55 :
56 : // Only PJSIP 2.10 is supported.
57 : #if PJ_VERSION_NUM < (2 << 24 | 10 << 16)
58 : #error "Unsupported PJSIP version (requires version 2.10+)"
59 : #endif
60 :
61 : #include <istream>
62 : #include <algorithm>
63 : #include <regex>
64 :
65 : namespace jami {
66 :
67 : using sip_utils::CONST_PJ_STR;
68 :
69 : /**************** EXTERN VARIABLES AND FUNCTIONS (callbacks) **************************/
70 :
71 : static pjsip_endpoint* endpt_;
72 : static pjsip_module mod_ua_;
73 :
74 : static void invite_session_state_changed_cb(pjsip_inv_session* inv, pjsip_event* e);
75 : static void outgoing_request_forked_cb(pjsip_inv_session* inv, pjsip_event* e);
76 : static void transaction_state_changed_cb(pjsip_inv_session* inv, pjsip_transaction* tsx, pjsip_event* e);
77 : // Called when an SDP offer is found in answer. This will occur
78 : // when we send an empty invite (no SDP). In this case, we should
79 : // expect an offer in a the 200 OK message
80 : static void on_rx_offer2(pjsip_inv_session* inv, struct pjsip_inv_on_rx_offer_cb_param* param);
81 : // Called when a re-invite is received
82 : static pj_status_t reinvite_received_cb(pjsip_inv_session* inv, const pjmedia_sdp_session* offer, pjsip_rx_data* rdata);
83 : // Called to request an SDP offer if the peer sent an invite or
84 : // a re-invite with no SDP. In this, we must provide an offer in
85 : // the answer (200 OK) if we accept the call
86 : static void sdp_create_offer_cb(pjsip_inv_session* inv, pjmedia_sdp_session** p_offer);
87 : // Called to report media (SDP) negotiation result
88 : static void sdp_media_update_cb(pjsip_inv_session* inv, pj_status_t status);
89 :
90 : static std::shared_ptr<SIPCall> getCallFromInvite(pjsip_inv_session* inv);
91 : #ifdef DEBUG_SIP_REQUEST_MSG
92 : static void processInviteResponseHelper(pjsip_inv_session* inv, pjsip_event* e);
93 : #endif
94 :
95 : static pj_bool_t
96 5 : handleIncomingOptions(pjsip_rx_data* rdata)
97 : {
98 : pjsip_tx_data* tdata;
99 :
100 5 : auto dlg = pjsip_rdata_get_dlg(rdata);
101 5 : if (dlg) {
102 0 : JAMI_INFO("Processing in-dialog option request");
103 0 : if (pjsip_dlg_create_response(dlg, rdata, PJSIP_SC_OK, NULL, &tdata) != PJ_SUCCESS) {
104 0 : JAMI_ERR("Failed to create in-dialog response for option request");
105 0 : return PJ_FALSE;
106 : }
107 : } else {
108 5 : JAMI_INFO("Processing out-of-dialog option request");
109 5 : if (pjsip_endpt_create_response(endpt_, rdata, PJSIP_SC_OK, NULL, &tdata) != PJ_SUCCESS) {
110 0 : JAMI_ERR("Failed to create out-of-dialog response for option request");
111 0 : return PJ_FALSE;
112 : }
113 : }
114 :
115 : #define ADD_HDR(hdr) \
116 : do { \
117 : const pjsip_hdr* cap_hdr = hdr; \
118 : if (cap_hdr) \
119 : pjsip_msg_add_hdr(tdata->msg, (pjsip_hdr*) pjsip_hdr_clone(tdata->pool, cap_hdr)); \
120 : } while (0)
121 : #define ADD_CAP(cap) ADD_HDR(pjsip_endpt_get_capability(endpt_, cap, NULL));
122 :
123 5 : ADD_CAP(PJSIP_H_ALLOW);
124 5 : ADD_CAP(PJSIP_H_ACCEPT);
125 5 : ADD_CAP(PJSIP_H_SUPPORTED);
126 5 : ADD_HDR(pjsip_evsub_get_allow_events_hdr(NULL));
127 :
128 5 : if (dlg) {
129 0 : if (pjsip_dlg_send_response(dlg, pjsip_rdata_get_tsx(rdata), tdata) != PJ_SUCCESS) {
130 0 : JAMI_ERR("Failed to send in-dialog response for option request");
131 0 : return PJ_FALSE;
132 : }
133 :
134 0 : JAMI_INFO("Sent in-dialog response for option request");
135 0 : return PJ_TRUE;
136 : }
137 :
138 : pjsip_response_addr res_addr;
139 5 : pjsip_get_response_addr(tdata->pool, rdata, &res_addr);
140 :
141 5 : if (pjsip_endpt_send_response(endpt_, &res_addr, tdata, NULL, NULL) != PJ_SUCCESS) {
142 0 : pjsip_tx_data_dec_ref(tdata);
143 0 : JAMI_ERR("Failed to send out-of-dialog response for option request");
144 0 : return PJ_FALSE;
145 : }
146 :
147 5 : JAMI_INFO("Sent out-of-dialog response for option request");
148 5 : return PJ_TRUE;
149 : }
150 :
151 : // return PJ_FALSE so that eventually other modules will handle these requests
152 : // TODO: move Voicemail to separate module
153 : static pj_bool_t
154 0 : transaction_response_cb(pjsip_rx_data* rdata)
155 : {
156 0 : pjsip_dialog* dlg = pjsip_rdata_get_dlg(rdata);
157 :
158 0 : if (!dlg)
159 0 : return PJ_FALSE;
160 :
161 0 : pjsip_transaction* tsx = pjsip_rdata_get_tsx(rdata);
162 :
163 0 : if (!tsx or tsx->method.id != PJSIP_INVITE_METHOD)
164 0 : return PJ_FALSE;
165 :
166 0 : if (tsx->status_code / 100 == 2) {
167 : /**
168 : * Send an ACK message inside a transaction. PJSIP send automatically, non-2xx ACK response.
169 : * ACK for a 2xx response must be send using this method.
170 : */
171 : pjsip_tx_data* tdata;
172 :
173 0 : if (rdata->msg_info.cseq) {
174 0 : pjsip_dlg_create_request(dlg, &pjsip_ack_method, rdata->msg_info.cseq->cseq, &tdata);
175 0 : pjsip_dlg_send_request(dlg, tdata, -1, NULL);
176 : }
177 : }
178 :
179 0 : return PJ_FALSE;
180 : }
181 :
182 : static pj_status_t
183 0 : try_respond_stateless(pjsip_endpoint* endpt,
184 : pjsip_rx_data* rdata,
185 : int st_code,
186 : const pj_str_t* st_text,
187 : const pjsip_hdr* hdr_list,
188 : const pjsip_msg_body* body)
189 : {
190 : /* Check that no UAS transaction has been created for this request.
191 : * If UAS transaction has been created for this request, application
192 : * MUST send the response statefully using that transaction.
193 : */
194 0 : if (!pjsip_rdata_get_tsx(rdata))
195 0 : return pjsip_endpt_respond_stateless(endpt, rdata, st_code, st_text, hdr_list, body);
196 : else
197 0 : JAMI_ERR("Transaction has been created for this request, send response "
198 : "statefully instead");
199 :
200 0 : return !PJ_SUCCESS;
201 : }
202 :
203 : template<typename T>
204 : bool
205 106 : is_uninitialized(std::weak_ptr<T> const& weak)
206 : {
207 : using wt = std::weak_ptr<T>;
208 106 : return !weak.owner_before(wt {}) && !wt {}.owner_before(weak);
209 : }
210 :
211 : static pj_bool_t
212 106 : transaction_request_cb(pjsip_rx_data* rdata)
213 : {
214 106 : if (!rdata or !rdata->msg_info.msg) {
215 0 : JAMI_ERR("rx_data is NULL");
216 0 : return PJ_FALSE;
217 : }
218 :
219 106 : pjsip_method* method = &rdata->msg_info.msg->line.req.method;
220 :
221 106 : if (!method) {
222 0 : JAMI_ERR("method is NULL");
223 0 : return PJ_FALSE;
224 : }
225 :
226 106 : if (method->id == PJSIP_ACK_METHOD && pjsip_rdata_get_dlg(rdata))
227 0 : return PJ_FALSE;
228 :
229 106 : if (!rdata->msg_info.to or !rdata->msg_info.from or !rdata->msg_info.via) {
230 0 : JAMI_ERR("Missing From, To or Via fields");
231 0 : return PJ_FALSE;
232 : }
233 :
234 106 : const auto sip_to_uri = reinterpret_cast<pjsip_sip_uri*>(pjsip_uri_get_uri(rdata->msg_info.to->uri));
235 106 : const auto sip_from_uri = reinterpret_cast<pjsip_sip_uri*>(pjsip_uri_get_uri(rdata->msg_info.from->uri));
236 106 : const pjsip_host_port& sip_via = rdata->msg_info.via->sent_by;
237 :
238 106 : if (!sip_to_uri or !sip_from_uri or !sip_via.host.ptr) {
239 0 : JAMI_ERR("NULL URI");
240 0 : return PJ_FALSE;
241 : }
242 :
243 106 : std::string_view toUsername(sip_to_uri->user.ptr, sip_to_uri->user.slen);
244 106 : std::string_view toHost(sip_to_uri->host.ptr, sip_to_uri->host.slen);
245 106 : std::string_view viaHostname(sip_via.host.ptr, sip_via.host.slen);
246 106 : const std::string_view remote_user(sip_from_uri->user.ptr, sip_from_uri->user.slen);
247 106 : const std::string_view remote_hostname(sip_from_uri->host.ptr, sip_from_uri->host.slen);
248 106 : std::string peerNumber;
249 106 : if (not remote_user.empty() and not remote_hostname.empty())
250 106 : peerNumber = remote_user + "@" + remote_hostname;
251 : else {
252 : char tmp[PJSIP_MAX_URL_SIZE];
253 0 : size_t length = pjsip_uri_print(PJSIP_URI_IN_FROMTO_HDR, sip_from_uri, tmp, PJSIP_MAX_URL_SIZE);
254 0 : peerNumber = sip_utils::stripSipUriPrefix(std::string_view(tmp, length));
255 : }
256 :
257 106 : auto transport = Manager::instance().sipVoIPLink().sipTransportBroker->addTransport(rdata->tp_info.transport);
258 :
259 106 : std::shared_ptr<SIPAccountBase> account;
260 : // If transport account is default-constructed, guessing account is allowed
261 106 : const auto& waccount = transport ? transport->getAccount() : std::weak_ptr<SIPAccountBase> {};
262 106 : if (is_uninitialized(waccount)) {
263 15 : account = Manager::instance().sipVoIPLink().guessAccount(toUsername, viaHostname, remote_hostname);
264 15 : if (not account)
265 0 : return PJ_FALSE;
266 15 : if (not transport and account->getAccountType() == SIPAccount::ACCOUNT_TYPE) {
267 0 : if (not(transport = std::static_pointer_cast<SIPAccount>(account)->getTransport())) {
268 0 : JAMI_ERR("No suitable transport to answer this call.");
269 0 : return PJ_FALSE;
270 : }
271 0 : JAMI_WARN("Using transport from account.");
272 : }
273 91 : } else if (!(account = waccount.lock())) {
274 0 : JAMI_ERR("Dropping SIP request: account is expired.");
275 0 : return PJ_FALSE;
276 : }
277 :
278 106 : pjsip_msg_body* body = rdata->msg_info.msg->body;
279 :
280 106 : if (method->id == PJSIP_OTHER_METHOD) {
281 0 : std::string_view request = sip_utils::as_view(method->name);
282 :
283 0 : if (request.find(sip_utils::SIP_METHODS::NOTIFY) != std::string_view::npos) {
284 0 : if (body and body->data) {
285 0 : std::string_view body_view(static_cast<char*>(body->data), body->len);
286 0 : auto pos = body_view.find("Voice-Message: ");
287 0 : if (pos != std::string_view::npos) {
288 0 : int newCount {0};
289 0 : int oldCount {0};
290 0 : int urgentCount {0};
291 0 : std::string sp(body_view.substr(pos));
292 0 : int ret = sscanf(sp.c_str(), "Voice-Message: %d/%d (%d/", &newCount, &oldCount, &urgentCount);
293 :
294 : // According to rfc3842
295 : // urgent messages are optional
296 0 : if (ret >= 2)
297 0 : emitSignal<libjami::CallSignal::VoiceMailNotify>(account->getAccountID(),
298 : newCount,
299 : oldCount,
300 : urgentCount);
301 0 : }
302 : }
303 0 : } else if (request.find(sip_utils::SIP_METHODS::MESSAGE) != std::string_view::npos) {
304 : // Reply 200 immediately (RFC 3428, ch. 7)
305 0 : try_respond_stateless(endpt_, rdata, PJSIP_SC_OK, nullptr, nullptr, nullptr);
306 : // Process message content in case of multi-part body
307 0 : auto payloads = im::parseSipMessage(rdata->msg_info.msg);
308 0 : if (payloads.size() > 0) {
309 0 : constexpr pj_str_t STR_MESSAGE_ID = jami::sip_utils::CONST_PJ_STR("Message-ID");
310 0 : auto* msgId = (pjsip_generic_string_hdr*) pjsip_msg_find_hdr_by_name(rdata->msg_info.msg,
311 : &STR_MESSAGE_ID,
312 : nullptr);
313 0 : std::string id = {};
314 0 : if (!msgId) {
315 : // Supports IMDN message format https://tools.ietf.org/html/rfc5438#section-7.1.1.3
316 0 : constexpr pj_str_t STR_IMDN_MESSAGE_ID = jami::sip_utils::CONST_PJ_STR("imdn.Message-ID");
317 0 : msgId = (pjsip_generic_string_hdr*) pjsip_msg_find_hdr_by_name(rdata->msg_info.msg,
318 : &STR_IMDN_MESSAGE_ID,
319 : nullptr);
320 : }
321 0 : if (msgId)
322 0 : id = std::string(msgId->hvalue.ptr, msgId->hvalue.slen);
323 :
324 0 : if (not id.empty()) {
325 : try {
326 : // Mark message as treated
327 0 : auto intid = from_hex_string(id);
328 0 : auto acc = std::dynamic_pointer_cast<JamiAccount>(account);
329 0 : if (acc and acc->isMessageTreated(intid))
330 0 : return PJ_FALSE;
331 0 : } catch (...) {
332 0 : }
333 : }
334 0 : account->onTextMessage(id, peerNumber, transport->getTlsInfos().peerCert, payloads);
335 0 : }
336 0 : return PJ_FALSE;
337 0 : }
338 :
339 0 : try_respond_stateless(endpt_, rdata, PJSIP_SC_OK, NULL, NULL, NULL);
340 :
341 0 : return PJ_FALSE;
342 106 : } else if (method->id == PJSIP_OPTIONS_METHOD) {
343 5 : return handleIncomingOptions(rdata);
344 101 : } else if (method->id != PJSIP_INVITE_METHOD && method->id != PJSIP_ACK_METHOD) {
345 0 : try_respond_stateless(endpt_, rdata, PJSIP_SC_METHOD_NOT_ALLOWED, NULL, NULL, NULL);
346 0 : return PJ_FALSE;
347 : }
348 :
349 101 : if (method->id == PJSIP_INVITE_METHOD) {
350 : // Log headers of received INVITE
351 101 : JAMI_INFO("Received a SIP INVITE request");
352 101 : sip_utils::logMessageHeaders(&rdata->msg_info.msg->hdr);
353 : }
354 :
355 101 : pjmedia_sdp_session* r_sdp {nullptr};
356 101 : if (body) {
357 101 : if (pjmedia_sdp_parse(rdata->tp_info.pool, (char*) body->data, body->len, &r_sdp) != PJ_SUCCESS) {
358 0 : JAMI_WARN("Failed to parse the SDP in offer");
359 0 : r_sdp = nullptr;
360 : }
361 : }
362 :
363 101 : if (not account->hasActiveCodec(MEDIA_AUDIO)) {
364 0 : try_respond_stateless(endpt_, rdata, PJSIP_SC_NOT_ACCEPTABLE_HERE, NULL, NULL, NULL);
365 0 : return PJ_FALSE;
366 : }
367 :
368 : // Verify that we can handle the request
369 101 : unsigned options = 0;
370 :
371 101 : if (pjsip_inv_verify_request(rdata, &options, NULL, NULL, endpt_, NULL) != PJ_SUCCESS) {
372 0 : JAMI_ERR("Unable to verify INVITE request in secure dialog.");
373 0 : try_respond_stateless(endpt_, rdata, PJSIP_SC_METHOD_NOT_ALLOWED, NULL, NULL, NULL);
374 0 : return PJ_FALSE;
375 : }
376 :
377 : // Build the initial media using the remote offer.
378 101 : auto localMediaList = Sdp::getMediaAttributeListFromSdp(r_sdp);
379 :
380 : // To enable video, it must be enabled in the remote and locally (i.e. in the account)
381 282 : for (auto& media : localMediaList) {
382 181 : if (media.type_ == MediaType::MEDIA_VIDEO) {
383 79 : media.enabled_ &= account->isVideoEnabled();
384 : }
385 : }
386 :
387 303 : auto call = account->newIncomingCall(std::string(remote_user),
388 202 : MediaAttribute::mediaAttributesToMediaMaps(localMediaList),
389 202 : transport);
390 101 : if (!call) {
391 0 : return PJ_FALSE;
392 : }
393 :
394 101 : call->setPeerUaVersion(sip_utils::getPeerUserAgent(rdata));
395 : // The username can be used to join specific calls in conversations
396 101 : call->toUsername(std::string(toUsername));
397 :
398 : // FIXME: for now, use the same address family as the SIP transport
399 101 : auto family = pjsip_transport_type_get_af(pjsip_transport_get_type_from_flag(transport->get()->flag));
400 :
401 101 : dhtnet::IpAddr addrSdp;
402 101 : if (account->getUPnPActive()) {
403 : /* use UPnP addr, or published addr if its set */
404 0 : addrSdp = account->getPublishedSameasLocal() ? account->getUPnPIpAddress() : account->getPublishedIpAddress();
405 : } else {
406 202 : addrSdp = account->isStunEnabled() or (not account->getPublishedSameasLocal())
407 101 : ? account->getPublishedIpAddress()
408 101 : : dhtnet::ip_utils::getInterfaceAddr(account->getLocalInterface(), family);
409 : }
410 :
411 : /* fallback on local address */
412 101 : if (not addrSdp)
413 0 : addrSdp = dhtnet::ip_utils::getInterfaceAddr(account->getLocalInterface(), family);
414 :
415 : // Try to obtain display name from From: header first, fallback on Contact:
416 101 : auto peerDisplayName = sip_utils::parseDisplayName(rdata->msg_info.from);
417 101 : if (peerDisplayName.empty()) {
418 0 : if (auto hdr = static_cast<const pjsip_contact_hdr*>(
419 0 : pjsip_msg_find_hdr(rdata->msg_info.msg, PJSIP_H_CONTACT, nullptr))) {
420 0 : peerDisplayName = sip_utils::parseDisplayName(hdr);
421 : }
422 : }
423 :
424 101 : call->setPeerNumber(peerNumber);
425 101 : call->setPeerUri(account->getToUri(peerNumber));
426 101 : call->setPeerDisplayName(peerDisplayName);
427 101 : call->setState(Call::ConnectionState::PROGRESSING);
428 101 : call->getSDP().setPublishedIP(addrSdp);
429 101 : call->setPeerAllowMethods(sip_utils::getPeerAllowMethods(rdata));
430 :
431 : // Set the temporary media list. Might change when we receive
432 : // the accept from the client.
433 101 : if (r_sdp != nullptr) {
434 101 : call->getSDP().setReceivedOffer(r_sdp);
435 : }
436 :
437 101 : pjsip_dialog* dialog = nullptr;
438 101 : if (pjsip_dlg_create_uas_and_inc_lock(pjsip_ua_instance(), rdata, nullptr, &dialog) != PJ_SUCCESS) {
439 0 : JAMI_ERR("Unable to create UAS");
440 0 : call.reset();
441 0 : try_respond_stateless(endpt_, rdata, PJSIP_SC_INTERNAL_SERVER_ERROR, nullptr, nullptr, nullptr);
442 0 : return PJ_FALSE;
443 : }
444 :
445 101 : pjsip_tpselector tp_sel = SIPVoIPLink::getTransportSelector(transport->get());
446 101 : if (!dialog or pjsip_dlg_set_transport(dialog, &tp_sel) != PJ_SUCCESS) {
447 0 : JAMI_ERR("Unable to set transport for dialog");
448 0 : if (dialog)
449 0 : pjsip_dlg_dec_lock(dialog);
450 0 : return PJ_FALSE;
451 : }
452 :
453 101 : pjsip_inv_session* inv = nullptr;
454 : // Create UAS for the invite.
455 : // The SDP is not set here, it will be done when the call is
456 : // accepted and the media attributes of the answer are known.
457 101 : pjsip_inv_create_uas(dialog, rdata, NULL, PJSIP_INV_SUPPORT_ICE, &inv);
458 101 : if (!inv) {
459 0 : JAMI_ERR("Call invite is not initialized");
460 0 : pjsip_dlg_dec_lock(dialog);
461 0 : return PJ_FALSE;
462 : }
463 :
464 : // dialog is now owned by invite
465 101 : pjsip_dlg_dec_lock(dialog);
466 :
467 101 : inv->mod_data[mod_ua_.id] = call.get();
468 101 : call->setInviteSession(inv);
469 :
470 : // Check whether Replaces header is present in the request and process accordingly.
471 : pjsip_dialog* replaced_dlg;
472 : pjsip_tx_data* response;
473 :
474 101 : if (pjsip_replaces_verify_request(rdata, &replaced_dlg, PJ_FALSE, &response) != PJ_SUCCESS) {
475 0 : JAMI_ERR("Something wrong with Replaces request.");
476 0 : call.reset();
477 :
478 : // Something wrong with the Replaces header.
479 0 : if (response) {
480 : pjsip_response_addr res_addr;
481 0 : pjsip_get_response_addr(response->pool, rdata, &res_addr);
482 0 : pjsip_endpt_send_response(endpt_, &res_addr, response, NULL, NULL);
483 : } else {
484 0 : try_respond_stateless(endpt_, rdata, PJSIP_SC_INTERNAL_SERVER_ERROR, NULL, NULL, NULL);
485 : }
486 :
487 0 : return PJ_FALSE;
488 : }
489 :
490 : // Check if call has been transferred
491 101 : pjsip_tx_data* tdata = nullptr;
492 :
493 101 : if (pjsip_inv_initial_answer(call->inviteSession_.get(), rdata, PJSIP_SC_TRYING, NULL, NULL, &tdata) != PJ_SUCCESS) {
494 0 : JAMI_ERR("Unable to create answer TRYING");
495 0 : return PJ_FALSE;
496 : }
497 :
498 : // Add user-agent header
499 101 : sip_utils::addUserAgentHeader(account->getUserAgentName(), tdata);
500 :
501 101 : if (pjsip_inv_send_msg(call->inviteSession_.get(), tdata) != PJ_SUCCESS) {
502 0 : JAMI_ERR("Unable to send msg TRYING");
503 0 : return PJ_FALSE;
504 : }
505 :
506 101 : call->setState(Call::ConnectionState::TRYING);
507 :
508 101 : if (pjsip_inv_answer(call->inviteSession_.get(), PJSIP_SC_RINGING, NULL, NULL, &tdata) != PJ_SUCCESS) {
509 0 : JAMI_ERR("Unable to create answer RINGING");
510 0 : return PJ_FALSE;
511 : }
512 :
513 101 : sip_utils::addContactHeader(call->getContactHeader(), tdata);
514 101 : if (pjsip_inv_send_msg(call->inviteSession_.get(), tdata) != PJ_SUCCESS) {
515 0 : JAMI_ERR("Unable to send msg RINGING");
516 0 : return PJ_FALSE;
517 : }
518 :
519 101 : call->setState(Call::ConnectionState::RINGING);
520 :
521 101 : Manager::instance().incomingCall(account->getAccountID(), *call);
522 :
523 101 : if (replaced_dlg) {
524 : // Get the INVITE session associated with the replaced dialog.
525 0 : auto replaced_inv = pjsip_dlg_get_inv_session(replaced_dlg);
526 :
527 : // Disconnect the "replaced" INVITE session.
528 0 : if (pjsip_inv_end_session(replaced_inv, PJSIP_SC_GONE, nullptr, &tdata) == PJ_SUCCESS && tdata) {
529 0 : pjsip_inv_send_msg(replaced_inv, tdata);
530 : }
531 :
532 : // Close call at application level
533 0 : if (auto replacedCall = getCallFromInvite(replaced_inv))
534 0 : replacedCall->hangup(PJSIP_SC_OK);
535 : }
536 :
537 101 : return PJ_FALSE;
538 106 : }
539 :
540 : static void
541 341 : tp_state_callback(pjsip_transport* tp, pjsip_transport_state state, const pjsip_transport_state_info* info)
542 : {
543 341 : if (auto& broker = Manager::instance().sipVoIPLink().sipTransportBroker)
544 341 : broker->transportStateChanged(tp, state, info);
545 : else
546 0 : JAMI_ERR("SIPVoIPLink with invalid SipTransportBroker");
547 341 : }
548 :
549 : /*************************************************************************************************/
550 :
551 : pjsip_endpoint*
552 5 : SIPVoIPLink::getEndpoint()
553 : {
554 5 : return endpt_;
555 : }
556 :
557 : pjsip_module*
558 0 : SIPVoIPLink::getMod()
559 : {
560 0 : return &mod_ua_;
561 : }
562 :
563 : pj_pool_t*
564 8 : SIPVoIPLink::getPool() noexcept
565 : {
566 8 : return pool_.get();
567 : }
568 :
569 : pj_caching_pool*
570 1650 : SIPVoIPLink::getCachingPool() noexcept
571 : {
572 1650 : return &cp_;
573 : }
574 :
575 32 : SIPVoIPLink::SIPVoIPLink()
576 32 : : pool_(nullptr)
577 : {
578 : #define TRY(ret) \
579 : do { \
580 : if ((ret) != PJ_SUCCESS) \
581 : throw VoipLinkException(#ret " failed"); \
582 : } while (0)
583 :
584 32 : pj_caching_pool_init(&cp_, &pj_pool_factory_default_policy, 0);
585 32 : pool_.reset(pj_pool_create(&cp_.factory, PACKAGE, 64 * 1024, 4096, nullptr));
586 32 : if (!pool_)
587 0 : throw VoipLinkException("UserAgent: Unable to initialize memory pool");
588 :
589 32 : TRY(pjsip_endpt_create(&cp_.factory, pj_gethostname()->ptr, &endpt_));
590 :
591 32 : auto ns = dhtnet::ip_utils::getLocalNameservers();
592 32 : if (not ns.empty()) {
593 32 : std::vector<pj_str_t> dns_nameservers(ns.size());
594 32 : std::vector<pj_uint16_t> dns_ports(ns.size());
595 96 : for (unsigned i = 0, n = ns.size(); i < n; i++) {
596 : char hbuf[NI_MAXHOST];
597 64 : if (auto ret
598 64 : = getnameinfo((sockaddr*) &ns[i], ns[i].getLength(), hbuf, sizeof(hbuf), nullptr, 0, NI_NUMERICHOST)) {
599 0 : JAMI_WARN("Error printing SIP nameserver: %s", gai_strerror(ret));
600 : } else {
601 64 : JAMI_DBG("Using SIP nameserver: %s", hbuf);
602 64 : pj_strdup2(pool_.get(), &dns_nameservers[i], hbuf);
603 64 : dns_ports[i] = ns[i].getPort();
604 : }
605 : }
606 : pj_dns_resolver* resv;
607 32 : if (auto ret = pjsip_endpt_create_resolver(endpt_, &resv)) {
608 0 : JAMI_WARN("Error creating SIP DNS resolver: %s", sip_utils::sip_strerror(ret).c_str());
609 : } else {
610 32 : if (auto ret = pj_dns_resolver_set_ns(resv,
611 32 : dns_nameservers.size(),
612 32 : dns_nameservers.data(),
613 32 : dns_ports.data())) {
614 0 : JAMI_WARN("Error setting SIP DNS servers: %s", sip_utils::sip_strerror(ret).c_str());
615 : } else {
616 32 : if (auto ret = pjsip_endpt_set_resolver(endpt_, resv)) {
617 0 : JAMI_WARN("Error setting PJSIP DNS resolver: %s", sip_utils::sip_strerror(ret).c_str());
618 : }
619 : }
620 : }
621 32 : }
622 :
623 32 : sipTransportBroker.reset(new SipTransportBroker(endpt_));
624 :
625 32 : auto status = pjsip_tpmgr_set_state_cb(pjsip_endpt_get_tpmgr(endpt_), tp_state_callback);
626 32 : if (status != PJ_SUCCESS)
627 0 : JAMI_ERR("Unable to set transport callback: %s", sip_utils::sip_strerror(status).c_str());
628 :
629 32 : TRY(pjsip_tsx_layer_init_module(endpt_));
630 32 : TRY(pjsip_ua_init_module(endpt_, nullptr));
631 32 : TRY(pjsip_replaces_init_module(endpt_)); // See the Replaces specification in RFC 3891
632 32 : TRY(pjsip_100rel_init_module(endpt_));
633 :
634 : // Initialize and register ring module
635 32 : mod_ua_.name = sip_utils::CONST_PJ_STR(PACKAGE);
636 32 : mod_ua_.id = -1;
637 32 : mod_ua_.priority = PJSIP_MOD_PRIORITY_APPLICATION;
638 32 : mod_ua_.on_rx_request = &transaction_request_cb;
639 32 : mod_ua_.on_rx_response = &transaction_response_cb;
640 32 : TRY(pjsip_endpt_register_module(endpt_, &mod_ua_));
641 :
642 32 : TRY(pjsip_evsub_init_module(endpt_));
643 32 : TRY(pjsip_xfer_init_module(endpt_));
644 :
645 : // presence/publish management
646 32 : TRY(pjsip_pres_init_module(endpt_, pjsip_evsub_instance()));
647 32 : TRY(pjsip_endpt_register_module(endpt_, &PresSubServer::mod_presence_server));
648 :
649 : static const pjsip_inv_callback inv_cb = {
650 : invite_session_state_changed_cb,
651 : outgoing_request_forked_cb,
652 : transaction_state_changed_cb,
653 : nullptr /* on_rx_offer */,
654 : on_rx_offer2,
655 : reinvite_received_cb,
656 : sdp_create_offer_cb,
657 : sdp_media_update_cb,
658 : nullptr /* on_send_ack */,
659 : nullptr /* on_redirected */,
660 : };
661 32 : TRY(pjsip_inv_usage_init(endpt_, &inv_cb));
662 :
663 : static constexpr pj_str_t allowed[] = {
664 : CONST_PJ_STR(sip_utils::SIP_METHODS::INFO),
665 : CONST_PJ_STR(sip_utils::SIP_METHODS::OPTIONS),
666 : CONST_PJ_STR(sip_utils::SIP_METHODS::MESSAGE),
667 : CONST_PJ_STR(sip_utils::SIP_METHODS::PUBLISH),
668 : };
669 :
670 32 : pjsip_endpt_add_capability(endpt_, &mod_ua_, PJSIP_H_ALLOW, nullptr, PJ_ARRAY_SIZE(allowed), allowed);
671 :
672 : static constexpr pj_str_t text_plain = CONST_PJ_STR("text/plain");
673 32 : pjsip_endpt_add_capability(endpt_, &mod_ua_, PJSIP_H_ACCEPT, nullptr, 1, &text_plain);
674 :
675 : static constexpr pj_str_t accepted = CONST_PJ_STR("application/sdp");
676 32 : pjsip_endpt_add_capability(endpt_, &mod_ua_, PJSIP_H_ACCEPT, nullptr, 1, &accepted);
677 :
678 : static constexpr pj_str_t iscomposing = CONST_PJ_STR("application/im-iscomposing+xml");
679 32 : pjsip_endpt_add_capability(endpt_, &mod_ua_, PJSIP_H_ACCEPT, nullptr, 1, &iscomposing);
680 :
681 32 : TRY(pjsip_replaces_init_module(endpt_));
682 : #undef TRY
683 :
684 64 : sipThread_ = std::thread([this] {
685 8618 : while (running_)
686 8586 : handleEvents();
687 32 : });
688 :
689 32 : JAMI_DBG("SIPVoIPLink@%p", this);
690 32 : }
691 :
692 32 : SIPVoIPLink::~SIPVoIPLink() {}
693 :
694 : void
695 32 : SIPVoIPLink::shutdown()
696 : {
697 32 : JAMI_DBG("Shutting down SIPVoIPLink@%p…", this);
698 : // Remaining calls should not happen as possible upper callbacks
699 : // may be called and another instance of SIPVoIPLink can be re-created!
700 :
701 32 : if (not Manager::instance().callFactory.empty(Call::LinkType::SIP))
702 0 : JAMI_ERR("%zu SIP calls remains!", Manager::instance().callFactory.callCount(Call::LinkType::SIP));
703 :
704 32 : sipTransportBroker->shutdown();
705 32 : pjsip_tpmgr_set_state_cb(pjsip_endpt_get_tpmgr(endpt_), nullptr);
706 :
707 32 : running_ = false;
708 32 : sipThread_.join();
709 32 : pjsip_endpt_destroy(endpt_);
710 32 : pool_.reset();
711 32 : pj_caching_pool_destroy(&cp_);
712 32 : sipTransportBroker.reset();
713 :
714 32 : JAMI_DBG("SIPVoIPLink@%p shutdown successfully completed", this);
715 32 : }
716 :
717 : std::shared_ptr<SIPAccountBase>
718 15 : SIPVoIPLink::guessAccount(std::string_view userName, std::string_view server, std::string_view fromUri) const
719 : {
720 60 : JAMI_LOG("username = {}, server = {}, from = {}", userName, server, fromUri);
721 : // Attempt to find the account id from username and server name by full match
722 :
723 15 : std::shared_ptr<SIPAccountBase> result;
724 15 : std::shared_ptr<SIPAccountBase> IP2IPAccount;
725 15 : MatchRank best = MatchRank::NONE;
726 :
727 : // SIP accounts
728 42 : for (const auto& account : Manager::instance().getAllAccounts<SIPAccount>()) {
729 33 : const MatchRank match(account->matches(userName, server));
730 :
731 : // return right away if this is a full match
732 33 : if (match == MatchRank::FULL) {
733 6 : return account;
734 27 : } else if (match > best) {
735 9 : best = match;
736 9 : result = account;
737 18 : } else if (!IP2IPAccount && account->isIP2IP()) {
738 : // Allow IP2IP calls if an account exists for this type of calls
739 9 : IP2IPAccount = account;
740 : }
741 15 : }
742 :
743 9 : return result ? result : IP2IPAccount;
744 15 : }
745 :
746 : // Called from EventThread::run (not main thread)
747 : void
748 8586 : SIPVoIPLink::handleEvents()
749 : {
750 8586 : const pj_time_val timeout = {1, 0};
751 8586 : if (auto ret = pjsip_endpt_handle_events(endpt_, &timeout))
752 0 : JAMI_ERR("pjsip_endpt_handle_events failed with error %s", sip_utils::sip_strerror(ret).c_str());
753 8586 : }
754 :
755 : void
756 0 : SIPVoIPLink::registerKeepAliveTimer(pj_timer_entry& timer, pj_time_val& delay)
757 : {
758 0 : JAMI_DEBUG("Register new keepalive timer {:d} with delay {:d}", timer.id, delay.sec);
759 :
760 0 : if (timer.id == -1)
761 0 : JAMI_WARN("Timer already scheduled");
762 :
763 0 : switch (pjsip_endpt_schedule_timer(endpt_, &timer, &delay)) {
764 0 : case PJ_SUCCESS:
765 0 : break;
766 :
767 0 : default:
768 0 : JAMI_ERR("Unable to schedule new timer in pjsip endpoint");
769 :
770 : /* fallthrough */
771 0 : case PJ_EINVAL:
772 0 : JAMI_ERR("Invalid timer or delay entry");
773 0 : break;
774 :
775 0 : case PJ_EINVALIDOP:
776 0 : JAMI_ERR("Invalid timer entry, maybe already scheduled");
777 0 : break;
778 : }
779 0 : }
780 :
781 : void
782 0 : SIPVoIPLink::cancelKeepAliveTimer(pj_timer_entry& timer)
783 : {
784 0 : pjsip_endpt_cancel_timer(endpt_, &timer);
785 0 : }
786 :
787 : ///////////////////////////////////////////////////////////////////////////////
788 : // Private functions
789 : ///////////////////////////////////////////////////////////////////////////////
790 :
791 : static std::shared_ptr<SIPCall>
792 5442 : getCallFromInvite(pjsip_inv_session* inv)
793 : {
794 5442 : if (auto call_ptr = static_cast<SIPCall*>(inv->mod_data[mod_ua_.id]))
795 4605 : return std::static_pointer_cast<SIPCall>(call_ptr->shared_from_this());
796 837 : return nullptr;
797 : }
798 :
799 : static void
800 967 : invite_session_state_changed_cb(pjsip_inv_session* inv, pjsip_event* ev)
801 : {
802 967 : if (inv == nullptr or ev == nullptr) {
803 0 : throw VoipLinkException("Unexpected null pointer");
804 : }
805 :
806 967 : auto call = getCallFromInvite(inv);
807 967 : if (not call)
808 100 : return;
809 :
810 867 : if (ev->type != PJSIP_EVENT_TSX_STATE and ev->type != PJSIP_EVENT_TX_MSG and ev->type != PJSIP_EVENT_RX_MSG) {
811 0 : JAMI_WARN("[call:%s] INVITE@%p state changed to %d (%s): unexpected event type %d",
812 : call->getCallId().c_str(),
813 : inv,
814 : inv->state,
815 : pjsip_inv_state_name(inv->state),
816 : ev->type);
817 0 : return;
818 : }
819 :
820 867 : decltype(pjsip_transaction::status_code) status_code = 0;
821 :
822 867 : if (ev->type == PJSIP_EVENT_TSX_STATE) {
823 687 : const auto tsx = ev->body.tsx_state.tsx;
824 687 : status_code = tsx ? tsx->status_code : PJSIP_SC_NOT_FOUND;
825 687 : const pj_str_t* description = pjsip_get_status_text(status_code);
826 :
827 2748 : JAMI_LOG("[call:{}] INVITE@{:p} state changed to {:d} ({}): cause={:d}, tsx@{:p} status {:d} ({:s})",
828 : call->getCallId(),
829 : fmt::ptr(inv),
830 : (int) inv->state,
831 : pjsip_inv_state_name(inv->state),
832 : (int) inv->cause,
833 : fmt::ptr(tsx),
834 : status_code,
835 : sip_utils::as_view(*description));
836 180 : } else if (ev->type == PJSIP_EVENT_TX_MSG) {
837 360 : JAMI_LOG("[call:{}] INVITE@{:p} state changed to {:d} ({:s}): cause={:d} (TX_MSG)",
838 : call->getCallId(),
839 : fmt::ptr(inv),
840 : (int) inv->state,
841 : pjsip_inv_state_name(inv->state),
842 : (int) inv->cause);
843 : }
844 867 : pjsip_rx_data* rdata {nullptr};
845 867 : if (ev->type == PJSIP_EVENT_RX_MSG) {
846 90 : rdata = ev->body.rx_msg.rdata;
847 777 : } else if (ev->type == PJSIP_EVENT_TSX_STATE and ev->body.tsx_state.type == PJSIP_EVENT_RX_MSG) {
848 283 : rdata = ev->body.tsx_state.src.rdata;
849 : }
850 867 : if (rdata != nullptr) {
851 373 : call->setPeerUaVersion(sip_utils::getPeerUserAgent(rdata));
852 373 : auto methods = sip_utils::getPeerAllowMethods(rdata);
853 373 : if (not methods.empty()) {
854 195 : call->setPeerAllowMethods(std::move(methods));
855 : }
856 373 : }
857 :
858 867 : switch (inv->state) {
859 201 : case PJSIP_INV_STATE_EARLY:
860 201 : if (status_code == PJSIP_SC_RINGING)
861 201 : call->onPeerRinging();
862 201 : break;
863 :
864 180 : case PJSIP_INV_STATE_CONFIRMED:
865 : // After we sent or received a ACK - The connection is established
866 180 : call->onAnswered();
867 180 : break;
868 :
869 102 : case PJSIP_INV_STATE_DISCONNECTED:
870 102 : switch (inv->cause) {
871 : // When a peer's device replies busy
872 2 : case PJSIP_SC_BUSY_HERE:
873 2 : call->onBusyHere();
874 2 : break;
875 : // When the peer manually refuse the call
876 4 : case PJSIP_SC_DECLINE:
877 : case PJSIP_SC_BUSY_EVERYWHERE:
878 4 : if (inv->role != PJSIP_ROLE_UAC)
879 2 : break;
880 : // close call
881 2 : call->onClosed();
882 2 : break;
883 : // The call terminates normally - BYE / CANCEL
884 94 : case PJSIP_SC_OK:
885 : case PJSIP_SC_REQUEST_TERMINATED:
886 94 : call->onClosed();
887 94 : break;
888 :
889 : // Error/unhandled conditions
890 2 : default:
891 2 : call->onFailure(inv->cause);
892 2 : break;
893 : }
894 102 : break;
895 :
896 384 : default:
897 384 : break;
898 : }
899 967 : }
900 :
901 : static void
902 25 : on_rx_offer2(pjsip_inv_session* inv, struct pjsip_inv_on_rx_offer_cb_param* param)
903 : {
904 25 : if (not param or not param->offer) {
905 0 : JAMI_ERR("Invalid offer");
906 25 : return;
907 : }
908 :
909 25 : auto call = getCallFromInvite(inv);
910 25 : if (not call)
911 0 : return;
912 :
913 : // This callback is called whenever a new media offer is found in a
914 : // SIP message, typically in a re-invite and in a '200 OK' (as a
915 : // response to an empty invite).
916 : // Here we only handle the second case. The first case is handled
917 : // in reinvite_received_cb.
918 25 : if (inv->cause != PJSIP_SC_OK) {
919 : // Silently ignore if it's not a '200 OK'
920 25 : return;
921 : }
922 :
923 0 : if (auto call = getCallFromInvite(inv)) {
924 0 : if (auto const& account = call->getAccount().lock()) {
925 0 : call->onReceiveOfferIn200OK(param->offer);
926 0 : }
927 0 : }
928 25 : }
929 :
930 : static pj_status_t
931 25 : reinvite_received_cb(pjsip_inv_session* inv, const pjmedia_sdp_session* offer, pjsip_rx_data* rdata)
932 : {
933 25 : if (!offer)
934 0 : return !PJ_SUCCESS;
935 25 : if (auto call = getCallFromInvite(inv)) {
936 25 : if (auto const& account = call->getAccount().lock()) {
937 25 : return call->onReceiveReinvite(offer, rdata);
938 25 : }
939 25 : }
940 :
941 : // Return success if there is no matching call. The re-invite
942 : // should be ignored.
943 0 : return PJ_SUCCESS;
944 : }
945 :
946 : static void
947 0 : sdp_create_offer_cb(pjsip_inv_session* inv, pjmedia_sdp_session** p_offer)
948 : {
949 0 : auto call = getCallFromInvite(inv);
950 0 : if (not call)
951 0 : return;
952 :
953 0 : auto account = call->getSIPAccount();
954 0 : if (not account) {
955 0 : JAMI_ERR("No account detected");
956 0 : return;
957 : }
958 :
959 0 : if (account->isEmptyOffersEnabled()) {
960 : // Skip if the client wants to send an empty offer.
961 0 : JAMI_DBG("Client requested to send an empty offer (no SDP)");
962 0 : return;
963 : }
964 :
965 0 : auto family = pj_AF_INET();
966 : // FIXME: for now, use the same address family as the SIP transport
967 0 : if (auto dlg = inv->dlg) {
968 0 : if (dlg->tp_sel.type == PJSIP_TPSELECTOR_TRANSPORT) {
969 0 : if (auto tr = dlg->tp_sel.u.transport)
970 0 : family = tr->local_addr.addr.sa_family;
971 0 : } else if (dlg->tp_sel.type == PJSIP_TPSELECTOR_TRANSPORT) {
972 0 : if (auto tr = dlg->tp_sel.u.listener)
973 0 : family = tr->local_addr.addr.sa_family;
974 : }
975 : }
976 0 : auto ifaceAddr = dhtnet::ip_utils::getInterfaceAddr(account->getLocalInterface(), family);
977 :
978 0 : dhtnet::IpAddr address;
979 0 : if (account->getUPnPActive()) {
980 : /* use UPnP addr, or published addr if it's set */
981 0 : address = account->getPublishedSameasLocal() ? account->getUPnPIpAddress() : account->getPublishedIpAddress();
982 : } else {
983 0 : address = account->getPublishedSameasLocal() ? ifaceAddr : account->getPublishedIpAddress();
984 : }
985 :
986 : /* fallback on local address */
987 0 : if (not address)
988 0 : address = ifaceAddr;
989 :
990 0 : auto& sdp = call->getSDP();
991 0 : sdp.setPublishedIP(address);
992 :
993 : // This list should be provided by the client. Kept for backward compatibility.
994 0 : auto const& mediaList = call->getMediaAttributeList();
995 0 : if (mediaList.empty()) {
996 0 : throw VoipLinkException("Unexpected empty media attribute list");
997 : }
998 :
999 0 : JAMI_DBG("Creating a SDP offer using the following media:");
1000 0 : for (auto const& media : mediaList) {
1001 0 : JAMI_DBG("[call %s] Media %s", call->getCallId().c_str(), media.toString(true).c_str());
1002 : }
1003 :
1004 0 : const bool created = sdp.createOffer(mediaList);
1005 :
1006 0 : if (created and p_offer != nullptr)
1007 0 : *p_offer = sdp.getLocalSdpSession();
1008 0 : }
1009 :
1010 : static const pjmedia_sdp_session*
1011 227 : get_active_remote_sdp(pjsip_inv_session* inv)
1012 : {
1013 227 : const pjmedia_sdp_session* sdp_session {};
1014 :
1015 227 : if (pjmedia_sdp_neg_get_active_remote(inv->neg, &sdp_session) != PJ_SUCCESS) {
1016 0 : JAMI_ERR("Active remote not present");
1017 0 : return nullptr;
1018 : }
1019 :
1020 227 : if (pjmedia_sdp_validate(sdp_session) != PJ_SUCCESS) {
1021 0 : JAMI_ERR("Invalid remote SDP session");
1022 0 : return nullptr;
1023 : }
1024 :
1025 227 : return sdp_session;
1026 : }
1027 :
1028 : static const pjmedia_sdp_session*
1029 227 : get_active_local_sdp(pjsip_inv_session* inv)
1030 : {
1031 227 : const pjmedia_sdp_session* sdp_session {};
1032 :
1033 227 : if (pjmedia_sdp_neg_get_active_local(inv->neg, &sdp_session) != PJ_SUCCESS) {
1034 0 : JAMI_ERR("Active local not present");
1035 0 : return nullptr;
1036 : }
1037 :
1038 227 : if (pjmedia_sdp_validate(sdp_session) != PJ_SUCCESS) {
1039 0 : JAMI_ERR("Invalid local SDP session");
1040 0 : return nullptr;
1041 : }
1042 :
1043 227 : return sdp_session;
1044 : }
1045 :
1046 : // This callback is called after SDP offer/answer session has completed.
1047 : static void
1048 230 : sdp_media_update_cb(pjsip_inv_session* inv, pj_status_t status)
1049 : {
1050 230 : auto call = getCallFromInvite(inv);
1051 230 : if (not call)
1052 2 : return;
1053 :
1054 228 : JAMI_DBG("[call:%s] INVITE@%p media update: status %d", call->getCallId().c_str(), inv, status);
1055 :
1056 228 : if (status != PJ_SUCCESS) {
1057 1 : const int reason = inv->state != PJSIP_INV_STATE_NULL and inv->state != PJSIP_INV_STATE_CONFIRMED
1058 2 : ? PJSIP_SC_UNSUPPORTED_MEDIA_TYPE
1059 : : 0;
1060 :
1061 1 : JAMI_WARN("[call:%s] SDP offer failed, reason %d", call->getCallId().c_str(), reason);
1062 :
1063 1 : call->hangup(reason);
1064 1 : return;
1065 : }
1066 :
1067 : // Fetch SDP data from request
1068 227 : const auto localSDP = get_active_local_sdp(inv);
1069 227 : const auto remoteSDP = get_active_remote_sdp(inv);
1070 :
1071 : // Update our SDP manager
1072 227 : auto& sdp = call->getSDP();
1073 227 : sdp.setActiveLocalSdpSession(localSDP);
1074 227 : if (localSDP != nullptr) {
1075 227 : Sdp::printSession(localSDP, "Local active session:", sdp.getSdpDirection());
1076 : }
1077 :
1078 227 : sdp.setActiveRemoteSdpSession(remoteSDP);
1079 227 : if (remoteSDP != nullptr) {
1080 227 : Sdp::printSession(remoteSDP, "Remote active session:", sdp.getSdpDirection());
1081 : }
1082 :
1083 227 : call->onMediaNegotiationComplete();
1084 230 : }
1085 :
1086 : static void
1087 0 : outgoing_request_forked_cb(pjsip_inv_session* /*inv*/, pjsip_event* /*e*/)
1088 0 : {}
1089 :
1090 : static bool
1091 206 : handleMediaControl(SIPCall& call, pjsip_msg_body* body)
1092 : {
1093 : /*
1094 : * Incoming INFO request for media control.
1095 : */
1096 206 : constexpr pj_str_t STR_APPLICATION = CONST_PJ_STR("application");
1097 206 : constexpr pj_str_t STR_MEDIA_CONTROL_XML = CONST_PJ_STR("media_control+xml");
1098 :
1099 206 : if (body->len and pj_stricmp(&body->content_type.type, &STR_APPLICATION) == 0
1100 412 : and pj_stricmp(&body->content_type.subtype, &STR_MEDIA_CONTROL_XML) == 0) {
1101 206 : auto body_msg = std::string_view((char*) body->data, (size_t) body->len);
1102 :
1103 : /* Apply and answer the INFO request */
1104 : static constexpr auto PICT_FAST_UPDATE = "picture_fast_update"sv;
1105 : static constexpr auto STREAM_ID = "stream_id"sv;
1106 : static constexpr auto DEVICE_ORIENTATION = "device_orientation"sv;
1107 : static constexpr auto RECORDING_STATE = "recording_state"sv;
1108 : static constexpr auto MUTE_STATE = "mute_state"sv;
1109 : static constexpr auto VOICE_ACTIVITY = "voice_activity"sv;
1110 :
1111 206 : int streamIdx = -1;
1112 206 : if (body_msg.find(STREAM_ID) != std::string_view::npos) {
1113 : // Note: here we use the index of the RTP stream, not its label!
1114 : // Indeed, both sides will have different labels as they have different call IDs
1115 195 : static const std::regex STREAMID_REGEX("<stream_id>([0-9]+)</stream_id>");
1116 195 : std::svmatch matched_pattern;
1117 195 : std::regex_search(body_msg, matched_pattern, STREAMID_REGEX);
1118 194 : if (matched_pattern.ready() && !matched_pattern.empty() && matched_pattern[1].matched) {
1119 : try {
1120 194 : streamIdx = std::stoi(matched_pattern[1]);
1121 0 : } catch (const std::exception& e) {
1122 0 : JAMI_WARN("Error parsing stream index: %s", e.what());
1123 0 : }
1124 : }
1125 195 : }
1126 :
1127 206 : if (body_msg.find(PICT_FAST_UPDATE) != std::string_view::npos) {
1128 146 : call.sendKeyframe(streamIdx);
1129 206 : return true;
1130 60 : } else if (body_msg.find(DEVICE_ORIENTATION) != std::string_view::npos) {
1131 49 : static const std::regex ORIENTATION_REGEX("device_orientation=([-+]?[0-9]+)");
1132 :
1133 49 : std::svmatch matched_pattern;
1134 49 : std::regex_search(body_msg, matched_pattern, ORIENTATION_REGEX);
1135 :
1136 49 : if (matched_pattern.ready() && !matched_pattern.empty() && matched_pattern[1].matched) {
1137 : try {
1138 49 : int rotation = -std::stoi(matched_pattern[1]);
1139 49 : while (rotation <= -180)
1140 0 : rotation += 360;
1141 49 : while (rotation > 180)
1142 0 : rotation -= 360;
1143 49 : JAMI_WARN("Rotate video %d deg.", rotation);
1144 : #ifdef ENABLE_VIDEO
1145 49 : call.setRotation(streamIdx, rotation);
1146 : #endif
1147 0 : } catch (const std::exception& e) {
1148 0 : JAMI_WARN("Error parsing angle: %s", e.what());
1149 0 : }
1150 49 : return true;
1151 : }
1152 60 : } else if (body_msg.find(RECORDING_STATE) != std::string_view::npos) {
1153 6 : static const std::regex REC_REGEX("recording_state=([0-1])");
1154 6 : std::svmatch matched_pattern;
1155 6 : std::regex_search(body_msg, matched_pattern, REC_REGEX);
1156 :
1157 6 : if (matched_pattern.ready() && !matched_pattern.empty() && matched_pattern[1].matched) {
1158 : try {
1159 6 : bool state = std::stoi(matched_pattern[1]);
1160 6 : call.peerRecording(state);
1161 0 : } catch (const std::exception& e) {
1162 0 : JAMI_WARN("Error parsing state remote recording: %s", e.what());
1163 0 : }
1164 6 : return true;
1165 : }
1166 11 : } else if (body_msg.find(MUTE_STATE) != std::string_view::npos) {
1167 5 : static const std::regex REC_REGEX("mute_state=([0-1])");
1168 5 : std::svmatch matched_pattern;
1169 5 : std::regex_search(body_msg, matched_pattern, REC_REGEX);
1170 :
1171 5 : if (matched_pattern.ready() && !matched_pattern.empty() && matched_pattern[1].matched) {
1172 : try {
1173 5 : bool state = std::stoi(matched_pattern[1]);
1174 5 : call.peerMuted(state, streamIdx);
1175 0 : } catch (const std::exception& e) {
1176 0 : JAMI_WARN("Error parsing state remote mute: %s", e.what());
1177 0 : }
1178 5 : return true;
1179 : }
1180 5 : } else if (body_msg.find(VOICE_ACTIVITY) != std::string_view::npos) {
1181 0 : static const std::regex REC_REGEX("voice_activity=([0-1])");
1182 0 : std::svmatch matched_pattern;
1183 0 : std::regex_search(body_msg, matched_pattern, REC_REGEX);
1184 :
1185 0 : if (matched_pattern.ready() && !matched_pattern.empty() && matched_pattern[1].matched) {
1186 : try {
1187 0 : bool state = std::stoi(matched_pattern[1]);
1188 0 : call.peerVoice(state);
1189 0 : } catch (const std::exception& e) {
1190 0 : JAMI_WARN("Error parsing state remote voice: %s", e.what());
1191 0 : }
1192 0 : return true;
1193 : }
1194 0 : }
1195 : }
1196 :
1197 0 : return false;
1198 : }
1199 :
1200 : /**
1201 : * Helper function to process refer function on call transfer
1202 : */
1203 : static bool
1204 2 : transferCall(SIPCall& call, const std::string& refer_to)
1205 : {
1206 2 : const auto& callId = call.getCallId();
1207 2 : JAMI_WARN("[call:%s] Attempting to transfer to %s", callId.c_str(), refer_to.c_str());
1208 : try {
1209 4 : Manager::instance().newOutgoingCall(refer_to,
1210 4 : call.getAccountId(),
1211 4 : MediaAttribute::mediaAttributesToMediaMaps(call.getMediaAttributeList()));
1212 2 : Manager::instance().hangupCall(call.getAccountId(), callId);
1213 0 : } catch (const std::exception& e) {
1214 0 : JAMI_ERR("[call:%s] SIP transfer failed: %s", callId.c_str(), e.what());
1215 0 : return false;
1216 0 : }
1217 2 : return true;
1218 : }
1219 :
1220 : static void
1221 208 : replyToRequest(pjsip_inv_session* inv, pjsip_rx_data* rdata, int status_code)
1222 : {
1223 208 : const auto ret = pjsip_dlg_respond(inv->dlg, rdata, status_code, nullptr, nullptr, nullptr);
1224 208 : if (ret != PJ_SUCCESS)
1225 0 : JAMI_WARN("SIP: Failed to reply %d to request", status_code);
1226 208 : }
1227 :
1228 : static void
1229 2 : onRequestRefer(pjsip_inv_session* inv, pjsip_rx_data* rdata, pjsip_msg* msg, SIPCall& call)
1230 : {
1231 : static constexpr pj_str_t str_refer_to = CONST_PJ_STR("Refer-To");
1232 :
1233 2 : if (auto refer_to = static_cast<pjsip_generic_string_hdr*>(
1234 2 : pjsip_msg_find_hdr_by_name(msg, &str_refer_to, nullptr))) {
1235 : // RFC 3515, 2.4.2: reply bad request if no or too many refer-to header.
1236 4 : if (static_cast<void*>(refer_to->next) == static_cast<void*>(&msg->hdr)
1237 2 : or !pjsip_msg_find_hdr_by_name(msg, &str_refer_to, refer_to->next)) {
1238 2 : replyToRequest(inv, rdata, PJSIP_SC_ACCEPTED);
1239 2 : transferCall(call, std::string(refer_to->hvalue.ptr, refer_to->hvalue.slen));
1240 :
1241 : // RFC 3515, 2.4.4: we MUST handle the processing using NOTIFY msgs
1242 : // But your current design doesn't permit that
1243 2 : return;
1244 : } else
1245 0 : JAMI_ERR("[call:%s] REFER: too many Refer-To headers", call.getCallId().c_str());
1246 : } else
1247 0 : JAMI_ERR("[call:%s] REFER: no Refer-To header", call.getCallId().c_str());
1248 :
1249 0 : replyToRequest(inv, rdata, PJSIP_SC_BAD_REQUEST);
1250 : }
1251 :
1252 : static void
1253 206 : onRequestInfo(pjsip_inv_session* inv, pjsip_rx_data* rdata, pjsip_msg* msg, SIPCall& call)
1254 : {
1255 206 : if (!msg->body or handleMediaControl(call, msg->body))
1256 206 : replyToRequest(inv, rdata, PJSIP_SC_OK);
1257 206 : }
1258 :
1259 : static void
1260 0 : onRequestNotify(pjsip_inv_session* /*inv*/, pjsip_rx_data* /*rdata*/, pjsip_msg* msg, SIPCall& call)
1261 : {
1262 0 : if (!msg->body)
1263 0 : return;
1264 :
1265 0 : const std::string bodyText {static_cast<char*>(msg->body->data), msg->body->len};
1266 0 : JAMI_DBG("[call:%s] NOTIFY body start - %p\n%s\n[call:%s] NOTIFY body end - %p",
1267 : call.getCallId().c_str(),
1268 : msg->body,
1269 : bodyText.c_str(),
1270 : call.getCallId().c_str(),
1271 : msg->body);
1272 :
1273 : // TODO
1274 0 : }
1275 :
1276 : static void
1277 4195 : transaction_state_changed_cb(pjsip_inv_session* inv, pjsip_transaction* tsx, pjsip_event* event)
1278 : {
1279 4195 : auto call = getCallFromInvite(inv);
1280 4195 : if (not call)
1281 735 : return;
1282 :
1283 : #ifdef DEBUG_SIP_REQUEST_MSG
1284 : processInviteResponseHelper(inv, event);
1285 : #endif
1286 :
1287 : // We process here only incoming request message
1288 3458 : if (tsx->role != PJSIP_ROLE_UAS or tsx->state != PJSIP_TSX_STATE_TRYING
1289 555 : or event->body.tsx_state.type != PJSIP_EVENT_RX_MSG) {
1290 2903 : return;
1291 : }
1292 :
1293 555 : const auto rdata = event->body.tsx_state.src.rdata;
1294 555 : if (!rdata) {
1295 0 : JAMI_ERROR("[INVITE:{:p}] SIP RX request without rx data", fmt::ptr(inv));
1296 0 : return;
1297 : }
1298 :
1299 555 : const auto msg = rdata->msg_info.msg;
1300 555 : if (msg->type != PJSIP_REQUEST_MSG) {
1301 0 : JAMI_ERROR("[INVITE:{:p}] SIP RX request without msg", fmt::ptr(inv));
1302 0 : return;
1303 : }
1304 :
1305 : // Using method name to dispatch
1306 555 : auto methodName = sip_utils::as_view(msg->line.req.method.name);
1307 2220 : JAMI_LOG("[INVITE:{:p}] RX SIP method {:d} ({:s})", fmt::ptr(inv), (int) msg->line.req.method.id, methodName);
1308 :
1309 : #ifdef DEBUG_SIP_REQUEST_MSG
1310 : char msgbuf[1000];
1311 : auto msgsize = pjsip_msg_print(msg, msgbuf, sizeof msgbuf);
1312 : if (msgsize > 0)
1313 : JAMI_LOG("{:s}", std::string_view(msgbuf, msgsize));
1314 : #endif // DEBUG_SIP_REQUEST_MSG
1315 :
1316 555 : if (methodName == sip_utils::SIP_METHODS::REFER)
1317 2 : onRequestRefer(inv, rdata, msg, *call);
1318 553 : else if (methodName == sip_utils::SIP_METHODS::INFO)
1319 206 : onRequestInfo(inv, rdata, msg, *call);
1320 347 : else if (methodName == sip_utils::SIP_METHODS::NOTIFY)
1321 0 : onRequestNotify(inv, rdata, msg, *call);
1322 347 : else if (methodName == sip_utils::SIP_METHODS::OPTIONS)
1323 0 : handleIncomingOptions(rdata);
1324 347 : else if (methodName == sip_utils::SIP_METHODS::MESSAGE) {
1325 228 : if (msg->body)
1326 456 : runOnMainThread([call, m = im::parseSipMessage(msg)]() mutable { call->onTextMessage(std::move(m)); });
1327 : }
1328 4193 : }
1329 :
1330 : #ifdef DEBUG_SIP_REQUEST_MSG
1331 : static void
1332 : processInviteResponseHelper(pjsip_inv_session* inv, pjsip_event* event)
1333 : {
1334 : if (event->body.tsx_state.type != PJSIP_EVENT_RX_MSG)
1335 : return;
1336 :
1337 : const auto rdata = event->body.tsx_state.src.rdata;
1338 : if (rdata == nullptr or rdata->msg_info.msg == nullptr)
1339 : return;
1340 :
1341 : const auto msg = rdata->msg_info.msg;
1342 : if (msg->type != PJSIP_RESPONSE_MSG)
1343 : return;
1344 :
1345 : // Only handle the following responses
1346 : switch (msg->line.status.code) {
1347 : case PJSIP_SC_TRYING:
1348 : case PJSIP_SC_RINGING:
1349 : case PJSIP_SC_OK:
1350 : break;
1351 : default:
1352 : return;
1353 : }
1354 :
1355 : JAMI_LOG("[INVITE:{:p}] SIP RX response: reason {:s}, status code {:d} {:s}",
1356 : fmt::ptr(inv),
1357 : sip_utils::as_view(msg->line.status.reason),
1358 : msg->line.status.code,
1359 : sip_utils::as_view(*pjsip_get_status_text(msg->line.status.code)));
1360 :
1361 : sip_utils::logMessageHeaders(&msg->hdr);
1362 : }
1363 : #endif
1364 :
1365 : int
1366 591 : SIPVoIPLink::getModId()
1367 : {
1368 591 : return mod_ua_.id;
1369 : }
1370 :
1371 : void
1372 0 : SIPVoIPLink::createSDPOffer(pjsip_inv_session* inv)
1373 : {
1374 0 : if (inv == nullptr) {
1375 0 : throw VoipLinkException("Invite session is unable to be null");
1376 : }
1377 0 : sdp_create_offer_cb(inv, nullptr);
1378 0 : }
1379 :
1380 : // Thread-safe DNS resolver callback mapping
1381 : class SafeResolveCallbackMap
1382 : {
1383 : public:
1384 : using ResolveCallback = std::function<void(pj_status_t, const pjsip_server_addresses*)>;
1385 :
1386 5 : void registerCallback(uintptr_t key, ResolveCallback&& cb)
1387 : {
1388 5 : std::lock_guard lk(mutex_);
1389 5 : cbMap_.emplace(key, std::move(cb));
1390 5 : }
1391 :
1392 5 : void process(uintptr_t key, pj_status_t status, const pjsip_server_addresses* addr)
1393 : {
1394 5 : std::lock_guard lk(mutex_);
1395 5 : auto it = cbMap_.find(key);
1396 5 : if (it != cbMap_.end()) {
1397 5 : it->second(status, addr);
1398 5 : cbMap_.erase(it);
1399 : }
1400 5 : }
1401 :
1402 : private:
1403 : std::mutex mutex_;
1404 : std::map<uintptr_t, ResolveCallback> cbMap_;
1405 : };
1406 :
1407 : static SafeResolveCallbackMap&
1408 10 : getResolveCallbackMap()
1409 : {
1410 10 : static SafeResolveCallbackMap map;
1411 10 : return map;
1412 : }
1413 :
1414 : static void
1415 5 : resolver_callback(pj_status_t status, void* token, const struct pjsip_server_addresses* addr)
1416 : {
1417 5 : getResolveCallbackMap().process((uintptr_t) token, status, addr);
1418 5 : }
1419 :
1420 : void
1421 5 : SIPVoIPLink::resolveSrvName(const std::string& name, pjsip_transport_type_e type, SrvResolveCallback&& cb)
1422 : {
1423 : // PJSIP limits hostname to be longer than PJ_MAX_HOSTNAME.
1424 : // But, resolver prefix the given name by a string like "_sip._udp."
1425 : // causing a check against PJ_MAX_HOSTNAME to be useless.
1426 : // It's not easy to pre-determinate as it's implementation dependent.
1427 : // So we just choose a security marge enough for most cases, preventing a crash later
1428 : // in the call of pjsip_endpt_resolve().
1429 5 : if (name.length() > (PJ_MAX_HOSTNAME - 12)) {
1430 0 : JAMI_ERR("Hostname is too long");
1431 0 : cb({});
1432 0 : return;
1433 : }
1434 :
1435 : // extract port if name is in form "server:port"
1436 : int port;
1437 : pj_ssize_t name_size;
1438 5 : const auto n = name.rfind(':');
1439 5 : if (n != std::string::npos) {
1440 0 : port = std::atoi(name.c_str() + n + 1);
1441 0 : name_size = n;
1442 : } else {
1443 5 : port = 0;
1444 5 : name_size = name.size();
1445 : }
1446 5 : JAMI_DBG("Attempt to resolve '%s' (port: %u)", name.c_str(), port);
1447 :
1448 5 : pjsip_host_info host_info {
1449 : /*.flag = */ 0,
1450 : /*.type = */ type,
1451 5 : /*.addr = */ {{(char*) name.c_str(), name_size}, port},
1452 5 : };
1453 :
1454 5 : const auto token = std::hash<std::string>()(name + std::to_string(type));
1455 5 : getResolveCallbackMap()
1456 5 : .registerCallback(token, [=, cb = std::move(cb)](pj_status_t s, const pjsip_server_addresses* r) {
1457 : try {
1458 5 : if (s != PJ_SUCCESS || !r) {
1459 0 : JAMI_WARN("Unable to resolve \"%s\" using pjsip_endpt_resolve, attempting getaddrinfo.",
1460 : name.c_str());
1461 0 : dht::ThreadPool::io().run([=, cb = std::move(cb)]() {
1462 0 : auto ips = dhtnet::ip_utils::getAddrList(name.c_str());
1463 0 : runOnMainThread(std::bind(cb, std::move(ips)));
1464 0 : });
1465 0 : } else {
1466 5 : std::vector<dhtnet::IpAddr> ips;
1467 5 : ips.reserve(r->count);
1468 10 : for (unsigned i = 0; i < r->count; i++)
1469 5 : ips.push_back(r->entry[i].addr);
1470 5 : cb(ips);
1471 5 : }
1472 0 : } catch (const std::exception& e) {
1473 0 : JAMI_ERR("Error resolving address: %s", e.what());
1474 0 : cb({});
1475 0 : }
1476 5 : });
1477 :
1478 5 : pjsip_endpt_resolve(endpt_, pool_.get(), &host_info, (void*) token, resolver_callback);
1479 : }
1480 :
1481 : #define RETURN_IF_NULL(A, ...) \
1482 : if ((A) == NULL) { \
1483 : JAMI_WARN(__VA_ARGS__); \
1484 : return; \
1485 : }
1486 :
1487 : #define RETURN_FALSE_IF_NULL(A, ...) \
1488 : if ((A) == NULL) { \
1489 : JAMI_WARN(__VA_ARGS__); \
1490 : return false; \
1491 : }
1492 :
1493 : void
1494 27 : SIPVoIPLink::findLocalAddressFromTransport(pjsip_transport* transport,
1495 : pjsip_transport_type_e transportType,
1496 : const std::string& host,
1497 : std::string& addr,
1498 : pj_uint16_t& port) const
1499 : {
1500 : // Initialize the SIP port with the default SIP port
1501 27 : port = pjsip_transport_get_default_port_for_type(transportType);
1502 :
1503 : // Initialize the SIP address with the hostname
1504 27 : addr = sip_utils::as_view(*pj_gethostname());
1505 :
1506 : // Update address and port with active transport
1507 27 : RETURN_IF_NULL(transport, "Transport is NULL in findLocalAddress, using local address %s :%d", addr.c_str(), port);
1508 :
1509 : // get the transport manager associated with the SIP enpoint
1510 27 : auto tpmgr = pjsip_endpt_get_tpmgr(endpt_);
1511 27 : RETURN_IF_NULL(tpmgr,
1512 : "Transport manager is NULL in findLocalAddress, using local address %s :%d",
1513 : addr.c_str(),
1514 : port);
1515 :
1516 27 : const pj_str_t pjstring(CONST_PJ_STR(host));
1517 :
1518 27 : auto tp_sel = getTransportSelector(transport);
1519 27 : pjsip_tpmgr_fla2_param param = {transportType, &tp_sel, pjstring, PJ_FALSE, {nullptr, 0}, 0, nullptr};
1520 27 : if (pjsip_tpmgr_find_local_addr2(tpmgr, pool_.get(), ¶m) != PJ_SUCCESS) {
1521 0 : JAMI_WARN("Unable to retrieve local address and port from transport, using %s :%d", addr.c_str(), port);
1522 0 : return;
1523 : }
1524 :
1525 : // Update local address based on the transport type
1526 27 : addr = sip_utils::as_view(param.ret_addr);
1527 :
1528 : // Determine the local port based on transport information
1529 27 : port = param.ret_port;
1530 : }
1531 :
1532 : bool
1533 0 : SIPVoIPLink::findLocalAddressFromSTUN(
1534 : pjsip_transport* transport, pj_str_t* stunServerName, int stunPort, std::string& addr, pj_uint16_t& port) const
1535 : {
1536 : // WARN: this code use pjstun_get_mapped_addr2 that works
1537 : // in IPv4 only.
1538 : // WARN: this function is blocking (network request).
1539 :
1540 : // Initialize the sip port with the default SIP port
1541 0 : port = sip_utils::DEFAULT_SIP_PORT;
1542 :
1543 : // Get Local IP address
1544 0 : auto localIp = dhtnet::ip_utils::getLocalAddr(pj_AF_INET());
1545 0 : if (not localIp) {
1546 0 : JAMI_WARN("Failed to find local IP");
1547 0 : return false;
1548 : }
1549 :
1550 0 : addr = localIp.toString();
1551 :
1552 : // Update address and port with active transport
1553 0 : RETURN_FALSE_IF_NULL(transport,
1554 : "Transport is NULL in findLocalAddress, using local address %s:%u",
1555 : addr.c_str(),
1556 : port);
1557 :
1558 0 : JAMI_DBG("STUN mapping of '%s:%u'", addr.c_str(), port);
1559 :
1560 : pj_sockaddr_in mapped_addr;
1561 0 : pj_sock_t sipSocket = pjsip_udp_transport_get_socket(transport);
1562 0 : const pjstun_setting stunOpt = {PJ_TRUE, localIp.getFamily(), *stunServerName, stunPort, *stunServerName, stunPort};
1563 0 : pj_status_t stunStatus = pjstun_get_mapped_addr2(&cp_.factory, &stunOpt, 1, &sipSocket, &mapped_addr);
1564 :
1565 0 : switch (stunStatus) {
1566 0 : case PJLIB_UTIL_ESTUNNOTRESPOND:
1567 0 : JAMI_ERROR("No response from STUN server {:s}", sip_utils::as_view(*stunServerName));
1568 0 : return false;
1569 :
1570 0 : case PJLIB_UTIL_ESTUNSYMMETRIC:
1571 0 : JAMI_ERR("Different mapped addresses are returned by servers.");
1572 0 : return false;
1573 :
1574 0 : case PJ_SUCCESS:
1575 0 : port = pj_sockaddr_in_get_port(&mapped_addr);
1576 0 : addr = dhtnet::IpAddr((const sockaddr_in&) mapped_addr).toString(true);
1577 0 : JAMI_DEBUG("STUN server {:s} replied '{}'", sip_utils::as_view(*stunServerName), addr);
1578 0 : return true;
1579 :
1580 0 : default: // use given address, silent any not handled error
1581 0 : JAMI_WARNING("Error from STUN server {:s}, using source address", sip_utils::as_view(*stunServerName));
1582 0 : return false;
1583 : }
1584 : }
1585 : #undef RETURN_IF_NULL
1586 : #undef RETURN_FALSE_IF_NULL
1587 : } // namespace jami
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