2 * C Implementation: tunnel
7 * Author: Simon Morlat <simon.morlat@linphone.org>, (C) 2009
9 * Copyright (C) 2010 Belledonne Comunications, Grenoble, France
14 #include "TunnelManager.hh"
16 #include "ortp/rtpsession.h"
17 #include "linphonecore.h"
18 #include "linphonecore_utils.h"
19 #include "eXosip2/eXosip_transport_hook.h"
20 #include "tunnel/udp_mirror.hh"
23 #include <android/log.h>
36 using namespace belledonnecomm;
38 Mutex TunnelManager::sMutex;
40 int TunnelManager::eXosipSendto(int fd,const void *buf, size_t len, int flags, const struct sockaddr *to, socklen_t tolen,void* userdata){
41 TunnelManager* lTunnelMgr=(TunnelManager*)userdata;
44 if (lTunnelMgr->mSipSocket==NULL){
46 return len;//let ignore the error
48 err=lTunnelMgr->mSipSocket->sendto(buf,len,to,tolen);
53 int TunnelManager::eXosipRecvfrom(int fd, void *buf, size_t len, int flags, struct sockaddr *from, socklen_t *fromlen,void* userdata){
54 TunnelManager* lTunnelMgr=(TunnelManager*)userdata;
57 if (lTunnelMgr->mSipSocket==NULL){
59 return 0;//let ignore the error
61 err=lTunnelMgr->mSipSocket->recvfrom(buf,len,from,*fromlen);
66 int TunnelManager::eXosipSelect(int max_fds, fd_set *s1, fd_set *s2, fd_set *s3, struct timeval *tv,void* userdata){
67 struct timeval begin,cur;
68 TunnelManager* lTunnelMgr=(TunnelManager*)userdata;
69 if (tv!=0 && tv->tv_sec){
70 /*this is the select from udp.c, the one that is interesting to us*/
71 NativeSocket udp_fd=(NativeSocket)eXosip_get_udp_socket();
72 NativeSocket controlfd=(NativeSocket)eXosip_get_control_fd();
75 gettimeofday(&begin,NULL);
82 if (lTunnelMgr->mSipSocket!=NULL){
83 if (lTunnelMgr->mSipSocket->hasData()) {
85 /* we make exosip believe that it has udp data to read*/
91 gettimeofday(&cur,NULL);
92 if (cur.tv_sec-begin.tv_sec>tv->tv_sec) {
99 if (select(max_fds,s1,s2,s3,&abit)==1) {
105 /*select called from other places, only the control fd is present */
106 return select(max_fds,s1,s2,s3,tv);
111 void TunnelManager::addServer(const char *ip, int port,unsigned int udpMirrorPort,unsigned int delay) {
113 mUdpMirrorClients.push_back(UdpMirrorClient(ServerAddr(ip,udpMirrorPort),delay));
116 void TunnelManager::addServer(const char *ip, int port) {
117 mServerAddrs.push_back(ServerAddr(ip,port));
118 if (mTunnelClient) mTunnelClient->addServer(ip,port);
121 void TunnelManager::cleanServers() {
122 mServerAddrs.clear();
124 UdpMirrorClientList::iterator it;
125 mAutoDetectStarted=false;
126 for (it = mUdpMirrorClients.begin(); it != mUdpMirrorClients.end();) {
127 UdpMirrorClient& s=*it++;
130 mUdpMirrorClients.clear();
131 if (mTunnelClient) mTunnelClient->cleanServers();
134 void TunnelManager::reconnect(){
136 mTunnelClient->reconnect();
139 void TunnelManager::setCallback(StateCallback cb, void *userdata) {
141 mCallbackData=userdata;
144 static void sCloseRtpTransport(RtpTransport *t, void *userData){
145 TunnelSocket *s=(TunnelSocket*)userData;
146 TunnelManager *manager=(TunnelManager*)s->getUserPointer();
147 manager->closeRtpTransport(t, s);
149 void TunnelManager::closeRtpTransport(RtpTransport *t, TunnelSocket *s){
150 mTunnelClient->closeSocket(s);
154 static RtpTransport *sCreateRtpTransport(void* userData, int port){
155 return ((TunnelManager *) userData)->createRtpTransport(port);
158 RtpTransport *TunnelManager::createRtpTransport(int port){
159 TunnelSocket *socket=mTunnelClient->createSocket(port);
160 socket->setUserPointer(this);
161 RtpTransport *t=ms_new0(RtpTransport,1);
163 t->t_recvfrom=customRecvfrom;
164 t->t_sendto=customSendto;
165 t->t_close=sCloseRtpTransport;
170 void TunnelManager::start() {
171 if (!mTunnelClient) {
172 mTunnelClient = new TunnelClient();
173 mTunnelClient->setCallback((StateCallback)tunnelCallback,this);
174 std::list<ServerAddr>::iterator it;
175 for(it=mServerAddrs.begin();it!=mServerAddrs.end();++it){
176 const ServerAddr &addr=*it;
177 mTunnelClient->addServer(addr.mAddr.c_str(), addr.mPort);
179 if(!mHttpUserName.empty()) {
180 mTunnelClient->setHttpProxyAuthInfo(mHttpUserName.c_str(), mHttpPasswd.c_str());
183 mTunnelClient->start();
185 if (mSipSocket == NULL) mSipSocket =mTunnelClient->createSocket(5060);
188 bool TunnelManager::isStarted() {
189 return mTunnelClient != 0 && mTunnelClient->isStarted();
192 bool TunnelManager::isReady() const {
193 return mTunnelClient && mTunnelClient->isReady();
196 int TunnelManager::customSendto(struct _RtpTransport *t, mblk_t *msg , int flags, const struct sockaddr *to, socklen_t tolen){
200 ((TunnelSocket*)t->data)->sendto(msg->b_rptr,size,to,tolen);
204 int TunnelManager::customRecvfrom(struct _RtpTransport *t, mblk_t *msg, int flags, struct sockaddr *from, socklen_t *fromlen){
205 int err=((TunnelSocket*)t->data)->recvfrom(msg->b_wptr,msg->b_datap->db_lim-msg->b_datap->db_base,from,*fromlen);
206 if (err>0) return err;
211 TunnelManager::TunnelManager(LinphoneCore* lc) :TunnelClientController()
217 ,mAutoDetectStarted(false) {
219 mExosipTransport.data=this;
220 mExosipTransport.recvfrom=eXosipRecvfrom;
221 mExosipTransport.sendto=eXosipSendto;
222 mExosipTransport.select=eXosipSelect;
224 linphone_core_add_iterate_hook(mCore,(LinphoneCoreIterateHook)sOnIterate,this);
225 mTransportFactories.audio_rtcp_func=sCreateRtpTransport;
226 mTransportFactories.audio_rtcp_func_data=this;
227 mTransportFactories.audio_rtp_func=sCreateRtpTransport;
228 mTransportFactories.audio_rtp_func_data=this;
229 mTransportFactories.video_rtcp_func=sCreateRtpTransport;
230 mTransportFactories.video_rtcp_func_data=this;
231 mTransportFactories.video_rtp_func=sCreateRtpTransport;
232 mTransportFactories.video_rtp_func_data=this;
235 TunnelManager::~TunnelManager(){
239 void TunnelManager::stopClient(){
240 eXosip_transport_hook_register(NULL);
241 if (mSipSocket != NULL){
243 mTunnelClient->closeSocket(mSipSocket);
248 delete mTunnelClient;
253 void TunnelManager::processTunnelEvent(){
254 LinphoneProxyConfig* lProxy;
255 linphone_core_get_default_proxy(mCore, &lProxy);
257 if (mEnabled && mTunnelClient->isReady()){
258 ms_message("Tunnel is up, registering now");
259 linphone_core_set_rtp_transport_factories(mCore,&mTransportFactories);
260 eXosip_transport_hook_register(&mExosipTransport);
261 //force transport to udp
262 LCSipTransports lTransport;
264 lTransport.udp_port=15060;
265 lTransport.tcp_port=0;
266 lTransport.tls_port=0;
267 lTransport.dtls_port=0;
269 linphone_core_set_sip_transports(mCore, &lTransport);
272 linphone_proxy_config_done(lProxy);
274 }else if (mEnabled && !mTunnelClient->isReady()){
275 /* we got disconnected from the tunnel */
276 if (lProxy && linphone_proxy_config_is_registered(lProxy)) {
277 /*forces de-registration so that we register again when the tunnel is up*/
278 linphone_proxy_config_edit(lProxy);
279 linphone_core_iterate(mCore);
284 void TunnelManager::enable(bool isEnable) {
285 ms_message("Turning tunnel [%s]",(isEnable?"on":"off"));
286 if (isEnable && !mEnabled){
289 linphone_core_get_sip_transports(mCore, &mRegularTransport);
291 LinphoneProxyConfig* lProxy;
292 linphone_core_get_default_proxy(mCore, &lProxy);
294 linphone_proxy_config_edit(lProxy);
295 //make sure unregister is sent
296 linphone_core_iterate(mCore);
300 }else if (!isEnable && mEnabled){
304 LinphoneProxyConfig* lProxy;
305 linphone_core_get_default_proxy(mCore, &lProxy);
307 linphone_proxy_config_edit(lProxy);
308 //make sure unregister is sent
309 linphone_core_iterate(mCore);
312 //make sure unregister is sent
313 linphone_core_iterate(mCore);
315 linphone_core_set_rtp_transport_factories(mCore,NULL);
317 eXosip_transport_hook_register(NULL);
319 linphone_core_set_sip_transports(mCore, &mRegularTransport);
322 linphone_proxy_config_done(lProxy);
328 void TunnelManager::tunnelCallback(bool connected, TunnelManager *zis){
329 zis->mStateChanged=true;
332 /*invoked from linphone_core_iterate() */
333 void TunnelManager::sOnIterate(TunnelManager *zis){
334 if (zis->mStateChanged){
335 zis->mStateChanged=false;
336 zis->processTunnelEvent();
341 static void linphone_android_log_handler(int lev, const char *fmt, va_list args){
344 case TUNNEL_DEBUG: prio = ANDROID_LOG_DEBUG; break;
345 case TUNNEL_INFO: prio = ANDROID_LOG_INFO; break;
346 case TUNNEL_NOTICE: prio = ANDROID_LOG_INFO; break;
347 case TUNNEL_WARN: prio = ANDROID_LOG_WARN; break;
348 case TUNNEL_ERROR: prio = ANDROID_LOG_ERROR; break;
349 default: prio = ANDROID_LOG_DEFAULT; break;
351 __android_log_vprint(prio, LOG_DOMAIN, fmt, args);
355 void TunnelManager::enableLogs(bool value) {
356 enableLogs(value,NULL);
359 void TunnelManager::enableLogs(bool isEnabled,LogHandler logHandler) {
360 if (logHandler != NULL) SetLogHandler(logHandler);
362 else SetLogHandler(linphone_android_log_handler);
364 else SetLogHandler(default_log_handler);
368 SetLogLevel(TUNNEL_ERROR|TUNNEL_WARN|TUNNEL_INFO);
370 SetLogLevel(TUNNEL_ERROR|TUNNEL_WARN);
375 bool TunnelManager::isEnabled() {
378 void TunnelManager::UdpMirrorClientListener(bool isUdpAvailable, void* data) {
379 TunnelManager* thiz = (TunnelManager*)data;
380 if (isUdpAvailable) {
381 LOGI("Tunnel is not required, disabling");
383 thiz->mAutoDetectStarted = false;
385 if (++thiz->mCurrentUdpMirrorClient !=thiz->mUdpMirrorClients.end()) {
386 //1 enable tunnable but also try backup server
387 LOGI("Tunnel is required, enabling; Trying backup udp mirror");
389 UdpMirrorClient &lUdpMirrorClient=*thiz->mCurrentUdpMirrorClient;
390 lUdpMirrorClient.start(TunnelManager::UdpMirrorClientListener,(void*)thiz);
392 LOGI("Tunnel is required, enabling; no backup udp mirror available");
393 thiz->mAutoDetectStarted = false;
400 void TunnelManager::autoDetect() {
401 // first check if udp mirrors was provisionned
402 if (mUdpMirrorClients.empty()) {
403 LOGE("No UDP mirror server configured aborting auto detection");
406 if (mAutoDetectStarted) {
407 LOGE("auto detection already in progress, restarting");
408 (*mCurrentUdpMirrorClient).stop();
410 mAutoDetectStarted=true;
411 mCurrentUdpMirrorClient =mUdpMirrorClients.begin();
412 UdpMirrorClient &lUdpMirrorClient=*mCurrentUdpMirrorClient;
413 lUdpMirrorClient.start(TunnelManager::UdpMirrorClientListener,(void*)this);
417 void TunnelManager::setHttpProxyAuthInfo(const char* username,const char* passwd) {
418 mHttpUserName=username?username:"";
419 mHttpPasswd=passwd?passwd:"";
420 if (mTunnelClient) mTunnelClient->setHttpProxyAuthInfo(username,passwd);
423 LinphoneCore *TunnelManager::getLinphoneCore(){