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*/
73 int udp_fd=eXosip_get_udp_socket();
77 Find the udp fd and the control fd
79 for(i=0;i<max_fds;++i){
80 if (FD_ISSET(i,s1) && i!=udp_fd){
86 ms_error("Could not find control fd !");
90 gettimeofday(&begin,NULL);
97 if (lTunnelMgr->mSipSocket!=NULL){
98 if (lTunnelMgr->mSipSocket->hasData()) {
100 /* we make exosip believe that it has udp data to read*/
106 gettimeofday(&cur,NULL);
107 if (cur.tv_sec-begin.tv_sec>tv->tv_sec) {
108 FD_SET(controlfd,s1);
113 FD_SET(controlfd,s1);
114 if (select(max_fds,s1,s2,s3,&abit)==1) {
120 /*select called from other places, only the control fd is present */
121 return select(max_fds,s1,s2,s3,tv);
126 void TunnelManager::addServer(const char *ip, int port,unsigned int udpMirrorPort,unsigned int delay) {
128 mUdpMirrorClients.push_back(UdpMirrorClient(ServerAddr(ip,udpMirrorPort),delay));
131 void TunnelManager::addServer(const char *ip, int port) {
132 mServerAddrs.push_back(ServerAddr(ip,port));
133 if (mTunnelClient) mTunnelClient->addServer(ip,port);
136 void TunnelManager::cleanServers() {
137 mServerAddrs.clear();
139 UdpMirrorClientList::iterator it;
140 mAutoDetectStarted=false;
141 for (it = mUdpMirrorClients.begin(); it != mUdpMirrorClients.end();) {
142 UdpMirrorClient& s=*it++;
145 mUdpMirrorClients.clear();
146 if (mTunnelClient) mTunnelClient->cleanServers();
149 void TunnelManager::reconnect(){
151 mTunnelClient->reconnect();
154 void TunnelManager::setCallback(StateCallback cb, void *userdata) {
156 mCallbackData=userdata;
159 static void sCloseRtpTransport(void *userData, RtpTransport *t){
160 ((TunnelManager::TunnelManager *) userData)->closeRtpTransport(t);
162 void TunnelManager::closeRtpTransport(RtpTransport *t){
163 TunnelSocket *socket=(TunnelSocket *) t->data;
164 mTransports.remove(t);
165 mTunnelClient->closeSocket(socket);
169 static RtpTransport *sCreateRtpTransport(void* userData, int port){
170 return ((TunnelManager::TunnelManager *) userData)->createRtpTransport(port);
173 RtpTransport *TunnelManager::createRtpTransport(int port){
174 RtpTransport *t=ms_new0(RtpTransport,1);
175 t->data=mTunnelClient->createSocket(port);
177 t->t_recvfrom=customRecvfrom;
178 t->t_sendto=customSendto;
179 t->close_fn=sCloseRtpTransport;
181 mTransports.push_back(t);
185 void TunnelManager::start() {
186 if (!mTunnelClient) {
187 mTunnelClient = new TunnelClient();
188 mTunnelClient->setCallback((StateCallback)tunnelCallback,this);
189 std::list<ServerAddr>::iterator it;
190 for(it=mServerAddrs.begin();it!=mServerAddrs.end();++it){
191 const ServerAddr &addr=*it;
192 mTunnelClient->addServer(addr.mAddr.c_str(), addr.mPort);
195 mTunnelClient->start();
197 if (mSipSocket == NULL) mSipSocket =mTunnelClient->createSocket(5060);
200 bool TunnelManager::isStarted() {
201 return mTunnelClient != 0 && mTunnelClient->isStarted();
204 bool TunnelManager::isReady() const {
205 return mTunnelClient && mTunnelClient->isReady();
208 int TunnelManager::customSendto(struct _RtpTransport *t, mblk_t *msg , int flags, const struct sockaddr *to, socklen_t tolen){
212 ((TunnelSocket*)t->data)->sendto(msg->b_rptr,size,to,tolen);
216 int TunnelManager::customRecvfrom(struct _RtpTransport *t, mblk_t *msg, int flags, struct sockaddr *from, socklen_t *fromlen){
217 int err=((TunnelSocket*)t->data)->recvfrom(msg->b_wptr,msg->b_datap->db_lim-msg->b_datap->db_base,from,*fromlen);
218 if (err>0) return err;
223 TunnelManager::TunnelManager(LinphoneCore* lc) :TunnelClientController()
229 ,mAutoDetectStarted(false) {
231 mExosipTransport.data=this;
232 mExosipTransport.recvfrom=eXosipRecvfrom;
233 mExosipTransport.sendto=eXosipSendto;
234 mExosipTransport.select=eXosipSelect;
236 linphone_core_add_iterate_hook(mCore,(LinphoneCoreIterateHook)sOnIterate,this);
237 mTransportFactories.audio_rtcp_func=sCreateRtpTransport;
238 mTransportFactories.audio_rtcp_func_data=this;
239 mTransportFactories.audio_rtp_func=sCreateRtpTransport;
240 mTransportFactories.audio_rtp_func_data=this;
241 mTransportFactories.video_rtcp_func=sCreateRtpTransport;
242 mTransportFactories.video_rtcp_func_data=this;
243 mTransportFactories.video_rtp_func=sCreateRtpTransport;
244 mTransportFactories.video_rtp_func_data=this;
247 TunnelManager::~TunnelManager(){
251 void TunnelManager::stopClient(){
252 eXosip_transport_hook_register(NULL);
253 if (mSipSocket != NULL){
255 mTunnelClient->closeSocket(mSipSocket);
260 delete mTunnelClient;
265 void TunnelManager::processTunnelEvent(){
266 LinphoneProxyConfig* lProxy;
267 linphone_core_get_default_proxy(mCore, &lProxy);
269 if (mEnabled && mTunnelClient->isReady()){
270 ms_message("Tunnel is up, registering now");
271 linphone_core_set_rtp_transport_factories(mCore,&mTransportFactories);
272 eXosip_transport_hook_register(&mExosipTransport);
273 //force transport to udp
274 LCSipTransports lTransport;
276 lTransport.udp_port=15060;
277 lTransport.tcp_port=0;
278 lTransport.tls_port=0;
279 lTransport.dtls_port=0;
281 linphone_core_set_sip_transports(mCore, &lTransport);
284 linphone_proxy_config_done(lProxy);
286 }else if (mEnabled && !mTunnelClient->isReady()){
287 /* we got disconnected from the tunnel */
288 if (lProxy && linphone_proxy_config_is_registered(lProxy)) {
289 /*forces de-registration so that we register again when the tunnel is up*/
290 linphone_proxy_config_edit(lProxy);
291 linphone_core_iterate(mCore);
296 void TunnelManager::enable(bool isEnable) {
297 ms_message("Turning tunnel [%s]",(isEnable?"on":"off"));
298 if (isEnable && !mEnabled){
301 linphone_core_get_sip_transports(mCore, &mRegularTransport);
303 LinphoneProxyConfig* lProxy;
304 linphone_core_get_default_proxy(mCore, &lProxy);
306 linphone_proxy_config_edit(lProxy);
307 //make sure unregister is sent
308 linphone_core_iterate(mCore);
312 }else if (!isEnable && mEnabled){
316 LinphoneProxyConfig* lProxy;
317 linphone_core_get_default_proxy(mCore, &lProxy);
319 linphone_proxy_config_edit(lProxy);
320 //make sure unregister is sent
321 linphone_core_iterate(mCore);
324 //make sure unregister is sent
325 linphone_core_iterate(mCore);
327 linphone_core_set_rtp_transport_factories(mCore,NULL);
329 eXosip_transport_hook_register(NULL);
331 linphone_core_set_sip_transports(mCore, &mRegularTransport);
334 linphone_proxy_config_done(lProxy);
340 void TunnelManager::tunnelCallback(bool connected, TunnelManager *zis){
341 zis->mStateChanged=true;
344 /*invoked from linphone_core_iterate() */
345 void TunnelManager::sOnIterate(TunnelManager *zis){
346 if (zis->mStateChanged){
347 zis->mStateChanged=false;
348 zis->processTunnelEvent();
353 static void linphone_android_log_handler(int lev, const char *fmt, va_list args){
356 case TUNNEL_DEBUG: prio = ANDROID_LOG_DEBUG; break;
357 case TUNNEL_INFO: prio = ANDROID_LOG_INFO; break;
358 case TUNNEL_NOTICE: prio = ANDROID_LOG_INFO; break;
359 case TUNNEL_WARN: prio = ANDROID_LOG_WARN; break;
360 case TUNNEL_ERROR: prio = ANDROID_LOG_ERROR; break;
361 default: prio = ANDROID_LOG_DEFAULT; break;
363 __android_log_vprint(prio, LOG_DOMAIN, fmt, args);
367 void TunnelManager::enableLogs(bool value) {
368 enableLogs(value,NULL);
371 void TunnelManager::enableLogs(bool isEnabled,LogHandler logHandler) {
372 if (logHandler != NULL) SetLogHandler(logHandler);
374 else SetLogHandler(linphone_android_log_handler);
376 else SetLogHandler(default_log_handler);
380 SetLogLevel(TUNNEL_ERROR|TUNNEL_WARN|TUNNEL_INFO);
382 SetLogLevel(TUNNEL_ERROR|TUNNEL_WARN);
387 bool TunnelManager::isEnabled() {
390 void TunnelManager::UdpMirrorClientListener(bool isUdpAvailable, void* data) {
391 TunnelManager* thiz = (TunnelManager*)data;
392 if (isUdpAvailable) {
393 LOGI("Tunnel is not required, disabling");
395 thiz->mAutoDetectStarted = false;
397 if (++thiz->mCurrentUdpMirrorClient !=thiz->mUdpMirrorClients.end()) {
398 //1 enable tunnable but also try backup server
399 LOGI("Tunnel is required, enabling; Trying backup udp mirror");
401 UdpMirrorClient &lUdpMirrorClient=*thiz->mCurrentUdpMirrorClient;
402 lUdpMirrorClient.start(TunnelManager::UdpMirrorClientListener,(void*)thiz);
404 LOGI("Tunnel is required, enabling; no backup udp mirror available");
405 thiz->mAutoDetectStarted = false;
412 void TunnelManager::autoDetect() {
413 // first check if udp mirrors was provisionned
414 if (mUdpMirrorClients.empty()) {
415 LOGE("No UDP mirror server configured aborting auto detection");
418 if (mAutoDetectStarted) {
419 LOGE("auto detection already in progress, restarting");
420 (*mCurrentUdpMirrorClient).stop();
422 mAutoDetectStarted=true;
423 mCurrentUdpMirrorClient =mUdpMirrorClients.begin();
424 UdpMirrorClient &lUdpMirrorClient=*mCurrentUdpMirrorClient;
425 lUdpMirrorClient.start(TunnelManager::UdpMirrorClientListener,(void*)this);
429 void TunnelManager::setHttpProxyAuthInfo(const char* username,const char* passwd) {
430 mTunnelClient->setHttpProxyAuthInfo(username,passwd);
433 LinphoneCore *TunnelManager::getLinphoneCore(){