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>
27 using namespace belledonnecomm;
28 using namespace ::std;
30 Mutex TunnelManager::sMutex;
32 int TunnelManager::eXosipSendto(int fd,const void *buf, size_t len, int flags, const struct sockaddr *to, socklen_t tolen,void* userdata){
33 TunnelManager* lTunnelMgr=(TunnelManager*)userdata;
36 if (lTunnelMgr->mSipSocket==NULL){
38 return len;//let ignore the error
40 err=lTunnelMgr->mSipSocket->sendto(buf,len,to,tolen);
45 int TunnelManager::eXosipRecvfrom(int fd, void *buf, size_t len, int flags, struct sockaddr *from, socklen_t *fromlen,void* userdata){
46 TunnelManager* lTunnelMgr=(TunnelManager*)userdata;
49 if (lTunnelMgr->mSipSocket==NULL){
51 return 0;//let ignore the error
53 err=lTunnelMgr->mSipSocket->recvfrom(buf,len,from,*fromlen);
58 int TunnelManager::eXosipSelect(int max_fds, fd_set *s1, fd_set *s2, fd_set *s3, struct timeval *tv,void* userdata){
59 struct timeval begin,cur;
60 TunnelManager* lTunnelMgr=(TunnelManager*)userdata;
61 if (tv!=0 && tv->tv_sec){
62 /*this is the select from udp.c, the one that is interesting to us*/
63 NativeSocket udp_fd=(NativeSocket)eXosip_get_udp_socket();
64 NativeSocket controlfd=(NativeSocket)eXosip_get_control_fd();
67 gettimeofday(&begin,NULL);
74 if (lTunnelMgr->mSipSocket!=NULL){
75 if (lTunnelMgr->mSipSocket->hasData()) {
77 /* we make exosip believe that it has udp data to read*/
83 gettimeofday(&cur,NULL);
84 if (cur.tv_sec-begin.tv_sec>tv->tv_sec) {
91 if (select(max_fds,s1,s2,s3,&abit)==1) {
97 /*select called from other places, only the control fd is present */
98 return select(max_fds,s1,s2,s3,tv);
103 void TunnelManager::addServer(const char *ip, int port,unsigned int udpMirrorPort,unsigned int delay) {
105 mUdpMirrorClients.push_back(UdpMirrorClient(ServerAddr(ip,udpMirrorPort),delay));
108 void TunnelManager::addServer(const char *ip, int port) {
109 mServerAddrs.push_back(ServerAddr(ip,port));
110 if (mTunnelClient) mTunnelClient->addServer(ip,port);
113 void TunnelManager::cleanServers() {
114 mServerAddrs.clear();
116 UdpMirrorClientList::iterator it;
117 mAutoDetectStarted=false;
118 for (it = mUdpMirrorClients.begin(); it != mUdpMirrorClients.end();) {
119 UdpMirrorClient& s=*it++;
122 mUdpMirrorClients.clear();
123 if (mTunnelClient) mTunnelClient->cleanServers();
126 void TunnelManager::reconnect(){
128 mTunnelClient->reconnect();
131 void TunnelManager::setCallback(StateCallback cb, void *userdata) {
133 mCallbackData=userdata;
136 static void sCloseRtpTransport(RtpTransport *t, void *userData){
137 TunnelSocket *s=(TunnelSocket*)userData;
138 TunnelManager *manager=(TunnelManager*)s->getUserPointer();
139 manager->closeRtpTransport(t, s);
141 void TunnelManager::closeRtpTransport(RtpTransport *t, TunnelSocket *s){
142 mTunnelClient->closeSocket(s);
146 static RtpTransport *sCreateRtpTransport(void* userData, int port){
147 return ((TunnelManager *) userData)->createRtpTransport(port);
150 RtpTransport *TunnelManager::createRtpTransport(int port){
151 TunnelSocket *socket=mTunnelClient->createSocket(port);
152 socket->setUserPointer(this);
153 RtpTransport *t=ms_new0(RtpTransport,1);
155 t->t_recvfrom=customRecvfrom;
156 t->t_sendto=customSendto;
157 t->t_close=sCloseRtpTransport;
162 void TunnelManager::start() {
163 if (!mTunnelClient) {
164 mTunnelClient = new TunnelClient();
165 mTunnelClient->setCallback((StateCallback)tunnelCallback,this);
166 list<ServerAddr>::iterator it;
167 for(it=mServerAddrs.begin();it!=mServerAddrs.end();++it){
168 const ServerAddr &addr=*it;
169 mTunnelClient->addServer(addr.mAddr.c_str(), addr.mPort);
171 mTunnelClient->setHttpProxy(mHttpProxyHost.c_str(), mHttpProxyPort, mHttpUserName.c_str(), mHttpPasswd.c_str());
173 mTunnelClient->start();
175 if (mSipSocket == NULL) mSipSocket =mTunnelClient->createSocket(5060);
178 bool TunnelManager::isStarted() {
179 return mTunnelClient != 0 && mTunnelClient->isStarted();
182 bool TunnelManager::isReady() const {
183 return mTunnelClient && mTunnelClient->isReady();
186 int TunnelManager::customSendto(struct _RtpTransport *t, mblk_t *msg , int flags, const struct sockaddr *to, socklen_t tolen){
190 ((TunnelSocket*)t->data)->sendto(msg->b_rptr,size,to,tolen);
194 int TunnelManager::customRecvfrom(struct _RtpTransport *t, mblk_t *msg, int flags, struct sockaddr *from, socklen_t *fromlen){
195 int err=((TunnelSocket*)t->data)->recvfrom(msg->b_wptr,msg->b_datap->db_lim-msg->b_datap->db_base,from,*fromlen);
196 if (err>0) return err;
201 TunnelManager::TunnelManager(LinphoneCore* lc) :TunnelClientController()
207 ,mAutoDetectStarted(false)
210 mExosipTransport.data=this;
211 mExosipTransport.recvfrom=eXosipRecvfrom;
212 mExosipTransport.sendto=eXosipSendto;
213 mExosipTransport.select=eXosipSelect;
215 linphone_core_add_iterate_hook(mCore,(LinphoneCoreIterateHook)sOnIterate,this);
216 mTransportFactories.audio_rtcp_func=sCreateRtpTransport;
217 mTransportFactories.audio_rtcp_func_data=this;
218 mTransportFactories.audio_rtp_func=sCreateRtpTransport;
219 mTransportFactories.audio_rtp_func_data=this;
220 mTransportFactories.video_rtcp_func=sCreateRtpTransport;
221 mTransportFactories.video_rtcp_func_data=this;
222 mTransportFactories.video_rtp_func=sCreateRtpTransport;
223 mTransportFactories.video_rtp_func_data=this;
226 TunnelManager::~TunnelManager(){
230 void TunnelManager::stopClient(){
231 eXosip_transport_hook_register(NULL);
232 if (mSipSocket != NULL){
234 mTunnelClient->closeSocket(mSipSocket);
239 delete mTunnelClient;
244 void TunnelManager::processTunnelEvent(){
245 LinphoneProxyConfig* lProxy;
246 linphone_core_get_default_proxy(mCore, &lProxy);
248 if (mEnabled && mTunnelClient->isReady()){
249 ms_message("Tunnel is up, registering now");
250 linphone_core_set_rtp_transport_factories(mCore,&mTransportFactories);
251 eXosip_transport_hook_register(&mExosipTransport);
252 //force transport to udp
253 LCSipTransports lTransport;
255 lTransport.udp_port=15060;
256 lTransport.tcp_port=0;
257 lTransport.tls_port=0;
258 lTransport.dtls_port=0;
260 linphone_core_set_sip_transports(mCore, &lTransport);
263 linphone_proxy_config_done(lProxy);
265 }else if (mEnabled && !mTunnelClient->isReady()){
266 /* we got disconnected from the tunnel */
267 if (lProxy && linphone_proxy_config_is_registered(lProxy)) {
268 /*forces de-registration so that we register again when the tunnel is up*/
269 linphone_proxy_config_edit(lProxy);
270 linphone_core_iterate(mCore);
275 void TunnelManager::waitUnRegistration(){
276 LinphoneProxyConfig* lProxy;
277 linphone_core_get_default_proxy(mCore, &lProxy);
278 if (lProxy && linphone_proxy_config_get_state(lProxy)==LinphoneRegistrationOk) {
280 linphone_proxy_config_edit(lProxy);
281 //make sure unregister is sent and authenticated
283 linphone_core_iterate(mCore);
286 ms_message("tunnel: timeout for unregistration expired, giving up");
290 }while(linphone_proxy_config_get_state(lProxy)!=LinphoneRegistrationCleared);
294 void TunnelManager::enable(bool isEnable) {
295 ms_message("Turning tunnel [%s]",(isEnable?"on":"off"));
296 if (isEnable && !mEnabled){
299 linphone_core_get_sip_transports(mCore, &mRegularTransport);
301 waitUnRegistration();
304 }else if (!isEnable && mEnabled){
306 waitUnRegistration();
311 linphone_core_set_rtp_transport_factories(mCore,NULL);
313 eXosip_transport_hook_register(NULL);
315 linphone_core_set_sip_transports(mCore, &mRegularTransport);
317 LinphoneProxyConfig* lProxy;
318 linphone_core_get_default_proxy(mCore, &lProxy);
320 linphone_proxy_config_done(lProxy);
326 void TunnelManager::tunnelCallback(bool connected, TunnelManager *zis){
327 zis->mStateChanged=true;
330 /*invoked from linphone_core_iterate() */
331 void TunnelManager::sOnIterate(TunnelManager *zis){
332 if (zis->mStateChanged){
333 zis->mStateChanged=false;
334 zis->processTunnelEvent();
339 static void linphone_android_log_handler(int lev, const char *fmt, va_list args){
342 case TUNNEL_DEBUG: prio = ANDROID_LOG_DEBUG; break;
343 case TUNNEL_INFO: prio = ANDROID_LOG_INFO; break;
344 case TUNNEL_NOTICE: prio = ANDROID_LOG_INFO; break;
345 case TUNNEL_WARN: prio = ANDROID_LOG_WARN; break;
346 case TUNNEL_ERROR: prio = ANDROID_LOG_ERROR; break;
347 default: prio = ANDROID_LOG_DEFAULT; break;
349 __android_log_vprint(prio, LOG_DOMAIN, fmt, args);
353 void TunnelManager::enableLogs(bool value) {
354 enableLogs(value,NULL);
357 void TunnelManager::enableLogs(bool isEnabled,LogHandler logHandler) {
358 if (logHandler != NULL) SetLogHandler(logHandler);
360 else SetLogHandler(linphone_android_log_handler);
362 else SetLogHandler(default_log_handler);
366 SetLogLevel(TUNNEL_ERROR|TUNNEL_WARN|TUNNEL_INFO);
368 SetLogLevel(TUNNEL_ERROR|TUNNEL_WARN);
373 bool TunnelManager::isEnabled() {
376 void TunnelManager::UdpMirrorClientListener(bool isUdpAvailable, void* data) {
377 TunnelManager* thiz = (TunnelManager*)data;
378 if (isUdpAvailable) {
379 LOGI("Tunnel is not required, disabling");
381 thiz->mAutoDetectStarted = false;
383 if (++thiz->mCurrentUdpMirrorClient !=thiz->mUdpMirrorClients.end()) {
384 //1 enable tunnable but also try backup server
385 LOGI("Tunnel is required, enabling; Trying backup udp mirror");
387 UdpMirrorClient &lUdpMirrorClient=*thiz->mCurrentUdpMirrorClient;
388 lUdpMirrorClient.start(TunnelManager::UdpMirrorClientListener,(void*)thiz);
390 LOGI("Tunnel is required, enabling; no backup udp mirror available");
391 thiz->mAutoDetectStarted = false;
398 void TunnelManager::autoDetect() {
399 // first check if udp mirrors was provisionned
400 if (mUdpMirrorClients.empty()) {
401 LOGE("No UDP mirror server configured aborting auto detection");
404 if (mAutoDetectStarted) {
405 LOGE("auto detection already in progress, restarting");
406 (*mCurrentUdpMirrorClient).stop();
408 mAutoDetectStarted=true;
409 mCurrentUdpMirrorClient =mUdpMirrorClients.begin();
410 UdpMirrorClient &lUdpMirrorClient=*mCurrentUdpMirrorClient;
411 lUdpMirrorClient.start(TunnelManager::UdpMirrorClientListener,(void*)this);
415 void TunnelManager::setHttpProxyAuthInfo(const char* username,const char* passwd) {
416 mHttpUserName=username?username:"";
417 mHttpPasswd=passwd?passwd:"";
418 if (mTunnelClient) mTunnelClient->setHttpProxyAuthInfo(username,passwd);
421 void TunnelManager::setHttpProxy(const char *host,int port, const char *username, const char *passwd){
422 mHttpUserName=username?username:"";
423 mHttpPasswd=passwd?passwd:"";
424 mHttpProxyPort=(port>0) ? port : 0;
425 mHttpProxyHost=host ? host : "";
426 if (mTunnelClient) mTunnelClient->setHttpProxy(host, port, username, passwd);
429 LinphoneCore *TunnelManager::getLinphoneCore(){