forked from mirrors/linphone-iphone
550af5a8c7
This caused regressions, like for example linphone_core_clear_proxy_config() not sending any unREGISTER.
397 lines
11 KiB
C++
397 lines
11 KiB
C++
/*
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* C Implementation: tunnel
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*
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* Description:
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*
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*
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* Author: Simon Morlat <simon.morlat@linphone.org>, (C) 2009
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*
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* Copyright (C) 2010 Belledonne Comunications, Grenoble, France
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*
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*/
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#include "TunnelManager.hh"
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#include "ortp/rtpsession.h"
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#include "linphonecore.h"
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#include "linphonecore_utils.h"
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#ifndef USE_BELLESIP
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#include "eXosip2/eXosip_transport_hook.h"
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#endif
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#include "tunnel/udp_mirror.hh"
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#include "private.h"
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#ifdef ANDROID
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#include <android/log.h>
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#endif
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using namespace belledonnecomm;
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using namespace ::std;
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void TunnelManager::addServer(const char *ip, int port,unsigned int udpMirrorPort,unsigned int delay) {
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if (ip == NULL) {
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ip = "";
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ms_warning("Adding tunnel server with empty ip, it will not work!");
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}
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addServer(ip,port);
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mUdpMirrorClients.push_back(UdpMirrorClient(ServerAddr(ip,udpMirrorPort),delay));
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}
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void TunnelManager::addServer(const char *ip, int port) {
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if (ip == NULL) {
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ip = "";
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ms_warning("Adding tunnel server with empty ip, it will not work!");
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}
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mServerAddrs.push_back(ServerAddr(ip,port));
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if (mTunnelClient) mTunnelClient->addServer(ip,port);
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}
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void TunnelManager::cleanServers() {
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mServerAddrs.clear();
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UdpMirrorClientList::iterator it;
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mAutoDetectStarted=false;
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for (it = mUdpMirrorClients.begin(); it != mUdpMirrorClients.end();) {
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UdpMirrorClient& s=*it++;
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s.stop();
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}
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mUdpMirrorClients.clear();
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if (mTunnelClient) mTunnelClient->cleanServers();
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}
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void TunnelManager::reconnect(){
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if (mTunnelClient)
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mTunnelClient->reconnect();
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}
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void TunnelManager::setCallback(StateCallback cb, void *userdata) {
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mCallback=cb;
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mCallbackData=userdata;
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}
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static void sCloseRtpTransport(RtpTransport *t, void *userData){
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TunnelSocket *s=(TunnelSocket*)userData;
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TunnelManager *manager=(TunnelManager*)s->getUserPointer();
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manager->closeRtpTransport(t, s);
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}
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void TunnelManager::closeRtpTransport(RtpTransport *t, TunnelSocket *s){
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mTunnelClient->closeSocket(s);
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ms_free(t);
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}
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static RtpTransport *sCreateRtpTransport(void* userData, int port){
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return ((TunnelManager *) userData)->createRtpTransport(port);
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}
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RtpTransport *TunnelManager::createRtpTransport(int port){
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TunnelSocket *socket=mTunnelClient->createSocket(port);
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socket->setUserPointer(this);
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RtpTransport *t=ms_new0(RtpTransport,1);
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t->t_getsocket=NULL;
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t->t_recvfrom=customRecvfrom;
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t->t_sendto=customSendto;
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t->t_close=sCloseRtpTransport;
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t->data=socket;
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return t;
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}
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void TunnelManager::start() {
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if (!mTunnelClient) {
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mTunnelClient = new TunnelClient();
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mTunnelClient->setCallback((StateCallback)tunnelCallback,this);
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list<ServerAddr>::iterator it;
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for(it=mServerAddrs.begin();it!=mServerAddrs.end();++it){
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const ServerAddr &addr=*it;
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mTunnelClient->addServer(addr.mAddr.c_str(), addr.mPort);
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}
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mTunnelClient->setHttpProxy(mHttpProxyHost.c_str(), mHttpProxyPort, mHttpUserName.c_str(), mHttpPasswd.c_str());
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}
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mTunnelClient->start();
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}
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bool TunnelManager::isStarted() {
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return mTunnelClient != 0 && mTunnelClient->isStarted();
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}
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bool TunnelManager::isReady() const {
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return mTunnelClient && mTunnelClient->isReady() && mReady;
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}
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int TunnelManager::customSendto(struct _RtpTransport *t, mblk_t *msg , int flags, const struct sockaddr *to, socklen_t tolen){
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int size;
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msgpullup(msg,-1);
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size=msgdsize(msg);
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((TunnelSocket*)t->data)->sendto(msg->b_rptr,size,to,tolen);
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return size;
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}
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int TunnelManager::customRecvfrom(struct _RtpTransport *t, mblk_t *msg, int flags, struct sockaddr *from, socklen_t *fromlen){
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int err=((TunnelSocket*)t->data)->recvfrom(msg->b_wptr,msg->b_datap->db_lim-msg->b_datap->db_base,from,*fromlen);
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if (err>0) return err;
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return 0;
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}
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TunnelManager::TunnelManager(LinphoneCore* lc) :TunnelClientController()
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,mCore(lc)
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,mCallback(NULL)
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,mEnabled(false)
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,mTunnelClient(NULL)
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,mAutoDetectStarted(false)
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,mReady(false)
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,mHttpProxyPort(0){
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linphone_core_add_iterate_hook(mCore,(LinphoneCoreIterateHook)sOnIterate,this);
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mTransportFactories.audio_rtcp_func=sCreateRtpTransport;
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mTransportFactories.audio_rtcp_func_data=this;
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mTransportFactories.audio_rtp_func=sCreateRtpTransport;
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mTransportFactories.audio_rtp_func_data=this;
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mTransportFactories.video_rtcp_func=sCreateRtpTransport;
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mTransportFactories.video_rtcp_func_data=this;
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mTransportFactories.video_rtp_func=sCreateRtpTransport;
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mTransportFactories.video_rtp_func_data=this;
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}
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TunnelManager::~TunnelManager(){
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stopClient();
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}
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void TunnelManager::stopClient(){
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sal_disable_tunnel(mCore->sal);
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if (mTunnelClient){
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delete mTunnelClient;
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mTunnelClient=NULL;
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}
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}
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void TunnelManager::processTunnelEvent(const Event &ev){
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LinphoneProxyConfig* lProxy;
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linphone_core_get_default_proxy(mCore, &lProxy);
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if (mEnabled && mTunnelClient->isReady()){
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ms_message("Tunnel is up, registering now");
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linphone_core_set_firewall_policy(mCore,LinphonePolicyNoFirewall);
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linphone_core_set_rtp_transport_factories(mCore,&mTransportFactories);
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sal_enable_tunnel(mCore->sal, mTunnelClient);
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//register
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if (lProxy) {
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linphone_proxy_config_refresh_register(lProxy);
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}
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mReady=true;
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}else if (mEnabled && !mTunnelClient->isReady()){
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/* we got disconnected from the tunnel */
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mReady=false;
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}
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}
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void TunnelManager::waitUnRegistration(){
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LinphoneProxyConfig* lProxy;
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linphone_core_get_default_proxy(mCore, &lProxy);
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if (lProxy && linphone_proxy_config_get_state(lProxy)==LinphoneRegistrationOk) {
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int i=0;
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linphone_proxy_config_edit(lProxy);
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linphone_proxy_config_enable_register(lProxy,FALSE);
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linphone_proxy_config_done(lProxy);
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//make sure unregister is sent and authenticated
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do{
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linphone_core_iterate(mCore);
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ms_usleep(20000);
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if (i>100){
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ms_message("tunnel: timeout for unregistration expired, giving up");
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break;
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}
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i++;
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}while(linphone_proxy_config_get_state(lProxy)!=LinphoneRegistrationCleared);
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}
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}
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void TunnelManager::enable(bool isEnable) {
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ms_message("Turning tunnel [%s]",(isEnable?"on":"off"));
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if (isEnable && !mEnabled){
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mEnabled=true;
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//1 save transport and firewall policy
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linphone_core_get_sip_transports(mCore, &mRegularTransport);
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mPreviousFirewallPolicy=linphone_core_get_firewall_policy(mCore);
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//2 unregister
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waitUnRegistration();
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//3 insert tunnel
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start();
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}else if (!isEnable && mEnabled){
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//1 unregister
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waitUnRegistration();
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mEnabled=false;
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stopClient();
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mReady=false;
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linphone_core_set_rtp_transport_factories(mCore,NULL);
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sal_disable_tunnel(mCore->sal);
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// Set empty transports to force the setting of regular transport, otherwise it is not applied
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LCSipTransports lTransport;
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lTransport.udp_port = 0;
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lTransport.tcp_port = 0;
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lTransport.tls_port = 0;
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lTransport.dtls_port = 0;
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linphone_core_set_sip_transports(mCore, &lTransport);
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//Restore transport and firewall policy
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linphone_core_set_sip_transports(mCore, &mRegularTransport);
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linphone_core_set_firewall_policy(mCore, mPreviousFirewallPolicy);
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//register
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LinphoneProxyConfig* lProxy;
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linphone_core_get_default_proxy(mCore, &lProxy);
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if (lProxy) {
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linphone_proxy_config_edit(lProxy);
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linphone_proxy_config_enable_register(lProxy,TRUE);
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linphone_proxy_config_done(lProxy);
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}
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}
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}
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void TunnelManager::tunnelCallback(bool connected, TunnelManager *zis){
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Event ev;
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ev.mType=TunnelEvent;
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ev.mData.mConnected=connected;
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zis->postEvent(ev);
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}
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void TunnelManager::onIterate(){
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mMutex.lock();
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while(!mEvq.empty()){
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Event ev=mEvq.front();
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mEvq.pop();
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mMutex.unlock();
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if (ev.mType==TunnelEvent)
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processTunnelEvent(ev);
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else if (ev.mType==UdpMirrorClientEvent){
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processUdpMirrorEvent(ev);
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}
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mMutex.lock();
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}
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mMutex.unlock();
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}
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/*invoked from linphone_core_iterate() */
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void TunnelManager::sOnIterate(TunnelManager *zis){
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zis->onIterate();
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}
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#ifdef ANDROID
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extern void linphone_android_log_handler(int prio, char *str);
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static void linphone_android_tunnel_log_handler(int lev, const char *fmt, va_list args) {
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char str[4096];
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vsnprintf(str, sizeof(str) - 1, fmt, args);
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str[sizeof(str) - 1] = '\0';
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int prio;
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switch(lev){
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case TUNNEL_DEBUG: prio = ANDROID_LOG_DEBUG; break;
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case TUNNEL_INFO: prio = ANDROID_LOG_INFO; break;
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case TUNNEL_NOTICE: prio = ANDROID_LOG_INFO; break;
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case TUNNEL_WARN: prio = ANDROID_LOG_WARN; break;
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case TUNNEL_ERROR: prio = ANDROID_LOG_ERROR; break;
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default: prio = ANDROID_LOG_DEFAULT; break;
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}
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linphone_android_log_handler(prio, str);
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}
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#endif /*ANDROID*/
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void TunnelManager::enableLogs(bool value) {
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enableLogs(value,NULL);
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}
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void TunnelManager::enableLogs(bool isEnabled,LogHandler logHandler) {
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if (logHandler != NULL) SetLogHandler(logHandler);
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#ifdef ANDROID
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else SetLogHandler(linphone_android_tunnel_log_handler);
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#else
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else SetLogHandler(tunnel_default_log_handler);
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#endif
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if (isEnabled) {
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SetLogLevel(TUNNEL_ERROR|TUNNEL_WARN|TUNNEL_INFO);
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} else {
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SetLogLevel(TUNNEL_ERROR|TUNNEL_WARN);
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}
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}
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bool TunnelManager::isEnabled() {
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return mEnabled;
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}
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void TunnelManager::processUdpMirrorEvent(const Event &ev){
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if (ev.mData.mHaveUdp) {
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LOGI("Tunnel is not required, disabling");
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enable(false);
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mAutoDetectStarted = false;
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} else {
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mCurrentUdpMirrorClient++;
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if (mCurrentUdpMirrorClient !=mUdpMirrorClients.end()) {
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// enable tunnel but also try backup server
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LOGI("Tunnel is required, enabling; Trying backup udp mirror");
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UdpMirrorClient &lUdpMirrorClient=*mCurrentUdpMirrorClient;
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lUdpMirrorClient.start(TunnelManager::sUdpMirrorClientCallback,(void*)this);
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} else {
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LOGI("Tunnel is required, enabling; no backup udp mirror available");
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mAutoDetectStarted = false;
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}
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enable(true);
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}
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}
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void TunnelManager::postEvent(const Event &ev){
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mMutex.lock();
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mEvq.push(ev);
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mMutex.unlock();
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}
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void TunnelManager::sUdpMirrorClientCallback(bool isUdpAvailable, void* data) {
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TunnelManager* thiz = (TunnelManager*)data;
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Event ev;
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ev.mType=UdpMirrorClientEvent;
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ev.mData.mHaveUdp=isUdpAvailable;
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thiz->postEvent(ev);
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}
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void TunnelManager::autoDetect() {
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// first check if udp mirrors was provisionned
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if (mUdpMirrorClients.empty()) {
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LOGE("No UDP mirror server configured aborting auto detection");
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return;
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}
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if (mAutoDetectStarted) {
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LOGE("auto detection already in progress, restarting");
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(*mCurrentUdpMirrorClient).stop();
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}
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mAutoDetectStarted=true;
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mCurrentUdpMirrorClient =mUdpMirrorClients.begin();
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UdpMirrorClient &lUdpMirrorClient=*mCurrentUdpMirrorClient;
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lUdpMirrorClient.start(TunnelManager::sUdpMirrorClientCallback,(void*)this);
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}
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void TunnelManager::setHttpProxyAuthInfo(const char* username,const char* passwd) {
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mHttpUserName=username?username:"";
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mHttpPasswd=passwd?passwd:"";
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if (mTunnelClient) mTunnelClient->setHttpProxyAuthInfo(username,passwd);
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}
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void TunnelManager::setHttpProxy(const char *host,int port, const char *username, const char *passwd){
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mHttpUserName=username?username:"";
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mHttpPasswd=passwd?passwd:"";
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mHttpProxyPort=(port>0) ? port : 0;
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mHttpProxyHost=host ? host : "";
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if (mTunnelClient) mTunnelClient->setHttpProxy(host, port, username, passwd);
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}
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LinphoneCore *TunnelManager::getLinphoneCore(){
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return mCore;
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}
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