3186 lines
87 KiB
C++
3186 lines
87 KiB
C++
/**
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* ysipchan.cpp
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* This file is part of the YATE Project http://YATE.null.ro
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*
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* Yet Another Sip Channel
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*
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* Yet Another Telephony Engine - a fully featured software PBX and IVR
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* Copyright (C) 2004-2006 Null Team
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include <yatephone.h>
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#include <yatesip.h>
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#include <string.h>
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using namespace TelEngine;
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namespace { // anonymous
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#define EXPIRES_MIN 60
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#define EXPIRES_DEF 600
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#define EXPIRES_MAX 3600
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/* Yate Payloads for the AV profile */
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static TokenDict dict_payloads[] = {
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{ "mulaw", 0 },
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{ "alaw", 8 },
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{ "gsm", 3 },
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{ "lpc10", 7 },
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{ "slin", 11 },
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{ "g726", 2 },
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{ "g722", 9 },
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{ "g723", 4 },
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{ "g728", 15 },
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{ "g729", 18 },
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{ "ilbc", 98 },
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{ "ilbc20", 98 },
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{ "ilbc30", 98 },
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{ "h261", 31 },
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{ "h263", 34 },
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{ "mpv", 32 },
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{ 0, 0 },
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};
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/* SDP Payloads for the AV profile */
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static TokenDict dict_rtpmap[] = {
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{ "PCMU/8000", 0 },
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{ "PCMA/8000", 8 },
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{ "GSM/8000", 3 },
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{ "LPC/8000", 7 },
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{ "L16/8000", 11 },
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{ "G726-32/8000", 2 },
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{ "G722/8000", 9 },
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{ "G723/8000", 4 },
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{ "G728/8000", 15 },
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{ "G729/8000", 18 },
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{ "iLBC/8000", 98 },
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{ "H261/90000", 31 },
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{ "H263/90000", 34 },
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{ "MPV/90000", 32 },
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{ 0, 0 },
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};
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static TokenDict dict_errors[] = {
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{ "incomplete", 484 },
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{ "noroute", 404 },
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{ "noroute", 604 },
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{ "noconn", 503 },
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{ "noauth", 401 },
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{ "nomedia", 415 },
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{ "nocall", 481 },
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{ "busy", 486 },
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{ "busy", 600 },
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{ "noanswer", 487 },
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{ "rejected", 406 },
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{ "rejected", 606 },
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{ "forbidden", 403 },
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{ "forbidden", 603 },
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{ "offline", 404 },
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{ "congestion", 480 },
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{ "failure", 500 },
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{ "pending", 491 },
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{ "looping", 483 },
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{ 0, 0 },
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};
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class RtpMedia : public String
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{
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public:
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RtpMedia(const char* media, const char* formats, int rport = -1, int lport = -1);
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virtual ~RtpMedia();
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inline bool isAudio() const
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{ return m_audio; }
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inline const String& suffix() const
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{ return m_suffix; }
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inline const String& id() const
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{ return m_id; }
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inline const String& format() const
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{ return m_format; }
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inline const String& formats() const
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{ return m_formats; }
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inline const String& remotePort() const
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{ return m_rPort; }
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inline const String& localPort() const
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{ return m_lPort; }
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const char* fmtList() const;
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bool update(const char* formats, int rport = -1, int lport = -1);
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void update(const Message& msg, bool pickFormat);
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private:
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bool m_audio;
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// suffix used for this type
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String m_suffix;
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// list of supported format names
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String m_formats;
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// format used for sending data
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String m_format;
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// id of the local RTP channel
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String m_id;
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// remote RTP port
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String m_rPort;
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// local RTP port
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String m_lPort;
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};
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class YateUDPParty : public SIPParty
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{
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public:
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YateUDPParty(Socket* sock, const SocketAddr& addr, int localPort, const char* localAddr = 0);
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~YateUDPParty();
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virtual void transmit(SIPEvent* event);
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virtual const char* getProtoName() const;
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virtual bool setParty(const URI& uri);
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protected:
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Socket* m_sock;
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SocketAddr m_addr;
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};
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class YateSIPEndPoint;
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class YateSIPEngine : public SIPEngine
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{
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public:
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YateSIPEngine(YateSIPEndPoint* ep);
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virtual bool buildParty(SIPMessage* message);
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virtual bool checkUser(const String& username, const String& realm, const String& nonce,
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const String& method, const String& uri, const String& response,
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const SIPMessage* message, GenObject* userData);
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inline bool prack() const
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{ return m_prack; }
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private:
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static bool copyAuthParams(NamedList* dest, const NamedList& src);
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YateSIPEndPoint* m_ep;
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bool m_prack;
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};
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class YateSIPLine : public String
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{
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YCLASS(YateSIPLine,String)
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public:
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YateSIPLine(const String& name);
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virtual ~YateSIPLine();
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void setupAuth(SIPMessage* msg) const;
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SIPMessage* buildRegister(int expires) const;
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void login();
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void logout();
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bool process(SIPEvent* ev);
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void timer(const Time& when);
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bool update(const Message& msg);
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inline const String& getLocalAddr() const
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{ return m_localAddr; }
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inline const String& getPartyAddr() const
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{ return m_outbound ? m_outbound : m_partyAddr; }
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inline int getLocalPort() const
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{ return m_localPort; }
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inline int getPartyPort() const
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{ return m_partyPort; }
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inline const String& getFullName() const
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{ return m_display; }
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inline const String& getUserName() const
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{ return m_username; }
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inline const String& getAuthName() const
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{ return m_authname ? m_authname : m_username; }
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inline const String& domain() const
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{ return m_domain ? m_domain : m_registrar; }
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inline bool valid() const
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{ return m_valid; }
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inline bool marked() const
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{ return m_marked; }
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inline void marked(bool mark)
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{ m_marked = mark; }
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private:
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void clearTransaction();
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bool change(String& dest, const String& src);
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bool change(int& dest, int src);
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void keepalive();
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String m_registrar;
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String m_username;
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String m_authname;
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String m_password;
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String m_outbound;
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String m_domain;
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String m_display;
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u_int64_t m_resend;
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u_int64_t m_keepalive;
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int m_interval;
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int m_alive;
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SIPTransaction* m_tr;
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bool m_marked;
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bool m_valid;
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String m_localAddr;
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String m_partyAddr;
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int m_localPort;
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int m_partyPort;
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bool m_localDetect;
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};
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class YateSIPEndPoint : public Thread
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{
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public:
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YateSIPEndPoint();
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~YateSIPEndPoint();
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bool Init(void);
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void run(void);
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bool incoming(SIPEvent* e, SIPTransaction* t);
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void invite(SIPEvent* e, SIPTransaction* t);
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void regreq(SIPEvent* e, SIPTransaction* t);
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void options(SIPEvent* e, SIPTransaction* t);
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bool generic(SIPEvent* e, SIPTransaction* t);
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bool buildParty(SIPMessage* message, const char* host = 0, int port = 0, const YateSIPLine* line = 0);
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inline YateSIPEngine* engine() const
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{ return m_engine; }
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inline int port() const
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{ return m_port; }
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inline Socket* socket() const
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{ return m_sock; }
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private:
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void addMessage(const char* buf, int len, const SocketAddr& addr, int port);
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int m_port;
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String m_local;
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Socket* m_sock;
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SocketAddr m_addr;
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YateSIPEngine *m_engine;
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};
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class YateSIPConnection : public Channel
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{
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YCLASS(YateSIPConnection,Channel)
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public:
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enum {
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Incoming = 0,
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Outgoing = 1,
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Ringing = 2,
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Established = 3,
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Cleared = 4,
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};
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enum {
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MediaMissing,
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MediaStarted,
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MediaMuted
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};
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YateSIPConnection(SIPEvent* ev, SIPTransaction* tr);
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YateSIPConnection(Message& msg, const String& uri, const char* target = 0);
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~YateSIPConnection();
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virtual void disconnected(bool final, const char *reason);
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virtual bool msgProgress(Message& msg);
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virtual bool msgRinging(Message& msg);
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virtual bool msgAnswered(Message& msg);
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virtual bool msgTone(Message& msg, const char* tone);
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virtual bool msgText(Message& msg, const char* text);
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virtual bool msgUpdate(Message& msg);
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virtual bool callRouted(Message& msg);
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virtual void callAccept(Message& msg);
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virtual void callRejected(const char* error, const char* reason, const Message* msg);
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void startRouter();
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bool process(SIPEvent* ev);
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bool checkUser(SIPTransaction* t, bool refuse = true);
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void doBye(SIPTransaction* t);
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void doCancel(SIPTransaction* t);
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void reInvite(SIPTransaction* t);
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void hangup();
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inline const SIPDialog& dialog() const
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{ return m_dialog; }
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inline void setStatus(const char *stat, int state = -1)
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{ status(stat); if (state >= 0) m_state = state; }
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inline void setReason(const char* str = "Request Terminated", int code = 487)
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{ m_reason = str; m_reasonCode = code; }
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inline SIPTransaction* getTransaction() const
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{ return m_tr; }
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inline const String& callid() const
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{ return m_callid; }
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inline const String& user() const
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{ return m_user; }
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inline const String& getHost() const
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{ return m_host; }
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inline int getPort() const
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{ return m_port; }
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inline const String& getRtpAddr() const
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{ return m_externalAddr ? m_externalAddr : m_rtpLocalAddr; }
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private:
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virtual void statusParams(String& str);
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void setMedia(ObjList* media);
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void clearTransaction();
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void detachTransaction2();
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SIPMessage* createDlgMsg(const char* method, const char* uri = 0);
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bool emitPRACK(const SIPMessage* msg);
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bool dispatchRtp(RtpMedia* media, const char* addr, bool start, bool pick);
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SDPBody* createSDP(const char* addr = 0, ObjList* mediaList = 0);
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SDPBody* createProvisionalSDP(Message& msg);
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SDPBody* createPasstroughSDP(Message& msg, bool update = true);
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SDPBody* createRtpSDP(const char* addr, const Message& msg);
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SDPBody* createRtpSDP(bool start = false);
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bool startRtp();
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bool addSdpParams(Message& msg, const SIPBody* body);
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bool addRtpParams(Message& msg, const String& natAddr, const SIPBody* body);
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SIPTransaction* m_tr;
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SIPTransaction* m_tr2;
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bool m_hungup;
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bool m_byebye;
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int m_state;
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String m_reason;
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int m_reasonCode;
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String m_callid;
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// SIP dialog of this call, used for re-INVITE or BYE
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SIPDialog m_dialog;
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URI m_uri;
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// our external IP address, possibly outside of a NAT
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String m_externalAddr;
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// if we do RTP forwarding or not
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bool m_rtpForward;
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// if we forward the SDP as-is
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bool m_sdpForward;
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// remote RTP address
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String m_rtpAddr;
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// local RTP address
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String m_rtpLocalAddr;
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// list of media descriptors
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ObjList* m_rtpMedia;
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// unique SDP session number
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int m_sdpSession;
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// SDP version number, incremented each time we generate a new SDP
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int m_sdpVersion;
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String m_host;
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String m_user;
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String m_line;
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int m_port;
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Message* m_route;
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ObjList* m_routes;
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bool m_authBye;
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int m_mediaStatus;
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bool m_inband;
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};
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class YateSIPGenerate : public GenObject
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{
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YCLASS(YateSIPGenerate,GenObject)
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public:
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YateSIPGenerate(SIPMessage* m);
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virtual ~YateSIPGenerate();
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bool process(SIPEvent* ev);
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bool busy() const
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{ return m_tr != 0; }
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int code() const
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{ return m_code; }
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private:
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void clearTransaction();
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SIPTransaction* m_tr;
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int m_code;
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};
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class UserHandler : public MessageHandler
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{
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public:
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UserHandler()
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: MessageHandler("user.login",150)
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{ }
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virtual bool received(Message &msg);
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};
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class SipHandler : public MessageHandler
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{
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public:
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SipHandler()
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: MessageHandler("xsip.generate",110)
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{ }
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virtual bool received(Message &msg);
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};
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class SIPDriver : public Driver
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{
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public:
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SIPDriver();
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~SIPDriver();
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virtual void initialize();
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virtual bool msgExecute(Message& msg, String& dest);
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virtual bool msgRoute(Message& msg);
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virtual bool received(Message& msg, int id);
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inline YateSIPEndPoint* ep() const
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{ return m_endpoint; }
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YateSIPConnection* findCall(const String& callid);
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YateSIPConnection* findDialog(const SIPDialog& dialog);
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YateSIPLine* findLine(const String& line);
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YateSIPLine* findLine(const String& addr, int port, const String& user = String::empty());
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bool validLine(const String& line);
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private:
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YateSIPEndPoint *m_endpoint;
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};
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static SIPDriver plugin;
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static ObjList s_lines;
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static Configuration s_cfg;
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static String s_realm = "Yate";
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static int s_maxForwards = 20;
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static bool s_privacy = false;
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static bool s_auto_nat = true;
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static bool s_inband = false;
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static bool s_forward_sdp = false;
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static bool s_auth_register = true;
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static int s_expires_min = EXPIRES_MIN;
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static int s_expires_def = EXPIRES_DEF;
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static int s_expires_max = EXPIRES_MAX;
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// Parse a SDP and return a possibly filtered list of SDP media
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static ObjList* parseSDP(const SDPBody* sdp, String& addr, ObjList* oldMedia = 0, const char* media = 0)
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{
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const NamedString* c = sdp->getLine("c");
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if (c) {
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String tmp(*c);
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if (tmp.startSkip("IN IP4")) {
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tmp.trimBlanks();
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// Handle the case media is muted
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if (tmp == "0.0.0.0")
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tmp.clear();
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addr = tmp;
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}
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}
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ObjList* lst = 0;
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c = sdp->getLine("m");
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for (; c; c = sdp->getNextLine(c)) {
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String tmp(*c);
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int sep = tmp.find(' ');
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if (sep < 1)
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continue;
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String type = tmp.substr(0,sep);
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tmp >> " ";
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if (media && (type != media))
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continue;
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int port = 0;
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tmp >> port >> " RTP/AVP";
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String fmt;
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bool defcodecs = s_cfg.getBoolValue("codecs","default",true);
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int ptime = 0;
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while (tmp[0] == ' ') {
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int var = -1;
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tmp >> " " >> var;
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int mode = 0;
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String payload(lookup(var,dict_payloads));
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const ObjList* l = sdp->lines().find(c);
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while (l && (l = l->skipNext())) {
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const NamedString* s = static_cast<NamedString*>(l->get());
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if (s->name() == "m")
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break;
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if (s->name() != "a")
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continue;
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String line(*s);
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if (line.startSkip("ptime:",false))
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line >> ptime;
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else if (line.startSkip("rtpmap:",false)) {
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int num = -1;
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line >> num >> " ";
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if (num == var) {
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for (const TokenDict* map = dict_rtpmap; map->token; map++) {
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if (line.startsWith(map->token,false,true)) {
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const char* pload = lookup(map->value,dict_payloads);
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if (pload)
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payload = pload;
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break;
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}
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}
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}
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}
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else if (line.startSkip("fmtp:",false)) {
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int num = -1;
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line >> num >> " ";
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if (num == var) {
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if (line.startSkip("mode=",false))
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line >> mode;
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}
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}
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}
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if (payload == "ilbc") {
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if ((mode == 20) || (ptime == 20))
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payload = "ilbc20";
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else if ((mode == 30) || (ptime == 30))
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payload = "ilbc30";
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else
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payload = s_cfg.getValue("hacks","ilbc_default","ilbc30");
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}
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XDebug(&plugin,DebugAll,"Payload %d format '%s'",var,payload.c_str());
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if (payload && s_cfg.getBoolValue("codecs",payload,defcodecs && DataTranslator::canConvert(payload))) {
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if (fmt)
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fmt << ",";
|
|
fmt << payload;
|
|
}
|
|
}
|
|
RtpMedia* rtp = 0;
|
|
// try to take the media descriptor from the old list
|
|
if (oldMedia) {
|
|
ObjList* om = oldMedia->find(type);
|
|
if (om)
|
|
rtp = static_cast<RtpMedia*>(om->remove(false));
|
|
}
|
|
if (rtp)
|
|
rtp->update(fmt,port);
|
|
else
|
|
rtp = new RtpMedia(type,fmt,port);
|
|
if (!lst)
|
|
lst = new ObjList;
|
|
lst->append(rtp);
|
|
if (media)
|
|
return lst;
|
|
}
|
|
return lst;
|
|
}
|
|
|
|
// Check if an IPv4 address belongs to one of the non-routable blocks
|
|
static bool isPrivateAddr(const String& host)
|
|
{
|
|
if (host.startsWith("192.168.") || host.startsWith("169.254.") || host.startsWith("10."))
|
|
return true;
|
|
String s(host);
|
|
if (!s.startSkip("172.",false))
|
|
return false;
|
|
int i = 0;
|
|
s >> i;
|
|
return (i >= 16) && (i <= 31) && s.startsWith(".");
|
|
}
|
|
|
|
// Check if there may be a NAT between an address embedded in the protocol
|
|
// and an address obtained from the network layer
|
|
static bool isNatBetween(const String& embAddr, const String& netAddr)
|
|
{
|
|
return isPrivateAddr(embAddr) && !isPrivateAddr(netAddr);
|
|
}
|
|
|
|
// List of critical headers we don't want to handle generically
|
|
static const char* rejectHeaders[] = {
|
|
"via",
|
|
"route",
|
|
"record-route",
|
|
"call-id",
|
|
"cseq",
|
|
"from",
|
|
"to",
|
|
"max-forwards",
|
|
"content-length",
|
|
"www-authenticate",
|
|
"proxy-authenticate",
|
|
"authorization",
|
|
"proxy-authorization",
|
|
0
|
|
};
|
|
|
|
// Copy headers from SIP message to Yate message
|
|
static void copySipHeaders(Message& msg, const SIPMessage& sip)
|
|
{
|
|
const ObjList* l = sip.header.skipNull();
|
|
for (; l; l = l->skipNext()) {
|
|
const SIPHeaderLine* t = static_cast<const SIPHeaderLine*>(l->get());
|
|
String name(t->name());
|
|
name.toLower();
|
|
const char** hdr = rejectHeaders;
|
|
for (; *hdr; hdr++)
|
|
if (name == *hdr)
|
|
break;
|
|
if (*hdr)
|
|
continue;
|
|
String tmp(*t);
|
|
const ObjList* p = t->params().skipNull();
|
|
for (; p; p = p->skipNext()) {
|
|
NamedString* s = static_cast<NamedString*>(p->get());
|
|
tmp << ";" << s->name();
|
|
if (!s->null())
|
|
tmp << "=" << *s;
|
|
}
|
|
msg.addParam("sip_"+name,tmp);
|
|
}
|
|
}
|
|
|
|
// Copy headers from Yate message to SIP message
|
|
static void copySipHeaders(SIPMessage& sip, const Message& msg, const char* prefix = "sip_")
|
|
{
|
|
unsigned int n = msg.length();
|
|
for (unsigned int i = 0; i < n; i++) {
|
|
NamedString* str = msg.getParam(i);
|
|
if (!str)
|
|
continue;
|
|
String name(str->name());
|
|
if (!name.startSkip(prefix,false))
|
|
continue;
|
|
if (name.trimBlanks().null())
|
|
continue;
|
|
sip.addHeader(name,*str);
|
|
}
|
|
}
|
|
|
|
// Copy privacy related information from SIP message to Yate message
|
|
static void copyPrivacy(Message& msg, const SIPMessage& sip)
|
|
{
|
|
bool anonip = (sip.getHeaderValue("Anonymity") &= "ipaddr");
|
|
const SIPHeaderLine* hl = sip.getHeader("Remote-Party-ID");
|
|
if (!(anonip || hl))
|
|
return;
|
|
const NamedString* p = hl ? hl->getParam("screen") : 0;
|
|
if (p)
|
|
msg.setParam("screened",*p);
|
|
String priv;
|
|
if (anonip)
|
|
priv.append("addr",",");
|
|
p = hl ? hl->getParam("privacy") : 0;
|
|
if (p) {
|
|
if ((*p &= "full") || (*p &= "full-network"))
|
|
priv.append("name,uri",",");
|
|
else if ((*p &= "name") || (*p &= "name-network"))
|
|
priv.append("name",",");
|
|
else if ((*p &= "uri") || (*p &= "uri-network"))
|
|
priv.append("uri",",");
|
|
}
|
|
if (priv)
|
|
msg.setParam("privacy",priv);
|
|
}
|
|
|
|
// Copy privacy related information from Yate message to SIP message
|
|
static void copyPrivacy(SIPMessage& sip, const Message& msg)
|
|
{
|
|
String screened(msg.getValue("screened"));
|
|
String privacy(msg.getValue("privacy"));
|
|
if (screened.null() && privacy.null())
|
|
return;
|
|
bool screen = screened.toBoolean();
|
|
bool anonip = (privacy.find("addr") >= 0);
|
|
bool privname = (privacy.find("name") >= 0);
|
|
bool privuri = (privacy.find("uri") >= 0);
|
|
// allow for a simple "privacy=yes" or similar
|
|
if (privacy.toBoolean(false))
|
|
privname = privuri = true;
|
|
if (anonip)
|
|
sip.setHeader("Anonymity","ipaddr");
|
|
if (screen || privname || privuri) {
|
|
const char* caller = msg.getValue("caller","anonymous");
|
|
String tmp;
|
|
tmp << "\"" << msg.getValue("callername",caller) << "\"";
|
|
tmp << " <" << caller << "@" << msg.getValue("domain","domain") << ">";
|
|
SIPHeaderLine* hl = new SIPHeaderLine("Remote-Party-ID",tmp);
|
|
if (screen)
|
|
hl->setParam("screen","yes");
|
|
if (privname && privuri)
|
|
hl->setParam("privacy","full");
|
|
else if (privname)
|
|
hl->setParam("privacy","name");
|
|
else if (privuri)
|
|
hl->setParam("privacy","uri");
|
|
else
|
|
hl->setParam("privacy","none");
|
|
sip.addHeader(hl);
|
|
}
|
|
}
|
|
|
|
RtpMedia::RtpMedia(const char* media, const char* formats, int rport, int lport)
|
|
: String(media), m_audio(true), m_formats(formats)
|
|
{
|
|
DDebug(&plugin,DebugAll,"RtpMedia::RtpMedia('%s','%s',%d,%d) [%p]",
|
|
media,formats,rport,lport,this);
|
|
if (operator!=("audio")) {
|
|
m_audio = false;
|
|
m_suffix << "_" << media;
|
|
}
|
|
int q = m_formats.find(',');
|
|
m_format = m_formats.substr(0,q);
|
|
if (rport >= 0)
|
|
m_rPort = rport;
|
|
if (lport >= 0)
|
|
m_lPort = lport;
|
|
}
|
|
|
|
RtpMedia::~RtpMedia()
|
|
{
|
|
DDebug(&plugin,DebugAll,"RtpMedia::~RtpMedia() '%s' [%p]",c_str(),this);
|
|
}
|
|
|
|
const char* RtpMedia::fmtList() const
|
|
{
|
|
if (m_formats)
|
|
return m_formats.c_str();
|
|
if (m_format)
|
|
return m_format.c_str();
|
|
// unspecified audio assumed to support G711
|
|
if (m_audio)
|
|
return "alaw,mulaw";
|
|
return 0;
|
|
}
|
|
|
|
// Update members with data taken from a SDP, return true if something changed
|
|
bool RtpMedia::update(const char* formats, int rport, int lport)
|
|
{
|
|
DDebug(&plugin,DebugAll,"RtpMedia::update('%s',%d,%d) [%p]",
|
|
formats,rport,lport,this);
|
|
bool chg = false;
|
|
String tmp(formats);
|
|
if (m_formats != tmp) {
|
|
chg = true;
|
|
m_formats = tmp;
|
|
int q = m_formats.find(',');
|
|
m_format = m_formats.substr(0,q);
|
|
}
|
|
if (rport >= 0) {
|
|
tmp = rport;
|
|
if (m_rPort != tmp) {
|
|
chg = true;
|
|
m_rPort = tmp;
|
|
}
|
|
}
|
|
if (lport >= 0) {
|
|
tmp = lport;
|
|
if (m_lPort != tmp) {
|
|
chg = true;
|
|
m_lPort = tmp;
|
|
}
|
|
}
|
|
return chg;
|
|
}
|
|
|
|
// Update members from a dispatched "chan.rtp" message
|
|
void RtpMedia::update(const Message& msg, bool pickFormat)
|
|
{
|
|
m_id = msg.getValue("rtpid",m_id);
|
|
m_lPort = msg.getValue("localport",m_lPort);
|
|
if (pickFormat)
|
|
m_format = msg.getValue("format");
|
|
}
|
|
|
|
YateUDPParty::YateUDPParty(Socket* sock, const SocketAddr& addr, int localPort, const char* localAddr)
|
|
: m_sock(sock), m_addr(addr)
|
|
{
|
|
DDebug(&plugin,DebugAll,"YateUDPParty::YateUDPParty() %s:%d [%p]",localAddr,localPort,this);
|
|
m_localPort = localPort;
|
|
m_party = m_addr.host();
|
|
m_partyPort = m_addr.port();
|
|
if (localAddr)
|
|
m_local = localAddr;
|
|
else {
|
|
SocketAddr laddr;
|
|
if (laddr.local(addr))
|
|
m_local = laddr.host();
|
|
else
|
|
m_local = "localhost";
|
|
}
|
|
DDebug(&plugin,DebugAll,"YateUDPParty local %s:%d party %s:%d",
|
|
m_local.c_str(),m_localPort,
|
|
m_party.c_str(),m_partyPort);
|
|
}
|
|
|
|
YateUDPParty::~YateUDPParty()
|
|
{
|
|
DDebug(&plugin,DebugAll,"YateUDPParty::~YateUDPParty() [%p]",this);
|
|
m_sock = 0;
|
|
}
|
|
|
|
void YateUDPParty::transmit(SIPEvent* event)
|
|
{
|
|
const SIPMessage* msg = event->getMessage();
|
|
if (!msg)
|
|
return;
|
|
String tmp;
|
|
if (msg->isAnswer())
|
|
tmp << "code " << msg->code;
|
|
else
|
|
tmp << "'" << msg->method << " " << msg->uri << "'";
|
|
if (plugin.debugAt(DebugInfo)) {
|
|
String buf((char*)msg->getBuffer().data(),msg->getBuffer().length());
|
|
Debug(&plugin,DebugInfo,"Sending %s %p to %s:%d\n------\n%s------",
|
|
tmp.c_str(),msg,m_addr.host().c_str(),m_addr.port(),buf.c_str());
|
|
}
|
|
m_sock->sendTo(
|
|
msg->getBuffer().data(),
|
|
msg->getBuffer().length(),
|
|
m_addr
|
|
);
|
|
}
|
|
|
|
const char* YateUDPParty::getProtoName() const
|
|
{
|
|
return "UDP";
|
|
}
|
|
|
|
bool YateUDPParty::setParty(const URI& uri)
|
|
{
|
|
if (m_partyPort && m_party && s_cfg.getBoolValue("general","ignorevia",true))
|
|
return true;
|
|
if (uri.getHost().null())
|
|
return false;
|
|
int port = uri.getPort();
|
|
if (port <= 0)
|
|
port = 5060;
|
|
if (!m_addr.host(uri.getHost())) {
|
|
Debug(&plugin,DebugWarn,"Could not resolve UDP party name '%s' [%p]",
|
|
uri.getHost().safe(),this);
|
|
return false;
|
|
}
|
|
m_addr.port(port);
|
|
m_party = uri.getHost();
|
|
m_partyPort = port;
|
|
DDebug(&plugin,DebugInfo,"New UDP party is %s:%d (%s:%d) [%p]",
|
|
m_party.c_str(),m_partyPort,
|
|
m_addr.host().c_str(),m_addr.port(),
|
|
this);
|
|
return true;
|
|
}
|
|
|
|
YateSIPEngine::YateSIPEngine(YateSIPEndPoint* ep)
|
|
: SIPEngine(s_cfg.getValue("general","useragent")),
|
|
m_ep(ep), m_prack(false)
|
|
{
|
|
addAllowed("INVITE");
|
|
addAllowed("BYE");
|
|
addAllowed("CANCEL");
|
|
if (s_cfg.getBoolValue("general","registrar"))
|
|
addAllowed("REGISTER");
|
|
if (s_cfg.getBoolValue("general","options"))
|
|
addAllowed("OPTIONS");
|
|
m_prack = s_cfg.getBoolValue("general","prack");
|
|
if (m_prack)
|
|
addAllowed("PRACK");
|
|
NamedList *l = s_cfg.getSection("methods");
|
|
if (l) {
|
|
unsigned int len = l->length();
|
|
for (unsigned int i=0; i<len; i++) {
|
|
NamedString *n = l->getParam(i);
|
|
if (!n)
|
|
continue;
|
|
String meth(n->name());
|
|
meth.toUpper();
|
|
addAllowed(meth);
|
|
}
|
|
}
|
|
}
|
|
|
|
bool YateSIPEngine::buildParty(SIPMessage* message)
|
|
{
|
|
return m_ep->buildParty(message);
|
|
}
|
|
|
|
bool YateSIPEngine::copyAuthParams(NamedList* dest, const NamedList& src)
|
|
{
|
|
// we added those and we want to exclude them from copy
|
|
static TokenDict exclude[] = {
|
|
{ "protocol", 1 },
|
|
// purposely copy the username and realm
|
|
{ "nonce", 1 },
|
|
{ "method", 1 },
|
|
{ "uri", 1 },
|
|
{ "response", 1 },
|
|
{ "ip_host", 1 },
|
|
{ "ip_port", 1 },
|
|
{ "address", 1 },
|
|
{ 0, 0 },
|
|
};
|
|
if (!dest)
|
|
return true;
|
|
unsigned int n = src.length();
|
|
for (unsigned int i = 0; i < n; i++) {
|
|
NamedString* s = src.getParam(i);
|
|
if (!s)
|
|
continue;
|
|
if (s->name().toInteger(exclude,0))
|
|
continue;
|
|
dest->setParam(s->name(),*s);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool YateSIPEngine::checkUser(const String& username, const String& realm, const String& nonce,
|
|
const String& method, const String& uri, const String& response,
|
|
const SIPMessage* message, GenObject* userData)
|
|
{
|
|
NamedList* params = YOBJECT(NamedList,userData);
|
|
|
|
Message m("user.auth");
|
|
m.addParam("protocol","sip");
|
|
if (username) {
|
|
m.addParam("username",username);
|
|
m.addParam("realm",realm);
|
|
m.addParam("nonce",nonce);
|
|
m.addParam("response",response);
|
|
}
|
|
m.addParam("method",method);
|
|
m.addParam("uri",uri);
|
|
if (message) {
|
|
m.addParam("ip_host",message->getParty()->getPartyAddr());
|
|
m.addParam("ip_port",String(message->getParty()->getPartyPort()));
|
|
String addr = message->getParty()->getPartyAddr();
|
|
if (addr) {
|
|
addr << ":" << message->getParty()->getPartyPort();
|
|
m.addParam("address",addr);
|
|
}
|
|
}
|
|
|
|
if (params) {
|
|
const char* str = params->getValue("caller");
|
|
if (str)
|
|
m.addParam("caller",str);
|
|
str = params->getValue("called");
|
|
if (str)
|
|
m.addParam("called",str);
|
|
}
|
|
|
|
if (!Engine::dispatch(m))
|
|
return false;
|
|
|
|
// empty password returned means authentication succeeded
|
|
if (m.retValue().null())
|
|
return copyAuthParams(params,m);
|
|
// check for refusals
|
|
if (m.retValue() == "-") {
|
|
if (params) {
|
|
const char* err = m.getValue("error");
|
|
if (err)
|
|
params->setParam("error",err);
|
|
err = m.getValue("reason");
|
|
if (err)
|
|
params->setParam("reason",err);
|
|
}
|
|
return false;
|
|
}
|
|
// password works only with username
|
|
if (!username)
|
|
return false;
|
|
|
|
String res;
|
|
buildAuth(username,realm,m.retValue(),nonce,method,uri,res);
|
|
if (res == response)
|
|
return copyAuthParams(params,m);
|
|
// if the URI included some parameters retry after stripping them off
|
|
int sc = uri.find(';');
|
|
if (sc < 0)
|
|
return false;
|
|
buildAuth(username,realm,m.retValue(),nonce,method,uri.substr(0,sc),res);
|
|
return (res == response) && copyAuthParams(params,m);
|
|
}
|
|
|
|
YateSIPEndPoint::YateSIPEndPoint()
|
|
: Thread("YSIP EndPoint"), m_sock(0), m_engine(0)
|
|
{
|
|
Debug(&plugin,DebugAll,"YateSIPEndPoint::YateSIPEndPoint() [%p]",this);
|
|
}
|
|
|
|
YateSIPEndPoint::~YateSIPEndPoint()
|
|
{
|
|
Debug(&plugin,DebugAll,"YateSIPEndPoint::~YateSIPEndPoint() [%p]",this);
|
|
plugin.channels().clear();
|
|
s_lines.clear();
|
|
if (m_engine) {
|
|
// send any pending events
|
|
while (m_engine->process())
|
|
;
|
|
delete m_engine;
|
|
m_engine = 0;
|
|
}
|
|
if (m_sock) {
|
|
delete m_sock;
|
|
m_sock = 0;
|
|
}
|
|
}
|
|
|
|
bool YateSIPEndPoint::buildParty(SIPMessage* message, const char* host, int port, const YateSIPLine* line)
|
|
{
|
|
if (message->isAnswer())
|
|
return false;
|
|
DDebug(&plugin,DebugAll,"YateSIPEndPoint::buildParty(%p,'%s',%d,%p)",
|
|
message,host,port,line);
|
|
URI uri(message->uri);
|
|
if (line) {
|
|
if (!host)
|
|
host = line->getPartyAddr();
|
|
if (port <= 0)
|
|
port = line->getPartyPort();
|
|
line->setupAuth(message);
|
|
}
|
|
if (!host) {
|
|
host = uri.getHost().safe();
|
|
if (port <= 0)
|
|
port = uri.getPort();
|
|
}
|
|
if (port <= 0)
|
|
port = 5060;
|
|
SocketAddr addr(AF_INET);
|
|
if (!addr.host(host)) {
|
|
Debug(&plugin,DebugWarn,"Error resolving name '%s'",host);
|
|
return false;
|
|
}
|
|
addr.port(port);
|
|
DDebug(&plugin,DebugAll,"built addr: %s:%d",
|
|
addr.host().c_str(),addr.port());
|
|
// reuse the variables now we finished with them
|
|
host = line ? line->getLocalAddr().c_str() : (const char*)0;
|
|
port = line ? line->getLocalPort() : 0;
|
|
if (!host)
|
|
host = m_local;
|
|
if (port <= 0)
|
|
port = m_port;
|
|
YateUDPParty* party = new YateUDPParty(m_sock,addr,port,host);
|
|
message->setParty(party);
|
|
party->deref();
|
|
return true;
|
|
}
|
|
|
|
bool YateSIPEndPoint::Init()
|
|
{
|
|
if (m_sock) {
|
|
Debug(&plugin,DebugInfo,"Already initialized.");
|
|
return true;
|
|
}
|
|
|
|
m_sock = new Socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
|
|
if (!m_sock->valid()) {
|
|
Debug(&plugin,DebugGoOn,"Unable to allocate UDP socket");
|
|
return false;
|
|
}
|
|
|
|
SocketAddr addr(AF_INET);
|
|
addr.port(s_cfg.getIntValue("general","port",5060));
|
|
addr.host(s_cfg.getValue("general","addr","0.0.0.0"));
|
|
|
|
if (!m_sock->bind(addr)) {
|
|
Debug(&plugin,DebugWarn,"Unable to bind to preferred port - using random one instead");
|
|
addr.port(0);
|
|
if (!m_sock->bind(addr)) {
|
|
Debug(&plugin,DebugGoOn,"Unable to bind to any port");
|
|
return false;
|
|
}
|
|
}
|
|
|
|
if (!m_sock->getSockName(addr)) {
|
|
Debug(&plugin,DebugGoOn,"Unable to figure out what I'm bound to");
|
|
return false;
|
|
}
|
|
if (!m_sock->setBlocking(false)) {
|
|
Debug(&plugin,DebugGoOn,"Unable to set non-blocking mode");
|
|
return false;
|
|
}
|
|
Debug(&plugin,DebugCall,"Started on %s:%d", addr.host().safe(), addr.port());
|
|
if (addr.host() != "0.0.0.0")
|
|
m_local = addr.host();
|
|
m_port = addr.port();
|
|
m_engine = new YateSIPEngine(this);
|
|
return true;
|
|
}
|
|
|
|
void YateSIPEndPoint::addMessage(const char* buf, int len, const SocketAddr& addr, int port)
|
|
{
|
|
SIPMessage* msg = SIPMessage::fromParsing(0,buf,len);
|
|
if (!msg)
|
|
return;
|
|
|
|
if (!msg->isAnswer()) {
|
|
URI uri(msg->uri);
|
|
YateSIPLine* line = plugin.findLine(addr.host(),addr.port(),uri.getUser());
|
|
const char* host = 0;
|
|
if (line && line->getLocalPort()) {
|
|
host = line->getLocalAddr();
|
|
port = line->getLocalPort();
|
|
}
|
|
YateUDPParty* party = new YateUDPParty(m_sock,addr,port,host);
|
|
msg->setParty(party);
|
|
party->deref();
|
|
}
|
|
m_engine->addMessage(msg);
|
|
msg->deref();
|
|
}
|
|
|
|
void YateSIPEndPoint::run()
|
|
{
|
|
struct timeval tv;
|
|
char buf[1500];
|
|
/* Watch stdin (fd 0) to see when it has input. */
|
|
for (;;)
|
|
{
|
|
/* Wait up to 5000 microseconds. */
|
|
tv.tv_sec = 0;
|
|
tv.tv_usec = 5000;
|
|
bool ok = false;
|
|
m_sock->select(&ok,0,0,&tv);
|
|
if (ok)
|
|
{
|
|
// we can read the data
|
|
int res = m_sock->recvFrom(buf,sizeof(buf)-1,m_addr);
|
|
if (res <= 0) {
|
|
if (!m_sock->canRetry()) {
|
|
Debug(&plugin,DebugGoOn,"Error on read: %d", m_sock->error());
|
|
}
|
|
} else if (res >= 72) {
|
|
buf[res]=0;
|
|
Debug(&plugin,DebugInfo,"Received %d bytes SIP message from %s:%d\n------\n%s------",
|
|
res,m_addr.host().c_str(),m_addr.port(),buf);
|
|
// we got already the buffer and here we start to do "good" stuff
|
|
addMessage(buf,res,m_addr,m_port);
|
|
//m_engine->addMessage(new YateUDPParty(m_sock,m_addr,m_port),buf,res);
|
|
}
|
|
#ifdef DEBUG
|
|
else
|
|
Debug(&plugin,DebugInfo,"Received short SIP message of %d bytes",res);
|
|
#endif
|
|
}
|
|
else
|
|
Thread::check();
|
|
SIPEvent* e = m_engine->getEvent();
|
|
// hack: use a loop so we can use break and continue
|
|
for (; e; m_engine->processEvent(e),e = 0) {
|
|
if (!e->getTransaction())
|
|
continue;
|
|
plugin.lock();
|
|
GenObject* obj = static_cast<GenObject*>(e->getTransaction()->getUserData());
|
|
RefPointer<YateSIPConnection> conn = YOBJECT(YateSIPConnection,obj);
|
|
YateSIPLine* line = YOBJECT(YateSIPLine,obj);
|
|
YateSIPGenerate* gen = YOBJECT(YateSIPGenerate,obj);
|
|
plugin.unlock();
|
|
if (conn) {
|
|
if (conn->process(e)) {
|
|
delete e;
|
|
break;
|
|
}
|
|
else
|
|
continue;
|
|
}
|
|
if (line) {
|
|
if (line->process(e)) {
|
|
delete e;
|
|
break;
|
|
}
|
|
else
|
|
continue;
|
|
}
|
|
if (gen) {
|
|
if (gen->process(e)) {
|
|
delete e;
|
|
break;
|
|
}
|
|
else
|
|
continue;
|
|
}
|
|
if ((e->getState() == SIPTransaction::Trying) &&
|
|
!e->isOutgoing() && incoming(e,e->getTransaction())) {
|
|
delete e;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
bool YateSIPEndPoint::incoming(SIPEvent* e, SIPTransaction* t)
|
|
{
|
|
if (t->isInvite())
|
|
invite(e,t);
|
|
else if (t->getMethod() == "BYE") {
|
|
YateSIPConnection* conn = plugin.findCall(t->getCallID());
|
|
if (conn)
|
|
conn->doBye(t);
|
|
else
|
|
t->setResponse(481);
|
|
}
|
|
else if (t->getMethod() == "CANCEL") {
|
|
YateSIPConnection* conn = plugin.findCall(t->getCallID());
|
|
if (conn)
|
|
conn->doCancel(t);
|
|
else
|
|
t->setResponse(481);
|
|
}
|
|
else if (t->getMethod() == "REGISTER")
|
|
regreq(e,t);
|
|
else if (t->getMethod() == "OPTIONS")
|
|
options(e,t);
|
|
else
|
|
return generic(e,t);
|
|
return true;
|
|
}
|
|
|
|
void YateSIPEndPoint::invite(SIPEvent* e, SIPTransaction* t)
|
|
{
|
|
if (!plugin.canAccept()) {
|
|
Debug(&plugin,DebugWarn,"Refusing new SIP call, full or exiting");
|
|
t->setResponse(480);
|
|
return;
|
|
}
|
|
|
|
if (e->getMessage()->getParam("To","tag")) {
|
|
SIPDialog dlg(*e->getMessage());
|
|
YateSIPConnection* conn = plugin.findDialog(dlg);
|
|
if (conn)
|
|
conn->reInvite(t);
|
|
else {
|
|
Debug(&plugin,DebugWarn,"Got re-INVITE for missing dialog");
|
|
t->setResponse(481);
|
|
}
|
|
return;
|
|
}
|
|
|
|
YateSIPConnection* conn = new YateSIPConnection(e,t);
|
|
conn->startRouter();
|
|
|
|
}
|
|
|
|
void YateSIPEndPoint::regreq(SIPEvent* e, SIPTransaction* t)
|
|
{
|
|
if (Engine::exiting()) {
|
|
Debug(&plugin,DebugWarn,"Dropping request, engine is exiting");
|
|
t->setResponse(500, "Server Shutting Down");
|
|
return;
|
|
}
|
|
const SIPMessage* message = e->getMessage();
|
|
const SIPHeaderLine* hl = message->getHeader("Contact");
|
|
if (!hl) {
|
|
t->setResponse(400);
|
|
return;
|
|
}
|
|
|
|
Message msg("user.register");
|
|
String user;
|
|
int age = t->authUser(user,false,&msg);
|
|
DDebug(&plugin,DebugAll,"User '%s' age %d",user.c_str(),age);
|
|
if (((age < 0) || (age > 10)) && s_auth_register) {
|
|
t->requestAuth(s_realm,"",age >= 0);
|
|
return;
|
|
}
|
|
|
|
// TODO: track registrations, allow deregistering all
|
|
if (*hl == "*") {
|
|
t->setResponse(200);
|
|
return;
|
|
}
|
|
|
|
URI addr(*hl);
|
|
msg.setParam("username",user);
|
|
msg.setParam("number",addr.getUser());
|
|
msg.setParam("driver","sip");
|
|
String data("sip/" + addr);
|
|
bool nat = isNatBetween(addr.getHost(),message->getParty()->getPartyAddr());
|
|
if (msg.getBoolValue("nat_support",s_auto_nat && nat)) {
|
|
Debug(&plugin,DebugInfo,"Registration NAT detected: private '%s:%d' public '%s:%d'",
|
|
addr.getHost().c_str(),addr.getPort(),
|
|
message->getParty()->getPartyAddr().c_str(),
|
|
message->getParty()->getPartyPort());
|
|
String tmp(addr.getHost());
|
|
tmp << ":" << addr.getPort();
|
|
msg.addParam("reg_nat_addr",tmp);
|
|
int pos = data.find(tmp);
|
|
if (pos >= 0) {
|
|
int len = tmp.length();
|
|
tmp.clear();
|
|
tmp << data.substr(0,pos) << message->getParty()->getPartyAddr()
|
|
<< ":" << message->getParty()->getPartyPort() << data.substr(pos + len);
|
|
data = tmp;
|
|
}
|
|
}
|
|
msg.setParam("data",data);
|
|
msg.setParam("ip_host",message->getParty()->getPartyAddr());
|
|
msg.setParam("ip_port",String(message->getParty()->getPartyPort()));
|
|
|
|
bool dereg = false;
|
|
String tmp(message->getHeader("Expires"));
|
|
int expires = tmp.toInteger(-1);
|
|
if (expires < 0)
|
|
expires = s_expires_def;
|
|
if (expires > s_expires_max)
|
|
expires = s_expires_max;
|
|
if (expires && (expires < s_expires_min)) {
|
|
tmp = s_expires_min;
|
|
SIPMessage* r = new SIPMessage(t->initialMessage(),423);
|
|
r->addHeader("Min-Expires",tmp);
|
|
t->setResponse(r);
|
|
r->deref();
|
|
return;
|
|
}
|
|
tmp = expires;
|
|
msg.setParam("expires",tmp);
|
|
if (!expires) {
|
|
msg = "user.unregister";
|
|
dereg = true;
|
|
}
|
|
hl = message->getHeader("User-Agent");
|
|
if (hl)
|
|
msg.setParam("device",*hl);
|
|
// Always OK deregistration attempts
|
|
if (Engine::dispatch(msg) || dereg) {
|
|
if (dereg) {
|
|
t->setResponse(200);
|
|
Debug(&plugin,DebugNote,"Unregistered user '%s'",user.c_str());
|
|
}
|
|
else {
|
|
tmp = msg.getValue("expires",tmp);
|
|
if (tmp.null())
|
|
tmp = expires;
|
|
SIPMessage* r = new SIPMessage(t->initialMessage(),200);
|
|
r->addHeader("Expires",tmp);
|
|
t->setResponse(r);
|
|
r->deref();
|
|
Debug(&plugin,DebugNote,"Registered user '%s' expires in %s s",
|
|
user.c_str(),tmp.c_str());
|
|
}
|
|
}
|
|
else
|
|
t->setResponse(404);
|
|
}
|
|
|
|
void YateSIPEndPoint::options(SIPEvent* e, SIPTransaction* t)
|
|
{
|
|
const SIPHeaderLine* acpt = e->getMessage()->getHeader("Accept");
|
|
if (acpt) {
|
|
if (*acpt != "application/sdp") {
|
|
t->setResponse(415);
|
|
return;
|
|
}
|
|
}
|
|
t->setResponse(200);
|
|
}
|
|
|
|
bool YateSIPEndPoint::generic(SIPEvent* e, SIPTransaction* t)
|
|
{
|
|
String meth(t->getMethod());
|
|
meth.toLower();
|
|
String user;
|
|
if (s_cfg.getBoolValue("methods",meth,true)) {
|
|
int age = t->authUser(user);
|
|
DDebug(&plugin,DebugAll,"User '%s' age %d",user.c_str(),age);
|
|
if ((age < 0) || (age > 10)) {
|
|
t->requestAuth(s_realm,"",age >= 0);
|
|
return true;
|
|
}
|
|
}
|
|
|
|
const SIPMessage* message = e->getMessage();
|
|
Message m("sip." + meth);
|
|
if (message->getParam("To","tag")) {
|
|
SIPDialog dlg(*message);
|
|
YateSIPConnection* conn = plugin.findDialog(dlg);
|
|
if (conn) {
|
|
m.userData(conn);
|
|
conn->complete(m);
|
|
}
|
|
}
|
|
if (user)
|
|
m.addParam("username",user);
|
|
m.addParam("ip_host",message->getParty()->getPartyAddr());
|
|
m.addParam("ip_port",String(message->getParty()->getPartyPort()));
|
|
m.addParam("sip_uri",t->getURI());
|
|
m.addParam("sip_callid",t->getCallID());
|
|
// establish the dialog here so user code will have the dialog tag handy
|
|
t->setDialogTag();
|
|
m.addParam("xsip_dlgtag",t->getDialogTag());
|
|
copySipHeaders(m,*message);
|
|
|
|
if (Engine::dispatch(m)) {
|
|
t->setResponse(m.getIntValue("code",200));
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
// Incoming call constructor - just before starting the routing thread
|
|
YateSIPConnection::YateSIPConnection(SIPEvent* ev, SIPTransaction* tr)
|
|
: Channel(plugin,0,false),
|
|
m_tr(tr), m_tr2(0), m_hungup(false), m_byebye(true),
|
|
m_state(Incoming), m_rtpForward(false), m_sdpForward(false), m_rtpMedia(0),
|
|
m_sdpSession(0), m_sdpVersion(0), m_port(0), m_route(0), m_routes(0),
|
|
m_authBye(true), m_mediaStatus(MediaMissing), m_inband(s_inband)
|
|
{
|
|
Debug(this,DebugAll,"YateSIPConnection::YateSIPConnection(%p,%p) [%p]",ev,tr,this);
|
|
setReason();
|
|
m_tr->ref();
|
|
m_routes = m_tr->initialMessage()->getRoutes();
|
|
m_callid = m_tr->getCallID();
|
|
m_dialog = *m_tr->initialMessage();
|
|
m_host = m_tr->initialMessage()->getParty()->getPartyAddr();
|
|
m_port = m_tr->initialMessage()->getParty()->getPartyPort();
|
|
m_address << m_host << ":" << m_port;
|
|
filterDebug(m_address);
|
|
m_uri = m_tr->initialMessage()->getHeader("From");
|
|
m_uri.parse();
|
|
m_tr->setUserData(this);
|
|
|
|
URI uri(m_tr->getURI());
|
|
YateSIPLine* line = plugin.findLine(m_host,m_port,m_uri.getUser());
|
|
Message *m = message("call.preroute");
|
|
m->addParam("caller",m_uri.getUser());
|
|
m->addParam("called",uri.getUser());
|
|
if (m_uri.getDescription())
|
|
m->addParam("callername",m_uri.getDescription());
|
|
const SIPHeaderLine* hl = m_tr->initialMessage()->getHeader("Call-Info");
|
|
if (hl) {
|
|
const NamedString* type = hl->getParam("purpose");
|
|
if (!type || *type == "info")
|
|
m->addParam("caller_info_uri",*type);
|
|
else if (*type == "icon")
|
|
m->addParam("caller_icon_uri",*type);
|
|
else if (*type == "card")
|
|
m->addParam("caller_card_uri",*type);
|
|
}
|
|
|
|
if (line) {
|
|
// call comes from line we have registered to - trust it...
|
|
m_user = line->getUserName();
|
|
m_externalAddr = line->getLocalAddr();
|
|
m_line = *line;
|
|
m->addParam("username",m_user);
|
|
m->addParam("in_line",m_line);
|
|
}
|
|
else {
|
|
String user;
|
|
int age = tr->authUser(user,false,m);
|
|
DDebug(this,DebugAll,"User '%s' age %d",user.c_str(),age);
|
|
if (age >= 0) {
|
|
if (age < 10) {
|
|
m_user = user;
|
|
m->addParam("username",m_user);
|
|
}
|
|
else
|
|
m->addParam("expired_user",user);
|
|
m->addParam("xsip_nonce_age",String(age));
|
|
}
|
|
}
|
|
if (s_privacy)
|
|
copyPrivacy(*m,*ev->getMessage());
|
|
|
|
String tmp(ev->getMessage()->getHeaderValue("Max-Forwards"));
|
|
int maxf = tmp.toInteger(s_maxForwards);
|
|
if (maxf > s_maxForwards)
|
|
maxf = s_maxForwards;
|
|
tmp = maxf-1;
|
|
m->addParam("antiloop",tmp);
|
|
m->addParam("ip_host",m_host);
|
|
m->addParam("ip_port",String(m_port));
|
|
m->addParam("sip_uri",uri);
|
|
m->addParam("sip_from",m_uri);
|
|
m->addParam("sip_to",ev->getMessage()->getHeaderValue("To"));
|
|
m->addParam("sip_callid",m_callid);
|
|
m->addParam("device",ev->getMessage()->getHeaderValue("User-Agent"));
|
|
copySipHeaders(*m,*ev->getMessage());
|
|
if (ev->getMessage()->body && ev->getMessage()->body->isSDP()) {
|
|
setMedia(parseSDP(static_cast<SDPBody*>(ev->getMessage()->body),m_rtpAddr,m_rtpMedia));
|
|
if (m_rtpMedia) {
|
|
m_rtpForward = true;
|
|
// guess if the call comes from behind a NAT
|
|
bool nat = isNatBetween(m_rtpAddr,m_host);
|
|
if (m->getBoolValue("nat_support",s_auto_nat && nat)) {
|
|
Debug(this,DebugInfo,"RTP NAT detected: private '%s' public '%s'",
|
|
m_rtpAddr.c_str(),m_host.c_str());
|
|
m->addParam("rtp_nat_addr",m_rtpAddr);
|
|
m_rtpAddr = m_host;
|
|
}
|
|
m->addParam("rtp_addr",m_rtpAddr);
|
|
ObjList* l = m_rtpMedia->skipNull();
|
|
for (; l; l = l->skipNext()) {
|
|
RtpMedia* r = static_cast<RtpMedia*>(l->get());
|
|
m->addParam("media"+r->suffix(),"yes");
|
|
m->addParam("rtp_port"+r->suffix(),r->remotePort());
|
|
m->addParam("formats"+r->suffix(),r->formats());
|
|
}
|
|
}
|
|
if (s_forward_sdp) {
|
|
const DataBlock& raw = ev->getMessage()->body->getBody();
|
|
String tmp((const char*)raw.data(),raw.length());
|
|
m->addParam("sdp_raw",tmp);
|
|
m_rtpForward = true;
|
|
}
|
|
if (m_rtpForward)
|
|
m->addParam("rtp_forward","possible");
|
|
}
|
|
DDebug(this,DebugAll,"RTP addr '%s' [%p]",m_rtpAddr.c_str(),this);
|
|
m_route = m;
|
|
Message* s = message("chan.startup");
|
|
s->addParam("caller",m_uri.getUser());
|
|
s->addParam("called",uri.getUser());
|
|
if (m_user)
|
|
s->addParam("username",m_user);
|
|
Engine::enqueue(s);
|
|
}
|
|
|
|
// Outgoing call constructor - in call.execute handler
|
|
YateSIPConnection::YateSIPConnection(Message& msg, const String& uri, const char* target)
|
|
: Channel(plugin,0,true),
|
|
m_tr(0), m_tr2(0), m_hungup(false), m_byebye(true),
|
|
m_state(Outgoing), m_rtpForward(false), m_sdpForward(false), m_rtpMedia(0),
|
|
m_sdpSession(0), m_sdpVersion(0), m_port(0), m_route(0), m_routes(0),
|
|
m_authBye(false), m_mediaStatus(MediaMissing), m_inband(s_inband)
|
|
{
|
|
Debug(this,DebugAll,"YateSIPConnection::YateSIPConnection(%p,'%s') [%p]",
|
|
&msg,uri.c_str(),this);
|
|
m_targetid = target;
|
|
setReason();
|
|
m_inband = msg.getBoolValue("dtmfinband",s_inband);
|
|
m_rtpForward = msg.getBoolValue("rtp_forward");
|
|
m_line = msg.getValue("line");
|
|
String tmp;
|
|
YateSIPLine* line = 0;
|
|
if (m_line) {
|
|
line = plugin.findLine(m_line);
|
|
if (line && (uri.find('@') < 0)) {
|
|
if (!uri.startsWith("sip:"))
|
|
tmp = "sip:";
|
|
tmp << uri << "@" << line->domain();
|
|
}
|
|
if (line)
|
|
m_externalAddr = line->getLocalAddr();
|
|
}
|
|
if (tmp.null())
|
|
tmp = uri;
|
|
m_uri = tmp;
|
|
m_uri.parse();
|
|
SIPMessage* m = new SIPMessage("INVITE",m_uri);
|
|
plugin.ep()->buildParty(m,msg.getValue("host"),msg.getIntValue("port"),line);
|
|
if (!m->getParty()) {
|
|
Debug(this,DebugWarn,"Could not create party for '%s' [%p]",m_uri.c_str(),this);
|
|
m->destruct();
|
|
tmp = "Invalid address: ";
|
|
tmp << m_uri;
|
|
msg.setParam("reason",tmp);
|
|
setReason(tmp);
|
|
return;
|
|
}
|
|
int maxf = msg.getIntValue("antiloop",s_maxForwards);
|
|
m->addHeader("Max-Forwards",String(maxf));
|
|
copySipHeaders(*m,msg,"osip_");
|
|
String caller = msg.getValue("caller",(line ? line->getUserName().c_str() : (const char*)0));
|
|
String display = msg.getValue("callername",(line ? line->getFullName().c_str() : (const char*)0));
|
|
m->complete(plugin.ep()->engine(),
|
|
caller,
|
|
msg.getValue("domain",(line ? line->domain().c_str() : (const char*)0)));
|
|
if (display) {
|
|
String desc;
|
|
desc << "\"" << display << "\" ";
|
|
SIPHeaderLine* hl = const_cast<SIPHeaderLine*>(m->getHeader("From"));
|
|
if (hl)
|
|
*hl = desc + *hl;
|
|
}
|
|
if (msg.getParam("calledname")) {
|
|
String desc;
|
|
desc << "\"" << msg.getValue("calledname") << "\" ";
|
|
SIPHeaderLine* hl = const_cast<SIPHeaderLine*>(m->getHeader("To"));
|
|
if (hl)
|
|
*hl = desc + *hl;
|
|
}
|
|
if (plugin.ep()->engine()->prack())
|
|
m->addHeader("Supported","100rel");
|
|
m_host = m->getParty()->getPartyAddr();
|
|
m_port = m->getParty()->getPartyPort();
|
|
m_address << m_host << ":" << m_port;
|
|
filterDebug(m_address);
|
|
m_dialog = *m;
|
|
if (s_privacy)
|
|
copyPrivacy(*m,msg);
|
|
|
|
// add some Call-Info headers
|
|
const char* info = msg.getValue("caller_info_uri");
|
|
if (info) {
|
|
SIPHeaderLine* hl = new SIPHeaderLine("Call-Info",info);
|
|
hl->setParam("purpose","info");
|
|
m->addHeader(hl);
|
|
}
|
|
info = msg.getValue("caller_icon_uri");
|
|
if (info) {
|
|
SIPHeaderLine* hl = new SIPHeaderLine("Call-Info",info);
|
|
hl->setParam("purpose","icon");
|
|
m->addHeader(hl);
|
|
}
|
|
info = msg.getValue("caller_card_uri");
|
|
if (info) {
|
|
SIPHeaderLine* hl = new SIPHeaderLine("Call-Info",info);
|
|
hl->setParam("purpose","card");
|
|
m->addHeader(hl);
|
|
}
|
|
|
|
SDPBody* sdp = createPasstroughSDP(msg);
|
|
if (!sdp)
|
|
sdp = createRtpSDP(m_host,msg);
|
|
m->setBody(sdp);
|
|
m_tr = plugin.ep()->engine()->addMessage(m);
|
|
if (m_tr) {
|
|
m_tr->ref();
|
|
m_callid = m_tr->getCallID();
|
|
m_tr->setUserData(this);
|
|
}
|
|
m->deref();
|
|
setMaxcall(msg);
|
|
Message* s = message("chan.startup");
|
|
s->setParam("caller",caller);
|
|
s->setParam("called",msg.getValue("called"));
|
|
s->setParam("billid",msg.getValue("billid"));
|
|
s->setParam("username",msg.getValue("username"));
|
|
s->setParam("calledfull",m_uri.getUser());
|
|
Engine::enqueue(s);
|
|
}
|
|
|
|
YateSIPConnection::~YateSIPConnection()
|
|
{
|
|
Debug(this,DebugAll,"YateSIPConnection::~YateSIPConnection() [%p]",this);
|
|
hangup();
|
|
clearTransaction();
|
|
setMedia(0);
|
|
if (m_route) {
|
|
delete m_route;
|
|
m_route = 0;
|
|
}
|
|
if (m_routes) {
|
|
delete m_routes;
|
|
m_routes = 0;
|
|
}
|
|
}
|
|
|
|
void YateSIPConnection::setMedia(ObjList* media)
|
|
{
|
|
if (media == m_rtpMedia)
|
|
return;
|
|
ObjList* tmp = m_rtpMedia;
|
|
m_rtpMedia = media;
|
|
if (tmp) {
|
|
ObjList* l = tmp->skipNull();
|
|
for (; l; l = l->skipNext()) {
|
|
RtpMedia* m = static_cast<RtpMedia*>(l->get());
|
|
clearEndpoint(*m);
|
|
}
|
|
tmp->destruct();
|
|
}
|
|
}
|
|
|
|
void YateSIPConnection::startRouter()
|
|
{
|
|
Message* m = m_route;
|
|
m_route = 0;
|
|
Channel::startRouter(m);
|
|
}
|
|
|
|
void YateSIPConnection::clearTransaction()
|
|
{
|
|
if (!(m_tr || m_tr2))
|
|
return;
|
|
Lock lock(driver());
|
|
if (m_tr) {
|
|
m_tr->setUserData(0);
|
|
if (m_tr->isIncoming()) {
|
|
if (m_tr->setResponse(m_reasonCode,m_reason.null() ? "Request Terminated" : m_reason.c_str()))
|
|
m_byebye = false;
|
|
}
|
|
m_tr->deref();
|
|
m_tr = 0;
|
|
}
|
|
// cancel any pending reINVITE
|
|
if (m_tr2) {
|
|
m_tr2->setUserData(0);
|
|
if (m_tr2->isIncoming())
|
|
m_tr2->setResponse(487);
|
|
m_tr2->deref();
|
|
m_tr2 = 0;
|
|
}
|
|
}
|
|
|
|
void YateSIPConnection::detachTransaction2()
|
|
{
|
|
if (m_tr2) {
|
|
m_tr2->setUserData(0);
|
|
m_tr2->deref();
|
|
m_tr2 = 0;
|
|
}
|
|
}
|
|
|
|
void YateSIPConnection::hangup()
|
|
{
|
|
if (m_hungup)
|
|
return;
|
|
m_hungup = true;
|
|
const char* error = lookup(m_reasonCode,dict_errors);
|
|
Debug(this,DebugAll,"YateSIPConnection::hangup() state=%d trans=%p error='%s' code=%d reason='%s' [%p]",
|
|
m_state,m_tr,error,m_reasonCode,m_reason.c_str(),this);
|
|
Message* m = message("chan.hangup");
|
|
if (m_reason)
|
|
m->addParam("reason",m_reason);
|
|
Engine::enqueue(m);
|
|
switch (m_state) {
|
|
case Cleared:
|
|
clearTransaction();
|
|
return;
|
|
case Incoming:
|
|
if (m_tr) {
|
|
clearTransaction();
|
|
return;
|
|
}
|
|
break;
|
|
case Outgoing:
|
|
case Ringing:
|
|
if (m_tr) {
|
|
SIPMessage* m = new SIPMessage("CANCEL",m_uri);
|
|
plugin.ep()->buildParty(m,m_host,m_port,plugin.findLine(m_line));
|
|
if (!m->getParty())
|
|
Debug(this,DebugWarn,"Could not create party for '%s:%d' [%p]",
|
|
m_host.c_str(),m_port,this);
|
|
else {
|
|
const SIPMessage* i = m_tr->initialMessage();
|
|
m->copyHeader(i,"Via");
|
|
m->copyHeader(i,"From");
|
|
m->copyHeader(i,"To");
|
|
m->copyHeader(i,"Call-ID");
|
|
String tmp;
|
|
tmp << i->getCSeq() << " CANCEL";
|
|
m->addHeader("CSeq",tmp);
|
|
plugin.ep()->engine()->addMessage(m);
|
|
}
|
|
m->deref();
|
|
}
|
|
break;
|
|
}
|
|
clearTransaction();
|
|
m_state = Cleared;
|
|
|
|
if (m_byebye) {
|
|
m_byebye = false;
|
|
SIPMessage* m = createDlgMsg("BYE");
|
|
if (m) {
|
|
if (m_reason) {
|
|
// FIXME: add SIP and Q.850 cause codes, set the proper reason
|
|
SIPHeaderLine* hl = new SIPHeaderLine("Reason","SIP");
|
|
hl->setParam("text","\"" + m_reason + "\"");
|
|
m->addHeader(hl);
|
|
}
|
|
plugin.ep()->engine()->addMessage(m);
|
|
m->deref();
|
|
}
|
|
}
|
|
if (!error)
|
|
error = m_reason.c_str();
|
|
disconnect(error);
|
|
}
|
|
|
|
// Creates a new message in an existing dialog
|
|
SIPMessage* YateSIPConnection::createDlgMsg(const char* method, const char* uri)
|
|
{
|
|
if (!uri)
|
|
uri = m_uri;
|
|
SIPMessage* m = new SIPMessage(method,uri);
|
|
m->addRoutes(m_routes);
|
|
plugin.ep()->buildParty(m,m_host,m_port,plugin.findLine(m_line));
|
|
if (!m->getParty()) {
|
|
Debug(this,DebugWarn,"Could not create party for '%s:%d' [%p]",
|
|
m_host.c_str(),m_port,this);
|
|
m->destruct();
|
|
return 0;
|
|
}
|
|
m->addHeader("Call-ID",m_callid);
|
|
String tmp;
|
|
tmp << "<" << m_dialog.localURI << ">";
|
|
SIPHeaderLine* hl = new SIPHeaderLine("From",tmp);
|
|
tmp = m_dialog.localTag;
|
|
if (tmp.null() && m_tr)
|
|
tmp = m_tr->getDialogTag();
|
|
if (tmp)
|
|
hl->setParam("tag",tmp);
|
|
m->addHeader(hl);
|
|
tmp.clear();
|
|
tmp << "<" << m_dialog.remoteURI << ">";
|
|
hl = new SIPHeaderLine("To",tmp);
|
|
tmp = m_dialog.remoteTag;
|
|
if (tmp.null() && m_tr)
|
|
tmp = m_tr->getDialogTag();
|
|
if (tmp)
|
|
hl->setParam("tag",tmp);
|
|
m->addHeader(hl);
|
|
if (m_tr && m_tr->initialMessage())
|
|
m->copyHeader(m_tr->initialMessage(),"Contact");
|
|
return m;
|
|
}
|
|
|
|
// Emit a PRovisional ACK if enabled in the engine
|
|
bool YateSIPConnection::emitPRACK(const SIPMessage* msg)
|
|
{
|
|
if (!plugin.ep()->engine()->prack())
|
|
return false;
|
|
if (!(msg && msg->isAnswer() && (msg->code > 100) && (msg->code < 200)))
|
|
return false;
|
|
const SIPHeaderLine* rs = msg->getHeader("RSeq");
|
|
const SIPHeaderLine* cs = msg->getHeader("CSeq");
|
|
if (!(rs && cs))
|
|
return false;
|
|
String tmp;
|
|
const SIPHeaderLine* co = msg->getHeader("Contact");
|
|
if (co) {
|
|
tmp = *co;
|
|
Regexp r("^[^<]*<\\([^>]*\\)>.*$");
|
|
if (tmp.matches(r))
|
|
tmp = tmp.matchString(1);
|
|
}
|
|
SIPMessage* m = createDlgMsg("PRACK",tmp);
|
|
if (!m)
|
|
return false;
|
|
tmp = *rs;
|
|
tmp << " " << *cs;
|
|
m->addHeader("RAck",tmp);
|
|
plugin.ep()->engine()->addMessage(m);
|
|
m->deref();
|
|
return true;
|
|
}
|
|
|
|
// Creates a SDP for provisional (1xx) messages
|
|
SDPBody* YateSIPConnection::createProvisionalSDP(Message& msg)
|
|
{
|
|
if (m_rtpForward)
|
|
return createPasstroughSDP(msg);
|
|
// check if our peer can source at least audio data
|
|
if (!(getPeer() && getPeer()->getSource() && msg.getBoolValue("earlymedia",true)))
|
|
return 0;
|
|
if (m_rtpAddr.null())
|
|
return 0;
|
|
return createRtpSDP(true);
|
|
}
|
|
|
|
// Creates a SDP from RTP address data present in message
|
|
SDPBody* YateSIPConnection::createPasstroughSDP(Message& msg, bool update)
|
|
{
|
|
String tmp = msg.getValue("rtp_forward");
|
|
msg.clearParam("rtp_forward");
|
|
if (!(m_rtpForward && tmp.toBoolean()))
|
|
return 0;
|
|
String* raw = msg.getParam("sdp_raw");
|
|
if (raw) {
|
|
m_sdpForward = m_sdpForward || s_forward_sdp;
|
|
if (m_sdpForward) {
|
|
msg.setParam("rtp_forward","accepted");
|
|
return new SDPBody("application/sdp",raw->safe(),raw->length());
|
|
}
|
|
}
|
|
String addr(msg.getValue("rtp_addr"));
|
|
if (addr.null())
|
|
return 0;
|
|
|
|
ObjList* lst = 0;
|
|
unsigned int n = msg.length();
|
|
for (unsigned int i = 0; i < n; i++) {
|
|
const NamedString* p = msg.getParam(i);
|
|
if (!p)
|
|
continue;
|
|
// search for rtp_port or rtp_port_MEDIANAME parameters
|
|
tmp = p->name();
|
|
if (!tmp.startSkip("rtp_port",false))
|
|
continue;
|
|
if (tmp && (tmp[0] != '_'))
|
|
continue;
|
|
// now tmp holds the suffix for the media, null for audio
|
|
bool audio = tmp.null();
|
|
// check if media is supported, default only for audio
|
|
if (!msg.getBoolValue("media"+tmp,audio))
|
|
continue;
|
|
int port = p->toInteger();
|
|
if (!port)
|
|
continue;
|
|
const char* fmts = msg.getValue("formats"+tmp);
|
|
if (!fmts)
|
|
continue;
|
|
if (audio)
|
|
tmp = "audio";
|
|
else
|
|
tmp >> "_";
|
|
RtpMedia* rtp = 0;
|
|
// try to take the media descriptor from the old list
|
|
if (update && m_rtpMedia) {
|
|
ObjList* om = m_rtpMedia->find(tmp);
|
|
if (om)
|
|
rtp = static_cast<RtpMedia*>(om->remove(false));
|
|
}
|
|
if (rtp)
|
|
rtp->update(fmts,-1,port);
|
|
else
|
|
rtp = new RtpMedia(tmp,fmts,-1,port);
|
|
if (!lst)
|
|
lst = new ObjList;
|
|
lst->append(rtp);
|
|
}
|
|
if (!lst)
|
|
return 0;
|
|
|
|
SDPBody* sdp = createSDP(addr,lst);
|
|
if (update) {
|
|
m_rtpLocalAddr = addr;
|
|
setMedia(lst);
|
|
}
|
|
else
|
|
lst->destruct();
|
|
|
|
if (sdp)
|
|
msg.setParam("rtp_forward","accepted");
|
|
return sdp;
|
|
}
|
|
|
|
// Dispatches a RTP message for a media, optionally start RTP and pick parameters
|
|
bool YateSIPConnection::dispatchRtp(RtpMedia* media, const char* addr, bool start, bool pick)
|
|
{
|
|
if (!(media && addr))
|
|
return false;
|
|
Message m("chan.rtp");
|
|
complete(m,true);
|
|
m.userData(static_cast<CallEndpoint *>(this));
|
|
m.addParam("media",*media);
|
|
m.addParam("direction","bidir");
|
|
if (m_rtpLocalAddr)
|
|
m.addParam("localip",m_rtpLocalAddr);
|
|
m.addParam("remoteip",addr);
|
|
if (start) {
|
|
m.addParam("remoteport",media->remotePort());
|
|
m.addParam("format",media->format());
|
|
}
|
|
if (!Engine::dispatch(m))
|
|
return false;
|
|
if (!pick)
|
|
return true;
|
|
m_rtpForward = false;
|
|
m_rtpLocalAddr = m.getValue("localip",m_rtpLocalAddr);
|
|
m_mediaStatus = MediaStarted;
|
|
media->update(m,start);
|
|
return true;
|
|
}
|
|
|
|
// Creates a set of unstarted external RTP channels from remote addr and builds SDP from them
|
|
SDPBody* YateSIPConnection::createRtpSDP(const char* addr, const Message& msg)
|
|
{
|
|
|
|
bool defaults = true;
|
|
ObjList* lst = 0;
|
|
unsigned int n = msg.length();
|
|
for (unsigned int i = 0; i < n; i++) {
|
|
const NamedString* p = msg.getParam(i);
|
|
if (!p)
|
|
continue;
|
|
// search for rtp_port or rtp_port_MEDIANAME parameters
|
|
String tmp(p->name());
|
|
if (!tmp.startSkip("media",false))
|
|
continue;
|
|
if (tmp && (tmp[0] != '_'))
|
|
continue;
|
|
// since we found at least one media declaration disable defaults
|
|
defaults = false;
|
|
// now tmp holds the suffix for the media, null for audio
|
|
bool audio = tmp.null();
|
|
// check if media is supported, default only for audio
|
|
if (!p->toBoolean(audio))
|
|
continue;
|
|
const char* fmts = msg.getValue("formats"+tmp);
|
|
if (audio && !fmts)
|
|
fmts = "alaw,mulaw";
|
|
if (!fmts)
|
|
continue;
|
|
if (audio)
|
|
tmp = "audio";
|
|
else
|
|
tmp >> "_";
|
|
RtpMedia* rtp = 0;
|
|
// try to take the media descriptor from the old list
|
|
if (m_rtpMedia) {
|
|
ObjList* om = m_rtpMedia->find(tmp);
|
|
if (om)
|
|
rtp = static_cast<RtpMedia*>(om->remove(false));
|
|
}
|
|
if (rtp)
|
|
rtp->update(fmts);
|
|
else
|
|
rtp = new RtpMedia(tmp,fmts);
|
|
if (!lst)
|
|
lst = new ObjList;
|
|
lst->append(rtp);
|
|
}
|
|
|
|
if (defaults && !lst) {
|
|
lst = new ObjList;
|
|
lst->append(new RtpMedia("audio",msg.getValue("formats","alaw,mulaw")));
|
|
}
|
|
|
|
setMedia(lst);
|
|
|
|
ObjList* l = m_rtpMedia->skipNull();
|
|
for (; l; l = l->skipNext()) {
|
|
RtpMedia* m = static_cast<RtpMedia*>(l->get());
|
|
if (!dispatchRtp(m,addr,false,true))
|
|
return 0;
|
|
}
|
|
return createSDP(getRtpAddr());
|
|
}
|
|
|
|
// Creates a set of started external RTP channels from remote addr and builds SDP from them
|
|
SDPBody* YateSIPConnection::createRtpSDP(bool start)
|
|
{
|
|
if (m_rtpAddr.null()) {
|
|
m_mediaStatus = MediaMuted;
|
|
return createSDP(0);
|
|
}
|
|
|
|
ObjList* l = m_rtpMedia->skipNull();
|
|
for (; l; l = l->skipNext()) {
|
|
RtpMedia* m = static_cast<RtpMedia*>(l->get());
|
|
if (!dispatchRtp(m,m_rtpAddr,start,true))
|
|
return 0;
|
|
}
|
|
return createSDP(getRtpAddr());
|
|
}
|
|
|
|
// Starts an already created set of external RTP channels
|
|
bool YateSIPConnection::startRtp()
|
|
{
|
|
if (m_mediaStatus != MediaStarted)
|
|
return false;
|
|
DDebug(this,DebugAll,"YateSIPConnection::startRtp() [%p]",this);
|
|
|
|
bool ok = true;
|
|
ObjList* l = m_rtpMedia->skipNull();
|
|
for (; l; l = l->skipNext()) {
|
|
RtpMedia* m = static_cast<RtpMedia*>(l->get());
|
|
ok = dispatchRtp(m,m_rtpAddr,true,false) && ok;
|
|
}
|
|
return ok;
|
|
}
|
|
|
|
// Creates a SDP body from transport address and list of media descriptors
|
|
SDPBody* YateSIPConnection::createSDP(const char* addr, ObjList* mediaList)
|
|
{
|
|
DDebug(this,DebugAll,"YateSIPConnection::createSDP('%s',%p) [%p]",
|
|
addr,mediaList,this);
|
|
if (!mediaList)
|
|
mediaList = m_rtpMedia;
|
|
// if we got no media descriptors we simply create no SDP
|
|
if (!mediaList)
|
|
return 0;
|
|
if (m_sdpSession)
|
|
++m_sdpVersion;
|
|
else
|
|
m_sdpVersion = m_sdpSession = Time::secNow();
|
|
|
|
// no address means on hold or muted
|
|
String origin;
|
|
origin << "yate " << m_sdpSession << " " << m_sdpVersion << " IN IP4 " << (addr ? addr : m_host.safe());
|
|
String conn;
|
|
conn << "IN IP4 " << (addr ? addr : "0.0.0.0");
|
|
|
|
SDPBody* sdp = new SDPBody;
|
|
sdp->addLine("v","0");
|
|
sdp->addLine("o",origin);
|
|
sdp->addLine("s","SIP Call");
|
|
sdp->addLine("c",conn);
|
|
sdp->addLine("t","0 0");
|
|
|
|
bool defcodecs = s_cfg.getBoolValue("codecs","default",true);
|
|
for (ObjList* ml = mediaList->skipNull(); ml; ml = ml->skipNext()) {
|
|
RtpMedia* m = static_cast<RtpMedia*>(ml->get());
|
|
|
|
String frm(m->fmtList());
|
|
ObjList* l = frm.split(',',false);
|
|
frm = *m;
|
|
frm << " " << (m->localPort() ? m->localPort().c_str() : "0") << " RTP/AVP";
|
|
ObjList rtpmap;
|
|
int ptime = 0;
|
|
ObjList* f = l;
|
|
for (; f; f = f->next()) {
|
|
String* s = static_cast<String*>(f->get());
|
|
if (s) {
|
|
int mode = 0;
|
|
if (*s == "ilbc20")
|
|
ptime = mode = 20;
|
|
else if (*s == "ilbc30")
|
|
ptime = mode = 30;
|
|
int payload = s->toInteger(dict_payloads,-1);
|
|
if (payload >= 0) {
|
|
const char* map = lookup(payload,dict_rtpmap);
|
|
if (map && s_cfg.getBoolValue("codecs",*s,defcodecs && DataTranslator::canConvert(*s))) {
|
|
frm << " " << payload;
|
|
String* temp = new String("rtpmap:");
|
|
*temp << payload << " " << map;
|
|
rtpmap.append(temp);
|
|
if (mode) {
|
|
temp = new String("fmtp:");
|
|
*temp << payload << " mode=" << mode;
|
|
rtpmap.append(temp);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
delete l;
|
|
|
|
if (*m == "audio") {
|
|
// always claim to support telephone events
|
|
frm << " 101";
|
|
rtpmap.append(new String("rtpmap:101 telephone-event/8000"));
|
|
}
|
|
|
|
if (ptime) {
|
|
String* temp = new String("ptime:");
|
|
*temp << ptime;
|
|
rtpmap.append(temp);
|
|
}
|
|
|
|
sdp->addLine("m",frm);
|
|
for (f = rtpmap.skipNull(); f; f = f->skipNext()) {
|
|
String* s = static_cast<String*>(f->get());
|
|
if (s)
|
|
sdp->addLine("a",*s);
|
|
}
|
|
}
|
|
|
|
return sdp;
|
|
}
|
|
|
|
// Add raw SDP forwarding parameter to a message
|
|
bool YateSIPConnection::addSdpParams(Message& msg, const SIPBody* body)
|
|
{
|
|
if (m_sdpForward && body && body->isSDP()) {
|
|
const DataBlock& raw = body->getBody();
|
|
String tmp((const char*)raw.data(),raw.length());
|
|
msg.setParam("rtp_forward","yes");
|
|
msg.addParam("sdp_raw",tmp);
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
// Add RTP forwarding parameters to a message
|
|
bool YateSIPConnection::addRtpParams(Message& msg, const String& natAddr, const SIPBody* body)
|
|
{
|
|
if (!(m_rtpMedia && m_rtpAddr))
|
|
return false;
|
|
ObjList* l = m_rtpMedia->skipNull();
|
|
for (; l; l = l->skipNext()) {
|
|
RtpMedia* m = static_cast<RtpMedia*>(l->get());
|
|
msg.addParam("formats"+m->suffix(),m->formats());
|
|
msg.addParam("media"+m->suffix(),"yes");
|
|
}
|
|
if (!startRtp() && m_rtpForward) {
|
|
if (natAddr)
|
|
msg.addParam("rtp_nat_addr",natAddr);
|
|
msg.addParam("rtp_forward","yes");
|
|
msg.addParam("rtp_addr",m_rtpAddr);
|
|
l = m_rtpMedia->skipNull();
|
|
for (; l; l = l->skipNext()) {
|
|
RtpMedia* m = static_cast<RtpMedia*>(l->get());
|
|
msg.addParam("rtp_port"+m->suffix(),m->remotePort());
|
|
}
|
|
addSdpParams(msg,body);
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
// Process SIP events belonging to this connection
|
|
bool YateSIPConnection::process(SIPEvent* ev)
|
|
{
|
|
DDebug(this,DebugInfo,"YateSIPConnection::process(%p) %s [%p]",
|
|
ev,SIPTransaction::stateName(ev->getState()),this);
|
|
const SIPMessage* msg = ev->getMessage();
|
|
int code = ev->getTransaction()->getResponseCode();
|
|
if (ev->getTransaction() == m_tr2) {
|
|
// reINVITE transaction
|
|
if (ev->getState() == SIPTransaction::Cleared) {
|
|
detachTransaction2();
|
|
Message* m = message("call.update");
|
|
m->addParam("operation","reject");
|
|
m->addParam("error","timeout");
|
|
Engine::enqueue(m);
|
|
return false;
|
|
}
|
|
if (!msg || msg->isOutgoing() || !msg->isAnswer())
|
|
return false;
|
|
if (code < 200)
|
|
return false;
|
|
Message* m = message("call.update");
|
|
if (code < 300) {
|
|
m->addParam("operation","notify");
|
|
String natAddr;
|
|
if (msg->body && msg->body->isSDP()) {
|
|
DDebug(this,DebugInfo,"YateSIPConnection got SDP [%p]",this);
|
|
setMedia(parseSDP(static_cast<SDPBody*>(msg->body),m_rtpAddr,m_rtpMedia));
|
|
// guess if the call comes from behind a NAT
|
|
if (s_auto_nat && isNatBetween(m_rtpAddr,m_host)) {
|
|
Debug(this,DebugInfo,"RTP NAT detected: private '%s' public '%s'",
|
|
m_rtpAddr.c_str(),m_host.c_str());
|
|
natAddr = m_rtpAddr;
|
|
m_rtpAddr = m_host;
|
|
}
|
|
DDebug(this,DebugAll,"RTP addr '%s' [%p]",m_rtpAddr.c_str(),this);
|
|
}
|
|
if (!addRtpParams(*m,natAddr,msg->body))
|
|
addSdpParams(*m,msg->body);
|
|
Engine::enqueue(m);
|
|
}
|
|
else {
|
|
m->addParam("operation","reject");
|
|
m->addParam("error",lookup(code,dict_errors,"failure"));
|
|
m->addParam("reason",msg->reason);
|
|
}
|
|
detachTransaction2();
|
|
Engine::enqueue(m);
|
|
return false;
|
|
}
|
|
m_dialog = *ev->getTransaction()->recentMessage();
|
|
if (msg && !msg->isOutgoing() && msg->isAnswer() && (code >= 300)) {
|
|
setReason(msg->reason,code);
|
|
hangup();
|
|
}
|
|
if (!ev->isActive()) {
|
|
if (m_tr) {
|
|
DDebug(this,DebugInfo,"YateSIPConnection clearing transaction %p [%p]",
|
|
m_tr,this);
|
|
m_tr->setUserData(0);
|
|
m_tr->deref();
|
|
m_tr = 0;
|
|
}
|
|
if (m_state != Established)
|
|
hangup();
|
|
return false;
|
|
}
|
|
if (!msg || msg->isOutgoing())
|
|
return false;
|
|
String natAddr;
|
|
if (msg->body && msg->body->isSDP()) {
|
|
DDebug(this,DebugInfo,"YateSIPConnection got SDP [%p]",this);
|
|
setMedia(parseSDP(static_cast<SDPBody*>(msg->body),m_rtpAddr,m_rtpMedia));
|
|
// guess if the call comes from behind a NAT
|
|
if (s_auto_nat && isNatBetween(m_rtpAddr,m_host)) {
|
|
Debug(this,DebugInfo,"RTP NAT detected: private '%s' public '%s'",
|
|
m_rtpAddr.c_str(),m_host.c_str());
|
|
natAddr = m_rtpAddr;
|
|
m_rtpAddr = m_host;
|
|
}
|
|
DDebug(this,DebugAll,"RTP addr '%s' [%p]",m_rtpAddr.c_str(),this);
|
|
}
|
|
if ((!m_routes) && msg->isAnswer() && (msg->code > 100) && (msg->code < 300))
|
|
m_routes = msg->getRoutes();
|
|
if (msg->isAnswer() && ((msg->code / 100) == 2)) {
|
|
const SIPMessage* ack = m_tr->latestMessage();
|
|
if (ack && ack->isACK()) {
|
|
m_uri = ack->uri;
|
|
m_uri.parse();
|
|
}
|
|
setReason("",0);
|
|
setStatus("answered",Established);
|
|
maxcall(0);
|
|
Message *m = message("call.answered");
|
|
addRtpParams(*m,natAddr,msg->body);
|
|
Engine::enqueue(m);
|
|
}
|
|
if ((m_state < Ringing) && msg->isAnswer()) {
|
|
if (msg->code == 180) {
|
|
setStatus("ringing",Ringing);
|
|
Message *m = message("call.ringing");
|
|
addRtpParams(*m,natAddr,msg->body);
|
|
if (m_rtpAddr.null())
|
|
m->addParam("earlymedia","false");
|
|
Engine::enqueue(m);
|
|
}
|
|
if (msg->code == 183) {
|
|
setStatus("progressing");
|
|
Message *m = message("call.progress");
|
|
addRtpParams(*m,natAddr,msg->body);
|
|
if (m_rtpAddr.null())
|
|
m->addParam("earlymedia","false");
|
|
Engine::enqueue(m);
|
|
}
|
|
if ((msg->code > 100) && (msg->code < 200))
|
|
emitPRACK(msg);
|
|
}
|
|
if (msg->isACK()) {
|
|
DDebug(this,DebugInfo,"YateSIPConnection got ACK [%p]",this);
|
|
startRtp();
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void YateSIPConnection::reInvite(SIPTransaction* t)
|
|
{
|
|
if (!checkUser(t))
|
|
return;
|
|
DDebug(this,DebugAll,"YateSIPConnection::reInvite(%p) [%p]",t,this);
|
|
if (m_tr || m_tr2) {
|
|
// another request pending - refuse this one
|
|
t->setResponse(491);
|
|
return;
|
|
}
|
|
// hack: use a while instead of if so we can return or break out of it
|
|
while (t->initialMessage()->body && t->initialMessage()->body->isSDP()) {
|
|
// for pass-trough RTP we need support from our peer
|
|
if (m_rtpForward) {
|
|
String addr;
|
|
String natAddr;
|
|
ObjList* lst = parseSDP(static_cast<SDPBody*>(t->initialMessage()->body),addr);
|
|
if (!lst)
|
|
break;
|
|
// guess if the call comes from behind a NAT
|
|
if (s_auto_nat && isNatBetween(addr,m_host)) {
|
|
Debug(this,DebugInfo,"RTP NAT detected: private '%s' public '%s'",
|
|
addr.c_str(),m_host.c_str());
|
|
natAddr = addr;
|
|
addr = m_host;
|
|
}
|
|
Debug(this,DebugAll,"reINVITE RTP addr '%s'",addr.c_str());
|
|
|
|
Message msg("call.update");
|
|
complete(msg);
|
|
msg.addParam("operation","request");
|
|
copySipHeaders(msg,*t->initialMessage());
|
|
msg.addParam("rtp_forward","yes");
|
|
msg.addParam("rtp_addr",addr);
|
|
if (natAddr)
|
|
msg.addParam("rtp_nat_addr",natAddr);
|
|
ObjList* l = lst->skipNull();
|
|
for (; l; l = l->skipNext()) {
|
|
RtpMedia* r = static_cast<RtpMedia*>(l->get());
|
|
msg.addParam("media"+r->suffix(),"yes");
|
|
msg.addParam("rtp_port"+r->suffix(),r->remotePort());
|
|
msg.addParam("formats"+r->suffix(),r->formats());
|
|
}
|
|
if (m_sdpForward) {
|
|
const DataBlock& raw = t->initialMessage()->body->getBody();
|
|
String tmp((const char*)raw.data(),raw.length());
|
|
msg.addParam("sdp_raw",tmp);
|
|
}
|
|
// if peer doesn't support updates fail the reINVITE
|
|
if (!Engine::dispatch(msg)) {
|
|
t->setResponse(msg.getIntValue("error",dict_errors,488),msg.getValue("reason"));
|
|
return;
|
|
}
|
|
// we remember the request and leave it pending
|
|
t->ref();
|
|
t->setUserData(this);
|
|
m_tr2 = t;
|
|
return;
|
|
}
|
|
// refuse request if we had no media at all before
|
|
if (m_mediaStatus == MediaMissing)
|
|
break;
|
|
String addr;
|
|
ObjList* lst = parseSDP(static_cast<SDPBody*>(t->initialMessage()->body),addr);
|
|
if (!lst)
|
|
break;
|
|
// guess if the call comes from behind a NAT
|
|
if (s_auto_nat && isNatBetween(addr,m_host)) {
|
|
Debug(this,DebugInfo,"RTP NAT detected: private '%s' public '%s'",
|
|
addr.c_str(),m_host.c_str());
|
|
addr = m_host;
|
|
}
|
|
m_rtpAddr = addr;
|
|
setMedia(lst);
|
|
Debug(this,DebugAll,"New RTP addr '%s'",m_rtpAddr.c_str());
|
|
|
|
m_mediaStatus = MediaMissing;
|
|
// let RTP guess again the local interface
|
|
m_rtpLocalAddr.clear();
|
|
// clear all data endpoints - createRtpSDP will build new ones
|
|
clearEndpoint();
|
|
|
|
SIPMessage* m = new SIPMessage(t->initialMessage(), 200);
|
|
SDPBody* sdp = createRtpSDP(true);
|
|
m->setBody(sdp);
|
|
t->setResponse(m);
|
|
m->deref();
|
|
Message* msg = message("call.update");
|
|
msg->addParam("operation","notify");
|
|
msg->addParam("mandatory","false");
|
|
msg->addParam("mute",String::boolText(MediaStarted != m_mediaStatus));
|
|
Engine::enqueue(msg);
|
|
return;
|
|
}
|
|
t->setResponse(488);
|
|
}
|
|
|
|
bool YateSIPConnection::checkUser(SIPTransaction* t, bool refuse)
|
|
{
|
|
if (m_user.null())
|
|
return true;
|
|
int age = t->authUser(m_user);
|
|
if ((age >= 0) && (age <= 10))
|
|
return true;
|
|
DDebug(this,DebugAll,"YateSIPConnection::checkUser(%p) failed, age %d [%p]",t,age,this);
|
|
if (refuse)
|
|
t->requestAuth(s_realm,"",age >= 0);
|
|
return false;
|
|
}
|
|
|
|
void YateSIPConnection::doBye(SIPTransaction* t)
|
|
{
|
|
if (m_authBye && !checkUser(t))
|
|
return;
|
|
DDebug(this,DebugAll,"YateSIPConnection::doBye(%p) [%p]",t,this);
|
|
const SIPHeaderLine* hl = t->initialMessage()->getHeader("Reason");
|
|
if (hl) {
|
|
const NamedString* text = hl->getParam("text");
|
|
if (text)
|
|
m_reason = *text;
|
|
// FIXME: add SIP and Q.850 cause codes
|
|
}
|
|
t->setResponse(200);
|
|
m_byebye = false;
|
|
hangup();
|
|
}
|
|
|
|
void YateSIPConnection::doCancel(SIPTransaction* t)
|
|
{
|
|
#ifdef DEBUG
|
|
// CANCEL cannot be challenged but it may (should?) be authenticated with
|
|
// an old nonce from the transaction that is being cancelled
|
|
if (m_user && (t->authUser(m_user) < 0))
|
|
Debug(&plugin,DebugMild,"User authentication failed for user '%s' but CANCELing anyway [%p]",
|
|
m_user.c_str(),this);
|
|
#endif
|
|
DDebug(this,DebugAll,"YateSIPConnection::doCancel(%p) [%p]",t,this);
|
|
if (m_tr) {
|
|
t->setResponse(200);
|
|
m_byebye = false;
|
|
clearTransaction();
|
|
disconnect("Cancelled");
|
|
}
|
|
else
|
|
t->setResponse(481);
|
|
}
|
|
|
|
void YateSIPConnection::disconnected(bool final, const char *reason)
|
|
{
|
|
Debug(this,DebugAll,"YateSIPConnection::disconnected() '%s' [%p]",reason,this);
|
|
if (reason) {
|
|
int code = lookup(reason,dict_errors);
|
|
if (code)
|
|
setReason(lookup(code,SIPResponses,reason),code);
|
|
else
|
|
setReason(reason);
|
|
}
|
|
Channel::disconnected(final,reason);
|
|
}
|
|
|
|
bool YateSIPConnection::msgProgress(Message& msg)
|
|
{
|
|
Channel::msgProgress(msg);
|
|
if (m_tr && (m_tr->getState() == SIPTransaction::Process)) {
|
|
SIPMessage* m = new SIPMessage(m_tr->initialMessage(), 183);
|
|
m->setBody(createProvisionalSDP(msg));
|
|
m_tr->setResponse(m);
|
|
m->deref();
|
|
}
|
|
setStatus("progressing");
|
|
return true;
|
|
}
|
|
|
|
bool YateSIPConnection::msgRinging(Message& msg)
|
|
{
|
|
Channel::msgRinging(msg);
|
|
if (m_tr && (m_tr->getState() == SIPTransaction::Process)) {
|
|
SIPMessage* m = new SIPMessage(m_tr->initialMessage(), 180);
|
|
m->setBody(createProvisionalSDP(msg));
|
|
m_tr->setResponse(m);
|
|
m->deref();
|
|
}
|
|
setStatus("ringing");
|
|
return true;
|
|
}
|
|
|
|
bool YateSIPConnection::msgAnswered(Message& msg)
|
|
{
|
|
if (m_tr && (m_tr->getState() == SIPTransaction::Process)) {
|
|
SIPMessage* m = new SIPMessage(m_tr->initialMessage(), 200);
|
|
SDPBody* sdp = createPasstroughSDP(msg);
|
|
if (!sdp) {
|
|
m_rtpForward = false;
|
|
// don't start RTP yet, only when we get the ACK
|
|
sdp = createRtpSDP(false);
|
|
}
|
|
m->setBody(sdp);
|
|
m_tr->setResponse(m);
|
|
m->deref();
|
|
}
|
|
setReason("",0);
|
|
setStatus("answered",Established);
|
|
return true;
|
|
}
|
|
|
|
bool YateSIPConnection::msgTone(Message& msg, const char* tone)
|
|
{
|
|
if (m_rtpMedia && (m_mediaStatus == MediaStarted)) {
|
|
ObjList* l = m_rtpMedia->find("audio");
|
|
const RtpMedia* m = static_cast<const RtpMedia*>(l ? l->get() : 0);
|
|
if (m) {
|
|
if (m_inband && dtmfInband(tone))
|
|
return true;
|
|
msg.setParam("targetid",m->id());
|
|
return false;
|
|
}
|
|
}
|
|
// FIXME: when muted or doing RTP forwarding we should use INFO messages
|
|
return false;
|
|
}
|
|
|
|
bool YateSIPConnection::msgText(Message& msg, const char* text)
|
|
{
|
|
if (null(text))
|
|
return false;
|
|
SIPMessage* m = createDlgMsg("MESSAGE");
|
|
if (m) {
|
|
m->setBody(new SIPStringBody("text/plain",text));
|
|
plugin.ep()->engine()->addMessage(m);
|
|
m->deref();
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
bool YateSIPConnection::msgUpdate(Message& msg)
|
|
{
|
|
String* oper = msg.getParam("operation");
|
|
if (!oper || oper->null())
|
|
return false;
|
|
if (*oper == "request") {
|
|
if (m_tr || m_tr2) {
|
|
msg.setParam("error","pending");
|
|
msg.setParam("reason","Another INVITE Pending");
|
|
return false;
|
|
}
|
|
SDPBody* sdp = createPasstroughSDP(msg,false);
|
|
if (!sdp) {
|
|
msg.setParam("error","failure");
|
|
msg.setParam("reason","Could not build the SDP");
|
|
return false;
|
|
}
|
|
SIPMessage* m = createDlgMsg("INVITE");
|
|
copySipHeaders(*m,msg,"osip_");
|
|
if (s_privacy)
|
|
copyPrivacy(*m,msg);
|
|
m->setBody(sdp);
|
|
m_tr2 = plugin.ep()->engine()->addMessage(m);
|
|
if (m_tr2) {
|
|
m_tr2->ref();
|
|
m_tr2->setUserData(this);
|
|
}
|
|
m->deref();
|
|
return true;
|
|
}
|
|
if (!m_tr2) {
|
|
msg.setParam("error","nocall");
|
|
return false;
|
|
}
|
|
if (!(m_tr2->isIncoming() && (m_tr2->getState() == SIPTransaction::Process))) {
|
|
msg.setParam("error","failure");
|
|
msg.setParam("reason","Incompatible Transaction State");
|
|
return false;
|
|
}
|
|
if (*oper == "notify") {
|
|
SDPBody* sdp = createPasstroughSDP(msg);
|
|
if (!sdp) {
|
|
m_tr2->setResponse(500,"Server failed to build the SDP");
|
|
detachTransaction2();
|
|
return false;
|
|
}
|
|
SIPMessage* m = new SIPMessage(m_tr2->initialMessage(), 200);
|
|
m->setBody(sdp);
|
|
m_tr2->setResponse(m);
|
|
detachTransaction2();
|
|
m->deref();
|
|
return true;
|
|
}
|
|
else if (*oper == "reject") {
|
|
m_tr2->setResponse(msg.getIntValue("error",dict_errors,488),msg.getValue("reason"));
|
|
detachTransaction2();
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void YateSIPConnection::statusParams(String& str)
|
|
{
|
|
Channel::statusParams(str);
|
|
if (m_line)
|
|
str << ",line=" << m_line;
|
|
if (m_user)
|
|
str << ",user=" << m_user;
|
|
if (m_rtpForward)
|
|
str << ",forward=" << (m_sdpForward ? "sdp" : "rtp");
|
|
str << ",inviting=" << (m_tr != 0);
|
|
}
|
|
|
|
bool YateSIPConnection::callRouted(Message& msg)
|
|
{
|
|
Channel::callRouted(msg);
|
|
if (m_tr && (m_tr->getState() == SIPTransaction::Process)) {
|
|
String s(msg.retValue());
|
|
if (s.startSkip("sip/",false) && s && msg.getBoolValue("redirect")) {
|
|
Debug(this,DebugAll,"YateSIPConnection redirecting to '%s' [%p]",s.c_str(),this);
|
|
String tmp(msg.getValue("calledname"));
|
|
if (tmp)
|
|
tmp = "\"" + tmp + "\" ";
|
|
s = tmp + "<" + s + ">";
|
|
SIPMessage* m = new SIPMessage(m_tr->initialMessage(),302);
|
|
m->addHeader("Contact",s);
|
|
m_tr->setResponse(m);
|
|
m->deref();
|
|
m_byebye = false;
|
|
setReason("Redirected",302);
|
|
setStatus("redirected");
|
|
return false;
|
|
}
|
|
if (msg.getBoolValue("progress",s_cfg.getBoolValue("general","progress",false)))
|
|
m_tr->setResponse(183);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
void YateSIPConnection::callAccept(Message& msg)
|
|
{
|
|
m_user = msg.getValue("username");
|
|
if (m_authBye)
|
|
m_authBye = msg.getBoolValue("xsip_auth_bye",true);
|
|
if (m_rtpForward) {
|
|
String tmp(msg.getValue("rtp_forward"));
|
|
if (tmp != "accepted")
|
|
m_rtpForward = false;
|
|
}
|
|
Channel::callAccept(msg);
|
|
}
|
|
|
|
void YateSIPConnection::callRejected(const char* error, const char* reason, const Message* msg)
|
|
{
|
|
Channel::callRejected(error,reason,msg);
|
|
int code = lookup(error,dict_errors,500);
|
|
if (m_tr && (m_tr->getState() == SIPTransaction::Process)) {
|
|
if (code == 401)
|
|
m_tr->requestAuth(s_realm,"",false);
|
|
else
|
|
m_tr->setResponse(code,reason);
|
|
}
|
|
setReason(reason,code);
|
|
}
|
|
|
|
YateSIPLine::YateSIPLine(const String& name)
|
|
: String(name), m_resend(0), m_keepalive(0), m_interval(0), m_alive(0),
|
|
m_tr(0), m_marked(false), m_valid(false),
|
|
m_localPort(0), m_partyPort(0), m_localDetect(false)
|
|
{
|
|
DDebug(&plugin,DebugInfo,"YateSIPLine::YateSIPLine('%s') [%p]",c_str(),this);
|
|
s_lines.append(this);
|
|
}
|
|
|
|
YateSIPLine::~YateSIPLine()
|
|
{
|
|
DDebug(&plugin,DebugInfo,"YateSIPLine::~YateSIPLine() '%s' [%p]",c_str(),this);
|
|
s_lines.remove(this,false);
|
|
logout();
|
|
}
|
|
|
|
void YateSIPLine::setupAuth(SIPMessage* msg) const
|
|
{
|
|
if (msg)
|
|
msg->setAutoAuth(getAuthName(),m_password);
|
|
}
|
|
|
|
SIPMessage* YateSIPLine::buildRegister(int expires) const
|
|
{
|
|
String exp(expires);
|
|
String tmp;
|
|
tmp << "sip:" << m_registrar;
|
|
SIPMessage* m = new SIPMessage("REGISTER",tmp);
|
|
plugin.ep()->buildParty(m,0,0,this);
|
|
if (!m->getParty()) {
|
|
Debug(&plugin,DebugWarn,"Could not create party for '%s' [%p]",
|
|
m_registrar.c_str(),this);
|
|
m->destruct();
|
|
return 0;
|
|
}
|
|
tmp = "\"";
|
|
tmp << (m_display.null() ? m_username : m_display);
|
|
tmp << "\" <sip:";
|
|
tmp << m_username << "@";
|
|
tmp << m->getParty()->getLocalAddr() << ":";
|
|
tmp << m->getParty()->getLocalPort() << ">";
|
|
m->addHeader("Contact",tmp);
|
|
m->addHeader("Expires",exp);
|
|
tmp = "<sip:";
|
|
tmp << m_username << "@" << domain() << ">";
|
|
m->addHeader("To",tmp);
|
|
m->complete(plugin.ep()->engine(),m_username,domain());
|
|
return m;
|
|
}
|
|
|
|
void YateSIPLine::login()
|
|
{
|
|
m_keepalive = 0;
|
|
if (m_registrar.null() || m_username.null()) {
|
|
logout();
|
|
m_valid = true;
|
|
return;
|
|
}
|
|
DDebug(&plugin,DebugInfo,"YateSIPLine '%s' logging in [%p]",c_str(),this);
|
|
clearTransaction();
|
|
|
|
SIPMessage* m = buildRegister(m_interval);
|
|
if (!m) {
|
|
m_valid = false;
|
|
return;
|
|
}
|
|
DDebug(&plugin,DebugInfo,"YateSIPLine '%s' emiting %p [%p]",
|
|
c_str(),m,this);
|
|
m_tr = plugin.ep()->engine()->addMessage(m);
|
|
if (m_tr) {
|
|
m_tr->ref();
|
|
m_tr->setUserData(this);
|
|
}
|
|
m->deref();
|
|
}
|
|
|
|
void YateSIPLine::logout()
|
|
{
|
|
m_resend = 0;
|
|
m_keepalive = 0;
|
|
bool sendLogout = m_valid && m_registrar && m_username;
|
|
clearTransaction();
|
|
m_valid = false;
|
|
if (sendLogout) {
|
|
DDebug(&plugin,DebugInfo,"YateSIPLine '%s' logging out [%p]",c_str(),this);
|
|
SIPMessage* m = buildRegister(0);
|
|
m_partyAddr.clear();
|
|
m_partyPort = 0;
|
|
if (!m)
|
|
return;
|
|
plugin.ep()->engine()->addMessage(m);
|
|
m->deref();
|
|
}
|
|
}
|
|
|
|
bool YateSIPLine::process(SIPEvent* ev)
|
|
{
|
|
DDebug(&plugin,DebugInfo,"YateSIPLine::process(%p) %s [%p]",
|
|
ev,SIPTransaction::stateName(ev->getState()),this);
|
|
if (ev->getTransaction() != m_tr)
|
|
return false;
|
|
if (ev->getState() == SIPTransaction::Cleared) {
|
|
clearTransaction();
|
|
m_valid = false;
|
|
m_resend = m_interval*(int64_t)1000000 + Time::now();
|
|
m_keepalive = 0;
|
|
return false;
|
|
}
|
|
const SIPMessage* msg = ev->getMessage();
|
|
if (!(msg && msg->isAnswer()))
|
|
return false;
|
|
if (ev->getState() != SIPTransaction::Process)
|
|
return false;
|
|
clearTransaction();
|
|
DDebug(&plugin,DebugAll,"YateSIPLine '%s' got answer %d [%p]",
|
|
c_str(),msg->code,this);
|
|
switch (msg->code) {
|
|
case 200:
|
|
// re-register at 3/4 of the expire interval
|
|
m_resend = m_interval*(int64_t)750000 + Time::now();
|
|
m_keepalive = m_alive ? m_alive*(int64_t)1000000 + Time::now() : 0;
|
|
if (msg->getParty()) {
|
|
if (m_localDetect) {
|
|
String laddr = m_localAddr;
|
|
int lport = m_localPort;
|
|
SIPHeaderLine* hl = const_cast<SIPHeaderLine*>(msg->getHeader("Via"));
|
|
if (hl) {
|
|
const NamedString* par = hl->getParam("received");
|
|
if (par && *par)
|
|
laddr = *par;
|
|
par = hl->getParam("rport");
|
|
if (par) {
|
|
int port = par->toInteger(0,10);
|
|
if (port > 0)
|
|
lport = port;
|
|
}
|
|
}
|
|
if (laddr.null())
|
|
laddr = msg->getParty()->getLocalAddr();
|
|
if (!lport)
|
|
lport = msg->getParty()->getLocalPort();
|
|
if ((laddr != m_localAddr) || (lport != m_localPort)) {
|
|
Debug(&plugin,DebugInfo,"Detected local address %s:%d for SIP line '%s'",
|
|
laddr.c_str(),lport,c_str());
|
|
m_localAddr = laddr;
|
|
m_localPort = lport;
|
|
// since local address changed register again in 5 seconds
|
|
m_resend = 5000000 + Time::now();
|
|
}
|
|
}
|
|
m_partyAddr = msg->getParty()->getPartyAddr();
|
|
m_partyPort = msg->getParty()->getPartyPort();
|
|
}
|
|
m_valid = true;
|
|
Debug(&plugin,DebugCall,"SIP line '%s' logon success to %s:%d",
|
|
c_str(),m_partyAddr.c_str(),m_partyPort);
|
|
break;
|
|
default:
|
|
m_valid = false;
|
|
Debug(&plugin,DebugWarn,"SIP line '%s' logon failure %d",c_str(),msg->code);
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void YateSIPLine::keepalive()
|
|
{
|
|
Socket* sock = plugin.ep() ? plugin.ep()->socket() : 0;
|
|
if (sock && m_partyPort && m_partyAddr) {
|
|
SocketAddr addr(PF_INET);
|
|
if (addr.host(m_partyAddr) && addr.port(m_partyPort) && addr.valid()) {
|
|
Debug(&plugin,DebugAll,"Sending UDP keepalive to %s:%d for '%s'",
|
|
m_partyAddr.c_str(),m_partyPort,c_str());
|
|
sock->sendTo("\r\n",2,addr);
|
|
}
|
|
}
|
|
m_keepalive = m_alive ? m_alive*(int64_t)1000000 + Time::now() : 0;
|
|
}
|
|
|
|
void YateSIPLine::timer(const Time& when)
|
|
{
|
|
if (!m_resend || (m_resend > when)) {
|
|
if (m_keepalive && (m_keepalive <= when))
|
|
keepalive();
|
|
return;
|
|
}
|
|
m_resend = m_interval*(int64_t)1000000 + when;
|
|
login();
|
|
}
|
|
|
|
void YateSIPLine::clearTransaction()
|
|
{
|
|
if (m_tr) {
|
|
DDebug(&plugin,DebugInfo,"YateSIPLine clearing transaction %p [%p]",
|
|
m_tr,this);
|
|
m_tr->setUserData(0);
|
|
m_tr->deref();
|
|
m_tr = 0;
|
|
}
|
|
}
|
|
|
|
bool YateSIPLine::change(String& dest, const String& src)
|
|
{
|
|
if (dest == src)
|
|
return false;
|
|
// we need to log out before any parameter changes
|
|
logout();
|
|
dest = src;
|
|
return true;
|
|
}
|
|
|
|
bool YateSIPLine::change(int& dest, int src)
|
|
{
|
|
if (dest == src)
|
|
return false;
|
|
// we need to log out before any parameter changes
|
|
logout();
|
|
dest = src;
|
|
return true;
|
|
}
|
|
|
|
bool YateSIPLine::update(const Message& msg)
|
|
{
|
|
DDebug(&plugin,DebugInfo,"YateSIPLine::update() '%s' [%p]",c_str(),this);
|
|
String oper(msg.getValue("operation"));
|
|
if (oper == "logout") {
|
|
logout();
|
|
return true;
|
|
}
|
|
bool chg = false;
|
|
chg = change(m_registrar,msg.getValue("registrar",msg.getValue("server"))) || chg;
|
|
chg = change(m_outbound,msg.getValue("outbound")) || chg;
|
|
chg = change(m_username,msg.getValue("username")) || chg;
|
|
chg = change(m_authname,msg.getValue("authname")) || chg;
|
|
chg = change(m_password,msg.getValue("password")) || chg;
|
|
chg = change(m_domain,msg.getValue("domain")) || chg;
|
|
m_display = msg.getValue("description");
|
|
m_interval = msg.getIntValue("interval",600);
|
|
String tmp(msg.getValue("localaddress"));
|
|
m_localDetect = (tmp == "auto");
|
|
if (!m_localDetect) {
|
|
int port = 0;
|
|
if (tmp) {
|
|
int sep = tmp.find(':');
|
|
if (sep > 0) {
|
|
port = tmp.substr(sep+1).toInteger(5060);
|
|
tmp = tmp.substr(0,sep);
|
|
}
|
|
else if (sep < 0)
|
|
port = 5060;
|
|
}
|
|
chg = change(m_localAddr,tmp) || chg;
|
|
chg = change(m_localPort,port) || chg;
|
|
}
|
|
m_alive = msg.getIntValue("keepalive",(m_localDetect ? 25 : 0));
|
|
tmp = msg.getValue("operation");
|
|
// if something changed we logged out so try to climb back
|
|
if (chg || (oper == "login"))
|
|
login();
|
|
return chg;
|
|
}
|
|
|
|
YateSIPGenerate::YateSIPGenerate(SIPMessage* m)
|
|
: m_tr(0), m_code(0)
|
|
{
|
|
m_tr = plugin.ep()->engine()->addMessage(m);
|
|
if (m_tr) {
|
|
m_tr->ref();
|
|
m_tr->setUserData(this);
|
|
}
|
|
m->deref();
|
|
}
|
|
|
|
YateSIPGenerate::~YateSIPGenerate()
|
|
{
|
|
clearTransaction();
|
|
}
|
|
|
|
bool YateSIPGenerate::process(SIPEvent* ev)
|
|
{
|
|
DDebug(&plugin,DebugInfo,"YateSIPGenerate::process(%p) %s [%p]",
|
|
ev,SIPTransaction::stateName(ev->getState()),this);
|
|
if (ev->getTransaction() != m_tr)
|
|
return false;
|
|
if (ev->getState() == SIPTransaction::Cleared) {
|
|
clearTransaction();
|
|
return false;
|
|
}
|
|
const SIPMessage* msg = ev->getMessage();
|
|
if (!(msg && msg->isAnswer()))
|
|
return false;
|
|
if (ev->getState() != SIPTransaction::Process)
|
|
return false;
|
|
m_code = msg->code;
|
|
clearTransaction();
|
|
Debug(&plugin,DebugAll,"YateSIPGenerate got answer %d [%p]",
|
|
m_code,this);
|
|
return false;
|
|
}
|
|
|
|
void YateSIPGenerate::clearTransaction()
|
|
{
|
|
if (m_tr) {
|
|
DDebug(&plugin,DebugInfo,"YateSIPGenerate clearing transaction %p [%p]",
|
|
m_tr,this);
|
|
m_tr->setUserData(0);
|
|
m_tr->deref();
|
|
m_tr = 0;
|
|
}
|
|
}
|
|
|
|
bool UserHandler::received(Message &msg)
|
|
{
|
|
String tmp(msg.getValue("protocol"));
|
|
if (tmp != "sip")
|
|
return false;
|
|
tmp = msg.getValue("account");
|
|
if (tmp.null())
|
|
return false;
|
|
YateSIPLine* line = plugin.findLine(tmp);
|
|
if (!line)
|
|
line = new YateSIPLine(tmp);
|
|
line->update(msg);
|
|
return true;
|
|
}
|
|
|
|
bool SipHandler::received(Message &msg)
|
|
{
|
|
Debug(&plugin,DebugInfo,"SipHandler::received() [%p]",this);
|
|
const char* method = msg.getValue("method");
|
|
String uri(msg.getValue("uri"));
|
|
Regexp r("<\\([^>]\\+\\)>");
|
|
if (uri.matches(r))
|
|
uri = uri.matchString(1);
|
|
if (!(method && uri))
|
|
return false;
|
|
YateSIPLine* line = plugin.findLine(msg.getValue("line"));
|
|
if (line && !line->valid()) {
|
|
msg.setParam("error","offline");
|
|
return false;
|
|
}
|
|
SIPMessage* sip = new SIPMessage(method,uri);
|
|
plugin.ep()->buildParty(sip,msg.getValue("host"),msg.getIntValue("port"),line);
|
|
copySipHeaders(*sip,msg);
|
|
const char* type = msg.getValue("xsip_type");
|
|
const char* body = msg.getValue("xsip_body");
|
|
if (type && body)
|
|
sip->setBody(new SIPStringBody(type,body,-1));
|
|
sip->complete(plugin.ep()->engine(),msg.getValue("user"),msg.getValue("domain"));
|
|
if (!msg.getBoolValue("wait")) {
|
|
// no answer requested - start transaction and forget
|
|
plugin.ep()->engine()->addMessage(sip);
|
|
return true;
|
|
}
|
|
YateSIPGenerate gen(sip);
|
|
while (gen.busy())
|
|
Thread::yield();
|
|
if (gen.code())
|
|
msg.setParam("code",String(gen.code()));
|
|
else
|
|
msg.clearParam("code");
|
|
return true;
|
|
}
|
|
|
|
YateSIPConnection* SIPDriver::findCall(const String& callid)
|
|
{
|
|
XDebug(this,DebugAll,"SIPDriver finding call '%s'",callid.c_str());
|
|
Lock mylock(this);
|
|
ObjList* l = channels().skipNull();
|
|
for (; l; l = l->skipNext()) {
|
|
YateSIPConnection* c = static_cast<YateSIPConnection*>(l->get());
|
|
if (c->callid() == callid)
|
|
return c;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
YateSIPConnection* SIPDriver::findDialog(const SIPDialog& dialog)
|
|
{
|
|
XDebug(this,DebugAll,"SIPDriver finding dialog '%s'",dialog.c_str());
|
|
Lock mylock(this);
|
|
ObjList* l = channels().skipNull();
|
|
for (; l; l = l->skipNext()) {
|
|
YateSIPConnection* c = static_cast<YateSIPConnection*>(l->get());
|
|
if (c->dialog() == dialog)
|
|
return c;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
// find line by name
|
|
YateSIPLine* SIPDriver::findLine(const String& line)
|
|
{
|
|
if (line.null())
|
|
return 0;
|
|
ObjList* l = s_lines.find(line);
|
|
return l ? static_cast<YateSIPLine*>(l->get()) : 0;
|
|
}
|
|
|
|
// find line by party address and port
|
|
YateSIPLine* SIPDriver::findLine(const String& addr, int port, const String& user)
|
|
{
|
|
if (!(port && addr))
|
|
return 0;
|
|
Lock mylock(this);
|
|
ObjList* l = s_lines.skipNull();
|
|
for (; l; l = l->skipNext()) {
|
|
YateSIPLine* sl = static_cast<YateSIPLine*>(l->get());
|
|
if (sl->getPartyPort() && (sl->getPartyPort() == port) && (sl->getPartyAddr() == addr)) {
|
|
if (user && (sl->getUserName() != user))
|
|
continue;
|
|
return sl;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
// check if a line is either empty or valid (logged in or no registrar)
|
|
bool SIPDriver::validLine(const String& line)
|
|
{
|
|
if (line.null())
|
|
return true;
|
|
YateSIPLine* l = findLine(line);
|
|
return l && l->valid();
|
|
}
|
|
|
|
bool SIPDriver::received(Message& msg, int id)
|
|
{
|
|
if (id == Timer) {
|
|
ObjList* l = s_lines.skipNull();
|
|
for (; l; l = l->skipNext())
|
|
static_cast<YateSIPLine*>(l->get())->timer(msg.msgTime());
|
|
}
|
|
else if (id == Halt) {
|
|
dropAll(msg);
|
|
channels().clear();
|
|
s_lines.clear();
|
|
}
|
|
return Driver::received(msg,id);
|
|
}
|
|
|
|
bool SIPDriver::msgRoute(Message& msg)
|
|
{
|
|
String called = msg.getValue("called");
|
|
if (called.null() || (called.find('@') >= 0))
|
|
return false;
|
|
String line = msg.getValue("line");
|
|
if (line.null())
|
|
line = msg.getValue("account");
|
|
if (line && findLine(line)) {
|
|
// asked to route to a line we have locally
|
|
msg.setParam("line",line);
|
|
msg.retValue() = prefix() + called;
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
bool SIPDriver::msgExecute(Message& msg, String& dest)
|
|
{
|
|
if (!msg.userData()) {
|
|
Debug(this,DebugWarn,"SIP call found but no data channel!");
|
|
return false;
|
|
}
|
|
if (!validLine(msg.getValue("line"))) {
|
|
// asked to use a line but it's not registered
|
|
msg.setParam("error","offline");
|
|
return false;
|
|
}
|
|
YateSIPConnection* conn = new YateSIPConnection(msg,dest,msg.getValue("id"));
|
|
if (conn->getTransaction()) {
|
|
CallEndpoint* ch = static_cast<CallEndpoint*>(msg.userData());
|
|
if (ch && conn->connect(ch,msg.getValue("reason"))) {
|
|
msg.setParam("peerid",conn->id());
|
|
msg.setParam("targetid",conn->id());
|
|
conn->deref();
|
|
return true;
|
|
}
|
|
}
|
|
conn->destruct();
|
|
return false;
|
|
}
|
|
|
|
SIPDriver::SIPDriver()
|
|
: Driver("sip","varchans"), m_endpoint(0)
|
|
{
|
|
Output("Loaded module SIP Channel");
|
|
}
|
|
|
|
SIPDriver::~SIPDriver()
|
|
{
|
|
Output("Unloading module SIP Channel");
|
|
}
|
|
|
|
void SIPDriver::initialize()
|
|
{
|
|
Output("Initializing module SIP Channel");
|
|
s_cfg = Engine::configFile("ysipchan");
|
|
s_cfg.load();
|
|
s_realm = s_cfg.getValue("general","realm","Yate");
|
|
s_maxForwards = s_cfg.getIntValue("general","maxforwards",20);
|
|
s_privacy = s_cfg.getBoolValue("general","privacy");
|
|
s_auto_nat = s_cfg.getBoolValue("general","nat",true);
|
|
s_inband = s_cfg.getBoolValue("general","dtmfinband",false);
|
|
s_forward_sdp = s_cfg.getBoolValue("general","forward_sdp",false);
|
|
s_expires_min = s_cfg.getIntValue("registrar","expires_min",EXPIRES_MIN);
|
|
s_expires_def = s_cfg.getIntValue("registrar","expires_def",EXPIRES_DEF);
|
|
s_expires_max = s_cfg.getIntValue("registrar","expires_max",EXPIRES_MAX);
|
|
s_auth_register = s_cfg.getBoolValue("registrar","auth_required",true);
|
|
if (!m_endpoint) {
|
|
m_endpoint = new YateSIPEndPoint();
|
|
if (!(m_endpoint->Init())) {
|
|
delete m_endpoint;
|
|
m_endpoint = 0;
|
|
return;
|
|
}
|
|
m_endpoint->startup();
|
|
setup();
|
|
installRelay(Halt);
|
|
installRelay(Progress);
|
|
installRelay(Update);
|
|
installRelay(Route);
|
|
Engine::install(new UserHandler);
|
|
if (s_cfg.getBoolValue("general","generate"))
|
|
Engine::install(new SipHandler);
|
|
}
|
|
}
|
|
|
|
}; // anonymous namespace
|
|
|
|
/* vi: set ts=8 sw=4 sts=4 noet: */
|