From 7d3e8991041385f46030c2d6fb9c6448862078cc Mon Sep 17 00:00:00 2001 From: Jonathan Naylor Date: Sun, 6 Sep 2020 12:54:08 +0100 Subject: [PATCH] Clean ups for IPv6. --- DMRNetwork.cpp | 36 +++++++------- DMRNetwork.h | 46 +++++++++--------- DStarNetwork.cpp | 36 ++++++++------ DStarNetwork.h | 30 ++++++------ MMDVMHost.cpp | 7 ++- NXDNIcomNetwork.cpp | 36 ++++++++------ NXDNIcomNetwork.h | 24 +++++----- NXDNKenwoodNetwork.cpp | 63 +++++++++++++++---------- NXDNKenwoodNetwork.h | 103 +++++++++++++++++++++-------------------- P25Network.cpp | 70 +++++++++++++++------------- P25Network.h | 14 +++--- POCSAGNetwork.cpp | 36 ++++++++------ POCSAGNetwork.h | 12 ++--- RemoteCommand.cpp | 15 +++--- Version.h | 2 +- YSFNetwork.cpp | 34 ++++++++------ YSFNetwork.h | 18 +++---- 17 files changed, 323 insertions(+), 259 deletions(-) diff --git a/DMRNetwork.cpp b/DMRNetwork.cpp index 3b98357..01fe954 100644 --- a/DMRNetwork.cpp +++ b/DMRNetwork.cpp @@ -34,8 +34,8 @@ const unsigned int HOMEBREW_DATA_PACKET_LENGTH = 55U; CDMRNetwork::CDMRNetwork(const std::string& address, unsigned int port, unsigned int local, unsigned int id, bool duplex, const char* version, bool debug, bool slot1, bool slot2, HW_TYPE hwType) : m_addressStr(address), -m_address(), -m_addrlen(), +m_addr(), +m_addrLen(0U), m_port(port), m_id(NULL), m_duplex(duplex), @@ -62,7 +62,8 @@ m_pingTimer(1000U, 10U) assert(port > 0U); assert(id > 1000U); - CUDPSocket::lookup(m_addressStr, m_port, m_address, m_addrlen); + if (CUDPSocket::lookup(m_addressStr, m_port, m_addr, m_addrLen) != 0) + m_addrLen = 0U; m_buffer = new unsigned char[BUFFER_LENGTH]; m_id = new uint8_t[4U]; @@ -100,12 +101,14 @@ void CDMRNetwork::setConfig(const std::string & callsign, unsigned int rxFrequen bool CDMRNetwork::open() { + if (m_addrLen == 0U) { + LogError("Unable to resolve the address of the DMR Gateway"); + return false; + } + LogMessage("DMR, Opening DMR Network"); - if (CUDPSocket::isNone(m_address)) - CUDPSocket::lookup(m_addressStr, m_port, m_address, m_addrlen); - - bool ret = m_socket.open(); + bool ret = m_socket.open(m_addr); if (ret) m_pingTimer.start(); @@ -297,26 +300,25 @@ void CDMRNetwork::clock(unsigned int ms) } sockaddr_storage address; - unsigned int addrlen; - int length = m_socket.read(m_buffer, BUFFER_LENGTH, address, addrlen); + unsigned int addrLen; + int length = m_socket.read(m_buffer, BUFFER_LENGTH, address, addrLen); if (length <= 0) return; - if (!CUDPSocket::match(m_address, address)) { + if (!CUDPSocket::match(m_addr, address)) { LogMessage("DMR, packet received from an invalid source"); return; } - if (!m_enabled) - return; - if (m_debug) CUtils::dump(1U, "Network Received", m_buffer, length); if (::memcmp(m_buffer, "DMRD", 4U) == 0) { - unsigned char len = length; - m_rxData.addData(&len, 1U); - m_rxData.addData(m_buffer, len); + if (m_enabled) { + unsigned char len = length; + m_rxData.addData(&len, 1U); + m_rxData.addData(m_buffer, len); + } } else if (::memcmp(m_buffer, "DMRP", 4U) == 0) { ; } else if (::memcmp(m_buffer, "DMRB", 4U) == 0) { @@ -427,7 +429,7 @@ bool CDMRNetwork::write(const unsigned char* data, unsigned int length) if (m_debug) CUtils::dump(1U, "Network Transmitted", data, length); - bool ret = m_socket.write(data, length, m_address, m_addrlen); + bool ret = m_socket.write(data, length, m_addr, m_addrLen); if (!ret) { LogError("DMR, socket error when writing to the DMR Gateway"); return false; diff --git a/DMRNetwork.h b/DMRNetwork.h index 0f1368a..1ddccb6 100644 --- a/DMRNetwork.h +++ b/DMRNetwork.h @@ -56,30 +56,30 @@ public: void close(); private: - std::string m_addressStr; - sockaddr_storage m_address; - unsigned int m_addrlen; - unsigned int m_port; - uint8_t* m_id; - bool m_duplex; - const char* m_version; - bool m_debug; - CUDPSocket m_socket; - bool m_enabled; - bool m_slot1; - bool m_slot2; - HW_TYPE m_hwType; - unsigned char* m_buffer; - uint32_t* m_streamId; + std::string m_addressStr; + sockaddr_storage m_addr; + unsigned int m_addrLen; + unsigned int m_port; + uint8_t* m_id; + bool m_duplex; + const char* m_version; + bool m_debug; + CUDPSocket m_socket; + bool m_enabled; + bool m_slot1; + bool m_slot2; + HW_TYPE m_hwType; + unsigned char* m_buffer; + uint32_t* m_streamId; CRingBuffer m_rxData; - bool m_beacon; - std::mt19937 m_random; - std::string m_callsign; - unsigned int m_rxFrequency; - unsigned int m_txFrequency; - unsigned int m_power; - unsigned int m_colorCode; - CTimer m_pingTimer; + bool m_beacon; + std::mt19937 m_random; + std::string m_callsign; + unsigned int m_rxFrequency; + unsigned int m_txFrequency; + unsigned int m_power; + unsigned int m_colorCode; + CTimer m_pingTimer; bool writeConfig(); diff --git a/DStarNetwork.cpp b/DStarNetwork.cpp index b499853..21bbc9d 100644 --- a/DStarNetwork.cpp +++ b/DStarNetwork.cpp @@ -1,5 +1,5 @@ /* - * Copyright (C) 2009-2014,2016,2019 by Jonathan Naylor G4KLX + * Copyright (C) 2009-2014,2016,2019,2020 by Jonathan Naylor G4KLX * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -32,8 +32,8 @@ const unsigned int BUFFER_LENGTH = 100U; CDStarNetwork::CDStarNetwork(const std::string& gatewayAddress, unsigned int gatewayPort, unsigned int localPort, bool duplex, const char* version, bool debug) : m_socket(localPort), -m_address(), -m_addrlen(), +m_addr(), +m_addrLen(0U), m_duplex(duplex), m_version(version), m_debug(debug), @@ -47,7 +47,8 @@ m_linkStatus(LS_NONE), m_linkReflector(NULL), m_random() { - CUDPSocket::lookup(gatewayAddress, gatewayPort, m_address, m_addrlen); + if (CUDPSocket::lookup(gatewayAddress, gatewayPort, m_addr, m_addrLen) != 0) + m_addrLen = 0U; m_linkReflector = new unsigned char[DSTAR_LONG_CALLSIGN_LENGTH]; @@ -63,14 +64,16 @@ CDStarNetwork::~CDStarNetwork() bool CDStarNetwork::open() { - LogMessage("Opening D-Star network connection"); - - if (CUDPSocket::isNone(m_address)) + if (m_addrLen == 0U) { + LogError("Unable to resolve the address of the ircDDB Gateway"); return false; + } + + LogMessage("Opening D-Star network connection"); m_pollTimer.start(); - return m_socket.open(m_address.ss_family); + return m_socket.open(m_addr); } bool CDStarNetwork::writeHeader(const unsigned char* header, unsigned int length, bool busy) @@ -103,7 +106,7 @@ bool CDStarNetwork::writeHeader(const unsigned char* header, unsigned int length CUtils::dump(1U, "D-Star Network Header Sent", buffer, 49U); for (unsigned int i = 0U; i < 2U; i++) { - bool ret = m_socket.write(buffer, 49U, m_address, m_addrlen); + bool ret = m_socket.write(buffer, 49U, m_addr, m_addrLen); if (!ret) return false; } @@ -146,7 +149,7 @@ bool CDStarNetwork::writeData(const unsigned char* data, unsigned int length, un if (m_debug) CUtils::dump(1U, "D-Star Network Data Sent", buffer, length + 9U); - return m_socket.write(buffer, length + 9U, m_address, m_addrlen); + return m_socket.write(buffer, length + 9U, m_addr, m_addrLen); } bool CDStarNetwork::writePoll(const char* text) @@ -170,7 +173,7 @@ bool CDStarNetwork::writePoll(const char* text) // if (m_debug) // CUtils::dump(1U, "D-Star Network Poll Sent", buffer, 6U + length); - return m_socket.write(buffer, 6U + length, m_address, m_addrlen); + return m_socket.write(buffer, 6U + length, m_addr, m_addrLen); } void CDStarNetwork::clock(unsigned int ms) @@ -196,11 +199,16 @@ void CDStarNetwork::clock(unsigned int ms) unsigned char buffer[BUFFER_LENGTH]; sockaddr_storage address; - unsigned int addrlen; - int length = m_socket.read(buffer, BUFFER_LENGTH, address, addrlen); - if (length <= 0 || !CUDPSocket::match(m_address, address)) + unsigned int addrLen; + int length = m_socket.read(buffer, BUFFER_LENGTH, address, addrLen); + if (length <= 0) return; + if (!CUDPSocket::match(m_addr, address)) { + LogMessage("D-Star, packet received from an invalid source"); + return; + } + // Invalid packet type? if (::memcmp(buffer, "DSRP", 4U) != 0) return; diff --git a/DStarNetwork.h b/DStarNetwork.h index fc1fd68..1e0d5f0 100644 --- a/DStarNetwork.h +++ b/DStarNetwork.h @@ -1,5 +1,5 @@ /* - * Copyright (C) 2009-2014,2016 by Jonathan Naylor G4KLX + * Copyright (C) 2009-2014,2016,2020 by Jonathan Naylor G4KLX * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -51,21 +51,21 @@ public: void clock(unsigned int ms); private: - CUDPSocket m_socket; - sockaddr_storage m_address; - unsigned int m_addrlen; - bool m_duplex; - const char* m_version; - bool m_debug; - bool m_enabled; - uint16_t m_outId; - uint8_t m_outSeq; - uint16_t m_inId; + CUDPSocket m_socket; + sockaddr_storage m_addr; + unsigned int m_addrLen; + bool m_duplex; + const char* m_version; + bool m_debug; + bool m_enabled; + uint16_t m_outId; + uint8_t m_outSeq; + uint16_t m_inId; CRingBuffer m_buffer; - CTimer m_pollTimer; - LINK_STATUS m_linkStatus; - unsigned char* m_linkReflector; - std::mt19937 m_random; + CTimer m_pollTimer; + LINK_STATUS m_linkStatus; + unsigned char* m_linkReflector; + std::mt19937 m_random; bool writePoll(const char* text); }; diff --git a/MMDVMHost.cpp b/MMDVMHost.cpp index ab76284..1061e7e 100644 --- a/MMDVMHost.cpp +++ b/MMDVMHost.cpp @@ -338,10 +338,13 @@ int CMMDVMHost::run() LogInfo(" Local Port: %u", localPort); LogInfo(" Send Frame Type: %u", sendFrameType); - CUDPSocket::lookup(remoteAddress, remotePort, transparentAddress, transparentAddrLen); + if (CUDPSocket::lookup(remoteAddress, remotePort, transparentAddress, transparentAddrLen) != 0) { + LogError("Unable to resolve the address of the Transparent Data source"); + return 1; + } transparentSocket = new CUDPSocket(localPort); - ret = transparentSocket->open(transparentAddress.ss_family); + ret = transparentSocket->open(transparentAddress); if (!ret) { LogWarning("Could not open the Transparent data socket, disabling"); delete transparentSocket; diff --git a/NXDNIcomNetwork.cpp b/NXDNIcomNetwork.cpp index c118be6..b13ca2a 100644 --- a/NXDNIcomNetwork.cpp +++ b/NXDNIcomNetwork.cpp @@ -30,8 +30,8 @@ const unsigned int BUFFER_LENGTH = 200U; CNXDNIcomNetwork::CNXDNIcomNetwork(const std::string& localAddress, unsigned int localPort, const std::string& gatewayAddress, unsigned int gatewayPort, bool debug) : m_socket(localAddress, localPort), -m_address(), -m_addrlen(), +m_addr(), +m_addrLen(0U), m_debug(debug), m_enabled(false), m_buffer(1000U, "NXDN Network") @@ -39,7 +39,8 @@ m_buffer(1000U, "NXDN Network") assert(gatewayPort > 0U); assert(!gatewayAddress.empty()); - CUDPSocket::lookup(gatewayAddress, gatewayPort, m_address, m_addrlen); + if (CUDPSocket::lookup(gatewayAddress, gatewayPort, m_addr, m_addrLen) != 0) + m_addrLen = 0U; } CNXDNIcomNetwork::~CNXDNIcomNetwork() @@ -48,12 +49,14 @@ CNXDNIcomNetwork::~CNXDNIcomNetwork() bool CNXDNIcomNetwork::open() { + if (m_addrLen == 0U) { + LogError("Unable to resolve the address of the NXDN Gateway"); + return false; + } + LogMessage("Opening NXDN network connection"); - if (CUDPSocket::isNone(m_address)) - return false; - - return m_socket.open(); + return m_socket.open(m_addr); } bool CNXDNIcomNetwork::write(const unsigned char* data, NXDN_NETWORK_MESSAGE_TYPE type) @@ -100,7 +103,7 @@ bool CNXDNIcomNetwork::write(const unsigned char* data, NXDN_NETWORK_MESSAGE_TYP if (m_debug) CUtils::dump(1U, "NXDN Network Data Sent", buffer, 102U); - return m_socket.write(buffer, 102U, m_address, m_addrlen); + return m_socket.write(buffer, 102U, m_addr, m_addrLen); } void CNXDNIcomNetwork::clock(unsigned int ms) @@ -108,11 +111,19 @@ void CNXDNIcomNetwork::clock(unsigned int ms) unsigned char buffer[BUFFER_LENGTH]; sockaddr_storage address; - unsigned int addrlen; - int length = m_socket.read(buffer, BUFFER_LENGTH, address, addrlen); - if (length <= 0 || !CUDPSocket::match(m_address, address)) + unsigned int addrLen; + int length = m_socket.read(buffer, BUFFER_LENGTH, address, addrLen); + if (length <= 0) return; + if (!CUDPSocket::match(m_addr, address)) { + LogMessage("NXDN, packet received from an invalid source"); + return; + } + + if (m_debug) + CUtils::dump(1U, "NXDN Network Data Received", buffer, length); + // Invalid packet type? if (::memcmp(buffer, "ICOM", 4U) != 0) return; @@ -123,9 +134,6 @@ void CNXDNIcomNetwork::clock(unsigned int ms) if (!m_enabled) return; - if (m_debug) - CUtils::dump(1U, "NXDN Network Data Received", buffer, length); - m_buffer.addData(buffer + 40U, 33U); } diff --git a/NXDNIcomNetwork.h b/NXDNIcomNetwork.h index 18bdd97..3113a9f 100644 --- a/NXDNIcomNetwork.h +++ b/NXDNIcomNetwork.h @@ -33,26 +33,26 @@ public: CNXDNIcomNetwork(const std::string& localAddress, unsigned int localPort, const std::string& gatewayAddress, unsigned int gatewayPort, bool debug); virtual ~CNXDNIcomNetwork(); - virtual bool open(); + virtual bool open(); - virtual void enable(bool enabled); + virtual void enable(bool enabled); - virtual bool write(const unsigned char* data, NXDN_NETWORK_MESSAGE_TYPE type); + virtual bool write(const unsigned char* data, NXDN_NETWORK_MESSAGE_TYPE type); - virtual bool read(unsigned char* data); + virtual bool read(unsigned char* data); - virtual void reset(); + virtual void reset(); - virtual void close(); + virtual void close(); - virtual void clock(unsigned int ms); + virtual void clock(unsigned int ms); private: - CUDPSocket m_socket; - sockaddr_storage m_address; - unsigned int m_addrlen; - bool m_debug; - bool m_enabled; + CUDPSocket m_socket; + sockaddr_storage m_addr; + unsigned int m_addrLen; + bool m_debug; + bool m_enabled; CRingBuffer m_buffer; }; diff --git a/NXDNKenwoodNetwork.cpp b/NXDNKenwoodNetwork.cpp index 22165dd..67de39b 100644 --- a/NXDNKenwoodNetwork.cpp +++ b/NXDNKenwoodNetwork.cpp @@ -36,9 +36,10 @@ const unsigned int BUFFER_LENGTH = 200U; CNXDNKenwoodNetwork::CNXDNKenwoodNetwork(const std::string& localAddress, unsigned int localPort, const std::string& gwyAddress, unsigned int gwyPort, bool debug) : m_rtpSocket(localAddress, localPort + 0U), m_rtcpSocket(localAddress, localPort + 1U), -m_rtcpaddress(), -m_rtpaddress(), -m_addrlen(), +m_rtcpAddr(), +m_rtpAddr(), +m_rtcpAddrLen(0U), +m_rtpAddrLen(0U), m_enabled(false), m_headerSeen(false), m_seen1(false), @@ -65,8 +66,11 @@ m_random() m_sacch = new unsigned char[10U]; - CUDPSocket::lookup(gwyAddress, gwyPort + 1, m_rtcpaddress, m_addrlen); - CUDPSocket::lookup(gwyAddress, gwyPort, m_rtpaddress, m_addrlen); + if (CUDPSocket::lookup(gwyAddress, gwyPort + 1U, m_rtcpAddr, m_rtcpAddrLen) != 0) + m_rtcpAddrLen = 0U; + + if (CUDPSocket::lookup(gwyAddress, gwyPort + 0U, m_rtpAddr, m_rtpAddrLen) != 0) + m_rtpAddrLen = 0U; std::random_device rd; std::mt19937 mt(rd()); @@ -80,16 +84,17 @@ CNXDNKenwoodNetwork::~CNXDNKenwoodNetwork() bool CNXDNKenwoodNetwork::open() { + if (m_rtcpAddrLen == 0U || m_rtpAddrLen == 0U) { + LogError("Unable to resolve the address of the NXDN Gateway"); + return false; + } + LogMessage("Opening Kenwood connection"); - if (CUDPSocket::isNone(m_rtpaddress) || - CUDPSocket::isNone(m_rtcpaddress)) + if (!m_rtcpSocket.open(m_rtcpAddr)) return false; - if (!m_rtcpSocket.open()) - return false; - - if (!m_rtpSocket.open()) { + if (!m_rtpSocket.open(m_rtpAddr)) { m_rtcpSocket.close(); return false; } @@ -365,7 +370,7 @@ bool CNXDNKenwoodNetwork::writeRTPVoiceHeader(const unsigned char* data) if (m_debug) CUtils::dump(1U, "Kenwood Network RTP Data Sent", buffer, 47U); - return m_rtpSocket.write(buffer, 47U, m_rtpaddress, m_addrlen); + return m_rtpSocket.write(buffer, 47U, m_rtpAddr, m_rtpAddrLen); } bool CNXDNKenwoodNetwork::writeRTPVoiceTrailer(const unsigned char* data) @@ -411,7 +416,7 @@ bool CNXDNKenwoodNetwork::writeRTPVoiceTrailer(const unsigned char* data) if (m_debug) CUtils::dump(1U, "Kenwood Network RTP Data Sent", buffer, 47U); - return m_rtpSocket.write(buffer, 47U, m_rtpaddress, m_addrlen); + return m_rtpSocket.write(buffer, 47U, m_rtpAddr, m_rtpAddrLen); } bool CNXDNKenwoodNetwork::writeRTPVoiceData(const unsigned char* data) @@ -457,7 +462,7 @@ bool CNXDNKenwoodNetwork::writeRTPVoiceData(const unsigned char* data) if (m_debug) CUtils::dump(1U, "Kenwood Network RTP Data Sent", buffer, 59U); - return m_rtpSocket.write(buffer, 59U, m_rtpaddress, m_addrlen); + return m_rtpSocket.write(buffer, 59U, m_rtpAddr, m_rtpAddrLen); } bool CNXDNKenwoodNetwork::writeRTPDataHeader(const unsigned char* data) @@ -499,7 +504,7 @@ bool CNXDNKenwoodNetwork::writeRTPDataHeader(const unsigned char* data) if (m_debug) CUtils::dump(1U, "Kenwood Network RTP Data Sent", buffer, 42U); - return m_rtpSocket.write(buffer, 42U, m_rtpaddress, m_addrlen); + return m_rtpSocket.write(buffer, 42U, m_rtpAddr, m_rtpAddrLen); } bool CNXDNKenwoodNetwork::writeRTPDataTrailer(const unsigned char* data) @@ -541,7 +546,7 @@ bool CNXDNKenwoodNetwork::writeRTPDataTrailer(const unsigned char* data) if (m_debug) CUtils::dump(1U, "Kenwood Network RTP Data Sent", buffer, 42U); - return m_rtpSocket.write(buffer, 42U, m_rtpaddress, m_addrlen); + return m_rtpSocket.write(buffer, 42U, m_rtpAddr, m_rtpAddrLen); } bool CNXDNKenwoodNetwork::writeRTPDataData(const unsigned char* data) @@ -583,7 +588,7 @@ bool CNXDNKenwoodNetwork::writeRTPDataData(const unsigned char* data) if (m_debug) CUtils::dump(1U, "Kenwood Network RTP Data Sent", buffer, 42U); - return m_rtpSocket.write(buffer, 42U, m_rtpaddress, m_addrlen); + return m_rtpSocket.write(buffer, 42U, m_rtpAddr, m_rtpAddrLen); } bool CNXDNKenwoodNetwork::writeRTCPStart() @@ -643,7 +648,7 @@ bool CNXDNKenwoodNetwork::writeRTCPStart() if (m_debug) CUtils::dump(1U, "Kenwood Network RTCP Data Sent", buffer, 28U); - return m_rtcpSocket.write(buffer, 28U, m_rtcpaddress, m_addrlen); + return m_rtcpSocket.write(buffer, 28U, m_rtcpAddr, m_rtcpAddrLen); } bool CNXDNKenwoodNetwork::writeRTCPPing() @@ -685,7 +690,7 @@ bool CNXDNKenwoodNetwork::writeRTCPPing() if (m_debug) CUtils::dump(1U, "Kenwood Network RTCP Data Sent", buffer, 28U); - return m_rtcpSocket.write(buffer, 28U, m_rtcpaddress, m_addrlen); + return m_rtcpSocket.write(buffer, 28U, m_rtcpAddr, m_rtcpAddrLen); } bool CNXDNKenwoodNetwork::writeRTCPHang(unsigned char type, unsigned short src, unsigned short dst) @@ -728,7 +733,7 @@ bool CNXDNKenwoodNetwork::writeRTCPHang() if (m_debug) CUtils::dump(1U, "Kenwood Network RTCP Data Sent", buffer, 20U); - return m_rtcpSocket.write(buffer, 20U, m_rtcpaddress, m_addrlen); + return m_rtcpSocket.write(buffer, 20U, m_rtcpAddr, m_rtcpAddrLen); } bool CNXDNKenwoodNetwork::read(unsigned char* data) @@ -764,11 +769,16 @@ unsigned int CNXDNKenwoodNetwork::readRTP(unsigned char* data) unsigned char buffer[BUFFER_LENGTH]; sockaddr_storage address; - unsigned int addrlen; - int length = m_rtpSocket.read(buffer, BUFFER_LENGTH, address, addrlen); - if (length <= 0 || !CUDPSocket::match(m_rtpaddress, address, IMT_ADDRESS_ONLY)) + unsigned int addrLen; + int length = m_rtpSocket.read(buffer, BUFFER_LENGTH, address, addrLen); + if (length <= 0) return 0U; + if (!CUDPSocket::match(m_rtpAddr, address, IMT_ADDRESS_ONLY)) { + LogMessage("NXDN, RTP packet received from an invalid source"); + return 0U; + } + if (!m_enabled) return 0U; @@ -789,9 +799,14 @@ unsigned int CNXDNKenwoodNetwork::readRTCP(unsigned char* data) sockaddr_storage address; unsigned int addrlen; int length = m_rtcpSocket.read(buffer, BUFFER_LENGTH, address, addrlen); - if (length <= 0 || !CUDPSocket::match(m_rtcpaddress, address, IMT_ADDRESS_ONLY)) + if (length <= 0) return 0U; + if (!CUDPSocket::match(m_rtpAddr, address, IMT_ADDRESS_ONLY)) { + LogMessage("NXDN, RTCP packet received from an invalid source"); + return 0U; + } + if (!m_enabled) return 0U; diff --git a/NXDNKenwoodNetwork.h b/NXDNKenwoodNetwork.h index 3466569..af28618 100644 --- a/NXDNKenwoodNetwork.h +++ b/NXDNKenwoodNetwork.h @@ -34,66 +34,67 @@ public: virtual bool open(); - virtual void enable(bool enabled); + virtual void enable(bool enabled); - virtual bool write(const unsigned char* data, NXDN_NETWORK_MESSAGE_TYPE type); + virtual bool write(const unsigned char* data, NXDN_NETWORK_MESSAGE_TYPE type); virtual bool read(unsigned char* data); - virtual void reset(); + virtual void reset(); - virtual void close(); + virtual void close(); - virtual void clock(unsigned int ms); + virtual void clock(unsigned int ms); private: - CUDPSocket m_rtpSocket; - CUDPSocket m_rtcpSocket; - sockaddr_storage m_rtcpaddress; - sockaddr_storage m_rtpaddress; - unsigned int m_addrlen; - bool m_enabled; - bool m_headerSeen; - bool m_seen1; - bool m_seen2; - bool m_seen3; - bool m_seen4; - unsigned char* m_sacch; - uint8_t m_sessionId; - uint16_t m_seqNo; - unsigned int m_ssrc; - bool m_debug; - uint32_t m_startSecs; - uint32_t m_startUSecs; - CTimer m_rtcpTimer; - CTimer m_hangTimer; - unsigned char m_hangType; - unsigned short m_hangSrc; - unsigned short m_hangDst; - std::mt19937 m_random; + CUDPSocket m_rtpSocket; + CUDPSocket m_rtcpSocket; + sockaddr_storage m_rtcpAddr; + sockaddr_storage m_rtpAddr; + unsigned int m_rtcpAddrLen; + unsigned int m_rtpAddrLen; + bool m_enabled; + bool m_headerSeen; + bool m_seen1; + bool m_seen2; + bool m_seen3; + bool m_seen4; + unsigned char* m_sacch; + uint8_t m_sessionId; + uint16_t m_seqNo; + unsigned int m_ssrc; + bool m_debug; + uint32_t m_startSecs; + uint32_t m_startUSecs; + CTimer m_rtcpTimer; + CTimer m_hangTimer; + unsigned char m_hangType; + unsigned short m_hangSrc; + unsigned short m_hangDst; + std::mt19937 m_random; - bool processIcomVoiceHeader(const unsigned char* data); - bool processIcomVoiceData(const unsigned char* data); - bool processIcomDataHeader(const unsigned char* data); - bool processIcomDataData(const unsigned char* data); - bool processIcomDataTrailer(const unsigned char* data); - bool processKenwoodVoiceHeader(unsigned char* data); - bool processKenwoodVoiceData(unsigned char* data); - bool processKenwoodVoiceLateEntry(unsigned char* data); - bool processKenwoodData(unsigned char* data); - bool writeRTPVoiceHeader(const unsigned char* data); - bool writeRTPVoiceData(const unsigned char* data); - bool writeRTPVoiceTrailer(const unsigned char* data); - bool writeRTPDataHeader(const unsigned char* data); - bool writeRTPDataData(const unsigned char* data); - bool writeRTPDataTrailer(const unsigned char* data); - bool writeRTCPStart(); - bool writeRTCPPing(); - bool writeRTCPHang(unsigned char type, unsigned short src, unsigned short dst); - bool writeRTCPHang(); - unsigned int readRTP(unsigned char* data); - unsigned int readRTCP(unsigned char* data); - unsigned long getTimeStamp() const; + bool processIcomVoiceHeader(const unsigned char* data); + bool processIcomVoiceData(const unsigned char* data); + bool processIcomDataHeader(const unsigned char* data); + bool processIcomDataData(const unsigned char* data); + bool processIcomDataTrailer(const unsigned char* data); + bool processKenwoodVoiceHeader(unsigned char* data); + bool processKenwoodVoiceData(unsigned char* data); + bool processKenwoodVoiceLateEntry(unsigned char* data); + bool processKenwoodData(unsigned char* data); + bool writeRTPVoiceHeader(const unsigned char* data); + bool writeRTPVoiceData(const unsigned char* data); + bool writeRTPVoiceTrailer(const unsigned char* data); + bool writeRTPDataHeader(const unsigned char* data); + bool writeRTPDataData(const unsigned char* data); + bool writeRTPDataTrailer(const unsigned char* data); + bool writeRTCPStart(); + bool writeRTCPPing(); + bool writeRTCPHang(unsigned char type, unsigned short src, unsigned short dst); + bool writeRTCPHang(); + unsigned int readRTP(unsigned char* data); + unsigned int readRTCP(unsigned char* data); + unsigned long getTimeStamp() const; }; #endif diff --git a/P25Network.cpp b/P25Network.cpp index 8485d2f..3bb39b9 100644 --- a/P25Network.cpp +++ b/P25Network.cpp @@ -1,5 +1,5 @@ /* - * Copyright (C) 2009-2014,2016,2019 by Jonathan Naylor G4KLX + * Copyright (C) 2009-2014,2016,2019,2020 by Jonathan Naylor G4KLX * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -89,14 +89,15 @@ const unsigned int BUFFER_LENGTH = 100U; CP25Network::CP25Network(const std::string& gatewayAddress, unsigned int gatewayPort, unsigned int localPort, bool debug) : m_socket(localPort), -m_address(), -m_addrlen(), +m_addr(), +m_addrLen(0U), m_debug(debug), m_enabled(false), m_buffer(1000U, "P25 Network"), m_audio() { - CUDPSocket::lookup(gatewayAddress, gatewayPort, m_address, m_addrlen); + if (CUDPSocket::lookup(gatewayAddress, gatewayPort, m_addr, m_addrLen) != 0) + m_addrLen = 0U; } CP25Network::~CP25Network() @@ -105,12 +106,14 @@ CP25Network::~CP25Network() bool CP25Network::open() { + if (m_addrLen == 0U) { + LogError("Unable to resolve the address of the P25 Gateway"); + return false; + } + LogMessage("Opening P25 network connection"); - if (CUDPSocket::isNone(m_address)) - return false; - - return m_socket.open(m_address.ss_family); + return m_socket.open(m_addr); } bool CP25Network::writeLDU1(const unsigned char* ldu1, const CP25Data& control, const CP25LowSpeedData& lsd, bool end) @@ -126,7 +129,7 @@ bool CP25Network::writeLDU1(const unsigned char* ldu1, const CP25Data& control, if (m_debug) CUtils::dump(1U, "P25 Network LDU1 Sent", buffer, 22U); - bool ret = m_socket.write(buffer, 22U, m_address, m_addrlen); + bool ret = m_socket.write(buffer, 22U, m_addr, m_addrLen); if (!ret) return false; @@ -137,7 +140,7 @@ bool CP25Network::writeLDU1(const unsigned char* ldu1, const CP25Data& control, if (m_debug) CUtils::dump(1U, "P25 Network LDU1 Sent", buffer, 14U); - ret = m_socket.write(buffer, 14U, m_address, m_addrlen); + ret = m_socket.write(buffer, 14U, m_addr, m_addrLen); if (!ret) return false; @@ -150,7 +153,7 @@ bool CP25Network::writeLDU1(const unsigned char* ldu1, const CP25Data& control, if (m_debug) CUtils::dump(1U, "P25 Network LDU1 Sent", buffer, 17U); - ret = m_socket.write(buffer, 17U, m_address, m_addrlen); + ret = m_socket.write(buffer, 17U, m_addr, m_addrLen); if (!ret) return false; @@ -165,7 +168,7 @@ bool CP25Network::writeLDU1(const unsigned char* ldu1, const CP25Data& control, if (m_debug) CUtils::dump(1U, "P25 Network LDU1 Sent", buffer, 17U); - ret = m_socket.write(buffer, 17U, m_address, m_addrlen); + ret = m_socket.write(buffer, 17U, m_addr, m_addrLen); if (!ret) return false; @@ -180,7 +183,7 @@ bool CP25Network::writeLDU1(const unsigned char* ldu1, const CP25Data& control, if (m_debug) CUtils::dump(1U, "P25 Network LDU1 Sent", buffer, 17U); - ret = m_socket.write(buffer, 17U, m_address, m_addrlen); + ret = m_socket.write(buffer, 17U, m_addr, m_addrLen); if (!ret) return false; @@ -191,7 +194,7 @@ bool CP25Network::writeLDU1(const unsigned char* ldu1, const CP25Data& control, if (m_debug) CUtils::dump(1U, "P25 Network LDU1 Sent", buffer, 17U); - ret = m_socket.write(buffer, 17U, m_address, m_addrlen); + ret = m_socket.write(buffer, 17U, m_addr, m_addrLen); if (!ret) return false; @@ -202,7 +205,7 @@ bool CP25Network::writeLDU1(const unsigned char* ldu1, const CP25Data& control, if (m_debug) CUtils::dump(1U, "P25 Network LDU1 Sent", buffer, 17U); - ret = m_socket.write(buffer, 17U, m_address, m_addrlen); + ret = m_socket.write(buffer, 17U, m_addr, m_addrLen); if (!ret) return false; @@ -213,7 +216,7 @@ bool CP25Network::writeLDU1(const unsigned char* ldu1, const CP25Data& control, if (m_debug) CUtils::dump(1U, "P25 Network LDU1 Sent", buffer, 17U); - ret = m_socket.write(buffer, 17U, m_address, m_addrlen); + ret = m_socket.write(buffer, 17U, m_addr, m_addrLen); if (!ret) return false; @@ -226,7 +229,7 @@ bool CP25Network::writeLDU1(const unsigned char* ldu1, const CP25Data& control, if (m_debug) CUtils::dump(1U, "P25 Network LDU1 Sent", buffer, 16U); - ret = m_socket.write(buffer, 16U, m_address, m_addrlen); + ret = m_socket.write(buffer, 16U, m_addr, m_addrLen); if (!ret) return false; @@ -234,7 +237,7 @@ bool CP25Network::writeLDU1(const unsigned char* ldu1, const CP25Data& control, if (m_debug) CUtils::dump(1U, "P25 Network END Sent", REC80, 17U); - ret = m_socket.write(REC80, 17U, m_address, m_addrlen); + ret = m_socket.write(REC80, 17U, m_addr, m_addrLen); if (!ret) return false; } @@ -255,7 +258,7 @@ bool CP25Network::writeLDU2(const unsigned char* ldu2, const CP25Data& control, if (m_debug) CUtils::dump(1U, "P25 Network LDU2 Sent", buffer, 22U); - bool ret = m_socket.write(buffer, 22U, m_address, m_addrlen); + bool ret = m_socket.write(buffer, 22U, m_addr, m_addrLen); if (!ret) return false; @@ -266,7 +269,7 @@ bool CP25Network::writeLDU2(const unsigned char* ldu2, const CP25Data& control, if (m_debug) CUtils::dump(1U, "P25 Network LDU2 Sent", buffer, 14U); - ret = m_socket.write(buffer, 14U, m_address, m_addrlen); + ret = m_socket.write(buffer, 14U, m_addr, m_addrLen); if (!ret) return false; @@ -283,7 +286,7 @@ bool CP25Network::writeLDU2(const unsigned char* ldu2, const CP25Data& control, if (m_debug) CUtils::dump(1U, "P25 Network LDU2 Sent", buffer, 17U); - ret = m_socket.write(buffer, 17U, m_address, m_addrlen); + ret = m_socket.write(buffer, 17U, m_addr, m_addrLen); if (!ret) return false; @@ -297,7 +300,7 @@ bool CP25Network::writeLDU2(const unsigned char* ldu2, const CP25Data& control, if (m_debug) CUtils::dump(1U, "P25 Network LDU2 Sent", buffer, 17U); - ret = m_socket.write(buffer, 17U, m_address, m_addrlen); + ret = m_socket.write(buffer, 17U, m_addr, m_addrLen); if (!ret) return false; @@ -311,7 +314,7 @@ bool CP25Network::writeLDU2(const unsigned char* ldu2, const CP25Data& control, if (m_debug) CUtils::dump(1U, "P25 Network LDU2 Sent", buffer, 17U); - ret = m_socket.write(buffer, 17U, m_address, m_addrlen); + ret = m_socket.write(buffer, 17U, m_addr, m_addrLen); if (!ret) return false; @@ -326,7 +329,7 @@ bool CP25Network::writeLDU2(const unsigned char* ldu2, const CP25Data& control, if (m_debug) CUtils::dump(1U, "P25 Network LDU2 Sent", buffer, 17U); - ret = m_socket.write(buffer, 17U, m_address, m_addrlen); + ret = m_socket.write(buffer, 17U, m_addr, m_addrLen); if (!ret) return false; @@ -337,7 +340,7 @@ bool CP25Network::writeLDU2(const unsigned char* ldu2, const CP25Data& control, if (m_debug) CUtils::dump(1U, "P25 Network LDU2 Sent", buffer, 17U); - ret = m_socket.write(buffer, 17U, m_address, m_addrlen); + ret = m_socket.write(buffer, 17U, m_addr, m_addrLen); if (!ret) return false; @@ -348,7 +351,7 @@ bool CP25Network::writeLDU2(const unsigned char* ldu2, const CP25Data& control, if (m_debug) CUtils::dump(1U, "P25 Network LDU2 Sent", buffer, 17U); - ret = m_socket.write(buffer, 17U, m_address, m_addrlen); + ret = m_socket.write(buffer, 17U, m_addr, m_addrLen); if (!ret) return false; @@ -361,7 +364,7 @@ bool CP25Network::writeLDU2(const unsigned char* ldu2, const CP25Data& control, if (m_debug) CUtils::dump(1U, "P25 Network LDU2 Sent", buffer, 16U); - ret = m_socket.write(buffer, 16U, m_address, m_addrlen); + ret = m_socket.write(buffer, 16U, m_addr, m_addrLen); if (!ret) return false; @@ -369,7 +372,7 @@ bool CP25Network::writeLDU2(const unsigned char* ldu2, const CP25Data& control, if (m_debug) CUtils::dump(1U, "P25 Network END Sent", REC80, 17U); - ret = m_socket.write(REC80, 17U, m_address, m_addrlen); + ret = m_socket.write(REC80, 17U, m_addr, m_addrLen); if (!ret) return false; } @@ -382,11 +385,16 @@ void CP25Network::clock(unsigned int ms) unsigned char buffer[BUFFER_LENGTH]; sockaddr_storage address; - unsigned int addrlen; - int length = m_socket.read(buffer, BUFFER_LENGTH, address, addrlen); - if (length <= 0 || !CUDPSocket::match(m_address, address)) + unsigned int addrLen; + int length = m_socket.read(buffer, BUFFER_LENGTH, address, addrLen); + if (length <= 0) return; + if (!CUDPSocket::match(m_addr, address)) { + LogMessage("P25, packet received from an invalid source"); + return; + } + if (!m_enabled) return; diff --git a/P25Network.h b/P25Network.h index 009c994..4c52761 100644 --- a/P25Network.h +++ b/P25Network.h @@ -1,5 +1,5 @@ /* - * Copyright (C) 2009-2014,2016 by Jonathan Naylor G4KLX + * Copyright (C) 2009-2014,2016,2020 by Jonathan Naylor G4KLX * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -48,13 +48,13 @@ public: void clock(unsigned int ms); private: - CUDPSocket m_socket; - sockaddr_storage m_address; - unsigned int m_addrlen; - bool m_debug; - bool m_enabled; + CUDPSocket m_socket; + sockaddr_storage m_addr; + unsigned int m_addrLen; + bool m_debug; + bool m_enabled; CRingBuffer m_buffer; - CP25Audio m_audio; + CP25Audio m_audio; }; #endif diff --git a/POCSAGNetwork.cpp b/POCSAGNetwork.cpp index e8e0d65..c0437bd 100644 --- a/POCSAGNetwork.cpp +++ b/POCSAGNetwork.cpp @@ -1,5 +1,5 @@ /* - * Copyright (C) 2018,2019 by Jonathan Naylor G4KLX + * Copyright (C) 2018,2019,2020 by Jonathan Naylor G4KLX * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -30,13 +30,14 @@ const unsigned int BUFFER_LENGTH = 200U; CPOCSAGNetwork::CPOCSAGNetwork(const std::string& myAddress, unsigned int myPort, const std::string& gatewayAddress, unsigned int gatewayPort, bool debug) : m_socket(myAddress, myPort), -m_address(), -m_addrlen(), +m_addr(), +m_addrLen(0U), m_debug(debug), m_enabled(false), m_buffer(1000U, "POCSAG Network") { - CUDPSocket::lookup(gatewayAddress, gatewayPort, m_address, m_addrlen); + if (CUDPSocket::lookup(gatewayAddress, gatewayPort, m_addr, m_addrLen) != 0) + m_addrLen = 0U; } CPOCSAGNetwork::~CPOCSAGNetwork() @@ -45,10 +46,12 @@ CPOCSAGNetwork::~CPOCSAGNetwork() bool CPOCSAGNetwork::open() { - LogMessage("Opening POCSAG network connection"); - - if (CUDPSocket::isNone(m_address)) + if (m_addrLen == 0U) { + LogError("Unable to resolve the address of the DAPNET Gateway"); return false; + } + + LogMessage("Opening POCSAG network connection"); return m_socket.open(); } @@ -58,11 +61,19 @@ void CPOCSAGNetwork::clock(unsigned int ms) unsigned char buffer[BUFFER_LENGTH]; sockaddr_storage address; - unsigned int addrlen; - int length = m_socket.read(buffer, BUFFER_LENGTH, address, addrlen); - if (length <= 0 || !CUDPSocket::match(m_address, address)) + unsigned int addrLen; + int length = m_socket.read(buffer, BUFFER_LENGTH, address, addrLen); + if (length <= 0) return; + if (!CUDPSocket::match(m_addr, address)) { + LogMessage("POCSAG, packet received from an invalid source"); + return; + } + + if (m_debug) + CUtils::dump(1U, "POCSAG Network Data Received", buffer, length); + // Invalid packet type? if (::memcmp(buffer, "POCSAG", 6U) != 0) return; @@ -70,9 +81,6 @@ void CPOCSAGNetwork::clock(unsigned int ms) if (!m_enabled) return; - if (m_debug) - CUtils::dump(1U, "POCSAG Network Data Received", buffer, length); - unsigned char len = length - 6U; m_buffer.addData(&len, 1U); m_buffer.addData(buffer + 6U, length - 6U); @@ -112,7 +120,7 @@ void CPOCSAGNetwork::enable(bool enabled) unsigned char c = enabled ? 0x00U : 0xFFU; - m_socket.write(&c, 1U, m_address, m_addrlen); + m_socket.write(&c, 1U, m_addr, m_addrLen); m_enabled = enabled; } diff --git a/POCSAGNetwork.h b/POCSAGNetwork.h index dd3945b..693f5ac 100644 --- a/POCSAGNetwork.h +++ b/POCSAGNetwork.h @@ -1,5 +1,5 @@ /* - * Copyright (C) 2018 by Jonathan Naylor G4KLX + * Copyright (C) 2018,2020 by Jonathan Naylor G4KLX * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -45,11 +45,11 @@ public: void clock(unsigned int ms); private: - CUDPSocket m_socket; - sockaddr_storage m_address; - unsigned int m_addrlen; - bool m_debug; - bool m_enabled; + CUDPSocket m_socket; + sockaddr_storage m_addr; + unsigned int m_addrLen; + bool m_debug; + bool m_enabled; CRingBuffer m_buffer; }; diff --git a/RemoteCommand.cpp b/RemoteCommand.cpp index 25b07fd..addc0c6 100644 --- a/RemoteCommand.cpp +++ b/RemoteCommand.cpp @@ -1,5 +1,5 @@ /* - * Copyright (C) 2019 by Jonathan Naylor G4KLX + * Copyright (C) 2019,2020 by Jonathan Naylor G4KLX * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -61,17 +61,20 @@ CRemoteCommand::~CRemoteCommand() int CRemoteCommand::send(const std::string& command) { - sockaddr_storage address; - unsigned int addrlen; - CUDPSocket::lookup("127.0.0.1", m_port, address, addrlen); + sockaddr_storage addr; + unsigned int addrLen; + if (CUDPSocket::lookup("127.0.0.1", m_port, addr, addrLen) != 0) { + LogError("Unable to resolve the address of the host"); + return 1; + } CUDPSocket socket(0U); - bool ret = socket.open(address.ss_family); + bool ret = socket.open(addr); if (!ret) return 1; - ret = socket.write((unsigned char*)command.c_str(), command.length(), address, addrlen); + ret = socket.write((unsigned char*)command.c_str(), command.length(), addr, addrLen); if (!ret) { socket.close(); return 1; diff --git a/Version.h b/Version.h index 23ae81e..a988871 100644 --- a/Version.h +++ b/Version.h @@ -19,6 +19,6 @@ #if !defined(VERSION_H) #define VERSION_H -const char* VERSION = "20200830"; +const char* VERSION = "20200906"; #endif diff --git a/YSFNetwork.cpp b/YSFNetwork.cpp index 7ddc996..099a550 100644 --- a/YSFNetwork.cpp +++ b/YSFNetwork.cpp @@ -1,5 +1,5 @@ /* - * Copyright (C) 2009-2014,2016,2019 by Jonathan Naylor G4KLX + * Copyright (C) 2009-2014,2016,2019,2020 by Jonathan Naylor G4KLX * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -30,8 +30,8 @@ const unsigned int BUFFER_LENGTH = 200U; CYSFNetwork::CYSFNetwork(const std::string& myAddress, unsigned int myPort, const std::string& gatewayAddress, unsigned int gatewayPort, const std::string& callsign, bool debug) : m_socket(myAddress, myPort), -m_address(), -m_addrlen(), +m_addr(), +m_addrLen(0U), m_callsign(), m_debug(debug), m_enabled(false), @@ -42,7 +42,8 @@ m_tag(NULL) m_callsign = callsign; m_callsign.resize(YSF_CALLSIGN_LENGTH, ' '); - CUDPSocket::lookup(gatewayAddress, gatewayPort, m_address, m_addrlen); + if (CUDPSocket::lookup(gatewayAddress, gatewayPort, m_addr, m_addrLen) != 0) + m_addrLen = 0U; m_tag = new unsigned char[YSF_CALLSIGN_LENGTH]; ::memset(m_tag, ' ', YSF_CALLSIGN_LENGTH); @@ -55,14 +56,16 @@ CYSFNetwork::~CYSFNetwork() bool CYSFNetwork::open() { - LogMessage("Opening YSF network connection"); - - if (CUDPSocket::isNone(m_address)) + if (m_addrLen == 0U) { + LogError("Unable to resolve the address of the YSF Gateway"); return false; + } + + LogMessage("Opening YSF network connection"); m_pollTimer.start(); - return m_socket.open(); + return m_socket.open(m_addr); } bool CYSFNetwork::write(const unsigned char* src, const unsigned char* dest, const unsigned char* data, unsigned int count, bool end) @@ -97,7 +100,7 @@ bool CYSFNetwork::write(const unsigned char* src, const unsigned char* dest, con if (m_debug) CUtils::dump(1U, "YSF Network Data Sent", buffer, 155U); - return m_socket.write(buffer, 155U, m_address, m_addrlen); + return m_socket.write(buffer, 155U, m_addr, m_addrLen); } bool CYSFNetwork::writePoll() @@ -115,7 +118,7 @@ bool CYSFNetwork::writePoll() if (m_debug) CUtils::dump(1U, "YSF Network Poll Sent", buffer, 14U); - return m_socket.write(buffer, 14U, m_address, m_addrlen); + return m_socket.write(buffer, 14U, m_addr, m_addrLen); } void CYSFNetwork::clock(unsigned int ms) @@ -129,11 +132,16 @@ void CYSFNetwork::clock(unsigned int ms) unsigned char buffer[BUFFER_LENGTH]; sockaddr_storage address; - unsigned int addrlen; - int length = m_socket.read(buffer, BUFFER_LENGTH, address, addrlen); - if (length <= 0 || !CUDPSocket::match(m_address, address)) + unsigned int addrLen; + int length = m_socket.read(buffer, BUFFER_LENGTH, address, addrLen); + if (length <= 0) return; + if (!CUDPSocket::match(m_addr, address)) { + LogMessage("YSF, packet received from an invalid source"); + return; + } + // Ignore incoming polls if (::memcmp(buffer, "YSFP", 4U) == 0) return; diff --git a/YSFNetwork.h b/YSFNetwork.h index 292364d..aef43d3 100644 --- a/YSFNetwork.h +++ b/YSFNetwork.h @@ -1,5 +1,5 @@ /* - * Copyright (C) 2009-2014,2016 by Jonathan Naylor G4KLX + * Copyright (C) 2009-2014,2016,2020 by Jonathan Naylor G4KLX * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -47,15 +47,15 @@ public: void clock(unsigned int ms); private: - CUDPSocket m_socket; - sockaddr_storage m_address; - unsigned int m_addrlen; - std::string m_callsign; - bool m_debug; - bool m_enabled; + CUDPSocket m_socket; + sockaddr_storage m_addr; + unsigned int m_addrLen; + std::string m_callsign; + bool m_debug; + bool m_enabled; CRingBuffer m_buffer; - CTimer m_pollTimer; - unsigned char* m_tag; + CTimer m_pollTimer; + unsigned char* m_tag; bool writePoll(); };