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c4e676d36d
* add PMTU discovery #2329 * add socket gather/scatter capabilities #2330 (win, udp) * enable WSAPoll * add FastMemoryPool * add receiveFrom() with native args * allow copying of StringTokenizer * add AtomicFlag and SpinlockMutex * update .gitignore * UDPServer and client #2343 (windows) * fix warnings * fix warnings * regenerate Net VS solutions * regenerate CppUnit projects/solutions * clang fixes * gcc fixes * try to fix travis * more travis fixes * more travis fixes * handle UDPClient exception * fix makefiles and init order warnings * add UNIX gather/scatter sendto/recvfrom implementations and tests * run travis tests as sudo * try to run tests as sudo, 2nd attempt * fix warning * use mutex in reactor * lock-order-inversion in SocketReactor #2346 * add PMTU discovery #2329 (linux) * ICMPSocket does not check reply address #1921 * remove some ignored tests * add PMTU discovery #2329 (reconcile logic with #1921) * fix native receiveFrome() * reinstate ignoring of proxy errors * add testMTU to ignore list * add include atomic * NTPClient not checking reply address #2348 * some ICMP/MTU fixes * UDPSocketReader cleanup * resolve some socket inheritance warnings * add NTP time sync to ignored tests * SocketNotifier not thread-safe #2345 * prevent x64 samples build attempt for win32 * build TestApp and Library * fix ICMP tests * regen VS projects * regen VS projects and add missing 2012 files * remove debug prints
105 lines
1.7 KiB
C++
105 lines
1.7 KiB
C++
//
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// ICMPPacketImpl.cpp
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//
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// Library: Net
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// Package: ICMP
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// Module: ICMPPacketImpl
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//
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// Copyright (c) 2006, Applied Informatics Software Engineering GmbH.
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// and Contributors.
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//
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// SPDX-License-Identifier: BSL-1.0
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//
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#include "Poco/Net/ICMPPacketImpl.h"
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#include "Poco/Net/NetException.h"
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#include "Poco/Timestamp.h"
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#include "Poco/Timespan.h"
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#include "Poco/NumberFormatter.h"
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#include <sstream>
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using Poco::InvalidArgumentException;
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using Poco::Timestamp;
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using Poco::Timespan;
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using Poco::NumberFormatter;
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using Poco::UInt8;
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using Poco::UInt16;
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using Poco::Int32;
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namespace Poco {
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namespace Net {
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const UInt16 ICMPPacketImpl::MAX_PACKET_SIZE = 65535;
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const UInt16 ICMPPacketImpl::MAX_PAYLOAD_SIZE = 65507;
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const UInt16 ICMPPacketImpl::MAX_SEQ_VALUE = 65535;
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ICMPPacketImpl::ICMPPacketImpl(int dataSize):
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_seq(0),
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_pPacket(new UInt8[MAX_PACKET_SIZE]),
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_dataSize(dataSize)
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{
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if (_dataSize > MAX_PACKET_SIZE)
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throw InvalidArgumentException("Packet size must be <= " + NumberFormatter::format(MAX_PACKET_SIZE));
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}
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ICMPPacketImpl::~ICMPPacketImpl()
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{
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delete [] _pPacket;
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}
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void ICMPPacketImpl::setDataSize(int dataSize)
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{
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_dataSize = dataSize;
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initPacket();
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}
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int ICMPPacketImpl::getDataSize() const
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{
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return _dataSize;
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}
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const Poco::UInt8* ICMPPacketImpl::packet(bool init)
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{
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if (init) initPacket();
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return _pPacket;
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}
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unsigned short ICMPPacketImpl::checksum(UInt16 *addr, Int32 len)
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{
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Int32 nleft = len;
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UInt16* w = addr;
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UInt16 answer;
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Int32 sum = 0;
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while (nleft > 1)
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{
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sum += *w++;
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nleft -= sizeof(UInt16);
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}
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if (nleft == 1)
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{
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UInt16 u = 0;
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*(UInt8*) (&u) = *(UInt8*) w;
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sum += u;
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}
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sum = (sum >> 16) + (sum & 0xffff);
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sum += (sum >> 16);
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answer = ~sum;
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return answer;
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}
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} } // namespace Poco::Net
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