mirror of
https://github.com/Telecominfraproject/wlan-cloud-lib-poco.git
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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
148 lines
2.8 KiB
C++
148 lines
2.8 KiB
C++
//
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// ICMPSocket.cpp
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//
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// Library: Net
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// Package: ICMP
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// Module: ICMPSocket
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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/ICMPSocket.h"
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#include "Poco/Net/ICMPSocketImpl.h"
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#include "Poco/Exception.h"
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#include "Poco/Net/NetException.h"
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using Poco::InvalidArgumentException;
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namespace Poco {
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namespace Net {
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ICMPSocket::ICMPSocket(IPAddress::Family family, int dataSize, int ttl, int timeout):
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Socket(new ICMPSocketImpl(family, dataSize, ttl, timeout))
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{
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}
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ICMPSocket::ICMPSocket(const Socket& socket):
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Socket(socket)
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{
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if (!dynamic_cast<ICMPSocketImpl*>(impl()))
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throw InvalidArgumentException("Cannot assign incompatible socket");
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}
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ICMPSocket::ICMPSocket(SocketImpl* pImpl):
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Socket(pImpl)
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{
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if (!dynamic_cast<ICMPSocketImpl*>(impl()))
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throw InvalidArgumentException("Cannot assign incompatible socket");
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}
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ICMPSocket::~ICMPSocket()
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{
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}
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ICMPSocket& ICMPSocket::operator = (const Socket& socket)
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{
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if (dynamic_cast<ICMPSocketImpl*>(socket.impl()))
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Socket::operator = (socket);
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else
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throw InvalidArgumentException("Cannot assign incompatible socket");
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return *this;
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}
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int ICMPSocket::sendTo(const SocketAddress& address, int flags)
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{
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return impl()->sendTo(0, 0, address, flags);
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}
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int ICMPSocket::receiveFrom(SocketAddress& address, int flags)
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{
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return impl()->receiveFrom(0, 0, address, flags);
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}
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int ICMPSocket::dataSize() const
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{
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return static_cast<ICMPSocketImpl*>(impl())->dataSize();
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}
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int ICMPSocket::packetSize() const
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{
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return static_cast<ICMPSocketImpl*>(impl())->packetSize();
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}
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int ICMPSocket::ttl() const
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{
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return static_cast<ICMPSocketImpl*>(impl())->ttl();
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}
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int ICMPSocket::timeout() const
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{
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return static_cast<ICMPSocketImpl*>(impl())->timeout();
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}
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Poco::UInt16 ICMPSocket::mtu(const SocketAddress& address, Poco::UInt16 sz)
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{
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if (address.family() != IPAddress::IPv4) return 0;
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SocketAddress returnAddress(address);
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for (; sz >= 68 /*RFC791*/; --sz)
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{
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ICMPSocket icmpSocket(address.family(), sz);
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#ifdef IP_DONTFRAGMENT
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icmpSocket.setOption(IPPROTO_IP, IP_DONTFRAGMENT, 1);
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#elif defined(IP_MTU_DISCOVER)
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icmpSocket.setOption(IPPROTO_IP, IP_MTU_DISCOVER, IP_PMTUDISC_DO);
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#elif defined(IP_DONTFRAG)
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icmpSocket.setOption(IPPROTO_IP, IP_DONTFRAG, 1);
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#else
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throw NotImplementedException("ICMPSocket::mtu()");
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#endif
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try
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{
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icmpSocket.sendTo(address);
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icmpSocket.receiveFrom(returnAddress);
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poco_assert_dbg (returnAddress == address);
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return sz;
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}
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catch (ICMPFragmentationException&)
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{
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// PMTU fragmentation, continue discovery
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continue;
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}
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catch (NetException& ex)
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{
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// local MTU limit, continue discovery
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if (ex.code() == POCO_EMSGSIZE)
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continue;
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}
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catch (Exception&)
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{
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return 0;
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}
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}
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return 0;
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}
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} } // namespace Poco::Net
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