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1267 lines (1024 loc) · 29.2 KB
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//
// NetworkInterface.cpp
//
// $Id: //poco/1.4/Net/src/NetworkInterface.cpp#9 $
//
// Library: Net
// Package: Sockets
// Module: NetworkInterface
//
// Copyright (c) 2005-2006, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// Permission is hereby granted, free of charge, to any person or organization
// obtaining a copy of the software and accompanying documentation covered by
// this license (the "Software") to use, reproduce, display, distribute ,
// execute, and transmit the Software, and to prepare derivative works of the
// Software, and to permit third-parties to whom the Software is furnished to
// do so, all subject to the following:
//
// The copyright notices in the Software and this entire statement, including
// the above license grant, this restriction and the following disclaimer,
// must be included in all copies of the Software, in whole or in part, and
// all derivative works of the Software, unless such copies or derivative
// works are solely in the form of machine-executable object code generated by
// a source language processor.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
//
#include "Poco/Net/NetworkInterface.h"
#include "Poco/Net/DatagramSocket.h"
#include "Poco/Net/NetException.h"
#include "Poco/NumberFormatter.h"
#include "Poco/RefCountedObject.h"
#include "Poco/Format.h"
#if defined(POCO_OS_FAMILY_WINDOWS)
#if defined(POCO_WIN32_UTF8)
#include "Poco/UnicodeConverter.h"
#endif
#include <iphlpapi.h>
#include <ipifcons.h>
#endif
#include <cstring>
using Poco::NumberFormatter;
using Poco::FastMutex;
using Poco::format;
namespace Poco {
namespace Net {
//
// NetworkInterfaceImpl
//
class NetworkInterfaceImpl: public Poco::RefCountedObject
{
public:
typedef NetworkInterface::AddressTuple AddressTuple;
typedef NetworkInterface::AddressList AddressList;
NetworkInterfaceImpl(int index = -1);
NetworkInterfaceImpl(const std::string& name, const std::string& displayName, const IPAddress& address, int index = -1);
NetworkInterfaceImpl(const std::string& name, const std::string& displayName, const IPAddress& address, const IPAddress& subnetMask, const IPAddress& broadcastAddress, int index = -1);
int index() const;
const std::string& name() const;
const std::string& displayName() const;
void addAddress(const AddressTuple& address);
const IPAddress& address(std::size_t index = 0) const;
const NetworkInterface::AddressList& addressList() const;
bool hasAddress(const IPAddress& address) const;
const IPAddress& subnetMask(std::size_t index = 0) const;
const IPAddress& broadcastAddress(std::size_t index = 0) const;
const IPAddress& destAddress(std::size_t index = 0) const;
bool supportsIPv4() const;
bool supportsIPv6() const;
void setName(const std::string& name);
void setDisplayName(const std::string& name);
void addAddress(const IPAddress& addr);
int mtu() const;
int ifindex() const;
bool broadcast() const;
bool loopback() const;
bool multicast() const;
bool pointToPoint() const;
bool running() const;
bool up() const;
protected:
~NetworkInterfaceImpl();
#if defined(POCO_OS_FAMILY_WINDOWS)
void setFlags(DWORD flags, DWORD iftype);
#else
void setFlags(short flags);
#endif
void setUp(bool up);
void setMtu(int mtu);
void setIndex(std::size_t index);
void getPhyParams();
void getIPv4Params();
void getPeerAddress();
private:
std::string _name;
std::string _displayName;
AddressList _addressList;
std::size_t _index;
bool _broadcast;
bool _loopback;
bool _multicast;
bool _pointToPoint;
bool _up;
bool _running;
int _mtu;
#if defined(POCO_OS_FAMILY_WINDOWS)
friend NetworkInterface::Map NetworkInterface::map();
#endif
};
NetworkInterfaceImpl::NetworkInterfaceImpl(int index):
_index(index),
_mtu(-1)
{
_addressList.resize(1);
}
NetworkInterfaceImpl::NetworkInterfaceImpl(const std::string& name, const std::string& displayName, const IPAddress& address, int index):
_name(name),
_displayName(displayName),
_index(index),
_broadcast(false),
_loopback(false),
_multicast(false),
_pointToPoint(false),
_up(false),
_running(false),
_mtu(-1)
{
_addressList.push_back(AddressTuple(address, IPAddress(), IPAddress()));
getPhyParams();
// get remaining IPv4 params from kernel
if (address.family() == IPAddress::IPv4) getIPv4Params();
if (_pointToPoint) getPeerAddress();
}
NetworkInterfaceImpl::NetworkInterfaceImpl(const std::string& name, const std::string& displayName, const IPAddress& address, const IPAddress& subnetMask, const IPAddress& broadcastAddress, int index):
_name(name),
_displayName(displayName),
_index(index),
_broadcast(false),
_loopback(false),
_multicast(false),
_pointToPoint(false),
_up(false),
_running(false),
_mtu(-1)
{
_addressList.push_back(AddressTuple(address, subnetMask, broadcastAddress));
getPhyParams();
if (_pointToPoint) getPeerAddress();
}
void NetworkInterfaceImpl::getPhyParams()
{
#if !defined(POCO_OS_FAMILY_WINDOWS) && !defined(POCO_VXWORKS)
const IPAddress::Family family = _addressList.family();
struct ifreq ifr;
std::strncpy(ifr.ifr_name, _name.c_str(), IFNAMSIZ);
DatagramSocket ds(family);
ds.impl()->ioctl(SIOCGIFFLAGS, &ifr);
setFlags(ifr.ifr_flags);
ds.impl()->ioctl(SIOCGIFMTU, &ifr);
setMtu(ifr.ifr_mtu);
#if POCO_OS == POCO_OS_MAC_OS_X
setIfIndex(if_nametoindex(ifr.ifr_name));
#else
ds.impl()->ioctl(SIOCGIFINDEX, &ifr);
setIfIndex(ifr.ifr_ifindex);
#endif
#endif
}
void NetworkInterfaceImpl::getIPv4Params()
{
#if !defined(POCO_OS_FAMILY_WINDOWS) && !defined(POCO_VXWORKS)
struct ifreq ifr;
std::strncpy(ifr.ifr_name, _name.c_str(), IFNAMSIZ);
DatagramSocket ds(IPAddress::IPv4);
if (!_loopback) {
ds.impl()->ioctl(SIOCGIFNETMASK, &ifr);
if (ifr.ifr_addr.sa_family == AF_INET)
_subnetMask = IPAddress(ifr.ifr_addr);
}
if (!_loopback && !_pointToPoint)
{
try
{
// Not every interface (e.g. loopback) has a broadcast address
ds.impl()->ioctl(SIOCGIFBRDADDR, &ifr);
if (ifr.ifr_addr.sa_family == AF_INET)
_broadcastAddress = IPAddress(ifr.ifr_addr);
}
catch (...)
{
}
}
#endif
}
void NetworkInterfaceImpl::getPeerAddress()
{
AddressList::iterator it = _addressList.begin();
AddressList::iterator end = _addressList.end();
for (; it != end; ++it)
{
IPAddress::Family family = it->get<NetworkInterface::IP_ADDRESS>().family();
DatagramSocket ds(family);
#if !defined(POCO_OS_FAMILY_WINDOWS) && !defined(POCO_VXWORKS)
struct ifreq ifr;
std::strncpy(ifr.ifr_name, _name.c_str(), IFNAMSIZ);
ds.impl()->ioctl(SIOCGIFDSTADDR, &ifr);
// for PPP-type connections, broadcastAddress member holds the peer address
if (ifr.ifr_dstaddr.sa_family == AF_INET)
it->set<NetworkInterface::BROADCAST_ADDRESS>(IPAddress(ifr.ifr_dstaddr));
else
it->set<NetworkInterface::BROADCAST_ADDRESS>(IPAddress(&reinterpret_cast<const struct sockaddr_in6*>(&ifr.ifr_dstaddr)->sin6_addr, sizeof(struct in6_addr), _index));
#else
//TODO
#endif
}
}
NetworkInterfaceImpl::~NetworkInterfaceImpl()
{
}
bool NetworkInterfaceImpl::supportsIPv4() const
{
AddressList::const_iterator it = _addressList.begin();
AddressList::const_iterator end = _addressList.end();
for (; it != end; ++it)
{
if (IPAddress::IPv4 == it->get<NetworkInterface::IP_ADDRESS>().family())
return true;
}
return false;
}
bool NetworkInterfaceImpl::supportsIPv6() const
{
AddressList::const_iterator it = _addressList.begin();
AddressList::const_iterator end = _addressList.end();
for (; it != end; ++it)
{
if (IPAddress::IPv6 == it->get<NetworkInterface::IP_ADDRESS>().family())
return true;
}
return false;
}
inline int NetworkInterfaceImpl::index() const
{
return _index;
}
inline const std::string& NetworkInterfaceImpl::name() const
{
return _name;
}
inline const std::string& NetworkInterfaceImpl::displayName() const
{
return _displayName;
}
void NetworkInterfaceImpl::addAddress(const AddressTuple& address)
{
_addressList.push_back(address);
}
bool NetworkInterfaceImpl::hasAddress(const IPAddress& address) const
{
NetworkInterface::ConstAddressIterator it = _addressList.begin();
NetworkInterface::ConstAddressIterator end = _addressList.end();
for (; it != end; ++it)
{
if (it->get<NetworkInterface::IP_ADDRESS>() == address)
return true;
}
return false;
}
inline const IPAddress& NetworkInterfaceImpl::address(std::size_t index) const
{
if (index < _addressList.size()) return _addressList[index].get<NetworkInterface::IP_ADDRESS>();
else throw NotFoundException(Poco::format("No address with index %z.", index));
}
inline const NetworkInterface::AddressList& NetworkInterfaceImpl::addressList() const
{
return _addressList;
}
inline const IPAddress& NetworkInterfaceImpl::subnetMask(std::size_t index) const
{
if (index < _addressList.size())
return _addressList[index].get<NetworkInterface::SUBNET_MASK>();
throw NotFoundException(Poco::format("No subnet mask with index %z.", index));
}
inline const IPAddress& NetworkInterfaceImpl::broadcastAddress(std::size_t index) const
{
if (index < _addressList.size())
return _addressList[index].get<NetworkInterface::BROADCAST_ADDRESS>();
throw NotFoundException(Poco::format("No subnet mask with index %z.", index));
}
inline const IPAddress& NetworkInterfaceImpl::destAddress(std::size_t index) const
{
if (!pointToPoint())
throw InvalidAccessException("Only PPP addresses have destination address.");
else if (index < _addressList.size())
return _addressList[index].get<NetworkInterface::BROADCAST_ADDRESS>();
throw NotFoundException(Poco::format("No address with index %z.", index));
}
inline int NetworkInterfaceImpl::mtu() const
{
return _mtu;
}
inline bool NetworkInterfaceImpl::broadcast() const
{
return _broadcast;
}
inline bool NetworkInterfaceImpl::loopback() const
{
return _loopback;
}
inline bool NetworkInterfaceImpl::multicast() const
{
return _multicast;
}
inline bool NetworkInterfaceImpl::pointToPoint() const
{
return _pointToPoint;
}
inline bool NetworkInterfaceImpl::running() const
{
return _running;
}
inline bool NetworkInterfaceImpl::up() const
{
return _up;
}
#if defined(POCO_OS_FAMILY_WINDOWS)
void NetworkInterfaceImpl::setFlags(DWORD flags, DWORD iftype)
{
_running = _up = true;
switch (iftype) {
case IF_TYPE_ETHERNET_CSMACD:
case IF_TYPE_ISO88025_TOKENRING:
case IF_TYPE_IEEE80211:
_multicast = _broadcast = true;
break;
case IF_TYPE_SOFTWARE_LOOPBACK:
_loopback = true;
break;
case IF_TYPE_PPP:
case IF_TYPE_ATM:
case IF_TYPE_TUNNEL:
case IF_TYPE_IEEE1394:
_pointToPoint = true;
break;
}
if (!(flags & IP_ADAPTER_NO_MULTICAST))
_multicast = true;
}
#else
void NetworkInterfaceImpl::setFlags(short flags)
{
#ifdef POCO_OS_FAMILY_UNIX
_broadcast = ((flags & IFF_BROADCAST) != 0);
_loopback = ((flags & IFF_LOOPBACK) != 0);
_multicast = ((flags & IFF_MULTICAST) != 0);
_pointToPoint = ((flags & IFF_POINTOPOINT) != 0);
_running = ((flags & IFF_RUNNING) != 0);
_up = ((flags & IFF_UP) != 0);
#endif
}
#endif
inline void NetworkInterfaceImpl::setUp(bool up)
{
_up = up;
}
inline void NetworkInterfaceImpl::setMtu(int mtu)
{
_mtu = mtu;
}
inline void NetworkInterfaceImpl::setIndex(unsigned index)
{
_index = index;
}
inline void NetworkInterfaceImpl::setName(const std::string& name)
{
_name = name;
}
inline void NetworkInterfaceImpl::setDisplayName(const std::string& name)
{
_displayName = name;
}
inline void NetworkInterfaceImpl::addAddress(const IPAddress& addr)
{
_addressList.push_back(addr);
}
//
// NetworkInterface
//
FastMutex NetworkInterface::_mutex;
NetworkInterface::NetworkInterface(std::size_t index):
_pImpl(new NetworkInterfaceImpl(index))
{
}
NetworkInterface::NetworkInterface(const NetworkInterface& interfc):
_pImpl(interfc._pImpl)
{
_pImpl->duplicate();
}
NetworkInterface::NetworkInterface(const std::string& name, const std::string& displayName, const IPAddress& address, int index):
_pImpl(new NetworkInterfaceImpl(name, displayName, address, index))
{
}
NetworkInterface::NetworkInterface(const std::string& name, const std::string& displayName, const IPAddress& address, const IPAddress& subnetMask, const IPAddress& broadcastAddress, int index):
_pImpl(new NetworkInterfaceImpl(name, displayName, address, subnetMask, broadcastAddress, index))
{
}
NetworkInterface::NetworkInterface(const std::string& name, const IPAddress& address, int index):
_pImpl(new NetworkInterfaceImpl(name, name, address, index))
{
}
NetworkInterface::NetworkInterface(const std::string& name, const IPAddress& address, const IPAddress& subnetMask, const IPAddress& broadcastAddress, int index):
_pImpl(new NetworkInterfaceImpl(name, name, address, subnetMask, broadcastAddress, index))
{
}
NetworkInterface::~NetworkInterface()
{
_pImpl->release();
}
NetworkInterface& NetworkInterface::operator = (const NetworkInterface& interfc)
{
NetworkInterface tmp(interfc);
swap(tmp);
return *this;
}
void NetworkInterface::swap(NetworkInterface& other)
{
using std::swap;
swap(_pImpl, other._pImpl);
}
std::size_t NetworkInterface::index() const
{
return _pImpl->index();
}
const std::string& NetworkInterface::name() const
{
return _pImpl->name();
}
const std::string& NetworkInterface::displayName() const
{
return _pImpl->displayName();
}
void NetworkInterface::addAddress(const IPAddress& address)
{
_pImpl->addAddress(AddressTuple(address, IPAddress(), IPAddress()));
}
void NetworkInterface::addAddress(const IPAddress& address, const IPAddress& subnetMask, const IPAddress& broadcastAddress)
{
_pImpl->addAddress(AddressTuple(address, subnetMask, broadcastAddress));
}
const IPAddress& NetworkInterface::address(std::size_t index) const
{
return _pImpl->address(index);
}
const NetworkInterface::AddressList& NetworkInterface::addressList() const
{
return _pImpl->addressList();
}
const IPAddress& NetworkInterface::subnetMask(std::size_t index) const
{
return _pImpl->subnetMask(index);
}
const IPAddress& NetworkInterface::broadcastAddress(std::size_t index) const
{
return _pImpl->broadcastAddress(index);
}
const IPAddress& NetworkInterface::destAddress(std::size_t index) const
{
return _pImpl->destAddress(index);
}
int NetworkInterface::mtu() const
{
return _pImpl->mtu();
}
bool NetworkInterface::supportsIPv4() const
{
return _pImpl->supportsIPv4();
}
bool NetworkInterface::supportsIPv6() const
{
return _pImpl->supportsIPv6();
}
bool NetworkInterface::supportsBroadcast() const
{
return _pImpl->broadcast();
}
bool NetworkInterface::supportsMulticast() const
{
return _pImpl->multicast();
}
bool NetworkInterface::isLoopback() const
{
return _pImpl->loopback();
}
bool NetworkInterface::isPointToPoint() const
{
return _pImpl->pointToPoint();
}
bool NetworkInterface::isRunning() const
{
return _pImpl->running();
}
bool NetworkInterface::isUp() const
{
return _pImpl->up();
}
NetworkInterface NetworkInterface::forName(const std::string& name, bool requireIPv6)
{
NetworkInterfaceList ifs = list();
for (NetworkInterfaceList::const_iterator it = ifs.begin(); it != ifs.end(); ++it)
{
if (it->name() == name && ((requireIPv6 && it->supportsIPv6()) || !requireIPv6))
return *it;
}
throw InterfaceNotFoundException(name);
}
NetworkInterface NetworkInterface::forName(const std::string& name, IPVersion ipVersion)
{
NetworkInterfaceList ifs = list();
for (NetworkInterfaceList::const_iterator it = ifs.begin(); it != ifs.end(); ++it)
{
if (it->name() == name)
{
if (ipVersion == IPv4_ONLY && it->supportsIPv4())
return *it;
else if (ipVersion == IPv6_ONLY && it->supportsIPv6())
return *it;
else if (ipVersion == IPv4_OR_IPv6)
return *it;
}
}
throw InterfaceNotFoundException(name);
}
NetworkInterface NetworkInterface::forAddress(const IPAddress& addr)
{
NetworkInterfaceList ifs = list();
for (NetworkInterfaceList::const_iterator it = ifs.begin(); it != ifs.end(); ++it)
{
if (it->address() == addr)
return *it;
}
throw InterfaceNotFoundException(addr.toString());
}
NetworkInterface NetworkInterface::forIndex(int i)
{
if (i != 0)
{
NetworkInterfaceList ifs = list();
for (NetworkInterfaceList::const_iterator it = ifs.begin(); it != ifs.end(); ++it)
{
if (it->index() == i)
return *it;
}
throw InterfaceNotFoundException("#" + NumberFormatter::format(i));
}
else return NetworkInterface();
}
NetworkInterface::List NetworkInterface::list()
{
List list;
Map m = map();
for (NetworkInterface::Map::const_iterator it = m.begin(); it != m.end(); ++it)
{
int index = it->second.index();
std::string name = it->second.name();
std::string displayName = it->second.displayName();
typedef NetworkInterface::AddressList List;
const List& ipList = it->second.addressList();
List::const_iterator ipIt = ipList.begin();
List::const_iterator ipEnd = ipList.end();
for (int counter = 0; ipIt != ipEnd; ++ipIt, ++counter)
{
IPAddress addr = ipIt->get<NetworkInterface::IP_ADDRESS>();
IPAddress mask = ipIt->get<NetworkInterface::SUBNET_MASK>();
NetworkInterface ni;
if (mask.isWildcard())
ni = NetworkInterface(name, displayName, addr, index);
else
{
IPAddress broadcast = ipIt->get<NetworkInterface::BROADCAST_ADDRESS>();
ni = NetworkInterface(name, displayName, addr, mask, broadcast, index);
}
list.push_back(ni);
}
}
return list;
}
} } // namespace Poco::Net
//
// platform-specific code below
//
#if defined(POCO_OS_FAMILY_WINDOWS)
//
// Windows
//
#include "Poco/Buffer.h"
#include <iterator>
namespace Poco {
namespace Net {
NetworkInterface::Map NetworkInterface::map()
{
FastMutex::ScopedLock lock(_mutex);
Map result;
ULONG outBufLen = 16384;
Poco::Buffer<UCHAR> memory(outBufLen);
ULONG flags = (GAA_FLAG_SKIP_ANYCAST | GAA_FLAG_SKIP_MULTICAST | GAA_FLAG_SKIP_DNS_SERVER | GAA_FLAG_INCLUDE_PREFIX);
#if defined(POCO_HAVE_IPv6)
const unsigned family = AF_UNSPEC; //IPv4 and IPv6
#else
const unsigned family = AF_INET; //IPv4 only
#endif
DWORD dwRetVal = 0;
ULONG iterations = 0;
PIP_ADAPTER_ADDRESSES pAddresses = reinterpret_cast<IP_ADAPTER_ADDRESSES*>(memory.begin());
do
{
if ((dwRetVal = GetAdaptersAddresses(family, flags, NULL, pAddresses, &outBufLen)) == ERROR_BUFFER_OVERFLOW)
memory.resize(outBufLen);
else break;
} while ((dwRetVal == ERROR_BUFFER_OVERFLOW) && (++iterations <= 2));
if (dwRetVal == ERROR_NO_DATA) return result;// no network interfaces found
if (dwRetVal == NO_ERROR)
{
for (PIP_ADAPTER_ADDRESSES pAddress = pAddresses; pAddress; pAddress = pAddress->Next)
{
IPAddress address;
IPAddress subnetMask;
IPAddress broadcastAddress;
IPAddress destAddress;
unsigned ifIndex = ~0;
#if defined(POCO_HAVE_IPv6)
if (pAddress->Flags & IP_ADAPTER_IPV6_ENABLED) ifIndex = pAddress->Ipv6IfIndex;
else
#endif
if (pAddress->Flags & IP_ADAPTER_IPV4_ENABLED) ifIndex = pAddress->IfIndex;
PIP_ADAPTER_PREFIX pPrefix = pAddress->FirstPrefix;
for (PIP_ADAPTER_UNICAST_ADDRESS pUniAddr = pAddress->FirstUnicastAddress;
pUniAddr;
pUniAddr = pUniAddr->Next, pPrefix = pPrefix ? pPrefix->Next : 0)
{
std::string name(pAddress->AdapterName);
std::string displayName;
#ifdef POCO_WIN32_UTF8
Poco::UnicodeConverter::toUTF8(pAddress->FriendlyName, displayName);
#else
char displayNameBuffer[1024];
int rc = WideCharToMultiByte(CP_ACP, WC_DEFAULTCHAR, pAddress->FriendlyName, -1, displayNameBuffer, sizeof(displayNameBuffer), NULL, NULL);
if (rc) displayName = displayNameBuffer;
#endif
address = IPAddress(pUniAddr->Address);
ADDRESS_FAMILY family = pUniAddr->Address.lpSockaddr->sa_family;
Map::iterator ifIt = result.find(ifIndex);
switch (family)
{
case AF_INET:
{
bool hasBroadcast = (pAddress->IfType == IF_TYPE_ETHERNET_CSMACD);
subnetMask = pPrefix ? IPAddress(pPrefix->Length, IPAddress::IPv4) : IPAddress();
broadcastAddress = address | ~subnetMask;
if (ifIt == result.end())
{
if (hasBroadcast)
ifIt = result.insert(Map::value_type(ifIndex, NetworkInterface(name, displayName, address, subnetMask, broadcastAddress, ifIndex))).first;
else
ifIt = result.insert(Map::value_type(ifIndex, NetworkInterface(name, displayName, address, ifIndex))).first;
}
else
{
if (hasBroadcast)
ifIt->second.addAddress(address, subnetMask, broadcastAddress);
else
ifIt->second.addAddress(address);
}
} break;
#if defined(POCO_HAVE_IPv6)
case AF_INET6:
{
if (ifIt == result.end()) ifIt = result.insert(Map::value_type(ifIndex, NetworkInterface(name, displayName, address, ifIndex))).first;
else
ifIt->second.addAddress(address);
} break;
#endif
} // switch family
ifIt->second.impl().setFlags(pAddress->Flags, pAddress->IfType);
ifIt->second.impl().setMtu(pAddress->Mtu);
ifIt->second.impl().setUp(pAddress->OperStatus == IfOperStatusUp);
} // for addresses
} // for adapters
} // if no error
else // error occurred
{
std::string errMsg;
DWORD dwFlg = FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS;
#if defined(POCO_WIN32_UTF8) && !defined(POCO_NO_WSTRING)
LPWSTR lpMsgBuf = 0;
if (FormatMessageW(dwFlg, 0, dwRetVal, 0, (LPWSTR) & lpMsgBuf, 0, NULL))
{
UnicodeConverter::toUTF8(lpMsgBuf, errMsg);
LocalFree(lpMsgBuf);
}
#else
LPTSTR lpMsgBuf = 0;
if (FormatMessageA(dwFlg, 0, dwRetVal, 0, (LPTSTR) & lpMsgBuf, 0, NULL))
{
errMsg = lpMsgBuf;
LocalFree(lpMsgBuf);
}
#endif
throw SystemException(format("An error occurred whiel trying to obtain list of network interfaces: [%s]", errMsg));
}
return result;
}
} } // namespace Poco::Net
#elif defined(POCO_VXWORKS)
//
// VxWorks
//
namespace Poco {
namespace Net {
NetworkInterface::NetworkInterfaceList NetworkInterface::list()
{
FastMutex::ScopedLock lock(_mutex);
NetworkInterfaceList result;
int ifIndex = 1;
char ifName[32];
char ifAddr[INET_ADDR_LEN];
for (;;)
{
if (ifIndexToIfName(ifIndex, ifName) == OK)
{
std::string name(ifName);
IPAddress addr;
IPAddress mask;
IPAddress bcst;
if (ifAddrGet(ifName, ifAddr) == OK)
{
addr = IPAddress(std::string(ifAddr));
}
int ifMask;
if (ifMaskGet(ifName, &ifMask) == OK)
{
mask = IPAddress(&ifMask, sizeof(ifMask));
}
if (ifBroadcastGet(ifName, ifAddr) == OK)
{
bcst = IPAddress(std::string(ifAddr));
}
result.push_back(NetworkInterface(name, name, addr, mask, bcst));
ifIndex++;
}
else break;
}
return result;
}
} } // namespace Poco::Net
#elif defined(POCO_OS_FAMILY_BSD) || POCO_OS == POCO_OS_QNX
//
// BSD variants
//
#include <sys/types.h>
#include <sys/socket.h>
#include <ifaddrs.h>
#include <net/if_dl.h>
namespace Poco {
namespace Net {
NetworkInterface::NetworkInterfaceList NetworkInterface::list()
{
FastMutex::ScopedLock lock(_mutex);
NetworkInterfaceList result;
struct ifaddrs* ifaphead;
int rc = getifaddrs(&ifaphead);
if (rc) throw NetException("cannot get network adapter list");
for (struct ifaddrs* ifap = ifaphead; ifap; ifap = ifap->ifa_next)
{
if (ifap->ifa_addr)
{
if (ifap->ifa_addr->sa_family == AF_INET)
{
std::string name(ifap->ifa_name);
IPAddress addr(*(ifap->ifa_addr));
IPAddress subnetMask, broadcastAddr;
if (ifap->ifa_netmask)
subnetMask = IPAddress(*(ifap->ifa_netmask));
if ((ifap->ifa_flags & IFF_BROADCAST)
&& ifap->ifa_broadaddr)
broadcastAddr = IPAddress(*(ifap->ifa_broadaddr));
result.push_back(NetworkInterface(name, name, addr, subnetMask, broadcastAddr));