blob: c1cfaa67cdaa784aa0943703ff26e1ddf2c212b2 [file] [log] [blame]
/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/**
* Copyright (C) 2014 Named Data Networking Project
* See COPYING for copyright and distribution information.
*/
#include "network-interface.hpp"
#include "core/logger.hpp"
#include <boost/foreach.hpp>
#include <arpa/inet.h> // for inet_ntop()
#include <netinet/in.h> // for struct sockaddr_in{,6}
#include <ifaddrs.h> // for getifaddrs()
#if defined(__linux__)
#include <net/if_arp.h> // for ARPHRD_* constants
#include <netpacket/packet.h> // for struct sockaddr_ll
#elif defined(__APPLE__) || defined(__FreeBSD__)
#include <net/if_dl.h> // for struct sockaddr_dl
#else
#error Platform not supported
#endif
namespace nfd {
NFD_LOG_INIT("NetworkInterfaceInfo")
std::list< shared_ptr<NetworkInterfaceInfo> >
listNetworkInterfaces()
{
typedef std::map< std::string, shared_ptr<NetworkInterfaceInfo> > InterfacesMap;
InterfacesMap ifmap;
ifaddrs* ifa_list;
if (::getifaddrs(&ifa_list) < 0)
throw std::runtime_error("getifaddrs() failed");
for (ifaddrs* ifa = ifa_list; ifa != 0; ifa = ifa->ifa_next)
{
shared_ptr<NetworkInterfaceInfo> netif;
std::string ifname(ifa->ifa_name);
InterfacesMap::iterator i = ifmap.find(ifname);
if (i == ifmap.end())
{
netif = make_shared<NetworkInterfaceInfo>();
netif->name = ifname;
netif->flags = ifa->ifa_flags;
ifmap[ifname] = netif;
}
else
{
netif = i->second;
}
if (!ifa->ifa_addr)
continue;
switch (ifa->ifa_addr->sa_family)
{
case AF_INET: {
const sockaddr_in* sin = reinterpret_cast<sockaddr_in*>(ifa->ifa_addr);
char address[INET_ADDRSTRLEN];
if (::inet_ntop(AF_INET, &sin->sin_addr, address, sizeof(address)))
netif->ipv4Addresses.push_back(boost::asio::ip::address_v4::from_string(address));
else
NFD_LOG_WARN("inet_ntop() failed on " << ifname);
}
break;
case AF_INET6: {
const sockaddr_in6* sin6 = reinterpret_cast<sockaddr_in6*>(ifa->ifa_addr);
char address[INET6_ADDRSTRLEN];
if (::inet_ntop(AF_INET6, &sin6->sin6_addr, address, sizeof(address)))
netif->ipv6Addresses.push_back(boost::asio::ip::address_v6::from_string(address));
else
NFD_LOG_WARN("inet_ntop() failed on " << ifname);
}
break;
#if defined(__linux__)
case AF_PACKET: {
const sockaddr_ll* sll = reinterpret_cast<sockaddr_ll*>(ifa->ifa_addr);
netif->index = sll->sll_ifindex;
if (sll->sll_hatype == ARPHRD_ETHER && sll->sll_halen == ethernet::ADDR_LEN)
netif->etherAddress = ethernet::Address(sll->sll_addr);
else if (sll->sll_hatype != ARPHRD_LOOPBACK)
NFD_LOG_WARN("Unrecognized hardware address on " << ifname);
}
break;
#elif defined(__APPLE__) || defined(__FreeBSD__)
case AF_LINK: {
const sockaddr_dl* sdl = reinterpret_cast<sockaddr_dl*>(ifa->ifa_addr);
netif->index = sdl->sdl_index;
netif->etherAddress = ethernet::Address(reinterpret_cast<uint8_t*>(LLADDR(sdl)));
}
break;
#endif
}
if (netif->isBroadcastCapable() && ifa->ifa_broadaddr != 0)
{
const sockaddr_in* sin = reinterpret_cast<sockaddr_in*>(ifa->ifa_broadaddr);
char address[INET_ADDRSTRLEN];
if (::inet_ntop(AF_INET, &sin->sin_addr, address, sizeof(address)))
netif->broadcastAddress = boost::asio::ip::address_v4::from_string(address);
else
NFD_LOG_WARN("inet_ntop() failed on " << ifname);
}
}
::freeifaddrs(ifa_list);
std::list< shared_ptr<NetworkInterfaceInfo> > list;
BOOST_FOREACH(InterfacesMap::value_type elem, ifmap) {
list.push_back(elem.second);
}
return list;
}
} // namespace nfd