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Make Utils::resolve_hwaddress work on Windows

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This commit is contained in:
Matias Fontanini
2016-03-22 20:34:06 -07:00
parent 7bc1ab41f7
commit 6aac22fa74
2 changed files with 27 additions and 9 deletions
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29
src/utils.cpp
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@@ -172,16 +172,29 @@ IPv6Address resolve_domain6(const string& to_resolve) {
HWAddress<6> resolve_hwaddr(const NetworkInterface& iface,
IPv4Address ip,
PacketSender& sender) {
IPv4Address my_ip;
NetworkInterface::Info info(iface.addresses());
EthernetII packet = ARP::make_arp_request(ip, info.ip_addr, info.hw_addr);
Internals::smart_ptr<PDU>::type response(sender.send_recv(packet, iface));
if (response.get()) {
const ARP* arp_resp = response->find_pdu<ARP>();
if (arp_resp) {
return arp_resp->sender_hw_addr();
#ifdef _WIN32
// On Windows, use SendARP
IPAddr source;
IPAddr dest;
ULONG hw_address[2];
ULONG address_length = 6;
source = static_cast<uint32_t>(info.ip_addr);
dest = static_cast<uint32_t>(ip);
if (SendARP(dest, source, &hw_address, &address_length) == NO_ERROR && address_length == 6) {
return HWAddress<6>((const uint8_t*)hw_address);
}
}
#else
// On other platforms, just do the ARP resolution ourselves
EthernetII packet = ARP::make_arp_request(ip, info.ip_addr, info.hw_addr);
Internals::smart_ptr<PDU>::type response(sender.send_recv(packet, iface));
if (response.get()) {
const ARP* arp_resp = response->find_pdu<ARP>();
if (arp_resp) {
return arp_resp->sender_hw_addr();
}
}
#endif
throw runtime_error("Could not resolve hardware address");
}