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| 1 // Copyright 2013 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "net/dns/mdns_client.h" | |
| 6 | |
| 7 #include "net/base/net_errors.h" | |
| 8 #include "net/dns/dns_protocol.h" | |
| 9 #include "net/dns/mdns_client_impl.h" | |
| 10 | |
| 11 namespace net { | |
| 12 | |
| 13 namespace { | |
| 14 | |
| 15 const char kMDnsMulticastGroupIPv4[] = "224.0.0.251"; | |
| 16 const char kMDnsMulticastGroupIPv6[] = "FF02::FB"; | |
| 17 | |
| 18 IPEndPoint GetMDnsIPEndPoint(const char* address) { | |
| 19 IPAddressNumber multicast_group_number; | |
| 20 bool success = ParseIPLiteralToNumber(address, | |
| 21 &multicast_group_number); | |
| 22 DCHECK(success); | |
| 23 return IPEndPoint(multicast_group_number, | |
| 24 dns_protocol::kDefaultPortMulticast); | |
| 25 } | |
| 26 | |
| 27 int Bind(const IPEndPoint& multicast_addr, | |
| 28 uint32 interface_index, | |
| 29 DatagramServerSocket* socket) { | |
| 30 IPAddressNumber address_any(multicast_addr.address().size()); | |
| 31 IPEndPoint bind_endpoint(address_any, multicast_addr.port()); | |
| 32 | |
| 33 socket->AllowAddressReuse(); | |
| 34 socket->SetMulticastInterface(interface_index); | |
| 35 | |
| 36 int rv = socket->Listen(bind_endpoint); | |
| 37 if (rv < OK) | |
| 38 return rv; | |
| 39 | |
| 40 return socket->JoinGroup(multicast_addr.address()); | |
| 41 } | |
| 42 | |
| 43 } // namespace | |
| 44 | |
| 45 // static | |
| 46 scoped_ptr<MDnsSocketFactory> MDnsSocketFactory::CreateDefault() { | |
| 47 return scoped_ptr<MDnsSocketFactory>(new MDnsSocketFactoryImpl); | |
| 48 } | |
| 49 | |
| 50 // static | |
| 51 scoped_ptr<MDnsClient> MDnsClient::CreateDefault() { | |
| 52 return scoped_ptr<MDnsClient>(new MDnsClientImpl()); | |
| 53 } | |
| 54 | |
| 55 IPEndPoint GetMDnsIPEndPoint(AddressFamily address_family) { | |
| 56 switch (address_family) { | |
| 57 case ADDRESS_FAMILY_IPV4: | |
| 58 return GetMDnsIPEndPoint(kMDnsMulticastGroupIPv4); | |
| 59 case ADDRESS_FAMILY_IPV6: | |
| 60 return GetMDnsIPEndPoint(kMDnsMulticastGroupIPv6); | |
| 61 default: | |
| 62 NOTREACHED(); | |
| 63 return IPEndPoint(); | |
| 64 } | |
| 65 } | |
| 66 | |
| 67 InterfaceIndexFamilyList GetMDnsInterfacesToBind() { | |
| 68 NetworkInterfaceList network_list; | |
| 69 InterfaceIndexFamilyList interfaces; | |
| 70 if (!GetNetworkList(&network_list, INCLUDE_HOST_SCOPE_VIRTUAL_INTERFACES)) | |
| 71 return interfaces; | |
| 72 for (size_t i = 0; i < network_list.size(); ++i) { | |
| 73 AddressFamily family = GetAddressFamily(network_list[i].address); | |
| 74 if (family == ADDRESS_FAMILY_IPV4 || family == ADDRESS_FAMILY_IPV6) { | |
| 75 interfaces.push_back( | |
| 76 std::make_pair(network_list[i].interface_index, family)); | |
| 77 } | |
| 78 } | |
| 79 std::sort(interfaces.begin(), interfaces.end()); | |
| 80 // Interfaces could have multiple addresses. Filter out duplicate entries. | |
| 81 interfaces.erase(std::unique(interfaces.begin(), interfaces.end()), | |
| 82 interfaces.end()); | |
| 83 return interfaces; | |
| 84 } | |
| 85 | |
| 86 scoped_ptr<DatagramServerSocket> CreateAndBindMDnsSocket( | |
| 87 AddressFamily address_family, | |
| 88 uint32 interface_index) { | |
| 89 scoped_ptr<DatagramServerSocket> socket( | |
| 90 new UDPServerSocket(NULL, NetLog::Source())); | |
| 91 | |
| 92 IPEndPoint multicast_addr = GetMDnsIPEndPoint(address_family); | |
| 93 int rv = Bind(multicast_addr, interface_index, socket.get()); | |
| 94 if (rv != OK) { | |
| 95 socket.reset(); | |
| 96 VLOG(1) << "Bind failed, endpoint=" << multicast_addr.ToStringWithoutPort() | |
| 97 << ", error=" << rv; | |
| 98 } | |
| 99 return socket.Pass(); | |
| 100 } | |
| 101 | |
| 102 } // namespace net | |
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Chromium Code Reviews
Issue 992733002:
Remove //net (except for Android test stuff) and sdch (Closed)
Base URL: git@github.com:domokit/mojo.git@master