| // |
| // Copyright 2017 The Android Open Source Project |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| // |
| |
| #include "shill/net/netlink_fd.h" |
| |
| #include <linux/netlink.h> |
| #include <sys/socket.h> |
| |
| #include <base/logging.h> |
| |
| #include "shill/net/sockets.h" |
| |
| namespace shill { |
| |
| int OpenNetlinkSocketFD(Sockets* sockets, |
| int netlink_family, |
| int netlink_groups_mask) { |
| int sockfd = sockets->Socket(PF_NETLINK, SOCK_DGRAM, netlink_family); |
| if (sockfd < 0) { |
| LOG(ERROR) << "Failed to open netlink socket"; |
| return Sockets::kInvalidFileDescriptor; |
| } |
| |
| if (sockets->SetReceiveBuffer(sockfd, kNetlinkReceiveBufferSize)) |
| LOG(ERROR) << "Failed to increase receive buffer size"; |
| |
| struct sockaddr_nl addr; |
| memset(&addr, 0, sizeof(addr)); |
| addr.nl_family = AF_NETLINK; |
| addr.nl_groups = netlink_groups_mask; |
| |
| if (sockets->Bind(sockfd, |
| reinterpret_cast<struct sockaddr*>(&addr), |
| sizeof(addr)) < 0) { |
| sockets->Close(sockfd); |
| LOG(ERROR) << "Netlink socket bind failed"; |
| return Sockets::kInvalidFileDescriptor; |
| } |
| |
| return sockfd; |
| } |
| |
| } // namespace shill |