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73 lines
2.0 KiB
73 lines
2.0 KiB
/*
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* Copyright (C) 2020 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "ifreqs.h"
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#include "common.h"
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#include <android-base/logging.h>
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#include <android-base/unique_fd.h>
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#include <map>
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namespace android::netdevice::ifreqs {
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static constexpr int defaultSocketDomain = AF_INET;
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std::atomic_int socketDomain = defaultSocketDomain;
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struct SocketParams {
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int domain;
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int type;
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int protocol;
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};
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static const std::map<int, SocketParams> socketParams = {
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{AF_INET, {AF_INET, SOCK_DGRAM, 0}},
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{AF_CAN, {AF_CAN, SOCK_RAW, CAN_RAW}},
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};
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static SocketParams getSocketParams(int domain) {
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if (socketParams.count(domain)) return socketParams.find(domain)->second;
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auto params = socketParams.find(defaultSocketDomain)->second;
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params.domain = domain;
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return params;
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}
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bool send(unsigned long request, struct ifreq& ifr) {
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const auto sp = getSocketParams(socketDomain);
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base::unique_fd sock(socket(sp.domain, sp.type, sp.protocol));
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if (!sock.ok()) {
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LOG(ERROR) << "Can't create socket";
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return false;
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}
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if (ioctl(sock.get(), request, &ifr) < 0) {
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PLOG(ERROR) << "ioctl(" << std::hex << request << std::dec << ") failed";
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return false;
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}
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return true;
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}
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struct ifreq fromName(const std::string& ifname) {
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struct ifreq ifr = {};
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strlcpy(ifr.ifr_name, ifname.c_str(), IF_NAMESIZE);
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return ifr;
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}
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} // namespace android::netdevice::ifreqs
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