automotive/can/1.0/default/libnetdevice/ifreqs.cpp

/*
 * Copyright (C) 2020 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 "ifreqs.h"

#include "common.h"

#include <android-base/logging.h>
#include <android-base/unique_fd.h>

namespace android::netdevice::ifreqs {

bool send(unsigned long request, struct ifreq& ifr) {
    base::unique_fd sock(socket(socketparams::current.domain, socketparams::current.type,
                                socketparams::current.protocol));
    if (!sock.ok()) {
        LOG(ERROR) << "Can't create socket";
        return false;
    }

    if (ioctl(sock.get(), request, &ifr) < 0) {
        PLOG(ERROR) << "ioctl(" << std::hex << request << std::dec << ") failed";
        return false;
    }

    return true;
}

struct ifreq fromName(const std::string& ifname) {
    struct ifreq ifr = {};
    strlcpy(ifr.ifr_name, ifname.c_str(), IF_NAMESIZE);
    return ifr;
}

}  // namespace android::netdevice::ifreqs