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// Copyright 2018 The gVisor Authors.
//
// 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.
#ifndef GVISOR_TEST_SYSCALLS_SOCKET_NETLINK_UTIL_H_
#define GVISOR_TEST_SYSCALLS_SOCKET_NETLINK_UTIL_H_
#include <sys/socket.h>
// socket.h has to be included before if_arp.h.
#include <linux/if_arp.h>
#include <linux/netlink.h>
#include "test/util/file_descriptor.h"
#include "test/util/posix_error.h"
namespace gvisor {
namespace testing {
// Returns a bound netlink socket.
PosixErrorOr<FileDescriptor> NetlinkBoundSocket(int protocol);
// Returns the port ID of the passed socket.
PosixErrorOr<uint32> NetlinkPortID(int fd);
// Send the passed request and call fn will all response netlink messages.
PosixError NetlinkRequestResponse(
const FileDescriptor& fd, void* request, size_t len,
const std::function<void(const struct nlmsghdr* hdr)>& fn,
bool expect_nlmsgerr);
} // namespace testing
} // namespace gvisor
#endif // GVISOR_TEST_SYSCALLS_SOCKET_NETLINK_UTIL_H_
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