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53 lines
1.6 KiB
53 lines
1.6 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 <OffloadControlTestUtils.h>
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#include <android-base/unique_fd.h>
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using android::base::unique_fd;
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inline const sockaddr* asSockaddr(const sockaddr_nl* nladdr) {
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return reinterpret_cast<const sockaddr*>(nladdr);
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}
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int conntrackSocket(unsigned groups) {
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unique_fd s(socket(AF_NETLINK, SOCK_DGRAM, NETLINK_NETFILTER));
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if (s.get() < 0) {
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return -errno;
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}
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const struct sockaddr_nl bind_addr = {
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.nl_family = AF_NETLINK,
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.nl_pad = 0,
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.nl_pid = 0,
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.nl_groups = groups,
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};
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if (::bind(s.get(), asSockaddr(&bind_addr), sizeof(bind_addr)) < 0) {
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return -errno;
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}
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const struct sockaddr_nl kernel_addr = {
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.nl_family = AF_NETLINK,
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.nl_pad = 0,
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.nl_pid = 0,
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.nl_groups = groups,
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};
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if (connect(s.get(), asSockaddr(&kernel_addr), sizeof(kernel_addr)) != 0) {
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return -errno;
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}
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return s.release();
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} |