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63 lines
2.0 KiB
63 lines
2.0 KiB
/*
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* Copyright (C) 2021 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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#define LOG_TAG "Netd"
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#include "UnreachableNetwork.h"
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#include "RouteController.h"
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namespace android {
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namespace net {
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// The unreachable network is used to reject traffic. It is used for system purposes only.
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UnreachableNetwork::UnreachableNetwork(unsigned netId) : Network(netId) {}
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int UnreachableNetwork::addUsers(const UidRanges& uidRanges, uint32_t subPriority) {
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if (!isValidSubPriority(subPriority) || !canAddUidRanges(uidRanges, subPriority)) {
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return -EINVAL;
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}
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int ret = RouteController::addUsersToUnreachableNetwork(mNetId, {{subPriority, uidRanges}});
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if (ret) {
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ALOGE("failed to add users to unreachable network");
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return ret;
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}
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addToUidRangeMap(uidRanges, subPriority);
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return 0;
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}
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int UnreachableNetwork::removeUsers(const UidRanges& uidRanges, uint32_t subPriority) {
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if (!isValidSubPriority(subPriority)) return -EINVAL;
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int ret =
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RouteController::removeUsersFromUnreachableNetwork(mNetId, {{subPriority, uidRanges}});
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if (ret) {
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ALOGE("failed to remove users from unreachable network");
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return ret;
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}
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removeFromUidRangeMap(uidRanges, subPriority);
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return 0;
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}
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bool UnreachableNetwork::isValidSubPriority(uint32_t priority) {
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return priority >= UidRanges::DEFAULT_SUB_PRIORITY &&
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priority <= UidRanges::LOWEST_SUB_PRIORITY;
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}
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} // namespace net
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} // namespace android
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