blob: dd6318c0dfe9df02d2c5bc476c0c6c4b386a0d80 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
|
/*
* Copyright (C) 2021 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.
*/
#define LOG_TAG "Netd"
#include "UnreachableNetwork.h"
#include "RouteController.h"
namespace android {
namespace net {
// The unreachable network is used to reject traffic. It is used for system purposes only.
UnreachableNetwork::UnreachableNetwork(unsigned netId) : Network(netId) {}
int UnreachableNetwork::addUsers(const UidRanges& uidRanges, int32_t subPriority) {
if (!isValidSubPriority(subPriority) || !canAddUidRanges(uidRanges)) {
return -EINVAL;
}
int ret = RouteController::addUsersToUnreachableNetwork(mNetId, {{subPriority, uidRanges}});
if (ret) {
ALOGE("failed to add users to unreachable network");
return ret;
}
addToUidRangeMap(uidRanges, subPriority);
return 0;
}
int UnreachableNetwork::removeUsers(const UidRanges& uidRanges, int32_t subPriority) {
if (!isValidSubPriority(subPriority)) return -EINVAL;
int ret =
RouteController::removeUsersFromUnreachableNetwork(mNetId, {{subPriority, uidRanges}});
if (ret) {
ALOGE("failed to remove users from unreachable network");
return ret;
}
removeFromUidRangeMap(uidRanges, subPriority);
return 0;
}
bool UnreachableNetwork::isValidSubPriority(int32_t priority) {
return priority >= UidRanges::SUB_PRIORITY_HIGHEST &&
priority <= UidRanges::SUB_PRIORITY_LOWEST;
}
} // namespace net
} // namespace android
|
