1/*
2 * Copyright (C) 2013 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#include "UidMarkMap.h"
18
19UidMarkMap::UidMarkEntry::UidMarkEntry(int start, int end, int new_mark) :
20                                            uid_start(start),
21                                            uid_end(end),
22                                            mark(new_mark) {
23};
24
25bool UidMarkMap::add(int uid_start, int uid_end, int mark) {
26    android::RWLock::AutoWLock lock(mRWLock);
27    if (uid_start > uid_end) {
28        return false;
29    }
30    android::netd::List<UidMarkEntry*>::iterator it;
31    for (it = mMap.begin(); it != mMap.end(); it++) {
32        UidMarkEntry *entry = *it;
33        if (entry->uid_start <= uid_end && uid_start <= entry->uid_end) {
34            return false;
35        }
36    }
37
38    UidMarkEntry *e = new UidMarkEntry(uid_start, uid_end, mark);
39    mMap.push_back(e);
40    return true;
41};
42
43bool UidMarkMap::remove(int uid_start, int uid_end, int mark) {
44    android::RWLock::AutoWLock lock(mRWLock);
45    android::netd::List<UidMarkEntry*>::iterator it;
46    for (it = mMap.begin(); it != mMap.end(); it++) {
47        UidMarkEntry *entry = *it;
48        if (entry->uid_start == uid_start && entry->uid_end == uid_end && entry->mark == mark) {
49            mMap.erase(it);
50            delete entry;
51            return true;
52        }
53    }
54    return false;
55};
56
57int UidMarkMap::getMark(int uid) {
58    android::RWLock::AutoRLock lock(mRWLock);
59    android::netd::List<UidMarkEntry*>::iterator it;
60    for (it = mMap.begin(); it != mMap.end(); it++) {
61        UidMarkEntry *entry = *it;
62        if (entry->uid_start <= uid && entry->uid_end >= uid) {
63            return entry->mark;
64        }
65    }
66    return -1;
67};
68
69bool UidMarkMap::anyRulesForMark(int mark) {
70    android::RWLock::AutoRLock lock(mRWLock);
71    android::netd::List<UidMarkEntry*>::iterator it;
72    for (it = mMap.begin(); it != mMap.end(); it++) {
73        UidMarkEntry *entry = *it;
74        if (entry->mark == mark) {
75            return true;
76        }
77    }
78    return false;
79}
80