1/*
2 * Copyright (C) 2011 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#define LOG_TAG "ResolverController"
18#define DBG 0
19
20#include <cutils/log.h>
21
22#include <net/if.h>
23
24// NOTE: <resolv_iface.h> is a private C library header that provides
25//       declarations for _resolv_set_default_iface() and others.
26#include <resolv_iface.h>
27
28#include "ResolverController.h"
29
30int ResolverController::setDefaultInterface(const char* iface) {
31    if (DBG) {
32        ALOGD("setDefaultInterface iface = %s\n", iface);
33    }
34
35    _resolv_set_default_iface(iface);
36
37    return 0;
38}
39
40int ResolverController::setInterfaceDnsServers(const char* iface, const char* domains,
41        const char** servers, int numservers) {
42    if (DBG) {
43        ALOGD("setInterfaceDnsServers iface = %s\n", iface);
44    }
45    _resolv_set_nameservers_for_iface(iface, servers, numservers, domains);
46
47    return 0;
48}
49
50int ResolverController::setInterfaceAddress(const char* iface, struct in_addr* addr) {
51    if (DBG) {
52        ALOGD("setInterfaceAddress iface = %s\n", iface);
53    }
54
55    _resolv_set_addr_of_iface(iface, addr);
56
57    return 0;
58}
59
60int ResolverController::flushDefaultDnsCache() {
61    if (DBG) {
62        ALOGD("flushDefaultDnsCache\n");
63    }
64
65    _resolv_flush_cache_for_default_iface();
66
67    return 0;
68}
69
70int ResolverController::flushInterfaceDnsCache(const char* iface) {
71    if (DBG) {
72        ALOGD("flushInterfaceDnsCache iface = %s\n", iface);
73    }
74
75    _resolv_flush_cache_for_iface(iface);
76
77    return 0;
78}
79
80int ResolverController::setDnsInterfaceForPid(const char* iface, int pid) {
81    if (DBG) {
82        ALOGD("setDnsIfaceForPid iface = %s, pid = %d\n", iface, pid);
83    }
84
85    _resolv_set_iface_for_pid(iface, pid);
86
87    return 0;
88}
89
90int ResolverController::clearDnsInterfaceForPid(int pid) {
91    if (DBG) {
92        ALOGD("clearDnsIfaceForPid pid = %d\n", pid);
93    }
94
95    _resolv_clear_iface_for_pid(pid);
96
97    return 0;
98}
99
100int ResolverController::setDnsInterfaceForUidRange(const char* iface, int uid_start, int uid_end) {
101    if (DBG) {
102        ALOGD("setDnsIfaceForUidRange iface = %s, range = [%d,%d]\n", iface, uid_start, uid_end);
103    }
104
105    return _resolv_set_iface_for_uid_range(iface, uid_start, uid_end);
106}
107
108int ResolverController::clearDnsInterfaceForUidRange(int uid_start, int uid_end) {
109    if (DBG) {
110        ALOGD("clearDnsIfaceForUidRange range = [%d,%d]\n", uid_start, uid_end);
111    }
112
113    return _resolv_clear_iface_for_uid_range(uid_start, uid_end);
114}
115
116int ResolverController::clearDnsInterfaceMappings()
117{
118    if (DBG) {
119        ALOGD("clearInterfaceMappings\n");
120    }
121    _resolv_clear_iface_uid_range_mapping();
122    _resolv_clear_iface_pid_mapping();
123
124    return 0;
125}
126