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1 /**
2  * Copyright (c) 2016, 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 #ifndef _NETD_NATIVE_SERVICE_H_
18 #define _NETD_NATIVE_SERVICE_H_
19 
20 #include <vector>
21 
22 #include <binder/BinderService.h>
23 #include <netdutils/Log.h>
24 
25 #include "android/net/BnNetd.h"
26 
27 namespace android {
28 namespace net {
29 
30 class NetdNativeService : public BinderService<NetdNativeService>, public BnNetd {
31   public:
32     NetdNativeService();
33     static status_t start();
getServiceName()34     static char const* getServiceName() { return "netd"; }
35     virtual status_t dump(int fd, const Vector<String16> &args) override;
36 
37     binder::Status isAlive(bool *alive) override;
38 
39     // Firewall commands.
40     binder::Status firewallReplaceUidChain(const std::string& chainName, bool isAllowlist,
41                                            const std::vector<int32_t>& uids, bool* ret) override;
42     binder::Status firewallSetFirewallType(int32_t firewallType) override;
43     binder::Status firewallSetInterfaceRule(const std::string& ifName,
44                                             int32_t firewallRule) override;
45     binder::Status firewallSetUidRule(int32_t childChain, int32_t uid,
46                                       int32_t firewallRule) override;
47     binder::Status firewallEnableChildChain(int32_t childChain, bool enable) override;
48     binder::Status firewallAddUidInterfaceRules(const std::string& ifName,
49                                                 const std::vector<int32_t>& uids) override;
50     binder::Status firewallRemoveUidInterfaceRules(const std::vector<int32_t>& uids) override;
51 
52     // Bandwidth control commands.
53     binder::Status bandwidthEnableDataSaver(bool enable, bool *ret) override;
54     binder::Status bandwidthSetInterfaceQuota(const std::string& ifName, int64_t bytes) override;
55     binder::Status bandwidthRemoveInterfaceQuota(const std::string& ifName) override;
56     binder::Status bandwidthSetInterfaceAlert(const std::string& ifName, int64_t bytes) override;
57     binder::Status bandwidthRemoveInterfaceAlert(const std::string& ifName) override;
58     binder::Status bandwidthSetGlobalAlert(int64_t bytes) override;
59     binder::Status bandwidthAddNaughtyApp(int32_t uid) override;
60     binder::Status bandwidthRemoveNaughtyApp(int32_t uid) override;
61     binder::Status bandwidthAddNiceApp(int32_t uid) override;
62     binder::Status bandwidthRemoveNiceApp(int32_t uid) override;
63 
64     // Network and routing commands.
65     binder::Status networkCreatePhysical(int32_t netId, int32_t permission) override;
66     binder::Status networkCreateVpn(int32_t netId, bool secure) override;
67     binder::Status networkCreate(const NativeNetworkConfig& config) override;
68     binder::Status networkDestroy(int32_t netId) override;
69 
70     binder::Status networkAddInterface(int32_t netId, const std::string& iface) override;
71     binder::Status networkRemoveInterface(int32_t netId, const std::string& iface) override;
72 
73     binder::Status networkAddUidRanges(int32_t netId,
74                                        const std::vector<UidRangeParcel>& uids) override;
75     binder::Status networkRemoveUidRanges(int32_t netId,
76                                           const std::vector<UidRangeParcel>& uids) override;
77     binder::Status networkAddUidRangesParcel(
78             const netd::aidl::NativeUidRangeConfig& uidRangesConfig) override;
79     binder::Status networkRemoveUidRangesParcel(
80             const netd::aidl::NativeUidRangeConfig& uidRangesConfig) override;
81     binder::Status networkRejectNonSecureVpn(bool enable,
82                                              const std::vector<UidRangeParcel>& uids) override;
83     binder::Status networkAddRouteParcel(int32_t netId, const RouteInfoParcel& route) override;
84     binder::Status networkUpdateRouteParcel(int32_t netId, const RouteInfoParcel& route) override;
85     binder::Status networkRemoveRouteParcel(int32_t netId, const RouteInfoParcel& route) override;
86     binder::Status networkAddRoute(int32_t netId, const std::string& ifName,
87                                    const std::string& destination,
88                                    const std::string& nextHop) override;
89     binder::Status networkRemoveRoute(int32_t netId, const std::string& ifName,
90                                       const std::string& destination,
91                                       const std::string& nextHop) override;
92     binder::Status networkAddLegacyRoute(int32_t netId, const std::string& ifName,
93                                          const std::string& destination, const std::string& nextHop,
94                                          int32_t uid) override;
95     binder::Status networkRemoveLegacyRoute(int32_t netId, const std::string& ifName,
96                                             const std::string& destination,
97                                             const std::string& nextHop, int32_t uid) override;
98     binder::Status networkSetDefault(int32_t netId) override;
99     binder::Status networkClearDefault() override;
100     binder::Status networkSetPermissionForNetwork(int32_t netId, int32_t permission) override;
101     binder::Status networkSetPermissionForUser(int32_t permission,
102                                                const std::vector<int32_t>& uids) override;
103     binder::Status networkClearPermissionForUser(const std::vector<int32_t>& uids) override;
104     binder::Status networkSetProtectAllow(int32_t uid) override;
105     binder::Status networkSetProtectDeny(int32_t uid) override;
106     // For test (internal use only).
107     binder::Status networkGetDefault(int32_t* netId) override;
108     binder::Status networkCanProtect(int32_t uid, bool* ret) override;
109 
110     binder::Status trafficSetNetPermForUids(int32_t permission,
111                                             const std::vector<int32_t>& uids) override;
112 
113     // SOCK_DIAG commands.
114     binder::Status socketDestroy(const std::vector<UidRangeParcel>& uids,
115                                  const std::vector<int32_t>& skipUids) override;
116 
117     binder::Status setIPv6AddrGenMode(const std::string& ifName, int32_t mode) override;
118 
119     // NFLOG-related commands
120     binder::Status wakeupAddInterface(const std::string& ifName, const std::string& prefix,
121                                       int32_t mark, int32_t mask) override;
122 
123     binder::Status wakeupDelInterface(const std::string& ifName, const std::string& prefix,
124                                       int32_t mark, int32_t mask) override;
125 
126     // Tethering-related commands.
127     binder::Status tetherApplyDnsInterfaces(bool *ret) override;
128     binder::Status tetherGetStats(
129             std::vector<android::net::TetherStatsParcel>* tetherStatsVec) override;
130     binder::Status tetherOffloadGetStats(
131             std::vector<android::net::TetherStatsParcel>* tetherStatsVec) override;
132     binder::Status tetherStart(const std::vector<std::string>& dhcpRanges) override;
133     binder::Status tetherStartWithConfiguration(const TetherConfigParcel& config) override;
134     binder::Status tetherStop() override;
135     binder::Status tetherIsEnabled(bool* enabled) override;
136     binder::Status tetherInterfaceAdd(const std::string& ifName) override;
137     binder::Status tetherInterfaceRemove(const std::string& ifName) override;
138     binder::Status tetherInterfaceList(std::vector<std::string>* ifList) override;
139     binder::Status tetherDnsSet(int32_t netId, const std::vector<std::string>& dnsAddrs) override;
140     binder::Status tetherDnsList(std::vector<std::string>* dnsList) override;
141     binder::Status tetherAddForward(const std::string& intIface,
142                                     const std::string& extIface) override;
143     binder::Status tetherRemoveForward(const std::string& intIface,
144                                        const std::string& extIface) override;
145     binder::Status tetherOffloadRuleAdd(const android::net::TetherOffloadRuleParcel& rule) override;
146     binder::Status tetherOffloadRuleRemove(
147             const android::net::TetherOffloadRuleParcel& rule) override;
148     binder::Status tetherOffloadSetInterfaceQuota(int ifIndex, int64_t quotaBytes) override;
149     binder::Status tetherOffloadGetAndClearStats(
150             int ifIndex, android::net::TetherStatsParcel* tetherStats) override;
151 
152     // Interface-related commands.
153     binder::Status interfaceAddAddress(const std::string &ifName,
154             const std::string &addrString, int prefixLength) override;
155     binder::Status interfaceDelAddress(const std::string &ifName,
156             const std::string &addrString, int prefixLength) override;
157     binder::Status interfaceGetList(std::vector<std::string>* interfaceListResult) override;
158     binder::Status interfaceGetCfg(const std::string& ifName,
159                                    InterfaceConfigurationParcel* interfaceGetCfgResult) override;
160     binder::Status interfaceSetCfg(const InterfaceConfigurationParcel& cfg) override;
161     binder::Status interfaceSetIPv6PrivacyExtensions(const std::string& ifName,
162                                                      bool enable) override;
163     binder::Status interfaceClearAddrs(const std::string& ifName) override;
164     binder::Status interfaceSetEnableIPv6(const std::string& ifName, bool enable) override;
165     binder::Status interfaceSetMtu(const std::string& ifName, int32_t mtuValue) override;
166 
167     binder::Status getProcSysNet(int32_t ipversion, int32_t which, const std::string& ifname,
168                                  const std::string& parameter, std::string* value) override;
169     binder::Status setProcSysNet(int32_t ipversion, int32_t which, const std::string& ifname,
170                                  const std::string& parameter, const std::string& value) override;
171 
172     binder::Status ipSecSetEncapSocketOwner(const os::ParcelFileDescriptor& socket, int newUid);
173 
174     binder::Status ipSecAllocateSpi(
175             int32_t transformId,
176             const std::string& localAddress,
177             const std::string& remoteAddress,
178             int32_t inSpi,
179             int32_t* outSpi);
180 
181     binder::Status ipSecAddSecurityAssociation(
182             int32_t transformId, int32_t mode, const std::string& sourceAddress,
183             const std::string& destinationAddress, int32_t underlyingNetId, int32_t spi,
184             int32_t markValue, int32_t markMask, const std::string& authAlgo,
185             const std::vector<uint8_t>& authKey, int32_t authTruncBits,
186             const std::string& cryptAlgo, const std::vector<uint8_t>& cryptKey,
187             int32_t cryptTruncBits, const std::string& aeadAlgo,
188             const std::vector<uint8_t>& aeadKey, int32_t aeadIcvBits, int32_t encapType,
189             int32_t encapLocalPort, int32_t encapRemotePort, int32_t interfaceId);
190 
191     binder::Status ipSecDeleteSecurityAssociation(int32_t transformId,
192                                                   const std::string& sourceAddress,
193                                                   const std::string& destinationAddress,
194                                                   int32_t spi, int32_t markValue, int32_t markMask,
195                                                   int32_t interfaceId);
196 
197     binder::Status ipSecApplyTransportModeTransform(const os::ParcelFileDescriptor& socket,
198                                                     int32_t transformId, int32_t direction,
199                                                     const std::string& sourceAddress,
200                                                     const std::string& destinationAddress,
201                                                     int32_t spi);
202 
203     binder::Status ipSecRemoveTransportModeTransform(const os::ParcelFileDescriptor& socket);
204 
205     binder::Status ipSecAddSecurityPolicy(int32_t transformId, int32_t selAddrFamily,
206                                           int32_t direction, const std::string& tmplSrcAddress,
207                                           const std::string& tmplDstAddress, int32_t spi,
208                                           int32_t markValue, int32_t markMask, int32_t interfaceId);
209 
210     binder::Status ipSecUpdateSecurityPolicy(int32_t transformId, int32_t selAddrFamily,
211                                              int32_t direction, const std::string& tmplSrcAddress,
212                                              const std::string& tmplDstAddress, int32_t spi,
213                                              int32_t markValue, int32_t markMask,
214                                              int32_t interfaceId);
215 
216     binder::Status ipSecDeleteSecurityPolicy(int32_t transformId, int32_t selAddrFamily,
217                                              int32_t direction, int32_t markValue, int32_t markMask,
218                                              int32_t interfaceId);
219 
220     binder::Status trafficSwapActiveStatsMap() override;
221 
222     binder::Status ipSecAddTunnelInterface(const std::string& deviceName,
223                                            const std::string& localAddress,
224                                            const std::string& remoteAddress, int32_t iKey,
225                                            int32_t oKey, int32_t interfaceId);
226 
227     binder::Status ipSecUpdateTunnelInterface(const std::string& deviceName,
228                                               const std::string& localAddress,
229                                               const std::string& remoteAddress, int32_t iKey,
230                                               int32_t oKey, int32_t interfaceId);
231 
232     binder::Status ipSecRemoveTunnelInterface(const std::string& deviceName);
233 
234     // Idletimer-related commands
235     binder::Status idletimerAddInterface(const std::string& ifName, int32_t timeout,
236                                          const std::string& classLabel) override;
237     binder::Status idletimerRemoveInterface(const std::string& ifName, int32_t timeout,
238                                             const std::string& classLabel) override;
239 
240     // Strict-related commands
241     binder::Status strictUidCleartextPenalty(int32_t uid, int32_t policyPenalty) override;
242 
243     // Clatd-related commands
244     binder::Status clatdStart(const std::string& ifName, const std::string& nat64Prefix,
245                               std::string* v6Address) override;
246     binder::Status clatdStop(const std::string& ifName) override;
247 
248     // Ipfw-related commands
249     binder::Status ipfwdEnabled(bool* status) override;
250     binder::Status ipfwdGetRequesterList(std::vector<std::string>* requesterList) override;
251     binder::Status ipfwdEnableForwarding(const std::string& requester) override;
252     binder::Status ipfwdDisableForwarding(const std::string& requester) override;
253     binder::Status ipfwdAddInterfaceForward(const std::string& fromIface,
254                                             const std::string& toIface) override;
255     binder::Status ipfwdRemoveInterfaceForward(const std::string& fromIface,
256                                                const std::string& toIface) override;
257 
258     // tcp_mem-config command
259     binder::Status setTcpRWmemorySize(const std::string& rmemValues,
260                                       const std::string& wmemValues) override;
261 
262     binder::Status registerUnsolicitedEventListener(
263             const android::sp<android::net::INetdUnsolicitedEventListener>& listener) override;
264 
265     binder::Status getOemNetd(android::sp<android::IBinder>* listener) override;
266     binder::Status getFwmarkForNetwork(int32_t netId, MarkMaskParcel* markmask);
267 
268   private:
269     std::vector<uid_t> intsToUids(const std::vector<int32_t>& intUids);
270     Permission convertPermission(int32_t permission);
271     static FirewallRule parseRule(int32_t firewallRule);
272     static ChildChain parseChildChain(int32_t childChain);
273 };
274 
275 }  // namespace net
276 }  // namespace android
277 
278 #endif  // _NETD_NATIVE_SERVICE_H_
279