1 /*
2 * Copyright (C) 2022 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 <android/file_descriptor_jni.h>
18 #include <android/multinetwork.h>
19 #include <nativehelper/JNIHelp.h>
20
21 namespace android {
22
tagSocketFd(JNIEnv * env,jclass,jobject fileDescriptor,jint tag,jint uid)23 static jint tagSocketFd(JNIEnv* env, jclass, jobject fileDescriptor, jint tag, jint uid) {
24 int fd = AFileDescriptor_getFd(env, fileDescriptor);
25 if (fd == -1) return -EBADF;
26 return android_tag_socket_with_uid(fd, tag, uid);
27 }
28
untagSocketFd(JNIEnv * env,jclass,jobject fileDescriptor)29 static jint untagSocketFd(JNIEnv* env, jclass, jobject fileDescriptor) {
30 int fd = AFileDescriptor_getFd(env, fileDescriptor);
31 if (fd == -1) return -EBADF;
32 return android_untag_socket(fd);
33 }
34
35 static const JNINativeMethod gMethods[] = {
36 /* name, signature, funcPtr */
37 { "native_tagSocketFd", "(Ljava/io/FileDescriptor;II)I", (void*) tagSocketFd },
38 { "native_untagSocketFd", "(Ljava/io/FileDescriptor;)I", (void*) untagSocketFd },
39 };
40
register_android_net_TrafficStats(JNIEnv * env)41 int register_android_net_TrafficStats(JNIEnv* env) {
42 return jniRegisterNativeMethods(env, "android/net/TrafficStats", gMethods, NELEM(gMethods));
43 }
44
45 }; // namespace android
46
47