1 /*
2 * Copyright (C) 2016 The Android Open Source Project
3 *
4 * This code is free software; you can redistribute it and/or modify it
5 * under the terms of the GNU General Public License version 2 only, as
6 * published by the Free Software Foundation. The Android Open Source
7 * Project designates this particular file as subject to the "Classpath"
8 * exception as provided by The Android Open Source Project in the LICENSE
9 * file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 */
21
22 #include <nativehelper/JNIPlatformHelp.h>
23 #include <nativehelper/ScopedLocalRef.h>
24
25 #include "JniConstants.h"
26
tagSocket(JNIEnv * env,int fd)27 extern "C" int tagSocket(JNIEnv* env, int fd) {
28 if (env->ExceptionOccurred()) {
29 return fd;
30 }
31
32 jobject fileDescriptor = jniCreateFileDescriptor(env, fd);
33 if (fileDescriptor == nullptr) {
34 return fd;
35 }
36
37 jclass socketTaggerClass = JniConstants::GetSocketTaggerClass(env);
38 jmethodID get = env->GetStaticMethodID(socketTaggerClass,
39 "get",
40 "()Ldalvik/system/SocketTagger;");
41 jobject socketTagger = env->CallStaticObjectMethod(socketTaggerClass, get);
42 jmethodID tag = env->GetMethodID(socketTaggerClass, "tag", "(Ljava/io/FileDescriptor;)V");
43
44 env->CallVoidMethod(socketTagger, tag, fileDescriptor);
45 return fd;
46 }
47