1 /*
2 * Copyright (C) 2012 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 "_OverrideLog.h"
18 #include "NfcJniUtil.h"
19 #include "NfcAdaptation.h"
20 #include "PeerToPeer.h"
21 #include "JavaClassConstants.h"
22
23 #include <JNIHelp.h>
24
25 extern "C"
26 {
27 #include "nfa_api.h"
28 #include "nfa_p2p_api.h"
29 }
30
31
32 namespace android
33 {
34
35
36 /*******************************************************************************
37 **
38 ** Function: nativeLlcpServiceSocket_doAccept
39 **
40 ** Description: Accept a connection request from a peer.
41 ** e: JVM environment.
42 ** o: Java object.
43 ** miu: Maximum information unit.
44 ** rw: Receive window.
45 ** linearBufferLength: Not used.
46 **
47 ** Returns: LlcpSocket Java object.
48 **
49 *******************************************************************************/
nativeLlcpServiceSocket_doAccept(JNIEnv * e,jobject o,jint miu,jint rw,jint)50 static jobject nativeLlcpServiceSocket_doAccept(JNIEnv *e, jobject o, jint miu, jint rw, jint /*linearBufferLength*/)
51 {
52 jobject clientSocket = NULL;
53 jclass clsNativeLlcpSocket = NULL;
54 jfieldID f = 0;
55 PeerToPeer::tJNI_HANDLE serverHandle; //handle of the local server
56 bool stat = false;
57 PeerToPeer::tJNI_HANDLE connHandle = PeerToPeer::getInstance().getNewJniHandle ();
58
59 ALOGV("%s: enter", __func__);
60
61 serverHandle = (PeerToPeer::tJNI_HANDLE) nfc_jni_get_nfc_socket_handle (e, o);
62
63 stat = PeerToPeer::getInstance().accept (serverHandle, connHandle, miu, rw);
64
65 if (! stat)
66 {
67 ALOGE("%s: fail accept", __func__);
68 goto TheEnd;
69 }
70
71 /* Create new LlcpSocket object */
72 if (nfc_jni_cache_object_local(e, gNativeLlcpSocketClassName, &(clientSocket)) == -1)
73 {
74 ALOGE("%s: fail create NativeLlcpSocket", __func__);
75 goto TheEnd;
76 }
77
78 /* Get NativeConnectionOriented class object */
79 clsNativeLlcpSocket = e->GetObjectClass (clientSocket);
80 if (e->ExceptionCheck())
81 {
82 e->ExceptionClear();
83 ALOGE("%s: get class object error", __func__);
84 goto TheEnd;
85 }
86
87 /* Set socket handle */
88 f = e->GetFieldID (clsNativeLlcpSocket, "mHandle", "I");
89 e->SetIntField (clientSocket, f, (jint) connHandle);
90
91 /* Set socket MIU */
92 f = e->GetFieldID (clsNativeLlcpSocket, "mLocalMiu", "I");
93 e->SetIntField (clientSocket, f, (jint)miu);
94
95 /* Set socket RW */
96 f = e->GetFieldID (clsNativeLlcpSocket, "mLocalRw", "I");
97 e->SetIntField (clientSocket, f, (jint)rw);
98
99 TheEnd:
100 ALOGV("%s: exit", __func__);
101 return clientSocket;
102 }
103
104
105 /*******************************************************************************
106 **
107 ** Function: nativeLlcpServiceSocket_doClose
108 **
109 ** Description: Close a server socket.
110 ** e: JVM environment.
111 ** o: Java object.
112 **
113 ** Returns: True if ok.
114 **
115 *******************************************************************************/
nativeLlcpServiceSocket_doClose(JNIEnv * e,jobject o)116 static jboolean nativeLlcpServiceSocket_doClose(JNIEnv *e, jobject o)
117 {
118 ALOGV("%s: enter", __func__);
119 PeerToPeer::tJNI_HANDLE jniServerHandle = 0;
120 bool stat = false;
121
122 jniServerHandle = nfc_jni_get_nfc_socket_handle (e, o);
123
124 stat = PeerToPeer::getInstance().deregisterServer (jniServerHandle);
125
126 ALOGV("%s: exit", __func__);
127 return JNI_TRUE;
128 }
129
130
131 /*****************************************************************************
132 **
133 ** Description: JNI functions
134 **
135 *****************************************************************************/
136 static JNINativeMethod gMethods[] =
137 {
138 {"doAccept", "(III)Lcom/android/nfc/dhimpl/NativeLlcpSocket;", (void*) nativeLlcpServiceSocket_doAccept},
139 {"doClose", "()Z", (void*) nativeLlcpServiceSocket_doClose},
140 };
141
142
143 /*******************************************************************************
144 **
145 ** Function: register_com_android_nfc_NativeLlcpServiceSocket
146 **
147 ** Description: Regisgter JNI functions with Java Virtual Machine.
148 ** e: Environment of JVM.
149 **
150 ** Returns: Status of registration.
151 **
152 *******************************************************************************/
register_com_android_nfc_NativeLlcpServiceSocket(JNIEnv * e)153 int register_com_android_nfc_NativeLlcpServiceSocket (JNIEnv* e)
154 {
155 return jniRegisterNativeMethods (e, gNativeLlcpServiceSocketClassName,
156 gMethods, NELEM(gMethods));
157 }
158
159
160 } //namespace android
161