1 /*
2 * Copyright (C) 2021 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #include "ipc_callback_proxy.h"
17 #include "hc_log.h"
18 #include "hc_types.h"
19 #include "ipc_adapt.h"
20 #include "liteipc_adapter.h"
21 #include "securec.h"
22
23 #ifdef __cplusplus
24 extern "C" {
25 #endif
26
CbProxyFormReplyData(int32_t reqRetVal,IpcIo * replyDst,const IpcIo * replySrc)27 static void CbProxyFormReplyData(int32_t reqRetVal, IpcIo *replyDst, const IpcIo *replySrc)
28 {
29 errno_t eno;
30
31 if (!IpcIoAvailable((IpcIo *)replySrc)) {
32 LOGE("reply context is not available");
33 *(int32_t *)(replyDst->bufferCur) = -1;
34 replyDst->bufferLeft = sizeof(int32_t);
35 return;
36 }
37 if (reqRetVal != 0) {
38 *(int32_t *)(replyDst->bufferCur) = reqRetVal;
39 replyDst->bufferLeft = sizeof(int32_t);
40 return;
41 }
42
43 LOGI("with reply data, length(%zu), flag(%u)", replySrc->bufferLeft, replySrc->flag);
44 eno = memcpy_s(replyDst->bufferCur, replyDst->bufferLeft, replySrc->bufferCur, replySrc->bufferLeft);
45 if (eno != EOK) {
46 replyDst->flag = 0;
47 LOGE("memory copy reply data failed");
48 return;
49 }
50 replyDst->bufferLeft = replySrc->bufferLeft;
51 LOGI("out reply data, length(%zu)", replyDst->bufferLeft);
52 return;
53 }
54
CbProxySendRequest(SvcIdentity sid,int32_t callbackId,uintptr_t cbHook,IpcIo * data,IpcIo * reply)55 void CbProxySendRequest(SvcIdentity sid, int32_t callbackId, uintptr_t cbHook, IpcIo *data, IpcIo *reply)
56 {
57 int32_t ret;
58 IpcIo *reqData = NULL;
59 int32_t dataSz;
60 uintptr_t outMsg = 0x0;
61 IpcIo replyTmp;
62
63 ShowIpcSvcInfo(&(sid));
64 reqData = (IpcIo *)InitIpcDataCache(IPC_DATA_BUFF_MAX_SZ);
65 if (reqData == NULL) {
66 return;
67 }
68 IpcIoPushInt32(reqData, callbackId);
69 IpcIoPushUintptr(reqData, cbHook);
70 dataSz = GetIpcIoDataLength((const IpcIo *)data);
71 LOGI("to form callback params data length(%d)", dataSz);
72 if (dataSz > 0) {
73 IpcIoPushFlatObj(reqData, data->bufferBase + IpcIoBufferOffset(), dataSz);
74 }
75 if (!IpcIoAvailable(reqData)) {
76 LOGE("form send data failed");
77 HcFree((void *)reqData);
78 return;
79 }
80 /* callFlag: ipc mode is blocking or non blocking. */
81 int32_t callFlag = ((reply != NULL) ? LITEIPC_FLAG_DEFAULT : LITEIPC_FLAG_ONEWAY);
82 ret = SendRequest(NULL, sid, DEV_AUTH_CALLBACK_REQUEST, reqData, &replyTmp, callFlag, &outMsg);
83 LOGI("SendRequest(%d) done, return(%d)", callFlag, ret);
84 HcFree((void *)reqData);
85 if (reply == NULL) {
86 FreeBuffer(NULL, (void *)outMsg);
87 return;
88 }
89 CbProxyFormReplyData(ret, reply, &replyTmp);
90 FreeBuffer(NULL, (void *)outMsg);
91 return;
92 }
93
94 #ifdef __cplusplus
95 }
96 #endif
97