1 /*
2 * Copyright (C) 2018 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 "chre/platform/shared/nanoapp_load_manager.h"
18
19 namespace chre {
20
prepareForLoad(uint16_t hostClientId,uint32_t transactionId,uint64_t appId,uint32_t appVersion,uint32_t appFlags,size_t totalBinaryLen,uint32_t targetApiVersion)21 bool NanoappLoadManager::prepareForLoad(uint16_t hostClientId,
22 uint32_t transactionId, uint64_t appId,
23 uint32_t appVersion, uint32_t appFlags,
24 size_t totalBinaryLen,
25 uint32_t targetApiVersion) {
26 mCurrentLoadInfo.hostClientId = hostClientId;
27 mCurrentLoadInfo.transactionId = transactionId;
28 mCurrentLoadInfo.nextFragmentId = 1;
29 mNanoapp = MakeUnique<Nanoapp>();
30
31 bool success = false;
32 if (mNanoapp.isNull()) {
33 LOG_OOM();
34 } else {
35 success = mNanoapp->reserveBuffer(appId, appVersion, appFlags,
36 totalBinaryLen, targetApiVersion);
37 }
38
39 if (!success) {
40 markFailure();
41 }
42
43 return success;
44 }
45
copyNanoappFragment(uint16_t hostClientId,uint32_t transactionId,uint32_t fragmentId,const void * buffer,size_t bufferLen)46 bool NanoappLoadManager::copyNanoappFragment(uint16_t hostClientId,
47 uint32_t transactionId,
48 uint32_t fragmentId,
49 const void *buffer,
50 size_t bufferLen) {
51 bool success = false;
52 if (validateFragment(hostClientId, transactionId, fragmentId)) {
53 success = mNanoapp->copyNanoappFragment(buffer, bufferLen);
54 if (success) {
55 mCurrentLoadInfo.nextFragmentId++;
56 } else {
57 markFailure();
58 }
59 }
60
61 return success;
62 }
63
validateFragment(uint16_t hostClientId,uint32_t transactionId,uint32_t fragmentId) const64 bool NanoappLoadManager::validateFragment(uint16_t hostClientId,
65 uint32_t transactionId,
66 uint32_t fragmentId) const {
67 bool valid = false;
68 if (!hasPendingLoadTransaction()) {
69 LOGE("No pending load transaction exists");
70 } else {
71 const FragmentedLoadInfo &info = mCurrentLoadInfo;
72 valid = (info.hostClientId == hostClientId &&
73 info.transactionId == transactionId &&
74 info.nextFragmentId == fragmentId);
75 if (!valid) {
76 LOGE("Unexpected load fragment: expected host %" PRIu16
77 "transaction %" PRIu32 " fragment %" PRIu32
78 ", received host %" PRIu16 " transaction %" PRIu32
79 " fragment %" PRIu32,
80 info.hostClientId, info.transactionId, info.nextFragmentId,
81 hostClientId, transactionId, fragmentId);
82 }
83 }
84
85 return valid;
86 }
87
88 } // namespace chre
89