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 if (hasPendingLoadTransaction()) {
27 LOGW(
28 "Pending load transaction already exists. Overriding previous"
29 " transaction.");
30 }
31
32 mCurrentLoadInfo.hostClientId = hostClientId;
33 mCurrentLoadInfo.transactionId = transactionId;
34 mCurrentLoadInfo.nextFragmentId = 1;
35 mNanoapp = MakeUnique<Nanoapp>();
36
37 bool success = false;
38 if (mNanoapp.isNull()) {
39 LOG_OOM();
40 } else {
41 success = mNanoapp->reserveBuffer(appId, appVersion, appFlags,
42 totalBinaryLen, targetApiVersion);
43 }
44
45 if (!success) {
46 markFailure();
47 }
48
49 return success;
50 }
51
copyNanoappFragment(uint16_t hostClientId,uint32_t transactionId,uint32_t fragmentId,const void * buffer,size_t bufferLen)52 bool NanoappLoadManager::copyNanoappFragment(uint16_t hostClientId,
53 uint32_t transactionId,
54 uint32_t fragmentId,
55 const void *buffer,
56 size_t bufferLen) {
57 bool success = false;
58 if (validateFragment(hostClientId, transactionId, fragmentId)) {
59 success = mNanoapp->copyNanoappFragment(buffer, bufferLen);
60 if (success) {
61 mCurrentLoadInfo.nextFragmentId++;
62 } else {
63 markFailure();
64 }
65 }
66
67 return success;
68 }
69
validateFragment(uint16_t hostClientId,uint32_t transactionId,uint32_t fragmentId) const70 bool NanoappLoadManager::validateFragment(uint16_t hostClientId,
71 uint32_t transactionId,
72 uint32_t fragmentId) const {
73 bool valid = false;
74 if (!hasPendingLoadTransaction()) {
75 LOGE("No pending load transaction exists");
76 } else {
77 const FragmentedLoadInfo &info = mCurrentLoadInfo;
78 valid = (info.hostClientId == hostClientId &&
79 info.transactionId == transactionId &&
80 info.nextFragmentId == fragmentId);
81 if (!valid) {
82 LOGE("Unexpected load fragment: expected host %" PRIu16
83 "transaction %" PRIu32 " fragment %" PRIu32
84 ", received host %" PRIu16 " transaction %" PRIu32
85 " fragment %" PRIu32,
86 info.hostClientId, info.transactionId, info.nextFragmentId,
87 hostClientId, transactionId, fragmentId);
88 }
89 }
90
91 return valid;
92 }
93
94 } // namespace chre
95