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/slpi/nanoapp_load_manager.h"
18
19 namespace chre {
20
prepareForLoad(uint16_t hostClientId,uint32_t transactionId,uint64_t appId,uint32_t appVersion,size_t totalBinaryLen)21 bool NanoappLoadManager::prepareForLoad(uint16_t hostClientId,
22 uint32_t transactionId, uint64_t appId,
23 uint32_t appVersion,
24 size_t totalBinaryLen) {
25 if (hasPendingLoadTransaction()) {
26 LOGW(
27 "Pending load transaction already exists. Overriding previous"
28 " transaction.");
29 }
30 mCurrentLoadInfo.hostClientId = hostClientId;
31 mCurrentLoadInfo.transactionId = transactionId;
32 mCurrentLoadInfo.nextFragmentId = 1;
33 mNanoapp = MakeUnique<Nanoapp>();
34
35 bool success = false;
36 if (mNanoapp.isNull()) {
37 LOG_OOM();
38 } else {
39 success = mNanoapp->reserveBuffer(appId, appVersion, totalBinaryLen);
40 }
41
42 if (!success) {
43 markFailure();
44 }
45
46 return success;
47 }
48
copyNanoappFragment(uint16_t hostClientId,uint32_t transactionId,uint32_t fragmentId,const void * buffer,size_t bufferLen)49 bool NanoappLoadManager::copyNanoappFragment(uint16_t hostClientId,
50 uint32_t transactionId,
51 uint32_t fragmentId,
52 const void *buffer,
53 size_t bufferLen) {
54 bool success = false;
55 if (validateFragment(hostClientId, transactionId, fragmentId)) {
56 success = mNanoapp->copyNanoappFragment(buffer, bufferLen);
57 if (success) {
58 mCurrentLoadInfo.nextFragmentId++;
59 } else {
60 markFailure();
61 }
62 }
63
64 return success;
65 }
66
validateFragment(uint16_t hostClientId,uint32_t transactionId,uint32_t fragmentId) const67 bool NanoappLoadManager::validateFragment(uint16_t hostClientId,
68 uint32_t transactionId,
69 uint32_t fragmentId) const {
70 bool valid = false;
71 if (!hasPendingLoadTransaction()) {
72 LOGE("No pending load transaction exists");
73 } else {
74 const FragmentedLoadInfo &info = mCurrentLoadInfo;
75 valid = (info.hostClientId == hostClientId &&
76 info.transactionId == transactionId &&
77 info.nextFragmentId == fragmentId);
78 if (!valid) {
79 LOGE("Unexpected load fragment: expected host %" PRIu16
80 "transaction %" PRIu32 " fragment %" PRIu32
81 ", received host %" PRIu16 " transaction %" PRIu32
82 " fragment %" PRIu32,
83 info.hostClientId, info.transactionId, info.nextFragmentId,
84 hostClientId, transactionId, fragmentId);
85 }
86 }
87
88 return valid;
89 }
90
91 } // namespace chre
92