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(
22 uint16_t hostClientId, uint32_t transactionId, uint64_t appId,
23 uint32_t appVersion, size_t totalBinaryLen) {
24 if (hasPendingLoadTransaction()) {
25 LOGW("Pending load transaction already exists. Overriding previous"
26 " transaction.");
27 }
28 mCurrentLoadInfo.hostClientId = hostClientId;
29 mCurrentLoadInfo.transactionId = transactionId;
30 mCurrentLoadInfo.nextFragmentId = 1;
31 mNanoapp = MakeUnique<Nanoapp>();
32
33 bool success = false;
34 if (mNanoapp.isNull()) {
35 LOG_OOM();
36 } else {
37 success = mNanoapp->reserveBuffer(appId, appVersion, totalBinaryLen);
38 }
39
40 if (!success) {
41 markFailure();
42 }
43
44 return success;
45 }
46
copyNanoappFragment(uint16_t hostClientId,uint32_t transactionId,uint32_t fragmentId,const void * buffer,size_t bufferLen)47 bool NanoappLoadManager::copyNanoappFragment(
48 uint16_t hostClientId, uint32_t transactionId, uint32_t fragmentId,
49 const void *buffer, size_t bufferLen) {
50 bool success = false;
51 if (validateFragment(hostClientId, transactionId, fragmentId)) {
52 success = mNanoapp->copyNanoappFragment(buffer, bufferLen);
53 if (success) {
54 mCurrentLoadInfo.nextFragmentId++;
55 } else {
56 markFailure();
57 }
58 }
59
60 return success;
61 }
62
validateFragment(uint16_t hostClientId,uint32_t transactionId,uint32_t fragmentId) const63 bool NanoappLoadManager::validateFragment(
64 uint16_t hostClientId, uint32_t transactionId, uint32_t fragmentId) const {
65 bool valid = false;
66 if (!hasPendingLoadTransaction()) {
67 LOGE("No pending load transaction exists");
68 } else {
69 const FragmentedLoadInfo& info = mCurrentLoadInfo;
70 valid = (info.hostClientId == hostClientId
71 && info.transactionId == transactionId
72 && info.nextFragmentId == fragmentId);
73 if (!valid) {
74 LOGE("Unexpected load fragment: expected host %" PRIu16
75 "transaction %" PRIu32 " fragment %" PRIu32 ", received host %"
76 PRIu16 " transaction %" PRIu32 " fragment %" PRIu32,
77 info.hostClientId, info.transactionId, info.nextFragmentId,
78 hostClientId, transactionId, fragmentId);
79 }
80 }
81
82 return valid;
83 }
84
85 } // namespace chre
86