1 /*
2 * Copyright (C) 2017 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_dso_util.h"
18
19 #include <chre/version.h>
20 #include <cinttypes>
21 #include <cstring>
22
23 #include "chre/platform/log.h"
24
25 namespace chre {
26
validateAppInfo(uint64_t expectedAppId,uint32_t expectedAppVersion,uint32_t expectedTargetApiVersion,const struct chreNslNanoappInfo * appInfo)27 bool validateAppInfo(uint64_t expectedAppId, uint32_t expectedAppVersion,
28 uint32_t expectedTargetApiVersion,
29 const struct chreNslNanoappInfo *appInfo) {
30 uint32_t ourApiMajorVersion = CHRE_EXTRACT_MAJOR_VERSION(chreGetApiVersion());
31 uint32_t targetApiMajorVersion =
32 CHRE_EXTRACT_MAJOR_VERSION(appInfo->targetApiVersion);
33
34 bool success = false;
35 if (appInfo->magic != CHRE_NSL_NANOAPP_INFO_MAGIC) {
36 LOGE("Invalid app info magic: got 0x%08" PRIx32 " expected 0x%08" PRIx32,
37 appInfo->magic, static_cast<uint32_t>(CHRE_NSL_NANOAPP_INFO_MAGIC));
38 } else if (appInfo->appId == 0) {
39 LOGE("Rejecting invalid app ID 0");
40 } else if (expectedAppId != 0 && expectedAppId != appInfo->appId) {
41 LOGE("Expected app ID (0x%016" PRIx64
42 ") doesn't match internal one (0x%016" PRIx64 ")",
43 expectedAppId, appInfo->appId);
44 } else if (expectedAppVersion != appInfo->appVersion) {
45 LOGE("Expected app version (0x%" PRIx32
46 ") doesn't match internal one (0x%" PRIx32 ")",
47 expectedAppVersion, appInfo->appVersion);
48 } else if (expectedTargetApiVersion != appInfo->targetApiVersion) {
49 LOGE("Expected target API version (0x%" PRIx32
50 ") doesn't match"
51 " internal one (0x%" PRIx32 ")",
52 expectedTargetApiVersion, appInfo->targetApiVersion);
53 } else if (targetApiMajorVersion != ourApiMajorVersion) {
54 LOGE("App targets a different major API version (%" PRIu32
55 ") than what we provide (%" PRIu32 ")",
56 targetApiMajorVersion, ourApiMajorVersion);
57 } else if (strlen(appInfo->name) > CHRE_NSL_DSO_NANOAPP_STRING_MAX_LEN) {
58 LOGE("App name is too long");
59 } else if (strlen(appInfo->vendor) > CHRE_NSL_DSO_NANOAPP_STRING_MAX_LEN) {
60 LOGE("App vendor is too long");
61 } else {
62 success = true;
63 }
64
65 return success;
66 }
67
68 } // namespace chre
69