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/util/nanoapp/app_id.h"
18 #include "chre/util/system/napp_header_utils.h"
19 #include "chre_host/host_protocol_host.h"
20 #include "chre_host/log.h"
21 #include "chre_host/socket_client.h"
22 
23 #include <inttypes.h>
24 #include <sys/socket.h>
25 #include <sys/types.h>
26 
27 #include <fstream>
28 #include <thread>
29 
30 #include <cutils/sockets.h>
31 #include <utils/StrongPointer.h>
32 
33 /**
34  * @file
35  * A test utility that loads the audio stress test nanoapp and quits.
36  */
37 
38 using android::sp;
39 using android::chre::FragmentedLoadTransaction;
40 using android::chre::getStringFromByteVector;
41 using android::chre::HostProtocolHost;
42 using android::chre::IChreMessageHandlers;
43 using android::chre::SocketClient;
44 using flatbuffers::FlatBufferBuilder;
45 
46 // Aliased for consistency with the way these symbols are referenced in
47 // CHRE-side code
48 namespace fbs = ::chre::fbs;
49 
50 namespace {
51 
52 class SocketCallbacks : public SocketClient::ICallbacks,
53                         public IChreMessageHandlers {
54  public:
onMessageReceived(const void * data,size_t length)55   void onMessageReceived(const void *data, size_t length) override {
56     if (!HostProtocolHost::decodeMessageFromChre(data, length, *this)) {
57       LOGE("Failed to decode message");
58     }
59   }
60 
onConnected()61   void onConnected() override {
62     LOGI("Socket (re)connected");
63   }
64 
onConnectionAborted()65   void onConnectionAborted() override {
66     LOGI("Socket (re)connection aborted");
67   }
68 
onDisconnected()69   void onDisconnected() override {
70     LOGI("Socket disconnected");
71   }
72 
handleLoadNanoappResponse(const fbs::LoadNanoappResponseT & response)73   void handleLoadNanoappResponse(
74       const fbs::LoadNanoappResponseT &response) override {
75     LOGI("Got load nanoapp response, transaction ID 0x%" PRIx32 " result %d",
76          response.transaction_id, response.success);
77   }
78 };
79 
sendLoadNanoappRequest(SocketClient & client,const char * filename,uint64_t appId,uint32_t appVersion)80 void sendLoadNanoappRequest(SocketClient &client, const char *filename,
81                             uint64_t appId, uint32_t appVersion) {
82   std::ifstream file(filename, std::ios::binary | std::ios::ate);
83   if (!file) {
84     LOGE("Couldn't open file '%s': %s", filename, strerror(errno));
85     return;
86   }
87   ssize_t size = file.tellg();
88   file.seekg(0, std::ios::beg);
89 
90   std::vector<uint8_t> buffer(size);
91   if (!file.read(reinterpret_cast<char *>(buffer.data()), size)) {
92     LOGE("Couldn't read from file: %s", strerror(errno));
93     return;
94   }
95 
96   // All loaded nanoapps must be signed currently.
97   uint32_t appFlags = CHRE_NAPP_HEADER_SIGNED;
98 
99   // Perform loading with 1 fragment for simplicity
100   FlatBufferBuilder builder(size + 128);
101   FragmentedLoadTransaction transaction =
102       FragmentedLoadTransaction(1 /* transactionId */, appId, appVersion,
103                                 appFlags, 0x01000000 /* targetApiVersion */,
104                                 buffer, buffer.size() /* fragmentSize */);
105   HostProtocolHost::encodeFragmentedLoadNanoappRequest(
106       builder, transaction.getNextRequest());
107 
108   LOGI("Sending load nanoapp request (%" PRIu32
109        " bytes total w/%zu bytes of payload)",
110        builder.GetSize(), buffer.size());
111   if (!client.sendMessage(builder.GetBufferPointer(), builder.GetSize())) {
112     LOGE("Failed to send message");
113   }
114 }
115 
116 }  // anonymous namespace
117 
main()118 int main() {
119   SocketClient client;
120   sp<SocketCallbacks> callbacks = new SocketCallbacks();
121 
122   if (!client.connect("chre", callbacks)) {
123     LOGE("Couldn't connect to socket");
124   } else {
125     sendLoadNanoappRequest(client, "/data/audio_stress_test.so",
126                            chre::kAudioStressTestAppId, 1 /* appVersion */);
127   }
128 
129   return 0;
130 }
131