1 /**
2  * Copyright (C) 2021 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 <IMediaExtractor.h>
18 #include <dlfcn.h>
19 #include "../includes/common.h"
20 #include "../includes/memutils.h"
21 
22 #if _32_BIT
23 #define LIBNAME "/system/lib/extractors/libmidiextractor.so"
24 #define LIBNAME_APEX "/apex/com.android.media/lib/extractors/libmidiextractor.so"
25 #elif _64_BIT
26 #define LIBNAME "/system/lib64/extractors/libmidiextractor.so"
27 #define LIBNAME_APEX "/apex/com.android.media/lib64/extractors/libmidiextractor.so"
28 #endif
29 
30 char enable_selective_overload = ENABLE_NONE;
31 
32 using namespace android;
33 
34 bool isTestInProgress = false;
35 
36 struct sigaction new_action, old_action;
37 
38 int fdData, fdInfo;
39 
40 void *libHandle = nullptr;
41 
sigsegv_handler(int signum,siginfo_t * info,void * context)42 void sigsegv_handler(int signum, siginfo_t *info, void *context) {
43     if (isTestInProgress && info->si_signo == SIGSEGV) {
44         (*old_action.sa_sigaction)(signum, info, context);
45         return;
46     }
47     _exit(EXIT_FAILURE);
48 }
49 
50 class XMFDataSource : public DataSource {
51    public:
52     int mFdData;
53     int mFdInfo;
XMFDataSource(int fdData,int fdInfo)54     XMFDataSource(int fdData, int fdInfo) {
55         mFdData = fdData;
56         mFdInfo = fdInfo;
57   }
58 
59   ~XMFDataSource() = default;
60 
readAt(off64_t offset,void * data,size_t size)61   virtual ssize_t readAt(off64_t offset __attribute__((unused)), void *data, size_t size) {
62       uint32_t infoOffset, infoSize;
63       read(mFdInfo, &infoSize, sizeof(int32_t));
64       read(mFdInfo, &infoOffset, sizeof(int32_t));
65       lseek(mFdData, infoOffset, SEEK_SET);
66       read(mFdData, data, infoSize);
67       return size;
68   }
69 
getSize(off64_t * size)70   virtual status_t getSize(off64_t *size) {
71     *size = 0x10000;
72     return 0;
73   }
initCheck() const74   virtual status_t initCheck() const { return 0; }
75 };
76 
close_resources()77 void close_resources() {
78     if (fdData >= 0) {
79         ::close(fdData);
80     }
81     if (fdInfo >= 0) {
82         ::close(fdInfo);
83     }
84     if (libHandle) {
85         dlclose(libHandle);
86     }
87 }
88 
main(int argc,char ** argv)89 int main(int argc, char **argv) {
90     atexit(close_resources);
91 
92     sigemptyset(&new_action.sa_mask);
93     new_action.sa_flags = SA_SIGINFO;
94     new_action.sa_sigaction = sigsegv_handler;
95     sigaction(SIGSEGV, &new_action, &old_action);
96 
97     FAIL_CHECK(argc == 3);
98     libHandle = dlopen(LIBNAME, RTLD_NOW | RTLD_LOCAL);
99     if (!libHandle) {
100         libHandle = dlopen(LIBNAME_APEX, RTLD_NOW | RTLD_LOCAL);
101         FAIL_CHECK(libHandle);
102   }
103 
104   GetExtractorDef getDef = (GetExtractorDef)dlsym(libHandle, "GETEXTRACTORDEF");
105   FAIL_CHECK(getDef);
106 
107   fdData = open(argv[1], O_RDONLY);
108   FAIL_CHECK(fdData >= 0);
109 
110   fdInfo = open(argv[2], O_RDONLY);
111   FAIL_CHECK(fdInfo >= 0);
112 
113   sp<DataSource> dataSource = (sp<DataSource>)new XMFDataSource(fdData, fdInfo);
114   FAIL_CHECK(dataSource);
115 
116   enable_selective_overload = ENABLE_ALL;
117   isTestInProgress = true;
118 
119   void *meta = nullptr;
120   FreeMetaFunc freeMeta = nullptr;
121   float confidence = 0.0f;
122   if (getDef().def_version == EXTRACTORDEF_VERSION_NDK_V1) {
123     getDef().u.v2.sniff(dataSource->wrap(), &confidence, &meta, &freeMeta);
124   } else if (getDef().def_version == EXTRACTORDEF_VERSION_NDK_V2) {
125     getDef().u.v3.sniff(dataSource->wrap(), &confidence, &meta, &freeMeta);
126   }
127 
128   isTestInProgress = false;
129   enable_selective_overload = ENABLE_FREE_CHECK | ENABLE_REALLOC_CHECK;
130   return EXIT_SUCCESS;
131 }
132