1 /*
2 * Copyright (C) 2025 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 // An implementation of the native-bridge interface for testing.
18
19 #include "NativeBridge8IdentifyTrampolines_lib.h"
20 #include "nativebridge/native_bridge.h"
21
22 // NativeBridgeCallbacks implementations
native_bridge8_initialize(const android::NativeBridgeRuntimeCallbacks *,const char *,const char *)23 extern "C" bool native_bridge8_initialize(
24 const android::NativeBridgeRuntimeCallbacks* /* art_cbs */,
25 const char* /* app_code_cache_dir */,
26 const char* /* isa */) {
27 return true;
28 }
29
native_bridge8_loadLibrary(const char *,int)30 extern "C" void* native_bridge8_loadLibrary(const char* /* libpath */, int /* flag */) {
31 return nullptr;
32 }
33
native_bridge8_getTrampoline(void *,const char *,const char *,uint32_t)34 extern "C" void* native_bridge8_getTrampoline(void* /* handle */,
35 const char* /* name */,
36 const char* /* shorty */,
37 uint32_t /* len */) {
38 return nullptr;
39 }
40
native_bridge8_getTrampoline2(void *,const char *,const char *,uint32_t,android::JNICallType)41 extern "C" void* native_bridge8_getTrampoline2(void* /* handle */,
42 const char* /* name */,
43 const char* /* shorty */,
44 uint32_t /* len */,
45 android::JNICallType /* jni_call_type */) {
46 return nullptr;
47 }
48
native_bridge8_getTrampolineForFunctionPointer(const void *,const char *,uint32_t,android::JNICallType)49 extern "C" void* native_bridge8_getTrampolineForFunctionPointer(
50 const void* /* method */,
51 const char* /* shorty */,
52 uint32_t /* len */,
53 android::JNICallType /* jni_call_type */) {
54 return nullptr;
55 }
56
native_bridge8_isSupported(const char *)57 extern "C" bool native_bridge8_isSupported(const char* /* libpath */) { return false; }
58
native_bridge8_getAppEnv(const char *)59 extern "C" const struct android::NativeBridgeRuntimeValues* native_bridge8_getAppEnv(
60 const char* /* abi */) {
61 return nullptr;
62 }
63
native_bridge8_isCompatibleWith(uint32_t version)64 extern "C" bool native_bridge8_isCompatibleWith(uint32_t version) {
65 // For testing, allow 1-8, but disallow 9+.
66 return version <= 8;
67 }
68
native_bridge8_getSignalHandler(int)69 extern "C" android::NativeBridgeSignalHandlerFn native_bridge8_getSignalHandler(int /* signal */) {
70 return nullptr;
71 }
72
native_bridge8_unloadLibrary(void *)73 extern "C" int native_bridge8_unloadLibrary(void* /* handle */) { return 0; }
74
native_bridge8_getError()75 extern "C" const char* native_bridge8_getError() { return nullptr; }
76
native_bridge8_isPathSupported(const char *)77 extern "C" bool native_bridge8_isPathSupported(const char* /* path */) { return true; }
78
native_bridge8_createNamespace(const char *,const char *,const char *,uint64_t,const char *,android::native_bridge_namespace_t *)79 extern "C" android::native_bridge_namespace_t* native_bridge8_createNamespace(
80 const char* /* name */,
81 const char* /* ld_library_path */,
82 const char* /* default_library_path */,
83 uint64_t /* type */,
84 const char* /* permitted_when_isolated_path */,
85 android::native_bridge_namespace_t* /* parent_ns */) {
86 return nullptr;
87 }
88
native_bridge8_linkNamespaces(android::native_bridge_namespace_t *,android::native_bridge_namespace_t *,const char *)89 extern "C" bool native_bridge8_linkNamespaces(android::native_bridge_namespace_t* /* from */,
90 android::native_bridge_namespace_t* /* to */,
91 const char* /* shared_libs_soname */) {
92 return true;
93 }
94
native_bridge8_loadLibraryExt(const char *,int,android::native_bridge_namespace_t *)95 extern "C" void* native_bridge8_loadLibraryExt(const char* /* libpath */,
96 int /* flag */,
97 android::native_bridge_namespace_t* /* ns */) {
98 return nullptr;
99 }
100
native_bridge8_getVendorNamespace()101 extern "C" android::native_bridge_namespace_t* native_bridge8_getVendorNamespace() {
102 return nullptr;
103 }
104
native_bridge8_getExportedNamespace(const char *)105 extern "C" android::native_bridge_namespace_t* native_bridge8_getExportedNamespace(
106 const char* /* name */) {
107 return nullptr;
108 }
109
native_bridge8_isNativeBridgeFunctionPointer(const void * ptr)110 extern "C" bool native_bridge8_isNativeBridgeFunctionPointer(const void* ptr) {
111 android::SetIsNativeBridgeFunctionPointerCalledFor(ptr);
112 return true;
113 }
114
native_bridge8_preZygoteFork()115 extern "C" void native_bridge8_preZygoteFork() {}
116
117 android::NativeBridgeCallbacks NativeBridgeItf{
118 // v1
119 .version = 8,
120 .initialize = &native_bridge8_initialize,
121 .loadLibrary = &native_bridge8_loadLibrary,
122 .getTrampoline = &native_bridge8_getTrampoline,
123 .isSupported = &native_bridge8_isSupported,
124 .getAppEnv = &native_bridge8_getAppEnv,
125 // v2
126 .isCompatibleWith = &native_bridge8_isCompatibleWith,
127 .getSignalHandler = &native_bridge8_getSignalHandler,
128 // v3
129 .unloadLibrary = &native_bridge8_unloadLibrary,
130 .getError = &native_bridge8_getError,
131 .isPathSupported = &native_bridge8_isPathSupported,
132 .unused_initAnonymousNamespace = nullptr,
133 .createNamespace = &native_bridge8_createNamespace,
134 .linkNamespaces = &native_bridge8_linkNamespaces,
135 .loadLibraryExt = &native_bridge8_loadLibraryExt,
136 // v4
137 &native_bridge8_getVendorNamespace,
138 // v5
139 &native_bridge8_getExportedNamespace,
140 // v6
141 &native_bridge8_preZygoteFork,
142 // v7
143 &native_bridge8_getTrampoline2,
144 &native_bridge8_getTrampolineForFunctionPointer,
145 // v8
146 &native_bridge8_isNativeBridgeFunctionPointer,
147 };
148