Dimitry Ivanov | ac1b191 | 2015-12-01 13:56:44 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2015 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 "nativeloader/native_loader.h" |
Steven Moreland | 00fe3ad | 2017-07-18 16:53:54 -0700 | [diff] [blame] | 18 | #include <nativehelper/ScopedUtfChars.h> |
Dimitry Ivanov | ac1b191 | 2015-12-01 13:56:44 -0800 | [diff] [blame] | 19 | |
| 20 | #include <dlfcn.h> |
| 21 | #ifdef __ANDROID__ |
Dimitry Ivanov | 7f9a1aa | 2016-03-22 13:59:59 -0700 | [diff] [blame] | 22 | #define LOG_TAG "libnativeloader" |
Jesse Hall | b75d82b | 2017-01-09 16:04:28 -0800 | [diff] [blame] | 23 | #include "nativeloader/dlext_namespaces.h" |
Mark Salyzyn | ff2dcd9 | 2016-09-28 15:54:45 -0700 | [diff] [blame] | 24 | #include "cutils/properties.h" |
Mark Salyzyn | 30f991f | 2017-01-10 13:19:54 -0800 | [diff] [blame] | 25 | #include "log/log.h" |
Dimitry Ivanov | ac1b191 | 2015-12-01 13:56:44 -0800 | [diff] [blame] | 26 | #endif |
Jiyong Park | d1006fe | 2017-11-08 18:44:09 +0900 | [diff] [blame] | 27 | #include <dirent.h> |
| 28 | #include <sys/types.h> |
Zhenhua WANG | f2804e5 | 2016-05-30 11:16:08 +0800 | [diff] [blame] | 29 | #include "nativebridge/native_bridge.h" |
Dimitry Ivanov | ac1b191 | 2015-12-01 13:56:44 -0800 | [diff] [blame] | 30 | |
| 31 | #include <algorithm> |
Jiyong Park | d1006fe | 2017-11-08 18:44:09 +0900 | [diff] [blame] | 32 | #include <memory> |
Dimitry Ivanov | ac1b191 | 2015-12-01 13:56:44 -0800 | [diff] [blame] | 33 | #include <mutex> |
Jiyong Park | d1006fe | 2017-11-08 18:44:09 +0900 | [diff] [blame] | 34 | #include <string> |
| 35 | #include <vector> |
Dimitry Ivanov | ac1b191 | 2015-12-01 13:56:44 -0800 | [diff] [blame] | 36 | |
Mark Salyzyn | ff2dcd9 | 2016-09-28 15:54:45 -0700 | [diff] [blame] | 37 | #include <android-base/file.h> |
| 38 | #include <android-base/macros.h> |
| 39 | #include <android-base/strings.h> |
Dimitry Ivanov | ac1b191 | 2015-12-01 13:56:44 -0800 | [diff] [blame] | 40 | |
Justin Yun | 4a1d110 | 2017-11-27 17:04:14 +0900 | [diff] [blame] | 41 | #ifdef __BIONIC__ |
| 42 | #include <android-base/properties.h> |
| 43 | #endif |
| 44 | |
Zhenhua WANG | f2804e5 | 2016-05-30 11:16:08 +0800 | [diff] [blame] | 45 | #define CHECK(predicate) LOG_ALWAYS_FATAL_IF(!(predicate),\ |
| 46 | "%s:%d: %s CHECK '" #predicate "' failed.",\ |
| 47 | __FILE__, __LINE__, __FUNCTION__) |
| 48 | |
Dimitry Ivanov | ac1b191 | 2015-12-01 13:56:44 -0800 | [diff] [blame] | 49 | namespace android { |
| 50 | |
Dimitry Ivanov | 4b0e963 | 2016-03-15 13:51:26 -0700 | [diff] [blame] | 51 | #if defined(__ANDROID__) |
Zhenhua WANG | f2804e5 | 2016-05-30 11:16:08 +0800 | [diff] [blame] | 52 | class NativeLoaderNamespace { |
| 53 | public: |
| 54 | NativeLoaderNamespace() |
| 55 | : android_ns_(nullptr), native_bridge_ns_(nullptr) { } |
| 56 | |
| 57 | explicit NativeLoaderNamespace(android_namespace_t* ns) |
| 58 | : android_ns_(ns), native_bridge_ns_(nullptr) { } |
| 59 | |
| 60 | explicit NativeLoaderNamespace(native_bridge_namespace_t* ns) |
| 61 | : android_ns_(nullptr), native_bridge_ns_(ns) { } |
| 62 | |
| 63 | NativeLoaderNamespace(NativeLoaderNamespace&& that) = default; |
| 64 | NativeLoaderNamespace(const NativeLoaderNamespace& that) = default; |
| 65 | |
| 66 | NativeLoaderNamespace& operator=(const NativeLoaderNamespace& that) = default; |
| 67 | |
| 68 | android_namespace_t* get_android_ns() const { |
| 69 | CHECK(native_bridge_ns_ == nullptr); |
| 70 | return android_ns_; |
| 71 | } |
| 72 | |
| 73 | native_bridge_namespace_t* get_native_bridge_ns() const { |
| 74 | CHECK(android_ns_ == nullptr); |
| 75 | return native_bridge_ns_; |
| 76 | } |
| 77 | |
| 78 | bool is_android_namespace() const { |
| 79 | return native_bridge_ns_ == nullptr; |
| 80 | } |
| 81 | |
| 82 | private: |
| 83 | // Only one of them can be not null |
| 84 | android_namespace_t* android_ns_; |
| 85 | native_bridge_namespace_t* native_bridge_ns_; |
| 86 | }; |
| 87 | |
Jiyong Park | d1006fe | 2017-11-08 18:44:09 +0900 | [diff] [blame] | 88 | static constexpr const char kPublicNativeLibrariesSystemConfigPathFromRoot[] = |
| 89 | "/etc/public.libraries.txt"; |
| 90 | static constexpr const char kPublicNativeLibrariesExtensionConfigPrefix[] = "public.libraries-"; |
| 91 | static constexpr const size_t kPublicNativeLibrariesExtensionConfigPrefixLen = |
| 92 | sizeof(kPublicNativeLibrariesExtensionConfigPrefix) - 1; |
| 93 | static constexpr const char kPublicNativeLibrariesExtensionConfigSuffix[] = ".txt"; |
| 94 | static constexpr const size_t kPublicNativeLibrariesExtensionConfigSuffixLen = |
| 95 | sizeof(kPublicNativeLibrariesExtensionConfigSuffix) - 1; |
| 96 | static constexpr const char kPublicNativeLibrariesVendorConfig[] = |
| 97 | "/vendor/etc/public.libraries.txt"; |
| 98 | static constexpr const char kLlndkNativeLibrariesSystemConfigPathFromRoot[] = |
| 99 | "/etc/llndk.libraries.txt"; |
| 100 | static constexpr const char kVndkspNativeLibrariesSystemConfigPathFromRoot[] = |
| 101 | "/etc/vndksp.libraries.txt"; |
Dimitry Ivanov | ac1b191 | 2015-12-01 13:56:44 -0800 | [diff] [blame] | 102 | |
Dimitry Ivanov | 882cad2 | 2017-05-01 15:12:49 -0700 | [diff] [blame] | 103 | // The device may be configured to have the vendor libraries loaded to a separate namespace. |
| 104 | // For historical reasons this namespace was named sphal but effectively it is intended |
| 105 | // to use to load vendor libraries to separate namespace with controlled interface between |
| 106 | // vendor and system namespaces. |
| 107 | static constexpr const char* kVendorNamespaceName = "sphal"; |
| 108 | |
Jiyong Park | a07f305 | 2017-08-22 10:26:10 +0900 | [diff] [blame] | 109 | static constexpr const char* kVndkNamespaceName = "vndk"; |
| 110 | |
| 111 | static constexpr const char* kClassloaderNamespaceName = "classloader-namespace"; |
| 112 | static constexpr const char* kVendorClassloaderNamespaceName = "vendor-classloader-namespace"; |
| 113 | |
Dimitry Ivanov | f334cbf | 2016-05-10 10:39:48 -0700 | [diff] [blame] | 114 | // (http://b/27588281) This is a workaround for apps using custom classloaders and calling |
| 115 | // System.load() with an absolute path which is outside of the classloader library search path. |
| 116 | // This list includes all directories app is allowed to access this way. |
| 117 | static constexpr const char* kWhitelistedDirectories = "/data:/mnt/expand"; |
| 118 | |
Dimitry Ivanov | 7d02829 | 2016-05-05 17:30:24 -0700 | [diff] [blame] | 119 | static bool is_debuggable() { |
| 120 | char debuggable[PROP_VALUE_MAX]; |
| 121 | property_get("ro.debuggable", debuggable, "0"); |
| 122 | return std::string(debuggable) == "1"; |
| 123 | } |
| 124 | |
Justin Yun | 4a1d110 | 2017-11-27 17:04:14 +0900 | [diff] [blame] | 125 | static std::string vndk_version_str() { |
| 126 | #ifdef __BIONIC__ |
| 127 | std::string version = android::base::GetProperty("ro.vndk.version", ""); |
| 128 | if (version != "" && version != "current") { |
| 129 | return "." + version; |
| 130 | } |
| 131 | #endif |
| 132 | return ""; |
| 133 | } |
| 134 | |
| 135 | static void insert_vndk_version_str(std::string* file_name) { |
| 136 | CHECK(file_name != nullptr); |
| 137 | size_t insert_pos = file_name->find_last_of("."); |
| 138 | if (insert_pos == std::string::npos) { |
| 139 | insert_pos = file_name->length(); |
| 140 | } |
| 141 | file_name->insert(insert_pos, vndk_version_str()); |
| 142 | } |
| 143 | |
Jiyong Park | d1006fe | 2017-11-08 18:44:09 +0900 | [diff] [blame] | 144 | static const std::function<bool(const std::string&, std::string*)> always_true = |
| 145 | [](const std::string&, std::string*) { return true; }; |
| 146 | |
Dimitry Ivanov | ac1b191 | 2015-12-01 13:56:44 -0800 | [diff] [blame] | 147 | class LibraryNamespaces { |
| 148 | public: |
Dimitry Ivanov | 426799d | 2016-02-22 11:27:48 -0800 | [diff] [blame] | 149 | LibraryNamespaces() : initialized_(false) { } |
Dimitry Ivanov | ac1b191 | 2015-12-01 13:56:44 -0800 | [diff] [blame] | 150 | |
Zhenhua WANG | f2804e5 | 2016-05-30 11:16:08 +0800 | [diff] [blame] | 151 | bool Create(JNIEnv* env, |
Dimitry Ivanov | 9e253ce | 2017-05-08 22:24:24 -0700 | [diff] [blame] | 152 | uint32_t target_sdk_version, |
Zhenhua WANG | f2804e5 | 2016-05-30 11:16:08 +0800 | [diff] [blame] | 153 | jobject class_loader, |
| 154 | bool is_shared, |
Jiyong Park | a07f305 | 2017-08-22 10:26:10 +0900 | [diff] [blame] | 155 | bool is_for_vendor, |
Zhenhua WANG | f2804e5 | 2016-05-30 11:16:08 +0800 | [diff] [blame] | 156 | jstring java_library_path, |
| 157 | jstring java_permitted_path, |
| 158 | NativeLoaderNamespace* ns, |
| 159 | std::string* error_msg) { |
Dimitry Ivanov | cf9892b | 2016-05-09 10:55:50 -0700 | [diff] [blame] | 160 | std::string library_path; // empty string by default. |
| 161 | |
| 162 | if (java_library_path != nullptr) { |
| 163 | ScopedUtfChars library_path_utf_chars(env, java_library_path); |
| 164 | library_path = library_path_utf_chars.c_str(); |
| 165 | } |
Dimitry Ivanov | ac1b191 | 2015-12-01 13:56:44 -0800 | [diff] [blame] | 166 | |
Dimitry Ivanov | f334cbf | 2016-05-10 10:39:48 -0700 | [diff] [blame] | 167 | // (http://b/27588281) This is a workaround for apps using custom |
| 168 | // classloaders and calling System.load() with an absolute path which |
| 169 | // is outside of the classloader library search path. |
| 170 | // |
| 171 | // This part effectively allows such a classloader to access anything |
| 172 | // under /data and /mnt/expand |
| 173 | std::string permitted_path = kWhitelistedDirectories; |
| 174 | |
Dimitry Ivanov | 0d6e594 | 2015-12-08 11:16:56 -0800 | [diff] [blame] | 175 | if (java_permitted_path != nullptr) { |
| 176 | ScopedUtfChars path(env, java_permitted_path); |
Dimitry Ivanov | d0b1531 | 2016-05-10 16:21:25 -0700 | [diff] [blame] | 177 | if (path.c_str() != nullptr && path.size() > 0) { |
| 178 | permitted_path = permitted_path + ":" + path.c_str(); |
| 179 | } |
Dimitry Ivanov | 0d6e594 | 2015-12-08 11:16:56 -0800 | [diff] [blame] | 180 | } |
| 181 | |
Zhenhua WANG | f2804e5 | 2016-05-30 11:16:08 +0800 | [diff] [blame] | 182 | if (!initialized_ && !InitPublicNamespace(library_path.c_str(), error_msg)) { |
| 183 | return false; |
Dimitry Ivanov | ac1b191 | 2015-12-01 13:56:44 -0800 | [diff] [blame] | 184 | } |
| 185 | |
Zhenhua WANG | f2804e5 | 2016-05-30 11:16:08 +0800 | [diff] [blame] | 186 | bool found = FindNamespaceByClassLoader(env, class_loader, nullptr); |
Dimitry Ivanov | ac1b191 | 2015-12-01 13:56:44 -0800 | [diff] [blame] | 187 | |
Zhenhua WANG | f2804e5 | 2016-05-30 11:16:08 +0800 | [diff] [blame] | 188 | LOG_ALWAYS_FATAL_IF(found, |
Dimitry Ivanov | 4b0e963 | 2016-03-15 13:51:26 -0700 | [diff] [blame] | 189 | "There is already a namespace associated with this classloader"); |
Dimitry Ivanov | ac1b191 | 2015-12-01 13:56:44 -0800 | [diff] [blame] | 190 | |
Dimitry Ivanov | d2a6220 | 2015-12-15 11:06:57 -0800 | [diff] [blame] | 191 | uint64_t namespace_type = ANDROID_NAMESPACE_TYPE_ISOLATED; |
| 192 | if (is_shared) { |
| 193 | namespace_type |= ANDROID_NAMESPACE_TYPE_SHARED; |
| 194 | } |
| 195 | |
Dimitry Ivanov | 9e253ce | 2017-05-08 22:24:24 -0700 | [diff] [blame] | 196 | if (target_sdk_version < 24) { |
| 197 | namespace_type |= ANDROID_NAMESPACE_TYPE_GREYLIST_ENABLED; |
| 198 | } |
| 199 | |
Zhenhua WANG | f2804e5 | 2016-05-30 11:16:08 +0800 | [diff] [blame] | 200 | NativeLoaderNamespace parent_ns; |
| 201 | bool found_parent_namespace = FindParentNamespaceByClassLoader(env, class_loader, &parent_ns); |
Dimitry Ivanov | 24db75c | 2016-05-12 15:34:41 -0700 | [diff] [blame] | 202 | |
Zhenhua WANG | f2804e5 | 2016-05-30 11:16:08 +0800 | [diff] [blame] | 203 | bool is_native_bridge = false; |
Dimitry Ivanov | ac1b191 | 2015-12-01 13:56:44 -0800 | [diff] [blame] | 204 | |
Zhenhua WANG | f2804e5 | 2016-05-30 11:16:08 +0800 | [diff] [blame] | 205 | if (found_parent_namespace) { |
| 206 | is_native_bridge = !parent_ns.is_android_namespace(); |
| 207 | } else if (!library_path.empty()) { |
| 208 | is_native_bridge = NativeBridgeIsPathSupported(library_path.c_str()); |
Dimitry Ivanov | d047c92 | 2016-02-23 14:23:51 -0800 | [diff] [blame] | 209 | } |
Dimitry Ivanov | ac1b191 | 2015-12-01 13:56:44 -0800 | [diff] [blame] | 210 | |
Jiyong Park | a07f305 | 2017-08-22 10:26:10 +0900 | [diff] [blame] | 211 | std::string system_exposed_libraries = system_public_libraries_; |
| 212 | const char* namespace_name = kClassloaderNamespaceName; |
| 213 | android_namespace_t* vndk_ns = nullptr; |
| 214 | if (is_for_vendor && !is_shared) { |
| 215 | LOG_FATAL_IF(is_native_bridge, "Unbundled vendor apk must not use translated architecture"); |
| 216 | |
| 217 | // For vendor apks, give access to the vendor lib even though |
| 218 | // they are treated as unbundled; the libs and apks are still bundled |
| 219 | // together in the vendor partition. |
| 220 | #if defined(__LP64__) |
| 221 | std::string vendor_lib_path = "/vendor/lib64"; |
| 222 | #else |
| 223 | std::string vendor_lib_path = "/vendor/lib"; |
| 224 | #endif |
| 225 | library_path = library_path + ":" + vendor_lib_path.c_str(); |
| 226 | permitted_path = permitted_path + ":" + vendor_lib_path.c_str(); |
| 227 | |
| 228 | // Also give access to LLNDK libraries since they are available to vendors |
| 229 | system_exposed_libraries = system_exposed_libraries + ":" + system_llndk_libraries_.c_str(); |
| 230 | |
| 231 | // Give access to VNDK-SP libraries from the 'vndk' namespace. |
| 232 | vndk_ns = android_get_exported_namespace(kVndkNamespaceName); |
| 233 | LOG_ALWAYS_FATAL_IF(vndk_ns == nullptr, |
| 234 | "Cannot find \"%s\" namespace for vendor apks", kVndkNamespaceName); |
| 235 | |
| 236 | // Different name is useful for debugging |
| 237 | namespace_name = kVendorClassloaderNamespaceName; |
| 238 | ALOGD("classloader namespace configured for unbundled vendor apk. library_path=%s", library_path.c_str()); |
| 239 | } |
| 240 | |
Zhenhua WANG | f2804e5 | 2016-05-30 11:16:08 +0800 | [diff] [blame] | 241 | NativeLoaderNamespace native_loader_ns; |
| 242 | if (!is_native_bridge) { |
Jiyong Park | a07f305 | 2017-08-22 10:26:10 +0900 | [diff] [blame] | 243 | android_namespace_t* ns = android_create_namespace(namespace_name, |
Zhenhua WANG | f2804e5 | 2016-05-30 11:16:08 +0800 | [diff] [blame] | 244 | nullptr, |
| 245 | library_path.c_str(), |
| 246 | namespace_type, |
| 247 | permitted_path.c_str(), |
| 248 | parent_ns.get_android_ns()); |
| 249 | if (ns == nullptr) { |
| 250 | *error_msg = dlerror(); |
| 251 | return false; |
| 252 | } |
| 253 | |
Dimitry Ivanov | 882cad2 | 2017-05-01 15:12:49 -0700 | [diff] [blame] | 254 | // Note that when vendor_ns is not configured this function will return nullptr |
| 255 | // and it will result in linking vendor_public_libraries_ to the default namespace |
| 256 | // which is expected behavior in this case. |
| 257 | android_namespace_t* vendor_ns = android_get_exported_namespace(kVendorNamespaceName); |
| 258 | |
Jiyong Park | a07f305 | 2017-08-22 10:26:10 +0900 | [diff] [blame] | 259 | if (!android_link_namespaces(ns, nullptr, system_exposed_libraries.c_str())) { |
Dimitry Ivanov | 26e1a84 | 2017-02-03 14:11:27 -0800 | [diff] [blame] | 260 | *error_msg = dlerror(); |
| 261 | return false; |
| 262 | } |
| 263 | |
Jiyong Park | a07f305 | 2017-08-22 10:26:10 +0900 | [diff] [blame] | 264 | if (vndk_ns != nullptr && !system_vndksp_libraries_.empty()) { |
| 265 | // vendor apks are allowed to use VNDK-SP libraries. |
| 266 | if (!android_link_namespaces(ns, vndk_ns, system_vndksp_libraries_.c_str())) { |
| 267 | *error_msg = dlerror(); |
| 268 | return false; |
| 269 | } |
| 270 | } |
| 271 | |
Dimitry Ivanov | 882cad2 | 2017-05-01 15:12:49 -0700 | [diff] [blame] | 272 | if (!vendor_public_libraries_.empty()) { |
| 273 | if (!android_link_namespaces(ns, vendor_ns, vendor_public_libraries_.c_str())) { |
| 274 | *error_msg = dlerror(); |
| 275 | return false; |
| 276 | } |
| 277 | } |
| 278 | |
Zhenhua WANG | f2804e5 | 2016-05-30 11:16:08 +0800 | [diff] [blame] | 279 | native_loader_ns = NativeLoaderNamespace(ns); |
| 280 | } else { |
Jiyong Park | a07f305 | 2017-08-22 10:26:10 +0900 | [diff] [blame] | 281 | native_bridge_namespace_t* ns = NativeBridgeCreateNamespace(namespace_name, |
Zhenhua WANG | f2804e5 | 2016-05-30 11:16:08 +0800 | [diff] [blame] | 282 | nullptr, |
| 283 | library_path.c_str(), |
| 284 | namespace_type, |
| 285 | permitted_path.c_str(), |
| 286 | parent_ns.get_native_bridge_ns()); |
Dimitry Ivanov | 882cad2 | 2017-05-01 15:12:49 -0700 | [diff] [blame] | 287 | |
Zhenhua WANG | f2804e5 | 2016-05-30 11:16:08 +0800 | [diff] [blame] | 288 | if (ns == nullptr) { |
| 289 | *error_msg = NativeBridgeGetError(); |
| 290 | return false; |
| 291 | } |
| 292 | |
Dimitry Ivanov | 882cad2 | 2017-05-01 15:12:49 -0700 | [diff] [blame] | 293 | native_bridge_namespace_t* vendor_ns = NativeBridgeGetVendorNamespace(); |
| 294 | |
Jiyong Park | a07f305 | 2017-08-22 10:26:10 +0900 | [diff] [blame] | 295 | if (!NativeBridgeLinkNamespaces(ns, nullptr, system_exposed_libraries.c_str())) { |
Zhenhua WANG | e8fb11d | 2017-02-27 10:14:45 +0800 | [diff] [blame] | 296 | *error_msg = NativeBridgeGetError(); |
| 297 | return false; |
| 298 | } |
| 299 | |
Dimitry Ivanov | 882cad2 | 2017-05-01 15:12:49 -0700 | [diff] [blame] | 300 | if (!vendor_public_libraries_.empty()) { |
| 301 | if (!NativeBridgeLinkNamespaces(ns, vendor_ns, vendor_public_libraries_.c_str())) { |
| 302 | *error_msg = NativeBridgeGetError(); |
| 303 | return false; |
| 304 | } |
| 305 | } |
| 306 | |
Zhenhua WANG | f2804e5 | 2016-05-30 11:16:08 +0800 | [diff] [blame] | 307 | native_loader_ns = NativeLoaderNamespace(ns); |
| 308 | } |
| 309 | |
| 310 | namespaces_.push_back(std::make_pair(env->NewWeakGlobalRef(class_loader), native_loader_ns)); |
| 311 | |
| 312 | *ns = native_loader_ns; |
| 313 | return true; |
Dimitry Ivanov | ac1b191 | 2015-12-01 13:56:44 -0800 | [diff] [blame] | 314 | } |
| 315 | |
Zhenhua WANG | f2804e5 | 2016-05-30 11:16:08 +0800 | [diff] [blame] | 316 | bool FindNamespaceByClassLoader(JNIEnv* env, jobject class_loader, NativeLoaderNamespace* ns) { |
Dimitry Ivanov | f44ecde | 2016-02-22 13:48:22 -0800 | [diff] [blame] | 317 | auto it = std::find_if(namespaces_.begin(), namespaces_.end(), |
Zhenhua WANG | f2804e5 | 2016-05-30 11:16:08 +0800 | [diff] [blame] | 318 | [&](const std::pair<jweak, NativeLoaderNamespace>& value) { |
Dimitry Ivanov | f44ecde | 2016-02-22 13:48:22 -0800 | [diff] [blame] | 319 | return env->IsSameObject(value.first, class_loader); |
| 320 | }); |
Zhenhua WANG | f2804e5 | 2016-05-30 11:16:08 +0800 | [diff] [blame] | 321 | if (it != namespaces_.end()) { |
| 322 | if (ns != nullptr) { |
| 323 | *ns = it->second; |
| 324 | } |
| 325 | |
| 326 | return true; |
| 327 | } |
| 328 | |
| 329 | return false; |
Dimitry Ivanov | f44ecde | 2016-02-22 13:48:22 -0800 | [diff] [blame] | 330 | } |
| 331 | |
Dimitry Ivanov | 4b0e963 | 2016-03-15 13:51:26 -0700 | [diff] [blame] | 332 | void Initialize() { |
Dimitry Ivanov | 80ddb8f | 2016-05-09 18:12:00 -0700 | [diff] [blame] | 333 | // Once public namespace is initialized there is no |
| 334 | // point in running this code - it will have no effect |
| 335 | // on the current list of public libraries. |
| 336 | if (initialized_) { |
| 337 | return; |
| 338 | } |
| 339 | |
Dimitry Ivanov | b614045 | 2016-04-06 18:24:08 -0700 | [diff] [blame] | 340 | std::vector<std::string> sonames; |
Dimitry Ivanov | 0b5651e | 2016-04-21 16:42:48 -0700 | [diff] [blame] | 341 | const char* android_root_env = getenv("ANDROID_ROOT"); |
| 342 | std::string root_dir = android_root_env != nullptr ? android_root_env : "/system"; |
| 343 | std::string public_native_libraries_system_config = |
| 344 | root_dir + kPublicNativeLibrariesSystemConfigPathFromRoot; |
Jiyong Park | a07f305 | 2017-08-22 10:26:10 +0900 | [diff] [blame] | 345 | std::string llndk_native_libraries_system_config = |
| 346 | root_dir + kLlndkNativeLibrariesSystemConfigPathFromRoot; |
| 347 | std::string vndksp_native_libraries_system_config = |
| 348 | root_dir + kVndkspNativeLibrariesSystemConfigPathFromRoot; |
Dimitry Ivanov | b614045 | 2016-04-06 18:24:08 -0700 | [diff] [blame] | 349 | |
Christopher Ferris | 39da84b | 2016-06-21 16:11:23 -0700 | [diff] [blame] | 350 | std::string error_msg; |
Jiyong Park | d1006fe | 2017-11-08 18:44:09 +0900 | [diff] [blame] | 351 | LOG_ALWAYS_FATAL_IF( |
| 352 | !ReadConfig(public_native_libraries_system_config, &sonames, always_true, &error_msg), |
| 353 | "Error reading public native library list from \"%s\": %s", |
| 354 | public_native_libraries_system_config.c_str(), error_msg.c_str()); |
| 355 | |
| 356 | // read /system/etc/public.libraries-<companyname>.txt which contain partner defined |
| 357 | // system libs that are exposed to apps. The libs in the txt files must be |
| 358 | // named as lib<name>.<companyname>.so. |
| 359 | std::string dirname = base::Dirname(public_native_libraries_system_config); |
| 360 | std::unique_ptr<DIR, decltype(&closedir)> dir(opendir(dirname.c_str()), closedir); |
| 361 | if (dir != nullptr) { |
| 362 | // Failing to opening the dir is not an error, which can happen in |
| 363 | // webview_zygote. |
| 364 | struct dirent* ent; |
| 365 | while ((ent = readdir(dir.get())) != nullptr) { |
| 366 | if (ent->d_type != DT_REG && ent->d_type != DT_LNK) { |
| 367 | continue; |
| 368 | } |
| 369 | const std::string filename(ent->d_name); |
| 370 | if (android::base::StartsWith(filename, kPublicNativeLibrariesExtensionConfigPrefix) && |
| 371 | android::base::EndsWith(filename, kPublicNativeLibrariesExtensionConfigSuffix)) { |
| 372 | const size_t start = kPublicNativeLibrariesExtensionConfigPrefixLen; |
| 373 | const size_t end = filename.size() - kPublicNativeLibrariesExtensionConfigSuffixLen; |
| 374 | const std::string company_name = filename.substr(start, end - start); |
| 375 | const std::string config_file_path = dirname + "/" + filename; |
| 376 | LOG_ALWAYS_FATAL_IF( |
| 377 | company_name.empty(), |
| 378 | "Error extracting company name from public native library list file path \"%s\"", |
| 379 | config_file_path.c_str()); |
| 380 | LOG_ALWAYS_FATAL_IF( |
| 381 | !ReadConfig( |
| 382 | config_file_path, &sonames, |
| 383 | [&company_name](const std::string& soname, std::string* error_msg) { |
| 384 | if (android::base::StartsWith(soname, "lib") && |
Elliott Hughes | 579e682 | 2017-12-20 09:41:00 -0800 | [diff] [blame] | 385 | android::base::EndsWith(soname, "." + company_name + ".so")) { |
Jiyong Park | d1006fe | 2017-11-08 18:44:09 +0900 | [diff] [blame] | 386 | return true; |
| 387 | } else { |
| 388 | *error_msg = "Library name \"" + soname + |
| 389 | "\" does not end with the company name: " + company_name + "."; |
| 390 | return false; |
| 391 | } |
| 392 | }, |
| 393 | &error_msg), |
| 394 | "Error reading public native library list from \"%s\": %s", config_file_path.c_str(), |
| 395 | error_msg.c_str()); |
| 396 | } |
| 397 | } |
| 398 | } |
Dimitry Ivanov | 7d02829 | 2016-05-05 17:30:24 -0700 | [diff] [blame] | 399 | |
Justin Yun | 4a1d110 | 2017-11-27 17:04:14 +0900 | [diff] [blame] | 400 | // Insert VNDK version to llndk and vndksp config file names. |
| 401 | insert_vndk_version_str(&llndk_native_libraries_system_config); |
| 402 | insert_vndk_version_str(&vndksp_native_libraries_system_config); |
| 403 | |
Dimitry Ivanov | 7d02829 | 2016-05-05 17:30:24 -0700 | [diff] [blame] | 404 | // For debuggable platform builds use ANDROID_ADDITIONAL_PUBLIC_LIBRARIES environment |
| 405 | // variable to add libraries to the list. This is intended for platform tests only. |
| 406 | if (is_debuggable()) { |
| 407 | const char* additional_libs = getenv("ANDROID_ADDITIONAL_PUBLIC_LIBRARIES"); |
| 408 | if (additional_libs != nullptr && additional_libs[0] != '\0') { |
| 409 | std::vector<std::string> additional_libs_vector = base::Split(additional_libs, ":"); |
| 410 | std::copy(additional_libs_vector.begin(), |
| 411 | additional_libs_vector.end(), |
| 412 | std::back_inserter(sonames)); |
| 413 | } |
| 414 | } |
| 415 | |
Dimitry Ivanov | b614045 | 2016-04-06 18:24:08 -0700 | [diff] [blame] | 416 | // android_init_namespaces() expects all the public libraries |
| 417 | // to be loaded so that they can be found by soname alone. |
| 418 | // |
| 419 | // TODO(dimitry): this is a bit misleading since we do not know |
| 420 | // if the vendor public library is going to be opened from /vendor/lib |
| 421 | // we might as well end up loading them from /system/lib |
| 422 | // For now we rely on CTS test to catch things like this but |
| 423 | // it should probably be addressed in the future. |
| 424 | for (const auto& soname : sonames) { |
Evan Ralston | 15a264e | 2017-02-03 17:09:46 -0800 | [diff] [blame] | 425 | LOG_ALWAYS_FATAL_IF(dlopen(soname.c_str(), RTLD_NOW | RTLD_NODELETE) == nullptr, |
| 426 | "Error preloading public library %s: %s", |
| 427 | soname.c_str(), dlerror()); |
Dimitry Ivanov | b614045 | 2016-04-06 18:24:08 -0700 | [diff] [blame] | 428 | } |
| 429 | |
Dimitry Ivanov | 882cad2 | 2017-05-01 15:12:49 -0700 | [diff] [blame] | 430 | system_public_libraries_ = base::Join(sonames, ':'); |
| 431 | |
| 432 | sonames.clear(); |
Jiyong Park | d1006fe | 2017-11-08 18:44:09 +0900 | [diff] [blame] | 433 | ReadConfig(llndk_native_libraries_system_config, &sonames, always_true); |
Jiyong Park | a07f305 | 2017-08-22 10:26:10 +0900 | [diff] [blame] | 434 | system_llndk_libraries_ = base::Join(sonames, ':'); |
| 435 | |
| 436 | sonames.clear(); |
Jiyong Park | d1006fe | 2017-11-08 18:44:09 +0900 | [diff] [blame] | 437 | ReadConfig(vndksp_native_libraries_system_config, &sonames, always_true); |
Jiyong Park | a07f305 | 2017-08-22 10:26:10 +0900 | [diff] [blame] | 438 | system_vndksp_libraries_ = base::Join(sonames, ':'); |
| 439 | |
| 440 | sonames.clear(); |
Dimitry Ivanov | 882cad2 | 2017-05-01 15:12:49 -0700 | [diff] [blame] | 441 | // This file is optional, quietly ignore if the file does not exist. |
Jiyong Park | d1006fe | 2017-11-08 18:44:09 +0900 | [diff] [blame] | 442 | ReadConfig(kPublicNativeLibrariesVendorConfig, &sonames, always_true, nullptr); |
Dimitry Ivanov | 882cad2 | 2017-05-01 15:12:49 -0700 | [diff] [blame] | 443 | |
| 444 | vendor_public_libraries_ = base::Join(sonames, ':'); |
Dimitry Ivanov | b614045 | 2016-04-06 18:24:08 -0700 | [diff] [blame] | 445 | } |
| 446 | |
Dimitry Ivanov | be4ca3a | 2016-05-02 10:43:16 -0700 | [diff] [blame] | 447 | void Reset() { |
| 448 | namespaces_.clear(); |
| 449 | } |
| 450 | |
Dimitry Ivanov | b614045 | 2016-04-06 18:24:08 -0700 | [diff] [blame] | 451 | private: |
Christopher Ferris | 39da84b | 2016-06-21 16:11:23 -0700 | [diff] [blame] | 452 | bool ReadConfig(const std::string& configFile, std::vector<std::string>* sonames, |
Jiyong Park | d1006fe | 2017-11-08 18:44:09 +0900 | [diff] [blame] | 453 | const std::function<bool(const std::string& /* soname */, |
| 454 | std::string* /* error_msg */)>& check_soname, |
Christopher Ferris | 39da84b | 2016-06-21 16:11:23 -0700 | [diff] [blame] | 455 | std::string* error_msg = nullptr) { |
Dimitry Ivanov | 4b0e963 | 2016-03-15 13:51:26 -0700 | [diff] [blame] | 456 | // Read list of public native libraries from the config file. |
| 457 | std::string file_content; |
Dimitry Ivanov | b614045 | 2016-04-06 18:24:08 -0700 | [diff] [blame] | 458 | if(!base::ReadFileToString(configFile, &file_content)) { |
Christopher Ferris | 39da84b | 2016-06-21 16:11:23 -0700 | [diff] [blame] | 459 | if (error_msg) *error_msg = strerror(errno); |
Dimitry Ivanov | b614045 | 2016-04-06 18:24:08 -0700 | [diff] [blame] | 460 | return false; |
| 461 | } |
Dimitry Ivanov | 4b0e963 | 2016-03-15 13:51:26 -0700 | [diff] [blame] | 462 | |
| 463 | std::vector<std::string> lines = base::Split(file_content, "\n"); |
| 464 | |
Christopher Ferris | 39da84b | 2016-06-21 16:11:23 -0700 | [diff] [blame] | 465 | for (auto& line : lines) { |
Dimitry Ivanov | 4b0e963 | 2016-03-15 13:51:26 -0700 | [diff] [blame] | 466 | auto trimmed_line = base::Trim(line); |
| 467 | if (trimmed_line[0] == '#' || trimmed_line.empty()) { |
| 468 | continue; |
| 469 | } |
Christopher Ferris | 39da84b | 2016-06-21 16:11:23 -0700 | [diff] [blame] | 470 | size_t space_pos = trimmed_line.rfind(' '); |
| 471 | if (space_pos != std::string::npos) { |
| 472 | std::string type = trimmed_line.substr(space_pos + 1); |
| 473 | if (type != "32" && type != "64") { |
| 474 | if (error_msg) *error_msg = "Malformed line: " + line; |
| 475 | return false; |
| 476 | } |
| 477 | #if defined(__LP64__) |
| 478 | // Skip 32 bit public library. |
| 479 | if (type == "32") { |
| 480 | continue; |
| 481 | } |
| 482 | #else |
| 483 | // Skip 64 bit public library. |
| 484 | if (type == "64") { |
| 485 | continue; |
| 486 | } |
| 487 | #endif |
| 488 | trimmed_line.resize(space_pos); |
| 489 | } |
Dimitry Ivanov | 4b0e963 | 2016-03-15 13:51:26 -0700 | [diff] [blame] | 490 | |
Jiyong Park | d1006fe | 2017-11-08 18:44:09 +0900 | [diff] [blame] | 491 | if (check_soname(trimmed_line, error_msg)) { |
| 492 | sonames->push_back(trimmed_line); |
| 493 | } else { |
| 494 | return false; |
| 495 | } |
Dimitry Ivanov | 4b0e963 | 2016-03-15 13:51:26 -0700 | [diff] [blame] | 496 | } |
| 497 | |
Dimitry Ivanov | b614045 | 2016-04-06 18:24:08 -0700 | [diff] [blame] | 498 | return true; |
Dimitry Ivanov | d68c8e9 | 2016-02-10 14:09:22 -0800 | [diff] [blame] | 499 | } |
Dimitry Ivanov | ac1b191 | 2015-12-01 13:56:44 -0800 | [diff] [blame] | 500 | |
Zhenhua WANG | f2804e5 | 2016-05-30 11:16:08 +0800 | [diff] [blame] | 501 | bool InitPublicNamespace(const char* library_path, std::string* error_msg) { |
| 502 | // Ask native bride if this apps library path should be handled by it |
| 503 | bool is_native_bridge = NativeBridgeIsPathSupported(library_path); |
| 504 | |
Dimitry Ivanov | 4b0e963 | 2016-03-15 13:51:26 -0700 | [diff] [blame] | 505 | // (http://b/25844435) - Some apps call dlopen from generated code (mono jited |
| 506 | // code is one example) unknown to linker in which case linker uses anonymous |
| 507 | // namespace. The second argument specifies the search path for the anonymous |
| 508 | // namespace which is the library_path of the classloader. |
Dimitry Ivanov | 882cad2 | 2017-05-01 15:12:49 -0700 | [diff] [blame] | 509 | initialized_ = android_init_anonymous_namespace(system_public_libraries_.c_str(), |
Dimitry Ivanov | 26e1a84 | 2017-02-03 14:11:27 -0800 | [diff] [blame] | 510 | is_native_bridge ? nullptr : library_path); |
Dimitry Ivanov | d836ab0 | 2016-11-02 18:03:10 -0700 | [diff] [blame] | 511 | if (!initialized_) { |
| 512 | *error_msg = dlerror(); |
| 513 | return false; |
| 514 | } |
| 515 | |
| 516 | // and now initialize native bridge namespaces if necessary. |
| 517 | if (NativeBridgeInitialized()) { |
Dimitry Ivanov | 882cad2 | 2017-05-01 15:12:49 -0700 | [diff] [blame] | 518 | initialized_ = NativeBridgeInitAnonymousNamespace(system_public_libraries_.c_str(), |
Zhenhua WANG | e8fb11d | 2017-02-27 10:14:45 +0800 | [diff] [blame] | 519 | is_native_bridge ? library_path : nullptr); |
Zhenhua WANG | f2804e5 | 2016-05-30 11:16:08 +0800 | [diff] [blame] | 520 | if (!initialized_) { |
| 521 | *error_msg = NativeBridgeGetError(); |
| 522 | } |
| 523 | } |
Dimitry Ivanov | ac1b191 | 2015-12-01 13:56:44 -0800 | [diff] [blame] | 524 | |
| 525 | return initialized_; |
| 526 | } |
| 527 | |
Dimitry Ivanov | 24db75c | 2016-05-12 15:34:41 -0700 | [diff] [blame] | 528 | jobject GetParentClassLoader(JNIEnv* env, jobject class_loader) { |
| 529 | jclass class_loader_class = env->FindClass("java/lang/ClassLoader"); |
| 530 | jmethodID get_parent = env->GetMethodID(class_loader_class, |
| 531 | "getParent", |
| 532 | "()Ljava/lang/ClassLoader;"); |
| 533 | |
| 534 | return env->CallObjectMethod(class_loader, get_parent); |
| 535 | } |
| 536 | |
Zhenhua WANG | f2804e5 | 2016-05-30 11:16:08 +0800 | [diff] [blame] | 537 | bool FindParentNamespaceByClassLoader(JNIEnv* env, |
| 538 | jobject class_loader, |
| 539 | NativeLoaderNamespace* ns) { |
Dimitry Ivanov | 24db75c | 2016-05-12 15:34:41 -0700 | [diff] [blame] | 540 | jobject parent_class_loader = GetParentClassLoader(env, class_loader); |
| 541 | |
| 542 | while (parent_class_loader != nullptr) { |
Zhenhua WANG | f2804e5 | 2016-05-30 11:16:08 +0800 | [diff] [blame] | 543 | if (FindNamespaceByClassLoader(env, parent_class_loader, ns)) { |
| 544 | return true; |
Dimitry Ivanov | 24db75c | 2016-05-12 15:34:41 -0700 | [diff] [blame] | 545 | } |
| 546 | |
| 547 | parent_class_loader = GetParentClassLoader(env, parent_class_loader); |
| 548 | } |
Zhenhua WANG | f2804e5 | 2016-05-30 11:16:08 +0800 | [diff] [blame] | 549 | |
| 550 | return false; |
Dimitry Ivanov | 24db75c | 2016-05-12 15:34:41 -0700 | [diff] [blame] | 551 | } |
| 552 | |
Dimitry Ivanov | ac1b191 | 2015-12-01 13:56:44 -0800 | [diff] [blame] | 553 | bool initialized_; |
Zhenhua WANG | f2804e5 | 2016-05-30 11:16:08 +0800 | [diff] [blame] | 554 | std::vector<std::pair<jweak, NativeLoaderNamespace>> namespaces_; |
Dimitry Ivanov | 882cad2 | 2017-05-01 15:12:49 -0700 | [diff] [blame] | 555 | std::string system_public_libraries_; |
| 556 | std::string vendor_public_libraries_; |
Jiyong Park | a07f305 | 2017-08-22 10:26:10 +0900 | [diff] [blame] | 557 | std::string system_llndk_libraries_; |
| 558 | std::string system_vndksp_libraries_; |
Dimitry Ivanov | ac1b191 | 2015-12-01 13:56:44 -0800 | [diff] [blame] | 559 | |
| 560 | DISALLOW_COPY_AND_ASSIGN(LibraryNamespaces); |
| 561 | }; |
| 562 | |
Dimitry Ivanov | 34d5a20 | 2016-02-29 13:21:43 -0800 | [diff] [blame] | 563 | static std::mutex g_namespaces_mutex; |
Dimitry Ivanov | ac1b191 | 2015-12-01 13:56:44 -0800 | [diff] [blame] | 564 | static LibraryNamespaces* g_namespaces = new LibraryNamespaces; |
| 565 | #endif |
| 566 | |
Dimitry Ivanov | 4b0e963 | 2016-03-15 13:51:26 -0700 | [diff] [blame] | 567 | void InitializeNativeLoader() { |
Dimitry Ivanov | 426799d | 2016-02-22 11:27:48 -0800 | [diff] [blame] | 568 | #if defined(__ANDROID__) |
Dimitry Ivanov | 34d5a20 | 2016-02-29 13:21:43 -0800 | [diff] [blame] | 569 | std::lock_guard<std::mutex> guard(g_namespaces_mutex); |
Dimitry Ivanov | 4b0e963 | 2016-03-15 13:51:26 -0700 | [diff] [blame] | 570 | g_namespaces->Initialize(); |
Dimitry Ivanov | 426799d | 2016-02-22 11:27:48 -0800 | [diff] [blame] | 571 | #endif |
| 572 | } |
| 573 | |
Dimitry Ivanov | be4ca3a | 2016-05-02 10:43:16 -0700 | [diff] [blame] | 574 | void ResetNativeLoader() { |
| 575 | #if defined(__ANDROID__) |
| 576 | std::lock_guard<std::mutex> guard(g_namespaces_mutex); |
| 577 | g_namespaces->Reset(); |
| 578 | #endif |
| 579 | } |
Dimitry Ivanov | ac1b191 | 2015-12-01 13:56:44 -0800 | [diff] [blame] | 580 | |
Dimitry Ivanov | d047c92 | 2016-02-23 14:23:51 -0800 | [diff] [blame] | 581 | jstring CreateClassLoaderNamespace(JNIEnv* env, |
| 582 | int32_t target_sdk_version, |
| 583 | jobject class_loader, |
| 584 | bool is_shared, |
Jiyong Park | a07f305 | 2017-08-22 10:26:10 +0900 | [diff] [blame] | 585 | bool is_for_vendor, |
Dimitry Ivanov | d047c92 | 2016-02-23 14:23:51 -0800 | [diff] [blame] | 586 | jstring library_path, |
| 587 | jstring permitted_path) { |
Dimitry Ivanov | ac1b191 | 2015-12-01 13:56:44 -0800 | [diff] [blame] | 588 | #if defined(__ANDROID__) |
Dimitry Ivanov | 34d5a20 | 2016-02-29 13:21:43 -0800 | [diff] [blame] | 589 | std::lock_guard<std::mutex> guard(g_namespaces_mutex); |
Zhenhua WANG | f2804e5 | 2016-05-30 11:16:08 +0800 | [diff] [blame] | 590 | |
| 591 | std::string error_msg; |
| 592 | NativeLoaderNamespace ns; |
| 593 | bool success = g_namespaces->Create(env, |
Dimitry Ivanov | 9e253ce | 2017-05-08 22:24:24 -0700 | [diff] [blame] | 594 | target_sdk_version, |
Zhenhua WANG | f2804e5 | 2016-05-30 11:16:08 +0800 | [diff] [blame] | 595 | class_loader, |
| 596 | is_shared, |
Jiyong Park | a07f305 | 2017-08-22 10:26:10 +0900 | [diff] [blame] | 597 | is_for_vendor, |
Zhenhua WANG | f2804e5 | 2016-05-30 11:16:08 +0800 | [diff] [blame] | 598 | library_path, |
| 599 | permitted_path, |
| 600 | &ns, |
| 601 | &error_msg); |
| 602 | if (!success) { |
| 603 | return env->NewStringUTF(error_msg.c_str()); |
Dimitry Ivanov | d047c92 | 2016-02-23 14:23:51 -0800 | [diff] [blame] | 604 | } |
| 605 | #else |
Jiyong Park | a07f305 | 2017-08-22 10:26:10 +0900 | [diff] [blame] | 606 | UNUSED(env, target_sdk_version, class_loader, is_shared, is_for_vendor, |
Dimitry Ivanov | d047c92 | 2016-02-23 14:23:51 -0800 | [diff] [blame] | 607 | library_path, permitted_path); |
| 608 | #endif |
| 609 | return nullptr; |
| 610 | } |
| 611 | |
| 612 | void* OpenNativeLibrary(JNIEnv* env, |
| 613 | int32_t target_sdk_version, |
| 614 | const char* path, |
| 615 | jobject class_loader, |
Zhenhua WANG | f2804e5 | 2016-05-30 11:16:08 +0800 | [diff] [blame] | 616 | jstring library_path, |
| 617 | bool* needs_native_bridge, |
| 618 | std::string* error_msg) { |
Dimitry Ivanov | d047c92 | 2016-02-23 14:23:51 -0800 | [diff] [blame] | 619 | #if defined(__ANDROID__) |
Dimitry Ivanov | 5539db0 | 2016-04-20 16:07:30 -0700 | [diff] [blame] | 620 | UNUSED(target_sdk_version); |
| 621 | if (class_loader == nullptr) { |
Zhenhua WANG | f2804e5 | 2016-05-30 11:16:08 +0800 | [diff] [blame] | 622 | *needs_native_bridge = false; |
Dimitry Ivanov | ac1b191 | 2015-12-01 13:56:44 -0800 | [diff] [blame] | 623 | return dlopen(path, RTLD_NOW); |
| 624 | } |
| 625 | |
Dimitry Ivanov | 34d5a20 | 2016-02-29 13:21:43 -0800 | [diff] [blame] | 626 | std::lock_guard<std::mutex> guard(g_namespaces_mutex); |
Zhenhua WANG | f2804e5 | 2016-05-30 11:16:08 +0800 | [diff] [blame] | 627 | NativeLoaderNamespace ns; |
Dimitry Ivanov | ac1b191 | 2015-12-01 13:56:44 -0800 | [diff] [blame] | 628 | |
Zhenhua WANG | f2804e5 | 2016-05-30 11:16:08 +0800 | [diff] [blame] | 629 | if (!g_namespaces->FindNamespaceByClassLoader(env, class_loader, &ns)) { |
Dimitry Ivanov | d047c92 | 2016-02-23 14:23:51 -0800 | [diff] [blame] | 630 | // This is the case where the classloader was not created by ApplicationLoaders |
| 631 | // In this case we create an isolated not-shared namespace for it. |
Dimitry Ivanov | 9e253ce | 2017-05-08 22:24:24 -0700 | [diff] [blame] | 632 | if (!g_namespaces->Create(env, |
| 633 | target_sdk_version, |
| 634 | class_loader, |
Jiyong Park | a07f305 | 2017-08-22 10:26:10 +0900 | [diff] [blame] | 635 | false /* is_shared */, |
| 636 | false /* is_for_vendor */, |
Dimitry Ivanov | 9e253ce | 2017-05-08 22:24:24 -0700 | [diff] [blame] | 637 | library_path, |
| 638 | nullptr, |
| 639 | &ns, |
| 640 | error_msg)) { |
Dimitry Ivanov | d047c92 | 2016-02-23 14:23:51 -0800 | [diff] [blame] | 641 | return nullptr; |
| 642 | } |
Dimitry Ivanov | ac1b191 | 2015-12-01 13:56:44 -0800 | [diff] [blame] | 643 | } |
| 644 | |
Zhenhua WANG | f2804e5 | 2016-05-30 11:16:08 +0800 | [diff] [blame] | 645 | if (ns.is_android_namespace()) { |
| 646 | android_dlextinfo extinfo; |
| 647 | extinfo.flags = ANDROID_DLEXT_USE_NAMESPACE; |
| 648 | extinfo.library_namespace = ns.get_android_ns(); |
Dimitry Ivanov | ac1b191 | 2015-12-01 13:56:44 -0800 | [diff] [blame] | 649 | |
Zhenhua WANG | f2804e5 | 2016-05-30 11:16:08 +0800 | [diff] [blame] | 650 | void* handle = android_dlopen_ext(path, RTLD_NOW, &extinfo); |
| 651 | if (handle == nullptr) { |
| 652 | *error_msg = dlerror(); |
| 653 | } |
| 654 | *needs_native_bridge = false; |
| 655 | return handle; |
| 656 | } else { |
| 657 | void* handle = NativeBridgeLoadLibraryExt(path, RTLD_NOW, ns.get_native_bridge_ns()); |
| 658 | if (handle == nullptr) { |
| 659 | *error_msg = NativeBridgeGetError(); |
| 660 | } |
| 661 | *needs_native_bridge = true; |
| 662 | return handle; |
| 663 | } |
Dimitry Ivanov | ac1b191 | 2015-12-01 13:56:44 -0800 | [diff] [blame] | 664 | #else |
Andreas Gampe | 5c7d582 | 2017-12-28 19:08:13 -0800 | [diff] [blame^] | 665 | UNUSED(env, target_sdk_version, class_loader); |
| 666 | |
| 667 | // Do some best effort to emulate library-path support. It will not |
| 668 | // work for dependencies. |
| 669 | // |
| 670 | // Note: null has a special meaning and must be preserved. |
| 671 | std::string c_library_path; // Empty string by default. |
| 672 | if (library_path != nullptr && path != nullptr && path[0] != '/') { |
| 673 | ScopedUtfChars library_path_utf_chars(env, library_path); |
| 674 | c_library_path = library_path_utf_chars.c_str(); |
| 675 | } |
| 676 | |
| 677 | std::vector<std::string> library_paths = base::Split(c_library_path, ":"); |
| 678 | |
| 679 | for (const std::string& lib_path : library_paths) { |
| 680 | *needs_native_bridge = false; |
| 681 | const char* path_arg; |
| 682 | std::string complete_path; |
| 683 | if (path == nullptr) { |
| 684 | // Preserve null. |
| 685 | path_arg = nullptr; |
Zhenhua WANG | f2804e5 | 2016-05-30 11:16:08 +0800 | [diff] [blame] | 686 | } else { |
Andreas Gampe | 5c7d582 | 2017-12-28 19:08:13 -0800 | [diff] [blame^] | 687 | complete_path = lib_path; |
| 688 | if (!complete_path.empty()) { |
| 689 | complete_path.append("/"); |
| 690 | } |
| 691 | complete_path.append(path); |
| 692 | path_arg = complete_path.c_str(); |
| 693 | } |
| 694 | void* handle = dlopen(path_arg, RTLD_NOW); |
| 695 | if (handle != nullptr) { |
| 696 | return handle; |
| 697 | } |
| 698 | if (NativeBridgeIsSupported(path_arg)) { |
| 699 | *needs_native_bridge = true; |
| 700 | handle = NativeBridgeLoadLibrary(path_arg, RTLD_NOW); |
| 701 | if (handle != nullptr) { |
| 702 | return handle; |
| 703 | } |
| 704 | *error_msg = NativeBridgeGetError(); |
| 705 | } else { |
Zhenhua WANG | f2804e5 | 2016-05-30 11:16:08 +0800 | [diff] [blame] | 706 | *error_msg = dlerror(); |
| 707 | } |
| 708 | } |
Andreas Gampe | 5c7d582 | 2017-12-28 19:08:13 -0800 | [diff] [blame^] | 709 | return nullptr; |
Dimitry Ivanov | ac1b191 | 2015-12-01 13:56:44 -0800 | [diff] [blame] | 710 | #endif |
| 711 | } |
| 712 | |
Zhenhua WANG | f2804e5 | 2016-05-30 11:16:08 +0800 | [diff] [blame] | 713 | bool CloseNativeLibrary(void* handle, const bool needs_native_bridge) { |
| 714 | return needs_native_bridge ? NativeBridgeUnloadLibrary(handle) : |
| 715 | dlclose(handle); |
Dimitry Ivanov | 09a516b | 2016-05-03 14:55:25 -0700 | [diff] [blame] | 716 | } |
| 717 | |
Dimitry Ivanov | f44ecde | 2016-02-22 13:48:22 -0800 | [diff] [blame] | 718 | #if defined(__ANDROID__) |
Dimitry Ivanov | 800083d | 2016-11-01 14:17:00 -0700 | [diff] [blame] | 719 | // native_bridge_namespaces are not supported for callers of this function. |
| 720 | // This function will return nullptr in the case when application is running |
| 721 | // on native bridge. |
Dimitry Ivanov | f44ecde | 2016-02-22 13:48:22 -0800 | [diff] [blame] | 722 | android_namespace_t* FindNamespaceByClassLoader(JNIEnv* env, jobject class_loader) { |
Dimitry Ivanov | 34d5a20 | 2016-02-29 13:21:43 -0800 | [diff] [blame] | 723 | std::lock_guard<std::mutex> guard(g_namespaces_mutex); |
Zhenhua WANG | f2804e5 | 2016-05-30 11:16:08 +0800 | [diff] [blame] | 724 | NativeLoaderNamespace ns; |
| 725 | if (g_namespaces->FindNamespaceByClassLoader(env, class_loader, &ns)) { |
Dimitry Ivanov | 800083d | 2016-11-01 14:17:00 -0700 | [diff] [blame] | 726 | return ns.is_android_namespace() ? ns.get_android_ns() : nullptr; |
Zhenhua WANG | f2804e5 | 2016-05-30 11:16:08 +0800 | [diff] [blame] | 727 | } |
| 728 | |
| 729 | return nullptr; |
Dimitry Ivanov | f44ecde | 2016-02-22 13:48:22 -0800 | [diff] [blame] | 730 | } |
| 731 | #endif |
| 732 | |
Dimitry Ivanov | ac1b191 | 2015-12-01 13:56:44 -0800 | [diff] [blame] | 733 | }; // android namespace |