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-rw-r--r--libs/binder/PermissionCache.cpp113
1 files changed, 0 insertions, 113 deletions
diff --git a/libs/binder/PermissionCache.cpp b/libs/binder/PermissionCache.cpp
deleted file mode 100644
index a503be8cd7db..000000000000
--- a/libs/binder/PermissionCache.cpp
+++ /dev/null
@@ -1,113 +0,0 @@
-/*
- * Copyright (C) 2009 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "PermissionCache"
-
-#include <stdint.h>
-#include <utils/Log.h>
-#include <binder/IPCThreadState.h>
-#include <binder/IServiceManager.h>
-#include <binder/PermissionCache.h>
-#include <utils/String8.h>
-
-namespace android {
-
-// ----------------------------------------------------------------------------
-
-ANDROID_SINGLETON_STATIC_INSTANCE(PermissionCache) ;
-
-// ----------------------------------------------------------------------------
-
-PermissionCache::PermissionCache() {
-}
-
-status_t PermissionCache::check(bool* granted,
- const String16& permission, uid_t uid) const {
- Mutex::Autolock _l(mLock);
- Entry e;
- e.name = permission;
- e.uid = uid;
- ssize_t index = mCache.indexOf(e);
- if (index >= 0) {
- *granted = mCache.itemAt(index).granted;
- return NO_ERROR;
- }
- return NAME_NOT_FOUND;
-}
-
-void PermissionCache::cache(const String16& permission,
- uid_t uid, bool granted) {
- Mutex::Autolock _l(mLock);
- Entry e;
- ssize_t index = mPermissionNamesPool.indexOf(permission);
- if (index > 0) {
- e.name = mPermissionNamesPool.itemAt(index);
- } else {
- mPermissionNamesPool.add(permission);
- e.name = permission;
- }
- // note, we don't need to store the pid, which is not actually used in
- // permission checks
- e.uid = uid;
- e.granted = granted;
- index = mCache.indexOf(e);
- if (index < 0) {
- mCache.add(e);
- }
-}
-
-void PermissionCache::purge() {
- Mutex::Autolock _l(mLock);
- mCache.clear();
-}
-
-bool PermissionCache::checkCallingPermission(const String16& permission) {
- return PermissionCache::checkCallingPermission(permission, NULL, NULL);
-}
-
-bool PermissionCache::checkCallingPermission(
- const String16& permission, int32_t* outPid, int32_t* outUid) {
- IPCThreadState* ipcState = IPCThreadState::self();
- pid_t pid = ipcState->getCallingPid();
- uid_t uid = ipcState->getCallingUid();
- if (outPid) *outPid = pid;
- if (outUid) *outUid = uid;
- return PermissionCache::checkPermission(permission, pid, uid);
-}
-
-bool PermissionCache::checkPermission(
- const String16& permission, pid_t pid, uid_t uid) {
- if ((uid == 0) || (pid == getpid())) {
- // root and ourselves is always okay
- return true;
- }
-
- PermissionCache& pc(PermissionCache::getInstance());
- bool granted = false;
- if (pc.check(&granted, permission, uid) != NO_ERROR) {
- nsecs_t t = -systemTime();
- granted = android::checkPermission(permission, pid, uid);
- t += systemTime();
- ALOGD("checking %s for uid=%d => %s (%d us)",
- String8(permission).string(), uid,
- granted?"granted":"denied", (int)ns2us(t));
- pc.cache(permission, uid, granted);
- }
- return granted;
-}
-
-// ---------------------------------------------------------------------------
-}; // namespace android