1 files changed, 120 insertions, 0 deletions
diff --git a/cmds/installd/InstalldNativeService.cpp b/cmds/installd/InstalldNativeService.cpp
new file mode 100644
index 0000000000..d68035fb5a
--- /dev/null
+++ b/cmds/installd/InstalldNativeService.cpp
@@ -0,0 +1,120 @@
+/**
+ * Copyright (c) 2016, 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 "installd"
+
+#include <vector>
+#include <fstream>
+
+#include <android-base/stringprintf.h>
+#include <binder/IPCThreadState.h>
+#include <binder/IServiceManager.h>
+#include <cutils/log.h>
+#include <cutils/properties.h>
+#include <private/android_filesystem_config.h>
+#include <utils/Errors.h>
+#include <utils/String16.h>
+
+#include "InstalldNativeService.h"
+
+#include "commands.h"
+
+using android::base::StringPrintf;
+
+namespace android {
+namespace installd {
+
+namespace {
+
+constexpr const char* kDump = "android.permission.DUMP";
+
+binder::Status checkPermission(const char* permission) {
+    pid_t pid;
+    uid_t uid;
+
+    if (checkCallingPermission(String16(permission), reinterpret_cast<int32_t*>(&pid),
+            reinterpret_cast<int32_t*>(&uid))) {
+        return binder::Status::ok();
+    } else {
+        auto err = StringPrintf("UID %d / PID %d lacks permission %s", uid, pid, permission);
+        return binder::Status::fromExceptionCode(binder::Status::EX_SECURITY, String8(err.c_str()));
+    }
+}
+
+binder::Status checkUid(uid_t expectedUid) {
+    uid_t uid = IPCThreadState::self()->getCallingUid();
+    if (uid == expectedUid) {
+        return binder::Status::ok();
+    } else {
+        auto err = StringPrintf("UID %d is not expected UID %d", uid, expectedUid);
+        return binder::Status::fromExceptionCode(binder::Status::EX_SECURITY, String8(err.c_str()));
+    }
+}
+
+#define ENFORCE_UID(uid) {                                  \
+    binder::Status status = checkUid((uid));                \
+    if (!status.isOk()) {                                   \
+        return status;                                      \
+    }                                                       \
+}
+
+}  // namespace
+
+status_t InstalldNativeService::start() {
+    IPCThreadState::self()->disableBackgroundScheduling(true);
+    status_t ret = BinderService<InstalldNativeService>::publish();
+    if (ret != android::OK) {
+        return ret;
+    }
+    sp<ProcessState> ps(ProcessState::self());
+    ps->startThreadPool();
+    ps->giveThreadPoolName();
+    return android::OK;
+}
+
+status_t InstalldNativeService::dump(int fd, const Vector<String16> & /* args */) {
+    const binder::Status dump_permission = checkPermission(kDump);
+    if (!dump_permission.isOk()) {
+        const String8 msg(dump_permission.toString8());
+        write(fd, msg.string(), msg.size());
+        return PERMISSION_DENIED;
+    }
+
+    std::string msg = "installd is happy\n";
+    write(fd, msg.c_str(), strlen(msg.c_str()));
+    return NO_ERROR;
+}
+
+static binder::Status translateStatus(int ret) {
+    if (ret != 0) {
+        auto err = StringPrintf("Failed with error %d", ret);
+        return binder::Status::fromServiceSpecificError(ret, String8(err.c_str()));
+    } else {
+        return binder::Status::ok();
+    }
+}
+
+binder::Status InstalldNativeService::createAppData(const std::unique_ptr<std::string>& uuid,
+        const std::string& pkgname, int32_t userid, int32_t flags, int32_t appid,
+        const std::string& seinfo, int32_t targetSdkVersion) {
+    ENFORCE_UID(AID_SYSTEM);
+    const char* _uuid = uuid ? (*uuid).c_str() : nullptr;
+    return translateStatus(create_app_data(_uuid, pkgname.c_str(), userid, flags, appid,
+            seinfo.c_str(), targetSdkVersion));
+}
+
+}  // namespace installd
+}  // namespace android