Initial Binder interface for installd. (5b62e60a) · Commits · e / os / android_frameworks_native-old

cmds/installd/Android.mk

+7 −1

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	@@ -91,13 +91,19 @@ include $(CLEAR_VARS)
	LOCAL_MODULE := installd		LOCAL_MODULE := installd
	LOCAL_MODULE_TAGS := optional		LOCAL_MODULE_TAGS := optional
	LOCAL_CFLAGS := $(common_cflags)		LOCAL_CFLAGS := $(common_cflags)
	LOCAL_SRC_FILES := installd.cpp $(common_src_files)		LOCAL_SRC_FILES := $(common_src_files) \
			installd.cpp \
			InstalldNativeService.cpp \
			binder/android/os/IInstalld.aidl \

	LOCAL_SHARED_LIBRARIES := \		LOCAL_SHARED_LIBRARIES := \
	libbase \		libbase \
			libbinder \
	libcutils \		libcutils \
	liblog \		liblog \
	liblogwrap \		liblogwrap \
	libselinux \		libselinux \
			libutils

	LOCAL_STATIC_LIBRARIES := libdiskusage		LOCAL_STATIC_LIBRARIES := libdiskusage
	LOCAL_ADDITIONAL_DEPENDENCIES += $(LOCAL_PATH)/Android.mk		LOCAL_ADDITIONAL_DEPENDENCIES += $(LOCAL_PATH)/Android.mk

cmds/installd/InstalldNativeService.cpp

0 → 100644

+120 −0

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			/**
			* 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

cmds/installd/InstalldNativeService.h

0 → 100644

+43 −0

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			/**
			* 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.
			*/

			#ifndef _INSTALLD_NATIVE_SERVICE_H_
			#define _INSTALLD_NATIVE_SERVICE_H_

			#include <vector>

			#include <binder/BinderService.h>

			#include "android/os/BnInstalld.h"

			namespace android {
			namespace installd {

			class InstalldNativeService : public BinderService<InstalldNativeService>, public os::BnInstalld {
			public:
			static status_t start();
			static char const* getServiceName() { return "installd"; }
			virtual status_t dump(int fd, const Vector<String16> &args) override;

			binder::Status 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);
			};

			} // namespace installd
			} // namespace android

			#endif // _INSTALLD_NATIVE_SERVICE_H_

cmds/installd/binder/android/os/IInstalld.aidl

0 → 100644

+22 −0

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			/*
			* 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.
			*/

			package android.os;

			interface IInstalld {
			void createAppData(in @nullable @utf8InCpp String uuid, in @utf8InCpp String pkgname,
			int userid, int flags, int appid, in @utf8InCpp String seinfo, int targetSdkVersion);
			}

cmds/installd/installd.cpp

+8 −1

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	@@ -30,6 +30,8 @@
	#include <cutils/sockets.h>		#include <cutils/sockets.h>
	#include <private/android_filesystem_config.h>		#include <private/android_filesystem_config.h>

			#include <InstalldNativeService.h>

	#include <commands.h>		#include <commands.h>
	#include <globals.h>		#include <globals.h>
	#include <installd_constants.h>		#include <installd_constants.h>
	@@ -705,7 +707,7 @@ static int installd_main(const int argc ATTRIBUTE_UNUSED, char *argv[]) {
	char buf[BUFFER_MAX];		char buf[BUFFER_MAX];
	struct sockaddr addr;		struct sockaddr addr;
	socklen_t alen;		socklen_t alen;
	int lsocket, s;		int lsocket, s, ret;
	int selinux_enabled = (is_selinux_enabled() > 0);		int selinux_enabled = (is_selinux_enabled() > 0);

	setenv("ANDROID_LOG_TAGS", "*:v", 1);		setenv("ANDROID_LOG_TAGS", "*:v", 1);
	@@ -732,6 +734,11 @@ static int installd_main(const int argc ATTRIBUTE_UNUSED, char *argv[]) {
	exit(1);		exit(1);
	}		}

			if ((ret = InstalldNativeService::start()) != android::OK) {
			ALOGE("Unable to start InstalldNativeService: %d", ret);
			exit(1);
			}

	lsocket = android_get_control_socket(SOCKET_PATH);		lsocket = android_get_control_socket(SOCKET_PATH);
	if (lsocket < 0) {		if (lsocket < 0) {
	ALOGE("Failed to get socket from environment: %s\n", strerror(errno));		ALOGE("Failed to get socket from environment: %s\n", strerror(errno));