init: add sandbox func

Signed-off-by: Nxionglei6 <xionglei6@huawei.com>

bundle.json

@@ -48,7 +48,8 @@
                 "//base/startup/init_lite/interfaces/innerkits/socket:libsocket",
                 "//base/startup/init_lite/services/loopevent:loopevent",
                 "//base/startup/init_lite/interfaces/innerkits/plugin:libplugin",
-                "//base/startup/init_lite/device_info:device_info_group"
+                "//base/startup/init_lite/device_info:device_info_group",
+                "//base/startup/init_lite/interfaces/innerkits/sandbox:libsandbox"
             ],
             "inner_kits": [
                 {

interfaces/innerkits/sandbox/BUILD.gn

+# Copyright (c) 2022 Huawei Device Co., Ltd.
+# 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.
+
+import("//base/startup/init_lite/begetd.gni")
+import("//build/ohos.gni")
+
+config("exported_header_files") {
+  visibility = [ ":*" ]
+  include_dirs = [ "include/" ]
+}
+
+ohos_shared_library("libsandbox") {
+  sources = [
+    "sandbox.c",
+    "sandbox_namespace.c",
+  ]
+  public_configs = [ ":exported_header_files" ]
+  include_dirs = [
+    "//third_party/bounds_checking_function/include",
+    "//base/startup/init_lite/services/include",
+    "//base/startup/init_lite/interfaces/innerkits/include",
+    "//third_party/cJSON",
+  ]
+  defines = [ "INIT_AGENT" ]
+  deps = [
+    "//base/startup/init_lite/services/utils:libinit_utils",
+    "//third_party/bounds_checking_function:libsec_shared",
+    "//third_party/cJSON:cjson_static",
+  ]
+
+  deps += [ "//base/startup/init_lite/services/log:init_log" ]
+
+  part_name = "init"
+  install_images = [ "system" ]
+}
+
+# For init only
+ohos_static_library("libsandbox_static") {
+  sources = [
+    "sandbox.c",
+    "sandbox_namespace.c",
+  ]
+  public_configs = [ ":exported_header_files" ]
+  include_dirs = [
+    "//third_party/bounds_checking_function/include",
+    "//base/startup/init_lite/interfaces/innerkits/include",
+    "//base/startup/init_lite/services/include",
+    "//third_party/cJSON",
+  ]
+  deps = [
+    "//base/startup/init_lite/services/utils:libinit_utils",
+    "//third_party/bounds_checking_function:libsec_static",
+    "//third_party/cJSON:cjson_static",
+  ]
+  deps += [ "//base/startup/init_lite/services/log:init_log" ]
+  part_name = "init"
+}

interfaces/innerkits/sandbox/chipset-sandbox.json

+{
+    "sandbox-root" : "/mnt/sandbox/chipset",
+    "mount-bind-paths" : [{
+            "src-path" : "/system/lib/vndk",
+            "sandbox-path" : "/system/lib/vndk",
+            "sandbox-flags" : [ "bind", "rec", "private" ]
+        }, {
+            "src-path" : "/system/lib/platform-vndk",
+            "sandbox-path" : "/system/lib/platform-vndk",
+            "sandbox-flags" : [ "bind", "rec", "private" ]
+        }, {
+            "src-path" : "/system/lib/ndk",
+            "sandbox-path" : "/system/lib/ndk",
+            "sandbox-flags" : [ "bind", "rec", "private" ]
+        }, {
+            "src-path" : "/vendor/lib",
+            "sandbox-path" : "/vendor/lib",
+            "sandbox-flags" : [ "bind", "rec", "private" ]
+        }, {
+            "src-path" : "/vendor/bin",
+            "sandbox-path" : "/vendor/bin",
+            "sandbox-flags" : [ "bind", "rec", "private" ]
+        }, {
+            "src-path" : "/vendor/etc",
+            "sandbox-path" : "/vendor/etc",
+            "sandbox-flags" : [ "bind", "rec", "private" ]
+        }, {
+            "src-path" : "/dev",
+            "sandbox-path" : "/dev",
+            "sandbox-flags" : [ "bind", "rec", "private" ]
+        }, {
+            "src-path" : "/proc",
+            "sandbox-path" : "/proc",
+            "sandbox-flags" : [ "bind", "rec", "private" ]
+        }, {
+            "src-path" : "/data",
+            "sandbox-path" : "/data",
+            "sandbox-flags" : [ "bind", "rec", "private" ]
+        }, {
+            "src-path" : "/sys",
+            "sandbox-path" : "/sys",
+            "sandbox-flags" : [ "bind", "rec", "private" ]
+        }
+    ],
+    "mount-bind-files" : [{
+    }],
+    "symbol-links" : [{
+            "target-name" : "/vendor/lib",
+            "link-name" : "/lib"
+        }, {
+            "target-name" : "/vendor/bin",
+            "link-name" : "/bin"
+        }, {
+            "target-name" : "/vendor/etc",
+            "link-name" : "/etc"
+        }
+    ]
+}
\ No newline at end of file

interfaces/innerkits/sandbox/include/sandbox.h

+/*
+* Copyright (c) 2022 Huawei Device Co., Ltd.
+* 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 BASE_STARTUP_INITLITE_SANDBOX_H
+#define BASE_STARTUP_INITLITE_SANDBOX_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+#include <stdbool.h>
+#include "init_utils.h"
+
+typedef struct {
+    char *source;  // source 目录，一般是全局的fs 目录
+    char *target;  // 沙盒化后的目录
+    unsigned long flags;
+} mount_t;
+
+typedef struct MountList {
+    mount_t *info;
+    struct MountList *next;
+} mountlist_t;
+
+typedef struct {
+    char *target;
+    char *linkName;
+} linker_t;
+
+typedef struct LinkList {
+    linker_t *info;
+    struct LinkList *next;
+} linklist_t;
+
+typedef struct {
+    mountlist_t *mounts;
+    linklist_t *links;
+    char *rootPath; // /mnt/sandbox/system|vendor|xxx
+    char name[MAX_BUFFER_LEN]; // name of sandbox. i.e system, chipset etc.
+    bool isCreated; // sandbox already created or not
+    int ns; // namespace
+} sandbox_t;
+
+bool InitSandboxWithName(const char *name);
+int PrepareSandbox(const char *name);
+int EnterSandbox(const char *name);
+void DestroySandbox(const char *name);
+int CheckSupportSandbox(void);
+void DumpSandboxByName(const char *name);
+#ifdef __cplusplus
+}
+#endif
+#endif

interfaces/innerkits/sandbox/include/sandbox_namespace.h

+/*
+* Copyright (c) 2022 Huawei Device Co., Ltd.
+* 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 SANDBOX_NAMESPACE_H
+#define SANDBOX_NAMESPACE_H
+
+#ifdef __cplusplus
+#if __cplusplus
+extern "C" {
+#endif
+#endif
+
+int GetNamespaceFd(const char *nsPath);
+int UnshareNamespace(int nsType);
+int SetNamespce(int nsFd, int nsType);
+void InitDefaultNamespace(void);
+int EnterDefaultNamespace(void);
+void CloseDefaultNamespace(void);
+
+#ifdef __cplusplus
+#if __cplusplus
+}
+#endif
+#endif
+#endif
\ No newline at end of file

interfaces/innerkits/sandbox/sandbox.c

+/*
+* Copyright (c) 2022 Huawei Device Co., Ltd.
+* 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.
+*/
+
+#include "sandbox.h"
+
+#include <limits.h>
+#include <string.h>
+#include <unistd.h>
+#include <sched.h>
+#include <sys/mount.h>
+#include <sys/syscall.h>
+#include <errno.h>
+#include "beget_ext.h"
+#include "init_utils.h"
+#include "cJSON.h"
+#include "sandbox_namespace.h"
+#include "securec.h"
+
+#define SANDBOX_ROOT_TAG "sandbox-root"
+#define SANDBOX_MOUNT_PATH_TAG "mount-bind-paths"
+#define SANDBOX_MOUNT_FILE_TAG "mount-bind-files"
+#define SANDBOX_SOURCE "src-path"
+#define SANDBOX_TARGET "sandbox-path"
+#define SANDBOX_FLAGS "sandbox-flags"
+#define SANDBOX_SYMLINK_TAG "symbol-links"
+#define SANDBOX_SYMLINK_TARGET "target-name"
+#define SANDBOX_SYMLINK_NAME "link-name"
+
+#define SANDBOX_SYSTEM_CONFIG_FILE "/system/etc/sandbox/system-sandbox.json"
+#define SANDBOX_CHIPSET_CONFIG_FILE "/system/etc/sandbox/chipset-sandbox.json"
+#define SANDBOX_PRIVAPP_CONFIG_FILE "/system/etc/sandbox/privapp-sandbox.json"
+#define SANDBOX_APP_CONFIG_FILE "/system/etc/sandbox/app-sandbox.json"
+
+#define SANDBOX_MOUNT_FLAGS_MS_BIND "bind"
+#define SANDBOX_MOUNT_FLAGS_MS_PRIVATE "private"
+#define SANDBOX_MOUNT_FLAGS_MS_REC "rec"
+#define SANDBOX_MOUNT_FLAGS_MS_MOVE "move"
+
+struct SandboxMountFlags {
+    const char *flag;
+    unsigned long value;
+};
+
+struct SandboxMountFlags g_flags[] = {
+    {
+        .flag = "bind",
+        .value = MS_BIND,
+    },
+    {
+        .flag = "private",
+        .value = MS_PRIVATE,
+    },
+    {
+        .flag = "rec",
+        .value = MS_REC,
+    },
+    {
+        .flag = "move",
+        .value = MS_MOVE,
+    }
+};
+
+
+static sandbox_t g_systemSandbox;
+static sandbox_t g_chipsetSandbox;
+static sandbox_t g_privAppSandbox;
+static sandbox_t g_appSandbox;
+
+struct SandboxMap {
+    const char *name;
+    sandbox_t *sandbox;
+    const char *configfile;
+};
+
+struct SandboxMap g_map[] = {
+    {
+        .name = "system",
+        .sandbox = &g_systemSandbox,
+        .configfile = SANDBOX_SYSTEM_CONFIG_FILE,
+    },
+    {
+        .name = "chipset",
+        .sandbox = &g_chipsetSandbox,
+        .configfile = SANDBOX_CHIPSET_CONFIG_FILE,
+    },
+    {
+        .name = "priv-app",
+        .sandbox = &g_privAppSandbox,
+        .configfile = SANDBOX_PRIVAPP_CONFIG_FILE,
+    },
+    {
+        .name = "app",
+        .sandbox = &g_appSandbox,
+        .configfile = SANDBOX_APP_CONFIG_FILE,
+    }
+};
+
+static unsigned long GetSandboxMountFlags(cJSON *item)
+{
+    BEGET_ERROR_CHECK(item != NULL, return 0, "Invalid parameter.");
+    char *str = cJSON_GetStringValue(item);
+    if (str == NULL) {
+        return 0;
+    }
+    for (size_t i = 0; i < ARRAY_LENGTH(g_flags); i++) {
+        if (strcmp(str, g_flags[i].flag) == 0) {
+            return g_flags[i].value;
+        }
+    }
+    return 0;
+}
+
+typedef int (*AddInfoToSandboxCallback)(sandbox_t *sandbox, cJSON *item);
+
+static int AddMountInfoToSandbox(sandbox_t *sandbox, cJSON *item)
+{
+    if (sandbox == NULL || item == NULL) {
+        return -1;
+    }
+    mountlist_t *tmpMount = (mountlist_t *)calloc(1, sizeof(mountlist_t));
+    BEGET_ERROR_CHECK(tmpMount != NULL, return -1, "Failed calloc err=%d", errno);
+    tmpMount->info = (mount_t *)calloc(1, sizeof(mount_t));
+    BEGET_ERROR_CHECK(tmpMount->info != NULL, return -1, "Failed calloc err=%d", errno);
+
+    char *srcPath = cJSON_GetStringValue(cJSON_GetObjectItem(item, SANDBOX_SOURCE));
+    if (srcPath != NULL) {
+        tmpMount->info->source = strdup(srcPath);
+    }
+    char *dstPath = cJSON_GetStringValue(cJSON_GetObjectItem(item, SANDBOX_TARGET));
+    if (dstPath != NULL) {
+        tmpMount->info->target = strdup(dstPath);
+    }
+    cJSON *obj = cJSON_GetObjectItem(item, SANDBOX_FLAGS);
+    BEGET_ERROR_CHECK(obj != NULL, return -1, "Failed get sandbox-flags.");
+    int ret = cJSON_IsArray(obj);
+    BEGET_ERROR_CHECK(ret, return -1, "Failed get sandbox-flags array. ");
+    int count = cJSON_GetArraySize(obj);
+    BEGET_ERROR_CHECK(count > 0, return -1, "Failed get sandbox-flags array size.");
+    for (int i = 0; i < count; i++) {
+        cJSON *item = cJSON_GetArrayItem(obj, i);
+        tmpMount->info->flags |= GetSandboxMountFlags(item);
+    }
+
+    if (sandbox->mounts == NULL) {
+        sandbox->mounts = tmpMount;
+        tmpMount->next = NULL;
+    } else {
+        tmpMount->next = sandbox->mounts->next;
+        sandbox->mounts->next = tmpMount;
+    }
+    return 0;
+}
+
+static int AddSymbolLinksToSandbox(sandbox_t *sandbox, cJSON *item)
+{
+    if (sandbox == NULL || item == NULL) {
+        return -1;
+    }
+    linklist_t *tmpLink = (linklist_t *)calloc(1, sizeof(linklist_t));
+    BEGET_ERROR_CHECK(tmpLink != NULL, return -1, "Failed calloc err=%d", errno);
+    tmpLink->info = (linker_t *)calloc(1, sizeof(linker_t));
+    BEGET_ERROR_CHECK(tmpLink->info != NULL, return -1, "Failed calloc err=%d", errno);
+
+    char *target = cJSON_GetStringValue(cJSON_GetObjectItem(item, SANDBOX_SYMLINK_TARGET));
+    if (target != NULL) {
+        tmpLink->info->target = strdup(target);
+    }
+    char *name = cJSON_GetStringValue(cJSON_GetObjectItem(item, SANDBOX_SYMLINK_NAME));
+    if (name != NULL) {
+        tmpLink->info->linkName = strdup(name);
+    }
+
+    if (sandbox->links == NULL) {
+        sandbox->links = tmpLink;
+        tmpLink->next = NULL;
+    } else {
+        tmpLink->next = sandbox->links->next;
+        sandbox->links->next = tmpLink;
+    }
+    return 0;
+}
+
+static int GetSandboxInfo(sandbox_t *sandbox, cJSON *root, const char *itemName)
+{
+    if (sandbox == NULL || root == NULL || itemName == NULL) {
+        BEGET_LOGE("Get sandbox mount info with invalid argument");
+        return -1;
+    }
+
+    cJSON *obj = cJSON_GetObjectItem(root, itemName);
+    if (obj == NULL) {
+        BEGET_LOGE("Cannot find item \' %s \' in sandbox config", itemName);
+        return -1;
+    }
+    if (!cJSON_IsArray(obj)) {
+        BEGET_LOGE("%s with invalid type, should be array", itemName);
+        return -1;
+    }
+
+    int counts = cJSON_GetArraySize(obj);
+    if (counts <= 0) {
+        BEGET_LOGE("%s with invalid content", itemName);
+        return -1;
+    }
+    AddInfoToSandboxCallback func;
+    if (strcmp(itemName, SANDBOX_MOUNT_PATH_TAG) == 0) {
+        func = AddMountInfoToSandbox;
+    } else if (strcmp(itemName, SANDBOX_SYMLINK_TAG) == 0) {
+        func = AddSymbolLinksToSandbox;
+    } else {
+        BEGET_LOGE("Failed %s item name is not support.", itemName);
+        return -1;
+    }
+    for (int i = 0; i < counts; i++) {
+        cJSON *item = cJSON_GetArrayItem(obj, i);
+        BEGET_ERROR_CHECK(item != NULL, return -1, "Failed get json array item %d", i);
+        if (func(sandbox, item) < 0) {
+            BEGET_LOGE("Failed add info to sandbox.");
+            return -1;
+        }
+    }
+    return 0;
+}
+
+static int ParseSandboxConfig(sandbox_t *sandbox, const char *sandboxConfig)
+{
+    if (sandbox == NULL || sandboxConfig == NULL) {
+        BEGET_LOGE("Parse sandbox config with invalid argument");
+        return -1;
+    }
+    char *contents = ReadFileToBuf(sandboxConfig);
+    if (contents == NULL) {
+        return -1;
+    }
+    cJSON *root = cJSON_Parse(contents);
+    if (root == NULL) {
+        BEGET_LOGE("Parse sandbox config \' %s \' failed", sandboxConfig);
+        return -1;
+    }
+    cJSON *sandboxRoot = cJSON_GetObjectItem(root, SANDBOX_ROOT_TAG);
+    if (sandboxRoot == NULL) {
+        BEGET_LOGE("Cannot find item \' %s \' in sandbox config", SANDBOX_ROOT_TAG);
+        cJSON_Delete(root);
+        return -1;
+    }
+    char *rootdir = cJSON_GetStringValue(sandboxRoot);
+    if (rootdir != NULL) {
+        sandbox->rootPath = strdup(rootdir);
+        if (sandbox->rootPath == NULL) {
+            BEGET_LOGE("Get sandbox root path out of memory");
+            cJSON_Delete(root);
+            return -1;
+        }
+    }
+    if (GetSandboxInfo(sandbox, root, SANDBOX_MOUNT_PATH_TAG) < 0) {
+        cJSON_Delete(root);
+        return -1;
+    }
+    if (GetSandboxInfo(sandbox, root, SANDBOX_SYMLINK_TAG) < 0) {
+        cJSON_Delete(root);
+        return -1;
+    }
+    cJSON_Delete(root);
+    return 0;
+}
+
+static struct SandboxMap *GetSandboxMapByName(const char *name)
+{
+    if (name == NULL) {
+        BEGET_LOGE("Failed get sandbox map name is NULL.");
+        return NULL;
+    }
+    int len = ARRAY_LENGTH(g_map);
+    for (int i = 0; i < len; i++) {
+        if (strcmp(g_map[i].name, name) == 0) {
+            return &g_map[i];
+        }
+    }
+    return NULL;
+}
+
+static void InitSandbox(sandbox_t *sandbox, const char *sandboxConfig, const char *name)
+{
+    if (sandbox == NULL || sandboxConfig == NULL || name == NULL) {
+        BEGET_LOGE("Init sandbox with invalid arguments");
+        return;
+    }
+    if (sandbox->isCreated) {
+        BEGET_LOGE("Sandbox %s has created.");
+        return;
+    }
+    if (UnshareNamespace(CLONE_NEWNS) < 0) {
+        return;
+    }
+    sandbox->ns = GetNamespaceFd("/proc/self/ns/mnt");
+    if (sandbox->ns < 0) {
+        BEGET_LOGE("Failed get sandbox namespace fd.");
+        return;
+    }
+
+    if (strcpy_s(sandbox->name, MAX_BUFFER_LEN - 1, name) != 0) {
+        BEGET_LOGE("Failed to copy sandbox name");
+        return;
+    }
+
+    // parse json config
+    if (ParseSandboxConfig(sandbox, sandboxConfig) < 0) {
+        return;
+    }
+}
+
+static int CheckAndMakeDir(const char *dir, mode_t mode)
+{
+    if (access(dir, F_OK) == 0) {
+        BEGET_LOGW("Mount point \' %s \' already exist", dir);
+        return 0;
+    } else {
+        if (errno == ENOENT) {
+            if (MakeDirRecursive(dir, mode) != 0) {
+                BEGET_LOGE("Failed MakeDirRecursive %s, err=%d", dir, errno);
+                return -1;
+            }
+        } else {
+            BEGET_LOGW("Failed to access mount point \' %s \', err = %d", dir, errno);
+            return -1;
+        }
+    }
+    return 0;
+}
+
+static int BindMount(const char *source, const char *target, unsigned long flags)
+{
+    if (source == NULL || target == NULL) {
+        BEGET_LOGE("Mount with invalid arguments");
+        errno = EINVAL;
+        return -1;
+    }
+    mode_t mode = S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH;
+    if (CheckAndMakeDir(target, mode) != 0) {
+        BEGET_LOGE("Failed make %s dir.", target);
+        return -1;
+    }
+
+    if ((flags & MS_BIND) == 0) {
+        BEGET_LOGW("Not configure bind, must configure bind flag.");
+        flags |= MS_BIND;
+    }
+
+    if ((flags & MS_REC) == 0) {
+        BEGET_LOGW("Not configure rec, must configure rec flag.");
+        flags |= MS_REC;
+    }
+
+    // do mount
+    if (mount(source, target, NULL, flags, NULL) != 0) {
+        BEGET_LOGE("Failed to bind mount \' %s \' to \' %s \', err = %d", source, target, errno);
+        return -1;
+    }
+
+    return 0;
+}
+
+static bool IsValidSandbox(sandbox_t *sandbox)
+{
+    if (sandbox == NULL) {
+        BEGET_LOGE("preparing sandbox with invalid argument");
+        return false;
+    }
+
+    if (sandbox->rootPath == NULL) {
+        return false;
+    }
+
+    if (sandbox->mounts == NULL) {
+        return false;
+    }
+    return true;
+}
+
+static int MountSandboxInfo(const mountlist_t *mounts, const char *rootPath)
+{
+    if (mounts == NULL) {
+        return -1;
+    }
+    if (mounts->info == NULL) {
+        return -1;
+    }
+    while (mounts != NULL) {
+        mount_t *mount = mounts->info;
+        char *source = mount->source;
+        char target[PATH_MAX] = {};
+        if (snprintf_s(target, PATH_MAX, PATH_MAX - 1, "%s%s", rootPath, mount->target) < 0) {
+            BEGET_LOGE("Failed snprintf_s err=%d", errno);
+            return -1;
+        }
+        int rc = BindMount(source, target, mount->flags);
+        BEGET_ERROR_CHECK(rc == 0, return -1, "Failed bind mount %s to %s.", source, target);
+        mounts = mounts->next;
+    }
+    return 0;
+}
+
+static int LinkSandboxInfo(const linklist_t *links, const char *rootPath)
+{
+    if (links == NULL) {
+        return -1;
+    }
+    if (links->info == NULL) {
+        return -1;
+    }
+    while (links != NULL) {
+        linker_t *link = links->info;
+        char linkName[PATH_MAX] = {0};
+        if (snprintf_s(linkName, PATH_MAX, PATH_MAX - 1, "%s%s", rootPath, link->linkName) < 0) {
+            BEGET_LOGE("Failed snprintf_s err=%d", errno);
+            return -1;
+        }
+        int rc = symlink(link->target, linkName);
+        if (rc != 0) {
+            if (errno == EEXIST) {
+                BEGET_LOGE("symbol link name \' %s \' already exist", linkName);
+            } else {
+                BEGET_LOGE("Failed to link \' %s \' to \' %s \', err = %d", link->target, linkName, errno);
+                return -1;
+            }
+        }
+        links = links->next;
+    }
+    return 0;
+}
+
+int PrepareSandbox(const char *name)
+{
+    BEGET_ERROR_CHECK(name != NULL, return -1, "Prepare sandbox name is NULL.");
+    BEGET_ERROR_CHECK(getuid() == 0, return -1, "Current process uid is not root, exit.");
+    struct SandboxMap *map = GetSandboxMapByName(name);
+    BEGET_ERROR_CHECK(map != NULL, return -1, "Failed get sandbox map by name %s.", name);
+    sandbox_t *sandbox = map->sandbox;
+    BEGET_CHECK(IsValidSandbox(sandbox) == true, return -1);
+    BEGET_INFO_CHECK(sandbox->isCreated == false, return 0, "Sandbox %s already created", sandbox->name);
+    BEGET_CHECK(sandbox->rootPath != NULL, return -1);
+    mode_t mode = S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH;
+    BEGET_ERROR_CHECK(CheckAndMakeDir(sandbox->rootPath, mode) == 0, return -1, "Failed root %s.", sandbox->rootPath);
+    int rc = mount(NULL, "/", NULL, MS_REC | MS_SLAVE, NULL);
+    BEGET_ERROR_CHECK(rc == 0, return -1, "Failed set mount slave err = %d", errno);
+    rc = BindMount(sandbox->rootPath, sandbox->rootPath, MS_BIND | MS_REC);
+    BEGET_ERROR_CHECK(rc == 0, return -1, "Failed to mount rootpath bind err = %d", errno);
+
+    // 1) walk through all mounts and do bind mount
+    rc = MountSandboxInfo(sandbox->mounts, sandbox->rootPath);
+    if (rc < 0) {
+        return -1;
+    }
+
+    // 2) walk through all links and do symbol link
+    rc = LinkSandboxInfo(sandbox->links, sandbox->rootPath);
+    if (rc < 0) {
+        return -1;
+    }
+
+    BEGET_ERROR_CHECK(chdir(sandbox->rootPath) == 0, return -1, "Change to %s, err = %d", sandbox->rootPath, errno);
+    BEGET_ERROR_CHECK(syscall(SYS_pivot_root, sandbox->rootPath, sandbox->rootPath) == 0, return -1,
+        "Failed system call pivot root, err=%d", errno);
+    BEGET_ERROR_CHECK(umount2(".", MNT_DETACH) == 0, return -1, "Failed umount2 MNT_DETACH, err=%d", errno);
+    sandbox->isCreated = true;
+    return 0;
+}
+
+static void FreeLink(linker_t *link)
+{
+    if (link == NULL) {
+        return;
+    }
+
+    if (link->linkName != NULL) {
+        free(link->linkName);
+        link->linkName = NULL;
+    }
+
+    if (link->target != NULL) {
+        free(link->target);
+        link->target = NULL;
+    }
+}
+
+static void FreeLinks(linklist_t *links)
+{
+    if (links == NULL) {
+        return;
+    }
+
+    linklist_t *tmp = links;
+    while (tmp != NULL) {
+        linklist_t *next = tmp ->next;
+        FreeLink(tmp->info);
+        free(tmp);
+        tmp = next;
+    }
+}
+
+static void FreeMount(mount_t *mount)
+{
+    if (mount == NULL) {
+        return;
+    }
+
+    if (mount->source != NULL) {
+        free(mount->source);
+        mount->source = NULL;
+    }
+
+    if (mount->target != NULL) {
+        free(mount->target);
+        mount->target = NULL;
+    }
+}
+
+static void FreeMounts(mountlist_t *mounts)
+{
+    if (mounts == NULL) {
+        return;
+    }
+
+    mountlist_t *tmp = mounts;
+    while (tmp != NULL) {
+        mountlist_t *next = tmp ->next;
+        FreeMount(tmp->info);
+        free(tmp);
+        tmp = next;
+    }
+}
+
+bool InitSandboxWithName(const char *name)
+{
+    bool isFound = false;
+    if (name == NULL) {
+        BEGET_LOGE("Init sandbox name is NULL.");
+        return isFound;
+    }
+    struct SandboxMap *map = GetSandboxMapByName(name);
+    if (map != NULL) {
+        InitSandbox(map->sandbox, map->configfile, name);
+        isFound = true;
+    }
+
+    if (!isFound) {
+        BEGET_LOGE("Cannot find sandbox with name %s.", name);
+    }
+    return isFound;
+}
+
+void DestroySandbox(const char *name)
+{
+    if (name == NULL) {
+        BEGET_LOGE("Destroy sandbox name is NULL.");
+        return;
+    }
+    struct SandboxMap *map = GetSandboxMapByName(name);
+    if (map == NULL) {
+        BEGET_LOGE("Failed get sandbox map by name %s.", name);
+        return;
+    }
+    sandbox_t *sandbox = map->sandbox;
+
+    if (sandbox == NULL) {
+        return;
+    }
+
+    if (sandbox->rootPath != NULL) {
+        free(sandbox->rootPath);
+        sandbox->rootPath = NULL;
+    }
+    FreeLinks(sandbox->links);
+    FreeMounts(sandbox->mounts);
+    if (sandbox->ns > 0) {
+        (void)close(sandbox->ns);
+    }
+    sandbox->isCreated = false;
+    return;
+}
+
+int EnterSandbox(const char *name)
+{
+    if (name == NULL) {
+        BEGET_LOGE("Destroy sandbox name is NULL.");
+        return -1;
+    }
+    struct SandboxMap *map = GetSandboxMapByName(name);
+    if (map == NULL) {
+        BEGET_LOGE("Failed get sandbox map by name %s.", name);
+        return -1;
+    }
+    sandbox_t *sandbox = map->sandbox;
+
+    if (sandbox == NULL) {
+        return -1;
+    }
+    if (sandbox->isCreated == false) {
+        BEGET_LOGE("Sandbox has not created.");
+        return -1;
+    }
+    if (sandbox->ns > 0) {
+        if (SetNamespce(sandbox->ns, CLONE_NEWNS) < 0) {
+            BEGET_LOGE("Failed set namespace CLONE_NEWNS, err=%d.", errno);
+            return -1;
+        }
+    } else {
+        BEGET_LOGE("System sandbox namespace fd is error.");
+        return -1;
+    }
+    return 0;
+}
+
+void DumpSandboxByName(const char *name)
+{
+    if (name == NULL) {
+        BEGET_LOGE("Init sandbox name is NULL.");
+        return;
+    }
+    struct SandboxMap *map = GetSandboxMapByName(name);
+    if (map == NULL) {
+        return;
+    }
+    BEGET_LOGI("Sandbox Map name: %s.", map->name);
+    BEGET_LOGI("Sandbox Map config file: %s.", map->configfile);
+    BEGET_LOGI("Sandbox name: %s.", map->sandbox->name);
+    BEGET_LOGI("Sandbox rootPath: %s.", map->sandbox->rootPath);
+    BEGET_LOGI("Sandbox mounts info:");
+    mountlist_t *mounts = map->sandbox->mounts;
+    while (mounts != NULL) {
+        mount_t *mount = mounts->info;
+        BEGET_LOGI("Sandbox mounts list source: %s", mount->source);
+        BEGET_LOGI("Sandbox mounts list target: %s", mount->target);
+        mounts = mounts->next;
+    }
+    BEGET_LOGI("Sandbox links info:");
+    linklist_t *links = map->sandbox->links;
+    while (links != NULL) {
+        linker_t *link = links->info;
+        BEGET_LOGI("Sandbox links list source: %s", link->target);
+        BEGET_LOGI("Sandbox links list target: %s", link->linkName);
+        links = links->next;
+    }
+    return;
+}

interfaces/innerkits/sandbox/sandbox_namespace.c

+/*
+* Copyright (c) 2022 Huawei Device Co., Ltd.
+* 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.
+*/
+
+#include <errno.h>
+#include <fcntl.h>
+#include <sched.h>
+#include <string.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include "beget_ext.h"
+
+static int g_defaultNs;
+
+int GetNamespaceFd(const char *nsPath)
+{
+    if (nsPath == NULL) {
+        return -1;
+    }
+    int ns = open(nsPath, O_RDONLY | O_CLOEXEC);
+    if (ns < 0) {
+        BEGET_LOGE("Failed unshare namespace, err=%d", errno);
+        return -1;
+    }
+    return ns;
+}
+
+int UnshareNamespace(int nsType)
+{
+    if (nsType == CLONE_NEWNS) {
+        if (unshare(nsType) < 0) {
+            BEGET_LOGE("Failed unshare namespace, err=%d", errno);
+            return -1;
+        } else {
+            return 0;
+        }
+    } else {
+        BEGET_LOGE("Failed unshare, type is not support");
+        return -1;
+    }
+}
+
+int SetNamespce(int nsFd, int nsType)
+{
+    if (nsFd < 0) {
+        BEGET_LOGE("Failed get namespace fd");
+        return -1;
+    }
+    if (nsType != CLONE_NEWNS) {
+        BEGET_LOGE("Failed get namespace type");
+        return -1;
+    }
+    return setns(nsFd, nsType);
+}
+
+void InitDefaultNamespace(void)
+{
+    if (g_defaultNs > 0) {
+        (void)close(g_defaultNs);
+    }
+    g_defaultNs = GetNamespaceFd("/proc/self/ns/mnt");
+    return;
+}
+
+int EnterDefaultNamespace(void)
+{
+    if (g_defaultNs < 0) {
+        return -1;
+    }
+    return SetNamespce(g_defaultNs, CLONE_NEWNS);
+}
+
+void CloseDefaultNamespace(void)
+{
+    if (g_defaultNs > 0) {
+        (void)close(g_defaultNs);
+        g_defaultNs = -1;
+    }
+    return;
+}

interfaces/innerkits/sandbox/system-sandbox.json

+{
+    "sandbox-root" : "/mnt/sandbox/system",
+    "mount-bind-paths" : [{
+            "src-path" : "/system/bin",
+            "sandbox-path" : "/system/bin",
+            "sandbox-flags" : [ "bind", "rec", "private" ]
+        }, {
+            "src-path" : "/system/etc",
+            "sandbox-path" : "/system/etc",
+            "sandbox-flags" : [ "bind", "rec", "private" ]
+        }, {
+            "src-path" : "/system/lib",
+            "sandbox-path" : "/system/lib",
+            "sandbox-flags" : [ "bind", "rec", "private" ]
+        }, {
+            "src-path" : "/system/profile",
+            "sandbox-path" : "/system/profile",
+            "sandbox-flags" : [ "bind", "rec", "private" ]
+        }, {
+            "src-path" : "/system/app",
+            "sandbox-path" : "/system/app",
+            "sandbox-flags" : [ "bind", "rec", "private" ]
+        }, {
+            "src-path" : "/system/fonts",
+            "sandbox-path" : "/system/fonts",
+            "sandbox-flags" : [ "bind", "rec", "private" ]
+        }, {
+            "src-path" : "/vendor",
+            "sandbox-path" : "/vendor",
+            "sandbox-flags" : [ "bind", "rec", "private" ]
+        }, {
+            "src-path" : "/dev",
+            "sandbox-path" : "/dev",
+            "sandbox-flags" : [ "bind", "rec", "private" ]
+        }, {
+            "src-path" : "/proc",
+            "sandbox-path" : "/proc",
+            "sandbox-flags" : [ "bind", "rec", "private" ]
+        }, {
+            "src-path" : "/data",
+            "sandbox-path" : "/data",
+            "sandbox-flags" : [ "bind", "rec", "private" ]
+        }, {
+            "src-path" : "/sys",
+            "sandbox-path" : "/sys",
+            "sandbox-flags" : [ "bind", "rec", "private" ]
+        }, {
+            "src-path" : "/config",
+            "sandbox-path" : "/config",
+            "sandbox-flags" : [ "bind", "rec", "private" ]
+        }, {
+            "src-path" : "/mnt",
+            "sandbox-path" : "/mnt",
+            "sandbox-flags" : [ "bind", "rec", "private" ]
+        }, {
+            "src-path" : "/storage",
+            "sandbox-path" : "/storage",
+            "sandbox-flags" : [ "bind", "rec", "private" ]
+        }
+    ],
+    "mount-bind-files" : [{
+    }],
+    "symbol-links" : [{
+            "target-name" : "/system/lib",
+            "link-name" : "/lib"
+        }, {
+            "target-name" : "/system/bin",
+            "link-name" : "/bin"
+        }, {
+            "target-name" : "/system/etc",
+            "link-name" : "/etc"
+        }
+    ]
+}
\ No newline at end of file

interfaces/innerkits/socket/BUILD.gn

@@ -49,5 +49,6 @@ if (defined(ohos_lite)) {
       "system",
       "updater",
     ]
+    relative_install_dir = "platform-vndk"
   }
 }

services/BUILD.gn

@@ -125,6 +125,7 @@ if (defined(ohos_lite)) {
     include_dirs = [
       "//base/security/access_token/interfaces/innerkits/token_setproc/include",
       "//base/security/access_token/interfaces/innerkits/nativetoken/include",
+      "//base/startup/init_lite/interfaces/innerkits/sandbox/include",
       "//base/startup/init_lite/services/include/param",
       "//base/startup/init_lite/services/include",
       "//base/startup/init_lite/services/init/include",
@@ -141,6 +142,7 @@ if (defined(ohos_lite)) {
       "//base/security/access_token/interfaces/innerkits/nativetoken:libnativetoken",
       "//base/security/access_token/interfaces/innerkits/token_setproc:libtoken_setproc",
       "//base/startup/init_lite/interfaces/innerkits:libfsmanager_static",
+      "//base/startup/init_lite/interfaces/innerkits/sandbox:libsandbox_static",
       "//base/startup/init_lite/services/log:init_log",
       "//base/startup/init_lite/services/loopevent:loopevent",
       "//base/startup/init_lite/services/param:param_service",
@@ -301,10 +303,23 @@ if (defined(ohos_lite)) {
     part_name = "init"
   }
 
+  ohos_prebuilt_etc("system-sandbox.json") {
+    source = "//base/startup/init_lite/interfaces/innerkits/sandbox/system-sandbox.json"
+    part_name = "init"
+    module_install_dir = "etc/sandbox"
+  }
+
+  ohos_prebuilt_etc("chipset-sandbox.json") {
+    source = "//base/startup/init_lite/interfaces/innerkits/sandbox/chipset-sandbox.json"
+    part_name = "init"
+    module_install_dir = "etc/sandbox"
+  }
+
   group("init_etc") {
     deps = [
       ":boot.group",
       ":charing.group",
+      ":chipset-sandbox.json",
       ":group",
       ":init.cfg",
       ":init.usb.cfg",
@@ -315,6 +330,7 @@ if (defined(ohos_lite)) {
       ":plugin_modules",
       ":syscap.json",
       ":syscap.para",
+      ":system-sandbox.json",
       ":systemcapability.json",
     ]
   }

services/begetctl/BUILD.gn

@@ -20,6 +20,7 @@ ohos_executable("begetctl") {
     "main.c",
     "misc_daemon.cpp",
     "param_cmd.c",
+    "sandbox.cpp",
     "service_control.c",
     "shell/shell_bas.c",
   ]
@@ -41,12 +42,16 @@ ohos_executable("begetctl") {
     "//base/startup/init_lite/services/param/include",
     "//base/startup/init_lite/services/loopevent/include",
     "//third_party/bounds_checking_function/include",
+    "//base/startup/init_lite/interfaces/innerkits/sandbox/include",
+    "//utils/native/base/include",
   ]
   deps = [
     "//base/startup/init_lite/interfaces/innerkits:libbegetutil",
+    "//base/startup/init_lite/interfaces/innerkits/sandbox:libsandbox_static",
     "//base/startup/init_lite/services/log:agent_log",
     "//base/startup/init_lite/services/param:param_client",
     "//third_party/bounds_checking_function:libsec_static",
+    "//utils/native/base:utils",
   ]
 
   if (param_test) {
@@ -72,6 +77,7 @@ ohos_executable("begetctl") {
     "stop_service",
     "service",
     "param",
+    "sandbox",
   ]
 
   install_images = [ "system" ]

services/begetctl/sandbox.cpp

+/*
+ * Copyright (c) 2022 Huawei Device Co., Ltd.
+ * 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.
+ */
+
+#include <cerrno>
+#include <cstdlib>
+#include <cstdio>
+#include <cstdint>
+#include <getopt.h>
+#include <iostream>
+#include <map>
+#include <string>
+#include <unistd.h>
+#include <vector>
+
+#include "begetctl.h"
+#include "init_utils.h"
+#include "sandbox.h"
+#include "sandbox_namespace.h"
+#include "string_ex.h"
+
+using namespace OHOS;
+struct option g_options[] = {
+    { "config_file", required_argument, nullptr, 'c' },
+    { "sandbox_name", required_argument, nullptr, 's' },
+    { "process_name", required_argument, nullptr, 'p' },
+    { "help", no_argument, nullptr, 'h' },
+    { nullptr, 0, nullptr, 0 },
+};
+
+static void Usage()
+{
+    std::cout << "sandbox -c, --config_file=sandbox config file \"config file with json format\"" << std::endl;
+    std::cout << "sandbox -s, --sandbox_name=sandbox name \"Sandbox name, system, chipset etc.\"" << std::endl;
+    std::cout << "sandbox -p, --process=process name \"sh, hdcd, hdf_devhost, etc.\"" << std::endl;
+    std::cout << "sandbox -h, --help \"Show help\"" << std::endl;
+    exit(0);
+}
+
+static std::string SearchConfigBySandboxName(const std::string &sandboxName)
+{
+    std::map<std::string, std::string> sandboxConfigMap = {
+        {"system", "/system/etc/system-sandbox.json"},
+        {"chipset", "/system/etc/chipset-sandbox.json"},
+        {"priv-app", "/system/etc/priv-app-sandbox.json"},
+        {"app", "/system/etc/app-sandbox.json"},
+    };
+    auto it = sandboxConfigMap.find(sandboxName);
+    if (it == sandboxConfigMap.end()) {
+        return "";
+    } else {
+        return it->second;
+    }
+}
+
+static void RunSandbox(const std::string &configFile, const std::string &name)
+{
+    std::string config {};
+    std::string sandboxName {};
+    if (!name.empty()) {
+        config = SearchConfigBySandboxName(name);
+        sandboxName = name;
+    } else {
+        // Without sandbox name, give one.
+        sandboxName = "sandbox_test";
+    }
+
+    if (config.empty()) {
+        std::cout << "No sandbox name " << sandboxName << "or config file specified!" << std::endl;
+        return;
+    }
+    InitDefaultNamespace();
+    if (!InitSandboxWithName(sandboxName.c_str())) {
+        std::cout << "Init sandbox failed." << std::endl;
+        return;
+    }
+
+    DumpSandboxByName(sandboxName.c_str());
+    if (PrepareSandbox(sandboxName.c_str()) != 0) {
+        std::cout << "Prepare sandbox failed." << std::endl;
+        return;
+    }
+    EnterDefaultNamespace();
+    CloseDefaultNamespace();
+    EnterSandbox(sandboxName.c_str());
+    return;
+}
+
+static void EnterShell()
+{
+    char *argv[] = { (char *)"sh", NULL };
+    char *envp[] = { nullptr };
+    if (execve("/system/bin/sh", argv, envp) != 0) {
+        std::cout << "execve sh failed! err = "<< errno << std::endl;
+    }
+    return;
+}
+
+static const int MAX_PROCESS_ARGC = 8;
+static void EnterExec(const std::string &processName)
+{
+    if (processName.empty()) {
+        std::cout << "process name is nullptr." << std::endl;
+        return;
+    }
+    std::string tmpName = processName;
+    std::vector<std::string> vtr;
+    const std::string sep = " ";
+    OHOS::SplitStr(tmpName, sep, vtr, true, false);
+
+    if ((vtr.size() > MAX_PROCESS_ARGC) || (vtr.size() <= 0)) {
+        std::cout << "Service parameters is error." << std::endl;
+        return;
+    }
+    char *argv[MAX_PROCESS_ARGC] = {};
+    std::vector<std::string>::iterator it;
+    int i = 0;
+    for (it = vtr.begin(); it != vtr.end(); it++) {
+        argv[i] = (char *)(*it).c_str();
+        std::cout << std::string(argv[i]) << std::endl;
+        i++;
+    }
+    argv[i] = NULL;
+    char *envp[] = { NULL };
+    if (execve(argv[0], argv, envp) != 0) {
+        std::cout << "execve:" << argv[0] << "failed! err = "<< errno << std::endl;
+    }
+    return;
+}
+
+static void RunCmd(const std::string &configFile, const std::string &sandboxName, const std::string &processName)
+{
+    if (!sandboxName.empty() && processName.empty()) {
+        RunSandbox(configFile, sandboxName);
+        EnterShell();
+    } else if (!sandboxName.empty() && !processName.empty()) {
+        RunSandbox(configFile, sandboxName);
+        EnterExec(processName);
+    } else if (sandboxName.empty() && !processName.empty()) {
+        std::cout << "process name:" << processName << std::endl;
+        RunSandbox(configFile, std::string("system"));
+        EnterExec(processName);
+    } else {
+        Usage();
+    }
+}
+
+static int main_cmd(BShellHandle shell, int argc, char **argv)
+{
+    int rc = -1;
+    int optIndex = -1;
+    std::string configFile {};
+    std::string sandboxName {};
+    std::string processName {};
+    while ((rc = getopt_long(argc, argv, "c:s:p:h",  g_options, &optIndex)) != -1) {
+        switch (rc) {
+            case 0: {
+                std::string optionName = g_options[optIndex].name;
+                if (optionName == "config_file") {
+                    configFile = optarg;
+                } else if (optionName == "help") {
+                    Usage();
+                } else if (optionName == "sandbox_name") {
+                    sandboxName = optarg;
+                } else if (optionName == "process_name") {
+                    processName = optarg;
+                }
+                break;
+            }
+            case 'c':
+                configFile = optarg;
+                break;
+            case 'h':
+                Usage();
+                break;
+            case 's':
+                sandboxName = optarg;
+                break;
+            case 'p':
+                std::cout << "1111 process name:" << optarg << std::endl;
+                processName = optarg;
+                break;
+            case '?':
+                std::cout << "Invalid arugment\n";
+                break;
+            default:
+                std::cout << "Invalid arugment\n";
+                break;
+        }
+    }
+    RunCmd(configFile, sandboxName, processName);
+    return 0;
+}
+
+MODULE_CONSTRUCTOR(void)
+{
+    CmdInfo infos[] = {
+        {
+            (char *)"sandbox", main_cmd, (char *)"sandbox debug tool",
+            (char *)"sandbox -s, --sandbox=system, chipset, priv-app, or app",
+            NULL
+        }
+    };
+    for (size_t i = 0; i < ARRAY_LENGTH(infos); i++) {
+        BShellEnvRegitsterCmd(GetShellHandle(), &infos[i]);
+    }
+}

services/etc/init.cfg

@@ -15,8 +15,6 @@
                 "mkdir /dev/memcg/system 0550 system system",
                 "start ueventd",
                 "start watchdog_service",
-                "mkdir /data",
-                "mount_fstab /vendor/etc/fstab.${ohos.boot.hardware}",
                 "chown system system /data",
                 "chmod 0771 /data",
                 "mkdir /data/service 0711 root root",
@@ -64,11 +62,9 @@
                 "write /dev/blkio/background/blkio.weight 500",
                 "write /dev/blkio/blkio.group_idle 0",
                 "write /dev/blkio/background/blkio.group_idle 0",
-                "mount configfs none /config nodev noexec nosuid",
                 "chmod 0770 /config/sdcardfs",
                 "chown system package_info /config/sdcardfs",
                 "symlink /storage/self/primary /sdcard",
-                "mkdir /mnt/sandbox 0711 root root",
                 "write /proc/sys/kernel/panic_on_oops 1",
                 "write /proc/sys/kernel/hung_task_timeout_secs 0",
                 "write /proc/cpu/alignment 4",
@@ -221,7 +217,6 @@
                 "mkdir /data/service/el2/0/hmdfs 0711 system system",
                 "mkdir /data/chipset/el1/0 0711 root root",
                 "mkdir /data/chipset/el2/0 0711 root root",
-                "mount tmpfs tmpfs /storage nodev noexec nosuid mode=0755,uid=0,gid=0",
                 "mkdir /storage/media 0711 root root",
                 "mkdir /data/bootchart 0755 shell shell",
                 "mkdir /data/app-staging 0750 system system",

services/etc/init.without_two_stages.cfg

@@ -16,9 +16,6 @@
                 "mkdir /dev/memcg/system 0550 system system",
                 "start ueventd",
                 "start watchdog_service",
-                "mkdir /data",
-                "mount ext4 /dev/block/platform/soc/10100000.himci.eMMC/by-name/vendor /vendor wait rdonly barrier=1",
-                "mount ext4 /dev/block/platform/soc/10100000.himci.eMMC/by-name/userdata /data wait nosuid nodev noatime barrier=1,data=ordered,noauto_da_alloc",
                 "chown system system /data",
                 "chmod 0771 /data",
                 "mkdir /data/service 0711 root root",
@@ -64,11 +61,9 @@
                 "write /dev/blkio/background/blkio.weight 500",
                 "write /dev/blkio/blkio.group_idle 0",
                 "write /dev/blkio/background/blkio.group_idle 0",
-                "mount configfs none /config nodev noexec nosuid",
                 "chmod 0770 /config/sdcardfs",
                 "chown system package_info /config/sdcardfs",
                 "symlink /storage/self/primary /sdcard",
-                "mkdir /mnt/sandbox 0711 root root",
                 "write /proc/sys/kernel/panic_on_oops 1",
                 "write /proc/sys/kernel/hung_task_timeout_secs 0",
                 "write /proc/cpu/alignment 4",

services/etc/param/ohos.para

@@ -37,3 +37,4 @@ const.build.characteristics=default
 const.product.model=ohos
 const.product.name="OpenHarmony 2.0 Canary"
 persist.sys.usb.config=hdc
+const.sandbox=enable

services/init/include/init.h

@@ -43,6 +43,7 @@ void SystemExecuteRcs(void);
 
 void ReadConfig(void);
 void SignalInit(void);
+int SetServiceEnterSandbox(const char *path);
 
 #ifdef __cplusplus
 #if __cplusplus

services/init/init_common_service.c

@@ -280,8 +280,10 @@ int ServiceStart(Service *service)
     }
     int pid = fork();
     if (pid == 0) {
-        INIT_CHECK_ONLY_ELOG(SetAccessToken(service) == SERVICE_SUCCESS,
-            "set access token failed for service %s", service->name);
+        INIT_CHECK_ONLY_ELOG(SetServiceEnterSandbox(service->pathArgs.argv[0]) == SERVICE_SUCCESS,
+            "Failed %s sandbox.", service->name);
+
+        INIT_CHECK_ONLY_ELOG(SetAccessToken(service) == SERVICE_SUCCESS, "access token failed %s", service->name);
         // deal start job
         if (service->serviceJobs.jobsName[JOB_ON_START] != NULL) {
             DoJobNow(service->serviceJobs.jobsName[JOB_ON_START]);
@@ -290,8 +292,7 @@ int ServiceStart(Service *service)
         ClearEnvironment();
 
         if (!IsOnDemandService(service)) {
-            int ret = CreateServiceSocket(service);
-            INIT_ERROR_CHECK(ret >= 0, return SERVICE_FAILURE,
+            INIT_ERROR_CHECK(CreateServiceSocket(service) >= 0, return SERVICE_FAILURE,
                 "service %s exit! create socket failed!", service->name);
         }
 

services/init/lite/init.c

@@ -82,3 +82,9 @@ void SystemRun(void)
 {
     LE_RunLoop(LE_GetDefaultLoop());
 }
+
+int SetServiceEnterSandbox(const char *path)
+{
+    UNUSED(path);
+    return -1;
+}

services/init/standard/device.c

@@ -47,6 +47,12 @@ void MountBasicFs(void)
     if (mount("tmpfs", "/mnt", "tmpfs", MS_NOSUID, "mode=0755") != 0) {
         INIT_LOGE("Mount tmpfs failed. %s", strerror(errno));
     }
+    if (mount("tmpfs", "/storage", "tmpfs", MS_NOEXEC | MS_NODEV| MS_NOSUID, "mode=0755") != 0) {
+        INIT_LOGE("Mount storage failed. %s", strerror(errno));
+    }
+    if (mount("none", "/config", "configfs", MS_NOEXEC | MS_NODEV| MS_NOSUID, "mode=0755") != 0) {
+        INIT_LOGE("Mount  configfs failed. %s", strerror(errno));
+    }
     if (mkdir("/dev/pts", S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH) != 0) {
         INIT_LOGE("mkdir /dev/pts failed. %s", strerror(errno));
     }

services/init/standard/init.c

@@ -38,11 +38,15 @@
 #include "ueventd.h"
 #include "ueventd_socket.h"
 #include "fd_holder_internal.h"
+#include "sandbox.h"
+#include "sandbox_namespace.h"
 #ifdef WITH_SELINUX
 #include <policycoreutils.h>
 #include <selinux/selinux.h>
 #endif // WITH_SELINUX
 
+static bool g_enableSandbox;
+
 static int FdHolderSockInit(void)
 {
     int sock = -1;
@@ -88,6 +92,28 @@ static int FdHolderSockInit(void)
     return sock;
 }
 
+static void RegisterSandbox(const char *sandbox)
+{
+    if (sandbox == NULL) {
+        INIT_LOGE("Invaild parameters.");
+        return;
+    }
+    InitDefaultNamespace();
+    if (!InitSandboxWithName(sandbox)) {
+        INIT_LOGE("Failed init sandbox with name %s.", sandbox);
+    }
+
+    // DumpSandboxByName(sandbox);
+    if (PrepareSandbox(sandbox) != 0) {
+        INIT_LOGE("Failed prepare sandbox %s.", sandbox);
+        DestroySandbox(sandbox);
+    }
+    if (EnterDefaultNamespace() < 0) {
+        INIT_LOGE("Fail set default namespace.");
+    }
+    CloseDefaultNamespace();
+}
+
 void SystemInit(void)
 {
     SignalInit();
@@ -98,6 +124,8 @@ void SystemInit(void)
     if (sock >= 0) {
         RegisterFdHoldWatcher(sock);
     }
+    RegisterSandbox("system");
+    RegisterSandbox("chipset");
 }
 
 static void EnableDevKmsg(void)
@@ -267,6 +295,24 @@ static int SystemDump(int id, const char *name, int argc, const char **argv)
 }
 #endif
 
+static void IsEnableSandbox(void)
+{
+    const char *name = "const.sandbox";
+    char value[MAX_BUFFER_LEN] = {0};
+    unsigned int len = MAX_BUFFER_LEN;
+    if (SystemReadParam(name, value, &len) != 0) {
+        INIT_LOGE("Failed read param.");
+        g_enableSandbox = false;
+    }
+    if (strcmp(value, "enable") == 0) {
+        INIT_LOGI("Support sandbox.");
+        g_enableSandbox = true;
+    } else {
+        INIT_LOGI("Not support sandbox.");
+        g_enableSandbox = false;
+    }
+}
+
 void SystemConfig(void)
 {
     InitServiceSpace();
@@ -293,7 +339,7 @@ void SystemConfig(void)
     AddCmdExecutor("display", SystemDump);
     (void)AddCompleteJob("param:ohos.servicectrl.display", "ohos.servicectrl.display=*", "display system");
 #endif
-
+    IsEnableSandbox();
     // execute init
     PostTrigger(EVENT_TRIGGER_BOOT, "pre-init", strlen("pre-init"));
     PostTrigger(EVENT_TRIGGER_BOOT, "init", strlen("init"));
@@ -304,3 +350,33 @@ void SystemRun(void)
 {
     StartParamService();
 }
+
+int SetServiceEnterSandbox(const char *path)
+{
+    if (g_enableSandbox == false) {
+        return -1;
+    }
+    INIT_ERROR_CHECK(path != NULL, return -1, "Service path is null.");
+    if (strstr(path, "/system/bin") != NULL) {
+        if (strcmp(path, "/system/bin/sh") == 0) {
+            INIT_LOGI("Console cannot enter sandbox.");
+        } else if (strcmp(path, "/system/bin/hdcd") == 0) {
+            INIT_LOGI("Hdcd cannot enter sandbox.");
+        } else if (strcmp(path, "/system/bin/appspawn") == 0) {
+            INIT_LOGI("Appspawn cannot enter sandbox.");
+        } else if (strcmp(path, "/system/bin/ueventd") == 0) {
+            INIT_LOGI("Ueventd cannot enter sandbox.");
+        } else if (strcmp(path, "/system/bin/hilogd") == 0) {
+            INIT_LOGI("Hilogd cannot enter sandbox.");
+        } else {
+            INIT_ERROR_CHECK(EnterSandbox("system") == 0, return -1,
+                "Service %s failed enter sandbox system.", path);
+        }
+    } else if (strstr(path, "/vendor/bin") != NULL) {
+        INIT_ERROR_CHECK(EnterSandbox("system") == 0, return -1,
+            "Service %s failed enter sandbox system.", path);
+    } else {
+        INIT_LOGE("Service path %s is not support sandbox", path);
+    }
+    return 0;
+}

services/log/BUILD.gn

@@ -40,6 +40,7 @@ if (defined(ohos_lite)) {
       "system",
       "updater",
     ]
+    relative_install_dir = "platform-vndk"
     install_enable = true
     part_name = "init"
     subsystem_name = "startup"

test/unittest/BUILD.gn

@@ -38,6 +38,8 @@ ohos_unittest("init_ut") {
     "//base/startup/init_lite/interfaces/innerkits/fs_manager/fstab_mount.c",
     "//base/startup/init_lite/interfaces/innerkits/plugin/init_plugin.c",
     "//base/startup/init_lite/interfaces/innerkits/reboot/init_reboot_innerkits.c",
+    "//base/startup/init_lite/interfaces/innerkits/sandbox/sandbox.c",
+    "//base/startup/init_lite/interfaces/innerkits/sandbox/sandbox_namespace.c",
     "//base/startup/init_lite/interfaces/innerkits/socket/init_socket.c",
     "//base/startup/init_lite/services/begetctl/param_cmd.c",
     "//base/startup/init_lite/services/begetctl/shell/shell_bas.c",
@@ -168,6 +170,7 @@ ohos_unittest("init_ut") {
     "//third_party/cJSON",
     "//base/security/access_token/interfaces/innerkits/token_setproc/include",
     "//base/security/access_token/interfaces/innerkits/nativetoken/include",
+    "//base/startup/init_lite/interfaces/innerkits/sandbox/include",
   ]
 
   deps = [