Files
staralien 0afc82cd6f security:dec:Enable DEC(Dynamic Enhance Control) control policy
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DEC(Dynamic Enhance Control) is a dynamic file access enhancement mechanism. It resolves DAC interception and sharefs security risks, precisely controlling file access via a kernel permission database, ioctl interfaces and LSM framework.

DEC will bind the token ID of the application and the paths it can access. The user-level sandboxmanager module and appspawn module will configure the relevant policies. When the application accesses the control paths under the sharefs file system, DEC checks the:
	create,
	read,
	write,
	remove,
	rename,
	move,
	access
of files by the application.

Signed-off-by: staralien <chengxin@servicecenter-harmonytsc.com>
2026-01-21 21:32:28 +08:00

19 lines
631 B
C

// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (c) 2026 Huawei Device Co., Ltd.
*/
#ifndef _DEC_UTILS_H
#define _DEC_UTILS_H
#include "dec_common.h"
int is_path_valid(const char *path);
struct trie_node *trie_node_create(const char *component);
struct trie_node *find_child(struct trie_node *node, const char *component);
struct trie_node *insert_child(struct trie_node *parent, const char *component);
void trie_node_destroy(struct trie_node *node);
int split_path_to_component_list(const char *path, struct list_head *comp_list);
void free_component_list(struct list_head *comp_list);
#endif /* _DEC_UTILS_H */