mirror of
https://github.com/torvalds/linux
synced 2024-07-21 10:41:44 +00:00
157a3537d6
commit2db154b3ea("vfs: syscall: Add move_mount(2) to move mounts around") introduced a new move_mount(2) system call and a corresponding new LSM security_move_mount hook but did not implement this hook for any existing LSM. This creates a regression for AppArmor mediation of mount. This patch provides a base mapping of the move_mount syscall to the existing mount mediation. In the future we may introduce additional mediations around the new mount calls. Fixes:2db154b3ea("vfs: syscall: Add move_mount(2) to move mounts around") CC: stable@vger.kernel.org Reported-by: Andreas Steinmetz <anstein99@googlemail.com> Signed-off-by: John Johansen <john.johansen@canonical.com>
61 lines
1.7 KiB
C
61 lines
1.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
|
|
/*
|
|
* AppArmor security module
|
|
*
|
|
* This file contains AppArmor file mediation function definitions.
|
|
*
|
|
* Copyright 2017 Canonical Ltd.
|
|
*/
|
|
|
|
#ifndef __AA_MOUNT_H
|
|
#define __AA_MOUNT_H
|
|
|
|
#include <linux/fs.h>
|
|
#include <linux/path.h>
|
|
|
|
#include "domain.h"
|
|
#include "policy.h"
|
|
|
|
/* mount perms */
|
|
#define AA_MAY_PIVOTROOT 0x01
|
|
#define AA_MAY_MOUNT 0x02
|
|
#define AA_MAY_UMOUNT 0x04
|
|
#define AA_AUDIT_DATA 0x40
|
|
#define AA_MNT_CONT_MATCH 0x40
|
|
|
|
#define AA_MS_IGNORE_MASK (MS_KERNMOUNT | MS_NOSEC | MS_ACTIVE | MS_BORN)
|
|
|
|
int aa_remount(const struct cred *subj_cred,
|
|
struct aa_label *label, const struct path *path,
|
|
unsigned long flags, void *data);
|
|
|
|
int aa_bind_mount(const struct cred *subj_cred,
|
|
struct aa_label *label, const struct path *path,
|
|
const char *old_name, unsigned long flags);
|
|
|
|
|
|
int aa_mount_change_type(const struct cred *subj_cred,
|
|
struct aa_label *label, const struct path *path,
|
|
unsigned long flags);
|
|
|
|
int aa_move_mount_old(const struct cred *subj_cred,
|
|
struct aa_label *label, const struct path *path,
|
|
const char *old_name);
|
|
int aa_move_mount(const struct cred *subj_cred,
|
|
struct aa_label *label, const struct path *from_path,
|
|
const struct path *to_path);
|
|
|
|
int aa_new_mount(const struct cred *subj_cred,
|
|
struct aa_label *label, const char *dev_name,
|
|
const struct path *path, const char *type, unsigned long flags,
|
|
void *data);
|
|
|
|
int aa_umount(const struct cred *subj_cred,
|
|
struct aa_label *label, struct vfsmount *mnt, int flags);
|
|
|
|
int aa_pivotroot(const struct cred *subj_cred,
|
|
struct aa_label *label, const struct path *old_path,
|
|
const struct path *new_path);
|
|
|
|
#endif /* __AA_MOUNT_H */
|