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/*
* NSA Security-Enhanced Linux (SELinux) security module
*
* This file contains the SELinux security data structures for kernel objects.
*
* Author(s): Stephen Smalley, <sds@epoch.ncsc.mil>
* Chris Vance, <cvance@nai.com>
* Wayne Salamon, <wsalamon@nai.com>
* James Morris <jmorris@redhat.com>
*
* Copyright (C) 2001,2002 Networks Associates Technology, Inc.
* Copyright (C) 2003 Red Hat, Inc., James Morris <jmorris@redhat.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2,
* as published by the Free Software Foundation.
*/
#ifndef _SELINUX_OBJSEC_H_
#define _SELINUX_OBJSEC_H_
#include <linux/list.h>
#include <linux/sched.h>
#include <linux/fs.h>
#include <linux/binfmts.h>
#include <linux/in.h>
#include <linux/spinlock.h>
#include "flask.h"
#include "avc.h"
struct task_security_struct {
struct task_struct *task; /* back pointer to task object */
u32 osid; /* SID prior to last execve */
u32 sid; /* current SID */
u32 exec_sid; /* exec SID */
u32 create_sid; /* fscreate SID */
u32 keycreate_sid; /* keycreate SID */
u32 sockcreate_sid; /* fscreate SID */
u32 ptrace_sid; /* SID of ptrace parent */
};
struct inode_security_struct {
struct inode *inode; /* back pointer to inode object */
struct list_head list; /* list of inode_security_struct */
u32 task_sid; /* SID of creating task */
u32 sid; /* SID of this object */
u16 sclass; /* security class of this object */
unsigned char initialized; /* initialization flag */
struct mutex lock;
unsigned char inherit; /* inherit SID from parent entry */
};
struct file_security_struct {
struct file *file; /* back pointer to file object */
u32 sid; /* SID of open file description */
u32 fown_sid; /* SID of file owner (for SIGIO) */
u32 isid; /* SID of inode at the time of file open */
u32 pseqno; /* Policy seqno at the time of file open */
};
struct superblock_security_struct {
struct super_block *sb; /* back pointer to sb object */
struct list_head list; /* list of superblock_security_struct */
u32 sid; /* SID of file system superblock */
u32 def_sid; /* default SID for labeling */
u32 mntpoint_sid; /* SECURITY_FS_USE_MNTPOINT context for files */
unsigned int behavior; /* labeling behavior */
unsigned char initialized; /* initialization flag */
unsigned char flags; /* which mount options were specified */
unsigned char proc; /* proc fs */
struct mutex lock;
struct list_head isec_head;
spinlock_t isec_lock;
};
struct msg_security_struct {
struct msg_msg *msg; /* back pointer */
u32 sid; /* SID of message */
};
struct ipc_security_struct {
struct kern_ipc_perm *ipc_perm; /* back pointer */
u16 sclass; /* security class of this object */
u32 sid; /* SID of IPC resource */
};
struct bprm_security_struct {
struct linux_binprm *bprm; /* back pointer to bprm object */
u32 sid; /* SID for transformed process */
unsigned char set;
/*
* unsafe is used to share failure information from bprm_apply_creds()
* to bprm_post_apply_creds().
*/
char unsafe;
};
struct netif_security_struct {
int ifindex; /* device index */
u32 sid; /* SID for this interface */
};
struct netnode_security_struct {
union {
__be32 ipv4; /* IPv4 node address */
struct in6_addr ipv6; /* IPv6 node address */
} addr;
u32 sid; /* SID for this node */
u16 family; /* address family */
};
struct sk_security_struct {
struct sock *sk; /* back pointer to sk object */
u32 sid; /* SID of this object */
u32 peer_sid; /* SID of peer */
u16 sclass; /* sock security class */
#ifdef CONFIG_NETLABEL
enum { /* NetLabel state */
NLBL_UNSET = 0,
NLBL_REQUIRE,
NLBL_LABELED,
} nlbl_state;
spinlock_t nlbl_lock; /* protects nlbl_state */
#endif
};
struct key_security_struct {
struct key *obj; /* back pointer */
u32 sid; /* SID of key */
};
extern unsigned int selinux_checkreqprot;
#endif /* _SELINUX_OBJSEC_H_ */
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