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1/*
2 * NSA Security-Enhanced Linux (SELinux) security module
3 *
4 * This file contains the SELinux security data structures for kernel objects.
5 *
6 * Author(s): Stephen Smalley, <sds@epoch.ncsc.mil>
7 * Chris Vance, <cvance@nai.com>
8 * Wayne Salamon, <wsalamon@nai.com>
9 * James Morris <jmorris@redhat.com>
10 *
11 * Copyright (C) 2001,2002 Networks Associates Technology, Inc.
12 * Copyright (C) 2003 Red Hat, Inc., James Morris <jmorris@redhat.com>
13 *
14 * This program is free software; you can redistribute it and/or modify
15 * it under the terms of the GNU General Public License version 2,
16 * as published by the Free Software Foundation.
17 */
18#ifndef _SELINUX_OBJSEC_H_
19#define _SELINUX_OBJSEC_H_
20
21#include <linux/list.h>
22#include <linux/sched.h>
23#include <linux/fs.h>
24#include <linux/binfmts.h>
25#include <linux/in.h>
26#include "flask.h"
27#include "avc.h"
28
29struct task_security_struct {
30 unsigned long magic; /* magic number for this module */
31 struct task_struct *task; /* back pointer to task object */
32 u32 osid; /* SID prior to last execve */
33 u32 sid; /* current SID */
34 u32 exec_sid; /* exec SID */
35 u32 create_sid; /* fscreate SID */
36 u32 ptrace_sid; /* SID of ptrace parent */
37};
38
39struct inode_security_struct {
40 unsigned long magic; /* magic number for this module */
41 struct inode *inode; /* back pointer to inode object */
42 struct list_head list; /* list of inode_security_struct */
43 u32 task_sid; /* SID of creating task */
44 u32 sid; /* SID of this object */
45 u16 sclass; /* security class of this object */
46 unsigned char initialized; /* initialization flag */
47 struct semaphore sem;
48 unsigned char inherit; /* inherit SID from parent entry */
49};
50
51struct file_security_struct {
52 unsigned long magic; /* magic number for this module */
53 struct file *file; /* back pointer to file object */
54 u32 sid; /* SID of open file description */
55 u32 fown_sid; /* SID of file owner (for SIGIO) */
56};
57
58struct superblock_security_struct {
59 unsigned long magic; /* magic number for this module */
60 struct super_block *sb; /* back pointer to sb object */
61 struct list_head list; /* list of superblock_security_struct */
62 u32 sid; /* SID of file system */
63 u32 def_sid; /* default SID for labeling */
64 unsigned int behavior; /* labeling behavior */
65 unsigned char initialized; /* initialization flag */
66 unsigned char proc; /* proc fs */
67 struct semaphore sem;
68 struct list_head isec_head;
69 spinlock_t isec_lock;
70};
71
72struct msg_security_struct {
73 unsigned long magic; /* magic number for this module */
74 struct msg_msg *msg; /* back pointer */
75 u32 sid; /* SID of message */
76};
77
78struct ipc_security_struct {
79 unsigned long magic; /* magic number for this module */
80 struct kern_ipc_perm *ipc_perm; /* back pointer */
81 u16 sclass; /* security class of this object */
82 u32 sid; /* SID of IPC resource */
83};
84
85struct bprm_security_struct {
86 unsigned long magic; /* magic number for this module */
87 struct linux_binprm *bprm; /* back pointer to bprm object */
88 u32 sid; /* SID for transformed process */
89 unsigned char set;
90
91 /*
92 * unsafe is used to share failure information from bprm_apply_creds()
93 * to bprm_post_apply_creds().
94 */
95 char unsafe;
96};
97
98struct netif_security_struct {
99 struct net_device *dev; /* back pointer */
100 u32 if_sid; /* SID for this interface */
101 u32 msg_sid; /* default SID for messages received on this interface */
102};
103
104struct sk_security_struct {
105 unsigned long magic; /* magic number for this module */
106 struct sock *sk; /* back pointer to sk object */
107 u32 peer_sid; /* SID of peer */
108};
109
110extern unsigned int selinux_checkreqprot;
111
112#endif /* _SELINUX_OBJSEC_H_ */