2 * NSA Security-Enhanced Linux (SELinux) security module
4 * This file contains the SELinux security data structures for kernel objects.
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>
11 * Copyright (C) 2001,2002 Networks Associates Technology, Inc.
12 * Copyright (C) 2003 Red Hat, Inc., James Morris <jmorris@redhat.com>
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.
18 #ifndef _SELINUX_OBJSEC_H_
19 #define _SELINUX_OBJSEC_H_
21 #include <linux/list.h>
22 #include <linux/sched.h>
24 #include <linux/binfmts.h>
26 #include <linux/spinlock.h>
30 struct task_security_struct {
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 keycreate_sid; /* keycreate SID */
37 u32 sockcreate_sid; /* fscreate SID */
38 u32 ptrace_sid; /* SID of ptrace parent */
41 struct inode_security_struct {
42 struct inode *inode; /* back pointer to inode object */
43 struct list_head list; /* list of inode_security_struct */
44 u32 task_sid; /* SID of creating task */
45 u32 sid; /* SID of this object */
46 u16 sclass; /* security class of this object */
47 unsigned char initialized; /* initialization flag */
49 unsigned char inherit; /* inherit SID from parent entry */
52 struct file_security_struct {
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 u32 isid; /* SID of inode at the time of file open */
57 u32 pseqno; /* Policy seqno at the time of file open */
60 struct superblock_security_struct {
61 struct super_block *sb; /* back pointer to sb object */
62 struct list_head list; /* list of superblock_security_struct */
63 u32 sid; /* SID of file system superblock */
64 u32 def_sid; /* default SID for labeling */
65 u32 mntpoint_sid; /* SECURITY_FS_USE_MNTPOINT context for files */
66 unsigned int behavior; /* labeling behavior */
67 unsigned char initialized; /* initialization flag */
68 unsigned char flags; /* which mount options were specified */
69 unsigned char proc; /* proc fs */
71 struct list_head isec_head;
75 struct msg_security_struct {
76 struct msg_msg *msg; /* back pointer */
77 u32 sid; /* SID of message */
80 struct ipc_security_struct {
81 struct kern_ipc_perm *ipc_perm; /* back pointer */
82 u16 sclass; /* security class of this object */
83 u32 sid; /* SID of IPC resource */
86 struct bprm_security_struct {
87 struct linux_binprm *bprm; /* back pointer to bprm object */
88 u32 sid; /* SID for transformed process */
92 * unsafe is used to share failure information from bprm_apply_creds()
93 * to bprm_post_apply_creds().
98 struct netif_security_struct {
99 int ifindex; /* device index */
100 u32 sid; /* SID for this interface */
103 struct netnode_security_struct {
105 __be32 ipv4; /* IPv4 node address */
106 struct in6_addr ipv6; /* IPv6 node address */
108 u32 sid; /* SID for this node */
109 u16 family; /* address family */
112 struct sk_security_struct {
113 struct sock *sk; /* back pointer to sk object */
114 u32 sid; /* SID of this object */
115 u32 peer_sid; /* SID of peer */
116 u16 sclass; /* sock security class */
117 #ifdef CONFIG_NETLABEL
118 enum { /* NetLabel state */
123 spinlock_t nlbl_lock; /* protects nlbl_state */
127 struct key_security_struct {
128 struct key *obj; /* back pointer */
129 u32 sid; /* SID of key */
132 extern unsigned int selinux_checkreqprot;
134 #endif /* _SELINUX_OBJSEC_H_ */