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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
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>
Eric Parisa936b792008-04-22 17:46:10 -04007 * Chris Vance, <cvance@nai.com>
8 * Wayne Salamon, <wsalamon@nai.com>
9 * James Morris <jmorris@redhat.com>
Linus Torvalds1da177e2005-04-16 15:20:36 -070010 *
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,
Eric Parisa936b792008-04-22 17:46:10 -040016 * as published by the Free Software Foundation.
Linus Torvalds1da177e2005-04-16 15:20:36 -070017 */
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>
Paul Moore9f2ad662006-11-17 17:38:53 -050026#include <linux/spinlock.h>
Paul Moorecbe0d6e2014-09-10 17:09:57 -040027#include <net/net_namespace.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070028#include "flask.h"
29#include "avc.h"
30
31struct task_security_struct {
Eric Parisa936b792008-04-22 17:46:10 -040032 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 */
Linus Torvalds1da177e2005-04-16 15:20:36 -070038};
39
40struct inode_security_struct {
Eric Parisa936b792008-04-22 17:46:10 -040041 struct inode *inode; /* back pointer to inode object */
Steven Rostedt3dc91d42014-01-09 21:46:34 -050042 union {
43 struct list_head list; /* list of inode_security_struct */
44 struct rcu_head rcu; /* for freeing the inode_security_struct */
45 };
Eric Parisa936b792008-04-22 17:46:10 -040046 u32 task_sid; /* SID of creating task */
47 u32 sid; /* SID of this object */
48 u16 sclass; /* security class of this object */
49 unsigned char initialized; /* initialization flag */
Richard Kennedyfdeb0512008-05-18 12:32:57 +010050 struct mutex lock;
Linus Torvalds1da177e2005-04-16 15:20:36 -070051};
52
53struct file_security_struct {
Eric Parisa936b792008-04-22 17:46:10 -040054 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 */
Linus Torvalds1da177e2005-04-16 15:20:36 -070058};
59
60struct superblock_security_struct {
Eric Parisa936b792008-04-22 17:46:10 -040061 struct super_block *sb; /* back pointer to sb object */
Eric Parisc312feb2006-07-10 04:43:53 -070062 u32 sid; /* SID of file system superblock */
Linus Torvalds1da177e2005-04-16 15:20:36 -070063 u32 def_sid; /* default SID for labeling */
Eric Parisc312feb2006-07-10 04:43:53 -070064 u32 mntpoint_sid; /* SECURITY_FS_USE_MNTPOINT context for files */
Eric Parisf936c6e2012-10-10 10:38:47 -040065 unsigned short behavior; /* labeling behavior */
Eric Pariscfca0302012-10-09 16:20:08 -040066 unsigned short flags; /* which mount options were specified */
Eric Parisbc7e9822006-09-25 23:32:02 -070067 struct mutex lock;
Linus Torvalds1da177e2005-04-16 15:20:36 -070068 struct list_head isec_head;
69 spinlock_t isec_lock;
70};
71
72struct msg_security_struct {
Eric Parisa936b792008-04-22 17:46:10 -040073 u32 sid; /* SID of message */
Linus Torvalds1da177e2005-04-16 15:20:36 -070074};
75
76struct ipc_security_struct {
Linus Torvalds1da177e2005-04-16 15:20:36 -070077 u16 sclass; /* security class of this object */
Eric Parisa936b792008-04-22 17:46:10 -040078 u32 sid; /* SID of IPC resource */
Linus Torvalds1da177e2005-04-16 15:20:36 -070079};
80
Linus Torvalds1da177e2005-04-16 15:20:36 -070081struct netif_security_struct {
Paul Moorecbe0d6e2014-09-10 17:09:57 -040082 struct net *ns; /* network namespace */
Paul Mooree8bfdb92008-01-29 08:38:08 -050083 int ifindex; /* device index */
84 u32 sid; /* SID for this interface */
Linus Torvalds1da177e2005-04-16 15:20:36 -070085};
86
Paul Moore224dfbd2008-01-29 08:38:13 -050087struct netnode_security_struct {
88 union {
89 __be32 ipv4; /* IPv4 node address */
90 struct in6_addr ipv6; /* IPv6 node address */
91 } addr;
92 u32 sid; /* SID for this node */
93 u16 family; /* address family */
94};
95
Paul Moore3e112172008-04-10 10:48:14 -040096struct netport_security_struct {
97 u32 sid; /* SID for this node */
98 u16 port; /* port number */
99 u8 protocol; /* transport protocol */
100};
101
Linus Torvalds1da177e2005-04-16 15:20:36 -0700102struct sk_security_struct {
Paul Moore220deb92008-01-29 08:38:23 -0500103#ifdef CONFIG_NETLABEL
Venkat Yekkirala7420ed22006-08-04 23:17:57 -0700104 enum { /* NetLabel state */
105 NLBL_UNSET = 0,
106 NLBL_REQUIRE,
107 NLBL_LABELED,
Paul Moore948bf852008-10-10 10:16:32 -0400108 NLBL_REQSKB,
Paul Moore014ab192008-10-10 10:16:33 -0400109 NLBL_CONNLABELED,
Venkat Yekkirala7420ed22006-08-04 23:17:57 -0700110 } nlbl_state;
Paul Moore6c5b3fc2008-10-10 10:16:33 -0400111 struct netlbl_lsm_secattr *nlbl_secattr; /* NetLabel sec attributes */
Venkat Yekkirala7420ed22006-08-04 23:17:57 -0700112#endif
Paul Moore6c5b3fc2008-10-10 10:16:33 -0400113 u32 sid; /* SID of this object */
114 u32 peer_sid; /* SID of peer */
115 u16 sclass; /* sock security class */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700116};
117
Paul Moore5dbbaf22013-01-14 07:12:19 +0000118struct tun_security_struct {
119 u32 sid; /* SID for the tun device sockets */
120};
121
Michael LeMayd7200242006-06-22 14:47:17 -0700122struct key_security_struct {
Eric Parisa936b792008-04-22 17:46:10 -0400123 u32 sid; /* SID of key */
Michael LeMayd7200242006-06-22 14:47:17 -0700124};
125
Linus Torvalds1da177e2005-04-16 15:20:36 -0700126extern unsigned int selinux_checkreqprot;
127
128#endif /* _SELINUX_OBJSEC_H_ */