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1da177e4 LT |
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> | |
a936b79b EP |
7 | * Chris Vance, <cvance@nai.com> |
8 | * Wayne Salamon, <wsalamon@nai.com> | |
9 | * James Morris <jmorris@redhat.com> | |
1da177e4 LT |
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, | |
a936b79b | 16 | * as published by the Free Software Foundation. |
1da177e4 LT |
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> | |
9f2ad665 | 26 | #include <linux/spinlock.h> |
1da177e4 LT |
27 | #include "flask.h" |
28 | #include "avc.h" | |
29 | ||
30 | struct task_security_struct { | |
a936b79b EP |
31 | u32 osid; /* SID prior to last execve */ |
32 | u32 sid; /* current SID */ | |
33 | u32 exec_sid; /* exec SID */ | |
34 | u32 create_sid; /* fscreate SID */ | |
35 | u32 keycreate_sid; /* keycreate SID */ | |
36 | u32 sockcreate_sid; /* fscreate SID */ | |
1da177e4 LT |
37 | }; |
38 | ||
39 | struct inode_security_struct { | |
a936b79b | 40 | struct inode *inode; /* back pointer to inode object */ |
3dc91d43 SR |
41 | union { |
42 | struct list_head list; /* list of inode_security_struct */ | |
43 | struct rcu_head rcu; /* for freeing the inode_security_struct */ | |
44 | }; | |
a936b79b EP |
45 | u32 task_sid; /* SID of creating task */ |
46 | u32 sid; /* SID of this object */ | |
47 | u16 sclass; /* security class of this object */ | |
48 | unsigned char initialized; /* initialization flag */ | |
fdeb0518 | 49 | struct mutex lock; |
1da177e4 LT |
50 | }; |
51 | ||
52 | struct file_security_struct { | |
a936b79b EP |
53 | u32 sid; /* SID of open file description */ |
54 | u32 fown_sid; /* SID of file owner (for SIGIO) */ | |
55 | u32 isid; /* SID of inode at the time of file open */ | |
56 | u32 pseqno; /* Policy seqno at the time of file open */ | |
1da177e4 LT |
57 | }; |
58 | ||
59 | struct superblock_security_struct { | |
a936b79b | 60 | struct super_block *sb; /* back pointer to sb object */ |
c312feb2 | 61 | u32 sid; /* SID of file system superblock */ |
1da177e4 | 62 | u32 def_sid; /* default SID for labeling */ |
c312feb2 | 63 | u32 mntpoint_sid; /* SECURITY_FS_USE_MNTPOINT context for files */ |
f936c6e5 | 64 | unsigned short behavior; /* labeling behavior */ |
cfca0303 | 65 | unsigned short flags; /* which mount options were specified */ |
bc7e982b | 66 | struct mutex lock; |
1da177e4 LT |
67 | struct list_head isec_head; |
68 | spinlock_t isec_lock; | |
69 | }; | |
70 | ||
71 | struct msg_security_struct { | |
a936b79b | 72 | u32 sid; /* SID of message */ |
1da177e4 LT |
73 | }; |
74 | ||
75 | struct ipc_security_struct { | |
1da177e4 | 76 | u16 sclass; /* security class of this object */ |
a936b79b | 77 | u32 sid; /* SID of IPC resource */ |
1da177e4 LT |
78 | }; |
79 | ||
1da177e4 | 80 | struct netif_security_struct { |
e8bfdb9d PM |
81 | int ifindex; /* device index */ |
82 | u32 sid; /* SID for this interface */ | |
1da177e4 LT |
83 | }; |
84 | ||
224dfbd8 PM |
85 | struct netnode_security_struct { |
86 | union { | |
87 | __be32 ipv4; /* IPv4 node address */ | |
88 | struct in6_addr ipv6; /* IPv6 node address */ | |
89 | } addr; | |
90 | u32 sid; /* SID for this node */ | |
91 | u16 family; /* address family */ | |
92 | }; | |
93 | ||
3e112172 PM |
94 | struct netport_security_struct { |
95 | u32 sid; /* SID for this node */ | |
96 | u16 port; /* port number */ | |
97 | u8 protocol; /* transport protocol */ | |
98 | }; | |
99 | ||
1da177e4 | 100 | struct sk_security_struct { |
220deb96 | 101 | #ifdef CONFIG_NETLABEL |
7420ed23 VY |
102 | enum { /* NetLabel state */ |
103 | NLBL_UNSET = 0, | |
104 | NLBL_REQUIRE, | |
105 | NLBL_LABELED, | |
948bf85c | 106 | NLBL_REQSKB, |
014ab19a | 107 | NLBL_CONNLABELED, |
7420ed23 | 108 | } nlbl_state; |
6c5b3fc0 | 109 | struct netlbl_lsm_secattr *nlbl_secattr; /* NetLabel sec attributes */ |
7420ed23 | 110 | #endif |
6c5b3fc0 PM |
111 | u32 sid; /* SID of this object */ |
112 | u32 peer_sid; /* SID of peer */ | |
113 | u16 sclass; /* sock security class */ | |
1da177e4 LT |
114 | }; |
115 | ||
5dbbaf2d PM |
116 | struct tun_security_struct { |
117 | u32 sid; /* SID for the tun device sockets */ | |
118 | }; | |
119 | ||
d720024e | 120 | struct key_security_struct { |
a936b79b | 121 | u32 sid; /* SID of key */ |
d720024e ML |
122 | }; |
123 | ||
1da177e4 LT |
124 | extern unsigned int selinux_checkreqprot; |
125 | ||
126 | #endif /* _SELINUX_OBJSEC_H_ */ |