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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> | |
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> | |
9f2ad665 | 26 | #include <linux/spinlock.h> |
1da177e4 LT |
27 | #include "flask.h" |
28 | #include "avc.h" | |
29 | ||
30 | struct task_security_struct { | |
1da177e4 LT |
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 */ | |
4eb582cf | 35 | u32 keycreate_sid; /* keycreate SID */ |
42c3e03e | 36 | u32 sockcreate_sid; /* fscreate SID */ |
1da177e4 LT |
37 | }; |
38 | ||
39 | struct inode_security_struct { | |
1da177e4 LT |
40 | struct inode *inode; /* back pointer to inode object */ |
41 | struct list_head list; /* list of inode_security_struct */ | |
42 | u32 task_sid; /* SID of creating task */ | |
43 | u32 sid; /* SID of this object */ | |
44 | u16 sclass; /* security class of this object */ | |
45 | unsigned char initialized; /* initialization flag */ | |
23970741 | 46 | struct mutex lock; |
1da177e4 LT |
47 | unsigned char inherit; /* inherit SID from parent entry */ |
48 | }; | |
49 | ||
50 | struct file_security_struct { | |
1da177e4 LT |
51 | u32 sid; /* SID of open file description */ |
52 | u32 fown_sid; /* SID of file owner (for SIGIO) */ | |
788e7dd4 YN |
53 | u32 isid; /* SID of inode at the time of file open */ |
54 | u32 pseqno; /* Policy seqno at the time of file open */ | |
1da177e4 LT |
55 | }; |
56 | ||
57 | struct superblock_security_struct { | |
1da177e4 LT |
58 | struct super_block *sb; /* back pointer to sb object */ |
59 | struct list_head list; /* list of superblock_security_struct */ | |
c312feb2 | 60 | u32 sid; /* SID of file system superblock */ |
1da177e4 | 61 | u32 def_sid; /* default SID for labeling */ |
c312feb2 | 62 | u32 mntpoint_sid; /* SECURITY_FS_USE_MNTPOINT context for files */ |
1da177e4 LT |
63 | unsigned int behavior; /* labeling behavior */ |
64 | unsigned char initialized; /* initialization flag */ | |
c9180a57 | 65 | unsigned char flags; /* which mount options were specified */ |
1da177e4 | 66 | unsigned char proc; /* proc fs */ |
bc7e982b | 67 | struct mutex lock; |
1da177e4 LT |
68 | struct list_head isec_head; |
69 | spinlock_t isec_lock; | |
70 | }; | |
71 | ||
72 | struct msg_security_struct { | |
1da177e4 LT |
73 | u32 sid; /* SID of message */ |
74 | }; | |
75 | ||
76 | struct ipc_security_struct { | |
1da177e4 LT |
77 | u16 sclass; /* security class of this object */ |
78 | u32 sid; /* SID of IPC resource */ | |
79 | }; | |
80 | ||
81 | struct bprm_security_struct { | |
1da177e4 LT |
82 | u32 sid; /* SID for transformed process */ |
83 | unsigned char set; | |
84 | ||
85 | /* | |
86 | * unsafe is used to share failure information from bprm_apply_creds() | |
87 | * to bprm_post_apply_creds(). | |
88 | */ | |
89 | char unsafe; | |
90 | }; | |
91 | ||
92 | struct netif_security_struct { | |
e8bfdb9d PM |
93 | int ifindex; /* device index */ |
94 | u32 sid; /* SID for this interface */ | |
1da177e4 LT |
95 | }; |
96 | ||
224dfbd8 PM |
97 | struct netnode_security_struct { |
98 | union { | |
99 | __be32 ipv4; /* IPv4 node address */ | |
100 | struct in6_addr ipv6; /* IPv6 node address */ | |
101 | } addr; | |
102 | u32 sid; /* SID for this node */ | |
103 | u16 family; /* address family */ | |
104 | }; | |
105 | ||
3e112172 PM |
106 | struct netport_security_struct { |
107 | u32 sid; /* SID for this node */ | |
108 | u16 port; /* port number */ | |
109 | u8 protocol; /* transport protocol */ | |
110 | }; | |
111 | ||
1da177e4 | 112 | struct sk_security_struct { |
892c141e | 113 | u32 sid; /* SID of this object */ |
1da177e4 | 114 | u32 peer_sid; /* SID of peer */ |
7420ed23 | 115 | u16 sclass; /* sock security class */ |
220deb96 | 116 | #ifdef CONFIG_NETLABEL |
7420ed23 VY |
117 | enum { /* NetLabel state */ |
118 | NLBL_UNSET = 0, | |
119 | NLBL_REQUIRE, | |
120 | NLBL_LABELED, | |
121 | } nlbl_state; | |
122 | #endif | |
1da177e4 LT |
123 | }; |
124 | ||
d720024e | 125 | struct key_security_struct { |
d720024e ML |
126 | u32 sid; /* SID of key */ |
127 | }; | |
128 | ||
1da177e4 LT |
129 | extern unsigned int selinux_checkreqprot; |
130 | ||
131 | #endif /* _SELINUX_OBJSEC_H_ */ |