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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> | |
26 | #include "flask.h" | |
27 | #include "avc.h" | |
28 | ||
29 | struct 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 | ||
39 | struct 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 | ||
51 | struct 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 | ||
58 | struct 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 | ||
72 | struct 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 | ||
78 | struct 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 | ||
85 | struct 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 | ||
98 | struct 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 | ||
104 | struct 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 | ||
110 | extern unsigned int selinux_checkreqprot; | |
111 | ||
112 | #endif /* _SELINUX_OBJSEC_H_ */ |