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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 <linux/spinlock.h>
27#include "flask.h"
28#include "avc.h"
29
30struct task_security_struct {
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 */
37};
38
39struct inode_security_struct {
40 struct inode *inode; /* back pointer to inode object */
41 union {
42 struct list_head list; /* list of inode_security_struct */
43 struct rcu_head rcu; /* for freeing the inode_security_struct */
44 };
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 */
49 struct mutex lock;
50};
51
52struct file_security_struct {
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 */
57};
58
59struct superblock_security_struct {
60 struct super_block *sb; /* back pointer to sb object */
61 u32 sid; /* SID of file system superblock */
62 u32 def_sid; /* default SID for labeling */
63 u32 mntpoint_sid; /* SECURITY_FS_USE_MNTPOINT context for files */
64 unsigned short behavior; /* labeling behavior */
65 unsigned short flags; /* which mount options were specified */
66 struct mutex lock;
67 struct list_head isec_head;
68 spinlock_t isec_lock;
69};
70
71struct msg_security_struct {
72 u32 sid; /* SID of message */
73};
74
75struct ipc_security_struct {
76 u16 sclass; /* security class of this object */
77 u32 sid; /* SID of IPC resource */
78};
79
80struct netif_security_struct {
81 int ifindex; /* device index */
82 u32 sid; /* SID for this interface */
83};
84
85struct 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
94struct netport_security_struct {
95 u32 sid; /* SID for this node */
96 u16 port; /* port number */
97 u8 protocol; /* transport protocol */
98};
99
100struct sk_security_struct {
101#ifdef CONFIG_NETLABEL
102 enum { /* NetLabel state */
103 NLBL_UNSET = 0,
104 NLBL_REQUIRE,
105 NLBL_LABELED,
106 NLBL_REQSKB,
107 NLBL_CONNLABELED,
108 } nlbl_state;
109 struct netlbl_lsm_secattr *nlbl_secattr; /* NetLabel sec attributes */
110#endif
111 u32 sid; /* SID of this object */
112 u32 peer_sid; /* SID of peer */
113 u16 sclass; /* sock security class */
114};
115
116struct tun_security_struct {
117 u32 sid; /* SID for the tun device sockets */
118};
119
120struct key_security_struct {
121 u32 sid; /* SID of key */
122};
123
124extern unsigned int selinux_checkreqprot;
125
126#endif /* _SELINUX_OBJSEC_H_ */
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@tycho.nsa.gov>
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 * Copyright (C) 2016 Mellanox Technologies
14 *
15 * This program is free software; you can redistribute it and/or modify
16 * it under the terms of the GNU General Public License version 2,
17 * as published by the Free Software Foundation.
18 */
19#ifndef _SELINUX_OBJSEC_H_
20#define _SELINUX_OBJSEC_H_
21
22#include <linux/list.h>
23#include <linux/sched.h>
24#include <linux/fs.h>
25#include <linux/binfmts.h>
26#include <linux/in.h>
27#include <linux/spinlock.h>
28#include <net/net_namespace.h>
29#include "flask.h"
30#include "avc.h"
31
32struct task_security_struct {
33 u32 osid; /* SID prior to last execve */
34 u32 sid; /* current SID */
35 u32 exec_sid; /* exec SID */
36 u32 create_sid; /* fscreate SID */
37 u32 keycreate_sid; /* keycreate SID */
38 u32 sockcreate_sid; /* fscreate SID */
39};
40
41/*
42 * get the subjective security ID of the current task
43 */
44static inline u32 current_sid(void)
45{
46 const struct task_security_struct *tsec = current_security();
47
48 return tsec->sid;
49}
50
51enum label_initialized {
52 LABEL_INVALID, /* invalid or not initialized */
53 LABEL_INITIALIZED, /* initialized */
54 LABEL_PENDING
55};
56
57struct inode_security_struct {
58 struct inode *inode; /* back pointer to inode object */
59 union {
60 struct list_head list; /* list of inode_security_struct */
61 struct rcu_head rcu; /* for freeing the inode_security_struct */
62 };
63 u32 task_sid; /* SID of creating task */
64 u32 sid; /* SID of this object */
65 u16 sclass; /* security class of this object */
66 unsigned char initialized; /* initialization flag */
67 spinlock_t lock;
68};
69
70struct file_security_struct {
71 u32 sid; /* SID of open file description */
72 u32 fown_sid; /* SID of file owner (for SIGIO) */
73 u32 isid; /* SID of inode at the time of file open */
74 u32 pseqno; /* Policy seqno at the time of file open */
75};
76
77struct superblock_security_struct {
78 struct super_block *sb; /* back pointer to sb object */
79 u32 sid; /* SID of file system superblock */
80 u32 def_sid; /* default SID for labeling */
81 u32 mntpoint_sid; /* SECURITY_FS_USE_MNTPOINT context for files */
82 unsigned short behavior; /* labeling behavior */
83 unsigned short flags; /* which mount options were specified */
84 struct mutex lock;
85 struct list_head isec_head;
86 spinlock_t isec_lock;
87};
88
89struct msg_security_struct {
90 u32 sid; /* SID of message */
91};
92
93struct ipc_security_struct {
94 u16 sclass; /* security class of this object */
95 u32 sid; /* SID of IPC resource */
96};
97
98struct netif_security_struct {
99 struct net *ns; /* network namespace */
100 int ifindex; /* device index */
101 u32 sid; /* SID for this interface */
102};
103
104struct netnode_security_struct {
105 union {
106 __be32 ipv4; /* IPv4 node address */
107 struct in6_addr ipv6; /* IPv6 node address */
108 } addr;
109 u32 sid; /* SID for this node */
110 u16 family; /* address family */
111};
112
113struct netport_security_struct {
114 u32 sid; /* SID for this node */
115 u16 port; /* port number */
116 u8 protocol; /* transport protocol */
117};
118
119struct sk_security_struct {
120#ifdef CONFIG_NETLABEL
121 enum { /* NetLabel state */
122 NLBL_UNSET = 0,
123 NLBL_REQUIRE,
124 NLBL_LABELED,
125 NLBL_REQSKB,
126 NLBL_CONNLABELED,
127 } nlbl_state;
128 struct netlbl_lsm_secattr *nlbl_secattr; /* NetLabel sec attributes */
129#endif
130 u32 sid; /* SID of this object */
131 u32 peer_sid; /* SID of peer */
132 u16 sclass; /* sock security class */
133 enum { /* SCTP association state */
134 SCTP_ASSOC_UNSET = 0,
135 SCTP_ASSOC_SET,
136 } sctp_assoc_state;
137};
138
139struct tun_security_struct {
140 u32 sid; /* SID for the tun device sockets */
141};
142
143struct key_security_struct {
144 u32 sid; /* SID of key */
145};
146
147struct ib_security_struct {
148 u32 sid; /* SID of the queue pair or MAD agent */
149};
150
151struct pkey_security_struct {
152 u64 subnet_prefix; /* Port subnet prefix */
153 u16 pkey; /* PKey number */
154 u32 sid; /* SID of pkey */
155};
156
157struct bpf_security_struct {
158 u32 sid; /*SID of bpf obj creater*/
159};
160
161#endif /* _SELINUX_OBJSEC_H_ */