diff options
Diffstat (limited to 'include/linux/lsm_audit.h')
-rw-r--r-- | include/linux/lsm_audit.h | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/include/linux/lsm_audit.h b/include/linux/lsm_audit.h new file mode 100644 index 000000000000..e461b2c3d711 --- /dev/null +++ b/include/linux/lsm_audit.h | |||
@@ -0,0 +1,111 @@ | |||
1 | /* | ||
2 | * Common LSM logging functions | ||
3 | * Heavily borrowed from selinux/avc.h | ||
4 | * | ||
5 | * Author : Etienne BASSET <etienne.basset@ensta.org> | ||
6 | * | ||
7 | * All credits to : Stephen Smalley, <sds@epoch.ncsc.mil> | ||
8 | * All BUGS to : Etienne BASSET <etienne.basset@ensta.org> | ||
9 | */ | ||
10 | #ifndef _LSM_COMMON_LOGGING_ | ||
11 | #define _LSM_COMMON_LOGGING_ | ||
12 | |||
13 | #include <linux/stddef.h> | ||
14 | #include <linux/errno.h> | ||
15 | #include <linux/kernel.h> | ||
16 | #include <linux/kdev_t.h> | ||
17 | #include <linux/spinlock.h> | ||
18 | #include <linux/init.h> | ||
19 | #include <linux/audit.h> | ||
20 | #include <linux/in6.h> | ||
21 | #include <linux/path.h> | ||
22 | #include <linux/key.h> | ||
23 | #include <linux/skbuff.h> | ||
24 | #include <asm/system.h> | ||
25 | |||
26 | |||
27 | /* Auxiliary data to use in generating the audit record. */ | ||
28 | struct common_audit_data { | ||
29 | char type; | ||
30 | #define LSM_AUDIT_DATA_FS 1 | ||
31 | #define LSM_AUDIT_DATA_NET 2 | ||
32 | #define LSM_AUDIT_DATA_CAP 3 | ||
33 | #define LSM_AUDIT_DATA_IPC 4 | ||
34 | #define LSM_AUDIT_DATA_TASK 5 | ||
35 | #define LSM_AUDIT_DATA_KEY 6 | ||
36 | struct task_struct *tsk; | ||
37 | union { | ||
38 | struct { | ||
39 | struct path path; | ||
40 | struct inode *inode; | ||
41 | } fs; | ||
42 | struct { | ||
43 | int netif; | ||
44 | struct sock *sk; | ||
45 | u16 family; | ||
46 | __be16 dport; | ||
47 | __be16 sport; | ||
48 | union { | ||
49 | struct { | ||
50 | __be32 daddr; | ||
51 | __be32 saddr; | ||
52 | } v4; | ||
53 | struct { | ||
54 | struct in6_addr daddr; | ||
55 | struct in6_addr saddr; | ||
56 | } v6; | ||
57 | } fam; | ||
58 | } net; | ||
59 | int cap; | ||
60 | int ipc_id; | ||
61 | struct task_struct *tsk; | ||
62 | #ifdef CONFIG_KEYS | ||
63 | struct { | ||
64 | key_serial_t key; | ||
65 | char *key_desc; | ||
66 | } key_struct; | ||
67 | #endif | ||
68 | } u; | ||
69 | const char *function; | ||
70 | /* this union contains LSM specific data */ | ||
71 | union { | ||
72 | /* SMACK data */ | ||
73 | struct smack_audit_data { | ||
74 | char *subject; | ||
75 | char *object; | ||
76 | char *request; | ||
77 | int result; | ||
78 | } smack_audit_data; | ||
79 | /* SELinux data */ | ||
80 | struct { | ||
81 | u32 ssid; | ||
82 | u32 tsid; | ||
83 | u16 tclass; | ||
84 | u32 requested; | ||
85 | u32 audited; | ||
86 | struct av_decision *avd; | ||
87 | int result; | ||
88 | } selinux_audit_data; | ||
89 | } lsm_priv; | ||
90 | /* these callback will be implemented by a specific LSM */ | ||
91 | void (*lsm_pre_audit)(struct audit_buffer *, void *); | ||
92 | void (*lsm_post_audit)(struct audit_buffer *, void *); | ||
93 | }; | ||
94 | |||
95 | #define v4info fam.v4 | ||
96 | #define v6info fam.v6 | ||
97 | |||
98 | int ipv4_skb_to_auditdata(struct sk_buff *skb, | ||
99 | struct common_audit_data *ad, u8 *proto); | ||
100 | |||
101 | int ipv6_skb_to_auditdata(struct sk_buff *skb, | ||
102 | struct common_audit_data *ad, u8 *proto); | ||
103 | |||
104 | /* Initialize an LSM audit data structure. */ | ||
105 | #define COMMON_AUDIT_DATA_INIT(_d, _t) \ | ||
106 | { memset((_d), 0, sizeof(struct common_audit_data)); \ | ||
107 | (_d)->type = LSM_AUDIT_DATA_##_t; (_d)->function = __func__; } | ||
108 | |||
109 | void common_lsm_audit(struct common_audit_data *a); | ||
110 | |||
111 | #endif | ||