2 * Common LSM logging functions
3 * Heavily borrowed from selinux/avc.h
5 * Author : Etienne BASSET <etienne.basset@ensta.org>
7 * All credits to : Stephen Smalley, <sds@epoch.ncsc.mil>
8 * All BUGS to : Etienne BASSET <etienne.basset@ensta.org>
10 #ifndef _LSM_COMMON_LOGGING_
11 #define _LSM_COMMON_LOGGING_
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>
26 /* Auxiliary data to use in generating the audit record. */
27 struct common_audit_data {
29 #define LSM_AUDIT_DATA_PATH 1
30 #define LSM_AUDIT_DATA_NET 2
31 #define LSM_AUDIT_DATA_CAP 3
32 #define LSM_AUDIT_DATA_IPC 4
33 #define LSM_AUDIT_DATA_TASK 5
34 #define LSM_AUDIT_DATA_KEY 6
35 #define LSM_AUDIT_DATA_NONE 7
36 #define LSM_AUDIT_DATA_KMOD 8
37 #define LSM_AUDIT_DATA_INODE 9
38 #define LSM_AUDIT_DATA_DENTRY 10
39 struct task_struct *tsk;
42 struct dentry *dentry;
56 struct in6_addr daddr;
57 struct in6_addr saddr;
63 struct task_struct *tsk;
72 /* this union contains LSM specific data */
74 #ifdef CONFIG_SECURITY_SMACK
75 struct smack_audit_data *smack_audit_data;
77 #ifdef CONFIG_SECURITY_SELINUX
78 struct selinux_audit_data *selinux_audit_data;
80 #ifdef CONFIG_SECURITY_APPARMOR
81 struct apparmor_audit_data *apparmor_audit_data;
83 }; /* per LSM data pointer union */
84 /* these callback will be implemented by a specific LSM */
85 void (*lsm_pre_audit)(struct audit_buffer *, void *);
86 void (*lsm_post_audit)(struct audit_buffer *, void *);
92 int ipv4_skb_to_auditdata(struct sk_buff *skb,
93 struct common_audit_data *ad, u8 *proto);
95 int ipv6_skb_to_auditdata(struct sk_buff *skb,
96 struct common_audit_data *ad, u8 *proto);
98 /* Initialize an LSM audit data structure. */
99 #define COMMON_AUDIT_DATA_INIT(_d, _t) \
100 { memset((_d), 0, sizeof(struct common_audit_data)); \
101 (_d)->type = LSM_AUDIT_DATA_##_t; }
103 void common_lsm_audit(struct common_audit_data *a);