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>
24 #include <asm/system.h>
27 /* Auxiliary data to use in generating the audit record. */
28 struct common_audit_data {
30 #define LSM_AUDIT_DATA_PATH 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 #define LSM_AUDIT_DATA_NONE 7
37 #define LSM_AUDIT_DATA_KMOD 8
38 #define LSM_AUDIT_DATA_INODE 9
39 #define LSM_AUDIT_DATA_DENTRY 10
40 struct task_struct *tsk;
43 struct dentry *dentry;
57 struct in6_addr daddr;
58 struct in6_addr saddr;
64 struct task_struct *tsk;
73 /* this union contains LSM specific data */
75 #ifdef CONFIG_SECURITY_SMACK
77 struct smack_audit_data {
85 #ifdef CONFIG_SECURITY_SELINUX
95 * auditdeny is a bit tricky and unintuitive. See the
96 * comments in avc.c for it's meaning and usage.
99 struct av_decision *avd;
101 } selinux_audit_data;
103 #ifdef CONFIG_SECURITY_APPARMOR
122 const char *src_name;
139 } apparmor_audit_data;
142 /* these callback will be implemented by a specific LSM */
143 void (*lsm_pre_audit)(struct audit_buffer *, void *);
144 void (*lsm_post_audit)(struct audit_buffer *, void *);
147 #define v4info fam.v4
148 #define v6info fam.v6
150 int ipv4_skb_to_auditdata(struct sk_buff *skb,
151 struct common_audit_data *ad, u8 *proto);
153 int ipv6_skb_to_auditdata(struct sk_buff *skb,
154 struct common_audit_data *ad, u8 *proto);
156 /* Initialize an LSM audit data structure. */
157 #define COMMON_AUDIT_DATA_INIT(_d, _t) \
158 { memset((_d), 0, sizeof(struct common_audit_data)); \
159 (_d)->type = LSM_AUDIT_DATA_##_t; }
161 void common_lsm_audit(struct common_audit_data *a);