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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 <rdma/ib_verbs.h>
25
26struct lsm_network_audit {
27 int netif;
28 struct sock *sk;
29 u16 family;
30 __be16 dport;
31 __be16 sport;
32 union {
33 struct {
34 __be32 daddr;
35 __be32 saddr;
36 } v4;
37 struct {
38 struct in6_addr daddr;
39 struct in6_addr saddr;
40 } v6;
41 } fam;
42};
43
44struct lsm_ioctlop_audit {
45 struct path path;
46 u16 cmd;
47};
48
49struct lsm_ibpkey_audit {
50 u64 subnet_prefix;
51 u16 pkey;
52};
53
54struct lsm_ibendport_audit {
55 char dev_name[IB_DEVICE_NAME_MAX];
56 u8 port;
57};
58
59/* Auxiliary data to use in generating the audit record. */
60struct common_audit_data {
61 char type;
62#define LSM_AUDIT_DATA_PATH 1
63#define LSM_AUDIT_DATA_NET 2
64#define LSM_AUDIT_DATA_CAP 3
65#define LSM_AUDIT_DATA_IPC 4
66#define LSM_AUDIT_DATA_TASK 5
67#define LSM_AUDIT_DATA_KEY 6
68#define LSM_AUDIT_DATA_NONE 7
69#define LSM_AUDIT_DATA_KMOD 8
70#define LSM_AUDIT_DATA_INODE 9
71#define LSM_AUDIT_DATA_DENTRY 10
72#define LSM_AUDIT_DATA_IOCTL_OP 11
73#define LSM_AUDIT_DATA_FILE 12
74#define LSM_AUDIT_DATA_IBPKEY 13
75#define LSM_AUDIT_DATA_IBENDPORT 14
76 union {
77 struct path path;
78 struct dentry *dentry;
79 struct inode *inode;
80 struct lsm_network_audit *net;
81 int cap;
82 int ipc_id;
83 struct task_struct *tsk;
84#ifdef CONFIG_KEYS
85 struct {
86 key_serial_t key;
87 char *key_desc;
88 } key_struct;
89#endif
90 char *kmod_name;
91 struct lsm_ioctlop_audit *op;
92 struct file *file;
93 struct lsm_ibpkey_audit *ibpkey;
94 struct lsm_ibendport_audit *ibendport;
95 } u;
96 /* this union contains LSM specific data */
97 union {
98#ifdef CONFIG_SECURITY_SMACK
99 struct smack_audit_data *smack_audit_data;
100#endif
101#ifdef CONFIG_SECURITY_SELINUX
102 struct selinux_audit_data *selinux_audit_data;
103#endif
104#ifdef CONFIG_SECURITY_APPARMOR
105 struct apparmor_audit_data *apparmor_audit_data;
106#endif
107 }; /* per LSM data pointer union */
108};
109
110#define v4info fam.v4
111#define v6info fam.v6
112
113int ipv4_skb_to_auditdata(struct sk_buff *skb,
114 struct common_audit_data *ad, u8 *proto);
115
116int ipv6_skb_to_auditdata(struct sk_buff *skb,
117 struct common_audit_data *ad, u8 *proto);
118
119void common_lsm_audit(struct common_audit_data *a,
120 void (*pre_audit)(struct audit_buffer *, void *),
121 void (*post_audit)(struct audit_buffer *, void *));
122
123#endif