[linux-2.6-block.git] / include / linux / lsm_audit.h

/*
 * Common LSM logging functions
 * Heavily borrowed from selinux/avc.h
 *
 * Author : Etienne BASSET  <etienne.basset@ensta.org>
 *
 * All credits to : Stephen Smalley, <sds@epoch.ncsc.mil>
 * All BUGS to : Etienne BASSET  <etienne.basset@ensta.org>
 */
#ifndef _LSM_COMMON_LOGGING_
#define _LSM_COMMON_LOGGING_

#include <linux/stddef.h>
#include <linux/errno.h>
#include <linux/kernel.h>
#include <linux/kdev_t.h>
#include <linux/spinlock.h>
#include <linux/init.h>
#include <linux/audit.h>
#include <linux/in6.h>
#include <linux/path.h>
#include <linux/key.h>
#include <linux/skbuff.h>
#include <asm/system.h>


/* Auxiliary data to use in generating the audit record. */
struct common_audit_data {
	char type;
#define LSM_AUDIT_DATA_PATH	1
#define LSM_AUDIT_DATA_NET	2
#define LSM_AUDIT_DATA_CAP	3
#define LSM_AUDIT_DATA_IPC	4
#define LSM_AUDIT_DATA_TASK	5
#define LSM_AUDIT_DATA_KEY	6
#define LSM_AUDIT_DATA_NONE	7
#define LSM_AUDIT_DATA_KMOD	8
#define LSM_AUDIT_DATA_INODE	9
#define LSM_AUDIT_DATA_DENTRY	10
	struct task_struct *tsk;
	union 	{
		struct path path;
		struct dentry *dentry;
		struct inode *inode;
		struct {
			int netif;
			struct sock *sk;
			u16 family;
			__be16 dport;
			__be16 sport;
			union {
				struct {
					__be32 daddr;
					__be32 saddr;
				} v4;
				struct {
					struct in6_addr daddr;
					struct in6_addr saddr;
				} v6;
			} fam;
		} net;
		int cap;
		int ipc_id;
		struct task_struct *tsk;
#ifdef CONFIG_KEYS
		struct {
			key_serial_t key;
			char *key_desc;
		} key_struct;
#endif
		char *kmod_name;
	} u;
	/* this union contains LSM specific data */
	union {
#ifdef CONFIG_SECURITY_SMACK
		/* SMACK data */
		struct smack_audit_data {
			const char *function;
			char *subject;
			char *object;
			char *request;
			int result;
		} smack_audit_data;
#endif
#ifdef CONFIG_SECURITY_SELINUX
		/* SELinux data */
		struct {
			u32 ssid;
			u32 tsid;
			u16 tclass;
			u32 requested;
			u32 audited;
			u32 denied;
			/*
			 * auditdeny is a bit tricky and unintuitive.  See the
			 * comments in avc.c for it's meaning and usage.
			 */
			u32 auditdeny;
			struct av_decision *avd;
			int result;
		} selinux_audit_data;
#endif
#ifdef CONFIG_SECURITY_APPARMOR
		struct {
			int error;
			int op;
			int type;
			void *profile;
			const char *name;
			const char *info;
			union {
				void *target;
				struct {
					long pos;
					void *target;
				} iface;
				struct {
					int rlim;
					unsigned long max;
				} rlim;
				struct {
					const char *target;
					u32 request;
					u32 denied;
					uid_t ouid;
				} fs;
			};
		} apparmor_audit_data;
#endif
	};
	/* these callback will be implemented by a specific LSM */
	void (*lsm_pre_audit)(struct audit_buffer *, void *);
	void (*lsm_post_audit)(struct audit_buffer *, void *);
};

#define v4info fam.v4
#define v6info fam.v6

int ipv4_skb_to_auditdata(struct sk_buff *skb,
		struct common_audit_data *ad, u8 *proto);

int ipv6_skb_to_auditdata(struct sk_buff *skb,
		struct common_audit_data *ad, u8 *proto);

/* Initialize an LSM audit data structure. */
#define COMMON_AUDIT_DATA_INIT(_d, _t) \
	{ memset((_d), 0, sizeof(struct common_audit_data)); \
	 (_d)->type = LSM_AUDIT_DATA_##_t; }

void common_lsm_audit(struct common_audit_data *a);

#endif
Commit	Line	Data
6e837fb1 EB	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 {
dd8dbf2e	29	char type;
f48b7399	30	#define LSM_AUDIT_DATA_PATH 1
dd8dbf2e EP	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
cb84aa9b	36	#define LSM_AUDIT_DATA_NONE 7
dd8dbf2e	37	#define LSM_AUDIT_DATA_KMOD 8
f48b7399	38	#define LSM_AUDIT_DATA_INODE 9
a269434d	39	#define LSM_AUDIT_DATA_DENTRY 10
6e837fb1 EB	40	struct task_struct *tsk;
6e837fb1 EB	41	union {
f48b7399	42	struct path path;
a269434d	43	struct dentry *dentry;
f48b7399	44	struct inode *inode;
6e837fb1 EB	45	struct {
	46	int netif;
	47	struct sock *sk;
	48	u16 family;
	49	__be16 dport;
	50	__be16 sport;
	51	union {
	52	struct {
	53	__be32 daddr;
	54	__be32 saddr;
	55	} v4;
	56	struct {
	57	struct in6_addr daddr;
	58	struct in6_addr saddr;
	59	} v6;
	60	} fam;
	61	} net;
	62	int cap;
	63	int ipc_id;
	64	struct task_struct *tsk;
	65	#ifdef CONFIG_KEYS
	66	struct {
	67	key_serial_t key;
	68	char *key_desc;
	69	} key_struct;
	70	#endif
dd8dbf2e	71	char *kmod_name;
6e837fb1	72	} u;
6e837fb1 EB	73	/* this union contains LSM specific data */
6e837fb1 EB	74	union {
65c3f0a2	75	#ifdef CONFIG_SECURITY_SMACK
6e837fb1 EB	76	/* SMACK data */
6e837fb1 EB	77	struct smack_audit_data {
ed5215a2	78	const char *function;
6e837fb1 EB	79	char *subject;
	80	char *object;
	81	char *request;
	82	int result;
	83	} smack_audit_data;
65c3f0a2 TL	84	#endif
65c3f0a2 TL	85	#ifdef CONFIG_SECURITY_SELINUX
6e837fb1 EB	86	/* SELinux data */
	87	struct {
	88	u32 ssid;
	89	u32 tsid;
	90	u16 tclass;
	91	u32 requested;
	92	u32 audited;
2bf49690	93	u32 denied;
b782e0a6 EP	94	/*
	95	* auditdeny is a bit tricky and unintuitive. See the
	96	* comments in avc.c for it's meaning and usage.
	97	*/
	98	u32 auditdeny;
6e837fb1 EB	99	struct av_decision *avd;
	100	int result;
	101	} selinux_audit_data;
67012e82 JJ	102	#endif
	103	#ifdef CONFIG_SECURITY_APPARMOR
	104	struct {
	105	int error;
	106	int op;
	107	int type;
	108	void *profile;
	109	const char *name;
	110	const char *info;
	111	union {
	112	void *target;
	113	struct {
	114	long pos;
	115	void *target;
	116	} iface;
	117	struct {
	118	int rlim;
	119	unsigned long max;
	120	} rlim;
	121	struct {
	122	const char *target;
	123	u32 request;
	124	u32 denied;
	125	uid_t ouid;
	126	} fs;
	127	};
	128	} apparmor_audit_data;
65c3f0a2	129	#endif
d4131ded	130	};
6e837fb1 EB	131	/* these callback will be implemented by a specific LSM */
	132	void (lsm_pre_audit)(struct audit_buffer , void *);
	133	void (lsm_post_audit)(struct audit_buffer , void *);
	134	};
	135
	136	#define v4info fam.v4
	137	#define v6info fam.v6
	138
	139	int ipv4_skb_to_auditdata(struct sk_buff *skb,
	140	struct common_audit_data ad, u8 proto);
	141
	142	int ipv6_skb_to_auditdata(struct sk_buff *skb,
	143	struct common_audit_data ad, u8 proto);
	144
	145	/* Initialize an LSM audit data structure. */
	146	#define COMMON_AUDIT_DATA_INIT(_d, _t) \
	147	{ memset((_d), 0, sizeof(struct common_audit_data)); \
ed5215a2	148	(_d)->type = LSM_AUDIT_DATA_##_t; }
6e837fb1 EB	149
	150	void common_lsm_audit(struct common_audit_data *a);
	151
	152	#endif