[net-next-2.6.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_FS	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
	struct task_struct *tsk;
	union 	{
		struct {
			struct path path;
			struct inode *inode;
		} fs;
		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 EP	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
cb84aa9b	36	#define LSM_AUDIT_DATA_NONE 7
dd8dbf2e	37	#define LSM_AUDIT_DATA_KMOD 8
6e837fb1 EB	38	struct task_struct *tsk;
	39	union {
	40	struct {
	41	struct path path;
	42	struct inode *inode;
	43	} fs;
	44	struct {
	45	int netif;
	46	struct sock *sk;
	47	u16 family;
	48	__be16 dport;
	49	__be16 sport;
	50	union {
	51	struct {
	52	__be32 daddr;
	53	__be32 saddr;
	54	} v4;
	55	struct {
	56	struct in6_addr daddr;
	57	struct in6_addr saddr;
	58	} v6;
	59	} fam;
	60	} net;
	61	int cap;
	62	int ipc_id;
	63	struct task_struct *tsk;
	64	#ifdef CONFIG_KEYS
	65	struct {
	66	key_serial_t key;
	67	char *key_desc;
	68	} key_struct;
	69	#endif
dd8dbf2e	70	char *kmod_name;
6e837fb1	71	} u;
6e837fb1 EB	72	/* this union contains LSM specific data */
6e837fb1 EB	73	union {
65c3f0a2	74	#ifdef CONFIG_SECURITY_SMACK
6e837fb1 EB	75	/* SMACK data */
6e837fb1 EB	76	struct smack_audit_data {
ed5215a2	77	const char *function;
6e837fb1 EB	78	char *subject;
	79	char *object;
	80	char *request;
	81	int result;
	82	} smack_audit_data;
65c3f0a2 TL	83	#endif
65c3f0a2 TL	84	#ifdef CONFIG_SECURITY_SELINUX
6e837fb1 EB	85	/* SELinux data */
	86	struct {
	87	u32 ssid;
	88	u32 tsid;
	89	u16 tclass;
	90	u32 requested;
	91	u32 audited;
2bf49690	92	u32 denied;
b782e0a6 EP	93	/*
	94	* auditdeny is a bit tricky and unintuitive. See the
	95	* comments in avc.c for it's meaning and usage.
	96	*/
	97	u32 auditdeny;
6e837fb1 EB	98	struct av_decision *avd;
	99	int result;
	100	} selinux_audit_data;
67012e82 JJ	101	#endif
	102	#ifdef CONFIG_SECURITY_APPARMOR
	103	struct {
	104	int error;
	105	int op;
	106	int type;
	107	void *profile;
	108	const char *name;
	109	const char *info;
	110	union {
	111	void *target;
	112	struct {
	113	long pos;
	114	void *target;
	115	} iface;
	116	struct {
	117	int rlim;
	118	unsigned long max;
	119	} rlim;
	120	struct {
	121	const char *target;
	122	u32 request;
	123	u32 denied;
	124	uid_t ouid;
	125	} fs;
	126	};
	127	} apparmor_audit_data;
65c3f0a2	128	#endif
d4131ded	129	};
6e837fb1 EB	130	/* these callback will be implemented by a specific LSM */
	131	void (lsm_pre_audit)(struct audit_buffer , void *);
	132	void (lsm_post_audit)(struct audit_buffer , void *);
	133	};
	134
	135	#define v4info fam.v4
	136	#define v6info fam.v6
	137
	138	int ipv4_skb_to_auditdata(struct sk_buff *skb,
	139	struct common_audit_data ad, u8 proto);
	140
	141	int ipv6_skb_to_auditdata(struct sk_buff *skb,
	142	struct common_audit_data ad, u8 proto);
	143
	144	/* Initialize an LSM audit data structure. */
	145	#define COMMON_AUDIT_DATA_INIT(_d, _t) \
	146	{ memset((_d), 0, sizeof(struct common_audit_data)); \
ed5215a2	147	(_d)->type = LSM_AUDIT_DATA_##_t; }
6e837fb1 EB	148
	149	void common_lsm_audit(struct common_audit_data *a);
	150
	151	#endif