[mirror_ubuntu-zesty-kernel.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>

struct lsm_network_audit {
	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;
};

struct lsm_ioctlop_audit {
	struct path path;
	u16 cmd;
};

/* 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
#define LSM_AUDIT_DATA_IOCTL_OP	11
#define LSM_AUDIT_DATA_FILE	12
	union 	{
		struct path path;
		struct dentry *dentry;
		struct inode *inode;
		struct lsm_network_audit *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;
		struct lsm_ioctlop_audit *op;
		struct file *file;
	} u;
	/* this union contains LSM specific data */
	union {
#ifdef CONFIG_SECURITY_SMACK
		struct smack_audit_data *smack_audit_data;
#endif
#ifdef CONFIG_SECURITY_SELINUX
		struct selinux_audit_data *selinux_audit_data;
#endif
#ifdef CONFIG_SECURITY_APPARMOR
		struct apparmor_audit_data *apparmor_audit_data;
#endif
	}; /* per LSM data pointer union */
};

#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);

void common_lsm_audit(struct common_audit_data *a,
	void (*pre_audit)(struct audit_buffer *, void *),
	void (*post_audit)(struct audit_buffer *, void *));

#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>
6e837fb1	24
48c62af6 EP	25	struct lsm_network_audit {
	26	int netif;
	27	struct sock *sk;
	28	u16 family;
	29	__be16 dport;
	30	__be16 sport;
	31	union {
	32	struct {
	33	__be32 daddr;
	34	__be32 saddr;
	35	} v4;
	36	struct {
	37	struct in6_addr daddr;
	38	struct in6_addr saddr;
	39	} v6;
	40	} fam;
	41	};
6e837fb1	42
671a2781 JVS	43	struct lsm_ioctlop_audit {
	44	struct path path;
	45	u16 cmd;
	46	};
	47
6e837fb1 EB	48	/* Auxiliary data to use in generating the audit record. */
6e837fb1 EB	49	struct common_audit_data {
dd8dbf2e	50	char type;
f48b7399	51	#define LSM_AUDIT_DATA_PATH 1
dd8dbf2e EP	52	#define LSM_AUDIT_DATA_NET 2
	53	#define LSM_AUDIT_DATA_CAP 3
	54	#define LSM_AUDIT_DATA_IPC 4
	55	#define LSM_AUDIT_DATA_TASK 5
	56	#define LSM_AUDIT_DATA_KEY 6
cb84aa9b	57	#define LSM_AUDIT_DATA_NONE 7
dd8dbf2e	58	#define LSM_AUDIT_DATA_KMOD 8
f48b7399	59	#define LSM_AUDIT_DATA_INODE 9
a269434d	60	#define LSM_AUDIT_DATA_DENTRY 10
671a2781	61	#define LSM_AUDIT_DATA_IOCTL_OP 11
43af5de7	62	#define LSM_AUDIT_DATA_FILE 12
6e837fb1	63	union {
f48b7399	64	struct path path;
a269434d	65	struct dentry *dentry;
f48b7399	66	struct inode *inode;
48c62af6	67	struct lsm_network_audit *net;
6e837fb1 EB	68	int cap;
	69	int ipc_id;
	70	struct task_struct *tsk;
	71	#ifdef CONFIG_KEYS
	72	struct {
	73	key_serial_t key;
	74	char *key_desc;
	75	} key_struct;
	76	#endif
dd8dbf2e	77	char *kmod_name;
671a2781	78	struct lsm_ioctlop_audit *op;
43af5de7	79	struct file *file;
6e837fb1	80	} u;
6e837fb1 EB	81	/* this union contains LSM specific data */
6e837fb1 EB	82	union {
65c3f0a2	83	#ifdef CONFIG_SECURITY_SMACK
3b3b0e4f	84	struct smack_audit_data *smack_audit_data;
65c3f0a2 TL	85	#endif
65c3f0a2 TL	86	#ifdef CONFIG_SECURITY_SELINUX
3b3b0e4f	87	struct selinux_audit_data *selinux_audit_data;
67012e82 JJ	88	#endif
67012e82 JJ	89	#ifdef CONFIG_SECURITY_APPARMOR
3b3b0e4f	90	struct apparmor_audit_data *apparmor_audit_data;
65c3f0a2	91	#endif
3b3b0e4f	92	}; /* per LSM data pointer union */
6e837fb1 EB	93	};
	94
	95	#define v4info fam.v4
	96	#define v6info fam.v6
	97
	98	int ipv4_skb_to_auditdata(struct sk_buff *skb,
	99	struct common_audit_data ad, u8 proto);
	100
	101	int ipv6_skb_to_auditdata(struct sk_buff *skb,
	102	struct common_audit_data ad, u8 proto);
	103
b61c37f5 LT	104	void common_lsm_audit(struct common_audit_data *a,
	105	void (pre_audit)(struct audit_buffer , void *),
	106	void (post_audit)(struct audit_buffer , void *));
6e837fb1 EB	107
6e837fb1 EB	108	#endif