[mirror_ubuntu-bionic-kernel.git] / include / linux / lsm_audit.h

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Common LSM logging functions
 * Heavily borrowed from selinux/avc.h
 *
 * Author : Etienne BASSET  <etienne.basset@ensta.org>
 *
 * All credits to : Stephen Smalley, <sds@tycho.nsa.gov>
 * 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 <rdma/ib_verbs.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;
};

struct lsm_ibpkey_audit {
	u64	subnet_prefix;
	u16	pkey;
};

struct lsm_ibendport_audit {
	char	dev_name[IB_DEVICE_NAME_MAX];
	u8	port;
};

/* 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
#define LSM_AUDIT_DATA_IBPKEY	13
#define LSM_AUDIT_DATA_IBENDPORT 14
	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;
		struct lsm_ibpkey_audit *ibpkey;
		struct lsm_ibendport_audit *ibendport;
	} 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
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
6e837fb1 EB	2	/*
	3	* Common LSM logging functions
	4	* Heavily borrowed from selinux/avc.h
	5	*
	6	* Author : Etienne BASSET <etienne.basset@ensta.org>
	7	*
5d728015	8	* All credits to : Stephen Smalley, <sds@tycho.nsa.gov>
6e837fb1 EB	9	* All BUGS to : Etienne BASSET <etienne.basset@ensta.org>
	10	*/
	11	#ifndef _LSM_COMMON_LOGGING_
	12	#define _LSM_COMMON_LOGGING_
	13
	14	#include <linux/stddef.h>
	15	#include <linux/errno.h>
	16	#include <linux/kernel.h>
	17	#include <linux/kdev_t.h>
	18	#include <linux/spinlock.h>
	19	#include <linux/init.h>
	20	#include <linux/audit.h>
	21	#include <linux/in6.h>
	22	#include <linux/path.h>
	23	#include <linux/key.h>
	24	#include <linux/skbuff.h>
ab861dfc	25	#include <rdma/ib_verbs.h>
6e837fb1	26
48c62af6 EP	27	struct lsm_network_audit {
	28	int netif;
	29	struct sock *sk;
	30	u16 family;
	31	__be16 dport;
	32	__be16 sport;
	33	union {
	34	struct {
	35	__be32 daddr;
	36	__be32 saddr;
	37	} v4;
	38	struct {
	39	struct in6_addr daddr;
	40	struct in6_addr saddr;
	41	} v6;
	42	} fam;
	43	};
6e837fb1	44
671a2781 JVS	45	struct lsm_ioctlop_audit {
	46	struct path path;
	47	u16 cmd;
	48	};
	49
cfc4d882 DJ	50	struct lsm_ibpkey_audit {
	51	u64 subnet_prefix;
	52	u16 pkey;
	53	};
	54
ab861dfc DJ	55	struct lsm_ibendport_audit {
	56	char dev_name[IB_DEVICE_NAME_MAX];
	57	u8 port;
	58	};
	59
6e837fb1 EB	60	/* Auxiliary data to use in generating the audit record. */
6e837fb1 EB	61	struct common_audit_data {
dd8dbf2e	62	char type;
f48b7399	63	#define LSM_AUDIT_DATA_PATH 1
dd8dbf2e EP	64	#define LSM_AUDIT_DATA_NET 2
	65	#define LSM_AUDIT_DATA_CAP 3
	66	#define LSM_AUDIT_DATA_IPC 4
	67	#define LSM_AUDIT_DATA_TASK 5
	68	#define LSM_AUDIT_DATA_KEY 6
cb84aa9b	69	#define LSM_AUDIT_DATA_NONE 7
dd8dbf2e	70	#define LSM_AUDIT_DATA_KMOD 8
f48b7399	71	#define LSM_AUDIT_DATA_INODE 9
a269434d	72	#define LSM_AUDIT_DATA_DENTRY 10
671a2781	73	#define LSM_AUDIT_DATA_IOCTL_OP 11
43af5de7	74	#define LSM_AUDIT_DATA_FILE 12
cfc4d882	75	#define LSM_AUDIT_DATA_IBPKEY 13
ab861dfc	76	#define LSM_AUDIT_DATA_IBENDPORT 14
6e837fb1	77	union {
f48b7399	78	struct path path;
a269434d	79	struct dentry *dentry;
f48b7399	80	struct inode *inode;
48c62af6	81	struct lsm_network_audit *net;
6e837fb1 EB	82	int cap;
	83	int ipc_id;
	84	struct task_struct *tsk;
	85	#ifdef CONFIG_KEYS
	86	struct {
	87	key_serial_t key;
	88	char *key_desc;
	89	} key_struct;
	90	#endif
dd8dbf2e	91	char *kmod_name;
671a2781	92	struct lsm_ioctlop_audit *op;
43af5de7	93	struct file *file;
cfc4d882	94	struct lsm_ibpkey_audit *ibpkey;
ab861dfc	95	struct lsm_ibendport_audit *ibendport;
6e837fb1	96	} u;
6e837fb1 EB	97	/* this union contains LSM specific data */
6e837fb1 EB	98	union {
65c3f0a2	99	#ifdef CONFIG_SECURITY_SMACK
3b3b0e4f	100	struct smack_audit_data *smack_audit_data;
65c3f0a2 TL	101	#endif
65c3f0a2 TL	102	#ifdef CONFIG_SECURITY_SELINUX
3b3b0e4f	103	struct selinux_audit_data *selinux_audit_data;
67012e82 JJ	104	#endif
67012e82 JJ	105	#ifdef CONFIG_SECURITY_APPARMOR
3b3b0e4f	106	struct apparmor_audit_data *apparmor_audit_data;
65c3f0a2	107	#endif
3b3b0e4f	108	}; /* per LSM data pointer union */
6e837fb1 EB	109	};
	110
	111	#define v4info fam.v4
	112	#define v6info fam.v6
	113
	114	int ipv4_skb_to_auditdata(struct sk_buff *skb,
	115	struct common_audit_data ad, u8 proto);
	116
	117	int ipv6_skb_to_auditdata(struct sk_buff *skb,
	118	struct common_audit_data ad, u8 proto);
	119
b61c37f5 LT	120	void common_lsm_audit(struct common_audit_data *a,
	121	void (pre_audit)(struct audit_buffer , void *),
	122	void (post_audit)(struct audit_buffer , void *));
6e837fb1 EB	123
6e837fb1 EB	124	#endif