[deliverable/linux.git] / include / uapi / linux / xfrm.h

#ifndef _LINUX_XFRM_H
#define _LINUX_XFRM_H

#include <linux/types.h>

/* All of the structures in this file may not change size as they are
 * passed into the kernel from userspace via netlink sockets.
 */

/* Structure to encapsulate addresses. I do not want to use
 * "standard" structure. My apologies.
 */
typedef union {
	__be32		a4;
	__be32		a6[4];
} xfrm_address_t;

/* Ident of a specific xfrm_state. It is used on input to lookup
 * the state by (spi,daddr,ah/esp) or to store information about
 * spi, protocol and tunnel address on output.
 */
struct xfrm_id {
	xfrm_address_t	daddr;
	__be32		spi;
	__u8		proto;
};

struct xfrm_sec_ctx {
	__u8	ctx_doi;
	__u8	ctx_alg;
	__u16	ctx_len;
	__u32	ctx_sid;
	char	ctx_str[0];
};

/* Security Context Domains of Interpretation */
#define XFRM_SC_DOI_RESERVED 0
#define XFRM_SC_DOI_LSM 1

/* Security Context Algorithms */
#define XFRM_SC_ALG_RESERVED 0
#define XFRM_SC_ALG_SELINUX 1

/* Selector, used as selector both on policy rules (SPD) and SAs. */

struct xfrm_selector {
	xfrm_address_t	daddr;
	xfrm_address_t	saddr;
	__be16	dport;
	__be16	dport_mask;
	__be16	sport;
	__be16	sport_mask;
	__u16	family;
	__u8	prefixlen_d;
	__u8	prefixlen_s;
	__u8	proto;
	int	ifindex;
	__kernel_uid32_t	user;
};

#define XFRM_INF (~(__u64)0)

struct xfrm_lifetime_cfg {
	__u64	soft_byte_limit;
	__u64	hard_byte_limit;
	__u64	soft_packet_limit;
	__u64	hard_packet_limit;
	__u64	soft_add_expires_seconds;
	__u64	hard_add_expires_seconds;
	__u64	soft_use_expires_seconds;
	__u64	hard_use_expires_seconds;
};

struct xfrm_lifetime_cur {
	__u64	bytes;
	__u64	packets;
	__u64	add_time;
	__u64	use_time;
};

struct xfrm_replay_state {
	__u32	oseq;
	__u32	seq;
	__u32	bitmap;
};

#define XFRMA_REPLAY_ESN_MAX	4096

struct xfrm_replay_state_esn {
	unsigned int	bmp_len;
	__u32		oseq;
	__u32		seq;
	__u32		oseq_hi;
	__u32		seq_hi;
	__u32		replay_window;
	__u32		bmp[0];
};

struct xfrm_algo {
	char		alg_name[64];
	unsigned int	alg_key_len;    /* in bits */
	char		alg_key[0];
};

struct xfrm_algo_auth {
	char		alg_name[64];
	unsigned int	alg_key_len;    /* in bits */
	unsigned int	alg_trunc_len;  /* in bits */
	char		alg_key[0];
};

struct xfrm_algo_aead {
	char		alg_name[64];
	unsigned int	alg_key_len;	/* in bits */
	unsigned int	alg_icv_len;	/* in bits */
	char		alg_key[0];
};

struct xfrm_stats {
	__u32	replay_window;
	__u32	replay;
	__u32	integrity_failed;
};

enum {
	XFRM_POLICY_TYPE_MAIN	= 0,
	XFRM_POLICY_TYPE_SUB	= 1,
	XFRM_POLICY_TYPE_MAX	= 2,
	XFRM_POLICY_TYPE_ANY	= 255
};

enum {
	XFRM_POLICY_IN	= 0,
	XFRM_POLICY_OUT	= 1,
	XFRM_POLICY_FWD	= 2,
	XFRM_POLICY_MASK = 3,
	XFRM_POLICY_MAX	= 3
};

enum {
	XFRM_SHARE_ANY,		/* No limitations */
	XFRM_SHARE_SESSION,	/* For this session only */
	XFRM_SHARE_USER,	/* For this user only */
	XFRM_SHARE_UNIQUE	/* Use once */
};

#define XFRM_MODE_TRANSPORT 0
#define XFRM_MODE_TUNNEL 1
#define XFRM_MODE_ROUTEOPTIMIZATION 2
#define XFRM_MODE_IN_TRIGGER 3
#define XFRM_MODE_BEET 4
#define XFRM_MODE_MAX 5

/* Netlink configuration messages.  */
enum {
	XFRM_MSG_BASE = 0x10,

	XFRM_MSG_NEWSA = 0x10,
#define XFRM_MSG_NEWSA XFRM_MSG_NEWSA
	XFRM_MSG_DELSA,
#define XFRM_MSG_DELSA XFRM_MSG_DELSA
	XFRM_MSG_GETSA,
#define XFRM_MSG_GETSA XFRM_MSG_GETSA

	XFRM_MSG_NEWPOLICY,
#define XFRM_MSG_NEWPOLICY XFRM_MSG_NEWPOLICY
	XFRM_MSG_DELPOLICY,
#define XFRM_MSG_DELPOLICY XFRM_MSG_DELPOLICY
	XFRM_MSG_GETPOLICY,
#define XFRM_MSG_GETPOLICY XFRM_MSG_GETPOLICY

	XFRM_MSG_ALLOCSPI,
#define XFRM_MSG_ALLOCSPI XFRM_MSG_ALLOCSPI
	XFRM_MSG_ACQUIRE,
#define XFRM_MSG_ACQUIRE XFRM_MSG_ACQUIRE
	XFRM_MSG_EXPIRE,
#define XFRM_MSG_EXPIRE XFRM_MSG_EXPIRE

	XFRM_MSG_UPDPOLICY,
#define XFRM_MSG_UPDPOLICY XFRM_MSG_UPDPOLICY
	XFRM_MSG_UPDSA,
#define XFRM_MSG_UPDSA XFRM_MSG_UPDSA

	XFRM_MSG_POLEXPIRE,
#define XFRM_MSG_POLEXPIRE XFRM_MSG_POLEXPIRE

	XFRM_MSG_FLUSHSA,
#define XFRM_MSG_FLUSHSA XFRM_MSG_FLUSHSA
	XFRM_MSG_FLUSHPOLICY,
#define XFRM_MSG_FLUSHPOLICY XFRM_MSG_FLUSHPOLICY

	XFRM_MSG_NEWAE,
#define XFRM_MSG_NEWAE XFRM_MSG_NEWAE
	XFRM_MSG_GETAE,
#define XFRM_MSG_GETAE XFRM_MSG_GETAE

	XFRM_MSG_REPORT,
#define XFRM_MSG_REPORT XFRM_MSG_REPORT

	XFRM_MSG_MIGRATE,
#define XFRM_MSG_MIGRATE XFRM_MSG_MIGRATE

	XFRM_MSG_NEWSADINFO,
#define XFRM_MSG_NEWSADINFO XFRM_MSG_NEWSADINFO
	XFRM_MSG_GETSADINFO,
#define XFRM_MSG_GETSADINFO XFRM_MSG_GETSADINFO

	XFRM_MSG_NEWSPDINFO,
#define XFRM_MSG_NEWSPDINFO XFRM_MSG_NEWSPDINFO
	XFRM_MSG_GETSPDINFO,
#define XFRM_MSG_GETSPDINFO XFRM_MSG_GETSPDINFO

	XFRM_MSG_MAPPING,
#define XFRM_MSG_MAPPING XFRM_MSG_MAPPING
	__XFRM_MSG_MAX
};
#define XFRM_MSG_MAX (__XFRM_MSG_MAX - 1)

#define XFRM_NR_MSGTYPES (XFRM_MSG_MAX + 1 - XFRM_MSG_BASE)

/*
 * Generic LSM security context for comunicating to user space
 * NOTE: Same format as sadb_x_sec_ctx
 */
struct xfrm_user_sec_ctx {
	__u16			len;
	__u16			exttype;
	__u8			ctx_alg;  /* LSMs: e.g., selinux == 1 */
	__u8			ctx_doi;
	__u16			ctx_len;
};

struct xfrm_user_tmpl {
	struct xfrm_id		id;
	__u16			family;
	xfrm_address_t		saddr;
	__u32			reqid;
	__u8			mode;
	__u8			share;
	__u8			optional;
	__u32			aalgos;
	__u32			ealgos;
	__u32			calgos;
};

struct xfrm_encap_tmpl {
	__u16		encap_type;
	__be16		encap_sport;
	__be16		encap_dport;
	xfrm_address_t	encap_oa;
};

/* AEVENT flags  */
enum xfrm_ae_ftype_t {
	XFRM_AE_UNSPEC,
	XFRM_AE_RTHR=1,	/* replay threshold*/
	XFRM_AE_RVAL=2, /* replay value */
	XFRM_AE_LVAL=4, /* lifetime value */
	XFRM_AE_ETHR=8, /* expiry timer threshold */
	XFRM_AE_CR=16, /* Event cause is replay update */
	XFRM_AE_CE=32, /* Event cause is timer expiry */
	XFRM_AE_CU=64, /* Event cause is policy update */
	__XFRM_AE_MAX

#define XFRM_AE_MAX (__XFRM_AE_MAX - 1)
};

struct xfrm_userpolicy_type {
	__u8		type;
	__u16		reserved1;
	__u8		reserved2;
};

/* Netlink message attributes.  */
enum xfrm_attr_type_t {
	XFRMA_UNSPEC,
	XFRMA_ALG_AUTH,		/* struct xfrm_algo */
	XFRMA_ALG_CRYPT,	/* struct xfrm_algo */
	XFRMA_ALG_COMP,		/* struct xfrm_algo */
	XFRMA_ENCAP,		/* struct xfrm_algo + struct xfrm_encap_tmpl */
	XFRMA_TMPL,		/* 1 or more struct xfrm_user_tmpl */
	XFRMA_SA,		/* struct xfrm_usersa_info  */
	XFRMA_POLICY,		/*struct xfrm_userpolicy_info */
	XFRMA_SEC_CTX,		/* struct xfrm_sec_ctx */
	XFRMA_LTIME_VAL,
	XFRMA_REPLAY_VAL,
	XFRMA_REPLAY_THRESH,
	XFRMA_ETIMER_THRESH,
	XFRMA_SRCADDR,		/* xfrm_address_t */
	XFRMA_COADDR,		/* xfrm_address_t */
	XFRMA_LASTUSED,		/* unsigned long  */
	XFRMA_POLICY_TYPE,	/* struct xfrm_userpolicy_type */
	XFRMA_MIGRATE,
	XFRMA_ALG_AEAD,		/* struct xfrm_algo_aead */
	XFRMA_KMADDRESS,        /* struct xfrm_user_kmaddress */
	XFRMA_ALG_AUTH_TRUNC,	/* struct xfrm_algo_auth */
	XFRMA_MARK,		/* struct xfrm_mark */
	XFRMA_TFCPAD,		/* __u32 */
	XFRMA_REPLAY_ESN_VAL,	/* struct xfrm_replay_esn */
	XFRMA_SA_EXTRA_FLAGS,	/* __u32 */
	XFRMA_PROTO,		/* __u8 */
	XFRMA_ADDRESS_FILTER,	/* struct xfrm_address_filter */
	__XFRMA_MAX

#define XFRMA_MAX (__XFRMA_MAX - 1)
};

struct xfrm_mark {
	__u32           v; /* value */
	__u32           m; /* mask */
};

enum xfrm_sadattr_type_t {
	XFRMA_SAD_UNSPEC,
	XFRMA_SAD_CNT,
	XFRMA_SAD_HINFO,
	__XFRMA_SAD_MAX

#define XFRMA_SAD_MAX (__XFRMA_SAD_MAX - 1)
};

struct xfrmu_sadhinfo {
	__u32 sadhcnt; /* current hash bkts */
	__u32 sadhmcnt; /* max allowed hash bkts */
};

enum xfrm_spdattr_type_t {
	XFRMA_SPD_UNSPEC,
	XFRMA_SPD_INFO,
	XFRMA_SPD_HINFO,
	__XFRMA_SPD_MAX

#define XFRMA_SPD_MAX (__XFRMA_SPD_MAX - 1)
};

struct xfrmu_spdinfo {
	__u32 incnt;
	__u32 outcnt;
	__u32 fwdcnt;
	__u32 inscnt;
	__u32 outscnt;
	__u32 fwdscnt;
};

struct xfrmu_spdhinfo {
	__u32 spdhcnt;
	__u32 spdhmcnt;
};

struct xfrm_usersa_info {
	struct xfrm_selector		sel;
	struct xfrm_id			id;
	xfrm_address_t			saddr;
	struct xfrm_lifetime_cfg	lft;
	struct xfrm_lifetime_cur	curlft;
	struct xfrm_stats		stats;
	__u32				seq;
	__u32				reqid;
	__u16				family;
	__u8				mode;		/* XFRM_MODE_xxx */
	__u8				replay_window;
	__u8				flags;
#define XFRM_STATE_NOECN	1
#define XFRM_STATE_DECAP_DSCP	2
#define XFRM_STATE_NOPMTUDISC	4
#define XFRM_STATE_WILDRECV	8
#define XFRM_STATE_ICMP		16
#define XFRM_STATE_AF_UNSPEC	32
#define XFRM_STATE_ALIGN4	64
#define XFRM_STATE_ESN		128
};

#define XFRM_SA_XFLAG_DONT_ENCAP_DSCP	1

struct xfrm_usersa_id {
	xfrm_address_t			daddr;
	__be32				spi;
	__u16				family;
	__u8				proto;
};

struct xfrm_aevent_id {
	struct xfrm_usersa_id		sa_id;
	xfrm_address_t			saddr;
	__u32				flags;
	__u32				reqid;
};

struct xfrm_userspi_info {
	struct xfrm_usersa_info		info;
	__u32				min;
	__u32				max;
};

struct xfrm_userpolicy_info {
	struct xfrm_selector		sel;
	struct xfrm_lifetime_cfg	lft;
	struct xfrm_lifetime_cur	curlft;
	__u32				priority;
	__u32				index;
	__u8				dir;
	__u8				action;
#define XFRM_POLICY_ALLOW	0
#define XFRM_POLICY_BLOCK	1
	__u8				flags;
#define XFRM_POLICY_LOCALOK	1	/* Allow user to override global policy */
	/* Automatically expand selector to include matching ICMP payloads. */
#define XFRM_POLICY_ICMP	2
	__u8				share;
};

struct xfrm_userpolicy_id {
	struct xfrm_selector		sel;
	__u32				index;
	__u8				dir;
};

struct xfrm_user_acquire {
	struct xfrm_id			id;
	xfrm_address_t			saddr;
	struct xfrm_selector		sel;
	struct xfrm_userpolicy_info	policy;
	__u32				aalgos;
	__u32				ealgos;
	__u32				calgos;
	__u32				seq;
};

struct xfrm_user_expire {
	struct xfrm_usersa_info		state;
	__u8				hard;
};

struct xfrm_user_polexpire {
	struct xfrm_userpolicy_info	pol;
	__u8				hard;
};

struct xfrm_usersa_flush {
	__u8				proto;
};

struct xfrm_user_report {
	__u8				proto;
	struct xfrm_selector		sel;
};

/* Used by MIGRATE to pass addresses IKE should use to perform
 * SA negotiation with the peer */
struct xfrm_user_kmaddress {
	xfrm_address_t                  local;
	xfrm_address_t                  remote;
	__u32				reserved;
	__u16				family;
};

struct xfrm_user_migrate {
	xfrm_address_t			old_daddr;
	xfrm_address_t			old_saddr;
	xfrm_address_t			new_daddr;
	xfrm_address_t			new_saddr;
	__u8				proto;
	__u8				mode;
	__u16				reserved;
	__u32				reqid;
	__u16				old_family;
	__u16				new_family;
};

struct xfrm_user_mapping {
	struct xfrm_usersa_id		id;
	__u32				reqid;
	xfrm_address_t			old_saddr;
	xfrm_address_t			new_saddr;
	__be16				old_sport;
	__be16				new_sport;
};

struct xfrm_address_filter {
	xfrm_address_t			saddr;
	xfrm_address_t			daddr;
	__u16				family;
	__u8				splen;
	__u8				dplen;
};

#ifndef __KERNEL__
/* backwards compatibility for userspace */
#define XFRMGRP_ACQUIRE		1
#define XFRMGRP_EXPIRE		2
#define XFRMGRP_SA		4
#define XFRMGRP_POLICY		8
#define XFRMGRP_REPORT		0x20
#endif

enum xfrm_nlgroups {
	XFRMNLGRP_NONE,
#define XFRMNLGRP_NONE		XFRMNLGRP_NONE
	XFRMNLGRP_ACQUIRE,
#define XFRMNLGRP_ACQUIRE	XFRMNLGRP_ACQUIRE
	XFRMNLGRP_EXPIRE,
#define XFRMNLGRP_EXPIRE	XFRMNLGRP_EXPIRE
	XFRMNLGRP_SA,
#define XFRMNLGRP_SA		XFRMNLGRP_SA
	XFRMNLGRP_POLICY,
#define XFRMNLGRP_POLICY	XFRMNLGRP_POLICY
	XFRMNLGRP_AEVENTS,
#define XFRMNLGRP_AEVENTS	XFRMNLGRP_AEVENTS
	XFRMNLGRP_REPORT,
#define XFRMNLGRP_REPORT	XFRMNLGRP_REPORT
	XFRMNLGRP_MIGRATE,
#define XFRMNLGRP_MIGRATE	XFRMNLGRP_MIGRATE
	XFRMNLGRP_MAPPING,
#define XFRMNLGRP_MAPPING	XFRMNLGRP_MAPPING
	__XFRMNLGRP_MAX
};
#define XFRMNLGRP_MAX	(__XFRMNLGRP_MAX - 1)

#endif /* _LINUX_XFRM_H */
Commit	Line	Data
1da177e4 LT	1	#ifndef _LINUX_XFRM_H
	2	#define _LINUX_XFRM_H
	3
	4	#include <linux/types.h>
	5
	6	/* All of the structures in this file may not change size as they are
	7	* passed into the kernel from userspace via netlink sockets.
	8	*/
	9
	10	/* Structure to encapsulate addresses. I do not want to use
	11	* "standard" structure. My apologies.
	12	*/
d94d9fee	13	typedef union {
737b5761 AV	14	__be32 a4;
737b5761 AV	15	__be32 a6[4];
1da177e4 LT	16	} xfrm_address_t;
	17
	18	/* Ident of a specific xfrm_state. It is used on input to lookup
	19	* the state by (spi,daddr,ah/esp) or to store information about
	20	* spi, protocol and tunnel address on output.
	21	*/
d94d9fee	22	struct xfrm_id {
1da177e4	23	xfrm_address_t daddr;
e037c39b	24	__be32 spi;
1da177e4 LT	25	__u8 proto;
	26	};
	27
df71837d TJ	28	struct xfrm_sec_ctx {
	29	__u8 ctx_doi;
	30	__u8 ctx_alg;
	31	__u16 ctx_len;
	32	__u32 ctx_sid;
	33	char ctx_str[0];
	34	};
	35
	36	/* Security Context Domains of Interpretation */
	37	#define XFRM_SC_DOI_RESERVED 0
	38	#define XFRM_SC_DOI_LSM 1
	39
	40	/* Security Context Algorithms */
	41	#define XFRM_SC_ALG_RESERVED 0
	42	#define XFRM_SC_ALG_SELINUX 1
	43
1da177e4 LT	44	/* Selector, used as selector both on policy rules (SPD) and SAs. */
1da177e4 LT	45
d94d9fee	46	struct xfrm_selector {
1da177e4 LT	47	xfrm_address_t daddr;
1da177e4 LT	48	xfrm_address_t saddr;
8f83f23e AV	49	__be16 dport;
	50	__be16 dport_mask;
	51	__be16 sport;
	52	__be16 sport_mask;
1da177e4 LT	53	__u16 family;
	54	__u8 prefixlen_d;
	55	__u8 prefixlen_s;
	56	__u8 proto;
	57	int ifindex;
85efde6f	58	__kernel_uid32_t user;
1da177e4 LT	59	};
	60
	61	#define XFRM_INF (~(__u64)0)
	62
d94d9fee	63	struct xfrm_lifetime_cfg {
1da177e4 LT	64	__u64 soft_byte_limit;
	65	__u64 hard_byte_limit;
	66	__u64 soft_packet_limit;
	67	__u64 hard_packet_limit;
	68	__u64 soft_add_expires_seconds;
	69	__u64 hard_add_expires_seconds;
	70	__u64 soft_use_expires_seconds;
	71	__u64 hard_use_expires_seconds;
	72	};
	73
d94d9fee	74	struct xfrm_lifetime_cur {
1da177e4 LT	75	__u64 bytes;
	76	__u64 packets;
	77	__u64 add_time;
	78	__u64 use_time;
	79	};
	80
d94d9fee	81	struct xfrm_replay_state {
1da177e4 LT	82	__u32 oseq;
	83	__u32 seq;
	84	__u32 bitmap;
	85	};
	86
ecd79187 MK	87	#define XFRMA_REPLAY_ESN_MAX 4096
ecd79187 MK	88
9736acf3 SK	89	struct xfrm_replay_state_esn {
	90	unsigned int bmp_len;
	91	__u32 oseq;
	92	__u32 seq;
	93	__u32 oseq_hi;
	94	__u32 seq_hi;
	95	__u32 replay_window;
	96	__u32 bmp[0];
	97	};
	98
1da177e4	99	struct xfrm_algo {
3f4afb64	100	char alg_name[64];
ba749ae9	101	unsigned int alg_key_len; /* in bits */
3f4afb64	102	char alg_key[0];
1da177e4 LT	103	};
1da177e4 LT	104
4e242d16 MW	105	struct xfrm_algo_auth {
	106	char alg_name[64];
	107	unsigned int alg_key_len; /* in bits */
	108	unsigned int alg_trunc_len; /* in bits */
	109	char alg_key[0];
	110	};
	111
1a6509d9	112	struct xfrm_algo_aead {
461e6c85 ED	113	char alg_name[64];
	114	unsigned int alg_key_len; /* in bits */
	115	unsigned int alg_icv_len; /* in bits */
	116	char alg_key[0];
1a6509d9 HX	117	};
1a6509d9 HX	118
1da177e4 LT	119	struct xfrm_stats {
	120	__u32 replay_window;
	121	__u32 replay;
	122	__u32 integrity_failed;
	123	};
	124
d94d9fee	125	enum {
4e81bb83 MN	126	XFRM_POLICY_TYPE_MAIN = 0,
4e81bb83 MN	127	XFRM_POLICY_TYPE_SUB = 1,
4c563f76 TT	128	XFRM_POLICY_TYPE_MAX = 2,
4c563f76 TT	129	XFRM_POLICY_TYPE_ANY = 255
4e81bb83 MN	130	};
4e81bb83 MN	131
d94d9fee	132	enum {
1da177e4 LT	133	XFRM_POLICY_IN = 0,
	134	XFRM_POLICY_OUT = 1,
	135	XFRM_POLICY_FWD = 2,
d5422efe	136	XFRM_POLICY_MASK = 3,
1da177e4 LT	137	XFRM_POLICY_MAX = 3
	138	};
	139
d94d9fee	140	enum {
1da177e4 LT	141	XFRM_SHARE_ANY, /* No limitations */
	142	XFRM_SHARE_SESSION, /* For this session only */
	143	XFRM_SHARE_USER, /* For this user only */
	144	XFRM_SHARE_UNIQUE /* Use once */
	145	};
	146
b59f45d0 HX	147	#define XFRM_MODE_TRANSPORT 0
b59f45d0 HX	148	#define XFRM_MODE_TUNNEL 1
7e49e6de MN	149	#define XFRM_MODE_ROUTEOPTIMIZATION 2
7e49e6de MN	150	#define XFRM_MODE_IN_TRIGGER 3
0a69452c DB	151	#define XFRM_MODE_BEET 4
0a69452c DB	152	#define XFRM_MODE_MAX 5
b59f45d0	153
1da177e4 LT	154	/* Netlink configuration messages. */
	155	enum {
	156	XFRM_MSG_BASE = 0x10,
	157
	158	XFRM_MSG_NEWSA = 0x10,
	159	#define XFRM_MSG_NEWSA XFRM_MSG_NEWSA
	160	XFRM_MSG_DELSA,
	161	#define XFRM_MSG_DELSA XFRM_MSG_DELSA
	162	XFRM_MSG_GETSA,
	163	#define XFRM_MSG_GETSA XFRM_MSG_GETSA
	164
	165	XFRM_MSG_NEWPOLICY,
	166	#define XFRM_MSG_NEWPOLICY XFRM_MSG_NEWPOLICY
	167	XFRM_MSG_DELPOLICY,
	168	#define XFRM_MSG_DELPOLICY XFRM_MSG_DELPOLICY
	169	XFRM_MSG_GETPOLICY,
	170	#define XFRM_MSG_GETPOLICY XFRM_MSG_GETPOLICY
	171
	172	XFRM_MSG_ALLOCSPI,
	173	#define XFRM_MSG_ALLOCSPI XFRM_MSG_ALLOCSPI
	174	XFRM_MSG_ACQUIRE,
	175	#define XFRM_MSG_ACQUIRE XFRM_MSG_ACQUIRE
	176	XFRM_MSG_EXPIRE,
	177	#define XFRM_MSG_EXPIRE XFRM_MSG_EXPIRE
	178
	179	XFRM_MSG_UPDPOLICY,
	180	#define XFRM_MSG_UPDPOLICY XFRM_MSG_UPDPOLICY
	181	XFRM_MSG_UPDSA,
	182	#define XFRM_MSG_UPDSA XFRM_MSG_UPDSA
	183
	184	XFRM_MSG_POLEXPIRE,
	185	#define XFRM_MSG_POLEXPIRE XFRM_MSG_POLEXPIRE
	186
	187	XFRM_MSG_FLUSHSA,
	188	#define XFRM_MSG_FLUSHSA XFRM_MSG_FLUSHSA
	189	XFRM_MSG_FLUSHPOLICY,
	190	#define XFRM_MSG_FLUSHPOLICY XFRM_MSG_FLUSHPOLICY
	191
f8cd5488 JHS	192	XFRM_MSG_NEWAE,
	193	#define XFRM_MSG_NEWAE XFRM_MSG_NEWAE
	194	XFRM_MSG_GETAE,
	195	#define XFRM_MSG_GETAE XFRM_MSG_GETAE
97a64b45 MN	196
	197	XFRM_MSG_REPORT,
	198	#define XFRM_MSG_REPORT XFRM_MSG_REPORT
	199
80c9abaa SS	200	XFRM_MSG_MIGRATE,
	201	#define XFRM_MSG_MIGRATE XFRM_MSG_MIGRATE
	202
28d8909b JHS	203	XFRM_MSG_NEWSADINFO,
	204	#define XFRM_MSG_NEWSADINFO XFRM_MSG_NEWSADINFO
	205	XFRM_MSG_GETSADINFO,
	206	#define XFRM_MSG_GETSADINFO XFRM_MSG_GETSADINFO
ecfd6b18 JHS	207
	208	XFRM_MSG_NEWSPDINFO,
	209	#define XFRM_MSG_NEWSPDINFO XFRM_MSG_NEWSPDINFO
	210	XFRM_MSG_GETSPDINFO,
	211	#define XFRM_MSG_GETSPDINFO XFRM_MSG_GETSPDINFO
3a2dfbe8 MW	212
	213	XFRM_MSG_MAPPING,
	214	#define XFRM_MSG_MAPPING XFRM_MSG_MAPPING
526bdb80	215	__XFRM_MSG_MAX
1da177e4	216	};
526bdb80	217	#define XFRM_MSG_MAX (__XFRM_MSG_MAX - 1)
1da177e4	218
492b558b TG	219	#define XFRM_NR_MSGTYPES (XFRM_MSG_MAX + 1 - XFRM_MSG_BASE)
492b558b TG	220
df71837d TJ	221	/*
	222	* Generic LSM security context for comunicating to user space
	223	* NOTE: Same format as sadb_x_sec_ctx
	224	*/
	225	struct xfrm_user_sec_ctx {
	226	__u16 len;
	227	__u16 exttype;
	228	__u8 ctx_alg; /* LSMs: e.g., selinux == 1 */
	229	__u8 ctx_doi;
	230	__u16 ctx_len;
	231	};
	232
1da177e4 LT	233	struct xfrm_user_tmpl {
	234	struct xfrm_id id;
	235	__u16 family;
	236	xfrm_address_t saddr;
	237	__u32 reqid;
	238	__u8 mode;
	239	__u8 share;
	240	__u8 optional;
	241	__u32 aalgos;
	242	__u32 ealgos;
	243	__u32 calgos;
	244	};
	245
	246	struct xfrm_encap_tmpl {
	247	__u16 encap_type;
d5a0a1e3 AV	248	__be16 encap_sport;
d5a0a1e3 AV	249	__be16 encap_dport;
1da177e4 LT	250	xfrm_address_t encap_oa;
	251	};
	252
f8cd5488 JHS	253	/* AEVENT flags */
	254	enum xfrm_ae_ftype_t {
	255	XFRM_AE_UNSPEC,
	256	XFRM_AE_RTHR=1, /* replay threshold*/
	257	XFRM_AE_RVAL=2, /* replay value */
	258	XFRM_AE_LVAL=4, /* lifetime value */
	259	XFRM_AE_ETHR=8, /* expiry timer threshold */
	260	XFRM_AE_CR=16, /* Event cause is replay update */
	261	XFRM_AE_CE=32, /* Event cause is timer expiry */
	262	XFRM_AE_CU=64, /* Event cause is policy update */
	263	__XFRM_AE_MAX
	264
	265	#define XFRM_AE_MAX (__XFRM_AE_MAX - 1)
	266	};
	267
f7b6983f MN	268	struct xfrm_userpolicy_type {
	269	__u8 type;
	270	__u16 reserved1;
	271	__u8 reserved2;
	272	};
	273
1da177e4 LT	274	/* Netlink message attributes. */
	275	enum xfrm_attr_type_t {
	276	XFRMA_UNSPEC,
	277	XFRMA_ALG_AUTH, /* struct xfrm_algo */
	278	XFRMA_ALG_CRYPT, /* struct xfrm_algo */
	279	XFRMA_ALG_COMP, /* struct xfrm_algo */
	280	XFRMA_ENCAP, /* struct xfrm_algo + struct xfrm_encap_tmpl */
	281	XFRMA_TMPL, /* 1 or more struct xfrm_user_tmpl */
bf825f81 JHS	282	XFRMA_SA, /* struct xfrm_usersa_info */
bf825f81 JHS	283	XFRMA_POLICY, /struct xfrm_userpolicy_info /
df71837d	284	XFRMA_SEC_CTX, /* struct xfrm_sec_ctx */
f8cd5488 JHS	285	XFRMA_LTIME_VAL,
	286	XFRMA_REPLAY_VAL,
	287	XFRMA_REPLAY_THRESH,
	288	XFRMA_ETIMER_THRESH,
eb2971b6	289	XFRMA_SRCADDR, /* xfrm_address_t */
060f02a3	290	XFRMA_COADDR, /* xfrm_address_t */
bf825f81	291	XFRMA_LASTUSED, /* unsigned long */
f7b6983f	292	XFRMA_POLICY_TYPE, /* struct xfrm_userpolicy_type */
80c9abaa	293	XFRMA_MIGRATE,
1a6509d9	294	XFRMA_ALG_AEAD, /* struct xfrm_algo_aead */
13c1d189	295	XFRMA_KMADDRESS, /* struct xfrm_user_kmaddress */
4e242d16	296	XFRMA_ALG_AUTH_TRUNC, /* struct xfrm_algo_auth */
bf825f81	297	XFRMA_MARK, /* struct xfrm_mark */
35d2856b	298	XFRMA_TFCPAD, /* __u32 */
9736acf3	299	XFRMA_REPLAY_ESN_VAL, /* struct xfrm_replay_esn */
a947b0a9	300	XFRMA_SA_EXTRA_FLAGS, /* __u32 */
d3623099	301	XFRMA_PROTO, /* __u8 */
870a2df4	302	XFRMA_ADDRESS_FILTER, /* struct xfrm_address_filter */
1da177e4 LT	303	__XFRMA_MAX
	304
	305	#define XFRMA_MAX (__XFRMA_MAX - 1)
	306	};
	307
bf825f81 JHS	308	struct xfrm_mark {
	309	__u32 v; /* value */
	310	__u32 m; /* mask */
	311	};
	312
28d8909b JHS	313	enum xfrm_sadattr_type_t {
28d8909b JHS	314	XFRMA_SAD_UNSPEC,
af11e316 JHS	315	XFRMA_SAD_CNT,
af11e316 JHS	316	XFRMA_SAD_HINFO,
28d8909b JHS	317	__XFRMA_SAD_MAX
	318
	319	#define XFRMA_SAD_MAX (__XFRMA_SAD_MAX - 1)
	320	};
	321
af11e316 JHS	322	struct xfrmu_sadhinfo {
	323	__u32 sadhcnt; /* current hash bkts */
	324	__u32 sadhmcnt; /* max allowed hash bkts */
	325	};
	326
ecfd6b18 JHS	327	enum xfrm_spdattr_type_t {
ecfd6b18 JHS	328	XFRMA_SPD_UNSPEC,
5a6d3416 JHS	329	XFRMA_SPD_INFO,
5a6d3416 JHS	330	XFRMA_SPD_HINFO,
ecfd6b18 JHS	331	__XFRMA_SPD_MAX
	332
	333	#define XFRMA_SPD_MAX (__XFRMA_SPD_MAX - 1)
	334	};
	335
5a6d3416 JHS	336	struct xfrmu_spdinfo {
	337	__u32 incnt;
	338	__u32 outcnt;
	339	__u32 fwdcnt;
	340	__u32 inscnt;
	341	__u32 outscnt;
	342	__u32 fwdscnt;
	343	};
	344
	345	struct xfrmu_spdhinfo {
	346	__u32 spdhcnt;
	347	__u32 spdhmcnt;
	348	};
	349
1da177e4 LT	350	struct xfrm_usersa_info {
	351	struct xfrm_selector sel;
	352	struct xfrm_id id;
	353	xfrm_address_t saddr;
	354	struct xfrm_lifetime_cfg lft;
	355	struct xfrm_lifetime_cur curlft;
	356	struct xfrm_stats stats;
	357	__u32 seq;
	358	__u32 reqid;
	359	__u16 family;
7e49e6de	360	__u8 mode; /* XFRM_MODE_xxx */
1da177e4 LT	361	__u8 replay_window;
	362	__u8 flags;
	363	#define XFRM_STATE_NOECN 1
	364	#define XFRM_STATE_DECAP_DSCP 2
dd87147e	365	#define XFRM_STATE_NOPMTUDISC 4
fbd9a5b4	366	#define XFRM_STATE_WILDRECV 8
8b7817f3	367	#define XFRM_STATE_ICMP 16
ccf9b3b8	368	#define XFRM_STATE_AF_UNSPEC 32
fa9921e4	369	#define XFRM_STATE_ALIGN4 64
9736acf3	370	#define XFRM_STATE_ESN 128
1da177e4 LT	371	};
1da177e4 LT	372
a947b0a9 ND	373	#define XFRM_SA_XFLAG_DONT_ENCAP_DSCP 1
a947b0a9 ND	374
1da177e4 LT	375	struct xfrm_usersa_id {
1da177e4 LT	376	xfrm_address_t daddr;
9916ecb0	377	__be32 spi;
1da177e4 LT	378	__u16 family;
	379	__u8 proto;
	380	};
	381
f8cd5488	382	struct xfrm_aevent_id {
f8cd5488	383	struct xfrm_usersa_id sa_id;
2b5f6dcc	384	xfrm_address_t saddr;
4bf07ef3	385	__u32 flags;
2b5f6dcc	386	__u32 reqid;
f8cd5488 JHS	387	};
f8cd5488 JHS	388
1da177e4 LT	389	struct xfrm_userspi_info {
	390	struct xfrm_usersa_info info;
	391	__u32 min;
	392	__u32 max;
	393	};
	394
	395	struct xfrm_userpolicy_info {
	396	struct xfrm_selector sel;
	397	struct xfrm_lifetime_cfg lft;
	398	struct xfrm_lifetime_cur curlft;
	399	__u32 priority;
	400	__u32 index;
	401	__u8 dir;
	402	__u8 action;
	403	#define XFRM_POLICY_ALLOW 0
	404	#define XFRM_POLICY_BLOCK 1
	405	__u8 flags;
	406	#define XFRM_POLICY_LOCALOK 1 /* Allow user to override global policy */
8b7817f3 HX	407	/* Automatically expand selector to include matching ICMP payloads. */
8b7817f3 HX	408	#define XFRM_POLICY_ICMP 2
1da177e4 LT	409	__u8 share;
	410	};
	411
	412	struct xfrm_userpolicy_id {
	413	struct xfrm_selector sel;
	414	__u32 index;
	415	__u8 dir;
	416	};
	417
	418	struct xfrm_user_acquire {
	419	struct xfrm_id id;
	420	xfrm_address_t saddr;
	421	struct xfrm_selector sel;
	422	struct xfrm_userpolicy_info policy;
	423	__u32 aalgos;
	424	__u32 ealgos;
	425	__u32 calgos;
	426	__u32 seq;
	427	};
	428
	429	struct xfrm_user_expire {
	430	struct xfrm_usersa_info state;
	431	__u8 hard;
	432	};
	433
	434	struct xfrm_user_polexpire {
	435	struct xfrm_userpolicy_info pol;
	436	__u8 hard;
	437	};
	438
	439	struct xfrm_usersa_flush {
	440	__u8 proto;
	441	};
	442
97a64b45 MN	443	struct xfrm_user_report {
	444	__u8 proto;
	445	struct xfrm_selector sel;
	446	};
	447
13c1d189 AE	448	/* Used by MIGRATE to pass addresses IKE should use to perform
	449	* SA negotiation with the peer */
	450	struct xfrm_user_kmaddress {
	451	xfrm_address_t local;
	452	xfrm_address_t remote;
	453	__u32 reserved;
	454	__u16 family;
	455	};
	456
80c9abaa SS	457	struct xfrm_user_migrate {
	458	xfrm_address_t old_daddr;
	459	xfrm_address_t old_saddr;
	460	xfrm_address_t new_daddr;
	461	xfrm_address_t new_saddr;
	462	__u8 proto;
	463	__u8 mode;
	464	__u16 reserved;
	465	__u32 reqid;
	466	__u16 old_family;
	467	__u16 new_family;
	468	};
	469
3a2dfbe8 MW	470	struct xfrm_user_mapping {
	471	struct xfrm_usersa_id id;
	472	__u32 reqid;
	473	xfrm_address_t old_saddr;
	474	xfrm_address_t new_saddr;
	475	__be16 old_sport;
	476	__be16 new_sport;
	477	};
	478
870a2df4	479	struct xfrm_address_filter {
d3623099 ND	480	xfrm_address_t saddr;
	481	xfrm_address_t daddr;
	482	__u16 family;
	483	__u8 splen;
	484	__u8 dplen;
	485	};
	486
ac6d439d PM	487	#ifndef __KERNEL__
ac6d439d PM	488	/* backwards compatibility for userspace */
1da177e4 LT	489	#define XFRMGRP_ACQUIRE 1
1da177e4 LT	490	#define XFRMGRP_EXPIRE 2
26b15dad JHS	491	#define XFRMGRP_SA 4
26b15dad JHS	492	#define XFRMGRP_POLICY 8
93366c53	493	#define XFRMGRP_REPORT 0x20
ac6d439d PM	494	#endif
	495
	496	enum xfrm_nlgroups {
	497	XFRMNLGRP_NONE,
	498	#define XFRMNLGRP_NONE XFRMNLGRP_NONE
	499	XFRMNLGRP_ACQUIRE,
	500	#define XFRMNLGRP_ACQUIRE XFRMNLGRP_ACQUIRE
	501	XFRMNLGRP_EXPIRE,
	502	#define XFRMNLGRP_EXPIRE XFRMNLGRP_EXPIRE
	503	XFRMNLGRP_SA,
	504	#define XFRMNLGRP_SA XFRMNLGRP_SA
	505	XFRMNLGRP_POLICY,
	506	#define XFRMNLGRP_POLICY XFRMNLGRP_POLICY
f8cd5488 JHS	507	XFRMNLGRP_AEVENTS,
f8cd5488 JHS	508	#define XFRMNLGRP_AEVENTS XFRMNLGRP_AEVENTS
97a64b45 MN	509	XFRMNLGRP_REPORT,
97a64b45 MN	510	#define XFRMNLGRP_REPORT XFRMNLGRP_REPORT
80c9abaa SS	511	XFRMNLGRP_MIGRATE,
80c9abaa SS	512	#define XFRMNLGRP_MIGRATE XFRMNLGRP_MIGRATE
3a2dfbe8 MW	513	XFRMNLGRP_MAPPING,
3a2dfbe8 MW	514	#define XFRMNLGRP_MAPPING XFRMNLGRP_MAPPING
ac6d439d PM	515	__XFRMNLGRP_MAX
	516	};
	517	#define XFRMNLGRP_MAX (__XFRMNLGRP_MAX - 1)
1da177e4 LT	518
1da177e4 LT	519	#endif /* _LINUX_XFRM_H */