[deliverable/linux.git] / include / 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;
	uid_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;
};

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

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

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_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,
	XFRMA_POLICY,
	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,
	XFRMA_POLICY_TYPE,	/* struct xfrm_userpolicy_type */
	XFRMA_MIGRATE,
	XFRMA_ALG_AEAD,		/* struct xfrm_algo_aead */
	__XFRMA_MAX

#define XFRMA_MAX (__XFRMA_MAX - 1)
};

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
};

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;
};

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;
};

#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_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	*/
	13	typedef union
	14	{
737b5761 AV	15	__be32 a4;
737b5761 AV	16	__be32 a6[4];
1da177e4 LT	17	} xfrm_address_t;
	18
	19	/* Ident of a specific xfrm_state. It is used on input to lookup
	20	* the state by (spi,daddr,ah/esp) or to store information about
	21	* spi, protocol and tunnel address on output.
	22	*/
	23	struct xfrm_id
	24	{
	25	xfrm_address_t daddr;
e037c39b	26	__be32 spi;
1da177e4 LT	27	__u8 proto;
	28	};
	29
df71837d TJ	30	struct xfrm_sec_ctx {
	31	__u8 ctx_doi;
	32	__u8 ctx_alg;
	33	__u16 ctx_len;
	34	__u32 ctx_sid;
	35	char ctx_str[0];
	36	};
	37
	38	/* Security Context Domains of Interpretation */
	39	#define XFRM_SC_DOI_RESERVED 0
	40	#define XFRM_SC_DOI_LSM 1
	41
	42	/* Security Context Algorithms */
	43	#define XFRM_SC_ALG_RESERVED 0
	44	#define XFRM_SC_ALG_SELINUX 1
	45
1da177e4 LT	46	/* Selector, used as selector both on policy rules (SPD) and SAs. */
	47
	48	struct xfrm_selector
	49	{
	50	xfrm_address_t daddr;
	51	xfrm_address_t saddr;
8f83f23e AV	52	__be16 dport;
	53	__be16 dport_mask;
	54	__be16 sport;
	55	__be16 sport_mask;
1da177e4 LT	56	__u16 family;
	57	__u8 prefixlen_d;
	58	__u8 prefixlen_s;
	59	__u8 proto;
	60	int ifindex;
	61	uid_t user;
	62	};
	63
	64	#define XFRM_INF (~(__u64)0)
	65
	66	struct xfrm_lifetime_cfg
	67	{
	68	__u64 soft_byte_limit;
	69	__u64 hard_byte_limit;
	70	__u64 soft_packet_limit;
	71	__u64 hard_packet_limit;
	72	__u64 soft_add_expires_seconds;
	73	__u64 hard_add_expires_seconds;
	74	__u64 soft_use_expires_seconds;
	75	__u64 hard_use_expires_seconds;
	76	};
	77
	78	struct xfrm_lifetime_cur
	79	{
	80	__u64 bytes;
	81	__u64 packets;
	82	__u64 add_time;
	83	__u64 use_time;
	84	};
	85
	86	struct xfrm_replay_state
	87	{
	88	__u32 oseq;
	89	__u32 seq;
	90	__u32 bitmap;
	91	};
	92
	93	struct xfrm_algo {
3f4afb64	94	char alg_name[64];
ba749ae9	95	unsigned int alg_key_len; /* in bits */
3f4afb64	96	char alg_key[0];
1da177e4 LT	97	};
1da177e4 LT	98
1a6509d9 HX	99	struct xfrm_algo_aead {
	100	char alg_name[64];
	101	int alg_key_len; /* in bits */
	102	int alg_icv_len; /* in bits */
	103	char alg_key[0];
	104	};
	105
1da177e4 LT	106	struct xfrm_stats {
	107	__u32 replay_window;
	108	__u32 replay;
	109	__u32 integrity_failed;
	110	};
	111
4e81bb83 MN	112	enum
	113	{
	114	XFRM_POLICY_TYPE_MAIN = 0,
	115	XFRM_POLICY_TYPE_SUB = 1,
	116	XFRM_POLICY_TYPE_MAX = 2
	117	};
	118
1da177e4 LT	119	enum
	120	{
	121	XFRM_POLICY_IN = 0,
	122	XFRM_POLICY_OUT = 1,
	123	XFRM_POLICY_FWD = 2,
d5422efe	124	XFRM_POLICY_MASK = 3,
1da177e4 LT	125	XFRM_POLICY_MAX = 3
	126	};
	127
	128	enum
	129	{
	130	XFRM_SHARE_ANY, /* No limitations */
	131	XFRM_SHARE_SESSION, /* For this session only */
	132	XFRM_SHARE_USER, /* For this user only */
	133	XFRM_SHARE_UNIQUE /* Use once */
	134	};
	135
b59f45d0 HX	136	#define XFRM_MODE_TRANSPORT 0
b59f45d0 HX	137	#define XFRM_MODE_TUNNEL 1
7e49e6de MN	138	#define XFRM_MODE_ROUTEOPTIMIZATION 2
7e49e6de MN	139	#define XFRM_MODE_IN_TRIGGER 3
0a69452c DB	140	#define XFRM_MODE_BEET 4
0a69452c DB	141	#define XFRM_MODE_MAX 5
b59f45d0	142
1da177e4 LT	143	/* Netlink configuration messages. */
	144	enum {
	145	XFRM_MSG_BASE = 0x10,
	146
	147	XFRM_MSG_NEWSA = 0x10,
	148	#define XFRM_MSG_NEWSA XFRM_MSG_NEWSA
	149	XFRM_MSG_DELSA,
	150	#define XFRM_MSG_DELSA XFRM_MSG_DELSA
	151	XFRM_MSG_GETSA,
	152	#define XFRM_MSG_GETSA XFRM_MSG_GETSA
	153
	154	XFRM_MSG_NEWPOLICY,
	155	#define XFRM_MSG_NEWPOLICY XFRM_MSG_NEWPOLICY
	156	XFRM_MSG_DELPOLICY,
	157	#define XFRM_MSG_DELPOLICY XFRM_MSG_DELPOLICY
	158	XFRM_MSG_GETPOLICY,
	159	#define XFRM_MSG_GETPOLICY XFRM_MSG_GETPOLICY
	160
	161	XFRM_MSG_ALLOCSPI,
	162	#define XFRM_MSG_ALLOCSPI XFRM_MSG_ALLOCSPI
	163	XFRM_MSG_ACQUIRE,
	164	#define XFRM_MSG_ACQUIRE XFRM_MSG_ACQUIRE
	165	XFRM_MSG_EXPIRE,
	166	#define XFRM_MSG_EXPIRE XFRM_MSG_EXPIRE
	167
	168	XFRM_MSG_UPDPOLICY,
	169	#define XFRM_MSG_UPDPOLICY XFRM_MSG_UPDPOLICY
	170	XFRM_MSG_UPDSA,
	171	#define XFRM_MSG_UPDSA XFRM_MSG_UPDSA
	172
	173	XFRM_MSG_POLEXPIRE,
	174	#define XFRM_MSG_POLEXPIRE XFRM_MSG_POLEXPIRE
	175
	176	XFRM_MSG_FLUSHSA,
	177	#define XFRM_MSG_FLUSHSA XFRM_MSG_FLUSHSA
	178	XFRM_MSG_FLUSHPOLICY,
	179	#define XFRM_MSG_FLUSHPOLICY XFRM_MSG_FLUSHPOLICY
	180
f8cd5488 JHS	181	XFRM_MSG_NEWAE,
	182	#define XFRM_MSG_NEWAE XFRM_MSG_NEWAE
	183	XFRM_MSG_GETAE,
	184	#define XFRM_MSG_GETAE XFRM_MSG_GETAE
97a64b45 MN	185
	186	XFRM_MSG_REPORT,
	187	#define XFRM_MSG_REPORT XFRM_MSG_REPORT
	188
80c9abaa SS	189	XFRM_MSG_MIGRATE,
	190	#define XFRM_MSG_MIGRATE XFRM_MSG_MIGRATE
	191
28d8909b JHS	192	XFRM_MSG_NEWSADINFO,
	193	#define XFRM_MSG_NEWSADINFO XFRM_MSG_NEWSADINFO
	194	XFRM_MSG_GETSADINFO,
	195	#define XFRM_MSG_GETSADINFO XFRM_MSG_GETSADINFO
ecfd6b18 JHS	196
	197	XFRM_MSG_NEWSPDINFO,
	198	#define XFRM_MSG_NEWSPDINFO XFRM_MSG_NEWSPDINFO
	199	XFRM_MSG_GETSPDINFO,
	200	#define XFRM_MSG_GETSPDINFO XFRM_MSG_GETSPDINFO
526bdb80	201	__XFRM_MSG_MAX
1da177e4	202	};
526bdb80	203	#define XFRM_MSG_MAX (__XFRM_MSG_MAX - 1)
1da177e4	204
492b558b TG	205	#define XFRM_NR_MSGTYPES (XFRM_MSG_MAX + 1 - XFRM_MSG_BASE)
492b558b TG	206
df71837d TJ	207	/*
	208	* Generic LSM security context for comunicating to user space
	209	* NOTE: Same format as sadb_x_sec_ctx
	210	*/
	211	struct xfrm_user_sec_ctx {
	212	__u16 len;
	213	__u16 exttype;
	214	__u8 ctx_alg; /* LSMs: e.g., selinux == 1 */
	215	__u8 ctx_doi;
	216	__u16 ctx_len;
	217	};
	218
1da177e4 LT	219	struct xfrm_user_tmpl {
	220	struct xfrm_id id;
	221	__u16 family;
	222	xfrm_address_t saddr;
	223	__u32 reqid;
	224	__u8 mode;
	225	__u8 share;
	226	__u8 optional;
	227	__u32 aalgos;
	228	__u32 ealgos;
	229	__u32 calgos;
	230	};
	231
	232	struct xfrm_encap_tmpl {
	233	__u16 encap_type;
d5a0a1e3 AV	234	__be16 encap_sport;
d5a0a1e3 AV	235	__be16 encap_dport;
1da177e4 LT	236	xfrm_address_t encap_oa;
	237	};
	238
f8cd5488 JHS	239	/* AEVENT flags */
	240	enum xfrm_ae_ftype_t {
	241	XFRM_AE_UNSPEC,
	242	XFRM_AE_RTHR=1, /* replay threshold*/
	243	XFRM_AE_RVAL=2, /* replay value */
	244	XFRM_AE_LVAL=4, /* lifetime value */
	245	XFRM_AE_ETHR=8, /* expiry timer threshold */
	246	XFRM_AE_CR=16, /* Event cause is replay update */
	247	XFRM_AE_CE=32, /* Event cause is timer expiry */
	248	XFRM_AE_CU=64, /* Event cause is policy update */
	249	__XFRM_AE_MAX
	250
	251	#define XFRM_AE_MAX (__XFRM_AE_MAX - 1)
	252	};
	253
f7b6983f MN	254	struct xfrm_userpolicy_type {
	255	__u8 type;
	256	__u16 reserved1;
	257	__u8 reserved2;
	258	};
	259
1da177e4 LT	260	/* Netlink message attributes. */
	261	enum xfrm_attr_type_t {
	262	XFRMA_UNSPEC,
	263	XFRMA_ALG_AUTH, /* struct xfrm_algo */
	264	XFRMA_ALG_CRYPT, /* struct xfrm_algo */
	265	XFRMA_ALG_COMP, /* struct xfrm_algo */
	266	XFRMA_ENCAP, /* struct xfrm_algo + struct xfrm_encap_tmpl */
	267	XFRMA_TMPL, /* 1 or more struct xfrm_user_tmpl */
0603eac0 HX	268	XFRMA_SA,
0603eac0 HX	269	XFRMA_POLICY,
df71837d	270	XFRMA_SEC_CTX, /* struct xfrm_sec_ctx */
f8cd5488 JHS	271	XFRMA_LTIME_VAL,
	272	XFRMA_REPLAY_VAL,
	273	XFRMA_REPLAY_THRESH,
	274	XFRMA_ETIMER_THRESH,
eb2971b6	275	XFRMA_SRCADDR, /* xfrm_address_t */
060f02a3	276	XFRMA_COADDR, /* xfrm_address_t */
9afaca05	277	XFRMA_LASTUSED,
f7b6983f	278	XFRMA_POLICY_TYPE, /* struct xfrm_userpolicy_type */
80c9abaa	279	XFRMA_MIGRATE,
1a6509d9	280	XFRMA_ALG_AEAD, /* struct xfrm_algo_aead */
1da177e4 LT	281	__XFRMA_MAX
	282
	283	#define XFRMA_MAX (__XFRMA_MAX - 1)
	284	};
	285
28d8909b JHS	286	enum xfrm_sadattr_type_t {
28d8909b JHS	287	XFRMA_SAD_UNSPEC,
af11e316 JHS	288	XFRMA_SAD_CNT,
af11e316 JHS	289	XFRMA_SAD_HINFO,
28d8909b JHS	290	__XFRMA_SAD_MAX
	291
	292	#define XFRMA_SAD_MAX (__XFRMA_SAD_MAX - 1)
	293	};
	294
af11e316 JHS	295	struct xfrmu_sadhinfo {
	296	__u32 sadhcnt; /* current hash bkts */
	297	__u32 sadhmcnt; /* max allowed hash bkts */
	298	};
	299
ecfd6b18 JHS	300	enum xfrm_spdattr_type_t {
ecfd6b18 JHS	301	XFRMA_SPD_UNSPEC,
5a6d3416 JHS	302	XFRMA_SPD_INFO,
5a6d3416 JHS	303	XFRMA_SPD_HINFO,
ecfd6b18 JHS	304	__XFRMA_SPD_MAX
	305
	306	#define XFRMA_SPD_MAX (__XFRMA_SPD_MAX - 1)
	307	};
	308
5a6d3416 JHS	309	struct xfrmu_spdinfo {
	310	__u32 incnt;
	311	__u32 outcnt;
	312	__u32 fwdcnt;
	313	__u32 inscnt;
	314	__u32 outscnt;
	315	__u32 fwdscnt;
	316	};
	317
	318	struct xfrmu_spdhinfo {
	319	__u32 spdhcnt;
	320	__u32 spdhmcnt;
	321	};
	322
1da177e4 LT	323	struct xfrm_usersa_info {
	324	struct xfrm_selector sel;
	325	struct xfrm_id id;
	326	xfrm_address_t saddr;
	327	struct xfrm_lifetime_cfg lft;
	328	struct xfrm_lifetime_cur curlft;
	329	struct xfrm_stats stats;
	330	__u32 seq;
	331	__u32 reqid;
	332	__u16 family;
7e49e6de	333	__u8 mode; /* XFRM_MODE_xxx */
1da177e4 LT	334	__u8 replay_window;
	335	__u8 flags;
	336	#define XFRM_STATE_NOECN 1
	337	#define XFRM_STATE_DECAP_DSCP 2
dd87147e	338	#define XFRM_STATE_NOPMTUDISC 4
fbd9a5b4	339	#define XFRM_STATE_WILDRECV 8
8b7817f3	340	#define XFRM_STATE_ICMP 16
1da177e4 LT	341	};
	342
	343	struct xfrm_usersa_id {
	344	xfrm_address_t daddr;
9916ecb0	345	__be32 spi;
1da177e4 LT	346	__u16 family;
	347	__u8 proto;
	348	};
	349
f8cd5488	350	struct xfrm_aevent_id {
f8cd5488	351	struct xfrm_usersa_id sa_id;
2b5f6dcc	352	xfrm_address_t saddr;
4bf07ef3	353	__u32 flags;
2b5f6dcc	354	__u32 reqid;
f8cd5488 JHS	355	};
f8cd5488 JHS	356
1da177e4 LT	357	struct xfrm_userspi_info {
	358	struct xfrm_usersa_info info;
	359	__u32 min;
	360	__u32 max;
	361	};
	362
	363	struct xfrm_userpolicy_info {
	364	struct xfrm_selector sel;
	365	struct xfrm_lifetime_cfg lft;
	366	struct xfrm_lifetime_cur curlft;
	367	__u32 priority;
	368	__u32 index;
	369	__u8 dir;
	370	__u8 action;
	371	#define XFRM_POLICY_ALLOW 0
	372	#define XFRM_POLICY_BLOCK 1
	373	__u8 flags;
	374	#define XFRM_POLICY_LOCALOK 1 /* Allow user to override global policy */
8b7817f3 HX	375	/* Automatically expand selector to include matching ICMP payloads. */
8b7817f3 HX	376	#define XFRM_POLICY_ICMP 2
1da177e4 LT	377	__u8 share;
	378	};
	379
	380	struct xfrm_userpolicy_id {
	381	struct xfrm_selector sel;
	382	__u32 index;
	383	__u8 dir;
	384	};
	385
	386	struct xfrm_user_acquire {
	387	struct xfrm_id id;
	388	xfrm_address_t saddr;
	389	struct xfrm_selector sel;
	390	struct xfrm_userpolicy_info policy;
	391	__u32 aalgos;
	392	__u32 ealgos;
	393	__u32 calgos;
	394	__u32 seq;
	395	};
	396
	397	struct xfrm_user_expire {
	398	struct xfrm_usersa_info state;
	399	__u8 hard;
	400	};
	401
	402	struct xfrm_user_polexpire {
	403	struct xfrm_userpolicy_info pol;
	404	__u8 hard;
	405	};
	406
	407	struct xfrm_usersa_flush {
	408	__u8 proto;
	409	};
	410
97a64b45 MN	411	struct xfrm_user_report {
	412	__u8 proto;
	413	struct xfrm_selector sel;
	414	};
	415
80c9abaa SS	416	struct xfrm_user_migrate {
	417	xfrm_address_t old_daddr;
	418	xfrm_address_t old_saddr;
	419	xfrm_address_t new_daddr;
	420	xfrm_address_t new_saddr;
	421	__u8 proto;
	422	__u8 mode;
	423	__u16 reserved;
	424	__u32 reqid;
	425	__u16 old_family;
	426	__u16 new_family;
	427	};
	428
ac6d439d PM	429	#ifndef __KERNEL__
ac6d439d PM	430	/* backwards compatibility for userspace */
1da177e4 LT	431	#define XFRMGRP_ACQUIRE 1
1da177e4 LT	432	#define XFRMGRP_EXPIRE 2
26b15dad JHS	433	#define XFRMGRP_SA 4
26b15dad JHS	434	#define XFRMGRP_POLICY 8
93366c53	435	#define XFRMGRP_REPORT 0x20
ac6d439d PM	436	#endif
	437
	438	enum xfrm_nlgroups {
	439	XFRMNLGRP_NONE,
	440	#define XFRMNLGRP_NONE XFRMNLGRP_NONE
	441	XFRMNLGRP_ACQUIRE,
	442	#define XFRMNLGRP_ACQUIRE XFRMNLGRP_ACQUIRE
	443	XFRMNLGRP_EXPIRE,
	444	#define XFRMNLGRP_EXPIRE XFRMNLGRP_EXPIRE
	445	XFRMNLGRP_SA,
	446	#define XFRMNLGRP_SA XFRMNLGRP_SA
	447	XFRMNLGRP_POLICY,
	448	#define XFRMNLGRP_POLICY XFRMNLGRP_POLICY
f8cd5488 JHS	449	XFRMNLGRP_AEVENTS,
f8cd5488 JHS	450	#define XFRMNLGRP_AEVENTS XFRMNLGRP_AEVENTS
97a64b45 MN	451	XFRMNLGRP_REPORT,
97a64b45 MN	452	#define XFRMNLGRP_REPORT XFRMNLGRP_REPORT
80c9abaa SS	453	XFRMNLGRP_MIGRATE,
80c9abaa SS	454	#define XFRMNLGRP_MIGRATE XFRMNLGRP_MIGRATE
ac6d439d PM	455	__XFRMNLGRP_MAX
	456	};
	457	#define XFRMNLGRP_MAX (__XFRMNLGRP_MAX - 1)
1da177e4 LT	458
1da177e4 LT	459	#endif /* _LINUX_XFRM_H */