[mirror_ubuntu-jammy-kernel.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];
	int	alg_key_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_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_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
};

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 */
	__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 {
	94	char alg_name[64];
	95	int alg_key_len; /* in bits */
	96	char alg_key[0];
	97	};
	98
	99	struct xfrm_stats {
	100	__u32 replay_window;
	101	__u32 replay;
	102	__u32 integrity_failed;
	103	};
	104
4e81bb83 MN	105	enum
	106	{
	107	XFRM_POLICY_TYPE_MAIN = 0,
	108	XFRM_POLICY_TYPE_SUB = 1,
	109	XFRM_POLICY_TYPE_MAX = 2
	110	};
	111
1da177e4 LT	112	enum
	113	{
	114	XFRM_POLICY_IN = 0,
	115	XFRM_POLICY_OUT = 1,
	116	XFRM_POLICY_FWD = 2,
	117	XFRM_POLICY_MAX = 3
	118	};
	119
	120	enum
	121	{
	122	XFRM_SHARE_ANY, /* No limitations */
	123	XFRM_SHARE_SESSION, /* For this session only */
	124	XFRM_SHARE_USER, /* For this user only */
	125	XFRM_SHARE_UNIQUE /* Use once */
	126	};
	127
b59f45d0 HX	128	#define XFRM_MODE_TRANSPORT 0
b59f45d0 HX	129	#define XFRM_MODE_TUNNEL 1
7e49e6de MN	130	#define XFRM_MODE_ROUTEOPTIMIZATION 2
7e49e6de MN	131	#define XFRM_MODE_IN_TRIGGER 3
0a69452c DB	132	#define XFRM_MODE_BEET 4
0a69452c DB	133	#define XFRM_MODE_MAX 5
b59f45d0	134
1da177e4 LT	135	/* Netlink configuration messages. */
	136	enum {
	137	XFRM_MSG_BASE = 0x10,
	138
	139	XFRM_MSG_NEWSA = 0x10,
	140	#define XFRM_MSG_NEWSA XFRM_MSG_NEWSA
	141	XFRM_MSG_DELSA,
	142	#define XFRM_MSG_DELSA XFRM_MSG_DELSA
	143	XFRM_MSG_GETSA,
	144	#define XFRM_MSG_GETSA XFRM_MSG_GETSA
	145
	146	XFRM_MSG_NEWPOLICY,
	147	#define XFRM_MSG_NEWPOLICY XFRM_MSG_NEWPOLICY
	148	XFRM_MSG_DELPOLICY,
	149	#define XFRM_MSG_DELPOLICY XFRM_MSG_DELPOLICY
	150	XFRM_MSG_GETPOLICY,
	151	#define XFRM_MSG_GETPOLICY XFRM_MSG_GETPOLICY
	152
	153	XFRM_MSG_ALLOCSPI,
	154	#define XFRM_MSG_ALLOCSPI XFRM_MSG_ALLOCSPI
	155	XFRM_MSG_ACQUIRE,
	156	#define XFRM_MSG_ACQUIRE XFRM_MSG_ACQUIRE
	157	XFRM_MSG_EXPIRE,
	158	#define XFRM_MSG_EXPIRE XFRM_MSG_EXPIRE
	159
	160	XFRM_MSG_UPDPOLICY,
	161	#define XFRM_MSG_UPDPOLICY XFRM_MSG_UPDPOLICY
	162	XFRM_MSG_UPDSA,
	163	#define XFRM_MSG_UPDSA XFRM_MSG_UPDSA
	164
	165	XFRM_MSG_POLEXPIRE,
	166	#define XFRM_MSG_POLEXPIRE XFRM_MSG_POLEXPIRE
	167
	168	XFRM_MSG_FLUSHSA,
	169	#define XFRM_MSG_FLUSHSA XFRM_MSG_FLUSHSA
	170	XFRM_MSG_FLUSHPOLICY,
	171	#define XFRM_MSG_FLUSHPOLICY XFRM_MSG_FLUSHPOLICY
	172
f8cd5488 JHS	173	XFRM_MSG_NEWAE,
	174	#define XFRM_MSG_NEWAE XFRM_MSG_NEWAE
	175	XFRM_MSG_GETAE,
	176	#define XFRM_MSG_GETAE XFRM_MSG_GETAE
97a64b45 MN	177
	178	XFRM_MSG_REPORT,
	179	#define XFRM_MSG_REPORT XFRM_MSG_REPORT
	180
80c9abaa SS	181	XFRM_MSG_MIGRATE,
	182	#define XFRM_MSG_MIGRATE XFRM_MSG_MIGRATE
	183
28d8909b JHS	184	XFRM_MSG_NEWSADINFO,
	185	#define XFRM_MSG_NEWSADINFO XFRM_MSG_NEWSADINFO
	186	XFRM_MSG_GETSADINFO,
	187	#define XFRM_MSG_GETSADINFO XFRM_MSG_GETSADINFO
ecfd6b18 JHS	188
	189	XFRM_MSG_NEWSPDINFO,
	190	#define XFRM_MSG_NEWSPDINFO XFRM_MSG_NEWSPDINFO
	191	XFRM_MSG_GETSPDINFO,
	192	#define XFRM_MSG_GETSPDINFO XFRM_MSG_GETSPDINFO
526bdb80	193	__XFRM_MSG_MAX
1da177e4	194	};
526bdb80	195	#define XFRM_MSG_MAX (__XFRM_MSG_MAX - 1)
1da177e4	196
492b558b TG	197	#define XFRM_NR_MSGTYPES (XFRM_MSG_MAX + 1 - XFRM_MSG_BASE)
492b558b TG	198
df71837d TJ	199	/*
	200	* Generic LSM security context for comunicating to user space
	201	* NOTE: Same format as sadb_x_sec_ctx
	202	*/
	203	struct xfrm_user_sec_ctx {
	204	__u16 len;
	205	__u16 exttype;
	206	__u8 ctx_alg; /* LSMs: e.g., selinux == 1 */
	207	__u8 ctx_doi;
	208	__u16 ctx_len;
	209	};
	210
1da177e4 LT	211	struct xfrm_user_tmpl {
	212	struct xfrm_id id;
	213	__u16 family;
	214	xfrm_address_t saddr;
	215	__u32 reqid;
	216	__u8 mode;
	217	__u8 share;
	218	__u8 optional;
	219	__u32 aalgos;
	220	__u32 ealgos;
	221	__u32 calgos;
	222	};
	223
	224	struct xfrm_encap_tmpl {
	225	__u16 encap_type;
d5a0a1e3 AV	226	__be16 encap_sport;
d5a0a1e3 AV	227	__be16 encap_dport;
1da177e4 LT	228	xfrm_address_t encap_oa;
	229	};
	230
f8cd5488 JHS	231	/* AEVENT flags */
	232	enum xfrm_ae_ftype_t {
	233	XFRM_AE_UNSPEC,
	234	XFRM_AE_RTHR=1, /* replay threshold*/
	235	XFRM_AE_RVAL=2, /* replay value */
	236	XFRM_AE_LVAL=4, /* lifetime value */
	237	XFRM_AE_ETHR=8, /* expiry timer threshold */
	238	XFRM_AE_CR=16, /* Event cause is replay update */
	239	XFRM_AE_CE=32, /* Event cause is timer expiry */
	240	XFRM_AE_CU=64, /* Event cause is policy update */
	241	__XFRM_AE_MAX
	242
	243	#define XFRM_AE_MAX (__XFRM_AE_MAX - 1)
	244	};
	245
f7b6983f MN	246	struct xfrm_userpolicy_type {
	247	__u8 type;
	248	__u16 reserved1;
	249	__u8 reserved2;
	250	};
	251
1da177e4 LT	252	/* Netlink message attributes. */
	253	enum xfrm_attr_type_t {
	254	XFRMA_UNSPEC,
	255	XFRMA_ALG_AUTH, /* struct xfrm_algo */
	256	XFRMA_ALG_CRYPT, /* struct xfrm_algo */
	257	XFRMA_ALG_COMP, /* struct xfrm_algo */
	258	XFRMA_ENCAP, /* struct xfrm_algo + struct xfrm_encap_tmpl */
	259	XFRMA_TMPL, /* 1 or more struct xfrm_user_tmpl */
0603eac0 HX	260	XFRMA_SA,
0603eac0 HX	261	XFRMA_POLICY,
df71837d	262	XFRMA_SEC_CTX, /* struct xfrm_sec_ctx */
f8cd5488 JHS	263	XFRMA_LTIME_VAL,
	264	XFRMA_REPLAY_VAL,
	265	XFRMA_REPLAY_THRESH,
	266	XFRMA_ETIMER_THRESH,
eb2971b6	267	XFRMA_SRCADDR, /* xfrm_address_t */
060f02a3	268	XFRMA_COADDR, /* xfrm_address_t */
9afaca05	269	XFRMA_LASTUSED,
f7b6983f	270	XFRMA_POLICY_TYPE, /* struct xfrm_userpolicy_type */
80c9abaa	271	XFRMA_MIGRATE,
1da177e4 LT	272	__XFRMA_MAX
	273
	274	#define XFRMA_MAX (__XFRMA_MAX - 1)
	275	};
	276
28d8909b JHS	277	enum xfrm_sadattr_type_t {
28d8909b JHS	278	XFRMA_SAD_UNSPEC,
af11e316 JHS	279	XFRMA_SAD_CNT,
af11e316 JHS	280	XFRMA_SAD_HINFO,
28d8909b JHS	281	__XFRMA_SAD_MAX
	282
	283	#define XFRMA_SAD_MAX (__XFRMA_SAD_MAX - 1)
	284	};
	285
af11e316 JHS	286	struct xfrmu_sadhinfo {
	287	__u32 sadhcnt; /* current hash bkts */
	288	__u32 sadhmcnt; /* max allowed hash bkts */
	289	};
	290
ecfd6b18 JHS	291	enum xfrm_spdattr_type_t {
ecfd6b18 JHS	292	XFRMA_SPD_UNSPEC,
5a6d3416 JHS	293	XFRMA_SPD_INFO,
5a6d3416 JHS	294	XFRMA_SPD_HINFO,
ecfd6b18 JHS	295	__XFRMA_SPD_MAX
	296
	297	#define XFRMA_SPD_MAX (__XFRMA_SPD_MAX - 1)
	298	};
	299
5a6d3416 JHS	300	struct xfrmu_spdinfo {
	301	__u32 incnt;
	302	__u32 outcnt;
	303	__u32 fwdcnt;
	304	__u32 inscnt;
	305	__u32 outscnt;
	306	__u32 fwdscnt;
	307	};
	308
	309	struct xfrmu_spdhinfo {
	310	__u32 spdhcnt;
	311	__u32 spdhmcnt;
	312	};
	313
1da177e4 LT	314	struct xfrm_usersa_info {
	315	struct xfrm_selector sel;
	316	struct xfrm_id id;
	317	xfrm_address_t saddr;
	318	struct xfrm_lifetime_cfg lft;
	319	struct xfrm_lifetime_cur curlft;
	320	struct xfrm_stats stats;
	321	__u32 seq;
	322	__u32 reqid;
	323	__u16 family;
7e49e6de	324	__u8 mode; /* XFRM_MODE_xxx */
1da177e4 LT	325	__u8 replay_window;
	326	__u8 flags;
	327	#define XFRM_STATE_NOECN 1
	328	#define XFRM_STATE_DECAP_DSCP 2
dd87147e	329	#define XFRM_STATE_NOPMTUDISC 4
fbd9a5b4	330	#define XFRM_STATE_WILDRECV 8
1da177e4 LT	331	};
	332
	333	struct xfrm_usersa_id {
	334	xfrm_address_t daddr;
9916ecb0	335	__be32 spi;
1da177e4 LT	336	__u16 family;
	337	__u8 proto;
	338	};
	339
f8cd5488	340	struct xfrm_aevent_id {
f8cd5488	341	struct xfrm_usersa_id sa_id;
2b5f6dcc	342	xfrm_address_t saddr;
4bf07ef3	343	__u32 flags;
2b5f6dcc	344	__u32 reqid;
f8cd5488 JHS	345	};
f8cd5488 JHS	346
1da177e4 LT	347	struct xfrm_userspi_info {
	348	struct xfrm_usersa_info info;
	349	__u32 min;
	350	__u32 max;
	351	};
	352
	353	struct xfrm_userpolicy_info {
	354	struct xfrm_selector sel;
	355	struct xfrm_lifetime_cfg lft;
	356	struct xfrm_lifetime_cur curlft;
	357	__u32 priority;
	358	__u32 index;
	359	__u8 dir;
	360	__u8 action;
	361	#define XFRM_POLICY_ALLOW 0
	362	#define XFRM_POLICY_BLOCK 1
	363	__u8 flags;
	364	#define XFRM_POLICY_LOCALOK 1 /* Allow user to override global policy */
	365	__u8 share;
	366	};
	367
	368	struct xfrm_userpolicy_id {
	369	struct xfrm_selector sel;
	370	__u32 index;
	371	__u8 dir;
	372	};
	373
	374	struct xfrm_user_acquire {
	375	struct xfrm_id id;
	376	xfrm_address_t saddr;
	377	struct xfrm_selector sel;
	378	struct xfrm_userpolicy_info policy;
	379	__u32 aalgos;
	380	__u32 ealgos;
	381	__u32 calgos;
	382	__u32 seq;
	383	};
	384
	385	struct xfrm_user_expire {
	386	struct xfrm_usersa_info state;
	387	__u8 hard;
	388	};
	389
	390	struct xfrm_user_polexpire {
	391	struct xfrm_userpolicy_info pol;
	392	__u8 hard;
	393	};
	394
	395	struct xfrm_usersa_flush {
	396	__u8 proto;
	397	};
	398
97a64b45 MN	399	struct xfrm_user_report {
	400	__u8 proto;
	401	struct xfrm_selector sel;
	402	};
	403
80c9abaa SS	404	struct xfrm_user_migrate {
	405	xfrm_address_t old_daddr;
	406	xfrm_address_t old_saddr;
	407	xfrm_address_t new_daddr;
	408	xfrm_address_t new_saddr;
	409	__u8 proto;
	410	__u8 mode;
	411	__u16 reserved;
	412	__u32 reqid;
	413	__u16 old_family;
	414	__u16 new_family;
	415	};
	416
ac6d439d PM	417	#ifndef __KERNEL__
ac6d439d PM	418	/* backwards compatibility for userspace */
1da177e4 LT	419	#define XFRMGRP_ACQUIRE 1
1da177e4 LT	420	#define XFRMGRP_EXPIRE 2
26b15dad JHS	421	#define XFRMGRP_SA 4
26b15dad JHS	422	#define XFRMGRP_POLICY 8
93366c53	423	#define XFRMGRP_REPORT 0x20
ac6d439d PM	424	#endif
	425
	426	enum xfrm_nlgroups {
	427	XFRMNLGRP_NONE,
	428	#define XFRMNLGRP_NONE XFRMNLGRP_NONE
	429	XFRMNLGRP_ACQUIRE,
	430	#define XFRMNLGRP_ACQUIRE XFRMNLGRP_ACQUIRE
	431	XFRMNLGRP_EXPIRE,
	432	#define XFRMNLGRP_EXPIRE XFRMNLGRP_EXPIRE
	433	XFRMNLGRP_SA,
	434	#define XFRMNLGRP_SA XFRMNLGRP_SA
	435	XFRMNLGRP_POLICY,
	436	#define XFRMNLGRP_POLICY XFRMNLGRP_POLICY
f8cd5488 JHS	437	XFRMNLGRP_AEVENTS,
f8cd5488 JHS	438	#define XFRMNLGRP_AEVENTS XFRMNLGRP_AEVENTS
97a64b45 MN	439	XFRMNLGRP_REPORT,
97a64b45 MN	440	#define XFRMNLGRP_REPORT XFRMNLGRP_REPORT
80c9abaa SS	441	XFRMNLGRP_MIGRATE,
80c9abaa SS	442	#define XFRMNLGRP_MIGRATE XFRMNLGRP_MIGRATE
ac6d439d PM	443	__XFRMNLGRP_MAX
	444	};
	445	#define XFRMNLGRP_MAX (__XFRMNLGRP_MAX - 1)
1da177e4 LT	446
1da177e4 LT	447	#endif /* _LINUX_XFRM_H */