[mirror_ubuntu-bionic-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];
	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,
	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_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,
4c563f76 TT	116	XFRM_POLICY_TYPE_MAX = 2,
4c563f76 TT	117	XFRM_POLICY_TYPE_ANY = 255
4e81bb83 MN	118	};
4e81bb83 MN	119
1da177e4 LT	120	enum
	121	{
	122	XFRM_POLICY_IN = 0,
	123	XFRM_POLICY_OUT = 1,
	124	XFRM_POLICY_FWD = 2,
d5422efe	125	XFRM_POLICY_MASK = 3,
1da177e4 LT	126	XFRM_POLICY_MAX = 3
	127	};
	128
	129	enum
	130	{
	131	XFRM_SHARE_ANY, /* No limitations */
	132	XFRM_SHARE_SESSION, /* For this session only */
	133	XFRM_SHARE_USER, /* For this user only */
	134	XFRM_SHARE_UNIQUE /* Use once */
	135	};
	136
b59f45d0 HX	137	#define XFRM_MODE_TRANSPORT 0
b59f45d0 HX	138	#define XFRM_MODE_TUNNEL 1
7e49e6de MN	139	#define XFRM_MODE_ROUTEOPTIMIZATION 2
7e49e6de MN	140	#define XFRM_MODE_IN_TRIGGER 3
0a69452c DB	141	#define XFRM_MODE_BEET 4
0a69452c DB	142	#define XFRM_MODE_MAX 5
b59f45d0	143
1da177e4 LT	144	/* Netlink configuration messages. */
	145	enum {
	146	XFRM_MSG_BASE = 0x10,
	147
	148	XFRM_MSG_NEWSA = 0x10,
	149	#define XFRM_MSG_NEWSA XFRM_MSG_NEWSA
	150	XFRM_MSG_DELSA,
	151	#define XFRM_MSG_DELSA XFRM_MSG_DELSA
	152	XFRM_MSG_GETSA,
	153	#define XFRM_MSG_GETSA XFRM_MSG_GETSA
	154
	155	XFRM_MSG_NEWPOLICY,
	156	#define XFRM_MSG_NEWPOLICY XFRM_MSG_NEWPOLICY
	157	XFRM_MSG_DELPOLICY,
	158	#define XFRM_MSG_DELPOLICY XFRM_MSG_DELPOLICY
	159	XFRM_MSG_GETPOLICY,
	160	#define XFRM_MSG_GETPOLICY XFRM_MSG_GETPOLICY
	161
	162	XFRM_MSG_ALLOCSPI,
	163	#define XFRM_MSG_ALLOCSPI XFRM_MSG_ALLOCSPI
	164	XFRM_MSG_ACQUIRE,
	165	#define XFRM_MSG_ACQUIRE XFRM_MSG_ACQUIRE
	166	XFRM_MSG_EXPIRE,
	167	#define XFRM_MSG_EXPIRE XFRM_MSG_EXPIRE
	168
	169	XFRM_MSG_UPDPOLICY,
	170	#define XFRM_MSG_UPDPOLICY XFRM_MSG_UPDPOLICY
	171	XFRM_MSG_UPDSA,
	172	#define XFRM_MSG_UPDSA XFRM_MSG_UPDSA
	173
	174	XFRM_MSG_POLEXPIRE,
	175	#define XFRM_MSG_POLEXPIRE XFRM_MSG_POLEXPIRE
	176
	177	XFRM_MSG_FLUSHSA,
	178	#define XFRM_MSG_FLUSHSA XFRM_MSG_FLUSHSA
	179	XFRM_MSG_FLUSHPOLICY,
	180	#define XFRM_MSG_FLUSHPOLICY XFRM_MSG_FLUSHPOLICY
	181
f8cd5488 JHS	182	XFRM_MSG_NEWAE,
	183	#define XFRM_MSG_NEWAE XFRM_MSG_NEWAE
	184	XFRM_MSG_GETAE,
	185	#define XFRM_MSG_GETAE XFRM_MSG_GETAE
97a64b45 MN	186
	187	XFRM_MSG_REPORT,
	188	#define XFRM_MSG_REPORT XFRM_MSG_REPORT
	189
80c9abaa SS	190	XFRM_MSG_MIGRATE,
	191	#define XFRM_MSG_MIGRATE XFRM_MSG_MIGRATE
	192
28d8909b JHS	193	XFRM_MSG_NEWSADINFO,
	194	#define XFRM_MSG_NEWSADINFO XFRM_MSG_NEWSADINFO
	195	XFRM_MSG_GETSADINFO,
	196	#define XFRM_MSG_GETSADINFO XFRM_MSG_GETSADINFO
ecfd6b18 JHS	197
	198	XFRM_MSG_NEWSPDINFO,
	199	#define XFRM_MSG_NEWSPDINFO XFRM_MSG_NEWSPDINFO
	200	XFRM_MSG_GETSPDINFO,
	201	#define XFRM_MSG_GETSPDINFO XFRM_MSG_GETSPDINFO
526bdb80	202	__XFRM_MSG_MAX
1da177e4	203	};
526bdb80	204	#define XFRM_MSG_MAX (__XFRM_MSG_MAX - 1)
1da177e4	205
492b558b TG	206	#define XFRM_NR_MSGTYPES (XFRM_MSG_MAX + 1 - XFRM_MSG_BASE)
492b558b TG	207
df71837d TJ	208	/*
	209	* Generic LSM security context for comunicating to user space
	210	* NOTE: Same format as sadb_x_sec_ctx
	211	*/
	212	struct xfrm_user_sec_ctx {
	213	__u16 len;
	214	__u16 exttype;
	215	__u8 ctx_alg; /* LSMs: e.g., selinux == 1 */
	216	__u8 ctx_doi;
	217	__u16 ctx_len;
	218	};
	219
1da177e4 LT	220	struct xfrm_user_tmpl {
	221	struct xfrm_id id;
	222	__u16 family;
	223	xfrm_address_t saddr;
	224	__u32 reqid;
	225	__u8 mode;
	226	__u8 share;
	227	__u8 optional;
	228	__u32 aalgos;
	229	__u32 ealgos;
	230	__u32 calgos;
	231	};
	232
	233	struct xfrm_encap_tmpl {
	234	__u16 encap_type;
d5a0a1e3 AV	235	__be16 encap_sport;
d5a0a1e3 AV	236	__be16 encap_dport;
1da177e4 LT	237	xfrm_address_t encap_oa;
	238	};
	239
f8cd5488 JHS	240	/* AEVENT flags */
	241	enum xfrm_ae_ftype_t {
	242	XFRM_AE_UNSPEC,
	243	XFRM_AE_RTHR=1, /* replay threshold*/
	244	XFRM_AE_RVAL=2, /* replay value */
	245	XFRM_AE_LVAL=4, /* lifetime value */
	246	XFRM_AE_ETHR=8, /* expiry timer threshold */
	247	XFRM_AE_CR=16, /* Event cause is replay update */
	248	XFRM_AE_CE=32, /* Event cause is timer expiry */
	249	XFRM_AE_CU=64, /* Event cause is policy update */
	250	__XFRM_AE_MAX
	251
	252	#define XFRM_AE_MAX (__XFRM_AE_MAX - 1)
	253	};
	254
f7b6983f MN	255	struct xfrm_userpolicy_type {
	256	__u8 type;
	257	__u16 reserved1;
	258	__u8 reserved2;
	259	};
	260
1da177e4 LT	261	/* Netlink message attributes. */
	262	enum xfrm_attr_type_t {
	263	XFRMA_UNSPEC,
	264	XFRMA_ALG_AUTH, /* struct xfrm_algo */
	265	XFRMA_ALG_CRYPT, /* struct xfrm_algo */
	266	XFRMA_ALG_COMP, /* struct xfrm_algo */
	267	XFRMA_ENCAP, /* struct xfrm_algo + struct xfrm_encap_tmpl */
	268	XFRMA_TMPL, /* 1 or more struct xfrm_user_tmpl */
0603eac0 HX	269	XFRMA_SA,
0603eac0 HX	270	XFRMA_POLICY,
df71837d	271	XFRMA_SEC_CTX, /* struct xfrm_sec_ctx */
f8cd5488 JHS	272	XFRMA_LTIME_VAL,
	273	XFRMA_REPLAY_VAL,
	274	XFRMA_REPLAY_THRESH,
	275	XFRMA_ETIMER_THRESH,
eb2971b6	276	XFRMA_SRCADDR, /* xfrm_address_t */
060f02a3	277	XFRMA_COADDR, /* xfrm_address_t */
9afaca05	278	XFRMA_LASTUSED,
f7b6983f	279	XFRMA_POLICY_TYPE, /* struct xfrm_userpolicy_type */
80c9abaa	280	XFRMA_MIGRATE,
1a6509d9	281	XFRMA_ALG_AEAD, /* struct xfrm_algo_aead */
1da177e4 LT	282	__XFRMA_MAX
	283
	284	#define XFRMA_MAX (__XFRMA_MAX - 1)
	285	};
	286
28d8909b JHS	287	enum xfrm_sadattr_type_t {
28d8909b JHS	288	XFRMA_SAD_UNSPEC,
af11e316 JHS	289	XFRMA_SAD_CNT,
af11e316 JHS	290	XFRMA_SAD_HINFO,
28d8909b JHS	291	__XFRMA_SAD_MAX
	292
	293	#define XFRMA_SAD_MAX (__XFRMA_SAD_MAX - 1)
	294	};
	295
af11e316 JHS	296	struct xfrmu_sadhinfo {
	297	__u32 sadhcnt; /* current hash bkts */
	298	__u32 sadhmcnt; /* max allowed hash bkts */
	299	};
	300
ecfd6b18 JHS	301	enum xfrm_spdattr_type_t {
ecfd6b18 JHS	302	XFRMA_SPD_UNSPEC,
5a6d3416 JHS	303	XFRMA_SPD_INFO,
5a6d3416 JHS	304	XFRMA_SPD_HINFO,
ecfd6b18 JHS	305	__XFRMA_SPD_MAX
	306
	307	#define XFRMA_SPD_MAX (__XFRMA_SPD_MAX - 1)
	308	};
	309
5a6d3416 JHS	310	struct xfrmu_spdinfo {
	311	__u32 incnt;
	312	__u32 outcnt;
	313	__u32 fwdcnt;
	314	__u32 inscnt;
	315	__u32 outscnt;
	316	__u32 fwdscnt;
	317	};
	318
	319	struct xfrmu_spdhinfo {
	320	__u32 spdhcnt;
	321	__u32 spdhmcnt;
	322	};
	323
1da177e4 LT	324	struct xfrm_usersa_info {
	325	struct xfrm_selector sel;
	326	struct xfrm_id id;
	327	xfrm_address_t saddr;
	328	struct xfrm_lifetime_cfg lft;
	329	struct xfrm_lifetime_cur curlft;
	330	struct xfrm_stats stats;
	331	__u32 seq;
	332	__u32 reqid;
	333	__u16 family;
7e49e6de	334	__u8 mode; /* XFRM_MODE_xxx */
1da177e4 LT	335	__u8 replay_window;
	336	__u8 flags;
	337	#define XFRM_STATE_NOECN 1
	338	#define XFRM_STATE_DECAP_DSCP 2
dd87147e	339	#define XFRM_STATE_NOPMTUDISC 4
fbd9a5b4	340	#define XFRM_STATE_WILDRECV 8
8b7817f3	341	#define XFRM_STATE_ICMP 16
1da177e4 LT	342	};
	343
	344	struct xfrm_usersa_id {
	345	xfrm_address_t daddr;
9916ecb0	346	__be32 spi;
1da177e4 LT	347	__u16 family;
	348	__u8 proto;
	349	};
	350
f8cd5488	351	struct xfrm_aevent_id {
f8cd5488	352	struct xfrm_usersa_id sa_id;
2b5f6dcc	353	xfrm_address_t saddr;
4bf07ef3	354	__u32 flags;
2b5f6dcc	355	__u32 reqid;
f8cd5488 JHS	356	};
f8cd5488 JHS	357
1da177e4 LT	358	struct xfrm_userspi_info {
	359	struct xfrm_usersa_info info;
	360	__u32 min;
	361	__u32 max;
	362	};
	363
	364	struct xfrm_userpolicy_info {
	365	struct xfrm_selector sel;
	366	struct xfrm_lifetime_cfg lft;
	367	struct xfrm_lifetime_cur curlft;
	368	__u32 priority;
	369	__u32 index;
	370	__u8 dir;
	371	__u8 action;
	372	#define XFRM_POLICY_ALLOW 0
	373	#define XFRM_POLICY_BLOCK 1
	374	__u8 flags;
	375	#define XFRM_POLICY_LOCALOK 1 /* Allow user to override global policy */
8b7817f3 HX	376	/* Automatically expand selector to include matching ICMP payloads. */
8b7817f3 HX	377	#define XFRM_POLICY_ICMP 2
1da177e4 LT	378	__u8 share;
	379	};
	380
	381	struct xfrm_userpolicy_id {
	382	struct xfrm_selector sel;
	383	__u32 index;
	384	__u8 dir;
	385	};
	386
	387	struct xfrm_user_acquire {
	388	struct xfrm_id id;
	389	xfrm_address_t saddr;
	390	struct xfrm_selector sel;
	391	struct xfrm_userpolicy_info policy;
	392	__u32 aalgos;
	393	__u32 ealgos;
	394	__u32 calgos;
	395	__u32 seq;
	396	};
	397
	398	struct xfrm_user_expire {
	399	struct xfrm_usersa_info state;
	400	__u8 hard;
	401	};
	402
	403	struct xfrm_user_polexpire {
	404	struct xfrm_userpolicy_info pol;
	405	__u8 hard;
	406	};
	407
	408	struct xfrm_usersa_flush {
	409	__u8 proto;
	410	};
	411
97a64b45 MN	412	struct xfrm_user_report {
	413	__u8 proto;
	414	struct xfrm_selector sel;
	415	};
	416
80c9abaa SS	417	struct xfrm_user_migrate {
	418	xfrm_address_t old_daddr;
	419	xfrm_address_t old_saddr;
	420	xfrm_address_t new_daddr;
	421	xfrm_address_t new_saddr;
	422	__u8 proto;
	423	__u8 mode;
	424	__u16 reserved;
	425	__u32 reqid;
	426	__u16 old_family;
	427	__u16 new_family;
	428	};
	429
ac6d439d PM	430	#ifndef __KERNEL__
ac6d439d PM	431	/* backwards compatibility for userspace */
1da177e4 LT	432	#define XFRMGRP_ACQUIRE 1
1da177e4 LT	433	#define XFRMGRP_EXPIRE 2
26b15dad JHS	434	#define XFRMGRP_SA 4
26b15dad JHS	435	#define XFRMGRP_POLICY 8
93366c53	436	#define XFRMGRP_REPORT 0x20
ac6d439d PM	437	#endif
	438
	439	enum xfrm_nlgroups {
	440	XFRMNLGRP_NONE,
	441	#define XFRMNLGRP_NONE XFRMNLGRP_NONE
	442	XFRMNLGRP_ACQUIRE,
	443	#define XFRMNLGRP_ACQUIRE XFRMNLGRP_ACQUIRE
	444	XFRMNLGRP_EXPIRE,
	445	#define XFRMNLGRP_EXPIRE XFRMNLGRP_EXPIRE
	446	XFRMNLGRP_SA,
	447	#define XFRMNLGRP_SA XFRMNLGRP_SA
	448	XFRMNLGRP_POLICY,
	449	#define XFRMNLGRP_POLICY XFRMNLGRP_POLICY
f8cd5488 JHS	450	XFRMNLGRP_AEVENTS,
f8cd5488 JHS	451	#define XFRMNLGRP_AEVENTS XFRMNLGRP_AEVENTS
97a64b45 MN	452	XFRMNLGRP_REPORT,
97a64b45 MN	453	#define XFRMNLGRP_REPORT XFRMNLGRP_REPORT
80c9abaa SS	454	XFRMNLGRP_MIGRATE,
80c9abaa SS	455	#define XFRMNLGRP_MIGRATE XFRMNLGRP_MIGRATE
ac6d439d PM	456	__XFRMNLGRP_MAX
	457	};
	458	#define XFRMNLGRP_MAX (__XFRMNLGRP_MAX - 1)
1da177e4 LT	459
1da177e4 LT	460	#endif /* _LINUX_XFRM_H */