[thirdparty/strongswan.git] / src / 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;
	__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_state_esn */
	XFRMA_SA_EXTRA_FLAGS,	/* __u32 */
	XFRMA_PROTO,		/* __u8 */
	XFRMA_ADDRESS_FILTER,	/* struct xfrm_address_filter */
	XFRMA_PAD,
	XFRMA_OFFLOAD_DEV,	/* struct xfrm_state_offload */
	XFRMA_SET_MARK,		/* __u32 */
	XFRMA_SET_MARK_MASK,	/* __u32 */
	XFRMA_IF_ID,		/* __u32 */
	__XFRMA_MAX

#define XFRMA_OUTPUT_MARK XFRMA_SET_MARK	/* Compatibility */
#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_IPV4_HTHRESH,
	XFRMA_SPD_IPV6_HTHRESH,
	__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 xfrmu_spdhthresh {
	__u8 lbits;
	__u8 rbits;
};

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;
};

struct xfrm_user_offload {
	int				ifindex;
	__u8				flags;
};
#define XFRM_OFFLOAD_IPV6	1
#define XFRM_OFFLOAD_INBOUND	2

#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
04a7b6d8 MW	1	#ifndef _LINUX_XFRM_H
	2	#define _LINUX_XFRM_H
	3
a26b6acf	4	#include <linux/types.h>
04a7b6d8 MW	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	*/
f031e41b	13	typedef union {
5a9f62a7 TB	14	__be32 a4;
5a9f62a7 TB	15	__be32 a6[4];
04a7b6d8 MW	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	*/
f031e41b	22	struct xfrm_id {
04a7b6d8	23	xfrm_address_t daddr;
5a9f62a7	24	__be32 spi;
a26b6acf	25	__u8 proto;
04a7b6d8 MW	26	};
	27
	28	struct xfrm_sec_ctx {
a26b6acf AS	29	__u8 ctx_doi;
	30	__u8 ctx_alg;
	31	__u16 ctx_len;
	32	__u32 ctx_sid;
	33	char ctx_str[0];
04a7b6d8 MW	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
	44	/* Selector, used as selector both on policy rules (SPD) and SAs. */
	45
f031e41b	46	struct xfrm_selector {
04a7b6d8 MW	47	xfrm_address_t daddr;
04a7b6d8 MW	48	xfrm_address_t saddr;
5a9f62a7 TB	49	__be16 dport;
	50	__be16 dport_mask;
	51	__be16 sport;
	52	__be16 sport_mask;
a26b6acf AS	53	__u16 family;
	54	__u8 prefixlen_d;
	55	__u8 prefixlen_s;
	56	__u8 proto;
04a7b6d8	57	int ifindex;
2379fdba	58	__kernel_uid32_t user;
04a7b6d8 MW	59	};
04a7b6d8 MW	60
a26b6acf	61	#define XFRM_INF (~(__u64)0)
04a7b6d8	62
f031e41b	63	struct xfrm_lifetime_cfg {
a26b6acf AS	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;
04a7b6d8 MW	72	};
04a7b6d8 MW	73
f031e41b	74	struct xfrm_lifetime_cur {
a26b6acf AS	75	__u64 bytes;
	76	__u64 packets;
	77	__u64 add_time;
	78	__u64 use_time;
04a7b6d8 MW	79	};
04a7b6d8 MW	80
f031e41b	81	struct xfrm_replay_state {
a26b6acf AS	82	__u32 oseq;
	83	__u32 seq;
	84	__u32 bitmap;
04a7b6d8 MW	85	};
04a7b6d8 MW	86
dbff6373 MW	87	#define XFRMA_REPLAY_ESN_MAX 4096
dbff6373 MW	88
f7925cad MW	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
04a7b6d8	99	struct xfrm_algo {
5a9f62a7 TB	100	char alg_name[64];
	101	unsigned int alg_key_len; /* in bits */
	102	char alg_key[0];
	103	};
	104
2379fdba 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
5a9f62a7	112	struct xfrm_algo_aead {
aa9a3006 MW	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];
04a7b6d8 MW	117	};
	118
	119	struct xfrm_stats {
a26b6acf AS	120	__u32 replay_window;
	121	__u32 replay;
	122	__u32 integrity_failed;
04a7b6d8 MW	123	};
04a7b6d8 MW	124
f031e41b	125	enum {
5a9f62a7 TB	126	XFRM_POLICY_TYPE_MAIN = 0,
5a9f62a7 TB	127	XFRM_POLICY_TYPE_SUB = 1,
aa9a3006 MW	128	XFRM_POLICY_TYPE_MAX = 2,
aa9a3006 MW	129	XFRM_POLICY_TYPE_ANY = 255
5a9f62a7 TB	130	};
5a9f62a7 TB	131
f031e41b	132	enum {
04a7b6d8 MW	133	XFRM_POLICY_IN = 0,
	134	XFRM_POLICY_OUT = 1,
	135	XFRM_POLICY_FWD = 2,
5a9f62a7	136	XFRM_POLICY_MASK = 3,
04a7b6d8 MW	137	XFRM_POLICY_MAX = 3
	138	};
	139
f031e41b	140	enum {
04a7b6d8 MW	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
5a9f62a7 TB	147	#define XFRM_MODE_TRANSPORT 0
	148	#define XFRM_MODE_TUNNEL 1
	149	#define XFRM_MODE_ROUTEOPTIMIZATION 2
	150	#define XFRM_MODE_IN_TRIGGER 3
	151	#define XFRM_MODE_BEET 4
	152	#define XFRM_MODE_MAX 5
	153
04a7b6d8 MW	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
	192	XFRM_MSG_NEWAE,
	193	#define XFRM_MSG_NEWAE XFRM_MSG_NEWAE
	194	XFRM_MSG_GETAE,
	195	#define XFRM_MSG_GETAE XFRM_MSG_GETAE
5a9f62a7 TB	196
	197	XFRM_MSG_REPORT,
	198	#define XFRM_MSG_REPORT XFRM_MSG_REPORT
	199
	200	XFRM_MSG_MIGRATE,
	201	#define XFRM_MSG_MIGRATE XFRM_MSG_MIGRATE
	202
	203	XFRM_MSG_NEWSADINFO,
	204	#define XFRM_MSG_NEWSADINFO XFRM_MSG_NEWSADINFO
	205	XFRM_MSG_GETSADINFO,
	206	#define XFRM_MSG_GETSADINFO XFRM_MSG_GETSADINFO
	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
aa9a3006 MW	212
	213	XFRM_MSG_MAPPING,
	214	#define XFRM_MSG_MAPPING XFRM_MSG_MAPPING
04a7b6d8 MW	215	__XFRM_MSG_MAX
	216	};
	217	#define XFRM_MSG_MAX (__XFRM_MSG_MAX - 1)
	218
	219	#define XFRM_NR_MSGTYPES (XFRM_MSG_MAX + 1 - XFRM_MSG_BASE)
	220
	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 {
a26b6acf AS	226	__u16 len;
	227	__u16 exttype;
	228	__u8 ctx_alg; /* LSMs: e.g., selinux == 1 */
	229	__u8 ctx_doi;
	230	__u16 ctx_len;
04a7b6d8 MW	231	};
	232
	233	struct xfrm_user_tmpl {
a26b6acf AS	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;
04a7b6d8 MW	244	};
	245
	246	struct xfrm_encap_tmpl {
a26b6acf	247	__u16 encap_type;
5a9f62a7 TB	248	__be16 encap_sport;
5a9f62a7 TB	249	__be16 encap_dport;
04a7b6d8 MW	250	xfrm_address_t encap_oa;
	251	};
	252
	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
5a9f62a7 TB	268	struct xfrm_userpolicy_type {
	269	__u8 type;
	270	__u16 reserved1;
	271	__u8 reserved2;
	272	};
	273
04a7b6d8 MW	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 */
f031e41b AS	282	XFRMA_SA, /* struct xfrm_usersa_info */
f031e41b AS	283	XFRMA_POLICY, /struct xfrm_userpolicy_info /
04a7b6d8 MW	284	XFRMA_SEC_CTX, /* struct xfrm_sec_ctx */
	285	XFRMA_LTIME_VAL,
	286	XFRMA_REPLAY_VAL,
	287	XFRMA_REPLAY_THRESH,
	288	XFRMA_ETIMER_THRESH,
5a9f62a7 TB	289	XFRMA_SRCADDR, /* xfrm_address_t */
5a9f62a7 TB	290	XFRMA_COADDR, /* xfrm_address_t */
f031e41b	291	XFRMA_LASTUSED, /* unsigned long */
5a9f62a7 TB	292	XFRMA_POLICY_TYPE, /* struct xfrm_userpolicy_type */
	293	XFRMA_MIGRATE,
	294	XFRMA_ALG_AEAD, /* struct xfrm_algo_aead */
217d95c8	295	XFRMA_KMADDRESS, /* struct xfrm_user_kmaddress */
2379fdba	296	XFRMA_ALG_AUTH_TRUNC, /* struct xfrm_algo_auth */
f031e41b	297	XFRMA_MARK, /* struct xfrm_mark */
d86bb6ef	298	XFRMA_TFCPAD, /* __u32 */
5bfae686	299	XFRMA_REPLAY_ESN_VAL, /* struct xfrm_replay_state_esn */
dbff6373 MW	300	XFRMA_SA_EXTRA_FLAGS, /* __u32 */
	301	XFRMA_PROTO, /* __u8 */
	302	XFRMA_ADDRESS_FILTER, /* struct xfrm_address_filter */
5bfae686 TB	303	XFRMA_PAD,
5bfae686 TB	304	XFRMA_OFFLOAD_DEV, /* struct xfrm_state_offload */
9cee688f TB	305	XFRMA_SET_MARK, /* __u32 */
9cee688f TB	306	XFRMA_SET_MARK_MASK, /* __u32 */
d1cd2a05	307	XFRMA_IF_ID, /* __u32 */
04a7b6d8 MW	308	__XFRMA_MAX
04a7b6d8 MW	309
9cee688f	310	#define XFRMA_OUTPUT_MARK XFRMA_SET_MARK /* Compatibility */
04a7b6d8 MW	311	#define XFRMA_MAX (__XFRMA_MAX - 1)
	312	};
	313
f031e41b AS	314	struct xfrm_mark {
	315	__u32 v; /* value */
	316	__u32 m; /* mask */
	317	};
	318
5a9f62a7 TB	319	enum xfrm_sadattr_type_t {
	320	XFRMA_SAD_UNSPEC,
	321	XFRMA_SAD_CNT,
	322	XFRMA_SAD_HINFO,
	323	__XFRMA_SAD_MAX
	324
	325	#define XFRMA_SAD_MAX (__XFRMA_SAD_MAX - 1)
	326	};
	327
	328	struct xfrmu_sadhinfo {
	329	__u32 sadhcnt; /* current hash bkts */
	330	__u32 sadhmcnt; /* max allowed hash bkts */
	331	};
	332
	333	enum xfrm_spdattr_type_t {
	334	XFRMA_SPD_UNSPEC,
	335	XFRMA_SPD_INFO,
	336	XFRMA_SPD_HINFO,
dbff6373 MW	337	XFRMA_SPD_IPV4_HTHRESH,
dbff6373 MW	338	XFRMA_SPD_IPV6_HTHRESH,
5a9f62a7 TB	339	__XFRMA_SPD_MAX
	340
	341	#define XFRMA_SPD_MAX (__XFRMA_SPD_MAX - 1)
	342	};
	343
	344	struct xfrmu_spdinfo {
	345	__u32 incnt;
	346	__u32 outcnt;
	347	__u32 fwdcnt;
	348	__u32 inscnt;
	349	__u32 outscnt;
	350	__u32 fwdscnt;
	351	};
	352
	353	struct xfrmu_spdhinfo {
	354	__u32 spdhcnt;
	355	__u32 spdhmcnt;
	356	};
	357
dbff6373 MW	358	struct xfrmu_spdhthresh {
	359	__u8 lbits;
	360	__u8 rbits;
	361	};
	362
04a7b6d8 MW	363	struct xfrm_usersa_info {
04a7b6d8 MW	364	struct xfrm_selector sel;
a26b6acf AS	365	struct xfrm_id id;
a26b6acf AS	366	xfrm_address_t saddr;
04a7b6d8 MW	367	struct xfrm_lifetime_cfg lft;
04a7b6d8 MW	368	struct xfrm_lifetime_cur curlft;
a26b6acf AS	369	struct xfrm_stats stats;
	370	__u32 seq;
	371	__u32 reqid;
	372	__u16 family;
5a9f62a7	373	__u8 mode; /* XFRM_MODE_xxx */
a26b6acf AS	374	__u8 replay_window;
a26b6acf AS	375	__u8 flags;
04a7b6d8 MW	376	#define XFRM_STATE_NOECN 1
	377	#define XFRM_STATE_DECAP_DSCP 2
	378	#define XFRM_STATE_NOPMTUDISC 4
5a9f62a7 TB	379	#define XFRM_STATE_WILDRECV 8
5a9f62a7 TB	380	#define XFRM_STATE_ICMP 16
eb0cc338	381	#define XFRM_STATE_AF_UNSPEC 32
f7925cad MW	382	#define XFRM_STATE_ALIGN4 64
f7925cad MW	383	#define XFRM_STATE_ESN 128
04a7b6d8 MW	384	};
04a7b6d8 MW	385
dbff6373 MW	386	#define XFRM_SA_XFLAG_DONT_ENCAP_DSCP 1
dbff6373 MW	387
04a7b6d8	388	struct xfrm_usersa_id {
a26b6acf	389	xfrm_address_t daddr;
5a9f62a7	390	__be32 spi;
a26b6acf AS	391	__u16 family;
a26b6acf AS	392	__u8 proto;
04a7b6d8 MW	393	};
	394
	395	struct xfrm_aevent_id {
a26b6acf	396	struct xfrm_usersa_id sa_id;
5a9f62a7	397	xfrm_address_t saddr;
a26b6acf	398	__u32 flags;
5a9f62a7	399	__u32 reqid;
04a7b6d8 MW	400	};
	401
	402	struct xfrm_userspi_info {
a26b6acf AS	403	struct xfrm_usersa_info info;
	404	__u32 min;
	405	__u32 max;
04a7b6d8 MW	406	};
	407
	408	struct xfrm_userpolicy_info {
	409	struct xfrm_selector sel;
	410	struct xfrm_lifetime_cfg lft;
	411	struct xfrm_lifetime_cur curlft;
a26b6acf AS	412	__u32 priority;
	413	__u32 index;
	414	__u8 dir;
	415	__u8 action;
04a7b6d8 MW	416	#define XFRM_POLICY_ALLOW 0
04a7b6d8 MW	417	#define XFRM_POLICY_BLOCK 1
a26b6acf	418	__u8 flags;
04a7b6d8	419	#define XFRM_POLICY_LOCALOK 1 /* Allow user to override global policy */
5a9f62a7 TB	420	/* Automatically expand selector to include matching ICMP payloads. */
5a9f62a7 TB	421	#define XFRM_POLICY_ICMP 2
a26b6acf	422	__u8 share;
04a7b6d8 MW	423	};
	424
	425	struct xfrm_userpolicy_id {
a26b6acf AS	426	struct xfrm_selector sel;
	427	__u32 index;
	428	__u8 dir;
04a7b6d8 MW	429	};
	430
	431	struct xfrm_user_acquire {
a26b6acf AS	432	struct xfrm_id id;
a26b6acf AS	433	xfrm_address_t saddr;
04a7b6d8 MW	434	struct xfrm_selector sel;
04a7b6d8 MW	435	struct xfrm_userpolicy_info policy;
a26b6acf AS	436	__u32 aalgos;
	437	__u32 ealgos;
	438	__u32 calgos;
	439	__u32 seq;
04a7b6d8 MW	440	};
	441
	442	struct xfrm_user_expire {
	443	struct xfrm_usersa_info state;
a26b6acf	444	__u8 hard;
04a7b6d8 MW	445	};
	446
	447	struct xfrm_user_polexpire {
	448	struct xfrm_userpolicy_info pol;
a26b6acf	449	__u8 hard;
04a7b6d8 MW	450	};
	451
	452	struct xfrm_usersa_flush {
a26b6acf	453	__u8 proto;
04a7b6d8 MW	454	};
04a7b6d8 MW	455
5a9f62a7 TB	456	struct xfrm_user_report {
	457	__u8 proto;
	458	struct xfrm_selector sel;
	459	};
	460
217d95c8 AS	461	/* Used by MIGRATE to pass addresses IKE should use to perform
	462	* SA negotiation with the peer */
	463	struct xfrm_user_kmaddress {
	464	xfrm_address_t local;
	465	xfrm_address_t remote;
	466	__u32 reserved;
	467	__u16 family;
	468	};
	469
5a9f62a7 TB	470	struct xfrm_user_migrate {
	471	xfrm_address_t old_daddr;
	472	xfrm_address_t old_saddr;
	473	xfrm_address_t new_daddr;
	474	xfrm_address_t new_saddr;
	475	__u8 proto;
	476	__u8 mode;
	477	__u16 reserved;
	478	__u32 reqid;
	479	__u16 old_family;
	480	__u16 new_family;
	481	};
	482
aa9a3006 MW	483	struct xfrm_user_mapping {
	484	struct xfrm_usersa_id id;
	485	__u32 reqid;
	486	xfrm_address_t old_saddr;
	487	xfrm_address_t new_saddr;
	488	__be16 old_sport;
	489	__be16 new_sport;
	490	};
	491
dbff6373 MW	492	struct xfrm_address_filter {
	493	xfrm_address_t saddr;
	494	xfrm_address_t daddr;
	495	__u16 family;
	496	__u8 splen;
	497	__u8 dplen;
	498	};
	499
5bfae686 TB	500	struct xfrm_user_offload {
	501	int ifindex;
	502	__u8 flags;
	503	};
	504	#define XFRM_OFFLOAD_IPV6 1
	505	#define XFRM_OFFLOAD_INBOUND 2
	506
a26b6acf	507	#ifndef __KERNEL__
04a7b6d8 MW	508	/* backwards compatibility for userspace */
	509	#define XFRMGRP_ACQUIRE 1
	510	#define XFRMGRP_EXPIRE 2
a26b6acf	511	#define XFRMGRP_SA 4
04a7b6d8	512	#define XFRMGRP_POLICY 8
5a9f62a7	513	#define XFRMGRP_REPORT 0x20
a26b6acf	514	#endif
04a7b6d8 MW	515
	516	enum xfrm_nlgroups {
	517	XFRMNLGRP_NONE,
	518	#define XFRMNLGRP_NONE XFRMNLGRP_NONE
	519	XFRMNLGRP_ACQUIRE,
	520	#define XFRMNLGRP_ACQUIRE XFRMNLGRP_ACQUIRE
	521	XFRMNLGRP_EXPIRE,
	522	#define XFRMNLGRP_EXPIRE XFRMNLGRP_EXPIRE
	523	XFRMNLGRP_SA,
	524	#define XFRMNLGRP_SA XFRMNLGRP_SA
	525	XFRMNLGRP_POLICY,
	526	#define XFRMNLGRP_POLICY XFRMNLGRP_POLICY
	527	XFRMNLGRP_AEVENTS,
	528	#define XFRMNLGRP_AEVENTS XFRMNLGRP_AEVENTS
5a9f62a7 TB	529	XFRMNLGRP_REPORT,
	530	#define XFRMNLGRP_REPORT XFRMNLGRP_REPORT
	531	XFRMNLGRP_MIGRATE,
	532	#define XFRMNLGRP_MIGRATE XFRMNLGRP_MIGRATE
aa9a3006 MW	533	XFRMNLGRP_MAPPING,
aa9a3006 MW	534	#define XFRMNLGRP_MAPPING XFRMNLGRP_MAPPING
04a7b6d8 MW	535	__XFRMNLGRP_MAX
	536	};
	537	#define XFRMNLGRP_MAX (__XFRMNLGRP_MAX - 1)
	538
	539	#endif /* _LINUX_XFRM_H */