[linux-block.git] / include / uapi / linux / xfrm.h

/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _LINUX_XFRM_H
#define _LINUX_XFRM_H

#include <linux/in6.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];
	struct in6_addr	in6;
} 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[];
};

/* 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[];
};

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

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[];
};

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[];
};

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_SETDEFAULT,
#define XFRM_MSG_SETDEFAULT XFRM_MSG_SETDEFAULT
	XFRM_MSG_GETDEFAULT,
#define XFRM_MSG_GETDEFAULT XFRM_MSG_GETDEFAULT
	__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_user_offload */
	XFRMA_SET_MARK,		/* __u32 */
	XFRMA_SET_MARK_MASK,	/* __u32 */
	XFRMA_IF_ID,		/* __u32 */
	XFRMA_MTIMER_THRESH,	/* __u32 in seconds for input SA */
	__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
#define XFRM_SA_XFLAG_OSEQ_MAY_WRAP	2

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;
};
/* This flag was exposed without any kernel code that supports it.
 * Unfortunately, strongswan has the code that sets this flag,
 * which makes it impossible to reuse this bit.
 *
 * So leave it here to make sure that it won't be reused by mistake.
 */
#define XFRM_OFFLOAD_IPV6	1
#define XFRM_OFFLOAD_INBOUND	2

struct xfrm_userpolicy_default {
#define XFRM_USERPOLICY_UNSPEC	0
#define XFRM_USERPOLICY_BLOCK	1
#define XFRM_USERPOLICY_ACCEPT	2
	__u8				in;
	__u8				fwd;
	__u8				out;
};

#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
6f52b16c	1	/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
1da177e4 LT	2	#ifndef _LINUX_XFRM_H
	3	#define _LINUX_XFRM_H
	4
15e318bd	5	#include <linux/in6.h>
1da177e4 LT	6	#include <linux/types.h>
	7
	8	/* All of the structures in this file may not change size as they are
	9	* passed into the kernel from userspace via netlink sockets.
	10	*/
	11
	12	/* Structure to encapsulate addresses. I do not want to use
	13	* "standard" structure. My apologies.
	14	*/
d94d9fee	15	typedef union {
737b5761 AV	16	__be32 a4;
737b5761 AV	17	__be32 a6[4];
15e318bd	18	struct in6_addr in6;
1da177e4 LT	19	} xfrm_address_t;
	20
	21	/* Ident of a specific xfrm_state. It is used on input to lookup
	22	* the state by (spi,daddr,ah/esp) or to store information about
	23	* spi, protocol and tunnel address on output.
	24	*/
d94d9fee	25	struct xfrm_id {
1da177e4	26	xfrm_address_t daddr;
e037c39b	27	__be32 spi;
1da177e4 LT	28	__u8 proto;
	29	};
	30
df71837d TJ	31	struct xfrm_sec_ctx {
	32	__u8 ctx_doi;
	33	__u8 ctx_alg;
	34	__u16 ctx_len;
	35	__u32 ctx_sid;
94dfc73e	36	char ctx_str[];
df71837d TJ	37	};
	38
	39	/* Security Context Domains of Interpretation */
	40	#define XFRM_SC_DOI_RESERVED 0
	41	#define XFRM_SC_DOI_LSM 1
	42
	43	/* Security Context Algorithms */
	44	#define XFRM_SC_ALG_RESERVED 0
	45	#define XFRM_SC_ALG_SELINUX 1
	46
1da177e4 LT	47	/* Selector, used as selector both on policy rules (SPD) and SAs. */
1da177e4 LT	48
d94d9fee	49	struct xfrm_selector {
1da177e4 LT	50	xfrm_address_t daddr;
1da177e4 LT	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;
85efde6f	61	__kernel_uid32_t user;
1da177e4 LT	62	};
	63
	64	#define XFRM_INF (~(__u64)0)
	65
d94d9fee	66	struct xfrm_lifetime_cfg {
1da177e4 LT	67	__u64 soft_byte_limit;
	68	__u64 hard_byte_limit;
	69	__u64 soft_packet_limit;
	70	__u64 hard_packet_limit;
	71	__u64 soft_add_expires_seconds;
	72	__u64 hard_add_expires_seconds;
	73	__u64 soft_use_expires_seconds;
	74	__u64 hard_use_expires_seconds;
	75	};
	76
d94d9fee	77	struct xfrm_lifetime_cur {
1da177e4 LT	78	__u64 bytes;
	79	__u64 packets;
	80	__u64 add_time;
	81	__u64 use_time;
	82	};
	83
d94d9fee	84	struct xfrm_replay_state {
1da177e4 LT	85	__u32 oseq;
	86	__u32 seq;
	87	__u32 bitmap;
	88	};
	89
ecd79187 MK	90	#define XFRMA_REPLAY_ESN_MAX 4096
ecd79187 MK	91
9736acf3 SK	92	struct xfrm_replay_state_esn {
	93	unsigned int bmp_len;
	94	__u32 oseq;
	95	__u32 seq;
	96	__u32 oseq_hi;
	97	__u32 seq_hi;
	98	__u32 replay_window;
94dfc73e	99	__u32 bmp[];
9736acf3 SK	100	};
9736acf3 SK	101
1da177e4	102	struct xfrm_algo {
3f4afb64	103	char alg_name[64];
ba749ae9	104	unsigned int alg_key_len; /* in bits */
94dfc73e	105	char alg_key[];
1da177e4 LT	106	};
1da177e4 LT	107
4e242d16 MW	108	struct xfrm_algo_auth {
	109	char alg_name[64];
	110	unsigned int alg_key_len; /* in bits */
	111	unsigned int alg_trunc_len; /* in bits */
94dfc73e	112	char alg_key[];
4e242d16 MW	113	};
4e242d16 MW	114
1a6509d9	115	struct xfrm_algo_aead {
461e6c85 ED	116	char alg_name[64];
	117	unsigned int alg_key_len; /* in bits */
	118	unsigned int alg_icv_len; /* in bits */
94dfc73e	119	char alg_key[];
1a6509d9 HX	120	};
1a6509d9 HX	121
1da177e4 LT	122	struct xfrm_stats {
	123	__u32 replay_window;
	124	__u32 replay;
	125	__u32 integrity_failed;
	126	};
	127
d94d9fee	128	enum {
4e81bb83 MN	129	XFRM_POLICY_TYPE_MAIN = 0,
4e81bb83 MN	130	XFRM_POLICY_TYPE_SUB = 1,
4c563f76 TT	131	XFRM_POLICY_TYPE_MAX = 2,
4c563f76 TT	132	XFRM_POLICY_TYPE_ANY = 255
4e81bb83 MN	133	};
4e81bb83 MN	134
d94d9fee	135	enum {
1da177e4 LT	136	XFRM_POLICY_IN = 0,
	137	XFRM_POLICY_OUT = 1,
	138	XFRM_POLICY_FWD = 2,
d5422efe	139	XFRM_POLICY_MASK = 3,
1da177e4 LT	140	XFRM_POLICY_MAX = 3
	141	};
	142
d94d9fee	143	enum {
1da177e4 LT	144	XFRM_SHARE_ANY, /* No limitations */
	145	XFRM_SHARE_SESSION, /* For this session only */
	146	XFRM_SHARE_USER, /* For this user only */
	147	XFRM_SHARE_UNIQUE /* Use once */
	148	};
	149
b59f45d0 HX	150	#define XFRM_MODE_TRANSPORT 0
b59f45d0 HX	151	#define XFRM_MODE_TUNNEL 1
7e49e6de MN	152	#define XFRM_MODE_ROUTEOPTIMIZATION 2
7e49e6de MN	153	#define XFRM_MODE_IN_TRIGGER 3
0a69452c DB	154	#define XFRM_MODE_BEET 4
0a69452c DB	155	#define XFRM_MODE_MAX 5
b59f45d0	156
1da177e4 LT	157	/* Netlink configuration messages. */
	158	enum {
	159	XFRM_MSG_BASE = 0x10,
	160
	161	XFRM_MSG_NEWSA = 0x10,
	162	#define XFRM_MSG_NEWSA XFRM_MSG_NEWSA
	163	XFRM_MSG_DELSA,
	164	#define XFRM_MSG_DELSA XFRM_MSG_DELSA
	165	XFRM_MSG_GETSA,
	166	#define XFRM_MSG_GETSA XFRM_MSG_GETSA
	167
	168	XFRM_MSG_NEWPOLICY,
	169	#define XFRM_MSG_NEWPOLICY XFRM_MSG_NEWPOLICY
	170	XFRM_MSG_DELPOLICY,
	171	#define XFRM_MSG_DELPOLICY XFRM_MSG_DELPOLICY
	172	XFRM_MSG_GETPOLICY,
	173	#define XFRM_MSG_GETPOLICY XFRM_MSG_GETPOLICY
	174
	175	XFRM_MSG_ALLOCSPI,
	176	#define XFRM_MSG_ALLOCSPI XFRM_MSG_ALLOCSPI
	177	XFRM_MSG_ACQUIRE,
	178	#define XFRM_MSG_ACQUIRE XFRM_MSG_ACQUIRE
	179	XFRM_MSG_EXPIRE,
	180	#define XFRM_MSG_EXPIRE XFRM_MSG_EXPIRE
	181
	182	XFRM_MSG_UPDPOLICY,
	183	#define XFRM_MSG_UPDPOLICY XFRM_MSG_UPDPOLICY
	184	XFRM_MSG_UPDSA,
	185	#define XFRM_MSG_UPDSA XFRM_MSG_UPDSA
	186
	187	XFRM_MSG_POLEXPIRE,
	188	#define XFRM_MSG_POLEXPIRE XFRM_MSG_POLEXPIRE
	189
	190	XFRM_MSG_FLUSHSA,
	191	#define XFRM_MSG_FLUSHSA XFRM_MSG_FLUSHSA
	192	XFRM_MSG_FLUSHPOLICY,
	193	#define XFRM_MSG_FLUSHPOLICY XFRM_MSG_FLUSHPOLICY
	194
f8cd5488 JHS	195	XFRM_MSG_NEWAE,
	196	#define XFRM_MSG_NEWAE XFRM_MSG_NEWAE
	197	XFRM_MSG_GETAE,
	198	#define XFRM_MSG_GETAE XFRM_MSG_GETAE
97a64b45 MN	199
	200	XFRM_MSG_REPORT,
	201	#define XFRM_MSG_REPORT XFRM_MSG_REPORT
	202
80c9abaa SS	203	XFRM_MSG_MIGRATE,
	204	#define XFRM_MSG_MIGRATE XFRM_MSG_MIGRATE
	205
28d8909b JHS	206	XFRM_MSG_NEWSADINFO,
	207	#define XFRM_MSG_NEWSADINFO XFRM_MSG_NEWSADINFO
	208	XFRM_MSG_GETSADINFO,
	209	#define XFRM_MSG_GETSADINFO XFRM_MSG_GETSADINFO
ecfd6b18 JHS	210
	211	XFRM_MSG_NEWSPDINFO,
	212	#define XFRM_MSG_NEWSPDINFO XFRM_MSG_NEWSPDINFO
	213	XFRM_MSG_GETSPDINFO,
	214	#define XFRM_MSG_GETSPDINFO XFRM_MSG_GETSPDINFO
3a2dfbe8	215
844f7eaa ES	216	XFRM_MSG_MAPPING,
	217	#define XFRM_MSG_MAPPING XFRM_MSG_MAPPING
	218
2d151d39 SK	219	XFRM_MSG_SETDEFAULT,
	220	#define XFRM_MSG_SETDEFAULT XFRM_MSG_SETDEFAULT
	221	XFRM_MSG_GETDEFAULT,
	222	#define XFRM_MSG_GETDEFAULT XFRM_MSG_GETDEFAULT
526bdb80	223	__XFRM_MSG_MAX
1da177e4	224	};
526bdb80	225	#define XFRM_MSG_MAX (__XFRM_MSG_MAX - 1)
1da177e4	226
492b558b TG	227	#define XFRM_NR_MSGTYPES (XFRM_MSG_MAX + 1 - XFRM_MSG_BASE)
492b558b TG	228
df71837d TJ	229	/*
	230	* Generic LSM security context for comunicating to user space
	231	* NOTE: Same format as sadb_x_sec_ctx
	232	*/
	233	struct xfrm_user_sec_ctx {
	234	__u16 len;
	235	__u16 exttype;
	236	__u8 ctx_alg; /* LSMs: e.g., selinux == 1 */
	237	__u8 ctx_doi;
	238	__u16 ctx_len;
	239	};
	240
1da177e4 LT	241	struct xfrm_user_tmpl {
	242	struct xfrm_id id;
	243	__u16 family;
	244	xfrm_address_t saddr;
	245	__u32 reqid;
	246	__u8 mode;
	247	__u8 share;
	248	__u8 optional;
	249	__u32 aalgos;
	250	__u32 ealgos;
	251	__u32 calgos;
	252	};
	253
	254	struct xfrm_encap_tmpl {
	255	__u16 encap_type;
d5a0a1e3 AV	256	__be16 encap_sport;
d5a0a1e3 AV	257	__be16 encap_dport;
1da177e4 LT	258	xfrm_address_t encap_oa;
	259	};
	260
f8cd5488 JHS	261	/* AEVENT flags */
	262	enum xfrm_ae_ftype_t {
	263	XFRM_AE_UNSPEC,
	264	XFRM_AE_RTHR=1, /* replay threshold*/
	265	XFRM_AE_RVAL=2, /* replay value */
	266	XFRM_AE_LVAL=4, /* lifetime value */
	267	XFRM_AE_ETHR=8, /* expiry timer threshold */
	268	XFRM_AE_CR=16, /* Event cause is replay update */
	269	XFRM_AE_CE=32, /* Event cause is timer expiry */
	270	XFRM_AE_CU=64, /* Event cause is policy update */
	271	__XFRM_AE_MAX
	272
	273	#define XFRM_AE_MAX (__XFRM_AE_MAX - 1)
	274	};
	275
f7b6983f MN	276	struct xfrm_userpolicy_type {
	277	__u8 type;
	278	__u16 reserved1;
	279	__u8 reserved2;
	280	};
	281
1da177e4 LT	282	/* Netlink message attributes. */
	283	enum xfrm_attr_type_t {
	284	XFRMA_UNSPEC,
	285	XFRMA_ALG_AUTH, /* struct xfrm_algo */
	286	XFRMA_ALG_CRYPT, /* struct xfrm_algo */
	287	XFRMA_ALG_COMP, /* struct xfrm_algo */
	288	XFRMA_ENCAP, /* struct xfrm_algo + struct xfrm_encap_tmpl */
	289	XFRMA_TMPL, /* 1 or more struct xfrm_user_tmpl */
bf825f81 JHS	290	XFRMA_SA, /* struct xfrm_usersa_info */
bf825f81 JHS	291	XFRMA_POLICY, /struct xfrm_userpolicy_info /
df71837d	292	XFRMA_SEC_CTX, /* struct xfrm_sec_ctx */
f8cd5488 JHS	293	XFRMA_LTIME_VAL,
	294	XFRMA_REPLAY_VAL,
	295	XFRMA_REPLAY_THRESH,
	296	XFRMA_ETIMER_THRESH,
eb2971b6	297	XFRMA_SRCADDR, /* xfrm_address_t */
060f02a3	298	XFRMA_COADDR, /* xfrm_address_t */
bf825f81	299	XFRMA_LASTUSED, /* unsigned long */
f7b6983f	300	XFRMA_POLICY_TYPE, /* struct xfrm_userpolicy_type */
80c9abaa	301	XFRMA_MIGRATE,
1a6509d9	302	XFRMA_ALG_AEAD, /* struct xfrm_algo_aead */
13c1d189	303	XFRMA_KMADDRESS, /* struct xfrm_user_kmaddress */
4e242d16	304	XFRMA_ALG_AUTH_TRUNC, /* struct xfrm_algo_auth */
bf825f81	305	XFRMA_MARK, /* struct xfrm_mark */
35d2856b	306	XFRMA_TFCPAD, /* __u32 */
34a3d4b2	307	XFRMA_REPLAY_ESN_VAL, /* struct xfrm_replay_state_esn */
a947b0a9	308	XFRMA_SA_EXTRA_FLAGS, /* __u32 */
d3623099	309	XFRMA_PROTO, /* __u8 */
870a2df4	310	XFRMA_ADDRESS_FILTER, /* struct xfrm_address_filter */
de95c4a4	311	XFRMA_PAD,
29e42766	312	XFRMA_OFFLOAD_DEV, /* struct xfrm_user_offload */
9b42c1f1 SK	313	XFRMA_SET_MARK, /* __u32 */
9b42c1f1 SK	314	XFRMA_SET_MARK_MASK, /* __u32 */
7e652640	315	XFRMA_IF_ID, /* __u32 */
4e484b3e	316	XFRMA_MTIMER_THRESH, /* __u32 in seconds for input SA */
1da177e4 LT	317	__XFRMA_MAX
1da177e4 LT	318
9b42c1f1	319	#define XFRMA_OUTPUT_MARK XFRMA_SET_MARK /* Compatibility */
1da177e4 LT	320	#define XFRMA_MAX (__XFRMA_MAX - 1)
	321	};
	322
bf825f81 JHS	323	struct xfrm_mark {
	324	__u32 v; /* value */
	325	__u32 m; /* mask */
	326	};
	327
28d8909b JHS	328	enum xfrm_sadattr_type_t {
28d8909b JHS	329	XFRMA_SAD_UNSPEC,
af11e316 JHS	330	XFRMA_SAD_CNT,
af11e316 JHS	331	XFRMA_SAD_HINFO,
28d8909b JHS	332	__XFRMA_SAD_MAX
	333
	334	#define XFRMA_SAD_MAX (__XFRMA_SAD_MAX - 1)
	335	};
	336
af11e316 JHS	337	struct xfrmu_sadhinfo {
	338	__u32 sadhcnt; /* current hash bkts */
	339	__u32 sadhmcnt; /* max allowed hash bkts */
	340	};
	341
ecfd6b18 JHS	342	enum xfrm_spdattr_type_t {
ecfd6b18 JHS	343	XFRMA_SPD_UNSPEC,
5a6d3416 JHS	344	XFRMA_SPD_INFO,
5a6d3416 JHS	345	XFRMA_SPD_HINFO,
880a6fab CG	346	XFRMA_SPD_IPV4_HTHRESH,
880a6fab CG	347	XFRMA_SPD_IPV6_HTHRESH,
ecfd6b18 JHS	348	__XFRMA_SPD_MAX
	349
	350	#define XFRMA_SPD_MAX (__XFRMA_SPD_MAX - 1)
	351	};
	352
5a6d3416 JHS	353	struct xfrmu_spdinfo {
	354	__u32 incnt;
	355	__u32 outcnt;
	356	__u32 fwdcnt;
	357	__u32 inscnt;
	358	__u32 outscnt;
	359	__u32 fwdscnt;
	360	};
	361
	362	struct xfrmu_spdhinfo {
	363	__u32 spdhcnt;
	364	__u32 spdhmcnt;
	365	};
	366
880a6fab CG	367	struct xfrmu_spdhthresh {
	368	__u8 lbits;
	369	__u8 rbits;
	370	};
	371
1da177e4 LT	372	struct xfrm_usersa_info {
	373	struct xfrm_selector sel;
	374	struct xfrm_id id;
	375	xfrm_address_t saddr;
	376	struct xfrm_lifetime_cfg lft;
	377	struct xfrm_lifetime_cur curlft;
	378	struct xfrm_stats stats;
	379	__u32 seq;
	380	__u32 reqid;
	381	__u16 family;
7e49e6de	382	__u8 mode; /* XFRM_MODE_xxx */
1da177e4 LT	383	__u8 replay_window;
	384	__u8 flags;
	385	#define XFRM_STATE_NOECN 1
	386	#define XFRM_STATE_DECAP_DSCP 2
dd87147e	387	#define XFRM_STATE_NOPMTUDISC 4
fbd9a5b4	388	#define XFRM_STATE_WILDRECV 8
8b7817f3	389	#define XFRM_STATE_ICMP 16
ccf9b3b8	390	#define XFRM_STATE_AF_UNSPEC 32
fa9921e4	391	#define XFRM_STATE_ALIGN4 64
9736acf3	392	#define XFRM_STATE_ESN 128
1da177e4 LT	393	};
1da177e4 LT	394
a947b0a9	395	#define XFRM_SA_XFLAG_DONT_ENCAP_DSCP 1
428d2459	396	#define XFRM_SA_XFLAG_OSEQ_MAY_WRAP 2
a947b0a9	397
1da177e4 LT	398	struct xfrm_usersa_id {
1da177e4 LT	399	xfrm_address_t daddr;
9916ecb0	400	__be32 spi;
1da177e4 LT	401	__u16 family;
	402	__u8 proto;
	403	};
	404
f8cd5488	405	struct xfrm_aevent_id {
f8cd5488	406	struct xfrm_usersa_id sa_id;
2b5f6dcc	407	xfrm_address_t saddr;
4bf07ef3	408	__u32 flags;
2b5f6dcc	409	__u32 reqid;
f8cd5488 JHS	410	};
f8cd5488 JHS	411
1da177e4 LT	412	struct xfrm_userspi_info {
	413	struct xfrm_usersa_info info;
	414	__u32 min;
	415	__u32 max;
	416	};
	417
	418	struct xfrm_userpolicy_info {
	419	struct xfrm_selector sel;
	420	struct xfrm_lifetime_cfg lft;
	421	struct xfrm_lifetime_cur curlft;
	422	__u32 priority;
	423	__u32 index;
	424	__u8 dir;
	425	__u8 action;
	426	#define XFRM_POLICY_ALLOW 0
	427	#define XFRM_POLICY_BLOCK 1
	428	__u8 flags;
	429	#define XFRM_POLICY_LOCALOK 1 /* Allow user to override global policy */
8b7817f3 HX	430	/* Automatically expand selector to include matching ICMP payloads. */
8b7817f3 HX	431	#define XFRM_POLICY_ICMP 2
1da177e4 LT	432	__u8 share;
	433	};
	434
	435	struct xfrm_userpolicy_id {
	436	struct xfrm_selector sel;
	437	__u32 index;
	438	__u8 dir;
	439	};
	440
	441	struct xfrm_user_acquire {
	442	struct xfrm_id id;
	443	xfrm_address_t saddr;
	444	struct xfrm_selector sel;
	445	struct xfrm_userpolicy_info policy;
	446	__u32 aalgos;
	447	__u32 ealgos;
	448	__u32 calgos;
	449	__u32 seq;
	450	};
	451
	452	struct xfrm_user_expire {
	453	struct xfrm_usersa_info state;
	454	__u8 hard;
	455	};
	456
	457	struct xfrm_user_polexpire {
	458	struct xfrm_userpolicy_info pol;
	459	__u8 hard;
	460	};
	461
	462	struct xfrm_usersa_flush {
	463	__u8 proto;
	464	};
	465
97a64b45 MN	466	struct xfrm_user_report {
	467	__u8 proto;
	468	struct xfrm_selector sel;
	469	};
	470
13c1d189 AE	471	/* Used by MIGRATE to pass addresses IKE should use to perform
	472	* SA negotiation with the peer */
	473	struct xfrm_user_kmaddress {
	474	xfrm_address_t local;
	475	xfrm_address_t remote;
	476	__u32 reserved;
	477	__u16 family;
	478	};
	479
80c9abaa SS	480	struct xfrm_user_migrate {
	481	xfrm_address_t old_daddr;
	482	xfrm_address_t old_saddr;
	483	xfrm_address_t new_daddr;
	484	xfrm_address_t new_saddr;
	485	__u8 proto;
	486	__u8 mode;
	487	__u16 reserved;
	488	__u32 reqid;
	489	__u16 old_family;
	490	__u16 new_family;
	491	};
	492
3a2dfbe8 MW	493	struct xfrm_user_mapping {
	494	struct xfrm_usersa_id id;
	495	__u32 reqid;
	496	xfrm_address_t old_saddr;
	497	xfrm_address_t new_saddr;
	498	__be16 old_sport;
	499	__be16 new_sport;
	500	};
	501
870a2df4	502	struct xfrm_address_filter {
d3623099 ND	503	xfrm_address_t saddr;
	504	xfrm_address_t daddr;
	505	__u16 family;
	506	__u8 splen;
	507	__u8 dplen;
	508	};
	509
d77e38e6 SK	510	struct xfrm_user_offload {
	511	int ifindex;
	512	__u8 flags;
	513	};
5e25c25a PV	514	/* This flag was exposed without any kernel code that supports it.
	515	* Unfortunately, strongswan has the code that sets this flag,
	516	* which makes it impossible to reuse this bit.
7c76ecd9 LR	517	*
	518	* So leave it here to make sure that it won't be reused by mistake.
	519	*/
d77e38e6 SK	520	#define XFRM_OFFLOAD_IPV6 1
	521	#define XFRM_OFFLOAD_INBOUND 2
	522
2d151d39	523	struct xfrm_userpolicy_default {
f8d858e6 ND	524	#define XFRM_USERPOLICY_UNSPEC 0
	525	#define XFRM_USERPOLICY_BLOCK 1
	526	#define XFRM_USERPOLICY_ACCEPT 2
	527	__u8 in;
	528	__u8 fwd;
	529	__u8 out;
2d151d39 SK	530	};
2d151d39 SK	531
ac6d439d PM	532	#ifndef __KERNEL__
ac6d439d PM	533	/* backwards compatibility for userspace */
1da177e4 LT	534	#define XFRMGRP_ACQUIRE 1
1da177e4 LT	535	#define XFRMGRP_EXPIRE 2
26b15dad JHS	536	#define XFRMGRP_SA 4
26b15dad JHS	537	#define XFRMGRP_POLICY 8
93366c53	538	#define XFRMGRP_REPORT 0x20
ac6d439d PM	539	#endif
	540
	541	enum xfrm_nlgroups {
	542	XFRMNLGRP_NONE,
	543	#define XFRMNLGRP_NONE XFRMNLGRP_NONE
	544	XFRMNLGRP_ACQUIRE,
	545	#define XFRMNLGRP_ACQUIRE XFRMNLGRP_ACQUIRE
	546	XFRMNLGRP_EXPIRE,
	547	#define XFRMNLGRP_EXPIRE XFRMNLGRP_EXPIRE
	548	XFRMNLGRP_SA,
	549	#define XFRMNLGRP_SA XFRMNLGRP_SA
	550	XFRMNLGRP_POLICY,
	551	#define XFRMNLGRP_POLICY XFRMNLGRP_POLICY
f8cd5488 JHS	552	XFRMNLGRP_AEVENTS,
f8cd5488 JHS	553	#define XFRMNLGRP_AEVENTS XFRMNLGRP_AEVENTS
97a64b45 MN	554	XFRMNLGRP_REPORT,
97a64b45 MN	555	#define XFRMNLGRP_REPORT XFRMNLGRP_REPORT
80c9abaa SS	556	XFRMNLGRP_MIGRATE,
80c9abaa SS	557	#define XFRMNLGRP_MIGRATE XFRMNLGRP_MIGRATE
3a2dfbe8 MW	558	XFRMNLGRP_MAPPING,
3a2dfbe8 MW	559	#define XFRMNLGRP_MAPPING XFRMNLGRP_MAPPING
ac6d439d PM	560	__XFRMNLGRP_MAX
	561	};
	562	#define XFRMNLGRP_MAX (__XFRMNLGRP_MAX - 1)
1da177e4 LT	563
1da177e4 LT	564	#endif /* _LINUX_XFRM_H */