452 lines
9.1 KiB
C
452 lines
9.1 KiB
C
#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_stats {
|
|
__u32 replay_window;
|
|
__u32 replay;
|
|
__u32 integrity_failed;
|
|
};
|
|
|
|
enum
|
|
{
|
|
XFRM_POLICY_TYPE_MAIN = 0,
|
|
XFRM_POLICY_TYPE_SUB = 1,
|
|
XFRM_POLICY_TYPE_MAX = 2
|
|
};
|
|
|
|
enum
|
|
{
|
|
XFRM_POLICY_IN = 0,
|
|
XFRM_POLICY_OUT = 1,
|
|
XFRM_POLICY_FWD = 2,
|
|
XFRM_POLICY_MASK = 3,
|
|
XFRM_POLICY_MAX = 3
|
|
};
|
|
|
|
enum
|
|
{
|
|
XFRM_SHARE_ANY, /* No limitations */
|
|
XFRM_SHARE_SESSION, /* For this session only */
|
|
XFRM_SHARE_USER, /* For this user only */
|
|
XFRM_SHARE_UNIQUE /* Use once */
|
|
};
|
|
|
|
#define XFRM_MODE_TRANSPORT 0
|
|
#define XFRM_MODE_TUNNEL 1
|
|
#define XFRM_MODE_ROUTEOPTIMIZATION 2
|
|
#define XFRM_MODE_IN_TRIGGER 3
|
|
#define XFRM_MODE_BEET 4
|
|
#define XFRM_MODE_MAX 5
|
|
|
|
/* Netlink configuration messages. */
|
|
enum {
|
|
XFRM_MSG_BASE = 0x10,
|
|
|
|
XFRM_MSG_NEWSA = 0x10,
|
|
#define XFRM_MSG_NEWSA XFRM_MSG_NEWSA
|
|
XFRM_MSG_DELSA,
|
|
#define XFRM_MSG_DELSA XFRM_MSG_DELSA
|
|
XFRM_MSG_GETSA,
|
|
#define XFRM_MSG_GETSA XFRM_MSG_GETSA
|
|
|
|
XFRM_MSG_NEWPOLICY,
|
|
#define XFRM_MSG_NEWPOLICY XFRM_MSG_NEWPOLICY
|
|
XFRM_MSG_DELPOLICY,
|
|
#define XFRM_MSG_DELPOLICY XFRM_MSG_DELPOLICY
|
|
XFRM_MSG_GETPOLICY,
|
|
#define XFRM_MSG_GETPOLICY XFRM_MSG_GETPOLICY
|
|
|
|
XFRM_MSG_ALLOCSPI,
|
|
#define XFRM_MSG_ALLOCSPI XFRM_MSG_ALLOCSPI
|
|
XFRM_MSG_ACQUIRE,
|
|
#define XFRM_MSG_ACQUIRE XFRM_MSG_ACQUIRE
|
|
XFRM_MSG_EXPIRE,
|
|
#define XFRM_MSG_EXPIRE XFRM_MSG_EXPIRE
|
|
|
|
XFRM_MSG_UPDPOLICY,
|
|
#define XFRM_MSG_UPDPOLICY XFRM_MSG_UPDPOLICY
|
|
XFRM_MSG_UPDSA,
|
|
#define XFRM_MSG_UPDSA XFRM_MSG_UPDSA
|
|
|
|
XFRM_MSG_POLEXPIRE,
|
|
#define XFRM_MSG_POLEXPIRE XFRM_MSG_POLEXPIRE
|
|
|
|
XFRM_MSG_FLUSHSA,
|
|
#define XFRM_MSG_FLUSHSA XFRM_MSG_FLUSHSA
|
|
XFRM_MSG_FLUSHPOLICY,
|
|
#define XFRM_MSG_FLUSHPOLICY XFRM_MSG_FLUSHPOLICY
|
|
|
|
XFRM_MSG_NEWAE,
|
|
#define XFRM_MSG_NEWAE XFRM_MSG_NEWAE
|
|
XFRM_MSG_GETAE,
|
|
#define XFRM_MSG_GETAE XFRM_MSG_GETAE
|
|
|
|
XFRM_MSG_REPORT,
|
|
#define XFRM_MSG_REPORT XFRM_MSG_REPORT
|
|
|
|
XFRM_MSG_MIGRATE,
|
|
#define XFRM_MSG_MIGRATE XFRM_MSG_MIGRATE
|
|
|
|
XFRM_MSG_NEWSADINFO,
|
|
#define XFRM_MSG_NEWSADINFO XFRM_MSG_NEWSADINFO
|
|
XFRM_MSG_GETSADINFO,
|
|
#define XFRM_MSG_GETSADINFO XFRM_MSG_GETSADINFO
|
|
|
|
XFRM_MSG_NEWSPDINFO,
|
|
#define XFRM_MSG_NEWSPDINFO XFRM_MSG_NEWSPDINFO
|
|
XFRM_MSG_GETSPDINFO,
|
|
#define XFRM_MSG_GETSPDINFO XFRM_MSG_GETSPDINFO
|
|
__XFRM_MSG_MAX
|
|
};
|
|
#define XFRM_MSG_MAX (__XFRM_MSG_MAX - 1)
|
|
|
|
#define XFRM_NR_MSGTYPES (XFRM_MSG_MAX + 1 - XFRM_MSG_BASE)
|
|
|
|
/*
|
|
* Generic LSM security context for comunicating to user space
|
|
* NOTE: Same format as sadb_x_sec_ctx
|
|
*/
|
|
struct xfrm_user_sec_ctx {
|
|
__u16 len;
|
|
__u16 exttype;
|
|
__u8 ctx_alg; /* LSMs: e.g., selinux == 1 */
|
|
__u8 ctx_doi;
|
|
__u16 ctx_len;
|
|
};
|
|
|
|
struct xfrm_user_tmpl {
|
|
struct xfrm_id id;
|
|
__u16 family;
|
|
xfrm_address_t saddr;
|
|
__u32 reqid;
|
|
__u8 mode;
|
|
__u8 share;
|
|
__u8 optional;
|
|
__u32 aalgos;
|
|
__u32 ealgos;
|
|
__u32 calgos;
|
|
};
|
|
|
|
struct xfrm_encap_tmpl {
|
|
__u16 encap_type;
|
|
__be16 encap_sport;
|
|
__be16 encap_dport;
|
|
xfrm_address_t encap_oa;
|
|
};
|
|
|
|
/* AEVENT flags */
|
|
enum xfrm_ae_ftype_t {
|
|
XFRM_AE_UNSPEC,
|
|
XFRM_AE_RTHR=1, /* replay threshold*/
|
|
XFRM_AE_RVAL=2, /* replay value */
|
|
XFRM_AE_LVAL=4, /* lifetime value */
|
|
XFRM_AE_ETHR=8, /* expiry timer threshold */
|
|
XFRM_AE_CR=16, /* Event cause is replay update */
|
|
XFRM_AE_CE=32, /* Event cause is timer expiry */
|
|
XFRM_AE_CU=64, /* Event cause is policy update */
|
|
__XFRM_AE_MAX
|
|
|
|
#define XFRM_AE_MAX (__XFRM_AE_MAX - 1)
|
|
};
|
|
|
|
struct xfrm_userpolicy_type {
|
|
__u8 type;
|
|
__u16 reserved1;
|
|
__u8 reserved2;
|
|
};
|
|
|
|
/* Netlink message attributes. */
|
|
enum xfrm_attr_type_t {
|
|
XFRMA_UNSPEC,
|
|
XFRMA_ALG_AUTH, /* struct xfrm_algo */
|
|
XFRMA_ALG_CRYPT, /* struct xfrm_algo */
|
|
XFRMA_ALG_COMP, /* struct xfrm_algo */
|
|
XFRMA_ENCAP, /* struct xfrm_algo + struct xfrm_encap_tmpl */
|
|
XFRMA_TMPL, /* 1 or more struct xfrm_user_tmpl */
|
|
XFRMA_SA,
|
|
XFRMA_POLICY,
|
|
XFRMA_SEC_CTX, /* struct xfrm_sec_ctx */
|
|
XFRMA_LTIME_VAL,
|
|
XFRMA_REPLAY_VAL,
|
|
XFRMA_REPLAY_THRESH,
|
|
XFRMA_ETIMER_THRESH,
|
|
XFRMA_SRCADDR, /* xfrm_address_t */
|
|
XFRMA_COADDR, /* xfrm_address_t */
|
|
XFRMA_LASTUSED,
|
|
XFRMA_POLICY_TYPE, /* struct xfrm_userpolicy_type */
|
|
XFRMA_MIGRATE,
|
|
__XFRMA_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 */
|