4 #include <linux/types.h>
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.
10 /* Structure to encapsulate addresses. I do not want to use
11 * "standard" structure. My apologies.
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.
38 /* Security Context Domains of Interpretation */
39 #define XFRM_SC_DOI_RESERVED 0
40 #define XFRM_SC_DOI_LSM 1
42 /* Security Context Algorithms */
43 #define XFRM_SC_ALG_RESERVED 0
44 #define XFRM_SC_ALG_SELINUX 1
46 /* Selector, used as selector both on policy rules (SPD) and SAs. */
64 #define XFRM_INF (~(__u64)0)
66 struct xfrm_lifetime_cfg
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
;
78 struct xfrm_lifetime_cur
86 struct xfrm_replay_state
95 unsigned int alg_key_len
; /* in bits */
99 struct xfrm_algo_aead
{
101 unsigned int alg_key_len
; /* in bits */
102 unsigned int alg_icv_len
; /* in bits */
109 __u32 integrity_failed
;
114 XFRM_POLICY_TYPE_MAIN
= 0,
115 XFRM_POLICY_TYPE_SUB
= 1,
116 XFRM_POLICY_TYPE_MAX
= 2,
117 XFRM_POLICY_TYPE_ANY
= 255
125 XFRM_POLICY_MASK
= 3,
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 */
137 #define XFRM_MODE_TRANSPORT 0
138 #define XFRM_MODE_TUNNEL 1
139 #define XFRM_MODE_ROUTEOPTIMIZATION 2
140 #define XFRM_MODE_IN_TRIGGER 3
141 #define XFRM_MODE_BEET 4
142 #define XFRM_MODE_MAX 5
144 /* Netlink configuration messages. */
146 XFRM_MSG_BASE
= 0x10,
148 XFRM_MSG_NEWSA
= 0x10,
149 #define XFRM_MSG_NEWSA XFRM_MSG_NEWSA
151 #define XFRM_MSG_DELSA XFRM_MSG_DELSA
153 #define XFRM_MSG_GETSA XFRM_MSG_GETSA
156 #define XFRM_MSG_NEWPOLICY XFRM_MSG_NEWPOLICY
158 #define XFRM_MSG_DELPOLICY XFRM_MSG_DELPOLICY
160 #define XFRM_MSG_GETPOLICY XFRM_MSG_GETPOLICY
163 #define XFRM_MSG_ALLOCSPI XFRM_MSG_ALLOCSPI
165 #define XFRM_MSG_ACQUIRE XFRM_MSG_ACQUIRE
167 #define XFRM_MSG_EXPIRE XFRM_MSG_EXPIRE
170 #define XFRM_MSG_UPDPOLICY XFRM_MSG_UPDPOLICY
172 #define XFRM_MSG_UPDSA XFRM_MSG_UPDSA
175 #define XFRM_MSG_POLEXPIRE XFRM_MSG_POLEXPIRE
178 #define XFRM_MSG_FLUSHSA XFRM_MSG_FLUSHSA
179 XFRM_MSG_FLUSHPOLICY
,
180 #define XFRM_MSG_FLUSHPOLICY XFRM_MSG_FLUSHPOLICY
183 #define XFRM_MSG_NEWAE XFRM_MSG_NEWAE
185 #define XFRM_MSG_GETAE XFRM_MSG_GETAE
188 #define XFRM_MSG_REPORT XFRM_MSG_REPORT
191 #define XFRM_MSG_MIGRATE XFRM_MSG_MIGRATE
194 #define XFRM_MSG_NEWSADINFO XFRM_MSG_NEWSADINFO
196 #define XFRM_MSG_GETSADINFO XFRM_MSG_GETSADINFO
199 #define XFRM_MSG_NEWSPDINFO XFRM_MSG_NEWSPDINFO
201 #define XFRM_MSG_GETSPDINFO XFRM_MSG_GETSPDINFO
204 #define XFRM_MSG_MAX (__XFRM_MSG_MAX - 1)
206 #define XFRM_NR_MSGTYPES (XFRM_MSG_MAX + 1 - XFRM_MSG_BASE)
209 * Generic LSM security context for comunicating to user space
210 * NOTE: Same format as sadb_x_sec_ctx
212 struct xfrm_user_sec_ctx
{
215 __u8 ctx_alg
; /* LSMs: e.g., selinux == 1 */
220 struct xfrm_user_tmpl
{
223 xfrm_address_t saddr
;
233 struct xfrm_encap_tmpl
{
237 xfrm_address_t encap_oa
;
241 enum xfrm_ae_ftype_t
{
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 */
252 #define XFRM_AE_MAX (__XFRM_AE_MAX - 1)
255 struct xfrm_userpolicy_type
{
261 /* Netlink message attributes. */
262 enum xfrm_attr_type_t
{
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 */
271 XFRMA_SEC_CTX
, /* struct xfrm_sec_ctx */
276 XFRMA_SRCADDR
, /* xfrm_address_t */
277 XFRMA_COADDR
, /* xfrm_address_t */
279 XFRMA_POLICY_TYPE
, /* struct xfrm_userpolicy_type */
281 XFRMA_ALG_AEAD
, /* struct xfrm_algo_aead */
284 #define XFRMA_MAX (__XFRMA_MAX - 1)
287 enum xfrm_sadattr_type_t
{
293 #define XFRMA_SAD_MAX (__XFRMA_SAD_MAX - 1)
296 struct xfrmu_sadhinfo
{
297 __u32 sadhcnt
; /* current hash bkts */
298 __u32 sadhmcnt
; /* max allowed hash bkts */
301 enum xfrm_spdattr_type_t
{
307 #define XFRMA_SPD_MAX (__XFRMA_SPD_MAX - 1)
310 struct xfrmu_spdinfo
{
319 struct xfrmu_spdhinfo
{
324 struct xfrm_usersa_info
{
325 struct xfrm_selector sel
;
327 xfrm_address_t saddr
;
328 struct xfrm_lifetime_cfg lft
;
329 struct xfrm_lifetime_cur curlft
;
330 struct xfrm_stats stats
;
334 __u8 mode
; /* XFRM_MODE_xxx */
337 #define XFRM_STATE_NOECN 1
338 #define XFRM_STATE_DECAP_DSCP 2
339 #define XFRM_STATE_NOPMTUDISC 4
340 #define XFRM_STATE_WILDRECV 8
341 #define XFRM_STATE_ICMP 16
342 #define XFRM_STATE_AF_UNSPEC 32
345 struct xfrm_usersa_id
{
346 xfrm_address_t daddr
;
352 struct xfrm_aevent_id
{
353 struct xfrm_usersa_id sa_id
;
354 xfrm_address_t saddr
;
359 struct xfrm_userspi_info
{
360 struct xfrm_usersa_info info
;
365 struct xfrm_userpolicy_info
{
366 struct xfrm_selector sel
;
367 struct xfrm_lifetime_cfg lft
;
368 struct xfrm_lifetime_cur curlft
;
373 #define XFRM_POLICY_ALLOW 0
374 #define XFRM_POLICY_BLOCK 1
376 #define XFRM_POLICY_LOCALOK 1 /* Allow user to override global policy */
377 /* Automatically expand selector to include matching ICMP payloads. */
378 #define XFRM_POLICY_ICMP 2
382 struct xfrm_userpolicy_id
{
383 struct xfrm_selector sel
;
388 struct xfrm_user_acquire
{
390 xfrm_address_t saddr
;
391 struct xfrm_selector sel
;
392 struct xfrm_userpolicy_info policy
;
399 struct xfrm_user_expire
{
400 struct xfrm_usersa_info state
;
404 struct xfrm_user_polexpire
{
405 struct xfrm_userpolicy_info pol
;
409 struct xfrm_usersa_flush
{
413 struct xfrm_user_report
{
415 struct xfrm_selector sel
;
418 struct xfrm_user_migrate
{
419 xfrm_address_t old_daddr
;
420 xfrm_address_t old_saddr
;
421 xfrm_address_t new_daddr
;
422 xfrm_address_t new_saddr
;
432 /* backwards compatibility for userspace */
433 #define XFRMGRP_ACQUIRE 1
434 #define XFRMGRP_EXPIRE 2
436 #define XFRMGRP_POLICY 8
437 #define XFRMGRP_REPORT 0x20
442 #define XFRMNLGRP_NONE XFRMNLGRP_NONE
444 #define XFRMNLGRP_ACQUIRE XFRMNLGRP_ACQUIRE
446 #define XFRMNLGRP_EXPIRE XFRMNLGRP_EXPIRE
448 #define XFRMNLGRP_SA XFRMNLGRP_SA
450 #define XFRMNLGRP_POLICY XFRMNLGRP_POLICY
452 #define XFRMNLGRP_AEVENTS XFRMNLGRP_AEVENTS
454 #define XFRMNLGRP_REPORT XFRMNLGRP_REPORT
456 #define XFRMNLGRP_MIGRATE XFRMNLGRP_MIGRATE
459 #define XFRMNLGRP_MAX (__XFRMNLGRP_MAX - 1)
461 #endif /* _LINUX_XFRM_H */