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 int alg_key_len; /* in bits */
102 __u32 integrity_failed;
107 XFRM_POLICY_TYPE_MAIN = 0,
108 XFRM_POLICY_TYPE_SUB = 1,
109 XFRM_POLICY_TYPE_MAX = 2
122 XFRM_SHARE_ANY, /* No limitations */
123 XFRM_SHARE_SESSION, /* For this session only */
124 XFRM_SHARE_USER, /* For this user only */
125 XFRM_SHARE_UNIQUE /* Use once */
128 #define XFRM_MODE_TRANSPORT 0
129 #define XFRM_MODE_TUNNEL 1
130 #define XFRM_MODE_ROUTEOPTIMIZATION 2
131 #define XFRM_MODE_IN_TRIGGER 3
132 #define XFRM_MODE_BEET 4
133 #define XFRM_MODE_MAX 5
135 /* Netlink configuration messages. */
137 XFRM_MSG_BASE = 0x10,
139 XFRM_MSG_NEWSA = 0x10,
140 #define XFRM_MSG_NEWSA XFRM_MSG_NEWSA
142 #define XFRM_MSG_DELSA XFRM_MSG_DELSA
144 #define XFRM_MSG_GETSA XFRM_MSG_GETSA
147 #define XFRM_MSG_NEWPOLICY XFRM_MSG_NEWPOLICY
149 #define XFRM_MSG_DELPOLICY XFRM_MSG_DELPOLICY
151 #define XFRM_MSG_GETPOLICY XFRM_MSG_GETPOLICY
154 #define XFRM_MSG_ALLOCSPI XFRM_MSG_ALLOCSPI
156 #define XFRM_MSG_ACQUIRE XFRM_MSG_ACQUIRE
158 #define XFRM_MSG_EXPIRE XFRM_MSG_EXPIRE
161 #define XFRM_MSG_UPDPOLICY XFRM_MSG_UPDPOLICY
163 #define XFRM_MSG_UPDSA XFRM_MSG_UPDSA
166 #define XFRM_MSG_POLEXPIRE XFRM_MSG_POLEXPIRE
169 #define XFRM_MSG_FLUSHSA XFRM_MSG_FLUSHSA
170 XFRM_MSG_FLUSHPOLICY,
171 #define XFRM_MSG_FLUSHPOLICY XFRM_MSG_FLUSHPOLICY
174 #define XFRM_MSG_NEWAE XFRM_MSG_NEWAE
176 #define XFRM_MSG_GETAE XFRM_MSG_GETAE
179 #define XFRM_MSG_REPORT XFRM_MSG_REPORT
182 #define XFRM_MSG_MIGRATE XFRM_MSG_MIGRATE
185 #define XFRM_MSG_NEWSADINFO XFRM_MSG_NEWSADINFO
187 #define XFRM_MSG_GETSADINFO XFRM_MSG_GETSADINFO
190 #define XFRM_MSG_NEWSPDINFO XFRM_MSG_NEWSPDINFO
192 #define XFRM_MSG_GETSPDINFO XFRM_MSG_GETSPDINFO
195 #define XFRM_MSG_MAX (__XFRM_MSG_MAX - 1)
197 #define XFRM_NR_MSGTYPES (XFRM_MSG_MAX + 1 - XFRM_MSG_BASE)
200 * Generic LSM security context for comunicating to user space
201 * NOTE: Same format as sadb_x_sec_ctx
203 struct xfrm_user_sec_ctx {
206 __u8 ctx_alg; /* LSMs: e.g., selinux == 1 */
211 struct xfrm_user_tmpl {
214 xfrm_address_t saddr;
224 struct xfrm_encap_tmpl {
228 xfrm_address_t encap_oa;
232 enum xfrm_ae_ftype_t {
234 XFRM_AE_RTHR=1, /* replay threshold*/
235 XFRM_AE_RVAL=2, /* replay value */
236 XFRM_AE_LVAL=4, /* lifetime value */
237 XFRM_AE_ETHR=8, /* expiry timer threshold */
238 XFRM_AE_CR=16, /* Event cause is replay update */
239 XFRM_AE_CE=32, /* Event cause is timer expiry */
240 XFRM_AE_CU=64, /* Event cause is policy update */
243 #define XFRM_AE_MAX (__XFRM_AE_MAX - 1)
246 struct xfrm_userpolicy_type {
252 /* Netlink message attributes. */
253 enum xfrm_attr_type_t {
255 XFRMA_ALG_AUTH, /* struct xfrm_algo */
256 XFRMA_ALG_CRYPT, /* struct xfrm_algo */
257 XFRMA_ALG_COMP, /* struct xfrm_algo */
258 XFRMA_ENCAP, /* struct xfrm_algo + struct xfrm_encap_tmpl */
259 XFRMA_TMPL, /* 1 or more struct xfrm_user_tmpl */
262 XFRMA_SEC_CTX, /* struct xfrm_sec_ctx */
267 XFRMA_SRCADDR, /* xfrm_address_t */
268 XFRMA_COADDR, /* xfrm_address_t */
270 XFRMA_POLICY_TYPE, /* struct xfrm_userpolicy_type */
274 #define XFRMA_MAX (__XFRMA_MAX - 1)
277 enum xfrm_sadattr_type_t {
283 #define XFRMA_SAD_MAX (__XFRMA_SAD_MAX - 1)
286 struct xfrmu_sadhinfo {
287 __u32 sadhcnt; /* current hash bkts */
288 __u32 sadhmcnt; /* max allowed hash bkts */
291 enum xfrm_spdattr_type_t {
297 #define XFRMA_SPD_MAX (__XFRMA_SPD_MAX - 1)
300 struct xfrmu_spdinfo {
309 struct xfrmu_spdhinfo {
314 struct xfrm_usersa_info {
315 struct xfrm_selector sel;
317 xfrm_address_t saddr;
318 struct xfrm_lifetime_cfg lft;
319 struct xfrm_lifetime_cur curlft;
320 struct xfrm_stats stats;
324 __u8 mode; /* XFRM_MODE_xxx */
327 #define XFRM_STATE_NOECN 1
328 #define XFRM_STATE_DECAP_DSCP 2
329 #define XFRM_STATE_NOPMTUDISC 4
330 #define XFRM_STATE_WILDRECV 8
333 struct xfrm_usersa_id {
334 xfrm_address_t daddr;
340 struct xfrm_aevent_id {
341 struct xfrm_usersa_id sa_id;
342 xfrm_address_t saddr;
347 struct xfrm_userspi_info {
348 struct xfrm_usersa_info info;
353 struct xfrm_userpolicy_info {
354 struct xfrm_selector sel;
355 struct xfrm_lifetime_cfg lft;
356 struct xfrm_lifetime_cur curlft;
361 #define XFRM_POLICY_ALLOW 0
362 #define XFRM_POLICY_BLOCK 1
364 #define XFRM_POLICY_LOCALOK 1 /* Allow user to override global policy */
368 struct xfrm_userpolicy_id {
369 struct xfrm_selector sel;
374 struct xfrm_user_acquire {
376 xfrm_address_t saddr;
377 struct xfrm_selector sel;
378 struct xfrm_userpolicy_info policy;
385 struct xfrm_user_expire {
386 struct xfrm_usersa_info state;
390 struct xfrm_user_polexpire {
391 struct xfrm_userpolicy_info pol;
395 struct xfrm_usersa_flush {
399 struct xfrm_user_report {
401 struct xfrm_selector sel;
404 struct xfrm_user_migrate {
405 xfrm_address_t old_daddr;
406 xfrm_address_t old_saddr;
407 xfrm_address_t new_daddr;
408 xfrm_address_t new_saddr;
418 /* backwards compatibility for userspace */
419 #define XFRMGRP_ACQUIRE 1
420 #define XFRMGRP_EXPIRE 2
422 #define XFRMGRP_POLICY 8
423 #define XFRMGRP_REPORT 0x20
428 #define XFRMNLGRP_NONE XFRMNLGRP_NONE
430 #define XFRMNLGRP_ACQUIRE XFRMNLGRP_ACQUIRE
432 #define XFRMNLGRP_EXPIRE XFRMNLGRP_EXPIRE
434 #define XFRMNLGRP_SA XFRMNLGRP_SA
436 #define XFRMNLGRP_POLICY XFRMNLGRP_POLICY
438 #define XFRMNLGRP_AEVENTS XFRMNLGRP_AEVENTS
440 #define XFRMNLGRP_REPORT XFRMNLGRP_REPORT
442 #define XFRMNLGRP_MIGRATE XFRMNLGRP_MIGRATE
445 #define XFRMNLGRP_MAX (__XFRMNLGRP_MAX - 1)
447 #endif /* _LINUX_XFRM_H */