implemented gmp_rsa_public_key.encrypt() method
[strongswan.git] / src / include / linux / xfrm.h
1 #ifndef _LINUX_XFRM_H
2 #define _LINUX_XFRM_H
3
4 #include <linux/types.h>
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 */
13 typedef union
14 {
15 __be32 a4;
16 __be32 a6[4];
17 } xfrm_address_t;
18
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.
22 */
23 struct xfrm_id
24 {
25 xfrm_address_t daddr;
26 __be32 spi;
27 __u8 proto;
28 };
29
30 struct xfrm_sec_ctx {
31 __u8 ctx_doi;
32 __u8 ctx_alg;
33 __u16 ctx_len;
34 __u32 ctx_sid;
35 char ctx_str[0];
36 };
37
38 /* Security Context Domains of Interpretation */
39 #define XFRM_SC_DOI_RESERVED 0
40 #define XFRM_SC_DOI_LSM 1
41
42 /* Security Context Algorithms */
43 #define XFRM_SC_ALG_RESERVED 0
44 #define XFRM_SC_ALG_SELINUX 1
45
46 /* Selector, used as selector both on policy rules (SPD) and SAs. */
47
48 struct xfrm_selector
49 {
50 xfrm_address_t daddr;
51 xfrm_address_t saddr;
52 __be16 dport;
53 __be16 dport_mask;
54 __be16 sport;
55 __be16 sport_mask;
56 __u16 family;
57 __u8 prefixlen_d;
58 __u8 prefixlen_s;
59 __u8 proto;
60 int ifindex;
61 uid_t user;
62 };
63
64 #define XFRM_INF (~(__u64)0)
65
66 struct xfrm_lifetime_cfg
67 {
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;
76 };
77
78 struct xfrm_lifetime_cur
79 {
80 __u64 bytes;
81 __u64 packets;
82 __u64 add_time;
83 __u64 use_time;
84 };
85
86 struct xfrm_replay_state
87 {
88 __u32 oseq;
89 __u32 seq;
90 __u32 bitmap;
91 };
92
93 struct xfrm_algo {
94 char alg_name[64];
95 unsigned int alg_key_len; /* in bits */
96 char alg_key[0];
97 };
98
99 struct xfrm_algo_aead {
100 char alg_name[64];
101 unsigned int alg_key_len; /* in bits */
102 unsigned int alg_icv_len; /* in bits */
103 char alg_key[0];
104 };
105
106 struct xfrm_stats {
107 __u32 replay_window;
108 __u32 replay;
109 __u32 integrity_failed;
110 };
111
112 enum
113 {
114 XFRM_POLICY_TYPE_MAIN = 0,
115 XFRM_POLICY_TYPE_SUB = 1,
116 XFRM_POLICY_TYPE_MAX = 2,
117 XFRM_POLICY_TYPE_ANY = 255
118 };
119
120 enum
121 {
122 XFRM_POLICY_IN = 0,
123 XFRM_POLICY_OUT = 1,
124 XFRM_POLICY_FWD = 2,
125 XFRM_POLICY_MASK = 3,
126 XFRM_POLICY_MAX = 3
127 };
128
129 enum
130 {
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 */
135 };
136
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
143
144 /* Netlink configuration messages. */
145 enum {
146 XFRM_MSG_BASE = 0x10,
147
148 XFRM_MSG_NEWSA = 0x10,
149 #define XFRM_MSG_NEWSA XFRM_MSG_NEWSA
150 XFRM_MSG_DELSA,
151 #define XFRM_MSG_DELSA XFRM_MSG_DELSA
152 XFRM_MSG_GETSA,
153 #define XFRM_MSG_GETSA XFRM_MSG_GETSA
154
155 XFRM_MSG_NEWPOLICY,
156 #define XFRM_MSG_NEWPOLICY XFRM_MSG_NEWPOLICY
157 XFRM_MSG_DELPOLICY,
158 #define XFRM_MSG_DELPOLICY XFRM_MSG_DELPOLICY
159 XFRM_MSG_GETPOLICY,
160 #define XFRM_MSG_GETPOLICY XFRM_MSG_GETPOLICY
161
162 XFRM_MSG_ALLOCSPI,
163 #define XFRM_MSG_ALLOCSPI XFRM_MSG_ALLOCSPI
164 XFRM_MSG_ACQUIRE,
165 #define XFRM_MSG_ACQUIRE XFRM_MSG_ACQUIRE
166 XFRM_MSG_EXPIRE,
167 #define XFRM_MSG_EXPIRE XFRM_MSG_EXPIRE
168
169 XFRM_MSG_UPDPOLICY,
170 #define XFRM_MSG_UPDPOLICY XFRM_MSG_UPDPOLICY
171 XFRM_MSG_UPDSA,
172 #define XFRM_MSG_UPDSA XFRM_MSG_UPDSA
173
174 XFRM_MSG_POLEXPIRE,
175 #define XFRM_MSG_POLEXPIRE XFRM_MSG_POLEXPIRE
176
177 XFRM_MSG_FLUSHSA,
178 #define XFRM_MSG_FLUSHSA XFRM_MSG_FLUSHSA
179 XFRM_MSG_FLUSHPOLICY,
180 #define XFRM_MSG_FLUSHPOLICY XFRM_MSG_FLUSHPOLICY
181
182 XFRM_MSG_NEWAE,
183 #define XFRM_MSG_NEWAE XFRM_MSG_NEWAE
184 XFRM_MSG_GETAE,
185 #define XFRM_MSG_GETAE XFRM_MSG_GETAE
186
187 XFRM_MSG_REPORT,
188 #define XFRM_MSG_REPORT XFRM_MSG_REPORT
189
190 XFRM_MSG_MIGRATE,
191 #define XFRM_MSG_MIGRATE XFRM_MSG_MIGRATE
192
193 XFRM_MSG_NEWSADINFO,
194 #define XFRM_MSG_NEWSADINFO XFRM_MSG_NEWSADINFO
195 XFRM_MSG_GETSADINFO,
196 #define XFRM_MSG_GETSADINFO XFRM_MSG_GETSADINFO
197
198 XFRM_MSG_NEWSPDINFO,
199 #define XFRM_MSG_NEWSPDINFO XFRM_MSG_NEWSPDINFO
200 XFRM_MSG_GETSPDINFO,
201 #define XFRM_MSG_GETSPDINFO XFRM_MSG_GETSPDINFO
202
203 XFRM_MSG_MAPPING,
204 #define XFRM_MSG_MAPPING XFRM_MSG_MAPPING
205 __XFRM_MSG_MAX
206 };
207 #define XFRM_MSG_MAX (__XFRM_MSG_MAX - 1)
208
209 #define XFRM_NR_MSGTYPES (XFRM_MSG_MAX + 1 - XFRM_MSG_BASE)
210
211 /*
212 * Generic LSM security context for comunicating to user space
213 * NOTE: Same format as sadb_x_sec_ctx
214 */
215 struct xfrm_user_sec_ctx {
216 __u16 len;
217 __u16 exttype;
218 __u8 ctx_alg; /* LSMs: e.g., selinux == 1 */
219 __u8 ctx_doi;
220 __u16 ctx_len;
221 };
222
223 struct xfrm_user_tmpl {
224 struct xfrm_id id;
225 __u16 family;
226 xfrm_address_t saddr;
227 __u32 reqid;
228 __u8 mode;
229 __u8 share;
230 __u8 optional;
231 __u32 aalgos;
232 __u32 ealgos;
233 __u32 calgos;
234 };
235
236 struct xfrm_encap_tmpl {
237 __u16 encap_type;
238 __be16 encap_sport;
239 __be16 encap_dport;
240 xfrm_address_t encap_oa;
241 };
242
243 /* AEVENT flags */
244 enum xfrm_ae_ftype_t {
245 XFRM_AE_UNSPEC,
246 XFRM_AE_RTHR=1, /* replay threshold*/
247 XFRM_AE_RVAL=2, /* replay value */
248 XFRM_AE_LVAL=4, /* lifetime value */
249 XFRM_AE_ETHR=8, /* expiry timer threshold */
250 XFRM_AE_CR=16, /* Event cause is replay update */
251 XFRM_AE_CE=32, /* Event cause is timer expiry */
252 XFRM_AE_CU=64, /* Event cause is policy update */
253 __XFRM_AE_MAX
254
255 #define XFRM_AE_MAX (__XFRM_AE_MAX - 1)
256 };
257
258 struct xfrm_userpolicy_type {
259 __u8 type;
260 __u16 reserved1;
261 __u8 reserved2;
262 };
263
264 /* Netlink message attributes. */
265 enum xfrm_attr_type_t {
266 XFRMA_UNSPEC,
267 XFRMA_ALG_AUTH, /* struct xfrm_algo */
268 XFRMA_ALG_CRYPT, /* struct xfrm_algo */
269 XFRMA_ALG_COMP, /* struct xfrm_algo */
270 XFRMA_ENCAP, /* struct xfrm_algo + struct xfrm_encap_tmpl */
271 XFRMA_TMPL, /* 1 or more struct xfrm_user_tmpl */
272 XFRMA_SA,
273 XFRMA_POLICY,
274 XFRMA_SEC_CTX, /* struct xfrm_sec_ctx */
275 XFRMA_LTIME_VAL,
276 XFRMA_REPLAY_VAL,
277 XFRMA_REPLAY_THRESH,
278 XFRMA_ETIMER_THRESH,
279 XFRMA_SRCADDR, /* xfrm_address_t */
280 XFRMA_COADDR, /* xfrm_address_t */
281 XFRMA_LASTUSED,
282 XFRMA_POLICY_TYPE, /* struct xfrm_userpolicy_type */
283 XFRMA_MIGRATE,
284 XFRMA_ALG_AEAD, /* struct xfrm_algo_aead */
285 XFRMA_KMADDRESS, /* struct xfrm_user_kmaddress */
286 __XFRMA_MAX
287
288 #define XFRMA_MAX (__XFRMA_MAX - 1)
289 };
290
291 enum xfrm_sadattr_type_t {
292 XFRMA_SAD_UNSPEC,
293 XFRMA_SAD_CNT,
294 XFRMA_SAD_HINFO,
295 __XFRMA_SAD_MAX
296
297 #define XFRMA_SAD_MAX (__XFRMA_SAD_MAX - 1)
298 };
299
300 struct xfrmu_sadhinfo {
301 __u32 sadhcnt; /* current hash bkts */
302 __u32 sadhmcnt; /* max allowed hash bkts */
303 };
304
305 enum xfrm_spdattr_type_t {
306 XFRMA_SPD_UNSPEC,
307 XFRMA_SPD_INFO,
308 XFRMA_SPD_HINFO,
309 __XFRMA_SPD_MAX
310
311 #define XFRMA_SPD_MAX (__XFRMA_SPD_MAX - 1)
312 };
313
314 struct xfrmu_spdinfo {
315 __u32 incnt;
316 __u32 outcnt;
317 __u32 fwdcnt;
318 __u32 inscnt;
319 __u32 outscnt;
320 __u32 fwdscnt;
321 };
322
323 struct xfrmu_spdhinfo {
324 __u32 spdhcnt;
325 __u32 spdhmcnt;
326 };
327
328 struct xfrm_usersa_info {
329 struct xfrm_selector sel;
330 struct xfrm_id id;
331 xfrm_address_t saddr;
332 struct xfrm_lifetime_cfg lft;
333 struct xfrm_lifetime_cur curlft;
334 struct xfrm_stats stats;
335 __u32 seq;
336 __u32 reqid;
337 __u16 family;
338 __u8 mode; /* XFRM_MODE_xxx */
339 __u8 replay_window;
340 __u8 flags;
341 #define XFRM_STATE_NOECN 1
342 #define XFRM_STATE_DECAP_DSCP 2
343 #define XFRM_STATE_NOPMTUDISC 4
344 #define XFRM_STATE_WILDRECV 8
345 #define XFRM_STATE_ICMP 16
346 #define XFRM_STATE_AF_UNSPEC 32
347 };
348
349 struct xfrm_usersa_id {
350 xfrm_address_t daddr;
351 __be32 spi;
352 __u16 family;
353 __u8 proto;
354 };
355
356 struct xfrm_aevent_id {
357 struct xfrm_usersa_id sa_id;
358 xfrm_address_t saddr;
359 __u32 flags;
360 __u32 reqid;
361 };
362
363 struct xfrm_userspi_info {
364 struct xfrm_usersa_info info;
365 __u32 min;
366 __u32 max;
367 };
368
369 struct xfrm_userpolicy_info {
370 struct xfrm_selector sel;
371 struct xfrm_lifetime_cfg lft;
372 struct xfrm_lifetime_cur curlft;
373 __u32 priority;
374 __u32 index;
375 __u8 dir;
376 __u8 action;
377 #define XFRM_POLICY_ALLOW 0
378 #define XFRM_POLICY_BLOCK 1
379 __u8 flags;
380 #define XFRM_POLICY_LOCALOK 1 /* Allow user to override global policy */
381 /* Automatically expand selector to include matching ICMP payloads. */
382 #define XFRM_POLICY_ICMP 2
383 __u8 share;
384 };
385
386 struct xfrm_userpolicy_id {
387 struct xfrm_selector sel;
388 __u32 index;
389 __u8 dir;
390 };
391
392 struct xfrm_user_acquire {
393 struct xfrm_id id;
394 xfrm_address_t saddr;
395 struct xfrm_selector sel;
396 struct xfrm_userpolicy_info policy;
397 __u32 aalgos;
398 __u32 ealgos;
399 __u32 calgos;
400 __u32 seq;
401 };
402
403 struct xfrm_user_expire {
404 struct xfrm_usersa_info state;
405 __u8 hard;
406 };
407
408 struct xfrm_user_polexpire {
409 struct xfrm_userpolicy_info pol;
410 __u8 hard;
411 };
412
413 struct xfrm_usersa_flush {
414 __u8 proto;
415 };
416
417 struct xfrm_user_report {
418 __u8 proto;
419 struct xfrm_selector sel;
420 };
421
422 /* Used by MIGRATE to pass addresses IKE should use to perform
423 * SA negotiation with the peer */
424 struct xfrm_user_kmaddress {
425 xfrm_address_t local;
426 xfrm_address_t remote;
427 __u32 reserved;
428 __u16 family;
429 };
430
431 struct xfrm_user_migrate {
432 xfrm_address_t old_daddr;
433 xfrm_address_t old_saddr;
434 xfrm_address_t new_daddr;
435 xfrm_address_t new_saddr;
436 __u8 proto;
437 __u8 mode;
438 __u16 reserved;
439 __u32 reqid;
440 __u16 old_family;
441 __u16 new_family;
442 };
443
444 struct xfrm_user_mapping {
445 struct xfrm_usersa_id id;
446 __u32 reqid;
447 xfrm_address_t old_saddr;
448 xfrm_address_t new_saddr;
449 __be16 old_sport;
450 __be16 new_sport;
451 };
452
453 #ifndef __KERNEL__
454 /* backwards compatibility for userspace */
455 #define XFRMGRP_ACQUIRE 1
456 #define XFRMGRP_EXPIRE 2
457 #define XFRMGRP_SA 4
458 #define XFRMGRP_POLICY 8
459 #define XFRMGRP_REPORT 0x20
460 #endif
461
462 enum xfrm_nlgroups {
463 XFRMNLGRP_NONE,
464 #define XFRMNLGRP_NONE XFRMNLGRP_NONE
465 XFRMNLGRP_ACQUIRE,
466 #define XFRMNLGRP_ACQUIRE XFRMNLGRP_ACQUIRE
467 XFRMNLGRP_EXPIRE,
468 #define XFRMNLGRP_EXPIRE XFRMNLGRP_EXPIRE
469 XFRMNLGRP_SA,
470 #define XFRMNLGRP_SA XFRMNLGRP_SA
471 XFRMNLGRP_POLICY,
472 #define XFRMNLGRP_POLICY XFRMNLGRP_POLICY
473 XFRMNLGRP_AEVENTS,
474 #define XFRMNLGRP_AEVENTS XFRMNLGRP_AEVENTS
475 XFRMNLGRP_REPORT,
476 #define XFRMNLGRP_REPORT XFRMNLGRP_REPORT
477 XFRMNLGRP_MIGRATE,
478 #define XFRMNLGRP_MIGRATE XFRMNLGRP_MIGRATE
479 XFRMNLGRP_MAPPING,
480 #define XFRMNLGRP_MAPPING XFRMNLGRP_MAPPING
481 __XFRMNLGRP_MAX
482 };
483 #define XFRMNLGRP_MAX (__XFRMNLGRP_MAX - 1)
484
485 #endif /* _LINUX_XFRM_H */