~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

TOMOYO Linux Cross Reference
Linux/include/uapi/linux/xfrm.h

Version: ~ [ linux-6.1-rc5 ] ~ [ linux-6.0.8 ] ~ [ linux-5.19.17 ] ~ [ linux-5.18.19 ] ~ [ linux-5.17.15 ] ~ [ linux-5.16.20 ] ~ [ linux-5.15.78 ] ~ [ linux-5.14.21 ] ~ [ linux-5.13.19 ] ~ [ linux-5.12.19 ] ~ [ linux-5.11.22 ] ~ [ linux-5.10.154 ] ~ [ linux-5.9.16 ] ~ [ linux-5.8.18 ] ~ [ linux-5.7.19 ] ~ [ linux-5.6.19 ] ~ [ linux-5.5.19 ] ~ [ linux-5.4.224 ] ~ [ linux-5.3.18 ] ~ [ linux-5.2.21 ] ~ [ linux-5.1.21 ] ~ [ linux-5.0.21 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.265 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.299 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.333 ] ~ [ linux-4.8.17 ] ~ [ linux-4.7.10 ] ~ [ linux-4.6.7 ] ~ [ linux-4.5.7 ] ~ [ linux-4.4.302 ] ~ [ linux-4.3.6 ] ~ [ linux-4.2.8 ] ~ [ linux-4.1.52 ] ~ [ linux-4.0.9 ] ~ [ linux-3.10.108 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.9 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

  1 #ifndef _LINUX_XFRM_H
  2 #define _LINUX_XFRM_H
  3 
  4 #include <linux/in6.h>
  5 #include <linux/types.h>
  6 
  7 /* All of the structures in this file may not change size as they are
  8  * passed into the kernel from userspace via netlink sockets.
  9  */
 10 
 11 /* Structure to encapsulate addresses. I do not want to use
 12  * "standard" structure. My apologies.
 13  */
 14 typedef union {
 15         __be32          a4;
 16         __be32          a6[4];
 17         struct in6_addr in6;
 18 } xfrm_address_t;
 19 
 20 /* Ident of a specific xfrm_state. It is used on input to lookup
 21  * the state by (spi,daddr,ah/esp) or to store information about
 22  * spi, protocol and tunnel address on output.
 23  */
 24 struct xfrm_id {
 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         xfrm_address_t  daddr;
 50         xfrm_address_t  saddr;
 51         __be16  dport;
 52         __be16  dport_mask;
 53         __be16  sport;
 54         __be16  sport_mask;
 55         __u16   family;
 56         __u8    prefixlen_d;
 57         __u8    prefixlen_s;
 58         __u8    proto;
 59         int     ifindex;
 60         __kernel_uid32_t        user;
 61 };
 62 
 63 #define XFRM_INF (~(__u64)0)
 64 
 65 struct xfrm_lifetime_cfg {
 66         __u64   soft_byte_limit;
 67         __u64   hard_byte_limit;
 68         __u64   soft_packet_limit;
 69         __u64   hard_packet_limit;
 70         __u64   soft_add_expires_seconds;
 71         __u64   hard_add_expires_seconds;
 72         __u64   soft_use_expires_seconds;
 73         __u64   hard_use_expires_seconds;
 74 };
 75 
 76 struct xfrm_lifetime_cur {
 77         __u64   bytes;
 78         __u64   packets;
 79         __u64   add_time;
 80         __u64   use_time;
 81 };
 82 
 83 struct xfrm_replay_state {
 84         __u32   oseq;
 85         __u32   seq;
 86         __u32   bitmap;
 87 };
 88 
 89 #define XFRMA_REPLAY_ESN_MAX    4096
 90 
 91 struct xfrm_replay_state_esn {
 92         unsigned int    bmp_len;
 93         __u32           oseq;
 94         __u32           seq;
 95         __u32           oseq_hi;
 96         __u32           seq_hi;
 97         __u32           replay_window;
 98         __u32           bmp[0];
 99 };
100 
101 struct xfrm_algo {
102         char            alg_name[64];
103         unsigned int    alg_key_len;    /* in bits */
104         char            alg_key[0];
105 };
106 
107 struct xfrm_algo_auth {
108         char            alg_name[64];
109         unsigned int    alg_key_len;    /* in bits */
110         unsigned int    alg_trunc_len;  /* in bits */
111         char            alg_key[0];
112 };
113 
114 struct xfrm_algo_aead {
115         char            alg_name[64];
116         unsigned int    alg_key_len;    /* in bits */
117         unsigned int    alg_icv_len;    /* in bits */
118         char            alg_key[0];
119 };
120 
121 struct xfrm_stats {
122         __u32   replay_window;
123         __u32   replay;
124         __u32   integrity_failed;
125 };
126 
127 enum {
128         XFRM_POLICY_TYPE_MAIN   = 0,
129         XFRM_POLICY_TYPE_SUB    = 1,
130         XFRM_POLICY_TYPE_MAX    = 2,
131         XFRM_POLICY_TYPE_ANY    = 255
132 };
133 
134 enum {
135         XFRM_POLICY_IN  = 0,
136         XFRM_POLICY_OUT = 1,
137         XFRM_POLICY_FWD = 2,
138         XFRM_POLICY_MASK = 3,
139         XFRM_POLICY_MAX = 3
140 };
141 
142 enum {
143         XFRM_SHARE_ANY,         /* No limitations */
144         XFRM_SHARE_SESSION,     /* For this session only */
145         XFRM_SHARE_USER,        /* For this user only */
146         XFRM_SHARE_UNIQUE       /* Use once */
147 };
148 
149 #define XFRM_MODE_TRANSPORT 0
150 #define XFRM_MODE_TUNNEL 1
151 #define XFRM_MODE_ROUTEOPTIMIZATION 2
152 #define XFRM_MODE_IN_TRIGGER 3
153 #define XFRM_MODE_BEET 4
154 #define XFRM_MODE_MAX 5
155 
156 /* Netlink configuration messages.  */
157 enum {
158         XFRM_MSG_BASE = 0x10,
159 
160         XFRM_MSG_NEWSA = 0x10,
161 #define XFRM_MSG_NEWSA XFRM_MSG_NEWSA
162         XFRM_MSG_DELSA,
163 #define XFRM_MSG_DELSA XFRM_MSG_DELSA
164         XFRM_MSG_GETSA,
165 #define XFRM_MSG_GETSA XFRM_MSG_GETSA
166 
167         XFRM_MSG_NEWPOLICY,
168 #define XFRM_MSG_NEWPOLICY XFRM_MSG_NEWPOLICY
169         XFRM_MSG_DELPOLICY,
170 #define XFRM_MSG_DELPOLICY XFRM_MSG_DELPOLICY
171         XFRM_MSG_GETPOLICY,
172 #define XFRM_MSG_GETPOLICY XFRM_MSG_GETPOLICY
173 
174         XFRM_MSG_ALLOCSPI,
175 #define XFRM_MSG_ALLOCSPI XFRM_MSG_ALLOCSPI
176         XFRM_MSG_ACQUIRE,
177 #define XFRM_MSG_ACQUIRE XFRM_MSG_ACQUIRE
178         XFRM_MSG_EXPIRE,
179 #define XFRM_MSG_EXPIRE XFRM_MSG_EXPIRE
180 
181         XFRM_MSG_UPDPOLICY,
182 #define XFRM_MSG_UPDPOLICY XFRM_MSG_UPDPOLICY
183         XFRM_MSG_UPDSA,
184 #define XFRM_MSG_UPDSA XFRM_MSG_UPDSA
185 
186         XFRM_MSG_POLEXPIRE,
187 #define XFRM_MSG_POLEXPIRE XFRM_MSG_POLEXPIRE
188 
189         XFRM_MSG_FLUSHSA,
190 #define XFRM_MSG_FLUSHSA XFRM_MSG_FLUSHSA
191         XFRM_MSG_FLUSHPOLICY,
192 #define XFRM_MSG_FLUSHPOLICY XFRM_MSG_FLUSHPOLICY
193 
194         XFRM_MSG_NEWAE,
195 #define XFRM_MSG_NEWAE XFRM_MSG_NEWAE
196         XFRM_MSG_GETAE,
197 #define XFRM_MSG_GETAE XFRM_MSG_GETAE
198 
199         XFRM_MSG_REPORT,
200 #define XFRM_MSG_REPORT XFRM_MSG_REPORT
201 
202         XFRM_MSG_MIGRATE,
203 #define XFRM_MSG_MIGRATE XFRM_MSG_MIGRATE
204 
205         XFRM_MSG_NEWSADINFO,
206 #define XFRM_MSG_NEWSADINFO XFRM_MSG_NEWSADINFO
207         XFRM_MSG_GETSADINFO,
208 #define XFRM_MSG_GETSADINFO XFRM_MSG_GETSADINFO
209 
210         XFRM_MSG_NEWSPDINFO,
211 #define XFRM_MSG_NEWSPDINFO XFRM_MSG_NEWSPDINFO
212         XFRM_MSG_GETSPDINFO,
213 #define XFRM_MSG_GETSPDINFO XFRM_MSG_GETSPDINFO
214 
215         XFRM_MSG_MAPPING,
216 #define XFRM_MSG_MAPPING XFRM_MSG_MAPPING
217         __XFRM_MSG_MAX
218 };
219 #define XFRM_MSG_MAX (__XFRM_MSG_MAX - 1)
220 
221 #define XFRM_NR_MSGTYPES (XFRM_MSG_MAX + 1 - XFRM_MSG_BASE)
222 
223 /*
224  * Generic LSM security context for comunicating to user space
225  * NOTE: Same format as sadb_x_sec_ctx
226  */
227 struct xfrm_user_sec_ctx {
228         __u16                   len;
229         __u16                   exttype;
230         __u8                    ctx_alg;  /* LSMs: e.g., selinux == 1 */
231         __u8                    ctx_doi;
232         __u16                   ctx_len;
233 };
234 
235 struct xfrm_user_tmpl {
236         struct xfrm_id          id;
237         __u16                   family;
238         xfrm_address_t          saddr;
239         __u32                   reqid;
240         __u8                    mode;
241         __u8                    share;
242         __u8                    optional;
243         __u32                   aalgos;
244         __u32                   ealgos;
245         __u32                   calgos;
246 };
247 
248 struct xfrm_encap_tmpl {
249         __u16           encap_type;
250         __be16          encap_sport;
251         __be16          encap_dport;
252         xfrm_address_t  encap_oa;
253 };
254 
255 /* AEVENT flags  */
256 enum xfrm_ae_ftype_t {
257         XFRM_AE_UNSPEC,
258         XFRM_AE_RTHR=1, /* replay threshold*/
259         XFRM_AE_RVAL=2, /* replay value */
260         XFRM_AE_LVAL=4, /* lifetime value */
261         XFRM_AE_ETHR=8, /* expiry timer threshold */
262         XFRM_AE_CR=16, /* Event cause is replay update */
263         XFRM_AE_CE=32, /* Event cause is timer expiry */
264         XFRM_AE_CU=64, /* Event cause is policy update */
265         __XFRM_AE_MAX
266 
267 #define XFRM_AE_MAX (__XFRM_AE_MAX - 1)
268 };
269 
270 struct xfrm_userpolicy_type {
271         __u8            type;
272         __u16           reserved1;
273         __u8            reserved2;
274 };
275 
276 /* Netlink message attributes.  */
277 enum xfrm_attr_type_t {
278         XFRMA_UNSPEC,
279         XFRMA_ALG_AUTH,         /* struct xfrm_algo */
280         XFRMA_ALG_CRYPT,        /* struct xfrm_algo */
281         XFRMA_ALG_COMP,         /* struct xfrm_algo */
282         XFRMA_ENCAP,            /* struct xfrm_algo + struct xfrm_encap_tmpl */
283         XFRMA_TMPL,             /* 1 or more struct xfrm_user_tmpl */
284         XFRMA_SA,               /* struct xfrm_usersa_info  */
285         XFRMA_POLICY,           /*struct xfrm_userpolicy_info */
286         XFRMA_SEC_CTX,          /* struct xfrm_sec_ctx */
287         XFRMA_LTIME_VAL,
288         XFRMA_REPLAY_VAL,
289         XFRMA_REPLAY_THRESH,
290         XFRMA_ETIMER_THRESH,
291         XFRMA_SRCADDR,          /* xfrm_address_t */
292         XFRMA_COADDR,           /* xfrm_address_t */
293         XFRMA_LASTUSED,         /* unsigned long  */
294         XFRMA_POLICY_TYPE,      /* struct xfrm_userpolicy_type */
295         XFRMA_MIGRATE,
296         XFRMA_ALG_AEAD,         /* struct xfrm_algo_aead */
297         XFRMA_KMADDRESS,        /* struct xfrm_user_kmaddress */
298         XFRMA_ALG_AUTH_TRUNC,   /* struct xfrm_algo_auth */
299         XFRMA_MARK,             /* struct xfrm_mark */
300         XFRMA_TFCPAD,           /* __u32 */
301         XFRMA_REPLAY_ESN_VAL,   /* struct xfrm_replay_esn */
302         XFRMA_SA_EXTRA_FLAGS,   /* __u32 */
303         XFRMA_PROTO,            /* __u8 */
304         XFRMA_ADDRESS_FILTER,   /* struct xfrm_address_filter */
305         __XFRMA_MAX
306 
307 #define XFRMA_MAX (__XFRMA_MAX - 1)
308 };
309 
310 struct xfrm_mark {
311         __u32           v; /* value */
312         __u32           m; /* mask */
313 };
314 
315 enum xfrm_sadattr_type_t {
316         XFRMA_SAD_UNSPEC,
317         XFRMA_SAD_CNT,
318         XFRMA_SAD_HINFO,
319         __XFRMA_SAD_MAX
320 
321 #define XFRMA_SAD_MAX (__XFRMA_SAD_MAX - 1)
322 };
323 
324 struct xfrmu_sadhinfo {
325         __u32 sadhcnt; /* current hash bkts */
326         __u32 sadhmcnt; /* max allowed hash bkts */
327 };
328 
329 enum xfrm_spdattr_type_t {
330         XFRMA_SPD_UNSPEC,
331         XFRMA_SPD_INFO,
332         XFRMA_SPD_HINFO,
333         XFRMA_SPD_IPV4_HTHRESH,
334         XFRMA_SPD_IPV6_HTHRESH,
335         __XFRMA_SPD_MAX
336 
337 #define XFRMA_SPD_MAX (__XFRMA_SPD_MAX - 1)
338 };
339 
340 struct xfrmu_spdinfo {
341         __u32 incnt;
342         __u32 outcnt;
343         __u32 fwdcnt;
344         __u32 inscnt;
345         __u32 outscnt;
346         __u32 fwdscnt;
347 };
348 
349 struct xfrmu_spdhinfo {
350         __u32 spdhcnt;
351         __u32 spdhmcnt;
352 };
353 
354 struct xfrmu_spdhthresh {
355         __u8 lbits;
356         __u8 rbits;
357 };
358 
359 struct xfrm_usersa_info {
360         struct xfrm_selector            sel;
361         struct xfrm_id                  id;
362         xfrm_address_t                  saddr;
363         struct xfrm_lifetime_cfg        lft;
364         struct xfrm_lifetime_cur        curlft;
365         struct xfrm_stats               stats;
366         __u32                           seq;
367         __u32                           reqid;
368         __u16                           family;
369         __u8                            mode;           /* XFRM_MODE_xxx */
370         __u8                            replay_window;
371         __u8                            flags;
372 #define XFRM_STATE_NOECN        1
373 #define XFRM_STATE_DECAP_DSCP   2
374 #define XFRM_STATE_NOPMTUDISC   4
375 #define XFRM_STATE_WILDRECV     8
376 #define XFRM_STATE_ICMP         16
377 #define XFRM_STATE_AF_UNSPEC    32
378 #define XFRM_STATE_ALIGN4       64
379 #define XFRM_STATE_ESN          128
380 };
381 
382 #define XFRM_SA_XFLAG_DONT_ENCAP_DSCP   1
383 
384 struct xfrm_usersa_id {
385         xfrm_address_t                  daddr;
386         __be32                          spi;
387         __u16                           family;
388         __u8                            proto;
389 };
390 
391 struct xfrm_aevent_id {
392         struct xfrm_usersa_id           sa_id;
393         xfrm_address_t                  saddr;
394         __u32                           flags;
395         __u32                           reqid;
396 };
397 
398 struct xfrm_userspi_info {
399         struct xfrm_usersa_info         info;
400         __u32                           min;
401         __u32                           max;
402 };
403 
404 struct xfrm_userpolicy_info {
405         struct xfrm_selector            sel;
406         struct xfrm_lifetime_cfg        lft;
407         struct xfrm_lifetime_cur        curlft;
408         __u32                           priority;
409         __u32                           index;
410         __u8                            dir;
411         __u8                            action;
412 #define XFRM_POLICY_ALLOW       0
413 #define XFRM_POLICY_BLOCK       1
414         __u8                            flags;
415 #define XFRM_POLICY_LOCALOK     1       /* Allow user to override global policy */
416         /* Automatically expand selector to include matching ICMP payloads. */
417 #define XFRM_POLICY_ICMP        2
418         __u8                            share;
419 };
420 
421 struct xfrm_userpolicy_id {
422         struct xfrm_selector            sel;
423         __u32                           index;
424         __u8                            dir;
425 };
426 
427 struct xfrm_user_acquire {
428         struct xfrm_id                  id;
429         xfrm_address_t                  saddr;
430         struct xfrm_selector            sel;
431         struct xfrm_userpolicy_info     policy;
432         __u32                           aalgos;
433         __u32                           ealgos;
434         __u32                           calgos;
435         __u32                           seq;
436 };
437 
438 struct xfrm_user_expire {
439         struct xfrm_usersa_info         state;
440         __u8                            hard;
441 };
442 
443 struct xfrm_user_polexpire {
444         struct xfrm_userpolicy_info     pol;
445         __u8                            hard;
446 };
447 
448 struct xfrm_usersa_flush {
449         __u8                            proto;
450 };
451 
452 struct xfrm_user_report {
453         __u8                            proto;
454         struct xfrm_selector            sel;
455 };
456 
457 /* Used by MIGRATE to pass addresses IKE should use to perform
458  * SA negotiation with the peer */
459 struct xfrm_user_kmaddress {
460         xfrm_address_t                  local;
461         xfrm_address_t                  remote;
462         __u32                           reserved;
463         __u16                           family;
464 };
465 
466 struct xfrm_user_migrate {
467         xfrm_address_t                  old_daddr;
468         xfrm_address_t                  old_saddr;
469         xfrm_address_t                  new_daddr;
470         xfrm_address_t                  new_saddr;
471         __u8                            proto;
472         __u8                            mode;
473         __u16                           reserved;
474         __u32                           reqid;
475         __u16                           old_family;
476         __u16                           new_family;
477 };
478 
479 struct xfrm_user_mapping {
480         struct xfrm_usersa_id           id;
481         __u32                           reqid;
482         xfrm_address_t                  old_saddr;
483         xfrm_address_t                  new_saddr;
484         __be16                          old_sport;
485         __be16                          new_sport;
486 };
487 
488 struct xfrm_address_filter {
489         xfrm_address_t                  saddr;
490         xfrm_address_t                  daddr;
491         __u16                           family;
492         __u8                            splen;
493         __u8                            dplen;
494 };
495 
496 #ifndef __KERNEL__
497 /* backwards compatibility for userspace */
498 #define XFRMGRP_ACQUIRE         1
499 #define XFRMGRP_EXPIRE          2
500 #define XFRMGRP_SA              4
501 #define XFRMGRP_POLICY          8
502 #define XFRMGRP_REPORT          0x20
503 #endif
504 
505 enum xfrm_nlgroups {
506         XFRMNLGRP_NONE,
507 #define XFRMNLGRP_NONE          XFRMNLGRP_NONE
508         XFRMNLGRP_ACQUIRE,
509 #define XFRMNLGRP_ACQUIRE       XFRMNLGRP_ACQUIRE
510         XFRMNLGRP_EXPIRE,
511 #define XFRMNLGRP_EXPIRE        XFRMNLGRP_EXPIRE
512         XFRMNLGRP_SA,
513 #define XFRMNLGRP_SA            XFRMNLGRP_SA
514         XFRMNLGRP_POLICY,
515 #define XFRMNLGRP_POLICY        XFRMNLGRP_POLICY
516         XFRMNLGRP_AEVENTS,
517 #define XFRMNLGRP_AEVENTS       XFRMNLGRP_AEVENTS
518         XFRMNLGRP_REPORT,
519 #define XFRMNLGRP_REPORT        XFRMNLGRP_REPORT
520         XFRMNLGRP_MIGRATE,
521 #define XFRMNLGRP_MIGRATE       XFRMNLGRP_MIGRATE
522         XFRMNLGRP_MAPPING,
523 #define XFRMNLGRP_MAPPING       XFRMNLGRP_MAPPING
524         __XFRMNLGRP_MAX
525 };
526 #define XFRMNLGRP_MAX   (__XFRMNLGRP_MAX - 1)
527 
528 #endif /* _LINUX_XFRM_H */
529 

~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

kernel.org | git.kernel.org | LWN.net | Project Home | Wiki (Japanese) | Wiki (English) | SVN repository | Mail admin

Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.

osdn.jp