1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2 /* PF_KEY user interface, this is defined by rfc2367 so
3 * do not make arbitrary modifications or else this header
4 * file will not be compliant.
5 */
6
7 #ifndef _LINUX_PFKEY2_H
8 #define _LINUX_PFKEY2_H
9
10 #include <linux/types.h>
11
12 #define PF_KEY_V2 2
13 #define PFKEYV2_REVISION 199806L
14
15 struct sadb_msg {
16 __u8 sadb_msg_version;
17 __u8 sadb_msg_type;
18 __u8 sadb_msg_errno;
19 __u8 sadb_msg_satype;
20 __u16 sadb_msg_len;
21 __u16 sadb_msg_reserved;
22 __u32 sadb_msg_seq;
23 __u32 sadb_msg_pid;
24 } __attribute__((packed));
25 /* sizeof(struct sadb_msg) == 16 */
26
27 struct sadb_ext {
28 __u16 sadb_ext_len;
29 __u16 sadb_ext_type;
30 } __attribute__((packed));
31 /* sizeof(struct sadb_ext) == 4 */
32
33 struct sadb_sa {
34 __u16 sadb_sa_len;
35 __u16 sadb_sa_exttype;
36 __be32 sadb_sa_spi;
37 __u8 sadb_sa_replay;
38 __u8 sadb_sa_state;
39 __u8 sadb_sa_auth;
40 __u8 sadb_sa_encrypt;
41 __u32 sadb_sa_flags;
42 } __attribute__((packed));
43 /* sizeof(struct sadb_sa) == 16 */
44
45 struct sadb_lifetime {
46 __u16 sadb_lifetime_len;
47 __u16 sadb_lifetime_exttype;
48 __u32 sadb_lifetime_allocations;
49 __u64 sadb_lifetime_bytes;
50 __u64 sadb_lifetime_addtime;
51 __u64 sadb_lifetime_usetime;
52 } __attribute__((packed));
53 /* sizeof(struct sadb_lifetime) == 32 */
54
55 struct sadb_address {
56 __u16 sadb_address_len;
57 __u16 sadb_address_exttype;
58 __u8 sadb_address_proto;
59 __u8 sadb_address_prefixlen;
60 __u16 sadb_address_reserved;
61 } __attribute__((packed));
62 /* sizeof(struct sadb_address) == 8 */
63
64 struct sadb_key {
65 __u16 sadb_key_len;
66 __u16 sadb_key_exttype;
67 __u16 sadb_key_bits;
68 __u16 sadb_key_reserved;
69 } __attribute__((packed));
70 /* sizeof(struct sadb_key) == 8 */
71
72 struct sadb_ident {
73 __u16 sadb_ident_len;
74 __u16 sadb_ident_exttype;
75 __u16 sadb_ident_type;
76 __u16 sadb_ident_reserved;
77 __u64 sadb_ident_id;
78 } __attribute__((packed));
79 /* sizeof(struct sadb_ident) == 16 */
80
81 struct sadb_sens {
82 __u16 sadb_sens_len;
83 __u16 sadb_sens_exttype;
84 __u32 sadb_sens_dpd;
85 __u8 sadb_sens_sens_level;
86 __u8 sadb_sens_sens_len;
87 __u8 sadb_sens_integ_level;
88 __u8 sadb_sens_integ_len;
89 __u32 sadb_sens_reserved;
90 } __attribute__((packed));
91 /* sizeof(struct sadb_sens) == 16 */
92
93 /* followed by:
94 __u64 sadb_sens_bitmap[sens_len];
95 __u64 sadb_integ_bitmap[integ_len]; */
96
97 struct sadb_prop {
98 __u16 sadb_prop_len;
99 __u16 sadb_prop_exttype;
100 __u8 sadb_prop_replay;
101 __u8 sadb_prop_reserved[3];
102 } __attribute__((packed));
103 /* sizeof(struct sadb_prop) == 8 */
104
105 /* followed by:
106 struct sadb_comb sadb_combs[(sadb_prop_len +
107 sizeof(__u64) - sizeof(struct sadb_prop)) /
108 sizeof(struct sadb_comb)]; */
109
110 struct sadb_comb {
111 __u8 sadb_comb_auth;
112 __u8 sadb_comb_encrypt;
113 __u16 sadb_comb_flags;
114 __u16 sadb_comb_auth_minbits;
115 __u16 sadb_comb_auth_maxbits;
116 __u16 sadb_comb_encrypt_minbits;
117 __u16 sadb_comb_encrypt_maxbits;
118 __u32 sadb_comb_reserved;
119 __u32 sadb_comb_soft_allocations;
120 __u32 sadb_comb_hard_allocations;
121 __u64 sadb_comb_soft_bytes;
122 __u64 sadb_comb_hard_bytes;
123 __u64 sadb_comb_soft_addtime;
124 __u64 sadb_comb_hard_addtime;
125 __u64 sadb_comb_soft_usetime;
126 __u64 sadb_comb_hard_usetime;
127 } __attribute__((packed));
128 /* sizeof(struct sadb_comb) == 72 */
129
130 struct sadb_supported {
131 __u16 sadb_supported_len;
132 __u16 sadb_supported_exttype;
133 __u32 sadb_supported_reserved;
134 } __attribute__((packed));
135 /* sizeof(struct sadb_supported) == 8 */
136
137 /* followed by:
138 struct sadb_alg sadb_algs[(sadb_supported_len +
139 sizeof(__u64) - sizeof(struct sadb_supported)) /
140 sizeof(struct sadb_alg)]; */
141
142 struct sadb_alg {
143 __u8 sadb_alg_id;
144 __u8 sadb_alg_ivlen;
145 __u16 sadb_alg_minbits;
146 __u16 sadb_alg_maxbits;
147 __u16 sadb_alg_reserved;
148 } __attribute__((packed));
149 /* sizeof(struct sadb_alg) == 8 */
150
151 struct sadb_spirange {
152 __u16 sadb_spirange_len;
153 __u16 sadb_spirange_exttype;
154 __u32 sadb_spirange_min;
155 __u32 sadb_spirange_max;
156 __u32 sadb_spirange_reserved;
157 } __attribute__((packed));
158 /* sizeof(struct sadb_spirange) == 16 */
159
160 struct sadb_x_kmprivate {
161 __u16 sadb_x_kmprivate_len;
162 __u16 sadb_x_kmprivate_exttype;
163 __u32 sadb_x_kmprivate_reserved;
164 } __attribute__((packed));
165 /* sizeof(struct sadb_x_kmprivate) == 8 */
166
167 struct sadb_x_sa2 {
168 __u16 sadb_x_sa2_len;
169 __u16 sadb_x_sa2_exttype;
170 __u8 sadb_x_sa2_mode;
171 __u8 sadb_x_sa2_reserved1;
172 __u16 sadb_x_sa2_reserved2;
173 __u32 sadb_x_sa2_sequence;
174 __u32 sadb_x_sa2_reqid;
175 } __attribute__((packed));
176 /* sizeof(struct sadb_x_sa2) == 16 */
177
178 struct sadb_x_policy {
179 __u16 sadb_x_policy_len;
180 __u16 sadb_x_policy_exttype;
181 __u16 sadb_x_policy_type;
182 __u8 sadb_x_policy_dir;
183 __u8 sadb_x_policy_reserved;
184 __u32 sadb_x_policy_id;
185 __u32 sadb_x_policy_priority;
186 } __attribute__((packed));
187 /* sizeof(struct sadb_x_policy) == 16 */
188
189 struct sadb_x_ipsecrequest {
190 __u16 sadb_x_ipsecrequest_len;
191 __u16 sadb_x_ipsecrequest_proto;
192 __u8 sadb_x_ipsecrequest_mode;
193 __u8 sadb_x_ipsecrequest_level;
194 __u16 sadb_x_ipsecrequest_reserved1;
195 __u32 sadb_x_ipsecrequest_reqid;
196 __u32 sadb_x_ipsecrequest_reserved2;
197 } __attribute__((packed));
198 /* sizeof(struct sadb_x_ipsecrequest) == 16 */
199
200 /* This defines the TYPE of Nat Traversal in use. Currently only one
201 * type of NAT-T is supported, draft-ietf-ipsec-udp-encaps-06
202 */
203 struct sadb_x_nat_t_type {
204 __u16 sadb_x_nat_t_type_len;
205 __u16 sadb_x_nat_t_type_exttype;
206 __u8 sadb_x_nat_t_type_type;
207 __u8 sadb_x_nat_t_type_reserved[3];
208 } __attribute__((packed));
209 /* sizeof(struct sadb_x_nat_t_type) == 8 */
210
211 /* Pass a NAT Traversal port (Source or Dest port) */
212 struct sadb_x_nat_t_port {
213 __u16 sadb_x_nat_t_port_len;
214 __u16 sadb_x_nat_t_port_exttype;
215 __be16 sadb_x_nat_t_port_port;
216 __u16 sadb_x_nat_t_port_reserved;
217 } __attribute__((packed));
218 /* sizeof(struct sadb_x_nat_t_port) == 8 */
219
220 /* Generic LSM security context */
221 struct sadb_x_sec_ctx {
222 __u16 sadb_x_sec_len;
223 __u16 sadb_x_sec_exttype;
224 __u8 sadb_x_ctx_alg; /* LSMs: e.g., selinux == 1 */
225 __u8 sadb_x_ctx_doi;
226 __u16 sadb_x_ctx_len;
227 } __attribute__((packed));
228 /* sizeof(struct sadb_sec_ctx) = 8 */
229
230 /* Used by MIGRATE to pass addresses IKE will use to perform
231 * negotiation with the peer */
232 struct sadb_x_kmaddress {
233 __u16 sadb_x_kmaddress_len;
234 __u16 sadb_x_kmaddress_exttype;
235 __u32 sadb_x_kmaddress_reserved;
236 } __attribute__((packed));
237 /* sizeof(struct sadb_x_kmaddress) == 8 */
238
239 /* To specify the SA dump filter */
240 struct sadb_x_filter {
241 __u16 sadb_x_filter_len;
242 __u16 sadb_x_filter_exttype;
243 __u32 sadb_x_filter_saddr[4];
244 __u32 sadb_x_filter_daddr[4];
245 __u16 sadb_x_filter_family;
246 __u8 sadb_x_filter_splen;
247 __u8 sadb_x_filter_dplen;
248 } __attribute__((packed));
249 /* sizeof(struct sadb_x_filter) == 40 */
250
251 /* Message types */
252 #define SADB_RESERVED 0
253 #define SADB_GETSPI 1
254 #define SADB_UPDATE 2
255 #define SADB_ADD 3
256 #define SADB_DELETE 4
257 #define SADB_GET 5
258 #define SADB_ACQUIRE 6
259 #define SADB_REGISTER 7
260 #define SADB_EXPIRE 8
261 #define SADB_FLUSH 9
262 #define SADB_DUMP 10
263 #define SADB_X_PROMISC 11
264 #define SADB_X_PCHANGE 12
265 #define SADB_X_SPDUPDATE 13
266 #define SADB_X_SPDADD 14
267 #define SADB_X_SPDDELETE 15
268 #define SADB_X_SPDGET 16
269 #define SADB_X_SPDACQUIRE 17
270 #define SADB_X_SPDDUMP 18
271 #define SADB_X_SPDFLUSH 19
272 #define SADB_X_SPDSETIDX 20
273 #define SADB_X_SPDEXPIRE 21
274 #define SADB_X_SPDDELETE2 22
275 #define SADB_X_NAT_T_NEW_MAPPING 23
276 #define SADB_X_MIGRATE 24
277 #define SADB_MAX 24
278
279 /* Security Association flags */
280 #define SADB_SAFLAGS_PFS 1
281 #define SADB_SAFLAGS_NOPMTUDISC 0x20000000
282 #define SADB_SAFLAGS_DECAP_DSCP 0x40000000
283 #define SADB_SAFLAGS_NOECN 0x80000000
284
285 /* Security Association states */
286 #define SADB_SASTATE_LARVAL 0
287 #define SADB_SASTATE_MATURE 1
288 #define SADB_SASTATE_DYING 2
289 #define SADB_SASTATE_DEAD 3
290 #define SADB_SASTATE_MAX 3
291
292 /* Security Association types */
293 #define SADB_SATYPE_UNSPEC 0
294 #define SADB_SATYPE_AH 2
295 #define SADB_SATYPE_ESP 3
296 #define SADB_SATYPE_RSVP 5
297 #define SADB_SATYPE_OSPFV2 6
298 #define SADB_SATYPE_RIPV2 7
299 #define SADB_SATYPE_MIP 8
300 #define SADB_X_SATYPE_IPCOMP 9
301 #define SADB_SATYPE_MAX 9
302
303 /* Authentication algorithms */
304 #define SADB_AALG_NONE 0
305 #define SADB_AALG_MD5HMAC 2
306 #define SADB_AALG_SHA1HMAC 3
307 #define SADB_X_AALG_SHA2_256HMAC 5
308 #define SADB_X_AALG_SHA2_384HMAC 6
309 #define SADB_X_AALG_SHA2_512HMAC 7
310 #define SADB_X_AALG_RIPEMD160HMAC 8
311 #define SADB_X_AALG_AES_XCBC_MAC 9
312 #define SADB_X_AALG_SM3_256HMAC 10
313 #define SADB_X_AALG_NULL 251 /* kame */
314 #define SADB_AALG_MAX 251
315
316 /* Encryption algorithms */
317 #define SADB_EALG_NONE 0
318 #define SADB_EALG_DESCBC 2
319 #define SADB_EALG_3DESCBC 3
320 #define SADB_X_EALG_CASTCBC 6
321 #define SADB_X_EALG_BLOWFISHCBC 7
322 #define SADB_EALG_NULL 11
323 #define SADB_X_EALG_AESCBC 12
324 #define SADB_X_EALG_AESCTR 13
325 #define SADB_X_EALG_AES_CCM_ICV8 14
326 #define SADB_X_EALG_AES_CCM_ICV12 15
327 #define SADB_X_EALG_AES_CCM_ICV16 16
328 #define SADB_X_EALG_AES_GCM_ICV8 18
329 #define SADB_X_EALG_AES_GCM_ICV12 19
330 #define SADB_X_EALG_AES_GCM_ICV16 20
331 #define SADB_X_EALG_CAMELLIACBC 22
332 #define SADB_X_EALG_NULL_AES_GMAC 23
333 #define SADB_X_EALG_SM4CBC 24
334 #define SADB_EALG_MAX 253 /* last EALG */
335 /* private allocations should use 249-255 (RFC2407) */
336 #define SADB_X_EALG_SERPENTCBC 252 /* draft-ietf-ipsec-ciph-aes-cbc-00 */
337 #define SADB_X_EALG_TWOFISHCBC 253 /* draft-ietf-ipsec-ciph-aes-cbc-00 */
338
339 /* Compression algorithms */
340 #define SADB_X_CALG_NONE 0
341 #define SADB_X_CALG_OUI 1
342 #define SADB_X_CALG_DEFLATE 2
343 #define SADB_X_CALG_LZS 3
344 #define SADB_X_CALG_LZJH 4
345 #define SADB_X_CALG_MAX 4
346
347 /* Extension Header values */
348 #define SADB_EXT_RESERVED 0
349 #define SADB_EXT_SA 1
350 #define SADB_EXT_LIFETIME_CURRENT 2
351 #define SADB_EXT_LIFETIME_HARD 3
352 #define SADB_EXT_LIFETIME_SOFT 4
353 #define SADB_EXT_ADDRESS_SRC 5
354 #define SADB_EXT_ADDRESS_DST 6
355 #define SADB_EXT_ADDRESS_PROXY 7
356 #define SADB_EXT_KEY_AUTH 8
357 #define SADB_EXT_KEY_ENCRYPT 9
358 #define SADB_EXT_IDENTITY_SRC 10
359 #define SADB_EXT_IDENTITY_DST 11
360 #define SADB_EXT_SENSITIVITY 12
361 #define SADB_EXT_PROPOSAL 13
362 #define SADB_EXT_SUPPORTED_AUTH 14
363 #define SADB_EXT_SUPPORTED_ENCRYPT 15
364 #define SADB_EXT_SPIRANGE 16
365 #define SADB_X_EXT_KMPRIVATE 17
366 #define SADB_X_EXT_POLICY 18
367 #define SADB_X_EXT_SA2 19
368 /* The next four entries are for setting up NAT Traversal */
369 #define SADB_X_EXT_NAT_T_TYPE 20
370 #define SADB_X_EXT_NAT_T_SPORT 21
371 #define SADB_X_EXT_NAT_T_DPORT 22
372 #define SADB_X_EXT_NAT_T_OA 23
373 #define SADB_X_EXT_SEC_CTX 24
374 /* Used with MIGRATE to pass @ to IKE for negotiation */
375 #define SADB_X_EXT_KMADDRESS 25
376 #define SADB_X_EXT_FILTER 26
377 #define SADB_EXT_MAX 26
378
379 /* Identity Extension values */
380 #define SADB_IDENTTYPE_RESERVED 0
381 #define SADB_IDENTTYPE_PREFIX 1
382 #define SADB_IDENTTYPE_FQDN 2
383 #define SADB_IDENTTYPE_USERFQDN 3
384 #define SADB_IDENTTYPE_MAX 3
385
386 #endif /* !(_LINUX_PFKEY2_H) */
387
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