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8927 sadb_x_kmc_t's KM cookie should be 64-bits
Reviewed by: Jason King <jason.king@joyent.com>
Reviewed by: Robert Mustacchi <rm@joyent.com>
Reviewed by: Yuri Pankov <yuripv@gmx.com>
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--- old/usr/src/uts/common/inet/sadb.h
+++ new/usr/src/uts/common/inet/sadb.h
1 1 /*
2 2 * CDDL HEADER START
3 3 *
4 4 * The contents of this file are subject to the terms of the
5 5 * Common Development and Distribution License (the "License").
6 6 * You may not use this file except in compliance with the License.
7 7 *
8 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 9 * or http://www.opensolaris.org/os/licensing.
10 10 * See the License for the specific language governing permissions
11 11 * and limitations under the License.
12 12 *
13 13 * When distributing Covered Code, include this CDDL HEADER in each
14 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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15 15 * If applicable, add the following below this CDDL HEADER, with the
16 16 * fields enclosed by brackets "[]" replaced with your own identifying
17 17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 18 *
19 19 * CDDL HEADER END
20 20 */
21 21 /*
22 22 * Copyright 2010 Sun Microsystems, Inc. All rights reserved.
23 23 * Use is subject to license terms.
24 24 * Copyright (c) 2012 Nexenta Systems, Inc. All rights reserved.
25 + * Copyright 2017 Joyent, Inc.
25 26 */
26 27
27 28 #ifndef _INET_SADB_H
28 29 #define _INET_SADB_H
29 30
30 31 #ifdef __cplusplus
31 32 extern "C" {
32 33 #endif
33 34
34 35 #include <inet/ipsec_info.h>
35 36 #include <sys/crypto/common.h>
36 37 #include <sys/crypto/api.h>
37 38 #include <sys/note.h>
38 39
39 40 #define IPSA_MAX_ADDRLEN 4 /* Max address len. (in 32-bits) for an SA. */
40 41
41 42 #define MAXSALTSIZE 8
42 43
43 44 /*
44 45 * For combined mode ciphers, store the crypto_mechanism_t in the
45 46 * per-packet ipsec_in_t/ipsec_out_t structures. This is because the PARAMS
46 47 * and nonce values change for each packet. For non-combined mode
47 48 * ciphers, these values are constant for the life of the SA.
48 49 */
49 50 typedef struct ipsa_cm_mech_s {
50 51 crypto_mechanism_t combined_mech;
51 52 union {
52 53 CK_AES_CCM_PARAMS paramu_ccm;
53 54 CK_AES_GCM_PARAMS paramu_gcm;
54 55 } paramu;
55 56 uint8_t nonce[MAXSALTSIZE + sizeof (uint64_t)];
56 57 #define param_ulMACSize paramu.paramu_ccm.ulMACSize
57 58 #define param_ulNonceSize paramu.paramu_ccm.ipsa_ulNonceSize
58 59 #define param_ulAuthDataSize paramu.paramu_ccm.ipsa_ulAuthDataSize
59 60 #define param_ulDataSize paramu.paramu_ccm.ipsa_ulDataSize
60 61 #define param_nonce paramu.paramu_ccm.nonce
61 62 #define param_authData paramu.paramu_ccm.authData
62 63 #define param_pIv paramu.paramu_gcm.ipsa_pIv
63 64 #define param_ulIvLen paramu.paramu_gcm.ulIvLen
64 65 #define param_ulIvBits paramu.paramu_gcm.ulIvBits
65 66 #define param_pAAD paramu.paramu_gcm.pAAD
66 67 #define param_ulAADLen paramu.paramu_gcm.ulAADLen
67 68 #define param_ulTagBits paramu.paramu_gcm.ulTagBits
68 69 } ipsa_cm_mech_t;
69 70
70 71 /*
71 72 * The Initialization Vector (also known as IV or Nonce) used to
72 73 * initialize the Block Cipher, is made up of a Counter and a Salt.
73 74 * The Counter is fixed at 64 bits and is incremented for each packet.
74 75 * The Salt value can be any whole byte value upto 64 bits. This is
75 76 * algorithm mode specific and can be configured with ipsecalgs(1m).
76 77 *
77 78 * We only support whole byte salt lengths, this is because the salt is
78 79 * stored in an array of uint8_t's. This is enforced by ipsecalgs(1m)
79 80 * which configures the salt length as a number of bytes. Checks are
80 81 * made to ensure the salt length defined in ipsecalgs(1m) fits in
81 82 * the ipsec_nonce_t.
82 83 *
83 84 * The Salt value remains constant for the life of the SA, the Salt is
84 85 * know to both peers, but NOT transmitted on the network. The Counter
85 86 * portion of the nonce is transmitted over the network with each packet
86 87 * and is confusingly described as the Initialization Vector by RFCs
87 88 * 4309/4106.
88 89 *
89 90 * The maximum Initialization Vector length is 128 bits, if the actual
90 91 * size is less, its padded internally by the algorithm.
91 92 *
92 93 * The nonce structure is defined like this in the SA (ipsa_t)to ensure
93 94 * the Initilization Vector (counter) is 64 bit aligned, because it will
94 95 * be incremented as an uint64_t. The nonce as used by the algorithms is
95 96 * a straight uint8_t array.
96 97 *
97 98 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
98 99 * | | | | |x|x|x|x| |
99 100 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
100 101 * salt_offset <------>
101 102 * ipsa_saltlen <------->
102 103 * ipsa_nonce_buf------^
103 104 * ipsa_salt-------------~~~~~~^
104 105 * ipsa_nonce------------~~~~~~^
105 106 * ipsa_iv-----------------------------^
106 107 */
107 108 typedef struct ipsec_nonce_s {
108 109 uint8_t salt[MAXSALTSIZE];
109 110 uint64_t iv;
110 111 } ipsec_nonce_t;
111 112
112 113 /*
113 114 * IP security association. Synchronization assumes 32-bit loads, so
114 115 * the 64-bit quantities can't even be be read w/o locking it down!
115 116 */
116 117
117 118 /* keying info */
118 119 typedef struct ipsa_key_s {
119 120 uint8_t *sak_key; /* Algorithm key. */
120 121 uint_t sak_keylen; /* Algorithm key length (in bytes). */
121 122 uint_t sak_keybits; /* Algorithm key length (in bits) */
122 123 uint_t sak_algid; /* Algorithm ID number. */
123 124 } ipsa_key_t;
124 125
125 126 typedef struct ipsa_s {
126 127 struct ipsa_s *ipsa_next; /* Next in hash bucket */
127 128 struct ipsa_s **ipsa_ptpn; /* Pointer to previous next pointer. */
128 129 kmutex_t *ipsa_linklock; /* Pointer to hash-chain lock. */
129 130 void (*ipsa_freefunc)(struct ipsa_s *); /* freeassoc function */
130 131 void (*ipsa_noncefunc)(struct ipsa_s *, uchar_t *,
131 132 uint_t, uchar_t *, ipsa_cm_mech_t *, crypto_data_t *);
132 133 /*
133 134 * NOTE: I may need more pointers, depending on future SA
134 135 * requirements.
135 136 */
136 137 ipsa_key_t ipsa_authkeydata;
137 138 #define ipsa_authkey ipsa_authkeydata.sak_key
138 139 #define ipsa_authkeylen ipsa_authkeydata.sak_keylen
139 140 #define ipsa_authkeybits ipsa_authkeydata.sak_keybits
140 141 #define ipsa_auth_alg ipsa_authkeydata.sak_algid
141 142 ipsa_key_t ipsa_encrkeydata;
142 143 #define ipsa_encrkey ipsa_encrkeydata.sak_key
143 144 #define ipsa_encrkeylen ipsa_encrkeydata.sak_keylen
144 145 #define ipsa_encrkeybits ipsa_encrkeydata.sak_keybits
145 146 #define ipsa_encr_alg ipsa_encrkeydata.sak_algid
146 147
147 148 struct ipsid_s *ipsa_src_cid; /* Source certificate identity */
148 149 struct ipsid_s *ipsa_dst_cid; /* Destination certificate identity */
149 150 mblk_t *ipsa_lpkt; /* Packet received while larval (CAS me) */
150 151 mblk_t *ipsa_bpkt_head; /* Packets received while idle */
151 152 mblk_t *ipsa_bpkt_tail;
152 153 #define SADB_MAX_IDLEPKTS 100
153 154 uint8_t ipsa_mblkcnt; /* Number of packets received while idle */
154 155
155 156 /*
156 157 * PF_KEYv2 supports a replay window size of 255. Hence there is a
157 158 * need a bit vector to support a replay window of 255. 256 is a nice
158 159 * round number, so I support that.
159 160 *
160 161 * Use an array of uint64_t for best performance on 64-bit
161 162 * processors. (And hope that 32-bit compilers can handle things
162 163 * okay.) The " >> 6 " is to get the appropriate number of 64-bit
163 164 * ints.
164 165 */
165 166 #define SADB_MAX_REPLAY 256 /* Must be 0 mod 64. */
166 167 uint64_t ipsa_replay_arr[SADB_MAX_REPLAY >> 6];
167 168
168 169 uint64_t ipsa_unique_id; /* Non-zero for unique SAs */
169 170 uint64_t ipsa_unique_mask; /* mask value for unique_id */
170 171
171 172 /*
172 173 * Reference count semantics:
173 174 *
174 175 * An SA has a reference count of 1 if something's pointing
175 176 * to it. This includes being in a hash table. So if an
176 177 * SA is in a hash table, it has a reference count of at least 1.
177 178 *
178 179 * When a ptr. to an IPSA is assigned, you MUST REFHOLD after
179 180 * said assignment. When a ptr. to an IPSA is released
180 181 * you MUST REFRELE. When the refcount hits 0, REFRELE
181 182 * will free the IPSA.
182 183 */
183 184 kmutex_t ipsa_lock; /* Locks non-linkage/refcnt fields. */
184 185 /* Q: Since I may be doing refcnts differently, will I need cv? */
185 186 uint_t ipsa_refcnt; /* Reference count. */
186 187
187 188 /*
188 189 * The following four time fields are the ones monitored by ah_ager()
189 190 * and esp_ager() respectively. They are all absolute wall-clock
190 191 * times. The times of creation (i.e. add time) and first use are
191 192 * pretty straightforward. The soft and hard expire times are
192 193 * derived from the times of first use and creation, plus the minimum
193 194 * expiration times in the fields that follow this.
194 195 *
195 196 * For example, if I had a hard add time of 30 seconds, and a hard
196 197 * use time of 15, the ipsa_hardexpiretime would be time of add, plus
197 198 * 30 seconds. If I USE the SA such that time of first use plus 15
198 199 * seconds would be earlier than the add time plus 30 seconds, then
199 200 * ipsa_hardexpiretime would become this earlier time.
200 201 */
201 202 time_t ipsa_addtime; /* Time I was added. */
202 203 time_t ipsa_usetime; /* Time of my first use. */
203 204 time_t ipsa_lastuse; /* Time of my last use. */
204 205 time_t ipsa_idletime; /* Seconds of idle time */
205 206 time_t ipsa_last_nat_t_ka; /* Time of my last NAT-T keepalive. */
206 207 time_t ipsa_softexpiretime; /* Time of my first soft expire. */
207 208 time_t ipsa_hardexpiretime; /* Time of my first hard expire. */
208 209 time_t ipsa_idleexpiretime; /* Time of my next idle expire time */
209 210
210 211 struct ipsec_nonce_s *ipsa_nonce_buf;
211 212 uint8_t *ipsa_nonce;
212 213 uint_t ipsa_nonce_len;
213 214 uint8_t *ipsa_salt;
214 215 uint_t ipsa_saltbits;
215 216 uint_t ipsa_saltlen;
216 217 uint64_t *ipsa_iv;
217 218
218 219 uint64_t ipsa_iv_hardexpire;
219 220 uint64_t ipsa_iv_softexpire;
220 221 /*
221 222 * The following fields are directly reflected in PF_KEYv2 LIFETIME
222 223 * extensions. The time_ts are in number-of-seconds, and the bytes
223 224 * are in... bytes.
224 225 */
225 226 time_t ipsa_softaddlt; /* Seconds of soft lifetime after add. */
226 227 time_t ipsa_softuselt; /* Seconds of soft lifetime after first use. */
227 228 time_t ipsa_hardaddlt; /* Seconds of hard lifetime after add. */
228 229 time_t ipsa_harduselt; /* Seconds of hard lifetime after first use. */
229 230 time_t ipsa_idleaddlt; /* Seconds of idle time after add */
230 231 time_t ipsa_idleuselt; /* Seconds of idle time after first use */
231 232 uint64_t ipsa_softbyteslt; /* Bytes of soft lifetime. */
232 233 uint64_t ipsa_hardbyteslt; /* Bytes of hard lifetime. */
233 234 uint64_t ipsa_bytes; /* Bytes encrypted/authed by this SA. */
234 235
235 236 /*
236 237 * "Allocations" are a concept mentioned in PF_KEYv2. We do not
237 238 * support them, except to record them per the PF_KEYv2 spec.
238 239 */
239 240 uint_t ipsa_softalloc; /* Allocations allowed (soft). */
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240 241 uint_t ipsa_hardalloc; /* Allocations allowed (hard). */
241 242 uint_t ipsa_alloc; /* Allocations made. */
242 243
243 244 uint_t ipsa_type; /* Type of security association. (AH/etc.) */
244 245 uint_t ipsa_state; /* State of my association. */
245 246 uint_t ipsa_replay_wsize; /* Size of replay window */
246 247 uint32_t ipsa_flags; /* Flags for security association. */
247 248 uint32_t ipsa_spi; /* Security parameters index. */
248 249 uint32_t ipsa_replay; /* Highest seen replay value for this SA. */
249 250 uint32_t ipsa_kmp; /* key management proto */
250 - uint32_t ipsa_kmc; /* key management cookie */
251 + uint64_t ipsa_kmc; /* key management cookie (now 64-bit) */
251 252
252 253 boolean_t ipsa_haspeer; /* Has peer in another table. */
253 254
254 255 /*
255 256 * Address storage.
256 257 * The source address can be INADDR_ANY, IN6ADDR_ANY, etc.
257 258 *
258 259 * Address families (per sys/socket.h) guide us. We could have just
259 260 * used sockaddr_storage
260 261 */
261 262 sa_family_t ipsa_addrfam;
262 263 sa_family_t ipsa_innerfam; /* Inner AF can be != src/dst AF. */
263 264
264 265 uint32_t ipsa_srcaddr[IPSA_MAX_ADDRLEN];
265 266 uint32_t ipsa_dstaddr[IPSA_MAX_ADDRLEN];
266 267 uint32_t ipsa_innersrc[IPSA_MAX_ADDRLEN];
267 268 uint32_t ipsa_innerdst[IPSA_MAX_ADDRLEN];
268 269
269 270 uint8_t ipsa_innersrcpfx;
270 271 uint8_t ipsa_innerdstpfx;
271 272
272 273 uint16_t ipsa_inbound_cksum; /* cksum correction for inbound packets */
273 274 uint16_t ipsa_local_nat_port; /* Local NAT-T port. (0 --> 4500) */
274 275 uint16_t ipsa_remote_nat_port; /* The other port that isn't 4500 */
275 276
276 277 /* these can only be v4 */
277 278 uint32_t ipsa_natt_addr_loc;
278 279 uint32_t ipsa_natt_addr_rem;
279 280
280 281 /*
281 282 * icmp type and code. *_end are to specify ranges. if only
282 283 * a single value, * and *_end are the same value.
283 284 */
284 285 uint8_t ipsa_icmp_type;
285 286 uint8_t ipsa_icmp_type_end;
286 287 uint8_t ipsa_icmp_code;
287 288 uint8_t ipsa_icmp_code_end;
288 289
289 290 /*
290 291 * For the kernel crypto framework.
291 292 */
292 293 crypto_key_t ipsa_kcfauthkey; /* authentication key */
293 294 crypto_key_t ipsa_kcfencrkey; /* encryption key */
294 295 crypto_ctx_template_t ipsa_authtmpl; /* auth context template */
295 296 crypto_ctx_template_t ipsa_encrtmpl; /* encr context template */
296 297 crypto_mechanism_t ipsa_amech; /* auth mech type and ICV len */
297 298 crypto_mechanism_t ipsa_emech; /* encr mech type */
298 299 size_t ipsa_mac_len; /* auth MAC/ICV length */
299 300 size_t ipsa_iv_len; /* encr IV length */
300 301 size_t ipsa_datalen; /* block length in bytes. */
301 302
302 303 /*
303 304 * Input and output processing functions called from IP.
304 305 * The mblk_t is the data; the IPsec information is in the attributes
305 306 * Returns NULL if the mblk is consumed which it is if there was
306 307 * a failure or if pending. If failure then
307 308 * the ipIfInDiscards/OutDiscards counters are increased.
308 309 */
309 310 mblk_t *(*ipsa_output_func)(mblk_t *, ip_xmit_attr_t *);
310 311 mblk_t *(*ipsa_input_func)(mblk_t *, void *, ip_recv_attr_t *);
311 312
312 313 /*
313 314 * Soft reference to paired SA
314 315 */
315 316 uint32_t ipsa_otherspi;
316 317 netstack_t *ipsa_netstack; /* Does not have a netstack_hold */
317 318
318 319 ts_label_t *ipsa_tsl; /* MLS: label attributes */
319 320 ts_label_t *ipsa_otsl; /* MLS: outer label */
320 321 uint8_t ipsa_mac_exempt; /* MLS: mac exempt flag */
321 322 uchar_t ipsa_opt_storage[IP_MAX_OPT_LENGTH];
322 323 } ipsa_t;
323 324
324 325 /*
325 326 * ipsa_t address handling macros. We want these to be inlined, and deal
326 327 * with 32-bit words to avoid bcmp/bcopy calls.
327 328 *
328 329 * Assume we only have AF_INET and AF_INET6 addresses for now. Also assume
329 330 * that we have 32-bit alignment on everything.
330 331 */
331 332 #define IPSA_IS_ADDR_UNSPEC(addr, fam) ((((uint32_t *)(addr))[0] == 0) && \
332 333 (((fam) == AF_INET) || (((uint32_t *)(addr))[3] == 0 && \
333 334 ((uint32_t *)(addr))[2] == 0 && ((uint32_t *)(addr))[1] == 0)))
334 335 #define IPSA_ARE_ADDR_EQUAL(addr1, addr2, fam) \
335 336 ((((uint32_t *)(addr1))[0] == ((uint32_t *)(addr2))[0]) && \
336 337 (((fam) == AF_INET) || \
337 338 (((uint32_t *)(addr1))[3] == ((uint32_t *)(addr2))[3] && \
338 339 ((uint32_t *)(addr1))[2] == ((uint32_t *)(addr2))[2] && \
339 340 ((uint32_t *)(addr1))[1] == ((uint32_t *)(addr2))[1])))
340 341 #define IPSA_COPY_ADDR(dstaddr, srcaddr, fam) { \
341 342 ((uint32_t *)(dstaddr))[0] = ((uint32_t *)(srcaddr))[0]; \
342 343 if ((fam) == AF_INET6) {\
343 344 ((uint32_t *)(dstaddr))[1] = ((uint32_t *)(srcaddr))[1]; \
344 345 ((uint32_t *)(dstaddr))[2] = ((uint32_t *)(srcaddr))[2]; \
345 346 ((uint32_t *)(dstaddr))[3] = ((uint32_t *)(srcaddr))[3]; } }
346 347
347 348 /*
348 349 * ipsa_t reference hold/release macros.
349 350 *
350 351 * If you have a pointer, you REFHOLD. If you are releasing a pointer, you
351 352 * REFRELE. An ipsa_t that is newly inserted into the table should have
352 353 * a reference count of 1 (for the table's pointer), plus 1 more for every
353 354 * pointer that is referencing the ipsa_t.
354 355 */
355 356
356 357 #define IPSA_REFHOLD(ipsa) { \
357 358 atomic_inc_32(&(ipsa)->ipsa_refcnt); \
358 359 ASSERT((ipsa)->ipsa_refcnt != 0); \
359 360 }
360 361
361 362 /*
362 363 * Decrement the reference count on the SA.
363 364 * In architectures e.g sun4u, where atomic_add_32_nv is just
364 365 * a cas, we need to maintain the right memory barrier semantics
365 366 * as that of mutex_exit i.e all the loads and stores should complete
366 367 * before the cas is executed. membar_exit() does that here.
367 368 */
368 369
369 370 #define IPSA_REFRELE(ipsa) { \
370 371 ASSERT((ipsa)->ipsa_refcnt != 0); \
371 372 membar_exit(); \
372 373 if (atomic_dec_32_nv(&(ipsa)->ipsa_refcnt) == 0) \
373 374 ((ipsa)->ipsa_freefunc)(ipsa); \
374 375 }
375 376
376 377 /*
377 378 * Security association hash macros and definitions. For now, assume the
378 379 * IPsec model, and hash outbounds on destination address, and inbounds on
379 380 * SPI.
380 381 */
381 382
382 383 #define IPSEC_DEFAULT_HASH_SIZE 256
383 384
384 385 #define INBOUND_HASH(sadb, spi) ((spi) % ((sadb)->sdb_hashsize))
385 386 #define OUTBOUND_HASH_V4(sadb, v4addr) ((v4addr) % ((sadb)->sdb_hashsize))
386 387 #define OUTBOUND_HASH_V6(sadb, v6addr) OUTBOUND_HASH_V4((sadb), \
387 388 (*(uint32_t *)&(v6addr)) ^ (*(((uint32_t *)&(v6addr)) + 1)) ^ \
388 389 (*(((uint32_t *)&(v6addr)) + 2)) ^ (*(((uint32_t *)&(v6addr)) + 3)))
389 390
390 391 /*
391 392 * Syntactic sugar to find the appropriate hash bucket directly.
392 393 */
393 394
394 395 #define INBOUND_BUCKET(sadb, spi) &(((sadb)->sdb_if)[INBOUND_HASH(sadb, spi)])
395 396 #define OUTBOUND_BUCKET_V4(sadb, v4addr) \
396 397 &(((sadb)->sdb_of)[OUTBOUND_HASH_V4(sadb, v4addr)])
397 398 #define OUTBOUND_BUCKET_V6(sadb, v6addr) \
398 399 &(((sadb)->sdb_of)[OUTBOUND_HASH_V6(sadb, v6addr)])
399 400
400 401 #define IPSA_F_PFS SADB_SAFLAGS_PFS /* PFS in use for this SA? */
401 402 #define IPSA_F_NOREPFLD SADB_SAFLAGS_NOREPLAY /* No replay field, for */
402 403 /* backward compat. */
403 404 #define IPSA_F_USED SADB_X_SAFLAGS_USED /* SA has been used. */
404 405 #define IPSA_F_UNIQUE SADB_X_SAFLAGS_UNIQUE /* SA is unique */
405 406 #define IPSA_F_AALG1 SADB_X_SAFLAGS_AALG1 /* Auth alg flag 1 */
406 407 #define IPSA_F_AALG2 SADB_X_SAFLAGS_AALG2 /* Auth alg flag 2 */
407 408 #define IPSA_F_EALG1 SADB_X_SAFLAGS_EALG1 /* Encrypt alg flag 1 */
408 409 #define IPSA_F_EALG2 SADB_X_SAFLAGS_EALG2 /* Encrypt alg flag 2 */
409 410
410 411 #define IPSA_F_ASYNC 0x200000 /* Call KCF asynchronously? */
411 412 #define IPSA_F_NATT_LOC SADB_X_SAFLAGS_NATT_LOC
412 413 #define IPSA_F_NATT_REM SADB_X_SAFLAGS_NATT_REM
413 414 #define IPSA_F_BEHIND_NAT SADB_X_SAFLAGS_NATTED
414 415 #define IPSA_F_NATT (SADB_X_SAFLAGS_NATT_LOC | SADB_X_SAFLAGS_NATT_REM | \
415 416 SADB_X_SAFLAGS_NATTED)
416 417 #define IPSA_F_CINVALID 0x40000 /* SA shouldn't be cached */
417 418 #define IPSA_F_PAIRED SADB_X_SAFLAGS_PAIRED /* SA is one of a pair */
418 419 #define IPSA_F_OUTBOUND SADB_X_SAFLAGS_OUTBOUND /* SA direction bit */
419 420 #define IPSA_F_INBOUND SADB_X_SAFLAGS_INBOUND /* SA direction bit */
420 421 #define IPSA_F_TUNNEL SADB_X_SAFLAGS_TUNNEL
421 422 /*
422 423 * These flags are only defined here to prevent a flag value collision.
423 424 */
424 425 #define IPSA_F_COMBINED SADB_X_SAFLAGS_EALG1 /* Defined in pfkeyv2.h */
425 426 #define IPSA_F_COUNTERMODE SADB_X_SAFLAGS_EALG2 /* Defined in pfkeyv2.h */
426 427
427 428 /*
428 429 * Sets of flags that are allowed to by set or modified by PF_KEY apps.
429 430 */
430 431 #define AH_UPDATE_SETTABLE_FLAGS \
431 432 (SADB_X_SAFLAGS_PAIRED | SADB_SAFLAGS_NOREPLAY | \
432 433 SADB_X_SAFLAGS_OUTBOUND | SADB_X_SAFLAGS_INBOUND | \
433 434 SADB_X_SAFLAGS_KM1 | SADB_X_SAFLAGS_KM2 | \
434 435 SADB_X_SAFLAGS_KM3 | SADB_X_SAFLAGS_KM4)
435 436
436 437 /* AH can't set NAT flags (or even use NAT). Add NAT flags to the ESP set. */
437 438 #define ESP_UPDATE_SETTABLE_FLAGS (AH_UPDATE_SETTABLE_FLAGS | IPSA_F_NATT)
438 439
439 440 #define AH_ADD_SETTABLE_FLAGS \
440 441 (AH_UPDATE_SETTABLE_FLAGS | SADB_X_SAFLAGS_AALG1 | \
441 442 SADB_X_SAFLAGS_AALG2 | SADB_X_SAFLAGS_TUNNEL | \
442 443 SADB_SAFLAGS_NOREPLAY)
443 444
444 445 /* AH can't set NAT flags (or even use NAT). Add NAT flags to the ESP set. */
445 446 #define ESP_ADD_SETTABLE_FLAGS (AH_ADD_SETTABLE_FLAGS | IPSA_F_NATT | \
446 447 SADB_X_SAFLAGS_EALG1 | SADB_X_SAFLAGS_EALG2)
447 448
448 449
449 450
450 451 /* SA states are important for handling UPDATE PF_KEY messages. */
451 452 #define IPSA_STATE_LARVAL SADB_SASTATE_LARVAL
452 453 #define IPSA_STATE_MATURE SADB_SASTATE_MATURE
453 454 #define IPSA_STATE_DYING SADB_SASTATE_DYING
454 455 #define IPSA_STATE_DEAD SADB_SASTATE_DEAD
455 456 #define IPSA_STATE_IDLE SADB_X_SASTATE_IDLE
456 457 #define IPSA_STATE_ACTIVE_ELSEWHERE SADB_X_SASTATE_ACTIVE_ELSEWHERE
457 458
458 459 /*
459 460 * NOTE: If the document authors do things right in defining algorithms, we'll
460 461 * probably have flags for what all is here w.r.t. replay, ESP w/HMAC,
461 462 * etc.
462 463 */
463 464
464 465 #define IPSA_T_ACQUIRE SEC_TYPE_NONE /* If this typed returned, sa needed */
465 466 #define IPSA_T_AH SEC_TYPE_AH /* IPsec AH association */
466 467 #define IPSA_T_ESP SEC_TYPE_ESP /* IPsec ESP association */
467 468
468 469 #define IPSA_AALG_NONE SADB_AALG_NONE /* No auth. algorithm */
469 470 #define IPSA_AALG_MD5H SADB_AALG_MD5HMAC /* MD5-HMAC algorithm */
470 471 #define IPSA_AALG_SHA1H SADB_AALG_SHA1HMAC /* SHA1-HMAC algorithm */
471 472
472 473 #define IPSA_EALG_NONE SADB_EALG_NONE /* No encryption algorithm */
473 474 #define IPSA_EALG_DES_CBC SADB_EALG_DESCBC
474 475 #define IPSA_EALG_3DES SADB_EALG_3DESCBC
475 476
476 477 /*
477 478 * Protect each ipsa_t bucket (and linkage) with a lock.
478 479 */
479 480
480 481 typedef struct isaf_s {
481 482 ipsa_t *isaf_ipsa;
482 483 kmutex_t isaf_lock;
483 484 uint64_t isaf_gen;
484 485 } isaf_t;
485 486
486 487 /*
487 488 * ACQUIRE record. If AH/ESP/whatever cannot find an association for outbound
488 489 * traffic, it sends up an SADB_ACQUIRE message and create an ACQUIRE record.
489 490 */
490 491
491 492 #define IPSACQ_MAXPACKETS 4 /* Number of packets that can be queued up */
492 493 /* waiting for an ACQUIRE to finish. */
493 494
494 495 typedef struct ipsacq_s {
495 496 struct ipsacq_s *ipsacq_next;
496 497 struct ipsacq_s **ipsacq_ptpn;
497 498 kmutex_t *ipsacq_linklock;
498 499 struct ipsec_policy_s *ipsacq_policy;
499 500 struct ipsec_action_s *ipsacq_act;
500 501
501 502 sa_family_t ipsacq_addrfam; /* Address family. */
502 503 sa_family_t ipsacq_inneraddrfam; /* Inner-packet address family. */
503 504 int ipsacq_numpackets; /* How many packets queued up so far. */
504 505 uint32_t ipsacq_seq; /* PF_KEY sequence number. */
505 506 uint64_t ipsacq_unique_id; /* Unique ID for SAs that need it. */
506 507
507 508 kmutex_t ipsacq_lock; /* Protects non-linkage fields. */
508 509 time_t ipsacq_expire; /* Wall-clock time when this record expires. */
509 510 mblk_t *ipsacq_mp; /* List of datagrams waiting for an SA. */
510 511
511 512 /* These two point inside the last mblk inserted. */
512 513 uint32_t *ipsacq_srcaddr;
513 514 uint32_t *ipsacq_dstaddr;
514 515
515 516 /* Cache these instead of point so we can mask off accordingly */
516 517 uint32_t ipsacq_innersrc[IPSA_MAX_ADDRLEN];
517 518 uint32_t ipsacq_innerdst[IPSA_MAX_ADDRLEN];
518 519
519 520 /* These may change per-acquire. */
520 521 uint16_t ipsacq_srcport;
521 522 uint16_t ipsacq_dstport;
522 523 uint8_t ipsacq_proto;
523 524 uint8_t ipsacq_inner_proto;
524 525 uint8_t ipsacq_innersrcpfx;
525 526 uint8_t ipsacq_innerdstpfx;
526 527
527 528 /* icmp type and code of triggering packet (if applicable) */
528 529 uint8_t ipsacq_icmp_type;
529 530 uint8_t ipsacq_icmp_code;
530 531
531 532 /* label associated with triggering packet */
532 533 ts_label_t *ipsacq_tsl;
533 534 } ipsacq_t;
534 535
535 536 /*
536 537 * Kernel-generated sequence numbers will be no less than 0x80000000 to
537 538 * forestall any cretinous problems with manual keying accidentally updating
538 539 * an ACQUIRE entry.
539 540 */
540 541 #define IACQF_LOWEST_SEQ 0x80000000
541 542
542 543 #define SADB_AGE_INTERVAL_DEFAULT 8000
543 544
544 545 /*
545 546 * ACQUIRE fanout. Protect each linkage with a lock.
546 547 */
547 548
548 549 typedef struct iacqf_s {
549 550 ipsacq_t *iacqf_ipsacq;
550 551 kmutex_t iacqf_lock;
551 552 } iacqf_t;
552 553
553 554 /*
554 555 * A (network protocol, ipsec protocol) specific SADB.
555 556 * (i.e., one each for {ah, esp} and {v4, v6}.
556 557 *
557 558 * Keep outbound assocs in a simple hash table for now.
558 559 * One danger point, multiple SAs for a single dest will clog a bucket.
559 560 * For the future, consider two-level hashing (2nd hash on IPC?), then probe.
560 561 */
561 562
562 563 typedef struct sadb_s
563 564 {
564 565 isaf_t *sdb_of;
565 566 isaf_t *sdb_if;
566 567 iacqf_t *sdb_acq;
567 568 int sdb_hashsize;
568 569 } sadb_t;
569 570
570 571 /*
571 572 * A pair of SADB's (one for v4, one for v6), and related state.
572 573 */
573 574
574 575 typedef struct sadbp_s
575 576 {
576 577 uint32_t s_satype;
577 578 uint32_t *s_acquire_timeout;
578 579 sadb_t s_v4;
579 580 sadb_t s_v6;
580 581 uint32_t s_addflags;
581 582 uint32_t s_updateflags;
582 583 } sadbp_t;
583 584
584 585 /*
585 586 * A pair of SA's for a single connection, the structure contains a
586 587 * pointer to a SA and the SA its paired with (opposite direction) as well
587 588 * as the SA's respective hash buckets.
588 589 */
589 590 typedef struct ipsap_s
590 591 {
591 592 boolean_t in_inbound_table;
592 593 isaf_t *ipsap_bucket;
593 594 ipsa_t *ipsap_sa_ptr;
594 595 isaf_t *ipsap_pbucket;
595 596 ipsa_t *ipsap_psa_ptr;
596 597 } ipsap_t;
597 598
598 599 typedef struct templist_s
599 600 {
600 601 ipsa_t *ipsa;
601 602 struct templist_s *next;
602 603 } templist_t;
603 604
604 605 /* Pointer to an all-zeroes IPv6 address. */
605 606 #define ALL_ZEROES_PTR ((uint32_t *)&ipv6_all_zeros)
606 607
607 608 /*
608 609 * Form unique id from ip_xmit_attr_t.
609 610 */
610 611 #define SA_FORM_UNIQUE_ID(ixa) \
611 612 SA_UNIQUE_ID((ixa)->ixa_ipsec_src_port, (ixa)->ixa_ipsec_dst_port, \
612 613 (((ixa)->ixa_flags & IXAF_IPSEC_TUNNEL) ? \
613 614 ((ixa)->ixa_ipsec_inaf == AF_INET6 ? \
614 615 IPPROTO_IPV6 : IPPROTO_ENCAP) : \
615 616 (ixa)->ixa_ipsec_proto), \
616 617 (((ixa)->ixa_flags & IXAF_IPSEC_TUNNEL) ? \
617 618 (ixa)->ixa_ipsec_proto : 0))
618 619
619 620 /*
620 621 * This macro is used to generate unique ids (along with the addresses, both
621 622 * inner and outer) for outbound datagrams that require unique SAs.
622 623 *
623 624 * N.B. casts and unsigned shift amounts discourage unwarranted
624 625 * sign extension of dstport, proto, and iproto.
625 626 *
626 627 * Unique ID is 64-bits allocated as follows (pardon my big-endian bias):
627 628 *
628 629 * 6 4 43 33 11
629 630 * 3 7 09 21 65 0
630 631 * +---------------*-------+-------+--------------+---------------+
631 632 * | MUST-BE-ZERO |<iprot>|<proto>| <src port> | <dest port> |
632 633 * +---------------*-------+-------+--------------+---------------+
633 634 *
634 635 * If there are inner addresses (tunnel mode) the ports come from the
635 636 * inner addresses. If there are no inner addresses, the ports come from
636 637 * the outer addresses (transport mode). Tunnel mode MUST have <proto>
637 638 * set to either IPPROTO_ENCAP or IPPPROTO_IPV6.
638 639 */
639 640 #define SA_UNIQUE_ID(srcport, dstport, proto, iproto) \
640 641 ((srcport) | ((uint64_t)(dstport) << 16U) | \
641 642 ((uint64_t)(proto) << 32U) | ((uint64_t)(iproto) << 40U))
642 643
643 644 /*
644 645 * SA_UNIQUE_MASK generates a mask value to use when comparing the unique value
645 646 * from a packet to an SA.
646 647 */
647 648
648 649 #define SA_UNIQUE_MASK(srcport, dstport, proto, iproto) \
649 650 SA_UNIQUE_ID((srcport != 0) ? 0xffff : 0, \
650 651 (dstport != 0) ? 0xffff : 0, \
651 652 (proto != 0) ? 0xff : 0, \
652 653 (iproto != 0) ? 0xff : 0)
653 654
654 655 /*
655 656 * Decompose unique id back into its original fields.
656 657 */
657 658 #define SA_IPROTO(ipsa) ((ipsa)->ipsa_unique_id>>40)&0xff
658 659 #define SA_PROTO(ipsa) ((ipsa)->ipsa_unique_id>>32)&0xff
659 660 #define SA_SRCPORT(ipsa) ((ipsa)->ipsa_unique_id & 0xffff)
660 661 #define SA_DSTPORT(ipsa) (((ipsa)->ipsa_unique_id >> 16) & 0xffff)
661 662
662 663 typedef struct ipsa_query_s ipsa_query_t;
663 664
664 665 typedef boolean_t (*ipsa_match_fn_t)(ipsa_query_t *, ipsa_t *);
665 666
666 667 #define IPSA_NMATCH 10
667 668
668 669 /*
669 670 * SADB query structure.
670 671 *
671 672 * Provide a generalized mechanism for matching entries in the SADB;
672 673 * one of these structures is initialized using sadb_form_query(),
673 674 * and then can be used as a parameter to sadb_match_query() which returns
674 675 * B_TRUE if the SA matches the query.
675 676 *
676 677 * Under the covers, sadb_form_query populates the matchers[] array with
677 678 * functions which are called one at a time until one fails to match.
678 679 */
679 680 struct ipsa_query_s {
680 681 uint32_t req, match;
681 682 sadb_address_t *srcext, *dstext;
682 683 sadb_ident_t *srcid, *dstid;
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683 684 sadb_x_kmc_t *kmcext;
684 685 sadb_sa_t *assoc;
685 686 uint32_t spi;
686 687 struct sockaddr_in *src;
687 688 struct sockaddr_in6 *src6;
688 689 struct sockaddr_in *dst;
689 690 struct sockaddr_in6 *dst6;
690 691 sa_family_t af;
691 692 uint32_t *srcaddr, *dstaddr;
692 693 uint32_t ifindex;
693 - uint32_t kmc, kmp;
694 + uint32_t kmp;
695 + uint64_t kmc;
694 696 char *didstr, *sidstr;
695 697 uint16_t didtype, sidtype;
696 698 sadbp_t *spp;
697 699 sadb_t *sp;
698 700 isaf_t *inbound, *outbound;
699 701 uint32_t outhash;
700 702 uint32_t inhash;
701 703 ipsa_match_fn_t matchers[IPSA_NMATCH];
702 704 };
703 705
704 706 #define IPSA_Q_SA 0x00000001
705 707 #define IPSA_Q_DST 0x00000002
706 708 #define IPSA_Q_SRC 0x00000004
707 709 #define IPSA_Q_DSTID 0x00000008
708 710 #define IPSA_Q_SRCID 0x00000010
709 711 #define IPSA_Q_KMC 0x00000020
710 712 #define IPSA_Q_INBOUND 0x00000040 /* fill in inbound isaf_t */
711 713 #define IPSA_Q_OUTBOUND 0x00000080 /* fill in outbound isaf_t */
712 714
713 715 int sadb_form_query(keysock_in_t *, uint32_t, uint32_t, ipsa_query_t *, int *);
714 716 boolean_t sadb_match_query(ipsa_query_t *q, ipsa_t *sa);
715 717
716 718
717 719 /*
718 720 * All functions that return an ipsa_t will return it with IPSA_REFHOLD()
719 721 * already called.
720 722 */
721 723
722 724 /* SA retrieval (inbound and outbound) */
723 725 ipsa_t *ipsec_getassocbyspi(isaf_t *, uint32_t, uint32_t *, uint32_t *,
724 726 sa_family_t);
725 727 ipsa_t *ipsec_getassocbyconn(isaf_t *, ip_xmit_attr_t *, uint32_t *, uint32_t *,
726 728 sa_family_t, uint8_t, ts_label_t *);
727 729
728 730 /* SA insertion. */
729 731 int sadb_insertassoc(ipsa_t *, isaf_t *);
730 732
731 733 /* SA table construction and destruction. */
732 734 void sadbp_init(const char *name, sadbp_t *, int, int, netstack_t *);
733 735 void sadbp_flush(sadbp_t *, netstack_t *);
734 736 void sadbp_destroy(sadbp_t *, netstack_t *);
735 737
736 738 /* SA insertion and deletion. */
737 739 int sadb_insertassoc(ipsa_t *, isaf_t *);
738 740 void sadb_unlinkassoc(ipsa_t *);
739 741
740 742 /* Support routines to interface a keysock consumer to PF_KEY. */
741 743 mblk_t *sadb_keysock_out(minor_t);
742 744 int sadb_hardsoftchk(sadb_lifetime_t *, sadb_lifetime_t *, sadb_lifetime_t *);
743 745 int sadb_labelchk(struct keysock_in_s *);
744 746 void sadb_pfkey_echo(queue_t *, mblk_t *, sadb_msg_t *, struct keysock_in_s *,
745 747 ipsa_t *);
746 748 void sadb_pfkey_error(queue_t *, mblk_t *, int, int, uint_t);
747 749 void sadb_keysock_hello(queue_t **, queue_t *, mblk_t *, void (*)(void *),
748 750 void *, timeout_id_t *, int);
749 751 int sadb_addrcheck(queue_t *, mblk_t *, sadb_ext_t *, uint_t, netstack_t *);
750 752 boolean_t sadb_addrfix(keysock_in_t *, queue_t *, mblk_t *, netstack_t *);
751 753 int sadb_addrset(ire_t *);
752 754 int sadb_delget_sa(mblk_t *, keysock_in_t *, sadbp_t *, int *, queue_t *,
753 755 uint8_t);
754 756
755 757 int sadb_purge_sa(mblk_t *, keysock_in_t *, sadb_t *, int *, queue_t *);
756 758 int sadb_common_add(queue_t *, mblk_t *, sadb_msg_t *,
757 759 keysock_in_t *, isaf_t *, isaf_t *, ipsa_t *, boolean_t, boolean_t, int *,
758 760 netstack_t *, sadbp_t *);
759 761 void sadb_set_usetime(ipsa_t *);
760 762 boolean_t sadb_age_bytes(queue_t *, ipsa_t *, uint64_t, boolean_t);
761 763 int sadb_update_sa(mblk_t *, keysock_in_t *, mblk_t **, sadbp_t *,
762 764 int *, queue_t *, int (*)(mblk_t *, keysock_in_t *, int *, netstack_t *),
763 765 netstack_t *, uint8_t);
764 766 void sadb_acquire(mblk_t *, ip_xmit_attr_t *, boolean_t, boolean_t);
765 767 void gcm_params_init(ipsa_t *, uchar_t *, uint_t, uchar_t *, ipsa_cm_mech_t *,
766 768 crypto_data_t *);
767 769 void ccm_params_init(ipsa_t *, uchar_t *, uint_t, uchar_t *, ipsa_cm_mech_t *,
768 770 crypto_data_t *);
769 771 void cbc_params_init(ipsa_t *, uchar_t *, uint_t, uchar_t *, ipsa_cm_mech_t *,
770 772 crypto_data_t *);
771 773
772 774 void sadb_destroy_acquire(ipsacq_t *, netstack_t *);
773 775 struct ipsec_stack;
774 776 ipsa_t *sadb_getspi(keysock_in_t *, uint32_t, int *, netstack_t *, uint_t);
775 777 void sadb_in_acquire(sadb_msg_t *, sadbp_t *, queue_t *, netstack_t *);
776 778 boolean_t sadb_replay_check(ipsa_t *, uint32_t);
777 779 boolean_t sadb_replay_peek(ipsa_t *, uint32_t);
778 780 int sadb_dump(queue_t *, mblk_t *, keysock_in_t *, sadb_t *);
779 781 void sadb_replay_delete(ipsa_t *);
780 782 void sadb_ager(sadb_t *, queue_t *, int, netstack_t *);
781 783
782 784 timeout_id_t sadb_retimeout(hrtime_t, queue_t *, void (*)(void *), void *,
783 785 uint_t *, uint_t, short);
784 786 void sadb_sa_refrele(void *target);
785 787 mblk_t *sadb_set_lpkt(ipsa_t *, mblk_t *, ip_recv_attr_t *);
786 788 mblk_t *sadb_clear_lpkt(ipsa_t *);
787 789 void sadb_buf_pkt(ipsa_t *, mblk_t *, ip_recv_attr_t *);
788 790 void sadb_clear_buf_pkt(void *ipkt);
789 791
790 792 /* Note that buf_pkt is the product of ip_recv_attr_to_mblk() */
791 793 #define HANDLE_BUF_PKT(taskq, stack, dropper, buf_pkt) \
792 794 { \
793 795 if (buf_pkt != NULL) { \
794 796 if (taskq_dispatch(taskq, sadb_clear_buf_pkt, \
795 797 (void *) buf_pkt, TQ_NOSLEEP) == 0) { \
796 798 /* Dispatch was unsuccessful drop the packets. */ \
797 799 mblk_t *tmp; \
798 800 while (buf_pkt != NULL) { \
799 801 tmp = buf_pkt->b_next; \
800 802 buf_pkt->b_next = NULL; \
801 803 buf_pkt = ip_recv_attr_free_mblk(buf_pkt); \
802 804 ip_drop_packet(buf_pkt, B_TRUE, NULL, \
803 805 DROPPER(stack, \
804 806 ipds_sadb_inidle_timeout), \
805 807 &dropper); \
806 808 buf_pkt = tmp; \
807 809 } \
808 810 } \
809 811 } \
810 812 } \
811 813
812 814 /*
813 815 * Two IPsec rate-limiting routines.
814 816 */
815 817 /*PRINTFLIKE6*/
816 818 extern void ipsec_rl_strlog(netstack_t *, short, short, char,
817 819 ushort_t, char *, ...)
818 820 __KPRINTFLIKE(6);
819 821 extern void ipsec_assocfailure(short, short, char, ushort_t, char *, uint32_t,
820 822 void *, int, netstack_t *);
821 823
822 824 /*
823 825 * Algorithm types.
824 826 */
825 827
826 828 #define IPSEC_NALGTYPES 2
827 829
828 830 typedef enum ipsec_algtype {
829 831 IPSEC_ALG_AUTH = 0,
830 832 IPSEC_ALG_ENCR = 1,
831 833 IPSEC_ALG_ALL = 2
832 834 } ipsec_algtype_t;
833 835
834 836 /*
835 837 * Definitions as per IPsec/ISAKMP DOI.
836 838 */
837 839
838 840 #define IPSEC_MAX_ALGS 256
839 841 #define PROTO_IPSEC_AH 2
840 842 #define PROTO_IPSEC_ESP 3
841 843
842 844 /*
843 845 * Common algorithm info.
844 846 */
845 847 typedef struct ipsec_alginfo
846 848 {
847 849 uint8_t alg_id;
848 850 uint8_t alg_flags;
849 851 uint16_t *alg_key_sizes;
850 852 uint16_t *alg_block_sizes;
851 853 uint16_t *alg_params;
852 854 uint16_t alg_nkey_sizes;
853 855 uint16_t alg_ivlen;
854 856 uint16_t alg_icvlen;
855 857 uint8_t alg_saltlen;
856 858 uint16_t alg_nblock_sizes;
857 859 uint16_t alg_nparams;
858 860 uint16_t alg_minbits;
859 861 uint16_t alg_maxbits;
860 862 uint16_t alg_datalen;
861 863 /*
862 864 * increment: number of bits from keysize to keysize
863 865 * default: # of increments from min to default key len
864 866 */
865 867 uint16_t alg_increment;
866 868 uint16_t alg_default;
867 869 uint16_t alg_default_bits;
868 870 /*
869 871 * Min, max, and default key sizes effectively supported
870 872 * by the encryption framework.
871 873 */
872 874 uint16_t alg_ef_minbits;
873 875 uint16_t alg_ef_maxbits;
874 876 uint16_t alg_ef_default;
875 877 uint16_t alg_ef_default_bits;
876 878
877 879 crypto_mech_type_t alg_mech_type; /* KCF mechanism type */
878 880 crypto_mech_name_t alg_mech_name; /* KCF mechanism name */
879 881 } ipsec_alginfo_t;
880 882
881 883 #define alg_datalen alg_block_sizes[0]
882 884 #define ALG_VALID(_alg) ((_alg)->alg_flags & ALG_FLAG_VALID)
883 885
884 886 /*
885 887 * Software crypto execution mode.
886 888 */
887 889 typedef enum {
888 890 IPSEC_ALGS_EXEC_SYNC = 0,
889 891 IPSEC_ALGS_EXEC_ASYNC = 1
890 892 } ipsec_algs_exec_mode_t;
891 893
892 894 extern void ipsec_alg_reg(ipsec_algtype_t, ipsec_alginfo_t *, netstack_t *);
893 895 extern void ipsec_alg_unreg(ipsec_algtype_t, uint8_t, netstack_t *);
894 896 extern void ipsec_alg_fix_min_max(ipsec_alginfo_t *, ipsec_algtype_t,
895 897 netstack_t *ns);
896 898 extern void alg_flag_check(ipsec_alginfo_t *);
897 899 extern void ipsec_alg_free(ipsec_alginfo_t *);
898 900 extern void ipsec_register_prov_update(void);
899 901 extern void sadb_alg_update(ipsec_algtype_t, uint8_t, boolean_t, netstack_t *);
900 902
901 903 extern int sadb_sens_len_from_label(ts_label_t *);
902 904 extern void sadb_sens_from_label(sadb_sens_t *, int, ts_label_t *, int);
903 905
904 906 /*
905 907 * Context templates management.
906 908 */
907 909
908 910 #define IPSEC_CTX_TMPL_ALLOC ((crypto_ctx_template_t)-1)
909 911 #define IPSEC_CTX_TMPL(_sa, _which, _type, _tmpl) { \
910 912 if ((_tmpl = (_sa)->_which) == IPSEC_CTX_TMPL_ALLOC) { \
911 913 mutex_enter(&assoc->ipsa_lock); \
912 914 if ((_sa)->_which == IPSEC_CTX_TMPL_ALLOC) { \
913 915 ipsec_stack_t *ipss; \
914 916 \
915 917 ipss = assoc->ipsa_netstack->netstack_ipsec; \
916 918 rw_enter(&ipss->ipsec_alg_lock, RW_READER); \
917 919 (void) ipsec_create_ctx_tmpl(_sa, _type); \
918 920 rw_exit(&ipss->ipsec_alg_lock); \
919 921 } \
920 922 mutex_exit(&assoc->ipsa_lock); \
921 923 if ((_tmpl = (_sa)->_which) == IPSEC_CTX_TMPL_ALLOC) \
922 924 _tmpl = NULL; \
923 925 } \
924 926 }
925 927
926 928 extern int ipsec_create_ctx_tmpl(ipsa_t *, ipsec_algtype_t);
927 929 extern void ipsec_destroy_ctx_tmpl(ipsa_t *, ipsec_algtype_t);
928 930
929 931 /* key checking */
930 932 extern int ipsec_check_key(crypto_mech_type_t, sadb_key_t *, boolean_t, int *);
931 933
932 934 typedef struct ipsec_kstats_s {
933 935 kstat_named_t esp_stat_in_requests;
934 936 kstat_named_t esp_stat_in_discards;
935 937 kstat_named_t esp_stat_lookup_failure;
936 938 kstat_named_t ah_stat_in_requests;
937 939 kstat_named_t ah_stat_in_discards;
938 940 kstat_named_t ah_stat_lookup_failure;
939 941 kstat_named_t sadb_acquire_maxpackets;
940 942 kstat_named_t sadb_acquire_qhiwater;
941 943 } ipsec_kstats_t;
942 944
943 945 /*
944 946 * (ipss)->ipsec_kstats is equal to (ipss)->ipsec_ksp->ks_data if
945 947 * kstat_create_netstack for (ipss)->ipsec_ksp succeeds, but when it
946 948 * fails, it will be NULL. Note this is done for all stack instances,
947 949 * so it *could* fail. hence a non-NULL checking is done for
948 950 * IP_ESP_BUMP_STAT, IP_AH_BUMP_STAT and IP_ACQUIRE_STAT
949 951 */
950 952 #define IP_ESP_BUMP_STAT(ipss, x) \
951 953 do { \
952 954 if ((ipss)->ipsec_kstats != NULL) \
953 955 ((ipss)->ipsec_kstats->esp_stat_ ## x).value.ui64++; \
954 956 _NOTE(CONSTCOND) \
955 957 } while (0)
956 958
957 959 #define IP_AH_BUMP_STAT(ipss, x) \
958 960 do { \
959 961 if ((ipss)->ipsec_kstats != NULL) \
960 962 ((ipss)->ipsec_kstats->ah_stat_ ## x).value.ui64++; \
961 963 _NOTE(CONSTCOND) \
962 964 } while (0)
963 965
964 966 #define IP_ACQUIRE_STAT(ipss, val, new) \
965 967 do { \
966 968 if ((ipss)->ipsec_kstats != NULL && \
967 969 ((uint64_t)(new)) > \
968 970 ((ipss)->ipsec_kstats->sadb_acquire_ ## val).value.ui64) \
969 971 ((ipss)->ipsec_kstats->sadb_acquire_ ## val).value.ui64 = \
970 972 ((uint64_t)(new)); \
971 973 _NOTE(CONSTCOND) \
972 974 } while (0)
973 975
974 976
975 977 #ifdef __cplusplus
976 978 }
977 979 #endif
978 980
979 981 #endif /* _INET_SADB_H */
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