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--- old/usr/src/uts/common/inet/ip.h
+++ new/usr/src/uts/common/inet/ip.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.
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 /*
23 23 * Copyright (c) 1990 Mentat Inc.
24 24 * Copyright (c) 1991, 2010, Oracle and/or its affiliates. All rights reserved.
25 25 * Copyright 2017 Nexenta Systems, Inc.
26 26 * Copyright 2017 OmniTI Computer Consulting, Inc. All rights reserved.
27 27 * Copyright 2019, Joyent, Inc.
28 28 */
29 29
30 30 #ifndef _INET_IP_H
31 31 #define _INET_IP_H
32 32
33 33 #ifdef __cplusplus
34 34 extern "C" {
35 35 #endif
36 36
37 37 #include <sys/isa_defs.h>
38 38 #include <sys/types.h>
39 39 #include <inet/mib2.h>
40 40 #include <inet/nd.h>
41 41 #include <sys/atomic.h>
42 42 #include <net/if_dl.h>
43 43 #include <net/if.h>
44 44 #include <netinet/ip.h>
45 45 #include <netinet/igmp.h>
46 46 #include <sys/neti.h>
47 47 #include <sys/hook.h>
48 48 #include <sys/hook_event.h>
49 49 #include <sys/hook_impl.h>
50 50 #include <inet/ip_stack.h>
51 51
52 52 #ifdef _KERNEL
53 53 #include <netinet/ip6.h>
54 54 #include <sys/avl.h>
55 55 #include <sys/list.h>
56 56 #include <sys/vmem.h>
57 57 #include <sys/squeue.h>
58 58 #include <net/route.h>
59 59 #include <sys/systm.h>
60 60 #include <net/radix.h>
61 61 #include <sys/modhash.h>
62 62
63 63 #ifdef DEBUG
64 64 #define CONN_DEBUG
65 65 #endif
66 66
67 67 #define IP_DEBUG
68 68 /*
69 69 * The mt-streams(9F) flags for the IP module; put here so that other
70 70 * "drivers" that are actually IP (e.g., ICMP, UDP) can use the same set
71 71 * of flags.
72 72 */
73 73 #define IP_DEVMTFLAGS D_MP
74 74 #endif /* _KERNEL */
75 75
76 76 #define IP_MOD_NAME "ip"
77 77 #define IP_DEV_NAME "/dev/ip"
78 78 #define IP6_DEV_NAME "/dev/ip6"
79 79
80 80 #define UDP_MOD_NAME "udp"
81 81 #define UDP_DEV_NAME "/dev/udp"
82 82 #define UDP6_DEV_NAME "/dev/udp6"
83 83
84 84 #define TCP_MOD_NAME "tcp"
85 85 #define TCP_DEV_NAME "/dev/tcp"
86 86 #define TCP6_DEV_NAME "/dev/tcp6"
87 87
88 88 #define SCTP_MOD_NAME "sctp"
89 89
90 90 #ifndef _IPADDR_T
91 91 #define _IPADDR_T
92 92 typedef uint32_t ipaddr_t;
93 93 #endif
94 94
95 95 /* Number of bits in an address */
96 96 #define IP_ABITS 32
97 97 #define IPV4_ABITS IP_ABITS
98 98 #define IPV6_ABITS 128
99 99 #define IP_MAX_HW_LEN 40
100 100
101 101 #define IP_HOST_MASK (ipaddr_t)0xffffffffU
102 102
103 103 #define IP_CSUM(mp, off, sum) (~ip_cksum(mp, off, sum) & 0xFFFF)
104 104 #define IP_CSUM_PARTIAL(mp, off, sum) ip_cksum(mp, off, sum)
105 105 #define IP_BCSUM_PARTIAL(bp, len, sum) bcksum(bp, len, sum)
106 106
107 107 #define ILL_FRAG_HASH_TBL_COUNT ((unsigned int)64)
108 108 #define ILL_FRAG_HASH_TBL_SIZE (ILL_FRAG_HASH_TBL_COUNT * sizeof (ipfb_t))
109 109
110 110 #define IPV4_ADDR_LEN 4
111 111 #define IP_ADDR_LEN IPV4_ADDR_LEN
112 112 #define IP_ARP_PROTO_TYPE 0x0800
113 113
114 114 #define IPV4_VERSION 4
115 115 #define IP_VERSION IPV4_VERSION
116 116 #define IP_SIMPLE_HDR_LENGTH_IN_WORDS 5
117 117 #define IP_SIMPLE_HDR_LENGTH 20
118 118 #define IP_MAX_HDR_LENGTH 60
119 119
120 120 #define IP_MAX_OPT_LENGTH (IP_MAX_HDR_LENGTH-IP_SIMPLE_HDR_LENGTH)
121 121
122 122 #define IP_MIN_MTU (IP_MAX_HDR_LENGTH + 8) /* 68 bytes */
123 123
124 124 /*
125 125 * XXX IP_MAXPACKET is defined in <netinet/ip.h> as well. At some point the
126 126 * 2 files should be cleaned up to remove all redundant definitions.
127 127 */
128 128 #define IP_MAXPACKET 65535
129 129 #define IP_SIMPLE_HDR_VERSION \
130 130 ((IP_VERSION << 4) | IP_SIMPLE_HDR_LENGTH_IN_WORDS)
131 131
132 132 #define UDPH_SIZE 8
133 133
134 134 /*
135 135 * Constants and type definitions to support IP IOCTL commands
136 136 */
137 137 #define IP_IOCTL (('i'<<8)|'p')
138 138 #define IP_IOC_IRE_DELETE 4
139 139 #define IP_IOC_IRE_DELETE_NO_REPLY 5
140 140 #define IP_IOC_RTS_REQUEST 7
141 141
142 142 /* Common definitions used by IP IOCTL data structures */
143 143 typedef struct ipllcmd_s {
144 144 uint_t ipllc_cmd;
145 145 uint_t ipllc_name_offset;
146 146 uint_t ipllc_name_length;
147 147 } ipllc_t;
148 148
149 149 /* IP IRE Delete Command Structure. */
150 150 typedef struct ipid_s {
151 151 ipllc_t ipid_ipllc;
152 152 uint_t ipid_ire_type;
153 153 uint_t ipid_addr_offset;
154 154 uint_t ipid_addr_length;
155 155 uint_t ipid_mask_offset;
156 156 uint_t ipid_mask_length;
157 157 } ipid_t;
158 158
159 159 #define ipid_cmd ipid_ipllc.ipllc_cmd
160 160
161 161 #ifdef _KERNEL
162 162 /*
163 163 * Temporary state for ip options parser.
164 164 */
165 165 typedef struct ipoptp_s
166 166 {
167 167 uint8_t *ipoptp_next; /* next option to look at */
168 168 uint8_t *ipoptp_end; /* end of options */
169 169 uint8_t *ipoptp_cur; /* start of current option */
170 170 uint8_t ipoptp_len; /* length of current option */
171 171 uint32_t ipoptp_flags;
172 172 } ipoptp_t;
173 173
174 174 /*
175 175 * Flag(s) for ipoptp_flags
176 176 */
177 177 #define IPOPTP_ERROR 0x00000001
178 178 #endif /* _KERNEL */
179 179
180 180 /* Controls forwarding of IP packets, set via ipadm(1M)/ndd(1M) */
181 181 #define IP_FORWARD_NEVER 0
182 182 #define IP_FORWARD_ALWAYS 1
183 183
184 184 #define WE_ARE_FORWARDING(ipst) ((ipst)->ips_ip_forwarding == IP_FORWARD_ALWAYS)
185 185
186 186 #define IPH_HDR_LENGTH(ipha) \
187 187 ((int)(((ipha_t *)ipha)->ipha_version_and_hdr_length & 0xF) << 2)
188 188
189 189 #define IPH_HDR_VERSION(ipha) \
190 190 ((int)(((ipha_t *)ipha)->ipha_version_and_hdr_length) >> 4)
191 191
192 192 #ifdef _KERNEL
193 193 /*
194 194 * IP reassembly macros. We hide starting and ending offsets in b_next and
195 195 * b_prev of messages on the reassembly queue. The messages are chained using
196 196 * b_cont. These macros are used in ip_reassemble() so we don't have to see
197 197 * the ugly casts and assignments.
198 198 * Note that the offsets are <= 64k i.e. a uint_t is sufficient to represent
199 199 * them.
200 200 */
201 201 #define IP_REASS_START(mp) ((uint_t)(uintptr_t)((mp)->b_next))
202 202 #define IP_REASS_SET_START(mp, u) \
203 203 ((mp)->b_next = (mblk_t *)(uintptr_t)(u))
204 204 #define IP_REASS_END(mp) ((uint_t)(uintptr_t)((mp)->b_prev))
205 205 #define IP_REASS_SET_END(mp, u) \
206 206 ((mp)->b_prev = (mblk_t *)(uintptr_t)(u))
207 207
208 208 #define IP_REASS_COMPLETE 0x1
209 209 #define IP_REASS_PARTIAL 0x2
210 210 #define IP_REASS_FAILED 0x4
211 211
212 212 /*
213 213 * Test to determine whether this is a module instance of IP or a
214 214 * driver instance of IP.
215 215 */
216 216 #define CONN_Q(q) (WR(q)->q_next == NULL)
217 217
218 218 #define Q_TO_CONN(q) ((conn_t *)(q)->q_ptr)
219 219 #define Q_TO_TCP(q) (Q_TO_CONN((q))->conn_tcp)
220 220 #define Q_TO_UDP(q) (Q_TO_CONN((q))->conn_udp)
221 221 #define Q_TO_ICMP(q) (Q_TO_CONN((q))->conn_icmp)
222 222 #define Q_TO_RTS(q) (Q_TO_CONN((q))->conn_rts)
223 223
224 224 #define CONNP_TO_WQ(connp) ((connp)->conn_wq)
225 225 #define CONNP_TO_RQ(connp) ((connp)->conn_rq)
226 226
227 227 #define GRAB_CONN_LOCK(q) { \
228 228 if (q != NULL && CONN_Q(q)) \
229 229 mutex_enter(&(Q_TO_CONN(q))->conn_lock); \
230 230 }
231 231
232 232 #define RELEASE_CONN_LOCK(q) { \
233 233 if (q != NULL && CONN_Q(q)) \
234 234 mutex_exit(&(Q_TO_CONN(q))->conn_lock); \
235 235 }
236 236
237 237 /*
238 238 * Ref counter macros for ioctls. This provides a guard for TCP to stop
239 239 * tcp_close from removing the rq/wq whilst an ioctl is still in flight on the
240 240 * stream. The ioctl could have been queued on e.g. an ipsq. tcp_close will wait
241 241 * until the ioctlref count is zero before proceeding.
242 242 * Ideally conn_oper_pending_ill would be used for this purpose. However, in the
243 243 * case where an ioctl is aborted or interrupted, it can be cleared prematurely.
244 244 * There are also some race possibilities between ip and the stream head which
245 245 * can also end up with conn_oper_pending_ill being cleared prematurely. So, to
246 246 * avoid these situations, we use a dedicated ref counter for ioctls which is
247 247 * used in addition to and in parallel with the normal conn_ref count.
248 248 */
249 249 #define CONN_INC_IOCTLREF_LOCKED(connp) { \
250 250 ASSERT(MUTEX_HELD(&(connp)->conn_lock)); \
251 251 DTRACE_PROBE1(conn__inc__ioctlref, conn_t *, (connp)); \
252 252 (connp)->conn_ioctlref++; \
253 253 mutex_exit(&(connp)->conn_lock); \
254 254 }
255 255
256 256 #define CONN_INC_IOCTLREF(connp) { \
257 257 mutex_enter(&(connp)->conn_lock); \
258 258 CONN_INC_IOCTLREF_LOCKED(connp); \
259 259 }
260 260
261 261 #define CONN_DEC_IOCTLREF(connp) { \
262 262 mutex_enter(&(connp)->conn_lock); \
263 263 DTRACE_PROBE1(conn__dec__ioctlref, conn_t *, (connp)); \
264 264 /* Make sure conn_ioctlref will not underflow. */ \
265 265 ASSERT((connp)->conn_ioctlref != 0); \
266 266 if ((--(connp)->conn_ioctlref == 0) && \
267 267 ((connp)->conn_state_flags & CONN_CLOSING)) { \
268 268 cv_broadcast(&(connp)->conn_cv); \
269 269 } \
270 270 mutex_exit(&(connp)->conn_lock); \
271 271 }
272 272
273 273
274 274 /*
275 275 * Complete the pending operation. Usually an ioctl. Can also
276 276 * be a bind or option management request that got enqueued
277 277 * in an ipsq_t. Called on completion of the operation.
278 278 */
279 279 #define CONN_OPER_PENDING_DONE(connp) { \
280 280 mutex_enter(&(connp)->conn_lock); \
281 281 (connp)->conn_oper_pending_ill = NULL; \
282 282 cv_broadcast(&(connp)->conn_refcv); \
283 283 mutex_exit(&(connp)->conn_lock); \
284 284 CONN_DEC_REF(connp); \
285 285 }
286 286
287 287 /*
288 288 * Values for squeue switch:
289 289 */
290 290 #define IP_SQUEUE_ENTER_NODRAIN 1
291 291 #define IP_SQUEUE_ENTER 2
292 292 #define IP_SQUEUE_FILL 3
293 293
294 294 extern int ip_squeue_flag;
295 295
296 296 /* IP Fragmentation Reassembly Header */
297 297 typedef struct ipf_s {
298 298 struct ipf_s *ipf_hash_next;
299 299 struct ipf_s **ipf_ptphn; /* Pointer to previous hash next. */
300 300 uint32_t ipf_ident; /* Ident to match. */
301 301 uint8_t ipf_protocol; /* Protocol to match. */
302 302 uchar_t ipf_last_frag_seen : 1; /* Last fragment seen ? */
303 303 time_t ipf_timestamp; /* Reassembly start time. */
304 304 mblk_t *ipf_mp; /* mblk we live in. */
305 305 mblk_t *ipf_tail_mp; /* Frag queue tail pointer. */
306 306 int ipf_hole_cnt; /* Number of holes (hard-case). */
307 307 int ipf_end; /* Tail end offset (0 -> hard-case). */
308 308 uint_t ipf_gen; /* Frag queue generation */
309 309 size_t ipf_count; /* Count of bytes used by frag */
310 310 uint_t ipf_nf_hdr_len; /* Length of nonfragmented header */
311 311 in6_addr_t ipf_v6src; /* IPv6 source address */
312 312 in6_addr_t ipf_v6dst; /* IPv6 dest address */
313 313 uint_t ipf_prev_nexthdr_offset; /* Offset for nexthdr value */
314 314 uint8_t ipf_ecn; /* ECN info for the fragments */
315 315 uint8_t ipf_num_dups; /* Number of times dup frags recvd */
316 316 uint16_t ipf_checksum_flags; /* Hardware checksum flags */
317 317 uint32_t ipf_checksum; /* Partial checksum of fragment data */
318 318 } ipf_t;
319 319
320 320 /*
321 321 * IPv4 Fragments
322 322 */
323 323 #define IS_V4_FRAGMENT(ipha_fragment_offset_and_flags) \
324 324 (((ntohs(ipha_fragment_offset_and_flags) & IPH_OFFSET) != 0) || \
325 325 ((ntohs(ipha_fragment_offset_and_flags) & IPH_MF) != 0))
326 326
327 327 #define ipf_src V4_PART_OF_V6(ipf_v6src)
328 328 #define ipf_dst V4_PART_OF_V6(ipf_v6dst)
329 329
330 330 #endif /* _KERNEL */
331 331
332 332 /* ICMP types */
333 333 #define ICMP_ECHO_REPLY 0
334 334 #define ICMP_DEST_UNREACHABLE 3
335 335 #define ICMP_SOURCE_QUENCH 4
336 336 #define ICMP_REDIRECT 5
337 337 #define ICMP_ECHO_REQUEST 8
338 338 #define ICMP_ROUTER_ADVERTISEMENT 9
339 339 #define ICMP_ROUTER_SOLICITATION 10
340 340 #define ICMP_TIME_EXCEEDED 11
341 341 #define ICMP_PARAM_PROBLEM 12
342 342 #define ICMP_TIME_STAMP_REQUEST 13
343 343 #define ICMP_TIME_STAMP_REPLY 14
344 344 #define ICMP_INFO_REQUEST 15
345 345 #define ICMP_INFO_REPLY 16
346 346 #define ICMP_ADDRESS_MASK_REQUEST 17
347 347 #define ICMP_ADDRESS_MASK_REPLY 18
348 348
349 349 /* Evaluates to true if the ICMP type is an ICMP error */
350 350 #define ICMP_IS_ERROR(type) ( \
351 351 (type) == ICMP_DEST_UNREACHABLE || \
352 352 (type) == ICMP_SOURCE_QUENCH || \
353 353 (type) == ICMP_TIME_EXCEEDED || \
354 354 (type) == ICMP_PARAM_PROBLEM)
355 355
356 356 /* ICMP_TIME_EXCEEDED codes */
357 357 #define ICMP_TTL_EXCEEDED 0
358 358 #define ICMP_REASSEMBLY_TIME_EXCEEDED 1
359 359
360 360 /* ICMP_DEST_UNREACHABLE codes */
361 361 #define ICMP_NET_UNREACHABLE 0
362 362 #define ICMP_HOST_UNREACHABLE 1
363 363 #define ICMP_PROTOCOL_UNREACHABLE 2
364 364 #define ICMP_PORT_UNREACHABLE 3
365 365 #define ICMP_FRAGMENTATION_NEEDED 4
366 366 #define ICMP_SOURCE_ROUTE_FAILED 5
367 367 #define ICMP_DEST_NET_UNKNOWN 6
368 368 #define ICMP_DEST_HOST_UNKNOWN 7
369 369 #define ICMP_SRC_HOST_ISOLATED 8
370 370 #define ICMP_DEST_NET_UNREACH_ADMIN 9
371 371 #define ICMP_DEST_HOST_UNREACH_ADMIN 10
372 372 #define ICMP_DEST_NET_UNREACH_TOS 11
373 373 #define ICMP_DEST_HOST_UNREACH_TOS 12
374 374
375 375 /* ICMP Header Structure */
376 376 typedef struct icmph_s {
377 377 uint8_t icmph_type;
378 378 uint8_t icmph_code;
379 379 uint16_t icmph_checksum;
380 380 union {
381 381 struct { /* ECHO request/response structure */
382 382 uint16_t u_echo_ident;
383 383 uint16_t u_echo_seqnum;
384 384 } u_echo;
385 385 struct { /* Destination unreachable structure */
386 386 uint16_t u_du_zero;
387 387 uint16_t u_du_mtu;
388 388 } u_du;
389 389 struct { /* Parameter problem structure */
390 390 uint8_t u_pp_ptr;
391 391 uint8_t u_pp_rsvd[3];
392 392 } u_pp;
393 393 struct { /* Redirect structure */
394 394 ipaddr_t u_rd_gateway;
395 395 } u_rd;
396 396 } icmph_u;
397 397 } icmph_t;
398 398
399 399 #define icmph_echo_ident icmph_u.u_echo.u_echo_ident
400 400 #define icmph_echo_seqnum icmph_u.u_echo.u_echo_seqnum
401 401 #define icmph_du_zero icmph_u.u_du.u_du_zero
402 402 #define icmph_du_mtu icmph_u.u_du.u_du_mtu
403 403 #define icmph_pp_ptr icmph_u.u_pp.u_pp_ptr
404 404 #define icmph_rd_gateway icmph_u.u_rd.u_rd_gateway
405 405
406 406 #define ICMPH_SIZE 8
407 407
408 408 /*
409 409 * Minimum length of transport layer header included in an ICMP error
410 410 * message for it to be considered valid.
411 411 */
412 412 #define ICMP_MIN_TP_HDR_LEN 8
413 413
414 414 /* Aligned IP header */
415 415 typedef struct ipha_s {
416 416 uint8_t ipha_version_and_hdr_length;
417 417 uint8_t ipha_type_of_service;
418 418 uint16_t ipha_length;
419 419 uint16_t ipha_ident;
420 420 uint16_t ipha_fragment_offset_and_flags;
421 421 uint8_t ipha_ttl;
422 422 uint8_t ipha_protocol;
423 423 uint16_t ipha_hdr_checksum;
424 424 ipaddr_t ipha_src;
425 425 ipaddr_t ipha_dst;
426 426 } ipha_t;
427 427
428 428 /*
429 429 * IP Flags
430 430 *
431 431 * Some of these constant names are copied for the DTrace IP provider in
432 432 * usr/src/lib/libdtrace/common/{ip.d.in, ip.sed.in}, which should be kept
433 433 * in sync.
434 434 */
435 435 #define IPH_DF 0x4000 /* Don't fragment */
436 436 #define IPH_MF 0x2000 /* More fragments to come */
437 437 #define IPH_OFFSET 0x1FFF /* Where the offset lives */
438 438
439 439 /* Byte-order specific values */
440 440 #ifdef _BIG_ENDIAN
441 441 #define IPH_DF_HTONS 0x4000 /* Don't fragment */
442 442 #define IPH_MF_HTONS 0x2000 /* More fragments to come */
443 443 #define IPH_OFFSET_HTONS 0x1FFF /* Where the offset lives */
444 444 #else
445 445 #define IPH_DF_HTONS 0x0040 /* Don't fragment */
446 446 #define IPH_MF_HTONS 0x0020 /* More fragments to come */
447 447 #define IPH_OFFSET_HTONS 0xFF1F /* Where the offset lives */
448 448 #endif
449 449
450 450 /* ECN code points for IPv4 TOS byte and IPv6 traffic class octet. */
451 451 #define IPH_ECN_NECT 0x0 /* Not ECN-Capable Transport */
452 452 #define IPH_ECN_ECT1 0x1 /* ECN-Capable Transport, ECT(1) */
453 453 #define IPH_ECN_ECT0 0x2 /* ECN-Capable Transport, ECT(0) */
454 454 #define IPH_ECN_CE 0x3 /* ECN-Congestion Experienced (CE) */
455 455
456 456 struct ill_s;
457 457
458 458 typedef void ip_v6intfid_func_t(struct ill_s *, in6_addr_t *);
459 459 typedef void ip_v6mapinfo_func_t(struct ill_s *, uchar_t *, uchar_t *);
460 460 typedef void ip_v4mapinfo_func_t(struct ill_s *, uchar_t *, uchar_t *);
461 461
462 462 /* IP Mac info structure */
463 463 typedef struct ip_m_s {
464 464 t_uscalar_t ip_m_mac_type; /* From <sys/dlpi.h> */
465 465 int ip_m_type; /* From <net/if_types.h> */
466 466 t_uscalar_t ip_m_ipv4sap;
467 467 t_uscalar_t ip_m_ipv6sap;
468 468 ip_v4mapinfo_func_t *ip_m_v4mapping;
469 469 ip_v6mapinfo_func_t *ip_m_v6mapping;
470 470 ip_v6intfid_func_t *ip_m_v6intfid;
471 471 ip_v6intfid_func_t *ip_m_v6destintfid;
472 472 } ip_m_t;
473 473
474 474 /*
475 475 * The following functions attempt to reduce the link layer dependency
476 476 * of the IP stack. The current set of link specific operations are:
477 477 * a. map from IPv4 class D (224.0/4) multicast address range or the
478 478 * IPv6 multicast address range (ff00::/8) to the link layer multicast
479 479 * address.
480 480 * b. derive the default IPv6 interface identifier from the interface.
481 481 * c. derive the default IPv6 destination interface identifier from
482 482 * the interface (point-to-point only).
483 483 */
484 484 extern void ip_mcast_mapping(struct ill_s *, uchar_t *, uchar_t *);
485 485 /* ip_m_v6*intfid return void and are never NULL */
486 486 #define MEDIA_V6INTFID(ip_m, ill, v6ptr) (ip_m)->ip_m_v6intfid(ill, v6ptr)
487 487 #define MEDIA_V6DESTINTFID(ip_m, ill, v6ptr) \
488 488 (ip_m)->ip_m_v6destintfid(ill, v6ptr)
489 489
490 490 /* Router entry types */
491 491 #define IRE_BROADCAST 0x0001 /* Route entry for broadcast address */
492 492 #define IRE_DEFAULT 0x0002 /* Route entry for default gateway */
493 493 #define IRE_LOCAL 0x0004 /* Route entry for local address */
494 494 #define IRE_LOOPBACK 0x0008 /* Route entry for loopback address */
495 495 #define IRE_PREFIX 0x0010 /* Route entry for prefix routes */
496 496 #ifndef _KERNEL
497 497 /* Keep so user-level still compiles */
498 498 #define IRE_CACHE 0x0020 /* Cached Route entry */
499 499 #endif
500 500 #define IRE_IF_NORESOLVER 0x0040 /* Route entry for local interface */
501 501 /* net without any address mapping. */
502 502 #define IRE_IF_RESOLVER 0x0080 /* Route entry for local interface */
503 503 /* net with resolver. */
504 504 #define IRE_HOST 0x0100 /* Host route entry */
505 505 /* Keep so user-level still compiles */
506 506 #define IRE_HOST_REDIRECT 0x0200 /* only used for T_SVR4_OPTMGMT_REQ */
507 507 #define IRE_IF_CLONE 0x0400 /* Per host clone of IRE_IF */
508 508 #define IRE_MULTICAST 0x0800 /* Special - not in table */
509 509 #define IRE_NOROUTE 0x1000 /* Special - not in table */
510 510
511 511 #define IRE_INTERFACE (IRE_IF_NORESOLVER | IRE_IF_RESOLVER)
512 512
513 513 #define IRE_IF_ALL (IRE_IF_NORESOLVER | IRE_IF_RESOLVER | \
514 514 IRE_IF_CLONE)
515 515 #define IRE_OFFSUBNET (IRE_DEFAULT | IRE_PREFIX | IRE_HOST)
516 516 #define IRE_OFFLINK IRE_OFFSUBNET
517 517 /*
518 518 * Note that we view IRE_NOROUTE as ONLINK since we can "send" to them without
519 519 * going through a router; the result of sending will be an error/icmp error.
520 520 */
521 521 #define IRE_ONLINK (IRE_IF_ALL|IRE_LOCAL|IRE_LOOPBACK| \
522 522 IRE_BROADCAST|IRE_MULTICAST|IRE_NOROUTE)
523 523
524 524 /* Arguments to ire_flush_cache() */
525 525 #define IRE_FLUSH_DELETE 0
526 526 #define IRE_FLUSH_ADD 1
527 527 #define IRE_FLUSH_GWCHANGE 2
528 528
529 529 /*
530 530 * Flags to ire_route_recursive
531 531 */
532 532 #define IRR_NONE 0
533 533 #define IRR_ALLOCATE 1 /* OK to allocate IRE_IF_CLONE */
534 534 #define IRR_INCOMPLETE 2 /* OK to return incomplete chain */
535 535
536 536 /*
537 537 * Open/close synchronization flags.
538 538 * These are kept in a separate field in the conn and the synchronization
539 539 * depends on the atomic 32 bit access to that field.
540 540 */
541 541 #define CONN_CLOSING 0x01 /* ip_close waiting for ip_wsrv */
542 542 #define CONN_CONDEMNED 0x02 /* conn is closing, no more refs */
543 543 #define CONN_INCIPIENT 0x04 /* conn not yet visible, no refs */
544 544 #define CONN_QUIESCED 0x08 /* conn is now quiescent */
545 545 #define CONN_UPDATE_ILL 0x10 /* conn_update_ill in progress */
546 546
547 547 /*
548 548 * Flags for dce_flags field. Specifies which information has been set.
549 549 * dce_ident is always present, but the other ones are identified by the flags.
550 550 */
551 551 #define DCEF_DEFAULT 0x0001 /* Default DCE - no pmtu or uinfo */
552 552 #define DCEF_PMTU 0x0002 /* Different than interface MTU */
553 553 #define DCEF_UINFO 0x0004 /* dce_uinfo set */
554 554 #define DCEF_TOO_SMALL_PMTU 0x0008 /* Smaller than IPv4 MIN */
555 555
556 556 #ifdef _KERNEL
557 557 /*
558 558 * Extra structures need for per-src-addr filtering (IGMPv3/MLDv2)
559 559 */
560 560 #define MAX_FILTER_SIZE 64
561 561
562 562 typedef struct slist_s {
563 563 int sl_numsrc;
564 564 in6_addr_t sl_addr[MAX_FILTER_SIZE];
565 565 } slist_t;
566 566
567 567 /*
568 568 * Following struct is used to maintain retransmission state for
569 569 * a multicast group. One rtx_state_t struct is an in-line field
570 570 * of the ilm_t struct; the slist_ts in the rtx_state_t struct are
571 571 * alloc'd as needed.
572 572 */
573 573 typedef struct rtx_state_s {
574 574 uint_t rtx_timer; /* retrans timer */
575 575 int rtx_cnt; /* retrans count */
576 576 int rtx_fmode_cnt; /* retrans count for fmode change */
577 577 slist_t *rtx_allow;
578 578 slist_t *rtx_block;
579 579 } rtx_state_t;
580 580
581 581 /*
582 582 * Used to construct list of multicast address records that will be
583 583 * sent in a single listener report.
584 584 */
585 585 typedef struct mrec_s {
586 586 struct mrec_s *mrec_next;
587 587 uint8_t mrec_type;
588 588 uint8_t mrec_auxlen; /* currently unused */
589 589 in6_addr_t mrec_group;
590 590 slist_t mrec_srcs;
591 591 } mrec_t;
592 592
593 593 /* Group membership list per upper conn */
594 594
595 595 /*
596 596 * We record the multicast information from the socket option in
597 597 * ilg_ifaddr/ilg_ifindex. This allows rejoining the group in the case when
598 598 * the ifaddr (or ifindex) disappears and later reappears, potentially on
599 599 * a different ill. The IPv6 multicast socket options and ioctls all specify
600 600 * the interface using an ifindex. For IPv4 some socket options/ioctls use
601 601 * the interface address and others use the index. We record here the method
602 602 * that was actually used (and leave the other of ilg_ifaddr or ilg_ifindex)
603 603 * at zero so that we can rejoin the way the application intended.
604 604 *
605 605 * We track the ill on which we will or already have joined an ilm using
606 606 * ilg_ill. When we have succeeded joining the ilm and have a refhold on it
607 607 * then we set ilg_ilm. Thus intentionally there is a window where ilg_ill is
608 608 * set and ilg_ilm is not set. This allows clearing ilg_ill as a signal that
609 609 * the ill is being unplumbed and the ilm should be discarded.
610 610 *
611 611 * ilg records the state of multicast memberships of a socket end point.
612 612 * ilm records the state of multicast memberships with the driver and is
613 613 * maintained per interface.
614 614 *
615 615 * The ilg state is protected by conn_ilg_lock.
616 616 * The ilg will not be freed until ilg_refcnt drops to zero.
617 617 */
618 618 typedef struct ilg_s {
619 619 struct ilg_s *ilg_next;
620 620 struct ilg_s **ilg_ptpn;
621 621 struct conn_s *ilg_connp; /* Back pointer to get lock */
622 622 in6_addr_t ilg_v6group;
623 623 ipaddr_t ilg_ifaddr; /* For some IPv4 cases */
624 624 uint_t ilg_ifindex; /* IPv6 and some other IPv4 cases */
625 625 struct ill_s *ilg_ill; /* Where ilm is joined. No refhold */
626 626 struct ilm_s *ilg_ilm; /* With ilm_refhold */
627 627 uint_t ilg_refcnt;
628 628 mcast_record_t ilg_fmode; /* MODE_IS_INCLUDE/MODE_IS_EXCLUDE */
629 629 slist_t *ilg_filter;
630 630 boolean_t ilg_condemned; /* Conceptually deleted */
631 631 } ilg_t;
632 632
633 633 /*
634 634 * Multicast address list entry for ill.
635 635 * ilm_ill is used by IPv4 and IPv6
636 636 *
637 637 * The ilm state (and other multicast state on the ill) is protected by
638 638 * ill_mcast_lock. Operations that change state on both an ilg and ilm
639 639 * in addition use ill_mcast_serializer to ensure that we can't have
640 640 * interleaving between e.g., add and delete operations for the same conn_t,
641 641 * group, and ill. The ill_mcast_serializer is also used to ensure that
642 642 * multicast group joins do not occur on an interface that is in the process
643 643 * of joining an IPMP group.
644 644 *
645 645 * The comment below (and for other netstack_t references) refers
646 646 * to the fact that we only do netstack_hold in particular cases,
647 647 * such as the references from open endpoints (ill_t and conn_t's
648 648 * pointers). Internally within IP we rely on IP's ability to cleanup e.g.
649 649 * ire_t's when an ill goes away.
650 650 */
651 651 typedef struct ilm_s {
652 652 in6_addr_t ilm_v6addr;
653 653 int ilm_refcnt;
654 654 uint_t ilm_timer; /* IGMP/MLD query resp timer, in msec */
655 655 struct ilm_s *ilm_next; /* Linked list for each ill */
656 656 uint_t ilm_state; /* state of the membership */
657 657 struct ill_s *ilm_ill; /* Back pointer to ill - ill_ilm_cnt */
658 658 zoneid_t ilm_zoneid;
659 659 int ilm_no_ilg_cnt; /* number of joins w/ no ilg */
660 660 mcast_record_t ilm_fmode; /* MODE_IS_INCLUDE/MODE_IS_EXCLUDE */
661 661 slist_t *ilm_filter; /* source filter list */
662 662 slist_t *ilm_pendsrcs; /* relevant src addrs for pending req */
663 663 rtx_state_t ilm_rtx; /* SCR retransmission state */
664 664 ipaddr_t ilm_ifaddr; /* For IPv4 netstat */
665 665 ip_stack_t *ilm_ipst; /* Does not have a netstack_hold */
666 666 } ilm_t;
667 667
668 668 #define ilm_addr V4_PART_OF_V6(ilm_v6addr)
669 669
670 670 /*
671 671 * Soft reference to an IPsec SA.
672 672 *
673 673 * On relative terms, conn's can be persistent (living as long as the
674 674 * processes which create them), while SA's are ephemeral (dying when
675 675 * they hit their time-based or byte-based lifetimes).
676 676 *
677 677 * We could hold a hard reference to an SA from an ipsec_latch_t,
678 678 * but this would cause expired SA's to linger for a potentially
679 679 * unbounded time.
680 680 *
681 681 * Instead, we remember the hash bucket number and bucket generation
682 682 * in addition to the pointer. The bucket generation is incremented on
683 683 * each deletion.
684 684 */
685 685 typedef struct ipsa_ref_s
686 686 {
687 687 struct ipsa_s *ipsr_sa;
688 688 struct isaf_s *ipsr_bucket;
689 689 uint64_t ipsr_gen;
690 690 } ipsa_ref_t;
691 691
692 692 /*
693 693 * IPsec "latching" state.
694 694 *
695 695 * In the presence of IPsec policy, fully-bound conn's bind a connection
696 696 * to more than just the 5-tuple, but also a specific IPsec action and
697 697 * identity-pair.
698 698 * The identity pair is accessed from both the receive and transmit side
699 699 * hence it is maintained in the ipsec_latch_t structure. conn_latch and
700 700 * ixa_ipsec_latch points to it.
701 701 * The policy and actions are stored in conn_latch_in_policy and
702 702 * conn_latch_in_action for the inbound side, and in ixa_ipsec_policy and
703 703 * ixa_ipsec_action for the transmit side.
704 704 *
705 705 * As an optimization, we also cache soft references to IPsec SA's in
706 706 * ip_xmit_attr_t so that we can fast-path around most of the work needed for
707 707 * outbound IPsec SA selection.
708 708 */
709 709 typedef struct ipsec_latch_s
710 710 {
711 711 kmutex_t ipl_lock;
712 712 uint32_t ipl_refcnt;
713 713
714 714 struct ipsid_s *ipl_local_cid;
715 715 struct ipsid_s *ipl_remote_cid;
716 716 unsigned int
717 717 ipl_ids_latched : 1,
718 718
719 719 ipl_pad_to_bit_31 : 31;
720 720 } ipsec_latch_t;
721 721
722 722 #define IPLATCH_REFHOLD(ipl) { \
723 723 atomic_inc_32(&(ipl)->ipl_refcnt); \
724 724 ASSERT((ipl)->ipl_refcnt != 0); \
725 725 }
726 726
727 727 #define IPLATCH_REFRELE(ipl) { \
728 728 ASSERT((ipl)->ipl_refcnt != 0); \
729 729 membar_exit(); \
730 730 if (atomic_dec_32_nv(&(ipl)->ipl_refcnt) == 0) \
731 731 iplatch_free(ipl); \
732 732 }
733 733
734 734 /*
735 735 * peer identity structure.
736 736 */
737 737 typedef struct conn_s conn_t;
738 738
739 739 /*
740 740 * This is used to match an inbound/outbound datagram with policy.
741 741 */
742 742 typedef struct ipsec_selector {
743 743 in6_addr_t ips_local_addr_v6;
744 744 in6_addr_t ips_remote_addr_v6;
745 745 uint16_t ips_local_port;
746 746 uint16_t ips_remote_port;
747 747 uint8_t ips_icmp_type;
748 748 uint8_t ips_icmp_code;
749 749 uint8_t ips_protocol;
750 750 uint8_t ips_isv4 : 1,
751 751 ips_is_icmp_inv_acq: 1;
752 752 } ipsec_selector_t;
753 753
754 754 /*
755 755 * Note that we put v4 addresses in the *first* 32-bit word of the
756 756 * selector rather than the last to simplify the prefix match/mask code
757 757 * in spd.c
758 758 */
759 759 #define ips_local_addr_v4 ips_local_addr_v6.s6_addr32[0]
760 760 #define ips_remote_addr_v4 ips_remote_addr_v6.s6_addr32[0]
761 761
762 762 /* Values used in IP by IPSEC Code */
763 763 #define IPSEC_OUTBOUND B_TRUE
764 764 #define IPSEC_INBOUND B_FALSE
765 765
766 766 /*
767 767 * There are two variants in policy failures. The packet may come in
768 768 * secure when not needed (IPSEC_POLICY_???_NOT_NEEDED) or it may not
769 769 * have the desired level of protection (IPSEC_POLICY_MISMATCH).
770 770 */
771 771 #define IPSEC_POLICY_NOT_NEEDED 0
772 772 #define IPSEC_POLICY_MISMATCH 1
773 773 #define IPSEC_POLICY_AUTH_NOT_NEEDED 2
774 774 #define IPSEC_POLICY_ENCR_NOT_NEEDED 3
775 775 #define IPSEC_POLICY_SE_NOT_NEEDED 4
776 776 #define IPSEC_POLICY_MAX 5 /* Always max + 1. */
777 777
778 778 /*
779 779 * Check with IPSEC inbound policy if
780 780 *
781 781 * 1) per-socket policy is present - indicated by conn_in_enforce_policy.
782 782 * 2) Or if we have not cached policy on the conn and the global policy is
783 783 * non-empty.
784 784 */
785 785 #define CONN_INBOUND_POLICY_PRESENT(connp, ipss) \
786 786 ((connp)->conn_in_enforce_policy || \
787 787 (!((connp)->conn_policy_cached) && \
788 788 (ipss)->ipsec_inbound_v4_policy_present))
789 789
790 790 #define CONN_INBOUND_POLICY_PRESENT_V6(connp, ipss) \
791 791 ((connp)->conn_in_enforce_policy || \
792 792 (!(connp)->conn_policy_cached && \
793 793 (ipss)->ipsec_inbound_v6_policy_present))
794 794
795 795 #define CONN_OUTBOUND_POLICY_PRESENT(connp, ipss) \
796 796 ((connp)->conn_out_enforce_policy || \
797 797 (!((connp)->conn_policy_cached) && \
798 798 (ipss)->ipsec_outbound_v4_policy_present))
799 799
800 800 #define CONN_OUTBOUND_POLICY_PRESENT_V6(connp, ipss) \
801 801 ((connp)->conn_out_enforce_policy || \
802 802 (!(connp)->conn_policy_cached && \
803 803 (ipss)->ipsec_outbound_v6_policy_present))
804 804
805 805 /*
806 806 * Information cached in IRE for upper layer protocol (ULP).
807 807 */
808 808 typedef struct iulp_s {
809 809 boolean_t iulp_set; /* Is any metric set? */
810 810 uint32_t iulp_ssthresh; /* Slow start threshold (TCP). */
811 811 clock_t iulp_rtt; /* Guestimate in millisecs. */
812 812 clock_t iulp_rtt_sd; /* Cached value of RTT variance. */
813 813 uint32_t iulp_spipe; /* Send pipe size. */
814 814 uint32_t iulp_rpipe; /* Receive pipe size. */
815 815 uint32_t iulp_rtomax; /* Max round trip timeout. */
816 816 uint32_t iulp_sack; /* Use SACK option (TCP)? */
817 817 uint32_t iulp_mtu; /* Setable with routing sockets */
818 818
819 819 uint32_t
820 820 iulp_tstamp_ok : 1, /* Use timestamp option (TCP)? */
821 821 iulp_wscale_ok : 1, /* Use window scale option (TCP)? */
822 822 iulp_ecn_ok : 1, /* Enable ECN (for TCP)? */
823 823 iulp_pmtud_ok : 1, /* Enable PMTUd? */
824 824
825 825 /* These three are passed out by ip_set_destination */
826 826 iulp_localnet: 1, /* IRE_ONLINK */
827 827 iulp_loopback: 1, /* IRE_LOOPBACK */
828 828 iulp_local: 1, /* IRE_LOCAL */
829 829
830 830 iulp_not_used : 25;
831 831 } iulp_t;
832 832
833 833 /*
834 834 * The conn drain list structure (idl_t), protected by idl_lock. Each conn_t
835 835 * inserted in the list points back at this idl_t using conn_idl, and is
836 836 * chained by conn_drain_next and conn_drain_prev, which are also protected by
837 837 * idl_lock. When flow control is relieved, either ip_wsrv() (STREAMS) or
838 838 * ill_flow_enable() (non-STREAMS) will call conn_drain().
839 839 *
840 840 * The conn drain list, idl_t, itself is part of tx cookie list structure.
841 841 * A tx cookie list points to a blocked Tx ring and contains the list of
842 842 * all conn's that are blocked due to the flow-controlled Tx ring (via
843 843 * the idl drain list). Note that a link can have multiple Tx rings. The
844 844 * drain list will store the conn's blocked due to Tx ring being flow
845 845 * controlled.
846 846 */
847 847
848 848 typedef uintptr_t ip_mac_tx_cookie_t;
849 849 typedef struct idl_s idl_t;
850 850 typedef struct idl_tx_list_s idl_tx_list_t;
851 851
852 852 struct idl_tx_list_s {
853 853 ip_mac_tx_cookie_t txl_cookie;
854 854 kmutex_t txl_lock; /* Lock for this list */
855 855 idl_t *txl_drain_list;
856 856 int txl_drain_index;
857 857 };
858 858
859 859 struct idl_s {
860 860 conn_t *idl_conn; /* Head of drain list */
861 861 kmutex_t idl_lock; /* Lock for this list */
862 862 idl_tx_list_t *idl_itl;
863 863 };
864 864
865 865 /*
866 866 * Interface route structure which holds the necessary information to recreate
867 867 * routes that are tied to an interface i.e. have ire_ill set.
868 868 *
869 869 * These routes which were initially created via a routing socket or via the
870 870 * SIOCADDRT ioctl may be gateway routes (RTF_GATEWAY being set) or may be
871 871 * traditional interface routes. When an ill comes back up after being
872 872 * down, this information will be used to recreate the routes. These
873 873 * are part of an mblk_t chain that hangs off of the ILL (ill_saved_ire_mp).
874 874 */
875 875 typedef struct ifrt_s {
876 876 ushort_t ifrt_type; /* Type of IRE */
877 877 in6_addr_t ifrt_v6addr; /* Address IRE represents. */
878 878 in6_addr_t ifrt_v6gateway_addr; /* Gateway if IRE_OFFLINK */
879 879 in6_addr_t ifrt_v6setsrc_addr; /* Src addr if RTF_SETSRC */
880 880 in6_addr_t ifrt_v6mask; /* Mask for matching IRE. */
881 881 uint32_t ifrt_flags; /* flags related to route */
882 882 iulp_t ifrt_metrics; /* Routing socket metrics */
883 883 zoneid_t ifrt_zoneid; /* zoneid for route */
884 884 } ifrt_t;
885 885
886 886 #define ifrt_addr V4_PART_OF_V6(ifrt_v6addr)
887 887 #define ifrt_gateway_addr V4_PART_OF_V6(ifrt_v6gateway_addr)
888 888 #define ifrt_mask V4_PART_OF_V6(ifrt_v6mask)
889 889 #define ifrt_setsrc_addr V4_PART_OF_V6(ifrt_v6setsrc_addr)
890 890
891 891 /* Number of IP addresses that can be hosted on a physical interface */
892 892 #define MAX_ADDRS_PER_IF 8192
893 893 /*
894 894 * Number of Source addresses to be considered for source address
895 895 * selection. Used by ipif_select_source_v4/v6.
896 896 */
897 897 #define MAX_IPIF_SELECT_SOURCE 50
898 898
899 899 #ifdef IP_DEBUG
900 900 /*
901 901 * Trace refholds and refreles for debugging.
902 902 */
903 903 #define TR_STACK_DEPTH 14
904 904 typedef struct tr_buf_s {
905 905 int tr_depth;
906 906 clock_t tr_time;
907 907 pc_t tr_stack[TR_STACK_DEPTH];
908 908 } tr_buf_t;
909 909
910 910 typedef struct th_trace_s {
911 911 int th_refcnt;
912 912 uint_t th_trace_lastref;
913 913 kthread_t *th_id;
914 914 #define TR_BUF_MAX 38
915 915 tr_buf_t th_trbuf[TR_BUF_MAX];
916 916 } th_trace_t;
917 917
918 918 typedef struct th_hash_s {
919 919 list_node_t thh_link;
920 920 mod_hash_t *thh_hash;
921 921 ip_stack_t *thh_ipst;
922 922 } th_hash_t;
923 923 #endif
924 924
925 925 /* The following are ipif_state_flags */
926 926 #define IPIF_CONDEMNED 0x1 /* The ipif is being removed */
927 927 #define IPIF_CHANGING 0x2 /* A critcal ipif field is changing */
928 928 #define IPIF_SET_LINKLOCAL 0x10 /* transient flag during bringup */
929 929
930 930 /* IP interface structure, one per local address */
931 931 typedef struct ipif_s {
932 932 struct ipif_s *ipif_next;
933 933 struct ill_s *ipif_ill; /* Back pointer to our ill */
934 934 int ipif_id; /* Logical unit number */
935 935 in6_addr_t ipif_v6lcl_addr; /* Local IP address for this if. */
936 936 in6_addr_t ipif_v6subnet; /* Subnet prefix for this if. */
937 937 in6_addr_t ipif_v6net_mask; /* Net mask for this interface. */
938 938 in6_addr_t ipif_v6brd_addr; /* Broadcast addr for this interface. */
939 939 in6_addr_t ipif_v6pp_dst_addr; /* Point-to-point dest address. */
940 940 uint64_t ipif_flags; /* Interface flags. */
941 941 uint_t ipif_ire_type; /* IRE_LOCAL or IRE_LOOPBACK */
942 942
943 943 /*
944 944 * The packet count in the ipif contain the sum of the
945 945 * packet counts in dead IRE_LOCAL/LOOPBACK for this ipif.
946 946 */
947 947 uint_t ipif_ib_pkt_count; /* Inbound packets for our dead IREs */
948 948
949 949 /* Exclusive bit fields, protected by ipsq_t */
950 950 unsigned int
951 951 ipif_was_up : 1, /* ipif was up before */
952 952 ipif_addr_ready : 1, /* DAD is done */
953 953 ipif_was_dup : 1, /* DAD had failed */
954 954 ipif_added_nce : 1, /* nce added for local address */
955 955
956 956 ipif_pad_to_31 : 28;
957 957
958 958 ilm_t *ipif_allhosts_ilm; /* For all-nodes join */
959 959 ilm_t *ipif_solmulti_ilm; /* For IPv6 solicited multicast join */
960 960
961 961 uint_t ipif_seqid; /* unique index across all ills */
962 962 uint_t ipif_state_flags; /* See IPIF_* flag defs above */
963 963 uint_t ipif_refcnt; /* active consistent reader cnt */
964 964
965 965 zoneid_t ipif_zoneid; /* zone ID number */
966 966 timeout_id_t ipif_recovery_id; /* Timer for DAD recovery */
967 967 boolean_t ipif_trace_disable; /* True when alloc fails */
968 968 /*
969 969 * For an IPMP interface, ipif_bound_ill tracks the ill whose hardware
970 970 * information this ipif is associated with via ARP/NDP. We can use
971 971 * an ill pointer (rather than an index) because only ills that are
972 972 * part of a group will be pointed to, and an ill cannot disappear
973 973 * while it's in a group.
974 974 */
975 975 struct ill_s *ipif_bound_ill;
976 976 struct ipif_s *ipif_bound_next; /* bound ipif chain */
977 977 boolean_t ipif_bound; /* B_TRUE if we successfully bound */
978 978
979 979 struct ire_s *ipif_ire_local; /* Our IRE_LOCAL or LOOPBACK */
980 980 struct ire_s *ipif_ire_if; /* Our IRE_INTERFACE */
981 981 } ipif_t;
982 982
983 983 /*
984 984 * The following table lists the protection levels of the various members
985 985 * of the ipif_t. The following notation is used.
986 986 *
987 987 * Write once - Written to only once at the time of bringing up
988 988 * the interface and can be safely read after the bringup without any lock.
989 989 *
990 990 * ipsq - Need to execute in the ipsq to perform the indicated access.
991 991 *
992 992 * ill_lock - Need to hold this mutex to perform the indicated access.
993 993 *
994 994 * ill_g_lock - Need to hold this rw lock as reader/writer for read access or
995 995 * write access respectively.
996 996 *
997 997 * down ill - Written to only when the ill is down (i.e all ipifs are down)
998 998 * up ill - Read only when the ill is up (i.e. at least 1 ipif is up)
999 999 *
1000 1000 * Table of ipif_t members and their protection
1001 1001 *
1002 1002 * ipif_next ipsq + ill_lock + ipsq OR ill_lock OR
1003 1003 * ill_g_lock ill_g_lock
1004 1004 * ipif_ill ipsq + down ipif write once
1005 1005 * ipif_id ipsq + down ipif write once
1006 1006 * ipif_v6lcl_addr ipsq + down ipif up ipif
1007 1007 * ipif_v6subnet ipsq + down ipif up ipif
1008 1008 * ipif_v6net_mask ipsq + down ipif up ipif
1009 1009 *
1010 1010 * ipif_v6brd_addr
1011 1011 * ipif_v6pp_dst_addr
1012 1012 * ipif_flags ill_lock ill_lock
1013 1013 * ipif_ire_type ipsq + down ill up ill
1014 1014 *
1015 1015 * ipif_ib_pkt_count Approx
1016 1016 *
1017 1017 * bit fields ill_lock ill_lock
1018 1018 *
1019 1019 * ipif_allhosts_ilm ipsq ipsq
1020 1020 * ipif_solmulti_ilm ipsq ipsq
1021 1021 *
1022 1022 * ipif_seqid ipsq Write once
1023 1023 *
1024 1024 * ipif_state_flags ill_lock ill_lock
1025 1025 * ipif_refcnt ill_lock ill_lock
1026 1026 * ipif_bound_ill ipsq + ipmp_lock ipsq OR ipmp_lock
1027 1027 * ipif_bound_next ipsq ipsq
1028 1028 * ipif_bound ipsq ipsq
1029 1029 *
1030 1030 * ipif_ire_local ipsq + ips_ill_g_lock ipsq OR ips_ill_g_lock
1031 1031 * ipif_ire_if ipsq + ips_ill_g_lock ipsq OR ips_ill_g_lock
1032 1032 */
1033 1033
1034 1034 /*
1035 1035 * Return values from ip_laddr_verify_{v4,v6}
1036 1036 */
1037 1037 typedef enum { IPVL_UNICAST_UP, IPVL_UNICAST_DOWN, IPVL_MCAST, IPVL_BCAST,
1038 1038 IPVL_BAD} ip_laddr_t;
1039 1039
1040 1040
1041 1041 #define IP_TR_HASH(tid) ((((uintptr_t)tid) >> 6) & (IP_TR_HASH_MAX - 1))
1042 1042
1043 1043 #ifdef DEBUG
1044 1044 #define IPIF_TRACE_REF(ipif) ipif_trace_ref(ipif)
1045 1045 #define ILL_TRACE_REF(ill) ill_trace_ref(ill)
1046 1046 #define IPIF_UNTRACE_REF(ipif) ipif_untrace_ref(ipif)
1047 1047 #define ILL_UNTRACE_REF(ill) ill_untrace_ref(ill)
1048 1048 #else
1049 1049 #define IPIF_TRACE_REF(ipif)
1050 1050 #define ILL_TRACE_REF(ill)
1051 1051 #define IPIF_UNTRACE_REF(ipif)
1052 1052 #define ILL_UNTRACE_REF(ill)
1053 1053 #endif
1054 1054
1055 1055 /* IPv4 compatibility macros */
1056 1056 #define ipif_lcl_addr V4_PART_OF_V6(ipif_v6lcl_addr)
1057 1057 #define ipif_subnet V4_PART_OF_V6(ipif_v6subnet)
1058 1058 #define ipif_net_mask V4_PART_OF_V6(ipif_v6net_mask)
1059 1059 #define ipif_brd_addr V4_PART_OF_V6(ipif_v6brd_addr)
1060 1060 #define ipif_pp_dst_addr V4_PART_OF_V6(ipif_v6pp_dst_addr)
1061 1061
1062 1062 /* Macros for easy backreferences to the ill. */
1063 1063 #define ipif_isv6 ipif_ill->ill_isv6
1064 1064
1065 1065 #define SIOCLIFADDR_NDX 112 /* ndx of SIOCLIFADDR in the ndx ioctl table */
1066 1066
1067 1067 /*
1068 1068 * mode value for ip_ioctl_finish for finishing an ioctl
1069 1069 */
1070 1070 #define CONN_CLOSE 1 /* No mi_copy */
1071 1071 #define COPYOUT 2 /* do an mi_copyout if needed */
1072 1072 #define NO_COPYOUT 3 /* do an mi_copy_done */
1073 1073 #define IPI2MODE(ipi) ((ipi)->ipi_flags & IPI_GET_CMD ? COPYOUT : NO_COPYOUT)
1074 1074
1075 1075 /*
1076 1076 * The IP-MT design revolves around the serialization objects ipsq_t (IPSQ)
1077 1077 * and ipxop_t (exclusive operation or "xop"). Becoming "writer" on an IPSQ
1078 1078 * ensures that no other threads can become "writer" on any IPSQs sharing that
1079 1079 * IPSQ's xop until the writer thread is done.
1080 1080 *
1081 1081 * Each phyint points to one IPSQ that remains fixed over the phyint's life.
1082 1082 * Each IPSQ points to one xop that can change over the IPSQ's life. If a
1083 1083 * phyint is *not* in an IPMP group, then its IPSQ will refer to the IPSQ's
1084 1084 * "own" xop (ipsq_ownxop). If a phyint *is* part of an IPMP group, then its
1085 1085 * IPSQ will refer to the "group" xop, which is shorthand for the xop of the
1086 1086 * IPSQ of the IPMP meta-interface's phyint. Thus, all phyints that are part
1087 1087 * of the same IPMP group will have their IPSQ's point to the group xop, and
1088 1088 * thus becoming "writer" on any phyint in the group will prevent any other
1089 1089 * writer on any other phyint in the group. All IPSQs sharing the same xop
1090 1090 * are chained together through ipsq_next (in the degenerate common case,
1091 1091 * ipsq_next simply refers to itself). Note that the group xop is guaranteed
1092 1092 * to exist at least as long as there are members in the group, since the IPMP
1093 1093 * meta-interface can only be destroyed if the group is empty.
1094 1094 *
1095 1095 * Incoming exclusive operation requests are enqueued on the IPSQ they arrived
1096 1096 * on rather than the xop. This makes switching xop's (as would happen when a
1097 1097 * phyint leaves an IPMP group) simple, because after the phyint leaves the
1098 1098 * group, any operations enqueued on its IPSQ can be safely processed with
1099 1099 * respect to its new xop, and any operations enqueued on the IPSQs of its
1100 1100 * former group can be processed with respect to their existing group xop.
1101 1101 * Even so, switching xops is a subtle dance; see ipsq_dq() for details.
1102 1102 *
1103 1103 * An IPSQ's "own" xop is embedded within the IPSQ itself since they have have
1104 1104 * identical lifetimes, and because doing so simplifies pointer management.
1105 1105 * While each phyint and IPSQ point to each other, it is not possible to free
1106 1106 * the IPSQ when the phyint is freed, since we may still *inside* the IPSQ
1107 1107 * when the phyint is being freed. Thus, ipsq_phyint is set to NULL when the
1108 1108 * phyint is freed, and the IPSQ free is later done in ipsq_exit().
1109 1109 *
1110 1110 * ipsq_t synchronization: read write
1111 1111 *
1112 1112 * ipsq_xopq_mphead ipx_lock ipx_lock
1113 1113 * ipsq_xopq_mptail ipx_lock ipx_lock
1114 1114 * ipsq_xop_switch_mp ipsq_lock ipsq_lock
1115 1115 * ipsq_phyint write once write once
1116 1116 * ipsq_next RW_READER ill_g_lock RW_WRITER ill_g_lock
1117 1117 * ipsq_xop ipsq_lock or ipsq ipsq_lock + ipsq
1118 1118 * ipsq_swxop ipsq ipsq
1119 1119 * ipsq_ownxop see ipxop_t see ipxop_t
1120 1120 * ipsq_ipst write once write once
1121 1121 *
1122 1122 * ipxop_t synchronization: read write
1123 1123 *
1124 1124 * ipx_writer ipx_lock ipx_lock
1125 1125 * ipx_xop_queued ipx_lock ipx_lock
1126 1126 * ipx_mphead ipx_lock ipx_lock
1127 1127 * ipx_mptail ipx_lock ipx_lock
1128 1128 * ipx_ipsq write once write once
1129 1129 * ips_ipsq_queued ipx_lock ipx_lock
1130 1130 * ipx_waitfor ipsq or ipx_lock ipsq + ipx_lock
1131 1131 * ipx_reentry_cnt ipsq or ipx_lock ipsq + ipx_lock
1132 1132 * ipx_current_done ipsq ipsq
1133 1133 * ipx_current_ioctl ipsq ipsq
1134 1134 * ipx_current_ipif ipsq or ipx_lock ipsq + ipx_lock
1135 1135 * ipx_pending_ipif ipsq or ipx_lock ipsq + ipx_lock
1136 1136 * ipx_pending_mp ipsq or ipx_lock ipsq + ipx_lock
1137 1137 * ipx_forced ipsq ipsq
1138 1138 * ipx_depth ipsq ipsq
1139 1139 * ipx_stack ipsq ipsq
1140 1140 */
1141 1141 typedef struct ipxop_s {
1142 1142 kmutex_t ipx_lock; /* see above */
1143 1143 kthread_t *ipx_writer; /* current owner */
1144 1144 mblk_t *ipx_mphead; /* messages tied to this op */
1145 1145 mblk_t *ipx_mptail;
1146 1146 struct ipsq_s *ipx_ipsq; /* associated ipsq */
1147 1147 boolean_t ipx_ipsq_queued; /* ipsq using xop has queued op */
1148 1148 int ipx_waitfor; /* waiting; values encoded below */
1149 1149 int ipx_reentry_cnt;
1150 1150 boolean_t ipx_current_done; /* is the current operation done? */
1151 1151 int ipx_current_ioctl; /* current ioctl, or 0 if no ioctl */
1152 1152 ipif_t *ipx_current_ipif; /* ipif for current op */
1153 1153 ipif_t *ipx_pending_ipif; /* ipif for ipx_pending_mp */
1154 1154 mblk_t *ipx_pending_mp; /* current ioctl mp while waiting */
1155 1155 boolean_t ipx_forced; /* debugging aid */
1156 1156 #ifdef DEBUG
1157 1157 int ipx_depth; /* debugging aid */
1158 1158 #define IPX_STACK_DEPTH 15
1159 1159 pc_t ipx_stack[IPX_STACK_DEPTH]; /* debugging aid */
1160 1160 #endif
1161 1161 } ipxop_t;
1162 1162
1163 1163 typedef struct ipsq_s {
1164 1164 kmutex_t ipsq_lock; /* see above */
1165 1165 mblk_t *ipsq_switch_mp; /* op to handle right after switch */
1166 1166 mblk_t *ipsq_xopq_mphead; /* list of excl ops (mostly ioctls) */
1167 1167 mblk_t *ipsq_xopq_mptail;
1168 1168 struct phyint *ipsq_phyint; /* associated phyint */
1169 1169 struct ipsq_s *ipsq_next; /* next ipsq sharing ipsq_xop */
1170 1170 struct ipxop_s *ipsq_xop; /* current xop synchronization info */
1171 1171 struct ipxop_s *ipsq_swxop; /* switch xop to on ipsq_exit() */
1172 1172 struct ipxop_s ipsq_ownxop; /* our own xop (may not be in-use) */
1173 1173 ip_stack_t *ipsq_ipst; /* does not have a netstack_hold */
1174 1174 } ipsq_t;
1175 1175
1176 1176 /*
1177 1177 * ipx_waitfor values:
1178 1178 */
1179 1179 enum {
1180 1180 IPIF_DOWN = 1, /* ipif_down() waiting for refcnts to drop */
1181 1181 ILL_DOWN, /* ill_down() waiting for refcnts to drop */
1182 1182 IPIF_FREE, /* ipif_free() waiting for refcnts to drop */
1183 1183 ILL_FREE /* ill unplumb waiting for refcnts to drop */
1184 1184 };
1185 1185
1186 1186 /* Operation types for ipsq_try_enter() */
1187 1187 #define CUR_OP 0 /* request writer within current operation */
1188 1188 #define NEW_OP 1 /* request writer for a new operation */
1189 1189 #define SWITCH_OP 2 /* request writer once IPSQ XOP switches */
1190 1190
1191 1191 /*
1192 1192 * Kstats tracked on each IPMP meta-interface. Order here must match
1193 1193 * ipmp_kstats[] in ip/ipmp.c.
1194 1194 */
1195 1195 enum {
1196 1196 IPMP_KSTAT_OBYTES, IPMP_KSTAT_OBYTES64, IPMP_KSTAT_RBYTES,
1197 1197 IPMP_KSTAT_RBYTES64, IPMP_KSTAT_OPACKETS, IPMP_KSTAT_OPACKETS64,
1198 1198 IPMP_KSTAT_OERRORS, IPMP_KSTAT_IPACKETS, IPMP_KSTAT_IPACKETS64,
1199 1199 IPMP_KSTAT_IERRORS, IPMP_KSTAT_MULTIRCV, IPMP_KSTAT_MULTIXMT,
1200 1200 IPMP_KSTAT_BRDCSTRCV, IPMP_KSTAT_BRDCSTXMT, IPMP_KSTAT_LINK_UP,
1201 1201 IPMP_KSTAT_MAX /* keep last */
1202 1202 };
1203 1203
1204 1204 /*
1205 1205 * phyint represents state that is common to both IPv4 and IPv6 interfaces.
1206 1206 * There is a separate ill_t representing IPv4 and IPv6 which has a
1207 1207 * backpointer to the phyint structure for accessing common state.
1208 1208 */
1209 1209 typedef struct phyint {
1210 1210 struct ill_s *phyint_illv4;
1211 1211 struct ill_s *phyint_illv6;
1212 1212 uint_t phyint_ifindex; /* SIOCSLIFINDEX */
1213 1213 uint64_t phyint_flags;
1214 1214 avl_node_t phyint_avl_by_index; /* avl tree by index */
1215 1215 avl_node_t phyint_avl_by_name; /* avl tree by name */
1216 1216 kmutex_t phyint_lock;
1217 1217 struct ipsq_s *phyint_ipsq; /* back pointer to ipsq */
1218 1218 struct ipmp_grp_s *phyint_grp; /* associated IPMP group */
1219 1219 char phyint_name[LIFNAMSIZ]; /* physical interface name */
1220 1220 uint64_t phyint_kstats0[IPMP_KSTAT_MAX]; /* baseline kstats */
1221 1221 } phyint_t;
1222 1222
1223 1223 #define CACHE_ALIGN_SIZE 64
1224 1224 #define CACHE_ALIGN(align_struct) P2ROUNDUP(sizeof (struct align_struct),\
1225 1225 CACHE_ALIGN_SIZE)
1226 1226 struct _phyint_list_s_ {
1227 1227 avl_tree_t phyint_list_avl_by_index; /* avl tree by index */
1228 1228 avl_tree_t phyint_list_avl_by_name; /* avl tree by name */
1229 1229 };
1230 1230
1231 1231 typedef union phyint_list_u {
1232 1232 struct _phyint_list_s_ phyint_list_s;
1233 1233 char phyint_list_filler[CACHE_ALIGN(_phyint_list_s_)];
1234 1234 } phyint_list_t;
1235 1235
1236 1236 #define phyint_list_avl_by_index phyint_list_s.phyint_list_avl_by_index
1237 1237 #define phyint_list_avl_by_name phyint_list_s.phyint_list_avl_by_name
1238 1238
1239 1239 /*
1240 1240 * Fragmentation hash bucket
1241 1241 */
1242 1242 typedef struct ipfb_s {
1243 1243 struct ipf_s *ipfb_ipf; /* List of ... */
1244 1244 size_t ipfb_count; /* Count of bytes used by frag(s) */
1245 1245 kmutex_t ipfb_lock; /* Protect all ipf in list */
1246 1246 uint_t ipfb_frag_pkts; /* num of distinct fragmented pkts */
1247 1247 } ipfb_t;
1248 1248
1249 1249 /*
1250 1250 * IRE bucket structure. Usually there is an array of such structures,
1251 1251 * each pointing to a linked list of ires. irb_refcnt counts the number
1252 1252 * of walkers of a given hash bucket. Usually the reference count is
1253 1253 * bumped up if the walker wants no IRES to be DELETED while walking the
1254 1254 * list. Bumping up does not PREVENT ADDITION. This allows walking a given
1255 1255 * hash bucket without stumbling up on a free pointer.
1256 1256 *
1257 1257 * irb_t structures in ip_ftable are dynamically allocated and freed.
1258 1258 * In order to identify the irb_t structures that can be safely kmem_free'd
1259 1259 * we need to ensure that
1260 1260 * - the irb_refcnt is quiescent, indicating no other walkers,
1261 1261 * - no other threads or ire's are holding references to the irb,
1262 1262 * i.e., irb_nire == 0,
1263 1263 * - there are no active ire's in the bucket, i.e., irb_ire_cnt == 0
1264 1264 */
1265 1265 typedef struct irb {
1266 1266 struct ire_s *irb_ire; /* First ire in this bucket */
1267 1267 /* Should be first in this struct */
1268 1268 krwlock_t irb_lock; /* Protect this bucket */
1269 1269 uint_t irb_refcnt; /* Protected by irb_lock */
1270 1270 uchar_t irb_marks; /* CONDEMNED ires in this bucket ? */
1271 1271 #define IRB_MARK_CONDEMNED 0x0001 /* Contains some IRE_IS_CONDEMNED */
1272 1272 #define IRB_MARK_DYNAMIC 0x0002 /* Dynamically allocated */
1273 1273 /* Once IPv6 uses radix then IRB_MARK_DYNAMIC will be always be set */
1274 1274 uint_t irb_ire_cnt; /* Num of active IRE in this bucket */
1275 1275 int irb_nire; /* Num of ftable ire's that ref irb */
1276 1276 ip_stack_t *irb_ipst; /* Does not have a netstack_hold */
1277 1277 } irb_t;
1278 1278
1279 1279 /*
1280 1280 * This is the structure used to store the multicast physical addresses
1281 1281 * that an interface has joined.
1282 1282 * The refcnt keeps track of the number of multicast IP addresses mapping
1283 1283 * to a physical multicast address.
1284 1284 */
1285 1285 typedef struct multiphysaddr_s {
1286 1286 struct multiphysaddr_s *mpa_next;
1287 1287 char mpa_addr[IP_MAX_HW_LEN];
1288 1288 int mpa_refcnt;
1289 1289 } multiphysaddr_t;
1290 1290
1291 1291 #define IRB2RT(irb) (rt_t *)((caddr_t)(irb) - offsetof(rt_t, rt_irb))
1292 1292
1293 1293 /* Forward declarations */
1294 1294 struct dce_s;
1295 1295 typedef struct dce_s dce_t;
1296 1296 struct ire_s;
1297 1297 typedef struct ire_s ire_t;
1298 1298 struct ncec_s;
1299 1299 typedef struct ncec_s ncec_t;
1300 1300 struct nce_s;
1301 1301 typedef struct nce_s nce_t;
1302 1302 struct ip_recv_attr_s;
1303 1303 typedef struct ip_recv_attr_s ip_recv_attr_t;
1304 1304 struct ip_xmit_attr_s;
1305 1305 typedef struct ip_xmit_attr_s ip_xmit_attr_t;
1306 1306
1307 1307 struct tsol_ire_gw_secattr_s;
1308 1308 typedef struct tsol_ire_gw_secattr_s tsol_ire_gw_secattr_t;
1309 1309
1310 1310 /*
1311 1311 * This is a structure for a one-element route cache that is passed
1312 1312 * by reference between ip_input and ill_inputfn.
1313 1313 */
1314 1314 typedef struct {
1315 1315 ire_t *rtc_ire;
1316 1316 ipaddr_t rtc_ipaddr;
1317 1317 in6_addr_t rtc_ip6addr;
1318 1318 } rtc_t;
1319 1319
1320 1320 /*
1321 1321 * Note: Temporarily use 64 bits, and will probably go back to 32 bits after
1322 1322 * more cleanup work is done.
1323 1323 */
1324 1324 typedef uint64_t iaflags_t;
1325 1325
1326 1326 /* The ill input function pointer type */
1327 1327 typedef void (*pfillinput_t)(mblk_t *, void *, void *, ip_recv_attr_t *,
1328 1328 rtc_t *);
1329 1329
1330 1330 /* The ire receive function pointer type */
1331 1331 typedef void (*pfirerecv_t)(ire_t *, mblk_t *, void *, ip_recv_attr_t *);
1332 1332
1333 1333 /* The ire send and postfrag function pointer types */
1334 1334 typedef int (*pfiresend_t)(ire_t *, mblk_t *, void *,
1335 1335 ip_xmit_attr_t *, uint32_t *);
1336 1336 typedef int (*pfirepostfrag_t)(mblk_t *, nce_t *, iaflags_t, uint_t, uint32_t,
1337 1337 zoneid_t, zoneid_t, uintptr_t *);
1338 1338
1339 1339
1340 1340 #define IP_V4_G_HEAD 0
1341 1341 #define IP_V6_G_HEAD 1
1342 1342
1343 1343 #define MAX_G_HEADS 2
1344 1344
1345 1345 /*
1346 1346 * unpadded ill_if structure
1347 1347 */
1348 1348 struct _ill_if_s_ {
1349 1349 union ill_if_u *illif_next;
1350 1350 union ill_if_u *illif_prev;
1351 1351 avl_tree_t illif_avl_by_ppa; /* AVL tree sorted on ppa */
1352 1352 vmem_t *illif_ppa_arena; /* ppa index space */
1353 1353 uint16_t illif_mcast_v1; /* hints for */
1354 1354 uint16_t illif_mcast_v2; /* [igmp|mld]_slowtimo */
1355 1355 int illif_name_len; /* name length */
1356 1356 char illif_name[LIFNAMSIZ]; /* name of interface type */
1357 1357 };
1358 1358
1359 1359 /* cache aligned ill_if structure */
1360 1360 typedef union ill_if_u {
1361 1361 struct _ill_if_s_ ill_if_s;
1362 1362 char illif_filler[CACHE_ALIGN(_ill_if_s_)];
1363 1363 } ill_if_t;
1364 1364
1365 1365 #define illif_next ill_if_s.illif_next
1366 1366 #define illif_prev ill_if_s.illif_prev
1367 1367 #define illif_avl_by_ppa ill_if_s.illif_avl_by_ppa
1368 1368 #define illif_ppa_arena ill_if_s.illif_ppa_arena
1369 1369 #define illif_mcast_v1 ill_if_s.illif_mcast_v1
1370 1370 #define illif_mcast_v2 ill_if_s.illif_mcast_v2
1371 1371 #define illif_name ill_if_s.illif_name
1372 1372 #define illif_name_len ill_if_s.illif_name_len
1373 1373
1374 1374 typedef struct ill_walk_context_s {
1375 1375 int ctx_current_list; /* current list being searched */
1376 1376 int ctx_last_list; /* last list to search */
1377 1377 } ill_walk_context_t;
1378 1378
1379 1379 /*
1380 1380 * ill_g_heads structure, one for IPV4 and one for IPV6
1381 1381 */
1382 1382 struct _ill_g_head_s_ {
1383 1383 ill_if_t *ill_g_list_head;
1384 1384 ill_if_t *ill_g_list_tail;
1385 1385 };
1386 1386
1387 1387 typedef union ill_g_head_u {
1388 1388 struct _ill_g_head_s_ ill_g_head_s;
1389 1389 char ill_g_head_filler[CACHE_ALIGN(_ill_g_head_s_)];
1390 1390 } ill_g_head_t;
1391 1391
1392 1392 #define ill_g_list_head ill_g_head_s.ill_g_list_head
1393 1393 #define ill_g_list_tail ill_g_head_s.ill_g_list_tail
1394 1394
1395 1395 #define IP_V4_ILL_G_LIST(ipst) \
1396 1396 (ipst)->ips_ill_g_heads[IP_V4_G_HEAD].ill_g_list_head
1397 1397 #define IP_V6_ILL_G_LIST(ipst) \
1398 1398 (ipst)->ips_ill_g_heads[IP_V6_G_HEAD].ill_g_list_head
1399 1399 #define IP_VX_ILL_G_LIST(i, ipst) \
1400 1400 (ipst)->ips_ill_g_heads[i].ill_g_list_head
1401 1401
1402 1402 #define ILL_START_WALK_V4(ctx_ptr, ipst) \
1403 1403 ill_first(IP_V4_G_HEAD, IP_V4_G_HEAD, ctx_ptr, ipst)
1404 1404 #define ILL_START_WALK_V6(ctx_ptr, ipst) \
1405 1405 ill_first(IP_V6_G_HEAD, IP_V6_G_HEAD, ctx_ptr, ipst)
1406 1406 #define ILL_START_WALK_ALL(ctx_ptr, ipst) \
1407 1407 ill_first(MAX_G_HEADS, MAX_G_HEADS, ctx_ptr, ipst)
1408 1408
1409 1409 /*
1410 1410 * Capabilities, possible flags for ill_capabilities.
1411 1411 */
1412 1412 #define ILL_CAPAB_LSO 0x04 /* Large Send Offload */
1413 1413 #define ILL_CAPAB_HCKSUM 0x08 /* Hardware checksumming */
1414 1414 #define ILL_CAPAB_ZEROCOPY 0x10 /* Zero-copy */
1415 1415 #define ILL_CAPAB_DLD 0x20 /* DLD capabilities */
1416 1416 #define ILL_CAPAB_DLD_POLL 0x40 /* Polling */
1417 1417 #define ILL_CAPAB_DLD_DIRECT 0x80 /* Direct function call */
1418 1418 #define ILL_CAPAB_DLD_IPCHECK 0x100 /* Check if IPs are permitted */
1419 1419
1420 1420 /*
1421 1421 * Per-ill Hardware Checksumming capbilities.
1422 1422 */
1423 1423 typedef struct ill_hcksum_capab_s ill_hcksum_capab_t;
1424 1424
1425 1425 /*
1426 1426 * Per-ill Zero-copy capabilities.
1427 1427 */
1428 1428 typedef struct ill_zerocopy_capab_s ill_zerocopy_capab_t;
1429 1429
1430 1430 /*
1431 1431 * DLD capbilities.
1432 1432 */
1433 1433 typedef struct ill_dld_capab_s ill_dld_capab_t;
1434 1434
1435 1435 /*
1436 1436 * Per-ill polling resource map.
1437 1437 */
1438 1438 typedef struct ill_rx_ring ill_rx_ring_t;
1439 1439
1440 1440 /*
1441 1441 * Per-ill Large Send Offload capabilities.
1442 1442 */
1443 1443 typedef struct ill_lso_capab_s ill_lso_capab_t;
1444 1444
1445 1445 /* The following are ill_state_flags */
1446 1446 #define ILL_LL_SUBNET_PENDING 0x01 /* Waiting for DL_INFO_ACK from drv */
1447 1447 #define ILL_CONDEMNED 0x02 /* No more new ref's to the ILL */
1448 1448 #define ILL_DL_UNBIND_IN_PROGRESS 0x04 /* UNBIND_REQ is sent */
1449 1449 /*
1450 1450 * ILL_DOWN_IN_PROGRESS is set to ensure the following:
1451 1451 * - no packets are sent to the driver after the DL_UNBIND_REQ is sent,
1452 1452 * - no longstanding references will be acquired on objects that are being
1453 1453 * brought down.
1454 1454 */
1455 1455 #define ILL_DOWN_IN_PROGRESS 0x08
1456 1456
1457 1457 /* Is this an ILL whose source address is used by other ILL's ? */
1458 1458 #define IS_USESRC_ILL(ill) \
1459 1459 (((ill)->ill_usesrc_ifindex == 0) && \
1460 1460 ((ill)->ill_usesrc_grp_next != NULL))
1461 1461
1462 1462 /* Is this a client/consumer of the usesrc ILL ? */
1463 1463 #define IS_USESRC_CLI_ILL(ill) \
1464 1464 (((ill)->ill_usesrc_ifindex != 0) && \
1465 1465 ((ill)->ill_usesrc_grp_next != NULL))
1466 1466
1467 1467 /* Is this an virtual network interface (vni) ILL ? */
1468 1468 #define IS_VNI(ill) \
1469 1469 (((ill)->ill_phyint->phyint_flags & (PHYI_LOOPBACK|PHYI_VIRTUAL)) == \
1470 1470 PHYI_VIRTUAL)
1471 1471
1472 1472 /* Is this a loopback ILL? */
1473 1473 #define IS_LOOPBACK(ill) \
1474 1474 ((ill)->ill_phyint->phyint_flags & PHYI_LOOPBACK)
1475 1475
1476 1476 /* Is this an IPMP meta-interface ILL? */
1477 1477 #define IS_IPMP(ill) \
1478 1478 ((ill)->ill_phyint->phyint_flags & PHYI_IPMP)
1479 1479
1480 1480 /* Is this ILL under an IPMP meta-interface? (aka "in a group?") */
1481 1481 #define IS_UNDER_IPMP(ill) \
1482 1482 ((ill)->ill_grp != NULL && !IS_IPMP(ill))
1483 1483
1484 1484 /* Is ill1 in the same illgrp as ill2? */
1485 1485 #define IS_IN_SAME_ILLGRP(ill1, ill2) \
1486 1486 ((ill1)->ill_grp != NULL && ((ill1)->ill_grp == (ill2)->ill_grp))
1487 1487
1488 1488 /* Is ill1 on the same LAN as ill2? */
1489 1489 #define IS_ON_SAME_LAN(ill1, ill2) \
1490 1490 ((ill1) == (ill2) || IS_IN_SAME_ILLGRP(ill1, ill2))
1491 1491
1492 1492 #define ILL_OTHER(ill) \
1493 1493 ((ill)->ill_isv6 ? (ill)->ill_phyint->phyint_illv4 : \
1494 1494 (ill)->ill_phyint->phyint_illv6)
1495 1495
1496 1496 /*
1497 1497 * IPMP group ILL state structure -- up to two per IPMP group (V4 and V6).
1498 1498 * Created when the V4 and/or V6 IPMP meta-interface is I_PLINK'd. It is
1499 1499 * guaranteed to persist while there are interfaces of that type in the group.
1500 1500 * In general, most fields are accessed outside of the IPSQ (e.g., in the
1501 1501 * datapath), and thus use locks in addition to the IPSQ for protection.
1502 1502 *
1503 1503 * synchronization: read write
1504 1504 *
1505 1505 * ig_if ipsq or ill_g_lock ipsq and ill_g_lock
1506 1506 * ig_actif ipsq or ipmp_lock ipsq and ipmp_lock
1507 1507 * ig_nactif ipsq or ipmp_lock ipsq and ipmp_lock
1508 1508 * ig_next_ill ipsq or ipmp_lock ipsq and ipmp_lock
1509 1509 * ig_ipmp_ill write once write once
1510 1510 * ig_cast_ill ipsq or ipmp_lock ipsq and ipmp_lock
1511 1511 * ig_arpent ipsq ipsq
1512 1512 * ig_mtu ipsq ipsq
1513 1513 * ig_mc_mtu ipsq ipsq
1514 1514 */
1515 1515 typedef struct ipmp_illgrp_s {
1516 1516 list_t ig_if; /* list of all interfaces */
1517 1517 list_t ig_actif; /* list of active interfaces */
1518 1518 uint_t ig_nactif; /* number of active interfaces */
1519 1519 struct ill_s *ig_next_ill; /* next active interface to use */
1520 1520 struct ill_s *ig_ipmp_ill; /* backpointer to IPMP meta-interface */
1521 1521 struct ill_s *ig_cast_ill; /* nominated ill for multi/broadcast */
1522 1522 list_t ig_arpent; /* list of ARP entries */
1523 1523 uint_t ig_mtu; /* ig_ipmp_ill->ill_mtu */
1524 1524 uint_t ig_mc_mtu; /* ig_ipmp_ill->ill_mc_mtu */
1525 1525 } ipmp_illgrp_t;
1526 1526
1527 1527 /*
1528 1528 * IPMP group state structure -- one per IPMP group. Created when the
1529 1529 * IPMP meta-interface is plumbed; it is guaranteed to persist while there
1530 1530 * are interfaces in it.
1531 1531 *
1532 1532 * ipmp_grp_t synchronization: read write
1533 1533 *
1534 1534 * gr_name ipmp_lock ipmp_lock
1535 1535 * gr_ifname write once write once
1536 1536 * gr_mactype ipmp_lock ipmp_lock
1537 1537 * gr_phyint write once write once
1538 1538 * gr_nif ipmp_lock ipmp_lock
1539 1539 * gr_nactif ipsq ipsq
1540 1540 * gr_v4 ipmp_lock ipmp_lock
1541 1541 * gr_v6 ipmp_lock ipmp_lock
1542 1542 * gr_nv4 ipmp_lock ipmp_lock
1543 1543 * gr_nv6 ipmp_lock ipmp_lock
1544 1544 * gr_pendv4 ipmp_lock ipmp_lock
1545 1545 * gr_pendv6 ipmp_lock ipmp_lock
1546 1546 * gr_linkdownmp ipsq ipsq
1547 1547 * gr_ksp ipmp_lock ipmp_lock
1548 1548 * gr_kstats0 atomic atomic
1549 1549 */
1550 1550 typedef struct ipmp_grp_s {
1551 1551 char gr_name[LIFGRNAMSIZ]; /* group name */
1552 1552 char gr_ifname[LIFNAMSIZ]; /* interface name */
1553 1553 t_uscalar_t gr_mactype; /* DLPI mactype of group */
1554 1554 phyint_t *gr_phyint; /* IPMP group phyint */
1555 1555 uint_t gr_nif; /* number of interfaces in group */
1556 1556 uint_t gr_nactif; /* number of active interfaces */
1557 1557 ipmp_illgrp_t *gr_v4; /* V4 group information */
1558 1558 ipmp_illgrp_t *gr_v6; /* V6 group information */
1559 1559 uint_t gr_nv4; /* number of ills in V4 group */
1560 1560 uint_t gr_nv6; /* number of ills in V6 group */
1561 1561 uint_t gr_pendv4; /* number of pending ills in V4 group */
1562 1562 uint_t gr_pendv6; /* number of pending ills in V6 group */
1563 1563 mblk_t *gr_linkdownmp; /* message used to bring link down */
1564 1564 kstat_t *gr_ksp; /* group kstat pointer */
1565 1565 uint64_t gr_kstats0[IPMP_KSTAT_MAX]; /* baseline group kstats */
1566 1566 } ipmp_grp_t;
1567 1567
1568 1568 /*
1569 1569 * IPMP ARP entry -- one per SIOCS*ARP entry tied to the group. Used to keep
1570 1570 * ARP up-to-date as the active set of interfaces in the group changes.
1571 1571 */
1572 1572 typedef struct ipmp_arpent_s {
1573 1573 ipaddr_t ia_ipaddr; /* IP address for this entry */
1574 1574 boolean_t ia_proxyarp; /* proxy ARP entry? */
1575 1575 boolean_t ia_notified; /* ARP notified about this entry? */
1576 1576 list_node_t ia_node; /* next ARP entry in list */
1577 1577 uint16_t ia_flags; /* nce_flags for the address */
1578 1578 size_t ia_lladdr_len;
1579 1579 uchar_t *ia_lladdr;
1580 1580 } ipmp_arpent_t;
1581 1581
1582 1582 struct arl_s;
1583 1583
1584 1584 /*
1585 1585 * Per-ill capabilities.
1586 1586 */
1587 1587 struct ill_hcksum_capab_s {
1588 1588 uint_t ill_hcksum_version; /* interface version */
1589 1589 uint_t ill_hcksum_txflags; /* capabilities on transmit */
1590 1590 };
1591 1591
1592 1592 struct ill_zerocopy_capab_s {
1593 1593 uint_t ill_zerocopy_version; /* interface version */
1594 1594 uint_t ill_zerocopy_flags; /* capabilities */
1595 1595 };
1596 1596
1597 1597 struct ill_lso_capab_s {
1598 1598 uint_t ill_lso_flags; /* capabilities */
1599 1599 uint_t ill_lso_max; /* maximum size of payload */
1600 1600 };
1601 1601
1602 1602 /*
1603 1603 * IP Lower level Structure.
1604 1604 * Instance data structure in ip_open when there is a device below us.
1605 1605 */
1606 1606 typedef struct ill_s {
1607 1607 pfillinput_t ill_inputfn; /* Fast input function selector */
1608 1608 ill_if_t *ill_ifptr; /* pointer to interface type */
1609 1609 queue_t *ill_rq; /* Read queue. */
1610 1610 queue_t *ill_wq; /* Write queue. */
1611 1611
1612 1612 int ill_error; /* Error value sent up by device. */
1613 1613
1614 1614 ipif_t *ill_ipif; /* Interface chain for this ILL. */
1615 1615
1616 1616 uint_t ill_ipif_up_count; /* Number of IPIFs currently up. */
1617 1617 uint_t ill_max_frag; /* Max IDU from DLPI. */
1618 1618 uint_t ill_current_frag; /* Current IDU from DLPI. */
1619 1619 uint_t ill_mtu; /* User-specified MTU; SIOCSLIFMTU */
1620 1620 uint_t ill_mc_mtu; /* MTU for multi/broadcast */
1621 1621 uint_t ill_metric; /* BSD if metric, for compatibility. */
1622 1622 char *ill_name; /* Our name. */
1623 1623 uint_t ill_ipif_dup_count; /* Number of duplicate addresses. */
1624 1624 uint_t ill_name_length; /* Name length, incl. terminator. */
1625 1625 uint_t ill_net_type; /* IRE_IF_RESOLVER/IRE_IF_NORESOLVER. */
1626 1626 /*
1627 1627 * Physical Point of Attachment num. If DLPI style 1 provider
1628 1628 * then this is derived from the devname.
1629 1629 */
1630 1630 uint_t ill_ppa;
1631 1631 t_uscalar_t ill_sap;
1632 1632 t_scalar_t ill_sap_length; /* Including sign (for position) */
1633 1633 uint_t ill_phys_addr_length; /* Excluding the sap. */
1634 1634 uint_t ill_bcast_addr_length; /* Only set when the DL provider */
1635 1635 /* supports broadcast. */
1636 1636 t_uscalar_t ill_mactype;
1637 1637 uint8_t *ill_frag_ptr; /* Reassembly state. */
1638 1638 timeout_id_t ill_frag_timer_id; /* timeout id for the frag timer */
1639 1639 ipfb_t *ill_frag_hash_tbl; /* Fragment hash list head. */
1640 1640
1641 1641 krwlock_t ill_mcast_lock; /* Protects multicast state */
1642 1642 kmutex_t ill_mcast_serializer; /* Serialize across ilg and ilm state */
1643 1643 ilm_t *ill_ilm; /* Multicast membership for ill */
1644 1644 uint_t ill_global_timer; /* for IGMPv3/MLDv2 general queries */
1645 1645 int ill_mcast_type; /* type of router which is querier */
1646 1646 /* on this interface */
1647 1647 uint16_t ill_mcast_v1_time; /* # slow timeouts since last v1 qry */
1648 1648 uint16_t ill_mcast_v2_time; /* # slow timeouts since last v2 qry */
1649 1649 uint8_t ill_mcast_v1_tset; /* 1 => timer is set; 0 => not set */
1650 1650 uint8_t ill_mcast_v2_tset; /* 1 => timer is set; 0 => not set */
1651 1651
1652 1652 uint8_t ill_mcast_rv; /* IGMPv3/MLDv2 robustness variable */
1653 1653 int ill_mcast_qi; /* IGMPv3/MLDv2 query interval var */
1654 1654
1655 1655 /*
1656 1656 * All non-NULL cells between 'ill_first_mp_to_free' and
1657 1657 * 'ill_last_mp_to_free' are freed in ill_delete.
1658 1658 */
1659 1659 #define ill_first_mp_to_free ill_bcast_mp
1660 1660 mblk_t *ill_bcast_mp; /* DLPI header for broadcasts. */
1661 1661 mblk_t *ill_unbind_mp; /* unbind mp from ill_dl_up() */
1662 1662 mblk_t *ill_promiscoff_mp; /* for ill_leave_allmulti() */
1663 1663 mblk_t *ill_dlpi_deferred; /* b_next chain of control messages */
1664 1664 mblk_t *ill_dest_addr_mp; /* mblk which holds ill_dest_addr */
1665 1665 mblk_t *ill_replumb_mp; /* replumb mp from ill_replumb() */
1666 1666 mblk_t *ill_phys_addr_mp; /* mblk which holds ill_phys_addr */
1667 1667 mblk_t *ill_mcast_deferred; /* b_next chain of IGMP/MLD packets */
1668 1668 #define ill_last_mp_to_free ill_mcast_deferred
1669 1669
1670 1670 cred_t *ill_credp; /* opener's credentials */
1671 1671 uint8_t *ill_phys_addr; /* ill_phys_addr_mp->b_rptr + off */
1672 1672 uint8_t *ill_dest_addr; /* ill_dest_addr_mp->b_rptr + off */
1673 1673
1674 1674 uint_t ill_state_flags; /* see ILL_* flags above */
1675 1675
1676 1676 /* Following bit fields protected by ipsq_t */
1677 1677 uint_t
1678 1678 ill_needs_attach : 1,
1679 1679 ill_reserved : 1,
1680 1680 ill_isv6 : 1,
1681 1681 ill_dlpi_style_set : 1,
1682 1682
1683 1683 ill_ifname_pending : 1,
1684 1684 ill_logical_down : 1,
1685 1685 ill_dl_up : 1,
1686 1686 ill_up_ipifs : 1,
1687 1687
1688 1688 ill_note_link : 1, /* supports link-up notification */
1689 1689 ill_capab_reneg : 1, /* capability renegotiation to be done */
1690 1690 ill_dld_capab_inprog : 1, /* direct dld capab call in prog */
1691 1691 ill_need_recover_multicast : 1,
1692 1692
1693 1693 ill_replumbing : 1,
1694 1694 ill_arl_dlpi_pending : 1,
1695 1695 ill_grp_pending : 1,
1696 1696
1697 1697 ill_pad_to_bit_31 : 17;
1698 1698
1699 1699 /* Following bit fields protected by ill_lock */
1700 1700 uint_t
1701 1701 ill_fragtimer_executing : 1,
1702 1702 ill_fragtimer_needrestart : 1,
1703 1703 ill_manual_token : 1, /* system won't override ill_token */
1704 1704 /*
1705 1705 * ill_manual_linklocal : system will not change the
1706 1706 * linklocal whenever ill_token changes.
1707 1707 */
1708 1708 ill_manual_linklocal : 1,
1709 1709
1710 1710 ill_manual_dst_linklocal : 1, /* same for pt-pt dst linklocal */
1711 1711
1712 1712 ill_mcast_ncec_cleanup : 1, /* Reaping mcast ncecs. */
1713 1713 ill_pad_bit_31 : 26;
1714 1714
1715 1715 /*
1716 1716 * Used in SIOCSIFMUXID and SIOCGIFMUXID for 'ifconfig unplumb'.
1717 1717 */
1718 1718 int ill_muxid; /* muxid returned from plink */
1719 1719
1720 1720 /* Used for IP frag reassembly throttling on a per ILL basis. */
1721 1721 uint_t ill_ipf_gen; /* Generation of next fragment queue */
1722 1722 uint_t ill_frag_count; /* Count of all reassembly mblk bytes */
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1723 1723 uint_t ill_frag_free_num_pkts; /* num of fragmented packets to free */
1724 1724 clock_t ill_last_frag_clean_time; /* time when frag's were pruned */
1725 1725 int ill_type; /* From <net/if_types.h> */
1726 1726 uint_t ill_dlpi_multicast_state; /* See below IDS_* */
1727 1727 uint_t ill_dlpi_fastpath_state; /* See below IDS_* */
1728 1728
1729 1729 /*
1730 1730 * Capabilities related fields.
1731 1731 */
1732 1732 uint_t ill_dlpi_capab_state; /* State of capability query, IDCS_* */
1733 - kcondvar_t ill_dlpi_capab_cv; /* CV for broadcasting state changes */
1734 - kmutex_t ill_dlpi_capab_lock; /* Lock for accessing above Cond Var */
1735 1733 uint_t ill_capab_pending_cnt;
1736 1734 uint64_t ill_capabilities; /* Enabled capabilities, ILL_CAPAB_* */
1737 1735 ill_hcksum_capab_t *ill_hcksum_capab; /* H/W cksumming capabilities */
1738 1736 ill_zerocopy_capab_t *ill_zerocopy_capab; /* Zero-copy capabilities */
1739 1737 ill_dld_capab_t *ill_dld_capab; /* DLD capabilities */
1740 1738 ill_lso_capab_t *ill_lso_capab; /* Large Segment Offload capabilities */
1741 1739 mblk_t *ill_capab_reset_mp; /* Preallocated mblk for capab reset */
1742 1740
1743 1741 uint8_t ill_max_hops; /* Maximum hops for any logical interface */
1744 1742 uint_t ill_user_mtu; /* User-specified MTU via SIOCSLIFLNKINFO */
1745 1743 uint32_t ill_reachable_time; /* Value for ND algorithm in msec */
1746 1744 uint32_t ill_reachable_retrans_time; /* Value for ND algorithm msec */
1747 1745 uint_t ill_max_buf; /* Max # of req to buffer for ND */
1748 1746 in6_addr_t ill_token; /* IPv6 interface id */
1749 1747 in6_addr_t ill_dest_token; /* Destination IPv6 interface id */
1750 1748 uint_t ill_token_length;
1751 1749 uint32_t ill_xmit_count; /* ndp max multicast xmits */
1752 1750 mib2_ipIfStatsEntry_t *ill_ip_mib; /* ver indep. interface mib */
1753 1751 mib2_ipv6IfIcmpEntry_t *ill_icmp6_mib; /* Per interface mib */
1754 1752
1755 1753 phyint_t *ill_phyint;
1756 1754 uint64_t ill_flags;
1757 1755
1758 1756 kmutex_t ill_lock; /* Please see table below */
1759 1757 /*
1760 1758 * The ill_nd_lla* fields handle the link layer address option
1761 1759 * from neighbor discovery. This is used for external IPv6
1762 1760 * address resolution.
1763 1761 */
1764 1762 mblk_t *ill_nd_lla_mp; /* mblk which holds ill_nd_lla */
1765 1763 uint8_t *ill_nd_lla; /* Link Layer Address */
1766 1764 uint_t ill_nd_lla_len; /* Link Layer Address length */
1767 1765 /*
1768 1766 * We have 4 phys_addr_req's sent down. This field keeps track
1769 1767 * of which one is pending.
1770 1768 */
1771 1769 t_uscalar_t ill_phys_addr_pend; /* which dl_phys_addr_req pending */
1772 1770 /*
1773 1771 * Used to save errors that occur during plumbing
1774 1772 */
1775 1773 uint_t ill_ifname_pending_err;
1776 1774 /*
1777 1775 * Used to save errors that occur during binding
1778 1776 */
1779 1777 uint_t ill_dl_bind_err;
1780 1778 avl_node_t ill_avl_byppa; /* avl node based on ppa */
1781 1779 uint_t ill_mcast_nces; /* Number of NCEs that are multicast. */
1782 1780 list_t ill_nce; /* pointer to nce_s list */
1783 1781 uint_t ill_refcnt; /* active refcnt by threads */
1784 1782 uint_t ill_ire_cnt; /* ires associated with this ill */
1785 1783 kcondvar_t ill_cv;
1786 1784 uint_t ill_ncec_cnt; /* ncecs associated with this ill */
1787 1785 uint_t ill_nce_cnt; /* nces associated with this ill */
1788 1786 uint_t ill_waiters; /* threads waiting in ipsq_enter */
1789 1787 /*
1790 1788 * Contains the upper read queue pointer of the module immediately
1791 1789 * beneath IP. This field allows IP to validate sub-capability
1792 1790 * acknowledgments coming up from downstream.
1793 1791 */
1794 1792 queue_t *ill_lmod_rq; /* read queue pointer of module below */
1795 1793 uint_t ill_lmod_cnt; /* number of modules beneath IP */
1796 1794 ip_m_t *ill_media; /* media specific params/functions */
1797 1795 t_uscalar_t ill_dlpi_pending; /* Last DLPI primitive issued */
1798 1796 uint_t ill_usesrc_ifindex; /* use src addr from this ILL */
1799 1797 struct ill_s *ill_usesrc_grp_next; /* Next ILL in the usesrc group */
1800 1798 boolean_t ill_trace_disable; /* True when alloc fails */
1801 1799 zoneid_t ill_zoneid;
1802 1800 ip_stack_t *ill_ipst; /* Corresponds to a netstack_hold */
1803 1801 uint32_t ill_dhcpinit; /* IP_DHCPINIT_IFs for ill */
1804 1802 void *ill_flownotify_mh; /* Tx flow ctl, mac cb handle */
1805 1803 uint_t ill_ilm_cnt; /* ilms referencing this ill */
1806 1804 uint_t ill_ipallmulti_cnt; /* ip_join_allmulti() calls */
1807 1805 ilm_t *ill_ipallmulti_ilm;
1808 1806
1809 1807 mblk_t *ill_saved_ire_mp; /* Allocated for each extra IRE */
1810 1808 /* with ire_ill set so they can */
1811 1809 /* survive the ill going down and up. */
1812 1810 kmutex_t ill_saved_ire_lock; /* Protects ill_saved_ire_mp, cnt */
1813 1811 uint_t ill_saved_ire_cnt; /* # entries */
1814 1812 struct arl_ill_common_s *ill_common;
1815 1813 ire_t *ill_ire_multicast; /* IRE_MULTICAST for ill */
1816 1814 clock_t ill_defend_start; /* start of 1 hour period */
1817 1815 uint_t ill_defend_count; /* # of announce/defends per ill */
1818 1816 /*
1819 1817 * IPMP fields.
1820 1818 */
1821 1819 ipmp_illgrp_t *ill_grp; /* IPMP group information */
1822 1820 list_node_t ill_actnode; /* next active ill in group */
1823 1821 list_node_t ill_grpnode; /* next ill in group */
1824 1822 ipif_t *ill_src_ipif; /* source address selection rotor */
1825 1823 ipif_t *ill_move_ipif; /* ipif awaiting move to new ill */
1826 1824 boolean_t ill_nom_cast; /* nominated for mcast/bcast */
1827 1825 uint_t ill_bound_cnt; /* # of data addresses bound to ill */
1828 1826 ipif_t *ill_bound_ipif; /* ipif chain bound to ill */
1829 1827 timeout_id_t ill_refresh_tid; /* ill refresh retry timeout id */
1830 1828
1831 1829 uint32_t ill_mrouter_cnt; /* mrouter allmulti joins */
1832 1830 uint32_t ill_allowed_ips_cnt;
1833 1831 in6_addr_t *ill_allowed_ips;
1834 1832
1835 1833 /* list of multicast physical addresses joined on this ill */
1836 1834 multiphysaddr_t *ill_mphysaddr_list;
1837 1835 } ill_t;
1838 1836
1839 1837 /*
1840 1838 * ILL_FREE_OK() means that there are no incoming pointer references
1841 1839 * to the ill.
1842 1840 */
1843 1841 #define ILL_FREE_OK(ill) \
1844 1842 ((ill)->ill_ire_cnt == 0 && (ill)->ill_ilm_cnt == 0 && \
1845 1843 (ill)->ill_ncec_cnt == 0 && (ill)->ill_nce_cnt == 0)
1846 1844
1847 1845 /*
1848 1846 * An ipif/ill can be marked down only when the ire and ncec references
1849 1847 * to that ipif/ill goes to zero. ILL_DOWN_OK() is a necessary condition
1850 1848 * quiescence checks. See comments above IPIF_DOWN_OK for details
1851 1849 * on why ires and nces are selectively considered for this macro.
1852 1850 */
1853 1851 #define ILL_DOWN_OK(ill) \
1854 1852 (ill->ill_ire_cnt == 0 && ill->ill_ncec_cnt == 0 && \
1855 1853 ill->ill_nce_cnt == 0)
1856 1854
1857 1855 /*
1858 1856 * The following table lists the protection levels of the various members
1859 1857 * of the ill_t. Same notation as that used for ipif_t above is used.
1860 1858 *
1861 1859 * Write Read
1862 1860 *
1863 1861 * ill_ifptr ill_g_lock + s Write once
1864 1862 * ill_rq ipsq Write once
1865 1863 * ill_wq ipsq Write once
1866 1864 *
1867 1865 * ill_error ipsq None
1868 1866 * ill_ipif ill_g_lock + ipsq ill_g_lock OR ipsq
1869 1867 * ill_ipif_up_count ill_lock + ipsq ill_lock OR ipsq
1870 1868 * ill_max_frag ill_lock ill_lock
1871 1869 * ill_current_frag ill_lock ill_lock
1872 1870 *
1873 1871 * ill_name ill_g_lock + ipsq Write once
1874 1872 * ill_name_length ill_g_lock + ipsq Write once
1875 1873 * ill_ndd_name ipsq Write once
1876 1874 * ill_net_type ipsq Write once
1877 1875 * ill_ppa ill_g_lock + ipsq Write once
1878 1876 * ill_sap ipsq + down ill Write once
1879 1877 * ill_sap_length ipsq + down ill Write once
1880 1878 * ill_phys_addr_length ipsq + down ill Write once
1881 1879 *
1882 1880 * ill_bcast_addr_length ipsq ipsq
1883 1881 * ill_mactype ipsq ipsq
1884 1882 * ill_frag_ptr ipsq ipsq
1885 1883 *
1886 1884 * ill_frag_timer_id ill_lock ill_lock
1887 1885 * ill_frag_hash_tbl ipsq up ill
1888 1886 * ill_ilm ill_mcast_lock(WRITER) ill_mcast_lock(READER)
1889 1887 * ill_global_timer ill_mcast_lock(WRITER) ill_mcast_lock(READER)
1890 1888 * ill_mcast_type ill_mcast_lock(WRITER) ill_mcast_lock(READER)
1891 1889 * ill_mcast_v1_time ill_mcast_lock(WRITER) ill_mcast_lock(READER)
1892 1890 * ill_mcast_v2_time ill_mcast_lock(WRITER) ill_mcast_lock(READER)
1893 1891 * ill_mcast_v1_tset ill_mcast_lock(WRITER) ill_mcast_lock(READER)
1894 1892 * ill_mcast_v2_tset ill_mcast_lock(WRITER) ill_mcast_lock(READER)
1895 1893 * ill_mcast_rv ill_mcast_lock(WRITER) ill_mcast_lock(READER)
1896 1894 * ill_mcast_qi ill_mcast_lock(WRITER) ill_mcast_lock(READER)
1897 1895 *
1898 1896 * ill_down_mp ipsq ipsq
1899 1897 * ill_dlpi_deferred ill_lock ill_lock
1900 1898 * ill_dlpi_pending ipsq + ill_lock ipsq or ill_lock or
1901 1899 * absence of ipsq writer.
1902 1900 * ill_phys_addr_mp ipsq + down ill only when ill is up
1903 1901 * ill_mcast_deferred ill_lock ill_lock
1904 1902 * ill_phys_addr ipsq + down ill only when ill is up
1905 1903 * ill_dest_addr_mp ipsq + down ill only when ill is up
1906 1904 * ill_dest_addr ipsq + down ill only when ill is up
1907 1905 *
1908 1906 * ill_state_flags ill_lock ill_lock
1909 1907 * exclusive bit flags ipsq_t ipsq_t
1910 1908 * shared bit flags ill_lock ill_lock
1911 1909 *
1912 1910 * ill_muxid ipsq Not atomic
1913 1911 *
1914 1912 * ill_ipf_gen Not atomic
1915 1913 * ill_frag_count atomics atomics
1916 1914 * ill_type ipsq + down ill only when ill is up
1917 1915 * ill_dlpi_multicast_state ill_lock ill_lock
1918 1916 * ill_dlpi_fastpath_state ill_lock ill_lock
1919 1917 * ill_dlpi_capab_state ipsq ipsq
1920 1918 * ill_max_hops ipsq Not atomic
1921 1919 *
1922 1920 * ill_mtu ill_lock None
1923 1921 * ill_mc_mtu ill_lock None
1924 1922 *
1925 1923 * ill_user_mtu ipsq + ill_lock ill_lock
1926 1924 * ill_reachable_time ipsq + ill_lock ill_lock
1927 1925 * ill_reachable_retrans_time ipsq + ill_lock ill_lock
1928 1926 * ill_max_buf ipsq + ill_lock ill_lock
1929 1927 *
1930 1928 * Next 2 fields need ill_lock because of the get ioctls. They should not
1931 1929 * report partially updated results without executing in the ipsq.
1932 1930 * ill_token ipsq + ill_lock ill_lock
1933 1931 * ill_token_length ipsq + ill_lock ill_lock
1934 1932 * ill_dest_token ipsq + down ill only when ill is up
1935 1933 * ill_xmit_count ipsq + down ill write once
1936 1934 * ill_ip6_mib ipsq + down ill only when ill is up
1937 1935 * ill_icmp6_mib ipsq + down ill only when ill is up
1938 1936 *
1939 1937 * ill_phyint ipsq, ill_g_lock, ill_lock Any of them
1940 1938 * ill_flags ill_lock ill_lock
1941 1939 * ill_nd_lla_mp ipsq + down ill only when ill is up
1942 1940 * ill_nd_lla ipsq + down ill only when ill is up
1943 1941 * ill_nd_lla_len ipsq + down ill only when ill is up
1944 1942 * ill_phys_addr_pend ipsq + down ill only when ill is up
1945 1943 * ill_ifname_pending_err ipsq ipsq
1946 1944 * ill_dl_bind_err ipsq ipsq
1947 1945 * ill_avl_byppa ipsq, ill_g_lock write once
1948 1946 *
1949 1947 * ill_fastpath_list ill_lock ill_lock
1950 1948 * ill_refcnt ill_lock ill_lock
1951 1949 * ill_ire_cnt ill_lock ill_lock
1952 1950 * ill_cv ill_lock ill_lock
1953 1951 * ill_mcast_nces ill_lock ill_lock
1954 1952 * ill_ncec_cnt ill_lock ill_lock
1955 1953 * ill_nce_cnt ill_lock ill_lock
1956 1954 * ill_ilm_cnt ill_lock ill_lock
1957 1955 * ill_src_ipif ill_g_lock ill_g_lock
1958 1956 * ill_trace ill_lock ill_lock
1959 1957 * ill_usesrc_grp_next ill_g_usesrc_lock ill_g_usesrc_lock
1960 1958 * ill_dhcpinit atomics atomics
1961 1959 * ill_flownotify_mh write once write once
1962 1960 * ill_capab_pending_cnt ipsq ipsq
1963 1961 * ill_ipallmulti_cnt ill_lock ill_lock
1964 1962 * ill_ipallmulti_ilm ill_lock ill_lock
1965 1963 * ill_saved_ire_mp ill_saved_ire_lock ill_saved_ire_lock
1966 1964 * ill_saved_ire_cnt ill_saved_ire_lock ill_saved_ire_lock
1967 1965 * ill_arl ??? ???
1968 1966 * ill_ire_multicast ipsq + quiescent none
1969 1967 * ill_bound_ipif ipsq ipsq
1970 1968 * ill_actnode ipsq + ipmp_lock ipsq OR ipmp_lock
1971 1969 * ill_grpnode ipsq + ill_g_lock ipsq OR ill_g_lock
1972 1970 * ill_src_ipif ill_g_lock ill_g_lock
1973 1971 * ill_move_ipif ipsq ipsq
1974 1972 * ill_nom_cast ipsq ipsq OR advisory
1975 1973 * ill_refresh_tid ill_lock ill_lock
1976 1974 * ill_grp (for IPMP ill) write once write once
1977 1975 * ill_grp (for underlying ill) ipsq + ill_g_lock ipsq OR ill_g_lock
1978 1976 * ill_grp_pending ill_mcast_serializer ill_mcast_serializer
1979 1977 * ill_mrouter_cnt atomics atomics
1980 1978 * ill_mphysaddr_list ill_lock ill_lock
1981 1979 *
1982 1980 * NOTE: It's OK to make heuristic decisions on an underlying interface
1983 1981 * by using IS_UNDER_IPMP() or comparing ill_grp's raw pointer value.
1984 1982 */
1985 1983
1986 1984 /*
1987 1985 * For ioctl restart mechanism see ip_reprocess_ioctl()
1988 1986 */
1989 1987 struct ip_ioctl_cmd_s;
1990 1988
1991 1989 typedef int (*ifunc_t)(ipif_t *, struct sockaddr_in *, queue_t *, mblk_t *,
1992 1990 struct ip_ioctl_cmd_s *, void *);
1993 1991
1994 1992 typedef struct ip_ioctl_cmd_s {
1995 1993 int ipi_cmd;
1996 1994 size_t ipi_copyin_size;
1997 1995 uint_t ipi_flags;
1998 1996 uint_t ipi_cmd_type;
1999 1997 ifunc_t ipi_func;
2000 1998 ifunc_t ipi_func_restart;
2001 1999 } ip_ioctl_cmd_t;
2002 2000
2003 2001 /*
2004 2002 * ipi_cmd_type:
2005 2003 *
2006 2004 * IF_CMD 1 old style ifreq cmd
2007 2005 * LIF_CMD 2 new style lifreq cmd
2008 2006 * ARP_CMD 3 arpreq cmd
2009 2007 * XARP_CMD 4 xarpreq cmd
2010 2008 * MSFILT_CMD 5 multicast source filter cmd
2011 2009 * MISC_CMD 6 misc cmd (not a more specific one above)
2012 2010 */
2013 2011
2014 2012 enum { IF_CMD = 1, LIF_CMD, ARP_CMD, XARP_CMD, MSFILT_CMD, MISC_CMD };
2015 2013
2016 2014 #define IPI_DONTCARE 0 /* For ioctl encoded values that don't matter */
2017 2015
2018 2016 /* Flag values in ipi_flags */
2019 2017 #define IPI_PRIV 0x1 /* Root only command */
2020 2018 #define IPI_MODOK 0x2 /* Permitted on mod instance of IP */
2021 2019 #define IPI_WR 0x4 /* Need to grab writer access */
2022 2020 #define IPI_GET_CMD 0x8 /* branch to mi_copyout on success */
2023 2021 /* unused 0x10 */
2024 2022 #define IPI_NULL_BCONT 0x20 /* ioctl has not data and hence no b_cont */
2025 2023
2026 2024 extern ip_ioctl_cmd_t ip_ndx_ioctl_table[];
2027 2025 extern ip_ioctl_cmd_t ip_misc_ioctl_table[];
2028 2026 extern int ip_ndx_ioctl_count;
2029 2027 extern int ip_misc_ioctl_count;
2030 2028
2031 2029 /* Passed down by ARP to IP during I_PLINK/I_PUNLINK */
2032 2030 typedef struct ipmx_s {
2033 2031 char ipmx_name[LIFNAMSIZ]; /* if name */
2034 2032 uint_t
2035 2033 ipmx_arpdev_stream : 1, /* This is the arp stream */
2036 2034 ipmx_notused : 31;
2037 2035 } ipmx_t;
2038 2036
2039 2037 /*
2040 2038 * State for detecting if a driver supports certain features.
2041 2039 * Support for DL_ENABMULTI_REQ uses ill_dlpi_multicast_state.
2042 2040 * Support for DLPI M_DATA fastpath uses ill_dlpi_fastpath_state.
2043 2041 */
2044 2042 #define IDS_UNKNOWN 0 /* No DLPI request sent */
2045 2043 #define IDS_INPROGRESS 1 /* DLPI request sent */
2046 2044 #define IDS_OK 2 /* DLPI request completed successfully */
2047 2045 #define IDS_FAILED 3 /* DLPI request failed */
2048 2046
2049 2047 /* Support for DL_CAPABILITY_REQ uses ill_dlpi_capab_state. */
2050 2048 enum {
2051 2049 IDCS_UNKNOWN,
2052 2050 IDCS_PROBE_SENT,
2053 2051 IDCS_OK,
2054 2052 IDCS_RESET_SENT,
2055 2053 IDCS_RENEG,
2056 2054 IDCS_FAILED
2057 2055 };
2058 2056
2059 2057 /* Extended NDP Management Structure */
2060 2058 typedef struct ipndp_s {
2061 2059 ndgetf_t ip_ndp_getf;
2062 2060 ndsetf_t ip_ndp_setf;
2063 2061 caddr_t ip_ndp_data;
2064 2062 char *ip_ndp_name;
2065 2063 } ipndp_t;
2066 2064
2067 2065 /* IXA Notification types */
2068 2066 typedef enum {
2069 2067 IXAN_LSO, /* LSO capability change */
2070 2068 IXAN_PMTU, /* PMTU change */
2071 2069 IXAN_ZCOPY /* ZEROCOPY capability change */
2072 2070 } ixa_notify_type_t;
2073 2071
2074 2072 typedef uint_t ixa_notify_arg_t;
2075 2073
2076 2074 typedef void (*ixa_notify_t)(void *, ip_xmit_attr_t *ixa, ixa_notify_type_t,
2077 2075 ixa_notify_arg_t);
2078 2076
2079 2077 /*
2080 2078 * Attribute flags that are common to the transmit and receive attributes
2081 2079 */
2082 2080 #define IAF_IS_IPV4 0x80000000 /* ipsec_*_v4 */
2083 2081 #define IAF_TRUSTED_ICMP 0x40000000 /* ipsec_*_icmp_loopback */
2084 2082 #define IAF_NO_LOOP_ZONEID_SET 0x20000000 /* Zone that shouldn't have */
2085 2083 /* a copy */
2086 2084 #define IAF_LOOPBACK_COPY 0x10000000 /* For multi and broadcast */
2087 2085
2088 2086 #define IAF_MASK 0xf0000000 /* Flags that are common */
2089 2087
2090 2088 /*
2091 2089 * Transmit side attributes used between the transport protocols and IP as
2092 2090 * well as inside IP. It is also used to cache information in the conn_t i.e.
2093 2091 * replaces conn_ire and the IPsec caching in the conn_t.
2094 2092 */
2095 2093 struct ip_xmit_attr_s {
2096 2094 iaflags_t ixa_flags; /* IXAF_*. See below */
2097 2095
2098 2096 uint32_t ixa_free_flags; /* IXA_FREE_*. See below */
2099 2097 uint32_t ixa_refcnt; /* Using atomics */
2100 2098
2101 2099 /*
2102 2100 * Always initialized independently of ixa_flags settings.
2103 2101 * Used by ip_xmit so we keep them up front for cache locality.
2104 2102 */
2105 2103 uint32_t ixa_xmit_hint; /* For ECMP and GLD TX ring fanout */
2106 2104 uint_t ixa_pktlen; /* Always set. For frag and stats */
2107 2105 zoneid_t ixa_zoneid; /* Assumed always set */
2108 2106
2109 2107 /* Always set for conn_ip_output(); might be stale */
2110 2108 /*
2111 2109 * Since TCP keeps the conn_t around past the process going away
2112 2110 * we need to use the "notr" (e.g, ire_refhold_notr) for ixa_ire,
2113 2111 * ixa_nce, and ixa_dce.
2114 2112 */
2115 2113 ire_t *ixa_ire; /* Forwarding table entry */
2116 2114 uint_t ixa_ire_generation;
2117 2115 nce_t *ixa_nce; /* Neighbor cache entry */
2118 2116 dce_t *ixa_dce; /* Destination cache entry */
2119 2117 uint_t ixa_dce_generation;
2120 2118 uint_t ixa_src_generation; /* If IXAF_VERIFY_SOURCE */
2121 2119
2122 2120 uint32_t ixa_src_preferences; /* prefs for src addr select */
2123 2121 uint32_t ixa_pmtu; /* IXAF_VERIFY_PMTU */
2124 2122
2125 2123 /* Set by ULP if IXAF_VERIFY_PMTU; otherwise set by IP */
2126 2124 uint32_t ixa_fragsize;
2127 2125
2128 2126 int8_t ixa_use_min_mtu; /* IXAF_USE_MIN_MTU values */
2129 2127
2130 2128 pfirepostfrag_t ixa_postfragfn; /* Set internally in IP */
2131 2129
2132 2130 in6_addr_t ixa_nexthop_v6; /* IXAF_NEXTHOP_SET */
2133 2131 #define ixa_nexthop_v4 V4_PART_OF_V6(ixa_nexthop_v6)
2134 2132
2135 2133 zoneid_t ixa_no_loop_zoneid; /* IXAF_NO_LOOP_ZONEID_SET */
2136 2134
2137 2135 uint_t ixa_scopeid; /* For IPv6 link-locals */
2138 2136
2139 2137 uint_t ixa_broadcast_ttl; /* IXAF_BROACAST_TTL_SET */
2140 2138
2141 2139 uint_t ixa_multicast_ttl; /* Assumed set for multicast */
2142 2140 uint_t ixa_multicast_ifindex; /* Assumed set for multicast */
2143 2141 ipaddr_t ixa_multicast_ifaddr; /* Assumed set for multicast */
2144 2142
2145 2143 int ixa_raw_cksum_offset; /* If IXAF_SET_RAW_CKSUM */
2146 2144
2147 2145 uint32_t ixa_ident; /* For IPv6 fragment header */
2148 2146
2149 2147 uint64_t ixa_conn_id; /* Used by DTrace */
2150 2148 /*
2151 2149 * Cached LSO information.
2152 2150 */
2153 2151 ill_lso_capab_t ixa_lso_capab; /* Valid when IXAF_LSO_CAPAB */
2154 2152
2155 2153 uint64_t ixa_ipsec_policy_gen; /* Generation from iph_gen */
2156 2154 /*
2157 2155 * The following IPsec fields are only initialized when
2158 2156 * IXAF_IPSEC_SECURE is set. Otherwise they contain garbage.
2159 2157 */
2160 2158 ipsec_latch_t *ixa_ipsec_latch; /* Just the ids */
2161 2159 struct ipsa_s *ixa_ipsec_ah_sa; /* Hard reference SA for AH */
2162 2160 struct ipsa_s *ixa_ipsec_esp_sa; /* Hard reference SA for ESP */
2163 2161 struct ipsec_policy_s *ixa_ipsec_policy; /* why are we here? */
2164 2162 struct ipsec_action_s *ixa_ipsec_action; /* For reflected packets */
2165 2163 ipsa_ref_t ixa_ipsec_ref[2]; /* Soft reference to SA */
2166 2164 /* 0: ESP, 1: AH */
2167 2165
2168 2166 /*
2169 2167 * The selectors here are potentially different than the SPD rule's
2170 2168 * selectors, and we need to have both available for IKEv2.
2171 2169 *
2172 2170 * NOTE: "Source" and "Dest" are w.r.t. outbound datagrams. Ports can
2173 2171 * be zero, and the protocol number is needed to make the ports
2174 2172 * significant.
2175 2173 */
2176 2174 uint16_t ixa_ipsec_src_port; /* Source port number of d-gram. */
2177 2175 uint16_t ixa_ipsec_dst_port; /* Destination port number of d-gram. */
2178 2176 uint8_t ixa_ipsec_icmp_type; /* ICMP type of d-gram */
2179 2177 uint8_t ixa_ipsec_icmp_code; /* ICMP code of d-gram */
2180 2178
2181 2179 sa_family_t ixa_ipsec_inaf; /* Inner address family */
2182 2180 #define IXA_MAX_ADDRLEN 4 /* Max addr len. (in 32-bit words) */
2183 2181 uint32_t ixa_ipsec_insrc[IXA_MAX_ADDRLEN]; /* Inner src address */
2184 2182 uint32_t ixa_ipsec_indst[IXA_MAX_ADDRLEN]; /* Inner dest address */
2185 2183 uint8_t ixa_ipsec_insrcpfx; /* Inner source prefix */
2186 2184 uint8_t ixa_ipsec_indstpfx; /* Inner destination prefix */
2187 2185
2188 2186 uint8_t ixa_ipsec_proto; /* IP protocol number for d-gram. */
2189 2187
2190 2188 /* Always initialized independently of ixa_flags settings */
2191 2189 uint_t ixa_ifindex; /* Assumed always set */
2192 2190 uint16_t ixa_ip_hdr_length; /* Points to ULP header */
2193 2191 uint8_t ixa_protocol; /* Protocol number for ULP cksum */
2194 2192 ts_label_t *ixa_tsl; /* Always set. NULL if not TX */
2195 2193 ip_stack_t *ixa_ipst; /* Always set */
2196 2194 uint32_t ixa_extra_ident; /* Set if LSO */
2197 2195 cred_t *ixa_cred; /* For getpeerucred */
2198 2196 pid_t ixa_cpid; /* For getpeerucred */
2199 2197
2200 2198 #ifdef DEBUG
2201 2199 kthread_t *ixa_curthread; /* For serialization assert */
2202 2200 #endif
2203 2201 squeue_t *ixa_sqp; /* Set from conn_sqp as a hint */
2204 2202 uintptr_t ixa_cookie; /* cookie to use for tx flow control */
2205 2203
2206 2204 /*
2207 2205 * Must be set by ULP if any of IXAF_VERIFY_LSO, IXAF_VERIFY_PMTU,
2208 2206 * or IXAF_VERIFY_ZCOPY is set.
2209 2207 */
2210 2208 ixa_notify_t ixa_notify; /* Registered upcall notify function */
2211 2209 void *ixa_notify_cookie; /* ULP cookie for ixa_notify */
2212 2210
2213 2211 uint_t ixa_tcpcleanup; /* Used by conn_ixa_cleanup */
2214 2212 };
2215 2213
2216 2214 /*
2217 2215 * Flags to indicate which transmit attributes are set.
2218 2216 * Split into "xxx_SET" ones which indicate that the "xxx" field it set, and
2219 2217 * single flags.
2220 2218 */
2221 2219 #define IXAF_REACH_CONF 0x00000001 /* Reachability confirmation */
2222 2220 #define IXAF_BROADCAST_TTL_SET 0x00000002 /* ixa_broadcast_ttl valid */
2223 2221 #define IXAF_SET_SOURCE 0x00000004 /* Replace if broadcast */
2224 2222 #define IXAF_USE_MIN_MTU 0x00000008 /* IPV6_USE_MIN_MTU */
2225 2223
2226 2224 #define IXAF_DONTFRAG 0x00000010 /* IP*_DONTFRAG */
2227 2225 #define IXAF_VERIFY_PMTU 0x00000020 /* ixa_pmtu/ixa_fragsize set */
2228 2226 #define IXAF_PMTU_DISCOVERY 0x00000040 /* Create/use PMTU state */
2229 2227 #define IXAF_MULTICAST_LOOP 0x00000080 /* IP_MULTICAST_LOOP */
2230 2228
2231 2229 #define IXAF_IPSEC_SECURE 0x00000100 /* Need IPsec processing */
2232 2230 #define IXAF_UCRED_TSL 0x00000200 /* ixa_tsl from SCM_UCRED */
2233 2231 #define IXAF_DONTROUTE 0x00000400 /* SO_DONTROUTE */
2234 2232 #define IXAF_NO_IPSEC 0x00000800 /* Ignore policy */
2235 2233
2236 2234 #define IXAF_PMTU_TOO_SMALL 0x00001000 /* PMTU too small */
2237 2235 #define IXAF_SET_ULP_CKSUM 0x00002000 /* Calculate ULP checksum */
2238 2236 #define IXAF_VERIFY_SOURCE 0x00004000 /* Check that source is ok */
2239 2237 #define IXAF_NEXTHOP_SET 0x00008000 /* ixa_nexthop set */
2240 2238
2241 2239 #define IXAF_PMTU_IPV4_DF 0x00010000 /* Set IPv4 DF */
2242 2240 #define IXAF_NO_DEV_FLOW_CTL 0x00020000 /* Protocol needs no flow ctl */
2243 2241 #define IXAF_NO_TTL_CHANGE 0x00040000 /* Internal to IP */
2244 2242 #define IXAF_IPV6_ADD_FRAGHDR 0x00080000 /* Add fragment header */
2245 2243
2246 2244 #define IXAF_IPSEC_TUNNEL 0x00100000 /* Tunnel mode */
2247 2245 #define IXAF_NO_PFHOOK 0x00200000 /* Skip xmit pfhook */
2248 2246 #define IXAF_NO_TRACE 0x00400000 /* When back from ARP/ND */
2249 2247 #define IXAF_SCOPEID_SET 0x00800000 /* ixa_scopeid set */
2250 2248
2251 2249 #define IXAF_MULTIRT_MULTICAST 0x01000000 /* MULTIRT for multicast */
2252 2250 #define IXAF_NO_HW_CKSUM 0x02000000 /* Force software cksum */
2253 2251 #define IXAF_SET_RAW_CKSUM 0x04000000 /* Use ixa_raw_cksum_offset */
2254 2252 #define IXAF_IPSEC_GLOBAL_POLICY 0x08000000 /* Policy came from global */
2255 2253
2256 2254 /* Note the following uses bits 0x10000000 through 0x80000000 */
2257 2255 #define IXAF_IS_IPV4 IAF_IS_IPV4
2258 2256 #define IXAF_TRUSTED_ICMP IAF_TRUSTED_ICMP
2259 2257 #define IXAF_NO_LOOP_ZONEID_SET IAF_NO_LOOP_ZONEID_SET
2260 2258 #define IXAF_LOOPBACK_COPY IAF_LOOPBACK_COPY
2261 2259
2262 2260 /* Note: use the upper 32 bits */
2263 2261 #define IXAF_VERIFY_LSO 0x100000000 /* Check LSO capability */
2264 2262 #define IXAF_LSO_CAPAB 0x200000000 /* Capable of LSO */
2265 2263 #define IXAF_VERIFY_ZCOPY 0x400000000 /* Check Zero Copy capability */
2266 2264 #define IXAF_ZCOPY_CAPAB 0x800000000 /* Capable of ZEROCOPY */
2267 2265
2268 2266 /*
2269 2267 * The normal flags for sending packets e.g., icmp errors
2270 2268 */
2271 2269 #define IXAF_BASIC_SIMPLE_V4 \
2272 2270 (IXAF_SET_ULP_CKSUM | IXAF_IS_IPV4 | IXAF_VERIFY_SOURCE)
2273 2271 #define IXAF_BASIC_SIMPLE_V6 (IXAF_SET_ULP_CKSUM | IXAF_VERIFY_SOURCE)
2274 2272
2275 2273 /*
2276 2274 * Normally these fields do not have a hold. But in some cases they do, for
2277 2275 * instance when we've gone through ip_*_attr_to/from_mblk.
2278 2276 * We use ixa_free_flags to indicate that they have a hold and need to be
2279 2277 * released on cleanup.
2280 2278 */
2281 2279 #define IXA_FREE_CRED 0x00000001 /* ixa_cred needs to be rele */
2282 2280 #define IXA_FREE_TSL 0x00000002 /* ixa_tsl needs to be rele */
2283 2281
2284 2282 /*
2285 2283 * Trivial state machine used to synchronize IXA cleanup for TCP connections.
2286 2284 * See conn_ixa_cleanup().
2287 2285 */
2288 2286 #define IXATC_IDLE 0x00000000
2289 2287 #define IXATC_INPROGRESS 0x00000001
2290 2288 #define IXATC_COMPLETE 0x00000002
2291 2289
2292 2290 /*
2293 2291 * Simplistic way to set the ixa_xmit_hint for locally generated traffic
2294 2292 * and forwarded traffic. The shift amount are based on the size of the
2295 2293 * structs to discard the low order bits which don't have much if any variation
2296 2294 * (coloring in kmem_cache_alloc might provide some variation).
2297 2295 *
2298 2296 * Basing the locally generated hint on the address of the conn_t means that
2299 2297 * the packets from the same socket/connection do not get reordered.
2300 2298 * Basing the hint for forwarded traffic on the ill_ring_t means that
2301 2299 * packets from the same NIC+ring are likely to use the same outbound ring
2302 2300 * hence we get low contention on the ring in the transmitting driver.
2303 2301 */
2304 2302 #define CONN_TO_XMIT_HINT(connp) ((uint32_t)(((uintptr_t)connp) >> 11))
2305 2303 #define ILL_RING_TO_XMIT_HINT(ring) ((uint32_t)(((uintptr_t)ring) >> 7))
2306 2304
2307 2305 /*
2308 2306 * IP set Destination Flags used by function ip_set_destination,
2309 2307 * ip_attr_connect, and conn_connect.
2310 2308 */
2311 2309 #define IPDF_ALLOW_MCBC 0x1 /* Allow multi/broadcast */
2312 2310 #define IPDF_VERIFY_DST 0x2 /* Verify destination addr */
2313 2311 #define IPDF_SELECT_SRC 0x4 /* Select source address */
2314 2312 #define IPDF_LSO 0x8 /* Try LSO */
2315 2313 #define IPDF_IPSEC 0x10 /* Set IPsec policy */
2316 2314 #define IPDF_ZONE_IS_GLOBAL 0x20 /* From conn_zone_is_global */
2317 2315 #define IPDF_ZCOPY 0x40 /* Try ZEROCOPY */
2318 2316 #define IPDF_UNIQUE_DCE 0x80 /* Get a per-destination DCE */
2319 2317
2320 2318 /*
2321 2319 * Receive side attributes used between the transport protocols and IP as
2322 2320 * well as inside IP.
2323 2321 */
2324 2322 struct ip_recv_attr_s {
2325 2323 iaflags_t ira_flags; /* See below */
2326 2324
2327 2325 uint32_t ira_free_flags; /* IRA_FREE_*. See below */
2328 2326
2329 2327 /*
2330 2328 * This is a hint for TCP SYN packets.
2331 2329 * Always initialized independently of ira_flags settings
2332 2330 */
2333 2331 squeue_t *ira_sqp;
2334 2332 ill_rx_ring_t *ira_ring; /* Internal to IP */
2335 2333
2336 2334 /* For ip_accept_tcp when IRAF_TARGET_SQP is set */
2337 2335 squeue_t *ira_target_sqp;
2338 2336 mblk_t *ira_target_sqp_mp;
2339 2337
2340 2338 /* Always initialized independently of ira_flags settings */
2341 2339 uint32_t ira_xmit_hint; /* For ECMP and GLD TX ring fanout */
2342 2340 zoneid_t ira_zoneid; /* ALL_ZONES unless local delivery */
2343 2341 uint_t ira_pktlen; /* Always set. For frag and stats */
2344 2342 uint16_t ira_ip_hdr_length; /* Points to ULP header */
2345 2343 uint8_t ira_protocol; /* Protocol number for ULP cksum */
2346 2344 uint_t ira_rifindex; /* Received ifindex */
2347 2345 uint_t ira_ruifindex; /* Received upper ifindex */
2348 2346 ts_label_t *ira_tsl; /* Always set. NULL if not TX */
2349 2347 /*
2350 2348 * ira_rill and ira_ill is set inside IP, but not when conn_recv is
2351 2349 * called; ULPs should use ira_ruifindex instead.
2352 2350 */
2353 2351 ill_t *ira_rill; /* ill where packet came */
2354 2352 ill_t *ira_ill; /* ill where IP address hosted */
2355 2353 cred_t *ira_cred; /* For getpeerucred */
2356 2354 pid_t ira_cpid; /* For getpeerucred */
2357 2355
2358 2356 /* Used when IRAF_VERIFIED_SRC is set; this source was ok */
2359 2357 ipaddr_t ira_verified_src;
2360 2358
2361 2359 /*
2362 2360 * The following IPsec fields are only initialized when
2363 2361 * IRAF_IPSEC_SECURE is set. Otherwise they contain garbage.
2364 2362 */
2365 2363 struct ipsec_action_s *ira_ipsec_action; /* how we made it in.. */
2366 2364 struct ipsa_s *ira_ipsec_ah_sa; /* SA for AH */
2367 2365 struct ipsa_s *ira_ipsec_esp_sa; /* SA for ESP */
2368 2366
2369 2367 ipaddr_t ira_mroute_tunnel; /* IRAF_MROUTE_TUNNEL_SET */
2370 2368
2371 2369 zoneid_t ira_no_loop_zoneid; /* IRAF_NO_LOOP_ZONEID_SET */
2372 2370
2373 2371 uint32_t ira_esp_udp_ports; /* IRAF_ESP_UDP_PORTS */
2374 2372
2375 2373 /*
2376 2374 * For IP_RECVSLLA and ip_ndp_conflict/find_solicitation.
2377 2375 * Same size as max for sockaddr_dl
2378 2376 */
2379 2377 #define IRA_L2SRC_SIZE 244
2380 2378 uint8_t ira_l2src[IRA_L2SRC_SIZE]; /* If IRAF_L2SRC_SET */
2381 2379
2382 2380 /*
2383 2381 * Local handle that we use to do lazy setting of ira_l2src.
2384 2382 * We defer setting l2src until needed but we do before any
2385 2383 * ip_input pullupmsg or copymsg.
2386 2384 */
2387 2385 struct mac_header_info_s *ira_mhip; /* Could be NULL */
2388 2386 };
2389 2387
2390 2388 /*
2391 2389 * Flags to indicate which receive attributes are set.
2392 2390 */
2393 2391 #define IRAF_SYSTEM_LABELED 0x00000001 /* is_system_labeled() */
2394 2392 #define IRAF_IPV4_OPTIONS 0x00000002 /* Performance */
2395 2393 #define IRAF_MULTICAST 0x00000004 /* Was multicast at L3 */
2396 2394 #define IRAF_BROADCAST 0x00000008 /* Was broadcast at L3 */
2397 2395 #define IRAF_MULTIBROADCAST (IRAF_MULTICAST|IRAF_BROADCAST)
2398 2396
2399 2397 #define IRAF_LOOPBACK 0x00000010 /* Looped back by IP */
2400 2398 #define IRAF_VERIFY_IP_CKSUM 0x00000020 /* Need to verify IP */
2401 2399 #define IRAF_VERIFY_ULP_CKSUM 0x00000040 /* Need to verify TCP,UDP,etc */
2402 2400 #define IRAF_SCTP_CSUM_ERR 0x00000080 /* sctp pkt has failed chksum */
2403 2401
2404 2402 #define IRAF_IPSEC_SECURE 0x00000100 /* Passed AH and/or ESP */
2405 2403 #define IRAF_DHCP_UNICAST 0x00000200
2406 2404 #define IRAF_IPSEC_DECAPS 0x00000400 /* Was packet decapsulated */
2407 2405 /* from a matching inner packet? */
2408 2406 #define IRAF_TARGET_SQP 0x00000800 /* ira_target_sqp is set */
2409 2407 #define IRAF_VERIFIED_SRC 0x00001000 /* ira_verified_src set */
2410 2408 #define IRAF_RSVP 0x00002000 /* RSVP packet for rsvpd */
2411 2409 #define IRAF_MROUTE_TUNNEL_SET 0x00004000 /* From ip_mroute_decap */
2412 2410 #define IRAF_PIM_REGISTER 0x00008000 /* From register_mforward */
2413 2411
2414 2412 #define IRAF_TX_MAC_EXEMPTABLE 0x00010000 /* Allow MAC_EXEMPT readdown */
2415 2413 #define IRAF_TX_SHARED_ADDR 0x00020000 /* Arrived on ALL_ZONES addr */
2416 2414 #define IRAF_ESP_UDP_PORTS 0x00040000 /* NAT-traversal packet */
2417 2415 #define IRAF_NO_HW_CKSUM 0x00080000 /* Force software cksum */
2418 2416
2419 2417 #define IRAF_ICMP_ERROR 0x00100000 /* Send to conn_recvicmp */
2420 2418 #define IRAF_ROUTER_ALERT 0x00200000 /* IPv6 router alert */
2421 2419 #define IRAF_L2SRC_SET 0x00400000 /* ira_l2src has been set */
2422 2420 #define IRAF_L2SRC_LOOPBACK 0x00800000 /* Came from us */
2423 2421
2424 2422 #define IRAF_L2DST_MULTICAST 0x01000000 /* Multicast at L2 */
2425 2423 #define IRAF_L2DST_BROADCAST 0x02000000 /* Broadcast at L2 */
2426 2424 /* Unused 0x04000000 */
2427 2425 /* Unused 0x08000000 */
2428 2426
2429 2427 /* Below starts with 0x10000000 */
2430 2428 #define IRAF_IS_IPV4 IAF_IS_IPV4
2431 2429 #define IRAF_TRUSTED_ICMP IAF_TRUSTED_ICMP
2432 2430 #define IRAF_NO_LOOP_ZONEID_SET IAF_NO_LOOP_ZONEID_SET
2433 2431 #define IRAF_LOOPBACK_COPY IAF_LOOPBACK_COPY
2434 2432
2435 2433 /*
2436 2434 * Normally these fields do not have a hold. But in some cases they do, for
2437 2435 * instance when we've gone through ip_*_attr_to/from_mblk.
2438 2436 * We use ira_free_flags to indicate that they have a hold and need to be
2439 2437 * released on cleanup.
2440 2438 */
2441 2439 #define IRA_FREE_CRED 0x00000001 /* ira_cred needs to be rele */
2442 2440 #define IRA_FREE_TSL 0x00000002 /* ira_tsl needs to be rele */
2443 2441
2444 2442 /*
2445 2443 * Optional destination cache entry for path MTU information,
2446 2444 * and ULP metrics.
2447 2445 */
2448 2446 struct dce_s {
2449 2447 uint_t dce_generation; /* Changed since cached? */
2450 2448 uint_t dce_flags; /* See below */
2451 2449 uint_t dce_ipversion; /* IPv4/IPv6 version */
2452 2450 uint32_t dce_pmtu; /* Path MTU if DCEF_PMTU */
2453 2451 uint32_t dce_ident; /* Per destination IP ident. */
2454 2452 iulp_t dce_uinfo; /* Metrics if DCEF_UINFO */
2455 2453
2456 2454 struct dce_s *dce_next;
2457 2455 struct dce_s **dce_ptpn;
2458 2456 struct dcb_s *dce_bucket;
2459 2457
2460 2458 union {
2461 2459 in6_addr_t dceu_v6addr;
2462 2460 ipaddr_t dceu_v4addr;
2463 2461 } dce_u;
2464 2462 #define dce_v4addr dce_u.dceu_v4addr
2465 2463 #define dce_v6addr dce_u.dceu_v6addr
2466 2464 /* Note that for IPv6+IPMP we use the ifindex for the upper interface */
2467 2465 uint_t dce_ifindex; /* For IPv6 link-locals */
2468 2466
2469 2467 kmutex_t dce_lock;
2470 2468 uint_t dce_refcnt;
2471 2469 uint64_t dce_last_change_time; /* Path MTU. In seconds */
2472 2470
2473 2471 ip_stack_t *dce_ipst; /* Does not have a netstack_hold */
2474 2472 };
2475 2473
2476 2474 /*
2477 2475 * Values for dce_generation.
2478 2476 *
2479 2477 * If a DCE has DCE_GENERATION_CONDEMNED, the last dce_refrele should delete
2480 2478 * it.
2481 2479 *
2482 2480 * DCE_GENERATION_VERIFY is never stored in dce_generation but it is
2483 2481 * stored in places that cache DCE (such as ixa_dce_generation).
2484 2482 * It is used as a signal that the cache is stale and needs to be reverified.
2485 2483 */
2486 2484 #define DCE_GENERATION_CONDEMNED 0
2487 2485 #define DCE_GENERATION_VERIFY 1
2488 2486 #define DCE_GENERATION_INITIAL 2
2489 2487 #define DCE_IS_CONDEMNED(dce) \
2490 2488 ((dce)->dce_generation == DCE_GENERATION_CONDEMNED)
2491 2489
2492 2490
2493 2491 /*
2494 2492 * Values for ips_src_generation.
2495 2493 *
2496 2494 * SRC_GENERATION_VERIFY is never stored in ips_src_generation but it is
2497 2495 * stored in places that cache IREs (ixa_src_generation). It is used as a
2498 2496 * signal that the cache is stale and needs to be reverified.
2499 2497 */
2500 2498 #define SRC_GENERATION_VERIFY 0
2501 2499 #define SRC_GENERATION_INITIAL 1
2502 2500
2503 2501 /*
2504 2502 * The kernel stores security attributes of all gateways in a database made
2505 2503 * up of one or more tsol_gcdb_t elements. Each tsol_gcdb_t contains the
2506 2504 * security-related credentials of the gateway. More than one gateways may
2507 2505 * share entries in the database.
2508 2506 *
2509 2507 * The tsol_gc_t structure represents the gateway to credential association,
2510 2508 * and refers to an entry in the database. One or more tsol_gc_t entities are
2511 2509 * grouped together to form one or more tsol_gcgrp_t, each representing the
2512 2510 * list of security attributes specific to the gateway. A gateway may be
2513 2511 * associated with at most one credentials group.
2514 2512 */
2515 2513 struct tsol_gcgrp_s;
2516 2514
2517 2515 extern uchar_t ip6opt_ls; /* TX IPv6 enabler */
2518 2516
2519 2517 /*
2520 2518 * Gateway security credential record.
2521 2519 */
2522 2520 typedef struct tsol_gcdb_s {
2523 2521 uint_t gcdb_refcnt; /* reference count */
2524 2522 struct rtsa_s gcdb_attr; /* security attributes */
2525 2523 #define gcdb_mask gcdb_attr.rtsa_mask
2526 2524 #define gcdb_doi gcdb_attr.rtsa_doi
2527 2525 #define gcdb_slrange gcdb_attr.rtsa_slrange
2528 2526 } tsol_gcdb_t;
2529 2527
2530 2528 /*
2531 2529 * Gateway to credential association.
2532 2530 */
2533 2531 typedef struct tsol_gc_s {
2534 2532 uint_t gc_refcnt; /* reference count */
2535 2533 struct tsol_gcgrp_s *gc_grp; /* pointer to group */
2536 2534 struct tsol_gc_s *gc_prev; /* previous in list */
2537 2535 struct tsol_gc_s *gc_next; /* next in list */
2538 2536 tsol_gcdb_t *gc_db; /* pointer to actual credentials */
2539 2537 } tsol_gc_t;
2540 2538
2541 2539 /*
2542 2540 * Gateway credentials group address.
2543 2541 */
2544 2542 typedef struct tsol_gcgrp_addr_s {
2545 2543 int ga_af; /* address family */
2546 2544 in6_addr_t ga_addr; /* IPv4 mapped or IPv6 address */
2547 2545 } tsol_gcgrp_addr_t;
2548 2546
2549 2547 /*
2550 2548 * Gateway credentials group.
2551 2549 */
2552 2550 typedef struct tsol_gcgrp_s {
2553 2551 uint_t gcgrp_refcnt; /* reference count */
2554 2552 krwlock_t gcgrp_rwlock; /* lock to protect following */
2555 2553 uint_t gcgrp_count; /* number of credentials */
2556 2554 tsol_gc_t *gcgrp_head; /* first credential in list */
2557 2555 tsol_gc_t *gcgrp_tail; /* last credential in list */
2558 2556 tsol_gcgrp_addr_t gcgrp_addr; /* next-hop gateway address */
2559 2557 } tsol_gcgrp_t;
2560 2558
2561 2559 extern kmutex_t gcgrp_lock;
2562 2560
2563 2561 #define GC_REFRELE(p) { \
2564 2562 ASSERT((p)->gc_grp != NULL); \
2565 2563 rw_enter(&(p)->gc_grp->gcgrp_rwlock, RW_WRITER); \
2566 2564 ASSERT((p)->gc_refcnt > 0); \
2567 2565 if (--((p)->gc_refcnt) == 0) \
2568 2566 gc_inactive(p); \
2569 2567 else \
2570 2568 rw_exit(&(p)->gc_grp->gcgrp_rwlock); \
2571 2569 }
2572 2570
2573 2571 #define GCGRP_REFHOLD(p) { \
2574 2572 mutex_enter(&gcgrp_lock); \
2575 2573 ++((p)->gcgrp_refcnt); \
2576 2574 ASSERT((p)->gcgrp_refcnt != 0); \
2577 2575 mutex_exit(&gcgrp_lock); \
2578 2576 }
2579 2577
2580 2578 #define GCGRP_REFRELE(p) { \
2581 2579 mutex_enter(&gcgrp_lock); \
2582 2580 ASSERT((p)->gcgrp_refcnt > 0); \
2583 2581 if (--((p)->gcgrp_refcnt) == 0) \
2584 2582 gcgrp_inactive(p); \
2585 2583 ASSERT(MUTEX_HELD(&gcgrp_lock)); \
2586 2584 mutex_exit(&gcgrp_lock); \
2587 2585 }
2588 2586
2589 2587 /*
2590 2588 * IRE gateway security attributes structure, pointed to by tsol_ire_gw_secattr
2591 2589 */
2592 2590 struct tsol_tnrhc;
2593 2591
2594 2592 struct tsol_ire_gw_secattr_s {
2595 2593 kmutex_t igsa_lock; /* lock to protect following */
2596 2594 struct tsol_tnrhc *igsa_rhc; /* host entry for gateway */
2597 2595 tsol_gc_t *igsa_gc; /* for prefix IREs */
2598 2596 };
2599 2597
2600 2598 void irb_refrele_ftable(irb_t *);
2601 2599
2602 2600 extern struct kmem_cache *rt_entry_cache;
2603 2601
2604 2602 typedef struct ire4 {
2605 2603 ipaddr_t ire4_mask; /* Mask for matching this IRE. */
2606 2604 ipaddr_t ire4_addr; /* Address this IRE represents. */
2607 2605 ipaddr_t ire4_gateway_addr; /* Gateway including for IRE_ONLINK */
2608 2606 ipaddr_t ire4_setsrc_addr; /* RTF_SETSRC */
2609 2607 } ire4_t;
2610 2608
2611 2609 typedef struct ire6 {
2612 2610 in6_addr_t ire6_mask; /* Mask for matching this IRE. */
2613 2611 in6_addr_t ire6_addr; /* Address this IRE represents. */
2614 2612 in6_addr_t ire6_gateway_addr; /* Gateway including for IRE_ONLINK */
2615 2613 in6_addr_t ire6_setsrc_addr; /* RTF_SETSRC */
2616 2614 } ire6_t;
2617 2615
2618 2616 typedef union ire_addr {
2619 2617 ire6_t ire6_u;
2620 2618 ire4_t ire4_u;
2621 2619 } ire_addr_u_t;
2622 2620
2623 2621 /*
2624 2622 * Internet Routing Entry
2625 2623 * When we have multiple identical IREs we logically add them by manipulating
2626 2624 * ire_identical_ref and ire_delete first decrements
2627 2625 * that and when it reaches 1 we know it is the last IRE.
2628 2626 * "identical" is defined as being the same for:
2629 2627 * ire_addr, ire_netmask, ire_gateway, ire_ill, ire_zoneid, and ire_type
2630 2628 * For instance, multiple IRE_BROADCASTs for the same subnet number are
2631 2629 * viewed as identical, and so are the IRE_INTERFACEs when there are
2632 2630 * multiple logical interfaces (on the same ill) with the same subnet prefix.
2633 2631 */
2634 2632 struct ire_s {
2635 2633 struct ire_s *ire_next; /* The hash chain must be first. */
2636 2634 struct ire_s **ire_ptpn; /* Pointer to previous next. */
2637 2635 uint32_t ire_refcnt; /* Number of references */
2638 2636 ill_t *ire_ill;
2639 2637 uint32_t ire_identical_ref; /* IRE_INTERFACE, IRE_BROADCAST */
2640 2638 uchar_t ire_ipversion; /* IPv4/IPv6 version */
2641 2639 ushort_t ire_type; /* Type of IRE */
2642 2640 uint_t ire_generation; /* Generation including CONDEMNED */
2643 2641 uint_t ire_ib_pkt_count; /* Inbound packets for ire_addr */
2644 2642 uint_t ire_ob_pkt_count; /* Outbound packets to ire_addr */
2645 2643 time_t ire_create_time; /* Time (in secs) IRE was created. */
2646 2644 uint32_t ire_flags; /* flags related to route (RTF_*) */
2647 2645 /*
2648 2646 * ire_testhidden is TRUE for INTERFACE IREs of IS_UNDER_IPMP(ill)
2649 2647 * interfaces
2650 2648 */
2651 2649 boolean_t ire_testhidden;
2652 2650 pfirerecv_t ire_recvfn; /* Receive side handling */
2653 2651 pfiresend_t ire_sendfn; /* Send side handling */
2654 2652 pfirepostfrag_t ire_postfragfn; /* Bottom end of send handling */
2655 2653
2656 2654 uint_t ire_masklen; /* # bits in ire_mask{,_v6} */
2657 2655 ire_addr_u_t ire_u; /* IPv4/IPv6 address info. */
2658 2656
2659 2657 irb_t *ire_bucket; /* Hash bucket when ire_ptphn is set */
2660 2658 kmutex_t ire_lock;
2661 2659 clock_t ire_last_used_time; /* For IRE_LOCAL reception */
2662 2660 tsol_ire_gw_secattr_t *ire_gw_secattr; /* gateway security attributes */
2663 2661 zoneid_t ire_zoneid;
2664 2662
2665 2663 /*
2666 2664 * Cached information of where to send packets that match this route.
2667 2665 * The ire_dep_* information is used to determine when ire_nce_cache
2668 2666 * needs to be updated.
2669 2667 * ire_nce_cache is the fastpath for the Neighbor Cache Entry
2670 2668 * for IPv6; arp info for IPv4
2671 2669 * Since this is a cache setup and torn down independently of
2672 2670 * applications we need to use nce_ref{rele,hold}_notr for it.
2673 2671 */
2674 2672 nce_t *ire_nce_cache;
2675 2673
2676 2674 /*
2677 2675 * Quick check whether the ire_type and ire_masklen indicates
2678 2676 * that the IRE can have ire_nce_cache set i.e., whether it is
2679 2677 * IRE_ONLINK and for a single destination.
2680 2678 */
2681 2679 boolean_t ire_nce_capable;
2682 2680
2683 2681 /*
2684 2682 * Dependency tracking so we can safely cache IRE and NCE pointers
2685 2683 * in offlink and onlink IREs.
2686 2684 * These are locked under the ips_ire_dep_lock rwlock. Write held
2687 2685 * when modifying the linkage.
2688 2686 * ire_dep_parent (Also chain towards IRE for nexthop)
2689 2687 * ire_dep_parent_generation: ire_generation of ire_dep_parent
2690 2688 * ire_dep_children (From parent to first child)
2691 2689 * ire_dep_sib_next (linked list of siblings)
2692 2690 * ire_dep_sib_ptpn (linked list of siblings)
2693 2691 *
2694 2692 * The parent has a ire_refhold on each child, and each child has
2695 2693 * an ire_refhold on its parent.
2696 2694 * Since ire_dep_parent is a cache setup and torn down independently of
2697 2695 * applications we need to use ire_ref{rele,hold}_notr for it.
2698 2696 */
2699 2697 ire_t *ire_dep_parent;
2700 2698 ire_t *ire_dep_children;
2701 2699 ire_t *ire_dep_sib_next;
2702 2700 ire_t **ire_dep_sib_ptpn; /* Pointer to previous next */
2703 2701 uint_t ire_dep_parent_generation;
2704 2702
2705 2703 uint_t ire_badcnt; /* Number of times ND_UNREACHABLE */
2706 2704 uint64_t ire_last_badcnt; /* In seconds */
2707 2705
2708 2706 /* ire_defense* and ire_last_used_time are only used on IRE_LOCALs */
2709 2707 uint_t ire_defense_count; /* number of ARP conflicts */
2710 2708 uint_t ire_defense_time; /* last time defended (secs) */
2711 2709
2712 2710 boolean_t ire_trace_disable; /* True when alloc fails */
2713 2711 ip_stack_t *ire_ipst; /* Does not have a netstack_hold */
2714 2712 iulp_t ire_metrics;
2715 2713 /*
2716 2714 * default and prefix routes that are added without explicitly
2717 2715 * specifying the interface are termed "unbound" routes, and will
2718 2716 * have ire_unbound set to true.
2719 2717 */
2720 2718 boolean_t ire_unbound;
2721 2719 };
2722 2720
2723 2721 /* IPv4 compatibility macros */
2724 2722 #define ire_mask ire_u.ire4_u.ire4_mask
2725 2723 #define ire_addr ire_u.ire4_u.ire4_addr
2726 2724 #define ire_gateway_addr ire_u.ire4_u.ire4_gateway_addr
2727 2725 #define ire_setsrc_addr ire_u.ire4_u.ire4_setsrc_addr
2728 2726
2729 2727 #define ire_mask_v6 ire_u.ire6_u.ire6_mask
2730 2728 #define ire_addr_v6 ire_u.ire6_u.ire6_addr
2731 2729 #define ire_gateway_addr_v6 ire_u.ire6_u.ire6_gateway_addr
2732 2730 #define ire_setsrc_addr_v6 ire_u.ire6_u.ire6_setsrc_addr
2733 2731
2734 2732 /*
2735 2733 * Values for ire_generation.
2736 2734 *
2737 2735 * If an IRE is marked with IRE_IS_CONDEMNED, the last walker of
2738 2736 * the bucket should delete this IRE from this bucket.
2739 2737 *
2740 2738 * IRE_GENERATION_VERIFY is never stored in ire_generation but it is
2741 2739 * stored in places that cache IREs (such as ixa_ire_generation and
2742 2740 * ire_dep_parent_generation). It is used as a signal that the cache is
2743 2741 * stale and needs to be reverified.
2744 2742 */
2745 2743 #define IRE_GENERATION_CONDEMNED 0
2746 2744 #define IRE_GENERATION_VERIFY 1
2747 2745 #define IRE_GENERATION_INITIAL 2
2748 2746 #define IRE_IS_CONDEMNED(ire) \
2749 2747 ((ire)->ire_generation == IRE_GENERATION_CONDEMNED)
2750 2748
2751 2749 /* Convenient typedefs for sockaddrs */
2752 2750 typedef struct sockaddr_in sin_t;
2753 2751 typedef struct sockaddr_in6 sin6_t;
2754 2752
2755 2753 /* Name/Value Descriptor. */
2756 2754 typedef struct nv_s {
2757 2755 uint64_t nv_value;
2758 2756 char *nv_name;
2759 2757 } nv_t;
2760 2758
2761 2759 #define ILL_FRAG_HASH(s, i) \
2762 2760 ((ntohl(s) ^ ((i) ^ ((i) >> 8))) % ILL_FRAG_HASH_TBL_COUNT)
2763 2761
2764 2762 /*
2765 2763 * The MAX number of allowed fragmented packets per hash bucket
2766 2764 * calculation is based on the most common mtu size of 1500. This limit
2767 2765 * will work well for other mtu sizes as well.
2768 2766 */
2769 2767 #define COMMON_IP_MTU 1500
2770 2768 #define MAX_FRAG_MIN 10
2771 2769 #define MAX_FRAG_PKTS(ipst) \
2772 2770 MAX(MAX_FRAG_MIN, (2 * (ipst->ips_ip_reass_queue_bytes / \
2773 2771 (COMMON_IP_MTU * ILL_FRAG_HASH_TBL_COUNT))))
2774 2772
2775 2773 /*
2776 2774 * Maximum dups allowed per packet.
2777 2775 */
2778 2776 extern uint_t ip_max_frag_dups;
2779 2777
2780 2778 /*
2781 2779 * Per-packet information for received packets and transmitted.
2782 2780 * Used by the transport protocols when converting between the packet
2783 2781 * and ancillary data and socket options.
2784 2782 *
2785 2783 * Note: This private data structure and related IPPF_* constant
2786 2784 * definitions are exposed to enable compilation of some debugging tools
2787 2785 * like lsof which use struct tcp_t in <inet/tcp.h>. This is intended to be
2788 2786 * a temporary hack and long term alternate interfaces should be defined
2789 2787 * to support the needs of such tools and private definitions moved to
2790 2788 * private headers.
2791 2789 */
2792 2790 struct ip_pkt_s {
2793 2791 uint_t ipp_fields; /* Which fields are valid */
2794 2792 in6_addr_t ipp_addr; /* pktinfo src/dst addr */
2795 2793 #define ipp_addr_v4 V4_PART_OF_V6(ipp_addr)
2796 2794 uint_t ipp_unicast_hops; /* IPV6_UNICAST_HOPS, IP_TTL */
2797 2795 uint_t ipp_hoplimit; /* IPV6_HOPLIMIT */
2798 2796 uint_t ipp_hopoptslen;
2799 2797 uint_t ipp_rthdrdstoptslen;
2800 2798 uint_t ipp_rthdrlen;
2801 2799 uint_t ipp_dstoptslen;
2802 2800 uint_t ipp_fraghdrlen;
2803 2801 ip6_hbh_t *ipp_hopopts;
2804 2802 ip6_dest_t *ipp_rthdrdstopts;
2805 2803 ip6_rthdr_t *ipp_rthdr;
2806 2804 ip6_dest_t *ipp_dstopts;
2807 2805 ip6_frag_t *ipp_fraghdr;
2808 2806 uint8_t ipp_tclass; /* IPV6_TCLASS */
2809 2807 uint8_t ipp_type_of_service; /* IP_TOS */
2810 2808 uint_t ipp_ipv4_options_len; /* Len of IPv4 options */
2811 2809 uint8_t *ipp_ipv4_options; /* Ptr to IPv4 options */
2812 2810 uint_t ipp_label_len_v4; /* Len of TX label for IPv4 */
2813 2811 uint8_t *ipp_label_v4; /* TX label for IPv4 */
2814 2812 uint_t ipp_label_len_v6; /* Len of TX label for IPv6 */
2815 2813 uint8_t *ipp_label_v6; /* TX label for IPv6 */
2816 2814 };
2817 2815 typedef struct ip_pkt_s ip_pkt_t;
2818 2816
2819 2817 extern void ip_pkt_free(ip_pkt_t *); /* free storage inside ip_pkt_t */
2820 2818 extern ipaddr_t ip_pkt_source_route_v4(const ip_pkt_t *);
2821 2819 extern in6_addr_t *ip_pkt_source_route_v6(const ip_pkt_t *);
2822 2820 extern int ip_pkt_copy(ip_pkt_t *, ip_pkt_t *, int);
2823 2821 extern void ip_pkt_source_route_reverse_v4(ip_pkt_t *);
2824 2822
2825 2823 /* ipp_fields values */
2826 2824 #define IPPF_ADDR 0x0001 /* Part of in6_pktinfo: src/dst addr */
2827 2825 #define IPPF_HOPLIMIT 0x0002 /* Overrides unicast and multicast */
2828 2826 #define IPPF_TCLASS 0x0004 /* Overrides class in sin6_flowinfo */
2829 2827
2830 2828 #define IPPF_HOPOPTS 0x0010 /* ipp_hopopts set */
2831 2829 #define IPPF_RTHDR 0x0020 /* ipp_rthdr set */
2832 2830 #define IPPF_RTHDRDSTOPTS 0x0040 /* ipp_rthdrdstopts set */
2833 2831 #define IPPF_DSTOPTS 0x0080 /* ipp_dstopts set */
2834 2832
2835 2833 #define IPPF_IPV4_OPTIONS 0x0100 /* ipp_ipv4_options set */
2836 2834 #define IPPF_LABEL_V4 0x0200 /* ipp_label_v4 set */
2837 2835 #define IPPF_LABEL_V6 0x0400 /* ipp_label_v6 set */
2838 2836
2839 2837 #define IPPF_FRAGHDR 0x0800 /* Used for IPsec receive side */
2840 2838
2841 2839 /*
2842 2840 * Data structure which is passed to conn_opt_get/set.
2843 2841 * The conn_t is included even though it can be inferred from queue_t.
2844 2842 * setsockopt and getsockopt use conn_ixa and conn_xmit_ipp. However,
2845 2843 * when handling ancillary data we use separate ixa and ipps.
2846 2844 */
2847 2845 typedef struct conn_opt_arg_s {
2848 2846 conn_t *coa_connp;
2849 2847 ip_xmit_attr_t *coa_ixa;
2850 2848 ip_pkt_t *coa_ipp;
2851 2849 boolean_t coa_ancillary; /* Ancillary data and not setsockopt */
2852 2850 uint_t coa_changed; /* See below */
2853 2851 } conn_opt_arg_t;
2854 2852
2855 2853 /*
2856 2854 * Flags for what changed.
2857 2855 * If we want to be more efficient in the future we can have more fine
2858 2856 * grained flags e.g., a flag for just IP_TOS changing.
2859 2857 * For now we either call ip_set_destination (for "route changed")
2860 2858 * and/or conn_build_hdr_template/conn_prepend_hdr (for "header changed").
2861 2859 */
2862 2860 #define COA_HEADER_CHANGED 0x0001
2863 2861 #define COA_ROUTE_CHANGED 0x0002
2864 2862 #define COA_RCVBUF_CHANGED 0x0004 /* SO_RCVBUF */
2865 2863 #define COA_SNDBUF_CHANGED 0x0008 /* SO_SNDBUF */
2866 2864 #define COA_WROFF_CHANGED 0x0010 /* Header size changed */
2867 2865 #define COA_ICMP_BIND_NEEDED 0x0020
2868 2866 #define COA_OOBINLINE_CHANGED 0x0040
2869 2867
2870 2868 #define TCP_PORTS_OFFSET 0
2871 2869 #define UDP_PORTS_OFFSET 0
2872 2870
2873 2871 /*
2874 2872 * lookups return the ill/ipif only if the flags are clear OR Iam writer.
2875 2873 * ill / ipif lookup functions increment the refcnt on the ill / ipif only
2876 2874 * after calling these macros. This ensures that the refcnt on the ipif or
2877 2875 * ill will eventually drop down to zero.
2878 2876 */
2879 2877 #define ILL_LOOKUP_FAILED 1 /* Used as error code */
2880 2878 #define IPIF_LOOKUP_FAILED 2 /* Used as error code */
2881 2879
2882 2880 #define ILL_CAN_LOOKUP(ill) \
2883 2881 (!((ill)->ill_state_flags & ILL_CONDEMNED) || \
2884 2882 IAM_WRITER_ILL(ill))
2885 2883
2886 2884 #define ILL_IS_CONDEMNED(ill) \
2887 2885 ((ill)->ill_state_flags & ILL_CONDEMNED)
2888 2886
2889 2887 #define IPIF_CAN_LOOKUP(ipif) \
2890 2888 (!((ipif)->ipif_state_flags & IPIF_CONDEMNED) || \
2891 2889 IAM_WRITER_IPIF(ipif))
2892 2890
2893 2891 #define IPIF_IS_CONDEMNED(ipif) \
2894 2892 ((ipif)->ipif_state_flags & IPIF_CONDEMNED)
2895 2893
2896 2894 #define IPIF_IS_CHANGING(ipif) \
2897 2895 ((ipif)->ipif_state_flags & IPIF_CHANGING)
2898 2896
2899 2897 /* Macros used to assert that this thread is a writer */
2900 2898 #define IAM_WRITER_IPSQ(ipsq) ((ipsq)->ipsq_xop->ipx_writer == curthread)
2901 2899 #define IAM_WRITER_ILL(ill) IAM_WRITER_IPSQ((ill)->ill_phyint->phyint_ipsq)
2902 2900 #define IAM_WRITER_IPIF(ipif) IAM_WRITER_ILL((ipif)->ipif_ill)
2903 2901
2904 2902 /*
2905 2903 * Grab ill locks in the proper order. The order is highest addressed
2906 2904 * ill is locked first.
2907 2905 */
2908 2906 #define GRAB_ILL_LOCKS(ill_1, ill_2) \
2909 2907 { \
2910 2908 if ((ill_1) > (ill_2)) { \
2911 2909 if (ill_1 != NULL) \
2912 2910 mutex_enter(&(ill_1)->ill_lock); \
2913 2911 if (ill_2 != NULL) \
2914 2912 mutex_enter(&(ill_2)->ill_lock); \
2915 2913 } else { \
2916 2914 if (ill_2 != NULL) \
2917 2915 mutex_enter(&(ill_2)->ill_lock); \
2918 2916 if (ill_1 != NULL && ill_1 != ill_2) \
2919 2917 mutex_enter(&(ill_1)->ill_lock); \
2920 2918 } \
2921 2919 }
2922 2920
2923 2921 #define RELEASE_ILL_LOCKS(ill_1, ill_2) \
2924 2922 { \
2925 2923 if (ill_1 != NULL) \
2926 2924 mutex_exit(&(ill_1)->ill_lock); \
2927 2925 if (ill_2 != NULL && ill_2 != ill_1) \
2928 2926 mutex_exit(&(ill_2)->ill_lock); \
2929 2927 }
2930 2928
2931 2929 /* Get the other protocol instance ill */
2932 2930 #define ILL_OTHER(ill) \
2933 2931 ((ill)->ill_isv6 ? (ill)->ill_phyint->phyint_illv4 : \
2934 2932 (ill)->ill_phyint->phyint_illv6)
2935 2933
2936 2934 /* ioctl command info: Ioctl properties extracted and stored in here */
2937 2935 typedef struct cmd_info_s
2938 2936 {
2939 2937 ipif_t *ci_ipif; /* ipif associated with [l]ifreq ioctl's */
2940 2938 sin_t *ci_sin; /* the sin struct passed down */
2941 2939 sin6_t *ci_sin6; /* the sin6_t struct passed down */
2942 2940 struct lifreq *ci_lifr; /* the lifreq struct passed down */
2943 2941 } cmd_info_t;
2944 2942
2945 2943 extern struct kmem_cache *ire_cache;
2946 2944
2947 2945 extern ipaddr_t ip_g_all_ones;
2948 2946
2949 2947 extern uint_t ip_loopback_mtu; /* /etc/system */
2950 2948 extern uint_t ip_loopback_mtuplus;
2951 2949 extern uint_t ip_loopback_mtu_v6plus;
2952 2950
2953 2951 extern vmem_t *ip_minor_arena_sa;
2954 2952 extern vmem_t *ip_minor_arena_la;
2955 2953
2956 2954 /*
2957 2955 * ip_g_forward controls IP forwarding. It takes two values:
2958 2956 * 0: IP_FORWARD_NEVER Don't forward packets ever.
2959 2957 * 1: IP_FORWARD_ALWAYS Forward packets for elsewhere.
2960 2958 *
2961 2959 * RFC1122 says there must be a configuration switch to control forwarding,
2962 2960 * but that the default MUST be to not forward packets ever. Implicit
2963 2961 * control based on configuration of multiple interfaces MUST NOT be
2964 2962 * implemented (Section 3.1). SunOS 4.1 did provide the "automatic" capability
2965 2963 * and, in fact, it was the default. That capability is now provided in the
2966 2964 * /etc/rc2.d/S69inet script.
2967 2965 */
2968 2966
2969 2967 #define ips_ip_respond_to_address_mask_broadcast \
2970 2968 ips_propinfo_tbl[0].prop_cur_bval
2971 2969 #define ips_ip_g_resp_to_echo_bcast ips_propinfo_tbl[1].prop_cur_bval
2972 2970 #define ips_ip_g_resp_to_echo_mcast ips_propinfo_tbl[2].prop_cur_bval
2973 2971 #define ips_ip_g_resp_to_timestamp ips_propinfo_tbl[3].prop_cur_bval
2974 2972 #define ips_ip_g_resp_to_timestamp_bcast ips_propinfo_tbl[4].prop_cur_bval
2975 2973 #define ips_ip_g_send_redirects ips_propinfo_tbl[5].prop_cur_bval
2976 2974 #define ips_ip_g_forward_directed_bcast ips_propinfo_tbl[6].prop_cur_bval
2977 2975 #define ips_ip_mrtdebug ips_propinfo_tbl[7].prop_cur_uval
2978 2976 #define ips_ip_ire_reclaim_fraction ips_propinfo_tbl[8].prop_cur_uval
2979 2977 #define ips_ip_nce_reclaim_fraction ips_propinfo_tbl[9].prop_cur_uval
2980 2978 #define ips_ip_dce_reclaim_fraction ips_propinfo_tbl[10].prop_cur_uval
2981 2979 #define ips_ip_def_ttl ips_propinfo_tbl[11].prop_cur_uval
2982 2980 #define ips_ip_forward_src_routed ips_propinfo_tbl[12].prop_cur_bval
2983 2981 #define ips_ip_wroff_extra ips_propinfo_tbl[13].prop_cur_uval
2984 2982 #define ips_ip_pathmtu_interval ips_propinfo_tbl[14].prop_cur_uval
2985 2983 #define ips_ip_icmp_return ips_propinfo_tbl[15].prop_cur_uval
2986 2984 #define ips_ip_path_mtu_discovery ips_propinfo_tbl[16].prop_cur_bval
2987 2985 #define ips_ip_pmtu_min ips_propinfo_tbl[17].prop_cur_uval
2988 2986 #define ips_ip_ignore_redirect ips_propinfo_tbl[18].prop_cur_bval
2989 2987 #define ips_ip_arp_icmp_error ips_propinfo_tbl[19].prop_cur_bval
2990 2988 #define ips_ip_broadcast_ttl ips_propinfo_tbl[20].prop_cur_uval
2991 2989 #define ips_ip_icmp_err_interval ips_propinfo_tbl[21].prop_cur_uval
2992 2990 #define ips_ip_icmp_err_burst ips_propinfo_tbl[22].prop_cur_uval
2993 2991 #define ips_ip_reass_queue_bytes ips_propinfo_tbl[23].prop_cur_uval
2994 2992 #define ips_ip_strict_dst_multihoming ips_propinfo_tbl[24].prop_cur_uval
2995 2993 #define ips_ip_addrs_per_if ips_propinfo_tbl[25].prop_cur_uval
2996 2994 #define ips_ipsec_override_persocket_policy ips_propinfo_tbl[26].prop_cur_bval
2997 2995 #define ips_icmp_accept_clear_messages ips_propinfo_tbl[27].prop_cur_bval
2998 2996 #define ips_igmp_accept_clear_messages ips_propinfo_tbl[28].prop_cur_bval
2999 2997
3000 2998 /* IPv6 configuration knobs */
3001 2999 #define ips_delay_first_probe_time ips_propinfo_tbl[29].prop_cur_uval
3002 3000 #define ips_max_unicast_solicit ips_propinfo_tbl[30].prop_cur_uval
3003 3001 #define ips_ipv6_def_hops ips_propinfo_tbl[31].prop_cur_uval
3004 3002 #define ips_ipv6_icmp_return ips_propinfo_tbl[32].prop_cur_uval
3005 3003 #define ips_ipv6_forward_src_routed ips_propinfo_tbl[33].prop_cur_bval
3006 3004 #define ips_ipv6_resp_echo_mcast ips_propinfo_tbl[34].prop_cur_bval
3007 3005 #define ips_ipv6_send_redirects ips_propinfo_tbl[35].prop_cur_bval
3008 3006 #define ips_ipv6_ignore_redirect ips_propinfo_tbl[36].prop_cur_bval
3009 3007 #define ips_ipv6_strict_dst_multihoming ips_propinfo_tbl[37].prop_cur_uval
3010 3008 #define ips_src_check ips_propinfo_tbl[38].prop_cur_uval
3011 3009 #define ips_ipsec_policy_log_interval ips_propinfo_tbl[39].prop_cur_uval
3012 3010 #define ips_pim_accept_clear_messages ips_propinfo_tbl[40].prop_cur_bval
3013 3011 #define ips_ip_ndp_unsolicit_interval ips_propinfo_tbl[41].prop_cur_uval
3014 3012 #define ips_ip_ndp_unsolicit_count ips_propinfo_tbl[42].prop_cur_uval
3015 3013 #define ips_ipv6_ignore_home_address_opt ips_propinfo_tbl[43].prop_cur_bval
3016 3014
3017 3015 /* Misc IP configuration knobs */
3018 3016 #define ips_ip_policy_mask ips_propinfo_tbl[44].prop_cur_uval
3019 3017 #define ips_ip_ecmp_behavior ips_propinfo_tbl[45].prop_cur_uval
3020 3018 #define ips_ip_multirt_ttl ips_propinfo_tbl[46].prop_cur_uval
3021 3019 #define ips_ip_ire_badcnt_lifetime ips_propinfo_tbl[47].prop_cur_uval
3022 3020 #define ips_ip_max_temp_idle ips_propinfo_tbl[48].prop_cur_uval
3023 3021 #define ips_ip_max_temp_defend ips_propinfo_tbl[49].prop_cur_uval
3024 3022 #define ips_ip_max_defend ips_propinfo_tbl[50].prop_cur_uval
3025 3023 #define ips_ip_defend_interval ips_propinfo_tbl[51].prop_cur_uval
3026 3024 #define ips_ip_dup_recovery ips_propinfo_tbl[52].prop_cur_uval
3027 3025 #define ips_ip_restrict_interzone_loopback ips_propinfo_tbl[53].prop_cur_bval
3028 3026 #define ips_ip_lso_outbound ips_propinfo_tbl[54].prop_cur_bval
3029 3027 #define ips_igmp_max_version ips_propinfo_tbl[55].prop_cur_uval
3030 3028 #define ips_mld_max_version ips_propinfo_tbl[56].prop_cur_uval
3031 3029 #define ips_ip_forwarding ips_propinfo_tbl[57].prop_cur_bval
3032 3030 #define ips_ipv6_forwarding ips_propinfo_tbl[58].prop_cur_bval
3033 3031 #define ips_ip_reassembly_timeout ips_propinfo_tbl[59].prop_cur_uval
3034 3032 #define ips_ipv6_reassembly_timeout ips_propinfo_tbl[60].prop_cur_uval
3035 3033 #define ips_ip_cgtp_filter ips_propinfo_tbl[61].prop_cur_bval
3036 3034 #define ips_arp_probe_delay ips_propinfo_tbl[62].prop_cur_uval
3037 3035 #define ips_arp_fastprobe_delay ips_propinfo_tbl[63].prop_cur_uval
3038 3036 #define ips_arp_probe_interval ips_propinfo_tbl[64].prop_cur_uval
3039 3037 #define ips_arp_fastprobe_interval ips_propinfo_tbl[65].prop_cur_uval
3040 3038 #define ips_arp_probe_count ips_propinfo_tbl[66].prop_cur_uval
3041 3039 #define ips_arp_fastprobe_count ips_propinfo_tbl[67].prop_cur_uval
3042 3040 #define ips_ipv4_dad_announce_interval ips_propinfo_tbl[68].prop_cur_uval
3043 3041 #define ips_ipv6_dad_announce_interval ips_propinfo_tbl[69].prop_cur_uval
3044 3042 #define ips_arp_defend_interval ips_propinfo_tbl[70].prop_cur_uval
3045 3043 #define ips_arp_defend_rate ips_propinfo_tbl[71].prop_cur_uval
3046 3044 #define ips_ndp_defend_interval ips_propinfo_tbl[72].prop_cur_uval
3047 3045 #define ips_ndp_defend_rate ips_propinfo_tbl[73].prop_cur_uval
3048 3046 #define ips_arp_defend_period ips_propinfo_tbl[74].prop_cur_uval
3049 3047 #define ips_ndp_defend_period ips_propinfo_tbl[75].prop_cur_uval
3050 3048 #define ips_ipv4_icmp_return_pmtu ips_propinfo_tbl[76].prop_cur_bval
3051 3049 #define ips_ipv6_icmp_return_pmtu ips_propinfo_tbl[77].prop_cur_bval
3052 3050 #define ips_ip_arp_publish_count ips_propinfo_tbl[78].prop_cur_uval
3053 3051 #define ips_ip_arp_publish_interval ips_propinfo_tbl[79].prop_cur_uval
3054 3052 #define ips_ip_strict_src_multihoming ips_propinfo_tbl[80].prop_cur_uval
3055 3053 #define ips_ipv6_strict_src_multihoming ips_propinfo_tbl[81].prop_cur_uval
3056 3054 #define ips_ipv6_drop_inbound_icmpv6 ips_propinfo_tbl[82].prop_cur_bval
3057 3055 #define ips_ip_dce_reclaim_threshold ips_propinfo_tbl[83].prop_cur_uval
3058 3056
3059 3057 extern int dohwcksum; /* use h/w cksum if supported by the h/w */
3060 3058 #ifdef ZC_TEST
3061 3059 extern int noswcksum;
3062 3060 #endif
3063 3061
3064 3062 extern char ipif_loopback_name[];
3065 3063
3066 3064 extern nv_t *ire_nv_tbl;
3067 3065
3068 3066 extern struct module_info ip_mod_info;
3069 3067
3070 3068 #define HOOKS4_INTERESTED_PHYSICAL_IN(ipst) \
3071 3069 ((ipst)->ips_ip4_physical_in_event.he_interested)
3072 3070 #define HOOKS6_INTERESTED_PHYSICAL_IN(ipst) \
3073 3071 ((ipst)->ips_ip6_physical_in_event.he_interested)
3074 3072 #define HOOKS4_INTERESTED_PHYSICAL_OUT(ipst) \
3075 3073 ((ipst)->ips_ip4_physical_out_event.he_interested)
3076 3074 #define HOOKS6_INTERESTED_PHYSICAL_OUT(ipst) \
3077 3075 ((ipst)->ips_ip6_physical_out_event.he_interested)
3078 3076 #define HOOKS4_INTERESTED_FORWARDING(ipst) \
3079 3077 ((ipst)->ips_ip4_forwarding_event.he_interested)
3080 3078 #define HOOKS6_INTERESTED_FORWARDING(ipst) \
3081 3079 ((ipst)->ips_ip6_forwarding_event.he_interested)
3082 3080 #define HOOKS4_INTERESTED_LOOPBACK_IN(ipst) \
3083 3081 ((ipst)->ips_ip4_loopback_in_event.he_interested)
3084 3082 #define HOOKS6_INTERESTED_LOOPBACK_IN(ipst) \
3085 3083 ((ipst)->ips_ip6_loopback_in_event.he_interested)
3086 3084 #define HOOKS4_INTERESTED_LOOPBACK_OUT(ipst) \
3087 3085 ((ipst)->ips_ip4_loopback_out_event.he_interested)
3088 3086 #define HOOKS6_INTERESTED_LOOPBACK_OUT(ipst) \
3089 3087 ((ipst)->ips_ip6_loopback_out_event.he_interested)
3090 3088 /*
3091 3089 * Hooks marcos used inside of ip
3092 3090 * The callers use the above INTERESTED macros first, hence
3093 3091 * the he_interested check is superflous.
3094 3092 */
3095 3093 #define FW_HOOKS(_hook, _event, _ilp, _olp, _iph, _fm, _m, _llm, ipst, _err) \
3096 3094 if ((_hook).he_interested) { \
3097 3095 hook_pkt_event_t info; \
3098 3096 \
3099 3097 _NOTE(CONSTCOND) \
3100 3098 ASSERT((_ilp != NULL) || (_olp != NULL)); \
3101 3099 \
3102 3100 FW_SET_ILL_INDEX(info.hpe_ifp, (ill_t *)_ilp); \
3103 3101 FW_SET_ILL_INDEX(info.hpe_ofp, (ill_t *)_olp); \
3104 3102 info.hpe_protocol = ipst->ips_ipv4_net_data; \
3105 3103 info.hpe_hdr = _iph; \
3106 3104 info.hpe_mp = &(_fm); \
3107 3105 info.hpe_mb = _m; \
3108 3106 info.hpe_flags = _llm; \
3109 3107 _err = hook_run(ipst->ips_ipv4_net_data->netd_hooks, \
3110 3108 _event, (hook_data_t)&info); \
3111 3109 if (_err != 0) { \
3112 3110 ip2dbg(("%s hook dropped mblk chain %p hdr %p\n",\
3113 3111 (_hook).he_name, (void *)_fm, (void *)_m)); \
3114 3112 if (_fm != NULL) { \
3115 3113 freemsg(_fm); \
3116 3114 _fm = NULL; \
3117 3115 } \
3118 3116 _iph = NULL; \
3119 3117 _m = NULL; \
3120 3118 } else { \
3121 3119 _iph = info.hpe_hdr; \
3122 3120 _m = info.hpe_mb; \
3123 3121 } \
3124 3122 }
3125 3123
3126 3124 #define FW_HOOKS6(_hook, _event, _ilp, _olp, _iph, _fm, _m, _llm, ipst, _err) \
3127 3125 if ((_hook).he_interested) { \
3128 3126 hook_pkt_event_t info; \
3129 3127 \
3130 3128 _NOTE(CONSTCOND) \
3131 3129 ASSERT((_ilp != NULL) || (_olp != NULL)); \
3132 3130 \
3133 3131 FW_SET_ILL_INDEX(info.hpe_ifp, (ill_t *)_ilp); \
3134 3132 FW_SET_ILL_INDEX(info.hpe_ofp, (ill_t *)_olp); \
3135 3133 info.hpe_protocol = ipst->ips_ipv6_net_data; \
3136 3134 info.hpe_hdr = _iph; \
3137 3135 info.hpe_mp = &(_fm); \
3138 3136 info.hpe_mb = _m; \
3139 3137 info.hpe_flags = _llm; \
3140 3138 _err = hook_run(ipst->ips_ipv6_net_data->netd_hooks, \
3141 3139 _event, (hook_data_t)&info); \
3142 3140 if (_err != 0) { \
3143 3141 ip2dbg(("%s hook dropped mblk chain %p hdr %p\n",\
3144 3142 (_hook).he_name, (void *)_fm, (void *)_m)); \
3145 3143 if (_fm != NULL) { \
3146 3144 freemsg(_fm); \
3147 3145 _fm = NULL; \
3148 3146 } \
3149 3147 _iph = NULL; \
3150 3148 _m = NULL; \
3151 3149 } else { \
3152 3150 _iph = info.hpe_hdr; \
3153 3151 _m = info.hpe_mb; \
3154 3152 } \
3155 3153 }
3156 3154
3157 3155 #define FW_SET_ILL_INDEX(fp, ill) \
3158 3156 _NOTE(CONSTCOND) \
3159 3157 if ((ill) == NULL || (ill)->ill_phyint == NULL) { \
3160 3158 (fp) = 0; \
3161 3159 _NOTE(CONSTCOND) \
3162 3160 } else if (IS_UNDER_IPMP(ill)) { \
3163 3161 (fp) = ipmp_ill_get_ipmp_ifindex(ill); \
3164 3162 } else { \
3165 3163 (fp) = (ill)->ill_phyint->phyint_ifindex; \
3166 3164 }
3167 3165
3168 3166 /*
3169 3167 * Network byte order macros
3170 3168 */
3171 3169 #ifdef _BIG_ENDIAN
3172 3170 #define N_IN_CLASSA_NET IN_CLASSA_NET
3173 3171 #define N_IN_CLASSD_NET IN_CLASSD_NET
3174 3172 #define N_INADDR_UNSPEC_GROUP INADDR_UNSPEC_GROUP
3175 3173 #define N_IN_LOOPBACK_NET (ipaddr_t)0x7f000000U
3176 3174 #else /* _BIG_ENDIAN */
3177 3175 #define N_IN_CLASSA_NET (ipaddr_t)0x000000ffU
3178 3176 #define N_IN_CLASSD_NET (ipaddr_t)0x000000f0U
3179 3177 #define N_INADDR_UNSPEC_GROUP (ipaddr_t)0x000000e0U
3180 3178 #define N_IN_LOOPBACK_NET (ipaddr_t)0x0000007fU
3181 3179 #endif /* _BIG_ENDIAN */
3182 3180 #define CLASSD(addr) (((addr) & N_IN_CLASSD_NET) == N_INADDR_UNSPEC_GROUP)
3183 3181 #define CLASSE(addr) (((addr) & N_IN_CLASSD_NET) == N_IN_CLASSD_NET)
3184 3182 #define IP_LOOPBACK_ADDR(addr) \
3185 3183 (((addr) & N_IN_CLASSA_NET == N_IN_LOOPBACK_NET))
3186 3184
3187 3185 extern int ip_debug;
3188 3186 extern uint_t ip_thread_data;
3189 3187 extern krwlock_t ip_thread_rwlock;
3190 3188 extern list_t ip_thread_list;
3191 3189
3192 3190 #ifdef IP_DEBUG
3193 3191 #include <sys/debug.h>
3194 3192 #include <sys/promif.h>
3195 3193
3196 3194 #define ip0dbg(a) printf a
3197 3195 #define ip1dbg(a) if (ip_debug > 2) printf a
3198 3196 #define ip2dbg(a) if (ip_debug > 3) printf a
3199 3197 #define ip3dbg(a) if (ip_debug > 4) printf a
3200 3198 #else
3201 3199 #define ip0dbg(a) /* */
3202 3200 #define ip1dbg(a) /* */
3203 3201 #define ip2dbg(a) /* */
3204 3202 #define ip3dbg(a) /* */
3205 3203 #endif /* IP_DEBUG */
3206 3204
3207 3205 /* Default MAC-layer address string length for mac_colon_addr */
3208 3206 #define MAC_STR_LEN 128
3209 3207
3210 3208 struct mac_header_info_s;
3211 3209
3212 3210 extern void ill_frag_timer(void *);
3213 3211 extern ill_t *ill_first(int, int, ill_walk_context_t *, ip_stack_t *);
3214 3212 extern ill_t *ill_next(ill_walk_context_t *, ill_t *);
3215 3213 extern void ill_frag_timer_start(ill_t *);
3216 3214 extern void ill_nic_event_dispatch(ill_t *, lif_if_t, nic_event_t,
3217 3215 nic_event_data_t, size_t);
3218 3216 extern mblk_t *ip_carve_mp(mblk_t **, ssize_t);
3219 3217 extern mblk_t *ip_dlpi_alloc(size_t, t_uscalar_t);
3220 3218 extern mblk_t *ip_dlnotify_alloc(uint_t, uint_t);
3221 3219 extern mblk_t *ip_dlnotify_alloc2(uint_t, uint_t, uint_t);
3222 3220 extern char *ip_dot_addr(ipaddr_t, char *);
3223 3221 extern const char *mac_colon_addr(const uint8_t *, size_t, char *, size_t);
3224 3222 extern int ip_lwput(queue_t *, mblk_t *);
3225 3223 extern boolean_t icmp_err_rate_limit(ip_stack_t *);
3226 3224 extern void icmp_frag_needed(mblk_t *, int, ip_recv_attr_t *);
3227 3225 extern mblk_t *icmp_inbound_v4(mblk_t *, ip_recv_attr_t *);
3228 3226 extern void icmp_time_exceeded(mblk_t *, uint8_t, ip_recv_attr_t *);
3229 3227 extern void icmp_unreachable(mblk_t *, uint8_t, ip_recv_attr_t *);
3230 3228 extern boolean_t ip_ipsec_policy_inherit(conn_t *, conn_t *, ip_recv_attr_t *);
3231 3229 extern void *ip_pullup(mblk_t *, ssize_t, ip_recv_attr_t *);
3232 3230 extern void ip_setl2src(mblk_t *, ip_recv_attr_t *, ill_t *);
3233 3231 extern mblk_t *ip_check_and_align_header(mblk_t *, uint_t, ip_recv_attr_t *);
3234 3232 extern mblk_t *ip_check_length(mblk_t *, uchar_t *, ssize_t, uint_t, uint_t,
3235 3233 ip_recv_attr_t *);
3236 3234 extern mblk_t *ip_check_optlen(mblk_t *, ipha_t *, uint_t, uint_t,
3237 3235 ip_recv_attr_t *);
3238 3236 extern mblk_t *ip_fix_dbref(mblk_t *, ip_recv_attr_t *);
3239 3237 extern uint_t ip_cksum(mblk_t *, int, uint32_t);
3240 3238 extern int ip_close(queue_t *, int, cred_t *);
3241 3239 extern uint16_t ip_csum_hdr(ipha_t *);
3242 3240 extern void ip_forward_xmit_v4(nce_t *, ill_t *, mblk_t *, ipha_t *,
3243 3241 ip_recv_attr_t *, uint32_t, uint32_t);
3244 3242 extern boolean_t ip_forward_options(mblk_t *, ipha_t *, ill_t *,
3245 3243 ip_recv_attr_t *);
3246 3244 extern int ip_fragment_v4(mblk_t *, nce_t *, iaflags_t, uint_t, uint32_t,
3247 3245 uint32_t, zoneid_t, zoneid_t, pfirepostfrag_t postfragfn,
3248 3246 uintptr_t *cookie);
3249 3247 extern void ip_proto_not_sup(mblk_t *, ip_recv_attr_t *);
3250 3248 extern void ip_ire_g_fini(void);
3251 3249 extern void ip_ire_g_init(void);
3252 3250 extern void ip_ire_fini(ip_stack_t *);
3253 3251 extern void ip_ire_init(ip_stack_t *);
3254 3252 extern void ip_mdata_to_mhi(ill_t *, mblk_t *, struct mac_header_info_s *);
3255 3253 extern int ip_openv4(queue_t *q, dev_t *devp, int flag, int sflag,
3256 3254 cred_t *credp);
3257 3255 extern int ip_openv6(queue_t *q, dev_t *devp, int flag, int sflag,
3258 3256 cred_t *credp);
3259 3257 extern int ip_reassemble(mblk_t *, ipf_t *, uint_t, boolean_t, ill_t *,
3260 3258 size_t);
3261 3259 extern int ip_rput(queue_t *, mblk_t *);
3262 3260 extern void ip_input(ill_t *, ill_rx_ring_t *, mblk_t *,
3263 3261 struct mac_header_info_s *);
3264 3262 extern void ip_input_v6(ill_t *, ill_rx_ring_t *, mblk_t *,
3265 3263 struct mac_header_info_s *);
3266 3264 extern mblk_t *ip_input_common_v4(ill_t *, ill_rx_ring_t *, mblk_t *,
3267 3265 struct mac_header_info_s *, squeue_t *, mblk_t **, uint_t *);
3268 3266 extern mblk_t *ip_input_common_v6(ill_t *, ill_rx_ring_t *, mblk_t *,
3269 3267 struct mac_header_info_s *, squeue_t *, mblk_t **, uint_t *);
3270 3268 extern void ill_input_full_v4(mblk_t *, void *, void *,
3271 3269 ip_recv_attr_t *, rtc_t *);
3272 3270 extern void ill_input_short_v4(mblk_t *, void *, void *,
3273 3271 ip_recv_attr_t *, rtc_t *);
3274 3272 extern void ill_input_full_v6(mblk_t *, void *, void *,
3275 3273 ip_recv_attr_t *, rtc_t *);
3276 3274 extern void ill_input_short_v6(mblk_t *, void *, void *,
3277 3275 ip_recv_attr_t *, rtc_t *);
3278 3276 extern ipaddr_t ip_input_options(ipha_t *, ipaddr_t, mblk_t *,
3279 3277 ip_recv_attr_t *, int *);
3280 3278 extern boolean_t ip_input_local_options(mblk_t *, ipha_t *, ip_recv_attr_t *);
3281 3279 extern mblk_t *ip_input_fragment(mblk_t *, ipha_t *, ip_recv_attr_t *);
3282 3280 extern mblk_t *ip_input_fragment_v6(mblk_t *, ip6_t *, ip6_frag_t *, uint_t,
3283 3281 ip_recv_attr_t *);
3284 3282 extern void ip_input_post_ipsec(mblk_t *, ip_recv_attr_t *);
3285 3283 extern void ip_fanout_v4(mblk_t *, ipha_t *, ip_recv_attr_t *);
3286 3284 extern void ip_fanout_v6(mblk_t *, ip6_t *, ip_recv_attr_t *);
3287 3285 extern void ip_fanout_proto_conn(conn_t *, mblk_t *, ipha_t *, ip6_t *,
3288 3286 ip_recv_attr_t *);
3289 3287 extern void ip_fanout_proto_v4(mblk_t *, ipha_t *, ip_recv_attr_t *);
3290 3288 extern void ip_fanout_send_icmp_v4(mblk_t *, uint_t, uint_t,
3291 3289 ip_recv_attr_t *);
3292 3290 extern void ip_fanout_udp_conn(conn_t *, mblk_t *, ipha_t *, ip6_t *,
3293 3291 ip_recv_attr_t *);
3294 3292 extern void ip_fanout_udp_multi_v4(mblk_t *, ipha_t *, uint16_t, uint16_t,
3295 3293 ip_recv_attr_t *);
3296 3294 extern mblk_t *zero_spi_check(mblk_t *, ip_recv_attr_t *);
3297 3295 extern void ip_build_hdrs_v4(uchar_t *, uint_t, const ip_pkt_t *, uint8_t);
3298 3296 extern int ip_find_hdr_v4(ipha_t *, ip_pkt_t *, boolean_t);
3299 3297 extern int ip_total_hdrs_len_v4(const ip_pkt_t *);
3300 3298
3301 3299 extern mblk_t *ip_accept_tcp(ill_t *, ill_rx_ring_t *, squeue_t *,
3302 3300 mblk_t *, mblk_t **, uint_t *cnt);
3303 3301 extern void ip_rput_dlpi(ill_t *, mblk_t *);
3304 3302 extern void ip_rput_notdata(ill_t *, mblk_t *);
3305 3303
3306 3304 extern void ip_mib2_add_ip_stats(mib2_ipIfStatsEntry_t *,
3307 3305 mib2_ipIfStatsEntry_t *);
3308 3306 extern void ip_mib2_add_icmp6_stats(mib2_ipv6IfIcmpEntry_t *,
3309 3307 mib2_ipv6IfIcmpEntry_t *);
3310 3308 extern void ip_rput_other(ipsq_t *, queue_t *, mblk_t *, void *);
3311 3309 extern ire_t *ip_check_multihome(void *, ire_t *, ill_t *);
3312 3310 extern void ip_send_potential_redirect_v4(mblk_t *, ipha_t *, ire_t *,
3313 3311 ip_recv_attr_t *);
3314 3312 extern int ip_set_destination_v4(ipaddr_t *, ipaddr_t, ipaddr_t,
3315 3313 ip_xmit_attr_t *, iulp_t *, uint32_t, uint_t);
3316 3314 extern int ip_set_destination_v6(in6_addr_t *, const in6_addr_t *,
3317 3315 const in6_addr_t *, ip_xmit_attr_t *, iulp_t *, uint32_t, uint_t);
3318 3316
3319 3317 extern int ip_output_simple(mblk_t *, ip_xmit_attr_t *);
3320 3318 extern int ip_output_simple_v4(mblk_t *, ip_xmit_attr_t *);
3321 3319 extern int ip_output_simple_v6(mblk_t *, ip_xmit_attr_t *);
3322 3320 extern int ip_output_options(mblk_t *, ipha_t *, ip_xmit_attr_t *,
3323 3321 ill_t *);
3324 3322 extern void ip_output_local_options(ipha_t *, ip_stack_t *);
3325 3323
3326 3324 extern ip_xmit_attr_t *conn_get_ixa(conn_t *, boolean_t);
3327 3325 extern ip_xmit_attr_t *conn_get_ixa_tryhard(conn_t *, boolean_t);
3328 3326 extern ip_xmit_attr_t *conn_replace_ixa(conn_t *, ip_xmit_attr_t *);
3329 3327 extern ip_xmit_attr_t *conn_get_ixa_exclusive(conn_t *);
3330 3328 extern ip_xmit_attr_t *ip_xmit_attr_duplicate(ip_xmit_attr_t *);
3331 3329 extern void ip_xmit_attr_replace_tsl(ip_xmit_attr_t *, ts_label_t *);
3332 3330 extern void ip_xmit_attr_restore_tsl(ip_xmit_attr_t *, cred_t *);
3333 3331 boolean_t ip_recv_attr_replace_label(ip_recv_attr_t *, ts_label_t *);
3334 3332 extern void ixa_inactive(ip_xmit_attr_t *);
3335 3333 extern void ixa_refrele(ip_xmit_attr_t *);
3336 3334 extern boolean_t ixa_check_drain_insert(conn_t *, ip_xmit_attr_t *);
3337 3335 extern void ixa_cleanup(ip_xmit_attr_t *);
3338 3336 extern void ira_cleanup(ip_recv_attr_t *, boolean_t);
3339 3337 extern void ixa_safe_copy(ip_xmit_attr_t *, ip_xmit_attr_t *);
3340 3338
3341 3339 extern int conn_ip_output(mblk_t *, ip_xmit_attr_t *);
3342 3340 extern boolean_t ip_output_verify_local(ip_xmit_attr_t *);
3343 3341 extern mblk_t *ip_output_process_local(mblk_t *, ip_xmit_attr_t *, boolean_t,
3344 3342 boolean_t, conn_t *);
3345 3343
3346 3344 extern int conn_opt_get(conn_opt_arg_t *, t_scalar_t, t_scalar_t,
3347 3345 uchar_t *);
3348 3346 extern int conn_opt_set(conn_opt_arg_t *, t_scalar_t, t_scalar_t, uint_t,
3349 3347 uchar_t *, boolean_t, cred_t *);
3350 3348 extern boolean_t conn_same_as_last_v4(conn_t *, sin_t *);
3351 3349 extern boolean_t conn_same_as_last_v6(conn_t *, sin6_t *);
3352 3350 extern int conn_update_label(const conn_t *, const ip_xmit_attr_t *,
3353 3351 const in6_addr_t *, ip_pkt_t *);
3354 3352
3355 3353 extern int ip_opt_set_multicast_group(conn_t *, t_scalar_t,
3356 3354 uchar_t *, boolean_t, boolean_t);
3357 3355 extern int ip_opt_set_multicast_sources(conn_t *, t_scalar_t,
3358 3356 uchar_t *, boolean_t, boolean_t);
3359 3357 extern int conn_getsockname(conn_t *, struct sockaddr *, uint_t *);
3360 3358 extern int conn_getpeername(conn_t *, struct sockaddr *, uint_t *);
3361 3359
3362 3360 extern int conn_build_hdr_template(conn_t *, uint_t, uint_t,
3363 3361 const in6_addr_t *, const in6_addr_t *, uint32_t);
3364 3362 extern mblk_t *conn_prepend_hdr(ip_xmit_attr_t *, const ip_pkt_t *,
3365 3363 const in6_addr_t *, const in6_addr_t *, uint8_t, uint32_t, uint_t,
3366 3364 mblk_t *, uint_t, uint_t, uint32_t *, int *);
3367 3365 extern void ip_attr_newdst(ip_xmit_attr_t *);
3368 3366 extern void ip_attr_nexthop(const ip_pkt_t *, const ip_xmit_attr_t *,
3369 3367 const in6_addr_t *, in6_addr_t *);
3370 3368 extern int conn_connect(conn_t *, iulp_t *, uint32_t);
3371 3369 extern int ip_attr_connect(const conn_t *, ip_xmit_attr_t *,
3372 3370 const in6_addr_t *, const in6_addr_t *, const in6_addr_t *, in_port_t,
3373 3371 in6_addr_t *, iulp_t *, uint32_t);
3374 3372 extern int conn_inherit_parent(conn_t *, conn_t *);
3375 3373
3376 3374 extern void conn_ixa_cleanup(conn_t *connp, void *arg);
3377 3375
3378 3376 extern boolean_t conn_wantpacket(conn_t *, ip_recv_attr_t *, ipha_t *);
3379 3377 extern uint_t ip_type_v4(ipaddr_t, ip_stack_t *);
3380 3378 extern uint_t ip_type_v6(const in6_addr_t *, ip_stack_t *);
3381 3379
3382 3380 extern int ip_wput_nondata(queue_t *, mblk_t *);
3383 3381 extern int ip_wsrv(queue_t *);
3384 3382 extern char *ip_nv_lookup(nv_t *, int);
3385 3383 extern boolean_t ip_local_addr_ok_v6(const in6_addr_t *, const in6_addr_t *);
3386 3384 extern boolean_t ip_remote_addr_ok_v6(const in6_addr_t *, const in6_addr_t *);
3387 3385 extern ipaddr_t ip_massage_options(ipha_t *, netstack_t *);
3388 3386 extern ipaddr_t ip_net_mask(ipaddr_t);
3389 3387 extern void arp_bringup_done(ill_t *, int);
3390 3388 extern void arp_replumb_done(ill_t *, int);
3391 3389
3392 3390 extern struct qinit iprinitv6;
3393 3391
3394 3392 extern void ipmp_init(ip_stack_t *);
3395 3393 extern void ipmp_destroy(ip_stack_t *);
3396 3394 extern ipmp_grp_t *ipmp_grp_create(const char *, phyint_t *);
3397 3395 extern void ipmp_grp_destroy(ipmp_grp_t *);
3398 3396 extern void ipmp_grp_info(const ipmp_grp_t *, lifgroupinfo_t *);
3399 3397 extern int ipmp_grp_rename(ipmp_grp_t *, const char *);
3400 3398 extern ipmp_grp_t *ipmp_grp_lookup(const char *, ip_stack_t *);
3401 3399 extern int ipmp_grp_vet_phyint(ipmp_grp_t *, phyint_t *);
3402 3400 extern ipmp_illgrp_t *ipmp_illgrp_create(ill_t *);
3403 3401 extern void ipmp_illgrp_destroy(ipmp_illgrp_t *);
3404 3402 extern ill_t *ipmp_illgrp_add_ipif(ipmp_illgrp_t *, ipif_t *);
3405 3403 extern void ipmp_illgrp_del_ipif(ipmp_illgrp_t *, ipif_t *);
3406 3404 extern ill_t *ipmp_illgrp_next_ill(ipmp_illgrp_t *);
3407 3405 extern ill_t *ipmp_illgrp_hold_next_ill(ipmp_illgrp_t *);
3408 3406 extern ill_t *ipmp_illgrp_hold_cast_ill(ipmp_illgrp_t *);
3409 3407 extern ill_t *ipmp_illgrp_ipmp_ill(ipmp_illgrp_t *);
3410 3408 extern void ipmp_illgrp_refresh_mtu(ipmp_illgrp_t *);
3411 3409 extern ipmp_arpent_t *ipmp_illgrp_create_arpent(ipmp_illgrp_t *,
3412 3410 boolean_t, ipaddr_t, uchar_t *, size_t, uint16_t);
3413 3411 extern void ipmp_illgrp_destroy_arpent(ipmp_illgrp_t *, ipmp_arpent_t *);
3414 3412 extern ipmp_arpent_t *ipmp_illgrp_lookup_arpent(ipmp_illgrp_t *, ipaddr_t *);
3415 3413 extern void ipmp_illgrp_refresh_arpent(ipmp_illgrp_t *);
3416 3414 extern void ipmp_illgrp_mark_arpent(ipmp_illgrp_t *, ipmp_arpent_t *);
3417 3415 extern ill_t *ipmp_illgrp_find_ill(ipmp_illgrp_t *, uchar_t *, uint_t);
3418 3416 extern void ipmp_illgrp_link_grp(ipmp_illgrp_t *, ipmp_grp_t *);
3419 3417 extern int ipmp_illgrp_unlink_grp(ipmp_illgrp_t *);
3420 3418 extern uint_t ipmp_ill_get_ipmp_ifindex(const ill_t *);
3421 3419 extern void ipmp_ill_join_illgrp(ill_t *, ipmp_illgrp_t *);
3422 3420 extern void ipmp_ill_leave_illgrp(ill_t *);
3423 3421 extern ill_t *ipmp_ill_hold_ipmp_ill(ill_t *);
3424 3422 extern ill_t *ipmp_ill_hold_xmit_ill(ill_t *, boolean_t);
3425 3423 extern boolean_t ipmp_ill_is_active(ill_t *);
3426 3424 extern void ipmp_ill_refresh_active(ill_t *);
3427 3425 extern void ipmp_phyint_join_grp(phyint_t *, ipmp_grp_t *);
3428 3426 extern void ipmp_phyint_leave_grp(phyint_t *);
3429 3427 extern void ipmp_phyint_refresh_active(phyint_t *);
3430 3428 extern ill_t *ipmp_ipif_bound_ill(const ipif_t *);
3431 3429 extern ill_t *ipmp_ipif_hold_bound_ill(const ipif_t *);
3432 3430 extern boolean_t ipmp_ipif_is_dataaddr(const ipif_t *);
3433 3431 extern boolean_t ipmp_ipif_is_stubaddr(const ipif_t *);
3434 3432 extern boolean_t ipmp_packet_is_probe(mblk_t *, ill_t *);
3435 3433 extern void ipmp_ncec_delete_nce(ncec_t *);
3436 3434 extern void ipmp_ncec_refresh_nce(ncec_t *);
3437 3435
3438 3436 extern void conn_drain_insert(conn_t *, idl_tx_list_t *);
3439 3437 extern void conn_setqfull(conn_t *, boolean_t *);
3440 3438 extern void conn_clrqfull(conn_t *, boolean_t *);
3441 3439 extern int conn_ipsec_length(conn_t *);
3442 3440 extern ipaddr_t ip_get_dst(ipha_t *);
3443 3441 extern uint_t ip_get_pmtu(ip_xmit_attr_t *);
3444 3442 extern uint_t ip_get_base_mtu(ill_t *, ire_t *);
3445 3443 extern mblk_t *ip_output_attach_policy(mblk_t *, ipha_t *, ip6_t *,
3446 3444 const conn_t *, ip_xmit_attr_t *);
3447 3445 extern int ipsec_out_extra_length(ip_xmit_attr_t *);
3448 3446 extern int ipsec_out_process(mblk_t *, ip_xmit_attr_t *);
3449 3447 extern int ip_output_post_ipsec(mblk_t *, ip_xmit_attr_t *);
3450 3448 extern void ipsec_out_to_in(ip_xmit_attr_t *, ill_t *ill,
3451 3449 ip_recv_attr_t *);
3452 3450
3453 3451 extern void ire_cleanup(ire_t *);
3454 3452 extern void ire_inactive(ire_t *);
3455 3453 extern boolean_t irb_inactive(irb_t *);
3456 3454 extern ire_t *ire_unlink(irb_t *);
3457 3455
3458 3456 #ifdef DEBUG
3459 3457 extern boolean_t th_trace_ref(const void *, ip_stack_t *);
3460 3458 extern void th_trace_unref(const void *);
3461 3459 extern void th_trace_cleanup(const void *, boolean_t);
3462 3460 extern void ire_trace_ref(ire_t *);
3463 3461 extern void ire_untrace_ref(ire_t *);
3464 3462 #endif
3465 3463
3466 3464 extern int ip_srcid_insert(const in6_addr_t *, zoneid_t, ip_stack_t *);
3467 3465 extern int ip_srcid_remove(const in6_addr_t *, zoneid_t, ip_stack_t *);
3468 3466 extern boolean_t ip_srcid_find_id(uint_t, in6_addr_t *, zoneid_t, boolean_t,
3469 3467 netstack_t *);
3470 3468 extern uint_t ip_srcid_find_addr(const in6_addr_t *, zoneid_t, netstack_t *);
3471 3469
3472 3470 extern uint8_t ipoptp_next(ipoptp_t *);
3473 3471 extern uint8_t ipoptp_first(ipoptp_t *, ipha_t *);
3474 3472 extern int ip_opt_get_user(conn_t *, uchar_t *);
3475 3473 extern int ipsec_req_from_conn(conn_t *, ipsec_req_t *, int);
3476 3474 extern int ip_snmp_get(queue_t *q, mblk_t *mctl, int level, boolean_t);
3477 3475 extern int ip_snmp_set(queue_t *q, int, int, uchar_t *, int);
3478 3476 extern void ip_process_ioctl(ipsq_t *, queue_t *, mblk_t *, void *);
3479 3477 extern void ip_quiesce_conn(conn_t *);
3480 3478 extern void ip_reprocess_ioctl(ipsq_t *, queue_t *, mblk_t *, void *);
3481 3479 extern void ip_ioctl_finish(queue_t *, mblk_t *, int, int, ipsq_t *);
3482 3480
3483 3481 extern boolean_t ip_cmpbuf(const void *, uint_t, boolean_t, const void *,
3484 3482 uint_t);
3485 3483 extern boolean_t ip_allocbuf(void **, uint_t *, boolean_t, const void *,
3486 3484 uint_t);
3487 3485 extern void ip_savebuf(void **, uint_t *, boolean_t, const void *, uint_t);
3488 3486
3489 3487 extern boolean_t ipsq_pending_mp_cleanup(ill_t *, conn_t *);
3490 3488 extern void conn_ioctl_cleanup(conn_t *);
3491 3489
3492 3490 extern void ip_unbind(conn_t *);
3493 3491
3494 3492 extern void tnet_init(void);
3495 3493 extern void tnet_fini(void);
3496 3494
3497 3495 /*
3498 3496 * Hook functions to enable cluster networking
3499 3497 * On non-clustered systems these vectors must always be NULL.
3500 3498 */
3501 3499 extern int (*cl_inet_isclusterwide)(netstackid_t stack_id, uint8_t protocol,
3502 3500 sa_family_t addr_family, uint8_t *laddrp, void *args);
3503 3501 extern uint32_t (*cl_inet_ipident)(netstackid_t stack_id, uint8_t protocol,
3504 3502 sa_family_t addr_family, uint8_t *laddrp, uint8_t *faddrp,
3505 3503 void *args);
3506 3504 extern int (*cl_inet_connect2)(netstackid_t stack_id, uint8_t protocol,
3507 3505 boolean_t is_outgoing, sa_family_t addr_family, uint8_t *laddrp,
3508 3506 in_port_t lport, uint8_t *faddrp, in_port_t fport, void *args);
3509 3507 extern void (*cl_inet_getspi)(netstackid_t, uint8_t, uint8_t *, size_t,
3510 3508 void *);
3511 3509 extern void (*cl_inet_getspi)(netstackid_t stack_id, uint8_t protocol,
3512 3510 uint8_t *ptr, size_t len, void *args);
3513 3511 extern int (*cl_inet_checkspi)(netstackid_t stack_id, uint8_t protocol,
3514 3512 uint32_t spi, void *args);
3515 3513 extern void (*cl_inet_deletespi)(netstackid_t stack_id, uint8_t protocol,
3516 3514 uint32_t spi, void *args);
3517 3515 extern void (*cl_inet_idlesa)(netstackid_t, uint8_t, uint32_t,
3518 3516 sa_family_t, in6_addr_t, in6_addr_t, void *);
3519 3517
3520 3518
3521 3519 /* Hooks for CGTP (multirt routes) filtering module */
3522 3520 #define CGTP_FILTER_REV_1 1
3523 3521 #define CGTP_FILTER_REV_2 2
3524 3522 #define CGTP_FILTER_REV_3 3
3525 3523 #define CGTP_FILTER_REV CGTP_FILTER_REV_3
3526 3524
3527 3525 /* cfo_filter and cfo_filter_v6 hooks return values */
3528 3526 #define CGTP_IP_PKT_NOT_CGTP 0
3529 3527 #define CGTP_IP_PKT_PREMIUM 1
3530 3528 #define CGTP_IP_PKT_DUPLICATE 2
3531 3529
3532 3530 /* Version 3 of the filter interface */
3533 3531 typedef struct cgtp_filter_ops {
3534 3532 int cfo_filter_rev; /* CGTP_FILTER_REV_3 */
3535 3533 int (*cfo_change_state)(netstackid_t, int);
3536 3534 int (*cfo_add_dest_v4)(netstackid_t, ipaddr_t, ipaddr_t,
3537 3535 ipaddr_t, ipaddr_t);
3538 3536 int (*cfo_del_dest_v4)(netstackid_t, ipaddr_t, ipaddr_t);
3539 3537 int (*cfo_add_dest_v6)(netstackid_t, in6_addr_t *, in6_addr_t *,
3540 3538 in6_addr_t *, in6_addr_t *);
3541 3539 int (*cfo_del_dest_v6)(netstackid_t, in6_addr_t *, in6_addr_t *);
3542 3540 int (*cfo_filter)(netstackid_t, uint_t, mblk_t *);
3543 3541 int (*cfo_filter_v6)(netstackid_t, uint_t, ip6_t *,
3544 3542 ip6_frag_t *);
3545 3543 } cgtp_filter_ops_t;
3546 3544
3547 3545 #define CGTP_MCAST_SUCCESS 1
3548 3546
3549 3547 /*
3550 3548 * The separate CGTP module needs this global symbol so that it
3551 3549 * can check the version and determine whether to use the old or the new
3552 3550 * version of the filtering interface.
3553 3551 */
3554 3552 extern int ip_cgtp_filter_rev;
3555 3553
3556 3554 extern int ip_cgtp_filter_supported(void);
3557 3555 extern int ip_cgtp_filter_register(netstackid_t, cgtp_filter_ops_t *);
3558 3556 extern int ip_cgtp_filter_unregister(netstackid_t);
3559 3557 extern int ip_cgtp_filter_is_registered(netstackid_t);
3560 3558
3561 3559 /*
3562 3560 * rr_ring_state cycles in the order shown below from RR_FREE through
3563 3561 * RR_FREE_IN_PROG and back to RR_FREE.
3564 3562 */
3565 3563 typedef enum {
3566 3564 RR_FREE, /* Free slot */
3567 3565 RR_SQUEUE_UNBOUND, /* Ring's squeue is unbound */
3568 3566 RR_SQUEUE_BIND_INPROG, /* Ring's squeue bind in progress */
3569 3567 RR_SQUEUE_BOUND, /* Ring's squeue bound to cpu */
3570 3568 RR_FREE_INPROG /* Ring is being freed */
3571 3569 } ip_ring_state_t;
3572 3570
3573 3571 #define ILL_MAX_RINGS 256 /* Max num of rx rings we can manage */
3574 3572 #define ILL_POLLING 0x01 /* Polling in use */
3575 3573
3576 3574 /*
3577 3575 * These functions pointer types are exported by the mac/dls layer.
3578 3576 * we need to duplicate the definitions here because we cannot
3579 3577 * include mac/dls header files here.
3580 3578 */
3581 3579 typedef boolean_t (*ip_mac_intr_disable_t)(void *);
3582 3580 typedef int (*ip_mac_intr_enable_t)(void *);
3583 3581 typedef ip_mac_tx_cookie_t (*ip_dld_tx_t)(void *, mblk_t *,
3584 3582 uint64_t, uint16_t);
3585 3583 typedef void (*ip_flow_enable_t)(void *, ip_mac_tx_cookie_t);
3586 3584 typedef void *(*ip_dld_callb_t)(void *,
3587 3585 ip_flow_enable_t, void *);
3588 3586 typedef boolean_t (*ip_dld_fctl_t)(void *, ip_mac_tx_cookie_t);
3589 3587 typedef boolean_t (*ip_mac_ipcheck_t)(void *, boolean_t,
3590 3588 in6_addr_t *);
3591 3589 typedef int (*ip_capab_func_t)(void *, uint_t,
3592 3590 void *, uint_t);
3593 3591
3594 3592 /*
3595 3593 * POLLING README
3596 3594 * sq_get_pkts() is called to pick packets from softring in poll mode. It
3597 3595 * calls rr_rx to get the chain and process it with rr_ip_accept.
3598 3596 * rr_rx = mac_soft_ring_poll() to pick packets
3599 3597 * rr_ip_accept = ip_accept_tcp() to process packets
3600 3598 */
3601 3599
3602 3600 /*
3603 3601 * XXX: With protocol, service specific squeues, they will have
3604 3602 * specific acceptor functions.
3605 3603 */
3606 3604 typedef mblk_t *(*ip_mac_rx_t)(void *, size_t);
3607 3605 typedef mblk_t *(*ip_accept_t)(ill_t *, ill_rx_ring_t *,
3608 3606 squeue_t *, mblk_t *, mblk_t **, uint_t *);
3609 3607
3610 3608 /*
3611 3609 * rr_intr_enable, rr_intr_disable, rr_rx_handle, rr_rx:
3612 3610 * May be accessed while in the squeue AND after checking that SQS_POLL_CAPAB
3613 3611 * is set.
3614 3612 *
3615 3613 * rr_ring_state: Protected by ill_lock.
3616 3614 */
3617 3615 struct ill_rx_ring {
3618 3616 ip_mac_intr_disable_t rr_intr_disable; /* Interrupt disabling func */
3619 3617 ip_mac_intr_enable_t rr_intr_enable; /* Interrupt enabling func */
3620 3618 void *rr_intr_handle; /* Handle interrupt funcs */
3621 3619 ip_mac_rx_t rr_rx; /* Driver receive function */
3622 3620 ip_accept_t rr_ip_accept; /* IP accept function */
3623 3621 void *rr_rx_handle; /* Handle for Rx ring */
3624 3622 squeue_t *rr_sqp; /* Squeue the ring is bound to */
3625 3623 ill_t *rr_ill; /* back pointer to ill */
3626 3624 ip_ring_state_t rr_ring_state; /* State of this ring */
3627 3625 };
3628 3626
3629 3627 /*
3630 3628 * IP - DLD direct function call capability
3631 3629 * Suffixes, df - dld function, dh - dld handle,
3632 3630 * cf - client (IP) function, ch - client handle
3633 3631 */
3634 3632 typedef struct ill_dld_direct_s { /* DLD provided driver Tx */
3635 3633 ip_dld_tx_t idd_tx_df; /* str_mdata_fastpath_put */
3636 3634 void *idd_tx_dh; /* dld_str_t *dsp */
3637 3635 ip_dld_callb_t idd_tx_cb_df; /* mac_tx_srs_notify */
3638 3636 void *idd_tx_cb_dh; /* mac_client_handle_t *mch */
3639 3637 ip_dld_fctl_t idd_tx_fctl_df; /* mac_tx_is_flow_blocked */
3640 3638 void *idd_tx_fctl_dh; /* mac_client_handle */
3641 3639 } ill_dld_direct_t;
3642 3640
3643 3641 /* IP - DLD direct function call to check if an IP is allowed */
3644 3642 typedef struct ill_dld_ipcheck_s {
3645 3643 ip_mac_ipcheck_t idi_allowed_df;
3646 3644 void *idi_allowed_dh;
3647 3645 } ill_dld_ipcheck_t;
3648 3646
3649 3647 /* IP - DLD polling capability */
3650 3648 typedef struct ill_dld_poll_s {
3651 3649 ill_rx_ring_t idp_ring_tbl[ILL_MAX_RINGS];
3652 3650 } ill_dld_poll_t;
3653 3651
3654 3652 /* Describes ill->ill_dld_capab */
3655 3653 struct ill_dld_capab_s {
3656 3654 ip_capab_func_t idc_capab_df; /* dld_capab_func */
3657 3655 void *idc_capab_dh; /* dld_str_t *dsp */
3658 3656 ill_dld_direct_t idc_direct;
3659 3657 ill_dld_poll_t idc_poll;
3660 3658 ill_dld_ipcheck_t idc_ipcheck;
3661 3659 };
3662 3660
3663 3661 /*
3664 3662 * IP squeues exports
3665 3663 */
3666 3664 extern boolean_t ip_squeue_fanout;
3667 3665
3668 3666 #define IP_SQUEUE_GET(hint) ip_squeue_random(hint)
3669 3667
3670 3668 extern void ip_squeue_init(void (*)(squeue_t *));
3671 3669 extern squeue_t *ip_squeue_random(uint_t);
3672 3670 extern squeue_t *ip_squeue_get(ill_rx_ring_t *);
3673 3671 extern squeue_t *ip_squeue_getfree(pri_t);
3674 3672 extern int ip_squeue_cpu_move(squeue_t *, processorid_t);
3675 3673 extern void *ip_squeue_add_ring(ill_t *, void *);
3676 3674 extern void ip_squeue_bind_ring(ill_t *, ill_rx_ring_t *, processorid_t);
3677 3675 extern void ip_squeue_clean_ring(ill_t *, ill_rx_ring_t *);
3678 3676 extern void ip_squeue_quiesce_ring(ill_t *, ill_rx_ring_t *);
3679 3677 extern void ip_squeue_restart_ring(ill_t *, ill_rx_ring_t *);
3680 3678 extern void ip_squeue_clean_all(ill_t *);
3681 3679 extern boolean_t ip_source_routed(ipha_t *, ip_stack_t *);
3682 3680
3683 3681 extern int tcp_wput(queue_t *, mblk_t *);
3684 3682
3685 3683 extern int ip_fill_mtuinfo(conn_t *, ip_xmit_attr_t *,
3686 3684 struct ip6_mtuinfo *);
3687 3685 extern hook_t *ipobs_register_hook(netstack_t *, pfv_t);
3688 3686 extern void ipobs_unregister_hook(netstack_t *, hook_t *);
3689 3687 extern void ipobs_hook(mblk_t *, int, zoneid_t, zoneid_t, const ill_t *,
3690 3688 ip_stack_t *);
3691 3689 typedef void (*ipsq_func_t)(ipsq_t *, queue_t *, mblk_t *, void *);
3692 3690
3693 3691 extern void dce_g_init(void);
3694 3692 extern void dce_g_destroy(void);
3695 3693 extern void dce_stack_init(ip_stack_t *);
3696 3694 extern void dce_stack_destroy(ip_stack_t *);
3697 3695 extern void dce_cleanup(uint_t, ip_stack_t *);
3698 3696 extern dce_t *dce_get_default(ip_stack_t *);
3699 3697 extern dce_t *dce_lookup_pkt(mblk_t *, ip_xmit_attr_t *, uint_t *);
3700 3698 extern dce_t *dce_lookup_v4(ipaddr_t, ip_stack_t *, uint_t *);
3701 3699 extern dce_t *dce_lookup_v6(const in6_addr_t *, uint_t, ip_stack_t *,
3702 3700 uint_t *);
3703 3701 extern dce_t *dce_lookup_and_add_v4(ipaddr_t, ip_stack_t *);
3704 3702 extern dce_t *dce_lookup_and_add_v6(const in6_addr_t *, uint_t,
3705 3703 ip_stack_t *);
3706 3704 extern int dce_update_uinfo_v4(ipaddr_t, iulp_t *, ip_stack_t *);
3707 3705 extern int dce_update_uinfo_v6(const in6_addr_t *, uint_t, iulp_t *,
3708 3706 ip_stack_t *);
3709 3707 extern int dce_update_uinfo(const in6_addr_t *, uint_t, iulp_t *,
3710 3708 ip_stack_t *);
3711 3709 extern void dce_increment_generation(dce_t *);
3712 3710 extern void dce_increment_all_generations(boolean_t, ip_stack_t *);
3713 3711 extern void dce_refrele(dce_t *);
3714 3712 extern void dce_refhold(dce_t *);
3715 3713 extern void dce_refrele_notr(dce_t *);
3716 3714 extern void dce_refhold_notr(dce_t *);
3717 3715 mblk_t *ip_snmp_get_mib2_ip_dce(queue_t *, mblk_t *, ip_stack_t *ipst);
3718 3716
3719 3717 extern ip_laddr_t ip_laddr_verify_v4(ipaddr_t, zoneid_t,
3720 3718 ip_stack_t *, boolean_t);
3721 3719 extern ip_laddr_t ip_laddr_verify_v6(const in6_addr_t *, zoneid_t,
3722 3720 ip_stack_t *, boolean_t, uint_t);
3723 3721 extern int ip_laddr_fanout_insert(conn_t *);
3724 3722
3725 3723 extern boolean_t ip_verify_src(mblk_t *, ip_xmit_attr_t *, uint_t *);
3726 3724 extern int ip_verify_ire(mblk_t *, ip_xmit_attr_t *);
3727 3725
3728 3726 extern mblk_t *ip_xmit_attr_to_mblk(ip_xmit_attr_t *);
3729 3727 extern boolean_t ip_xmit_attr_from_mblk(mblk_t *, ip_xmit_attr_t *);
3730 3728 extern mblk_t *ip_xmit_attr_free_mblk(mblk_t *);
3731 3729 extern mblk_t *ip_recv_attr_to_mblk(ip_recv_attr_t *);
3732 3730 extern boolean_t ip_recv_attr_from_mblk(mblk_t *, ip_recv_attr_t *);
3733 3731 extern mblk_t *ip_recv_attr_free_mblk(mblk_t *);
3734 3732 extern boolean_t ip_recv_attr_is_mblk(mblk_t *);
3735 3733
3736 3734 #ifdef __PRAGMA_REDEFINE_EXTNAME
3737 3735 #pragma redefine_extname inet_ntop _inet_ntop
3738 3736 #pragma redefine_extname inet_pton _inet_pton
3739 3737 #else
3740 3738 #define inet_ntop _inet_ntop
3741 3739 #define inet_pton _inet_pton
3742 3740 #endif /* __PRAGMA_REDEFINE_EXTNAME */
3743 3741
3744 3742 extern char *inet_ntop(int, const void *, char *, int);
3745 3743 extern int inet_pton(int, char *, void *);
3746 3744
3747 3745 /*
3748 3746 * Squeue tags. Tags only need to be unique when the callback function is the
3749 3747 * same to distinguish between different calls, but we use unique tags for
3750 3748 * convenience anyway.
3751 3749 */
3752 3750 #define SQTAG_IP_INPUT 1
3753 3751 #define SQTAG_TCP_INPUT_ICMP_ERR 2
3754 3752 #define SQTAG_TCP6_INPUT_ICMP_ERR 3
3755 3753 #define SQTAG_IP_TCP_INPUT 4
3756 3754 #define SQTAG_IP6_TCP_INPUT 5
3757 3755 #define SQTAG_IP_TCP_CLOSE 6
3758 3756 #define SQTAG_TCP_OUTPUT 7
3759 3757 #define SQTAG_TCP_TIMER 8
3760 3758 #define SQTAG_TCP_TIMEWAIT 9
3761 3759 #define SQTAG_TCP_ACCEPT_FINISH 10
3762 3760 #define SQTAG_TCP_ACCEPT_FINISH_Q0 11
3763 3761 #define SQTAG_TCP_ACCEPT_PENDING 12
3764 3762 #define SQTAG_TCP_LISTEN_DISCON 13
3765 3763 #define SQTAG_TCP_CONN_REQ_1 14
3766 3764 #define SQTAG_TCP_EAGER_BLOWOFF 15
3767 3765 #define SQTAG_TCP_EAGER_CLEANUP 16
3768 3766 #define SQTAG_TCP_EAGER_CLEANUP_Q0 17
3769 3767 #define SQTAG_TCP_CONN_IND 18
3770 3768 #define SQTAG_TCP_RSRV 19
3771 3769 #define SQTAG_TCP_ABORT_BUCKET 20
3772 3770 #define SQTAG_TCP_REINPUT 21
3773 3771 #define SQTAG_TCP_REINPUT_EAGER 22
3774 3772 #define SQTAG_TCP_INPUT_MCTL 23
3775 3773 #define SQTAG_TCP_RPUTOTHER 24
3776 3774 #define SQTAG_IP_PROTO_AGAIN 25
3777 3775 #define SQTAG_IP_FANOUT_TCP 26
3778 3776 #define SQTAG_IPSQ_CLEAN_RING 27
3779 3777 #define SQTAG_TCP_WPUT_OTHER 28
3780 3778 #define SQTAG_TCP_CONN_REQ_UNBOUND 29
3781 3779 #define SQTAG_TCP_SEND_PENDING 30
3782 3780 #define SQTAG_BIND_RETRY 31
3783 3781 #define SQTAG_UDP_FANOUT 32
3784 3782 #define SQTAG_UDP_INPUT 33
3785 3783 #define SQTAG_UDP_WPUT 34
3786 3784 #define SQTAG_UDP_OUTPUT 35
3787 3785 #define SQTAG_TCP_KSSL_INPUT 36
3788 3786 #define SQTAG_TCP_DROP_Q0 37
3789 3787 #define SQTAG_TCP_CONN_REQ_2 38
3790 3788 #define SQTAG_IP_INPUT_RX_RING 39
3791 3789 #define SQTAG_SQUEUE_CHANGE 40
3792 3790 #define SQTAG_CONNECT_FINISH 41
3793 3791 #define SQTAG_SYNCHRONOUS_OP 42
3794 3792 #define SQTAG_TCP_SHUTDOWN_OUTPUT 43
3795 3793 #define SQTAG_TCP_IXA_CLEANUP 44
3796 3794 #define SQTAG_TCP_SEND_SYNACK 45
3797 3795
3798 3796 extern sin_t sin_null; /* Zero address for quick clears */
3799 3797 extern sin6_t sin6_null; /* Zero address for quick clears */
3800 3798
3801 3799 #endif /* _KERNEL */
3802 3800
3803 3801 #ifdef __cplusplus
3804 3802 }
3805 3803 #endif
3806 3804
3807 3805 #endif /* _INET_IP_H */
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