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4596 Callers of ip_srcid_find_id() need to be more careful
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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
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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 (c) 2012, Joyent, Inc. All rights reserved.
26 26 * Copyright 2014 Nexenta Systems, Inc. All rights reserved.
27 + * Copyright 2014, OmniTI Computer Consulting, Inc. All rights reserved.
27 28 */
28 29
29 30 #ifndef _INET_IP_H
30 31 #define _INET_IP_H
31 32
32 33 #ifdef __cplusplus
33 34 extern "C" {
34 35 #endif
35 36
36 37 #include <sys/isa_defs.h>
37 38 #include <sys/types.h>
38 39 #include <inet/mib2.h>
39 40 #include <inet/nd.h>
40 41 #include <sys/atomic.h>
41 42 #include <net/if_dl.h>
42 43 #include <net/if.h>
43 44 #include <netinet/ip.h>
44 45 #include <netinet/igmp.h>
45 46 #include <sys/neti.h>
46 47 #include <sys/hook.h>
47 48 #include <sys/hook_event.h>
48 49 #include <sys/hook_impl.h>
49 50 #include <inet/ip_stack.h>
50 51
51 52 #ifdef _KERNEL
52 53 #include <netinet/ip6.h>
53 54 #include <sys/avl.h>
54 55 #include <sys/list.h>
55 56 #include <sys/vmem.h>
56 57 #include <sys/squeue.h>
57 58 #include <net/route.h>
58 59 #include <sys/systm.h>
59 60 #include <net/radix.h>
60 61 #include <sys/modhash.h>
61 62
62 63 #ifdef DEBUG
63 64 #define CONN_DEBUG
64 65 #endif
65 66
66 67 #define IP_DEBUG
67 68 /*
68 69 * The mt-streams(9F) flags for the IP module; put here so that other
69 70 * "drivers" that are actually IP (e.g., ICMP, UDP) can use the same set
70 71 * of flags.
71 72 */
72 73 #define IP_DEVMTFLAGS D_MP
73 74 #endif /* _KERNEL */
74 75
75 76 #define IP_MOD_NAME "ip"
76 77 #define IP_DEV_NAME "/dev/ip"
77 78 #define IP6_DEV_NAME "/dev/ip6"
78 79
79 80 #define UDP_MOD_NAME "udp"
80 81 #define UDP_DEV_NAME "/dev/udp"
81 82 #define UDP6_DEV_NAME "/dev/udp6"
82 83
83 84 #define TCP_MOD_NAME "tcp"
84 85 #define TCP_DEV_NAME "/dev/tcp"
85 86 #define TCP6_DEV_NAME "/dev/tcp6"
86 87
87 88 #define SCTP_MOD_NAME "sctp"
88 89
89 90 #ifndef _IPADDR_T
90 91 #define _IPADDR_T
91 92 typedef uint32_t ipaddr_t;
92 93 #endif
93 94
94 95 /* Number of bits in an address */
95 96 #define IP_ABITS 32
96 97 #define IPV4_ABITS IP_ABITS
97 98 #define IPV6_ABITS 128
98 99 #define IP_MAX_HW_LEN 40
99 100
100 101 #define IP_HOST_MASK (ipaddr_t)0xffffffffU
101 102
102 103 #define IP_CSUM(mp, off, sum) (~ip_cksum(mp, off, sum) & 0xFFFF)
103 104 #define IP_CSUM_PARTIAL(mp, off, sum) ip_cksum(mp, off, sum)
104 105 #define IP_BCSUM_PARTIAL(bp, len, sum) bcksum(bp, len, sum)
105 106
106 107 #define ILL_FRAG_HASH_TBL_COUNT ((unsigned int)64)
107 108 #define ILL_FRAG_HASH_TBL_SIZE (ILL_FRAG_HASH_TBL_COUNT * sizeof (ipfb_t))
108 109
109 110 #define IPV4_ADDR_LEN 4
110 111 #define IP_ADDR_LEN IPV4_ADDR_LEN
111 112 #define IP_ARP_PROTO_TYPE 0x0800
112 113
113 114 #define IPV4_VERSION 4
114 115 #define IP_VERSION IPV4_VERSION
115 116 #define IP_SIMPLE_HDR_LENGTH_IN_WORDS 5
116 117 #define IP_SIMPLE_HDR_LENGTH 20
117 118 #define IP_MAX_HDR_LENGTH 60
118 119
119 120 #define IP_MAX_OPT_LENGTH (IP_MAX_HDR_LENGTH-IP_SIMPLE_HDR_LENGTH)
120 121
121 122 #define IP_MIN_MTU (IP_MAX_HDR_LENGTH + 8) /* 68 bytes */
122 123
123 124 /*
124 125 * XXX IP_MAXPACKET is defined in <netinet/ip.h> as well. At some point the
125 126 * 2 files should be cleaned up to remove all redundant definitions.
126 127 */
127 128 #define IP_MAXPACKET 65535
128 129 #define IP_SIMPLE_HDR_VERSION \
129 130 ((IP_VERSION << 4) | IP_SIMPLE_HDR_LENGTH_IN_WORDS)
130 131
131 132 #define UDPH_SIZE 8
132 133
133 134 /*
134 135 * Constants and type definitions to support IP IOCTL commands
135 136 */
136 137 #define IP_IOCTL (('i'<<8)|'p')
137 138 #define IP_IOC_IRE_DELETE 4
138 139 #define IP_IOC_IRE_DELETE_NO_REPLY 5
139 140 #define IP_IOC_RTS_REQUEST 7
140 141
141 142 /* Common definitions used by IP IOCTL data structures */
142 143 typedef struct ipllcmd_s {
143 144 uint_t ipllc_cmd;
144 145 uint_t ipllc_name_offset;
145 146 uint_t ipllc_name_length;
146 147 } ipllc_t;
147 148
148 149 /* IP IRE Delete Command Structure. */
149 150 typedef struct ipid_s {
150 151 ipllc_t ipid_ipllc;
151 152 uint_t ipid_ire_type;
152 153 uint_t ipid_addr_offset;
153 154 uint_t ipid_addr_length;
154 155 uint_t ipid_mask_offset;
155 156 uint_t ipid_mask_length;
156 157 } ipid_t;
157 158
158 159 #define ipid_cmd ipid_ipllc.ipllc_cmd
159 160
160 161 #ifdef _KERNEL
161 162 /*
162 163 * Temporary state for ip options parser.
163 164 */
164 165 typedef struct ipoptp_s
165 166 {
166 167 uint8_t *ipoptp_next; /* next option to look at */
167 168 uint8_t *ipoptp_end; /* end of options */
168 169 uint8_t *ipoptp_cur; /* start of current option */
169 170 uint8_t ipoptp_len; /* length of current option */
170 171 uint32_t ipoptp_flags;
171 172 } ipoptp_t;
172 173
173 174 /*
174 175 * Flag(s) for ipoptp_flags
175 176 */
176 177 #define IPOPTP_ERROR 0x00000001
177 178 #endif /* _KERNEL */
178 179
179 180 /* Controls forwarding of IP packets, set via ipadm(1M)/ndd(1M) */
180 181 #define IP_FORWARD_NEVER 0
181 182 #define IP_FORWARD_ALWAYS 1
182 183
183 184 #define WE_ARE_FORWARDING(ipst) ((ipst)->ips_ip_forwarding == IP_FORWARD_ALWAYS)
184 185
185 186 #define IPH_HDR_LENGTH(ipha) \
186 187 ((int)(((ipha_t *)ipha)->ipha_version_and_hdr_length & 0xF) << 2)
187 188
188 189 #define IPH_HDR_VERSION(ipha) \
189 190 ((int)(((ipha_t *)ipha)->ipha_version_and_hdr_length) >> 4)
190 191
191 192 #ifdef _KERNEL
192 193 /*
193 194 * IP reassembly macros. We hide starting and ending offsets in b_next and
194 195 * b_prev of messages on the reassembly queue. The messages are chained using
195 196 * b_cont. These macros are used in ip_reassemble() so we don't have to see
196 197 * the ugly casts and assignments.
197 198 * Note that the offsets are <= 64k i.e. a uint_t is sufficient to represent
198 199 * them.
199 200 */
200 201 #define IP_REASS_START(mp) ((uint_t)(uintptr_t)((mp)->b_next))
201 202 #define IP_REASS_SET_START(mp, u) \
202 203 ((mp)->b_next = (mblk_t *)(uintptr_t)(u))
203 204 #define IP_REASS_END(mp) ((uint_t)(uintptr_t)((mp)->b_prev))
204 205 #define IP_REASS_SET_END(mp, u) \
205 206 ((mp)->b_prev = (mblk_t *)(uintptr_t)(u))
206 207
207 208 #define IP_REASS_COMPLETE 0x1
208 209 #define IP_REASS_PARTIAL 0x2
209 210 #define IP_REASS_FAILED 0x4
210 211
211 212 /*
212 213 * Test to determine whether this is a module instance of IP or a
213 214 * driver instance of IP.
214 215 */
215 216 #define CONN_Q(q) (WR(q)->q_next == NULL)
216 217
217 218 #define Q_TO_CONN(q) ((conn_t *)(q)->q_ptr)
218 219 #define Q_TO_TCP(q) (Q_TO_CONN((q))->conn_tcp)
219 220 #define Q_TO_UDP(q) (Q_TO_CONN((q))->conn_udp)
220 221 #define Q_TO_ICMP(q) (Q_TO_CONN((q))->conn_icmp)
221 222 #define Q_TO_RTS(q) (Q_TO_CONN((q))->conn_rts)
222 223
223 224 #define CONNP_TO_WQ(connp) ((connp)->conn_wq)
224 225 #define CONNP_TO_RQ(connp) ((connp)->conn_rq)
225 226
226 227 #define GRAB_CONN_LOCK(q) { \
227 228 if (q != NULL && CONN_Q(q)) \
228 229 mutex_enter(&(Q_TO_CONN(q))->conn_lock); \
229 230 }
230 231
231 232 #define RELEASE_CONN_LOCK(q) { \
232 233 if (q != NULL && CONN_Q(q)) \
233 234 mutex_exit(&(Q_TO_CONN(q))->conn_lock); \
234 235 }
235 236
236 237 /*
237 238 * Ref counter macros for ioctls. This provides a guard for TCP to stop
238 239 * tcp_close from removing the rq/wq whilst an ioctl is still in flight on the
239 240 * stream. The ioctl could have been queued on e.g. an ipsq. tcp_close will wait
240 241 * until the ioctlref count is zero before proceeding.
241 242 * Ideally conn_oper_pending_ill would be used for this purpose. However, in the
242 243 * case where an ioctl is aborted or interrupted, it can be cleared prematurely.
243 244 * There are also some race possibilities between ip and the stream head which
244 245 * can also end up with conn_oper_pending_ill being cleared prematurely. So, to
245 246 * avoid these situations, we use a dedicated ref counter for ioctls which is
246 247 * used in addition to and in parallel with the normal conn_ref count.
247 248 */
248 249 #define CONN_INC_IOCTLREF_LOCKED(connp) { \
249 250 ASSERT(MUTEX_HELD(&(connp)->conn_lock)); \
250 251 DTRACE_PROBE1(conn__inc__ioctlref, conn_t *, (connp)); \
251 252 (connp)->conn_ioctlref++; \
252 253 mutex_exit(&(connp)->conn_lock); \
253 254 }
254 255
255 256 #define CONN_INC_IOCTLREF(connp) { \
256 257 mutex_enter(&(connp)->conn_lock); \
257 258 CONN_INC_IOCTLREF_LOCKED(connp); \
258 259 }
259 260
260 261 #define CONN_DEC_IOCTLREF(connp) { \
261 262 mutex_enter(&(connp)->conn_lock); \
262 263 DTRACE_PROBE1(conn__dec__ioctlref, conn_t *, (connp)); \
263 264 /* Make sure conn_ioctlref will not underflow. */ \
264 265 ASSERT((connp)->conn_ioctlref != 0); \
265 266 if ((--(connp)->conn_ioctlref == 0) && \
266 267 ((connp)->conn_state_flags & CONN_CLOSING)) { \
267 268 cv_broadcast(&(connp)->conn_cv); \
268 269 } \
269 270 mutex_exit(&(connp)->conn_lock); \
270 271 }
271 272
272 273
273 274 /*
274 275 * Complete the pending operation. Usually an ioctl. Can also
275 276 * be a bind or option management request that got enqueued
276 277 * in an ipsq_t. Called on completion of the operation.
277 278 */
278 279 #define CONN_OPER_PENDING_DONE(connp) { \
279 280 mutex_enter(&(connp)->conn_lock); \
280 281 (connp)->conn_oper_pending_ill = NULL; \
281 282 cv_broadcast(&(connp)->conn_refcv); \
282 283 mutex_exit(&(connp)->conn_lock); \
283 284 CONN_DEC_REF(connp); \
284 285 }
285 286
286 287 /*
287 288 * Values for squeue switch:
288 289 */
289 290 #define IP_SQUEUE_ENTER_NODRAIN 1
290 291 #define IP_SQUEUE_ENTER 2
291 292 #define IP_SQUEUE_FILL 3
292 293
293 294 extern int ip_squeue_flag;
294 295
295 296 /* IP Fragmentation Reassembly Header */
296 297 typedef struct ipf_s {
297 298 struct ipf_s *ipf_hash_next;
298 299 struct ipf_s **ipf_ptphn; /* Pointer to previous hash next. */
299 300 uint32_t ipf_ident; /* Ident to match. */
300 301 uint8_t ipf_protocol; /* Protocol to match. */
301 302 uchar_t ipf_last_frag_seen : 1; /* Last fragment seen ? */
302 303 time_t ipf_timestamp; /* Reassembly start time. */
303 304 mblk_t *ipf_mp; /* mblk we live in. */
304 305 mblk_t *ipf_tail_mp; /* Frag queue tail pointer. */
305 306 int ipf_hole_cnt; /* Number of holes (hard-case). */
306 307 int ipf_end; /* Tail end offset (0 -> hard-case). */
307 308 uint_t ipf_gen; /* Frag queue generation */
308 309 size_t ipf_count; /* Count of bytes used by frag */
309 310 uint_t ipf_nf_hdr_len; /* Length of nonfragmented header */
310 311 in6_addr_t ipf_v6src; /* IPv6 source address */
311 312 in6_addr_t ipf_v6dst; /* IPv6 dest address */
312 313 uint_t ipf_prev_nexthdr_offset; /* Offset for nexthdr value */
313 314 uint8_t ipf_ecn; /* ECN info for the fragments */
314 315 uint8_t ipf_num_dups; /* Number of times dup frags recvd */
315 316 uint16_t ipf_checksum_flags; /* Hardware checksum flags */
316 317 uint32_t ipf_checksum; /* Partial checksum of fragment data */
317 318 } ipf_t;
318 319
319 320 /*
320 321 * IPv4 Fragments
321 322 */
322 323 #define IS_V4_FRAGMENT(ipha_fragment_offset_and_flags) \
323 324 (((ntohs(ipha_fragment_offset_and_flags) & IPH_OFFSET) != 0) || \
324 325 ((ntohs(ipha_fragment_offset_and_flags) & IPH_MF) != 0))
325 326
326 327 #define ipf_src V4_PART_OF_V6(ipf_v6src)
327 328 #define ipf_dst V4_PART_OF_V6(ipf_v6dst)
328 329
329 330 #endif /* _KERNEL */
330 331
331 332 /* ICMP types */
332 333 #define ICMP_ECHO_REPLY 0
333 334 #define ICMP_DEST_UNREACHABLE 3
334 335 #define ICMP_SOURCE_QUENCH 4
335 336 #define ICMP_REDIRECT 5
336 337 #define ICMP_ECHO_REQUEST 8
337 338 #define ICMP_ROUTER_ADVERTISEMENT 9
338 339 #define ICMP_ROUTER_SOLICITATION 10
339 340 #define ICMP_TIME_EXCEEDED 11
340 341 #define ICMP_PARAM_PROBLEM 12
341 342 #define ICMP_TIME_STAMP_REQUEST 13
342 343 #define ICMP_TIME_STAMP_REPLY 14
343 344 #define ICMP_INFO_REQUEST 15
344 345 #define ICMP_INFO_REPLY 16
345 346 #define ICMP_ADDRESS_MASK_REQUEST 17
346 347 #define ICMP_ADDRESS_MASK_REPLY 18
347 348
348 349 /* Evaluates to true if the ICMP type is an ICMP error */
349 350 #define ICMP_IS_ERROR(type) ( \
350 351 (type) == ICMP_DEST_UNREACHABLE || \
351 352 (type) == ICMP_SOURCE_QUENCH || \
352 353 (type) == ICMP_TIME_EXCEEDED || \
353 354 (type) == ICMP_PARAM_PROBLEM)
354 355
355 356 /* ICMP_TIME_EXCEEDED codes */
356 357 #define ICMP_TTL_EXCEEDED 0
357 358 #define ICMP_REASSEMBLY_TIME_EXCEEDED 1
358 359
359 360 /* ICMP_DEST_UNREACHABLE codes */
360 361 #define ICMP_NET_UNREACHABLE 0
361 362 #define ICMP_HOST_UNREACHABLE 1
362 363 #define ICMP_PROTOCOL_UNREACHABLE 2
363 364 #define ICMP_PORT_UNREACHABLE 3
364 365 #define ICMP_FRAGMENTATION_NEEDED 4
365 366 #define ICMP_SOURCE_ROUTE_FAILED 5
366 367 #define ICMP_DEST_NET_UNKNOWN 6
367 368 #define ICMP_DEST_HOST_UNKNOWN 7
368 369 #define ICMP_SRC_HOST_ISOLATED 8
369 370 #define ICMP_DEST_NET_UNREACH_ADMIN 9
370 371 #define ICMP_DEST_HOST_UNREACH_ADMIN 10
371 372 #define ICMP_DEST_NET_UNREACH_TOS 11
372 373 #define ICMP_DEST_HOST_UNREACH_TOS 12
373 374
374 375 /* ICMP Header Structure */
375 376 typedef struct icmph_s {
376 377 uint8_t icmph_type;
377 378 uint8_t icmph_code;
378 379 uint16_t icmph_checksum;
379 380 union {
380 381 struct { /* ECHO request/response structure */
381 382 uint16_t u_echo_ident;
382 383 uint16_t u_echo_seqnum;
383 384 } u_echo;
384 385 struct { /* Destination unreachable structure */
385 386 uint16_t u_du_zero;
386 387 uint16_t u_du_mtu;
387 388 } u_du;
388 389 struct { /* Parameter problem structure */
389 390 uint8_t u_pp_ptr;
390 391 uint8_t u_pp_rsvd[3];
391 392 } u_pp;
392 393 struct { /* Redirect structure */
393 394 ipaddr_t u_rd_gateway;
394 395 } u_rd;
395 396 } icmph_u;
396 397 } icmph_t;
397 398
398 399 #define icmph_echo_ident icmph_u.u_echo.u_echo_ident
399 400 #define icmph_echo_seqnum icmph_u.u_echo.u_echo_seqnum
400 401 #define icmph_du_zero icmph_u.u_du.u_du_zero
401 402 #define icmph_du_mtu icmph_u.u_du.u_du_mtu
402 403 #define icmph_pp_ptr icmph_u.u_pp.u_pp_ptr
403 404 #define icmph_rd_gateway icmph_u.u_rd.u_rd_gateway
404 405
405 406 #define ICMPH_SIZE 8
406 407
407 408 /*
408 409 * Minimum length of transport layer header included in an ICMP error
409 410 * message for it to be considered valid.
410 411 */
411 412 #define ICMP_MIN_TP_HDR_LEN 8
412 413
413 414 /* Aligned IP header */
414 415 typedef struct ipha_s {
415 416 uint8_t ipha_version_and_hdr_length;
416 417 uint8_t ipha_type_of_service;
417 418 uint16_t ipha_length;
418 419 uint16_t ipha_ident;
419 420 uint16_t ipha_fragment_offset_and_flags;
420 421 uint8_t ipha_ttl;
421 422 uint8_t ipha_protocol;
422 423 uint16_t ipha_hdr_checksum;
423 424 ipaddr_t ipha_src;
424 425 ipaddr_t ipha_dst;
425 426 } ipha_t;
426 427
427 428 /*
428 429 * IP Flags
429 430 *
430 431 * Some of these constant names are copied for the DTrace IP provider in
431 432 * usr/src/lib/libdtrace/common/{ip.d.in, ip.sed.in}, which should be kept
432 433 * in sync.
433 434 */
434 435 #define IPH_DF 0x4000 /* Don't fragment */
435 436 #define IPH_MF 0x2000 /* More fragments to come */
436 437 #define IPH_OFFSET 0x1FFF /* Where the offset lives */
437 438
438 439 /* Byte-order specific values */
439 440 #ifdef _BIG_ENDIAN
440 441 #define IPH_DF_HTONS 0x4000 /* Don't fragment */
441 442 #define IPH_MF_HTONS 0x2000 /* More fragments to come */
442 443 #define IPH_OFFSET_HTONS 0x1FFF /* Where the offset lives */
443 444 #else
444 445 #define IPH_DF_HTONS 0x0040 /* Don't fragment */
445 446 #define IPH_MF_HTONS 0x0020 /* More fragments to come */
446 447 #define IPH_OFFSET_HTONS 0xFF1F /* Where the offset lives */
447 448 #endif
448 449
449 450 /* ECN code points for IPv4 TOS byte and IPv6 traffic class octet. */
450 451 #define IPH_ECN_NECT 0x0 /* Not ECN-Capable Transport */
451 452 #define IPH_ECN_ECT1 0x1 /* ECN-Capable Transport, ECT(1) */
452 453 #define IPH_ECN_ECT0 0x2 /* ECN-Capable Transport, ECT(0) */
453 454 #define IPH_ECN_CE 0x3 /* ECN-Congestion Experienced (CE) */
454 455
455 456 struct ill_s;
456 457
457 458 typedef void ip_v6intfid_func_t(struct ill_s *, in6_addr_t *);
458 459 typedef void ip_v6mapinfo_func_t(struct ill_s *, uchar_t *, uchar_t *);
459 460 typedef void ip_v4mapinfo_func_t(struct ill_s *, uchar_t *, uchar_t *);
460 461
461 462 /* IP Mac info structure */
462 463 typedef struct ip_m_s {
463 464 t_uscalar_t ip_m_mac_type; /* From <sys/dlpi.h> */
464 465 int ip_m_type; /* From <net/if_types.h> */
465 466 t_uscalar_t ip_m_ipv4sap;
466 467 t_uscalar_t ip_m_ipv6sap;
467 468 ip_v4mapinfo_func_t *ip_m_v4mapping;
468 469 ip_v6mapinfo_func_t *ip_m_v6mapping;
469 470 ip_v6intfid_func_t *ip_m_v6intfid;
470 471 ip_v6intfid_func_t *ip_m_v6destintfid;
471 472 } ip_m_t;
472 473
473 474 /*
474 475 * The following functions attempt to reduce the link layer dependency
475 476 * of the IP stack. The current set of link specific operations are:
476 477 * a. map from IPv4 class D (224.0/4) multicast address range or the
477 478 * IPv6 multicast address range (ff00::/8) to the link layer multicast
478 479 * address.
479 480 * b. derive the default IPv6 interface identifier from the interface.
480 481 * c. derive the default IPv6 destination interface identifier from
481 482 * the interface (point-to-point only).
482 483 */
483 484 extern void ip_mcast_mapping(struct ill_s *, uchar_t *, uchar_t *);
484 485 /* ip_m_v6*intfid return void and are never NULL */
485 486 #define MEDIA_V6INTFID(ip_m, ill, v6ptr) (ip_m)->ip_m_v6intfid(ill, v6ptr)
486 487 #define MEDIA_V6DESTINTFID(ip_m, ill, v6ptr) \
487 488 (ip_m)->ip_m_v6destintfid(ill, v6ptr)
488 489
489 490 /* Router entry types */
490 491 #define IRE_BROADCAST 0x0001 /* Route entry for broadcast address */
491 492 #define IRE_DEFAULT 0x0002 /* Route entry for default gateway */
492 493 #define IRE_LOCAL 0x0004 /* Route entry for local address */
493 494 #define IRE_LOOPBACK 0x0008 /* Route entry for loopback address */
494 495 #define IRE_PREFIX 0x0010 /* Route entry for prefix routes */
495 496 #ifndef _KERNEL
496 497 /* Keep so user-level still compiles */
497 498 #define IRE_CACHE 0x0020 /* Cached Route entry */
498 499 #endif
499 500 #define IRE_IF_NORESOLVER 0x0040 /* Route entry for local interface */
500 501 /* net without any address mapping. */
501 502 #define IRE_IF_RESOLVER 0x0080 /* Route entry for local interface */
502 503 /* net with resolver. */
503 504 #define IRE_HOST 0x0100 /* Host route entry */
504 505 /* Keep so user-level still compiles */
505 506 #define IRE_HOST_REDIRECT 0x0200 /* only used for T_SVR4_OPTMGMT_REQ */
506 507 #define IRE_IF_CLONE 0x0400 /* Per host clone of IRE_IF */
507 508 #define IRE_MULTICAST 0x0800 /* Special - not in table */
508 509 #define IRE_NOROUTE 0x1000 /* Special - not in table */
509 510
510 511 #define IRE_INTERFACE (IRE_IF_NORESOLVER | IRE_IF_RESOLVER)
511 512
512 513 #define IRE_IF_ALL (IRE_IF_NORESOLVER | IRE_IF_RESOLVER | \
513 514 IRE_IF_CLONE)
514 515 #define IRE_OFFSUBNET (IRE_DEFAULT | IRE_PREFIX | IRE_HOST)
515 516 #define IRE_OFFLINK IRE_OFFSUBNET
516 517 /*
517 518 * Note that we view IRE_NOROUTE as ONLINK since we can "send" to them without
518 519 * going through a router; the result of sending will be an error/icmp error.
519 520 */
520 521 #define IRE_ONLINK (IRE_IF_ALL|IRE_LOCAL|IRE_LOOPBACK| \
521 522 IRE_BROADCAST|IRE_MULTICAST|IRE_NOROUTE)
522 523
523 524 /* Arguments to ire_flush_cache() */
524 525 #define IRE_FLUSH_DELETE 0
525 526 #define IRE_FLUSH_ADD 1
526 527 #define IRE_FLUSH_GWCHANGE 2
527 528
528 529 /*
529 530 * Flags to ire_route_recursive
530 531 */
531 532 #define IRR_NONE 0
532 533 #define IRR_ALLOCATE 1 /* OK to allocate IRE_IF_CLONE */
533 534 #define IRR_INCOMPLETE 2 /* OK to return incomplete chain */
534 535
535 536 /*
536 537 * Open/close synchronization flags.
537 538 * These are kept in a separate field in the conn and the synchronization
538 539 * depends on the atomic 32 bit access to that field.
539 540 */
540 541 #define CONN_CLOSING 0x01 /* ip_close waiting for ip_wsrv */
541 542 #define CONN_CONDEMNED 0x02 /* conn is closing, no more refs */
542 543 #define CONN_INCIPIENT 0x04 /* conn not yet visible, no refs */
543 544 #define CONN_QUIESCED 0x08 /* conn is now quiescent */
544 545 #define CONN_UPDATE_ILL 0x10 /* conn_update_ill in progress */
545 546
546 547 /*
547 548 * Flags for dce_flags field. Specifies which information has been set.
548 549 * dce_ident is always present, but the other ones are identified by the flags.
549 550 */
550 551 #define DCEF_DEFAULT 0x0001 /* Default DCE - no pmtu or uinfo */
551 552 #define DCEF_PMTU 0x0002 /* Different than interface MTU */
552 553 #define DCEF_UINFO 0x0004 /* dce_uinfo set */
553 554 #define DCEF_TOO_SMALL_PMTU 0x0008 /* Smaller than IPv4/IPv6 MIN */
554 555
555 556 #ifdef _KERNEL
556 557 /*
557 558 * Extra structures need for per-src-addr filtering (IGMPv3/MLDv2)
558 559 */
559 560 #define MAX_FILTER_SIZE 64
560 561
561 562 typedef struct slist_s {
562 563 int sl_numsrc;
563 564 in6_addr_t sl_addr[MAX_FILTER_SIZE];
564 565 } slist_t;
565 566
566 567 /*
567 568 * Following struct is used to maintain retransmission state for
568 569 * a multicast group. One rtx_state_t struct is an in-line field
569 570 * of the ilm_t struct; the slist_ts in the rtx_state_t struct are
570 571 * alloc'd as needed.
571 572 */
572 573 typedef struct rtx_state_s {
573 574 uint_t rtx_timer; /* retrans timer */
574 575 int rtx_cnt; /* retrans count */
575 576 int rtx_fmode_cnt; /* retrans count for fmode change */
576 577 slist_t *rtx_allow;
577 578 slist_t *rtx_block;
578 579 } rtx_state_t;
579 580
580 581 /*
581 582 * Used to construct list of multicast address records that will be
582 583 * sent in a single listener report.
583 584 */
584 585 typedef struct mrec_s {
585 586 struct mrec_s *mrec_next;
586 587 uint8_t mrec_type;
587 588 uint8_t mrec_auxlen; /* currently unused */
588 589 in6_addr_t mrec_group;
589 590 slist_t mrec_srcs;
590 591 } mrec_t;
591 592
592 593 /* Group membership list per upper conn */
593 594
594 595 /*
595 596 * We record the multicast information from the socket option in
596 597 * ilg_ifaddr/ilg_ifindex. This allows rejoining the group in the case when
597 598 * the ifaddr (or ifindex) disappears and later reappears, potentially on
598 599 * a different ill. The IPv6 multicast socket options and ioctls all specify
599 600 * the interface using an ifindex. For IPv4 some socket options/ioctls use
600 601 * the interface address and others use the index. We record here the method
601 602 * that was actually used (and leave the other of ilg_ifaddr or ilg_ifindex)
602 603 * at zero so that we can rejoin the way the application intended.
603 604 *
604 605 * We track the ill on which we will or already have joined an ilm using
605 606 * ilg_ill. When we have succeeded joining the ilm and have a refhold on it
606 607 * then we set ilg_ilm. Thus intentionally there is a window where ilg_ill is
607 608 * set and ilg_ilm is not set. This allows clearing ilg_ill as a signal that
608 609 * the ill is being unplumbed and the ilm should be discarded.
609 610 *
610 611 * ilg records the state of multicast memberships of a socket end point.
611 612 * ilm records the state of multicast memberships with the driver and is
612 613 * maintained per interface.
613 614 *
614 615 * The ilg state is protected by conn_ilg_lock.
615 616 * The ilg will not be freed until ilg_refcnt drops to zero.
616 617 */
617 618 typedef struct ilg_s {
618 619 struct ilg_s *ilg_next;
619 620 struct ilg_s **ilg_ptpn;
620 621 struct conn_s *ilg_connp; /* Back pointer to get lock */
621 622 in6_addr_t ilg_v6group;
622 623 ipaddr_t ilg_ifaddr; /* For some IPv4 cases */
623 624 uint_t ilg_ifindex; /* IPv6 and some other IPv4 cases */
624 625 struct ill_s *ilg_ill; /* Where ilm is joined. No refhold */
625 626 struct ilm_s *ilg_ilm; /* With ilm_refhold */
626 627 uint_t ilg_refcnt;
627 628 mcast_record_t ilg_fmode; /* MODE_IS_INCLUDE/MODE_IS_EXCLUDE */
628 629 slist_t *ilg_filter;
629 630 boolean_t ilg_condemned; /* Conceptually deleted */
630 631 } ilg_t;
631 632
632 633 /*
633 634 * Multicast address list entry for ill.
634 635 * ilm_ill is used by IPv4 and IPv6
635 636 *
636 637 * The ilm state (and other multicast state on the ill) is protected by
637 638 * ill_mcast_lock. Operations that change state on both an ilg and ilm
638 639 * in addition use ill_mcast_serializer to ensure that we can't have
639 640 * interleaving between e.g., add and delete operations for the same conn_t,
640 641 * group, and ill. The ill_mcast_serializer is also used to ensure that
641 642 * multicast group joins do not occur on an interface that is in the process
642 643 * of joining an IPMP group.
643 644 *
644 645 * The comment below (and for other netstack_t references) refers
645 646 * to the fact that we only do netstack_hold in particular cases,
646 647 * such as the references from open endpoints (ill_t and conn_t's
647 648 * pointers). Internally within IP we rely on IP's ability to cleanup e.g.
648 649 * ire_t's when an ill goes away.
649 650 */
650 651 typedef struct ilm_s {
651 652 in6_addr_t ilm_v6addr;
652 653 int ilm_refcnt;
653 654 uint_t ilm_timer; /* IGMP/MLD query resp timer, in msec */
654 655 struct ilm_s *ilm_next; /* Linked list for each ill */
655 656 uint_t ilm_state; /* state of the membership */
656 657 struct ill_s *ilm_ill; /* Back pointer to ill - ill_ilm_cnt */
657 658 zoneid_t ilm_zoneid;
658 659 int ilm_no_ilg_cnt; /* number of joins w/ no ilg */
659 660 mcast_record_t ilm_fmode; /* MODE_IS_INCLUDE/MODE_IS_EXCLUDE */
660 661 slist_t *ilm_filter; /* source filter list */
661 662 slist_t *ilm_pendsrcs; /* relevant src addrs for pending req */
662 663 rtx_state_t ilm_rtx; /* SCR retransmission state */
663 664 ipaddr_t ilm_ifaddr; /* For IPv4 netstat */
664 665 ip_stack_t *ilm_ipst; /* Does not have a netstack_hold */
665 666 } ilm_t;
666 667
667 668 #define ilm_addr V4_PART_OF_V6(ilm_v6addr)
668 669
669 670 /*
670 671 * Soft reference to an IPsec SA.
671 672 *
672 673 * On relative terms, conn's can be persistent (living as long as the
673 674 * processes which create them), while SA's are ephemeral (dying when
674 675 * they hit their time-based or byte-based lifetimes).
675 676 *
676 677 * We could hold a hard reference to an SA from an ipsec_latch_t,
677 678 * but this would cause expired SA's to linger for a potentially
678 679 * unbounded time.
679 680 *
680 681 * Instead, we remember the hash bucket number and bucket generation
681 682 * in addition to the pointer. The bucket generation is incremented on
682 683 * each deletion.
683 684 */
684 685 typedef struct ipsa_ref_s
685 686 {
686 687 struct ipsa_s *ipsr_sa;
687 688 struct isaf_s *ipsr_bucket;
688 689 uint64_t ipsr_gen;
689 690 } ipsa_ref_t;
690 691
691 692 /*
692 693 * IPsec "latching" state.
693 694 *
694 695 * In the presence of IPsec policy, fully-bound conn's bind a connection
695 696 * to more than just the 5-tuple, but also a specific IPsec action and
696 697 * identity-pair.
697 698 * The identity pair is accessed from both the receive and transmit side
698 699 * hence it is maintained in the ipsec_latch_t structure. conn_latch and
699 700 * ixa_ipsec_latch points to it.
700 701 * The policy and actions are stored in conn_latch_in_policy and
701 702 * conn_latch_in_action for the inbound side, and in ixa_ipsec_policy and
702 703 * ixa_ipsec_action for the transmit side.
703 704 *
704 705 * As an optimization, we also cache soft references to IPsec SA's in
705 706 * ip_xmit_attr_t so that we can fast-path around most of the work needed for
706 707 * outbound IPsec SA selection.
707 708 */
708 709 typedef struct ipsec_latch_s
709 710 {
710 711 kmutex_t ipl_lock;
711 712 uint32_t ipl_refcnt;
712 713
713 714 struct ipsid_s *ipl_local_cid;
714 715 struct ipsid_s *ipl_remote_cid;
715 716 unsigned int
716 717 ipl_ids_latched : 1,
717 718
718 719 ipl_pad_to_bit_31 : 31;
719 720 } ipsec_latch_t;
720 721
721 722 #define IPLATCH_REFHOLD(ipl) { \
722 723 atomic_add_32(&(ipl)->ipl_refcnt, 1); \
723 724 ASSERT((ipl)->ipl_refcnt != 0); \
724 725 }
725 726
726 727 #define IPLATCH_REFRELE(ipl) { \
727 728 ASSERT((ipl)->ipl_refcnt != 0); \
728 729 membar_exit(); \
729 730 if (atomic_add_32_nv(&(ipl)->ipl_refcnt, -1) == 0) \
730 731 iplatch_free(ipl); \
731 732 }
732 733
733 734 /*
734 735 * peer identity structure.
735 736 */
736 737 typedef struct conn_s conn_t;
737 738
738 739 /*
739 740 * This is used to match an inbound/outbound datagram with policy.
740 741 */
741 742 typedef struct ipsec_selector {
742 743 in6_addr_t ips_local_addr_v6;
743 744 in6_addr_t ips_remote_addr_v6;
744 745 uint16_t ips_local_port;
745 746 uint16_t ips_remote_port;
746 747 uint8_t ips_icmp_type;
747 748 uint8_t ips_icmp_code;
748 749 uint8_t ips_protocol;
749 750 uint8_t ips_isv4 : 1,
750 751 ips_is_icmp_inv_acq: 1;
751 752 } ipsec_selector_t;
752 753
753 754 /*
754 755 * Note that we put v4 addresses in the *first* 32-bit word of the
755 756 * selector rather than the last to simplify the prefix match/mask code
756 757 * in spd.c
757 758 */
758 759 #define ips_local_addr_v4 ips_local_addr_v6.s6_addr32[0]
759 760 #define ips_remote_addr_v4 ips_remote_addr_v6.s6_addr32[0]
760 761
761 762 /* Values used in IP by IPSEC Code */
762 763 #define IPSEC_OUTBOUND B_TRUE
763 764 #define IPSEC_INBOUND B_FALSE
764 765
765 766 /*
766 767 * There are two variants in policy failures. The packet may come in
767 768 * secure when not needed (IPSEC_POLICY_???_NOT_NEEDED) or it may not
768 769 * have the desired level of protection (IPSEC_POLICY_MISMATCH).
769 770 */
770 771 #define IPSEC_POLICY_NOT_NEEDED 0
771 772 #define IPSEC_POLICY_MISMATCH 1
772 773 #define IPSEC_POLICY_AUTH_NOT_NEEDED 2
773 774 #define IPSEC_POLICY_ENCR_NOT_NEEDED 3
774 775 #define IPSEC_POLICY_SE_NOT_NEEDED 4
775 776 #define IPSEC_POLICY_MAX 5 /* Always max + 1. */
776 777
777 778 /*
778 779 * Check with IPSEC inbound policy if
779 780 *
780 781 * 1) per-socket policy is present - indicated by conn_in_enforce_policy.
781 782 * 2) Or if we have not cached policy on the conn and the global policy is
782 783 * non-empty.
783 784 */
784 785 #define CONN_INBOUND_POLICY_PRESENT(connp, ipss) \
785 786 ((connp)->conn_in_enforce_policy || \
786 787 (!((connp)->conn_policy_cached) && \
787 788 (ipss)->ipsec_inbound_v4_policy_present))
788 789
789 790 #define CONN_INBOUND_POLICY_PRESENT_V6(connp, ipss) \
790 791 ((connp)->conn_in_enforce_policy || \
791 792 (!(connp)->conn_policy_cached && \
792 793 (ipss)->ipsec_inbound_v6_policy_present))
793 794
794 795 #define CONN_OUTBOUND_POLICY_PRESENT(connp, ipss) \
795 796 ((connp)->conn_out_enforce_policy || \
796 797 (!((connp)->conn_policy_cached) && \
797 798 (ipss)->ipsec_outbound_v4_policy_present))
798 799
799 800 #define CONN_OUTBOUND_POLICY_PRESENT_V6(connp, ipss) \
800 801 ((connp)->conn_out_enforce_policy || \
801 802 (!(connp)->conn_policy_cached && \
802 803 (ipss)->ipsec_outbound_v6_policy_present))
803 804
804 805 /*
805 806 * Information cached in IRE for upper layer protocol (ULP).
806 807 */
807 808 typedef struct iulp_s {
808 809 boolean_t iulp_set; /* Is any metric set? */
809 810 uint32_t iulp_ssthresh; /* Slow start threshold (TCP). */
810 811 clock_t iulp_rtt; /* Guestimate in millisecs. */
811 812 clock_t iulp_rtt_sd; /* Cached value of RTT variance. */
812 813 uint32_t iulp_spipe; /* Send pipe size. */
813 814 uint32_t iulp_rpipe; /* Receive pipe size. */
814 815 uint32_t iulp_rtomax; /* Max round trip timeout. */
815 816 uint32_t iulp_sack; /* Use SACK option (TCP)? */
816 817 uint32_t iulp_mtu; /* Setable with routing sockets */
817 818
818 819 uint32_t
819 820 iulp_tstamp_ok : 1, /* Use timestamp option (TCP)? */
820 821 iulp_wscale_ok : 1, /* Use window scale option (TCP)? */
821 822 iulp_ecn_ok : 1, /* Enable ECN (for TCP)? */
822 823 iulp_pmtud_ok : 1, /* Enable PMTUd? */
823 824
824 825 /* These three are passed out by ip_set_destination */
825 826 iulp_localnet: 1, /* IRE_ONLINK */
826 827 iulp_loopback: 1, /* IRE_LOOPBACK */
827 828 iulp_local: 1, /* IRE_LOCAL */
828 829
829 830 iulp_not_used : 25;
830 831 } iulp_t;
831 832
832 833 /*
833 834 * The conn drain list structure (idl_t), protected by idl_lock. Each conn_t
834 835 * inserted in the list points back at this idl_t using conn_idl, and is
835 836 * chained by conn_drain_next and conn_drain_prev, which are also protected by
836 837 * idl_lock. When flow control is relieved, either ip_wsrv() (STREAMS) or
837 838 * ill_flow_enable() (non-STREAMS) will call conn_drain().
838 839 *
839 840 * The conn drain list, idl_t, itself is part of tx cookie list structure.
840 841 * A tx cookie list points to a blocked Tx ring and contains the list of
841 842 * all conn's that are blocked due to the flow-controlled Tx ring (via
842 843 * the idl drain list). Note that a link can have multiple Tx rings. The
843 844 * drain list will store the conn's blocked due to Tx ring being flow
844 845 * controlled.
845 846 */
846 847
847 848 typedef uintptr_t ip_mac_tx_cookie_t;
848 849 typedef struct idl_s idl_t;
849 850 typedef struct idl_tx_list_s idl_tx_list_t;
850 851
851 852 struct idl_tx_list_s {
852 853 ip_mac_tx_cookie_t txl_cookie;
853 854 kmutex_t txl_lock; /* Lock for this list */
854 855 idl_t *txl_drain_list;
855 856 int txl_drain_index;
856 857 };
857 858
858 859 struct idl_s {
859 860 conn_t *idl_conn; /* Head of drain list */
860 861 kmutex_t idl_lock; /* Lock for this list */
861 862 idl_tx_list_t *idl_itl;
862 863 };
863 864
864 865 /*
865 866 * Interface route structure which holds the necessary information to recreate
866 867 * routes that are tied to an interface i.e. have ire_ill set.
867 868 *
868 869 * These routes which were initially created via a routing socket or via the
869 870 * SIOCADDRT ioctl may be gateway routes (RTF_GATEWAY being set) or may be
870 871 * traditional interface routes. When an ill comes back up after being
871 872 * down, this information will be used to recreate the routes. These
872 873 * are part of an mblk_t chain that hangs off of the ILL (ill_saved_ire_mp).
873 874 */
874 875 typedef struct ifrt_s {
875 876 ushort_t ifrt_type; /* Type of IRE */
876 877 in6_addr_t ifrt_v6addr; /* Address IRE represents. */
877 878 in6_addr_t ifrt_v6gateway_addr; /* Gateway if IRE_OFFLINK */
878 879 in6_addr_t ifrt_v6setsrc_addr; /* Src addr if RTF_SETSRC */
879 880 in6_addr_t ifrt_v6mask; /* Mask for matching IRE. */
880 881 uint32_t ifrt_flags; /* flags related to route */
881 882 iulp_t ifrt_metrics; /* Routing socket metrics */
882 883 zoneid_t ifrt_zoneid; /* zoneid for route */
883 884 } ifrt_t;
884 885
885 886 #define ifrt_addr V4_PART_OF_V6(ifrt_v6addr)
886 887 #define ifrt_gateway_addr V4_PART_OF_V6(ifrt_v6gateway_addr)
887 888 #define ifrt_mask V4_PART_OF_V6(ifrt_v6mask)
888 889 #define ifrt_setsrc_addr V4_PART_OF_V6(ifrt_v6setsrc_addr)
889 890
890 891 /* Number of IP addresses that can be hosted on a physical interface */
891 892 #define MAX_ADDRS_PER_IF 8192
892 893 /*
893 894 * Number of Source addresses to be considered for source address
894 895 * selection. Used by ipif_select_source_v4/v6.
895 896 */
896 897 #define MAX_IPIF_SELECT_SOURCE 50
897 898
898 899 #ifdef IP_DEBUG
899 900 /*
900 901 * Trace refholds and refreles for debugging.
901 902 */
902 903 #define TR_STACK_DEPTH 14
903 904 typedef struct tr_buf_s {
904 905 int tr_depth;
905 906 clock_t tr_time;
906 907 pc_t tr_stack[TR_STACK_DEPTH];
907 908 } tr_buf_t;
908 909
909 910 typedef struct th_trace_s {
910 911 int th_refcnt;
911 912 uint_t th_trace_lastref;
912 913 kthread_t *th_id;
913 914 #define TR_BUF_MAX 38
914 915 tr_buf_t th_trbuf[TR_BUF_MAX];
915 916 } th_trace_t;
916 917
917 918 typedef struct th_hash_s {
918 919 list_node_t thh_link;
919 920 mod_hash_t *thh_hash;
920 921 ip_stack_t *thh_ipst;
921 922 } th_hash_t;
922 923 #endif
923 924
924 925 /* The following are ipif_state_flags */
925 926 #define IPIF_CONDEMNED 0x1 /* The ipif is being removed */
926 927 #define IPIF_CHANGING 0x2 /* A critcal ipif field is changing */
927 928 #define IPIF_SET_LINKLOCAL 0x10 /* transient flag during bringup */
928 929
929 930 /* IP interface structure, one per local address */
930 931 typedef struct ipif_s {
931 932 struct ipif_s *ipif_next;
932 933 struct ill_s *ipif_ill; /* Back pointer to our ill */
933 934 int ipif_id; /* Logical unit number */
934 935 in6_addr_t ipif_v6lcl_addr; /* Local IP address for this if. */
935 936 in6_addr_t ipif_v6subnet; /* Subnet prefix for this if. */
936 937 in6_addr_t ipif_v6net_mask; /* Net mask for this interface. */
937 938 in6_addr_t ipif_v6brd_addr; /* Broadcast addr for this interface. */
938 939 in6_addr_t ipif_v6pp_dst_addr; /* Point-to-point dest address. */
939 940 uint64_t ipif_flags; /* Interface flags. */
940 941 uint_t ipif_ire_type; /* IRE_LOCAL or IRE_LOOPBACK */
941 942
942 943 /*
943 944 * The packet count in the ipif contain the sum of the
944 945 * packet counts in dead IRE_LOCAL/LOOPBACK for this ipif.
945 946 */
946 947 uint_t ipif_ib_pkt_count; /* Inbound packets for our dead IREs */
947 948
948 949 /* Exclusive bit fields, protected by ipsq_t */
949 950 unsigned int
950 951 ipif_was_up : 1, /* ipif was up before */
951 952 ipif_addr_ready : 1, /* DAD is done */
952 953 ipif_was_dup : 1, /* DAD had failed */
953 954 ipif_added_nce : 1, /* nce added for local address */
954 955
955 956 ipif_pad_to_31 : 28;
956 957
957 958 ilm_t *ipif_allhosts_ilm; /* For all-nodes join */
958 959 ilm_t *ipif_solmulti_ilm; /* For IPv6 solicited multicast join */
959 960
960 961 uint_t ipif_seqid; /* unique index across all ills */
961 962 uint_t ipif_state_flags; /* See IPIF_* flag defs above */
962 963 uint_t ipif_refcnt; /* active consistent reader cnt */
963 964
964 965 zoneid_t ipif_zoneid; /* zone ID number */
965 966 timeout_id_t ipif_recovery_id; /* Timer for DAD recovery */
966 967 boolean_t ipif_trace_disable; /* True when alloc fails */
967 968 /*
968 969 * For an IPMP interface, ipif_bound_ill tracks the ill whose hardware
969 970 * information this ipif is associated with via ARP/NDP. We can use
970 971 * an ill pointer (rather than an index) because only ills that are
971 972 * part of a group will be pointed to, and an ill cannot disappear
972 973 * while it's in a group.
973 974 */
974 975 struct ill_s *ipif_bound_ill;
975 976 struct ipif_s *ipif_bound_next; /* bound ipif chain */
976 977 boolean_t ipif_bound; /* B_TRUE if we successfully bound */
977 978
978 979 struct ire_s *ipif_ire_local; /* Our IRE_LOCAL or LOOPBACK */
979 980 struct ire_s *ipif_ire_if; /* Our IRE_INTERFACE */
980 981 } ipif_t;
981 982
982 983 /*
983 984 * The following table lists the protection levels of the various members
984 985 * of the ipif_t. The following notation is used.
985 986 *
986 987 * Write once - Written to only once at the time of bringing up
987 988 * the interface and can be safely read after the bringup without any lock.
988 989 *
989 990 * ipsq - Need to execute in the ipsq to perform the indicated access.
990 991 *
991 992 * ill_lock - Need to hold this mutex to perform the indicated access.
992 993 *
993 994 * ill_g_lock - Need to hold this rw lock as reader/writer for read access or
994 995 * write access respectively.
995 996 *
996 997 * down ill - Written to only when the ill is down (i.e all ipifs are down)
997 998 * up ill - Read only when the ill is up (i.e. at least 1 ipif is up)
998 999 *
999 1000 * Table of ipif_t members and their protection
1000 1001 *
1001 1002 * ipif_next ipsq + ill_lock + ipsq OR ill_lock OR
1002 1003 * ill_g_lock ill_g_lock
1003 1004 * ipif_ill ipsq + down ipif write once
1004 1005 * ipif_id ipsq + down ipif write once
1005 1006 * ipif_v6lcl_addr ipsq + down ipif up ipif
1006 1007 * ipif_v6subnet ipsq + down ipif up ipif
1007 1008 * ipif_v6net_mask ipsq + down ipif up ipif
1008 1009 *
1009 1010 * ipif_v6brd_addr
1010 1011 * ipif_v6pp_dst_addr
1011 1012 * ipif_flags ill_lock ill_lock
1012 1013 * ipif_ire_type ipsq + down ill up ill
1013 1014 *
1014 1015 * ipif_ib_pkt_count Approx
1015 1016 *
1016 1017 * bit fields ill_lock ill_lock
1017 1018 *
1018 1019 * ipif_allhosts_ilm ipsq ipsq
1019 1020 * ipif_solmulti_ilm ipsq ipsq
1020 1021 *
1021 1022 * ipif_seqid ipsq Write once
1022 1023 *
1023 1024 * ipif_state_flags ill_lock ill_lock
1024 1025 * ipif_refcnt ill_lock ill_lock
1025 1026 * ipif_bound_ill ipsq + ipmp_lock ipsq OR ipmp_lock
1026 1027 * ipif_bound_next ipsq ipsq
1027 1028 * ipif_bound ipsq ipsq
1028 1029 *
1029 1030 * ipif_ire_local ipsq + ips_ill_g_lock ipsq OR ips_ill_g_lock
1030 1031 * ipif_ire_if ipsq + ips_ill_g_lock ipsq OR ips_ill_g_lock
1031 1032 */
1032 1033
1033 1034 /*
1034 1035 * Return values from ip_laddr_verify_{v4,v6}
1035 1036 */
1036 1037 typedef enum { IPVL_UNICAST_UP, IPVL_UNICAST_DOWN, IPVL_MCAST, IPVL_BCAST,
1037 1038 IPVL_BAD} ip_laddr_t;
1038 1039
1039 1040
1040 1041 #define IP_TR_HASH(tid) ((((uintptr_t)tid) >> 6) & (IP_TR_HASH_MAX - 1))
1041 1042
1042 1043 #ifdef DEBUG
1043 1044 #define IPIF_TRACE_REF(ipif) ipif_trace_ref(ipif)
1044 1045 #define ILL_TRACE_REF(ill) ill_trace_ref(ill)
1045 1046 #define IPIF_UNTRACE_REF(ipif) ipif_untrace_ref(ipif)
1046 1047 #define ILL_UNTRACE_REF(ill) ill_untrace_ref(ill)
1047 1048 #else
1048 1049 #define IPIF_TRACE_REF(ipif)
1049 1050 #define ILL_TRACE_REF(ill)
1050 1051 #define IPIF_UNTRACE_REF(ipif)
1051 1052 #define ILL_UNTRACE_REF(ill)
1052 1053 #endif
1053 1054
1054 1055 /* IPv4 compatibility macros */
1055 1056 #define ipif_lcl_addr V4_PART_OF_V6(ipif_v6lcl_addr)
1056 1057 #define ipif_subnet V4_PART_OF_V6(ipif_v6subnet)
1057 1058 #define ipif_net_mask V4_PART_OF_V6(ipif_v6net_mask)
1058 1059 #define ipif_brd_addr V4_PART_OF_V6(ipif_v6brd_addr)
1059 1060 #define ipif_pp_dst_addr V4_PART_OF_V6(ipif_v6pp_dst_addr)
1060 1061
1061 1062 /* Macros for easy backreferences to the ill. */
1062 1063 #define ipif_isv6 ipif_ill->ill_isv6
1063 1064
1064 1065 #define SIOCLIFADDR_NDX 112 /* ndx of SIOCLIFADDR in the ndx ioctl table */
1065 1066
1066 1067 /*
1067 1068 * mode value for ip_ioctl_finish for finishing an ioctl
1068 1069 */
1069 1070 #define CONN_CLOSE 1 /* No mi_copy */
1070 1071 #define COPYOUT 2 /* do an mi_copyout if needed */
1071 1072 #define NO_COPYOUT 3 /* do an mi_copy_done */
1072 1073 #define IPI2MODE(ipi) ((ipi)->ipi_flags & IPI_GET_CMD ? COPYOUT : NO_COPYOUT)
1073 1074
1074 1075 /*
1075 1076 * The IP-MT design revolves around the serialization objects ipsq_t (IPSQ)
1076 1077 * and ipxop_t (exclusive operation or "xop"). Becoming "writer" on an IPSQ
1077 1078 * ensures that no other threads can become "writer" on any IPSQs sharing that
1078 1079 * IPSQ's xop until the writer thread is done.
1079 1080 *
1080 1081 * Each phyint points to one IPSQ that remains fixed over the phyint's life.
1081 1082 * Each IPSQ points to one xop that can change over the IPSQ's life. If a
1082 1083 * phyint is *not* in an IPMP group, then its IPSQ will refer to the IPSQ's
1083 1084 * "own" xop (ipsq_ownxop). If a phyint *is* part of an IPMP group, then its
1084 1085 * IPSQ will refer to the "group" xop, which is shorthand for the xop of the
1085 1086 * IPSQ of the IPMP meta-interface's phyint. Thus, all phyints that are part
1086 1087 * of the same IPMP group will have their IPSQ's point to the group xop, and
1087 1088 * thus becoming "writer" on any phyint in the group will prevent any other
1088 1089 * writer on any other phyint in the group. All IPSQs sharing the same xop
1089 1090 * are chained together through ipsq_next (in the degenerate common case,
1090 1091 * ipsq_next simply refers to itself). Note that the group xop is guaranteed
1091 1092 * to exist at least as long as there are members in the group, since the IPMP
1092 1093 * meta-interface can only be destroyed if the group is empty.
1093 1094 *
1094 1095 * Incoming exclusive operation requests are enqueued on the IPSQ they arrived
1095 1096 * on rather than the xop. This makes switching xop's (as would happen when a
1096 1097 * phyint leaves an IPMP group) simple, because after the phyint leaves the
1097 1098 * group, any operations enqueued on its IPSQ can be safely processed with
1098 1099 * respect to its new xop, and any operations enqueued on the IPSQs of its
1099 1100 * former group can be processed with respect to their existing group xop.
1100 1101 * Even so, switching xops is a subtle dance; see ipsq_dq() for details.
1101 1102 *
1102 1103 * An IPSQ's "own" xop is embedded within the IPSQ itself since they have have
1103 1104 * identical lifetimes, and because doing so simplifies pointer management.
1104 1105 * While each phyint and IPSQ point to each other, it is not possible to free
1105 1106 * the IPSQ when the phyint is freed, since we may still *inside* the IPSQ
1106 1107 * when the phyint is being freed. Thus, ipsq_phyint is set to NULL when the
1107 1108 * phyint is freed, and the IPSQ free is later done in ipsq_exit().
1108 1109 *
1109 1110 * ipsq_t synchronization: read write
1110 1111 *
1111 1112 * ipsq_xopq_mphead ipx_lock ipx_lock
1112 1113 * ipsq_xopq_mptail ipx_lock ipx_lock
1113 1114 * ipsq_xop_switch_mp ipsq_lock ipsq_lock
1114 1115 * ipsq_phyint write once write once
1115 1116 * ipsq_next RW_READER ill_g_lock RW_WRITER ill_g_lock
1116 1117 * ipsq_xop ipsq_lock or ipsq ipsq_lock + ipsq
1117 1118 * ipsq_swxop ipsq ipsq
1118 1119 * ipsq_ownxop see ipxop_t see ipxop_t
1119 1120 * ipsq_ipst write once write once
1120 1121 *
1121 1122 * ipxop_t synchronization: read write
1122 1123 *
1123 1124 * ipx_writer ipx_lock ipx_lock
1124 1125 * ipx_xop_queued ipx_lock ipx_lock
1125 1126 * ipx_mphead ipx_lock ipx_lock
1126 1127 * ipx_mptail ipx_lock ipx_lock
1127 1128 * ipx_ipsq write once write once
1128 1129 * ips_ipsq_queued ipx_lock ipx_lock
1129 1130 * ipx_waitfor ipsq or ipx_lock ipsq + ipx_lock
1130 1131 * ipx_reentry_cnt ipsq or ipx_lock ipsq + ipx_lock
1131 1132 * ipx_current_done ipsq ipsq
1132 1133 * ipx_current_ioctl ipsq ipsq
1133 1134 * ipx_current_ipif ipsq or ipx_lock ipsq + ipx_lock
1134 1135 * ipx_pending_ipif ipsq or ipx_lock ipsq + ipx_lock
1135 1136 * ipx_pending_mp ipsq or ipx_lock ipsq + ipx_lock
1136 1137 * ipx_forced ipsq ipsq
1137 1138 * ipx_depth ipsq ipsq
1138 1139 * ipx_stack ipsq ipsq
1139 1140 */
1140 1141 typedef struct ipxop_s {
1141 1142 kmutex_t ipx_lock; /* see above */
1142 1143 kthread_t *ipx_writer; /* current owner */
1143 1144 mblk_t *ipx_mphead; /* messages tied to this op */
1144 1145 mblk_t *ipx_mptail;
1145 1146 struct ipsq_s *ipx_ipsq; /* associated ipsq */
1146 1147 boolean_t ipx_ipsq_queued; /* ipsq using xop has queued op */
1147 1148 int ipx_waitfor; /* waiting; values encoded below */
1148 1149 int ipx_reentry_cnt;
1149 1150 boolean_t ipx_current_done; /* is the current operation done? */
1150 1151 int ipx_current_ioctl; /* current ioctl, or 0 if no ioctl */
1151 1152 ipif_t *ipx_current_ipif; /* ipif for current op */
1152 1153 ipif_t *ipx_pending_ipif; /* ipif for ipx_pending_mp */
1153 1154 mblk_t *ipx_pending_mp; /* current ioctl mp while waiting */
1154 1155 boolean_t ipx_forced; /* debugging aid */
1155 1156 #ifdef DEBUG
1156 1157 int ipx_depth; /* debugging aid */
1157 1158 #define IPX_STACK_DEPTH 15
1158 1159 pc_t ipx_stack[IPX_STACK_DEPTH]; /* debugging aid */
1159 1160 #endif
1160 1161 } ipxop_t;
1161 1162
1162 1163 typedef struct ipsq_s {
1163 1164 kmutex_t ipsq_lock; /* see above */
1164 1165 mblk_t *ipsq_switch_mp; /* op to handle right after switch */
1165 1166 mblk_t *ipsq_xopq_mphead; /* list of excl ops (mostly ioctls) */
1166 1167 mblk_t *ipsq_xopq_mptail;
1167 1168 struct phyint *ipsq_phyint; /* associated phyint */
1168 1169 struct ipsq_s *ipsq_next; /* next ipsq sharing ipsq_xop */
1169 1170 struct ipxop_s *ipsq_xop; /* current xop synchronization info */
1170 1171 struct ipxop_s *ipsq_swxop; /* switch xop to on ipsq_exit() */
1171 1172 struct ipxop_s ipsq_ownxop; /* our own xop (may not be in-use) */
1172 1173 ip_stack_t *ipsq_ipst; /* does not have a netstack_hold */
1173 1174 } ipsq_t;
1174 1175
1175 1176 /*
1176 1177 * ipx_waitfor values:
1177 1178 */
1178 1179 enum {
1179 1180 IPIF_DOWN = 1, /* ipif_down() waiting for refcnts to drop */
1180 1181 ILL_DOWN, /* ill_down() waiting for refcnts to drop */
1181 1182 IPIF_FREE, /* ipif_free() waiting for refcnts to drop */
1182 1183 ILL_FREE /* ill unplumb waiting for refcnts to drop */
1183 1184 };
1184 1185
1185 1186 /* Operation types for ipsq_try_enter() */
1186 1187 #define CUR_OP 0 /* request writer within current operation */
1187 1188 #define NEW_OP 1 /* request writer for a new operation */
1188 1189 #define SWITCH_OP 2 /* request writer once IPSQ XOP switches */
1189 1190
1190 1191 /*
1191 1192 * Kstats tracked on each IPMP meta-interface. Order here must match
1192 1193 * ipmp_kstats[] in ip/ipmp.c.
1193 1194 */
1194 1195 enum {
1195 1196 IPMP_KSTAT_OBYTES, IPMP_KSTAT_OBYTES64, IPMP_KSTAT_RBYTES,
1196 1197 IPMP_KSTAT_RBYTES64, IPMP_KSTAT_OPACKETS, IPMP_KSTAT_OPACKETS64,
1197 1198 IPMP_KSTAT_OERRORS, IPMP_KSTAT_IPACKETS, IPMP_KSTAT_IPACKETS64,
1198 1199 IPMP_KSTAT_IERRORS, IPMP_KSTAT_MULTIRCV, IPMP_KSTAT_MULTIXMT,
1199 1200 IPMP_KSTAT_BRDCSTRCV, IPMP_KSTAT_BRDCSTXMT, IPMP_KSTAT_LINK_UP,
1200 1201 IPMP_KSTAT_MAX /* keep last */
1201 1202 };
1202 1203
1203 1204 /*
1204 1205 * phyint represents state that is common to both IPv4 and IPv6 interfaces.
1205 1206 * There is a separate ill_t representing IPv4 and IPv6 which has a
1206 1207 * backpointer to the phyint structure for accessing common state.
1207 1208 */
1208 1209 typedef struct phyint {
1209 1210 struct ill_s *phyint_illv4;
1210 1211 struct ill_s *phyint_illv6;
1211 1212 uint_t phyint_ifindex; /* SIOCSLIFINDEX */
1212 1213 uint64_t phyint_flags;
1213 1214 avl_node_t phyint_avl_by_index; /* avl tree by index */
1214 1215 avl_node_t phyint_avl_by_name; /* avl tree by name */
1215 1216 kmutex_t phyint_lock;
1216 1217 struct ipsq_s *phyint_ipsq; /* back pointer to ipsq */
1217 1218 struct ipmp_grp_s *phyint_grp; /* associated IPMP group */
1218 1219 char phyint_name[LIFNAMSIZ]; /* physical interface name */
1219 1220 uint64_t phyint_kstats0[IPMP_KSTAT_MAX]; /* baseline kstats */
1220 1221 } phyint_t;
1221 1222
1222 1223 #define CACHE_ALIGN_SIZE 64
1223 1224 #define CACHE_ALIGN(align_struct) P2ROUNDUP(sizeof (struct align_struct),\
1224 1225 CACHE_ALIGN_SIZE)
1225 1226 struct _phyint_list_s_ {
1226 1227 avl_tree_t phyint_list_avl_by_index; /* avl tree by index */
1227 1228 avl_tree_t phyint_list_avl_by_name; /* avl tree by name */
1228 1229 };
1229 1230
1230 1231 typedef union phyint_list_u {
1231 1232 struct _phyint_list_s_ phyint_list_s;
1232 1233 char phyint_list_filler[CACHE_ALIGN(_phyint_list_s_)];
1233 1234 } phyint_list_t;
1234 1235
1235 1236 #define phyint_list_avl_by_index phyint_list_s.phyint_list_avl_by_index
1236 1237 #define phyint_list_avl_by_name phyint_list_s.phyint_list_avl_by_name
1237 1238
1238 1239 /*
1239 1240 * Fragmentation hash bucket
1240 1241 */
1241 1242 typedef struct ipfb_s {
1242 1243 struct ipf_s *ipfb_ipf; /* List of ... */
1243 1244 size_t ipfb_count; /* Count of bytes used by frag(s) */
1244 1245 kmutex_t ipfb_lock; /* Protect all ipf in list */
1245 1246 uint_t ipfb_frag_pkts; /* num of distinct fragmented pkts */
1246 1247 } ipfb_t;
1247 1248
1248 1249 /*
1249 1250 * IRE bucket structure. Usually there is an array of such structures,
1250 1251 * each pointing to a linked list of ires. irb_refcnt counts the number
1251 1252 * of walkers of a given hash bucket. Usually the reference count is
1252 1253 * bumped up if the walker wants no IRES to be DELETED while walking the
1253 1254 * list. Bumping up does not PREVENT ADDITION. This allows walking a given
1254 1255 * hash bucket without stumbling up on a free pointer.
1255 1256 *
1256 1257 * irb_t structures in ip_ftable are dynamically allocated and freed.
1257 1258 * In order to identify the irb_t structures that can be safely kmem_free'd
1258 1259 * we need to ensure that
1259 1260 * - the irb_refcnt is quiescent, indicating no other walkers,
1260 1261 * - no other threads or ire's are holding references to the irb,
1261 1262 * i.e., irb_nire == 0,
1262 1263 * - there are no active ire's in the bucket, i.e., irb_ire_cnt == 0
1263 1264 */
1264 1265 typedef struct irb {
1265 1266 struct ire_s *irb_ire; /* First ire in this bucket */
1266 1267 /* Should be first in this struct */
1267 1268 krwlock_t irb_lock; /* Protect this bucket */
1268 1269 uint_t irb_refcnt; /* Protected by irb_lock */
1269 1270 uchar_t irb_marks; /* CONDEMNED ires in this bucket ? */
1270 1271 #define IRB_MARK_CONDEMNED 0x0001 /* Contains some IRE_IS_CONDEMNED */
1271 1272 #define IRB_MARK_DYNAMIC 0x0002 /* Dynamically allocated */
1272 1273 /* Once IPv6 uses radix then IRB_MARK_DYNAMIC will be always be set */
1273 1274 uint_t irb_ire_cnt; /* Num of active IRE in this bucket */
1274 1275 int irb_nire; /* Num of ftable ire's that ref irb */
1275 1276 ip_stack_t *irb_ipst; /* Does not have a netstack_hold */
1276 1277 } irb_t;
1277 1278
1278 1279 /*
1279 1280 * This is the structure used to store the multicast physical addresses
1280 1281 * that an interface has joined.
1281 1282 * The refcnt keeps track of the number of multicast IP addresses mapping
1282 1283 * to a physical multicast address.
1283 1284 */
1284 1285 typedef struct multiphysaddr_s {
1285 1286 struct multiphysaddr_s *mpa_next;
1286 1287 char mpa_addr[IP_MAX_HW_LEN];
1287 1288 int mpa_refcnt;
1288 1289 } multiphysaddr_t;
1289 1290
1290 1291 #define IRB2RT(irb) (rt_t *)((caddr_t)(irb) - offsetof(rt_t, rt_irb))
1291 1292
1292 1293 /* Forward declarations */
1293 1294 struct dce_s;
1294 1295 typedef struct dce_s dce_t;
1295 1296 struct ire_s;
1296 1297 typedef struct ire_s ire_t;
1297 1298 struct ncec_s;
1298 1299 typedef struct ncec_s ncec_t;
1299 1300 struct nce_s;
1300 1301 typedef struct nce_s nce_t;
1301 1302 struct ip_recv_attr_s;
1302 1303 typedef struct ip_recv_attr_s ip_recv_attr_t;
1303 1304 struct ip_xmit_attr_s;
1304 1305 typedef struct ip_xmit_attr_s ip_xmit_attr_t;
1305 1306
1306 1307 struct tsol_ire_gw_secattr_s;
1307 1308 typedef struct tsol_ire_gw_secattr_s tsol_ire_gw_secattr_t;
1308 1309
1309 1310 /*
1310 1311 * This is a structure for a one-element route cache that is passed
1311 1312 * by reference between ip_input and ill_inputfn.
1312 1313 */
1313 1314 typedef struct {
1314 1315 ire_t *rtc_ire;
1315 1316 ipaddr_t rtc_ipaddr;
1316 1317 in6_addr_t rtc_ip6addr;
1317 1318 } rtc_t;
1318 1319
1319 1320 /*
1320 1321 * Note: Temporarily use 64 bits, and will probably go back to 32 bits after
1321 1322 * more cleanup work is done.
1322 1323 */
1323 1324 typedef uint64_t iaflags_t;
1324 1325
1325 1326 /* The ill input function pointer type */
1326 1327 typedef void (*pfillinput_t)(mblk_t *, void *, void *, ip_recv_attr_t *,
1327 1328 rtc_t *);
1328 1329
1329 1330 /* The ire receive function pointer type */
1330 1331 typedef void (*pfirerecv_t)(ire_t *, mblk_t *, void *, ip_recv_attr_t *);
1331 1332
1332 1333 /* The ire send and postfrag function pointer types */
1333 1334 typedef int (*pfiresend_t)(ire_t *, mblk_t *, void *,
1334 1335 ip_xmit_attr_t *, uint32_t *);
1335 1336 typedef int (*pfirepostfrag_t)(mblk_t *, nce_t *, iaflags_t, uint_t, uint32_t,
1336 1337 zoneid_t, zoneid_t, uintptr_t *);
1337 1338
1338 1339
1339 1340 #define IP_V4_G_HEAD 0
1340 1341 #define IP_V6_G_HEAD 1
1341 1342
1342 1343 #define MAX_G_HEADS 2
1343 1344
1344 1345 /*
1345 1346 * unpadded ill_if structure
1346 1347 */
1347 1348 struct _ill_if_s_ {
1348 1349 union ill_if_u *illif_next;
1349 1350 union ill_if_u *illif_prev;
1350 1351 avl_tree_t illif_avl_by_ppa; /* AVL tree sorted on ppa */
1351 1352 vmem_t *illif_ppa_arena; /* ppa index space */
1352 1353 uint16_t illif_mcast_v1; /* hints for */
1353 1354 uint16_t illif_mcast_v2; /* [igmp|mld]_slowtimo */
1354 1355 int illif_name_len; /* name length */
1355 1356 char illif_name[LIFNAMSIZ]; /* name of interface type */
1356 1357 };
1357 1358
1358 1359 /* cache aligned ill_if structure */
1359 1360 typedef union ill_if_u {
1360 1361 struct _ill_if_s_ ill_if_s;
1361 1362 char illif_filler[CACHE_ALIGN(_ill_if_s_)];
1362 1363 } ill_if_t;
1363 1364
1364 1365 #define illif_next ill_if_s.illif_next
1365 1366 #define illif_prev ill_if_s.illif_prev
1366 1367 #define illif_avl_by_ppa ill_if_s.illif_avl_by_ppa
1367 1368 #define illif_ppa_arena ill_if_s.illif_ppa_arena
1368 1369 #define illif_mcast_v1 ill_if_s.illif_mcast_v1
1369 1370 #define illif_mcast_v2 ill_if_s.illif_mcast_v2
1370 1371 #define illif_name ill_if_s.illif_name
1371 1372 #define illif_name_len ill_if_s.illif_name_len
1372 1373
1373 1374 typedef struct ill_walk_context_s {
1374 1375 int ctx_current_list; /* current list being searched */
1375 1376 int ctx_last_list; /* last list to search */
1376 1377 } ill_walk_context_t;
1377 1378
1378 1379 /*
1379 1380 * ill_g_heads structure, one for IPV4 and one for IPV6
1380 1381 */
1381 1382 struct _ill_g_head_s_ {
1382 1383 ill_if_t *ill_g_list_head;
1383 1384 ill_if_t *ill_g_list_tail;
1384 1385 };
1385 1386
1386 1387 typedef union ill_g_head_u {
1387 1388 struct _ill_g_head_s_ ill_g_head_s;
1388 1389 char ill_g_head_filler[CACHE_ALIGN(_ill_g_head_s_)];
1389 1390 } ill_g_head_t;
1390 1391
1391 1392 #define ill_g_list_head ill_g_head_s.ill_g_list_head
1392 1393 #define ill_g_list_tail ill_g_head_s.ill_g_list_tail
1393 1394
1394 1395 #define IP_V4_ILL_G_LIST(ipst) \
1395 1396 (ipst)->ips_ill_g_heads[IP_V4_G_HEAD].ill_g_list_head
1396 1397 #define IP_V6_ILL_G_LIST(ipst) \
1397 1398 (ipst)->ips_ill_g_heads[IP_V6_G_HEAD].ill_g_list_head
1398 1399 #define IP_VX_ILL_G_LIST(i, ipst) \
1399 1400 (ipst)->ips_ill_g_heads[i].ill_g_list_head
1400 1401
1401 1402 #define ILL_START_WALK_V4(ctx_ptr, ipst) \
1402 1403 ill_first(IP_V4_G_HEAD, IP_V4_G_HEAD, ctx_ptr, ipst)
1403 1404 #define ILL_START_WALK_V6(ctx_ptr, ipst) \
1404 1405 ill_first(IP_V6_G_HEAD, IP_V6_G_HEAD, ctx_ptr, ipst)
1405 1406 #define ILL_START_WALK_ALL(ctx_ptr, ipst) \
1406 1407 ill_first(MAX_G_HEADS, MAX_G_HEADS, ctx_ptr, ipst)
1407 1408
1408 1409 /*
1409 1410 * Capabilities, possible flags for ill_capabilities.
1410 1411 */
1411 1412 #define ILL_CAPAB_LSO 0x04 /* Large Send Offload */
1412 1413 #define ILL_CAPAB_HCKSUM 0x08 /* Hardware checksumming */
1413 1414 #define ILL_CAPAB_ZEROCOPY 0x10 /* Zero-copy */
1414 1415 #define ILL_CAPAB_DLD 0x20 /* DLD capabilities */
1415 1416 #define ILL_CAPAB_DLD_POLL 0x40 /* Polling */
1416 1417 #define ILL_CAPAB_DLD_DIRECT 0x80 /* Direct function call */
1417 1418
1418 1419 /*
1419 1420 * Per-ill Hardware Checksumming capbilities.
1420 1421 */
1421 1422 typedef struct ill_hcksum_capab_s ill_hcksum_capab_t;
1422 1423
1423 1424 /*
1424 1425 * Per-ill Zero-copy capabilities.
1425 1426 */
1426 1427 typedef struct ill_zerocopy_capab_s ill_zerocopy_capab_t;
1427 1428
1428 1429 /*
1429 1430 * DLD capbilities.
1430 1431 */
1431 1432 typedef struct ill_dld_capab_s ill_dld_capab_t;
1432 1433
1433 1434 /*
1434 1435 * Per-ill polling resource map.
1435 1436 */
1436 1437 typedef struct ill_rx_ring ill_rx_ring_t;
1437 1438
1438 1439 /*
1439 1440 * Per-ill Large Send Offload capabilities.
1440 1441 */
1441 1442 typedef struct ill_lso_capab_s ill_lso_capab_t;
1442 1443
1443 1444 /* The following are ill_state_flags */
1444 1445 #define ILL_LL_SUBNET_PENDING 0x01 /* Waiting for DL_INFO_ACK from drv */
1445 1446 #define ILL_CONDEMNED 0x02 /* No more new ref's to the ILL */
1446 1447 #define ILL_DL_UNBIND_IN_PROGRESS 0x04 /* UNBIND_REQ is sent */
1447 1448 /*
1448 1449 * ILL_DOWN_IN_PROGRESS is set to ensure the following:
1449 1450 * - no packets are sent to the driver after the DL_UNBIND_REQ is sent,
1450 1451 * - no longstanding references will be acquired on objects that are being
1451 1452 * brought down.
1452 1453 */
1453 1454 #define ILL_DOWN_IN_PROGRESS 0x08
1454 1455
1455 1456 /* Is this an ILL whose source address is used by other ILL's ? */
1456 1457 #define IS_USESRC_ILL(ill) \
1457 1458 (((ill)->ill_usesrc_ifindex == 0) && \
1458 1459 ((ill)->ill_usesrc_grp_next != NULL))
1459 1460
1460 1461 /* Is this a client/consumer of the usesrc ILL ? */
1461 1462 #define IS_USESRC_CLI_ILL(ill) \
1462 1463 (((ill)->ill_usesrc_ifindex != 0) && \
1463 1464 ((ill)->ill_usesrc_grp_next != NULL))
1464 1465
1465 1466 /* Is this an virtual network interface (vni) ILL ? */
1466 1467 #define IS_VNI(ill) \
1467 1468 (((ill)->ill_phyint->phyint_flags & (PHYI_LOOPBACK|PHYI_VIRTUAL)) == \
1468 1469 PHYI_VIRTUAL)
1469 1470
1470 1471 /* Is this a loopback ILL? */
1471 1472 #define IS_LOOPBACK(ill) \
1472 1473 ((ill)->ill_phyint->phyint_flags & PHYI_LOOPBACK)
1473 1474
1474 1475 /* Is this an IPMP meta-interface ILL? */
1475 1476 #define IS_IPMP(ill) \
1476 1477 ((ill)->ill_phyint->phyint_flags & PHYI_IPMP)
1477 1478
1478 1479 /* Is this ILL under an IPMP meta-interface? (aka "in a group?") */
1479 1480 #define IS_UNDER_IPMP(ill) \
1480 1481 ((ill)->ill_grp != NULL && !IS_IPMP(ill))
1481 1482
1482 1483 /* Is ill1 in the same illgrp as ill2? */
1483 1484 #define IS_IN_SAME_ILLGRP(ill1, ill2) \
1484 1485 ((ill1)->ill_grp != NULL && ((ill1)->ill_grp == (ill2)->ill_grp))
1485 1486
1486 1487 /* Is ill1 on the same LAN as ill2? */
1487 1488 #define IS_ON_SAME_LAN(ill1, ill2) \
1488 1489 ((ill1) == (ill2) || IS_IN_SAME_ILLGRP(ill1, ill2))
1489 1490
1490 1491 #define ILL_OTHER(ill) \
1491 1492 ((ill)->ill_isv6 ? (ill)->ill_phyint->phyint_illv4 : \
1492 1493 (ill)->ill_phyint->phyint_illv6)
1493 1494
1494 1495 /*
1495 1496 * IPMP group ILL state structure -- up to two per IPMP group (V4 and V6).
1496 1497 * Created when the V4 and/or V6 IPMP meta-interface is I_PLINK'd. It is
1497 1498 * guaranteed to persist while there are interfaces of that type in the group.
1498 1499 * In general, most fields are accessed outside of the IPSQ (e.g., in the
1499 1500 * datapath), and thus use locks in addition to the IPSQ for protection.
1500 1501 *
1501 1502 * synchronization: read write
1502 1503 *
1503 1504 * ig_if ipsq or ill_g_lock ipsq and ill_g_lock
1504 1505 * ig_actif ipsq or ipmp_lock ipsq and ipmp_lock
1505 1506 * ig_nactif ipsq or ipmp_lock ipsq and ipmp_lock
1506 1507 * ig_next_ill ipsq or ipmp_lock ipsq and ipmp_lock
1507 1508 * ig_ipmp_ill write once write once
1508 1509 * ig_cast_ill ipsq or ipmp_lock ipsq and ipmp_lock
1509 1510 * ig_arpent ipsq ipsq
1510 1511 * ig_mtu ipsq ipsq
1511 1512 * ig_mc_mtu ipsq ipsq
1512 1513 */
1513 1514 typedef struct ipmp_illgrp_s {
1514 1515 list_t ig_if; /* list of all interfaces */
1515 1516 list_t ig_actif; /* list of active interfaces */
1516 1517 uint_t ig_nactif; /* number of active interfaces */
1517 1518 struct ill_s *ig_next_ill; /* next active interface to use */
1518 1519 struct ill_s *ig_ipmp_ill; /* backpointer to IPMP meta-interface */
1519 1520 struct ill_s *ig_cast_ill; /* nominated ill for multi/broadcast */
1520 1521 list_t ig_arpent; /* list of ARP entries */
1521 1522 uint_t ig_mtu; /* ig_ipmp_ill->ill_mtu */
1522 1523 uint_t ig_mc_mtu; /* ig_ipmp_ill->ill_mc_mtu */
1523 1524 } ipmp_illgrp_t;
1524 1525
1525 1526 /*
1526 1527 * IPMP group state structure -- one per IPMP group. Created when the
1527 1528 * IPMP meta-interface is plumbed; it is guaranteed to persist while there
1528 1529 * are interfaces in it.
1529 1530 *
1530 1531 * ipmp_grp_t synchronization: read write
1531 1532 *
1532 1533 * gr_name ipmp_lock ipmp_lock
1533 1534 * gr_ifname write once write once
1534 1535 * gr_mactype ipmp_lock ipmp_lock
1535 1536 * gr_phyint write once write once
1536 1537 * gr_nif ipmp_lock ipmp_lock
1537 1538 * gr_nactif ipsq ipsq
1538 1539 * gr_v4 ipmp_lock ipmp_lock
1539 1540 * gr_v6 ipmp_lock ipmp_lock
1540 1541 * gr_nv4 ipmp_lock ipmp_lock
1541 1542 * gr_nv6 ipmp_lock ipmp_lock
1542 1543 * gr_pendv4 ipmp_lock ipmp_lock
1543 1544 * gr_pendv6 ipmp_lock ipmp_lock
1544 1545 * gr_linkdownmp ipsq ipsq
1545 1546 * gr_ksp ipmp_lock ipmp_lock
1546 1547 * gr_kstats0 atomic atomic
1547 1548 */
1548 1549 typedef struct ipmp_grp_s {
1549 1550 char gr_name[LIFGRNAMSIZ]; /* group name */
1550 1551 char gr_ifname[LIFNAMSIZ]; /* interface name */
1551 1552 t_uscalar_t gr_mactype; /* DLPI mactype of group */
1552 1553 phyint_t *gr_phyint; /* IPMP group phyint */
1553 1554 uint_t gr_nif; /* number of interfaces in group */
1554 1555 uint_t gr_nactif; /* number of active interfaces */
1555 1556 ipmp_illgrp_t *gr_v4; /* V4 group information */
1556 1557 ipmp_illgrp_t *gr_v6; /* V6 group information */
1557 1558 uint_t gr_nv4; /* number of ills in V4 group */
1558 1559 uint_t gr_nv6; /* number of ills in V6 group */
1559 1560 uint_t gr_pendv4; /* number of pending ills in V4 group */
1560 1561 uint_t gr_pendv6; /* number of pending ills in V6 group */
1561 1562 mblk_t *gr_linkdownmp; /* message used to bring link down */
1562 1563 kstat_t *gr_ksp; /* group kstat pointer */
1563 1564 uint64_t gr_kstats0[IPMP_KSTAT_MAX]; /* baseline group kstats */
1564 1565 } ipmp_grp_t;
1565 1566
1566 1567 /*
1567 1568 * IPMP ARP entry -- one per SIOCS*ARP entry tied to the group. Used to keep
1568 1569 * ARP up-to-date as the active set of interfaces in the group changes.
1569 1570 */
1570 1571 typedef struct ipmp_arpent_s {
1571 1572 ipaddr_t ia_ipaddr; /* IP address for this entry */
1572 1573 boolean_t ia_proxyarp; /* proxy ARP entry? */
1573 1574 boolean_t ia_notified; /* ARP notified about this entry? */
1574 1575 list_node_t ia_node; /* next ARP entry in list */
1575 1576 uint16_t ia_flags; /* nce_flags for the address */
1576 1577 size_t ia_lladdr_len;
1577 1578 uchar_t *ia_lladdr;
1578 1579 } ipmp_arpent_t;
1579 1580
1580 1581 struct arl_s;
1581 1582
1582 1583 /*
1583 1584 * Per-ill capabilities.
1584 1585 */
1585 1586 struct ill_hcksum_capab_s {
1586 1587 uint_t ill_hcksum_version; /* interface version */
1587 1588 uint_t ill_hcksum_txflags; /* capabilities on transmit */
1588 1589 };
1589 1590
1590 1591 struct ill_zerocopy_capab_s {
1591 1592 uint_t ill_zerocopy_version; /* interface version */
1592 1593 uint_t ill_zerocopy_flags; /* capabilities */
1593 1594 };
1594 1595
1595 1596 struct ill_lso_capab_s {
1596 1597 uint_t ill_lso_flags; /* capabilities */
1597 1598 uint_t ill_lso_max; /* maximum size of payload */
1598 1599 };
1599 1600
1600 1601 /*
1601 1602 * IP Lower level Structure.
1602 1603 * Instance data structure in ip_open when there is a device below us.
1603 1604 */
1604 1605 typedef struct ill_s {
1605 1606 pfillinput_t ill_inputfn; /* Fast input function selector */
1606 1607 ill_if_t *ill_ifptr; /* pointer to interface type */
1607 1608 queue_t *ill_rq; /* Read queue. */
1608 1609 queue_t *ill_wq; /* Write queue. */
1609 1610
1610 1611 int ill_error; /* Error value sent up by device. */
1611 1612
1612 1613 ipif_t *ill_ipif; /* Interface chain for this ILL. */
1613 1614
1614 1615 uint_t ill_ipif_up_count; /* Number of IPIFs currently up. */
1615 1616 uint_t ill_max_frag; /* Max IDU from DLPI. */
1616 1617 uint_t ill_current_frag; /* Current IDU from DLPI. */
1617 1618 uint_t ill_mtu; /* User-specified MTU; SIOCSLIFMTU */
1618 1619 uint_t ill_mc_mtu; /* MTU for multi/broadcast */
1619 1620 uint_t ill_metric; /* BSD if metric, for compatibility. */
1620 1621 char *ill_name; /* Our name. */
1621 1622 uint_t ill_ipif_dup_count; /* Number of duplicate addresses. */
1622 1623 uint_t ill_name_length; /* Name length, incl. terminator. */
1623 1624 uint_t ill_net_type; /* IRE_IF_RESOLVER/IRE_IF_NORESOLVER. */
1624 1625 /*
1625 1626 * Physical Point of Attachment num. If DLPI style 1 provider
1626 1627 * then this is derived from the devname.
1627 1628 */
1628 1629 uint_t ill_ppa;
1629 1630 t_uscalar_t ill_sap;
1630 1631 t_scalar_t ill_sap_length; /* Including sign (for position) */
1631 1632 uint_t ill_phys_addr_length; /* Excluding the sap. */
1632 1633 uint_t ill_bcast_addr_length; /* Only set when the DL provider */
1633 1634 /* supports broadcast. */
1634 1635 t_uscalar_t ill_mactype;
1635 1636 uint8_t *ill_frag_ptr; /* Reassembly state. */
1636 1637 timeout_id_t ill_frag_timer_id; /* timeout id for the frag timer */
1637 1638 ipfb_t *ill_frag_hash_tbl; /* Fragment hash list head. */
1638 1639
1639 1640 krwlock_t ill_mcast_lock; /* Protects multicast state */
1640 1641 kmutex_t ill_mcast_serializer; /* Serialize across ilg and ilm state */
1641 1642 ilm_t *ill_ilm; /* Multicast membership for ill */
1642 1643 uint_t ill_global_timer; /* for IGMPv3/MLDv2 general queries */
1643 1644 int ill_mcast_type; /* type of router which is querier */
1644 1645 /* on this interface */
1645 1646 uint16_t ill_mcast_v1_time; /* # slow timeouts since last v1 qry */
1646 1647 uint16_t ill_mcast_v2_time; /* # slow timeouts since last v2 qry */
1647 1648 uint8_t ill_mcast_v1_tset; /* 1 => timer is set; 0 => not set */
1648 1649 uint8_t ill_mcast_v2_tset; /* 1 => timer is set; 0 => not set */
1649 1650
1650 1651 uint8_t ill_mcast_rv; /* IGMPv3/MLDv2 robustness variable */
1651 1652 int ill_mcast_qi; /* IGMPv3/MLDv2 query interval var */
1652 1653
1653 1654 /*
1654 1655 * All non-NULL cells between 'ill_first_mp_to_free' and
1655 1656 * 'ill_last_mp_to_free' are freed in ill_delete.
1656 1657 */
1657 1658 #define ill_first_mp_to_free ill_bcast_mp
1658 1659 mblk_t *ill_bcast_mp; /* DLPI header for broadcasts. */
1659 1660 mblk_t *ill_unbind_mp; /* unbind mp from ill_dl_up() */
1660 1661 mblk_t *ill_promiscoff_mp; /* for ill_leave_allmulti() */
1661 1662 mblk_t *ill_dlpi_deferred; /* b_next chain of control messages */
1662 1663 mblk_t *ill_dest_addr_mp; /* mblk which holds ill_dest_addr */
1663 1664 mblk_t *ill_replumb_mp; /* replumb mp from ill_replumb() */
1664 1665 mblk_t *ill_phys_addr_mp; /* mblk which holds ill_phys_addr */
1665 1666 mblk_t *ill_mcast_deferred; /* b_next chain of IGMP/MLD packets */
1666 1667 #define ill_last_mp_to_free ill_mcast_deferred
1667 1668
1668 1669 cred_t *ill_credp; /* opener's credentials */
1669 1670 uint8_t *ill_phys_addr; /* ill_phys_addr_mp->b_rptr + off */
1670 1671 uint8_t *ill_dest_addr; /* ill_dest_addr_mp->b_rptr + off */
1671 1672
1672 1673 uint_t ill_state_flags; /* see ILL_* flags above */
1673 1674
1674 1675 /* Following bit fields protected by ipsq_t */
1675 1676 uint_t
1676 1677 ill_needs_attach : 1,
1677 1678 ill_reserved : 1,
1678 1679 ill_isv6 : 1,
1679 1680 ill_dlpi_style_set : 1,
1680 1681
1681 1682 ill_ifname_pending : 1,
1682 1683 ill_logical_down : 1,
1683 1684 ill_dl_up : 1,
1684 1685 ill_up_ipifs : 1,
1685 1686
1686 1687 ill_note_link : 1, /* supports link-up notification */
1687 1688 ill_capab_reneg : 1, /* capability renegotiation to be done */
1688 1689 ill_dld_capab_inprog : 1, /* direct dld capab call in prog */
1689 1690 ill_need_recover_multicast : 1,
1690 1691
1691 1692 ill_replumbing : 1,
1692 1693 ill_arl_dlpi_pending : 1,
1693 1694 ill_grp_pending : 1,
1694 1695
1695 1696 ill_pad_to_bit_31 : 17;
1696 1697
1697 1698 /* Following bit fields protected by ill_lock */
1698 1699 uint_t
1699 1700 ill_fragtimer_executing : 1,
1700 1701 ill_fragtimer_needrestart : 1,
1701 1702 ill_manual_token : 1, /* system won't override ill_token */
1702 1703 /*
1703 1704 * ill_manual_linklocal : system will not change the
1704 1705 * linklocal whenever ill_token changes.
1705 1706 */
1706 1707 ill_manual_linklocal : 1,
1707 1708
1708 1709 ill_manual_dst_linklocal : 1, /* same for pt-pt dst linklocal */
1709 1710
1710 1711 ill_pad_bit_31 : 27;
1711 1712
1712 1713 /*
1713 1714 * Used in SIOCSIFMUXID and SIOCGIFMUXID for 'ifconfig unplumb'.
1714 1715 */
1715 1716 int ill_muxid; /* muxid returned from plink */
1716 1717
1717 1718 /* Used for IP frag reassembly throttling on a per ILL basis. */
1718 1719 uint_t ill_ipf_gen; /* Generation of next fragment queue */
1719 1720 uint_t ill_frag_count; /* Count of all reassembly mblk bytes */
1720 1721 uint_t ill_frag_free_num_pkts; /* num of fragmented packets to free */
1721 1722 clock_t ill_last_frag_clean_time; /* time when frag's were pruned */
1722 1723 int ill_type; /* From <net/if_types.h> */
1723 1724 uint_t ill_dlpi_multicast_state; /* See below IDS_* */
1724 1725 uint_t ill_dlpi_fastpath_state; /* See below IDS_* */
1725 1726
1726 1727 /*
1727 1728 * Capabilities related fields.
1728 1729 */
1729 1730 uint_t ill_dlpi_capab_state; /* State of capability query, IDCS_* */
1730 1731 uint_t ill_capab_pending_cnt;
1731 1732 uint64_t ill_capabilities; /* Enabled capabilities, ILL_CAPAB_* */
1732 1733 ill_hcksum_capab_t *ill_hcksum_capab; /* H/W cksumming capabilities */
1733 1734 ill_zerocopy_capab_t *ill_zerocopy_capab; /* Zero-copy capabilities */
1734 1735 ill_dld_capab_t *ill_dld_capab; /* DLD capabilities */
1735 1736 ill_lso_capab_t *ill_lso_capab; /* Large Segment Offload capabilities */
1736 1737 mblk_t *ill_capab_reset_mp; /* Preallocated mblk for capab reset */
1737 1738
1738 1739 uint8_t ill_max_hops; /* Maximum hops for any logical interface */
1739 1740 uint_t ill_user_mtu; /* User-specified MTU via SIOCSLIFLNKINFO */
1740 1741 uint32_t ill_reachable_time; /* Value for ND algorithm in msec */
1741 1742 uint32_t ill_reachable_retrans_time; /* Value for ND algorithm msec */
1742 1743 uint_t ill_max_buf; /* Max # of req to buffer for ND */
1743 1744 in6_addr_t ill_token; /* IPv6 interface id */
1744 1745 in6_addr_t ill_dest_token; /* Destination IPv6 interface id */
1745 1746 uint_t ill_token_length;
1746 1747 uint32_t ill_xmit_count; /* ndp max multicast xmits */
1747 1748 mib2_ipIfStatsEntry_t *ill_ip_mib; /* ver indep. interface mib */
1748 1749 mib2_ipv6IfIcmpEntry_t *ill_icmp6_mib; /* Per interface mib */
1749 1750
1750 1751 phyint_t *ill_phyint;
1751 1752 uint64_t ill_flags;
1752 1753
1753 1754 kmutex_t ill_lock; /* Please see table below */
1754 1755 /*
1755 1756 * The ill_nd_lla* fields handle the link layer address option
1756 1757 * from neighbor discovery. This is used for external IPv6
1757 1758 * address resolution.
1758 1759 */
1759 1760 mblk_t *ill_nd_lla_mp; /* mblk which holds ill_nd_lla */
1760 1761 uint8_t *ill_nd_lla; /* Link Layer Address */
1761 1762 uint_t ill_nd_lla_len; /* Link Layer Address length */
1762 1763 /*
1763 1764 * We have 4 phys_addr_req's sent down. This field keeps track
1764 1765 * of which one is pending.
1765 1766 */
1766 1767 t_uscalar_t ill_phys_addr_pend; /* which dl_phys_addr_req pending */
1767 1768 /*
1768 1769 * Used to save errors that occur during plumbing
1769 1770 */
1770 1771 uint_t ill_ifname_pending_err;
1771 1772 avl_node_t ill_avl_byppa; /* avl node based on ppa */
1772 1773 list_t ill_nce; /* pointer to nce_s list */
1773 1774 uint_t ill_refcnt; /* active refcnt by threads */
1774 1775 uint_t ill_ire_cnt; /* ires associated with this ill */
1775 1776 kcondvar_t ill_cv;
1776 1777 uint_t ill_ncec_cnt; /* ncecs associated with this ill */
1777 1778 uint_t ill_nce_cnt; /* nces associated with this ill */
1778 1779 uint_t ill_waiters; /* threads waiting in ipsq_enter */
1779 1780 /*
1780 1781 * Contains the upper read queue pointer of the module immediately
1781 1782 * beneath IP. This field allows IP to validate sub-capability
1782 1783 * acknowledgments coming up from downstream.
1783 1784 */
1784 1785 queue_t *ill_lmod_rq; /* read queue pointer of module below */
1785 1786 uint_t ill_lmod_cnt; /* number of modules beneath IP */
1786 1787 ip_m_t *ill_media; /* media specific params/functions */
1787 1788 t_uscalar_t ill_dlpi_pending; /* Last DLPI primitive issued */
1788 1789 uint_t ill_usesrc_ifindex; /* use src addr from this ILL */
1789 1790 struct ill_s *ill_usesrc_grp_next; /* Next ILL in the usesrc group */
1790 1791 boolean_t ill_trace_disable; /* True when alloc fails */
1791 1792 zoneid_t ill_zoneid;
1792 1793 ip_stack_t *ill_ipst; /* Corresponds to a netstack_hold */
1793 1794 uint32_t ill_dhcpinit; /* IP_DHCPINIT_IFs for ill */
1794 1795 void *ill_flownotify_mh; /* Tx flow ctl, mac cb handle */
1795 1796 uint_t ill_ilm_cnt; /* ilms referencing this ill */
1796 1797 uint_t ill_ipallmulti_cnt; /* ip_join_allmulti() calls */
1797 1798 ilm_t *ill_ipallmulti_ilm;
1798 1799
1799 1800 mblk_t *ill_saved_ire_mp; /* Allocated for each extra IRE */
1800 1801 /* with ire_ill set so they can */
1801 1802 /* survive the ill going down and up. */
1802 1803 kmutex_t ill_saved_ire_lock; /* Protects ill_saved_ire_mp, cnt */
1803 1804 uint_t ill_saved_ire_cnt; /* # entries */
1804 1805 struct arl_ill_common_s *ill_common;
1805 1806 ire_t *ill_ire_multicast; /* IRE_MULTICAST for ill */
1806 1807 clock_t ill_defend_start; /* start of 1 hour period */
1807 1808 uint_t ill_defend_count; /* # of announce/defends per ill */
1808 1809 /*
1809 1810 * IPMP fields.
1810 1811 */
1811 1812 ipmp_illgrp_t *ill_grp; /* IPMP group information */
1812 1813 list_node_t ill_actnode; /* next active ill in group */
1813 1814 list_node_t ill_grpnode; /* next ill in group */
1814 1815 ipif_t *ill_src_ipif; /* source address selection rotor */
1815 1816 ipif_t *ill_move_ipif; /* ipif awaiting move to new ill */
1816 1817 boolean_t ill_nom_cast; /* nominated for mcast/bcast */
1817 1818 uint_t ill_bound_cnt; /* # of data addresses bound to ill */
1818 1819 ipif_t *ill_bound_ipif; /* ipif chain bound to ill */
1819 1820 timeout_id_t ill_refresh_tid; /* ill refresh retry timeout id */
1820 1821
1821 1822 uint32_t ill_mrouter_cnt; /* mrouter allmulti joins */
1822 1823 uint32_t ill_allowed_ips_cnt;
1823 1824 in6_addr_t *ill_allowed_ips;
1824 1825
1825 1826 /* list of multicast physical addresses joined on this ill */
1826 1827 multiphysaddr_t *ill_mphysaddr_list;
1827 1828 } ill_t;
1828 1829
1829 1830 /*
1830 1831 * ILL_FREE_OK() means that there are no incoming pointer references
1831 1832 * to the ill.
1832 1833 */
1833 1834 #define ILL_FREE_OK(ill) \
1834 1835 ((ill)->ill_ire_cnt == 0 && (ill)->ill_ilm_cnt == 0 && \
1835 1836 (ill)->ill_ncec_cnt == 0 && (ill)->ill_nce_cnt == 0)
1836 1837
1837 1838 /*
1838 1839 * An ipif/ill can be marked down only when the ire and ncec references
1839 1840 * to that ipif/ill goes to zero. ILL_DOWN_OK() is a necessary condition
1840 1841 * quiescence checks. See comments above IPIF_DOWN_OK for details
1841 1842 * on why ires and nces are selectively considered for this macro.
1842 1843 */
1843 1844 #define ILL_DOWN_OK(ill) \
1844 1845 (ill->ill_ire_cnt == 0 && ill->ill_ncec_cnt == 0 && \
1845 1846 ill->ill_nce_cnt == 0)
1846 1847
1847 1848 /*
1848 1849 * The following table lists the protection levels of the various members
1849 1850 * of the ill_t. Same notation as that used for ipif_t above is used.
1850 1851 *
1851 1852 * Write Read
1852 1853 *
1853 1854 * ill_ifptr ill_g_lock + s Write once
1854 1855 * ill_rq ipsq Write once
1855 1856 * ill_wq ipsq Write once
1856 1857 *
1857 1858 * ill_error ipsq None
1858 1859 * ill_ipif ill_g_lock + ipsq ill_g_lock OR ipsq
1859 1860 * ill_ipif_up_count ill_lock + ipsq ill_lock OR ipsq
1860 1861 * ill_max_frag ill_lock ill_lock
1861 1862 * ill_current_frag ill_lock ill_lock
1862 1863 *
1863 1864 * ill_name ill_g_lock + ipsq Write once
1864 1865 * ill_name_length ill_g_lock + ipsq Write once
1865 1866 * ill_ndd_name ipsq Write once
1866 1867 * ill_net_type ipsq Write once
1867 1868 * ill_ppa ill_g_lock + ipsq Write once
1868 1869 * ill_sap ipsq + down ill Write once
1869 1870 * ill_sap_length ipsq + down ill Write once
1870 1871 * ill_phys_addr_length ipsq + down ill Write once
1871 1872 *
1872 1873 * ill_bcast_addr_length ipsq ipsq
1873 1874 * ill_mactype ipsq ipsq
1874 1875 * ill_frag_ptr ipsq ipsq
1875 1876 *
1876 1877 * ill_frag_timer_id ill_lock ill_lock
1877 1878 * ill_frag_hash_tbl ipsq up ill
1878 1879 * ill_ilm ill_mcast_lock(WRITER) ill_mcast_lock(READER)
1879 1880 * ill_global_timer ill_mcast_lock(WRITER) ill_mcast_lock(READER)
1880 1881 * ill_mcast_type ill_mcast_lock(WRITER) ill_mcast_lock(READER)
1881 1882 * ill_mcast_v1_time ill_mcast_lock(WRITER) ill_mcast_lock(READER)
1882 1883 * ill_mcast_v2_time ill_mcast_lock(WRITER) ill_mcast_lock(READER)
1883 1884 * ill_mcast_v1_tset ill_mcast_lock(WRITER) ill_mcast_lock(READER)
1884 1885 * ill_mcast_v2_tset ill_mcast_lock(WRITER) ill_mcast_lock(READER)
1885 1886 * ill_mcast_rv ill_mcast_lock(WRITER) ill_mcast_lock(READER)
1886 1887 * ill_mcast_qi ill_mcast_lock(WRITER) ill_mcast_lock(READER)
1887 1888 *
1888 1889 * ill_down_mp ipsq ipsq
1889 1890 * ill_dlpi_deferred ill_lock ill_lock
1890 1891 * ill_dlpi_pending ipsq + ill_lock ipsq or ill_lock or
1891 1892 * absence of ipsq writer.
1892 1893 * ill_phys_addr_mp ipsq + down ill only when ill is up
1893 1894 * ill_mcast_deferred ill_lock ill_lock
1894 1895 * ill_phys_addr ipsq + down ill only when ill is up
1895 1896 * ill_dest_addr_mp ipsq + down ill only when ill is up
1896 1897 * ill_dest_addr ipsq + down ill only when ill is up
1897 1898 *
1898 1899 * ill_state_flags ill_lock ill_lock
1899 1900 * exclusive bit flags ipsq_t ipsq_t
1900 1901 * shared bit flags ill_lock ill_lock
1901 1902 *
1902 1903 * ill_muxid ipsq Not atomic
1903 1904 *
1904 1905 * ill_ipf_gen Not atomic
1905 1906 * ill_frag_count atomics atomics
1906 1907 * ill_type ipsq + down ill only when ill is up
1907 1908 * ill_dlpi_multicast_state ill_lock ill_lock
1908 1909 * ill_dlpi_fastpath_state ill_lock ill_lock
1909 1910 * ill_dlpi_capab_state ipsq ipsq
1910 1911 * ill_max_hops ipsq Not atomic
1911 1912 *
1912 1913 * ill_mtu ill_lock None
1913 1914 * ill_mc_mtu ill_lock None
1914 1915 *
1915 1916 * ill_user_mtu ipsq + ill_lock ill_lock
1916 1917 * ill_reachable_time ipsq + ill_lock ill_lock
1917 1918 * ill_reachable_retrans_time ipsq + ill_lock ill_lock
1918 1919 * ill_max_buf ipsq + ill_lock ill_lock
1919 1920 *
1920 1921 * Next 2 fields need ill_lock because of the get ioctls. They should not
1921 1922 * report partially updated results without executing in the ipsq.
1922 1923 * ill_token ipsq + ill_lock ill_lock
1923 1924 * ill_token_length ipsq + ill_lock ill_lock
1924 1925 * ill_dest_token ipsq + down ill only when ill is up
1925 1926 * ill_xmit_count ipsq + down ill write once
1926 1927 * ill_ip6_mib ipsq + down ill only when ill is up
1927 1928 * ill_icmp6_mib ipsq + down ill only when ill is up
1928 1929 *
1929 1930 * ill_phyint ipsq, ill_g_lock, ill_lock Any of them
1930 1931 * ill_flags ill_lock ill_lock
1931 1932 * ill_nd_lla_mp ipsq + down ill only when ill is up
1932 1933 * ill_nd_lla ipsq + down ill only when ill is up
1933 1934 * ill_nd_lla_len ipsq + down ill only when ill is up
1934 1935 * ill_phys_addr_pend ipsq + down ill only when ill is up
1935 1936 * ill_ifname_pending_err ipsq ipsq
1936 1937 * ill_avl_byppa ipsq, ill_g_lock write once
1937 1938 *
1938 1939 * ill_fastpath_list ill_lock ill_lock
1939 1940 * ill_refcnt ill_lock ill_lock
1940 1941 * ill_ire_cnt ill_lock ill_lock
1941 1942 * ill_cv ill_lock ill_lock
1942 1943 * ill_ncec_cnt ill_lock ill_lock
1943 1944 * ill_nce_cnt ill_lock ill_lock
1944 1945 * ill_ilm_cnt ill_lock ill_lock
1945 1946 * ill_src_ipif ill_g_lock ill_g_lock
1946 1947 * ill_trace ill_lock ill_lock
1947 1948 * ill_usesrc_grp_next ill_g_usesrc_lock ill_g_usesrc_lock
1948 1949 * ill_dhcpinit atomics atomics
1949 1950 * ill_flownotify_mh write once write once
1950 1951 * ill_capab_pending_cnt ipsq ipsq
1951 1952 * ill_ipallmulti_cnt ill_lock ill_lock
1952 1953 * ill_ipallmulti_ilm ill_lock ill_lock
1953 1954 * ill_saved_ire_mp ill_saved_ire_lock ill_saved_ire_lock
1954 1955 * ill_saved_ire_cnt ill_saved_ire_lock ill_saved_ire_lock
1955 1956 * ill_arl ??? ???
1956 1957 * ill_ire_multicast ipsq + quiescent none
1957 1958 * ill_bound_ipif ipsq ipsq
1958 1959 * ill_actnode ipsq + ipmp_lock ipsq OR ipmp_lock
1959 1960 * ill_grpnode ipsq + ill_g_lock ipsq OR ill_g_lock
1960 1961 * ill_src_ipif ill_g_lock ill_g_lock
1961 1962 * ill_move_ipif ipsq ipsq
1962 1963 * ill_nom_cast ipsq ipsq OR advisory
1963 1964 * ill_refresh_tid ill_lock ill_lock
1964 1965 * ill_grp (for IPMP ill) write once write once
1965 1966 * ill_grp (for underlying ill) ipsq + ill_g_lock ipsq OR ill_g_lock
1966 1967 * ill_grp_pending ill_mcast_serializer ill_mcast_serializer
1967 1968 * ill_mrouter_cnt atomics atomics
1968 1969 * ill_mphysaddr_list ill_lock ill_lock
1969 1970 *
1970 1971 * NOTE: It's OK to make heuristic decisions on an underlying interface
1971 1972 * by using IS_UNDER_IPMP() or comparing ill_grp's raw pointer value.
1972 1973 */
1973 1974
1974 1975 /*
1975 1976 * For ioctl restart mechanism see ip_reprocess_ioctl()
1976 1977 */
1977 1978 struct ip_ioctl_cmd_s;
1978 1979
1979 1980 typedef int (*ifunc_t)(ipif_t *, struct sockaddr_in *, queue_t *, mblk_t *,
1980 1981 struct ip_ioctl_cmd_s *, void *);
1981 1982
1982 1983 typedef struct ip_ioctl_cmd_s {
1983 1984 int ipi_cmd;
1984 1985 size_t ipi_copyin_size;
1985 1986 uint_t ipi_flags;
1986 1987 uint_t ipi_cmd_type;
1987 1988 ifunc_t ipi_func;
1988 1989 ifunc_t ipi_func_restart;
1989 1990 } ip_ioctl_cmd_t;
1990 1991
1991 1992 /*
1992 1993 * ipi_cmd_type:
1993 1994 *
1994 1995 * IF_CMD 1 old style ifreq cmd
1995 1996 * LIF_CMD 2 new style lifreq cmd
1996 1997 * ARP_CMD 3 arpreq cmd
1997 1998 * XARP_CMD 4 xarpreq cmd
1998 1999 * MSFILT_CMD 5 multicast source filter cmd
1999 2000 * MISC_CMD 6 misc cmd (not a more specific one above)
2000 2001 */
2001 2002
2002 2003 enum { IF_CMD = 1, LIF_CMD, ARP_CMD, XARP_CMD, MSFILT_CMD, MISC_CMD };
2003 2004
2004 2005 #define IPI_DONTCARE 0 /* For ioctl encoded values that don't matter */
2005 2006
2006 2007 /* Flag values in ipi_flags */
2007 2008 #define IPI_PRIV 0x1 /* Root only command */
2008 2009 #define IPI_MODOK 0x2 /* Permitted on mod instance of IP */
2009 2010 #define IPI_WR 0x4 /* Need to grab writer access */
2010 2011 #define IPI_GET_CMD 0x8 /* branch to mi_copyout on success */
2011 2012 /* unused 0x10 */
2012 2013 #define IPI_NULL_BCONT 0x20 /* ioctl has not data and hence no b_cont */
2013 2014
2014 2015 extern ip_ioctl_cmd_t ip_ndx_ioctl_table[];
2015 2016 extern ip_ioctl_cmd_t ip_misc_ioctl_table[];
2016 2017 extern int ip_ndx_ioctl_count;
2017 2018 extern int ip_misc_ioctl_count;
2018 2019
2019 2020 /* Passed down by ARP to IP during I_PLINK/I_PUNLINK */
2020 2021 typedef struct ipmx_s {
2021 2022 char ipmx_name[LIFNAMSIZ]; /* if name */
2022 2023 uint_t
2023 2024 ipmx_arpdev_stream : 1, /* This is the arp stream */
2024 2025 ipmx_notused : 31;
2025 2026 } ipmx_t;
2026 2027
2027 2028 /*
2028 2029 * State for detecting if a driver supports certain features.
2029 2030 * Support for DL_ENABMULTI_REQ uses ill_dlpi_multicast_state.
2030 2031 * Support for DLPI M_DATA fastpath uses ill_dlpi_fastpath_state.
2031 2032 */
2032 2033 #define IDS_UNKNOWN 0 /* No DLPI request sent */
2033 2034 #define IDS_INPROGRESS 1 /* DLPI request sent */
2034 2035 #define IDS_OK 2 /* DLPI request completed successfully */
2035 2036 #define IDS_FAILED 3 /* DLPI request failed */
2036 2037
2037 2038 /* Support for DL_CAPABILITY_REQ uses ill_dlpi_capab_state. */
2038 2039 enum {
2039 2040 IDCS_UNKNOWN,
2040 2041 IDCS_PROBE_SENT,
2041 2042 IDCS_OK,
2042 2043 IDCS_RESET_SENT,
2043 2044 IDCS_RENEG,
2044 2045 IDCS_FAILED
2045 2046 };
2046 2047
2047 2048 /* Extended NDP Management Structure */
2048 2049 typedef struct ipndp_s {
2049 2050 ndgetf_t ip_ndp_getf;
2050 2051 ndsetf_t ip_ndp_setf;
2051 2052 caddr_t ip_ndp_data;
2052 2053 char *ip_ndp_name;
2053 2054 } ipndp_t;
2054 2055
2055 2056 /* IXA Notification types */
2056 2057 typedef enum {
2057 2058 IXAN_LSO, /* LSO capability change */
2058 2059 IXAN_PMTU, /* PMTU change */
2059 2060 IXAN_ZCOPY /* ZEROCOPY capability change */
2060 2061 } ixa_notify_type_t;
2061 2062
2062 2063 typedef uint_t ixa_notify_arg_t;
2063 2064
2064 2065 typedef void (*ixa_notify_t)(void *, ip_xmit_attr_t *ixa, ixa_notify_type_t,
2065 2066 ixa_notify_arg_t);
2066 2067
2067 2068 /*
2068 2069 * Attribute flags that are common to the transmit and receive attributes
2069 2070 */
2070 2071 #define IAF_IS_IPV4 0x80000000 /* ipsec_*_v4 */
2071 2072 #define IAF_TRUSTED_ICMP 0x40000000 /* ipsec_*_icmp_loopback */
2072 2073 #define IAF_NO_LOOP_ZONEID_SET 0x20000000 /* Zone that shouldn't have */
2073 2074 /* a copy */
2074 2075 #define IAF_LOOPBACK_COPY 0x10000000 /* For multi and broadcast */
2075 2076
2076 2077 #define IAF_MASK 0xf0000000 /* Flags that are common */
2077 2078
2078 2079 /*
2079 2080 * Transmit side attributes used between the transport protocols and IP as
2080 2081 * well as inside IP. It is also used to cache information in the conn_t i.e.
2081 2082 * replaces conn_ire and the IPsec caching in the conn_t.
2082 2083 */
2083 2084 struct ip_xmit_attr_s {
2084 2085 iaflags_t ixa_flags; /* IXAF_*. See below */
2085 2086
2086 2087 uint32_t ixa_free_flags; /* IXA_FREE_*. See below */
2087 2088 uint32_t ixa_refcnt; /* Using atomics */
2088 2089
2089 2090 /*
2090 2091 * Always initialized independently of ixa_flags settings.
2091 2092 * Used by ip_xmit so we keep them up front for cache locality.
2092 2093 */
2093 2094 uint32_t ixa_xmit_hint; /* For ECMP and GLD TX ring fanout */
2094 2095 uint_t ixa_pktlen; /* Always set. For frag and stats */
2095 2096 zoneid_t ixa_zoneid; /* Assumed always set */
2096 2097
2097 2098 /* Always set for conn_ip_output(); might be stale */
2098 2099 /*
2099 2100 * Since TCP keeps the conn_t around past the process going away
2100 2101 * we need to use the "notr" (e.g, ire_refhold_notr) for ixa_ire,
2101 2102 * ixa_nce, and ixa_dce.
2102 2103 */
2103 2104 ire_t *ixa_ire; /* Forwarding table entry */
2104 2105 uint_t ixa_ire_generation;
2105 2106 nce_t *ixa_nce; /* Neighbor cache entry */
2106 2107 dce_t *ixa_dce; /* Destination cache entry */
2107 2108 uint_t ixa_dce_generation;
2108 2109 uint_t ixa_src_generation; /* If IXAF_VERIFY_SOURCE */
2109 2110
2110 2111 uint32_t ixa_src_preferences; /* prefs for src addr select */
2111 2112 uint32_t ixa_pmtu; /* IXAF_VERIFY_PMTU */
2112 2113
2113 2114 /* Set by ULP if IXAF_VERIFY_PMTU; otherwise set by IP */
2114 2115 uint32_t ixa_fragsize;
2115 2116
2116 2117 int8_t ixa_use_min_mtu; /* IXAF_USE_MIN_MTU values */
2117 2118
2118 2119 pfirepostfrag_t ixa_postfragfn; /* Set internally in IP */
2119 2120
2120 2121 in6_addr_t ixa_nexthop_v6; /* IXAF_NEXTHOP_SET */
2121 2122 #define ixa_nexthop_v4 V4_PART_OF_V6(ixa_nexthop_v6)
2122 2123
2123 2124 zoneid_t ixa_no_loop_zoneid; /* IXAF_NO_LOOP_ZONEID_SET */
2124 2125
2125 2126 uint_t ixa_scopeid; /* For IPv6 link-locals */
2126 2127
2127 2128 uint_t ixa_broadcast_ttl; /* IXAF_BROACAST_TTL_SET */
2128 2129
2129 2130 uint_t ixa_multicast_ttl; /* Assumed set for multicast */
2130 2131 uint_t ixa_multicast_ifindex; /* Assumed set for multicast */
2131 2132 ipaddr_t ixa_multicast_ifaddr; /* Assumed set for multicast */
2132 2133
2133 2134 int ixa_raw_cksum_offset; /* If IXAF_SET_RAW_CKSUM */
2134 2135
2135 2136 uint32_t ixa_ident; /* For IPv6 fragment header */
2136 2137
2137 2138 uint64_t ixa_conn_id; /* Used by DTrace */
2138 2139 /*
2139 2140 * Cached LSO information.
2140 2141 */
2141 2142 ill_lso_capab_t ixa_lso_capab; /* Valid when IXAF_LSO_CAPAB */
2142 2143
2143 2144 uint64_t ixa_ipsec_policy_gen; /* Generation from iph_gen */
2144 2145 /*
2145 2146 * The following IPsec fields are only initialized when
2146 2147 * IXAF_IPSEC_SECURE is set. Otherwise they contain garbage.
2147 2148 */
2148 2149 ipsec_latch_t *ixa_ipsec_latch; /* Just the ids */
2149 2150 struct ipsa_s *ixa_ipsec_ah_sa; /* Hard reference SA for AH */
2150 2151 struct ipsa_s *ixa_ipsec_esp_sa; /* Hard reference SA for ESP */
2151 2152 struct ipsec_policy_s *ixa_ipsec_policy; /* why are we here? */
2152 2153 struct ipsec_action_s *ixa_ipsec_action; /* For reflected packets */
2153 2154 ipsa_ref_t ixa_ipsec_ref[2]; /* Soft reference to SA */
2154 2155 /* 0: ESP, 1: AH */
2155 2156
2156 2157 /*
2157 2158 * The selectors here are potentially different than the SPD rule's
2158 2159 * selectors, and we need to have both available for IKEv2.
2159 2160 *
2160 2161 * NOTE: "Source" and "Dest" are w.r.t. outbound datagrams. Ports can
2161 2162 * be zero, and the protocol number is needed to make the ports
2162 2163 * significant.
2163 2164 */
2164 2165 uint16_t ixa_ipsec_src_port; /* Source port number of d-gram. */
2165 2166 uint16_t ixa_ipsec_dst_port; /* Destination port number of d-gram. */
2166 2167 uint8_t ixa_ipsec_icmp_type; /* ICMP type of d-gram */
2167 2168 uint8_t ixa_ipsec_icmp_code; /* ICMP code of d-gram */
2168 2169
2169 2170 sa_family_t ixa_ipsec_inaf; /* Inner address family */
2170 2171 #define IXA_MAX_ADDRLEN 4 /* Max addr len. (in 32-bit words) */
2171 2172 uint32_t ixa_ipsec_insrc[IXA_MAX_ADDRLEN]; /* Inner src address */
2172 2173 uint32_t ixa_ipsec_indst[IXA_MAX_ADDRLEN]; /* Inner dest address */
2173 2174 uint8_t ixa_ipsec_insrcpfx; /* Inner source prefix */
2174 2175 uint8_t ixa_ipsec_indstpfx; /* Inner destination prefix */
2175 2176
2176 2177 uint8_t ixa_ipsec_proto; /* IP protocol number for d-gram. */
2177 2178
2178 2179 /* Always initialized independently of ixa_flags settings */
2179 2180 uint_t ixa_ifindex; /* Assumed always set */
2180 2181 uint16_t ixa_ip_hdr_length; /* Points to ULP header */
2181 2182 uint8_t ixa_protocol; /* Protocol number for ULP cksum */
2182 2183 ts_label_t *ixa_tsl; /* Always set. NULL if not TX */
2183 2184 ip_stack_t *ixa_ipst; /* Always set */
2184 2185 uint32_t ixa_extra_ident; /* Set if LSO */
2185 2186 cred_t *ixa_cred; /* For getpeerucred */
2186 2187 pid_t ixa_cpid; /* For getpeerucred */
2187 2188
2188 2189 #ifdef DEBUG
2189 2190 kthread_t *ixa_curthread; /* For serialization assert */
2190 2191 #endif
2191 2192 squeue_t *ixa_sqp; /* Set from conn_sqp as a hint */
2192 2193 uintptr_t ixa_cookie; /* cookie to use for tx flow control */
2193 2194
2194 2195 /*
2195 2196 * Must be set by ULP if any of IXAF_VERIFY_LSO, IXAF_VERIFY_PMTU,
2196 2197 * or IXAF_VERIFY_ZCOPY is set.
2197 2198 */
2198 2199 ixa_notify_t ixa_notify; /* Registered upcall notify function */
2199 2200 void *ixa_notify_cookie; /* ULP cookie for ixa_notify */
2200 2201
2201 2202 uint_t ixa_tcpcleanup; /* Used by conn_ixa_cleanup */
2202 2203 };
2203 2204
2204 2205 /*
2205 2206 * Flags to indicate which transmit attributes are set.
2206 2207 * Split into "xxx_SET" ones which indicate that the "xxx" field it set, and
2207 2208 * single flags.
2208 2209 */
2209 2210 #define IXAF_REACH_CONF 0x00000001 /* Reachability confirmation */
2210 2211 #define IXAF_BROADCAST_TTL_SET 0x00000002 /* ixa_broadcast_ttl valid */
2211 2212 #define IXAF_SET_SOURCE 0x00000004 /* Replace if broadcast */
2212 2213 #define IXAF_USE_MIN_MTU 0x00000008 /* IPV6_USE_MIN_MTU */
2213 2214
2214 2215 #define IXAF_DONTFRAG 0x00000010 /* IP*_DONTFRAG */
2215 2216 #define IXAF_VERIFY_PMTU 0x00000020 /* ixa_pmtu/ixa_fragsize set */
2216 2217 #define IXAF_PMTU_DISCOVERY 0x00000040 /* Create/use PMTU state */
2217 2218 #define IXAF_MULTICAST_LOOP 0x00000080 /* IP_MULTICAST_LOOP */
2218 2219
2219 2220 #define IXAF_IPSEC_SECURE 0x00000100 /* Need IPsec processing */
2220 2221 #define IXAF_UCRED_TSL 0x00000200 /* ixa_tsl from SCM_UCRED */
2221 2222 #define IXAF_DONTROUTE 0x00000400 /* SO_DONTROUTE */
2222 2223 #define IXAF_NO_IPSEC 0x00000800 /* Ignore policy */
2223 2224
2224 2225 #define IXAF_PMTU_TOO_SMALL 0x00001000 /* PMTU too small */
2225 2226 #define IXAF_SET_ULP_CKSUM 0x00002000 /* Calculate ULP checksum */
2226 2227 #define IXAF_VERIFY_SOURCE 0x00004000 /* Check that source is ok */
2227 2228 #define IXAF_NEXTHOP_SET 0x00008000 /* ixa_nexthop set */
2228 2229
2229 2230 #define IXAF_PMTU_IPV4_DF 0x00010000 /* Set IPv4 DF */
2230 2231 #define IXAF_NO_DEV_FLOW_CTL 0x00020000 /* Protocol needs no flow ctl */
2231 2232 #define IXAF_NO_TTL_CHANGE 0x00040000 /* Internal to IP */
2232 2233 #define IXAF_IPV6_ADD_FRAGHDR 0x00080000 /* Add fragment header */
2233 2234
2234 2235 #define IXAF_IPSEC_TUNNEL 0x00100000 /* Tunnel mode */
2235 2236 #define IXAF_NO_PFHOOK 0x00200000 /* Skip xmit pfhook */
2236 2237 #define IXAF_NO_TRACE 0x00400000 /* When back from ARP/ND */
2237 2238 #define IXAF_SCOPEID_SET 0x00800000 /* ixa_scopeid set */
2238 2239
2239 2240 #define IXAF_MULTIRT_MULTICAST 0x01000000 /* MULTIRT for multicast */
2240 2241 #define IXAF_NO_HW_CKSUM 0x02000000 /* Force software cksum */
2241 2242 #define IXAF_SET_RAW_CKSUM 0x04000000 /* Use ixa_raw_cksum_offset */
2242 2243 #define IXAF_IPSEC_GLOBAL_POLICY 0x08000000 /* Policy came from global */
2243 2244
2244 2245 /* Note the following uses bits 0x10000000 through 0x80000000 */
2245 2246 #define IXAF_IS_IPV4 IAF_IS_IPV4
2246 2247 #define IXAF_TRUSTED_ICMP IAF_TRUSTED_ICMP
2247 2248 #define IXAF_NO_LOOP_ZONEID_SET IAF_NO_LOOP_ZONEID_SET
2248 2249 #define IXAF_LOOPBACK_COPY IAF_LOOPBACK_COPY
2249 2250
2250 2251 /* Note: use the upper 32 bits */
2251 2252 #define IXAF_VERIFY_LSO 0x100000000 /* Check LSO capability */
2252 2253 #define IXAF_LSO_CAPAB 0x200000000 /* Capable of LSO */
2253 2254 #define IXAF_VERIFY_ZCOPY 0x400000000 /* Check Zero Copy capability */
2254 2255 #define IXAF_ZCOPY_CAPAB 0x800000000 /* Capable of ZEROCOPY */
2255 2256
2256 2257 /*
2257 2258 * The normal flags for sending packets e.g., icmp errors
2258 2259 */
2259 2260 #define IXAF_BASIC_SIMPLE_V4 \
2260 2261 (IXAF_SET_ULP_CKSUM | IXAF_IS_IPV4 | IXAF_VERIFY_SOURCE)
2261 2262 #define IXAF_BASIC_SIMPLE_V6 (IXAF_SET_ULP_CKSUM | IXAF_VERIFY_SOURCE)
2262 2263
2263 2264 /*
2264 2265 * Normally these fields do not have a hold. But in some cases they do, for
2265 2266 * instance when we've gone through ip_*_attr_to/from_mblk.
2266 2267 * We use ixa_free_flags to indicate that they have a hold and need to be
2267 2268 * released on cleanup.
2268 2269 */
2269 2270 #define IXA_FREE_CRED 0x00000001 /* ixa_cred needs to be rele */
2270 2271 #define IXA_FREE_TSL 0x00000002 /* ixa_tsl needs to be rele */
2271 2272
2272 2273 /*
2273 2274 * Trivial state machine used to synchronize IXA cleanup for TCP connections.
2274 2275 * See conn_ixa_cleanup().
2275 2276 */
2276 2277 #define IXATC_IDLE 0x00000000
2277 2278 #define IXATC_INPROGRESS 0x00000001
2278 2279 #define IXATC_COMPLETE 0x00000002
2279 2280
2280 2281 /*
2281 2282 * Simplistic way to set the ixa_xmit_hint for locally generated traffic
2282 2283 * and forwarded traffic. The shift amount are based on the size of the
2283 2284 * structs to discard the low order bits which don't have much if any variation
2284 2285 * (coloring in kmem_cache_alloc might provide some variation).
2285 2286 *
2286 2287 * Basing the locally generated hint on the address of the conn_t means that
2287 2288 * the packets from the same socket/connection do not get reordered.
2288 2289 * Basing the hint for forwarded traffic on the ill_ring_t means that
2289 2290 * packets from the same NIC+ring are likely to use the same outbound ring
2290 2291 * hence we get low contention on the ring in the transmitting driver.
2291 2292 */
2292 2293 #define CONN_TO_XMIT_HINT(connp) ((uint32_t)(((uintptr_t)connp) >> 11))
2293 2294 #define ILL_RING_TO_XMIT_HINT(ring) ((uint32_t)(((uintptr_t)ring) >> 7))
2294 2295
2295 2296 /*
2296 2297 * IP set Destination Flags used by function ip_set_destination,
2297 2298 * ip_attr_connect, and conn_connect.
2298 2299 */
2299 2300 #define IPDF_ALLOW_MCBC 0x1 /* Allow multi/broadcast */
2300 2301 #define IPDF_VERIFY_DST 0x2 /* Verify destination addr */
2301 2302 #define IPDF_SELECT_SRC 0x4 /* Select source address */
2302 2303 #define IPDF_LSO 0x8 /* Try LSO */
2303 2304 #define IPDF_IPSEC 0x10 /* Set IPsec policy */
2304 2305 #define IPDF_ZONE_IS_GLOBAL 0x20 /* From conn_zone_is_global */
2305 2306 #define IPDF_ZCOPY 0x40 /* Try ZEROCOPY */
2306 2307 #define IPDF_UNIQUE_DCE 0x80 /* Get a per-destination DCE */
2307 2308
2308 2309 /*
2309 2310 * Receive side attributes used between the transport protocols and IP as
2310 2311 * well as inside IP.
2311 2312 */
2312 2313 struct ip_recv_attr_s {
2313 2314 iaflags_t ira_flags; /* See below */
2314 2315
2315 2316 uint32_t ira_free_flags; /* IRA_FREE_*. See below */
2316 2317
2317 2318 /*
2318 2319 * This is a hint for TCP SYN packets.
2319 2320 * Always initialized independently of ira_flags settings
2320 2321 */
2321 2322 squeue_t *ira_sqp;
2322 2323 ill_rx_ring_t *ira_ring; /* Internal to IP */
2323 2324
2324 2325 /* For ip_accept_tcp when IRAF_TARGET_SQP is set */
2325 2326 squeue_t *ira_target_sqp;
2326 2327 mblk_t *ira_target_sqp_mp;
2327 2328
2328 2329 /* Always initialized independently of ira_flags settings */
2329 2330 uint32_t ira_xmit_hint; /* For ECMP and GLD TX ring fanout */
2330 2331 zoneid_t ira_zoneid; /* ALL_ZONES unless local delivery */
2331 2332 uint_t ira_pktlen; /* Always set. For frag and stats */
2332 2333 uint16_t ira_ip_hdr_length; /* Points to ULP header */
2333 2334 uint8_t ira_protocol; /* Protocol number for ULP cksum */
2334 2335 uint_t ira_rifindex; /* Received ifindex */
2335 2336 uint_t ira_ruifindex; /* Received upper ifindex */
2336 2337 ts_label_t *ira_tsl; /* Always set. NULL if not TX */
2337 2338 /*
2338 2339 * ira_rill and ira_ill is set inside IP, but not when conn_recv is
2339 2340 * called; ULPs should use ira_ruifindex instead.
2340 2341 */
2341 2342 ill_t *ira_rill; /* ill where packet came */
2342 2343 ill_t *ira_ill; /* ill where IP address hosted */
2343 2344 cred_t *ira_cred; /* For getpeerucred */
2344 2345 pid_t ira_cpid; /* For getpeerucred */
2345 2346
2346 2347 /* Used when IRAF_VERIFIED_SRC is set; this source was ok */
2347 2348 ipaddr_t ira_verified_src;
2348 2349
2349 2350 /*
2350 2351 * The following IPsec fields are only initialized when
2351 2352 * IRAF_IPSEC_SECURE is set. Otherwise they contain garbage.
2352 2353 */
2353 2354 struct ipsec_action_s *ira_ipsec_action; /* how we made it in.. */
2354 2355 struct ipsa_s *ira_ipsec_ah_sa; /* SA for AH */
2355 2356 struct ipsa_s *ira_ipsec_esp_sa; /* SA for ESP */
2356 2357
2357 2358 ipaddr_t ira_mroute_tunnel; /* IRAF_MROUTE_TUNNEL_SET */
2358 2359
2359 2360 zoneid_t ira_no_loop_zoneid; /* IRAF_NO_LOOP_ZONEID_SET */
2360 2361
2361 2362 uint32_t ira_esp_udp_ports; /* IRAF_ESP_UDP_PORTS */
2362 2363
2363 2364 /*
2364 2365 * For IP_RECVSLLA and ip_ndp_conflict/find_solicitation.
2365 2366 * Same size as max for sockaddr_dl
2366 2367 */
2367 2368 #define IRA_L2SRC_SIZE 244
2368 2369 uint8_t ira_l2src[IRA_L2SRC_SIZE]; /* If IRAF_L2SRC_SET */
2369 2370
2370 2371 /*
2371 2372 * Local handle that we use to do lazy setting of ira_l2src.
2372 2373 * We defer setting l2src until needed but we do before any
2373 2374 * ip_input pullupmsg or copymsg.
2374 2375 */
2375 2376 struct mac_header_info_s *ira_mhip; /* Could be NULL */
2376 2377 };
2377 2378
2378 2379 /*
2379 2380 * Flags to indicate which receive attributes are set.
2380 2381 */
2381 2382 #define IRAF_SYSTEM_LABELED 0x00000001 /* is_system_labeled() */
2382 2383 #define IRAF_IPV4_OPTIONS 0x00000002 /* Performance */
2383 2384 #define IRAF_MULTICAST 0x00000004 /* Was multicast at L3 */
2384 2385 #define IRAF_BROADCAST 0x00000008 /* Was broadcast at L3 */
2385 2386 #define IRAF_MULTIBROADCAST (IRAF_MULTICAST|IRAF_BROADCAST)
2386 2387
2387 2388 #define IRAF_LOOPBACK 0x00000010 /* Looped back by IP */
2388 2389 #define IRAF_VERIFY_IP_CKSUM 0x00000020 /* Need to verify IP */
2389 2390 #define IRAF_VERIFY_ULP_CKSUM 0x00000040 /* Need to verify TCP,UDP,etc */
2390 2391 #define IRAF_SCTP_CSUM_ERR 0x00000080 /* sctp pkt has failed chksum */
2391 2392
2392 2393 #define IRAF_IPSEC_SECURE 0x00000100 /* Passed AH and/or ESP */
2393 2394 #define IRAF_DHCP_UNICAST 0x00000200
2394 2395 #define IRAF_IPSEC_DECAPS 0x00000400 /* Was packet decapsulated */
2395 2396 /* from a matching inner packet? */
2396 2397 #define IRAF_TARGET_SQP 0x00000800 /* ira_target_sqp is set */
2397 2398 #define IRAF_VERIFIED_SRC 0x00001000 /* ira_verified_src set */
2398 2399 #define IRAF_RSVP 0x00002000 /* RSVP packet for rsvpd */
2399 2400 #define IRAF_MROUTE_TUNNEL_SET 0x00004000 /* From ip_mroute_decap */
2400 2401 #define IRAF_PIM_REGISTER 0x00008000 /* From register_mforward */
2401 2402
2402 2403 #define IRAF_TX_MAC_EXEMPTABLE 0x00010000 /* Allow MAC_EXEMPT readdown */
2403 2404 #define IRAF_TX_SHARED_ADDR 0x00020000 /* Arrived on ALL_ZONES addr */
2404 2405 #define IRAF_ESP_UDP_PORTS 0x00040000 /* NAT-traversal packet */
2405 2406 #define IRAF_NO_HW_CKSUM 0x00080000 /* Force software cksum */
2406 2407
2407 2408 #define IRAF_ICMP_ERROR 0x00100000 /* Send to conn_recvicmp */
2408 2409 #define IRAF_ROUTER_ALERT 0x00200000 /* IPv6 router alert */
2409 2410 #define IRAF_L2SRC_SET 0x00400000 /* ira_l2src has been set */
2410 2411 #define IRAF_L2SRC_LOOPBACK 0x00800000 /* Came from us */
2411 2412
2412 2413 #define IRAF_L2DST_MULTICAST 0x01000000 /* Multicast at L2 */
2413 2414 #define IRAF_L2DST_BROADCAST 0x02000000 /* Broadcast at L2 */
2414 2415 /* Unused 0x04000000 */
2415 2416 /* Unused 0x08000000 */
2416 2417
2417 2418 /* Below starts with 0x10000000 */
2418 2419 #define IRAF_IS_IPV4 IAF_IS_IPV4
2419 2420 #define IRAF_TRUSTED_ICMP IAF_TRUSTED_ICMP
2420 2421 #define IRAF_NO_LOOP_ZONEID_SET IAF_NO_LOOP_ZONEID_SET
2421 2422 #define IRAF_LOOPBACK_COPY IAF_LOOPBACK_COPY
2422 2423
2423 2424 /*
2424 2425 * Normally these fields do not have a hold. But in some cases they do, for
2425 2426 * instance when we've gone through ip_*_attr_to/from_mblk.
2426 2427 * We use ira_free_flags to indicate that they have a hold and need to be
2427 2428 * released on cleanup.
2428 2429 */
2429 2430 #define IRA_FREE_CRED 0x00000001 /* ira_cred needs to be rele */
2430 2431 #define IRA_FREE_TSL 0x00000002 /* ira_tsl needs to be rele */
2431 2432
2432 2433 /*
2433 2434 * Optional destination cache entry for path MTU information,
2434 2435 * and ULP metrics.
2435 2436 */
2436 2437 struct dce_s {
2437 2438 uint_t dce_generation; /* Changed since cached? */
2438 2439 uint_t dce_flags; /* See below */
2439 2440 uint_t dce_ipversion; /* IPv4/IPv6 version */
2440 2441 uint32_t dce_pmtu; /* Path MTU if DCEF_PMTU */
2441 2442 uint32_t dce_ident; /* Per destination IP ident. */
2442 2443 iulp_t dce_uinfo; /* Metrics if DCEF_UINFO */
2443 2444
2444 2445 struct dce_s *dce_next;
2445 2446 struct dce_s **dce_ptpn;
2446 2447 struct dcb_s *dce_bucket;
2447 2448
2448 2449 union {
2449 2450 in6_addr_t dceu_v6addr;
2450 2451 ipaddr_t dceu_v4addr;
2451 2452 } dce_u;
2452 2453 #define dce_v4addr dce_u.dceu_v4addr
2453 2454 #define dce_v6addr dce_u.dceu_v6addr
2454 2455 /* Note that for IPv6+IPMP we use the ifindex for the upper interface */
2455 2456 uint_t dce_ifindex; /* For IPv6 link-locals */
2456 2457
2457 2458 kmutex_t dce_lock;
2458 2459 uint_t dce_refcnt;
2459 2460 uint64_t dce_last_change_time; /* Path MTU. In seconds */
2460 2461
2461 2462 ip_stack_t *dce_ipst; /* Does not have a netstack_hold */
2462 2463 };
2463 2464
2464 2465 /*
2465 2466 * Values for dce_generation.
2466 2467 *
2467 2468 * If a DCE has DCE_GENERATION_CONDEMNED, the last dce_refrele should delete
2468 2469 * it.
2469 2470 *
2470 2471 * DCE_GENERATION_VERIFY is never stored in dce_generation but it is
2471 2472 * stored in places that cache DCE (such as ixa_dce_generation).
2472 2473 * It is used as a signal that the cache is stale and needs to be reverified.
2473 2474 */
2474 2475 #define DCE_GENERATION_CONDEMNED 0
2475 2476 #define DCE_GENERATION_VERIFY 1
2476 2477 #define DCE_GENERATION_INITIAL 2
2477 2478 #define DCE_IS_CONDEMNED(dce) \
2478 2479 ((dce)->dce_generation == DCE_GENERATION_CONDEMNED)
2479 2480
2480 2481
2481 2482 /*
2482 2483 * Values for ips_src_generation.
2483 2484 *
2484 2485 * SRC_GENERATION_VERIFY is never stored in ips_src_generation but it is
2485 2486 * stored in places that cache IREs (ixa_src_generation). It is used as a
2486 2487 * signal that the cache is stale and needs to be reverified.
2487 2488 */
2488 2489 #define SRC_GENERATION_VERIFY 0
2489 2490 #define SRC_GENERATION_INITIAL 1
2490 2491
2491 2492 /*
2492 2493 * The kernel stores security attributes of all gateways in a database made
2493 2494 * up of one or more tsol_gcdb_t elements. Each tsol_gcdb_t contains the
2494 2495 * security-related credentials of the gateway. More than one gateways may
2495 2496 * share entries in the database.
2496 2497 *
2497 2498 * The tsol_gc_t structure represents the gateway to credential association,
2498 2499 * and refers to an entry in the database. One or more tsol_gc_t entities are
2499 2500 * grouped together to form one or more tsol_gcgrp_t, each representing the
2500 2501 * list of security attributes specific to the gateway. A gateway may be
2501 2502 * associated with at most one credentials group.
2502 2503 */
2503 2504 struct tsol_gcgrp_s;
2504 2505
2505 2506 extern uchar_t ip6opt_ls; /* TX IPv6 enabler */
2506 2507
2507 2508 /*
2508 2509 * Gateway security credential record.
2509 2510 */
2510 2511 typedef struct tsol_gcdb_s {
2511 2512 uint_t gcdb_refcnt; /* reference count */
2512 2513 struct rtsa_s gcdb_attr; /* security attributes */
2513 2514 #define gcdb_mask gcdb_attr.rtsa_mask
2514 2515 #define gcdb_doi gcdb_attr.rtsa_doi
2515 2516 #define gcdb_slrange gcdb_attr.rtsa_slrange
2516 2517 } tsol_gcdb_t;
2517 2518
2518 2519 /*
2519 2520 * Gateway to credential association.
2520 2521 */
2521 2522 typedef struct tsol_gc_s {
2522 2523 uint_t gc_refcnt; /* reference count */
2523 2524 struct tsol_gcgrp_s *gc_grp; /* pointer to group */
2524 2525 struct tsol_gc_s *gc_prev; /* previous in list */
2525 2526 struct tsol_gc_s *gc_next; /* next in list */
2526 2527 tsol_gcdb_t *gc_db; /* pointer to actual credentials */
2527 2528 } tsol_gc_t;
2528 2529
2529 2530 /*
2530 2531 * Gateway credentials group address.
2531 2532 */
2532 2533 typedef struct tsol_gcgrp_addr_s {
2533 2534 int ga_af; /* address family */
2534 2535 in6_addr_t ga_addr; /* IPv4 mapped or IPv6 address */
2535 2536 } tsol_gcgrp_addr_t;
2536 2537
2537 2538 /*
2538 2539 * Gateway credentials group.
2539 2540 */
2540 2541 typedef struct tsol_gcgrp_s {
2541 2542 uint_t gcgrp_refcnt; /* reference count */
2542 2543 krwlock_t gcgrp_rwlock; /* lock to protect following */
2543 2544 uint_t gcgrp_count; /* number of credentials */
2544 2545 tsol_gc_t *gcgrp_head; /* first credential in list */
2545 2546 tsol_gc_t *gcgrp_tail; /* last credential in list */
2546 2547 tsol_gcgrp_addr_t gcgrp_addr; /* next-hop gateway address */
2547 2548 } tsol_gcgrp_t;
2548 2549
2549 2550 extern kmutex_t gcgrp_lock;
2550 2551
2551 2552 #define GC_REFRELE(p) { \
2552 2553 ASSERT((p)->gc_grp != NULL); \
2553 2554 rw_enter(&(p)->gc_grp->gcgrp_rwlock, RW_WRITER); \
2554 2555 ASSERT((p)->gc_refcnt > 0); \
2555 2556 if (--((p)->gc_refcnt) == 0) \
2556 2557 gc_inactive(p); \
2557 2558 else \
2558 2559 rw_exit(&(p)->gc_grp->gcgrp_rwlock); \
2559 2560 }
2560 2561
2561 2562 #define GCGRP_REFHOLD(p) { \
2562 2563 mutex_enter(&gcgrp_lock); \
2563 2564 ++((p)->gcgrp_refcnt); \
2564 2565 ASSERT((p)->gcgrp_refcnt != 0); \
2565 2566 mutex_exit(&gcgrp_lock); \
2566 2567 }
2567 2568
2568 2569 #define GCGRP_REFRELE(p) { \
2569 2570 mutex_enter(&gcgrp_lock); \
2570 2571 ASSERT((p)->gcgrp_refcnt > 0); \
2571 2572 if (--((p)->gcgrp_refcnt) == 0) \
2572 2573 gcgrp_inactive(p); \
2573 2574 ASSERT(MUTEX_HELD(&gcgrp_lock)); \
2574 2575 mutex_exit(&gcgrp_lock); \
2575 2576 }
2576 2577
2577 2578 /*
2578 2579 * IRE gateway security attributes structure, pointed to by tsol_ire_gw_secattr
2579 2580 */
2580 2581 struct tsol_tnrhc;
2581 2582
2582 2583 struct tsol_ire_gw_secattr_s {
2583 2584 kmutex_t igsa_lock; /* lock to protect following */
2584 2585 struct tsol_tnrhc *igsa_rhc; /* host entry for gateway */
2585 2586 tsol_gc_t *igsa_gc; /* for prefix IREs */
2586 2587 };
2587 2588
2588 2589 void irb_refrele_ftable(irb_t *);
2589 2590
2590 2591 extern struct kmem_cache *rt_entry_cache;
2591 2592
2592 2593 typedef struct ire4 {
2593 2594 ipaddr_t ire4_mask; /* Mask for matching this IRE. */
2594 2595 ipaddr_t ire4_addr; /* Address this IRE represents. */
2595 2596 ipaddr_t ire4_gateway_addr; /* Gateway including for IRE_ONLINK */
2596 2597 ipaddr_t ire4_setsrc_addr; /* RTF_SETSRC */
2597 2598 } ire4_t;
2598 2599
2599 2600 typedef struct ire6 {
2600 2601 in6_addr_t ire6_mask; /* Mask for matching this IRE. */
2601 2602 in6_addr_t ire6_addr; /* Address this IRE represents. */
2602 2603 in6_addr_t ire6_gateway_addr; /* Gateway including for IRE_ONLINK */
2603 2604 in6_addr_t ire6_setsrc_addr; /* RTF_SETSRC */
2604 2605 } ire6_t;
2605 2606
2606 2607 typedef union ire_addr {
2607 2608 ire6_t ire6_u;
2608 2609 ire4_t ire4_u;
2609 2610 } ire_addr_u_t;
2610 2611
2611 2612 /*
2612 2613 * Internet Routing Entry
2613 2614 * When we have multiple identical IREs we logically add them by manipulating
2614 2615 * ire_identical_ref and ire_delete first decrements
2615 2616 * that and when it reaches 1 we know it is the last IRE.
2616 2617 * "identical" is defined as being the same for:
2617 2618 * ire_addr, ire_netmask, ire_gateway, ire_ill, ire_zoneid, and ire_type
2618 2619 * For instance, multiple IRE_BROADCASTs for the same subnet number are
2619 2620 * viewed as identical, and so are the IRE_INTERFACEs when there are
2620 2621 * multiple logical interfaces (on the same ill) with the same subnet prefix.
2621 2622 */
2622 2623 struct ire_s {
2623 2624 struct ire_s *ire_next; /* The hash chain must be first. */
2624 2625 struct ire_s **ire_ptpn; /* Pointer to previous next. */
2625 2626 uint32_t ire_refcnt; /* Number of references */
2626 2627 ill_t *ire_ill;
2627 2628 uint32_t ire_identical_ref; /* IRE_INTERFACE, IRE_BROADCAST */
2628 2629 uchar_t ire_ipversion; /* IPv4/IPv6 version */
2629 2630 ushort_t ire_type; /* Type of IRE */
2630 2631 uint_t ire_generation; /* Generation including CONDEMNED */
2631 2632 uint_t ire_ib_pkt_count; /* Inbound packets for ire_addr */
2632 2633 uint_t ire_ob_pkt_count; /* Outbound packets to ire_addr */
2633 2634 time_t ire_create_time; /* Time (in secs) IRE was created. */
2634 2635 uint32_t ire_flags; /* flags related to route (RTF_*) */
2635 2636 /*
2636 2637 * ire_testhidden is TRUE for INTERFACE IREs of IS_UNDER_IPMP(ill)
2637 2638 * interfaces
2638 2639 */
2639 2640 boolean_t ire_testhidden;
2640 2641 pfirerecv_t ire_recvfn; /* Receive side handling */
2641 2642 pfiresend_t ire_sendfn; /* Send side handling */
2642 2643 pfirepostfrag_t ire_postfragfn; /* Bottom end of send handling */
2643 2644
2644 2645 uint_t ire_masklen; /* # bits in ire_mask{,_v6} */
2645 2646 ire_addr_u_t ire_u; /* IPv4/IPv6 address info. */
2646 2647
2647 2648 irb_t *ire_bucket; /* Hash bucket when ire_ptphn is set */
2648 2649 kmutex_t ire_lock;
2649 2650 clock_t ire_last_used_time; /* For IRE_LOCAL reception */
2650 2651 tsol_ire_gw_secattr_t *ire_gw_secattr; /* gateway security attributes */
2651 2652 zoneid_t ire_zoneid;
2652 2653
2653 2654 /*
2654 2655 * Cached information of where to send packets that match this route.
2655 2656 * The ire_dep_* information is used to determine when ire_nce_cache
2656 2657 * needs to be updated.
2657 2658 * ire_nce_cache is the fastpath for the Neighbor Cache Entry
2658 2659 * for IPv6; arp info for IPv4
2659 2660 * Since this is a cache setup and torn down independently of
2660 2661 * applications we need to use nce_ref{rele,hold}_notr for it.
2661 2662 */
2662 2663 nce_t *ire_nce_cache;
2663 2664
2664 2665 /*
2665 2666 * Quick check whether the ire_type and ire_masklen indicates
2666 2667 * that the IRE can have ire_nce_cache set i.e., whether it is
2667 2668 * IRE_ONLINK and for a single destination.
2668 2669 */
2669 2670 boolean_t ire_nce_capable;
2670 2671
2671 2672 /*
2672 2673 * Dependency tracking so we can safely cache IRE and NCE pointers
2673 2674 * in offlink and onlink IREs.
2674 2675 * These are locked under the ips_ire_dep_lock rwlock. Write held
2675 2676 * when modifying the linkage.
2676 2677 * ire_dep_parent (Also chain towards IRE for nexthop)
2677 2678 * ire_dep_parent_generation: ire_generation of ire_dep_parent
2678 2679 * ire_dep_children (From parent to first child)
2679 2680 * ire_dep_sib_next (linked list of siblings)
2680 2681 * ire_dep_sib_ptpn (linked list of siblings)
2681 2682 *
2682 2683 * The parent has a ire_refhold on each child, and each child has
2683 2684 * an ire_refhold on its parent.
2684 2685 * Since ire_dep_parent is a cache setup and torn down independently of
2685 2686 * applications we need to use ire_ref{rele,hold}_notr for it.
2686 2687 */
2687 2688 ire_t *ire_dep_parent;
2688 2689 ire_t *ire_dep_children;
2689 2690 ire_t *ire_dep_sib_next;
2690 2691 ire_t **ire_dep_sib_ptpn; /* Pointer to previous next */
2691 2692 uint_t ire_dep_parent_generation;
2692 2693
2693 2694 uint_t ire_badcnt; /* Number of times ND_UNREACHABLE */
2694 2695 uint64_t ire_last_badcnt; /* In seconds */
2695 2696
2696 2697 /* ire_defense* and ire_last_used_time are only used on IRE_LOCALs */
2697 2698 uint_t ire_defense_count; /* number of ARP conflicts */
2698 2699 uint_t ire_defense_time; /* last time defended (secs) */
2699 2700
2700 2701 boolean_t ire_trace_disable; /* True when alloc fails */
2701 2702 ip_stack_t *ire_ipst; /* Does not have a netstack_hold */
2702 2703 iulp_t ire_metrics;
2703 2704 /*
2704 2705 * default and prefix routes that are added without explicitly
2705 2706 * specifying the interface are termed "unbound" routes, and will
2706 2707 * have ire_unbound set to true.
2707 2708 */
2708 2709 boolean_t ire_unbound;
2709 2710 };
2710 2711
2711 2712 /* IPv4 compatibility macros */
2712 2713 #define ire_mask ire_u.ire4_u.ire4_mask
2713 2714 #define ire_addr ire_u.ire4_u.ire4_addr
2714 2715 #define ire_gateway_addr ire_u.ire4_u.ire4_gateway_addr
2715 2716 #define ire_setsrc_addr ire_u.ire4_u.ire4_setsrc_addr
2716 2717
2717 2718 #define ire_mask_v6 ire_u.ire6_u.ire6_mask
2718 2719 #define ire_addr_v6 ire_u.ire6_u.ire6_addr
2719 2720 #define ire_gateway_addr_v6 ire_u.ire6_u.ire6_gateway_addr
2720 2721 #define ire_setsrc_addr_v6 ire_u.ire6_u.ire6_setsrc_addr
2721 2722
2722 2723 /*
2723 2724 * Values for ire_generation.
2724 2725 *
2725 2726 * If an IRE is marked with IRE_IS_CONDEMNED, the last walker of
2726 2727 * the bucket should delete this IRE from this bucket.
2727 2728 *
2728 2729 * IRE_GENERATION_VERIFY is never stored in ire_generation but it is
2729 2730 * stored in places that cache IREs (such as ixa_ire_generation and
2730 2731 * ire_dep_parent_generation). It is used as a signal that the cache is
2731 2732 * stale and needs to be reverified.
2732 2733 */
2733 2734 #define IRE_GENERATION_CONDEMNED 0
2734 2735 #define IRE_GENERATION_VERIFY 1
2735 2736 #define IRE_GENERATION_INITIAL 2
2736 2737 #define IRE_IS_CONDEMNED(ire) \
2737 2738 ((ire)->ire_generation == IRE_GENERATION_CONDEMNED)
2738 2739
2739 2740 /* Convenient typedefs for sockaddrs */
2740 2741 typedef struct sockaddr_in sin_t;
2741 2742 typedef struct sockaddr_in6 sin6_t;
2742 2743
2743 2744 /* Name/Value Descriptor. */
2744 2745 typedef struct nv_s {
2745 2746 uint64_t nv_value;
2746 2747 char *nv_name;
2747 2748 } nv_t;
2748 2749
2749 2750 #define ILL_FRAG_HASH(s, i) \
2750 2751 ((ntohl(s) ^ ((i) ^ ((i) >> 8))) % ILL_FRAG_HASH_TBL_COUNT)
2751 2752
2752 2753 /*
2753 2754 * The MAX number of allowed fragmented packets per hash bucket
2754 2755 * calculation is based on the most common mtu size of 1500. This limit
2755 2756 * will work well for other mtu sizes as well.
2756 2757 */
2757 2758 #define COMMON_IP_MTU 1500
2758 2759 #define MAX_FRAG_MIN 10
2759 2760 #define MAX_FRAG_PKTS(ipst) \
2760 2761 MAX(MAX_FRAG_MIN, (2 * (ipst->ips_ip_reass_queue_bytes / \
2761 2762 (COMMON_IP_MTU * ILL_FRAG_HASH_TBL_COUNT))))
2762 2763
2763 2764 /*
2764 2765 * Maximum dups allowed per packet.
2765 2766 */
2766 2767 extern uint_t ip_max_frag_dups;
2767 2768
2768 2769 /*
2769 2770 * Per-packet information for received packets and transmitted.
2770 2771 * Used by the transport protocols when converting between the packet
2771 2772 * and ancillary data and socket options.
2772 2773 *
2773 2774 * Note: This private data structure and related IPPF_* constant
2774 2775 * definitions are exposed to enable compilation of some debugging tools
2775 2776 * like lsof which use struct tcp_t in <inet/tcp.h>. This is intended to be
2776 2777 * a temporary hack and long term alternate interfaces should be defined
2777 2778 * to support the needs of such tools and private definitions moved to
2778 2779 * private headers.
2779 2780 */
2780 2781 struct ip_pkt_s {
2781 2782 uint_t ipp_fields; /* Which fields are valid */
2782 2783 in6_addr_t ipp_addr; /* pktinfo src/dst addr */
2783 2784 #define ipp_addr_v4 V4_PART_OF_V6(ipp_addr)
2784 2785 uint_t ipp_unicast_hops; /* IPV6_UNICAST_HOPS, IP_TTL */
2785 2786 uint_t ipp_hoplimit; /* IPV6_HOPLIMIT */
2786 2787 uint_t ipp_hopoptslen;
2787 2788 uint_t ipp_rthdrdstoptslen;
2788 2789 uint_t ipp_rthdrlen;
2789 2790 uint_t ipp_dstoptslen;
2790 2791 uint_t ipp_fraghdrlen;
2791 2792 ip6_hbh_t *ipp_hopopts;
2792 2793 ip6_dest_t *ipp_rthdrdstopts;
2793 2794 ip6_rthdr_t *ipp_rthdr;
2794 2795 ip6_dest_t *ipp_dstopts;
2795 2796 ip6_frag_t *ipp_fraghdr;
2796 2797 uint8_t ipp_tclass; /* IPV6_TCLASS */
2797 2798 uint8_t ipp_type_of_service; /* IP_TOS */
2798 2799 uint_t ipp_ipv4_options_len; /* Len of IPv4 options */
2799 2800 uint8_t *ipp_ipv4_options; /* Ptr to IPv4 options */
2800 2801 uint_t ipp_label_len_v4; /* Len of TX label for IPv4 */
2801 2802 uint8_t *ipp_label_v4; /* TX label for IPv4 */
2802 2803 uint_t ipp_label_len_v6; /* Len of TX label for IPv6 */
2803 2804 uint8_t *ipp_label_v6; /* TX label for IPv6 */
2804 2805 };
2805 2806 typedef struct ip_pkt_s ip_pkt_t;
2806 2807
2807 2808 extern void ip_pkt_free(ip_pkt_t *); /* free storage inside ip_pkt_t */
2808 2809 extern ipaddr_t ip_pkt_source_route_v4(const ip_pkt_t *);
2809 2810 extern in6_addr_t *ip_pkt_source_route_v6(const ip_pkt_t *);
2810 2811 extern int ip_pkt_copy(ip_pkt_t *, ip_pkt_t *, int);
2811 2812 extern void ip_pkt_source_route_reverse_v4(ip_pkt_t *);
2812 2813
2813 2814 /* ipp_fields values */
2814 2815 #define IPPF_ADDR 0x0001 /* Part of in6_pktinfo: src/dst addr */
2815 2816 #define IPPF_HOPLIMIT 0x0002 /* Overrides unicast and multicast */
2816 2817 #define IPPF_TCLASS 0x0004 /* Overrides class in sin6_flowinfo */
2817 2818
2818 2819 #define IPPF_HOPOPTS 0x0010 /* ipp_hopopts set */
2819 2820 #define IPPF_RTHDR 0x0020 /* ipp_rthdr set */
2820 2821 #define IPPF_RTHDRDSTOPTS 0x0040 /* ipp_rthdrdstopts set */
2821 2822 #define IPPF_DSTOPTS 0x0080 /* ipp_dstopts set */
2822 2823
2823 2824 #define IPPF_IPV4_OPTIONS 0x0100 /* ipp_ipv4_options set */
2824 2825 #define IPPF_LABEL_V4 0x0200 /* ipp_label_v4 set */
2825 2826 #define IPPF_LABEL_V6 0x0400 /* ipp_label_v6 set */
2826 2827
2827 2828 #define IPPF_FRAGHDR 0x0800 /* Used for IPsec receive side */
2828 2829
2829 2830 /*
2830 2831 * Data structure which is passed to conn_opt_get/set.
2831 2832 * The conn_t is included even though it can be inferred from queue_t.
2832 2833 * setsockopt and getsockopt use conn_ixa and conn_xmit_ipp. However,
2833 2834 * when handling ancillary data we use separate ixa and ipps.
2834 2835 */
2835 2836 typedef struct conn_opt_arg_s {
2836 2837 conn_t *coa_connp;
2837 2838 ip_xmit_attr_t *coa_ixa;
2838 2839 ip_pkt_t *coa_ipp;
2839 2840 boolean_t coa_ancillary; /* Ancillary data and not setsockopt */
2840 2841 uint_t coa_changed; /* See below */
2841 2842 } conn_opt_arg_t;
2842 2843
2843 2844 /*
2844 2845 * Flags for what changed.
2845 2846 * If we want to be more efficient in the future we can have more fine
2846 2847 * grained flags e.g., a flag for just IP_TOS changing.
2847 2848 * For now we either call ip_set_destination (for "route changed")
2848 2849 * and/or conn_build_hdr_template/conn_prepend_hdr (for "header changed").
2849 2850 */
2850 2851 #define COA_HEADER_CHANGED 0x0001
2851 2852 #define COA_ROUTE_CHANGED 0x0002
2852 2853 #define COA_RCVBUF_CHANGED 0x0004 /* SO_RCVBUF */
2853 2854 #define COA_SNDBUF_CHANGED 0x0008 /* SO_SNDBUF */
2854 2855 #define COA_WROFF_CHANGED 0x0010 /* Header size changed */
2855 2856 #define COA_ICMP_BIND_NEEDED 0x0020
2856 2857 #define COA_OOBINLINE_CHANGED 0x0040
2857 2858
2858 2859 #define TCP_PORTS_OFFSET 0
2859 2860 #define UDP_PORTS_OFFSET 0
2860 2861
2861 2862 /*
2862 2863 * lookups return the ill/ipif only if the flags are clear OR Iam writer.
2863 2864 * ill / ipif lookup functions increment the refcnt on the ill / ipif only
2864 2865 * after calling these macros. This ensures that the refcnt on the ipif or
2865 2866 * ill will eventually drop down to zero.
2866 2867 */
2867 2868 #define ILL_LOOKUP_FAILED 1 /* Used as error code */
2868 2869 #define IPIF_LOOKUP_FAILED 2 /* Used as error code */
2869 2870
2870 2871 #define ILL_CAN_LOOKUP(ill) \
2871 2872 (!((ill)->ill_state_flags & ILL_CONDEMNED) || \
2872 2873 IAM_WRITER_ILL(ill))
2873 2874
2874 2875 #define ILL_IS_CONDEMNED(ill) \
2875 2876 ((ill)->ill_state_flags & ILL_CONDEMNED)
2876 2877
2877 2878 #define IPIF_CAN_LOOKUP(ipif) \
2878 2879 (!((ipif)->ipif_state_flags & IPIF_CONDEMNED) || \
2879 2880 IAM_WRITER_IPIF(ipif))
2880 2881
2881 2882 #define IPIF_IS_CONDEMNED(ipif) \
2882 2883 ((ipif)->ipif_state_flags & IPIF_CONDEMNED)
2883 2884
2884 2885 #define IPIF_IS_CHANGING(ipif) \
2885 2886 ((ipif)->ipif_state_flags & IPIF_CHANGING)
2886 2887
2887 2888 /* Macros used to assert that this thread is a writer */
2888 2889 #define IAM_WRITER_IPSQ(ipsq) ((ipsq)->ipsq_xop->ipx_writer == curthread)
2889 2890 #define IAM_WRITER_ILL(ill) IAM_WRITER_IPSQ((ill)->ill_phyint->phyint_ipsq)
2890 2891 #define IAM_WRITER_IPIF(ipif) IAM_WRITER_ILL((ipif)->ipif_ill)
2891 2892
2892 2893 /*
2893 2894 * Grab ill locks in the proper order. The order is highest addressed
2894 2895 * ill is locked first.
2895 2896 */
2896 2897 #define GRAB_ILL_LOCKS(ill_1, ill_2) \
2897 2898 { \
2898 2899 if ((ill_1) > (ill_2)) { \
2899 2900 if (ill_1 != NULL) \
2900 2901 mutex_enter(&(ill_1)->ill_lock); \
2901 2902 if (ill_2 != NULL) \
2902 2903 mutex_enter(&(ill_2)->ill_lock); \
2903 2904 } else { \
2904 2905 if (ill_2 != NULL) \
2905 2906 mutex_enter(&(ill_2)->ill_lock); \
2906 2907 if (ill_1 != NULL && ill_1 != ill_2) \
2907 2908 mutex_enter(&(ill_1)->ill_lock); \
2908 2909 } \
2909 2910 }
2910 2911
2911 2912 #define RELEASE_ILL_LOCKS(ill_1, ill_2) \
2912 2913 { \
2913 2914 if (ill_1 != NULL) \
2914 2915 mutex_exit(&(ill_1)->ill_lock); \
2915 2916 if (ill_2 != NULL && ill_2 != ill_1) \
2916 2917 mutex_exit(&(ill_2)->ill_lock); \
2917 2918 }
2918 2919
2919 2920 /* Get the other protocol instance ill */
2920 2921 #define ILL_OTHER(ill) \
2921 2922 ((ill)->ill_isv6 ? (ill)->ill_phyint->phyint_illv4 : \
2922 2923 (ill)->ill_phyint->phyint_illv6)
2923 2924
2924 2925 /* ioctl command info: Ioctl properties extracted and stored in here */
2925 2926 typedef struct cmd_info_s
2926 2927 {
2927 2928 ipif_t *ci_ipif; /* ipif associated with [l]ifreq ioctl's */
2928 2929 sin_t *ci_sin; /* the sin struct passed down */
2929 2930 sin6_t *ci_sin6; /* the sin6_t struct passed down */
2930 2931 struct lifreq *ci_lifr; /* the lifreq struct passed down */
2931 2932 } cmd_info_t;
2932 2933
2933 2934 extern struct kmem_cache *ire_cache;
2934 2935
2935 2936 extern ipaddr_t ip_g_all_ones;
2936 2937
2937 2938 extern uint_t ip_loopback_mtu; /* /etc/system */
2938 2939 extern uint_t ip_loopback_mtuplus;
2939 2940 extern uint_t ip_loopback_mtu_v6plus;
2940 2941
2941 2942 extern vmem_t *ip_minor_arena_sa;
2942 2943 extern vmem_t *ip_minor_arena_la;
2943 2944
2944 2945 /*
2945 2946 * ip_g_forward controls IP forwarding. It takes two values:
2946 2947 * 0: IP_FORWARD_NEVER Don't forward packets ever.
2947 2948 * 1: IP_FORWARD_ALWAYS Forward packets for elsewhere.
2948 2949 *
2949 2950 * RFC1122 says there must be a configuration switch to control forwarding,
2950 2951 * but that the default MUST be to not forward packets ever. Implicit
2951 2952 * control based on configuration of multiple interfaces MUST NOT be
2952 2953 * implemented (Section 3.1). SunOS 4.1 did provide the "automatic" capability
2953 2954 * and, in fact, it was the default. That capability is now provided in the
2954 2955 * /etc/rc2.d/S69inet script.
2955 2956 */
2956 2957
2957 2958 #define ips_ip_respond_to_address_mask_broadcast \
2958 2959 ips_propinfo_tbl[0].prop_cur_bval
2959 2960 #define ips_ip_g_resp_to_echo_bcast ips_propinfo_tbl[1].prop_cur_bval
2960 2961 #define ips_ip_g_resp_to_echo_mcast ips_propinfo_tbl[2].prop_cur_bval
2961 2962 #define ips_ip_g_resp_to_timestamp ips_propinfo_tbl[3].prop_cur_bval
2962 2963 #define ips_ip_g_resp_to_timestamp_bcast ips_propinfo_tbl[4].prop_cur_bval
2963 2964 #define ips_ip_g_send_redirects ips_propinfo_tbl[5].prop_cur_bval
2964 2965 #define ips_ip_g_forward_directed_bcast ips_propinfo_tbl[6].prop_cur_bval
2965 2966 #define ips_ip_mrtdebug ips_propinfo_tbl[7].prop_cur_uval
2966 2967 #define ips_ip_ire_reclaim_fraction ips_propinfo_tbl[8].prop_cur_uval
2967 2968 #define ips_ip_nce_reclaim_fraction ips_propinfo_tbl[9].prop_cur_uval
2968 2969 #define ips_ip_dce_reclaim_fraction ips_propinfo_tbl[10].prop_cur_uval
2969 2970 #define ips_ip_def_ttl ips_propinfo_tbl[11].prop_cur_uval
2970 2971 #define ips_ip_forward_src_routed ips_propinfo_tbl[12].prop_cur_bval
2971 2972 #define ips_ip_wroff_extra ips_propinfo_tbl[13].prop_cur_uval
2972 2973 #define ips_ip_pathmtu_interval ips_propinfo_tbl[14].prop_cur_uval
2973 2974 #define ips_ip_icmp_return ips_propinfo_tbl[15].prop_cur_uval
2974 2975 #define ips_ip_path_mtu_discovery ips_propinfo_tbl[16].prop_cur_bval
2975 2976 #define ips_ip_pmtu_min ips_propinfo_tbl[17].prop_cur_uval
2976 2977 #define ips_ip_ignore_redirect ips_propinfo_tbl[18].prop_cur_bval
2977 2978 #define ips_ip_arp_icmp_error ips_propinfo_tbl[19].prop_cur_bval
2978 2979 #define ips_ip_broadcast_ttl ips_propinfo_tbl[20].prop_cur_uval
2979 2980 #define ips_ip_icmp_err_interval ips_propinfo_tbl[21].prop_cur_uval
2980 2981 #define ips_ip_icmp_err_burst ips_propinfo_tbl[22].prop_cur_uval
2981 2982 #define ips_ip_reass_queue_bytes ips_propinfo_tbl[23].prop_cur_uval
2982 2983 #define ips_ip_strict_dst_multihoming ips_propinfo_tbl[24].prop_cur_uval
2983 2984 #define ips_ip_addrs_per_if ips_propinfo_tbl[25].prop_cur_uval
2984 2985 #define ips_ipsec_override_persocket_policy ips_propinfo_tbl[26].prop_cur_bval
2985 2986 #define ips_icmp_accept_clear_messages ips_propinfo_tbl[27].prop_cur_bval
2986 2987 #define ips_igmp_accept_clear_messages ips_propinfo_tbl[28].prop_cur_bval
2987 2988
2988 2989 /* IPv6 configuration knobs */
2989 2990 #define ips_delay_first_probe_time ips_propinfo_tbl[29].prop_cur_uval
2990 2991 #define ips_max_unicast_solicit ips_propinfo_tbl[30].prop_cur_uval
2991 2992 #define ips_ipv6_def_hops ips_propinfo_tbl[31].prop_cur_uval
2992 2993 #define ips_ipv6_icmp_return ips_propinfo_tbl[32].prop_cur_uval
2993 2994 #define ips_ipv6_forward_src_routed ips_propinfo_tbl[33].prop_cur_bval
2994 2995 #define ips_ipv6_resp_echo_mcast ips_propinfo_tbl[34].prop_cur_bval
2995 2996 #define ips_ipv6_send_redirects ips_propinfo_tbl[35].prop_cur_bval
2996 2997 #define ips_ipv6_ignore_redirect ips_propinfo_tbl[36].prop_cur_bval
2997 2998 #define ips_ipv6_strict_dst_multihoming ips_propinfo_tbl[37].prop_cur_uval
2998 2999 #define ips_src_check ips_propinfo_tbl[38].prop_cur_uval
2999 3000 #define ips_ipsec_policy_log_interval ips_propinfo_tbl[39].prop_cur_uval
3000 3001 #define ips_pim_accept_clear_messages ips_propinfo_tbl[40].prop_cur_bval
3001 3002 #define ips_ip_ndp_unsolicit_interval ips_propinfo_tbl[41].prop_cur_uval
3002 3003 #define ips_ip_ndp_unsolicit_count ips_propinfo_tbl[42].prop_cur_uval
3003 3004 #define ips_ipv6_ignore_home_address_opt ips_propinfo_tbl[43].prop_cur_bval
3004 3005
3005 3006 /* Misc IP configuration knobs */
3006 3007 #define ips_ip_policy_mask ips_propinfo_tbl[44].prop_cur_uval
3007 3008 #define ips_ip_ecmp_behavior ips_propinfo_tbl[45].prop_cur_uval
3008 3009 #define ips_ip_multirt_ttl ips_propinfo_tbl[46].prop_cur_uval
3009 3010 #define ips_ip_ire_badcnt_lifetime ips_propinfo_tbl[47].prop_cur_uval
3010 3011 #define ips_ip_max_temp_idle ips_propinfo_tbl[48].prop_cur_uval
3011 3012 #define ips_ip_max_temp_defend ips_propinfo_tbl[49].prop_cur_uval
3012 3013 #define ips_ip_max_defend ips_propinfo_tbl[50].prop_cur_uval
3013 3014 #define ips_ip_defend_interval ips_propinfo_tbl[51].prop_cur_uval
3014 3015 #define ips_ip_dup_recovery ips_propinfo_tbl[52].prop_cur_uval
3015 3016 #define ips_ip_restrict_interzone_loopback ips_propinfo_tbl[53].prop_cur_bval
3016 3017 #define ips_ip_lso_outbound ips_propinfo_tbl[54].prop_cur_bval
3017 3018 #define ips_igmp_max_version ips_propinfo_tbl[55].prop_cur_uval
3018 3019 #define ips_mld_max_version ips_propinfo_tbl[56].prop_cur_uval
3019 3020 #define ips_ip_forwarding ips_propinfo_tbl[57].prop_cur_bval
3020 3021 #define ips_ipv6_forwarding ips_propinfo_tbl[58].prop_cur_bval
3021 3022 #define ips_ip_reassembly_timeout ips_propinfo_tbl[59].prop_cur_uval
3022 3023 #define ips_ipv6_reassembly_timeout ips_propinfo_tbl[60].prop_cur_uval
3023 3024 #define ips_ip_cgtp_filter ips_propinfo_tbl[61].prop_cur_bval
3024 3025 #define ips_arp_probe_delay ips_propinfo_tbl[62].prop_cur_uval
3025 3026 #define ips_arp_fastprobe_delay ips_propinfo_tbl[63].prop_cur_uval
3026 3027 #define ips_arp_probe_interval ips_propinfo_tbl[64].prop_cur_uval
3027 3028 #define ips_arp_fastprobe_interval ips_propinfo_tbl[65].prop_cur_uval
3028 3029 #define ips_arp_probe_count ips_propinfo_tbl[66].prop_cur_uval
3029 3030 #define ips_arp_fastprobe_count ips_propinfo_tbl[67].prop_cur_uval
3030 3031 #define ips_ipv4_dad_announce_interval ips_propinfo_tbl[68].prop_cur_uval
3031 3032 #define ips_ipv6_dad_announce_interval ips_propinfo_tbl[69].prop_cur_uval
3032 3033 #define ips_arp_defend_interval ips_propinfo_tbl[70].prop_cur_uval
3033 3034 #define ips_arp_defend_rate ips_propinfo_tbl[71].prop_cur_uval
3034 3035 #define ips_ndp_defend_interval ips_propinfo_tbl[72].prop_cur_uval
3035 3036 #define ips_ndp_defend_rate ips_propinfo_tbl[73].prop_cur_uval
3036 3037 #define ips_arp_defend_period ips_propinfo_tbl[74].prop_cur_uval
3037 3038 #define ips_ndp_defend_period ips_propinfo_tbl[75].prop_cur_uval
3038 3039 #define ips_ipv4_icmp_return_pmtu ips_propinfo_tbl[76].prop_cur_bval
3039 3040 #define ips_ipv6_icmp_return_pmtu ips_propinfo_tbl[77].prop_cur_bval
3040 3041 #define ips_ip_arp_publish_count ips_propinfo_tbl[78].prop_cur_uval
3041 3042 #define ips_ip_arp_publish_interval ips_propinfo_tbl[79].prop_cur_uval
3042 3043 #define ips_ip_strict_src_multihoming ips_propinfo_tbl[80].prop_cur_uval
3043 3044 #define ips_ipv6_strict_src_multihoming ips_propinfo_tbl[81].prop_cur_uval
3044 3045 #define ips_ipv6_drop_inbound_icmpv6 ips_propinfo_tbl[82].prop_cur_bval
3045 3046 #define ips_ip_dce_reclaim_threshold ips_propinfo_tbl[83].prop_cur_uval
3046 3047
3047 3048 extern int dohwcksum; /* use h/w cksum if supported by the h/w */
3048 3049 #ifdef ZC_TEST
3049 3050 extern int noswcksum;
3050 3051 #endif
3051 3052
3052 3053 extern char ipif_loopback_name[];
3053 3054
3054 3055 extern nv_t *ire_nv_tbl;
3055 3056
3056 3057 extern struct module_info ip_mod_info;
3057 3058
3058 3059 #define HOOKS4_INTERESTED_PHYSICAL_IN(ipst) \
3059 3060 ((ipst)->ips_ip4_physical_in_event.he_interested)
3060 3061 #define HOOKS6_INTERESTED_PHYSICAL_IN(ipst) \
3061 3062 ((ipst)->ips_ip6_physical_in_event.he_interested)
3062 3063 #define HOOKS4_INTERESTED_PHYSICAL_OUT(ipst) \
3063 3064 ((ipst)->ips_ip4_physical_out_event.he_interested)
3064 3065 #define HOOKS6_INTERESTED_PHYSICAL_OUT(ipst) \
3065 3066 ((ipst)->ips_ip6_physical_out_event.he_interested)
3066 3067 #define HOOKS4_INTERESTED_FORWARDING(ipst) \
3067 3068 ((ipst)->ips_ip4_forwarding_event.he_interested)
3068 3069 #define HOOKS6_INTERESTED_FORWARDING(ipst) \
3069 3070 ((ipst)->ips_ip6_forwarding_event.he_interested)
3070 3071 #define HOOKS4_INTERESTED_LOOPBACK_IN(ipst) \
3071 3072 ((ipst)->ips_ip4_loopback_in_event.he_interested)
3072 3073 #define HOOKS6_INTERESTED_LOOPBACK_IN(ipst) \
3073 3074 ((ipst)->ips_ip6_loopback_in_event.he_interested)
3074 3075 #define HOOKS4_INTERESTED_LOOPBACK_OUT(ipst) \
3075 3076 ((ipst)->ips_ip4_loopback_out_event.he_interested)
3076 3077 #define HOOKS6_INTERESTED_LOOPBACK_OUT(ipst) \
3077 3078 ((ipst)->ips_ip6_loopback_out_event.he_interested)
3078 3079 /*
3079 3080 * Hooks marcos used inside of ip
3080 3081 * The callers use the above INTERESTED macros first, hence
3081 3082 * the he_interested check is superflous.
3082 3083 */
3083 3084 #define FW_HOOKS(_hook, _event, _ilp, _olp, _iph, _fm, _m, _llm, ipst, _err) \
3084 3085 if ((_hook).he_interested) { \
3085 3086 hook_pkt_event_t info; \
3086 3087 \
3087 3088 _NOTE(CONSTCOND) \
3088 3089 ASSERT((_ilp != NULL) || (_olp != NULL)); \
3089 3090 \
3090 3091 FW_SET_ILL_INDEX(info.hpe_ifp, (ill_t *)_ilp); \
3091 3092 FW_SET_ILL_INDEX(info.hpe_ofp, (ill_t *)_olp); \
3092 3093 info.hpe_protocol = ipst->ips_ipv4_net_data; \
3093 3094 info.hpe_hdr = _iph; \
3094 3095 info.hpe_mp = &(_fm); \
3095 3096 info.hpe_mb = _m; \
3096 3097 info.hpe_flags = _llm; \
3097 3098 _err = hook_run(ipst->ips_ipv4_net_data->netd_hooks, \
3098 3099 _event, (hook_data_t)&info); \
3099 3100 if (_err != 0) { \
3100 3101 ip2dbg(("%s hook dropped mblk chain %p hdr %p\n",\
3101 3102 (_hook).he_name, (void *)_fm, (void *)_m)); \
3102 3103 if (_fm != NULL) { \
3103 3104 freemsg(_fm); \
3104 3105 _fm = NULL; \
3105 3106 } \
3106 3107 _iph = NULL; \
3107 3108 _m = NULL; \
3108 3109 } else { \
3109 3110 _iph = info.hpe_hdr; \
3110 3111 _m = info.hpe_mb; \
3111 3112 } \
3112 3113 }
3113 3114
3114 3115 #define FW_HOOKS6(_hook, _event, _ilp, _olp, _iph, _fm, _m, _llm, ipst, _err) \
3115 3116 if ((_hook).he_interested) { \
3116 3117 hook_pkt_event_t info; \
3117 3118 \
3118 3119 _NOTE(CONSTCOND) \
3119 3120 ASSERT((_ilp != NULL) || (_olp != NULL)); \
3120 3121 \
3121 3122 FW_SET_ILL_INDEX(info.hpe_ifp, (ill_t *)_ilp); \
3122 3123 FW_SET_ILL_INDEX(info.hpe_ofp, (ill_t *)_olp); \
3123 3124 info.hpe_protocol = ipst->ips_ipv6_net_data; \
3124 3125 info.hpe_hdr = _iph; \
3125 3126 info.hpe_mp = &(_fm); \
3126 3127 info.hpe_mb = _m; \
3127 3128 info.hpe_flags = _llm; \
3128 3129 _err = hook_run(ipst->ips_ipv6_net_data->netd_hooks, \
3129 3130 _event, (hook_data_t)&info); \
3130 3131 if (_err != 0) { \
3131 3132 ip2dbg(("%s hook dropped mblk chain %p hdr %p\n",\
3132 3133 (_hook).he_name, (void *)_fm, (void *)_m)); \
3133 3134 if (_fm != NULL) { \
3134 3135 freemsg(_fm); \
3135 3136 _fm = NULL; \
3136 3137 } \
3137 3138 _iph = NULL; \
3138 3139 _m = NULL; \
3139 3140 } else { \
3140 3141 _iph = info.hpe_hdr; \
3141 3142 _m = info.hpe_mb; \
3142 3143 } \
3143 3144 }
3144 3145
3145 3146 #define FW_SET_ILL_INDEX(fp, ill) \
3146 3147 _NOTE(CONSTCOND) \
3147 3148 if ((ill) == NULL || (ill)->ill_phyint == NULL) { \
3148 3149 (fp) = 0; \
3149 3150 _NOTE(CONSTCOND) \
3150 3151 } else if (IS_UNDER_IPMP(ill)) { \
3151 3152 (fp) = ipmp_ill_get_ipmp_ifindex(ill); \
3152 3153 } else { \
3153 3154 (fp) = (ill)->ill_phyint->phyint_ifindex; \
3154 3155 }
3155 3156
3156 3157 /*
3157 3158 * Network byte order macros
3158 3159 */
3159 3160 #ifdef _BIG_ENDIAN
3160 3161 #define N_IN_CLASSA_NET IN_CLASSA_NET
3161 3162 #define N_IN_CLASSD_NET IN_CLASSD_NET
3162 3163 #define N_INADDR_UNSPEC_GROUP INADDR_UNSPEC_GROUP
3163 3164 #define N_IN_LOOPBACK_NET (ipaddr_t)0x7f000000U
3164 3165 #else /* _BIG_ENDIAN */
3165 3166 #define N_IN_CLASSA_NET (ipaddr_t)0x000000ffU
3166 3167 #define N_IN_CLASSD_NET (ipaddr_t)0x000000f0U
3167 3168 #define N_INADDR_UNSPEC_GROUP (ipaddr_t)0x000000e0U
3168 3169 #define N_IN_LOOPBACK_NET (ipaddr_t)0x0000007fU
3169 3170 #endif /* _BIG_ENDIAN */
3170 3171 #define CLASSD(addr) (((addr) & N_IN_CLASSD_NET) == N_INADDR_UNSPEC_GROUP)
3171 3172 #define CLASSE(addr) (((addr) & N_IN_CLASSD_NET) == N_IN_CLASSD_NET)
3172 3173 #define IP_LOOPBACK_ADDR(addr) \
3173 3174 (((addr) & N_IN_CLASSA_NET == N_IN_LOOPBACK_NET))
3174 3175
3175 3176 extern int ip_debug;
3176 3177 extern uint_t ip_thread_data;
3177 3178 extern krwlock_t ip_thread_rwlock;
3178 3179 extern list_t ip_thread_list;
3179 3180
3180 3181 #ifdef IP_DEBUG
3181 3182 #include <sys/debug.h>
3182 3183 #include <sys/promif.h>
3183 3184
3184 3185 #define ip0dbg(a) printf a
3185 3186 #define ip1dbg(a) if (ip_debug > 2) printf a
3186 3187 #define ip2dbg(a) if (ip_debug > 3) printf a
3187 3188 #define ip3dbg(a) if (ip_debug > 4) printf a
3188 3189 #else
3189 3190 #define ip0dbg(a) /* */
3190 3191 #define ip1dbg(a) /* */
3191 3192 #define ip2dbg(a) /* */
3192 3193 #define ip3dbg(a) /* */
3193 3194 #endif /* IP_DEBUG */
3194 3195
3195 3196 /* Default MAC-layer address string length for mac_colon_addr */
3196 3197 #define MAC_STR_LEN 128
3197 3198
3198 3199 struct mac_header_info_s;
3199 3200
3200 3201 extern void ill_frag_timer(void *);
3201 3202 extern ill_t *ill_first(int, int, ill_walk_context_t *, ip_stack_t *);
3202 3203 extern ill_t *ill_next(ill_walk_context_t *, ill_t *);
3203 3204 extern void ill_frag_timer_start(ill_t *);
3204 3205 extern void ill_nic_event_dispatch(ill_t *, lif_if_t, nic_event_t,
3205 3206 nic_event_data_t, size_t);
3206 3207 extern mblk_t *ip_carve_mp(mblk_t **, ssize_t);
3207 3208 extern mblk_t *ip_dlpi_alloc(size_t, t_uscalar_t);
3208 3209 extern mblk_t *ip_dlnotify_alloc(uint_t, uint_t);
3209 3210 extern mblk_t *ip_dlnotify_alloc2(uint_t, uint_t, uint_t);
3210 3211 extern char *ip_dot_addr(ipaddr_t, char *);
3211 3212 extern const char *mac_colon_addr(const uint8_t *, size_t, char *, size_t);
3212 3213 extern void ip_lwput(queue_t *, mblk_t *);
3213 3214 extern boolean_t icmp_err_rate_limit(ip_stack_t *);
3214 3215 extern void icmp_frag_needed(mblk_t *, int, ip_recv_attr_t *);
3215 3216 extern mblk_t *icmp_inbound_v4(mblk_t *, ip_recv_attr_t *);
3216 3217 extern void icmp_time_exceeded(mblk_t *, uint8_t, ip_recv_attr_t *);
3217 3218 extern void icmp_unreachable(mblk_t *, uint8_t, ip_recv_attr_t *);
3218 3219 extern boolean_t ip_ipsec_policy_inherit(conn_t *, conn_t *, ip_recv_attr_t *);
3219 3220 extern void *ip_pullup(mblk_t *, ssize_t, ip_recv_attr_t *);
3220 3221 extern void ip_setl2src(mblk_t *, ip_recv_attr_t *, ill_t *);
3221 3222 extern mblk_t *ip_check_and_align_header(mblk_t *, uint_t, ip_recv_attr_t *);
3222 3223 extern mblk_t *ip_check_length(mblk_t *, uchar_t *, ssize_t, uint_t, uint_t,
3223 3224 ip_recv_attr_t *);
3224 3225 extern mblk_t *ip_check_optlen(mblk_t *, ipha_t *, uint_t, uint_t,
3225 3226 ip_recv_attr_t *);
3226 3227 extern mblk_t *ip_fix_dbref(mblk_t *, ip_recv_attr_t *);
3227 3228 extern uint_t ip_cksum(mblk_t *, int, uint32_t);
3228 3229 extern int ip_close(queue_t *, int);
3229 3230 extern uint16_t ip_csum_hdr(ipha_t *);
3230 3231 extern void ip_forward_xmit_v4(nce_t *, ill_t *, mblk_t *, ipha_t *,
3231 3232 ip_recv_attr_t *, uint32_t, uint32_t);
3232 3233 extern boolean_t ip_forward_options(mblk_t *, ipha_t *, ill_t *,
3233 3234 ip_recv_attr_t *);
3234 3235 extern int ip_fragment_v4(mblk_t *, nce_t *, iaflags_t, uint_t, uint32_t,
3235 3236 uint32_t, zoneid_t, zoneid_t, pfirepostfrag_t postfragfn,
3236 3237 uintptr_t *cookie);
3237 3238 extern void ip_proto_not_sup(mblk_t *, ip_recv_attr_t *);
3238 3239 extern void ip_ire_g_fini(void);
3239 3240 extern void ip_ire_g_init(void);
3240 3241 extern void ip_ire_fini(ip_stack_t *);
3241 3242 extern void ip_ire_init(ip_stack_t *);
3242 3243 extern void ip_mdata_to_mhi(ill_t *, mblk_t *, struct mac_header_info_s *);
3243 3244 extern int ip_openv4(queue_t *q, dev_t *devp, int flag, int sflag,
3244 3245 cred_t *credp);
3245 3246 extern int ip_openv6(queue_t *q, dev_t *devp, int flag, int sflag,
3246 3247 cred_t *credp);
3247 3248 extern int ip_reassemble(mblk_t *, ipf_t *, uint_t, boolean_t, ill_t *,
3248 3249 size_t);
3249 3250 extern void ip_rput(queue_t *, mblk_t *);
3250 3251 extern void ip_input(ill_t *, ill_rx_ring_t *, mblk_t *,
3251 3252 struct mac_header_info_s *);
3252 3253 extern void ip_input_v6(ill_t *, ill_rx_ring_t *, mblk_t *,
3253 3254 struct mac_header_info_s *);
3254 3255 extern mblk_t *ip_input_common_v4(ill_t *, ill_rx_ring_t *, mblk_t *,
3255 3256 struct mac_header_info_s *, squeue_t *, mblk_t **, uint_t *);
3256 3257 extern mblk_t *ip_input_common_v6(ill_t *, ill_rx_ring_t *, mblk_t *,
3257 3258 struct mac_header_info_s *, squeue_t *, mblk_t **, uint_t *);
3258 3259 extern void ill_input_full_v4(mblk_t *, void *, void *,
3259 3260 ip_recv_attr_t *, rtc_t *);
3260 3261 extern void ill_input_short_v4(mblk_t *, void *, void *,
3261 3262 ip_recv_attr_t *, rtc_t *);
3262 3263 extern void ill_input_full_v6(mblk_t *, void *, void *,
3263 3264 ip_recv_attr_t *, rtc_t *);
3264 3265 extern void ill_input_short_v6(mblk_t *, void *, void *,
3265 3266 ip_recv_attr_t *, rtc_t *);
3266 3267 extern ipaddr_t ip_input_options(ipha_t *, ipaddr_t, mblk_t *,
3267 3268 ip_recv_attr_t *, int *);
3268 3269 extern boolean_t ip_input_local_options(mblk_t *, ipha_t *, ip_recv_attr_t *);
3269 3270 extern mblk_t *ip_input_fragment(mblk_t *, ipha_t *, ip_recv_attr_t *);
3270 3271 extern mblk_t *ip_input_fragment_v6(mblk_t *, ip6_t *, ip6_frag_t *, uint_t,
3271 3272 ip_recv_attr_t *);
3272 3273 extern void ip_input_post_ipsec(mblk_t *, ip_recv_attr_t *);
3273 3274 extern void ip_fanout_v4(mblk_t *, ipha_t *, ip_recv_attr_t *);
3274 3275 extern void ip_fanout_v6(mblk_t *, ip6_t *, ip_recv_attr_t *);
3275 3276 extern void ip_fanout_proto_conn(conn_t *, mblk_t *, ipha_t *, ip6_t *,
3276 3277 ip_recv_attr_t *);
3277 3278 extern void ip_fanout_proto_v4(mblk_t *, ipha_t *, ip_recv_attr_t *);
3278 3279 extern void ip_fanout_send_icmp_v4(mblk_t *, uint_t, uint_t,
3279 3280 ip_recv_attr_t *);
3280 3281 extern void ip_fanout_udp_conn(conn_t *, mblk_t *, ipha_t *, ip6_t *,
3281 3282 ip_recv_attr_t *);
3282 3283 extern void ip_fanout_udp_multi_v4(mblk_t *, ipha_t *, uint16_t, uint16_t,
3283 3284 ip_recv_attr_t *);
3284 3285 extern mblk_t *zero_spi_check(mblk_t *, ip_recv_attr_t *);
3285 3286 extern void ip_build_hdrs_v4(uchar_t *, uint_t, const ip_pkt_t *, uint8_t);
3286 3287 extern int ip_find_hdr_v4(ipha_t *, ip_pkt_t *, boolean_t);
3287 3288 extern int ip_total_hdrs_len_v4(const ip_pkt_t *);
3288 3289
3289 3290 extern mblk_t *ip_accept_tcp(ill_t *, ill_rx_ring_t *, squeue_t *,
3290 3291 mblk_t *, mblk_t **, uint_t *cnt);
3291 3292 extern void ip_rput_dlpi(ill_t *, mblk_t *);
3292 3293 extern void ip_rput_notdata(ill_t *, mblk_t *);
3293 3294
3294 3295 extern void ip_mib2_add_ip_stats(mib2_ipIfStatsEntry_t *,
3295 3296 mib2_ipIfStatsEntry_t *);
3296 3297 extern void ip_mib2_add_icmp6_stats(mib2_ipv6IfIcmpEntry_t *,
3297 3298 mib2_ipv6IfIcmpEntry_t *);
3298 3299 extern void ip_rput_other(ipsq_t *, queue_t *, mblk_t *, void *);
3299 3300 extern ire_t *ip_check_multihome(void *, ire_t *, ill_t *);
3300 3301 extern void ip_send_potential_redirect_v4(mblk_t *, ipha_t *, ire_t *,
3301 3302 ip_recv_attr_t *);
3302 3303 extern int ip_set_destination_v4(ipaddr_t *, ipaddr_t, ipaddr_t,
3303 3304 ip_xmit_attr_t *, iulp_t *, uint32_t, uint_t);
3304 3305 extern int ip_set_destination_v6(in6_addr_t *, const in6_addr_t *,
3305 3306 const in6_addr_t *, ip_xmit_attr_t *, iulp_t *, uint32_t, uint_t);
3306 3307
3307 3308 extern int ip_output_simple(mblk_t *, ip_xmit_attr_t *);
3308 3309 extern int ip_output_simple_v4(mblk_t *, ip_xmit_attr_t *);
3309 3310 extern int ip_output_simple_v6(mblk_t *, ip_xmit_attr_t *);
3310 3311 extern int ip_output_options(mblk_t *, ipha_t *, ip_xmit_attr_t *,
3311 3312 ill_t *);
3312 3313 extern void ip_output_local_options(ipha_t *, ip_stack_t *);
3313 3314
3314 3315 extern ip_xmit_attr_t *conn_get_ixa(conn_t *, boolean_t);
3315 3316 extern ip_xmit_attr_t *conn_get_ixa_tryhard(conn_t *, boolean_t);
3316 3317 extern ip_xmit_attr_t *conn_replace_ixa(conn_t *, ip_xmit_attr_t *);
3317 3318 extern ip_xmit_attr_t *conn_get_ixa_exclusive(conn_t *);
3318 3319 extern ip_xmit_attr_t *ip_xmit_attr_duplicate(ip_xmit_attr_t *);
3319 3320 extern void ip_xmit_attr_replace_tsl(ip_xmit_attr_t *, ts_label_t *);
3320 3321 extern void ip_xmit_attr_restore_tsl(ip_xmit_attr_t *, cred_t *);
3321 3322 boolean_t ip_recv_attr_replace_label(ip_recv_attr_t *, ts_label_t *);
3322 3323 extern void ixa_inactive(ip_xmit_attr_t *);
3323 3324 extern void ixa_refrele(ip_xmit_attr_t *);
3324 3325 extern boolean_t ixa_check_drain_insert(conn_t *, ip_xmit_attr_t *);
3325 3326 extern void ixa_cleanup(ip_xmit_attr_t *);
3326 3327 extern void ira_cleanup(ip_recv_attr_t *, boolean_t);
3327 3328 extern void ixa_safe_copy(ip_xmit_attr_t *, ip_xmit_attr_t *);
3328 3329
3329 3330 extern int conn_ip_output(mblk_t *, ip_xmit_attr_t *);
3330 3331 extern boolean_t ip_output_verify_local(ip_xmit_attr_t *);
3331 3332 extern mblk_t *ip_output_process_local(mblk_t *, ip_xmit_attr_t *, boolean_t,
3332 3333 boolean_t, conn_t *);
3333 3334
3334 3335 extern int conn_opt_get(conn_opt_arg_t *, t_scalar_t, t_scalar_t,
3335 3336 uchar_t *);
3336 3337 extern int conn_opt_set(conn_opt_arg_t *, t_scalar_t, t_scalar_t, uint_t,
3337 3338 uchar_t *, boolean_t, cred_t *);
3338 3339 extern boolean_t conn_same_as_last_v4(conn_t *, sin_t *);
3339 3340 extern boolean_t conn_same_as_last_v6(conn_t *, sin6_t *);
3340 3341 extern int conn_update_label(const conn_t *, const ip_xmit_attr_t *,
3341 3342 const in6_addr_t *, ip_pkt_t *);
3342 3343
3343 3344 extern int ip_opt_set_multicast_group(conn_t *, t_scalar_t,
3344 3345 uchar_t *, boolean_t, boolean_t);
3345 3346 extern int ip_opt_set_multicast_sources(conn_t *, t_scalar_t,
3346 3347 uchar_t *, boolean_t, boolean_t);
3347 3348 extern int conn_getsockname(conn_t *, struct sockaddr *, uint_t *);
3348 3349 extern int conn_getpeername(conn_t *, struct sockaddr *, uint_t *);
3349 3350
3350 3351 extern int conn_build_hdr_template(conn_t *, uint_t, uint_t,
3351 3352 const in6_addr_t *, const in6_addr_t *, uint32_t);
3352 3353 extern mblk_t *conn_prepend_hdr(ip_xmit_attr_t *, const ip_pkt_t *,
3353 3354 const in6_addr_t *, const in6_addr_t *, uint8_t, uint32_t, uint_t,
3354 3355 mblk_t *, uint_t, uint_t, uint32_t *, int *);
3355 3356 extern void ip_attr_newdst(ip_xmit_attr_t *);
3356 3357 extern void ip_attr_nexthop(const ip_pkt_t *, const ip_xmit_attr_t *,
3357 3358 const in6_addr_t *, in6_addr_t *);
3358 3359 extern int conn_connect(conn_t *, iulp_t *, uint32_t);
3359 3360 extern int ip_attr_connect(const conn_t *, ip_xmit_attr_t *,
3360 3361 const in6_addr_t *, const in6_addr_t *, const in6_addr_t *, in_port_t,
3361 3362 in6_addr_t *, iulp_t *, uint32_t);
3362 3363 extern int conn_inherit_parent(conn_t *, conn_t *);
3363 3364
3364 3365 extern void conn_ixa_cleanup(conn_t *connp, void *arg);
3365 3366
3366 3367 extern boolean_t conn_wantpacket(conn_t *, ip_recv_attr_t *, ipha_t *);
3367 3368 extern uint_t ip_type_v4(ipaddr_t, ip_stack_t *);
3368 3369 extern uint_t ip_type_v6(const in6_addr_t *, ip_stack_t *);
3369 3370
3370 3371 extern void ip_wput_nondata(queue_t *, mblk_t *);
3371 3372 extern void ip_wsrv(queue_t *);
3372 3373 extern char *ip_nv_lookup(nv_t *, int);
3373 3374 extern boolean_t ip_local_addr_ok_v6(const in6_addr_t *, const in6_addr_t *);
3374 3375 extern boolean_t ip_remote_addr_ok_v6(const in6_addr_t *, const in6_addr_t *);
3375 3376 extern ipaddr_t ip_massage_options(ipha_t *, netstack_t *);
3376 3377 extern ipaddr_t ip_net_mask(ipaddr_t);
3377 3378 extern void arp_bringup_done(ill_t *, int);
3378 3379 extern void arp_replumb_done(ill_t *, int);
3379 3380
3380 3381 extern struct qinit iprinitv6;
3381 3382
3382 3383 extern void ipmp_init(ip_stack_t *);
3383 3384 extern void ipmp_destroy(ip_stack_t *);
3384 3385 extern ipmp_grp_t *ipmp_grp_create(const char *, phyint_t *);
3385 3386 extern void ipmp_grp_destroy(ipmp_grp_t *);
3386 3387 extern void ipmp_grp_info(const ipmp_grp_t *, lifgroupinfo_t *);
3387 3388 extern int ipmp_grp_rename(ipmp_grp_t *, const char *);
3388 3389 extern ipmp_grp_t *ipmp_grp_lookup(const char *, ip_stack_t *);
3389 3390 extern int ipmp_grp_vet_phyint(ipmp_grp_t *, phyint_t *);
3390 3391 extern ipmp_illgrp_t *ipmp_illgrp_create(ill_t *);
3391 3392 extern void ipmp_illgrp_destroy(ipmp_illgrp_t *);
3392 3393 extern ill_t *ipmp_illgrp_add_ipif(ipmp_illgrp_t *, ipif_t *);
3393 3394 extern void ipmp_illgrp_del_ipif(ipmp_illgrp_t *, ipif_t *);
3394 3395 extern ill_t *ipmp_illgrp_next_ill(ipmp_illgrp_t *);
3395 3396 extern ill_t *ipmp_illgrp_hold_next_ill(ipmp_illgrp_t *);
3396 3397 extern ill_t *ipmp_illgrp_hold_cast_ill(ipmp_illgrp_t *);
3397 3398 extern ill_t *ipmp_illgrp_ipmp_ill(ipmp_illgrp_t *);
3398 3399 extern void ipmp_illgrp_refresh_mtu(ipmp_illgrp_t *);
3399 3400 extern ipmp_arpent_t *ipmp_illgrp_create_arpent(ipmp_illgrp_t *,
3400 3401 boolean_t, ipaddr_t, uchar_t *, size_t, uint16_t);
3401 3402 extern void ipmp_illgrp_destroy_arpent(ipmp_illgrp_t *, ipmp_arpent_t *);
3402 3403 extern ipmp_arpent_t *ipmp_illgrp_lookup_arpent(ipmp_illgrp_t *, ipaddr_t *);
3403 3404 extern void ipmp_illgrp_refresh_arpent(ipmp_illgrp_t *);
3404 3405 extern void ipmp_illgrp_mark_arpent(ipmp_illgrp_t *, ipmp_arpent_t *);
3405 3406 extern ill_t *ipmp_illgrp_find_ill(ipmp_illgrp_t *, uchar_t *, uint_t);
3406 3407 extern void ipmp_illgrp_link_grp(ipmp_illgrp_t *, ipmp_grp_t *);
3407 3408 extern int ipmp_illgrp_unlink_grp(ipmp_illgrp_t *);
3408 3409 extern uint_t ipmp_ill_get_ipmp_ifindex(const ill_t *);
3409 3410 extern void ipmp_ill_join_illgrp(ill_t *, ipmp_illgrp_t *);
3410 3411 extern void ipmp_ill_leave_illgrp(ill_t *);
3411 3412 extern ill_t *ipmp_ill_hold_ipmp_ill(ill_t *);
3412 3413 extern ill_t *ipmp_ill_hold_xmit_ill(ill_t *, boolean_t);
3413 3414 extern boolean_t ipmp_ill_is_active(ill_t *);
3414 3415 extern void ipmp_ill_refresh_active(ill_t *);
3415 3416 extern void ipmp_phyint_join_grp(phyint_t *, ipmp_grp_t *);
3416 3417 extern void ipmp_phyint_leave_grp(phyint_t *);
3417 3418 extern void ipmp_phyint_refresh_active(phyint_t *);
3418 3419 extern ill_t *ipmp_ipif_bound_ill(const ipif_t *);
3419 3420 extern ill_t *ipmp_ipif_hold_bound_ill(const ipif_t *);
3420 3421 extern boolean_t ipmp_ipif_is_dataaddr(const ipif_t *);
3421 3422 extern boolean_t ipmp_ipif_is_stubaddr(const ipif_t *);
3422 3423 extern boolean_t ipmp_packet_is_probe(mblk_t *, ill_t *);
3423 3424 extern void ipmp_ncec_delete_nce(ncec_t *);
3424 3425 extern void ipmp_ncec_refresh_nce(ncec_t *);
3425 3426
3426 3427 extern void conn_drain_insert(conn_t *, idl_tx_list_t *);
3427 3428 extern void conn_setqfull(conn_t *, boolean_t *);
3428 3429 extern void conn_clrqfull(conn_t *, boolean_t *);
3429 3430 extern int conn_ipsec_length(conn_t *);
3430 3431 extern ipaddr_t ip_get_dst(ipha_t *);
3431 3432 extern uint_t ip_get_pmtu(ip_xmit_attr_t *);
3432 3433 extern uint_t ip_get_base_mtu(ill_t *, ire_t *);
3433 3434 extern mblk_t *ip_output_attach_policy(mblk_t *, ipha_t *, ip6_t *,
3434 3435 const conn_t *, ip_xmit_attr_t *);
3435 3436 extern int ipsec_out_extra_length(ip_xmit_attr_t *);
3436 3437 extern int ipsec_out_process(mblk_t *, ip_xmit_attr_t *);
3437 3438 extern int ip_output_post_ipsec(mblk_t *, ip_xmit_attr_t *);
3438 3439 extern void ipsec_out_to_in(ip_xmit_attr_t *, ill_t *ill,
3439 3440 ip_recv_attr_t *);
3440 3441
3441 3442 extern void ire_cleanup(ire_t *);
3442 3443 extern void ire_inactive(ire_t *);
3443 3444 extern boolean_t irb_inactive(irb_t *);
3444 3445 extern ire_t *ire_unlink(irb_t *);
3445 3446
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3446 3447 #ifdef DEBUG
3447 3448 extern boolean_t th_trace_ref(const void *, ip_stack_t *);
3448 3449 extern void th_trace_unref(const void *);
3449 3450 extern void th_trace_cleanup(const void *, boolean_t);
3450 3451 extern void ire_trace_ref(ire_t *);
3451 3452 extern void ire_untrace_ref(ire_t *);
3452 3453 #endif
3453 3454
3454 3455 extern int ip_srcid_insert(const in6_addr_t *, zoneid_t, ip_stack_t *);
3455 3456 extern int ip_srcid_remove(const in6_addr_t *, zoneid_t, ip_stack_t *);
3456 -extern void ip_srcid_find_id(uint_t, in6_addr_t *, zoneid_t, netstack_t *);
3457 +extern boolean_t ip_srcid_find_id(uint_t, in6_addr_t *, zoneid_t, boolean_t,
3458 + netstack_t *);
3457 3459 extern uint_t ip_srcid_find_addr(const in6_addr_t *, zoneid_t, netstack_t *);
3458 3460
3459 3461 extern uint8_t ipoptp_next(ipoptp_t *);
3460 3462 extern uint8_t ipoptp_first(ipoptp_t *, ipha_t *);
3461 3463 extern int ip_opt_get_user(conn_t *, uchar_t *);
3462 3464 extern int ipsec_req_from_conn(conn_t *, ipsec_req_t *, int);
3463 3465 extern int ip_snmp_get(queue_t *q, mblk_t *mctl, int level, boolean_t);
3464 3466 extern int ip_snmp_set(queue_t *q, int, int, uchar_t *, int);
3465 3467 extern void ip_process_ioctl(ipsq_t *, queue_t *, mblk_t *, void *);
3466 3468 extern void ip_quiesce_conn(conn_t *);
3467 3469 extern void ip_reprocess_ioctl(ipsq_t *, queue_t *, mblk_t *, void *);
3468 3470 extern void ip_ioctl_finish(queue_t *, mblk_t *, int, int, ipsq_t *);
3469 3471
3470 3472 extern boolean_t ip_cmpbuf(const void *, uint_t, boolean_t, const void *,
3471 3473 uint_t);
3472 3474 extern boolean_t ip_allocbuf(void **, uint_t *, boolean_t, const void *,
3473 3475 uint_t);
3474 3476 extern void ip_savebuf(void **, uint_t *, boolean_t, const void *, uint_t);
3475 3477
3476 3478 extern boolean_t ipsq_pending_mp_cleanup(ill_t *, conn_t *);
3477 3479 extern void conn_ioctl_cleanup(conn_t *);
3478 3480
3479 3481 extern void ip_unbind(conn_t *);
3480 3482
3481 3483 extern void tnet_init(void);
3482 3484 extern void tnet_fini(void);
3483 3485
3484 3486 /*
3485 3487 * Hook functions to enable cluster networking
3486 3488 * On non-clustered systems these vectors must always be NULL.
3487 3489 */
3488 3490 extern int (*cl_inet_isclusterwide)(netstackid_t stack_id, uint8_t protocol,
3489 3491 sa_family_t addr_family, uint8_t *laddrp, void *args);
3490 3492 extern uint32_t (*cl_inet_ipident)(netstackid_t stack_id, uint8_t protocol,
3491 3493 sa_family_t addr_family, uint8_t *laddrp, uint8_t *faddrp,
3492 3494 void *args);
3493 3495 extern int (*cl_inet_connect2)(netstackid_t stack_id, uint8_t protocol,
3494 3496 boolean_t is_outgoing, sa_family_t addr_family, uint8_t *laddrp,
3495 3497 in_port_t lport, uint8_t *faddrp, in_port_t fport, void *args);
3496 3498 extern void (*cl_inet_getspi)(netstackid_t, uint8_t, uint8_t *, size_t,
3497 3499 void *);
3498 3500 extern void (*cl_inet_getspi)(netstackid_t stack_id, uint8_t protocol,
3499 3501 uint8_t *ptr, size_t len, void *args);
3500 3502 extern int (*cl_inet_checkspi)(netstackid_t stack_id, uint8_t protocol,
3501 3503 uint32_t spi, void *args);
3502 3504 extern void (*cl_inet_deletespi)(netstackid_t stack_id, uint8_t protocol,
3503 3505 uint32_t spi, void *args);
3504 3506 extern void (*cl_inet_idlesa)(netstackid_t, uint8_t, uint32_t,
3505 3507 sa_family_t, in6_addr_t, in6_addr_t, void *);
3506 3508
3507 3509
3508 3510 /* Hooks for CGTP (multirt routes) filtering module */
3509 3511 #define CGTP_FILTER_REV_1 1
3510 3512 #define CGTP_FILTER_REV_2 2
3511 3513 #define CGTP_FILTER_REV_3 3
3512 3514 #define CGTP_FILTER_REV CGTP_FILTER_REV_3
3513 3515
3514 3516 /* cfo_filter and cfo_filter_v6 hooks return values */
3515 3517 #define CGTP_IP_PKT_NOT_CGTP 0
3516 3518 #define CGTP_IP_PKT_PREMIUM 1
3517 3519 #define CGTP_IP_PKT_DUPLICATE 2
3518 3520
3519 3521 /* Version 3 of the filter interface */
3520 3522 typedef struct cgtp_filter_ops {
3521 3523 int cfo_filter_rev; /* CGTP_FILTER_REV_3 */
3522 3524 int (*cfo_change_state)(netstackid_t, int);
3523 3525 int (*cfo_add_dest_v4)(netstackid_t, ipaddr_t, ipaddr_t,
3524 3526 ipaddr_t, ipaddr_t);
3525 3527 int (*cfo_del_dest_v4)(netstackid_t, ipaddr_t, ipaddr_t);
3526 3528 int (*cfo_add_dest_v6)(netstackid_t, in6_addr_t *, in6_addr_t *,
3527 3529 in6_addr_t *, in6_addr_t *);
3528 3530 int (*cfo_del_dest_v6)(netstackid_t, in6_addr_t *, in6_addr_t *);
3529 3531 int (*cfo_filter)(netstackid_t, uint_t, mblk_t *);
3530 3532 int (*cfo_filter_v6)(netstackid_t, uint_t, ip6_t *,
3531 3533 ip6_frag_t *);
3532 3534 } cgtp_filter_ops_t;
3533 3535
3534 3536 #define CGTP_MCAST_SUCCESS 1
3535 3537
3536 3538 /*
3537 3539 * The separate CGTP module needs this global symbol so that it
3538 3540 * can check the version and determine whether to use the old or the new
3539 3541 * version of the filtering interface.
3540 3542 */
3541 3543 extern int ip_cgtp_filter_rev;
3542 3544
3543 3545 extern int ip_cgtp_filter_supported(void);
3544 3546 extern int ip_cgtp_filter_register(netstackid_t, cgtp_filter_ops_t *);
3545 3547 extern int ip_cgtp_filter_unregister(netstackid_t);
3546 3548 extern int ip_cgtp_filter_is_registered(netstackid_t);
3547 3549
3548 3550 /*
3549 3551 * rr_ring_state cycles in the order shown below from RR_FREE through
3550 3552 * RR_FREE_IN_PROG and back to RR_FREE.
3551 3553 */
3552 3554 typedef enum {
3553 3555 RR_FREE, /* Free slot */
3554 3556 RR_SQUEUE_UNBOUND, /* Ring's squeue is unbound */
3555 3557 RR_SQUEUE_BIND_INPROG, /* Ring's squeue bind in progress */
3556 3558 RR_SQUEUE_BOUND, /* Ring's squeue bound to cpu */
3557 3559 RR_FREE_INPROG /* Ring is being freed */
3558 3560 } ip_ring_state_t;
3559 3561
3560 3562 #define ILL_MAX_RINGS 256 /* Max num of rx rings we can manage */
3561 3563 #define ILL_POLLING 0x01 /* Polling in use */
3562 3564
3563 3565 /*
3564 3566 * These functions pointer types are exported by the mac/dls layer.
3565 3567 * we need to duplicate the definitions here because we cannot
3566 3568 * include mac/dls header files here.
3567 3569 */
3568 3570 typedef boolean_t (*ip_mac_intr_disable_t)(void *);
3569 3571 typedef void (*ip_mac_intr_enable_t)(void *);
3570 3572 typedef ip_mac_tx_cookie_t (*ip_dld_tx_t)(void *, mblk_t *,
3571 3573 uint64_t, uint16_t);
3572 3574 typedef void (*ip_flow_enable_t)(void *, ip_mac_tx_cookie_t);
3573 3575 typedef void *(*ip_dld_callb_t)(void *,
3574 3576 ip_flow_enable_t, void *);
3575 3577 typedef boolean_t (*ip_dld_fctl_t)(void *, ip_mac_tx_cookie_t);
3576 3578 typedef int (*ip_capab_func_t)(void *, uint_t,
3577 3579 void *, uint_t);
3578 3580
3579 3581 /*
3580 3582 * POLLING README
3581 3583 * sq_get_pkts() is called to pick packets from softring in poll mode. It
3582 3584 * calls rr_rx to get the chain and process it with rr_ip_accept.
3583 3585 * rr_rx = mac_soft_ring_poll() to pick packets
3584 3586 * rr_ip_accept = ip_accept_tcp() to process packets
3585 3587 */
3586 3588
3587 3589 /*
3588 3590 * XXX: With protocol, service specific squeues, they will have
3589 3591 * specific acceptor functions.
3590 3592 */
3591 3593 typedef mblk_t *(*ip_mac_rx_t)(void *, size_t);
3592 3594 typedef mblk_t *(*ip_accept_t)(ill_t *, ill_rx_ring_t *,
3593 3595 squeue_t *, mblk_t *, mblk_t **, uint_t *);
3594 3596
3595 3597 /*
3596 3598 * rr_intr_enable, rr_intr_disable, rr_rx_handle, rr_rx:
3597 3599 * May be accessed while in the squeue AND after checking that SQS_POLL_CAPAB
3598 3600 * is set.
3599 3601 *
3600 3602 * rr_ring_state: Protected by ill_lock.
3601 3603 */
3602 3604 struct ill_rx_ring {
3603 3605 ip_mac_intr_disable_t rr_intr_disable; /* Interrupt disabling func */
3604 3606 ip_mac_intr_enable_t rr_intr_enable; /* Interrupt enabling func */
3605 3607 void *rr_intr_handle; /* Handle interrupt funcs */
3606 3608 ip_mac_rx_t rr_rx; /* Driver receive function */
3607 3609 ip_accept_t rr_ip_accept; /* IP accept function */
3608 3610 void *rr_rx_handle; /* Handle for Rx ring */
3609 3611 squeue_t *rr_sqp; /* Squeue the ring is bound to */
3610 3612 ill_t *rr_ill; /* back pointer to ill */
3611 3613 ip_ring_state_t rr_ring_state; /* State of this ring */
3612 3614 };
3613 3615
3614 3616 /*
3615 3617 * IP - DLD direct function call capability
3616 3618 * Suffixes, df - dld function, dh - dld handle,
3617 3619 * cf - client (IP) function, ch - client handle
3618 3620 */
3619 3621 typedef struct ill_dld_direct_s { /* DLD provided driver Tx */
3620 3622 ip_dld_tx_t idd_tx_df; /* str_mdata_fastpath_put */
3621 3623 void *idd_tx_dh; /* dld_str_t *dsp */
3622 3624 ip_dld_callb_t idd_tx_cb_df; /* mac_tx_srs_notify */
3623 3625 void *idd_tx_cb_dh; /* mac_client_handle_t *mch */
3624 3626 ip_dld_fctl_t idd_tx_fctl_df; /* mac_tx_is_flow_blocked */
3625 3627 void *idd_tx_fctl_dh; /* mac_client_handle */
3626 3628 } ill_dld_direct_t;
3627 3629
3628 3630 /* IP - DLD polling capability */
3629 3631 typedef struct ill_dld_poll_s {
3630 3632 ill_rx_ring_t idp_ring_tbl[ILL_MAX_RINGS];
3631 3633 } ill_dld_poll_t;
3632 3634
3633 3635 /* Describes ill->ill_dld_capab */
3634 3636 struct ill_dld_capab_s {
3635 3637 ip_capab_func_t idc_capab_df; /* dld_capab_func */
3636 3638 void *idc_capab_dh; /* dld_str_t *dsp */
3637 3639 ill_dld_direct_t idc_direct;
3638 3640 ill_dld_poll_t idc_poll;
3639 3641 };
3640 3642
3641 3643 /*
3642 3644 * IP squeues exports
3643 3645 */
3644 3646 extern boolean_t ip_squeue_fanout;
3645 3647
3646 3648 #define IP_SQUEUE_GET(hint) ip_squeue_random(hint)
3647 3649
3648 3650 extern void ip_squeue_init(void (*)(squeue_t *));
3649 3651 extern squeue_t *ip_squeue_random(uint_t);
3650 3652 extern squeue_t *ip_squeue_get(ill_rx_ring_t *);
3651 3653 extern squeue_t *ip_squeue_getfree(pri_t);
3652 3654 extern int ip_squeue_cpu_move(squeue_t *, processorid_t);
3653 3655 extern void *ip_squeue_add_ring(ill_t *, void *);
3654 3656 extern void ip_squeue_bind_ring(ill_t *, ill_rx_ring_t *, processorid_t);
3655 3657 extern void ip_squeue_clean_ring(ill_t *, ill_rx_ring_t *);
3656 3658 extern void ip_squeue_quiesce_ring(ill_t *, ill_rx_ring_t *);
3657 3659 extern void ip_squeue_restart_ring(ill_t *, ill_rx_ring_t *);
3658 3660 extern void ip_squeue_clean_all(ill_t *);
3659 3661 extern boolean_t ip_source_routed(ipha_t *, ip_stack_t *);
3660 3662
3661 3663 extern void tcp_wput(queue_t *, mblk_t *);
3662 3664
3663 3665 extern int ip_fill_mtuinfo(conn_t *, ip_xmit_attr_t *,
3664 3666 struct ip6_mtuinfo *);
3665 3667 extern hook_t *ipobs_register_hook(netstack_t *, pfv_t);
3666 3668 extern void ipobs_unregister_hook(netstack_t *, hook_t *);
3667 3669 extern void ipobs_hook(mblk_t *, int, zoneid_t, zoneid_t, const ill_t *,
3668 3670 ip_stack_t *);
3669 3671 typedef void (*ipsq_func_t)(ipsq_t *, queue_t *, mblk_t *, void *);
3670 3672
3671 3673 extern void dce_g_init(void);
3672 3674 extern void dce_g_destroy(void);
3673 3675 extern void dce_stack_init(ip_stack_t *);
3674 3676 extern void dce_stack_destroy(ip_stack_t *);
3675 3677 extern void dce_cleanup(uint_t, ip_stack_t *);
3676 3678 extern dce_t *dce_get_default(ip_stack_t *);
3677 3679 extern dce_t *dce_lookup_pkt(mblk_t *, ip_xmit_attr_t *, uint_t *);
3678 3680 extern dce_t *dce_lookup_v4(ipaddr_t, ip_stack_t *, uint_t *);
3679 3681 extern dce_t *dce_lookup_v6(const in6_addr_t *, uint_t, ip_stack_t *,
3680 3682 uint_t *);
3681 3683 extern dce_t *dce_lookup_and_add_v4(ipaddr_t, ip_stack_t *);
3682 3684 extern dce_t *dce_lookup_and_add_v6(const in6_addr_t *, uint_t,
3683 3685 ip_stack_t *);
3684 3686 extern int dce_update_uinfo_v4(ipaddr_t, iulp_t *, ip_stack_t *);
3685 3687 extern int dce_update_uinfo_v6(const in6_addr_t *, uint_t, iulp_t *,
3686 3688 ip_stack_t *);
3687 3689 extern int dce_update_uinfo(const in6_addr_t *, uint_t, iulp_t *,
3688 3690 ip_stack_t *);
3689 3691 extern void dce_increment_generation(dce_t *);
3690 3692 extern void dce_increment_all_generations(boolean_t, ip_stack_t *);
3691 3693 extern void dce_refrele(dce_t *);
3692 3694 extern void dce_refhold(dce_t *);
3693 3695 extern void dce_refrele_notr(dce_t *);
3694 3696 extern void dce_refhold_notr(dce_t *);
3695 3697 mblk_t *ip_snmp_get_mib2_ip_dce(queue_t *, mblk_t *, ip_stack_t *ipst);
3696 3698
3697 3699 extern ip_laddr_t ip_laddr_verify_v4(ipaddr_t, zoneid_t,
3698 3700 ip_stack_t *, boolean_t);
3699 3701 extern ip_laddr_t ip_laddr_verify_v6(const in6_addr_t *, zoneid_t,
3700 3702 ip_stack_t *, boolean_t, uint_t);
3701 3703 extern int ip_laddr_fanout_insert(conn_t *);
3702 3704
3703 3705 extern boolean_t ip_verify_src(mblk_t *, ip_xmit_attr_t *, uint_t *);
3704 3706 extern int ip_verify_ire(mblk_t *, ip_xmit_attr_t *);
3705 3707
3706 3708 extern mblk_t *ip_xmit_attr_to_mblk(ip_xmit_attr_t *);
3707 3709 extern boolean_t ip_xmit_attr_from_mblk(mblk_t *, ip_xmit_attr_t *);
3708 3710 extern mblk_t *ip_xmit_attr_free_mblk(mblk_t *);
3709 3711 extern mblk_t *ip_recv_attr_to_mblk(ip_recv_attr_t *);
3710 3712 extern boolean_t ip_recv_attr_from_mblk(mblk_t *, ip_recv_attr_t *);
3711 3713 extern mblk_t *ip_recv_attr_free_mblk(mblk_t *);
3712 3714 extern boolean_t ip_recv_attr_is_mblk(mblk_t *);
3713 3715
3714 3716 #ifdef __PRAGMA_REDEFINE_EXTNAME
3715 3717 #pragma redefine_extname inet_pton _inet_pton
3716 3718 #else /* __PRAGMA_REDEFINE_EXTNAME */
3717 3719 #define inet_pton _inet_pton
3718 3720 #endif /* __PRAGMA_REDEFINE_EXTNAME */
3719 3721
3720 3722 extern char *inet_ntop(int, const void *, char *, int);
3721 3723 extern int inet_pton(int, char *, void *);
3722 3724
3723 3725 /*
3724 3726 * Squeue tags. Tags only need to be unique when the callback function is the
3725 3727 * same to distinguish between different calls, but we use unique tags for
3726 3728 * convenience anyway.
3727 3729 */
3728 3730 #define SQTAG_IP_INPUT 1
3729 3731 #define SQTAG_TCP_INPUT_ICMP_ERR 2
3730 3732 #define SQTAG_TCP6_INPUT_ICMP_ERR 3
3731 3733 #define SQTAG_IP_TCP_INPUT 4
3732 3734 #define SQTAG_IP6_TCP_INPUT 5
3733 3735 #define SQTAG_IP_TCP_CLOSE 6
3734 3736 #define SQTAG_TCP_OUTPUT 7
3735 3737 #define SQTAG_TCP_TIMER 8
3736 3738 #define SQTAG_TCP_TIMEWAIT 9
3737 3739 #define SQTAG_TCP_ACCEPT_FINISH 10
3738 3740 #define SQTAG_TCP_ACCEPT_FINISH_Q0 11
3739 3741 #define SQTAG_TCP_ACCEPT_PENDING 12
3740 3742 #define SQTAG_TCP_LISTEN_DISCON 13
3741 3743 #define SQTAG_TCP_CONN_REQ_1 14
3742 3744 #define SQTAG_TCP_EAGER_BLOWOFF 15
3743 3745 #define SQTAG_TCP_EAGER_CLEANUP 16
3744 3746 #define SQTAG_TCP_EAGER_CLEANUP_Q0 17
3745 3747 #define SQTAG_TCP_CONN_IND 18
3746 3748 #define SQTAG_TCP_RSRV 19
3747 3749 #define SQTAG_TCP_ABORT_BUCKET 20
3748 3750 #define SQTAG_TCP_REINPUT 21
3749 3751 #define SQTAG_TCP_REINPUT_EAGER 22
3750 3752 #define SQTAG_TCP_INPUT_MCTL 23
3751 3753 #define SQTAG_TCP_RPUTOTHER 24
3752 3754 #define SQTAG_IP_PROTO_AGAIN 25
3753 3755 #define SQTAG_IP_FANOUT_TCP 26
3754 3756 #define SQTAG_IPSQ_CLEAN_RING 27
3755 3757 #define SQTAG_TCP_WPUT_OTHER 28
3756 3758 #define SQTAG_TCP_CONN_REQ_UNBOUND 29
3757 3759 #define SQTAG_TCP_SEND_PENDING 30
3758 3760 #define SQTAG_BIND_RETRY 31
3759 3761 #define SQTAG_UDP_FANOUT 32
3760 3762 #define SQTAG_UDP_INPUT 33
3761 3763 #define SQTAG_UDP_WPUT 34
3762 3764 #define SQTAG_UDP_OUTPUT 35
3763 3765 #define SQTAG_TCP_KSSL_INPUT 36
3764 3766 #define SQTAG_TCP_DROP_Q0 37
3765 3767 #define SQTAG_TCP_CONN_REQ_2 38
3766 3768 #define SQTAG_IP_INPUT_RX_RING 39
3767 3769 #define SQTAG_SQUEUE_CHANGE 40
3768 3770 #define SQTAG_CONNECT_FINISH 41
3769 3771 #define SQTAG_SYNCHRONOUS_OP 42
3770 3772 #define SQTAG_TCP_SHUTDOWN_OUTPUT 43
3771 3773 #define SQTAG_TCP_IXA_CLEANUP 44
3772 3774 #define SQTAG_TCP_SEND_SYNACK 45
3773 3775
3774 3776 extern sin_t sin_null; /* Zero address for quick clears */
3775 3777 extern sin6_t sin6_null; /* Zero address for quick clears */
3776 3778
3777 3779 #endif /* _KERNEL */
3778 3780
3779 3781 #ifdef __cplusplus
3780 3782 }
3781 3783 #endif
3782 3784
3783 3785 #endif /* _INET_IP_H */
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