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