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 2017 Nexenta Systems, Inc. 26 * Copyright 2017 OmniTI Computer Consulting, Inc. All rights reserved. 27 * Copyright 2019, Joyent, Inc. 28 * Copyright 2024 Oxide Computer Company 29 */ 30 31 #ifndef _INET_IP_H 32 #define _INET_IP_H 33 34 #ifdef __cplusplus 35 extern "C" { 36 #endif 37 38 #include <sys/isa_defs.h> 39 #include <sys/types.h> 40 #include <inet/mib2.h> 41 #include <inet/nd.h> 42 #include <sys/atomic.h> 43 #include <net/if_dl.h> 44 #include <net/if.h> 45 #include <netinet/ip.h> 46 #include <netinet/igmp.h> 47 #include <sys/neti.h> 48 #include <sys/hook.h> 49 #include <sys/hook_event.h> 50 #include <sys/hook_impl.h> 51 #include <inet/ip_stack.h> 52 53 #ifdef _KERNEL 54 #include <netinet/ip6.h> 55 #include <sys/avl.h> 56 #include <sys/list.h> 57 #include <sys/vmem.h> 58 #include <sys/squeue.h> 59 #include <net/route.h> 60 #include <sys/systm.h> 61 #include <net/radix.h> 62 #include <sys/modhash.h> 63 64 #ifdef DEBUG 65 #define CONN_DEBUG 66 #endif 67 68 #define IP_DEBUG 69 /* 70 * The mt-streams(9F) flags for the IP module; put here so that other 71 * "drivers" that are actually IP (e.g., ICMP, UDP) can use the same set 72 * of flags. 73 */ 74 #define IP_DEVMTFLAGS D_MP 75 #endif /* _KERNEL */ 76 77 #define IP_MOD_NAME "ip" 78 #define IP_DEV_NAME "/dev/ip" 79 #define IP6_DEV_NAME "/dev/ip6" 80 81 #define UDP_MOD_NAME "udp" 82 #define UDP_DEV_NAME "/dev/udp" 83 #define UDP6_DEV_NAME "/dev/udp6" 84 85 #define TCP_MOD_NAME "tcp" 86 #define TCP_DEV_NAME "/dev/tcp" 87 #define TCP6_DEV_NAME "/dev/tcp6" 88 89 #define SCTP_MOD_NAME "sctp" 90 91 #ifndef _IPADDR_T 92 #define _IPADDR_T 93 typedef uint32_t ipaddr_t; 94 #endif 95 96 /* Number of bits in an address */ 97 #define IP_ABITS 32 98 #define IPV4_ABITS IP_ABITS 99 #define IPV6_ABITS 128 100 #define IP_MAX_HW_LEN 40 101 102 #define IP_HOST_MASK (ipaddr_t)0xffffffffU 103 104 #define IP_CSUM(mp, off, sum) (~ip_cksum(mp, off, sum) & 0xFFFF) 105 #define IP_CSUM_PARTIAL(mp, off, sum) ip_cksum(mp, off, sum) 106 #define IP_BCSUM_PARTIAL(bp, len, sum) bcksum(bp, len, sum) 107 108 #define ILL_FRAG_HASH_TBL_COUNT ((unsigned int)64) 109 #define ILL_FRAG_HASH_TBL_SIZE (ILL_FRAG_HASH_TBL_COUNT * sizeof (ipfb_t)) 110 111 #define IPV4_ADDR_LEN 4 112 #define IP_ADDR_LEN IPV4_ADDR_LEN 113 #define IP_ARP_PROTO_TYPE 0x0800 114 115 #define IPV4_VERSION 4 116 #define IP_VERSION IPV4_VERSION 117 #define IP_SIMPLE_HDR_LENGTH_IN_WORDS 5 118 #define IP_SIMPLE_HDR_LENGTH 20 119 #define IP_MAX_HDR_LENGTH 60 120 121 #define IP_MAX_OPT_LENGTH (IP_MAX_HDR_LENGTH-IP_SIMPLE_HDR_LENGTH) 122 123 #define IP_MIN_MTU (IP_MAX_HDR_LENGTH + 8) /* 68 bytes */ 124 125 /* 126 * XXX IP_MAXPACKET is defined in <netinet/ip.h> as well. At some point the 127 * 2 files should be cleaned up to remove all redundant definitions. 128 */ 129 #define IP_MAXPACKET 65535 130 #define IP_SIMPLE_HDR_VERSION \ 131 ((IP_VERSION << 4) | IP_SIMPLE_HDR_LENGTH_IN_WORDS) 132 133 #define UDPH_SIZE 8 134 135 /* 136 * Constants and type definitions to support IP IOCTL commands 137 */ 138 #define IP_IOCTL (('i'<<8)|'p') 139 #define IP_IOC_IRE_DELETE 4 140 #define IP_IOC_IRE_DELETE_NO_REPLY 5 141 #define IP_IOC_RTS_REQUEST 7 142 143 /* Common definitions used by IP IOCTL data structures */ 144 typedef struct ipllcmd_s { 145 uint_t ipllc_cmd; 146 uint_t ipllc_name_offset; 147 uint_t ipllc_name_length; 148 } ipllc_t; 149 150 /* IP IRE Delete Command Structure. */ 151 typedef struct ipid_s { 152 ipllc_t ipid_ipllc; 153 uint_t ipid_ire_type; 154 uint_t ipid_addr_offset; 155 uint_t ipid_addr_length; 156 uint_t ipid_mask_offset; 157 uint_t ipid_mask_length; 158 } ipid_t; 159 160 #define ipid_cmd ipid_ipllc.ipllc_cmd 161 162 #ifdef _KERNEL 163 /* 164 * Temporary state for ip options parser. 165 */ 166 typedef struct ipoptp_s 167 { 168 uint8_t *ipoptp_next; /* next option to look at */ 169 uint8_t *ipoptp_end; /* end of options */ 170 uint8_t *ipoptp_cur; /* start of current option */ 171 uint8_t ipoptp_len; /* length of current option */ 172 uint32_t ipoptp_flags; 173 } ipoptp_t; 174 175 /* 176 * Flag(s) for ipoptp_flags 177 */ 178 #define IPOPTP_ERROR 0x00000001 179 #endif /* _KERNEL */ 180 181 /* Controls forwarding of IP packets, set via ipadm(8)/ndd(8) */ 182 #define IP_FORWARD_NEVER 0 183 #define IP_FORWARD_ALWAYS 1 184 185 #define WE_ARE_FORWARDING(ipst) ((ipst)->ips_ip_forwarding == IP_FORWARD_ALWAYS) 186 187 #define IPH_HDR_LENGTH(ipha) \ 188 ((int)(((ipha_t *)ipha)->ipha_version_and_hdr_length & 0xF) << 2) 189 190 #define IPH_HDR_VERSION(ipha) \ 191 ((int)(((ipha_t *)ipha)->ipha_version_and_hdr_length) >> 4) 192 193 #ifdef _KERNEL 194 /* 195 * IP reassembly macros. We hide starting and ending offsets in b_next and 196 * b_prev of messages on the reassembly queue. The messages are chained using 197 * b_cont. These macros are used in ip_reassemble() so we don't have to see 198 * the ugly casts and assignments. 199 * Note that the offsets are <= 64k i.e. a uint_t is sufficient to represent 200 * them. 201 */ 202 #define IP_REASS_START(mp) ((uint_t)(uintptr_t)((mp)->b_next)) 203 #define IP_REASS_SET_START(mp, u) \ 204 ((mp)->b_next = (mblk_t *)(uintptr_t)(u)) 205 #define IP_REASS_END(mp) ((uint_t)(uintptr_t)((mp)->b_prev)) 206 #define IP_REASS_SET_END(mp, u) \ 207 ((mp)->b_prev = (mblk_t *)(uintptr_t)(u)) 208 209 #define IP_REASS_COMPLETE 0x1 210 #define IP_REASS_PARTIAL 0x2 211 #define IP_REASS_FAILED 0x4 212 213 /* 214 * Test to determine whether this is a module instance of IP or a 215 * driver instance of IP. 216 */ 217 #define CONN_Q(q) (WR(q)->q_next == NULL) 218 219 #define Q_TO_CONN(q) ((conn_t *)(q)->q_ptr) 220 #define Q_TO_TCP(q) (Q_TO_CONN((q))->conn_tcp) 221 #define Q_TO_UDP(q) (Q_TO_CONN((q))->conn_udp) 222 #define Q_TO_ICMP(q) (Q_TO_CONN((q))->conn_icmp) 223 #define Q_TO_RTS(q) (Q_TO_CONN((q))->conn_rts) 224 225 #define CONNP_TO_WQ(connp) ((connp)->conn_wq) 226 #define CONNP_TO_RQ(connp) ((connp)->conn_rq) 227 228 #define GRAB_CONN_LOCK(q) { \ 229 if (q != NULL && CONN_Q(q)) \ 230 mutex_enter(&(Q_TO_CONN(q))->conn_lock); \ 231 } 232 233 #define RELEASE_CONN_LOCK(q) { \ 234 if (q != NULL && CONN_Q(q)) \ 235 mutex_exit(&(Q_TO_CONN(q))->conn_lock); \ 236 } 237 238 /* 239 * Ref counter macros for ioctls. This provides a guard for TCP to stop 240 * tcp_close from removing the rq/wq whilst an ioctl is still in flight on the 241 * stream. The ioctl could have been queued on e.g. an ipsq. tcp_close will wait 242 * until the ioctlref count is zero before proceeding. 243 * Ideally conn_oper_pending_ill would be used for this purpose. However, in the 244 * case where an ioctl is aborted or interrupted, it can be cleared prematurely. 245 * There are also some race possibilities between ip and the stream head which 246 * can also end up with conn_oper_pending_ill being cleared prematurely. So, to 247 * avoid these situations, we use a dedicated ref counter for ioctls which is 248 * used in addition to and in parallel with the normal conn_ref count. 249 */ 250 #define CONN_INC_IOCTLREF_LOCKED(connp) { \ 251 ASSERT(MUTEX_HELD(&(connp)->conn_lock)); \ 252 DTRACE_PROBE1(conn__inc__ioctlref, conn_t *, (connp)); \ 253 (connp)->conn_ioctlref++; \ 254 mutex_exit(&(connp)->conn_lock); \ 255 } 256 257 #define CONN_INC_IOCTLREF(connp) { \ 258 mutex_enter(&(connp)->conn_lock); \ 259 CONN_INC_IOCTLREF_LOCKED(connp); \ 260 } 261 262 #define CONN_DEC_IOCTLREF(connp) { \ 263 mutex_enter(&(connp)->conn_lock); \ 264 DTRACE_PROBE1(conn__dec__ioctlref, conn_t *, (connp)); \ 265 /* Make sure conn_ioctlref will not underflow. */ \ 266 ASSERT((connp)->conn_ioctlref != 0); \ 267 if ((--(connp)->conn_ioctlref == 0) && \ 268 ((connp)->conn_state_flags & CONN_CLOSING)) { \ 269 cv_broadcast(&(connp)->conn_cv); \ 270 } \ 271 mutex_exit(&(connp)->conn_lock); \ 272 } 273 274 275 /* 276 * Complete the pending operation. Usually an ioctl. Can also 277 * be a bind or option management request that got enqueued 278 * in an ipsq_t. Called on completion of the operation. 279 */ 280 #define CONN_OPER_PENDING_DONE(connp) { \ 281 mutex_enter(&(connp)->conn_lock); \ 282 (connp)->conn_oper_pending_ill = NULL; \ 283 cv_broadcast(&(connp)->conn_refcv); \ 284 mutex_exit(&(connp)->conn_lock); \ 285 CONN_DEC_REF(connp); \ 286 } 287 288 /* 289 * Values for squeue switch: 290 */ 291 #define IP_SQUEUE_ENTER_NODRAIN 1 292 #define IP_SQUEUE_ENTER 2 293 #define IP_SQUEUE_FILL 3 294 295 extern int ip_squeue_flag; 296 297 /* IP Fragmentation Reassembly Header */ 298 typedef struct ipf_s { 299 struct ipf_s *ipf_hash_next; 300 struct ipf_s **ipf_ptphn; /* Pointer to previous hash next. */ 301 uint32_t ipf_ident; /* Ident to match. */ 302 uint8_t ipf_protocol; /* Protocol to match. */ 303 uchar_t ipf_last_frag_seen : 1; /* Last fragment seen ? */ 304 time_t ipf_timestamp; /* Reassembly start time. */ 305 mblk_t *ipf_mp; /* mblk we live in. */ 306 mblk_t *ipf_tail_mp; /* Frag queue tail pointer. */ 307 int ipf_hole_cnt; /* Number of holes (hard-case). */ 308 int ipf_end; /* Tail end offset (0 -> hard-case). */ 309 uint_t ipf_gen; /* Frag queue generation */ 310 size_t ipf_count; /* Count of bytes used by frag */ 311 uint_t ipf_nf_hdr_len; /* Length of nonfragmented header */ 312 in6_addr_t ipf_v6src; /* IPv6 source address */ 313 in6_addr_t ipf_v6dst; /* IPv6 dest address */ 314 uint_t ipf_prev_nexthdr_offset; /* Offset for nexthdr value */ 315 uint8_t ipf_ecn; /* ECN info for the fragments */ 316 uint8_t ipf_num_dups; /* Number of times dup frags recvd */ 317 uint16_t ipf_checksum_flags; /* Hardware checksum flags */ 318 uint32_t ipf_checksum; /* Partial checksum of fragment data */ 319 } ipf_t; 320 321 /* 322 * IPv4 Fragments 323 */ 324 #define IS_V4_FRAGMENT(ipha_fragment_offset_and_flags) \ 325 (((ntohs(ipha_fragment_offset_and_flags) & IPH_OFFSET) != 0) || \ 326 ((ntohs(ipha_fragment_offset_and_flags) & IPH_MF) != 0)) 327 328 #define ipf_src V4_PART_OF_V6(ipf_v6src) 329 #define ipf_dst V4_PART_OF_V6(ipf_v6dst) 330 331 #endif /* _KERNEL */ 332 333 /* ICMP types */ 334 #define ICMP_ECHO_REPLY 0 335 #define ICMP_DEST_UNREACHABLE 3 336 #define ICMP_SOURCE_QUENCH 4 337 #define ICMP_REDIRECT 5 338 #define ICMP_ECHO_REQUEST 8 339 #define ICMP_ROUTER_ADVERTISEMENT 9 340 #define ICMP_ROUTER_SOLICITATION 10 341 #define ICMP_TIME_EXCEEDED 11 342 #define ICMP_PARAM_PROBLEM 12 343 #define ICMP_TIME_STAMP_REQUEST 13 344 #define ICMP_TIME_STAMP_REPLY 14 345 #define ICMP_INFO_REQUEST 15 346 #define ICMP_INFO_REPLY 16 347 #define ICMP_ADDRESS_MASK_REQUEST 17 348 #define ICMP_ADDRESS_MASK_REPLY 18 349 350 /* Evaluates to true if the ICMP type is an ICMP error */ 351 #define ICMP_IS_ERROR(type) ( \ 352 (type) == ICMP_DEST_UNREACHABLE || \ 353 (type) == ICMP_SOURCE_QUENCH || \ 354 (type) == ICMP_TIME_EXCEEDED || \ 355 (type) == ICMP_PARAM_PROBLEM) 356 357 /* ICMP_TIME_EXCEEDED codes */ 358 #define ICMP_TTL_EXCEEDED 0 359 #define ICMP_REASSEMBLY_TIME_EXCEEDED 1 360 361 /* ICMP_DEST_UNREACHABLE codes */ 362 #define ICMP_NET_UNREACHABLE 0 363 #define ICMP_HOST_UNREACHABLE 1 364 #define ICMP_PROTOCOL_UNREACHABLE 2 365 #define ICMP_PORT_UNREACHABLE 3 366 #define ICMP_FRAGMENTATION_NEEDED 4 367 #define ICMP_SOURCE_ROUTE_FAILED 5 368 #define ICMP_DEST_NET_UNKNOWN 6 369 #define ICMP_DEST_HOST_UNKNOWN 7 370 #define ICMP_SRC_HOST_ISOLATED 8 371 #define ICMP_DEST_NET_UNREACH_ADMIN 9 372 #define ICMP_DEST_HOST_UNREACH_ADMIN 10 373 #define ICMP_DEST_NET_UNREACH_TOS 11 374 #define ICMP_DEST_HOST_UNREACH_TOS 12 375 376 /* ICMP Header Structure */ 377 typedef struct icmph_s { 378 uint8_t icmph_type; 379 uint8_t icmph_code; 380 uint16_t icmph_checksum; 381 union { 382 struct { /* ECHO request/response structure */ 383 uint16_t u_echo_ident; 384 uint16_t u_echo_seqnum; 385 } u_echo; 386 struct { /* Destination unreachable structure */ 387 uint16_t u_du_zero; 388 uint16_t u_du_mtu; 389 } u_du; 390 struct { /* Parameter problem structure */ 391 uint8_t u_pp_ptr; 392 uint8_t u_pp_rsvd[3]; 393 } u_pp; 394 struct { /* Redirect structure */ 395 ipaddr_t u_rd_gateway; 396 } u_rd; 397 } icmph_u; 398 } icmph_t; 399 400 #define icmph_echo_ident icmph_u.u_echo.u_echo_ident 401 #define icmph_echo_seqnum icmph_u.u_echo.u_echo_seqnum 402 #define icmph_du_zero icmph_u.u_du.u_du_zero 403 #define icmph_du_mtu icmph_u.u_du.u_du_mtu 404 #define icmph_pp_ptr icmph_u.u_pp.u_pp_ptr 405 #define icmph_rd_gateway icmph_u.u_rd.u_rd_gateway 406 407 #define ICMPH_SIZE 8 408 409 /* 410 * Minimum length of transport layer header included in an ICMP error 411 * message for it to be considered valid. 412 */ 413 #define ICMP_MIN_TP_HDR_LEN 8 414 415 /* Aligned IP header */ 416 typedef struct ipha_s { 417 uint8_t ipha_version_and_hdr_length; 418 uint8_t ipha_type_of_service; 419 uint16_t ipha_length; 420 uint16_t ipha_ident; 421 uint16_t ipha_fragment_offset_and_flags; 422 uint8_t ipha_ttl; 423 uint8_t ipha_protocol; 424 uint16_t ipha_hdr_checksum; 425 ipaddr_t ipha_src; 426 ipaddr_t ipha_dst; 427 } ipha_t; 428 429 /* 430 * IP Flags 431 * 432 * Some of these constant names are copied for the DTrace IP provider in 433 * usr/src/lib/libdtrace/common/{ip.d.in, ip.sed.in}, which should be kept 434 * in sync. 435 */ 436 #define IPH_DF 0x4000 /* Don't fragment */ 437 #define IPH_MF 0x2000 /* More fragments to come */ 438 #define IPH_OFFSET 0x1FFF /* Where the offset lives */ 439 440 /* Byte-order specific values */ 441 #ifdef _BIG_ENDIAN 442 #define IPH_DF_HTONS 0x4000 /* Don't fragment */ 443 #define IPH_MF_HTONS 0x2000 /* More fragments to come */ 444 #define IPH_OFFSET_HTONS 0x1FFF /* Where the offset lives */ 445 #else 446 #define IPH_DF_HTONS 0x0040 /* Don't fragment */ 447 #define IPH_MF_HTONS 0x0020 /* More fragments to come */ 448 #define IPH_OFFSET_HTONS 0xFF1F /* Where the offset lives */ 449 #endif 450 451 /* ECN code points for IPv4 TOS byte and IPv6 traffic class octet. */ 452 #define IPH_ECN_NECT 0x0 /* Not ECN-Capable Transport */ 453 #define IPH_ECN_ECT1 0x1 /* ECN-Capable Transport, ECT(1) */ 454 #define IPH_ECN_ECT0 0x2 /* ECN-Capable Transport, ECT(0) */ 455 #define IPH_ECN_CE 0x3 /* ECN-Congestion Experienced (CE) */ 456 457 struct ill_s; 458 459 typedef void ip_v6intfid_func_t(struct ill_s *, in6_addr_t *); 460 typedef void ip_v6mapinfo_func_t(struct ill_s *, uchar_t *, uchar_t *); 461 typedef void ip_v4mapinfo_func_t(struct ill_s *, uchar_t *, uchar_t *); 462 463 /* IP Mac info structure */ 464 typedef struct ip_m_s { 465 t_uscalar_t ip_m_mac_type; /* From <sys/dlpi.h> */ 466 int ip_m_type; /* From <net/if_types.h> */ 467 t_uscalar_t ip_m_ipv4sap; 468 t_uscalar_t ip_m_ipv6sap; 469 ip_v4mapinfo_func_t *ip_m_v4mapping; 470 ip_v6mapinfo_func_t *ip_m_v6mapping; 471 ip_v6intfid_func_t *ip_m_v6intfid; 472 ip_v6intfid_func_t *ip_m_v6destintfid; 473 } ip_m_t; 474 475 /* 476 * The following functions attempt to reduce the link layer dependency 477 * of the IP stack. The current set of link specific operations are: 478 * a. map from IPv4 class D (224.0/4) multicast address range or the 479 * IPv6 multicast address range (ff00::/8) to the link layer multicast 480 * address. 481 * b. derive the default IPv6 interface identifier from the interface. 482 * c. derive the default IPv6 destination interface identifier from 483 * the interface (point-to-point only). 484 */ 485 extern void ip_mcast_mapping(struct ill_s *, uchar_t *, uchar_t *); 486 /* ip_m_v6*intfid return void and are never NULL */ 487 #define MEDIA_V6INTFID(ip_m, ill, v6ptr) (ip_m)->ip_m_v6intfid(ill, v6ptr) 488 #define MEDIA_V6DESTINTFID(ip_m, ill, v6ptr) \ 489 (ip_m)->ip_m_v6destintfid(ill, v6ptr) 490 491 /* Router entry types */ 492 #define IRE_BROADCAST 0x0001 /* Route entry for broadcast address */ 493 #define IRE_DEFAULT 0x0002 /* Route entry for default gateway */ 494 #define IRE_LOCAL 0x0004 /* Route entry for local address */ 495 #define IRE_LOOPBACK 0x0008 /* Route entry for loopback address */ 496 #define IRE_PREFIX 0x0010 /* Route entry for prefix routes */ 497 #ifndef _KERNEL 498 /* Keep so user-level still compiles */ 499 #define IRE_CACHE 0x0020 /* Cached Route entry */ 500 #endif 501 #define IRE_IF_NORESOLVER 0x0040 /* Route entry for local interface */ 502 /* net without any address mapping. */ 503 #define IRE_IF_RESOLVER 0x0080 /* Route entry for local interface */ 504 /* net with resolver. */ 505 #define IRE_HOST 0x0100 /* Host route entry */ 506 /* Keep so user-level still compiles */ 507 #define IRE_HOST_REDIRECT 0x0200 /* only used for T_SVR4_OPTMGMT_REQ */ 508 #define IRE_IF_CLONE 0x0400 /* Per host clone of IRE_IF */ 509 #define IRE_MULTICAST 0x0800 /* Special - not in table */ 510 #define IRE_NOROUTE 0x1000 /* Special - not in table */ 511 512 #define IRE_INTERFACE (IRE_IF_NORESOLVER | IRE_IF_RESOLVER) 513 514 #define IRE_IF_ALL (IRE_IF_NORESOLVER | IRE_IF_RESOLVER | \ 515 IRE_IF_CLONE) 516 #define IRE_OFFSUBNET (IRE_DEFAULT | IRE_PREFIX | IRE_HOST) 517 #define IRE_OFFLINK IRE_OFFSUBNET 518 /* 519 * Note that we view IRE_NOROUTE as ONLINK since we can "send" to them without 520 * going through a router; the result of sending will be an error/icmp error. 521 */ 522 #define IRE_ONLINK (IRE_IF_ALL|IRE_LOCAL|IRE_LOOPBACK| \ 523 IRE_BROADCAST|IRE_MULTICAST|IRE_NOROUTE) 524 525 /* Arguments to ire_flush_cache() */ 526 #define IRE_FLUSH_DELETE 0 527 #define IRE_FLUSH_ADD 1 528 #define IRE_FLUSH_GWCHANGE 2 529 530 /* 531 * Flags to ire_route_recursive 532 */ 533 #define IRR_NONE 0 534 #define IRR_ALLOCATE 1 /* OK to allocate IRE_IF_CLONE */ 535 #define IRR_INCOMPLETE 2 /* OK to return incomplete chain */ 536 537 /* 538 * Open/close synchronization flags. 539 * These are kept in a separate field in the conn and the synchronization 540 * depends on the atomic 32 bit access to that field. 541 */ 542 #define CONN_CLOSING 0x01 /* ip_close waiting for ip_wsrv */ 543 #define CONN_CONDEMNED 0x02 /* conn is closing, no more refs */ 544 #define CONN_INCIPIENT 0x04 /* conn not yet visible, no refs */ 545 #define CONN_QUIESCED 0x08 /* conn is now quiescent */ 546 #define CONN_UPDATE_ILL 0x10 /* conn_update_ill in progress */ 547 548 /* 549 * Flags for dce_flags field. Specifies which information has been set. 550 * dce_ident is always present, but the other ones are identified by the flags. 551 */ 552 #define DCEF_DEFAULT 0x0001 /* Default DCE - no pmtu or uinfo */ 553 #define DCEF_PMTU 0x0002 /* Different than interface MTU */ 554 #define DCEF_UINFO 0x0004 /* dce_uinfo set */ 555 #define DCEF_TOO_SMALL_PMTU 0x0008 /* Smaller than IPv4 MIN */ 556 557 #ifdef _KERNEL 558 /* 559 * Extra structures need for per-src-addr filtering (IGMPv3/MLDv2) 560 */ 561 #define MAX_FILTER_SIZE 64 562 563 typedef struct slist_s { 564 int sl_numsrc; 565 in6_addr_t sl_addr[MAX_FILTER_SIZE]; 566 } slist_t; 567 568 /* 569 * Following struct is used to maintain retransmission state for 570 * a multicast group. One rtx_state_t struct is an in-line field 571 * of the ilm_t struct; the slist_ts in the rtx_state_t struct are 572 * alloc'd as needed. 573 */ 574 typedef struct rtx_state_s { 575 uint_t rtx_timer; /* retrans timer */ 576 int rtx_cnt; /* retrans count */ 577 int rtx_fmode_cnt; /* retrans count for fmode change */ 578 slist_t *rtx_allow; 579 slist_t *rtx_block; 580 } rtx_state_t; 581 582 /* 583 * Used to construct list of multicast address records that will be 584 * sent in a single listener report. 585 */ 586 typedef struct mrec_s { 587 struct mrec_s *mrec_next; 588 uint8_t mrec_type; 589 uint8_t mrec_auxlen; /* currently unused */ 590 in6_addr_t mrec_group; 591 slist_t mrec_srcs; 592 } mrec_t; 593 594 /* Group membership list per upper conn */ 595 596 /* 597 * We record the multicast information from the socket option in 598 * ilg_ifaddr/ilg_ifindex. This allows rejoining the group in the case when 599 * the ifaddr (or ifindex) disappears and later reappears, potentially on 600 * a different ill. The IPv6 multicast socket options and ioctls all specify 601 * the interface using an ifindex. For IPv4 some socket options/ioctls use 602 * the interface address and others use the index. We record here the method 603 * that was actually used (and leave the other of ilg_ifaddr or ilg_ifindex) 604 * at zero so that we can rejoin the way the application intended. 605 * 606 * We track the ill on which we will or already have joined an ilm using 607 * ilg_ill. When we have succeeded joining the ilm and have a refhold on it 608 * then we set ilg_ilm. Thus intentionally there is a window where ilg_ill is 609 * set and ilg_ilm is not set. This allows clearing ilg_ill as a signal that 610 * the ill is being unplumbed and the ilm should be discarded. 611 * 612 * ilg records the state of multicast memberships of a socket end point. 613 * ilm records the state of multicast memberships with the driver and is 614 * maintained per interface. 615 * 616 * The ilg state is protected by conn_ilg_lock. 617 * The ilg will not be freed until ilg_refcnt drops to zero. 618 */ 619 typedef struct ilg_s { 620 struct ilg_s *ilg_next; 621 struct ilg_s **ilg_ptpn; 622 struct conn_s *ilg_connp; /* Back pointer to get lock */ 623 in6_addr_t ilg_v6group; 624 ipaddr_t ilg_ifaddr; /* For some IPv4 cases */ 625 uint_t ilg_ifindex; /* IPv6 and some other IPv4 cases */ 626 struct ill_s *ilg_ill; /* Where ilm is joined. No refhold */ 627 struct ilm_s *ilg_ilm; /* With ilm_refhold */ 628 uint_t ilg_refcnt; 629 mcast_record_t ilg_fmode; /* MODE_IS_INCLUDE/MODE_IS_EXCLUDE */ 630 slist_t *ilg_filter; 631 boolean_t ilg_condemned; /* Conceptually deleted */ 632 } ilg_t; 633 634 /* 635 * Multicast address list entry for ill. 636 * ilm_ill is used by IPv4 and IPv6 637 * 638 * The ilm state (and other multicast state on the ill) is protected by 639 * ill_mcast_lock. Operations that change state on both an ilg and ilm 640 * in addition use ill_mcast_serializer to ensure that we can't have 641 * interleaving between e.g., add and delete operations for the same conn_t, 642 * group, and ill. The ill_mcast_serializer is also used to ensure that 643 * multicast group joins do not occur on an interface that is in the process 644 * of joining an IPMP group. 645 * 646 * The comment below (and for other netstack_t references) refers 647 * to the fact that we only do netstack_hold in particular cases, 648 * such as the references from open endpoints (ill_t and conn_t's 649 * pointers). Internally within IP we rely on IP's ability to cleanup e.g. 650 * ire_t's when an ill goes away. 651 */ 652 typedef struct ilm_s { 653 in6_addr_t ilm_v6addr; 654 int ilm_refcnt; 655 uint_t ilm_timer; /* IGMP/MLD query resp timer, in msec */ 656 struct ilm_s *ilm_next; /* Linked list for each ill */ 657 uint_t ilm_state; /* state of the membership */ 658 struct ill_s *ilm_ill; /* Back pointer to ill - ill_ilm_cnt */ 659 zoneid_t ilm_zoneid; 660 int ilm_no_ilg_cnt; /* number of joins w/ no ilg */ 661 mcast_record_t ilm_fmode; /* MODE_IS_INCLUDE/MODE_IS_EXCLUDE */ 662 slist_t *ilm_filter; /* source filter list */ 663 slist_t *ilm_pendsrcs; /* relevant src addrs for pending req */ 664 rtx_state_t ilm_rtx; /* SCR retransmission state */ 665 ipaddr_t ilm_ifaddr; /* For IPv4 netstat */ 666 ip_stack_t *ilm_ipst; /* Does not have a netstack_hold */ 667 } ilm_t; 668 669 #define ilm_addr V4_PART_OF_V6(ilm_v6addr) 670 671 /* 672 * Soft reference to an IPsec SA. 673 * 674 * On relative terms, conn's can be persistent (living as long as the 675 * processes which create them), while SA's are ephemeral (dying when 676 * they hit their time-based or byte-based lifetimes). 677 * 678 * We could hold a hard reference to an SA from an ipsec_latch_t, 679 * but this would cause expired SA's to linger for a potentially 680 * unbounded time. 681 * 682 * Instead, we remember the hash bucket number and bucket generation 683 * in addition to the pointer. The bucket generation is incremented on 684 * each deletion. 685 */ 686 typedef struct ipsa_ref_s 687 { 688 struct ipsa_s *ipsr_sa; 689 struct isaf_s *ipsr_bucket; 690 uint64_t ipsr_gen; 691 } ipsa_ref_t; 692 693 /* 694 * IPsec "latching" state. 695 * 696 * In the presence of IPsec policy, fully-bound conn's bind a connection 697 * to more than just the 5-tuple, but also a specific IPsec action and 698 * identity-pair. 699 * The identity pair is accessed from both the receive and transmit side 700 * hence it is maintained in the ipsec_latch_t structure. conn_latch and 701 * ixa_ipsec_latch points to it. 702 * The policy and actions are stored in conn_latch_in_policy and 703 * conn_latch_in_action for the inbound side, and in ixa_ipsec_policy and 704 * ixa_ipsec_action for the transmit side. 705 * 706 * As an optimization, we also cache soft references to IPsec SA's in 707 * ip_xmit_attr_t so that we can fast-path around most of the work needed for 708 * outbound IPsec SA selection. 709 */ 710 typedef struct ipsec_latch_s 711 { 712 kmutex_t ipl_lock; 713 uint32_t ipl_refcnt; 714 715 struct ipsid_s *ipl_local_cid; 716 struct ipsid_s *ipl_remote_cid; 717 unsigned int 718 ipl_ids_latched : 1, 719 720 ipl_pad_to_bit_31 : 31; 721 } ipsec_latch_t; 722 723 #define IPLATCH_REFHOLD(ipl) { \ 724 atomic_inc_32(&(ipl)->ipl_refcnt); \ 725 ASSERT((ipl)->ipl_refcnt != 0); \ 726 } 727 728 #define IPLATCH_REFRELE(ipl) { \ 729 ASSERT((ipl)->ipl_refcnt != 0); \ 730 membar_exit(); \ 731 if (atomic_dec_32_nv(&(ipl)->ipl_refcnt) == 0) \ 732 iplatch_free(ipl); \ 733 } 734 735 /* 736 * peer identity structure. 737 */ 738 typedef struct conn_s conn_t; 739 740 /* 741 * This is used to match an inbound/outbound datagram with policy. 742 */ 743 typedef struct ipsec_selector { 744 in6_addr_t ips_local_addr_v6; 745 in6_addr_t ips_remote_addr_v6; 746 uint16_t ips_local_port; 747 uint16_t ips_remote_port; 748 uint8_t ips_icmp_type; 749 uint8_t ips_icmp_code; 750 uint8_t ips_protocol; 751 uint8_t ips_isv4 : 1, 752 ips_is_icmp_inv_acq: 1; 753 } ipsec_selector_t; 754 755 /* 756 * Note that we put v4 addresses in the *first* 32-bit word of the 757 * selector rather than the last to simplify the prefix match/mask code 758 * in spd.c 759 */ 760 #define ips_local_addr_v4 ips_local_addr_v6.s6_addr32[0] 761 #define ips_remote_addr_v4 ips_remote_addr_v6.s6_addr32[0] 762 763 /* Values used in IP by IPSEC Code */ 764 #define IPSEC_OUTBOUND B_TRUE 765 #define IPSEC_INBOUND B_FALSE 766 767 /* 768 * There are two variants in policy failures. The packet may come in 769 * secure when not needed (IPSEC_POLICY_???_NOT_NEEDED) or it may not 770 * have the desired level of protection (IPSEC_POLICY_MISMATCH). 771 */ 772 #define IPSEC_POLICY_NOT_NEEDED 0 773 #define IPSEC_POLICY_MISMATCH 1 774 #define IPSEC_POLICY_AUTH_NOT_NEEDED 2 775 #define IPSEC_POLICY_ENCR_NOT_NEEDED 3 776 #define IPSEC_POLICY_SE_NOT_NEEDED 4 777 #define IPSEC_POLICY_MAX 5 /* Always max + 1. */ 778 779 /* 780 * Check with IPSEC inbound policy if 781 * 782 * 1) per-socket policy is present - indicated by conn_in_enforce_policy. 783 * 2) Or if we have not cached policy on the conn and the global policy is 784 * non-empty. 785 */ 786 #define CONN_INBOUND_POLICY_PRESENT(connp, ipss) \ 787 ((connp)->conn_in_enforce_policy || \ 788 (!((connp)->conn_policy_cached) && \ 789 (ipss)->ipsec_inbound_v4_policy_present)) 790 791 #define CONN_INBOUND_POLICY_PRESENT_V6(connp, ipss) \ 792 ((connp)->conn_in_enforce_policy || \ 793 (!(connp)->conn_policy_cached && \ 794 (ipss)->ipsec_inbound_v6_policy_present)) 795 796 #define CONN_OUTBOUND_POLICY_PRESENT(connp, ipss) \ 797 ((connp)->conn_out_enforce_policy || \ 798 (!((connp)->conn_policy_cached) && \ 799 (ipss)->ipsec_outbound_v4_policy_present)) 800 801 #define CONN_OUTBOUND_POLICY_PRESENT_V6(connp, ipss) \ 802 ((connp)->conn_out_enforce_policy || \ 803 (!(connp)->conn_policy_cached && \ 804 (ipss)->ipsec_outbound_v6_policy_present)) 805 806 /* 807 * Information cached in IRE for upper layer protocol (ULP). 808 */ 809 typedef struct iulp_s { 810 boolean_t iulp_set; /* Is any metric set? */ 811 uint32_t iulp_ssthresh; /* Slow start threshold (TCP). */ 812 clock_t iulp_rtt; /* Guestimate in millisecs. */ 813 clock_t iulp_rtt_sd; /* Cached value of RTT variance. */ 814 uint32_t iulp_spipe; /* Send pipe size. */ 815 uint32_t iulp_rpipe; /* Receive pipe size. */ 816 uint32_t iulp_rtomax; /* Max round trip timeout. */ 817 uint32_t iulp_sack; /* Use SACK option (TCP)? */ 818 uint32_t iulp_mtu; /* Setable with routing sockets */ 819 820 uint32_t 821 iulp_tstamp_ok : 1, /* Use timestamp option (TCP)? */ 822 iulp_wscale_ok : 1, /* Use window scale option (TCP)? */ 823 iulp_ecn_ok : 1, /* Enable ECN (for TCP)? */ 824 iulp_pmtud_ok : 1, /* Enable PMTUd? */ 825 826 /* These three are passed out by ip_set_destination */ 827 iulp_localnet: 1, /* IRE_ONLINK */ 828 iulp_loopback: 1, /* IRE_LOOPBACK */ 829 iulp_local: 1, /* IRE_LOCAL */ 830 831 iulp_not_used : 25; 832 } iulp_t; 833 834 /* 835 * The conn drain list structure (idl_t), protected by idl_lock. Each conn_t 836 * inserted in the list points back at this idl_t using conn_idl, and is 837 * chained by conn_drain_next and conn_drain_prev, which are also protected by 838 * idl_lock. When flow control is relieved, either ip_wsrv() (STREAMS) or 839 * ill_flow_enable() (non-STREAMS) will call conn_drain(). 840 * 841 * The conn drain list, idl_t, itself is part of tx cookie list structure. 842 * A tx cookie list points to a blocked Tx ring and contains the list of 843 * all conn's that are blocked due to the flow-controlled Tx ring (via 844 * the idl drain list). Note that a link can have multiple Tx rings. The 845 * drain list will store the conn's blocked due to Tx ring being flow 846 * controlled. 847 */ 848 849 typedef uintptr_t ip_mac_tx_cookie_t; 850 typedef struct idl_s idl_t; 851 typedef struct idl_tx_list_s idl_tx_list_t; 852 853 struct idl_tx_list_s { 854 ip_mac_tx_cookie_t txl_cookie; 855 kmutex_t txl_lock; /* Lock for this list */ 856 idl_t *txl_drain_list; 857 int txl_drain_index; 858 }; 859 860 struct idl_s { 861 conn_t *idl_conn; /* Head of drain list */ 862 kmutex_t idl_lock; /* Lock for this list */ 863 idl_tx_list_t *idl_itl; 864 }; 865 866 /* 867 * Interface route structure which holds the necessary information to recreate 868 * routes that are tied to an interface i.e. have ire_ill set. 869 * 870 * These routes which were initially created via a routing socket or via the 871 * SIOCADDRT ioctl may be gateway routes (RTF_GATEWAY being set) or may be 872 * traditional interface routes. When an ill comes back up after being 873 * down, this information will be used to recreate the routes. These 874 * are part of an mblk_t chain that hangs off of the ILL (ill_saved_ire_mp). 875 */ 876 typedef struct ifrt_s { 877 ushort_t ifrt_type; /* Type of IRE */ 878 in6_addr_t ifrt_v6addr; /* Address IRE represents. */ 879 in6_addr_t ifrt_v6gateway_addr; /* Gateway if IRE_OFFLINK */ 880 in6_addr_t ifrt_v6setsrc_addr; /* Src addr if RTF_SETSRC */ 881 in6_addr_t ifrt_v6mask; /* Mask for matching IRE. */ 882 uint32_t ifrt_flags; /* flags related to route */ 883 iulp_t ifrt_metrics; /* Routing socket metrics */ 884 zoneid_t ifrt_zoneid; /* zoneid for route */ 885 } ifrt_t; 886 887 #define ifrt_addr V4_PART_OF_V6(ifrt_v6addr) 888 #define ifrt_gateway_addr V4_PART_OF_V6(ifrt_v6gateway_addr) 889 #define ifrt_mask V4_PART_OF_V6(ifrt_v6mask) 890 #define ifrt_setsrc_addr V4_PART_OF_V6(ifrt_v6setsrc_addr) 891 892 /* Number of IP addresses that can be hosted on a physical interface */ 893 #define MAX_ADDRS_PER_IF 8192 894 /* 895 * Number of Source addresses to be considered for source address 896 * selection. Used by ipif_select_source_v4/v6. 897 */ 898 #define MAX_IPIF_SELECT_SOURCE 50 899 900 #ifdef IP_DEBUG 901 /* 902 * Trace refholds and refreles for debugging. 903 */ 904 #define TR_STACK_DEPTH 14 905 typedef struct tr_buf_s { 906 int tr_depth; 907 clock_t tr_time; 908 pc_t tr_stack[TR_STACK_DEPTH]; 909 } tr_buf_t; 910 911 typedef struct th_trace_s { 912 int th_refcnt; 913 uint_t th_trace_lastref; 914 kthread_t *th_id; 915 #define TR_BUF_MAX 38 916 tr_buf_t th_trbuf[TR_BUF_MAX]; 917 } th_trace_t; 918 919 typedef struct th_hash_s { 920 list_node_t thh_link; 921 mod_hash_t *thh_hash; 922 ip_stack_t *thh_ipst; 923 } th_hash_t; 924 #endif 925 926 /* The following are ipif_state_flags */ 927 #define IPIF_CONDEMNED 0x1 /* The ipif is being removed */ 928 #define IPIF_CHANGING 0x2 /* A critcal ipif field is changing */ 929 #define IPIF_SET_LINKLOCAL 0x10 /* transient flag during bringup */ 930 931 /* IP interface structure, one per local address */ 932 typedef struct ipif_s { 933 struct ipif_s *ipif_next; 934 struct ill_s *ipif_ill; /* Back pointer to our ill */ 935 int ipif_id; /* Logical unit number */ 936 in6_addr_t ipif_v6lcl_addr; /* Local IP address for this if. */ 937 in6_addr_t ipif_v6subnet; /* Subnet prefix for this if. */ 938 in6_addr_t ipif_v6net_mask; /* Net mask for this interface. */ 939 in6_addr_t ipif_v6brd_addr; /* Broadcast addr for this interface. */ 940 in6_addr_t ipif_v6pp_dst_addr; /* Point-to-point dest address. */ 941 uint64_t ipif_flags; /* Interface flags. */ 942 uint_t ipif_ire_type; /* IRE_LOCAL or IRE_LOOPBACK */ 943 944 /* 945 * The packet count in the ipif contain the sum of the 946 * packet counts in dead IRE_LOCAL/LOOPBACK for this ipif. 947 */ 948 uint_t ipif_ib_pkt_count; /* Inbound packets for our dead IREs */ 949 950 /* Exclusive bit fields, protected by ipsq_t */ 951 unsigned int 952 ipif_was_up : 1, /* ipif was up before */ 953 ipif_addr_ready : 1, /* DAD is done */ 954 ipif_was_dup : 1, /* DAD had failed */ 955 ipif_added_nce : 1, /* nce added for local address */ 956 957 ipif_pad_to_31 : 28; 958 959 ilm_t *ipif_allhosts_ilm; /* For all-nodes join */ 960 ilm_t *ipif_solmulti_ilm; /* For IPv6 solicited multicast join */ 961 962 uint_t ipif_seqid; /* unique index across all ills */ 963 uint_t ipif_state_flags; /* See IPIF_* flag defs above */ 964 uint_t ipif_refcnt; /* active consistent reader cnt */ 965 966 zoneid_t ipif_zoneid; /* zone ID number */ 967 timeout_id_t ipif_recovery_id; /* Timer for DAD recovery */ 968 boolean_t ipif_trace_disable; /* True when alloc fails */ 969 /* 970 * For an IPMP interface, ipif_bound_ill tracks the ill whose hardware 971 * information this ipif is associated with via ARP/NDP. We can use 972 * an ill pointer (rather than an index) because only ills that are 973 * part of a group will be pointed to, and an ill cannot disappear 974 * while it's in a group. 975 */ 976 struct ill_s *ipif_bound_ill; 977 struct ipif_s *ipif_bound_next; /* bound ipif chain */ 978 boolean_t ipif_bound; /* B_TRUE if we successfully bound */ 979 980 struct ire_s *ipif_ire_local; /* Our IRE_LOCAL or LOOPBACK */ 981 struct ire_s *ipif_ire_if; /* Our IRE_INTERFACE */ 982 } ipif_t; 983 984 /* 985 * The following table lists the protection levels of the various members 986 * of the ipif_t. The following notation is used. 987 * 988 * Write once - Written to only once at the time of bringing up 989 * the interface and can be safely read after the bringup without any lock. 990 * 991 * ipsq - Need to execute in the ipsq to perform the indicated access. 992 * 993 * ill_lock - Need to hold this mutex to perform the indicated access. 994 * 995 * ill_g_lock - Need to hold this rw lock as reader/writer for read access or 996 * write access respectively. 997 * 998 * down ill - Written to only when the ill is down (i.e all ipifs are down) 999 * up ill - Read only when the ill is up (i.e. at least 1 ipif is up) 1000 * 1001 * Table of ipif_t members and their protection 1002 * 1003 * ipif_next ipsq + ill_lock + ipsq OR ill_lock OR 1004 * ill_g_lock ill_g_lock 1005 * ipif_ill ipsq + down ipif write once 1006 * ipif_id ipsq + down ipif write once 1007 * ipif_v6lcl_addr ipsq + down ipif up ipif 1008 * ipif_v6subnet ipsq + down ipif up ipif 1009 * ipif_v6net_mask ipsq + down ipif up ipif 1010 * 1011 * ipif_v6brd_addr 1012 * ipif_v6pp_dst_addr 1013 * ipif_flags ill_lock ill_lock 1014 * ipif_ire_type ipsq + down ill up ill 1015 * 1016 * ipif_ib_pkt_count Approx 1017 * 1018 * bit fields ill_lock ill_lock 1019 * 1020 * ipif_allhosts_ilm ipsq ipsq 1021 * ipif_solmulti_ilm ipsq ipsq 1022 * 1023 * ipif_seqid ipsq Write once 1024 * 1025 * ipif_state_flags ill_lock ill_lock 1026 * ipif_refcnt ill_lock ill_lock 1027 * ipif_bound_ill ipsq + ipmp_lock ipsq OR ipmp_lock 1028 * ipif_bound_next ipsq ipsq 1029 * ipif_bound ipsq ipsq 1030 * 1031 * ipif_ire_local ipsq + ips_ill_g_lock ipsq OR ips_ill_g_lock 1032 * ipif_ire_if ipsq + ips_ill_g_lock ipsq OR ips_ill_g_lock 1033 */ 1034 1035 /* 1036 * Return values from ip_laddr_verify_{v4,v6} 1037 */ 1038 typedef enum { IPVL_UNICAST_UP, IPVL_UNICAST_DOWN, IPVL_MCAST, IPVL_BCAST, 1039 IPVL_BAD} ip_laddr_t; 1040 1041 1042 #define IP_TR_HASH(tid) ((((uintptr_t)tid) >> 6) & (IP_TR_HASH_MAX - 1)) 1043 1044 #ifdef DEBUG 1045 #define IPIF_TRACE_REF(ipif) ipif_trace_ref(ipif) 1046 #define ILL_TRACE_REF(ill) ill_trace_ref(ill) 1047 #define IPIF_UNTRACE_REF(ipif) ipif_untrace_ref(ipif) 1048 #define ILL_UNTRACE_REF(ill) ill_untrace_ref(ill) 1049 #else 1050 #define IPIF_TRACE_REF(ipif) 1051 #define ILL_TRACE_REF(ill) 1052 #define IPIF_UNTRACE_REF(ipif) 1053 #define ILL_UNTRACE_REF(ill) 1054 #endif 1055 1056 /* IPv4 compatibility macros */ 1057 #define ipif_lcl_addr V4_PART_OF_V6(ipif_v6lcl_addr) 1058 #define ipif_subnet V4_PART_OF_V6(ipif_v6subnet) 1059 #define ipif_net_mask V4_PART_OF_V6(ipif_v6net_mask) 1060 #define ipif_brd_addr V4_PART_OF_V6(ipif_v6brd_addr) 1061 #define ipif_pp_dst_addr V4_PART_OF_V6(ipif_v6pp_dst_addr) 1062 1063 /* Macros for easy backreferences to the ill. */ 1064 #define ipif_isv6 ipif_ill->ill_isv6 1065 1066 #define SIOCLIFADDR_NDX 112 /* ndx of SIOCLIFADDR in the ndx ioctl table */ 1067 1068 /* 1069 * mode value for ip_ioctl_finish for finishing an ioctl 1070 */ 1071 #define CONN_CLOSE 1 /* No mi_copy */ 1072 #define COPYOUT 2 /* do an mi_copyout if needed */ 1073 #define NO_COPYOUT 3 /* do an mi_copy_done */ 1074 #define IPI2MODE(ipi) ((ipi)->ipi_flags & IPI_GET_CMD ? COPYOUT : NO_COPYOUT) 1075 1076 /* 1077 * The IP-MT design revolves around the serialization objects ipsq_t (IPSQ) 1078 * and ipxop_t (exclusive operation or "xop"). Becoming "writer" on an IPSQ 1079 * ensures that no other threads can become "writer" on any IPSQs sharing that 1080 * IPSQ's xop until the writer thread is done. 1081 * 1082 * Each phyint points to one IPSQ that remains fixed over the phyint's life. 1083 * Each IPSQ points to one xop that can change over the IPSQ's life. If a 1084 * phyint is *not* in an IPMP group, then its IPSQ will refer to the IPSQ's 1085 * "own" xop (ipsq_ownxop). If a phyint *is* part of an IPMP group, then its 1086 * IPSQ will refer to the "group" xop, which is shorthand for the xop of the 1087 * IPSQ of the IPMP meta-interface's phyint. Thus, all phyints that are part 1088 * of the same IPMP group will have their IPSQ's point to the group xop, and 1089 * thus becoming "writer" on any phyint in the group will prevent any other 1090 * writer on any other phyint in the group. All IPSQs sharing the same xop 1091 * are chained together through ipsq_next (in the degenerate common case, 1092 * ipsq_next simply refers to itself). Note that the group xop is guaranteed 1093 * to exist at least as long as there are members in the group, since the IPMP 1094 * meta-interface can only be destroyed if the group is empty. 1095 * 1096 * Incoming exclusive operation requests are enqueued on the IPSQ they arrived 1097 * on rather than the xop. This makes switching xop's (as would happen when a 1098 * phyint leaves an IPMP group) simple, because after the phyint leaves the 1099 * group, any operations enqueued on its IPSQ can be safely processed with 1100 * respect to its new xop, and any operations enqueued on the IPSQs of its 1101 * former group can be processed with respect to their existing group xop. 1102 * Even so, switching xops is a subtle dance; see ipsq_dq() for details. 1103 * 1104 * An IPSQ's "own" xop is embedded within the IPSQ itself since they have have 1105 * identical lifetimes, and because doing so simplifies pointer management. 1106 * While each phyint and IPSQ point to each other, it is not possible to free 1107 * the IPSQ when the phyint is freed, since we may still *inside* the IPSQ 1108 * when the phyint is being freed. Thus, ipsq_phyint is set to NULL when the 1109 * phyint is freed, and the IPSQ free is later done in ipsq_exit(). 1110 * 1111 * ipsq_t synchronization: read write 1112 * 1113 * ipsq_xopq_mphead ipx_lock ipx_lock 1114 * ipsq_xopq_mptail ipx_lock ipx_lock 1115 * ipsq_xop_switch_mp ipsq_lock ipsq_lock 1116 * ipsq_phyint write once write once 1117 * ipsq_next RW_READER ill_g_lock RW_WRITER ill_g_lock 1118 * ipsq_xop ipsq_lock or ipsq ipsq_lock + ipsq 1119 * ipsq_swxop ipsq ipsq 1120 * ipsq_ownxop see ipxop_t see ipxop_t 1121 * ipsq_ipst write once write once 1122 * 1123 * ipxop_t synchronization: read write 1124 * 1125 * ipx_writer ipx_lock ipx_lock 1126 * ipx_xop_queued ipx_lock ipx_lock 1127 * ipx_mphead ipx_lock ipx_lock 1128 * ipx_mptail ipx_lock ipx_lock 1129 * ipx_ipsq write once write once 1130 * ips_ipsq_queued ipx_lock ipx_lock 1131 * ipx_waitfor ipsq or ipx_lock ipsq + ipx_lock 1132 * ipx_reentry_cnt ipsq or ipx_lock ipsq + ipx_lock 1133 * ipx_current_done ipsq ipsq 1134 * ipx_current_ioctl ipsq ipsq 1135 * ipx_current_ipif ipsq or ipx_lock ipsq + ipx_lock 1136 * ipx_pending_ipif ipsq or ipx_lock ipsq + ipx_lock 1137 * ipx_pending_mp ipsq or ipx_lock ipsq + ipx_lock 1138 * ipx_forced ipsq ipsq 1139 * ipx_depth ipsq ipsq 1140 * ipx_stack ipsq ipsq 1141 */ 1142 typedef struct ipxop_s { 1143 kmutex_t ipx_lock; /* see above */ 1144 kthread_t *ipx_writer; /* current owner */ 1145 mblk_t *ipx_mphead; /* messages tied to this op */ 1146 mblk_t *ipx_mptail; 1147 struct ipsq_s *ipx_ipsq; /* associated ipsq */ 1148 boolean_t ipx_ipsq_queued; /* ipsq using xop has queued op */ 1149 int ipx_waitfor; /* waiting; values encoded below */ 1150 int ipx_reentry_cnt; 1151 boolean_t ipx_current_done; /* is the current operation done? */ 1152 int ipx_current_ioctl; /* current ioctl, or 0 if no ioctl */ 1153 ipif_t *ipx_current_ipif; /* ipif for current op */ 1154 ipif_t *ipx_pending_ipif; /* ipif for ipx_pending_mp */ 1155 mblk_t *ipx_pending_mp; /* current ioctl mp while waiting */ 1156 boolean_t ipx_forced; /* debugging aid */ 1157 #ifdef DEBUG 1158 int ipx_depth; /* debugging aid */ 1159 #define IPX_STACK_DEPTH 15 1160 pc_t ipx_stack[IPX_STACK_DEPTH]; /* debugging aid */ 1161 #endif 1162 } ipxop_t; 1163 1164 typedef struct ipsq_s { 1165 kmutex_t ipsq_lock; /* see above */ 1166 mblk_t *ipsq_switch_mp; /* op to handle right after switch */ 1167 mblk_t *ipsq_xopq_mphead; /* list of excl ops (mostly ioctls) */ 1168 mblk_t *ipsq_xopq_mptail; 1169 struct phyint *ipsq_phyint; /* associated phyint */ 1170 struct ipsq_s *ipsq_next; /* next ipsq sharing ipsq_xop */ 1171 struct ipxop_s *ipsq_xop; /* current xop synchronization info */ 1172 struct ipxop_s *ipsq_swxop; /* switch xop to on ipsq_exit() */ 1173 struct ipxop_s ipsq_ownxop; /* our own xop (may not be in-use) */ 1174 ip_stack_t *ipsq_ipst; /* does not have a netstack_hold */ 1175 } ipsq_t; 1176 1177 /* 1178 * ipx_waitfor values: 1179 */ 1180 enum { 1181 IPIF_DOWN = 1, /* ipif_down() waiting for refcnts to drop */ 1182 ILL_DOWN, /* ill_down() waiting for refcnts to drop */ 1183 IPIF_FREE, /* ipif_free() waiting for refcnts to drop */ 1184 ILL_FREE /* ill unplumb waiting for refcnts to drop */ 1185 }; 1186 1187 /* Operation types for ipsq_try_enter() */ 1188 #define CUR_OP 0 /* request writer within current operation */ 1189 #define NEW_OP 1 /* request writer for a new operation */ 1190 #define SWITCH_OP 2 /* request writer once IPSQ XOP switches */ 1191 1192 /* 1193 * Kstats tracked on each IPMP meta-interface. Order here must match 1194 * ipmp_kstats[] in ip/ipmp.c. 1195 */ 1196 enum { 1197 IPMP_KSTAT_OBYTES, IPMP_KSTAT_OBYTES64, IPMP_KSTAT_RBYTES, 1198 IPMP_KSTAT_RBYTES64, IPMP_KSTAT_OPACKETS, IPMP_KSTAT_OPACKETS64, 1199 IPMP_KSTAT_OERRORS, IPMP_KSTAT_IPACKETS, IPMP_KSTAT_IPACKETS64, 1200 IPMP_KSTAT_IERRORS, IPMP_KSTAT_MULTIRCV, IPMP_KSTAT_MULTIXMT, 1201 IPMP_KSTAT_BRDCSTRCV, IPMP_KSTAT_BRDCSTXMT, IPMP_KSTAT_LINK_UP, 1202 IPMP_KSTAT_MAX /* keep last */ 1203 }; 1204 1205 /* 1206 * phyint represents state that is common to both IPv4 and IPv6 interfaces. 1207 * There is a separate ill_t representing IPv4 and IPv6 which has a 1208 * backpointer to the phyint structure for accessing common state. 1209 */ 1210 typedef struct phyint { 1211 struct ill_s *phyint_illv4; 1212 struct ill_s *phyint_illv6; 1213 uint_t phyint_ifindex; /* SIOCSLIFINDEX */ 1214 uint64_t phyint_flags; 1215 avl_node_t phyint_avl_by_index; /* avl tree by index */ 1216 avl_node_t phyint_avl_by_name; /* avl tree by name */ 1217 kmutex_t phyint_lock; 1218 struct ipsq_s *phyint_ipsq; /* back pointer to ipsq */ 1219 struct ipmp_grp_s *phyint_grp; /* associated IPMP group */ 1220 char phyint_name[LIFNAMSIZ]; /* physical interface name */ 1221 uint64_t phyint_kstats0[IPMP_KSTAT_MAX]; /* baseline kstats */ 1222 } phyint_t; 1223 1224 #define CACHE_ALIGN_SIZE 64 1225 #define CACHE_ALIGN(align_struct) P2ROUNDUP(sizeof (struct align_struct),\ 1226 CACHE_ALIGN_SIZE) 1227 struct _phyint_list_s_ { 1228 avl_tree_t phyint_list_avl_by_index; /* avl tree by index */ 1229 avl_tree_t phyint_list_avl_by_name; /* avl tree by name */ 1230 }; 1231 1232 typedef union phyint_list_u { 1233 struct _phyint_list_s_ phyint_list_s; 1234 char phyint_list_filler[CACHE_ALIGN(_phyint_list_s_)]; 1235 } phyint_list_t; 1236 1237 #define phyint_list_avl_by_index phyint_list_s.phyint_list_avl_by_index 1238 #define phyint_list_avl_by_name phyint_list_s.phyint_list_avl_by_name 1239 1240 /* 1241 * Fragmentation hash bucket 1242 */ 1243 typedef struct ipfb_s { 1244 struct ipf_s *ipfb_ipf; /* List of ... */ 1245 size_t ipfb_count; /* Count of bytes used by frag(s) */ 1246 kmutex_t ipfb_lock; /* Protect all ipf in list */ 1247 uint_t ipfb_frag_pkts; /* num of distinct fragmented pkts */ 1248 } ipfb_t; 1249 1250 /* 1251 * IRE bucket structure. Usually there is an array of such structures, 1252 * each pointing to a linked list of ires. irb_refcnt counts the number 1253 * of walkers of a given hash bucket. Usually the reference count is 1254 * bumped up if the walker wants no IRES to be DELETED while walking the 1255 * list. Bumping up does not PREVENT ADDITION. This allows walking a given 1256 * hash bucket without stumbling up on a free pointer. 1257 * 1258 * irb_t structures in ip_ftable are dynamically allocated and freed. 1259 * In order to identify the irb_t structures that can be safely kmem_free'd 1260 * we need to ensure that 1261 * - the irb_refcnt is quiescent, indicating no other walkers, 1262 * - no other threads or ire's are holding references to the irb, 1263 * i.e., irb_nire == 0, 1264 * - there are no active ire's in the bucket, i.e., irb_ire_cnt == 0 1265 */ 1266 typedef struct irb { 1267 struct ire_s *irb_ire; /* First ire in this bucket */ 1268 /* Should be first in this struct */ 1269 krwlock_t irb_lock; /* Protect this bucket */ 1270 uint_t irb_refcnt; /* Protected by irb_lock */ 1271 uchar_t irb_marks; /* CONDEMNED ires in this bucket ? */ 1272 #define IRB_MARK_CONDEMNED 0x0001 /* Contains some IRE_IS_CONDEMNED */ 1273 #define IRB_MARK_DYNAMIC 0x0002 /* Dynamically allocated */ 1274 /* Once IPv6 uses radix then IRB_MARK_DYNAMIC will be always be set */ 1275 uint_t irb_ire_cnt; /* Num of active IRE in this bucket */ 1276 int irb_nire; /* Num of ftable ire's that ref irb */ 1277 ip_stack_t *irb_ipst; /* Does not have a netstack_hold */ 1278 } irb_t; 1279 1280 /* 1281 * This is the structure used to store the multicast physical addresses 1282 * that an interface has joined. 1283 * The refcnt keeps track of the number of multicast IP addresses mapping 1284 * to a physical multicast address. 1285 */ 1286 typedef struct multiphysaddr_s { 1287 struct multiphysaddr_s *mpa_next; 1288 char mpa_addr[IP_MAX_HW_LEN]; 1289 int mpa_refcnt; 1290 } multiphysaddr_t; 1291 1292 #define IRB2RT(irb) (rt_t *)((caddr_t)(irb) - offsetof(rt_t, rt_irb)) 1293 1294 /* Forward declarations */ 1295 struct dce_s; 1296 typedef struct dce_s dce_t; 1297 struct ire_s; 1298 typedef struct ire_s ire_t; 1299 struct ncec_s; 1300 typedef struct ncec_s ncec_t; 1301 struct nce_s; 1302 typedef struct nce_s nce_t; 1303 struct ip_recv_attr_s; 1304 typedef struct ip_recv_attr_s ip_recv_attr_t; 1305 struct ip_xmit_attr_s; 1306 typedef struct ip_xmit_attr_s ip_xmit_attr_t; 1307 1308 struct tsol_ire_gw_secattr_s; 1309 typedef struct tsol_ire_gw_secattr_s tsol_ire_gw_secattr_t; 1310 1311 /* 1312 * This is a structure for a one-element route cache that is passed 1313 * by reference between ip_input and ill_inputfn. 1314 */ 1315 typedef struct { 1316 ire_t *rtc_ire; 1317 ipaddr_t rtc_ipaddr; 1318 in6_addr_t rtc_ip6addr; 1319 } rtc_t; 1320 1321 /* 1322 * Note: Temporarily use 64 bits, and will probably go back to 32 bits after 1323 * more cleanup work is done. 1324 */ 1325 typedef uint64_t iaflags_t; 1326 1327 /* The ill input function pointer type */ 1328 typedef void (*pfillinput_t)(mblk_t *, void *, void *, ip_recv_attr_t *, 1329 rtc_t *); 1330 1331 /* The ire receive function pointer type */ 1332 typedef void (*pfirerecv_t)(ire_t *, mblk_t *, void *, ip_recv_attr_t *); 1333 1334 /* The ire send and postfrag function pointer types */ 1335 typedef int (*pfiresend_t)(ire_t *, mblk_t *, void *, 1336 ip_xmit_attr_t *, uint32_t *); 1337 typedef int (*pfirepostfrag_t)(mblk_t *, nce_t *, iaflags_t, uint_t, uint32_t, 1338 zoneid_t, zoneid_t, uintptr_t *); 1339 1340 1341 #define IP_V4_G_HEAD 0 1342 #define IP_V6_G_HEAD 1 1343 1344 #define MAX_G_HEADS 2 1345 1346 /* 1347 * unpadded ill_if structure 1348 */ 1349 struct _ill_if_s_ { 1350 union ill_if_u *illif_next; 1351 union ill_if_u *illif_prev; 1352 avl_tree_t illif_avl_by_ppa; /* AVL tree sorted on ppa */ 1353 vmem_t *illif_ppa_arena; /* ppa index space */ 1354 uint16_t illif_mcast_v1; /* hints for */ 1355 uint16_t illif_mcast_v2; /* [igmp|mld]_slowtimo */ 1356 int illif_name_len; /* name length */ 1357 char illif_name[LIFNAMSIZ]; /* name of interface type */ 1358 }; 1359 1360 /* cache aligned ill_if structure */ 1361 typedef union ill_if_u { 1362 struct _ill_if_s_ ill_if_s; 1363 char illif_filler[CACHE_ALIGN(_ill_if_s_)]; 1364 } ill_if_t; 1365 1366 #define illif_next ill_if_s.illif_next 1367 #define illif_prev ill_if_s.illif_prev 1368 #define illif_avl_by_ppa ill_if_s.illif_avl_by_ppa 1369 #define illif_ppa_arena ill_if_s.illif_ppa_arena 1370 #define illif_mcast_v1 ill_if_s.illif_mcast_v1 1371 #define illif_mcast_v2 ill_if_s.illif_mcast_v2 1372 #define illif_name ill_if_s.illif_name 1373 #define illif_name_len ill_if_s.illif_name_len 1374 1375 typedef struct ill_walk_context_s { 1376 int ctx_current_list; /* current list being searched */ 1377 int ctx_last_list; /* last list to search */ 1378 } ill_walk_context_t; 1379 1380 /* 1381 * ill_g_heads structure, one for IPV4 and one for IPV6 1382 */ 1383 struct _ill_g_head_s_ { 1384 ill_if_t *ill_g_list_head; 1385 ill_if_t *ill_g_list_tail; 1386 }; 1387 1388 typedef union ill_g_head_u { 1389 struct _ill_g_head_s_ ill_g_head_s; 1390 char ill_g_head_filler[CACHE_ALIGN(_ill_g_head_s_)]; 1391 } ill_g_head_t; 1392 1393 #define ill_g_list_head ill_g_head_s.ill_g_list_head 1394 #define ill_g_list_tail ill_g_head_s.ill_g_list_tail 1395 1396 #define IP_V4_ILL_G_LIST(ipst) \ 1397 (ipst)->ips_ill_g_heads[IP_V4_G_HEAD].ill_g_list_head 1398 #define IP_V6_ILL_G_LIST(ipst) \ 1399 (ipst)->ips_ill_g_heads[IP_V6_G_HEAD].ill_g_list_head 1400 #define IP_VX_ILL_G_LIST(i, ipst) \ 1401 (ipst)->ips_ill_g_heads[i].ill_g_list_head 1402 1403 #define ILL_START_WALK_V4(ctx_ptr, ipst) \ 1404 ill_first(IP_V4_G_HEAD, IP_V4_G_HEAD, ctx_ptr, ipst) 1405 #define ILL_START_WALK_V6(ctx_ptr, ipst) \ 1406 ill_first(IP_V6_G_HEAD, IP_V6_G_HEAD, ctx_ptr, ipst) 1407 #define ILL_START_WALK_ALL(ctx_ptr, ipst) \ 1408 ill_first(MAX_G_HEADS, MAX_G_HEADS, ctx_ptr, ipst) 1409 1410 /* 1411 * Capabilities, possible flags for ill_capabilities. 1412 */ 1413 #define ILL_CAPAB_LSO 0x04 /* Large Send Offload */ 1414 #define ILL_CAPAB_HCKSUM 0x08 /* Hardware checksumming */ 1415 #define ILL_CAPAB_ZEROCOPY 0x10 /* Zero-copy */ 1416 #define ILL_CAPAB_DLD 0x20 /* DLD capabilities */ 1417 #define ILL_CAPAB_DLD_POLL 0x40 /* Polling */ 1418 #define ILL_CAPAB_DLD_DIRECT 0x80 /* Direct function call */ 1419 1420 /* 1421 * Per-ill Hardware Checksumming capbilities. 1422 */ 1423 typedef struct ill_hcksum_capab_s ill_hcksum_capab_t; 1424 1425 /* 1426 * Per-ill Zero-copy capabilities. 1427 */ 1428 typedef struct ill_zerocopy_capab_s ill_zerocopy_capab_t; 1429 1430 /* 1431 * DLD capbilities. 1432 */ 1433 typedef struct ill_dld_capab_s ill_dld_capab_t; 1434 1435 /* 1436 * Per-ill polling resource map. 1437 */ 1438 typedef struct ill_rx_ring ill_rx_ring_t; 1439 1440 /* 1441 * Per-ill Large Send Offload capabilities. 1442 */ 1443 typedef struct ill_lso_capab_s ill_lso_capab_t; 1444 1445 /* The following are ill_state_flags */ 1446 #define ILL_LL_SUBNET_PENDING 0x01 /* Waiting for DL_INFO_ACK from drv */ 1447 #define ILL_CONDEMNED 0x02 /* No more new ref's to the ILL */ 1448 #define ILL_DL_UNBIND_IN_PROGRESS 0x04 /* UNBIND_REQ is sent */ 1449 /* 1450 * ILL_DOWN_IN_PROGRESS is set to ensure the following: 1451 * - no packets are sent to the driver after the DL_UNBIND_REQ is sent, 1452 * - no longstanding references will be acquired on objects that are being 1453 * brought down. 1454 */ 1455 #define ILL_DOWN_IN_PROGRESS 0x08 1456 1457 /* Is this an ILL whose source address is used by other ILL's ? */ 1458 #define IS_USESRC_ILL(ill) \ 1459 (((ill)->ill_usesrc_ifindex == 0) && \ 1460 ((ill)->ill_usesrc_grp_next != NULL)) 1461 1462 /* Is this a client/consumer of the usesrc ILL ? */ 1463 #define IS_USESRC_CLI_ILL(ill) \ 1464 (((ill)->ill_usesrc_ifindex != 0) && \ 1465 ((ill)->ill_usesrc_grp_next != NULL)) 1466 1467 /* Is this an virtual network interface (vni) ILL ? */ 1468 #define IS_VNI(ill) \ 1469 (((ill)->ill_phyint->phyint_flags & (PHYI_LOOPBACK|PHYI_VIRTUAL)) == \ 1470 PHYI_VIRTUAL) 1471 1472 /* Is this a loopback ILL? */ 1473 #define IS_LOOPBACK(ill) \ 1474 ((ill)->ill_phyint->phyint_flags & PHYI_LOOPBACK) 1475 1476 /* Is this an IPMP meta-interface ILL? */ 1477 #define IS_IPMP(ill) \ 1478 ((ill)->ill_phyint->phyint_flags & PHYI_IPMP) 1479 1480 /* Is this ILL under an IPMP meta-interface? (aka "in a group?") */ 1481 #define IS_UNDER_IPMP(ill) \ 1482 ((ill)->ill_grp != NULL && !IS_IPMP(ill)) 1483 1484 /* Is ill1 in the same illgrp as ill2? */ 1485 #define IS_IN_SAME_ILLGRP(ill1, ill2) \ 1486 ((ill1)->ill_grp != NULL && ((ill1)->ill_grp == (ill2)->ill_grp)) 1487 1488 /* Is ill1 on the same LAN as ill2? */ 1489 #define IS_ON_SAME_LAN(ill1, ill2) \ 1490 ((ill1) == (ill2) || IS_IN_SAME_ILLGRP(ill1, ill2)) 1491 1492 #define ILL_OTHER(ill) \ 1493 ((ill)->ill_isv6 ? (ill)->ill_phyint->phyint_illv4 : \ 1494 (ill)->ill_phyint->phyint_illv6) 1495 1496 /* 1497 * IPMP group ILL state structure -- up to two per IPMP group (V4 and V6). 1498 * Created when the V4 and/or V6 IPMP meta-interface is I_PLINK'd. It is 1499 * guaranteed to persist while there are interfaces of that type in the group. 1500 * In general, most fields are accessed outside of the IPSQ (e.g., in the 1501 * datapath), and thus use locks in addition to the IPSQ for protection. 1502 * 1503 * synchronization: read write 1504 * 1505 * ig_if ipsq or ill_g_lock ipsq and ill_g_lock 1506 * ig_actif ipsq or ipmp_lock ipsq and ipmp_lock 1507 * ig_nactif ipsq or ipmp_lock ipsq and ipmp_lock 1508 * ig_next_ill ipsq or ipmp_lock ipsq and ipmp_lock 1509 * ig_ipmp_ill write once write once 1510 * ig_cast_ill ipsq or ipmp_lock ipsq and ipmp_lock 1511 * ig_arpent ipsq ipsq 1512 * ig_mtu ipsq ipsq 1513 * ig_mc_mtu ipsq ipsq 1514 */ 1515 typedef struct ipmp_illgrp_s { 1516 list_t ig_if; /* list of all interfaces */ 1517 list_t ig_actif; /* list of active interfaces */ 1518 uint_t ig_nactif; /* number of active interfaces */ 1519 struct ill_s *ig_next_ill; /* next active interface to use */ 1520 struct ill_s *ig_ipmp_ill; /* backpointer to IPMP meta-interface */ 1521 struct ill_s *ig_cast_ill; /* nominated ill for multi/broadcast */ 1522 list_t ig_arpent; /* list of ARP entries */ 1523 uint_t ig_mtu; /* ig_ipmp_ill->ill_mtu */ 1524 uint_t ig_mc_mtu; /* ig_ipmp_ill->ill_mc_mtu */ 1525 } ipmp_illgrp_t; 1526 1527 /* 1528 * IPMP group state structure -- one per IPMP group. Created when the 1529 * IPMP meta-interface is plumbed; it is guaranteed to persist while there 1530 * are interfaces in it. 1531 * 1532 * ipmp_grp_t synchronization: read write 1533 * 1534 * gr_name ipmp_lock ipmp_lock 1535 * gr_ifname write once write once 1536 * gr_mactype ipmp_lock ipmp_lock 1537 * gr_phyint write once write once 1538 * gr_nif ipmp_lock ipmp_lock 1539 * gr_nactif ipsq ipsq 1540 * gr_v4 ipmp_lock ipmp_lock 1541 * gr_v6 ipmp_lock ipmp_lock 1542 * gr_nv4 ipmp_lock ipmp_lock 1543 * gr_nv6 ipmp_lock ipmp_lock 1544 * gr_pendv4 ipmp_lock ipmp_lock 1545 * gr_pendv6 ipmp_lock ipmp_lock 1546 * gr_linkdownmp ipsq ipsq 1547 * gr_ksp ipmp_lock ipmp_lock 1548 * gr_kstats0 atomic atomic 1549 */ 1550 typedef struct ipmp_grp_s { 1551 char gr_name[LIFGRNAMSIZ]; /* group name */ 1552 char gr_ifname[LIFNAMSIZ]; /* interface name */ 1553 t_uscalar_t gr_mactype; /* DLPI mactype of group */ 1554 phyint_t *gr_phyint; /* IPMP group phyint */ 1555 uint_t gr_nif; /* number of interfaces in group */ 1556 uint_t gr_nactif; /* number of active interfaces */ 1557 ipmp_illgrp_t *gr_v4; /* V4 group information */ 1558 ipmp_illgrp_t *gr_v6; /* V6 group information */ 1559 uint_t gr_nv4; /* number of ills in V4 group */ 1560 uint_t gr_nv6; /* number of ills in V6 group */ 1561 uint_t gr_pendv4; /* number of pending ills in V4 group */ 1562 uint_t gr_pendv6; /* number of pending ills in V6 group */ 1563 mblk_t *gr_linkdownmp; /* message used to bring link down */ 1564 kstat_t *gr_ksp; /* group kstat pointer */ 1565 uint64_t gr_kstats0[IPMP_KSTAT_MAX]; /* baseline group kstats */ 1566 } ipmp_grp_t; 1567 1568 /* 1569 * IPMP ARP entry -- one per SIOCS*ARP entry tied to the group. Used to keep 1570 * ARP up-to-date as the active set of interfaces in the group changes. 1571 */ 1572 typedef struct ipmp_arpent_s { 1573 ipaddr_t ia_ipaddr; /* IP address for this entry */ 1574 boolean_t ia_proxyarp; /* proxy ARP entry? */ 1575 boolean_t ia_notified; /* ARP notified about this entry? */ 1576 list_node_t ia_node; /* next ARP entry in list */ 1577 uint16_t ia_flags; /* nce_flags for the address */ 1578 size_t ia_lladdr_len; 1579 uchar_t *ia_lladdr; 1580 } ipmp_arpent_t; 1581 1582 struct arl_s; 1583 1584 /* 1585 * Per-ill capabilities. 1586 */ 1587 struct ill_hcksum_capab_s { 1588 uint_t ill_hcksum_version; /* interface version */ 1589 uint_t ill_hcksum_txflags; /* capabilities on transmit */ 1590 }; 1591 1592 struct ill_zerocopy_capab_s { 1593 uint_t ill_zerocopy_version; /* interface version */ 1594 uint_t ill_zerocopy_flags; /* capabilities */ 1595 }; 1596 1597 struct ill_lso_capab_s { 1598 uint_t ill_lso_flags; /* capabilities */ 1599 uint_t ill_lso_max_tcpv4; /* maximum size of payload */ 1600 uint_t ill_lso_max_tcpv6; /* maximum size of payload */ 1601 }; 1602 1603 /* 1604 * IP Lower level Structure. 1605 * Instance data structure in ip_open when there is a device below us. 1606 */ 1607 typedef struct ill_s { 1608 pfillinput_t ill_inputfn; /* Fast input function selector */ 1609 ill_if_t *ill_ifptr; /* pointer to interface type */ 1610 queue_t *ill_rq; /* Read queue. */ 1611 queue_t *ill_wq; /* Write queue. */ 1612 1613 int ill_error; /* Error value sent up by device. */ 1614 1615 ipif_t *ill_ipif; /* Interface chain for this ILL. */ 1616 1617 uint_t ill_ipif_up_count; /* Number of IPIFs currently up. */ 1618 uint_t ill_max_frag; /* Max IDU from DLPI. */ 1619 uint_t ill_current_frag; /* Current IDU from DLPI. */ 1620 uint_t ill_mtu; /* User-specified MTU; SIOCSLIFMTU */ 1621 uint_t ill_mc_mtu; /* MTU for multi/broadcast */ 1622 uint_t ill_metric; /* BSD if metric, for compatibility. */ 1623 char *ill_name; /* Our name. */ 1624 uint_t ill_ipif_dup_count; /* Number of duplicate addresses. */ 1625 uint_t ill_name_length; /* Name length, incl. terminator. */ 1626 uint_t ill_net_type; /* IRE_IF_RESOLVER/IRE_IF_NORESOLVER. */ 1627 /* 1628 * Physical Point of Attachment num. If DLPI style 1 provider 1629 * then this is derived from the devname. 1630 */ 1631 uint_t ill_ppa; 1632 t_uscalar_t ill_sap; 1633 t_scalar_t ill_sap_length; /* Including sign (for position) */ 1634 uint_t ill_phys_addr_length; /* Excluding the sap. */ 1635 uint_t ill_bcast_addr_length; /* Only set when the DL provider */ 1636 /* supports broadcast. */ 1637 t_uscalar_t ill_mactype; 1638 uint8_t *ill_frag_ptr; /* Reassembly state. */ 1639 timeout_id_t ill_frag_timer_id; /* timeout id for the frag timer */ 1640 ipfb_t *ill_frag_hash_tbl; /* Fragment hash list head. */ 1641 1642 krwlock_t ill_mcast_lock; /* Protects multicast state */ 1643 kmutex_t ill_mcast_serializer; /* Serialize across ilg and ilm state */ 1644 ilm_t *ill_ilm; /* Multicast membership for ill */ 1645 uint_t ill_global_timer; /* for IGMPv3/MLDv2 general queries */ 1646 int ill_mcast_type; /* type of router which is querier */ 1647 /* on this interface */ 1648 uint16_t ill_mcast_v1_time; /* # slow timeouts since last v1 qry */ 1649 uint16_t ill_mcast_v2_time; /* # slow timeouts since last v2 qry */ 1650 uint8_t ill_mcast_v1_tset; /* 1 => timer is set; 0 => not set */ 1651 uint8_t ill_mcast_v2_tset; /* 1 => timer is set; 0 => not set */ 1652 1653 uint8_t ill_mcast_rv; /* IGMPv3/MLDv2 robustness variable */ 1654 int ill_mcast_qi; /* IGMPv3/MLDv2 query interval var */ 1655 1656 /* 1657 * All non-NULL cells between 'ill_first_mp_to_free' and 1658 * 'ill_last_mp_to_free' are freed in ill_delete. 1659 */ 1660 #define ill_first_mp_to_free ill_bcast_mp 1661 mblk_t *ill_bcast_mp; /* DLPI header for broadcasts. */ 1662 mblk_t *ill_unbind_mp; /* unbind mp from ill_dl_up() */ 1663 mblk_t *ill_promiscoff_mp; /* for ill_leave_allmulti() */ 1664 mblk_t *ill_dlpi_deferred; /* b_next chain of control messages */ 1665 mblk_t *ill_dest_addr_mp; /* mblk which holds ill_dest_addr */ 1666 mblk_t *ill_replumb_mp; /* replumb mp from ill_replumb() */ 1667 mblk_t *ill_phys_addr_mp; /* mblk which holds ill_phys_addr */ 1668 mblk_t *ill_mcast_deferred; /* b_next chain of IGMP/MLD packets */ 1669 #define ill_last_mp_to_free ill_mcast_deferred 1670 1671 cred_t *ill_credp; /* opener's credentials */ 1672 uint8_t *ill_phys_addr; /* ill_phys_addr_mp->b_rptr + off */ 1673 uint8_t *ill_dest_addr; /* ill_dest_addr_mp->b_rptr + off */ 1674 1675 uint_t ill_state_flags; /* see ILL_* flags above */ 1676 1677 /* Following bit fields protected by ipsq_t */ 1678 uint_t 1679 ill_needs_attach : 1, 1680 ill_reserved : 1, 1681 ill_isv6 : 1, 1682 ill_dlpi_style_set : 1, 1683 1684 ill_ifname_pending : 1, 1685 ill_logical_down : 1, 1686 ill_dl_up : 1, 1687 ill_up_ipifs : 1, 1688 1689 ill_note_link : 1, /* supports link-up notification */ 1690 ill_capab_reneg : 1, /* capability renegotiation to be done */ 1691 ill_dld_capab_inprog : 1, /* direct dld capab call in prog */ 1692 ill_need_recover_multicast : 1, 1693 1694 ill_replumbing : 1, 1695 ill_arl_dlpi_pending : 1, 1696 ill_grp_pending : 1, 1697 1698 ill_pad_to_bit_31 : 17; 1699 1700 /* Following bit fields protected by ill_lock */ 1701 uint_t 1702 ill_fragtimer_executing : 1, 1703 ill_fragtimer_needrestart : 1, 1704 ill_manual_token : 1, /* system won't override ill_token */ 1705 /* 1706 * ill_manual_linklocal : system will not change the 1707 * linklocal whenever ill_token changes. 1708 */ 1709 ill_manual_linklocal : 1, 1710 1711 ill_manual_dst_linklocal : 1, /* same for pt-pt dst linklocal */ 1712 1713 ill_mcast_ncec_cleanup : 1, /* Reaping mcast ncecs. */ 1714 ill_pad_bit_31 : 26; 1715 1716 /* 1717 * Used in SIOCSIFMUXID and SIOCGIFMUXID for 'ifconfig unplumb'. 1718 */ 1719 int ill_muxid; /* muxid returned from plink */ 1720 1721 /* Used for IP frag reassembly throttling on a per ILL basis. */ 1722 uint_t ill_ipf_gen; /* Generation of next fragment queue */ 1723 uint_t ill_frag_count; /* Count of all reassembly mblk bytes */ 1724 uint_t ill_frag_free_num_pkts; /* num of fragmented packets to free */ 1725 clock_t ill_last_frag_clean_time; /* time when frag's were pruned */ 1726 int ill_type; /* From <net/if_types.h> */ 1727 uint_t ill_dlpi_multicast_state; /* See below IDS_* */ 1728 uint_t ill_dlpi_fastpath_state; /* See below IDS_* */ 1729 1730 /* 1731 * Capabilities related fields. 1732 */ 1733 uint_t ill_dlpi_capab_state; /* State of capability query, IDCS_* */ 1734 uint_t ill_capab_pending_cnt; 1735 uint64_t ill_capabilities; /* Enabled capabilities, ILL_CAPAB_* */ 1736 ill_hcksum_capab_t *ill_hcksum_capab; /* H/W cksumming capabilities */ 1737 ill_zerocopy_capab_t *ill_zerocopy_capab; /* Zero-copy capabilities */ 1738 ill_dld_capab_t *ill_dld_capab; /* DLD capabilities */ 1739 ill_lso_capab_t *ill_lso_capab; /* Large Segment Offload capabilities */ 1740 mblk_t *ill_capab_reset_mp; /* Preallocated mblk for capab reset */ 1741 1742 uint8_t ill_max_hops; /* Maximum hops for any logical interface */ 1743 uint_t ill_user_mtu; /* User-specified MTU via SIOCSLIFLNKINFO */ 1744 uint32_t ill_reachable_time; /* Value for ND algorithm in msec */ 1745 uint32_t ill_reachable_retrans_time; /* Value for ND algorithm msec */ 1746 uint_t ill_max_buf; /* Max # of req to buffer for ND */ 1747 in6_addr_t ill_token; /* IPv6 interface id */ 1748 in6_addr_t ill_dest_token; /* Destination IPv6 interface id */ 1749 uint_t ill_token_length; 1750 uint32_t ill_xmit_count; /* ndp max multicast xmits */ 1751 mib2_ipIfStatsEntry_t *ill_ip_mib; /* ver indep. interface mib */ 1752 mib2_ipv6IfIcmpEntry_t *ill_icmp6_mib; /* Per interface mib */ 1753 1754 phyint_t *ill_phyint; 1755 uint64_t ill_flags; 1756 1757 kmutex_t ill_lock; /* Please see table below */ 1758 /* 1759 * The ill_nd_lla* fields handle the link layer address option 1760 * from neighbor discovery. This is used for external IPv6 1761 * address resolution. 1762 */ 1763 mblk_t *ill_nd_lla_mp; /* mblk which holds ill_nd_lla */ 1764 uint8_t *ill_nd_lla; /* Link Layer Address */ 1765 uint_t ill_nd_lla_len; /* Link Layer Address length */ 1766 /* 1767 * We have 4 phys_addr_req's sent down. This field keeps track 1768 * of which one is pending. 1769 */ 1770 t_uscalar_t ill_phys_addr_pend; /* which dl_phys_addr_req pending */ 1771 /* 1772 * Used to save errors that occur during plumbing 1773 */ 1774 uint_t ill_ifname_pending_err; 1775 avl_node_t ill_avl_byppa; /* avl node based on ppa */ 1776 uint_t ill_mcast_nces; /* Number of NCEs that are multicast. */ 1777 list_t ill_nce; /* pointer to nce_s list */ 1778 uint_t ill_refcnt; /* active refcnt by threads */ 1779 uint_t ill_ire_cnt; /* ires associated with this ill */ 1780 kcondvar_t ill_cv; 1781 uint_t ill_ncec_cnt; /* ncecs associated with this ill */ 1782 uint_t ill_nce_cnt; /* nces associated with this ill */ 1783 uint_t ill_waiters; /* threads waiting in ipsq_enter */ 1784 /* 1785 * Contains the upper read queue pointer of the module immediately 1786 * beneath IP. This field allows IP to validate sub-capability 1787 * acknowledgments coming up from downstream. 1788 */ 1789 queue_t *ill_lmod_rq; /* read queue pointer of module below */ 1790 uint_t ill_lmod_cnt; /* number of modules beneath IP */ 1791 ip_m_t *ill_media; /* media specific params/functions */ 1792 t_uscalar_t ill_dlpi_pending; /* Last DLPI primitive issued */ 1793 uint_t ill_usesrc_ifindex; /* use src addr from this ILL */ 1794 struct ill_s *ill_usesrc_grp_next; /* Next ILL in the usesrc group */ 1795 boolean_t ill_trace_disable; /* True when alloc fails */ 1796 zoneid_t ill_zoneid; 1797 ip_stack_t *ill_ipst; /* Corresponds to a netstack_hold */ 1798 uint32_t ill_dhcpinit; /* IP_DHCPINIT_IFs for ill */ 1799 void *ill_flownotify_mh; /* Tx flow ctl, mac cb handle */ 1800 uint_t ill_ilm_cnt; /* ilms referencing this ill */ 1801 uint_t ill_ipallmulti_cnt; /* ip_join_allmulti() calls */ 1802 ilm_t *ill_ipallmulti_ilm; 1803 1804 mblk_t *ill_saved_ire_mp; /* Allocated for each extra IRE */ 1805 /* with ire_ill set so they can */ 1806 /* survive the ill going down and up. */ 1807 kmutex_t ill_saved_ire_lock; /* Protects ill_saved_ire_mp, cnt */ 1808 uint_t ill_saved_ire_cnt; /* # entries */ 1809 struct arl_ill_common_s *ill_common; 1810 ire_t *ill_ire_multicast; /* IRE_MULTICAST for ill */ 1811 clock_t ill_defend_start; /* start of 1 hour period */ 1812 uint_t ill_defend_count; /* # of announce/defends per ill */ 1813 /* 1814 * IPMP fields. 1815 */ 1816 ipmp_illgrp_t *ill_grp; /* IPMP group information */ 1817 list_node_t ill_actnode; /* next active ill in group */ 1818 list_node_t ill_grpnode; /* next ill in group */ 1819 ipif_t *ill_src_ipif; /* source address selection rotor */ 1820 ipif_t *ill_move_ipif; /* ipif awaiting move to new ill */ 1821 boolean_t ill_nom_cast; /* nominated for mcast/bcast */ 1822 uint_t ill_bound_cnt; /* # of data addresses bound to ill */ 1823 ipif_t *ill_bound_ipif; /* ipif chain bound to ill */ 1824 timeout_id_t ill_refresh_tid; /* ill refresh retry timeout id */ 1825 1826 uint32_t ill_mrouter_cnt; /* mrouter allmulti joins */ 1827 uint32_t ill_allowed_ips_cnt; 1828 in6_addr_t *ill_allowed_ips; 1829 1830 /* list of multicast physical addresses joined on this ill */ 1831 multiphysaddr_t *ill_mphysaddr_list; 1832 } ill_t; 1833 1834 /* 1835 * ILL_FREE_OK() means that there are no incoming pointer references 1836 * to the ill. 1837 */ 1838 #define ILL_FREE_OK(ill) \ 1839 ((ill)->ill_ire_cnt == 0 && (ill)->ill_ilm_cnt == 0 && \ 1840 (ill)->ill_ncec_cnt == 0 && (ill)->ill_nce_cnt == 0) 1841 1842 /* 1843 * An ipif/ill can be marked down only when the ire and ncec references 1844 * to that ipif/ill goes to zero. ILL_DOWN_OK() is a necessary condition 1845 * quiescence checks. See comments above IPIF_DOWN_OK for details 1846 * on why ires and nces are selectively considered for this macro. 1847 */ 1848 #define ILL_DOWN_OK(ill) \ 1849 (ill->ill_ire_cnt == 0 && ill->ill_ncec_cnt == 0 && \ 1850 ill->ill_nce_cnt == 0) 1851 1852 /* 1853 * The following table lists the protection levels of the various members 1854 * of the ill_t. Same notation as that used for ipif_t above is used. 1855 * 1856 * Write Read 1857 * 1858 * ill_ifptr ill_g_lock + s Write once 1859 * ill_rq ipsq Write once 1860 * ill_wq ipsq Write once 1861 * 1862 * ill_error ipsq None 1863 * ill_ipif ill_g_lock + ipsq ill_g_lock OR ipsq 1864 * ill_ipif_up_count ill_lock + ipsq ill_lock OR ipsq 1865 * ill_max_frag ill_lock ill_lock 1866 * ill_current_frag ill_lock ill_lock 1867 * 1868 * ill_name ill_g_lock + ipsq Write once 1869 * ill_name_length ill_g_lock + ipsq Write once 1870 * ill_ndd_name ipsq Write once 1871 * ill_net_type ipsq Write once 1872 * ill_ppa ill_g_lock + ipsq Write once 1873 * ill_sap ipsq + down ill Write once 1874 * ill_sap_length ipsq + down ill Write once 1875 * ill_phys_addr_length ipsq + down ill Write once 1876 * 1877 * ill_bcast_addr_length ipsq ipsq 1878 * ill_mactype ipsq ipsq 1879 * ill_frag_ptr ipsq ipsq 1880 * 1881 * ill_frag_timer_id ill_lock ill_lock 1882 * ill_frag_hash_tbl ipsq up ill 1883 * ill_ilm ill_mcast_lock(WRITER) ill_mcast_lock(READER) 1884 * ill_global_timer ill_mcast_lock(WRITER) ill_mcast_lock(READER) 1885 * ill_mcast_type ill_mcast_lock(WRITER) ill_mcast_lock(READER) 1886 * ill_mcast_v1_time ill_mcast_lock(WRITER) ill_mcast_lock(READER) 1887 * ill_mcast_v2_time ill_mcast_lock(WRITER) ill_mcast_lock(READER) 1888 * ill_mcast_v1_tset ill_mcast_lock(WRITER) ill_mcast_lock(READER) 1889 * ill_mcast_v2_tset ill_mcast_lock(WRITER) ill_mcast_lock(READER) 1890 * ill_mcast_rv ill_mcast_lock(WRITER) ill_mcast_lock(READER) 1891 * ill_mcast_qi ill_mcast_lock(WRITER) ill_mcast_lock(READER) 1892 * 1893 * ill_down_mp ipsq ipsq 1894 * ill_dlpi_deferred ill_lock ill_lock 1895 * ill_dlpi_pending ipsq + ill_lock ipsq or ill_lock or 1896 * absence of ipsq writer. 1897 * ill_phys_addr_mp ipsq + down ill only when ill is up 1898 * ill_mcast_deferred ill_lock ill_lock 1899 * ill_phys_addr ipsq + down ill only when ill is up 1900 * ill_dest_addr_mp ipsq + down ill only when ill is up 1901 * ill_dest_addr ipsq + down ill only when ill is up 1902 * 1903 * ill_state_flags ill_lock ill_lock 1904 * exclusive bit flags ipsq_t ipsq_t 1905 * shared bit flags ill_lock ill_lock 1906 * 1907 * ill_muxid ipsq Not atomic 1908 * 1909 * ill_ipf_gen Not atomic 1910 * ill_frag_count atomics atomics 1911 * ill_type ipsq + down ill only when ill is up 1912 * ill_dlpi_multicast_state ill_lock ill_lock 1913 * ill_dlpi_fastpath_state ill_lock ill_lock 1914 * ill_dlpi_capab_state ipsq ipsq 1915 * ill_max_hops ipsq Not atomic 1916 * 1917 * ill_mtu ill_lock None 1918 * ill_mc_mtu ill_lock None 1919 * 1920 * ill_user_mtu ipsq + ill_lock ill_lock 1921 * ill_reachable_time ipsq + ill_lock ill_lock 1922 * ill_reachable_retrans_time ipsq + ill_lock ill_lock 1923 * ill_max_buf ipsq + ill_lock ill_lock 1924 * 1925 * Next 2 fields need ill_lock because of the get ioctls. They should not 1926 * report partially updated results without executing in the ipsq. 1927 * ill_token ipsq + ill_lock ill_lock 1928 * ill_token_length ipsq + ill_lock ill_lock 1929 * ill_dest_token ipsq + down ill only when ill is up 1930 * ill_xmit_count ipsq + down ill write once 1931 * ill_ip6_mib ipsq + down ill only when ill is up 1932 * ill_icmp6_mib ipsq + down ill only when ill is up 1933 * 1934 * ill_phyint ipsq, ill_g_lock, ill_lock Any of them 1935 * ill_flags ill_lock ill_lock 1936 * ill_nd_lla_mp ipsq + down ill only when ill is up 1937 * ill_nd_lla ipsq + down ill only when ill is up 1938 * ill_nd_lla_len ipsq + down ill only when ill is up 1939 * ill_phys_addr_pend ipsq + down ill only when ill is up 1940 * ill_ifname_pending_err ipsq ipsq 1941 * ill_avl_byppa ipsq, ill_g_lock write once 1942 * 1943 * ill_fastpath_list ill_lock ill_lock 1944 * ill_refcnt ill_lock ill_lock 1945 * ill_ire_cnt ill_lock ill_lock 1946 * ill_cv ill_lock ill_lock 1947 * ill_mcast_nces ill_lock ill_lock 1948 * ill_ncec_cnt ill_lock ill_lock 1949 * ill_nce_cnt ill_lock ill_lock 1950 * ill_ilm_cnt ill_lock ill_lock 1951 * ill_src_ipif ill_g_lock ill_g_lock 1952 * ill_trace ill_lock ill_lock 1953 * ill_usesrc_grp_next ill_g_usesrc_lock ill_g_usesrc_lock 1954 * ill_dhcpinit atomics atomics 1955 * ill_flownotify_mh write once write once 1956 * ill_capab_pending_cnt ipsq ipsq 1957 * ill_ipallmulti_cnt ill_lock ill_lock 1958 * ill_ipallmulti_ilm ill_lock ill_lock 1959 * ill_saved_ire_mp ill_saved_ire_lock ill_saved_ire_lock 1960 * ill_saved_ire_cnt ill_saved_ire_lock ill_saved_ire_lock 1961 * ill_arl ??? ??? 1962 * ill_ire_multicast ipsq + quiescent none 1963 * ill_bound_ipif ipsq ipsq 1964 * ill_actnode ipsq + ipmp_lock ipsq OR ipmp_lock 1965 * ill_grpnode ipsq + ill_g_lock ipsq OR ill_g_lock 1966 * ill_src_ipif ill_g_lock ill_g_lock 1967 * ill_move_ipif ipsq ipsq 1968 * ill_nom_cast ipsq ipsq OR advisory 1969 * ill_refresh_tid ill_lock ill_lock 1970 * ill_grp (for IPMP ill) write once write once 1971 * ill_grp (for underlying ill) ipsq + ill_g_lock ipsq OR ill_g_lock 1972 * ill_grp_pending ill_mcast_serializer ill_mcast_serializer 1973 * ill_mrouter_cnt atomics atomics 1974 * ill_mphysaddr_list ill_lock ill_lock 1975 * 1976 * NOTE: It's OK to make heuristic decisions on an underlying interface 1977 * by using IS_UNDER_IPMP() or comparing ill_grp's raw pointer value. 1978 */ 1979 1980 /* 1981 * For ioctl restart mechanism see ip_reprocess_ioctl() 1982 */ 1983 struct ip_ioctl_cmd_s; 1984 1985 typedef int (*ifunc_t)(ipif_t *, struct sockaddr_in *, queue_t *, mblk_t *, 1986 struct ip_ioctl_cmd_s *, void *); 1987 1988 typedef struct ip_ioctl_cmd_s { 1989 int ipi_cmd; 1990 size_t ipi_copyin_size; 1991 uint_t ipi_flags; 1992 uint_t ipi_cmd_type; 1993 ifunc_t ipi_func; 1994 ifunc_t ipi_func_restart; 1995 } ip_ioctl_cmd_t; 1996 1997 /* 1998 * ipi_cmd_type: 1999 * 2000 * IF_CMD 1 old style ifreq cmd 2001 * LIF_CMD 2 new style lifreq cmd 2002 * ARP_CMD 3 arpreq cmd 2003 * XARP_CMD 4 xarpreq cmd 2004 * MSFILT_CMD 5 multicast source filter cmd 2005 * MISC_CMD 6 misc cmd (not a more specific one above) 2006 */ 2007 2008 enum { IF_CMD = 1, LIF_CMD, ARP_CMD, XARP_CMD, MSFILT_CMD, MISC_CMD }; 2009 2010 #define IPI_DONTCARE 0 /* For ioctl encoded values that don't matter */ 2011 2012 /* Flag values in ipi_flags */ 2013 #define IPI_PRIV 0x1 /* Command requires PRIV_SYS_IP_CONFIG */ 2014 #define IPI_MODOK 0x2 /* Permitted on mod instance of IP */ 2015 #define IPI_WR 0x4 /* Need to grab writer access */ 2016 #define IPI_GET_CMD 0x8 /* branch to mi_copyout on success */ 2017 /* unused 0x10 */ 2018 #define IPI_NULL_BCONT 0x20 /* ioctl has not data and hence no b_cont */ 2019 2020 extern ip_ioctl_cmd_t ip_ndx_ioctl_table[]; 2021 extern ip_ioctl_cmd_t ip_misc_ioctl_table[]; 2022 extern int ip_ndx_ioctl_count; 2023 extern int ip_misc_ioctl_count; 2024 2025 /* Passed down by ARP to IP during I_PLINK/I_PUNLINK */ 2026 typedef struct ipmx_s { 2027 char ipmx_name[LIFNAMSIZ]; /* if name */ 2028 uint_t 2029 ipmx_arpdev_stream : 1, /* This is the arp stream */ 2030 ipmx_notused : 31; 2031 } ipmx_t; 2032 2033 /* 2034 * State for detecting if a driver supports certain features. 2035 * Support for DL_ENABMULTI_REQ uses ill_dlpi_multicast_state. 2036 * Support for DLPI M_DATA fastpath uses ill_dlpi_fastpath_state. 2037 */ 2038 #define IDS_UNKNOWN 0 /* No DLPI request sent */ 2039 #define IDS_INPROGRESS 1 /* DLPI request sent */ 2040 #define IDS_OK 2 /* DLPI request completed successfully */ 2041 #define IDS_FAILED 3 /* DLPI request failed */ 2042 2043 /* Support for DL_CAPABILITY_REQ uses ill_dlpi_capab_state. */ 2044 enum { 2045 IDCS_UNKNOWN, 2046 IDCS_PROBE_SENT, 2047 IDCS_OK, 2048 IDCS_RESET_SENT, 2049 IDCS_RENEG, 2050 IDCS_FAILED 2051 }; 2052 2053 /* Extended NDP Management Structure */ 2054 typedef struct ipndp_s { 2055 ndgetf_t ip_ndp_getf; 2056 ndsetf_t ip_ndp_setf; 2057 caddr_t ip_ndp_data; 2058 char *ip_ndp_name; 2059 } ipndp_t; 2060 2061 /* IXA Notification types */ 2062 typedef enum { 2063 IXAN_LSO, /* LSO capability change */ 2064 IXAN_PMTU, /* PMTU change */ 2065 IXAN_ZCOPY /* ZEROCOPY capability change */ 2066 } ixa_notify_type_t; 2067 2068 typedef uint_t ixa_notify_arg_t; 2069 2070 typedef void (*ixa_notify_t)(void *, ip_xmit_attr_t *ixa, ixa_notify_type_t, 2071 ixa_notify_arg_t); 2072 2073 /* 2074 * Attribute flags that are common to the transmit and receive attributes 2075 */ 2076 #define IAF_IS_IPV4 0x80000000 /* ipsec_*_v4 */ 2077 #define IAF_TRUSTED_ICMP 0x40000000 /* ipsec_*_icmp_loopback */ 2078 #define IAF_NO_LOOP_ZONEID_SET 0x20000000 /* Zone that shouldn't have */ 2079 /* a copy */ 2080 #define IAF_LOOPBACK_COPY 0x10000000 /* For multi and broadcast */ 2081 2082 #define IAF_MASK 0xf0000000 /* Flags that are common */ 2083 2084 /* 2085 * Transmit side attributes used between the transport protocols and IP as 2086 * well as inside IP. It is also used to cache information in the conn_t i.e. 2087 * replaces conn_ire and the IPsec caching in the conn_t. 2088 */ 2089 struct ip_xmit_attr_s { 2090 iaflags_t ixa_flags; /* IXAF_*. See below */ 2091 2092 uint32_t ixa_free_flags; /* IXA_FREE_*. See below */ 2093 uint32_t ixa_refcnt; /* Using atomics */ 2094 2095 /* 2096 * Always initialized independently of ixa_flags settings. 2097 * Used by ip_xmit so we keep them up front for cache locality. 2098 */ 2099 uint32_t ixa_xmit_hint; /* For ECMP and GLD TX ring fanout */ 2100 uint_t ixa_pktlen; /* Always set. For frag and stats */ 2101 zoneid_t ixa_zoneid; /* Assumed always set */ 2102 2103 /* Always set for conn_ip_output(); might be stale */ 2104 /* 2105 * Since TCP keeps the conn_t around past the process going away 2106 * we need to use the "notr" (e.g, ire_refhold_notr) for ixa_ire, 2107 * ixa_nce, and ixa_dce. 2108 */ 2109 ire_t *ixa_ire; /* Forwarding table entry */ 2110 uint_t ixa_ire_generation; 2111 nce_t *ixa_nce; /* Neighbor cache entry */ 2112 dce_t *ixa_dce; /* Destination cache entry */ 2113 uint_t ixa_dce_generation; 2114 uint_t ixa_src_generation; /* If IXAF_VERIFY_SOURCE */ 2115 2116 uint32_t ixa_src_preferences; /* prefs for src addr select */ 2117 uint32_t ixa_pmtu; /* IXAF_VERIFY_PMTU */ 2118 2119 /* Set by ULP if IXAF_VERIFY_PMTU; otherwise set by IP */ 2120 uint32_t ixa_fragsize; 2121 2122 int8_t ixa_use_min_mtu; /* IXAF_USE_MIN_MTU values */ 2123 2124 pfirepostfrag_t ixa_postfragfn; /* Set internally in IP */ 2125 2126 in6_addr_t ixa_nexthop_v6; /* IXAF_NEXTHOP_SET */ 2127 #define ixa_nexthop_v4 V4_PART_OF_V6(ixa_nexthop_v6) 2128 2129 zoneid_t ixa_no_loop_zoneid; /* IXAF_NO_LOOP_ZONEID_SET */ 2130 2131 uint_t ixa_scopeid; /* For IPv6 link-locals */ 2132 2133 uint_t ixa_broadcast_ttl; /* IXAF_BROACAST_TTL_SET */ 2134 2135 uint_t ixa_multicast_ttl; /* Assumed set for multicast */ 2136 uint_t ixa_multicast_ifindex; /* Assumed set for multicast */ 2137 ipaddr_t ixa_multicast_ifaddr; /* Assumed set for multicast */ 2138 2139 int ixa_raw_cksum_offset; /* If IXAF_SET_RAW_CKSUM */ 2140 2141 uint32_t ixa_ident; /* For IPv6 fragment header */ 2142 2143 uint64_t ixa_conn_id; /* Used by DTrace */ 2144 /* 2145 * Cached LSO information. 2146 */ 2147 ill_lso_capab_t ixa_lso_capab; /* Valid when IXAF_LSO_CAPAB */ 2148 2149 uint64_t ixa_ipsec_policy_gen; /* Generation from iph_gen */ 2150 /* 2151 * The following IPsec fields are only initialized when 2152 * IXAF_IPSEC_SECURE is set. Otherwise they contain garbage. 2153 */ 2154 ipsec_latch_t *ixa_ipsec_latch; /* Just the ids */ 2155 struct ipsa_s *ixa_ipsec_ah_sa; /* Hard reference SA for AH */ 2156 struct ipsa_s *ixa_ipsec_esp_sa; /* Hard reference SA for ESP */ 2157 struct ipsec_policy_s *ixa_ipsec_policy; /* why are we here? */ 2158 struct ipsec_action_s *ixa_ipsec_action; /* For reflected packets */ 2159 ipsa_ref_t ixa_ipsec_ref[2]; /* Soft reference to SA */ 2160 /* 0: ESP, 1: AH */ 2161 2162 /* 2163 * The selectors here are potentially different than the SPD rule's 2164 * selectors, and we need to have both available for IKEv2. 2165 * 2166 * NOTE: "Source" and "Dest" are w.r.t. outbound datagrams. Ports can 2167 * be zero, and the protocol number is needed to make the ports 2168 * significant. 2169 */ 2170 uint16_t ixa_ipsec_src_port; /* Source port number of d-gram. */ 2171 uint16_t ixa_ipsec_dst_port; /* Destination port number of d-gram. */ 2172 uint8_t ixa_ipsec_icmp_type; /* ICMP type of d-gram */ 2173 uint8_t ixa_ipsec_icmp_code; /* ICMP code of d-gram */ 2174 2175 sa_family_t ixa_ipsec_inaf; /* Inner address family */ 2176 #define IXA_MAX_ADDRLEN 4 /* Max addr len. (in 32-bit words) */ 2177 uint32_t ixa_ipsec_insrc[IXA_MAX_ADDRLEN]; /* Inner src address */ 2178 uint32_t ixa_ipsec_indst[IXA_MAX_ADDRLEN]; /* Inner dest address */ 2179 uint8_t ixa_ipsec_insrcpfx; /* Inner source prefix */ 2180 uint8_t ixa_ipsec_indstpfx; /* Inner destination prefix */ 2181 2182 uint8_t ixa_ipsec_proto; /* IP protocol number for d-gram. */ 2183 2184 /* Always initialized independently of ixa_flags settings */ 2185 uint_t ixa_ifindex; /* Assumed always set */ 2186 uint16_t ixa_ip_hdr_length; /* Points to ULP header */ 2187 uint8_t ixa_protocol; /* Protocol number for ULP cksum */ 2188 ts_label_t *ixa_tsl; /* Always set. NULL if not TX */ 2189 ip_stack_t *ixa_ipst; /* Always set */ 2190 uint32_t ixa_extra_ident; /* Set if LSO */ 2191 cred_t *ixa_cred; /* For getpeerucred */ 2192 pid_t ixa_cpid; /* For getpeerucred */ 2193 2194 #ifdef DEBUG 2195 kthread_t *ixa_curthread; /* For serialization assert */ 2196 #endif 2197 squeue_t *ixa_sqp; /* Set from conn_sqp as a hint */ 2198 uintptr_t ixa_cookie; /* cookie to use for tx flow control */ 2199 2200 /* 2201 * Must be set by ULP if any of IXAF_VERIFY_LSO, IXAF_VERIFY_PMTU, 2202 * or IXAF_VERIFY_ZCOPY is set. 2203 */ 2204 ixa_notify_t ixa_notify; /* Registered upcall notify function */ 2205 void *ixa_notify_cookie; /* ULP cookie for ixa_notify */ 2206 2207 uint_t ixa_tcpcleanup; /* Used by conn_ixa_cleanup */ 2208 }; 2209 2210 /* 2211 * Flags to indicate which transmit attributes are set. 2212 * Split into "xxx_SET" ones which indicate that the "xxx" field it set, and 2213 * single flags. 2214 */ 2215 #define IXAF_REACH_CONF 0x00000001 /* Reachability confirmation */ 2216 #define IXAF_BROADCAST_TTL_SET 0x00000002 /* ixa_broadcast_ttl valid */ 2217 #define IXAF_SET_SOURCE 0x00000004 /* Replace if broadcast */ 2218 #define IXAF_USE_MIN_MTU 0x00000008 /* IPV6_USE_MIN_MTU */ 2219 2220 #define IXAF_DONTFRAG 0x00000010 /* IP*_DONTFRAG */ 2221 #define IXAF_VERIFY_PMTU 0x00000020 /* ixa_pmtu/ixa_fragsize set */ 2222 #define IXAF_PMTU_DISCOVERY 0x00000040 /* Create/use PMTU state */ 2223 #define IXAF_MULTICAST_LOOP 0x00000080 /* IP_MULTICAST_LOOP */ 2224 2225 #define IXAF_IPSEC_SECURE 0x00000100 /* Need IPsec processing */ 2226 #define IXAF_UCRED_TSL 0x00000200 /* ixa_tsl from SCM_UCRED */ 2227 #define IXAF_DONTROUTE 0x00000400 /* SO_DONTROUTE */ 2228 #define IXAF_NO_IPSEC 0x00000800 /* Ignore policy */ 2229 2230 #define IXAF_PMTU_TOO_SMALL 0x00001000 /* PMTU too small */ 2231 #define IXAF_SET_ULP_CKSUM 0x00002000 /* Calculate ULP checksum */ 2232 #define IXAF_VERIFY_SOURCE 0x00004000 /* Check that source is ok */ 2233 #define IXAF_NEXTHOP_SET 0x00008000 /* ixa_nexthop set */ 2234 2235 #define IXAF_PMTU_IPV4_DF 0x00010000 /* Set IPv4 DF */ 2236 #define IXAF_NO_DEV_FLOW_CTL 0x00020000 /* Protocol needs no flow ctl */ 2237 #define IXAF_NO_TTL_CHANGE 0x00040000 /* Internal to IP */ 2238 #define IXAF_IPV6_ADD_FRAGHDR 0x00080000 /* Add fragment header */ 2239 2240 #define IXAF_IPSEC_TUNNEL 0x00100000 /* Tunnel mode */ 2241 #define IXAF_NO_PFHOOK 0x00200000 /* Skip xmit pfhook */ 2242 #define IXAF_NO_TRACE 0x00400000 /* When back from ARP/ND */ 2243 #define IXAF_SCOPEID_SET 0x00800000 /* ixa_scopeid set */ 2244 2245 #define IXAF_MULTIRT_MULTICAST 0x01000000 /* MULTIRT for multicast */ 2246 #define IXAF_NO_HW_CKSUM 0x02000000 /* Force software cksum */ 2247 #define IXAF_SET_RAW_CKSUM 0x04000000 /* Use ixa_raw_cksum_offset */ 2248 #define IXAF_IPSEC_GLOBAL_POLICY 0x08000000 /* Policy came from global */ 2249 2250 /* Note the following uses bits 0x10000000 through 0x80000000 */ 2251 #define IXAF_IS_IPV4 IAF_IS_IPV4 2252 #define IXAF_TRUSTED_ICMP IAF_TRUSTED_ICMP 2253 #define IXAF_NO_LOOP_ZONEID_SET IAF_NO_LOOP_ZONEID_SET 2254 #define IXAF_LOOPBACK_COPY IAF_LOOPBACK_COPY 2255 2256 /* Note: use the upper 32 bits */ 2257 #define IXAF_VERIFY_LSO 0x100000000 /* Check LSO capability */ 2258 #define IXAF_LSO_CAPAB 0x200000000 /* Capable of LSO */ 2259 #define IXAF_VERIFY_ZCOPY 0x400000000 /* Check Zero Copy capability */ 2260 #define IXAF_ZCOPY_CAPAB 0x800000000 /* Capable of ZEROCOPY */ 2261 2262 /* 2263 * The normal flags for sending packets e.g., icmp errors 2264 */ 2265 #define IXAF_BASIC_SIMPLE_V4 \ 2266 (IXAF_SET_ULP_CKSUM | IXAF_IS_IPV4 | IXAF_VERIFY_SOURCE) 2267 #define IXAF_BASIC_SIMPLE_V6 (IXAF_SET_ULP_CKSUM | IXAF_VERIFY_SOURCE) 2268 2269 /* 2270 * Normally these fields do not have a hold. But in some cases they do, for 2271 * instance when we've gone through ip_*_attr_to/from_mblk. 2272 * We use ixa_free_flags to indicate that they have a hold and need to be 2273 * released on cleanup. 2274 */ 2275 #define IXA_FREE_CRED 0x00000001 /* ixa_cred needs to be rele */ 2276 #define IXA_FREE_TSL 0x00000002 /* ixa_tsl needs to be rele */ 2277 2278 /* 2279 * Trivial state machine used to synchronize IXA cleanup for TCP connections. 2280 * See conn_ixa_cleanup(). 2281 */ 2282 #define IXATC_IDLE 0x00000000 2283 #define IXATC_INPROGRESS 0x00000001 2284 #define IXATC_COMPLETE 0x00000002 2285 2286 /* 2287 * Simplistic way to set the ixa_xmit_hint for locally generated traffic 2288 * and forwarded traffic. The shift amount are based on the size of the 2289 * structs to discard the low order bits which don't have much if any variation 2290 * (coloring in kmem_cache_alloc might provide some variation). 2291 * 2292 * Basing the locally generated hint on the address of the conn_t means that 2293 * the packets from the same socket/connection do not get reordered. 2294 * Basing the hint for forwarded traffic on the ill_ring_t means that 2295 * packets from the same NIC+ring are likely to use the same outbound ring 2296 * hence we get low contention on the ring in the transmitting driver. 2297 */ 2298 #define CONN_TO_XMIT_HINT(connp) ((uint32_t)(((uintptr_t)connp) >> 11)) 2299 #define ILL_RING_TO_XMIT_HINT(ring) ((uint32_t)(((uintptr_t)ring) >> 7)) 2300 2301 /* 2302 * IP set Destination Flags used by function ip_set_destination, 2303 * ip_attr_connect, and conn_connect. 2304 */ 2305 #define IPDF_ALLOW_MCBC 0x1 /* Allow multi/broadcast */ 2306 #define IPDF_VERIFY_DST 0x2 /* Verify destination addr */ 2307 #define IPDF_SELECT_SRC 0x4 /* Select source address */ 2308 #define IPDF_LSO 0x8 /* Try LSO */ 2309 #define IPDF_IPSEC 0x10 /* Set IPsec policy */ 2310 #define IPDF_ZONE_IS_GLOBAL 0x20 /* From conn_zone_is_global */ 2311 #define IPDF_ZCOPY 0x40 /* Try ZEROCOPY */ 2312 #define IPDF_UNIQUE_DCE 0x80 /* Get a per-destination DCE */ 2313 2314 /* 2315 * Receive side attributes used between the transport protocols and IP as 2316 * well as inside IP. 2317 */ 2318 struct ip_recv_attr_s { 2319 iaflags_t ira_flags; /* See below */ 2320 2321 uint32_t ira_free_flags; /* IRA_FREE_*. See below */ 2322 2323 /* 2324 * This is a hint for TCP SYN packets. 2325 * Always initialized independently of ira_flags settings 2326 */ 2327 squeue_t *ira_sqp; 2328 ill_rx_ring_t *ira_ring; /* Internal to IP */ 2329 2330 /* For ip_accept_tcp when IRAF_TARGET_SQP is set */ 2331 squeue_t *ira_target_sqp; 2332 mblk_t *ira_target_sqp_mp; 2333 2334 /* Always initialized independently of ira_flags settings */ 2335 uint32_t ira_xmit_hint; /* For ECMP and GLD TX ring fanout */ 2336 zoneid_t ira_zoneid; /* ALL_ZONES unless local delivery */ 2337 uint_t ira_pktlen; /* Always set. For frag and stats */ 2338 uint16_t ira_ip_hdr_length; /* Points to ULP header */ 2339 uint8_t ira_protocol; /* Protocol number for ULP cksum */ 2340 uint8_t ira_ttl; /* IP TTL / IPv6 Hop Count */ 2341 uint_t ira_rifindex; /* Received ifindex */ 2342 uint_t ira_ruifindex; /* Received upper ifindex */ 2343 ts_label_t *ira_tsl; /* Always set. NULL if not TX */ 2344 /* 2345 * ira_rill and ira_ill is set inside IP, but not when conn_recv is 2346 * called; ULPs should use ira_ruifindex instead. 2347 */ 2348 ill_t *ira_rill; /* ill where packet came */ 2349 ill_t *ira_ill; /* ill where IP address hosted */ 2350 cred_t *ira_cred; /* For getpeerucred */ 2351 pid_t ira_cpid; /* For getpeerucred */ 2352 2353 /* Used when IRAF_VERIFIED_SRC is set; this source was ok */ 2354 ipaddr_t ira_verified_src; 2355 2356 /* 2357 * The following IPsec fields are only initialized when 2358 * IRAF_IPSEC_SECURE is set. Otherwise they contain garbage. 2359 */ 2360 struct ipsec_action_s *ira_ipsec_action; /* how we made it in.. */ 2361 struct ipsa_s *ira_ipsec_ah_sa; /* SA for AH */ 2362 struct ipsa_s *ira_ipsec_esp_sa; /* SA for ESP */ 2363 2364 ipaddr_t ira_mroute_tunnel; /* IRAF_MROUTE_TUNNEL_SET */ 2365 2366 zoneid_t ira_no_loop_zoneid; /* IRAF_NO_LOOP_ZONEID_SET */ 2367 2368 uint32_t ira_esp_udp_ports; /* IRAF_ESP_UDP_PORTS */ 2369 2370 /* 2371 * For IP_RECVSLLA and ip_ndp_conflict/find_solicitation. 2372 * Same size as max for sockaddr_dl 2373 */ 2374 #define IRA_L2SRC_SIZE 244 2375 uint8_t ira_l2src[IRA_L2SRC_SIZE]; /* If IRAF_L2SRC_SET */ 2376 2377 /* 2378 * Local handle that we use to do lazy setting of ira_l2src. 2379 * We defer setting l2src until needed but we do before any 2380 * ip_input pullupmsg or copymsg. 2381 */ 2382 struct mac_header_info_s *ira_mhip; /* Could be NULL */ 2383 }; 2384 2385 /* 2386 * Flags to indicate which receive attributes are set. 2387 */ 2388 #define IRAF_SYSTEM_LABELED 0x00000001 /* is_system_labeled() */ 2389 #define IRAF_IPV4_OPTIONS 0x00000002 /* Performance */ 2390 #define IRAF_MULTICAST 0x00000004 /* Was multicast at L3 */ 2391 #define IRAF_BROADCAST 0x00000008 /* Was broadcast at L3 */ 2392 #define IRAF_MULTIBROADCAST (IRAF_MULTICAST|IRAF_BROADCAST) 2393 2394 #define IRAF_LOOPBACK 0x00000010 /* Looped back by IP */ 2395 #define IRAF_VERIFY_IP_CKSUM 0x00000020 /* Need to verify IP */ 2396 #define IRAF_VERIFY_ULP_CKSUM 0x00000040 /* Need to verify TCP,UDP,etc */ 2397 #define IRAF_SCTP_CSUM_ERR 0x00000080 /* sctp pkt has failed chksum */ 2398 2399 #define IRAF_IPSEC_SECURE 0x00000100 /* Passed AH and/or ESP */ 2400 #define IRAF_DHCP_UNICAST 0x00000200 2401 #define IRAF_IPSEC_DECAPS 0x00000400 /* Was packet decapsulated */ 2402 /* from a matching inner packet? */ 2403 #define IRAF_TARGET_SQP 0x00000800 /* ira_target_sqp is set */ 2404 #define IRAF_VERIFIED_SRC 0x00001000 /* ira_verified_src set */ 2405 #define IRAF_RSVP 0x00002000 /* RSVP packet for rsvpd */ 2406 #define IRAF_MROUTE_TUNNEL_SET 0x00004000 /* From ip_mroute_decap */ 2407 #define IRAF_PIM_REGISTER 0x00008000 /* From register_mforward */ 2408 2409 #define IRAF_TX_MAC_EXEMPTABLE 0x00010000 /* Allow MAC_EXEMPT readdown */ 2410 #define IRAF_TX_SHARED_ADDR 0x00020000 /* Arrived on ALL_ZONES addr */ 2411 #define IRAF_ESP_UDP_PORTS 0x00040000 /* NAT-traversal packet */ 2412 #define IRAF_NO_HW_CKSUM 0x00080000 /* Force software cksum */ 2413 2414 #define IRAF_ICMP_ERROR 0x00100000 /* Send to conn_recvicmp */ 2415 #define IRAF_ROUTER_ALERT 0x00200000 /* IPv6 router alert */ 2416 #define IRAF_L2SRC_SET 0x00400000 /* ira_l2src has been set */ 2417 #define IRAF_L2SRC_LOOPBACK 0x00800000 /* Came from us */ 2418 2419 #define IRAF_L2DST_MULTICAST 0x01000000 /* Multicast at L2 */ 2420 #define IRAF_L2DST_BROADCAST 0x02000000 /* Broadcast at L2 */ 2421 /* Unused 0x04000000 */ 2422 /* Unused 0x08000000 */ 2423 2424 /* Below starts with 0x10000000 */ 2425 #define IRAF_IS_IPV4 IAF_IS_IPV4 2426 #define IRAF_TRUSTED_ICMP IAF_TRUSTED_ICMP 2427 #define IRAF_NO_LOOP_ZONEID_SET IAF_NO_LOOP_ZONEID_SET 2428 #define IRAF_LOOPBACK_COPY IAF_LOOPBACK_COPY 2429 2430 /* 2431 * Normally these fields do not have a hold. But in some cases they do, for 2432 * instance when we've gone through ip_*_attr_to/from_mblk. 2433 * We use ira_free_flags to indicate that they have a hold and need to be 2434 * released on cleanup. 2435 */ 2436 #define IRA_FREE_CRED 0x00000001 /* ira_cred needs to be rele */ 2437 #define IRA_FREE_TSL 0x00000002 /* ira_tsl needs to be rele */ 2438 2439 /* 2440 * Optional destination cache entry for path MTU information, 2441 * and ULP metrics. 2442 */ 2443 struct dce_s { 2444 uint_t dce_generation; /* Changed since cached? */ 2445 uint_t dce_flags; /* See below */ 2446 uint_t dce_ipversion; /* IPv4/IPv6 version */ 2447 uint32_t dce_pmtu; /* Path MTU if DCEF_PMTU */ 2448 uint32_t dce_ident; /* Per destination IP ident. */ 2449 iulp_t dce_uinfo; /* Metrics if DCEF_UINFO */ 2450 2451 struct dce_s *dce_next; 2452 struct dce_s **dce_ptpn; 2453 struct dcb_s *dce_bucket; 2454 2455 union { 2456 in6_addr_t dceu_v6addr; 2457 ipaddr_t dceu_v4addr; 2458 } dce_u; 2459 #define dce_v4addr dce_u.dceu_v4addr 2460 #define dce_v6addr dce_u.dceu_v6addr 2461 /* Note that for IPv6+IPMP we use the ifindex for the upper interface */ 2462 uint_t dce_ifindex; /* For IPv6 link-locals */ 2463 2464 kmutex_t dce_lock; 2465 uint_t dce_refcnt; 2466 uint64_t dce_last_change_time; /* Path MTU. In seconds */ 2467 2468 ip_stack_t *dce_ipst; /* Does not have a netstack_hold */ 2469 }; 2470 2471 /* 2472 * Values for dce_generation. 2473 * 2474 * If a DCE has DCE_GENERATION_CONDEMNED, the last dce_refrele should delete 2475 * it. 2476 * 2477 * DCE_GENERATION_VERIFY is never stored in dce_generation but it is 2478 * stored in places that cache DCE (such as ixa_dce_generation). 2479 * It is used as a signal that the cache is stale and needs to be reverified. 2480 */ 2481 #define DCE_GENERATION_CONDEMNED 0 2482 #define DCE_GENERATION_VERIFY 1 2483 #define DCE_GENERATION_INITIAL 2 2484 #define DCE_IS_CONDEMNED(dce) \ 2485 ((dce)->dce_generation == DCE_GENERATION_CONDEMNED) 2486 2487 2488 /* 2489 * Values for ips_src_generation. 2490 * 2491 * SRC_GENERATION_VERIFY is never stored in ips_src_generation but it is 2492 * stored in places that cache IREs (ixa_src_generation). It is used as a 2493 * signal that the cache is stale and needs to be reverified. 2494 */ 2495 #define SRC_GENERATION_VERIFY 0 2496 #define SRC_GENERATION_INITIAL 1 2497 2498 /* 2499 * The kernel stores security attributes of all gateways in a database made 2500 * up of one or more tsol_gcdb_t elements. Each tsol_gcdb_t contains the 2501 * security-related credentials of the gateway. More than one gateways may 2502 * share entries in the database. 2503 * 2504 * The tsol_gc_t structure represents the gateway to credential association, 2505 * and refers to an entry in the database. One or more tsol_gc_t entities are 2506 * grouped together to form one or more tsol_gcgrp_t, each representing the 2507 * list of security attributes specific to the gateway. A gateway may be 2508 * associated with at most one credentials group. 2509 */ 2510 struct tsol_gcgrp_s; 2511 2512 extern uchar_t ip6opt_ls; /* TX IPv6 enabler */ 2513 2514 /* 2515 * Gateway security credential record. 2516 */ 2517 typedef struct tsol_gcdb_s { 2518 uint_t gcdb_refcnt; /* reference count */ 2519 struct rtsa_s gcdb_attr; /* security attributes */ 2520 #define gcdb_mask gcdb_attr.rtsa_mask 2521 #define gcdb_doi gcdb_attr.rtsa_doi 2522 #define gcdb_slrange gcdb_attr.rtsa_slrange 2523 } tsol_gcdb_t; 2524 2525 /* 2526 * Gateway to credential association. 2527 */ 2528 typedef struct tsol_gc_s { 2529 uint_t gc_refcnt; /* reference count */ 2530 struct tsol_gcgrp_s *gc_grp; /* pointer to group */ 2531 struct tsol_gc_s *gc_prev; /* previous in list */ 2532 struct tsol_gc_s *gc_next; /* next in list */ 2533 tsol_gcdb_t *gc_db; /* pointer to actual credentials */ 2534 } tsol_gc_t; 2535 2536 /* 2537 * Gateway credentials group address. 2538 */ 2539 typedef struct tsol_gcgrp_addr_s { 2540 int ga_af; /* address family */ 2541 in6_addr_t ga_addr; /* IPv4 mapped or IPv6 address */ 2542 } tsol_gcgrp_addr_t; 2543 2544 /* 2545 * Gateway credentials group. 2546 */ 2547 typedef struct tsol_gcgrp_s { 2548 uint_t gcgrp_refcnt; /* reference count */ 2549 krwlock_t gcgrp_rwlock; /* lock to protect following */ 2550 uint_t gcgrp_count; /* number of credentials */ 2551 tsol_gc_t *gcgrp_head; /* first credential in list */ 2552 tsol_gc_t *gcgrp_tail; /* last credential in list */ 2553 tsol_gcgrp_addr_t gcgrp_addr; /* next-hop gateway address */ 2554 } tsol_gcgrp_t; 2555 2556 extern kmutex_t gcgrp_lock; 2557 2558 #define GC_REFRELE(p) { \ 2559 ASSERT((p)->gc_grp != NULL); \ 2560 rw_enter(&(p)->gc_grp->gcgrp_rwlock, RW_WRITER); \ 2561 ASSERT((p)->gc_refcnt > 0); \ 2562 if (--((p)->gc_refcnt) == 0) \ 2563 gc_inactive(p); \ 2564 else \ 2565 rw_exit(&(p)->gc_grp->gcgrp_rwlock); \ 2566 } 2567 2568 #define GCGRP_REFHOLD(p) { \ 2569 mutex_enter(&gcgrp_lock); \ 2570 ++((p)->gcgrp_refcnt); \ 2571 ASSERT((p)->gcgrp_refcnt != 0); \ 2572 mutex_exit(&gcgrp_lock); \ 2573 } 2574 2575 #define GCGRP_REFRELE(p) { \ 2576 mutex_enter(&gcgrp_lock); \ 2577 ASSERT((p)->gcgrp_refcnt > 0); \ 2578 if (--((p)->gcgrp_refcnt) == 0) \ 2579 gcgrp_inactive(p); \ 2580 ASSERT(MUTEX_HELD(&gcgrp_lock)); \ 2581 mutex_exit(&gcgrp_lock); \ 2582 } 2583 2584 /* 2585 * IRE gateway security attributes structure, pointed to by tsol_ire_gw_secattr 2586 */ 2587 struct tsol_tnrhc; 2588 2589 struct tsol_ire_gw_secattr_s { 2590 kmutex_t igsa_lock; /* lock to protect following */ 2591 struct tsol_tnrhc *igsa_rhc; /* host entry for gateway */ 2592 tsol_gc_t *igsa_gc; /* for prefix IREs */ 2593 }; 2594 2595 void irb_refrele_ftable(irb_t *); 2596 2597 extern struct kmem_cache *rt_entry_cache; 2598 2599 typedef struct ire4 { 2600 ipaddr_t ire4_mask; /* Mask for matching this IRE. */ 2601 ipaddr_t ire4_addr; /* Address this IRE represents. */ 2602 ipaddr_t ire4_gateway_addr; /* Gateway including for IRE_ONLINK */ 2603 ipaddr_t ire4_setsrc_addr; /* RTF_SETSRC */ 2604 } ire4_t; 2605 2606 typedef struct ire6 { 2607 in6_addr_t ire6_mask; /* Mask for matching this IRE. */ 2608 in6_addr_t ire6_addr; /* Address this IRE represents. */ 2609 in6_addr_t ire6_gateway_addr; /* Gateway including for IRE_ONLINK */ 2610 in6_addr_t ire6_setsrc_addr; /* RTF_SETSRC */ 2611 } ire6_t; 2612 2613 typedef union ire_addr { 2614 ire6_t ire6_u; 2615 ire4_t ire4_u; 2616 } ire_addr_u_t; 2617 2618 /* 2619 * Internet Routing Entry 2620 * When we have multiple identical IREs we logically add them by manipulating 2621 * ire_identical_ref and ire_delete first decrements 2622 * that and when it reaches 1 we know it is the last IRE. 2623 * "identical" is defined as being the same for: 2624 * ire_addr, ire_netmask, ire_gateway, ire_ill, ire_zoneid, and ire_type 2625 * For instance, multiple IRE_BROADCASTs for the same subnet number are 2626 * viewed as identical, and so are the IRE_INTERFACEs when there are 2627 * multiple logical interfaces (on the same ill) with the same subnet prefix. 2628 */ 2629 struct ire_s { 2630 struct ire_s *ire_next; /* The hash chain must be first. */ 2631 struct ire_s **ire_ptpn; /* Pointer to previous next. */ 2632 uint32_t ire_refcnt; /* Number of references */ 2633 ill_t *ire_ill; 2634 uint32_t ire_identical_ref; /* IRE_INTERFACE, IRE_BROADCAST */ 2635 uchar_t ire_ipversion; /* IPv4/IPv6 version */ 2636 ushort_t ire_type; /* Type of IRE */ 2637 uint_t ire_generation; /* Generation including CONDEMNED */ 2638 uint_t ire_ib_pkt_count; /* Inbound packets for ire_addr */ 2639 uint_t ire_ob_pkt_count; /* Outbound packets to ire_addr */ 2640 time_t ire_create_time; /* Time (in secs) IRE was created. */ 2641 uint32_t ire_flags; /* flags related to route (RTF_*) */ 2642 /* 2643 * ire_testhidden is TRUE for INTERFACE IREs of IS_UNDER_IPMP(ill) 2644 * interfaces 2645 */ 2646 boolean_t ire_testhidden; 2647 pfirerecv_t ire_recvfn; /* Receive side handling */ 2648 pfiresend_t ire_sendfn; /* Send side handling */ 2649 pfirepostfrag_t ire_postfragfn; /* Bottom end of send handling */ 2650 2651 uint_t ire_masklen; /* # bits in ire_mask{,_v6} */ 2652 ire_addr_u_t ire_u; /* IPv4/IPv6 address info. */ 2653 2654 irb_t *ire_bucket; /* Hash bucket when ire_ptphn is set */ 2655 kmutex_t ire_lock; 2656 clock_t ire_last_used_time; /* For IRE_LOCAL reception */ 2657 tsol_ire_gw_secattr_t *ire_gw_secattr; /* gateway security attributes */ 2658 zoneid_t ire_zoneid; 2659 2660 /* 2661 * Cached information of where to send packets that match this route. 2662 * The ire_dep_* information is used to determine when ire_nce_cache 2663 * needs to be updated. 2664 * ire_nce_cache is the fastpath for the Neighbor Cache Entry 2665 * for IPv6; arp info for IPv4 2666 * Since this is a cache setup and torn down independently of 2667 * applications we need to use nce_ref{rele,hold}_notr for it. 2668 */ 2669 nce_t *ire_nce_cache; 2670 2671 /* 2672 * Quick check whether the ire_type and ire_masklen indicates 2673 * that the IRE can have ire_nce_cache set i.e., whether it is 2674 * IRE_ONLINK and for a single destination. 2675 */ 2676 boolean_t ire_nce_capable; 2677 2678 /* 2679 * Dependency tracking so we can safely cache IRE and NCE pointers 2680 * in offlink and onlink IREs. 2681 * These are locked under the ips_ire_dep_lock rwlock. Write held 2682 * when modifying the linkage. 2683 * ire_dep_parent (Also chain towards IRE for nexthop) 2684 * ire_dep_parent_generation: ire_generation of ire_dep_parent 2685 * ire_dep_children (From parent to first child) 2686 * ire_dep_sib_next (linked list of siblings) 2687 * ire_dep_sib_ptpn (linked list of siblings) 2688 * 2689 * The parent has a ire_refhold on each child, and each child has 2690 * an ire_refhold on its parent. 2691 * Since ire_dep_parent is a cache setup and torn down independently of 2692 * applications we need to use ire_ref{rele,hold}_notr for it. 2693 */ 2694 ire_t *ire_dep_parent; 2695 ire_t *ire_dep_children; 2696 ire_t *ire_dep_sib_next; 2697 ire_t **ire_dep_sib_ptpn; /* Pointer to previous next */ 2698 uint_t ire_dep_parent_generation; 2699 2700 uint_t ire_badcnt; /* Number of times ND_UNREACHABLE */ 2701 uint64_t ire_last_badcnt; /* In seconds */ 2702 2703 /* ire_defense* and ire_last_used_time are only used on IRE_LOCALs */ 2704 uint_t ire_defense_count; /* number of ARP conflicts */ 2705 uint_t ire_defense_time; /* last time defended (secs) */ 2706 2707 boolean_t ire_trace_disable; /* True when alloc fails */ 2708 ip_stack_t *ire_ipst; /* Does not have a netstack_hold */ 2709 iulp_t ire_metrics; 2710 /* 2711 * default and prefix routes that are added without explicitly 2712 * specifying the interface are termed "unbound" routes, and will 2713 * have ire_unbound set to true. 2714 */ 2715 boolean_t ire_unbound; 2716 }; 2717 2718 /* IPv4 compatibility macros */ 2719 #define ire_mask ire_u.ire4_u.ire4_mask 2720 #define ire_addr ire_u.ire4_u.ire4_addr 2721 #define ire_gateway_addr ire_u.ire4_u.ire4_gateway_addr 2722 #define ire_setsrc_addr ire_u.ire4_u.ire4_setsrc_addr 2723 2724 #define ire_mask_v6 ire_u.ire6_u.ire6_mask 2725 #define ire_addr_v6 ire_u.ire6_u.ire6_addr 2726 #define ire_gateway_addr_v6 ire_u.ire6_u.ire6_gateway_addr 2727 #define ire_setsrc_addr_v6 ire_u.ire6_u.ire6_setsrc_addr 2728 2729 /* 2730 * Values for ire_generation. 2731 * 2732 * If an IRE is marked with IRE_IS_CONDEMNED, the last walker of 2733 * the bucket should delete this IRE from this bucket. 2734 * 2735 * IRE_GENERATION_VERIFY is never stored in ire_generation but it is 2736 * stored in places that cache IREs (such as ixa_ire_generation and 2737 * ire_dep_parent_generation). It is used as a signal that the cache is 2738 * stale and needs to be reverified. 2739 */ 2740 #define IRE_GENERATION_CONDEMNED 0 2741 #define IRE_GENERATION_VERIFY 1 2742 #define IRE_GENERATION_INITIAL 2 2743 #define IRE_IS_CONDEMNED(ire) \ 2744 ((ire)->ire_generation == IRE_GENERATION_CONDEMNED) 2745 2746 /* Convenient typedefs for sockaddrs */ 2747 typedef struct sockaddr_in sin_t; 2748 typedef struct sockaddr_in6 sin6_t; 2749 2750 /* Name/Value Descriptor. */ 2751 typedef struct nv_s { 2752 uint64_t nv_value; 2753 char *nv_name; 2754 } nv_t; 2755 2756 #define ILL_FRAG_HASH(s, i) \ 2757 ((ntohl(s) ^ ((i) ^ ((i) >> 8))) % ILL_FRAG_HASH_TBL_COUNT) 2758 2759 /* 2760 * The MAX number of allowed fragmented packets per hash bucket 2761 * calculation is based on the most common mtu size of 1500. This limit 2762 * will work well for other mtu sizes as well. 2763 */ 2764 #define COMMON_IP_MTU 1500 2765 #define MAX_FRAG_MIN 10 2766 #define MAX_FRAG_PKTS(ipst) \ 2767 MAX(MAX_FRAG_MIN, (2 * (ipst->ips_ip_reass_queue_bytes / \ 2768 (COMMON_IP_MTU * ILL_FRAG_HASH_TBL_COUNT)))) 2769 2770 /* 2771 * Maximum dups allowed per packet. 2772 */ 2773 extern uint_t ip_max_frag_dups; 2774 2775 /* 2776 * Per-packet information for received packets and transmitted. 2777 * Used by the transport protocols when converting between the packet 2778 * and ancillary data and socket options. 2779 * 2780 * Note: This private data structure and related IPPF_* constant 2781 * definitions are exposed to enable compilation of some debugging tools 2782 * like lsof which use struct tcp_t in <inet/tcp.h>. This is intended to be 2783 * a temporary hack and long term alternate interfaces should be defined 2784 * to support the needs of such tools and private definitions moved to 2785 * private headers. 2786 */ 2787 struct ip_pkt_s { 2788 uint_t ipp_fields; /* Which fields are valid */ 2789 in6_addr_t ipp_addr; /* pktinfo src/dst addr */ 2790 #define ipp_addr_v4 V4_PART_OF_V6(ipp_addr) 2791 uint_t ipp_unicast_hops; /* IPV6_UNICAST_HOPS, IP_TTL */ 2792 uint_t ipp_hoplimit; /* IPV6_HOPLIMIT */ 2793 uint_t ipp_hopoptslen; 2794 uint_t ipp_rthdrdstoptslen; 2795 uint_t ipp_rthdrlen; 2796 uint_t ipp_dstoptslen; 2797 uint_t ipp_fraghdrlen; 2798 ip6_hbh_t *ipp_hopopts; 2799 ip6_dest_t *ipp_rthdrdstopts; 2800 ip6_rthdr_t *ipp_rthdr; 2801 ip6_dest_t *ipp_dstopts; 2802 ip6_frag_t *ipp_fraghdr; 2803 uint8_t ipp_tclass; /* IPV6_TCLASS */ 2804 uint8_t ipp_type_of_service; /* IP_TOS */ 2805 uint_t ipp_ipv4_options_len; /* Len of IPv4 options */ 2806 uint8_t *ipp_ipv4_options; /* Ptr to IPv4 options */ 2807 uint_t ipp_label_len_v4; /* Len of TX label for IPv4 */ 2808 uint8_t *ipp_label_v4; /* TX label for IPv4 */ 2809 uint_t ipp_label_len_v6; /* Len of TX label for IPv6 */ 2810 uint8_t *ipp_label_v6; /* TX label for IPv6 */ 2811 }; 2812 typedef struct ip_pkt_s ip_pkt_t; 2813 2814 extern void ip_pkt_free(ip_pkt_t *); /* free storage inside ip_pkt_t */ 2815 extern ipaddr_t ip_pkt_source_route_v4(const ip_pkt_t *); 2816 extern in6_addr_t *ip_pkt_source_route_v6(const ip_pkt_t *); 2817 extern int ip_pkt_copy(ip_pkt_t *, ip_pkt_t *, int); 2818 extern void ip_pkt_source_route_reverse_v4(ip_pkt_t *); 2819 2820 /* ipp_fields values */ 2821 #define IPPF_ADDR 0x0001 /* Part of in6_pktinfo: src/dst addr */ 2822 #define IPPF_HOPLIMIT 0x0002 /* Overrides unicast and multicast */ 2823 #define IPPF_TCLASS 0x0004 /* Overrides class in sin6_flowinfo */ 2824 2825 #define IPPF_HOPOPTS 0x0010 /* ipp_hopopts set */ 2826 #define IPPF_RTHDR 0x0020 /* ipp_rthdr set */ 2827 #define IPPF_RTHDRDSTOPTS 0x0040 /* ipp_rthdrdstopts set */ 2828 #define IPPF_DSTOPTS 0x0080 /* ipp_dstopts set */ 2829 2830 #define IPPF_IPV4_OPTIONS 0x0100 /* ipp_ipv4_options set */ 2831 #define IPPF_LABEL_V4 0x0200 /* ipp_label_v4 set */ 2832 #define IPPF_LABEL_V6 0x0400 /* ipp_label_v6 set */ 2833 2834 #define IPPF_FRAGHDR 0x0800 /* Used for IPsec receive side */ 2835 2836 /* 2837 * Data structure which is passed to conn_opt_get/set. 2838 * The conn_t is included even though it can be inferred from queue_t. 2839 * setsockopt and getsockopt use conn_ixa and conn_xmit_ipp. However, 2840 * when handling ancillary data we use separate ixa and ipps. 2841 */ 2842 typedef struct conn_opt_arg_s { 2843 conn_t *coa_connp; 2844 ip_xmit_attr_t *coa_ixa; 2845 ip_pkt_t *coa_ipp; 2846 boolean_t coa_ancillary; /* Ancillary data and not setsockopt */ 2847 uint_t coa_changed; /* See below */ 2848 } conn_opt_arg_t; 2849 2850 /* 2851 * Flags for what changed. 2852 * If we want to be more efficient in the future we can have more fine 2853 * grained flags e.g., a flag for just IP_TOS changing. 2854 * For now we either call ip_set_destination (for "route changed") 2855 * and/or conn_build_hdr_template/conn_prepend_hdr (for "header changed"). 2856 */ 2857 #define COA_HEADER_CHANGED 0x0001 2858 #define COA_ROUTE_CHANGED 0x0002 2859 #define COA_RCVBUF_CHANGED 0x0004 /* SO_RCVBUF */ 2860 #define COA_SNDBUF_CHANGED 0x0008 /* SO_SNDBUF */ 2861 #define COA_WROFF_CHANGED 0x0010 /* Header size changed */ 2862 #define COA_ICMP_BIND_NEEDED 0x0020 2863 #define COA_OOBINLINE_CHANGED 0x0040 2864 2865 #define TCP_PORTS_OFFSET 0 2866 #define UDP_PORTS_OFFSET 0 2867 2868 /* 2869 * lookups return the ill/ipif only if the flags are clear OR Iam writer. 2870 * ill / ipif lookup functions increment the refcnt on the ill / ipif only 2871 * after calling these macros. This ensures that the refcnt on the ipif or 2872 * ill will eventually drop down to zero. 2873 */ 2874 #define ILL_LOOKUP_FAILED 1 /* Used as error code */ 2875 #define IPIF_LOOKUP_FAILED 2 /* Used as error code */ 2876 2877 #define ILL_CAN_LOOKUP(ill) \ 2878 (!((ill)->ill_state_flags & ILL_CONDEMNED) || \ 2879 IAM_WRITER_ILL(ill)) 2880 2881 #define ILL_IS_CONDEMNED(ill) \ 2882 ((ill)->ill_state_flags & ILL_CONDEMNED) 2883 2884 #define IPIF_CAN_LOOKUP(ipif) \ 2885 (!((ipif)->ipif_state_flags & IPIF_CONDEMNED) || \ 2886 IAM_WRITER_IPIF(ipif)) 2887 2888 #define IPIF_IS_CONDEMNED(ipif) \ 2889 ((ipif)->ipif_state_flags & IPIF_CONDEMNED) 2890 2891 #define IPIF_IS_CHANGING(ipif) \ 2892 ((ipif)->ipif_state_flags & IPIF_CHANGING) 2893 2894 /* Macros used to assert that this thread is a writer */ 2895 #define IAM_WRITER_IPSQ(ipsq) ((ipsq)->ipsq_xop->ipx_writer == curthread) 2896 #define IAM_WRITER_ILL(ill) IAM_WRITER_IPSQ((ill)->ill_phyint->phyint_ipsq) 2897 #define IAM_WRITER_IPIF(ipif) IAM_WRITER_ILL((ipif)->ipif_ill) 2898 2899 /* 2900 * Grab ill locks in the proper order. The order is highest addressed 2901 * ill is locked first. 2902 */ 2903 #define GRAB_ILL_LOCKS(ill_1, ill_2) \ 2904 { \ 2905 if ((ill_1) > (ill_2)) { \ 2906 if (ill_1 != NULL) \ 2907 mutex_enter(&(ill_1)->ill_lock); \ 2908 if (ill_2 != NULL) \ 2909 mutex_enter(&(ill_2)->ill_lock); \ 2910 } else { \ 2911 if (ill_2 != NULL) \ 2912 mutex_enter(&(ill_2)->ill_lock); \ 2913 if (ill_1 != NULL && ill_1 != ill_2) \ 2914 mutex_enter(&(ill_1)->ill_lock); \ 2915 } \ 2916 } 2917 2918 #define RELEASE_ILL_LOCKS(ill_1, ill_2) \ 2919 { \ 2920 if (ill_1 != NULL) \ 2921 mutex_exit(&(ill_1)->ill_lock); \ 2922 if (ill_2 != NULL && ill_2 != ill_1) \ 2923 mutex_exit(&(ill_2)->ill_lock); \ 2924 } 2925 2926 /* Get the other protocol instance ill */ 2927 #define ILL_OTHER(ill) \ 2928 ((ill)->ill_isv6 ? (ill)->ill_phyint->phyint_illv4 : \ 2929 (ill)->ill_phyint->phyint_illv6) 2930 2931 /* ioctl command info: Ioctl properties extracted and stored in here */ 2932 typedef struct cmd_info_s 2933 { 2934 ipif_t *ci_ipif; /* ipif associated with [l]ifreq ioctl's */ 2935 sin_t *ci_sin; /* the sin struct passed down */ 2936 sin6_t *ci_sin6; /* the sin6_t struct passed down */ 2937 struct lifreq *ci_lifr; /* the lifreq struct passed down */ 2938 } cmd_info_t; 2939 2940 extern struct kmem_cache *ire_cache; 2941 2942 extern ipaddr_t ip_g_all_ones; 2943 2944 extern uint_t ip_loopback_mtu; /* /etc/system */ 2945 extern uint_t ip_loopback_mtuplus; 2946 extern uint_t ip_loopback_mtu_v6plus; 2947 2948 extern vmem_t *ip_minor_arena_sa; 2949 extern vmem_t *ip_minor_arena_la; 2950 2951 /* 2952 * ip_g_forward controls IP forwarding. It takes two values: 2953 * 0: IP_FORWARD_NEVER Don't forward packets ever. 2954 * 1: IP_FORWARD_ALWAYS Forward packets for elsewhere. 2955 * 2956 * RFC1122 says there must be a configuration switch to control forwarding, 2957 * but that the default MUST be to not forward packets ever. Implicit 2958 * control based on configuration of multiple interfaces MUST NOT be 2959 * implemented (Section 3.1). SunOS 4.1 did provide the "automatic" capability 2960 * and, in fact, it was the default. That capability is now provided in the 2961 * /etc/rc2.d/S69inet script. 2962 */ 2963 2964 #define ips_ip_respond_to_address_mask_broadcast \ 2965 ips_propinfo_tbl[0].prop_cur_bval 2966 #define ips_ip_g_resp_to_echo_bcast ips_propinfo_tbl[1].prop_cur_bval 2967 #define ips_ip_g_resp_to_echo_mcast ips_propinfo_tbl[2].prop_cur_bval 2968 #define ips_ip_g_resp_to_timestamp ips_propinfo_tbl[3].prop_cur_bval 2969 #define ips_ip_g_resp_to_timestamp_bcast ips_propinfo_tbl[4].prop_cur_bval 2970 #define ips_ip_g_send_redirects ips_propinfo_tbl[5].prop_cur_bval 2971 #define ips_ip_g_forward_directed_bcast ips_propinfo_tbl[6].prop_cur_bval 2972 #define ips_ip_mrtdebug ips_propinfo_tbl[7].prop_cur_uval 2973 #define ips_ip_ire_reclaim_fraction ips_propinfo_tbl[8].prop_cur_uval 2974 #define ips_ip_nce_reclaim_fraction ips_propinfo_tbl[9].prop_cur_uval 2975 #define ips_ip_dce_reclaim_fraction ips_propinfo_tbl[10].prop_cur_uval 2976 #define ips_ip_def_ttl ips_propinfo_tbl[11].prop_cur_uval 2977 #define ips_ip_forward_src_routed ips_propinfo_tbl[12].prop_cur_bval 2978 #define ips_ip_wroff_extra ips_propinfo_tbl[13].prop_cur_uval 2979 #define ips_ip_pathmtu_interval ips_propinfo_tbl[14].prop_cur_uval 2980 #define ips_ip_icmp_return ips_propinfo_tbl[15].prop_cur_uval 2981 #define ips_ip_path_mtu_discovery ips_propinfo_tbl[16].prop_cur_bval 2982 #define ips_ip_pmtu_min ips_propinfo_tbl[17].prop_cur_uval 2983 #define ips_ip_ignore_redirect ips_propinfo_tbl[18].prop_cur_bval 2984 #define ips_ip_arp_icmp_error ips_propinfo_tbl[19].prop_cur_bval 2985 #define ips_ip_broadcast_ttl ips_propinfo_tbl[20].prop_cur_uval 2986 #define ips_ip_icmp_err_interval ips_propinfo_tbl[21].prop_cur_uval 2987 #define ips_ip_icmp_err_burst ips_propinfo_tbl[22].prop_cur_uval 2988 #define ips_ip_reass_queue_bytes ips_propinfo_tbl[23].prop_cur_uval 2989 #define ips_ip_strict_dst_multihoming ips_propinfo_tbl[24].prop_cur_uval 2990 #define ips_ip_addrs_per_if ips_propinfo_tbl[25].prop_cur_uval 2991 #define ips_ipsec_override_persocket_policy ips_propinfo_tbl[26].prop_cur_bval 2992 #define ips_icmp_accept_clear_messages ips_propinfo_tbl[27].prop_cur_bval 2993 #define ips_igmp_accept_clear_messages ips_propinfo_tbl[28].prop_cur_bval 2994 2995 /* IPv6 configuration knobs */ 2996 #define ips_delay_first_probe_time ips_propinfo_tbl[29].prop_cur_uval 2997 #define ips_max_unicast_solicit ips_propinfo_tbl[30].prop_cur_uval 2998 #define ips_ipv6_def_hops ips_propinfo_tbl[31].prop_cur_uval 2999 #define ips_ipv6_icmp_return ips_propinfo_tbl[32].prop_cur_uval 3000 #define ips_ipv6_forward_src_routed ips_propinfo_tbl[33].prop_cur_bval 3001 #define ips_ipv6_resp_echo_mcast ips_propinfo_tbl[34].prop_cur_bval 3002 #define ips_ipv6_send_redirects ips_propinfo_tbl[35].prop_cur_bval 3003 #define ips_ipv6_ignore_redirect ips_propinfo_tbl[36].prop_cur_bval 3004 #define ips_ipv6_strict_dst_multihoming ips_propinfo_tbl[37].prop_cur_uval 3005 #define ips_src_check ips_propinfo_tbl[38].prop_cur_uval 3006 #define ips_ipsec_policy_log_interval ips_propinfo_tbl[39].prop_cur_uval 3007 #define ips_pim_accept_clear_messages ips_propinfo_tbl[40].prop_cur_bval 3008 #define ips_ip_ndp_unsolicit_interval ips_propinfo_tbl[41].prop_cur_uval 3009 #define ips_ip_ndp_unsolicit_count ips_propinfo_tbl[42].prop_cur_uval 3010 #define ips_ipv6_ignore_home_address_opt ips_propinfo_tbl[43].prop_cur_bval 3011 3012 /* Misc IP configuration knobs */ 3013 #define ips_ip_policy_mask ips_propinfo_tbl[44].prop_cur_uval 3014 #define ips_ip_ecmp_behavior ips_propinfo_tbl[45].prop_cur_uval 3015 #define ips_ip_multirt_ttl ips_propinfo_tbl[46].prop_cur_uval 3016 #define ips_ip_ire_badcnt_lifetime ips_propinfo_tbl[47].prop_cur_uval 3017 #define ips_ip_max_temp_idle ips_propinfo_tbl[48].prop_cur_uval 3018 #define ips_ip_max_temp_defend ips_propinfo_tbl[49].prop_cur_uval 3019 #define ips_ip_max_defend ips_propinfo_tbl[50].prop_cur_uval 3020 #define ips_ip_defend_interval ips_propinfo_tbl[51].prop_cur_uval 3021 #define ips_ip_dup_recovery ips_propinfo_tbl[52].prop_cur_uval 3022 #define ips_ip_restrict_interzone_loopback ips_propinfo_tbl[53].prop_cur_bval 3023 #define ips_ip_lso_outbound ips_propinfo_tbl[54].prop_cur_bval 3024 #define ips_igmp_max_version ips_propinfo_tbl[55].prop_cur_uval 3025 #define ips_mld_max_version ips_propinfo_tbl[56].prop_cur_uval 3026 #define ips_ip_forwarding ips_propinfo_tbl[57].prop_cur_bval 3027 #define ips_ipv6_forwarding ips_propinfo_tbl[58].prop_cur_bval 3028 #define ips_ip_reassembly_timeout ips_propinfo_tbl[59].prop_cur_uval 3029 #define ips_ipv6_reassembly_timeout ips_propinfo_tbl[60].prop_cur_uval 3030 #define ips_ip_cgtp_filter ips_propinfo_tbl[61].prop_cur_bval 3031 #define ips_arp_probe_delay ips_propinfo_tbl[62].prop_cur_uval 3032 #define ips_arp_fastprobe_delay ips_propinfo_tbl[63].prop_cur_uval 3033 #define ips_arp_probe_interval ips_propinfo_tbl[64].prop_cur_uval 3034 #define ips_arp_fastprobe_interval ips_propinfo_tbl[65].prop_cur_uval 3035 #define ips_arp_probe_count ips_propinfo_tbl[66].prop_cur_uval 3036 #define ips_arp_fastprobe_count ips_propinfo_tbl[67].prop_cur_uval 3037 #define ips_ipv4_dad_announce_interval ips_propinfo_tbl[68].prop_cur_uval 3038 #define ips_ipv6_dad_announce_interval ips_propinfo_tbl[69].prop_cur_uval 3039 #define ips_arp_defend_interval ips_propinfo_tbl[70].prop_cur_uval 3040 #define ips_arp_defend_rate ips_propinfo_tbl[71].prop_cur_uval 3041 #define ips_ndp_defend_interval ips_propinfo_tbl[72].prop_cur_uval 3042 #define ips_ndp_defend_rate ips_propinfo_tbl[73].prop_cur_uval 3043 #define ips_arp_defend_period ips_propinfo_tbl[74].prop_cur_uval 3044 #define ips_ndp_defend_period ips_propinfo_tbl[75].prop_cur_uval 3045 #define ips_ipv4_icmp_return_pmtu ips_propinfo_tbl[76].prop_cur_bval 3046 #define ips_ipv6_icmp_return_pmtu ips_propinfo_tbl[77].prop_cur_bval 3047 #define ips_ip_arp_publish_count ips_propinfo_tbl[78].prop_cur_uval 3048 #define ips_ip_arp_publish_interval ips_propinfo_tbl[79].prop_cur_uval 3049 #define ips_ip_strict_src_multihoming ips_propinfo_tbl[80].prop_cur_uval 3050 #define ips_ipv6_strict_src_multihoming ips_propinfo_tbl[81].prop_cur_uval 3051 #define ips_ipv6_drop_inbound_icmpv6 ips_propinfo_tbl[82].prop_cur_bval 3052 #define ips_ip_dce_reclaim_threshold ips_propinfo_tbl[83].prop_cur_uval 3053 3054 extern int dohwcksum; /* use h/w cksum if supported by the h/w */ 3055 #ifdef ZC_TEST 3056 extern int noswcksum; 3057 #endif 3058 3059 extern char ipif_loopback_name[]; 3060 3061 extern nv_t *ire_nv_tbl; 3062 3063 extern struct module_info ip_mod_info; 3064 3065 #define HOOKS4_INTERESTED_PHYSICAL_IN(ipst) \ 3066 ((ipst)->ips_ip4_physical_in_event.he_interested) 3067 #define HOOKS6_INTERESTED_PHYSICAL_IN(ipst) \ 3068 ((ipst)->ips_ip6_physical_in_event.he_interested) 3069 #define HOOKS4_INTERESTED_PHYSICAL_OUT(ipst) \ 3070 ((ipst)->ips_ip4_physical_out_event.he_interested) 3071 #define HOOKS6_INTERESTED_PHYSICAL_OUT(ipst) \ 3072 ((ipst)->ips_ip6_physical_out_event.he_interested) 3073 #define HOOKS4_INTERESTED_FORWARDING(ipst) \ 3074 ((ipst)->ips_ip4_forwarding_event.he_interested) 3075 #define HOOKS6_INTERESTED_FORWARDING(ipst) \ 3076 ((ipst)->ips_ip6_forwarding_event.he_interested) 3077 #define HOOKS4_INTERESTED_LOOPBACK_IN(ipst) \ 3078 ((ipst)->ips_ip4_loopback_in_event.he_interested) 3079 #define HOOKS6_INTERESTED_LOOPBACK_IN(ipst) \ 3080 ((ipst)->ips_ip6_loopback_in_event.he_interested) 3081 #define HOOKS4_INTERESTED_LOOPBACK_OUT(ipst) \ 3082 ((ipst)->ips_ip4_loopback_out_event.he_interested) 3083 #define HOOKS6_INTERESTED_LOOPBACK_OUT(ipst) \ 3084 ((ipst)->ips_ip6_loopback_out_event.he_interested) 3085 /* 3086 * Hooks marcos used inside of ip 3087 * The callers use the above INTERESTED macros first, hence 3088 * the he_interested check is superflous. 3089 */ 3090 #define FW_HOOKS(_hook, _event, _ilp, _olp, _iph, _fm, _m, _llm, ipst, _err) \ 3091 if ((_hook).he_interested) { \ 3092 hook_pkt_event_t info; \ 3093 \ 3094 _NOTE(CONSTCOND) \ 3095 ASSERT((_ilp != NULL) || (_olp != NULL)); \ 3096 \ 3097 FW_SET_ILL_INDEX(info.hpe_ifp, (ill_t *)_ilp); \ 3098 FW_SET_ILL_INDEX(info.hpe_ofp, (ill_t *)_olp); \ 3099 info.hpe_protocol = ipst->ips_ipv4_net_data; \ 3100 info.hpe_hdr = _iph; \ 3101 info.hpe_mp = &(_fm); \ 3102 info.hpe_mb = _m; \ 3103 info.hpe_flags = _llm; \ 3104 _err = hook_run(ipst->ips_ipv4_net_data->netd_hooks, \ 3105 _event, (hook_data_t)&info); \ 3106 if (_err != 0) { \ 3107 ip2dbg(("%s hook dropped mblk chain %p hdr %p\n",\ 3108 (_hook).he_name, (void *)_fm, (void *)_m)); \ 3109 if (_fm != NULL) { \ 3110 freemsg(_fm); \ 3111 _fm = NULL; \ 3112 } \ 3113 _iph = NULL; \ 3114 _m = NULL; \ 3115 } else { \ 3116 _iph = info.hpe_hdr; \ 3117 _m = info.hpe_mb; \ 3118 } \ 3119 } 3120 3121 #define FW_HOOKS6(_hook, _event, _ilp, _olp, _iph, _fm, _m, _llm, ipst, _err) \ 3122 if ((_hook).he_interested) { \ 3123 hook_pkt_event_t info; \ 3124 \ 3125 _NOTE(CONSTCOND) \ 3126 ASSERT((_ilp != NULL) || (_olp != NULL)); \ 3127 \ 3128 FW_SET_ILL_INDEX(info.hpe_ifp, (ill_t *)_ilp); \ 3129 FW_SET_ILL_INDEX(info.hpe_ofp, (ill_t *)_olp); \ 3130 info.hpe_protocol = ipst->ips_ipv6_net_data; \ 3131 info.hpe_hdr = _iph; \ 3132 info.hpe_mp = &(_fm); \ 3133 info.hpe_mb = _m; \ 3134 info.hpe_flags = _llm; \ 3135 _err = hook_run(ipst->ips_ipv6_net_data->netd_hooks, \ 3136 _event, (hook_data_t)&info); \ 3137 if (_err != 0) { \ 3138 ip2dbg(("%s hook dropped mblk chain %p hdr %p\n",\ 3139 (_hook).he_name, (void *)_fm, (void *)_m)); \ 3140 if (_fm != NULL) { \ 3141 freemsg(_fm); \ 3142 _fm = NULL; \ 3143 } \ 3144 _iph = NULL; \ 3145 _m = NULL; \ 3146 } else { \ 3147 _iph = info.hpe_hdr; \ 3148 _m = info.hpe_mb; \ 3149 } \ 3150 } 3151 3152 #define FW_SET_ILL_INDEX(fp, ill) \ 3153 _NOTE(CONSTCOND) \ 3154 if ((ill) == NULL || (ill)->ill_phyint == NULL) { \ 3155 (fp) = 0; \ 3156 _NOTE(CONSTCOND) \ 3157 } else if (IS_UNDER_IPMP(ill)) { \ 3158 (fp) = ipmp_ill_get_ipmp_ifindex(ill); \ 3159 } else { \ 3160 (fp) = (ill)->ill_phyint->phyint_ifindex; \ 3161 } 3162 3163 /* 3164 * Network byte order macros 3165 */ 3166 #ifdef _BIG_ENDIAN 3167 #define N_IN_CLASSA_NET IN_CLASSA_NET 3168 #define N_IN_CLASSD_NET IN_CLASSD_NET 3169 #define N_INADDR_UNSPEC_GROUP INADDR_UNSPEC_GROUP 3170 #define N_IN_LOOPBACK_NET (ipaddr_t)0x7f000000U 3171 #else /* _BIG_ENDIAN */ 3172 #define N_IN_CLASSA_NET (ipaddr_t)0x000000ffU 3173 #define N_IN_CLASSD_NET (ipaddr_t)0x000000f0U 3174 #define N_INADDR_UNSPEC_GROUP (ipaddr_t)0x000000e0U 3175 #define N_IN_LOOPBACK_NET (ipaddr_t)0x0000007fU 3176 #endif /* _BIG_ENDIAN */ 3177 #define CLASSD(addr) (((addr) & N_IN_CLASSD_NET) == N_INADDR_UNSPEC_GROUP) 3178 #define CLASSE(addr) (((addr) & N_IN_CLASSD_NET) == N_IN_CLASSD_NET) 3179 #define IP_LOOPBACK_ADDR(addr) \ 3180 (((addr) & N_IN_CLASSA_NET == N_IN_LOOPBACK_NET)) 3181 3182 extern int ip_debug; 3183 extern uint_t ip_thread_data; 3184 extern krwlock_t ip_thread_rwlock; 3185 extern list_t ip_thread_list; 3186 3187 #ifdef IP_DEBUG 3188 #include <sys/debug.h> 3189 #include <sys/promif.h> 3190 3191 #define ip0dbg(a) printf a 3192 #define ip1dbg(a) if (ip_debug > 2) printf a 3193 #define ip2dbg(a) if (ip_debug > 3) printf a 3194 #define ip3dbg(a) if (ip_debug > 4) printf a 3195 #else 3196 #define ip0dbg(a) /* */ 3197 #define ip1dbg(a) /* */ 3198 #define ip2dbg(a) /* */ 3199 #define ip3dbg(a) /* */ 3200 #endif /* IP_DEBUG */ 3201 3202 /* Default MAC-layer address string length for mac_colon_addr */ 3203 #define MAC_STR_LEN 128 3204 3205 struct mac_header_info_s; 3206 3207 extern void ill_frag_timer(void *); 3208 extern ill_t *ill_first(int, int, ill_walk_context_t *, ip_stack_t *); 3209 extern ill_t *ill_next(ill_walk_context_t *, ill_t *); 3210 extern void ill_frag_timer_start(ill_t *); 3211 extern void ill_nic_event_dispatch(ill_t *, lif_if_t, nic_event_t, 3212 nic_event_data_t, size_t); 3213 extern mblk_t *ip_carve_mp(mblk_t **, ssize_t); 3214 extern mblk_t *ip_dlpi_alloc(size_t, t_uscalar_t); 3215 extern mblk_t *ip_dlnotify_alloc(uint_t, uint_t); 3216 extern mblk_t *ip_dlnotify_alloc2(uint_t, uint_t, uint_t); 3217 extern char *ip_dot_addr(ipaddr_t, char *); 3218 extern const char *mac_colon_addr(const uint8_t *, size_t, char *, size_t); 3219 extern int ip_lwput(queue_t *, mblk_t *); 3220 extern boolean_t icmp_err_rate_limit(ip_stack_t *); 3221 extern void icmp_frag_needed(mblk_t *, int, ip_recv_attr_t *); 3222 extern mblk_t *icmp_inbound_v4(mblk_t *, ip_recv_attr_t *); 3223 extern void icmp_time_exceeded(mblk_t *, uint8_t, ip_recv_attr_t *); 3224 extern void icmp_unreachable(mblk_t *, uint8_t, ip_recv_attr_t *); 3225 extern boolean_t ip_ipsec_policy_inherit(conn_t *, conn_t *, ip_recv_attr_t *); 3226 extern void *ip_pullup(mblk_t *, ssize_t, ip_recv_attr_t *); 3227 extern void ip_setl2src(mblk_t *, ip_recv_attr_t *, ill_t *); 3228 extern mblk_t *ip_check_and_align_header(mblk_t *, uint_t, ip_recv_attr_t *); 3229 extern mblk_t *ip_check_length(mblk_t *, uchar_t *, ssize_t, uint_t, uint_t, 3230 ip_recv_attr_t *); 3231 extern mblk_t *ip_check_optlen(mblk_t *, ipha_t *, uint_t, uint_t, 3232 ip_recv_attr_t *); 3233 extern mblk_t *ip_fix_dbref(mblk_t *, ip_recv_attr_t *); 3234 extern uint_t ip_cksum(mblk_t *, int, uint32_t); 3235 extern int ip_close(queue_t *, int, cred_t *); 3236 extern uint16_t ip_csum_hdr(ipha_t *); 3237 extern void ip_forward_xmit_v4(nce_t *, ill_t *, mblk_t *, ipha_t *, 3238 ip_recv_attr_t *, uint32_t, uint32_t); 3239 extern boolean_t ip_forward_options(mblk_t *, ipha_t *, ill_t *, 3240 ip_recv_attr_t *); 3241 extern int ip_fragment_v4(mblk_t *, nce_t *, iaflags_t, uint_t, uint32_t, 3242 uint32_t, zoneid_t, zoneid_t, pfirepostfrag_t postfragfn, 3243 uintptr_t *cookie); 3244 extern void ip_proto_not_sup(mblk_t *, ip_recv_attr_t *); 3245 extern void ip_ire_g_fini(void); 3246 extern void ip_ire_g_init(void); 3247 extern void ip_ire_fini(ip_stack_t *); 3248 extern void ip_ire_init(ip_stack_t *); 3249 extern void ip_mdata_to_mhi(ill_t *, mblk_t *, struct mac_header_info_s *); 3250 extern int ip_openv4(queue_t *q, dev_t *devp, int flag, int sflag, 3251 cred_t *credp); 3252 extern int ip_openv6(queue_t *q, dev_t *devp, int flag, int sflag, 3253 cred_t *credp); 3254 extern int ip_reassemble(mblk_t *, ipf_t *, uint_t, boolean_t, ill_t *, 3255 size_t); 3256 extern int ip_rput(queue_t *, mblk_t *); 3257 extern void ip_input(ill_t *, ill_rx_ring_t *, mblk_t *, 3258 struct mac_header_info_s *); 3259 extern void ip_input_v6(ill_t *, ill_rx_ring_t *, mblk_t *, 3260 struct mac_header_info_s *); 3261 extern mblk_t *ip_input_common_v4(ill_t *, ill_rx_ring_t *, mblk_t *, 3262 struct mac_header_info_s *, squeue_t *, mblk_t **, uint_t *); 3263 extern mblk_t *ip_input_common_v6(ill_t *, ill_rx_ring_t *, mblk_t *, 3264 struct mac_header_info_s *, squeue_t *, mblk_t **, uint_t *); 3265 extern void ill_input_full_v4(mblk_t *, void *, void *, 3266 ip_recv_attr_t *, rtc_t *); 3267 extern void ill_input_short_v4(mblk_t *, void *, void *, 3268 ip_recv_attr_t *, rtc_t *); 3269 extern void ill_input_full_v6(mblk_t *, void *, void *, 3270 ip_recv_attr_t *, rtc_t *); 3271 extern void ill_input_short_v6(mblk_t *, void *, void *, 3272 ip_recv_attr_t *, rtc_t *); 3273 extern ipaddr_t ip_input_options(ipha_t *, ipaddr_t, mblk_t *, 3274 ip_recv_attr_t *, int *); 3275 extern boolean_t ip_input_local_options(mblk_t *, ipha_t *, ip_recv_attr_t *); 3276 extern mblk_t *ip_input_fragment(mblk_t *, ipha_t *, ip_recv_attr_t *); 3277 extern mblk_t *ip_input_fragment_v6(mblk_t *, ip6_t *, ip6_frag_t *, uint_t, 3278 ip_recv_attr_t *); 3279 extern void ip_input_post_ipsec(mblk_t *, ip_recv_attr_t *); 3280 extern void ip_fanout_v4(mblk_t *, ipha_t *, ip_recv_attr_t *); 3281 extern void ip_fanout_v6(mblk_t *, ip6_t *, ip_recv_attr_t *); 3282 extern void ip_fanout_proto_conn(conn_t *, mblk_t *, ipha_t *, ip6_t *, 3283 ip_recv_attr_t *); 3284 extern void ip_fanout_proto_v4(mblk_t *, ipha_t *, ip_recv_attr_t *); 3285 extern void ip_fanout_send_icmp_v4(mblk_t *, uint_t, uint_t, 3286 ip_recv_attr_t *); 3287 extern void ip_fanout_udp_conn(conn_t *, mblk_t *, ipha_t *, ip6_t *, 3288 ip_recv_attr_t *); 3289 extern void ip_fanout_udp_multi_v4(mblk_t *, ipha_t *, uint16_t, uint16_t, 3290 ip_recv_attr_t *); 3291 extern mblk_t *zero_spi_check(mblk_t *, ip_recv_attr_t *); 3292 extern void ip_build_hdrs_v4(uchar_t *, uint_t, const ip_pkt_t *, uint8_t); 3293 extern int ip_find_hdr_v4(ipha_t *, ip_pkt_t *, boolean_t); 3294 extern int ip_total_hdrs_len_v4(const ip_pkt_t *); 3295 3296 extern mblk_t *ip_accept_tcp(ill_t *, ill_rx_ring_t *, squeue_t *, 3297 mblk_t *, mblk_t **, uint_t *cnt); 3298 extern void ip_rput_dlpi(ill_t *, mblk_t *); 3299 extern void ip_rput_notdata(ill_t *, mblk_t *); 3300 3301 extern void ip_mib2_add_ip_stats(mib2_ipIfStatsEntry_t *, 3302 mib2_ipIfStatsEntry_t *); 3303 extern void ip_mib2_add_icmp6_stats(mib2_ipv6IfIcmpEntry_t *, 3304 mib2_ipv6IfIcmpEntry_t *); 3305 extern void ip_rput_other(ipsq_t *, queue_t *, mblk_t *, void *); 3306 extern ire_t *ip_check_multihome(void *, ire_t *, ill_t *); 3307 extern void ip_send_potential_redirect_v4(mblk_t *, ipha_t *, ire_t *, 3308 ip_recv_attr_t *); 3309 extern int ip_set_destination_v4(ipaddr_t *, ipaddr_t, ipaddr_t, 3310 ip_xmit_attr_t *, iulp_t *, uint32_t, uint_t); 3311 extern int ip_set_destination_v6(in6_addr_t *, const in6_addr_t *, 3312 const in6_addr_t *, ip_xmit_attr_t *, iulp_t *, uint32_t, uint_t); 3313 3314 extern int ip_output_simple(mblk_t *, ip_xmit_attr_t *); 3315 extern int ip_output_simple_v4(mblk_t *, ip_xmit_attr_t *); 3316 extern int ip_output_simple_v6(mblk_t *, ip_xmit_attr_t *); 3317 extern int ip_output_options(mblk_t *, ipha_t *, ip_xmit_attr_t *, 3318 ill_t *); 3319 extern void ip_output_local_options(ipha_t *, ip_stack_t *); 3320 3321 extern ip_xmit_attr_t *conn_get_ixa(conn_t *, boolean_t); 3322 extern ip_xmit_attr_t *conn_get_ixa_tryhard(conn_t *, boolean_t); 3323 extern ip_xmit_attr_t *conn_replace_ixa(conn_t *, ip_xmit_attr_t *); 3324 extern ip_xmit_attr_t *conn_get_ixa_exclusive(conn_t *); 3325 extern ip_xmit_attr_t *ip_xmit_attr_duplicate(ip_xmit_attr_t *); 3326 extern void ip_xmit_attr_replace_tsl(ip_xmit_attr_t *, ts_label_t *); 3327 extern void ip_xmit_attr_restore_tsl(ip_xmit_attr_t *, cred_t *); 3328 boolean_t ip_recv_attr_replace_label(ip_recv_attr_t *, ts_label_t *); 3329 extern void ixa_inactive(ip_xmit_attr_t *); 3330 extern void ixa_refrele(ip_xmit_attr_t *); 3331 extern boolean_t ixa_check_drain_insert(conn_t *, ip_xmit_attr_t *); 3332 extern void ixa_cleanup(ip_xmit_attr_t *); 3333 extern void ira_cleanup(ip_recv_attr_t *, boolean_t); 3334 extern void ixa_safe_copy(ip_xmit_attr_t *, ip_xmit_attr_t *); 3335 3336 extern int conn_ip_output(mblk_t *, ip_xmit_attr_t *); 3337 extern boolean_t ip_output_verify_local(ip_xmit_attr_t *); 3338 extern mblk_t *ip_output_process_local(mblk_t *, ip_xmit_attr_t *, boolean_t, 3339 boolean_t, conn_t *); 3340 3341 extern int conn_opt_get(conn_opt_arg_t *, t_scalar_t, t_scalar_t, 3342 uchar_t *); 3343 extern int conn_opt_set(conn_opt_arg_t *, t_scalar_t, t_scalar_t, uint_t, 3344 uchar_t *, boolean_t, cred_t *); 3345 extern boolean_t conn_same_as_last_v4(conn_t *, sin_t *); 3346 extern boolean_t conn_same_as_last_v6(conn_t *, sin6_t *); 3347 extern int conn_update_label(const conn_t *, const ip_xmit_attr_t *, 3348 const in6_addr_t *, ip_pkt_t *); 3349 3350 extern int ip_opt_set_multicast_group(conn_t *, t_scalar_t, 3351 uchar_t *, boolean_t, boolean_t); 3352 extern int ip_opt_set_multicast_sources(conn_t *, t_scalar_t, 3353 uchar_t *, boolean_t, boolean_t); 3354 extern int conn_getsockname(conn_t *, struct sockaddr *, uint_t *); 3355 extern int conn_getpeername(conn_t *, struct sockaddr *, uint_t *); 3356 3357 extern int conn_build_hdr_template(conn_t *, uint_t, uint_t, 3358 const in6_addr_t *, const in6_addr_t *, uint32_t); 3359 extern mblk_t *conn_prepend_hdr(ip_xmit_attr_t *, const ip_pkt_t *, 3360 const in6_addr_t *, const in6_addr_t *, uint8_t, uint32_t, uint_t, 3361 mblk_t *, uint_t, uint_t, uint32_t *, int *); 3362 extern void ip_attr_newdst(ip_xmit_attr_t *); 3363 extern void ip_attr_nexthop(const ip_pkt_t *, const ip_xmit_attr_t *, 3364 const in6_addr_t *, in6_addr_t *); 3365 extern int conn_connect(conn_t *, iulp_t *, uint32_t); 3366 extern int ip_attr_connect(const conn_t *, ip_xmit_attr_t *, 3367 const in6_addr_t *, const in6_addr_t *, const in6_addr_t *, in_port_t, 3368 in6_addr_t *, iulp_t *, uint32_t); 3369 extern int conn_inherit_parent(conn_t *, conn_t *); 3370 3371 extern void conn_ixa_cleanup(conn_t *connp, void *arg); 3372 3373 extern boolean_t conn_wantpacket(conn_t *, ip_recv_attr_t *, ipha_t *); 3374 extern uint_t ip_type_v4(ipaddr_t, ip_stack_t *); 3375 extern uint_t ip_type_v6(const in6_addr_t *, ip_stack_t *); 3376 3377 extern int ip_wput_nondata(queue_t *, mblk_t *); 3378 extern int ip_wsrv(queue_t *); 3379 extern char *ip_nv_lookup(nv_t *, int); 3380 extern boolean_t ip_local_addr_ok_v6(const in6_addr_t *, const in6_addr_t *); 3381 extern boolean_t ip_remote_addr_ok_v6(const in6_addr_t *, const in6_addr_t *); 3382 extern ipaddr_t ip_massage_options(ipha_t *, netstack_t *); 3383 extern ipaddr_t ip_net_mask(ipaddr_t); 3384 extern void arp_bringup_done(ill_t *, int); 3385 extern void arp_replumb_done(ill_t *, int); 3386 3387 extern struct qinit iprinitv6; 3388 3389 extern void ipmp_init(ip_stack_t *); 3390 extern void ipmp_destroy(ip_stack_t *); 3391 extern ipmp_grp_t *ipmp_grp_create(const char *, phyint_t *); 3392 extern void ipmp_grp_destroy(ipmp_grp_t *); 3393 extern void ipmp_grp_info(const ipmp_grp_t *, lifgroupinfo_t *); 3394 extern int ipmp_grp_rename(ipmp_grp_t *, const char *); 3395 extern ipmp_grp_t *ipmp_grp_lookup(const char *, ip_stack_t *); 3396 extern int ipmp_grp_vet_phyint(ipmp_grp_t *, phyint_t *); 3397 extern ipmp_illgrp_t *ipmp_illgrp_create(ill_t *); 3398 extern void ipmp_illgrp_destroy(ipmp_illgrp_t *); 3399 extern ill_t *ipmp_illgrp_add_ipif(ipmp_illgrp_t *, ipif_t *); 3400 extern void ipmp_illgrp_del_ipif(ipmp_illgrp_t *, ipif_t *); 3401 extern ill_t *ipmp_illgrp_next_ill(ipmp_illgrp_t *); 3402 extern ill_t *ipmp_illgrp_hold_next_ill(ipmp_illgrp_t *); 3403 extern ill_t *ipmp_illgrp_hold_cast_ill(ipmp_illgrp_t *); 3404 extern ill_t *ipmp_illgrp_ipmp_ill(ipmp_illgrp_t *); 3405 extern void ipmp_illgrp_refresh_mtu(ipmp_illgrp_t *); 3406 extern ipmp_arpent_t *ipmp_illgrp_create_arpent(ipmp_illgrp_t *, 3407 boolean_t, ipaddr_t, uchar_t *, size_t, uint16_t); 3408 extern void ipmp_illgrp_destroy_arpent(ipmp_illgrp_t *, ipmp_arpent_t *); 3409 extern ipmp_arpent_t *ipmp_illgrp_lookup_arpent(ipmp_illgrp_t *, ipaddr_t *); 3410 extern void ipmp_illgrp_refresh_arpent(ipmp_illgrp_t *); 3411 extern void ipmp_illgrp_mark_arpent(ipmp_illgrp_t *, ipmp_arpent_t *); 3412 extern ill_t *ipmp_illgrp_find_ill(ipmp_illgrp_t *, uchar_t *, uint_t); 3413 extern void ipmp_illgrp_link_grp(ipmp_illgrp_t *, ipmp_grp_t *); 3414 extern int ipmp_illgrp_unlink_grp(ipmp_illgrp_t *); 3415 extern uint_t ipmp_ill_get_ipmp_ifindex(const ill_t *); 3416 extern void ipmp_ill_join_illgrp(ill_t *, ipmp_illgrp_t *); 3417 extern void ipmp_ill_leave_illgrp(ill_t *); 3418 extern ill_t *ipmp_ill_hold_ipmp_ill(ill_t *); 3419 extern ill_t *ipmp_ill_hold_xmit_ill(ill_t *, boolean_t); 3420 extern boolean_t ipmp_ill_is_active(ill_t *); 3421 extern void ipmp_ill_refresh_active(ill_t *); 3422 extern void ipmp_phyint_join_grp(phyint_t *, ipmp_grp_t *); 3423 extern void ipmp_phyint_leave_grp(phyint_t *); 3424 extern void ipmp_phyint_refresh_active(phyint_t *); 3425 extern ill_t *ipmp_ipif_bound_ill(const ipif_t *); 3426 extern ill_t *ipmp_ipif_hold_bound_ill(const ipif_t *); 3427 extern boolean_t ipmp_ipif_is_dataaddr(const ipif_t *); 3428 extern boolean_t ipmp_ipif_is_stubaddr(const ipif_t *); 3429 extern boolean_t ipmp_packet_is_probe(mblk_t *, ill_t *); 3430 extern void ipmp_ncec_delete_nce(ncec_t *); 3431 extern void ipmp_ncec_refresh_nce(ncec_t *); 3432 3433 extern void conn_drain_insert(conn_t *, idl_tx_list_t *); 3434 extern void conn_setqfull(conn_t *, boolean_t *); 3435 extern void conn_clrqfull(conn_t *, boolean_t *); 3436 extern int conn_ipsec_length(conn_t *); 3437 extern ipaddr_t ip_get_dst(ipha_t *); 3438 extern uint_t ip_get_pmtu(ip_xmit_attr_t *); 3439 extern uint_t ip_get_base_mtu(ill_t *, ire_t *); 3440 extern mblk_t *ip_output_attach_policy(mblk_t *, ipha_t *, ip6_t *, 3441 const conn_t *, ip_xmit_attr_t *); 3442 extern int ipsec_out_extra_length(ip_xmit_attr_t *); 3443 extern int ipsec_out_process(mblk_t *, ip_xmit_attr_t *); 3444 extern int ip_output_post_ipsec(mblk_t *, ip_xmit_attr_t *); 3445 extern void ipsec_out_to_in(ip_xmit_attr_t *, ill_t *ill, 3446 ip_recv_attr_t *); 3447 3448 extern void ire_cleanup(ire_t *); 3449 extern void ire_inactive(ire_t *); 3450 extern boolean_t irb_inactive(irb_t *); 3451 extern ire_t *ire_unlink(irb_t *); 3452 3453 #ifdef DEBUG 3454 extern boolean_t th_trace_ref(const void *, ip_stack_t *); 3455 extern void th_trace_unref(const void *); 3456 extern void th_trace_cleanup(const void *, boolean_t); 3457 extern void ire_trace_ref(ire_t *); 3458 extern void ire_untrace_ref(ire_t *); 3459 #endif 3460 3461 extern int ip_srcid_insert(const in6_addr_t *, zoneid_t, ip_stack_t *); 3462 extern int ip_srcid_remove(const in6_addr_t *, zoneid_t, ip_stack_t *); 3463 extern boolean_t ip_srcid_find_id(uint_t, in6_addr_t *, zoneid_t, boolean_t, 3464 netstack_t *); 3465 extern uint_t ip_srcid_find_addr(const in6_addr_t *, zoneid_t, netstack_t *); 3466 3467 extern uint8_t ipoptp_next(ipoptp_t *); 3468 extern uint8_t ipoptp_first(ipoptp_t *, ipha_t *); 3469 extern int ip_opt_get_user(conn_t *, uchar_t *); 3470 extern int ipsec_req_from_conn(conn_t *, ipsec_req_t *, int); 3471 extern int ip_snmp_get(queue_t *q, mblk_t *mctl, int level, boolean_t); 3472 extern int ip_snmp_set(queue_t *q, int, int, uchar_t *, int); 3473 extern void ip_process_ioctl(ipsq_t *, queue_t *, mblk_t *, void *); 3474 extern void ip_quiesce_conn(conn_t *); 3475 extern void ip_reprocess_ioctl(ipsq_t *, queue_t *, mblk_t *, void *); 3476 extern void ip_ioctl_finish(queue_t *, mblk_t *, int, int, ipsq_t *); 3477 3478 extern boolean_t ip_cmpbuf(const void *, uint_t, boolean_t, const void *, 3479 uint_t); 3480 extern boolean_t ip_allocbuf(void **, uint_t *, boolean_t, const void *, 3481 uint_t); 3482 extern void ip_savebuf(void **, uint_t *, boolean_t, const void *, uint_t); 3483 3484 extern boolean_t ipsq_pending_mp_cleanup(ill_t *, conn_t *); 3485 extern void conn_ioctl_cleanup(conn_t *); 3486 3487 extern void ip_unbind(conn_t *); 3488 3489 extern void tnet_init(void); 3490 extern void tnet_fini(void); 3491 3492 /* 3493 * Hook functions to enable cluster networking 3494 * On non-clustered systems these vectors must always be NULL. 3495 */ 3496 extern int (*cl_inet_isclusterwide)(netstackid_t stack_id, uint8_t protocol, 3497 sa_family_t addr_family, uint8_t *laddrp, void *args); 3498 extern uint32_t (*cl_inet_ipident)(netstackid_t stack_id, uint8_t protocol, 3499 sa_family_t addr_family, uint8_t *laddrp, uint8_t *faddrp, 3500 void *args); 3501 extern int (*cl_inet_connect2)(netstackid_t stack_id, uint8_t protocol, 3502 boolean_t is_outgoing, sa_family_t addr_family, uint8_t *laddrp, 3503 in_port_t lport, uint8_t *faddrp, in_port_t fport, void *args); 3504 extern void (*cl_inet_getspi)(netstackid_t, uint8_t, uint8_t *, size_t, 3505 void *); 3506 extern void (*cl_inet_getspi)(netstackid_t stack_id, uint8_t protocol, 3507 uint8_t *ptr, size_t len, void *args); 3508 extern int (*cl_inet_checkspi)(netstackid_t stack_id, uint8_t protocol, 3509 uint32_t spi, void *args); 3510 extern void (*cl_inet_deletespi)(netstackid_t stack_id, uint8_t protocol, 3511 uint32_t spi, void *args); 3512 extern void (*cl_inet_idlesa)(netstackid_t, uint8_t, uint32_t, 3513 sa_family_t, in6_addr_t, in6_addr_t, void *); 3514 3515 3516 /* Hooks for CGTP (multirt routes) filtering module */ 3517 #define CGTP_FILTER_REV_1 1 3518 #define CGTP_FILTER_REV_2 2 3519 #define CGTP_FILTER_REV_3 3 3520 #define CGTP_FILTER_REV CGTP_FILTER_REV_3 3521 3522 /* cfo_filter and cfo_filter_v6 hooks return values */ 3523 #define CGTP_IP_PKT_NOT_CGTP 0 3524 #define CGTP_IP_PKT_PREMIUM 1 3525 #define CGTP_IP_PKT_DUPLICATE 2 3526 3527 /* Version 3 of the filter interface */ 3528 typedef struct cgtp_filter_ops { 3529 int cfo_filter_rev; /* CGTP_FILTER_REV_3 */ 3530 int (*cfo_change_state)(netstackid_t, int); 3531 int (*cfo_add_dest_v4)(netstackid_t, ipaddr_t, ipaddr_t, 3532 ipaddr_t, ipaddr_t); 3533 int (*cfo_del_dest_v4)(netstackid_t, ipaddr_t, ipaddr_t); 3534 int (*cfo_add_dest_v6)(netstackid_t, in6_addr_t *, in6_addr_t *, 3535 in6_addr_t *, in6_addr_t *); 3536 int (*cfo_del_dest_v6)(netstackid_t, in6_addr_t *, in6_addr_t *); 3537 int (*cfo_filter)(netstackid_t, uint_t, mblk_t *); 3538 int (*cfo_filter_v6)(netstackid_t, uint_t, ip6_t *, 3539 ip6_frag_t *); 3540 } cgtp_filter_ops_t; 3541 3542 #define CGTP_MCAST_SUCCESS 1 3543 3544 /* 3545 * The separate CGTP module needs this global symbol so that it 3546 * can check the version and determine whether to use the old or the new 3547 * version of the filtering interface. 3548 */ 3549 extern int ip_cgtp_filter_rev; 3550 3551 extern int ip_cgtp_filter_supported(void); 3552 extern int ip_cgtp_filter_register(netstackid_t, cgtp_filter_ops_t *); 3553 extern int ip_cgtp_filter_unregister(netstackid_t); 3554 extern int ip_cgtp_filter_is_registered(netstackid_t); 3555 3556 /* 3557 * rr_ring_state cycles in the order shown below from RR_FREE through 3558 * RR_FREE_IN_PROG and back to RR_FREE. 3559 */ 3560 typedef enum { 3561 RR_FREE, /* Free slot */ 3562 RR_SQUEUE_UNBOUND, /* Ring's squeue is unbound */ 3563 RR_SQUEUE_BIND_INPROG, /* Ring's squeue bind in progress */ 3564 RR_SQUEUE_BOUND, /* Ring's squeue bound to cpu */ 3565 RR_FREE_INPROG /* Ring is being freed */ 3566 } ip_ring_state_t; 3567 3568 #define ILL_MAX_RINGS 256 /* Max num of rx rings we can manage */ 3569 #define ILL_POLLING 0x01 /* Polling in use */ 3570 3571 /* 3572 * These functions pointer types are exported by the mac/dls layer. 3573 * we need to duplicate the definitions here because we cannot 3574 * include mac/dls header files here. 3575 */ 3576 typedef boolean_t (*ip_mac_intr_disable_t)(void *); 3577 typedef int (*ip_mac_intr_enable_t)(void *); 3578 typedef ip_mac_tx_cookie_t (*ip_dld_tx_t)(void *, mblk_t *, 3579 uint64_t, uint16_t); 3580 typedef void (*ip_flow_enable_t)(void *, ip_mac_tx_cookie_t); 3581 typedef void *(*ip_dld_callb_t)(void *, 3582 ip_flow_enable_t, void *); 3583 typedef boolean_t (*ip_dld_fctl_t)(void *, ip_mac_tx_cookie_t); 3584 typedef int (*ip_capab_func_t)(void *, uint_t, 3585 void *, uint_t); 3586 3587 /* 3588 * POLLING README 3589 * sq_get_pkts() is called to pick packets from softring in poll mode. It 3590 * calls rr_rx to get the chain and process it with rr_ip_accept. 3591 * rr_rx = mac_soft_ring_poll() to pick packets 3592 * rr_ip_accept = ip_accept_tcp() to process packets 3593 */ 3594 3595 /* 3596 * XXX: With protocol, service specific squeues, they will have 3597 * specific acceptor functions. 3598 */ 3599 typedef mblk_t *(*ip_mac_rx_t)(void *, size_t); 3600 typedef mblk_t *(*ip_accept_t)(ill_t *, ill_rx_ring_t *, 3601 squeue_t *, mblk_t *, mblk_t **, uint_t *); 3602 3603 /* 3604 * rr_intr_enable, rr_intr_disable, rr_rx_handle, rr_rx: 3605 * May be accessed while in the squeue AND after checking that SQS_POLL_CAPAB 3606 * is set. 3607 * 3608 * rr_ring_state: Protected by ill_lock. 3609 */ 3610 struct ill_rx_ring { 3611 ip_mac_intr_disable_t rr_intr_disable; /* Interrupt disabling func */ 3612 ip_mac_intr_enable_t rr_intr_enable; /* Interrupt enabling func */ 3613 void *rr_intr_handle; /* Handle interrupt funcs */ 3614 ip_mac_rx_t rr_rx; /* Driver receive function */ 3615 ip_accept_t rr_ip_accept; /* IP accept function */ 3616 void *rr_rx_handle; /* Handle for Rx ring */ 3617 squeue_t *rr_sqp; /* Squeue the ring is bound to */ 3618 ill_t *rr_ill; /* back pointer to ill */ 3619 ip_ring_state_t rr_ring_state; /* State of this ring */ 3620 }; 3621 3622 /* 3623 * IP - DLD direct function call capability 3624 * Suffixes, df - dld function, dh - dld handle, 3625 * cf - client (IP) function, ch - client handle 3626 */ 3627 typedef struct ill_dld_direct_s { /* DLD provided driver Tx */ 3628 ip_dld_tx_t idd_tx_df; /* str_mdata_fastpath_put */ 3629 void *idd_tx_dh; /* dld_str_t *dsp */ 3630 ip_dld_callb_t idd_tx_cb_df; /* mac_tx_srs_notify */ 3631 void *idd_tx_cb_dh; /* mac_client_handle_t *mch */ 3632 ip_dld_fctl_t idd_tx_fctl_df; /* mac_tx_is_flow_blocked */ 3633 void *idd_tx_fctl_dh; /* mac_client_handle */ 3634 } ill_dld_direct_t; 3635 3636 /* IP - DLD polling capability */ 3637 typedef struct ill_dld_poll_s { 3638 ill_rx_ring_t idp_ring_tbl[ILL_MAX_RINGS]; 3639 } ill_dld_poll_t; 3640 3641 /* Describes ill->ill_dld_capab */ 3642 struct ill_dld_capab_s { 3643 ip_capab_func_t idc_capab_df; /* dld_capab_func */ 3644 void *idc_capab_dh; /* dld_str_t *dsp */ 3645 ill_dld_direct_t idc_direct; 3646 ill_dld_poll_t idc_poll; 3647 }; 3648 3649 /* 3650 * IP squeues exports 3651 */ 3652 extern boolean_t ip_squeue_fanout; 3653 3654 #define IP_SQUEUE_GET(hint) ip_squeue_random(hint) 3655 3656 extern void ip_squeue_init(void (*)(squeue_t *)); 3657 extern squeue_t *ip_squeue_random(uint_t); 3658 extern squeue_t *ip_squeue_get(ill_rx_ring_t *); 3659 extern squeue_t *ip_squeue_getfree(pri_t); 3660 extern int ip_squeue_cpu_move(squeue_t *, processorid_t); 3661 extern void *ip_squeue_add_ring(ill_t *, void *); 3662 extern void ip_squeue_bind_ring(ill_t *, ill_rx_ring_t *, processorid_t); 3663 extern void ip_squeue_clean_ring(ill_t *, ill_rx_ring_t *); 3664 extern void ip_squeue_quiesce_ring(ill_t *, ill_rx_ring_t *); 3665 extern void ip_squeue_restart_ring(ill_t *, ill_rx_ring_t *); 3666 extern void ip_squeue_clean_all(ill_t *); 3667 extern boolean_t ip_source_routed(ipha_t *, ip_stack_t *); 3668 3669 extern int tcp_wput(queue_t *, mblk_t *); 3670 3671 extern int ip_fill_mtuinfo(conn_t *, ip_xmit_attr_t *, 3672 struct ip6_mtuinfo *); 3673 extern hook_t *ipobs_register_hook(netstack_t *, pfv_t); 3674 extern void ipobs_unregister_hook(netstack_t *, hook_t *); 3675 extern void ipobs_hook(mblk_t *, int, zoneid_t, zoneid_t, const ill_t *, 3676 ip_stack_t *); 3677 typedef void (*ipsq_func_t)(ipsq_t *, queue_t *, mblk_t *, void *); 3678 3679 extern void dce_g_init(void); 3680 extern void dce_g_destroy(void); 3681 extern void dce_stack_init(ip_stack_t *); 3682 extern void dce_stack_destroy(ip_stack_t *); 3683 extern void dce_cleanup(uint_t, ip_stack_t *); 3684 extern dce_t *dce_get_default(ip_stack_t *); 3685 extern dce_t *dce_lookup_pkt(mblk_t *, ip_xmit_attr_t *, uint_t *); 3686 extern dce_t *dce_lookup_v4(ipaddr_t, ip_stack_t *, uint_t *); 3687 extern dce_t *dce_lookup_v6(const in6_addr_t *, uint_t, ip_stack_t *, 3688 uint_t *); 3689 extern dce_t *dce_lookup_and_add_v4(ipaddr_t, ip_stack_t *); 3690 extern dce_t *dce_lookup_and_add_v6(const in6_addr_t *, uint_t, 3691 ip_stack_t *); 3692 extern int dce_update_uinfo_v4(ipaddr_t, iulp_t *, ip_stack_t *); 3693 extern int dce_update_uinfo_v6(const in6_addr_t *, uint_t, iulp_t *, 3694 ip_stack_t *); 3695 extern int dce_update_uinfo(const in6_addr_t *, uint_t, iulp_t *, 3696 ip_stack_t *); 3697 extern void dce_increment_generation(dce_t *); 3698 extern void dce_increment_all_generations(boolean_t, ip_stack_t *); 3699 extern void dce_refrele(dce_t *); 3700 extern void dce_refhold(dce_t *); 3701 extern void dce_refrele_notr(dce_t *); 3702 extern void dce_refhold_notr(dce_t *); 3703 mblk_t *ip_snmp_get_mib2_ip_dce(queue_t *, mblk_t *, ip_stack_t *ipst); 3704 3705 extern ip_laddr_t ip_laddr_verify_v4(ipaddr_t, zoneid_t, 3706 ip_stack_t *, boolean_t); 3707 extern ip_laddr_t ip_laddr_verify_v6(const in6_addr_t *, zoneid_t, 3708 ip_stack_t *, boolean_t, uint_t); 3709 extern int ip_laddr_fanout_insert(conn_t *); 3710 3711 extern boolean_t ip_verify_src(mblk_t *, ip_xmit_attr_t *, uint_t *); 3712 extern int ip_verify_ire(mblk_t *, ip_xmit_attr_t *); 3713 3714 extern mblk_t *ip_xmit_attr_to_mblk(ip_xmit_attr_t *); 3715 extern boolean_t ip_xmit_attr_from_mblk(mblk_t *, ip_xmit_attr_t *); 3716 extern mblk_t *ip_xmit_attr_free_mblk(mblk_t *); 3717 extern mblk_t *ip_recv_attr_to_mblk(ip_recv_attr_t *); 3718 extern boolean_t ip_recv_attr_from_mblk(mblk_t *, ip_recv_attr_t *); 3719 extern mblk_t *ip_recv_attr_free_mblk(mblk_t *); 3720 extern boolean_t ip_recv_attr_is_mblk(mblk_t *); 3721 3722 #ifdef __PRAGMA_REDEFINE_EXTNAME 3723 #pragma redefine_extname inet_ntop _inet_ntop 3724 #pragma redefine_extname inet_pton _inet_pton 3725 #else 3726 #define inet_ntop _inet_ntop 3727 #define inet_pton _inet_pton 3728 #endif /* __PRAGMA_REDEFINE_EXTNAME */ 3729 3730 extern char *inet_ntop(int, const void *, char *, int); 3731 extern int inet_pton(int, char *, void *); 3732 3733 /* 3734 * Squeue tags. Tags only need to be unique when the callback function is the 3735 * same to distinguish between different calls, but we use unique tags for 3736 * convenience anyway. 3737 */ 3738 #define SQTAG_IP_INPUT 1 3739 #define SQTAG_TCP_INPUT_ICMP_ERR 2 3740 #define SQTAG_TCP6_INPUT_ICMP_ERR 3 3741 #define SQTAG_IP_TCP_INPUT 4 3742 #define SQTAG_IP6_TCP_INPUT 5 3743 #define SQTAG_IP_TCP_CLOSE 6 3744 #define SQTAG_TCP_OUTPUT 7 3745 #define SQTAG_TCP_TIMER 8 3746 #define SQTAG_TCP_TIMEWAIT 9 3747 #define SQTAG_TCP_ACCEPT_FINISH 10 3748 #define SQTAG_TCP_ACCEPT_FINISH_Q0 11 3749 #define SQTAG_TCP_ACCEPT_PENDING 12 3750 #define SQTAG_TCP_LISTEN_DISCON 13 3751 #define SQTAG_TCP_CONN_REQ_1 14 3752 #define SQTAG_TCP_EAGER_BLOWOFF 15 3753 #define SQTAG_TCP_EAGER_CLEANUP 16 3754 #define SQTAG_TCP_EAGER_CLEANUP_Q0 17 3755 #define SQTAG_TCP_CONN_IND 18 3756 #define SQTAG_TCP_RSRV 19 3757 #define SQTAG_TCP_ABORT_BUCKET 20 3758 #define SQTAG_TCP_REINPUT 21 3759 #define SQTAG_TCP_REINPUT_EAGER 22 3760 #define SQTAG_TCP_INPUT_MCTL 23 3761 #define SQTAG_TCP_RPUTOTHER 24 3762 #define SQTAG_IP_PROTO_AGAIN 25 3763 #define SQTAG_IP_FANOUT_TCP 26 3764 #define SQTAG_IPSQ_CLEAN_RING 27 3765 #define SQTAG_TCP_WPUT_OTHER 28 3766 #define SQTAG_TCP_CONN_REQ_UNBOUND 29 3767 #define SQTAG_TCP_SEND_PENDING 30 3768 #define SQTAG_BIND_RETRY 31 3769 #define SQTAG_UDP_FANOUT 32 3770 #define SQTAG_UDP_INPUT 33 3771 #define SQTAG_UDP_WPUT 34 3772 #define SQTAG_UDP_OUTPUT 35 3773 #define SQTAG_TCP_KSSL_INPUT 36 3774 #define SQTAG_TCP_DROP_Q0 37 3775 #define SQTAG_TCP_CONN_REQ_2 38 3776 #define SQTAG_IP_INPUT_RX_RING 39 3777 #define SQTAG_SQUEUE_CHANGE 40 3778 #define SQTAG_CONNECT_FINISH 41 3779 #define SQTAG_SYNCHRONOUS_OP 42 3780 #define SQTAG_TCP_SHUTDOWN_OUTPUT 43 3781 #define SQTAG_TCP_IXA_CLEANUP 44 3782 #define SQTAG_TCP_SEND_SYNACK 45 3783 3784 extern sin_t sin_null; /* Zero address for quick clears */ 3785 extern sin6_t sin6_null; /* Zero address for quick clears */ 3786 3787 #endif /* _KERNEL */ 3788 3789 #ifdef __cplusplus 3790 } 3791 #endif 3792 3793 #endif /* _INET_IP_H */ 3794