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