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 * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #ifndef _INET_IPCLASSIFIER_H 27 #define _INET_IPCLASSIFIER_H 28 29 #ifdef __cplusplus 30 extern "C" { 31 #endif 32 33 #include <inet/common.h> 34 #include <inet/ip.h> 35 #include <inet/mi.h> 36 #include <inet/tcp.h> 37 #include <inet/ip6.h> 38 #include <netinet/in.h> /* for IPPROTO_* constants */ 39 #include <sys/sdt.h> 40 #include <sys/socket_proto.h> 41 #include <sys/sunddi.h> 42 #include <sys/sunldi.h> 43 44 typedef void (*edesc_spf)(void *, mblk_t *, void *, int); 45 typedef void (*edesc_rpf)(void *, mblk_t *, void *); 46 47 /* 48 * ============================== 49 * = The CONNECTION = 50 * ============================== 51 */ 52 53 /* 54 * The connection structure contains the common information/flags/ref needed. 55 * Implementation will keep the connection struct, the layers (with their 56 * respective data for event i.e. tcp_t if event was tcp_input) all in one 57 * contiguous memory location. 58 */ 59 60 /* Conn Flags */ 61 /* Unused 0x00020000 */ 62 /* Unused 0x00040000 */ 63 #define IPCL_FULLY_BOUND 0x00080000 /* Bound to correct squeue */ 64 #define IPCL_CHECK_POLICY 0x00100000 /* Needs policy checking */ 65 #define IPCL_SOCKET 0x00200000 /* Sockfs connection */ 66 #define IPCL_ACCEPTOR 0x00400000 /* Sockfs priv acceptor */ 67 #define IPCL_CL_LISTENER 0x00800000 /* Cluster listener */ 68 #define IPCL_EAGER 0x01000000 /* Incoming connection */ 69 /* Unused 0x02000000 */ 70 #define IPCL_TCP6 0x04000000 /* AF_INET6 TCP */ 71 #define IPCL_TCP4 0x08000000 /* IPv4 packet format TCP */ 72 /* Unused 0x10000000 */ 73 /* Unused 0x20000000 */ 74 #define IPCL_CONNECTED 0x40000000 /* Conn in connected table */ 75 #define IPCL_BOUND 0x80000000 /* Conn in bind table */ 76 77 /* Flags identifying the type of conn */ 78 #define IPCL_TCPCONN 0x00000001 /* From tcp_conn_cache */ 79 #define IPCL_SCTPCONN 0x00000002 /* From sctp_conn_cache */ 80 #define IPCL_IPCCONN 0x00000004 /* From ip_conn_cache */ 81 #define IPCL_UDPCONN 0x00000008 /* From udp_conn_cache */ 82 #define IPCL_RAWIPCONN 0x00000010 /* From rawip_conn_cache */ 83 #define IPCL_RTSCONN 0x00000020 /* From rts_conn_cache */ 84 #define IPCL_ISV6 0x00000040 /* AF_INET6 */ 85 #define IPCL_IPTUN 0x00000080 /* Has "tun" plumbed above it */ 86 #define IPCL_NONSTR 0x00001000 /* A non-STREAMS socket */ 87 #define IPCL_IN_SQUEUE 0x10000000 /* Waiting squeue to finish */ 88 89 /* Conn Masks */ 90 #define IPCL_TCP (IPCL_TCP4|IPCL_TCP6) 91 #define IPCL_REMOVED 0x00000100 92 #define IPCL_REUSED 0x00000200 93 94 /* The packet format is IPv4; could be an AF_INET or AF_INET6 socket */ 95 #define IPCL_IS_TCP4(connp) \ 96 (((connp)->conn_flags & IPCL_TCP4)) 97 98 /* Connected AF_INET with no IPsec policy */ 99 #define IPCL_IS_TCP4_CONNECTED_NO_POLICY(connp) \ 100 (((connp)->conn_flags & \ 101 (IPCL_TCP4|IPCL_CONNECTED|IPCL_CHECK_POLICY|IPCL_TCP6)) \ 102 == (IPCL_TCP4|IPCL_CONNECTED)) 103 104 #define IPCL_IS_CONNECTED(connp) \ 105 ((connp)->conn_flags & IPCL_CONNECTED) 106 107 #define IPCL_IS_BOUND(connp) \ 108 ((connp)->conn_flags & IPCL_BOUND) 109 110 /* AF_INET TCP that is bound */ 111 #define IPCL_IS_TCP4_BOUND(connp) \ 112 (((connp)->conn_flags & \ 113 (IPCL_TCP4|IPCL_BOUND|IPCL_TCP6)) == \ 114 (IPCL_TCP4|IPCL_BOUND)) 115 116 #define IPCL_IS_FULLY_BOUND(connp) \ 117 ((connp)->conn_flags & IPCL_FULLY_BOUND) 118 119 /* 120 * Can't use conn_protocol since we need to tell difference 121 * between a real TCP socket and a SOCK_RAW, IPPROTO_TCP. 122 */ 123 #define IPCL_IS_TCP(connp) \ 124 ((connp)->conn_flags & IPCL_TCPCONN) 125 126 #define IPCL_IS_SCTP(connp) \ 127 ((connp)->conn_flags & IPCL_SCTPCONN) 128 129 #define IPCL_IS_UDP(connp) \ 130 ((connp)->conn_flags & IPCL_UDPCONN) 131 132 #define IPCL_IS_RAWIP(connp) \ 133 ((connp)->conn_flags & IPCL_RAWIPCONN) 134 135 #define IPCL_IS_RTS(connp) \ 136 ((connp)->conn_flags & IPCL_RTSCONN) 137 138 /* FIXME: Isn't it sufficient to check IPCL_IPTUN? */ 139 #define IPCL_IS_IPTUN(connp) \ 140 (((connp)->conn_ulp == IPPROTO_ENCAP || \ 141 (connp)->conn_ulp == IPPROTO_IPV6) && \ 142 ((connp)->conn_flags & IPCL_IPTUN)) 143 144 #define IPCL_IS_NONSTR(connp) ((connp)->conn_flags & IPCL_NONSTR) 145 146 typedef struct connf_s connf_t; 147 148 typedef struct 149 { 150 int ctb_depth; 151 #define CONN_STACK_DEPTH 15 152 pc_t ctb_stack[CONN_STACK_DEPTH]; 153 } conn_trace_t; 154 155 typedef struct ip_helper_minor_info_s { 156 dev_t ip_minfo_dev; /* Device */ 157 vmem_t *ip_minfo_arena; /* Arena */ 158 } ip_helper_minfo_t; 159 160 /* 161 * ip helper stream info 162 */ 163 typedef struct ip_helper_stream_info_s { 164 ldi_handle_t iphs_handle; 165 queue_t *iphs_rq; 166 queue_t *iphs_wq; 167 ip_helper_minfo_t *iphs_minfo; 168 } ip_helper_stream_info_t; 169 170 /* 171 * The initial fields in the conn_t are setup by the kmem_cache constructor, 172 * and are preserved when it is freed. Fields after that are bzero'ed when 173 * the conn_t is freed. 174 */ 175 struct conn_s { 176 kmutex_t conn_lock; 177 uint32_t conn_ref; /* Reference counter */ 178 uint32_t conn_flags; /* Conn Flags */ 179 180 181 union { 182 tcp_t *cp_tcp; /* Pointer to the tcp struct */ 183 struct udp_s *cp_udp; /* Pointer to the udp struct */ 184 struct icmp_s *cp_icmp; /* Pointer to rawip struct */ 185 struct rts_s *cp_rts; /* Pointer to rts struct */ 186 void *cp_priv; 187 } conn_proto_priv; 188 #define conn_tcp conn_proto_priv.cp_tcp 189 #define conn_udp conn_proto_priv.cp_udp 190 #define conn_icmp conn_proto_priv.cp_icmp 191 #define conn_rts conn_proto_priv.cp_rts 192 #define conn_priv conn_proto_priv.cp_priv 193 194 kcondvar_t conn_cv; 195 uint8_t conn_ulp; /* protocol type */ 196 197 edesc_rpf conn_recv; /* Pointer to recv routine */ 198 199 /* Fields after this are bzero'ed when the conn_t is freed. */ 200 201 squeue_t *conn_sqp; /* Squeue for processing */ 202 uint_t conn_state_flags; /* IP state flags */ 203 #define conn_start_clr conn_state_flags 204 205 ire_t *conn_ire_cache; /* outbound ire cache */ 206 unsigned int 207 conn_on_sqp : 1, /* Conn is being processed */ 208 conn_dontroute : 1, /* SO_DONTROUTE state */ 209 conn_loopback : 1, /* SO_LOOPBACK state */ 210 conn_broadcast : 1, /* SO_BROADCAST state */ 211 212 conn_reuseaddr : 1, /* SO_REUSEADDR state */ 213 conn_multicast_loop : 1, /* IP_MULTICAST_LOOP */ 214 conn_multi_router : 1, /* Wants all multicast pkts */ 215 conn_draining : 1, /* ip_wsrv running */ 216 217 conn_did_putbq : 1, /* ip_wput did a putbq */ 218 conn_unspec_src : 1, /* IP_UNSPEC_SRC */ 219 conn_policy_cached : 1, /* Is policy cached/latched ? */ 220 conn_in_enforce_policy : 1, /* Enforce Policy on inbound */ 221 222 conn_out_enforce_policy : 1, /* Enforce Policy on outbound */ 223 conn_af_isv6 : 1, /* ip address family ver 6 */ 224 conn_pkt_isv6 : 1, /* ip packet format ver 6 */ 225 conn_ip_recvpktinfo : 1, /* IPV*_RECVPKTINFO option */ 226 227 conn_ipv6_recvhoplimit : 1, /* IPV6_RECVHOPLIMIT option */ 228 conn_ipv6_recvhopopts : 1, /* IPV6_RECVHOPOPTS option */ 229 conn_ipv6_recvdstopts : 1, /* IPV6_RECVDSTOPTS option */ 230 conn_ipv6_recvrthdr : 1, /* IPV6_RECVRTHDR option */ 231 232 conn_ipv6_recvrtdstopts : 1, /* IPV6_RECVRTHDRDSTOPTS */ 233 conn_ipv6_v6only : 1, /* IPV6_V6ONLY */ 234 conn_ipv6_recvtclass : 1, /* IPV6_RECVTCLASS */ 235 conn_ipv6_recvpathmtu : 1, /* IPV6_RECVPATHMTU */ 236 237 conn_pathmtu_valid : 1, /* The cached mtu is valid. */ 238 conn_ipv6_dontfrag : 1, /* IPV6_DONTFRAG */ 239 conn_fully_bound : 1, /* Fully bound connection */ 240 conn_recvif : 1, /* IP_RECVIF option */ 241 242 conn_recvslla : 1, /* IP_RECVSLLA option */ 243 conn_mdt_ok : 1, /* MDT is permitted */ 244 conn_nexthop_set : 1, 245 conn_allzones : 1; /* SO_ALLZONES */ 246 247 unsigned int 248 conn_lso_ok : 1; /* LSO is usable */ 249 250 squeue_t *conn_initial_sqp; /* Squeue at open time */ 251 squeue_t *conn_final_sqp; /* Squeue after connect */ 252 ill_t *conn_nofailover_ill; /* Failover ill */ 253 ill_t *conn_dhcpinit_ill; /* IP_DHCPINIT_IF */ 254 ipsec_latch_t *conn_latch; /* latched state */ 255 ill_t *conn_outgoing_ill; /* IP{,V6}_BOUND_IF */ 256 edesc_spf conn_send; /* Pointer to send routine */ 257 queue_t *conn_rq; /* Read queue */ 258 queue_t *conn_wq; /* Write queue */ 259 dev_t conn_dev; /* Minor number */ 260 vmem_t *conn_minor_arena; /* Minor arena */ 261 ip_helper_stream_info_t *conn_helper_info; 262 263 cred_t *conn_cred; /* Credentials */ 264 connf_t *conn_g_fanout; /* Global Hash bucket head */ 265 struct conn_s *conn_g_next; /* Global Hash chain next */ 266 struct conn_s *conn_g_prev; /* Global Hash chain prev */ 267 struct ipsec_policy_head_s *conn_policy; /* Configured policy */ 268 in6_addr_t conn_bound_source_v6; 269 #define conn_bound_source V4_PART_OF_V6(conn_bound_source_v6) 270 271 connf_t *conn_fanout; /* Hash bucket we're part of */ 272 struct conn_s *conn_next; /* Hash chain next */ 273 struct conn_s *conn_prev; /* Hash chain prev */ 274 struct { 275 in6_addr_t connua_laddr; /* Local address */ 276 in6_addr_t connua_faddr; /* Remote address */ 277 } connua_v6addr; 278 #define conn_src V4_PART_OF_V6(connua_v6addr.connua_laddr) 279 #define conn_rem V4_PART_OF_V6(connua_v6addr.connua_faddr) 280 #define conn_srcv6 connua_v6addr.connua_laddr 281 #define conn_remv6 connua_v6addr.connua_faddr 282 union { 283 /* Used for classifier match performance */ 284 uint32_t conn_ports2; 285 struct { 286 in_port_t tcpu_fport; /* Remote port */ 287 in_port_t tcpu_lport; /* Local port */ 288 } tcpu_ports; 289 } u_port; 290 #define conn_fport u_port.tcpu_ports.tcpu_fport 291 #define conn_lport u_port.tcpu_ports.tcpu_lport 292 #define conn_ports u_port.conn_ports2 293 #define conn_upq conn_rq 294 uint8_t conn_unused_byte; 295 296 uint_t conn_proto; /* SO_PROTOTYPE state */ 297 ill_t *conn_incoming_ill; /* IP{,V6}_BOUND_IF */ 298 ill_t *conn_outgoing_pill; /* IP{,V6}_BOUND_PIF */ 299 ill_t *conn_oper_pending_ill; /* pending shared ioctl */ 300 301 ilg_t *conn_ilg; /* Group memberships */ 302 int conn_ilg_allocated; /* Number allocated */ 303 int conn_ilg_inuse; /* Number currently used */ 304 int conn_ilg_walker_cnt; /* No of ilg walkers */ 305 /* XXXX get rid of this, once ilg_delete_all is fixed */ 306 kcondvar_t conn_refcv; 307 308 struct ipif_s *conn_multicast_ipif; /* IP_MULTICAST_IF */ 309 ill_t *conn_multicast_ill; /* IPV6_MULTICAST_IF */ 310 int conn_orig_bound_ifindex; /* BOUND_IF before MOVE */ 311 int conn_orig_multicast_ifindex; 312 /* IPv6 MC IF before MOVE */ 313 struct conn_s *conn_drain_next; /* Next conn in drain list */ 314 struct conn_s *conn_drain_prev; /* Prev conn in drain list */ 315 idl_t *conn_idl; /* Ptr to the drain list head */ 316 mblk_t *conn_ipsec_opt_mp; /* ipsec option mblk */ 317 uint32_t conn_src_preferences; /* prefs for src addr select */ 318 /* mtuinfo from IPV6_PACKET_TOO_BIG conditional on conn_pathmtu_valid */ 319 struct ip6_mtuinfo mtuinfo; 320 zoneid_t conn_zoneid; /* zone connection is in */ 321 in6_addr_t conn_nexthop_v6; /* nexthop IP address */ 322 uchar_t conn_broadcast_ttl; /* IP_BROADCAST_TTL */ 323 #define conn_nexthop_v4 V4_PART_OF_V6(conn_nexthop_v6) 324 cred_t *conn_peercred; /* Peer credentials, if any */ 325 326 kcondvar_t conn_sq_cv; /* For non-STREAMS socket IO */ 327 kthread_t *conn_sq_caller; /* Caller of squeue sync ops */ 328 sock_upcalls_t *conn_upcalls; /* Upcalls to sockfs */ 329 sock_upper_handle_t conn_upper_handle; /* Upper handle: sonode * */ 330 331 unsigned int 332 conn_ulp_labeled : 1, /* ULP label is synced */ 333 conn_mlp_type : 2, /* mlp_type_t; tsol/tndb.h */ 334 conn_anon_mlp : 1, /* user wants anon MLP */ 335 336 conn_anon_port : 1, /* user bound anonymously */ 337 conn_mac_exempt : 1, /* unlabeled with loose MAC */ 338 conn_spare : 26; 339 340 boolean_t conn_flow_cntrld; 341 netstack_t *conn_netstack; /* Corresponds to a netstack_hold */ 342 #ifdef CONN_DEBUG 343 #define CONN_TRACE_MAX 10 344 int conn_trace_last; /* ndx of last used tracebuf */ 345 conn_trace_t conn_trace_buf[CONN_TRACE_MAX]; 346 #endif 347 }; 348 349 #define CONN_CRED(connp) ((connp)->conn_peercred == NULL ? \ 350 (connp)->conn_cred : (connp)->conn_peercred) 351 #define BEST_CRED(mp, connp) ((DB_CRED(mp) != NULL && \ 352 crgetlabel(DB_CRED(mp)) != NULL) ? DB_CRED(mp) : CONN_CRED(connp)) 353 354 /* 355 * connf_t - connection fanout data. 356 * 357 * The hash tables and their linkage (conn_t.{hashnextp, hashprevp} are 358 * protected by the per-bucket lock. Each conn_t inserted in the list 359 * points back at the connf_t that heads the bucket. 360 */ 361 struct connf_s { 362 struct conn_s *connf_head; 363 kmutex_t connf_lock; 364 }; 365 366 #define CONN_INC_REF(connp) { \ 367 mutex_enter(&(connp)->conn_lock); \ 368 DTRACE_PROBE1(conn__inc__ref, conn_t *, connp); \ 369 ASSERT(conn_trace_ref(connp)); \ 370 (connp)->conn_ref++; \ 371 ASSERT((connp)->conn_ref != 0); \ 372 mutex_exit(&(connp)->conn_lock); \ 373 } 374 375 #define CONN_INC_REF_LOCKED(connp) { \ 376 DTRACE_PROBE1(conn__inc__ref, conn_t *, connp); \ 377 ASSERT(MUTEX_HELD(&(connp)->conn_lock)); \ 378 ASSERT(conn_trace_ref(connp)); \ 379 (connp)->conn_ref++; \ 380 ASSERT((connp)->conn_ref != 0); \ 381 } 382 383 #define CONN_DEC_REF(connp) { \ 384 mutex_enter(&(connp)->conn_lock); \ 385 DTRACE_PROBE1(conn__dec__ref, conn_t *, connp); \ 386 /* \ 387 * The squeue framework always does a CONN_DEC_REF after return \ 388 * from TCP. Hence the refcnt must be at least 2 if conn_on_sqp \ 389 * is B_TRUE and conn_ref is being decremented. This is to \ 390 * account for the mblk being currently processed. \ 391 */ \ 392 if ((connp)->conn_ref <= 0 || \ 393 ((connp)->conn_ref == 1 && (connp)->conn_on_sqp)) \ 394 cmn_err(CE_PANIC, "CONN_DEC_REF: connp(%p) has ref " \ 395 "= %d\n", (void *)(connp), (connp)->conn_ref); \ 396 ASSERT(conn_untrace_ref(connp)); \ 397 (connp)->conn_ref--; \ 398 if ((connp)->conn_ref == 0) { \ 399 /* Refcnt can't increase again, safe to drop lock */ \ 400 mutex_exit(&(connp)->conn_lock); \ 401 ipcl_conn_destroy(connp); \ 402 } else { \ 403 cv_broadcast(&(connp)->conn_cv); \ 404 mutex_exit(&(connp)->conn_lock); \ 405 } \ 406 } 407 408 /* 409 * For use with subsystems within ip which use ALL_ZONES as a wildcard 410 */ 411 #define IPCL_ZONEID(connp) \ 412 ((connp)->conn_allzones ? ALL_ZONES : (connp)->conn_zoneid) 413 414 /* 415 * For matching between a conn_t and a zoneid. 416 */ 417 #define IPCL_ZONE_MATCH(connp, zoneid) \ 418 (((connp)->conn_allzones) || \ 419 ((zoneid) == ALL_ZONES) || \ 420 (connp)->conn_zoneid == (zoneid)) 421 422 423 #define _IPCL_V4_MATCH(v6addr, v4addr) \ 424 (V4_PART_OF_V6((v6addr)) == (v4addr) && IN6_IS_ADDR_V4MAPPED(&(v6addr))) 425 426 #define _IPCL_V4_MATCH_ANY(addr) \ 427 (IN6_IS_ADDR_V4MAPPED_ANY(&(addr)) || IN6_IS_ADDR_UNSPECIFIED(&(addr))) 428 429 430 /* 431 * IPCL_PROTO_MATCH() only matches conns with the specified zoneid, while 432 * IPCL_PROTO_MATCH_V6() can match other conns in the multicast case, see 433 * ip_fanout_proto(). 434 */ 435 #define IPCL_PROTO_MATCH(connp, protocol, ipha, ill, \ 436 fanout_flags, zoneid) \ 437 ((((connp)->conn_src == INADDR_ANY) || \ 438 (((connp)->conn_src == ((ipha)->ipha_dst)) && \ 439 (((connp)->conn_rem == INADDR_ANY) || \ 440 ((connp)->conn_rem == ((ipha)->ipha_src))))) && \ 441 IPCL_ZONE_MATCH(connp, zoneid) && \ 442 (conn_wantpacket((connp), (ill), (ipha), (fanout_flags), \ 443 (zoneid)) || ((protocol) == IPPROTO_PIM) || \ 444 ((protocol) == IPPROTO_RSVP))) 445 446 #define IPCL_PROTO_MATCH_V6(connp, protocol, ip6h, ill, \ 447 fanout_flags, zoneid) \ 448 ((IN6_IS_ADDR_UNSPECIFIED(&(connp)->conn_srcv6) || \ 449 (IN6_ARE_ADDR_EQUAL(&(connp)->conn_srcv6, &((ip6h)->ip6_dst)) && \ 450 (IN6_IS_ADDR_UNSPECIFIED(&(connp)->conn_remv6) || \ 451 IN6_ARE_ADDR_EQUAL(&(connp)->conn_remv6, &((ip6h)->ip6_src))))) && \ 452 (conn_wantpacket_v6((connp), (ill), (ip6h), \ 453 (fanout_flags), (zoneid)) || ((protocol) == IPPROTO_RSVP))) 454 455 #define IPCL_CONN_HASH(src, ports, ipst) \ 456 ((unsigned)(ntohl((src)) ^ ((ports) >> 24) ^ ((ports) >> 16) ^ \ 457 ((ports) >> 8) ^ (ports)) % (ipst)->ips_ipcl_conn_fanout_size) 458 459 #define IPCL_CONN_HASH_V6(src, ports, ipst) \ 460 IPCL_CONN_HASH(V4_PART_OF_V6((src)), (ports), (ipst)) 461 462 #define IPCL_CONN_MATCH(connp, proto, src, dst, ports) \ 463 ((connp)->conn_ulp == (proto) && \ 464 (connp)->conn_ports == (ports) && \ 465 _IPCL_V4_MATCH((connp)->conn_remv6, (src)) && \ 466 _IPCL_V4_MATCH((connp)->conn_srcv6, (dst)) && \ 467 !(connp)->conn_ipv6_v6only) 468 469 #define IPCL_CONN_MATCH_V6(connp, proto, src, dst, ports) \ 470 ((connp)->conn_ulp == (proto) && \ 471 (connp)->conn_ports == (ports) && \ 472 IN6_ARE_ADDR_EQUAL(&(connp)->conn_remv6, &(src)) && \ 473 IN6_ARE_ADDR_EQUAL(&(connp)->conn_srcv6, &(dst))) 474 475 #define IPCL_CONN_INIT(connp, protocol, src, rem, ports) { \ 476 (connp)->conn_ulp = protocol; \ 477 IN6_IPADDR_TO_V4MAPPED(src, &(connp)->conn_srcv6); \ 478 IN6_IPADDR_TO_V4MAPPED(rem, &(connp)->conn_remv6); \ 479 (connp)->conn_ports = ports; \ 480 } 481 482 #define IPCL_CONN_INIT_V6(connp, protocol, src, rem, ports) { \ 483 (connp)->conn_ulp = protocol; \ 484 (connp)->conn_srcv6 = src; \ 485 (connp)->conn_remv6 = rem; \ 486 (connp)->conn_ports = ports; \ 487 } 488 489 #define IPCL_PORT_HASH(port, size) \ 490 ((((port) >> 8) ^ (port)) & ((size) - 1)) 491 492 #define IPCL_BIND_HASH(lport, ipst) \ 493 ((unsigned)(((lport) >> 8) ^ (lport)) % \ 494 (ipst)->ips_ipcl_bind_fanout_size) 495 496 #define IPCL_BIND_MATCH(connp, proto, laddr, lport) \ 497 ((connp)->conn_ulp == (proto) && \ 498 (connp)->conn_lport == (lport) && \ 499 (_IPCL_V4_MATCH_ANY((connp)->conn_srcv6) || \ 500 _IPCL_V4_MATCH((connp)->conn_srcv6, (laddr))) && \ 501 !(connp)->conn_ipv6_v6only) 502 503 #define IPCL_BIND_MATCH_V6(connp, proto, laddr, lport) \ 504 ((connp)->conn_ulp == (proto) && \ 505 (connp)->conn_lport == (lport) && \ 506 (IN6_ARE_ADDR_EQUAL(&(connp)->conn_srcv6, &(laddr)) || \ 507 IN6_IS_ADDR_UNSPECIFIED(&(connp)->conn_srcv6))) 508 509 #define IPCL_UDP_MATCH(connp, lport, laddr, fport, faddr) \ 510 (((connp)->conn_lport == (lport)) && \ 511 ((_IPCL_V4_MATCH_ANY((connp)->conn_srcv6) || \ 512 (_IPCL_V4_MATCH((connp)->conn_srcv6, (laddr)) && \ 513 (_IPCL_V4_MATCH_ANY((connp)->conn_remv6) || \ 514 (_IPCL_V4_MATCH((connp)->conn_remv6, (faddr)) && \ 515 (connp)->conn_fport == (fport)))))) && \ 516 !(connp)->conn_ipv6_v6only) 517 518 #define IPCL_UDP_MATCH_V6(connp, lport, laddr, fport, faddr) \ 519 (((connp)->conn_lport == (lport)) && \ 520 (IN6_IS_ADDR_UNSPECIFIED(&(connp)->conn_srcv6) || \ 521 (IN6_ARE_ADDR_EQUAL(&(connp)->conn_srcv6, &(laddr)) && \ 522 (IN6_IS_ADDR_UNSPECIFIED(&(connp)->conn_remv6) || \ 523 (IN6_ARE_ADDR_EQUAL(&(connp)->conn_remv6, &(faddr)) && \ 524 (connp)->conn_fport == (fport)))))) 525 526 #define IPCL_TCP_EAGER_INIT(connp, protocol, src, rem, ports) { \ 527 (connp)->conn_flags |= (IPCL_TCP4|IPCL_EAGER); \ 528 IN6_IPADDR_TO_V4MAPPED(src, &(connp)->conn_srcv6); \ 529 IN6_IPADDR_TO_V4MAPPED(rem, &(connp)->conn_remv6); \ 530 (connp)->conn_ports = ports; \ 531 (connp)->conn_send = ip_output; \ 532 (connp)->conn_sqp = IP_SQUEUE_GET(lbolt); \ 533 (connp)->conn_initial_sqp = (connp)->conn_sqp; \ 534 } 535 536 #define IPCL_TCP_EAGER_INIT_V6(connp, protocol, src, rem, ports) { \ 537 (connp)->conn_flags |= (IPCL_TCP6|IPCL_EAGER|IPCL_ISV6); \ 538 (connp)->conn_srcv6 = src; \ 539 (connp)->conn_remv6 = rem; \ 540 (connp)->conn_ports = ports; \ 541 (connp)->conn_send = ip_output_v6; \ 542 (connp)->conn_sqp = IP_SQUEUE_GET(lbolt); \ 543 (connp)->conn_initial_sqp = (connp)->conn_sqp; \ 544 } 545 546 #define IPCL_UDP_HASH(lport, ipst) \ 547 IPCL_PORT_HASH(lport, (ipst)->ips_ipcl_udp_fanout_size) 548 549 #define CONN_G_HASH_SIZE 1024 550 551 /* Raw socket hash function. */ 552 #define IPCL_RAW_HASH(lport, ipst) \ 553 IPCL_PORT_HASH(lport, (ipst)->ips_ipcl_raw_fanout_size) 554 555 /* 556 * This is similar to IPCL_BIND_MATCH except that the local port check 557 * is changed to a wildcard port check. 558 */ 559 #define IPCL_RAW_MATCH(connp, proto, laddr) \ 560 ((connp)->conn_ulp == (proto) && \ 561 (connp)->conn_lport == 0 && \ 562 (_IPCL_V4_MATCH_ANY((connp)->conn_srcv6) || \ 563 _IPCL_V4_MATCH((connp)->conn_srcv6, (laddr)))) 564 565 #define IPCL_RAW_MATCH_V6(connp, proto, laddr) \ 566 ((connp)->conn_ulp == (proto) && \ 567 (connp)->conn_lport == 0 && \ 568 (IN6_IS_ADDR_UNSPECIFIED(&(connp)->conn_srcv6) || \ 569 IN6_ARE_ADDR_EQUAL(&(connp)->conn_srcv6, &(laddr)))) 570 571 /* Function prototypes */ 572 extern void ipcl_g_init(void); 573 extern void ipcl_init(ip_stack_t *); 574 extern void ipcl_g_destroy(void); 575 extern void ipcl_destroy(ip_stack_t *); 576 extern conn_t *ipcl_conn_create(uint32_t, int, netstack_t *); 577 extern void ipcl_conn_destroy(conn_t *); 578 579 void ipcl_hash_insert_wildcard(connf_t *, conn_t *); 580 void ipcl_hash_remove(conn_t *); 581 void ipcl_hash_remove_locked(conn_t *connp, connf_t *connfp); 582 583 extern int ipcl_bind_insert(conn_t *, uint8_t, ipaddr_t, uint16_t); 584 extern int ipcl_bind_insert_v6(conn_t *, uint8_t, const in6_addr_t *, 585 uint16_t); 586 extern int ipcl_conn_insert(conn_t *, uint8_t, ipaddr_t, ipaddr_t, 587 uint32_t); 588 extern int ipcl_conn_insert_v6(conn_t *, uint8_t, const in6_addr_t *, 589 const in6_addr_t *, uint32_t, uint_t); 590 extern conn_t *ipcl_get_next_conn(connf_t *, conn_t *, uint32_t); 591 592 void ipcl_proto_insert(conn_t *, uint8_t); 593 void ipcl_proto_insert_v6(conn_t *, uint8_t); 594 conn_t *ipcl_classify_v4(mblk_t *, uint8_t, uint_t, zoneid_t, ip_stack_t *); 595 conn_t *ipcl_classify_v6(mblk_t *, uint8_t, uint_t, zoneid_t, ip_stack_t *); 596 conn_t *ipcl_classify(mblk_t *, zoneid_t, ip_stack_t *); 597 conn_t *ipcl_classify_raw(mblk_t *, uint8_t, zoneid_t, uint32_t, ipha_t *, 598 ip_stack_t *); 599 void ipcl_globalhash_insert(conn_t *); 600 void ipcl_globalhash_remove(conn_t *); 601 void ipcl_walk(pfv_t, void *, ip_stack_t *); 602 conn_t *ipcl_tcp_lookup_reversed_ipv4(ipha_t *, tcph_t *, int, ip_stack_t *); 603 conn_t *ipcl_tcp_lookup_reversed_ipv6(ip6_t *, tcpha_t *, int, uint_t, 604 ip_stack_t *); 605 conn_t *ipcl_lookup_listener_v4(uint16_t, ipaddr_t, zoneid_t, ip_stack_t *); 606 conn_t *ipcl_lookup_listener_v6(uint16_t, in6_addr_t *, uint_t, zoneid_t, 607 ip_stack_t *); 608 int conn_trace_ref(conn_t *); 609 int conn_untrace_ref(conn_t *); 610 void ipcl_conn_cleanup(conn_t *); 611 conn_t *ipcl_conn_tcp_lookup_reversed_ipv4(conn_t *, ipha_t *, tcph_t *, 612 ip_stack_t *); 613 conn_t *ipcl_conn_tcp_lookup_reversed_ipv6(conn_t *, ip6_t *, tcph_t *, 614 ip_stack_t *); 615 616 extern int ip_create_helper_stream(conn_t *connp, ldi_ident_t li); 617 extern void ip_close_helper_stream(conn_t *connp); 618 619 extern int ip_get_options(conn_t *, int, int, void *, t_uscalar_t *, cred_t *); 620 extern int ip_set_options(conn_t *, int, int, const void *, t_uscalar_t, 621 cred_t *); 622 623 #ifdef __cplusplus 624 } 625 #endif 626 627 #endif /* _INET_IPCLASSIFIER_H */ 628