1/*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved. 5 * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved. 6 * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions are met: 10 * 11 * a) Redistributions of source code must retain the above copyright notice, 12 * this list of conditions and the following disclaimer. 13 * 14 * b) Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in 16 * the documentation and/or other materials provided with the distribution. 17 * 18 * c) Neither the name of Cisco Systems, Inc. nor the names of its 19 * contributors may be used to endorse or promote products derived 20 * from this software without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 23 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 24 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 26 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 32 * THE POSSIBILITY OF SUCH DAMAGE. 33 */ 34 35#include <sys/cdefs.h> 36__FBSDID("$FreeBSD$"); 37 38#ifndef _NETINET_SCTP_PCB_H_ 39#define _NETINET_SCTP_PCB_H_ 40 41#include <netinet/sctp_os.h> 42#include <netinet/sctp.h> 43#include <netinet/sctp_constants.h> 44#include <netinet/sctp_sysctl.h> 45 46LIST_HEAD(sctppcbhead, sctp_inpcb); 47LIST_HEAD(sctpasochead, sctp_tcb); 48LIST_HEAD(sctpladdr, sctp_laddr); 49LIST_HEAD(sctpvtaghead, sctp_tagblock); 50LIST_HEAD(sctp_vrflist, sctp_vrf); 51LIST_HEAD(sctp_ifnlist, sctp_ifn); 52LIST_HEAD(sctp_ifalist, sctp_ifa); 53TAILQ_HEAD(sctp_readhead, sctp_queued_to_read); 54TAILQ_HEAD(sctp_streamhead, sctp_stream_queue_pending); 55 56#include <netinet/sctp_structs.h> 57#include <netinet/sctp_auth.h> 58 59#define SCTP_PCBHASH_ALLADDR(port, mask) (port & mask) 60#define SCTP_PCBHASH_ASOC(tag, mask) (tag & mask) 61 62struct sctp_vrf { 63 LIST_ENTRY(sctp_vrf) next_vrf; 64 struct sctp_ifalist *vrf_addr_hash; 65 struct sctp_ifnlist ifnlist; 66 uint32_t vrf_id; 67 uint32_t tbl_id_v4; /* default v4 table id */ 68 uint32_t tbl_id_v6; /* default v6 table id */ 69 uint32_t total_ifa_count; 70 u_long vrf_addr_hashmark; 71 uint32_t refcount; 72}; 73 74struct sctp_ifn { 75 struct sctp_ifalist ifalist; 76 struct sctp_vrf *vrf; 77 LIST_ENTRY(sctp_ifn) next_ifn; 78 LIST_ENTRY(sctp_ifn) next_bucket; 79 void *ifn_p; /* never access without appropriate lock */ 80 uint32_t ifn_mtu; 81 uint32_t ifn_type; 82 uint32_t ifn_index; /* shorthand way to look at ifn for reference */ 83 uint32_t refcount; /* number of reference held should be >= 84 * ifa_count */ 85 uint32_t ifa_count; /* IFA's we hold (in our list - ifalist) */ 86 uint32_t num_v6; /* number of v6 addresses */ 87 uint32_t num_v4; /* number of v4 addresses */ 88 uint32_t registered_af; /* registered address family for i/f events */ 89 char ifn_name[SCTP_IFNAMSIZ]; 90}; 91 92/* SCTP local IFA flags */ 93#define SCTP_ADDR_VALID 0x00000001 /* its up and active */ 94#define SCTP_BEING_DELETED 0x00000002 /* being deleted, when 95 * refcount = 0. Note that it 96 * is pulled from the ifn list 97 * and ifa_p is nulled right 98 * away but it cannot be freed 99 * until the last *net 100 * pointing to it is deleted. */ 101#define SCTP_ADDR_DEFER_USE 0x00000004 /* Hold off using this one */ 102#define SCTP_ADDR_IFA_UNUSEABLE 0x00000008 103 104struct sctp_ifa { 105 LIST_ENTRY(sctp_ifa) next_ifa; 106 LIST_ENTRY(sctp_ifa) next_bucket; 107 struct sctp_ifn *ifn_p; /* back pointer to parent ifn */ 108 void *ifa; /* pointer to ifa, needed for flag update for 109 * that we MUST lock appropriate locks. This 110 * is for V6. */ 111 union sctp_sockstore address; 112 uint32_t refcount; /* number of folks referring to this */ 113 uint32_t flags; 114 uint32_t localifa_flags; 115 uint32_t vrf_id; /* vrf_id of this addr (for deleting) */ 116 uint8_t src_is_loop; 117 uint8_t src_is_priv; 118 uint8_t src_is_glob; 119 uint8_t resv; 120}; 121 122struct sctp_laddr { 123 LIST_ENTRY(sctp_laddr) sctp_nxt_addr; /* next in list */ 124 struct sctp_ifa *ifa; 125 uint32_t action; /* Used during asconf and adding if no-zero 126 * src-addr selection will not consider this 127 * address. */ 128 struct timeval start_time; /* time when this address was created */ 129}; 130 131struct sctp_block_entry { 132 int error; 133}; 134 135struct sctp_timewait { 136 uint32_t tv_sec_at_expire; /* the seconds from boot to expire */ 137 uint32_t v_tag; /* the vtag that can not be reused */ 138 uint16_t lport; /* the local port used in vtag */ 139 uint16_t rport; /* the remote port used in vtag */ 140}; 141 142struct sctp_tagblock { 143 LIST_ENTRY(sctp_tagblock) sctp_nxt_tagblock; 144 struct sctp_timewait vtag_block[SCTP_NUMBER_IN_VTAG_BLOCK]; 145}; 146 147struct sctp_epinfo { 148#ifdef INET 149 struct socket *udp4_tun_socket; 150#endif 151#ifdef INET6 152 struct socket *udp6_tun_socket; 153#endif 154 struct sctpasochead *sctp_asochash; 155 u_long hashasocmark; 156 157 struct sctppcbhead *sctp_ephash; 158 u_long hashmark; 159 160 /*- 161 * The TCP model represents a substantial overhead in that we get an 162 * additional hash table to keep explicit connections in. The 163 * listening TCP endpoint will exist in the usual ephash above and 164 * accept only INIT's. It will be incapable of sending off an INIT. 165 * When a dg arrives we must look in the normal ephash. If we find a 166 * TCP endpoint that will tell us to go to the specific endpoint 167 * hash and re-hash to find the right assoc/socket. If we find a UDP 168 * model socket we then must complete the lookup. If this fails, 169 * i.e. no association can be found then we must continue to see if 170 * a sctp_peeloff()'d socket is in the tcpephash (a spun off socket 171 * acts like a TCP model connected socket). 172 */ 173 struct sctppcbhead *sctp_tcpephash; 174 u_long hashtcpmark; 175 uint32_t hashtblsize; 176 177 struct sctp_vrflist *sctp_vrfhash; 178 u_long hashvrfmark; 179 180 struct sctp_ifnlist *vrf_ifn_hash; 181 u_long vrf_ifn_hashmark; 182 183 struct sctppcbhead listhead; 184 struct sctpladdr addr_wq; 185 186 /* ep zone info */ 187 sctp_zone_t ipi_zone_ep; 188 sctp_zone_t ipi_zone_asoc; 189 sctp_zone_t ipi_zone_laddr; 190 sctp_zone_t ipi_zone_net; 191 sctp_zone_t ipi_zone_chunk; 192 sctp_zone_t ipi_zone_readq; 193 sctp_zone_t ipi_zone_strmoq; 194 sctp_zone_t ipi_zone_asconf; 195 sctp_zone_t ipi_zone_asconf_ack; 196 197 struct rwlock ipi_ep_mtx; 198 struct mtx ipi_iterator_wq_mtx; 199 struct rwlock ipi_addr_mtx; 200 struct mtx ipi_pktlog_mtx; 201 struct mtx wq_addr_mtx; 202 uint32_t ipi_count_ep; 203 204 /* assoc/tcb zone info */ 205 uint32_t ipi_count_asoc; 206 207 /* local addrlist zone info */ 208 uint32_t ipi_count_laddr; 209 210 /* remote addrlist zone info */ 211 uint32_t ipi_count_raddr; 212 213 /* chunk structure list for output */ 214 uint32_t ipi_count_chunk; 215 216 /* socket queue zone info */ 217 uint32_t ipi_count_readq; 218 219 /* socket queue zone info */ 220 uint32_t ipi_count_strmoq; 221 222 /* Number of vrfs */ 223 uint32_t ipi_count_vrfs; 224 225 /* Number of ifns */ 226 uint32_t ipi_count_ifns; 227 228 /* Number of ifas */ 229 uint32_t ipi_count_ifas; 230 231 /* system wide number of free chunks hanging around */ 232 uint32_t ipi_free_chunks; 233 uint32_t ipi_free_strmoq; 234 235 struct sctpvtaghead vtag_timewait[SCTP_STACK_VTAG_HASH_SIZE]; 236 237 /* address work queue handling */ 238 struct sctp_timer addr_wq_timer; 239 240}; 241 242struct sctp_base_info { 243 /* 244 * All static structures that anchor the system must be here. 245 */ 246 struct sctp_epinfo sctppcbinfo; 247#if defined(SMP) && defined(SCTP_USE_PERCPU_STAT) 248 struct sctpstat *sctpstat; 249#else 250 struct sctpstat sctpstat; 251#endif 252 struct sctp_sysctl sctpsysctl; 253 uint8_t first_time; 254 char sctp_pcb_initialized; 255#if defined(SCTP_PACKET_LOGGING) 256 int packet_log_writers; 257 int packet_log_end; 258 uint8_t packet_log_buffer[SCTP_PACKET_LOG_SIZE]; 259#endif 260 eventhandler_tag eh_tag; 261}; 262 263/*- 264 * Here we have all the relevant information for each SCTP entity created. We 265 * will need to modify this as approprate. We also need to figure out how to 266 * access /dev/random. 267 */ 268struct sctp_pcb { 269 unsigned int time_of_secret_change; /* number of seconds from 270 * timeval.tv_sec */ 271 uint32_t secret_key[SCTP_HOW_MANY_SECRETS][SCTP_NUMBER_OF_SECRETS]; 272 unsigned int size_of_a_cookie; 273 274 uint32_t sctp_timeoutticks[SCTP_NUM_TMRS]; 275 uint32_t sctp_minrto; 276 uint32_t sctp_maxrto; 277 uint32_t initial_rto; 278 uint32_t initial_init_rto_max; 279 280 unsigned int sctp_sack_freq; 281 uint32_t sctp_sws_sender; 282 uint32_t sctp_sws_receiver; 283 284 uint32_t sctp_default_cc_module; 285 uint32_t sctp_default_ss_module; 286 /* authentication related fields */ 287 struct sctp_keyhead shared_keys; 288 sctp_auth_chklist_t *local_auth_chunks; 289 sctp_hmaclist_t *local_hmacs; 290 uint16_t default_keyid; 291 uint32_t default_mtu; 292 293 /* various thresholds */ 294 /* Max times I will init at a guy */ 295 uint16_t max_init_times; 296 297 /* Max times I will send before we consider someone dead */ 298 uint16_t max_send_times; 299 300 uint16_t def_net_failure; 301 302 uint16_t def_net_pf_threshold; 303 304 /* number of streams to pre-open on a association */ 305 uint16_t pre_open_stream_count; 306 uint16_t max_open_streams_intome; 307 308 /* random number generator */ 309 uint32_t random_counter; 310 uint8_t random_numbers[SCTP_SIGNATURE_ALOC_SIZE]; 311 uint8_t random_store[SCTP_SIGNATURE_ALOC_SIZE]; 312 313 /* 314 * This timer is kept running per endpoint. When it fires it will 315 * change the secret key. The default is once a hour 316 */ 317 struct sctp_timer signature_change; 318 319 uint32_t def_cookie_life; 320 /* defaults to 0 */ 321 uint32_t auto_close_time; 322 uint32_t initial_sequence_debug; 323 uint32_t adaptation_layer_indicator; 324 uint8_t adaptation_layer_indicator_provided; 325 uint32_t store_at; 326 uint32_t max_burst; 327 uint32_t fr_max_burst; 328#ifdef INET6 329 uint32_t default_flowlabel; 330#endif 331 uint8_t default_dscp; 332 char current_secret_number; 333 char last_secret_number; 334 uint16_t port; /* remote UDP encapsulation port */ 335}; 336 337#ifndef SCTP_ALIGNMENT 338#define SCTP_ALIGNMENT 32 339#endif 340 341#ifndef SCTP_ALIGNM1 342#define SCTP_ALIGNM1 (SCTP_ALIGNMENT-1) 343#endif 344 345#define sctp_lport ip_inp.inp.inp_lport 346 347struct sctp_pcbtsn_rlog { 348 uint32_t vtag; 349 uint16_t strm; 350 uint16_t seq; 351 uint16_t sz; 352 uint16_t flgs; 353}; 354#define SCTP_READ_LOG_SIZE 135 /* we choose the number to make a pcb a page */ 355 356struct sctp_inpcb { 357 /*- 358 * put an inpcb in front of it all, kind of a waste but we need to 359 * for compatibility with all the other stuff. 360 */ 361 union { 362 struct inpcb inp; 363 char align[(sizeof(struct inpcb) + SCTP_ALIGNM1) & 364 ~SCTP_ALIGNM1]; 365 } ip_inp; 366 367 /* Socket buffer lock protects read_queue and of course sb_cc */ 368 struct sctp_readhead read_queue; 369 370 LIST_ENTRY(sctp_inpcb) sctp_list; /* lists all endpoints */ 371 /* hash of all endpoints for model */ 372 LIST_ENTRY(sctp_inpcb) sctp_hash; 373 /* count of local addresses bound, 0 if bound all */ 374 int laddr_count; 375 376 /* list of addrs in use by the EP, NULL if bound-all */ 377 struct sctpladdr sctp_addr_list; 378 /* 379 * used for source address selection rotation when we are subset 380 * bound 381 */ 382 struct sctp_laddr *next_addr_touse; 383 384 /* back pointer to our socket */ 385 struct socket *sctp_socket; 386 uint64_t sctp_features; /* Feature flags */ 387 uint32_t sctp_flags; /* INP state flag set */ 388 uint32_t sctp_mobility_features; /* Mobility Feature flags */ 389 struct sctp_pcb sctp_ep; /* SCTP ep data */ 390 /* head of the hash of all associations */ 391 struct sctpasochead *sctp_tcbhash; 392 u_long sctp_hashmark; 393 /* head of the list of all associations */ 394 struct sctpasochead sctp_asoc_list; 395#ifdef SCTP_TRACK_FREED_ASOCS 396 struct sctpasochead sctp_asoc_free_list; 397#endif 398 struct sctp_iterator *inp_starting_point_for_iterator; 399 uint32_t sctp_frag_point; 400 uint32_t partial_delivery_point; 401 uint32_t sctp_context; 402 uint32_t max_cwnd; 403 uint8_t local_strreset_support; 404 uint32_t sctp_cmt_on_off; 405 uint8_t ecn_supported; 406 uint8_t prsctp_supported; 407 uint8_t auth_supported; 408 uint8_t idata_supported; 409 uint8_t asconf_supported; 410 uint8_t reconfig_supported; 411 uint8_t nrsack_supported; 412 uint8_t pktdrop_supported; 413 struct sctp_nonpad_sndrcvinfo def_send; 414 /*- 415 * These three are here for the sosend_dgram 416 * (pkt, pkt_last and control). 417 * routine. However, I don't think anyone in 418 * the current FreeBSD kernel calls this. So 419 * they are candidates with sctp_sendm for 420 * de-supporting. 421 */ 422 struct mbuf *pkt, *pkt_last; 423 struct mbuf *control; 424 struct mtx inp_mtx; 425 struct mtx inp_create_mtx; 426 struct mtx inp_rdata_mtx; 427 int32_t refcount; 428 uint32_t def_vrf_id; 429 uint16_t fibnum; 430 uint32_t total_sends; 431 uint32_t total_recvs; 432 uint32_t last_abort_code; 433 uint32_t total_nospaces; 434 struct sctpasochead *sctp_asocidhash; 435 u_long hashasocidmark; 436 uint32_t sctp_associd_counter; 437 438#ifdef SCTP_ASOCLOG_OF_TSNS 439 struct sctp_pcbtsn_rlog readlog[SCTP_READ_LOG_SIZE]; 440 uint32_t readlog_index; 441#endif 442}; 443 444struct sctp_tcb { 445 struct socket *sctp_socket; /* back pointer to socket */ 446 struct sctp_inpcb *sctp_ep; /* back pointer to ep */ 447 LIST_ENTRY(sctp_tcb) sctp_tcbhash; /* next link in hash 448 * table */ 449 LIST_ENTRY(sctp_tcb) sctp_tcblist; /* list of all of the 450 * TCB's */ 451 LIST_ENTRY(sctp_tcb) sctp_tcbasocidhash; /* next link in asocid 452 * hash table */ 453 LIST_ENTRY(sctp_tcb) sctp_asocs; /* vtag hash list */ 454 struct sctp_block_entry *block_entry; /* pointer locked by socket 455 * send buffer */ 456 struct sctp_association asoc; 457 /*- 458 * freed_by_sorcv_sincelast is protected by the sockbuf_lock NOT the 459 * tcb_lock. Its special in this way to help avoid extra mutex calls 460 * in the reading of data. 461 */ 462 uint32_t freed_by_sorcv_sincelast; 463 uint32_t total_sends; 464 uint32_t total_recvs; 465 int freed_from_where; 466 uint16_t rport; /* remote port in network format */ 467 uint16_t resv; 468 struct mtx tcb_mtx; 469 struct mtx tcb_send_mtx; 470}; 471 472#include <netinet/sctp_lock_bsd.h> 473 474#if defined(_KERNEL) || defined(__Userspace__) 475 476/* Attention Julian, this is the extern that 477 * goes with the base info. sctp_pcb.c has 478 * the real definition. 479 */ 480VNET_DECLARE(struct sctp_base_info, system_base_info); 481 482#ifdef INET6 483int SCTP6_ARE_ADDR_EQUAL(struct sockaddr_in6 *a, struct sockaddr_in6 *b); 484#endif 485 486void sctp_fill_pcbinfo(struct sctp_pcbinfo *); 487 488struct sctp_ifn *sctp_find_ifn(void *ifn, uint32_t ifn_index); 489 490struct sctp_vrf *sctp_allocate_vrf(int vrfid); 491struct sctp_vrf *sctp_find_vrf(uint32_t vrfid); 492void sctp_free_vrf(struct sctp_vrf *vrf); 493 494/*- 495 * Change address state, can be used if 496 * O/S supports telling transports about 497 * changes to IFA/IFN's (link layer triggers). 498 * If a ifn goes down, we will do src-addr-selection 499 * and NOT use that, as a source address. This does 500 * not stop the routing system from routing out 501 * that interface, but we won't put it as a source. 502 */ 503void sctp_mark_ifa_addr_down(uint32_t vrf_id, struct sockaddr *addr, const char *if_name, uint32_t ifn_index); 504void sctp_mark_ifa_addr_up(uint32_t vrf_id, struct sockaddr *addr, const char *if_name, uint32_t ifn_index); 505 506struct sctp_ifa * 507sctp_add_addr_to_vrf(uint32_t vrfid, 508 void *ifn, uint32_t ifn_index, uint32_t ifn_type, 509 const char *if_name, 510 void *ifa, struct sockaddr *addr, uint32_t ifa_flags, 511 int dynamic_add); 512 513void sctp_update_ifn_mtu(uint32_t ifn_index, uint32_t mtu); 514 515void sctp_free_ifn(struct sctp_ifn *sctp_ifnp); 516void sctp_free_ifa(struct sctp_ifa *sctp_ifap); 517 518void 519sctp_del_addr_from_vrf(uint32_t vrfid, struct sockaddr *addr, 520 uint32_t ifn_index, const char *if_name); 521 522struct sctp_nets *sctp_findnet(struct sctp_tcb *, struct sockaddr *); 523 524struct sctp_inpcb *sctp_pcb_findep(struct sockaddr *, int, int, uint32_t); 525 526int 527sctp_inpcb_bind(struct socket *, struct sockaddr *, 528 struct sctp_ifa *, struct thread *); 529 530struct sctp_tcb * 531sctp_findassociation_addr(struct mbuf *, int, 532 struct sockaddr *, struct sockaddr *, 533 struct sctphdr *, struct sctp_chunkhdr *, struct sctp_inpcb **, 534 struct sctp_nets **, uint32_t vrf_id); 535 536struct sctp_tcb * 537sctp_findassociation_addr_sa(struct sockaddr *, 538 struct sockaddr *, struct sctp_inpcb **, struct sctp_nets **, int, uint32_t); 539 540void 541sctp_move_pcb_and_assoc(struct sctp_inpcb *, struct sctp_inpcb *, 542 struct sctp_tcb *); 543 544/*- 545 * For this call ep_addr, the to is the destination endpoint address of the 546 * peer (relative to outbound). The from field is only used if the TCP model 547 * is enabled and helps distingush amongst the subset bound (non-boundall). 548 * The TCP model MAY change the actual ep field, this is why it is passed. 549 */ 550struct sctp_tcb * 551sctp_findassociation_ep_addr(struct sctp_inpcb **, 552 struct sockaddr *, struct sctp_nets **, struct sockaddr *, 553 struct sctp_tcb *); 554 555struct sctp_tcb *sctp_findasoc_ep_asocid_locked(struct sctp_inpcb *inp, sctp_assoc_t asoc_id, int want_lock); 556 557struct sctp_tcb * 558sctp_findassociation_ep_asocid(struct sctp_inpcb *, 559 sctp_assoc_t, int); 560 561struct sctp_tcb * 562sctp_findassociation_ep_asconf(struct mbuf *, int, struct sockaddr *, 563 struct sctphdr *, struct sctp_inpcb **, struct sctp_nets **, uint32_t vrf_id); 564 565int sctp_inpcb_alloc(struct socket *so, uint32_t vrf_id); 566 567int sctp_is_address_on_local_host(struct sockaddr *addr, uint32_t vrf_id); 568 569void sctp_inpcb_free(struct sctp_inpcb *, int, int); 570 571#define SCTP_DONT_INITIALIZE_AUTH_PARAMS 0 572#define SCTP_INITIALIZE_AUTH_PARAMS 1 573 574struct sctp_tcb * 575sctp_aloc_assoc(struct sctp_inpcb *, struct sockaddr *, 576 int *, uint32_t, uint32_t, uint16_t, uint16_t, struct thread *, 577 int); 578 579int sctp_free_assoc(struct sctp_inpcb *, struct sctp_tcb *, int, int); 580 581void sctp_delete_from_timewait(uint32_t, uint16_t, uint16_t); 582 583int sctp_is_in_timewait(uint32_t tag, uint16_t lport, uint16_t rport); 584 585void 586 sctp_add_vtag_to_timewait(uint32_t tag, uint32_t time, uint16_t lport, uint16_t rport); 587 588void sctp_add_local_addr_ep(struct sctp_inpcb *, struct sctp_ifa *, uint32_t); 589 590void sctp_del_local_addr_ep(struct sctp_inpcb *, struct sctp_ifa *); 591 592int sctp_add_remote_addr(struct sctp_tcb *, struct sockaddr *, struct sctp_nets **, uint16_t, int, int); 593 594void sctp_remove_net(struct sctp_tcb *, struct sctp_nets *); 595 596int sctp_del_remote_addr(struct sctp_tcb *, struct sockaddr *); 597 598void sctp_pcb_init(void); 599 600void sctp_pcb_finish(void); 601 602void sctp_add_local_addr_restricted(struct sctp_tcb *, struct sctp_ifa *); 603void sctp_del_local_addr_restricted(struct sctp_tcb *, struct sctp_ifa *); 604 605int 606sctp_load_addresses_from_init(struct sctp_tcb *, struct mbuf *, int, int, 607 struct sockaddr *, struct sockaddr *, struct sockaddr *, uint16_t); 608 609int 610sctp_set_primary_addr(struct sctp_tcb *, struct sockaddr *, 611 struct sctp_nets *); 612 613int sctp_is_vtag_good(uint32_t, uint16_t lport, uint16_t rport, struct timeval *); 614 615/* void sctp_drain(void); */ 616 617int sctp_destination_is_reachable(struct sctp_tcb *, struct sockaddr *); 618 619int sctp_swap_inpcb_for_listen(struct sctp_inpcb *inp); 620 621void sctp_clean_up_stream(struct sctp_tcb *stcb, struct sctp_readhead *rh); 622 623/*- 624 * Null in last arg inpcb indicate run on ALL ep's. Specific inp in last arg 625 * indicates run on ONLY assoc's of the specified endpoint. 626 */ 627int 628sctp_initiate_iterator(inp_func inpf, 629 asoc_func af, 630 inp_func inpe, 631 uint32_t, uint32_t, 632 uint32_t, void *, 633 uint32_t, 634 end_func ef, 635 struct sctp_inpcb *, 636 uint8_t co_off); 637#if defined(SCTP_MCORE_INPUT) && defined(SMP) 638void 639 sctp_queue_to_mcore(struct mbuf *m, int off, int cpu_to_use); 640 641#endif 642 643#endif /* _KERNEL */ 644#endif /* !__sctp_pcb_h__ */ 645