sctp_pcb.h revision 347154
1/*- 2 * Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved. 3 * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved. 4 * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions are met: 8 * 9 * a) Redistributions of source code must retain the above copyright notice, 10 * this list of conditions and the following disclaimer. 11 * 12 * b) Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in 14 * the documentation and/or other materials provided with the distribution. 15 * 16 * c) Neither the name of Cisco Systems, Inc. nor the names of its 17 * contributors may be used to endorse or promote products derived 18 * from this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 22 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 24 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 30 * THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33#include <sys/cdefs.h> 34__FBSDID("$FreeBSD: stable/11/sys/netinet/sctp_pcb.h 347154 2019-05-05 12:28:39Z tuexen $"); 35 36#ifndef _NETINET_SCTP_PCB_H_ 37#define _NETINET_SCTP_PCB_H_ 38 39#include <netinet/sctp_os.h> 40#include <netinet/sctp.h> 41#include <netinet/sctp_constants.h> 42#include <netinet/sctp_sysctl.h> 43 44LIST_HEAD(sctppcbhead, sctp_inpcb); 45LIST_HEAD(sctpasochead, sctp_tcb); 46LIST_HEAD(sctpladdr, sctp_laddr); 47LIST_HEAD(sctpvtaghead, sctp_tagblock); 48LIST_HEAD(sctp_vrflist, sctp_vrf); 49LIST_HEAD(sctp_ifnlist, sctp_ifn); 50LIST_HEAD(sctp_ifalist, sctp_ifa); 51TAILQ_HEAD(sctp_readhead, sctp_queued_to_read); 52TAILQ_HEAD(sctp_streamhead, sctp_stream_queue_pending); 53 54#include <netinet/sctp_structs.h> 55#include <netinet/sctp_auth.h> 56 57#define SCTP_PCBHASH_ALLADDR(port, mask) (port & mask) 58#define SCTP_PCBHASH_ASOC(tag, mask) (tag & mask) 59 60struct sctp_vrf { 61 LIST_ENTRY(sctp_vrf) next_vrf; 62 struct sctp_ifalist *vrf_addr_hash; 63 struct sctp_ifnlist ifnlist; 64 uint32_t vrf_id; 65 uint32_t tbl_id_v4; /* default v4 table id */ 66 uint32_t tbl_id_v6; /* default v6 table id */ 67 uint32_t total_ifa_count; 68 u_long vrf_addr_hashmark; 69 uint32_t refcount; 70}; 71 72struct sctp_ifn { 73 struct sctp_ifalist ifalist; 74 struct sctp_vrf *vrf; 75 LIST_ENTRY(sctp_ifn) next_ifn; 76 LIST_ENTRY(sctp_ifn) next_bucket; 77 void *ifn_p; /* never access without appropriate lock */ 78 uint32_t ifn_mtu; 79 uint32_t ifn_type; 80 uint32_t ifn_index; /* shorthand way to look at ifn for reference */ 81 uint32_t refcount; /* number of reference held should be >= 82 * ifa_count */ 83 uint32_t ifa_count; /* IFA's we hold (in our list - ifalist) */ 84 uint32_t num_v6; /* number of v6 addresses */ 85 uint32_t num_v4; /* number of v4 addresses */ 86 uint32_t registered_af; /* registered address family for i/f events */ 87 char ifn_name[SCTP_IFNAMSIZ]; 88}; 89 90/* SCTP local IFA flags */ 91#define SCTP_ADDR_VALID 0x00000001 /* its up and active */ 92#define SCTP_BEING_DELETED 0x00000002 /* being deleted, when 93 * refcount = 0. Note that it 94 * is pulled from the ifn list 95 * and ifa_p is nulled right 96 * away but it cannot be freed 97 * until the last *net 98 * pointing to it is deleted. */ 99#define SCTP_ADDR_DEFER_USE 0x00000004 /* Hold off using this one */ 100#define SCTP_ADDR_IFA_UNUSEABLE 0x00000008 101 102struct sctp_ifa { 103 LIST_ENTRY(sctp_ifa) next_ifa; 104 LIST_ENTRY(sctp_ifa) next_bucket; 105 struct sctp_ifn *ifn_p; /* back pointer to parent ifn */ 106 void *ifa; /* pointer to ifa, needed for flag update for 107 * that we MUST lock appropriate locks. This 108 * is for V6. */ 109 union sctp_sockstore address; 110 uint32_t refcount; /* number of folks referring to this */ 111 uint32_t flags; 112 uint32_t localifa_flags; 113 uint32_t vrf_id; /* vrf_id of this addr (for deleting) */ 114 uint8_t src_is_loop; 115 uint8_t src_is_priv; 116 uint8_t src_is_glob; 117 uint8_t resv; 118}; 119 120struct sctp_laddr { 121 LIST_ENTRY(sctp_laddr) sctp_nxt_addr; /* next in list */ 122 struct sctp_ifa *ifa; 123 uint32_t action; /* Used during asconf and adding if no-zero 124 * src-addr selection will not consider this 125 * address. */ 126 struct timeval start_time; /* time when this address was created */ 127}; 128 129struct sctp_block_entry { 130 int error; 131}; 132 133struct sctp_timewait { 134 uint32_t tv_sec_at_expire; /* the seconds from boot to expire */ 135 uint32_t v_tag; /* the vtag that can not be reused */ 136 uint16_t lport; /* the local port used in vtag */ 137 uint16_t rport; /* the remote port used in vtag */ 138}; 139 140struct sctp_tagblock { 141 LIST_ENTRY(sctp_tagblock) sctp_nxt_tagblock; 142 struct sctp_timewait vtag_block[SCTP_NUMBER_IN_VTAG_BLOCK]; 143}; 144 145 146struct sctp_epinfo { 147#ifdef INET 148 struct socket *udp4_tun_socket; 149#endif 150#ifdef INET6 151 struct socket *udp6_tun_socket; 152#endif 153 struct sctpasochead *sctp_asochash; 154 u_long hashasocmark; 155 156 struct sctppcbhead *sctp_ephash; 157 u_long hashmark; 158 159 /*- 160 * The TCP model represents a substantial overhead in that we get an 161 * additional hash table to keep explicit connections in. The 162 * listening TCP endpoint will exist in the usual ephash above and 163 * accept only INIT's. It will be incapable of sending off an INIT. 164 * When a dg arrives we must look in the normal ephash. If we find a 165 * TCP endpoint that will tell us to go to the specific endpoint 166 * hash and re-hash to find the right assoc/socket. If we find a UDP 167 * model socket we then must complete the lookup. If this fails, 168 * i.e. no association can be found then we must continue to see if 169 * a sctp_peeloff()'d socket is in the tcpephash (a spun off socket 170 * acts like a TCP model connected socket). 171 */ 172 struct sctppcbhead *sctp_tcpephash; 173 u_long hashtcpmark; 174 uint32_t hashtblsize; 175 176 struct sctp_vrflist *sctp_vrfhash; 177 u_long hashvrfmark; 178 179 struct sctp_ifnlist *vrf_ifn_hash; 180 u_long vrf_ifn_hashmark; 181 182 struct sctppcbhead listhead; 183 struct sctpladdr addr_wq; 184 185 /* ep zone info */ 186 sctp_zone_t ipi_zone_ep; 187 sctp_zone_t ipi_zone_asoc; 188 sctp_zone_t ipi_zone_laddr; 189 sctp_zone_t ipi_zone_net; 190 sctp_zone_t ipi_zone_chunk; 191 sctp_zone_t ipi_zone_readq; 192 sctp_zone_t ipi_zone_strmoq; 193 sctp_zone_t ipi_zone_asconf; 194 sctp_zone_t ipi_zone_asconf_ack; 195 196 struct rwlock ipi_ep_mtx; 197 struct mtx ipi_iterator_wq_mtx; 198 struct rwlock ipi_addr_mtx; 199 struct mtx ipi_pktlog_mtx; 200 struct mtx wq_addr_mtx; 201 uint32_t ipi_count_ep; 202 203 /* assoc/tcb zone info */ 204 uint32_t ipi_count_asoc; 205 206 /* local addrlist zone info */ 207 uint32_t ipi_count_laddr; 208 209 /* remote addrlist zone info */ 210 uint32_t ipi_count_raddr; 211 212 /* chunk structure list for output */ 213 uint32_t ipi_count_chunk; 214 215 /* socket queue zone info */ 216 uint32_t ipi_count_readq; 217 218 /* socket queue zone info */ 219 uint32_t ipi_count_strmoq; 220 221 /* Number of vrfs */ 222 uint32_t ipi_count_vrfs; 223 224 /* Number of ifns */ 225 uint32_t ipi_count_ifns; 226 227 /* Number of ifas */ 228 uint32_t ipi_count_ifas; 229 230 /* system wide number of free chunks hanging around */ 231 uint32_t ipi_free_chunks; 232 uint32_t ipi_free_strmoq; 233 234 struct sctpvtaghead vtag_timewait[SCTP_STACK_VTAG_HASH_SIZE]; 235 236 /* address work queue handling */ 237 struct sctp_timer addr_wq_timer; 238 239}; 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(__FreeBSD__) && 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}; 261 262/*- 263 * Here we have all the relevant information for each SCTP entity created. We 264 * will need to modify this as approprate. We also need to figure out how to 265 * access /dev/random. 266 */ 267struct sctp_pcb { 268 unsigned int time_of_secret_change; /* number of seconds from 269 * timeval.tv_sec */ 270 uint32_t secret_key[SCTP_HOW_MANY_SECRETS][SCTP_NUMBER_OF_SECRETS]; 271 unsigned int size_of_a_cookie; 272 273 unsigned int sctp_timeoutticks[SCTP_NUM_TMRS]; 274 unsigned int sctp_minrto; 275 unsigned int sctp_maxrto; 276 unsigned int initial_rto; 277 int initial_init_rto_max; 278 279 unsigned int sctp_sack_freq; 280 uint32_t sctp_sws_sender; 281 uint32_t sctp_sws_receiver; 282 283 uint32_t sctp_default_cc_module; 284 uint32_t sctp_default_ss_module; 285 /* authentication related fields */ 286 struct sctp_keyhead shared_keys; 287 sctp_auth_chklist_t *local_auth_chunks; 288 sctp_hmaclist_t *local_hmacs; 289 uint16_t default_keyid; 290 uint32_t default_mtu; 291 292 /* various thresholds */ 293 /* Max times I will init at a guy */ 294 uint16_t max_init_times; 295 296 /* Max times I will send before we consider someone dead */ 297 uint16_t max_send_times; 298 299 uint16_t def_net_failure; 300 301 uint16_t def_net_pf_threshold; 302 303 /* number of streams to pre-open on a association */ 304 uint16_t pre_open_stream_count; 305 uint16_t max_open_streams_intome; 306 307 /* random number generator */ 308 uint32_t random_counter; 309 uint8_t random_numbers[SCTP_SIGNATURE_ALOC_SIZE]; 310 uint8_t random_store[SCTP_SIGNATURE_ALOC_SIZE]; 311 312 /* 313 * This timer is kept running per endpoint. When it fires it will 314 * change the secret key. The default is once a hour 315 */ 316 struct sctp_timer signature_change; 317 318 uint32_t def_cookie_life; 319 /* defaults to 0 */ 320 int auto_close_time; 321 uint32_t initial_sequence_debug; 322 uint32_t adaptation_layer_indicator; 323 uint8_t adaptation_layer_indicator_provided; 324 uint32_t store_at; 325 uint32_t max_burst; 326 uint32_t fr_max_burst; 327#ifdef INET6 328 uint32_t default_flowlabel; 329#endif 330 uint8_t default_dscp; 331 char current_secret_number; 332 char last_secret_number; 333 uint16_t port; /* remote UDP encapsulation port */ 334}; 335 336#ifndef SCTP_ALIGNMENT 337#define SCTP_ALIGNMENT 32 338#endif 339 340#ifndef SCTP_ALIGNM1 341#define SCTP_ALIGNM1 (SCTP_ALIGNMENT-1) 342#endif 343 344#define sctp_lport ip_inp.inp.inp_lport 345 346struct sctp_pcbtsn_rlog { 347 uint32_t vtag; 348 uint16_t strm; 349 uint16_t seq; 350 uint16_t sz; 351 uint16_t flgs; 352}; 353#define SCTP_READ_LOG_SIZE 135 /* we choose the number to make a pcb a page */ 354 355 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 in6pcb) + SCTP_ALIGNM1) & 364 ~SCTP_ALIGNM1]; 365 } ip_inp; 366 367 368 /* Socket buffer lock protects read_queue and of course sb_cc */ 369 struct sctp_readhead read_queue; 370 371 LIST_ENTRY(sctp_inpcb) sctp_list; /* lists all endpoints */ 372 /* hash of all endpoints for model */ 373 LIST_ENTRY(sctp_inpcb) sctp_hash; 374 /* count of local addresses bound, 0 if bound all */ 375 int laddr_count; 376 377 /* list of addrs in use by the EP, NULL if bound-all */ 378 struct sctpladdr sctp_addr_list; 379 /* 380 * used for source address selection rotation when we are subset 381 * bound 382 */ 383 struct sctp_laddr *next_addr_touse; 384 385 /* back pointer to our socket */ 386 struct socket *sctp_socket; 387 uint64_t sctp_features; /* Feature flags */ 388 uint32_t sctp_flags; /* INP state flag set */ 389 uint32_t sctp_mobility_features; /* Mobility Feature flags */ 390 struct sctp_pcb sctp_ep; /* SCTP ep data */ 391 /* head of the hash of all associations */ 392 struct sctpasochead *sctp_tcbhash; 393 u_long sctp_hashmark; 394 /* head of the list of all associations */ 395 struct sctpasochead sctp_asoc_list; 396#ifdef SCTP_TRACK_FREED_ASOCS 397 struct sctpasochead sctp_asoc_free_list; 398#endif 399 struct sctp_iterator *inp_starting_point_for_iterator; 400 uint32_t sctp_frag_point; 401 uint32_t partial_delivery_point; 402 uint32_t sctp_context; 403 uint32_t max_cwnd; 404 uint8_t local_strreset_support; 405 uint32_t sctp_cmt_on_off; 406 uint8_t ecn_supported; 407 uint8_t prsctp_supported; 408 uint8_t auth_supported; 409 uint8_t idata_supported; 410 uint8_t asconf_supported; 411 uint8_t reconfig_supported; 412 uint8_t nrsack_supported; 413 uint8_t pktdrop_supported; 414 struct sctp_nonpad_sndrcvinfo def_send; 415 /*- 416 * These three are here for the sosend_dgram 417 * (pkt, pkt_last and control). 418 * routine. However, I don't think anyone in 419 * the current FreeBSD kernel calls this. So 420 * they are candidates with sctp_sendm for 421 * de-supporting. 422 */ 423 struct mbuf *pkt, *pkt_last; 424 struct mbuf *control; 425 struct mtx inp_mtx; 426 struct mtx inp_create_mtx; 427 struct mtx inp_rdata_mtx; 428 int32_t refcount; 429 uint32_t def_vrf_id; 430 uint16_t fibnum; 431 uint32_t total_sends; 432 uint32_t total_recvs; 433 uint32_t last_abort_code; 434 uint32_t total_nospaces; 435 struct sctpasochead *sctp_asocidhash; 436 u_long hashasocidmark; 437 uint32_t sctp_associd_counter; 438 439#ifdef SCTP_ASOCLOG_OF_TSNS 440 struct sctp_pcbtsn_rlog readlog[SCTP_READ_LOG_SIZE]; 441 uint32_t readlog_index; 442#endif 443}; 444 445struct sctp_tcb { 446 struct socket *sctp_socket; /* back pointer to socket */ 447 struct sctp_inpcb *sctp_ep; /* back pointer to ep */ 448 LIST_ENTRY(sctp_tcb) sctp_tcbhash; /* next link in hash 449 * table */ 450 LIST_ENTRY(sctp_tcb) sctp_tcblist; /* list of all of the 451 * TCB's */ 452 LIST_ENTRY(sctp_tcb) sctp_tcbasocidhash; /* next link in asocid 453 * hash table */ 454 LIST_ENTRY(sctp_tcb) sctp_asocs; /* vtag hash list */ 455 struct sctp_block_entry *block_entry; /* pointer locked by socket 456 * send buffer */ 457 struct sctp_association asoc; 458 /*- 459 * freed_by_sorcv_sincelast is protected by the sockbuf_lock NOT the 460 * tcb_lock. Its special in this way to help avoid extra mutex calls 461 * in the reading of data. 462 */ 463 uint32_t freed_by_sorcv_sincelast; 464 uint32_t total_sends; 465 uint32_t total_recvs; 466 int freed_from_where; 467 uint16_t rport; /* remote port in network format */ 468 uint16_t resv; 469 struct mtx tcb_mtx; 470 struct mtx tcb_send_mtx; 471}; 472 473 474 475#include <netinet/sctp_lock_bsd.h> 476 477 478/* TODO where to put non-_KERNEL things for __Userspace__? */ 479#if defined(_KERNEL) || defined(__Userspace__) 480 481/* Attention Julian, this is the extern that 482 * goes with the base info. sctp_pcb.c has 483 * the real definition. 484 */ 485VNET_DECLARE(struct sctp_base_info, system_base_info); 486 487#ifdef INET6 488int SCTP6_ARE_ADDR_EQUAL(struct sockaddr_in6 *a, struct sockaddr_in6 *b); 489#endif 490 491void sctp_fill_pcbinfo(struct sctp_pcbinfo *); 492 493struct sctp_ifn *sctp_find_ifn(void *ifn, uint32_t ifn_index); 494 495struct sctp_vrf *sctp_allocate_vrf(int vrfid); 496struct sctp_vrf *sctp_find_vrf(uint32_t vrfid); 497void sctp_free_vrf(struct sctp_vrf *vrf); 498 499/*- 500 * Change address state, can be used if 501 * O/S supports telling transports about 502 * changes to IFA/IFN's (link layer triggers). 503 * If a ifn goes down, we will do src-addr-selection 504 * and NOT use that, as a source address. This does 505 * not stop the routing system from routing out 506 * that interface, but we won't put it as a source. 507 */ 508void sctp_mark_ifa_addr_down(uint32_t vrf_id, struct sockaddr *addr, const char *if_name, uint32_t ifn_index); 509void sctp_mark_ifa_addr_up(uint32_t vrf_id, struct sockaddr *addr, const char *if_name, uint32_t ifn_index); 510 511struct sctp_ifa * 512sctp_add_addr_to_vrf(uint32_t vrfid, 513 void *ifn, uint32_t ifn_index, uint32_t ifn_type, 514 const char *if_name, 515 void *ifa, struct sockaddr *addr, uint32_t ifa_flags, 516 int dynamic_add); 517 518void sctp_update_ifn_mtu(uint32_t ifn_index, uint32_t mtu); 519 520void sctp_free_ifn(struct sctp_ifn *sctp_ifnp); 521void sctp_free_ifa(struct sctp_ifa *sctp_ifap); 522 523 524void 525sctp_del_addr_from_vrf(uint32_t vrfid, struct sockaddr *addr, 526 uint32_t ifn_index, const char *if_name); 527 528 529 530struct sctp_nets *sctp_findnet(struct sctp_tcb *, struct sockaddr *); 531 532struct sctp_inpcb *sctp_pcb_findep(struct sockaddr *, int, int, uint32_t); 533 534int 535sctp_inpcb_bind(struct socket *, struct sockaddr *, 536 struct sctp_ifa *, struct thread *); 537 538struct sctp_tcb * 539sctp_findassociation_addr(struct mbuf *, int, 540 struct sockaddr *, struct sockaddr *, 541 struct sctphdr *, struct sctp_chunkhdr *, struct sctp_inpcb **, 542 struct sctp_nets **, uint32_t vrf_id); 543 544struct sctp_tcb * 545sctp_findassociation_addr_sa(struct sockaddr *, 546 struct sockaddr *, struct sctp_inpcb **, struct sctp_nets **, int, uint32_t); 547 548void 549sctp_move_pcb_and_assoc(struct sctp_inpcb *, struct sctp_inpcb *, 550 struct sctp_tcb *); 551 552/*- 553 * For this call ep_addr, the to is the destination endpoint address of the 554 * peer (relative to outbound). The from field is only used if the TCP model 555 * is enabled and helps distingush amongst the subset bound (non-boundall). 556 * The TCP model MAY change the actual ep field, this is why it is passed. 557 */ 558struct sctp_tcb * 559sctp_findassociation_ep_addr(struct sctp_inpcb **, 560 struct sockaddr *, struct sctp_nets **, struct sockaddr *, 561 struct sctp_tcb *); 562 563struct sctp_tcb *sctp_findasoc_ep_asocid_locked(struct sctp_inpcb *inp, sctp_assoc_t asoc_id, int want_lock); 564 565struct sctp_tcb * 566sctp_findassociation_ep_asocid(struct sctp_inpcb *, 567 sctp_assoc_t, int); 568 569struct sctp_tcb * 570sctp_findassociation_ep_asconf(struct mbuf *, int, struct sockaddr *, 571 struct sctphdr *, struct sctp_inpcb **, struct sctp_nets **, uint32_t vrf_id); 572 573int sctp_inpcb_alloc(struct socket *so, uint32_t vrf_id); 574 575int sctp_is_address_on_local_host(struct sockaddr *addr, uint32_t vrf_id); 576 577void sctp_inpcb_free(struct sctp_inpcb *, int, int); 578 579struct sctp_tcb * 580sctp_aloc_assoc(struct sctp_inpcb *, struct sockaddr *, 581 int *, uint32_t, uint32_t, uint16_t, uint16_t, struct thread *); 582 583int sctp_free_assoc(struct sctp_inpcb *, struct sctp_tcb *, int, int); 584 585 586void sctp_delete_from_timewait(uint32_t, uint16_t, uint16_t); 587 588int sctp_is_in_timewait(uint32_t tag, uint16_t lport, uint16_t rport); 589 590void 591 sctp_add_vtag_to_timewait(uint32_t tag, uint32_t time, uint16_t lport, uint16_t rport); 592 593void sctp_add_local_addr_ep(struct sctp_inpcb *, struct sctp_ifa *, uint32_t); 594 595void sctp_del_local_addr_ep(struct sctp_inpcb *, struct sctp_ifa *); 596 597int sctp_add_remote_addr(struct sctp_tcb *, struct sockaddr *, struct sctp_nets **, uint16_t, int, int); 598 599void sctp_remove_net(struct sctp_tcb *, struct sctp_nets *); 600 601int sctp_del_remote_addr(struct sctp_tcb *, struct sockaddr *); 602 603void sctp_pcb_init(void); 604 605void sctp_pcb_finish(void); 606 607void sctp_add_local_addr_restricted(struct sctp_tcb *, struct sctp_ifa *); 608void sctp_del_local_addr_restricted(struct sctp_tcb *, struct sctp_ifa *); 609 610int 611sctp_load_addresses_from_init(struct sctp_tcb *, struct mbuf *, int, int, 612 struct sockaddr *, struct sockaddr *, struct sockaddr *, uint16_t); 613 614int 615sctp_set_primary_addr(struct sctp_tcb *, struct sockaddr *, 616 struct sctp_nets *); 617 618int sctp_is_vtag_good(uint32_t, uint16_t lport, uint16_t rport, struct timeval *); 619 620/* void sctp_drain(void); */ 621 622int sctp_destination_is_reachable(struct sctp_tcb *, struct sockaddr *); 623 624int sctp_swap_inpcb_for_listen(struct sctp_inpcb *inp); 625 626void sctp_clean_up_stream(struct sctp_tcb *stcb, struct sctp_readhead *rh); 627 628/*- 629 * Null in last arg inpcb indicate run on ALL ep's. Specific inp in last arg 630 * indicates run on ONLY assoc's of the specified endpoint. 631 */ 632int 633sctp_initiate_iterator(inp_func inpf, 634 asoc_func af, 635 inp_func inpe, 636 uint32_t, uint32_t, 637 uint32_t, void *, 638 uint32_t, 639 end_func ef, 640 struct sctp_inpcb *, 641 uint8_t co_off); 642#if defined(__FreeBSD__) && defined(SCTP_MCORE_INPUT) && defined(SMP) 643void 644 sctp_queue_to_mcore(struct mbuf *m, int off, int cpu_to_use); 645 646#endif 647 648#endif /* _KERNEL */ 649#endif /* !__sctp_pcb_h__ */ 650