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 46 LIST_HEAD(sctppcbhead, sctp_inpcb); 47 LIST_HEAD(sctpasochead, sctp_tcb); 48 LIST_HEAD(sctpladdr, sctp_laddr); 49 LIST_HEAD(sctpvtaghead, sctp_tagblock); 50 LIST_HEAD(sctp_vrflist, sctp_vrf); 51 LIST_HEAD(sctp_ifnlist, sctp_ifn); 52 LIST_HEAD(sctp_ifalist, sctp_ifa); 53 TAILQ_HEAD(sctp_readhead, sctp_queued_to_read); 54 TAILQ_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 62 struct 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 74 struct 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 103 104 struct 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 }; 121 122 struct 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 }; 130 131 struct sctp_block_entry { 132 int error; 133 }; 134 135 struct 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 }; 141 142 struct sctp_tagblock { 143 LIST_ENTRY(sctp_tagblock) sctp_nxt_tagblock; 144 struct sctp_timewait vtag_block[SCTP_NUMBER_IN_VTAG_BLOCK]; 145 }; 146 147 148 struct sctp_epinfo { 149 #ifdef INET 150 struct socket *udp4_tun_socket; 151 #endif 152 #ifdef INET6 153 struct socket *udp6_tun_socket; 154 #endif 155 struct sctpasochead *sctp_asochash; 156 u_long hashasocmark; 157 158 struct sctppcbhead *sctp_ephash; 159 u_long hashmark; 160 161 /*- 162 * The TCP model represents a substantial overhead in that we get an 163 * additional hash table to keep explicit connections in. The 164 * listening TCP endpoint will exist in the usual ephash above and 165 * accept only INIT's. It will be incapable of sending off an INIT. 166 * When a dg arrives we must look in the normal ephash. If we find a 167 * TCP endpoint that will tell us to go to the specific endpoint 168 * hash and re-hash to find the right assoc/socket. If we find a UDP 169 * model socket we then must complete the lookup. If this fails, 170 * i.e. no association can be found then we must continue to see if 171 * a sctp_peeloff()'d socket is in the tcpephash (a spun off socket 172 * acts like a TCP model connected socket). 173 */ 174 struct sctppcbhead *sctp_tcpephash; 175 u_long hashtcpmark; 176 uint32_t hashtblsize; 177 178 struct sctp_vrflist *sctp_vrfhash; 179 u_long hashvrfmark; 180 181 struct sctp_ifnlist *vrf_ifn_hash; 182 u_long vrf_ifn_hashmark; 183 184 struct sctppcbhead listhead; 185 struct sctpladdr addr_wq; 186 187 /* ep zone info */ 188 sctp_zone_t ipi_zone_ep; 189 sctp_zone_t ipi_zone_asoc; 190 sctp_zone_t ipi_zone_laddr; 191 sctp_zone_t ipi_zone_net; 192 sctp_zone_t ipi_zone_chunk; 193 sctp_zone_t ipi_zone_readq; 194 sctp_zone_t ipi_zone_strmoq; 195 sctp_zone_t ipi_zone_asconf; 196 sctp_zone_t ipi_zone_asconf_ack; 197 198 struct rwlock ipi_ep_mtx; 199 struct mtx ipi_iterator_wq_mtx; 200 struct rwlock ipi_addr_mtx; 201 struct mtx ipi_pktlog_mtx; 202 struct mtx wq_addr_mtx; 203 uint32_t ipi_count_ep; 204 205 /* assoc/tcb zone info */ 206 uint32_t ipi_count_asoc; 207 208 /* local addrlist zone info */ 209 uint32_t ipi_count_laddr; 210 211 /* remote addrlist zone info */ 212 uint32_t ipi_count_raddr; 213 214 /* chunk structure list for output */ 215 uint32_t ipi_count_chunk; 216 217 /* socket queue zone info */ 218 uint32_t ipi_count_readq; 219 220 /* socket queue zone info */ 221 uint32_t ipi_count_strmoq; 222 223 /* Number of vrfs */ 224 uint32_t ipi_count_vrfs; 225 226 /* Number of ifns */ 227 uint32_t ipi_count_ifns; 228 229 /* Number of ifas */ 230 uint32_t ipi_count_ifas; 231 232 /* system wide number of free chunks hanging around */ 233 uint32_t ipi_free_chunks; 234 uint32_t ipi_free_strmoq; 235 236 struct sctpvtaghead vtag_timewait[SCTP_STACK_VTAG_HASH_SIZE]; 237 238 /* address work queue handling */ 239 struct sctp_timer addr_wq_timer; 240 241 }; 242 243 244 struct sctp_base_info { 245 /* 246 * All static structures that anchor the system must be here. 247 */ 248 struct sctp_epinfo sctppcbinfo; 249 #if defined(__FreeBSD__) && defined(SMP) && defined(SCTP_USE_PERCPU_STAT) 250 struct sctpstat *sctpstat; 251 #else 252 struct sctpstat sctpstat; 253 #endif 254 struct sctp_sysctl sctpsysctl; 255 uint8_t first_time; 256 char sctp_pcb_initialized; 257 #if defined(SCTP_PACKET_LOGGING) 258 int packet_log_writers; 259 int packet_log_end; 260 uint8_t packet_log_buffer[SCTP_PACKET_LOG_SIZE]; 261 #endif 262 eventhandler_tag eh_tag; 263 }; 264 265 /*- 266 * Here we have all the relevant information for each SCTP entity created. We 267 * will need to modify this as approprate. We also need to figure out how to 268 * access /dev/random. 269 */ 270 struct sctp_pcb { 271 unsigned int time_of_secret_change; /* number of seconds from 272 * timeval.tv_sec */ 273 uint32_t secret_key[SCTP_HOW_MANY_SECRETS][SCTP_NUMBER_OF_SECRETS]; 274 unsigned int size_of_a_cookie; 275 276 unsigned int sctp_timeoutticks[SCTP_NUM_TMRS]; 277 unsigned int sctp_minrto; 278 unsigned int sctp_maxrto; 279 unsigned int initial_rto; 280 int initial_init_rto_max; 281 282 unsigned int sctp_sack_freq; 283 uint32_t sctp_sws_sender; 284 uint32_t sctp_sws_receiver; 285 286 uint32_t sctp_default_cc_module; 287 uint32_t sctp_default_ss_module; 288 /* authentication related fields */ 289 struct sctp_keyhead shared_keys; 290 sctp_auth_chklist_t *local_auth_chunks; 291 sctp_hmaclist_t *local_hmacs; 292 uint16_t default_keyid; 293 uint32_t default_mtu; 294 295 /* various thresholds */ 296 /* Max times I will init at a guy */ 297 uint16_t max_init_times; 298 299 /* Max times I will send before we consider someone dead */ 300 uint16_t max_send_times; 301 302 uint16_t def_net_failure; 303 304 uint16_t def_net_pf_threshold; 305 306 /* number of streams to pre-open on a association */ 307 uint16_t pre_open_stream_count; 308 uint16_t max_open_streams_intome; 309 310 /* random number generator */ 311 uint32_t random_counter; 312 uint8_t random_numbers[SCTP_SIGNATURE_ALOC_SIZE]; 313 uint8_t random_store[SCTP_SIGNATURE_ALOC_SIZE]; 314 315 /* 316 * This timer is kept running per endpoint. When it fires it will 317 * change the secret key. The default is once a hour 318 */ 319 struct sctp_timer signature_change; 320 321 uint32_t def_cookie_life; 322 /* defaults to 0 */ 323 int auto_close_time; 324 uint32_t initial_sequence_debug; 325 uint32_t adaptation_layer_indicator; 326 uint8_t adaptation_layer_indicator_provided; 327 uint32_t store_at; 328 uint32_t max_burst; 329 uint32_t fr_max_burst; 330 #ifdef INET6 331 uint32_t default_flowlabel; 332 #endif 333 uint8_t default_dscp; 334 char current_secret_number; 335 char last_secret_number; 336 uint16_t port; /* remote UDP encapsulation port */ 337 }; 338 339 #ifndef SCTP_ALIGNMENT 340 #define SCTP_ALIGNMENT 32 341 #endif 342 343 #ifndef SCTP_ALIGNM1 344 #define SCTP_ALIGNM1 (SCTP_ALIGNMENT-1) 345 #endif 346 347 #define sctp_lport ip_inp.inp.inp_lport 348 349 struct sctp_pcbtsn_rlog { 350 uint32_t vtag; 351 uint16_t strm; 352 uint16_t seq; 353 uint16_t sz; 354 uint16_t flgs; 355 }; 356 #define SCTP_READ_LOG_SIZE 135 /* we choose the number to make a pcb a page */ 357 358 359 struct sctp_inpcb { 360 /*- 361 * put an inpcb in front of it all, kind of a waste but we need to 362 * for compatibility with all the other stuff. 363 */ 364 union { 365 struct inpcb inp; 366 char align[(sizeof(struct inpcb) + SCTP_ALIGNM1) & 367 ~SCTP_ALIGNM1]; 368 } ip_inp; 369 370 371 /* Socket buffer lock protects read_queue and of course sb_cc */ 372 struct sctp_readhead read_queue; 373 374 LIST_ENTRY(sctp_inpcb) sctp_list; /* lists all endpoints */ 375 /* hash of all endpoints for model */ 376 LIST_ENTRY(sctp_inpcb) sctp_hash; 377 /* count of local addresses bound, 0 if bound all */ 378 int laddr_count; 379 380 /* list of addrs in use by the EP, NULL if bound-all */ 381 struct sctpladdr sctp_addr_list; 382 /* 383 * used for source address selection rotation when we are subset 384 * bound 385 */ 386 struct sctp_laddr *next_addr_touse; 387 388 /* back pointer to our socket */ 389 struct socket *sctp_socket; 390 uint64_t sctp_features; /* Feature flags */ 391 uint32_t sctp_flags; /* INP state flag set */ 392 uint32_t sctp_mobility_features; /* Mobility Feature flags */ 393 struct sctp_pcb sctp_ep; /* SCTP ep data */ 394 /* head of the hash of all associations */ 395 struct sctpasochead *sctp_tcbhash; 396 u_long sctp_hashmark; 397 /* head of the list of all associations */ 398 struct sctpasochead sctp_asoc_list; 399 #ifdef SCTP_TRACK_FREED_ASOCS 400 struct sctpasochead sctp_asoc_free_list; 401 #endif 402 struct sctp_iterator *inp_starting_point_for_iterator; 403 uint32_t sctp_frag_point; 404 uint32_t partial_delivery_point; 405 uint32_t sctp_context; 406 uint32_t max_cwnd; 407 uint8_t local_strreset_support; 408 uint32_t sctp_cmt_on_off; 409 uint8_t ecn_supported; 410 uint8_t prsctp_supported; 411 uint8_t auth_supported; 412 uint8_t idata_supported; 413 uint8_t asconf_supported; 414 uint8_t reconfig_supported; 415 uint8_t nrsack_supported; 416 uint8_t pktdrop_supported; 417 struct sctp_nonpad_sndrcvinfo def_send; 418 /*- 419 * These three are here for the sosend_dgram 420 * (pkt, pkt_last and control). 421 * routine. However, I don't think anyone in 422 * the current FreeBSD kernel calls this. So 423 * they are candidates with sctp_sendm for 424 * de-supporting. 425 */ 426 struct mbuf *pkt, *pkt_last; 427 struct mbuf *control; 428 struct mtx inp_mtx; 429 struct mtx inp_create_mtx; 430 struct mtx inp_rdata_mtx; 431 int32_t refcount; 432 uint32_t def_vrf_id; 433 uint16_t fibnum; 434 uint32_t total_sends; 435 uint32_t total_recvs; 436 uint32_t last_abort_code; 437 uint32_t total_nospaces; 438 struct sctpasochead *sctp_asocidhash; 439 u_long hashasocidmark; 440 uint32_t sctp_associd_counter; 441 442 #ifdef SCTP_ASOCLOG_OF_TSNS 443 struct sctp_pcbtsn_rlog readlog[SCTP_READ_LOG_SIZE]; 444 uint32_t readlog_index; 445 #endif 446 }; 447 448 struct sctp_tcb { 449 struct socket *sctp_socket; /* back pointer to socket */ 450 struct sctp_inpcb *sctp_ep; /* back pointer to ep */ 451 LIST_ENTRY(sctp_tcb) sctp_tcbhash; /* next link in hash 452 * table */ 453 LIST_ENTRY(sctp_tcb) sctp_tcblist; /* list of all of the 454 * TCB's */ 455 LIST_ENTRY(sctp_tcb) sctp_tcbasocidhash; /* next link in asocid 456 * hash table */ 457 LIST_ENTRY(sctp_tcb) sctp_asocs; /* vtag hash list */ 458 struct sctp_block_entry *block_entry; /* pointer locked by socket 459 * send buffer */ 460 struct sctp_association asoc; 461 /*- 462 * freed_by_sorcv_sincelast is protected by the sockbuf_lock NOT the 463 * tcb_lock. Its special in this way to help avoid extra mutex calls 464 * in the reading of data. 465 */ 466 uint32_t freed_by_sorcv_sincelast; 467 uint32_t total_sends; 468 uint32_t total_recvs; 469 int freed_from_where; 470 uint16_t rport; /* remote port in network format */ 471 uint16_t resv; 472 struct mtx tcb_mtx; 473 struct mtx tcb_send_mtx; 474 }; 475 476 477 478 #include <netinet/sctp_lock_bsd.h> 479 480 481 /* TODO where to put non-_KERNEL things for __Userspace__? */ 482 #if defined(_KERNEL) || defined(__Userspace__) 483 484 /* Attention Julian, this is the extern that 485 * goes with the base info. sctp_pcb.c has 486 * the real definition. 487 */ 488 VNET_DECLARE(struct sctp_base_info, system_base_info); 489 490 #ifdef INET6 491 int SCTP6_ARE_ADDR_EQUAL(struct sockaddr_in6 *a, struct sockaddr_in6 *b); 492 #endif 493 494 void sctp_fill_pcbinfo(struct sctp_pcbinfo *); 495 496 struct sctp_ifn *sctp_find_ifn(void *ifn, uint32_t ifn_index); 497 498 struct sctp_vrf *sctp_allocate_vrf(int vrfid); 499 struct sctp_vrf *sctp_find_vrf(uint32_t vrfid); 500 void sctp_free_vrf(struct sctp_vrf *vrf); 501 502 /*- 503 * Change address state, can be used if 504 * O/S supports telling transports about 505 * changes to IFA/IFN's (link layer triggers). 506 * If a ifn goes down, we will do src-addr-selection 507 * and NOT use that, as a source address. This does 508 * not stop the routing system from routing out 509 * that interface, but we won't put it as a source. 510 */ 511 void sctp_mark_ifa_addr_down(uint32_t vrf_id, struct sockaddr *addr, const char *if_name, uint32_t ifn_index); 512 void sctp_mark_ifa_addr_up(uint32_t vrf_id, struct sockaddr *addr, const char *if_name, uint32_t ifn_index); 513 514 struct sctp_ifa * 515 sctp_add_addr_to_vrf(uint32_t vrfid, 516 void *ifn, uint32_t ifn_index, uint32_t ifn_type, 517 const char *if_name, 518 void *ifa, struct sockaddr *addr, uint32_t ifa_flags, 519 int dynamic_add); 520 521 void sctp_update_ifn_mtu(uint32_t ifn_index, uint32_t mtu); 522 523 void sctp_free_ifn(struct sctp_ifn *sctp_ifnp); 524 void sctp_free_ifa(struct sctp_ifa *sctp_ifap); 525 526 527 void 528 sctp_del_addr_from_vrf(uint32_t vrfid, struct sockaddr *addr, 529 uint32_t ifn_index, const char *if_name); 530 531 532 533 struct sctp_nets *sctp_findnet(struct sctp_tcb *, struct sockaddr *); 534 535 struct sctp_inpcb *sctp_pcb_findep(struct sockaddr *, int, int, uint32_t); 536 537 int 538 sctp_inpcb_bind(struct socket *, struct sockaddr *, 539 struct sctp_ifa *, struct thread *); 540 541 struct sctp_tcb * 542 sctp_findassociation_addr(struct mbuf *, int, 543 struct sockaddr *, struct sockaddr *, 544 struct sctphdr *, struct sctp_chunkhdr *, struct sctp_inpcb **, 545 struct sctp_nets **, uint32_t vrf_id); 546 547 struct sctp_tcb * 548 sctp_findassociation_addr_sa(struct sockaddr *, 549 struct sockaddr *, struct sctp_inpcb **, struct sctp_nets **, int, uint32_t); 550 551 void 552 sctp_move_pcb_and_assoc(struct sctp_inpcb *, struct sctp_inpcb *, 553 struct sctp_tcb *); 554 555 /*- 556 * For this call ep_addr, the to is the destination endpoint address of the 557 * peer (relative to outbound). The from field is only used if the TCP model 558 * is enabled and helps distingush amongst the subset bound (non-boundall). 559 * The TCP model MAY change the actual ep field, this is why it is passed. 560 */ 561 struct sctp_tcb * 562 sctp_findassociation_ep_addr(struct sctp_inpcb **, 563 struct sockaddr *, struct sctp_nets **, struct sockaddr *, 564 struct sctp_tcb *); 565 566 struct sctp_tcb *sctp_findasoc_ep_asocid_locked(struct sctp_inpcb *inp, sctp_assoc_t asoc_id, int want_lock); 567 568 struct sctp_tcb * 569 sctp_findassociation_ep_asocid(struct sctp_inpcb *, 570 sctp_assoc_t, int); 571 572 struct sctp_tcb * 573 sctp_findassociation_ep_asconf(struct mbuf *, int, struct sockaddr *, 574 struct sctphdr *, struct sctp_inpcb **, struct sctp_nets **, uint32_t vrf_id); 575 576 int sctp_inpcb_alloc(struct socket *so, uint32_t vrf_id); 577 578 int sctp_is_address_on_local_host(struct sockaddr *addr, uint32_t vrf_id); 579 580 void sctp_inpcb_free(struct sctp_inpcb *, int, int); 581 582 #define SCTP_DONT_INITIALIZE_AUTH_PARAMS 0 583 #define SCTP_INITIALIZE_AUTH_PARAMS 1 584 585 struct sctp_tcb * 586 sctp_aloc_assoc(struct sctp_inpcb *, struct sockaddr *, 587 int *, uint32_t, uint32_t, uint16_t, uint16_t, struct thread *, 588 int); 589 590 int sctp_free_assoc(struct sctp_inpcb *, struct sctp_tcb *, int, int); 591 592 593 void sctp_delete_from_timewait(uint32_t, uint16_t, uint16_t); 594 595 int sctp_is_in_timewait(uint32_t tag, uint16_t lport, uint16_t rport); 596 597 void 598 sctp_add_vtag_to_timewait(uint32_t tag, uint32_t time, uint16_t lport, uint16_t rport); 599 600 void sctp_add_local_addr_ep(struct sctp_inpcb *, struct sctp_ifa *, uint32_t); 601 602 void sctp_del_local_addr_ep(struct sctp_inpcb *, struct sctp_ifa *); 603 604 int sctp_add_remote_addr(struct sctp_tcb *, struct sockaddr *, struct sctp_nets **, uint16_t, int, int); 605 606 void sctp_remove_net(struct sctp_tcb *, struct sctp_nets *); 607 608 int sctp_del_remote_addr(struct sctp_tcb *, struct sockaddr *); 609 610 void sctp_pcb_init(void); 611 612 void sctp_pcb_finish(void); 613 614 void sctp_add_local_addr_restricted(struct sctp_tcb *, struct sctp_ifa *); 615 void sctp_del_local_addr_restricted(struct sctp_tcb *, struct sctp_ifa *); 616 617 int 618 sctp_load_addresses_from_init(struct sctp_tcb *, struct mbuf *, int, int, 619 struct sockaddr *, struct sockaddr *, struct sockaddr *, uint16_t); 620 621 int 622 sctp_set_primary_addr(struct sctp_tcb *, struct sockaddr *, 623 struct sctp_nets *); 624 625 int sctp_is_vtag_good(uint32_t, uint16_t lport, uint16_t rport, struct timeval *); 626 627 /* void sctp_drain(void); */ 628 629 int sctp_destination_is_reachable(struct sctp_tcb *, struct sockaddr *); 630 631 int sctp_swap_inpcb_for_listen(struct sctp_inpcb *inp); 632 633 void sctp_clean_up_stream(struct sctp_tcb *stcb, struct sctp_readhead *rh); 634 635 /*- 636 * Null in last arg inpcb indicate run on ALL ep's. Specific inp in last arg 637 * indicates run on ONLY assoc's of the specified endpoint. 638 */ 639 int 640 sctp_initiate_iterator(inp_func inpf, 641 asoc_func af, 642 inp_func inpe, 643 uint32_t, uint32_t, 644 uint32_t, void *, 645 uint32_t, 646 end_func ef, 647 struct sctp_inpcb *, 648 uint8_t co_off); 649 #if defined(__FreeBSD__) && defined(SCTP_MCORE_INPUT) && defined(SMP) 650 void 651 sctp_queue_to_mcore(struct mbuf *m, int off, int cpu_to_use); 652 653 #endif 654 655 #endif /* _KERNEL */ 656 #endif /* !__sctp_pcb_h__ */ 657