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