sctputil.h revision 166675
1198090Srdivacky/*- 2198090Srdivacky * Copyright (c) 2001-2007, Cisco Systems, Inc. All rights reserved. 3198090Srdivacky * 4198090Srdivacky * Redistribution and use in source and binary forms, with or without 5198090Srdivacky * modification, are permitted provided that the following conditions are met: 6198090Srdivacky * 7198090Srdivacky * a) Redistributions of source code must retain the above copyright notice, 8198090Srdivacky * this list of conditions and the following disclaimer. 9198090Srdivacky * 10198090Srdivacky * b) Redistributions in binary form must reproduce the above copyright 11198090Srdivacky * notice, this list of conditions and the following disclaimer in 12198090Srdivacky * the documentation and/or other materials provided with the distribution. 13198090Srdivacky * 14198090Srdivacky * c) Neither the name of Cisco Systems, Inc. nor the names of its 15198090Srdivacky * contributors may be used to endorse or promote products derived 16198090Srdivacky * from this software without specific prior written permission. 17198090Srdivacky * 18200581Srdivacky * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19198090Srdivacky * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 20198090Srdivacky * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21198090Srdivacky * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 22198090Srdivacky * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23198090Srdivacky * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24198090Srdivacky * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25198090Srdivacky * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26198090Srdivacky * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27198090Srdivacky * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 28198090Srdivacky * THE POSSIBILITY OF SUCH DAMAGE. 29198090Srdivacky */ 30198090Srdivacky 31198090Srdivacky 32198090Srdivacky/* $KAME: sctputil.h,v 1.15 2005/03/06 16:04:19 itojun Exp $ */ 33198090Srdivacky 34198090Srdivacky#include <sys/cdefs.h> 35198090Srdivacky__FBSDID("$FreeBSD: head/sys/netinet/sctputil.h 166675 2007-02-12 23:24:31Z rrs $"); 36198090Srdivacky#ifndef __sctputil_h__ 37198090Srdivacky#define __sctputil_h__ 38198090Srdivacky 39198090Srdivacky 40198090Srdivacky#if defined(_KERNEL) 41198090Srdivacky 42198090Srdivacky#ifdef SCTP_MBUF_LOGGING 43198090Srdivacky 44198090Srdivackystruct mbuf *sctp_m_free(struct mbuf *m); 45198090Srdivackyvoid sctp_m_freem(struct mbuf *m); 46198090Srdivacky 47198090Srdivacky#else 48198090Srdivacky#define sctp_m_free m_free 49198090Srdivacky#define sctp_m_freem m_freem 50198090Srdivacky#endif 51198090Srdivacky 52198090Srdivacky 53198090Srdivacky#define sctp_get_associd(stcb) ((sctp_assoc_t)stcb->asoc.assoc_id) 54226890Sdim 55198090Srdivacky 56198090Srdivacky/* 57198090Srdivacky * Function prototypes 58198090Srdivacky */ 59198090Srdivackystruct ifaddr *sctp_find_ifa_by_addr(struct sockaddr *sa); 60198090Srdivacky 61198090Srdivackyuint32_t sctp_select_initial_TSN(struct sctp_pcb *); 62198090Srdivacky 63198090Srdivackyuint32_t sctp_select_a_tag(struct sctp_inpcb *); 64226890Sdim 65198090Srdivackyint sctp_init_asoc(struct sctp_inpcb *, struct sctp_association *, int, uint32_t); 66198090Srdivacky 67198090Srdivackyvoid sctp_fill_random_store(struct sctp_pcb *); 68198090Srdivacky 69198090Srdivackyint 70198090Srdivackysctp_timer_start(int, struct sctp_inpcb *, struct sctp_tcb *, 71198090Srdivacky struct sctp_nets *); 72198090Srdivacky 73198090Srdivackyint 74198090Srdivackysctp_timer_stop(int, struct sctp_inpcb *, struct sctp_tcb *, 75198396Srdivacky struct sctp_nets *, uint32_t); 76198090Srdivacky 77198090Srdivackyuint32_t sctp_calculate_sum(struct mbuf *, int32_t *, uint32_t); 78198090Srdivacky 79198090Srdivackyvoid 80198090Srdivacky sctp_mtu_size_reset(struct sctp_inpcb *, struct sctp_association *, uint32_t); 81198090Srdivacky 82198090Srdivackyvoid 83198090Srdivackysctp_add_to_readq(struct sctp_inpcb *inp, 84198090Srdivacky struct sctp_tcb *stcb, 85198090Srdivacky struct sctp_queued_to_read *control, 86198090Srdivacky struct sockbuf *sb, 87198396Srdivacky int end); 88198090Srdivacky 89198090Srdivackyint 90198090Srdivackysctp_append_to_readq(struct sctp_inpcb *inp, 91198090Srdivacky struct sctp_tcb *stcb, 92198090Srdivacky struct sctp_queued_to_read *control, 93198090Srdivacky struct mbuf *m, 94198090Srdivacky int end, 95207618Srdivacky int new_cumack, 96207618Srdivacky struct sockbuf *sb); 97207618Srdivacky 98207618Srdivacky 99226890Sdimint find_next_best_mtu(int); 100207618Srdivacky 101207618Srdivackyvoid 102207618Srdivacky sctp_timeout_handler(void *); 103207618Srdivacky 104207618Srdivackyuint32_t 105218893Sdimsctp_calculate_rto(struct sctp_tcb *, struct sctp_association *, 106218893Sdim struct sctp_nets *, struct timeval *); 107218893Sdim 108218893Sdimuint32_t sctp_calculate_len(struct mbuf *); 109218893Sdim 110218893Sdimcaddr_t sctp_m_getptr(struct mbuf *, int, int, uint8_t *); 111218893Sdim 112226890Sdimstruct sctp_paramhdr * 113218893Sdimsctp_get_next_param(struct mbuf *, int, 114218893Sdim struct sctp_paramhdr *, int); 115218893Sdim 116218893Sdimint sctp_add_pad_tombuf(struct mbuf *, int); 117218893Sdim 118218893Sdimint sctp_pad_lastmbuf(struct mbuf *, int, struct mbuf *); 119202878Srdivacky 120202878Srdivackyvoid sctp_ulp_notify(uint32_t, struct sctp_tcb *, uint32_t, void *); 121202878Srdivacky 122202878Srdivackyvoid 123202878Srdivackysctp_pull_off_control_to_new_inp(struct sctp_inpcb *old_inp, 124226890Sdim struct sctp_inpcb *new_inp, 125202878Srdivacky struct sctp_tcb *stcb); 126202878Srdivacky 127202878Srdivacky 128202878Srdivackyvoid sctp_stop_timers_for_shutdown(struct sctp_tcb *); 129202878Srdivacky 130202878Srdivackyvoid sctp_report_all_outbound(struct sctp_tcb *, int); 131202878Srdivacky 132198090Srdivackyint sctp_expand_mapping_array(struct sctp_association *); 133198090Srdivacky 134198090Srdivackyvoid sctp_abort_notification(struct sctp_tcb *, int); 135198090Srdivacky 136198090Srdivacky/* We abort responding to an IP packet for some reason */ 137198090Srdivackyvoid 138198090Srdivackysctp_abort_association(struct sctp_inpcb *, struct sctp_tcb *, 139198090Srdivacky struct mbuf *, int, struct sctphdr *, struct mbuf *); 140198090Srdivacky 141198090Srdivacky/* We choose to abort via user input */ 142198090Srdivackyvoid 143198090Srdivackysctp_abort_an_association(struct sctp_inpcb *, struct sctp_tcb *, int, 144198090Srdivacky struct mbuf *); 145226890Sdim 146198090Srdivackyvoid 147198090Srdivackysctp_handle_ootb(struct mbuf *, int, int, struct sctphdr *, 148198090Srdivacky struct sctp_inpcb *, struct mbuf *); 149198090Srdivacky 150198090Srdivackyint sctp_is_there_an_abort_here(struct mbuf *, int, uint32_t *); 151198090Srdivackyuint32_t sctp_is_same_scope(struct sockaddr_in6 *, struct sockaddr_in6 *); 152198090Srdivacky 153198090Srdivackystruct sockaddr_in6 * 154198090Srdivacky sctp_recover_scope(struct sockaddr_in6 *, struct sockaddr_in6 *); 155198090Srdivacky 156198090Srdivacky#define sctp_recover_scope_mac(addr, store) do { \ 157198090Srdivacky if ((addr->sin6_family == AF_INET6) && \ 158198090Srdivacky (IN6_IS_SCOPE_LINKLOCAL(&addr->sin6_addr))) { \ 159198090Srdivacky *store = *addr; \ 160221345Sdim if (addr->sin6_scope_id == 0) { \ 161226890Sdim if (!sa6_recoverscope(store)) { \ 162221345Sdim addr = store; \ 163221345Sdim } \ 164198090Srdivacky } else { \ 165198090Srdivacky in6_clearscope(&addr->sin6_addr); \ 166198090Srdivacky addr = store; \ 167198090Srdivacky } \ 168198090Srdivacky } \ 169} while (0) 170 171 172int sctp_cmpaddr(struct sockaddr *, struct sockaddr *); 173 174void sctp_print_address(struct sockaddr *); 175void sctp_print_address_pkt(struct ip *, struct sctphdr *); 176 177void 178sctp_notify_partial_delivery_indication(struct sctp_tcb *stcb, 179 uint32_t error, int no_lock); 180 181int 182sctp_release_pr_sctp_chunk(struct sctp_tcb *, struct sctp_tmit_chunk *, 183 int, struct sctpchunk_listhead *); 184 185struct mbuf *sctp_generate_invmanparam(int); 186 187 188#ifdef SCTP_MBCNT_LOGGING 189void 190sctp_free_bufspace(struct sctp_tcb *, struct sctp_association *, 191 struct sctp_tmit_chunk *); 192 193#else 194#define sctp_free_bufspace(stcb, asoc, tp1, chk_cnt) \ 195do { \ 196 if (tp1->data != NULL) { \ 197 atomic_add_int(&((asoc)->chunks_on_out_queue), -chk_cnt); \ 198 if ((asoc)->total_output_queue_size >= tp1->book_size) { \ 199 atomic_add_int(&((asoc)->total_output_queue_size), -tp1->book_size); \ 200 } else { \ 201 (asoc)->total_output_queue_size = 0; \ 202 } \ 203 if (stcb->sctp_socket && ((stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || \ 204 (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL))) { \ 205 if (stcb->sctp_socket->so_snd.sb_cc >= tp1->book_size) { \ 206 atomic_add_int(&((stcb)->sctp_socket->so_snd.sb_cc), -tp1->book_size); \ 207 } else { \ 208 stcb->sctp_socket->so_snd.sb_cc = 0; \ 209 } \ 210 } \ 211 } \ 212} while (0) 213 214#endif 215 216#define sctp_free_spbufspace(stcb, asoc, sp) \ 217do { \ 218 if (sp->data != NULL) { \ 219 atomic_add_int(&(asoc)->chunks_on_out_queue, -1); \ 220 if ((asoc)->total_output_queue_size >= sp->length) { \ 221 atomic_add_int(&(asoc)->total_output_queue_size,sp->length); \ 222 } else { \ 223 (asoc)->total_output_queue_size = 0; \ 224 } \ 225 if (stcb->sctp_socket && ((stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || \ 226 (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL))) { \ 227 if (stcb->sctp_socket->so_snd.sb_cc >= sp->length) { \ 228 atomic_add_int(&stcb->sctp_socket->so_snd.sb_cc,sp->length); \ 229 } else { \ 230 stcb->sctp_socket->so_snd.sb_cc = 0; \ 231 } \ 232 } \ 233 } \ 234} while (0) 235 236#define sctp_snd_sb_alloc(stcb, sz) \ 237do { \ 238 atomic_add_int(&stcb->asoc.total_output_queue_size,sz); \ 239 if ((stcb->sctp_socket != NULL) && \ 240 ((stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || \ 241 (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL))) { \ 242 atomic_add_int(&stcb->sctp_socket->so_snd.sb_cc,sz); \ 243 } \ 244} while (0) 245 246 247int 248sctp_soreceive(struct socket *so, struct sockaddr **psa, 249 struct uio *uio, 250 struct mbuf **mp0, 251 struct mbuf **controlp, 252 int *flagsp); 253 254 255#ifdef SCTP_STAT_LOGGING 256void 257 sctp_misc_ints(uint8_t from, uint32_t a, uint32_t b, uint32_t c, uint32_t d); 258 259void 260sctp_wakeup_log(struct sctp_tcb *stcb, 261 uint32_t cumtsn, 262 uint32_t wake_cnt, int from); 263 264void sctp_log_strm_del_alt(struct sctp_tcb *stcb, uint32_t, uint16_t, uint16_t, int); 265 266void sctp_log_nagle_event(struct sctp_tcb *stcb, int action); 267 268 269void 270 sctp_log_mb(struct mbuf *m, int from); 271 272void 273sctp_sblog(struct sockbuf *sb, 274 struct sctp_tcb *stcb, int from, int incr); 275 276void 277sctp_log_strm_del(struct sctp_queued_to_read *control, 278 struct sctp_queued_to_read *poschk, 279 int from); 280void sctp_log_cwnd(struct sctp_tcb *stcb, struct sctp_nets *, int, uint8_t); 281void rto_logging(struct sctp_nets *net, int from); 282 283void sctp_log_closing(struct sctp_inpcb *inp, struct sctp_tcb *stcb, int16_t loc); 284 285void sctp_log_lock(struct sctp_inpcb *inp, struct sctp_tcb *stcb, uint8_t from); 286void sctp_log_maxburst(struct sctp_tcb *stcb, struct sctp_nets *, int, int, uint8_t); 287void sctp_log_block(uint8_t, struct socket *, struct sctp_association *, int); 288void sctp_log_rwnd(uint8_t, uint32_t, uint32_t, uint32_t); 289void sctp_log_mbcnt(uint8_t, uint32_t, uint32_t, uint32_t, uint32_t); 290void sctp_log_rwnd_set(uint8_t, uint32_t, uint32_t, uint32_t, uint32_t); 291int sctp_fill_stat_log(struct mbuf *); 292void sctp_log_fr(uint32_t, uint32_t, uint32_t, int); 293void sctp_log_sack(uint32_t, uint32_t, uint32_t, uint16_t, uint16_t, int); 294void sctp_log_map(uint32_t, uint32_t, uint32_t, int); 295 296void sctp_clr_stat_log(void); 297 298#endif 299 300#ifdef SCTP_AUDITING_ENABLED 301void 302sctp_auditing(int, struct sctp_inpcb *, struct sctp_tcb *, 303 struct sctp_nets *); 304void sctp_audit_log(uint8_t, uint8_t); 305 306#endif 307 308 309#endif /* _KERNEL */ 310#endif 311