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comparison: netwerk/sctp/src/netinet/sctputil.h
netwerk/sctp/src/netinet/sctputil.h
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| -1:000000000000 | 0:d3f99593656a |
|---|---|
| 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 #ifdef __FreeBSD__ | |
| 34 #include <sys/cdefs.h> | |
| 35 __FBSDID("$FreeBSD: head/sys/netinet/sctputil.h 243186 2012-11-17 20:04:04Z tuexen $"); | |
| 36 #endif | |
| 37 | |
| 38 #ifndef _NETINET_SCTP_UTIL_H_ | |
| 39 #define _NETINET_SCTP_UTIL_H_ | |
| 40 | |
| 41 #if defined(_KERNEL) || defined(__Userspace__) | |
| 42 | |
| 43 #define SCTP_READ_LOCK_HELD 1 | |
| 44 #define SCTP_READ_LOCK_NOT_HELD 0 | |
| 45 | |
| 46 #ifdef SCTP_ASOCLOG_OF_TSNS | |
| 47 void sctp_print_out_track_log(struct sctp_tcb *stcb); | |
| 48 #endif | |
| 49 | |
| 50 #ifdef SCTP_MBUF_LOGGING | |
| 51 struct mbuf *sctp_m_free(struct mbuf *m); | |
| 52 void sctp_m_freem(struct mbuf *m); | |
| 53 #else | |
| 54 #define sctp_m_free m_free | |
| 55 #define sctp_m_freem m_freem | |
| 56 #endif | |
| 57 | |
| 58 #if defined(SCTP_LOCAL_TRACE_BUF) || defined(__APPLE__) | |
| 59 void | |
| 60 sctp_log_trace(uint32_t fr, const char *str SCTP_UNUSED, uint32_t a, uint32_t b, uint32_t c, uint32_t d, uint32_t e, uint32_t f); | |
| 61 #endif | |
| 62 | |
| 63 #define sctp_get_associd(stcb) ((sctp_assoc_t)stcb->asoc.assoc_id) | |
| 64 | |
| 65 | |
| 66 /* | |
| 67 * Function prototypes | |
| 68 */ | |
| 69 uint32_t | |
| 70 sctp_get_ifa_hash_val(struct sockaddr *addr); | |
| 71 | |
| 72 struct sctp_ifa * | |
| 73 sctp_find_ifa_in_ep(struct sctp_inpcb *inp, struct sockaddr *addr, int hold_lock); | |
| 74 | |
| 75 struct sctp_ifa * | |
| 76 sctp_find_ifa_by_addr(struct sockaddr *addr, uint32_t vrf_id, int holds_lock); | |
| 77 | |
| 78 uint32_t sctp_select_initial_TSN(struct sctp_pcb *); | |
| 79 | |
| 80 uint32_t sctp_select_a_tag(struct sctp_inpcb *, uint16_t lport, uint16_t rport, int); | |
| 81 | |
| 82 int sctp_init_asoc(struct sctp_inpcb *, struct sctp_tcb *, uint32_t, uint32_t); | |
| 83 | |
| 84 void sctp_fill_random_store(struct sctp_pcb *); | |
| 85 | |
| 86 void | |
| 87 sctp_notify_stream_reset_add(struct sctp_tcb *stcb, uint16_t numberin, | |
| 88 uint16_t numberout, int flag); | |
| 89 void | |
| 90 sctp_notify_stream_reset_tsn(struct sctp_tcb *stcb, uint32_t sending_tsn, uint32_t recv_tsn, int flag); | |
| 91 | |
| 92 void | |
| 93 sctp_timer_start(int, struct sctp_inpcb *, struct sctp_tcb *, | |
| 94 struct sctp_nets *); | |
| 95 | |
| 96 void | |
| 97 sctp_timer_stop(int, struct sctp_inpcb *, struct sctp_tcb *, | |
| 98 struct sctp_nets *, uint32_t); | |
| 99 | |
| 100 int | |
| 101 sctp_dynamic_set_primary(struct sockaddr *sa, uint32_t vrf_id); | |
| 102 | |
| 103 void | |
| 104 sctp_mtu_size_reset(struct sctp_inpcb *, struct sctp_association *, uint32_t); | |
| 105 | |
| 106 void | |
| 107 sctp_add_to_readq(struct sctp_inpcb *inp, | |
| 108 struct sctp_tcb *stcb, | |
| 109 struct sctp_queued_to_read *control, | |
| 110 struct sockbuf *sb, | |
| 111 int end, | |
| 112 int inpread_locked, | |
| 113 int so_locked | |
| 114 #if !defined(__APPLE__) && !defined(SCTP_SO_LOCK_TESTING) | |
| 115 SCTP_UNUSED | |
| 116 #endif | |
| 117 ); | |
| 118 | |
| 119 int | |
| 120 sctp_append_to_readq(struct sctp_inpcb *inp, | |
| 121 struct sctp_tcb *stcb, | |
| 122 struct sctp_queued_to_read *control, | |
| 123 struct mbuf *m, | |
| 124 int end, | |
| 125 int new_cumack, | |
| 126 struct sockbuf *sb); | |
| 127 | |
| 128 | |
| 129 void sctp_iterator_worker(void); | |
| 130 | |
| 131 uint32_t sctp_get_prev_mtu(uint32_t); | |
| 132 uint32_t sctp_get_next_mtu(uint32_t); | |
| 133 | |
| 134 void | |
| 135 sctp_timeout_handler(void *); | |
| 136 | |
| 137 uint32_t | |
| 138 sctp_calculate_rto(struct sctp_tcb *, struct sctp_association *, | |
| 139 struct sctp_nets *, struct timeval *, int, int); | |
| 140 | |
| 141 uint32_t sctp_calculate_len(struct mbuf *); | |
| 142 | |
| 143 caddr_t sctp_m_getptr(struct mbuf *, int, int, uint8_t *); | |
| 144 | |
| 145 struct sctp_paramhdr * | |
| 146 sctp_get_next_param(struct mbuf *, int, | |
| 147 struct sctp_paramhdr *, int); | |
| 148 | |
| 149 int sctp_add_pad_tombuf(struct mbuf *, int); | |
| 150 | |
| 151 int sctp_pad_lastmbuf(struct mbuf *, int, struct mbuf *); | |
| 152 | |
| 153 void sctp_ulp_notify(uint32_t, struct sctp_tcb *, uint32_t, void *, int | |
| 154 #if !defined(__APPLE__) && !defined(SCTP_SO_LOCK_TESTING) | |
| 155 SCTP_UNUSED | |
| 156 #endif | |
| 157 ); | |
| 158 | |
| 159 void | |
| 160 sctp_pull_off_control_to_new_inp(struct sctp_inpcb *old_inp, | |
| 161 struct sctp_inpcb *new_inp, | |
| 162 struct sctp_tcb *stcb, int waitflags); | |
| 163 | |
| 164 | |
| 165 void sctp_stop_timers_for_shutdown(struct sctp_tcb *); | |
| 166 | |
| 167 void sctp_report_all_outbound(struct sctp_tcb *, uint16_t, int, int | |
| 168 #if !defined(__APPLE__) && !defined(SCTP_SO_LOCK_TESTING) | |
| 169 SCTP_UNUSED | |
| 170 #endif | |
| 171 ); | |
| 172 | |
| 173 int sctp_expand_mapping_array(struct sctp_association *, uint32_t); | |
| 174 | |
| 175 void sctp_abort_notification(struct sctp_tcb *, uint8_t, uint16_t, | |
| 176 struct sctp_abort_chunk *, int | |
| 177 #if !defined(__APPLE__) && !defined(SCTP_SO_LOCK_TESTING) | |
| 178 SCTP_UNUSED | |
| 179 #endif | |
| 180 ); | |
| 181 | |
| 182 /* We abort responding to an IP packet for some reason */ | |
| 183 void | |
| 184 sctp_abort_association(struct sctp_inpcb *, struct sctp_tcb *, struct mbuf *, | |
| 185 int, struct sockaddr *, struct sockaddr *, | |
| 186 struct sctphdr *, struct mbuf *, | |
| 187 #if defined(__FreeBSD__) | |
| 188 uint8_t, uint32_t, | |
| 189 #endif | |
| 190 uint32_t, uint16_t); | |
| 191 | |
| 192 | |
| 193 /* We choose to abort via user input */ | |
| 194 void | |
| 195 sctp_abort_an_association(struct sctp_inpcb *, struct sctp_tcb *, | |
| 196 struct mbuf *, int | |
| 197 #if !defined(__APPLE__) && !defined(SCTP_SO_LOCK_TESTING) | |
| 198 SCTP_UNUSED | |
| 199 #endif | |
| 200 ); | |
| 201 | |
| 202 void sctp_handle_ootb(struct mbuf *, int, int, | |
| 203 struct sockaddr *, struct sockaddr *, | |
| 204 struct sctphdr *, struct sctp_inpcb *, | |
| 205 #if defined(__FreeBSD__) | |
| 206 uint8_t, uint32_t, | |
| 207 #endif | |
| 208 uint32_t, uint16_t); | |
| 209 | |
| 210 int sctp_connectx_helper_add(struct sctp_tcb *stcb, struct sockaddr *addr, | |
| 211 int totaddr, int *error); | |
| 212 | |
| 213 struct sctp_tcb * | |
| 214 sctp_connectx_helper_find(struct sctp_inpcb *inp, struct sockaddr *addr, | |
| 215 int *totaddr, int *num_v4, int *num_v6, int *error, int limit, int *bad_addr); | |
| 216 | |
| 217 int sctp_is_there_an_abort_here(struct mbuf *, int, uint32_t *); | |
| 218 #ifdef INET6 | |
| 219 uint32_t sctp_is_same_scope(struct sockaddr_in6 *, struct sockaddr_in6 *); | |
| 220 | |
| 221 #if defined(SCTP_EMBEDDED_V6_SCOPE) | |
| 222 struct sockaddr_in6 * | |
| 223 sctp_recover_scope(struct sockaddr_in6 *, struct sockaddr_in6 *); | |
| 224 | |
| 225 #ifdef SCTP_KAME | |
| 226 #define sctp_recover_scope_mac(addr, store) do { \ | |
| 227 if ((addr->sin6_family == AF_INET6) && \ | |
| 228 (IN6_IS_SCOPE_LINKLOCAL(&addr->sin6_addr))) { \ | |
| 229 *store = *addr; \ | |
| 230 if (addr->sin6_scope_id == 0) { \ | |
| 231 if (!sa6_recoverscope(store)) { \ | |
| 232 addr = store; \ | |
| 233 } \ | |
| 234 } else { \ | |
| 235 in6_clearscope(&addr->sin6_addr); \ | |
| 236 addr = store; \ | |
| 237 } \ | |
| 238 } \ | |
| 239 } while (0) | |
| 240 #else | |
| 241 #define sctp_recover_scope_mac(addr, store) do { \ | |
| 242 if ((addr->sin6_family == AF_INET6) && \ | |
| 243 (IN6_IS_SCOPE_LINKLOCAL(&addr->sin6_addr))) { \ | |
| 244 *store = *addr; \ | |
| 245 if (addr->sin6_scope_id == 0) { \ | |
| 246 if (!in6_recoverscope(store, &store->sin6_addr, \ | |
| 247 NULL)) { \ | |
| 248 addr = store; \ | |
| 249 } \ | |
| 250 } else { \ | |
| 251 in6_clearscope(&addr->sin6_addr); \ | |
| 252 addr = store; \ | |
| 253 } \ | |
| 254 } \ | |
| 255 } while (0) | |
| 256 #endif | |
| 257 #endif | |
| 258 #endif | |
| 259 | |
| 260 int sctp_cmpaddr(struct sockaddr *, struct sockaddr *); | |
| 261 | |
| 262 void sctp_print_address(struct sockaddr *); | |
| 263 | |
| 264 int | |
| 265 sctp_release_pr_sctp_chunk(struct sctp_tcb *, struct sctp_tmit_chunk *, | |
| 266 uint8_t, int | |
| 267 #if !defined(__APPLE__) && !defined(SCTP_SO_LOCK_TESTING) | |
| 268 SCTP_UNUSED | |
| 269 #endif | |
| 270 ); | |
| 271 | |
| 272 struct mbuf *sctp_generate_invmanparam(int); | |
| 273 | |
| 274 void sctp_bindx_add_address(struct socket *so, struct sctp_inpcb *inp, | |
| 275 struct sockaddr *sa, sctp_assoc_t assoc_id, | |
| 276 uint32_t vrf_id, int *error, void *p); | |
| 277 void sctp_bindx_delete_address(struct sctp_inpcb *inp, | |
| 278 struct sockaddr *sa, sctp_assoc_t assoc_id, | |
| 279 uint32_t vrf_id, int *error); | |
| 280 | |
| 281 int sctp_local_addr_count(struct sctp_tcb *stcb); | |
| 282 | |
| 283 #ifdef SCTP_MBCNT_LOGGING | |
| 284 void | |
| 285 sctp_free_bufspace(struct sctp_tcb *, struct sctp_association *, | |
| 286 struct sctp_tmit_chunk *, int); | |
| 287 | |
| 288 #else | |
| 289 #define sctp_free_bufspace(stcb, asoc, tp1, chk_cnt) \ | |
| 290 do { \ | |
| 291 if (tp1->data != NULL) { \ | |
| 292 atomic_subtract_int(&((asoc)->chunks_on_out_queue), chk_cnt); \ | |
| 293 if ((asoc)->total_output_queue_size >= tp1->book_size) { \ | |
| 294 atomic_subtract_int(&((asoc)->total_output_queue_size), tp1->book_size); \ | |
| 295 } else { \ | |
| 296 (asoc)->total_output_queue_size = 0; \ | |
| 297 } \ | |
| 298 if (stcb->sctp_socket && ((stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || \ | |
| 299 (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL))) { \ | |
| 300 if (stcb->sctp_socket->so_snd.sb_cc >= tp1->book_size) { \ | |
| 301 atomic_subtract_int(&((stcb)->sctp_socket->so_snd.sb_cc), tp1->book_size); \ | |
| 302 } else { \ | |
| 303 stcb->sctp_socket->so_snd.sb_cc = 0; \ | |
| 304 } \ | |
| 305 } \ | |
| 306 } \ | |
| 307 } while (0) | |
| 308 | |
| 309 #endif | |
| 310 | |
| 311 #define sctp_free_spbufspace(stcb, asoc, sp) \ | |
| 312 do { \ | |
| 313 if (sp->data != NULL) { \ | |
| 314 if ((asoc)->total_output_queue_size >= sp->length) { \ | |
| 315 atomic_subtract_int(&(asoc)->total_output_queue_size, sp->length); \ | |
| 316 } else { \ | |
| 317 (asoc)->total_output_queue_size = 0; \ | |
| 318 } \ | |
| 319 if (stcb->sctp_socket && ((stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || \ | |
| 320 (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL))) { \ | |
| 321 if (stcb->sctp_socket->so_snd.sb_cc >= sp->length) { \ | |
| 322 atomic_subtract_int(&stcb->sctp_socket->so_snd.sb_cc,sp->length); \ | |
| 323 } else { \ | |
| 324 stcb->sctp_socket->so_snd.sb_cc = 0; \ | |
| 325 } \ | |
| 326 } \ | |
| 327 } \ | |
| 328 } while (0) | |
| 329 | |
| 330 #define sctp_snd_sb_alloc(stcb, sz) \ | |
| 331 do { \ | |
| 332 atomic_add_int(&stcb->asoc.total_output_queue_size,sz); \ | |
| 333 if ((stcb->sctp_socket != NULL) && \ | |
| 334 ((stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || \ | |
| 335 (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL))) { \ | |
| 336 atomic_add_int(&stcb->sctp_socket->so_snd.sb_cc,sz); \ | |
| 337 } \ | |
| 338 } while (0) | |
| 339 | |
| 340 /* functions to start/stop udp tunneling */ | |
| 341 #if defined(__APPLE__) || defined(__FreeBSD__) | |
| 342 void sctp_over_udp_stop(void); | |
| 343 int sctp_over_udp_start(void); | |
| 344 #endif | |
| 345 #if defined(__Windows__) | |
| 346 void sctp_over_udp_restart(void); | |
| 347 #endif | |
| 348 | |
| 349 int | |
| 350 sctp_soreceive(struct socket *so, struct sockaddr **psa, | |
| 351 struct uio *uio, | |
| 352 struct mbuf **mp0, | |
| 353 struct mbuf **controlp, | |
| 354 int *flagsp); | |
| 355 | |
| 356 void | |
| 357 sctp_misc_ints(uint8_t from, uint32_t a, uint32_t b, uint32_t c, uint32_t d); | |
| 358 | |
| 359 void | |
| 360 sctp_wakeup_log(struct sctp_tcb *stcb, | |
| 361 uint32_t wake_cnt, int from); | |
| 362 | |
| 363 void sctp_log_strm_del_alt(struct sctp_tcb *stcb, uint32_t, uint16_t, uint16_t, int); | |
| 364 | |
| 365 void sctp_log_nagle_event(struct sctp_tcb *stcb, int action); | |
| 366 | |
| 367 | |
| 368 void | |
| 369 sctp_log_mb(struct mbuf *m, int from); | |
| 370 | |
| 371 void | |
| 372 sctp_sblog(struct sockbuf *sb, | |
| 373 struct sctp_tcb *stcb, int from, int incr); | |
| 374 | |
| 375 void | |
| 376 sctp_log_strm_del(struct sctp_queued_to_read *control, | |
| 377 struct sctp_queued_to_read *poschk, | |
| 378 int from); | |
| 379 void sctp_log_cwnd(struct sctp_tcb *stcb, struct sctp_nets *, int, uint8_t); | |
| 380 void rto_logging(struct sctp_nets *net, int from); | |
| 381 | |
| 382 void sctp_log_closing(struct sctp_inpcb *inp, struct sctp_tcb *stcb, int16_t loc); | |
| 383 | |
| 384 void sctp_log_lock(struct sctp_inpcb *inp, struct sctp_tcb *stcb, uint8_t from); | |
| 385 void sctp_log_maxburst(struct sctp_tcb *stcb, struct sctp_nets *, int, int, uint8_t); | |
| 386 void sctp_log_block(uint8_t, struct sctp_association *, int); | |
| 387 void sctp_log_rwnd(uint8_t, uint32_t, uint32_t, uint32_t); | |
| 388 void sctp_log_mbcnt(uint8_t, uint32_t, uint32_t, uint32_t, uint32_t); | |
| 389 void sctp_log_rwnd_set(uint8_t, uint32_t, uint32_t, uint32_t, uint32_t); | |
| 390 int sctp_fill_stat_log(void *, size_t *); | |
| 391 void sctp_log_fr(uint32_t, uint32_t, uint32_t, int); | |
| 392 void sctp_log_sack(uint32_t, uint32_t, uint32_t, uint16_t, uint16_t, int); | |
| 393 void sctp_log_map(uint32_t, uint32_t, uint32_t, int); | |
| 394 void sctp_print_mapping_array(struct sctp_association *asoc); | |
| 395 void sctp_clr_stat_log(void); | |
| 396 | |
| 397 | |
| 398 #ifdef SCTP_AUDITING_ENABLED | |
| 399 void | |
| 400 sctp_auditing(int, struct sctp_inpcb *, struct sctp_tcb *, | |
| 401 struct sctp_nets *); | |
| 402 void sctp_audit_log(uint8_t, uint8_t); | |
| 403 | |
| 404 #endif | |
| 405 #endif /* _KERNEL */ | |
| 406 #endif |
