| 1 | /* $KAME: sctp_usrreq.c,v 1.47 2005/03/06 16:04:18 itojun Exp $ */ |
| 2 | /* $DragonFly: src/sys/netinet/sctp_usrreq.c,v 1.14 2008/04/20 13:44:25 swildner Exp $ */ |
| 3 | |
| 4 | /* |
| 5 | * Copyright (c) 2001, 2002, 2003, 2004 Cisco Systems, Inc. |
| 6 | * 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 |
| 10 | * are met: |
| 11 | * 1. Redistributions of source code must retain the above copyright |
| 12 | * notice, this list of conditions and the following disclaimer. |
| 13 | * 2. Redistributions in binary form must reproduce the above copyright |
| 14 | * notice, this list of conditions and the following disclaimer in the |
| 15 | * documentation and/or other materials provided with the distribution. |
| 16 | * 3. All advertising materials mentioning features or use of this software |
| 17 | * must display the following acknowledgement: |
| 18 | * This product includes software developed by Cisco Systems, Inc. |
| 19 | * 4. Neither the name of the project nor the names of its contributors |
| 20 | * may be used to endorse or promote products derived from this software |
| 21 | * without specific prior written permission. |
| 22 | * |
| 23 | * THIS SOFTWARE IS PROVIDED BY CISCO SYSTEMS AND CONTRIBUTORS ``AS IS'' AND |
| 24 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 25 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 26 | * ARE DISCLAIMED. IN NO EVENT SHALL CISCO SYSTEMS OR CONTRIBUTORS BE LIABLE |
| 27 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 28 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 29 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 30 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 31 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 32 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 33 | * SUCH DAMAGE. |
| 34 | */ |
| 35 | #if !(defined(__OpenBSD__) || defined(__APPLE__)) |
| 36 | #include "opt_ipsec.h" |
| 37 | #endif |
| 38 | #if defined(__FreeBSD__) || defined(__DragonFly__) |
| 39 | #include "opt_inet6.h" |
| 40 | #include "opt_inet.h" |
| 41 | #endif |
| 42 | #if defined(__NetBSD__) |
| 43 | #include "opt_inet.h" |
| 44 | #endif |
| 45 | |
| 46 | #ifdef __APPLE__ |
| 47 | #include <sctp.h> |
| 48 | #elif !defined(__OpenBSD__) |
| 49 | #include "opt_sctp.h" |
| 50 | #endif |
| 51 | |
| 52 | #include <sys/param.h> |
| 53 | #include <sys/systm.h> |
| 54 | #include <sys/kernel.h> |
| 55 | #include <sys/malloc.h> |
| 56 | #include <sys/mbuf.h> |
| 57 | #include <sys/domain.h> |
| 58 | #include <sys/proc.h> |
| 59 | #include <sys/priv.h> |
| 60 | #include <sys/protosw.h> |
| 61 | #include <sys/socket.h> |
| 62 | #include <sys/socketvar.h> |
| 63 | #include <sys/socketvar2.h> |
| 64 | #include <sys/sysctl.h> |
| 65 | #include <sys/syslog.h> |
| 66 | #include <sys/thread2.h> |
| 67 | #include <net/if.h> |
| 68 | #include <net/if_types.h> |
| 69 | #if defined(__FreeBSD__) || defined(__APPLE__) || defined(__DragonFly__) |
| 70 | #include <net/if_var.h> |
| 71 | #endif |
| 72 | #include <net/route.h> |
| 73 | #include <netinet/in.h> |
| 74 | #include <netinet/in_systm.h> |
| 75 | #include <netinet/ip.h> |
| 76 | #include <netinet/ip6.h> |
| 77 | #include <netinet/in_pcb.h> |
| 78 | #include <netinet/in_var.h> |
| 79 | #include <netinet/ip_var.h> |
| 80 | #include <netinet6/ip6_var.h> |
| 81 | #include <netinet6/in6_var.h> |
| 82 | |
| 83 | #include <netinet/ip_icmp.h> |
| 84 | #include <netinet/icmp_var.h> |
| 85 | #include <netinet/sctp_pcb.h> |
| 86 | #include <netinet/sctp_header.h> |
| 87 | #include <netinet/sctp_var.h> |
| 88 | #include <netinet/sctp_output.h> |
| 89 | #include <netinet/sctp_uio.h> |
| 90 | #include <netinet/sctp_asconf.h> |
| 91 | #include <netinet/sctputil.h> |
| 92 | #include <netinet/sctp_indata.h> |
| 93 | #include <netinet/sctp_asconf.h> |
| 94 | #ifdef IPSEC |
| 95 | #ifndef __OpenBSD__ |
| 96 | #include <netinet6/ipsec.h> |
| 97 | #include <netproto/key/key.h> |
| 98 | #else |
| 99 | #undef IPSEC |
| 100 | #endif |
| 101 | #endif /* IPSEC */ |
| 102 | |
| 103 | #include <net/net_osdep.h> |
| 104 | |
| 105 | #if defined(HAVE_NRL_INPCB) || defined(__FreeBSD__) || defined(__DragonFly__) |
| 106 | #ifndef in6pcb |
| 107 | #define in6pcb inpcb |
| 108 | #endif |
| 109 | #ifndef sotoin6pcb |
| 110 | #define sotoin6pcb sotoinpcb |
| 111 | #endif |
| 112 | #endif |
| 113 | |
| 114 | #ifdef SCTP_DEBUG |
| 115 | extern u_int32_t sctp_debug_on; |
| 116 | #endif /* SCTP_DEBUG */ |
| 117 | |
| 118 | /* |
| 119 | * sysctl tunable variables |
| 120 | */ |
| 121 | int sctp_auto_asconf = SCTP_DEFAULT_AUTO_ASCONF; |
| 122 | int sctp_max_burst_default = SCTP_DEF_MAX_BURST; |
| 123 | int sctp_peer_chunk_oh = sizeof(struct mbuf); |
| 124 | int sctp_strict_init = 1; |
| 125 | int sctp_no_csum_on_loopback = 1; |
| 126 | unsigned int sctp_max_chunks_on_queue = SCTP_ASOC_MAX_CHUNKS_ON_QUEUE; |
| 127 | int sctp_sendspace = (128 * 1024); |
| 128 | int sctp_recvspace = 128 * (1024 + |
| 129 | #ifdef INET6 |
| 130 | sizeof(struct sockaddr_in6) |
| 131 | #else |
| 132 | sizeof(struct sockaddr_in) |
| 133 | #endif |
| 134 | ); |
| 135 | int sctp_strict_sacks = 0; |
| 136 | int sctp_ecn = 1; |
| 137 | int sctp_ecn_nonce = 0; |
| 138 | |
| 139 | unsigned int sctp_delayed_sack_time_default = SCTP_RECV_MSEC; |
| 140 | unsigned int sctp_heartbeat_interval_default = SCTP_HB_DEFAULT_MSEC; |
| 141 | unsigned int sctp_pmtu_raise_time_default = SCTP_DEF_PMTU_RAISE_SEC; |
| 142 | unsigned int sctp_shutdown_guard_time_default = SCTP_DEF_MAX_SHUTDOWN_SEC; |
| 143 | unsigned int sctp_secret_lifetime_default = SCTP_DEFAULT_SECRET_LIFE_SEC; |
| 144 | unsigned int sctp_rto_max_default = SCTP_RTO_UPPER_BOUND; |
| 145 | unsigned int sctp_rto_min_default = SCTP_RTO_LOWER_BOUND; |
| 146 | unsigned int sctp_rto_initial_default = SCTP_RTO_INITIAL; |
| 147 | unsigned int sctp_init_rto_max_default = SCTP_RTO_UPPER_BOUND; |
| 148 | unsigned int sctp_valid_cookie_life_default = SCTP_DEFAULT_COOKIE_LIFE; |
| 149 | unsigned int sctp_init_rtx_max_default = SCTP_DEF_MAX_INIT; |
| 150 | unsigned int sctp_assoc_rtx_max_default = SCTP_DEF_MAX_SEND; |
| 151 | unsigned int sctp_path_rtx_max_default = SCTP_DEF_MAX_SEND/2; |
| 152 | unsigned int sctp_nr_outgoing_streams_default = SCTP_OSTREAM_INITIAL; |
| 153 | |
| 154 | void |
| 155 | sctp_init(void) |
| 156 | { |
| 157 | #ifdef __OpenBSD__ |
| 158 | #define nmbclusters nmbclust |
| 159 | #endif |
| 160 | /* Init the SCTP pcb in sctp_pcb.c */ |
| 161 | u_long sb_max_adj; |
| 162 | |
| 163 | sctp_pcb_init(); |
| 164 | |
| 165 | #ifndef __OpenBSD__ |
| 166 | if (nmbclusters > SCTP_ASOC_MAX_CHUNKS_ON_QUEUE) |
| 167 | sctp_max_chunks_on_queue = nmbclusters; |
| 168 | #else |
| 169 | /* if (nmbclust > SCTP_ASOC_MAX_CHUNKS_ON_QUEUE) |
| 170 | sctp_max_chunks_on_queue = nmbclust; FIX ME */ |
| 171 | sctp_max_chunks_on_queue = nmbclust * 2; |
| 172 | #endif |
| 173 | /* |
| 174 | * Allow a user to take no more than 1/2 the number of clusters |
| 175 | * or the SB_MAX whichever is smaller for the send window. |
| 176 | */ |
| 177 | sb_max_adj = (u_long)((u_quad_t)(SB_MAX) * MCLBYTES / (MSIZE + MCLBYTES)); |
| 178 | sctp_sendspace = min((min(SB_MAX, sb_max_adj)), |
| 179 | #ifndef __OpenBSD__ |
| 180 | ((nmbclusters/2) * SCTP_DEFAULT_MAXSEGMENT)); |
| 181 | #else |
| 182 | ((nmbclust/2) * SCTP_DEFAULT_MAXSEGMENT)); |
| 183 | #endif |
| 184 | /* |
| 185 | * Now for the recv window, should we take the same amount? |
| 186 | * or should I do 1/2 the SB_MAX instead in the SB_MAX min above. |
| 187 | * For now I will just copy. |
| 188 | */ |
| 189 | sctp_recvspace = sctp_sendspace; |
| 190 | #ifdef __OpenBSD__ |
| 191 | #undef nmbclusters |
| 192 | #endif |
| 193 | } |
| 194 | |
| 195 | #ifdef INET6 |
| 196 | void |
| 197 | ip_2_ip6_hdr(struct ip6_hdr *ip6, struct ip *ip) |
| 198 | { |
| 199 | bzero(ip6, sizeof(*ip6)); |
| 200 | |
| 201 | ip6->ip6_vfc = IPV6_VERSION; |
| 202 | ip6->ip6_plen = ip->ip_len; |
| 203 | ip6->ip6_nxt = ip->ip_p; |
| 204 | ip6->ip6_hlim = ip->ip_ttl; |
| 205 | ip6->ip6_src.s6_addr32[2] = ip6->ip6_dst.s6_addr32[2] = |
| 206 | IPV6_ADDR_INT32_SMP; |
| 207 | ip6->ip6_src.s6_addr32[3] = ip->ip_src.s_addr; |
| 208 | ip6->ip6_dst.s6_addr32[3] = ip->ip_dst.s_addr; |
| 209 | } |
| 210 | #endif /* INET6 */ |
| 211 | |
| 212 | static void |
| 213 | sctp_split_chunks(struct sctp_association *asoc, |
| 214 | struct sctp_stream_out *strm, |
| 215 | struct sctp_tmit_chunk *chk) |
| 216 | { |
| 217 | struct sctp_tmit_chunk *new_chk; |
| 218 | |
| 219 | /* First we need a chunk */ |
| 220 | new_chk = (struct sctp_tmit_chunk *)SCTP_ZONE_GET(sctppcbinfo.ipi_zone_chunk); |
| 221 | if (new_chk == NULL) { |
| 222 | chk->flags |= CHUNK_FLAGS_FRAGMENT_OK; |
| 223 | return; |
| 224 | } |
| 225 | sctppcbinfo.ipi_count_chunk++; |
| 226 | sctppcbinfo.ipi_gencnt_chunk++; |
| 227 | /* Copy it all */ |
| 228 | *new_chk = *chk; |
| 229 | /* split the data */ |
| 230 | new_chk->data = m_split(chk->data, (chk->send_size>>1), MB_DONTWAIT); |
| 231 | if (new_chk->data == NULL) { |
| 232 | /* Can't split */ |
| 233 | chk->flags |= CHUNK_FLAGS_FRAGMENT_OK; |
| 234 | SCTP_ZONE_FREE(sctppcbinfo.ipi_zone_chunk, new_chk); |
| 235 | sctppcbinfo.ipi_count_chunk--; |
| 236 | if ((int)sctppcbinfo.ipi_count_chunk < 0) { |
| 237 | panic("Chunk count is negative"); |
| 238 | } |
| 239 | sctppcbinfo.ipi_gencnt_chunk++; |
| 240 | return; |
| 241 | |
| 242 | } |
| 243 | /* Data is now split adjust sizes */ |
| 244 | chk->send_size >>= 1; |
| 245 | new_chk->send_size >>= 1; |
| 246 | |
| 247 | chk->book_size >>= 1; |
| 248 | new_chk->book_size >>= 1; |
| 249 | |
| 250 | /* now adjust the marks */ |
| 251 | chk->rec.data.rcv_flags |= SCTP_DATA_FIRST_FRAG; |
| 252 | chk->rec.data.rcv_flags &= ~SCTP_DATA_LAST_FRAG; |
| 253 | |
| 254 | new_chk->rec.data.rcv_flags &= ~SCTP_DATA_FIRST_FRAG; |
| 255 | new_chk->rec.data.rcv_flags |= SCTP_DATA_LAST_FRAG; |
| 256 | |
| 257 | /* Increase ref count if dest is set */ |
| 258 | if (chk->whoTo) { |
| 259 | new_chk->whoTo->ref_count++; |
| 260 | } |
| 261 | /* now drop it on the end of the list*/ |
| 262 | asoc->stream_queue_cnt++; |
| 263 | TAILQ_INSERT_AFTER(&strm->outqueue, chk, new_chk, sctp_next); |
| 264 | } |
| 265 | |
| 266 | static void |
| 267 | sctp_notify_mbuf(struct sctp_inpcb *inp, |
| 268 | struct sctp_tcb *stcb, |
| 269 | struct sctp_nets *net, |
| 270 | struct ip *ip, |
| 271 | struct sctphdr *sh) |
| 272 | |
| 273 | { |
| 274 | struct icmp *icmph; |
| 275 | int totsz; |
| 276 | uint16_t nxtsz; |
| 277 | |
| 278 | /* protection */ |
| 279 | if ((inp == NULL) || (stcb == NULL) || (net == NULL) || |
| 280 | (ip == NULL) || (sh == NULL)) { |
| 281 | if (stcb != NULL) |
| 282 | SCTP_TCB_UNLOCK(stcb); |
| 283 | return; |
| 284 | } |
| 285 | /* First job is to verify the vtag matches what I would send */ |
| 286 | if (ntohl(sh->v_tag) != (stcb->asoc.peer_vtag)) { |
| 287 | SCTP_TCB_UNLOCK(stcb); |
| 288 | return; |
| 289 | } |
| 290 | icmph = (struct icmp *)((caddr_t)ip - (sizeof(struct icmp) - |
| 291 | sizeof(struct ip))); |
| 292 | if (icmph->icmp_type != ICMP_UNREACH) { |
| 293 | /* We only care about unreachable */ |
| 294 | SCTP_TCB_UNLOCK(stcb); |
| 295 | return; |
| 296 | } |
| 297 | if (icmph->icmp_code != ICMP_UNREACH_NEEDFRAG) { |
| 298 | /* not a unreachable message due to frag. */ |
| 299 | SCTP_TCB_UNLOCK(stcb); |
| 300 | return; |
| 301 | } |
| 302 | totsz = ip->ip_len; |
| 303 | nxtsz = ntohs(icmph->icmp_seq); |
| 304 | if (nxtsz == 0) { |
| 305 | /* |
| 306 | * old type router that does not tell us what the next size |
| 307 | * mtu is. Rats we will have to guess (in a educated fashion |
| 308 | * of course) |
| 309 | */ |
| 310 | nxtsz = find_next_best_mtu(totsz); |
| 311 | } |
| 312 | |
| 313 | /* Stop any PMTU timer */ |
| 314 | sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, NULL); |
| 315 | |
| 316 | /* Adjust destination size limit */ |
| 317 | if (net->mtu > nxtsz) { |
| 318 | net->mtu = nxtsz; |
| 319 | } |
| 320 | /* now what about the ep? */ |
| 321 | if (stcb->asoc.smallest_mtu > nxtsz) { |
| 322 | struct sctp_tmit_chunk *chk, *nchk; |
| 323 | struct sctp_stream_out *strm; |
| 324 | /* Adjust that too */ |
| 325 | stcb->asoc.smallest_mtu = nxtsz; |
| 326 | /* now off to subtract IP_DF flag if needed */ |
| 327 | |
| 328 | TAILQ_FOREACH(chk, &stcb->asoc.send_queue, sctp_next) { |
| 329 | if ((chk->send_size+IP_HDR_SIZE) > nxtsz) { |
| 330 | chk->flags |= CHUNK_FLAGS_FRAGMENT_OK; |
| 331 | } |
| 332 | } |
| 333 | TAILQ_FOREACH(chk, &stcb->asoc.sent_queue, sctp_next) { |
| 334 | if ((chk->send_size+IP_HDR_SIZE) > nxtsz) { |
| 335 | /* |
| 336 | * For this guy we also mark for immediate |
| 337 | * resend since we sent to big of chunk |
| 338 | */ |
| 339 | chk->flags |= CHUNK_FLAGS_FRAGMENT_OK; |
| 340 | if (chk->sent != SCTP_DATAGRAM_RESEND) { |
| 341 | stcb->asoc.sent_queue_retran_cnt++; |
| 342 | } |
| 343 | chk->sent = SCTP_DATAGRAM_RESEND; |
| 344 | chk->rec.data.doing_fast_retransmit = 0; |
| 345 | |
| 346 | /* Clear any time so NO RTT is being done */ |
| 347 | chk->do_rtt = 0; |
| 348 | stcb->asoc.total_flight -= chk->book_size; |
| 349 | if (stcb->asoc.total_flight < 0) { |
| 350 | stcb->asoc.total_flight = 0; |
| 351 | } |
| 352 | stcb->asoc.total_flight_count--; |
| 353 | if (stcb->asoc.total_flight_count < 0) { |
| 354 | stcb->asoc.total_flight_count = 0; |
| 355 | } |
| 356 | net->flight_size -= chk->book_size; |
| 357 | if (net->flight_size < 0) { |
| 358 | net->flight_size = 0; |
| 359 | } |
| 360 | } |
| 361 | } |
| 362 | TAILQ_FOREACH(strm, &stcb->asoc.out_wheel, next_spoke) { |
| 363 | chk = TAILQ_FIRST(&strm->outqueue); |
| 364 | while (chk) { |
| 365 | nchk = TAILQ_NEXT(chk, sctp_next); |
| 366 | if ((chk->send_size+SCTP_MED_OVERHEAD) > nxtsz) { |
| 367 | sctp_split_chunks(&stcb->asoc, strm, chk); |
| 368 | } |
| 369 | chk = nchk; |
| 370 | } |
| 371 | } |
| 372 | } |
| 373 | sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, NULL); |
| 374 | SCTP_TCB_UNLOCK(stcb); |
| 375 | } |
| 376 | |
| 377 | |
| 378 | void |
| 379 | sctp_notify(struct sctp_inpcb *inp, |
| 380 | int error, |
| 381 | struct sctphdr *sh, |
| 382 | struct sockaddr *to, |
| 383 | struct sctp_tcb *stcb, |
| 384 | struct sctp_nets *net) |
| 385 | { |
| 386 | /* protection */ |
| 387 | if ((inp == NULL) || (stcb == NULL) || (net == NULL) || |
| 388 | (sh == NULL) || (to == NULL)) { |
| 389 | #ifdef SCTP_DEBUG |
| 390 | if (sctp_debug_on & SCTP_DEBUG_USRREQ1) { |
| 391 | kprintf("sctp-notify, bad call\n"); |
| 392 | } |
| 393 | #endif /* SCTP_DEBUG */ |
| 394 | return; |
| 395 | } |
| 396 | /* First job is to verify the vtag matches what I would send */ |
| 397 | if (ntohl(sh->v_tag) != (stcb->asoc.peer_vtag)) { |
| 398 | return; |
| 399 | } |
| 400 | |
| 401 | /* FIX ME FIX ME PROTOPT i.e. no SCTP should ALWAYS be an ABORT */ |
| 402 | |
| 403 | if ((error == EHOSTUNREACH) || /* Host is not reachable */ |
| 404 | (error == EHOSTDOWN) || /* Host is down */ |
| 405 | (error == ECONNREFUSED) || /* Host refused the connection, (not an abort?) */ |
| 406 | (error == ENOPROTOOPT) /* SCTP is not present on host */ |
| 407 | ) { |
| 408 | /* |
| 409 | * Hmm reachablity problems we must examine closely. |
| 410 | * If its not reachable, we may have lost a network. |
| 411 | * Or if there is NO protocol at the other end named SCTP. |
| 412 | * well we consider it a OOTB abort. |
| 413 | */ |
| 414 | if ((error == EHOSTUNREACH) || (error == EHOSTDOWN)) { |
| 415 | if (net->dest_state & SCTP_ADDR_REACHABLE) { |
| 416 | /* Ok that destination is NOT reachable */ |
| 417 | net->dest_state &= ~SCTP_ADDR_REACHABLE; |
| 418 | net->dest_state |= SCTP_ADDR_NOT_REACHABLE; |
| 419 | net->error_count = net->failure_threshold + 1; |
| 420 | sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, |
| 421 | stcb, SCTP_FAILED_THRESHOLD, |
| 422 | (void *)net); |
| 423 | } |
| 424 | if (stcb) |
| 425 | SCTP_TCB_UNLOCK(stcb); |
| 426 | } else { |
| 427 | /* |
| 428 | * Here the peer is either playing tricks on us, |
| 429 | * including an address that belongs to someone who |
| 430 | * does not support SCTP OR was a userland |
| 431 | * implementation that shutdown and now is dead. In |
| 432 | * either case treat it like a OOTB abort with no TCB |
| 433 | */ |
| 434 | sctp_abort_notification(stcb, SCTP_PEER_FAULTY); |
| 435 | sctp_free_assoc(inp, stcb); |
| 436 | /* no need to unlock here, since the TCB is gone */ |
| 437 | } |
| 438 | } else { |
| 439 | /* Send all others to the app */ |
| 440 | if (inp->sctp_socket) { |
| 441 | SOCK_LOCK(inp->sctp_socket); |
| 442 | inp->sctp_socket->so_error = error; |
| 443 | sctp_sowwakeup(inp, inp->sctp_socket); |
| 444 | SOCK_UNLOCK(inp->sctp_socket); |
| 445 | } |
| 446 | if (stcb) |
| 447 | SCTP_TCB_UNLOCK(stcb); |
| 448 | } |
| 449 | } |
| 450 | |
| 451 | #if defined(__FreeBSD__) || defined(__APPLE__) || defined(__DragonFly__) |
| 452 | void |
| 453 | #else |
| 454 | void * |
| 455 | #endif |
| 456 | sctp_ctlinput(int cmd, struct sockaddr *sa, void *vip) |
| 457 | { |
| 458 | struct ip *ip = vip; |
| 459 | struct sctphdr *sh; |
| 460 | |
| 461 | |
| 462 | if (sa->sa_family != AF_INET || |
| 463 | ((struct sockaddr_in *)sa)->sin_addr.s_addr == INADDR_ANY) { |
| 464 | #if defined(__FreeBSD__) || defined(__APPLE__) || defined(__DragonFly__) |
| 465 | return; |
| 466 | #else |
| 467 | return (NULL); |
| 468 | #endif |
| 469 | } |
| 470 | |
| 471 | if (PRC_IS_REDIRECT(cmd)) { |
| 472 | ip = 0; |
| 473 | } else if ((unsigned)cmd >= PRC_NCMDS || inetctlerrmap[cmd] == 0) { |
| 474 | #if defined(__FreeBSD__) || defined(__APPLE__) || defined(__DragonFly__) |
| 475 | return; |
| 476 | #else |
| 477 | return (NULL); |
| 478 | #endif |
| 479 | } |
| 480 | if (ip) { |
| 481 | struct sctp_inpcb *inp; |
| 482 | struct sctp_tcb *stcb; |
| 483 | struct sctp_nets *net; |
| 484 | struct sockaddr_in to, from; |
| 485 | |
| 486 | sh = (struct sctphdr *)((caddr_t)ip + (ip->ip_hl << 2)); |
| 487 | bzero(&to, sizeof(to)); |
| 488 | bzero(&from, sizeof(from)); |
| 489 | from.sin_family = to.sin_family = AF_INET; |
| 490 | from.sin_len = to.sin_len = sizeof(to); |
| 491 | from.sin_port = sh->src_port; |
| 492 | from.sin_addr = ip->ip_src; |
| 493 | to.sin_port = sh->dest_port; |
| 494 | to.sin_addr = ip->ip_dst; |
| 495 | |
| 496 | /* |
| 497 | * 'to' holds the dest of the packet that failed to be sent. |
| 498 | * 'from' holds our local endpoint address. |
| 499 | * Thus we reverse the to and the from in the lookup. |
| 500 | */ |
| 501 | crit_enter(); |
| 502 | stcb = sctp_findassociation_addr_sa((struct sockaddr *)&from, |
| 503 | (struct sockaddr *)&to, |
| 504 | &inp, &net, 1); |
| 505 | if (stcb != NULL && inp && (inp->sctp_socket != NULL)) { |
| 506 | if (cmd != PRC_MSGSIZE) { |
| 507 | int cm; |
| 508 | if (cmd == PRC_HOSTDEAD) { |
| 509 | cm = EHOSTUNREACH; |
| 510 | } else { |
| 511 | cm = inetctlerrmap[cmd]; |
| 512 | } |
| 513 | sctp_notify(inp, cm, sh, |
| 514 | (struct sockaddr *)&to, stcb, |
| 515 | net); |
| 516 | } else { |
| 517 | /* handle possible ICMP size messages */ |
| 518 | sctp_notify_mbuf(inp, stcb, net, ip, sh); |
| 519 | } |
| 520 | } else { |
| 521 | #if (defined(__FreeBSD__) && __FreeBSD_version < 500000) || defined(__DragonFly__) |
| 522 | /* XXX must be fixed for 5.x and higher, leave for 4.x */ |
| 523 | if (PRC_IS_REDIRECT(cmd) && inp) { |
| 524 | in_rtchange((struct inpcb *)inp, |
| 525 | inetctlerrmap[cmd]); |
| 526 | } |
| 527 | #endif |
| 528 | if ((stcb == NULL) && (inp != NULL)) { |
| 529 | /* reduce ref-count */ |
| 530 | SCTP_INP_WLOCK(inp); |
| 531 | SCTP_INP_DECR_REF(inp); |
| 532 | SCTP_INP_WUNLOCK(inp); |
| 533 | } |
| 534 | |
| 535 | } |
| 536 | crit_exit(); |
| 537 | } |
| 538 | #if defined(__FreeBSD__) || defined(__APPLE__) || defined(__DragonFly__) |
| 539 | return; |
| 540 | #else |
| 541 | return (NULL); |
| 542 | #endif |
| 543 | } |
| 544 | |
| 545 | #if defined(__FreeBSD__) || defined(__DragonFly__) |
| 546 | static int |
| 547 | sctp_getcred(SYSCTL_HANDLER_ARGS) |
| 548 | { |
| 549 | struct sockaddr_in addrs[2]; |
| 550 | struct sctp_inpcb *inp; |
| 551 | struct sctp_nets *net; |
| 552 | struct sctp_tcb *stcb; |
| 553 | int error; |
| 554 | |
| 555 | #if __FreeBSD_version >= 500000 || defined(__DragonFly__) |
| 556 | error = priv_check(req->td, PRIV_ROOT); |
| 557 | #else |
| 558 | error = suser(req->p); |
| 559 | #endif |
| 560 | if (error) |
| 561 | return (error); |
| 562 | error = SYSCTL_IN(req, addrs, sizeof(addrs)); |
| 563 | if (error) |
| 564 | return (error); |
| 565 | |
| 566 | crit_enter(); |
| 567 | stcb = sctp_findassociation_addr_sa(sintosa(&addrs[0]), |
| 568 | sintosa(&addrs[1]), |
| 569 | &inp, &net, 1); |
| 570 | if (stcb == NULL || inp == NULL || inp->sctp_socket == NULL) { |
| 571 | if ((inp != NULL) && (stcb == NULL)) { |
| 572 | /* reduce ref-count */ |
| 573 | SCTP_INP_WLOCK(inp); |
| 574 | SCTP_INP_DECR_REF(inp); |
| 575 | SCTP_INP_WUNLOCK(inp); |
| 576 | } |
| 577 | error = ENOENT; |
| 578 | goto out; |
| 579 | } |
| 580 | error = SYSCTL_OUT(req, inp->sctp_socket->so_cred, sizeof(struct ucred)); |
| 581 | SCTP_TCB_UNLOCK(stcb); |
| 582 | out: |
| 583 | crit_exit(); |
| 584 | return (error); |
| 585 | } |
| 586 | |
| 587 | SYSCTL_PROC(_net_inet_sctp, OID_AUTO, getcred, CTLTYPE_OPAQUE|CTLFLAG_RW, |
| 588 | 0, 0, sctp_getcred, "S,ucred", "Get the ucred of a SCTP connection"); |
| 589 | #endif /* #if defined(__FreeBSD__) || defined(__DragonFly__) */ |
| 590 | |
| 591 | /* |
| 592 | * sysctl definitions |
| 593 | */ |
| 594 | #if defined(__FreeBSD__) || defined (__APPLE__) || defined(__DragonFly__) |
| 595 | |
| 596 | SYSCTL_DECL(_net_inet); |
| 597 | |
| 598 | SYSCTL_NODE(_net_inet, OID_AUTO, sctp, CTLFLAG_RD, 0, |
| 599 | "sctp values"); |
| 600 | |
| 601 | SYSCTL_INT(_net_inet_sctp, OID_AUTO, maxdgram, CTLFLAG_RW, |
| 602 | &sctp_sendspace, 0, "Maximum outgoing SCTP buffer size"); |
| 603 | |
| 604 | SYSCTL_INT(_net_inet_sctp, OID_AUTO, recvspace, CTLFLAG_RW, |
| 605 | &sctp_recvspace, 0, "Maximum incoming SCTP buffer size"); |
| 606 | |
| 607 | SYSCTL_INT(_net_inet_sctp, OID_AUTO, auto_asconf, CTLFLAG_RW, |
| 608 | &sctp_auto_asconf, 0, "Enable SCTP Auto-ASCONF"); |
| 609 | |
| 610 | SYSCTL_INT(_net_inet_sctp, OID_AUTO, ecn_enable, CTLFLAG_RW, |
| 611 | &sctp_ecn, 0, "Enable SCTP ECN"); |
| 612 | |
| 613 | SYSCTL_INT(_net_inet_sctp, OID_AUTO, ecn_nonce, CTLFLAG_RW, |
| 614 | &sctp_ecn_nonce, 0, "Enable SCTP ECN Nonce"); |
| 615 | |
| 616 | SYSCTL_INT(_net_inet_sctp, OID_AUTO, strict_sacks, CTLFLAG_RW, |
| 617 | &sctp_strict_sacks, 0, "Enable SCTP Strict SACK checking"); |
| 618 | |
| 619 | SYSCTL_INT(_net_inet_sctp, OID_AUTO, loopback_nocsum, CTLFLAG_RW, |
| 620 | &sctp_no_csum_on_loopback, 0, |
| 621 | "Enable NO Csum on packets sent on loopback"); |
| 622 | |
| 623 | SYSCTL_INT(_net_inet_sctp, OID_AUTO, strict_init, CTLFLAG_RW, |
| 624 | &sctp_strict_init, 0, |
| 625 | "Enable strict INIT/INIT-ACK singleton enforcement"); |
| 626 | |
| 627 | SYSCTL_INT(_net_inet_sctp, OID_AUTO, peer_chkoh, CTLFLAG_RW, |
| 628 | &sctp_peer_chunk_oh, 0, |
| 629 | "Amount to debit peers rwnd per chunk sent"); |
| 630 | |
| 631 | SYSCTL_INT(_net_inet_sctp, OID_AUTO, maxburst, CTLFLAG_RW, |
| 632 | &sctp_max_burst_default, 0, |
| 633 | "Default max burst for sctp endpoints"); |
| 634 | |
| 635 | SYSCTL_INT(_net_inet_sctp, OID_AUTO, maxchunks, CTLFLAG_RW, |
| 636 | &sctp_max_chunks_on_queue, 0, |
| 637 | "Default max chunks on queue per asoc"); |
| 638 | |
| 639 | SYSCTL_UINT(_net_inet_sctp, OID_AUTO, delayed_sack_time, CTLFLAG_RW, |
| 640 | &sctp_delayed_sack_time_default, 0, |
| 641 | "Default delayed SACK timer in msec"); |
| 642 | |
| 643 | SYSCTL_UINT(_net_inet_sctp, OID_AUTO, heartbeat_interval, CTLFLAG_RW, |
| 644 | &sctp_heartbeat_interval_default, 0, |
| 645 | "Default heartbeat interval in msec"); |
| 646 | |
| 647 | SYSCTL_UINT(_net_inet_sctp, OID_AUTO, pmtu_raise_time, CTLFLAG_RW, |
| 648 | &sctp_pmtu_raise_time_default, 0, |
| 649 | "Default PMTU raise timer in sec"); |
| 650 | |
| 651 | SYSCTL_UINT(_net_inet_sctp, OID_AUTO, shutdown_guard_time, CTLFLAG_RW, |
| 652 | &sctp_shutdown_guard_time_default, 0, |
| 653 | "Default shutdown guard timer in sec"); |
| 654 | |
| 655 | SYSCTL_UINT(_net_inet_sctp, OID_AUTO, secret_lifetime, CTLFLAG_RW, |
| 656 | &sctp_secret_lifetime_default, 0, |
| 657 | "Default secret lifetime in sec"); |
| 658 | |
| 659 | SYSCTL_UINT(_net_inet_sctp, OID_AUTO, rto_max, CTLFLAG_RW, |
| 660 | &sctp_rto_max_default, 0, |
| 661 | "Default maximum retransmission timeout in msec"); |
| 662 | |
| 663 | SYSCTL_UINT(_net_inet_sctp, OID_AUTO, rto_min, CTLFLAG_RW, |
| 664 | &sctp_rto_min_default, 0, |
| 665 | "Default minimum retransmission timeout in msec"); |
| 666 | |
| 667 | SYSCTL_UINT(_net_inet_sctp, OID_AUTO, rto_initial, CTLFLAG_RW, |
| 668 | &sctp_rto_initial_default, 0, |
| 669 | "Default initial retransmission timeout in msec"); |
| 670 | |
| 671 | SYSCTL_UINT(_net_inet_sctp, OID_AUTO, init_rto_max, CTLFLAG_RW, |
| 672 | &sctp_init_rto_max_default, 0, |
| 673 | "Default maximum retransmission timeout during association setup in msec"); |
| 674 | |
| 675 | SYSCTL_UINT(_net_inet_sctp, OID_AUTO, valid_cookie_life, CTLFLAG_RW, |
| 676 | &sctp_valid_cookie_life_default, 0, |
| 677 | "Default cookie lifetime in sec"); |
| 678 | |
| 679 | SYSCTL_UINT(_net_inet_sctp, OID_AUTO, init_rtx_max, CTLFLAG_RW, |
| 680 | &sctp_init_rtx_max_default, 0, |
| 681 | "Default maximum number of retransmission for INIT chunks"); |
| 682 | |
| 683 | SYSCTL_UINT(_net_inet_sctp, OID_AUTO, assoc_rtx_max, CTLFLAG_RW, |
| 684 | &sctp_assoc_rtx_max_default, 0, |
| 685 | "Default maximum number of retransmissions per association"); |
| 686 | |
| 687 | SYSCTL_UINT(_net_inet_sctp, OID_AUTO, path_rtx_max, CTLFLAG_RW, |
| 688 | &sctp_path_rtx_max_default, 0, |
| 689 | "Default maximum of retransmissions per path"); |
| 690 | |
| 691 | SYSCTL_UINT(_net_inet_sctp, OID_AUTO, nr_outgoing_streams, CTLFLAG_RW, |
| 692 | &sctp_nr_outgoing_streams_default, 0, |
| 693 | "Default number of outgoing streams"); |
| 694 | |
| 695 | #ifdef SCTP_DEBUG |
| 696 | SYSCTL_INT(_net_inet_sctp, OID_AUTO, debug, CTLFLAG_RW, |
| 697 | &sctp_debug_on, 0, "Configure debug output"); |
| 698 | #endif /* SCTP_DEBUG */ |
| 699 | #endif |
| 700 | |
| 701 | /* |
| 702 | * NOTE: (so) is referenced from soabort*() and netmsg_pru_abort() |
| 703 | * will sofree() it when we return. |
| 704 | */ |
| 705 | static int |
| 706 | sctp_abort(struct socket *so) |
| 707 | { |
| 708 | struct sctp_inpcb *inp; |
| 709 | int error; |
| 710 | |
| 711 | inp = (struct sctp_inpcb *)so->so_pcb; |
| 712 | if (inp) { |
| 713 | sctp_inpcb_free(inp, 1); |
| 714 | error = 0; |
| 715 | } else { |
| 716 | error = EINVAL; |
| 717 | } |
| 718 | return error; |
| 719 | } |
| 720 | |
| 721 | static int |
| 722 | #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 |
| 723 | sctp_attach(struct socket *so, int proto, struct thread *p) |
| 724 | #elif defined(__DragonFly__) |
| 725 | sctp_attach(struct socket *so, int proto, struct pru_attach_info *ai) |
| 726 | #else |
| 727 | sctp_attach(struct socket *so, int proto, struct proc *p) |
| 728 | #endif |
| 729 | { |
| 730 | struct sctp_inpcb *inp; |
| 731 | struct inpcb *ip_inp; |
| 732 | int error; |
| 733 | |
| 734 | crit_enter(); |
| 735 | inp = (struct sctp_inpcb *)so->so_pcb; |
| 736 | if (inp != 0) { |
| 737 | crit_exit(); |
| 738 | return EINVAL; |
| 739 | } |
| 740 | error = soreserve(so, sctp_sendspace, sctp_recvspace, NULL); |
| 741 | if (error) { |
| 742 | crit_exit(); |
| 743 | return error; |
| 744 | } |
| 745 | error = sctp_inpcb_alloc(so); |
| 746 | if (error) { |
| 747 | crit_exit(); |
| 748 | return error; |
| 749 | } |
| 750 | inp = (struct sctp_inpcb *)so->so_pcb; |
| 751 | SCTP_INP_WLOCK(inp); |
| 752 | |
| 753 | inp->sctp_flags &= ~SCTP_PCB_FLAGS_BOUND_V6; /* I'm not v6! */ |
| 754 | ip_inp = &inp->ip_inp.inp; |
| 755 | #if defined(__FreeBSD__) || defined(__APPLE__) || defined(__DragonFly__) |
| 756 | ip_inp->inp_vflag |= INP_IPV4; |
| 757 | ip_inp->inp_ip_ttl = ip_defttl; |
| 758 | #else |
| 759 | inp->inp_vflag |= INP_IPV4; |
| 760 | inp->inp_ip_ttl = ip_defttl; |
| 761 | #endif |
| 762 | |
| 763 | #ifdef IPSEC |
| 764 | #if !(defined(__OpenBSD__) || defined(__APPLE__)) |
| 765 | error = ipsec_init_policy(so, &ip_inp->inp_sp); |
| 766 | if (error != 0) { |
| 767 | sctp_inpcb_free(inp, 1); |
| 768 | return error; |
| 769 | } |
| 770 | #endif |
| 771 | #endif /*IPSEC*/ |
| 772 | SCTP_INP_WUNLOCK(inp); |
| 773 | #if defined(__NetBSD__) |
| 774 | so->so_send = sctp_sosend; |
| 775 | #endif |
| 776 | crit_exit(); |
| 777 | return 0; |
| 778 | } |
| 779 | |
| 780 | static int |
| 781 | #if (defined(__FreeBSD__) && __FreeBSD_version >= 500000) || defined(__DragonFly__) |
| 782 | sctp_bind(struct socket *so, struct sockaddr *addr, struct thread *p) |
| 783 | { |
| 784 | #elif defined(__FreeBSD__) || defined(__APPLE__) |
| 785 | sctp_bind(struct socket *so, struct sockaddr *addr, struct proc *p) |
| 786 | { |
| 787 | #else |
| 788 | sctp_bind(struct socket *so, struct mbuf *nam, struct proc *p) |
| 789 | { |
| 790 | struct sockaddr *addr = nam ? mtod(nam, struct sockaddr *) : NULL; |
| 791 | #endif |
| 792 | struct sctp_inpcb *inp; |
| 793 | int error; |
| 794 | |
| 795 | #ifdef INET6 |
| 796 | if (addr && addr->sa_family != AF_INET) |
| 797 | /* must be a v4 address! */ |
| 798 | return EINVAL; |
| 799 | #endif /* INET6 */ |
| 800 | |
| 801 | inp = (struct sctp_inpcb *)so->so_pcb; |
| 802 | if (inp == 0) |
| 803 | return EINVAL; |
| 804 | |
| 805 | crit_enter(); |
| 806 | error = sctp_inpcb_bind(so, addr, p); |
| 807 | crit_exit(); |
| 808 | return error; |
| 809 | } |
| 810 | |
| 811 | |
| 812 | static int |
| 813 | sctp_detach(struct socket *so) |
| 814 | { |
| 815 | struct sctp_inpcb *inp; |
| 816 | |
| 817 | inp = (struct sctp_inpcb *)so->so_pcb; |
| 818 | if (inp == 0) |
| 819 | return EINVAL; |
| 820 | crit_enter(); |
| 821 | if (((so->so_options & SO_LINGER) && (so->so_linger == 0)) || |
| 822 | (so->so_rcv.ssb_cc > 0)) { |
| 823 | sctp_inpcb_free(inp, 1); |
| 824 | } else { |
| 825 | sctp_inpcb_free(inp, 0); |
| 826 | } |
| 827 | crit_exit(); |
| 828 | return 0; |
| 829 | } |
| 830 | |
| 831 | int |
| 832 | #if (defined(__FreeBSD__) && __FreeBSD_version >= 500000) || defined(__DragonFly__) |
| 833 | sctp_send(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr, |
| 834 | struct mbuf *control, struct thread *p); |
| 835 | #else |
| 836 | sctp_send(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr, |
| 837 | struct mbuf *control, struct proc *p); |
| 838 | #endif |
| 839 | |
| 840 | int |
| 841 | #if (defined(__FreeBSD__) && __FreeBSD_version >= 500000) || defined(__DragonFly__) |
| 842 | sctp_send(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr, |
| 843 | struct mbuf *control, struct thread *p) |
| 844 | { |
| 845 | #else |
| 846 | sctp_send(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr, |
| 847 | struct mbuf *control, struct proc *p) |
| 848 | { |
| 849 | #endif |
| 850 | struct sctp_inpcb *inp; |
| 851 | int error; |
| 852 | inp = (struct sctp_inpcb *)so->so_pcb; |
| 853 | if (inp == 0) { |
| 854 | if (control) { |
| 855 | sctp_m_freem(control); |
| 856 | control = NULL; |
| 857 | } |
| 858 | sctp_m_freem(m); |
| 859 | return EINVAL; |
| 860 | } |
| 861 | /* Got to have an to address if we are NOT a connected socket */ |
| 862 | if ((addr == NULL) && |
| 863 | ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) || |
| 864 | (inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE)) |
| 865 | ) { |
| 866 | goto connected_type; |
| 867 | } else if (addr == NULL) { |
| 868 | error = EDESTADDRREQ; |
| 869 | sctp_m_freem(m); |
| 870 | if (control) { |
| 871 | sctp_m_freem(control); |
| 872 | control = NULL; |
| 873 | } |
| 874 | return (error); |
| 875 | } |
| 876 | #ifdef INET6 |
| 877 | if (addr->sa_family != AF_INET) { |
| 878 | /* must be a v4 address! */ |
| 879 | sctp_m_freem(m); |
| 880 | if (control) { |
| 881 | sctp_m_freem(control); |
| 882 | control = NULL; |
| 883 | } |
| 884 | error = EDESTADDRREQ; |
| 885 | return EINVAL; |
| 886 | } |
| 887 | #endif /* INET6 */ |
| 888 | connected_type: |
| 889 | /* now what about control */ |
| 890 | if (control) { |
| 891 | if (inp->control) { |
| 892 | kprintf("huh? control set?\n"); |
| 893 | sctp_m_freem(inp->control); |
| 894 | inp->control = NULL; |
| 895 | } |
| 896 | inp->control = control; |
| 897 | } |
| 898 | /* add it in possibly */ |
| 899 | if ((inp->pkt) && (inp->pkt->m_flags & M_PKTHDR)) { |
| 900 | struct mbuf *x; |
| 901 | int c_len; |
| 902 | |
| 903 | c_len = 0; |
| 904 | /* How big is it */ |
| 905 | for (x=m;x;x = x->m_next) { |
| 906 | c_len += x->m_len; |
| 907 | } |
| 908 | inp->pkt->m_pkthdr.len += c_len; |
| 909 | } |
| 910 | /* Place the data */ |
| 911 | if (inp->pkt) { |
| 912 | inp->pkt_last->m_next = m; |
| 913 | inp->pkt_last = m; |
| 914 | } else { |
| 915 | inp->pkt_last = inp->pkt = m; |
| 916 | } |
| 917 | if ( |
| 918 | #if defined (__FreeBSD__) || defined(__APPLE__) || defined(__DragonFly__) |
| 919 | /* FreeBSD uses a flag passed */ |
| 920 | ((flags & PRUS_MORETOCOME) == 0) |
| 921 | #elif defined( __NetBSD__) |
| 922 | /* NetBSD uses the so_state field */ |
| 923 | ((so->so_state & SS_MORETOCOME) == 0) |
| 924 | #else |
| 925 | 1 /* Open BSD does not have any "more to come" indication */ |
| 926 | #endif |
| 927 | ) { |
| 928 | /* |
| 929 | * note with the current version this code will only be used |
| 930 | * by OpenBSD-- NetBSD, FreeBSD, and MacOS have methods for |
| 931 | * re-defining sosend to use the sctp_sosend. One can |
| 932 | * optionally switch back to this code (by changing back the |
| 933 | * definitions) but this is not advisable. |
| 934 | */ |
| 935 | int ret; |
| 936 | ret = sctp_output(inp, inp->pkt, addr, inp->control, p, flags); |
| 937 | inp->pkt = NULL; |
| 938 | inp->control = NULL; |
| 939 | return (ret); |
| 940 | } else { |
| 941 | return (0); |
| 942 | } |
| 943 | } |
| 944 | |
| 945 | static int |
| 946 | sctp_disconnect(struct socket *so) |
| 947 | { |
| 948 | struct sctp_inpcb *inp; |
| 949 | |
| 950 | crit_enter(); |
| 951 | inp = (struct sctp_inpcb *)so->so_pcb; |
| 952 | if (inp == NULL) { |
| 953 | crit_exit(); |
| 954 | return (ENOTCONN); |
| 955 | } |
| 956 | SCTP_INP_RLOCK(inp); |
| 957 | if (inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) { |
| 958 | if (LIST_EMPTY(&inp->sctp_asoc_list)) { |
| 959 | /* No connection */ |
| 960 | crit_exit(); |
| 961 | SCTP_INP_RUNLOCK(inp); |
| 962 | return (0); |
| 963 | } else { |
| 964 | int some_on_streamwheel = 0; |
| 965 | struct sctp_association *asoc; |
| 966 | struct sctp_tcb *stcb; |
| 967 | |
| 968 | stcb = LIST_FIRST(&inp->sctp_asoc_list); |
| 969 | if (stcb == NULL) { |
| 970 | crit_exit(); |
| 971 | SCTP_INP_RUNLOCK(inp); |
| 972 | return (EINVAL); |
| 973 | } |
| 974 | asoc = &stcb->asoc; |
| 975 | SCTP_TCB_LOCK(stcb); |
| 976 | if (((so->so_options & SO_LINGER) && |
| 977 | (so->so_linger == 0)) || |
| 978 | (so->so_rcv.ssb_cc > 0)) { |
| 979 | if (SCTP_GET_STATE(asoc) != |
| 980 | SCTP_STATE_COOKIE_WAIT) { |
| 981 | /* Left with Data unread */ |
| 982 | struct mbuf *err; |
| 983 | err = NULL; |
| 984 | MGET(err, MB_DONTWAIT, MT_DATA); |
| 985 | if (err) { |
| 986 | /* Fill in the user initiated abort */ |
| 987 | struct sctp_paramhdr *ph; |
| 988 | ph = mtod(err, struct sctp_paramhdr *); |
| 989 | err->m_len = sizeof(struct sctp_paramhdr); |
| 990 | ph->param_type = htons(SCTP_CAUSE_USER_INITIATED_ABT); |
| 991 | ph->param_length = htons(err->m_len); |
| 992 | } |
| 993 | sctp_send_abort_tcb(stcb, err); |
| 994 | } |
| 995 | SCTP_INP_RUNLOCK(inp); |
| 996 | sctp_free_assoc(inp, stcb); |
| 997 | /* No unlock tcb assoc is gone */ |
| 998 | crit_exit(); |
| 999 | return (0); |
| 1000 | } |
| 1001 | if (!TAILQ_EMPTY(&asoc->out_wheel)) { |
| 1002 | /* Check to see if some data queued */ |
| 1003 | struct sctp_stream_out *outs; |
| 1004 | TAILQ_FOREACH(outs, &asoc->out_wheel, |
| 1005 | next_spoke) { |
| 1006 | if (!TAILQ_EMPTY(&outs->outqueue)) { |
| 1007 | some_on_streamwheel = 1; |
| 1008 | break; |
| 1009 | } |
| 1010 | } |
| 1011 | } |
| 1012 | |
| 1013 | if (TAILQ_EMPTY(&asoc->send_queue) && |
| 1014 | TAILQ_EMPTY(&asoc->sent_queue) && |
| 1015 | (some_on_streamwheel == 0)) { |
| 1016 | /* there is nothing queued to send, so done */ |
| 1017 | if ((SCTP_GET_STATE(asoc) != |
| 1018 | SCTP_STATE_SHUTDOWN_SENT) && |
| 1019 | (SCTP_GET_STATE(asoc) != |
| 1020 | SCTP_STATE_SHUTDOWN_ACK_SENT)) { |
| 1021 | /* only send SHUTDOWN 1st time thru */ |
| 1022 | #ifdef SCTP_DEBUG |
| 1023 | if (sctp_debug_on & SCTP_DEBUG_OUTPUT4) { |
| 1024 | kprintf("%s:%d sends a shutdown\n", |
| 1025 | __FILE__, |
| 1026 | __LINE__ |
| 1027 | ); |
| 1028 | } |
| 1029 | #endif |
| 1030 | sctp_send_shutdown(stcb, |
| 1031 | stcb->asoc.primary_destination); |
| 1032 | sctp_chunk_output(stcb->sctp_ep, stcb, 1); |
| 1033 | asoc->state = SCTP_STATE_SHUTDOWN_SENT; |
| 1034 | sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN, |
| 1035 | stcb->sctp_ep, stcb, |
| 1036 | asoc->primary_destination); |
| 1037 | sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, |
| 1038 | stcb->sctp_ep, stcb, |
| 1039 | asoc->primary_destination); |
| 1040 | } |
| 1041 | } else { |
| 1042 | /* |
| 1043 | * we still got (or just got) data to send, |
| 1044 | * so set SHUTDOWN_PENDING |
| 1045 | */ |
| 1046 | /* |
| 1047 | * XXX sockets draft says that MSG_EOF should |
| 1048 | * be sent with no data. |
| 1049 | * currently, we will allow user data to be |
| 1050 | * sent first and move to SHUTDOWN-PENDING |
| 1051 | */ |
| 1052 | asoc->state |= SCTP_STATE_SHUTDOWN_PENDING; |
| 1053 | } |
| 1054 | SCTP_TCB_UNLOCK(stcb); |
| 1055 | SCTP_INP_RUNLOCK(inp); |
| 1056 | crit_exit(); |
| 1057 | return (0); |
| 1058 | } |
| 1059 | /* not reached */ |
| 1060 | } else { |
| 1061 | /* UDP model does not support this */ |
| 1062 | SCTP_INP_RUNLOCK(inp); |
| 1063 | crit_exit(); |
| 1064 | return EOPNOTSUPP; |
| 1065 | } |
| 1066 | } |
| 1067 | |
| 1068 | int |
| 1069 | sctp_shutdown(struct socket *so) |
| 1070 | { |
| 1071 | struct sctp_inpcb *inp; |
| 1072 | |
| 1073 | crit_enter(); |
| 1074 | inp = (struct sctp_inpcb *)so->so_pcb; |
| 1075 | if (inp == 0) { |
| 1076 | crit_exit(); |
| 1077 | return EINVAL; |
| 1078 | } |
| 1079 | SCTP_INP_RLOCK(inp); |
| 1080 | /* For UDP model this is a invalid call */ |
| 1081 | if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) { |
| 1082 | /* Restore the flags that the soshutdown took away. */ |
| 1083 | #if defined(__FreeBSD__) && __FreeBSD_version >= 502115 |
| 1084 | so->so_rcv.sb_state &= ~SBS_CANTRCVMORE; |
| 1085 | #else |
| 1086 | soclrstate(so, SS_CANTRCVMORE); |
| 1087 | #endif |
| 1088 | /* This proc will wakeup for read and do nothing (I hope) */ |
| 1089 | crit_exit(); |
| 1090 | SCTP_INP_RUNLOCK(inp); |
| 1091 | return (EOPNOTSUPP); |
| 1092 | } |
| 1093 | /* |
| 1094 | * Ok if we reach here its the TCP model and it is either a SHUT_WR |
| 1095 | * or SHUT_RDWR. This means we put the shutdown flag against it. |
| 1096 | */ |
| 1097 | { |
| 1098 | int some_on_streamwheel = 0; |
| 1099 | struct sctp_tcb *stcb; |
| 1100 | struct sctp_association *asoc; |
| 1101 | socantsendmore(so); |
| 1102 | |
| 1103 | stcb = LIST_FIRST(&inp->sctp_asoc_list); |
| 1104 | if (stcb == NULL) { |
| 1105 | /* |
| 1106 | * Ok we hit the case that the shutdown call was made |
| 1107 | * after an abort or something. Nothing to do now. |
| 1108 | */ |
| 1109 | crit_exit(); |
| 1110 | return (0); |
| 1111 | } |
| 1112 | SCTP_TCB_LOCK(stcb); |
| 1113 | asoc = &stcb->asoc; |
| 1114 | |
| 1115 | if (!TAILQ_EMPTY(&asoc->out_wheel)) { |
| 1116 | /* Check to see if some data queued */ |
| 1117 | struct sctp_stream_out *outs; |
| 1118 | TAILQ_FOREACH(outs, &asoc->out_wheel, next_spoke) { |
| 1119 | if (!TAILQ_EMPTY(&outs->outqueue)) { |
| 1120 | some_on_streamwheel = 1; |
| 1121 | break; |
| 1122 | } |
| 1123 | } |
| 1124 | } |
| 1125 | if (TAILQ_EMPTY(&asoc->send_queue) && |
| 1126 | TAILQ_EMPTY(&asoc->sent_queue) && |
| 1127 | (some_on_streamwheel == 0)) { |
| 1128 | /* there is nothing queued to send, so I'm done... */ |
| 1129 | if (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) { |
| 1130 | /* only send SHUTDOWN the first time through */ |
| 1131 | #ifdef SCTP_DEBUG |
| 1132 | if (sctp_debug_on & SCTP_DEBUG_OUTPUT4) { |
| 1133 | kprintf("%s:%d sends a shutdown\n", |
| 1134 | __FILE__, |
| 1135 | __LINE__ |
| 1136 | ); |
| 1137 | } |
| 1138 | #endif |
| 1139 | sctp_send_shutdown(stcb, |
| 1140 | stcb->asoc.primary_destination); |
| 1141 | sctp_chunk_output(stcb->sctp_ep, stcb, 1); |
| 1142 | asoc->state = SCTP_STATE_SHUTDOWN_SENT; |
| 1143 | sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN, |
| 1144 | stcb->sctp_ep, stcb, |
| 1145 | asoc->primary_destination); |
| 1146 | sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, |
| 1147 | stcb->sctp_ep, stcb, |
| 1148 | asoc->primary_destination); |
| 1149 | } |
| 1150 | } else { |
| 1151 | /* |
| 1152 | * we still got (or just got) data to send, so |
| 1153 | * set SHUTDOWN_PENDING |
| 1154 | */ |
| 1155 | asoc->state |= SCTP_STATE_SHUTDOWN_PENDING; |
| 1156 | } |
| 1157 | SCTP_TCB_UNLOCK(stcb); |
| 1158 | } |
| 1159 | SCTP_INP_RUNLOCK(inp); |
| 1160 | crit_exit(); |
| 1161 | return 0; |
| 1162 | } |
| 1163 | |
| 1164 | /* |
| 1165 | * copies a "user" presentable address and removes embedded scope, etc. |
| 1166 | * returns 0 on success, 1 on error |
| 1167 | */ |
| 1168 | static uint32_t |
| 1169 | sctp_fill_user_address(struct sockaddr_storage *ss, struct sockaddr *sa) |
| 1170 | { |
| 1171 | struct sockaddr_in6 lsa6; |
| 1172 | sa = (struct sockaddr *)sctp_recover_scope((struct sockaddr_in6 *)sa, |
| 1173 | &lsa6); |
| 1174 | memcpy(ss, sa, sa->sa_len); |
| 1175 | return (0); |
| 1176 | } |
| 1177 | |
| 1178 | |
| 1179 | #if defined(__NetBSD__) || defined(__OpenBSD__) |
| 1180 | /* |
| 1181 | * On NetBSD and OpenBSD in6_sin_2_v4mapsin6() not used and not exported, |
| 1182 | * so we have to export it here. |
| 1183 | */ |
| 1184 | void in6_sin_2_v4mapsin6(struct sockaddr_in *sin, struct sockaddr_in6 *sin6); |
| 1185 | #endif |
| 1186 | |
| 1187 | static int |
| 1188 | sctp_fill_up_addresses(struct sctp_inpcb *inp, |
| 1189 | struct sctp_tcb *stcb, |
| 1190 | int limit, |
| 1191 | struct sockaddr_storage *sas) |
| 1192 | { |
| 1193 | struct ifnet *ifn; |
| 1194 | int loopback_scope, ipv4_local_scope, local_scope, site_scope, actual; |
| 1195 | int ipv4_addr_legal, ipv6_addr_legal; |
| 1196 | actual = 0; |
| 1197 | if (limit <= 0) |
| 1198 | return (actual); |
| 1199 | |
| 1200 | if (stcb) { |
| 1201 | /* Turn on all the appropriate scope */ |
| 1202 | loopback_scope = stcb->asoc.loopback_scope; |
| 1203 | ipv4_local_scope = stcb->asoc.ipv4_local_scope; |
| 1204 | local_scope = stcb->asoc.local_scope; |
| 1205 | site_scope = stcb->asoc.site_scope; |
| 1206 | } else { |
| 1207 | /* Turn on ALL scope, since we look at the EP */ |
| 1208 | loopback_scope = ipv4_local_scope = local_scope = |
| 1209 | site_scope = 1; |
| 1210 | } |
| 1211 | ipv4_addr_legal = ipv6_addr_legal = 0; |
| 1212 | if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { |
| 1213 | ipv6_addr_legal = 1; |
| 1214 | if ( |
| 1215 | #if defined(__OpenBSD__) |
| 1216 | (0) /* we always do dual bind */ |
| 1217 | #elif defined (__NetBSD__) |
| 1218 | (((struct in6pcb *)inp)->in6p_flags & IN6P_IPV6_V6ONLY) |
| 1219 | #else |
| 1220 | (((struct in6pcb *)inp)->inp_flags & IN6P_IPV6_V6ONLY) |
| 1221 | #endif |
| 1222 | == 0) { |
| 1223 | ipv4_addr_legal = 1; |
| 1224 | } |
| 1225 | } else { |
| 1226 | ipv4_addr_legal = 1; |
| 1227 | } |
| 1228 | |
| 1229 | if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) { |
| 1230 | TAILQ_FOREACH(ifn, &ifnet, if_list) { |
| 1231 | struct ifaddr_container *ifac; |
| 1232 | |
| 1233 | if ((loopback_scope == 0) && |
| 1234 | (ifn->if_type == IFT_LOOP)) { |
| 1235 | /* Skip loopback if loopback_scope not set */ |
| 1236 | continue; |
| 1237 | } |
| 1238 | TAILQ_FOREACH(ifac, &ifn->if_addrheads[mycpuid], |
| 1239 | ifa_link) { |
| 1240 | struct ifaddr *ifa = ifac->ifa; |
| 1241 | |
| 1242 | if (stcb) { |
| 1243 | /* |
| 1244 | * For the BOUND-ALL case, the list |
| 1245 | * associated with a TCB is Always |
| 1246 | * considered a reverse list.. i.e. |
| 1247 | * it lists addresses that are NOT |
| 1248 | * part of the association. If this |
| 1249 | * is one of those we must skip it. |
| 1250 | */ |
| 1251 | if (sctp_is_addr_restricted(stcb, |
| 1252 | ifa->ifa_addr)) { |
| 1253 | continue; |
| 1254 | } |
| 1255 | } |
| 1256 | if ((ifa->ifa_addr->sa_family == AF_INET) && |
| 1257 | (ipv4_addr_legal)) { |
| 1258 | struct sockaddr_in *sin; |
| 1259 | sin = (struct sockaddr_in *)ifa->ifa_addr; |
| 1260 | if (sin->sin_addr.s_addr == 0) { |
| 1261 | /* we skip unspecifed addresses */ |
| 1262 | continue; |
| 1263 | } |
| 1264 | if ((ipv4_local_scope == 0) && |
| 1265 | (IN4_ISPRIVATE_ADDRESS(&sin->sin_addr))) { |
| 1266 | continue; |
| 1267 | } |
| 1268 | if (inp->sctp_flags & SCTP_PCB_FLAGS_NEEDS_MAPPED_V4) { |
| 1269 | in6_sin_2_v4mapsin6(sin, (struct sockaddr_in6 *)sas); |
| 1270 | ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport; |
| 1271 | sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(struct sockaddr_in6)); |
| 1272 | actual += sizeof(sizeof(struct sockaddr_in6)); |
| 1273 | } else { |
| 1274 | memcpy(sas, sin, sizeof(*sin)); |
| 1275 | ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport; |
| 1276 | sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin)); |
| 1277 | actual += sizeof(*sin); |
| 1278 | } |
| 1279 | if (actual >= limit) { |
| 1280 | return (actual); |
| 1281 | } |
| 1282 | } else if ((ifa->ifa_addr->sa_family == AF_INET6) && |
| 1283 | (ipv6_addr_legal)) { |
| 1284 | struct sockaddr_in6 *sin6, lsa6; |
| 1285 | sin6 = (struct sockaddr_in6 *)ifa->ifa_addr; |
| 1286 | if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) { |
| 1287 | /* we skip unspecifed addresses */ |
| 1288 | continue; |
| 1289 | } |
| 1290 | if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) { |
| 1291 | if (local_scope == 0) |
| 1292 | continue; |
| 1293 | if (sin6->sin6_scope_id == 0) { |
| 1294 | lsa6 = *sin6; |
| 1295 | if (in6_recoverscope(&lsa6, |
| 1296 | &lsa6.sin6_addr, |
| 1297 | NULL)) |
| 1298 | /* bad link local address */ |
| 1299 | continue; |
| 1300 | sin6 = &lsa6; |
| 1301 | } |
| 1302 | } |
| 1303 | if ((site_scope == 0) && |
| 1304 | (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr))) { |
| 1305 | continue; |
| 1306 | } |
| 1307 | memcpy(sas, sin6, sizeof(*sin6)); |
| 1308 | ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport; |
| 1309 | sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin6)); |
| 1310 | actual += sizeof(*sin6); |
| 1311 | if (actual >= limit) { |
| 1312 | return (actual); |
| 1313 | } |
| 1314 | } |
| 1315 | } |
| 1316 | } |
| 1317 | } else { |
| 1318 | struct sctp_laddr *laddr; |
| 1319 | /* |
| 1320 | * If we have a TCB and we do NOT support ASCONF (it's |
| 1321 | * turned off or otherwise) then the list is always the |
| 1322 | * true list of addresses (the else case below). Otherwise |
| 1323 | * the list on the association is a list of addresses that |
| 1324 | * are NOT part of the association. |
| 1325 | */ |
| 1326 | if (inp->sctp_flags & SCTP_PCB_FLAGS_DO_ASCONF) { |
| 1327 | /* The list is a NEGATIVE list */ |
| 1328 | LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) { |
| 1329 | if (stcb) { |
| 1330 | if (sctp_is_addr_restricted(stcb, laddr->ifa->ifa_addr)) { |
| 1331 | continue; |
| 1332 | } |
| 1333 | } |
| 1334 | if (sctp_fill_user_address(sas, laddr->ifa->ifa_addr)) |
| 1335 | continue; |
| 1336 | |
| 1337 | ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport; |
| 1338 | sas = (struct sockaddr_storage *)((caddr_t)sas + |
| 1339 | laddr->ifa->ifa_addr->sa_len); |
| 1340 | actual += laddr->ifa->ifa_addr->sa_len; |
| 1341 | if (actual >= limit) { |
| 1342 | return (actual); |
| 1343 | } |
| 1344 | } |
| 1345 | } else { |
| 1346 | /* The list is a positive list if present */ |
| 1347 | if (stcb) { |
| 1348 | /* Must use the specific association list */ |
| 1349 | LIST_FOREACH(laddr, &stcb->asoc.sctp_local_addr_list, |
| 1350 | sctp_nxt_addr) { |
| 1351 | if (sctp_fill_user_address(sas, |
| 1352 | laddr->ifa->ifa_addr)) |
| 1353 | continue; |
| 1354 | ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport; |
| 1355 | sas = (struct sockaddr_storage *)((caddr_t)sas + |
| 1356 | laddr->ifa->ifa_addr->sa_len); |
| 1357 | actual += laddr->ifa->ifa_addr->sa_len; |
| 1358 | if (actual >= limit) { |
| 1359 | return (actual); |
| 1360 | } |
| 1361 | } |
| 1362 | } else { |
| 1363 | /* No endpoint so use the endpoints individual list */ |
| 1364 | LIST_FOREACH(laddr, &inp->sctp_addr_list, |
| 1365 | sctp_nxt_addr) { |
| 1366 | if (sctp_fill_user_address(sas, |
| 1367 | laddr->ifa->ifa_addr)) |
| 1368 | continue; |
| 1369 | ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport; |
| 1370 | sas = (struct sockaddr_storage *)((caddr_t)sas + |
| 1371 | laddr->ifa->ifa_addr->sa_len); |
| 1372 | actual += laddr->ifa->ifa_addr->sa_len; |
| 1373 | if (actual >= limit) { |
| 1374 | return (actual); |
| 1375 | } |
| 1376 | } |
| 1377 | } |
| 1378 | } |
| 1379 | } |
| 1380 | return (actual); |
| 1381 | } |
| 1382 | |
| 1383 | static int |
| 1384 | sctp_count_max_addresses(struct sctp_inpcb *inp) |
| 1385 | { |
| 1386 | int cnt = 0; |
| 1387 | /* |
| 1388 | * In both sub-set bound an bound_all cases we return the MAXIMUM |
| 1389 | * number of addresses that you COULD get. In reality the sub-set |
| 1390 | * bound may have an exclusion list for a given TCB OR in the |
| 1391 | * bound-all case a TCB may NOT include the loopback or other |
| 1392 | * addresses as well. |
| 1393 | */ |
| 1394 | if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) { |
| 1395 | struct ifnet *ifn; |
| 1396 | |
| 1397 | TAILQ_FOREACH(ifn, &ifnet, if_list) { |
| 1398 | struct ifaddr_container *ifac; |
| 1399 | |
| 1400 | TAILQ_FOREACH(ifac, &ifn->if_addrheads[mycpuid], ifa_link) { |
| 1401 | struct ifaddr *ifa = ifac->ifa; |
| 1402 | |
| 1403 | /* Count them if they are the right type */ |
| 1404 | if (ifa->ifa_addr->sa_family == AF_INET) { |
| 1405 | if (inp->sctp_flags & SCTP_PCB_FLAGS_NEEDS_MAPPED_V4) |
| 1406 | cnt += sizeof(struct sockaddr_in6); |
| 1407 | else |
| 1408 | cnt += sizeof(struct sockaddr_in); |
| 1409 | |
| 1410 | } else if (ifa->ifa_addr->sa_family == AF_INET6) |
| 1411 | cnt += sizeof(struct sockaddr_in6); |
| 1412 | } |
| 1413 | } |
| 1414 | } else { |
| 1415 | struct sctp_laddr *laddr; |
| 1416 | LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) { |
| 1417 | if (laddr->ifa->ifa_addr->sa_family == AF_INET) { |
| 1418 | if (inp->sctp_flags & SCTP_PCB_FLAGS_NEEDS_MAPPED_V4) |
| 1419 | cnt += sizeof(struct sockaddr_in6); |
| 1420 | else |
| 1421 | cnt += sizeof(struct sockaddr_in); |
| 1422 | |
| 1423 | } else if (laddr->ifa->ifa_addr->sa_family == AF_INET6) |
| 1424 | cnt += sizeof(struct sockaddr_in6); |
| 1425 | } |
| 1426 | } |
| 1427 | return (cnt); |
| 1428 | } |
| 1429 | |
| 1430 | static int |
| 1431 | sctp_do_connect_x(struct socket *so, |
| 1432 | struct sctp_inpcb *inp, |
| 1433 | struct mbuf *m, |
| 1434 | #if (defined(__FreeBSD__) && __FreeBSD_version >= 500000) || defined(__DragonFly__) |
| 1435 | struct thread *p, |
| 1436 | #else |
| 1437 | struct proc *p, |
| 1438 | #endif |
| 1439 | int delay |
| 1440 | ) |
| 1441 | { |
| 1442 | int error = 0; |
| 1443 | struct sctp_tcb *stcb = NULL; |
| 1444 | struct sockaddr *sa; |
| 1445 | int num_v6=0, num_v4=0, *totaddrp, totaddr, i, incr, at; |
| 1446 | #ifdef SCTP_DEBUG |
| 1447 | if (sctp_debug_on & SCTP_DEBUG_PCB1) { |
| 1448 | kprintf("Connectx called\n"); |
| 1449 | } |
| 1450 | #endif /* SCTP_DEBUG */ |
| 1451 | |
| 1452 | crit_enter(); |
| 1453 | if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) && |
| 1454 | (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) { |
| 1455 | /* We are already connected AND the TCP model */ |
| 1456 | crit_exit(); |
| 1457 | return (EADDRINUSE); |
| 1458 | } |
| 1459 | if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) { |
| 1460 | SCTP_INP_RLOCK(inp); |
| 1461 | stcb = LIST_FIRST(&inp->sctp_asoc_list); |
| 1462 | SCTP_INP_RUNLOCK(inp); |
| 1463 | } |
| 1464 | if (stcb) { |
| 1465 | crit_exit(); |
| 1466 | return (EALREADY); |
| 1467 | |
| 1468 | } |
| 1469 | SCTP_ASOC_CREATE_LOCK(inp); |
| 1470 | if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) || |
| 1471 | (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) { |
| 1472 | SCTP_ASOC_CREATE_UNLOCK(inp); |
| 1473 | crit_exit(); |
| 1474 | return (EFAULT); |
| 1475 | } |
| 1476 | |
| 1477 | totaddrp = mtod(m, int *); |
| 1478 | totaddr = *totaddrp; |
| 1479 | sa = (struct sockaddr *)(totaddrp + 1); |
| 1480 | at = incr = 0; |
| 1481 | /* account and validate addresses */ |
| 1482 | SCTP_INP_WLOCK(inp); |
| 1483 | SCTP_INP_INCR_REF(inp); |
| 1484 | SCTP_INP_WUNLOCK(inp); |
| 1485 | for (i = 0; i < totaddr; i++) { |
| 1486 | if (sa->sa_family == AF_INET) { |
| 1487 | num_v4++; |
| 1488 | incr = sizeof(struct sockaddr_in); |
| 1489 | } else if (sa->sa_family == AF_INET6) { |
| 1490 | struct sockaddr_in6 *sin6; |
| 1491 | sin6 = (struct sockaddr_in6 *)sa; |
| 1492 | if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) { |
| 1493 | /* Must be non-mapped for connectx */ |
| 1494 | SCTP_ASOC_CREATE_UNLOCK(inp); |
| 1495 | crit_exit(); |
| 1496 | return EINVAL; |
| 1497 | } |
| 1498 | num_v6++; |
| 1499 | incr = sizeof(struct sockaddr_in6); |
| 1500 | } else { |
| 1501 | totaddr = i; |
| 1502 | break; |
| 1503 | } |
| 1504 | stcb = sctp_findassociation_ep_addr(&inp, sa, NULL, NULL, NULL); |
| 1505 | if (stcb != NULL) { |
| 1506 | /* Already have or am bring up an association */ |
| 1507 | SCTP_ASOC_CREATE_UNLOCK(inp); |
| 1508 | SCTP_TCB_UNLOCK(stcb); |
| 1509 | crit_exit(); |
| 1510 | return (EALREADY); |
| 1511 | } |
| 1512 | if ((at + incr) > m->m_len) { |
| 1513 | totaddr = i; |
| 1514 | break; |
| 1515 | } |
| 1516 | sa = (struct sockaddr *)((caddr_t)sa + incr); |
| 1517 | } |
| 1518 | sa = (struct sockaddr *)(totaddrp + 1); |
| 1519 | SCTP_INP_WLOCK(inp); |
| 1520 | SCTP_INP_DECR_REF(inp); |
| 1521 | SCTP_INP_WUNLOCK(inp); |
| 1522 | #ifdef INET6 |
| 1523 | if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) && |
| 1524 | (num_v6 > 0)) { |
| 1525 | crit_exit(); |
| 1526 | SCTP_INP_WUNLOCK(inp); |
| 1527 | SCTP_ASOC_CREATE_UNLOCK(inp); |
| 1528 | return (EINVAL); |
| 1529 | } |
| 1530 | if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) && |
| 1531 | (num_v4 > 0)) { |
| 1532 | struct in6pcb *inp6; |
| 1533 | inp6 = (struct in6pcb *)inp; |
| 1534 | if ( |
| 1535 | #if defined(__OpenBSD__) |
| 1536 | (0) /* we always do dual bind */ |
| 1537 | #elif defined (__NetBSD__) |
| 1538 | (inp6->in6p_flags & IN6P_IPV6_V6ONLY) |
| 1539 | #else |
| 1540 | (inp6->inp_flags & IN6P_IPV6_V6ONLY) |
| 1541 | #endif |
| 1542 | ) { |
| 1543 | /* |
| 1544 | * if IPV6_V6ONLY flag, ignore connections |
| 1545 | * destined to a v4 addr or v4-mapped addr |
| 1546 | */ |
| 1547 | SCTP_INP_WUNLOCK(inp); |
| 1548 | SCTP_ASOC_CREATE_UNLOCK(inp); |
| 1549 | crit_exit(); |
| 1550 | return EINVAL; |
| 1551 | } |
| 1552 | } |
| 1553 | #endif /* INET6 */ |
| 1554 | if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == |
| 1555 | SCTP_PCB_FLAGS_UNBOUND) { |
| 1556 | /* Bind a ephemeral port */ |
| 1557 | SCTP_INP_WUNLOCK(inp); |
| 1558 | error = sctp_inpcb_bind(so, NULL, p); |
| 1559 | if (error) { |
| 1560 | SCTP_ASOC_CREATE_UNLOCK(inp); |
| 1561 | crit_exit(); |
| 1562 | return (error); |
| 1563 | } |
| 1564 | } else { |
| 1565 | SCTP_INP_WUNLOCK(inp); |
| 1566 | } |
| 1567 | /* We are GOOD to go */ |
| 1568 | stcb = sctp_aloc_assoc(inp, sa, 1, &error, 0); |
| 1569 | if (stcb == NULL) { |
| 1570 | /* Gak! no memory */ |
| 1571 | SCTP_ASOC_CREATE_UNLOCK(inp); |
| 1572 | crit_exit(); |
| 1573 | return (error); |
| 1574 | } |
| 1575 | /* move to second address */ |
| 1576 | if (sa->sa_family == AF_INET) |
| 1577 | sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in)); |
| 1578 | else |
| 1579 | sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in6)); |
| 1580 | |
| 1581 | for (i = 1; i < totaddr; i++) { |
| 1582 | if (sa->sa_family == AF_INET) { |
| 1583 | incr = sizeof(struct sockaddr_in); |
| 1584 | if (sctp_add_remote_addr(stcb, sa, 0, 8)) { |
| 1585 | /* assoc gone no un-lock */ |
| 1586 | sctp_free_assoc(inp, stcb); |
| 1587 | SCTP_ASOC_CREATE_UNLOCK(inp); |
| 1588 | crit_exit(); |
| 1589 | return (ENOBUFS); |
| 1590 | } |
| 1591 | |
| 1592 | } else if (sa->sa_family == AF_INET6) { |
| 1593 | incr = sizeof(struct sockaddr_in6); |
| 1594 | if (sctp_add_remote_addr(stcb, sa, 0, 8)) { |
| 1595 | /* assoc gone no un-lock */ |
| 1596 | sctp_free_assoc(inp, stcb); |
| 1597 | SCTP_ASOC_CREATE_UNLOCK(inp); |
| 1598 | crit_exit(); |
| 1599 | return (ENOBUFS); |
| 1600 | } |
| 1601 | } |
| 1602 | sa = (struct sockaddr *)((caddr_t)sa + incr); |
| 1603 | } |
| 1604 | stcb->asoc.state = SCTP_STATE_COOKIE_WAIT; |
| 1605 | if (delay) { |
| 1606 | /* doing delayed connection */ |
| 1607 | stcb->asoc.delayed_connection = 1; |
| 1608 | sctp_timer_start(SCTP_TIMER_TYPE_INIT, inp, stcb, stcb->asoc.primary_destination); |
| 1609 | } else { |
| 1610 | SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered); |
| 1611 | sctp_send_initiate(inp, stcb); |
| 1612 | } |
| 1613 | SCTP_TCB_UNLOCK(stcb); |
| 1614 | if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) { |
| 1615 | stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED; |
| 1616 | /* Set the connected flag so we can queue data */ |
| 1617 | soisconnecting(so); |
| 1618 | } |
| 1619 | SCTP_ASOC_CREATE_UNLOCK(inp); |
| 1620 | crit_exit(); |
| 1621 | return error; |
| 1622 | } |
| 1623 | |
| 1624 | |
| 1625 | static int |
| 1626 | sctp_optsget(struct socket *so, |
| 1627 | int opt, |
| 1628 | struct mbuf **mp, |
| 1629 | #if (defined(__FreeBSD__) && __FreeBSD_version >= 500000) || defined(__DragonFly__) |
| 1630 | struct thread *p |
| 1631 | #else |
| 1632 | struct proc *p |
| 1633 | #endif |
| 1634 | ) |
| 1635 | { |
| 1636 | struct sctp_inpcb *inp; |
| 1637 | struct mbuf *m; |
| 1638 | int error, optval=0; |
| 1639 | struct sctp_tcb *stcb = NULL; |
| 1640 | |
| 1641 | inp = (struct sctp_inpcb *)so->so_pcb; |
| 1642 | if (inp == 0) |
| 1643 | return EINVAL; |
| 1644 | error = 0; |
| 1645 | |
| 1646 | if (mp == NULL) { |
| 1647 | #ifdef SCTP_DEBUG |
| 1648 | if (sctp_debug_on & SCTP_DEBUG_USRREQ1) { |
| 1649 | kprintf("optsget:MP is NULL EINVAL\n"); |
| 1650 | } |
| 1651 | #endif /* SCTP_DEBUG */ |
| 1652 | return (EINVAL); |
| 1653 | } |
| 1654 | m = *mp; |
| 1655 | if (m == NULL) { |
| 1656 | /* Got to have a mbuf */ |
| 1657 | #ifdef SCTP_DEBUG |
| 1658 | if (sctp_debug_on & SCTP_DEBUG_USRREQ1) { |
| 1659 | kprintf("Huh no mbuf\n"); |
| 1660 | } |
| 1661 | #endif /* SCTP_DEBUG */ |
| 1662 | return (EINVAL); |
| 1663 | } |
| 1664 | #ifdef SCTP_DEBUG |
| 1665 | if (sctp_debug_on & SCTP_DEBUG_USRREQ2) { |
| 1666 | kprintf("optsget opt:%lxx sz:%u\n", (unsigned long)opt, |
| 1667 | m->m_len); |
| 1668 | } |
| 1669 | #endif /* SCTP_DEBUG */ |
| 1670 | |
| 1671 | switch (opt) { |
| 1672 | case SCTP_NODELAY: |
| 1673 | case SCTP_AUTOCLOSE: |
| 1674 | case SCTP_AUTO_ASCONF: |
| 1675 | case SCTP_DISABLE_FRAGMENTS: |
| 1676 | case SCTP_I_WANT_MAPPED_V4_ADDR: |
| 1677 | #ifdef SCTP_DEBUG |
| 1678 | if (sctp_debug_on & SCTP_DEBUG_USRREQ2) { |
| 1679 | kprintf("other stuff\n"); |
| 1680 | } |
| 1681 | #endif /* SCTP_DEBUG */ |
| 1682 | SCTP_INP_RLOCK(inp); |
| 1683 | switch (opt) { |
| 1684 | case SCTP_DISABLE_FRAGMENTS: |
| 1685 | optval = inp->sctp_flags & SCTP_PCB_FLAGS_NO_FRAGMENT; |
| 1686 | break; |
| 1687 | case SCTP_I_WANT_MAPPED_V4_ADDR: |
| 1688 | optval = inp->sctp_flags & SCTP_PCB_FLAGS_NEEDS_MAPPED_V4; |
| 1689 | break; |
| 1690 | case SCTP_AUTO_ASCONF: |
| 1691 | optval = inp->sctp_flags & SCTP_PCB_FLAGS_AUTO_ASCONF; |
| 1692 | break; |
| 1693 | case SCTP_NODELAY: |
| 1694 | optval = inp->sctp_flags & SCTP_PCB_FLAGS_NODELAY; |
| 1695 | break; |
| 1696 | case SCTP_AUTOCLOSE: |
| 1697 | if ((inp->sctp_flags & SCTP_PCB_FLAGS_AUTOCLOSE) == |
| 1698 | SCTP_PCB_FLAGS_AUTOCLOSE) |
| 1699 | optval = inp->sctp_ep.auto_close_time; |
| 1700 | else |
| 1701 | optval = 0; |
| 1702 | break; |
| 1703 | |
| 1704 | default: |
| 1705 | error = ENOPROTOOPT; |
| 1706 | } /* end switch (sopt->sopt_name) */ |
| 1707 | if (opt != SCTP_AUTOCLOSE) { |
| 1708 | /* make it an "on/off" value */ |
| 1709 | optval = (optval != 0); |
| 1710 | } |
| 1711 | if ((size_t)m->m_len < sizeof(int)) { |
| 1712 | error = EINVAL; |
| 1713 | } |
| 1714 | SCTP_INP_RUNLOCK(inp); |
| 1715 | if (error == 0) { |
| 1716 | /* return the option value */ |
| 1717 | *mtod(m, int *) = optval; |
| 1718 | m->m_len = sizeof(optval); |
| 1719 | } |
| 1720 | break; |
| 1721 | case SCTP_GET_ASOC_ID_LIST: |
| 1722 | { |
| 1723 | struct sctp_assoc_ids *ids; |
| 1724 | int cnt, at; |
| 1725 | u_int16_t orig; |
| 1726 | |
| 1727 | if ((size_t)m->m_len < sizeof(struct sctp_assoc_ids)) { |
| 1728 | error = EINVAL; |
| 1729 | break; |
| 1730 | } |
| 1731 | ids = mtod(m, struct sctp_assoc_ids *); |
| 1732 | cnt = 0; |
| 1733 | SCTP_INP_RLOCK(inp); |
| 1734 | stcb = LIST_FIRST(&inp->sctp_asoc_list); |
| 1735 | if (stcb == NULL) { |
| 1736 | none_out_now: |
| 1737 | ids->asls_numb_present = 0; |
| 1738 | ids->asls_more_to_get = 0; |
| 1739 | SCTP_INP_RUNLOCK(inp); |
| 1740 | break; |
| 1741 | } |
| 1742 | orig = ids->asls_assoc_start; |
| 1743 | stcb = LIST_FIRST(&inp->sctp_asoc_list); |
| 1744 | while( orig ) { |
| 1745 | stcb = LIST_NEXT(stcb , sctp_tcblist); |
| 1746 | orig--; |
| 1747 | cnt--; |
| 1748 | } |
| 1749 | if ( stcb == NULL) |
| 1750 | goto none_out_now; |
| 1751 | |
| 1752 | at = 0; |
| 1753 | ids->asls_numb_present = 0; |
| 1754 | ids->asls_more_to_get = 1; |
| 1755 | while(at < MAX_ASOC_IDS_RET) { |
| 1756 | ids->asls_assoc_id[at] = sctp_get_associd(stcb); |
| 1757 | at++; |
| 1758 | ids->asls_numb_present++; |
| 1759 | stcb = LIST_NEXT(stcb , sctp_tcblist); |
| 1760 | if (stcb == NULL) { |
| 1761 | ids->asls_more_to_get = 0; |
| 1762 | break; |
| 1763 | } |
| 1764 | } |
| 1765 | SCTP_INP_RUNLOCK(inp); |
| 1766 | } |
| 1767 | break; |
| 1768 | case SCTP_GET_NONCE_VALUES: |
| 1769 | { |
| 1770 | struct sctp_get_nonce_values *gnv; |
| 1771 | if ((size_t)m->m_len < sizeof(struct sctp_get_nonce_values)) { |
| 1772 | error = EINVAL; |
| 1773 | break; |
| 1774 | } |
| 1775 | gnv = mtod(m, struct sctp_get_nonce_values *); |
| 1776 | stcb = sctp_findassociation_ep_asocid(inp, gnv->gn_assoc_id); |
| 1777 | if (stcb == NULL) { |
| 1778 | error = ENOTCONN; |
| 1779 | } else { |
| 1780 | gnv->gn_peers_tag = stcb->asoc.peer_vtag; |
| 1781 | gnv->gn_local_tag = stcb->asoc.my_vtag; |
| 1782 | SCTP_TCB_UNLOCK(stcb); |
| 1783 | } |
| 1784 | |
| 1785 | } |
| 1786 | break; |
| 1787 | case SCTP_PEER_PUBLIC_KEY: |
| 1788 | case SCTP_MY_PUBLIC_KEY: |
| 1789 | case SCTP_SET_AUTH_CHUNKS: |
| 1790 | case SCTP_SET_AUTH_SECRET: |
| 1791 | /* not supported yet and until we refine the draft */ |
| 1792 | error = EOPNOTSUPP; |
| 1793 | break; |
| 1794 | |
| 1795 | case SCTP_DELAYED_ACK_TIME: |
| 1796 | { |
| 1797 | int32_t *tm; |
| 1798 | if ((size_t)m->m_len < sizeof(int32_t)) { |
| 1799 | error = EINVAL; |
| 1800 | break; |
| 1801 | } |
| 1802 | tm = mtod(m, int32_t *); |
| 1803 | |
| 1804 | *tm = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV]); |
| 1805 | } |
| 1806 | break; |
| 1807 | |
| 1808 | case SCTP_GET_SNDBUF_USE: |
| 1809 | if ((size_t)m->m_len < sizeof(struct sctp_sockstat)) { |
| 1810 | error = EINVAL; |
| 1811 | } else { |
| 1812 | struct sctp_sockstat *ss; |
| 1813 | struct sctp_tcb *stcb; |
| 1814 | struct sctp_association *asoc; |
| 1815 | ss = mtod(m, struct sctp_sockstat *); |
| 1816 | stcb = sctp_findassociation_ep_asocid(inp, ss->ss_assoc_id); |
| 1817 | if (stcb == NULL) { |
| 1818 | error = ENOTCONN; |
| 1819 | } else { |
| 1820 | asoc = &stcb->asoc; |
| 1821 | ss->ss_total_sndbuf = (u_int32_t)asoc->total_output_queue_size; |
| 1822 | ss->ss_total_mbuf_sndbuf = (u_int32_t)asoc->total_output_mbuf_queue_size; |
| 1823 | ss->ss_total_recv_buf = (u_int32_t)(asoc->size_on_delivery_queue + |
| 1824 | asoc->size_on_reasm_queue + |
| 1825 | asoc->size_on_all_streams); |
| 1826 | SCTP_TCB_UNLOCK(stcb); |
| 1827 | error = 0; |
| 1828 | m->m_len = sizeof(struct sctp_sockstat); |
| 1829 | } |
| 1830 | } |
| 1831 | break; |
| 1832 | case SCTP_MAXBURST: |
| 1833 | { |
| 1834 | u_int8_t *burst; |
| 1835 | burst = mtod(m, u_int8_t *); |
| 1836 | SCTP_INP_RLOCK(inp); |
| 1837 | *burst = inp->sctp_ep.max_burst; |
| 1838 | SCTP_INP_RUNLOCK(inp); |
| 1839 | m->m_len = sizeof(u_int8_t); |
| 1840 | } |
| 1841 | break; |
| 1842 | case SCTP_MAXSEG: |
| 1843 | { |
| 1844 | u_int32_t *segsize; |
| 1845 | sctp_assoc_t *assoc_id; |
| 1846 | int ovh; |
| 1847 | |
| 1848 | if ((size_t)m->m_len < sizeof(u_int32_t)) { |
| 1849 | error = EINVAL; |
| 1850 | break; |
| 1851 | } |
| 1852 | if ((size_t)m->m_len < sizeof(sctp_assoc_t)) { |
| 1853 | error = EINVAL; |
| 1854 | break; |
| 1855 | } |
| 1856 | assoc_id = mtod(m, sctp_assoc_t *); |
| 1857 | segsize = mtod(m, u_int32_t *); |
| 1858 | m->m_len = sizeof(u_int32_t); |
| 1859 | |
| 1860 | if (((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) && |
| 1861 | (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) || |
| 1862 | (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { |
| 1863 | struct sctp_tcb *stcb; |
| 1864 | SCTP_INP_RLOCK(inp); |
| 1865 | stcb = LIST_FIRST(&inp->sctp_asoc_list); |
| 1866 | if (stcb) { |
| 1867 | SCTP_TCB_LOCK(stcb); |
| 1868 | SCTP_INP_RUNLOCK(inp); |
| 1869 | *segsize = sctp_get_frag_point(stcb, &stcb->asoc); |
| 1870 | SCTP_TCB_UNLOCK(stcb); |
| 1871 | } else { |
| 1872 | SCTP_INP_RUNLOCK(inp); |
| 1873 | goto skipit; |
| 1874 | } |
| 1875 | } else { |
| 1876 | stcb = sctp_findassociation_ep_asocid(inp, *assoc_id); |
| 1877 | if (stcb) { |
| 1878 | *segsize = sctp_get_frag_point(stcb, &stcb->asoc); |
| 1879 | SCTP_TCB_UNLOCK(stcb); |
| 1880 | break; |
| 1881 | } |
| 1882 | skipit: |
| 1883 | /* default is to get the max, if I |
| 1884 | * can't calculate from an existing association. |
| 1885 | */ |
| 1886 | if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { |
| 1887 | ovh = SCTP_MED_OVERHEAD; |
| 1888 | } else { |
| 1889 | ovh = SCTP_MED_V4_OVERHEAD; |
| 1890 | } |
| 1891 | *segsize = inp->sctp_frag_point - ovh; |
| 1892 | } |
| 1893 | } |
| 1894 | break; |
| 1895 | |
| 1896 | case SCTP_SET_DEBUG_LEVEL: |
| 1897 | #ifdef SCTP_DEBUG |
| 1898 | { |
| 1899 | u_int32_t *level; |
| 1900 | if ((size_t)m->m_len < sizeof(u_int32_t)) { |
| 1901 | error = EINVAL; |
| 1902 | break; |
| 1903 | } |
| 1904 | level = mtod(m, u_int32_t *); |
| 1905 | error = 0; |
| 1906 | *level = sctp_debug_on; |
| 1907 | m->m_len = sizeof(u_int32_t); |
| 1908 | kprintf("Returning DEBUG LEVEL %x is set\n", |
| 1909 | (u_int)sctp_debug_on); |
| 1910 | } |
| 1911 | #else /* SCTP_DEBUG */ |
| 1912 | error = EOPNOTSUPP; |
| 1913 | #endif |
| 1914 | break; |
| 1915 | case SCTP_GET_STAT_LOG: |
| 1916 | #ifdef SCTP_STAT_LOGGING |
| 1917 | error = sctp_fill_stat_log(m); |
| 1918 | #else /* SCTP_DEBUG */ |
| 1919 | error = EOPNOTSUPP; |
| 1920 | #endif |
| 1921 | break; |
| 1922 | case SCTP_GET_PEGS: |
| 1923 | { |
| 1924 | u_int32_t *pt; |
| 1925 | if ((size_t)m->m_len < sizeof(sctp_pegs)) { |
| 1926 | error = EINVAL; |
| 1927 | break; |
| 1928 | } |
| 1929 | pt = mtod(m, u_int32_t *); |
| 1930 | memcpy(pt, sctp_pegs, sizeof(sctp_pegs)); |
| 1931 | m->m_len = sizeof(sctp_pegs); |
| 1932 | } |
| 1933 | break; |
| 1934 | case SCTP_EVENTS: |
| 1935 | { |
| 1936 | struct sctp_event_subscribe *events; |
| 1937 | #ifdef SCTP_DEBUG |
| 1938 | if (sctp_debug_on & SCTP_DEBUG_USRREQ2) { |
| 1939 | kprintf("get events\n"); |
| 1940 | } |
| 1941 | #endif /* SCTP_DEBUG */ |
| 1942 | if ((size_t)m->m_len < sizeof(struct sctp_event_subscribe)) { |
| 1943 | #ifdef SCTP_DEBUG |
| 1944 | if (sctp_debug_on & SCTP_DEBUG_USRREQ2) { |
| 1945 | kprintf("M->M_LEN is %d not %d\n", |
| 1946 | (int)m->m_len, |
| 1947 | (int)sizeof(struct sctp_event_subscribe)); |
| 1948 | } |
| 1949 | #endif /* SCTP_DEBUG */ |
| 1950 | error = EINVAL; |
| 1951 | break; |
| 1952 | } |
| 1953 | events = mtod(m, struct sctp_event_subscribe *); |
| 1954 | memset(events, 0, sizeof(events)); |
| 1955 | SCTP_INP_RLOCK(inp); |
| 1956 | if (inp->sctp_flags & SCTP_PCB_FLAGS_RECVDATAIOEVNT) |
| 1957 | events->sctp_data_io_event = 1; |
| 1958 | |
| 1959 | if (inp->sctp_flags & SCTP_PCB_FLAGS_RECVASSOCEVNT) |
| 1960 | events->sctp_association_event = 1; |
| 1961 | |
| 1962 | if (inp->sctp_flags & SCTP_PCB_FLAGS_RECVPADDREVNT) |
| 1963 | events->sctp_address_event = 1; |
| 1964 | |
| 1965 | if (inp->sctp_flags & SCTP_PCB_FLAGS_RECVSENDFAILEVNT) |
| 1966 | events->sctp_send_failure_event = 1; |
| 1967 | |
| 1968 | if (inp->sctp_flags & SCTP_PCB_FLAGS_RECVPEERERR) |
| 1969 | events->sctp_peer_error_event = 1; |
| 1970 | |
| 1971 | if (inp->sctp_flags & SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT) |
| 1972 | events->sctp_shutdown_event = 1; |
| 1973 | |
| 1974 | if (inp->sctp_flags & SCTP_PCB_FLAGS_PDAPIEVNT) |
| 1975 | events->sctp_partial_delivery_event = 1; |
| 1976 | |
| 1977 | if (inp->sctp_flags & SCTP_PCB_FLAGS_ADAPTIONEVNT) |
| 1978 | events->sctp_adaption_layer_event = 1; |
| 1979 | |
| 1980 | if (inp->sctp_flags & SCTP_PCB_FLAGS_STREAM_RESETEVNT) |
| 1981 | events->sctp_stream_reset_events = 1; |
| 1982 | SCTP_INP_RUNLOCK(inp); |
| 1983 | m->m_len = sizeof(struct sctp_event_subscribe); |
| 1984 | |
| 1985 | } |
| 1986 | break; |
| 1987 | |
| 1988 | case SCTP_ADAPTION_LAYER: |
| 1989 | if ((size_t)m->m_len < sizeof(int)) { |
| 1990 | error = EINVAL; |
| 1991 | break; |
| 1992 | } |
| 1993 | #ifdef SCTP_DEBUG |
| 1994 | if (sctp_debug_on & SCTP_DEBUG_USRREQ1) { |
| 1995 | kprintf("getadaption ind\n"); |
| 1996 | } |
| 1997 | #endif /* SCTP_DEBUG */ |
| 1998 | SCTP_INP_RLOCK(inp); |
| 1999 | *mtod(m, int *) = inp->sctp_ep.adaption_layer_indicator; |
| 2000 | SCTP_INP_RUNLOCK(inp); |
| 2001 | m->m_len = sizeof(int); |
| 2002 | break; |
| 2003 | case SCTP_SET_INITIAL_DBG_SEQ: |
| 2004 | if ((size_t)m->m_len < sizeof(int)) { |
| 2005 | error = EINVAL; |
| 2006 | break; |
| 2007 | } |
| 2008 | #ifdef SCTP_DEBUG |
| 2009 | if (sctp_debug_on & SCTP_DEBUG_USRREQ1) { |
| 2010 | kprintf("get initial dbg seq\n"); |
| 2011 | } |
| 2012 | #endif /* SCTP_DEBUG */ |
| 2013 | SCTP_INP_RLOCK(inp); |
| 2014 | *mtod(m, int *) = inp->sctp_ep.initial_sequence_debug; |
| 2015 | SCTP_INP_RUNLOCK(inp); |
| 2016 | m->m_len = sizeof(int); |
| 2017 | break; |
| 2018 | case SCTP_GET_LOCAL_ADDR_SIZE: |
| 2019 | if ((size_t)m->m_len < sizeof(int)) { |
| 2020 | error = EINVAL; |
| 2021 | break; |
| 2022 | } |
| 2023 | #ifdef SCTP_DEBUG |
| 2024 | if (sctp_debug_on & SCTP_DEBUG_USRREQ1) { |
| 2025 | kprintf("get local sizes\n"); |
| 2026 | } |
| 2027 | #endif /* SCTP_DEBUG */ |
| 2028 | SCTP_INP_RLOCK(inp); |
| 2029 | *mtod(m, int *) = sctp_count_max_addresses(inp); |
| 2030 | SCTP_INP_RUNLOCK(inp); |
| 2031 | m->m_len = sizeof(int); |
| 2032 | break; |
| 2033 | case SCTP_GET_REMOTE_ADDR_SIZE: |
| 2034 | { |
| 2035 | sctp_assoc_t *assoc_id; |
| 2036 | u_int32_t *val, sz; |
| 2037 | struct sctp_nets *net; |
| 2038 | #ifdef SCTP_DEBUG |
| 2039 | if (sctp_debug_on & SCTP_DEBUG_USRREQ1) { |
| 2040 | kprintf("get remote size\n"); |
| 2041 | } |
| 2042 | #endif /* SCTP_DEBUG */ |
| 2043 | if ((size_t)m->m_len < sizeof(sctp_assoc_t)) { |
| 2044 | #ifdef SCTP_DEBUG |
| 2045 | kprintf("m->m_len:%d not %d\n", |
| 2046 | m->m_len, sizeof(sctp_assoc_t)); |
| 2047 | #endif /* SCTP_DEBUG */ |
| 2048 | error = EINVAL; |
| 2049 | break; |
| 2050 | } |
| 2051 | stcb = NULL; |
| 2052 | val = mtod(m, u_int32_t *); |
| 2053 | if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) { |
| 2054 | SCTP_INP_RLOCK(inp); |
| 2055 | stcb = LIST_FIRST(&inp->sctp_asoc_list); |
| 2056 | if (stcb) |
| 2057 | SCTP_TCB_LOCK(stcb); |
| 2058 | SCTP_INP_RUNLOCK(inp); |
| 2059 | } |
| 2060 | if (stcb == NULL) { |
| 2061 | assoc_id = mtod(m, sctp_assoc_t *); |
| 2062 | stcb = sctp_findassociation_ep_asocid(inp, *assoc_id); |
| 2063 | } |
| 2064 | |
| 2065 | if (stcb == NULL) { |
| 2066 | error = EINVAL; |
| 2067 | break; |
| 2068 | } |
| 2069 | *val = 0; |
| 2070 | sz = 0; |
| 2071 | /* Count the sizes */ |
| 2072 | TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { |
| 2073 | if ((stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_NEEDS_MAPPED_V4) || |
| 2074 | (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET6)) { |
| 2075 | sz += sizeof(struct sockaddr_in6); |
| 2076 | } else if (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET) { |
| 2077 | sz += sizeof(struct sockaddr_in); |
| 2078 | } else { |
| 2079 | /* huh */ |
| 2080 | break; |
| 2081 | } |
| 2082 | } |
| 2083 | SCTP_TCB_UNLOCK(stcb); |
| 2084 | *val = sz; |
| 2085 | m->m_len = sizeof(u_int32_t); |
| 2086 | } |
| 2087 | break; |
| 2088 | case SCTP_GET_PEER_ADDRESSES: |
| 2089 | /* |
| 2090 | * Get the address information, an array |
| 2091 | * is passed in to fill up we pack it. |
| 2092 | */ |
| 2093 | { |
| 2094 | int cpsz, left; |
| 2095 | struct sockaddr_storage *sas; |
| 2096 | struct sctp_nets *net; |
| 2097 | struct sctp_getaddresses *saddr; |
| 2098 | #ifdef SCTP_DEBUG |
| 2099 | if (sctp_debug_on & SCTP_DEBUG_USRREQ1) { |
| 2100 | kprintf("get peer addresses\n"); |
| 2101 | } |
| 2102 | #endif /* SCTP_DEBUG */ |
| 2103 | if ((size_t)m->m_len < sizeof(struct sctp_getaddresses)) { |
| 2104 | error = EINVAL; |
| 2105 | break; |
| 2106 | } |
| 2107 | left = m->m_len - sizeof(struct sctp_getaddresses); |
| 2108 | saddr = mtod(m, struct sctp_getaddresses *); |
| 2109 | if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) { |
| 2110 | SCTP_INP_RLOCK(inp); |
| 2111 | stcb = LIST_FIRST(&inp->sctp_asoc_list); |
| 2112 | if (stcb) |
| 2113 | SCTP_TCB_LOCK(stcb); |
| 2114 | SCTP_INP_RUNLOCK(inp); |
| 2115 | } else |
| 2116 | stcb = sctp_findassociation_ep_asocid(inp, |
| 2117 | saddr->sget_assoc_id); |
| 2118 | if (stcb == NULL) { |
| 2119 | error = ENOENT; |
| 2120 | break; |
| 2121 | } |
| 2122 | m->m_len = sizeof(struct sctp_getaddresses); |
| 2123 | sas = (struct sockaddr_storage *)&saddr->addr[0]; |
| 2124 | |
| 2125 | TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { |
| 2126 | if ((stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_NEEDS_MAPPED_V4) || |
| 2127 | (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET6)) { |
| 2128 | cpsz = sizeof(struct sockaddr_in6); |
| 2129 | } else if (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET) { |
| 2130 | cpsz = sizeof(struct sockaddr_in); |
| 2131 | } else { |
| 2132 | /* huh */ |
| 2133 | break; |
| 2134 | } |
| 2135 | if (left < cpsz) { |
| 2136 | /* not enough room. */ |
| 2137 | #ifdef SCTP_DEBUG |
| 2138 | if (sctp_debug_on & SCTP_DEBUG_USRREQ1) { |
| 2139 | kprintf("Out of room\n"); |
| 2140 | } |
| 2141 | #endif /* SCTP_DEBUG */ |
| 2142 | break; |
| 2143 | } |
| 2144 | if ((stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_NEEDS_MAPPED_V4) && |
| 2145 | (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET)) { |
| 2146 | /* Must map the address */ |
| 2147 | in6_sin_2_v4mapsin6((struct sockaddr_in *)&net->ro._l_addr, |
| 2148 | (struct sockaddr_in6 *)sas); |
| 2149 | } else { |
| 2150 | memcpy(sas, &net->ro._l_addr, cpsz); |
| 2151 | } |
| 2152 | ((struct sockaddr_in *)sas)->sin_port = stcb->rport; |
| 2153 | |
| 2154 | sas = (struct sockaddr_storage *)((caddr_t)sas + cpsz); |
| 2155 | left -= cpsz; |
| 2156 | m->m_len += cpsz; |
| 2157 | #ifdef SCTP_DEBUG |
| 2158 | if (sctp_debug_on & SCTP_DEBUG_USRREQ2) { |
| 2159 | kprintf("left now:%d mlen:%d\n", |
| 2160 | left, m->m_len); |
| 2161 | } |
| 2162 | #endif /* SCTP_DEBUG */ |
| 2163 | } |
| 2164 | SCTP_TCB_UNLOCK(stcb); |
| 2165 | } |
| 2166 | #ifdef SCTP_DEBUG |
| 2167 | if (sctp_debug_on & SCTP_DEBUG_USRREQ1) { |
| 2168 | kprintf("All done\n"); |
| 2169 | } |
| 2170 | #endif /* SCTP_DEBUG */ |
| 2171 | break; |
| 2172 | case SCTP_GET_LOCAL_ADDRESSES: |
| 2173 | { |
| 2174 | int limit, actual; |
| 2175 | struct sockaddr_storage *sas; |
| 2176 | struct sctp_getaddresses *saddr; |
| 2177 | #ifdef SCTP_DEBUG |
| 2178 | if (sctp_debug_on & SCTP_DEBUG_USRREQ1) { |
| 2179 | kprintf("get local addresses\n"); |
| 2180 | } |
| 2181 | #endif /* SCTP_DEBUG */ |
| 2182 | if ((size_t)m->m_len < sizeof(struct sctp_getaddresses)) { |
| 2183 | error = EINVAL; |
| 2184 | break; |
| 2185 | } |
| 2186 | saddr = mtod(m, struct sctp_getaddresses *); |
| 2187 | |
| 2188 | if (saddr->sget_assoc_id) { |
| 2189 | if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) { |
| 2190 | SCTP_INP_RLOCK(inp); |
| 2191 | stcb = LIST_FIRST(&inp->sctp_asoc_list); |
| 2192 | if (stcb) |
| 2193 | SCTP_TCB_LOCK(stcb); |
| 2194 | SCTP_INP_RUNLOCK(inp); |
| 2195 | } else |
| 2196 | stcb = sctp_findassociation_ep_asocid(inp, saddr->sget_assoc_id); |
| 2197 | |
| 2198 | } else { |
| 2199 | stcb = NULL; |
| 2200 | } |
| 2201 | /* |
| 2202 | * assure that the TCP model does not need a assoc id |
| 2203 | * once connected. |
| 2204 | */ |
| 2205 | if ( (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) && |
| 2206 | (stcb == NULL) ) { |
| 2207 | SCTP_INP_RLOCK(inp); |
| 2208 | stcb = LIST_FIRST(&inp->sctp_asoc_list); |
| 2209 | if (stcb) |
| 2210 | SCTP_TCB_LOCK(stcb); |
| 2211 | SCTP_INP_RUNLOCK(inp); |
| 2212 | } |
| 2213 | sas = (struct sockaddr_storage *)&saddr->addr[0]; |
| 2214 | limit = m->m_len - sizeof(sctp_assoc_t); |
| 2215 | actual = sctp_fill_up_addresses(inp, stcb, limit, sas); |
| 2216 | SCTP_TCB_UNLOCK(stcb); |
| 2217 | m->m_len = sizeof(struct sockaddr_storage) + actual; |
| 2218 | } |
| 2219 | break; |
| 2220 | case SCTP_PEER_ADDR_PARAMS: |
| 2221 | { |
| 2222 | struct sctp_paddrparams *paddrp; |
| 2223 | struct sctp_nets *net; |
| 2224 | |
| 2225 | #ifdef SCTP_DEBUG |
| 2226 | if (sctp_debug_on & SCTP_DEBUG_USRREQ1) { |
| 2227 | kprintf("Getting peer_addr_params\n"); |
| 2228 | } |
| 2229 | #endif /* SCTP_DEBUG */ |
| 2230 | if ((size_t)m->m_len < sizeof(struct sctp_paddrparams)) { |
| 2231 | #ifdef SCTP_DEBUG |
| 2232 | if (sctp_debug_on & SCTP_DEBUG_USRREQ2) { |
| 2233 | kprintf("Hmm m->m_len:%d is to small\n", |
| 2234 | m->m_len); |
| 2235 | } |
| 2236 | #endif /* SCTP_DEBUG */ |
| 2237 | error = EINVAL; |
| 2238 | break; |
| 2239 | } |
| 2240 | paddrp = mtod(m, struct sctp_paddrparams *); |
| 2241 | |
| 2242 | net = NULL; |
| 2243 | if (paddrp->spp_assoc_id) { |
| 2244 | #ifdef SCTP_DEBUG |
| 2245 | if (sctp_debug_on & SCTP_DEBUG_USRREQ1) { |
| 2246 | kprintf("In spp_assoc_id find type\n"); |
| 2247 | } |
| 2248 | #endif /* SCTP_DEBUG */ |
| 2249 | if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) { |
| 2250 | SCTP_INP_RLOCK(inp); |
| 2251 | stcb = LIST_FIRST(&inp->sctp_asoc_list); |
| 2252 | if (stcb) { |
| 2253 | SCTP_TCB_LOCK(stcb); |
| 2254 | net = sctp_findnet(stcb, (struct sockaddr *)&paddrp->spp_address); |
| 2255 | } |
| 2256 | SCTP_INP_RLOCK(inp); |
| 2257 | } else { |
| 2258 | stcb = sctp_findassociation_ep_asocid(inp, paddrp->spp_assoc_id); |
| 2259 | } |
| 2260 | if (stcb == NULL) { |
| 2261 | error = ENOENT; |
| 2262 | break; |
| 2263 | } |
| 2264 | } |
| 2265 | if ( (stcb == NULL) && |
| 2266 | ((((struct sockaddr *)&paddrp->spp_address)->sa_family == AF_INET) || |
| 2267 | (((struct sockaddr *)&paddrp->spp_address)->sa_family == AF_INET6))) { |
| 2268 | /* Lookup via address */ |
| 2269 | #ifdef SCTP_DEBUG |
| 2270 | if (sctp_debug_on & SCTP_DEBUG_USRREQ1) { |
| 2271 | kprintf("Ok we need to lookup a param\n"); |
| 2272 | } |
| 2273 | #endif /* SCTP_DEBUG */ |
| 2274 | if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) { |
| 2275 | SCTP_INP_RLOCK(inp); |
| 2276 | stcb = LIST_FIRST(&inp->sctp_asoc_list); |
| 2277 | if (stcb) { |
| 2278 | SCTP_TCB_LOCK(stcb); |
| 2279 | net = sctp_findnet(stcb, (struct sockaddr *)&paddrp->spp_address); |
| 2280 | } |
| 2281 | SCTP_INP_RUNLOCK(inp); |
| 2282 | } else { |
| 2283 | SCTP_INP_WLOCK(inp); |
| 2284 | SCTP_INP_INCR_REF(inp); |
| 2285 | SCTP_INP_WUNLOCK(inp); |
| 2286 | stcb = sctp_findassociation_ep_addr(&inp, |
| 2287 | (struct sockaddr *)&paddrp->spp_address, |
| 2288 | &net, NULL, NULL); |
| 2289 | if (stcb == NULL) { |
| 2290 | SCTP_INP_WLOCK(inp); |
| 2291 | SCTP_INP_DECR_REF(inp); |
| 2292 | SCTP_INP_WUNLOCK(inp); |
| 2293 | } |
| 2294 | } |
| 2295 | |
| 2296 | if (stcb == NULL) { |
| 2297 | error = ENOENT; |
| 2298 | break; |
| 2299 | } |
| 2300 | } else { |
| 2301 | /* Effects the Endpoint */ |
| 2302 | #ifdef SCTP_DEBUG |
| 2303 | if (sctp_debug_on & SCTP_DEBUG_USRREQ1) { |
| 2304 | kprintf("User wants EP level info\n"); |
| 2305 | } |
| 2306 | #endif /* SCTP_DEBUG */ |
| 2307 | stcb = NULL; |
| 2308 | } |
| 2309 | if (stcb) { |
| 2310 | /* Applys to the specific association */ |
| 2311 | #ifdef SCTP_DEBUG |
| 2312 | if (sctp_debug_on & SCTP_DEBUG_USRREQ1) { |
| 2313 | kprintf("In TCB side\n"); |
| 2314 | } |
| 2315 | #endif /* SCTP_DEBUG */ |
| 2316 | if (net) { |
| 2317 | paddrp->spp_pathmaxrxt = net->failure_threshold; |
| 2318 | } else { |
| 2319 | /* No destination so return default value */ |
| 2320 | paddrp->spp_pathmaxrxt = stcb->asoc.def_net_failure; |
| 2321 | } |
| 2322 | paddrp->spp_hbinterval = stcb->asoc.heart_beat_delay; |
| 2323 | paddrp->spp_assoc_id = sctp_get_associd(stcb); |
| 2324 | SCTP_TCB_UNLOCK(stcb); |
| 2325 | } else { |
| 2326 | /* Use endpoint defaults */ |
| 2327 | SCTP_INP_RLOCK(inp); |
| 2328 | #ifdef SCTP_DEBUG |
| 2329 | if (sctp_debug_on & SCTP_DEBUG_USRREQ1) { |
| 2330 | kprintf("In EP level info\n"); |
| 2331 | } |
| 2332 | #endif /* SCTP_DEBUG */ |
| 2333 | paddrp->spp_pathmaxrxt = inp->sctp_ep.def_net_failure; |
| 2334 | paddrp->spp_hbinterval = inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT]; |
| 2335 | paddrp->spp_assoc_id = (sctp_assoc_t)0; |
| 2336 | SCTP_INP_RUNLOCK(inp); |
| 2337 | } |
| 2338 | m->m_len = sizeof(struct sctp_paddrparams); |
| 2339 | } |
| 2340 | break; |
| 2341 | case SCTP_GET_PEER_ADDR_INFO: |
| 2342 | { |
| 2343 | struct sctp_paddrinfo *paddri; |
| 2344 | struct sctp_nets *net; |
| 2345 | #ifdef SCTP_DEBUG |
| 2346 | if (sctp_debug_on & SCTP_DEBUG_USRREQ1) { |
| 2347 | kprintf("GetPEER ADDR_INFO\n"); |
| 2348 | } |
| 2349 | #endif /* SCTP_DEBUG */ |
| 2350 | if ((size_t)m->m_len < sizeof(struct sctp_paddrinfo)) { |
| 2351 | error = EINVAL; |
| 2352 | break; |
| 2353 | } |
| 2354 | paddri = mtod(m, struct sctp_paddrinfo *); |
| 2355 | net = NULL; |
| 2356 | if ((((struct sockaddr *)&paddri->spinfo_address)->sa_family == AF_INET) || |
| 2357 | (((struct sockaddr *)&paddri->spinfo_address)->sa_family == AF_INET6)) { |
| 2358 | /* Lookup via address */ |
| 2359 | if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) { |
| 2360 | SCTP_INP_RLOCK(inp); |
| 2361 | stcb = LIST_FIRST(&inp->sctp_asoc_list); |
| 2362 | if (stcb) { |
| 2363 | SCTP_TCB_LOCK(stcb); |
| 2364 | net = sctp_findnet(stcb, |
| 2365 | (struct sockaddr *)&paddri->spinfo_address); |
| 2366 | } |
| 2367 | SCTP_INP_RUNLOCK(inp); |
| 2368 | } else { |
| 2369 | SCTP_INP_WLOCK(inp); |
| 2370 | SCTP_INP_INCR_REF(inp); |
| 2371 | SCTP_INP_WUNLOCK(inp); |
| 2372 | stcb = sctp_findassociation_ep_addr(&inp, |
| 2373 | (struct sockaddr *)&paddri->spinfo_address, |
| 2374 | &net, NULL, NULL); |
| 2375 | if (stcb == NULL) { |
| 2376 | SCTP_INP_WLOCK(inp); |
| 2377 | SCTP_INP_DECR_REF(inp); |
| 2378 | SCTP_INP_WUNLOCK(inp); |
| 2379 | } |
| 2380 | } |
| 2381 | |
| 2382 | } else { |
| 2383 | stcb = NULL; |
| 2384 | } |
| 2385 | if ((stcb == NULL) || (net == NULL)) { |
| 2386 | error = ENOENT; |
| 2387 | break; |
| 2388 | } |
| 2389 | m->m_len = sizeof(struct sctp_paddrinfo); |
| 2390 | paddri->spinfo_state = net->dest_state & (SCTP_REACHABLE_MASK|SCTP_ADDR_NOHB); |
| 2391 | paddri->spinfo_cwnd = net->cwnd; |
| 2392 | paddri->spinfo_srtt = ((net->lastsa >> 2) + net->lastsv) >> 1; |
| 2393 | paddri->spinfo_rto = net->RTO; |
| 2394 | paddri->spinfo_assoc_id = sctp_get_associd(stcb); |
| 2395 | SCTP_TCB_UNLOCK(stcb); |
| 2396 | } |
| 2397 | break; |
| 2398 | case SCTP_PCB_STATUS: |
| 2399 | { |
| 2400 | struct sctp_pcbinfo *spcb; |
| 2401 | #ifdef SCTP_DEBUG |
| 2402 | if (sctp_debug_on & SCTP_DEBUG_USRREQ1) { |
| 2403 | kprintf("PCB status\n"); |
| 2404 | } |
| 2405 | #endif /* SCTP_DEBUG */ |
| 2406 | if ((size_t)m->m_len < sizeof(struct sctp_pcbinfo)) { |
| 2407 | error = EINVAL; |
| 2408 | break; |
| 2409 | } |
| 2410 | spcb = mtod(m, struct sctp_pcbinfo *); |
| 2411 | sctp_fill_pcbinfo(spcb); |
| 2412 | m->m_len = sizeof(struct sctp_pcbinfo); |
| 2413 | } |
| 2414 | break; |
| 2415 | case SCTP_STATUS: |
| 2416 | { |
| 2417 | struct sctp_nets *net; |
| 2418 | struct sctp_status *sstat; |
| 2419 | #ifdef SCTP_DEBUG |
| 2420 | if (sctp_debug_on & SCTP_DEBUG_USRREQ1) { |
| 2421 | kprintf("SCTP status\n"); |
| 2422 | } |
| 2423 | #endif /* SCTP_DEBUG */ |
| 2424 | |
| 2425 | if ((size_t)m->m_len < sizeof(struct sctp_status)) { |
| 2426 | error = EINVAL; |
| 2427 | break; |
| 2428 | } |
| 2429 | sstat = mtod(m, struct sctp_status *); |
| 2430 | |
| 2431 | if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) { |
| 2432 | SCTP_INP_RLOCK(inp); |
| 2433 | stcb = LIST_FIRST(&inp->sctp_asoc_list); |
| 2434 | if (stcb) |
| 2435 | SCTP_TCB_LOCK(stcb); |
| 2436 | SCTP_INP_RUNLOCK(inp); |
| 2437 | } else |
| 2438 | stcb = sctp_findassociation_ep_asocid(inp, sstat->sstat_assoc_id); |
| 2439 | |
| 2440 | if (stcb == NULL) { |
| 2441 | error = EINVAL; |
| 2442 | break; |
| 2443 | } |
| 2444 | /* |
| 2445 | * I think passing the state is fine since |
| 2446 | * sctp_constants.h will be available to the user |
| 2447 | * land. |
| 2448 | */ |
| 2449 | sstat->sstat_state = stcb->asoc.state; |
| 2450 | sstat->sstat_rwnd = stcb->asoc.peers_rwnd; |
| 2451 | sstat->sstat_unackdata = stcb->asoc.sent_queue_cnt; |
| 2452 | /* |
| 2453 | * We can't include chunks that have been passed |
| 2454 | * to the socket layer. Only things in queue. |
| 2455 | */ |
| 2456 | sstat->sstat_penddata = (stcb->asoc.cnt_on_delivery_queue + |
| 2457 | stcb->asoc.cnt_on_reasm_queue + |
| 2458 | stcb->asoc.cnt_on_all_streams); |
| 2459 | |
| 2460 | |
| 2461 | sstat->sstat_instrms = stcb->asoc.streamincnt; |
| 2462 | sstat->sstat_outstrms = stcb->asoc.streamoutcnt; |
| 2463 | sstat->sstat_fragmentation_point = sctp_get_frag_point(stcb, &stcb->asoc); |
| 2464 | memcpy(&sstat->sstat_primary.spinfo_address, |
| 2465 | &stcb->asoc.primary_destination->ro._l_addr, |
| 2466 | ((struct sockaddr *)(&stcb->asoc.primary_destination->ro._l_addr))->sa_len); |
| 2467 | net = stcb->asoc.primary_destination; |
| 2468 | ((struct sockaddr_in *)&sstat->sstat_primary.spinfo_address)->sin_port = stcb->rport; |
| 2469 | /* |
| 2470 | * Again the user can get info from sctp_constants.h |
| 2471 | * for what the state of the network is. |
| 2472 | */ |
| 2473 | sstat->sstat_primary.spinfo_state = net->dest_state & SCTP_REACHABLE_MASK; |
| 2474 | sstat->sstat_primary.spinfo_cwnd = net->cwnd; |
| 2475 | sstat->sstat_primary.spinfo_srtt = net->lastsa; |
| 2476 | sstat->sstat_primary.spinfo_rto = net->RTO; |
| 2477 | sstat->sstat_primary.spinfo_mtu = net->mtu; |
| 2478 | sstat->sstat_primary.spinfo_assoc_id = sctp_get_associd(stcb); |
| 2479 | SCTP_TCB_UNLOCK(stcb); |
| 2480 | m->m_len = sizeof(*sstat); |
| 2481 | } |
| 2482 | break; |
| 2483 | case SCTP_RTOINFO: |
| 2484 | { |
| 2485 | struct sctp_rtoinfo *srto; |
| 2486 | #ifdef SCTP_DEBUG |
| 2487 | if (sctp_debug_on & SCTP_DEBUG_USRREQ1) { |
| 2488 | kprintf("RTO Info\n"); |
| 2489 | } |
| 2490 | #endif /* SCTP_DEBUG */ |
| 2491 | if ((size_t)m->m_len < sizeof(struct sctp_rtoinfo)) { |
| 2492 | error = EINVAL; |
| 2493 | break; |
| 2494 | } |
| 2495 | srto = mtod(m, struct sctp_rtoinfo *); |
| 2496 | if (srto->srto_assoc_id == 0) { |
| 2497 | /* Endpoint only please */ |
| 2498 | SCTP_INP_RLOCK(inp); |
| 2499 | srto->srto_initial = inp->sctp_ep.initial_rto; |
| 2500 | srto->srto_max = inp->sctp_ep.sctp_maxrto; |
| 2501 | srto->srto_min = inp->sctp_ep.sctp_minrto; |
| 2502 | SCTP_INP_RUNLOCK(inp); |
| 2503 | break; |
| 2504 | } |
| 2505 | if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) { |
| 2506 | SCTP_INP_RLOCK(inp); |
| 2507 | stcb = LIST_FIRST(&inp->sctp_asoc_list); |
| 2508 | if (stcb) |
| 2509 | SCTP_TCB_LOCK(stcb); |
| 2510 | SCTP_INP_RUNLOCK(inp); |
| 2511 | } else |
| 2512 | stcb = sctp_findassociation_ep_asocid(inp, srto->srto_assoc_id); |
| 2513 | |
| 2514 | if (stcb == NULL) { |
| 2515 | error = EINVAL; |
| 2516 | break; |
| 2517 | } |
| 2518 | srto->srto_initial = stcb->asoc.initial_rto; |
| 2519 | srto->srto_max = stcb->asoc.maxrto; |
| 2520 | srto->srto_min = stcb->asoc.minrto; |
| 2521 | SCTP_TCB_UNLOCK(stcb); |
| 2522 | m->m_len = sizeof(*srto); |
| 2523 | } |
| 2524 | break; |
| 2525 | case SCTP_ASSOCINFO: |
| 2526 | { |
| 2527 | struct sctp_assocparams *sasoc; |
| 2528 | #ifdef SCTP_DEBUG |
| 2529 | if (sctp_debug_on & SCTP_DEBUG_USRREQ1) { |
| 2530 | kprintf("Associnfo\n"); |
| 2531 | } |
| 2532 | #endif /* SCTP_DEBUG */ |
| 2533 | if ((size_t)m->m_len < sizeof(struct sctp_assocparams)) { |
| 2534 | error = EINVAL; |
| 2535 | break; |
| 2536 | } |
| 2537 | sasoc = mtod(m, struct sctp_assocparams *); |
| 2538 | stcb = NULL; |
| 2539 | |
| 2540 | if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) { |
| 2541 | SCTP_INP_RLOCK(inp); |
| 2542 | stcb = LIST_FIRST(&inp->sctp_asoc_list); |
| 2543 | if (stcb) |
| 2544 | SCTP_TCB_LOCK(stcb); |
| 2545 | SCTP_INP_RUNLOCK(inp); |
| 2546 | } |
| 2547 | if ((sasoc->sasoc_assoc_id) && (stcb == NULL)) { |
| 2548 | stcb = sctp_findassociation_ep_asocid(inp, |
| 2549 | sasoc->sasoc_assoc_id); |
| 2550 | if (stcb == NULL) { |
| 2551 | error = ENOENT; |
| 2552 | break; |
| 2553 | } |
| 2554 | } else { |
| 2555 | stcb = NULL; |
| 2556 | } |
| 2557 | |
| 2558 | if (stcb) { |
| 2559 | sasoc->sasoc_asocmaxrxt = stcb->asoc.max_send_times; |
| 2560 | sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets; |
| 2561 | sasoc->sasoc_peer_rwnd = stcb->asoc.peers_rwnd; |
| 2562 | sasoc->sasoc_local_rwnd = stcb->asoc.my_rwnd; |
| 2563 | sasoc->sasoc_cookie_life = stcb->asoc.cookie_life; |
| 2564 | SCTP_TCB_UNLOCK(stcb); |
| 2565 | } else { |
| 2566 | SCTP_INP_RLOCK(inp); |
| 2567 | sasoc->sasoc_asocmaxrxt = inp->sctp_ep.max_send_times; |
| 2568 | sasoc->sasoc_number_peer_destinations = 0; |
| 2569 | sasoc->sasoc_peer_rwnd = 0; |
| 2570 | sasoc->sasoc_local_rwnd = ssb_space(&inp->sctp_socket->so_rcv); |
| 2571 | sasoc->sasoc_cookie_life = inp->sctp_ep.def_cookie_life; |
| 2572 | SCTP_INP_RUNLOCK(inp); |
| 2573 | } |
| 2574 | m->m_len = sizeof(*sasoc); |
| 2575 | } |
| 2576 | break; |
| 2577 | case SCTP_DEFAULT_SEND_PARAM: |
| 2578 | { |
| 2579 | struct sctp_sndrcvinfo *s_info; |
| 2580 | |
| 2581 | if (m->m_len != sizeof(struct sctp_sndrcvinfo)) { |
| 2582 | error = EINVAL; |
| 2583 | break; |
| 2584 | } |
| 2585 | s_info = mtod(m, struct sctp_sndrcvinfo *); |
| 2586 | if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) { |
| 2587 | SCTP_INP_RLOCK(inp); |
| 2588 | stcb = LIST_FIRST(&inp->sctp_asoc_list); |
| 2589 | if (stcb) |
| 2590 | SCTP_TCB_LOCK(stcb); |
| 2591 | SCTP_INP_RUNLOCK(inp); |
| 2592 | } else |
| 2593 | stcb = sctp_findassociation_ep_asocid(inp, s_info->sinfo_assoc_id); |
| 2594 | |
| 2595 | if (stcb == NULL) { |
| 2596 | error = ENOENT; |
| 2597 | break; |
| 2598 | } |
| 2599 | /* Copy it out */ |
| 2600 | *s_info = stcb->asoc.def_send; |
| 2601 | SCTP_TCB_UNLOCK(stcb); |
| 2602 | m->m_len = sizeof(*s_info); |
| 2603 | } |
| 2604 | case SCTP_INITMSG: |
| 2605 | { |
| 2606 | struct sctp_initmsg *sinit; |
| 2607 | #ifdef SCTP_DEBUG |
| 2608 | if (sctp_debug_on & SCTP_DEBUG_USRREQ1) { |
| 2609 | kprintf("initmsg\n"); |
| 2610 | } |
| 2611 | #endif /* SCTP_DEBUG */ |
| 2612 | if ((size_t)m->m_len < sizeof(struct sctp_initmsg)) { |
| 2613 | error = EINVAL; |
| 2614 | break; |
| 2615 | } |
| 2616 | sinit = mtod(m, struct sctp_initmsg *); |
| 2617 | SCTP_INP_RLOCK(inp); |
| 2618 | sinit->sinit_num_ostreams = inp->sctp_ep.pre_open_stream_count; |
| 2619 | sinit->sinit_max_instreams = inp->sctp_ep.max_open_streams_intome; |
| 2620 | sinit->sinit_max_attempts = inp->sctp_ep.max_init_times; |
| 2621 | sinit->sinit_max_init_timeo = inp->sctp_ep.initial_init_rto_max; |
| 2622 | SCTP_INP_RUNLOCK(inp); |
| 2623 | m->m_len = sizeof(*sinit); |
| 2624 | } |
| 2625 | break; |
| 2626 | case SCTP_PRIMARY_ADDR: |
| 2627 | /* we allow a "get" operation on this */ |
| 2628 | { |
| 2629 | struct sctp_setprim *ssp; |
| 2630 | |
| 2631 | #ifdef SCTP_DEBUG |
| 2632 | if (sctp_debug_on & SCTP_DEBUG_USRREQ1) { |
| 2633 | kprintf("setprimary\n"); |
| 2634 | } |
| 2635 | #endif /* SCTP_DEBUG */ |
| 2636 | if ((size_t)m->m_len < sizeof(struct sctp_setprim)) { |
| 2637 | error = EINVAL; |
| 2638 | break; |
| 2639 | } |
| 2640 | ssp = mtod(m, struct sctp_setprim *); |
| 2641 | if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) { |
| 2642 | SCTP_INP_RLOCK(inp); |
| 2643 | stcb = LIST_FIRST(&inp->sctp_asoc_list); |
| 2644 | if (stcb) |
| 2645 | SCTP_TCB_LOCK(stcb); |
| 2646 | SCTP_INP_RUNLOCK(inp); |
| 2647 | } else { |
| 2648 | stcb = sctp_findassociation_ep_asocid(inp, ssp->ssp_assoc_id); |
| 2649 | if (stcb == NULL) { |
| 2650 | /* one last shot, try it by the address in */ |
| 2651 | struct sctp_nets *net; |
| 2652 | |
| 2653 | SCTP_INP_WLOCK(inp); |
| 2654 | SCTP_INP_INCR_REF(inp); |
| 2655 | SCTP_INP_WUNLOCK(inp); |
| 2656 | stcb = sctp_findassociation_ep_addr(&inp, |
| 2657 | (struct sockaddr *)&ssp->ssp_addr, |
| 2658 | &net, NULL, NULL); |
| 2659 | if (stcb == NULL) { |
| 2660 | SCTP_INP_WLOCK(inp); |
| 2661 | SCTP_INP_DECR_REF(inp); |
| 2662 | SCTP_INP_WUNLOCK(inp); |
| 2663 | } |
| 2664 | } |
| 2665 | if (stcb == NULL) { |
| 2666 | error = EINVAL; |
| 2667 | break; |
| 2668 | } |
| 2669 | } |
| 2670 | /* simply copy out the sockaddr_storage... */ |
| 2671 | memcpy(&ssp->ssp_addr, |
| 2672 | &stcb->asoc.primary_destination->ro._l_addr, |
| 2673 | ((struct sockaddr *)&stcb->asoc.primary_destination->ro._l_addr)->sa_len); |
| 2674 | SCTP_TCB_UNLOCK(stcb); |
| 2675 | m->m_len = sizeof(*ssp); |
| 2676 | } |
| 2677 | break; |
| 2678 | default: |
| 2679 | error = ENOPROTOOPT; |
| 2680 | m->m_len = 0; |
| 2681 | break; |
| 2682 | } /* end switch (sopt->sopt_name) */ |
| 2683 | return (error); |
| 2684 | } |
| 2685 | |
| 2686 | static int |
| 2687 | sctp_optsset(struct socket *so, |
| 2688 | int opt, |
| 2689 | struct mbuf **mp, |
| 2690 | #if (defined(__FreeBSD__) && __FreeBSD_version >= 500000) || defined(__DragonFly__) |
| 2691 | struct thread *p |
| 2692 | #else |
| 2693 | struct proc *p |
| 2694 | #endif |
| 2695 | ) |
| 2696 | { |
| 2697 | int error, *mopt, set_opt; |
| 2698 | struct mbuf *m; |
| 2699 | struct sctp_tcb *stcb = NULL; |
| 2700 | struct sctp_inpcb *inp; |
| 2701 | |
| 2702 | if (mp == NULL) { |
| 2703 | #ifdef SCTP_DEBUG |
| 2704 | if (sctp_debug_on & SCTP_DEBUG_USRREQ1) { |
| 2705 | kprintf("optsset:MP is NULL EINVAL\n"); |
| 2706 | } |
| 2707 | #endif /* SCTP_DEBUG */ |
| 2708 | return (EINVAL); |
| 2709 | } |
| 2710 | m = *mp; |
| 2711 | if (m == NULL) |
| 2712 | return (EINVAL); |
| 2713 | |
| 2714 | inp = (struct sctp_inpcb *)so->so_pcb; |
| 2715 | if (inp == 0) |
| 2716 | return EINVAL; |
| 2717 | |
| 2718 | error = 0; |
| 2719 | switch (opt) { |
| 2720 | case SCTP_NODELAY: |
| 2721 | case SCTP_AUTOCLOSE: |
| 2722 | case SCTP_AUTO_ASCONF: |
| 2723 | case SCTP_DISABLE_FRAGMENTS: |
| 2724 | case SCTP_I_WANT_MAPPED_V4_ADDR: |
| 2725 | /* copy in the option value */ |
| 2726 | if ((size_t)m->m_len < sizeof(int)) { |
| 2727 | error = EINVAL; |
| 2728 | break; |
| 2729 | } |
| 2730 | mopt = mtod(m, int *); |
| 2731 | set_opt = 0; |
| 2732 | if (error) |
| 2733 | break; |
| 2734 | switch (opt) { |
| 2735 | case SCTP_DISABLE_FRAGMENTS: |
| 2736 | set_opt = SCTP_PCB_FLAGS_NO_FRAGMENT; |
| 2737 | break; |
| 2738 | case SCTP_AUTO_ASCONF: |
| 2739 | set_opt = SCTP_PCB_FLAGS_AUTO_ASCONF; |
| 2740 | break; |
| 2741 | |
| 2742 | case SCTP_I_WANT_MAPPED_V4_ADDR: |
| 2743 | if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { |
| 2744 | set_opt = SCTP_PCB_FLAGS_NEEDS_MAPPED_V4; |
| 2745 | } else { |
| 2746 | return (EINVAL); |
| 2747 | } |
| 2748 | break; |
| 2749 | case SCTP_NODELAY: |
| 2750 | set_opt = SCTP_PCB_FLAGS_NODELAY; |
| 2751 | break; |
| 2752 | case SCTP_AUTOCLOSE: |
| 2753 | set_opt = SCTP_PCB_FLAGS_AUTOCLOSE; |
| 2754 | /* |
| 2755 | * The value is in ticks. |
| 2756 | * Note this does not effect old associations, only |
| 2757 | * new ones. |
| 2758 | */ |
| 2759 | inp->sctp_ep.auto_close_time = (*mopt * hz); |
| 2760 | break; |
| 2761 | } |
| 2762 | SCTP_INP_WLOCK(inp); |
| 2763 | if (*mopt != 0) { |
| 2764 | inp->sctp_flags |= set_opt; |
| 2765 | } else { |
| 2766 | inp->sctp_flags &= ~set_opt; |
| 2767 | } |
| 2768 | SCTP_INP_WUNLOCK(inp); |
| 2769 | break; |
| 2770 | case SCTP_MY_PUBLIC_KEY: /* set my public key */ |
| 2771 | case SCTP_SET_AUTH_CHUNKS: /* set the authenticated chunks required */ |
| 2772 | case SCTP_SET_AUTH_SECRET: /* set the actual secret for the endpoint */ |
| 2773 | /* not supported yet and until we refine the draft */ |
| 2774 | error = EOPNOTSUPP; |
| 2775 | break; |
| 2776 | |
| 2777 | case SCTP_CLR_STAT_LOG: |
| 2778 | #ifdef SCTP_STAT_LOGGING |
| 2779 | sctp_clr_stat_log(); |
| 2780 | #else |
| 2781 | error = EOPNOTSUPP; |
| 2782 | #endif |
| 2783 | break; |
| 2784 | case SCTP_DELAYED_ACK_TIME: |
| 2785 | { |
| 2786 | int32_t *tm; |
| 2787 | if ((size_t)m->m_len < sizeof(int32_t)) { |
| 2788 | error = EINVAL; |
| 2789 | break; |
| 2790 | } |
| 2791 | tm = mtod(m, int32_t *); |
| 2792 | |
| 2793 | if ((*tm < 10) || (*tm > 500)) { |
| 2794 | /* can't be smaller than 10ms */ |
| 2795 | /* MUST NOT be larger than 500ms */ |
| 2796 | error = EINVAL; |
| 2797 | break; |
| 2798 | } |
| 2799 | inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV] = MSEC_TO_TICKS(*tm); |
| 2800 | } |
| 2801 | break; |
| 2802 | case SCTP_RESET_STREAMS: |
| 2803 | { |
| 2804 | struct sctp_stream_reset *strrst; |
| 2805 | uint8_t two_way, not_peer; |
| 2806 | |
| 2807 | if ((size_t)m->m_len < sizeof(struct sctp_stream_reset)) { |
| 2808 | error = EINVAL; |
| 2809 | break; |
| 2810 | } |
| 2811 | strrst = mtod(m, struct sctp_stream_reset *); |
| 2812 | |
| 2813 | if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) { |
| 2814 | SCTP_INP_RLOCK(inp); |
| 2815 | stcb = LIST_FIRST(&inp->sctp_asoc_list); |
| 2816 | if (stcb) |
| 2817 | SCTP_TCB_LOCK(stcb); |
| 2818 | SCTP_INP_RUNLOCK(inp); |
| 2819 | } else |
| 2820 | stcb = sctp_findassociation_ep_asocid(inp, strrst->strrst_assoc_id); |
| 2821 | if (stcb == NULL) { |
| 2822 | error = ENOENT; |
| 2823 | break; |
| 2824 | } |
| 2825 | if (stcb->asoc.peer_supports_strreset == 0) { |
| 2826 | /* Peer does not support it, |
| 2827 | * we return protocol not supported since |
| 2828 | * this is true for this feature and this |
| 2829 | * peer, not the socket request in general. |
| 2830 | */ |
| 2831 | error = EPROTONOSUPPORT; |
| 2832 | SCTP_TCB_UNLOCK(stcb); |
| 2833 | break; |
| 2834 | } |
| 2835 | |
| 2836 | /* Having re-thought this code I added as I write the I-D there |
| 2837 | * is NO need for it. The peer, if we are requesting a stream-reset |
| 2838 | * will send a request to us but will itself do what we do, take |
| 2839 | * and copy off the "reset information" we send and queue TSN's |
| 2840 | * larger than the send-next in our response message. Thus they |
| 2841 | * will handle it. |
| 2842 | */ |
| 2843 | /* if (stcb->asoc.sending_seq != (stcb->asoc.last_acked_seq + 1)) {*/ |
| 2844 | /* Must have all sending data ack'd before we |
| 2845 | * start this procedure. This is a bit restrictive |
| 2846 | * and we SHOULD work on changing this so ONLY the |
| 2847 | * streams being RESET get held up. So, a reset-all |
| 2848 | * would require this.. but a reset specific just |
| 2849 | * needs to be sure that the ones being reset have |
| 2850 | * nothing on the send_queue. For now we will |
| 2851 | * skip this more detailed method and do a course |
| 2852 | * way.. i.e. nothing pending ... for future FIX ME! |
| 2853 | */ |
| 2854 | /* error = EBUSY;*/ |
| 2855 | /* break;*/ |
| 2856 | /* }*/ |
| 2857 | |
| 2858 | if (stcb->asoc.stream_reset_outstanding) { |
| 2859 | error = EALREADY; |
| 2860 | SCTP_TCB_UNLOCK(stcb); |
| 2861 | break; |
| 2862 | } |
| 2863 | if (strrst->strrst_flags == SCTP_RESET_LOCAL_RECV) { |
| 2864 | two_way = 0; |
| 2865 | not_peer = 0; |
| 2866 | } else if (strrst->strrst_flags == SCTP_RESET_LOCAL_SEND) { |
| 2867 | two_way = 1; |
| 2868 | not_peer = 1; |
| 2869 | } else if (strrst->strrst_flags == SCTP_RESET_BOTH) { |
| 2870 | two_way = 1; |
| 2871 | not_peer = 0; |
| 2872 | } else { |
| 2873 | error = EINVAL; |
| 2874 | SCTP_TCB_UNLOCK(stcb); |
| 2875 | break; |
| 2876 | } |
| 2877 | sctp_send_str_reset_req(stcb, strrst->strrst_num_streams, |
| 2878 | strrst->strrst_list, two_way, not_peer); |
| 2879 | crit_enter(); |
| 2880 | sctp_chunk_output(inp, stcb, 12); |
| 2881 | SCTP_TCB_UNLOCK(stcb); |
| 2882 | crit_exit(); |
| 2883 | |
| 2884 | } |
| 2885 | break; |
| 2886 | case SCTP_RESET_PEGS: |
| 2887 | memset(sctp_pegs, 0, sizeof(sctp_pegs)); |
| 2888 | error = 0; |
| 2889 | break; |
| 2890 | case SCTP_CONNECT_X: |
| 2891 | if ((size_t)m->m_len < (sizeof(int) + sizeof(struct sockaddr_in))) { |
| 2892 | error = EINVAL; |
| 2893 | break; |
| 2894 | } |
| 2895 | error = sctp_do_connect_x(so, inp, m, p, 0); |
| 2896 | break; |
| 2897 | |
| 2898 | case SCTP_CONNECT_X_DELAYED: |
| 2899 | if ((size_t)m->m_len < (sizeof(int) + sizeof(struct sockaddr_in))) { |
| 2900 | error = EINVAL; |
| 2901 | break; |
| 2902 | } |
| 2903 | error = sctp_do_connect_x(so, inp, m, p, 1); |
| 2904 | break; |
| 2905 | |
| 2906 | case SCTP_CONNECT_X_COMPLETE: |
| 2907 | { |
| 2908 | struct sockaddr *sa; |
| 2909 | struct sctp_nets *net; |
| 2910 | if ((size_t)m->m_len < sizeof(struct sockaddr_in)) { |
| 2911 | error = EINVAL; |
| 2912 | break; |
| 2913 | } |
| 2914 | sa = mtod(m, struct sockaddr *); |
| 2915 | /* find tcb */ |
| 2916 | if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) { |
| 2917 | SCTP_INP_RLOCK(inp); |
| 2918 | stcb = LIST_FIRST(&inp->sctp_asoc_list); |
| 2919 | if (stcb) { |
| 2920 | SCTP_TCB_LOCK(stcb); |
| 2921 | net = sctp_findnet(stcb, sa); |
| 2922 | } |
| 2923 | SCTP_INP_RUNLOCK(inp); |
| 2924 | } else { |
| 2925 | SCTP_INP_WLOCK(inp); |
| 2926 | SCTP_INP_INCR_REF(inp); |
| 2927 | SCTP_INP_WUNLOCK(inp); |
| 2928 | stcb = sctp_findassociation_ep_addr(&inp, sa, &net, NULL, NULL); |
| 2929 | if (stcb == NULL) { |
| 2930 | SCTP_INP_WLOCK(inp); |
| 2931 | SCTP_INP_DECR_REF(inp); |
| 2932 | SCTP_INP_WUNLOCK(inp); |
| 2933 | } |
| 2934 | } |
| 2935 | |
| 2936 | if (stcb == NULL) { |
| 2937 | error = ENOENT; |
| 2938 | break; |
| 2939 | } |
| 2940 | if (stcb->asoc.delayed_connection == 1) { |
| 2941 | stcb->asoc.delayed_connection = 0; |
| 2942 | SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered); |
| 2943 | sctp_timer_stop(SCTP_TIMER_TYPE_INIT, inp, stcb, stcb->asoc.primary_destination); |
| 2944 | sctp_send_initiate(inp, stcb); |
| 2945 | } else { |
| 2946 | /* already expired or did not use delayed connectx */ |
| 2947 | error = EALREADY; |
| 2948 | } |
| 2949 | SCTP_TCB_UNLOCK(stcb); |
| 2950 | } |
| 2951 | break; |
| 2952 | case SCTP_MAXBURST: |
| 2953 | { |
| 2954 | u_int8_t *burst; |
| 2955 | SCTP_INP_WLOCK(inp); |
| 2956 | burst = mtod(m, u_int8_t *); |
| 2957 | if (*burst) { |
| 2958 | inp->sctp_ep.max_burst = *burst; |
| 2959 | } |
| 2960 | SCTP_INP_WUNLOCK(inp); |
| 2961 | } |
| 2962 | break; |
| 2963 | case SCTP_MAXSEG: |
| 2964 | { |
| 2965 | u_int32_t *segsize; |
| 2966 | int ovh; |
| 2967 | if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { |
| 2968 | ovh = SCTP_MED_OVERHEAD; |
| 2969 | } else { |
| 2970 | ovh = SCTP_MED_V4_OVERHEAD; |
| 2971 | } |
| 2972 | segsize = mtod(m, u_int32_t *); |
| 2973 | if (*segsize < 1) { |
| 2974 | error = EINVAL; |
| 2975 | break; |
| 2976 | } |
| 2977 | SCTP_INP_WLOCK(inp); |
| 2978 | inp->sctp_frag_point = (*segsize+ovh); |
| 2979 | if (inp->sctp_frag_point < MHLEN) { |
| 2980 | inp->sctp_frag_point = MHLEN; |
| 2981 | } |
| 2982 | SCTP_INP_WUNLOCK(inp); |
| 2983 | } |
| 2984 | break; |
| 2985 | case SCTP_SET_DEBUG_LEVEL: |
| 2986 | #ifdef SCTP_DEBUG |
| 2987 | { |
| 2988 | u_int32_t *level; |
| 2989 | if ((size_t)m->m_len < sizeof(u_int32_t)) { |
| 2990 | error = EINVAL; |
| 2991 | break; |
| 2992 | } |
| 2993 | level = mtod(m, u_int32_t *); |
| 2994 | error = 0; |
| 2995 | sctp_debug_on = (*level & (SCTP_DEBUG_ALL | |
| 2996 | SCTP_DEBUG_NOISY)); |
| 2997 | kprintf("SETTING DEBUG LEVEL to %x\n", |
| 2998 | (u_int)sctp_debug_on); |
| 2999 | |
| 3000 | } |
| 3001 | #else |
| 3002 | error = EOPNOTSUPP; |
| 3003 | #endif /* SCTP_DEBUG */ |
| 3004 | break; |
| 3005 | case SCTP_EVENTS: |
| 3006 | { |
| 3007 | struct sctp_event_subscribe *events; |
| 3008 | if ((size_t)m->m_len < sizeof(struct sctp_event_subscribe)) { |
| 3009 | error = EINVAL; |
| 3010 | break; |
| 3011 | } |
| 3012 | SCTP_INP_WLOCK(inp); |
| 3013 | events = mtod(m, struct sctp_event_subscribe *); |
| 3014 | if (events->sctp_data_io_event) { |
| 3015 | inp->sctp_flags |= SCTP_PCB_FLAGS_RECVDATAIOEVNT; |
| 3016 | } else { |
| 3017 | inp->sctp_flags &= ~SCTP_PCB_FLAGS_RECVDATAIOEVNT; |
| 3018 | } |
| 3019 | |
| 3020 | if (events->sctp_association_event) { |
| 3021 | inp->sctp_flags |= SCTP_PCB_FLAGS_RECVASSOCEVNT; |
| 3022 | } else { |
| 3023 | inp->sctp_flags &= ~SCTP_PCB_FLAGS_RECVASSOCEVNT; |
| 3024 | } |
| 3025 | |
| 3026 | if (events->sctp_address_event) { |
| 3027 | inp->sctp_flags |= SCTP_PCB_FLAGS_RECVPADDREVNT; |
| 3028 | } else { |
| 3029 | inp->sctp_flags &= ~SCTP_PCB_FLAGS_RECVPADDREVNT; |
| 3030 | } |
| 3031 | |
| 3032 | if (events->sctp_send_failure_event) { |
| 3033 | inp->sctp_flags |= SCTP_PCB_FLAGS_RECVSENDFAILEVNT; |
| 3034 | } else { |
| 3035 | inp->sctp_flags &= ~SCTP_PCB_FLAGS_RECVSENDFAILEVNT; |
| 3036 | } |
| 3037 | |
| 3038 | if (events->sctp_peer_error_event) { |
| 3039 | inp->sctp_flags |= SCTP_PCB_FLAGS_RECVPEERERR; |
| 3040 | } else { |
| 3041 | inp->sctp_flags &= ~SCTP_PCB_FLAGS_RECVPEERERR; |
| 3042 | } |
| 3043 | |
| 3044 | if (events->sctp_shutdown_event) { |
| 3045 | inp->sctp_flags |= SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT; |
| 3046 | } else { |
| 3047 | inp->sctp_flags &= ~SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT; |
| 3048 | } |
| 3049 | |
| 3050 | if (events->sctp_partial_delivery_event) { |
| 3051 | inp->sctp_flags |= SCTP_PCB_FLAGS_PDAPIEVNT; |
| 3052 | } else { |
| 3053 | inp->sctp_flags &= ~SCTP_PCB_FLAGS_PDAPIEVNT; |
| 3054 | } |
| 3055 | |
| 3056 | if (events->sctp_adaption_layer_event) { |
| 3057 | inp->sctp_flags |= SCTP_PCB_FLAGS_ADAPTIONEVNT; |
| 3058 | } else { |
| 3059 | inp->sctp_flags &= ~SCTP_PCB_FLAGS_ADAPTIONEVNT; |
| 3060 | } |
| 3061 | |
| 3062 | if (events->sctp_stream_reset_events) { |
| 3063 | inp->sctp_flags |= SCTP_PCB_FLAGS_STREAM_RESETEVNT; |
| 3064 | } else { |
| 3065 | inp->sctp_flags &= ~SCTP_PCB_FLAGS_STREAM_RESETEVNT; |
| 3066 | } |
| 3067 | SCTP_INP_WUNLOCK(inp); |
| 3068 | } |
| 3069 | break; |
| 3070 | |
| 3071 | case SCTP_ADAPTION_LAYER: |
| 3072 | { |
| 3073 | struct sctp_setadaption *adap_bits; |
| 3074 | if ((size_t)m->m_len < sizeof(struct sctp_setadaption)) { |
| 3075 | error = EINVAL; |
| 3076 | break; |
| 3077 | } |
| 3078 | SCTP_INP_WLOCK(inp); |
| 3079 | adap_bits = mtod(m, struct sctp_setadaption *); |
| 3080 | inp->sctp_ep.adaption_layer_indicator = adap_bits->ssb_adaption_ind; |
| 3081 | SCTP_INP_WUNLOCK(inp); |
| 3082 | } |
| 3083 | break; |
| 3084 | case SCTP_SET_INITIAL_DBG_SEQ: |
| 3085 | { |
| 3086 | u_int32_t *vvv; |
| 3087 | if ((size_t)m->m_len < sizeof(u_int32_t)) { |
| 3088 | error = EINVAL; |
| 3089 | break; |
| 3090 | } |
| 3091 | SCTP_INP_WLOCK(inp); |
| 3092 | vvv = mtod(m, u_int32_t *); |
| 3093 | inp->sctp_ep.initial_sequence_debug = *vvv; |
| 3094 | SCTP_INP_WUNLOCK(inp); |
| 3095 | } |
| 3096 | break; |
| 3097 | case SCTP_DEFAULT_SEND_PARAM: |
| 3098 | { |
| 3099 | struct sctp_sndrcvinfo *s_info; |
| 3100 | |
| 3101 | if (m->m_len != sizeof(struct sctp_sndrcvinfo)) { |
| 3102 | error = EINVAL; |
| 3103 | break; |
| 3104 | } |
| 3105 | s_info = mtod(m, struct sctp_sndrcvinfo *); |
| 3106 | |
| 3107 | if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) { |
| 3108 | SCTP_INP_RLOCK(inp); |
| 3109 | stcb = LIST_FIRST(&inp->sctp_asoc_list); |
| 3110 | if (stcb) |
| 3111 | SCTP_TCB_LOCK(stcb); |
| 3112 | SCTP_INP_RUNLOCK(inp); |
| 3113 | } else |
| 3114 | stcb = sctp_findassociation_ep_asocid(inp, s_info->sinfo_assoc_id); |
| 3115 | |
| 3116 | if (stcb == NULL) { |
| 3117 | error = ENOENT; |
| 3118 | break; |
| 3119 | } |
| 3120 | /* Validate things */ |
| 3121 | if (s_info->sinfo_stream > stcb->asoc.streamoutcnt) { |
| 3122 | SCTP_TCB_UNLOCK(stcb); |
| 3123 | error = EINVAL; |
| 3124 | break; |
| 3125 | } |
| 3126 | /* Mask off the flags that are allowed */ |
| 3127 | s_info->sinfo_flags = (s_info->sinfo_flags & |
| 3128 | (MSG_UNORDERED | MSG_ADDR_OVER | |
| 3129 | MSG_PR_SCTP_TTL | MSG_PR_SCTP_BUF)); |
| 3130 | /* Copy it in */ |
| 3131 | stcb->asoc.def_send = *s_info; |
| 3132 | SCTP_TCB_UNLOCK(stcb); |
| 3133 | } |
| 3134 | break; |
| 3135 | case SCTP_PEER_ADDR_PARAMS: |
| 3136 | { |
| 3137 | struct sctp_paddrparams *paddrp; |
| 3138 | struct sctp_nets *net; |
| 3139 | if ((size_t)m->m_len < sizeof(struct sctp_paddrparams)) { |
| 3140 | error = EINVAL; |
| 3141 | break; |
| 3142 | } |
| 3143 | paddrp = mtod(m, struct sctp_paddrparams *); |
| 3144 | net = NULL; |
| 3145 | if (paddrp->spp_assoc_id) { |
| 3146 | if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) { |
| 3147 | SCTP_INP_RLOCK(inp); |
| 3148 | stcb = LIST_FIRST(&inp->sctp_asoc_list); |
| 3149 | if (stcb) { |
| 3150 | SCTP_TCB_LOCK(stcb); |
| 3151 | net = sctp_findnet(stcb, (struct sockaddr *)&paddrp->spp_address); |
| 3152 | } |
| 3153 | SCTP_INP_RUNLOCK(inp); |
| 3154 | } else |
| 3155 | stcb = sctp_findassociation_ep_asocid(inp, paddrp->spp_assoc_id); |
| 3156 | if (stcb == NULL) { |
| 3157 | error = ENOENT; |
| 3158 | break; |
| 3159 | } |
| 3160 | |
| 3161 | } |
| 3162 | if ((stcb == NULL) && |
| 3163 | ((((struct sockaddr *)&paddrp->spp_address)->sa_family == AF_INET) || |
| 3164 | (((struct sockaddr *)&paddrp->spp_address)->sa_family == AF_INET6))) { |
| 3165 | /* Lookup via address */ |
| 3166 | if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) { |
| 3167 | SCTP_INP_RLOCK(inp); |
| 3168 | stcb = LIST_FIRST(&inp->sctp_asoc_list); |
| 3169 | if (stcb) { |
| 3170 | SCTP_TCB_LOCK(stcb); |
| 3171 | net = sctp_findnet(stcb, |
| 3172 | (struct sockaddr *)&paddrp->spp_address); |
| 3173 | } |
| 3174 | SCTP_INP_RUNLOCK(inp); |
| 3175 | } else { |
| 3176 | SCTP_INP_WLOCK(inp); |
| 3177 | SCTP_INP_INCR_REF(inp); |
| 3178 | SCTP_INP_WUNLOCK(inp); |
| 3179 | stcb = sctp_findassociation_ep_addr(&inp, |
| 3180 | (struct sockaddr *)&paddrp->spp_address, |
| 3181 | &net, NULL, NULL); |
| 3182 | if (stcb == NULL) { |
| 3183 | SCTP_INP_WLOCK(inp); |
| 3184 | SCTP_INP_DECR_REF(inp); |
| 3185 | SCTP_INP_WUNLOCK(inp); |
| 3186 | } |
| 3187 | } |
| 3188 | } else { |
| 3189 | /* Effects the Endpoint */ |
| 3190 | stcb = NULL; |
| 3191 | } |
| 3192 | if (stcb) { |
| 3193 | /* Applies to the specific association */ |
| 3194 | if (paddrp->spp_pathmaxrxt) { |
| 3195 | if (net) { |
| 3196 | if (paddrp->spp_pathmaxrxt) |
| 3197 | net->failure_threshold = paddrp->spp_pathmaxrxt; |
| 3198 | } else { |
| 3199 | if (paddrp->spp_pathmaxrxt) |
| 3200 | stcb->asoc.def_net_failure = paddrp->spp_pathmaxrxt; |
| 3201 | } |
| 3202 | } |
| 3203 | if ((paddrp->spp_hbinterval != 0) && (paddrp->spp_hbinterval != 0xffffffff)) { |
| 3204 | /* Just a set */ |
| 3205 | int old; |
| 3206 | if (net) { |
| 3207 | net->dest_state &= ~SCTP_ADDR_NOHB; |
| 3208 | } else { |
| 3209 | old = stcb->asoc.heart_beat_delay; |
| 3210 | stcb->asoc.heart_beat_delay = paddrp->spp_hbinterval; |
| 3211 | if (old == 0) { |
| 3212 | /* Turn back on the timer */ |
| 3213 | sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net); |
| 3214 | } |
| 3215 | } |
| 3216 | } else if (paddrp->spp_hbinterval == 0xffffffff) { |
| 3217 | /* on demand HB */ |
| 3218 | sctp_send_hb(stcb, 1, net); |
| 3219 | } else { |
| 3220 | if (net == NULL) { |
| 3221 | /* off on association */ |
| 3222 | if (stcb->asoc.heart_beat_delay) { |
| 3223 | int cnt_of_unconf = 0; |
| 3224 | struct sctp_nets *lnet; |
| 3225 | TAILQ_FOREACH(lnet, &stcb->asoc.nets, sctp_next) { |
| 3226 | if (lnet->dest_state & SCTP_ADDR_UNCONFIRMED) { |
| 3227 | cnt_of_unconf++; |
| 3228 | } |
| 3229 | } |
| 3230 | /* stop the timer ONLY if we have no unconfirmed addresses |
| 3231 | */ |
| 3232 | if (cnt_of_unconf == 0) |
| 3233 | sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net); |
| 3234 | } |
| 3235 | stcb->asoc.heart_beat_delay = 0; |
| 3236 | } else { |
| 3237 | net->dest_state |= SCTP_ADDR_NOHB; |
| 3238 | } |
| 3239 | } |
| 3240 | SCTP_TCB_UNLOCK(stcb); |
| 3241 | } else { |
| 3242 | /* Use endpoint defaults */ |
| 3243 | SCTP_INP_WLOCK(inp); |
| 3244 | if (paddrp->spp_pathmaxrxt) |
| 3245 | inp->sctp_ep.def_net_failure = paddrp->spp_pathmaxrxt; |
| 3246 | if (paddrp->spp_hbinterval != SCTP_ISSUE_HB) |
| 3247 | inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = paddrp->spp_hbinterval; |
| 3248 | SCTP_INP_WUNLOCK(inp); |
| 3249 | } |
| 3250 | } |
| 3251 | break; |
| 3252 | case SCTP_RTOINFO: |
| 3253 | { |
| 3254 | struct sctp_rtoinfo *srto; |
| 3255 | if ((size_t)m->m_len < sizeof(struct sctp_rtoinfo)) { |
| 3256 | error = EINVAL; |
| 3257 | break; |
| 3258 | } |
| 3259 | srto = mtod(m, struct sctp_rtoinfo *); |
| 3260 | if (srto->srto_assoc_id == 0) { |
| 3261 | SCTP_INP_WLOCK(inp); |
| 3262 | /* If we have a null asoc, its default for the endpoint */ |
| 3263 | if (srto->srto_initial > 10) |
| 3264 | inp->sctp_ep.initial_rto = srto->srto_initial; |
| 3265 | if (srto->srto_max > 10) |
| 3266 | inp->sctp_ep.sctp_maxrto = srto->srto_max; |
| 3267 | if (srto->srto_min > 10) |
| 3268 | inp->sctp_ep.sctp_minrto = srto->srto_min; |
| 3269 | SCTP_INP_WUNLOCK(inp); |
| 3270 | break; |
| 3271 | } |
| 3272 | if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) { |
| 3273 | SCTP_INP_RLOCK(inp); |
| 3274 | stcb = LIST_FIRST(&inp->sctp_asoc_list); |
| 3275 | if (stcb) |
| 3276 | SCTP_TCB_LOCK(stcb); |
| 3277 | SCTP_INP_RUNLOCK(inp); |
| 3278 | } else |
| 3279 | stcb = sctp_findassociation_ep_asocid(inp, srto->srto_assoc_id); |
| 3280 | if (stcb == NULL) { |
| 3281 | error = EINVAL; |
| 3282 | break; |
| 3283 | } |
| 3284 | /* Set in ms we hope :-) */ |
| 3285 | if (srto->srto_initial > 10) |
| 3286 | stcb->asoc.initial_rto = srto->srto_initial; |
| 3287 | if (srto->srto_max > 10) |
| 3288 | stcb->asoc.maxrto = srto->srto_max; |
| 3289 | if (srto->srto_min > 10) |
| 3290 | stcb->asoc.minrto = srto->srto_min; |
| 3291 | SCTP_TCB_UNLOCK(stcb); |
| 3292 | } |
| 3293 | break; |
| 3294 | case SCTP_ASSOCINFO: |
| 3295 | { |
| 3296 | struct sctp_assocparams *sasoc; |
| 3297 | |
| 3298 | if ((size_t)m->m_len < sizeof(struct sctp_assocparams)) { |
| 3299 | error = EINVAL; |
| 3300 | break; |
| 3301 | } |
| 3302 | sasoc = mtod(m, struct sctp_assocparams *); |
| 3303 | if (sasoc->sasoc_assoc_id) { |
| 3304 | if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) { |
| 3305 | SCTP_INP_RLOCK(inp); |
| 3306 | stcb = LIST_FIRST(&inp->sctp_asoc_list); |
| 3307 | if (stcb) |
| 3308 | SCTP_TCB_LOCK(stcb); |
| 3309 | SCTP_INP_RUNLOCK(inp); |
| 3310 | } else |
| 3311 | stcb = sctp_findassociation_ep_asocid(inp, |
| 3312 | sasoc->sasoc_assoc_id); |
| 3313 | if (stcb == NULL) { |
| 3314 | error = ENOENT; |
| 3315 | break; |
| 3316 | } |
| 3317 | |
| 3318 | } else { |
| 3319 | stcb = NULL; |
| 3320 | } |
| 3321 | if (stcb) { |
| 3322 | if (sasoc->sasoc_asocmaxrxt) |
| 3323 | stcb->asoc.max_send_times = sasoc->sasoc_asocmaxrxt; |
| 3324 | sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets; |
| 3325 | sasoc->sasoc_peer_rwnd = 0; |
| 3326 | sasoc->sasoc_local_rwnd = 0; |
| 3327 | if (stcb->asoc.cookie_life) |
| 3328 | stcb->asoc.cookie_life = sasoc->sasoc_cookie_life; |
| 3329 | SCTP_TCB_UNLOCK(stcb); |
| 3330 | } else { |
| 3331 | SCTP_INP_WLOCK(inp); |
| 3332 | if (sasoc->sasoc_asocmaxrxt) |
| 3333 | inp->sctp_ep.max_send_times = sasoc->sasoc_asocmaxrxt; |
| 3334 | sasoc->sasoc_number_peer_destinations = 0; |
| 3335 | sasoc->sasoc_peer_rwnd = 0; |
| 3336 | sasoc->sasoc_local_rwnd = 0; |
| 3337 | if (sasoc->sasoc_cookie_life) |
| 3338 | inp->sctp_ep.def_cookie_life = sasoc->sasoc_cookie_life; |
| 3339 | SCTP_INP_WUNLOCK(inp); |
| 3340 | } |
| 3341 | } |
| 3342 | break; |
| 3343 | case SCTP_INITMSG: |
| 3344 | { |
| 3345 | struct sctp_initmsg *sinit; |
| 3346 | |
| 3347 | if ((size_t)m->m_len < sizeof(struct sctp_initmsg)) { |
| 3348 | error = EINVAL; |
| 3349 | break; |
| 3350 | } |
| 3351 | sinit = mtod(m, struct sctp_initmsg *); |
| 3352 | SCTP_INP_WLOCK(inp); |
| 3353 | if (sinit->sinit_num_ostreams) |
| 3354 | inp->sctp_ep.pre_open_stream_count = sinit->sinit_num_ostreams; |
| 3355 | |
| 3356 | if (sinit->sinit_max_instreams) |
| 3357 | inp->sctp_ep.max_open_streams_intome = sinit->sinit_max_instreams; |
| 3358 | |
| 3359 | if (sinit->sinit_max_attempts) |
| 3360 | inp->sctp_ep.max_init_times = sinit->sinit_max_attempts; |
| 3361 | |
| 3362 | if (sinit->sinit_max_init_timeo > 10) |
| 3363 | /* We must be at least a 100ms (we set in ticks) */ |
| 3364 | inp->sctp_ep.initial_init_rto_max = sinit->sinit_max_init_timeo; |
| 3365 | SCTP_INP_WUNLOCK(inp); |
| 3366 | } |
| 3367 | break; |
| 3368 | case SCTP_PRIMARY_ADDR: |
| 3369 | { |
| 3370 | struct sctp_setprim *spa; |
| 3371 | struct sctp_nets *net, *lnet; |
| 3372 | if ((size_t)m->m_len < sizeof(struct sctp_setprim)) { |
| 3373 | error = EINVAL; |
| 3374 | break; |
| 3375 | } |
| 3376 | spa = mtod(m, struct sctp_setprim *); |
| 3377 | |
| 3378 | if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) { |
| 3379 | SCTP_INP_RLOCK(inp); |
| 3380 | stcb = LIST_FIRST(&inp->sctp_asoc_list); |
| 3381 | if (stcb) { |
| 3382 | SCTP_TCB_LOCK(stcb); |
| 3383 | } else { |
| 3384 | error = EINVAL; |
| 3385 | break; |
| 3386 | } |
| 3387 | SCTP_INP_RUNLOCK(inp); |
| 3388 | } else |
| 3389 | stcb = sctp_findassociation_ep_asocid(inp, spa->ssp_assoc_id); |
| 3390 | if (stcb == NULL) { |
| 3391 | /* One last shot */ |
| 3392 | SCTP_INP_WLOCK(inp); |
| 3393 | SCTP_INP_INCR_REF(inp); |
| 3394 | SCTP_INP_WUNLOCK(inp); |
| 3395 | stcb = sctp_findassociation_ep_addr(&inp, |
| 3396 | (struct sockaddr *)&spa->ssp_addr, |
| 3397 | &net, NULL, NULL); |
| 3398 | if (stcb == NULL) { |
| 3399 | SCTP_INP_WLOCK(inp); |
| 3400 | SCTP_INP_DECR_REF(inp); |
| 3401 | SCTP_INP_WUNLOCK(inp); |
| 3402 | error = EINVAL; |
| 3403 | break; |
| 3404 | } |
| 3405 | } else { |
| 3406 | /* find the net, associd or connected lookup type */ |
| 3407 | net = sctp_findnet(stcb, (struct sockaddr *)&spa->ssp_addr); |
| 3408 | if (net == NULL) { |
| 3409 | SCTP_TCB_UNLOCK(stcb); |
| 3410 | error = EINVAL; |
| 3411 | break; |
| 3412 | } |
| 3413 | } |
| 3414 | if ((net != stcb->asoc.primary_destination) && |
| 3415 | (!(net->dest_state & SCTP_ADDR_UNCONFIRMED))) { |
| 3416 | /* Ok we need to set it */ |
| 3417 | lnet = stcb->asoc.primary_destination; |
| 3418 | lnet->next_tsn_at_change = net->next_tsn_at_change = stcb->asoc.sending_seq; |
| 3419 | if (sctp_set_primary_addr(stcb, |
| 3420 | NULL, |
| 3421 | net) == 0) { |
| 3422 | if (net->dest_state & SCTP_ADDR_SWITCH_PRIMARY) { |
| 3423 | net->dest_state |= SCTP_ADDR_DOUBLE_SWITCH; |
| 3424 | } |
| 3425 | net->dest_state |= SCTP_ADDR_SWITCH_PRIMARY; |
| 3426 | } |
| 3427 | } |
| 3428 | SCTP_TCB_UNLOCK(stcb); |
| 3429 | } |
| 3430 | break; |
| 3431 | |
| 3432 | case SCTP_SET_PEER_PRIMARY_ADDR: |
| 3433 | { |
| 3434 | struct sctp_setpeerprim *sspp; |
| 3435 | if ((size_t)m->m_len < sizeof(struct sctp_setpeerprim)) { |
| 3436 | error = EINVAL; |
| 3437 | break; |
| 3438 | } |
| 3439 | sspp = mtod(m, struct sctp_setpeerprim *); |
| 3440 | |
| 3441 | |
| 3442 | if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) { |
| 3443 | SCTP_INP_RLOCK(inp); |
| 3444 | stcb = LIST_FIRST(&inp->sctp_asoc_list); |
| 3445 | if (stcb) |
| 3446 | SCTP_TCB_UNLOCK(stcb); |
| 3447 | SCTP_INP_RUNLOCK(inp); |
| 3448 | } else |
| 3449 | stcb = sctp_findassociation_ep_asocid(inp, sspp->sspp_assoc_id); |
| 3450 | if (stcb == NULL) { |
| 3451 | error = EINVAL; |
| 3452 | break; |
| 3453 | } |
| 3454 | if (sctp_set_primary_ip_address_sa(stcb, (struct sockaddr *)&sspp->sspp_addr) != 0) { |
| 3455 | error = EINVAL; |
| 3456 | } |
| 3457 | SCTP_TCB_UNLOCK(stcb); |
| 3458 | } |
| 3459 | break; |
| 3460 | case SCTP_BINDX_ADD_ADDR: |
| 3461 | { |
| 3462 | struct sctp_getaddresses *addrs; |
| 3463 | struct sockaddr *addr_touse; |
| 3464 | struct sockaddr_in sin; |
| 3465 | /* see if we're bound all already! */ |
| 3466 | if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) { |
| 3467 | error = EINVAL; |
| 3468 | break; |
| 3469 | } |
| 3470 | if ((size_t)m->m_len < sizeof(struct sctp_getaddresses)) { |
| 3471 | error = EINVAL; |
| 3472 | break; |
| 3473 | } |
| 3474 | addrs = mtod(m, struct sctp_getaddresses *); |
| 3475 | addr_touse = addrs->addr; |
| 3476 | if (addrs->addr->sa_family == AF_INET6) { |
| 3477 | struct sockaddr_in6 *sin6; |
| 3478 | sin6 = (struct sockaddr_in6 *)addr_touse; |
| 3479 | if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) { |
| 3480 | in6_sin6_2_sin(&sin, sin6); |
| 3481 | addr_touse = (struct sockaddr *)&sin; |
| 3482 | } |
| 3483 | } |
| 3484 | if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) { |
| 3485 | if (p == NULL) { |
| 3486 | /* Can't get proc for Net/Open BSD */ |
| 3487 | error = EINVAL; |
| 3488 | break; |
| 3489 | } |
| 3490 | error = sctp_inpcb_bind(so, addr_touse, p); |
| 3491 | break; |
| 3492 | } |
| 3493 | /* No locks required here since bind and mgmt_ep_sa all |
| 3494 | * do their own locking. If we do something for the FIX: |
| 3495 | * below we may need to lock in that case. |
| 3496 | */ |
| 3497 | if (addrs->sget_assoc_id == 0) { |
| 3498 | /* add the address */ |
| 3499 | struct sctp_inpcb *lep; |
| 3500 | ((struct sockaddr_in *)addr_touse)->sin_port = inp->sctp_lport; |
| 3501 | lep = sctp_pcb_findep(addr_touse, 1, 0); |
| 3502 | if (lep != NULL) { |
| 3503 | /* We must decrement the refcount |
| 3504 | * since we have the ep already and |
| 3505 | * are binding. No remove going on |
| 3506 | * here. |
| 3507 | */ |
| 3508 | SCTP_INP_WLOCK(inp); |
| 3509 | SCTP_INP_DECR_REF(inp); |
| 3510 | SCTP_INP_WUNLOCK(inp); |
| 3511 | } |
| 3512 | if (lep == inp) { |
| 3513 | /* already bound to it.. ok */ |
| 3514 | break; |
| 3515 | } else if (lep == NULL) { |
| 3516 | ((struct sockaddr_in *)addr_touse)->sin_port = 0; |
| 3517 | error = sctp_addr_mgmt_ep_sa(inp, addr_touse, |
| 3518 | SCTP_ADD_IP_ADDRESS); |
| 3519 | } else { |
| 3520 | error = EADDRNOTAVAIL; |
| 3521 | } |
| 3522 | if (error) |
| 3523 | break; |
| 3524 | |
| 3525 | } else { |
| 3526 | /* FIX: decide whether we allow assoc based bindx */ |
| 3527 | } |
| 3528 | } |
| 3529 | break; |
| 3530 | case SCTP_BINDX_REM_ADDR: |
| 3531 | { |
| 3532 | struct sctp_getaddresses *addrs; |
| 3533 | struct sockaddr *addr_touse; |
| 3534 | struct sockaddr_in sin; |
| 3535 | /* see if we're bound all already! */ |
| 3536 | if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) { |
| 3537 | error = EINVAL; |
| 3538 | break; |
| 3539 | } |
| 3540 | if ((size_t)m->m_len < sizeof(struct sctp_getaddresses)) { |
| 3541 | error = EINVAL; |
| 3542 | break; |
| 3543 | } |
| 3544 | addrs = mtod(m, struct sctp_getaddresses *); |
| 3545 | addr_touse = addrs->addr; |
| 3546 | if (addrs->addr->sa_family == AF_INET6) { |
| 3547 | struct sockaddr_in6 *sin6; |
| 3548 | sin6 = (struct sockaddr_in6 *)addr_touse; |
| 3549 | if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) { |
| 3550 | in6_sin6_2_sin(&sin, sin6); |
| 3551 | addr_touse = (struct sockaddr *)&sin; |
| 3552 | } |
| 3553 | } |
| 3554 | /* No lock required mgmt_ep_sa does its own locking. If |
| 3555 | * the FIX: below is ever changed we may need to |
| 3556 | * lock before calling association level binding. |
| 3557 | */ |
| 3558 | if (addrs->sget_assoc_id == 0) { |
| 3559 | /* delete the address */ |
| 3560 | sctp_addr_mgmt_ep_sa(inp, addr_touse, |
| 3561 | SCTP_DEL_IP_ADDRESS); |
| 3562 | } else { |
| 3563 | /* FIX: decide whether we allow assoc based bindx */ |
| 3564 | } |
| 3565 | } |
| 3566 | break; |
| 3567 | default: |
| 3568 | error = ENOPROTOOPT; |
| 3569 | break; |
| 3570 | } /* end switch (opt) */ |
| 3571 | return (error); |
| 3572 | } |
| 3573 | |
| 3574 | |
| 3575 | #if defined(__FreeBSD__) || defined(__APPLE__) || defined(__DragonFly__) |
| 3576 | int |
| 3577 | sctp_ctloutput(struct socket *so, struct sockopt *sopt) |
| 3578 | { |
| 3579 | struct mbuf *m = NULL; |
| 3580 | struct sctp_inpcb *inp; |
| 3581 | int error; |
| 3582 | |
| 3583 | inp = (struct sctp_inpcb *)so->so_pcb; |
| 3584 | crit_enter(); |
| 3585 | if (inp == 0) { |
| 3586 | crit_exit(); |
| 3587 | /* I made the same as TCP since we are not setup? */ |
| 3588 | return (ECONNRESET); |
| 3589 | } |
| 3590 | if (sopt->sopt_level != IPPROTO_SCTP) { |
| 3591 | /* wrong proto level... send back up to IP */ |
| 3592 | #ifdef INET6 |
| 3593 | if (INP_CHECK_SOCKAF(so, AF_INET6)) |
| 3594 | error = ip6_ctloutput(so, sopt); |
| 3595 | else |
| 3596 | #endif /* INET6 */ |
| 3597 | error = ip_ctloutput(so, sopt); |
| 3598 | crit_exit(); |
| 3599 | return (error); |
| 3600 | } |
| 3601 | if (sopt->sopt_valsize > MCLBYTES) { |
| 3602 | /* |
| 3603 | * Restrict us down to a cluster size, that's all we can |
| 3604 | * pass either way... |
| 3605 | */ |
| 3606 | sopt->sopt_valsize = MCLBYTES; |
| 3607 | } |
| 3608 | if (sopt->sopt_valsize) { |
| 3609 | |
| 3610 | m = m_get(MB_WAIT, MT_DATA); |
| 3611 | if (sopt->sopt_valsize > MLEN) { |
| 3612 | MCLGET(m, MB_DONTWAIT); |
| 3613 | if ((m->m_flags & M_EXT) == 0) { |
| 3614 | sctp_m_freem(m); |
| 3615 | crit_exit(); |
| 3616 | return (ENOBUFS); |
| 3617 | } |
| 3618 | } |
| 3619 | error = sooptcopyin(sopt, mtod(m, caddr_t), sopt->sopt_valsize, |
| 3620 | sopt->sopt_valsize); |
| 3621 | if (error) { |
| 3622 | m_free(m); |
| 3623 | goto out; |
| 3624 | } |
| 3625 | m->m_len = sopt->sopt_valsize; |
| 3626 | } |
| 3627 | if (sopt->sopt_dir == SOPT_SET) { |
| 3628 | #if (defined(__FreeBSD__) && __FreeBSD_version >= 500000) || defined(__DragonFly__) |
| 3629 | error = sctp_optsset(so, sopt->sopt_name, &m, sopt->sopt_td); |
| 3630 | #else |
| 3631 | error = sctp_optsset(so, sopt->sopt_name, &m, sopt->sopt_p); |
| 3632 | #endif |
| 3633 | } else if (sopt->sopt_dir == SOPT_GET) { |
| 3634 | #if (defined (__FreeBSD__) && __FreeBSD_version >= 500000) || defined(__DragonFly__) |
| 3635 | error = sctp_optsget(so, sopt->sopt_name, &m, sopt->sopt_td); |
| 3636 | #else |
| 3637 | error = sctp_optsget(so, sopt->sopt_name, &m, sopt->sopt_p); |
| 3638 | #endif |
| 3639 | } else { |
| 3640 | error = EINVAL; |
| 3641 | } |
| 3642 | if ( (error == 0) && (m != NULL)) { |
| 3643 | error = sooptcopyout(sopt, mtod(m, caddr_t), m->m_len); |
| 3644 | sctp_m_freem(m); |
| 3645 | } else if (m != NULL) { |
| 3646 | sctp_m_freem(m); |
| 3647 | } |
| 3648 | out: |
| 3649 | crit_exit(); |
| 3650 | return (error); |
| 3651 | } |
| 3652 | |
| 3653 | #else |
| 3654 | /* NetBSD and OpenBSD */ |
| 3655 | int |
| 3656 | sctp_ctloutput(int op, struct socket *so, int level, int optname, |
| 3657 | struct mbuf **mp) |
| 3658 | { |
| 3659 | int s, error; |
| 3660 | struct inpcb *inp; |
| 3661 | #ifdef INET6 |
| 3662 | struct in6pcb *in6p; |
| 3663 | #endif |
| 3664 | int family; /* family of the socket */ |
| 3665 | |
| 3666 | family = so->so_proto->pr_domain->dom_family; |
| 3667 | error = 0; |
| 3668 | crit_exit(); |
| 3669 | switch (family) { |
| 3670 | case PF_INET: |
| 3671 | inp = sotoinpcb(so); |
| 3672 | #ifdef INET6 |
| 3673 | in6p = NULL; |
| 3674 | #endif |
| 3675 | break; |
| 3676 | #ifdef INET6 |
| 3677 | case PF_INET6: |
| 3678 | inp = NULL; |
| 3679 | in6p = sotoin6pcb(so); |
| 3680 | break; |
| 3681 | #endif |
| 3682 | default: |
| 3683 | crit_exit(); |
| 3684 | return EAFNOSUPPORT; |
| 3685 | } |
| 3686 | #ifndef INET6 |
| 3687 | if (inp == NULL) |
| 3688 | #else |
| 3689 | if (inp == NULL && in6p == NULL) |
| 3690 | #endif |
| 3691 | { |
| 3692 | crit_exit(); |
| 3693 | if (op == PRCO_SETOPT && *mp) |
| 3694 | m_free(*mp); |
| 3695 | return (ECONNRESET); |
| 3696 | } |
| 3697 | if (level != IPPROTO_SCTP) { |
| 3698 | switch (family) { |
| 3699 | case PF_INET: |
| 3700 | error = ip_ctloutput(op, so, level, optname, mp); |
| 3701 | break; |
| 3702 | #ifdef INET6 |
| 3703 | case PF_INET6: |
| 3704 | error = ip6_ctloutput(op, so, level, optname, mp); |
| 3705 | break; |
| 3706 | #endif |
| 3707 | } |
| 3708 | crit_exit(); |
| 3709 | return (error); |
| 3710 | } |
| 3711 | /* Ok if we reach here it is a SCTP option we hope */ |
| 3712 | if (op == PRCO_SETOPT) { |
| 3713 | error = sctp_optsset(so, optname, mp, NULL); |
| 3714 | if (*mp) |
| 3715 | m_free(*mp); |
| 3716 | } else if (op == PRCO_GETOPT) { |
| 3717 | error = sctp_optsget(so, optname, mp, NULL); |
| 3718 | } else { |
| 3719 | error = EINVAL; |
| 3720 | } |
| 3721 | crit_exit(); |
| 3722 | return (error); |
| 3723 | } |
| 3724 | |
| 3725 | #endif |
| 3726 | |
| 3727 | static int |
| 3728 | #if (defined(__FreeBSD__) && __FreeBSD_version >= 500000) || defined(__DragonFly__) |
| 3729 | sctp_connect(struct socket *so, struct sockaddr *addr, struct thread *p) |
| 3730 | { |
| 3731 | #else |
| 3732 | #if defined(__FreeBSD__) || defined(__APPLE__) |
| 3733 | sctp_connect(struct socket *so, struct sockaddr *addr, struct proc *p) |
| 3734 | { |
| 3735 | #else |
| 3736 | sctp_connect(struct socket *so, struct mbuf *nam, struct proc *p) |
| 3737 | { |
| 3738 | struct sockaddr *addr = mtod(nam, struct sockaddr *); |
| 3739 | #endif |
| 3740 | #endif |
| 3741 | int error = 0; |
| 3742 | struct sctp_inpcb *inp; |
| 3743 | struct sctp_tcb *stcb; |
| 3744 | |
| 3745 | #ifdef SCTP_DEBUG |
| 3746 | if (sctp_debug_on & SCTP_DEBUG_PCB1) { |
| 3747 | kprintf("Connect called in SCTP to "); |
| 3748 | sctp_print_address(addr); |
| 3749 | kprintf("Port %d\n", ntohs(((struct sockaddr_in *)addr)->sin_port)); |
| 3750 | } |
| 3751 | #endif /* SCTP_DEBUG */ |
| 3752 | crit_enter(); |
| 3753 | inp = (struct sctp_inpcb *)so->so_pcb; |
| 3754 | if (inp == 0) { |
| 3755 | crit_exit(); |
| 3756 | /* I made the same as TCP since we are not setup? */ |
| 3757 | return (ECONNRESET); |
| 3758 | } |
| 3759 | SCTP_ASOC_CREATE_LOCK(inp); |
| 3760 | SCTP_INP_WLOCK(inp); |
| 3761 | if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) || |
| 3762 | (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) { |
| 3763 | /* Should I really unlock ? */ |
| 3764 | SCTP_INP_WUNLOCK(inp); |
| 3765 | SCTP_ASOC_CREATE_UNLOCK(inp); |
| 3766 | crit_exit(); |
| 3767 | return (EFAULT); |
| 3768 | } |
| 3769 | #ifdef INET6 |
| 3770 | if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) && |
| 3771 | (addr->sa_family == AF_INET6)) { |
| 3772 | SCTP_INP_WUNLOCK(inp); |
| 3773 | SCTP_ASOC_CREATE_UNLOCK(inp); |
| 3774 | crit_exit(); |
| 3775 | return (EINVAL); |
| 3776 | } |
| 3777 | #endif /* INET6 */ |
| 3778 | if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == |
| 3779 | SCTP_PCB_FLAGS_UNBOUND) { |
| 3780 | /* Bind a ephemeral port */ |
| 3781 | SCTP_INP_WUNLOCK(inp); |
| 3782 | error = sctp_inpcb_bind(so, NULL, p); |
| 3783 | if (error) { |
| 3784 | SCTP_ASOC_CREATE_UNLOCK(inp); |
| 3785 | crit_exit(); |
| 3786 | return (error); |
| 3787 | } |
| 3788 | SCTP_INP_WLOCK(inp); |
| 3789 | } |
| 3790 | /* Now do we connect? */ |
| 3791 | if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) && |
| 3792 | (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) { |
| 3793 | /* We are already connected AND the TCP model */ |
| 3794 | crit_exit(); |
| 3795 | SCTP_INP_WUNLOCK(inp); |
| 3796 | SCTP_ASOC_CREATE_UNLOCK(inp); |
| 3797 | return (EADDRINUSE); |
| 3798 | } |
| 3799 | if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) { |
| 3800 | stcb = LIST_FIRST(&inp->sctp_asoc_list); |
| 3801 | if (stcb) |
| 3802 | SCTP_TCB_UNLOCK(stcb); |
| 3803 | SCTP_INP_WUNLOCK(inp); |
| 3804 | } else { |
| 3805 | SCTP_INP_INCR_REF(inp); |
| 3806 | SCTP_INP_WUNLOCK(inp); |
| 3807 | stcb = sctp_findassociation_ep_addr(&inp, addr, NULL, NULL, NULL); |
| 3808 | if (stcb == NULL) { |
| 3809 | SCTP_INP_WLOCK(inp); |
| 3810 | SCTP_INP_DECR_REF(inp); |
| 3811 | SCTP_INP_WUNLOCK(inp); |
| 3812 | } |
| 3813 | } |
| 3814 | if (stcb != NULL) { |
| 3815 | /* Already have or am bring up an association */ |
| 3816 | SCTP_ASOC_CREATE_UNLOCK(inp); |
| 3817 | SCTP_TCB_UNLOCK(stcb); |
| 3818 | crit_exit(); |
| 3819 | return (EALREADY); |
| 3820 | } |
| 3821 | /* We are GOOD to go */ |
| 3822 | stcb = sctp_aloc_assoc(inp, addr, 1, &error, 0); |
| 3823 | if (stcb == NULL) { |
| 3824 | /* Gak! no memory */ |
| 3825 | crit_exit(); |
| 3826 | return (error); |
| 3827 | } |
| 3828 | if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) { |
| 3829 | stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED; |
| 3830 | /* Set the connected flag so we can queue data */ |
| 3831 | soisconnecting(so); |
| 3832 | } |
| 3833 | stcb->asoc.state = SCTP_STATE_COOKIE_WAIT; |
| 3834 | SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered); |
| 3835 | sctp_send_initiate(inp, stcb); |
| 3836 | SCTP_ASOC_CREATE_UNLOCK(inp); |
| 3837 | SCTP_TCB_UNLOCK(stcb); |
| 3838 | crit_exit(); |
| 3839 | return error; |
| 3840 | } |
| 3841 | |
| 3842 | int |
| 3843 | sctp_usr_recvd(struct socket *so, int flags) |
| 3844 | { |
| 3845 | struct sctp_socket_q_list *sq=NULL; |
| 3846 | /* |
| 3847 | * The user has received some data, we may be able to stuff more |
| 3848 | * up the socket. And we need to possibly update the rwnd. |
| 3849 | */ |
| 3850 | struct sctp_inpcb *inp; |
| 3851 | struct sctp_tcb *stcb=NULL; |
| 3852 | |
| 3853 | inp = (struct sctp_inpcb *)so->so_pcb; |
| 3854 | #ifdef SCTP_DEBUG |
| 3855 | if (sctp_debug_on & SCTP_DEBUG_USRREQ2) |
| 3856 | kprintf("Read for so:%x inp:%x Flags:%x\n", |
| 3857 | (u_int)so, (u_int)inp, (u_int)flags); |
| 3858 | #endif |
| 3859 | |
| 3860 | if (inp == 0) { |
| 3861 | /* I made the same as TCP since we are not setup? */ |
| 3862 | #ifdef SCTP_DEBUG |
| 3863 | if (sctp_debug_on & SCTP_DEBUG_USRREQ2) |
| 3864 | kprintf("Nope, connection reset\n"); |
| 3865 | #endif |
| 3866 | return (ECONNRESET); |
| 3867 | } |
| 3868 | crit_enter(); |
| 3869 | /* |
| 3870 | * Grab the first one on the list. It will re-insert itself if |
| 3871 | * it runs out of room |
| 3872 | */ |
| 3873 | SCTP_INP_WLOCK(inp); |
| 3874 | if ((flags & MSG_EOR) && ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) == 0) |
| 3875 | && ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) == 0)) { |
| 3876 | /* Ok the other part of our grubby tracking |
| 3877 | * stuff for our horrible layer violation that |
| 3878 | * the tsvwg thinks is ok for sctp_peeloff.. gak! |
| 3879 | * We must update the next vtag pending on the |
| 3880 | * socket buffer (if any). |
| 3881 | */ |
| 3882 | inp->sctp_vtag_first = sctp_get_first_vtag_from_sb(so); |
| 3883 | sq = TAILQ_FIRST(&inp->sctp_queue_list); |
| 3884 | if (sq) { |
| 3885 | stcb = sq->tcb; |
| 3886 | } else { |
| 3887 | stcb = NULL; |
| 3888 | } |
| 3889 | } else { |
| 3890 | stcb = LIST_FIRST(&inp->sctp_asoc_list); |
| 3891 | } |
| 3892 | if (stcb) |
| 3893 | SCTP_TCB_LOCK(stcb); |
| 3894 | if (stcb) { |
| 3895 | long incr; |
| 3896 | /* all code in normal stcb path assumes |
| 3897 | * that you have a tcb_lock only. Thus |
| 3898 | * we must release the inp write lock. |
| 3899 | */ |
| 3900 | if (flags & MSG_EOR) { |
| 3901 | if (((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) == 0) |
| 3902 | && ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) == 0)) { |
| 3903 | stcb = sctp_remove_from_socket_q(inp); |
| 3904 | } |
| 3905 | #ifdef SCTP_DEBUG |
| 3906 | if (sctp_debug_on & SCTP_DEBUG_USRREQ2) |
| 3907 | kprintf("remove from socket queue for inp:%x tcbret:%x\n", |
| 3908 | (u_int)inp, (u_int)stcb); |
| 3909 | #endif |
| 3910 | |
| 3911 | stcb->asoc.my_rwnd_control_len = sctp_sbspace_sub(stcb->asoc.my_rwnd_control_len, |
| 3912 | sizeof(struct mbuf)); |
| 3913 | if (inp->sctp_flags & SCTP_PCB_FLAGS_RECVDATAIOEVNT) { |
| 3914 | stcb->asoc.my_rwnd_control_len = sctp_sbspace_sub(stcb->asoc.my_rwnd_control_len, |
| 3915 | CMSG_LEN(sizeof(struct sctp_sndrcvinfo))); |
| 3916 | } |
| 3917 | } |
| 3918 | if ((TAILQ_EMPTY(&stcb->asoc.delivery_queue) == 0) || |
| 3919 | (TAILQ_EMPTY(&stcb->asoc.reasmqueue) == 0)) { |
| 3920 | /* Deliver if there is something to be delivered */ |
| 3921 | sctp_service_queues(stcb, &stcb->asoc, 1); |
| 3922 | } |
| 3923 | sctp_set_rwnd(stcb, &stcb->asoc); |
| 3924 | /* if we increase by 1 or more MTU's (smallest MTUs of all |
| 3925 | * nets) we send a window update sack |
| 3926 | */ |
| 3927 | incr = stcb->asoc.my_rwnd - stcb->asoc.my_last_reported_rwnd; |
| 3928 | if (incr < 0) { |
| 3929 | incr = 0; |
| 3930 | } |
| 3931 | if (((uint32_t)incr >= (stcb->asoc.smallest_mtu * SCTP_SEG_TO_RWND_UPD)) || |
| 3932 | ((((uint32_t)incr)*SCTP_SCALE_OF_RWND_TO_UPD) >= so->so_rcv.ssb_hiwat)) { |
| 3933 | if (callout_pending(&stcb->asoc.dack_timer.timer)) { |
| 3934 | /* If the timer is up, stop it */ |
| 3935 | sctp_timer_stop(SCTP_TIMER_TYPE_RECV, |
| 3936 | stcb->sctp_ep, stcb, NULL); |
| 3937 | } |
| 3938 | /* Send the sack, with the new rwnd */ |
| 3939 | sctp_send_sack(stcb); |
| 3940 | /* Now do the output */ |
| 3941 | sctp_chunk_output(inp, stcb, 10); |
| 3942 | } |
| 3943 | } else { |
| 3944 | if ((( sq ) && (flags & MSG_EOR) && ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) == 0)) |
| 3945 | && ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) == 0)) { |
| 3946 | stcb = sctp_remove_from_socket_q(inp); |
| 3947 | } |
| 3948 | } |
| 3949 | SOCKBUF_LOCK(&so->so_rcv); |
| 3950 | if (( so->so_rcv.ssb_mb == NULL ) && |
| 3951 | (TAILQ_EMPTY(&inp->sctp_queue_list) == 0)) { |
| 3952 | int sq_cnt=0; |
| 3953 | #ifdef SCTP_DEBUG |
| 3954 | if (sctp_debug_on & SCTP_DEBUG_USRREQ2) |
| 3955 | kprintf("Something off, inp:%x so->so_rcv->ssb_mb is empty and sockq is not.. cleaning\n", |
| 3956 | (u_int)inp); |
| 3957 | #endif |
| 3958 | if (((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) == 0) |
| 3959 | && ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) == 0)) { |
| 3960 | int done_yet; |
| 3961 | done_yet = TAILQ_EMPTY(&inp->sctp_queue_list); |
| 3962 | while (!done_yet) { |
| 3963 | sq_cnt++; |
| 3964 | sctp_remove_from_socket_q(inp); |
| 3965 | done_yet = TAILQ_EMPTY(&inp->sctp_queue_list); |
| 3966 | } |
| 3967 | } |
| 3968 | #ifdef SCTP_DEBUG |
| 3969 | if (sctp_debug_on & SCTP_DEBUG_USRREQ2) |
| 3970 | kprintf("Cleaned up %d sockq's\n", sq_cnt); |
| 3971 | #endif |
| 3972 | } |
| 3973 | SOCKBUF_UNLOCK(&so->so_rcv); |
| 3974 | if (stcb) |
| 3975 | SCTP_TCB_UNLOCK(stcb); |
| 3976 | SCTP_INP_WUNLOCK(inp); |
| 3977 | crit_exit(); |
| 3978 | return (0); |
| 3979 | } |
| 3980 | |
| 3981 | int |
| 3982 | #if (defined(__FreeBSD__) && __FreeBSD_version >= 500000) || defined(__DragonFly__) |
| 3983 | sctp_listen(struct socket *so, struct thread *p) |
| 3984 | #else |
| 3985 | sctp_listen(struct socket *so, struct proc *p) |
| 3986 | #endif |
| 3987 | { |
| 3988 | /* |
| 3989 | * Note this module depends on the protocol processing being |
| 3990 | * called AFTER any socket level flags and backlog are applied |
| 3991 | * to the socket. The traditional way that the socket flags are |
| 3992 | * applied is AFTER protocol processing. We have made a change |
| 3993 | * to the sys/kern/uipc_socket.c module to reverse this but this |
| 3994 | * MUST be in place if the socket API for SCTP is to work properly. |
| 3995 | */ |
| 3996 | int error = 0; |
| 3997 | struct sctp_inpcb *inp; |
| 3998 | |
| 3999 | crit_enter(); |
| 4000 | inp = (struct sctp_inpcb *)so->so_pcb; |
| 4001 | if (inp == 0) { |
| 4002 | crit_exit(); |
| 4003 | /* I made the same as TCP since we are not setup? */ |
| 4004 | return (ECONNRESET); |
| 4005 | } |
| 4006 | SCTP_INP_RLOCK(inp); |
| 4007 | if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) && |
| 4008 | (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) { |
| 4009 | /* We are already connected AND the TCP model */ |
| 4010 | crit_exit(); |
| 4011 | SCTP_INP_RUNLOCK(inp); |
| 4012 | return (EADDRINUSE); |
| 4013 | } |
| 4014 | if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) { |
| 4015 | /* We must do a bind. */ |
| 4016 | SCTP_INP_RUNLOCK(inp); |
| 4017 | if ((error = sctp_inpcb_bind(so, NULL, p))) { |
| 4018 | /* bind error, probably perm */ |
| 4019 | crit_exit(); |
| 4020 | return (error); |
| 4021 | } |
| 4022 | } else { |
| 4023 | SCTP_INP_RUNLOCK(inp); |
| 4024 | } |
| 4025 | SOCK_LOCK(so); |
| 4026 | SCTP_INP_WLOCK(inp); |
| 4027 | if (inp->sctp_socket->so_qlimit) { |
| 4028 | if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) { |
| 4029 | /* |
| 4030 | * For the UDP model we must TURN OFF the ACCEPT |
| 4031 | * flags since we do NOT allow the accept() call. |
| 4032 | * The TCP model (when present) will do accept which |
| 4033 | * then prohibits connect(). |
| 4034 | */ |
| 4035 | inp->sctp_socket->so_options &= ~SO_ACCEPTCONN; |
| 4036 | } |
| 4037 | inp->sctp_flags |= SCTP_PCB_FLAGS_ACCEPTING; |
| 4038 | } else { |
| 4039 | if (inp->sctp_flags & SCTP_PCB_FLAGS_ACCEPTING) { |
| 4040 | /* |
| 4041 | * Turning off the listen flags if the backlog is |
| 4042 | * set to 0 (i.e. qlimit is 0). |
| 4043 | */ |
| 4044 | inp->sctp_flags &= ~SCTP_PCB_FLAGS_ACCEPTING; |
| 4045 | } |
| 4046 | inp->sctp_socket->so_options &= ~SO_ACCEPTCONN; |
| 4047 | } |
| 4048 | SCTP_INP_WUNLOCK(inp); |
| 4049 | SOCK_UNLOCK(so); |
| 4050 | crit_exit(); |
| 4051 | return (error); |
| 4052 | } |
| 4053 | |
| 4054 | int |
| 4055 | #if defined(__FreeBSD__) || defined(__APPLE__) || defined(__DragonFly__) |
| 4056 | sctp_accept(struct socket *so, struct sockaddr **addr) |
| 4057 | { |
| 4058 | #else |
| 4059 | sctp_accept(struct socket *so, struct mbuf *nam) |
| 4060 | { |
| 4061 | struct sockaddr *addr = mtod(nam, struct sockaddr *); |
| 4062 | #endif |
| 4063 | struct sctp_tcb *stcb; |
| 4064 | struct sockaddr *prim; |
| 4065 | struct sctp_inpcb *inp; |
| 4066 | |
| 4067 | crit_enter(); |
| 4068 | inp = (struct sctp_inpcb *)so->so_pcb; |
| 4069 | |
| 4070 | if (inp == 0) { |
| 4071 | crit_exit(); |
| 4072 | return (ECONNRESET); |
| 4073 | } |
| 4074 | SCTP_INP_RLOCK(inp); |
| 4075 | if (so->so_state & SS_ISDISCONNECTED) { |
| 4076 | crit_exit(); |
| 4077 | SCTP_INP_RUNLOCK(inp); |
| 4078 | return (ECONNABORTED); |
| 4079 | } |
| 4080 | stcb = LIST_FIRST(&inp->sctp_asoc_list); |
| 4081 | if (stcb == NULL) { |
| 4082 | crit_exit(); |
| 4083 | SCTP_INP_RUNLOCK(inp); |
| 4084 | return (ECONNRESET); |
| 4085 | } |
| 4086 | SCTP_TCB_LOCK(stcb); |
| 4087 | SCTP_INP_RUNLOCK(inp); |
| 4088 | prim = (struct sockaddr *)&stcb->asoc.primary_destination->ro._l_addr; |
| 4089 | if (prim->sa_family == AF_INET) { |
| 4090 | struct sockaddr_in *sin; |
| 4091 | #if defined(__FreeBSD__) || defined(__APPLE__) || defined(__DragonFly__) |
| 4092 | MALLOC(sin, struct sockaddr_in *, sizeof *sin, M_SONAME, |
| 4093 | M_WAITOK | M_ZERO); |
| 4094 | #else |
| 4095 | sin = (struct sockaddr_in *)addr; |
| 4096 | bzero((caddr_t)sin, sizeof (*sin)); |
| 4097 | #endif |
| 4098 | sin->sin_family = AF_INET; |
| 4099 | sin->sin_len = sizeof(*sin); |
| 4100 | sin->sin_port = ((struct sockaddr_in *)prim)->sin_port; |
| 4101 | sin->sin_addr = ((struct sockaddr_in *)prim)->sin_addr; |
| 4102 | #if defined(__FreeBSD__) || defined(__APPLE__) || defined(__DragonFly__) |
| 4103 | *addr = (struct sockaddr *)sin; |
| 4104 | #else |
| 4105 | nam->m_len = sizeof(*sin); |
| 4106 | #endif |
| 4107 | } else { |
| 4108 | struct sockaddr_in6 *sin6; |
| 4109 | #if defined(__FreeBSD__) || defined(__APPLE__) || defined(__DragonFly__) |
| 4110 | MALLOC(sin6, struct sockaddr_in6 *, sizeof *sin6, M_SONAME, |
| 4111 | M_WAITOK | M_ZERO); |
| 4112 | #else |
| 4113 | sin6 = (struct sockaddr_in6 *)addr; |
| 4114 | #endif |
| 4115 | bzero((caddr_t)sin6, sizeof (*sin6)); |
| 4116 | sin6->sin6_family = AF_INET6; |
| 4117 | sin6->sin6_len = sizeof(*sin6); |
| 4118 | sin6->sin6_port = ((struct sockaddr_in6 *)prim)->sin6_port; |
| 4119 | |
| 4120 | sin6->sin6_addr = ((struct sockaddr_in6 *)prim)->sin6_addr; |
| 4121 | if (IN6_IS_SCOPE_LINKLOCAL(&sin6->sin6_addr)) |
| 4122 | /* sin6->sin6_scope_id = ntohs(sin6->sin6_addr.s6_addr16[1]);*/ |
| 4123 | in6_recoverscope(sin6, &sin6->sin6_addr, NULL); /* skip ifp check */ |
| 4124 | else |
| 4125 | sin6->sin6_scope_id = 0; /*XXX*/ |
| 4126 | #if defined(__FreeBSD__) || defined (__APPLE__) || defined(__DragonFly__) |
| 4127 | *addr= (struct sockaddr *)sin6; |
| 4128 | #else |
| 4129 | nam->m_len = sizeof(*sin6); |
| 4130 | #endif |
| 4131 | } |
| 4132 | /* Wake any delayed sleep action */ |
| 4133 | SCTP_TCB_UNLOCK(stcb); |
| 4134 | SCTP_INP_WLOCK(inp); |
| 4135 | if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { |
| 4136 | inp->sctp_flags &= ~SCTP_PCB_FLAGS_DONT_WAKE; |
| 4137 | if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEOUTPUT) { |
| 4138 | inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEOUTPUT; |
| 4139 | #if defined(__NetBSD__) |
| 4140 | if (sowritable(inp->sctp_socket)) |
| 4141 | sowwakeup(inp->sctp_socket); |
| 4142 | #else |
| 4143 | if (sowriteable(inp->sctp_socket)) |
| 4144 | sowwakeup(inp->sctp_socket); |
| 4145 | #endif |
| 4146 | } |
| 4147 | if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEINPUT) { |
| 4148 | inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEINPUT; |
| 4149 | if (soreadable(inp->sctp_socket)) |
| 4150 | sorwakeup(inp->sctp_socket); |
| 4151 | } |
| 4152 | |
| 4153 | } |
| 4154 | SCTP_INP_WUNLOCK(inp); |
| 4155 | crit_exit(); |
| 4156 | return (0); |
| 4157 | } |
| 4158 | |
| 4159 | int |
| 4160 | #if defined(__FreeBSD__) || defined(__APPLE__) || defined(__DragonFly__) |
| 4161 | sctp_ingetaddr(struct socket *so, struct sockaddr **addr) |
| 4162 | #else |
| 4163 | sctp_ingetaddr(struct socket *so, struct mbuf *nam) |
| 4164 | #endif |
| 4165 | { |
| 4166 | #if defined(__FreeBSD__) || defined(__APPLE__) || defined(__DragonFly__) |
| 4167 | struct sockaddr_in *sin; |
| 4168 | #else |
| 4169 | struct sockaddr_in *sin = mtod(nam, struct sockaddr_in *); |
| 4170 | #endif |
| 4171 | struct sctp_inpcb *inp; |
| 4172 | /* |
| 4173 | * Do the malloc first in case it blocks. |
| 4174 | */ |
| 4175 | #if defined(__FreeBSD__) || defined(__APPLE__) || defined(__DragonFly__) |
| 4176 | MALLOC(sin, struct sockaddr_in *, sizeof *sin, M_SONAME, M_WAITOK | |
| 4177 | M_ZERO); |
| 4178 | #else |
| 4179 | nam->m_len = sizeof(*sin); |
| 4180 | memset(sin, 0, sizeof(*sin)); |
| 4181 | #endif |
| 4182 | sin->sin_family = AF_INET; |
| 4183 | sin->sin_len = sizeof(*sin); |
| 4184 | crit_enter(); |
| 4185 | inp = (struct sctp_inpcb *)so->so_pcb; |
| 4186 | if (!inp) { |
| 4187 | crit_exit(); |
| 4188 | #if defined(__FreeBSD__) || defined(__APPLE__) || defined(__DragonFly__) |
| 4189 | FREE(sin, M_SONAME); |
| 4190 | #endif |
| 4191 | return ECONNRESET; |
| 4192 | } |
| 4193 | SCTP_INP_RLOCK(inp); |
| 4194 | sin->sin_port = inp->sctp_lport; |
| 4195 | if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) { |
| 4196 | if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) { |
| 4197 | struct sctp_tcb *stcb; |
| 4198 | struct sockaddr_in *sin_a; |
| 4199 | struct sctp_nets *net; |
| 4200 | int fnd; |
| 4201 | |
| 4202 | stcb = LIST_FIRST(&inp->sctp_asoc_list); |
| 4203 | if (stcb == NULL) { |
| 4204 | goto notConn; |
| 4205 | } |
| 4206 | fnd = 0; |
| 4207 | sin_a = NULL; |
| 4208 | SCTP_TCB_LOCK(stcb); |
| 4209 | TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { |
| 4210 | sin_a = (struct sockaddr_in *)&net->ro._l_addr; |
| 4211 | if (sin_a->sin_family == AF_INET) { |
| 4212 | fnd = 1; |
| 4213 | break; |
| 4214 | } |
| 4215 | } |
| 4216 | if ((!fnd) || (sin_a == NULL)) { |
| 4217 | /* punt */ |
| 4218 | SCTP_TCB_UNLOCK(stcb); |
| 4219 | goto notConn; |
| 4220 | } |
| 4221 | sin->sin_addr = sctp_ipv4_source_address_selection(inp, |
| 4222 | stcb, (struct route *)&net->ro, net, 0); |
| 4223 | SCTP_TCB_UNLOCK(stcb); |
| 4224 | } else { |
| 4225 | /* For the bound all case you get back 0 */ |
| 4226 | notConn: |
| 4227 | sin->sin_addr.s_addr = 0; |
| 4228 | } |
| 4229 | |
| 4230 | } else { |
| 4231 | /* Take the first IPv4 address in the list */ |
| 4232 | struct sctp_laddr *laddr; |
| 4233 | int fnd = 0; |
| 4234 | LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) { |
| 4235 | if (laddr->ifa->ifa_addr->sa_family == AF_INET) { |
| 4236 | struct sockaddr_in *sin_a; |
| 4237 | sin_a = (struct sockaddr_in *)laddr->ifa->ifa_addr; |
| 4238 | sin->sin_addr = sin_a->sin_addr; |
| 4239 | fnd = 1; |
| 4240 | break; |
| 4241 | } |
| 4242 | } |
| 4243 | if (!fnd) { |
| 4244 | crit_exit(); |
| 4245 | #if defined(__FreeBSD__) || defined(__APPLE__) || defined(__DragonFly__) |
| 4246 | FREE(sin, M_SONAME); |
| 4247 | #endif |
| 4248 | SCTP_INP_RUNLOCK(inp); |
| 4249 | return ENOENT; |
| 4250 | } |
| 4251 | } |
| 4252 | SCTP_INP_RUNLOCK(inp); |
| 4253 | crit_exit(); |
| 4254 | #if defined(__FreeBSD__) || defined(__APPLE__) || defined(__DragonFly__) |
| 4255 | (*addr) = (struct sockaddr *)sin; |
| 4256 | #endif |
| 4257 | return (0); |
| 4258 | } |
| 4259 | |
| 4260 | int |
| 4261 | #if defined(__FreeBSD__) || defined(__APPLE__) || defined(__DragonFly__) |
| 4262 | sctp_peeraddr(struct socket *so, struct sockaddr **addr) |
| 4263 | { |
| 4264 | struct sockaddr_in *sin = (struct sockaddr_in *)*addr; |
| 4265 | #else |
| 4266 | sctp_peeraddr(struct socket *so, struct mbuf *nam) |
| 4267 | { |
| 4268 | struct sockaddr_in *sin = mtod(nam, struct sockaddr_in *); |
| 4269 | #endif |
| 4270 | int fnd; |
| 4271 | struct sockaddr_in *sin_a; |
| 4272 | struct sctp_inpcb *inp; |
| 4273 | struct sctp_tcb *stcb; |
| 4274 | struct sctp_nets *net; |
| 4275 | |
| 4276 | /* Do the malloc first in case it blocks. */ |
| 4277 | inp = (struct sctp_inpcb *)so->so_pcb; |
| 4278 | if ((inp == NULL) || |
| 4279 | ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) == 0)) { |
| 4280 | /* UDP type and listeners will drop out here */ |
| 4281 | return (ENOTCONN); |
| 4282 | } |
| 4283 | crit_enter(); |
| 4284 | |
| 4285 | #if defined(__FreeBSD__) || defined(__APPLE__) || defined(__DragonFly__) |
| 4286 | MALLOC(sin, struct sockaddr_in *, sizeof *sin, M_SONAME, M_WAITOK | |
| 4287 | M_ZERO); |
| 4288 | #else |
| 4289 | nam->m_len = sizeof(*sin); |
| 4290 | memset(sin, 0, sizeof(*sin)); |
| 4291 | #endif |
| 4292 | sin->sin_family = AF_INET; |
| 4293 | sin->sin_len = sizeof(*sin); |
| 4294 | |
| 4295 | /* We must recapture incase we blocked */ |
| 4296 | inp = (struct sctp_inpcb *)so->so_pcb; |
| 4297 | if (!inp) { |
| 4298 | crit_exit(); |
| 4299 | #if defined(__FreeBSD__) || defined(__APPLE__) || defined(__DragonFly__) |
| 4300 | FREE(sin, M_SONAME); |
| 4301 | #endif |
| 4302 | return ECONNRESET; |
| 4303 | } |
| 4304 | SCTP_INP_RLOCK(inp); |
| 4305 | stcb = LIST_FIRST(&inp->sctp_asoc_list); |
| 4306 | if (stcb) |
| 4307 | SCTP_TCB_LOCK(stcb); |
| 4308 | SCTP_INP_RUNLOCK(inp); |
| 4309 | if (stcb == NULL) { |
| 4310 | crit_exit(); |
| 4311 | #if defined(__FreeBSD__) || defined(__APPLE__) || defined(__DragonFly__) |
| 4312 | FREE(sin, M_SONAME); |
| 4313 | #endif |
| 4314 | return ECONNRESET; |
| 4315 | } |
| 4316 | fnd = 0; |
| 4317 | TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { |
| 4318 | sin_a = (struct sockaddr_in *)&net->ro._l_addr; |
| 4319 | if (sin_a->sin_family == AF_INET) { |
| 4320 | fnd = 1; |
| 4321 | sin->sin_port = stcb->rport; |
| 4322 | sin->sin_addr = sin_a->sin_addr; |
| 4323 | break; |
| 4324 | } |
| 4325 | } |
| 4326 | SCTP_TCB_UNLOCK(stcb); |
| 4327 | if (!fnd) { |
| 4328 | /* No IPv4 address */ |
| 4329 | crit_exit(); |
| 4330 | #if defined(__FreeBSD__) || defined(__APPLE__) || defined(__DragonFly__) |
| 4331 | FREE(sin, M_SONAME); |
| 4332 | #endif |
| 4333 | return ENOENT; |
| 4334 | } |
| 4335 | crit_exit(); |
| 4336 | return (0); |
| 4337 | } |
| 4338 | |
| 4339 | #if defined(__FreeBSD__) || defined(__APPLE__) || defined(__DragonFly__) |
| 4340 | struct pr_usrreqs sctp_usrreqs = { |
| 4341 | .pru_abort = sctp_abort, |
| 4342 | .pru_accept = sctp_accept, |
| 4343 | .pru_attach = sctp_attach, |
| 4344 | .pru_bind = sctp_bind, |
| 4345 | .pru_connect = sctp_connect, |
| 4346 | .pru_connect2 = pru_connect2_notsupp, |
| 4347 | .pru_control = in_control, |
| 4348 | .pru_detach = sctp_detach, |
| 4349 | .pru_disconnect = sctp_disconnect, |
| 4350 | .pru_listen = sctp_listen, |
| 4351 | .pru_peeraddr = sctp_peeraddr, |
| 4352 | .pru_rcvd = sctp_usr_recvd, |
| 4353 | .pru_rcvoob = pru_rcvoob_notsupp, |
| 4354 | .pru_send = sctp_send, |
| 4355 | .pru_sense = pru_sense_null, |
| 4356 | .pru_shutdown = sctp_shutdown, |
| 4357 | .pru_sockaddr = sctp_ingetaddr, |
| 4358 | .pru_sosend = sctp_sosend, |
| 4359 | .pru_soreceive = soreceive |
| 4360 | }; |
| 4361 | |
| 4362 | #else |
| 4363 | #if defined(__NetBSD__) |
| 4364 | int |
| 4365 | sctp_usrreq(struct socket *so, int req, struct mbuf *m, struct mbuf *nam, |
| 4366 | struct mbuf *control, struct proc *p) |
| 4367 | { |
| 4368 | #else |
| 4369 | int |
| 4370 | sctp_usrreq(struct socket *so, int req, struct mbuf *m, struct mbuf *nam, |
| 4371 | struct mbuf *control) |
| 4372 | { |
| 4373 | struct proc *p = curproc; |
| 4374 | #endif |
| 4375 | int error = 0; |
| 4376 | int family; |
| 4377 | |
| 4378 | family = so->so_proto->pr_domain->dom_family; |
| 4379 | |
| 4380 | crit_enter(); |
| 4381 | if (req == PRU_CONTROL) { |
| 4382 | switch (family) { |
| 4383 | case PF_INET: |
| 4384 | error = in_control(so, (long)m, (caddr_t)nam, |
| 4385 | (struct ifnet *)control |
| 4386 | #if defined(__NetBSD__) |
| 4387 | , p |
| 4388 | #endif |
| 4389 | ); |
| 4390 | break; |
| 4391 | #ifdef INET6 |
| 4392 | case PF_INET6: |
| 4393 | error = in6_control(so, (long)m, (caddr_t)nam, |
| 4394 | (struct ifnet *)control, p); |
| 4395 | break; |
| 4396 | #endif |
| 4397 | default: |
| 4398 | error = EAFNOSUPPORT; |
| 4399 | } |
| 4400 | crit_exit(); |
| 4401 | return (error); |
| 4402 | } |
| 4403 | #ifdef __NetBSD__ |
| 4404 | if (req == PRU_PURGEIF) { |
| 4405 | struct ifnet *ifn; |
| 4406 | struct ifaddr *ifa; |
| 4407 | ifn = (struct ifnet *)control; |
| 4408 | TAILQ_FOREACH(ifa, &ifn->if_addrlist, ifa_list) { |
| 4409 | if (ifa->ifa_addr->sa_family == family) { |
| 4410 | sctp_delete_ip_address(ifa); |
| 4411 | } |
| 4412 | } |
| 4413 | switch (family) { |
| 4414 | case PF_INET: |
| 4415 | in_purgeif (ifn); |
| 4416 | break; |
| 4417 | #ifdef INET6 |
| 4418 | case PF_INET6: |
| 4419 | in6_purgeif (ifn); |
| 4420 | break; |
| 4421 | #endif /* INET6 */ |
| 4422 | default: |
| 4423 | crit_exit(); |
| 4424 | return (EAFNOSUPPORT); |
| 4425 | } |
| 4426 | crit_exit(); |
| 4427 | return (0); |
| 4428 | } |
| 4429 | #endif |
| 4430 | switch (req) { |
| 4431 | case PRU_ATTACH: |
| 4432 | error = sctp_attach(so, family, p); |
| 4433 | break; |
| 4434 | case PRU_DETACH: |
| 4435 | error = sctp_detach(so); |
| 4436 | break; |
| 4437 | case PRU_BIND: |
| 4438 | if (nam == NULL) { |
| 4439 | crit_exit(); |
| 4440 | return (EINVAL); |
| 4441 | } |
| 4442 | error = sctp_bind(so, nam, p); |
| 4443 | break; |
| 4444 | case PRU_LISTEN: |
| 4445 | error = sctp_listen(so, p); |
| 4446 | break; |
| 4447 | case PRU_CONNECT: |
| 4448 | if (nam == NULL) { |
| 4449 | crit_exit(); |
| 4450 | return (EINVAL); |
| 4451 | } |
| 4452 | error = sctp_connect(so, nam, p); |
| 4453 | break; |
| 4454 | case PRU_DISCONNECT: |
| 4455 | error = sctp_disconnect(so); |
| 4456 | break; |
| 4457 | case PRU_ACCEPT: |
| 4458 | if (nam == NULL) { |
| 4459 | crit_exit(); |
| 4460 | return (EINVAL); |
| 4461 | } |
| 4462 | error = sctp_accept(so, nam); |
| 4463 | break; |
| 4464 | case PRU_SHUTDOWN: |
| 4465 | error = sctp_shutdown(so); |
| 4466 | break; |
| 4467 | |
| 4468 | case PRU_RCVD: |
| 4469 | /* |
| 4470 | * For Open and Net BSD, this is real |
| 4471 | * ugly. The mbuf *nam that is passed |
| 4472 | * (by soreceive()) is the int flags c |
| 4473 | * ast as a (mbuf *) yuck! |
| 4474 | */ |
| 4475 | error = sctp_usr_recvd(so, (int)((long)nam)); |
| 4476 | break; |
| 4477 | |
| 4478 | case PRU_SEND: |
| 4479 | /* Flags are ignored */ |
| 4480 | #ifdef SCTP_DEBUG |
| 4481 | if (sctp_debug_on & SCTP_DEBUG_USRREQ1) { |
| 4482 | kprintf("Send called on V4 side\n"); |
| 4483 | } |
| 4484 | #endif |
| 4485 | { |
| 4486 | struct sockaddr *addr; |
| 4487 | if (nam == NULL) |
| 4488 | addr = NULL; |
| 4489 | else |
| 4490 | addr = mtod(nam, struct sockaddr *); |
| 4491 | |
| 4492 | error = sctp_send(so, 0, m, addr, control, p); |
| 4493 | } |
| 4494 | break; |
| 4495 | case PRU_ABORT: |
| 4496 | error = sctp_abort(so); |
| 4497 | break; |
| 4498 | |
| 4499 | case PRU_SENSE: |
| 4500 | error = 0; |
| 4501 | break; |
| 4502 | case PRU_RCVOOB: |
| 4503 | error = EAFNOSUPPORT; |
| 4504 | break; |
| 4505 | case PRU_SENDOOB: |
| 4506 | error = EAFNOSUPPORT; |
| 4507 | break; |
| 4508 | case PRU_PEERADDR: |
| 4509 | error = sctp_peeraddr(so, nam); |
| 4510 | break; |
| 4511 | case PRU_SOCKADDR: |
| 4512 | error = sctp_ingetaddr(so, nam); |
| 4513 | break; |
| 4514 | case PRU_SLOWTIMO: |
| 4515 | error = 0; |
| 4516 | break; |
| 4517 | default: |
| 4518 | break; |
| 4519 | } |
| 4520 | crit_exit(); |
| 4521 | return (error); |
| 4522 | } |
| 4523 | #endif |
| 4524 | |
| 4525 | /* #if defined(__NetBSD__) || defined(__OpenBSD__) */ |
| 4526 | #if __OpenBSD__ |
| 4527 | /* |
| 4528 | * Sysctl for sctp variables. |
| 4529 | */ |
| 4530 | int |
| 4531 | sctp_sysctl(int *name, u_int namelen, void *oldp, size_t *oldlenp, void *newp, |
| 4532 | size_t newlen) |
| 4533 | { |
| 4534 | |
| 4535 | /* All sysctl names at this level are terminal. */ |
| 4536 | if (namelen != 1) |
| 4537 | return (ENOTDIR); |
| 4538 | sysctl_int(); |
| 4539 | |
| 4540 | switch (name[0]) { |
| 4541 | case SCTPCTL_MAXDGRAM: |
| 4542 | return (sysctl_int(oldp, oldlenp, newp, newlen, |
| 4543 | &sctp_sendspace)); |
| 4544 | case SCTPCTL_RECVSPACE: |
| 4545 | return (sysctl_int(oldp, oldlenp, newp, newlen, |
| 4546 | &sctp_recvspace)); |
| 4547 | case SCTPCTL_AUTOASCONF: |
| 4548 | return (sysctl_int(oldp, oldlenp, newp, newlen, |
| 4549 | &sctp_auto_asconf)); |
| 4550 | case SCTPCTL_ECN_ENABLE: |
| 4551 | return (sysctl_int(oldp, oldlenp, newp, newlen, |
| 4552 | &sctp_ecn)); |
| 4553 | case SCTPCTL_ECN_NONCE: |
| 4554 | return (sysctl_int(oldp, oldlenp, newp, newlen, |
| 4555 | &sctp_ecn_nonce)); |
| 4556 | case SCTPCTL_STRICT_SACK: |
| 4557 | return (sysctl_int(oldp, oldlenp, newp, newlen, |
| 4558 | &sctp_strict_sacks)); |
| 4559 | case SCTPCTL_NOCSUM_LO: |
| 4560 | return (sysctl_int(oldp, oldlenp, newp, newlen, |
| 4561 | &sctp_no_csum_on_loopback)); |
| 4562 | case SCTPCTL_STRICT_INIT: |
| 4563 | return (sysctl_int(oldp, oldlenp, newp, newlen, |
| 4564 | &sctp_strict_init)); |
| 4565 | case SCTPCTL_PEER_CHK_OH: |
| 4566 | return (sysctl_int(oldp, oldlenp, newp, newlen, |
| 4567 | &sctp_peer_chunk_oh)); |
| 4568 | case SCTPCTL_MAXBURST: |
| 4569 | return (sysctl_int(oldp, oldlenp, newp, newlen, |
| 4570 | &sctp_max_burst_default)); |
| 4571 | case SCTPCTL_MAXCHUNKONQ: |
| 4572 | return (sysctl_int(oldp, oldlenp, newp, newlen, |
| 4573 | &sctp_max_chunks_on_queue)); |
| 4574 | case SCTPCTL_DELAYED_SACK: |
| 4575 | return (sysctl_int(oldp, oldlenp, newp, newlen, |
| 4576 | &sctp_delayed_sack_time_default)); |
| 4577 | case SCTPCTL_HB_INTERVAL: |
| 4578 | return (sysctl_int(oldp, oldlenp, newp, newlen, |
| 4579 | &sctp_heartbeat_interval_default)); |
| 4580 | case SCTPCTL_PMTU_RAISE: |
| 4581 | return (sysctl_int(oldp, oldlenp, newp, newlen, |
| 4582 | &sctp_pmtu_raise_time_default)); |
| 4583 | case SCTPCTL_SHUTDOWN_GUARD: |
| 4584 | return (sysctl_int(oldp, oldlenp, newp, newlen, |
| 4585 | &sctp_shutdown_guard_time_default)); |
| 4586 | case SCTPCTL_SECRET_LIFETIME: |
| 4587 | return (sysctl_int(oldp, oldlenp, newp, newlen, |
| 4588 | &sctp_secret_lifetime_default)); |
| 4589 | case SCTPCTL_RTO_MAX: |
| 4590 | return (sysctl_int(oldp, oldlenp, newp, newlen, |
| 4591 | &sctp_rto_max_default)); |
| 4592 | case SCTPCTL_RTO_MIN: |
| 4593 | return (sysctl_int(oldp, oldlenp, newp, newlen, |
| 4594 | &sctp_rto_min_default)); |
| 4595 | case SCTPCTL_RTO_INITIAL: |
| 4596 | return (sysctl_int(oldp, oldlenp, newp, newlen, |
| 4597 | &sctp_rto_initial_default)); |
| 4598 | case SCTPCTL_INIT_RTO_MAX: |
| 4599 | return (sysctl_int(oldp, oldlenp, newp, newlen, |
| 4600 | &sctp_init_rto_max_default)); |
| 4601 | case SCTPCTL_COOKIE_LIFE: |
| 4602 | return (sysctl_int(oldp, oldlenp, newp, newlen, |
| 4603 | &sctp_valid_cookie_life_default)); |
| 4604 | case SCTPCTL_INIT_RTX_MAX: |
| 4605 | return (sysctl_int(oldp, oldlenp, newp, newlen, |
| 4606 | &sctp_init_rtx_max_default)); |
| 4607 | case SCTPCTL_ASSOC_RTX_MAX: |
| 4608 | return (sysctl_int(oldp, oldlenp, newp, newlen, |
| 4609 | &sctp_assoc_rtx_max_default)); |
| 4610 | case SCTPCTL_PATH_RTX_MAX: |
| 4611 | return (sysctl_int(oldp, oldlenp, newp, newlen, |
| 4612 | &sctp_path_rtx_max_default)); |
| 4613 | case SCTPCTL_NR_OUTGOING_STREAMS: |
| 4614 | return (sysctl_int(oldp, oldlenp, newp, newlen, |
| 4615 | &sctp_nr_outgoing_streams_default)); |
| 4616 | #ifdef SCTP_DEBUG |
| 4617 | case SCTPCTL_DEBUG: |
| 4618 | return (sysctl_int(oldp, oldlenp, newp, newlen, |
| 4619 | &sctp_debug_on)); |
| 4620 | #endif |
| 4621 | default: |
| 4622 | return (ENOPROTOOPT); |
| 4623 | } |
| 4624 | /* NOTREACHED */ |
| 4625 | } |
| 4626 | #endif |
| 4627 | #if __NetBSD__ |
| 4628 | /* |
| 4629 | * Sysctl for sctp variables. |
| 4630 | */ |
| 4631 | SYSCTL_SETUP(sysctl_net_inet_sctp_setup, "sysctl net.inet.sctp subtree setup") |
| 4632 | { |
| 4633 | |
| 4634 | sysctl_createv(clog, 0, NULL, NULL, |
| 4635 | CTLFLAG_PERMANENT, |
| 4636 | CTLTYPE_NODE, "net", NULL, |
| 4637 | NULL, 0, NULL, 0, |
| 4638 | CTL_NET, CTL_EOL); |
| 4639 | sysctl_createv(clog, 0, NULL, NULL, |
| 4640 | CTLFLAG_PERMANENT, |
| 4641 | CTLTYPE_NODE, "inet", NULL, |
| 4642 | NULL, 0, NULL, 0, |
| 4643 | CTL_NET, PF_INET, CTL_EOL); |
| 4644 | sysctl_createv(clog, 0, NULL, NULL, |
| 4645 | CTLFLAG_PERMANENT, |
| 4646 | CTLTYPE_NODE, "sctp", |
| 4647 | SYSCTL_DESCR("sctp related settings"), |
| 4648 | NULL, 0, NULL, 0, |
| 4649 | CTL_NET, PF_INET, IPPROTO_SCTP, CTL_EOL); |
| 4650 | |
| 4651 | sysctl_createv(clog, 0, NULL, NULL, |
| 4652 | CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
| 4653 | CTLTYPE_INT, "maxdgram", |
| 4654 | SYSCTL_DESCR("Maximum outgoing SCTP buffer size"), |
| 4655 | NULL, 0, &sctp_sendspace, 0, |
| 4656 | CTL_NET, PF_INET, IPPROTO_SCTP, SCTPCTL_MAXDGRAM, |
| 4657 | CTL_EOL); |
| 4658 | |
| 4659 | sysctl_createv(clog, 0, NULL, NULL, |
| 4660 | CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
| 4661 | CTLTYPE_INT, "recvspace", |
| 4662 | SYSCTL_DESCR("Maximum incoming SCTP buffer size"), |
| 4663 | NULL, 0, &sctp_recvspace, 0, |
| 4664 | CTL_NET, PF_INET, IPPROTO_SCTP, SCTPCTL_RECVSPACE, |
| 4665 | CTL_EOL); |
| 4666 | |
| 4667 | sysctl_createv(clog, 0, NULL, NULL, |
| 4668 | CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
| 4669 | CTLTYPE_INT, "autoasconf", |
| 4670 | SYSCTL_DESCR("Enable SCTP Auto-ASCONF"), |
| 4671 | NULL, 0, &sctp_auto_asconf, 0, |
| 4672 | CTL_NET, PF_INET, IPPROTO_SCTP, SCTPCTL_AUTOASCONF, |
| 4673 | CTL_EOL); |
| 4674 | |
| 4675 | sysctl_createv(clog, 0, NULL, NULL, |
| 4676 | CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
| 4677 | CTLTYPE_INT, "ecn_enable", |
| 4678 | SYSCTL_DESCR("Enable SCTP ECN"), |
| 4679 | NULL, 0, &sctp_ecn, 0, |
| 4680 | CTL_NET, PF_INET, IPPROTO_SCTP, SCTPCTL_ECN_ENABLE, |
| 4681 | CTL_EOL); |
| 4682 | |
| 4683 | sysctl_createv(clog, 0, NULL, NULL, |
| 4684 | CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
| 4685 | CTLTYPE_INT, "ecn_nonce", |
| 4686 | SYSCTL_DESCR("Enable SCTP ECN Nonce"), |
| 4687 | NULL, 0, &sctp_ecn_nonce, 0, |
| 4688 | CTL_NET, PF_INET, IPPROTO_SCTP, SCTPCTL_ECN_NONCE, |
| 4689 | CTL_EOL); |
| 4690 | |
| 4691 | sysctl_createv(clog, 0, NULL, NULL, |
| 4692 | CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
| 4693 | CTLTYPE_INT, "strict_sack", |
| 4694 | SYSCTL_DESCR("Enable SCTP Strict SACK checking"), |
| 4695 | NULL, 0, &sctp_strict_sacks, 0, |
| 4696 | CTL_NET, PF_INET, IPPROTO_SCTP, SCTPCTL_STRICT_SACK, |
| 4697 | CTL_EOL); |
| 4698 | |
| 4699 | sysctl_createv(clog, 0, NULL, NULL, |
| 4700 | CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
| 4701 | CTLTYPE_INT, "loopback_nocsum", |
| 4702 | SYSCTL_DESCR("Enable NO Csum on packets sent on loopback"), |
| 4703 | NULL, 0, &sctp_no_csum_on_loopback, 0, |
| 4704 | CTL_NET, PF_INET, IPPROTO_SCTP, SCTPCTL_NOCSUM_LO, |
| 4705 | CTL_EOL); |
| 4706 | |
| 4707 | sysctl_createv(clog, 0, NULL, NULL, |
| 4708 | CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
| 4709 | CTLTYPE_INT, "strict_init", |
| 4710 | SYSCTL_DESCR("Enable strict INIT/INIT-ACK singleton enforcement"), |
| 4711 | NULL, 0, &sctp_strict_init, 0, |
| 4712 | CTL_NET, PF_INET, IPPROTO_SCTP, SCTPCTL_STRICT_INIT, |
| 4713 | CTL_EOL); |
| 4714 | |
| 4715 | sysctl_createv(clog, 0, NULL, NULL, |
| 4716 | CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
| 4717 | CTLTYPE_INT, "peer_chkoh", |
| 4718 | SYSCTL_DESCR("Amount to debit peers rwnd per chunk sent"), |
| 4719 | NULL, 0, &sctp_peer_chunk_oh, 0, |
| 4720 | CTL_NET, PF_INET, IPPROTO_SCTP, SCTPCTL_PEER_CHK_OH, |
| 4721 | CTL_EOL); |
| 4722 | |
| 4723 | sysctl_createv(clog, 0, NULL, NULL, |
| 4724 | CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
| 4725 | CTLTYPE_INT, "maxburst", |
| 4726 | SYSCTL_DESCR("Default max burst for sctp endpoints"), |
| 4727 | NULL, 0, &sctp_max_burst_default, 0, |
| 4728 | CTL_NET, PF_INET, IPPROTO_SCTP, SCTPCTL_MAXBURST, |
| 4729 | CTL_EOL); |
| 4730 | |
| 4731 | sysctl_createv(clog, 0, NULL, NULL, |
| 4732 | CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
| 4733 | CTLTYPE_INT, "maxchunks", |
| 4734 | SYSCTL_DESCR("Default max chunks on queue per asoc"), |
| 4735 | NULL, 0, &sctp_max_chunks_on_queue, 0, |
| 4736 | CTL_NET, PF_INET, IPPROTO_SCTP, SCTPCTL_MAXCHUNKONQ, |
| 4737 | CTL_EOL); |
| 4738 | |
| 4739 | } |
| 4740 | #endif |