1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #pragma ident "%Z%%M% %I% %E% SMI" 28 29 #include <sys/types.h> 30 #include <sys/stream.h> 31 #define _SUN_TPI_VERSION 2 32 #include <sys/tihdr.h> 33 #include <sys/socket.h> 34 #include <sys/xti_inet.h> 35 #include <sys/systm.h> 36 #include <sys/ddi.h> 37 #include <sys/sunddi.h> 38 #include <sys/kmem.h> 39 #include <sys/strsubr.h> 40 #include <sys/strsun.h> 41 #include <sys/policy.h> 42 43 #include <inet/common.h> 44 #include <netinet/ip6.h> 45 #include <inet/ip.h> 46 #include <inet/ip_ire.h> 47 #include <inet/ip_if.h> 48 #include <inet/ipclassifier.h> 49 #include <inet/ipsec_impl.h> 50 51 #include <netinet/in.h> 52 #include <netinet/ip.h> 53 #include <netinet/tcp.h> 54 55 #include <inet/common.h> 56 #include <inet/ip.h> 57 #include <inet/ip6.h> 58 #include <inet/sctp_itf.h> 59 #include "sctp_impl.h" 60 #include "sctp_asconf.h" 61 #include "sctp_addr.h" 62 63 static int sctp_getpeeraddrs(sctp_t *, void *, int *); 64 65 /* 66 * Copy the standard header into its new location, 67 * lay in the new options and then update the relevant 68 * fields in both sctp_t and the standard header. 69 * Returns 0 on success, errno otherwise. 70 */ 71 static int 72 sctp_opt_set_header(sctp_t *sctp, const void *ptr, uint_t len) 73 { 74 uint8_t *ip_optp; 75 sctp_hdr_t *new_sctph; 76 77 if ((len > SCTP_MAX_IP_OPTIONS_LENGTH) || (len & 0x3)) 78 return (EINVAL); 79 80 if (len > IP_MAX_OPT_LENGTH - sctp->sctp_v4label_len) 81 return (EINVAL); 82 83 ip_optp = (uint8_t *)sctp->sctp_ipha + IP_SIMPLE_HDR_LENGTH; 84 85 if (sctp->sctp_v4label_len > 0) { 86 int padlen; 87 uint8_t opt; 88 89 /* convert list termination to no-ops as needed */ 90 padlen = sctp->sctp_v4label_len - ip_optp[IPOPT_OLEN]; 91 ip_optp += ip_optp[IPOPT_OLEN]; 92 opt = len > 0 ? IPOPT_NOP : IPOPT_EOL; 93 while (--padlen >= 0) 94 *ip_optp++ = opt; 95 ASSERT(ip_optp == (uint8_t *)sctp->sctp_ipha + 96 IP_SIMPLE_HDR_LENGTH + sctp->sctp_v4label_len); 97 } 98 99 /* 100 * Move the existing SCTP header out where it belongs. 101 */ 102 new_sctph = (sctp_hdr_t *)(ip_optp + len); 103 ovbcopy(sctp->sctp_sctph, new_sctph, sizeof (sctp_hdr_t)); 104 sctp->sctp_sctph = new_sctph; 105 106 /* 107 * Insert the new user-supplied IP options. 108 */ 109 if (len > 0) 110 bcopy(ptr, ip_optp, len); 111 112 len += sctp->sctp_v4label_len; 113 sctp->sctp_ip_hdr_len = len; 114 sctp->sctp_ipha->ipha_version_and_hdr_length = 115 (IP_VERSION << 4) | (len >> 2); 116 sctp->sctp_hdr_len = len + sizeof (sctp_hdr_t); 117 118 if (sctp->sctp_current) { 119 /* 120 * Could be setting options before setting up connection. 121 */ 122 sctp_set_ulp_prop(sctp); 123 } 124 return (0); 125 } 126 127 static int 128 sctp_get_status(sctp_t *sctp, void *ptr) 129 { 130 struct sctp_status *sstat = ptr; 131 sctp_faddr_t *fp; 132 struct sockaddr_in *sin; 133 struct sockaddr_in6 *sin6; 134 struct sctp_paddrinfo *sp; 135 mblk_t *meta, *mp; 136 int i; 137 138 sstat->sstat_state = sctp->sctp_state; 139 sstat->sstat_rwnd = sctp->sctp_frwnd; 140 141 sp = &sstat->sstat_primary; 142 if (!sctp->sctp_primary) { 143 bzero(sp, sizeof (*sp)); 144 goto noprim; 145 } 146 fp = sctp->sctp_primary; 147 148 if (fp->isv4) { 149 sin = (struct sockaddr_in *)&sp->spinfo_address; 150 sin->sin_family = AF_INET; 151 sin->sin_port = sctp->sctp_fport; 152 IN6_V4MAPPED_TO_INADDR(&fp->faddr, &sin->sin_addr); 153 sp->spinfo_mtu = sctp->sctp_hdr_len; 154 } else { 155 sin6 = (struct sockaddr_in6 *)&sp->spinfo_address; 156 sin6->sin6_family = AF_INET6; 157 sin6->sin6_port = sctp->sctp_fport; 158 sin6->sin6_addr = fp->faddr; 159 sp->spinfo_mtu = sctp->sctp_hdr6_len; 160 } 161 sp->spinfo_state = fp->state == SCTP_FADDRS_ALIVE ? SCTP_ACTIVE : 162 SCTP_INACTIVE; 163 sp->spinfo_cwnd = fp->cwnd; 164 sp->spinfo_srtt = fp->srtt; 165 sp->spinfo_rto = fp->rto; 166 sp->spinfo_mtu += fp->sfa_pmss; 167 168 noprim: 169 sstat->sstat_unackdata = 0; 170 sstat->sstat_penddata = 0; 171 sstat->sstat_instrms = sctp->sctp_num_istr; 172 sstat->sstat_outstrms = sctp->sctp_num_ostr; 173 sstat->sstat_fragmentation_point = sctp->sctp_mss - 174 sizeof (sctp_data_hdr_t); 175 176 /* count unack'd */ 177 for (meta = sctp->sctp_xmit_head; meta; meta = meta->b_next) { 178 for (mp = meta->b_cont; mp; mp = mp->b_next) { 179 if (!SCTP_CHUNK_ISSENT(mp)) { 180 break; 181 } 182 if (!SCTP_CHUNK_ISACKED(mp)) { 183 sstat->sstat_unackdata++; 184 } 185 } 186 } 187 188 /* 189 * Count penddata chunks. We can only count chunks in SCTP (not 190 * data already delivered to socket layer). 191 */ 192 if (sctp->sctp_instr != NULL) { 193 for (i = 0; i < sctp->sctp_num_istr; i++) { 194 for (meta = sctp->sctp_instr[i].istr_reass; 195 meta != NULL; meta = meta->b_next) { 196 for (mp = meta->b_cont; mp; mp = mp->b_cont) { 197 if (DB_TYPE(mp) != M_CTL) { 198 sstat->sstat_penddata++; 199 } 200 } 201 } 202 } 203 } 204 /* Un-Ordered Frag list */ 205 for (meta = sctp->sctp_uo_frags; meta != NULL; meta = meta->b_next) 206 sstat->sstat_penddata++; 207 208 return (sizeof (*sstat)); 209 } 210 211 /* 212 * SCTP_GET_PEER_ADDR_INFO 213 */ 214 static int 215 sctp_get_paddrinfo(sctp_t *sctp, void *ptr, socklen_t *optlen) 216 { 217 struct sctp_paddrinfo *infop = ptr; 218 struct sockaddr_in *sin4; 219 struct sockaddr_in6 *sin6; 220 in6_addr_t faddr; 221 sctp_faddr_t *fp; 222 223 switch (infop->spinfo_address.ss_family) { 224 case AF_INET: 225 sin4 = (struct sockaddr_in *)&infop->spinfo_address; 226 IN6_INADDR_TO_V4MAPPED(&sin4->sin_addr, &faddr); 227 break; 228 case AF_INET6: 229 sin6 = (struct sockaddr_in6 *)&infop->spinfo_address; 230 faddr = sin6->sin6_addr; 231 break; 232 default: 233 return (EAFNOSUPPORT); 234 } 235 236 if ((fp = sctp_lookup_faddr(sctp, &faddr)) == NULL) 237 return (EINVAL); 238 239 infop->spinfo_state = (fp->state == SCTP_FADDRS_ALIVE) ? SCTP_ACTIVE : 240 SCTP_INACTIVE; 241 infop->spinfo_cwnd = fp->cwnd; 242 infop->spinfo_srtt = TICK_TO_MSEC(fp->srtt); 243 infop->spinfo_rto = TICK_TO_MSEC(fp->rto); 244 infop->spinfo_mtu = fp->sfa_pmss; 245 246 *optlen = sizeof (struct sctp_paddrinfo); 247 return (0); 248 } 249 250 /* 251 * SCTP_RTOINFO 252 */ 253 static int 254 sctp_get_rtoinfo(sctp_t *sctp, void *ptr) 255 { 256 struct sctp_rtoinfo *srto = ptr; 257 258 srto->srto_initial = TICK_TO_MSEC(sctp->sctp_rto_initial); 259 srto->srto_max = TICK_TO_MSEC(sctp->sctp_rto_max); 260 srto->srto_min = TICK_TO_MSEC(sctp->sctp_rto_min); 261 262 return (sizeof (*srto)); 263 } 264 265 static int 266 sctp_set_rtoinfo(sctp_t *sctp, const void *invalp, uint_t inlen) 267 { 268 const struct sctp_rtoinfo *srto; 269 boolean_t ispriv; 270 sctp_stack_t *sctps = sctp->sctp_sctps; 271 272 if (inlen < sizeof (*srto)) { 273 return (EINVAL); 274 } 275 srto = invalp; 276 277 ispriv = secpolicy_ip_config(sctp->sctp_credp, B_TRUE) == 0; 278 279 /* 280 * Bounds checking. Priviledged user can set the RTO initial 281 * outside the ndd boundary. 282 */ 283 if (srto->srto_initial != 0 && 284 (!ispriv && (srto->srto_initial < sctps->sctps_rto_initialg_low || 285 srto->srto_initial > sctps->sctps_rto_initialg_high))) { 286 return (EINVAL); 287 } 288 if (srto->srto_max != 0 && 289 (!ispriv && (srto->srto_max < sctps->sctps_rto_maxg_low || 290 srto->srto_max > sctps->sctps_rto_maxg_high))) { 291 return (EINVAL); 292 } 293 if (srto->srto_min != 0 && 294 (!ispriv && (srto->srto_min < sctps->sctps_rto_ming_low || 295 srto->srto_min > sctps->sctps_rto_ming_high))) { 296 return (EINVAL); 297 } 298 299 if (srto->srto_initial != 0) { 300 sctp->sctp_rto_initial = MSEC_TO_TICK(srto->srto_initial); 301 } 302 if (srto->srto_max != 0) { 303 sctp->sctp_rto_max = MSEC_TO_TICK(srto->srto_max); 304 } 305 if (srto->srto_min != 0) { 306 sctp->sctp_rto_min = MSEC_TO_TICK(srto->srto_min); 307 } 308 309 return (0); 310 } 311 312 /* 313 * SCTP_ASSOCINFO 314 */ 315 static int 316 sctp_get_assocparams(sctp_t *sctp, void *ptr) 317 { 318 struct sctp_assocparams *sap = ptr; 319 sctp_faddr_t *fp; 320 uint16_t i; 321 322 sap->sasoc_asocmaxrxt = sctp->sctp_pa_max_rxt; 323 324 /* 325 * Count the number of peer addresses 326 */ 327 for (i = 0, fp = sctp->sctp_faddrs; fp != NULL; fp = fp->next) { 328 i++; 329 } 330 sap->sasoc_number_peer_destinations = i; 331 sap->sasoc_peer_rwnd = sctp->sctp_frwnd; 332 sap->sasoc_local_rwnd = sctp->sctp_rwnd; 333 sap->sasoc_cookie_life = TICK_TO_MSEC(sctp->sctp_cookie_lifetime); 334 335 return (sizeof (*sap)); 336 } 337 338 static int 339 sctp_set_assocparams(sctp_t *sctp, const void *invalp, uint_t inlen) 340 { 341 const struct sctp_assocparams *sap = invalp; 342 uint32_t sum = 0; 343 sctp_faddr_t *fp; 344 sctp_stack_t *sctps = sctp->sctp_sctps; 345 346 if (inlen < sizeof (*sap)) { 347 return (EINVAL); 348 } 349 350 if (sap->sasoc_asocmaxrxt) { 351 if (sctp->sctp_faddrs) { 352 /* 353 * Bounds check: as per rfc2960, assoc max retr cannot 354 * exceed the sum of all individual path max retr's. 355 */ 356 for (fp = sctp->sctp_faddrs; fp; fp = fp->next) { 357 sum += fp->max_retr; 358 } 359 if (sap->sasoc_asocmaxrxt > sum) { 360 return (EINVAL); 361 } 362 } 363 if (sap->sasoc_asocmaxrxt < sctps->sctps_pa_max_retr_low || 364 sap->sasoc_asocmaxrxt > sctps->sctps_pa_max_retr_high) { 365 /* 366 * Out of bounds. 367 */ 368 return (EINVAL); 369 } 370 } 371 if (sap->sasoc_cookie_life != 0 && 372 (sap->sasoc_cookie_life < sctps->sctps_cookie_life_low || 373 sap->sasoc_cookie_life > sctps->sctps_cookie_life_high)) { 374 return (EINVAL); 375 } 376 377 if (sap->sasoc_asocmaxrxt > 0) { 378 sctp->sctp_pa_max_rxt = sap->sasoc_asocmaxrxt; 379 } 380 if (sap->sasoc_cookie_life > 0) { 381 sctp->sctp_cookie_lifetime = MSEC_TO_TICK( 382 sap->sasoc_cookie_life); 383 } 384 return (0); 385 } 386 387 /* 388 * SCTP_INITMSG 389 */ 390 static int 391 sctp_get_initmsg(sctp_t *sctp, void *ptr) 392 { 393 struct sctp_initmsg *si = ptr; 394 395 si->sinit_num_ostreams = sctp->sctp_num_ostr; 396 si->sinit_max_instreams = sctp->sctp_num_istr; 397 si->sinit_max_attempts = sctp->sctp_max_init_rxt; 398 si->sinit_max_init_timeo = TICK_TO_MSEC(sctp->sctp_init_rto_max); 399 400 return (sizeof (*si)); 401 } 402 403 static int 404 sctp_set_initmsg(sctp_t *sctp, const void *invalp, uint_t inlen) 405 { 406 const struct sctp_initmsg *si = invalp; 407 sctp_stack_t *sctps = sctp->sctp_sctps; 408 409 if (sctp->sctp_state > SCTPS_LISTEN) { 410 return (EINVAL); 411 } 412 if (inlen < sizeof (*si)) { 413 return (EINVAL); 414 } 415 if (si->sinit_num_ostreams != 0 && 416 (si->sinit_num_ostreams < sctps->sctps_initial_out_streams_low || 417 si->sinit_num_ostreams > 418 sctps->sctps_initial_out_streams_high)) { 419 /* 420 * Out of bounds. 421 */ 422 return (EINVAL); 423 } 424 if (si->sinit_max_instreams != 0 && 425 (si->sinit_max_instreams < sctps->sctps_max_in_streams_low || 426 si->sinit_max_instreams > sctps->sctps_max_in_streams_high)) { 427 return (EINVAL); 428 } 429 if (si->sinit_max_attempts != 0 && 430 (si->sinit_max_attempts < sctps->sctps_max_init_retr_low || 431 si->sinit_max_attempts > sctps->sctps_max_init_retr_high)) { 432 return (EINVAL); 433 } 434 if (si->sinit_max_init_timeo != 0 && 435 (secpolicy_ip_config(sctp->sctp_credp, B_TRUE) != 0 && 436 (si->sinit_max_init_timeo < sctps->sctps_rto_maxg_low || 437 si->sinit_max_init_timeo > sctps->sctps_rto_maxg_high))) { 438 return (EINVAL); 439 } 440 if (si->sinit_num_ostreams != 0) 441 sctp->sctp_num_ostr = si->sinit_num_ostreams; 442 443 if (si->sinit_max_instreams != 0) 444 sctp->sctp_num_istr = si->sinit_max_instreams; 445 446 if (si->sinit_max_attempts != 0) 447 sctp->sctp_max_init_rxt = si->sinit_max_attempts; 448 449 if (si->sinit_max_init_timeo != 0) { 450 sctp->sctp_init_rto_max = 451 MSEC_TO_TICK(si->sinit_max_init_timeo); 452 } 453 return (0); 454 } 455 456 /* 457 * SCTP_PEER_ADDR_PARAMS 458 */ 459 static int 460 sctp_find_peer_fp(sctp_t *sctp, const struct sockaddr_storage *ss, 461 sctp_faddr_t **fpp) 462 { 463 struct sockaddr_in *sin; 464 struct sockaddr_in6 *sin6; 465 in6_addr_t addr; 466 467 if (ss->ss_family == AF_INET) { 468 sin = (struct sockaddr_in *)ss; 469 IN6_IPADDR_TO_V4MAPPED(sin->sin_addr.s_addr, &addr); 470 } else if (ss->ss_family == AF_INET6) { 471 sin6 = (struct sockaddr_in6 *)ss; 472 addr = sin6->sin6_addr; 473 } else if (ss->ss_family) { 474 return (EAFNOSUPPORT); 475 } 476 477 if (!ss->ss_family || 478 SCTP_IS_ADDR_UNSPEC(IN6_IS_ADDR_V4MAPPED(&addr), addr)) { 479 *fpp = NULL; 480 } else { 481 *fpp = sctp_lookup_faddr(sctp, &addr); 482 if (*fpp == NULL) { 483 return (EINVAL); 484 } 485 } 486 return (0); 487 } 488 489 static int 490 sctp_get_peer_addr_params(sctp_t *sctp, void *ptr) 491 { 492 struct sctp_paddrparams *spp = ptr; 493 sctp_faddr_t *fp; 494 int retval; 495 496 retval = sctp_find_peer_fp(sctp, &spp->spp_address, &fp); 497 if (retval) { 498 return (retval); 499 } 500 if (fp) { 501 spp->spp_hbinterval = TICK_TO_MSEC(fp->hb_interval); 502 spp->spp_pathmaxrxt = fp->max_retr; 503 } else { 504 spp->spp_hbinterval = TICK_TO_MSEC(sctp->sctp_hb_interval); 505 spp->spp_pathmaxrxt = sctp->sctp_pp_max_rxt; 506 } 507 return (sizeof (*spp)); 508 } 509 510 static int 511 sctp_set_peer_addr_params(sctp_t *sctp, const void *invalp, uint_t inlen) 512 { 513 const struct sctp_paddrparams *spp = invalp; 514 sctp_faddr_t *fp, *fp2; 515 int retval; 516 uint32_t sum = 0; 517 int64_t now; 518 sctp_stack_t *sctps = sctp->sctp_sctps; 519 520 if (inlen < sizeof (*spp)) { 521 return (EINVAL); 522 } 523 524 retval = sctp_find_peer_fp(sctp, &spp->spp_address, &fp); 525 if (retval != 0) { 526 return (retval); 527 } 528 529 if (spp->spp_hbinterval && spp->spp_hbinterval != UINT32_MAX && 530 (spp->spp_hbinterval < sctps->sctps_heartbeat_interval_low || 531 spp->spp_hbinterval > sctps->sctps_heartbeat_interval_high)) { 532 return (EINVAL); 533 } 534 if (spp->spp_pathmaxrxt && 535 (spp->spp_pathmaxrxt < sctps->sctps_pp_max_retr_low || 536 spp->spp_pathmaxrxt > sctps->sctps_pp_max_retr_high)) { 537 return (EINVAL); 538 } 539 if (spp->spp_pathmaxrxt && sctp->sctp_faddrs) { 540 for (fp2 = sctp->sctp_faddrs; fp2; fp2 = fp2->next) { 541 if (!fp || fp2 == fp) { 542 sum += spp->spp_pathmaxrxt; 543 } else { 544 sum += fp2->max_retr; 545 } 546 } 547 if (sctp->sctp_pa_max_rxt > sum) { 548 return (EINVAL); 549 } 550 } 551 552 now = lbolt64; 553 if (fp != NULL) { 554 if (spp->spp_hbinterval == UINT32_MAX) { 555 /* 556 * Send heartbeat immediatelly, don't modify the 557 * current setting. 558 */ 559 sctp_send_heartbeat(sctp, fp); 560 } else { 561 fp->hb_interval = MSEC_TO_TICK(spp->spp_hbinterval); 562 fp->hb_expiry = now + SET_HB_INTVL(fp); 563 /* 564 * Restart the heartbeat timer using the new intrvl. 565 * We need to call sctp_heartbeat_timer() to set 566 * the earliest heartbeat expiry time. 567 */ 568 sctp_heartbeat_timer(sctp); 569 } 570 if (spp->spp_pathmaxrxt) { 571 fp->max_retr = spp->spp_pathmaxrxt; 572 } 573 } else { 574 for (fp2 = sctp->sctp_faddrs; fp2 != NULL; fp2 = fp2->next) { 575 if (spp->spp_hbinterval == UINT32_MAX) { 576 /* 577 * Send heartbeat immediatelly, don't modify 578 * the current setting. 579 */ 580 sctp_send_heartbeat(sctp, fp2); 581 } else { 582 fp2->hb_interval = MSEC_TO_TICK( 583 spp->spp_hbinterval); 584 fp2->hb_expiry = now + SET_HB_INTVL(fp2); 585 } 586 if (spp->spp_pathmaxrxt) { 587 fp2->max_retr = spp->spp_pathmaxrxt; 588 } 589 } 590 if (spp->spp_hbinterval != UINT32_MAX) { 591 sctp->sctp_hb_interval = MSEC_TO_TICK( 592 spp->spp_hbinterval); 593 /* Restart the heartbeat timer using the new intrvl. */ 594 sctp_timer(sctp, sctp->sctp_heartbeat_mp, 595 sctp->sctp_hb_interval); 596 } 597 if (spp->spp_pathmaxrxt) { 598 sctp->sctp_pp_max_rxt = spp->spp_pathmaxrxt; 599 } 600 } 601 return (0); 602 } 603 604 /* 605 * SCTP_DEFAULT_SEND_PARAM 606 */ 607 static int 608 sctp_get_def_send_params(sctp_t *sctp, void *ptr) 609 { 610 struct sctp_sndrcvinfo *sinfo = ptr; 611 612 sinfo->sinfo_stream = sctp->sctp_def_stream; 613 sinfo->sinfo_ssn = 0; 614 sinfo->sinfo_flags = sctp->sctp_def_flags; 615 sinfo->sinfo_ppid = sctp->sctp_def_ppid; 616 sinfo->sinfo_context = sctp->sctp_def_context; 617 sinfo->sinfo_timetolive = sctp->sctp_def_timetolive; 618 sinfo->sinfo_tsn = 0; 619 sinfo->sinfo_cumtsn = 0; 620 621 return (sizeof (*sinfo)); 622 } 623 624 static int 625 sctp_set_def_send_params(sctp_t *sctp, const void *invalp, uint_t inlen) 626 { 627 const struct sctp_sndrcvinfo *sinfo = invalp; 628 629 if (inlen < sizeof (*sinfo)) { 630 return (EINVAL); 631 } 632 if (sinfo->sinfo_stream >= sctp->sctp_num_ostr) { 633 return (EINVAL); 634 } 635 636 sctp->sctp_def_stream = sinfo->sinfo_stream; 637 sctp->sctp_def_flags = sinfo->sinfo_flags; 638 sctp->sctp_def_ppid = sinfo->sinfo_ppid; 639 sctp->sctp_def_context = sinfo->sinfo_context; 640 sctp->sctp_def_timetolive = sinfo->sinfo_timetolive; 641 642 return (0); 643 } 644 645 static int 646 sctp_set_prim(sctp_t *sctp, const void *invalp, uint_t inlen) 647 { 648 const struct sctp_setpeerprim *pp = invalp; 649 int retval; 650 sctp_faddr_t *fp; 651 652 if (inlen < sizeof (*pp)) { 653 return (EINVAL); 654 } 655 656 retval = sctp_find_peer_fp(sctp, &pp->sspp_addr, &fp); 657 if (retval) 658 return (retval); 659 660 if (fp == NULL) 661 return (EINVAL); 662 if (fp == sctp->sctp_primary) 663 return (0); 664 sctp->sctp_primary = fp; 665 666 /* Only switch current if fp is alive */ 667 if (fp->state != SCTP_FADDRS_ALIVE || fp == sctp->sctp_current) { 668 return (0); 669 } 670 sctp_set_faddr_current(sctp, fp); 671 672 return (0); 673 } 674 675 /* Handy on off switch for socket option processing. */ 676 #define ONOFF(x) ((x) == 0 ? 0 : 1) 677 678 /* 679 * SCTP routine to get the values of options. 680 */ 681 int 682 sctp_get_opt(sctp_t *sctp, int level, int name, void *ptr, socklen_t *optlen) 683 { 684 int *i1 = (int *)ptr; 685 int retval = 0; 686 int buflen = *optlen; 687 conn_t *connp = sctp->sctp_connp; 688 ip6_pkt_t *ipp = &sctp->sctp_sticky_ipp; 689 690 /* In most cases, the return buffer is just an int */ 691 *optlen = sizeof (int32_t); 692 693 RUN_SCTP(sctp); 694 695 switch (level) { 696 case SOL_SOCKET: 697 switch (name) { 698 case SO_LINGER: { 699 struct linger *lgr = (struct linger *)ptr; 700 701 lgr->l_onoff = sctp->sctp_linger ? SO_LINGER : 0; 702 lgr->l_linger = TICK_TO_MSEC(sctp->sctp_lingertime); 703 *optlen = sizeof (struct linger); 704 break; 705 } 706 case SO_DEBUG: 707 *i1 = sctp->sctp_debug ? SO_DEBUG : 0; 708 break; 709 case SO_DONTROUTE: 710 *i1 = connp->conn_dontroute ? SO_DONTROUTE : 0; 711 break; 712 case SO_USELOOPBACK: 713 *i1 = connp->conn_loopback ? SO_USELOOPBACK : 0; 714 break; 715 case SO_BROADCAST: 716 *i1 = connp->conn_broadcast ? SO_BROADCAST : 0; 717 break; 718 case SO_REUSEADDR: 719 *i1 = connp->conn_reuseaddr ? SO_REUSEADDR : 0; 720 break; 721 case SO_DGRAM_ERRIND: 722 *i1 = sctp->sctp_dgram_errind ? SO_DGRAM_ERRIND : 0; 723 break; 724 case SO_SNDBUF: 725 *i1 = sctp->sctp_xmit_hiwater; 726 break; 727 case SO_RCVBUF: 728 *i1 = sctp->sctp_rwnd; 729 break; 730 case SO_ALLZONES: 731 *i1 = connp->conn_allzones; 732 break; 733 case SO_MAC_EXEMPT: 734 *i1 = connp->conn_mac_exempt; 735 break; 736 case SO_PROTOTYPE: 737 *i1 = IPPROTO_SCTP; 738 break; 739 case SO_DOMAIN: 740 *i1 = sctp->sctp_family; 741 break; 742 default: 743 retval = ENOPROTOOPT; 744 break; 745 } 746 break; 747 748 case IPPROTO_SCTP: 749 switch (name) { 750 case SCTP_RTOINFO: 751 if (buflen < sizeof (struct sctp_rtoinfo)) { 752 retval = EINVAL; 753 break; 754 } 755 *optlen = sctp_get_rtoinfo(sctp, ptr); 756 break; 757 case SCTP_ASSOCINFO: 758 if (buflen < sizeof (struct sctp_assocparams)) { 759 retval = EINVAL; 760 break; 761 } 762 *optlen = sctp_get_assocparams(sctp, ptr); 763 break; 764 case SCTP_INITMSG: 765 if (buflen < sizeof (struct sctp_initmsg)) { 766 retval = EINVAL; 767 break; 768 } 769 *optlen = sctp_get_initmsg(sctp, ptr); 770 break; 771 case SCTP_NODELAY: 772 *i1 = sctp->sctp_ndelay; 773 break; 774 case SCTP_AUTOCLOSE: 775 *i1 = TICK_TO_SEC(sctp->sctp_autoclose); 776 break; 777 case SCTP_ADAPTION_LAYER: 778 if (buflen < sizeof (struct sctp_setadaption)) { 779 retval = EINVAL; 780 break; 781 } 782 ((struct sctp_setadaption *)ptr)->ssb_adaption_ind = 783 sctp->sctp_tx_adaption_code; 784 break; 785 case SCTP_PEER_ADDR_PARAMS: 786 if (buflen < sizeof (struct sctp_paddrparams)) { 787 retval = EINVAL; 788 break; 789 } 790 *optlen = sctp_get_peer_addr_params(sctp, ptr); 791 break; 792 case SCTP_DEFAULT_SEND_PARAM: 793 if (buflen < sizeof (struct sctp_sndrcvinfo)) { 794 retval = EINVAL; 795 break; 796 } 797 *optlen = sctp_get_def_send_params(sctp, ptr); 798 break; 799 case SCTP_EVENTS: { 800 struct sctp_event_subscribe *ev; 801 802 if (buflen < sizeof (struct sctp_event_subscribe)) { 803 retval = EINVAL; 804 break; 805 } 806 ev = (struct sctp_event_subscribe *)ptr; 807 ev->sctp_data_io_event = 808 ONOFF(sctp->sctp_recvsndrcvinfo); 809 ev->sctp_association_event = 810 ONOFF(sctp->sctp_recvassocevnt); 811 ev->sctp_address_event = 812 ONOFF(sctp->sctp_recvpathevnt); 813 ev->sctp_send_failure_event = 814 ONOFF(sctp->sctp_recvsendfailevnt); 815 ev->sctp_peer_error_event = 816 ONOFF(sctp->sctp_recvpeererr); 817 ev->sctp_shutdown_event = 818 ONOFF(sctp->sctp_recvshutdownevnt); 819 ev->sctp_partial_delivery_event = 820 ONOFF(sctp->sctp_recvpdevnt); 821 ev->sctp_adaption_layer_event = 822 ONOFF(sctp->sctp_recvalevnt); 823 *optlen = sizeof (struct sctp_event_subscribe); 824 break; 825 } 826 case SCTP_STATUS: 827 if (buflen < sizeof (struct sctp_status)) { 828 retval = EINVAL; 829 break; 830 } 831 *optlen = sctp_get_status(sctp, ptr); 832 break; 833 case SCTP_GET_PEER_ADDR_INFO: 834 if (buflen < sizeof (struct sctp_paddrinfo)) { 835 retval = EINVAL; 836 break; 837 } 838 retval = sctp_get_paddrinfo(sctp, ptr, optlen); 839 break; 840 case SCTP_GET_NLADDRS: 841 *(int32_t *)ptr = sctp->sctp_nsaddrs; 842 break; 843 case SCTP_GET_LADDRS: { 844 int addr_cnt; 845 int addr_size; 846 847 if (sctp->sctp_family == AF_INET) 848 addr_size = sizeof (struct sockaddr_in); 849 else 850 addr_size = sizeof (struct sockaddr_in6); 851 addr_cnt = buflen / addr_size; 852 retval = sctp_getmyaddrs(sctp, ptr, &addr_cnt); 853 if (retval == 0) 854 *optlen = addr_cnt * addr_size; 855 break; 856 } 857 case SCTP_GET_NPADDRS: { 858 int i; 859 sctp_faddr_t *fp; 860 861 for (i = 0, fp = sctp->sctp_faddrs; fp != NULL; 862 i++, fp = fp->next) 863 ; 864 *(int32_t *)ptr = i; 865 break; 866 } 867 case SCTP_GET_PADDRS: { 868 int addr_cnt; 869 int addr_size; 870 871 if (sctp->sctp_family == AF_INET) 872 addr_size = sizeof (struct sockaddr_in); 873 else 874 addr_size = sizeof (struct sockaddr_in6); 875 addr_cnt = buflen / addr_size; 876 retval = sctp_getpeeraddrs(sctp, ptr, &addr_cnt); 877 if (retval == 0) 878 *optlen = addr_cnt * addr_size; 879 break; 880 } 881 case SCTP_PRSCTP: 882 *i1 = sctp->sctp_prsctp_aware ? 1 : 0; 883 break; 884 case SCTP_I_WANT_MAPPED_V4_ADDR: 885 case SCTP_MAXSEG: 886 case SCTP_DISABLE_FRAGMENTS: 887 /* Not yet supported. */ 888 default: 889 retval = ENOPROTOOPT; 890 break; 891 } 892 break; 893 894 case IPPROTO_IP: 895 if (sctp->sctp_family != AF_INET) { 896 retval = EINVAL; 897 break; 898 } 899 switch (name) { 900 case IP_OPTIONS: 901 case T_IP_OPTIONS: { 902 /* 903 * This is compatible with BSD in that in only return 904 * the reverse source route with the final destination 905 * as the last entry. The first 4 bytes of the option 906 * will contain the final destination. Allocate a 907 * buffer large enough to hold all the options, we 908 * add IP_ADDR_LEN to SCTP_MAX_IP_OPTIONS_LENGTH since 909 * ip_opt_get_user() adds the final destination 910 * at the start. 911 */ 912 char *opt_ptr; 913 int opt_len; 914 uchar_t obuf[SCTP_MAX_IP_OPTIONS_LENGTH + IP_ADDR_LEN]; 915 916 opt_ptr = (char *)sctp->sctp_ipha + 917 IP_SIMPLE_HDR_LENGTH; 918 opt_len = (char *)sctp->sctp_sctph - opt_ptr; 919 /* Caller ensures enough space */ 920 if (opt_len > 0) { 921 /* 922 * TODO: Do we have to handle getsockopt on an 923 * initiator as well? 924 */ 925 opt_len = ip_opt_get_user(sctp->sctp_ipha, 926 obuf); 927 ASSERT(opt_len <= sizeof (obuf)); 928 } else { 929 opt_len = 0; 930 } 931 if (buflen < opt_len) { 932 /* Silently truncate */ 933 opt_len = buflen; 934 } 935 *optlen = opt_len; 936 bcopy(obuf, ptr, opt_len); 937 break; 938 } 939 case IP_TOS: 940 case T_IP_TOS: 941 *i1 = (int)sctp->sctp_ipha->ipha_type_of_service; 942 break; 943 case IP_TTL: 944 *i1 = (int)sctp->sctp_ipha->ipha_ttl; 945 break; 946 case IP_NEXTHOP: 947 if (connp->conn_nexthop_set) { 948 *(ipaddr_t *)ptr = connp->conn_nexthop_v4; 949 *optlen = sizeof (ipaddr_t); 950 } else { 951 *optlen = 0; 952 } 953 break; 954 default: 955 retval = ENOPROTOOPT; 956 break; 957 } 958 break; 959 case IPPROTO_IPV6: 960 if (sctp->sctp_family != AF_INET6) { 961 retval = EINVAL; 962 break; 963 } 964 switch (name) { 965 case IPV6_UNICAST_HOPS: 966 *i1 = (unsigned int) sctp->sctp_ip6h->ip6_hops; 967 break; /* goto sizeof (int) option return */ 968 case IPV6_RECVPKTINFO: 969 if (sctp->sctp_ipv6_recvancillary & 970 SCTP_IPV6_RECVPKTINFO) { 971 *i1 = 1; 972 } else { 973 *i1 = 0; 974 } 975 break; /* goto sizeof (int) option return */ 976 case IPV6_RECVHOPLIMIT: 977 if (sctp->sctp_ipv6_recvancillary & 978 SCTP_IPV6_RECVHOPLIMIT) { 979 *i1 = 1; 980 } else { 981 *i1 = 0; 982 } 983 break; /* goto sizeof (int) option return */ 984 case IPV6_RECVHOPOPTS: 985 if (sctp->sctp_ipv6_recvancillary & 986 SCTP_IPV6_RECVHOPOPTS) { 987 *i1 = 1; 988 } else { 989 *i1 = 0; 990 } 991 break; /* goto sizeof (int) option return */ 992 case IPV6_RECVDSTOPTS: 993 if (sctp->sctp_ipv6_recvancillary & 994 SCTP_IPV6_RECVDSTOPTS) { 995 *i1 = 1; 996 } else { 997 *i1 = 0; 998 } 999 break; /* goto sizeof (int) option return */ 1000 case IPV6_RECVRTHDR: 1001 if (sctp->sctp_ipv6_recvancillary & 1002 SCTP_IPV6_RECVRTHDR) { 1003 *i1 = 1; 1004 } else { 1005 *i1 = 0; 1006 } 1007 break; /* goto sizeof (int) option return */ 1008 case IPV6_RECVRTHDRDSTOPTS: 1009 if (sctp->sctp_ipv6_recvancillary & 1010 SCTP_IPV6_RECVRTDSTOPTS) { 1011 *i1 = 1; 1012 } else { 1013 *i1 = 0; 1014 } 1015 break; /* goto sizeof (int) option return */ 1016 case IPV6_PKTINFO: { 1017 struct in6_pktinfo *pkti; 1018 1019 if (buflen < sizeof (struct in6_pktinfo)) { 1020 retval = EINVAL; 1021 break; 1022 } 1023 pkti = (struct in6_pktinfo *)ptr; 1024 if (ipp->ipp_fields & IPPF_IFINDEX) 1025 pkti->ipi6_ifindex = ipp->ipp_ifindex; 1026 else 1027 pkti->ipi6_ifindex = 0; 1028 if (ipp->ipp_fields & IPPF_ADDR) 1029 pkti->ipi6_addr = ipp->ipp_addr; 1030 else 1031 pkti->ipi6_addr = ipv6_all_zeros; 1032 *optlen = sizeof (struct in6_pktinfo); 1033 break; 1034 } 1035 case IPV6_NEXTHOP: { 1036 sin6_t *sin6; 1037 1038 if (buflen < sizeof (sin6_t)) { 1039 retval = EINVAL; 1040 break; 1041 } 1042 sin6 = (sin6_t *)ptr; 1043 if (!(ipp->ipp_fields & IPPF_NEXTHOP)) 1044 break; 1045 *sin6 = sctp_sin6_null; 1046 sin6->sin6_family = AF_INET6; 1047 sin6->sin6_addr = ipp->ipp_nexthop; 1048 *optlen = sizeof (sin6_t); 1049 break; 1050 } 1051 case IPV6_HOPOPTS: { 1052 int len; 1053 1054 if (!(ipp->ipp_fields & IPPF_HOPOPTS)) 1055 break; 1056 len = ipp->ipp_hopoptslen - sctp->sctp_v6label_len; 1057 if (len <= 0) 1058 break; 1059 if (buflen < len) { 1060 retval = EINVAL; 1061 break; 1062 } 1063 bcopy((char *)ipp->ipp_hopopts + 1064 sctp->sctp_v6label_len, ptr, len); 1065 if (sctp->sctp_v6label_len > 0) { 1066 char *cptr = ptr; 1067 1068 /* 1069 * If the label length is greater than zero, 1070 * then we need to hide the label from user. 1071 * Make it look as though a normal Hop-By-Hop 1072 * Options Header is present here. 1073 */ 1074 cptr[0] = ((char *)ipp->ipp_hopopts)[0]; 1075 cptr[1] = (len + 7) / 8 - 1; 1076 } 1077 *optlen = len; 1078 break; 1079 } 1080 case IPV6_RTHDRDSTOPTS: 1081 if (!(ipp->ipp_fields & IPPF_RTDSTOPTS)) 1082 break; 1083 if (buflen < ipp->ipp_rtdstoptslen) { 1084 retval = EINVAL; 1085 break; 1086 } 1087 bcopy(ipp->ipp_rtdstopts, ptr, ipp->ipp_rtdstoptslen); 1088 *optlen = ipp->ipp_rtdstoptslen; 1089 break; 1090 case IPV6_RTHDR: 1091 if (!(ipp->ipp_fields & IPPF_RTHDR)) 1092 break; 1093 if (buflen < ipp->ipp_rthdrlen) { 1094 retval = EINVAL; 1095 break; 1096 } 1097 bcopy(ipp->ipp_rthdr, ptr, ipp->ipp_rthdrlen); 1098 *optlen = ipp->ipp_rthdrlen; 1099 break; 1100 case IPV6_DSTOPTS: 1101 if (!(ipp->ipp_fields & IPPF_DSTOPTS)) 1102 break; 1103 if (buflen < ipp->ipp_dstoptslen) { 1104 retval = EINVAL; 1105 break; 1106 } 1107 bcopy(ipp->ipp_dstopts, ptr, ipp->ipp_dstoptslen); 1108 *optlen = ipp->ipp_dstoptslen; 1109 break; 1110 case IPV6_V6ONLY: 1111 *i1 = sctp->sctp_connp->conn_ipv6_v6only; 1112 break; 1113 default: 1114 retval = ENOPROTOOPT; 1115 break; 1116 } 1117 break; 1118 1119 default: 1120 retval = ENOPROTOOPT; 1121 break; 1122 } 1123 WAKE_SCTP(sctp); 1124 return (retval); 1125 } 1126 1127 int 1128 sctp_set_opt(sctp_t *sctp, int level, int name, const void *invalp, 1129 socklen_t inlen) 1130 { 1131 ip6_pkt_t *ipp = &sctp->sctp_sticky_ipp; 1132 int *i1 = (int *)invalp; 1133 boolean_t onoff; 1134 int retval = 0, addrcnt; 1135 conn_t *connp = sctp->sctp_connp; 1136 sctp_stack_t *sctps = sctp->sctp_sctps; 1137 1138 /* In all cases, the size of the option must be bigger than int */ 1139 if (inlen >= sizeof (int32_t)) { 1140 onoff = ONOFF(*i1); 1141 } 1142 retval = 0; 1143 1144 RUN_SCTP(sctp); 1145 1146 switch (level) { 1147 case SOL_SOCKET: 1148 if (inlen < sizeof (int32_t)) { 1149 retval = EINVAL; 1150 break; 1151 } 1152 switch (name) { 1153 case SO_LINGER: { 1154 struct linger *lgr; 1155 1156 if (inlen != sizeof (struct linger)) { 1157 retval = EINVAL; 1158 break; 1159 } 1160 lgr = (struct linger *)invalp; 1161 if (lgr->l_onoff != 0) { 1162 sctp->sctp_linger = 1; 1163 sctp->sctp_lingertime = MSEC_TO_TICK( 1164 lgr->l_linger); 1165 } else { 1166 sctp->sctp_linger = 0; 1167 sctp->sctp_lingertime = 0; 1168 } 1169 break; 1170 } 1171 case SO_DEBUG: 1172 sctp->sctp_debug = onoff; 1173 break; 1174 case SO_KEEPALIVE: 1175 break; 1176 case SO_DONTROUTE: 1177 /* 1178 * SO_DONTROUTE, SO_USELOOPBACK and SO_BROADCAST are 1179 * only of interest to IP. 1180 */ 1181 connp->conn_dontroute = onoff; 1182 break; 1183 case SO_USELOOPBACK: 1184 connp->conn_loopback = onoff; 1185 break; 1186 case SO_BROADCAST: 1187 connp->conn_broadcast = onoff; 1188 break; 1189 case SO_REUSEADDR: 1190 connp->conn_reuseaddr = onoff; 1191 break; 1192 case SO_DGRAM_ERRIND: 1193 sctp->sctp_dgram_errind = onoff; 1194 break; 1195 case SO_SNDBUF: 1196 if (*i1 > sctps->sctps_max_buf) { 1197 retval = ENOBUFS; 1198 break; 1199 } 1200 if (*i1 < 0) { 1201 retval = EINVAL; 1202 break; 1203 } 1204 sctp->sctp_xmit_hiwater = *i1; 1205 if (sctps->sctps_snd_lowat_fraction != 0) 1206 sctp->sctp_xmit_lowater = 1207 sctp->sctp_xmit_hiwater / 1208 sctps->sctps_snd_lowat_fraction; 1209 break; 1210 case SO_RCVBUF: 1211 if (*i1 > sctps->sctps_max_buf) { 1212 retval = ENOBUFS; 1213 break; 1214 } 1215 /* Silently ignore zero */ 1216 if (*i1 != 0) { 1217 /* 1218 * Insist on a receive window that is at least 1219 * sctp_recv_hiwat_minmss * MSS (default 4*MSS) 1220 * to avoid funny interactions of Nagle 1221 * algorithm, SWS avoidance and delayed 1222 * acknowledgement. 1223 */ 1224 *i1 = MAX(*i1, 1225 sctps->sctps_recv_hiwat_minmss * 1226 sctp->sctp_mss); 1227 sctp->sctp_rwnd = *i1; 1228 sctp->sctp_irwnd = sctp->sctp_rwnd; 1229 } 1230 /* 1231 * XXX should we return the rwnd here 1232 * and sctp_opt_get ? 1233 */ 1234 break; 1235 case SO_ALLZONES: 1236 if (secpolicy_ip(sctp->sctp_credp, OP_CONFIG, 1237 B_TRUE)) { 1238 retval = EACCES; 1239 break; 1240 } 1241 if (sctp->sctp_state >= SCTPS_BOUND) { 1242 retval = EINVAL; 1243 break; 1244 } 1245 sctp->sctp_allzones = onoff; 1246 break; 1247 case SO_MAC_EXEMPT: 1248 if (secpolicy_net_mac_aware(sctp->sctp_credp) != 0) { 1249 retval = EACCES; 1250 break; 1251 } 1252 if (sctp->sctp_state >= SCTPS_BOUND) { 1253 retval = EINVAL; 1254 break; 1255 } 1256 connp->conn_mac_exempt = onoff; 1257 break; 1258 default: 1259 retval = ENOPROTOOPT; 1260 break; 1261 } 1262 break; 1263 1264 case IPPROTO_SCTP: 1265 if (inlen < sizeof (int32_t)) { 1266 retval = EINVAL; 1267 break; 1268 } 1269 switch (name) { 1270 case SCTP_RTOINFO: 1271 retval = sctp_set_rtoinfo(sctp, invalp, inlen); 1272 break; 1273 case SCTP_ASSOCINFO: 1274 retval = sctp_set_assocparams(sctp, invalp, inlen); 1275 break; 1276 case SCTP_INITMSG: 1277 retval = sctp_set_initmsg(sctp, invalp, inlen); 1278 break; 1279 case SCTP_NODELAY: 1280 sctp->sctp_ndelay = ONOFF(*i1); 1281 break; 1282 case SCTP_AUTOCLOSE: 1283 if (SEC_TO_TICK(*i1) < 0) { 1284 retval = EINVAL; 1285 break; 1286 } 1287 /* Convert the number of seconds to ticks. */ 1288 sctp->sctp_autoclose = SEC_TO_TICK(*i1); 1289 sctp_heartbeat_timer(sctp); 1290 break; 1291 case SCTP_SET_PEER_PRIMARY_ADDR: 1292 retval = sctp_set_peerprim(sctp, invalp, inlen); 1293 break; 1294 case SCTP_PRIMARY_ADDR: 1295 retval = sctp_set_prim(sctp, invalp, inlen); 1296 break; 1297 case SCTP_ADAPTION_LAYER: { 1298 struct sctp_setadaption *ssb; 1299 1300 if (inlen < sizeof (struct sctp_setadaption)) { 1301 retval = EINVAL; 1302 break; 1303 } 1304 ssb = (struct sctp_setadaption *)invalp; 1305 sctp->sctp_send_adaption = 1; 1306 sctp->sctp_tx_adaption_code = ssb->ssb_adaption_ind; 1307 break; 1308 } 1309 case SCTP_PEER_ADDR_PARAMS: 1310 retval = sctp_set_peer_addr_params(sctp, invalp, 1311 inlen); 1312 break; 1313 case SCTP_DEFAULT_SEND_PARAM: 1314 retval = sctp_set_def_send_params(sctp, invalp, inlen); 1315 break; 1316 case SCTP_EVENTS: { 1317 struct sctp_event_subscribe *ev; 1318 1319 if (inlen < sizeof (struct sctp_event_subscribe)) { 1320 retval = EINVAL; 1321 break; 1322 } 1323 ev = (struct sctp_event_subscribe *)invalp; 1324 sctp->sctp_recvsndrcvinfo = 1325 ONOFF(ev->sctp_data_io_event); 1326 sctp->sctp_recvassocevnt = 1327 ONOFF(ev->sctp_association_event); 1328 sctp->sctp_recvpathevnt = 1329 ONOFF(ev->sctp_address_event); 1330 sctp->sctp_recvsendfailevnt = 1331 ONOFF(ev->sctp_send_failure_event); 1332 sctp->sctp_recvpeererr = 1333 ONOFF(ev->sctp_peer_error_event); 1334 sctp->sctp_recvshutdownevnt = 1335 ONOFF(ev->sctp_shutdown_event); 1336 sctp->sctp_recvpdevnt = 1337 ONOFF(ev->sctp_partial_delivery_event); 1338 sctp->sctp_recvalevnt = 1339 ONOFF(ev->sctp_adaption_layer_event); 1340 break; 1341 } 1342 case SCTP_ADD_ADDR: 1343 case SCTP_REM_ADDR: 1344 /* 1345 * The sctp_t has to be bound first before 1346 * the address list can be changed. 1347 */ 1348 if (sctp->sctp_state < SCTPS_BOUND) { 1349 retval = EINVAL; 1350 break; 1351 } 1352 if (sctp->sctp_family == AF_INET) { 1353 addrcnt = inlen / sizeof (struct sockaddr_in); 1354 } else { 1355 ASSERT(sctp->sctp_family == AF_INET6); 1356 addrcnt = inlen / sizeof (struct sockaddr_in6); 1357 } 1358 if (name == SCTP_ADD_ADDR) { 1359 retval = sctp_bind_add(sctp, invalp, addrcnt, 1360 B_TRUE, sctp->sctp_lport); 1361 } else { 1362 retval = sctp_bind_del(sctp, invalp, addrcnt, 1363 B_TRUE); 1364 } 1365 break; 1366 case SCTP_UC_SWAP: { 1367 struct sctp_uc_swap *us; 1368 1369 /* 1370 * Change handle & upcalls. 1371 */ 1372 if (inlen < sizeof (*us)) { 1373 retval = EINVAL; 1374 break; 1375 } 1376 us = (struct sctp_uc_swap *)invalp; 1377 sctp->sctp_ulpd = us->sus_handle; 1378 bcopy(us->sus_upcalls, &sctp->sctp_upcalls, 1379 sizeof (sctp_upcalls_t)); 1380 break; 1381 } 1382 case SCTP_PRSCTP: 1383 sctp->sctp_prsctp_aware = onoff; 1384 break; 1385 case SCTP_I_WANT_MAPPED_V4_ADDR: 1386 case SCTP_MAXSEG: 1387 case SCTP_DISABLE_FRAGMENTS: 1388 /* Not yet supported. */ 1389 default: 1390 retval = ENOPROTOOPT; 1391 break; 1392 } 1393 break; 1394 1395 case IPPROTO_IP: 1396 if (sctp->sctp_family != AF_INET) { 1397 retval = ENOPROTOOPT; 1398 break; 1399 } 1400 if ((name != IP_OPTIONS) && (inlen < sizeof (int32_t))) { 1401 retval = EINVAL; 1402 break; 1403 } 1404 switch (name) { 1405 case IP_OPTIONS: 1406 case T_IP_OPTIONS: 1407 retval = sctp_opt_set_header(sctp, invalp, inlen); 1408 break; 1409 case IP_TOS: 1410 case T_IP_TOS: 1411 sctp->sctp_ipha->ipha_type_of_service = (uchar_t)*i1; 1412 break; 1413 case IP_TTL: 1414 sctp->sctp_ipha->ipha_ttl = (uchar_t)*i1; 1415 break; 1416 case IP_SEC_OPT: 1417 /* 1418 * We should not allow policy setting after 1419 * we start listening for connections. 1420 */ 1421 if (sctp->sctp_state >= SCTPS_LISTEN) { 1422 retval = EINVAL; 1423 } else { 1424 retval = ipsec_set_req(sctp->sctp_credp, 1425 sctp->sctp_connp, (ipsec_req_t *)invalp); 1426 } 1427 break; 1428 /* IP level options */ 1429 case IP_RECVIF: 1430 connp->conn_recvif = onoff; 1431 break; 1432 case IP_RECVSLLA: 1433 connp->conn_recvslla = onoff; 1434 break; 1435 case IP_UNSPEC_SRC: 1436 connp->conn_unspec_src = onoff; 1437 break; 1438 case IP_NEXTHOP: { 1439 ipaddr_t addr = *i1; 1440 ipif_t *ipif = NULL; 1441 ill_t *ill; 1442 ip_stack_t *ipst = sctps->sctps_netstack->netstack_ip; 1443 1444 if (secpolicy_ip(sctp->sctp_credp, OP_CONFIG, 1445 B_TRUE) == 0) { 1446 ipif = 1447 ipif_lookup_onlink_addr(addr, 1448 connp->conn_zoneid, ipst); 1449 if (ipif == NULL) { 1450 retval = EHOSTUNREACH; 1451 break; 1452 } 1453 ill = ipif->ipif_ill; 1454 mutex_enter(&ill->ill_lock); 1455 if ((ill->ill_state_flags & ILL_CONDEMNED) || 1456 (ipif->ipif_state_flags & IPIF_CONDEMNED)) { 1457 mutex_exit(&ill->ill_lock); 1458 ipif_refrele(ipif); 1459 retval = EHOSTUNREACH; 1460 break; 1461 } 1462 mutex_exit(&ill->ill_lock); 1463 ipif_refrele(ipif); 1464 mutex_enter(&connp->conn_lock); 1465 connp->conn_nexthop_v4 = addr; 1466 connp->conn_nexthop_set = B_TRUE; 1467 mutex_exit(&connp->conn_lock); 1468 } 1469 break; 1470 } 1471 default: 1472 retval = ENOPROTOOPT; 1473 break; 1474 } 1475 break; 1476 case IPPROTO_IPV6: { 1477 if (sctp->sctp_family != AF_INET6) { 1478 retval = ENOPROTOOPT; 1479 break; 1480 } 1481 1482 switch (name) { 1483 case IPV6_UNICAST_HOPS: 1484 if (inlen < sizeof (int32_t)) { 1485 retval = EINVAL; 1486 break; 1487 } 1488 if (*i1 < -1 || *i1 > IPV6_MAX_HOPS) { 1489 retval = EINVAL; 1490 break; 1491 } 1492 if (*i1 == -1) { 1493 ipp->ipp_unicast_hops = 1494 sctps->sctps_ipv6_hoplimit; 1495 ipp->ipp_fields &= ~IPPF_UNICAST_HOPS; 1496 } else { 1497 ipp->ipp_unicast_hops = (uint8_t)*i1; 1498 ipp->ipp_fields |= IPPF_UNICAST_HOPS; 1499 } 1500 retval = sctp_build_hdrs(sctp); 1501 break; 1502 case IPV6_UNSPEC_SRC: 1503 if (inlen < sizeof (int32_t)) { 1504 retval = EINVAL; 1505 break; 1506 } 1507 connp->conn_unspec_src = onoff; 1508 break; 1509 case IPV6_RECVPKTINFO: 1510 if (inlen < sizeof (int32_t)) { 1511 retval = EINVAL; 1512 break; 1513 } 1514 if (onoff) 1515 sctp->sctp_ipv6_recvancillary |= 1516 SCTP_IPV6_RECVPKTINFO; 1517 else 1518 sctp->sctp_ipv6_recvancillary &= 1519 ~SCTP_IPV6_RECVPKTINFO; 1520 /* Send it with the next msg */ 1521 sctp->sctp_recvifindex = 0; 1522 connp->conn_ip_recvpktinfo = onoff; 1523 break; 1524 case IPV6_RECVHOPLIMIT: 1525 if (inlen < sizeof (int32_t)) { 1526 retval = EINVAL; 1527 break; 1528 } 1529 if (onoff) 1530 sctp->sctp_ipv6_recvancillary |= 1531 SCTP_IPV6_RECVHOPLIMIT; 1532 else 1533 sctp->sctp_ipv6_recvancillary &= 1534 ~SCTP_IPV6_RECVHOPLIMIT; 1535 sctp->sctp_recvhops = 0xffffffffU; 1536 connp->conn_ipv6_recvhoplimit = onoff; 1537 break; 1538 case IPV6_RECVHOPOPTS: 1539 if (inlen < sizeof (int32_t)) { 1540 retval = EINVAL; 1541 break; 1542 } 1543 if (onoff) 1544 sctp->sctp_ipv6_recvancillary |= 1545 SCTP_IPV6_RECVHOPOPTS; 1546 else 1547 sctp->sctp_ipv6_recvancillary &= 1548 ~SCTP_IPV6_RECVHOPOPTS; 1549 connp->conn_ipv6_recvhopopts = onoff; 1550 break; 1551 case IPV6_RECVDSTOPTS: 1552 if (inlen < sizeof (int32_t)) { 1553 retval = EINVAL; 1554 break; 1555 } 1556 if (onoff) 1557 sctp->sctp_ipv6_recvancillary |= 1558 SCTP_IPV6_RECVDSTOPTS; 1559 else 1560 sctp->sctp_ipv6_recvancillary &= 1561 ~SCTP_IPV6_RECVDSTOPTS; 1562 connp->conn_ipv6_recvdstopts = onoff; 1563 break; 1564 case IPV6_RECVRTHDR: 1565 if (inlen < sizeof (int32_t)) { 1566 retval = EINVAL; 1567 break; 1568 } 1569 if (onoff) 1570 sctp->sctp_ipv6_recvancillary |= 1571 SCTP_IPV6_RECVRTHDR; 1572 else 1573 sctp->sctp_ipv6_recvancillary &= 1574 ~SCTP_IPV6_RECVRTHDR; 1575 connp->conn_ipv6_recvrthdr = onoff; 1576 break; 1577 case IPV6_RECVRTHDRDSTOPTS: 1578 if (inlen < sizeof (int32_t)) { 1579 retval = EINVAL; 1580 break; 1581 } 1582 if (onoff) 1583 sctp->sctp_ipv6_recvancillary |= 1584 SCTP_IPV6_RECVRTDSTOPTS; 1585 else 1586 sctp->sctp_ipv6_recvancillary &= 1587 ~SCTP_IPV6_RECVRTDSTOPTS; 1588 connp->conn_ipv6_recvrtdstopts = onoff; 1589 break; 1590 case IPV6_PKTINFO: 1591 if (inlen != 0 && 1592 inlen != sizeof (struct in6_pktinfo)) { 1593 retval = EINVAL; 1594 break; 1595 } 1596 1597 if (inlen == 0) { 1598 ipp->ipp_fields &= ~(IPPF_IFINDEX |IPPF_ADDR); 1599 } else { 1600 struct in6_pktinfo *pkti; 1601 1602 pkti = (struct in6_pktinfo *)invalp; 1603 /* XXX Need to check if the index exists */ 1604 ipp->ipp_ifindex = pkti->ipi6_ifindex; 1605 ipp->ipp_addr = pkti->ipi6_addr; 1606 if (ipp->ipp_ifindex != 0) 1607 ipp->ipp_fields |= IPPF_IFINDEX; 1608 else 1609 ipp->ipp_fields &= ~IPPF_IFINDEX; 1610 if (!IN6_IS_ADDR_UNSPECIFIED(&ipp->ipp_addr)) 1611 ipp->ipp_fields |= IPPF_ADDR; 1612 else 1613 ipp->ipp_fields &= ~IPPF_ADDR; 1614 } 1615 retval = sctp_build_hdrs(sctp); 1616 break; 1617 case IPV6_NEXTHOP: { 1618 struct sockaddr_in6 *sin6; 1619 ip_stack_t *ipst = sctps->sctps_netstack->netstack_ip; 1620 1621 if (inlen != 0 && inlen != sizeof (sin6_t)) { 1622 retval = EINVAL; 1623 break; 1624 } 1625 1626 if (inlen == 0) { 1627 ipp->ipp_fields &= ~IPPF_NEXTHOP; 1628 } else { 1629 sin6 = (struct sockaddr_in6 *)invalp; 1630 if (sin6->sin6_family != AF_INET6) { 1631 retval = EAFNOSUPPORT; 1632 break; 1633 } 1634 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) { 1635 retval = EADDRNOTAVAIL; 1636 break; 1637 } 1638 ipp->ipp_nexthop = sin6->sin6_addr; 1639 if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) { 1640 ipp->ipp_fields &= ~IPPF_NEXTHOP; 1641 } else { 1642 ire_t *ire; 1643 1644 ire = ire_route_lookup_v6( 1645 &sin6->sin6_addr, NULL, NULL, 0, 1646 NULL, NULL, ALL_ZONES, NULL, 1647 MATCH_IRE_DEFAULT, ipst); 1648 if (ire == NULL) { 1649 retval = EHOSTUNREACH; 1650 break; 1651 } 1652 ire_refrele(ire); 1653 ipp->ipp_fields |= IPPF_NEXTHOP; 1654 } 1655 } 1656 retval = sctp_build_hdrs(sctp); 1657 break; 1658 } 1659 case IPV6_HOPOPTS: { 1660 ip6_hbh_t *hopts = (ip6_hbh_t *)invalp; 1661 1662 if (inlen != 0 && 1663 inlen != (8 * (hopts->ip6h_len + 1))) { 1664 retval = EINVAL; 1665 break; 1666 } 1667 1668 retval = optcom_pkt_set((uchar_t *)invalp, inlen, 1669 B_TRUE, (uchar_t **)&ipp->ipp_hopopts, 1670 &ipp->ipp_hopoptslen, sctp->sctp_v6label_len); 1671 if (retval != 0) 1672 break; 1673 if (ipp->ipp_hopoptslen == 0) 1674 ipp->ipp_fields &= ~IPPF_HOPOPTS; 1675 else 1676 ipp->ipp_fields |= IPPF_HOPOPTS; 1677 retval = sctp_build_hdrs(sctp); 1678 break; 1679 } 1680 case IPV6_RTHDRDSTOPTS: { 1681 ip6_dest_t *dopts = (ip6_dest_t *)invalp; 1682 1683 if (inlen != 0 && 1684 inlen != (8 * (dopts->ip6d_len + 1))) { 1685 retval = EINVAL; 1686 break; 1687 } 1688 1689 retval = optcom_pkt_set((uchar_t *)invalp, inlen, 1690 B_TRUE, (uchar_t **)&ipp->ipp_rtdstopts, 1691 &ipp->ipp_rtdstoptslen, 0); 1692 if (retval != 0) 1693 break; 1694 if (ipp->ipp_rtdstoptslen == 0) 1695 ipp->ipp_fields &= ~IPPF_RTDSTOPTS; 1696 else 1697 ipp->ipp_fields |= IPPF_RTDSTOPTS; 1698 retval = sctp_build_hdrs(sctp); 1699 break; 1700 } 1701 case IPV6_DSTOPTS: { 1702 ip6_dest_t *dopts = (ip6_dest_t *)invalp; 1703 1704 if (inlen != 0 && 1705 inlen != (8 * (dopts->ip6d_len + 1))) { 1706 retval = EINVAL; 1707 break; 1708 } 1709 1710 retval = optcom_pkt_set((uchar_t *)invalp, inlen, 1711 B_TRUE, (uchar_t **)&ipp->ipp_dstopts, 1712 &ipp->ipp_dstoptslen, 0); 1713 if (retval != 0) 1714 break; 1715 if (ipp->ipp_dstoptslen == 0) 1716 ipp->ipp_fields &= ~IPPF_DSTOPTS; 1717 else 1718 ipp->ipp_fields |= IPPF_DSTOPTS; 1719 retval = sctp_build_hdrs(sctp); 1720 break; 1721 } 1722 case IPV6_RTHDR: { 1723 ip6_rthdr_t *rt = (ip6_rthdr_t *)invalp; 1724 1725 if (inlen != 0 && 1726 inlen != (8 * (rt->ip6r_len + 1))) { 1727 retval = EINVAL; 1728 break; 1729 } 1730 1731 retval = optcom_pkt_set((uchar_t *)invalp, inlen, 1732 B_TRUE, (uchar_t **)&ipp->ipp_rthdr, 1733 &ipp->ipp_rthdrlen, 0); 1734 if (retval != 0) 1735 break; 1736 if (ipp->ipp_rthdrlen == 0) 1737 ipp->ipp_fields &= ~IPPF_RTHDR; 1738 else 1739 ipp->ipp_fields |= IPPF_RTHDR; 1740 retval = sctp_build_hdrs(sctp); 1741 break; 1742 } 1743 case IPV6_SEC_OPT: 1744 /* 1745 * We should not allow policy setting after 1746 * we start listening for connections. 1747 */ 1748 if (sctp->sctp_state >= SCTPS_LISTEN) { 1749 retval = EINVAL; 1750 } else { 1751 retval = ipsec_set_req(sctp->sctp_credp, 1752 sctp->sctp_connp, (ipsec_req_t *)invalp); 1753 } 1754 break; 1755 case IPV6_V6ONLY: 1756 /* 1757 * After the bound state, setting the v6only option 1758 * is too late. 1759 */ 1760 if (sctp->sctp_state >= SCTPS_BOUND) { 1761 retval = EINVAL; 1762 } else { 1763 sctp->sctp_connp->conn_ipv6_v6only = onoff; 1764 } 1765 break; 1766 default: 1767 retval = ENOPROTOOPT; 1768 break; 1769 } 1770 break; 1771 } 1772 default: 1773 retval = ENOPROTOOPT; 1774 break; 1775 } 1776 1777 WAKE_SCTP(sctp); 1778 return (retval); 1779 } 1780 1781 /* 1782 * SCTP exported kernel interface for geting the first source address of 1783 * a sctp_t. The parameter addr is assumed to have enough space to hold 1784 * one socket address. 1785 */ 1786 int 1787 sctp_getsockname(sctp_t *sctp, struct sockaddr *addr, socklen_t *addrlen) 1788 { 1789 int err = 0; 1790 int addrcnt = 1; 1791 sin_t *sin4; 1792 sin6_t *sin6; 1793 1794 ASSERT(sctp != NULL); 1795 1796 RUN_SCTP(sctp); 1797 addr->sa_family = sctp->sctp_family; 1798 switch (sctp->sctp_family) { 1799 case AF_INET: 1800 sin4 = (sin_t *)addr; 1801 if ((sctp->sctp_state <= SCTPS_LISTEN) && 1802 sctp->sctp_bound_to_all) { 1803 sin4->sin_addr.s_addr = INADDR_ANY; 1804 sin4->sin_port = sctp->sctp_lport; 1805 } else { 1806 err = sctp_getmyaddrs(sctp, sin4, &addrcnt); 1807 if (err != 0) { 1808 *addrlen = 0; 1809 break; 1810 } 1811 } 1812 *addrlen = sizeof (struct sockaddr_in); 1813 break; 1814 case AF_INET6: 1815 sin6 = (sin6_t *)addr; 1816 if ((sctp->sctp_state <= SCTPS_LISTEN) && 1817 sctp->sctp_bound_to_all) { 1818 bzero(&sin6->sin6_addr, sizeof (sin6->sin6_addr)); 1819 sin6->sin6_port = sctp->sctp_lport; 1820 } else { 1821 err = sctp_getmyaddrs(sctp, sin6, &addrcnt); 1822 if (err != 0) { 1823 *addrlen = 0; 1824 break; 1825 } 1826 } 1827 *addrlen = sizeof (struct sockaddr_in6); 1828 sin6->sin6_flowinfo = sctp->sctp_ip6h->ip6_vcf & 1829 ~IPV6_VERS_AND_FLOW_MASK; 1830 sin6->sin6_scope_id = 0; 1831 sin6->__sin6_src_id = 0; 1832 break; 1833 } 1834 WAKE_SCTP(sctp); 1835 return (err); 1836 } 1837 1838 /* 1839 * SCTP exported kernel interface for geting the primary peer address of 1840 * a sctp_t. The parameter addr is assumed to have enough space to hold 1841 * one socket address. 1842 */ 1843 int 1844 sctp_getpeername(sctp_t *sctp, struct sockaddr *addr, socklen_t *addrlen) 1845 { 1846 int err = 0; 1847 int addrcnt = 1; 1848 sin6_t *sin6; 1849 1850 ASSERT(sctp != NULL); 1851 1852 RUN_SCTP(sctp); 1853 addr->sa_family = sctp->sctp_family; 1854 switch (sctp->sctp_family) { 1855 case AF_INET: 1856 err = sctp_getpeeraddrs(sctp, addr, &addrcnt); 1857 if (err != 0) { 1858 *addrlen = 0; 1859 break; 1860 } 1861 *addrlen = sizeof (struct sockaddr_in); 1862 break; 1863 case AF_INET6: 1864 sin6 = (sin6_t *)addr; 1865 err = sctp_getpeeraddrs(sctp, sin6, &addrcnt); 1866 if (err != 0) { 1867 *addrlen = 0; 1868 break; 1869 } 1870 *addrlen = sizeof (struct sockaddr_in6); 1871 sin6->sin6_flowinfo = 0; 1872 sin6->sin6_scope_id = 0; 1873 sin6->__sin6_src_id = 0; 1874 break; 1875 } 1876 WAKE_SCTP(sctp); 1877 return (err); 1878 } 1879 1880 /* 1881 * Return a list of IP addresses of the peer endpoint of this sctp_t. 1882 * The parameter paddrs is supposed to be either (struct sockaddr_in *) or 1883 * (struct sockaddr_in6 *) depending on the address family of the sctp_t. 1884 */ 1885 int 1886 sctp_getpeeraddrs(sctp_t *sctp, void *paddrs, int *addrcnt) 1887 { 1888 int family; 1889 struct sockaddr_in *sin4; 1890 struct sockaddr_in6 *sin6; 1891 int max; 1892 int cnt; 1893 sctp_faddr_t *fp = sctp->sctp_faddrs; 1894 in6_addr_t addr; 1895 1896 ASSERT(sctp != NULL); 1897 1898 if (sctp->sctp_faddrs == NULL) 1899 return (ENOTCONN); 1900 1901 family = sctp->sctp_family; 1902 max = *addrcnt; 1903 1904 /* If we want only one, give the primary */ 1905 if (max == 1) { 1906 addr = sctp->sctp_primary->faddr; 1907 switch (family) { 1908 case AF_INET: 1909 sin4 = paddrs; 1910 IN6_V4MAPPED_TO_INADDR(&addr, &sin4->sin_addr); 1911 sin4->sin_port = sctp->sctp_fport; 1912 sin4->sin_family = AF_INET; 1913 break; 1914 1915 case AF_INET6: 1916 sin6 = paddrs; 1917 sin6->sin6_addr = addr; 1918 sin6->sin6_port = sctp->sctp_fport; 1919 sin6->sin6_family = AF_INET6; 1920 break; 1921 } 1922 return (0); 1923 } 1924 1925 for (cnt = 0; cnt < max && fp != NULL; cnt++, fp = fp->next) { 1926 addr = fp->faddr; 1927 switch (family) { 1928 case AF_INET: 1929 ASSERT(IN6_IS_ADDR_V4MAPPED(&addr)); 1930 sin4 = (struct sockaddr_in *)paddrs + cnt; 1931 IN6_V4MAPPED_TO_INADDR(&addr, &sin4->sin_addr); 1932 sin4->sin_port = sctp->sctp_fport; 1933 sin4->sin_family = AF_INET; 1934 break; 1935 case AF_INET6: 1936 sin6 = (struct sockaddr_in6 *)paddrs + cnt; 1937 sin6->sin6_addr = addr; 1938 sin6->sin6_port = sctp->sctp_fport; 1939 sin6->sin6_family = AF_INET6; 1940 break; 1941 } 1942 } 1943 *addrcnt = cnt; 1944 return (0); 1945 } 1946