1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* 23*0Sstevel@tonic-gate * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 24*0Sstevel@tonic-gate * Use is subject to license terms. 25*0Sstevel@tonic-gate */ 26*0Sstevel@tonic-gate 27*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 28*0Sstevel@tonic-gate 29*0Sstevel@tonic-gate #include <sys/types.h> 30*0Sstevel@tonic-gate #include <sys/systm.h> 31*0Sstevel@tonic-gate #include <sys/stream.h> 32*0Sstevel@tonic-gate #include <sys/cmn_err.h> 33*0Sstevel@tonic-gate #include <sys/tihdr.h> 34*0Sstevel@tonic-gate #include <sys/kmem.h> 35*0Sstevel@tonic-gate #define _SUN_TPI_VERSION 2 36*0Sstevel@tonic-gate #include <sys/tihdr.h> 37*0Sstevel@tonic-gate #include <sys/socket.h> 38*0Sstevel@tonic-gate 39*0Sstevel@tonic-gate #include <netinet/in.h> 40*0Sstevel@tonic-gate #include <netinet/sctp.h> 41*0Sstevel@tonic-gate 42*0Sstevel@tonic-gate #include <inet/common.h> 43*0Sstevel@tonic-gate #include <inet/ip.h> 44*0Sstevel@tonic-gate #include "sctp_impl.h" 45*0Sstevel@tonic-gate 46*0Sstevel@tonic-gate static void 47*0Sstevel@tonic-gate sctp_notify(sctp_t *sctp, mblk_t *emp, size_t len) 48*0Sstevel@tonic-gate { 49*0Sstevel@tonic-gate struct T_unitdata_ind *tudi; 50*0Sstevel@tonic-gate mblk_t *mp; 51*0Sstevel@tonic-gate sctp_faddr_t *fp; 52*0Sstevel@tonic-gate int32_t rwnd = 0; 53*0Sstevel@tonic-gate 54*0Sstevel@tonic-gate if ((mp = allocb(sizeof (*tudi) + sizeof (void *) + 55*0Sstevel@tonic-gate sizeof (struct sockaddr_in6), BPRI_HI)) == NULL) { 56*0Sstevel@tonic-gate /* XXX trouble: don't want to drop events. should queue it. */ 57*0Sstevel@tonic-gate freemsg(emp); 58*0Sstevel@tonic-gate return; 59*0Sstevel@tonic-gate } 60*0Sstevel@tonic-gate dprint(3, ("sctp_notify: event %d\n", (*(uint16_t *)emp->b_rptr))); 61*0Sstevel@tonic-gate 62*0Sstevel@tonic-gate mp->b_datap->db_type = M_PROTO; 63*0Sstevel@tonic-gate mp->b_flag |= MSGMARK; 64*0Sstevel@tonic-gate mp->b_rptr += sizeof (void *); /* pointer worth of padding */ 65*0Sstevel@tonic-gate 66*0Sstevel@tonic-gate tudi = (struct T_unitdata_ind *)mp->b_rptr; 67*0Sstevel@tonic-gate tudi->PRIM_type = T_UNITDATA_IND; 68*0Sstevel@tonic-gate tudi->SRC_offset = sizeof (*tudi); 69*0Sstevel@tonic-gate tudi->OPT_length = 0; 70*0Sstevel@tonic-gate tudi->OPT_offset = 0; 71*0Sstevel@tonic-gate 72*0Sstevel@tonic-gate fp = sctp->sctp_primary; 73*0Sstevel@tonic-gate ASSERT(fp); 74*0Sstevel@tonic-gate 75*0Sstevel@tonic-gate /* 76*0Sstevel@tonic-gate * Fill in primary remote address. 77*0Sstevel@tonic-gate */ 78*0Sstevel@tonic-gate if (IN6_IS_ADDR_V4MAPPED(&fp->faddr)) { 79*0Sstevel@tonic-gate struct sockaddr_in *sin4; 80*0Sstevel@tonic-gate 81*0Sstevel@tonic-gate tudi->SRC_length = sizeof (*sin4); 82*0Sstevel@tonic-gate sin4 = (struct sockaddr_in *)(tudi + 1); 83*0Sstevel@tonic-gate sin4->sin_family = AF_INET; 84*0Sstevel@tonic-gate sin4->sin_port = sctp->sctp_fport; 85*0Sstevel@tonic-gate IN6_V4MAPPED_TO_IPADDR(&fp->faddr, sin4->sin_addr.s_addr); 86*0Sstevel@tonic-gate mp->b_wptr = (uchar_t *)(sin4 + 1); 87*0Sstevel@tonic-gate } else { 88*0Sstevel@tonic-gate struct sockaddr_in6 *sin6; 89*0Sstevel@tonic-gate 90*0Sstevel@tonic-gate tudi->SRC_length = sizeof (*sin6); 91*0Sstevel@tonic-gate sin6 = (struct sockaddr_in6 *)(tudi + 1); 92*0Sstevel@tonic-gate sin6->sin6_family = AF_INET6; 93*0Sstevel@tonic-gate sin6->sin6_port = sctp->sctp_fport; 94*0Sstevel@tonic-gate sin6->sin6_addr = fp->faddr; 95*0Sstevel@tonic-gate mp->b_wptr = (uchar_t *)(sin6 + 1); 96*0Sstevel@tonic-gate } 97*0Sstevel@tonic-gate 98*0Sstevel@tonic-gate mp->b_cont = emp; 99*0Sstevel@tonic-gate 100*0Sstevel@tonic-gate /* 101*0Sstevel@tonic-gate * Notifications are queued regardless of socket rx space. So 102*0Sstevel@tonic-gate * we do not decrement sctp_rwnd here as this will confuse the 103*0Sstevel@tonic-gate * other side. 104*0Sstevel@tonic-gate */ 105*0Sstevel@tonic-gate #ifdef DEBUG 106*0Sstevel@tonic-gate for (emp = mp->b_cont; emp; emp = emp->b_cont) { 107*0Sstevel@tonic-gate rwnd += emp->b_wptr - emp->b_rptr; 108*0Sstevel@tonic-gate } 109*0Sstevel@tonic-gate ASSERT(len == rwnd); 110*0Sstevel@tonic-gate #endif 111*0Sstevel@tonic-gate 112*0Sstevel@tonic-gate rwnd = sctp->sctp_ulp_recv(sctp->sctp_ulpd, mp, SCTP_NOTIFICATION); 113*0Sstevel@tonic-gate if (rwnd > sctp->sctp_rwnd) { 114*0Sstevel@tonic-gate sctp->sctp_rwnd = rwnd; 115*0Sstevel@tonic-gate } 116*0Sstevel@tonic-gate } 117*0Sstevel@tonic-gate 118*0Sstevel@tonic-gate void 119*0Sstevel@tonic-gate sctp_assoc_event(sctp_t *sctp, uint16_t state, uint16_t error, 120*0Sstevel@tonic-gate sctp_chunk_hdr_t *ch) 121*0Sstevel@tonic-gate { 122*0Sstevel@tonic-gate struct sctp_assoc_change *sacp; 123*0Sstevel@tonic-gate mblk_t *mp; 124*0Sstevel@tonic-gate uint16_t ch_len; 125*0Sstevel@tonic-gate 126*0Sstevel@tonic-gate if (!sctp->sctp_recvassocevnt) { 127*0Sstevel@tonic-gate return; 128*0Sstevel@tonic-gate } 129*0Sstevel@tonic-gate 130*0Sstevel@tonic-gate ch_len = (ch != NULL) ? ntohs(ch->sch_len) : 0; 131*0Sstevel@tonic-gate 132*0Sstevel@tonic-gate if ((mp = allocb(sizeof (*sacp) + ch_len, BPRI_MED)) == NULL) { 133*0Sstevel@tonic-gate return; 134*0Sstevel@tonic-gate } 135*0Sstevel@tonic-gate 136*0Sstevel@tonic-gate sacp = (struct sctp_assoc_change *)mp->b_rptr; 137*0Sstevel@tonic-gate sacp->sac_type = SCTP_ASSOC_CHANGE; 138*0Sstevel@tonic-gate sacp->sac_flags = sctp->sctp_prsctp_aware ? SCTP_PRSCTP_CAPABLE : 0; 139*0Sstevel@tonic-gate sacp->sac_length = sizeof (*sacp) + ch_len; 140*0Sstevel@tonic-gate sacp->sac_state = state; 141*0Sstevel@tonic-gate sacp->sac_error = error; 142*0Sstevel@tonic-gate sacp->sac_outbound_streams = sctp->sctp_num_ostr; 143*0Sstevel@tonic-gate sacp->sac_inbound_streams = sctp->sctp_num_istr; 144*0Sstevel@tonic-gate sacp->sac_assoc_id = 0; 145*0Sstevel@tonic-gate 146*0Sstevel@tonic-gate if (ch != NULL) 147*0Sstevel@tonic-gate bcopy(ch, sacp + 1, ch_len); 148*0Sstevel@tonic-gate mp->b_wptr += sacp->sac_length; 149*0Sstevel@tonic-gate sctp_notify(sctp, mp, sacp->sac_length); 150*0Sstevel@tonic-gate } 151*0Sstevel@tonic-gate 152*0Sstevel@tonic-gate /* 153*0Sstevel@tonic-gate * Send failure event. Message is expected to have message header still 154*0Sstevel@tonic-gate * in place, data follows in subsequent mblk's. 155*0Sstevel@tonic-gate */ 156*0Sstevel@tonic-gate static void 157*0Sstevel@tonic-gate sctp_sendfail(sctp_t *sctp, mblk_t *msghdr, uint16_t flags, int error) 158*0Sstevel@tonic-gate { 159*0Sstevel@tonic-gate struct sctp_send_failed *sfp; 160*0Sstevel@tonic-gate mblk_t *mp; 161*0Sstevel@tonic-gate sctp_msg_hdr_t *smh; 162*0Sstevel@tonic-gate 163*0Sstevel@tonic-gate /* Allocate a mblk for the notification header */ 164*0Sstevel@tonic-gate if ((mp = allocb(sizeof (*sfp), BPRI_MED)) == NULL) { 165*0Sstevel@tonic-gate /* give up */ 166*0Sstevel@tonic-gate freemsg(msghdr); 167*0Sstevel@tonic-gate return; 168*0Sstevel@tonic-gate } 169*0Sstevel@tonic-gate 170*0Sstevel@tonic-gate smh = (sctp_msg_hdr_t *)msghdr->b_rptr; 171*0Sstevel@tonic-gate sfp = (struct sctp_send_failed *)mp->b_rptr; 172*0Sstevel@tonic-gate sfp->ssf_type = SCTP_SEND_FAILED; 173*0Sstevel@tonic-gate sfp->ssf_flags = flags; 174*0Sstevel@tonic-gate sfp->ssf_length = smh->smh_msglen + sizeof (*sfp); 175*0Sstevel@tonic-gate sfp->ssf_error = error; 176*0Sstevel@tonic-gate sfp->ssf_assoc_id = 0; 177*0Sstevel@tonic-gate 178*0Sstevel@tonic-gate bzero(&sfp->ssf_info, sizeof (sfp->ssf_info)); 179*0Sstevel@tonic-gate sfp->ssf_info.sinfo_stream = smh->smh_sid; 180*0Sstevel@tonic-gate sfp->ssf_info.sinfo_flags = smh->smh_flags; 181*0Sstevel@tonic-gate sfp->ssf_info.sinfo_ppid = smh->smh_ppid; 182*0Sstevel@tonic-gate sfp->ssf_info.sinfo_context = smh->smh_context; 183*0Sstevel@tonic-gate sfp->ssf_info.sinfo_timetolive = TICK_TO_MSEC(smh->smh_ttl); 184*0Sstevel@tonic-gate 185*0Sstevel@tonic-gate mp->b_wptr = (uchar_t *)(sfp + 1); 186*0Sstevel@tonic-gate mp->b_cont = msghdr->b_cont; 187*0Sstevel@tonic-gate 188*0Sstevel@tonic-gate freeb(msghdr); 189*0Sstevel@tonic-gate 190*0Sstevel@tonic-gate sctp_notify(sctp, mp, sfp->ssf_length); 191*0Sstevel@tonic-gate 192*0Sstevel@tonic-gate } 193*0Sstevel@tonic-gate 194*0Sstevel@tonic-gate /* 195*0Sstevel@tonic-gate * Send failure when the message has been fully chunkified. 196*0Sstevel@tonic-gate */ 197*0Sstevel@tonic-gate static void 198*0Sstevel@tonic-gate sctp_sendfail_sent(sctp_t *sctp, mblk_t *meta, int error) 199*0Sstevel@tonic-gate { 200*0Sstevel@tonic-gate mblk_t *mp; 201*0Sstevel@tonic-gate mblk_t *nmp; 202*0Sstevel@tonic-gate mblk_t *tail; 203*0Sstevel@tonic-gate uint16_t flags = SCTP_DATA_SENT; 204*0Sstevel@tonic-gate 205*0Sstevel@tonic-gate if (!sctp->sctp_recvsendfailevnt) { 206*0Sstevel@tonic-gate sctp_free_msg(meta); 207*0Sstevel@tonic-gate return; 208*0Sstevel@tonic-gate } 209*0Sstevel@tonic-gate 210*0Sstevel@tonic-gate /* 211*0Sstevel@tonic-gate * We need to remove all data_hdr's. 212*0Sstevel@tonic-gate */ 213*0Sstevel@tonic-gate nmp = meta->b_cont; 214*0Sstevel@tonic-gate tail = meta; 215*0Sstevel@tonic-gate do { 216*0Sstevel@tonic-gate mp = nmp->b_next; 217*0Sstevel@tonic-gate nmp->b_next = NULL; 218*0Sstevel@tonic-gate 219*0Sstevel@tonic-gate /* 220*0Sstevel@tonic-gate * If one of the chunks hasn't been sent yet, say that 221*0Sstevel@tonic-gate * the message hasn't been sent. 222*0Sstevel@tonic-gate */ 223*0Sstevel@tonic-gate if (!SCTP_CHUNK_ISSENT(nmp)) { 224*0Sstevel@tonic-gate flags = SCTP_DATA_UNSENT; 225*0Sstevel@tonic-gate } 226*0Sstevel@tonic-gate nmp->b_rptr += sizeof (sctp_data_hdr_t); 227*0Sstevel@tonic-gate if (nmp->b_rptr == nmp->b_wptr) { 228*0Sstevel@tonic-gate tail->b_cont = nmp->b_cont; 229*0Sstevel@tonic-gate freeb(nmp); 230*0Sstevel@tonic-gate } else { 231*0Sstevel@tonic-gate tail->b_cont = nmp; 232*0Sstevel@tonic-gate } 233*0Sstevel@tonic-gate while (tail->b_cont) { 234*0Sstevel@tonic-gate tail = tail->b_cont; 235*0Sstevel@tonic-gate } 236*0Sstevel@tonic-gate } while ((nmp = mp) != NULL); 237*0Sstevel@tonic-gate 238*0Sstevel@tonic-gate sctp_sendfail(sctp, meta, flags, error); 239*0Sstevel@tonic-gate } 240*0Sstevel@tonic-gate 241*0Sstevel@tonic-gate /* 242*0Sstevel@tonic-gate * Send failure when the message hasn't been fully chunkified. 243*0Sstevel@tonic-gate */ 244*0Sstevel@tonic-gate void 245*0Sstevel@tonic-gate sctp_sendfail_event(sctp_t *sctp, mblk_t *meta, int error, boolean_t chunkified) 246*0Sstevel@tonic-gate { 247*0Sstevel@tonic-gate mblk_t *mp; 248*0Sstevel@tonic-gate mblk_t *nmp; 249*0Sstevel@tonic-gate mblk_t *tail; 250*0Sstevel@tonic-gate 251*0Sstevel@tonic-gate if (meta == NULL) 252*0Sstevel@tonic-gate return; 253*0Sstevel@tonic-gate 254*0Sstevel@tonic-gate if (!sctp->sctp_recvsendfailevnt) { 255*0Sstevel@tonic-gate sctp_free_msg(meta); 256*0Sstevel@tonic-gate return; 257*0Sstevel@tonic-gate } 258*0Sstevel@tonic-gate 259*0Sstevel@tonic-gate /* If the message is fully chunkified */ 260*0Sstevel@tonic-gate if (chunkified) { 261*0Sstevel@tonic-gate sctp_sendfail_sent(sctp, meta, error); 262*0Sstevel@tonic-gate return; 263*0Sstevel@tonic-gate } 264*0Sstevel@tonic-gate /* 265*0Sstevel@tonic-gate * Message might be partially chunkified, we need to remove 266*0Sstevel@tonic-gate * all data_hdr's. 267*0Sstevel@tonic-gate */ 268*0Sstevel@tonic-gate mp = meta->b_cont; 269*0Sstevel@tonic-gate tail = meta; 270*0Sstevel@tonic-gate while ((nmp = mp->b_next) != NULL) { 271*0Sstevel@tonic-gate mp->b_next = nmp->b_next; 272*0Sstevel@tonic-gate nmp->b_next = NULL; 273*0Sstevel@tonic-gate nmp->b_rptr += sizeof (sctp_data_hdr_t); 274*0Sstevel@tonic-gate if (nmp->b_rptr == nmp->b_wptr) { 275*0Sstevel@tonic-gate tail->b_cont = nmp->b_cont; 276*0Sstevel@tonic-gate freeb(nmp); 277*0Sstevel@tonic-gate } else { 278*0Sstevel@tonic-gate tail->b_cont = nmp; 279*0Sstevel@tonic-gate } 280*0Sstevel@tonic-gate while (tail->b_cont) { 281*0Sstevel@tonic-gate tail = tail->b_cont; 282*0Sstevel@tonic-gate } 283*0Sstevel@tonic-gate } 284*0Sstevel@tonic-gate tail->b_cont = mp; 285*0Sstevel@tonic-gate 286*0Sstevel@tonic-gate sctp_sendfail(sctp, meta, SCTP_DATA_UNSENT, error); 287*0Sstevel@tonic-gate } 288*0Sstevel@tonic-gate 289*0Sstevel@tonic-gate void 290*0Sstevel@tonic-gate sctp_regift_xmitlist(sctp_t *sctp) 291*0Sstevel@tonic-gate { 292*0Sstevel@tonic-gate mblk_t *mp; 293*0Sstevel@tonic-gate 294*0Sstevel@tonic-gate if (!sctp->sctp_recvsendfailevnt) { 295*0Sstevel@tonic-gate return; 296*0Sstevel@tonic-gate } 297*0Sstevel@tonic-gate 298*0Sstevel@tonic-gate while ((mp = sctp->sctp_xmit_head) != NULL) { 299*0Sstevel@tonic-gate sctp->sctp_xmit_head = mp->b_next; 300*0Sstevel@tonic-gate mp->b_next = NULL; 301*0Sstevel@tonic-gate if (sctp->sctp_xmit_head != NULL) 302*0Sstevel@tonic-gate sctp->sctp_xmit_head->b_prev = NULL; 303*0Sstevel@tonic-gate sctp_sendfail_event(sctp, mp, 0, B_TRUE); 304*0Sstevel@tonic-gate } 305*0Sstevel@tonic-gate while ((mp = sctp->sctp_xmit_unsent) != NULL) { 306*0Sstevel@tonic-gate sctp->sctp_xmit_unsent = mp->b_next; 307*0Sstevel@tonic-gate mp->b_next = NULL; 308*0Sstevel@tonic-gate sctp_sendfail_event(sctp, mp, 0, B_FALSE); 309*0Sstevel@tonic-gate } 310*0Sstevel@tonic-gate sctp->sctp_xmit_tail = sctp->sctp_xmit_unsent_tail = NULL; 311*0Sstevel@tonic-gate sctp->sctp_unacked = sctp->sctp_unsent = 0; 312*0Sstevel@tonic-gate } 313*0Sstevel@tonic-gate 314*0Sstevel@tonic-gate void 315*0Sstevel@tonic-gate sctp_intf_event(sctp_t *sctp, in6_addr_t addr, int state, int error) 316*0Sstevel@tonic-gate { 317*0Sstevel@tonic-gate struct sctp_paddr_change *spc; 318*0Sstevel@tonic-gate ipaddr_t addr4; 319*0Sstevel@tonic-gate struct sockaddr_in *sin; 320*0Sstevel@tonic-gate struct sockaddr_in6 *sin6; 321*0Sstevel@tonic-gate mblk_t *mp; 322*0Sstevel@tonic-gate 323*0Sstevel@tonic-gate if (!sctp->sctp_recvpathevnt) { 324*0Sstevel@tonic-gate return; 325*0Sstevel@tonic-gate } 326*0Sstevel@tonic-gate 327*0Sstevel@tonic-gate if ((mp = allocb(sizeof (*spc), BPRI_MED)) == NULL) { 328*0Sstevel@tonic-gate return; 329*0Sstevel@tonic-gate } 330*0Sstevel@tonic-gate 331*0Sstevel@tonic-gate spc = (struct sctp_paddr_change *)mp->b_rptr; 332*0Sstevel@tonic-gate spc->spc_type = SCTP_PEER_ADDR_CHANGE; 333*0Sstevel@tonic-gate spc->spc_flags = 0; 334*0Sstevel@tonic-gate spc->spc_length = sizeof (*spc); 335*0Sstevel@tonic-gate if (IN6_IS_ADDR_V4MAPPED(&addr)) { 336*0Sstevel@tonic-gate IN6_V4MAPPED_TO_IPADDR(&addr, addr4); 337*0Sstevel@tonic-gate sin = (struct sockaddr_in *)&spc->spc_aaddr; 338*0Sstevel@tonic-gate sin->sin_family = AF_INET; 339*0Sstevel@tonic-gate sin->sin_port = 0; 340*0Sstevel@tonic-gate sin->sin_addr.s_addr = addr4; 341*0Sstevel@tonic-gate } else { 342*0Sstevel@tonic-gate sin6 = (struct sockaddr_in6 *)&spc->spc_aaddr; 343*0Sstevel@tonic-gate sin6->sin6_family = AF_INET6; 344*0Sstevel@tonic-gate sin6->sin6_port = 0; 345*0Sstevel@tonic-gate sin6->sin6_addr = addr; 346*0Sstevel@tonic-gate } 347*0Sstevel@tonic-gate spc->spc_state = state; 348*0Sstevel@tonic-gate spc->spc_error = error; 349*0Sstevel@tonic-gate spc->spc_assoc_id = 0; 350*0Sstevel@tonic-gate 351*0Sstevel@tonic-gate mp->b_wptr = (uchar_t *)(spc + 1); 352*0Sstevel@tonic-gate sctp_notify(sctp, mp, spc->spc_length); 353*0Sstevel@tonic-gate } 354*0Sstevel@tonic-gate 355*0Sstevel@tonic-gate void 356*0Sstevel@tonic-gate sctp_error_event(sctp_t *sctp, sctp_chunk_hdr_t *ch) 357*0Sstevel@tonic-gate { 358*0Sstevel@tonic-gate struct sctp_remote_error *sre; 359*0Sstevel@tonic-gate mblk_t *mp; 360*0Sstevel@tonic-gate size_t len; 361*0Sstevel@tonic-gate sctp_parm_hdr_t *errh; 362*0Sstevel@tonic-gate uint16_t dlen = 0; 363*0Sstevel@tonic-gate uint16_t error = 0; 364*0Sstevel@tonic-gate void *dtail = NULL; 365*0Sstevel@tonic-gate 366*0Sstevel@tonic-gate if (!sctp->sctp_recvpeererr) { 367*0Sstevel@tonic-gate return; 368*0Sstevel@tonic-gate } 369*0Sstevel@tonic-gate 370*0Sstevel@tonic-gate if (ntohs(ch->sch_len) > sizeof (*ch)) { 371*0Sstevel@tonic-gate errh = (sctp_parm_hdr_t *)(ch + 1); 372*0Sstevel@tonic-gate error = ntohs(errh->sph_type); 373*0Sstevel@tonic-gate dlen = ntohs(errh->sph_len) - sizeof (*errh); 374*0Sstevel@tonic-gate if (dlen > 0) { 375*0Sstevel@tonic-gate dtail = errh + 1; 376*0Sstevel@tonic-gate } 377*0Sstevel@tonic-gate } 378*0Sstevel@tonic-gate 379*0Sstevel@tonic-gate len = sizeof (*sre) + dlen; 380*0Sstevel@tonic-gate if ((mp = allocb(len, BPRI_MED)) == NULL) { 381*0Sstevel@tonic-gate return; 382*0Sstevel@tonic-gate } 383*0Sstevel@tonic-gate 384*0Sstevel@tonic-gate sre = (struct sctp_remote_error *)mp->b_rptr; 385*0Sstevel@tonic-gate sre->sre_type = SCTP_REMOTE_ERROR; 386*0Sstevel@tonic-gate sre->sre_flags = 0; 387*0Sstevel@tonic-gate sre->sre_length = len; 388*0Sstevel@tonic-gate sre->sre_assoc_id = 0; 389*0Sstevel@tonic-gate sre->sre_error = error; 390*0Sstevel@tonic-gate if (dtail) { 391*0Sstevel@tonic-gate bcopy(dtail, sre + 1, dlen); 392*0Sstevel@tonic-gate } 393*0Sstevel@tonic-gate 394*0Sstevel@tonic-gate mp->b_wptr = mp->b_rptr + len; 395*0Sstevel@tonic-gate sctp_notify(sctp, mp, len); 396*0Sstevel@tonic-gate } 397*0Sstevel@tonic-gate 398*0Sstevel@tonic-gate void 399*0Sstevel@tonic-gate sctp_shutdown_event(sctp_t *sctp) 400*0Sstevel@tonic-gate { 401*0Sstevel@tonic-gate struct sctp_shutdown_event *sse; 402*0Sstevel@tonic-gate mblk_t *mp; 403*0Sstevel@tonic-gate 404*0Sstevel@tonic-gate if (!sctp->sctp_recvshutdownevnt) { 405*0Sstevel@tonic-gate return; 406*0Sstevel@tonic-gate } 407*0Sstevel@tonic-gate 408*0Sstevel@tonic-gate if ((mp = allocb(sizeof (*sse), BPRI_MED)) == NULL) { 409*0Sstevel@tonic-gate return; 410*0Sstevel@tonic-gate } 411*0Sstevel@tonic-gate 412*0Sstevel@tonic-gate sse = (struct sctp_shutdown_event *)mp->b_rptr; 413*0Sstevel@tonic-gate sse->sse_type = SCTP_SHUTDOWN_EVENT; 414*0Sstevel@tonic-gate sse->sse_flags = 0; 415*0Sstevel@tonic-gate sse->sse_length = sizeof (*sse); 416*0Sstevel@tonic-gate sse->sse_assoc_id = 0; 417*0Sstevel@tonic-gate 418*0Sstevel@tonic-gate mp->b_wptr = (uchar_t *)(sse + 1); 419*0Sstevel@tonic-gate sctp_notify(sctp, mp, sse->sse_length); 420*0Sstevel@tonic-gate } 421*0Sstevel@tonic-gate 422*0Sstevel@tonic-gate void 423*0Sstevel@tonic-gate sctp_adaption_event(sctp_t *sctp) 424*0Sstevel@tonic-gate { 425*0Sstevel@tonic-gate struct sctp_adaption_event *sai; 426*0Sstevel@tonic-gate mblk_t *mp; 427*0Sstevel@tonic-gate 428*0Sstevel@tonic-gate if (!sctp->sctp_recvalevnt || !sctp->sctp_recv_adaption) { 429*0Sstevel@tonic-gate return; 430*0Sstevel@tonic-gate } 431*0Sstevel@tonic-gate if ((mp = allocb(sizeof (*sai), BPRI_MED)) == NULL) { 432*0Sstevel@tonic-gate return; 433*0Sstevel@tonic-gate } 434*0Sstevel@tonic-gate 435*0Sstevel@tonic-gate sai = (struct sctp_adaption_event *)mp->b_rptr; 436*0Sstevel@tonic-gate sai->sai_type = SCTP_ADAPTION_INDICATION; 437*0Sstevel@tonic-gate sai->sai_flags = 0; 438*0Sstevel@tonic-gate sai->sai_length = sizeof (*sai); 439*0Sstevel@tonic-gate sai->sai_assoc_id = 0; 440*0Sstevel@tonic-gate /* 441*0Sstevel@tonic-gate * Adaptation code delivered in network byte order. 442*0Sstevel@tonic-gate */ 443*0Sstevel@tonic-gate sai->sai_adaption_ind = sctp->sctp_rx_adaption_code; 444*0Sstevel@tonic-gate 445*0Sstevel@tonic-gate mp->b_wptr = (uchar_t *)(sai + 1); 446*0Sstevel@tonic-gate sctp_notify(sctp, mp, sai->sai_length); 447*0Sstevel@tonic-gate 448*0Sstevel@tonic-gate sctp->sctp_recv_adaption = 0; /* in case there's a restart later */ 449*0Sstevel@tonic-gate } 450*0Sstevel@tonic-gate 451*0Sstevel@tonic-gate /* Send partial deliver event */ 452*0Sstevel@tonic-gate void 453*0Sstevel@tonic-gate sctp_partial_delivery_event(sctp_t *sctp) 454*0Sstevel@tonic-gate { 455*0Sstevel@tonic-gate struct sctp_pdapi_event *pdapi; 456*0Sstevel@tonic-gate mblk_t *mp; 457*0Sstevel@tonic-gate 458*0Sstevel@tonic-gate if (!sctp->sctp_recvpdevnt) 459*0Sstevel@tonic-gate return; 460*0Sstevel@tonic-gate 461*0Sstevel@tonic-gate if ((mp = allocb(sizeof (*pdapi), BPRI_MED)) == NULL) 462*0Sstevel@tonic-gate return; 463*0Sstevel@tonic-gate 464*0Sstevel@tonic-gate pdapi = (struct sctp_pdapi_event *)mp->b_rptr; 465*0Sstevel@tonic-gate pdapi->pdapi_type = SCTP_PARTIAL_DELIVERY_EVENT; 466*0Sstevel@tonic-gate pdapi->pdapi_flags = 0; 467*0Sstevel@tonic-gate pdapi->pdapi_length = sizeof (*pdapi); 468*0Sstevel@tonic-gate pdapi->pdapi_indication = SCTP_PARTIAL_DELIVERY_ABORTED; 469*0Sstevel@tonic-gate pdapi->pdapi_assoc_id = 0; 470*0Sstevel@tonic-gate mp->b_wptr = (uchar_t *)(pdapi + 1); 471*0Sstevel@tonic-gate sctp_notify(sctp, mp, pdapi->pdapi_length); 472*0Sstevel@tonic-gate } 473