1*7c478bd9Sstevel@tonic-gate /* 2*7c478bd9Sstevel@tonic-gate * CDDL HEADER START 3*7c478bd9Sstevel@tonic-gate * 4*7c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*7c478bd9Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*7c478bd9Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*7c478bd9Sstevel@tonic-gate * with the License. 8*7c478bd9Sstevel@tonic-gate * 9*7c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*7c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*7c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 12*7c478bd9Sstevel@tonic-gate * and limitations under the License. 13*7c478bd9Sstevel@tonic-gate * 14*7c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*7c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*7c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*7c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*7c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*7c478bd9Sstevel@tonic-gate * 20*7c478bd9Sstevel@tonic-gate * CDDL HEADER END 21*7c478bd9Sstevel@tonic-gate */ 22*7c478bd9Sstevel@tonic-gate /* 23*7c478bd9Sstevel@tonic-gate * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 24*7c478bd9Sstevel@tonic-gate * Use is subject to license terms. 25*7c478bd9Sstevel@tonic-gate */ 26*7c478bd9Sstevel@tonic-gate 27*7c478bd9Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 28*7c478bd9Sstevel@tonic-gate 29*7c478bd9Sstevel@tonic-gate #include <sys/types.h> 30*7c478bd9Sstevel@tonic-gate #include <sys/systm.h> 31*7c478bd9Sstevel@tonic-gate #include <sys/stream.h> 32*7c478bd9Sstevel@tonic-gate #include <sys/cmn_err.h> 33*7c478bd9Sstevel@tonic-gate #include <sys/tihdr.h> 34*7c478bd9Sstevel@tonic-gate #include <sys/kmem.h> 35*7c478bd9Sstevel@tonic-gate #define _SUN_TPI_VERSION 2 36*7c478bd9Sstevel@tonic-gate #include <sys/tihdr.h> 37*7c478bd9Sstevel@tonic-gate #include <sys/socket.h> 38*7c478bd9Sstevel@tonic-gate 39*7c478bd9Sstevel@tonic-gate #include <netinet/in.h> 40*7c478bd9Sstevel@tonic-gate #include <netinet/sctp.h> 41*7c478bd9Sstevel@tonic-gate 42*7c478bd9Sstevel@tonic-gate #include <inet/common.h> 43*7c478bd9Sstevel@tonic-gate #include <inet/ip.h> 44*7c478bd9Sstevel@tonic-gate #include "sctp_impl.h" 45*7c478bd9Sstevel@tonic-gate 46*7c478bd9Sstevel@tonic-gate static void 47*7c478bd9Sstevel@tonic-gate sctp_notify(sctp_t *sctp, mblk_t *emp, size_t len) 48*7c478bd9Sstevel@tonic-gate { 49*7c478bd9Sstevel@tonic-gate struct T_unitdata_ind *tudi; 50*7c478bd9Sstevel@tonic-gate mblk_t *mp; 51*7c478bd9Sstevel@tonic-gate sctp_faddr_t *fp; 52*7c478bd9Sstevel@tonic-gate int32_t rwnd = 0; 53*7c478bd9Sstevel@tonic-gate 54*7c478bd9Sstevel@tonic-gate if ((mp = allocb(sizeof (*tudi) + sizeof (void *) + 55*7c478bd9Sstevel@tonic-gate sizeof (struct sockaddr_in6), BPRI_HI)) == NULL) { 56*7c478bd9Sstevel@tonic-gate /* XXX trouble: don't want to drop events. should queue it. */ 57*7c478bd9Sstevel@tonic-gate freemsg(emp); 58*7c478bd9Sstevel@tonic-gate return; 59*7c478bd9Sstevel@tonic-gate } 60*7c478bd9Sstevel@tonic-gate dprint(3, ("sctp_notify: event %d\n", (*(uint16_t *)emp->b_rptr))); 61*7c478bd9Sstevel@tonic-gate 62*7c478bd9Sstevel@tonic-gate mp->b_datap->db_type = M_PROTO; 63*7c478bd9Sstevel@tonic-gate mp->b_flag |= MSGMARK; 64*7c478bd9Sstevel@tonic-gate mp->b_rptr += sizeof (void *); /* pointer worth of padding */ 65*7c478bd9Sstevel@tonic-gate 66*7c478bd9Sstevel@tonic-gate tudi = (struct T_unitdata_ind *)mp->b_rptr; 67*7c478bd9Sstevel@tonic-gate tudi->PRIM_type = T_UNITDATA_IND; 68*7c478bd9Sstevel@tonic-gate tudi->SRC_offset = sizeof (*tudi); 69*7c478bd9Sstevel@tonic-gate tudi->OPT_length = 0; 70*7c478bd9Sstevel@tonic-gate tudi->OPT_offset = 0; 71*7c478bd9Sstevel@tonic-gate 72*7c478bd9Sstevel@tonic-gate fp = sctp->sctp_primary; 73*7c478bd9Sstevel@tonic-gate ASSERT(fp); 74*7c478bd9Sstevel@tonic-gate 75*7c478bd9Sstevel@tonic-gate /* 76*7c478bd9Sstevel@tonic-gate * Fill in primary remote address. 77*7c478bd9Sstevel@tonic-gate */ 78*7c478bd9Sstevel@tonic-gate if (IN6_IS_ADDR_V4MAPPED(&fp->faddr)) { 79*7c478bd9Sstevel@tonic-gate struct sockaddr_in *sin4; 80*7c478bd9Sstevel@tonic-gate 81*7c478bd9Sstevel@tonic-gate tudi->SRC_length = sizeof (*sin4); 82*7c478bd9Sstevel@tonic-gate sin4 = (struct sockaddr_in *)(tudi + 1); 83*7c478bd9Sstevel@tonic-gate sin4->sin_family = AF_INET; 84*7c478bd9Sstevel@tonic-gate sin4->sin_port = sctp->sctp_fport; 85*7c478bd9Sstevel@tonic-gate IN6_V4MAPPED_TO_IPADDR(&fp->faddr, sin4->sin_addr.s_addr); 86*7c478bd9Sstevel@tonic-gate mp->b_wptr = (uchar_t *)(sin4 + 1); 87*7c478bd9Sstevel@tonic-gate } else { 88*7c478bd9Sstevel@tonic-gate struct sockaddr_in6 *sin6; 89*7c478bd9Sstevel@tonic-gate 90*7c478bd9Sstevel@tonic-gate tudi->SRC_length = sizeof (*sin6); 91*7c478bd9Sstevel@tonic-gate sin6 = (struct sockaddr_in6 *)(tudi + 1); 92*7c478bd9Sstevel@tonic-gate sin6->sin6_family = AF_INET6; 93*7c478bd9Sstevel@tonic-gate sin6->sin6_port = sctp->sctp_fport; 94*7c478bd9Sstevel@tonic-gate sin6->sin6_addr = fp->faddr; 95*7c478bd9Sstevel@tonic-gate mp->b_wptr = (uchar_t *)(sin6 + 1); 96*7c478bd9Sstevel@tonic-gate } 97*7c478bd9Sstevel@tonic-gate 98*7c478bd9Sstevel@tonic-gate mp->b_cont = emp; 99*7c478bd9Sstevel@tonic-gate 100*7c478bd9Sstevel@tonic-gate /* 101*7c478bd9Sstevel@tonic-gate * Notifications are queued regardless of socket rx space. So 102*7c478bd9Sstevel@tonic-gate * we do not decrement sctp_rwnd here as this will confuse the 103*7c478bd9Sstevel@tonic-gate * other side. 104*7c478bd9Sstevel@tonic-gate */ 105*7c478bd9Sstevel@tonic-gate #ifdef DEBUG 106*7c478bd9Sstevel@tonic-gate for (emp = mp->b_cont; emp; emp = emp->b_cont) { 107*7c478bd9Sstevel@tonic-gate rwnd += emp->b_wptr - emp->b_rptr; 108*7c478bd9Sstevel@tonic-gate } 109*7c478bd9Sstevel@tonic-gate ASSERT(len == rwnd); 110*7c478bd9Sstevel@tonic-gate #endif 111*7c478bd9Sstevel@tonic-gate 112*7c478bd9Sstevel@tonic-gate rwnd = sctp->sctp_ulp_recv(sctp->sctp_ulpd, mp, SCTP_NOTIFICATION); 113*7c478bd9Sstevel@tonic-gate if (rwnd > sctp->sctp_rwnd) { 114*7c478bd9Sstevel@tonic-gate sctp->sctp_rwnd = rwnd; 115*7c478bd9Sstevel@tonic-gate } 116*7c478bd9Sstevel@tonic-gate } 117*7c478bd9Sstevel@tonic-gate 118*7c478bd9Sstevel@tonic-gate void 119*7c478bd9Sstevel@tonic-gate sctp_assoc_event(sctp_t *sctp, uint16_t state, uint16_t error, 120*7c478bd9Sstevel@tonic-gate sctp_chunk_hdr_t *ch) 121*7c478bd9Sstevel@tonic-gate { 122*7c478bd9Sstevel@tonic-gate struct sctp_assoc_change *sacp; 123*7c478bd9Sstevel@tonic-gate mblk_t *mp; 124*7c478bd9Sstevel@tonic-gate uint16_t ch_len; 125*7c478bd9Sstevel@tonic-gate 126*7c478bd9Sstevel@tonic-gate if (!sctp->sctp_recvassocevnt) { 127*7c478bd9Sstevel@tonic-gate return; 128*7c478bd9Sstevel@tonic-gate } 129*7c478bd9Sstevel@tonic-gate 130*7c478bd9Sstevel@tonic-gate ch_len = (ch != NULL) ? ntohs(ch->sch_len) : 0; 131*7c478bd9Sstevel@tonic-gate 132*7c478bd9Sstevel@tonic-gate if ((mp = allocb(sizeof (*sacp) + ch_len, BPRI_MED)) == NULL) { 133*7c478bd9Sstevel@tonic-gate return; 134*7c478bd9Sstevel@tonic-gate } 135*7c478bd9Sstevel@tonic-gate 136*7c478bd9Sstevel@tonic-gate sacp = (struct sctp_assoc_change *)mp->b_rptr; 137*7c478bd9Sstevel@tonic-gate sacp->sac_type = SCTP_ASSOC_CHANGE; 138*7c478bd9Sstevel@tonic-gate sacp->sac_flags = sctp->sctp_prsctp_aware ? SCTP_PRSCTP_CAPABLE : 0; 139*7c478bd9Sstevel@tonic-gate sacp->sac_length = sizeof (*sacp) + ch_len; 140*7c478bd9Sstevel@tonic-gate sacp->sac_state = state; 141*7c478bd9Sstevel@tonic-gate sacp->sac_error = error; 142*7c478bd9Sstevel@tonic-gate sacp->sac_outbound_streams = sctp->sctp_num_ostr; 143*7c478bd9Sstevel@tonic-gate sacp->sac_inbound_streams = sctp->sctp_num_istr; 144*7c478bd9Sstevel@tonic-gate sacp->sac_assoc_id = 0; 145*7c478bd9Sstevel@tonic-gate 146*7c478bd9Sstevel@tonic-gate if (ch != NULL) 147*7c478bd9Sstevel@tonic-gate bcopy(ch, sacp + 1, ch_len); 148*7c478bd9Sstevel@tonic-gate mp->b_wptr += sacp->sac_length; 149*7c478bd9Sstevel@tonic-gate sctp_notify(sctp, mp, sacp->sac_length); 150*7c478bd9Sstevel@tonic-gate } 151*7c478bd9Sstevel@tonic-gate 152*7c478bd9Sstevel@tonic-gate /* 153*7c478bd9Sstevel@tonic-gate * Send failure event. Message is expected to have message header still 154*7c478bd9Sstevel@tonic-gate * in place, data follows in subsequent mblk's. 155*7c478bd9Sstevel@tonic-gate */ 156*7c478bd9Sstevel@tonic-gate static void 157*7c478bd9Sstevel@tonic-gate sctp_sendfail(sctp_t *sctp, mblk_t *msghdr, uint16_t flags, int error) 158*7c478bd9Sstevel@tonic-gate { 159*7c478bd9Sstevel@tonic-gate struct sctp_send_failed *sfp; 160*7c478bd9Sstevel@tonic-gate mblk_t *mp; 161*7c478bd9Sstevel@tonic-gate sctp_msg_hdr_t *smh; 162*7c478bd9Sstevel@tonic-gate 163*7c478bd9Sstevel@tonic-gate /* Allocate a mblk for the notification header */ 164*7c478bd9Sstevel@tonic-gate if ((mp = allocb(sizeof (*sfp), BPRI_MED)) == NULL) { 165*7c478bd9Sstevel@tonic-gate /* give up */ 166*7c478bd9Sstevel@tonic-gate freemsg(msghdr); 167*7c478bd9Sstevel@tonic-gate return; 168*7c478bd9Sstevel@tonic-gate } 169*7c478bd9Sstevel@tonic-gate 170*7c478bd9Sstevel@tonic-gate smh = (sctp_msg_hdr_t *)msghdr->b_rptr; 171*7c478bd9Sstevel@tonic-gate sfp = (struct sctp_send_failed *)mp->b_rptr; 172*7c478bd9Sstevel@tonic-gate sfp->ssf_type = SCTP_SEND_FAILED; 173*7c478bd9Sstevel@tonic-gate sfp->ssf_flags = flags; 174*7c478bd9Sstevel@tonic-gate sfp->ssf_length = smh->smh_msglen + sizeof (*sfp); 175*7c478bd9Sstevel@tonic-gate sfp->ssf_error = error; 176*7c478bd9Sstevel@tonic-gate sfp->ssf_assoc_id = 0; 177*7c478bd9Sstevel@tonic-gate 178*7c478bd9Sstevel@tonic-gate bzero(&sfp->ssf_info, sizeof (sfp->ssf_info)); 179*7c478bd9Sstevel@tonic-gate sfp->ssf_info.sinfo_stream = smh->smh_sid; 180*7c478bd9Sstevel@tonic-gate sfp->ssf_info.sinfo_flags = smh->smh_flags; 181*7c478bd9Sstevel@tonic-gate sfp->ssf_info.sinfo_ppid = smh->smh_ppid; 182*7c478bd9Sstevel@tonic-gate sfp->ssf_info.sinfo_context = smh->smh_context; 183*7c478bd9Sstevel@tonic-gate sfp->ssf_info.sinfo_timetolive = TICK_TO_MSEC(smh->smh_ttl); 184*7c478bd9Sstevel@tonic-gate 185*7c478bd9Sstevel@tonic-gate mp->b_wptr = (uchar_t *)(sfp + 1); 186*7c478bd9Sstevel@tonic-gate mp->b_cont = msghdr->b_cont; 187*7c478bd9Sstevel@tonic-gate 188*7c478bd9Sstevel@tonic-gate freeb(msghdr); 189*7c478bd9Sstevel@tonic-gate 190*7c478bd9Sstevel@tonic-gate sctp_notify(sctp, mp, sfp->ssf_length); 191*7c478bd9Sstevel@tonic-gate 192*7c478bd9Sstevel@tonic-gate } 193*7c478bd9Sstevel@tonic-gate 194*7c478bd9Sstevel@tonic-gate /* 195*7c478bd9Sstevel@tonic-gate * Send failure when the message has been fully chunkified. 196*7c478bd9Sstevel@tonic-gate */ 197*7c478bd9Sstevel@tonic-gate static void 198*7c478bd9Sstevel@tonic-gate sctp_sendfail_sent(sctp_t *sctp, mblk_t *meta, int error) 199*7c478bd9Sstevel@tonic-gate { 200*7c478bd9Sstevel@tonic-gate mblk_t *mp; 201*7c478bd9Sstevel@tonic-gate mblk_t *nmp; 202*7c478bd9Sstevel@tonic-gate mblk_t *tail; 203*7c478bd9Sstevel@tonic-gate uint16_t flags = SCTP_DATA_SENT; 204*7c478bd9Sstevel@tonic-gate 205*7c478bd9Sstevel@tonic-gate if (!sctp->sctp_recvsendfailevnt) { 206*7c478bd9Sstevel@tonic-gate sctp_free_msg(meta); 207*7c478bd9Sstevel@tonic-gate return; 208*7c478bd9Sstevel@tonic-gate } 209*7c478bd9Sstevel@tonic-gate 210*7c478bd9Sstevel@tonic-gate /* 211*7c478bd9Sstevel@tonic-gate * We need to remove all data_hdr's. 212*7c478bd9Sstevel@tonic-gate */ 213*7c478bd9Sstevel@tonic-gate nmp = meta->b_cont; 214*7c478bd9Sstevel@tonic-gate tail = meta; 215*7c478bd9Sstevel@tonic-gate do { 216*7c478bd9Sstevel@tonic-gate mp = nmp->b_next; 217*7c478bd9Sstevel@tonic-gate nmp->b_next = NULL; 218*7c478bd9Sstevel@tonic-gate 219*7c478bd9Sstevel@tonic-gate /* 220*7c478bd9Sstevel@tonic-gate * If one of the chunks hasn't been sent yet, say that 221*7c478bd9Sstevel@tonic-gate * the message hasn't been sent. 222*7c478bd9Sstevel@tonic-gate */ 223*7c478bd9Sstevel@tonic-gate if (!SCTP_CHUNK_ISSENT(nmp)) { 224*7c478bd9Sstevel@tonic-gate flags = SCTP_DATA_UNSENT; 225*7c478bd9Sstevel@tonic-gate } 226*7c478bd9Sstevel@tonic-gate nmp->b_rptr += sizeof (sctp_data_hdr_t); 227*7c478bd9Sstevel@tonic-gate if (nmp->b_rptr == nmp->b_wptr) { 228*7c478bd9Sstevel@tonic-gate tail->b_cont = nmp->b_cont; 229*7c478bd9Sstevel@tonic-gate freeb(nmp); 230*7c478bd9Sstevel@tonic-gate } else { 231*7c478bd9Sstevel@tonic-gate tail->b_cont = nmp; 232*7c478bd9Sstevel@tonic-gate } 233*7c478bd9Sstevel@tonic-gate while (tail->b_cont) { 234*7c478bd9Sstevel@tonic-gate tail = tail->b_cont; 235*7c478bd9Sstevel@tonic-gate } 236*7c478bd9Sstevel@tonic-gate } while ((nmp = mp) != NULL); 237*7c478bd9Sstevel@tonic-gate 238*7c478bd9Sstevel@tonic-gate sctp_sendfail(sctp, meta, flags, error); 239*7c478bd9Sstevel@tonic-gate } 240*7c478bd9Sstevel@tonic-gate 241*7c478bd9Sstevel@tonic-gate /* 242*7c478bd9Sstevel@tonic-gate * Send failure when the message hasn't been fully chunkified. 243*7c478bd9Sstevel@tonic-gate */ 244*7c478bd9Sstevel@tonic-gate void 245*7c478bd9Sstevel@tonic-gate sctp_sendfail_event(sctp_t *sctp, mblk_t *meta, int error, boolean_t chunkified) 246*7c478bd9Sstevel@tonic-gate { 247*7c478bd9Sstevel@tonic-gate mblk_t *mp; 248*7c478bd9Sstevel@tonic-gate mblk_t *nmp; 249*7c478bd9Sstevel@tonic-gate mblk_t *tail; 250*7c478bd9Sstevel@tonic-gate 251*7c478bd9Sstevel@tonic-gate if (meta == NULL) 252*7c478bd9Sstevel@tonic-gate return; 253*7c478bd9Sstevel@tonic-gate 254*7c478bd9Sstevel@tonic-gate if (!sctp->sctp_recvsendfailevnt) { 255*7c478bd9Sstevel@tonic-gate sctp_free_msg(meta); 256*7c478bd9Sstevel@tonic-gate return; 257*7c478bd9Sstevel@tonic-gate } 258*7c478bd9Sstevel@tonic-gate 259*7c478bd9Sstevel@tonic-gate /* If the message is fully chunkified */ 260*7c478bd9Sstevel@tonic-gate if (chunkified) { 261*7c478bd9Sstevel@tonic-gate sctp_sendfail_sent(sctp, meta, error); 262*7c478bd9Sstevel@tonic-gate return; 263*7c478bd9Sstevel@tonic-gate } 264*7c478bd9Sstevel@tonic-gate /* 265*7c478bd9Sstevel@tonic-gate * Message might be partially chunkified, we need to remove 266*7c478bd9Sstevel@tonic-gate * all data_hdr's. 267*7c478bd9Sstevel@tonic-gate */ 268*7c478bd9Sstevel@tonic-gate mp = meta->b_cont; 269*7c478bd9Sstevel@tonic-gate tail = meta; 270*7c478bd9Sstevel@tonic-gate while ((nmp = mp->b_next) != NULL) { 271*7c478bd9Sstevel@tonic-gate mp->b_next = nmp->b_next; 272*7c478bd9Sstevel@tonic-gate nmp->b_next = NULL; 273*7c478bd9Sstevel@tonic-gate nmp->b_rptr += sizeof (sctp_data_hdr_t); 274*7c478bd9Sstevel@tonic-gate if (nmp->b_rptr == nmp->b_wptr) { 275*7c478bd9Sstevel@tonic-gate tail->b_cont = nmp->b_cont; 276*7c478bd9Sstevel@tonic-gate freeb(nmp); 277*7c478bd9Sstevel@tonic-gate } else { 278*7c478bd9Sstevel@tonic-gate tail->b_cont = nmp; 279*7c478bd9Sstevel@tonic-gate } 280*7c478bd9Sstevel@tonic-gate while (tail->b_cont) { 281*7c478bd9Sstevel@tonic-gate tail = tail->b_cont; 282*7c478bd9Sstevel@tonic-gate } 283*7c478bd9Sstevel@tonic-gate } 284*7c478bd9Sstevel@tonic-gate tail->b_cont = mp; 285*7c478bd9Sstevel@tonic-gate 286*7c478bd9Sstevel@tonic-gate sctp_sendfail(sctp, meta, SCTP_DATA_UNSENT, error); 287*7c478bd9Sstevel@tonic-gate } 288*7c478bd9Sstevel@tonic-gate 289*7c478bd9Sstevel@tonic-gate void 290*7c478bd9Sstevel@tonic-gate sctp_regift_xmitlist(sctp_t *sctp) 291*7c478bd9Sstevel@tonic-gate { 292*7c478bd9Sstevel@tonic-gate mblk_t *mp; 293*7c478bd9Sstevel@tonic-gate 294*7c478bd9Sstevel@tonic-gate if (!sctp->sctp_recvsendfailevnt) { 295*7c478bd9Sstevel@tonic-gate return; 296*7c478bd9Sstevel@tonic-gate } 297*7c478bd9Sstevel@tonic-gate 298*7c478bd9Sstevel@tonic-gate while ((mp = sctp->sctp_xmit_head) != NULL) { 299*7c478bd9Sstevel@tonic-gate sctp->sctp_xmit_head = mp->b_next; 300*7c478bd9Sstevel@tonic-gate mp->b_next = NULL; 301*7c478bd9Sstevel@tonic-gate if (sctp->sctp_xmit_head != NULL) 302*7c478bd9Sstevel@tonic-gate sctp->sctp_xmit_head->b_prev = NULL; 303*7c478bd9Sstevel@tonic-gate sctp_sendfail_event(sctp, mp, 0, B_TRUE); 304*7c478bd9Sstevel@tonic-gate } 305*7c478bd9Sstevel@tonic-gate while ((mp = sctp->sctp_xmit_unsent) != NULL) { 306*7c478bd9Sstevel@tonic-gate sctp->sctp_xmit_unsent = mp->b_next; 307*7c478bd9Sstevel@tonic-gate mp->b_next = NULL; 308*7c478bd9Sstevel@tonic-gate sctp_sendfail_event(sctp, mp, 0, B_FALSE); 309*7c478bd9Sstevel@tonic-gate } 310*7c478bd9Sstevel@tonic-gate sctp->sctp_xmit_tail = sctp->sctp_xmit_unsent_tail = NULL; 311*7c478bd9Sstevel@tonic-gate sctp->sctp_unacked = sctp->sctp_unsent = 0; 312*7c478bd9Sstevel@tonic-gate } 313*7c478bd9Sstevel@tonic-gate 314*7c478bd9Sstevel@tonic-gate void 315*7c478bd9Sstevel@tonic-gate sctp_intf_event(sctp_t *sctp, in6_addr_t addr, int state, int error) 316*7c478bd9Sstevel@tonic-gate { 317*7c478bd9Sstevel@tonic-gate struct sctp_paddr_change *spc; 318*7c478bd9Sstevel@tonic-gate ipaddr_t addr4; 319*7c478bd9Sstevel@tonic-gate struct sockaddr_in *sin; 320*7c478bd9Sstevel@tonic-gate struct sockaddr_in6 *sin6; 321*7c478bd9Sstevel@tonic-gate mblk_t *mp; 322*7c478bd9Sstevel@tonic-gate 323*7c478bd9Sstevel@tonic-gate if (!sctp->sctp_recvpathevnt) { 324*7c478bd9Sstevel@tonic-gate return; 325*7c478bd9Sstevel@tonic-gate } 326*7c478bd9Sstevel@tonic-gate 327*7c478bd9Sstevel@tonic-gate if ((mp = allocb(sizeof (*spc), BPRI_MED)) == NULL) { 328*7c478bd9Sstevel@tonic-gate return; 329*7c478bd9Sstevel@tonic-gate } 330*7c478bd9Sstevel@tonic-gate 331*7c478bd9Sstevel@tonic-gate spc = (struct sctp_paddr_change *)mp->b_rptr; 332*7c478bd9Sstevel@tonic-gate spc->spc_type = SCTP_PEER_ADDR_CHANGE; 333*7c478bd9Sstevel@tonic-gate spc->spc_flags = 0; 334*7c478bd9Sstevel@tonic-gate spc->spc_length = sizeof (*spc); 335*7c478bd9Sstevel@tonic-gate if (IN6_IS_ADDR_V4MAPPED(&addr)) { 336*7c478bd9Sstevel@tonic-gate IN6_V4MAPPED_TO_IPADDR(&addr, addr4); 337*7c478bd9Sstevel@tonic-gate sin = (struct sockaddr_in *)&spc->spc_aaddr; 338*7c478bd9Sstevel@tonic-gate sin->sin_family = AF_INET; 339*7c478bd9Sstevel@tonic-gate sin->sin_port = 0; 340*7c478bd9Sstevel@tonic-gate sin->sin_addr.s_addr = addr4; 341*7c478bd9Sstevel@tonic-gate } else { 342*7c478bd9Sstevel@tonic-gate sin6 = (struct sockaddr_in6 *)&spc->spc_aaddr; 343*7c478bd9Sstevel@tonic-gate sin6->sin6_family = AF_INET6; 344*7c478bd9Sstevel@tonic-gate sin6->sin6_port = 0; 345*7c478bd9Sstevel@tonic-gate sin6->sin6_addr = addr; 346*7c478bd9Sstevel@tonic-gate } 347*7c478bd9Sstevel@tonic-gate spc->spc_state = state; 348*7c478bd9Sstevel@tonic-gate spc->spc_error = error; 349*7c478bd9Sstevel@tonic-gate spc->spc_assoc_id = 0; 350*7c478bd9Sstevel@tonic-gate 351*7c478bd9Sstevel@tonic-gate mp->b_wptr = (uchar_t *)(spc + 1); 352*7c478bd9Sstevel@tonic-gate sctp_notify(sctp, mp, spc->spc_length); 353*7c478bd9Sstevel@tonic-gate } 354*7c478bd9Sstevel@tonic-gate 355*7c478bd9Sstevel@tonic-gate void 356*7c478bd9Sstevel@tonic-gate sctp_error_event(sctp_t *sctp, sctp_chunk_hdr_t *ch) 357*7c478bd9Sstevel@tonic-gate { 358*7c478bd9Sstevel@tonic-gate struct sctp_remote_error *sre; 359*7c478bd9Sstevel@tonic-gate mblk_t *mp; 360*7c478bd9Sstevel@tonic-gate size_t len; 361*7c478bd9Sstevel@tonic-gate sctp_parm_hdr_t *errh; 362*7c478bd9Sstevel@tonic-gate uint16_t dlen = 0; 363*7c478bd9Sstevel@tonic-gate uint16_t error = 0; 364*7c478bd9Sstevel@tonic-gate void *dtail = NULL; 365*7c478bd9Sstevel@tonic-gate 366*7c478bd9Sstevel@tonic-gate if (!sctp->sctp_recvpeererr) { 367*7c478bd9Sstevel@tonic-gate return; 368*7c478bd9Sstevel@tonic-gate } 369*7c478bd9Sstevel@tonic-gate 370*7c478bd9Sstevel@tonic-gate if (ntohs(ch->sch_len) > sizeof (*ch)) { 371*7c478bd9Sstevel@tonic-gate errh = (sctp_parm_hdr_t *)(ch + 1); 372*7c478bd9Sstevel@tonic-gate error = ntohs(errh->sph_type); 373*7c478bd9Sstevel@tonic-gate dlen = ntohs(errh->sph_len) - sizeof (*errh); 374*7c478bd9Sstevel@tonic-gate if (dlen > 0) { 375*7c478bd9Sstevel@tonic-gate dtail = errh + 1; 376*7c478bd9Sstevel@tonic-gate } 377*7c478bd9Sstevel@tonic-gate } 378*7c478bd9Sstevel@tonic-gate 379*7c478bd9Sstevel@tonic-gate len = sizeof (*sre) + dlen; 380*7c478bd9Sstevel@tonic-gate if ((mp = allocb(len, BPRI_MED)) == NULL) { 381*7c478bd9Sstevel@tonic-gate return; 382*7c478bd9Sstevel@tonic-gate } 383*7c478bd9Sstevel@tonic-gate 384*7c478bd9Sstevel@tonic-gate sre = (struct sctp_remote_error *)mp->b_rptr; 385*7c478bd9Sstevel@tonic-gate sre->sre_type = SCTP_REMOTE_ERROR; 386*7c478bd9Sstevel@tonic-gate sre->sre_flags = 0; 387*7c478bd9Sstevel@tonic-gate sre->sre_length = len; 388*7c478bd9Sstevel@tonic-gate sre->sre_assoc_id = 0; 389*7c478bd9Sstevel@tonic-gate sre->sre_error = error; 390*7c478bd9Sstevel@tonic-gate if (dtail) { 391*7c478bd9Sstevel@tonic-gate bcopy(dtail, sre + 1, dlen); 392*7c478bd9Sstevel@tonic-gate } 393*7c478bd9Sstevel@tonic-gate 394*7c478bd9Sstevel@tonic-gate mp->b_wptr = mp->b_rptr + len; 395*7c478bd9Sstevel@tonic-gate sctp_notify(sctp, mp, len); 396*7c478bd9Sstevel@tonic-gate } 397*7c478bd9Sstevel@tonic-gate 398*7c478bd9Sstevel@tonic-gate void 399*7c478bd9Sstevel@tonic-gate sctp_shutdown_event(sctp_t *sctp) 400*7c478bd9Sstevel@tonic-gate { 401*7c478bd9Sstevel@tonic-gate struct sctp_shutdown_event *sse; 402*7c478bd9Sstevel@tonic-gate mblk_t *mp; 403*7c478bd9Sstevel@tonic-gate 404*7c478bd9Sstevel@tonic-gate if (!sctp->sctp_recvshutdownevnt) { 405*7c478bd9Sstevel@tonic-gate return; 406*7c478bd9Sstevel@tonic-gate } 407*7c478bd9Sstevel@tonic-gate 408*7c478bd9Sstevel@tonic-gate if ((mp = allocb(sizeof (*sse), BPRI_MED)) == NULL) { 409*7c478bd9Sstevel@tonic-gate return; 410*7c478bd9Sstevel@tonic-gate } 411*7c478bd9Sstevel@tonic-gate 412*7c478bd9Sstevel@tonic-gate sse = (struct sctp_shutdown_event *)mp->b_rptr; 413*7c478bd9Sstevel@tonic-gate sse->sse_type = SCTP_SHUTDOWN_EVENT; 414*7c478bd9Sstevel@tonic-gate sse->sse_flags = 0; 415*7c478bd9Sstevel@tonic-gate sse->sse_length = sizeof (*sse); 416*7c478bd9Sstevel@tonic-gate sse->sse_assoc_id = 0; 417*7c478bd9Sstevel@tonic-gate 418*7c478bd9Sstevel@tonic-gate mp->b_wptr = (uchar_t *)(sse + 1); 419*7c478bd9Sstevel@tonic-gate sctp_notify(sctp, mp, sse->sse_length); 420*7c478bd9Sstevel@tonic-gate } 421*7c478bd9Sstevel@tonic-gate 422*7c478bd9Sstevel@tonic-gate void 423*7c478bd9Sstevel@tonic-gate sctp_adaption_event(sctp_t *sctp) 424*7c478bd9Sstevel@tonic-gate { 425*7c478bd9Sstevel@tonic-gate struct sctp_adaption_event *sai; 426*7c478bd9Sstevel@tonic-gate mblk_t *mp; 427*7c478bd9Sstevel@tonic-gate 428*7c478bd9Sstevel@tonic-gate if (!sctp->sctp_recvalevnt || !sctp->sctp_recv_adaption) { 429*7c478bd9Sstevel@tonic-gate return; 430*7c478bd9Sstevel@tonic-gate } 431*7c478bd9Sstevel@tonic-gate if ((mp = allocb(sizeof (*sai), BPRI_MED)) == NULL) { 432*7c478bd9Sstevel@tonic-gate return; 433*7c478bd9Sstevel@tonic-gate } 434*7c478bd9Sstevel@tonic-gate 435*7c478bd9Sstevel@tonic-gate sai = (struct sctp_adaption_event *)mp->b_rptr; 436*7c478bd9Sstevel@tonic-gate sai->sai_type = SCTP_ADAPTION_INDICATION; 437*7c478bd9Sstevel@tonic-gate sai->sai_flags = 0; 438*7c478bd9Sstevel@tonic-gate sai->sai_length = sizeof (*sai); 439*7c478bd9Sstevel@tonic-gate sai->sai_assoc_id = 0; 440*7c478bd9Sstevel@tonic-gate /* 441*7c478bd9Sstevel@tonic-gate * Adaptation code delivered in network byte order. 442*7c478bd9Sstevel@tonic-gate */ 443*7c478bd9Sstevel@tonic-gate sai->sai_adaption_ind = sctp->sctp_rx_adaption_code; 444*7c478bd9Sstevel@tonic-gate 445*7c478bd9Sstevel@tonic-gate mp->b_wptr = (uchar_t *)(sai + 1); 446*7c478bd9Sstevel@tonic-gate sctp_notify(sctp, mp, sai->sai_length); 447*7c478bd9Sstevel@tonic-gate 448*7c478bd9Sstevel@tonic-gate sctp->sctp_recv_adaption = 0; /* in case there's a restart later */ 449*7c478bd9Sstevel@tonic-gate } 450*7c478bd9Sstevel@tonic-gate 451*7c478bd9Sstevel@tonic-gate /* Send partial deliver event */ 452*7c478bd9Sstevel@tonic-gate void 453*7c478bd9Sstevel@tonic-gate sctp_partial_delivery_event(sctp_t *sctp) 454*7c478bd9Sstevel@tonic-gate { 455*7c478bd9Sstevel@tonic-gate struct sctp_pdapi_event *pdapi; 456*7c478bd9Sstevel@tonic-gate mblk_t *mp; 457*7c478bd9Sstevel@tonic-gate 458*7c478bd9Sstevel@tonic-gate if (!sctp->sctp_recvpdevnt) 459*7c478bd9Sstevel@tonic-gate return; 460*7c478bd9Sstevel@tonic-gate 461*7c478bd9Sstevel@tonic-gate if ((mp = allocb(sizeof (*pdapi), BPRI_MED)) == NULL) 462*7c478bd9Sstevel@tonic-gate return; 463*7c478bd9Sstevel@tonic-gate 464*7c478bd9Sstevel@tonic-gate pdapi = (struct sctp_pdapi_event *)mp->b_rptr; 465*7c478bd9Sstevel@tonic-gate pdapi->pdapi_type = SCTP_PARTIAL_DELIVERY_EVENT; 466*7c478bd9Sstevel@tonic-gate pdapi->pdapi_flags = 0; 467*7c478bd9Sstevel@tonic-gate pdapi->pdapi_length = sizeof (*pdapi); 468*7c478bd9Sstevel@tonic-gate pdapi->pdapi_indication = SCTP_PARTIAL_DELIVERY_ABORTED; 469*7c478bd9Sstevel@tonic-gate pdapi->pdapi_assoc_id = 0; 470*7c478bd9Sstevel@tonic-gate mp->b_wptr = (uchar_t *)(pdapi + 1); 471*7c478bd9Sstevel@tonic-gate sctp_notify(sctp, mp, pdapi->pdapi_length); 472*7c478bd9Sstevel@tonic-gate } 473