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 #ifndef _INET_SCTP_SCTP_IMPL_H 28*0Sstevel@tonic-gate #define _INET_SCTP_SCTP_IMPL_H 29*0Sstevel@tonic-gate 30*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 31*0Sstevel@tonic-gate 32*0Sstevel@tonic-gate #ifdef __cplusplus 33*0Sstevel@tonic-gate extern "C" { 34*0Sstevel@tonic-gate #endif 35*0Sstevel@tonic-gate 36*0Sstevel@tonic-gate #include <sys/inttypes.h> 37*0Sstevel@tonic-gate #include <sys/taskq.h> 38*0Sstevel@tonic-gate #include <sys/list.h> 39*0Sstevel@tonic-gate #include <sys/strsun.h> 40*0Sstevel@tonic-gate #include <netinet/ip6.h> 41*0Sstevel@tonic-gate #include <inet/optcom.h> 42*0Sstevel@tonic-gate #include <netinet/sctp.h> 43*0Sstevel@tonic-gate #include <inet/sctp_itf.h> 44*0Sstevel@tonic-gate 45*0Sstevel@tonic-gate /* Streams device identifying info and version */ 46*0Sstevel@tonic-gate #define SCTP_DEV_IDINFO "SCTP Streams device 1.0" 47*0Sstevel@tonic-gate 48*0Sstevel@tonic-gate #define SSN_GT(a, b) ((int16_t)((a)-(b)) > 0) 49*0Sstevel@tonic-gate #define SSN_GE(a, b) ((int16_t)((a)-(b)) >= 0) 50*0Sstevel@tonic-gate 51*0Sstevel@tonic-gate /* Default buffer size and flow control wake up threshold. */ 52*0Sstevel@tonic-gate #define SCTP_XMIT_LOWATER 8192 53*0Sstevel@tonic-gate #define SCTP_XMIT_HIWATER 102400 54*0Sstevel@tonic-gate #define SCTP_RECV_LOWATER 8192 55*0Sstevel@tonic-gate #define SCTP_RECV_HIWATER 102400 56*0Sstevel@tonic-gate 57*0Sstevel@tonic-gate /* SCTP Timer control structure */ 58*0Sstevel@tonic-gate typedef struct sctpt_s { 59*0Sstevel@tonic-gate pfv_t sctpt_pfv; /* The routine we are to call */ 60*0Sstevel@tonic-gate struct sctp_s *sctpt_sctp; /* The parameter we are to pass in */ 61*0Sstevel@tonic-gate struct sctp_faddr_s *sctpt_faddr; 62*0Sstevel@tonic-gate } sctpt_t; 63*0Sstevel@tonic-gate 64*0Sstevel@tonic-gate /* 65*0Sstevel@tonic-gate * faddr timer mblks are not allocated until first use. This macro 66*0Sstevel@tonic-gate * will allocate the timer mblk if necessary, set the faddr, and then 67*0Sstevel@tonic-gate * start the timer. 68*0Sstevel@tonic-gate */ 69*0Sstevel@tonic-gate #define SCTP_FADDR_TIMER_RESTART(sctp, fp, intvl) \ 70*0Sstevel@tonic-gate if ((fp)->timer_mp == NULL) { \ 71*0Sstevel@tonic-gate (fp)->timer_mp = sctp_timer_alloc((sctp), sctp_rexmit_timer); \ 72*0Sstevel@tonic-gate } \ 73*0Sstevel@tonic-gate if ((fp)->timer_mp != NULL) { \ 74*0Sstevel@tonic-gate ((sctpt_t *)((fp)->timer_mp->b_rptr))->sctpt_faddr = fp; \ 75*0Sstevel@tonic-gate dprint(3, ("faddr_timer_restart: fp=%p %x:%x:%x:%x %d\n", \ 76*0Sstevel@tonic-gate (fp), SCTP_PRINTADDR((fp)->faddr), \ 77*0Sstevel@tonic-gate (int)(intvl))); \ 78*0Sstevel@tonic-gate sctp_timer((sctp), (fp)->timer_mp, (intvl)); \ 79*0Sstevel@tonic-gate (fp)->timer_running = 1; \ 80*0Sstevel@tonic-gate } 81*0Sstevel@tonic-gate 82*0Sstevel@tonic-gate #define SCTP_FADDR_TIMER_STOP(fp) \ 83*0Sstevel@tonic-gate if ((fp)->timer_running && (fp)->timer_mp != NULL) { \ 84*0Sstevel@tonic-gate sctp_timer_stop((fp)->timer_mp); \ 85*0Sstevel@tonic-gate (fp)->timer_running = 0; \ 86*0Sstevel@tonic-gate } 87*0Sstevel@tonic-gate 88*0Sstevel@tonic-gate #define SCTP_CALC_RXT(fp, max) \ 89*0Sstevel@tonic-gate { \ 90*0Sstevel@tonic-gate if (((fp)->rto <<= 1) > (max)) \ 91*0Sstevel@tonic-gate (fp)->rto = (max); \ 92*0Sstevel@tonic-gate } 93*0Sstevel@tonic-gate 94*0Sstevel@tonic-gate /* 95*0Sstevel@tonic-gate * Maximum number of duplicate TSNs we can report. This is currently 96*0Sstevel@tonic-gate * static, and governs the size of the mblk used to hold the duplicate 97*0Sstevel@tonic-gate * reports. The use of duplcate TSN reports is currently experimental, 98*0Sstevel@tonic-gate * so for now a static limit should suffice. 99*0Sstevel@tonic-gate */ 100*0Sstevel@tonic-gate #define SCTP_DUP_MBLK_SZ 64 101*0Sstevel@tonic-gate 102*0Sstevel@tonic-gate #define SCTP_IS_ADDR_UNSPEC(isv4, addr) \ 103*0Sstevel@tonic-gate ((isv4) ? IN6_IS_ADDR_V4MAPPED_ANY(&(addr)) : \ 104*0Sstevel@tonic-gate IN6_IS_ADDR_UNSPECIFIED(&(addr))) 105*0Sstevel@tonic-gate 106*0Sstevel@tonic-gate extern int sctp_g_num_epriv_ports; 107*0Sstevel@tonic-gate extern uint16_t sctp_g_epriv_ports[]; 108*0Sstevel@tonic-gate extern kmutex_t sctp_epriv_port_lock; 109*0Sstevel@tonic-gate 110*0Sstevel@tonic-gate extern uint_t sctp_next_port_to_try; 111*0Sstevel@tonic-gate /* 112*0Sstevel@tonic-gate * SCTP parameters 113*0Sstevel@tonic-gate */ 114*0Sstevel@tonic-gate /* Named Dispatch Parameter Management Structure */ 115*0Sstevel@tonic-gate typedef struct sctpparam_s { 116*0Sstevel@tonic-gate uint32_t sctp_param_min; 117*0Sstevel@tonic-gate uint32_t sctp_param_max; 118*0Sstevel@tonic-gate uint32_t sctp_param_val; 119*0Sstevel@tonic-gate char *sctp_param_name; 120*0Sstevel@tonic-gate } sctpparam_t; 121*0Sstevel@tonic-gate 122*0Sstevel@tonic-gate extern sctpparam_t sctp_param_arr[]; 123*0Sstevel@tonic-gate #define sctp_max_init_retr sctp_param_arr[0].sctp_param_val 124*0Sstevel@tonic-gate #define sctp_max_init_retr_high sctp_param_arr[0].sctp_param_max 125*0Sstevel@tonic-gate #define sctp_max_init_retr_low sctp_param_arr[0].sctp_param_min 126*0Sstevel@tonic-gate #define sctp_pa_max_retr sctp_param_arr[1].sctp_param_val 127*0Sstevel@tonic-gate #define sctp_pa_max_retr_high sctp_param_arr[1].sctp_param_max 128*0Sstevel@tonic-gate #define sctp_pa_max_retr_low sctp_param_arr[1].sctp_param_min 129*0Sstevel@tonic-gate #define sctp_pp_max_retr sctp_param_arr[2].sctp_param_val 130*0Sstevel@tonic-gate #define sctp_pp_max_retr_high sctp_param_arr[2].sctp_param_max 131*0Sstevel@tonic-gate #define sctp_pp_max_retr_low sctp_param_arr[2].sctp_param_min 132*0Sstevel@tonic-gate #define sctp_cwnd_max_ sctp_param_arr[3].sctp_param_val 133*0Sstevel@tonic-gate #define sctp_dbg sctp_param_arr[4].sctp_param_val 134*0Sstevel@tonic-gate #define sctp_smallest_nonpriv_port sctp_param_arr[5].sctp_param_val 135*0Sstevel@tonic-gate #define sctp_ipv4_ttl sctp_param_arr[6].sctp_param_val 136*0Sstevel@tonic-gate #define sctp_heartbeat_interval sctp_param_arr[7].sctp_param_val 137*0Sstevel@tonic-gate #define sctp_heartbeat_interval_high sctp_param_arr[7].sctp_param_max 138*0Sstevel@tonic-gate #define sctp_heartbeat_interval_low sctp_param_arr[7].sctp_param_min 139*0Sstevel@tonic-gate #define sctp_initial_mtu sctp_param_arr[8].sctp_param_val 140*0Sstevel@tonic-gate #define sctp_mtu_probe_interval sctp_param_arr[9].sctp_param_val 141*0Sstevel@tonic-gate #define sctp_new_secret_interval sctp_param_arr[10].sctp_param_val 142*0Sstevel@tonic-gate #define sctp_deferred_ack_interval sctp_param_arr[11].sctp_param_val 143*0Sstevel@tonic-gate #define sctp_snd_lowat_fraction sctp_param_arr[12].sctp_param_val 144*0Sstevel@tonic-gate #define sctp_ignore_path_mtu sctp_param_arr[13].sctp_param_val 145*0Sstevel@tonic-gate #define sctp_initial_ssthresh sctp_param_arr[14].sctp_param_val 146*0Sstevel@tonic-gate #define sctp_smallest_anon_port sctp_param_arr[15].sctp_param_val 147*0Sstevel@tonic-gate #define sctp_largest_anon_port sctp_param_arr[16].sctp_param_val 148*0Sstevel@tonic-gate #define sctp_xmit_hiwat sctp_param_arr[17].sctp_param_val 149*0Sstevel@tonic-gate #define sctp_xmit_lowat sctp_param_arr[18].sctp_param_val 150*0Sstevel@tonic-gate #define sctp_recv_hiwat sctp_param_arr[19].sctp_param_val 151*0Sstevel@tonic-gate #define sctp_max_buf sctp_param_arr[20].sctp_param_val 152*0Sstevel@tonic-gate #define sctp_rtt_updates sctp_param_arr[21].sctp_param_val 153*0Sstevel@tonic-gate #define sctp_ipv6_hoplimit sctp_param_arr[22].sctp_param_val 154*0Sstevel@tonic-gate #define sctp_rto_ming sctp_param_arr[23].sctp_param_val 155*0Sstevel@tonic-gate #define sctp_rto_ming_high sctp_param_arr[23].sctp_param_max 156*0Sstevel@tonic-gate #define sctp_rto_ming_low sctp_param_arr[23].sctp_param_min 157*0Sstevel@tonic-gate #define sctp_rto_maxg sctp_param_arr[24].sctp_param_val 158*0Sstevel@tonic-gate #define sctp_rto_maxg_high sctp_param_arr[24].sctp_param_max 159*0Sstevel@tonic-gate #define sctp_rto_maxg_low sctp_param_arr[24].sctp_param_min 160*0Sstevel@tonic-gate #define sctp_rto_initialg sctp_param_arr[25].sctp_param_val 161*0Sstevel@tonic-gate #define sctp_rto_initialg_high sctp_param_arr[25].sctp_param_max 162*0Sstevel@tonic-gate #define sctp_rto_initialg_low sctp_param_arr[25].sctp_param_min 163*0Sstevel@tonic-gate #define sctp_cookie_life sctp_param_arr[26].sctp_param_val 164*0Sstevel@tonic-gate #define sctp_cookie_life_high sctp_param_arr[26].sctp_param_max 165*0Sstevel@tonic-gate #define sctp_cookie_life_low sctp_param_arr[26].sctp_param_min 166*0Sstevel@tonic-gate #define sctp_max_in_streams sctp_param_arr[27].sctp_param_val 167*0Sstevel@tonic-gate #define sctp_max_in_streams_high sctp_param_arr[27].sctp_param_max 168*0Sstevel@tonic-gate #define sctp_max_in_streams_low sctp_param_arr[27].sctp_param_min 169*0Sstevel@tonic-gate #define sctp_initial_out_streams sctp_param_arr[28].sctp_param_val 170*0Sstevel@tonic-gate #define sctp_initial_out_streams_high sctp_param_arr[28].sctp_param_max 171*0Sstevel@tonic-gate #define sctp_initial_out_streams_low sctp_param_arr[28].sctp_param_min 172*0Sstevel@tonic-gate #define sctp_shutack_wait_bound sctp_param_arr[29].sctp_param_val 173*0Sstevel@tonic-gate #define sctp_maxburst sctp_param_arr[30].sctp_param_val 174*0Sstevel@tonic-gate #define sctp_addip_enabled sctp_param_arr[31].sctp_param_val 175*0Sstevel@tonic-gate #define sctp_recv_hiwat_minmss sctp_param_arr[32].sctp_param_val 176*0Sstevel@tonic-gate #define sctp_slow_start_initial sctp_param_arr[33].sctp_param_val 177*0Sstevel@tonic-gate #define sctp_slow_start_after_idle sctp_param_arr[34].sctp_param_val 178*0Sstevel@tonic-gate #define sctp_prsctp_enabled sctp_param_arr[35].sctp_param_val 179*0Sstevel@tonic-gate #define sctp_fast_rxt_thresh sctp_param_arr[36].sctp_param_val 180*0Sstevel@tonic-gate /* 181*0Sstevel@tonic-gate * sctp_wroff_xtra is the extra space in front of SCTP/IP header for link 182*0Sstevel@tonic-gate * layer header. It has to be a multiple of 4. 183*0Sstevel@tonic-gate */ 184*0Sstevel@tonic-gate extern sctpparam_t sctp_wroff_xtra_param; 185*0Sstevel@tonic-gate #define sctp_wroff_xtra sctp_wroff_xtra_param.sctp_param_val 186*0Sstevel@tonic-gate 187*0Sstevel@tonic-gate #define SCTP_MAX_COMBINED_HEADER_LENGTH (60 + 12) /* Maxed out ip + sctp */ 188*0Sstevel@tonic-gate #define SCTP_MAX_IP_OPTIONS_LENGTH (60 - IP_SIMPLE_HDR_LENGTH) 189*0Sstevel@tonic-gate #define SCTP_MAX_HDR_LENGTH 60 190*0Sstevel@tonic-gate 191*0Sstevel@tonic-gate #define SCTP_SECRET_LEN 16 192*0Sstevel@tonic-gate 193*0Sstevel@tonic-gate #define SCTP_REFHOLD(sctp) { \ 194*0Sstevel@tonic-gate mutex_enter(&(sctp)->sctp_reflock); \ 195*0Sstevel@tonic-gate (sctp)->sctp_refcnt++; \ 196*0Sstevel@tonic-gate ASSERT((sctp)->sctp_refcnt != 0); \ 197*0Sstevel@tonic-gate mutex_exit(&(sctp)->sctp_reflock); \ 198*0Sstevel@tonic-gate } 199*0Sstevel@tonic-gate 200*0Sstevel@tonic-gate #define SCTP_REFRELE(sctp) { \ 201*0Sstevel@tonic-gate mutex_enter(&(sctp)->sctp_reflock); \ 202*0Sstevel@tonic-gate ASSERT((sctp)->sctp_refcnt != 0); \ 203*0Sstevel@tonic-gate if (--(sctp)->sctp_refcnt == 0) { \ 204*0Sstevel@tonic-gate mutex_exit(&(sctp)->sctp_reflock); \ 205*0Sstevel@tonic-gate CONN_DEC_REF((sctp)->sctp_connp); \ 206*0Sstevel@tonic-gate } else { \ 207*0Sstevel@tonic-gate mutex_exit(&(sctp)->sctp_reflock); \ 208*0Sstevel@tonic-gate } \ 209*0Sstevel@tonic-gate } 210*0Sstevel@tonic-gate 211*0Sstevel@tonic-gate #define SCTP_PRINTADDR(a) (a).s6_addr32[0], (a).s6_addr32[1],\ 212*0Sstevel@tonic-gate (a).s6_addr32[2], (a).s6_addr32[3] 213*0Sstevel@tonic-gate 214*0Sstevel@tonic-gate #define CONN2SCTP(conn) ((sctp_t *)(&((conn_t *)conn)[1])) 215*0Sstevel@tonic-gate 216*0Sstevel@tonic-gate /* 217*0Sstevel@tonic-gate * Outbound data, flags and macros for per-message, per-chunk info 218*0Sstevel@tonic-gate */ 219*0Sstevel@tonic-gate typedef struct { 220*0Sstevel@tonic-gate int64_t smh_ttl; /* Time to Live */ 221*0Sstevel@tonic-gate int64_t smh_tob; /* Time of Birth */ 222*0Sstevel@tonic-gate uint32_t smh_context; 223*0Sstevel@tonic-gate uint16_t smh_sid; 224*0Sstevel@tonic-gate uint16_t smh_ssn; 225*0Sstevel@tonic-gate uint32_t smh_ppid; 226*0Sstevel@tonic-gate uint16_t smh_flags; 227*0Sstevel@tonic-gate uint32_t smh_msglen; 228*0Sstevel@tonic-gate } sctp_msg_hdr_t; 229*0Sstevel@tonic-gate 230*0Sstevel@tonic-gate #define SCTP_CHUNK_FLAG_SENT 0x01 231*0Sstevel@tonic-gate #define SCTP_CHUNK_FLAG_REXMIT 0x02 232*0Sstevel@tonic-gate #define SCTP_CHUNK_FLAG_ACKED 0x04 233*0Sstevel@tonic-gate #define SCTP_MSG_FLAG_CHUNKED 0x08 234*0Sstevel@tonic-gate #define SCTP_MSG_FLAG_ABANDONED 0x10 235*0Sstevel@tonic-gate #define SCTP_CHUNK_FLAG_ABANDONED 0x20 236*0Sstevel@tonic-gate 237*0Sstevel@tonic-gate #define SCTP_CHUNK_CLEAR_FLAGS(mp) ((mp)->b_flag = 0) 238*0Sstevel@tonic-gate /* 239*0Sstevel@tonic-gate * If we are transmitting the chunk for the first time we assign the TSN and 240*0Sstevel@tonic-gate * SSN here. The reason we assign the SSN here (as opposed to doing it in 241*0Sstevel@tonic-gate * sctp_chunkify()) is that the chunk may expire, if PRSCTP is enabled, before 242*0Sstevel@tonic-gate * we get a chance to send it out. If we assign the SSN in sctp_chunkify() 243*0Sstevel@tonic-gate * and this happens, then we need to send a Forward TSN to the peer, which 244*0Sstevel@tonic-gate * will be expecting this SSN, assuming ordered. If we assign it here we 245*0Sstevel@tonic-gate * can just take out the chunk from the transmit list without having to 246*0Sstevel@tonic-gate * send a Forward TSN chunk. While assigning the SSN we use (meta)->b_cont 247*0Sstevel@tonic-gate * to determine if it needs a new SSN (i.e. the next SSN for the stream), 248*0Sstevel@tonic-gate * since (meta)->b_cont signifies the first chunk of a message (if the message 249*0Sstevel@tonic-gate * is unordered, then the SSN is 0). 250*0Sstevel@tonic-gate * 251*0Sstevel@tonic-gate */ 252*0Sstevel@tonic-gate #define SCTP_CHUNK_SENT(sctp, mp, sdc, fp, chunkdata, meta) { \ 253*0Sstevel@tonic-gate if (!SCTP_CHUNK_ISSENT(mp)) { \ 254*0Sstevel@tonic-gate sctp_msg_hdr_t *mhdr = (sctp_msg_hdr_t *)(meta)->b_rptr; \ 255*0Sstevel@tonic-gate ASSERT(!SCTP_CHUNK_ABANDONED(mp)); \ 256*0Sstevel@tonic-gate (mp)->b_flag = SCTP_CHUNK_FLAG_SENT; \ 257*0Sstevel@tonic-gate (sdc)->sdh_tsn = htonl((sctp)->sctp_ltsn++); \ 258*0Sstevel@tonic-gate if ((mhdr)->smh_flags & MSG_UNORDERED) { \ 259*0Sstevel@tonic-gate (sdc)->sdh_ssn = 0; \ 260*0Sstevel@tonic-gate SCTP_DATA_SET_UBIT(sdc); \ 261*0Sstevel@tonic-gate BUMP_LOCAL((sctp)->sctp_oudchunks); \ 262*0Sstevel@tonic-gate } else { \ 263*0Sstevel@tonic-gate BUMP_LOCAL((sctp)->sctp_odchunks); \ 264*0Sstevel@tonic-gate if ((mp) == (meta)->b_cont) { \ 265*0Sstevel@tonic-gate mhdr->smh_ssn = htons( \ 266*0Sstevel@tonic-gate (sctp)->sctp_ostrcntrs[mhdr->smh_sid]++); \ 267*0Sstevel@tonic-gate } \ 268*0Sstevel@tonic-gate (sdc)->sdh_ssn = mhdr->smh_ssn; \ 269*0Sstevel@tonic-gate } \ 270*0Sstevel@tonic-gate (sctp)->sctp_unacked += (chunkdata); \ 271*0Sstevel@tonic-gate (sctp)->sctp_unsent -= (chunkdata); \ 272*0Sstevel@tonic-gate (sctp)->sctp_frwnd -= (chunkdata); \ 273*0Sstevel@tonic-gate } else { \ 274*0Sstevel@tonic-gate if (SCTP_CHUNK_ISACKED(mp)) { \ 275*0Sstevel@tonic-gate (sctp)->sctp_unacked += (chunkdata); \ 276*0Sstevel@tonic-gate } else { \ 277*0Sstevel@tonic-gate ASSERT(SCTP_CHUNK_DEST(mp)->suna >= ((chunkdata) + \ 278*0Sstevel@tonic-gate sizeof (*sdc))); \ 279*0Sstevel@tonic-gate SCTP_CHUNK_DEST(mp)->suna -= ((chunkdata) + \ 280*0Sstevel@tonic-gate sizeof (*sdc)); \ 281*0Sstevel@tonic-gate } \ 282*0Sstevel@tonic-gate (mp)->b_flag &= ~(SCTP_CHUNK_FLAG_REXMIT | \ 283*0Sstevel@tonic-gate SCTP_CHUNK_FLAG_ACKED); \ 284*0Sstevel@tonic-gate SCTP_CHUNK_SET_SACKCNT(mp, 0); \ 285*0Sstevel@tonic-gate BUMP_LOCAL(sctp->sctp_rxtchunks); \ 286*0Sstevel@tonic-gate BUMP_LOCAL((sctp)->sctp_T3expire); \ 287*0Sstevel@tonic-gate BUMP_LOCAL((fp)->T3expire); \ 288*0Sstevel@tonic-gate } \ 289*0Sstevel@tonic-gate SCTP_SET_CHUNK_DEST(mp, fp); \ 290*0Sstevel@tonic-gate (fp)->suna += ((chunkdata) + sizeof (*sdc)); \ 291*0Sstevel@tonic-gate } 292*0Sstevel@tonic-gate 293*0Sstevel@tonic-gate #define SCTP_CHUNK_ISSENT(mp) ((mp)->b_flag & SCTP_CHUNK_FLAG_SENT) 294*0Sstevel@tonic-gate #define SCTP_CHUNK_CANSEND(mp) \ 295*0Sstevel@tonic-gate (!(SCTP_CHUNK_ABANDONED(mp)) && \ 296*0Sstevel@tonic-gate (((mp)->b_flag & (SCTP_CHUNK_FLAG_REXMIT|SCTP_CHUNK_FLAG_SENT)) != \ 297*0Sstevel@tonic-gate SCTP_CHUNK_FLAG_SENT)) 298*0Sstevel@tonic-gate 299*0Sstevel@tonic-gate #define SCTP_CHUNK_DEST(mp) ((sctp_faddr_t *)(mp)->b_queue) 300*0Sstevel@tonic-gate #define SCTP_SET_CHUNK_DEST(mp, fp) ((mp)->b_queue = (queue_t *)fp) 301*0Sstevel@tonic-gate 302*0Sstevel@tonic-gate #define SCTP_CHUNK_REXMIT(mp) ((mp)->b_flag |= SCTP_CHUNK_FLAG_REXMIT) 303*0Sstevel@tonic-gate #define SCTP_CHUNK_CLEAR_REXMIT(mp) ((mp)->b_flag &= ~SCTP_CHUNK_FLAG_REXMIT) 304*0Sstevel@tonic-gate #define SCTP_CHUNK_WANT_REXMIT(mp) ((mp)->b_flag & SCTP_CHUNK_FLAG_REXMIT) 305*0Sstevel@tonic-gate 306*0Sstevel@tonic-gate #define SCTP_CHUNK_ACKED(mp) \ 307*0Sstevel@tonic-gate ((mp)->b_flag = (SCTP_CHUNK_FLAG_SENT|SCTP_CHUNK_FLAG_ACKED)) 308*0Sstevel@tonic-gate #define SCTP_CHUNK_ISACKED(mp) ((mp)->b_flag & SCTP_CHUNK_FLAG_ACKED) 309*0Sstevel@tonic-gate #define SCTP_CHUNK_CLEAR_ACKED(mp) ((mp)->b_flag &= ~SCTP_CHUNK_FLAG_ACKED) 310*0Sstevel@tonic-gate 311*0Sstevel@tonic-gate #define SCTP_CHUNK_SACKCNT(mp) ((intptr_t)((mp)->b_prev)) 312*0Sstevel@tonic-gate #define SCTP_CHUNK_SET_SACKCNT(mp, val) ((mp)->b_prev = \ 313*0Sstevel@tonic-gate (mblk_t *)(uintptr_t)(val)) 314*0Sstevel@tonic-gate 315*0Sstevel@tonic-gate #define SCTP_MSG_SET_CHUNKED(mp) ((mp)->b_flag |= SCTP_MSG_FLAG_CHUNKED) 316*0Sstevel@tonic-gate #define SCTP_MSG_CLEAR_CHUNKED(mp)((mp)->b_flag &= ~SCTP_MSG_FLAG_CHUNKED) 317*0Sstevel@tonic-gate #define SCTP_IS_MSG_CHUNKED(mp) ((mp)->b_flag & SCTP_MSG_FLAG_CHUNKED) 318*0Sstevel@tonic-gate 319*0Sstevel@tonic-gate /* For PR-SCTP */ 320*0Sstevel@tonic-gate #define SCTP_ABANDON_CHUNK(mp) ((mp)->b_flag |= SCTP_CHUNK_FLAG_ABANDONED) 321*0Sstevel@tonic-gate #define SCTP_CHUNK_ABANDONED(mp) \ 322*0Sstevel@tonic-gate ((mp)->b_flag & SCTP_CHUNK_FLAG_ABANDONED) 323*0Sstevel@tonic-gate 324*0Sstevel@tonic-gate #define SCTP_MSG_SET_ABANDONED(mp) \ 325*0Sstevel@tonic-gate ((mp)->b_flag |= SCTP_MSG_FLAG_ABANDONED) 326*0Sstevel@tonic-gate #define SCTP_MSG_CLEAR_ABANDONED(mp)((mp)->b_flag &= ~SCTP_MSG_FLAG_ABANDONED) 327*0Sstevel@tonic-gate #define SCTP_IS_MSG_ABANDONED(mp) ((mp)->b_flag & SCTP_MSG_FLAG_ABANDONED) 328*0Sstevel@tonic-gate 329*0Sstevel@tonic-gate /* 330*0Sstevel@tonic-gate * Check if a message has expired. A message is expired if 331*0Sstevel@tonic-gate * 1. It has a non-zero time to live value and has not been sent before 332*0Sstevel@tonic-gate * that time expires. 333*0Sstevel@tonic-gate * 2. It is sent using PRSCTP and it has not been SACK'ed before 334*0Sstevel@tonic-gate * its lifetime expires. 335*0Sstevel@tonic-gate */ 336*0Sstevel@tonic-gate #define SCTP_MSG_TO_BE_ABANDONED(meta, mhdr, sctp) \ 337*0Sstevel@tonic-gate (((!SCTP_CHUNK_ISSENT((meta)->b_cont) && (mhdr)->smh_ttl > 0) || \ 338*0Sstevel@tonic-gate ((sctp)->sctp_prsctp_aware && ((mhdr)->smh_flags & MSG_PR_SCTP))) && \ 339*0Sstevel@tonic-gate ((lbolt64 - (mhdr)->smh_tob) > (mhdr)->smh_ttl)) 340*0Sstevel@tonic-gate 341*0Sstevel@tonic-gate /* SCTP association hash function. */ 342*0Sstevel@tonic-gate #define SCTP_CONN_HASH(ports) \ 343*0Sstevel@tonic-gate ((((ports) ^ ((ports) >> 16)) * 31) & (sctp_conn_hash_size - 1)) 344*0Sstevel@tonic-gate 345*0Sstevel@tonic-gate /* 346*0Sstevel@tonic-gate * Bind hash array size and hash function. The size must be a power 347*0Sstevel@tonic-gate * of 2 and lport must be in host byte order. 348*0Sstevel@tonic-gate */ 349*0Sstevel@tonic-gate #define SCTP_BIND_FANOUT_SIZE 2048 350*0Sstevel@tonic-gate #define SCTP_BIND_HASH(lport) (((lport) * 31) & (SCTP_BIND_FANOUT_SIZE - 1)) 351*0Sstevel@tonic-gate 352*0Sstevel@tonic-gate /* options that SCTP negotiates during association establishment */ 353*0Sstevel@tonic-gate #define SCTP_PRSCTP_OPTION 0x01 354*0Sstevel@tonic-gate 355*0Sstevel@tonic-gate /* 356*0Sstevel@tonic-gate * Listener hash array size and hash function. The size must be a power 357*0Sstevel@tonic-gate * of 2 and lport must be in host byte order. 358*0Sstevel@tonic-gate */ 359*0Sstevel@tonic-gate #define SCTP_LISTEN_FANOUT_SIZE 512 360*0Sstevel@tonic-gate #define SCTP_LISTEN_HASH(lport) (((lport) * 31) & (SCTP_LISTEN_FANOUT_SIZE - 1)) 361*0Sstevel@tonic-gate 362*0Sstevel@tonic-gate typedef struct sctp_tf_s { 363*0Sstevel@tonic-gate struct sctp_s *tf_sctp; 364*0Sstevel@tonic-gate kmutex_t tf_lock; 365*0Sstevel@tonic-gate } sctp_tf_t; 366*0Sstevel@tonic-gate 367*0Sstevel@tonic-gate /* SCTP association hash list */ 368*0Sstevel@tonic-gate extern sctp_tf_t *sctp_conn_fanout; 369*0Sstevel@tonic-gate /* Size of sctp_conn_fanout */ 370*0Sstevel@tonic-gate extern uint_t sctp_conn_hash_size; 371*0Sstevel@tonic-gate 372*0Sstevel@tonic-gate /* SCTP bind hash list - all sctp_t with state >= BOUND. */ 373*0Sstevel@tonic-gate extern sctp_tf_t sctp_bind_fanout[]; 374*0Sstevel@tonic-gate 375*0Sstevel@tonic-gate /* SCTP listener hash list - all sctp_t with state == LISTEN. */ 376*0Sstevel@tonic-gate extern sctp_tf_t sctp_listen_fanout[]; 377*0Sstevel@tonic-gate 378*0Sstevel@tonic-gate /* Round up the value to the nearest mss. */ 379*0Sstevel@tonic-gate #define MSS_ROUNDUP(value, mss) ((((value) - 1) / (mss) + 1) * (mss)) 380*0Sstevel@tonic-gate 381*0Sstevel@tonic-gate extern sin_t sctp_sin_null; /* Zero address for quick clears */ 382*0Sstevel@tonic-gate extern sin6_t sctp_sin6_null; /* Zero address for quick clears */ 383*0Sstevel@tonic-gate 384*0Sstevel@tonic-gate #define SCTP_IS_DETACHED(sctp) ((sctp)->sctp_detached) 385*0Sstevel@tonic-gate 386*0Sstevel@tonic-gate extern mib2_sctp_t sctp_mib; /* SNMP fixed size info */ 387*0Sstevel@tonic-gate 388*0Sstevel@tonic-gate /* 389*0Sstevel@tonic-gate * Object to represent database of options to search passed to 390*0Sstevel@tonic-gate * {sock,tpi}optcom_req() interface routine to take care of option 391*0Sstevel@tonic-gate * management and associated methods. 392*0Sstevel@tonic-gate * XXX These and other externs should ideally move to a SCTP header 393*0Sstevel@tonic-gate */ 394*0Sstevel@tonic-gate extern optdb_obj_t sctp_opt_obj; 395*0Sstevel@tonic-gate extern uint_t sctp_max_optbuf_len; 396*0Sstevel@tonic-gate 397*0Sstevel@tonic-gate /* Data structure used to track received TSNs */ 398*0Sstevel@tonic-gate typedef struct sctp_set_s { 399*0Sstevel@tonic-gate struct sctp_set_s *next; 400*0Sstevel@tonic-gate struct sctp_set_s *prev; 401*0Sstevel@tonic-gate uint32_t begin; 402*0Sstevel@tonic-gate uint32_t end; 403*0Sstevel@tonic-gate } sctp_set_t; 404*0Sstevel@tonic-gate 405*0Sstevel@tonic-gate /* Data structure used to track TSNs for PR-SCTP */ 406*0Sstevel@tonic-gate typedef struct sctp_ftsn_set_s { 407*0Sstevel@tonic-gate struct sctp_ftsn_set_s *next; 408*0Sstevel@tonic-gate ftsn_entry_t ftsn_entries; 409*0Sstevel@tonic-gate } sctp_ftsn_set_t; 410*0Sstevel@tonic-gate 411*0Sstevel@tonic-gate /* Data structure used to track incoming SCTP streams */ 412*0Sstevel@tonic-gate typedef struct sctp_instr_s { 413*0Sstevel@tonic-gate mblk_t *istr_msgs; 414*0Sstevel@tonic-gate int istr_nmsgs; 415*0Sstevel@tonic-gate uint16_t nextseq; 416*0Sstevel@tonic-gate struct sctp_s *sctp; 417*0Sstevel@tonic-gate mblk_t *istr_reass; 418*0Sstevel@tonic-gate } sctp_instr_t; 419*0Sstevel@tonic-gate 420*0Sstevel@tonic-gate /* Reassembly data structure (per-stream) */ 421*0Sstevel@tonic-gate typedef struct sctp_reass_s { 422*0Sstevel@tonic-gate uint16_t ssn; 423*0Sstevel@tonic-gate uint16_t needed; 424*0Sstevel@tonic-gate uint16_t got; 425*0Sstevel@tonic-gate mblk_t *tail; 426*0Sstevel@tonic-gate boolean_t partial_delivered; 427*0Sstevel@tonic-gate } sctp_reass_t; 428*0Sstevel@tonic-gate 429*0Sstevel@tonic-gate /* debugging */ 430*0Sstevel@tonic-gate #undef dprint 431*0Sstevel@tonic-gate #if defined(DEBUG) && !defined(lint) 432*0Sstevel@tonic-gate extern int sctpdebug; 433*0Sstevel@tonic-gate 434*0Sstevel@tonic-gate #define dprint(level, args) { if (sctpdebug > (level)) printf args; } 435*0Sstevel@tonic-gate 436*0Sstevel@tonic-gate #else /* define(DEBUG) && !defined(lint) */ 437*0Sstevel@tonic-gate 438*0Sstevel@tonic-gate #define dprint(level, args) {} 439*0Sstevel@tonic-gate 440*0Sstevel@tonic-gate #endif /* defined(DEBUG) && !defined(lint) */ 441*0Sstevel@tonic-gate 442*0Sstevel@tonic-gate 443*0Sstevel@tonic-gate /* Peer address tracking */ 444*0Sstevel@tonic-gate 445*0Sstevel@tonic-gate /* 446*0Sstevel@tonic-gate * States for peer addresses 447*0Sstevel@tonic-gate * 448*0Sstevel@tonic-gate * SCTP_FADDRS_UNCONFIRMED: we have not communicated with this peer address 449*0Sstevel@tonic-gate * before, mark it as unconfirmed so that we will not send data to it. 450*0Sstevel@tonic-gate * All addresses initially are in unconfirmed state and required 451*0Sstevel@tonic-gate * validation. SCTP sends a heartbeat to each of them and when it gets 452*0Sstevel@tonic-gate * back a heartbeat ACK, the address will be marked as alive. This 453*0Sstevel@tonic-gate * validation fixes a security issue with multihoming. If an attacker 454*0Sstevel@tonic-gate * establishes an association with us and tells us that it has addresses 455*0Sstevel@tonic-gate * belonging to another host A, this will prevent A from communicating 456*0Sstevel@tonic-gate * with us. This is fixed by peer address validation. In the above case, 457*0Sstevel@tonic-gate * A will respond with an abort. 458*0Sstevel@tonic-gate * 459*0Sstevel@tonic-gate * SCTP_FADDRS_ALIVE: this peer address is alive and we can communicate with 460*0Sstevel@tonic-gate * it with no problem. 461*0Sstevel@tonic-gate * 462*0Sstevel@tonic-gate * SCTP_FADDRS_DOWN: we have exceeded the retransmission limit to this 463*0Sstevel@tonic-gate * peer address. Once an address is marked down, we will only send 464*0Sstevel@tonic-gate * a heartbeat to it every hb_interval in case it becomes alive now. 465*0Sstevel@tonic-gate * 466*0Sstevel@tonic-gate * SCTP_FADDRS_UNREACH: there is no suitable source address to send to 467*0Sstevel@tonic-gate * this peer address. For example, the peer address is v6 but we only 468*0Sstevel@tonic-gate * have v4 addresses. It is marked unreachable until there is an 469*0Sstevel@tonic-gate * address configuration change. At that time, mark these addresses 470*0Sstevel@tonic-gate * as unconfirmed and try again to see if those unreachable addresses 471*0Sstevel@tonic-gate * are OK as we may have more source addresses. 472*0Sstevel@tonic-gate */ 473*0Sstevel@tonic-gate typedef enum { 474*0Sstevel@tonic-gate SCTP_FADDRS_UNREACH, 475*0Sstevel@tonic-gate SCTP_FADDRS_DOWN, 476*0Sstevel@tonic-gate SCTP_FADDRS_ALIVE, 477*0Sstevel@tonic-gate SCTP_FADDRS_UNCONFIRMED 478*0Sstevel@tonic-gate } faddr_state_t; 479*0Sstevel@tonic-gate 480*0Sstevel@tonic-gate typedef struct sctp_faddr_s { 481*0Sstevel@tonic-gate struct sctp_faddr_s *next; 482*0Sstevel@tonic-gate faddr_state_t state; 483*0Sstevel@tonic-gate 484*0Sstevel@tonic-gate in6_addr_t faddr; 485*0Sstevel@tonic-gate in6_addr_t saddr; 486*0Sstevel@tonic-gate 487*0Sstevel@tonic-gate int64_t hb_expiry; /* time to retransmit heartbeat */ 488*0Sstevel@tonic-gate uint32_t hb_interval; /* the heartbeat interval */ 489*0Sstevel@tonic-gate 490*0Sstevel@tonic-gate int rto; /* RTO in tick */ 491*0Sstevel@tonic-gate int srtt; /* Smoothed RTT in tick */ 492*0Sstevel@tonic-gate int rttvar; /* RTT variance in tick */ 493*0Sstevel@tonic-gate uint32_t rtt_updates; 494*0Sstevel@tonic-gate int strikes; 495*0Sstevel@tonic-gate int max_retr; 496*0Sstevel@tonic-gate uint32_t sfa_pmss; 497*0Sstevel@tonic-gate uint32_t cwnd; 498*0Sstevel@tonic-gate uint32_t ssthresh; 499*0Sstevel@tonic-gate uint32_t suna; /* sent - unack'ed */ 500*0Sstevel@tonic-gate uint32_t pba; /* partial bytes acked */ 501*0Sstevel@tonic-gate uint32_t acked; 502*0Sstevel@tonic-gate int64_t lastactive; 503*0Sstevel@tonic-gate mblk_t *timer_mp; /* retransmission timer control */ 504*0Sstevel@tonic-gate uint32_t 505*0Sstevel@tonic-gate hb_pending : 1, 506*0Sstevel@tonic-gate timer_running : 1, 507*0Sstevel@tonic-gate df : 1, 508*0Sstevel@tonic-gate pmtu_discovered : 1, 509*0Sstevel@tonic-gate 510*0Sstevel@tonic-gate rc_timer_running : 1, 511*0Sstevel@tonic-gate isv4 : 1; 512*0Sstevel@tonic-gate 513*0Sstevel@tonic-gate mblk_t *rc_timer_mp; /* reliable control chunk timer */ 514*0Sstevel@tonic-gate ire_t *ire; /* cached IRE */ 515*0Sstevel@tonic-gate uint32_t T3expire; /* # of times T3 timer expired */ 516*0Sstevel@tonic-gate 517*0Sstevel@tonic-gate uint64_t hb_secret; /* per addr "secret" in heartbeat */ 518*0Sstevel@tonic-gate } sctp_faddr_t; 519*0Sstevel@tonic-gate 520*0Sstevel@tonic-gate /* Flags to indicate supported address type in the PARM_SUP_ADDRS. */ 521*0Sstevel@tonic-gate #define PARM_SUPP_V6 0x1 522*0Sstevel@tonic-gate #define PARM_SUPP_V4 0x2 523*0Sstevel@tonic-gate 524*0Sstevel@tonic-gate /* 525*0Sstevel@tonic-gate * Set heartbeat interval plus jitter. The jitter is supposed to be random, 526*0Sstevel@tonic-gate * up to +/- 50% of the RTO. We use gethrtime() here for performance reason 527*0Sstevel@tonic-gate * as the jitter does not really need to be "very" random. 528*0Sstevel@tonic-gate */ 529*0Sstevel@tonic-gate #define SET_HB_INTVL(fp) \ 530*0Sstevel@tonic-gate ((fp)->hb_interval + (fp)->rto + ((fp)->rto >> 1) - \ 531*0Sstevel@tonic-gate (uint_t)gethrtime() % (fp)->rto); 532*0Sstevel@tonic-gate 533*0Sstevel@tonic-gate #define SCTP_IPIF_HASH 16 534*0Sstevel@tonic-gate 535*0Sstevel@tonic-gate typedef struct sctp_ipif_hash_s { 536*0Sstevel@tonic-gate list_t sctp_ipif_list; 537*0Sstevel@tonic-gate int ipif_count; 538*0Sstevel@tonic-gate } sctp_ipif_hash_t; 539*0Sstevel@tonic-gate 540*0Sstevel@tonic-gate struct sctp_s; 541*0Sstevel@tonic-gate 542*0Sstevel@tonic-gate /* 543*0Sstevel@tonic-gate * Control structure for each open SCTP stream, 544*0Sstevel@tonic-gate * defined only within the kernel or for a kmem user. 545*0Sstevel@tonic-gate * NOTE: sctp_reinit_values MUST have a line for each field in this structure! 546*0Sstevel@tonic-gate */ 547*0Sstevel@tonic-gate #if (defined(_KERNEL) || defined(_KMEMUSER)) 548*0Sstevel@tonic-gate 549*0Sstevel@tonic-gate typedef struct sctp_s { 550*0Sstevel@tonic-gate 551*0Sstevel@tonic-gate /* 552*0Sstevel@tonic-gate * The following is shared with (and duplicated) in IP, so if you 553*0Sstevel@tonic-gate * make changes, make sure you also change things in ip_sctp.c. 554*0Sstevel@tonic-gate */ 555*0Sstevel@tonic-gate struct sctp_s *sctp_conn_hash_next; 556*0Sstevel@tonic-gate struct sctp_s *sctp_conn_hash_prev; 557*0Sstevel@tonic-gate 558*0Sstevel@tonic-gate struct sctp_s *sctp_listen_hash_next; 559*0Sstevel@tonic-gate struct sctp_s *sctp_listen_hash_prev; 560*0Sstevel@tonic-gate 561*0Sstevel@tonic-gate sctp_tf_t *sctp_listen_tfp; /* Ptr to tf */ 562*0Sstevel@tonic-gate sctp_tf_t *sctp_conn_tfp; /* Ptr to tf */ 563*0Sstevel@tonic-gate 564*0Sstevel@tonic-gate /* Global list of sctp */ 565*0Sstevel@tonic-gate list_node_t sctp_list; 566*0Sstevel@tonic-gate 567*0Sstevel@tonic-gate sctp_faddr_t *sctp_faddrs; 568*0Sstevel@tonic-gate sctp_ipif_hash_t sctp_saddrs[SCTP_IPIF_HASH]; 569*0Sstevel@tonic-gate int sctp_nsaddrs; 570*0Sstevel@tonic-gate 571*0Sstevel@tonic-gate /* 572*0Sstevel@tonic-gate * These fields contain the same information as sctp_sctph->th_*port. 573*0Sstevel@tonic-gate * However, the lookup functions can not use the header fields 574*0Sstevel@tonic-gate * since during IP option manipulation the sctp_sctph pointer 575*0Sstevel@tonic-gate * changes. 576*0Sstevel@tonic-gate */ 577*0Sstevel@tonic-gate union { 578*0Sstevel@tonic-gate struct { 579*0Sstevel@tonic-gate in_port_t sctpu_fport; /* Remote port */ 580*0Sstevel@tonic-gate in_port_t sctpu_lport; /* Local port */ 581*0Sstevel@tonic-gate } sctpu_ports1; 582*0Sstevel@tonic-gate uint32_t sctpu_ports2; /* Rem port, */ 583*0Sstevel@tonic-gate /* local port */ 584*0Sstevel@tonic-gate /* Used for SCTP_MATCH performance */ 585*0Sstevel@tonic-gate } sctp_sctpu; 586*0Sstevel@tonic-gate #define sctp_fport sctp_sctpu.sctpu_ports1.sctpu_fport 587*0Sstevel@tonic-gate #define sctp_lport sctp_sctpu.sctpu_ports1.sctpu_lport 588*0Sstevel@tonic-gate #define sctp_ports sctp_sctpu.sctpu_ports2 589*0Sstevel@tonic-gate 590*0Sstevel@tonic-gate kmutex_t sctp_lock; 591*0Sstevel@tonic-gate kcondvar_t sctp_cv; 592*0Sstevel@tonic-gate boolean_t sctp_running; 593*0Sstevel@tonic-gate 594*0Sstevel@tonic-gate void *sctp_ulpd; /* SCTP upper layer desc. */ 595*0Sstevel@tonic-gate 596*0Sstevel@tonic-gate struct sctp_upcalls_s sctp_upcalls; /* upcalls for sctp_ulpd */ 597*0Sstevel@tonic-gate #define sctp_ulp_newconn sctp_upcalls.su_newconn 598*0Sstevel@tonic-gate #define sctp_ulp_connected sctp_upcalls.su_connected 599*0Sstevel@tonic-gate #define sctp_ulp_disconnected sctp_upcalls.su_disconnected 600*0Sstevel@tonic-gate #define sctp_ulp_disconnecting sctp_upcalls.su_disconnecting 601*0Sstevel@tonic-gate #define sctp_ulp_recv sctp_upcalls.su_recv 602*0Sstevel@tonic-gate #define sctp_ulp_xmitted sctp_upcalls.su_xmitted 603*0Sstevel@tonic-gate #define sctp_ulp_prop sctp_upcalls.su_properties 604*0Sstevel@tonic-gate 605*0Sstevel@tonic-gate int32_t sctp_state; 606*0Sstevel@tonic-gate 607*0Sstevel@tonic-gate conn_t *sctp_connp; /* conn_t stuff */ 608*0Sstevel@tonic-gate #define sctp_zoneid sctp_connp->conn_zoneid 609*0Sstevel@tonic-gate #define sctp_credp sctp_connp->conn_cred 610*0Sstevel@tonic-gate 611*0Sstevel@tonic-gate /* Peer address tracking */ 612*0Sstevel@tonic-gate sctp_faddr_t *sctp_lastfaddr; /* last faddr in list */ 613*0Sstevel@tonic-gate sctp_faddr_t *sctp_primary; /* primary faddr */ 614*0Sstevel@tonic-gate sctp_faddr_t *sctp_current; /* current faddr */ 615*0Sstevel@tonic-gate sctp_faddr_t *sctp_lastdata; /* last data seen from this */ 616*0Sstevel@tonic-gate 617*0Sstevel@tonic-gate /* Outbound data tracking */ 618*0Sstevel@tonic-gate mblk_t *sctp_xmit_head; 619*0Sstevel@tonic-gate mblk_t *sctp_xmit_tail; 620*0Sstevel@tonic-gate mblk_t *sctp_xmit_unsent; 621*0Sstevel@tonic-gate mblk_t *sctp_xmit_unsent_tail; 622*0Sstevel@tonic-gate mblk_t *sctp_xmit_unacked; 623*0Sstevel@tonic-gate 624*0Sstevel@tonic-gate int32_t sctp_unacked; /* # of unacked bytes */ 625*0Sstevel@tonic-gate int32_t sctp_unsent; /* # of unsent bytes in hand */ 626*0Sstevel@tonic-gate 627*0Sstevel@tonic-gate uint32_t sctp_ltsn; /* Local instance TSN */ 628*0Sstevel@tonic-gate uint32_t sctp_lastack_rxd; /* Last rx'd cumtsn */ 629*0Sstevel@tonic-gate uint32_t sctp_recovery_tsn; /* Exit from fast recovery */ 630*0Sstevel@tonic-gate uint32_t sctp_adv_pap; /* Adv. Peer Ack Point */ 631*0Sstevel@tonic-gate 632*0Sstevel@tonic-gate uint16_t sctp_num_ostr; 633*0Sstevel@tonic-gate uint16_t *sctp_ostrcntrs; 634*0Sstevel@tonic-gate 635*0Sstevel@tonic-gate /* sendmsg() default parameters */ 636*0Sstevel@tonic-gate uint16_t sctp_def_stream; /* default stream id */ 637*0Sstevel@tonic-gate uint16_t sctp_def_flags; /* default xmit flags */ 638*0Sstevel@tonic-gate uint32_t sctp_def_ppid; /* default payload id */ 639*0Sstevel@tonic-gate uint32_t sctp_def_context; /* default context */ 640*0Sstevel@tonic-gate uint32_t sctp_def_timetolive; /* default msg TTL */ 641*0Sstevel@tonic-gate 642*0Sstevel@tonic-gate /* Inbound data tracking */ 643*0Sstevel@tonic-gate sctp_set_t *sctp_sack_info; /* Sack tracking */ 644*0Sstevel@tonic-gate mblk_t *sctp_ack_mp; /* Delayed ACK timer block */ 645*0Sstevel@tonic-gate sctp_instr_t *sctp_instr; /* Instream trackers */ 646*0Sstevel@tonic-gate mblk_t *sctp_uo_frags; /* Un-ordered msg. fragments */ 647*0Sstevel@tonic-gate uint32_t sctp_ftsn; /* Peer's TSN */ 648*0Sstevel@tonic-gate uint32_t sctp_lastacked; /* last cumtsn SACKd */ 649*0Sstevel@tonic-gate uint16_t sctp_num_istr; /* No. of instreams */ 650*0Sstevel@tonic-gate int32_t sctp_istr_nmsgs; /* No. of chunks in instreams */ 651*0Sstevel@tonic-gate int32_t sctp_sack_gaps; /* No. of received gaps */ 652*0Sstevel@tonic-gate int32_t sctp_sack_toggle; /* SACK every other pkt */ 653*0Sstevel@tonic-gate 654*0Sstevel@tonic-gate /* RTT calculation */ 655*0Sstevel@tonic-gate uint32_t sctp_rtt_tsn; 656*0Sstevel@tonic-gate int64_t sctp_out_time; 657*0Sstevel@tonic-gate 658*0Sstevel@tonic-gate /* Stats */ 659*0Sstevel@tonic-gate uint64_t sctp_opkts; /* sent pkts */ 660*0Sstevel@tonic-gate uint64_t sctp_obchunks; /* sent control chunks */ 661*0Sstevel@tonic-gate uint64_t sctp_odchunks; /* sent ordered data chunks */ 662*0Sstevel@tonic-gate uint64_t sctp_oudchunks; /* sent unord data chunks */ 663*0Sstevel@tonic-gate uint64_t sctp_rxtchunks; /* retransmitted chunks */ 664*0Sstevel@tonic-gate uint64_t sctp_ipkts; /* recv pkts */ 665*0Sstevel@tonic-gate uint64_t sctp_ibchunks; /* recv control chunks */ 666*0Sstevel@tonic-gate uint64_t sctp_idchunks; /* recv ordered data chunks */ 667*0Sstevel@tonic-gate uint64_t sctp_iudchunks; /* recv unord data chunks */ 668*0Sstevel@tonic-gate uint64_t sctp_fragdmsgs; 669*0Sstevel@tonic-gate uint64_t sctp_reassmsgs; 670*0Sstevel@tonic-gate uint32_t sctp_T1expire; /* # of times T1timer expired */ 671*0Sstevel@tonic-gate uint32_t sctp_T2expire; /* # of times T2timer expired */ 672*0Sstevel@tonic-gate uint32_t sctp_T3expire; /* # of times T3timer expired */ 673*0Sstevel@tonic-gate uint32_t sctp_assoc_start_time; /* time when assoc was est. */ 674*0Sstevel@tonic-gate 675*0Sstevel@tonic-gate /* Outbound flow control */ 676*0Sstevel@tonic-gate int32_t sctp_xmit_hiwater; /* Send high water mark */ 677*0Sstevel@tonic-gate int32_t sctp_xmit_lowater; /* Send low water mark */ 678*0Sstevel@tonic-gate uint32_t sctp_frwnd; /* Peer RWND */ 679*0Sstevel@tonic-gate uint32_t sctp_cwnd_max; 680*0Sstevel@tonic-gate 681*0Sstevel@tonic-gate /* Inbound flow control */ 682*0Sstevel@tonic-gate int32_t sctp_rwnd; /* Current receive window */ 683*0Sstevel@tonic-gate int32_t sctp_rxqueued; /* No. of bytes in RX q's */ 684*0Sstevel@tonic-gate 685*0Sstevel@tonic-gate /* Pre-initialized composite headers */ 686*0Sstevel@tonic-gate char *sctp_iphc; /* v4 sctp/ip hdr template buffer */ 687*0Sstevel@tonic-gate char *sctp_iphc6; /* v6 sctp/ip hdr template buffer */ 688*0Sstevel@tonic-gate 689*0Sstevel@tonic-gate int32_t sctp_iphc_len; /* actual allocated v4 buffer size */ 690*0Sstevel@tonic-gate int32_t sctp_iphc6_len; /* actual allocated v6 buffer size */ 691*0Sstevel@tonic-gate 692*0Sstevel@tonic-gate int32_t sctp_hdr_len; /* len of combined SCTP/IP v4 hdr */ 693*0Sstevel@tonic-gate int32_t sctp_hdr6_len; /* len of combined SCTP/IP v6 hdr */ 694*0Sstevel@tonic-gate 695*0Sstevel@tonic-gate ipha_t *sctp_ipha; /* IPv4 header in the buffer */ 696*0Sstevel@tonic-gate ip6_t *sctp_ip6h; /* IPv6 header in the buffer */ 697*0Sstevel@tonic-gate 698*0Sstevel@tonic-gate int32_t sctp_ip_hdr_len; /* Byte len of our current v4 hdr */ 699*0Sstevel@tonic-gate int32_t sctp_ip_hdr6_len; /* Byte len of our current v6 hdr */ 700*0Sstevel@tonic-gate 701*0Sstevel@tonic-gate sctp_hdr_t *sctp_sctph; /* sctp header in combined v4 hdr */ 702*0Sstevel@tonic-gate sctp_hdr_t *sctp_sctph6; /* sctp header in combined v6 hdr */ 703*0Sstevel@tonic-gate 704*0Sstevel@tonic-gate uint32_t sctp_lvtag; /* local SCTP instance verf tag */ 705*0Sstevel@tonic-gate uint32_t sctp_fvtag; /* Peer's SCTP verf tag */ 706*0Sstevel@tonic-gate 707*0Sstevel@tonic-gate /* Path MTU Discovery */ 708*0Sstevel@tonic-gate int64_t sctp_last_mtu_probe; 709*0Sstevel@tonic-gate clock_t sctp_mtu_probe_intvl; 710*0Sstevel@tonic-gate uint32_t sctp_mss; /* Max send size (not TCP MSS!) */ 711*0Sstevel@tonic-gate 712*0Sstevel@tonic-gate /* structs sctp_bits, sctp_events are for clearing all bits at once */ 713*0Sstevel@tonic-gate struct { 714*0Sstevel@tonic-gate uint32_t 715*0Sstevel@tonic-gate 716*0Sstevel@tonic-gate sctp_understands_asconf : 1, /* Peer handles ASCONF chunks */ 717*0Sstevel@tonic-gate sctp_debug : 1, /* SO_DEBUG "socket" option. */ 718*0Sstevel@tonic-gate sctp_dontroute : 1, /* SO_DONTROUTE "socket" option. */ 719*0Sstevel@tonic-gate sctp_broadcast : 1, /* SO_BROADCAST "socket" option. */ 720*0Sstevel@tonic-gate 721*0Sstevel@tonic-gate sctp_useloopback : 1, /* SO_USELOOPBACK "socket" option. */ 722*0Sstevel@tonic-gate sctp_cchunk_pend : 1, /* Control chunk in flight. */ 723*0Sstevel@tonic-gate sctp_dgram_errind : 1, /* SO_DGRAM_ERRIND option */ 724*0Sstevel@tonic-gate sctp_reuseaddr : 1, /* SO_REUSEADDR "socket" option. */ 725*0Sstevel@tonic-gate 726*0Sstevel@tonic-gate sctp_linger : 1, /* SO_LINGER turned on */ 727*0Sstevel@tonic-gate sctp_lingering : 1, /* Lingering in close */ 728*0Sstevel@tonic-gate sctp_loopback: 1, /* src and dst are the same machine */ 729*0Sstevel@tonic-gate sctp_force_sack : 1, 730*0Sstevel@tonic-gate 731*0Sstevel@tonic-gate sctp_ack_timer_running: 1, /* Delayed ACK timer running */ 732*0Sstevel@tonic-gate sctp_recvdstaddr : 1, /* return T_EXTCONN_IND with dstaddr */ 733*0Sstevel@tonic-gate sctp_hwcksum : 1, /* The NIC is capable of hwcksum */ 734*0Sstevel@tonic-gate sctp_understands_addip : 1, 735*0Sstevel@tonic-gate 736*0Sstevel@tonic-gate sctp_bound_to_all : 1, 737*0Sstevel@tonic-gate sctp_cansleep : 1, /* itf routines can sleep */ 738*0Sstevel@tonic-gate sctp_detached : 1, /* If we're detached from a stream */ 739*0Sstevel@tonic-gate sctp_send_adaption : 1, /* send adaption layer ind */ 740*0Sstevel@tonic-gate 741*0Sstevel@tonic-gate sctp_recv_adaption : 1, /* received adaption layer ind */ 742*0Sstevel@tonic-gate sctp_ndelay : 1, /* turn off Nagle */ 743*0Sstevel@tonic-gate sctp_condemned : 1, /* this sctp is about to disappear */ 744*0Sstevel@tonic-gate sctp_chk_fast_rexmit : 1, /* check for fast rexmit message */ 745*0Sstevel@tonic-gate sctp_prsctp_aware : 1; /* is peer PR-SCTP aware? */ 746*0Sstevel@tonic-gate } sctp_bits; 747*0Sstevel@tonic-gate struct { 748*0Sstevel@tonic-gate uint32_t 749*0Sstevel@tonic-gate 750*0Sstevel@tonic-gate sctp_recvsndrcvinfo : 1, 751*0Sstevel@tonic-gate sctp_recvassocevnt : 1, 752*0Sstevel@tonic-gate sctp_recvpathevnt : 1, 753*0Sstevel@tonic-gate sctp_recvsendfailevnt : 1, 754*0Sstevel@tonic-gate 755*0Sstevel@tonic-gate sctp_recvpeererr : 1, 756*0Sstevel@tonic-gate sctp_recvshutdownevnt : 1, 757*0Sstevel@tonic-gate sctp_recvpdevnt : 1, 758*0Sstevel@tonic-gate sctp_recvalevnt : 1; 759*0Sstevel@tonic-gate } sctp_events; 760*0Sstevel@tonic-gate #define sctp_priv_stream sctp_bits.sctp_priv_stream 761*0Sstevel@tonic-gate #define sctp_understands_asconf sctp_bits.sctp_understands_asconf 762*0Sstevel@tonic-gate #define sctp_debug sctp_bits.sctp_debug 763*0Sstevel@tonic-gate #define sctp_dontroute sctp_bits.sctp_dontroute 764*0Sstevel@tonic-gate #define sctp_broadcast sctp_bits.sctp_broadcast 765*0Sstevel@tonic-gate #define sctp_useloopback sctp_bits.sctp_useloopback 766*0Sstevel@tonic-gate #define sctp_cchunk_pend sctp_bits.sctp_cchunk_pend 767*0Sstevel@tonic-gate #define sctp_dgram_errind sctp_bits.sctp_dgram_errind 768*0Sstevel@tonic-gate #define sctp_reuseaddr sctp_bits.sctp_reuseaddr 769*0Sstevel@tonic-gate #define sctp_linger sctp_bits.sctp_linger 770*0Sstevel@tonic-gate #define sctp_lingering sctp_bits.sctp_lingering 771*0Sstevel@tonic-gate #define sctp_loopback sctp_bits.sctp_loopback 772*0Sstevel@tonic-gate #define sctp_force_sack sctp_bits.sctp_force_sack 773*0Sstevel@tonic-gate #define sctp_ack_timer_running sctp_bits.sctp_ack_timer_running 774*0Sstevel@tonic-gate #define sctp_recvdstaddr sctp_bits.sctp_recvdstaddr 775*0Sstevel@tonic-gate #define sctp_hwcksum sctp_bits.sctp_hwcksum 776*0Sstevel@tonic-gate #define sctp_understands_addip sctp_bits.sctp_understands_addip 777*0Sstevel@tonic-gate #define sctp_bound_to_all sctp_bits.sctp_bound_to_all 778*0Sstevel@tonic-gate #define sctp_cansleep sctp_bits.sctp_cansleep 779*0Sstevel@tonic-gate #define sctp_detached sctp_bits.sctp_detached 780*0Sstevel@tonic-gate #define sctp_send_adaption sctp_bits.sctp_send_adaption 781*0Sstevel@tonic-gate #define sctp_recv_adaption sctp_bits.sctp_recv_adaption 782*0Sstevel@tonic-gate #define sctp_ndelay sctp_bits.sctp_ndelay 783*0Sstevel@tonic-gate #define sctp_condemned sctp_bits.sctp_condemned 784*0Sstevel@tonic-gate #define sctp_chk_fast_rexmit sctp_bits.sctp_chk_fast_rexmit 785*0Sstevel@tonic-gate #define sctp_prsctp_aware sctp_bits.sctp_prsctp_aware 786*0Sstevel@tonic-gate 787*0Sstevel@tonic-gate #define sctp_recvsndrcvinfo sctp_events.sctp_recvsndrcvinfo 788*0Sstevel@tonic-gate #define sctp_recvassocevnt sctp_events.sctp_recvassocevnt 789*0Sstevel@tonic-gate #define sctp_recvpathevnt sctp_events.sctp_recvpathevnt 790*0Sstevel@tonic-gate #define sctp_recvsendfailevnt sctp_events.sctp_recvsendfailevnt 791*0Sstevel@tonic-gate #define sctp_recvpeererr sctp_events.sctp_recvpeererr 792*0Sstevel@tonic-gate #define sctp_recvshutdownevnt sctp_events.sctp_recvshutdownevnt 793*0Sstevel@tonic-gate #define sctp_recvpdevnt sctp_events.sctp_recvpdevnt 794*0Sstevel@tonic-gate #define sctp_recvalevnt sctp_events.sctp_recvalevnt 795*0Sstevel@tonic-gate 796*0Sstevel@tonic-gate /* Retransmit info */ 797*0Sstevel@tonic-gate mblk_t *sctp_cookie_mp; /* cookie chunk, if rxt needed */ 798*0Sstevel@tonic-gate int32_t sctp_strikes; /* Total number of assoc strikes */ 799*0Sstevel@tonic-gate int32_t sctp_max_init_rxt; 800*0Sstevel@tonic-gate int32_t sctp_pa_max_rxt; /* Max per-assoc retransmit cnt */ 801*0Sstevel@tonic-gate int32_t sctp_pp_max_rxt; /* Max per-path retransmit cnt */ 802*0Sstevel@tonic-gate uint32_t sctp_rto_max; 803*0Sstevel@tonic-gate uint32_t sctp_init_rto_max; 804*0Sstevel@tonic-gate uint32_t sctp_rto_min; 805*0Sstevel@tonic-gate uint32_t sctp_rto_initial; 806*0Sstevel@tonic-gate 807*0Sstevel@tonic-gate int64_t sctp_last_secret_update; 808*0Sstevel@tonic-gate uint8_t sctp_secret[SCTP_SECRET_LEN]; /* for cookie auth */ 809*0Sstevel@tonic-gate uint8_t sctp_old_secret[SCTP_SECRET_LEN]; 810*0Sstevel@tonic-gate uint32_t sctp_cookie_lifetime; /* cookie lifetime in ms */ 811*0Sstevel@tonic-gate 812*0Sstevel@tonic-gate /* 813*0Sstevel@tonic-gate * Address family that app wishes returned addrsses to be in. 814*0Sstevel@tonic-gate * Currently taken from address family used in T_BIND_REQ, but 815*0Sstevel@tonic-gate * should really come from family used in original socket() call. 816*0Sstevel@tonic-gate * Value can be AF_INET or AF_INET6. 817*0Sstevel@tonic-gate */ 818*0Sstevel@tonic-gate uint_t sctp_family; 819*0Sstevel@tonic-gate ushort_t sctp_ipversion; 820*0Sstevel@tonic-gate 821*0Sstevel@tonic-gate /* Bind hash tables */ 822*0Sstevel@tonic-gate kmutex_t *sctp_bind_lockp; /* Ptr to tf_lock */ 823*0Sstevel@tonic-gate struct sctp_s *sctp_bind_hash; 824*0Sstevel@tonic-gate struct sctp_s **sctp_ptpbhn; 825*0Sstevel@tonic-gate 826*0Sstevel@tonic-gate /* Shutdown / cleanup */ 827*0Sstevel@tonic-gate sctp_faddr_t *sctp_shutdown_faddr; /* rotate faddr during shutd */ 828*0Sstevel@tonic-gate int32_t sctp_client_errno; /* How the client screwed up */ 829*0Sstevel@tonic-gate int sctp_lingertime; /* Close linger time (in seconds) */ 830*0Sstevel@tonic-gate kmutex_t sctp_reflock; /* Protects sctp_refcnt & timer mp */ 831*0Sstevel@tonic-gate ushort_t sctp_refcnt; /* No. of pending upstream msg */ 832*0Sstevel@tonic-gate mblk_t *sctp_timer_mp; /* List of fired timers. */ 833*0Sstevel@tonic-gate 834*0Sstevel@tonic-gate /* Misc */ 835*0Sstevel@tonic-gate uint_t sctp_bound_if; /* IPV6_BOUND_IF */ 836*0Sstevel@tonic-gate 837*0Sstevel@tonic-gate mblk_t *sctp_heartbeat_mp; /* Timer block for heartbeats */ 838*0Sstevel@tonic-gate uint32_t sctp_hb_interval; /* Default hb_interval */ 839*0Sstevel@tonic-gate 840*0Sstevel@tonic-gate int32_t sctp_autoclose; /* Auto disconnect in ticks */ 841*0Sstevel@tonic-gate int64_t sctp_active; /* Last time data/sack on this conn */ 842*0Sstevel@tonic-gate uint32_t sctp_tx_adaption_code; /* TX adaptation code */ 843*0Sstevel@tonic-gate uint32_t sctp_rx_adaption_code; /* RX adaptation code */ 844*0Sstevel@tonic-gate 845*0Sstevel@tonic-gate /* Reliable control chunks */ 846*0Sstevel@tonic-gate mblk_t *sctp_cxmit_list; /* Xmit list for control chunks */ 847*0Sstevel@tonic-gate uint32_t sctp_lcsn; /* Our serial number */ 848*0Sstevel@tonic-gate uint32_t sctp_fcsn; /* Peer serial number */ 849*0Sstevel@tonic-gate 850*0Sstevel@tonic-gate /* Per association receive queue */ 851*0Sstevel@tonic-gate kmutex_t sctp_recvq_lock; 852*0Sstevel@tonic-gate mblk_t *sctp_recvq; 853*0Sstevel@tonic-gate mblk_t *sctp_recvq_tail; 854*0Sstevel@tonic-gate taskq_t *sctp_recvq_tq; 855*0Sstevel@tonic-gate 856*0Sstevel@tonic-gate /* Send queue to IP */ 857*0Sstevel@tonic-gate kmutex_t sctp_sendq_lock; 858*0Sstevel@tonic-gate mblk_t *sctp_sendq; 859*0Sstevel@tonic-gate mblk_t *sctp_sendq_tail; 860*0Sstevel@tonic-gate boolean_t sctp_sendq_sending; 861*0Sstevel@tonic-gate 862*0Sstevel@tonic-gate /* IPv6 ancillary data */ 863*0Sstevel@tonic-gate uint_t sctp_ipv6_recvancillary; /* flags */ 864*0Sstevel@tonic-gate #define SCTP_IPV6_RECVPKTINFO 0x01 /* IPV6_RECVPKTINFO opt */ 865*0Sstevel@tonic-gate #define SCTP_IPV6_RECVHOPLIMIT 0x02 /* IPV6_RECVHOPLIMIT opt */ 866*0Sstevel@tonic-gate #define SCTP_IPV6_RECVHOPOPTS 0x04 /* IPV6_RECVHOPOPTS opt */ 867*0Sstevel@tonic-gate #define SCTP_IPV6_RECVDSTOPTS 0x08 /* IPV6_RECVDSTOPTS opt */ 868*0Sstevel@tonic-gate #define SCTP_IPV6_RECVRTHDR 0x10 /* IPV6_RECVRTHDR opt */ 869*0Sstevel@tonic-gate #define SCTP_IPV6_RECVRTDSTOPTS 0x20 /* IPV6_RECVRTHDRDSTOPTS opt */ 870*0Sstevel@tonic-gate 871*0Sstevel@tonic-gate uint_t sctp_recvifindex; /* last rcvd IPV6_RCVPKTINFO */ 872*0Sstevel@tonic-gate uint_t sctp_recvhops; /* " IPV6_RECVHOPLIMIT */ 873*0Sstevel@tonic-gate ip6_hbh_t *sctp_hopopts; /* " IPV6_RECVHOPOPTS */ 874*0Sstevel@tonic-gate ip6_dest_t *sctp_dstopts; /* " IPV6_RECVDSTOPTS */ 875*0Sstevel@tonic-gate ip6_dest_t *sctp_rtdstopts; /* " IPV6_RECVRTHDRDSTOPTS */ 876*0Sstevel@tonic-gate ip6_rthdr_t *sctp_rthdr; /* " IPV6_RECVRTHDR */ 877*0Sstevel@tonic-gate uint_t sctp_hopoptslen; 878*0Sstevel@tonic-gate uint_t sctp_dstoptslen; 879*0Sstevel@tonic-gate uint_t sctp_rtdstoptslen; 880*0Sstevel@tonic-gate uint_t sctp_rthdrlen; 881*0Sstevel@tonic-gate 882*0Sstevel@tonic-gate ip6_pkt_t sctp_sticky_ipp; /* Sticky options */ 883*0Sstevel@tonic-gate #define sctp_ipp_fields sctp_sticky_ipp.ipp_fields 884*0Sstevel@tonic-gate #define sctp_ipp_ifindex sctp_sticky_ipp.ipp_ifindex 885*0Sstevel@tonic-gate #define sctp_ipp_addr sctp_sticky_ipp.ipp_addr 886*0Sstevel@tonic-gate #define sctp_ipp_hoplimit sctp_sticky_ipp.ipp_hoplimit 887*0Sstevel@tonic-gate #define sctp_ipp_hopoptslen sctp_sticky_ipp.ipp_hopoptslen 888*0Sstevel@tonic-gate #define sctp_ipp_rtdstoptslen sctp_sticky_ipp.ipp_rtdstoptslen 889*0Sstevel@tonic-gate #define sctp_ipp_rthdrlen sctp_sticky_ipp.ipp_rthdrlen 890*0Sstevel@tonic-gate #define sctp_ipp_dstoptslen sctp_sticky_ipp.ipp_dstoptslen 891*0Sstevel@tonic-gate #define sctp_ipp_hopopts sctp_sticky_ipp.ipp_hopopts 892*0Sstevel@tonic-gate #define sctp_ipp_rtdstopts sctp_sticky_ipp.ipp_rtdstopts 893*0Sstevel@tonic-gate #define sctp_ipp_rthdr sctp_sticky_ipp.ipp_rthdr 894*0Sstevel@tonic-gate #define sctp_ipp_dstopts sctp_sticky_ipp.ipp_dstopts 895*0Sstevel@tonic-gate #define sctp_ipp_nexthop sctp_sticky_ipp.ipp_nexthop 896*0Sstevel@tonic-gate /* Stats */ 897*0Sstevel@tonic-gate uint64_t sctp_msgcount; 898*0Sstevel@tonic-gate uint64_t sctp_prsctpdrop; 899*0Sstevel@tonic-gate } sctp_t; 900*0Sstevel@tonic-gate 901*0Sstevel@tonic-gate extern list_t sctp_g_list; /* Head of SCTP instance data chain */ 902*0Sstevel@tonic-gate extern kmutex_t sctp_g_lock; 903*0Sstevel@tonic-gate 904*0Sstevel@tonic-gate #endif /* (defined(_KERNEL) || defined(_KMEMUSER)) */ 905*0Sstevel@tonic-gate 906*0Sstevel@tonic-gate extern queue_t *sctp_g_q; /* Default queue used during detached closes */ 907*0Sstevel@tonic-gate extern sctp_t *gsctp; 908*0Sstevel@tonic-gate 909*0Sstevel@tonic-gate /* Padding mblk for SCTP chunks. */ 910*0Sstevel@tonic-gate extern mblk_t *sctp_pad_mp; 911*0Sstevel@tonic-gate 912*0Sstevel@tonic-gate extern void sctp_ack_timer(sctp_t *); 913*0Sstevel@tonic-gate extern size_t sctp_adaption_code_param(sctp_t *, uchar_t *); 914*0Sstevel@tonic-gate extern void sctp_adaption_event(sctp_t *); 915*0Sstevel@tonic-gate extern int sctp_add_faddr(sctp_t *, in6_addr_t *, int); 916*0Sstevel@tonic-gate extern int sctp_add_faddr_first(sctp_t *, in6_addr_t *, int); 917*0Sstevel@tonic-gate extern boolean_t sctp_add_ftsn_set(sctp_ftsn_set_t **, sctp_faddr_t *, mblk_t *, 918*0Sstevel@tonic-gate uint_t *, uint32_t *); 919*0Sstevel@tonic-gate extern boolean_t sctp_add_recvq(sctp_t *, mblk_t *, boolean_t); 920*0Sstevel@tonic-gate extern void sctp_add_sendq(sctp_t *, mblk_t *); 921*0Sstevel@tonic-gate extern void sctp_add_unrec_parm(sctp_parm_hdr_t *, mblk_t **); 922*0Sstevel@tonic-gate extern size_t sctp_addr_params(sctp_t *, int, uchar_t *); 923*0Sstevel@tonic-gate extern size_t sctp_addr_params_len(sctp_t *, int); 924*0Sstevel@tonic-gate extern mblk_t *sctp_add_proto_hdr(sctp_t *, sctp_faddr_t *, mblk_t *, int); 925*0Sstevel@tonic-gate extern void sctp_addr_req(sctp_t *, mblk_t *); 926*0Sstevel@tonic-gate extern sctp_t *sctp_addrlist2sctp(mblk_t *, sctp_hdr_t *, sctp_chunk_hdr_t *, 927*0Sstevel@tonic-gate uint_t, zoneid_t); 928*0Sstevel@tonic-gate extern void sctp_add_hdr(sctp_t *, uchar_t *, size_t); 929*0Sstevel@tonic-gate extern void sctp_check_adv_ack_pt(sctp_t *, mblk_t *, mblk_t *); 930*0Sstevel@tonic-gate extern boolean_t sctp_allocbuf(void **, uint_t *, boolean_t, void *, uint_t); 931*0Sstevel@tonic-gate extern void sctp_assoc_event(sctp_t *, uint16_t, uint16_t, 932*0Sstevel@tonic-gate sctp_chunk_hdr_t *); 933*0Sstevel@tonic-gate 934*0Sstevel@tonic-gate extern void sctp_bind_hash_insert(sctp_tf_t *, sctp_t *, int); 935*0Sstevel@tonic-gate extern void sctp_bind_hash_remove(sctp_t *); 936*0Sstevel@tonic-gate extern in_port_t sctp_bindi(sctp_t *, in_port_t, int, int); 937*0Sstevel@tonic-gate extern int sctp_bind_add(sctp_t *, const void *, uint32_t, boolean_t); 938*0Sstevel@tonic-gate extern int sctp_bind_del(sctp_t *, const void *, uint32_t, boolean_t); 939*0Sstevel@tonic-gate extern int sctp_build_hdrs(sctp_t *); 940*0Sstevel@tonic-gate 941*0Sstevel@tonic-gate extern int sctp_check_abandoned_msg(sctp_t *, mblk_t *); 942*0Sstevel@tonic-gate extern void sctp_chunkify(sctp_t *, int, int); 943*0Sstevel@tonic-gate extern void sctp_clean_death(sctp_t *, int); 944*0Sstevel@tonic-gate extern void sctp_close_eager(sctp_t *); 945*0Sstevel@tonic-gate extern boolean_t sctp_cmpbuf(void *, uint_t, boolean_t, void *, uint_t); 946*0Sstevel@tonic-gate extern int sctp_compare_faddrsets(sctp_faddr_t *, sctp_faddr_t *); 947*0Sstevel@tonic-gate extern void sctp_congest_reset(sctp_t *); 948*0Sstevel@tonic-gate extern void sctp_conn_hash_insert(sctp_tf_t *, sctp_t *, int); 949*0Sstevel@tonic-gate extern void sctp_conn_hash_remove(sctp_t *); 950*0Sstevel@tonic-gate extern sctp_t *sctp_conn_match(in6_addr_t *, in6_addr_t *, uint32_t, uint_t, 951*0Sstevel@tonic-gate zoneid_t); 952*0Sstevel@tonic-gate extern sctp_t *sctp_conn_request(sctp_t *, mblk_t *, uint_t, uint_t, 953*0Sstevel@tonic-gate sctp_init_chunk_t *, mblk_t *); 954*0Sstevel@tonic-gate extern int sctp_conprim_opt_process(queue_t *, mblk_t *, int *, int *, 955*0Sstevel@tonic-gate int *); 956*0Sstevel@tonic-gate extern uint32_t sctp_cumack(sctp_t *, uint32_t, mblk_t **); 957*0Sstevel@tonic-gate extern sctp_t *sctp_create_eager(sctp_t *); 958*0Sstevel@tonic-gate 959*0Sstevel@tonic-gate extern void sctp_dispatch_rput(queue_t *, sctp_t *, sctp_hdr_t *, mblk_t *, 960*0Sstevel@tonic-gate uint_t, uint_t, in6_addr_t); 961*0Sstevel@tonic-gate extern char *sctp_display(sctp_t *, char *); 962*0Sstevel@tonic-gate extern void sctp_display_all(); 963*0Sstevel@tonic-gate 964*0Sstevel@tonic-gate extern void sctp_error_event(sctp_t *, sctp_chunk_hdr_t *); 965*0Sstevel@tonic-gate 966*0Sstevel@tonic-gate extern void sctp_faddr_alive(sctp_t *, sctp_faddr_t *); 967*0Sstevel@tonic-gate extern int sctp_faddr_dead(sctp_t *, sctp_faddr_t *, int); 968*0Sstevel@tonic-gate extern void sctp_faddr_fini(); 969*0Sstevel@tonic-gate extern void sctp_faddr_init(); 970*0Sstevel@tonic-gate extern void sctp_faddr2hdraddr(sctp_faddr_t *, sctp_t *); 971*0Sstevel@tonic-gate extern void sctp_faddr2ire(sctp_t *, sctp_faddr_t *); 972*0Sstevel@tonic-gate extern void sctp_fast_rexmit(sctp_t *); 973*0Sstevel@tonic-gate extern void sctp_fill_sack(sctp_t *, unsigned char *, int); 974*0Sstevel@tonic-gate extern void sctp_free_faddr_timers(sctp_t *); 975*0Sstevel@tonic-gate extern void sctp_free_ftsn_set(sctp_ftsn_set_t *); 976*0Sstevel@tonic-gate extern void sctp_free_msg(mblk_t *); 977*0Sstevel@tonic-gate extern void sctp_free_reass(sctp_instr_t *); 978*0Sstevel@tonic-gate extern void sctp_free_set(sctp_set_t *); 979*0Sstevel@tonic-gate extern void sctp_ftsn_sets_fini(void); 980*0Sstevel@tonic-gate extern void sctp_ftsn_sets_init(void); 981*0Sstevel@tonic-gate 982*0Sstevel@tonic-gate extern int sctp_get_addrparams(sctp_t *, sctp_t *, mblk_t *, 983*0Sstevel@tonic-gate sctp_chunk_hdr_t *, uint_t *); 984*0Sstevel@tonic-gate extern mblk_t *sctp_get_first_sent(sctp_t *); 985*0Sstevel@tonic-gate extern mblk_t *sctp_get_msg_to_send(sctp_t *, mblk_t **, mblk_t *, int *, 986*0Sstevel@tonic-gate int32_t, uint32_t, sctp_faddr_t *); 987*0Sstevel@tonic-gate extern in_port_t sctp_get_next_priv_port(); 988*0Sstevel@tonic-gate 989*0Sstevel@tonic-gate extern int sctp_handle_error(sctp_t *, sctp_hdr_t *, sctp_chunk_hdr_t *, 990*0Sstevel@tonic-gate mblk_t *); 991*0Sstevel@tonic-gate extern void sctp_hash_destroy(void); 992*0Sstevel@tonic-gate extern void sctp_hash_init(void); 993*0Sstevel@tonic-gate extern int sctp_header_init_ipv4(sctp_t *, int); 994*0Sstevel@tonic-gate extern int sctp_header_init_ipv6(sctp_t *, int); 995*0Sstevel@tonic-gate extern void sctp_heartbeat_timer(sctp_t *); 996*0Sstevel@tonic-gate 997*0Sstevel@tonic-gate extern void sctp_icmp_error(sctp_t *, mblk_t *); 998*0Sstevel@tonic-gate extern void sctp_inc_taskq(void); 999*0Sstevel@tonic-gate extern void sctp_info_req(sctp_t *, mblk_t *); 1000*0Sstevel@tonic-gate extern mblk_t *sctp_init_mp(sctp_t *); 1001*0Sstevel@tonic-gate extern boolean_t sctp_initialize_params(sctp_t *, sctp_init_chunk_t *, 1002*0Sstevel@tonic-gate sctp_init_chunk_t *); 1003*0Sstevel@tonic-gate extern uint32_t sctp_init2vtag(sctp_chunk_hdr_t *); 1004*0Sstevel@tonic-gate extern void sctp_intf_event(sctp_t *, in6_addr_t, int, int); 1005*0Sstevel@tonic-gate extern void sctp_input_data(sctp_t *, mblk_t *, mblk_t *); 1006*0Sstevel@tonic-gate extern void sctp_instream_cleanup(sctp_t *, boolean_t); 1007*0Sstevel@tonic-gate extern void sctp_ire2faddr(sctp_t *, sctp_faddr_t *); 1008*0Sstevel@tonic-gate extern int sctp_is_a_faddr_clean(sctp_t *); 1009*0Sstevel@tonic-gate 1010*0Sstevel@tonic-gate extern void sctp_kstat_init(void); 1011*0Sstevel@tonic-gate extern void sctp_kstat_fini(void); 1012*0Sstevel@tonic-gate 1013*0Sstevel@tonic-gate extern ssize_t sctp_link_abort(mblk_t *, uint16_t, char *, size_t, int, 1014*0Sstevel@tonic-gate boolean_t); 1015*0Sstevel@tonic-gate extern void sctp_listen_hash_insert(sctp_tf_t *, sctp_t *); 1016*0Sstevel@tonic-gate extern void sctp_listen_hash_remove(sctp_t *); 1017*0Sstevel@tonic-gate extern sctp_t *sctp_lookup(sctp_t *, in6_addr_t *, sctp_tf_t *, uint32_t *, 1018*0Sstevel@tonic-gate int); 1019*0Sstevel@tonic-gate extern sctp_faddr_t *sctp_lookup_faddr(sctp_t *, in6_addr_t *); 1020*0Sstevel@tonic-gate 1021*0Sstevel@tonic-gate extern mblk_t *sctp_make_err(sctp_t *, uint16_t, void *, size_t); 1022*0Sstevel@tonic-gate extern mblk_t *sctp_make_ftsn_chunk(sctp_t *, sctp_faddr_t *, 1023*0Sstevel@tonic-gate sctp_ftsn_set_t *, uint_t, uint32_t); 1024*0Sstevel@tonic-gate extern void sctp_make_ftsns(sctp_t *, mblk_t *, mblk_t *, mblk_t **, 1025*0Sstevel@tonic-gate sctp_faddr_t *, uint32_t *); 1026*0Sstevel@tonic-gate extern mblk_t *sctp_make_mp(sctp_t *, sctp_faddr_t *, int); 1027*0Sstevel@tonic-gate extern mblk_t *sctp_make_sack(sctp_t *, sctp_faddr_t *, mblk_t *); 1028*0Sstevel@tonic-gate extern void sctp_maxpsz_set(sctp_t *); 1029*0Sstevel@tonic-gate extern void sctp_move_faddr_timers(queue_t *, sctp_t *); 1030*0Sstevel@tonic-gate 1031*0Sstevel@tonic-gate extern void sctp_nd_free(); 1032*0Sstevel@tonic-gate extern int sctp_nd_getset(queue_t *, MBLKP); 1033*0Sstevel@tonic-gate extern boolean_t sctp_nd_init(); 1034*0Sstevel@tonic-gate extern sctp_parm_hdr_t *sctp_next_parm(sctp_parm_hdr_t *, ssize_t *); 1035*0Sstevel@tonic-gate 1036*0Sstevel@tonic-gate extern void sctp_ootb_shutdown_ack(sctp_t *, mblk_t *, uint_t); 1037*0Sstevel@tonic-gate extern size_t sctp_options_param(const sctp_t *, void *, int); 1038*0Sstevel@tonic-gate extern size_t sctp_options_param_len(const sctp_t *, int); 1039*0Sstevel@tonic-gate extern void sctp_output(sctp_t *sctp); 1040*0Sstevel@tonic-gate 1041*0Sstevel@tonic-gate extern boolean_t sctp_param_register(sctpparam_t *, int); 1042*0Sstevel@tonic-gate extern void sctp_partial_delivery_event(sctp_t *); 1043*0Sstevel@tonic-gate extern int sctp_process_cookie(sctp_t *, sctp_chunk_hdr_t *, mblk_t *, 1044*0Sstevel@tonic-gate sctp_init_chunk_t **, sctp_hdr_t *, int *, in6_addr_t *); 1045*0Sstevel@tonic-gate extern void sctp_process_heartbeat(sctp_t *, sctp_chunk_hdr_t *); 1046*0Sstevel@tonic-gate extern void sctp_process_sendq(sctp_t *); 1047*0Sstevel@tonic-gate extern void sctp_process_timer(sctp_t *); 1048*0Sstevel@tonic-gate 1049*0Sstevel@tonic-gate extern void sctp_redo_faddr_srcs(sctp_t *); 1050*0Sstevel@tonic-gate extern void sctp_regift_xmitlist(sctp_t *); 1051*0Sstevel@tonic-gate extern void sctp_return_heartbeat(sctp_t *, sctp_chunk_hdr_t *, mblk_t *); 1052*0Sstevel@tonic-gate extern void sctp_rexmit(sctp_t *, sctp_faddr_t *); 1053*0Sstevel@tonic-gate extern void sctp_rexmit_timer(sctp_t *, sctp_faddr_t *); 1054*0Sstevel@tonic-gate extern sctp_faddr_t *sctp_rotate_faddr(sctp_t *, sctp_faddr_t *); 1055*0Sstevel@tonic-gate 1056*0Sstevel@tonic-gate extern void sctp_sack(sctp_t *, mblk_t *); 1057*0Sstevel@tonic-gate extern void sctp_savebuf(void **, uint_t *, boolean_t, void *, uint_t); 1058*0Sstevel@tonic-gate extern int sctp_secure_restart_check(mblk_t *, sctp_chunk_hdr_t *, 1059*0Sstevel@tonic-gate uint32_t, int); 1060*0Sstevel@tonic-gate extern void sctp_send_abort(sctp_t *, uint32_t, uint16_t, char *, size_t, 1061*0Sstevel@tonic-gate mblk_t *, int, boolean_t); 1062*0Sstevel@tonic-gate extern void sctp_send_cookie_ack(sctp_t *); 1063*0Sstevel@tonic-gate extern void sctp_send_cookie_echo(sctp_t *, sctp_chunk_hdr_t *, mblk_t *); 1064*0Sstevel@tonic-gate extern void sctp_send_err(sctp_t *, mblk_t *, sctp_faddr_t *); 1065*0Sstevel@tonic-gate extern void sctp_send_initack(sctp_t *, sctp_chunk_hdr_t *, mblk_t *); 1066*0Sstevel@tonic-gate extern void sctp_send_shutdown(sctp_t *, int); 1067*0Sstevel@tonic-gate extern void sctp_send_heartbeat(sctp_t *, sctp_faddr_t *); 1068*0Sstevel@tonic-gate extern void sctp_sendfail_event(sctp_t *, mblk_t *, int, boolean_t); 1069*0Sstevel@tonic-gate extern void sctp_set_hdraddrs(sctp_t *); 1070*0Sstevel@tonic-gate extern void sctp_sets_init(); 1071*0Sstevel@tonic-gate extern void sctp_sets_fini(); 1072*0Sstevel@tonic-gate extern void sctp_shutdown_event(sctp_t *); 1073*0Sstevel@tonic-gate extern void sctp_stop_faddr_timers(sctp_t *); 1074*0Sstevel@tonic-gate extern int sctp_shutdown_received(sctp_t *, sctp_chunk_hdr_t *, int, int); 1075*0Sstevel@tonic-gate extern void sctp_shutdown_complete(sctp_t *); 1076*0Sstevel@tonic-gate extern void sctp_set_if_mtu(sctp_t *); 1077*0Sstevel@tonic-gate extern void sctp_set_iplen(sctp_t *, mblk_t *); 1078*0Sstevel@tonic-gate extern void sctp_set_rto(sctp_t *, clock_t); 1079*0Sstevel@tonic-gate extern void sctp_set_ulp_prop(sctp_t *); 1080*0Sstevel@tonic-gate extern size_t sctp_supaddr_param_len(sctp_t *); 1081*0Sstevel@tonic-gate extern size_t sctp_supaddr_param(sctp_t *, uchar_t *); 1082*0Sstevel@tonic-gate 1083*0Sstevel@tonic-gate extern void sctp_timer(sctp_t *, mblk_t *, clock_t); 1084*0Sstevel@tonic-gate extern mblk_t *sctp_timer_alloc(sctp_t *, pfv_t); 1085*0Sstevel@tonic-gate extern void sctp_timer_call(sctp_t *sctp, mblk_t *); 1086*0Sstevel@tonic-gate extern void sctp_timer_free(mblk_t *); 1087*0Sstevel@tonic-gate extern void sctp_timer_stop(mblk_t *); 1088*0Sstevel@tonic-gate extern void sctp_unlink_faddr(sctp_t *, sctp_faddr_t *); 1089*0Sstevel@tonic-gate 1090*0Sstevel@tonic-gate extern in_port_t sctp_update_next_port(in_port_t); 1091*0Sstevel@tonic-gate extern void sctp_update_rtt(sctp_t *, sctp_faddr_t *, clock_t); 1092*0Sstevel@tonic-gate extern void sctp_user_abort(sctp_t *, mblk_t *, boolean_t); 1093*0Sstevel@tonic-gate 1094*0Sstevel@tonic-gate extern void sctp_validate_peer(sctp_t *); 1095*0Sstevel@tonic-gate 1096*0Sstevel@tonic-gate extern void sctp_wput_ioctl(queue_t *, mblk_t *); 1097*0Sstevel@tonic-gate 1098*0Sstevel@tonic-gate extern int sctp_xmit_list_clean(sctp_t *, ssize_t); 1099*0Sstevel@tonic-gate 1100*0Sstevel@tonic-gate extern void sctp_zap_addrs(sctp_t *); 1101*0Sstevel@tonic-gate extern void sctp_zap_faddrs(sctp_t *, int); 1102*0Sstevel@tonic-gate 1103*0Sstevel@tonic-gate /* Send a mp to IP. */ 1104*0Sstevel@tonic-gate #define IP_PUT(mp, conn, isv4) \ 1105*0Sstevel@tonic-gate { \ 1106*0Sstevel@tonic-gate if ((isv4)) \ 1107*0Sstevel@tonic-gate ip_output((conn), (mp), WR(sctp_g_q), IP_WPUT); \ 1108*0Sstevel@tonic-gate else \ 1109*0Sstevel@tonic-gate ip_output_v6((conn), (mp), WR(sctp_g_q), IP_WPUT); \ 1110*0Sstevel@tonic-gate } 1111*0Sstevel@tonic-gate 1112*0Sstevel@tonic-gate #define RUN_SCTP(sctp) \ 1113*0Sstevel@tonic-gate { \ 1114*0Sstevel@tonic-gate mutex_enter(&(sctp)->sctp_lock); \ 1115*0Sstevel@tonic-gate while ((sctp)->sctp_running) \ 1116*0Sstevel@tonic-gate cv_wait(&(sctp)->sctp_cv, &(sctp)->sctp_lock); \ 1117*0Sstevel@tonic-gate (sctp)->sctp_running = B_TRUE; \ 1118*0Sstevel@tonic-gate mutex_exit(&(sctp)->sctp_lock); \ 1119*0Sstevel@tonic-gate } 1120*0Sstevel@tonic-gate 1121*0Sstevel@tonic-gate /* Wake up recvq taskq */ 1122*0Sstevel@tonic-gate #define WAKE_SCTP(sctp) \ 1123*0Sstevel@tonic-gate { \ 1124*0Sstevel@tonic-gate mutex_enter(&(sctp)->sctp_lock); \ 1125*0Sstevel@tonic-gate if ((sctp)->sctp_timer_mp != NULL) \ 1126*0Sstevel@tonic-gate sctp_process_timer(sctp); \ 1127*0Sstevel@tonic-gate (sctp)->sctp_running = B_FALSE; \ 1128*0Sstevel@tonic-gate cv_broadcast(&(sctp)->sctp_cv); \ 1129*0Sstevel@tonic-gate mutex_exit(&(sctp)->sctp_lock); \ 1130*0Sstevel@tonic-gate } 1131*0Sstevel@tonic-gate 1132*0Sstevel@tonic-gate #ifdef __cplusplus 1133*0Sstevel@tonic-gate } 1134*0Sstevel@tonic-gate #endif 1135*0Sstevel@tonic-gate 1136*0Sstevel@tonic-gate #endif /* _INET_SCTP_SCTP_IMPL_H */ 1137