1 /* $KAME: sctp_var.h,v 1.24 2005/03/06 16:04:19 itojun Exp $ */ 2 /* $NetBSD: sctp_var.h,v 1.4 2020/04/27 19:21:43 rjs Exp $ */ 3 4 /* 5 * Copyright (c) 2001, 2002, 2003, 2004 Cisco Systems, Inc. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by Cisco Systems, Inc. 19 * 4. Neither the name of the project nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY CISCO SYSTEMS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL CISCO SYSTEMS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 #ifndef _NETINET_SCTP_VAR_H_ 37 #define _NETINET_SCTP_VAR_H_ 38 39 #include <sys/socketvar.h> 40 #include <netinet/sctp_uio.h> 41 42 /* SCTP Kernel structures */ 43 44 /* 45 * Names for SCTP sysctl objects 46 */ 47 #ifndef __APPLE__ 48 #define SCTPCTL_MAXDGRAM 1 /* max datagram size */ 49 #define SCTPCTL_RECVSPACE 2 /* default receive buffer space */ 50 #define SCTPCTL_AUTOASCONF 3 /* auto asconf enable/disable flag */ 51 #define SCTPCTL_ECN_ENABLE 4 /* Is ecn allowed */ 52 #define SCTPCTL_ECN_NONCE 5 /* Is ecn nonce allowed */ 53 #define SCTPCTL_STRICT_SACK 6 /* strictly require sack'd TSN's to be 54 * smaller than sndnxt. 55 */ 56 #define SCTPCTL_NOCSUM_LO 7 /* Require that the Loopback NOT have 57 * the crc32 checksum on packets routed over 58 * it. 59 */ 60 #define SCTPCTL_STRICT_INIT 8 61 #define SCTPCTL_PEER_CHK_OH 9 62 #define SCTPCTL_MAXBURST 10 63 #define SCTPCTL_MAXCHUNKONQ 11 64 #define SCTPCTL_DELAYED_SACK 12 65 #define SCTPCTL_HB_INTERVAL 13 66 #define SCTPCTL_PMTU_RAISE 14 67 #define SCTPCTL_SHUTDOWN_GUARD 15 68 #define SCTPCTL_SECRET_LIFETIME 16 69 #define SCTPCTL_RTO_MAX 17 70 #define SCTPCTL_RTO_MIN 18 71 #define SCTPCTL_RTO_INITIAL 19 72 #define SCTPCTL_INIT_RTO_MAX 20 73 #define SCTPCTL_COOKIE_LIFE 21 74 #define SCTPCTL_INIT_RTX_MAX 22 75 #define SCTPCTL_ASSOC_RTX_MAX 23 76 #define SCTPCTL_PATH_RTX_MAX 24 77 #define SCTPCTL_NR_OUTGOING_STREAMS 25 78 #ifdef SCTP_DEBUG 79 #define SCTPCTL_DEBUG 26 80 #endif 81 82 #endif 83 84 #if defined(_KERNEL) 85 86 extern const struct pr_usrreqs sctp_usrreqs; 87 88 int sctp_usrreq(struct socket *, int, struct mbuf *, struct mbuf *, 89 struct mbuf *, struct lwp *); 90 91 #define sctp_sbspace(sb) ((long) (((sb)->sb_hiwat > (sb)->sb_cc) ? ((sb)->sb_hiwat - (sb)->sb_cc) : 0)) 92 93 #define sctp_sbspace_sub(a,b) ((a > b) ? (a - b) : 0) 94 95 extern int sctp_sendspace; 96 extern int sctp_recvspace; 97 extern int sctp_ecn; 98 extern int sctp_ecn_nonce; 99 100 #define sctp_ucount_incr(val) { \ 101 val++; \ 102 } 103 104 #define sctp_ucount_decr(val) { \ 105 if (val > 0) { \ 106 val--; \ 107 } else { \ 108 val = 0; \ 109 } \ 110 } 111 112 #define sctp_flight_size_decrease(tp1) do { \ 113 if (tp1->whoTo->flight_size >= tp1->book_size) \ 114 tp1->whoTo->flight_size -= tp1->book_size; \ 115 else \ 116 tp1->whoTo->flight_size = 0; \ 117 } while (0) 118 119 #define sctp_flight_size_increase(tp1) do { \ 120 (tp1)->whoTo->flight_size += (tp1)->book_size; \ 121 } while (0) 122 123 #define sctp_total_flight_decrease(stcb, tp1) do { \ 124 if (stcb->asoc.total_flight >= tp1->book_size) { \ 125 stcb->asoc.total_flight -= tp1->book_size; \ 126 if (stcb->asoc.total_flight_count > 0) \ 127 stcb->asoc.total_flight_count--; \ 128 } else { \ 129 stcb->asoc.total_flight = 0; \ 130 stcb->asoc.total_flight_count = 0; \ 131 } \ 132 } while (0) 133 134 #define sctp_total_flight_increase(stcb, tp1) do { \ 135 (stcb)->asoc.total_flight_count++; \ 136 (stcb)->asoc.total_flight += (tp1)->book_size; \ 137 } while (0) 138 139 140 struct sctp_nets; 141 struct sctp_inpcb; 142 struct sctp_tcb; 143 struct sctphdr; 144 145 void* sctp_ctlinput(int, const struct sockaddr *, void *); 146 int sctp_ctloutput(int, struct socket *, struct sockopt *); 147 void sctp_input(struct mbuf *, int, int); 148 void sctp_drain(void); 149 void sctp_init(void); 150 int sctp_shutdown(struct socket *); 151 void sctp_notify(struct sctp_inpcb *, int, struct sctphdr *, 152 struct sockaddr *, struct sctp_tcb *, 153 struct sctp_nets *); 154 int sctp_rcvd(struct socket *, int, struct lwp *); 155 int sctp_send(struct socket *, struct mbuf *, struct sockaddr *, 156 struct mbuf *, struct lwp *); 157 158 #if defined(INET6) 159 void ip_2_ip6_hdr(struct ip6_hdr *, struct ip *); 160 #endif 161 162 int sctp_bindx(struct socket *, int, struct sockaddr_storage *, 163 int, int, struct lwp *); 164 int sctp_do_connect_x(struct socket *, struct sctp_connectx_addrs *, 165 struct lwp *, int); 166 167 /* can't use sctp_assoc_t here */ 168 int sctp_peeloff(struct socket *, struct socket *, int, vaddr_t, int *); 169 170 171 sctp_assoc_t sctp_getassocid(struct sockaddr *); 172 int sctp_sockaddr(struct socket *, struct sockaddr *); 173 int sctp_peeraddr(struct socket *, struct sockaddr *); 174 int sctp_listen(struct socket *, struct lwp *); 175 int sctp_accept(struct socket *, struct sockaddr *); 176 177 int sctp_sysctl(int *, u_int, void *, size_t *, void *, size_t); 178 179 #endif /* _KERNEL */ 180 181 #endif /* !_NETINET_SCTP_VAR_H_ */ 182
Indexes created Sat Sep 20 22:09:52 GMT 2025