. add sa_len to sockaddr, sin_len to sockaddr_in . rename SCM_CREDENTIALS to SCM_CREDS . retire PF_FILE (same as PF_UNIX) Change-Id: Id3ec63fe2556fc7ceb48de8ad4e80736df3ddfc7
133 lines
4.3 KiB
C
133 lines
4.3 KiB
C
/* $NetBSD: tcp.h,v 1.30 2012/01/07 20:20:22 christos Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1982, 1986, 1993
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* @(#)tcp.h 8.1 (Berkeley) 6/10/93
|
|
*/
|
|
|
|
#ifndef _NETINET_TCP_H_
|
|
#define _NETINET_TCP_H_
|
|
|
|
#include <sys/featuretest.h>
|
|
|
|
#if defined(_NETBSD_SOURCE)
|
|
#include <sys/types.h>
|
|
|
|
typedef uint32_t tcp_seq;
|
|
/*
|
|
* TCP header.
|
|
* Per RFC 793, September, 1981.
|
|
* Updated by RFC 3168, September, 2001.
|
|
*/
|
|
struct tcphdr {
|
|
uint16_t th_sport; /* source port */
|
|
uint16_t th_dport; /* destination port */
|
|
tcp_seq th_seq; /* sequence number */
|
|
tcp_seq th_ack; /* acknowledgement number */
|
|
#if BYTE_ORDER == LITTLE_ENDIAN
|
|
/*LINTED non-portable bitfields*/
|
|
uint8_t th_x2:4, /* (unused) */
|
|
th_off:4; /* data offset */
|
|
#endif
|
|
#if BYTE_ORDER == BIG_ENDIAN
|
|
/*LINTED non-portable bitfields*/
|
|
uint8_t th_off:4, /* data offset */
|
|
th_x2:4; /* (unused) */
|
|
#endif
|
|
uint8_t th_flags;
|
|
#define TH_FIN 0x01
|
|
#define TH_SYN 0x02
|
|
#define TH_RST 0x04
|
|
#define TH_PUSH 0x08
|
|
#define TH_ACK 0x10
|
|
#define TH_URG 0x20
|
|
#define TH_ECE 0x40
|
|
#define TH_CWR 0x80
|
|
uint16_t th_win; /* window */
|
|
uint16_t th_sum; /* checksum */
|
|
uint16_t th_urp; /* urgent pointer */
|
|
} __packed;
|
|
|
|
#define TCPOPT_EOL 0
|
|
#define TCPOPT_NOP 1
|
|
#define TCPOPT_MAXSEG 2
|
|
#define TCPOLEN_MAXSEG 4
|
|
#define TCPOPT_WINDOW 3
|
|
#define TCPOLEN_WINDOW 3
|
|
#define TCPOPT_SACK_PERMITTED 4 /* Experimental */
|
|
#define TCPOLEN_SACK_PERMITTED 2
|
|
#define TCPOPT_SACK 5 /* Experimental */
|
|
#define TCPOPT_TIMESTAMP 8
|
|
#define TCPOLEN_TIMESTAMP 10
|
|
#define TCPOLEN_TSTAMP_APPA (TCPOLEN_TIMESTAMP+2) /* appendix A */
|
|
|
|
#define TCPOPT_TSTAMP_HDR \
|
|
(TCPOPT_NOP<<24|TCPOPT_NOP<<16|TCPOPT_TIMESTAMP<<8|TCPOLEN_TIMESTAMP)
|
|
|
|
#define TCPOPT_SIGNATURE 19 /* Keyed MD5: RFC 2385 */
|
|
#define TCPOLEN_SIGNATURE 18
|
|
#define TCPOLEN_SIGLEN (TCPOLEN_SIGNATURE+2) /* padding */
|
|
|
|
#define MAX_TCPOPTLEN 40 /* max # bytes that go in options */
|
|
|
|
/*
|
|
* Default maximum segment size for TCP.
|
|
* This is defined by RFC 1112 Sec 4.2.2.6.
|
|
*/
|
|
#define TCP_MSS 536
|
|
|
|
#define TCP_MINMSS 216
|
|
|
|
#define TCP_MAXWIN 65535 /* largest value for (unscaled) window */
|
|
|
|
#define TCP_MAX_WINSHIFT 14 /* maximum window shift */
|
|
|
|
#define TCP_MAXBURST 4 /* maximum segments in a burst */
|
|
|
|
#endif /* _NETBSD_SOURCE */
|
|
|
|
/*
|
|
* User-settable options (used with setsockopt).
|
|
*/
|
|
#define TCP_NODELAY 1 /* don't delay send to coalesce packets */
|
|
#define TCP_MAXSEG 2 /* set maximum segment size */
|
|
#define TCP_KEEPIDLE 3
|
|
#ifdef notyet
|
|
#define TCP_NOPUSH 4 /* reserved for FreeBSD compat */
|
|
#endif
|
|
#define TCP_KEEPINTVL 5
|
|
#define TCP_KEEPCNT 6
|
|
#define TCP_KEEPINIT 7
|
|
#ifdef notyet
|
|
#define TCP_NOOPT 8 /* reserved for FreeBSD compat */
|
|
#endif
|
|
#define TCP_MD5SIG 0x10 /* use MD5 digests (RFC2385) */
|
|
#define TCP_CONGCTL 0x20 /* selected congestion control */
|
|
|
|
#endif /* !_NETINET_TCP_H_ */
|