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* Rewrote tcp.h header - however, I think it should only include the TCP options

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that can be set via setsockopt().
* For now, the struct tcphdr and its definitions are also part of the header.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@19383 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Axel Dörfler
2006-11-28 23:02:30 +00:00
parent 49961c1489
commit 0ce94a8f47
1 changed files with 64 additions and 77 deletions
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headers/posix/netinet/tcp.h
+64 -77
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@@ -1,97 +1,84 @@
/* /*
* Copyright (c) 1982, 1986, 1993 * Copyright 2006, Haiku Inc. All Rights Reserved.
*The Regents of the University of California. All rights reserved. * Distributed under the terms of the MIT License.
* */
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
*
* This product includes software developed by the University of
* California, Berkeley and its contributors.
*
* 4. 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.
*
*/
#ifndef NETINET_TCP_H #ifndef NETINET_TCP_H
#define NETINET_TCP_H #define NETINET_TCP_H
#include <endian.h>
#include <stdint.h> #include <stdint.h>
typedef uint32_t tcp_seq;
// TODO: if tcpdump is the only potential user of the part commented out, remove it
#if 0
struct tcphdr { struct tcphdr {
uint16_t th_sport; /* src port */ uint16_t th_sport; /* source port */
uint16_t th_dport; /* dest. port */ uint16_t th_dport; /* destination port */
tcp_seq th_seq; /* seq number */ uint32_t th_seq;
tcp_seq th_ack; /* ack number */ uint32_t th_ack;
#if B_HOST_IS_BENDIAN #if BIG_ENDIAN
uint8_t th_off:4, uint8_t th_off : 4; /* data offset */
th_x2:4; uint8_t th_x2 : 4; /* unused */
#else #else
uint8_t th_x2:4, /* unused */ uint8_t th_x2 : 4;
th_off:4; /* data offset */ uint8_t th_off : 4;
#endif #endif
uint8_t th_flags; /* ACK, FIN, PUSH, RST, SYN, URG */ uint8_t th_flags;
uint16_t th_win; /* advertised window */ uint16_t th_win;
uint16_t th_sum; /* checksum */ uint16_t th_sum;
uint16_t th_urp; /* urgent offset */ uint16_t th_urp; /* end of urgent data offset */
} _PACKED; } _PACKED;
#define TH_FIN 0x01 #define TH_FIN 0x01
#define TH_SYN 0x02 #define TH_SYN 0x02
#define TH_RST 0x04 #define TH_RST 0x04
#define TH_PUSH 0x08 #define TH_PUSH 0x08
#define TH_ACK 0x10 #define TH_ACK 0x10
#define TH_URG 0x20 #define TH_URG 0x20
#define TH_ECE 0x40
#define TH_CWR 0x80
#define TCPOPT_EOL 0 #define TCPOPT_EOL 0
#define TCPOPT_NOP 1 #define TCPOPT_NOP 1
#define TCPOPT_MAXSEG 2 #define TCPOPT_MAXSEG 2
#define TCPOPT_WINDOW 3 #define TCPOPT_WINDOW 3
#define TCPOPT_SACK_PERMITTED 4 /* Experimental */ #define TCPOPT_SACK_PERMITTED 4
#define TCPOPT_SACK 5 /* Experimental */ #define TCPOPT_SACK 5
#define TCPOPT_TIMESTAMP 8 #define TCPOPT_TIMESTAMP 8
#define TCPOPT_SIGNATURE 19 #define TCPOPT_SIGNATURE 19
#define MAX_TCPOPTLEN 40 /* Absolute maximum TCP options len */ #define MAX_TCPOPTLEN 40
/* absolute maximum TCP options length */
#define TCPOLEN_MAXSEG 4 #define TCPOLEN_MAXSEG 4
#define TCPOLEN_WINDOW 3 #define TCPOLEN_WINDOW 3
#define TCPOLEN_SACK 8 /* 2*sizeof(tcp_seq) */ #define TCPOLEN_SACK 8
#define TCPOLEN_SACK_PERMITTED 2 #define TCPOLEN_SACK_PERMITTED 2
#define TCPOLEN_TIMESTAMP 10 #define TCPOLEN_TIMESTAMP 10
#define TCPOLEN_TSTAMP_APPA (TCPOLEN_TIMESTAMP+2) /* appendix A */ #define TCPOLEN_TSTAMP_APPA (TCPOLEN_TIMESTAMP + 2)
#define TCPOLEN_SIGNATURE 18 /* see RFC 1323, appendix A */
#define TCPOLEN_SIGNATURE 18
#define TCPOPT_TSTAMP_HDR \ #define TCPOPT_TSTAMP_HDR \
(TCPOPT_NOP<<24|TCPOPT_NOP<<16|TCPOPT_TIMESTAMP<<8|TCPOLEN_TIMESTAMP) (TCPOPT_NOP << 24 | TCPOPT_NOP << 16 | TCPOPT_TIMESTAMP << 8 | TCPOLEN_TIMESTAMP)
#define TCP_MSS 512 #define TCP_MSS 536
#define TCP_MAXWIN 65535 #define TCP_MAXWIN 65535
#define TCP_MAX_WINSHIFT 14 #define TCP_MAX_WINSHIFT 14
#endif
#endif /* NETINET_TCP_H */ /* options that can be set using setsockopt() and level IPPROTO_TCP */
#define TCP_NODELAY 0x01
/* don't delay sending smaller packets */
#define TCP_MAXSEG 0x02
/* set maximum segment size */
#define TCP_NOPUSH 0x04
/* don't use TH_PUSH */
#define TCP_NOOPT 0x08
/* don't use any TCP options */
#endif /* NETINET_TCP_H */