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Create a branch for network fixes.
svn path=/branches/aicom-network-fixes/; revision=34994
This commit is contained in:
Art Yerkes
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18148 changed files with 0 additions and 860488 deletions
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/*
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* INET An implementation of the TCP/IP protocol suite for the LINUX
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* operating system. INET is implemented using the BSD Socket
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* interface as the means of communication with the user level.
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*
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* Definitions for the TCP protocol.
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*
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* Version: @(#)tcp.h 1.0.2 04/28/93
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*
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* Author: Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*/
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#ifndef _LINUX_TCP_H
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#define _LINUX_TCP_H
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#include "linux.h"
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struct tcphdr {
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__u16 source;
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__u16 dest;
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__u32 seq;
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__u32 ack_seq;
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//#if defined(__LITTLE_ENDIAN_BITFIELD)
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__u16 res1:4,
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doff:4,
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fin:1,
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syn:1,
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rst:1,
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psh:1,
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ack:1,
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urg:1,
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ece:1,
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cwr:1;
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/*#elif defined(__BIG_ENDIAN_BITFIELD)
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__u16 doff:4,
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res1:4,
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cwr:1,
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ece:1,
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urg:1,
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ack:1,
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psh:1,
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rst:1,
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syn:1,
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fin:1;
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#else
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#error "Adjust your <asm/byteorder.h> defines"
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#endif */
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__u16 window;
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__u16 check;
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__u16 urg_ptr;
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};
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enum {
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TCP_ESTABLISHED = 1,
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TCP_SYN_SENT,
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TCP_SYN_RECV,
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TCP_FIN_WAIT1,
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TCP_FIN_WAIT2,
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TCP_TIME_WAIT,
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TCP_CLOSE,
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TCP_CLOSE_WAIT,
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TCP_LAST_ACK,
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TCP_LISTEN,
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TCP_CLOSING, /* now a valid state */
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TCP_MAX_STATES /* Leave at the end! */
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};
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#define TCP_STATE_MASK 0xF
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#define TCP_ACTION_FIN (1 << 7)
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enum {
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TCPF_ESTABLISHED = (1 << 1),
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TCPF_SYN_SENT = (1 << 2),
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TCPF_SYN_RECV = (1 << 3),
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TCPF_FIN_WAIT1 = (1 << 4),
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TCPF_FIN_WAIT2 = (1 << 5),
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TCPF_TIME_WAIT = (1 << 6),
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TCPF_CLOSE = (1 << 7),
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TCPF_CLOSE_WAIT = (1 << 8),
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TCPF_LAST_ACK = (1 << 9),
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TCPF_LISTEN = (1 << 10),
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TCPF_CLOSING = (1 << 11)
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};
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/*
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* The union cast uses a gcc extension to avoid aliasing problems
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* (union is compatible to any of its members)
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* This means this part of the code is -fstrict-aliasing safe now.
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*/
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union tcp_word_hdr {
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struct tcphdr hdr;
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__u32 words[5];
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};
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#define tcp_flag_word(tp) ( ((union tcp_word_hdr *)(tp))->words [3])
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enum {
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TCP_FLAG_CWR = 0x00800000, // __constant_htonl(0x00800000),
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TCP_FLAG_ECE = 0x00400000, //__constant_htonl(0x00400000),
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TCP_FLAG_URG = 0x00200000, //__constant_htonl(0x00200000),
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TCP_FLAG_ACK = 0x00100000, //__constant_htonl(0x00100000),
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TCP_FLAG_PSH = 0x00080000, //__constant_htonl(0x00080000),
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TCP_FLAG_RST = 0x00040000, //__constant_htonl(0x00040000),
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TCP_FLAG_SYN = 0x00020000, //__constant_htonl(0x00020000),
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TCP_FLAG_FIN = 0x00010000, //__constant_htonl(0x00010000),
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TCP_RESERVED_BITS = 0x0F000000, //__constant_htonl(0x0F000000),
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TCP_DATA_OFFSET = 0xF0000000, //__constant_htonl(0xF0000000)
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};
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/* TCP socket options */
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#define TCP_NODELAY 1 /* Turn off Nagle's algorithm. */
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#define TCP_MAXSEG 2 /* Limit MSS */
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#define TCP_CORK 3 /* Never send partially complete segments */
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#define TCP_KEEPIDLE 4 /* Start keeplives after this period */
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#define TCP_KEEPINTVL 5 /* Interval between keepalives */
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#define TCP_KEEPCNT 6 /* Number of keepalives before death */
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#define TCP_SYNCNT 7 /* Number of SYN retransmits */
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#define TCP_LINGER2 8 /* Life time of orphaned FIN-WAIT-2 state */
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#define TCP_DEFER_ACCEPT 9 /* Wake up listener only when data arrive */
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#define TCP_WINDOW_CLAMP 10 /* Bound advertised window */
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#define TCP_INFO 11 /* Information about this connection. */
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#define TCP_QUICKACK 12 /* Block/reenable quick acks */
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#define TCPI_OPT_TIMESTAMPS 1
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#define TCPI_OPT_SACK 2
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#define TCPI_OPT_WSCALE 4
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#define TCPI_OPT_ECN 8
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enum tcp_ca_state
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{
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TCP_CA_Open = 0,
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#define TCPF_CA_Open (1<<TCP_CA_Open)
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TCP_CA_Disorder = 1,
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#define TCPF_CA_Disorder (1<<TCP_CA_Disorder)
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TCP_CA_CWR = 2,
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#define TCPF_CA_CWR (1<<TCP_CA_CWR)
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TCP_CA_Recovery = 3,
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#define TCPF_CA_Recovery (1<<TCP_CA_Recovery)
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TCP_CA_Loss = 4
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#define TCPF_CA_Loss (1<<TCP_CA_Loss)
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};
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struct tcp_info
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{
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__u8 tcpi_state;
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__u8 tcpi_ca_state;
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__u8 tcpi_retransmits;
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__u8 tcpi_probes;
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__u8 tcpi_backoff;
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__u8 tcpi_options;
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__u8 tcpi_snd_wscale : 4, tcpi_rcv_wscale : 4;
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__u32 tcpi_rto;
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__u32 tcpi_ato;
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__u32 tcpi_snd_mss;
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__u32 tcpi_rcv_mss;
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__u32 tcpi_unacked;
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__u32 tcpi_sacked;
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__u32 tcpi_lost;
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__u32 tcpi_retrans;
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__u32 tcpi_fackets;
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/* Times. */
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__u32 tcpi_last_data_sent;
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__u32 tcpi_last_ack_sent; /* Not remembered, sorry. */
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__u32 tcpi_last_data_recv;
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__u32 tcpi_last_ack_recv;
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/* Metrics. */
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__u32 tcpi_pmtu;
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__u32 tcpi_rcv_ssthresh;
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__u32 tcpi_rtt;
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__u32 tcpi_rttvar;
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__u32 tcpi_snd_ssthresh;
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__u32 tcpi_snd_cwnd;
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__u32 tcpi_advmss;
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__u32 tcpi_reordering;
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};
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#endif /* _LINUX_TCP_H */
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