| author | sl |
| Tue, 10 Jun 2014 14:32:02 +0200 | |
| changeset 1 | 260cb5ec6c19 |
| permissions | -rw-r--r-- |
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/* TCP.H |
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* |
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* Portions Copyright (c) 1997-1999 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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*/ |
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|
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/** @file |
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@publishedAll |
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@released |
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*/ |
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|
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/* |
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* Copyright (c) 1982, 1986 Regents of the University of California. |
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* All rights reserved. The Berkeley software License Agreement |
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* specifies the terms and conditions for redistribution. |
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*/ |
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|
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#ifndef _NETINET_TCP_H |
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#define _NETINET_TCP_H |
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|
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#ifdef __cplusplus |
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extern "C" {
|
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#endif |
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|
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typedef u_long tcp_seq; |
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/** |
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TCP header. |
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Per RFC 793, September, 1981. |
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@PublishedAll |
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*/ |
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struct tcphdr {
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u_short th_sport; /* source port */ |
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u_short th_dport; /* destination port */ |
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tcp_seq th_seq; /* sequence number */ |
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tcp_seq th_ack; /* acknowledgement number */ |
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#ifdef _BIT_FIELDS_LTOH |
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u_int th_x2:4, /* (unused) */ |
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th_off:4; /* data offset */ |
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#else |
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u_int th_off:4, /* data offset */ |
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th_x2:4; /* (unused) */ |
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#endif |
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u_char th_flags; |
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/** |
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@PublishedAll |
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*/ |
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#define TH_FIN 0x01 |
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/** |
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@PublishedAll |
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*/ |
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#define TH_SYN 0x02 |
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/** |
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@PublishedAll |
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*/ |
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#define TH_RST 0x04 |
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/** |
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@PublishedAll |
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*/ |
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#define TH_PUSH 0x08 |
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/** |
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@PublishedAll |
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*/ |
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#define TH_ACK 0x10 |
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/** |
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@PublishedAll |
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*/ |
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#define TH_URG 0x20 |
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u_short th_win; /* window */ |
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u_short th_sum; /* checksum */ |
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u_short th_urp; /* urgent pointer */ |
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}; |
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|
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#define TCPOPT_EOL 0 |
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#define TCPOPT_NOP 1 |
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#define TCPOPT_MAXSEG 2 |
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|
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/** |
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Default maximum segment size for TCP. |
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With an IP MSS of 576, this is 536, |
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but 512 is probably more convenient. |
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*/ |
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#ifdef lint |
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#define TCP_MSS 536 |
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#else |
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#define TCP_MSS MIN(512, IP_MSS - sizeof (struct tcpiphdr)) |
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#endif |
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|
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/** |
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User-settable options (used with setsockopt). |
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*/ |
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#define TCP_NODELAY 0x01 /* don't delay send to coalesce packets */ |
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#define TCP_MAXSEG 0x02 /* set maximum segment size */ |
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|
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#define TCP_NOTIFY_THRESHOLD 0x10 |
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#define TCP_ABORT_THRESHOLD 0x11 |
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#define TCP_CONN_NOTIFY_THRESHOLD 0x12 |
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#define TCP_CONN_ABORT_THRESHOLD 0x13 |
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|
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|
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#ifdef __cplusplus |
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} |
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#endif |
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|
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#endif /* _NETINET_TCP_H */ |