2fe8fb192f
There is important information about booting non-ack images in docs/UPDATING. ack/aout-format images can't be built any more, and booting clang/ELF-format ones is a little different. Updating to the new boot monitor is recommended. Changes in this commit: . drop boot monitor -> allowing dropping ack support . facility to copy ELF boot files to /boot so that old boot monitor can still boot fairly easily, see UPDATING . no more ack-format libraries -> single-case libraries . some cleanup of OBJECT_FMT, COMPILER_TYPE, etc cases . drop several ack toolchain commands, but not all support commands (e.g. aal is gone but acksize is not yet). . a few libc files moved to netbsd libc dir . new /bin/date as minix date used code in libc/ . test compile fix . harmonize includes . /usr/lib is no longer special: without ack, /usr/lib plays no kind of special bootstrapping role any more and bootstrapping is done exclusively through packages, so releases depend even less on the state of the machine making them now. . rename nbsd_lib* to lib* . reduce mtree
50 lines
1.0 KiB
C
50 lines
1.0 KiB
C
/*
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server/ip/gen/tcp_hdr.h
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*/
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#ifndef __SERVER__IP__GEN__TCP_HDR_H__
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#define __SERVER__IP__GEN__TCP_HDR_H__
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typedef struct tcp_hdr
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{
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tcpport_t th_srcport;
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tcpport_t th_dstport;
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u32_t th_seq_nr;
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u32_t th_ack_nr;
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u8_t th_data_off;
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u8_t th_flags;
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u16_t th_window;
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u16_t th_chksum;
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u16_t th_urgptr;
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} tcp_hdr_t;
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#define TH_DO_MASK 0xf0
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#define TH_FLAGS_MASK 0x3f
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#define THF_FIN 0x1
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#define THF_SYN 0x2
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#define THF_RST 0x4
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#define THF_PSH 0x8
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#define THF_ACK 0x10
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#define THF_URG 0x20
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typedef struct tcp_hdropt
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{
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int tho_opt_siz;
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u8_t tho_data[TCP_MAX_HDR_SIZE-TCP_MIN_HDR_SIZE];
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} tcp_hdropt_t;
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#define TCP_OPT_EOL 0
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#define TCP_OPT_NOP 1
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#define TCP_OPT_MSS 2
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#define TCP_OPT_WSOPT 3 /* RFC-1323, window scale option */
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#define TCP_OPT_SACKOK 4 /* RFC-2018, SACK permitted */
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#define TCP_OPT_TS 8 /* RFC-1323, Timestamps option */
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#define TCP_OPT_CCNEW 12 /* RFC-1644, new connection count */
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#endif /* __SERVER__IP__GEN__TCP_HDR_H__ */
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/*
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* $PchId: tcp_hdr.h,v 1.4 2002/06/10 07:12:22 philip Exp $
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*/
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