loop-uh
5e1409131e
Cross compiled by llvm-mingw (nfq2/winnative/build.sh). Upstream sources are not changed: a force-included header emulates the cygwin environment, compat.c replaces the cygwin runtime (utf-8 file api, path conversion, command line and @file parsing identical to cygwin, signals, wordexp). Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
58 lines
1.2 KiB
C
58 lines
1.2 KiB
C
// winnative: BSD style ipv6 headers
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#pragma once
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#include <netinet/in.h>
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struct ip6_hdr
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{
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union
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{
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struct ip6_hdrctl
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{
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uint32_t ip6_un1_flow;
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uint16_t ip6_un1_plen;
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uint8_t ip6_un1_nxt;
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uint8_t ip6_un1_hlim;
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} ip6_un1;
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uint8_t ip6_un2_vfc;
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} ip6_ctlun;
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struct in6_addr ip6_src;
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struct in6_addr ip6_dst;
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} __attribute__((packed));
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#define ip6_vfc ip6_ctlun.ip6_un2_vfc
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#define ip6_flow ip6_ctlun.ip6_un1.ip6_un1_flow
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#define ip6_plen ip6_ctlun.ip6_un1.ip6_un1_plen
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#define ip6_nxt ip6_ctlun.ip6_un1.ip6_un1_nxt
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#define ip6_hlim ip6_ctlun.ip6_un1.ip6_un1_hlim
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#define ip6_hops ip6_ctlun.ip6_un1.ip6_un1_hlim
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struct ip6_ext
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{
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uint8_t ip6e_nxt;
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uint8_t ip6e_len;
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} __attribute__((packed));
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struct ip6_hbh
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{
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uint8_t ip6h_nxt;
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uint8_t ip6h_len;
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} __attribute__((packed));
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struct ip6_dest
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{
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uint8_t ip6d_nxt;
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uint8_t ip6d_len;
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} __attribute__((packed));
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struct ip6_rthdr
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{
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uint8_t ip6r_nxt;
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uint8_t ip6r_len;
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uint8_t ip6r_type;
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uint8_t ip6r_segleft;
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} __attribute__((packed));
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struct ip6_frag
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{
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uint8_t ip6f_nxt;
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uint8_t ip6f_reserved;
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uint16_t ip6f_offlg;
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uint32_t ip6f_ident;
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} __attribute__((packed));
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// network byte order masks, little endian host
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#define IP6F_OFF_MASK 0xf8ff
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#define IP6F_RESERVED_MASK 0x0600
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#define IP6F_MORE_FRAG 0x0100
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