mirror of git://git.musl-libc.org/musl
143 lines
2.6 KiB
C
143 lines
2.6 KiB
C
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#ifndef _NETINET_IP6_H
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#define _NETINET_IP6_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <stdint.h>
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#include <netinet/in.h>
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#include <endian.h>
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struct ip6_hdr {
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union {
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struct ip6_hdrctl {
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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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};
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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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uint8_t ip6e_nxt;
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uint8_t ip6e_len;
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};
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struct ip6_hbh {
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uint8_t ip6h_nxt;
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uint8_t ip6h_len;
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};
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struct ip6_dest {
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uint8_t ip6d_nxt;
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uint8_t ip6d_len;
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};
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struct ip6_rthdr {
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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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};
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struct ip6_rthdr0 {
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uint8_t ip6r0_nxt;
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uint8_t ip6r0_len;
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uint8_t ip6r0_type;
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uint8_t ip6r0_segleft;
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uint8_t ip6r0_reserved;
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uint8_t ip6r0_slmap[3];
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struct in6_addr ip6r0_addr[];
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};
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struct ip6_frag {
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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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};
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#if __BYTE_ORDER == __BIG_ENDIAN
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#define IP6F_OFF_MASK 0xfff8
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#define IP6F_RESERVED_MASK 0x0006
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#define IP6F_MORE_FRAG 0x0001
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#else
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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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#endif
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struct ip6_opt {
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uint8_t ip6o_type;
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uint8_t ip6o_len;
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};
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#define IP6OPT_TYPE(o) ((o) & 0xc0)
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#define IP6OPT_TYPE_SKIP 0x00
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#define IP6OPT_TYPE_DISCARD 0x40
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#define IP6OPT_TYPE_FORCEICMP 0x80
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#define IP6OPT_TYPE_ICMP 0xc0
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#define IP6OPT_TYPE_MUTABLE 0x20
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#define IP6OPT_PAD1 0
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#define IP6OPT_PADN 1
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#define IP6OPT_JUMBO 0xc2
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#define IP6OPT_NSAP_ADDR 0xc3
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#define IP6OPT_TUNNEL_LIMIT 0x04
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#define IP6OPT_ROUTER_ALERT 0x05
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struct ip6_opt_jumbo {
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uint8_t ip6oj_type;
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uint8_t ip6oj_len;
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uint8_t ip6oj_jumbo_len[4];
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};
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#define IP6OPT_JUMBO_LEN 6
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struct ip6_opt_nsap {
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uint8_t ip6on_type;
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uint8_t ip6on_len;
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uint8_t ip6on_src_nsap_len;
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uint8_t ip6on_dst_nsap_len;
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};
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struct ip6_opt_tunnel {
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uint8_t ip6ot_type;
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uint8_t ip6ot_len;
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uint8_t ip6ot_encap_limit;
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};
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struct ip6_opt_router {
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uint8_t ip6or_type;
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uint8_t ip6or_len;
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uint8_t ip6or_value[2];
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};
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#if __BYTE_ORDER == __BIG_ENDIAN
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#define IP6_ALERT_MLD 0x0000
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#define IP6_ALERT_RSVP 0x0001
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#define IP6_ALERT_AN 0x0002
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#else
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#define IP6_ALERT_MLD 0x0000
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#define IP6_ALERT_RSVP 0x0100
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#define IP6_ALERT_AN 0x0200
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif
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