[279] | 1 | #ifndef _NETINET_IP6_H
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| 2 | #define _NETINET_IP6_H
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| 3 |
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| 4 | #ifdef __cplusplus
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| 5 | extern "C" {
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| 6 | #endif
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| 7 |
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| 8 | #include <stdint.h>
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| 9 | #include <netinet/in.h>
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| 10 | #include <endian.h>
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| 11 |
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| 12 | struct ip6_hdr {
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| 13 | union {
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| 14 | struct ip6_hdrctl {
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| 15 | uint32_t ip6_un1_flow;
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| 16 | uint16_t ip6_un1_plen;
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| 17 | uint8_t ip6_un1_nxt;
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| 18 | uint8_t ip6_un1_hlim;
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| 19 | } ip6_un1;
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| 20 | uint8_t ip6_un2_vfc;
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| 21 | } ip6_ctlun;
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| 22 | struct in6_addr ip6_src;
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| 23 | struct in6_addr ip6_dst;
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| 24 | };
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| 25 |
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| 26 | #define ip6_vfc ip6_ctlun.ip6_un2_vfc
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| 27 | #define ip6_flow ip6_ctlun.ip6_un1.ip6_un1_flow
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| 28 | #define ip6_plen ip6_ctlun.ip6_un1.ip6_un1_plen
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| 29 | #define ip6_nxt ip6_ctlun.ip6_un1.ip6_un1_nxt
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| 30 | #define ip6_hlim ip6_ctlun.ip6_un1.ip6_un1_hlim
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| 31 | #define ip6_hops ip6_ctlun.ip6_un1.ip6_un1_hlim
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| 32 |
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| 33 | struct ip6_ext {
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| 34 | uint8_t ip6e_nxt;
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| 35 | uint8_t ip6e_len;
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| 36 | };
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| 37 |
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| 38 | struct ip6_hbh {
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| 39 | uint8_t ip6h_nxt;
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| 40 | uint8_t ip6h_len;
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| 41 | };
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| 42 |
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| 43 | struct ip6_dest {
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| 44 | uint8_t ip6d_nxt;
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| 45 | uint8_t ip6d_len;
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| 46 | };
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| 47 |
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| 48 | struct ip6_rthdr {
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| 49 | uint8_t ip6r_nxt;
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| 50 | uint8_t ip6r_len;
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| 51 | uint8_t ip6r_type;
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| 52 | uint8_t ip6r_segleft;
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| 53 | };
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| 54 |
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| 55 | struct ip6_rthdr0 {
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| 56 | uint8_t ip6r0_nxt;
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| 57 | uint8_t ip6r0_len;
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| 58 | uint8_t ip6r0_type;
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| 59 | uint8_t ip6r0_segleft;
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| 60 | uint8_t ip6r0_reserved;
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| 61 | uint8_t ip6r0_slmap[3];
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| 62 | struct in6_addr ip6r0_addr[];
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| 63 | };
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| 64 |
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| 65 | struct ip6_frag {
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| 66 | uint8_t ip6f_nxt;
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| 67 | uint8_t ip6f_reserved;
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| 68 | uint16_t ip6f_offlg;
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| 69 | uint32_t ip6f_ident;
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| 70 | };
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| 71 |
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| 72 | #if __BYTE_ORDER == __BIG_ENDIAN
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| 73 | #define IP6F_OFF_MASK 0xfff8
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| 74 | #define IP6F_RESERVED_MASK 0x0006
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| 75 | #define IP6F_MORE_FRAG 0x0001
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| 76 | #else
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| 77 | #define IP6F_OFF_MASK 0xf8ff
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| 78 | #define IP6F_RESERVED_MASK 0x0600
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| 79 | #define IP6F_MORE_FRAG 0x0100
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| 80 | #endif
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| 81 |
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| 82 | struct ip6_opt {
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| 83 | uint8_t ip6o_type;
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| 84 | uint8_t ip6o_len;
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| 85 | };
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| 86 |
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| 87 | #define IP6OPT_TYPE(o) ((o) & 0xc0)
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| 88 | #define IP6OPT_TYPE_SKIP 0x00
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| 89 | #define IP6OPT_TYPE_DISCARD 0x40
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| 90 | #define IP6OPT_TYPE_FORCEICMP 0x80
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| 91 | #define IP6OPT_TYPE_ICMP 0xc0
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| 92 | #define IP6OPT_TYPE_MUTABLE 0x20
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| 93 |
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| 94 | #define IP6OPT_PAD1 0
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| 95 | #define IP6OPT_PADN 1
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| 96 |
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| 97 | #define IP6OPT_JUMBO 0xc2
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| 98 | #define IP6OPT_NSAP_ADDR 0xc3
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| 99 | #define IP6OPT_TUNNEL_LIMIT 0x04
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| 100 | #define IP6OPT_ROUTER_ALERT 0x05
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| 101 |
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| 102 | struct ip6_opt_jumbo {
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| 103 | uint8_t ip6oj_type;
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| 104 | uint8_t ip6oj_len;
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| 105 | uint8_t ip6oj_jumbo_len[4];
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| 106 | };
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| 107 | #define IP6OPT_JUMBO_LEN 6
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| 108 |
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| 109 | struct ip6_opt_nsap {
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| 110 | uint8_t ip6on_type;
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| 111 | uint8_t ip6on_len;
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| 112 | uint8_t ip6on_src_nsap_len;
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| 113 | uint8_t ip6on_dst_nsap_len;
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| 114 | };
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| 115 |
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| 116 | struct ip6_opt_tunnel {
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| 117 | uint8_t ip6ot_type;
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| 118 | uint8_t ip6ot_len;
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| 119 | uint8_t ip6ot_encap_limit;
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| 120 | };
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| 121 |
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| 122 | struct ip6_opt_router {
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| 123 | uint8_t ip6or_type;
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| 124 | uint8_t ip6or_len;
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| 125 | uint8_t ip6or_value[2];
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| 126 | };
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| 127 |
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| 128 | #if __BYTE_ORDER == __BIG_ENDIAN
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| 129 | #define IP6_ALERT_MLD 0x0000
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| 130 | #define IP6_ALERT_RSVP 0x0001
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| 131 | #define IP6_ALERT_AN 0x0002
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| 132 | #else
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| 133 | #define IP6_ALERT_MLD 0x0000
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| 134 | #define IP6_ALERT_RSVP 0x0100
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| 135 | #define IP6_ALERT_AN 0x0200
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| 136 | #endif
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| 137 |
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| 138 | #ifdef __cplusplus
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| 139 | }
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| 140 | #endif
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| 141 |
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| 142 | #endif
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