1#ifndef _NETINET_IP6_H 2#define _NETINET_IP6_H 3 4#ifdef __cplusplus 5extern "C" { 6#endif 7 8#include <stdint.h> 9#include <netinet/in.h> 10#include <endian.h> 11 12struct ip6_hdr { 13 union { 14 struct ip6_hdrctl { 15 uint32_t ip6_un1_flow; 16 uint16_t ip6_un1_plen; 17 uint8_t ip6_un1_nxt; 18 uint8_t ip6_un1_hlim; 19 } ip6_un1; 20 uint8_t ip6_un2_vfc; 21 } ip6_ctlun; 22 struct in6_addr ip6_src; 23 struct in6_addr ip6_dst; 24}; 25 26#define ip6_vfc ip6_ctlun.ip6_un2_vfc 27#define ip6_flow ip6_ctlun.ip6_un1.ip6_un1_flow 28#define ip6_plen ip6_ctlun.ip6_un1.ip6_un1_plen 29#define ip6_nxt ip6_ctlun.ip6_un1.ip6_un1_nxt 30#define ip6_hlim ip6_ctlun.ip6_un1.ip6_un1_hlim 31#define ip6_hops ip6_ctlun.ip6_un1.ip6_un1_hlim 32 33struct ip6_ext { 34 uint8_t ip6e_nxt; 35 uint8_t ip6e_len; 36}; 37 38struct ip6_hbh { 39 uint8_t ip6h_nxt; 40 uint8_t ip6h_len; 41}; 42 43struct ip6_dest { 44 uint8_t ip6d_nxt; 45 uint8_t ip6d_len; 46}; 47 48struct ip6_rthdr { 49 uint8_t ip6r_nxt; 50 uint8_t ip6r_len; 51 uint8_t ip6r_type; 52 uint8_t ip6r_segleft; 53}; 54 55struct ip6_rthdr0 { 56 uint8_t ip6r0_nxt; 57 uint8_t ip6r0_len; 58 uint8_t ip6r0_type; 59 uint8_t ip6r0_segleft; 60 uint8_t ip6r0_reserved; 61 uint8_t ip6r0_slmap[3]; 62 struct in6_addr ip6r0_addr[]; 63}; 64 65struct ip6_frag { 66 uint8_t ip6f_nxt; 67 uint8_t ip6f_reserved; 68 uint16_t ip6f_offlg; 69 uint32_t ip6f_ident; 70}; 71 72#if __BYTE_ORDER == __BIG_ENDIAN 73#define IP6F_OFF_MASK 0xfff8 74#define IP6F_RESERVED_MASK 0x0006 75#define IP6F_MORE_FRAG 0x0001 76#else 77#define IP6F_OFF_MASK 0xf8ff 78#define IP6F_RESERVED_MASK 0x0600 79#define IP6F_MORE_FRAG 0x0100 80#endif 81 82struct ip6_opt { 83 uint8_t ip6o_type; 84 uint8_t ip6o_len; 85}; 86 87#define IP6OPT_TYPE(o) ((o) & 0xc0) 88#define IP6OPT_TYPE_SKIP 0x00 89#define IP6OPT_TYPE_DISCARD 0x40 90#define IP6OPT_TYPE_FORCEICMP 0x80 91#define IP6OPT_TYPE_ICMP 0xc0 92#define IP6OPT_TYPE_MUTABLE 0x20 93 94#define IP6OPT_PAD1 0 95#define IP6OPT_PADN 1 96 97#define IP6OPT_JUMBO 0xc2 98#define IP6OPT_NSAP_ADDR 0xc3 99#define IP6OPT_TUNNEL_LIMIT 0x04 100#define IP6OPT_ROUTER_ALERT 0x05 101 102struct ip6_opt_jumbo { 103 uint8_t ip6oj_type; 104 uint8_t ip6oj_len; 105 uint8_t ip6oj_jumbo_len[4]; 106}; 107#define IP6OPT_JUMBO_LEN 6 108 109struct ip6_opt_nsap { 110 uint8_t ip6on_type; 111 uint8_t ip6on_len; 112 uint8_t ip6on_src_nsap_len; 113 uint8_t ip6on_dst_nsap_len; 114}; 115 116struct ip6_opt_tunnel { 117 uint8_t ip6ot_type; 118 uint8_t ip6ot_len; 119 uint8_t ip6ot_encap_limit; 120}; 121 122struct ip6_opt_router { 123 uint8_t ip6or_type; 124 uint8_t ip6or_len; 125 uint8_t ip6or_value[2]; 126}; 127 128#if __BYTE_ORDER == __BIG_ENDIAN 129#define IP6_ALERT_MLD 0x0000 130#define IP6_ALERT_RSVP 0x0001 131#define IP6_ALERT_AN 0x0002 132#else 133#define IP6_ALERT_MLD 0x0000 134#define IP6_ALERT_RSVP 0x0100 135#define IP6_ALERT_AN 0x0200 136#endif 137 138#ifdef __cplusplus 139} 140#endif 141 142#endif 143