/lib/ipv6.h
C Header | 130 lines | 100 code | 11 blank | 19 comment | 5 complexity | 2a89d95feea38f7d19bc9281f867c127 MD5 | raw file
Possible License(s): GPL-2.0, GPL-3.0
- /*
- ipv6.h -- missing IPv6 related definitions
- Copyright (C) 2005 Ivo Timmermans
- 2006-2012 Guus Sliepen <guus@tinc-vpn.org>
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
- You should have received a copy of the GNU General Public License along
- with this program; if not, write to the Free Software Foundation, Inc.,
- 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
- #ifndef __TINC_IPV6_H__
- #define __TINC_IPV6_H__
- #ifndef AF_INET6
- #define AF_INET6 10
- #endif
- #ifndef IPPROTO_ICMPV6
- #define IPPROTO_ICMPV6 58
- #endif
- #ifndef HAVE_STRUCT_IN6_ADDR
- struct in6_addr {
- union {
- uint8_t u6_addr8[16];
- uint16_t u6_addr16[8];
- uint32_t u6_addr32[4];
- } in6_u;
- } __attribute__ ((__packed__));
- #define s6_addr in6_u.u6_addr8
- #define s6_addr16 in6_u.u6_addr16
- #define s6_addr32 in6_u.u6_addr32
- #endif
- #ifndef HAVE_STRUCT_SOCKADDR_IN6
- struct sockaddr_in6 {
- uint16_t sin6_family;
- uint16_t sin6_port;
- uint32_t sin6_flowinfo;
- struct in6_addr sin6_addr;
- uint32_t sin6_scope_id;
- } __attribute__ ((__packed__));
- #endif
- #ifndef IN6_IS_ADDR_V4MAPPED
- #define IN6_IS_ADDR_V4MAPPED(a) \
- ((((__const uint32_t *) (a))[0] == 0) \
- && (((__const uint32_t *) (a))[1] == 0) \
- && (((__const uint32_t *) (a))[2] == htonl (0xffff)))
- #endif
- #ifndef HAVE_STRUCT_IP6_HDR
- struct ip6_hdr {
- union {
- struct ip6_hdrctl {
- uint32_t ip6_un1_flow;
- uint16_t ip6_un1_plen;
- uint8_t ip6_un1_nxt;
- uint8_t ip6_un1_hlim;
- } ip6_un1;
- uint8_t ip6_un2_vfc;
- } ip6_ctlun;
- struct in6_addr ip6_src;
- struct in6_addr ip6_dst;
- } __attribute__ ((__packed__));
- #define ip6_vfc ip6_ctlun.ip6_un2_vfc
- #define ip6_flow ip6_ctlun.ip6_un1.ip6_un1_flow
- #define ip6_plen ip6_ctlun.ip6_un1.ip6_un1_plen
- #define ip6_nxt ip6_ctlun.ip6_un1.ip6_un1_nxt
- #define ip6_hlim ip6_ctlun.ip6_un1.ip6_un1_hlim
- #define ip6_hops ip6_ctlun.ip6_un1.ip6_un1_hlim
- #endif
- #ifndef HAVE_STRUCT_ICMP6_HDR
- struct icmp6_hdr {
- uint8_t icmp6_type;
- uint8_t icmp6_code;
- uint16_t icmp6_cksum;
- union {
- uint32_t icmp6_un_data32[1];
- uint16_t icmp6_un_data16[2];
- uint8_t icmp6_un_data8[4];
- } icmp6_dataun;
- } __attribute__ ((__packed__));
- #define ICMP6_DST_UNREACH_NOROUTE 0
- #define ICMP6_DST_UNREACH 1
- #define ICMP6_PACKET_TOO_BIG 2
- #define ICMP6_TIME_EXCEEDED 3
- #define ICMP6_DST_UNREACH_ADMIN 1
- #define ICMP6_DST_UNREACH_ADDR 3
- #define ICMP6_TIME_EXCEED_TRANSIT 0
- #define ND_NEIGHBOR_SOLICIT 135
- #define ND_NEIGHBOR_ADVERT 136
- #define icmp6_data32 icmp6_dataun.icmp6_un_data32
- #define icmp6_data16 icmp6_dataun.icmp6_un_data16
- #define icmp6_data8 icmp6_dataun.icmp6_un_data8
- #define icmp6_mtu icmp6_data32[0]
- #endif
- #ifndef HAVE_STRUCT_ND_NEIGHBOR_SOLICIT
- struct nd_neighbor_solicit {
- struct icmp6_hdr nd_ns_hdr;
- struct in6_addr nd_ns_target;
- } __attribute__ ((__packed__));
- #define ND_OPT_SOURCE_LINKADDR 1
- #define ND_OPT_TARGET_LINKADDR 2
- #define nd_ns_type nd_ns_hdr.icmp6_type
- #define nd_ns_code nd_ns_hdr.icmp6_code
- #define nd_ns_cksum nd_ns_hdr.icmp6_cksum
- #define nd_ns_reserved nd_ns_hdr.icmp6_data32[0]
- #endif
- #ifndef HAVE_STRUCT_ND_OPT_HDR
- struct nd_opt_hdr {
- uint8_t nd_opt_type;
- uint8_t nd_opt_len;
- } __attribute__ ((__packed__));
- #endif
- #endif /* __TINC_IPV6_H__ */