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