Modernize the build system.

[tinc] / src / ipv6.h

diff --git a/src/ipv6.h b/src/ipv6.h
new file mode 100644 (file)
index 0000000..6a4466f
--- /dev/null
+++ b/src/ipv6.h
@@ -0,0 +1,130 @@
+/*
+    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__ */