Check for ethernet/ipv4/ipv6 related structures.

[tinc] / lib / ipv6.h

diff --git a/lib/ipv6.h b/lib/ipv6.h
index 1e4b873..d8cb4cf 100644 (file)
--- a/lib/ipv6.h
+++ b/lib/ipv6.h
@@ -17,19 +17,12 @@
     along with this program; if not, write to the Free Software
     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 
-    $Id: ipv6.h,v 1.1.2.1 2003/07/07 11:13:31 guus Exp $
+    $Id: ipv6.h,v 1.1.2.5 2003/07/18 13:42:35 guus Exp $
 */
 
 #ifndef __TINC_IPV6_H__
 #define __TINC_IPV6_H__
 
-#include "config.h"
-
-#include <netinet/in.h>
-#ifdef HAVE_INTTYPES_H
-#include <inttypes.h>
-#endif
-
 #ifndef AF_INET6
 #define AF_INET6 10
 #endif
@@ -60,7 +53,14 @@ struct sockaddr_in6 {
 };
 #endif
 
-#ifndef HAVE_NETINET_IP6_H
+#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 {
@@ -74,7 +74,15 @@ struct ip6_hdr {
        struct in6_addr ip6_src;
        struct in6_addr ip6_dst;
 };
+#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;
@@ -90,14 +98,18 @@ struct icmp6_hdr {
 #define ICMP6_DST_UNREACH_ADDR 3
 #define ND_NEIGHBOR_SOLICIT 135
 #define ND_NEIGHBOR_ADVERT 136
+#endif
 
+#ifndef HAVE_STRUCT_ND_NEIGHBOR_SOLICIT
 struct nd_neighbor_solicit {
        struct icmp6_hdr nd_ns_hdr;
        struct in6_addr nd_ns_target;
 };
 #define ND_OPT_SOURCE_LINKADDR 1
 #define ND_OPT_TARGET_LINKADDR 2
+#endif
 
+#ifndef HAVE_STRUCT_ND_OPT_HDR
 struct nd_opt_hdr {
        uint8_t nd_opt_type;
        uint8_t nd_opt_len;