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authorFred L. Templin <fred.l.templin@boeing.com>2007-11-29 22:11:40 +1100
committerDavid S. Miller <davem@davemloft.net>2008-01-28 14:55:09 -0800
commitc7dc89c0ac8e7c3796bff91becf58ccdbcaf9f18 (patch)
treee876ccadf29a90b7a211522aeccfd42255dab586 /include/net/addrconf.h
parentdf97c708d5e6eebdd9ded1fa588eae09acf53793 (diff)
downloadblackbird-op-linux-c7dc89c0ac8e7c3796bff91becf58ccdbcaf9f18.tar.gz
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[IPV6]: Add RFC4214 support
This patch includes support for the Intra-Site Automatic Tunnel Addressing Protocol (ISATAP) per RFC4214. It uses the SIT module, and is configured using extensions to the "iproute2" utility. The diffs are specific to the Linux 2.6.24-rc2 kernel distribution. This version includes the diff for ./include/linux/if.h which was missing in the v2.4 submission and is needed to make the patch compile. The patch has been installed, compiled and tested in a clean 2.6.24-rc2 kernel build area. Signed-off-by: Fred L. Templin <fred.l.templin@boeing.com> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/addrconf.h')
-rw-r--r--include/net/addrconf.h19
1 files changed, 19 insertions, 0 deletions
diff --git a/include/net/addrconf.h b/include/net/addrconf.h
index bccc2feb99da..c56827da0dee 100644
--- a/include/net/addrconf.h
+++ b/include/net/addrconf.h
@@ -17,6 +17,7 @@
#define IPV6_MAX_ADDRESSES 16
+#include <linux/in.h>
#include <linux/in6.h>
struct prefix_info {
@@ -249,6 +250,24 @@ static inline int ipv6_addr_is_ll_all_routers(const struct in6_addr *addr)
addr->s6_addr32[3] == htonl(0x00000002));
}
+static inline int ipv6_isatap_eui64(u8 *eui, __be32 addr)
+{
+ eui[0] = (ZERONET(addr) || PRIVATE_10(addr) || LOOPBACK(addr) ||
+ LINKLOCAL_169(addr) || PRIVATE_172(addr) || TEST_192(addr) ||
+ ANYCAST_6TO4(addr) || PRIVATE_192(addr) || TEST_198(addr) ||
+ MULTICAST(addr) || BADCLASS(addr)) ? 0x00 : 0x02;
+ eui[1] = 0;
+ eui[2] = 0x5E;
+ eui[3] = 0xFE;
+ memcpy (eui+4, &addr, 4);
+ return 0;
+}
+
+static inline int ipv6_addr_is_isatap(const struct in6_addr *addr)
+{
+ return ((addr->s6_addr32[2] | htonl(0x02000000)) == htonl(0x02005EFE));
+}
+
#ifdef CONFIG_PROC_FS
extern int if6_proc_init(void);
extern void if6_proc_exit(void);
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