From: osprey67 <osprey67@yahoo.com>
To: netdev@vger.kernel.org
Subject: [PATCH 02/05] ipv6: RFC4214 Support (2)
Date: Thu, 08 Nov 2007 12:41:39 -0800 [thread overview]
Message-ID: <47337483.3080309@yahoo.com> (raw)
From: Fred L. Templin <osprey67@yahoo.com>
This is experimental support for the Intra-Site Automatic
Tunnel Addressing Protocol (ISATAP) per RFC4214. It uses
the SIT module, and is configured using the unmodified
"ip" utility with device names beginning with: "isatap".
The following diffs are specific to the Linux 2.6.24-rc2
kernel distribution.
Signed-off-by: Fred L. Templin <osprey67@yahoo.com>
---
--- linux-2.6.24-rc2/include/net/addrconf.h.orig 2007-11-08 12:06:17.000000000 -0800
+++ linux-2.6.24-rc2/include/net/addrconf.h 2007-11-08 08:27:24.000000000 -0800
@@ -241,6 +241,37 @@ static inline int ipv6_addr_is_ll_all_ro
addr->s6_addr32[3] == htonl(0x00000002));
}
+#if defined(CONFIG_IPV6_ISATAP)
+static inline int ipv6_isatap_eui64(u8 *eui, __be32 addr)
+{
+
+ /* RFC3330 Special-Use IPv4 Addresses */
+ eui[0] = (((addr & htonl(0xFF000000)) == htonl(0x00000000)) ||
+ ((addr & htonl(0xFF000000)) == htonl(0x0A000000)) ||
+ ((addr & htonl(0xFF000000)) == htonl(0x0D000000)) ||
+ ((addr & htonl(0xFF000000)) == htonl(0x18000000)) ||
+ ((addr & htonl(0xFF000000)) == htonl(0x7F000000)) ||
+ ((addr & htonl(0xFFFF0000)) == htonl(0xA9FE0000)) ||
+ ((addr & htonl(0xFFF00000)) == htonl(0xAC100000)) ||
+ ((addr & htonl(0xFFFFFF00)) == htonl(0xC0000200)) ||
+ ((addr & htonl(0xFFFFFF00)) == htonl(0xC0586300)) ||
+ ((addr & htonl(0xFFFF0000)) == htonl(0xC0A80000)) ||
+ ((addr & htonl(0xFFFE0000)) == htonl(0xC6120000)) ||
+ ((addr & htonl(0xF0000000)) == htonl(0xE0000000)) ||
+ ((addr & htonl(0xF0000000)) == htonl(0xF0000000))) ?
+ 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));
+}
+#endif
+
#ifdef CONFIG_PROC_FS
extern int if6_proc_init(void);
extern void if6_proc_exit(void);
next reply other threads:[~2007-11-08 20:41 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-11-08 20:41 osprey67 [this message]
2007-11-08 23:29 ` [PATCH 02/05] ipv6: RFC4214 Support (2) YOSHIFUJI Hideaki / 吉藤英明
2007-11-09 16:30 ` osprey67
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