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[PATCH] IPv6: Fix Prefix Length of Link-local Addresses

To: linux-kernel@xxxxxxxxxxxxxxx, netdev@xxxxxxxxxxx
Subject: [PATCH] IPv6: Fix Prefix Length of Link-local Addresses
From: YOSHIFUJI Hideaki / 吉藤英明 <yoshfuji@xxxxxxxxxxxxxx>
Date: Tue, 08 Oct 2002 00:05:59 +0900 (JST)
Cc: usagi@xxxxxxxxxxxxxx
Organization: USAGI Project
Sender: netdev-bounce@xxxxxxxxxxx
Hi,

Prefix length for link-local address should be 64, not 10.
This patch fixes prefix length of link-local address.

Following patch is against 2.4.19.

Thanks in advance.

-------------------------------------------------------------------
Patch-Name: Fix Prefix Length of Link-local Addresses
Patch-Id: FIX_2_4_19_LINKLOCAL_PREFIXLEN-20020928
Patch-Author: YOSHIFUJI Hideaki / USAGI Project <yoshfuji@xxxxxxxxxxxxxx>
Credit: YOSHIFUJI Hideaki / USAGI Project <yoshfuji@xxxxxxxxxxxxxx>
-------------------------------------------------------------------
Index: net/ipv6/addrconf.c
===================================================================
RCS file: /cvsroot/usagi/usagi-backport/linux24/net/ipv6/addrconf.c,v
retrieving revision 1.1.1.1
retrieving revision 1.1.1.1.20.1
diff -u -r1.1.1.1 -r1.1.1.1.20.1
--- net/ipv6/addrconf.c 2002/08/20 09:47:02     1.1.1.1
+++ net/ipv6/addrconf.c 2002/09/27 17:17:06     1.1.1.1.20.1
@@ -783,7 +783,7 @@
        struct in6_addr addr;
 
        ipv6_addr_set(&addr,  __constant_htonl(0xFE800000), 0, 0, 0);
-       addrconf_prefix_route(&addr, 10, dev, 0, RTF_ADDRCONF);
+       addrconf_prefix_route(&addr, 64, dev, 0, RTF_ADDRCONF);
 }
 
 static struct inet6_dev *addrconf_add_dev(struct net_device *dev)
@@ -1158,7 +1158,7 @@
                                        flag |= IFA_HOST;
                                }
                                if (idev->dev->flags&IFF_POINTOPOINT)
-                                       plen = 10;
+                                       plen = 64;
                                else
                                        plen = 96;
 
@@ -1208,7 +1208,7 @@
 {
        struct inet6_ifaddr * ifp;
 
-       ifp = ipv6_add_addr(idev, addr, 10, IFA_LINK, IFA_F_PERMANENT);
+       ifp = ipv6_add_addr(idev, addr, 64, IFA_LINK, IFA_F_PERMANENT);
        if (ifp) {
                addrconf_dad_start(ifp);
                in6_ifa_put(ifp);


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