From mboxrd@z Thu Jan 1 00:00:00 1970 From: Brian Haley Subject: [PATCH] ipv6: Add IFA_F_DADFAILED flag Date: Fri, 04 Sep 2009 21:38:07 -0400 Message-ID: <4AA1C0FF.4030109@hp.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: "netdev@vger.kernel.org" , YOSHIFUJI Hideaki To: david Miller Return-path: Received: from g4t0014.houston.hp.com ([15.201.24.17]:40956 "EHLO g4t0014.houston.hp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934291AbZIEBiH (ORCPT ); Fri, 4 Sep 2009 21:38:07 -0400 Sender: netdev-owner@vger.kernel.org List-ID: [Note: if this is accepted I'll send out a patch for iproute, if you'd prefer to not use the last ifa_flag I'll send a much larger patch that does this differently :) ] Add IFA_F_DADFAILED flag to denote an IPv6 address that has failed Duplicate Address Detection, that way tools like /sbin/ip can be more informative. 3: eth0: mtu 1500 qlen 1000 inet6 2001:db8::1/64 scope global tentative dadfailed valid_lft forever preferred_lft forever Signed-off-by: Brian Haley --- diff --git a/include/linux/if_addr.h b/include/linux/if_addr.h index a60c821..fd97404 100644 --- a/include/linux/if_addr.h +++ b/include/linux/if_addr.h @@ -41,6 +41,7 @@ enum #define IFA_F_NODAD 0x02 #define IFA_F_OPTIMISTIC 0x04 +#define IFA_F_DADFAILED 0x08 #define IFA_F_HOMEADDRESS 0x10 #define IFA_F_DEPRECATED 0x20 #define IFA_F_TENTATIVE 0x40 diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index 43b3c9f..6532966 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -1376,7 +1376,7 @@ static void addrconf_dad_stop(struct inet6_ifaddr *ifp) if (ifp->flags&IFA_F_PERMANENT) { spin_lock_bh(&ifp->lock); addrconf_del_timer(ifp); - ifp->flags |= IFA_F_TENTATIVE; + ifp->flags |= IFA_F_DADFAILED; spin_unlock_bh(&ifp->lock); in6_ifa_put(ifp); #ifdef CONFIG_IPV6_PRIVACY