From b7b1bfce0bb68bd8f6e62a28295922785cc63781 Mon Sep 17 00:00:00 2001 From: Hannes Frederic Sowa Date: Sun, 23 Jun 2013 18:39:01 +0200 Subject: ipv6: split duplicate address detection and router solicitation timer This patch splits the timers for duplicate address detection and router solicitations apart. The router solicitations timer goes into inet6_dev and the dad timer stays in inet6_ifaddr. The reason behind this patch is to reduce the number of unneeded router solicitations send out by the host if additional link-local addresses are created. Currently we send out RS for every link-local address on an interface. If the RS timer fires we pick a source address with ipv6_get_lladdr. This change could hurt people adding additional link-local addresses and specifying these addresses in the radvd clients section because we no longer guarantee that we use every ll address as source address in router solicitations. Cc: Flavio Leitner Cc: Hideaki YOSHIFUJI Cc: David Stevens Signed-off-by: Hannes Frederic Sowa Reviewed-by: Flavio Leitner Signed-off-by: David S. Miller --- include/net/if_inet6.h | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) (limited to 'include/net/if_inet6.h') diff --git a/include/net/if_inet6.h b/include/net/if_inet6.h index e07feb4..e4c5a2d 100644 --- a/include/net/if_inet6.h +++ b/include/net/if_inet6.h @@ -50,7 +50,7 @@ struct inet6_ifaddr { int state; - __u8 probes; + __u8 dad_probes; __u8 flags; __u16 scope; @@ -58,7 +58,7 @@ struct inet6_ifaddr { unsigned long cstamp; /* created timestamp */ unsigned long tstamp; /* updated timestamp */ - struct timer_list timer; + struct timer_list dad_timer; struct inet6_dev *idev; struct rt6_info *rt; @@ -195,6 +195,10 @@ struct inet6_dev { struct neigh_parms *nd_parms; struct ipv6_devconf cnf; struct ipv6_devstat stats; + + struct timer_list rs_timer; + __u8 rs_probes; + unsigned long tstamp; /* ipv6InterfaceTable update timestamp */ struct rcu_head rcu; }; -- cgit v1.1