From 5cb04436eef62aa8f5c482f8ec8deba391dea465 Mon Sep 17 00:00:00 2001 From: Hannes Frederic Sowa Date: Tue, 6 Nov 2012 16:46:20 +0000 Subject: ipv6: add knob to send unsolicited ND on link-layer address change This patch introduces a new knob ndisc_notify. If enabled, the kernel will transmit an unsolicited neighbour advertisement on link-layer address change to update the neighbour tables of the corresponding hosts more quickly. This is the equivalent to arp_notify in ipv4 world. Signed-off-by: Hannes Frederic Sowa Signed-off-by: David S. Miller --- net/ipv6/addrconf.c | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'net/ipv6/addrconf.c') diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index fab23db8ee73..cb803b7bb0d8 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -4037,6 +4037,7 @@ static inline void ipv6_store_devconf(struct ipv6_devconf *cnf, array[DEVCONF_DISABLE_IPV6] = cnf->disable_ipv6; array[DEVCONF_ACCEPT_DAD] = cnf->accept_dad; array[DEVCONF_FORCE_TLLAO] = cnf->force_tllao; + array[DEVCONF_NDISC_NOTIFY] = cnf->ndisc_notify; } static inline size_t inet6_ifla6_size(void) @@ -4704,6 +4705,13 @@ static struct addrconf_sysctl_table .mode = 0644, .proc_handler = proc_dointvec }, + { + .procname = "ndisc_notify", + .data = &ipv6_devconf.ndisc_notify, + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = proc_dointvec + }, { /* sentinel */ } -- cgit v1.2.1