linux-stable.git/net/ipv6/ndisc.c, branch linux-3.8.y

ipv6: Change skb->data before using icmpv6_notify() to propagate redirect

2012-12-14T18:14:07+00:00

In function ndisc_redirect_rcv(), the skb->data points to the transport
header, but function icmpv6_notify() need the skb->data points to the
inner IP packet. So before using icmpv6_notify() to propagate redirect,
change skb->data to point the inner IP packet that triggered the sending
of the Redirect, and introduce struct rd_msg to make it easy.

Signed-off-by: Duan Jiong 
Signed-off-by: David S. Miller

ndisc: Fix padding error in link-layer address option.

2012-12-13T17:58:11+00:00

If a natural number n exists where 2 + data_len <= 8n < 2 + data_len + pad,
post padding is not initialized correctly.

(Un)fortunately, the only type that requires pad is Infiniband,
whose pad is 2 and data_len is 20, and this logical error has not
become obvious, but it is better to fix.

Note that ndisc_opt_addr_space() handles the situation described
above correctly.

Signed-off-by: YOSHIFUJI Hideaki 
Signed-off-by: David S. Miller

ndisc: Unexport ndisc_{build,send}_skb().

2012-12-12T17:42:29+00:00

These symbols were exported for bonding device by commit 305d552a
("bonding: send IPv6 neighbor advertisement on failover").

It bacame obsolete by commit 7c899432 ("bonding, ipv4, ipv6, vlan: Handle
NETDEV_BONDING_FAILOVER like NETDEV_NOTIFY_PEERS") and removed by
commit 4f5762ec ("bonding: Remove obsolete source file 'bond_ipv6.c'").

Signed-off-by: YOSHIFUJI Hideaki 
Signed-off-by: David S. Miller

ipv6: unify logic evaluating inet6_dev's accept_ra property

2012-12-01T16:36:37+00:00

As of 026359b [ipv6: Send ICMPv6 RSes only when RAs are accepted], the
logic determining whether to send Router Solicitations is identical
to the logic determining whether kernel accepts Router Advertisements.

However the condition itself is repeated in several code locations.

Unify it by introducing 'ipv6_accept_ra()' accessor.

Also, simplify the condition expression, making it more readable.
No semantic change.

Signed-off-by: Shmulik Ladkani 
Signed-off-by: David S. Miller

ipv6: add knob to send unsolicited ND on link-layer address change

2012-11-13T19:27:45+00:00

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

ipv6 ndisc: Use pre-defined in6addr_linklocal_allnodes.

2012-11-12T20:23:21+00:00

Signed-off-by: YOSHIFUJI Hideaki 
Signed-off-by: David S. Miller

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

2012-11-10T23:32:51+00:00

Conflicts:
	drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c

Minor conflict between the BCM_CNIC define removal in net-next
and a bug fix added to net.  Based upon a conflict resolution
patch posted by Stephen Rothwell.

Signed-off-by: David S. Miller

ipv6: send unsolicited neighbour advertisements to all-nodes

2012-11-09T21:18:52+00:00

As documented in RFC4861 (Neighbor Discovery for IP version 6) 7.2.6.,
unsolicited neighbour advertisements should be sent to the all-nodes
multicast address.

Signed-off-by: Hannes Frederic Sowa 
Signed-off-by: David S. Miller

ndisc: fix a typo in a comment in ndisc_recv_na()

2012-11-08T00:03:16+00:00

Signed-off-by: Nicolas Dichtel 
Signed-off-by: David S. Miller

ipv6: introduce ip6_rt_put()

2012-11-03T18:59:05+00:00

As suggested by Eric, we could introduce a helper function
for ipv6 too, to avoid checking if rt is NULL before
dst_release().

Cc: Eric Dumazet 
Cc: David S. Miller 
Signed-off-by: Cong Wang 
Signed-off-by: David S. Miller