ip: report the original address of ICMP messages
authorJulian Anastasov <ja@ssi.bg>
Tue, 23 Jun 2015 05:34:39 +0000 (08:34 +0300)
committerDavid S. Miller <davem@davemloft.net>
Wed, 24 Jun 2015 07:48:08 +0000 (00:48 -0700)
commit34b99df4e6256ddafb663c6de0711dceceddfe0e
tree2b34206c8709e2df08c940a92ff0666d13c75482
parenta076e6bfe7fe92a3825b3d1448e6f988fd033722
ip: report the original address of ICMP messages

ICMP messages can trigger ICMP and local errors. In this case
serr->port is 0 and starting from Linux 4.0 we do not return
the original target address to the error queue readers.
Add function to define which errors provide addr_offset.
With this fix my ping command is not silent anymore.

Fixes: c247f0534cc5 ("ip: fix error queue empty skb handling")
Signed-off-by: Julian Anastasov <ja@ssi.bg>
Acked-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/ipv4/ip_sockglue.c
net/ipv6/datagram.c