diff options
| author | Octavian Purdila <opurdila@ixiacom.com> | 2010-01-06 20:37:01 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-01-06 20:37:01 -0800 |
| commit | 7ad6848c7e81a603605fad3f3575841aab004eea (patch) | |
| tree | c95cc3473a2c47d6dedbbe5bc1a298546fc4127f /security | |
| parent | 58933c643f86651decc4818cf680f9ec3b0460d2 (diff) | |
ip: fix mc_loop checks for tunnels with multicast outer addresses
When we have L3 tunnels with different inner/outer families
(i.e. IPV4/IPV6) which use a multicast address as the outer tunnel
destination address, multicast packets will be loopbacked back to the
sending socket even if IP*_MULTICAST_LOOP is set to disabled.
The mc_loop flag is present in the family specific part of the socket
(e.g. the IPv4 or IPv4 specific part). setsockopt sets the inner
family mc_loop flag. When the packet is pushed through the L3 tunnel
it will eventually be processed by the outer family which if different
will check the flag in a different part of the socket then it was set.
Signed-off-by: Octavian Purdila <opurdila@ixiacom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'security')
0 files changed, 0 insertions, 0 deletions