On 6/10/15, 12:13 AM, roopa wrote:
Robert/Thomas, All my changes are in the below repo under the 'mpls'
branch.
https://github.com/CumulusNetworks/net-next
https://github.com/CumulusNetworks/iproute2
The last iproute2 commit has a sample usage.
The commits pushed to this tree do not contain support for the
following yet (but working on it):
a) tunnel routes to work with tunnel RTA_OIF and a non-tunnel RTA_OIF:
The current commits in the tree assume a non-tunnel RTA_OIF.
If the tunnel driver has registered a dst_output func, dst_output
is set to the tunnel dst output handler in the receive route lookup
path which in turn does the encap
and xmits. Thomas had last suggested using a flag to skip the dst
output handler re-direction
for cases where RTA_OIF is a special tunnel netdev and the tunnel
driver xmit function
can do the encap. My current thinking is to pass the oif to the encap
parse handler and the handler can set the flag on the tunnel state.
And this flag can then be used to skip the dst_output re-direction.
This change should be trivial will fix it soon.
I have pushed this change to my github tree.
b) make RTA_OIF optional and do a fib lookup.
thinking about this some more, RTA_OIF is already optional. And
net/ipv4/fib_semantics.c:fib_check_nh will lookup the dev if not
specified. Wouldn't that be enough ?. (unless i have misunderstood
something here)
thanks,
Roopa
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