Paul Davey c8715a8e9f ipmr: Add high byte of VIF ID to igmpmsg
Use the unused3 byte in struct igmpmsg to hold the high 8 bits of the
VIF ID.

If using more than 255 IPv4 multicast interfaces it is necessary to have
access to a VIF ID for cache reports that is wider than 8 bits, the VIF
ID present in the igmpmsg reports sent to mroute_sk was only 8 bits wide
in the igmpmsg header.  Adding the high 8 bits of the 16 bit VIF ID in
the unused byte allows use of more than 255 IPv4 multicast interfaces.

Signed-off-by: Paul Davey <paul.davey@alliedtelesis.co.nz>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-10 12:25:51 -07:00
..
2020-06-23 20:27:09 -07:00
2020-08-24 17:31:20 -07:00
2020-08-27 07:55:59 -07:00
2020-07-13 17:20:40 -07:00