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cda7d5abe0
Extend cmsg_sender.c with a new option '-Q' to send SO_PRIORITY ancillary data. cmsg_so_priority.sh script added to validate SO_PRIORITY behavior by creating VLAN device with egress QoS mapping and testing packet priorities using flower filters. Verify that packets with different priorities are correctly matched and counted by filters for multiple protocols and IP versions. Reviewed-by: Willem de Bruijn <willemb@google.com> Acked-by: Willem de Bruijn <willemb@google.com> Reviewed-by: Ido Schimmel <idosch@nvidia.com> Tested-by: Ido Schimmel <idosch@nvidia.com> Suggested-by: Ido Schimmel <idosch@idosch.org> Signed-off-by: Anna Emese Nyiri <annaemesenyiri@gmail.com> Link: https://patch.msgid.link/20241213084457.45120-4-annaemesenyiri@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>