2e783b227766 ebt_ip: add support for matching IGMP type
b5fbb8d786c9 ebt_ip: add support for matching ICMP type and code
c5e5b784fd1a Move ICMP type handling functions from ebt_ip6 to useful_functions.c
11da52177196 include: sync linux/netfilter_bridge/ebt_ip.h with kernel
Note: the new features require at least kernel 4.17 or backported patches.
Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>