iptables: limit chain name length to be consistent with targets

Creationg of chain names longer than the ones being able to jump to
should be inhibited for consistency.

References: http://marc.info/?l=netfilter-devel&m=128397022618316&w=2
Cc: Stig Thormodsrud <stig@vyatta.com>
Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
2 files changed