def max_zone_name_len():
"""
Netfilter limits length of chain to (currently) 28 chars.
The longest chain we create is FWDI_<zone>_allow,
which leaves 28 - 11 = 17 chars for <zone>.
"""
from firewall.core.base import SHORTCUTS
longest_shortcut = max(map (len, SHORTCUTS.values()))
return 28 - (longest_shortcut + len("__allow"))
def max_zone_name_len():
"""
Netfilter limits length of chain to (currently) 28 chars.
The longest chain we create is FWDI_<zone>_allow,
which leaves 28 - 11 = 17 chars for <zone>.
"""
from firewall.core.base import SHORTCUTS
longest_shortcut = max(map(len, SHORTCUTS.values()))
return 28 - (longest_shortcut + len("__allow"))
def max_policy_name_len():
"""
iptables limits length of chain to (currently) 28 chars.
The longest chain we create is POST_<policy>_allow,
which leaves 28 - 11 = 17 chars for <policy>.
"""
from firewall.core.ipXtables import POLICY_CHAIN_PREFIX
from firewall.core.base import SHORTCUTS
longest_shortcut = max(map(len, SHORTCUTS.values()))
return 28 - (longest_shortcut + len(POLICY_CHAIN_PREFIX) + len("_allow"))
