firewall/ipt-gateway
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Add 'allow_to_ext_net' and 'allow_to_ext_service'.

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This commit is contained in:
Christoph
2020-09-19 13:40:39 +02:00
parent a9961a5dde
commit 4b97303acd
5 changed files with 257 additions and 0 deletions
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76
ipt-firewall-gateway
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@ -1409,6 +1409,11 @@ if $permit_local_net_to_inet ; then
$ipt -A FORWARD -o $_dev -p ALL -m conntrack --ctstate NEW -j ACCEPT
fi
done
if $local_alias_interfaces && $kernel_activate_forwarding ; then
$ipt -A FORWARD -p tcp --tcp-flag ACK ACK -j ACCEPT
fi
echo_done
else
echo_skipped
@ -1948,6 +1953,77 @@ fi
# ---
# - Allow extern service
# ---
echononl "\tAllow extern service"
if [[ ${#allow_to_ext_service_arr[@]} -gt 0 ]] ; then
for _val in "${allow_to_ext_service_arr[@]}" ; do
IFS=':' read -a _val_arr <<< "${_val}"
for _dev in ${ext_if_arr[@]} ; do
$ipt -A OUTPUT -o $_dev -p ${_val_arr[2]} -d ${_val_arr[0]} --dport ${_val_arr[1]} -m conntrack --ctstate NEW -j ACCEPT
if $kernel_activate_forwarding && ! $permit_local_net_to_inet ; then
$ipt -A FORWARD -o $_dev -p ${_val_arr[2]} -d ${_val_arr[0]} --dport ${_val_arr[1]} -m conntrack --ctstate NEW -j ACCEPT
fi
done
if $local_alias_interfaces ; then
if [[ "${_val_arr[2]}" = "tcp" ]]; then
$ipt -A FORWARD -p tcp -d ${_val_arr[0]} --dport ${_val_arr[1]} --tcp-flag ACK ACK -j ACCEPT
$ipt -A FORWARD -p tcp -s ${_val_arr[0]} --sport ${_val_arr[1]} --tcp-flag ACK ACK -j ACCEPT
fi
fi
done
echo_done
else
echo_skipped
fi
# ---
# - Allow extern network
# ---
echononl "\tAllow extern network"
if [[ ${#allow_to_ext_net_arr[@]} -gt 0 ]] ; then
for _net in "${allow_to_ext_net_arr[@]}" ; do
for _dev in ${ext_if_arr[@]} ; do
$ipt -A OUTPUT -o $_dev -d $_net -m conntrack --ctstate NEW -j ACCEPT
if $kernel_activate_forwarding && ! $permit_local_net_to_inet ; then
$ipt -A FORWARD -o $_dev -d $_net -m conntrack --ctstate NEW -j ACCEPT
fi
done
if $local_alias_interfaces ; then
$ipt -A FORWARD -p tcp -d $_net --tcp-flag ACK ACK -j ACCEPT
$ipt -A FORWARD -p tcp -s $_net --tcp-flag ACK ACK -j ACCEPT
fi
done
echo_done
else
echo_skipped
fi
# ---
# - Separate local networks
# ---