firewall/zones/dmz.nft

#! /sbin/nft -f

# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.

# Copyright © 2018-2019 Hugo Levy-Falk <hugo@klafyvel.me>

table inet firewall {

	set dns {
		type ipv4_addr
		flags interval
		elements = { 193.48.225.204, 193.48.225.29 }
	}

	set www {
		type ipv4_addr
		flags interval
		elements = { 193.48.225.241, 193.48.225.242, 193.48.225.34, 193.48.225.25, 193.48.225.36, 193.48.225.42, 193.48.225.60, 193.48.225.61, 193.48.225.62, 193.48.225.20, 193.48.225.101}
	}

	set irc {
		type ipv4_addr
		flags interval
		elements = {}
	}

	set znc {
		type ipv4_addr
		flags interval
		elements = { 193.48.225.242 }
	}

	set smtp {
		type ipv4_addr
		flags interval
		elements = { 193.48.225.207, 193.48.225.37 }
	}

	set letsencrypt {
		type ipv4_addr
		flags interval
		elements = {193.48.225.246, 193.48.225.248, 193.48.225.249, 193.48.225.20}
	}

	set federez {
		type ipv4_addr
		flags interval
		elements = {193.48.225.201}
	}

	set gitlab {
		type ipv4_addr
		flags interval
		elements = { 193.48.225.243 }
	}

	set video {
		type ipv4_addr
		flags interval
		elements = { }
	}

	set ldap {
		type ipv4_addr
		flags interval
		elements = { 193.48.225.246}
	}

	set ldap_clients {
		type ipv4_addr
		flags interval
		elements = { 10.7.0.0/24, 10.69.0.0/20, 185.230.78.37, 51.15.178.125, 193.48.225.0/24, 193.54.193.103 }
	}

	set mysql {
		type ipv4_addr
		flags interval
		elements = {}
	}

	set minecraft {
		type ipv4_addr
		flags interval
		elements = {}
	}

	set latoilescoute {
		type ipv4_addr
		flags interval
		elements = {}
	}

	set wireguard {
		type ipv4_addr
		flags interval
		elements = { 193.48.225.209 }
	}

	set radius {
		type ipv4_addr
		flags interval
		elements = { 193.48.225.20 }
	}

        set dns_recursif {
                type ipv4_addr
                flags interval
                elements = { 193.48.225.30 }
        }

	chain to_dmz {
		ip saddr 10.70.0.0/16 accept

		ip daddr @smtp tcp dport { 22, 25, 80, 443, 143, 993, 587} accept
		ip daddr @dns tcp dport { 22, 53 } accept
		ip daddr @dns udp dport { 53 } accept
		ip daddr @www tcp dport { 21, 22, 80, 443, 3000 } accept
		ip daddr @federez tcp dport { 22, 53, 80, 443, 389 } accept
		ip daddr @federez udp dport { 53, 636 } accept
		ip daddr @znc tcp dport { 6667 } accept
		ip daddr @letsencrypt tcp dport { 80, 443 } accept
		ip daddr @irc tcp dport { 22, 6667, 6697, 6767, 7000, 9090 } accept
		ip daddr @video tcp dport { 37700, 6754 } accept
		ip daddr @video udp dport { 37800 } accept
		ip daddr @video tcp dport { 5678 } accept
		ip daddr @wireguard udp dport { 51820 } accept
		ip saddr $monitoring udp dport { 161 } accept

		ip daddr @minecraft tcp dport { 22, 25565 } accept
		ip daddr @minecraft udp dport { 22, 25565 } accept
        ip daddr @latoilescoute udp dport { 22, 161, 16384-32768 } accept
		ip daddr @latoilescoute tcp dport { 22 } accept
		ip saddr @ldap_clients ip daddr @ldap tcp dport { 389, 636 } accept
		ip saddr @ldap_clients ip daddr @ldap udp dport { 636 } accept

		ip daddr @radius udp dport { 1812, 1814 } accept
		ip daddr @dns_recursif udp dport { 53, 853, 443 } accept
		ip daddr @dns_recursif tcp dport { 53, 853, 443 } accept
		drop
	}

	chain from_dmz {
		ip daddr 10.0.0.0/8 accept
		ip daddr @mysql ip saddr != @www tcp dport 3306 drop
		ip daddr @mysql ip saddr != @smtp tcp dport 3306 drop
	}

}