Daniel P. Berrangé 7431b3eb9a util: move virtual network firwall rules into private chains ... The previous commit created new chains to hold the firewall rules. This commit changes the code that creates rules to place them in the new private chains instead of the builtin top level chains. With two networks running, the rules in the filter table now look like -N LIBVIRT_FWI -N LIBVIRT_FWO -N LIBVIRT_FWX -N LIBVIRT_INP -N LIBVIRT_OUT -A INPUT -j LIBVIRT_INP -A FORWARD -j LIBVIRT_FWX -A FORWARD -j LIBVIRT_FWI -A FORWARD -j LIBVIRT_FWO -A OUTPUT -j LIBVIRT_OUT -A LIBVIRT_FWI -d 192.168.0.0/24 -o virbr0 -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT -A LIBVIRT_FWI -o virbr0 -j REJECT --reject-with icmp-port-unreachable -A LIBVIRT_FWI -d 192.168.1.0/24 -o virbr1 -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT -A LIBVIRT_FWI -o virbr1 -j REJECT --reject-with icmp-port-unreachable -A LIBVIRT_FWO -s 192.168.0.0/24 -i virbr0 -j ACCEPT -A LIBVIRT_FWO -i virbr0 -j REJECT --reject-with icmp-port-unreachable -A LIBVIRT_FWO -s 192.168.1.0/24 -i virbr1 -j ACCEPT -A LIBVIRT_FWO -i virbr1 -j REJECT --reject-with icmp-port-unreachable -A LIBVIRT_FWX -i virbr0 -o virbr0 -j ACCEPT -A LIBVIRT_FWX -i virbr1 -o virbr1 -j ACCEPT -A LIBVIRT_INP -i virbr0 -p udp -m udp --dport 53 -j ACCEPT -A LIBVIRT_INP -i virbr0 -p tcp -m tcp --dport 53 -j ACCEPT -A LIBVIRT_INP -i virbr0 -p udp -m udp --dport 67 -j ACCEPT -A LIBVIRT_INP -i virbr0 -p tcp -m tcp --dport 67 -j ACCEPT -A LIBVIRT_INP -i virbr1 -p udp -m udp --dport 53 -j ACCEPT -A LIBVIRT_INP -i virbr1 -p tcp -m tcp --dport 53 -j ACCEPT -A LIBVIRT_INP -i virbr1 -p udp -m udp --dport 67 -j ACCEPT -A LIBVIRT_INP -i virbr1 -p tcp -m tcp --dport 67 -j ACCEPT -A LIBVIRT_OUT -o virbr0 -p udp -m udp --dport 68 -j ACCEPT -A LIBVIRT_OUT -o virbr1 -p udp -m udp --dport 68 -j ACCEPT While in the nat table: -N LIBVIRT_PRT -A POSTROUTING -j LIBVIRT_PRT -A LIBVIRT_PRT -s 192.168.0.0/24 -d 224.0.0.0/24 -j RETURN -A LIBVIRT_PRT -s 192.168.0.0/24 -d 255.255.255.255/32 -j RETURN -A LIBVIRT_PRT -s 192.168.0.0/24 ! -d 192.168.0.0/24 -p tcp -j MASQUERADE --to-ports 1024-65535 -A LIBVIRT_PRT -s 192.168.0.0/24 ! -d 192.168.0.0/24 -p udp -j MASQUERADE --to-ports 1024-65535 -A LIBVIRT_PRT -s 192.168.0.0/24 ! -d 192.168.0.0/24 -j MASQUERADE -A LIBVIRT_PRT -s 192.168.1.0/24 -d 224.0.0.0/24 -j RETURN -A LIBVIRT_PRT -s 192.168.1.0/24 -d 255.255.255.255/32 -j RETURN -A LIBVIRT_PRT -s 192.168.1.0/24 ! -d 192.168.1.0/24 -p tcp -j MASQUERADE --to-ports 1024-65535 -A LIBVIRT_PRT -s 192.168.1.0/24 ! -d 192.168.1.0/24 -p udp -j MASQUERADE --to-ports 1024-65535 -A LIBVIRT_PRT -s 192.168.1.0/24 ! -d 192.168.1.0/24 -j MASQUERADE And finally the mangle table: -N LIBVIRT_PRT -A POSTROUTING -j LIBVIRT_PRT -A LIBVIRT_PRT -o virbr0 -p udp -m udp --dport 68 -j CHECKSUM --checksum-fill -A LIBVIRT_PRT -o virbr1 -p udp -m udp --dport 68 -j CHECKSUM --checksum-fill Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>		2019-01-29 13:37:11 +00:00
..
nat-default-linux.args	util: move virtual network firwall rules into private chains	2019-01-29 13:37:11 +00:00
nat-default.xml
nat-ipv6-linux.args	util: move virtual network firwall rules into private chains	2019-01-29 13:37:11 +00:00
nat-ipv6.xml
nat-many-ips-linux.args	util: move virtual network firwall rules into private chains	2019-01-29 13:37:11 +00:00
nat-many-ips.xml
nat-no-dhcp-linux.args	util: move virtual network firwall rules into private chains	2019-01-29 13:37:11 +00:00
nat-no-dhcp.xml
nat-tftp-linux.args	util: move virtual network firwall rules into private chains	2019-01-29 13:37:11 +00:00
nat-tftp.xml
route-default-linux.args	util: move virtual network firwall rules into private chains	2019-01-29 13:37:11 +00:00
route-default.xml