Merge pull request #3901 from nicolas-fort/T4072-extend-bridge-fwall

T4072: firewall extend bridge firewall

4 files changed, 197 insertions, 7 deletions

diff --git a/data/templates/firewall/nftables-bridge.j2 b/data/templates/firewall/nftables-bridge.j2
index dec027bf9..1975fb9b0 100644
--- a/data/templates/firewall/nftables-bridge.j2
+++ b/data/templates/firewall/nftables-bridge.j2
@@ -1,9 +1,13 @@
+{% import 'firewall/nftables-defines.j2' as group_tmpl %}
 {% macro bridge(bridge) %}
 {% set ns = namespace(sets=[]) %}
 {% if bridge.forward is vyos_defined %}
 {%     for prior, conf in bridge.forward.items() %}
     chain VYOS_FORWARD_{{ prior }} {
         type filter hook forward priority {{ prior }}; policy accept;
+{%         if global_options.state_policy is vyos_defined %}
+        jump VYOS_STATE_POLICY
+{%         endif %}
 {%         if conf.rule is vyos_defined %}
 {%             for rule_id, rule_conf in conf.rule.items() if rule_conf.disable is not vyos_defined %}
     {{ rule_conf | nft_rule('FWD', prior, rule_id, 'bri') }}
@@ -17,6 +21,46 @@
 {%     endfor %}
 {% endif %}
 
+{% if bridge.input is vyos_defined %}
+{%     for prior, conf in bridge.input.items() %}
+    chain VYOS_INPUT_{{ prior }} {
+        type filter hook input priority {{ prior }}; policy accept;
+{%         if global_options.state_policy is vyos_defined %}
+        jump VYOS_STATE_POLICY
+{%         endif %}
+{%         if conf.rule is vyos_defined %}
+{%             for rule_id, rule_conf in conf.rule.items() if rule_conf.disable is not vyos_defined %}
+    {{ rule_conf | nft_rule('INP', prior, rule_id, 'bri') }}
+{%                 if rule_conf.recent is vyos_defined %}
+{%                     set ns.sets = ns.sets + ['INP_' + prior + '_' + rule_id] %}
+{%                 endif %}
+{%             endfor %}
+{%         endif %}
+    {{ conf | nft_default_rule('INP-filter', 'bri') }}
+    }
+{%     endfor %}
+{% endif %}
+
+{% if bridge.output is vyos_defined %}
+{%     for prior, conf in bridge.output.items() %}
+    chain VYOS_OUTUT_{{ prior }} {
+        type filter hook output priority {{ prior }}; policy accept;
+{%         if global_options.state_policy is vyos_defined %}
+        jump VYOS_STATE_POLICY
+{%         endif %}
+{%         if conf.rule is vyos_defined %}
+{%             for rule_id, rule_conf in conf.rule.items() if rule_conf.disable is not vyos_defined %}
+    {{ rule_conf | nft_rule('OUT', prior, rule_id, 'bri') }}
+{%                 if rule_conf.recent is vyos_defined %}
+{%                     set ns.sets = ns.sets + ['OUT_' + prior + '_' + rule_id] %}
+{%                 endif %}
+{%             endfor %}
+{%         endif %}
+    {{ conf | nft_default_rule('OUT-filter', 'bri') }}
+    }
+{%     endfor %}
+{% endif %}
+
 {% if bridge.name is vyos_defined %}
 {%     for name_text, conf in bridge.name.items() %}
     chain NAME_{{ name_text }} {
@@ -32,4 +76,45 @@
     }
 {%     endfor %}
 {% endif %}
+
+{% for set_name in ns.sets %}
+    set RECENT_{{ set_name }} {
+        type ipv4_addr
+        size 65535
+        flags dynamic
+    }
+{% endfor %}
+{% for set_name in ip_fqdn %}
+    set FQDN_{{ set_name }} {
+        type ipv4_addr
+        flags interval
+    }
+{% endfor %}
+{% if geoip_updated.name is vyos_defined %}
+{%     for setname in geoip_updated.name %}
+    set {{ setname }} {
+        type ipv4_addr
+        flags interval
+    }
+{%     endfor %}
+{% endif %}
+
+{{ group_tmpl.groups(group, False, True) }}
+{{ group_tmpl.groups(group, True, True) }}
+
+{% if global_options.state_policy is vyos_defined %}
+    chain VYOS_STATE_POLICY {
+{%     if global_options.state_policy.established is vyos_defined %}
+        {{ global_options.state_policy.established | nft_state_policy('established') }}
+{%     endif %}
+{%     if global_options.state_policy.invalid is vyos_defined %}
+        {{ global_options.state_policy.invalid | nft_state_policy('invalid') }}
+{%     endif %}
+{%     if global_options.state_policy.related is vyos_defined %}
+        {{ global_options.state_policy.related | nft_state_policy('related') }}
+{%     endif %}
+        return
+    }
+{% endif %}
+
 {% endmacro %}
diff --git a/data/templates/firewall/nftables-defines.j2 b/data/templates/firewall/nftables-defines.j2
index 8a75ab2d6..fa6cd74c0 100644
--- a/data/templates/firewall/nftables-defines.j2
+++ b/data/templates/firewall/nftables-defines.j2
@@ -1,7 +1,7 @@
 {% macro groups(group, is_ipv6, is_l3) %}
 {% if group is vyos_defined %}
 {%     set ip_type = 'ipv6_addr' if is_ipv6 else 'ipv4_addr' %}
-{%     if group.address_group is vyos_defined and not is_ipv6 and is_l3 %}
+{%     if group.address_group is vyos_defined and not is_ipv6 %}
 {%         for group_name, group_conf in group.address_group.items() %}
 {%             set includes = group_conf.include if group_conf.include is vyos_defined else [] %}
     set A_{{ group_name }} {
@@ -14,7 +14,7 @@
     }
 {%         endfor %}
 {%     endif %}
-{%     if group.ipv6_address_group is vyos_defined and is_ipv6 and is_l3 %}
+{%     if group.ipv6_address_group is vyos_defined and is_ipv6 %}
 {%         for group_name, group_conf in group.ipv6_address_group.items() %}
 {%             set includes = group_conf.include if group_conf.include is vyos_defined else [] %}
     set A6_{{ group_name }} {
@@ -46,7 +46,7 @@
     }
 {%         endfor %}
 {%     endif %}
-{%     if group.network_group is vyos_defined and not is_ipv6 and is_l3 %}
+{%     if group.network_group is vyos_defined and not is_ipv6 %}
 {%         for group_name, group_conf in group.network_group.items() %}
 {%             set includes = group_conf.include if group_conf.include is vyos_defined else [] %}
     set N_{{ group_name }} {
@@ -59,7 +59,7 @@
     }
 {%         endfor %}
 {%     endif %}
-{%     if group.ipv6_network_group is vyos_defined and is_ipv6 and is_l3 %}
+{%     if group.ipv6_network_group is vyos_defined and is_ipv6 %}
 {%         for group_name, group_conf in group.ipv6_network_group.items() %}
 {%             set includes = group_conf.include if group_conf.include is vyos_defined else [] %}
     set N6_{{ group_name }} {
@@ -72,7 +72,7 @@
     }
 {%         endfor %}
 {%     endif %}
-{%     if group.port_group is vyos_defined and is_l3 %}
+{%     if group.port_group is vyos_defined %}
 {%         for group_name, group_conf in group.port_group.items() %}
 {%             set includes = group_conf.include if group_conf.include is vyos_defined else [] %}
     set P_{{ group_name }} {
diff --git a/data/templates/firewall/nftables.j2 b/data/templates/firewall/nftables.j2
index 68a3bfd87..82dcefac0 100644
--- a/data/templates/firewall/nftables.j2
+++ b/data/templates/firewall/nftables.j2
@@ -339,7 +339,104 @@ table ip6 vyos_filter {
 delete table bridge vyos_filter
 {% endif %}
 table bridge vyos_filter {
-{{ bridge_tmpl.bridge(bridge) }}
+{% if bridge is vyos_defined %}
+{%     if bridge.forward is vyos_defined %}
+{%         for prior, conf in bridge.forward.items() %}
+    chain VYOS_FORWARD_{{ prior }} {
+        type filter hook forward priority {{ prior }}; policy accept;
+{%             if global_options.state_policy is vyos_defined %}
+        jump VYOS_STATE_POLICY
+{%             endif %}
+{%             if conf.rule is vyos_defined %}
+{%                 for rule_id, rule_conf in conf.rule.items() if rule_conf.disable is not vyos_defined %}
+        {{ rule_conf | nft_rule('FWD', prior, rule_id, 'bri') }}
+{%                 endfor %}
+{%             endif %}
+        {{ conf | nft_default_rule('FWD-' + prior, 'bri') }}
+    }
+{%         endfor %}
+{%     endif %}
+
+{%     if bridge.input is vyos_defined %}
+{%         for prior, conf in bridge.input.items() %}
+    chain VYOS_INPUT_{{ prior }} {
+        type filter hook input priority {{ prior }}; policy accept;
+{%             if global_options.state_policy is vyos_defined %}
+        jump VYOS_STATE_POLICY
+{%             endif %}
+{%             if conf.rule is vyos_defined %}
+{%                 for rule_id, rule_conf in conf.rule.items() if rule_conf.disable is not vyos_defined %}
+        {{ rule_conf | nft_rule('INP', prior, rule_id, 'bri') }}
+{%                 endfor %}
+{%             endif %}
+        {{ conf | nft_default_rule('INP-' + prior, 'bri') }}
+    }
+{%         endfor %}
+{%     endif %}
+
+{%     if bridge.output is vyos_defined %}
+{%         for prior, conf in bridge.output.items() %}
+    chain VYOS_OUTUT_{{ prior }} {
+        type filter hook output priority {{ prior }}; policy accept;
+{%             if global_options.state_policy is vyos_defined %}
+        jump VYOS_STATE_POLICY
+{%             endif %}
+{%             if conf.rule is vyos_defined %}
+{%                 for rule_id, rule_conf in conf.rule.items() if rule_conf.disable is not vyos_defined %}
+        {{ rule_conf | nft_rule('OUT', prior, rule_id, 'bri') }}
+{%                 endfor %}
+{%             endif %}
+        {{ conf | nft_default_rule('OUT-' + prior, 'bri') }}
+    }
+{%         endfor %}
+{%     endif %}
+
+{%     if bridge.prerouting is vyos_defined %}
+{%         for prior, conf in bridge.prerouting.items() %}
+    chain VYOS_PREROUTING_{{ prior }} {
+        type filter hook prerouting priority {{ prior }}; policy accept;
+{%             if conf.rule is vyos_defined %}
+{%                 for rule_id, rule_conf in conf.rule.items() if rule_conf.disable is not vyos_defined %}
+        {{ rule_conf | nft_rule('PRE', prior, rule_id, 'bri') }}
+{%                 endfor %}
+{%             endif %}
+        {{ conf | nft_default_rule('PRE-' + prior, 'bri') }}
+    }
+{%         endfor %}
+{%     endif %}
+
+{%     if bridge.name is vyos_defined %}
+{%         for name_text, conf in bridge.name.items() %}
+    chain NAME_{{ name_text }} {
+{%             if conf.rule is vyos_defined %}
+{%                 for rule_id, rule_conf in conf.rule.items() if rule_conf.disable is not vyos_defined %}
+        {{ rule_conf | nft_rule('NAM', name_text, rule_id, 'bri') }}
+{%                     if rule_conf.recent is vyos_defined %}
+{%                         set ns.sets = ns.sets + ['NAM_' + name_text + '_' + rule_id] %}
+{%                     endif %}
+{%                 endfor %}
+{%             endif %}
+        {{ conf | nft_default_rule(name_text, 'bri') }}
+    }
+{%         endfor %}
+{%     endif %}
+
+{% endif %}
 {{ group_tmpl.groups(group, False, False) }}
+{{ group_tmpl.groups(group, True, False) }}
 
-}
+{% if global_options.state_policy is vyos_defined %}
+    chain VYOS_STATE_POLICY {
+{%     if global_options.state_policy.established is vyos_defined %}
+        {{ global_options.state_policy.established | nft_state_policy('established') }}
+{%     endif %}
+{%     if global_options.state_policy.invalid is vyos_defined %}
+        {{ global_options.state_policy.invalid | nft_state_policy('invalid') }}
+{%     endif %}
+{%     if global_options.state_policy.related is vyos_defined %}
+        {{ global_options.state_policy.related | nft_state_policy('related') }}
+{%     endif %}
+        return
+    }
+{% endif %}
+}
\ No newline at end of file
diff --git a/data/templates/firewall/sysctl-firewall.conf.j2 b/data/templates/firewall/sysctl-firewall.conf.j2
index b9c3311e2..6c33ffdc8 100644
--- a/data/templates/firewall/sysctl-firewall.conf.j2
+++ b/data/templates/firewall/sysctl-firewall.conf.j2
@@ -13,6 +13,14 @@ net.ipv4.conf.*.send_redirects = {{ 1 if global_options.send_redirects == 'enabl
 net.ipv4.tcp_syncookies = {{ 1 if global_options.syn_cookies == 'enable' else 0 }}
 net.ipv4.tcp_rfc1337 = {{ 1 if global_options.twa_hazards_protection == 'enable' else 0 }}
 
+{% if global_options.apply_to_bridged_traffic is vyos_defined %}
+net.bridge.bridge-nf-call-iptables = {{ 1 if global_options.apply_to_bridged_traffic.ipv4 is vyos_defined else 0 }}
+net.bridge.bridge-nf-call-ip6tables = {{ 1 if global_options.apply_to_bridged_traffic.ipv6 is vyos_defined else 0 }}
+{% else %}
+net.bridge.bridge-nf-call-iptables = 0
+net.bridge.bridge-nf-call-ip6tables = 0
+{% endif %}
+
 ## Timeout values:
 net.netfilter.nf_conntrack_icmp_timeout = {{ global_options.timeout.icmp }}
 net.netfilter.nf_conntrack_generic_timeout = {{ global_options.timeout.other }}