From 20551379e8e2b4b6e342b39ea67738876e559bbf Mon Sep 17 00:00:00 2001 From: Nicolas Fort Date: Wed, 24 Jul 2024 14:08:19 +0000 Subject: T4072: firewall: extend firewall bridge capabilities, in order to include new chains, priorities, and firewall groups --- data/templates/firewall/nftables-bridge.j2 | 85 +++++++++++++++++++++++ data/templates/firewall/nftables-defines.j2 | 10 +-- data/templates/firewall/nftables.j2 | 101 +++++++++++++++++++++++++++- 3 files changed, 189 insertions(+), 7 deletions(-) (limited to 'data/templates/firewall') 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 -- cgit v1.2.3 From a8a9cfe750da719605ab90ce8c83c42276ab07f3 Mon Sep 17 00:00:00 2001 From: Nicolas Fort Date: Wed, 24 Jul 2024 17:40:28 +0000 Subject: T6570: firewall: add global-option to configure sysctl parameter for enabling/disabling sending traffic from bridge layer to ipvX layer --- data/templates/firewall/sysctl-firewall.conf.j2 | 8 ++++++++ .../include/firewall/global-options.xml.i | 19 +++++++++++++++++++ src/etc/sysctl.d/30-vyos-router.conf | 5 +++++ 3 files changed, 32 insertions(+) (limited to 'data/templates/firewall') diff --git a/data/templates/firewall/sysctl-firewall.conf.j2 b/data/templates/firewall/sysctl-firewall.conf.j2 index b9c3311e2..119c6577b 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_for_bridge is vyos_defined %} +net.bridge.bridge-nf-call-iptables = {{ 1 if global_options.apply_for_bridge.ipv4 is vyos_defined else 0 }} +net.bridge.bridge-nf-call-ip6tables = {{ 1 if global_options.apply_for_bridge.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 }} diff --git a/interface-definitions/include/firewall/global-options.xml.i b/interface-definitions/include/firewall/global-options.xml.i index 9039b76fd..1f2899672 100644 --- a/interface-definitions/include/firewall/global-options.xml.i +++ b/interface-definitions/include/firewall/global-options.xml.i @@ -44,6 +44,25 @@ disable + + + Apply configured firewall rules to traffic switched by bridges + + + + + Apply configured IPv4 firewall rules + + + + + + Apply configured IPv6 firewall rules + + + + + Policy for handling IPv4 directed broadcast forwarding on all interfaces diff --git a/src/etc/sysctl.d/30-vyos-router.conf b/src/etc/sysctl.d/30-vyos-router.conf index c9b8ef8fe..76be41ddc 100644 --- a/src/etc/sysctl.d/30-vyos-router.conf +++ b/src/etc/sysctl.d/30-vyos-router.conf @@ -110,3 +110,8 @@ net.ipv6.conf.all.seg6_enabled = 0 net.ipv6.conf.default.seg6_enabled = 0 net.vrf.strict_mode = 1 + +# https://vyos.dev/T6570 +# By default, do not forward traffic from bridge to IPvX layer +net.bridge.bridge-nf-call-iptables = 0 +net.bridge.bridge-nf-call-ip6tables = 0 \ No newline at end of file -- cgit v1.2.3 From fa764927c14350104671edbb2bb3570ab267e416 Mon Sep 17 00:00:00 2001 From: Nicolas Fort Date: Mon, 29 Jul 2024 17:55:56 +0000 Subject: T4072: firewall: extend firewall bridge smoketest --- data/templates/firewall/sysctl-firewall.conf.j2 | 2 +- smoketest/scripts/cli/test_firewall.py | 34 +++++++++++++++++++++++-- 2 files changed, 33 insertions(+), 3 deletions(-) (limited to 'data/templates/firewall') diff --git a/data/templates/firewall/sysctl-firewall.conf.j2 b/data/templates/firewall/sysctl-firewall.conf.j2 index 119c6577b..ae6a8969c 100644 --- a/data/templates/firewall/sysctl-firewall.conf.j2 +++ b/data/templates/firewall/sysctl-firewall.conf.j2 @@ -17,7 +17,7 @@ net.ipv4.tcp_rfc1337 = {{ 1 if global_options.twa_hazards_protection == 'enable' net.bridge.bridge-nf-call-iptables = {{ 1 if global_options.apply_for_bridge.ipv4 is vyos_defined else 0 }} net.bridge.bridge-nf-call-ip6tables = {{ 1 if global_options.apply_for_bridge.ipv6 is vyos_defined else 0 }} {% else %} -net.bridge.bridge-nf-call-iptables =0 +net.bridge.bridge-nf-call-iptables = 0 net.bridge.bridge-nf-call-ip6tables = 0 {% endif %} diff --git a/smoketest/scripts/cli/test_firewall.py b/smoketest/scripts/cli/test_firewall.py index e6317050c..d2826a8bd 100755 --- a/smoketest/scripts/cli/test_firewall.py +++ b/smoketest/scripts/cli/test_firewall.py @@ -695,13 +695,21 @@ class TestFirewall(VyOSUnitTestSHIM.TestCase): self.verify_nftables_chain([['accept']], 'ip vyos_conntrack', 'FW_CONNTRACK') self.verify_nftables_chain([['return']], 'ip6 vyos_conntrack', 'FW_CONNTRACK') - def test_bridge_basic_rules(self): + def test_bridge_firewall(self): name = 'smoketest' interface_in = 'eth0' mac_address = '00:53:00:00:00:01' vlan_id = '12' vlan_prior = '3' + # Check bridge-nf-call-iptables default value: 0 + self.assertEqual(get_sysctl('net.bridge.bridge-nf-call-iptables'), '0') + self.assertEqual(get_sysctl('net.bridge.bridge-nf-call-ip6tables'), '0') + + self.cli_set(['firewall', 'group', 'ipv6-address-group', 'AGV6', 'address', '2001:db1::1']) + self.cli_set(['firewall', 'global-options', 'state-policy', 'established', 'action', 'accept']) + self.cli_set(['firewall', 'global-options', 'apply-for-bridge', 'ipv4']) + self.cli_set(['firewall', 'bridge', 'name', name, 'default-action', 'accept']) self.cli_set(['firewall', 'bridge', 'name', name, 'default-log']) self.cli_set(['firewall', 'bridge', 'name', name, 'rule', '1', 'action', 'accept']) @@ -718,20 +726,42 @@ class TestFirewall(VyOSUnitTestSHIM.TestCase): self.cli_set(['firewall', 'bridge', 'forward', 'filter', 'rule', '2', 'jump-target', name]) self.cli_set(['firewall', 'bridge', 'forward', 'filter', 'rule', '2', 'vlan', 'priority', vlan_prior]) + self.cli_set(['firewall', 'bridge', 'input', 'filter', 'rule', '1', 'action', 'accept']) + self.cli_set(['firewall', 'bridge', 'input', 'filter', 'rule', '1', 'inbound-interface', 'name', interface_in]) + self.cli_set(['firewall', 'bridge', 'input', 'filter', 'rule', '1', 'source', 'address', '192.0.2.2']) + self.cli_set(['firewall', 'bridge', 'input', 'filter', 'rule', '1', 'state', 'new']) + + self.cli_set(['firewall', 'bridge', 'prerouting', 'filter', 'rule', '1', 'action', 'drop']) + self.cli_set(['firewall', 'bridge', 'prerouting', 'filter', 'rule', '1', 'destination', 'group', 'ipv6-address-group', 'AGV6']) + + self.cli_commit() nftables_search = [ + ['set A6_AGV6'], + ['type ipv6_addr'], + ['elements', '2001:db1::1'], ['chain VYOS_FORWARD_filter'], ['type filter hook forward priority filter; policy accept;'], + ['jump VYOS_STATE_POLICY'], [f'vlan id {vlan_id}', 'accept'], [f'vlan pcp {vlan_prior}', f'jump NAME_{name}'], ['log prefix "[bri-FWD-filter-default-D]"', 'drop', 'FWD-filter default-action drop'], [f'chain NAME_{name}'], [f'ether saddr {mac_address}', f'iifname "{interface_in}"', f'log prefix "[bri-NAM-{name}-1-A]" log level crit', 'accept'], - ['accept', f'{name} default-action accept'] + ['accept', f'{name} default-action accept'], + ['chain VYOS_INPUT_filter'], + ['type filter hook input priority filter; policy accept;'], + ['ct state new', 'ip saddr 192.0.2.2', f'iifname "{interface_in}"', 'accept'], + ['chain VYOS_PREROUTING_filter'], + ['type filter hook prerouting priority filter; policy accept;'], + ['ip6 daddr @A6_AGV6', 'drop'] ] self.verify_nftables(nftables_search, 'bridge vyos_filter') + ## Check bridge-nf-call-iptables is set to 1, and for ipv6 remains on default 0 + self.assertEqual(get_sysctl('net.bridge.bridge-nf-call-iptables'), '1') + self.assertEqual(get_sysctl('net.bridge.bridge-nf-call-ip6tables'), '0') def test_source_validation(self): # Strict -- cgit v1.2.3 From c33cd6157ebc5c08dc1e3ff1aa36f2d2fbb9ca83 Mon Sep 17 00:00:00 2001 From: Nicolas Fort Date: Wed, 31 Jul 2024 12:42:25 +0000 Subject: T4072: change same helpers in xml definitions; add notrack action for prerouting chain; re introduce in policy; change global options for passing traffic to IPvX firewall; update smoketest --- data/templates/firewall/sysctl-firewall.conf.j2 | 6 +- .../include/firewall/bridge-custom-name.xml.i | 1 + .../include/firewall/bridge-hook-forward.xml.i | 1 + .../include/firewall/bridge-hook-input.xml.i | 1 + .../include/firewall/bridge-hook-output.xml.i | 1 + .../include/firewall/bridge-hook-prerouting.xml.i | 4 +- .../include/firewall/common-rule-bridge.xml.i | 1 - .../include/firewall/global-options.xml.i | 2 +- .../firewall/set-packet-modifications.xml.i | 32 ++++-- smoketest/scripts/cli/test_firewall.py | 7 +- src/conf_mode/firewall.py | 117 ++++++++++----------- 11 files changed, 91 insertions(+), 82 deletions(-) (limited to 'data/templates/firewall') diff --git a/data/templates/firewall/sysctl-firewall.conf.j2 b/data/templates/firewall/sysctl-firewall.conf.j2 index ae6a8969c..6c33ffdc8 100644 --- a/data/templates/firewall/sysctl-firewall.conf.j2 +++ b/data/templates/firewall/sysctl-firewall.conf.j2 @@ -13,9 +13,9 @@ 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_for_bridge is vyos_defined %} -net.bridge.bridge-nf-call-iptables = {{ 1 if global_options.apply_for_bridge.ipv4 is vyos_defined else 0 }} -net.bridge.bridge-nf-call-ip6tables = {{ 1 if global_options.apply_for_bridge.ipv6 is vyos_defined 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 diff --git a/interface-definitions/include/firewall/bridge-custom-name.xml.i b/interface-definitions/include/firewall/bridge-custom-name.xml.i index 48d48949e..9a2a829d0 100644 --- a/interface-definitions/include/firewall/bridge-custom-name.xml.i +++ b/interface-definitions/include/firewall/bridge-custom-name.xml.i @@ -32,6 +32,7 @@ #include + #include #include #include #include diff --git a/interface-definitions/include/firewall/bridge-hook-forward.xml.i b/interface-definitions/include/firewall/bridge-hook-forward.xml.i index 0bc1fc357..fcc981925 100644 --- a/interface-definitions/include/firewall/bridge-hook-forward.xml.i +++ b/interface-definitions/include/firewall/bridge-hook-forward.xml.i @@ -26,6 +26,7 @@ #include + #include #include #include #include diff --git a/interface-definitions/include/firewall/bridge-hook-input.xml.i b/interface-definitions/include/firewall/bridge-hook-input.xml.i index 32de14d54..f6a11f8da 100644 --- a/interface-definitions/include/firewall/bridge-hook-input.xml.i +++ b/interface-definitions/include/firewall/bridge-hook-input.xml.i @@ -26,6 +26,7 @@ #include + #include #include #include #include diff --git a/interface-definitions/include/firewall/bridge-hook-output.xml.i b/interface-definitions/include/firewall/bridge-hook-output.xml.i index da0c02470..38b8b08ca 100644 --- a/interface-definitions/include/firewall/bridge-hook-output.xml.i +++ b/interface-definitions/include/firewall/bridge-hook-output.xml.i @@ -26,6 +26,7 @@ #include + #include #include #include #include diff --git a/interface-definitions/include/firewall/bridge-hook-prerouting.xml.i b/interface-definitions/include/firewall/bridge-hook-prerouting.xml.i index b6c1fe87a..ea567644f 100644 --- a/interface-definitions/include/firewall/bridge-hook-prerouting.xml.i +++ b/interface-definitions/include/firewall/bridge-hook-prerouting.xml.i @@ -14,7 +14,7 @@ #include - Bridge Firewall prerouting filter rule number + Bridge firewall prerouting filter rule number u32:1-999999 Number for this firewall rule @@ -26,7 +26,7 @@ #include - #include + #include #include diff --git a/interface-definitions/include/firewall/common-rule-bridge.xml.i b/interface-definitions/include/firewall/common-rule-bridge.xml.i index b47408aa8..9ae28f7be 100644 --- a/interface-definitions/include/firewall/common-rule-bridge.xml.i +++ b/interface-definitions/include/firewall/common-rule-bridge.xml.i @@ -1,7 +1,6 @@ #include #include -#include #include #include #include diff --git a/interface-definitions/include/firewall/global-options.xml.i b/interface-definitions/include/firewall/global-options.xml.i index 1f2899672..cee8f1854 100644 --- a/interface-definitions/include/firewall/global-options.xml.i +++ b/interface-definitions/include/firewall/global-options.xml.i @@ -44,7 +44,7 @@ disable - + Apply configured firewall rules to traffic switched by bridges diff --git a/interface-definitions/include/firewall/set-packet-modifications.xml.i b/interface-definitions/include/firewall/set-packet-modifications.xml.i index eda568a0e..ee019b64e 100644 --- a/interface-definitions/include/firewall/set-packet-modifications.xml.i +++ b/interface-definitions/include/firewall/set-packet-modifications.xml.i @@ -6,10 +6,10 @@ - Connection marking + Set connection mark u32:0-2147483647 - Connection marking + Connection mark @@ -18,7 +18,7 @@ - Packet Differentiated Services Codepoint (DSCP) + Set DSCP (Packet Differentiated Services Codepoint) bits u32:0-63 DSCP number @@ -30,10 +30,10 @@ - Packet marking + Set packet mark u32:1-2147483647 - Packet marking + Packet mark @@ -42,7 +42,7 @@ - Routing table to forward packet with + Set the routing table for matched packets u32:1-200 Table number @@ -61,9 +61,27 @@ + + + VRF to forward packet with + + txt + VRF instance name + + + default + Forward into default global VRF + + + default + vrf name + + #include + + - TCP Maximum Segment Size + Set TCP Maximum Segment Size u32:500-1460 Explicitly set TCP MSS value diff --git a/smoketest/scripts/cli/test_firewall.py b/smoketest/scripts/cli/test_firewall.py index d2826a8bd..551f8ce65 100755 --- a/smoketest/scripts/cli/test_firewall.py +++ b/smoketest/scripts/cli/test_firewall.py @@ -708,7 +708,7 @@ class TestFirewall(VyOSUnitTestSHIM.TestCase): self.cli_set(['firewall', 'group', 'ipv6-address-group', 'AGV6', 'address', '2001:db1::1']) self.cli_set(['firewall', 'global-options', 'state-policy', 'established', 'action', 'accept']) - self.cli_set(['firewall', 'global-options', 'apply-for-bridge', 'ipv4']) + self.cli_set(['firewall', 'global-options', 'apply-to-bridged-traffic', 'ipv4']) self.cli_set(['firewall', 'bridge', 'name', name, 'default-action', 'accept']) self.cli_set(['firewall', 'bridge', 'name', name, 'default-log']) @@ -731,10 +731,9 @@ class TestFirewall(VyOSUnitTestSHIM.TestCase): self.cli_set(['firewall', 'bridge', 'input', 'filter', 'rule', '1', 'source', 'address', '192.0.2.2']) self.cli_set(['firewall', 'bridge', 'input', 'filter', 'rule', '1', 'state', 'new']) - self.cli_set(['firewall', 'bridge', 'prerouting', 'filter', 'rule', '1', 'action', 'drop']) + self.cli_set(['firewall', 'bridge', 'prerouting', 'filter', 'rule', '1', 'action', 'notrack']) self.cli_set(['firewall', 'bridge', 'prerouting', 'filter', 'rule', '1', 'destination', 'group', 'ipv6-address-group', 'AGV6']) - self.cli_commit() nftables_search = [ @@ -755,7 +754,7 @@ class TestFirewall(VyOSUnitTestSHIM.TestCase): ['ct state new', 'ip saddr 192.0.2.2', f'iifname "{interface_in}"', 'accept'], ['chain VYOS_PREROUTING_filter'], ['type filter hook prerouting priority filter; policy accept;'], - ['ip6 daddr @A6_AGV6', 'drop'] + ['ip6 daddr @A6_AGV6', 'notrack'] ] self.verify_nftables(nftables_search, 'bridge vyos_filter') diff --git a/src/conf_mode/firewall.py b/src/conf_mode/firewall.py index 77218cc77..02bf00bcc 100755 --- a/src/conf_mode/firewall.py +++ b/src/conf_mode/firewall.py @@ -48,7 +48,12 @@ valid_groups = [ 'domain_group', 'network_group', 'port_group', - 'interface_group' + 'interface_group', + ## Added for group ussage in bridge firewall + 'ipv4_address_group', + 'ipv6_address_group', + 'ipv4_network_group', + 'ipv6_network_group' ] nested_group_types = [ @@ -129,41 +134,32 @@ def get_config(config=None): return firewall -def verify_jump_target(firewall, root_chain, jump_target, ipv6, recursive=False): +def verify_jump_target(firewall, hook, jump_target, family, recursive=False): targets_seen = [] targets_pending = [jump_target] while targets_pending: target = targets_pending.pop() - if not ipv6: - if target not in dict_search_args(firewall, 'ipv4', 'name'): - raise ConfigError(f'Invalid jump-target. Firewall name {target} does not exist on the system') - target_rules = dict_search_args(firewall, 'ipv4', 'name', target, 'rule') - else: - if target not in dict_search_args(firewall, 'ipv6', 'name'): - raise ConfigError(f'Invalid jump-target. Firewall ipv6 name {target} does not exist on the system') - target_rules = dict_search_args(firewall, 'ipv6', 'name', target, 'rule') + if 'name' not in firewall[family]: + raise ConfigError(f'Invalid jump-target. Firewall {family} name {target} does not exist on the system') + elif target not in dict_search_args(firewall, family, 'name'): + raise ConfigError(f'Invalid jump-target. Firewall {family} name {target} does not exist on the system') - no_ipsec_in = root_chain in ('output', ) + target_rules = dict_search_args(firewall, family, 'name', target, 'rule') + no_ipsec_in = hook in ('output', ) if target_rules: for target_rule_conf in target_rules.values(): # Output hook types will not tolerate 'meta ipsec exists' matches even in jump targets: if no_ipsec_in and (dict_search_args(target_rule_conf, 'ipsec', 'match_ipsec_in') is not None \ or dict_search_args(target_rule_conf, 'ipsec', 'match_none_in') is not None): - if not ipv6: - raise ConfigError(f'Invalid jump-target for {root_chain}. Firewall name {target} rules contain incompatible ipsec inbound matches') - else: - raise ConfigError(f'Invalid jump-target for {root_chain}. Firewall ipv6 name {target} rules contain incompatible ipsec inbound matches') + raise ConfigError(f'Invalid jump-target for {hook}. Firewall {family} name {target} rules contain incompatible ipsec inbound matches') # Make sure we're not looping back on ourselves somewhere: if recursive and 'jump_target' in target_rule_conf: child_target = target_rule_conf['jump_target'] if child_target in targets_seen: - if not ipv6: - raise ConfigError(f'Loop detected in jump-targets, firewall name {target} refers to previously traversed name {child_target}') - else: - raise ConfigError(f'Loop detected in jump-targets, firewall ipv6 name {target} refers to previously traversed ipv6 name {child_target}') + raise ConfigError(f'Loop detected in jump-targets, firewall {family} name {target} refers to previously traversed {family} name {child_target}') targets_pending.append(child_target) if len(targets_seen) == 7: path_txt = ' -> '.join(targets_seen) @@ -171,7 +167,7 @@ def verify_jump_target(firewall, root_chain, jump_target, ipv6, recursive=False) targets_seen.append(target) -def verify_rule(firewall, chain_name, rule_conf, ipv6): +def verify_rule(firewall, family, hook, priority, rule_id, rule_conf): if 'action' not in rule_conf: raise ConfigError('Rule action must be defined') @@ -182,10 +178,10 @@ def verify_rule(firewall, chain_name, rule_conf, ipv6): if 'jump' not in rule_conf['action']: raise ConfigError('jump-target defined, but action jump needed and it is not defined') target = rule_conf['jump_target'] - if chain_name != 'name': # This is a bit clumsy, but consolidates a chunk of code. - verify_jump_target(firewall, chain_name, target, ipv6, recursive=True) + if hook != 'name': # This is a bit clumsy, but consolidates a chunk of code. + verify_jump_target(firewall, hook, target, family, recursive=True) else: - verify_jump_target(firewall, chain_name, target, ipv6, recursive=False) + verify_jump_target(firewall, hook, target, family, recursive=False) if rule_conf['action'] == 'offload': if 'offload_target' not in rule_conf: @@ -247,9 +243,9 @@ def verify_rule(firewall, chain_name, rule_conf, ipv6): raise ConfigError(f'Cannot match a tcp flag as set and not set') if 'protocol' in rule_conf: - if rule_conf['protocol'] == 'icmp' and ipv6: + if rule_conf['protocol'] == 'icmp' and family == 'ipv6': raise ConfigError(f'Cannot match IPv4 ICMP protocol on IPv6, use ipv6-icmp') - if rule_conf['protocol'] == 'ipv6-icmp' and not ipv6: + if rule_conf['protocol'] == 'ipv6-icmp' and family == 'ipv4': raise ConfigError(f'Cannot match IPv6 ICMP protocol on IPv4, use icmp') for side in ['destination', 'source']: @@ -267,7 +263,18 @@ def verify_rule(firewall, chain_name, rule_conf, ipv6): if group in side_conf['group']: group_name = side_conf['group'][group] - fw_group = f'ipv6_{group}' if ipv6 and group in ['address_group', 'network_group'] else group + if family == 'ipv6' and group in ['address_group', 'network_group']: + fw_group = f'ipv6_{group}' + elif family == 'bridge': + if group =='ipv4_address_group': + fw_group = 'address_group' + elif group == 'ipv4_network_group': + fw_group = 'network_group' + else: + fw_group = group + else: + fw_group = group + error_group = fw_group.replace("_", "-") if group in ['address_group', 'network_group', 'domain_group']: @@ -303,7 +310,7 @@ def verify_rule(firewall, chain_name, rule_conf, ipv6): raise ConfigError(f'Dynamic address group must be defined.') else: target = rule_conf['add_address_to_group'][type]['address_group'] - fwall_group = 'ipv6_address_group' if ipv6 else 'address_group' + fwall_group = 'ipv6_address_group' if family == 'ipv6' else 'address_group' group_obj = dict_search_args(firewall, 'group', 'dynamic_group', fwall_group, target) if group_obj is None: raise ConfigError(f'Invalid dynamic address group on firewall rule') @@ -380,43 +387,25 @@ def verify(firewall): for group_name, group in groups.items(): verify_nested_group(group_name, group, groups, []) - if 'ipv4' in firewall: - for name in ['name','forward','input','output', 'prerouting']: - if name in firewall['ipv4']: - for name_id, name_conf in firewall['ipv4'][name].items(): - if 'jump' in name_conf['default_action'] and 'default_jump_target' not in name_conf: - raise ConfigError('default-action set to jump, but no default-jump-target specified') - if 'default_jump_target' in name_conf: - target = name_conf['default_jump_target'] - if 'jump' not in name_conf['default_action']: - raise ConfigError('default-jump-target defined, but default-action jump needed and it is not defined') - if name_conf['default_jump_target'] == name_id: - raise ConfigError(f'Loop detected on default-jump-target.') - verify_jump_target(firewall, name, target, False, recursive=True) - - if 'rule' in name_conf: - for rule_id, rule_conf in name_conf['rule'].items(): - verify_rule(firewall, name, rule_conf, False) - - if 'ipv6' in firewall: - for name in ['name','forward','input','output', 'prerouting']: - if name in firewall['ipv6']: - for name_id, name_conf in firewall['ipv6'][name].items(): - if 'jump' in name_conf['default_action'] and 'default_jump_target' not in name_conf: - raise ConfigError('default-action set to jump, but no default-jump-target specified') - if 'default_jump_target' in name_conf: - target = name_conf['default_jump_target'] - if 'jump' not in name_conf['default_action']: - raise ConfigError('default-jump-target defined, but default-action jump needed and it is not defined') - if name_conf['default_jump_target'] == name_id: - raise ConfigError(f'Loop detected on default-jump-target.') - verify_jump_target(firewall, name, target, True, recursive=True) - - if 'rule' in name_conf: - for rule_id, rule_conf in name_conf['rule'].items(): - verify_rule(firewall, name, rule_conf, True) - - #### ZONESSSS + for family in ['ipv4', 'ipv6', 'bridge']: + if family in firewall: + for chain in ['name','forward','input','output', 'prerouting']: + if chain in firewall[family]: + for priority, priority_conf in firewall[family][chain].items(): + if 'jump' in priority_conf['default_action'] and 'default_jump_target' not in priority_conf: + raise ConfigError('default-action set to jump, but no default-jump-target specified') + if 'default_jump_target' in priority_conf: + target = priority_conf['default_jump_target'] + if 'jump' not in priority_conf['default_action']: + raise ConfigError('default-jump-target defined, but default-action jump needed and it is not defined') + if priority_conf['default_jump_target'] == priority: + raise ConfigError(f'Loop detected on default-jump-target.') + if target not in dict_search_args(firewall[family], 'name'): + raise ConfigError(f'Invalid jump-target. Firewall name {target} does not exist on the system') + if 'rule' in priority_conf: + for rule_id, rule_conf in priority_conf['rule'].items(): + verify_rule(firewall, family, chain, priority, rule_id, rule_conf) + local_zone = False zone_interfaces = [] -- cgit v1.2.3