X-Git-Url: https://git.openstreetmap.org./chef.git/blobdiff_plain/7c110b4ca4633db65e1ed117ce20fc150ea68b0e..d51169137e4f79bbe3aba52be72071d11dd27127:/cookbooks/networking/templates/default/nftables.conf.erb diff --git a/cookbooks/networking/templates/default/nftables.conf.erb b/cookbooks/networking/templates/default/nftables.conf.erb index 05984ac3e..7273cff5e 100644 --- a/cookbooks/networking/templates/default/nftables.conf.erb +++ b/cookbooks/networking/templates/default/nftables.conf.erb @@ -1,8 +1,8 @@ #!/usr/sbin/nft -f -<%- unless @interfaces.empty? %> +<% unless @interfaces.empty? -%> define external-interfaces = { <%= @interfaces.sort.uniq.join(", ") %> } -<%- end %> +<% end -%> define ip-private-addresses = { 0.0.0.0, 10.0.0.0/8, 127.0.0.0/8, 169.254.0.0/16, 172.16.0.0/12, 192.0.2.0/24, 192.168.0.0/16 } define ip-multicast-addresses = { 224.0.0.0/4 } @@ -12,16 +12,16 @@ define ip6-multicast-addresses = { ff00::/8 } table inet chef-filter { set ip-osm-addresses { type ipv4_addr -<%- unless Array(@hosts["inet"]).empty? %> - elements = { <%= Array(@hosts["inet"]).sort.join(", ") %> } -<%- end %> +<% unless Array(@hosts[:inet]).empty? -%> + elements = { <%= Array(@hosts[:inet]).sort.join(", ") %> } +<% end -%> } set ip6-osm-addresses { type ipv6_addr -<%- unless Array(@hosts["inet"]).empty? %> - elements = { <%= Array(@hosts["inet6"]).sort.join(", ") %> } -<%- end %> +<% unless Array(@hosts[:inet6]).empty? -%> + elements = { <%= Array(@hosts[:inet6]).sort.join(", ") %> } +<% end -%> } set ip-blocklist { @@ -46,27 +46,25 @@ table inet chef-filter { timeout 120s } -<%- node[:networking][:firewall][:sets].each do |set| %> - set <%= set %> { -<%- if set.end_with?("-ip") %> - type ipv4_addr -<%- elsif set.end_with?("-ip6") %> - type ipv6_addr -<%- end %> - flags dynamic -<%- unless set.start_with?("connlimit-") %> - timeout 120s -<%- end %> +<% node[:networking][:firewall][:sets].each do |set| -%> + set <%= set[:name] %> { + type <%= set[:type] %> +<% if set[:flags] -%> + flags <%= set[:flags].join(", ") %> +<% end -%> +<% if set[:timeout] -%> + timeout <%= set[:timeout] %>s +<% end -%> } -<%- end %> +<% end -%> -<%- node[:networking][:firewall][:helpers].each do |helper| %> +<% node[:networking][:firewall][:helpers].each do |helper| -%> ct helper <%= helper[:name] %> { type "<%= helper[:helper] %>" protocol <%= helper[:protocol] %> } -<%- end %> +<% end -%> chain log-and-drop { limit rate 1/second log drop @@ -78,11 +76,11 @@ table inet chef-filter { } chain incoming { -<%- if node[:networking][:firewall][:allowlist].empty? %> +<% if node[:networking][:firewall][:allowlist].empty? -%> ip saddr { $ip-private-addresses, $ip-multicast-addresses } jump log-and-drop -<%- else %> +<% else -%> ip saddr { $ip-private-addresses, $ip-multicast-addresses } ip saddr != { <%= node[:networking][:firewall][:allowlist].sort.join(", ") %> } jump log-and-drop -<%- end %> +<% end -%> ip6 saddr { $ip6-private-addresses, $ip6-multicast-addresses } jump log-and-drop ip saddr @ip-blocklist jump log-and-drop @@ -107,24 +105,24 @@ table inet chef-filter { tcp flags & (fin|psh|ack) == fin|psh jump log-and-drop tcp sport 0 tcp flags & (fin|syn|rst|ack) == syn jump log-and-drop -<%- node[:networking][:firewall][:incoming].uniq.each do |rule| %> +<% node[:networking][:firewall][:incoming].uniq.each do |rule| -%> <%= rule %> -<%- end %> +<% end -%> jump log-and-drop } chain outgoing { -<%- if node[:networking][:firewall][:allowlist].empty? %> +<% if node[:networking][:firewall][:allowlist].empty? -%> ip daddr { $ip-private-addresses } jump log-and-drop -<%- else %> +<% else -%> ip daddr { $ip-private-addresses } ip daddr != { <%= node[:networking][:firewall][:allowlist].sort.join(", ") %> } jump log-and-drop -<%- end %> +<% end -%> ip6 daddr { $ip6-private-addresses } jump log-and-drop -<%- node[:networking][:firewall][:outgoing].each do |rule| %> +<% node[:networking][:firewall][:outgoing].each do |rule| -%> <%= rule %> -<%- end %> +<% end -%> accept } @@ -132,9 +130,9 @@ table inet chef-filter { chain input { type filter hook input priority filter; -<%- unless @interfaces.empty? %> +<% unless @interfaces.empty? -%> iifname { $external-interfaces } jump incoming -<%- end %> +<% end -%> accept } @@ -142,10 +140,10 @@ table inet chef-filter { chain forward { type filter hook forward priority filter; -<%- unless @interfaces.empty? %> +<% unless @interfaces.empty? -%> iifname { $external-interfaces } jump incoming oifname { $external-interfaces } jump outgoing -<%- end %> +<% end -%> accept } @@ -153,24 +151,24 @@ table inet chef-filter { chain output { type filter hook output priority filter; -<%- unless @interfaces.empty? %> +<% unless @interfaces.empty? -%> oifname { $external-interfaces } jump outgoing -<%- end %> +<% end -%> accept } } -<%- if node[:roles].include?("gateway") %> +<% if node[:roles].include?("gateway") -%> table ip chef-nat { chain postrouting { type nat hook postrouting priority srcnat; -<%- node.interfaces(:role => :external, :family => :inet).each do |external| %> -<%- node.interfaces(:role => :internal, :family => :inet).each do |internal| %> - oifname { <%= external[:interface] %> } ip saddr { <%= internal[:network] %>/<%= internal[:prefix] %> } snat <%= external[:address] %> -<%- end %> -<%- end %> +<% node.interfaces(:role => :external).each do |external| -%> +<% node.ipaddresses(:role => :internal, :family => :inet).each do |internal| -%> + oifname { <%= external[:interface] %> } ip saddr { <%= internal.subnet %> } snat <%= external[:inet][:address] %> +<% end -%> +<% end -%> } } -<%- end %> +<% end -%>