Drop tcp vs tcp:syn distinction

[chef.git] / cookbooks / networking / resources / firewall_rule.rb

diff --git a/cookbooks/networking/resources/firewall_rule.rb b/cookbooks/networking/resources/firewall_rule.rb
index e72a3df7883d7da389dc50c3302f77dfdc087431..6e6c72585a84923ebf3c354e419f2be40a08045d 100644 (file)
--- a/cookbooks/networking/resources/firewall_rule.rb
+++ b/cookbooks/networking/resources/firewall_rule.rb
@@ -29,8 +29,8 @@ property :family, :kind_of => [String, Symbol]
 property :source, :kind_of => String, :required => true
 property :dest, :kind_of => String, :required => true
 property :proto, :kind_of => String, :required => true
-property :dest_ports, :kind_of => [String, Integer], :default => "-"
-property :source_ports, :kind_of => [String, Integer], :default => "-"
+property :dest_ports, :kind_of => [String, Integer, Array]
+property :source_ports, :kind_of => [String, Integer, Array]
 property :rate_limit, :kind_of => String, :default => "-"
 property :connection_limit, :kind_of => [String, Integer], :default => "-"
 property :helper, :kind_of => String, :default => "-"
@@ -51,44 +51,13 @@ end
 
 action_class do
   def add_rule(action)
-    if node[:networking][:firewall][:engine] == "shorewall"
-      add_shorewall_rule(action)
-    elsif node[:networking][:firewall][:engine] == "nftables"
-      if new_resource.family.nil?
-        add_nftables_rule(action, "inet")
-        add_nftables_rule(action, "inet6")
-      elsif new_resource.family.to_s == "inet"
-        add_nftables_rule(action, "inet")
-      elsif new_resource.family.to_s == "inet6"
-        add_nftables_rule(action, "inet6")
-      end
-    end
-  end
-
-  def add_shorewall_rule(action)
-    rule = {
-      :action => action.to_s.upcase,
-      :source => new_resource.source,
-      :dest => new_resource.dest,
-      :proto => new_resource.proto,
-      :dest_ports => new_resource.dest_ports.to_s,
-      :source_ports => new_resource.source_ports.to_s,
-      :rate_limit => new_resource.rate_limit,
-      :connection_limit => new_resource.connection_limit.to_s,
-      :helper => new_resource.helper
-    }
-
     if new_resource.family.nil?
-      node.default[:networking][:firewall][:inet] << rule
-      node.default[:networking][:firewall][:inet6] << rule
+      add_nftables_rule(action, "inet")
+      add_nftables_rule(action, "inet6")
     elsif new_resource.family.to_s == "inet"
-      node.default[:networking][:firewall][:inet] << rule
+      add_nftables_rule(action, "inet")
     elsif new_resource.family.to_s == "inet6"
-      node.default[:networking][:firewall][:inet6] << rule
-    else
-      log "Unsupported network family" do
-        level :error
-      end
+      add_nftables_rule(action, "inet6")
     end
   end
 
@@ -100,21 +69,18 @@ action_class do
          when "inet6" then "ip6"
          end
 
-    proto = case new_resource.proto
-            when "udp" then "udp"
-            when "tcp", "tcp:syn" then "tcp"
-            end
+    proto = new_resource.proto
 
-    if new_resource.source_ports != "-"
-      rule << "#{proto} sport { #{new_resource.source_ports} }"
+    if new_resource.source_ports
+      rule << "#{proto} sport { #{nftables_source_ports} }"
     end
 
-    if new_resource.dest_ports != "-"
-      rule << "#{proto} dport { #{new_resource.dest_ports} }"
+    if new_resource.dest_ports
+      rule << "#{proto} dport { #{nftables_dest_ports} }"
     end
 
     if new_resource.source == "osm"
-      rule << "#{ip} saddr { $#{ip}-osm-addresses }"
+      rule << "#{ip} saddr @#{ip}-osm-addresses"
     elsif new_resource.source =~ /^net:(.*)$/
       addresses = Regexp.last_match(1).split(",").join(", ")
 
@@ -122,29 +88,31 @@ action_class do
     end
 
     if new_resource.dest == "osm"
-      rule << "#{ip} daddr $#{ip}-osm-addresses"
+      rule << "#{ip} daddr @#{ip}-osm-addresses"
     elsif new_resource.dest =~ /^net:(.*)$/
       addresses = Regexp.last_match(1).split(",").join(", ")
 
       rule << "#{ip} daddr { #{addresses} }"
     end
 
-    if new_resource.proto == "tcp:syn"
-      rule << "ct state new"
-    end
+    rule << "ct state new" if new_resource.proto == "tcp"
 
     if new_resource.connection_limit != "-"
-      rule << "ct count #{new_resource.connection_limit}"
+      set = "connlimit-#{new_resource.rule}-#{ip}"
+
+      node.default[:networking][:firewall][:sets] << set
+
+      rule << "add @#{set} { #{ip} saddr ct count #{new_resource.connection_limit} }"
     end
 
     if new_resource.rate_limit =~ %r{^s:(\d+)/sec:(\d+)$}
-      set = "#{new_resource.rule}-#{ip}"
+      set = "ratelimit-#{new_resource.rule}-#{ip}"
       rate = Regexp.last_match(1)
       burst = Regexp.last_match(2)
 
       node.default[:networking][:firewall][:sets] << set
 
-      rule << "add @#{set} { #{ip} saddr limit rate #{rate}/second burst #{burst} packets }"
+      rule << "update @#{set} { #{ip} saddr limit rate #{rate}/second burst #{burst} packets }"
     end
 
     rule << case action
@@ -159,4 +127,12 @@ action_class do
       node.default[:networking][:firewall][:incoming] << rule.join(" ")
     end
   end
+
+  def nftables_source_ports
+    Array(new_resource.source_ports).map(&:to_s).join(",")
+  end
+
+  def nftables_dest_ports
+    Array(new_resource.dest_ports).map(&:to_s).join(",")
+  end
 end