Add tcp-reset as an allowed option for --reject-with.

Resolves #1184

Author: gcoxmoz

REFERENCE.md

@@ -1267,13 +1267,15 @@ Data type: `Optional[Enum['set', 'update', 'rcheck', 'remove', '! set', '! updat
 
 Data type: `Optional[Enum['icmp-net-unreachable', 'icmp-host-unreachable', 'icmp-port-unreachable', 'icmp-proto-unreachable',
                               'icmp-net-prohibited', 'icmp-host-prohibited', 'icmp-admin-prohibited', 'icmp6-no-route', 'no-route',
-                              'icmp6-adm-prohibited', 'adm-prohibited', 'icmp6-addr-unreachable', 'addr-unreach', 'icmp6-port-unreachable']]`
+                              'icmp6-adm-prohibited', 'adm-prohibited', 'icmp6-addr-unreachable', 'addr-unreach', 'icmp6-port-unreachable',
+                              'tcp-reset']]`
 
       When combined with jump => "REJECT" you can specify a different icmp response to be sent back to the packet sender.
       Valid values differ depending on if the protocol is `IPv4` or `IPv6`.
       IPv4 allows: icmp-net-unreachable, icmp-host-unreachable, icmp-port-unreachable, icmp-proto-unreachable, icmp-net-prohibited,
-      icmp-host-prohibited, or icmp-admin-prohibited.
-      IPv6 allows: icmp6-no-route, no-route, icmp6-adm-prohibited, adm-prohibited, icmp6-addr-unreachable, addr-unreach, or icmp6-port-unreachable.
+      icmp-host-prohibited, icmp-admin-prohibited, or tcp-reset.
+      IPv6 allows: icmp6-no-route, no-route, icmp6-adm-prohibited, adm-prohibited, icmp6-addr-unreachable, addr-unreach,
+      icmp6-port-unreachable, or tcp-reset.
 
 ##### `rhitcount`
 

lib/puppet/type/firewall.rb

@@ -1261,13 +1261,15 @@
     reject: {
       type: "Optional[Enum['icmp-net-unreachable', 'icmp-host-unreachable', 'icmp-port-unreachable', 'icmp-proto-unreachable',
                               'icmp-net-prohibited', 'icmp-host-prohibited', 'icmp-admin-prohibited', 'icmp6-no-route', 'no-route',
-                              'icmp6-adm-prohibited', 'adm-prohibited', 'icmp6-addr-unreachable', 'addr-unreach', 'icmp6-port-unreachable']]",
+                              'icmp6-adm-prohibited', 'adm-prohibited', 'icmp6-addr-unreachable', 'addr-unreach', 'icmp6-port-unreachable',
+                              'tcp-reset']]",
       desc: <<-DESC
       When combined with jump => "REJECT" you can specify a different icmp response to be sent back to the packet sender.
       Valid values differ depending on if the protocol is `IPv4` or `IPv6`.
       IPv4 allows: icmp-net-unreachable, icmp-host-unreachable, icmp-port-unreachable, icmp-proto-unreachable, icmp-net-prohibited,
-      icmp-host-prohibited, or icmp-admin-prohibited.
-      IPv6 allows: icmp6-no-route, no-route, icmp6-adm-prohibited, adm-prohibited, icmp6-addr-unreachable, addr-unreach, or icmp6-port-unreachable.
+      icmp-host-prohibited, icmp-admin-prohibited, or tcp-reset.
+      IPv6 allows: icmp6-no-route, no-route, icmp6-adm-prohibited, adm-prohibited, icmp6-addr-unreachable, addr-unreach,
+      icmp6-port-unreachable, or tcp-reset.
       DESC
     },
     set_mark: {

spec/acceptance/firewall_attributes_happy_path_spec.rb

@@ -239,6 +239,12 @@ class { '::firewall': }
             chain     => 'FORWARD',
             table     => 'mangle',
           }
+          firewall { '605 - reject with tcp-reset':
+            proto  => tcp,
+            jump   => reject,
+            reject => 'tcp-reset',
+          }
+
           firewall { '700 - blah-A Test Rule':
             jump       => 'LOG',
             log_prefix => 'FW-A-INPUT: ',
@@ -477,6 +483,10 @@ class { '::firewall': }
       expect(result.stdout).to match(%r{-A FORWARD -p (tcp|6) -m tcp --tcp-flags SYN,RST SYN -m tcpmss --mss 1361:1541 -m comment --comment "604 - set_mss" -j TCPMSS --set-mss 1360})
     end
 
+    it 'tcp-reset is set' do
+      expect(result.stdout).to match(%r{-A INPUT -p (tcp|6) -m comment --comment "605 - reject with tcp-reset" -j REJECT --reject-with tcp-reset})
+    end
+
     it 'clamp_mss_to_pmtu is set' do
       expect(result.stdout).to match(%r{-A FORWARD -p (tcp|6) -m tcp --tcp-flags SYN,RST SYN -m comment --comment "601 - clamp_mss_to_pmtu" -j TCPMSS --clamp-mss-to-pmtu})
     end

spec/acceptance/firewall_attributes_ipv6_happy_path_spec.rb

@@ -217,6 +217,12 @@ class { '::firewall': }
           src_type => ['LOCAL', '! LOCAL'],
           protocol => 'ip6tables',
         }
+        firewall { '621 - reject with tcp-reset':
+          proto    => tcp,
+          jump     => reject,
+          reject   => 'tcp-reset',
+          protocol => 'ip6tables',
+        }
         firewall { '801 - ipt_modules tests':
           proto              => tcp,
           dport              => '8080',
@@ -396,6 +402,10 @@ class { '::firewall': }
       expect(result.stdout).to match(%r{-A INPUT -p (tcp|6) -m addrtype --src-type LOCAL -m addrtype ! --src-type LOCAL -m comment --comment "620 - src_type multiple values" -j ACCEPT})
     end
 
+    it 'tcp-reset is set' do
+      expect(result.stdout).to match(%r{-A INPUT -p (tcp|6) -m comment --comment "621 - reject with tcp-reset" -j REJECT --reject-with tcp-reset})
+    end
+
     it 'all the modules with multiple args is set' do
       expect(result.stdout).to match(%r{-A OUTPUT -p (tcp|6) -m physdev\s+--physdev-in eth0 --physdev-out eth1 --physdev-is-bridged -m iprange --src-range 2001::-2002::\s+--dst-range 2003::-2004:: -m owner --uid-owner (0|root) --gid-owner 404 -m tcp --dport 8080 -m addrtype --src-type LOCAL -m addrtype --dst-type UNICAST -m comment --comment "801 - ipt_modules tests" -j REJECT --reject-with icmp6-port-unreachable}) # rubocop:disable Layout/LineLength
     end