From 1772c0a7232789e6eeb0caa78fe630fab899522d Mon Sep 17 00:00:00 2001
From: Nicolas Fort <nicolasfort1988@gmail.com>
Date: Thu, 7 Sep 2023 20:30:50 +0000
Subject: T4072: add firewall bridge filtering. First implementation only
 applies for forward chain and few matchers. Should be extended in the future.

---
 interface-definitions/firewall.xml.in              |  9 ++++
 .../include/firewall/action-l2.xml.i               | 37 ++++++++++++++
 .../include/firewall/action.xml.i                  |  8 ++-
 .../include/firewall/bridge-custom-name.xml.i      | 39 +++++++++++++++
 .../include/firewall/bridge-hook-forward.xml.i     | 34 +++++++++++++
 .../include/firewall/common-rule-bridge.xml.i      | 57 ++++++++++++++++++++++
 .../include/firewall/default-action-bridge.xml.i   | 34 +++++++++++++
 .../include/firewall/default-action.xml.i          |  8 ++-
 .../include/firewall/match-vlan.xml.i              | 41 ++++++++++++++++
 9 files changed, 263 insertions(+), 4 deletions(-)
 create mode 100644 interface-definitions/include/firewall/action-l2.xml.i
 create mode 100644 interface-definitions/include/firewall/bridge-custom-name.xml.i
 create mode 100644 interface-definitions/include/firewall/bridge-hook-forward.xml.i
 create mode 100644 interface-definitions/include/firewall/common-rule-bridge.xml.i
 create mode 100644 interface-definitions/include/firewall/default-action-bridge.xml.i
 create mode 100644 interface-definitions/include/firewall/match-vlan.xml.i

(limited to 'interface-definitions')

diff --git a/interface-definitions/firewall.xml.in b/interface-definitions/firewall.xml.in
index 127f4b7e7..8e462f3eb 100644
--- a/interface-definitions/firewall.xml.in
+++ b/interface-definitions/firewall.xml.in
@@ -284,6 +284,15 @@
           </tagNode>
         </children>
       </node>
+      <node name="bridge">
+        <properties>
+          <help>Bridge firewall</help>
+        </properties>
+        <children>
+          #include <include/firewall/bridge-hook-forward.xml.i>
+          #include <include/firewall/bridge-custom-name.xml.i>
+        </children>
+      </node>
       <node name="ipv4">
         <properties>
           <help>IPv4 firewall</help>
diff --git a/interface-definitions/include/firewall/action-l2.xml.i b/interface-definitions/include/firewall/action-l2.xml.i
new file mode 100644
index 000000000..84af576c8
--- /dev/null
+++ b/interface-definitions/include/firewall/action-l2.xml.i
@@ -0,0 +1,37 @@
+<!-- include start from firewall/action.xml.i -->
+<leafNode name="action">
+  <properties>
+    <help>Rule action</help>
+    <completionHelp>
+      <list>accept continue jump return drop queue</list>
+    </completionHelp>
+    <valueHelp>
+      <format>accept</format>
+      <description>Accept matching entries</description>
+    </valueHelp>
+    <valueHelp>
+      <format>continue</format>
+      <description>Continue parsing next rule</description>
+    </valueHelp>
+    <valueHelp>
+      <format>jump</format>
+      <description>Jump to another chain</description>
+    </valueHelp>
+    <valueHelp>
+      <format>return</format>
+      <description>Return from the current chain and continue at the next rule of the last chain</description>
+    </valueHelp>
+    <valueHelp>
+      <format>drop</format>
+      <description>Drop matching entries</description>
+    </valueHelp>
+    <valueHelp>
+      <format>queue</format>
+      <description>Enqueue packet to userspace</description>
+    </valueHelp>
+    <constraint>
+      <regex>(accept|continue|jump|return|drop|queue)</regex>
+    </constraint>
+  </properties>
+</leafNode>
+<!-- include end -->
diff --git a/interface-definitions/include/firewall/action.xml.i b/interface-definitions/include/firewall/action.xml.i
index 7c6e33839..9391a7bee 100644
--- a/interface-definitions/include/firewall/action.xml.i
+++ b/interface-definitions/include/firewall/action.xml.i
@@ -3,12 +3,16 @@
   <properties>
     <help>Rule action</help>
     <completionHelp>
-      <list>accept jump reject return drop queue</list>
+      <list>accept continue jump reject return drop queue</list>
     </completionHelp>
     <valueHelp>
       <format>accept</format>
       <description>Accept matching entries</description>
     </valueHelp>
+    <valueHelp>
+      <format>continue</format>
+      <description>Continue parsing next rule</description>
+    </valueHelp>
     <valueHelp>
       <format>jump</format>
       <description>Jump to another chain</description>
@@ -30,7 +34,7 @@
       <description>Enqueue packet to userspace</description>
     </valueHelp>
     <constraint>
-      <regex>(accept|jump|reject|return|drop|queue)</regex>
+      <regex>(accept|continue|jump|reject|return|drop|queue)</regex>
     </constraint>
   </properties>
 </leafNode>
diff --git a/interface-definitions/include/firewall/bridge-custom-name.xml.i b/interface-definitions/include/firewall/bridge-custom-name.xml.i
new file mode 100644
index 000000000..a85fd5a19
--- /dev/null
+++ b/interface-definitions/include/firewall/bridge-custom-name.xml.i
@@ -0,0 +1,39 @@
+<!-- include start from firewall/bridge-custom-name.xml.i -->
+<tagNode name="name">
+  <properties>
+    <help>Bridge custom firewall</help>
+    <constraint>
+      <regex>[a-zA-Z0-9][\w\-\.]*</regex>
+    </constraint>
+  </properties>
+  <children>
+    #include <include/firewall/default-action.xml.i>
+    #include <include/firewall/enable-default-log.xml.i>
+    #include <include/generic-description.xml.i>
+    <leafNode name="default-jump-target">
+      <properties>
+        <help>Set jump target. Action jump must be defined in default-action to use this setting</help>
+        <completionHelp>
+          <path>firewall bridge name</path>
+        </completionHelp>
+      </properties>
+    </leafNode>
+    <tagNode name="rule">
+      <properties>
+        <help>Bridge Firewall forward filter rule number</help>
+        <valueHelp>
+          <format>u32:1-999999</format>
+          <description>Number for this firewall rule</description>
+        </valueHelp>
+        <constraint>
+          <validator name="numeric" argument="--range 1-999999"/>
+        </constraint>
+        <constraintErrorMessage>Firewall rule number must be between 1 and 999999</constraintErrorMessage>
+      </properties>
+      <children>
+        #include <include/firewall/common-rule-bridge.xml.i>
+      </children>
+    </tagNode>
+  </children>
+</tagNode>
+<!-- include end -->
\ No newline at end of file
diff --git a/interface-definitions/include/firewall/bridge-hook-forward.xml.i b/interface-definitions/include/firewall/bridge-hook-forward.xml.i
new file mode 100644
index 000000000..23d757070
--- /dev/null
+++ b/interface-definitions/include/firewall/bridge-hook-forward.xml.i
@@ -0,0 +1,34 @@
+<!-- include start from firewall/bridge-hook-forward.xml.i -->
+<node name="forward">
+  <properties>
+    <help>Bridge forward firewall</help>
+  </properties>
+  <children>
+    <node name="filter">
+      <properties>
+        <help>Bridge firewall forward filter</help>
+      </properties>
+      <children>
+        #include <include/firewall/default-action-base-chains.xml.i>
+        #include <include/generic-description.xml.i>
+        <tagNode name="rule">
+          <properties>
+            <help>Bridge Firewall forward filter rule number</help>
+            <valueHelp>
+              <format>u32:1-999999</format>
+              <description>Number for this firewall rule</description>
+            </valueHelp>
+            <constraint>
+              <validator name="numeric" argument="--range 1-999999"/>
+            </constraint>
+            <constraintErrorMessage>Firewall rule number must be between 1 and 999999</constraintErrorMessage>
+          </properties>
+          <children>
+            #include <include/firewall/common-rule-bridge.xml.i>
+          </children>
+        </tagNode>
+      </children>
+    </node>
+  </children>
+</node>
+<!-- include end -->
\ No newline at end of file
diff --git a/interface-definitions/include/firewall/common-rule-bridge.xml.i b/interface-definitions/include/firewall/common-rule-bridge.xml.i
new file mode 100644
index 000000000..381e04b1e
--- /dev/null
+++ b/interface-definitions/include/firewall/common-rule-bridge.xml.i
@@ -0,0 +1,57 @@
+<!-- include start from firewall/common-rule-bridge.xml.i -->
+#include <include/firewall/action-l2.xml.i>
+#include <include/firewall/nft-queue.xml.i>
+<node name="destination">
+  <properties>
+    <help>Destination parameters</help>
+  </properties>
+  <children>
+    #include <include/firewall/mac-address.xml.i>
+  </children>
+</node>
+<leafNode name="disable">
+  <properties>
+    <help>Option to disable firewall rule</help>
+    <valueless/>
+  </properties>
+</leafNode>
+<leafNode name="jump-target">
+  <properties>
+    <help>Set jump target. Action jump must be defined to use this setting</help>
+    <completionHelp>
+      <path>firewall bridge name</path>
+    </completionHelp>
+  </properties>
+</leafNode>
+<leafNode name="log">
+  <properties>
+    <help>Option to log packets matching rule</help>
+    <completionHelp>
+      <list>enable disable</list>
+    </completionHelp>
+    <valueHelp>
+      <format>enable</format>
+      <description>Enable log</description>
+    </valueHelp>
+    <valueHelp>
+      <format>disable</format>
+      <description>Disable log</description>
+    </valueHelp>
+    <constraint>
+      <regex>(enable|disable)</regex>
+    </constraint>
+  </properties>
+</leafNode>
+#include <include/firewall/rule-log-options.xml.i>
+<node name="source">
+  <properties>
+    <help>Source parameters</help>
+  </properties>
+  <children>
+    #include <include/firewall/mac-address.xml.i>
+  </children>
+</node>
+#include <include/firewall/inbound-interface.xml.i>
+#include <include/firewall/outbound-interface.xml.i>
+#include <include/firewall/match-vlan.xml.i>
+<!-- include end -->
\ No newline at end of file
diff --git a/interface-definitions/include/firewall/default-action-bridge.xml.i b/interface-definitions/include/firewall/default-action-bridge.xml.i
new file mode 100644
index 000000000..858c7aeeb
--- /dev/null
+++ b/interface-definitions/include/firewall/default-action-bridge.xml.i
@@ -0,0 +1,34 @@
+<!-- include start from firewall/default-action.xml.i -->
+<leafNode name="default-action">
+  <properties>
+    <help>Default-action for rule-set</help>
+    <completionHelp>
+      <list>drop jump return accept continue</list>
+    </completionHelp>
+    <valueHelp>
+      <format>drop</format>
+      <description>Drop if no prior rules are hit</description>
+    </valueHelp>
+    <valueHelp>
+      <format>jump</format>
+      <description>Jump to another chain if no prior rules are hit</description>
+    </valueHelp>
+    <valueHelp>
+      <format>return</format>
+      <description>Return from the current chain and continue at the next rule of the last chain</description>
+    </valueHelp>
+    <valueHelp>
+      <format>accept</format>
+      <description>Accept if no prior rules are hit</description>
+    </valueHelp>
+    <valueHelp>
+      <format>continue</format>
+      <description>Continue parsing next rule</description>
+    </valueHelp>
+    <constraint>
+      <regex>(drop|jump|return|accept|continue)</regex>
+    </constraint>
+  </properties>
+  <defaultValue>drop</defaultValue>
+</leafNode>
+<!-- include end -->
diff --git a/interface-definitions/include/firewall/default-action.xml.i b/interface-definitions/include/firewall/default-action.xml.i
index 80efaf335..53a161495 100644
--- a/interface-definitions/include/firewall/default-action.xml.i
+++ b/interface-definitions/include/firewall/default-action.xml.i
@@ -3,7 +3,7 @@
   <properties>
     <help>Default-action for rule-set</help>
     <completionHelp>
-      <list>drop jump reject return accept</list>
+      <list>drop jump reject return accept continue</list>
     </completionHelp>
     <valueHelp>
       <format>drop</format>
@@ -25,8 +25,12 @@
       <format>accept</format>
       <description>Accept if no prior rules are hit</description>
     </valueHelp>
+    <valueHelp>
+      <format>continue</format>
+      <description>Continue parsing next rule</description>
+    </valueHelp>
     <constraint>
-      <regex>(drop|jump|reject|return|accept)</regex>
+      <regex>(drop|jump|reject|return|accept|continue)</regex>
     </constraint>
   </properties>
   <defaultValue>drop</defaultValue>
diff --git a/interface-definitions/include/firewall/match-vlan.xml.i b/interface-definitions/include/firewall/match-vlan.xml.i
new file mode 100644
index 000000000..44ad02c99
--- /dev/null
+++ b/interface-definitions/include/firewall/match-vlan.xml.i
@@ -0,0 +1,41 @@
+<!-- include start from firewall/match-vlan.xml.i -->
+<node name="vlan">
+  <properties>
+    <help>VLAN parameters</help>
+  </properties>
+  <children>
+    <leafNode name="id">
+      <properties>
+        <help>Vlan id</help>
+        <valueHelp>
+          <format>u32:0-4096</format>
+          <description>Vlan id</description>
+        </valueHelp>
+        <valueHelp>
+          <format>&lt;start-end&gt;</format>
+          <description>Vlan id range to match</description>
+        </valueHelp>
+        <constraint>
+          <validator name="numeric" argument="--allow-range --range 0-4095"/>
+        </constraint>
+      </properties>
+    </leafNode>
+    <leafNode name="priority">
+      <properties>
+        <help>Vlan priority(pcp)</help>
+        <valueHelp>
+          <format>u32:0-7</format>
+          <description>Vlan priority</description>
+        </valueHelp>
+        <valueHelp>
+          <format>&lt;start-end&gt;</format>
+          <description>Vlan priority range to match</description>
+        </valueHelp>
+        <constraint>
+          <validator name="numeric" argument="--allow-range --range 0-7"/>
+        </constraint>
+      </properties>
+    </leafNode>
+  </children>
+</node>
+<!-- include end -->
\ No newline at end of file
-- 
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