Add IS-IS "show" commands

Signed-off-by: Renato Westphal <[email protected]>
holo-routing · Sep 24, 2024 · a85aaad · a85aaad
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diff --git a/src/internal_commands.rs b/src/internal_commands.rs
@@ -664,6 +664,77 @@ pub(crate) fn cmd_show_yang_modules(
     Ok(false)
 }
 
+// ===== IS-IS "show" commands =====
+
+const PROTOCOL_ISIS: &str = "ietf-isis:isis";
+const XPATH_ISIS_INTERFACE: &str = "ietf-isis:isis/interfaces/interface";
+const XPATH_ISIS_ADJACENCY: &str = "adjacencies/adjacency";
+const XPATH_ISIS_DATABASE: &str = "ietf-isis:isis/database/levels";
+const XPATH_ISIS_LSP: &str = "lsp";
+
+pub(crate) fn cmd_show_isis_interface(
+    _commands: &Commands,
+    session: &mut Session,
+    mut args: ParsedArgs,
+) -> Result<bool, String> {
+    YangTableBuilder::new(session, DataType::All)
+        .xpath(XPATH_PROTOCOL)
+        .filter_list_key("type", Some(PROTOCOL_ISIS))
+        .column_leaf("Instance", "name")
+        .xpath(XPATH_ISIS_INTERFACE)
+        .filter_list_key("name", get_opt_arg(&mut args, "name"))
+        .column_leaf("Name", "name")
+        .column_leaf("Circuit ID", "circuit-id")
+        .column_leaf("State", "state")
+        .show()?;
+
+    Ok(false)
+}
+
+pub(crate) fn cmd_show_isis_adjacency(
+    _commands: &Commands,
+    session: &mut Session,
+    mut args: ParsedArgs,
+) -> Result<bool, String> {
+    YangTableBuilder::new(session, DataType::All)
+        .xpath(XPATH_PROTOCOL)
+        .filter_list_key("type", Some(PROTOCOL_ISIS))
+        .column_leaf("Instance", "name")
+        .xpath(XPATH_ISIS_INTERFACE)
+        .filter_list_key("name", get_opt_arg(&mut args, "name"))
+        .column_leaf("Interface", "name")
+        .xpath(XPATH_ISIS_ADJACENCY)
+        .column_leaf("System ID", "neighbor-sysid")
+        .column_leaf("SNPA", "neighbor-snpa")
+        .column_leaf("Level", "usage")
+        .column_leaf("State", "state")
+        .column_leaf("Holdtime", "hold-timer")
+        .show()?;
+
+    Ok(false)
+}
+
+pub(crate) fn cmd_show_isis_database(
+    _commands: &Commands,
+    session: &mut Session,
+    _args: ParsedArgs,
+) -> Result<bool, String> {
+    YangTableBuilder::new(session, DataType::All)
+        .xpath(XPATH_PROTOCOL)
+        .filter_list_key("type", Some(PROTOCOL_ISIS))
+        .column_leaf("Instance", "name")
+        .xpath(XPATH_ISIS_DATABASE)
+        .column_leaf("Level", "level")
+        .xpath(XPATH_ISIS_LSP)
+        .column_leaf("LSP ID", "lsp-id")
+        .column_leaf("Sequence", "sequence")
+        .column_leaf("Checksum", "checksum")
+        .column_leaf("Lifetime", "remaining-lifetime")
+        .show()?;
+
+    Ok(false)
+}
+
 // ===== OSPF "show" commands =====
 
 const PROTOCOL_OSPFV2: &str = "ietf-ospf:ospfv2";

diff --git a/src/internal_commands.xml b/src/internal_commands.xml
@@ -29,6 +29,14 @@
       <token name="yang" help="YANG information.">
         <token name="modules" help="Show loaded YANG modules." cmd="cmd_show_yang_modules"/>
       </token>
+      <!-- IS-IS show commands -->
+      <token name="isis" argument="protocol" help="IS-IS information">
+        <token name="interface" help="Interface information" cmd="cmd_show_isis_interface">
+          <token name="NAME" help="Interface name" argument="name" kind="string" cmd="cmd_show_isis_interface"/>
+        </token>
+	<token name="database" help="Link state database" cmd="cmd_show_isis_database"/>
+	<token name="adjacency" help="Adjacency information" cmd="cmd_show_isis_adjacency"/>
+      </token>
       <!-- OSPF show commands -->
       <token name="ospfv2" argument="protocol" help="OSPFv2 information">
         <token name="interface" help="Interface information" cmd="cmd_show_ospf_interface">

diff --git a/src/token_xml.rs b/src/token_xml.rs
@@ -83,6 +83,9 @@ fn parse_tag_token(
         "cmd_show_config_changes" => internal_commands::cmd_show_config_changes,
         "cmd_show_state" => internal_commands::cmd_show_state,
         "cmd_show_yang_modules" => internal_commands::cmd_show_yang_modules,
+        "cmd_show_isis_interface" => internal_commands::cmd_show_isis_interface,
+        "cmd_show_isis_adjacency" => internal_commands::cmd_show_isis_adjacency,
+        "cmd_show_isis_database" => internal_commands::cmd_show_isis_database,
         "cmd_show_ospf_interface" => internal_commands::cmd_show_ospf_interface,
         "cmd_show_ospf_interface_detail" => {
             internal_commands::cmd_show_ospf_interface_detail