Implement get_firmware_version (probably YubiKey specific)

openpgp-card-sequoia/src/card.rs

@@ -267,6 +267,11 @@ impl<'a> Open<'a> {
         self.card_app.get_algo_info()
     }
 
+    /// Firmware Version, YubiKey specific (?)
+    pub fn firmware_version(&mut self) -> Result<Vec<u8>> {
+        self.card_app.get_firmware_version()
+    }
+
     // ----------
 
     pub fn get_pub_key(

openpgp-card/src/apdu/commands.rs

@@ -66,6 +66,11 @@ pub(crate) fn get_algo_list() -> Command {
     get_data(&[0xFA])
 }
 
+/// GET Firmware Version (yubikey specific?)
+pub(crate) fn get_firmware_version() -> Command {
+    Command::new(0x00, 0xF1, 0x00, 0x00, vec![])
+}
+
 /// GET RESPONSE
 pub(crate) fn get_response() -> Command {
     Command::new(0x00, 0xC0, 0x00, 0x00, vec![])

openpgp-card/src/card_app.rs

@@ -233,6 +233,17 @@ impl CardApp {
         Ok(Some(ai))
     }
 
+    /// Firmware Version (YubiKey specific (?))
+    pub fn get_firmware_version(&mut self) -> Result<Vec<u8>> {
+        let resp = apdu::send_command(
+            self.card_client(),
+            commands::get_firmware_version(),
+            true,
+        )?;
+
+        Ok(resp.data()?.into())
+    }
+
     /// SELECT DATA "select a DO in the current template"
     /// (e.g. for cardholder certificate)
     pub fn select_data(

tools/src/bin/opgpcard/main.rs

@@ -283,11 +283,20 @@ fn print_status(ident: Option<String>, verbose: bool) -> Result<()> {
     // FIXME: add General key info; login data; KDF setting
 
     if verbose {
-        if let Some(ai) = open.algorithm_information()? {
+        // Algorithm information (list of supported algorithms)
+        if let Ok(Some(ai)) = open.algorithm_information() {
             println!();
             println!("Supported algorithms:");
             println!("{}", ai);
         }
+
+        // YubiKey specific (?) firmware version
+        if let Ok(ver) = open.firmware_version() {
+            let ver =
+                ver.iter().map(u8::to_string).collect::<Vec<_>>().join(".");
+
+            println!("Firmware Version: {}", ver);
+        }
     }
 
     Ok(())