Send HID feature report to open/close the encrypted volume

With this change we assemble a HID feature report and send it to the
nitrokey device. Feature reports are the objects used for sending
commands to the nitrokey. We create two different reports for
opening and closing of the encrypted volume.

1 files changed, 11 insertions, 2 deletions

diff --git a/nitrocli/src/main.rs b/nitrocli/src/main.rs
index bdbfe37..700204d 100644
--- a/nitrocli/src/main.rs
+++ b/nitrocli/src/main.rs
@@ -26,8 +26,10 @@
 extern crate hid as libhid;
 
 
+mod crc32;
 mod error;
 mod nitrokey;
+mod pinentry;
 
 use error::Error;
 use std::process;
@@ -54,7 +56,11 @@ fn nitrokey_do(function: &NitroFunc) -> Result<()> {
 /// Open the encrypted volume on the nitrokey.
 fn open() -> Result<()> {
   return nitrokey_do(&|handle| {
-    println!("Found nitrokey. Opening encrypted volume...");
+    let passphrase = pinentry::inquire_passphrase()?;
+    let payload = nitrokey::EnableEncryptedVolumeCommand::new(&passphrase);
+    let report = nitrokey::Report::from(payload);
+
+    handle.feature().send_to(0, report.as_ref())?;
     return Ok(());
   });
 }
@@ -63,7 +69,10 @@ fn open() -> Result<()> {
 /// Close the previously opened encrypted volume.
 fn close() -> Result<()> {
   return nitrokey_do(&|handle| {
-    println!("Found nitrokey. Closing encrypted volume...");
+    let payload = nitrokey::DisableEncryptedVolumeCommand::new();
+    let report = nitrokey::Report::from(payload);
+
+    handle.feature().send_to(0, report.as_ref())?;
     return Ok(());
   });
 }