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-rw-r--r--nitrocli/CHANGELOG.md7
-rw-r--r--nitrocli/src/main.rs130
-rw-r--r--nitrocli/src/nitrokey.rs83
3 files changed, 54 insertions, 166 deletions
diff --git a/nitrocli/CHANGELOG.md b/nitrocli/CHANGELOG.md
index bfe1ffa..7ff193a 100644
--- a/nitrocli/CHANGELOG.md
+++ b/nitrocli/CHANGELOG.md
@@ -1,7 +1,10 @@
Unreleased
----------
-- Added `nitrokey` version `0.2.1` as a direct dependency and `nitrokey-sys`
- version `3.4.1` as well as `rand` version `0.4.3` as indirect dependencies
+- Use the `nitrokey` crate for the `open` and `close` commands instead
+ of directly communicating with the Nitrokey device
+ - Added `nitrokey` version `0.2.1` as a direct dependency and
+ `nitrokey-sys` version `3.4.1` as well as `rand` version `0.4.3` as
+ indirect dependencies
0.1.3
diff --git a/nitrocli/src/main.rs b/nitrocli/src/main.rs
index 23370ee..714c573 100644
--- a/nitrocli/src/main.rs
+++ b/nitrocli/src/main.rs
@@ -79,6 +79,8 @@ use std::result;
use std::thread;
use std::time;
+use libnitrokey;
+
use crate::error::Error;
type Result<T> = result::Result<T, Error>;
@@ -91,6 +93,19 @@ const RECV_TRY_COUNT: i8 = 40;
const SEND_RECV_DELAY_MS: u64 = 200;
+/// Create an `error::Error` with an error message of the format `msg: err`.
+fn get_error(msg: &str, err: &libnitrokey::CommandError) -> Error {
+ Error::Error(format!("{}: {:?}", msg, err))
+}
+
+
+/// Connect to a Nitrokey Storage device and return it.
+fn get_storage_device() -> Result<libnitrokey::Storage> {
+ libnitrokey::Storage::connect()
+ .or_else(|_| Err(Error::Error("Nitrokey device not found".to_string())))
+}
+
+
/// Send a HID feature report to the device represented by the given handle.
fn send<P>(handle: &mut libhid::Handle, report: &nitrokey::Report<P>) -> Result<()>
where P: AsRef<[u8]>,
@@ -272,64 +287,35 @@ fn status() -> Result<()> {
}
-/// Poll the nitrokey until it reports to no longer be busy.
-fn wait(handle: &mut libhid::Handle) -> Result<nitrokey::StorageStatus> {
- type Response = nitrokey::Response<nitrokey::StorageResponse>;
-
- loop {
- thread::sleep(time::Duration::from_millis(SEND_RECV_DELAY_MS));
-
- let report = receive::<nitrokey::EmptyPayload>(handle)?;
- let response = AsRef::<Response>::as_ref(&report.data);
- let status = response.data.storage_status;
-
- if status != nitrokey::StorageStatus::Busy &&
- status != nitrokey::StorageStatus::BusyProgressbar {
- return Ok(status);
- }
- }
-}
-
-
/// Open the encrypted volume on the nitrokey.
fn open() -> Result<()> {
- type Response = nitrokey::Response<nitrokey::StorageResponse>;
-
- nitrokey_do(&|handle| {
- let mut retry = 3;
- let mut error_msg: Option<&str> = None;
- loop {
- let passphrase = pinentry::inquire_passphrase(PIN_TYPE, error_msg)?;
- let payload = nitrokey::EnableEncryptedVolumeCommand::new(&passphrase);
- let report = nitrokey::Report::from(payload);
+ let device = get_storage_device()?;
- let report = transmit::<_, nitrokey::EmptyPayload>(handle, &report)?;
- let response = AsRef::<Response>::as_ref(&report.data);
- let mut status = response.data.storage_status;
-
- if status == nitrokey::StorageStatus::WrongPassword {
- pinentry::clear_passphrase(PIN_TYPE)?;
- retry -= 1;
+ let mut retry = 3;
+ let mut error_msg: Option<&str> = None;
+ loop {
+ // TODO: Rethink the usage of String::from_utf8_lossy here. We may
+ // not want to silently modify the password!
+ let passphrase = pinentry::inquire_passphrase(PIN_TYPE, error_msg)?;
+ let passphrase = String::from_utf8_lossy(&passphrase);
+ match device.enable_encrypted_volume(&passphrase) {
+ Ok(()) => return Ok(()),
+ Err(err) => match err {
+ libnitrokey::CommandError::WrongPassword => {
+ pinentry::clear_passphrase(PIN_TYPE)?;
+ retry -= 1;
- if retry > 0 {
- error_msg = Some("Wrong password, please reenter");
- continue;
- }
- let error = "Opening encrypted volume failed: Wrong password";
- return Err(Error::Error(error.to_string()));
- }
- if status == nitrokey::StorageStatus::Busy ||
- status == nitrokey::StorageStatus::BusyProgressbar {
- status = wait(handle)?;
- }
- if status != nitrokey::StorageStatus::Okay && status != nitrokey::StorageStatus::Idle {
- let status = format!("{:?}", status);
- let error = format!("Opening encrypted volume failed: {}", status);
- return Err(Error::Error(error));
- }
- return Ok(());
- }
- })
+ if retry > 0 {
+ error_msg = Some("Wrong password, please reenter");
+ continue;
+ }
+ let error = "Opening encrypted volume failed: Wrong password";
+ return Err(Error::Error(error.to_string()));
+ },
+ err => return Err(get_error("Opening encrypted volume failed", &err)),
+ },
+ };
+ }
}
@@ -340,33 +326,15 @@ extern "C" {
/// Close the previously opened encrypted volume.
fn close() -> Result<()> {
- type Response = nitrokey::Response<nitrokey::StorageResponse>;
-
- nitrokey_do(&|handle| {
- // Flush all filesystem caches to disk. We are mostly interested in
- // making sure that the encrypted volume on the nitrokey we are
- // about to close is not closed while not all data was written to
- // it.
- unsafe { sync() };
-
- let payload = nitrokey::DisableEncryptedVolumeCommand::new();
- let report = nitrokey::Report::from(payload);
-
- let report = transmit::<_, nitrokey::EmptyPayload>(handle, &report)?;
- let response = AsRef::<Response>::as_ref(&report.data);
- let mut status = response.data.storage_status;
-
- if status == nitrokey::StorageStatus::Busy ||
- status == nitrokey::StorageStatus::BusyProgressbar {
- status = wait(handle)?;
- }
- if status != nitrokey::StorageStatus::Okay && status != nitrokey::StorageStatus::Idle {
- let status = format!("{:?}", status);
- let error = format!("Closing encrypted volume failed: {}", status);
- return Err(Error::Error(error));
- }
- Ok(())
- })
+ // Flush all filesystem caches to disk. We are mostly interested in
+ // making sure that the encrypted volume on the nitrokey we are
+ // about to close is not closed while not all data was written to
+ // it.
+ unsafe { sync() };
+
+ get_storage_device()?
+ .disable_encrypted_volume()
+ .map_err(|err| get_error("Closing encrypted volume failed", &err))
}
diff --git a/nitrocli/src/nitrokey.rs b/nitrocli/src/nitrokey.rs
index 64685e2..9f767d6 100644
--- a/nitrocli/src/nitrokey.rs
+++ b/nitrocli/src/nitrokey.rs
@@ -17,7 +17,6 @@
// * along with this program. If not, see <http://www.gnu.org/licenses/>. *
// *************************************************************************
-use std::cmp;
use std::mem;
use crate::crc32::crc;
@@ -41,10 +40,6 @@ pub const VOLUME_ACTIVE_HIDDEN: u8 = 0b100;
#[derive(PartialEq)]
#[repr(u8)]
pub enum Command {
- // The command to enable the encrypted volume.
- EnableEncryptedVolume = 0x20,
- // The command to disable the encrypted volume.
- DisableEncryptedVolume = 0x21,
// Retrieve the device status.
GetDeviceStatus = 0x2E,
}
@@ -183,39 +178,6 @@ macro_rules! defaultCommand {
}
-#[allow(dead_code)]
-#[repr(packed)]
-pub struct EnableEncryptedVolumeCommand {
- command: Command,
- // The kind of password. Unconditionally 'P' because the User PIN is
- // used to enable the encrypted volume.
- kind: u8,
- // The password has a maximum length of twenty characters.
- password: [u8; 20],
- padding: [u8; 38],
-}
-
-
-impl EnableEncryptedVolumeCommand {
- pub fn new(password: &[u8]) -> EnableEncryptedVolumeCommand {
- let mut report = EnableEncryptedVolumeCommand {
- command: Command::EnableEncryptedVolume,
- kind: b'P',
- password: [0; 20],
- padding: [0; 38],
- };
-
- debug_assert!(password.len() <= report.password.len());
-
- let len = cmp::min(report.password.len(), password.len());
- report.password[..len].copy_from_slice(&password[..len]);
- report
- }
-}
-
-defaultPayloadAsRef!(EnableEncryptedVolumeCommand);
-
-defaultCommand!(DisableEncryptedVolumeCommand, DisableEncryptedVolume);
defaultCommand!(DeviceStatusCommand, GetDeviceStatus);
@@ -271,17 +233,6 @@ impl<P> AsRef<[u8]> for Response<P> {
#[repr(packed)]
-pub struct StorageResponse {
- pub padding1: [u8; 13],
- pub command_counter: u8,
- pub last_storage_command: Command,
- pub storage_status: StorageStatus,
- pub progress: u8,
- pub padding2: [u8; 2],
-}
-
-
-#[repr(packed)]
pub struct DeviceStatusResponse {
pub padding0: [u8; 22],
pub magic: u16,
@@ -303,37 +254,3 @@ pub struct DeviceStatusResponse {
pub active_smartcard_id: u32,
pub storage_keys_missing: u8,
}
-
-
-#[cfg(test)]
-mod tests {
- use super::*;
-
- #[test]
- fn encrypted_volume_report() {
- let password = "test42".to_string().into_bytes();
- let report = EnableEncryptedVolumeCommand::new(&password);
- let expected = ['t' as u8, 'e' as u8, 's' as u8, 't' as u8, '4' as u8, '2' as u8, 0u8, 0u8,
- 0u8, 0u8, 0u8, 0u8, 0u8, 0u8, 0u8, 0u8, 0u8, 0u8, 0u8, 0u8];
- assert_eq!(report.password, expected);
- }
-
- #[test]
- #[cfg(debug)]
- #[should_panic(expected = "assertion failed")]
- fn overly_long_password() {
- let password = "012345678912345678901".to_string().into_bytes();
- EnableEncryptedVolumeCommand::new(&password);
- }
-
- #[test]
- fn report_crc() {
- let password = "passphrase".to_string().into_bytes();
- let payload = EnableEncryptedVolumeCommand::new(&password);
- let report = Report::from(payload);
-
- // The expected checksum was computed using the original
- // functionality.
- assert_eq!(report.crc, 0xeeb583c);
- }
-}
generated by cgit v1.2.3 (git 2.46.0) at 2024-11-24 05:02:55 +0000