diff options
Diffstat (limited to 'src/pws.rs')
-rw-r--r-- | src/pws.rs | 164 |
1 files changed, 86 insertions, 78 deletions
@@ -1,10 +1,12 @@ +// Copyright (C) 2018-2019 Robin Krahl <robin.krahl@ireas.org> +// SPDX-License-Identifier: MIT + use libc; use nitrokey_sys; use crate::device::{Device, DeviceWrapper, Pro, Storage}; -use crate::util::{ - get_command_result, get_cstring, get_last_error, result_from_string, CommandError, -}; +use crate::error::{CommandError, Error}; +use crate::util::{get_command_result, get_cstring, get_last_error, result_from_string}; /// The number of slots in a [`PasswordSafe`][]. /// @@ -30,9 +32,9 @@ pub const SLOT_COUNT: u8 = 16; /// /// ```no_run /// use nitrokey::{Device, GetPasswordSafe, PasswordSafe}; -/// # use nitrokey::CommandError; +/// # use nitrokey::Error; /// -/// fn use_password_safe(pws: &PasswordSafe) -> Result<(), CommandError> { +/// fn use_password_safe(pws: &PasswordSafe) -> Result<(), Error> { /// let name = pws.get_slot_name(0)?; /// let login = pws.get_slot_login(0)?; /// let password = pws.get_slot_login(0)?; @@ -40,10 +42,12 @@ pub const SLOT_COUNT: u8 = 16; /// Ok(()) /// } /// -/// # fn try_main() -> Result<(), CommandError> { -/// let device = nitrokey::connect()?; +/// # fn try_main() -> Result<(), Error> { +/// let mut manager = nitrokey::take()?; +/// let mut device = manager.connect()?; /// let pws = device.get_password_safe("123456")?; /// use_password_safe(&pws); +/// drop(pws); /// device.lock()?; /// # Ok(()) /// # } @@ -53,8 +57,9 @@ pub const SLOT_COUNT: u8 = 16; /// [`get_password_safe`]: trait.GetPasswordSafe.html#method.get_password_safe /// [`lock`]: trait.Device.html#method.lock /// [`GetPasswordSafe`]: trait.GetPasswordSafe.html -pub struct PasswordSafe<'a> { - _device: &'a dyn Device, +#[derive(Debug)] +pub struct PasswordSafe<'a, 'b> { + _device: &'a dyn Device<'b>, } /// Provides access to a [`PasswordSafe`][]. @@ -63,7 +68,7 @@ pub struct PasswordSafe<'a> { /// retrieved from it. /// /// [`PasswordSafe`]: struct.PasswordSafe.html -pub trait GetPasswordSafe { +pub trait GetPasswordSafe<'a> { /// Enables and returns the password safe. /// /// The underlying device must always live at least as long as a password safe retrieved from @@ -89,19 +94,20 @@ pub trait GetPasswordSafe { /// /// ```no_run /// use nitrokey::{Device, GetPasswordSafe, PasswordSafe}; - /// # use nitrokey::CommandError; + /// # use nitrokey::Error; /// /// fn use_password_safe(pws: &PasswordSafe) {} /// - /// # fn try_main() -> Result<(), CommandError> { - /// let device = nitrokey::connect()?; + /// # fn try_main() -> Result<(), Error> { + /// let mut manager = nitrokey::take()?; + /// let mut device = manager.connect()?; /// match device.get_password_safe("123456") { /// Ok(pws) => { /// use_password_safe(&pws); - /// device.lock()?; /// }, - /// Err(err) => println!("Could not open the password safe: {}", err), + /// Err(err) => eprintln!("Could not open the password safe: {}", err), /// }; + /// device.lock()?; /// # Ok(()) /// # } /// ``` @@ -110,34 +116,30 @@ pub trait GetPasswordSafe { /// [`lock`]: trait.Device.html#method.lock /// [`AesDecryptionFailed`]: enum.CommandError.html#variant.AesDecryptionFailed /// [`Device::build_aes_key`]: trait.Device.html#method.build_aes_key - /// [`InvalidString`]: enum.CommandError.html#variant.InvalidString + /// [`InvalidString`]: enum.LibraryError.html#variant.InvalidString /// [`Unknown`]: enum.CommandError.html#variant.Unknown /// [`WrongPassword`]: enum.CommandError.html#variant.WrongPassword - fn get_password_safe(&self, user_pin: &str) -> Result<PasswordSafe<'_>, CommandError>; + fn get_password_safe(&mut self, user_pin: &str) -> Result<PasswordSafe<'_, 'a>, Error>; } -fn get_password_safe<'a>( - device: &'a dyn Device, +fn get_password_safe<'a, 'b>( + device: &'a dyn Device<'b>, user_pin: &str, -) -> Result<PasswordSafe<'a>, CommandError> { +) -> Result<PasswordSafe<'a, 'b>, Error> { let user_pin_string = get_cstring(user_pin)?; - let result = unsafe { - get_command_result(nitrokey_sys::NK_enable_password_safe( - user_pin_string.as_ptr(), - )) - }; - result.map(|()| PasswordSafe { _device: device }) + get_command_result(unsafe { nitrokey_sys::NK_enable_password_safe(user_pin_string.as_ptr()) }) + .map(|_| PasswordSafe { _device: device }) } -fn get_pws_result(s: String) -> Result<String, CommandError> { +fn get_pws_result(s: String) -> Result<String, Error> { if s.is_empty() { - Err(CommandError::SlotNotProgrammed) + Err(CommandError::SlotNotProgrammed.into()) } else { Ok(s) } } -impl<'a> PasswordSafe<'a> { +impl<'a, 'b> PasswordSafe<'a, 'b> { /// Returns the status of all password slots. /// /// The status indicates whether a slot is programmed or not. @@ -146,10 +148,11 @@ impl<'a> PasswordSafe<'a> { /// /// ```no_run /// use nitrokey::{GetPasswordSafe, SLOT_COUNT}; - /// # use nitrokey::CommandError; + /// # use nitrokey::Error; /// - /// # fn try_main() -> Result<(), CommandError> { - /// let device = nitrokey::connect()?; + /// # fn try_main() -> Result<(), Error> { + /// let mut manager = nitrokey::take()?; + /// let mut device = manager.connect()?; /// let pws = device.get_password_safe("123456")?; /// pws.get_slot_status()?.iter().enumerate().for_each(|(slot, programmed)| { /// let status = match *programmed { @@ -161,7 +164,7 @@ impl<'a> PasswordSafe<'a> { /// # Ok(()) /// # } /// ``` - pub fn get_slot_status(&self) -> Result<[bool; SLOT_COUNT as usize], CommandError> { + pub fn get_slot_status(&self) -> Result<[bool; SLOT_COUNT as usize], Error> { let status_ptr = unsafe { nitrokey_sys::NK_get_password_safe_slot_status() }; if status_ptr.is_null() { return Err(get_last_error()); @@ -191,10 +194,11 @@ impl<'a> PasswordSafe<'a> { /// /// ```no_run /// use nitrokey::GetPasswordSafe; - /// # use nitrokey::CommandError; + /// # use nitrokey::Error; /// - /// # fn try_main() -> Result<(), CommandError> { - /// let device = nitrokey::connect()?; + /// # fn try_main() -> Result<(), Error> { + /// let mut manager = nitrokey::take()?; + /// let mut device = manager.connect()?; /// match device.get_password_safe("123456") { /// Ok(pws) => { /// let name = pws.get_slot_name(0)?; @@ -202,16 +206,16 @@ impl<'a> PasswordSafe<'a> { /// let password = pws.get_slot_login(0)?; /// println!("Credentials for {}: login {}, password {}", name, login, password); /// }, - /// Err(err) => println!("Could not open the password safe: {}", err), + /// Err(err) => eprintln!("Could not open the password safe: {}", err), /// }; /// # Ok(()) /// # } /// ``` /// - /// [`InvalidSlot`]: enum.CommandError.html#variant.InvalidSlot + /// [`InvalidSlot`]: enum.LibraryError.html#variant.InvalidSlot /// [`SlotNotProgrammed`]: enum.CommandError.html#variant.SlotNotProgrammed - pub fn get_slot_name(&self, slot: u8) -> Result<String, CommandError> { - unsafe { result_from_string(nitrokey_sys::NK_get_password_safe_slot_name(slot)) } + pub fn get_slot_name(&self, slot: u8) -> Result<String, Error> { + result_from_string(unsafe { nitrokey_sys::NK_get_password_safe_slot_name(slot) }) .and_then(get_pws_result) } @@ -228,10 +232,11 @@ impl<'a> PasswordSafe<'a> { /// /// ```no_run /// use nitrokey::GetPasswordSafe; - /// # use nitrokey::CommandError; + /// # use nitrokey::Error; /// - /// # fn try_main() -> Result<(), CommandError> { - /// let device = nitrokey::connect()?; + /// # fn try_main() -> Result<(), Error> { + /// let mut manager = nitrokey::take()?; + /// let mut device = manager.connect()?; /// let pws = device.get_password_safe("123456")?; /// let name = pws.get_slot_name(0)?; /// let login = pws.get_slot_login(0)?; @@ -241,10 +246,10 @@ impl<'a> PasswordSafe<'a> { /// # } /// ``` /// - /// [`InvalidSlot`]: enum.CommandError.html#variant.InvalidSlot + /// [`InvalidSlot`]: enum.LibraryError.html#variant.InvalidSlot /// [`SlotNotProgrammed`]: enum.CommandError.html#variant.SlotNotProgrammed - pub fn get_slot_login(&self, slot: u8) -> Result<String, CommandError> { - unsafe { result_from_string(nitrokey_sys::NK_get_password_safe_slot_login(slot)) } + pub fn get_slot_login(&self, slot: u8) -> Result<String, Error> { + result_from_string(unsafe { nitrokey_sys::NK_get_password_safe_slot_login(slot) }) .and_then(get_pws_result) } @@ -261,10 +266,11 @@ impl<'a> PasswordSafe<'a> { /// /// ```no_run /// use nitrokey::GetPasswordSafe; - /// # use nitrokey::CommandError; + /// # use nitrokey::Error; /// - /// # fn try_main() -> Result<(), CommandError> { - /// let device = nitrokey::connect()?; + /// # fn try_main() -> Result<(), Error> { + /// let mut manager = nitrokey::take()?; + /// let mut device = manager.connect()?; /// let pws = device.get_password_safe("123456")?; /// let name = pws.get_slot_name(0)?; /// let login = pws.get_slot_login(0)?; @@ -274,10 +280,10 @@ impl<'a> PasswordSafe<'a> { /// # } /// ``` /// - /// [`InvalidSlot`]: enum.CommandError.html#variant.InvalidSlot + /// [`InvalidSlot`]: enum.LibraryError.html#variant.InvalidSlot /// [`SlotNotProgrammed`]: enum.CommandError.html#variant.SlotNotProgrammed - pub fn get_slot_password(&self, slot: u8) -> Result<String, CommandError> { - unsafe { result_from_string(nitrokey_sys::NK_get_password_safe_slot_password(slot)) } + pub fn get_slot_password(&self, slot: u8) -> Result<String, Error> { + result_from_string(unsafe { nitrokey_sys::NK_get_password_safe_slot_password(slot) }) .and_then(get_pws_result) } @@ -292,10 +298,11 @@ impl<'a> PasswordSafe<'a> { /// /// ```no_run /// use nitrokey::GetPasswordSafe; - /// # use nitrokey::CommandError; + /// # use nitrokey::Error; /// - /// # fn try_main() -> Result<(), CommandError> { - /// let device = nitrokey::connect()?; + /// # fn try_main() -> Result<(), Error> { + /// let mut manager = nitrokey::take()?; + /// let mut device = manager.connect()?; /// let pws = device.get_password_safe("123456")?; /// let name = pws.get_slot_name(0)?; /// let login = pws.get_slot_login(0)?; @@ -305,26 +312,26 @@ impl<'a> PasswordSafe<'a> { /// # } /// ``` /// - /// [`InvalidSlot`]: enum.CommandError.html#variant.InvalidSlot - /// [`InvalidString`]: enum.CommandError.html#variant.InvalidString + /// [`InvalidSlot`]: enum.LibraryError.html#variant.InvalidSlot + /// [`InvalidString`]: enum.LibraryError.html#variant.InvalidString pub fn write_slot( - &self, + &mut self, slot: u8, name: &str, login: &str, password: &str, - ) -> Result<(), CommandError> { + ) -> Result<(), Error> { let name_string = get_cstring(name)?; let login_string = get_cstring(login)?; let password_string = get_cstring(password)?; - unsafe { - get_command_result(nitrokey_sys::NK_write_password_safe_slot( + get_command_result(unsafe { + nitrokey_sys::NK_write_password_safe_slot( slot, name_string.as_ptr(), login_string.as_ptr(), password_string.as_ptr(), - )) - } + ) + }) } /// Erases the given slot. Erasing clears the stored name, login and password (if the slot was @@ -338,46 +345,47 @@ impl<'a> PasswordSafe<'a> { /// /// ```no_run /// use nitrokey::GetPasswordSafe; - /// # use nitrokey::CommandError; + /// # use nitrokey::Error; /// - /// # fn try_main() -> Result<(), CommandError> { - /// let device = nitrokey::connect()?; - /// let pws = device.get_password_safe("123456")?; + /// # fn try_main() -> Result<(), Error> { + /// let mut manager = nitrokey::take()?; + /// let mut device = manager.connect()?; + /// let mut pws = device.get_password_safe("123456")?; /// match pws.erase_slot(0) { /// Ok(()) => println!("Erased slot 0."), - /// Err(err) => println!("Could not erase slot 0: {}", err), + /// Err(err) => eprintln!("Could not erase slot 0: {}", err), /// }; /// # Ok(()) /// # } /// ``` /// - /// [`InvalidSlot`]: enum.CommandError.html#variant.InvalidSlot - pub fn erase_slot(&self, slot: u8) -> Result<(), CommandError> { - unsafe { get_command_result(nitrokey_sys::NK_erase_password_safe_slot(slot)) } + /// [`InvalidSlot`]: enum.LibraryError.html#variant.InvalidSlot + pub fn erase_slot(&mut self, slot: u8) -> Result<(), Error> { + get_command_result(unsafe { nitrokey_sys::NK_erase_password_safe_slot(slot) }) } } -impl<'a> Drop for PasswordSafe<'a> { +impl<'a, 'b> Drop for PasswordSafe<'a, 'b> { fn drop(&mut self) { // TODO: disable the password safe -- NK_lock_device has side effects on the Nitrokey // Storage, see https://github.com/Nitrokey/nitrokey-storage-firmware/issues/65 } } -impl GetPasswordSafe for Pro { - fn get_password_safe(&self, user_pin: &str) -> Result<PasswordSafe<'_>, CommandError> { +impl<'a> GetPasswordSafe<'a> for Pro<'a> { + fn get_password_safe(&mut self, user_pin: &str) -> Result<PasswordSafe<'_, 'a>, Error> { get_password_safe(self, user_pin) } } -impl GetPasswordSafe for Storage { - fn get_password_safe(&self, user_pin: &str) -> Result<PasswordSafe<'_>, CommandError> { +impl<'a> GetPasswordSafe<'a> for Storage<'a> { + fn get_password_safe(&mut self, user_pin: &str) -> Result<PasswordSafe<'_, 'a>, Error> { get_password_safe(self, user_pin) } } -impl GetPasswordSafe for DeviceWrapper { - fn get_password_safe(&self, user_pin: &str) -> Result<PasswordSafe<'_>, CommandError> { +impl<'a> GetPasswordSafe<'a> for DeviceWrapper<'a> { + fn get_password_safe(&mut self, user_pin: &str) -> Result<PasswordSafe<'_, 'a>, Error> { get_password_safe(self, user_pin) } } |