libcryptsetup_rs/
key.rs

1// This Source Code Form is subject to the terms of the Mozilla Public
2// License, v. 2.0. If a copy of the MPL was not distributed with this
3// file, You can obtain one at http://mozilla.org/MPL/2.0/.
4
5use std::os::raw::{c_int, c_uint};
6
7use crate::{device::CryptDevice, err::LibcryptErr};
8
9/// Handle for volume key operations
10pub struct CryptVolumeKeyHandle<'a> {
11    reference: &'a mut CryptDevice,
12}
13
14impl<'a> CryptVolumeKeyHandle<'a> {
15    pub(crate) fn new(reference: &'a mut CryptDevice) -> Self {
16        CryptVolumeKeyHandle { reference }
17    }
18
19    /// Get volume key from crypt device - first tuple element is key slot, second is volume key
20    /// size
21    pub fn get(
22        &mut self,
23        keyslot: c_uint,
24        volume_key: &mut [u8],
25        passphrase: &[u8],
26    ) -> Result<(c_int, crate::size_t), LibcryptErr> {
27        let mut volume_key_size_t = volume_key.len();
28        errno_int_success!(mutex!(libcryptsetup_rs_sys::crypt_volume_key_get(
29            self.reference.as_ptr(),
30            keyslot as c_int,
31            to_mut_byte_ptr!(volume_key),
32            &mut volume_key_size_t as *mut _,
33            to_byte_ptr!(passphrase),
34            passphrase.len(),
35        )))
36        .map(|i| (i, volume_key_size_t))
37    }
38
39    /// Verify that volume key is valid for crypt device
40    pub fn verify(&mut self, volume_key: &[u8]) -> Result<(), LibcryptErr> {
41        errno!(mutex!(libcryptsetup_rs_sys::crypt_volume_key_verify(
42            self.reference.as_ptr(),
43            to_byte_ptr!(volume_key),
44            volume_key.len(),
45        )))
46    }
47}
libcryptsetup_rs/key.rs

libcryptsetup_rs/
key.rs
