Struct UserAccount 

pub struct UserAccount {
    pub user_id: UserId,
    pub username: &'static str,
    pub salt: [u8; 32],
    pub locked: bool,
    pub failed_attempts: u32,
    pub mfa_enabled: bool,
    pub mfa_secret: Option<[u8; 32]>,
    pub expires_at: Option<u64>,
    pub password_history_len: usize,
    /* private fields */
}

User account information (fixed-size, no heap allocation).

Fields

user_id: UserId

username: &'static str

salt: [u8; 32]

locked: bool

failed_attempts: u32

mfa_enabled: bool

mfa_secret: Option<[u8; 32]>

expires_at: Option<u64>

Account expiration timestamp (seconds since boot). None = never expires.

password_history_len: usize

Number of valid entries in password_history.

Implementations

impl UserAccount

pub fn new(user_id: UserId, username: &'static str, password: &str) -> Self

Create new user account

pub fn verify_password(&self, password: &str) -> bool

Verify password

pub fn is_expired(&self) -> bool

Check if the account has expired.

pub fn set_expiration(&mut self, expires_at: Option<u64>)

Set account expiration time.

pub fn change_password( &mut self, new_password: &str, history_size: usize, ) -> Result<(), KernelError>

Change password with history tracking.

Checks that the new password is not the current password and not in the password history. The history_size parameter controls how many old (hash, salt) pairs to retain.

pub fn enable_mfa(&mut self) -> [u8; 32]

Enable MFA for this account

pub fn verify_mfa_token(&self, token: u32) -> bool

Verify MFA token (TOTP-like)

Trait Implementations

impl Clone for UserAccount

fn clone(&self) -> UserAccount

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for UserAccount

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.