Struct Credential

pub struct Credential(/* private fields */);

Wraps the kernel’s struct cred.

Credentials are used for various security checks in the kernel.

Most fields of credentials are immutable. When things have their credentials changed, that happens by replacing the credential instead of changing an existing credential. See the kernel documentation for more info on this.

Invariants

Instances of this type are always ref-counted, that is, a call to get_cred ensures that the allocation remains valid at least until the matching call to put_cred.

Implementations

impl Credential

pub unsafe fn from_ptr<'a>(ptr: *const cred) -> &'a Credential

Creates a reference to a Credential from a valid pointer.

Safety

The caller must ensure that ptr is valid and remains valid for the lifetime of the returned Credential reference.

pub fn get_secid(&self) -> u32

Get the id for this security context.

pub fn euid(&self) -> Kuid

Returns the effective UID of the given credential.

Trait Implementations

impl AlwaysRefCounted for Credential

fn inc_ref(&self)

Increments the reference count on the object.

unsafe fn dec_ref(obj: NonNull<Credential>)

Decrements the reference count on the object.

impl Send for Credential

impl Sync for Credential