Struct kernel::storage_permissions::StoragePermissions

pub struct StoragePermissions { /* private fields */ }

List of storage permissions for a storage user.

These identifiers signify what permissions a storage user has. The storage mechanism defines how the identifiers are assigned and how they relate to stored objects.

For simplicity, a we store to eight read and eight write permissions. The first count u32 values in permissions are valid.

Mar, 2022: This interface is considered experimental and for initial prototyping. As we learn more about how these permissions are set and used we may want to revamp this interface.

Implementations

impl StoragePermissions

pub fn new_kernel_permissions(_cap: &dyn KerneluserStorageCapability) -> Self

Create superuser permissions suitable for the kernel. This allows the kernel to read/update any stored item, and allows the kernel to write items that will not be accessible to any clients without superuser permissions.

pub fn check_read_permission(&self, storage_id: u32) -> bool

Check if this permission object grants read access to the specified storage_id. Returns true if access is permitted, false otherwise.

pub fn check_write_permission(&self, storage_id: u32) -> bool

Check if this permission object grants modify access to the specified storage_id. Returns true if access is permitted, false otherwise.

pub fn get_write_id(&self) -> Option<u32>

Get the write_id for saving items to the storage.

Trait Implementations

impl Clone for StoragePermissions

fn clone(&self) -> StoragePermissions

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for StoragePermissions