Skip to main content

BoundedScope

Struct BoundedScope 

Source
pub struct BoundedScope<'a>(/* private fields */);
Expand description

Validated, non-empty TLV sequence of permissions.

Each entry has the layout:

[res_len: u8][resource bytes][verb_len: u8][verb bytes]

try_new walks the slice and verifies that:

  • the slice is non-empty,
  • every entry is complete (no truncated fields),
  • the total number of entries does not exceed MAX_SCOPE_PERMS.

After construction the slice is guaranteed to be fully consumed by well-formed entries and iterable via iter().

Implementations§

Source§

impl<'a> BoundedScope<'a>

Source

pub fn iter(&self) -> ScopeIter<'a>

Returns an iterator yielding (resource, verb) pairs in order.

Source

pub fn try_new(raw: &'a [u8]) -> Result<Self, KernelError>

Parses and validates a raw TLV slice.

Returns ScopeEmpty if raw is empty, WireInvalid if any entry is truncated or structurally incorrect, and ScopeTooLarge if the entry count exceeds MAX_SCOPE_PERMS.

Trait Implementations§

Source§

impl<'a> Clone for BoundedScope<'a>

Source§

fn clone(&self) -> BoundedScope<'a>

Returns a duplicate of the value. Read more
1.0.0 · Source§

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

Performs copy-assignment from source. Read more
Source§

impl<'a> Debug for BoundedScope<'a>

Source§

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

Formats the value using the given formatter. Read more
Source§

impl<'a> PartialEq for BoundedScope<'a>

Source§

fn eq(&self, other: &BoundedScope<'a>) -> bool

Tests for self and other values to be equal, and is used by ==.
1.0.0 · Source§

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
Source§

impl<'a> Copy for BoundedScope<'a>

Source§

impl<'a> Eq for BoundedScope<'a>

Source§

impl<'a> StructuralPartialEq for BoundedScope<'a>

Auto Trait Implementations§

§

impl<'a> Freeze for BoundedScope<'a>

§

impl<'a> RefUnwindSafe for BoundedScope<'a>

§

impl<'a> Send for BoundedScope<'a>

§

impl<'a> Sync for BoundedScope<'a>

§

impl<'a> Unpin for BoundedScope<'a>

§

impl<'a> UnsafeUnpin for BoundedScope<'a>

§

impl<'a> UnwindSafe for BoundedScope<'a>

Blanket Implementations§

Source§

impl<T> Any for T
where T: 'static + ?Sized,

Source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
Source§

impl<T> Borrow<T> for T
where T: ?Sized,

Source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
Source§

impl<T> BorrowMut<T> for T
where T: ?Sized,

Source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
Source§

impl<T> CloneToUninit for T
where T: Clone,

Source§

unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
Source§

impl<T> From<T> for T

Source§

fn from(t: T) -> T

Returns the argument unchanged.

Source§

impl<T, U> Into<U> for T
where U: From<T>,

Source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

Source§

impl<T> Same for T

Source§

type Output = T

Should always be Self
Source§

impl<T> ToOwned for T
where T: Clone,

Source§

type Owned = T

The resulting type after obtaining ownership.
Source§

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
Source§

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
Source§

impl<T, U> TryFrom<U> for T
where U: Into<T>,

Source§

type Error = Infallible

The type returned in the event of a conversion error.
Source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
Source§

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

Source§

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
Source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.