Struct firmware_uefi::service::nvram::spec_services::SupportedAttrs

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

SetVariable validation is incredibly tricky, since there are a lot of subtle logic branches that are predicated on the presence (or lack thereof) of various attribute bits.

In order to make the implementation a bit easier to understand and maintain, we switch from using the full-featured EfiVariableAttributes bitflags type to a restricted subset of these flags described by SupportedAttrs part-way through SetVariable.

Implementations

impl SupportedAttrs

pub const fn new() -> Self

Creates a new default initialized bitfield.

pub const fn from_bits(bits: u32) -> Self

Convert from bits.

pub const fn into_bits(self) -> u32

Convert into bits.

pub const fn non_volatile(&self) -> bool

Bits: 0..1

pub const fn with_non_volatile(self, value: bool) -> Self

Bits: 0..1

pub fn set_non_volatile(&mut self, value: bool)

Bits: 0..1

pub const fn bootservice_access(&self) -> bool

Bits: 1..2

pub const fn with_bootservice_access(self, value: bool) -> Self

Bits: 1..2

pub fn set_bootservice_access(&mut self, value: bool)

Bits: 1..2

pub const fn runtime_access(&self) -> bool

Bits: 2..3

pub const fn with_runtime_access(self, value: bool) -> Self

Bits: 2..3

pub fn set_runtime_access(&mut self, value: bool)

Bits: 2..3

pub const fn hardware_error_record(&self) -> bool

Bits: 3..4

pub const fn with_hardware_error_record(self, value: bool) -> Self

Bits: 3..4

pub fn set_hardware_error_record(&mut self, value: bool)

Bits: 3..4

pub const fn time_based_authenticated_write_access(&self) -> bool

Bits: 5..6

pub const fn with_time_based_authenticated_write_access( self, value: bool, ) -> Self

Bits: 5..6

pub fn set_time_based_authenticated_write_access(&mut self, value: bool)

Bits: 5..6

impl SupportedAttrs

pub fn contains_unsupported_bits(&self) -> bool

Trait Implementations

impl Clone for SupportedAttrs

fn clone(&self) -> SupportedAttrs

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for SupportedAttrs

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

Formats the value using the given formatter.

impl Default for SupportedAttrs

fn default() -> Self

Returns the “default value” for a type.

impl From<SupportedAttrs> for u32

fn from(v: SupportedAttrs) -> u32

Converts to this type from the input type.

impl From<u32> for SupportedAttrs

fn from(v: u32) -> Self

Converts to this type from the input type.

impl PartialEq for SupportedAttrs

fn eq(&self, other: &SupportedAttrs) -> bool

Tests for self and other values to be equal, and is used by ==.

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

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

impl Copy for SupportedAttrs

impl StructuralPartialEq for SupportedAttrs