Struct tss_esapi::structures::pcr_selection::PcrSelection

pub struct PcrSelection { /* private fields */ }

This module contains the PcrSelection struct. The TSS counterpart of this struct is the TPMS_PCR_SELECTION.

Implementations

impl PcrSelection

pub fn create( hashing_algorithm: HashingAlgorithm, size_of_select: PcrSelectSize, selected_pcr_slots: &[PcrSlot] ) -> Result<Self>

Creates new PcrSelection

Errors

Returns InconsistentParams error if a pcr slot has been provided that ends up in an octet outside the range specified by the size_of_select parameter.

pub const fn hashing_algorithm(&self) -> HashingAlgorithm

Returns the hashing algorithm for the selection

pub const fn size_of_select(&self) -> PcrSelectSize

Returns ‘Size of Select’

NB! This is not the same as how many PcrSlot there are in the selection but rather how many octets that are needed to hold the bit field that indicate what slots that are selected.

pub fn selected(&self) -> Vec<PcrSlot>

Returns the selected pcrs.

pub fn is_selected(&self, pcr_slot: PcrSlot) -> bool

Returns true if the specified PcrSlot is selected in the PcrSelection.

pub fn deselect_exact(&mut self, pcr_slot: PcrSlot) -> Result<()>

Removes the specified PcrSlots from the selected pcrs.

Errors

If one of the specified pcr slots does not exist in the selected pcrs.

pub fn deselect(&mut self, pcr_slot: PcrSlot)

Removes the specified PcrSlots from the selected pcrs.

pub fn merge_exact(&mut self, other: &Self) -> Result<()>

Merges another PcrSelection into self if the elements in the collection does not already exist in self.

Constraints

• Cannot be called with other that has a hashing_algorithm that is different from the one in self.
• Cannot be called with other that has a size_of_select that is different from the one in self.
• Cannot be called with otherthat contains pcr slots present in self.

Errors

Returns InvalidParam if there is a hashing algorithm mismatch Returns InvalidParam if there is size of select mismatch. Returns InvalidParam if other contains items that are present in self

pub fn subtract_exact(&mut self, other: &Self) -> Result<()>

Removes the selected pcr slots in other from selfif none of the pcr slots are present in self.

Constraints

• Cannot be called with other that has a hashing_algorithm that is different from the one in self.
• Cannot be called with other that has a size_of_select that is different from the one in self.
• Cannot be called with otherthat contains pcr slots not present in self.

pub fn is_empty(&self) -> bool

Indicates whether the pcr selection is empty.

Trait Implementations

impl Clone for PcrSelection

fn clone(&self) -> PcrSelection

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for PcrSelection

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

Formats the value using the given formatter.

impl From<PcrSelection> for TPMS_PCR_SELECTION

fn from(pcr_selection: PcrSelection) -> Self

Converts to this type from the input type.

impl PartialEq for PcrSelection

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

This method tests for self and other values to be equal, and is used by ==.

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

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

impl TryFrom<TPMS_PCR_SELECTION> for PcrSelection

type Error = Error

The type returned in the event of a conversion error.

fn try_from(tss_pcr_selection: TPMS_PCR_SELECTION) -> Result<Self>

Performs the conversion.

impl Copy for PcrSelection

impl Eq for PcrSelection

impl StructuralPartialEq for PcrSelection