Struct MemoryAccess 

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

Memory access permission flags.

Implementations

impl MemoryAccess

pub const R: MemoryAccess

Available on crate features injector and utils only.

Read permission.

pub const W: MemoryAccess

Available on crate features injector and utils only.

Write permission.

pub const X: MemoryAccess

Available on crate features injector and utils only.

Execute permission.

pub const RW: MemoryAccess

Available on crate features injector and utils only.

Combined Read and Write permissions.

pub const WX: MemoryAccess

Available on crate features injector and utils only.

Combined Write and Execute permissions.

pub const RX: MemoryAccess

Available on crate features injector and utils only.

Combined Read and Execute permissions.

pub const RWX: MemoryAccess

Available on crate features injector and utils only.

Full access: Read, Write, and Execute permissions.

impl MemoryAccess

pub const fn empty() -> MemoryAccess

Available on crate features injector and utils only.

Get a flags value with all bits unset.

pub const fn all() -> MemoryAccess

Available on crate features injector and utils only.

Get a flags value with all known bits set.

pub const fn bits(&self) -> u8

Available on crate features injector and utils only.

Get the underlying bits value.

The returned value is exactly the bits set in this flags value.

pub const fn from_bits(bits: u8) -> Option<MemoryAccess>

Available on crate features injector and utils only.

Convert from a bits value.

This method will return None if any unknown bits are set.

pub const fn from_bits_truncate(bits: u8) -> MemoryAccess

Available on crate features injector and utils only.

Convert from a bits value, unsetting any unknown bits.

pub const fn from_bits_retain(bits: u8) -> MemoryAccess

Available on crate features injector and utils only.

Convert from a bits value exactly.

pub fn from_name(name: &str) -> Option<MemoryAccess>

Available on crate features injector and utils only.

Get a flags value with the bits of a flag with the given name set.

This method will return None if name is empty or doesn’t correspond to any named flag.

pub const fn is_empty(&self) -> bool

Available on crate features injector and utils only.

Whether all bits in self are unset.

pub const fn is_all(&self) -> bool

Available on crate features injector and utils only.

Whether all known bits in this flags value are set.

pub const fn intersects(&self, other: MemoryAccess) -> bool

Available on crate features injector and utils only.

Whether any set bits in other are also set in self.

pub const fn contains(&self, other: MemoryAccess) -> bool

Available on crate features injector and utils only.

Whether all set bits in other are also set in self.

Examples found in repository

examples/windows-bridge/monitor/mod.rs (line 243)

    fn memory_access(
        &mut self,
        vmi: &VmiContext<WindowsOs<Driver>>,
    ) -> Result<VmiEventResponse<Amd64>, VmiError> {
        let memory_access = vmi.event().reason().as_memory_access();

        if memory_access.access.contains(MemoryAccess::W) {
            self.ptm
                .mark_dirty_entry(memory_access.pa, self.view, vmi.event().vcpu_id());

            Ok(VmiEventResponse::singlestep().with_view(vmi.default_view()))
        }
        else if memory_access.access.contains(MemoryAccess::R) {
            Ok(VmiEventResponse::fast_singlestep(vmi.default_view()))
        }
        else {
            panic!("unhandled memory access: {memory_access:?}");
        }
    }

examples/windows-breakpoint-manager.rs (line 254)

    fn memory_access(
        &mut self,
        vmi: &VmiContext<WindowsOs<Driver>>,
    ) -> Result<VmiEventResponse<Amd64>, VmiError> {
        let memory_access = vmi.event().reason().as_memory_access();

        tracing::trace!(
            pa = %memory_access.pa,
            va = %memory_access.va,
            access = %memory_access.access,
        );

        if memory_access.access.contains(MemoryAccess::W) {
            // It is assumed that a write memory access event is caused by a
            // page table modification.
            //
            // The page table entry is marked as dirty in the page table monitor
            // and a singlestep is performed to process the dirty entries.
            self.ptm
                .mark_dirty_entry(memory_access.pa, self.view, vmi.event().vcpu_id());

            Ok(VmiEventResponse::singlestep().with_view(vmi.default_view()))
        }
        else if memory_access.access.contains(MemoryAccess::R) {
            // When the guest tries to read from the memory, a fast-singlestep
            // is performed over the instruction that tried to read the memory.
            // This is done to allow the instruction to read the original memory
            // content.
            Ok(VmiEventResponse::fast_singlestep(vmi.default_view()))
        }
        else {
            panic!("Unhandled memory access: {memory_access:?}");
        }
    }

pub fn insert(&mut self, other: MemoryAccess)

Available on crate features injector and utils only.

The bitwise or (|) of the bits in self and other.

pub fn remove(&mut self, other: MemoryAccess)

Available on crate features injector and utils only.

The intersection of self with the complement of other (&!).

This method is not equivalent to self & !other when other has unknown bits set. remove won’t truncate other, but the ! operator will.

pub fn toggle(&mut self, other: MemoryAccess)

Available on crate features injector and utils only.

The bitwise exclusive-or (^) of the bits in self and other.

pub fn set(&mut self, other: MemoryAccess, value: bool)

Available on crate features injector and utils only.

Call insert when value is true or remove when value is false.

pub const fn intersection(self, other: MemoryAccess) -> MemoryAccess

Available on crate features injector and utils only.

The bitwise and (&) of the bits in self and other.

pub const fn union(self, other: MemoryAccess) -> MemoryAccess

Available on crate features injector and utils only.

The bitwise or (|) of the bits in self and other.

pub const fn difference(self, other: MemoryAccess) -> MemoryAccess

Available on crate features injector and utils only.

The intersection of self with the complement of other (&!).

This method is not equivalent to self & !other when other has unknown bits set. difference won’t truncate other, but the ! operator will.

pub const fn symmetric_difference(self, other: MemoryAccess) -> MemoryAccess

Available on crate features injector and utils only.

The bitwise exclusive-or (^) of the bits in self and other.

pub const fn complement(self) -> MemoryAccess

Available on crate features injector and utils only.

The bitwise negation (!) of the bits in self, truncating the result.

impl MemoryAccess

pub const fn iter(&self) -> Iter<MemoryAccess>

Available on crate features injector and utils only.

Yield a set of contained flags values.

Each yielded flags value will correspond to a defined named flag. Any unknown bits will be yielded together as a final flags value.

pub const fn iter_names(&self) -> IterNames<MemoryAccess>

Available on crate features injector and utils only.

Yield a set of contained named flags values.

This method is like iter, except only yields bits in contained named flags. Any unknown bits, or bits not corresponding to a contained flag will not be yielded.

Trait Implementations

impl Binary for MemoryAccess

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

Formats the value using the given formatter.

impl BitAnd for MemoryAccess

fn bitand(self, other: MemoryAccess) -> MemoryAccess

The bitwise and (&) of the bits in self and other.

type Output = MemoryAccess

The resulting type after applying the & operator.

impl BitAndAssign for MemoryAccess

fn bitand_assign(&mut self, other: MemoryAccess)

The bitwise and (&) of the bits in self and other.

impl BitOr for MemoryAccess

fn bitor(self, other: MemoryAccess) -> MemoryAccess

The bitwise or (|) of the bits in self and other.

type Output = MemoryAccess

The resulting type after applying the | operator.

impl BitOrAssign for MemoryAccess

fn bitor_assign(&mut self, other: MemoryAccess)

The bitwise or (|) of the bits in self and other.

impl BitXor for MemoryAccess

fn bitxor(self, other: MemoryAccess) -> MemoryAccess

The bitwise exclusive-or (^) of the bits in self and other.

type Output = MemoryAccess

The resulting type after applying the ^ operator.

impl BitXorAssign for MemoryAccess

fn bitxor_assign(&mut self, other: MemoryAccess)

The bitwise exclusive-or (^) of the bits in self and other.

impl Clone for MemoryAccess

fn clone(&self) -> MemoryAccess

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for MemoryAccess

impl Debug for MemoryAccess

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

Formats the value using the given formatter.

impl Default for MemoryAccess

fn default() -> MemoryAccess

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for MemoryAccess

fn deserialize<__D>( __deserializer: __D, ) -> Result<MemoryAccess, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for MemoryAccess

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

Formats the value using the given formatter.

impl Eq for MemoryAccess

impl Extend<MemoryAccess> for MemoryAccess

fn extend<T>(&mut self, iterator: T)

where T: IntoIterator<Item = MemoryAccess>,

The bitwise or (|) of the bits in each flags value.

fn extend_one(&mut self, item: T)

🔬This is a nightly-only experimental API. (extend_one)

Extends a collection with exactly one element.

fn extend_reserve(&mut self, additional: usize)

🔬This is a nightly-only experimental API. (extend_one)

Reserves capacity in a collection for the given number of additional elements.

impl Flags for MemoryAccess

const FLAGS: &'static [Flag<MemoryAccess>]

The set of defined flags.

type Bits = u8

The underlying bits type.

fn bits(&self) -> u8

Get the underlying bits value.

fn from_bits_retain(bits: u8) -> MemoryAccess

Convert from a bits value exactly.

fn all_named() -> MemoryAccess

Get a flags value with all bits from named flags set.

fn empty() -> Self

Get a flags value with all bits unset.

fn all() -> Self

Get a flags value with all known bits set.

fn known_bits(&self) -> Self::Bits

Get the known bits from a flags value.

fn unknown_bits(&self) -> Self::Bits

Get the unknown bits from a flags value.

fn contains_unknown_bits(&self) -> bool

This method will return true if any unknown bits are set.

fn from_bits(bits: Self::Bits) -> Option<Self>

Convert from a bits value.

fn from_bits_truncate(bits: Self::Bits) -> Self

Convert from a bits value, unsetting any unknown bits.

fn from_name(name: &str) -> Option<Self>

Get a flags value with the bits of a flag with the given name set.

fn iter(&self) -> Iter<Self>

Yield a set of contained flags values.

fn iter_names(&self) -> IterNames<Self>

Yield a set of contained named flags values.

fn iter_defined_names() -> IterDefinedNames<Self>

Yield a set of all named flags defined by Self::FLAGS.

fn iter_equal_names(&self) -> IterEqualNames<Self>

Get an iterator over all defined names for this flags value.

fn is_empty(&self) -> bool

Whether all bits in this flags value are unset.

fn is_all(&self) -> bool

Whether all known bits in this flags value are set.

fn intersects(&self, other: Self) -> bool

where Self: Sized,

Whether any set bits in other are also set in self.

fn contains(&self, other: Self) -> bool

where Self: Sized,

Whether all set bits in other are also set in self.

fn truncate(&mut self)

where Self: Sized,

Remove any unknown bits from the flags.

fn insert(&mut self, other: Self)

where Self: Sized,

The bitwise or (|) of the bits in self and other.

fn remove(&mut self, other: Self)

where Self: Sized,

The intersection of self with the complement of other (&!).

fn toggle(&mut self, other: Self)

where Self: Sized,

The bitwise exclusive-or (^) of the bits in self and other.

fn set(&mut self, other: Self, value: bool)

where Self: Sized,

Call Flags::insert when value is true or Flags::remove when value is false.

fn clear(&mut self)

where Self: Sized,

Unsets all bits in the flags.

fn intersection(self, other: Self) -> Self

The bitwise and (&) of the bits in self and other.

fn union(self, other: Self) -> Self

The bitwise or (|) of the bits in self and other.

fn difference(self, other: Self) -> Self

The intersection of self with the complement of other (&!).

fn symmetric_difference(self, other: Self) -> Self

The bitwise exclusive-or (^) of the bits in self and other.

fn complement(self) -> Self

The bitwise negation (!) of the bits in self, truncating the result.

impl FromIterator<MemoryAccess> for MemoryAccess

fn from_iter<T>(iterator: T) -> MemoryAccess

where T: IntoIterator<Item = MemoryAccess>,

The bitwise or (|) of the bits in each flags value.

impl Hash for MemoryAccess

fn hash<__H>(&self, state: &mut __H)

where __H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl IntoIterator for MemoryAccess

type Item = MemoryAccess

The type of the elements being iterated over.

type IntoIter = Iter<MemoryAccess>

Which kind of iterator are we turning this into?

fn into_iter(self) -> <MemoryAccess as IntoIterator>::IntoIter

Creates an iterator from a value.

impl LowerHex for MemoryAccess

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

Formats the value using the given formatter.

impl Not for MemoryAccess

fn not(self) -> MemoryAccess

The bitwise negation (!) of the bits in self, truncating the result.

type Output = MemoryAccess

The resulting type after applying the ! operator.

impl Octal for MemoryAccess

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

Formats the value using the given formatter.

impl Ord for MemoryAccess

fn cmp(&self, other: &MemoryAccess) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

fn clamp_to<R>(self, range: R) -> Self

where Self: Sized, R: ClampBounds<Self>,

🔬This is a nightly-only experimental API. (clamp_to)

Restrict a value to a certain range.

impl PartialEq for MemoryAccess

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for MemoryAccess

fn partial_cmp(&self, other: &MemoryAccess) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Serialize for MemoryAccess

fn serialize<__S>( &self, __serializer: __S, ) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for MemoryAccess

impl Sub for MemoryAccess

fn sub(self, other: MemoryAccess) -> MemoryAccess

The intersection of self with the complement of other (&!).

This method is not equivalent to self & !other when other has unknown bits set. difference won’t truncate other, but the ! operator will.

type Output = MemoryAccess

The resulting type after applying the - operator.

impl SubAssign for MemoryAccess

fn sub_assign(&mut self, other: MemoryAccess)

The intersection of self with the complement of other (&!).

This method is not equivalent to self & !other when other has unknown bits set. difference won’t truncate other, but the ! operator will.

impl UpperHex for MemoryAccess

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

Formats the value using the given formatter.