Struct LandlockAccessNet 

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

Permissions réseau Landlock (cf. linux/landlock.h), ABI v4+ (Linux 6.7).

Landlock ne borne le réseau que sur TCP, et seulement pour ces deux verbes. Ce n’est pas un pare-feu : il ne filtre ni les adresses, ni UDP, ni les paquets. Il répond à une question plus étroite — ce processus a-t-il le droit d’écouter, ou de se connecter, sur ce port ? — et il y répond dans le noyau, sans démon ni règle globale.

Le confondre avec un pare-feu serait une erreur de conception : une application qui reçoit CONNECT_TCP sur le port 443 peut joindre n’importe quelle machine sur ce port.

Bit	Depuis	Signification
BIND_TCP	Landlock v4 (Linux 6.7)	se lier à un port en écoute
CONNECT_TCP	Landlock v4 (Linux 6.7)	se connecter à un port

Comme pour LandlockAccessFs, demander un bit que le noyau ne connaît pas fait échouer la création du ruleset (EINVAL) : interroger landlock_supported_abi() avant de composer.

Implementations

impl LandlockAccessNet

pub const BIND_TCP: Self

Se lier à un port TCP (bind) — Landlock v4+.

pub const CONNECT_TCP: Self

Se connecter à un port TCP (connect) — Landlock v4+.

impl LandlockAccessNet

pub const fn empty() -> Self

Get a flags value with all bits unset.

pub const fn all() -> Self

Get a flags value with all known bits set.

pub const fn bits(&self) -> u64

Get the underlying bits value.

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

pub const fn from_bits(bits: u64) -> Option<Self>

Convert from a bits value.

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

pub const fn from_bits_truncate(bits: u64) -> Self

Convert from a bits value, unsetting any unknown bits.

pub const fn from_bits_retain(bits: u64) -> Self

Convert from a bits value exactly.

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

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

Whether all bits in self are unset.

pub const fn is_all(&self) -> bool

Whether all known bits in this flags value are set.

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

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

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

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

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

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

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

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: Self)

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

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

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

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

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

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

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

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

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: Self) -> Self

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

pub const fn complement(self) -> Self

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

impl LandlockAccessNet

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

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<LandlockAccessNet>

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 LandlockAccessNet

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

Formats the value using the given formatter.

impl BitAnd for LandlockAccessNet

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

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

type Output = LandlockAccessNet

The resulting type after applying the & operator.

impl BitAndAssign for LandlockAccessNet

fn bitand_assign(&mut self, other: Self)

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

impl BitOr for LandlockAccessNet

fn bitor(self, other: LandlockAccessNet) -> Self

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

type Output = LandlockAccessNet

The resulting type after applying the | operator.

impl BitOrAssign for LandlockAccessNet

fn bitor_assign(&mut self, other: Self)

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

impl BitXor for LandlockAccessNet

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

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

type Output = LandlockAccessNet

The resulting type after applying the ^ operator.

impl BitXorAssign for LandlockAccessNet

fn bitxor_assign(&mut self, other: Self)

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

impl Clone for LandlockAccessNet

fn clone(&self) -> LandlockAccessNet

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for LandlockAccessNet

impl Debug for LandlockAccessNet

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

Formats the value using the given formatter.

impl Default for LandlockAccessNet

fn default() -> LandlockAccessNet

Returns the “default value” for a type.

impl Eq for LandlockAccessNet

impl Extend<LandlockAccessNet> for LandlockAccessNet

fn extend<T: IntoIterator<Item = Self>>(&mut self, iterator: T)

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

fn extend_one(&mut self, item: A)

🔬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 LandlockAccessNet

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

The set of defined flags.

type Bits = u64

The underlying bits type.

fn bits(&self) -> u64

Get the underlying bits value.

fn from_bits_retain(bits: u64) -> LandlockAccessNet

Convert from a bits value exactly.

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 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<LandlockAccessNet> for LandlockAccessNet

fn from_iter<T: IntoIterator<Item = Self>>(iterator: T) -> Self

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

impl Hash for LandlockAccessNet

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

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 LandlockAccessNet

type Item = LandlockAccessNet

The type of the elements being iterated over.

type IntoIter = Iter<LandlockAccessNet>

Which kind of iterator are we turning this into?

fn into_iter(self) -> Self::IntoIter

Creates an iterator from a value.

impl LowerHex for LandlockAccessNet

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

Formats the value using the given formatter.

impl Not for LandlockAccessNet

fn not(self) -> Self

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

type Output = LandlockAccessNet

The resulting type after applying the ! operator.

impl Octal for LandlockAccessNet

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

Formats the value using the given formatter.

impl PartialEq for LandlockAccessNet

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

Equality operator ==.

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

Inequality operator !=.

impl PublicFlags for LandlockAccessNet

type Primitive = u64

The type of the underlying storage.

type Internal = InternalBitFlags

The type of the internal field on the generated flags type.

impl StructuralPartialEq for LandlockAccessNet

impl Sub for LandlockAccessNet

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

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 = LandlockAccessNet

The resulting type after applying the - operator.

impl SubAssign for LandlockAccessNet

fn sub_assign(&mut self, other: Self)

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 LandlockAccessNet

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

Formats the value using the given formatter.