Struct DomainName 

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

Canonical DNS name used in network policy rules.

Strictly a hostname — port suffixes, userinfo, schemes, paths, queries, and fragments are rejected at parse time so a rule can never end up “matching” a name no DNS responder will ever return.

Constructed via str::parse or TryFrom<String>; both route through the same validation and canonicalization. The inner form is lowercased ASCII with no leading or trailing dots — the same form the DNS interceptor stores on the resolved-hostname cache, which lets match-time comparisons be byte-equal rather than case-insensitive.

Implementations

impl DomainName

pub fn as_str(&self) -> &str

Borrow the canonical string form. The returned slice has no trailing dot and is lowercased ASCII.

pub fn try_into_suffix(self) -> Result<Self, DomainNameError>

Validate this name for use as a Destination::DomainSuffix target and return it unchanged on success.

Returns DomainNameError::SuffixTooBroad when the name is a single DNS label (e.g. com, local, internal). The label-aware suffix matcher would otherwise treat such a name as “match every host under that TLD” which is almost certainly not what the operator meant. Use a multi-label suffix (myco.com, corp.internal) instead.

Domains intended for exact-match rules are unaffected: use Destination::Domain for those.

Trait Implementations

impl Clone for DomainName

fn clone(&self) -> DomainName

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DomainName

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for DomainName

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for DomainName

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

Formats the value using the given formatter.

impl From<DomainName> for String

fn from(name: DomainName) -> Self

Converts to this type from the input type.

impl FromStr for DomainName

type Err = DomainNameError

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl Hash for DomainName

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 PartialEq for DomainName

fn eq(&self, other: &DomainName) -> 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 Serialize for DomainName

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl TryFrom<&str> for DomainName

type Error = DomainNameError

The type returned in the event of a conversion error.

fn try_from(s: &str) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<String> for DomainName

type Error = DomainNameError

The type returned in the event of a conversion error.

fn try_from(s: String) -> Result<Self, Self::Error>

Performs the conversion.

impl Eq for DomainName

impl StructuralPartialEq for DomainName