Struct PortRanges 

struct PortRanges(Vec<PortRange>);

A collection of port ranges in a sorted order.

Please use this when storing multiple port ranges because it optimizies them storage wise.

Tuple Fields

0: Vec<PortRange>

Implementations

impl PortRanges

fn new() -> Self

Creates a new PortRanges collection with no elements in it.

fn is_empty(&self) -> bool

Checks whether there are no ranges in this instance.

fn push_ordered(&mut self, item: PortRange) -> Result<(), PolicyError>

Adds a new range into this PortRanges.

The ranges must be valid, nonoverlapping, and pushed in a monotonically increasing order, meaning that inserting 400-500,450-600 or 400-500,500-600 are invalid, whereas 400-500,501-600 and 400-500,501-600 are.

fn contains(&self, port: u16) -> bool

Checks whether port is contained in a range.

Whether this means if port is allowed or rejected depends on the surroundings (such as which field this PortRage is in, or an associated RuleKind).

fn inverted(&self) -> PortRanges

Returns an inverted PortRanges.

For example, a PortRanges of 80-443 would become 1-79,444-65535.

fn invert(&mut self)

Inverts a PortRanges in place

For example, a PortRanges of 80-443 would become 1-79,444-65535.

fn iter(&self) -> impl Iterator<Item = &PortRange> + Clone

Returns an iterator for PortRanges.

fn display(&self) -> Option<impl Display + '_>

If set of ranges is non-empty, returns a string representation

We don’t provide a normal Display impl, because it would have to emit the empty string for an empty range, which would be quite odd.

When displaying accept/reject ranges, the caller needs to choose between prepending accept and prepending reject.

Trait Implementations

impl Clone for PortRanges

fn clone(&self) -> PortRanges

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PortRanges

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

Formats the value using the given formatter.

impl Default for PortRanges

fn default() -> PortRanges

Returns the “default value” for a type.

impl Eq for PortRanges

impl FromIterator<u16> for PortRanges

fn from_iter<I: IntoIterator<Item = u16>>(iter: I) -> Self

Creates a value from an iterator.

impl FromStr for PortRanges

type Err = PolicyError

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 PortRanges

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 ItemArgumentParseable for PortRanges

fn from_args<'s>(args: &mut ArgumentStream<'s>) -> Result<Self, ArgumentError>

PortRanges argument parser which is odd because port ranges are syntactically a single argument although semantically multiple ones.

impl PartialEq for PortRanges

fn eq(&self, other: &PortRanges) -> 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 StructuralPartialEq for PortRanges