Enum PortDirection 

pub enum PortDirection {
    None,
    FixedSrc(Port),
    FixedDest(Port),
    FixedBoth(Port, Port),
}

Whether to fix the src, dest or both ports for a trace.

Variants

None

Trace without any source or destination port (i.e. for ICMP tracing).

FixedSrc(Port)

Trace from a fixed source port to a variable destination port (i.e. 5000 -> *).

This is the default direction for UDP tracing.

FixedDest(Port)

Trace from a variable source port to a fixed destination port (i.e. * -> 80).

This is the default direction for TCP tracing.

FixedBoth(Port, Port)

Trace from a fixed source port to a fixed destination port (i.e. 5000 -> 80).

When both ports are fixed another element of the IP header is required to vary per probe such that probes can be identified. Typically, this is only used for UDP, whereby the checksum is manipulated by adjusting the payload and therefore used as the identifier.

Note that this case is not currently implemented.

Implementations

impl PortDirection

pub const fn new_fixed_src(src: u16) -> Self

pub const fn new_fixed_dest(dest: u16) -> Self

pub const fn new_fixed_both(src: u16, dest: u16) -> Self

pub const fn src(&self) -> Option<Port>

pub const fn dest(&self) -> Option<Port>

Trait Implementations

impl Clone for PortDirection

fn clone(&self) -> PortDirection

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PortDirection

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

Formats the value using the given formatter.

impl PartialEq for PortDirection

fn eq(&self, other: &PortDirection) -> 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 Copy for PortDirection

impl Eq for PortDirection

impl StructuralPartialEq for PortDirection