Struct windivert_sys::WinDivertFlags

#[repr(transparent)]
pub struct WinDivertFlags(_);

Flag type required by WinDivertOpen(). It follows a builder like style.

Different flags affect how the opened handle behaves. The following flags are supported:

• sniff: This flag opens the WinDivert handle in packet sniffing mode. In packet sniffing mode the original packet is not dropped-and-diverted (the default) but copied-and-diverted. This mode is useful for implementing packet sniffing tools similar to those applications that currently use Winpcap.
• drop: This flag indicates that the user application does not intend to read matching packets with recv() (or any of it’s variants), instead the packets should be silently dropped. This is useful for implementing simple packet filters using the WinDivert filter language.
• recv_only: This flags forces the handle into receive only mode which effectively disables send() (and any of it’s variants). This means that it is possible to block/capture packets or events but not inject them.
• send_only: This flags forces the handle into send only mode which effectively disables recv() (and any of it’s variants). This means that it is possible to inject packets or events, but not block/capture them.
• no_installs: This flags causes WinDivertOpen to fail with ERROR_SERVICE_DOES_NOT_EXIST (1060) if the WinDivert driver is not already installed. This flag is useful for querying the WinDivert driver state using Reflect layer.
• fragments: If set, the handle will capture inbound IP fragments, but not inbound reassembled IP packets. Otherwise, if not set (the default), the handle will capture inbound reassembled IP packets, but not inbound IP fragments. This flag only affects inbound packets at the Network layer, else the flag is ignored. Note that any combination of (snif | drop) or (recv_only | send_only) are considered invalid.

Some layers have mandatory flags:

• WinDivertLayer::Flow: (sniff | recv_only)
• WinDivertLayer::Reflect: (sniff | recv_only)

Implementations

impl WinDivertFlags

WinDivertFlags builder methods.

pub fn new() -> Self

Creates a new flag field with all options unset.

pub fn set_sniff(self) -> Self

Sets sniff flag.

pub fn unset_sniff(self) -> Self

Unsets sniff flag.

pub fn set_drop(self) -> Self

Sets drop flag.

pub fn unset_drop(self) -> Self

Unsets drop flag.

pub fn set_recv_only(self) -> Self

Sets recv_only flag

pub fn unset_recv_only(self) -> Self

Unsets recv_only flag

pub fn set_send_only(self) -> Self

Sets send_only flag.

pub fn unset_send_only(self) -> Self

Unsets send_only flag.

pub fn set_no_installs(self) -> Self

Sets no_installs flag.

pub fn unset_no_installs(self) -> Self

Unsets no_installs flag.

pub fn set_fragments(self) -> Self

Sets fragments flag.

pub fn unset_fragments(self) -> Self

Unsets fragments flag.

Trait Implementations

impl Clone for WinDivertFlags

fn clone(&self) -> WinDivertFlags

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for WinDivertFlags

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

Formats the value using the given formatter.

impl Default for WinDivertFlags

fn default() -> WinDivertFlags

Returns the “default value” for a type.

impl From<WinDivertFlags> for u64

fn from(flags: WinDivertFlags) -> Self

Performs the conversion.

impl Copy for WinDivertFlags