Struct SshLayer 

pub struct SshLayer {
    pub index: LayerIndex,
}

SSH protocol layer view into a packet buffer.

Fields

index: LayerIndex

Implementations

impl SshLayer

pub fn is_version_exchange(&self, buf: &[u8]) -> bool

Check if this SSH data is a version exchange (starts with “SSH-”).

pub fn version_string<'a>(&self, buf: &'a [u8]) -> Option<&'a str>

Extract the version string from a version exchange message.

Returns the version string without the trailing CRLF.

pub fn packet_length(&self, buf: &[u8]) -> Result<u32, FieldError>

Read the packet_length field (first 4 bytes of binary packet).

pub fn padding_length(&self, buf: &[u8]) -> Result<u8, FieldError>

Read the padding_length field (byte at offset 4 of binary packet).

pub fn message_type(&self, buf: &[u8]) -> Result<Option<u8>, FieldError>

Read the message type (first byte of payload, at offset 5).

pub fn payload_data<'a>(&self, buf: &'a [u8]) -> &'a [u8]

Get the payload data (after padding_length byte, before random_padding).

pub fn get_field( &self, buf: &[u8], name: &str, ) -> Option<Result<FieldValue, FieldError>>

Get a field value by name.

pub fn set_field( &self, _buf: &mut [u8], _name: &str, _value: FieldValue, ) -> Option<Result<(), FieldError>>

Set a field value by name (limited support for SSH).

pub fn field_names(&self) -> &'static [&'static str]

Get field names.

Trait Implementations

impl Clone for SshLayer

fn clone(&self) -> SshLayer

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SshLayer

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

Formats the value using the given formatter.

impl From<SshLayer> for LayerEnum

fn from(v: SshLayer) -> LayerEnum

Converts to this type from the input type.

impl Layer for SshLayer

fn kind(&self) -> LayerKind

Get the kind of this layer

fn summary(&self, data: &[u8]) -> String

Get a human-readable summary of this layer

fn header_len(&self, data: &[u8]) -> usize

Get the header length for this layer

fn hashret(&self, _data: &[u8]) -> Vec<u8>

Compute a hash for packet matching.

fn field_names(&self) -> &'static [&'static str]

Get the list of field names for this layer

fn answers(&self, _data: &[u8], _other: &Self, _other_data: &[u8]) -> bool

Check if this packet answers another packet.

fn extract_padding<'a>(&self, data: &'a [u8]) -> (&'a [u8], &'a [u8])

Extract padding from the packet.

impl LayerDispatch for SshLayer

fn dispatch_kind(&self) -> LayerKind

Get the kind of this layer.

fn dispatch_index(&self) -> &LayerIndex

Get the layer index (start/end offsets).

fn dispatch_summary(&self, buf: &[u8]) -> String

Get a human-readable summary.

fn dispatch_header_len(&self, buf: &[u8]) -> usize

Get the header length in bytes.

fn dispatch_hashret(&self, buf: &[u8]) -> Vec<u8>

Compute a hash for packet matching.

fn dispatch_field_names(&self) -> &'static [&'static str]

Get field names for this layer type.

fn dispatch_get_field( &self, buf: &[u8], name: &str, ) -> Option<Result<FieldValue, FieldError>>

Get a field value by name.

fn dispatch_set_field( &self, buf: &mut [u8], name: &str, value: FieldValue, ) -> Option<Result<(), FieldError>>

Set a field value by name.

fn dispatch_show_fields(&self, buf: &[u8]) -> Vec<(&'static str, String)>

Get show-fields output.

impl TryInto<SshLayer> for LayerEnum

type Error = &'static str

The type returned in the event of a conversion error.

fn try_into(self) -> Result<SshLayer, <Self as TryInto<SshLayer>>::Error>

Performs the conversion.