pub trait NetlinkSerializable {
// Required methods
fn message_type(&self) -> u16;
fn buffer_len(&self) -> usize;
fn serialize(&self, buffer: &mut [u8]);
}Required Methods§
fn message_type(&self) -> u16
Sourcefn buffer_len(&self) -> usize
fn buffer_len(&self) -> usize
Return the length of the serialized data.
Most netlink messages are encoded following a
TLV scheme
and this library takes advantage of this by pre-allocating
buffers of the appropriate size when serializing messages,
which is why buffer_len is needed.
Sourcefn serialize(&self, buffer: &mut [u8])
fn serialize(&self, buffer: &mut [u8])
Serialize this types and write the serialized data into the given
buffer. buffer’s length is exactly InnerMessage::buffer_len().
It means that if InnerMessage::buffer_len() is buggy and does not
return the appropriate length, bad things can happen:
- if
buffer_len()returns a value smaller than the actual data,emit()may panics - if
buffer_len()returns a value bigger than the actual data, the buffer will contain garbage
§Panic
This method panics if the buffer is not big enough.