Struct CoordsRequired 

pub struct CoordsRequired {
    pub dest_addr: NodeAddr,
    pub reporter: NodeAddr,
}

Link-layer error signal indicating router cache miss.

Generated by a transit router when it cannot forward a SessionDatagram due to missing cached coordinates for the destination. Carried inside a new SessionDatagram addressed back to the original source (src_addr=reporter, dest_addr=original_source). Plaintext — not end-to-end encrypted, since the transit router has no session with the source.

Wire Format

Offset	Field	Size	Description
0	msg_type	1 byte	0x20
1	flags	1 byte	Reserved
2	dest_addr	16 bytes	The node_addr we couldn’t route to
18	reporter	16 bytes	NodeAddr of reporting router

Payload: 34 bytes

Fields

dest_addr: NodeAddr

Destination that couldn’t be routed.

reporter: NodeAddr

Router reporting the miss.

Implementations

impl CoordsRequired

pub fn new(dest_addr: NodeAddr, reporter: NodeAddr) -> Self

Create a new CoordsRequired error.

pub fn encode(&self) -> Vec<u8>

Encode as wire format (4-byte FSP prefix + msg_type + body).

Error signals use phase=0x0 with U flag set.

pub fn decode(payload: &[u8]) -> Result<Self, ProtocolError>

Decode from wire format (after FSP prefix and msg_type byte consumed).

Trait Implementations

impl Clone for CoordsRequired

fn clone(&self) -> CoordsRequired

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CoordsRequired

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

Formats the value using the given formatter.