Module discovery 

Bootstrap handoff types.

These types model the boundary between an external rendezvous/bootstrap runtime and the core FIPS transport/handshake stack. The rendezvous side owns Nostr/STUN/UDP hole punching; once a direct UDP path is established, it hands the live socket and selected remote endpoint to FIPS so the existing Noise/FMP transport path can take over.

Modules

lan

LAN peer discovery via mDNS / DNS-SD (RFC 6762 / RFC 6763).

local

Same-host FIPS rendezvous and authenticated capability directory.

nostr

Structs

BootstrapHandoffResult

Result of handing an established traversal session into FIPS.

EstablishedTraversal

Established UDP traversal ready to be handed into FIPS.

Constants

PUNCH_ACK_MAGIC

Punch-probe-ack magic (“NPTA”, network byte order). Same filter as PUNCH_MAGIC.

PUNCH_MAGIC

Punch-probe magic (“NPTC”, network byte order). First byte 0x4E collides with FMP’s prefix-version high-nibble check, so the UDP transport silently filters packets carrying this magic to keep post-adoption handshake logs clean. Defined at the top-level discovery module so the UDP filter and the nostr submodule’s punch sender share the same constant.

Functions

is_punch_packet

Returns true if the first four bytes of data match a punch-probe or punch-ack magic. Used by the UDP transport’s receive loop to silently drop stray probes that arrive on an adopted socket after the remote peer’s punch attempt has already timed out.