Meshtastic DMs were falling back to a channel broadcast, so every node
on the LoRa channel saw a "direct" message. Send a directed MeshPacket
(to = node num, decoded from the synthetic pubkey's node-id bytes)
instead — the Meshtastic analog of the meshcore CMD_SEND_TXT_MSG fix.
DMs now reach only the recipient; firmware auto-PKC-encrypts them
end-to-end once NodeInfo keys are exchanged.
Capture E2E status at the driver level (no shared-type/UI change):
- learn each peer's real Curve25519 key from User.public_key (field 8)
and inbound MeshPacket.public_key (16), kept in a side-map separate
from the synthetic routing key so unicast routing is untouched
- detect inbound MeshPacket.pki_encrypted (17) to tell a true E2E DM
from a channel-PSK fallback
- peer_is_pkc_capable() seam for a future mesh-tab E2E badge
Hot-swap preserved: no dispatched MeshRadioDevice signature or the
shared ParsedContact changed, so meshcore and meshtastic stay
interchangeable behind the listener.
Adds tests/multinode/meshtastic.sh, a two/three-radio on-air parity
harness (detect, discover, DM round-trip, DM privacy, channel
broadcast, typed envelope, reachability).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
- DMs now use native meshcore unicast (CMD_SEND_TXT_MSG) instead of @DM2 channel
broadcasts: private (E2E-encrypted to the recipient pubkey by firmware), off the
public channel, and decodable by stock clients. Plain text (split, not MC-chunked)
to non-archipelago contacts; typed envelopes to archy peers.
- !ai replies now DM the asker privately (RadioDm) instead of broadcasting on ch0.
- Auto contact-import: a heard advert (PUSH_CONTACT_ADVERT/0x80, 32-byte pubkey) is
added via CMD_ADD_UPDATE_CONTACT (0x09) so contacts appear without a flood advert.
- clear-all now DELETES firmware contacts via CMD_REMOVE_CONTACT (0x0F) instead of
blocklisting; blocking filter removed entirely. Wiped contacts return when reachable.
- Contact reachability: MeshPeer carries last_advert + reachable (path-based); UI shows
a reachability dot.
- Peers list: contact search box (filter by name/DID/npub/pubkey) with a clear button.
- send_message routes stock contacts as plain native text (fixes garbled envelopes).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
