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Revert cross-preset default-key bridging with UDP and disable UDP by default (#8130)

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* Revert cross-preset UDP bridging

* Don't enable UDP by default
This commit is contained in:
Ben Meadors 2025-09-27 07:09:24 -05:00 committed by GitHub
parent bc3db1b5c1
commit ab00e991f6
No known key found for this signature in database
GPG Key ID: B5690EEEBB952194
2 changed files with 1 additions and 30 deletions
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2
src/mesh/NodeDB.cpp
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@ -701,7 +701,7 @@ void NodeDB::installDefaultConfig(bool preserveKey = false)
#ifdef USERPREFS_NETWORK_ENABLED_PROTOCOLS
config.network.enabled_protocols = USERPREFS_NETWORK_ENABLED_PROTOCOLS;
#else
config.network.enabled_protocols = 1;
config.network.enabled_protocols = 0;
#endif
#endif

29
src/mesh/Router.cpp
View File

@ -483,35 +483,6 @@ DecodeState perhapsDecode(meshtastic_MeshPacket *p)
}
}
#if HAS_UDP_MULTICAST
// Fallback: for UDP multicast, try default preset names with default PSK if normal channel match failed
if (!decrypted && p->transport_mechanism == meshtastic_MeshPacket_TransportMechanism_TRANSPORT_MULTICAST_UDP) {
if (channels.setDefaultPresetCryptoForHash(p->channel)) {
memcpy(bytes, p->encrypted.bytes, rawSize);
crypto->decrypt(p->from, p->id, rawSize, bytes);
meshtastic_Data decodedtmp;
memset(&decodedtmp, 0, sizeof(decodedtmp));
if (pb_decode_from_bytes(bytes, rawSize, &meshtastic_Data_msg, &decodedtmp) &&
decodedtmp.portnum != meshtastic_PortNum_UNKNOWN_APP) {
p->decoded = decodedtmp;
p->which_payload_variant = meshtastic_MeshPacket_decoded_tag;
// Map to our local default channel index (name+PSK default), not necessarily primary
ChannelIndex defaultIndex = channels.getPrimaryIndex();
for (ChannelIndex i = 0; i < channels.getNumChannels(); ++i) {
if (channels.isDefaultChannel(i)) {
defaultIndex = i;
break;
}
}
chIndex = defaultIndex;
decrypted = true;
} else {
LOG_WARN("UDP fallback decode attempted but failed for hash 0x%x", p->channel);
}
}
}
#endif
if (decrypted) {
// parsing was successful
p->channel = chIndex; // change to store the index instead of the hash