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Add PKI logiv to KNOWN_ONLY and LOCAL_ONLY routing modes.

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This commit is contained in:
Jonathan Bennett 2024-08-16 19:37:28 -05:00
parent cec8233cd1
commit 6eabbaf432
1 changed files with 18 additions and 2 deletions
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20
src/modules/RoutingModule.cpp
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@ -13,6 +13,19 @@ bool RoutingModule::handleReceivedProtobuf(const meshtastic_MeshPacket &mp, mesh
printPacket("Routing sniffing", &mp);
router->sniffReceived(&mp, r);
bool maybePKI =
mp.which_payload_variant == meshtastic_MeshPacket_encrypted_tag && mp.channel == 0 && mp.to != NODENUM_BROADCAST;
// Beginning of logic whether to drop the packet based on Rebroadcast mode
if (mp.which_payload_variant == meshtastic_MeshPacket_encrypted_tag &&
(config.device.rebroadcast_mode == meshtastic_Config_DeviceConfig_RebroadcastMode_LOCAL_ONLY ||
config.device.rebroadcast_mode == meshtastic_Config_DeviceConfig_RebroadcastMode_KNOWN_ONLY)) {
if (!maybePKI)
return false;
if ((nodeDB->getMeshNode(mp.from) == NULL || !nodeDB->getMeshNode(mp.from)->has_user) &&
(nodeDB->getMeshNode(mp.to) == NULL || !nodeDB->getMeshNode(mp.to)->has_user))
return false;
}
// FIXME - move this to a non promsicious PhoneAPI module?
// Note: we are careful not to send back packets that started with the phone back to the phone
if ((mp.to == NODENUM_BROADCAST || mp.to == nodeDB->getNodeNum()) && (mp.from != 0)) {
@ -65,6 +78,9 @@ uint8_t RoutingModule::getHopLimitForResponse(uint8_t hopStart, uint8_t hopLimit
RoutingModule::RoutingModule() : ProtobufModule("routing", meshtastic_PortNum_ROUTING_APP, &meshtastic_Routing_msg)
{
isPromiscuous = true;
encryptedOk = config.device.rebroadcast_mode != meshtastic_Config_DeviceConfig_RebroadcastMode_LOCAL_ONLY &&
config.device.rebroadcast_mode != meshtastic_Config_DeviceConfig_RebroadcastMode_KNOWN_ONLY;
// moved the ReboradcastMode logic into handleReceivedProtobuf
// LocalOnly requires either the from or to to be a known node
// knownOnly specifically requires the from to be a known node.
encryptedOk = true;
}