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4575352d8c
* Initial NODENUM_BROADCAST_NO_LORA implementation with NeighborInfo module * isBroadcast * Trunkt
85 lines
3.6 KiB
C++
85 lines
3.6 KiB
C++
#include "RoutingModule.h"
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#include "Default.h"
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#include "MeshService.h"
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#include "NodeDB.h"
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#include "Router.h"
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#include "configuration.h"
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#include "main.h"
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RoutingModule *routingModule;
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bool RoutingModule::handleReceivedProtobuf(const meshtastic_MeshPacket &mp, meshtastic_Routing *r)
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{
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printPacket("Routing sniffing", &mp);
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router->sniffReceived(&mp, r);
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bool maybePKI = mp.which_payload_variant == meshtastic_MeshPacket_encrypted_tag && mp.channel == 0 && !isBroadcast(mp.to);
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// Beginning of logic whether to drop the packet based on Rebroadcast mode
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if (mp.which_payload_variant == meshtastic_MeshPacket_encrypted_tag &&
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(config.device.rebroadcast_mode == meshtastic_Config_DeviceConfig_RebroadcastMode_LOCAL_ONLY ||
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config.device.rebroadcast_mode == meshtastic_Config_DeviceConfig_RebroadcastMode_KNOWN_ONLY)) {
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if (!maybePKI)
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return false;
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if ((nodeDB->getMeshNode(mp.from) == NULL || !nodeDB->getMeshNode(mp.from)->has_user) &&
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(nodeDB->getMeshNode(mp.to) == NULL || !nodeDB->getMeshNode(mp.to)->has_user))
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return false;
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}
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// FIXME - move this to a non promsicious PhoneAPI module?
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// Note: we are careful not to send back packets that started with the phone back to the phone
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if ((isBroadcast(mp.to) || isToUs(&mp)) && (mp.from != 0)) {
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printPacket("Delivering rx packet", &mp);
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service->handleFromRadio(&mp);
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}
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return false; // Let others look at this message also if they want
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}
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meshtastic_MeshPacket *RoutingModule::allocReply()
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{
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if (config.device.role == meshtastic_Config_DeviceConfig_Role_REPEATER)
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return NULL;
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assert(currentRequest);
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// We only consider making replies if the request was a legit routing packet (not just something we were sniffing)
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if (currentRequest->decoded.portnum == meshtastic_PortNum_ROUTING_APP) {
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assert(0); // 1.2 refactoring fixme, Not sure if anything needs this yet?
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// return allocDataProtobuf(u);
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}
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return NULL;
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}
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void RoutingModule::sendAckNak(meshtastic_Routing_Error err, NodeNum to, PacketId idFrom, ChannelIndex chIndex, uint8_t hopStart,
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uint8_t hopLimit)
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{
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auto p = allocAckNak(err, to, idFrom, chIndex, hopStart, hopLimit);
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router->sendLocal(p); // we sometimes send directly to the local node
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}
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uint8_t RoutingModule::getHopLimitForResponse(uint8_t hopStart, uint8_t hopLimit)
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{
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if (hopStart != 0) {
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// Hops used by the request. If somebody in between running modified firmware modified it, ignore it
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uint8_t hopsUsed = hopStart < hopLimit ? config.lora.hop_limit : hopStart - hopLimit;
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if (hopsUsed > config.lora.hop_limit) {
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// In event mode, we never want to send packets with more than our default 3 hops.
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#if !(EVENTMODE) // This falls through to the default.
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return hopsUsed; // If the request used more hops than the limit, use the same amount of hops
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#endif
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} else if ((uint8_t)(hopsUsed + 2) < config.lora.hop_limit) {
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return hopsUsed + 2; // Use only the amount of hops needed with some margin as the way back may be different
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}
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}
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return Default::getConfiguredOrDefaultHopLimit(config.lora.hop_limit); // Use the default hop limit
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}
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RoutingModule::RoutingModule() : ProtobufModule("routing", meshtastic_PortNum_ROUTING_APP, &meshtastic_Routing_msg)
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{
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isPromiscuous = true;
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// moved the ReboradcastMode logic into handleReceivedProtobuf
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// LocalOnly requires either the from or to to be a known node
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// knownOnly specifically requires the from to be a known node.
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encryptedOk = true;
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} |