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61 lines
2.3 KiB
C++
61 lines
2.3 KiB
C++
#include "FloodingRouter.h"
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#include "configuration.h"
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#include "mesh-pb-constants.h"
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FloodingRouter::FloodingRouter() {}
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/**
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* Send a packet on a suitable interface. This routine will
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* later free() the packet to pool. This routine is not allowed to stall.
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* If the txmit queue is full it might return an error
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*/
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ErrorCode FloodingRouter::send(MeshPacket *p)
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{
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// Add any messages _we_ send to the seen message list (so we will ignore all retransmissions we see)
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wasSeenRecently(p); // FIXME, move this to a sniffSent method
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return Router::send(p);
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}
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bool FloodingRouter::shouldFilterReceived(MeshPacket *p)
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{
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if (wasSeenRecently(p)) { // Note: this will also add a recent packet record
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printPacket("Ignoring incoming msg, because we've already seen it", p);
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return true;
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}
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return Router::shouldFilterReceived(p);
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}
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void FloodingRouter::sniffReceived(const MeshPacket *p, const Routing *c)
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{
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PacketId ackId = ((c && c->error_reason == Routing_Error_NONE) || !c) ? p->decoded.request_id : 0;
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if (ackId && p->to != getNodeNum()) {
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// do not flood direct message that is ACKed
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DEBUG_MSG("Receiving an ACK not for me, but don't need to rebroadcast this direct message anymore.\n");
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Router::cancelSending(p->to, p->decoded.request_id); // cancel rebroadcast for this DM
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} else if ((p->to != getNodeNum()) && (p->hop_limit > 0) && (getFrom(p) != getNodeNum())) {
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if (p->id != 0) {
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if (config.device.role != Config_DeviceConfig_Role_CLIENT_MUTE) {
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MeshPacket *tosend = packetPool.allocCopy(*p); // keep a copy because we will be sending it
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tosend->hop_limit--; // bump down the hop count
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printPacket("Rebroadcasting received floodmsg to neighbors", p);
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// Note: we are careful to resend using the original senders node id
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// We are careful not to call our hooked version of send() - because we don't want to check this again
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Router::send(tosend);
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} else {
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DEBUG_MSG("Not rebroadcasting. Role = Role_ClientMute\n");
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}
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} else {
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DEBUG_MSG("Ignoring a simple (0 id) broadcast\n");
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}
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}
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// handle the packet as normal
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Router::sniffReceived(p, c);
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}
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