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fix: repeater only responds to traces it's part of #15

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fix: repeater only responds to traces it's part of #15

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901f7fa
fix: repeater only responds to traces it's part of
H3wastooshort Jul 21, 2026
c73277a
fixup: remove stuff i left in by accident
H3wastooshort Jul 21, 2026
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15 changes: 12 additions & 3 deletions src/main.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -2946,9 +2946,18 @@ void processReceivedPacket(MCPacket* pkt) {
else if (pkt->header.getPayloadType() == MC_PAYLOAD_PATH_TRACE) {
// Add our SNR to the path (SNR * 4 as signed byte)
if (pkt->pathLen < MC_MAX_PATH_SIZE) {
pkt->path[pkt->pathLen++] = (int8_t)(pkt->snr);
// Forward the trace packet
txQueue.add(pkt);
//crossreferenced with https://github.com/meshcore-dev/MeshCore/blob/a3a1aa5e3be34b42d8ac8c2cc244d30af6cdd71e/src/Mesh.cpp#L42
uint8_t flags = pkt->payload[8];
uint8_t path_hash_size = flags & 0x03; // NEW v1.11+: lower 2 bits is path hash size
uint16_t offset = (uint16_t)pkt->pathLen << path_hash_size;
bool forward_trace = memcmp(&pkt->payload[9 + offset], nodeIdentity.getPublicKey(), 1 << path_hash_size) == 0;
LOG(TAG_PING " f%d hsz%d o%d id%02x\n\r",forward_trace,path_hash_size,offset,pkt->payload[9 + offset]);
if (forward_trace) { //only forward traces we're part of
LOG(TAG_PING " fwd\r\n");
pkt->path[pkt->pathLen++] = (int8_t)(pkt->snr);
// Forward the trace packet
txQueue.add(pkt);
}
}
}
// Parse and display ADVERT info
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