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Limit flood advert packet forwarding for roomservers as well

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This commit is contained in:
Matthias Wientapper
2026-01-09 20:47:09 +01:00
parent 6f1e01a750
commit 3088d1862a
1 changed files with 9 additions and 0 deletions
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9
examples/simple_room_server/MyMesh.cpp
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@@ -277,6 +277,15 @@ uint32_t MyMesh::getDirectRetransmitDelay(const mesh::Packet *packet) {
bool MyMesh::allowPacketForward(const mesh::Packet *packet) {
if (_prefs.disable_fwd) return false;
if (packet->isRouteFlood() && packet->getPathHashCount() >= _prefs.flood_max) return false;
// Limit flood advert paket forwarding using a probabilistic reduction defined by P(h) = 0.308^(hops-1)
// https://github.com/meshcore-dev/MeshCore/issues/1223
double_t roll_dice = (double)rand() / RAND_MAX;
double_t forw_prob = pow(0.308, packet->path_len - 1);
if (packet->getPayloadType() == PAYLOAD_TYPE_ADVERT && packet->isRouteFlood() && roll_dice > forw_prob)
return false;
// all other packets
return true;
}