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Integration of upstrem PR #1338

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This commit is contained in:
Matthias Wientapper
2026-03-08 10:10:01 +01:00
parent 6b781b1e9c 853ee62eb0
commit 8d0a4b944c
4 changed files with 42 additions and 3 deletions
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13
examples/simple_room_server/MyMesh.cpp
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@@ -276,7 +276,17 @@ 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;
if (packet->isRouteFlood() && packet->path_len >= _prefs.flood_max) return false;
// Limit flood advert packet forwarding using a probabilistic reduction defined by P(h) = base^(hops-1)
// https://github.com/meshcore-dev/MeshCore/issues/1223
if (packet->getPayloadType() == PAYLOAD_TYPE_ADVERT && packet->isRouteFlood()) {
double roll_dice = (double)rand() / RAND_MAX;
double forw_prob = pow(_prefs.flood_advert_base, packet->path_len - 1);
if (roll_dice > forw_prob)
return false;
}
return true;
}
@@ -615,6 +625,7 @@ MyMesh::MyMesh(mesh::MainBoard &board, mesh::Radio &radio, mesh::MillisecondCloc
_prefs.disable_fwd = 1;
_prefs.advert_interval = 1; // default to 2 minutes for NEW installs
_prefs.flood_advert_interval = 12; // 12 hours
_prefs.flood_advert_base = 0.308f;
_prefs.flood_max = 64;
_prefs.interference_threshold = 0; // disabled
#ifdef ROOM_PASSWORD