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Add cli config flood.advert.base

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0 = forwarding flood adverts off
1 = forwarding flood adverts on (unrestricted)
0.308 (default) = prob. forwarding according to #1338
This commit is contained in:
Matthias Wientapper
2026-01-13 23:06:27 +01:00
parent 0b947f9d1b
commit c9d6927d26
4 changed files with 24 additions and 4 deletions
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3
examples/simple_repeater/MyMesh.cpp
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@@ -393,7 +393,7 @@ bool MyMesh::allowPacketForward(const mesh::Packet *packet) {
// 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);
double_t forw_prob = pow(_prefs.flood_advert_base, packet->path_len - 1);
if (packet->getPayloadType() == PAYLOAD_TYPE_ADVERT && packet->isRouteFlood() && roll_dice > forw_prob)
return false;
@@ -791,6 +791,7 @@ MyMesh::MyMesh(mesh::MainBoard &board, mesh::Radio &radio, mesh::MillisecondCloc
_prefs.tx_power_dbm = LORA_TX_POWER;
_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

3
examples/simple_room_server/MyMesh.cpp
View File

@@ -279,7 +279,7 @@ bool MyMesh::allowPacketForward(const mesh::Packet *packet) {
// 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);
double_t forw_prob = pow(_prefs.flood_advert_base, packet->path_len - 1);
if (packet->getPayloadType() == PAYLOAD_TYPE_ADVERT && packet->isRouteFlood() && roll_dice > forw_prob)
return false;
@@ -622,6 +622,7 @@ 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