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Shorter nodeinfo timeout redux (#4458)

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* Add shorterTimeout bool to sendOurNodeInfo

* Respond to likely PKI decode errors with a quick nodeinfo

* Protbufs

* Move to PKI_UNKNOWN_PUBKEY for PKI decode error
This commit is contained in:
Jonathan Bennett
2024-08-14 17:17:53 -05:00
committed by GitHub
parent 8ce1c07c4e
commit 8ef72a5c08
5 changed files with 34 additions and 10 deletions
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14
src/mesh/ReliableRouter.cpp
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@@ -4,6 +4,7 @@
#include "MeshTypes.h"
#include "configuration.h"
#include "mesh-pb-constants.h"
#include "modules/NodeInfoModule.h"
// ReliableRouter::ReliableRouter() {}
@@ -109,13 +110,24 @@ void ReliableRouter::sniffReceived(const meshtastic_MeshPacket *p, const meshtas
LOG_DEBUG("Some other module has replied to this message, no need for a 2nd ack\n");
} else if (p->which_payload_variant == meshtastic_MeshPacket_decoded_tag) {
sendAckNak(meshtastic_Routing_Error_NONE, getFrom(p), p->id, p->channel, p->hop_start, p->hop_limit);
} else if (p->which_payload_variant == meshtastic_MeshPacket_encrypted_tag && p->channel == 0 &&
(nodeDB->getMeshNode(p->from) != nullptr || nodeDB->getMeshNode(p->from)->user.public_key.size == 0)) {
// This looks like it might be a PKI packet from an unknown node, so send PKI_UNKNOWN_PUBKEY
sendAckNak(meshtastic_Routing_Error_PKI_UNKNOWN_PUBKEY, getFrom(p), p->id, channels.getPrimaryIndex(),
p->hop_start, p->hop_limit);
} else {
// Send a 'NO_CHANNEL' error on the primary channel if want_ack packet destined for us cannot be decoded
sendAckNak(meshtastic_Routing_Error_NO_CHANNEL, getFrom(p), p->id, channels.getPrimaryIndex(), p->hop_start,
p->hop_limit);
}
}
if (p->which_payload_variant == meshtastic_MeshPacket_decoded_tag && c &&
c->error_reason == meshtastic_Routing_Error_PKI_UNKNOWN_PUBKEY) {
if (owner.public_key.size == 32) {
LOG_INFO("This seems like a remote PKI decrypt failure, so send a NodeInfo");
nodeInfoModule->sendOurNodeInfo(p->from, false, p->channel, true);
}
}
// We consider an ack to be either a !routing packet with a request ID or a routing packet with !error
PacketId ackId = ((c && c->error_reason == meshtastic_Routing_Error_NONE) || !c) ? p->decoded.request_id : 0;