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* Mesh::onAnonDataRecv() slight optimisation, so that shared-secret calc doesn't need to be repeated

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* SensporMesh: req_type now optionally encoded in anon_req payload (so can send various requests without a prior login)
This commit is contained in:
Scott Powell
2025-07-07 20:41:28 +10:00
parent 7fb7b69bbc
commit 810b1f8fe7
6 changed files with 76 additions and 60 deletions
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6
examples/simple_room_server/main.cpp
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@@ -188,7 +188,6 @@ class MyMesh : public mesh::Mesh, public CommonCLICallbacks {
newClient->id = id;
newClient->out_path_len = -1; // initially out_path is unknown
newClient->last_timestamp = 0;
self_id.calcSharedSecret(newClient->secret, id); // calc ECDH shared secret
return newClient;
}
@@ -432,8 +431,8 @@ protected:
return true;
}
void onAnonDataRecv(mesh::Packet* packet, uint8_t type, const mesh::Identity& sender, uint8_t* data, size_t len) override {
if (type == PAYLOAD_TYPE_ANON_REQ) { // received an initial request by a possible admin client (unknown at this stage)
void onAnonDataRecv(mesh::Packet* packet, const uint8_t* secret, const mesh::Identity& sender, uint8_t* data, size_t len) override {
if (packet->getPayloadType() == PAYLOAD_TYPE_ANON_REQ) { // received an initial request by a possible admin client (unknown at this stage)
uint32_t sender_timestamp, sender_sync_since;
memcpy(&sender_timestamp, data, 4);
memcpy(&sender_sync_since, &data[4], 4); // sender's "sync messags SINCE x" timestamp
@@ -465,6 +464,7 @@ protected:
client->sync_since = sender_sync_since;
client->pending_ack = 0;
client->push_failures = 0;
memcpy(client->secret, secret, PUB_KEY_SIZE);
uint32_t now = getRTCClock()->getCurrentTime();
client->last_activity = now;