+ case REQ_KEY: {
+ if(!node_read_ecdsa_public_key(from)) {
+ logger(DEBUG_PROTOCOL, LOG_DEBUG, "No ECDSA key known for %s (%s)", from->name, from->hostname);
+ send_request(from->nexthop->connection, "%d %s %s %d", REQ_KEY, myself->name, from->name, REQ_PUBKEY);
+ return true;
+ }
+
+ if(from->sptps.label)
+ logger(DEBUG_ALWAYS, LOG_DEBUG, "Got REQ_KEY from %s while we already started a SPTPS session!", from->name);
+
+ char buf[MAX_STRING_SIZE];
+ if(sscanf(request, "%*d %*s %*s %*d " MAX_STRING, buf) != 1) {
+ logger(DEBUG_ALWAYS, LOG_ERR, "Got bad %s from %s (%s): %s", "REQ_SPTPS_START", from->name, from->hostname, "invalid SPTPS data");
+ return true;
+ }
+ int len = b64decode(buf, buf, strlen(buf));
+
+ char label[25 + strlen(from->name) + strlen(myself->name)];
+ snprintf(label, sizeof label, "tinc UDP key expansion %s %s", from->name, myself->name);
+ sptps_stop(&from->sptps);
+ from->status.validkey = false;
+ from->status.waitingforkey = true;
+ from->last_req_key = time(NULL);
+ sptps_start(&from->sptps, from, false, true, myself->connection->ecdsa, from->ecdsa, label, sizeof label, send_sptps_data, receive_sptps_record);
+ sptps_receive_data(&from->sptps, buf, len);
+ return true;
+ }
+
+ case REQ_SPTPS: {
+ if(!from->status.validkey) {
+ logger(DEBUG_PROTOCOL, LOG_ERR, "Got REQ_SPTPS from %s (%s) but we don't have a valid key yet", from->name, from->hostname);
+ return true;
+ }
+
+ char buf[MAX_STRING_SIZE];
+ if(sscanf(request, "%*d %*s %*s %*d " MAX_STRING, buf) != 1) {
+ logger(DEBUG_ALWAYS, LOG_ERR, "Got bad %s from %s (%s): %s", "REQ_SPTPS", from->name, from->hostname, "invalid SPTPS data");
+ return true;
+ }
+ int len = b64decode(buf, buf, strlen(buf));
+ sptps_receive_data(&from->sptps, buf, len);
+ return true;
+ }
+