Merge branch 'main' into airgapped

feeds/tip/cloud_discovery/files/usr/bin/cloud_discovery

@@ -273,6 +273,22 @@ function interval_handler() {
 		if (!time_is_valid())
 			return;
 
+		discovery_method = DISCOVER_DHCP;
+		if (discover_dhcp())
+			return;
+
+		// I believe that right here is where we need to check if we need to use
+		// air gapped. I think it will be something like this:
+
+		// for example, assume that the dhcp lease discovered rxg.com as the cloud server
+		// from dns option 224.
+
+		// here we would do a txt dns lookup on est.rxg.com, and if we get a response from that,
+		// eg rxg.com, then we know that we need to set EST_SERVER=rxg.com
+		// and then we need to also set CERT_PREFIX=rxg.com.
+
+		// I think from there the est_client will do the expected things based on those env vars.
+
 		if (system('/usr/bin/est_client enroll'))
 			return;