Hello, I have mentioned this several times before: I had been asked to provide some example scripts that would "for every computer on the network... do something". It's not quite obvious how to actually find every WBEM-capable device on the network.
There are several ways how to do that and it seems like SLP is being used in combination with WBEM quite often. Maybe it is the right thing for us to use for the OpenLMI discovery as well. The Pegasus CIMOM can register itself in the local SLP server and then even advertises the registered profiles as the service attributes. Here's the sample output from my testing machine for the illustration: [tsmetana@zaphod ~]$ slptool -u f-19-local findsrvs service:wbem service:wbem:https://[fe80::5054:ff:feb6:b32]:5989,65025 service:wbem:https://192.168.122.12:5989,65025 [tsmetana@zaphod ~]$ slptool -u f-19-local findattrs service:wbem (template-url-syntax=https://192.168.122.12:5989),(service-id=PG:192-168-122-12),(service-hi-name=Pegasus),(service-hi-description=Pegasus OpenPegasus Version 2.12.1 Development),(template-type=wbem),(template-version=1.0),(template-description=This template describes the attributes used for advertising Pegasus CIM Servers.),(InteropSchemaNamespace=root/PG_InterOp),(FunctionalProfilesSupported=Basic Read,Basic Write,Schema Manipulation,Instance Manipulation,Association Traversal,Query Execution,Qualifier Declaration,Indications),(MultipleOperationsSupported=FALSE),(AuthenticationMechanismsSupported=Basic),(AuthenticationMechanismDescriptions=Basic),(CommunicationMechanism=CIM-XML),(ProtocolVersion=1.0),(Namespace=root/PG_InterOp,root/PG_Internal,root/cimv2,root),(RegisteredProfilesSupported=SNIA:Server,DMTF:Profile Registration,SNIA:Server:Indication,SNIA:Profile Registration,SNIA:Server:Software,SNIA:SMI-S) SLP would bring another dependency (the slpd daemon) but has some advantages: the discovery queries are multicasted, Pegasus already supports this out-of-the-box (we only need to start registering profiles properly) and it looks to be quite simple. While playing with the SLP tools in Fedora I have written Python bindings for OpenSLP, so we should be able to integrate SLP support in the LMI shell: https://github.com/tsmetana/pyslp (We can "openlmify" the sources and integrate in our code eventually.) Opinions? Thanks and regards, -- Tomáš Smetana Platform Engineering, Red Hat _______________________________________________ openlmi-devel mailing list [email protected] https://lists.fedorahosted.org/mailman/listinfo/openlmi-devel
