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LDAP For Alarms and Authorization

LDAP For Alarms and Authorization. Matthias Clausen (DESY). Overview. Please find LDAP Schema File and LDIF Files on the CSS Web Site: http://css.desy.de/content/e428/e262/e260/index_eng.html LDAP Screen Dumps were created using Apache Directory Studio and JXplorer. LDAP Tree.

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LDAP For Alarms and Authorization

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  1. LDAPFor Alarms and Authorization Matthias Clausen (DESY)

  2. Overview • Please find LDAP Schema File and LDIF Files on the CSS Web Site:http://css.desy.de/content/e428/e262/e260/index_eng.html • LDAP Screen Dumps were created usingApache Directory Studio andJXplorer

  3. LDAP Tree Currently the LDAP Tree consists of FOUR main Branches: • EpicsControls • Structured List of ALL IOCs with ALL records. • Reference for Namespace Browser • Location to persist Alarm States • EpicsAlarmcfg • Alh-Like Alarm Tree (support for interactive configuration in CSS) • EpicsAuthorize • Applying (access)rolls to Users • EpicsAuthorizeID • Applying Authorize-IDs to Access-Rolls

  4. EpicsControls Tree is filled by: • Based on the dbl -> iocName.db files • Initially a set of scripts created LDAP entries • No a Java program is running periodically checking for new/changed *.db files and updates the LDAP tree IOC-Name / IP-address is set by: • Script/ Program Record Entries (Alarm-States) are written by: • InterConnection-Server (Alarm-States read from IOC)Set to invalid if IOC is disconnected from IC-Server. • CSS Alarm-Table and CSS Alarm-Tree on Alarm Acknowledge. Record Entries (Alarm-States) are read by: • CSS Alarm-Tree to display current alarm states Note: Each record MUST be defined in EpicsControls and MAY be defined multiple times in EpicsAlarmcfg!!

  5. EpicsControls Tree Structure: • Ou=EpicsControls • efan=TTF(facilityName) • ecom=EPICS-IOC(componente) • econ=ttfKryo(controller) • eren=recordName(recordName)

  6. EpicsControlsSubcomponents • epicsController • epicsIPAddressImportant to find (logical) IOC name for an established IP-Connection. E.g. by interconnectionServer. • ecomImportant to find the IOC name for a given record name • Save changes in iocName.ca • Use caPut to write iocName.ca back to IOC at the end of an IOC reboot. Note @DESY: IOCs always keep their logical name! IOC hardware (e.g. VME boards) always keeps the IP address of the HARDWARE. Thus IP addresses of (logical) IOCs may change!

  7. EpicsControlsSubcomponents • epicsRecordName (eren) • epicsAlarmAcknTimeStamp • epicsAlarmHighUnAcknHighest unackn. alarm • epicsAlarmSeverity • epicsAlarmStatus • epicsAlarmTimeStamp

  8. EpicsAlarmcfg Tree is filled by: • Manual Entries using the CSS Alarm-Tree interactively (next slide) • Automated Entries retrieved from the alh config files Record Entries (Alarm-States) are written by: • InterConnection-Server (Alarm-States read from IOC)Set to invalid if IOC is disconnected from IC-Server. • CSS Alarm-Table and CSS Alarm-Tree on Alarm Acknowledge. Record Entries (Alarm-States) are read by: • CSS Alarm-Tree to display current alarm states Alarms can only be written to those records in the EpicsAlarmcfg which have been defined here! Note: Each record MUST be defined in EpicsControls and MAY be defined multiple times in EpicsAlarmcfg!!

  9. Configuring the Alarm-Tree(EpicsAlarmcfg) • Adding Components (root-nodes) and records (leaves) to the Alarm-Tree interactively • Changes are stored in the current LDAP server • Configuring Root Nodes (logical structure) and Leaves (records) using the default Eclipse property view • Root Nodes and Leaves share the same Properties Properties: • Alarm Display (Css Display) • Display (Css Display) • Help Guidance (text) • Help Page (http address) • Strip Chart (dataBrowser config file)

  10. EpicsAlarmcfgSubcomponents • epicsRecordName (eren) • epicsAlarmAcknTimeStamp • epicsAlarmHighUnAcknHighest unackn. alarm • epicsAlarmSeverity • epicsAlarmStatus • epicsAlarmTimeStamp • epicsCssAlarmDisplay • epicsCssDisplay • epicsCssStripChart • epicsHelpGuidance • epicsHelpPage

  11. EpicsAlarmcfgSub Functionalities Alarm Acknowledge • From Alarm-Tree • From Alarm-Table LDAP CSS • Acknowledge is DIRECTLY written to LDAPpersistence • Acknowledge-JMS Message is created to send ackn. to ALL CSS instances to set ackn.-flag(even in the CSS instance which generated the JMS message!)correctly: CSS instances register for the ACK Topic CSS Ackn. CSS CSS JMS

  12. EpicsAuthorize Tree is filled by: • Automated Entries created by the DESY registry • Computer Accounts and access grants are defined here centrally • No Manual Entries allowed Entries are read by: • CSS Security plugin

  13. EpicsAuthorize Tree Structure: • Ou=EpicsAuthorize • ou=Css(organizational unit) • ou=Css(CSS group authorization(group)) • eagn=Admin(Admins of Css group(roll)) • eaun=clausepicsAccesUserName(DESY: DESY account)

  14. EpicsAuthorizeID(not yet functional) Tree is filled by: • For now: only manual entries • CSS-Plugin is planned to ease entering new IDs Entries are read by: • CSS Security plugin

  15. EpicsAuthorizeID Tree Structure: • Ou=EpicsAuthorizeID • ou=SDS(organizational unit) • eain=remoteManagement(ID Name) • eair=admin(roll) • eaig=css(group)

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