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fence_ibmblade.py

#!/usr/bin/python

import sys, re, pexpect
sys.path.append("@FENCEAGENTSLIBDIR@")
from fencing import *
from fencing_snmp import *

#BEGIN_VERSION_GENERATION
RELEASE_VERSION="IBM Blade SNMP fence agent"
REDHAT_COPYRIGHT=""
BUILD_DATE=""
#END_VERSION_GENERATION

### CONSTANTS ###
# From fence_ibmblade.pl
STATUSES_OID=".1.3.6.1.4.1.2.3.51.2.22.1.5.1.1.4" # remoteControlBladePowerState
CONTROL_OID=".1.3.6.1.4.1.2.3.51.2.22.1.6.1.1.7" # powerOnOffBlade

# Status constants returned as value from SNMP
STATUS_DOWN=0
STATUS_UP=1

# Status constants to set as value to SNMP
STATUS_SET_OFF=0
STATUS_SET_ON=1

### FUNCTIONS ###

def get_power_status(conn,options):
      (oid,status)=conn.get("%s.%s"%(STATUSES_OID,options["-n"]))
      return (status==str(STATUS_UP) and "on" or "off")

def set_power_status(conn, options):
      conn.set("%s.%s"%(CONTROL_OID,options["-n"]),(options["-o"]=="on" and STATUS_SET_ON or STATUS_SET_OFF))

def get_outlets_status(conn, options):
      result={}

      res_blades=conn.walk(STATUSES_OID,30)

      for x in res_blades:
            port_num=x[0].split('.')[-1]

            port_alias=""
            port_status=(x[1]==str(STATUS_UP) and "on" or "off")

            result[port_num]=(port_alias,port_status)

      return result

# Define new options
def ibmblade_define_defaults():
      all_opt["snmp_version"]["default"]="1"

# Main agent method
def main():
      global port_oid

      device_opt = [ "help", "version", "agent", "quiet", "verbose", "debug",
                   "action", "ipaddr", "login", "passwd", "passwd_script",
                   "test", "port", "separator", "no_login", "no_password",
                   "snmp_version", "community", "snmp_auth_prot", "snmp_sec_level",
                   "snmp_priv_prot", "snmp_priv_passwd", "snmp_priv_passwd_script",
                   "udpport","inet4_only","inet6_only",
                   "power_timeout", "shell_timeout", "login_timeout", "power_wait" ]

      atexit.register(atexit_handler)

      snmp_define_defaults ()
      ibmblade_define_defaults()

      options=check_input(device_opt,process_input(device_opt))

      docs = { }
      docs["shortdesc"] = "Fence agent for IBM BladeCenter over SNMP"
      docs["longdesc"] = "fence_ibmblade is an I/O Fencing agent \
which can be used with IBM BladeCenter chassis. It issues SNMP Set \
request to BladeCenter chassis, rebooting, powering up or down \
the specified Blade Server."
      docs["vendorurl"] = "http://www.ibm.com"
      show_docs(options, docs)

      # Operate the fencing device
      result = fence_action(FencingSnmp(options), options, set_power_status, get_power_status, get_outlets_status)

      sys.exit(result)
if __name__ == "__main__":
      main()

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