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fence_ipdu.py
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#!/usr/bin/python
# The Following agent has been tested on:
# IBM iPDU model 46M4002
# Firmware release OPDP_sIBM_v01.2_1
#
import sys
sys.path.append("/usr/share/fence")
from fencing import *
from fencing_snmp import *
#BEGIN_VERSION_GENERATION
RELEASE_VERSION="IBM iPDU SNMP fence agent"
REDHAT_COPYRIGHT=""
BUILD_DATE=""
#END_VERSION_GENERATION
### CONSTANTS ###
# oid defining fence device
OID_SYS_OBJECT_ID = '.1.3.6.1.2.1.1.2.0'
### GLOBAL VARIABLES ###
# Device - see IBM iPDU
device = None
# Port ID
port_id = None
# Switch ID
switch_id = None
# Classes describing Device params
class IBMiPDU:
# iPDU
status_oid = '.1.3.6.1.4.1.2.6.223.8.2.2.1.11.%d'
control_oid = '.1.3.6.1.4.1.2.6.223.8.2.2.1.11.%d'
outlet_table_oid = '.1.3.6.1.4.1.2.6.223.8.2.2.1.2'
ident_str = "IBM iPDU"
state_on = 1
state_off = 0
turn_on = 1
turn_off = 0
has_switches = False
### FUNCTIONS ###
def ipdu_set_device(conn, options):
global device
agents_dir = {'.1.3.6.1.4.1.2.6.223':IBMiPDU,
None:IBMiPDU}
# First resolve type of PDU device
pdu_type = conn.walk(OID_SYS_OBJECT_ID)
if (not ((len(pdu_type)==1) and (agents_dir.has_key(pdu_type[0][1])))):
pdu_type = [[None, None]]
device = agents_dir[pdu_type[0][1]]
conn.log_command("Trying %s"%(device.ident_str))
def ipdu_resolv_port_id(conn, options):
global port_id, switch_id
if (device==None):
ipdu_set_device(conn, options)
# Now we resolv port_id/switch_id
if ((options["--plug"].isdigit()) and ((not device.has_switches) or (options["--switch"].isdigit()))):
port_id = int(options["--plug"])
if (device.has_switches):
switch_id = int(options["--switch"])
else:
table = conn.walk(device.outlet_table_oid, 30)
for x in table:
if (x[1].strip('"')==options["--plug"]):
t = x[0].split('.')
if (device.has_switches):
port_id = int(t[len(t)-1])
switch_id = int(t[len(t)-3])
else:
port_id = int(t[len(t)-1])
if (port_id==None):
fail_usage("Can't find port with name %s!"%(options["--plug"]))
def get_power_status(conn, options):
if (port_id==None):
ipdu_resolv_port_id(conn, options)
oid = ((device.has_switches) and device.status_oid%(switch_id, port_id) or device.status_oid%(port_id))
(oid, status) = conn.get(oid)
return (status==str(device.state_on) and "on" or "off")
def set_power_status(conn, options):
if (port_id==None):
ipdu_resolv_port_id(conn, options)
oid = ((device.has_switches) and device.control_oid%(switch_id, port_id) or device.control_oid%(port_id))
conn.set(oid,(options["--action"]=="on" and device.turn_on or device.turn_off))
def get_outlets_status(conn, options):
result = {}
if (device == None):
ipdu_set_device(conn, options)
res_ports = conn.walk(device.outlet_table_oid, 30)
for x in res_ports:
t = x[0].split('.')
port_num = ((device.has_switches) and "%s:%s"%(t[len(t)-3], t[len(t)-1]) or "%s"%(t[len(t)-1]))
port_name = x[1].strip('"')
port_status = ""
result[port_num] = (port_name, port_status)
return result
# Main agent method
def main():
device_opt = [ "ipaddr", "udpport", "login", "passwd", "no_login", "no_password", \
"test", "port", "snmp_version", "community" ]
atexit.register(atexit_handler)
snmp_define_defaults ()
all_opt["snmp_version"]["default"] = "3"
all_opt["community"]["default"] = "private"
all_opt["switch"]["default"] = "1"
device = IBMiPDU
options = check_input(device_opt, process_input(device_opt))
docs = { }
docs["shortdesc"] = "Fence agent for iPDU over SNMP"
docs["longdesc"] = "fence_ipdu is an I/O Fencing agent \
which can be used with the IBM iPDU network power switch. It logs \
into a device via SNMP and reboots a specified outlet. It supports \
SNMP v3 with all combinations of authenticity/privacy settings."
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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