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fence_apc.py
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fence_apc.py
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#!@PYTHON@ -tt
#####
##
## The Following Agent Has Been Tested On:
##
## Model Firmware
## +---------------------------------------------+
## AP7951 AOS v2.7.0, PDU APP v2.7.3
## AP7941 AOS v3.5.7, PDU APP v3.5.6
## AP9606 AOS v2.5.4, PDU APP v2.7.3
##
## @note: ssh is very slow on AP79XX devices protocol (1) and
## cipher (des/blowfish) have to be defined
#####
import sys, re, time
import atexit
sys.path.append("@FENCEAGENTSLIBDIR@")
from fencing import *
from fencing import fail, fail_usage, EC_STATUS
# Fix for connection timed out issue in:
# https://bugzilla.redhat.com/show_bug.cgi?id=1342584
TIMEDOUT_DELAY = 0.5
def get_power_status(conn, options):
exp_result = 0
outlets = {}
conn.send_eol("1")
conn.log_expect(options["--command-prompt"], int(options["--shell-timeout"]))
version = 0
admin = 0
switch = 0
if None != re.compile('.* MasterSwitch plus.*', re.IGNORECASE | re.S).match(conn.before):
switch = 1
if None != re.compile('.* MasterSwitch plus 2', re.IGNORECASE | re.S).match(conn.before):
if "--switch" not in options:
fail_usage("Failed: You have to enter physical switch number")
else:
if "--switch" not in options:
options["--switch"] = "1"
if None == re.compile('.*Outlet Management.*', re.IGNORECASE | re.S).match(conn.before):
version = 2
else:
version = 3
if None == re.compile('.*Outlet Control/Configuration.*', re.IGNORECASE | re.S).match(conn.before):
admin = 0
else:
admin = 1
if switch == 0:
if version == 2:
if admin == 0:
conn.send_eol("2")
else:
conn.send_eol("3")
else:
conn.send_eol("2")
conn.log_expect(options["--command-prompt"], int(options["--shell-timeout"]))
conn.send_eol("1")
else:
conn.send_eol(options["--switch"])
while True:
exp_result = conn.log_expect(
["Press <ENTER>"] + options["--command-prompt"], int(options["--shell-timeout"]))
lines = conn.before.split("\n")
show_re = re.compile(r'(^|\x0D)\s*(\d+)- (.*?)\s+(ON|OFF)\s*')
for line in lines:
res = show_re.search(line)
if res != None:
outlets[res.group(2)] = (res.group(3), res.group(4))
time.sleep(TIMEDOUT_DELAY)
conn.send_eol("")
if exp_result != 0:
break
conn.send(chr(0o3))
conn.log_expect("- Logout", int(options["--shell-timeout"]))
conn.log_expect(options["--command-prompt"], int(options["--shell-timeout"]))
if ["list", "monitor"].count(options["--action"]) == 1:
return outlets
else:
try:
(_, status) = outlets[options["--plug"]]
return status.lower().strip()
except KeyError:
fail(EC_STATUS)
def set_power_status(conn, options):
action = {
'on' : "1",
'off': "2"
}[options["--action"]]
conn.send_eol("1")
conn.log_expect(options["--command-prompt"], int(options["--shell-timeout"]))
version = 0
admin2 = 0
admin3 = 0
switch = 0
if None != re.compile('.* MasterSwitch plus.*', re.IGNORECASE | re.S).match(conn.before):
switch = 1
## MasterSwitch has different schema for on/off actions
action = {
'on' : "1",
'off': "3"
}[options["--action"]]
if None != re.compile('.* MasterSwitch plus 2', re.IGNORECASE | re.S).match(conn.before):
if "--switch" not in options:
fail_usage("Failed: You have to enter physical switch number")
else:
if "--switch" not in options:
options["--switch"] = 1
if None == re.compile('.*Outlet Management.*', re.IGNORECASE | re.S).match(conn.before):
version = 2
else:
version = 3
if None == re.compile('.*Outlet Control/Configuration.*', re.IGNORECASE | re.S).match(conn.before):
admin2 = 0
else:
admin2 = 1
if switch == 0:
if version == 2:
if admin2 == 0:
conn.send_eol("2")
else:
conn.send_eol("3")
else:
conn.send_eol("2")
conn.log_expect(options["--command-prompt"], int(options["--shell-timeout"]))
if None == re.compile('.*2- Outlet Restriction.*', re.IGNORECASE | re.S).match(conn.before):
admin3 = 0
else:
admin3 = 1
conn.send_eol("1")
else:
conn.send_eol(options["--switch"])
while 0 == conn.log_expect(
["Press <ENTER>"] + options["--command-prompt"], int(options["--shell-timeout"])):
time.sleep(TIMEDOUT_DELAY)
conn.send_eol("")
conn.send_eol(options["--plug"]+"")
conn.log_expect(options["--command-prompt"], int(options["--shell-timeout"]))
if switch == 0:
if admin2 == 1:
conn.send_eol("1")
conn.log_expect(options["--command-prompt"], int(options["--shell-timeout"]))
if admin3 == 1:
conn.send_eol("1")
conn.log_expect(options["--command-prompt"], int(options["--shell-timeout"]))
else:
conn.send_eol("1")
conn.log_expect(options["--command-prompt"], int(options["--shell-timeout"]))
conn.send_eol(action)
conn.log_expect("Enter 'YES' to continue or <ENTER> to cancel :", int(options["--shell-timeout"]))
conn.send_eol("YES")
conn.log_expect("Press <ENTER> to continue...", int(options["--power-timeout"]))
time.sleep(TIMEDOUT_DELAY)
conn.send_eol("")
conn.log_expect(options["--command-prompt"], int(options["--power-timeout"]))
conn.send(chr(0o3))
conn.log_expect("- Logout", int(options["--shell-timeout"]))
conn.log_expect(options["--command-prompt"], int(options["--shell-timeout"]))
def get_power_status5(conn, options):
outlets = {}
conn.send_eol("olStatus all")
conn.log_expect(options["--command-prompt"], int(options["--shell-timeout"]))
lines = conn.before.split("\n")
show_re = re.compile(r'^\s*(\d+): (.*): (On|Off)\s*$', re.IGNORECASE)
for line in lines:
res = show_re.search(line)
if res != None:
outlets[res.group(1)] = (res.group(2), res.group(3))
if ["list", "monitor"].count(options["--action"]) == 1:
return outlets
else:
try:
(_, status) = outlets[options["--plug"]]
return status.lower().strip()
except KeyError:
fail(EC_STATUS)
def set_power_status5(conn, options):
action = {
'on' : "olOn",
'off': "olOff"
}[options["--action"]]
conn.send_eol(action + " " + options["--plug"])
conn.log_expect(options["--command-prompt"], int(options["--power-timeout"]))
def main():
device_opt = ["ipaddr", "login", "passwd", "cmd_prompt", "secure", \
"port", "switch", "telnet"]
atexit.register(atexit_handler)
all_opt["cmd_prompt"]["default"] = ["\n>", "\napc>"]
all_opt["ssh_options"]["default"] = "-1 -c blowfish"
options = check_input(device_opt, process_input(device_opt))
docs = {}
docs["shortdesc"] = "Fence agent for APC over telnet/ssh"
docs["longdesc"] = "fence_apc is an I/O Fencing agent \
which can be used with the APC network power switch. It logs into device \
via telnet/ssh and reboots a specified outlet. Lengthy telnet/ssh connections \
should be avoided while a GFS cluster is running because the connection \
will block any necessary fencing actions."
docs["vendorurl"] = "http://www.apc.com"
show_docs(options, docs)
## Support for --plug [switch]:[plug] notation that was used before
if (("--plug" in options) == 1) and (-1 != options["--plug"].find(":")):
(switch, plug) = options["--plug"].split(":", 1)
options["--switch"] = switch
options["--plug"] = plug
##
## Operate the fencing device
####
conn = fence_login(options)
## Detect firmware version (ASCII menu vs command-line interface)
## and continue with proper action
####
result = -1
firmware_version = re.compile(r'\s*v(\d)*\.').search(conn.before)
if (firmware_version != None) and (firmware_version.group(1) in [ "5", "6" ]):
result = fence_action(conn, options, set_power_status5, get_power_status5, get_power_status5)
else:
result = fence_action(conn, options, set_power_status, get_power_status, get_power_status)
fence_logout(conn, "4")
sys.exit(result)
if __name__ == "__main__":
main()

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