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fence_wti.py
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fence_wti.py
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#!/usr/bin/python
#####
##
## The Following Agent Has Been Tested On:
##
## Version Firmware
## +-----------------+---------------------------+
## WTI RSM-8R4 ?? unable to find out ??
## WTI MPC-??? ?? unable to find out ??
## WTI IPS-800-CE v1.40h (no username) ('list' tested)
#####
import sys, re, pexpect, exceptions
sys.path.append("@FENCEAGENTSLIBDIR@")
from fencing import *
#BEGIN_VERSION_GENERATION
RELEASE_VERSION="New WTI Agent - test release on steroids"
REDHAT_COPYRIGHT=""
BUILD_DATE="March, 2008"
#END_VERSION_GENERATION
def get_listing(conn, options, listing_command):
listing = ""
conn.send(listing_command + "\r\n")
if isinstance(options["--command-prompt"], list):
re_all = list(options["--command-prompt"])
else:
re_all = [options["--command-prompt"]]
re_next = re.compile("Enter: ", re.IGNORECASE)
re_all.append(re_next)
result = conn.log_expect(options, re_all, int(options["--shell-timeout"]))
listing = conn.before
if result == (len(re_all) - 1):
conn.send("\r\n")
conn.log_expect(options, options["--command-prompt"], int(options["--shell-timeout"]))
listing += conn.before
return listing
def get_plug_status(conn, options):
listing = get_listing(conn, options, "/S")
plug_section = 0
plug_index = -1
name_index = -1
status_index = -1
plug_header = list()
outlets = {}
for line in listing.splitlines():
if (plug_section == 2) and line.find("|") >= 0 and line.startswith("PLUG") == False:
plug_line = [x.strip().lower() for x in line.split("|")]
if len(plug_line) < len(plug_header):
plug_section = -1
if ["list", "monitor"].count(options["--action"]) == 0 and options["--plug"].lower() == plug_line[plug_index]:
return plug_line[status_index]
else:
## We already believe that first column contains plug number
if len(plug_line[0]) != 0:
outlets[plug_line[0]] = (plug_line[name_index], plug_line[status_index])
elif (plug_section == 1):
plug_section = 2
elif (line.upper().startswith("PLUG")):
plug_section = 1
plug_header = [x.strip().lower() for x in line.split("|")]
plug_index = plug_header.index("plug")
name_index = plug_header.index("name")
status_index = plug_header.index("status")
if ["list", "monitor"].count(options["--action"]) == 1:
return outlets
else:
return "PROBLEM"
def get_plug_group_status_from_list(status_list):
for status in status_list:
if status == "on":
return status
return "off"
def get_plug_group_status(conn, options):
listing = get_listing(conn, options, "/SG")
plug_section = 0
outlets = {}
current_outlet = ""
line_index = 0
lines = listing.splitlines()
while line_index < len(lines) and line_index >= 0:
line = lines[line_index]
if (line.find("|") >= 0 and line.lstrip().startswith("GROUP NAME") == False):
plug_line = [x.strip().lower() for x in line.split("|")]
if ["list", "monitor"].count(options["--action"]) == 0 and options["--plug"].lower() == plug_line[name_index]:
line_index += 1
plug_status = []
while line_index < len(lines) and line_index >= 0:
plug_line = [x.strip().lower() for x in lines[line_index].split("|")]
if len(plug_line[plug_index]) > 0 and len(plug_line[name_index]) == 0:
plug_status.append(plug_line[status_index])
line_index += 1
else:
line_index = -1
return get_plug_group_status_from_list(plug_status)
else:
## We already believe that first column contains plug number
if len(plug_line[0]) != 0:
group_name = plug_line[0]
plug_line_index = line_index + 1
plug_status = []
while plug_line_index < len(lines) and plug_line_index >= 0:
plug_line = [x.strip().lower() for x in lines[plug_line_index].split("|")]
if len(plug_line[name_index]) > 0:
plug_line_index = -1
break
if len(plug_line[plug_index]) > 0:
plug_status.append(plug_line[status_index])
plug_line_index += 1
else:
plug_line_index = -1
outlets[group_name] = (group_name, get_plug_group_status_from_list(plug_status))
line_index += 1
elif (line.upper().lstrip().startswith("GROUP NAME")):
plug_header = [x.strip().lower() for x in line.split("|")]
name_index = plug_header.index("group name")
plug_index = plug_header.index("plug")
status_index = plug_header.index("status")
line_index += 2
else:
line_index += 1
if ["list", "monitor"].count(options["--action"]) == 1:
for group, status in outlet_groups:
outlets[group] = (group, status[0])
return outlets
else:
return "PROBLEM"
def get_power_status(conn, options):
ret = get_plug_status(conn, options)
if ret == "PROBLEM":
ret = get_plug_group_status(conn, options)
return ret
def set_power_status(conn, options):
action = {
'on' : "/on",
'off': "/off"
}[options["--action"]]
conn.send(action + " " + options["--plug"] + ",y\r\n")
conn.log_expect(options, options["--command-prompt"], int(options["--power-timeout"]))
def main():
device_opt = [ "ipaddr", "ipport", "login", "passwd", "no_login", "no_password", \
"cmd_prompt", "secure", "port", "test" ]
atexit.register(atexit_handler)
all_opt["cmd_prompt"]["default"] = [ "RSM>", "MPC>", "IPS>", "TPS>", "NBB>", "NPS>", "VMR>" ]
options = check_input(device_opt, process_input(device_opt))
docs = { }
docs["shortdesc"] = "Fence agent for WTI"
docs["longdesc"] = "fence_wti is an I/O Fencing agent \
which can be used with the WTI Network Power Switch (NPS). It logs \
into an NPS via telnet or ssh and boots a specified plug. \
Lengthy telnet connections to the NPS should be avoided while a GFS cluster \
is running because the connection will block any necessary fencing actions."
docs["vendorurl"] = "http://www.wti.com"
show_docs(options, docs)
##
## Operate the fencing device
##
## @note: if it possible that this device does not need either login, password or both of them
#####
if 0 == options.has_key("--ssh"):
try:
try:
conn = fspawn(options, TELNET_PATH)
conn.send("set binary\n")
conn.send("open %s -%s\n"%(options["--ip"], options["--ipport"]))
except pexpect.ExceptionPexpect, ex:
sys.stderr.write(str(ex) + "\n")
sys.stderr.write("Due to limitations, binary dependencies on fence agents "
"are not in the spec file and must be installed separately." + "\n")
sys.exit(EC_GENERIC_ERROR)
re_login = re.compile("(login: )|(Login Name: )|(username: )|(User Name :)", re.IGNORECASE)
re_prompt = re.compile("|".join(map (lambda x: "(" + x + ")", options["--command-prompt"])), re.IGNORECASE)
result = conn.log_expect(options, [ re_login, "Password: ", re_prompt ], int(options["--shell-timeout"]))
if result == 0:
if options.has_key("--username"):
conn.send(options["--username"]+"\r\n")
result = conn.log_expect(options, [ re_login, "Password: ", re_prompt ], int(options["--shell-timeout"]))
else:
fail_usage("Failed: You have to set login name")
if result == 1:
if options.has_key("--password"):
conn.send(options["--password"]+"\r\n")
conn.log_expect(options, options["--command-prompt"], int(options["--shell-timeout"]))
else:
fail_usage("Failed: You have to enter password or password script")
except pexpect.EOF:
fail(EC_LOGIN_DENIED)
except pexpect.TIMEOUT:
fail(EC_LOGIN_DENIED)
else:
conn = fence_login(options)
result = fence_action(conn, options, set_power_status, get_power_status, get_power_status)
##
## Logout from system
######
try:
conn.send("/X"+"\r\n")
conn.close()
except:
pass
sys.exit(result)
if __name__ == "__main__":
main()

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