/usr/sbin/fence_ifmib is in fence-agents 3.1.5-2ubuntu2.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 | #!/usr/bin/python
# The Following agent has been tested on:
# - Cisco MDS UROS 9134 FC (1 Slot) Chassis ("1/2/4 10 Gbps FC/Supervisor-2") Motorola, e500v2
# with BIOS 1.0.16, kickstart 4.1(1c), system 4.1(1c)
# - Cisco MDS 9124 (1 Slot) Chassis ("1/2/4 Gbps FC/Supervisor-2") Motorola, e500
# with BIOS 1.0.16, kickstart 4.1(1c), system 4.1(1c)
# - Partially with APC PDU (Network Management Card AOS v2.7.0, Rack PDU APP v2.7.3)
# Only lance if is visible
import sys, re, pexpect
sys.path.append("/usr/share/fence")
from fencing import *
from fencing_snmp import *
#BEGIN_VERSION_GENERATION
RELEASE_VERSION="3.1.5"
BUILD_DATE="(built Mon Feb 6 23:36:23 UTC 2012)"
REDHAT_COPYRIGHT="Copyright (C) Red Hat, Inc. 2004-2010 All rights reserved."
#END_VERSION_GENERATION
### CONSTANTS ###
# IF-MIB trees for alias, status and port
ALIASES_OID=".1.3.6.1.2.1.31.1.1.1.18"
PORTS_OID=".1.3.6.1.2.1.2.2.1.2"
STATUSES_OID=".1.3.6.1.2.1.2.2.1.7"
# Status constants returned as value from SNMP
STATUS_UP=1
STATUS_DOWN=2
STATUS_TESTING=3
### GLOBAL VARIABLES ###
# Port number converted from port name or index
port_num=None
### FUNCTIONS ###
# Convert port index or name to port index
def port2index(conn,port):
res=None
if (port.isdigit()):
res=int(port)
else:
ports=conn.walk(PORTS_OID,30)
for x in ports:
if (x[1].strip('"')==port):
res=int(x[0].split('.')[-1])
break
if (res==None):
fail_usage("Can't find port with name %s!"%(port))
return res
def get_power_status(conn,options):
global port_num
if (port_num==None):
port_num=port2index(conn,options["-n"])
(oid,status)=conn.get("%s.%d"%(STATUSES_OID,port_num))
return (status==str(STATUS_UP) and "on" or "off")
def set_power_status(conn, options):
global port_num
if (port_num==None):
port_num=port2index(conn,options["-n"])
conn.set("%s.%d"%(STATUSES_OID,port_num),(options["-o"]=="on" and STATUS_UP or STATUS_DOWN))
# Convert array of format [[key1, value1], [key2, value2], ... [keyN, valueN]] to dict, where key is
# in format a.b.c.d...z and returned dict has key only z
def array_to_dict(ar):
return dict(map(lambda y:[y[0].split('.')[-1],y[1]],ar))
def get_outlets_status(conn, options):
result={}
res_fc=conn.walk(PORTS_OID,30)
res_aliases=array_to_dict(conn.walk(ALIASES_OID,30))
for x in res_fc:
port_num=x[0].split('.')[-1]
port_name=x[1].strip('"')
port_alias=(res_aliases.has_key(port_num) and res_aliases[port_num].strip('"') or "")
port_status=""
result[port_name]=(port_alias,port_status)
return result
# Define new options
def ifmib_define_defaults():
all_opt["snmp_version"]["default"]="2c"
# 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 ()
options=process_input(device_opt)
# Emulate enable/disable functionality
if (options.has_key("-o")):
options["-o"]=options["-o"].lower()
if (options["-o"]=="enable"):
options["-o"]="on"
if (options["-o"]=="disable"):
options["-o"]="off"
else:
options["-o"]="off"
options = check_input(device_opt, options)
docs = { }
docs["shortdesc"] = "Fence agent for IF MIB"
docs["longdesc"] = "fence_ifmib is an I/O Fencing agent \
which can be used with any SNMP IF-MIB capable device. \
\n.P\n\
It was written with managed ethernet switches in mind, in order to \
fence iSCSI SAN connections. However, there are many devices that \
support the IF-MIB interface. The agent uses IF-MIB::ifAdminStatus \
to control the state of an interface."
docs["vendorurl"] = "http://www.ietf.org/wg/concluded/ifmib.html"
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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