This file is indexed.

/usr/sbin/fence_virsh is in fence-agents 4.0.25-2ubuntu1.

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
#!/usr/bin/python -tt

# The Following Agent Has Been Tested On:
#
# Virsh 0.3.3 on RHEL 5.2 with xen-3.0.3-51
#

import sys, re
import time
import atexit
sys.path.append("/usr/share/fence")
from fencing import *
from fencing import fail_usage

#BEGIN_VERSION_GENERATION
RELEASE_VERSION="4.0.25"
BUILD_DATE="(built Sat, 10 Feb 2018 00:55:27 -0800)"
REDHAT_COPYRIGHT="Copyright (C) Red Hat, Inc. 2004-2010 All rights reserved."
#END_VERSION_GENERATION

def get_name_or_uuid(options):
	return options["--uuid"] if "--uuid" in options else options["--plug"]

def get_outlets_status(conn, options):
	if "--use-sudo" in options:
		prefix = options["--sudo-path"] + " "
	else:
		prefix = ""

	conn.sendline(prefix + "virsh list --all")
	conn.log_expect(options["--command-prompt"], int(options["--shell-timeout"]))

	result = {}

        #This is status of mini finite automata. 0 = we didn't found Id and Name, 1 = we did
	fa_status = 0

	for line in conn.before.splitlines():
		domain = re.search(r"^\s*(\S+)\s+(\S+)\s+(\S+).*$", line)

		if domain != None:
			if fa_status == 0 and domain.group(1).lower() == "id" and domain.group(2).lower() == "name":
				fa_status = 1
			elif fa_status == 1:
				result[domain.group(2)] = ("",
						(domain.group(3).lower() in ["running", "blocked", "idle", "no state", "paused"] and "on" or "off"))
	return result

def get_power_status(conn, options):
	prefix = options["--sudo-path"] + " " if "--use-sudo" in options else ""
	conn.sendline(prefix + "virsh domstate %s" % (get_name_or_uuid(options)))
	conn.log_expect(options["--command-prompt"], int(options["--shell-timeout"]))

	for line in conn.before.splitlines():
		if line.strip() in ["running", "blocked", "idle", "no state", "paused"]:
			return "on"
		if "error: failed to get domain" in line.strip() and "--missing-as-off" in options:
			return "off"
		if "error:" in line.strip():
			fail_usage("Failed: You have to enter existing name/UUID of virtual machine!")

	return "off"

def set_power_status(conn, options):
	prefix = options["--sudo-path"] + " " if "--use-sudo" in options else ""
	conn.sendline(prefix + "virsh %s " %
			(options["--action"] == "on" and "start" or "destroy") + get_name_or_uuid(options))

	conn.log_expect(options["--command-prompt"], int(options["--power-timeout"]))
	time.sleep(int(options["--power-wait"]))

def main():
	device_opt = ["ipaddr", "login", "passwd", "cmd_prompt", "secure", "port", "sudo", "missing_as_off"]

	atexit.register(atexit_handler)

	all_opt["secure"]["default"] = "1"
	all_opt["cmd_prompt"]["default"] = [r"\[EXPECT\]#\ "]
	all_opt["ssh_options"]["default"] = "-t '/bin/bash -c \"" + r"PS1=\\[EXPECT\\]#\  " + "/bin/bash --noprofile --norc\"'"

	options = check_input(device_opt, process_input(device_opt))

	docs = {}
	docs["shortdesc"] = "Fence agent for virsh"
	docs["longdesc"] = "fence_virsh is an I/O Fencing agent \
which can be used with the virtual machines managed by libvirt. \
It logs via ssh to a dom0 and there run virsh command, which does \
all work. \
\n.P\n\
By default, virsh needs root account to do properly work. So you \
must allow ssh login in your sshd_config."
	docs["vendorurl"] = "http://libvirt.org"
	show_docs(options, docs)

	## Operate the fencing device
	conn = fence_login(options)
	result = fence_action(conn, options, set_power_status, get_power_status, get_outlets_status)
	fence_logout(conn, "quit")
	sys.exit(result)

if __name__ == "__main__":
	main()