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# Validates a system is configured for network booting
#
# Michael DeHaan <mdehaan@redhat.com>
# FUTURE: Apache checking
# FUTURE: Check to see what's running
import os
import sys
import re
from msg import *
class BootCheck:
def __init__(self, api):
self.api = api
self.config = self.api.config
"""
Returns None if there are no errors, otherwise returns a list
of things to correct prior to running bootconf 'for real'.
FIXME: this needs to be more tolerant of non-default paths
"""
def run(self):
status = []
self.check_dhcpd_bin(status)
self.check_pxelinux_bin(status)
self.check_tftpd_bin(status)
self.check_tftpd_dir(status)
self.check_tftpd_conf(status)
self.check_dhcpd_conf(status)
return status
"""
Check if dhcpd is installed
"""
def check_dhcpd_bin(self,status):
if not os.path.exists(self.config.dhcpd_bin):
status.append(m("no_dhcpd"))
"""
Check if pxelinux (part of syslinux) is installed
"""
def check_pxelinux_bin(self,status):
if not os.path.exists(self.config.pxelinux):
status.append(m("no_pxelinux"))
"""
Check if tftpd is installed
"""
def check_tftpd_bin(self,status):
if not os.path.exists(self.config.tftpd_bin):
status.append(m("no_tftpd"))
"""
Check if bootconf.conf's tftpboot directory exists
"""
def check_tftpd_dir(self,status):
if not os.path.exists(self.config.tftpboot):
status.append(m("no_dir") % self.config.tftpboot)
"""
Check that bootconf tftpd boot directory matches with tftpd directory
Check that tftpd is enabled to autostart
"""
def check_tftpd_conf(self,status):
if os.path.exists(self.config.tftpd_conf):
f = open(self.config.tftpd_conf)
re_1 = re.compile(r'default:.*off')
re_2 = re.compile(r'disable.*=.*yes')
found_bootdir = False
for line in f.readlines():
if re_1.search(line):
status.append(m("chg_attrib") % ('default','on',self.config.tftpd_conf))
if re_2.search(line):
status.append(m("chg_attrib") % ('disable','no',self.config.tftpd_conf))
if line.find("-s %s" % self.config.tftpboot) != -1:
found_bootdir = True
if not found_bootdir:
status.append(m("chg_attrib") % ('server_args',"-s %s" % self.config.tftpboot, self.config.tftpd_conf))
else:
status.append(m("no_exist") % self.tftpd_conf)
"""
Check that dhcpd *appears* to be configured for pxe booting.
We can't assure file correctness
"""
def check_dhcpd_conf(self,status):
if os.path.exists(self.config.dhcpd_conf):
match_next = False
match_file = False
f = open(self.config.dhcpd_conf)
for line in f.readlines():
if line.find("next-server") != -1:
match_next = True
if line.find("filename") != -1:
match_file = True
if not match_next:
status.append(m("no_line") % (self.config.dhcpd_conf, 'next-server ip-address'))
if not match_file:
status.append(m("no_line") % (self.config.dhcpd_conf, 'filename "%s/pxelinux.0";' % self.config.tftpboot))
else:
status.append(m("no_exist") % self.config.dhcpd_conf)
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