107 lines
2.8 KiB
Python
Executable File
107 lines
2.8 KiB
Python
Executable File
#!/usr/bin/env python
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# coding: utf-8
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import datetime, os, commands, sys, shutil
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from django.core.management import setup_environ
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import settings
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setup_environ(settings)
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from mdb.models import *
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to_be_updated = []
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dhcp_filename = "dhcpd.conf"
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dhcp_file_temp_dir = "dhcp"
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#dhcp_file_dir = "/etc/dhcp"
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dhcp_file_dir = "dhcp2"
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dhcp_orig_file = "%s/%s" % (dhcp_file_dir, dhcp_filename)
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dhcp_temp_file = "%s/%s" % (dhcp_file_temp_dir, dhcp_filename)
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dhcp_orig_serial = 0
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if not os.path.isdir(dhcp_file_temp_dir):
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os.mkdir(dhcp_file_temp_dir)
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if not os.path.isdir(dhcp_file_dir):
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os.mkdir(dhcp_file_dir)
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# read the current dhcp configs first line to get the serial
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if os.path.exists(dhcp_orig_file):
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dhcp_orig_fd = open(dhcp_orig_file, "r")
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dhcp_orig_serial = int(dhcp_orig_fd.readline().split(":")[1])
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dhcp_orig_fd.close()
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# fetch configuration option #1
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# we don't support more then one at this time.
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config = DhcpConfig.objects.all()[0]
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if config.serial <= dhcp_orig_serial:
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print "no update nesecarry"
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# sys.exit(0)
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# open a temporary file to build the new configuration
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dhcp_temp_fd = open(dhcp_temp_file, "w")
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# write the new serial to the file
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dhcp_temp_fd.write("; serial:%s\n" % config.serial)
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# write if the dhcp server is authoritative
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if config.authoritative:
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dhcp_temp_fd.write("authoritative;\n")
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# write default lease time
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dhcp_temp_fd.write("default-lease-time %d;\n" % config.default_lease_time)
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# write max lease time
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dhcp_temp_fd.write("max-lease-time %d;\n" % config.max_lease_time)
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# write log facility
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dhcp_temp_fd.write("log-facility %s;\n" % config.log_facility)
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# write update style
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dhcp_temp_fd.write("ddns-update-style %s;\n" % config.ddns_update_style)
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for subnet in config.ip4subnet_set.all():
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dhcp_temp_fd.write("\n# %s\n" % subnet.name)
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dhcp_temp_fd.write("subnet %s netmask %s {\n" % (subnet.network, subnet.netmask))
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for option in subnet.dhcpoption_set.all():
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dhcp_temp_fd.write("\toption %s %s;\n" % (option.key, option.value))
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for option in subnet.dhcpcustomfield_set.all():
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dhcp_temp_fd.write("\t%s;\n" % option.value)
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if subnet.dhcp_dynamic:
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dhcp_temp_fd.write("\trange %s %s;\n"
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% (subnet.dhcp_dynamic_start, subnet.dhcp_dynamic_end))
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dhcp_temp_fd.write("}\n")
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for subnet in config.ip4subnet_set.all():
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if not subnet.dhcp_dynamic: continue
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for ip4address in subnet.ip4address_set.all():
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if ip4address.interface_set.count() == 0: continue
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interface = ip4address.interface_set.get()
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if not interface.dhcp_client: continue
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dhcp_temp_fd.write("\nhost %s {\n" % interface.host.hostname)
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dhcp_temp_fd.write("\thardware ethernet %s;\n" % interface.macaddr)
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dhcp_temp_fd.write("\tfixed-address %s.%s;\n"
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% (interface.host.hostname, interface.domain.domain_name))
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dhcp_temp_fd.write("}\n")
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# print "found interface %s\n" % interface
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dhcp_temp_fd.close()
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shutil.copy(dhcp_temp_file, dhcp_orig_file)
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sys.exit(0)
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