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import os
import ipaddress
import math
def base(subnet4):
return {
"hooks-libraries": [
{
"library": "/usr/lib/x86_64-linux-gnu/kea/hooks/libdhcp_flex_option.so",
"parameters": {
"options": [
{
"name": "vendor-encapsulated-options",
"client-class": "fap-class",
"sub-options": [
{
"name": "config-file-name",
"space": "vendor-encapsulated-options-space",
"supersede": "ifelse(option[82].option[1].exists,concat('api/templates/magic.conf/a=', option[82].option[1].hex),'')"
}
]
},
{
"name": "host-name",
"client-class": "fap-class",
"remove": "option[12].exists"
}
]
}
},
{
"library": "/usr/lib/x86_64-linux-gnu/kea/hooks/libdhcp_run_script.so",
"parameters": {
"name": "/etc/kea/gondul.sh",
"sync": False
}
}
],
"dhcp-ddns": {
"enable-updates": True,
"server-ip": "::1",
},
"ddns-send-updates": True,
"ddns-override-no-update": False,
"ddns-override-client-update": False,
"ddns-replace-client-name": "always",
"ddns-generated-prefix": "dyn",
"ddns-update-on-renew": False,
"ddns-use-conflict-resolution": True,
"interfaces-config": {
"interfaces": [
os.environ.get('DHCP_INTERFACE', 'eth0')
],
"dhcp-socket-type": "udp"
},
"control-socket": {
"socket-type": "unix",
"socket-name": "/tmp/kea4-ctrl-socket"
},
"lease-database": {
"type": "postgresql",
"name": "kea",
"user": "kea",
"password": os.environ['DHCP_LEASE_DB_PASSWORD']
},
"expired-leases-processing": {
"reclaim-timer-wait-time": 10,
"flush-reclaimed-timer-wait-time": 25,
"hold-reclaimed-time": 3600,
"max-reclaim-leases": 100,
"max-reclaim-time": 250,
"unwarned-reclaim-cycles": 5
},
"authoritative": True,
"renew-timer": 900,
"rebind-timer": 1800,
"valid-lifetime": 3600,
"option-def": [
{
"name": "image-file-name",
"code": 0,
"space": "vendor-encapsulated-options-space",
"type": "string",
"array": False
},
{
"name": "config-file-name",
"code": 1,
"space": "vendor-encapsulated-options-space",
"type": "string",
"array": False
},
{
"name": "image-file-type",
"code": 2,
"space": "vendor-encapsulated-options-space",
"type": "string",
"array": False
},
{
"name": "transfer-mode",
"code": 3,
"space": "vendor-encapsulated-options-space",
"type": "string",
"array": False
},
{
"code": 150,
"name": "tftp-server-address",
"space": "dhcp4",
"type": "ipv4-address",
"array": True
}
],
"option-data": [
{
"name": "domain-name-servers",
"data": os.environ['DOMAIN_NAME_SERVERS_V4']
},
{
"name": "domain-name",
"data": os.environ['DOMAIN_NAME']
},
{
"name": "domain-search",
"data": os.environ['DOMAIN_SEARCH']
}
],
"client-classes": [
{
"name": "client-juniper-vendor",
"test": "substring(option[vendor-class-identifier].hex,0,7) == 'Juniper'"
},
{
"name": "client-juniper-mac",
"test": "substring(pkt4.mac, 0, 2) == '0x44f477' or substring(pkt4.mac, 0, 2) == '0xf01c2d'"
},
{
"name": "fap-class",
"test": "member('client-juniper-vendor') or member('client-juniper-mac')",
"option-data": [
{
"name": "vendor-encapsulated-options",
"always-send": True
},
{
"name": "transfer-mode",
"space": "vendor-encapsulated-options-space",
"data": "http",
"always-send": True
},
{
"name": "tftp-server-address",
"data": os.environ['FAP_V4'],
"always-send": True
}
]
},
{
"name": "Cisco-Phone",
"test": "substring(option[60].hex,0,28) == 'Cisco Systems, Inc. IP Phone'",
"option-data": [
{
"name": "tftp-server-address",
"data": os.environ['VOIP_V4'],
"always-send": True
},
],
},
{
"name": "PXE-XClient_iPXE",
"test": "substring(option[77].hex,0,4) == 'iPXE'",
"boot-file-name": "https://{}/menu.ipxe".format(os.environ['NETBOOT_V4'])
},
{
"name": "PXE-UEFI-32-1",
"test": "substring(option[60].hex,0,20) == 'PXEClient:Arch:00006'",
"next-server": os.environ['NETBOOT_V4'],
"boot-file-name": "netboot.xyz.efi"
},
{
"name": "PXE-UEFI-32-2",
"test": "substring(option[60].hex,0,20) == 'PXEClient:Arch:00002'",
"next-server": os.environ['NETBOOT_V4'],
"boot-file-name": "netboot.xyz.efi"
},
{
"name": "PXE-UEFI-64-1",
"test": "substring(option[60].hex,0,20) == 'PXEClient:Arch:00007'",
"next-server": os.environ['NETBOOT_V4'],
"boot-file-name": "netboot.xyz.efi"
},
{
"name": "PXE-UEFI-64-2",
"test": "substring(option[60].hex,0,20) == 'PXEClient:Arch:00008'",
"next-server": os.environ['NETBOOT_V4'],
"boot-file-name": "netboot.xyz.efi"
},
{
"name": "PXE-UEFI-64-3",
"test": "substring(option[60].hex,0,20) == 'PXEClient:Arch:00009'",
"next-server": os.environ['NETBOOT_V4'],
"boot-file-name": "netboot.xyz.efi"
},
{
"name": "PXE-Legacy",
"test": "substring(option[60].hex,0,20) == 'PXEClient:Arch:00000'",
"next-server": os.environ['NETBOOT_V4'],
"boot-file-name": "netboot.xyz-undionly.kpxe"
}
],
"subnet4": subnet4,
"loggers": [
{
"name": "kea-dhcp4",
"output_options": [
{
"output": "/var/log/kea/dhcp4-debug.log",
"maxver": 8,
"maxsize": 204800,
"flush": True,
"pattern": "%d{%j %H:%M:%S.%q} %c %m\n"
}
],
"severity": "DEBUG",
"debuglevel": 40
}
]
}
def subnet(vlan, prefix, domain_name, vlan_domain_name):
network = ipaddress.ip_network(prefix.prefix)
gw, start_ip, end_ip = network[1], network[2], network[-2]
return {
"id": prefix.id,
"subnet": prefix.prefix,
"ddns-qualifying-suffix": vlan_domain_name,
# Check if the VLAN in netbox has dhcp-ddns. This will enable full ddns using client hostnames.
# Generate automatically using IP if not.
"ddns-replace-client-name": "always" if not any(t['slug'] == 'dhcp-ddns' for t in vlan.tags) else "when-not-present",
"pools": [
{
"pool": f"{start_ip} - {end_ip}"
}
],
"option-data": [
{
"name": "routers",
"data": f"{gw}"
},
{
"name": "domain-name",
"data": f"{vlan_domain_name}, {domain_name}"
},
{
"name": "domain-search",
"data": f"{vlan_domain_name}, {domain_name}"
}
],
"user-context": {
"name": vlan.name,
"type": "clients"
}
}
def fap(vlan, prefix):
network = ipaddress.ip_network(prefix.prefix)
gw, start_ip, end_ip = network[1], network[(
math.ceil(network.num_addresses - 50))], network[-2]
return {
"id": prefix.id,
"client-class": "fap-class",
"subnet": prefix.prefix,
"pools": [
{
"pool": f"{start_ip} - {end_ip}"
}
],
"option-data": [
{
"name": "routers",
"data": f"{gw}"
}
],
"user-context": {
"name": vlan.name,
"type": "fap"
}
}
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