def data_to_dns_record(record_type, data):
if record_type == dnsp.DNS_TYPE_A:
rec = ARecord(data)
elif record_type == dnsp.DNS_TYPE_AAAA:
rec = AAAARecord(data)
elif record_type == dnsp.DNS_TYPE_PTR:
rec = PTRRecord(data)
elif record_type == dnsp.DNS_TYPE_CNAME:
rec = CNameRecord(data)
elif record_type == dnsp.DNS_TYPE_NS:
rec = NSRecord(data)
elif record_type == dnsp.DNS_TYPE_MX:
tmp = data.split(' ')
if len(tmp) != 2:
raise CommandError(
'Data requires 2 elements - mail_server, preference')
mail_server = tmp[0]
preference = int(tmp[1])
rec = MXRecord(mail_server, preference)
elif record_type == dnsp.DNS_TYPE_SRV:
tmp = data.split(' ')
if len(tmp) != 4:
raise CommandError(
'Data requires 4 elements - server, port, priority, weight')
server = tmp[0]
port = int(tmp[1])
priority = int(tmp[2])
weight = int(tmp[3])
rec = SRVRecord(server, port, priority=priority, weight=weight)
elif record_type == dnsp.DNS_TYPE_SOA:
tmp = data.split(' ')
if len(tmp) != 7:
raise CommandError(
'Data requires 7 elements - nameserver, email, serial, '
'refresh, retry, expire, minimumttl')
nameserver = tmp[0]
email = tmp[1]
serial = int(tmp[2])
refresh = int(tmp[3])
retry = int(tmp[4])
expire = int(tmp[5])
minimum = int(tmp[6])
rec = SOARecord(nameserver,
email,
serial=serial,
refresh=refresh,
retry=retry,
expire=expire,
minimum=minimum)
elif record_type == dnsp.DNS_TYPE_TXT:
slist = shlex.split(data)
rec = TXTRecord(slist)
else:
raise CommandError('Unsupported record type')
return rec
def add_dns_records(samdb, name, dns_conn, change_owner_sd, server,
ip_address_list, logger):
"""Add DNS A or AAAA records while creating computer. """
name = name.rstrip('$')
client_version = dnsserver.DNS_CLIENT_VERSION_LONGHORN
select_flags = dnsserver.DNS_RPC_VIEW_AUTHORITY_DATA | dnsserver.DNS_RPC_VIEW_NO_CHILDREN
zone = samdb.domain_dns_name()
name_found = True
sd_helper = sd_utils.SDUtils(samdb)
try:
buflen, res = dns_conn.DnssrvEnumRecords2(
client_version,
0,
server,
zone,
name,
None,
dnsp.DNS_TYPE_ALL,
select_flags,
None,
None,
)
except WERRORError as e:
if e.args[0] == werror.WERR_DNS_ERROR_NAME_DOES_NOT_EXIST:
name_found = False
pass
if name_found:
for rec in res.rec:
for record in rec.records:
if record.wType == dnsp.DNS_TYPE_A or record.wType == dnsp.DNS_TYPE_AAAA:
# delete record
del_rec_buf = dnsserver.DNS_RPC_RECORD_BUF()
del_rec_buf.rec = record
try:
dns_conn.DnssrvUpdateRecord2(
client_version,
0,
server,
zone,
name,
None,
del_rec_buf,
)
except WERRORError as e:
if e.args[
0] != werror.WERR_DNS_ERROR_NAME_DOES_NOT_EXIST:
raise
for ip_address in ip_address_list:
if _is_valid_ipv6(ip_address):
logger.info("Adding DNS AAAA record %s.%s for IPv6 IP: %s" %
(name, zone, ip_address))
rec = AAAARecord(ip_address)
elif _is_valid_ipv4(ip_address):
logger.info("Adding DNS A record %s.%s for IPv4 IP: %s" %
(name, zone, ip_address))
rec = ARecord(ip_address)
else:
raise ValueError('Invalid IP: {}'.format(ip_address))
# Add record
add_rec_buf = dnsserver.DNS_RPC_RECORD_BUF()
add_rec_buf.rec = rec
dns_conn.DnssrvUpdateRecord2(
client_version,
0,
server,
zone,
name,
add_rec_buf,
None,
)
if (len(ip_address_list) > 0):
domaindns_zone_dn = ldb.Dn(
samdb,
'DC=DomainDnsZones,%s' % samdb.get_default_basedn(),
)
dns_a_dn, ldap_record = samdb.dns_lookup(
"%s.%s" % (name, zone),
dns_partition=domaindns_zone_dn,
)
# Make the DC own the DNS record, not the administrator
sd_helper.modify_sd_on_dn(
dns_a_dn,
change_owner_sd,
controls=[
"sd_flags:1:%d" %
(security.SECINFO_OWNER | security.SECINFO_GROUP)
],
)