s4:dns_server: split out a private 'dnsserver_common' library

This will contain common code for the internal dns server, the dlz_bind9 module
and the rpc dns management server.

Bug: https://bugzilla.samba.org/show_bug.cgi?id=10749

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Michael Adam <obnox@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>

1 files changed, 68 insertions, 0 deletions

diff --git a/source4/dns_server/dnsserver_common.c b/source4/dns_server/dnsserver_common.c
new file mode 100644
index 00000000000..997ce034509
--- /dev/null
+++ b/source4/dns_server/dnsserver_common.c
@@ -0,0 +1,68 @@
+/*
+   Unix SMB/CIFS implementation.
+
+   DNS server utils
+
+   Copyright (C) 2010 Kai Blin
+   Copyright (C) 2014 Stefan Metzmacher
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+#include "libcli/util/ntstatus.h"
+#include "libcli/util/werror.h"
+#include "librpc/ndr/libndr.h"
+#include "librpc/gen_ndr/ndr_dns.h"
+#include "librpc/gen_ndr/ndr_dnsp.h"
+#include <ldb.h>
+#include "dsdb/samdb/samdb.h"
+#include "dsdb/common/util.h"
+#include "dns_server/dnsserver_common.h"
+
+#undef DBGC_CLASS
+#define DBGC_CLASS DBGC_DNS
+
+uint8_t werr_to_dns_err(WERROR werr)
+{
+	if (W_ERROR_EQUAL(WERR_OK, werr)) {
+		return DNS_RCODE_OK;
+	} else if (W_ERROR_EQUAL(DNS_ERR(FORMAT_ERROR), werr)) {
+		return DNS_RCODE_FORMERR;
+	} else if (W_ERROR_EQUAL(DNS_ERR(SERVER_FAILURE), werr)) {
+		return DNS_RCODE_SERVFAIL;
+	} else if (W_ERROR_EQUAL(DNS_ERR(NAME_ERROR), werr)) {
+		return DNS_RCODE_NXDOMAIN;
+	} else if (W_ERROR_EQUAL(WERR_DNS_ERROR_NAME_DOES_NOT_EXIST, werr)) {
+		return DNS_RCODE_NXDOMAIN;
+	} else if (W_ERROR_EQUAL(DNS_ERR(NOT_IMPLEMENTED), werr)) {
+		return DNS_RCODE_NOTIMP;
+	} else if (W_ERROR_EQUAL(DNS_ERR(REFUSED), werr)) {
+		return DNS_RCODE_REFUSED;
+	} else if (W_ERROR_EQUAL(DNS_ERR(YXDOMAIN), werr)) {
+		return DNS_RCODE_YXDOMAIN;
+	} else if (W_ERROR_EQUAL(DNS_ERR(YXRRSET), werr)) {
+		return DNS_RCODE_YXRRSET;
+	} else if (W_ERROR_EQUAL(DNS_ERR(NXRRSET), werr)) {
+		return DNS_RCODE_NXRRSET;
+	} else if (W_ERROR_EQUAL(DNS_ERR(NOTAUTH), werr)) {
+		return DNS_RCODE_NOTAUTH;
+	} else if (W_ERROR_EQUAL(DNS_ERR(NOTZONE), werr)) {
+		return DNS_RCODE_NOTZONE;
+	} else if (W_ERROR_EQUAL(DNS_ERR(BADKEY), werr)) {
+		return DNS_RCODE_BADKEY;
+	}
+	DEBUG(5, ("No mapping exists for %s\n", win_errstr(werr)));
+	return DNS_RCODE_SERVFAIL;
+}