mirror of
https://github.com/samba-team/samba.git
synced 2024-12-24 21:34:56 +03:00
070e7113d4
We have had three nearly identical functions called dns_record[s]_match. This patch merges two of them, attempting to keep the good bits and not the bugs. That means: 1. We use the AAAA match from dlz, which is agnostic to all the billions of ways you can write the same IPv6 address (case sensitivity is just the beginning). 2. We lean more on the TXT match from dns_utils, because the dlz used a weird bitwise &= operator, but we adjust to exit early. 3. Keep HINFO from dlz (for now). 4. Use the dns_name_equal() that was already in dns_common, which was used by dlz. dns_utils had a strange one that probably did the same thing. Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz> Reviewed-by: Andrew Bartlett <abartlet@samba.org>
131 lines
3.1 KiB
C
131 lines
3.1 KiB
C
/*
|
|
Unix SMB/CIFS implementation.
|
|
|
|
DNS server utils
|
|
|
|
Copyright (C) 2010 Kai Blin <kai@samba.org>
|
|
|
|
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/dns_server.h"
|
|
|
|
#undef DBGC_CLASS
|
|
#define DBGC_CLASS DBGC_DNS
|
|
|
|
|
|
/*
|
|
* Lookup a DNS record, performing an exact match.
|
|
* i.e. DNS wild card records are not considered.
|
|
*/
|
|
WERROR dns_lookup_records(struct dns_server *dns,
|
|
TALLOC_CTX *mem_ctx,
|
|
struct ldb_dn *dn,
|
|
struct dnsp_DnssrvRpcRecord **records,
|
|
uint16_t *rec_count)
|
|
{
|
|
return dns_common_lookup(dns->samdb, mem_ctx, dn,
|
|
records, rec_count, NULL);
|
|
}
|
|
|
|
/*
|
|
* Lookup a DNS record, will match DNS wild card records if an exact match
|
|
* is not found.
|
|
*/
|
|
WERROR dns_lookup_records_wildcard(struct dns_server *dns,
|
|
TALLOC_CTX *mem_ctx,
|
|
struct ldb_dn *dn,
|
|
struct dnsp_DnssrvRpcRecord **records,
|
|
uint16_t *rec_count)
|
|
{
|
|
return dns_common_wildcard_lookup(dns->samdb, mem_ctx, dn,
|
|
records, rec_count);
|
|
}
|
|
|
|
WERROR dns_replace_records(struct dns_server *dns,
|
|
TALLOC_CTX *mem_ctx,
|
|
struct ldb_dn *dn,
|
|
bool needs_add,
|
|
struct dnsp_DnssrvRpcRecord *records,
|
|
uint16_t rec_count)
|
|
{
|
|
/* TODO: Autogenerate this somehow */
|
|
uint32_t dwSerial = 110;
|
|
return dns_common_replace(dns->samdb, mem_ctx, dn,
|
|
needs_add, dwSerial, records, rec_count);
|
|
}
|
|
|
|
bool dns_authoritative_for_zone(struct dns_server *dns,
|
|
const char *name)
|
|
{
|
|
const struct dns_server_zone *z;
|
|
size_t host_part_len = 0;
|
|
|
|
if (name == NULL) {
|
|
return false;
|
|
}
|
|
|
|
if (strcmp(name, "") == 0) {
|
|
return true;
|
|
}
|
|
for (z = dns->zones; z != NULL; z = z->next) {
|
|
bool match;
|
|
|
|
match = dns_name_match(z->name, name, &host_part_len);
|
|
if (match) {
|
|
break;
|
|
}
|
|
}
|
|
if (z == NULL) {
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
const char *dns_get_authoritative_zone(struct dns_server *dns,
|
|
const char *name)
|
|
{
|
|
const struct dns_server_zone *z;
|
|
size_t host_part_len = 0;
|
|
|
|
for (z = dns->zones; z != NULL; z = z->next) {
|
|
bool match;
|
|
match = dns_name_match(z->name, name, &host_part_len);
|
|
if (match) {
|
|
return z->name;
|
|
}
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
WERROR dns_name2dn(struct dns_server *dns,
|
|
TALLOC_CTX *mem_ctx,
|
|
const char *name,
|
|
struct ldb_dn **dn)
|
|
{
|
|
return dns_common_name2dn(dns->samdb, dns->zones,
|
|
mem_ctx, name, dn);
|
|
}
|
|
|