Line data Source code
1 : /*
2 : Unix SMB/CIFS implementation.
3 :
4 : DNS server utils
5 :
6 : Copyright (C) 2010 Kai Blin <kai@samba.org>
7 :
8 : This program is free software; you can redistribute it and/or modify
9 : it under the terms of the GNU General Public License as published by
10 : the Free Software Foundation; either version 3 of the License, or
11 : (at your option) any later version.
12 :
13 : This program is distributed in the hope that it will be useful,
14 : but WITHOUT ANY WARRANTY; without even the implied warranty of
15 : MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 : GNU General Public License for more details.
17 :
18 : You should have received a copy of the GNU General Public License
19 : along with this program. If not, see <http://www.gnu.org/licenses/>.
20 : */
21 :
22 : #include "includes.h"
23 : #include "libcli/util/ntstatus.h"
24 : #include "libcli/util/werror.h"
25 : #include "librpc/ndr/libndr.h"
26 : #include "librpc/gen_ndr/ndr_dns.h"
27 : #include "librpc/gen_ndr/ndr_dnsp.h"
28 : #include <ldb.h>
29 : #include "dsdb/samdb/samdb.h"
30 : #include "dsdb/common/util.h"
31 : #include "dns_server/dns_server.h"
32 :
33 : #undef DBGC_CLASS
34 : #define DBGC_CLASS DBGC_DNS
35 :
36 :
37 : /*
38 : * Lookup a DNS record, performing an exact match.
39 : * i.e. DNS wild card records are not considered.
40 : */
41 2817 : WERROR dns_lookup_records(struct dns_server *dns,
42 : TALLOC_CTX *mem_ctx,
43 : struct ldb_dn *dn,
44 : struct dnsp_DnssrvRpcRecord **records,
45 : uint16_t *rec_count)
46 : {
47 2817 : return dns_common_lookup(dns->samdb, mem_ctx, dn,
48 : records, rec_count, NULL);
49 : }
50 :
51 : /*
52 : * Lookup a DNS record, will match DNS wild card records if an exact match
53 : * is not found.
54 : */
55 2684 : WERROR dns_lookup_records_wildcard(struct dns_server *dns,
56 : TALLOC_CTX *mem_ctx,
57 : struct ldb_dn *dn,
58 : struct dnsp_DnssrvRpcRecord **records,
59 : uint16_t *rec_count)
60 : {
61 2684 : return dns_common_wildcard_lookup(dns->samdb, mem_ctx, dn,
62 : records, rec_count);
63 : }
64 :
65 1228 : WERROR dns_replace_records(struct dns_server *dns,
66 : TALLOC_CTX *mem_ctx,
67 : struct ldb_dn *dn,
68 : bool needs_add,
69 : struct dnsp_DnssrvRpcRecord *records,
70 : uint16_t rec_count)
71 : {
72 : /* TODO: Autogenerate this somehow */
73 1228 : uint32_t dwSerial = 110;
74 1228 : return dns_common_replace(dns->samdb, mem_ctx, dn,
75 : needs_add, dwSerial, records, rec_count);
76 : }
77 :
78 2681 : bool dns_authoritative_for_zone(struct dns_server *dns,
79 : const char *name)
80 : {
81 0 : const struct dns_server_zone *z;
82 2681 : size_t host_part_len = 0;
83 :
84 2681 : if (name == NULL) {
85 0 : return false;
86 : }
87 :
88 2681 : if (strcmp(name, "") == 0) {
89 0 : return true;
90 : }
91 4683 : for (z = dns->zones; z != NULL; z = z->next) {
92 0 : bool match;
93 :
94 4648 : match = dns_name_match(z->name, name, &host_part_len);
95 4648 : if (match) {
96 2646 : break;
97 : }
98 : }
99 2681 : if (z == NULL) {
100 35 : return false;
101 : }
102 :
103 2646 : return true;
104 : }
105 :
106 2589 : const char *dns_get_authoritative_zone(struct dns_server *dns,
107 : const char *name)
108 : {
109 0 : const struct dns_server_zone *z;
110 2589 : size_t host_part_len = 0;
111 :
112 4428 : for (z = dns->zones; z != NULL; z = z->next) {
113 0 : bool match;
114 4428 : match = dns_name_match(z->name, name, &host_part_len);
115 4428 : if (match) {
116 2589 : return z->name;
117 : }
118 : }
119 0 : return NULL;
120 : }
121 :
122 7897 : WERROR dns_name2dn(struct dns_server *dns,
123 : TALLOC_CTX *mem_ctx,
124 : const char *name,
125 : struct ldb_dn **dn)
126 : {
127 7897 : return dns_common_name2dn(dns->samdb, dns->zones,
128 : mem_ctx, name, dn);
129 : }
130 :
|
