CVE-2016-2115: s3:winbindd: use lp_client_ipc_{min,max}_protocol()
[samba.git] / source4 / dns_server / dns_server.h
1 /*
2    Unix SMB/CIFS implementation.
3
4    DNS structures
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 #ifndef __DNS_SERVER_H__
23 #define __DNS_SERVER_H__
24
25 #include "librpc/gen_ndr/dns.h"
26 #include "librpc/gen_ndr/ndr_dnsp.h"
27 #include "dnsserver_common.h"
28
29 struct tsocket_address;
30 struct dns_server_tkey {
31         const char *name;
32         enum dns_tkey_mode mode;
33         const char *algorithm;
34         struct auth_session_info *session_info;
35         struct gensec_security *gensec;
36         bool complete;
37 };
38
39 #define TKEY_BUFFER_SIZE 128
40
41 struct dns_server_tkey_store {
42         struct dns_server_tkey **tkeys;
43         uint16_t next_idx;
44         uint16_t size;
45 };
46
47 struct dns_server {
48         struct task_server *task;
49         struct ldb_context *samdb;
50         struct dns_server_zone *zones;
51         struct dns_server_tkey_store *tkeys;
52         struct cli_credentials *server_credentials;
53         uint16_t max_payload;
54 };
55
56 struct dns_request_state {
57         TALLOC_CTX *mem_ctx;
58         uint16_t flags;
59         bool authenticated;
60         bool sign;
61         char *key_name;
62         struct dns_res_rec *tsig;
63         uint16_t tsig_error;
64 };
65
66 struct tevent_req *dns_server_process_query_send(
67         TALLOC_CTX *mem_ctx, struct tevent_context *ev,
68         struct dns_server *dns, struct dns_request_state *req_state,
69         const struct dns_name_packet *in);
70 WERROR dns_server_process_query_recv(
71         struct tevent_req *req, TALLOC_CTX *mem_ctx,
72         struct dns_res_rec **answers,    uint16_t *ancount,
73         struct dns_res_rec **nsrecs,     uint16_t *nscount,
74         struct dns_res_rec **additional, uint16_t *arcount);
75
76 WERROR dns_server_process_update(struct dns_server *dns,
77                                  const struct dns_request_state *state,
78                                  TALLOC_CTX *mem_ctx,
79                                  const struct dns_name_packet *in,
80                                  struct dns_res_rec **prereqs,    uint16_t *prereq_count,
81                                  struct dns_res_rec **updates,    uint16_t *update_count,
82                                  struct dns_res_rec **additional, uint16_t *arcount);
83
84 bool dns_name_equal(const char *name1, const char *name2);
85 bool dns_records_match(struct dnsp_DnssrvRpcRecord *rec1,
86                        struct dnsp_DnssrvRpcRecord *rec2);
87 bool dns_authorative_for_zone(struct dns_server *dns,
88                               const char *name);
89 const char *dns_get_authoritative_zone(struct dns_server *dns,
90                                        const char *name);
91 WERROR dns_lookup_records(struct dns_server *dns,
92                           TALLOC_CTX *mem_ctx,
93                           struct ldb_dn *dn,
94                           struct dnsp_DnssrvRpcRecord **records,
95                           uint16_t *rec_count);
96 WERROR dns_replace_records(struct dns_server *dns,
97                            TALLOC_CTX *mem_ctx,
98                            struct ldb_dn *dn,
99                            bool needs_add,
100                            struct dnsp_DnssrvRpcRecord *records,
101                            uint16_t rec_count);
102 WERROR dns_name2dn(struct dns_server *dns,
103                    TALLOC_CTX *mem_ctx,
104                    const char *name,
105                    struct ldb_dn **_dn);
106 WERROR dns_generate_options(struct dns_server *dns,
107                             TALLOC_CTX *mem_ctx,
108                             struct dns_res_rec **options);
109 struct dns_server_tkey *dns_find_tkey(struct dns_server_tkey_store *store,
110                                       const char *name);
111 WERROR dns_verify_tsig(struct dns_server *dns,
112                        TALLOC_CTX *mem_ctx,
113                        struct dns_request_state *state,
114                        struct dns_name_packet *packet,
115                        DATA_BLOB *in);
116 WERROR dns_sign_tsig(struct dns_server *dns,
117                      TALLOC_CTX *mem_ctx,
118                      struct dns_request_state *state,
119                      struct dns_name_packet *packet,
120                      uint16_t error);
121
122 #include "source4/dns_server/dnsserver_common.h"
123
124 #endif /* __DNS_SERVER_H__ */