s4:dns_server: allocate substructures of struct dns_request_state on the correct...
[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
28 struct tsocket_address;
29
30 struct dns_server_zone {
31         struct dns_server_zone *prev, *next;
32         const char *name;
33         struct ldb_dn *dn;
34 };
35
36 struct dns_server_tkey {
37         const char *name;
38         enum dns_tkey_mode mode;
39         const char *algorithm;
40         struct auth_session_info *session_info;
41         struct gensec_security *gensec;
42         bool complete;
43 };
44
45 #define TKEY_BUFFER_SIZE 128
46
47 struct dns_server_tkey_store {
48         struct dns_server_tkey **tkeys;
49         uint16_t next_idx;
50         uint16_t size;
51 };
52
53 struct dns_server {
54         struct task_server *task;
55         struct ldb_context *samdb;
56         struct dns_server_zone *zones;
57         struct dns_server_tkey_store *tkeys;
58         struct cli_credentials *server_credentials;
59         uint16_t max_payload;
60 };
61
62 struct dns_request_state {
63         TALLOC_CTX *mem_ctx;
64         uint16_t flags;
65         bool authenticated;
66         bool sign;
67         char *key_name;
68         struct dns_res_rec *tsig;
69         uint16_t tsig_error;
70 };
71
72 struct tevent_req *dns_server_process_query_send(
73         TALLOC_CTX *mem_ctx, struct tevent_context *ev,
74         struct dns_server *dns, struct dns_request_state *req_state,
75         const struct dns_name_packet *in);
76 WERROR dns_server_process_query_recv(
77         struct tevent_req *req, TALLOC_CTX *mem_ctx,
78         struct dns_res_rec **answers,    uint16_t *ancount,
79         struct dns_res_rec **nsrecs,     uint16_t *nscount,
80         struct dns_res_rec **additional, uint16_t *arcount);
81
82 WERROR dns_server_process_update(struct dns_server *dns,
83                                  const struct dns_request_state *state,
84                                  TALLOC_CTX *mem_ctx,
85                                  const struct dns_name_packet *in,
86                                  struct dns_res_rec **prereqs,    uint16_t *prereq_count,
87                                  struct dns_res_rec **updates,    uint16_t *update_count,
88                                  struct dns_res_rec **additional, uint16_t *arcount);
89
90 bool dns_name_match(const char *zone, const char *name, size_t *host_part_len);
91 bool dns_name_equal(const char *name1, const char *name2);
92 bool dns_records_match(struct dnsp_DnssrvRpcRecord *rec1,
93                        struct dnsp_DnssrvRpcRecord *rec2);
94 bool dns_authorative_for_zone(struct dns_server *dns,
95                               const char *name);
96 WERROR dns_lookup_records(struct dns_server *dns,
97                           TALLOC_CTX *mem_ctx,
98                           struct ldb_dn *dn,
99                           struct dnsp_DnssrvRpcRecord **records,
100                           uint16_t *rec_count);
101 WERROR dns_replace_records(struct dns_server *dns,
102                            TALLOC_CTX *mem_ctx,
103                            struct ldb_dn *dn,
104                            bool needs_add,
105                            struct dnsp_DnssrvRpcRecord *records,
106                            uint16_t rec_count);
107 WERROR dns_name2dn(struct dns_server *dns,
108                    TALLOC_CTX *mem_ctx,
109                    const char *name,
110                    struct ldb_dn **_dn);
111 WERROR dns_generate_options(struct dns_server *dns,
112                             TALLOC_CTX *mem_ctx,
113                             struct dns_res_rec **options);
114 struct dns_server_tkey *dns_find_tkey(struct dns_server_tkey_store *store,
115                                       const char *name);
116 WERROR dns_verify_tsig(struct dns_server *dns,
117                        TALLOC_CTX *mem_ctx,
118                        struct dns_request_state *state,
119                        struct dns_name_packet *packet,
120                        DATA_BLOB *in);
121 WERROR dns_sign_tsig(struct dns_server *dns,
122                      TALLOC_CTX *mem_ctx,
123                      struct dns_request_state *state,
124                      struct dns_name_packet *packet,
125                      uint16_t error);
126
127 #include "source4/dns_server/dnsserver_common.h"
128
129 #endif /* __DNS_SERVER_H__ */