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         struct auth_session_info *session_info;
  40         struct gensec_security *gensec;
  41         bool complete;
  42 };
  43
  44 #define TKEY_BUFFER_SIZE 128
  45
  46 struct dns_server_tkey_store {
  47         struct dns_server_tkey **tkeys;
  48         uint16_t next_idx;
  49         uint16_t size;
  50 };
  51
  52 struct dns_server {
  53         struct task_server *task;
  54         struct ldb_context *samdb;
  55         struct dns_server_zone *zones;
  56         struct dns_server_tkey_store *tkeys;
  57         struct cli_credentials *server_credentials;
  58 };
  59
  60 struct dns_request_state {
  61         uint16_t flags;
  62 };
  63
  64 struct tevent_req *dns_server_process_query_send(
  65         TALLOC_CTX *mem_ctx, struct tevent_context *ev,
  66         struct dns_server *dns, struct dns_request_state *req_state,
  67         const struct dns_name_packet *in);
  68 WERROR dns_server_process_query_recv(
  69         struct tevent_req *req, TALLOC_CTX *mem_ctx,
  70         struct dns_res_rec **answers,    uint16_t *ancount,
  71         struct dns_res_rec **nsrecs,     uint16_t *nscount,
  72         struct dns_res_rec **additional, uint16_t *arcount);
  73
  74 WERROR dns_server_process_update(struct dns_server *dns,
  75                                  struct dns_request_state *state,
  76                                  TALLOC_CTX *mem_ctx,
  77                                  struct dns_name_packet *in,
  78                                  struct dns_res_rec **prereqs,    uint16_t *prereq_count,
  79                                  struct dns_res_rec **updates,    uint16_t *update_count,
  80                                  struct dns_res_rec **additional, uint16_t *arcount);
  81
  82 uint8_t werr_to_dns_err(WERROR werror);
  83 bool dns_name_match(const char *zone, const char *name, size_t *host_part_len);
  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 WERROR dns_lookup_records(struct dns_server *dns,
  90                           TALLOC_CTX *mem_ctx,
  91                           struct ldb_dn *dn,
  92                           struct dnsp_DnssrvRpcRecord **records,
  93                           uint16_t *rec_count);
  94 WERROR dns_replace_records(struct dns_server *dns,
  95                            TALLOC_CTX *mem_ctx,
  96                            struct ldb_dn *dn,
  97                            bool needs_add,
  98                            const struct dnsp_DnssrvRpcRecord *records,
  99                            uint16_t rec_count);
 100 WERROR dns_name2dn(struct dns_server *dns,
 101                    TALLOC_CTX *mem_ctx,
 102                    const char *name,
 103                    struct ldb_dn **_dn);
 104
 105 #define DNS_ERR(err_str) WERR_DNS_ERROR_RCODE_##err_str
 106 #endif /* __DNS_SERVER_H__ */