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 {
  37         struct task_server *task;
  38         struct ldb_context *samdb;
  39         struct dns_server_zone *zones;
  40 };
  41
  42 struct dns_request_state {
  43         uint16_t flags;
  44 };
  45
  46 struct tevent_req *dns_server_process_query_send(
  47         TALLOC_CTX *mem_ctx, struct tevent_context *ev,
  48         struct dns_server *dns, struct dns_request_state *req_state,
  49         const struct dns_name_packet *in);
  50 WERROR dns_server_process_query_recv(
  51         struct tevent_req *req, TALLOC_CTX *mem_ctx,
  52         struct dns_res_rec **answers,    uint16_t *ancount,
  53         struct dns_res_rec **nsrecs,     uint16_t *nscount,
  54         struct dns_res_rec **additional, uint16_t *arcount);
  55
  56 WERROR dns_server_process_update(struct dns_server *dns,
  57                                  struct dns_request_state *state,
  58                                  TALLOC_CTX *mem_ctx,
  59                                  struct dns_name_packet *in,
  60                                  struct dns_res_rec **prereqs,    uint16_t *prereq_count,
  61                                  struct dns_res_rec **updates,    uint16_t *update_count,
  62                                  struct dns_res_rec **additional, uint16_t *arcount);
  63
  64 uint8_t werr_to_dns_err(WERROR werror);
  65 bool dns_name_match(const char *zone, const char *name, size_t *host_part_len);
  66 bool dns_name_equal(const char *name1, const char *name2);
  67 bool dns_records_match(struct dnsp_DnssrvRpcRecord *rec1,
  68                        struct dnsp_DnssrvRpcRecord *rec2);
  69 bool dns_authorative_for_zone(struct dns_server *dns,
  70                               const char *name);
  71 WERROR dns_lookup_records(struct dns_server *dns,
  72                           TALLOC_CTX *mem_ctx,
  73                           struct ldb_dn *dn,
  74                           struct dnsp_DnssrvRpcRecord **records,
  75                           uint16_t *rec_count);
  76 WERROR dns_replace_records(struct dns_server *dns,
  77                            TALLOC_CTX *mem_ctx,
  78                            struct ldb_dn *dn,
  79                            bool needs_add,
  80                            const struct dnsp_DnssrvRpcRecord *records,
  81                            uint16_t rec_count);
  82 WERROR dns_name2dn(struct dns_server *dns,
  83                    TALLOC_CTX *mem_ctx,
  84                    const char *name,
  85                    struct ldb_dn **_dn);
  86
  87 #define DNS_ERR(err_str) WERR_DNS_ERROR_RCODE_##err_str
  88 #endif /* __DNS_SERVER_H__ */