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/*
Unix SMB/CIFS implementation.
DNS structures
Copyright (C) 2010 Kai Blin <kai@samba.org>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __DNS_SERVER_H__
#define __DNS_SERVER_H__
#include "librpc/gen_ndr/dns.h"
#include "librpc/gen_ndr/ndr_dnsp.h"
struct tsocket_address;
struct dns_server_zone {
struct dns_server_zone *prev, *next;
const char *name;
struct ldb_dn *dn;
};
struct dns_server_tkey {
const char *name;
enum dns_tkey_mode mode;
const char *algorithm;
struct auth_session_info *session_info;
struct gensec_security *gensec;
bool complete;
};
#define TKEY_BUFFER_SIZE 128
struct dns_server_tkey_store {
struct dns_server_tkey **tkeys;
uint16_t next_idx;
uint16_t size;
};
struct dns_server {
struct task_server *task;
struct ldb_context *samdb;
struct dns_server_zone *zones;
struct dns_server_tkey_store *tkeys;
struct cli_credentials *server_credentials;
uint16_t max_payload;
};
struct dns_request_state {
uint16_t flags;
bool authenticated;
bool sign;
char *key_name;
struct dns_res_rec *tsig;
uint16_t tsig_error;
};
struct tevent_req *dns_server_process_query_send(
TALLOC_CTX *mem_ctx, struct tevent_context *ev,
struct dns_server *dns, struct dns_request_state *req_state,
const struct dns_name_packet *in);
WERROR dns_server_process_query_recv(
struct tevent_req *req, TALLOC_CTX *mem_ctx,
struct dns_res_rec **answers, uint16_t *ancount,
struct dns_res_rec **nsrecs, uint16_t *nscount,
struct dns_res_rec **additional, uint16_t *arcount);
WERROR dns_server_process_update(struct dns_server *dns,
struct dns_request_state *state,
TALLOC_CTX *mem_ctx,
struct dns_name_packet *in,
struct dns_res_rec **prereqs, uint16_t *prereq_count,
struct dns_res_rec **updates, uint16_t *update_count,
struct dns_res_rec **additional, uint16_t *arcount);
uint8_t werr_to_dns_err(WERROR werror);
bool dns_name_match(const char *zone, const char *name, size_t *host_part_len);
bool dns_name_equal(const char *name1, const char *name2);
bool dns_records_match(struct dnsp_DnssrvRpcRecord *rec1,
struct dnsp_DnssrvRpcRecord *rec2);
bool dns_authorative_for_zone(struct dns_server *dns,
const char *name);
WERROR dns_lookup_records(struct dns_server *dns,
TALLOC_CTX *mem_ctx,
struct ldb_dn *dn,
struct dnsp_DnssrvRpcRecord **records,
uint16_t *rec_count);
WERROR dns_replace_records(struct dns_server *dns,
TALLOC_CTX *mem_ctx,
struct ldb_dn *dn,
bool needs_add,
const struct dnsp_DnssrvRpcRecord *records,
uint16_t rec_count);
WERROR dns_name2dn(struct dns_server *dns,
TALLOC_CTX *mem_ctx,
const char *name,
struct ldb_dn **_dn);
WERROR dns_generate_options(struct dns_server *dns,
TALLOC_CTX *mem_ctx,
struct dns_res_rec **options);
struct dns_server_tkey *dns_find_tkey(struct dns_server_tkey_store *store,
const char *name);
WERROR dns_verify_tsig(struct dns_server *dns,
TALLOC_CTX *mem_ctx,
struct dns_request_state *state,
struct dns_name_packet *packet,
DATA_BLOB *in);
WERROR dns_sign_tsig(struct dns_server *dns,
TALLOC_CTX *mem_ctx,
struct dns_request_state *state,
struct dns_name_packet *packet,
uint16_t error);
#define DNS_ERR(err_str) WERR_DNS_ERROR_RCODE_##err_str
#endif /* __DNS_SERVER_H__ */
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