blob: fbf437d9b17fcb4a96e43ac5190d3db719ab4b25 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
|
/* Copyright (C) 2022 CZ.NIC, z.s.p.o. <knot-dns@labs.nic.cz>
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 <https://www.gnu.org/licenses/>.
*/
#pragma once
#include "knot/conf/conf.h"
#include "knot/nameserver/log.h"
#include "libknot/packet/pkt.h"
/*!
* \brief EDNS data.
*/
typedef struct {
uint16_t max_payload;
bool do_flag;
bool expire_option;
} query_edns_data_t;
typedef enum {
QUERY_EDNS_OPT_DO = 1 << 0,
QUERY_EDNS_OPT_EXPIRE = 1 << 1,
} query_edns_opt_t;
/*!
* \brief Initialize new packet.
*
* Clear the packet and generate random transaction ID.
*
* \param pkt Packet to initialize.
*/
void query_init_pkt(knot_pkt_t *pkt);
/*!
* \brief Initialize EDNS parameters from server configuration.
*
* \param[in] conf Server configuration.
* \param[in] remote_family Address family for remote host.
* \param[in] opts EDNS options.
*
* \return EDNS parameters.
*/
query_edns_data_t query_edns_data_init(conf_t *conf, int remote_family,
query_edns_opt_t opts);
/*!
* \brief Append EDNS into the packet.
*
* \param pkt Packet to add EDNS into.
* \param edns EDNS data.
*
* \return KNOT_E*
*/
int query_put_edns(knot_pkt_t *pkt, const query_edns_data_t *edns);
|
