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#ifndef HEADER_CURL_HTTPSRR_H
#define HEADER_CURL_HTTPSRR_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
* SPDX-License-Identifier: curl
*
***************************************************************************/
#include "curl_setup.h"
#ifdef USE_ARES
#include <ares.h>
#endif
#ifdef USE_HTTPSRR
#define CURL_MAXLEN_host_name 253
#define MAX_HTTPSRR_ALPNS 4
struct Curl_easy;
struct Curl_https_rrinfo {
char *rrname; /* if NULL, the same as the URL hostname */
/*
* Fields from HTTPS RR. The only mandatory fields are priority and target.
* See https://datatracker.ietf.org/doc/html/rfc9460#section-14.3.2
*/
char *target;
unsigned char *ipv4hints; /* keytag = 4 */
size_t ipv4hints_len;
unsigned char *echconfiglist; /* keytag = 5 */
size_t echconfiglist_len;
unsigned char *ipv6hints; /* keytag = 6 */
size_t ipv6hints_len;
unsigned char alpns[MAX_HTTPSRR_ALPNS]; /* keytag = 1 */
/* store parsed alpnid entries in the array, end with ALPN_none */
int port; /* -1 means not set */
uint16_t priority;
BIT(no_def_alpn); /* keytag = 2 */
};
CURLcode Curl_httpsrr_set(struct Curl_easy *data,
struct Curl_https_rrinfo *hi,
uint16_t rrkey, const uint8_t *val, size_t vlen);
struct Curl_https_rrinfo *
Curl_httpsrr_dup_move(struct Curl_https_rrinfo *rrinfo);
void Curl_httpsrr_cleanup(struct Curl_https_rrinfo *rrinfo);
/*
* Code points for DNS wire format SvcParams as per RFC 9460
*/
#define HTTPS_RR_CODE_MANDATORY 0x00
#define HTTPS_RR_CODE_ALPN 0x01
#define HTTPS_RR_CODE_NO_DEF_ALPN 0x02
#define HTTPS_RR_CODE_PORT 0x03
#define HTTPS_RR_CODE_IPV4 0x04
#define HTTPS_RR_CODE_ECH 0x05
#define HTTPS_RR_CODE_IPV6 0x06
#ifdef USE_ARES
CURLcode Curl_httpsrr_from_ares(struct Curl_easy *data,
const ares_dns_record_t *dnsrec,
struct Curl_https_rrinfo *hinfo);
#endif /* USE_ARES */
#endif /* USE_HTTPSRR */
#endif /* HEADER_CURL_HTTPSRR_H */
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