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/* Copyright (C) CZ.NIC, z.s.p.o. <knot-resolver@labs.nic.cz>
* SPDX-License-Identifier: GPL-3.0-or-later
*/
#pragma once
#include <stdint.h>
#include "lib/utils.h"
enum proxy2_command {
PROXY2_CMD_LOCAL = 0x0,
PROXY2_CMD_PROXY = 0x1
};
/** Parsed result of the PROXY protocol */
struct proxy_result {
/** Proxy command - PROXY or LOCAL. */
enum proxy2_command command;
/** Address family from netinet library (e.g. AF_INET6). */
int family;
/** Protocol type from socket library (e.g. SOCK_STREAM). */
int protocol;
/** Parsed source address and port. */
union kr_sockaddr src_addr;
/** Parsed destination address and port. */
union kr_sockaddr dst_addr;
/** `true` = client has used TLS with the proxy. If TLS padding is
* enabled, it will be used even if the communication between kresd and
* the proxy is unencrypted. */
bool has_tls : 1;
};
/** Checks whether the use of PROXYv2 protocol is allowed for the specified
* address. */
bool proxy_allowed(const struct sockaddr *saddr);
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