/* SPDX-License-Identifier: GPL-2.0-or-later
 * Copyright (c) 2026 Red Hat GmbH
 * Author: Stefano Brivio <sbrivio@redhat.com>
 */

#ifndef PORTS_H
#define PORTS_H

#include <stdbool.h>

#include "inany.h"

/* Number of ports for both TCP and UDP */
#define	NUM_PORTS	(1U << 16)

/**
 * enum fwd_mode - Overall forwarding mode for a direction and protocol
 * @FWD_MODE_UNSET	Initial value, not parsed/configured yet
 * @FWD_MODE_SPEC	Forward specified ports
 * @FWD_MODE_NONE	No forwarded ports
 * @FWD_MODE_AUTO	Automatic detection and forwarding based on bound ports
 * @FWD_MODE_ALL	Bind all free ports
 */
enum fwd_mode {
	FWD_MODE_UNSET = 0,
	FWD_MODE_SPEC,
	FWD_MODE_NONE,
	FWD_MODE_AUTO,
	FWD_MODE_ALL,
};

struct fwd_table;

void fwd_probe_ephemeral(void);
bool fwd_port_is_ephemeral(in_port_t port);
void conf_ports_range_except(char optname, const char *optarg,
			     struct fwd_table *fwd,
			     const union inany_addr *addr, const char *ifname,
			     uint16_t first, uint16_t last,
			     const uint8_t *exclude, uint16_t to, uint8_t flags,
			     bool can_bindtodevice,
			     bool v4_enabled, bool v6_enabled);
void conf_ports(char optname, const char *optarg, struct fwd_table *fwd,
		enum fwd_mode *mode, bool can_bindtodevice,
		bool v4_enabled, bool v6_enabled);


#endif /* PORTS_H */