/* SPDX-License-Identifier: GPL-2.0-only WITH Linux-syscall-note */
/*
 * Copyright (c) 2021 Taehee Yoo <[email protected]>
 */
#ifndef _AMT_H_
#define _AMT_H_

enum ifla_amt_mode {
    /* AMT interface works as Gateway mode.
     * The Gateway mode encapsulates IGMP/MLD traffic and decapsulates
     * multicast traffic.
     */
    AMT_MODE_GATEWAY = 0,
    /* AMT interface works as Relay mode.
     * The Relay mode encapsulates multicast traffic and decapsulates
     * IGMP/MLD traffic.
     */
    AMT_MODE_RELAY,
    __AMT_MODE_MAX,
};

#define AMT_MODE_MAX (__AMT_MODE_MAX - 1)

enum {
    IFLA_AMT_UNSPEC,
    /* This attribute specify mode etier Gateway or Relay. */
    IFLA_AMT_MODE,
    /* This attribute specify Relay port.
     * AMT interface is created as Gateway mode, this attribute is used
     * to specify relay(remote) port.
     * AMT interface is created as Relay mode, this attribute is used
     * as local port.
     */
    IFLA_AMT_RELAY_PORT,
    /* This attribute specify Gateway port.
     * AMT interface is created as Gateway mode, this attribute is used
     * as local port.
     * AMT interface is created as Relay mode, this attribute is not used.
     */
    IFLA_AMT_GATEWAY_PORT,
    /* This attribute specify physical device */
    IFLA_AMT_LINK,
    /* This attribute specify local ip address */
    IFLA_AMT_LOCAL_IP,
    /* This attribute specify Relay ip address.
     * So, this is not used by Relay.
     */
    IFLA_AMT_REMOTE_IP,
    /* This attribute specify Discovery ip address.
     * When Gateway get started, it send discovery message to find the
     * Relay's ip address.
     * So, this is not used by Relay.
     */
    IFLA_AMT_DISCOVERY_IP,
    /* This attribute specify number of maximum tunnel. */
    IFLA_AMT_MAX_TUNNELS,
    __IFLA_AMT_MAX,
};

#define IFLA_AMT_MAX (__IFLA_AMT_MAX - 1)

#endif /* _AMT_H_ */