#ifndef _LINUX_ATMBR2684_H

#define _LINUX_ATMBR2684_H

#include <linux/atm.h>

#include <linux/if.h>		/* For IFNAMSIZ */

/*

 * Type of media we're bridging (ethernet, token ring, etc)  Currently only

 * ethernet is supported

 */

#define BR2684_MEDIA_ETHERNET	(0)	/* 802.3 */

#define BR2684_MEDIA_802_4	(1)	/* 802.4 */

#define BR2684_MEDIA_TR		(2)	/* 802.5 - token ring */

#define BR2684_MEDIA_FDDI	(3)

#define BR2684_MEDIA_802_6	(4)	/* 802.6 */

					/* used only at device creation:  */

#define BR2684_FLAG_ROUTED	(1<<16)	/* payload is routed, not bridged */

/*

 * Is there FCS inbound on this VC?  This currently isn't supported.

 */

#define BR2684_FCSIN_NO		(0)

#define BR2684_FCSIN_IGNORE	(1)

#define BR2684_FCSIN_VERIFY	(2)

/*

 * Is there FCS outbound on this VC?  This currently isn't supported.

 */

#define BR2684_FCSOUT_NO	(0)

#define BR2684_FCSOUT_SENDZERO	(1)

#define BR2684_FCSOUT_GENERATE	(2)

/*

 * Does this VC include LLC encapsulation?

 */

#define BR2684_ENCAPS_VC	(0)	/* VC-mux */

#define BR2684_ENCAPS_LLC	(1)

#define BR2684_ENCAPS_AUTODETECT (2)	/* Unsuported */

/*

 * Is this VC bridged or routed?

 */

#define BR2684_PAYLOAD_ROUTED   (0)

#define BR2684_PAYLOAD_BRIDGED  (1)

/*

 * This is for the ATM_NEWBACKENDIF call - these are like socket families:

 * the first element of the structure is the backend number and the rest

 * is per-backend specific

 */

struct atm_newif_br2684 {

	atm_backend_t backend_num;	/* ATM_BACKEND_BR2684 */

	int media;		/* BR2684_MEDIA_*, flags in upper bits */

	char ifname[IFNAMSIZ];

	int mtu;

};

/*

 * This structure is used to specify a br2684 interface - either by a

 * positive integer (returned by ATM_NEWBACKENDIF) or the interfaces name

 */

#define BR2684_FIND_BYNOTHING	(0)

#define BR2684_FIND_BYNUM	(1)

#define BR2684_FIND_BYIFNAME	(2)

struct br2684_if_spec {

	int method;		/* BR2684_FIND_* */

	union {

		char ifname[IFNAMSIZ];

		int devnum;

	} spec;

};

/*

 * This is for the ATM_SETBACKEND call - these are like socket families:

 * the first element of the structure is the backend number and the rest

 * is per-backend specific

 */

struct atm_backend_br2684 {

	atm_backend_t backend_num;	/* ATM_BACKEND_BR2684 */

	struct br2684_if_spec ifspec;

	int fcs_in;		/* BR2684_FCSIN_* */

	int fcs_out;		/* BR2684_FCSOUT_* */

	int fcs_auto;		/* 1: fcs_{in,out} disabled if no FCS rx'ed */

	int encaps;		/* BR2684_ENCAPS_* */

	int has_vpiid;		/* 1: use vpn_id - Unsupported */

	__u8 vpn_id[7];

	int send_padding;	/* unsupported */

	int min_size;		/* we will pad smaller packets than this */

};

/*

 * The BR2684_SETFILT ioctl is an experimental mechanism for folks

 * terminating a large number of IP-only vcc's.  When netfilter allows

 * efficient per-if in/out filters, this support will be removed

 */

struct br2684_filter {

	__be32 prefix;		/* network byte order */

	__be32 netmask;		/* 0 = disable filter */

};

struct br2684_filter_set {

	struct br2684_if_spec ifspec;

	struct br2684_filter filter;

};

enum br2684_payload {

	p_routed = BR2684_PAYLOAD_ROUTED,

	p_bridged = BR2684_PAYLOAD_BRIDGED,

};

#define BR2684_SETFILT	_IOW( 'a', ATMIOC_BACKEND + 0, \

				struct br2684_filter_set)

#endif /* _LINUX_ATMBR2684_H */