#ifndef _LINUX_ATMBR2684_H#define _LINUX_ATMBR2684_H #include <linux/types.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 */