1#ifndef _LINUX_ATMBR2684_H
2#define _LINUX_ATMBR2684_H
3
4#include <linux/atm.h>
5#include <linux/if.h>		/* For IFNAMSIZ */
6
7/*
8 * Type of media we're bridging (ethernet, token ring, etc)  Currently only
9 * ethernet is supported
10 */
11#define BR2684_MEDIA_ETHERNET	(0)	/* 802.3 */
12#define BR2684_MEDIA_802_4	(1)	/* 802.4 */
13#define BR2684_MEDIA_TR		(2)	/* 802.5 - token ring */
14#define BR2684_MEDIA_FDDI	(3)
15#define BR2684_MEDIA_802_6	(4)	/* 802.6 */
16
17/*
18 * Is there FCS inbound on this VC?  This currently isn't supported.
19 */
20#define BR2684_FCSIN_NO		(0)
21#define BR2684_FCSIN_IGNORE	(1)
22#define BR2684_FCSIN_VERIFY	(2)
23
24/*
25 * Is there FCS outbound on this VC?  This currently isn't supported.
26 */
27#define BR2684_FCSOUT_NO	(0)
28#define BR2684_FCSOUT_SENDZERO	(1)
29#define BR2684_FCSOUT_GENERATE	(2)
30
31/*
32 * Does this VC include LLC encapsulation?
33 */
34#define BR2684_ENCAPS_VC	(0)	/* VC-mux */
35#define BR2684_ENCAPS_LLC	(1)
36#define BR2684_ENCAPS_AUTODETECT (2)	/* Unsuported */
37
38/*
39 * This is for the ATM_NEWBACKENDIF call - these are like socket families:
40 * the first element of the structure is the backend number and the rest
41 * is per-backend specific
42 */
43struct atm_newif_br2684 {
44	atm_backend_t	backend_num;	/* ATM_BACKEND_BR2684 */
45	int		media;		/* BR2684_MEDIA_* */
46	char		ifname[IFNAMSIZ];
47	int		mtu;
48};
49
50/*
51 * This structure is used to specify a br2684 interface - either by a
52 * positive integer (returned by ATM_NEWBACKENDIF) or the interfaces name
53 */
54#define BR2684_FIND_BYNOTHING	(0)
55#define BR2684_FIND_BYNUM	(1)
56#define BR2684_FIND_BYIFNAME	(2)
57struct br2684_if_spec {
58	int method;			/* BR2684_FIND_* */
59	union {
60		char		ifname[IFNAMSIZ];
61		int		devnum;
62	} spec;
63};
64
65/*
66 * This is for the ATM_SETBACKEND call - these are like socket families:
67 * the first element of the structure is the backend number and the rest
68 * is per-backend specific
69 */
70struct atm_backend_br2684 {
71	atm_backend_t	backend_num;	/* ATM_BACKEND_BR2684 */
72	struct br2684_if_spec ifspec;
73	int	fcs_in;		/* BR2684_FCSIN_* */
74	int	fcs_out;	/* BR2684_FCSOUT_* */
75	int	fcs_auto;	/* 1: fcs_{in,out} disabled if no FCS rx'ed */
76	int	encaps;		/* BR2684_ENCAPS_* */
77	int	has_vpiid;	/* 1: use vpn_id - Unsupported */
78	__u8	vpn_id[7];
79	int	send_padding;	/* unsupported */
80	int	min_size;	/* we will pad smaller packets than this */
81};
82
83/*
84 * The BR2684_SETFILT ioctl is an experimental mechanism for folks
85 * terminating a large number of IP-only vcc's.  When netfilter allows
86 * efficient per-if in/out filters, this support will be removed
87 */
88struct br2684_filter {
89	__be32	prefix;		/* network byte order */
90	__be32	netmask;	/* 0 = disable filter */
91};
92
93struct br2684_filter_set {
94	struct br2684_if_spec ifspec;
95	struct br2684_filter filter;
96};
97
98#define BR2684_SETFILT	_IOW( 'a', ATMIOC_BACKEND + 0, \
99				struct br2684_filter_set)
100
101#endif /* _LINUX_ATMBR2684_H */
102