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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 /* used only at device creation: */
18#define BR2684_FLAG_ROUTED (1<<16) /* payload is routed, not bridged */
19
20/*
21 * Is there FCS inbound on this VC? This currently isn't supported.
22 */
23#define BR2684_FCSIN_NO (0)
24#define BR2684_FCSIN_IGNORE (1)
25#define BR2684_FCSIN_VERIFY (2)
26
27/*
28 * Is there FCS outbound on this VC? This currently isn't supported.
29 */
30#define BR2684_FCSOUT_NO (0)
31#define BR2684_FCSOUT_SENDZERO (1)
32#define BR2684_FCSOUT_GENERATE (2)
33
34/*
35 * Does this VC include LLC encapsulation?
36 */
37#define BR2684_ENCAPS_VC (0) /* VC-mux */
38#define BR2684_ENCAPS_LLC (1)
39#define BR2684_ENCAPS_AUTODETECT (2) /* Unsuported */
40
41/*
42 * Is this VC bridged or routed?
43 */
44
45#define BR2684_PAYLOAD_ROUTED (0)
46#define BR2684_PAYLOAD_BRIDGED (1)
47
48/*
49 * This is for the ATM_NEWBACKENDIF call - these are like socket families:
50 * the first element of the structure is the backend number and the rest
51 * is per-backend specific
52 */
53struct atm_newif_br2684 {
54 atm_backend_t backend_num; /* ATM_BACKEND_BR2684 */
55 int media; /* BR2684_MEDIA_*, flags in upper bits */
56 char ifname[IFNAMSIZ];
57 int mtu;
58};
59
60/*
61 * This structure is used to specify a br2684 interface - either by a
62 * positive integer (returned by ATM_NEWBACKENDIF) or the interfaces name
63 */
64#define BR2684_FIND_BYNOTHING (0)
65#define BR2684_FIND_BYNUM (1)
66#define BR2684_FIND_BYIFNAME (2)
67struct br2684_if_spec {
68 int method; /* BR2684_FIND_* */
69 union {
70 char ifname[IFNAMSIZ];
71 int devnum;
72 } spec;
73};
74
75/*
76 * This is for the ATM_SETBACKEND call - these are like socket families:
77 * the first element of the structure is the backend number and the rest
78 * is per-backend specific
79 */
80struct atm_backend_br2684 {
81 atm_backend_t backend_num; /* ATM_BACKEND_BR2684 */
82 struct br2684_if_spec ifspec;
83 int fcs_in; /* BR2684_FCSIN_* */
84 int fcs_out; /* BR2684_FCSOUT_* */
85 int fcs_auto; /* 1: fcs_{in,out} disabled if no FCS rx'ed */
86 int encaps; /* BR2684_ENCAPS_* */
87 int has_vpiid; /* 1: use vpn_id - Unsupported */
88 __u8 vpn_id[7];
89 int send_padding; /* unsupported */
90 int min_size; /* we will pad smaller packets than this */
91};
92
93/*
94 * The BR2684_SETFILT ioctl is an experimental mechanism for folks
95 * terminating a large number of IP-only vcc's. When netfilter allows
96 * efficient per-if in/out filters, this support will be removed
97 */
98struct br2684_filter {
99 __be32 prefix; /* network byte order */
100 __be32 netmask; /* 0 = disable filter */
101};
102
103struct br2684_filter_set {
104 struct br2684_if_spec ifspec;
105 struct br2684_filter filter;
106};
107
108enum br2684_payload {
109 p_routed = BR2684_PAYLOAD_ROUTED,
110 p_bridged = BR2684_PAYLOAD_BRIDGED,
111};
112
113#define BR2684_SETFILT _IOW( 'a', ATMIOC_BACKEND + 0, \
114 struct br2684_filter_set)
115
116#endif /* _LINUX_ATMBR2684_H */