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6f52b16c | 1 | /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
1da177e4 LT |
2 | #ifndef _LINUX_ATMBR2684_H |
3 | #define _LINUX_ATMBR2684_H | |
4 | ||
f757f603 | 5 | #include <linux/types.h> |
1da177e4 LT |
6 | #include <linux/atm.h> |
7 | #include <linux/if.h> /* For IFNAMSIZ */ | |
8 | ||
9 | /* | |
10 | * Type of media we're bridging (ethernet, token ring, etc) Currently only | |
11 | * ethernet is supported | |
12 | */ | |
13 | #define BR2684_MEDIA_ETHERNET (0) /* 802.3 */ | |
14 | #define BR2684_MEDIA_802_4 (1) /* 802.4 */ | |
15 | #define BR2684_MEDIA_TR (2) /* 802.5 - token ring */ | |
16 | #define BR2684_MEDIA_FDDI (3) | |
17 | #define BR2684_MEDIA_802_6 (4) /* 802.6 */ | |
18 | ||
097b19a9 | 19 | /* used only at device creation: */ |
fb64c735 | 20 | #define BR2684_FLAG_ROUTED (1<<16) /* payload is routed, not bridged */ |
097b19a9 | 21 | |
1da177e4 LT |
22 | /* |
23 | * Is there FCS inbound on this VC? This currently isn't supported. | |
24 | */ | |
25 | #define BR2684_FCSIN_NO (0) | |
26 | #define BR2684_FCSIN_IGNORE (1) | |
27 | #define BR2684_FCSIN_VERIFY (2) | |
28 | ||
29 | /* | |
30 | * Is there FCS outbound on this VC? This currently isn't supported. | |
31 | */ | |
32 | #define BR2684_FCSOUT_NO (0) | |
33 | #define BR2684_FCSOUT_SENDZERO (1) | |
34 | #define BR2684_FCSOUT_GENERATE (2) | |
35 | ||
36 | /* | |
37 | * Does this VC include LLC encapsulation? | |
38 | */ | |
39 | #define BR2684_ENCAPS_VC (0) /* VC-mux */ | |
40 | #define BR2684_ENCAPS_LLC (1) | |
41 | #define BR2684_ENCAPS_AUTODETECT (2) /* Unsuported */ | |
42 | ||
097b19a9 EK |
43 | /* |
44 | * Is this VC bridged or routed? | |
45 | */ | |
46 | ||
47 | #define BR2684_PAYLOAD_ROUTED (0) | |
48 | #define BR2684_PAYLOAD_BRIDGED (1) | |
49 | ||
1da177e4 LT |
50 | /* |
51 | * This is for the ATM_NEWBACKENDIF call - these are like socket families: | |
52 | * the first element of the structure is the backend number and the rest | |
53 | * is per-backend specific | |
54 | */ | |
55 | struct atm_newif_br2684 { | |
fb64c735 CW |
56 | atm_backend_t backend_num; /* ATM_BACKEND_BR2684 */ |
57 | int media; /* BR2684_MEDIA_*, flags in upper bits */ | |
58 | char ifname[IFNAMSIZ]; | |
59 | int mtu; | |
1da177e4 LT |
60 | }; |
61 | ||
62 | /* | |
63 | * This structure is used to specify a br2684 interface - either by a | |
64 | * positive integer (returned by ATM_NEWBACKENDIF) or the interfaces name | |
65 | */ | |
66 | #define BR2684_FIND_BYNOTHING (0) | |
67 | #define BR2684_FIND_BYNUM (1) | |
68 | #define BR2684_FIND_BYIFNAME (2) | |
69 | struct br2684_if_spec { | |
fb64c735 | 70 | int method; /* BR2684_FIND_* */ |
1da177e4 | 71 | union { |
fb64c735 CW |
72 | char ifname[IFNAMSIZ]; |
73 | int devnum; | |
1da177e4 LT |
74 | } spec; |
75 | }; | |
76 | ||
77 | /* | |
78 | * This is for the ATM_SETBACKEND call - these are like socket families: | |
79 | * the first element of the structure is the backend number and the rest | |
80 | * is per-backend specific | |
81 | */ | |
82 | struct atm_backend_br2684 { | |
fb64c735 | 83 | atm_backend_t backend_num; /* ATM_BACKEND_BR2684 */ |
1da177e4 | 84 | struct br2684_if_spec ifspec; |
fb64c735 CW |
85 | int fcs_in; /* BR2684_FCSIN_* */ |
86 | int fcs_out; /* BR2684_FCSOUT_* */ | |
87 | int fcs_auto; /* 1: fcs_{in,out} disabled if no FCS rx'ed */ | |
88 | int encaps; /* BR2684_ENCAPS_* */ | |
89 | int has_vpiid; /* 1: use vpn_id - Unsupported */ | |
90 | __u8 vpn_id[7]; | |
91 | int send_padding; /* unsupported */ | |
92 | int min_size; /* we will pad smaller packets than this */ | |
1da177e4 LT |
93 | }; |
94 | ||
95 | /* | |
96 | * The BR2684_SETFILT ioctl is an experimental mechanism for folks | |
97 | * terminating a large number of IP-only vcc's. When netfilter allows | |
98 | * efficient per-if in/out filters, this support will be removed | |
99 | */ | |
100 | struct br2684_filter { | |
fb64c735 CW |
101 | __be32 prefix; /* network byte order */ |
102 | __be32 netmask; /* 0 = disable filter */ | |
1da177e4 LT |
103 | }; |
104 | ||
105 | struct br2684_filter_set { | |
106 | struct br2684_if_spec ifspec; | |
107 | struct br2684_filter filter; | |
108 | }; | |
109 | ||
097b19a9 | 110 | enum br2684_payload { |
fb64c735 CW |
111 | p_routed = BR2684_PAYLOAD_ROUTED, |
112 | p_bridged = BR2684_PAYLOAD_BRIDGED, | |
097b19a9 EK |
113 | }; |
114 | ||
1da177e4 LT |
115 | #define BR2684_SETFILT _IOW( 'a', ATMIOC_BACKEND + 0, \ |
116 | struct br2684_filter_set) | |
117 | ||
118 | #endif /* _LINUX_ATMBR2684_H */ |