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 */ 53 struct 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) 67 struct 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 */ 80 struct 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 */ 98 struct br2684_filter { 99 __be32 prefix; /* network byte order */ 100 __be32 netmask; /* 0 = disable filter */ 101 }; 102 103 struct br2684_filter_set { 104 struct br2684_if_spec ifspec; 105 struct br2684_filter filter; 106 }; 107 108 enum 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 */ 117