include/linux/atmbr2684.h

   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 */