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 /*
  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  */
  43 struct 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)
  57 struct 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  */
  70 struct 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  */
  88 struct br2684_filter {
  89         __u32   prefix;         /* network byte order */
  90         __u32   netmask;        /* 0 = disable filter */
  91 };
  92
  93 struct 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 */