include/linux/atmbr2684.h

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