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