linux/include/linux/atmarp.h
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   1/* atmarp.h - ATM ARP protocol and kernel-demon interface definitions */
   2 
   3/* Written 1995-1999 by Werner Almesberger, EPFL LRC/ICA */
   4 
   5
   6#ifndef _LINUX_ATMARP_H
   7#define _LINUX_ATMARP_H
   8
   9#include <linux/types.h>
  10#include <linux/atmapi.h>
  11#include <linux/atmioc.h>
  12
  13
  14#define ATMARP_RETRY_DELAY 30           /* request next resolution or forget
  15                                           NAK after 30 sec - should go into
  16                                           atmclip.h */
  17#define ATMARP_MAX_UNRES_PACKETS 5      /* queue that many packets while
  18                                           waiting for the resolver */
  19
  20
  21#define ATMARPD_CTRL    _IO('a',ATMIOC_CLIP+1)  /* become atmarpd ctrl sock */
  22#define ATMARP_MKIP     _IO('a',ATMIOC_CLIP+2)  /* attach socket to IP */
  23#define ATMARP_SETENTRY _IO('a',ATMIOC_CLIP+3)  /* fill or hide ARP entry */
  24#define ATMARP_ENCAP    _IO('a',ATMIOC_CLIP+5)  /* change encapsulation */
  25
  26
  27enum atmarp_ctrl_type {
  28        act_invalid,            /* catch uninitialized structures */
  29        act_need,               /* need address resolution */
  30        act_up,                 /* interface is coming up */
  31        act_down,               /* interface is going down */
  32        act_change              /* interface configuration has changed */
  33};
  34
  35struct atmarp_ctrl {
  36        enum atmarp_ctrl_type   type;   /* message type */
  37        int                     itf_num;/* interface number (if present) */
  38        __be32                  ip;     /* IP address (act_need only) */
  39};
  40
  41#endif
  42
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