include/uapi/linux/atmarp.h

   1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
   2 /* atmarp.h - ATM ARP protocol and kernel-demon interface definitions */
   3
   4 /* Written 1995-1999 by Werner Almesberger, EPFL LRC/ICA */
   5
   6
   7 #ifndef _LINUX_ATMARP_H
   8 #define _LINUX_ATMARP_H
   9
  10 #include <linux/types.h>
  11 #include <linux/atmapi.h>
  12 #include <linux/atmioc.h>
  13
  14
  15 #define ATMARP_RETRY_DELAY 30           /* request next resolution or forget
  16                                            NAK after 30 sec - should go into
  17                                            atmclip.h */
  18 #define ATMARP_MAX_UNRES_PACKETS 5      /* queue that many packets while
  19                                            waiting for the resolver */
  20
  21
  22 #define ATMARPD_CTRL    _IO('a',ATMIOC_CLIP+1)  /* become atmarpd ctrl sock */
  23 #define ATMARP_MKIP     _IO('a',ATMIOC_CLIP+2)  /* attach socket to IP */
  24 #define ATMARP_SETENTRY _IO('a',ATMIOC_CLIP+3)  /* fill or hide ARP entry */
  25 #define ATMARP_ENCAP    _IO('a',ATMIOC_CLIP+5)  /* change encapsulation */
  26
  27
  28 enum atmarp_ctrl_type {
  29         act_invalid,            /* catch uninitialized structures */
  30         act_need,               /* need address resolution */
  31         act_up,                 /* interface is coming up */
  32         act_down,               /* interface is going down */
  33         act_change              /* interface configuration has changed */
  34 };
  35
  36 struct atmarp_ctrl {
  37         enum atmarp_ctrl_type   type;   /* message type */
  38         int                     itf_num;/* interface number (if present) */
  39         __be32                  ip;     /* IP address (act_need only) */
  40 };
  41
  42 #endif