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 28enum 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 36struct 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 43