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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_H8#define _LINUX_ATMARP_H9 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 forget16 NAK after 30 sec - should go into17 atmclip.h */18#define ATMARP_MAX_UNRES_PACKETS 5 /* queue that many packets while19 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#endif43