/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */

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/* atmarp.h - ATM ARP protocol and kernel-demon interface definitions */

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/* Written 1995-1999 by Werner Almesberger, EPFL LRC/ICA */

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#ifndef _LINUX_ATMARP_H

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#define _LINUX_ATMARP_H

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#include <linux/types.h>

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#include <linux/atmapi.h>

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#include <linux/atmioc.h>

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#define ATMARP_RETRY_DELAY 30 /* request next resolution or forget

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NAK after 30 sec - should go into

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atmclip.h */

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#define ATMARP_MAX_UNRES_PACKETS 5 /* queue that many packets while

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waiting for the resolver */

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#define ATMARPD_CTRL _IO('a',ATMIOC_CLIP+1) /* become atmarpd ctrl sock */

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#define ATMARP_MKIP _IO('a',ATMIOC_CLIP+2) /* attach socket to IP */

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#define ATMARP_SETENTRY _IO('a',ATMIOC_CLIP+3) /* fill or hide ARP entry */

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#define ATMARP_ENCAP _IO('a',ATMIOC_CLIP+5) /* change encapsulation */

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enum atmarp_ctrl_type {

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act_invalid, /* catch uninitialized structures */

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act_need, /* need address resolution */

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act_up, /* interface is coming up */

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act_down, /* interface is going down */

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act_change /* interface configuration has changed */

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};

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struct atmarp_ctrl {

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enum atmarp_ctrl_type type; /* message type */

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int itf_num;/* interface number (if present) */

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__be32 ip; /* IP address (act_need only) */

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};

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#endif

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