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/* atmarp.h - ATM ARP protocol and kernel-demon interface definitions */
 
/* Written 1995-1999 by Werner Almesberger, EPFL LRC/ICA */
 

#ifndef _LINUX_ATMARP_H
#define _LINUX_ATMARP_H

#ifdef __KERNEL__
#include <linux/types.h>
#endif
#include <linux/atmapi.h>
#include <linux/atmioc.h>


#define ATMARP_RETRY_DELAY 30           /* request next resolution or forget
                                           NAK after 30 sec - should go into
                                           atmclip.h */
#define ATMARP_MAX_UNRES_PACKETS 5      /* queue that many packets while
                                           waiting for the resolver */


#define ATMARPD_CTRL    _IO('a',ATMIOC_CLIP+1)  /* become atmarpd ctrl sock */
#define ATMARP_MKIP     _IO('a',ATMIOC_CLIP+2)  /* attach socket to IP */
#define ATMARP_SETENTRY _IO('a',ATMIOC_CLIP+3)  /* fill or hide ARP entry */
#define ATMARP_ENCAP    _IO('a',ATMIOC_CLIP+5)  /* change encapsulation */


enum atmarp_ctrl_type {
        act_invalid,            /* catch uninitialized structures */
        act_need,               /* need address resolution */
        act_up,                 /* interface is coming up */
        act_down,               /* interface is going down */
        act_change              /* interface configuration has changed */
};

struct atmarp_ctrl {
        enum atmarp_ctrl_type   type;   /* message type */
        int                     itf_num;/* interface number (if present) */
        uint32_t                ip;     /* IP address (act_need only) */
};

#endif