uapi/linux/atmarp.h

0001 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
0002 /* atmarp.h - ATM ARP protocol and kernel-demon interface definitions */
0003
0004 /* Written 1995-1999 by Werner Almesberger, EPFL LRC/ICA */
0005
0006
0007 #ifndef _LINUX_ATMARP_H
0008 #define _LINUX_ATMARP_H
0009
0010 #include <linux/types.h>
0011 #include <linux/atmapi.h>
0012 #include <linux/atmioc.h>
0013
0014
0015 #define ATMARP_RETRY_DELAY 30       /* request next resolution or forget
0016                        NAK after 30 sec - should go into
0017                        atmclip.h */
0018 #define ATMARP_MAX_UNRES_PACKETS 5  /* queue that many packets while
0019                        waiting for the resolver */
0020
0021
0022 #define ATMARPD_CTRL    _IO('a',ATMIOC_CLIP+1)  /* become atmarpd ctrl sock */
0023 #define ATMARP_MKIP _IO('a',ATMIOC_CLIP+2)  /* attach socket to IP */
0024 #define ATMARP_SETENTRY _IO('a',ATMIOC_CLIP+3)  /* fill or hide ARP entry */
0025 #define ATMARP_ENCAP    _IO('a',ATMIOC_CLIP+5)  /* change encapsulation */
0026
0027
0028 enum atmarp_ctrl_type {
0029     act_invalid,        /* catch uninitialized structures */
0030     act_need,       /* need address resolution */
0031     act_up,         /* interface is coming up */
0032     act_down,       /* interface is going down */
0033     act_change      /* interface configuration has changed */
0034 };
0035
0036 struct atmarp_ctrl {
0037     enum atmarp_ctrl_type   type;   /* message type */
0038     int         itf_num;/* interface number (if present) */
0039     __be32          ip; /* IP address (act_need only) */
0040 };
0041
0042 #endif