rtnet_chrdev.h

/***
 *
 *  include/rtnet_chrdev.h
 *
 *  RTnet - real-time networking subsystem
 *  Copyright (C) 1999    Lineo, Inc
 *                1999,2002 David A. Schleef <ds@schleef.org>
 *                2002 Ulrich Marx <marx@fet.uni-hannover.de>
 *                2003,2004 Jan Kiszka <jan.kiszka@web.de>
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 */

#ifndef __RTNET_CHRDEV_H_
#define __RTNET_CHRDEV_H_

#include <rtdev.h>

#ifdef __KERNEL__

#include <linux/list.h>
#include <linux/init.h>
#include <linux/ioctl.h>
#include <linux/netdevice.h>
#include <linux/types.h>

/* new extensible interface */
struct rtnet_ioctls {
        /* internal usage only */
        struct list_head entry;
        atomic_t ref_count;

        /* provider specification */
        const char *service_name;
        unsigned int ioctl_type;
        int (*handler)(struct rtnet_device *rtdev, unsigned int request,
                       unsigned long arg);
};

extern int rtnet_register_ioctls(struct rtnet_ioctls *ioctls);
extern void rtnet_unregister_ioctls(struct rtnet_ioctls *ioctls);

extern int __init rtnet_chrdev_init(void);
extern void rtnet_chrdev_release(void);

#else /* ifndef __KERNEL__ */

#include <net/if.h> /* IFNAMSIZ */
#include <linux/types.h>

#endif /* __KERNEL__ */

#define RTNET_MINOR 240 /* user interface for /dev/rtnet */
#define DEV_ADDR_LEN 32 /* avoids inconsistent MAX_ADDR_LEN */

struct rtnet_ioctl_head {
        char if_name[IFNAMSIZ];
};

struct rtnet_core_cmd {
        struct rtnet_ioctl_head head;

        union {
                /*** rtifconfig **/
                struct {
                        __u32 ip_addr;
                        __u32 broadcast_ip;
                        __u32 set_dev_flags;
                        __u32 clear_dev_flags;
                        __u32 dev_addr_type;
                        __u32 __padding;
                        __u8 dev_addr[DEV_ADDR_LEN];
                } up;

                struct {
                        __u32 ifindex;
                        __u32 type;
                        __u32 ip_addr;
                        __u32 broadcast_ip;
                        __u32 mtu;
                        __u32 flags;
                        __u8 dev_addr[DEV_ADDR_LEN];
                } info;

                __u64 __padding[8];
        } args;
};

#define RTNET_IOC_NODEV_PARAM 0x80

#define RTNET_IOC_TYPE_CORE 0
#define RTNET_IOC_TYPE_RTCFG 1
#define RTNET_IOC_TYPE_IPV4 2
#define RTNET_IOC_TYPE_RTMAC_NOMAC 100
#define RTNET_IOC_TYPE_RTMAC_TDMA 110

#define IOC_RT_IFUP _IOW(RTNET_IOC_TYPE_CORE, 0, struct rtnet_core_cmd)
#define IOC_RT_IFDOWN _IOW(RTNET_IOC_TYPE_CORE, 1, struct rtnet_core_cmd)
#define IOC_RT_IFINFO                                                          \
        _IOWR(RTNET_IOC_TYPE_CORE, 2 | RTNET_IOC_NODEV_PARAM,                  \
              struct rtnet_core_cmd)

#endif /* __RTNET_CHRDEV_H_ */