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_ */