FreeBSD/Linux Kernel Cross Reference
sys/dev/ipmi/ipmi_linux.c

     /*-
      * Copyright (c) 2009 IronPort Systems Inc. <ambrisko@ironport.com>
      * All rights reserved.
      *
      * Redistribution and use in source and binary forms, with or without
      * modification, are permitted provided that the following conditions
      * are met:
      * 1. Redistributions of source code must retain the above copyright
      *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     * SUCH DAMAGE.
     */
    
    #include <sys/cdefs.h>
    __FBSDID("$FreeBSD: releng/9.0/sys/dev/ipmi/ipmi_linux.c 224778 2011-08-11 12:30:23Z rwatson $");
    
    /*
     * Linux ioctl handler for the ipmi device driver
     */
    
    #include <sys/param.h>
    #include <sys/systm.h>
    #include <sys/capability.h>
    #include <sys/conf.h>
    #include <sys/kernel.h>
    #include <sys/module.h>
    #include <sys/file.h>
    #include <sys/proc.h>
    #ifdef __amd64__
    #include <machine/../linux32/linux.h>
    #include <machine/../linux32/linux32_proto.h>
    #else
    #include <machine/../linux/linux.h>
    #include <machine/../linux/linux_proto.h>
    #endif
    #include <compat/linux/linux_ioctl.h>
    #include <sys/ioccom.h>
    #include <sys/ipmi.h>
    
    /* There are multiple ioctl number ranges that need to be handled */
    #define IPMI_LINUX_IOCTL_MIN  0x690b
    #define IPMI_LINUX_IOCTL_MAX  0x6915
    
    /* Linux versions of ioctl's */
    #define L_IPMICTL_RECEIVE_MSG_TRUNC       _IOWR(IPMI_IOC_MAGIC, 11, struct ipmi_recv)
    #define L_IPMICTL_RECEIVE_MSG             _IOWR(IPMI_IOC_MAGIC, 12, struct ipmi_recv)
    #define L_IPMICTL_SEND_COMMAND            _IOW(IPMI_IOC_MAGIC, 13, struct ipmi_req)
    #define L_IPMICTL_REGISTER_FOR_CMD        _IOW(IPMI_IOC_MAGIC, 14, struct ipmi_cmdspec)
    #define L_IPMICTL_UNREGISTER_FOR_CMD      _IOW(IPMI_IOC_MAGIC, 15, struct ipmi_cmdspec)
    #define L_IPMICTL_SET_GETS_EVENTS_CMD     _IOW(IPMI_IOC_MAGIC, 16, int)
    #define L_IPMICTL_SET_MY_ADDRESS_CMD      _IOW(IPMI_IOC_MAGIC, 17, unsigned int)
    #define L_IPMICTL_GET_MY_ADDRESS_CMD      _IOW(IPMI_IOC_MAGIC, 18, unsigned int)
    #define L_IPMICTL_SET_MY_LUN_CMD          _IOW(IPMI_IOC_MAGIC, 19, unsigned int)
    #define L_IPMICTL_GET_MY_LUN_CMD          _IOW(IPMI_IOC_MAGIC, 20, unsigned int)
    
    static linux_ioctl_function_t ipmi_linux_ioctl;
    static struct linux_ioctl_handler ipmi_linux_handler = {ipmi_linux_ioctl,
                                                           IPMI_LINUX_IOCTL_MIN,
                                                           IPMI_LINUX_IOCTL_MAX};
    
    SYSINIT  (ipmi_linux_register,   SI_SUB_KLD, SI_ORDER_MIDDLE,
              linux_ioctl_register_handler, &ipmi_linux_handler);
    SYSUNINIT(ipmi_linux_unregister, SI_SUB_KLD, SI_ORDER_MIDDLE,
              linux_ioctl_unregister_handler, &ipmi_linux_handler);
    
    static int
    ipmi_linux_modevent(module_t mod, int type, void *data)
    {
            /* Do we care about any specific load/unload actions? */
            return (0);
    }
    
    DEV_MODULE(ipmi_linux, ipmi_linux_modevent, NULL);
    MODULE_DEPEND(ipmi_linux, linux, 1, 1, 1);
    
    static int
    ipmi_linux_ioctl(struct thread *td, struct linux_ioctl_args *args)
    {
            struct file *fp;
            u_long cmd;
            int error;
    
            if ((error = fget(td, args->fd, CAP_IOCTL, &fp)) != 0)
                    return (error);
            cmd = args->cmd;
    
           switch(cmd) {
           case L_IPMICTL_GET_MY_ADDRESS_CMD:
                   cmd = IPMICTL_GET_MY_ADDRESS_CMD;
                   break;
           case L_IPMICTL_GET_MY_LUN_CMD:
                   cmd = IPMICTL_GET_MY_LUN_CMD;
                   break;
           }
           /*
            * Pass the ioctl off to our standard handler.
            */
           error = (fo_ioctl(fp, cmd, (caddr_t)args->arg, td->td_ucred, td));
           fdrop(fp, td);
           return (error);
   }

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