141 lines
4.8 KiB
C
141 lines
4.8 KiB
C
/*
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* Copyright (c) 2015, AVAGO Tech. All rights reserved. Author: Kashyap Desai,
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* Copyright (c) 2014, LSI Corp. All rights reserved. Author: Kashyap Desai,
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* Sibananda Sahu Support: freebsdraid@avagotech.com
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer. 2. Redistributions
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* in binary form must reproduce the above copyright notice, this list of
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* conditions and the following disclaimer in the documentation and/or other
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* materials provided with the distribution. 3. Neither the name of the
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* <ORGANIZATION> nor the names of its contributors may be used to endorse or
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* promote products derived from this software without specific prior written
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* permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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* The views and conclusions contained in the software and documentation are
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* those of the authors and should not be interpreted as representing
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* official policies,either expressed or implied, of the FreeBSD Project.
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*
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* Send feedback to: <megaraidfbsd@avagotech.com> Mail to: AVAGO TECHNOLOGIES, 1621
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* Barber Lane, Milpitas, CA 95035 ATTN: MegaRaid FreeBSD
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*
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/systm.h>
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#if (__FreeBSD_version >= 1001511)
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#include <sys/capsicum.h>
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#elif (__FreeBSD_version > 900000)
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#include <sys/capability.h>
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#endif
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#include <sys/conf.h>
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#include <sys/kernel.h>
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#include <sys/module.h>
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#include <sys/file.h>
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#include <sys/proc.h>
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#include <machine/bus.h>
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#if defined(__amd64__) /* Assume amd64 wants 32 bit Linux */
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#include <machine/../linux32/linux.h>
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#include <machine/../linux32/linux32_proto.h>
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#else
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#include <machine/../linux/linux.h>
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#include <machine/../linux/linux_proto.h>
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#endif
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#include <compat/linux/linux_ioctl.h>
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#include <compat/linux/linux_util.h>
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#include <dev/mrsas/mrsas.h>
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#include <dev/mrsas/mrsas_ioctl.h>
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/* There are multiple ioctl number ranges that need to be handled */
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#define MRSAS_LINUX_IOCTL_MIN 0x4d00
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#define MRSAS_LINUX_IOCTL_MAX 0x4d01
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static linux_ioctl_function_t mrsas_linux_ioctl;
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static struct linux_ioctl_handler mrsas_linux_handler = {mrsas_linux_ioctl,
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MRSAS_LINUX_IOCTL_MIN,
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MRSAS_LINUX_IOCTL_MAX};
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SYSINIT(mrsas_register, SI_SUB_KLD, SI_ORDER_MIDDLE,
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linux_ioctl_register_handler, &mrsas_linux_handler);
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SYSUNINIT(mrsas_unregister, SI_SUB_KLD, SI_ORDER_MIDDLE,
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linux_ioctl_unregister_handler, &mrsas_linux_handler);
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static struct linux_device_handler mrsas_device_handler =
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{"mrsas", "megaraid_sas", "mrsas0", "megaraid_sas_ioctl_node", -1, 0, 1};
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SYSINIT(mrsas_register2, SI_SUB_KLD, SI_ORDER_MIDDLE,
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linux_device_register_handler, &mrsas_device_handler);
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SYSUNINIT(mrsas_unregister2, SI_SUB_KLD, SI_ORDER_MIDDLE,
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linux_device_unregister_handler, &mrsas_device_handler);
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static int
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mrsas_linux_modevent(module_t mod __unused, int cmd __unused, void *data __unused)
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{
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return (0);
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}
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/*
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* mrsas_linux_ioctl: linux emulator IOCtl commands entry point.
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*
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* This function is the entry point for IOCtls from linux binaries.
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* It calls the mrsas_ioctl function for processing
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* depending on the IOCTL command received.
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*/
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static int
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mrsas_linux_ioctl(struct thread *p, struct linux_ioctl_args *args)
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{
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#if (__FreeBSD_version >= 1000000)
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cap_rights_t rights;
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#endif
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struct file *fp;
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int error;
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u_long cmd = args->cmd;
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if (cmd != MRSAS_LINUX_CMD32) {
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error = ENOTSUP;
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goto END;
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}
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#if (__FreeBSD_version >= 1000000)
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error = fget(p, args->fd, cap_rights_init(&rights, CAP_IOCTL), &fp);
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#elif (__FreeBSD_version <= 900000)
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error = fget(p, args->fd, &fp);
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#else /* For FreeBSD version greater than
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* 9.0.0 but less than 10.0.0 */
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error = fget(p, args->fd, CAP_IOCTL, &fp);
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#endif
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if (error != 0)
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goto END;
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error = fo_ioctl(fp, cmd, (caddr_t)args->arg, p->td_ucred, p);
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fdrop(fp, p);
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END:
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return (error);
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}
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DEV_MODULE(mrsas_linux, mrsas_linux_modevent, NULL);
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MODULE_DEPEND(mrsas, linux, 1, 1, 1);
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