4a14441044
further refinement is required as some device drivers intended to be portable over FreeBSD versions rely on __FreeBSD_version to decide whether to include capability.h. MFC after: 3 weeks
95 lines
3.0 KiB
C
95 lines
3.0 KiB
C
/*-
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* Copyright (c) 2002 Scott Long
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* All rights reserved.
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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
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* 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 AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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/*
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* Linux ioctl handler for the aac device driver
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/capsicum.h>
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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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#ifdef __amd64__
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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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/* There are multiple ioctl number ranges that need to be handled */
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#define AAC_LINUX_IOCTL_MIN 0x0000
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#define AAC_LINUX_IOCTL_MAX 0x21ff
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static linux_ioctl_function_t aac_linux_ioctl;
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static struct linux_ioctl_handler aac_linux_handler = {aac_linux_ioctl,
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AAC_LINUX_IOCTL_MIN,
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AAC_LINUX_IOCTL_MAX};
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SYSINIT (aac_linux_register, SI_SUB_KLD, SI_ORDER_MIDDLE,
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linux_ioctl_register_handler, &aac_linux_handler);
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SYSUNINIT(aac_linux_unregister, SI_SUB_KLD, SI_ORDER_MIDDLE,
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linux_ioctl_unregister_handler, &aac_linux_handler);
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static int
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aac_linux_modevent(module_t mod, int type, void *data)
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{
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/* Do we care about any specific load/unload actions? */
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return (0);
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}
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DEV_MODULE(aac_linux, aac_linux_modevent, NULL);
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MODULE_DEPEND(aac_linux, linux, 1, 1, 1);
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static int
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aac_linux_ioctl(struct thread *td, struct linux_ioctl_args *args)
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{
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cap_rights_t rights;
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struct file *fp;
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u_long cmd;
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int error;
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error = fget(td, args->fd, cap_rights_init(&rights, CAP_IOCTL), &fp);
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if (error != 0)
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return (error);
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cmd = args->cmd;
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/*
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* Pass the ioctl off to our standard handler.
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*/
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error = (fo_ioctl(fp, cmd, (caddr_t)args->arg, td->td_ucred, td));
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fdrop(fp, td);
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return (error);
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}
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