ef16d2e450
and multimedia/linux_dvbwrapper : CA_GET_SLOT_INFO and CA_GET_MSG need to be _IOWR not _IOR. - Bump PORTREVISION for multimedia/vdr too since it uses one of the ioctls. (This fixes the CI slot of at last the TT CT-3650 DVB-C/T tuner.) Approved by: hselasky (maintainer of multimedia/webcamd)
348 lines
9.4 KiB
C
348 lines
9.4 KiB
C
/*-
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* Copyright (c) 2011 Juergen Lock
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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: /tmp/pcvs/ports/multimedia/linux_dvbwrapper-kmod/files/linux_dvbwrapper.c,v 1.3 2012-06-28 17:49:51 nox Exp $");
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#include <sys/param.h>
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#include <sys/systm.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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#include <sys/ioccom.h>
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#include <sys/sysproto.h>
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#include <sys/mman.h>
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#include <sys/resourcevar.h>
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#if __FreeBSD_version > 900040
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#include <sys/capability.h>
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#endif
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#include <vm/vm.h>
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#include <vm/pmap.h>
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#include <vm/vm_extern.h>
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#include <vm/vm_map.h>
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#ifdef COMPAT_LINUX32
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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 "linux_dvb_ioctl.h"
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#include "linux_dvb.h"
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#include "linux_dvb_compat.h"
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static linux_ioctl_function_t linux_ioctl_dvb;
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static struct linux_ioctl_handler dvb_handler =
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{ linux_ioctl_dvb, LINUX_IOCTL_DVB_MIN, LINUX_IOCTL_DVB_MAX };
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SYSINIT (dvbwrapper_register, SI_SUB_KLD, SI_ORDER_MIDDLE,
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linux_ioctl_register_handler, &dvb_handler);
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SYSUNINIT(dvbwrapper_unregister, SI_SUB_KLD, SI_ORDER_MIDDLE,
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linux_ioctl_unregister_handler, &dvb_handler);
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static MALLOC_DEFINE(M_LINUX_DVB, "linux_dvbwrapper", "Linux DVB wrapper");
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static int
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linux_dvbwrapper_modevent(module_t mod, int cmd, void *data)
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{
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return (0);
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}
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DEV_MODULE(linux_dvbwrapper, linux_dvbwrapper_modevent, NULL);
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MODULE_DEPEND(linux_dvbwrapper, linux, 1, 1, 1);
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#if ((__FreeBSD_version >= 900000) && (__FreeBSD_version < 900035)) || \
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(__FreeBSD_version < 802503)
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/*
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* Map some anonymous memory in user space of size sz, rounded up to the page
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* boundary.
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*/
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int
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copyout_map(struct thread *td, vm_offset_t *addr, size_t sz)
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{
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struct vmspace *vms;
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int error;
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vm_size_t size;
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vms = td->td_proc->p_vmspace;
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/*
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* Map somewhere after heap in process memory.
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*/
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PROC_LOCK(td->td_proc);
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*addr = round_page((vm_offset_t)vms->vm_daddr +
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lim_max(td->td_proc, RLIMIT_DATA));
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PROC_UNLOCK(td->td_proc);
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/* round size up to page boundry */
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size = (vm_size_t)round_page(sz);
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error = vm_mmap(&vms->vm_map, addr, size, PROT_READ | PROT_WRITE,
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VM_PROT_ALL, MAP_PRIVATE | MAP_ANON, OBJT_DEFAULT, NULL, 0);
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return (error);
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}
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/*
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* Unmap memory in user space.
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*/
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int
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copyout_unmap(struct thread *td, vm_offset_t addr, size_t sz)
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{
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vm_map_t map;
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vm_size_t size;
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if (sz == 0)
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return (0);
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map = &td->td_proc->p_vmspace->vm_map;
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size = (vm_size_t)round_page(sz);
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if (vm_map_remove(map, addr, addr + size) != KERN_SUCCESS)
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return (EINVAL);
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return (0);
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}
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#endif
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static int
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linux_to_bsd_dtv_properties(struct l_dtv_properties *lvps, struct dtv_properties *vps)
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{
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vps->num = lvps->num;
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vps->props = PTRIN(lvps->props); /* possible pointer size conversion */
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return (0);
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}
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static int
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linux_to_bsd_dtv_property(struct l_dtv_property *lvp, struct dtv_property *vp)
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{
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/*
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* Everything until u.buffer.reserved2 is fixed size so
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* just memcpy it.
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*/
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memcpy(vp, lvp, offsetof(struct l_dtv_property, u.buffer.reserved2));
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/*
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* The pointer may be garbage since it's part of a union,
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* currently no Linux code uses it so just set it to NULL.
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*/
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vp->u.buffer.reserved2 = NULL;
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vp->result = lvp->result;
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return (0);
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}
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static int
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bsd_to_linux_dtv_property(struct dtv_property *vp, struct l_dtv_property *lvp)
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{
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/*
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* Everything until u.buffer.reserved2 is fixed size so
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* just memcpy it.
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*/
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memcpy(lvp, vp, offsetof(struct l_dtv_property, u.buffer.reserved2));
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/*
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* The pointer may be garbage since it's part of a union,
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* currently no Linux code uses it so just set it to NULL.
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*/
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lvp->u.buffer.reserved2 = PTROUT(NULL);
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lvp->result = vp->result;
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return (0);
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}
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static int
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linux_ioctl_dvb(struct thread *td, struct linux_ioctl_args *args)
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{
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struct file *fp;
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int error, i;
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struct l_dtv_properties l_vps;
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struct dtv_properties vps;
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struct l_dtv_property *l_vp, *l_p;
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struct dtv_property *vp, *p;
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size_t l_propsiz, propsiz;
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vm_offset_t uvp;
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l_vp = NULL;
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vp = NULL;
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switch (args->cmd & 0xffff) {
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case LINUX_AUDIO_STOP:
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case LINUX_AUDIO_PLAY:
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case LINUX_AUDIO_PAUSE:
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case LINUX_AUDIO_CONTINUE:
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case LINUX_AUDIO_SELECT_SOURCE:
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case LINUX_AUDIO_SET_MUTE:
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case LINUX_AUDIO_SET_AV_SYNC:
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case LINUX_AUDIO_SET_BYPASS_MODE:
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case LINUX_AUDIO_CHANNEL_SELECT:
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case LINUX_AUDIO_CLEAR_BUFFER:
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case LINUX_AUDIO_SET_ID:
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case LINUX_AUDIO_SET_STREAMTYPE:
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case LINUX_AUDIO_SET_EXT_ID:
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case LINUX_AUDIO_BILINGUAL_CHANNEL_SELECT:
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case LINUX_DMX_START:
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case LINUX_DMX_STOP:
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case LINUX_DMX_SET_BUFFER_SIZE:
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case LINUX_NET_REMOVE_IF:
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case LINUX_FE_DISEQC_RESET_OVERLOAD:
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case LINUX_FE_DISEQC_SEND_BURST:
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case LINUX_FE_SET_TONE:
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case LINUX_FE_SET_VOLTAGE:
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case LINUX_FE_ENABLE_HIGH_LNB_VOLTAGE:
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case LINUX_FE_DISHNETWORK_SEND_LEGACY_CMD:
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case LINUX_FE_SET_FRONTEND_TUNE_MODE:
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case LINUX_CA_RESET:
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if ((args->cmd & IOC_DIRMASK) != LINUX_IOC_VOID)
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return ENOIOCTL;
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args->cmd = (args->cmd & 0xffff) | IOC_VOID;
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break;
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case LINUX_DMX_REMOVE_PID:
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/* overlaps with LINUX_NET_ADD_IF */
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if ((args->cmd & IOC_DIRMASK) == LINUX_IOC_INOUT)
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goto net_add_if;
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/* FALLTHRU */
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case LINUX_AUDIO_SET_MIXER:
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case LINUX_AUDIO_SET_ATTRIBUTES:
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case LINUX_AUDIO_SET_KARAOKE:
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case LINUX_DMX_SET_FILTER:
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case LINUX_DMX_SET_PES_FILTER:
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case LINUX_DMX_SET_SOURCE:
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case LINUX_DMX_ADD_PID:
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case LINUX_FE_DISEQC_SEND_MASTER_CMD:
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case LINUX_FE_SET_FRONTEND:
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case LINUX_CA_SEND_MSG:
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case LINUX_CA_SET_DESCR:
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case LINUX_CA_SET_PID:
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args->cmd = (args->cmd & ~IOC_DIRMASK) | IOC_IN;
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break;
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case LINUX_AUDIO_GET_STATUS:
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case LINUX_AUDIO_GET_CAPABILITIES:
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case LINUX_AUDIO_GET_PTS:
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case LINUX_DMX_GET_PES_PIDS:
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case LINUX_DMX_GET_CAPS:
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case LINUX_FE_GET_INFO:
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case LINUX_FE_DISEQC_RECV_SLAVE_REPLY:
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case LINUX_FE_READ_STATUS:
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case LINUX_FE_READ_BER:
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case LINUX_FE_READ_SIGNAL_STRENGTH:
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case LINUX_FE_READ_SNR:
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case LINUX_FE_READ_UNCORRECTED_BLOCKS:
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case LINUX_FE_GET_FRONTEND:
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case LINUX_FE_GET_EVENT:
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case LINUX_CA_GET_CAP:
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case LINUX_CA_GET_DESCR_INFO:
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args->cmd = (args->cmd & ~IOC_DIRMASK) | IOC_OUT;
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break;
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case LINUX_DMX_GET_STC:
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case LINUX_CA_GET_SLOT_INFO:
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case LINUX_CA_GET_MSG:
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case LINUX_NET_GET_IF:
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net_add_if:
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args->cmd = (args->cmd & ~IOC_DIRMASK) | IOC_INOUT;
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break;
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case LINUX_FE_SET_PROPERTY:
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case LINUX_FE_GET_PROPERTY:
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error = copyin((void *)args->arg, &l_vps, sizeof(l_vps));
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if (error)
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return (error);
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linux_to_bsd_dtv_properties(&l_vps, &vps);
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if ((vps.num == 0) || vps.num > DTV_IOCTL_MAX_MSGS)
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return EINVAL;
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l_propsiz = vps.num * sizeof(*l_vp);
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propsiz = vps.num * sizeof(*vp);
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l_vp = malloc(l_propsiz, M_LINUX_DVB, M_WAITOK);
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vp = malloc(propsiz, M_LINUX_DVB, M_WAITOK);
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error = copyin((void *)vps.props, l_vp, l_propsiz);
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if (error)
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goto out2;
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for (i = vps.num, l_p = l_vp, p = vp; i--; ++l_p, ++p)
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linux_to_bsd_dtv_property(l_p, p);
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error = copyout_map(td, &uvp, propsiz);
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if (error)
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goto out2;
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copyout(vp, (void *)uvp, propsiz);
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#if __FreeBSD_version > 900040
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if ((error = fget(td, args->fd, CAP_IOCTL, &fp)) != 0)
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#else
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if ((error = fget(td, args->fd, &fp)) != 0)
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#endif
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{
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(void)copyout_unmap(td, uvp, propsiz);
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goto out2;
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}
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vps.props = (void *)uvp;
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if ((args->cmd & 0xffff) == LINUX_FE_SET_PROPERTY)
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error = fo_ioctl(fp, FE_SET_PROPERTY, &vps, td->td_ucred, td);
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else
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error = fo_ioctl(fp, FE_GET_PROPERTY, &vps, td->td_ucred, td);
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if (error) {
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(void)copyout_unmap(td, uvp, propsiz);
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goto out;
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}
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error = copyin((void *)uvp, vp, propsiz);
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(void)copyout_unmap(td, uvp, propsiz);
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if (error)
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goto out;
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for (i = vps.num, l_p = l_vp, p = vp; i--; ++l_p, ++p)
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bsd_to_linux_dtv_property(p, l_p);
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linux_to_bsd_dtv_properties(&l_vps, &vps);
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copyout(l_vp, (void *)vps.props, l_propsiz);
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out:
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fdrop(fp, td);
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out2:
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if (l_vp)
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free(l_vp, M_LINUX_DVB);
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if (vp)
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free(vp, M_LINUX_DVB);
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return (error);
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default: return (ENOIOCTL);
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}
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/* actually r225618 but __FreeBSD_version wasn't bumped */
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#if __FreeBSD_version > 900043
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error = sys_ioctl(td, (struct ioctl_args *)args);
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#else
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error = ioctl(td, (struct ioctl_args *)args);
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#endif
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return (error);
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}
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