548 lines
15 KiB
C
548 lines
15 KiB
C
/* $NetBSD: netbsd32_ioctl.c,v 1.38 2008/03/21 21:54:58 ad Exp $ */
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/*
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* Copyright (c) 1998, 2001 Matthew R. Green
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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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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* 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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/*
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* handle ioctl conversions from netbsd32 -> 64-bit kernel
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: netbsd32_ioctl.c,v 1.38 2008/03/21 21:54:58 ad Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/filedesc.h>
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#include <sys/ioctl.h>
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#include <sys/file.h>
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#include <sys/proc.h>
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#include <sys/socketvar.h>
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#include <sys/audioio.h>
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#include <sys/disklabel.h>
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#include <sys/dkio.h>
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#include <sys/malloc.h>
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#include <sys/sockio.h>
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#include <sys/socket.h>
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#include <sys/ttycom.h>
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#include <sys/mount.h>
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#include <sys/syscallargs.h>
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#include <sys/ktrace.h>
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#include <sys/kmem.h>
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#ifdef __sparc__
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#include <dev/sun/fbio.h>
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#include <machine/openpromio.h>
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#endif
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#include <net/if.h>
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#include <net/route.h>
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#include <netinet/in.h>
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#include <netinet/in_var.h>
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#include <netinet/igmp.h>
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#include <netinet/igmp_var.h>
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#include <netinet/ip_mroute.h>
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#include <compat/sys/sockio.h>
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#include <compat/netbsd32/netbsd32.h>
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#include <compat/netbsd32/netbsd32_ioctl.h>
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#include <compat/netbsd32/netbsd32_syscallargs.h>
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/* prototypes for the converters */
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static inline void netbsd32_to_partinfo(struct netbsd32_partinfo *,
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struct partinfo *, u_long);
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#if 0
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static inline void netbsd32_to_format_op(struct netbsd32_format_op *,
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struct format_op *, u_long);
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#endif
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static inline void netbsd32_to_ifreq(struct netbsd32_ifreq *, struct ifreq *,
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u_long cmd);
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static inline void netbsd32_to_ifconf(struct netbsd32_ifconf *,
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struct ifconf *, u_long);
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static inline void netbsd32_to_ifmediareq(struct netbsd32_ifmediareq *,
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struct ifmediareq *, u_long);
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static inline void netbsd32_to_ifdrv(struct netbsd32_ifdrv *, struct ifdrv *,
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u_long);
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static inline void netbsd32_to_sioc_vif_req(struct netbsd32_sioc_vif_req *,
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struct sioc_vif_req *, u_long);
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static inline void netbsd32_to_sioc_sg_req(struct netbsd32_sioc_sg_req *,
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struct sioc_sg_req *, u_long);
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static inline void netbsd32_from_partinfo(struct partinfo *,
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struct netbsd32_partinfo *, u_long);
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#if 0
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static inline void netbsd32_from_format_op(struct format_op *,
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struct netbsd32_format_op *,
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u_long);
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#endif
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static inline void netbsd32_from_ifreq(struct ifreq *,
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struct netbsd32_ifreq *, u_long);
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static inline void netbsd32_from_ifconf(struct ifconf *,
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struct netbsd32_ifconf *, u_long);
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static inline void netbsd32_from_ifmediareq(struct ifmediareq *,
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struct netbsd32_ifmediareq *,
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u_long);
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static inline void netbsd32_from_ifdrv(struct ifdrv *,
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struct netbsd32_ifdrv *, u_long);
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static inline void netbsd32_from_sioc_vif_req(struct sioc_vif_req *,
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struct netbsd32_sioc_vif_req *,
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u_long);
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static inline void netbsd32_from_sioc_sg_req(struct sioc_sg_req *,
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struct netbsd32_sioc_sg_req *,
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u_long);
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/* convert to/from different structures */
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static inline void
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netbsd32_to_partinfo(struct netbsd32_partinfo *s32p, struct partinfo *p, u_long cmd)
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{
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p->disklab = (struct disklabel *)NETBSD32PTR64(s32p->disklab);
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p->part = (struct partition *)NETBSD32PTR64(s32p->part);
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}
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#if 0
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static inline void
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netbsd32_to_format_op(struct netbsd32_format_op *s32p, struct format_op *p, u_long cmd)
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{
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p->df_buf = (char *)NETBSD32PTR64(s32p->df_buf);
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p->df_count = s32p->df_count;
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p->df_startblk = s32p->df_startblk;
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memcpy(p->df_reg, s32p->df_reg, sizeof(s32p->df_reg));
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}
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#endif
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static inline void
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netbsd32_to_ifreq(struct netbsd32_ifreq *s32p, struct ifreq *p, u_long cmd)
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{
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memcpy(p, s32p, sizeof *s32p);
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/*
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* XXX
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* struct ifreq says the same, but sometimes the ifr_data
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* union member needs to be converted to 64 bits... this
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* is very driver specific and so we ignore it for now..
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*/
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if (cmd == SIOCGIFDATA || cmd == SIOCZIFDATA)
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p->ifr_data = (void *)NETBSD32PTR64(s32p->ifr_data);
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}
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static inline void
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netbsd32_to_ifconf(struct netbsd32_ifconf *s32p, struct ifconf *p, u_long cmd)
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{
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p->ifc_len = s32p->ifc_len;
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/* ifc_buf & ifc_req are the same size so this works */
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p->ifc_buf = (void *)NETBSD32PTR64(s32p->ifc_buf);
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}
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static inline void
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netbsd32_to_ifmediareq(struct netbsd32_ifmediareq *s32p, struct ifmediareq *p, u_long cmd)
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{
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memcpy(p, s32p, sizeof *s32p);
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p->ifm_ulist = (int *)NETBSD32PTR64(s32p->ifm_ulist);
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}
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static inline void
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netbsd32_to_ifdrv(struct netbsd32_ifdrv *s32p, struct ifdrv *p, u_long cmd)
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{
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memcpy(p, s32p, sizeof *s32p);
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p->ifd_data = (void *)NETBSD32PTR64(s32p->ifd_data);
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}
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static inline void
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netbsd32_to_sioc_vif_req(struct netbsd32_sioc_vif_req *s32p, struct sioc_vif_req *p, u_long cmd)
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{
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p->vifi = s32p->vifi;
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p->icount = (u_long)s32p->icount;
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p->ocount = (u_long)s32p->ocount;
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p->ibytes = (u_long)s32p->ibytes;
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p->obytes = (u_long)s32p->obytes;
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}
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static inline void
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netbsd32_to_sioc_sg_req(struct netbsd32_sioc_sg_req *s32p, struct sioc_sg_req *p, u_long cmd)
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{
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p->src = s32p->src;
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p->grp = s32p->grp;
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p->pktcnt = (u_long)s32p->pktcnt;
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p->bytecnt = (u_long)s32p->bytecnt;
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p->wrong_if = (u_long)s32p->wrong_if;
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}
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/*
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* handle ioctl conversions from 64-bit kernel -> netbsd32
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*/
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static inline void
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netbsd32_from_partinfo(struct partinfo *p, struct netbsd32_partinfo *s32p, u_long cmd)
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{
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NETBSD32PTR32(s32p->disklab, p->disklab);
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NETBSD32PTR32(s32p->part, p->part);
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}
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#if 0
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static inline void
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netbsd32_from_format_op(struct format_op *p, struct netbsd32_format_op *s32p, u_long cmd)
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{
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/* filled in */
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#if 0
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s32p->df_buf = (netbsd32_charp)p->df_buf;
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#endif
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s32p->df_count = p->df_count;
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s32p->df_startblk = p->df_startblk;
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memcpy(s32p->df_reg, p->df_reg, sizeof(p->df_reg));
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}
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#endif
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static inline void
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netbsd32_from_ifreq(struct ifreq *p, struct netbsd32_ifreq *s32p, u_long cmd)
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{
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/*
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* XXX
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* struct ifreq says the same, but sometimes the ifr_data
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* union member needs to be converted to 64 bits... this
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* is very driver specific and so we ignore it for now..
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*/
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*s32p->ifr_name = *p->ifr_name;
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if (cmd == SIOCGIFDATA || cmd == SIOCZIFDATA)
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NETBSD32PTR32(s32p->ifr_data, p->ifr_data);
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}
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static inline void
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netbsd32_from_ifconf(struct ifconf *p, struct netbsd32_ifconf *s32p, u_long cmd)
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{
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s32p->ifc_len = p->ifc_len;
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/* ifc_buf & ifc_req are the same size so this works */
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NETBSD32PTR32(s32p->ifc_buf, p->ifc_buf);
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}
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static inline void
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netbsd32_from_ifmediareq(struct ifmediareq *p, struct netbsd32_ifmediareq *s32p, u_long cmd)
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{
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memcpy(s32p, p, sizeof *p);
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/* filled in? */
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#if 0
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s32p->ifm_ulist = (netbsd32_intp_t)p->ifm_ulist;
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#endif
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}
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static inline void
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netbsd32_from_ifdrv(struct ifdrv *p, struct netbsd32_ifdrv *s32p, u_long cmd)
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{
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memcpy(s32p, p, sizeof *p);
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/* filled in? */
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#if 0
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s32p->ifm_data = (netbsd32_u_longp_t)p->ifm_data;
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#endif
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}
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static inline void
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netbsd32_from_sioc_vif_req(struct sioc_vif_req *p, struct netbsd32_sioc_vif_req *s32p, u_long cmd)
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{
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s32p->vifi = p->vifi;
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s32p->icount = (netbsd32_u_long)p->icount;
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s32p->ocount = (netbsd32_u_long)p->ocount;
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s32p->ibytes = (netbsd32_u_long)p->ibytes;
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s32p->obytes = (netbsd32_u_long)p->obytes;
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}
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static inline void
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netbsd32_from_sioc_sg_req(struct sioc_sg_req *p, struct netbsd32_sioc_sg_req *s32p, u_long cmd)
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{
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s32p->src = p->src;
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s32p->grp = p->grp;
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s32p->pktcnt = (netbsd32_u_long)p->pktcnt;
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s32p->bytecnt = (netbsd32_u_long)p->bytecnt;
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s32p->wrong_if = (netbsd32_u_long)p->wrong_if;
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}
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/*
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* main ioctl syscall.
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*
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* ok, here we are in the biggy. we have to do fix ups depending
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* on the ioctl command before and afterwards.
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*/
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int
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netbsd32_ioctl(struct lwp *l, const struct netbsd32_ioctl_args *uap, register_t *retval)
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{
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/* {
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syscallarg(int) fd;
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syscallarg(netbsd32_u_long) com;
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syscallarg(netbsd32_voidp) data;
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} */
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struct proc *p = l->l_proc;
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struct file *fp;
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struct filedesc *fdp;
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u_long com;
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int error = 0;
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u_int size, size32;
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void *data, *memp = NULL;
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void *data32, *memp32 = NULL;
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unsigned fd;
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fdfile_t *ff;
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int tmp;
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#define STK_PARAMS 128
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u_long stkbuf[STK_PARAMS/sizeof(u_long)];
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u_long stkbuf32[STK_PARAMS/sizeof(u_long)];
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/*
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* we need to translate some commands (_IOW) before calling sys_ioctl,
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* some after (_IOR), and some both (_IOWR).
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*/
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#if 0
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{
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char *dirs[8] = { "NONE!", "VOID", "OUT", "VOID|OUT!", "IN", "VOID|IN!",
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"INOUT", "VOID|IN|OUT!" };
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printf("netbsd32_ioctl(%d, %x, %x): %s group %c base %d len %d\n",
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SCARG(uap, fd), SCARG(uap, com), SCARG(uap, data),
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dirs[((SCARG(uap, com) & IOC_DIRMASK)>>29)],
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IOCGROUP(SCARG(uap, com)), IOCBASECMD(SCARG(uap, com)),
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IOCPARM_LEN(SCARG(uap, com)));
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}
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#endif
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fdp = p->p_fd;
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fd = SCARG(uap, fd);
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if ((fp = fd_getfile(fd)) == NULL)
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return (EBADF);
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if ((fp->f_flag & (FREAD | FWRITE)) == 0) {
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error = EBADF;
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goto out;
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}
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ff = fdp->fd_ofiles[SCARG(uap, fd)];
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switch (com = SCARG(uap, com)) {
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case FIONCLEX:
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ff->ff_exclose = 0;
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goto out;
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case FIOCLEX:
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ff->ff_exclose = 1;
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fdp->fd_exclose = 1;
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goto out;
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}
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/*
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* Interpret high order word to find amount of data to be
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* copied to/from the user's address space.
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*/
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size = 0;
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size32 = IOCPARM_LEN(com);
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if (size32 > IOCPARM_MAX) {
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error = ENOTTY;
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goto out;
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}
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if (size32 > sizeof(stkbuf)) {
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memp32 = kmem_alloc((size_t)size32, KM_SLEEP);
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data32 = memp32;
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} else
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data32 = (void *)stkbuf32;
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if (com&IOC_IN) {
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if (size32) {
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error = copyin(SCARG_P32(uap, data), data32, size32);
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if (error) {
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if (memp32)
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kmem_free(memp32, (size_t)size32);
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goto out;
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}
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ktrgenio(fd, UIO_WRITE, SCARG_P32(uap, data),
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size32, 0);
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} else
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*(void **)data32 = SCARG_P32(uap, data);
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} else if ((com&IOC_OUT) && size32)
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/*
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* Zero the buffer so the user always
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* gets back something deterministic.
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*/
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memset(data32, 0, size32);
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else if (com&IOC_VOID)
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*(void **)data32 = SCARG_P32(uap, data);
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/*
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* convert various structures, pointers, and other objects that
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* change size from 32 bit -> 64 bit, for all ioctl commands.
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*/
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switch (SCARG(uap, com)) {
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case FIONBIO:
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mutex_enter(&fp->f_lock);
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if ((tmp = *(int *)data32) != 0)
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fp->f_flag |= FNONBLOCK;
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else
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fp->f_flag &= ~FNONBLOCK;
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mutex_exit(&fp->f_lock);
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error = (*fp->f_ops->fo_ioctl)(fp, FIONBIO, (void *)&tmp);
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break;
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case FIOASYNC:
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mutex_enter(&fp->f_lock);
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if ((tmp = *(int *)data32) != 0)
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fp->f_flag |= FASYNC;
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else
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fp->f_flag &= ~FASYNC;
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mutex_exit(&fp->f_lock);
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error = (*fp->f_ops->fo_ioctl)(fp, FIOASYNC, (void *)&tmp);
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break;
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case DIOCGPART32:
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IOCTL_STRUCT_CONV_TO(DIOCGPART, partinfo);
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#if 0 /* not implemented by anything */
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case DIOCRFORMAT32:
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IOCTL_STRUCT_CONV_TO(DIOCRFORMAT, format_op);
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case DIOCWFORMAT32:
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IOCTL_STRUCT_CONV_TO(DIOCWFORMAT, format_op);
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#endif
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/*
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* only a few ifreq syscalls need conversion and those are
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* all driver specific... XXX
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*/
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#if 0
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case SIOCGADDRROM3232:
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IOCTL_STRUCT_CONV_TO(SIOCGADDRROM32, ifreq);
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case SIOCGCHIPID32:
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IOCTL_STRUCT_CONV_TO(SIOCGCHIPID, ifreq);
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case SIOCSIFADDR32:
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IOCTL_STRUCT_CONV_TO(SIOCSIFADDR, ifreq);
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case OSIOCGIFADDR32:
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IOCTL_STRUCT_CONV_TO(OSIOCGIFADDR, ifreq);
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case SIOCGIFADDR32:
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IOCTL_STRUCT_CONV_TO(SIOCGIFADDR, ifreq);
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case SIOCSIFDSTADDR32:
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IOCTL_STRUCT_CONV_TO(SIOCSIFDSTADDR, ifreq);
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case OSIOCGIFDSTADDR32:
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IOCTL_STRUCT_CONV_TO(OSIOCGIFDSTADDR, ifreq);
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case SIOCGIFDSTADDR32:
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IOCTL_STRUCT_CONV_TO(SIOCGIFDSTADDR, ifreq);
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case OSIOCGIFBRDADDR32:
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IOCTL_STRUCT_CONV_TO(OSIOCGIFBRDADDR, ifreq);
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case SIOCGIFBRDADDR32:
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IOCTL_STRUCT_CONV_TO(SIOCGIFBRDADDR, ifreq);
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case SIOCSIFBRDADDR32:
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IOCTL_STRUCT_CONV_TO(SIOCSIFBRDADDR, ifreq);
|
|
case OSIOCGIFNETMASK32:
|
|
IOCTL_STRUCT_CONV_TO(OSIOCGIFNETMASK, ifreq);
|
|
case SIOCGIFNETMASK32:
|
|
IOCTL_STRUCT_CONV_TO(SIOCGIFNETMASK, ifreq);
|
|
case SIOCSIFNETMASK32:
|
|
IOCTL_STRUCT_CONV_TO(SIOCSIFNETMASK, ifreq);
|
|
case SIOCGIFMETRIC32:
|
|
IOCTL_STRUCT_CONV_TO(SIOCGIFMETRIC, ifreq);
|
|
case SIOCSIFMETRIC32:
|
|
IOCTL_STRUCT_CONV_TO(SIOCSIFMETRIC, ifreq);
|
|
case SIOCDIFADDR32:
|
|
IOCTL_STRUCT_CONV_TO(SIOCDIFADDR, ifreq);
|
|
case SIOCADDMULTI32:
|
|
IOCTL_STRUCT_CONV_TO(SIOCADDMULTI, ifreq);
|
|
case SIOCDELMULTI32:
|
|
IOCTL_STRUCT_CONV_TO(SIOCDELMULTI, ifreq);
|
|
case SIOCSIFMEDIA32:
|
|
IOCTL_STRUCT_CONV_TO(SIOCSIFMEDIA, ifreq);
|
|
case SIOCSIFMTU32:
|
|
IOCTL_STRUCT_CONV_TO(SIOCSIFMTU, ifreq);
|
|
case SIOCGIFMTU32:
|
|
IOCTL_STRUCT_CONV_TO(SIOCGIFMTU, ifreq);
|
|
case BIOCGETIF32:
|
|
IOCTL_STRUCT_CONV_TO(BIOCGETIF, ifreq);
|
|
case BIOCSETIF32:
|
|
IOCTL_STRUCT_CONV_TO(BIOCSETIF, ifreq);
|
|
case SIOCPHASE132:
|
|
IOCTL_STRUCT_CONV_TO(SIOCPHASE1, ifreq);
|
|
case SIOCPHASE232:
|
|
IOCTL_STRUCT_CONV_TO(SIOCPHASE2, ifreq);
|
|
#endif
|
|
|
|
case OSIOCGIFCONF32:
|
|
IOCTL_STRUCT_CONV_TO(OSIOCGIFCONF, ifconf);
|
|
case SIOCGIFCONF32:
|
|
IOCTL_STRUCT_CONV_TO(SIOCGIFCONF, ifconf);
|
|
|
|
case SIOCGIFFLAGS32:
|
|
IOCTL_STRUCT_CONV_TO(SIOCGIFFLAGS, ifreq);
|
|
case SIOCSIFFLAGS32:
|
|
IOCTL_STRUCT_CONV_TO(SIOCSIFFLAGS, ifreq);
|
|
|
|
case SIOCGIFMEDIA32:
|
|
IOCTL_STRUCT_CONV_TO(SIOCGIFMEDIA, ifmediareq);
|
|
|
|
case SIOCSDRVSPEC32:
|
|
IOCTL_STRUCT_CONV_TO(SIOCSDRVSPEC, ifdrv);
|
|
|
|
case SIOCGETVIFCNT32:
|
|
IOCTL_STRUCT_CONV_TO(SIOCGETVIFCNT, sioc_vif_req);
|
|
|
|
case SIOCGETSGCNT32:
|
|
IOCTL_STRUCT_CONV_TO(SIOCGETSGCNT, sioc_sg_req);
|
|
|
|
default:
|
|
#ifdef NETBSD32_MD_IOCTL
|
|
error = netbsd32_md_ioctl(fp, com, data32, l);
|
|
#else
|
|
error = (*fp->f_ops->fo_ioctl)(fp, com, data32);
|
|
#endif
|
|
break;
|
|
}
|
|
|
|
if (error == EPASSTHROUGH)
|
|
error = ENOTTY;
|
|
|
|
/*
|
|
* Copy any data to user, size was
|
|
* already set and checked above.
|
|
*/
|
|
if (error == 0 && (com&IOC_OUT) && size32) {
|
|
error = copyout(data32, SCARG_P32(uap, data), size32);
|
|
ktrgenio(fd, UIO_READ, SCARG_P32(uap, data),
|
|
size32, error);
|
|
}
|
|
|
|
/* if we malloced data, free it here */
|
|
if (memp32)
|
|
kmem_free(memp32, (size_t)size32);
|
|
if (memp)
|
|
kmem_free(memp, (size_t)size);
|
|
out:
|
|
fd_putfile(fd);
|
|
return (error);
|
|
}
|