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NetBSD/sys/compat/netbsd32/netbsd32_fs.c

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/* $NetBSD: netbsd32_fs.c,v 1.58 2009/12/14 00:47:11 matt Exp $ */
/*
* Copyright (c) 1998, 2001 Matthew R. Green
* 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 ``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 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>
__KERNEL_RCSID(0, "$NetBSD: netbsd32_fs.c,v 1.58 2009/12/14 00:47:11 matt Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/malloc.h>
#include <sys/mount.h>
#include <sys/socket.h>
#include <sys/socketvar.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <sys/ktrace.h>
#include <sys/resourcevar.h>
#include <sys/vnode.h>
#include <sys/file.h>
#include <sys/filedesc.h>
#include <sys/namei.h>
#include <sys/statvfs.h>
#include <sys/syscallargs.h>
#include <sys/proc.h>
#include <sys/dirent.h>
#include <sys/kauth.h>
#include <sys/vfs_syscalls.h>
#include <fs/cd9660/cd9660_mount.h>
#include <ufs/ufs/ufsmount.h>
#include <compat/netbsd32/netbsd32.h>
#include <compat/netbsd32/netbsd32_syscallargs.h>
#include <compat/netbsd32/netbsd32_conv.h>
#include <compat/sys/mount.h>
static int dofilereadv32(int, struct file *, struct netbsd32_iovec *,
int, off_t *, int, register_t *);
static int dofilewritev32(int, struct file *, struct netbsd32_iovec *,
int, off_t *, int, register_t *);
struct iovec *
netbsd32_get_iov(struct netbsd32_iovec *iov32, int iovlen, struct iovec *aiov,
int aiov_len)
{
#define N_IOV32 8
struct netbsd32_iovec aiov32[N_IOV32];
struct iovec *iov = aiov;
struct iovec *iovp;
int i, n, j;
int error;
if (iovlen < 0 || iovlen > IOV_MAX)
return NULL;
if (iovlen > aiov_len)
iov = malloc(iovlen * sizeof (*iov), M_TEMP, M_WAITOK);
iovp = iov;
for (i = 0; i < iovlen; iov32 += N_IOV32, i += N_IOV32) {
n = iovlen - i;
if (n > N_IOV32)
n = N_IOV32;
error = copyin(iov32, aiov32, n * sizeof (*iov32));
if (error != 0) {
if (iov != aiov)
free(iov, M_TEMP);
return NULL;
}
for (j = 0; j < n; iovp++, j++) {
iovp->iov_base = NETBSD32PTR64(aiov32[j].iov_base);
iovp->iov_len = aiov32[j].iov_len;
}
}
return iov;
#undef N_IOV32
}
int
netbsd32_readv(struct lwp *l, const struct netbsd32_readv_args *uap, register_t *retval)
{
/* {
syscallarg(int) fd;
syscallarg(const netbsd32_iovecp_t) iovp;
syscallarg(int) iovcnt;
} */
int fd = SCARG(uap, fd);
file_t *fp;
if ((fp = fd_getfile(fd)) == NULL)
return (EBADF);
if ((fp->f_flag & FREAD) == 0) {
fd_putfile(fd);
return (EBADF);
}
return (dofilereadv32(fd, fp,
(struct netbsd32_iovec *)SCARG_P32(uap, iovp),
SCARG(uap, iovcnt), &fp->f_offset, FOF_UPDATE_OFFSET, retval));
}
/* Damn thing copies in the iovec! */
int
dofilereadv32(int fd, struct file *fp, struct netbsd32_iovec *iovp, int iovcnt, off_t *offset, int flags, register_t *retval)
{
struct uio auio;
struct iovec *iov;
struct iovec *needfree;
struct iovec aiov[UIO_SMALLIOV];
long i, cnt, error = 0;
u_int iovlen;
struct iovec *ktriov = NULL;
/* note: can't use iovlen until iovcnt is validated */
iovlen = iovcnt * sizeof(struct iovec);
if ((u_int)iovcnt > UIO_SMALLIOV) {
if ((u_int)iovcnt > IOV_MAX) {
error = EINVAL;
goto out;
}
iov = malloc(iovlen, M_IOV, M_WAITOK);
needfree = iov;
} else if ((u_int)iovcnt > 0) {
iov = aiov;
needfree = NULL;
} else {
error = EINVAL;
goto out;
}
auio.uio_iov = iov;
auio.uio_iovcnt = iovcnt;
auio.uio_rw = UIO_READ;
auio.uio_vmspace = curproc->p_vmspace;
error = netbsd32_to_iovecin(iovp, iov, iovcnt);
if (error)
goto done;
auio.uio_resid = 0;
for (i = 0; i < iovcnt; i++) {
auio.uio_resid += iov->iov_len;
/*
* Reads return ssize_t because -1 is returned on error.
* Therefore we must restrict the length to SSIZE_MAX to
* avoid garbage return values.
*/
if (iov->iov_len > SSIZE_MAX || auio.uio_resid > SSIZE_MAX) {
error = EINVAL;
goto done;
}
iov++;
}
/*
* if tracing, save a copy of iovec
*/
if (ktrpoint(KTR_GENIO)) {
ktriov = malloc(iovlen, M_TEMP, M_WAITOK);
memcpy((void *)ktriov, (void *)auio.uio_iov, iovlen);
}
cnt = auio.uio_resid;
error = (*fp->f_ops->fo_read)(fp, offset, &auio, fp->f_cred, flags);
if (error)
if (auio.uio_resid != cnt && (error == ERESTART ||
error == EINTR || error == EWOULDBLOCK))
error = 0;
cnt -= auio.uio_resid;
if (ktriov != NULL) {
ktrgeniov(fd, UIO_READ, ktriov, cnt, error);
free(ktriov, M_TEMP);
}
*retval = cnt;
done:
if (needfree)
free(needfree, M_IOV);
out:
fd_putfile(fd);
return (error);
}
int
netbsd32_writev(struct lwp *l, const struct netbsd32_writev_args *uap, register_t *retval)
{
/* {
syscallarg(int) fd;
syscallarg(const netbsd32_iovecp_t) iovp;
syscallarg(int) iovcnt;
} */
int fd = SCARG(uap, fd);
file_t *fp;
if ((fp = fd_getfile(fd)) == NULL)
return (EBADF);
if ((fp->f_flag & FWRITE) == 0) {
fd_putfile(fd);
return (EBADF);
}
return (dofilewritev32(fd, fp,
(struct netbsd32_iovec *)SCARG_P32(uap, iovp),
SCARG(uap, iovcnt), &fp->f_offset, FOF_UPDATE_OFFSET, retval));
}
int
dofilewritev32(int fd, struct file *fp, struct netbsd32_iovec *iovp, int iovcnt, off_t *offset, int flags, register_t *retval)
{
struct uio auio;
struct iovec *iov;
struct iovec *needfree;
struct iovec aiov[UIO_SMALLIOV];
long i, cnt, error = 0;
u_int iovlen;
struct iovec *ktriov = NULL;
/* note: can't use iovlen until iovcnt is validated */
iovlen = iovcnt * sizeof(struct iovec);
if ((u_int)iovcnt > UIO_SMALLIOV) {
if ((u_int)iovcnt > IOV_MAX) {
error = EINVAL;
goto out;
}
iov = malloc(iovlen, M_IOV, M_WAITOK);
needfree = iov;
} else if ((u_int)iovcnt > 0) {
iov = aiov;
needfree = NULL;
} else {
error = EINVAL;
goto out;
}
auio.uio_iov = iov;
auio.uio_iovcnt = iovcnt;
auio.uio_rw = UIO_WRITE;
auio.uio_vmspace = curproc->p_vmspace;
error = netbsd32_to_iovecin(iovp, iov, iovcnt);
if (error)
goto done;
auio.uio_resid = 0;
for (i = 0; i < iovcnt; i++) {
auio.uio_resid += iov->iov_len;
/*
* Writes return ssize_t because -1 is returned on error.
* Therefore we must restrict the length to SSIZE_MAX to
* avoid garbage return values.
*/
if (iov->iov_len > SSIZE_MAX || auio.uio_resid > SSIZE_MAX) {
error = EINVAL;
goto done;
}
iov++;
}
/*
* if tracing, save a copy of iovec
*/
if (ktrpoint(KTR_GENIO)) {
ktriov = malloc(iovlen, M_TEMP, M_WAITOK);
memcpy((void *)ktriov, (void *)auio.uio_iov, iovlen);
}
cnt = auio.uio_resid;
error = (*fp->f_ops->fo_write)(fp, offset, &auio, fp->f_cred, flags);
if (error) {
if (auio.uio_resid != cnt && (error == ERESTART ||
error == EINTR || error == EWOULDBLOCK))
error = 0;
if (error == EPIPE) {
mutex_enter(proc_lock);
psignal(curproc, SIGPIPE);
mutex_exit(proc_lock);
}
}
cnt -= auio.uio_resid;
if (ktriov != NULL) {
ktrgenio(fd, UIO_WRITE, ktriov, cnt, error);
free(ktriov, M_TEMP);
}
*retval = cnt;
done:
if (needfree)
free(needfree, M_IOV);
out:
fd_putfile(fd);
return (error);
}
/*
* Common routine to set access and modification times given a vnode.
*/
static int
get_utimes32(const netbsd32_timevalp_t *tptr, struct timeval *tv,
struct timeval **tvp)
{
int error;
struct netbsd32_timeval tv32[2];
if (tptr == NULL) {
*tvp = NULL;
return 0;
}
error = copyin(tptr, tv32, sizeof(tv32));
if (error)
return error;
netbsd32_to_timeval(&tv32[0], &tv[0]);
netbsd32_to_timeval(&tv32[1], &tv[1]);
*tvp = tv;
return 0;
}
int
netbsd32___utimes50(struct lwp *l, const struct netbsd32___utimes50_args *uap, register_t *retval)
{
/* {
syscallarg(const netbsd32_charp) path;
syscallarg(const netbsd32_timevalp_t) tptr;
} */
int error;
struct timeval tv[2], *tvp;
error = get_utimes32(SCARG_P32(uap, tptr), tv, &tvp);
if (error != 0)
return error;
return do_sys_utimes(l, NULL, SCARG_P32(uap, path), FOLLOW,
tvp, UIO_SYSSPACE);
}
static int
netbds32_copyout_statvfs(const void *kp, void *up, size_t len)
{
struct netbsd32_statvfs *sbuf_32;
int error;
sbuf_32 = malloc(sizeof *sbuf_32, M_TEMP, M_WAITOK);
netbsd32_from_statvfs(kp, sbuf_32);
error = copyout(sbuf_32, up, sizeof(*sbuf_32));
free(sbuf_32, M_TEMP);
return error;
}
int
netbsd32_statvfs1(struct lwp *l, const struct netbsd32_statvfs1_args *uap, register_t *retval)
{
/* {
syscallarg(const netbsd32_charp) path;
syscallarg(netbsd32_statvfsp_t) buf;
syscallarg(int) flags;
} */
struct statvfs *sb;
int error;
sb = STATVFSBUF_GET();
error = do_sys_pstatvfs(l, SCARG_P32(uap, path), SCARG(uap, flags), sb);
if (error == 0)
error = netbds32_copyout_statvfs(sb, SCARG_P32(uap, buf), 0);
STATVFSBUF_PUT(sb);
return error;
}
int
netbsd32_fstatvfs1(struct lwp *l, const struct netbsd32_fstatvfs1_args *uap, register_t *retval)
{
/* {
syscallarg(int) fd;
syscallarg(netbsd32_statvfsp_t) buf;
syscallarg(int) flags;
} */
struct statvfs *sb;
int error;
sb = STATVFSBUF_GET();
error = do_sys_fstatvfs(l, SCARG(uap, fd), SCARG(uap, flags), sb);
if (error == 0)
error = netbds32_copyout_statvfs(sb, SCARG_P32(uap, buf), 0);
STATVFSBUF_PUT(sb);
return error;
}
int
netbsd32_getvfsstat(struct lwp *l, const struct netbsd32_getvfsstat_args *uap, register_t *retval)
{
/* {
syscallarg(netbsd32_statvfsp_t) buf;
syscallarg(netbsd32_size_t) bufsize;
syscallarg(int) flags;
} */
return do_sys_getvfsstat(l, SCARG_P32(uap, buf), SCARG(uap, bufsize),
SCARG(uap, flags), netbds32_copyout_statvfs,
sizeof (struct netbsd32_statvfs), retval);
}
int
netbsd32___fhstatvfs140(struct lwp *l, const struct netbsd32___fhstatvfs140_args *uap, register_t *retval)
{
/* {
syscallarg(const netbsd32_pointer_t) fhp;
syscallarg(netbsd32_size_t) fh_size;
syscallarg(netbsd32_statvfsp_t) buf;
syscallarg(int) flags;
} */
struct statvfs *sb;
int error;
sb = STATVFSBUF_GET();
error = do_fhstatvfs(l, SCARG_P32(uap, fhp), SCARG(uap, fh_size), sb,
SCARG(uap, flags));
if (error == 0)
error = netbds32_copyout_statvfs(sb, SCARG_P32(uap, buf), 0);
STATVFSBUF_PUT(sb);
return error;
}
int
netbsd32___futimes50(struct lwp *l, const struct netbsd32___futimes50_args *uap, register_t *retval)
{
/* {
syscallarg(int) fd;
syscallarg(const netbsd32_timevalp_t) tptr;
} */
int error;
file_t *fp;
struct timeval tv[2], *tvp;
error = get_utimes32(SCARG_P32(uap, tptr), tv, &tvp);
if (error != 0)
return error;
/* fd_getvnode() will use the descriptor for us */
if ((error = fd_getvnode(SCARG(uap, fd), &fp)) != 0)
return (error);
error = do_sys_utimes(l, fp->f_data, NULL, 0, tvp, UIO_SYSSPACE);
fd_putfile(SCARG(uap, fd));
return (error);
}
int
netbsd32___getdents30(struct lwp *l,
const struct netbsd32___getdents30_args *uap, register_t *retval)
{
/* {
syscallarg(int) fd;
syscallarg(netbsd32_charp) buf;
syscallarg(netbsd32_size_t) count;
} */
file_t *fp;
int error, done;
/* fd_getvnode() will use the descriptor for us */
if ((error = fd_getvnode(SCARG(uap, fd), &fp)) != 0)
return (error);
if ((fp->f_flag & FREAD) == 0) {
error = EBADF;
goto out;
}
error = vn_readdir(fp, SCARG_P32(uap, buf),
UIO_USERSPACE, SCARG(uap, count), &done, l, 0, 0);
*retval = done;
out:
fd_putfile(SCARG(uap, fd));
return (error);
}
int
netbsd32___lutimes50(struct lwp *l,
const struct netbsd32___lutimes50_args *uap, register_t *retval)
{
/* {
syscallarg(const netbsd32_charp) path;
syscallarg(const netbsd32_timevalp_t) tptr;
} */
int error;
struct timeval tv[2], *tvp;
error = get_utimes32(SCARG_P32(uap, tptr), tv, &tvp);
if (error != 0)
return error;
return do_sys_utimes(l, NULL, SCARG_P32(uap, path), NOFOLLOW,
tvp, UIO_SYSSPACE);
}
int
netbsd32___stat50(struct lwp *l, const struct netbsd32___stat50_args *uap, register_t *retval)
{
/* {
syscallarg(const netbsd32_charp) path;
syscallarg(netbsd32_statp_t) ub;
} */
struct netbsd32_stat sb32;
struct stat sb;
int error;
const char *path;
path = SCARG_P32(uap, path);
error = do_sys_stat(path, FOLLOW, &sb);
if (error)
return (error);
netbsd32_from_stat(&sb, &sb32);
error = copyout(&sb32, SCARG_P32(uap, ub), sizeof(sb32));
return (error);
}
int
netbsd32___fstat50(struct lwp *l, const struct netbsd32___fstat50_args *uap, register_t *retval)
{
/* {
syscallarg(int) fd;
syscallarg(netbsd32_statp_t) sb;
} */
struct netbsd32_stat sb32;
struct stat ub;
int error;
error = do_sys_fstat(SCARG(uap, fd), &ub);
if (error == 0) {
netbsd32_from_stat(&ub, &sb32);
error = copyout(&sb32, SCARG_P32(uap, sb), sizeof(sb32));
}
return (error);
}
int
netbsd32___lstat50(struct lwp *l, const struct netbsd32___lstat50_args *uap, register_t *retval)
{
/* {
syscallarg(const netbsd32_charp) path;
syscallarg(netbsd32_statp_t) ub;
} */
struct netbsd32_stat sb32;
struct stat sb;
int error;
const char *path;
path = SCARG_P32(uap, path);
error = do_sys_stat(path, NOFOLLOW, &sb);
if (error)
return (error);
netbsd32_from_stat(&sb, &sb32);
error = copyout(&sb32, SCARG_P32(uap, ub), sizeof(sb32));
return (error);
}
int
netbsd32___fhstat50(struct lwp *l, const struct netbsd32___fhstat50_args *uap, register_t *retval)
{
/* {
syscallarg(const netbsd32_pointer_t) fhp;
syscallarg(netbsd32_size_t) fh_size;
syscallarg(netbsd32_statp_t) sb;
} */
struct stat sb;
struct netbsd32_stat sb32;
int error;
error = do_fhstat(l, SCARG_P32(uap, fhp), SCARG(uap, fh_size), &sb);
if (error != 0) {
netbsd32_from_stat(&sb, &sb32);
error = copyout(&sb32, SCARG_P32(uap, sb), sizeof(sb));
}
return error;
}
int
netbsd32_preadv(struct lwp *l, const struct netbsd32_preadv_args *uap, register_t *retval)
{
/* {
syscallarg(int) fd;
syscallarg(const netbsd32_iovecp_t) iovp;
syscallarg(int) iovcnt;
syscallarg(int) pad;
syscallarg(off_t) offset;
} */
file_t *fp;
struct vnode *vp;
off_t offset;
int error, fd = SCARG(uap, fd);
if ((fp = fd_getfile(fd)) == NULL)
return (EBADF);
if ((fp->f_flag & FREAD) == 0) {
fd_putfile(fd);
return (EBADF);
}
vp = fp->f_data;
if (fp->f_type != DTYPE_VNODE || vp->v_type == VFIFO) {
error = ESPIPE;
goto out;
}
offset = SCARG(uap, offset);
/*
* XXX This works because no file systems actually
* XXX take any action on the seek operation.
*/
if ((error = VOP_SEEK(vp, fp->f_offset, offset, fp->f_cred)) != 0)
goto out;
return (dofilereadv32(fd, fp, SCARG_P32(uap, iovp),
SCARG(uap, iovcnt), &offset, 0, retval));
out:
fd_putfile(fd);
return (error);
}
int
netbsd32_pwritev(struct lwp *l, const struct netbsd32_pwritev_args *uap, register_t *retval)
{
/* {
syscallarg(int) fd;
syscallarg(const netbsd32_iovecp_t) iovp;
syscallarg(int) iovcnt;
syscallarg(int) pad;
syscallarg(off_t) offset;
} */
file_t *fp;
struct vnode *vp;
off_t offset;
int error, fd = SCARG(uap, fd);
if ((fp = fd_getfile(fd)) == NULL)
return (EBADF);
if ((fp->f_flag & FWRITE) == 0) {
fd_putfile(fd);
return (EBADF);
}
vp = fp->f_data;
if (fp->f_type != DTYPE_VNODE || vp->v_type == VFIFO) {
error = ESPIPE;
goto out;
}
offset = SCARG(uap, offset);
/*
* XXX This works because no file systems actually
* XXX take any action on the seek operation.
*/
if ((error = VOP_SEEK(vp, fp->f_offset, offset, fp->f_cred)) != 0)
goto out;
return (dofilewritev32(fd, fp, SCARG_P32(uap, iovp),
SCARG(uap, iovcnt), &offset, 0, retval));
out:
fd_putfile(fd);
return (error);
}
/*
* Find pathname of process's current directory.
*
* Use vfs vnode-to-name reverse cache; if that fails, fall back
* to reading directory contents.
*/
/* XXX NH Why does this exist */
int
getcwd_common(struct vnode *, struct vnode *,
char **, char *, int, int, struct lwp *);
int
netbsd32___getcwd(struct lwp *l, const struct netbsd32___getcwd_args *uap, register_t *retval)
{
/* {
syscallarg(char *) bufp;
syscallarg(size_t) length;
} */
struct proc *p = l->l_proc;
int error;
char *path;
char *bp, *bend;
int len = (int)SCARG(uap, length);
int lenused;
struct cwdinfo *cwdi;
if (len > MAXPATHLEN*4)
len = MAXPATHLEN*4;
else if (len < 2)
return ERANGE;
path = (char *)malloc(len, M_TEMP, M_WAITOK);
if (!path)
return ENOMEM;
bp = &path[len];
bend = bp;
*(--bp) = '\0';
/*
* 5th argument here is "max number of vnodes to traverse".
* Since each entry takes up at least 2 bytes in the output buffer,
* limit it to N/2 vnodes for an N byte buffer.
*/
#define GETCWD_CHECK_ACCESS 0x0001
cwdi = p->p_cwdi;
rw_enter(&cwdi->cwdi_lock, RW_READER);
error = getcwd_common (cwdi->cwdi_cdir, NULL, &bp, path, len/2,
GETCWD_CHECK_ACCESS, l);
rw_exit(&cwdi->cwdi_lock);
if (error)
goto out;
lenused = bend - bp;
*retval = lenused;
/* put the result into user buffer */
error = copyout(bp, SCARG_P32(uap, bufp), lenused);
out:
free(path, M_TEMP);
return error;
}
int
netbsd32___mount50(struct lwp *l, const struct netbsd32___mount50_args *uap,
register_t *retval)
{
/* {
syscallarg(netbsd32_charp) type;
syscallarg(netbsd32_charp) path;
syscallarg(int) flags;
syscallarg(netbsd32_voidp) data;
syscallarg(netbsd32_size_t) data_len;
} */
char mtype[MNAMELEN];
union {
struct netbsd32_ufs_args ufs_args;
struct netbsd32_mfs_args mfs_args;
struct netbsd32_iso_args iso_args;
} fs_args32;
union {
struct ufs_args ufs_args;
struct mfs_args mfs_args;
struct iso_args iso_args;
} fs_args;
const char *type = SCARG_P32(uap, type);
const char *path = SCARG_P32(uap, path);
int flags = SCARG(uap, flags);
void *data = SCARG_P32(uap, data);
size_t data_len = SCARG(uap, data_len);
enum uio_seg data_seg;
size_t len;
int error;
error = copyinstr(type, mtype, sizeof(mtype), &len);
if (error)
return error;
if (strcmp(mtype, MOUNT_MFS) == 0) {
if (data_len != sizeof(fs_args32.mfs_args))
return EINVAL;
if ((flags & MNT_GETARGS) == 0) {
error = copyin(data, &fs_args32.mfs_args,
sizeof(fs_args32.mfs_args));
if (error)
return error;
fs_args.mfs_args.fspec =
NETBSD32PTR64(fs_args32.mfs_args.fspec);
memset(&fs_args.mfs_args._pad1, 0,
sizeof(fs_args.mfs_args._pad1));
fs_args.mfs_args.base =
NETBSD32PTR64(fs_args32.mfs_args.base);
fs_args.mfs_args.size = fs_args32.mfs_args.size;
}
data_seg = UIO_SYSSPACE;
data = &fs_args.mfs_args;
data_len = sizeof(fs_args.mfs_args);
} else if (strcmp(mtype, MOUNT_UFS) == 0) {
if (data_len > sizeof(fs_args32.ufs_args))
return EINVAL;
if ((flags & MNT_GETARGS) == 0) {
error = copyin(data, &fs_args32.ufs_args,
sizeof(fs_args32.ufs_args));
if (error)
return error;
fs_args.ufs_args.fspec =
NETBSD32PTR64(fs_args32.ufs_args.fspec);
}
data_seg = UIO_SYSSPACE;
data = &fs_args.ufs_args;
data_len = sizeof(fs_args.ufs_args);
} else if (strcmp(mtype, MOUNT_CD9660) == 0) {
if (data_len != sizeof(fs_args32.iso_args))
return EINVAL;
if ((flags & MNT_GETARGS) == 0) {
error = copyin(data, &fs_args32.iso_args,
sizeof(fs_args32.iso_args));
if (error)
return error;
fs_args.iso_args.fspec =
NETBSD32PTR64(fs_args32.iso_args.fspec);
memset(&fs_args.iso_args._pad1, 0,
sizeof(fs_args.iso_args._pad1));
fs_args.iso_args.flags = fs_args32.iso_args.flags;
}
data_seg = UIO_SYSSPACE;
data = &fs_args.iso_args;
data_len = sizeof(fs_args.iso_args);
} else {
data_seg = UIO_USERSPACE;
}
error = do_sys_mount(l, NULL, type, path, flags, data, data_seg,
data_len, retval);
if (error)
return error;
if (flags & MNT_GETARGS) {
data_len = *retval;
if (strcmp(mtype, MOUNT_MFS) == 0) {
if (data_len != sizeof(fs_args.mfs_args))
return EINVAL;
NETBSD32PTR32(fs_args32.mfs_args.fspec,
fs_args.mfs_args.fspec);
memset(&fs_args32.mfs_args._pad1, 0,
sizeof(fs_args32.mfs_args._pad1));
NETBSD32PTR32(fs_args32.mfs_args.base,
fs_args.mfs_args.base);
fs_args32.mfs_args.size = fs_args.mfs_args.size;
error = copyout(&fs_args32.mfs_args, data,
sizeof(fs_args32.mfs_args));
} else if (strcmp(mtype, MOUNT_UFS) == 0) {
if (data_len != sizeof(fs_args.ufs_args))
return EINVAL;
NETBSD32PTR32(fs_args32.ufs_args.fspec,
fs_args.ufs_args.fspec);
error = copyout(&fs_args32.ufs_args, data,
sizeof(fs_args32.ufs_args));
} else if (strcmp(mtype, MOUNT_CD9660) == 0) {
if (data_len != sizeof(fs_args.iso_args))
return EINVAL;
NETBSD32PTR32(fs_args32.iso_args.fspec,
fs_args.iso_args.fspec);
memset(&fs_args32.iso_args._pad1, 0,
sizeof(fs_args32.iso_args._pad1));
fs_args32.iso_args.flags = fs_args.iso_args.flags;
error = copyout(&fs_args32.iso_args, data,
sizeof(fs_args32.iso_args));
}
}
return error;
}
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