341 lines
9.1 KiB
C
341 lines
9.1 KiB
C
/* $NetBSD: ibcs2_stat.c,v 1.50 2017/07/29 01:14:00 riastradh Exp $ */
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/*
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* Copyright (c) 1995, 1998 Scott Bartram
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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, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: ibcs2_stat.c,v 1.50 2017/07/29 01:14:00 riastradh Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/namei.h>
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#include <sys/proc.h>
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#include <sys/file.h>
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#include <sys/stat.h>
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#include <sys/filedesc.h>
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#include <sys/ioctl.h>
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#include <sys/kernel.h>
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#include <sys/mount.h>
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#include <sys/vnode.h>
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#include <sys/syscallargs.h>
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#include <sys/vfs_syscalls.h>
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#include <compat/ibcs2/ibcs2_types.h>
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#include <compat/ibcs2/ibcs2_fcntl.h>
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#include <compat/ibcs2/ibcs2_signal.h>
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#include <compat/ibcs2/ibcs2_stat.h>
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#include <compat/ibcs2/ibcs2_statfs.h>
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#include <compat/ibcs2/ibcs2_syscallargs.h>
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#include <compat/ibcs2/ibcs2_ustat.h>
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#include <compat/ibcs2/ibcs2_util.h>
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#include <compat/ibcs2/ibcs2_utsname.h>
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static void bsd_stat2ibcs_stat(struct stat *, struct ibcs2_stat *);
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static int cvt_statfs(struct statvfs *, void *, int);
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static int cvt_statvfs(struct statvfs *, void *, int);
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static void
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bsd_stat2ibcs_stat(struct stat *st, struct ibcs2_stat *st4)
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{
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memset(st4, 0, sizeof(*st4));
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st4->st_dev = (ibcs2_dev_t)st->st_dev;
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st4->st_ino = (ibcs2_ino_t)st->st_ino;
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st4->st_mode = (ibcs2_mode_t)st->st_mode;
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if (st->st_nlink >= (1 << 15))
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st4->st_nlink = (1 << 15) - 1;
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else
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st4->st_nlink = (ibcs2_nlink_t)st->st_nlink;
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st4->st_uid = (ibcs2_uid_t)st->st_uid;
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st4->st_gid = (ibcs2_gid_t)st->st_gid;
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st4->st_rdev = (ibcs2_dev_t)st->st_rdev;
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st4->st_size = (ibcs2_off_t)st->st_size;
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st4->st_atim = (ibcs2_time_t)st->st_atime;
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st4->st_mtim = (ibcs2_time_t)st->st_mtime;
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st4->st_ctim = (ibcs2_time_t)st->st_ctime;
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}
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static int
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cvt_statfs(struct statvfs *sp, void *tbuf, int len)
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{
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struct ibcs2_statfs ssfs;
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if (len < 0)
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return (EINVAL);
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if (len > sizeof(ssfs))
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len = sizeof(ssfs);
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memset(&ssfs, 0, sizeof ssfs);
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ssfs.f_fstyp = 0;
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ssfs.f_bsize = sp->f_bsize;
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ssfs.f_frsize = sp->f_frsize;
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ssfs.f_blocks = sp->f_blocks;
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ssfs.f_bfree = sp->f_bfree;
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ssfs.f_files = sp->f_files;
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ssfs.f_ffree = sp->f_ffree;
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ssfs.f_fname[0] = 0;
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ssfs.f_fpack[0] = 0;
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return copyout((void *)&ssfs, tbuf, len);
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}
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static int
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cvt_statvfs(struct statvfs *sp, void *tbuf, int len)
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{
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struct ibcs2_statvfs ssvfs;
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if (len < 0)
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return (EINVAL);
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if (len > sizeof(ssvfs))
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len = sizeof(ssvfs);
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memset(&ssvfs, 0, sizeof ssvfs);
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ssvfs.f_bsize = sp->f_bsize;
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ssvfs.f_frsize = sp->f_frsize;
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ssvfs.f_blocks = sp->f_blocks;
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ssvfs.f_bfree = sp->f_bfree;
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ssvfs.f_bavail = sp->f_bavail;
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ssvfs.f_files = sp->f_files;
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ssvfs.f_ffree = sp->f_ffree;
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ssvfs.f_favail = sp->f_favail;
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ssvfs.f_fsid = sp->f_fsidx.__fsid_val[0];
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strncpy(ssvfs.f_basetype, sp->f_fstypename, 15);
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ssvfs.f_flag = 0;
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ssvfs.f_namemax = PATH_MAX;
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ssvfs.f_fstr[0] = 0;
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return copyout((void *)&ssvfs, tbuf, len);
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}
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int
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ibcs2_sys_statfs(struct lwp *l, const struct ibcs2_sys_statfs_args *uap, register_t *retval)
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{
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/* {
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syscallarg(const char *) path;
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syscallarg(struct ibcs2_statfs *) buf;
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syscallarg(int) len;
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syscallarg(int) fstype;
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} */
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struct mount *mp;
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struct statvfs *sp;
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int error;
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struct vnode *vp;
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error = namei_simple_user(SCARG(uap, path),
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NSM_FOLLOW_TRYEMULROOT, &vp);
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if (error != 0)
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return (error);
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mp = vp->v_mount;
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sp = &mp->mnt_stat;
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if ((error = VFS_STATVFS(mp, sp)) != 0)
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goto out;
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sp->f_flag = mp->mnt_flag & MNT_VISFLAGMASK;
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error = cvt_statfs(sp, (void *)SCARG(uap, buf), SCARG(uap, len));
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out:
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vrele(vp);
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return (error);
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}
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int
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ibcs2_sys_fstatfs(struct lwp *l, const struct ibcs2_sys_fstatfs_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(struct ibcs2_statfs *) buf;
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syscallarg(int) len;
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syscallarg(int) fstype;
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} */
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file_t *fp;
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struct mount *mp;
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struct statvfs *sp;
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int error;
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/* fd_getvnode() will use the descriptor for us */
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if ((error = fd_getvnode(SCARG(uap, fd), &fp)) != 0)
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return (error);
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mp = fp->f_vnode->v_mount;
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sp = &mp->mnt_stat;
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if ((error = VFS_STATVFS(mp, sp)) != 0)
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goto out;
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sp->f_flag = mp->mnt_flag & MNT_VISFLAGMASK;
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error = cvt_statfs(sp, (void *)SCARG(uap, buf), SCARG(uap, len));
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out:
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fd_putfile(SCARG(uap, fd));
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return (error);
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}
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int
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ibcs2_sys_statvfs(struct lwp *l, const struct ibcs2_sys_statvfs_args *uap, register_t *retval)
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{
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/* {
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syscallarg(const char *) path;
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syscallarg(struct ibcs2_statvfs *) buf;
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} */
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struct mount *mp;
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struct statvfs *sp;
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int error;
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struct vnode *vp;
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error = namei_simple_user(SCARG(uap, path),
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NSM_FOLLOW_TRYEMULROOT, &vp);
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if (error != 0)
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return (error);
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mp = vp->v_mount;
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sp = &mp->mnt_stat;
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if ((error = VFS_STATVFS(mp, sp)) != 0)
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goto out;
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sp->f_flag = mp->mnt_flag & MNT_VISFLAGMASK;
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error = cvt_statvfs(sp, (void *)SCARG(uap, buf),
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sizeof(struct ibcs2_statvfs));
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out:
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vrele(vp);
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return error;
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}
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int
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ibcs2_sys_fstatvfs(struct lwp *l, const struct ibcs2_sys_fstatvfs_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(struct ibcs2_statvfs *) buf;
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} */
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file_t *fp;
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struct mount *mp;
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struct statvfs *sp;
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int error;
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/* fd_getvnode() will use the descriptor for us */
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if ((error = fd_getvnode(SCARG(uap, fd), &fp)) != 0)
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return (error);
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mp = fp->f_vnode->v_mount;
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sp = &mp->mnt_stat;
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if ((error = VFS_STATVFS(mp, sp)) != 0)
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goto out;
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sp->f_flag = mp->mnt_flag & MNT_VISFLAGMASK;
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error = cvt_statvfs(sp, SCARG(uap, buf), sizeof(struct ibcs2_statvfs));
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out:
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fd_putfile(SCARG(uap, fd));
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return (error);
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}
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int
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ibcs2_sys_stat(struct lwp *l, const struct ibcs2_sys_stat_args *uap, register_t *retval)
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{
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/* {
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syscallarg(const char *) path;
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syscallarg(struct ibcs2_stat *) st;
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} */
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struct stat sb;
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struct ibcs2_stat ibcs2_st;
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int error;
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error = do_sys_stat(SCARG(uap, path), FOLLOW, &sb);
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if (error != 0)
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return error;
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bsd_stat2ibcs_stat(&sb, &ibcs2_st);
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return copyout(&ibcs2_st, SCARG(uap, st), sizeof (ibcs2_st));
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}
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int
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ibcs2_sys_lstat(struct lwp *l, const struct ibcs2_sys_lstat_args *uap, register_t *retval)
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{
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/* {
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syscallarg(const char *) path;
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syscallarg(struct ibcs2_stat *) st;
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} */
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struct stat sb;
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struct ibcs2_stat ibcs2_st;
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int error;
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error = do_sys_stat(SCARG(uap, path), NOFOLLOW, &sb);
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if (error != 0)
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return error;
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bsd_stat2ibcs_stat(&sb, &ibcs2_st);
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return copyout((void *)&ibcs2_st, (void *)SCARG(uap, st),
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sizeof (ibcs2_st));
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}
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int
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ibcs2_sys_fstat(struct lwp *l, const struct ibcs2_sys_fstat_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(struct ibcs2_stat *) st;
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} */
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struct stat sb;
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struct ibcs2_stat ibcs2_st;
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int error;
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error = do_sys_fstat(SCARG(uap, fd), &sb);
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if (error != 0)
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return error;
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bsd_stat2ibcs_stat(&sb, &ibcs2_st);
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return copyout(&ibcs2_st, SCARG(uap, st), sizeof (ibcs2_st));
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}
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int
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ibcs2_sys_utssys(struct lwp *l, const struct ibcs2_sys_utssys_args *uap, register_t *retval)
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{
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/* {
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syscallarg(int) a1;
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syscallarg(int) a2;
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syscallarg(int) flag;
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} */
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switch (SCARG(uap, flag)) {
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case 0: /* uname(struct utsname *) */
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{
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struct ibcs2_utsname sut;
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memset(&sut, 0, ibcs2_utsname_len);
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memcpy(sut.sysname, ostype, sizeof(sut.sysname) - 1);
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memcpy(sut.nodename, hostname, sizeof(sut.nodename));
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sut.nodename[sizeof(sut.nodename)-1] = '\0';
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memcpy(sut.release, osrelease, sizeof(sut.release) - 1);
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strlcpy(sut.version, "1", sizeof(sut.version));
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memcpy(sut.machine, machine, sizeof(sut.machine) - 1);
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return copyout((void *)&sut, (void *)SCARG(uap, a1),
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ibcs2_utsname_len);
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}
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case 2: /* ustat(dev_t, struct ustat *) */
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{
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struct ibcs2_ustat xu;
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xu.f_tfree = 20000; /* XXX fixme */
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xu.f_tinode = 32000;
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xu.f_fname[0] = 0;
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xu.f_fpack[0] = 0;
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return copyout((void *)&xu, (void *)SCARG(uap, a2),
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ibcs2_ustat_len);
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}
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default:
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return ENOSYS;
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}
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}
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