/*- * Copyright (c) 1994-1995 Søren Schmidt * 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 * in this position and unchanged. * 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. * 3. The name of the author may not be used to endorse or promote products * derived from this software withough specific prior written permission * * 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. * * $Id: linux_stats.c,v 1.8 1997/02/22 09:38:25 peter Exp $ */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include struct linux_newstat { unsigned short stat_dev; unsigned short __pad1; unsigned long stat_ino; unsigned short stat_mode; unsigned short stat_nlink; unsigned short stat_uid; unsigned short stat_gid; unsigned short stat_rdev; unsigned short __pad2; unsigned long stat_size; unsigned long stat_blksize; unsigned long stat_blocks; unsigned long stat_atime; unsigned long __unused1; unsigned long stat_mtime; unsigned long __unused2; unsigned long stat_ctime; unsigned long __unused3; unsigned long __unused4; unsigned long __unused5; }; static int newstat_copyout(struct stat *buf, void *ubuf) { struct linux_newstat tbuf; tbuf.stat_dev = (buf->st_dev & 0xff) | ((buf->st_dev & 0xff00)<<10); tbuf.stat_ino = buf->st_ino; tbuf.stat_mode = buf->st_mode; tbuf.stat_nlink = buf->st_nlink; tbuf.stat_uid = buf->st_uid; tbuf.stat_gid = buf->st_gid; tbuf.stat_rdev = buf->st_rdev; tbuf.stat_size = buf->st_size; tbuf.stat_atime = buf->st_atime; tbuf.stat_mtime = buf->st_mtime; tbuf.stat_ctime = buf->st_ctime; tbuf.stat_blksize = buf->st_blksize; tbuf.stat_blocks = buf->st_blocks; return copyout(&tbuf, ubuf, sizeof(tbuf)); } int linux_newstat(struct proc *p, struct linux_newstat_args *args) { struct stat buf; struct nameidata nd; int error; caddr_t sg; sg = stackgap_init(); CHECKALTEXIST(p, &sg, args->path); #ifdef DEBUG printf("Linux-emul(%d): newstat(%s, *)\n", p->p_pid, args->path); #endif NDINIT(&nd, LOOKUP, LOCKLEAF|FOLLOW, UIO_USERSPACE, args->path, p); error = namei(&nd); if (!error) { error = vn_stat(nd.ni_vp, &buf, p); vput(nd.ni_vp); } if (!error) error = newstat_copyout(&buf, args->buf); return error; } /* * Get file status; this version does not follow links. */ int linux_newlstat(p, uap) struct proc *p; struct linux_newlstat_args *uap; { int error; struct vnode *vp, *dvp; struct stat sb, sb1; struct nameidata nd; caddr_t sg; sg = stackgap_init(); CHECKALTEXIST(p, &sg, uap->path); #ifdef DEBUG printf("Linux-emul(%d): newlstat(%s, *)\n", p->p_pid, uap->path); #endif NDINIT(&nd, LOOKUP, NOFOLLOW | LOCKLEAF | LOCKPARENT, UIO_USERSPACE, uap->path, p); error = namei(&nd); if (error) return (error); /* * For symbolic links, always return the attributes of its * containing directory, except for mode, size, and links. */ vp = nd.ni_vp; dvp = nd.ni_dvp; if (vp->v_type != VLNK) { if (dvp == vp) vrele(dvp); else vput(dvp); error = vn_stat(vp, &sb, p); vput(vp); if (error) return (error); } else { error = vn_stat(dvp, &sb, p); vput(dvp); if (error) { vput(vp); return (error); } error = vn_stat(vp, &sb1, p); vput(vp); if (error) return (error); sb.st_mode &= ~S_IFDIR; sb.st_mode |= S_IFLNK; sb.st_nlink = sb1.st_nlink; sb.st_size = sb1.st_size; sb.st_blocks = sb1.st_blocks; } error = newstat_copyout(&sb, uap->buf); return (error); } int linux_newfstat(struct proc *p, struct linux_newfstat_args *args) { struct filedesc *fdp = p->p_fd; struct file *fp; struct stat buf; int error; #ifdef DEBUG printf("Linux-emul(%d): newfstat(%d, *)\n", p->p_pid, args->fd); #endif if ((unsigned)args->fd >= fdp->fd_nfiles || (fp = fdp->fd_ofiles[args->fd]) == NULL) return EBADF; switch (fp->f_type) { case DTYPE_FIFO: case DTYPE_VNODE: error = vn_stat((struct vnode *)fp->f_data, &buf, p); break; case DTYPE_SOCKET: error = soo_stat((struct socket *)fp->f_data, &buf); break; case DTYPE_PIPE: error = pipe_stat((struct pipe *)fp->f_data, &buf); break; default: panic("LINUX newfstat"); } if (!error) error = newstat_copyout(&buf, args->buf); return error; } struct linux_statfs_buf { long ftype; long fbsize; long fblocks; long fbfree; long fbavail; long ffiles; long fffree; linux_fsid_t ffsid; long fnamelen; long fspare[6]; }; int linux_statfs(struct proc *p, struct linux_statfs_args *args) { struct mount *mp; struct nameidata *ndp; struct statfs *bsd_statfs; struct nameidata nd; struct linux_statfs_buf linux_statfs_buf; int error; caddr_t sg; sg = stackgap_init(); CHECKALTEXIST(p, &sg, args->path); #ifdef DEBUG printf("Linux-emul(%d): statfs(%s, *)\n", p->p_pid, args->path); #endif ndp = &nd; NDINIT(ndp, LOOKUP, FOLLOW, UIO_USERSPACE, args->path, curproc); if (error = namei(ndp)) return error; mp = ndp->ni_vp->v_mount; bsd_statfs = &mp->mnt_stat; vrele(ndp->ni_vp); if (error = VFS_STATFS(mp, bsd_statfs, p)) return error; bsd_statfs->f_flags = mp->mnt_flag & MNT_VISFLAGMASK; linux_statfs_buf.ftype = bsd_statfs->f_type; linux_statfs_buf.fbsize = bsd_statfs->f_bsize; linux_statfs_buf.fblocks = bsd_statfs->f_blocks; linux_statfs_buf.fbfree = bsd_statfs->f_bfree; linux_statfs_buf.fbavail = bsd_statfs->f_bavail; linux_statfs_buf.fffree = bsd_statfs->f_ffree; linux_statfs_buf.ffiles = bsd_statfs->f_files; linux_statfs_buf.ffsid.val[0] = bsd_statfs->f_fsid.val[0]; linux_statfs_buf.ffsid.val[1] = bsd_statfs->f_fsid.val[1]; linux_statfs_buf.fnamelen = MAXNAMLEN; return copyout((caddr_t)&linux_statfs_buf, (caddr_t)args->buf, sizeof(struct linux_statfs_buf)); } int linux_fstatfs(struct proc *p, struct linux_fstatfs_args *args) { struct file *fp; struct mount *mp; struct statfs *bsd_statfs; struct linux_statfs_buf linux_statfs_buf; int error; #ifdef DEBUG printf("Linux-emul(%d): fstatfs(%d, *)\n", p->p_pid, args->fd); #endif if (error = getvnode(p->p_fd, args->fd, &fp)) return error; mp = ((struct vnode *)fp->f_data)->v_mount; bsd_statfs = &mp->mnt_stat; if (error = VFS_STATFS(mp, bsd_statfs, p)) return error; bsd_statfs->f_flags = mp->mnt_flag & MNT_VISFLAGMASK; linux_statfs_buf.ftype = bsd_statfs->f_type; linux_statfs_buf.fbsize = bsd_statfs->f_bsize; linux_statfs_buf.fblocks = bsd_statfs->f_blocks; linux_statfs_buf.fbfree = bsd_statfs->f_bfree; linux_statfs_buf.fbavail = bsd_statfs->f_bavail; linux_statfs_buf.fffree = bsd_statfs->f_ffree; linux_statfs_buf.ffiles = bsd_statfs->f_files; linux_statfs_buf.ffsid.val[0] = bsd_statfs->f_fsid.val[0]; linux_statfs_buf.ffsid.val[1] = bsd_statfs->f_fsid.val[1]; linux_statfs_buf.fnamelen = MAXNAMLEN; return copyout((caddr_t)&linux_statfs_buf, (caddr_t)args->buf, sizeof(struct linux_statfs_buf)); }