diff options
author | ru <ru@FreeBSD.org> | 2001-05-26 11:57:45 +0000 |
---|---|---|
committer | ru <ru@FreeBSD.org> | 2001-05-26 11:57:45 +0000 |
commit | 05f3be90b2e785fbcbac9efe38dd8fb4bd6cdb7c (patch) | |
tree | bc6b0076c297f637980e63a3ebde03fd9302042a /sys/ntfs/ntfs_vnops.c | |
parent | bb3012ea8ac3c3f242d03857752725e5a8e74119 (diff) | |
download | FreeBSD-src-05f3be90b2e785fbcbac9efe38dd8fb4bd6cdb7c.zip FreeBSD-src-05f3be90b2e785fbcbac9efe38dd8fb4bd6cdb7c.tar.gz |
- sys/n[tw]fs moved to sys/fs/n[tw]fs
- /usr/include/n[tw]fs moved to /usr/include/fs/n[tw]fs
Diffstat (limited to 'sys/ntfs/ntfs_vnops.c')
-rw-r--r-- | sys/ntfs/ntfs_vnops.c | 917 |
1 files changed, 0 insertions, 917 deletions
diff --git a/sys/ntfs/ntfs_vnops.c b/sys/ntfs/ntfs_vnops.c deleted file mode 100644 index 072a512..0000000 --- a/sys/ntfs/ntfs_vnops.c +++ /dev/null @@ -1,917 +0,0 @@ -/* $NetBSD: ntfs_vnops.c,v 1.23 1999/10/31 19:45:27 jdolecek Exp $ */ - -/* - * Copyright (c) 1992, 1993 - * The Regents of the University of California. All rights reserved. - * - * This code is derived from software contributed to Berkeley by - * John Heidemann of the UCLA Ficus project. - * - * 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. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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. - * - * $FreeBSD$ - * - */ - -#include <sys/param.h> -#include <sys/systm.h> -#include <sys/kernel.h> -#include <sys/time.h> -#include <sys/types.h> -#include <sys/stat.h> -#include <sys/vnode.h> -#include <sys/mount.h> -#include <sys/namei.h> -#include <sys/malloc.h> -#include <sys/bio.h> -#include <sys/buf.h> -#include <sys/dirent.h> - -#include <vm/vm.h> -#include <vm/vm_param.h> -#if defined(__NetBSD__) -#include <vm/vm_prot.h> -#endif -#include <vm/vm_page.h> -#include <vm/vm_object.h> -#include <vm/vm_pager.h> -#if defined(__FreeBSD__) -#include <vm/vnode_pager.h> -#endif -#include <vm/vm_extern.h> - -#include <sys/sysctl.h> - -/*#define NTFS_DEBUG 1*/ -#include <ntfs/ntfs.h> -#include <ntfs/ntfs_inode.h> -#include <ntfs/ntfs_subr.h> -#if defined(__NetBSD__) -#include <miscfs/specfs/specdev.h> -#include <miscfs/genfs/genfs.h> -#endif - -#include <sys/unistd.h> /* for pathconf(2) constants */ - -static int ntfs_read __P((struct vop_read_args *)); -static int ntfs_write __P((struct vop_write_args *ap)); -static int ntfs_getattr __P((struct vop_getattr_args *ap)); -static int ntfs_inactive __P((struct vop_inactive_args *ap)); -static int ntfs_print __P((struct vop_print_args *ap)); -static int ntfs_reclaim __P((struct vop_reclaim_args *ap)); -static int ntfs_strategy __P((struct vop_strategy_args *ap)); -static int ntfs_access __P((struct vop_access_args *ap)); -static int ntfs_open __P((struct vop_open_args *ap)); -static int ntfs_close __P((struct vop_close_args *ap)); -static int ntfs_readdir __P((struct vop_readdir_args *ap)); -static int ntfs_lookup __P((struct vop_lookup_args *ap)); -static int ntfs_bmap __P((struct vop_bmap_args *ap)); -#if defined(__FreeBSD__) -static int ntfs_fsync __P((struct vop_fsync_args *ap)); -#else -static int ntfs_bypass __P((struct vop_generic_args *ap)); -#endif -static int ntfs_pathconf __P((void *)); - -int ntfs_prtactive = 1; /* 1 => print out reclaim of active vnodes */ - -#if defined(__NetBSD__) -/* - * This is a noop, simply returning what one has been given. - */ -int -ntfs_bmap(ap) - struct vop_bmap_args /* { - struct vnode *a_vp; - daddr_t a_bn; - struct vnode **a_vpp; - daddr_t *a_bnp; - int *a_runp; - int *a_runb; - } */ *ap; -{ - dprintf(("ntfs_bmap: vn: %p, blk: %d\n", ap->a_vp,(u_int32_t)ap->a_bn)); - if (ap->a_vpp != NULL) - *ap->a_vpp = ap->a_vp; - if (ap->a_bnp != NULL) - *ap->a_bnp = ap->a_bn; - if (ap->a_runp != NULL) - *ap->a_runp = 0; - return (0); -} -#endif - -static int -ntfs_read(ap) - struct vop_read_args /* { - struct vnode *a_vp; - struct uio *a_uio; - int a_ioflag; - struct ucred *a_cred; - } */ *ap; -{ - register struct vnode *vp = ap->a_vp; - register struct fnode *fp = VTOF(vp); - register struct ntnode *ip = FTONT(fp); - struct uio *uio = ap->a_uio; - struct ntfsmount *ntmp = ip->i_mp; - u_int64_t toread; - int error; - - dprintf(("ntfs_read: ino: %d, off: %d resid: %d, segflg: %d\n",ip->i_number,(u_int32_t)uio->uio_offset,uio->uio_resid,uio->uio_segflg)); - - dprintf(("ntfs_read: filesize: %d",(u_int32_t)fp->f_size)); - - /* don't allow reading after end of file */ - if (uio->uio_offset > fp->f_size) - toread = 0; - else - toread = min( uio->uio_resid, fp->f_size - uio->uio_offset ); - - dprintf((", toread: %d\n",(u_int32_t)toread)); - - if (toread == 0) - return (0); - - error = ntfs_readattr(ntmp, ip, fp->f_attrtype, - fp->f_attrname, uio->uio_offset, toread, NULL, uio); - if (error) { - printf("ntfs_read: ntfs_readattr failed: %d\n",error); - return (error); - } - - return (0); -} - -#if !defined(__FreeBSD__) - -static int -ntfs_bypass(ap) - struct vop_generic_args /* { - struct vnodeop_desc *a_desc; - <other random data follows, presumably> - } */ *ap; -{ - int error = ENOTTY; - dprintf(("ntfs_bypass: %s\n", ap->a_desc->vdesc_name)); - return (error); -} - -#endif - -static int -ntfs_getattr(ap) - struct vop_getattr_args /* { - struct vnode *a_vp; - struct vattr *a_vap; - struct ucred *a_cred; - struct proc *a_p; - } */ *ap; -{ - register struct vnode *vp = ap->a_vp; - register struct fnode *fp = VTOF(vp); - register struct ntnode *ip = FTONT(fp); - register struct vattr *vap = ap->a_vap; - - dprintf(("ntfs_getattr: %d, flags: %d\n",ip->i_number,ip->i_flag)); - -#if defined(__FreeBSD__) - vap->va_fsid = dev2udev(ip->i_dev); -#else /* NetBSD */ - vap->va_fsid = ip->i_dev; -#endif - vap->va_fileid = ip->i_number; - vap->va_mode = ip->i_mp->ntm_mode; - vap->va_nlink = ip->i_nlink; - vap->va_uid = ip->i_mp->ntm_uid; - vap->va_gid = ip->i_mp->ntm_gid; - vap->va_rdev = 0; /* XXX UNODEV ? */ - vap->va_size = fp->f_size; - vap->va_bytes = fp->f_allocated; - vap->va_atime = ntfs_nttimetounix(fp->f_times.t_access); - vap->va_mtime = ntfs_nttimetounix(fp->f_times.t_write); - vap->va_ctime = ntfs_nttimetounix(fp->f_times.t_create); - vap->va_flags = ip->i_flag; - vap->va_gen = 0; - vap->va_blocksize = ip->i_mp->ntm_spc * ip->i_mp->ntm_bps; - vap->va_type = vp->v_type; - vap->va_filerev = 0; - return (0); -} - - -/* - * Last reference to an ntnode. If necessary, write or delete it. - */ -int -ntfs_inactive(ap) - struct vop_inactive_args /* { - struct vnode *a_vp; - } */ *ap; -{ - register struct vnode *vp = ap->a_vp; -#ifdef NTFS_DEBUG - register struct ntnode *ip = VTONT(vp); -#endif - - dprintf(("ntfs_inactive: vnode: %p, ntnode: %d\n", vp, ip->i_number)); - - if (ntfs_prtactive && vp->v_usecount != 0) - vprint("ntfs_inactive: pushing active", vp); - - VOP__UNLOCK(vp, 0, ap->a_p); - - /* XXX since we don't support any filesystem changes - * right now, nothing more needs to be done - */ - return (0); -} - -/* - * Reclaim an fnode/ntnode so that it can be used for other purposes. - */ -int -ntfs_reclaim(ap) - struct vop_reclaim_args /* { - struct vnode *a_vp; - } */ *ap; -{ - register struct vnode *vp = ap->a_vp; - register struct fnode *fp = VTOF(vp); - register struct ntnode *ip = FTONT(fp); - int error; - - dprintf(("ntfs_reclaim: vnode: %p, ntnode: %d\n", vp, ip->i_number)); - - if (ntfs_prtactive && vp->v_usecount != 0) - vprint("ntfs_reclaim: pushing active", vp); - - if ((error = ntfs_ntget(ip)) != 0) - return (error); - - /* Purge old data structures associated with the inode. */ - cache_purge(vp); - if (ip->i_devvp) { - vrele(ip->i_devvp); - ip->i_devvp = NULL; - } - - ntfs_frele(fp); - ntfs_ntput(ip); - vp->v_data = NULL; - - return (0); -} - -static int -ntfs_print(ap) - struct vop_print_args /* { - struct vnode *a_vp; - } */ *ap; -{ - return (0); -} - -/* - * Calculate the logical to physical mapping if not done already, - * then call the device strategy routine. - */ -int -ntfs_strategy(ap) - struct vop_strategy_args /* { - struct buf *a_bp; - } */ *ap; -{ - register struct buf *bp = ap->a_bp; - register struct vnode *vp = bp->b_vp; - register struct fnode *fp = VTOF(vp); - register struct ntnode *ip = FTONT(fp); - struct ntfsmount *ntmp = ip->i_mp; - int error; - -#ifdef __FreeBSD__ - dprintf(("ntfs_strategy: offset: %d, blkno: %d, lblkno: %d\n", - (u_int32_t)bp->b_offset,(u_int32_t)bp->b_blkno, - (u_int32_t)bp->b_lblkno)); -#else - dprintf(("ntfs_strategy: blkno: %d, lblkno: %d\n", - (u_int32_t)bp->b_blkno, - (u_int32_t)bp->b_lblkno)); -#endif - - dprintf(("strategy: bcount: %d flags: 0x%lx\n", - (u_int32_t)bp->b_bcount,bp->b_flags)); - - if (bp->b_iocmd == BIO_READ) { - u_int32_t toread; - - if (ntfs_cntob(bp->b_blkno) >= fp->f_size) { - clrbuf(bp); - error = 0; - } else { - toread = min(bp->b_bcount, - fp->f_size-ntfs_cntob(bp->b_blkno)); - dprintf(("ntfs_strategy: toread: %d, fsize: %d\n", - toread,(u_int32_t)fp->f_size)); - - error = ntfs_readattr(ntmp, ip, fp->f_attrtype, - fp->f_attrname, ntfs_cntob(bp->b_blkno), - toread, bp->b_data, NULL); - - if (error) { - printf("ntfs_strategy: ntfs_readattr failed\n"); - bp->b_error = error; - bp->b_ioflags |= BIO_ERROR; - } - - bzero(bp->b_data + toread, bp->b_bcount - toread); - } - } else { - size_t tmp; - u_int32_t towrite; - - if (ntfs_cntob(bp->b_blkno) + bp->b_bcount >= fp->f_size) { - printf("ntfs_strategy: CAN'T EXTEND FILE\n"); - bp->b_error = error = EFBIG; - bp->b_ioflags |= BIO_ERROR; - } else { - towrite = min(bp->b_bcount, - fp->f_size-ntfs_cntob(bp->b_blkno)); - dprintf(("ntfs_strategy: towrite: %d, fsize: %d\n", - towrite,(u_int32_t)fp->f_size)); - - error = ntfs_writeattr_plain(ntmp, ip, fp->f_attrtype, - fp->f_attrname, ntfs_cntob(bp->b_blkno),towrite, - bp->b_data, &tmp, NULL); - - if (error) { - printf("ntfs_strategy: ntfs_writeattr fail\n"); - bp->b_error = error; - bp->b_ioflags |= BIO_ERROR; - } - } - } - bufdone(bp); - return (error); -} - -static int -ntfs_write(ap) - struct vop_write_args /* { - struct vnode *a_vp; - struct uio *a_uio; - int a_ioflag; - struct ucred *a_cred; - } */ *ap; -{ - register struct vnode *vp = ap->a_vp; - register struct fnode *fp = VTOF(vp); - register struct ntnode *ip = FTONT(fp); - struct uio *uio = ap->a_uio; - struct ntfsmount *ntmp = ip->i_mp; - u_int64_t towrite; - size_t written; - int error; - - dprintf(("ntfs_write: ino: %d, off: %d resid: %d, segflg: %d\n",ip->i_number,(u_int32_t)uio->uio_offset,uio->uio_resid,uio->uio_segflg)); - dprintf(("ntfs_write: filesize: %d",(u_int32_t)fp->f_size)); - - if (uio->uio_resid + uio->uio_offset > fp->f_size) { - printf("ntfs_write: CAN'T WRITE BEYOND END OF FILE\n"); - return (EFBIG); - } - - towrite = min(uio->uio_resid, fp->f_size - uio->uio_offset); - - dprintf((", towrite: %d\n",(u_int32_t)towrite)); - - error = ntfs_writeattr_plain(ntmp, ip, fp->f_attrtype, - fp->f_attrname, uio->uio_offset, towrite, NULL, &written, uio); -#ifdef NTFS_DEBUG - if (error) - printf("ntfs_write: ntfs_writeattr failed: %d\n", error); -#endif - - return (error); -} - -int -ntfs_access(ap) - struct vop_access_args /* { - struct vnode *a_vp; - int a_mode; - struct ucred *a_cred; - struct proc *a_p; - } */ *ap; -{ - struct vnode *vp = ap->a_vp; - struct ntnode *ip = VTONT(vp); - mode_t mode = ap->a_mode; -#ifdef QUOTA - int error; -#endif - - dprintf(("ntfs_access: %d\n",ip->i_number)); - - /* - * Disallow write attempts on read-only file systems; - * unless the file is a socket, fifo, or a block or - * character device resident on the file system. - */ - if (mode & VWRITE) { - switch ((int)vp->v_type) { - case VDIR: - case VLNK: - case VREG: - if (vp->v_mount->mnt_flag & MNT_RDONLY) - return (EROFS); -#ifdef QUOTA - if (error = getinoquota(ip)) - return (error); -#endif - break; - } - } - - return (vaccess(vp->v_type, ip->i_mp->ntm_mode, ip->i_mp->ntm_uid, - ip->i_mp->ntm_gid, ap->a_mode, ap->a_cred, NULL)); -} - -/* - * Open called. - * - * Nothing to do. - */ -/* ARGSUSED */ -static int -ntfs_open(ap) - struct vop_open_args /* { - struct vnode *a_vp; - int a_mode; - struct ucred *a_cred; - struct proc *a_p; - } */ *ap; -{ -#if NTFS_DEBUG - register struct vnode *vp = ap->a_vp; - register struct ntnode *ip = VTONT(vp); - - printf("ntfs_open: %d\n",ip->i_number); -#endif - - /* - * Files marked append-only must be opened for appending. - */ - - return (0); -} - -/* - * Close called. - * - * Update the times on the inode. - */ -/* ARGSUSED */ -static int -ntfs_close(ap) - struct vop_close_args /* { - struct vnode *a_vp; - int a_fflag; - struct ucred *a_cred; - struct proc *a_p; - } */ *ap; -{ -#if NTFS_DEBUG - register struct vnode *vp = ap->a_vp; - register struct ntnode *ip = VTONT(vp); - - printf("ntfs_close: %d\n",ip->i_number); -#endif - - return (0); -} - -int -ntfs_readdir(ap) - struct vop_readdir_args /* { - struct vnode *a_vp; - struct uio *a_uio; - struct ucred *a_cred; - int *a_ncookies; - u_int **cookies; - } */ *ap; -{ - register struct vnode *vp = ap->a_vp; - register struct fnode *fp = VTOF(vp); - register struct ntnode *ip = FTONT(fp); - struct uio *uio = ap->a_uio; - struct ntfsmount *ntmp = ip->i_mp; - int i, error = 0; - u_int32_t faked = 0, num; - int ncookies = 0; - struct dirent cde; - off_t off; - - dprintf(("ntfs_readdir %d off: %d resid: %d\n",ip->i_number,(u_int32_t)uio->uio_offset,uio->uio_resid)); - - off = uio->uio_offset; - - /* Simulate . in every dir except ROOT */ - if( ip->i_number != NTFS_ROOTINO ) { - struct dirent dot = { NTFS_ROOTINO, - sizeof(struct dirent), DT_DIR, 1, "." }; - - if( uio->uio_offset < sizeof(struct dirent) ) { - dot.d_fileno = ip->i_number; - error = uiomove((char *)&dot,sizeof(struct dirent),uio); - if(error) - return (error); - - ncookies ++; - } - } - - /* Simulate .. in every dir including ROOT */ - if( uio->uio_offset < 2 * sizeof(struct dirent) ) { - struct dirent dotdot = { NTFS_ROOTINO, - sizeof(struct dirent), DT_DIR, 2, ".." }; - - error = uiomove((char *)&dotdot,sizeof(struct dirent),uio); - if(error) - return (error); - - ncookies ++; - } - - faked = (ip->i_number == NTFS_ROOTINO) ? 1 : 2; - num = uio->uio_offset / sizeof(struct dirent) - faked; - - while( uio->uio_resid >= sizeof(struct dirent) ) { - struct attr_indexentry *iep; - - error = ntfs_ntreaddir(ntmp, fp, num, &iep); - - if(error) - return (error); - - if( NULL == iep ) - break; - - for(; !(iep->ie_flag & NTFS_IEFLAG_LAST) && (uio->uio_resid >= sizeof(struct dirent)); - iep = NTFS_NEXTREC(iep, struct attr_indexentry *)) - { - if(!ntfs_isnamepermitted(ntmp,iep)) - continue; - - for(i=0; i<iep->ie_fnamelen; i++) { - cde.d_name[i] = ntfs_u28(iep->ie_fname[i]); - } - cde.d_name[i] = '\0'; - dprintf(("ntfs_readdir: elem: %d, fname:[%s] type: %d, flag: %d, ", - num, cde.d_name, iep->ie_fnametype, - iep->ie_flag)); - cde.d_namlen = iep->ie_fnamelen; - cde.d_fileno = iep->ie_number; - cde.d_type = (iep->ie_fflag & NTFS_FFLAG_DIR) ? DT_DIR : DT_REG; - cde.d_reclen = sizeof(struct dirent); - dprintf(("%s\n", (cde.d_type == DT_DIR) ? "dir":"reg")); - - error = uiomove((char *)&cde, sizeof(struct dirent), uio); - if(error) - return (error); - - ncookies++; - num++; - } - } - - dprintf(("ntfs_readdir: %d entries (%d bytes) read\n", - ncookies,(u_int)(uio->uio_offset - off))); - dprintf(("ntfs_readdir: off: %d resid: %d\n", - (u_int32_t)uio->uio_offset,uio->uio_resid)); - - if (!error && ap->a_ncookies != NULL) { - struct dirent* dpStart; - struct dirent* dp; -#if defined(__FreeBSD__) - u_long *cookies; - u_long *cookiep; -#else /* defined(__NetBSD__) */ - off_t *cookies; - off_t *cookiep; -#endif - - ddprintf(("ntfs_readdir: %d cookies\n",ncookies)); - if (uio->uio_segflg != UIO_SYSSPACE || uio->uio_iovcnt != 1) - panic("ntfs_readdir: unexpected uio from NFS server"); - dpStart = (struct dirent *) - ((caddr_t)uio->uio_iov->iov_base - - (uio->uio_offset - off)); -#if defined(__FreeBSD__) - MALLOC(cookies, u_long *, ncookies * sizeof(u_long), - M_TEMP, M_WAITOK); -#else /* defined(__NetBSD__) */ - MALLOC(cookies, off_t *, ncookies * sizeof(off_t), - M_TEMP, M_WAITOK); -#endif - for (dp = dpStart, cookiep = cookies, i=0; - i < ncookies; - dp = (struct dirent *)((caddr_t) dp + dp->d_reclen), i++) { - off += dp->d_reclen; - *cookiep++ = (u_int) off; - } - *ap->a_ncookies = ncookies; - *ap->a_cookies = cookies; - } -/* - if (ap->a_eofflag) - *ap->a_eofflag = VTONT(ap->a_vp)->i_size <= uio->uio_offset; -*/ - return (error); -} - -int -ntfs_lookup(ap) - struct vop_lookup_args /* { - struct vnode *a_dvp; - struct vnode **a_vpp; - struct componentname *a_cnp; - } */ *ap; -{ - register struct vnode *dvp = ap->a_dvp; - register struct ntnode *dip = VTONT(dvp); - struct ntfsmount *ntmp = dip->i_mp; - struct componentname *cnp = ap->a_cnp; - struct ucred *cred = cnp->cn_cred; - int error; - int lockparent = cnp->cn_flags & LOCKPARENT; -#if NTFS_DEBUG - int wantparent = cnp->cn_flags & (LOCKPARENT|WANTPARENT); -#endif - dprintf(("ntfs_lookup: \"%.*s\" (%ld bytes) in %d, lp: %d, wp: %d \n", - (int)cnp->cn_namelen, cnp->cn_nameptr, cnp->cn_namelen, - dip->i_number, lockparent, wantparent)); - - error = VOP_ACCESS(dvp, VEXEC, cred, cnp->cn_proc); - if(error) - return (error); - - if ((cnp->cn_flags & ISLASTCN) && - (dvp->v_mount->mnt_flag & MNT_RDONLY) && - (cnp->cn_nameiop == DELETE || cnp->cn_nameiop == RENAME)) - return (EROFS); - -#ifdef __NetBSD__ - /* - * We now have a segment name to search for, and a directory - * to search. - * - * Before tediously performing a linear scan of the directory, - * check the name cache to see if the directory/name pair - * we are looking for is known already. - */ - if ((error = cache_lookup(ap->a_dvp, ap->a_vpp, cnp)) >= 0) - return (error); -#endif - - if(cnp->cn_namelen == 1 && cnp->cn_nameptr[0] == '.') { - dprintf(("ntfs_lookup: faking . directory in %d\n", - dip->i_number)); - - VREF(dvp); - *ap->a_vpp = dvp; - error = 0; - } else if (cnp->cn_flags & ISDOTDOT) { - struct ntvattr *vap; - - dprintf(("ntfs_lookup: faking .. directory in %d\n", - dip->i_number)); - - error = ntfs_ntvattrget(ntmp, dip, NTFS_A_NAME, NULL, 0, &vap); - if(error) - return (error); - - VOP__UNLOCK(dvp,0,cnp->cn_proc); - cnp->cn_flags |= PDIRUNLOCK; - - dprintf(("ntfs_lookup: parentdir: %d\n", - vap->va_a_name->n_pnumber)); - error = VFS_VGET(ntmp->ntm_mountp, - vap->va_a_name->n_pnumber,ap->a_vpp); - ntfs_ntvattrrele(vap); - if (error) { - if (VN_LOCK(dvp,LK_EXCLUSIVE|LK_RETRY,cnp->cn_proc)==0) - cnp->cn_flags &= ~PDIRUNLOCK; - return (error); - } - - if (lockparent && (cnp->cn_flags & ISLASTCN)) { - error = VN_LOCK(dvp, LK_EXCLUSIVE, cnp->cn_proc); - if (error) { - vput( *(ap->a_vpp) ); - return (error); - } - cnp->cn_flags &= ~PDIRUNLOCK; - } - } else { - error = ntfs_ntlookupfile(ntmp, dvp, cnp, ap->a_vpp); - if (error) { - dprintf(("ntfs_ntlookupfile: returned %d\n", error)); - return (error); - } - - dprintf(("ntfs_lookup: found ino: %d\n", - VTONT(*ap->a_vpp)->i_number)); - - if(!lockparent || !(cnp->cn_flags & ISLASTCN)) - VOP__UNLOCK(dvp, 0, cnp->cn_proc); - } - - if (cnp->cn_flags & MAKEENTRY) - cache_enter(dvp, *ap->a_vpp, cnp); - - return (error); -} - -#if defined(__FreeBSD__) -/* - * Flush the blocks of a file to disk. - * - * This function is worthless for vnodes that represent directories. Maybe we - * could just do a sync if they try an fsync on a directory file. - */ -static int -ntfs_fsync(ap) - struct vop_fsync_args /* { - struct vnode *a_vp; - struct ucred *a_cred; - int a_waitfor; - struct proc *a_p; - } */ *ap; -{ - return (0); -} -#endif - -/* - * Return POSIX pathconf information applicable to NTFS filesystem - */ -int -ntfs_pathconf(v) - void *v; -{ - struct vop_pathconf_args /* { - struct vnode *a_vp; - int a_name; - register_t *a_retval; - } */ *ap = v; - - switch (ap->a_name) { - case _PC_LINK_MAX: - *ap->a_retval = 1; - return (0); - case _PC_NAME_MAX: - *ap->a_retval = NTFS_MAXFILENAME; - return (0); - case _PC_PATH_MAX: - *ap->a_retval = PATH_MAX; - return (0); - case _PC_CHOWN_RESTRICTED: - *ap->a_retval = 1; - return (0); - case _PC_NO_TRUNC: - *ap->a_retval = 0; - return (0); -#if defined(__NetBSD__) - case _PC_SYNC_IO: - *ap->a_retval = 1; - return (0); - case _PC_FILESIZEBITS: - *ap->a_retval = 64; - return (0); -#endif - default: - return (EINVAL); - } - /* NOTREACHED */ -} - -/* - * Global vfs data structures - */ -vop_t **ntfs_vnodeop_p; -#if defined(__FreeBSD__) -static -struct vnodeopv_entry_desc ntfs_vnodeop_entries[] = { - { &vop_default_desc, (vop_t *)vop_defaultop }, - - { &vop_getattr_desc, (vop_t *)ntfs_getattr }, - { &vop_inactive_desc, (vop_t *)ntfs_inactive }, - { &vop_reclaim_desc, (vop_t *)ntfs_reclaim }, - { &vop_print_desc, (vop_t *)ntfs_print }, - { &vop_pathconf_desc, ntfs_pathconf }, - - { &vop_islocked_desc, (vop_t *)vop_stdislocked }, - { &vop_unlock_desc, (vop_t *)vop_stdunlock }, - { &vop_lock_desc, (vop_t *)vop_stdlock }, - { &vop_cachedlookup_desc, (vop_t *)ntfs_lookup }, - { &vop_lookup_desc, (vop_t *)vfs_cache_lookup }, - - { &vop_access_desc, (vop_t *)ntfs_access }, - { &vop_close_desc, (vop_t *)ntfs_close }, - { &vop_open_desc, (vop_t *)ntfs_open }, - { &vop_readdir_desc, (vop_t *)ntfs_readdir }, - { &vop_fsync_desc, (vop_t *)ntfs_fsync }, - - { &vop_strategy_desc, (vop_t *)ntfs_strategy }, - { &vop_read_desc, (vop_t *)ntfs_read }, - { &vop_write_desc, (vop_t *)ntfs_write }, - - { NULL, NULL } -}; - -static -struct vnodeopv_desc ntfs_vnodeop_opv_desc = - { &ntfs_vnodeop_p, ntfs_vnodeop_entries }; - -VNODEOP_SET(ntfs_vnodeop_opv_desc); - -#else /* !FreeBSD */ - -struct vnodeopv_entry_desc ntfs_vnodeop_entries[] = { - { &vop_default_desc, (vop_t *) ntfs_bypass }, - { &vop_lookup_desc, (vop_t *) ntfs_lookup }, /* lookup */ - { &vop_create_desc, genfs_eopnotsupp }, /* create */ - { &vop_mknod_desc, genfs_eopnotsupp }, /* mknod */ - { &vop_open_desc, (vop_t *) ntfs_open }, /* open */ - { &vop_close_desc,(vop_t *) ntfs_close }, /* close */ - { &vop_access_desc, (vop_t *) ntfs_access }, /* access */ - { &vop_getattr_desc, (vop_t *) ntfs_getattr }, /* getattr */ - { &vop_setattr_desc, genfs_eopnotsupp }, /* setattr */ - { &vop_read_desc, (vop_t *) ntfs_read }, /* read */ - { &vop_write_desc, (vop_t *) ntfs_write }, /* write */ - { &vop_lease_desc, genfs_lease_check }, /* lease */ - { &vop_fcntl_desc, genfs_fcntl }, /* fcntl */ - { &vop_ioctl_desc, genfs_enoioctl }, /* ioctl */ - { &vop_poll_desc, genfs_poll }, /* poll */ - { &vop_revoke_desc, genfs_revoke }, /* revoke */ - { &vop_fsync_desc, genfs_fsync }, /* fsync */ - { &vop_seek_desc, genfs_seek }, /* seek */ - { &vop_remove_desc, genfs_eopnotsupp }, /* remove */ - { &vop_link_desc, genfs_eopnotsupp }, /* link */ - { &vop_rename_desc, genfs_eopnotsupp }, /* rename */ - { &vop_mkdir_desc, genfs_eopnotsupp }, /* mkdir */ - { &vop_rmdir_desc, genfs_eopnotsupp }, /* rmdir */ - { &vop_symlink_desc, genfs_eopnotsupp }, /* symlink */ - { &vop_readdir_desc, (vop_t *) ntfs_readdir }, /* readdir */ - { &vop_readlink_desc, genfs_eopnotsupp }, /* readlink */ - { &vop_abortop_desc, genfs_abortop }, /* abortop */ - { &vop_inactive_desc, (vop_t *) ntfs_inactive }, /* inactive */ - { &vop_reclaim_desc, (vop_t *) ntfs_reclaim }, /* reclaim */ - { &vop_lock_desc, genfs_lock }, /* lock */ - { &vop_unlock_desc, genfs_unlock }, /* unlock */ - { &vop_bmap_desc, (vop_t *) ntfs_bmap }, /* bmap */ - { &vop_strategy_desc, (vop_t *) ntfs_strategy }, /* strategy */ - { &vop_print_desc, (vop_t *) ntfs_print }, /* print */ - { &vop_islocked_desc, genfs_islocked }, /* islocked */ - { &vop_pathconf_desc, ntfs_pathconf }, /* pathconf */ - { &vop_advlock_desc, genfs_nullop }, /* advlock */ - { &vop_blkatoff_desc, genfs_eopnotsupp }, /* blkatoff */ - { &vop_valloc_desc, genfs_eopnotsupp }, /* valloc */ - { &vop_reallocblks_desc, genfs_eopnotsupp }, /* reallocblks */ - { &vop_vfree_desc, genfs_eopnotsupp }, /* vfree */ - { &vop_truncate_desc, genfs_eopnotsupp }, /* truncate */ - { &vop_update_desc, genfs_eopnotsupp }, /* update */ - { &vop_bwrite_desc, vn_bwrite }, /* bwrite */ - { (struct vnodeop_desc *)NULL, (int (*) __P((void *)))NULL } -}; -struct vnodeopv_desc ntfs_vnodeop_opv_desc = - { &ntfs_vnodeop_p, ntfs_vnodeop_entries }; - -#endif |