/*- * Copyright (c) 1998, 1999 Semen Ustimenko (semenu@FreeBSD.org) * 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 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 AUTHOR 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 #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include /* for pathconf(2) constants */ #include #include #include #include static int hpfs_de_uiomove(struct hpfsmount *, struct hpfsdirent *, struct uio *); static vop_ioctl_t hpfs_ioctl; static vop_read_t hpfs_read; static vop_write_t hpfs_write; static vop_getattr_t hpfs_getattr; static vop_setattr_t hpfs_setattr; static vop_inactive_t hpfs_inactive; static vop_print_t hpfs_print; static vop_reclaim_t hpfs_reclaim; static vop_strategy_t hpfs_strategy; static vop_access_t hpfs_access; static vop_open_t hpfs_open; static vop_close_t hpfs_close; static vop_readdir_t hpfs_readdir; static vop_cachedlookup_t hpfs_lookup; static vop_create_t hpfs_create; static vop_remove_t hpfs_remove; static vop_bmap_t hpfs_bmap; static vop_fsync_t hpfs_fsync; static vop_pathconf_t hpfs_pathconf; static vop_vptofh_t hpfs_vptofh; static int hpfs_fsync(ap) struct vop_fsync_args /* { struct vnode *a_vp; struct ucred *a_cred; int a_waitfor; struct thread *a_td; } */ *ap; { /* * Flush our dirty buffers. */ vop_stdfsync(ap); /* * Write out the on-disc version of the vnode. */ return hpfs_update(VTOHP(ap->a_vp)); } static int hpfs_ioctl ( struct vop_ioctl_args /* { struct vnode *a_vp; u_long a_command; caddr_t a_data; int a_fflag; struct ucred *a_cred; struct thread *a_td; } */ *ap) { register struct vnode *vp = ap->a_vp; register struct hpfsnode *hp = VTOHP(vp); int error; printf("hpfs_ioctl(0x%x, 0x%lx, 0x%p, 0x%x): ", hp->h_no, ap->a_command, ap->a_data, ap->a_fflag); switch (ap->a_command) { case HPFSIOCGEANUM: { u_long eanum; u_long passed; struct ea *eap; eanum = 0; if (hp->h_fn.fn_ealen > 0) { eap = (struct ea *)&(hp->h_fn.fn_int); passed = 0; while (passed < hp->h_fn.fn_ealen) { printf("EAname: %s\n", EA_NAME(eap)); eanum++; passed += sizeof(struct ea) + eap->ea_namelen + 1 + eap->ea_vallen; eap = (struct ea *)((caddr_t)hp->h_fn.fn_int + passed); } error = 0; } else { error = ENOENT; } printf("%lu eas\n", eanum); *(u_long *)ap->a_data = eanum; break; } case HPFSIOCGEASZ: { u_long eanum; u_long passed; struct ea *eap; printf("EA%ld\n", *(u_long *)ap->a_data); eanum = 0; if (hp->h_fn.fn_ealen > 0) { eap = (struct ea *)&(hp->h_fn.fn_int); passed = 0; error = ENOENT; while (passed < hp->h_fn.fn_ealen) { printf("EAname: %s\n", EA_NAME(eap)); if (eanum == *(u_long *)ap->a_data) { *(u_long *)ap->a_data = eap->ea_namelen + 1 + eap->ea_vallen; error = 0; break; } eanum++; passed += sizeof(struct ea) + eap->ea_namelen + 1 + eap->ea_vallen; eap = (struct ea *)((caddr_t)hp->h_fn.fn_int + passed); } } else { error = ENOENT; } break; } case HPFSIOCRDEA: { u_long eanum; u_long passed; struct hpfs_rdea *rdeap; struct ea *eap; rdeap = (struct hpfs_rdea *)ap->a_data; printf("EA%ld\n", rdeap->ea_no); eanum = 0; if (hp->h_fn.fn_ealen > 0) { eap = (struct ea *)&(hp->h_fn.fn_int); passed = 0; error = ENOENT; while (passed < hp->h_fn.fn_ealen) { printf("EAname: %s\n", EA_NAME(eap)); if (eanum == rdeap->ea_no) { rdeap->ea_sz = eap->ea_namelen + 1 + eap->ea_vallen; copyout(EA_NAME(eap),rdeap->ea_data, rdeap->ea_sz); error = 0; break; } eanum++; passed += sizeof(struct ea) + eap->ea_namelen + 1 + eap->ea_vallen; eap = (struct ea *)((caddr_t)hp->h_fn.fn_int + passed); } } else { error = ENOENT; } break; } default: error = ENOTTY; break; } return (error); } /* * Map file offset to disk offset. */ int hpfs_bmap(ap) struct vop_bmap_args /* { struct vnode *a_vp; daddr_t a_bn; struct bufobj **a_bop; daddr_t *a_bnp; int *a_runp; int *a_runb; } */ *ap; { register struct hpfsnode *hp = VTOHP(ap->a_vp); daddr_t blkno; int error; if (ap->a_bop != NULL) *ap->a_bop = &hp->h_devvp->v_bufobj; if (ap->a_runb != NULL) *ap->a_runb = 0; if (ap->a_bnp == NULL) return (0); dprintf(("hpfs_bmap(0x%x, 0x%x): ",hp->h_no, ap->a_bn)); error = hpfs_hpbmap (hp, ap->a_bn, &blkno, ap->a_runp); *ap->a_bnp = blkno; return (error); } static int hpfs_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 hpfsnode *hp = VTOHP(vp); struct uio *uio = ap->a_uio; struct buf *bp; u_int xfersz, toread; u_int off; daddr_t lbn, bn; int resid; int runl; int error = 0; resid = min (uio->uio_resid, hp->h_fn.fn_size - uio->uio_offset); dprintf(("hpfs_read(0x%x, off: %d resid: %d, segflg: %d): [resid: 0x%x]\n",hp->h_no,(u_int32_t)uio->uio_offset,uio->uio_resid,uio->uio_segflg, resid)); while (resid) { lbn = uio->uio_offset >> DEV_BSHIFT; off = uio->uio_offset & (DEV_BSIZE - 1); dprintf(("hpfs_read: resid: 0x%x lbn: 0x%x off: 0x%x\n", uio->uio_resid, lbn, off)); error = hpfs_hpbmap(hp, lbn, &bn, &runl); if (error) return (error); toread = min(off + resid, min(DFLTPHYS, (runl+1)*DEV_BSIZE)); xfersz = (toread + DEV_BSIZE - 1) & ~(DEV_BSIZE - 1); dprintf(("hpfs_read: bn: 0x%x (0x%x) toread: 0x%x (0x%x)\n", bn, runl, toread, xfersz)); if (toread == 0) break; error = bread(hp->h_devvp, bn, xfersz, NOCRED, &bp); if (error) { brelse(bp); break; } error = uiomove(bp->b_data + off, toread - off, uio); if(error) { brelse(bp); break; } brelse(bp); resid -= toread; } dprintf(("hpfs_read: successful\n")); return (error); } static int hpfs_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 hpfsnode *hp = VTOHP(vp); struct uio *uio = ap->a_uio; struct buf *bp; u_int xfersz, towrite; u_int off; daddr_t lbn, bn; int runl; int error = 0; dprintf(("hpfs_write(0x%x, off: %d resid: %d, segflg: %d):\n",hp->h_no,(u_int32_t)uio->uio_offset,uio->uio_resid,uio->uio_segflg)); if (ap->a_ioflag & IO_APPEND) { dprintf(("hpfs_write: APPEND mode\n")); uio->uio_offset = hp->h_fn.fn_size; } if (uio->uio_offset + uio->uio_resid > hp->h_fn.fn_size) { error = hpfs_extend (hp, uio->uio_offset + uio->uio_resid); if (error) { printf("hpfs_write: hpfs_extend FAILED %d\n", error); return (error); } } while (uio->uio_resid) { lbn = uio->uio_offset >> DEV_BSHIFT; off = uio->uio_offset & (DEV_BSIZE - 1); dprintf(("hpfs_write: resid: 0x%x lbn: 0x%x off: 0x%x\n", uio->uio_resid, lbn, off)); error = hpfs_hpbmap(hp, lbn, &bn, &runl); if (error) return (error); towrite = min(off + uio->uio_resid, min(DFLTPHYS, (runl+1)*DEV_BSIZE)); xfersz = (towrite + DEV_BSIZE - 1) & ~(DEV_BSIZE - 1); dprintf(("hpfs_write: bn: 0x%x (0x%x) towrite: 0x%x (0x%x)\n", bn, runl, towrite, xfersz)); if ((off == 0) && (towrite == xfersz)) { bp = getblk(hp->h_devvp, bn, xfersz, 0, 0, 0); clrbuf(bp); } else { error = bread(hp->h_devvp, bn, xfersz, NOCRED, &bp); if (error) { brelse(bp); return (error); } } error = uiomove(bp->b_data + off, towrite - off, uio); if(error) { brelse(bp); return (error); } if (ap->a_ioflag & IO_SYNC) bwrite(bp); else bawrite(bp); } dprintf(("hpfs_write: successful\n")); return (0); } /* * XXXXX do we need hpfsnode locking inside? */ static int hpfs_getattr(ap) struct vop_getattr_args /* { struct vnode *a_vp; struct vattr *a_vap; struct ucred *a_cred; } */ *ap; { register struct vnode *vp = ap->a_vp; register struct hpfsnode *hp = VTOHP(vp); register struct vattr *vap = ap->a_vap; int error; dprintf(("hpfs_getattr(0x%x):\n", hp->h_no)); vap->va_fsid = dev2udev(hp->h_dev); vap->va_fileid = hp->h_no; vap->va_mode = hp->h_mode; vap->va_nlink = 1; vap->va_uid = hp->h_uid; vap->va_gid = hp->h_gid; vap->va_rdev = NODEV; vap->va_size = hp->h_fn.fn_size; vap->va_bytes = ((hp->h_fn.fn_size + DEV_BSIZE-1) & ~(DEV_BSIZE-1)) + DEV_BSIZE; if (!(hp->h_flag & H_PARVALID)) { error = hpfs_validateparent(hp); if (error) return (error); } vap->va_atime = hpfstimetounix(hp->h_atime); vap->va_mtime = hpfstimetounix(hp->h_mtime); vap->va_ctime = hpfstimetounix(hp->h_ctime); vap->va_flags = 0; vap->va_gen = 0; vap->va_blocksize = DEV_BSIZE; vap->va_type = vp->v_type; vap->va_filerev = 0; return (0); } /* * XXXXX do we need hpfsnode locking inside? */ static int hpfs_setattr(ap) struct vop_setattr_args /* { struct vnode *a_vp; struct vattr *a_vap; struct ucred *a_cred; } */ *ap; { struct vnode *vp = ap->a_vp; struct hpfsnode *hp = VTOHP(vp); struct vattr *vap = ap->a_vap; struct ucred *cred = ap->a_cred; struct thread *td = curthread; int error; dprintf(("hpfs_setattr(0x%x):\n", hp->h_no)); /* * Check for unsettable attributes. */ if ((vap->va_type != VNON) || (vap->va_nlink != VNOVAL) || (vap->va_fsid != VNOVAL) || (vap->va_fileid != VNOVAL) || (vap->va_blocksize != VNOVAL) || (vap->va_rdev != VNOVAL) || (vap->va_bytes != VNOVAL) || (vap->va_gen != VNOVAL)) { dprintf(("hpfs_setattr: changing nonsettable attr\n")); return (EINVAL); } /* Can't change flags XXX Could be implemented */ if (vap->va_flags != VNOVAL) { printf("hpfs_setattr: FLAGS CANNOT BE SET\n"); return (EINVAL); } /* Can't change uid/gid XXX Could be implemented */ if (vap->va_uid != (uid_t)VNOVAL || vap->va_gid != (gid_t)VNOVAL) { printf("hpfs_setattr: UID/GID CANNOT BE SET\n"); return (EINVAL); } /* Can't change mode XXX Could be implemented */ if (vap->va_mode != (mode_t)VNOVAL) { printf("hpfs_setattr: MODE CANNOT BE SET\n"); return (EINVAL); } /* Update times */ if (vap->va_atime.tv_sec != VNOVAL || vap->va_mtime.tv_sec != VNOVAL) { if (vp->v_mount->mnt_flag & MNT_RDONLY) return (EROFS); if (vap->va_vaflags & VA_UTIMES_NULL) { error = VOP_ACCESS(vp, VADMIN, cred, td); if (error) error = VOP_ACCESS(vp, VWRITE, cred, td); } else error = VOP_ACCESS(vp, VADMIN, cred, td); if (vap->va_atime.tv_sec != VNOVAL) hp->h_atime = vap->va_atime.tv_sec; if (vap->va_mtime.tv_sec != VNOVAL) hp->h_mtime = vap->va_mtime.tv_sec; hp->h_flag |= H_PARCHANGE; } if (vap->va_size != VNOVAL) { switch (vp->v_type) { case VDIR: return (EISDIR); case VREG: if (vp->v_mount->mnt_flag & MNT_RDONLY) return (EROFS); break; default: printf("hpfs_setattr: WRONG v_type\n"); return (EINVAL); } if (vap->va_size < hp->h_fn.fn_size) { error = vtruncbuf(vp, cred, td, vap->va_size, DEV_BSIZE); if (error) return (error); error = hpfs_truncate(hp, vap->va_size); if (error) return (error); } else if (vap->va_size > hp->h_fn.fn_size) { vnode_pager_setsize(vp, vap->va_size); error = hpfs_extend(hp, vap->va_size); if (error) return (error); } } return (0); } /* * Last reference to a node. If necessary, write or delete it. */ int hpfs_inactive(ap) struct vop_inactive_args /* { struct vnode *a_vp; } */ *ap; { register struct vnode *vp = ap->a_vp; register struct hpfsnode *hp = VTOHP(vp); int error; dprintf(("hpfs_inactive(0x%x): \n", hp->h_no)); if (hp->h_flag & H_CHANGE) { dprintf(("hpfs_inactive: node changed, update\n")); error = hpfs_update (hp); if (error) return (error); } if (hp->h_flag & H_PARCHANGE) { dprintf(("hpfs_inactive: parent node changed, update\n")); error = hpfs_updateparent (hp); if (error) return (error); } if (prtactive && vrefcnt(vp) != 0) vprint("hpfs_inactive: pushing active", vp); if (hp->h_flag & H_INVAL) { vrecycle(vp, ap->a_td); return (0); } return (0); } /* * Reclaim an inode so that it can be used for other purposes. */ int hpfs_reclaim(ap) struct vop_reclaim_args /* { struct vnode *a_vp; } */ *ap; { register struct vnode *vp = ap->a_vp; register struct hpfsnode *hp = VTOHP(vp); dprintf(("hpfs_reclaim(0x%x0): \n", hp->h_no)); /* * Destroy the vm object and flush associated pages. */ vnode_destroy_vobject(vp); vfs_hash_remove(vp); mtx_destroy(&hp->h_interlock); vp->v_data = NULL; free(hp, M_HPFSNO); return (0); } static int hpfs_print(ap) struct vop_print_args /* { struct vnode *a_vp; } */ *ap; { register struct vnode *vp = ap->a_vp; register struct hpfsnode *hp = VTOHP(vp); printf("\tino 0x%x\n", hp->h_no); return (0); } /* * Calculate the logical to physical mapping if not done already, * then call the device strategy routine. * * In order to be able to swap to a file, the hpfs_hpbmap operation may not * deadlock on memory. See hpfs_bmap() for details. XXXXXXX (not impl) */ int hpfs_strategy(ap) struct vop_strategy_args /* { struct buf *a_bp; } */ *ap; { register struct buf *bp = ap->a_bp; register struct vnode *vp = ap->a_vp; register struct hpfsnode *hp = VTOHP(ap->a_vp); daddr_t blkno; struct bufobj *bo; int error; dprintf(("hpfs_strategy(): \n")); if (vp->v_type == VBLK || vp->v_type == VCHR) panic("hpfs_strategy: spec"); if (bp->b_blkno == bp->b_lblkno) { error = hpfs_hpbmap (hp, bp->b_lblkno, &blkno, NULL); bp->b_blkno = blkno; if (error) { printf("hpfs_strategy: hpfs_bpbmap FAILED %d\n", error); bp->b_error = error; bp->b_ioflags |= BIO_ERROR; bufdone(bp); return (0); } if ((long)bp->b_blkno == -1) vfs_bio_clrbuf(bp); } if ((long)bp->b_blkno == -1) { bufdone(bp); return (0); } bp->b_iooffset = dbtob(bp->b_blkno); bo = hp->h_hpmp->hpm_bo; BO_STRATEGY(bo, bp); return (0); } /* * XXXXX do we need hpfsnode locking inside? */ int hpfs_access(ap) struct vop_access_args /* { struct vnode *a_vp; accmode_t a_accmode; struct ucred *a_cred; struct thread *a_td; } */ *ap; { struct vnode *vp = ap->a_vp; struct hpfsnode *hp = VTOHP(vp); accmode_t accmode = ap->a_accmode; dprintf(("hpfs_access(0x%x):\n", hp->h_no)); /* * Disallow write attempts on read-only filesystems; * unless the file is a socket, fifo, or a block or * character device resident on the filesystem. */ if (accmode & VWRITE) { switch ((int)vp->v_type) { case VDIR: case VLNK: case VREG: if (vp->v_mount->mnt_flag & MNT_RDONLY) return (EROFS); break; } } return (vaccess(vp->v_type, hp->h_mode, hp->h_uid, hp->h_gid, ap->a_accmode, ap->a_cred, NULL)); } /* * Open called. * * Nothing to do. */ /* ARGSUSED */ static int hpfs_open(ap) struct vop_open_args /* { struct vnode *a_vp; int a_mode; struct ucred *a_cred; struct thread *a_td; } */ *ap; { #ifdef HPFS_DEBUG register struct vnode *vp = ap->a_vp; register struct hpfsnode *hp = VTOHP(vp); printf("hpfs_open(0x%x):\n",hp->h_no); #endif /* * Files marked append-only must be opened for appending. */ return (0); } /* * Close called. * * Update the times on the inode. */ /* ARGSUSED */ static int hpfs_close(ap) struct vop_close_args /* { struct vnode *a_vp; int a_fflag; struct ucred *a_cred; struct thread *a_td; } */ *ap; { #ifdef HPFS_DEBUG register struct vnode *vp = ap->a_vp; register struct hpfsnode *hp = VTOHP(vp); printf("hpfs_close: %d\n",hp->h_no); #endif return (0); } static int hpfs_de_uiomove ( struct hpfsmount *hpmp, struct hpfsdirent *dep, struct uio *uio) { struct dirent cde; int i, error; dprintf(("[no: 0x%x, size: %d, name: %2d:%.*s, flag: 0x%x] ", dep->de_fnode, dep->de_size, dep->de_namelen, dep->de_namelen, dep->de_name, dep->de_flag)); /*strncpy(cde.d_name, dep->de_name, dep->de_namelen);*/ for (i=0; ide_namelen; i++) cde.d_name[i] = hpfs_d2u(hpmp, dep->de_name[i]); cde.d_name[dep->de_namelen] = '\0'; cde.d_namlen = dep->de_namelen; cde.d_fileno = dep->de_fnode; cde.d_type = (dep->de_flag & DE_DIR) ? DT_DIR : DT_REG; cde.d_reclen = sizeof(struct dirent); error = uiomove((char *)&cde, sizeof(struct dirent), uio); if (error) return (error); dprintf(("[0x%x] ", uio->uio_resid)); return (error); } static struct dirent hpfs_de_dot = { 0, sizeof(struct dirent), DT_DIR, 1, "." }; static struct dirent hpfs_de_dotdot = { 0, sizeof(struct dirent), DT_DIR, 2, ".." }; int hpfs_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 hpfsnode *hp = VTOHP(vp); struct hpfsmount *hpmp = hp->h_hpmp; struct uio *uio = ap->a_uio; int ncookies = 0, i, num, cnum; int error = 0; off_t off; struct buf *bp; struct dirblk *dp; struct hpfsdirent *dep; lsn_t olsn; lsn_t lsn; int level; dprintf(("hpfs_readdir(0x%x, 0x%x, 0x%x): ",hp->h_no,(u_int32_t)uio->uio_offset,uio->uio_resid)); off = uio->uio_offset; if( uio->uio_offset < sizeof(struct dirent) ) { dprintf((". faked, ")); hpfs_de_dot.d_fileno = hp->h_no; error = uiomove((char *)&hpfs_de_dot,sizeof(struct dirent),uio); if(error) { return (error); } ncookies ++; } if( uio->uio_offset < 2 * sizeof(struct dirent) ) { dprintf((".. faked, ")); hpfs_de_dotdot.d_fileno = hp->h_fn.fn_parent; error = uiomove((char *)&hpfs_de_dotdot, sizeof(struct dirent), uio); if(error) { return (error); } ncookies ++; } num = uio->uio_offset / sizeof(struct dirent) - 2; cnum = 0; lsn = ((alleaf_t *)hp->h_fn.fn_abd)->al_lsn; olsn = 0; level = 1; dive: dprintf(("[dive 0x%x] ", lsn)); error = bread(hp->h_devvp, lsn, D_BSIZE, NOCRED, &bp); if (error) { brelse(bp); return (error); } dp = (struct dirblk *) bp->b_data; if (dp->d_magic != D_MAGIC) { printf("hpfs_readdir: MAGIC DOESN'T MATCH\n"); brelse(bp); return (EINVAL); } dep = D_DIRENT(dp); if (olsn) { dprintf(("[restore 0x%x] ", olsn)); while(!(dep->de_flag & DE_END) ) { if((dep->de_flag & DE_DOWN) && (olsn == DE_DOWNLSN(dep))) break; dep = (hpfsdirent_t *)((caddr_t)dep + dep->de_reclen); } if((dep->de_flag & DE_DOWN) && (olsn == DE_DOWNLSN(dep))) { if (dep->de_flag & DE_END) goto blockdone; if (!(dep->de_flag & DE_SPECIAL)) { if (num <= cnum) { if (uio->uio_resid < sizeof(struct dirent)) { brelse(bp); dprintf(("[resid] ")); goto readdone; } error = hpfs_de_uiomove(hpmp, dep, uio); if (error) { brelse (bp); return (error); } ncookies++; if (uio->uio_resid < sizeof(struct dirent)) { brelse(bp); dprintf(("[resid] ")); goto readdone; } } cnum++; } dep = (hpfsdirent_t *)((caddr_t)dep + dep->de_reclen); } else { printf("hpfs_readdir: ERROR! oLSN not found\n"); brelse(bp); return (EINVAL); } } olsn = 0; while(!(dep->de_flag & DE_END)) { if(dep->de_flag & DE_DOWN) { lsn = DE_DOWNLSN(dep); brelse(bp); level++; goto dive; } if (!(dep->de_flag & DE_SPECIAL)) { if (num <= cnum) { if (uio->uio_resid < sizeof(struct dirent)) { brelse(bp); dprintf(("[resid] ")); goto readdone; } error = hpfs_de_uiomove(hpmp, dep, uio); if (error) { brelse (bp); return (error); } ncookies++; if (uio->uio_resid < sizeof(struct dirent)) { brelse(bp); dprintf(("[resid] ")); goto readdone; } } cnum++; } dep = (hpfsdirent_t *)((caddr_t)dep + dep->de_reclen); } if(dep->de_flag & DE_DOWN) { dprintf(("[enddive] ")); lsn = DE_DOWNLSN(dep); brelse(bp); level++; goto dive; } blockdone: dprintf(("[EOB] ")); olsn = lsn; lsn = dp->d_parent; brelse(bp); level--; dprintf(("[level %d] ", level)); if (level > 0) goto dive; /* undive really */ if (ap->a_eofflag) { dprintf(("[EOF] ")); *ap->a_eofflag = 1; } readdone: dprintf(("[readdone]\n")); if (!error && ap->a_ncookies != NULL) { struct dirent* dpStart; struct dirent* dp; u_long *cookies; u_long *cookiep; dprintf(("%d cookies, ",ncookies)); if (uio->uio_segflg != UIO_SYSSPACE || uio->uio_iovcnt != 1) panic("hpfs_readdir: unexpected uio from NFS server"); dpStart = (struct dirent *) ((caddr_t)uio->uio_iov->iov_base - (uio->uio_offset - off)); cookies = malloc(ncookies * sizeof(u_long), M_TEMP, M_WAITOK); 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; } return (0); } int hpfs_lookup(ap) struct vop_cachedlookup_args /* { struct vnode *a_dvp; struct vnode **a_vpp; struct componentname *a_cnp; } */ *ap; { register struct vnode *dvp = ap->a_dvp; register struct hpfsnode *dhp = VTOHP(dvp); struct hpfsmount *hpmp = dhp->h_hpmp; struct componentname *cnp = ap->a_cnp; struct ucred *cred = cnp->cn_cred; int error; int nameiop = cnp->cn_nameiop; int flags = cnp->cn_flags; dprintf(("hpfs_lookup(0x%x, %s, %ld):\n", dhp->h_no, cnp->cn_nameptr, cnp->cn_namelen)); if (nameiop != CREATE && nameiop != DELETE && nameiop != LOOKUP) { printf("hpfs_lookup: LOOKUP, DELETE and CREATE are only supported\n"); return (EOPNOTSUPP); } error = VOP_ACCESS(dvp, VEXEC, cred, cnp->cn_thread); if(error) return (error); if( (cnp->cn_namelen == 1) && !strncmp(cnp->cn_nameptr,".",1) ) { dprintf(("hpfs_lookup(0x%x,...): . faked\n",dhp->h_no)); VREF(dvp); *ap->a_vpp = dvp; return (0); } else if( (cnp->cn_namelen == 2) && !strncmp(cnp->cn_nameptr,"..",2) && (flags & ISDOTDOT) ) { dprintf(("hpfs_lookup(0x%x,...): .. faked (0x%x)\n", dhp->h_no, dhp->h_fn.fn_parent)); if (VFS_VGET(hpmp->hpm_mp, dhp->h_fn.fn_parent, LK_NOWAIT | LK_EXCLUSIVE, ap->a_vpp)) { VOP_UNLOCK(dvp,0); error = VFS_VGET(hpmp->hpm_mp, dhp->h_fn.fn_parent, LK_EXCLUSIVE, ap->a_vpp); vn_lock(dvp, LK_EXCLUSIVE|LK_RETRY); if (error) return(error); } return (0); } else { struct buf *bp; struct hpfsdirent *dep; struct hpfsnode *hp; error = hpfs_genlookupbyname(dhp, cnp->cn_nameptr, cnp->cn_namelen, &bp, &dep); if (error) { if ((error == ENOENT) && (flags & ISLASTCN) && (nameiop == CREATE || nameiop == RENAME)) { cnp->cn_flags |= SAVENAME; return (EJUSTRETURN); } return (error); } dprintf(("hpfs_lookup: fnode: 0x%x, CPID: 0x%x\n", dep->de_fnode, dep->de_cpid)); if (nameiop == DELETE && (flags & ISLASTCN)) { error = VOP_ACCESS(dvp, VWRITE, cred, cnp->cn_thread); if (error) { brelse(bp); return (error); } } if (dhp->h_no == dep->de_fnode) { brelse(bp); VREF(dvp); *ap->a_vpp = dvp; return (0); } error = VFS_VGET(hpmp->hpm_mp, dep->de_fnode, LK_EXCLUSIVE, ap->a_vpp); if (error) { printf("hpfs_lookup: VFS_VGET FAILED %d\n", error); brelse(bp); return(error); } hp = VTOHP(*ap->a_vpp); hp->h_mtime = dep->de_mtime; hp->h_ctime = dep->de_ctime; hp->h_atime = dep->de_atime; bcopy(dep->de_name, hp->h_name, dep->de_namelen); hp->h_name[dep->de_namelen] = '\0'; hp->h_namelen = dep->de_namelen; hp->h_flag |= H_PARVALID; brelse(bp); if ((flags & MAKEENTRY) && (!(flags & ISLASTCN) || (nameiop != DELETE && nameiop != CREATE))) cache_enter(dvp, *ap->a_vpp, cnp); } return (error); } int hpfs_remove(ap) struct vop_remove_args /* { struct vnode *a_dvp; struct vnode *a_vp; struct componentname *a_cnp; } */ *ap; { int error; dprintf(("hpfs_remove(0x%x, %s, %ld): \n", VTOHP(ap->a_vp)->h_no, ap->a_cnp->cn_nameptr, ap->a_cnp->cn_namelen)); if (ap->a_vp->v_type == VDIR) return (EPERM); error = hpfs_removefnode (ap->a_dvp, ap->a_vp, ap->a_cnp); return (error); } int hpfs_create(ap) struct vop_create_args /* { struct vnode *a_dvp; struct vnode **a_vpp; struct componentname *a_cnp; struct vattr *a_vap; } */ *ap; { int error; dprintf(("hpfs_create(0x%x, %s, %ld): \n", VTOHP(ap->a_dvp)->h_no, ap->a_cnp->cn_nameptr, ap->a_cnp->cn_namelen)); if (!(ap->a_cnp->cn_flags & HASBUF)) panic ("hpfs_create: no name\n"); error = hpfs_makefnode (ap->a_dvp, ap->a_vpp, ap->a_cnp, ap->a_vap); return (error); } /* * Return POSIX pathconf information applicable to NTFS filesystem */ int hpfs_pathconf(ap) struct vop_pathconf_args /* { struct vnode *a_vp; int a_name; register_t *a_retval; } */ *ap; { switch (ap->a_name) { case _PC_LINK_MAX: *ap->a_retval = 1; return (0); case _PC_NAME_MAX: *ap->a_retval = HPFS_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); default: return (EINVAL); } /* NOTREACHED */ } int hpfs_vptofh(ap) struct vop_vptofh_args /* { struct vnode *a_vp; struct fid *a_fhp; } */ *ap; { register struct hpfsnode *hpp; register struct hpfid *hpfhp; hpp = VTOHP(ap->a_vp); hpfhp = (struct hpfid *)ap->a_fhp; hpfhp->hpfid_len = sizeof(struct hpfid); hpfhp->hpfid_ino = hpp->h_no; /* hpfhp->hpfid_gen = hpp->h_gen; */ return (0); } /* * Global vfs data structures */ struct vop_vector hpfs_vnodeops = { .vop_default = &default_vnodeops, .vop_access = hpfs_access, .vop_bmap = hpfs_bmap, .vop_cachedlookup = hpfs_lookup, .vop_close = hpfs_close, .vop_create = hpfs_create, .vop_fsync = hpfs_fsync, .vop_getattr = hpfs_getattr, .vop_inactive = hpfs_inactive, .vop_ioctl = hpfs_ioctl, .vop_lookup = vfs_cache_lookup, .vop_open = hpfs_open, .vop_pathconf = hpfs_pathconf, .vop_print = hpfs_print, .vop_read = hpfs_read, .vop_readdir = hpfs_readdir, .vop_reclaim = hpfs_reclaim, .vop_remove = hpfs_remove, .vop_setattr = hpfs_setattr, .vop_strategy = hpfs_strategy, .vop_write = hpfs_write, .vop_vptofh = hpfs_vptofh, };