1*fca26c8fSmiod /* $OpenBSD: ntfs_subr.c,v 1.19 2010/08/06 00:00:41 miod Exp $ */ 226f3deacStedu /* $NetBSD: ntfs_subr.c,v 1.4 2003/04/10 21:37:32 jdolecek Exp $ */ 326f3deacStedu 426f3deacStedu /*- 526f3deacStedu * Copyright (c) 1998, 1999 Semen Ustimenko (semenu@FreeBSD.org) 626f3deacStedu * All rights reserved. 726f3deacStedu * 826f3deacStedu * Redistribution and use in source and binary forms, with or without 926f3deacStedu * modification, are permitted provided that the following conditions 1026f3deacStedu * are met: 1126f3deacStedu * 1. Redistributions of source code must retain the above copyright 1226f3deacStedu * notice, this list of conditions and the following disclaimer. 1326f3deacStedu * 2. Redistributions in binary form must reproduce the above copyright 1426f3deacStedu * notice, this list of conditions and the following disclaimer in the 1526f3deacStedu * documentation and/or other materials provided with the distribution. 1626f3deacStedu * 1726f3deacStedu * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 1826f3deacStedu * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1926f3deacStedu * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2026f3deacStedu * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 2126f3deacStedu * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2226f3deacStedu * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2326f3deacStedu * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2426f3deacStedu * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2526f3deacStedu * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2626f3deacStedu * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2726f3deacStedu * SUCH DAMAGE. 2826f3deacStedu * 2926f3deacStedu * Id: ntfs_subr.c,v 1.4 1999/05/12 09:43:01 semenu Exp 3026f3deacStedu */ 3126f3deacStedu 3226f3deacStedu #include <sys/param.h> 3326f3deacStedu #include <sys/systm.h> 3426f3deacStedu #include <sys/namei.h> 3526f3deacStedu #include <sys/proc.h> 3626f3deacStedu #include <sys/kernel.h> 3726f3deacStedu #include <sys/vnode.h> 3826f3deacStedu #include <sys/mount.h> 3926f3deacStedu #include <sys/buf.h> 4026f3deacStedu #include <sys/file.h> 4126f3deacStedu #include <sys/malloc.h> 42c74ceabfSoga #include <sys/rwlock.h> 4326f3deacStedu 4426f3deacStedu #include <miscfs/specfs/specdev.h> 4526f3deacStedu 4626f3deacStedu /* #define NTFS_DEBUG 1 */ 4726f3deacStedu #include <ntfs/ntfs.h> 4826f3deacStedu #include <ntfs/ntfsmount.h> 4926f3deacStedu #include <ntfs/ntfs_inode.h> 5026f3deacStedu #include <ntfs/ntfs_vfsops.h> 5126f3deacStedu #include <ntfs/ntfs_subr.h> 5226f3deacStedu #include <ntfs/ntfs_compr.h> 5326f3deacStedu #include <ntfs/ntfs_ihash.h> 5426f3deacStedu 5526f3deacStedu #if defined(NTFS_DEBUG) 5626f3deacStedu int ntfs_debug = NTFS_DEBUG; 5726f3deacStedu #endif 5826f3deacStedu 5926f3deacStedu #ifdef MALLOC_DEFINE 6026f3deacStedu MALLOC_DEFINE(M_NTFSNTVATTR, "NTFS vattr", "NTFS file attribute information"); 6126f3deacStedu MALLOC_DEFINE(M_NTFSRDATA, "NTFS res data", "NTFS resident data"); 6226f3deacStedu MALLOC_DEFINE(M_NTFSRUN, "NTFS vrun", "NTFS vrun storage"); 6326f3deacStedu MALLOC_DEFINE(M_NTFSDECOMP, "NTFS decomp", "NTFS decompression temporary"); 6426f3deacStedu #endif 6526f3deacStedu 6626f3deacStedu /* Local struct used in ntfs_ntlookupfile() */ 6726f3deacStedu struct ntfs_lookup_ctx { 6826f3deacStedu u_int32_t aoff; 6926f3deacStedu u_int32_t rdsize; 7026f3deacStedu cn_t cn; 7126f3deacStedu struct ntfs_lookup_ctx *prev; 7226f3deacStedu }; 7326f3deacStedu 7490337d88Stedu static int ntfs_ntlookupattr(struct ntfsmount *, const char *, int, int *, char **); 7590337d88Stedu static int ntfs_findvattr(struct ntfsmount *, struct ntnode *, struct ntvattr **, struct ntvattr **, u_int32_t, const char *, size_t, cn_t); 7690337d88Stedu static int ntfs_uastricmp(struct ntfsmount *, const wchar *, size_t, const char *, size_t); 7790337d88Stedu static int ntfs_uastrcmp(struct ntfsmount *, const wchar *, size_t, const char *, size_t); 7826f3deacStedu 7926f3deacStedu /* table for mapping Unicode chars into uppercase; it's filled upon first 8026f3deacStedu * ntfs mount, freed upon last ntfs umount */ 8126f3deacStedu static wchar *ntfs_toupper_tab; 8226f3deacStedu #define NTFS_U28(ch) ((((ch) & 0xE0) == 0) ? '_' : (ch) & 0xFF) 8326f3deacStedu #define NTFS_TOUPPER(ch) (ntfs_toupper_tab[(unsigned char)(ch)]) 84c74ceabfSoga struct rwlock ntfs_toupper_lock = RWLOCK_INITIALIZER("ntfs_toupper"); 8526f3deacStedu static signed int ntfs_toupper_usecount; 8626f3deacStedu 8726f3deacStedu /* support macro for ntfs_ntvattrget() */ 8826f3deacStedu #define NTFS_AALPCMP(aalp,type,name,namelen) ( \ 8926f3deacStedu (aalp->al_type == type) && (aalp->al_namelen == namelen) && \ 9026f3deacStedu !ntfs_uastrcmp(ntmp, aalp->al_name,aalp->al_namelen,name,namelen) ) 9126f3deacStedu 9226f3deacStedu /* 9326f3deacStedu * 9426f3deacStedu */ 9526f3deacStedu int 9626f3deacStedu ntfs_ntvattrrele(vap) 9726f3deacStedu struct ntvattr * vap; 9826f3deacStedu { 9926f3deacStedu dprintf(("ntfs_ntvattrrele: ino: %d, type: 0x%x\n", 10026f3deacStedu vap->va_ip->i_number, vap->va_type)); 10126f3deacStedu 10226f3deacStedu ntfs_ntrele(vap->va_ip); 10326f3deacStedu 10426f3deacStedu return (0); 10526f3deacStedu } 10626f3deacStedu 10726f3deacStedu /* 10826f3deacStedu * find the attribute in the ntnode 10926f3deacStedu */ 11026f3deacStedu static int 11126f3deacStedu ntfs_findvattr(ntmp, ip, lvapp, vapp, type, name, namelen, vcn) 11226f3deacStedu struct ntfsmount *ntmp; 11326f3deacStedu struct ntnode *ip; 11426f3deacStedu struct ntvattr **lvapp, **vapp; 11526f3deacStedu u_int32_t type; 11626f3deacStedu const char *name; 11726f3deacStedu size_t namelen; 11826f3deacStedu cn_t vcn; 11926f3deacStedu { 12026f3deacStedu int error; 12126f3deacStedu struct ntvattr *vap; 12226f3deacStedu 12326f3deacStedu if((ip->i_flag & IN_LOADED) == 0) { 12426f3deacStedu dprintf(("ntfs_findvattr: node not loaded, ino: %d\n", 12526f3deacStedu ip->i_number)); 12626f3deacStedu error = ntfs_loadntnode(ntmp,ip); 12726f3deacStedu if (error) { 12826f3deacStedu printf("ntfs_findvattr: FAILED TO LOAD INO: %d\n", 12926f3deacStedu ip->i_number); 13026f3deacStedu return (error); 13126f3deacStedu } 13226f3deacStedu } 13326f3deacStedu 13426f3deacStedu *lvapp = NULL; 13526f3deacStedu *vapp = NULL; 1361573508eSmiod LIST_FOREACH(vap, &ip->i_valist, va_list) { 13726f3deacStedu ddprintf(("ntfs_findvattr: type: 0x%x, vcn: %d - %d\n", \ 13826f3deacStedu vap->va_type, (u_int32_t) vap->va_vcnstart, \ 13926f3deacStedu (u_int32_t) vap->va_vcnend)); 14026f3deacStedu if ((vap->va_type == type) && 14126f3deacStedu (vap->va_vcnstart <= vcn) && (vap->va_vcnend >= vcn) && 14226f3deacStedu (vap->va_namelen == namelen) && 14326f3deacStedu (strncmp(name, vap->va_name, namelen) == 0)) { 14426f3deacStedu *vapp = vap; 14526f3deacStedu ntfs_ntref(vap->va_ip); 14626f3deacStedu return (0); 14726f3deacStedu } 14826f3deacStedu if (vap->va_type == NTFS_A_ATTRLIST) 14926f3deacStedu *lvapp = vap; 15026f3deacStedu } 15126f3deacStedu 15226f3deacStedu return (-1); 15326f3deacStedu } 15426f3deacStedu 15526f3deacStedu /* 15626f3deacStedu * Search attribute specified in ntnode (load ntnode if necessary). 15726f3deacStedu * If not found but ATTR_A_ATTRLIST present, read it in and search through. 15826f3deacStedu * VOP_VGET node needed, and lookup through its ntnode (load if nessesary). 15926f3deacStedu * 16026f3deacStedu * ntnode should be locked 16126f3deacStedu */ 16226f3deacStedu int 16326f3deacStedu ntfs_ntvattrget( 16426f3deacStedu struct ntfsmount * ntmp, 16526f3deacStedu struct ntnode * ip, 16626f3deacStedu u_int32_t type, 16726f3deacStedu const char *name, 16826f3deacStedu cn_t vcn, 16926f3deacStedu struct ntvattr ** vapp) 17026f3deacStedu { 17126f3deacStedu struct ntvattr *lvap = NULL; 17226f3deacStedu struct attr_attrlist *aalp; 17326f3deacStedu struct attr_attrlist *nextaalp; 17426f3deacStedu struct vnode *newvp; 17526f3deacStedu struct ntnode *newip; 17626f3deacStedu caddr_t alpool; 17726f3deacStedu size_t namelen, len; 17826f3deacStedu int error; 17926f3deacStedu 18026f3deacStedu *vapp = NULL; 18126f3deacStedu 18226f3deacStedu if (name) { 18326f3deacStedu dprintf(("ntfs_ntvattrget: " \ 18426f3deacStedu "ino: %d, type: 0x%x, name: %s, vcn: %d\n", \ 18526f3deacStedu ip->i_number, type, name, (u_int32_t) vcn)); 18626f3deacStedu namelen = strlen(name); 18726f3deacStedu } else { 18826f3deacStedu dprintf(("ntfs_ntvattrget: " \ 18926f3deacStedu "ino: %d, type: 0x%x, vcn: %d\n", \ 19026f3deacStedu ip->i_number, type, (u_int32_t) vcn)); 19126f3deacStedu name = ""; 19226f3deacStedu namelen = 0; 19326f3deacStedu } 19426f3deacStedu 19526f3deacStedu error = ntfs_findvattr(ntmp, ip, &lvap, vapp, type, name, namelen, vcn); 19626f3deacStedu if (error >= 0) 19726f3deacStedu return (error); 19826f3deacStedu 19926f3deacStedu if (!lvap) { 20026f3deacStedu dprintf(("ntfs_ntvattrget: UNEXISTED ATTRIBUTE: " \ 20126f3deacStedu "ino: %d, type: 0x%x, name: %s, vcn: %d\n", \ 20226f3deacStedu ip->i_number, type, name, (u_int32_t) vcn)); 20326f3deacStedu return (ENOENT); 20426f3deacStedu } 20526f3deacStedu /* Scan $ATTRIBUTE_LIST for requested attribute */ 20626f3deacStedu len = lvap->va_datalen; 20726f3deacStedu alpool = (caddr_t) malloc(len, M_TEMP, M_WAITOK); 20826f3deacStedu error = ntfs_readntvattr_plain(ntmp, ip, lvap, 0, len, alpool, &len, 20926f3deacStedu NULL); 21026f3deacStedu if (error) 21126f3deacStedu goto out; 21226f3deacStedu 21326f3deacStedu aalp = (struct attr_attrlist *) alpool; 21426f3deacStedu nextaalp = NULL; 21526f3deacStedu 21626f3deacStedu for(; len > 0; aalp = nextaalp) { 21726f3deacStedu dprintf(("ntfs_ntvattrget: " \ 21826f3deacStedu "attrlist: ino: %d, attr: 0x%x, vcn: %d\n", \ 21926f3deacStedu aalp->al_inumber, aalp->al_type, \ 22026f3deacStedu (u_int32_t) aalp->al_vcnstart)); 22126f3deacStedu 22226f3deacStedu if (len > aalp->reclen) { 22326f3deacStedu nextaalp = NTFS_NEXTREC(aalp, struct attr_attrlist *); 22426f3deacStedu } else { 22526f3deacStedu nextaalp = NULL; 22626f3deacStedu } 22726f3deacStedu len -= aalp->reclen; 22826f3deacStedu 22926f3deacStedu if (!NTFS_AALPCMP(aalp, type, name, namelen) || 23026f3deacStedu (nextaalp && (nextaalp->al_vcnstart <= vcn) && 23126f3deacStedu NTFS_AALPCMP(nextaalp, type, name, namelen))) 23226f3deacStedu continue; 23326f3deacStedu 23426f3deacStedu dprintf(("ntfs_ntvattrget: attribute in ino: %d\n", 23526f3deacStedu aalp->al_inumber)); 23626f3deacStedu 23726f3deacStedu /* this is not a main record, so we can't use just plain 23826f3deacStedu vget() */ 23926f3deacStedu error = ntfs_vgetex(ntmp->ntm_mountp, aalp->al_inumber, 24026f3deacStedu NTFS_A_DATA, NULL, LK_EXCLUSIVE, 24126f3deacStedu VG_EXT, curproc, &newvp); 24226f3deacStedu if (error) { 24326f3deacStedu printf("ntfs_ntvattrget: CAN'T VGET INO: %d\n", 24426f3deacStedu aalp->al_inumber); 24526f3deacStedu goto out; 24626f3deacStedu } 24726f3deacStedu newip = VTONT(newvp); 24826f3deacStedu /* XXX have to lock ntnode */ 24926f3deacStedu error = ntfs_findvattr(ntmp, newip, &lvap, vapp, 25026f3deacStedu type, name, namelen, vcn); 25126f3deacStedu vput(newvp); 25226f3deacStedu if (error == 0) 25326f3deacStedu goto out; 25426f3deacStedu printf("ntfs_ntvattrget: ATTRLIST ERROR.\n"); 25526f3deacStedu break; 25626f3deacStedu } 25726f3deacStedu error = ENOENT; 25826f3deacStedu 25926f3deacStedu dprintf(("ntfs_ntvattrget: UNEXISTED ATTRIBUTE: " \ 26026f3deacStedu "ino: %d, type: 0x%x, name: %.*s, vcn: %d\n", \ 26126f3deacStedu ip->i_number, type, (int) namelen, name, (u_int32_t) vcn)); 26226f3deacStedu out: 26326f3deacStedu free(alpool, M_TEMP); 26426f3deacStedu return (error); 26526f3deacStedu } 26626f3deacStedu 26726f3deacStedu /* 26826f3deacStedu * Read ntnode from disk, make ntvattr list. 26926f3deacStedu * 27026f3deacStedu * ntnode should be locked 27126f3deacStedu */ 27226f3deacStedu int 27326f3deacStedu ntfs_loadntnode( 27426f3deacStedu struct ntfsmount * ntmp, 27526f3deacStedu struct ntnode * ip) 27626f3deacStedu { 27726f3deacStedu struct filerec *mfrp; 278ce7d09aaSderaadt daddr64_t bn; 27926f3deacStedu int error,off; 28026f3deacStedu struct attr *ap; 28126f3deacStedu struct ntvattr *nvap; 28226f3deacStedu 28326f3deacStedu dprintf(("ntfs_loadntnode: loading ino: %d\n",ip->i_number)); 28426f3deacStedu 28526f3deacStedu mfrp = (struct filerec *) malloc(ntfs_bntob(ntmp->ntm_bpmftrec), 28626f3deacStedu M_TEMP, M_WAITOK); 28726f3deacStedu 28826f3deacStedu if (ip->i_number < NTFS_SYSNODESNUM) { 28926f3deacStedu struct buf *bp; 29026f3deacStedu 29126f3deacStedu dprintf(("ntfs_loadntnode: read system node\n")); 29226f3deacStedu 29326f3deacStedu bn = ntfs_cntobn(ntmp->ntm_mftcn) + 29426f3deacStedu ntmp->ntm_bpmftrec * ip->i_number; 29526f3deacStedu 29626f3deacStedu error = bread(ntmp->ntm_devvp, 29726f3deacStedu bn, ntfs_bntob(ntmp->ntm_bpmftrec), 29826f3deacStedu NOCRED, &bp); 29926f3deacStedu if (error) { 30026f3deacStedu printf("ntfs_loadntnode: BREAD FAILED\n"); 30126f3deacStedu brelse(bp); 30226f3deacStedu goto out; 30326f3deacStedu } 30426f3deacStedu memcpy(mfrp, bp->b_data, ntfs_bntob(ntmp->ntm_bpmftrec)); 30526f3deacStedu bqrelse(bp); 30626f3deacStedu } else { 30726f3deacStedu struct vnode *vp; 30826f3deacStedu 30926f3deacStedu vp = ntmp->ntm_sysvn[NTFS_MFTINO]; 31026f3deacStedu error = ntfs_readattr(ntmp, VTONT(vp), NTFS_A_DATA, NULL, 31126f3deacStedu ip->i_number * ntfs_bntob(ntmp->ntm_bpmftrec), 31226f3deacStedu ntfs_bntob(ntmp->ntm_bpmftrec), mfrp, NULL); 31326f3deacStedu if (error) { 31426f3deacStedu printf("ntfs_loadntnode: ntfs_readattr failed\n"); 31526f3deacStedu goto out; 31626f3deacStedu } 31726f3deacStedu } 31826f3deacStedu 31926f3deacStedu /* Check if magic and fixups are correct */ 32026f3deacStedu error = ntfs_procfixups(ntmp, NTFS_FILEMAGIC, (caddr_t)mfrp, 32126f3deacStedu ntfs_bntob(ntmp->ntm_bpmftrec)); 32226f3deacStedu if (error) { 32326f3deacStedu printf("ntfs_loadntnode: BAD MFT RECORD %d\n", 32426f3deacStedu (u_int32_t) ip->i_number); 32526f3deacStedu goto out; 32626f3deacStedu } 32726f3deacStedu 32826f3deacStedu dprintf(("ntfs_loadntnode: load attrs for ino: %d\n",ip->i_number)); 32926f3deacStedu off = mfrp->fr_attroff; 33026f3deacStedu ap = (struct attr *) ((caddr_t)mfrp + off); 33126f3deacStedu 33226f3deacStedu LIST_INIT(&ip->i_valist); 33326f3deacStedu 33426f3deacStedu while (ap->a_hdr.a_type != -1) { 33526f3deacStedu error = ntfs_attrtontvattr(ntmp, &nvap, ap); 33626f3deacStedu if (error) 33726f3deacStedu break; 33826f3deacStedu nvap->va_ip = ip; 33926f3deacStedu 34026f3deacStedu LIST_INSERT_HEAD(&ip->i_valist, nvap, va_list); 34126f3deacStedu 34226f3deacStedu off += ap->a_hdr.reclen; 34326f3deacStedu ap = (struct attr *) ((caddr_t)mfrp + off); 34426f3deacStedu } 34526f3deacStedu if (error) { 34626f3deacStedu printf("ntfs_loadntnode: failed to load attr ino: %d\n", 34726f3deacStedu ip->i_number); 34826f3deacStedu goto out; 34926f3deacStedu } 35026f3deacStedu 35126f3deacStedu ip->i_mainrec = mfrp->fr_mainrec; 35226f3deacStedu ip->i_nlink = mfrp->fr_nlink; 35326f3deacStedu ip->i_frflag = mfrp->fr_flags; 35426f3deacStedu 35526f3deacStedu ip->i_flag |= IN_LOADED; 35626f3deacStedu 35726f3deacStedu out: 35826f3deacStedu free(mfrp, M_TEMP); 35926f3deacStedu return (error); 36026f3deacStedu } 36126f3deacStedu 36226f3deacStedu /* 36326f3deacStedu * Routine locks ntnode and increase usecount, just opposite of 36426f3deacStedu * ntfs_ntput(). 36526f3deacStedu */ 36626f3deacStedu int 36726f3deacStedu ntfs_ntget( 36826f3deacStedu struct ntnode *ip, 36926f3deacStedu struct proc *p 37026f3deacStedu ) 37126f3deacStedu { 37226f3deacStedu dprintf(("ntfs_ntget: get ntnode %d: %p, usecount: %d\n", 37326f3deacStedu ip->i_number, ip, ip->i_usecount)); 37426f3deacStedu 37526f3deacStedu ip->i_usecount++; 3762752fedbSpedro 377c74ceabfSoga rw_enter_write(&ip->i_lock); 37826f3deacStedu 37926f3deacStedu return 0; 38026f3deacStedu } 38126f3deacStedu 38226f3deacStedu /* 38326f3deacStedu * Routine search ntnode in hash, if found: lock, inc usecount and return. 38426f3deacStedu * If not in hash allocate structure for ntnode, prefill it, lock, 38526f3deacStedu * inc count and return. 38626f3deacStedu * 38726f3deacStedu * ntnode returned locked 38826f3deacStedu */ 38926f3deacStedu int 39026f3deacStedu ntfs_ntlookup( 39126f3deacStedu struct ntfsmount * ntmp, 39226f3deacStedu ino_t ino, 39326f3deacStedu struct ntnode ** ipp, 39426f3deacStedu struct proc * p) 39526f3deacStedu { 39626f3deacStedu struct ntnode *ip; 39726f3deacStedu 39826f3deacStedu dprintf(("ntfs_ntlookup: looking for ntnode %d\n", ino)); 39926f3deacStedu 40026f3deacStedu do { 40126f3deacStedu if ((ip = ntfs_nthashlookup(ntmp->ntm_dev, ino)) != NULL) { 40226f3deacStedu ntfs_ntget(ip, p); 40326f3deacStedu dprintf(("ntfs_ntlookup: ntnode %d: %p, usecount: %d\n", 40426f3deacStedu ino, ip, ip->i_usecount)); 40526f3deacStedu *ipp = ip; 40626f3deacStedu return (0); 40726f3deacStedu } 408c74ceabfSoga } while (rw_enter(&ntfs_hashlock, RW_WRITE | RW_SLEEPFAIL)); 40926f3deacStedu 410c86f0003Skrw ip = malloc(sizeof(*ip), M_NTFSNTNODE, M_WAITOK | M_ZERO); 41126f3deacStedu ddprintf(("ntfs_ntlookup: allocating ntnode: %d: %p\n", ino, ip)); 41226f3deacStedu 41326f3deacStedu /* Generic initialization */ 41426f3deacStedu ip->i_devvp = ntmp->ntm_devvp; 41526f3deacStedu ip->i_dev = ntmp->ntm_dev; 41626f3deacStedu ip->i_number = ino; 41726f3deacStedu ip->i_mp = ntmp; 41826f3deacStedu 41926f3deacStedu LIST_INIT(&ip->i_fnlist); 420627b2c48Sthib vref(ip->i_devvp); 42126f3deacStedu 42226f3deacStedu /* init lock and lock the newborn ntnode */ 423c74ceabfSoga rw_init(&ip->i_lock, "ntnode"); 42426f3deacStedu ntfs_ntget(ip, p); 42526f3deacStedu 42626f3deacStedu ntfs_nthashins(ip); 42726f3deacStedu 428c74ceabfSoga rw_exit(&ntfs_hashlock); 42926f3deacStedu 43026f3deacStedu *ipp = ip; 43126f3deacStedu 43226f3deacStedu dprintf(("ntfs_ntlookup: ntnode %d: %p, usecount: %d\n", 43326f3deacStedu ino, ip, ip->i_usecount)); 43426f3deacStedu 43526f3deacStedu return (0); 43626f3deacStedu } 43726f3deacStedu 43826f3deacStedu /* 43926f3deacStedu * Decrement usecount of ntnode and unlock it, if usecount reach zero, 44026f3deacStedu * deallocate ntnode. 44126f3deacStedu * 44226f3deacStedu * ntnode should be locked on entry, and unlocked on return. 44326f3deacStedu */ 44426f3deacStedu void 44526f3deacStedu ntfs_ntput( 44626f3deacStedu struct ntnode *ip, 44726f3deacStedu struct proc *p 44826f3deacStedu ) 44926f3deacStedu { 45026f3deacStedu struct ntvattr *vap; 45126f3deacStedu 45226f3deacStedu dprintf(("ntfs_ntput: rele ntnode %d: %p, usecount: %d\n", 45326f3deacStedu ip->i_number, ip, ip->i_usecount)); 45426f3deacStedu 45526f3deacStedu ip->i_usecount--; 45626f3deacStedu 45726f3deacStedu #ifdef DIAGNOSTIC 45826f3deacStedu if (ip->i_usecount < 0) { 45926f3deacStedu panic("ntfs_ntput: ino: %d usecount: %d ", 46026f3deacStedu ip->i_number,ip->i_usecount); 46126f3deacStedu } 46226f3deacStedu #endif 46326f3deacStedu 4649b32ea3cSpat if (ip->i_usecount > 0) { 465c74ceabfSoga rw_exit_write(&ip->i_lock); 4669b32ea3cSpat return; 4679b32ea3cSpat } 46826f3deacStedu 4699b32ea3cSpat dprintf(("ntfs_ntput: deallocating ntnode: %d\n", ip->i_number)); 47026f3deacStedu 4719b32ea3cSpat if (LIST_FIRST(&ip->i_fnlist)) 47226f3deacStedu panic("ntfs_ntput: ntnode has fnodes"); 47326f3deacStedu 47426f3deacStedu ntfs_nthashrem(ip); 47526f3deacStedu 4769b32ea3cSpat while ((vap = LIST_FIRST(&ip->i_valist)) != NULL) { 47726f3deacStedu LIST_REMOVE(vap, va_list); 47826f3deacStedu ntfs_freentvattr(vap); 47926f3deacStedu } 4809b32ea3cSpat 4819b32ea3cSpat vrele(ip->i_devvp); 4822f33a180Skrw free(ip, M_NTFSNTNODE); 48326f3deacStedu } 48426f3deacStedu 48526f3deacStedu /* 48626f3deacStedu * increment usecount of ntnode 48726f3deacStedu */ 48826f3deacStedu void 48926f3deacStedu ntfs_ntref(ip) 49026f3deacStedu struct ntnode *ip; 49126f3deacStedu { 49226f3deacStedu ip->i_usecount++; 49326f3deacStedu 49426f3deacStedu dprintf(("ntfs_ntref: ino %d, usecount: %d\n", 49526f3deacStedu ip->i_number, ip->i_usecount)); 49626f3deacStedu 49726f3deacStedu } 49826f3deacStedu 49926f3deacStedu /* 50026f3deacStedu * Decrement usecount of ntnode. 50126f3deacStedu */ 50226f3deacStedu void 50326f3deacStedu ntfs_ntrele(ip) 50426f3deacStedu struct ntnode *ip; 50526f3deacStedu { 50626f3deacStedu dprintf(("ntfs_ntrele: rele ntnode %d: %p, usecount: %d\n", 50726f3deacStedu ip->i_number, ip, ip->i_usecount)); 50826f3deacStedu 50926f3deacStedu ip->i_usecount--; 51026f3deacStedu 51126f3deacStedu if (ip->i_usecount < 0) 51226f3deacStedu panic("ntfs_ntrele: ino: %d usecount: %d ", 51326f3deacStedu ip->i_number,ip->i_usecount); 51426f3deacStedu } 51526f3deacStedu 51626f3deacStedu /* 51726f3deacStedu * Deallocate all memory allocated for ntvattr 51826f3deacStedu */ 51926f3deacStedu void 52026f3deacStedu ntfs_freentvattr(vap) 52126f3deacStedu struct ntvattr * vap; 52226f3deacStedu { 52326f3deacStedu if (vap->va_flag & NTFS_AF_INRUN) { 52426f3deacStedu if (vap->va_vruncn) 52526f3deacStedu free(vap->va_vruncn, M_NTFSRUN); 52626f3deacStedu if (vap->va_vruncl) 52726f3deacStedu free(vap->va_vruncl, M_NTFSRUN); 52826f3deacStedu } else { 52926f3deacStedu if (vap->va_datap) 53026f3deacStedu free(vap->va_datap, M_NTFSRDATA); 53126f3deacStedu } 5322f33a180Skrw free(vap, M_NTFSNTVATTR); 53326f3deacStedu } 53426f3deacStedu 53526f3deacStedu /* 53626f3deacStedu * Convert disk image of attribute into ntvattr structure, 53726f3deacStedu * runs are expanded also. 53826f3deacStedu */ 53926f3deacStedu int 54026f3deacStedu ntfs_attrtontvattr( 54126f3deacStedu struct ntfsmount * ntmp, 54226f3deacStedu struct ntvattr ** rvapp, 54326f3deacStedu struct attr * rap) 54426f3deacStedu { 54526f3deacStedu int error, i; 54626f3deacStedu struct ntvattr *vap; 54726f3deacStedu 54826f3deacStedu error = 0; 54926f3deacStedu *rvapp = NULL; 55026f3deacStedu 551c86f0003Skrw vap = malloc(sizeof(*vap), M_NTFSNTVATTR, M_WAITOK | M_ZERO); 55226f3deacStedu vap->va_ip = NULL; 55326f3deacStedu vap->va_flag = rap->a_hdr.a_flag; 55426f3deacStedu vap->va_type = rap->a_hdr.a_type; 55526f3deacStedu vap->va_compression = rap->a_hdr.a_compression; 55626f3deacStedu vap->va_index = rap->a_hdr.a_index; 55726f3deacStedu 55826f3deacStedu ddprintf(("type: 0x%x, index: %d", vap->va_type, vap->va_index)); 55926f3deacStedu 56026f3deacStedu vap->va_namelen = rap->a_hdr.a_namelen; 56126f3deacStedu if (rap->a_hdr.a_namelen) { 56226f3deacStedu wchar *unp = (wchar *) ((caddr_t) rap + rap->a_hdr.a_nameoff); 56326f3deacStedu ddprintf((", name:[")); 56426f3deacStedu for (i = 0; i < vap->va_namelen; i++) { 56526f3deacStedu vap->va_name[i] = unp[i]; 56626f3deacStedu ddprintf(("%c", vap->va_name[i])); 56726f3deacStedu } 56826f3deacStedu ddprintf(("]")); 56926f3deacStedu } 57026f3deacStedu if (vap->va_flag & NTFS_AF_INRUN) { 57126f3deacStedu ddprintf((", nonres.")); 57226f3deacStedu vap->va_datalen = rap->a_nr.a_datalen; 57326f3deacStedu vap->va_allocated = rap->a_nr.a_allocated; 57426f3deacStedu vap->va_vcnstart = rap->a_nr.a_vcnstart; 57526f3deacStedu vap->va_vcnend = rap->a_nr.a_vcnend; 57626f3deacStedu vap->va_compressalg = rap->a_nr.a_compressalg; 57726f3deacStedu error = ntfs_runtovrun(&(vap->va_vruncn), &(vap->va_vruncl), 57826f3deacStedu &(vap->va_vruncnt), 57926f3deacStedu (caddr_t) rap + rap->a_nr.a_dataoff); 58026f3deacStedu } else { 58126f3deacStedu vap->va_compressalg = 0; 58226f3deacStedu ddprintf((", res.")); 58326f3deacStedu vap->va_datalen = rap->a_r.a_datalen; 58426f3deacStedu vap->va_allocated = rap->a_r.a_datalen; 58526f3deacStedu vap->va_vcnstart = 0; 58626f3deacStedu vap->va_vcnend = ntfs_btocn(vap->va_allocated); 58726f3deacStedu vap->va_datap = (caddr_t) malloc(vap->va_datalen, 58826f3deacStedu M_NTFSRDATA, M_WAITOK); 58926f3deacStedu memcpy(vap->va_datap, (caddr_t) rap + rap->a_r.a_dataoff, 59026f3deacStedu rap->a_r.a_datalen); 59126f3deacStedu } 59226f3deacStedu ddprintf((", len: %d", vap->va_datalen)); 59326f3deacStedu 59426f3deacStedu if (error) 5952f33a180Skrw free(vap, M_NTFSNTVATTR); 59626f3deacStedu else 59726f3deacStedu *rvapp = vap; 59826f3deacStedu 59926f3deacStedu ddprintf(("\n")); 60026f3deacStedu 60126f3deacStedu return (error); 60226f3deacStedu } 60326f3deacStedu 60426f3deacStedu /* 60526f3deacStedu * Expand run into more utilizable and more memory eating format. 60626f3deacStedu */ 60726f3deacStedu int 60826f3deacStedu ntfs_runtovrun( 60926f3deacStedu cn_t ** rcnp, 61026f3deacStedu cn_t ** rclp, 61126f3deacStedu u_long * rcntp, 61226f3deacStedu u_int8_t * run) 61326f3deacStedu { 61426f3deacStedu u_int32_t off; 61526f3deacStedu u_int32_t sz, i; 61626f3deacStedu cn_t *cn; 61726f3deacStedu cn_t *cl; 61826f3deacStedu u_long cnt; 61926f3deacStedu cn_t prev; 62026f3deacStedu cn_t tmp; 62126f3deacStedu 62226f3deacStedu off = 0; 62326f3deacStedu cnt = 0; 62426f3deacStedu i = 0; 62526f3deacStedu while (run[off]) { 62626f3deacStedu off += (run[off] & 0xF) + ((run[off] >> 4) & 0xF) + 1; 62726f3deacStedu cnt++; 62826f3deacStedu } 62926f3deacStedu cn = (cn_t *) malloc(cnt * sizeof(cn_t), M_NTFSRUN, M_WAITOK); 63026f3deacStedu cl = (cn_t *) malloc(cnt * sizeof(cn_t), M_NTFSRUN, M_WAITOK); 63126f3deacStedu 63226f3deacStedu off = 0; 63326f3deacStedu cnt = 0; 63426f3deacStedu prev = 0; 63526f3deacStedu while (run[off]) { 63626f3deacStedu 63726f3deacStedu sz = run[off++]; 63826f3deacStedu cl[cnt] = 0; 63926f3deacStedu 64026f3deacStedu for (i = 0; i < (sz & 0xF); i++) 64126f3deacStedu cl[cnt] += (u_int32_t) run[off++] << (i << 3); 64226f3deacStedu 64326f3deacStedu sz >>= 4; 64426f3deacStedu if (run[off + sz - 1] & 0x80) { 64526f3deacStedu tmp = ((u_int64_t) - 1) << (sz << 3); 64626f3deacStedu for (i = 0; i < sz; i++) 64726f3deacStedu tmp |= (u_int64_t) run[off++] << (i << 3); 64826f3deacStedu } else { 64926f3deacStedu tmp = 0; 65026f3deacStedu for (i = 0; i < sz; i++) 65126f3deacStedu tmp |= (u_int64_t) run[off++] << (i << 3); 65226f3deacStedu } 65326f3deacStedu if (tmp) 65426f3deacStedu prev = cn[cnt] = prev + tmp; 65526f3deacStedu else 65626f3deacStedu cn[cnt] = tmp; 65726f3deacStedu 65826f3deacStedu cnt++; 65926f3deacStedu } 66026f3deacStedu *rcnp = cn; 66126f3deacStedu *rclp = cl; 66226f3deacStedu *rcntp = cnt; 66326f3deacStedu return (0); 66426f3deacStedu } 66526f3deacStedu 66626f3deacStedu /* 66726f3deacStedu * Compare unicode and ascii string case insens. 66826f3deacStedu */ 66926f3deacStedu static int 67026f3deacStedu ntfs_uastricmp(ntmp, ustr, ustrlen, astr, astrlen) 67126f3deacStedu struct ntfsmount *ntmp; 67226f3deacStedu const wchar *ustr; 67326f3deacStedu size_t ustrlen; 67426f3deacStedu const char *astr; 67526f3deacStedu size_t astrlen; 67626f3deacStedu { 67726f3deacStedu size_t i; 67826f3deacStedu int res; 67926f3deacStedu const char *astrend = astr + astrlen; 68026f3deacStedu 68126f3deacStedu for (i = 0; i < ustrlen && astr < astrend; i++) { 68226f3deacStedu res = (*ntmp->ntm_wcmp)(NTFS_TOUPPER(ustr[i]), 68326f3deacStedu NTFS_TOUPPER((*ntmp->ntm_wget)(&astr)) ); 68426f3deacStedu if (res) 68526f3deacStedu return res; 68626f3deacStedu } 68726f3deacStedu 68826f3deacStedu if (i == ustrlen && astr == astrend) 68926f3deacStedu return 0; 69026f3deacStedu else if (i == ustrlen) 69126f3deacStedu return -1; 69226f3deacStedu else 69326f3deacStedu return 1; 69426f3deacStedu } 69526f3deacStedu 69626f3deacStedu /* 69726f3deacStedu * Compare unicode and ascii string case sens. 69826f3deacStedu */ 69926f3deacStedu static int 70026f3deacStedu ntfs_uastrcmp(ntmp, ustr, ustrlen, astr, astrlen) 70126f3deacStedu struct ntfsmount *ntmp; 70226f3deacStedu const wchar *ustr; 70326f3deacStedu size_t ustrlen; 70426f3deacStedu const char *astr; 70526f3deacStedu size_t astrlen; 70626f3deacStedu { 70726f3deacStedu size_t i; 70826f3deacStedu int res; 70926f3deacStedu const char *astrend = astr + astrlen; 71026f3deacStedu 71126f3deacStedu for (i = 0; (i < ustrlen) && (astr < astrend); i++) { 71226f3deacStedu res = (*ntmp->ntm_wcmp)(ustr[i], (*ntmp->ntm_wget)(&astr)); 71326f3deacStedu if (res) 71426f3deacStedu return res; 71526f3deacStedu } 71626f3deacStedu 71726f3deacStedu if (i == ustrlen && astr == astrend) 71826f3deacStedu return 0; 71926f3deacStedu else if (i == ustrlen) 72026f3deacStedu return -1; 72126f3deacStedu else 72226f3deacStedu return 1; 72326f3deacStedu } 72426f3deacStedu 72526f3deacStedu /* 72626f3deacStedu * Search fnode in ntnode, if not found allocate and preinitialize. 72726f3deacStedu * 72826f3deacStedu * ntnode should be locked on entry. 72926f3deacStedu */ 73026f3deacStedu int 73126f3deacStedu ntfs_fget( 73226f3deacStedu struct ntfsmount *ntmp, 73326f3deacStedu struct ntnode *ip, 73426f3deacStedu int attrtype, 73526f3deacStedu char *attrname, 73626f3deacStedu struct fnode **fpp) 73726f3deacStedu { 73826f3deacStedu struct fnode *fp; 73926f3deacStedu 74026f3deacStedu dprintf(("ntfs_fget: ino: %d, attrtype: 0x%x, attrname: %s\n", 74126f3deacStedu ip->i_number,attrtype, attrname?attrname:"")); 74226f3deacStedu *fpp = NULL; 7431573508eSmiod LIST_FOREACH(fp, &ip->i_fnlist, f_fnlist) { 74426f3deacStedu dprintf(("ntfs_fget: fnode: attrtype: %d, attrname: %s\n", 74526f3deacStedu fp->f_attrtype, fp->f_attrname?fp->f_attrname:"")); 74626f3deacStedu 74726f3deacStedu if ((attrtype == fp->f_attrtype) && 74826f3deacStedu ((!attrname && !fp->f_attrname) || 74926f3deacStedu (attrname && fp->f_attrname && 75026f3deacStedu !strcmp(attrname,fp->f_attrname)))){ 75126f3deacStedu dprintf(("ntfs_fget: found existed: %p\n",fp)); 75226f3deacStedu *fpp = fp; 75326f3deacStedu } 75426f3deacStedu } 75526f3deacStedu 75626f3deacStedu if (*fpp) 75726f3deacStedu return (0); 75826f3deacStedu 759c86f0003Skrw fp = malloc(sizeof(*fp), M_NTFSFNODE, M_WAITOK | M_ZERO); 76026f3deacStedu dprintf(("ntfs_fget: allocating fnode: %p\n",fp)); 76126f3deacStedu 76226f3deacStedu fp->f_ip = ip; 76326f3deacStedu fp->f_attrname = attrname; 76426f3deacStedu if (fp->f_attrname) fp->f_flag |= FN_AATTRNAME; 76526f3deacStedu fp->f_attrtype = attrtype; 76626f3deacStedu 76726f3deacStedu ntfs_ntref(ip); 76826f3deacStedu 76926f3deacStedu LIST_INSERT_HEAD(&ip->i_fnlist, fp, f_fnlist); 77026f3deacStedu 77126f3deacStedu *fpp = fp; 77226f3deacStedu 77326f3deacStedu return (0); 77426f3deacStedu } 77526f3deacStedu 77626f3deacStedu /* 77726f3deacStedu * Deallocate fnode, remove it from ntnode's fnode list. 77826f3deacStedu * 77926f3deacStedu * ntnode should be locked. 78026f3deacStedu */ 78126f3deacStedu void 78226f3deacStedu ntfs_frele( 78326f3deacStedu struct fnode *fp) 78426f3deacStedu { 78526f3deacStedu struct ntnode *ip = FTONT(fp); 78626f3deacStedu 78726f3deacStedu dprintf(("ntfs_frele: fnode: %p for %d: %p\n", fp, ip->i_number, ip)); 78826f3deacStedu 78926f3deacStedu dprintf(("ntfs_frele: deallocating fnode\n")); 79026f3deacStedu LIST_REMOVE(fp,f_fnlist); 79126f3deacStedu if (fp->f_flag & FN_AATTRNAME) 792e8821f89Shshoexer free(fp->f_attrname, M_TEMP); 79326f3deacStedu if (fp->f_dirblbuf) 794e8821f89Shshoexer free(fp->f_dirblbuf, M_NTFSDIR); 7952f33a180Skrw free(fp, M_NTFSFNODE); 79626f3deacStedu ntfs_ntrele(ip); 79726f3deacStedu } 79826f3deacStedu 79926f3deacStedu /* 80026f3deacStedu * Lookup attribute name in format: [[:$ATTR_TYPE]:$ATTR_NAME], 80126f3deacStedu * $ATTR_TYPE is searched in attrdefs read from $AttrDefs. 80226f3deacStedu * If $ATTR_TYPE not specified, ATTR_A_DATA assumed. 80326f3deacStedu */ 80426f3deacStedu static int 80526f3deacStedu ntfs_ntlookupattr( 80626f3deacStedu struct ntfsmount * ntmp, 80726f3deacStedu const char * name, 80826f3deacStedu int namelen, 80926f3deacStedu int *attrtype, 81026f3deacStedu char **attrname) 81126f3deacStedu { 81226f3deacStedu const char *sys; 81326f3deacStedu size_t syslen, i; 81426f3deacStedu struct ntvattrdef *adp; 81526f3deacStedu 81626f3deacStedu if (namelen == 0) 81726f3deacStedu return (0); 81826f3deacStedu 81926f3deacStedu if (name[0] == '$') { 82026f3deacStedu sys = name; 82126f3deacStedu for (syslen = 0; syslen < namelen; syslen++) { 82226f3deacStedu if(sys[syslen] == ':') { 82326f3deacStedu name++; 82426f3deacStedu namelen--; 82526f3deacStedu break; 82626f3deacStedu } 82726f3deacStedu } 82826f3deacStedu name += syslen; 82926f3deacStedu namelen -= syslen; 83026f3deacStedu 83126f3deacStedu adp = ntmp->ntm_ad; 83226f3deacStedu for (i = 0; i < ntmp->ntm_adnum; i++, adp++){ 83326f3deacStedu if (syslen != adp->ad_namelen || 83426f3deacStedu strncmp(sys, adp->ad_name, syslen) != 0) 83526f3deacStedu continue; 83626f3deacStedu 83726f3deacStedu *attrtype = adp->ad_type; 83826f3deacStedu goto out; 83926f3deacStedu } 84026f3deacStedu return (ENOENT); 84126f3deacStedu } 84226f3deacStedu 84326f3deacStedu out: 84426f3deacStedu if (namelen) { 84526f3deacStedu *attrname = (char *) malloc(namelen, M_TEMP, M_WAITOK); 84626f3deacStedu memcpy((*attrname), name, namelen); 84726f3deacStedu (*attrname)[namelen] = '\0'; 84826f3deacStedu *attrtype = NTFS_A_DATA; 84926f3deacStedu } 85026f3deacStedu 85126f3deacStedu return (0); 85226f3deacStedu } 85326f3deacStedu 85426f3deacStedu /* 85526f3deacStedu * Lookup specified node for filename, matching cnp, 85626f3deacStedu * return fnode filled. 85726f3deacStedu */ 85826f3deacStedu int 85926f3deacStedu ntfs_ntlookupfile( 86026f3deacStedu struct ntfsmount * ntmp, 86126f3deacStedu struct vnode * vp, 86226f3deacStedu struct componentname * cnp, 86326f3deacStedu struct vnode ** vpp, 86426f3deacStedu struct proc *p) 86526f3deacStedu { 86626f3deacStedu struct fnode *fp = VTOF(vp); 86726f3deacStedu struct ntnode *ip = FTONT(fp); 86826f3deacStedu struct ntvattr *vap; /* Root attribute */ 86926f3deacStedu cn_t cn = 0; /* VCN in current attribute */ 87026f3deacStedu caddr_t rdbuf; /* Buffer to read directory's blocks */ 87126f3deacStedu u_int32_t blsize; 87226f3deacStedu u_int32_t rdsize; /* Length of data to read from current block */ 87326f3deacStedu struct attr_indexentry *iep; 87426f3deacStedu int error, res, anamelen, fnamelen; 87526f3deacStedu const char *fname,*aname; 87626f3deacStedu u_int32_t aoff; 87726f3deacStedu int attrtype = NTFS_A_DATA; 87826f3deacStedu char *attrname = NULL; 87926f3deacStedu struct fnode *nfp; 88026f3deacStedu struct vnode *nvp; 88126f3deacStedu enum vtype f_type; 88226f3deacStedu int fullscan = 0; 88326f3deacStedu struct ntfs_lookup_ctx *lookup_ctx = NULL, *tctx; 88426f3deacStedu 88526f3deacStedu error = ntfs_ntget(ip, p); 8861ad3841aSjasper 88726f3deacStedu if (error) 88826f3deacStedu return (error); 88926f3deacStedu 89026f3deacStedu error = ntfs_ntvattrget(ntmp, ip, NTFS_A_INDXROOT, "$I30", 0, &vap); 89126f3deacStedu if (error || (vap->va_flag & NTFS_AF_INRUN)) 89226f3deacStedu return (ENOTDIR); 89326f3deacStedu 89426f3deacStedu /* 89526f3deacStedu * Divide file name into: foofilefoofilefoofile[:attrspec] 89626f3deacStedu * Store like this: fname:fnamelen [aname:anamelen] 89726f3deacStedu */ 89826f3deacStedu fname = cnp->cn_nameptr; 89926f3deacStedu aname = NULL; 90026f3deacStedu anamelen = 0; 90126f3deacStedu for (fnamelen = 0; fnamelen < cnp->cn_namelen; fnamelen++) 90226f3deacStedu if(fname[fnamelen] == ':') { 90326f3deacStedu aname = fname + fnamelen + 1; 90426f3deacStedu anamelen = cnp->cn_namelen - fnamelen - 1; 90526f3deacStedu dprintf(("ntfs_ntlookupfile: %s (%d), attr: %s (%d)\n", 90626f3deacStedu fname, fnamelen, aname, anamelen)); 90726f3deacStedu break; 90826f3deacStedu } 90926f3deacStedu 91026f3deacStedu blsize = vap->va_a_iroot->ir_size; 91126f3deacStedu dprintf(("ntfs_ntlookupfile: blksz: %d\n", blsize)); 91226f3deacStedu 91326f3deacStedu rdbuf = (caddr_t) malloc(blsize, M_TEMP, M_WAITOK); 91426f3deacStedu 91526f3deacStedu loop: 91626f3deacStedu rdsize = vap->va_datalen; 91726f3deacStedu dprintf(("ntfs_ntlookupfile: rdsz: %d\n", rdsize)); 91826f3deacStedu 91926f3deacStedu error = ntfs_readattr(ntmp, ip, NTFS_A_INDXROOT, "$I30", 92026f3deacStedu 0, rdsize, rdbuf, NULL); 92126f3deacStedu if (error) 92226f3deacStedu goto fail; 92326f3deacStedu 92426f3deacStedu aoff = sizeof(struct attr_indexroot); 92526f3deacStedu 92626f3deacStedu do { 92726f3deacStedu iep = (struct attr_indexentry *) (rdbuf + aoff); 92826f3deacStedu 92926f3deacStedu for (; !(iep->ie_flag & NTFS_IEFLAG_LAST) && (rdsize > aoff); 93026f3deacStedu aoff += iep->reclen, 93126f3deacStedu iep = (struct attr_indexentry *) (rdbuf + aoff)) 93226f3deacStedu { 93326f3deacStedu ddprintf(("scan: %d, %d\n", 93426f3deacStedu (u_int32_t) iep->ie_number, 93526f3deacStedu (u_int32_t) iep->ie_fnametype)); 93626f3deacStedu 93726f3deacStedu /* check the name - the case-insensitive check 93826f3deacStedu * has to come first, to break from this for loop 93926f3deacStedu * if needed, so we can dive correctly */ 94026f3deacStedu res = ntfs_uastricmp(ntmp, iep->ie_fname, 94126f3deacStedu iep->ie_fnamelen, fname, fnamelen); 94226f3deacStedu if (!fullscan) { 94326f3deacStedu if (res > 0) break; 94426f3deacStedu if (res < 0) continue; 94526f3deacStedu } 94626f3deacStedu 94726f3deacStedu if (iep->ie_fnametype == 0 || 94826f3deacStedu !(ntmp->ntm_flag & NTFS_MFLAG_CASEINS)) 94926f3deacStedu { 95026f3deacStedu res = ntfs_uastrcmp(ntmp, iep->ie_fname, 95126f3deacStedu iep->ie_fnamelen, fname, fnamelen); 95226f3deacStedu if (res != 0 && !fullscan) continue; 95326f3deacStedu } 95426f3deacStedu 95526f3deacStedu /* if we perform full scan, the file does not match 95626f3deacStedu * and this is subnode, dive */ 95726f3deacStedu if (fullscan && res != 0) { 95826f3deacStedu if (iep->ie_flag & NTFS_IEFLAG_SUBNODE) { 959e8821f89Shshoexer tctx = malloc(sizeof(struct ntfs_lookup_ctx), 96026f3deacStedu M_TEMP, M_WAITOK); 96126f3deacStedu tctx->aoff = aoff + iep->reclen; 96226f3deacStedu tctx->rdsize = rdsize; 96326f3deacStedu tctx->cn = cn; 96426f3deacStedu tctx->prev = lookup_ctx; 96526f3deacStedu lookup_ctx = tctx; 96626f3deacStedu break; 96726f3deacStedu } else 96826f3deacStedu continue; 96926f3deacStedu } 97026f3deacStedu 97126f3deacStedu if (aname) { 97226f3deacStedu error = ntfs_ntlookupattr(ntmp, 97326f3deacStedu aname, anamelen, 97426f3deacStedu &attrtype, &attrname); 97526f3deacStedu if (error) 97626f3deacStedu goto fail; 97726f3deacStedu } 97826f3deacStedu 97926f3deacStedu /* Check if we've found ourselves */ 98026f3deacStedu if ((iep->ie_number == ip->i_number) && 98126f3deacStedu (attrtype == fp->f_attrtype) && 98226f3deacStedu ((!attrname && !fp->f_attrname) || 98326f3deacStedu (attrname && fp->f_attrname && 98426f3deacStedu !strcmp(attrname, fp->f_attrname)))) 98526f3deacStedu { 986627b2c48Sthib vref(vp); 98726f3deacStedu *vpp = vp; 98826f3deacStedu error = 0; 98926f3deacStedu goto fail; 99026f3deacStedu } 99126f3deacStedu 99226f3deacStedu /* free the buffer returned by ntfs_ntlookupattr() */ 99326f3deacStedu if (attrname) { 994e8821f89Shshoexer free(attrname, M_TEMP); 99526f3deacStedu attrname = NULL; 99626f3deacStedu } 99726f3deacStedu 99826f3deacStedu /* vget node, but don't load it */ 99926f3deacStedu error = ntfs_vgetex(ntmp->ntm_mountp, 100026f3deacStedu iep->ie_number, attrtype, attrname, 100126f3deacStedu LK_EXCLUSIVE, VG_DONTLOADIN | VG_DONTVALIDFN, 100226f3deacStedu curproc, &nvp); 100326f3deacStedu if (error) 100426f3deacStedu goto fail; 100526f3deacStedu 100626f3deacStedu nfp = VTOF(nvp); 100726f3deacStedu 100826f3deacStedu if (nfp->f_flag & FN_VALID) { 100926f3deacStedu *vpp = nvp; 101026f3deacStedu goto fail; 101126f3deacStedu } 101226f3deacStedu 101326f3deacStedu nfp->f_fflag = iep->ie_fflag; 101426f3deacStedu nfp->f_pnumber = iep->ie_fpnumber; 101526f3deacStedu nfp->f_times = iep->ie_ftimes; 101626f3deacStedu 101726f3deacStedu if((nfp->f_fflag & NTFS_FFLAG_DIR) && 101826f3deacStedu (nfp->f_attrtype == NTFS_A_DATA) && 101926f3deacStedu (nfp->f_attrname == NULL)) 102026f3deacStedu f_type = VDIR; 102126f3deacStedu else 102226f3deacStedu f_type = VREG; 102326f3deacStedu 102426f3deacStedu nvp->v_type = f_type; 102526f3deacStedu 102626f3deacStedu if ((nfp->f_attrtype == NTFS_A_DATA) && 102726f3deacStedu (nfp->f_attrname == NULL)) 102826f3deacStedu { 102926f3deacStedu /* Opening default attribute */ 103026f3deacStedu nfp->f_size = iep->ie_fsize; 103126f3deacStedu nfp->f_allocated = iep->ie_fallocated; 103226f3deacStedu nfp->f_flag |= FN_PRELOADED; 103326f3deacStedu } else { 103426f3deacStedu error = ntfs_filesize(ntmp, nfp, 103526f3deacStedu &nfp->f_size, &nfp->f_allocated); 103626f3deacStedu if (error) { 103726f3deacStedu vput(nvp); 103826f3deacStedu goto fail; 103926f3deacStedu } 104026f3deacStedu } 104126f3deacStedu 104226f3deacStedu nfp->f_flag &= ~FN_VALID; 104326f3deacStedu *vpp = nvp; 104426f3deacStedu goto fail; 104526f3deacStedu } 104626f3deacStedu 104726f3deacStedu /* Dive if possible */ 104826f3deacStedu if (iep->ie_flag & NTFS_IEFLAG_SUBNODE) { 104926f3deacStedu dprintf(("ntfs_ntlookupfile: diving\n")); 105026f3deacStedu 105126f3deacStedu cn = *(cn_t *) (rdbuf + aoff + 105226f3deacStedu iep->reclen - sizeof(cn_t)); 105326f3deacStedu rdsize = blsize; 105426f3deacStedu 105526f3deacStedu error = ntfs_readattr(ntmp, ip, NTFS_A_INDX, "$I30", 105626f3deacStedu ntfs_cntob(cn), rdsize, rdbuf, NULL); 105726f3deacStedu if (error) 105826f3deacStedu goto fail; 105926f3deacStedu 106026f3deacStedu error = ntfs_procfixups(ntmp, NTFS_INDXMAGIC, 106126f3deacStedu rdbuf, rdsize); 106226f3deacStedu if (error) 106326f3deacStedu goto fail; 106426f3deacStedu 106526f3deacStedu aoff = (((struct attr_indexalloc *) rdbuf)->ia_hdrsize + 106626f3deacStedu 0x18); 106726f3deacStedu } else if (fullscan && lookup_ctx) { 106826f3deacStedu cn = lookup_ctx->cn; 106926f3deacStedu aoff = lookup_ctx->aoff; 107026f3deacStedu rdsize = lookup_ctx->rdsize; 107126f3deacStedu 107226f3deacStedu error = ntfs_readattr(ntmp, ip, 107326f3deacStedu (cn == 0) ? NTFS_A_INDXROOT : NTFS_A_INDX, 107426f3deacStedu "$I30", ntfs_cntob(cn), rdsize, rdbuf, NULL); 107526f3deacStedu if (error) 107626f3deacStedu goto fail; 107726f3deacStedu 107826f3deacStedu if (cn != 0) { 107926f3deacStedu error = ntfs_procfixups(ntmp, NTFS_INDXMAGIC, 108026f3deacStedu rdbuf, rdsize); 108126f3deacStedu if (error) 108226f3deacStedu goto fail; 108326f3deacStedu } 108426f3deacStedu 108526f3deacStedu tctx = lookup_ctx; 108626f3deacStedu lookup_ctx = lookup_ctx->prev; 1087e8821f89Shshoexer free(tctx, M_TEMP); 108826f3deacStedu } else { 108926f3deacStedu dprintf(("ntfs_ntlookupfile: nowhere to dive :-(\n")); 109026f3deacStedu error = ENOENT; 109126f3deacStedu break; 109226f3deacStedu } 109326f3deacStedu } while (1); 109426f3deacStedu 109526f3deacStedu /* perform full scan if no entry was found */ 109626f3deacStedu if (!fullscan && error == ENOENT) { 109726f3deacStedu fullscan = 1; 109826f3deacStedu cn = 0; /* need zero, used by lookup_ctx */ 109926f3deacStedu 110026f3deacStedu ddprintf(("ntfs_ntlookupfile: fullscan performed for: %.*s\n", 110126f3deacStedu (int) fnamelen, fname)); 110226f3deacStedu goto loop; 110326f3deacStedu } 110426f3deacStedu 110526f3deacStedu dprintf(("finish\n")); 110626f3deacStedu 110726f3deacStedu fail: 110826f3deacStedu if (attrname) 1109e8821f89Shshoexer free(attrname, M_TEMP); 111026f3deacStedu if (lookup_ctx) { 111126f3deacStedu while(lookup_ctx) { 111226f3deacStedu tctx = lookup_ctx; 111326f3deacStedu lookup_ctx = lookup_ctx->prev; 1114e8821f89Shshoexer free(tctx, M_TEMP); 111526f3deacStedu } 111626f3deacStedu } 111726f3deacStedu ntfs_ntvattrrele(vap); 111826f3deacStedu ntfs_ntput(ip, p); 111926f3deacStedu free(rdbuf, M_TEMP); 112026f3deacStedu return (error); 112126f3deacStedu } 112226f3deacStedu 112326f3deacStedu /* 112426f3deacStedu * Check if name type is permitted to show. 112526f3deacStedu */ 112626f3deacStedu int 112726f3deacStedu ntfs_isnamepermitted( 112826f3deacStedu struct ntfsmount * ntmp, 112926f3deacStedu struct attr_indexentry * iep) 113026f3deacStedu { 113126f3deacStedu if (ntmp->ntm_flag & NTFS_MFLAG_ALLNAMES) 113226f3deacStedu return 1; 113326f3deacStedu 113426f3deacStedu switch (iep->ie_fnametype) { 113526f3deacStedu case 2: 113626f3deacStedu ddprintf(("ntfs_isnamepermitted: skipped DOS name\n")); 113726f3deacStedu return 0; 113826f3deacStedu case 0: case 1: case 3: 113926f3deacStedu return 1; 114026f3deacStedu default: 114126f3deacStedu printf("ntfs_isnamepermitted: " \ 114226f3deacStedu "WARNING! Unknown file name type: %d\n", 114326f3deacStedu iep->ie_fnametype); 114426f3deacStedu break; 114526f3deacStedu } 114626f3deacStedu return 0; 114726f3deacStedu } 114826f3deacStedu 114926f3deacStedu /* 115026f3deacStedu * Read ntfs dir like stream of attr_indexentry, not like btree of them. 115126f3deacStedu * This is done by scanning $BITMAP:$I30 for busy clusters and reading them. 115226f3deacStedu * Of course $INDEX_ROOT:$I30 is read before. Last read values are stored in 115326f3deacStedu * fnode, so we can skip toward record number num almost immediately. 115426f3deacStedu * Anyway this is rather slow routine. The problem is that we don't know 115526f3deacStedu * how many records are there in $INDEX_ALLOCATION:$I30 block. 115626f3deacStedu */ 115726f3deacStedu int 115826f3deacStedu ntfs_ntreaddir( 115926f3deacStedu struct ntfsmount * ntmp, 116026f3deacStedu struct fnode * fp, 116126f3deacStedu u_int32_t num, 116226f3deacStedu struct attr_indexentry ** riepp, 116326f3deacStedu struct proc *p) 116426f3deacStedu { 116526f3deacStedu struct ntnode *ip = FTONT(fp); 116626f3deacStedu struct ntvattr *vap = NULL; /* IndexRoot attribute */ 116726f3deacStedu struct ntvattr *bmvap = NULL; /* BitMap attribute */ 116826f3deacStedu struct ntvattr *iavap = NULL; /* IndexAllocation attribute */ 116926f3deacStedu caddr_t rdbuf; /* Buffer to read directory's blocks */ 11706978a3abSbrad u_int8_t *bmp = NULL; /* Bitmap */ 117126f3deacStedu u_int32_t blsize; /* Index allocation size (2048) */ 117226f3deacStedu u_int32_t rdsize; /* Length of data to read */ 117326f3deacStedu u_int32_t attrnum; /* Current attribute type */ 117426f3deacStedu u_int32_t cpbl = 1; /* Clusters per directory block */ 117526f3deacStedu u_int32_t blnum; 117626f3deacStedu struct attr_indexentry *iep; 117726f3deacStedu int error = ENOENT; 117826f3deacStedu u_int32_t aoff, cnum; 117926f3deacStedu 118026f3deacStedu dprintf(("ntfs_ntreaddir: read ino: %d, num: %d\n", ip->i_number, num)); 118126f3deacStedu error = ntfs_ntget(ip, p); 118226f3deacStedu if (error) 118326f3deacStedu return (error); 118426f3deacStedu 118526f3deacStedu error = ntfs_ntvattrget(ntmp, ip, NTFS_A_INDXROOT, "$I30", 0, &vap); 118626f3deacStedu if (error) 118726f3deacStedu return (ENOTDIR); 118826f3deacStedu 118926f3deacStedu if (fp->f_dirblbuf == NULL) { 119026f3deacStedu fp->f_dirblsz = vap->va_a_iroot->ir_size; 119126f3deacStedu fp->f_dirblbuf = (caddr_t) malloc( 1192835c1779Sbrad MAX(vap->va_datalen,fp->f_dirblsz), M_NTFSDIR, M_WAITOK); 119326f3deacStedu } 119426f3deacStedu 119526f3deacStedu blsize = fp->f_dirblsz; 119626f3deacStedu rdbuf = fp->f_dirblbuf; 119726f3deacStedu 1198846c180eSbrad dprintf(("ntfs_ntreaddir: rdbuf: %p, blsize: %d\n", rdbuf, blsize)); 119926f3deacStedu 120026f3deacStedu if (vap->va_a_iroot->ir_flag & NTFS_IRFLAG_INDXALLOC) { 120126f3deacStedu error = ntfs_ntvattrget(ntmp, ip, NTFS_A_INDXBITMAP, "$I30", 120226f3deacStedu 0, &bmvap); 120326f3deacStedu if (error) { 120426f3deacStedu error = ENOTDIR; 120526f3deacStedu goto fail; 120626f3deacStedu } 12076978a3abSbrad bmp = (u_int8_t *) malloc(bmvap->va_datalen, M_TEMP, M_WAITOK); 120826f3deacStedu error = ntfs_readattr(ntmp, ip, NTFS_A_INDXBITMAP, "$I30", 0, 120926f3deacStedu bmvap->va_datalen, bmp, NULL); 121026f3deacStedu if (error) 121126f3deacStedu goto fail; 121226f3deacStedu 121326f3deacStedu error = ntfs_ntvattrget(ntmp, ip, NTFS_A_INDX, "$I30", 121426f3deacStedu 0, &iavap); 121526f3deacStedu if (error) { 121626f3deacStedu error = ENOTDIR; 121726f3deacStedu goto fail; 121826f3deacStedu } 121926f3deacStedu cpbl = ntfs_btocn(blsize + ntfs_cntob(1) - 1); 122026f3deacStedu dprintf(("ntfs_ntreaddir: indexalloc: %d, cpbl: %d\n", 122126f3deacStedu iavap->va_datalen, cpbl)); 122226f3deacStedu } else { 122326f3deacStedu dprintf(("ntfs_ntreadidir: w/o BitMap and IndexAllocation\n")); 122426f3deacStedu iavap = bmvap = NULL; 122526f3deacStedu bmp = NULL; 122626f3deacStedu } 122726f3deacStedu 122826f3deacStedu /* Try use previous values */ 122926f3deacStedu if ((fp->f_lastdnum < num) && (fp->f_lastdnum != 0)) { 123026f3deacStedu attrnum = fp->f_lastdattr; 123126f3deacStedu aoff = fp->f_lastdoff; 123226f3deacStedu blnum = fp->f_lastdblnum; 123326f3deacStedu cnum = fp->f_lastdnum; 123426f3deacStedu } else { 123526f3deacStedu attrnum = NTFS_A_INDXROOT; 123626f3deacStedu aoff = sizeof(struct attr_indexroot); 123726f3deacStedu blnum = 0; 123826f3deacStedu cnum = 0; 123926f3deacStedu } 124026f3deacStedu 124126f3deacStedu do { 124226f3deacStedu dprintf(("ntfs_ntreaddir: scan: 0x%x, %d, %d, %d, %d\n", 124326f3deacStedu attrnum, (u_int32_t) blnum, cnum, num, aoff)); 124426f3deacStedu rdsize = (attrnum == NTFS_A_INDXROOT) ? vap->va_datalen : blsize; 124526f3deacStedu error = ntfs_readattr(ntmp, ip, attrnum, "$I30", 124626f3deacStedu ntfs_cntob(blnum * cpbl), rdsize, rdbuf, NULL); 124726f3deacStedu if (error) 124826f3deacStedu goto fail; 124926f3deacStedu 125026f3deacStedu if (attrnum == NTFS_A_INDX) { 125126f3deacStedu error = ntfs_procfixups(ntmp, NTFS_INDXMAGIC, 125226f3deacStedu rdbuf, rdsize); 125326f3deacStedu if (error) 125426f3deacStedu goto fail; 125526f3deacStedu } 125626f3deacStedu if (aoff == 0) 125726f3deacStedu aoff = (attrnum == NTFS_A_INDX) ? 125826f3deacStedu (0x18 + ((struct attr_indexalloc *) rdbuf)->ia_hdrsize) : 125926f3deacStedu sizeof(struct attr_indexroot); 126026f3deacStedu 126126f3deacStedu iep = (struct attr_indexentry *) (rdbuf + aoff); 126226f3deacStedu for (; !(iep->ie_flag & NTFS_IEFLAG_LAST) && (rdsize > aoff); 126326f3deacStedu aoff += iep->reclen, 126426f3deacStedu iep = (struct attr_indexentry *) (rdbuf + aoff)) 126526f3deacStedu { 126626f3deacStedu if (!ntfs_isnamepermitted(ntmp, iep)) continue; 126726f3deacStedu 126826f3deacStedu if (cnum >= num) { 126926f3deacStedu fp->f_lastdnum = cnum; 127026f3deacStedu fp->f_lastdoff = aoff; 127126f3deacStedu fp->f_lastdblnum = blnum; 127226f3deacStedu fp->f_lastdattr = attrnum; 127326f3deacStedu 127426f3deacStedu *riepp = iep; 127526f3deacStedu 127626f3deacStedu error = 0; 127726f3deacStedu goto fail; 127826f3deacStedu } 127926f3deacStedu cnum++; 128026f3deacStedu } 128126f3deacStedu 128226f3deacStedu if (iavap) { 128326f3deacStedu if (attrnum == NTFS_A_INDXROOT) 128426f3deacStedu blnum = 0; 128526f3deacStedu else 128626f3deacStedu blnum++; 128726f3deacStedu 128826f3deacStedu while (ntfs_cntob(blnum * cpbl) < iavap->va_datalen) { 12896978a3abSbrad if (bmp[blnum >> 3] & (1 << (blnum & 7))) 129026f3deacStedu break; 129126f3deacStedu blnum++; 129226f3deacStedu } 129326f3deacStedu 129426f3deacStedu attrnum = NTFS_A_INDX; 129526f3deacStedu aoff = 0; 129626f3deacStedu if (ntfs_cntob(blnum * cpbl) >= iavap->va_datalen) 129726f3deacStedu break; 129826f3deacStedu dprintf(("ntfs_ntreaddir: blnum: %d\n", (u_int32_t) blnum)); 129926f3deacStedu } 130026f3deacStedu } while (iavap); 130126f3deacStedu 130226f3deacStedu *riepp = NULL; 130326f3deacStedu fp->f_lastdnum = 0; 130426f3deacStedu 130526f3deacStedu fail: 130626f3deacStedu if (vap) 130726f3deacStedu ntfs_ntvattrrele(vap); 130826f3deacStedu if (bmvap) 130926f3deacStedu ntfs_ntvattrrele(bmvap); 131026f3deacStedu if (iavap) 131126f3deacStedu ntfs_ntvattrrele(iavap); 131226f3deacStedu if (bmp) 1313e8821f89Shshoexer free(bmp, M_TEMP); 131426f3deacStedu ntfs_ntput(ip, p); 13151ad3841aSjasper 131626f3deacStedu return (error); 131726f3deacStedu } 131826f3deacStedu 131926f3deacStedu /* 132026f3deacStedu * Convert NTFS times that are in 100 ns units and begins from 132126f3deacStedu * 1601 Jan 1 into unix times. 132226f3deacStedu */ 132326f3deacStedu struct timespec 132426f3deacStedu ntfs_nttimetounix( 132526f3deacStedu u_int64_t nt) 132626f3deacStedu { 132726f3deacStedu struct timespec t; 132826f3deacStedu 132926f3deacStedu /* WindowNT times are in 100 ns and from 1601 Jan 1 */ 133026f3deacStedu t.tv_nsec = (nt % (1000 * 1000 * 10)) * 100; 133126f3deacStedu t.tv_sec = nt / (1000 * 1000 * 10) - 133226f3deacStedu 369LL * 365LL * 24LL * 60LL * 60LL - 133326f3deacStedu 89LL * 1LL * 24LL * 60LL * 60LL; 133426f3deacStedu return (t); 133526f3deacStedu } 133626f3deacStedu 133726f3deacStedu /* 133826f3deacStedu * Get file sizes from corresponding attribute. 133926f3deacStedu * 134026f3deacStedu * ntnode under fnode should be locked. 134126f3deacStedu */ 134226f3deacStedu int 134326f3deacStedu ntfs_filesize( 134426f3deacStedu struct ntfsmount * ntmp, 134526f3deacStedu struct fnode * fp, 134626f3deacStedu u_int64_t * size, 134726f3deacStedu u_int64_t * bytes) 134826f3deacStedu { 134926f3deacStedu struct ntvattr *vap; 135026f3deacStedu struct ntnode *ip = FTONT(fp); 135126f3deacStedu u_int64_t sz, bn; 135226f3deacStedu int error; 135326f3deacStedu 135426f3deacStedu dprintf(("ntfs_filesize: ino: %d\n", ip->i_number)); 135526f3deacStedu 135626f3deacStedu error = ntfs_ntvattrget(ntmp, ip, 135726f3deacStedu fp->f_attrtype, fp->f_attrname, 0, &vap); 135826f3deacStedu if (error) 135926f3deacStedu return (error); 136026f3deacStedu 136126f3deacStedu bn = vap->va_allocated; 136226f3deacStedu sz = vap->va_datalen; 136326f3deacStedu 136426f3deacStedu dprintf(("ntfs_filesize: %d bytes (%d bytes allocated)\n", 136526f3deacStedu (u_int32_t) sz, (u_int32_t) bn)); 136626f3deacStedu 136726f3deacStedu if (size) 136826f3deacStedu *size = sz; 136926f3deacStedu if (bytes) 137026f3deacStedu *bytes = bn; 137126f3deacStedu 137226f3deacStedu ntfs_ntvattrrele(vap); 137326f3deacStedu 137426f3deacStedu return (0); 137526f3deacStedu } 137626f3deacStedu 137726f3deacStedu /* 1378835c1779Sbrad * This is one of the write routines. 137926f3deacStedu */ 138026f3deacStedu int 138126f3deacStedu ntfs_writeattr_plain( 138226f3deacStedu struct ntfsmount * ntmp, 138326f3deacStedu struct ntnode * ip, 138426f3deacStedu u_int32_t attrnum, 138526f3deacStedu char *attrname, 138626f3deacStedu off_t roff, 138726f3deacStedu size_t rsize, 138826f3deacStedu void *rdata, 138926f3deacStedu size_t * initp, 139026f3deacStedu struct uio *uio) 139126f3deacStedu { 139226f3deacStedu size_t init; 139326f3deacStedu int error = 0; 139426f3deacStedu off_t off = roff, left = rsize, towrite; 139526f3deacStedu caddr_t data = rdata; 139626f3deacStedu struct ntvattr *vap; 139726f3deacStedu *initp = 0; 139826f3deacStedu 139926f3deacStedu while (left) { 140026f3deacStedu error = ntfs_ntvattrget(ntmp, ip, attrnum, attrname, 140126f3deacStedu ntfs_btocn(off), &vap); 140226f3deacStedu if (error) 140326f3deacStedu return (error); 1404835c1779Sbrad towrite = MIN(left, ntfs_cntob(vap->va_vcnend + 1) - off); 140526f3deacStedu ddprintf(("ntfs_writeattr_plain: o: %d, s: %d (%d - %d)\n", 140626f3deacStedu (u_int32_t) off, (u_int32_t) towrite, 140726f3deacStedu (u_int32_t) vap->va_vcnstart, 140826f3deacStedu (u_int32_t) vap->va_vcnend)); 140926f3deacStedu error = ntfs_writentvattr_plain(ntmp, ip, vap, 141026f3deacStedu off - ntfs_cntob(vap->va_vcnstart), 141126f3deacStedu towrite, data, &init, uio); 141226f3deacStedu if (error) { 141326f3deacStedu dprintf(("ntfs_writeattr_plain: " \ 141426f3deacStedu "ntfs_writentvattr_plain failed: o: %d, s: %d\n", 141526f3deacStedu (u_int32_t) off, (u_int32_t) towrite)); 141626f3deacStedu dprintf(("ntfs_writeattr_plain: attrib: %d - %d\n", 141726f3deacStedu (u_int32_t) vap->va_vcnstart, 141826f3deacStedu (u_int32_t) vap->va_vcnend)); 141926f3deacStedu ntfs_ntvattrrele(vap); 142026f3deacStedu break; 142126f3deacStedu } 142226f3deacStedu ntfs_ntvattrrele(vap); 142326f3deacStedu left -= towrite; 142426f3deacStedu off += towrite; 142526f3deacStedu data = data + towrite; 142626f3deacStedu *initp += init; 142726f3deacStedu } 142826f3deacStedu 142926f3deacStedu return (error); 143026f3deacStedu } 143126f3deacStedu 143226f3deacStedu /* 1433835c1779Sbrad * This is one of the write routines. 143426f3deacStedu * 143526f3deacStedu * ntnode should be locked. 143626f3deacStedu */ 143726f3deacStedu int 143826f3deacStedu ntfs_writentvattr_plain( 143926f3deacStedu struct ntfsmount * ntmp, 144026f3deacStedu struct ntnode * ip, 144126f3deacStedu struct ntvattr * vap, 144226f3deacStedu off_t roff, 144326f3deacStedu size_t rsize, 144426f3deacStedu void *rdata, 144526f3deacStedu size_t * initp, 144626f3deacStedu struct uio *uio) 144726f3deacStedu { 144826f3deacStedu int error = 0; 144926f3deacStedu int off; 145026f3deacStedu int cnt; 145126f3deacStedu cn_t ccn, ccl, cn, left, cl; 145226f3deacStedu caddr_t data = rdata; 145326f3deacStedu struct buf *bp; 145426f3deacStedu size_t tocopy; 145526f3deacStedu 145626f3deacStedu *initp = 0; 145726f3deacStedu 145826f3deacStedu if ((vap->va_flag & NTFS_AF_INRUN) == 0) { 145926f3deacStedu dprintf(("ntfs_writevattr_plain: CAN'T WRITE RES. ATTRIBUTE\n")); 146026f3deacStedu return ENOTTY; 146126f3deacStedu } 146226f3deacStedu 146326f3deacStedu ddprintf(("ntfs_writentvattr_plain: data in run: %lu chains\n", 146426f3deacStedu vap->va_vruncnt)); 146526f3deacStedu 146626f3deacStedu off = roff; 146726f3deacStedu left = rsize; 146826f3deacStedu ccl = 0; 146926f3deacStedu ccn = 0; 147026f3deacStedu cnt = 0; 147126f3deacStedu for (; left && (cnt < vap->va_vruncnt); cnt++) { 147226f3deacStedu ccn = vap->va_vruncn[cnt]; 147326f3deacStedu ccl = vap->va_vruncl[cnt]; 147426f3deacStedu 147526f3deacStedu ddprintf(("ntfs_writentvattr_plain: " \ 147626f3deacStedu "left %d, cn: 0x%x, cl: %d, off: %d\n", \ 147726f3deacStedu (u_int32_t) left, (u_int32_t) ccn, \ 147826f3deacStedu (u_int32_t) ccl, (u_int32_t) off)); 147926f3deacStedu 148026f3deacStedu if (ntfs_cntob(ccl) < off) { 148126f3deacStedu off -= ntfs_cntob(ccl); 148226f3deacStedu cnt++; 148326f3deacStedu continue; 148426f3deacStedu } 148526f3deacStedu if (!ccn && ip->i_number != NTFS_BOOTINO) 148626f3deacStedu continue; /* XXX */ 148726f3deacStedu 148826f3deacStedu ccl -= ntfs_btocn(off); 148926f3deacStedu cn = ccn + ntfs_btocn(off); 149026f3deacStedu off = ntfs_btocnoff(off); 149126f3deacStedu 149226f3deacStedu while (left && ccl) { 1493835c1779Sbrad /* 1494835c1779Sbrad * Always read and write single clusters at a time - 1495835c1779Sbrad * we need to avoid requesting differently-sized 1496835c1779Sbrad * blocks at the same disk offsets to avoid 1497835c1779Sbrad * confusing the buffer cache. 1498835c1779Sbrad */ 1499835c1779Sbrad tocopy = MIN(left, ntfs_cntob(1) - off); 150026f3deacStedu cl = ntfs_btocl(tocopy + off); 1501835c1779Sbrad KASSERT(cl == 1 && tocopy <= ntfs_cntob(1)); 150226f3deacStedu ddprintf(("ntfs_writentvattr_plain: write: " \ 150326f3deacStedu "cn: 0x%x cl: %d, off: %d len: %d, left: %d\n", 150426f3deacStedu (u_int32_t) cn, (u_int32_t) cl, 150526f3deacStedu (u_int32_t) off, (u_int32_t) tocopy, 150626f3deacStedu (u_int32_t) left)); 150726f3deacStedu if ((off == 0) && (tocopy == ntfs_cntob(cl))) 150826f3deacStedu { 150926f3deacStedu bp = getblk(ntmp->ntm_devvp, ntfs_cntobn(cn), 151026f3deacStedu ntfs_cntob(cl), 0, 0); 151126f3deacStedu clrbuf(bp); 151226f3deacStedu } else { 151326f3deacStedu error = bread(ntmp->ntm_devvp, ntfs_cntobn(cn), 151426f3deacStedu ntfs_cntob(cl), NOCRED, &bp); 151526f3deacStedu if (error) { 151626f3deacStedu brelse(bp); 151726f3deacStedu return (error); 151826f3deacStedu } 151926f3deacStedu } 1520*fca26c8fSmiod if (uio) { 1521*fca26c8fSmiod error = uiomove(bp->b_data + off, tocopy, uio); 1522*fca26c8fSmiod if (error != 0) 1523*fca26c8fSmiod break; 1524*fca26c8fSmiod } else 152526f3deacStedu memcpy(bp->b_data + off, data, tocopy); 152626f3deacStedu bawrite(bp); 152726f3deacStedu data = data + tocopy; 152826f3deacStedu *initp += tocopy; 152926f3deacStedu off = 0; 153026f3deacStedu left -= tocopy; 153126f3deacStedu cn += cl; 153226f3deacStedu ccl -= cl; 153326f3deacStedu } 153426f3deacStedu } 153526f3deacStedu 1536*fca26c8fSmiod if (left && error == 0) { 153726f3deacStedu printf("ntfs_writentvattr_plain: POSSIBLE RUN ERROR\n"); 153826f3deacStedu error = EINVAL; 153926f3deacStedu } 154026f3deacStedu 154126f3deacStedu return (error); 154226f3deacStedu } 154326f3deacStedu 154426f3deacStedu /* 1545835c1779Sbrad * This is one of the read routines. 154626f3deacStedu * 154726f3deacStedu * ntnode should be locked. 154826f3deacStedu */ 154926f3deacStedu int 155026f3deacStedu ntfs_readntvattr_plain( 155126f3deacStedu struct ntfsmount * ntmp, 155226f3deacStedu struct ntnode * ip, 155326f3deacStedu struct ntvattr * vap, 155426f3deacStedu off_t roff, 155526f3deacStedu size_t rsize, 155626f3deacStedu void *rdata, 155726f3deacStedu size_t * initp, 155826f3deacStedu struct uio *uio) 155926f3deacStedu { 156026f3deacStedu int error = 0; 156126f3deacStedu int off; 156226f3deacStedu 156326f3deacStedu *initp = 0; 156426f3deacStedu if (vap->va_flag & NTFS_AF_INRUN) { 156526f3deacStedu int cnt; 156626f3deacStedu cn_t ccn, ccl, cn, left, cl; 156726f3deacStedu caddr_t data = rdata; 156826f3deacStedu struct buf *bp; 156926f3deacStedu size_t tocopy; 157026f3deacStedu 157126f3deacStedu ddprintf(("ntfs_readntvattr_plain: data in run: %lu chains\n", 157226f3deacStedu vap->va_vruncnt)); 157326f3deacStedu 157426f3deacStedu off = roff; 157526f3deacStedu left = rsize; 157626f3deacStedu ccl = 0; 157726f3deacStedu ccn = 0; 157826f3deacStedu cnt = 0; 157926f3deacStedu while (left && (cnt < vap->va_vruncnt)) { 158026f3deacStedu ccn = vap->va_vruncn[cnt]; 158126f3deacStedu ccl = vap->va_vruncl[cnt]; 158226f3deacStedu 158326f3deacStedu ddprintf(("ntfs_readntvattr_plain: " \ 158426f3deacStedu "left %d, cn: 0x%x, cl: %d, off: %d\n", \ 158526f3deacStedu (u_int32_t) left, (u_int32_t) ccn, \ 158626f3deacStedu (u_int32_t) ccl, (u_int32_t) off)); 158726f3deacStedu 158826f3deacStedu if (ntfs_cntob(ccl) < off) { 158926f3deacStedu off -= ntfs_cntob(ccl); 159026f3deacStedu cnt++; 159126f3deacStedu continue; 159226f3deacStedu } 159326f3deacStedu if (ccn || ip->i_number == NTFS_BOOTINO) { 159426f3deacStedu ccl -= ntfs_btocn(off); 159526f3deacStedu cn = ccn + ntfs_btocn(off); 159626f3deacStedu off = ntfs_btocnoff(off); 159726f3deacStedu 159826f3deacStedu while (left && ccl) { 159926f3deacStedu /* 1600835c1779Sbrad * Always read single clusters at a 1601835c1779Sbrad * time - we need to avoid reading 1602835c1779Sbrad * differently-sized blocks at the 1603835c1779Sbrad * same disk offsets to avoid 1604835c1779Sbrad * confusing the buffer cache. 160526f3deacStedu */ 1606835c1779Sbrad tocopy = MIN(left, 1607835c1779Sbrad ntfs_cntob(1) - off); 1608835c1779Sbrad cl = ntfs_btocl(tocopy + off); 1609835c1779Sbrad KASSERT(cl == 1 && 1610835c1779Sbrad tocopy <= ntfs_cntob(1)); 161126f3deacStedu 161226f3deacStedu ddprintf(("ntfs_readntvattr_plain: " \ 161326f3deacStedu "read: cn: 0x%x cl: %d, " \ 161426f3deacStedu "off: %d len: %d, left: %d\n", 161526f3deacStedu (u_int32_t) cn, 161626f3deacStedu (u_int32_t) cl, 161726f3deacStedu (u_int32_t) off, 161826f3deacStedu (u_int32_t) tocopy, 161926f3deacStedu (u_int32_t) left)); 162026f3deacStedu error = bread(ntmp->ntm_devvp, 162126f3deacStedu ntfs_cntobn(cn), 162226f3deacStedu ntfs_cntob(cl), 162326f3deacStedu NOCRED, &bp); 162426f3deacStedu if (error) { 162526f3deacStedu brelse(bp); 162626f3deacStedu return (error); 162726f3deacStedu } 162826f3deacStedu if (uio) { 1629*fca26c8fSmiod error = uiomove(bp->b_data + off, 163026f3deacStedu tocopy, uio); 1631*fca26c8fSmiod if (error != 0) 1632*fca26c8fSmiod break; 163326f3deacStedu } else { 163426f3deacStedu memcpy(data, bp->b_data + off, 163526f3deacStedu tocopy); 163626f3deacStedu } 163726f3deacStedu brelse(bp); 163826f3deacStedu data = data + tocopy; 163926f3deacStedu *initp += tocopy; 164026f3deacStedu off = 0; 164126f3deacStedu left -= tocopy; 164226f3deacStedu cn += cl; 164326f3deacStedu ccl -= cl; 164426f3deacStedu } 164526f3deacStedu } else { 1646835c1779Sbrad tocopy = MIN(left, ntfs_cntob(ccl) - off); 164726f3deacStedu ddprintf(("ntfs_readntvattr_plain: " 164826f3deacStedu "hole: ccn: 0x%x ccl: %d, off: %d, " \ 164926f3deacStedu " len: %d, left: %d\n", 165026f3deacStedu (u_int32_t) ccn, (u_int32_t) ccl, 165126f3deacStedu (u_int32_t) off, (u_int32_t) tocopy, 165226f3deacStedu (u_int32_t) left)); 165326f3deacStedu left -= tocopy; 165426f3deacStedu off = 0; 165526f3deacStedu if (uio) { 165626f3deacStedu size_t remains = tocopy; 1657*fca26c8fSmiod for(; remains; remains--) { 1658*fca26c8fSmiod error = uiomove("", 1, uio); 1659*fca26c8fSmiod if (error != 0) 1660*fca26c8fSmiod break; 1661*fca26c8fSmiod } 166226f3deacStedu } else 166326f3deacStedu bzero(data, tocopy); 166426f3deacStedu data = data + tocopy; 166526f3deacStedu } 166626f3deacStedu cnt++; 1667*fca26c8fSmiod if (error != 0) 1668*fca26c8fSmiod break; 166926f3deacStedu } 1670*fca26c8fSmiod if (left && error == 0) { 167126f3deacStedu printf("ntfs_readntvattr_plain: POSSIBLE RUN ERROR\n"); 167226f3deacStedu error = E2BIG; 167326f3deacStedu } 167426f3deacStedu } else { 167526f3deacStedu ddprintf(("ntfs_readnvattr_plain: data is in mft record\n")); 167626f3deacStedu if (uio) 1677*fca26c8fSmiod error = uiomove(vap->va_datap + roff, rsize, uio); 167826f3deacStedu else 167926f3deacStedu memcpy(rdata, vap->va_datap + roff, rsize); 168026f3deacStedu *initp += rsize; 168126f3deacStedu } 168226f3deacStedu 168326f3deacStedu return (error); 168426f3deacStedu } 168526f3deacStedu 168626f3deacStedu /* 168726f3deacStedu * This is one of read routines. 168826f3deacStedu */ 168926f3deacStedu int 169026f3deacStedu ntfs_readattr_plain( 169126f3deacStedu struct ntfsmount * ntmp, 169226f3deacStedu struct ntnode * ip, 169326f3deacStedu u_int32_t attrnum, 169426f3deacStedu char *attrname, 169526f3deacStedu off_t roff, 169626f3deacStedu size_t rsize, 169726f3deacStedu void *rdata, 169826f3deacStedu size_t * initp, 169926f3deacStedu struct uio *uio) 170026f3deacStedu { 170126f3deacStedu size_t init; 170226f3deacStedu int error = 0; 170326f3deacStedu off_t off = roff, left = rsize, toread; 170426f3deacStedu caddr_t data = rdata; 170526f3deacStedu struct ntvattr *vap; 170626f3deacStedu *initp = 0; 170726f3deacStedu 170826f3deacStedu while (left) { 170926f3deacStedu error = ntfs_ntvattrget(ntmp, ip, attrnum, attrname, 171026f3deacStedu ntfs_btocn(off), &vap); 171126f3deacStedu if (error) 171226f3deacStedu return (error); 1713835c1779Sbrad toread = MIN(left, ntfs_cntob(vap->va_vcnend + 1) - off); 171426f3deacStedu ddprintf(("ntfs_readattr_plain: o: %d, s: %d (%d - %d)\n", 171526f3deacStedu (u_int32_t) off, (u_int32_t) toread, 171626f3deacStedu (u_int32_t) vap->va_vcnstart, 171726f3deacStedu (u_int32_t) vap->va_vcnend)); 171826f3deacStedu error = ntfs_readntvattr_plain(ntmp, ip, vap, 171926f3deacStedu off - ntfs_cntob(vap->va_vcnstart), 172026f3deacStedu toread, data, &init, uio); 172126f3deacStedu if (error) { 172226f3deacStedu printf("ntfs_readattr_plain: " \ 172326f3deacStedu "ntfs_readntvattr_plain failed: o: %d, s: %d\n", 172426f3deacStedu (u_int32_t) off, (u_int32_t) toread); 172526f3deacStedu printf("ntfs_readattr_plain: attrib: %d - %d\n", 172626f3deacStedu (u_int32_t) vap->va_vcnstart, 172726f3deacStedu (u_int32_t) vap->va_vcnend); 172826f3deacStedu ntfs_ntvattrrele(vap); 172926f3deacStedu break; 173026f3deacStedu } 173126f3deacStedu ntfs_ntvattrrele(vap); 173226f3deacStedu left -= toread; 173326f3deacStedu off += toread; 173426f3deacStedu data = data + toread; 173526f3deacStedu *initp += init; 173626f3deacStedu } 173726f3deacStedu 173826f3deacStedu return (error); 173926f3deacStedu } 174026f3deacStedu 174126f3deacStedu /* 174226f3deacStedu * This is one of read routines. 174326f3deacStedu */ 174426f3deacStedu int 174526f3deacStedu ntfs_readattr( 174626f3deacStedu struct ntfsmount * ntmp, 174726f3deacStedu struct ntnode * ip, 174826f3deacStedu u_int32_t attrnum, 174926f3deacStedu char *attrname, 175026f3deacStedu off_t roff, 175126f3deacStedu size_t rsize, 175226f3deacStedu void *rdata, 175326f3deacStedu struct uio *uio) 175426f3deacStedu { 175526f3deacStedu int error = 0; 175626f3deacStedu struct ntvattr *vap; 175726f3deacStedu size_t init; 175826f3deacStedu 175926f3deacStedu ddprintf(("ntfs_readattr: reading %d: 0x%x, from %d size %d bytes\n", 176026f3deacStedu ip->i_number, attrnum, (u_int32_t) roff, (u_int32_t) rsize)); 176126f3deacStedu 176226f3deacStedu error = ntfs_ntvattrget(ntmp, ip, attrnum, attrname, 0, &vap); 176326f3deacStedu if (error) 176426f3deacStedu return (error); 176526f3deacStedu 176626f3deacStedu if ((roff > vap->va_datalen) || 176726f3deacStedu (roff + rsize > vap->va_datalen)) { 176826f3deacStedu printf("ntfs_readattr: offset too big: %ld (%ld) > %ld\n", 176926f3deacStedu (long int) roff, (long int) roff + rsize, 177026f3deacStedu (long int) vap->va_datalen); 177126f3deacStedu ntfs_ntvattrrele(vap); 177226f3deacStedu return (E2BIG); 177326f3deacStedu } 177426f3deacStedu if (vap->va_compression && vap->va_compressalg) { 177526f3deacStedu u_int8_t *cup; 177626f3deacStedu u_int8_t *uup; 177726f3deacStedu off_t off = roff, left = rsize, tocopy; 177826f3deacStedu caddr_t data = rdata; 177926f3deacStedu cn_t cn; 178026f3deacStedu 178126f3deacStedu ddprintf(("ntfs_ntreadattr: compression: %d\n", 178226f3deacStedu vap->va_compressalg)); 178326f3deacStedu 1784e8821f89Shshoexer cup = malloc(ntfs_cntob(NTFS_COMPUNIT_CL), M_NTFSDECOMP, 1785e8821f89Shshoexer M_WAITOK); 1786e8821f89Shshoexer uup = malloc(ntfs_cntob(NTFS_COMPUNIT_CL), M_NTFSDECOMP, 1787e8821f89Shshoexer M_WAITOK); 178826f3deacStedu 178926f3deacStedu cn = (ntfs_btocn(roff)) & (~(NTFS_COMPUNIT_CL - 1)); 179026f3deacStedu off = roff - ntfs_cntob(cn); 179126f3deacStedu 179226f3deacStedu while (left) { 179326f3deacStedu error = ntfs_readattr_plain(ntmp, ip, attrnum, 179426f3deacStedu attrname, ntfs_cntob(cn), 179526f3deacStedu ntfs_cntob(NTFS_COMPUNIT_CL), 179626f3deacStedu cup, &init, NULL); 179726f3deacStedu if (error) 179826f3deacStedu break; 179926f3deacStedu 1800835c1779Sbrad tocopy = MIN(left, ntfs_cntob(NTFS_COMPUNIT_CL) - off); 180126f3deacStedu 180226f3deacStedu if (init == ntfs_cntob(NTFS_COMPUNIT_CL)) { 180326f3deacStedu if (uio) 1804*fca26c8fSmiod error = uiomove(cup + off, tocopy, uio); 180526f3deacStedu else 180626f3deacStedu memcpy(data, cup + off, tocopy); 180726f3deacStedu } else if (init == 0) { 180826f3deacStedu if (uio) { 180926f3deacStedu size_t remains = tocopy; 1810*fca26c8fSmiod for(; remains; remains--) { 1811*fca26c8fSmiod error = uiomove("", 1, uio); 1812*fca26c8fSmiod if (error != 0) 1813*fca26c8fSmiod break; 1814*fca26c8fSmiod } 181526f3deacStedu } 181626f3deacStedu else 181726f3deacStedu bzero(data, tocopy); 181826f3deacStedu } else { 181926f3deacStedu error = ntfs_uncompunit(ntmp, uup, cup); 182026f3deacStedu if (error) 182126f3deacStedu break; 182226f3deacStedu if (uio) 1823*fca26c8fSmiod error = uiomove(uup + off, tocopy, uio); 182426f3deacStedu else 182526f3deacStedu memcpy(data, uup + off, tocopy); 182626f3deacStedu } 1827*fca26c8fSmiod if (error) 1828*fca26c8fSmiod break; 182926f3deacStedu 183026f3deacStedu left -= tocopy; 183126f3deacStedu data = data + tocopy; 183226f3deacStedu off += tocopy - ntfs_cntob(NTFS_COMPUNIT_CL); 183326f3deacStedu cn += NTFS_COMPUNIT_CL; 183426f3deacStedu } 183526f3deacStedu 1836e8821f89Shshoexer free(uup, M_NTFSDECOMP); 1837e8821f89Shshoexer free(cup, M_NTFSDECOMP); 183826f3deacStedu } else 183926f3deacStedu error = ntfs_readattr_plain(ntmp, ip, attrnum, attrname, 184026f3deacStedu roff, rsize, rdata, &init, uio); 184126f3deacStedu ntfs_ntvattrrele(vap); 184226f3deacStedu return (error); 184326f3deacStedu } 184426f3deacStedu 184526f3deacStedu #if UNUSED_CODE 184626f3deacStedu int 184726f3deacStedu ntfs_parserun( 184826f3deacStedu cn_t * cn, 184926f3deacStedu cn_t * cl, 185026f3deacStedu u_int8_t * run, 185126f3deacStedu u_long len, 185226f3deacStedu u_long *off) 185326f3deacStedu { 185426f3deacStedu u_int8_t sz; 185526f3deacStedu int i; 185626f3deacStedu 185726f3deacStedu if (NULL == run) { 185826f3deacStedu printf("ntfs_parsetun: run == NULL\n"); 185926f3deacStedu return (EINVAL); 186026f3deacStedu } 186126f3deacStedu sz = run[(*off)++]; 186226f3deacStedu if (0 == sz) { 186326f3deacStedu printf("ntfs_parserun: trying to go out of run\n"); 186426f3deacStedu return (E2BIG); 186526f3deacStedu } 186626f3deacStedu *cl = 0; 186726f3deacStedu if ((sz & 0xF) > 8 || (*off) + (sz & 0xF) > len) { 186826f3deacStedu printf("ntfs_parserun: " \ 186926f3deacStedu "bad run: length too big: sz: 0x%02x (%ld < %ld + sz)\n", 187026f3deacStedu sz, len, *off); 187126f3deacStedu return (EINVAL); 187226f3deacStedu } 187326f3deacStedu for (i = 0; i < (sz & 0xF); i++) 187426f3deacStedu *cl += (u_int32_t) run[(*off)++] << (i << 3); 187526f3deacStedu 187626f3deacStedu sz >>= 4; 187726f3deacStedu if ((sz & 0xF) > 8 || (*off) + (sz & 0xF) > len) { 187826f3deacStedu printf("ntfs_parserun: " \ 187926f3deacStedu "bad run: length too big: sz: 0x%02x (%ld < %ld + sz)\n", 188026f3deacStedu sz, len, *off); 188126f3deacStedu return (EINVAL); 188226f3deacStedu } 188326f3deacStedu for (i = 0; i < (sz & 0xF); i++) 188426f3deacStedu *cn += (u_int32_t) run[(*off)++] << (i << 3); 188526f3deacStedu 188626f3deacStedu return (0); 188726f3deacStedu } 188826f3deacStedu #endif 188926f3deacStedu 189026f3deacStedu /* 189126f3deacStedu * Process fixup routine on given buffer. 189226f3deacStedu */ 189326f3deacStedu int 189426f3deacStedu ntfs_procfixups( 189526f3deacStedu struct ntfsmount * ntmp, 189626f3deacStedu u_int32_t magic, 189726f3deacStedu caddr_t buf, 189826f3deacStedu size_t len) 189926f3deacStedu { 190026f3deacStedu struct fixuphdr *fhp = (struct fixuphdr *) buf; 190126f3deacStedu int i; 190226f3deacStedu u_int16_t fixup; 190326f3deacStedu u_int16_t *fxp; 190426f3deacStedu u_int16_t *cfxp; 190526f3deacStedu 190626f3deacStedu if (fhp->fh_magic != magic) { 190726f3deacStedu printf("ntfs_procfixups: magic doesn't match: %08x != %08x\n", 190826f3deacStedu fhp->fh_magic, magic); 190926f3deacStedu return (EINVAL); 191026f3deacStedu } 191126f3deacStedu if ((fhp->fh_fnum - 1) * ntmp->ntm_bps != len) { 191226f3deacStedu printf("ntfs_procfixups: " \ 191326f3deacStedu "bad fixups number: %d for %ld bytes block\n", 191426f3deacStedu fhp->fh_fnum, (long)len); /* XXX printf kludge */ 191526f3deacStedu return (EINVAL); 191626f3deacStedu } 191726f3deacStedu if (fhp->fh_foff >= ntmp->ntm_spc * ntmp->ntm_mftrecsz * ntmp->ntm_bps) { 191826f3deacStedu printf("ntfs_procfixups: invalid offset: %x", fhp->fh_foff); 191926f3deacStedu return (EINVAL); 192026f3deacStedu } 192126f3deacStedu fxp = (u_int16_t *) (buf + fhp->fh_foff); 192226f3deacStedu cfxp = (u_int16_t *) (buf + ntmp->ntm_bps - 2); 192326f3deacStedu fixup = *fxp++; 192426f3deacStedu for (i = 1; i < fhp->fh_fnum; i++, fxp++) { 192526f3deacStedu if (*cfxp != fixup) { 192626f3deacStedu printf("ntfs_procfixups: fixup %d doesn't match\n", i); 192726f3deacStedu return (EINVAL); 192826f3deacStedu } 192926f3deacStedu *cfxp = *fxp; 1930835c1779Sbrad cfxp = (u_int16_t *)((caddr_t)cfxp + ntmp->ntm_bps); 193126f3deacStedu } 193226f3deacStedu return (0); 193326f3deacStedu } 193426f3deacStedu 193526f3deacStedu #if UNUSED_CODE 193626f3deacStedu int 193726f3deacStedu ntfs_runtocn( 193826f3deacStedu cn_t * cn, 193926f3deacStedu struct ntfsmount * ntmp, 194026f3deacStedu u_int8_t * run, 194126f3deacStedu u_long len, 194226f3deacStedu cn_t vcn) 194326f3deacStedu { 194426f3deacStedu cn_t ccn = 0; 194526f3deacStedu cn_t ccl = 0; 194626f3deacStedu u_long off = 0; 194726f3deacStedu int error = 0; 194826f3deacStedu 194926f3deacStedu #if NTFS_DEBUG 195026f3deacStedu int i; 1951846c180eSbrad printf("ntfs_runtocn: run: %p, %ld bytes, vcn:%ld\n", 195226f3deacStedu run, len, (u_long) vcn); 195326f3deacStedu printf("ntfs_runtocn: run: "); 195426f3deacStedu for (i = 0; i < len; i++) 195526f3deacStedu printf("0x%02x ", run[i]); 195626f3deacStedu printf("\n"); 195726f3deacStedu #endif 195826f3deacStedu 195926f3deacStedu if (NULL == run) { 196026f3deacStedu printf("ntfs_runtocn: run == NULL\n"); 196126f3deacStedu return (EINVAL); 196226f3deacStedu } 196326f3deacStedu do { 196426f3deacStedu if (run[off] == 0) { 196526f3deacStedu printf("ntfs_runtocn: vcn too big\n"); 196626f3deacStedu return (E2BIG); 196726f3deacStedu } 196826f3deacStedu vcn -= ccl; 196926f3deacStedu error = ntfs_parserun(&ccn, &ccl, run, len, &off); 197026f3deacStedu if (error) { 197126f3deacStedu printf("ntfs_runtocn: ntfs_parserun failed\n"); 197226f3deacStedu return (error); 197326f3deacStedu } 197426f3deacStedu } while (ccl <= vcn); 197526f3deacStedu *cn = ccn + vcn; 197626f3deacStedu return (0); 197726f3deacStedu } 197826f3deacStedu #endif 197926f3deacStedu 198026f3deacStedu /* 198126f3deacStedu * this initializes toupper table & dependant variables to be ready for 198226f3deacStedu * later work 198326f3deacStedu */ 198426f3deacStedu void 198526f3deacStedu ntfs_toupper_init() 198626f3deacStedu { 198726f3deacStedu ntfs_toupper_tab = (wchar *) NULL; 198826f3deacStedu ntfs_toupper_usecount = 0; 198926f3deacStedu } 199026f3deacStedu 199126f3deacStedu /* 199226f3deacStedu * if the ntfs_toupper_tab[] is filled already, just raise use count; 199326f3deacStedu * otherwise read the data from the filesystem we are currently mounting 199426f3deacStedu */ 199526f3deacStedu int 199626f3deacStedu ntfs_toupper_use(mp, ntmp, p) 199726f3deacStedu struct mount *mp; 199826f3deacStedu struct ntfsmount *ntmp; 199926f3deacStedu struct proc *p; 200026f3deacStedu { 200126f3deacStedu int error = 0; 200226f3deacStedu struct vnode *vp; 200326f3deacStedu 200426f3deacStedu /* get exclusive access */ 2005c74ceabfSoga rw_enter_write(&ntfs_toupper_lock); 200626f3deacStedu 200726f3deacStedu /* only read the translation data from a file if it hasn't been 200826f3deacStedu * read already */ 200926f3deacStedu if (ntfs_toupper_tab) 201026f3deacStedu goto out; 201126f3deacStedu 201226f3deacStedu /* 201326f3deacStedu * Read in Unicode lowercase -> uppercase translation file. 201426f3deacStedu * XXX for now, just the first 256 entries are used anyway, 201526f3deacStedu * so don't bother reading more 201626f3deacStedu */ 2017e8821f89Shshoexer ntfs_toupper_tab = malloc(256 * 256 * sizeof(wchar), M_NTFSRDATA, 2018e8821f89Shshoexer M_WAITOK); 201926f3deacStedu 202026f3deacStedu if ((error = VFS_VGET(mp, NTFS_UPCASEINO, &vp))) 202126f3deacStedu goto out; 202226f3deacStedu error = ntfs_readattr(ntmp, VTONT(vp), NTFS_A_DATA, NULL, 202326f3deacStedu 0, 256*256*sizeof(wchar), (char *) ntfs_toupper_tab, 202426f3deacStedu NULL); 202526f3deacStedu vput(vp); 202626f3deacStedu 202726f3deacStedu out: 202826f3deacStedu ntfs_toupper_usecount++; 2029c74ceabfSoga rw_exit_write(&ntfs_toupper_lock); 203026f3deacStedu return (error); 203126f3deacStedu } 203226f3deacStedu 203326f3deacStedu /* 203426f3deacStedu * lower the use count and if it reaches zero, free the memory 203526f3deacStedu * tied by toupper table 203626f3deacStedu */ 203726f3deacStedu void 203826f3deacStedu ntfs_toupper_unuse(p) 203926f3deacStedu struct proc *p; 204026f3deacStedu { 204126f3deacStedu /* get exclusive access */ 2042c74ceabfSoga rw_enter_write(&ntfs_toupper_lock); 204326f3deacStedu 204426f3deacStedu ntfs_toupper_usecount--; 204526f3deacStedu if (ntfs_toupper_usecount == 0) { 2046e8821f89Shshoexer free(ntfs_toupper_tab, M_NTFSRDATA); 204726f3deacStedu ntfs_toupper_tab = NULL; 204826f3deacStedu } 204926f3deacStedu #ifdef DIAGNOSTIC 205026f3deacStedu else if (ntfs_toupper_usecount < 0) { 205126f3deacStedu panic("ntfs_toupper_unuse(): use count negative: %d", 205226f3deacStedu ntfs_toupper_usecount); 205326f3deacStedu } 205426f3deacStedu #endif 205526f3deacStedu 205626f3deacStedu /* release the lock */ 2057c74ceabfSoga rw_exit_write(&ntfs_toupper_lock); 205826f3deacStedu } 2059