1*f2997212Sjsing /* $OpenBSD: ntfs_subr.c,v 1.34 2013/12/02 16:05:07 jsing 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> 35274476fcStedu #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> 43544451c3Sderaadt #include <sys/specdev.h> 4426f3deacStedu 4526f3deacStedu /* #define NTFS_DEBUG 1 */ 4626f3deacStedu #include <ntfs/ntfs.h> 4726f3deacStedu #include <ntfs/ntfsmount.h> 4826f3deacStedu #include <ntfs/ntfs_inode.h> 4926f3deacStedu #include <ntfs/ntfs_vfsops.h> 5026f3deacStedu #include <ntfs/ntfs_subr.h> 5126f3deacStedu #include <ntfs/ntfs_compr.h> 5226f3deacStedu #include <ntfs/ntfs_ihash.h> 5326f3deacStedu 5426f3deacStedu #if defined(NTFS_DEBUG) 5526f3deacStedu int ntfs_debug = NTFS_DEBUG; 5626f3deacStedu #endif 5726f3deacStedu 5826f3deacStedu /* Local struct used in ntfs_ntlookupfile() */ 5926f3deacStedu struct ntfs_lookup_ctx { 6026f3deacStedu u_int32_t aoff; 6126f3deacStedu u_int32_t rdsize; 6226f3deacStedu cn_t cn; 6326f3deacStedu struct ntfs_lookup_ctx *prev; 6426f3deacStedu }; 6526f3deacStedu 6605c5dae5Sjsing int ntfs_ntlookupattr(struct ntfsmount *, const char *, int, int *, char **); 6705c5dae5Sjsing int ntfs_findvattr(struct ntfsmount *, struct ntnode *, struct ntvattr **, struct ntvattr **, u_int32_t, const char *, size_t, cn_t); 6805c5dae5Sjsing int ntfs_uastricmp(struct ntfsmount *, const wchar *, size_t, const char *, size_t); 6905c5dae5Sjsing int ntfs_uastrcmp(struct ntfsmount *, const wchar *, size_t, const char *, size_t); 7026f3deacStedu 71274476fcStedu /* table for mapping Unicode chars into uppercase; it's filled upon first 72274476fcStedu * ntfs mount, freed upon last ntfs umount */ 7326f3deacStedu static wchar *ntfs_toupper_tab; 7426f3deacStedu #define NTFS_U28(ch) ((((ch) & 0xE0) == 0) ? '_' : (ch) & 0xFF) 7526f3deacStedu #define NTFS_TOUPPER(ch) (ntfs_toupper_tab[(unsigned char)(ch)]) 76274476fcStedu struct rwlock ntfs_toupper_lock = RWLOCK_INITIALIZER("ntfs_toupper"); 77274476fcStedu static signed int ntfs_toupper_usecount; 7826f3deacStedu 7926f3deacStedu /* support macro for ntfs_ntvattrget() */ 8026f3deacStedu #define NTFS_AALPCMP(aalp,type,name,namelen) ( \ 8126f3deacStedu (aalp->al_type == type) && (aalp->al_namelen == namelen) && \ 8226f3deacStedu !ntfs_uastrcmp(ntmp, aalp->al_name,aalp->al_namelen,name,namelen) ) 8326f3deacStedu 8426f3deacStedu /* 8526f3deacStedu * 8626f3deacStedu */ 8726f3deacStedu int 881cc0505dSjsing ntfs_ntvattrrele(struct ntvattr *vap) 8926f3deacStedu { 90*f2997212Sjsing DPRINTF("ntfs_ntvattrrele: ino: %u, type: 0x%x\n", 91a1ea65c6Sjsing vap->va_ip->i_number, vap->va_type); 9226f3deacStedu 9326f3deacStedu ntfs_ntrele(vap->va_ip); 9426f3deacStedu 9526f3deacStedu return (0); 9626f3deacStedu } 9726f3deacStedu 9826f3deacStedu /* 9926f3deacStedu * find the attribute in the ntnode 10026f3deacStedu */ 10105c5dae5Sjsing int 1021cc0505dSjsing ntfs_findvattr(struct ntfsmount *ntmp, struct ntnode *ip, 1031cc0505dSjsing struct ntvattr **lvapp, struct ntvattr **vapp, u_int32_t type, 1041cc0505dSjsing const char *name, size_t namelen, cn_t vcn) 10526f3deacStedu { 10626f3deacStedu int error; 10726f3deacStedu struct ntvattr *vap; 10826f3deacStedu 10926f3deacStedu if((ip->i_flag & IN_LOADED) == 0) { 110*f2997212Sjsing DPRINTF("ntfs_findvattr: node not loaded, ino: %u\n", 111a1ea65c6Sjsing ip->i_number); 11226f3deacStedu error = ntfs_loadntnode(ntmp,ip); 11326f3deacStedu if (error) { 11426f3deacStedu printf("ntfs_findvattr: FAILED TO LOAD INO: %d\n", 11526f3deacStedu ip->i_number); 11626f3deacStedu return (error); 11726f3deacStedu } 1188fc6378aSjsing } else { 1198fc6378aSjsing /* Update LRU loaded list. */ 1208fc6378aSjsing TAILQ_REMOVE(&ntmp->ntm_ntnodeq, ip, i_loaded); 1218fc6378aSjsing TAILQ_INSERT_HEAD(&ntmp->ntm_ntnodeq, ip, i_loaded); 12226f3deacStedu } 12326f3deacStedu 12426f3deacStedu *lvapp = NULL; 12526f3deacStedu *vapp = NULL; 1261573508eSmiod LIST_FOREACH(vap, &ip->i_valist, va_list) { 127*f2997212Sjsing DDPRINTF("ntfs_findvattr: type: 0x%x, vcn: %llu - %llu\n", 128*f2997212Sjsing vap->va_type, vap->va_vcnstart, vap->va_vcnend); 12926f3deacStedu if ((vap->va_type == type) && 13026f3deacStedu (vap->va_vcnstart <= vcn) && (vap->va_vcnend >= vcn) && 13126f3deacStedu (vap->va_namelen == namelen) && 13226f3deacStedu (strncmp(name, vap->va_name, namelen) == 0)) { 13326f3deacStedu *vapp = vap; 13426f3deacStedu ntfs_ntref(vap->va_ip); 13526f3deacStedu return (0); 13626f3deacStedu } 13726f3deacStedu if (vap->va_type == NTFS_A_ATTRLIST) 13826f3deacStedu *lvapp = vap; 13926f3deacStedu } 14026f3deacStedu 14126f3deacStedu return (-1); 14226f3deacStedu } 14326f3deacStedu 14426f3deacStedu /* 14526f3deacStedu * Search attribute specified in ntnode (load ntnode if necessary). 14626f3deacStedu * If not found but ATTR_A_ATTRLIST present, read it in and search through. 147cec6d865Smiod * VOP_VGET node needed, and lookup through its ntnode (load if necessary). 14826f3deacStedu * 14926f3deacStedu * ntnode should be locked 15026f3deacStedu */ 15126f3deacStedu int 1521cc0505dSjsing ntfs_ntvattrget(struct ntfsmount *ntmp, struct ntnode *ip, u_int32_t type, 1531cc0505dSjsing const char *name, cn_t vcn, struct ntvattr **vapp) 15426f3deacStedu { 15526f3deacStedu struct ntvattr *lvap = NULL; 15626f3deacStedu struct attr_attrlist *aalp; 15726f3deacStedu struct attr_attrlist *nextaalp; 15826f3deacStedu struct vnode *newvp; 15926f3deacStedu struct ntnode *newip; 16026f3deacStedu caddr_t alpool; 16126f3deacStedu size_t namelen, len; 16226f3deacStedu int error; 16326f3deacStedu 16426f3deacStedu *vapp = NULL; 16526f3deacStedu 16626f3deacStedu if (name) { 167*f2997212Sjsing DPRINTF("ntfs_ntvattrget: ino: %u, type: 0x%x, name: %s, " 168*f2997212Sjsing "vcn: %llu\n", ip->i_number, type, name, vcn); 16926f3deacStedu namelen = strlen(name); 17026f3deacStedu } else { 171*f2997212Sjsing DPRINTF("ntfs_ntvattrget: ino: %u, type: 0x%x, vcn: %llu\n", 172*f2997212Sjsing ip->i_number, type, vcn); 17326f3deacStedu name = ""; 17426f3deacStedu namelen = 0; 17526f3deacStedu } 17626f3deacStedu 17726f3deacStedu error = ntfs_findvattr(ntmp, ip, &lvap, vapp, type, name, namelen, vcn); 17826f3deacStedu if (error >= 0) 17926f3deacStedu return (error); 18026f3deacStedu 18126f3deacStedu if (!lvap) { 182*f2997212Sjsing DPRINTF("ntfs_ntvattrget: UNEXISTED ATTRIBUTE: ino: %u, " 183*f2997212Sjsing "type: 0x%x, name: %s, vcn: %llu\n", ip->i_number, type, 184*f2997212Sjsing name, vcn); 18526f3deacStedu return (ENOENT); 18626f3deacStedu } 18726f3deacStedu /* Scan $ATTRIBUTE_LIST for requested attribute */ 18826f3deacStedu len = lvap->va_datalen; 189c6c302e5Stedu alpool = malloc(len, M_TEMP, M_WAITOK); 19026f3deacStedu error = ntfs_readntvattr_plain(ntmp, ip, lvap, 0, len, alpool, &len, 19126f3deacStedu NULL); 19226f3deacStedu if (error) 19326f3deacStedu goto out; 19426f3deacStedu 19526f3deacStedu aalp = (struct attr_attrlist *) alpool; 19626f3deacStedu nextaalp = NULL; 19726f3deacStedu 19826f3deacStedu for(; len > 0; aalp = nextaalp) { 199*f2997212Sjsing DPRINTF("ntfs_ntvattrget: attrlist: ino: %u, attr: 0x%x, " 200*f2997212Sjsing "vcn: %llu\n", aalp->al_inumber, aalp->al_type, 201*f2997212Sjsing aalp->al_vcnstart); 20226f3deacStedu 20326f3deacStedu if (len > aalp->reclen) { 20426f3deacStedu nextaalp = NTFS_NEXTREC(aalp, struct attr_attrlist *); 20526f3deacStedu } else { 20626f3deacStedu nextaalp = NULL; 20726f3deacStedu } 20826f3deacStedu len -= aalp->reclen; 20926f3deacStedu 21026f3deacStedu if (!NTFS_AALPCMP(aalp, type, name, namelen) || 21126f3deacStedu (nextaalp && (nextaalp->al_vcnstart <= vcn) && 21226f3deacStedu NTFS_AALPCMP(nextaalp, type, name, namelen))) 21326f3deacStedu continue; 21426f3deacStedu 215*f2997212Sjsing DPRINTF("ntfs_ntvattrget: attribute in ino: %u\n", 216a1ea65c6Sjsing aalp->al_inumber); 21726f3deacStedu 21826f3deacStedu /* this is not a main record, so we can't use just plain 21926f3deacStedu vget() */ 22026f3deacStedu error = ntfs_vgetex(ntmp->ntm_mountp, aalp->al_inumber, 22126f3deacStedu NTFS_A_DATA, NULL, LK_EXCLUSIVE, 22226f3deacStedu VG_EXT, curproc, &newvp); 22326f3deacStedu if (error) { 22426f3deacStedu printf("ntfs_ntvattrget: CAN'T VGET INO: %d\n", 22526f3deacStedu aalp->al_inumber); 22626f3deacStedu goto out; 22726f3deacStedu } 22826f3deacStedu newip = VTONT(newvp); 22926f3deacStedu /* XXX have to lock ntnode */ 23026f3deacStedu error = ntfs_findvattr(ntmp, newip, &lvap, vapp, 23126f3deacStedu type, name, namelen, vcn); 23226f3deacStedu vput(newvp); 23326f3deacStedu if (error == 0) 23426f3deacStedu goto out; 23526f3deacStedu printf("ntfs_ntvattrget: ATTRLIST ERROR.\n"); 23626f3deacStedu break; 23726f3deacStedu } 23826f3deacStedu error = ENOENT; 23926f3deacStedu 240*f2997212Sjsing DPRINTF("ntfs_ntvattrget: UNEXISTED ATTRIBUTE: ino: %u, type: 0x%x, " 241*f2997212Sjsing "name: %.*s, vcn: %llu\n", ip->i_number, type, 242*f2997212Sjsing (unsigned int)namelen, name, vcn); 24326f3deacStedu out: 24426f3deacStedu free(alpool, M_TEMP); 24526f3deacStedu return (error); 24626f3deacStedu } 24726f3deacStedu 24826f3deacStedu /* 24926f3deacStedu * Read ntnode from disk, make ntvattr list. 25026f3deacStedu * 25126f3deacStedu * ntnode should be locked 25226f3deacStedu */ 25326f3deacStedu int 2541cc0505dSjsing ntfs_loadntnode(struct ntfsmount *ntmp, struct ntnode *ip) 25526f3deacStedu { 2568fc6378aSjsing struct ntnode *oip; 2578fc6378aSjsing struct ntvattr *vap; 25826f3deacStedu struct filerec *mfrp; 2598fc6378aSjsing struct attr *ap; 2601abdbfdeSderaadt daddr_t bn; 26126f3deacStedu int error,off; 26226f3deacStedu 263*f2997212Sjsing DPRINTF("ntfs_loadntnode: loading ino: %u\n", ip->i_number); 26426f3deacStedu 2658fc6378aSjsing KASSERT((ip->i_flag & IN_LOADED) == 0); 2668fc6378aSjsing 2678fc6378aSjsing if (ntmp->ntm_ntnodes >= LOADED_NTNODE_HI) { 2688fc6378aSjsing oip = TAILQ_LAST(&ntmp->ntm_ntnodeq, ntnodeq); 2698fc6378aSjsing TAILQ_REMOVE(&ntmp->ntm_ntnodeq, oip, i_loaded); 2708fc6378aSjsing ntmp->ntm_ntnodes--; 2718fc6378aSjsing 272*f2997212Sjsing DPRINTF("ntfs_loadntnode: unloading ino: %u\n", oip->i_number); 2738fc6378aSjsing 2748fc6378aSjsing KASSERT((oip->i_flag & IN_LOADED)); 2758fc6378aSjsing oip->i_flag &= ~IN_LOADED; 2768fc6378aSjsing while ((vap = LIST_FIRST(&oip->i_valist)) != NULL) { 2778fc6378aSjsing LIST_REMOVE(vap, va_list); 2788fc6378aSjsing ntfs_freentvattr(vap); 2798fc6378aSjsing } 2808fc6378aSjsing } 2818fc6378aSjsing 282c6c302e5Stedu mfrp = malloc(ntfs_bntob(ntmp->ntm_bpmftrec), M_TEMP, M_WAITOK); 28326f3deacStedu 28426f3deacStedu if (ip->i_number < NTFS_SYSNODESNUM) { 28526f3deacStedu struct buf *bp; 28626f3deacStedu 287a1ea65c6Sjsing DPRINTF("ntfs_loadntnode: read system node\n"); 28826f3deacStedu 28926f3deacStedu bn = ntfs_cntobn(ntmp->ntm_mftcn) + 29026f3deacStedu ntmp->ntm_bpmftrec * ip->i_number; 29126f3deacStedu 29293f62a9eStedu error = bread(ntmp->ntm_devvp, bn, 29393f62a9eStedu ntfs_bntob(ntmp->ntm_bpmftrec), &bp); 29426f3deacStedu if (error) { 29526f3deacStedu printf("ntfs_loadntnode: BREAD FAILED\n"); 29626f3deacStedu brelse(bp); 29726f3deacStedu goto out; 29826f3deacStedu } 29926f3deacStedu memcpy(mfrp, bp->b_data, ntfs_bntob(ntmp->ntm_bpmftrec)); 300c6c302e5Stedu brelse(bp); 30126f3deacStedu } else { 30226f3deacStedu struct vnode *vp; 30326f3deacStedu 30426f3deacStedu vp = ntmp->ntm_sysvn[NTFS_MFTINO]; 30526f3deacStedu error = ntfs_readattr(ntmp, VTONT(vp), NTFS_A_DATA, NULL, 30626f3deacStedu ip->i_number * ntfs_bntob(ntmp->ntm_bpmftrec), 30726f3deacStedu ntfs_bntob(ntmp->ntm_bpmftrec), mfrp, NULL); 30826f3deacStedu if (error) { 30926f3deacStedu printf("ntfs_loadntnode: ntfs_readattr failed\n"); 31026f3deacStedu goto out; 31126f3deacStedu } 31226f3deacStedu } 31326f3deacStedu 31426f3deacStedu /* Check if magic and fixups are correct */ 31526f3deacStedu error = ntfs_procfixups(ntmp, NTFS_FILEMAGIC, (caddr_t)mfrp, 31626f3deacStedu ntfs_bntob(ntmp->ntm_bpmftrec)); 31726f3deacStedu if (error) { 31826f3deacStedu printf("ntfs_loadntnode: BAD MFT RECORD %d\n", 31926f3deacStedu (u_int32_t) ip->i_number); 32026f3deacStedu goto out; 32126f3deacStedu } 32226f3deacStedu 323*f2997212Sjsing DPRINTF("ntfs_loadntnode: load attrs for ino: %u\n", ip->i_number); 32426f3deacStedu off = mfrp->fr_attroff; 32526f3deacStedu ap = (struct attr *) ((caddr_t)mfrp + off); 32626f3deacStedu 32726f3deacStedu LIST_INIT(&ip->i_valist); 32826f3deacStedu 32926f3deacStedu while (ap->a_hdr.a_type != -1) { 3308fc6378aSjsing error = ntfs_attrtontvattr(ntmp, &vap, ap); 33126f3deacStedu if (error) 33226f3deacStedu break; 3338fc6378aSjsing vap->va_ip = ip; 33426f3deacStedu 3358fc6378aSjsing LIST_INSERT_HEAD(&ip->i_valist, vap, va_list); 33626f3deacStedu 33726f3deacStedu off += ap->a_hdr.reclen; 33826f3deacStedu ap = (struct attr *) ((caddr_t)mfrp + off); 33926f3deacStedu } 34026f3deacStedu if (error) { 34126f3deacStedu printf("ntfs_loadntnode: failed to load attr ino: %d\n", 34226f3deacStedu ip->i_number); 34326f3deacStedu goto out; 34426f3deacStedu } 34526f3deacStedu 34626f3deacStedu ip->i_mainrec = mfrp->fr_mainrec; 34726f3deacStedu ip->i_nlink = mfrp->fr_nlink; 34826f3deacStedu ip->i_frflag = mfrp->fr_flags; 34926f3deacStedu 35026f3deacStedu ip->i_flag |= IN_LOADED; 35126f3deacStedu 3528fc6378aSjsing /* Add to loaded list. */ 3538fc6378aSjsing TAILQ_INSERT_HEAD(&ntmp->ntm_ntnodeq, ip, i_loaded); 3548fc6378aSjsing ntmp->ntm_ntnodes++; 3558fc6378aSjsing 35626f3deacStedu out: 35726f3deacStedu free(mfrp, M_TEMP); 35826f3deacStedu return (error); 35926f3deacStedu } 36026f3deacStedu 36126f3deacStedu /* 36226f3deacStedu * Routine locks ntnode and increase usecount, just opposite of 36326f3deacStedu * ntfs_ntput(). 36426f3deacStedu */ 36526f3deacStedu int 3661cc0505dSjsing ntfs_ntget(struct ntnode *ip, struct proc *p) 36726f3deacStedu { 368*f2997212Sjsing DPRINTF("ntfs_ntget: get ntnode %u: %p, usecount: %d\n", 369a1ea65c6Sjsing ip->i_number, ip, ip->i_usecount); 37026f3deacStedu 37126f3deacStedu ip->i_usecount++; 3722752fedbSpedro 373c74ceabfSoga rw_enter_write(&ip->i_lock); 37426f3deacStedu 37526f3deacStedu return 0; 37626f3deacStedu } 37726f3deacStedu 37826f3deacStedu /* 37926f3deacStedu * Routine search ntnode in hash, if found: lock, inc usecount and return. 38026f3deacStedu * If not in hash allocate structure for ntnode, prefill it, lock, 38126f3deacStedu * inc count and return. 38226f3deacStedu * 38326f3deacStedu * ntnode returned locked 38426f3deacStedu */ 38526f3deacStedu int 38695a73601Sguenther ntfs_ntlookup(struct ntfsmount *ntmp, ntfsino_t ino, struct ntnode **ipp, 38726f3deacStedu struct proc *p) 38826f3deacStedu { 38926f3deacStedu struct ntnode *ip; 39026f3deacStedu 391*f2997212Sjsing DPRINTF("ntfs_ntlookup: looking for ntnode %u\n", ino); 39226f3deacStedu 39326f3deacStedu do { 39426f3deacStedu if ((ip = ntfs_nthashlookup(ntmp->ntm_dev, ino)) != NULL) { 39526f3deacStedu ntfs_ntget(ip, p); 396*f2997212Sjsing DPRINTF("ntfs_ntlookup: ntnode %u: %p, usecount: %d\n", 397a1ea65c6Sjsing ino, ip, ip->i_usecount); 39826f3deacStedu *ipp = ip; 39926f3deacStedu return (0); 40026f3deacStedu } 401c74ceabfSoga } while (rw_enter(&ntfs_hashlock, RW_WRITE | RW_SLEEPFAIL)); 40226f3deacStedu 403c86f0003Skrw ip = malloc(sizeof(*ip), M_NTFSNTNODE, M_WAITOK | M_ZERO); 404*f2997212Sjsing DDPRINTF("ntfs_ntlookup: allocating ntnode: %u: %p\n", ino, ip); 40526f3deacStedu 40626f3deacStedu /* Generic initialization */ 40726f3deacStedu ip->i_devvp = ntmp->ntm_devvp; 40826f3deacStedu ip->i_dev = ntmp->ntm_dev; 40926f3deacStedu ip->i_number = ino; 41026f3deacStedu ip->i_mp = ntmp; 41126f3deacStedu 41226f3deacStedu LIST_INIT(&ip->i_fnlist); 413627b2c48Sthib vref(ip->i_devvp); 41426f3deacStedu 41526f3deacStedu /* init lock and lock the newborn ntnode */ 416c74ceabfSoga rw_init(&ip->i_lock, "ntnode"); 41726f3deacStedu ntfs_ntget(ip, p); 41826f3deacStedu 41926f3deacStedu ntfs_nthashins(ip); 42026f3deacStedu 421c74ceabfSoga rw_exit(&ntfs_hashlock); 42226f3deacStedu 42326f3deacStedu *ipp = ip; 42426f3deacStedu 425*f2997212Sjsing DPRINTF("ntfs_ntlookup: ntnode %u: %p, usecount: %d\n", 426a1ea65c6Sjsing ino, ip, ip->i_usecount); 42726f3deacStedu 42826f3deacStedu return (0); 42926f3deacStedu } 43026f3deacStedu 43126f3deacStedu /* 43226f3deacStedu * Decrement usecount of ntnode and unlock it, if usecount reach zero, 43326f3deacStedu * deallocate ntnode. 43426f3deacStedu * 43526f3deacStedu * ntnode should be locked on entry, and unlocked on return. 43626f3deacStedu */ 43726f3deacStedu void 4381cc0505dSjsing ntfs_ntput(struct ntnode *ip, struct proc *p) 43926f3deacStedu { 4408fc6378aSjsing struct ntfsmount *ntmp = ip->i_mp; 44126f3deacStedu struct ntvattr *vap; 44226f3deacStedu 443*f2997212Sjsing DPRINTF("ntfs_ntput: rele ntnode %u: %p, usecount: %d\n", 444a1ea65c6Sjsing ip->i_number, ip, ip->i_usecount); 44526f3deacStedu 44626f3deacStedu ip->i_usecount--; 44726f3deacStedu 44826f3deacStedu #ifdef DIAGNOSTIC 44926f3deacStedu if (ip->i_usecount < 0) { 45026f3deacStedu panic("ntfs_ntput: ino: %d usecount: %d ", 45126f3deacStedu ip->i_number,ip->i_usecount); 45226f3deacStedu } 45326f3deacStedu #endif 45426f3deacStedu 4559b32ea3cSpat if (ip->i_usecount > 0) { 456c74ceabfSoga rw_exit_write(&ip->i_lock); 4579b32ea3cSpat return; 4589b32ea3cSpat } 45926f3deacStedu 460*f2997212Sjsing DPRINTF("ntfs_ntput: deallocating ntnode: %u\n", ip->i_number); 46126f3deacStedu 4629b32ea3cSpat if (LIST_FIRST(&ip->i_fnlist)) 46326f3deacStedu panic("ntfs_ntput: ntnode has fnodes"); 46426f3deacStedu 46526f3deacStedu ntfs_nthashrem(ip); 46626f3deacStedu 4678fc6378aSjsing /* Remove from loaded list. */ 4688fc6378aSjsing if (ip->i_flag & IN_LOADED) { 4698fc6378aSjsing TAILQ_REMOVE(&ntmp->ntm_ntnodeq, ip, i_loaded); 4708fc6378aSjsing ntmp->ntm_ntnodes--; 4718fc6378aSjsing } 4728fc6378aSjsing 4739b32ea3cSpat while ((vap = LIST_FIRST(&ip->i_valist)) != NULL) { 47426f3deacStedu LIST_REMOVE(vap, va_list); 47526f3deacStedu ntfs_freentvattr(vap); 47626f3deacStedu } 4779b32ea3cSpat 4789b32ea3cSpat vrele(ip->i_devvp); 4792f33a180Skrw free(ip, M_NTFSNTNODE); 48026f3deacStedu } 48126f3deacStedu 48226f3deacStedu /* 48326f3deacStedu * increment usecount of ntnode 48426f3deacStedu */ 48526f3deacStedu void 4861cc0505dSjsing ntfs_ntref(struct ntnode *ip) 48726f3deacStedu { 48826f3deacStedu ip->i_usecount++; 48926f3deacStedu 490*f2997212Sjsing DPRINTF("ntfs_ntref: ino %u, usecount: %d\n", 491a1ea65c6Sjsing ip->i_number, ip->i_usecount); 49226f3deacStedu } 49326f3deacStedu 49426f3deacStedu /* 49526f3deacStedu * Decrement usecount of ntnode. 49626f3deacStedu */ 49726f3deacStedu void 4981cc0505dSjsing ntfs_ntrele(struct ntnode *ip) 49926f3deacStedu { 500*f2997212Sjsing DPRINTF("ntfs_ntrele: rele ntnode %u: %p, usecount: %d\n", 501a1ea65c6Sjsing ip->i_number, ip, ip->i_usecount); 50226f3deacStedu 50326f3deacStedu ip->i_usecount--; 50426f3deacStedu 50526f3deacStedu if (ip->i_usecount < 0) 50626f3deacStedu panic("ntfs_ntrele: ino: %d usecount: %d ", 50726f3deacStedu ip->i_number,ip->i_usecount); 50826f3deacStedu } 50926f3deacStedu 51026f3deacStedu /* 51126f3deacStedu * Deallocate all memory allocated for ntvattr 51226f3deacStedu */ 51326f3deacStedu void 5141cc0505dSjsing ntfs_freentvattr(struct ntvattr *vap) 51526f3deacStedu { 51626f3deacStedu if (vap->va_flag & NTFS_AF_INRUN) { 51726f3deacStedu if (vap->va_vruncn) 51826f3deacStedu free(vap->va_vruncn, M_NTFSRUN); 51926f3deacStedu if (vap->va_vruncl) 52026f3deacStedu free(vap->va_vruncl, M_NTFSRUN); 52126f3deacStedu } else { 52226f3deacStedu if (vap->va_datap) 52326f3deacStedu free(vap->va_datap, M_NTFSRDATA); 52426f3deacStedu } 5252f33a180Skrw free(vap, M_NTFSNTVATTR); 52626f3deacStedu } 52726f3deacStedu 52826f3deacStedu /* 52926f3deacStedu * Convert disk image of attribute into ntvattr structure, 53026f3deacStedu * runs are expanded also. 53126f3deacStedu */ 53226f3deacStedu int 5331cc0505dSjsing ntfs_attrtontvattr(struct ntfsmount *ntmp, struct ntvattr **rvapp, 53426f3deacStedu struct attr *rap) 53526f3deacStedu { 53626f3deacStedu int error, i; 53726f3deacStedu struct ntvattr *vap; 53826f3deacStedu 53926f3deacStedu error = 0; 54026f3deacStedu *rvapp = NULL; 54126f3deacStedu 542c86f0003Skrw vap = malloc(sizeof(*vap), M_NTFSNTVATTR, M_WAITOK | M_ZERO); 54326f3deacStedu vap->va_ip = NULL; 54426f3deacStedu vap->va_flag = rap->a_hdr.a_flag; 54526f3deacStedu vap->va_type = rap->a_hdr.a_type; 54626f3deacStedu vap->va_compression = rap->a_hdr.a_compression; 54726f3deacStedu vap->va_index = rap->a_hdr.a_index; 54826f3deacStedu 549*f2997212Sjsing DDPRINTF("type: 0x%x, index: %u", vap->va_type, vap->va_index); 55026f3deacStedu 55126f3deacStedu vap->va_namelen = rap->a_hdr.a_namelen; 55226f3deacStedu if (rap->a_hdr.a_namelen) { 55326f3deacStedu wchar *unp = (wchar *) ((caddr_t) rap + rap->a_hdr.a_nameoff); 554a1ea65c6Sjsing DDPRINTF(", name:["); 55526f3deacStedu for (i = 0; i < vap->va_namelen; i++) { 55626f3deacStedu vap->va_name[i] = unp[i]; 557a1ea65c6Sjsing DDPRINTF("%c", vap->va_name[i]); 55826f3deacStedu } 559a1ea65c6Sjsing DDPRINTF("]"); 56026f3deacStedu } 56126f3deacStedu if (vap->va_flag & NTFS_AF_INRUN) { 562a1ea65c6Sjsing DDPRINTF(", nonres."); 56326f3deacStedu vap->va_datalen = rap->a_nr.a_datalen; 56426f3deacStedu vap->va_allocated = rap->a_nr.a_allocated; 56526f3deacStedu vap->va_vcnstart = rap->a_nr.a_vcnstart; 56626f3deacStedu vap->va_vcnend = rap->a_nr.a_vcnend; 56726f3deacStedu vap->va_compressalg = rap->a_nr.a_compressalg; 56826f3deacStedu error = ntfs_runtovrun(&(vap->va_vruncn), &(vap->va_vruncl), 56926f3deacStedu &(vap->va_vruncnt), 57026f3deacStedu (caddr_t) rap + rap->a_nr.a_dataoff); 57126f3deacStedu } else { 57226f3deacStedu vap->va_compressalg = 0; 573a1ea65c6Sjsing DDPRINTF(", res."); 57426f3deacStedu vap->va_datalen = rap->a_r.a_datalen; 57526f3deacStedu vap->va_allocated = rap->a_r.a_datalen; 57626f3deacStedu vap->va_vcnstart = 0; 57726f3deacStedu vap->va_vcnend = ntfs_btocn(vap->va_allocated); 578c6c302e5Stedu vap->va_datap = malloc(vap->va_datalen, M_NTFSRDATA, M_WAITOK); 57926f3deacStedu memcpy(vap->va_datap, (caddr_t) rap + rap->a_r.a_dataoff, 58026f3deacStedu rap->a_r.a_datalen); 58126f3deacStedu } 582*f2997212Sjsing DDPRINTF(", len: %u", vap->va_datalen); 58326f3deacStedu 58426f3deacStedu if (error) 5852f33a180Skrw free(vap, M_NTFSNTVATTR); 58626f3deacStedu else 58726f3deacStedu *rvapp = vap; 58826f3deacStedu 589a1ea65c6Sjsing DDPRINTF("\n"); 59026f3deacStedu 59126f3deacStedu return (error); 59226f3deacStedu } 59326f3deacStedu 59426f3deacStedu /* 59526f3deacStedu * Expand run into more utilizable and more memory eating format. 59626f3deacStedu */ 59726f3deacStedu int 5981cc0505dSjsing ntfs_runtovrun(cn_t **rcnp, cn_t **rclp, u_long *rcntp, u_int8_t *run) 59926f3deacStedu { 60026f3deacStedu u_int32_t off; 60126f3deacStedu u_int32_t sz, i; 60226f3deacStedu cn_t *cn; 60326f3deacStedu cn_t *cl; 60426f3deacStedu u_long cnt; 60526f3deacStedu cn_t prev; 60626f3deacStedu cn_t tmp; 60726f3deacStedu 60826f3deacStedu off = 0; 60926f3deacStedu cnt = 0; 61026f3deacStedu i = 0; 61126f3deacStedu while (run[off]) { 61226f3deacStedu off += (run[off] & 0xF) + ((run[off] >> 4) & 0xF) + 1; 61326f3deacStedu cnt++; 61426f3deacStedu } 615c6c302e5Stedu cn = malloc(cnt * sizeof(cn_t), M_NTFSRUN, M_WAITOK); 616c6c302e5Stedu cl = malloc(cnt * sizeof(cn_t), M_NTFSRUN, M_WAITOK); 61726f3deacStedu 61826f3deacStedu off = 0; 61926f3deacStedu cnt = 0; 62026f3deacStedu prev = 0; 62126f3deacStedu while (run[off]) { 62226f3deacStedu 62326f3deacStedu sz = run[off++]; 62426f3deacStedu cl[cnt] = 0; 62526f3deacStedu 62626f3deacStedu for (i = 0; i < (sz & 0xF); i++) 62726f3deacStedu cl[cnt] += (u_int32_t) run[off++] << (i << 3); 62826f3deacStedu 62926f3deacStedu sz >>= 4; 63026f3deacStedu if (run[off + sz - 1] & 0x80) { 63126f3deacStedu tmp = ((u_int64_t) - 1) << (sz << 3); 63226f3deacStedu for (i = 0; i < sz; i++) 63326f3deacStedu tmp |= (u_int64_t) run[off++] << (i << 3); 63426f3deacStedu } else { 63526f3deacStedu tmp = 0; 63626f3deacStedu for (i = 0; i < sz; i++) 63726f3deacStedu tmp |= (u_int64_t) run[off++] << (i << 3); 63826f3deacStedu } 63926f3deacStedu if (tmp) 64026f3deacStedu prev = cn[cnt] = prev + tmp; 64126f3deacStedu else 64226f3deacStedu cn[cnt] = tmp; 64326f3deacStedu 64426f3deacStedu cnt++; 64526f3deacStedu } 64626f3deacStedu *rcnp = cn; 64726f3deacStedu *rclp = cl; 64826f3deacStedu *rcntp = cnt; 64926f3deacStedu return (0); 65026f3deacStedu } 65126f3deacStedu 65226f3deacStedu /* 65326f3deacStedu * Compare unicode and ascii string case insens. 65426f3deacStedu */ 65505c5dae5Sjsing int 6561cc0505dSjsing ntfs_uastricmp(struct ntfsmount *ntmp, const wchar *ustr, size_t ustrlen, 6571cc0505dSjsing const char *astr, size_t astrlen) 65826f3deacStedu { 65926f3deacStedu size_t i; 66026f3deacStedu int res; 66126f3deacStedu const char *astrend = astr + astrlen; 66226f3deacStedu 66326f3deacStedu for (i = 0; i < ustrlen && astr < astrend; i++) { 66426f3deacStedu res = (*ntmp->ntm_wcmp)(NTFS_TOUPPER(ustr[i]), 66526f3deacStedu NTFS_TOUPPER((*ntmp->ntm_wget)(&astr)) ); 66626f3deacStedu if (res) 66726f3deacStedu return res; 66826f3deacStedu } 66926f3deacStedu 67026f3deacStedu if (i == ustrlen && astr == astrend) 67126f3deacStedu return 0; 67226f3deacStedu else if (i == ustrlen) 67326f3deacStedu return -1; 67426f3deacStedu else 67526f3deacStedu return 1; 67626f3deacStedu } 67726f3deacStedu 67826f3deacStedu /* 67926f3deacStedu * Compare unicode and ascii string case sens. 68026f3deacStedu */ 68105c5dae5Sjsing int 6821cc0505dSjsing ntfs_uastrcmp(struct ntfsmount *ntmp, const wchar *ustr, size_t ustrlen, 6831cc0505dSjsing const char *astr, size_t astrlen) 68426f3deacStedu { 68526f3deacStedu size_t i; 68626f3deacStedu int res; 68726f3deacStedu const char *astrend = astr + astrlen; 68826f3deacStedu 68926f3deacStedu for (i = 0; (i < ustrlen) && (astr < astrend); i++) { 69026f3deacStedu res = (*ntmp->ntm_wcmp)(ustr[i], (*ntmp->ntm_wget)(&astr)); 69126f3deacStedu if (res) 69226f3deacStedu return res; 69326f3deacStedu } 69426f3deacStedu 69526f3deacStedu if (i == ustrlen && astr == astrend) 69626f3deacStedu return 0; 69726f3deacStedu else if (i == ustrlen) 69826f3deacStedu return -1; 69926f3deacStedu else 70026f3deacStedu return 1; 70126f3deacStedu } 70226f3deacStedu 70326f3deacStedu /* 70426f3deacStedu * Search fnode in ntnode, if not found allocate and preinitialize. 70526f3deacStedu * 70626f3deacStedu * ntnode should be locked on entry. 70726f3deacStedu */ 70826f3deacStedu int 7091cc0505dSjsing ntfs_fget(struct ntfsmount *ntmp, struct ntnode *ip, int attrtype, 7101cc0505dSjsing char *attrname, struct fnode **fpp) 71126f3deacStedu { 71226f3deacStedu struct fnode *fp; 71326f3deacStedu 714*f2997212Sjsing DPRINTF("ntfs_fget: ino: %u, attrtype: 0x%x, attrname: %s\n", 715a1ea65c6Sjsing ip->i_number, attrtype, attrname ? attrname : ""); 71626f3deacStedu *fpp = NULL; 7171573508eSmiod LIST_FOREACH(fp, &ip->i_fnlist, f_fnlist) { 718*f2997212Sjsing DPRINTF("ntfs_fget: fnode: attrtype: %u, attrname: %s\n", 719a1ea65c6Sjsing fp->f_attrtype, fp->f_attrname ? fp->f_attrname : ""); 72026f3deacStedu 72126f3deacStedu if ((attrtype == fp->f_attrtype) && 72226f3deacStedu ((!attrname && !fp->f_attrname) || 72326f3deacStedu (attrname && fp->f_attrname && 72426f3deacStedu !strcmp(attrname,fp->f_attrname)))){ 725a1ea65c6Sjsing DPRINTF("ntfs_fget: found existed: %p\n", fp); 72626f3deacStedu *fpp = fp; 72726f3deacStedu } 72826f3deacStedu } 72926f3deacStedu 73026f3deacStedu if (*fpp) 73126f3deacStedu return (0); 73226f3deacStedu 733c86f0003Skrw fp = malloc(sizeof(*fp), M_NTFSFNODE, M_WAITOK | M_ZERO); 734a1ea65c6Sjsing DPRINTF("ntfs_fget: allocating fnode: %p\n", fp); 73526f3deacStedu 73626f3deacStedu fp->f_ip = ip; 73726f3deacStedu fp->f_attrname = attrname; 73826f3deacStedu if (fp->f_attrname) fp->f_flag |= FN_AATTRNAME; 73926f3deacStedu fp->f_attrtype = attrtype; 74026f3deacStedu 74126f3deacStedu ntfs_ntref(ip); 74226f3deacStedu 74326f3deacStedu LIST_INSERT_HEAD(&ip->i_fnlist, fp, f_fnlist); 74426f3deacStedu 74526f3deacStedu *fpp = fp; 74626f3deacStedu 74726f3deacStedu return (0); 74826f3deacStedu } 74926f3deacStedu 75026f3deacStedu /* 75126f3deacStedu * Deallocate fnode, remove it from ntnode's fnode list. 75226f3deacStedu * 75326f3deacStedu * ntnode should be locked. 75426f3deacStedu */ 75526f3deacStedu void 7561cc0505dSjsing ntfs_frele(struct fnode *fp) 75726f3deacStedu { 75826f3deacStedu struct ntnode *ip = FTONT(fp); 75926f3deacStedu 760*f2997212Sjsing DPRINTF("ntfs_frele: fnode: %p for %u: %p\n", fp, ip->i_number, ip); 76126f3deacStedu 762a1ea65c6Sjsing DPRINTF("ntfs_frele: deallocating fnode\n"); 76326f3deacStedu LIST_REMOVE(fp,f_fnlist); 76426f3deacStedu if (fp->f_flag & FN_AATTRNAME) 765e8821f89Shshoexer free(fp->f_attrname, M_TEMP); 76626f3deacStedu if (fp->f_dirblbuf) 767e8821f89Shshoexer free(fp->f_dirblbuf, M_NTFSDIR); 7682f33a180Skrw free(fp, M_NTFSFNODE); 76926f3deacStedu ntfs_ntrele(ip); 77026f3deacStedu } 77126f3deacStedu 77226f3deacStedu /* 77326f3deacStedu * Lookup attribute name in format: [[:$ATTR_TYPE]:$ATTR_NAME], 77426f3deacStedu * $ATTR_TYPE is searched in attrdefs read from $AttrDefs. 77526f3deacStedu * If $ATTR_TYPE not specified, ATTR_A_DATA assumed. 77626f3deacStedu */ 77705c5dae5Sjsing int 7781cc0505dSjsing ntfs_ntlookupattr(struct ntfsmount *ntmp, const char *name, int namelen, 7791cc0505dSjsing int *attrtype, char **attrname) 78026f3deacStedu { 78126f3deacStedu const char *sys; 78226f3deacStedu size_t syslen, i; 78326f3deacStedu struct ntvattrdef *adp; 78426f3deacStedu 78526f3deacStedu if (namelen == 0) 78626f3deacStedu return (0); 78726f3deacStedu 78826f3deacStedu if (name[0] == '$') { 78926f3deacStedu sys = name; 79026f3deacStedu for (syslen = 0; syslen < namelen; syslen++) { 79126f3deacStedu if(sys[syslen] == ':') { 79226f3deacStedu name++; 79326f3deacStedu namelen--; 79426f3deacStedu break; 79526f3deacStedu } 79626f3deacStedu } 79726f3deacStedu name += syslen; 79826f3deacStedu namelen -= syslen; 79926f3deacStedu 80026f3deacStedu adp = ntmp->ntm_ad; 80126f3deacStedu for (i = 0; i < ntmp->ntm_adnum; i++, adp++){ 80226f3deacStedu if (syslen != adp->ad_namelen || 80326f3deacStedu strncmp(sys, adp->ad_name, syslen) != 0) 80426f3deacStedu continue; 80526f3deacStedu 80626f3deacStedu *attrtype = adp->ad_type; 80726f3deacStedu goto out; 80826f3deacStedu } 80926f3deacStedu return (ENOENT); 81026f3deacStedu } 81126f3deacStedu 81226f3deacStedu out: 81326f3deacStedu if (namelen) { 814c6c302e5Stedu *attrname = malloc(namelen + 1, M_TEMP, M_WAITOK); 815c6c302e5Stedu memcpy(*attrname, name, namelen); 81626f3deacStedu (*attrname)[namelen] = '\0'; 81726f3deacStedu *attrtype = NTFS_A_DATA; 81826f3deacStedu } 81926f3deacStedu 82026f3deacStedu return (0); 82126f3deacStedu } 82226f3deacStedu 82326f3deacStedu /* 8241cc0505dSjsing * Lookup specified node for filename, matching cnp, return fnode filled. 82526f3deacStedu */ 82626f3deacStedu int 8271cc0505dSjsing ntfs_ntlookupfile(struct ntfsmount *ntmp, struct vnode *vp, 8281cc0505dSjsing struct componentname *cnp, struct vnode **vpp, struct proc *p) 82926f3deacStedu { 83026f3deacStedu struct fnode *fp = VTOF(vp); 83126f3deacStedu struct ntnode *ip = FTONT(fp); 8326f6d0059Sjsing struct ntvattr *vap = NULL; /* Root attribute */ 83326f3deacStedu cn_t cn = 0; /* VCN in current attribute */ 8346f6d0059Sjsing caddr_t rdbuf = NULL; /* Buffer to read directory's blocks */ 83526f3deacStedu u_int32_t blsize; 83626f3deacStedu u_int32_t rdsize; /* Length of data to read from current block */ 83726f3deacStedu struct attr_indexentry *iep; 83826f3deacStedu int error, res, anamelen, fnamelen; 83926f3deacStedu const char *fname,*aname; 84026f3deacStedu u_int32_t aoff; 84126f3deacStedu int attrtype = NTFS_A_DATA; 84226f3deacStedu char *attrname = NULL; 84326f3deacStedu struct fnode *nfp; 84426f3deacStedu struct vnode *nvp; 84526f3deacStedu enum vtype f_type; 84626f3deacStedu int fullscan = 0; 84726f3deacStedu struct ntfs_lookup_ctx *lookup_ctx = NULL, *tctx; 84826f3deacStedu 84926f3deacStedu error = ntfs_ntget(ip, p); 85026f3deacStedu if (error) 85126f3deacStedu return (error); 85226f3deacStedu 85326f3deacStedu error = ntfs_ntvattrget(ntmp, ip, NTFS_A_INDXROOT, "$I30", 0, &vap); 8546f6d0059Sjsing if (error || (vap->va_flag & NTFS_AF_INRUN)) { 8556f6d0059Sjsing error = ENOTDIR; 8566f6d0059Sjsing goto fail; 8576f6d0059Sjsing } 85826f3deacStedu 85926f3deacStedu /* 86026f3deacStedu * Divide file name into: foofilefoofilefoofile[:attrspec] 86126f3deacStedu * Store like this: fname:fnamelen [aname:anamelen] 86226f3deacStedu */ 86326f3deacStedu fname = cnp->cn_nameptr; 86426f3deacStedu aname = NULL; 86526f3deacStedu anamelen = 0; 86626f3deacStedu for (fnamelen = 0; fnamelen < cnp->cn_namelen; fnamelen++) 86726f3deacStedu if(fname[fnamelen] == ':') { 86826f3deacStedu aname = fname + fnamelen + 1; 86926f3deacStedu anamelen = cnp->cn_namelen - fnamelen - 1; 870a1ea65c6Sjsing DPRINTF("ntfs_ntlookupfile: %s (%d), attr: %s (%d)\n", 871a1ea65c6Sjsing fname, fnamelen, aname, anamelen); 87226f3deacStedu break; 87326f3deacStedu } 87426f3deacStedu 87526f3deacStedu blsize = vap->va_a_iroot->ir_size; 876*f2997212Sjsing DPRINTF("ntfs_ntlookupfile: blksz: %u\n", blsize); 87726f3deacStedu 878c6c302e5Stedu rdbuf = malloc(blsize, M_TEMP, M_WAITOK); 87926f3deacStedu 88026f3deacStedu loop: 88126f3deacStedu rdsize = vap->va_datalen; 882*f2997212Sjsing DPRINTF("ntfs_ntlookupfile: rdsz: %u\n", rdsize); 88326f3deacStedu 88426f3deacStedu error = ntfs_readattr(ntmp, ip, NTFS_A_INDXROOT, "$I30", 88526f3deacStedu 0, rdsize, rdbuf, NULL); 88626f3deacStedu if (error) 88726f3deacStedu goto fail; 88826f3deacStedu 88926f3deacStedu aoff = sizeof(struct attr_indexroot); 89026f3deacStedu 89126f3deacStedu do { 89226f3deacStedu iep = (struct attr_indexentry *) (rdbuf + aoff); 89326f3deacStedu 89426f3deacStedu for (; !(iep->ie_flag & NTFS_IEFLAG_LAST) && (rdsize > aoff); 89526f3deacStedu aoff += iep->reclen, 89626f3deacStedu iep = (struct attr_indexentry *) (rdbuf + aoff)) 89726f3deacStedu { 898*f2997212Sjsing DDPRINTF("scan: %u, %u\n", iep->ie_number, 899*f2997212Sjsing iep->ie_fnametype); 90026f3deacStedu 90126f3deacStedu /* check the name - the case-insensitive check 90226f3deacStedu * has to come first, to break from this for loop 90326f3deacStedu * if needed, so we can dive correctly */ 90426f3deacStedu res = ntfs_uastricmp(ntmp, iep->ie_fname, 90526f3deacStedu iep->ie_fnamelen, fname, fnamelen); 90626f3deacStedu if (!fullscan) { 90726f3deacStedu if (res > 0) break; 90826f3deacStedu if (res < 0) continue; 90926f3deacStedu } 91026f3deacStedu 91126f3deacStedu if (iep->ie_fnametype == 0 || 91226f3deacStedu !(ntmp->ntm_flag & NTFS_MFLAG_CASEINS)) 91326f3deacStedu { 91426f3deacStedu res = ntfs_uastrcmp(ntmp, iep->ie_fname, 91526f3deacStedu iep->ie_fnamelen, fname, fnamelen); 91626f3deacStedu if (res != 0 && !fullscan) continue; 91726f3deacStedu } 91826f3deacStedu 91926f3deacStedu /* if we perform full scan, the file does not match 92026f3deacStedu * and this is subnode, dive */ 92126f3deacStedu if (fullscan && res != 0) { 92226f3deacStedu if (iep->ie_flag & NTFS_IEFLAG_SUBNODE) { 923e8821f89Shshoexer tctx = malloc(sizeof(struct ntfs_lookup_ctx), 92426f3deacStedu M_TEMP, M_WAITOK); 92526f3deacStedu tctx->aoff = aoff + iep->reclen; 92626f3deacStedu tctx->rdsize = rdsize; 92726f3deacStedu tctx->cn = cn; 92826f3deacStedu tctx->prev = lookup_ctx; 92926f3deacStedu lookup_ctx = tctx; 93026f3deacStedu break; 93126f3deacStedu } else 93226f3deacStedu continue; 93326f3deacStedu } 93426f3deacStedu 93526f3deacStedu if (aname) { 93626f3deacStedu error = ntfs_ntlookupattr(ntmp, 93726f3deacStedu aname, anamelen, 93826f3deacStedu &attrtype, &attrname); 93926f3deacStedu if (error) 94026f3deacStedu goto fail; 94126f3deacStedu } 94226f3deacStedu 94326f3deacStedu /* Check if we've found ourselves */ 94426f3deacStedu if ((iep->ie_number == ip->i_number) && 94526f3deacStedu (attrtype == fp->f_attrtype) && 94626f3deacStedu ((!attrname && !fp->f_attrname) || 94726f3deacStedu (attrname && fp->f_attrname && 94826f3deacStedu !strcmp(attrname, fp->f_attrname)))) 94926f3deacStedu { 950627b2c48Sthib vref(vp); 95126f3deacStedu *vpp = vp; 95226f3deacStedu error = 0; 95326f3deacStedu goto fail; 95426f3deacStedu } 95526f3deacStedu 95626f3deacStedu /* free the buffer returned by ntfs_ntlookupattr() */ 95726f3deacStedu if (attrname) { 958e8821f89Shshoexer free(attrname, M_TEMP); 95926f3deacStedu attrname = NULL; 96026f3deacStedu } 96126f3deacStedu 96226f3deacStedu /* vget node, but don't load it */ 96326f3deacStedu error = ntfs_vgetex(ntmp->ntm_mountp, 96426f3deacStedu iep->ie_number, attrtype, attrname, 96526f3deacStedu LK_EXCLUSIVE, VG_DONTLOADIN | VG_DONTVALIDFN, 96626f3deacStedu curproc, &nvp); 96726f3deacStedu if (error) 96826f3deacStedu goto fail; 96926f3deacStedu 97026f3deacStedu nfp = VTOF(nvp); 97126f3deacStedu 97226f3deacStedu if (nfp->f_flag & FN_VALID) { 97326f3deacStedu *vpp = nvp; 97426f3deacStedu goto fail; 97526f3deacStedu } 97626f3deacStedu 97726f3deacStedu nfp->f_fflag = iep->ie_fflag; 97826f3deacStedu nfp->f_pnumber = iep->ie_fpnumber; 97926f3deacStedu nfp->f_times = iep->ie_ftimes; 98026f3deacStedu 98126f3deacStedu if((nfp->f_fflag & NTFS_FFLAG_DIR) && 98226f3deacStedu (nfp->f_attrtype == NTFS_A_DATA) && 98326f3deacStedu (nfp->f_attrname == NULL)) 98426f3deacStedu f_type = VDIR; 98526f3deacStedu else 98626f3deacStedu f_type = VREG; 98726f3deacStedu 98826f3deacStedu nvp->v_type = f_type; 98926f3deacStedu 99026f3deacStedu if ((nfp->f_attrtype == NTFS_A_DATA) && 99126f3deacStedu (nfp->f_attrname == NULL)) 99226f3deacStedu { 99326f3deacStedu /* Opening default attribute */ 99426f3deacStedu nfp->f_size = iep->ie_fsize; 99526f3deacStedu nfp->f_allocated = iep->ie_fallocated; 99626f3deacStedu nfp->f_flag |= FN_PRELOADED; 99726f3deacStedu } else { 99826f3deacStedu error = ntfs_filesize(ntmp, nfp, 99926f3deacStedu &nfp->f_size, &nfp->f_allocated); 100026f3deacStedu if (error) { 100126f3deacStedu vput(nvp); 100226f3deacStedu goto fail; 100326f3deacStedu } 100426f3deacStedu } 100526f3deacStedu 100626f3deacStedu nfp->f_flag &= ~FN_VALID; 100726f3deacStedu *vpp = nvp; 100826f3deacStedu goto fail; 100926f3deacStedu } 101026f3deacStedu 101126f3deacStedu /* Dive if possible */ 101226f3deacStedu if (iep->ie_flag & NTFS_IEFLAG_SUBNODE) { 1013a1ea65c6Sjsing DPRINTF("ntfs_ntlookupfile: diving\n"); 101426f3deacStedu 101526f3deacStedu cn = *(cn_t *) (rdbuf + aoff + 101626f3deacStedu iep->reclen - sizeof(cn_t)); 101726f3deacStedu rdsize = blsize; 101826f3deacStedu 101926f3deacStedu error = ntfs_readattr(ntmp, ip, NTFS_A_INDX, "$I30", 102026f3deacStedu ntfs_cntob(cn), rdsize, rdbuf, NULL); 102126f3deacStedu if (error) 102226f3deacStedu goto fail; 102326f3deacStedu 102426f3deacStedu error = ntfs_procfixups(ntmp, NTFS_INDXMAGIC, 102526f3deacStedu rdbuf, rdsize); 102626f3deacStedu if (error) 102726f3deacStedu goto fail; 102826f3deacStedu 102926f3deacStedu aoff = (((struct attr_indexalloc *) rdbuf)->ia_hdrsize + 103026f3deacStedu 0x18); 103126f3deacStedu } else if (fullscan && lookup_ctx) { 103226f3deacStedu cn = lookup_ctx->cn; 103326f3deacStedu aoff = lookup_ctx->aoff; 103426f3deacStedu rdsize = lookup_ctx->rdsize; 103526f3deacStedu 103626f3deacStedu error = ntfs_readattr(ntmp, ip, 103726f3deacStedu (cn == 0) ? NTFS_A_INDXROOT : NTFS_A_INDX, 103826f3deacStedu "$I30", ntfs_cntob(cn), rdsize, rdbuf, NULL); 103926f3deacStedu if (error) 104026f3deacStedu goto fail; 104126f3deacStedu 104226f3deacStedu if (cn != 0) { 104326f3deacStedu error = ntfs_procfixups(ntmp, NTFS_INDXMAGIC, 104426f3deacStedu rdbuf, rdsize); 104526f3deacStedu if (error) 104626f3deacStedu goto fail; 104726f3deacStedu } 104826f3deacStedu 104926f3deacStedu tctx = lookup_ctx; 105026f3deacStedu lookup_ctx = lookup_ctx->prev; 1051e8821f89Shshoexer free(tctx, M_TEMP); 105226f3deacStedu } else { 1053a1ea65c6Sjsing DPRINTF("ntfs_ntlookupfile: nowhere to dive :-(\n"); 105426f3deacStedu error = ENOENT; 105526f3deacStedu break; 105626f3deacStedu } 105726f3deacStedu } while (1); 105826f3deacStedu 105926f3deacStedu /* perform full scan if no entry was found */ 106026f3deacStedu if (!fullscan && error == ENOENT) { 106126f3deacStedu fullscan = 1; 106226f3deacStedu cn = 0; /* need zero, used by lookup_ctx */ 106326f3deacStedu 1064a1ea65c6Sjsing DDPRINTF("ntfs_ntlookupfile: fullscan performed for: %.*s\n", 1065*f2997212Sjsing (unsigned int)fnamelen, fname); 106626f3deacStedu goto loop; 106726f3deacStedu } 106826f3deacStedu 1069a1ea65c6Sjsing DPRINTF("finish\n"); 107026f3deacStedu 107126f3deacStedu fail: 10726f6d0059Sjsing if (vap) 10736f6d0059Sjsing ntfs_ntvattrrele(vap); 10746f6d0059Sjsing if (rdbuf) 10756f6d0059Sjsing free(rdbuf, M_TEMP); 107626f3deacStedu if (attrname) 1077e8821f89Shshoexer free(attrname, M_TEMP); 107826f3deacStedu if (lookup_ctx) { 107926f3deacStedu while(lookup_ctx) { 108026f3deacStedu tctx = lookup_ctx; 108126f3deacStedu lookup_ctx = lookup_ctx->prev; 1082e8821f89Shshoexer free(tctx, M_TEMP); 108326f3deacStedu } 108426f3deacStedu } 108526f3deacStedu ntfs_ntput(ip, p); 108626f3deacStedu return (error); 108726f3deacStedu } 108826f3deacStedu 108926f3deacStedu /* 109026f3deacStedu * Check if name type is permitted to show. 109126f3deacStedu */ 109226f3deacStedu int 10931cc0505dSjsing ntfs_isnamepermitted(struct ntfsmount *ntmp, struct attr_indexentry *iep) 109426f3deacStedu { 109526f3deacStedu if (ntmp->ntm_flag & NTFS_MFLAG_ALLNAMES) 109626f3deacStedu return 1; 109726f3deacStedu 109826f3deacStedu switch (iep->ie_fnametype) { 109926f3deacStedu case 2: 1100a1ea65c6Sjsing DDPRINTF("ntfs_isnamepermitted: skipped DOS name\n"); 110126f3deacStedu return 0; 110226f3deacStedu case 0: case 1: case 3: 110326f3deacStedu return 1; 110426f3deacStedu default: 110526f3deacStedu printf("ntfs_isnamepermitted: " \ 110626f3deacStedu "WARNING! Unknown file name type: %d\n", 110726f3deacStedu iep->ie_fnametype); 110826f3deacStedu break; 110926f3deacStedu } 111026f3deacStedu return 0; 111126f3deacStedu } 111226f3deacStedu 111326f3deacStedu /* 111426f3deacStedu * Read ntfs dir like stream of attr_indexentry, not like btree of them. 111526f3deacStedu * This is done by scanning $BITMAP:$I30 for busy clusters and reading them. 111626f3deacStedu * Of course $INDEX_ROOT:$I30 is read before. Last read values are stored in 111726f3deacStedu * fnode, so we can skip toward record number num almost immediately. 111826f3deacStedu * Anyway this is rather slow routine. The problem is that we don't know 111926f3deacStedu * how many records are there in $INDEX_ALLOCATION:$I30 block. 112026f3deacStedu */ 112126f3deacStedu int 11221cc0505dSjsing ntfs_ntreaddir(struct ntfsmount *ntmp, struct fnode *fp, u_int32_t num, 11231cc0505dSjsing struct attr_indexentry **riepp, struct proc *p) 112426f3deacStedu { 112526f3deacStedu struct ntnode *ip = FTONT(fp); 112626f3deacStedu struct ntvattr *vap = NULL; /* IndexRoot attribute */ 112726f3deacStedu struct ntvattr *bmvap = NULL; /* BitMap attribute */ 112826f3deacStedu struct ntvattr *iavap = NULL; /* IndexAllocation attribute */ 112926f3deacStedu caddr_t rdbuf; /* Buffer to read directory's blocks */ 11306978a3abSbrad u_int8_t *bmp = NULL; /* Bitmap */ 113126f3deacStedu u_int32_t blsize; /* Index allocation size (2048) */ 113226f3deacStedu u_int32_t rdsize; /* Length of data to read */ 113326f3deacStedu u_int32_t attrnum; /* Current attribute type */ 113426f3deacStedu u_int32_t cpbl = 1; /* Clusters per directory block */ 113526f3deacStedu u_int32_t blnum; 113626f3deacStedu struct attr_indexentry *iep; 113726f3deacStedu int error = ENOENT; 113826f3deacStedu u_int32_t aoff, cnum; 113926f3deacStedu 1140*f2997212Sjsing DPRINTF("ntfs_ntreaddir: read ino: %u, num: %u\n", ip->i_number, num); 114126f3deacStedu error = ntfs_ntget(ip, p); 114226f3deacStedu if (error) 114326f3deacStedu return (error); 114426f3deacStedu 114526f3deacStedu error = ntfs_ntvattrget(ntmp, ip, NTFS_A_INDXROOT, "$I30", 0, &vap); 11466f6d0059Sjsing if (error) { 11476f6d0059Sjsing error = ENOTDIR; 11486f6d0059Sjsing goto fail; 11496f6d0059Sjsing } 115026f3deacStedu 115126f3deacStedu if (fp->f_dirblbuf == NULL) { 115226f3deacStedu fp->f_dirblsz = vap->va_a_iroot->ir_size; 1153c6c302e5Stedu fp->f_dirblbuf = malloc(MAX(vap->va_datalen,fp->f_dirblsz), 1154c6c302e5Stedu M_NTFSDIR, M_WAITOK); 115526f3deacStedu } 115626f3deacStedu 115726f3deacStedu blsize = fp->f_dirblsz; 115826f3deacStedu rdbuf = fp->f_dirblbuf; 115926f3deacStedu 1160*f2997212Sjsing DPRINTF("ntfs_ntreaddir: rdbuf: %p, blsize: %u\n", rdbuf, blsize); 116126f3deacStedu 116226f3deacStedu if (vap->va_a_iroot->ir_flag & NTFS_IRFLAG_INDXALLOC) { 116326f3deacStedu error = ntfs_ntvattrget(ntmp, ip, NTFS_A_INDXBITMAP, "$I30", 116426f3deacStedu 0, &bmvap); 116526f3deacStedu if (error) { 116626f3deacStedu error = ENOTDIR; 116726f3deacStedu goto fail; 116826f3deacStedu } 1169c6c302e5Stedu bmp = malloc(bmvap->va_datalen, M_TEMP, M_WAITOK); 117026f3deacStedu error = ntfs_readattr(ntmp, ip, NTFS_A_INDXBITMAP, "$I30", 0, 117126f3deacStedu bmvap->va_datalen, bmp, NULL); 117226f3deacStedu if (error) 117326f3deacStedu goto fail; 117426f3deacStedu 117526f3deacStedu error = ntfs_ntvattrget(ntmp, ip, NTFS_A_INDX, "$I30", 117626f3deacStedu 0, &iavap); 117726f3deacStedu if (error) { 117826f3deacStedu error = ENOTDIR; 117926f3deacStedu goto fail; 118026f3deacStedu } 118126f3deacStedu cpbl = ntfs_btocn(blsize + ntfs_cntob(1) - 1); 1182*f2997212Sjsing DPRINTF("ntfs_ntreaddir: indexalloc: %u, cpbl: %u\n", 1183a1ea65c6Sjsing iavap->va_datalen, cpbl); 118426f3deacStedu } else { 1185a1ea65c6Sjsing DPRINTF("ntfs_ntreadidir: w/o BitMap and IndexAllocation\n"); 118626f3deacStedu iavap = bmvap = NULL; 118726f3deacStedu bmp = NULL; 118826f3deacStedu } 118926f3deacStedu 119026f3deacStedu /* Try use previous values */ 119126f3deacStedu if ((fp->f_lastdnum < num) && (fp->f_lastdnum != 0)) { 119226f3deacStedu attrnum = fp->f_lastdattr; 119326f3deacStedu aoff = fp->f_lastdoff; 119426f3deacStedu blnum = fp->f_lastdblnum; 119526f3deacStedu cnum = fp->f_lastdnum; 119626f3deacStedu } else { 119726f3deacStedu attrnum = NTFS_A_INDXROOT; 119826f3deacStedu aoff = sizeof(struct attr_indexroot); 119926f3deacStedu blnum = 0; 120026f3deacStedu cnum = 0; 120126f3deacStedu } 120226f3deacStedu 120326f3deacStedu do { 1204*f2997212Sjsing DPRINTF("ntfs_ntreaddir: scan: 0x%x, %u, %u, %u, %u\n", 1205*f2997212Sjsing attrnum, blnum, cnum, num, aoff); 120626f3deacStedu rdsize = (attrnum == NTFS_A_INDXROOT) ? vap->va_datalen : blsize; 120726f3deacStedu error = ntfs_readattr(ntmp, ip, attrnum, "$I30", 120826f3deacStedu ntfs_cntob(blnum * cpbl), rdsize, rdbuf, NULL); 120926f3deacStedu if (error) 121026f3deacStedu goto fail; 121126f3deacStedu 121226f3deacStedu if (attrnum == NTFS_A_INDX) { 121326f3deacStedu error = ntfs_procfixups(ntmp, NTFS_INDXMAGIC, 121426f3deacStedu rdbuf, rdsize); 121526f3deacStedu if (error) 121626f3deacStedu goto fail; 121726f3deacStedu } 121826f3deacStedu if (aoff == 0) 121926f3deacStedu aoff = (attrnum == NTFS_A_INDX) ? 122026f3deacStedu (0x18 + ((struct attr_indexalloc *) rdbuf)->ia_hdrsize) : 122126f3deacStedu sizeof(struct attr_indexroot); 122226f3deacStedu 122326f3deacStedu iep = (struct attr_indexentry *) (rdbuf + aoff); 122426f3deacStedu for (; !(iep->ie_flag & NTFS_IEFLAG_LAST) && (rdsize > aoff); 122526f3deacStedu aoff += iep->reclen, 122626f3deacStedu iep = (struct attr_indexentry *) (rdbuf + aoff)) 122726f3deacStedu { 122826f3deacStedu if (!ntfs_isnamepermitted(ntmp, iep)) continue; 122926f3deacStedu 123026f3deacStedu if (cnum >= num) { 123126f3deacStedu fp->f_lastdnum = cnum; 123226f3deacStedu fp->f_lastdoff = aoff; 123326f3deacStedu fp->f_lastdblnum = blnum; 123426f3deacStedu fp->f_lastdattr = attrnum; 123526f3deacStedu 123626f3deacStedu *riepp = iep; 123726f3deacStedu 123826f3deacStedu error = 0; 123926f3deacStedu goto fail; 124026f3deacStedu } 124126f3deacStedu cnum++; 124226f3deacStedu } 124326f3deacStedu 124426f3deacStedu if (iavap) { 124526f3deacStedu if (attrnum == NTFS_A_INDXROOT) 124626f3deacStedu blnum = 0; 124726f3deacStedu else 124826f3deacStedu blnum++; 124926f3deacStedu 125026f3deacStedu while (ntfs_cntob(blnum * cpbl) < iavap->va_datalen) { 12516978a3abSbrad if (bmp[blnum >> 3] & (1 << (blnum & 7))) 125226f3deacStedu break; 125326f3deacStedu blnum++; 125426f3deacStedu } 125526f3deacStedu 125626f3deacStedu attrnum = NTFS_A_INDX; 125726f3deacStedu aoff = 0; 125826f3deacStedu if (ntfs_cntob(blnum * cpbl) >= iavap->va_datalen) 125926f3deacStedu break; 1260*f2997212Sjsing DPRINTF("ntfs_ntreaddir: blnum: %u\n", blnum); 126126f3deacStedu } 126226f3deacStedu } while (iavap); 126326f3deacStedu 126426f3deacStedu *riepp = NULL; 126526f3deacStedu fp->f_lastdnum = 0; 126626f3deacStedu 126726f3deacStedu fail: 126826f3deacStedu if (vap) 126926f3deacStedu ntfs_ntvattrrele(vap); 127026f3deacStedu if (bmvap) 127126f3deacStedu ntfs_ntvattrrele(bmvap); 127226f3deacStedu if (iavap) 127326f3deacStedu ntfs_ntvattrrele(iavap); 127426f3deacStedu if (bmp) 1275e8821f89Shshoexer free(bmp, M_TEMP); 127626f3deacStedu ntfs_ntput(ip, p); 12771ad3841aSjasper 127826f3deacStedu return (error); 127926f3deacStedu } 128026f3deacStedu 128126f3deacStedu /* 128226f3deacStedu * Convert NTFS times that are in 100 ns units and begins from 128326f3deacStedu * 1601 Jan 1 into unix times. 128426f3deacStedu */ 128526f3deacStedu struct timespec 12861cc0505dSjsing ntfs_nttimetounix(u_int64_t nt) 128726f3deacStedu { 128826f3deacStedu struct timespec t; 128926f3deacStedu 129026f3deacStedu /* WindowNT times are in 100 ns and from 1601 Jan 1 */ 129126f3deacStedu t.tv_nsec = (nt % (1000 * 1000 * 10)) * 100; 129226f3deacStedu t.tv_sec = nt / (1000 * 1000 * 10) - 129326f3deacStedu 369LL * 365LL * 24LL * 60LL * 60LL - 129426f3deacStedu 89LL * 1LL * 24LL * 60LL * 60LL; 129526f3deacStedu return (t); 129626f3deacStedu } 129726f3deacStedu 129826f3deacStedu /* 129926f3deacStedu * Get file sizes from corresponding attribute. 130026f3deacStedu * 130126f3deacStedu * ntnode under fnode should be locked. 130226f3deacStedu */ 130326f3deacStedu int 13041cc0505dSjsing ntfs_filesize(struct ntfsmount *ntmp, struct fnode *fp, u_int64_t *size, 130526f3deacStedu u_int64_t *bytes) 130626f3deacStedu { 130726f3deacStedu struct ntvattr *vap; 130826f3deacStedu struct ntnode *ip = FTONT(fp); 130926f3deacStedu u_int64_t sz, bn; 131026f3deacStedu int error; 131126f3deacStedu 1312*f2997212Sjsing DPRINTF("ntfs_filesize: ino: %u\n", ip->i_number); 131326f3deacStedu 131426f3deacStedu error = ntfs_ntvattrget(ntmp, ip, 131526f3deacStedu fp->f_attrtype, fp->f_attrname, 0, &vap); 131626f3deacStedu if (error) 131726f3deacStedu return (error); 131826f3deacStedu 131926f3deacStedu bn = vap->va_allocated; 132026f3deacStedu sz = vap->va_datalen; 132126f3deacStedu 1322*f2997212Sjsing DPRINTF("ntfs_filesize: %llu bytes (%llu bytes allocated)\n", sz, bn); 132326f3deacStedu 132426f3deacStedu if (size) 132526f3deacStedu *size = sz; 132626f3deacStedu if (bytes) 132726f3deacStedu *bytes = bn; 132826f3deacStedu 132926f3deacStedu ntfs_ntvattrrele(vap); 133026f3deacStedu 133126f3deacStedu return (0); 133226f3deacStedu } 133326f3deacStedu 133426f3deacStedu /* 1335835c1779Sbrad * This is one of the write routines. 133626f3deacStedu */ 133726f3deacStedu int 13381cc0505dSjsing ntfs_writeattr_plain(struct ntfsmount *ntmp, struct ntnode *ip, 13391cc0505dSjsing u_int32_t attrnum, char *attrname, off_t roff, size_t rsize, void *rdata, 13401cc0505dSjsing size_t *initp, struct uio *uio) 134126f3deacStedu { 134226f3deacStedu size_t init; 134326f3deacStedu int error = 0; 134426f3deacStedu off_t off = roff, left = rsize, towrite; 134526f3deacStedu caddr_t data = rdata; 134626f3deacStedu struct ntvattr *vap; 134726f3deacStedu *initp = 0; 134826f3deacStedu 134926f3deacStedu while (left) { 135026f3deacStedu error = ntfs_ntvattrget(ntmp, ip, attrnum, attrname, 135126f3deacStedu ntfs_btocn(off), &vap); 135226f3deacStedu if (error) 135326f3deacStedu return (error); 1354835c1779Sbrad towrite = MIN(left, ntfs_cntob(vap->va_vcnend + 1) - off); 1355*f2997212Sjsing DDPRINTF("ntfs_writeattr_plain: o: %lld, s: %lld " 1356*f2997212Sjsing "(%llu - %llu)\n", off, towrite, 1357*f2997212Sjsing vap->va_vcnstart, vap->va_vcnend); 135826f3deacStedu error = ntfs_writentvattr_plain(ntmp, ip, vap, 135926f3deacStedu off - ntfs_cntob(vap->va_vcnstart), 136026f3deacStedu towrite, data, &init, uio); 136126f3deacStedu if (error) { 1362a1ea65c6Sjsing DPRINTF("ntfs_writeattr_plain: ntfs_writentvattr_plain " 1363a1ea65c6Sjsing "failed: o: %d, s: %d\n", 1364a1ea65c6Sjsing (u_int32_t)off, (u_int32_t)towrite); 1365a1ea65c6Sjsing DPRINTF("ntfs_writeattr_plain: attrib: %d - %d\n", 136626f3deacStedu (u_int32_t)vap->va_vcnstart, 1367a1ea65c6Sjsing (u_int32_t)vap->va_vcnend); 136826f3deacStedu ntfs_ntvattrrele(vap); 136926f3deacStedu break; 137026f3deacStedu } 137126f3deacStedu ntfs_ntvattrrele(vap); 137226f3deacStedu left -= towrite; 137326f3deacStedu off += towrite; 137426f3deacStedu data = data + towrite; 137526f3deacStedu *initp += init; 137626f3deacStedu } 137726f3deacStedu 137826f3deacStedu return (error); 137926f3deacStedu } 138026f3deacStedu 138126f3deacStedu /* 1382835c1779Sbrad * This is one of the write routines. 138326f3deacStedu * 138426f3deacStedu * ntnode should be locked. 138526f3deacStedu */ 138626f3deacStedu int 13871cc0505dSjsing ntfs_writentvattr_plain(struct ntfsmount *ntmp, struct ntnode *ip, 13881cc0505dSjsing struct ntvattr *vap, off_t roff, size_t rsize, void *rdata, size_t *initp, 138926f3deacStedu struct uio *uio) 139026f3deacStedu { 139126f3deacStedu int error = 0; 139226f3deacStedu int off; 139326f3deacStedu int cnt; 139426f3deacStedu cn_t ccn, ccl, cn, left, cl; 139526f3deacStedu caddr_t data = rdata; 139626f3deacStedu struct buf *bp; 139726f3deacStedu size_t tocopy; 139826f3deacStedu 139926f3deacStedu *initp = 0; 140026f3deacStedu 140126f3deacStedu if ((vap->va_flag & NTFS_AF_INRUN) == 0) { 1402a1ea65c6Sjsing DPRINTF("ntfs_writevattr_plain: CAN'T WRITE RES. ATTRIBUTE\n"); 140326f3deacStedu return ENOTTY; 140426f3deacStedu } 140526f3deacStedu 1406a1ea65c6Sjsing DDPRINTF("ntfs_writentvattr_plain: data in run: %lu chains\n", 1407a1ea65c6Sjsing vap->va_vruncnt); 140826f3deacStedu 140926f3deacStedu off = roff; 141026f3deacStedu left = rsize; 141126f3deacStedu ccl = 0; 141226f3deacStedu ccn = 0; 141326f3deacStedu cnt = 0; 141426f3deacStedu for (; left && (cnt < vap->va_vruncnt); cnt++) { 141526f3deacStedu ccn = vap->va_vruncn[cnt]; 141626f3deacStedu ccl = vap->va_vruncl[cnt]; 141726f3deacStedu 1418*f2997212Sjsing DDPRINTF("ntfs_writentvattr_plain: left %llu, cn: 0x%llx, " 1419*f2997212Sjsing "cl: %llu, off: %lld\n", left, ccn, ccl, off); 142026f3deacStedu 142126f3deacStedu if (ntfs_cntob(ccl) < off) { 142226f3deacStedu off -= ntfs_cntob(ccl); 142326f3deacStedu cnt++; 142426f3deacStedu continue; 142526f3deacStedu } 142626f3deacStedu if (!ccn && ip->i_number != NTFS_BOOTINO) 142726f3deacStedu continue; /* XXX */ 142826f3deacStedu 142926f3deacStedu ccl -= ntfs_btocn(off); 143026f3deacStedu cn = ccn + ntfs_btocn(off); 143126f3deacStedu off = ntfs_btocnoff(off); 143226f3deacStedu 143326f3deacStedu while (left && ccl) { 1434835c1779Sbrad /* 1435835c1779Sbrad * Always read and write single clusters at a time - 1436835c1779Sbrad * we need to avoid requesting differently-sized 1437835c1779Sbrad * blocks at the same disk offsets to avoid 1438835c1779Sbrad * confusing the buffer cache. 1439835c1779Sbrad */ 1440835c1779Sbrad tocopy = MIN(left, ntfs_cntob(1) - off); 144126f3deacStedu cl = ntfs_btocl(tocopy + off); 1442835c1779Sbrad KASSERT(cl == 1 && tocopy <= ntfs_cntob(1)); 1443*f2997212Sjsing DDPRINTF("ntfs_writentvattr_plain: write: cn: 0x%llx " 1444*f2997212Sjsing "cl: %llu, off: %lld len: %llu, left: %llu\n", 1445*f2997212Sjsing cn, cl, off, tocopy, left); 144626f3deacStedu if ((off == 0) && (tocopy == ntfs_cntob(cl))) 144726f3deacStedu { 144826f3deacStedu bp = getblk(ntmp->ntm_devvp, ntfs_cntobn(cn), 144926f3deacStedu ntfs_cntob(cl), 0, 0); 145026f3deacStedu clrbuf(bp); 145126f3deacStedu } else { 145226f3deacStedu error = bread(ntmp->ntm_devvp, ntfs_cntobn(cn), 145393f62a9eStedu ntfs_cntob(cl), &bp); 145426f3deacStedu if (error) { 145526f3deacStedu brelse(bp); 145626f3deacStedu return (error); 145726f3deacStedu } 145826f3deacStedu } 1459fca26c8fSmiod if (uio) { 1460fca26c8fSmiod error = uiomove(bp->b_data + off, tocopy, uio); 1461fca26c8fSmiod if (error != 0) 1462fca26c8fSmiod break; 1463fca26c8fSmiod } else 146426f3deacStedu memcpy(bp->b_data + off, data, tocopy); 146526f3deacStedu bawrite(bp); 146626f3deacStedu data = data + tocopy; 146726f3deacStedu *initp += tocopy; 146826f3deacStedu off = 0; 146926f3deacStedu left -= tocopy; 147026f3deacStedu cn += cl; 147126f3deacStedu ccl -= cl; 147226f3deacStedu } 147326f3deacStedu } 147426f3deacStedu 1475fca26c8fSmiod if (left && error == 0) { 147626f3deacStedu printf("ntfs_writentvattr_plain: POSSIBLE RUN ERROR\n"); 147726f3deacStedu error = EINVAL; 147826f3deacStedu } 147926f3deacStedu 148026f3deacStedu return (error); 148126f3deacStedu } 148226f3deacStedu 148326f3deacStedu /* 1484835c1779Sbrad * This is one of the read routines. 148526f3deacStedu * 148626f3deacStedu * ntnode should be locked. 148726f3deacStedu */ 148826f3deacStedu int 14891cc0505dSjsing ntfs_readntvattr_plain(struct ntfsmount *ntmp, struct ntnode *ip, 14901cc0505dSjsing struct ntvattr *vap, off_t roff, size_t rsize, void *rdata, size_t *initp, 149126f3deacStedu struct uio *uio) 149226f3deacStedu { 149326f3deacStedu int error = 0; 149426f3deacStedu int off; 149526f3deacStedu 149626f3deacStedu *initp = 0; 149726f3deacStedu if (vap->va_flag & NTFS_AF_INRUN) { 149826f3deacStedu int cnt; 149926f3deacStedu cn_t ccn, ccl, cn, left, cl; 150026f3deacStedu caddr_t data = rdata; 150126f3deacStedu struct buf *bp; 150226f3deacStedu size_t tocopy; 150326f3deacStedu 1504a1ea65c6Sjsing DDPRINTF("ntfs_readntvattr_plain: data in run: %lu chains\n", 1505a1ea65c6Sjsing vap->va_vruncnt); 150626f3deacStedu 150726f3deacStedu off = roff; 150826f3deacStedu left = rsize; 150926f3deacStedu ccl = 0; 151026f3deacStedu ccn = 0; 151126f3deacStedu cnt = 0; 151226f3deacStedu while (left && (cnt < vap->va_vruncnt)) { 151326f3deacStedu ccn = vap->va_vruncn[cnt]; 151426f3deacStedu ccl = vap->va_vruncl[cnt]; 151526f3deacStedu 1516*f2997212Sjsing DDPRINTF("ntfs_readntvattr_plain: left %llu, " 1517*f2997212Sjsing "cn: 0x%llx, cl: %llu, off: %lld\n", 1518*f2997212Sjsing left, ccn, ccl, off); 151926f3deacStedu 152026f3deacStedu if (ntfs_cntob(ccl) < off) { 152126f3deacStedu off -= ntfs_cntob(ccl); 152226f3deacStedu cnt++; 152326f3deacStedu continue; 152426f3deacStedu } 152526f3deacStedu if (ccn || ip->i_number == NTFS_BOOTINO) { 152626f3deacStedu ccl -= ntfs_btocn(off); 152726f3deacStedu cn = ccn + ntfs_btocn(off); 152826f3deacStedu off = ntfs_btocnoff(off); 152926f3deacStedu 153026f3deacStedu while (left && ccl) { 153126f3deacStedu /* 1532835c1779Sbrad * Always read single clusters at a 1533835c1779Sbrad * time - we need to avoid reading 1534835c1779Sbrad * differently-sized blocks at the 1535835c1779Sbrad * same disk offsets to avoid 1536835c1779Sbrad * confusing the buffer cache. 153726f3deacStedu */ 1538835c1779Sbrad tocopy = MIN(left, 1539835c1779Sbrad ntfs_cntob(1) - off); 1540835c1779Sbrad cl = ntfs_btocl(tocopy + off); 1541835c1779Sbrad KASSERT(cl == 1 && 1542835c1779Sbrad tocopy <= ntfs_cntob(1)); 154326f3deacStedu 1544a1ea65c6Sjsing DDPRINTF("ntfs_readntvattr_plain: " 1545*f2997212Sjsing "read: cn: 0x%llx cl: %llu, " 1546*f2997212Sjsing "off: %lld, len: %llu, " 1547*f2997212Sjsing "left: %llu\n", 1548*f2997212Sjsing cn, cl, off, tocopy, left); 154926f3deacStedu error = bread(ntmp->ntm_devvp, 155026f3deacStedu ntfs_cntobn(cn), 155126f3deacStedu ntfs_cntob(cl), 155293f62a9eStedu &bp); 155326f3deacStedu if (error) { 155426f3deacStedu brelse(bp); 155526f3deacStedu return (error); 155626f3deacStedu } 155726f3deacStedu if (uio) { 1558fca26c8fSmiod error = uiomove(bp->b_data + off, 155926f3deacStedu tocopy, uio); 1560fca26c8fSmiod if (error != 0) 1561fca26c8fSmiod break; 156226f3deacStedu } else { 156326f3deacStedu memcpy(data, bp->b_data + off, 156426f3deacStedu tocopy); 156526f3deacStedu } 156626f3deacStedu brelse(bp); 156726f3deacStedu data = data + tocopy; 156826f3deacStedu *initp += tocopy; 156926f3deacStedu off = 0; 157026f3deacStedu left -= tocopy; 157126f3deacStedu cn += cl; 157226f3deacStedu ccl -= cl; 157326f3deacStedu } 157426f3deacStedu } else { 1575835c1779Sbrad tocopy = MIN(left, ntfs_cntob(ccl) - off); 1576a1ea65c6Sjsing DDPRINTF("ntfs_readntvattr_plain: hole: " 1577*f2997212Sjsing "ccn: 0x%llx ccl: %llu, off: %lld, " 1578*f2997212Sjsing "len: %llu, left: %llu\n", 1579*f2997212Sjsing ccn, ccl, off, tocopy, left); 158026f3deacStedu left -= tocopy; 158126f3deacStedu off = 0; 158226f3deacStedu if (uio) { 158326f3deacStedu size_t remains = tocopy; 1584fca26c8fSmiod for(; remains; remains--) { 1585fca26c8fSmiod error = uiomove("", 1, uio); 1586fca26c8fSmiod if (error != 0) 1587fca26c8fSmiod break; 1588fca26c8fSmiod } 158926f3deacStedu } else 159026f3deacStedu bzero(data, tocopy); 159126f3deacStedu data = data + tocopy; 159226f3deacStedu } 159326f3deacStedu cnt++; 1594fca26c8fSmiod if (error != 0) 1595fca26c8fSmiod break; 159626f3deacStedu } 1597fca26c8fSmiod if (left && error == 0) { 159826f3deacStedu printf("ntfs_readntvattr_plain: POSSIBLE RUN ERROR\n"); 159926f3deacStedu error = E2BIG; 160026f3deacStedu } 160126f3deacStedu } else { 1602a1ea65c6Sjsing DDPRINTF("ntfs_readnvattr_plain: data is in mft record\n"); 160326f3deacStedu if (uio) 1604fca26c8fSmiod error = uiomove(vap->va_datap + roff, rsize, uio); 160526f3deacStedu else 160626f3deacStedu memcpy(rdata, vap->va_datap + roff, rsize); 160726f3deacStedu *initp += rsize; 160826f3deacStedu } 160926f3deacStedu 161026f3deacStedu return (error); 161126f3deacStedu } 161226f3deacStedu 161326f3deacStedu /* 161426f3deacStedu * This is one of read routines. 161526f3deacStedu */ 161626f3deacStedu int 16171cc0505dSjsing ntfs_readattr_plain(struct ntfsmount *ntmp, struct ntnode *ip, 16181cc0505dSjsing u_int32_t attrnum, char *attrname, off_t roff, size_t rsize, void *rdata, 16191cc0505dSjsing size_t *initp, struct uio *uio) 162026f3deacStedu { 162126f3deacStedu size_t init; 162226f3deacStedu int error = 0; 162326f3deacStedu off_t off = roff, left = rsize, toread; 162426f3deacStedu caddr_t data = rdata; 162526f3deacStedu struct ntvattr *vap; 162626f3deacStedu *initp = 0; 162726f3deacStedu 162826f3deacStedu while (left) { 162926f3deacStedu error = ntfs_ntvattrget(ntmp, ip, attrnum, attrname, 163026f3deacStedu ntfs_btocn(off), &vap); 163126f3deacStedu if (error) 163226f3deacStedu return (error); 1633835c1779Sbrad toread = MIN(left, ntfs_cntob(vap->va_vcnend + 1) - off); 1634*f2997212Sjsing DDPRINTF("ntfs_readattr_plain: o: %lld, s: %lld " 1635*f2997212Sjsing "(%llu - %llu)\n", off, toread, 1636*f2997212Sjsing vap->va_vcnstart, vap->va_vcnend); 163726f3deacStedu error = ntfs_readntvattr_plain(ntmp, ip, vap, 163826f3deacStedu off - ntfs_cntob(vap->va_vcnstart), 163926f3deacStedu toread, data, &init, uio); 164026f3deacStedu if (error) { 164126f3deacStedu printf("ntfs_readattr_plain: " \ 164226f3deacStedu "ntfs_readntvattr_plain failed: o: %d, s: %d\n", 164326f3deacStedu (u_int32_t) off, (u_int32_t) toread); 164426f3deacStedu printf("ntfs_readattr_plain: attrib: %d - %d\n", 164526f3deacStedu (u_int32_t) vap->va_vcnstart, 164626f3deacStedu (u_int32_t) vap->va_vcnend); 164726f3deacStedu ntfs_ntvattrrele(vap); 164826f3deacStedu break; 164926f3deacStedu } 165026f3deacStedu ntfs_ntvattrrele(vap); 165126f3deacStedu left -= toread; 165226f3deacStedu off += toread; 165326f3deacStedu data = data + toread; 165426f3deacStedu *initp += init; 165526f3deacStedu } 165626f3deacStedu 165726f3deacStedu return (error); 165826f3deacStedu } 165926f3deacStedu 166026f3deacStedu /* 166126f3deacStedu * This is one of read routines. 166226f3deacStedu */ 166326f3deacStedu int 16641cc0505dSjsing ntfs_readattr(struct ntfsmount *ntmp, struct ntnode *ip, u_int32_t attrnum, 16651cc0505dSjsing char *attrname, off_t roff, size_t rsize, void *rdata, struct uio *uio) 166626f3deacStedu { 166726f3deacStedu int error = 0; 166826f3deacStedu struct ntvattr *vap; 166926f3deacStedu size_t init; 167026f3deacStedu 1671*f2997212Sjsing DDPRINTF("ntfs_readattr: reading %u: 0x%x, from %lld size %zu bytes\n", 1672*f2997212Sjsing ip->i_number, attrnum, roff, rsize); 167326f3deacStedu 167426f3deacStedu error = ntfs_ntvattrget(ntmp, ip, attrnum, attrname, 0, &vap); 167526f3deacStedu if (error) 167626f3deacStedu return (error); 167726f3deacStedu 167826f3deacStedu if ((roff > vap->va_datalen) || 167926f3deacStedu (roff + rsize > vap->va_datalen)) { 1680*f2997212Sjsing printf("ntfs_readattr: offset too big: %lld (%lld) > %u\n", 1681*f2997212Sjsing roff, roff + rsize, vap->va_datalen); 168226f3deacStedu ntfs_ntvattrrele(vap); 168326f3deacStedu return (E2BIG); 168426f3deacStedu } 168526f3deacStedu if (vap->va_compression && vap->va_compressalg) { 168626f3deacStedu u_int8_t *cup; 168726f3deacStedu u_int8_t *uup; 168826f3deacStedu off_t off = roff, left = rsize, tocopy; 168926f3deacStedu caddr_t data = rdata; 169026f3deacStedu cn_t cn; 169126f3deacStedu 1692*f2997212Sjsing DDPRINTF("ntfs_ntreadattr: compression: %u\n", 1693a1ea65c6Sjsing vap->va_compressalg); 169426f3deacStedu 1695e8821f89Shshoexer cup = malloc(ntfs_cntob(NTFS_COMPUNIT_CL), M_NTFSDECOMP, 1696e8821f89Shshoexer M_WAITOK); 1697e8821f89Shshoexer uup = malloc(ntfs_cntob(NTFS_COMPUNIT_CL), M_NTFSDECOMP, 1698e8821f89Shshoexer M_WAITOK); 169926f3deacStedu 170026f3deacStedu cn = (ntfs_btocn(roff)) & (~(NTFS_COMPUNIT_CL - 1)); 170126f3deacStedu off = roff - ntfs_cntob(cn); 170226f3deacStedu 170326f3deacStedu while (left) { 170426f3deacStedu error = ntfs_readattr_plain(ntmp, ip, attrnum, 170526f3deacStedu attrname, ntfs_cntob(cn), 170626f3deacStedu ntfs_cntob(NTFS_COMPUNIT_CL), 170726f3deacStedu cup, &init, NULL); 170826f3deacStedu if (error) 170926f3deacStedu break; 171026f3deacStedu 1711835c1779Sbrad tocopy = MIN(left, ntfs_cntob(NTFS_COMPUNIT_CL) - off); 171226f3deacStedu 171326f3deacStedu if (init == ntfs_cntob(NTFS_COMPUNIT_CL)) { 171426f3deacStedu if (uio) 1715fca26c8fSmiod error = uiomove(cup + off, tocopy, uio); 171626f3deacStedu else 171726f3deacStedu memcpy(data, cup + off, tocopy); 171826f3deacStedu } else if (init == 0) { 171926f3deacStedu if (uio) { 172026f3deacStedu size_t remains = tocopy; 1721fca26c8fSmiod for(; remains; remains--) { 1722fca26c8fSmiod error = uiomove("", 1, uio); 1723fca26c8fSmiod if (error != 0) 1724fca26c8fSmiod break; 1725fca26c8fSmiod } 172626f3deacStedu } 172726f3deacStedu else 172826f3deacStedu bzero(data, tocopy); 172926f3deacStedu } else { 173026f3deacStedu error = ntfs_uncompunit(ntmp, uup, cup); 173126f3deacStedu if (error) 173226f3deacStedu break; 173326f3deacStedu if (uio) 1734fca26c8fSmiod error = uiomove(uup + off, tocopy, uio); 173526f3deacStedu else 173626f3deacStedu memcpy(data, uup + off, tocopy); 173726f3deacStedu } 1738fca26c8fSmiod if (error) 1739fca26c8fSmiod break; 174026f3deacStedu 174126f3deacStedu left -= tocopy; 174226f3deacStedu data = data + tocopy; 174326f3deacStedu off += tocopy - ntfs_cntob(NTFS_COMPUNIT_CL); 174426f3deacStedu cn += NTFS_COMPUNIT_CL; 174526f3deacStedu } 174626f3deacStedu 1747e8821f89Shshoexer free(uup, M_NTFSDECOMP); 1748e8821f89Shshoexer free(cup, M_NTFSDECOMP); 174926f3deacStedu } else 175026f3deacStedu error = ntfs_readattr_plain(ntmp, ip, attrnum, attrname, 175126f3deacStedu roff, rsize, rdata, &init, uio); 175226f3deacStedu ntfs_ntvattrrele(vap); 175326f3deacStedu return (error); 175426f3deacStedu } 175526f3deacStedu 175626f3deacStedu #if UNUSED_CODE 175726f3deacStedu int 17581cc0505dSjsing ntfs_parserun(cn_t *cn, cn_t *cl, u_int8_t *run, u_long len, u_long *off) 175926f3deacStedu { 176026f3deacStedu u_int8_t sz; 176126f3deacStedu int i; 176226f3deacStedu 176326f3deacStedu if (NULL == run) { 176426f3deacStedu printf("ntfs_parsetun: run == NULL\n"); 176526f3deacStedu return (EINVAL); 176626f3deacStedu } 176726f3deacStedu sz = run[(*off)++]; 176826f3deacStedu if (0 == sz) { 176926f3deacStedu printf("ntfs_parserun: trying to go out of run\n"); 177026f3deacStedu return (E2BIG); 177126f3deacStedu } 177226f3deacStedu *cl = 0; 177326f3deacStedu if ((sz & 0xF) > 8 || (*off) + (sz & 0xF) > len) { 177426f3deacStedu printf("ntfs_parserun: " \ 177526f3deacStedu "bad run: length too big: sz: 0x%02x (%ld < %ld + sz)\n", 177626f3deacStedu sz, len, *off); 177726f3deacStedu return (EINVAL); 177826f3deacStedu } 177926f3deacStedu for (i = 0; i < (sz & 0xF); i++) 178026f3deacStedu *cl += (u_int32_t) run[(*off)++] << (i << 3); 178126f3deacStedu 178226f3deacStedu sz >>= 4; 178326f3deacStedu if ((sz & 0xF) > 8 || (*off) + (sz & 0xF) > len) { 178426f3deacStedu printf("ntfs_parserun: " \ 178526f3deacStedu "bad run: length too big: sz: 0x%02x (%ld < %ld + sz)\n", 178626f3deacStedu sz, len, *off); 178726f3deacStedu return (EINVAL); 178826f3deacStedu } 178926f3deacStedu for (i = 0; i < (sz & 0xF); i++) 179026f3deacStedu *cn += (u_int32_t) run[(*off)++] << (i << 3); 179126f3deacStedu 179226f3deacStedu return (0); 179326f3deacStedu } 179426f3deacStedu #endif 179526f3deacStedu 179626f3deacStedu /* 179726f3deacStedu * Process fixup routine on given buffer. 179826f3deacStedu */ 179926f3deacStedu int 18001cc0505dSjsing ntfs_procfixups(struct ntfsmount *ntmp, u_int32_t magic, caddr_t buf, 180126f3deacStedu size_t len) 180226f3deacStedu { 180326f3deacStedu struct fixuphdr *fhp = (struct fixuphdr *) buf; 180426f3deacStedu int i; 180526f3deacStedu u_int16_t fixup; 180626f3deacStedu u_int16_t *fxp; 180726f3deacStedu u_int16_t *cfxp; 180826f3deacStedu 180926f3deacStedu if (fhp->fh_magic != magic) { 181026f3deacStedu printf("ntfs_procfixups: magic doesn't match: %08x != %08x\n", 181126f3deacStedu fhp->fh_magic, magic); 181226f3deacStedu return (EINVAL); 181326f3deacStedu } 181426f3deacStedu if ((fhp->fh_fnum - 1) * ntmp->ntm_bps != len) { 181526f3deacStedu printf("ntfs_procfixups: " \ 181626f3deacStedu "bad fixups number: %d for %ld bytes block\n", 181726f3deacStedu fhp->fh_fnum, (long)len); /* XXX printf kludge */ 181826f3deacStedu return (EINVAL); 181926f3deacStedu } 182026f3deacStedu if (fhp->fh_foff >= ntmp->ntm_spc * ntmp->ntm_mftrecsz * ntmp->ntm_bps) { 182126f3deacStedu printf("ntfs_procfixups: invalid offset: %x", fhp->fh_foff); 182226f3deacStedu return (EINVAL); 182326f3deacStedu } 182426f3deacStedu fxp = (u_int16_t *) (buf + fhp->fh_foff); 182526f3deacStedu cfxp = (u_int16_t *) (buf + ntmp->ntm_bps - 2); 182626f3deacStedu fixup = *fxp++; 182726f3deacStedu for (i = 1; i < fhp->fh_fnum; i++, fxp++) { 182826f3deacStedu if (*cfxp != fixup) { 182926f3deacStedu printf("ntfs_procfixups: fixup %d doesn't match\n", i); 183026f3deacStedu return (EINVAL); 183126f3deacStedu } 183226f3deacStedu *cfxp = *fxp; 1833835c1779Sbrad cfxp = (u_int16_t *)((caddr_t)cfxp + ntmp->ntm_bps); 183426f3deacStedu } 183526f3deacStedu return (0); 183626f3deacStedu } 183726f3deacStedu 183826f3deacStedu #if UNUSED_CODE 183926f3deacStedu int 18401cc0505dSjsing ntfs_runtocn(cn_t *cn, struct ntfsmount *ntmp, u_int8_t *run, u_long len, 184126f3deacStedu cn_t vcn) 184226f3deacStedu { 184326f3deacStedu cn_t ccn = 0; 184426f3deacStedu cn_t ccl = 0; 184526f3deacStedu u_long off = 0; 184626f3deacStedu int error = 0; 184726f3deacStedu 184826f3deacStedu #if NTFS_DEBUG 184926f3deacStedu int i; 1850846c180eSbrad printf("ntfs_runtocn: run: %p, %ld bytes, vcn:%ld\n", 185126f3deacStedu run, len, (u_long) vcn); 185226f3deacStedu printf("ntfs_runtocn: run: "); 185326f3deacStedu for (i = 0; i < len; i++) 185426f3deacStedu printf("0x%02x ", run[i]); 185526f3deacStedu printf("\n"); 185626f3deacStedu #endif 185726f3deacStedu 185826f3deacStedu if (NULL == run) { 185926f3deacStedu printf("ntfs_runtocn: run == NULL\n"); 186026f3deacStedu return (EINVAL); 186126f3deacStedu } 186226f3deacStedu do { 186326f3deacStedu if (run[off] == 0) { 186426f3deacStedu printf("ntfs_runtocn: vcn too big\n"); 186526f3deacStedu return (E2BIG); 186626f3deacStedu } 186726f3deacStedu vcn -= ccl; 186826f3deacStedu error = ntfs_parserun(&ccn, &ccl, run, len, &off); 186926f3deacStedu if (error) { 187026f3deacStedu printf("ntfs_runtocn: ntfs_parserun failed\n"); 187126f3deacStedu return (error); 187226f3deacStedu } 187326f3deacStedu } while (ccl <= vcn); 187426f3deacStedu *cn = ccn + vcn; 187526f3deacStedu return (0); 187626f3deacStedu } 187726f3deacStedu #endif 187826f3deacStedu 187926f3deacStedu /* 1880274476fcStedu * this initializes toupper table & dependant variables to be ready for 1881274476fcStedu * later work 1882274476fcStedu */ 1883274476fcStedu void 18841cc0505dSjsing ntfs_toupper_init(void) 1885274476fcStedu { 1886274476fcStedu ntfs_toupper_tab = (wchar *) NULL; 1887274476fcStedu ntfs_toupper_usecount = 0; 1888274476fcStedu } 1889274476fcStedu 1890274476fcStedu /* 1891274476fcStedu * if the ntfs_toupper_tab[] is filled already, just raise use count; 1892274476fcStedu * otherwise read the data from the filesystem we are currently mounting 189326f3deacStedu */ 189426f3deacStedu int 18951cc0505dSjsing ntfs_toupper_use(struct mount *mp, struct ntfsmount *ntmp, struct proc *p) 189626f3deacStedu { 189726f3deacStedu int error = 0; 189826f3deacStedu struct vnode *vp; 189926f3deacStedu 1900274476fcStedu /* get exclusive access */ 1901274476fcStedu rw_enter_write(&ntfs_toupper_lock); 1902274476fcStedu 190326f3deacStedu /* only read the translation data from a file if it hasn't been 190426f3deacStedu * read already */ 190526f3deacStedu if (ntfs_toupper_tab) 190626f3deacStedu goto out; 190726f3deacStedu 190826f3deacStedu /* 190926f3deacStedu * Read in Unicode lowercase -> uppercase translation file. 191026f3deacStedu * XXX for now, just the first 256 entries are used anyway, 191126f3deacStedu * so don't bother reading more 191226f3deacStedu */ 1913274476fcStedu ntfs_toupper_tab = malloc(256 * 256 * sizeof(wchar), M_NTFSRDATA, 1914274476fcStedu M_WAITOK); 191526f3deacStedu 191626f3deacStedu if ((error = VFS_VGET(mp, NTFS_UPCASEINO, &vp))) 191726f3deacStedu goto out; 1918274476fcStedu error = ntfs_readattr(ntmp, VTONT(vp), NTFS_A_DATA, NULL, 1919274476fcStedu 0, 256*256*sizeof(wchar), (char *) ntfs_toupper_tab, 1920274476fcStedu NULL); 192126f3deacStedu vput(vp); 192226f3deacStedu 1923274476fcStedu out: 1924274476fcStedu ntfs_toupper_usecount++; 1925274476fcStedu rw_exit_write(&ntfs_toupper_lock); 1926274476fcStedu return (error); 1927e7116e76Stedu } 1928e7116e76Stedu 1929274476fcStedu /* 1930274476fcStedu * lower the use count and if it reaches zero, free the memory 1931274476fcStedu * tied by toupper table 1932274476fcStedu */ 1933274476fcStedu void 19341cc0505dSjsing ntfs_toupper_unuse(struct proc *p) 1935274476fcStedu { 1936274476fcStedu /* get exclusive access */ 1937274476fcStedu rw_enter_write(&ntfs_toupper_lock); 1938e7116e76Stedu 1939274476fcStedu ntfs_toupper_usecount--; 1940274476fcStedu if (ntfs_toupper_usecount == 0) { 1941274476fcStedu free(ntfs_toupper_tab, M_NTFSRDATA); 1942274476fcStedu ntfs_toupper_tab = NULL; 1943274476fcStedu } 1944274476fcStedu #ifdef DIAGNOSTIC 1945274476fcStedu else if (ntfs_toupper_usecount < 0) { 1946274476fcStedu panic("ntfs_toupper_unuse(): use count negative: %d", 1947274476fcStedu ntfs_toupper_usecount); 1948274476fcStedu } 1949274476fcStedu #endif 1950274476fcStedu 1951274476fcStedu /* release the lock */ 1952274476fcStedu rw_exit_write(&ntfs_toupper_lock); 195326f3deacStedu } 1954