1*1cc0505dSjsing /* $OpenBSD: ntfs_subr.c,v 1.29 2013/01/14 02:41:03 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 88*1cc0505dSjsing ntfs_ntvattrrele(struct ntvattr *vap) 8926f3deacStedu { 9026f3deacStedu dprintf(("ntfs_ntvattrrele: ino: %d, type: 0x%x\n", 9126f3deacStedu 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 102*1cc0505dSjsing ntfs_findvattr(struct ntfsmount *ntmp, struct ntnode *ip, 103*1cc0505dSjsing struct ntvattr **lvapp, struct ntvattr **vapp, u_int32_t type, 104*1cc0505dSjsing 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) { 11026f3deacStedu dprintf(("ntfs_findvattr: node not loaded, ino: %d\n", 11126f3deacStedu 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 } 11826f3deacStedu } 11926f3deacStedu 12026f3deacStedu *lvapp = NULL; 12126f3deacStedu *vapp = NULL; 1221573508eSmiod LIST_FOREACH(vap, &ip->i_valist, va_list) { 12326f3deacStedu ddprintf(("ntfs_findvattr: type: 0x%x, vcn: %d - %d\n", \ 12426f3deacStedu vap->va_type, (u_int32_t) vap->va_vcnstart, \ 12526f3deacStedu (u_int32_t) vap->va_vcnend)); 12626f3deacStedu if ((vap->va_type == type) && 12726f3deacStedu (vap->va_vcnstart <= vcn) && (vap->va_vcnend >= vcn) && 12826f3deacStedu (vap->va_namelen == namelen) && 12926f3deacStedu (strncmp(name, vap->va_name, namelen) == 0)) { 13026f3deacStedu *vapp = vap; 13126f3deacStedu ntfs_ntref(vap->va_ip); 13226f3deacStedu return (0); 13326f3deacStedu } 13426f3deacStedu if (vap->va_type == NTFS_A_ATTRLIST) 13526f3deacStedu *lvapp = vap; 13626f3deacStedu } 13726f3deacStedu 13826f3deacStedu return (-1); 13926f3deacStedu } 14026f3deacStedu 14126f3deacStedu /* 14226f3deacStedu * Search attribute specified in ntnode (load ntnode if necessary). 14326f3deacStedu * If not found but ATTR_A_ATTRLIST present, read it in and search through. 144cec6d865Smiod * VOP_VGET node needed, and lookup through its ntnode (load if necessary). 14526f3deacStedu * 14626f3deacStedu * ntnode should be locked 14726f3deacStedu */ 14826f3deacStedu int 149*1cc0505dSjsing ntfs_ntvattrget(struct ntfsmount *ntmp, struct ntnode *ip, u_int32_t type, 150*1cc0505dSjsing const char *name, cn_t vcn, struct ntvattr **vapp) 15126f3deacStedu { 15226f3deacStedu struct ntvattr *lvap = NULL; 15326f3deacStedu struct attr_attrlist *aalp; 15426f3deacStedu struct attr_attrlist *nextaalp; 15526f3deacStedu struct vnode *newvp; 15626f3deacStedu struct ntnode *newip; 15726f3deacStedu caddr_t alpool; 15826f3deacStedu size_t namelen, len; 15926f3deacStedu int error; 16026f3deacStedu 16126f3deacStedu *vapp = NULL; 16226f3deacStedu 16326f3deacStedu if (name) { 16426f3deacStedu dprintf(("ntfs_ntvattrget: " \ 16526f3deacStedu "ino: %d, type: 0x%x, name: %s, vcn: %d\n", \ 16626f3deacStedu ip->i_number, type, name, (u_int32_t) vcn)); 16726f3deacStedu namelen = strlen(name); 16826f3deacStedu } else { 16926f3deacStedu dprintf(("ntfs_ntvattrget: " \ 17026f3deacStedu "ino: %d, type: 0x%x, vcn: %d\n", \ 17126f3deacStedu ip->i_number, type, (u_int32_t) vcn)); 17226f3deacStedu name = ""; 17326f3deacStedu namelen = 0; 17426f3deacStedu } 17526f3deacStedu 17626f3deacStedu error = ntfs_findvattr(ntmp, ip, &lvap, vapp, type, name, namelen, vcn); 17726f3deacStedu if (error >= 0) 17826f3deacStedu return (error); 17926f3deacStedu 18026f3deacStedu if (!lvap) { 18126f3deacStedu dprintf(("ntfs_ntvattrget: UNEXISTED ATTRIBUTE: " \ 18226f3deacStedu "ino: %d, type: 0x%x, name: %s, vcn: %d\n", \ 18326f3deacStedu ip->i_number, type, name, (u_int32_t) vcn)); 18426f3deacStedu return (ENOENT); 18526f3deacStedu } 18626f3deacStedu /* Scan $ATTRIBUTE_LIST for requested attribute */ 18726f3deacStedu len = lvap->va_datalen; 188c6c302e5Stedu alpool = malloc(len, M_TEMP, M_WAITOK); 18926f3deacStedu error = ntfs_readntvattr_plain(ntmp, ip, lvap, 0, len, alpool, &len, 19026f3deacStedu NULL); 19126f3deacStedu if (error) 19226f3deacStedu goto out; 19326f3deacStedu 19426f3deacStedu aalp = (struct attr_attrlist *) alpool; 19526f3deacStedu nextaalp = NULL; 19626f3deacStedu 19726f3deacStedu for(; len > 0; aalp = nextaalp) { 19826f3deacStedu dprintf(("ntfs_ntvattrget: " \ 19926f3deacStedu "attrlist: ino: %d, attr: 0x%x, vcn: %d\n", \ 20026f3deacStedu aalp->al_inumber, aalp->al_type, \ 20126f3deacStedu (u_int32_t) 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 21526f3deacStedu dprintf(("ntfs_ntvattrget: attribute in ino: %d\n", 21626f3deacStedu 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 24026f3deacStedu dprintf(("ntfs_ntvattrget: UNEXISTED ATTRIBUTE: " \ 24126f3deacStedu "ino: %d, type: 0x%x, name: %.*s, vcn: %d\n", \ 24226f3deacStedu ip->i_number, type, (int) namelen, name, (u_int32_t) 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 254*1cc0505dSjsing ntfs_loadntnode(struct ntfsmount *ntmp, struct ntnode *ip) 25526f3deacStedu { 25626f3deacStedu struct filerec *mfrp; 257ce7d09aaSderaadt daddr64_t bn; 25826f3deacStedu int error,off; 25926f3deacStedu struct attr *ap; 26026f3deacStedu struct ntvattr *nvap; 26126f3deacStedu 26226f3deacStedu dprintf(("ntfs_loadntnode: loading ino: %d\n",ip->i_number)); 26326f3deacStedu 264c6c302e5Stedu mfrp = malloc(ntfs_bntob(ntmp->ntm_bpmftrec), M_TEMP, M_WAITOK); 26526f3deacStedu 26626f3deacStedu if (ip->i_number < NTFS_SYSNODESNUM) { 26726f3deacStedu struct buf *bp; 26826f3deacStedu 26926f3deacStedu dprintf(("ntfs_loadntnode: read system node\n")); 27026f3deacStedu 27126f3deacStedu bn = ntfs_cntobn(ntmp->ntm_mftcn) + 27226f3deacStedu ntmp->ntm_bpmftrec * ip->i_number; 27326f3deacStedu 27493f62a9eStedu error = bread(ntmp->ntm_devvp, bn, 27593f62a9eStedu ntfs_bntob(ntmp->ntm_bpmftrec), &bp); 27626f3deacStedu if (error) { 27726f3deacStedu printf("ntfs_loadntnode: BREAD FAILED\n"); 27826f3deacStedu brelse(bp); 27926f3deacStedu goto out; 28026f3deacStedu } 28126f3deacStedu memcpy(mfrp, bp->b_data, ntfs_bntob(ntmp->ntm_bpmftrec)); 282c6c302e5Stedu brelse(bp); 28326f3deacStedu } else { 28426f3deacStedu struct vnode *vp; 28526f3deacStedu 28626f3deacStedu vp = ntmp->ntm_sysvn[NTFS_MFTINO]; 28726f3deacStedu error = ntfs_readattr(ntmp, VTONT(vp), NTFS_A_DATA, NULL, 28826f3deacStedu ip->i_number * ntfs_bntob(ntmp->ntm_bpmftrec), 28926f3deacStedu ntfs_bntob(ntmp->ntm_bpmftrec), mfrp, NULL); 29026f3deacStedu if (error) { 29126f3deacStedu printf("ntfs_loadntnode: ntfs_readattr failed\n"); 29226f3deacStedu goto out; 29326f3deacStedu } 29426f3deacStedu } 29526f3deacStedu 29626f3deacStedu /* Check if magic and fixups are correct */ 29726f3deacStedu error = ntfs_procfixups(ntmp, NTFS_FILEMAGIC, (caddr_t)mfrp, 29826f3deacStedu ntfs_bntob(ntmp->ntm_bpmftrec)); 29926f3deacStedu if (error) { 30026f3deacStedu printf("ntfs_loadntnode: BAD MFT RECORD %d\n", 30126f3deacStedu (u_int32_t) ip->i_number); 30226f3deacStedu goto out; 30326f3deacStedu } 30426f3deacStedu 30526f3deacStedu dprintf(("ntfs_loadntnode: load attrs for ino: %d\n",ip->i_number)); 30626f3deacStedu off = mfrp->fr_attroff; 30726f3deacStedu ap = (struct attr *) ((caddr_t)mfrp + off); 30826f3deacStedu 30926f3deacStedu LIST_INIT(&ip->i_valist); 31026f3deacStedu 31126f3deacStedu while (ap->a_hdr.a_type != -1) { 31226f3deacStedu error = ntfs_attrtontvattr(ntmp, &nvap, ap); 31326f3deacStedu if (error) 31426f3deacStedu break; 31526f3deacStedu nvap->va_ip = ip; 31626f3deacStedu 31726f3deacStedu LIST_INSERT_HEAD(&ip->i_valist, nvap, va_list); 31826f3deacStedu 31926f3deacStedu off += ap->a_hdr.reclen; 32026f3deacStedu ap = (struct attr *) ((caddr_t)mfrp + off); 32126f3deacStedu } 32226f3deacStedu if (error) { 32326f3deacStedu printf("ntfs_loadntnode: failed to load attr ino: %d\n", 32426f3deacStedu ip->i_number); 32526f3deacStedu goto out; 32626f3deacStedu } 32726f3deacStedu 32826f3deacStedu ip->i_mainrec = mfrp->fr_mainrec; 32926f3deacStedu ip->i_nlink = mfrp->fr_nlink; 33026f3deacStedu ip->i_frflag = mfrp->fr_flags; 33126f3deacStedu 33226f3deacStedu ip->i_flag |= IN_LOADED; 33326f3deacStedu 33426f3deacStedu out: 33526f3deacStedu free(mfrp, M_TEMP); 33626f3deacStedu return (error); 33726f3deacStedu } 33826f3deacStedu 33926f3deacStedu /* 34026f3deacStedu * Routine locks ntnode and increase usecount, just opposite of 34126f3deacStedu * ntfs_ntput(). 34226f3deacStedu */ 34326f3deacStedu int 344*1cc0505dSjsing ntfs_ntget(struct ntnode *ip, struct proc *p) 34526f3deacStedu { 34626f3deacStedu dprintf(("ntfs_ntget: get ntnode %d: %p, usecount: %d\n", 34726f3deacStedu ip->i_number, ip, ip->i_usecount)); 34826f3deacStedu 34926f3deacStedu ip->i_usecount++; 3502752fedbSpedro 351c74ceabfSoga rw_enter_write(&ip->i_lock); 35226f3deacStedu 35326f3deacStedu return 0; 35426f3deacStedu } 35526f3deacStedu 35626f3deacStedu /* 35726f3deacStedu * Routine search ntnode in hash, if found: lock, inc usecount and return. 35826f3deacStedu * If not in hash allocate structure for ntnode, prefill it, lock, 35926f3deacStedu * inc count and return. 36026f3deacStedu * 36126f3deacStedu * ntnode returned locked 36226f3deacStedu */ 36326f3deacStedu int 364*1cc0505dSjsing ntfs_ntlookup(struct ntfsmount *ntmp, ino_t ino, struct ntnode **ipp, 36526f3deacStedu struct proc *p) 36626f3deacStedu { 36726f3deacStedu struct ntnode *ip; 36826f3deacStedu 36926f3deacStedu dprintf(("ntfs_ntlookup: looking for ntnode %d\n", ino)); 37026f3deacStedu 37126f3deacStedu do { 37226f3deacStedu if ((ip = ntfs_nthashlookup(ntmp->ntm_dev, ino)) != NULL) { 37326f3deacStedu ntfs_ntget(ip, p); 37426f3deacStedu dprintf(("ntfs_ntlookup: ntnode %d: %p, usecount: %d\n", 37526f3deacStedu ino, ip, ip->i_usecount)); 37626f3deacStedu *ipp = ip; 37726f3deacStedu return (0); 37826f3deacStedu } 379c74ceabfSoga } while (rw_enter(&ntfs_hashlock, RW_WRITE | RW_SLEEPFAIL)); 38026f3deacStedu 381c86f0003Skrw ip = malloc(sizeof(*ip), M_NTFSNTNODE, M_WAITOK | M_ZERO); 38226f3deacStedu ddprintf(("ntfs_ntlookup: allocating ntnode: %d: %p\n", ino, ip)); 38326f3deacStedu 38426f3deacStedu /* Generic initialization */ 38526f3deacStedu ip->i_devvp = ntmp->ntm_devvp; 38626f3deacStedu ip->i_dev = ntmp->ntm_dev; 38726f3deacStedu ip->i_number = ino; 38826f3deacStedu ip->i_mp = ntmp; 38926f3deacStedu 39026f3deacStedu LIST_INIT(&ip->i_fnlist); 391627b2c48Sthib vref(ip->i_devvp); 39226f3deacStedu 39326f3deacStedu /* init lock and lock the newborn ntnode */ 394c74ceabfSoga rw_init(&ip->i_lock, "ntnode"); 39526f3deacStedu ntfs_ntget(ip, p); 39626f3deacStedu 39726f3deacStedu ntfs_nthashins(ip); 39826f3deacStedu 399c74ceabfSoga rw_exit(&ntfs_hashlock); 40026f3deacStedu 40126f3deacStedu *ipp = ip; 40226f3deacStedu 40326f3deacStedu dprintf(("ntfs_ntlookup: ntnode %d: %p, usecount: %d\n", 40426f3deacStedu ino, ip, ip->i_usecount)); 40526f3deacStedu 40626f3deacStedu return (0); 40726f3deacStedu } 40826f3deacStedu 40926f3deacStedu /* 41026f3deacStedu * Decrement usecount of ntnode and unlock it, if usecount reach zero, 41126f3deacStedu * deallocate ntnode. 41226f3deacStedu * 41326f3deacStedu * ntnode should be locked on entry, and unlocked on return. 41426f3deacStedu */ 41526f3deacStedu void 416*1cc0505dSjsing ntfs_ntput(struct ntnode *ip, struct proc *p) 41726f3deacStedu { 41826f3deacStedu struct ntvattr *vap; 41926f3deacStedu 42026f3deacStedu dprintf(("ntfs_ntput: rele ntnode %d: %p, usecount: %d\n", 42126f3deacStedu ip->i_number, ip, ip->i_usecount)); 42226f3deacStedu 42326f3deacStedu ip->i_usecount--; 42426f3deacStedu 42526f3deacStedu #ifdef DIAGNOSTIC 42626f3deacStedu if (ip->i_usecount < 0) { 42726f3deacStedu panic("ntfs_ntput: ino: %d usecount: %d ", 42826f3deacStedu ip->i_number,ip->i_usecount); 42926f3deacStedu } 43026f3deacStedu #endif 43126f3deacStedu 4329b32ea3cSpat if (ip->i_usecount > 0) { 433c74ceabfSoga rw_exit_write(&ip->i_lock); 4349b32ea3cSpat return; 4359b32ea3cSpat } 43626f3deacStedu 4379b32ea3cSpat dprintf(("ntfs_ntput: deallocating ntnode: %d\n", ip->i_number)); 43826f3deacStedu 4399b32ea3cSpat if (LIST_FIRST(&ip->i_fnlist)) 44026f3deacStedu panic("ntfs_ntput: ntnode has fnodes"); 44126f3deacStedu 44226f3deacStedu ntfs_nthashrem(ip); 44326f3deacStedu 4449b32ea3cSpat while ((vap = LIST_FIRST(&ip->i_valist)) != NULL) { 44526f3deacStedu LIST_REMOVE(vap, va_list); 44626f3deacStedu ntfs_freentvattr(vap); 44726f3deacStedu } 4489b32ea3cSpat 4499b32ea3cSpat vrele(ip->i_devvp); 4502f33a180Skrw free(ip, M_NTFSNTNODE); 45126f3deacStedu } 45226f3deacStedu 45326f3deacStedu /* 45426f3deacStedu * increment usecount of ntnode 45526f3deacStedu */ 45626f3deacStedu void 457*1cc0505dSjsing ntfs_ntref(struct ntnode *ip) 45826f3deacStedu { 45926f3deacStedu ip->i_usecount++; 46026f3deacStedu 46126f3deacStedu dprintf(("ntfs_ntref: ino %d, usecount: %d\n", 46226f3deacStedu ip->i_number, ip->i_usecount)); 46326f3deacStedu 46426f3deacStedu } 46526f3deacStedu 46626f3deacStedu /* 46726f3deacStedu * Decrement usecount of ntnode. 46826f3deacStedu */ 46926f3deacStedu void 470*1cc0505dSjsing ntfs_ntrele(struct ntnode *ip) 47126f3deacStedu { 47226f3deacStedu dprintf(("ntfs_ntrele: rele ntnode %d: %p, usecount: %d\n", 47326f3deacStedu ip->i_number, ip, ip->i_usecount)); 47426f3deacStedu 47526f3deacStedu ip->i_usecount--; 47626f3deacStedu 47726f3deacStedu if (ip->i_usecount < 0) 47826f3deacStedu panic("ntfs_ntrele: ino: %d usecount: %d ", 47926f3deacStedu ip->i_number,ip->i_usecount); 48026f3deacStedu } 48126f3deacStedu 48226f3deacStedu /* 48326f3deacStedu * Deallocate all memory allocated for ntvattr 48426f3deacStedu */ 48526f3deacStedu void 486*1cc0505dSjsing ntfs_freentvattr(struct ntvattr *vap) 48726f3deacStedu { 48826f3deacStedu if (vap->va_flag & NTFS_AF_INRUN) { 48926f3deacStedu if (vap->va_vruncn) 49026f3deacStedu free(vap->va_vruncn, M_NTFSRUN); 49126f3deacStedu if (vap->va_vruncl) 49226f3deacStedu free(vap->va_vruncl, M_NTFSRUN); 49326f3deacStedu } else { 49426f3deacStedu if (vap->va_datap) 49526f3deacStedu free(vap->va_datap, M_NTFSRDATA); 49626f3deacStedu } 4972f33a180Skrw free(vap, M_NTFSNTVATTR); 49826f3deacStedu } 49926f3deacStedu 50026f3deacStedu /* 50126f3deacStedu * Convert disk image of attribute into ntvattr structure, 50226f3deacStedu * runs are expanded also. 50326f3deacStedu */ 50426f3deacStedu int 505*1cc0505dSjsing ntfs_attrtontvattr(struct ntfsmount *ntmp, struct ntvattr **rvapp, 50626f3deacStedu struct attr *rap) 50726f3deacStedu { 50826f3deacStedu int error, i; 50926f3deacStedu struct ntvattr *vap; 51026f3deacStedu 51126f3deacStedu error = 0; 51226f3deacStedu *rvapp = NULL; 51326f3deacStedu 514c86f0003Skrw vap = malloc(sizeof(*vap), M_NTFSNTVATTR, M_WAITOK | M_ZERO); 51526f3deacStedu vap->va_ip = NULL; 51626f3deacStedu vap->va_flag = rap->a_hdr.a_flag; 51726f3deacStedu vap->va_type = rap->a_hdr.a_type; 51826f3deacStedu vap->va_compression = rap->a_hdr.a_compression; 51926f3deacStedu vap->va_index = rap->a_hdr.a_index; 52026f3deacStedu 52126f3deacStedu ddprintf(("type: 0x%x, index: %d", vap->va_type, vap->va_index)); 52226f3deacStedu 52326f3deacStedu vap->va_namelen = rap->a_hdr.a_namelen; 52426f3deacStedu if (rap->a_hdr.a_namelen) { 52526f3deacStedu wchar *unp = (wchar *) ((caddr_t) rap + rap->a_hdr.a_nameoff); 52626f3deacStedu ddprintf((", name:[")); 52726f3deacStedu for (i = 0; i < vap->va_namelen; i++) { 52826f3deacStedu vap->va_name[i] = unp[i]; 52926f3deacStedu ddprintf(("%c", vap->va_name[i])); 53026f3deacStedu } 53126f3deacStedu ddprintf(("]")); 53226f3deacStedu } 53326f3deacStedu if (vap->va_flag & NTFS_AF_INRUN) { 53426f3deacStedu ddprintf((", nonres.")); 53526f3deacStedu vap->va_datalen = rap->a_nr.a_datalen; 53626f3deacStedu vap->va_allocated = rap->a_nr.a_allocated; 53726f3deacStedu vap->va_vcnstart = rap->a_nr.a_vcnstart; 53826f3deacStedu vap->va_vcnend = rap->a_nr.a_vcnend; 53926f3deacStedu vap->va_compressalg = rap->a_nr.a_compressalg; 54026f3deacStedu error = ntfs_runtovrun(&(vap->va_vruncn), &(vap->va_vruncl), 54126f3deacStedu &(vap->va_vruncnt), 54226f3deacStedu (caddr_t) rap + rap->a_nr.a_dataoff); 54326f3deacStedu } else { 54426f3deacStedu vap->va_compressalg = 0; 54526f3deacStedu ddprintf((", res.")); 54626f3deacStedu vap->va_datalen = rap->a_r.a_datalen; 54726f3deacStedu vap->va_allocated = rap->a_r.a_datalen; 54826f3deacStedu vap->va_vcnstart = 0; 54926f3deacStedu vap->va_vcnend = ntfs_btocn(vap->va_allocated); 550c6c302e5Stedu vap->va_datap = malloc(vap->va_datalen, M_NTFSRDATA, M_WAITOK); 55126f3deacStedu memcpy(vap->va_datap, (caddr_t) rap + rap->a_r.a_dataoff, 55226f3deacStedu rap->a_r.a_datalen); 55326f3deacStedu } 55426f3deacStedu ddprintf((", len: %d", vap->va_datalen)); 55526f3deacStedu 55626f3deacStedu if (error) 5572f33a180Skrw free(vap, M_NTFSNTVATTR); 55826f3deacStedu else 55926f3deacStedu *rvapp = vap; 56026f3deacStedu 56126f3deacStedu ddprintf(("\n")); 56226f3deacStedu 56326f3deacStedu return (error); 56426f3deacStedu } 56526f3deacStedu 56626f3deacStedu /* 56726f3deacStedu * Expand run into more utilizable and more memory eating format. 56826f3deacStedu */ 56926f3deacStedu int 570*1cc0505dSjsing ntfs_runtovrun(cn_t **rcnp, cn_t **rclp, u_long *rcntp, u_int8_t *run) 57126f3deacStedu { 57226f3deacStedu u_int32_t off; 57326f3deacStedu u_int32_t sz, i; 57426f3deacStedu cn_t *cn; 57526f3deacStedu cn_t *cl; 57626f3deacStedu u_long cnt; 57726f3deacStedu cn_t prev; 57826f3deacStedu cn_t tmp; 57926f3deacStedu 58026f3deacStedu off = 0; 58126f3deacStedu cnt = 0; 58226f3deacStedu i = 0; 58326f3deacStedu while (run[off]) { 58426f3deacStedu off += (run[off] & 0xF) + ((run[off] >> 4) & 0xF) + 1; 58526f3deacStedu cnt++; 58626f3deacStedu } 587c6c302e5Stedu cn = malloc(cnt * sizeof(cn_t), M_NTFSRUN, M_WAITOK); 588c6c302e5Stedu cl = malloc(cnt * sizeof(cn_t), M_NTFSRUN, M_WAITOK); 58926f3deacStedu 59026f3deacStedu off = 0; 59126f3deacStedu cnt = 0; 59226f3deacStedu prev = 0; 59326f3deacStedu while (run[off]) { 59426f3deacStedu 59526f3deacStedu sz = run[off++]; 59626f3deacStedu cl[cnt] = 0; 59726f3deacStedu 59826f3deacStedu for (i = 0; i < (sz & 0xF); i++) 59926f3deacStedu cl[cnt] += (u_int32_t) run[off++] << (i << 3); 60026f3deacStedu 60126f3deacStedu sz >>= 4; 60226f3deacStedu if (run[off + sz - 1] & 0x80) { 60326f3deacStedu tmp = ((u_int64_t) - 1) << (sz << 3); 60426f3deacStedu for (i = 0; i < sz; i++) 60526f3deacStedu tmp |= (u_int64_t) run[off++] << (i << 3); 60626f3deacStedu } else { 60726f3deacStedu tmp = 0; 60826f3deacStedu for (i = 0; i < sz; i++) 60926f3deacStedu tmp |= (u_int64_t) run[off++] << (i << 3); 61026f3deacStedu } 61126f3deacStedu if (tmp) 61226f3deacStedu prev = cn[cnt] = prev + tmp; 61326f3deacStedu else 61426f3deacStedu cn[cnt] = tmp; 61526f3deacStedu 61626f3deacStedu cnt++; 61726f3deacStedu } 61826f3deacStedu *rcnp = cn; 61926f3deacStedu *rclp = cl; 62026f3deacStedu *rcntp = cnt; 62126f3deacStedu return (0); 62226f3deacStedu } 62326f3deacStedu 62426f3deacStedu /* 62526f3deacStedu * Compare unicode and ascii string case insens. 62626f3deacStedu */ 62705c5dae5Sjsing int 628*1cc0505dSjsing ntfs_uastricmp(struct ntfsmount *ntmp, const wchar *ustr, size_t ustrlen, 629*1cc0505dSjsing const char *astr, size_t astrlen) 63026f3deacStedu { 63126f3deacStedu size_t i; 63226f3deacStedu int res; 63326f3deacStedu const char *astrend = astr + astrlen; 63426f3deacStedu 63526f3deacStedu for (i = 0; i < ustrlen && astr < astrend; i++) { 63626f3deacStedu res = (*ntmp->ntm_wcmp)(NTFS_TOUPPER(ustr[i]), 63726f3deacStedu NTFS_TOUPPER((*ntmp->ntm_wget)(&astr)) ); 63826f3deacStedu if (res) 63926f3deacStedu return res; 64026f3deacStedu } 64126f3deacStedu 64226f3deacStedu if (i == ustrlen && astr == astrend) 64326f3deacStedu return 0; 64426f3deacStedu else if (i == ustrlen) 64526f3deacStedu return -1; 64626f3deacStedu else 64726f3deacStedu return 1; 64826f3deacStedu } 64926f3deacStedu 65026f3deacStedu /* 65126f3deacStedu * Compare unicode and ascii string case sens. 65226f3deacStedu */ 65305c5dae5Sjsing int 654*1cc0505dSjsing ntfs_uastrcmp(struct ntfsmount *ntmp, const wchar *ustr, size_t ustrlen, 655*1cc0505dSjsing const char *astr, size_t astrlen) 65626f3deacStedu { 65726f3deacStedu size_t i; 65826f3deacStedu int res; 65926f3deacStedu const char *astrend = astr + astrlen; 66026f3deacStedu 66126f3deacStedu for (i = 0; (i < ustrlen) && (astr < astrend); i++) { 66226f3deacStedu res = (*ntmp->ntm_wcmp)(ustr[i], (*ntmp->ntm_wget)(&astr)); 66326f3deacStedu if (res) 66426f3deacStedu return res; 66526f3deacStedu } 66626f3deacStedu 66726f3deacStedu if (i == ustrlen && astr == astrend) 66826f3deacStedu return 0; 66926f3deacStedu else if (i == ustrlen) 67026f3deacStedu return -1; 67126f3deacStedu else 67226f3deacStedu return 1; 67326f3deacStedu } 67426f3deacStedu 67526f3deacStedu /* 67626f3deacStedu * Search fnode in ntnode, if not found allocate and preinitialize. 67726f3deacStedu * 67826f3deacStedu * ntnode should be locked on entry. 67926f3deacStedu */ 68026f3deacStedu int 681*1cc0505dSjsing ntfs_fget(struct ntfsmount *ntmp, struct ntnode *ip, int attrtype, 682*1cc0505dSjsing char *attrname, struct fnode **fpp) 68326f3deacStedu { 68426f3deacStedu struct fnode *fp; 68526f3deacStedu 68626f3deacStedu dprintf(("ntfs_fget: ino: %d, attrtype: 0x%x, attrname: %s\n", 68726f3deacStedu ip->i_number,attrtype, attrname?attrname:"")); 68826f3deacStedu *fpp = NULL; 6891573508eSmiod LIST_FOREACH(fp, &ip->i_fnlist, f_fnlist) { 69026f3deacStedu dprintf(("ntfs_fget: fnode: attrtype: %d, attrname: %s\n", 69126f3deacStedu fp->f_attrtype, fp->f_attrname?fp->f_attrname:"")); 69226f3deacStedu 69326f3deacStedu if ((attrtype == fp->f_attrtype) && 69426f3deacStedu ((!attrname && !fp->f_attrname) || 69526f3deacStedu (attrname && fp->f_attrname && 69626f3deacStedu !strcmp(attrname,fp->f_attrname)))){ 69726f3deacStedu dprintf(("ntfs_fget: found existed: %p\n",fp)); 69826f3deacStedu *fpp = fp; 69926f3deacStedu } 70026f3deacStedu } 70126f3deacStedu 70226f3deacStedu if (*fpp) 70326f3deacStedu return (0); 70426f3deacStedu 705c86f0003Skrw fp = malloc(sizeof(*fp), M_NTFSFNODE, M_WAITOK | M_ZERO); 70626f3deacStedu dprintf(("ntfs_fget: allocating fnode: %p\n",fp)); 70726f3deacStedu 70826f3deacStedu fp->f_ip = ip; 70926f3deacStedu fp->f_attrname = attrname; 71026f3deacStedu if (fp->f_attrname) fp->f_flag |= FN_AATTRNAME; 71126f3deacStedu fp->f_attrtype = attrtype; 71226f3deacStedu 71326f3deacStedu ntfs_ntref(ip); 71426f3deacStedu 71526f3deacStedu LIST_INSERT_HEAD(&ip->i_fnlist, fp, f_fnlist); 71626f3deacStedu 71726f3deacStedu *fpp = fp; 71826f3deacStedu 71926f3deacStedu return (0); 72026f3deacStedu } 72126f3deacStedu 72226f3deacStedu /* 72326f3deacStedu * Deallocate fnode, remove it from ntnode's fnode list. 72426f3deacStedu * 72526f3deacStedu * ntnode should be locked. 72626f3deacStedu */ 72726f3deacStedu void 728*1cc0505dSjsing ntfs_frele(struct fnode *fp) 72926f3deacStedu { 73026f3deacStedu struct ntnode *ip = FTONT(fp); 73126f3deacStedu 73226f3deacStedu dprintf(("ntfs_frele: fnode: %p for %d: %p\n", fp, ip->i_number, ip)); 73326f3deacStedu 73426f3deacStedu dprintf(("ntfs_frele: deallocating fnode\n")); 73526f3deacStedu LIST_REMOVE(fp,f_fnlist); 73626f3deacStedu if (fp->f_flag & FN_AATTRNAME) 737e8821f89Shshoexer free(fp->f_attrname, M_TEMP); 73826f3deacStedu if (fp->f_dirblbuf) 739e8821f89Shshoexer free(fp->f_dirblbuf, M_NTFSDIR); 7402f33a180Skrw free(fp, M_NTFSFNODE); 74126f3deacStedu ntfs_ntrele(ip); 74226f3deacStedu } 74326f3deacStedu 74426f3deacStedu /* 74526f3deacStedu * Lookup attribute name in format: [[:$ATTR_TYPE]:$ATTR_NAME], 74626f3deacStedu * $ATTR_TYPE is searched in attrdefs read from $AttrDefs. 74726f3deacStedu * If $ATTR_TYPE not specified, ATTR_A_DATA assumed. 74826f3deacStedu */ 74905c5dae5Sjsing int 750*1cc0505dSjsing ntfs_ntlookupattr(struct ntfsmount *ntmp, const char *name, int namelen, 751*1cc0505dSjsing int *attrtype, char **attrname) 75226f3deacStedu { 75326f3deacStedu const char *sys; 75426f3deacStedu size_t syslen, i; 75526f3deacStedu struct ntvattrdef *adp; 75626f3deacStedu 75726f3deacStedu if (namelen == 0) 75826f3deacStedu return (0); 75926f3deacStedu 76026f3deacStedu if (name[0] == '$') { 76126f3deacStedu sys = name; 76226f3deacStedu for (syslen = 0; syslen < namelen; syslen++) { 76326f3deacStedu if(sys[syslen] == ':') { 76426f3deacStedu name++; 76526f3deacStedu namelen--; 76626f3deacStedu break; 76726f3deacStedu } 76826f3deacStedu } 76926f3deacStedu name += syslen; 77026f3deacStedu namelen -= syslen; 77126f3deacStedu 77226f3deacStedu adp = ntmp->ntm_ad; 77326f3deacStedu for (i = 0; i < ntmp->ntm_adnum; i++, adp++){ 77426f3deacStedu if (syslen != adp->ad_namelen || 77526f3deacStedu strncmp(sys, adp->ad_name, syslen) != 0) 77626f3deacStedu continue; 77726f3deacStedu 77826f3deacStedu *attrtype = adp->ad_type; 77926f3deacStedu goto out; 78026f3deacStedu } 78126f3deacStedu return (ENOENT); 78226f3deacStedu } 78326f3deacStedu 78426f3deacStedu out: 78526f3deacStedu if (namelen) { 786c6c302e5Stedu *attrname = malloc(namelen + 1, M_TEMP, M_WAITOK); 787c6c302e5Stedu memcpy(*attrname, name, namelen); 78826f3deacStedu (*attrname)[namelen] = '\0'; 78926f3deacStedu *attrtype = NTFS_A_DATA; 79026f3deacStedu } 79126f3deacStedu 79226f3deacStedu return (0); 79326f3deacStedu } 79426f3deacStedu 79526f3deacStedu /* 796*1cc0505dSjsing * Lookup specified node for filename, matching cnp, return fnode filled. 79726f3deacStedu */ 79826f3deacStedu int 799*1cc0505dSjsing ntfs_ntlookupfile(struct ntfsmount *ntmp, struct vnode *vp, 800*1cc0505dSjsing struct componentname *cnp, struct vnode **vpp, struct proc *p) 80126f3deacStedu { 80226f3deacStedu struct fnode *fp = VTOF(vp); 80326f3deacStedu struct ntnode *ip = FTONT(fp); 8046f6d0059Sjsing struct ntvattr *vap = NULL; /* Root attribute */ 80526f3deacStedu cn_t cn = 0; /* VCN in current attribute */ 8066f6d0059Sjsing caddr_t rdbuf = NULL; /* Buffer to read directory's blocks */ 80726f3deacStedu u_int32_t blsize; 80826f3deacStedu u_int32_t rdsize; /* Length of data to read from current block */ 80926f3deacStedu struct attr_indexentry *iep; 81026f3deacStedu int error, res, anamelen, fnamelen; 81126f3deacStedu const char *fname,*aname; 81226f3deacStedu u_int32_t aoff; 81326f3deacStedu int attrtype = NTFS_A_DATA; 81426f3deacStedu char *attrname = NULL; 81526f3deacStedu struct fnode *nfp; 81626f3deacStedu struct vnode *nvp; 81726f3deacStedu enum vtype f_type; 81826f3deacStedu int fullscan = 0; 81926f3deacStedu struct ntfs_lookup_ctx *lookup_ctx = NULL, *tctx; 82026f3deacStedu 82126f3deacStedu error = ntfs_ntget(ip, p); 82226f3deacStedu if (error) 82326f3deacStedu return (error); 82426f3deacStedu 82526f3deacStedu error = ntfs_ntvattrget(ntmp, ip, NTFS_A_INDXROOT, "$I30", 0, &vap); 8266f6d0059Sjsing if (error || (vap->va_flag & NTFS_AF_INRUN)) { 8276f6d0059Sjsing error = ENOTDIR; 8286f6d0059Sjsing goto fail; 8296f6d0059Sjsing } 83026f3deacStedu 83126f3deacStedu /* 83226f3deacStedu * Divide file name into: foofilefoofilefoofile[:attrspec] 83326f3deacStedu * Store like this: fname:fnamelen [aname:anamelen] 83426f3deacStedu */ 83526f3deacStedu fname = cnp->cn_nameptr; 83626f3deacStedu aname = NULL; 83726f3deacStedu anamelen = 0; 83826f3deacStedu for (fnamelen = 0; fnamelen < cnp->cn_namelen; fnamelen++) 83926f3deacStedu if(fname[fnamelen] == ':') { 84026f3deacStedu aname = fname + fnamelen + 1; 84126f3deacStedu anamelen = cnp->cn_namelen - fnamelen - 1; 84226f3deacStedu dprintf(("ntfs_ntlookupfile: %s (%d), attr: %s (%d)\n", 84326f3deacStedu fname, fnamelen, aname, anamelen)); 84426f3deacStedu break; 84526f3deacStedu } 84626f3deacStedu 84726f3deacStedu blsize = vap->va_a_iroot->ir_size; 84826f3deacStedu dprintf(("ntfs_ntlookupfile: blksz: %d\n", blsize)); 84926f3deacStedu 850c6c302e5Stedu rdbuf = malloc(blsize, M_TEMP, M_WAITOK); 85126f3deacStedu 85226f3deacStedu loop: 85326f3deacStedu rdsize = vap->va_datalen; 85426f3deacStedu dprintf(("ntfs_ntlookupfile: rdsz: %d\n", rdsize)); 85526f3deacStedu 85626f3deacStedu error = ntfs_readattr(ntmp, ip, NTFS_A_INDXROOT, "$I30", 85726f3deacStedu 0, rdsize, rdbuf, NULL); 85826f3deacStedu if (error) 85926f3deacStedu goto fail; 86026f3deacStedu 86126f3deacStedu aoff = sizeof(struct attr_indexroot); 86226f3deacStedu 86326f3deacStedu do { 86426f3deacStedu iep = (struct attr_indexentry *) (rdbuf + aoff); 86526f3deacStedu 86626f3deacStedu for (; !(iep->ie_flag & NTFS_IEFLAG_LAST) && (rdsize > aoff); 86726f3deacStedu aoff += iep->reclen, 86826f3deacStedu iep = (struct attr_indexentry *) (rdbuf + aoff)) 86926f3deacStedu { 87026f3deacStedu ddprintf(("scan: %d, %d\n", 87126f3deacStedu (u_int32_t) iep->ie_number, 87226f3deacStedu (u_int32_t) iep->ie_fnametype)); 87326f3deacStedu 87426f3deacStedu /* check the name - the case-insensitive check 87526f3deacStedu * has to come first, to break from this for loop 87626f3deacStedu * if needed, so we can dive correctly */ 87726f3deacStedu res = ntfs_uastricmp(ntmp, iep->ie_fname, 87826f3deacStedu iep->ie_fnamelen, fname, fnamelen); 87926f3deacStedu if (!fullscan) { 88026f3deacStedu if (res > 0) break; 88126f3deacStedu if (res < 0) continue; 88226f3deacStedu } 88326f3deacStedu 88426f3deacStedu if (iep->ie_fnametype == 0 || 88526f3deacStedu !(ntmp->ntm_flag & NTFS_MFLAG_CASEINS)) 88626f3deacStedu { 88726f3deacStedu res = ntfs_uastrcmp(ntmp, iep->ie_fname, 88826f3deacStedu iep->ie_fnamelen, fname, fnamelen); 88926f3deacStedu if (res != 0 && !fullscan) continue; 89026f3deacStedu } 89126f3deacStedu 89226f3deacStedu /* if we perform full scan, the file does not match 89326f3deacStedu * and this is subnode, dive */ 89426f3deacStedu if (fullscan && res != 0) { 89526f3deacStedu if (iep->ie_flag & NTFS_IEFLAG_SUBNODE) { 896e8821f89Shshoexer tctx = malloc(sizeof(struct ntfs_lookup_ctx), 89726f3deacStedu M_TEMP, M_WAITOK); 89826f3deacStedu tctx->aoff = aoff + iep->reclen; 89926f3deacStedu tctx->rdsize = rdsize; 90026f3deacStedu tctx->cn = cn; 90126f3deacStedu tctx->prev = lookup_ctx; 90226f3deacStedu lookup_ctx = tctx; 90326f3deacStedu break; 90426f3deacStedu } else 90526f3deacStedu continue; 90626f3deacStedu } 90726f3deacStedu 90826f3deacStedu if (aname) { 90926f3deacStedu error = ntfs_ntlookupattr(ntmp, 91026f3deacStedu aname, anamelen, 91126f3deacStedu &attrtype, &attrname); 91226f3deacStedu if (error) 91326f3deacStedu goto fail; 91426f3deacStedu } 91526f3deacStedu 91626f3deacStedu /* Check if we've found ourselves */ 91726f3deacStedu if ((iep->ie_number == ip->i_number) && 91826f3deacStedu (attrtype == fp->f_attrtype) && 91926f3deacStedu ((!attrname && !fp->f_attrname) || 92026f3deacStedu (attrname && fp->f_attrname && 92126f3deacStedu !strcmp(attrname, fp->f_attrname)))) 92226f3deacStedu { 923627b2c48Sthib vref(vp); 92426f3deacStedu *vpp = vp; 92526f3deacStedu error = 0; 92626f3deacStedu goto fail; 92726f3deacStedu } 92826f3deacStedu 92926f3deacStedu /* free the buffer returned by ntfs_ntlookupattr() */ 93026f3deacStedu if (attrname) { 931e8821f89Shshoexer free(attrname, M_TEMP); 93226f3deacStedu attrname = NULL; 93326f3deacStedu } 93426f3deacStedu 93526f3deacStedu /* vget node, but don't load it */ 93626f3deacStedu error = ntfs_vgetex(ntmp->ntm_mountp, 93726f3deacStedu iep->ie_number, attrtype, attrname, 93826f3deacStedu LK_EXCLUSIVE, VG_DONTLOADIN | VG_DONTVALIDFN, 93926f3deacStedu curproc, &nvp); 94026f3deacStedu if (error) 94126f3deacStedu goto fail; 94226f3deacStedu 94326f3deacStedu nfp = VTOF(nvp); 94426f3deacStedu 94526f3deacStedu if (nfp->f_flag & FN_VALID) { 94626f3deacStedu *vpp = nvp; 94726f3deacStedu goto fail; 94826f3deacStedu } 94926f3deacStedu 95026f3deacStedu nfp->f_fflag = iep->ie_fflag; 95126f3deacStedu nfp->f_pnumber = iep->ie_fpnumber; 95226f3deacStedu nfp->f_times = iep->ie_ftimes; 95326f3deacStedu 95426f3deacStedu if((nfp->f_fflag & NTFS_FFLAG_DIR) && 95526f3deacStedu (nfp->f_attrtype == NTFS_A_DATA) && 95626f3deacStedu (nfp->f_attrname == NULL)) 95726f3deacStedu f_type = VDIR; 95826f3deacStedu else 95926f3deacStedu f_type = VREG; 96026f3deacStedu 96126f3deacStedu nvp->v_type = f_type; 96226f3deacStedu 96326f3deacStedu if ((nfp->f_attrtype == NTFS_A_DATA) && 96426f3deacStedu (nfp->f_attrname == NULL)) 96526f3deacStedu { 96626f3deacStedu /* Opening default attribute */ 96726f3deacStedu nfp->f_size = iep->ie_fsize; 96826f3deacStedu nfp->f_allocated = iep->ie_fallocated; 96926f3deacStedu nfp->f_flag |= FN_PRELOADED; 97026f3deacStedu } else { 97126f3deacStedu error = ntfs_filesize(ntmp, nfp, 97226f3deacStedu &nfp->f_size, &nfp->f_allocated); 97326f3deacStedu if (error) { 97426f3deacStedu vput(nvp); 97526f3deacStedu goto fail; 97626f3deacStedu } 97726f3deacStedu } 97826f3deacStedu 97926f3deacStedu nfp->f_flag &= ~FN_VALID; 98026f3deacStedu *vpp = nvp; 98126f3deacStedu goto fail; 98226f3deacStedu } 98326f3deacStedu 98426f3deacStedu /* Dive if possible */ 98526f3deacStedu if (iep->ie_flag & NTFS_IEFLAG_SUBNODE) { 98626f3deacStedu dprintf(("ntfs_ntlookupfile: diving\n")); 98726f3deacStedu 98826f3deacStedu cn = *(cn_t *) (rdbuf + aoff + 98926f3deacStedu iep->reclen - sizeof(cn_t)); 99026f3deacStedu rdsize = blsize; 99126f3deacStedu 99226f3deacStedu error = ntfs_readattr(ntmp, ip, NTFS_A_INDX, "$I30", 99326f3deacStedu ntfs_cntob(cn), rdsize, rdbuf, NULL); 99426f3deacStedu if (error) 99526f3deacStedu goto fail; 99626f3deacStedu 99726f3deacStedu error = ntfs_procfixups(ntmp, NTFS_INDXMAGIC, 99826f3deacStedu rdbuf, rdsize); 99926f3deacStedu if (error) 100026f3deacStedu goto fail; 100126f3deacStedu 100226f3deacStedu aoff = (((struct attr_indexalloc *) rdbuf)->ia_hdrsize + 100326f3deacStedu 0x18); 100426f3deacStedu } else if (fullscan && lookup_ctx) { 100526f3deacStedu cn = lookup_ctx->cn; 100626f3deacStedu aoff = lookup_ctx->aoff; 100726f3deacStedu rdsize = lookup_ctx->rdsize; 100826f3deacStedu 100926f3deacStedu error = ntfs_readattr(ntmp, ip, 101026f3deacStedu (cn == 0) ? NTFS_A_INDXROOT : NTFS_A_INDX, 101126f3deacStedu "$I30", ntfs_cntob(cn), rdsize, rdbuf, NULL); 101226f3deacStedu if (error) 101326f3deacStedu goto fail; 101426f3deacStedu 101526f3deacStedu if (cn != 0) { 101626f3deacStedu error = ntfs_procfixups(ntmp, NTFS_INDXMAGIC, 101726f3deacStedu rdbuf, rdsize); 101826f3deacStedu if (error) 101926f3deacStedu goto fail; 102026f3deacStedu } 102126f3deacStedu 102226f3deacStedu tctx = lookup_ctx; 102326f3deacStedu lookup_ctx = lookup_ctx->prev; 1024e8821f89Shshoexer free(tctx, M_TEMP); 102526f3deacStedu } else { 102626f3deacStedu dprintf(("ntfs_ntlookupfile: nowhere to dive :-(\n")); 102726f3deacStedu error = ENOENT; 102826f3deacStedu break; 102926f3deacStedu } 103026f3deacStedu } while (1); 103126f3deacStedu 103226f3deacStedu /* perform full scan if no entry was found */ 103326f3deacStedu if (!fullscan && error == ENOENT) { 103426f3deacStedu fullscan = 1; 103526f3deacStedu cn = 0; /* need zero, used by lookup_ctx */ 103626f3deacStedu 103726f3deacStedu ddprintf(("ntfs_ntlookupfile: fullscan performed for: %.*s\n", 103826f3deacStedu (int) fnamelen, fname)); 103926f3deacStedu goto loop; 104026f3deacStedu } 104126f3deacStedu 104226f3deacStedu dprintf(("finish\n")); 104326f3deacStedu 104426f3deacStedu fail: 10456f6d0059Sjsing if (vap) 10466f6d0059Sjsing ntfs_ntvattrrele(vap); 10476f6d0059Sjsing if (rdbuf) 10486f6d0059Sjsing free(rdbuf, M_TEMP); 104926f3deacStedu if (attrname) 1050e8821f89Shshoexer free(attrname, M_TEMP); 105126f3deacStedu if (lookup_ctx) { 105226f3deacStedu while(lookup_ctx) { 105326f3deacStedu tctx = lookup_ctx; 105426f3deacStedu lookup_ctx = lookup_ctx->prev; 1055e8821f89Shshoexer free(tctx, M_TEMP); 105626f3deacStedu } 105726f3deacStedu } 105826f3deacStedu ntfs_ntput(ip, p); 105926f3deacStedu return (error); 106026f3deacStedu } 106126f3deacStedu 106226f3deacStedu /* 106326f3deacStedu * Check if name type is permitted to show. 106426f3deacStedu */ 106526f3deacStedu int 1066*1cc0505dSjsing ntfs_isnamepermitted(struct ntfsmount *ntmp, struct attr_indexentry *iep) 106726f3deacStedu { 106826f3deacStedu if (ntmp->ntm_flag & NTFS_MFLAG_ALLNAMES) 106926f3deacStedu return 1; 107026f3deacStedu 107126f3deacStedu switch (iep->ie_fnametype) { 107226f3deacStedu case 2: 107326f3deacStedu ddprintf(("ntfs_isnamepermitted: skipped DOS name\n")); 107426f3deacStedu return 0; 107526f3deacStedu case 0: case 1: case 3: 107626f3deacStedu return 1; 107726f3deacStedu default: 107826f3deacStedu printf("ntfs_isnamepermitted: " \ 107926f3deacStedu "WARNING! Unknown file name type: %d\n", 108026f3deacStedu iep->ie_fnametype); 108126f3deacStedu break; 108226f3deacStedu } 108326f3deacStedu return 0; 108426f3deacStedu } 108526f3deacStedu 108626f3deacStedu /* 108726f3deacStedu * Read ntfs dir like stream of attr_indexentry, not like btree of them. 108826f3deacStedu * This is done by scanning $BITMAP:$I30 for busy clusters and reading them. 108926f3deacStedu * Of course $INDEX_ROOT:$I30 is read before. Last read values are stored in 109026f3deacStedu * fnode, so we can skip toward record number num almost immediately. 109126f3deacStedu * Anyway this is rather slow routine. The problem is that we don't know 109226f3deacStedu * how many records are there in $INDEX_ALLOCATION:$I30 block. 109326f3deacStedu */ 109426f3deacStedu int 1095*1cc0505dSjsing ntfs_ntreaddir(struct ntfsmount *ntmp, struct fnode *fp, u_int32_t num, 1096*1cc0505dSjsing struct attr_indexentry **riepp, struct proc *p) 109726f3deacStedu { 109826f3deacStedu struct ntnode *ip = FTONT(fp); 109926f3deacStedu struct ntvattr *vap = NULL; /* IndexRoot attribute */ 110026f3deacStedu struct ntvattr *bmvap = NULL; /* BitMap attribute */ 110126f3deacStedu struct ntvattr *iavap = NULL; /* IndexAllocation attribute */ 110226f3deacStedu caddr_t rdbuf; /* Buffer to read directory's blocks */ 11036978a3abSbrad u_int8_t *bmp = NULL; /* Bitmap */ 110426f3deacStedu u_int32_t blsize; /* Index allocation size (2048) */ 110526f3deacStedu u_int32_t rdsize; /* Length of data to read */ 110626f3deacStedu u_int32_t attrnum; /* Current attribute type */ 110726f3deacStedu u_int32_t cpbl = 1; /* Clusters per directory block */ 110826f3deacStedu u_int32_t blnum; 110926f3deacStedu struct attr_indexentry *iep; 111026f3deacStedu int error = ENOENT; 111126f3deacStedu u_int32_t aoff, cnum; 111226f3deacStedu 111326f3deacStedu dprintf(("ntfs_ntreaddir: read ino: %d, num: %d\n", ip->i_number, num)); 111426f3deacStedu error = ntfs_ntget(ip, p); 111526f3deacStedu if (error) 111626f3deacStedu return (error); 111726f3deacStedu 111826f3deacStedu error = ntfs_ntvattrget(ntmp, ip, NTFS_A_INDXROOT, "$I30", 0, &vap); 11196f6d0059Sjsing if (error) { 11206f6d0059Sjsing error = ENOTDIR; 11216f6d0059Sjsing goto fail; 11226f6d0059Sjsing } 112326f3deacStedu 112426f3deacStedu if (fp->f_dirblbuf == NULL) { 112526f3deacStedu fp->f_dirblsz = vap->va_a_iroot->ir_size; 1126c6c302e5Stedu fp->f_dirblbuf = malloc(MAX(vap->va_datalen,fp->f_dirblsz), 1127c6c302e5Stedu M_NTFSDIR, M_WAITOK); 112826f3deacStedu } 112926f3deacStedu 113026f3deacStedu blsize = fp->f_dirblsz; 113126f3deacStedu rdbuf = fp->f_dirblbuf; 113226f3deacStedu 1133846c180eSbrad dprintf(("ntfs_ntreaddir: rdbuf: %p, blsize: %d\n", rdbuf, blsize)); 113426f3deacStedu 113526f3deacStedu if (vap->va_a_iroot->ir_flag & NTFS_IRFLAG_INDXALLOC) { 113626f3deacStedu error = ntfs_ntvattrget(ntmp, ip, NTFS_A_INDXBITMAP, "$I30", 113726f3deacStedu 0, &bmvap); 113826f3deacStedu if (error) { 113926f3deacStedu error = ENOTDIR; 114026f3deacStedu goto fail; 114126f3deacStedu } 1142c6c302e5Stedu bmp = malloc(bmvap->va_datalen, M_TEMP, M_WAITOK); 114326f3deacStedu error = ntfs_readattr(ntmp, ip, NTFS_A_INDXBITMAP, "$I30", 0, 114426f3deacStedu bmvap->va_datalen, bmp, NULL); 114526f3deacStedu if (error) 114626f3deacStedu goto fail; 114726f3deacStedu 114826f3deacStedu error = ntfs_ntvattrget(ntmp, ip, NTFS_A_INDX, "$I30", 114926f3deacStedu 0, &iavap); 115026f3deacStedu if (error) { 115126f3deacStedu error = ENOTDIR; 115226f3deacStedu goto fail; 115326f3deacStedu } 115426f3deacStedu cpbl = ntfs_btocn(blsize + ntfs_cntob(1) - 1); 115526f3deacStedu dprintf(("ntfs_ntreaddir: indexalloc: %d, cpbl: %d\n", 115626f3deacStedu iavap->va_datalen, cpbl)); 115726f3deacStedu } else { 115826f3deacStedu dprintf(("ntfs_ntreadidir: w/o BitMap and IndexAllocation\n")); 115926f3deacStedu iavap = bmvap = NULL; 116026f3deacStedu bmp = NULL; 116126f3deacStedu } 116226f3deacStedu 116326f3deacStedu /* Try use previous values */ 116426f3deacStedu if ((fp->f_lastdnum < num) && (fp->f_lastdnum != 0)) { 116526f3deacStedu attrnum = fp->f_lastdattr; 116626f3deacStedu aoff = fp->f_lastdoff; 116726f3deacStedu blnum = fp->f_lastdblnum; 116826f3deacStedu cnum = fp->f_lastdnum; 116926f3deacStedu } else { 117026f3deacStedu attrnum = NTFS_A_INDXROOT; 117126f3deacStedu aoff = sizeof(struct attr_indexroot); 117226f3deacStedu blnum = 0; 117326f3deacStedu cnum = 0; 117426f3deacStedu } 117526f3deacStedu 117626f3deacStedu do { 117726f3deacStedu dprintf(("ntfs_ntreaddir: scan: 0x%x, %d, %d, %d, %d\n", 117826f3deacStedu attrnum, (u_int32_t) blnum, cnum, num, aoff)); 117926f3deacStedu rdsize = (attrnum == NTFS_A_INDXROOT) ? vap->va_datalen : blsize; 118026f3deacStedu error = ntfs_readattr(ntmp, ip, attrnum, "$I30", 118126f3deacStedu ntfs_cntob(blnum * cpbl), rdsize, rdbuf, NULL); 118226f3deacStedu if (error) 118326f3deacStedu goto fail; 118426f3deacStedu 118526f3deacStedu if (attrnum == NTFS_A_INDX) { 118626f3deacStedu error = ntfs_procfixups(ntmp, NTFS_INDXMAGIC, 118726f3deacStedu rdbuf, rdsize); 118826f3deacStedu if (error) 118926f3deacStedu goto fail; 119026f3deacStedu } 119126f3deacStedu if (aoff == 0) 119226f3deacStedu aoff = (attrnum == NTFS_A_INDX) ? 119326f3deacStedu (0x18 + ((struct attr_indexalloc *) rdbuf)->ia_hdrsize) : 119426f3deacStedu sizeof(struct attr_indexroot); 119526f3deacStedu 119626f3deacStedu iep = (struct attr_indexentry *) (rdbuf + aoff); 119726f3deacStedu for (; !(iep->ie_flag & NTFS_IEFLAG_LAST) && (rdsize > aoff); 119826f3deacStedu aoff += iep->reclen, 119926f3deacStedu iep = (struct attr_indexentry *) (rdbuf + aoff)) 120026f3deacStedu { 120126f3deacStedu if (!ntfs_isnamepermitted(ntmp, iep)) continue; 120226f3deacStedu 120326f3deacStedu if (cnum >= num) { 120426f3deacStedu fp->f_lastdnum = cnum; 120526f3deacStedu fp->f_lastdoff = aoff; 120626f3deacStedu fp->f_lastdblnum = blnum; 120726f3deacStedu fp->f_lastdattr = attrnum; 120826f3deacStedu 120926f3deacStedu *riepp = iep; 121026f3deacStedu 121126f3deacStedu error = 0; 121226f3deacStedu goto fail; 121326f3deacStedu } 121426f3deacStedu cnum++; 121526f3deacStedu } 121626f3deacStedu 121726f3deacStedu if (iavap) { 121826f3deacStedu if (attrnum == NTFS_A_INDXROOT) 121926f3deacStedu blnum = 0; 122026f3deacStedu else 122126f3deacStedu blnum++; 122226f3deacStedu 122326f3deacStedu while (ntfs_cntob(blnum * cpbl) < iavap->va_datalen) { 12246978a3abSbrad if (bmp[blnum >> 3] & (1 << (blnum & 7))) 122526f3deacStedu break; 122626f3deacStedu blnum++; 122726f3deacStedu } 122826f3deacStedu 122926f3deacStedu attrnum = NTFS_A_INDX; 123026f3deacStedu aoff = 0; 123126f3deacStedu if (ntfs_cntob(blnum * cpbl) >= iavap->va_datalen) 123226f3deacStedu break; 123326f3deacStedu dprintf(("ntfs_ntreaddir: blnum: %d\n", (u_int32_t) blnum)); 123426f3deacStedu } 123526f3deacStedu } while (iavap); 123626f3deacStedu 123726f3deacStedu *riepp = NULL; 123826f3deacStedu fp->f_lastdnum = 0; 123926f3deacStedu 124026f3deacStedu fail: 124126f3deacStedu if (vap) 124226f3deacStedu ntfs_ntvattrrele(vap); 124326f3deacStedu if (bmvap) 124426f3deacStedu ntfs_ntvattrrele(bmvap); 124526f3deacStedu if (iavap) 124626f3deacStedu ntfs_ntvattrrele(iavap); 124726f3deacStedu if (bmp) 1248e8821f89Shshoexer free(bmp, M_TEMP); 124926f3deacStedu ntfs_ntput(ip, p); 12501ad3841aSjasper 125126f3deacStedu return (error); 125226f3deacStedu } 125326f3deacStedu 125426f3deacStedu /* 125526f3deacStedu * Convert NTFS times that are in 100 ns units and begins from 125626f3deacStedu * 1601 Jan 1 into unix times. 125726f3deacStedu */ 125826f3deacStedu struct timespec 1259*1cc0505dSjsing ntfs_nttimetounix(u_int64_t nt) 126026f3deacStedu { 126126f3deacStedu struct timespec t; 126226f3deacStedu 126326f3deacStedu /* WindowNT times are in 100 ns and from 1601 Jan 1 */ 126426f3deacStedu t.tv_nsec = (nt % (1000 * 1000 * 10)) * 100; 126526f3deacStedu t.tv_sec = nt / (1000 * 1000 * 10) - 126626f3deacStedu 369LL * 365LL * 24LL * 60LL * 60LL - 126726f3deacStedu 89LL * 1LL * 24LL * 60LL * 60LL; 126826f3deacStedu return (t); 126926f3deacStedu } 127026f3deacStedu 127126f3deacStedu /* 127226f3deacStedu * Get file sizes from corresponding attribute. 127326f3deacStedu * 127426f3deacStedu * ntnode under fnode should be locked. 127526f3deacStedu */ 127626f3deacStedu int 1277*1cc0505dSjsing ntfs_filesize(struct ntfsmount *ntmp, struct fnode *fp, u_int64_t *size, 127826f3deacStedu u_int64_t *bytes) 127926f3deacStedu { 128026f3deacStedu struct ntvattr *vap; 128126f3deacStedu struct ntnode *ip = FTONT(fp); 128226f3deacStedu u_int64_t sz, bn; 128326f3deacStedu int error; 128426f3deacStedu 128526f3deacStedu dprintf(("ntfs_filesize: ino: %d\n", ip->i_number)); 128626f3deacStedu 128726f3deacStedu error = ntfs_ntvattrget(ntmp, ip, 128826f3deacStedu fp->f_attrtype, fp->f_attrname, 0, &vap); 128926f3deacStedu if (error) 129026f3deacStedu return (error); 129126f3deacStedu 129226f3deacStedu bn = vap->va_allocated; 129326f3deacStedu sz = vap->va_datalen; 129426f3deacStedu 129526f3deacStedu dprintf(("ntfs_filesize: %d bytes (%d bytes allocated)\n", 129626f3deacStedu (u_int32_t) sz, (u_int32_t) bn)); 129726f3deacStedu 129826f3deacStedu if (size) 129926f3deacStedu *size = sz; 130026f3deacStedu if (bytes) 130126f3deacStedu *bytes = bn; 130226f3deacStedu 130326f3deacStedu ntfs_ntvattrrele(vap); 130426f3deacStedu 130526f3deacStedu return (0); 130626f3deacStedu } 130726f3deacStedu 130826f3deacStedu /* 1309835c1779Sbrad * This is one of the write routines. 131026f3deacStedu */ 131126f3deacStedu int 1312*1cc0505dSjsing ntfs_writeattr_plain(struct ntfsmount *ntmp, struct ntnode *ip, 1313*1cc0505dSjsing u_int32_t attrnum, char *attrname, off_t roff, size_t rsize, void *rdata, 1314*1cc0505dSjsing size_t *initp, struct uio *uio) 131526f3deacStedu { 131626f3deacStedu size_t init; 131726f3deacStedu int error = 0; 131826f3deacStedu off_t off = roff, left = rsize, towrite; 131926f3deacStedu caddr_t data = rdata; 132026f3deacStedu struct ntvattr *vap; 132126f3deacStedu *initp = 0; 132226f3deacStedu 132326f3deacStedu while (left) { 132426f3deacStedu error = ntfs_ntvattrget(ntmp, ip, attrnum, attrname, 132526f3deacStedu ntfs_btocn(off), &vap); 132626f3deacStedu if (error) 132726f3deacStedu return (error); 1328835c1779Sbrad towrite = MIN(left, ntfs_cntob(vap->va_vcnend + 1) - off); 132926f3deacStedu ddprintf(("ntfs_writeattr_plain: o: %d, s: %d (%d - %d)\n", 133026f3deacStedu (u_int32_t) off, (u_int32_t) towrite, 133126f3deacStedu (u_int32_t) vap->va_vcnstart, 133226f3deacStedu (u_int32_t) vap->va_vcnend)); 133326f3deacStedu error = ntfs_writentvattr_plain(ntmp, ip, vap, 133426f3deacStedu off - ntfs_cntob(vap->va_vcnstart), 133526f3deacStedu towrite, data, &init, uio); 133626f3deacStedu if (error) { 133726f3deacStedu dprintf(("ntfs_writeattr_plain: " \ 133826f3deacStedu "ntfs_writentvattr_plain failed: o: %d, s: %d\n", 133926f3deacStedu (u_int32_t) off, (u_int32_t) towrite)); 134026f3deacStedu dprintf(("ntfs_writeattr_plain: attrib: %d - %d\n", 134126f3deacStedu (u_int32_t) vap->va_vcnstart, 134226f3deacStedu (u_int32_t) vap->va_vcnend)); 134326f3deacStedu ntfs_ntvattrrele(vap); 134426f3deacStedu break; 134526f3deacStedu } 134626f3deacStedu ntfs_ntvattrrele(vap); 134726f3deacStedu left -= towrite; 134826f3deacStedu off += towrite; 134926f3deacStedu data = data + towrite; 135026f3deacStedu *initp += init; 135126f3deacStedu } 135226f3deacStedu 135326f3deacStedu return (error); 135426f3deacStedu } 135526f3deacStedu 135626f3deacStedu /* 1357835c1779Sbrad * This is one of the write routines. 135826f3deacStedu * 135926f3deacStedu * ntnode should be locked. 136026f3deacStedu */ 136126f3deacStedu int 1362*1cc0505dSjsing ntfs_writentvattr_plain(struct ntfsmount *ntmp, struct ntnode *ip, 1363*1cc0505dSjsing struct ntvattr *vap, off_t roff, size_t rsize, void *rdata, size_t *initp, 136426f3deacStedu struct uio *uio) 136526f3deacStedu { 136626f3deacStedu int error = 0; 136726f3deacStedu int off; 136826f3deacStedu int cnt; 136926f3deacStedu cn_t ccn, ccl, cn, left, cl; 137026f3deacStedu caddr_t data = rdata; 137126f3deacStedu struct buf *bp; 137226f3deacStedu size_t tocopy; 137326f3deacStedu 137426f3deacStedu *initp = 0; 137526f3deacStedu 137626f3deacStedu if ((vap->va_flag & NTFS_AF_INRUN) == 0) { 137726f3deacStedu dprintf(("ntfs_writevattr_plain: CAN'T WRITE RES. ATTRIBUTE\n")); 137826f3deacStedu return ENOTTY; 137926f3deacStedu } 138026f3deacStedu 138126f3deacStedu ddprintf(("ntfs_writentvattr_plain: data in run: %lu chains\n", 138226f3deacStedu vap->va_vruncnt)); 138326f3deacStedu 138426f3deacStedu off = roff; 138526f3deacStedu left = rsize; 138626f3deacStedu ccl = 0; 138726f3deacStedu ccn = 0; 138826f3deacStedu cnt = 0; 138926f3deacStedu for (; left && (cnt < vap->va_vruncnt); cnt++) { 139026f3deacStedu ccn = vap->va_vruncn[cnt]; 139126f3deacStedu ccl = vap->va_vruncl[cnt]; 139226f3deacStedu 139326f3deacStedu ddprintf(("ntfs_writentvattr_plain: " \ 139426f3deacStedu "left %d, cn: 0x%x, cl: %d, off: %d\n", \ 139526f3deacStedu (u_int32_t) left, (u_int32_t) ccn, \ 139626f3deacStedu (u_int32_t) ccl, (u_int32_t) off)); 139726f3deacStedu 139826f3deacStedu if (ntfs_cntob(ccl) < off) { 139926f3deacStedu off -= ntfs_cntob(ccl); 140026f3deacStedu cnt++; 140126f3deacStedu continue; 140226f3deacStedu } 140326f3deacStedu if (!ccn && ip->i_number != NTFS_BOOTINO) 140426f3deacStedu continue; /* XXX */ 140526f3deacStedu 140626f3deacStedu ccl -= ntfs_btocn(off); 140726f3deacStedu cn = ccn + ntfs_btocn(off); 140826f3deacStedu off = ntfs_btocnoff(off); 140926f3deacStedu 141026f3deacStedu while (left && ccl) { 1411835c1779Sbrad /* 1412835c1779Sbrad * Always read and write single clusters at a time - 1413835c1779Sbrad * we need to avoid requesting differently-sized 1414835c1779Sbrad * blocks at the same disk offsets to avoid 1415835c1779Sbrad * confusing the buffer cache. 1416835c1779Sbrad */ 1417835c1779Sbrad tocopy = MIN(left, ntfs_cntob(1) - off); 141826f3deacStedu cl = ntfs_btocl(tocopy + off); 1419835c1779Sbrad KASSERT(cl == 1 && tocopy <= ntfs_cntob(1)); 142026f3deacStedu ddprintf(("ntfs_writentvattr_plain: write: " \ 142126f3deacStedu "cn: 0x%x cl: %d, off: %d len: %d, left: %d\n", 142226f3deacStedu (u_int32_t) cn, (u_int32_t) cl, 142326f3deacStedu (u_int32_t) off, (u_int32_t) tocopy, 142426f3deacStedu (u_int32_t) left)); 142526f3deacStedu if ((off == 0) && (tocopy == ntfs_cntob(cl))) 142626f3deacStedu { 142726f3deacStedu bp = getblk(ntmp->ntm_devvp, ntfs_cntobn(cn), 142826f3deacStedu ntfs_cntob(cl), 0, 0); 142926f3deacStedu clrbuf(bp); 143026f3deacStedu } else { 143126f3deacStedu error = bread(ntmp->ntm_devvp, ntfs_cntobn(cn), 143293f62a9eStedu ntfs_cntob(cl), &bp); 143326f3deacStedu if (error) { 143426f3deacStedu brelse(bp); 143526f3deacStedu return (error); 143626f3deacStedu } 143726f3deacStedu } 1438fca26c8fSmiod if (uio) { 1439fca26c8fSmiod error = uiomove(bp->b_data + off, tocopy, uio); 1440fca26c8fSmiod if (error != 0) 1441fca26c8fSmiod break; 1442fca26c8fSmiod } else 144326f3deacStedu memcpy(bp->b_data + off, data, tocopy); 144426f3deacStedu bawrite(bp); 144526f3deacStedu data = data + tocopy; 144626f3deacStedu *initp += tocopy; 144726f3deacStedu off = 0; 144826f3deacStedu left -= tocopy; 144926f3deacStedu cn += cl; 145026f3deacStedu ccl -= cl; 145126f3deacStedu } 145226f3deacStedu } 145326f3deacStedu 1454fca26c8fSmiod if (left && error == 0) { 145526f3deacStedu printf("ntfs_writentvattr_plain: POSSIBLE RUN ERROR\n"); 145626f3deacStedu error = EINVAL; 145726f3deacStedu } 145826f3deacStedu 145926f3deacStedu return (error); 146026f3deacStedu } 146126f3deacStedu 146226f3deacStedu /* 1463835c1779Sbrad * This is one of the read routines. 146426f3deacStedu * 146526f3deacStedu * ntnode should be locked. 146626f3deacStedu */ 146726f3deacStedu int 1468*1cc0505dSjsing ntfs_readntvattr_plain(struct ntfsmount *ntmp, struct ntnode *ip, 1469*1cc0505dSjsing struct ntvattr *vap, off_t roff, size_t rsize, void *rdata, size_t *initp, 147026f3deacStedu struct uio *uio) 147126f3deacStedu { 147226f3deacStedu int error = 0; 147326f3deacStedu int off; 147426f3deacStedu 147526f3deacStedu *initp = 0; 147626f3deacStedu if (vap->va_flag & NTFS_AF_INRUN) { 147726f3deacStedu int cnt; 147826f3deacStedu cn_t ccn, ccl, cn, left, cl; 147926f3deacStedu caddr_t data = rdata; 148026f3deacStedu struct buf *bp; 148126f3deacStedu size_t tocopy; 148226f3deacStedu 148326f3deacStedu ddprintf(("ntfs_readntvattr_plain: data in run: %lu chains\n", 148426f3deacStedu vap->va_vruncnt)); 148526f3deacStedu 148626f3deacStedu off = roff; 148726f3deacStedu left = rsize; 148826f3deacStedu ccl = 0; 148926f3deacStedu ccn = 0; 149026f3deacStedu cnt = 0; 149126f3deacStedu while (left && (cnt < vap->va_vruncnt)) { 149226f3deacStedu ccn = vap->va_vruncn[cnt]; 149326f3deacStedu ccl = vap->va_vruncl[cnt]; 149426f3deacStedu 149526f3deacStedu ddprintf(("ntfs_readntvattr_plain: " \ 149626f3deacStedu "left %d, cn: 0x%x, cl: %d, off: %d\n", \ 149726f3deacStedu (u_int32_t) left, (u_int32_t) ccn, \ 149826f3deacStedu (u_int32_t) ccl, (u_int32_t) off)); 149926f3deacStedu 150026f3deacStedu if (ntfs_cntob(ccl) < off) { 150126f3deacStedu off -= ntfs_cntob(ccl); 150226f3deacStedu cnt++; 150326f3deacStedu continue; 150426f3deacStedu } 150526f3deacStedu if (ccn || ip->i_number == NTFS_BOOTINO) { 150626f3deacStedu ccl -= ntfs_btocn(off); 150726f3deacStedu cn = ccn + ntfs_btocn(off); 150826f3deacStedu off = ntfs_btocnoff(off); 150926f3deacStedu 151026f3deacStedu while (left && ccl) { 151126f3deacStedu /* 1512835c1779Sbrad * Always read single clusters at a 1513835c1779Sbrad * time - we need to avoid reading 1514835c1779Sbrad * differently-sized blocks at the 1515835c1779Sbrad * same disk offsets to avoid 1516835c1779Sbrad * confusing the buffer cache. 151726f3deacStedu */ 1518835c1779Sbrad tocopy = MIN(left, 1519835c1779Sbrad ntfs_cntob(1) - off); 1520835c1779Sbrad cl = ntfs_btocl(tocopy + off); 1521835c1779Sbrad KASSERT(cl == 1 && 1522835c1779Sbrad tocopy <= ntfs_cntob(1)); 152326f3deacStedu 152426f3deacStedu ddprintf(("ntfs_readntvattr_plain: " \ 152526f3deacStedu "read: cn: 0x%x cl: %d, " \ 152626f3deacStedu "off: %d len: %d, left: %d\n", 152726f3deacStedu (u_int32_t) cn, 152826f3deacStedu (u_int32_t) cl, 152926f3deacStedu (u_int32_t) off, 153026f3deacStedu (u_int32_t) tocopy, 153126f3deacStedu (u_int32_t) left)); 153226f3deacStedu error = bread(ntmp->ntm_devvp, 153326f3deacStedu ntfs_cntobn(cn), 153426f3deacStedu ntfs_cntob(cl), 153593f62a9eStedu &bp); 153626f3deacStedu if (error) { 153726f3deacStedu brelse(bp); 153826f3deacStedu return (error); 153926f3deacStedu } 154026f3deacStedu if (uio) { 1541fca26c8fSmiod error = uiomove(bp->b_data + off, 154226f3deacStedu tocopy, uio); 1543fca26c8fSmiod if (error != 0) 1544fca26c8fSmiod break; 154526f3deacStedu } else { 154626f3deacStedu memcpy(data, bp->b_data + off, 154726f3deacStedu tocopy); 154826f3deacStedu } 154926f3deacStedu brelse(bp); 155026f3deacStedu data = data + tocopy; 155126f3deacStedu *initp += tocopy; 155226f3deacStedu off = 0; 155326f3deacStedu left -= tocopy; 155426f3deacStedu cn += cl; 155526f3deacStedu ccl -= cl; 155626f3deacStedu } 155726f3deacStedu } else { 1558835c1779Sbrad tocopy = MIN(left, ntfs_cntob(ccl) - off); 155926f3deacStedu ddprintf(("ntfs_readntvattr_plain: " 156026f3deacStedu "hole: ccn: 0x%x ccl: %d, off: %d, " \ 156126f3deacStedu " len: %d, left: %d\n", 156226f3deacStedu (u_int32_t) ccn, (u_int32_t) ccl, 156326f3deacStedu (u_int32_t) off, (u_int32_t) tocopy, 156426f3deacStedu (u_int32_t) left)); 156526f3deacStedu left -= tocopy; 156626f3deacStedu off = 0; 156726f3deacStedu if (uio) { 156826f3deacStedu size_t remains = tocopy; 1569fca26c8fSmiod for(; remains; remains--) { 1570fca26c8fSmiod error = uiomove("", 1, uio); 1571fca26c8fSmiod if (error != 0) 1572fca26c8fSmiod break; 1573fca26c8fSmiod } 157426f3deacStedu } else 157526f3deacStedu bzero(data, tocopy); 157626f3deacStedu data = data + tocopy; 157726f3deacStedu } 157826f3deacStedu cnt++; 1579fca26c8fSmiod if (error != 0) 1580fca26c8fSmiod break; 158126f3deacStedu } 1582fca26c8fSmiod if (left && error == 0) { 158326f3deacStedu printf("ntfs_readntvattr_plain: POSSIBLE RUN ERROR\n"); 158426f3deacStedu error = E2BIG; 158526f3deacStedu } 158626f3deacStedu } else { 158726f3deacStedu ddprintf(("ntfs_readnvattr_plain: data is in mft record\n")); 158826f3deacStedu if (uio) 1589fca26c8fSmiod error = uiomove(vap->va_datap + roff, rsize, uio); 159026f3deacStedu else 159126f3deacStedu memcpy(rdata, vap->va_datap + roff, rsize); 159226f3deacStedu *initp += rsize; 159326f3deacStedu } 159426f3deacStedu 159526f3deacStedu return (error); 159626f3deacStedu } 159726f3deacStedu 159826f3deacStedu /* 159926f3deacStedu * This is one of read routines. 160026f3deacStedu */ 160126f3deacStedu int 1602*1cc0505dSjsing ntfs_readattr_plain(struct ntfsmount *ntmp, struct ntnode *ip, 1603*1cc0505dSjsing u_int32_t attrnum, char *attrname, off_t roff, size_t rsize, void *rdata, 1604*1cc0505dSjsing size_t *initp, struct uio *uio) 160526f3deacStedu { 160626f3deacStedu size_t init; 160726f3deacStedu int error = 0; 160826f3deacStedu off_t off = roff, left = rsize, toread; 160926f3deacStedu caddr_t data = rdata; 161026f3deacStedu struct ntvattr *vap; 161126f3deacStedu *initp = 0; 161226f3deacStedu 161326f3deacStedu while (left) { 161426f3deacStedu error = ntfs_ntvattrget(ntmp, ip, attrnum, attrname, 161526f3deacStedu ntfs_btocn(off), &vap); 161626f3deacStedu if (error) 161726f3deacStedu return (error); 1618835c1779Sbrad toread = MIN(left, ntfs_cntob(vap->va_vcnend + 1) - off); 161926f3deacStedu ddprintf(("ntfs_readattr_plain: o: %d, s: %d (%d - %d)\n", 162026f3deacStedu (u_int32_t) off, (u_int32_t) toread, 162126f3deacStedu (u_int32_t) vap->va_vcnstart, 162226f3deacStedu (u_int32_t) vap->va_vcnend)); 162326f3deacStedu error = ntfs_readntvattr_plain(ntmp, ip, vap, 162426f3deacStedu off - ntfs_cntob(vap->va_vcnstart), 162526f3deacStedu toread, data, &init, uio); 162626f3deacStedu if (error) { 162726f3deacStedu printf("ntfs_readattr_plain: " \ 162826f3deacStedu "ntfs_readntvattr_plain failed: o: %d, s: %d\n", 162926f3deacStedu (u_int32_t) off, (u_int32_t) toread); 163026f3deacStedu printf("ntfs_readattr_plain: attrib: %d - %d\n", 163126f3deacStedu (u_int32_t) vap->va_vcnstart, 163226f3deacStedu (u_int32_t) vap->va_vcnend); 163326f3deacStedu ntfs_ntvattrrele(vap); 163426f3deacStedu break; 163526f3deacStedu } 163626f3deacStedu ntfs_ntvattrrele(vap); 163726f3deacStedu left -= toread; 163826f3deacStedu off += toread; 163926f3deacStedu data = data + toread; 164026f3deacStedu *initp += init; 164126f3deacStedu } 164226f3deacStedu 164326f3deacStedu return (error); 164426f3deacStedu } 164526f3deacStedu 164626f3deacStedu /* 164726f3deacStedu * This is one of read routines. 164826f3deacStedu */ 164926f3deacStedu int 1650*1cc0505dSjsing ntfs_readattr(struct ntfsmount *ntmp, struct ntnode *ip, u_int32_t attrnum, 1651*1cc0505dSjsing char *attrname, off_t roff, size_t rsize, void *rdata, struct uio *uio) 165226f3deacStedu { 165326f3deacStedu int error = 0; 165426f3deacStedu struct ntvattr *vap; 165526f3deacStedu size_t init; 165626f3deacStedu 165726f3deacStedu ddprintf(("ntfs_readattr: reading %d: 0x%x, from %d size %d bytes\n", 165826f3deacStedu ip->i_number, attrnum, (u_int32_t) roff, (u_int32_t) rsize)); 165926f3deacStedu 166026f3deacStedu error = ntfs_ntvattrget(ntmp, ip, attrnum, attrname, 0, &vap); 166126f3deacStedu if (error) 166226f3deacStedu return (error); 166326f3deacStedu 166426f3deacStedu if ((roff > vap->va_datalen) || 166526f3deacStedu (roff + rsize > vap->va_datalen)) { 166626f3deacStedu printf("ntfs_readattr: offset too big: %ld (%ld) > %ld\n", 166726f3deacStedu (long int) roff, (long int) roff + rsize, 166826f3deacStedu (long int) vap->va_datalen); 166926f3deacStedu ntfs_ntvattrrele(vap); 167026f3deacStedu return (E2BIG); 167126f3deacStedu } 167226f3deacStedu if (vap->va_compression && vap->va_compressalg) { 167326f3deacStedu u_int8_t *cup; 167426f3deacStedu u_int8_t *uup; 167526f3deacStedu off_t off = roff, left = rsize, tocopy; 167626f3deacStedu caddr_t data = rdata; 167726f3deacStedu cn_t cn; 167826f3deacStedu 167926f3deacStedu ddprintf(("ntfs_ntreadattr: compression: %d\n", 168026f3deacStedu vap->va_compressalg)); 168126f3deacStedu 1682e8821f89Shshoexer cup = malloc(ntfs_cntob(NTFS_COMPUNIT_CL), M_NTFSDECOMP, 1683e8821f89Shshoexer M_WAITOK); 1684e8821f89Shshoexer uup = malloc(ntfs_cntob(NTFS_COMPUNIT_CL), M_NTFSDECOMP, 1685e8821f89Shshoexer M_WAITOK); 168626f3deacStedu 168726f3deacStedu cn = (ntfs_btocn(roff)) & (~(NTFS_COMPUNIT_CL - 1)); 168826f3deacStedu off = roff - ntfs_cntob(cn); 168926f3deacStedu 169026f3deacStedu while (left) { 169126f3deacStedu error = ntfs_readattr_plain(ntmp, ip, attrnum, 169226f3deacStedu attrname, ntfs_cntob(cn), 169326f3deacStedu ntfs_cntob(NTFS_COMPUNIT_CL), 169426f3deacStedu cup, &init, NULL); 169526f3deacStedu if (error) 169626f3deacStedu break; 169726f3deacStedu 1698835c1779Sbrad tocopy = MIN(left, ntfs_cntob(NTFS_COMPUNIT_CL) - off); 169926f3deacStedu 170026f3deacStedu if (init == ntfs_cntob(NTFS_COMPUNIT_CL)) { 170126f3deacStedu if (uio) 1702fca26c8fSmiod error = uiomove(cup + off, tocopy, uio); 170326f3deacStedu else 170426f3deacStedu memcpy(data, cup + off, tocopy); 170526f3deacStedu } else if (init == 0) { 170626f3deacStedu if (uio) { 170726f3deacStedu size_t remains = tocopy; 1708fca26c8fSmiod for(; remains; remains--) { 1709fca26c8fSmiod error = uiomove("", 1, uio); 1710fca26c8fSmiod if (error != 0) 1711fca26c8fSmiod break; 1712fca26c8fSmiod } 171326f3deacStedu } 171426f3deacStedu else 171526f3deacStedu bzero(data, tocopy); 171626f3deacStedu } else { 171726f3deacStedu error = ntfs_uncompunit(ntmp, uup, cup); 171826f3deacStedu if (error) 171926f3deacStedu break; 172026f3deacStedu if (uio) 1721fca26c8fSmiod error = uiomove(uup + off, tocopy, uio); 172226f3deacStedu else 172326f3deacStedu memcpy(data, uup + off, tocopy); 172426f3deacStedu } 1725fca26c8fSmiod if (error) 1726fca26c8fSmiod break; 172726f3deacStedu 172826f3deacStedu left -= tocopy; 172926f3deacStedu data = data + tocopy; 173026f3deacStedu off += tocopy - ntfs_cntob(NTFS_COMPUNIT_CL); 173126f3deacStedu cn += NTFS_COMPUNIT_CL; 173226f3deacStedu } 173326f3deacStedu 1734e8821f89Shshoexer free(uup, M_NTFSDECOMP); 1735e8821f89Shshoexer free(cup, M_NTFSDECOMP); 173626f3deacStedu } else 173726f3deacStedu error = ntfs_readattr_plain(ntmp, ip, attrnum, attrname, 173826f3deacStedu roff, rsize, rdata, &init, uio); 173926f3deacStedu ntfs_ntvattrrele(vap); 174026f3deacStedu return (error); 174126f3deacStedu } 174226f3deacStedu 174326f3deacStedu #if UNUSED_CODE 174426f3deacStedu int 1745*1cc0505dSjsing ntfs_parserun(cn_t *cn, cn_t *cl, u_int8_t *run, u_long len, u_long *off) 174626f3deacStedu { 174726f3deacStedu u_int8_t sz; 174826f3deacStedu int i; 174926f3deacStedu 175026f3deacStedu if (NULL == run) { 175126f3deacStedu printf("ntfs_parsetun: run == NULL\n"); 175226f3deacStedu return (EINVAL); 175326f3deacStedu } 175426f3deacStedu sz = run[(*off)++]; 175526f3deacStedu if (0 == sz) { 175626f3deacStedu printf("ntfs_parserun: trying to go out of run\n"); 175726f3deacStedu return (E2BIG); 175826f3deacStedu } 175926f3deacStedu *cl = 0; 176026f3deacStedu if ((sz & 0xF) > 8 || (*off) + (sz & 0xF) > len) { 176126f3deacStedu printf("ntfs_parserun: " \ 176226f3deacStedu "bad run: length too big: sz: 0x%02x (%ld < %ld + sz)\n", 176326f3deacStedu sz, len, *off); 176426f3deacStedu return (EINVAL); 176526f3deacStedu } 176626f3deacStedu for (i = 0; i < (sz & 0xF); i++) 176726f3deacStedu *cl += (u_int32_t) run[(*off)++] << (i << 3); 176826f3deacStedu 176926f3deacStedu sz >>= 4; 177026f3deacStedu if ((sz & 0xF) > 8 || (*off) + (sz & 0xF) > len) { 177126f3deacStedu printf("ntfs_parserun: " \ 177226f3deacStedu "bad run: length too big: sz: 0x%02x (%ld < %ld + sz)\n", 177326f3deacStedu sz, len, *off); 177426f3deacStedu return (EINVAL); 177526f3deacStedu } 177626f3deacStedu for (i = 0; i < (sz & 0xF); i++) 177726f3deacStedu *cn += (u_int32_t) run[(*off)++] << (i << 3); 177826f3deacStedu 177926f3deacStedu return (0); 178026f3deacStedu } 178126f3deacStedu #endif 178226f3deacStedu 178326f3deacStedu /* 178426f3deacStedu * Process fixup routine on given buffer. 178526f3deacStedu */ 178626f3deacStedu int 1787*1cc0505dSjsing ntfs_procfixups(struct ntfsmount *ntmp, u_int32_t magic, caddr_t buf, 178826f3deacStedu size_t len) 178926f3deacStedu { 179026f3deacStedu struct fixuphdr *fhp = (struct fixuphdr *) buf; 179126f3deacStedu int i; 179226f3deacStedu u_int16_t fixup; 179326f3deacStedu u_int16_t *fxp; 179426f3deacStedu u_int16_t *cfxp; 179526f3deacStedu 179626f3deacStedu if (fhp->fh_magic != magic) { 179726f3deacStedu printf("ntfs_procfixups: magic doesn't match: %08x != %08x\n", 179826f3deacStedu fhp->fh_magic, magic); 179926f3deacStedu return (EINVAL); 180026f3deacStedu } 180126f3deacStedu if ((fhp->fh_fnum - 1) * ntmp->ntm_bps != len) { 180226f3deacStedu printf("ntfs_procfixups: " \ 180326f3deacStedu "bad fixups number: %d for %ld bytes block\n", 180426f3deacStedu fhp->fh_fnum, (long)len); /* XXX printf kludge */ 180526f3deacStedu return (EINVAL); 180626f3deacStedu } 180726f3deacStedu if (fhp->fh_foff >= ntmp->ntm_spc * ntmp->ntm_mftrecsz * ntmp->ntm_bps) { 180826f3deacStedu printf("ntfs_procfixups: invalid offset: %x", fhp->fh_foff); 180926f3deacStedu return (EINVAL); 181026f3deacStedu } 181126f3deacStedu fxp = (u_int16_t *) (buf + fhp->fh_foff); 181226f3deacStedu cfxp = (u_int16_t *) (buf + ntmp->ntm_bps - 2); 181326f3deacStedu fixup = *fxp++; 181426f3deacStedu for (i = 1; i < fhp->fh_fnum; i++, fxp++) { 181526f3deacStedu if (*cfxp != fixup) { 181626f3deacStedu printf("ntfs_procfixups: fixup %d doesn't match\n", i); 181726f3deacStedu return (EINVAL); 181826f3deacStedu } 181926f3deacStedu *cfxp = *fxp; 1820835c1779Sbrad cfxp = (u_int16_t *)((caddr_t)cfxp + ntmp->ntm_bps); 182126f3deacStedu } 182226f3deacStedu return (0); 182326f3deacStedu } 182426f3deacStedu 182526f3deacStedu #if UNUSED_CODE 182626f3deacStedu int 1827*1cc0505dSjsing ntfs_runtocn(cn_t *cn, struct ntfsmount *ntmp, u_int8_t *run, u_long len, 182826f3deacStedu cn_t vcn) 182926f3deacStedu { 183026f3deacStedu cn_t ccn = 0; 183126f3deacStedu cn_t ccl = 0; 183226f3deacStedu u_long off = 0; 183326f3deacStedu int error = 0; 183426f3deacStedu 183526f3deacStedu #if NTFS_DEBUG 183626f3deacStedu int i; 1837846c180eSbrad printf("ntfs_runtocn: run: %p, %ld bytes, vcn:%ld\n", 183826f3deacStedu run, len, (u_long) vcn); 183926f3deacStedu printf("ntfs_runtocn: run: "); 184026f3deacStedu for (i = 0; i < len; i++) 184126f3deacStedu printf("0x%02x ", run[i]); 184226f3deacStedu printf("\n"); 184326f3deacStedu #endif 184426f3deacStedu 184526f3deacStedu if (NULL == run) { 184626f3deacStedu printf("ntfs_runtocn: run == NULL\n"); 184726f3deacStedu return (EINVAL); 184826f3deacStedu } 184926f3deacStedu do { 185026f3deacStedu if (run[off] == 0) { 185126f3deacStedu printf("ntfs_runtocn: vcn too big\n"); 185226f3deacStedu return (E2BIG); 185326f3deacStedu } 185426f3deacStedu vcn -= ccl; 185526f3deacStedu error = ntfs_parserun(&ccn, &ccl, run, len, &off); 185626f3deacStedu if (error) { 185726f3deacStedu printf("ntfs_runtocn: ntfs_parserun failed\n"); 185826f3deacStedu return (error); 185926f3deacStedu } 186026f3deacStedu } while (ccl <= vcn); 186126f3deacStedu *cn = ccn + vcn; 186226f3deacStedu return (0); 186326f3deacStedu } 186426f3deacStedu #endif 186526f3deacStedu 186626f3deacStedu /* 1867274476fcStedu * this initializes toupper table & dependant variables to be ready for 1868274476fcStedu * later work 1869274476fcStedu */ 1870274476fcStedu void 1871*1cc0505dSjsing ntfs_toupper_init(void) 1872274476fcStedu { 1873274476fcStedu ntfs_toupper_tab = (wchar *) NULL; 1874274476fcStedu ntfs_toupper_usecount = 0; 1875274476fcStedu } 1876274476fcStedu 1877274476fcStedu /* 1878274476fcStedu * if the ntfs_toupper_tab[] is filled already, just raise use count; 1879274476fcStedu * otherwise read the data from the filesystem we are currently mounting 188026f3deacStedu */ 188126f3deacStedu int 1882*1cc0505dSjsing ntfs_toupper_use(struct mount *mp, struct ntfsmount *ntmp, struct proc *p) 188326f3deacStedu { 188426f3deacStedu int error = 0; 188526f3deacStedu struct vnode *vp; 188626f3deacStedu 1887274476fcStedu /* get exclusive access */ 1888274476fcStedu rw_enter_write(&ntfs_toupper_lock); 1889274476fcStedu 189026f3deacStedu /* only read the translation data from a file if it hasn't been 189126f3deacStedu * read already */ 189226f3deacStedu if (ntfs_toupper_tab) 189326f3deacStedu goto out; 189426f3deacStedu 189526f3deacStedu /* 189626f3deacStedu * Read in Unicode lowercase -> uppercase translation file. 189726f3deacStedu * XXX for now, just the first 256 entries are used anyway, 189826f3deacStedu * so don't bother reading more 189926f3deacStedu */ 1900274476fcStedu ntfs_toupper_tab = malloc(256 * 256 * sizeof(wchar), M_NTFSRDATA, 1901274476fcStedu M_WAITOK); 190226f3deacStedu 190326f3deacStedu if ((error = VFS_VGET(mp, NTFS_UPCASEINO, &vp))) 190426f3deacStedu goto out; 1905274476fcStedu error = ntfs_readattr(ntmp, VTONT(vp), NTFS_A_DATA, NULL, 1906274476fcStedu 0, 256*256*sizeof(wchar), (char *) ntfs_toupper_tab, 1907274476fcStedu NULL); 190826f3deacStedu vput(vp); 190926f3deacStedu 1910274476fcStedu out: 1911274476fcStedu ntfs_toupper_usecount++; 1912274476fcStedu rw_exit_write(&ntfs_toupper_lock); 1913274476fcStedu return (error); 1914e7116e76Stedu } 1915e7116e76Stedu 1916274476fcStedu /* 1917274476fcStedu * lower the use count and if it reaches zero, free the memory 1918274476fcStedu * tied by toupper table 1919274476fcStedu */ 1920274476fcStedu void 1921*1cc0505dSjsing ntfs_toupper_unuse(struct proc *p) 1922274476fcStedu { 1923274476fcStedu /* get exclusive access */ 1924274476fcStedu rw_enter_write(&ntfs_toupper_lock); 1925e7116e76Stedu 1926274476fcStedu ntfs_toupper_usecount--; 1927274476fcStedu if (ntfs_toupper_usecount == 0) { 1928274476fcStedu free(ntfs_toupper_tab, M_NTFSRDATA); 1929274476fcStedu ntfs_toupper_tab = NULL; 1930274476fcStedu } 1931274476fcStedu #ifdef DIAGNOSTIC 1932274476fcStedu else if (ntfs_toupper_usecount < 0) { 1933274476fcStedu panic("ntfs_toupper_unuse(): use count negative: %d", 1934274476fcStedu ntfs_toupper_usecount); 1935274476fcStedu } 1936274476fcStedu #endif 1937274476fcStedu 1938274476fcStedu /* release the lock */ 1939274476fcStedu rw_exit_write(&ntfs_toupper_lock); 194026f3deacStedu } 1941