1*6f6d0059Sjsing /* $OpenBSD: ntfs_subr.c,v 1.27 2013/01/03 16:13:16 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 6690337d88Stedu static int ntfs_ntlookupattr(struct ntfsmount *, const char *, int, int *, char **); 6790337d88Stedu static int ntfs_findvattr(struct ntfsmount *, struct ntnode *, struct ntvattr **, struct ntvattr **, u_int32_t, const char *, size_t, cn_t); 6890337d88Stedu static int ntfs_uastricmp(struct ntfsmount *, const wchar *, size_t, const char *, size_t); 6990337d88Stedu static 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 8826f3deacStedu ntfs_ntvattrrele(vap) 8926f3deacStedu struct ntvattr * vap; 9026f3deacStedu { 9126f3deacStedu dprintf(("ntfs_ntvattrrele: ino: %d, type: 0x%x\n", 9226f3deacStedu vap->va_ip->i_number, vap->va_type)); 9326f3deacStedu 9426f3deacStedu ntfs_ntrele(vap->va_ip); 9526f3deacStedu 9626f3deacStedu return (0); 9726f3deacStedu } 9826f3deacStedu 9926f3deacStedu /* 10026f3deacStedu * find the attribute in the ntnode 10126f3deacStedu */ 10226f3deacStedu static int 10326f3deacStedu ntfs_findvattr(ntmp, ip, lvapp, vapp, type, name, namelen, vcn) 10426f3deacStedu struct ntfsmount *ntmp; 10526f3deacStedu struct ntnode *ip; 10626f3deacStedu struct ntvattr **lvapp, **vapp; 10726f3deacStedu u_int32_t type; 10826f3deacStedu const char *name; 10926f3deacStedu size_t namelen; 11026f3deacStedu cn_t vcn; 11126f3deacStedu { 11226f3deacStedu int error; 11326f3deacStedu struct ntvattr *vap; 11426f3deacStedu 11526f3deacStedu if((ip->i_flag & IN_LOADED) == 0) { 11626f3deacStedu dprintf(("ntfs_findvattr: node not loaded, ino: %d\n", 11726f3deacStedu ip->i_number)); 11826f3deacStedu error = ntfs_loadntnode(ntmp,ip); 11926f3deacStedu if (error) { 12026f3deacStedu printf("ntfs_findvattr: FAILED TO LOAD INO: %d\n", 12126f3deacStedu ip->i_number); 12226f3deacStedu return (error); 12326f3deacStedu } 12426f3deacStedu } 12526f3deacStedu 12626f3deacStedu *lvapp = NULL; 12726f3deacStedu *vapp = NULL; 1281573508eSmiod LIST_FOREACH(vap, &ip->i_valist, va_list) { 12926f3deacStedu ddprintf(("ntfs_findvattr: type: 0x%x, vcn: %d - %d\n", \ 13026f3deacStedu vap->va_type, (u_int32_t) vap->va_vcnstart, \ 13126f3deacStedu (u_int32_t) vap->va_vcnend)); 13226f3deacStedu if ((vap->va_type == type) && 13326f3deacStedu (vap->va_vcnstart <= vcn) && (vap->va_vcnend >= vcn) && 13426f3deacStedu (vap->va_namelen == namelen) && 13526f3deacStedu (strncmp(name, vap->va_name, namelen) == 0)) { 13626f3deacStedu *vapp = vap; 13726f3deacStedu ntfs_ntref(vap->va_ip); 13826f3deacStedu return (0); 13926f3deacStedu } 14026f3deacStedu if (vap->va_type == NTFS_A_ATTRLIST) 14126f3deacStedu *lvapp = vap; 14226f3deacStedu } 14326f3deacStedu 14426f3deacStedu return (-1); 14526f3deacStedu } 14626f3deacStedu 14726f3deacStedu /* 14826f3deacStedu * Search attribute specified in ntnode (load ntnode if necessary). 14926f3deacStedu * If not found but ATTR_A_ATTRLIST present, read it in and search through. 150cec6d865Smiod * VOP_VGET node needed, and lookup through its ntnode (load if necessary). 15126f3deacStedu * 15226f3deacStedu * ntnode should be locked 15326f3deacStedu */ 15426f3deacStedu int 15526f3deacStedu ntfs_ntvattrget( 15626f3deacStedu struct ntfsmount * ntmp, 15726f3deacStedu struct ntnode * ip, 15826f3deacStedu u_int32_t type, 15926f3deacStedu const char *name, 16026f3deacStedu cn_t vcn, 16126f3deacStedu struct ntvattr ** vapp) 16226f3deacStedu { 16326f3deacStedu struct ntvattr *lvap = NULL; 16426f3deacStedu struct attr_attrlist *aalp; 16526f3deacStedu struct attr_attrlist *nextaalp; 16626f3deacStedu struct vnode *newvp; 16726f3deacStedu struct ntnode *newip; 16826f3deacStedu caddr_t alpool; 16926f3deacStedu size_t namelen, len; 17026f3deacStedu int error; 17126f3deacStedu 17226f3deacStedu *vapp = NULL; 17326f3deacStedu 17426f3deacStedu if (name) { 17526f3deacStedu dprintf(("ntfs_ntvattrget: " \ 17626f3deacStedu "ino: %d, type: 0x%x, name: %s, vcn: %d\n", \ 17726f3deacStedu ip->i_number, type, name, (u_int32_t) vcn)); 17826f3deacStedu namelen = strlen(name); 17926f3deacStedu } else { 18026f3deacStedu dprintf(("ntfs_ntvattrget: " \ 18126f3deacStedu "ino: %d, type: 0x%x, vcn: %d\n", \ 18226f3deacStedu ip->i_number, type, (u_int32_t) vcn)); 18326f3deacStedu name = ""; 18426f3deacStedu namelen = 0; 18526f3deacStedu } 18626f3deacStedu 18726f3deacStedu error = ntfs_findvattr(ntmp, ip, &lvap, vapp, type, name, namelen, vcn); 18826f3deacStedu if (error >= 0) 18926f3deacStedu return (error); 19026f3deacStedu 19126f3deacStedu if (!lvap) { 19226f3deacStedu dprintf(("ntfs_ntvattrget: UNEXISTED ATTRIBUTE: " \ 19326f3deacStedu "ino: %d, type: 0x%x, name: %s, vcn: %d\n", \ 19426f3deacStedu ip->i_number, type, name, (u_int32_t) vcn)); 19526f3deacStedu return (ENOENT); 19626f3deacStedu } 19726f3deacStedu /* Scan $ATTRIBUTE_LIST for requested attribute */ 19826f3deacStedu len = lvap->va_datalen; 199c6c302e5Stedu alpool = malloc(len, M_TEMP, M_WAITOK); 20026f3deacStedu error = ntfs_readntvattr_plain(ntmp, ip, lvap, 0, len, alpool, &len, 20126f3deacStedu NULL); 20226f3deacStedu if (error) 20326f3deacStedu goto out; 20426f3deacStedu 20526f3deacStedu aalp = (struct attr_attrlist *) alpool; 20626f3deacStedu nextaalp = NULL; 20726f3deacStedu 20826f3deacStedu for(; len > 0; aalp = nextaalp) { 20926f3deacStedu dprintf(("ntfs_ntvattrget: " \ 21026f3deacStedu "attrlist: ino: %d, attr: 0x%x, vcn: %d\n", \ 21126f3deacStedu aalp->al_inumber, aalp->al_type, \ 21226f3deacStedu (u_int32_t) aalp->al_vcnstart)); 21326f3deacStedu 21426f3deacStedu if (len > aalp->reclen) { 21526f3deacStedu nextaalp = NTFS_NEXTREC(aalp, struct attr_attrlist *); 21626f3deacStedu } else { 21726f3deacStedu nextaalp = NULL; 21826f3deacStedu } 21926f3deacStedu len -= aalp->reclen; 22026f3deacStedu 22126f3deacStedu if (!NTFS_AALPCMP(aalp, type, name, namelen) || 22226f3deacStedu (nextaalp && (nextaalp->al_vcnstart <= vcn) && 22326f3deacStedu NTFS_AALPCMP(nextaalp, type, name, namelen))) 22426f3deacStedu continue; 22526f3deacStedu 22626f3deacStedu dprintf(("ntfs_ntvattrget: attribute in ino: %d\n", 22726f3deacStedu aalp->al_inumber)); 22826f3deacStedu 22926f3deacStedu /* this is not a main record, so we can't use just plain 23026f3deacStedu vget() */ 23126f3deacStedu error = ntfs_vgetex(ntmp->ntm_mountp, aalp->al_inumber, 23226f3deacStedu NTFS_A_DATA, NULL, LK_EXCLUSIVE, 23326f3deacStedu VG_EXT, curproc, &newvp); 23426f3deacStedu if (error) { 23526f3deacStedu printf("ntfs_ntvattrget: CAN'T VGET INO: %d\n", 23626f3deacStedu aalp->al_inumber); 23726f3deacStedu goto out; 23826f3deacStedu } 23926f3deacStedu newip = VTONT(newvp); 24026f3deacStedu /* XXX have to lock ntnode */ 24126f3deacStedu error = ntfs_findvattr(ntmp, newip, &lvap, vapp, 24226f3deacStedu type, name, namelen, vcn); 24326f3deacStedu vput(newvp); 24426f3deacStedu if (error == 0) 24526f3deacStedu goto out; 24626f3deacStedu printf("ntfs_ntvattrget: ATTRLIST ERROR.\n"); 24726f3deacStedu break; 24826f3deacStedu } 24926f3deacStedu error = ENOENT; 25026f3deacStedu 25126f3deacStedu dprintf(("ntfs_ntvattrget: UNEXISTED ATTRIBUTE: " \ 25226f3deacStedu "ino: %d, type: 0x%x, name: %.*s, vcn: %d\n", \ 25326f3deacStedu ip->i_number, type, (int) namelen, name, (u_int32_t) vcn)); 25426f3deacStedu out: 25526f3deacStedu free(alpool, M_TEMP); 25626f3deacStedu return (error); 25726f3deacStedu } 25826f3deacStedu 25926f3deacStedu /* 26026f3deacStedu * Read ntnode from disk, make ntvattr list. 26126f3deacStedu * 26226f3deacStedu * ntnode should be locked 26326f3deacStedu */ 26426f3deacStedu int 26526f3deacStedu ntfs_loadntnode( 26626f3deacStedu struct ntfsmount * ntmp, 26726f3deacStedu struct ntnode * ip) 26826f3deacStedu { 26926f3deacStedu struct filerec *mfrp; 270ce7d09aaSderaadt daddr64_t bn; 27126f3deacStedu int error,off; 27226f3deacStedu struct attr *ap; 27326f3deacStedu struct ntvattr *nvap; 27426f3deacStedu 27526f3deacStedu dprintf(("ntfs_loadntnode: loading ino: %d\n",ip->i_number)); 27626f3deacStedu 277c6c302e5Stedu mfrp = malloc(ntfs_bntob(ntmp->ntm_bpmftrec), M_TEMP, M_WAITOK); 27826f3deacStedu 27926f3deacStedu if (ip->i_number < NTFS_SYSNODESNUM) { 28026f3deacStedu struct buf *bp; 28126f3deacStedu 28226f3deacStedu dprintf(("ntfs_loadntnode: read system node\n")); 28326f3deacStedu 28426f3deacStedu bn = ntfs_cntobn(ntmp->ntm_mftcn) + 28526f3deacStedu ntmp->ntm_bpmftrec * ip->i_number; 28626f3deacStedu 28793f62a9eStedu error = bread(ntmp->ntm_devvp, bn, 28893f62a9eStedu ntfs_bntob(ntmp->ntm_bpmftrec), &bp); 28926f3deacStedu if (error) { 29026f3deacStedu printf("ntfs_loadntnode: BREAD FAILED\n"); 29126f3deacStedu brelse(bp); 29226f3deacStedu goto out; 29326f3deacStedu } 29426f3deacStedu memcpy(mfrp, bp->b_data, ntfs_bntob(ntmp->ntm_bpmftrec)); 295c6c302e5Stedu brelse(bp); 29626f3deacStedu } else { 29726f3deacStedu struct vnode *vp; 29826f3deacStedu 29926f3deacStedu vp = ntmp->ntm_sysvn[NTFS_MFTINO]; 30026f3deacStedu error = ntfs_readattr(ntmp, VTONT(vp), NTFS_A_DATA, NULL, 30126f3deacStedu ip->i_number * ntfs_bntob(ntmp->ntm_bpmftrec), 30226f3deacStedu ntfs_bntob(ntmp->ntm_bpmftrec), mfrp, NULL); 30326f3deacStedu if (error) { 30426f3deacStedu printf("ntfs_loadntnode: ntfs_readattr failed\n"); 30526f3deacStedu goto out; 30626f3deacStedu } 30726f3deacStedu } 30826f3deacStedu 30926f3deacStedu /* Check if magic and fixups are correct */ 31026f3deacStedu error = ntfs_procfixups(ntmp, NTFS_FILEMAGIC, (caddr_t)mfrp, 31126f3deacStedu ntfs_bntob(ntmp->ntm_bpmftrec)); 31226f3deacStedu if (error) { 31326f3deacStedu printf("ntfs_loadntnode: BAD MFT RECORD %d\n", 31426f3deacStedu (u_int32_t) ip->i_number); 31526f3deacStedu goto out; 31626f3deacStedu } 31726f3deacStedu 31826f3deacStedu dprintf(("ntfs_loadntnode: load attrs for ino: %d\n",ip->i_number)); 31926f3deacStedu off = mfrp->fr_attroff; 32026f3deacStedu ap = (struct attr *) ((caddr_t)mfrp + off); 32126f3deacStedu 32226f3deacStedu LIST_INIT(&ip->i_valist); 32326f3deacStedu 32426f3deacStedu while (ap->a_hdr.a_type != -1) { 32526f3deacStedu error = ntfs_attrtontvattr(ntmp, &nvap, ap); 32626f3deacStedu if (error) 32726f3deacStedu break; 32826f3deacStedu nvap->va_ip = ip; 32926f3deacStedu 33026f3deacStedu LIST_INSERT_HEAD(&ip->i_valist, nvap, va_list); 33126f3deacStedu 33226f3deacStedu off += ap->a_hdr.reclen; 33326f3deacStedu ap = (struct attr *) ((caddr_t)mfrp + off); 33426f3deacStedu } 33526f3deacStedu if (error) { 33626f3deacStedu printf("ntfs_loadntnode: failed to load attr ino: %d\n", 33726f3deacStedu ip->i_number); 33826f3deacStedu goto out; 33926f3deacStedu } 34026f3deacStedu 34126f3deacStedu ip->i_mainrec = mfrp->fr_mainrec; 34226f3deacStedu ip->i_nlink = mfrp->fr_nlink; 34326f3deacStedu ip->i_frflag = mfrp->fr_flags; 34426f3deacStedu 34526f3deacStedu ip->i_flag |= IN_LOADED; 34626f3deacStedu 34726f3deacStedu out: 34826f3deacStedu free(mfrp, M_TEMP); 34926f3deacStedu return (error); 35026f3deacStedu } 35126f3deacStedu 35226f3deacStedu /* 35326f3deacStedu * Routine locks ntnode and increase usecount, just opposite of 35426f3deacStedu * ntfs_ntput(). 35526f3deacStedu */ 35626f3deacStedu int 35726f3deacStedu ntfs_ntget( 35826f3deacStedu struct ntnode *ip, 35926f3deacStedu struct proc *p 36026f3deacStedu ) 36126f3deacStedu { 36226f3deacStedu dprintf(("ntfs_ntget: get ntnode %d: %p, usecount: %d\n", 36326f3deacStedu ip->i_number, ip, ip->i_usecount)); 36426f3deacStedu 36526f3deacStedu ip->i_usecount++; 3662752fedbSpedro 367c74ceabfSoga rw_enter_write(&ip->i_lock); 36826f3deacStedu 36926f3deacStedu return 0; 37026f3deacStedu } 37126f3deacStedu 37226f3deacStedu /* 37326f3deacStedu * Routine search ntnode in hash, if found: lock, inc usecount and return. 37426f3deacStedu * If not in hash allocate structure for ntnode, prefill it, lock, 37526f3deacStedu * inc count and return. 37626f3deacStedu * 37726f3deacStedu * ntnode returned locked 37826f3deacStedu */ 37926f3deacStedu int 38026f3deacStedu ntfs_ntlookup( 38126f3deacStedu struct ntfsmount * ntmp, 38226f3deacStedu ino_t ino, 38326f3deacStedu struct ntnode ** ipp, 38426f3deacStedu struct proc * p) 38526f3deacStedu { 38626f3deacStedu struct ntnode *ip; 38726f3deacStedu 38826f3deacStedu dprintf(("ntfs_ntlookup: looking for ntnode %d\n", ino)); 38926f3deacStedu 39026f3deacStedu do { 39126f3deacStedu if ((ip = ntfs_nthashlookup(ntmp->ntm_dev, ino)) != NULL) { 39226f3deacStedu ntfs_ntget(ip, p); 39326f3deacStedu dprintf(("ntfs_ntlookup: ntnode %d: %p, usecount: %d\n", 39426f3deacStedu ino, ip, ip->i_usecount)); 39526f3deacStedu *ipp = ip; 39626f3deacStedu return (0); 39726f3deacStedu } 398c74ceabfSoga } while (rw_enter(&ntfs_hashlock, RW_WRITE | RW_SLEEPFAIL)); 39926f3deacStedu 400c86f0003Skrw ip = malloc(sizeof(*ip), M_NTFSNTNODE, M_WAITOK | M_ZERO); 40126f3deacStedu ddprintf(("ntfs_ntlookup: allocating ntnode: %d: %p\n", ino, ip)); 40226f3deacStedu 40326f3deacStedu /* Generic initialization */ 40426f3deacStedu ip->i_devvp = ntmp->ntm_devvp; 40526f3deacStedu ip->i_dev = ntmp->ntm_dev; 40626f3deacStedu ip->i_number = ino; 40726f3deacStedu ip->i_mp = ntmp; 40826f3deacStedu 40926f3deacStedu LIST_INIT(&ip->i_fnlist); 410627b2c48Sthib vref(ip->i_devvp); 41126f3deacStedu 41226f3deacStedu /* init lock and lock the newborn ntnode */ 413c74ceabfSoga rw_init(&ip->i_lock, "ntnode"); 41426f3deacStedu ntfs_ntget(ip, p); 41526f3deacStedu 41626f3deacStedu ntfs_nthashins(ip); 41726f3deacStedu 418c74ceabfSoga rw_exit(&ntfs_hashlock); 41926f3deacStedu 42026f3deacStedu *ipp = ip; 42126f3deacStedu 42226f3deacStedu dprintf(("ntfs_ntlookup: ntnode %d: %p, usecount: %d\n", 42326f3deacStedu ino, ip, ip->i_usecount)); 42426f3deacStedu 42526f3deacStedu return (0); 42626f3deacStedu } 42726f3deacStedu 42826f3deacStedu /* 42926f3deacStedu * Decrement usecount of ntnode and unlock it, if usecount reach zero, 43026f3deacStedu * deallocate ntnode. 43126f3deacStedu * 43226f3deacStedu * ntnode should be locked on entry, and unlocked on return. 43326f3deacStedu */ 43426f3deacStedu void 43526f3deacStedu ntfs_ntput( 43626f3deacStedu struct ntnode *ip, 43726f3deacStedu struct proc *p 43826f3deacStedu ) 43926f3deacStedu { 44026f3deacStedu struct ntvattr *vap; 44126f3deacStedu 44226f3deacStedu dprintf(("ntfs_ntput: rele ntnode %d: %p, usecount: %d\n", 44326f3deacStedu ip->i_number, ip, ip->i_usecount)); 44426f3deacStedu 44526f3deacStedu ip->i_usecount--; 44626f3deacStedu 44726f3deacStedu #ifdef DIAGNOSTIC 44826f3deacStedu if (ip->i_usecount < 0) { 44926f3deacStedu panic("ntfs_ntput: ino: %d usecount: %d ", 45026f3deacStedu ip->i_number,ip->i_usecount); 45126f3deacStedu } 45226f3deacStedu #endif 45326f3deacStedu 4549b32ea3cSpat if (ip->i_usecount > 0) { 455c74ceabfSoga rw_exit_write(&ip->i_lock); 4569b32ea3cSpat return; 4579b32ea3cSpat } 45826f3deacStedu 4599b32ea3cSpat dprintf(("ntfs_ntput: deallocating ntnode: %d\n", ip->i_number)); 46026f3deacStedu 4619b32ea3cSpat if (LIST_FIRST(&ip->i_fnlist)) 46226f3deacStedu panic("ntfs_ntput: ntnode has fnodes"); 46326f3deacStedu 46426f3deacStedu ntfs_nthashrem(ip); 46526f3deacStedu 4669b32ea3cSpat while ((vap = LIST_FIRST(&ip->i_valist)) != NULL) { 46726f3deacStedu LIST_REMOVE(vap, va_list); 46826f3deacStedu ntfs_freentvattr(vap); 46926f3deacStedu } 4709b32ea3cSpat 4719b32ea3cSpat vrele(ip->i_devvp); 4722f33a180Skrw free(ip, M_NTFSNTNODE); 47326f3deacStedu } 47426f3deacStedu 47526f3deacStedu /* 47626f3deacStedu * increment usecount of ntnode 47726f3deacStedu */ 47826f3deacStedu void 47926f3deacStedu ntfs_ntref(ip) 48026f3deacStedu struct ntnode *ip; 48126f3deacStedu { 48226f3deacStedu ip->i_usecount++; 48326f3deacStedu 48426f3deacStedu dprintf(("ntfs_ntref: ino %d, usecount: %d\n", 48526f3deacStedu ip->i_number, ip->i_usecount)); 48626f3deacStedu 48726f3deacStedu } 48826f3deacStedu 48926f3deacStedu /* 49026f3deacStedu * Decrement usecount of ntnode. 49126f3deacStedu */ 49226f3deacStedu void 49326f3deacStedu ntfs_ntrele(ip) 49426f3deacStedu struct ntnode *ip; 49526f3deacStedu { 49626f3deacStedu dprintf(("ntfs_ntrele: rele ntnode %d: %p, usecount: %d\n", 49726f3deacStedu ip->i_number, ip, ip->i_usecount)); 49826f3deacStedu 49926f3deacStedu ip->i_usecount--; 50026f3deacStedu 50126f3deacStedu if (ip->i_usecount < 0) 50226f3deacStedu panic("ntfs_ntrele: ino: %d usecount: %d ", 50326f3deacStedu ip->i_number,ip->i_usecount); 50426f3deacStedu } 50526f3deacStedu 50626f3deacStedu /* 50726f3deacStedu * Deallocate all memory allocated for ntvattr 50826f3deacStedu */ 50926f3deacStedu void 51026f3deacStedu ntfs_freentvattr(vap) 51126f3deacStedu struct ntvattr * vap; 51226f3deacStedu { 51326f3deacStedu if (vap->va_flag & NTFS_AF_INRUN) { 51426f3deacStedu if (vap->va_vruncn) 51526f3deacStedu free(vap->va_vruncn, M_NTFSRUN); 51626f3deacStedu if (vap->va_vruncl) 51726f3deacStedu free(vap->va_vruncl, M_NTFSRUN); 51826f3deacStedu } else { 51926f3deacStedu if (vap->va_datap) 52026f3deacStedu free(vap->va_datap, M_NTFSRDATA); 52126f3deacStedu } 5222f33a180Skrw free(vap, M_NTFSNTVATTR); 52326f3deacStedu } 52426f3deacStedu 52526f3deacStedu /* 52626f3deacStedu * Convert disk image of attribute into ntvattr structure, 52726f3deacStedu * runs are expanded also. 52826f3deacStedu */ 52926f3deacStedu int 53026f3deacStedu ntfs_attrtontvattr( 53126f3deacStedu struct ntfsmount * ntmp, 53226f3deacStedu struct ntvattr ** rvapp, 53326f3deacStedu struct attr * rap) 53426f3deacStedu { 53526f3deacStedu int error, i; 53626f3deacStedu struct ntvattr *vap; 53726f3deacStedu 53826f3deacStedu error = 0; 53926f3deacStedu *rvapp = NULL; 54026f3deacStedu 541c86f0003Skrw vap = malloc(sizeof(*vap), M_NTFSNTVATTR, M_WAITOK | M_ZERO); 54226f3deacStedu vap->va_ip = NULL; 54326f3deacStedu vap->va_flag = rap->a_hdr.a_flag; 54426f3deacStedu vap->va_type = rap->a_hdr.a_type; 54526f3deacStedu vap->va_compression = rap->a_hdr.a_compression; 54626f3deacStedu vap->va_index = rap->a_hdr.a_index; 54726f3deacStedu 54826f3deacStedu ddprintf(("type: 0x%x, index: %d", vap->va_type, vap->va_index)); 54926f3deacStedu 55026f3deacStedu vap->va_namelen = rap->a_hdr.a_namelen; 55126f3deacStedu if (rap->a_hdr.a_namelen) { 55226f3deacStedu wchar *unp = (wchar *) ((caddr_t) rap + rap->a_hdr.a_nameoff); 55326f3deacStedu ddprintf((", name:[")); 55426f3deacStedu for (i = 0; i < vap->va_namelen; i++) { 55526f3deacStedu vap->va_name[i] = unp[i]; 55626f3deacStedu ddprintf(("%c", vap->va_name[i])); 55726f3deacStedu } 55826f3deacStedu ddprintf(("]")); 55926f3deacStedu } 56026f3deacStedu if (vap->va_flag & NTFS_AF_INRUN) { 56126f3deacStedu ddprintf((", nonres.")); 56226f3deacStedu vap->va_datalen = rap->a_nr.a_datalen; 56326f3deacStedu vap->va_allocated = rap->a_nr.a_allocated; 56426f3deacStedu vap->va_vcnstart = rap->a_nr.a_vcnstart; 56526f3deacStedu vap->va_vcnend = rap->a_nr.a_vcnend; 56626f3deacStedu vap->va_compressalg = rap->a_nr.a_compressalg; 56726f3deacStedu error = ntfs_runtovrun(&(vap->va_vruncn), &(vap->va_vruncl), 56826f3deacStedu &(vap->va_vruncnt), 56926f3deacStedu (caddr_t) rap + rap->a_nr.a_dataoff); 57026f3deacStedu } else { 57126f3deacStedu vap->va_compressalg = 0; 57226f3deacStedu ddprintf((", res.")); 57326f3deacStedu vap->va_datalen = rap->a_r.a_datalen; 57426f3deacStedu vap->va_allocated = rap->a_r.a_datalen; 57526f3deacStedu vap->va_vcnstart = 0; 57626f3deacStedu vap->va_vcnend = ntfs_btocn(vap->va_allocated); 577c6c302e5Stedu vap->va_datap = malloc(vap->va_datalen, M_NTFSRDATA, M_WAITOK); 57826f3deacStedu memcpy(vap->va_datap, (caddr_t) rap + rap->a_r.a_dataoff, 57926f3deacStedu rap->a_r.a_datalen); 58026f3deacStedu } 58126f3deacStedu ddprintf((", len: %d", vap->va_datalen)); 58226f3deacStedu 58326f3deacStedu if (error) 5842f33a180Skrw free(vap, M_NTFSNTVATTR); 58526f3deacStedu else 58626f3deacStedu *rvapp = vap; 58726f3deacStedu 58826f3deacStedu ddprintf(("\n")); 58926f3deacStedu 59026f3deacStedu return (error); 59126f3deacStedu } 59226f3deacStedu 59326f3deacStedu /* 59426f3deacStedu * Expand run into more utilizable and more memory eating format. 59526f3deacStedu */ 59626f3deacStedu int 59726f3deacStedu ntfs_runtovrun( 59826f3deacStedu cn_t ** rcnp, 59926f3deacStedu cn_t ** rclp, 60026f3deacStedu u_long * rcntp, 60126f3deacStedu u_int8_t * run) 60226f3deacStedu { 60326f3deacStedu u_int32_t off; 60426f3deacStedu u_int32_t sz, i; 60526f3deacStedu cn_t *cn; 60626f3deacStedu cn_t *cl; 60726f3deacStedu u_long cnt; 60826f3deacStedu cn_t prev; 60926f3deacStedu cn_t tmp; 61026f3deacStedu 61126f3deacStedu off = 0; 61226f3deacStedu cnt = 0; 61326f3deacStedu i = 0; 61426f3deacStedu while (run[off]) { 61526f3deacStedu off += (run[off] & 0xF) + ((run[off] >> 4) & 0xF) + 1; 61626f3deacStedu cnt++; 61726f3deacStedu } 618c6c302e5Stedu cn = malloc(cnt * sizeof(cn_t), M_NTFSRUN, M_WAITOK); 619c6c302e5Stedu cl = malloc(cnt * sizeof(cn_t), M_NTFSRUN, M_WAITOK); 62026f3deacStedu 62126f3deacStedu off = 0; 62226f3deacStedu cnt = 0; 62326f3deacStedu prev = 0; 62426f3deacStedu while (run[off]) { 62526f3deacStedu 62626f3deacStedu sz = run[off++]; 62726f3deacStedu cl[cnt] = 0; 62826f3deacStedu 62926f3deacStedu for (i = 0; i < (sz & 0xF); i++) 63026f3deacStedu cl[cnt] += (u_int32_t) run[off++] << (i << 3); 63126f3deacStedu 63226f3deacStedu sz >>= 4; 63326f3deacStedu if (run[off + sz - 1] & 0x80) { 63426f3deacStedu tmp = ((u_int64_t) - 1) << (sz << 3); 63526f3deacStedu for (i = 0; i < sz; i++) 63626f3deacStedu tmp |= (u_int64_t) run[off++] << (i << 3); 63726f3deacStedu } else { 63826f3deacStedu tmp = 0; 63926f3deacStedu for (i = 0; i < sz; i++) 64026f3deacStedu tmp |= (u_int64_t) run[off++] << (i << 3); 64126f3deacStedu } 64226f3deacStedu if (tmp) 64326f3deacStedu prev = cn[cnt] = prev + tmp; 64426f3deacStedu else 64526f3deacStedu cn[cnt] = tmp; 64626f3deacStedu 64726f3deacStedu cnt++; 64826f3deacStedu } 64926f3deacStedu *rcnp = cn; 65026f3deacStedu *rclp = cl; 65126f3deacStedu *rcntp = cnt; 65226f3deacStedu return (0); 65326f3deacStedu } 65426f3deacStedu 65526f3deacStedu /* 65626f3deacStedu * Compare unicode and ascii string case insens. 65726f3deacStedu */ 65826f3deacStedu static int 65926f3deacStedu ntfs_uastricmp(ntmp, ustr, ustrlen, astr, astrlen) 66026f3deacStedu struct ntfsmount *ntmp; 66126f3deacStedu const wchar *ustr; 66226f3deacStedu size_t ustrlen; 66326f3deacStedu const char *astr; 66426f3deacStedu size_t astrlen; 66526f3deacStedu { 66626f3deacStedu size_t i; 66726f3deacStedu int res; 66826f3deacStedu const char *astrend = astr + astrlen; 66926f3deacStedu 67026f3deacStedu for (i = 0; i < ustrlen && astr < astrend; i++) { 67126f3deacStedu res = (*ntmp->ntm_wcmp)(NTFS_TOUPPER(ustr[i]), 67226f3deacStedu NTFS_TOUPPER((*ntmp->ntm_wget)(&astr)) ); 67326f3deacStedu if (res) 67426f3deacStedu return res; 67526f3deacStedu } 67626f3deacStedu 67726f3deacStedu if (i == ustrlen && astr == astrend) 67826f3deacStedu return 0; 67926f3deacStedu else if (i == ustrlen) 68026f3deacStedu return -1; 68126f3deacStedu else 68226f3deacStedu return 1; 68326f3deacStedu } 68426f3deacStedu 68526f3deacStedu /* 68626f3deacStedu * Compare unicode and ascii string case sens. 68726f3deacStedu */ 68826f3deacStedu static int 68926f3deacStedu ntfs_uastrcmp(ntmp, ustr, ustrlen, astr, astrlen) 69026f3deacStedu struct ntfsmount *ntmp; 69126f3deacStedu const wchar *ustr; 69226f3deacStedu size_t ustrlen; 69326f3deacStedu const char *astr; 69426f3deacStedu size_t astrlen; 69526f3deacStedu { 69626f3deacStedu size_t i; 69726f3deacStedu int res; 69826f3deacStedu const char *astrend = astr + astrlen; 69926f3deacStedu 70026f3deacStedu for (i = 0; (i < ustrlen) && (astr < astrend); i++) { 70126f3deacStedu res = (*ntmp->ntm_wcmp)(ustr[i], (*ntmp->ntm_wget)(&astr)); 70226f3deacStedu if (res) 70326f3deacStedu return res; 70426f3deacStedu } 70526f3deacStedu 70626f3deacStedu if (i == ustrlen && astr == astrend) 70726f3deacStedu return 0; 70826f3deacStedu else if (i == ustrlen) 70926f3deacStedu return -1; 71026f3deacStedu else 71126f3deacStedu return 1; 71226f3deacStedu } 71326f3deacStedu 71426f3deacStedu /* 71526f3deacStedu * Search fnode in ntnode, if not found allocate and preinitialize. 71626f3deacStedu * 71726f3deacStedu * ntnode should be locked on entry. 71826f3deacStedu */ 71926f3deacStedu int 72026f3deacStedu ntfs_fget( 72126f3deacStedu struct ntfsmount *ntmp, 72226f3deacStedu struct ntnode *ip, 72326f3deacStedu int attrtype, 72426f3deacStedu char *attrname, 72526f3deacStedu struct fnode **fpp) 72626f3deacStedu { 72726f3deacStedu struct fnode *fp; 72826f3deacStedu 72926f3deacStedu dprintf(("ntfs_fget: ino: %d, attrtype: 0x%x, attrname: %s\n", 73026f3deacStedu ip->i_number,attrtype, attrname?attrname:"")); 73126f3deacStedu *fpp = NULL; 7321573508eSmiod LIST_FOREACH(fp, &ip->i_fnlist, f_fnlist) { 73326f3deacStedu dprintf(("ntfs_fget: fnode: attrtype: %d, attrname: %s\n", 73426f3deacStedu fp->f_attrtype, fp->f_attrname?fp->f_attrname:"")); 73526f3deacStedu 73626f3deacStedu if ((attrtype == fp->f_attrtype) && 73726f3deacStedu ((!attrname && !fp->f_attrname) || 73826f3deacStedu (attrname && fp->f_attrname && 73926f3deacStedu !strcmp(attrname,fp->f_attrname)))){ 74026f3deacStedu dprintf(("ntfs_fget: found existed: %p\n",fp)); 74126f3deacStedu *fpp = fp; 74226f3deacStedu } 74326f3deacStedu } 74426f3deacStedu 74526f3deacStedu if (*fpp) 74626f3deacStedu return (0); 74726f3deacStedu 748c86f0003Skrw fp = malloc(sizeof(*fp), M_NTFSFNODE, M_WAITOK | M_ZERO); 74926f3deacStedu dprintf(("ntfs_fget: allocating fnode: %p\n",fp)); 75026f3deacStedu 75126f3deacStedu fp->f_ip = ip; 75226f3deacStedu fp->f_attrname = attrname; 75326f3deacStedu if (fp->f_attrname) fp->f_flag |= FN_AATTRNAME; 75426f3deacStedu fp->f_attrtype = attrtype; 75526f3deacStedu 75626f3deacStedu ntfs_ntref(ip); 75726f3deacStedu 75826f3deacStedu LIST_INSERT_HEAD(&ip->i_fnlist, fp, f_fnlist); 75926f3deacStedu 76026f3deacStedu *fpp = fp; 76126f3deacStedu 76226f3deacStedu return (0); 76326f3deacStedu } 76426f3deacStedu 76526f3deacStedu /* 76626f3deacStedu * Deallocate fnode, remove it from ntnode's fnode list. 76726f3deacStedu * 76826f3deacStedu * ntnode should be locked. 76926f3deacStedu */ 77026f3deacStedu void 77126f3deacStedu ntfs_frele( 77226f3deacStedu struct fnode *fp) 77326f3deacStedu { 77426f3deacStedu struct ntnode *ip = FTONT(fp); 77526f3deacStedu 77626f3deacStedu dprintf(("ntfs_frele: fnode: %p for %d: %p\n", fp, ip->i_number, ip)); 77726f3deacStedu 77826f3deacStedu dprintf(("ntfs_frele: deallocating fnode\n")); 77926f3deacStedu LIST_REMOVE(fp,f_fnlist); 78026f3deacStedu if (fp->f_flag & FN_AATTRNAME) 781e8821f89Shshoexer free(fp->f_attrname, M_TEMP); 78226f3deacStedu if (fp->f_dirblbuf) 783e8821f89Shshoexer free(fp->f_dirblbuf, M_NTFSDIR); 7842f33a180Skrw free(fp, M_NTFSFNODE); 78526f3deacStedu ntfs_ntrele(ip); 78626f3deacStedu } 78726f3deacStedu 78826f3deacStedu /* 78926f3deacStedu * Lookup attribute name in format: [[:$ATTR_TYPE]:$ATTR_NAME], 79026f3deacStedu * $ATTR_TYPE is searched in attrdefs read from $AttrDefs. 79126f3deacStedu * If $ATTR_TYPE not specified, ATTR_A_DATA assumed. 79226f3deacStedu */ 79326f3deacStedu static int 79426f3deacStedu ntfs_ntlookupattr( 79526f3deacStedu struct ntfsmount * ntmp, 79626f3deacStedu const char * name, 79726f3deacStedu int namelen, 79826f3deacStedu int *attrtype, 79926f3deacStedu char **attrname) 80026f3deacStedu { 80126f3deacStedu const char *sys; 80226f3deacStedu size_t syslen, i; 80326f3deacStedu struct ntvattrdef *adp; 80426f3deacStedu 80526f3deacStedu if (namelen == 0) 80626f3deacStedu return (0); 80726f3deacStedu 80826f3deacStedu if (name[0] == '$') { 80926f3deacStedu sys = name; 81026f3deacStedu for (syslen = 0; syslen < namelen; syslen++) { 81126f3deacStedu if(sys[syslen] == ':') { 81226f3deacStedu name++; 81326f3deacStedu namelen--; 81426f3deacStedu break; 81526f3deacStedu } 81626f3deacStedu } 81726f3deacStedu name += syslen; 81826f3deacStedu namelen -= syslen; 81926f3deacStedu 82026f3deacStedu adp = ntmp->ntm_ad; 82126f3deacStedu for (i = 0; i < ntmp->ntm_adnum; i++, adp++){ 82226f3deacStedu if (syslen != adp->ad_namelen || 82326f3deacStedu strncmp(sys, adp->ad_name, syslen) != 0) 82426f3deacStedu continue; 82526f3deacStedu 82626f3deacStedu *attrtype = adp->ad_type; 82726f3deacStedu goto out; 82826f3deacStedu } 82926f3deacStedu return (ENOENT); 83026f3deacStedu } 83126f3deacStedu 83226f3deacStedu out: 83326f3deacStedu if (namelen) { 834c6c302e5Stedu *attrname = malloc(namelen + 1, M_TEMP, M_WAITOK); 835c6c302e5Stedu memcpy(*attrname, name, namelen); 83626f3deacStedu (*attrname)[namelen] = '\0'; 83726f3deacStedu *attrtype = NTFS_A_DATA; 83826f3deacStedu } 83926f3deacStedu 84026f3deacStedu return (0); 84126f3deacStedu } 84226f3deacStedu 84326f3deacStedu /* 84426f3deacStedu * Lookup specified node for filename, matching cnp, 84526f3deacStedu * return fnode filled. 84626f3deacStedu */ 84726f3deacStedu int 84826f3deacStedu ntfs_ntlookupfile( 84926f3deacStedu struct ntfsmount * ntmp, 85026f3deacStedu struct vnode * vp, 85126f3deacStedu struct componentname * cnp, 85226f3deacStedu struct vnode ** vpp, 85326f3deacStedu struct proc *p) 85426f3deacStedu { 85526f3deacStedu struct fnode *fp = VTOF(vp); 85626f3deacStedu struct ntnode *ip = FTONT(fp); 857*6f6d0059Sjsing struct ntvattr *vap = NULL; /* Root attribute */ 85826f3deacStedu cn_t cn = 0; /* VCN in current attribute */ 859*6f6d0059Sjsing caddr_t rdbuf = NULL; /* Buffer to read directory's blocks */ 86026f3deacStedu u_int32_t blsize; 86126f3deacStedu u_int32_t rdsize; /* Length of data to read from current block */ 86226f3deacStedu struct attr_indexentry *iep; 86326f3deacStedu int error, res, anamelen, fnamelen; 86426f3deacStedu const char *fname,*aname; 86526f3deacStedu u_int32_t aoff; 86626f3deacStedu int attrtype = NTFS_A_DATA; 86726f3deacStedu char *attrname = NULL; 86826f3deacStedu struct fnode *nfp; 86926f3deacStedu struct vnode *nvp; 87026f3deacStedu enum vtype f_type; 87126f3deacStedu int fullscan = 0; 87226f3deacStedu struct ntfs_lookup_ctx *lookup_ctx = NULL, *tctx; 87326f3deacStedu 87426f3deacStedu error = ntfs_ntget(ip, p); 87526f3deacStedu if (error) 87626f3deacStedu return (error); 87726f3deacStedu 87826f3deacStedu error = ntfs_ntvattrget(ntmp, ip, NTFS_A_INDXROOT, "$I30", 0, &vap); 879*6f6d0059Sjsing if (error || (vap->va_flag & NTFS_AF_INRUN)) { 880*6f6d0059Sjsing error = ENOTDIR; 881*6f6d0059Sjsing goto fail; 882*6f6d0059Sjsing } 88326f3deacStedu 88426f3deacStedu /* 88526f3deacStedu * Divide file name into: foofilefoofilefoofile[:attrspec] 88626f3deacStedu * Store like this: fname:fnamelen [aname:anamelen] 88726f3deacStedu */ 88826f3deacStedu fname = cnp->cn_nameptr; 88926f3deacStedu aname = NULL; 89026f3deacStedu anamelen = 0; 89126f3deacStedu for (fnamelen = 0; fnamelen < cnp->cn_namelen; fnamelen++) 89226f3deacStedu if(fname[fnamelen] == ':') { 89326f3deacStedu aname = fname + fnamelen + 1; 89426f3deacStedu anamelen = cnp->cn_namelen - fnamelen - 1; 89526f3deacStedu dprintf(("ntfs_ntlookupfile: %s (%d), attr: %s (%d)\n", 89626f3deacStedu fname, fnamelen, aname, anamelen)); 89726f3deacStedu break; 89826f3deacStedu } 89926f3deacStedu 90026f3deacStedu blsize = vap->va_a_iroot->ir_size; 90126f3deacStedu dprintf(("ntfs_ntlookupfile: blksz: %d\n", blsize)); 90226f3deacStedu 903c6c302e5Stedu rdbuf = malloc(blsize, M_TEMP, M_WAITOK); 90426f3deacStedu 90526f3deacStedu loop: 90626f3deacStedu rdsize = vap->va_datalen; 90726f3deacStedu dprintf(("ntfs_ntlookupfile: rdsz: %d\n", rdsize)); 90826f3deacStedu 90926f3deacStedu error = ntfs_readattr(ntmp, ip, NTFS_A_INDXROOT, "$I30", 91026f3deacStedu 0, rdsize, rdbuf, NULL); 91126f3deacStedu if (error) 91226f3deacStedu goto fail; 91326f3deacStedu 91426f3deacStedu aoff = sizeof(struct attr_indexroot); 91526f3deacStedu 91626f3deacStedu do { 91726f3deacStedu iep = (struct attr_indexentry *) (rdbuf + aoff); 91826f3deacStedu 91926f3deacStedu for (; !(iep->ie_flag & NTFS_IEFLAG_LAST) && (rdsize > aoff); 92026f3deacStedu aoff += iep->reclen, 92126f3deacStedu iep = (struct attr_indexentry *) (rdbuf + aoff)) 92226f3deacStedu { 92326f3deacStedu ddprintf(("scan: %d, %d\n", 92426f3deacStedu (u_int32_t) iep->ie_number, 92526f3deacStedu (u_int32_t) iep->ie_fnametype)); 92626f3deacStedu 92726f3deacStedu /* check the name - the case-insensitive check 92826f3deacStedu * has to come first, to break from this for loop 92926f3deacStedu * if needed, so we can dive correctly */ 93026f3deacStedu res = ntfs_uastricmp(ntmp, iep->ie_fname, 93126f3deacStedu iep->ie_fnamelen, fname, fnamelen); 93226f3deacStedu if (!fullscan) { 93326f3deacStedu if (res > 0) break; 93426f3deacStedu if (res < 0) continue; 93526f3deacStedu } 93626f3deacStedu 93726f3deacStedu if (iep->ie_fnametype == 0 || 93826f3deacStedu !(ntmp->ntm_flag & NTFS_MFLAG_CASEINS)) 93926f3deacStedu { 94026f3deacStedu res = ntfs_uastrcmp(ntmp, iep->ie_fname, 94126f3deacStedu iep->ie_fnamelen, fname, fnamelen); 94226f3deacStedu if (res != 0 && !fullscan) continue; 94326f3deacStedu } 94426f3deacStedu 94526f3deacStedu /* if we perform full scan, the file does not match 94626f3deacStedu * and this is subnode, dive */ 94726f3deacStedu if (fullscan && res != 0) { 94826f3deacStedu if (iep->ie_flag & NTFS_IEFLAG_SUBNODE) { 949e8821f89Shshoexer tctx = malloc(sizeof(struct ntfs_lookup_ctx), 95026f3deacStedu M_TEMP, M_WAITOK); 95126f3deacStedu tctx->aoff = aoff + iep->reclen; 95226f3deacStedu tctx->rdsize = rdsize; 95326f3deacStedu tctx->cn = cn; 95426f3deacStedu tctx->prev = lookup_ctx; 95526f3deacStedu lookup_ctx = tctx; 95626f3deacStedu break; 95726f3deacStedu } else 95826f3deacStedu continue; 95926f3deacStedu } 96026f3deacStedu 96126f3deacStedu if (aname) { 96226f3deacStedu error = ntfs_ntlookupattr(ntmp, 96326f3deacStedu aname, anamelen, 96426f3deacStedu &attrtype, &attrname); 96526f3deacStedu if (error) 96626f3deacStedu goto fail; 96726f3deacStedu } 96826f3deacStedu 96926f3deacStedu /* Check if we've found ourselves */ 97026f3deacStedu if ((iep->ie_number == ip->i_number) && 97126f3deacStedu (attrtype == fp->f_attrtype) && 97226f3deacStedu ((!attrname && !fp->f_attrname) || 97326f3deacStedu (attrname && fp->f_attrname && 97426f3deacStedu !strcmp(attrname, fp->f_attrname)))) 97526f3deacStedu { 976627b2c48Sthib vref(vp); 97726f3deacStedu *vpp = vp; 97826f3deacStedu error = 0; 97926f3deacStedu goto fail; 98026f3deacStedu } 98126f3deacStedu 98226f3deacStedu /* free the buffer returned by ntfs_ntlookupattr() */ 98326f3deacStedu if (attrname) { 984e8821f89Shshoexer free(attrname, M_TEMP); 98526f3deacStedu attrname = NULL; 98626f3deacStedu } 98726f3deacStedu 98826f3deacStedu /* vget node, but don't load it */ 98926f3deacStedu error = ntfs_vgetex(ntmp->ntm_mountp, 99026f3deacStedu iep->ie_number, attrtype, attrname, 99126f3deacStedu LK_EXCLUSIVE, VG_DONTLOADIN | VG_DONTVALIDFN, 99226f3deacStedu curproc, &nvp); 99326f3deacStedu if (error) 99426f3deacStedu goto fail; 99526f3deacStedu 99626f3deacStedu nfp = VTOF(nvp); 99726f3deacStedu 99826f3deacStedu if (nfp->f_flag & FN_VALID) { 99926f3deacStedu *vpp = nvp; 100026f3deacStedu goto fail; 100126f3deacStedu } 100226f3deacStedu 100326f3deacStedu nfp->f_fflag = iep->ie_fflag; 100426f3deacStedu nfp->f_pnumber = iep->ie_fpnumber; 100526f3deacStedu nfp->f_times = iep->ie_ftimes; 100626f3deacStedu 100726f3deacStedu if((nfp->f_fflag & NTFS_FFLAG_DIR) && 100826f3deacStedu (nfp->f_attrtype == NTFS_A_DATA) && 100926f3deacStedu (nfp->f_attrname == NULL)) 101026f3deacStedu f_type = VDIR; 101126f3deacStedu else 101226f3deacStedu f_type = VREG; 101326f3deacStedu 101426f3deacStedu nvp->v_type = f_type; 101526f3deacStedu 101626f3deacStedu if ((nfp->f_attrtype == NTFS_A_DATA) && 101726f3deacStedu (nfp->f_attrname == NULL)) 101826f3deacStedu { 101926f3deacStedu /* Opening default attribute */ 102026f3deacStedu nfp->f_size = iep->ie_fsize; 102126f3deacStedu nfp->f_allocated = iep->ie_fallocated; 102226f3deacStedu nfp->f_flag |= FN_PRELOADED; 102326f3deacStedu } else { 102426f3deacStedu error = ntfs_filesize(ntmp, nfp, 102526f3deacStedu &nfp->f_size, &nfp->f_allocated); 102626f3deacStedu if (error) { 102726f3deacStedu vput(nvp); 102826f3deacStedu goto fail; 102926f3deacStedu } 103026f3deacStedu } 103126f3deacStedu 103226f3deacStedu nfp->f_flag &= ~FN_VALID; 103326f3deacStedu *vpp = nvp; 103426f3deacStedu goto fail; 103526f3deacStedu } 103626f3deacStedu 103726f3deacStedu /* Dive if possible */ 103826f3deacStedu if (iep->ie_flag & NTFS_IEFLAG_SUBNODE) { 103926f3deacStedu dprintf(("ntfs_ntlookupfile: diving\n")); 104026f3deacStedu 104126f3deacStedu cn = *(cn_t *) (rdbuf + aoff + 104226f3deacStedu iep->reclen - sizeof(cn_t)); 104326f3deacStedu rdsize = blsize; 104426f3deacStedu 104526f3deacStedu error = ntfs_readattr(ntmp, ip, NTFS_A_INDX, "$I30", 104626f3deacStedu ntfs_cntob(cn), rdsize, rdbuf, NULL); 104726f3deacStedu if (error) 104826f3deacStedu goto fail; 104926f3deacStedu 105026f3deacStedu error = ntfs_procfixups(ntmp, NTFS_INDXMAGIC, 105126f3deacStedu rdbuf, rdsize); 105226f3deacStedu if (error) 105326f3deacStedu goto fail; 105426f3deacStedu 105526f3deacStedu aoff = (((struct attr_indexalloc *) rdbuf)->ia_hdrsize + 105626f3deacStedu 0x18); 105726f3deacStedu } else if (fullscan && lookup_ctx) { 105826f3deacStedu cn = lookup_ctx->cn; 105926f3deacStedu aoff = lookup_ctx->aoff; 106026f3deacStedu rdsize = lookup_ctx->rdsize; 106126f3deacStedu 106226f3deacStedu error = ntfs_readattr(ntmp, ip, 106326f3deacStedu (cn == 0) ? NTFS_A_INDXROOT : NTFS_A_INDX, 106426f3deacStedu "$I30", ntfs_cntob(cn), rdsize, rdbuf, NULL); 106526f3deacStedu if (error) 106626f3deacStedu goto fail; 106726f3deacStedu 106826f3deacStedu if (cn != 0) { 106926f3deacStedu error = ntfs_procfixups(ntmp, NTFS_INDXMAGIC, 107026f3deacStedu rdbuf, rdsize); 107126f3deacStedu if (error) 107226f3deacStedu goto fail; 107326f3deacStedu } 107426f3deacStedu 107526f3deacStedu tctx = lookup_ctx; 107626f3deacStedu lookup_ctx = lookup_ctx->prev; 1077e8821f89Shshoexer free(tctx, M_TEMP); 107826f3deacStedu } else { 107926f3deacStedu dprintf(("ntfs_ntlookupfile: nowhere to dive :-(\n")); 108026f3deacStedu error = ENOENT; 108126f3deacStedu break; 108226f3deacStedu } 108326f3deacStedu } while (1); 108426f3deacStedu 108526f3deacStedu /* perform full scan if no entry was found */ 108626f3deacStedu if (!fullscan && error == ENOENT) { 108726f3deacStedu fullscan = 1; 108826f3deacStedu cn = 0; /* need zero, used by lookup_ctx */ 108926f3deacStedu 109026f3deacStedu ddprintf(("ntfs_ntlookupfile: fullscan performed for: %.*s\n", 109126f3deacStedu (int) fnamelen, fname)); 109226f3deacStedu goto loop; 109326f3deacStedu } 109426f3deacStedu 109526f3deacStedu dprintf(("finish\n")); 109626f3deacStedu 109726f3deacStedu fail: 1098*6f6d0059Sjsing if (vap) 1099*6f6d0059Sjsing ntfs_ntvattrrele(vap); 1100*6f6d0059Sjsing if (rdbuf) 1101*6f6d0059Sjsing free(rdbuf, M_TEMP); 110226f3deacStedu if (attrname) 1103e8821f89Shshoexer free(attrname, M_TEMP); 110426f3deacStedu if (lookup_ctx) { 110526f3deacStedu while(lookup_ctx) { 110626f3deacStedu tctx = lookup_ctx; 110726f3deacStedu lookup_ctx = lookup_ctx->prev; 1108e8821f89Shshoexer free(tctx, M_TEMP); 110926f3deacStedu } 111026f3deacStedu } 111126f3deacStedu ntfs_ntput(ip, p); 111226f3deacStedu return (error); 111326f3deacStedu } 111426f3deacStedu 111526f3deacStedu /* 111626f3deacStedu * Check if name type is permitted to show. 111726f3deacStedu */ 111826f3deacStedu int 111926f3deacStedu ntfs_isnamepermitted( 112026f3deacStedu struct ntfsmount * ntmp, 112126f3deacStedu struct attr_indexentry * iep) 112226f3deacStedu { 112326f3deacStedu if (ntmp->ntm_flag & NTFS_MFLAG_ALLNAMES) 112426f3deacStedu return 1; 112526f3deacStedu 112626f3deacStedu switch (iep->ie_fnametype) { 112726f3deacStedu case 2: 112826f3deacStedu ddprintf(("ntfs_isnamepermitted: skipped DOS name\n")); 112926f3deacStedu return 0; 113026f3deacStedu case 0: case 1: case 3: 113126f3deacStedu return 1; 113226f3deacStedu default: 113326f3deacStedu printf("ntfs_isnamepermitted: " \ 113426f3deacStedu "WARNING! Unknown file name type: %d\n", 113526f3deacStedu iep->ie_fnametype); 113626f3deacStedu break; 113726f3deacStedu } 113826f3deacStedu return 0; 113926f3deacStedu } 114026f3deacStedu 114126f3deacStedu /* 114226f3deacStedu * Read ntfs dir like stream of attr_indexentry, not like btree of them. 114326f3deacStedu * This is done by scanning $BITMAP:$I30 for busy clusters and reading them. 114426f3deacStedu * Of course $INDEX_ROOT:$I30 is read before. Last read values are stored in 114526f3deacStedu * fnode, so we can skip toward record number num almost immediately. 114626f3deacStedu * Anyway this is rather slow routine. The problem is that we don't know 114726f3deacStedu * how many records are there in $INDEX_ALLOCATION:$I30 block. 114826f3deacStedu */ 114926f3deacStedu int 115026f3deacStedu ntfs_ntreaddir( 115126f3deacStedu struct ntfsmount * ntmp, 115226f3deacStedu struct fnode * fp, 115326f3deacStedu u_int32_t num, 115426f3deacStedu struct attr_indexentry ** riepp, 115526f3deacStedu struct proc *p) 115626f3deacStedu { 115726f3deacStedu struct ntnode *ip = FTONT(fp); 115826f3deacStedu struct ntvattr *vap = NULL; /* IndexRoot attribute */ 115926f3deacStedu struct ntvattr *bmvap = NULL; /* BitMap attribute */ 116026f3deacStedu struct ntvattr *iavap = NULL; /* IndexAllocation attribute */ 116126f3deacStedu caddr_t rdbuf; /* Buffer to read directory's blocks */ 11626978a3abSbrad u_int8_t *bmp = NULL; /* Bitmap */ 116326f3deacStedu u_int32_t blsize; /* Index allocation size (2048) */ 116426f3deacStedu u_int32_t rdsize; /* Length of data to read */ 116526f3deacStedu u_int32_t attrnum; /* Current attribute type */ 116626f3deacStedu u_int32_t cpbl = 1; /* Clusters per directory block */ 116726f3deacStedu u_int32_t blnum; 116826f3deacStedu struct attr_indexentry *iep; 116926f3deacStedu int error = ENOENT; 117026f3deacStedu u_int32_t aoff, cnum; 117126f3deacStedu 117226f3deacStedu dprintf(("ntfs_ntreaddir: read ino: %d, num: %d\n", ip->i_number, num)); 117326f3deacStedu error = ntfs_ntget(ip, p); 117426f3deacStedu if (error) 117526f3deacStedu return (error); 117626f3deacStedu 117726f3deacStedu error = ntfs_ntvattrget(ntmp, ip, NTFS_A_INDXROOT, "$I30", 0, &vap); 1178*6f6d0059Sjsing if (error) { 1179*6f6d0059Sjsing error = ENOTDIR; 1180*6f6d0059Sjsing goto fail; 1181*6f6d0059Sjsing } 118226f3deacStedu 118326f3deacStedu if (fp->f_dirblbuf == NULL) { 118426f3deacStedu fp->f_dirblsz = vap->va_a_iroot->ir_size; 1185c6c302e5Stedu fp->f_dirblbuf = malloc(MAX(vap->va_datalen,fp->f_dirblsz), 1186c6c302e5Stedu M_NTFSDIR, M_WAITOK); 118726f3deacStedu } 118826f3deacStedu 118926f3deacStedu blsize = fp->f_dirblsz; 119026f3deacStedu rdbuf = fp->f_dirblbuf; 119126f3deacStedu 1192846c180eSbrad dprintf(("ntfs_ntreaddir: rdbuf: %p, blsize: %d\n", rdbuf, blsize)); 119326f3deacStedu 119426f3deacStedu if (vap->va_a_iroot->ir_flag & NTFS_IRFLAG_INDXALLOC) { 119526f3deacStedu error = ntfs_ntvattrget(ntmp, ip, NTFS_A_INDXBITMAP, "$I30", 119626f3deacStedu 0, &bmvap); 119726f3deacStedu if (error) { 119826f3deacStedu error = ENOTDIR; 119926f3deacStedu goto fail; 120026f3deacStedu } 1201c6c302e5Stedu bmp = malloc(bmvap->va_datalen, M_TEMP, M_WAITOK); 120226f3deacStedu error = ntfs_readattr(ntmp, ip, NTFS_A_INDXBITMAP, "$I30", 0, 120326f3deacStedu bmvap->va_datalen, bmp, NULL); 120426f3deacStedu if (error) 120526f3deacStedu goto fail; 120626f3deacStedu 120726f3deacStedu error = ntfs_ntvattrget(ntmp, ip, NTFS_A_INDX, "$I30", 120826f3deacStedu 0, &iavap); 120926f3deacStedu if (error) { 121026f3deacStedu error = ENOTDIR; 121126f3deacStedu goto fail; 121226f3deacStedu } 121326f3deacStedu cpbl = ntfs_btocn(blsize + ntfs_cntob(1) - 1); 121426f3deacStedu dprintf(("ntfs_ntreaddir: indexalloc: %d, cpbl: %d\n", 121526f3deacStedu iavap->va_datalen, cpbl)); 121626f3deacStedu } else { 121726f3deacStedu dprintf(("ntfs_ntreadidir: w/o BitMap and IndexAllocation\n")); 121826f3deacStedu iavap = bmvap = NULL; 121926f3deacStedu bmp = NULL; 122026f3deacStedu } 122126f3deacStedu 122226f3deacStedu /* Try use previous values */ 122326f3deacStedu if ((fp->f_lastdnum < num) && (fp->f_lastdnum != 0)) { 122426f3deacStedu attrnum = fp->f_lastdattr; 122526f3deacStedu aoff = fp->f_lastdoff; 122626f3deacStedu blnum = fp->f_lastdblnum; 122726f3deacStedu cnum = fp->f_lastdnum; 122826f3deacStedu } else { 122926f3deacStedu attrnum = NTFS_A_INDXROOT; 123026f3deacStedu aoff = sizeof(struct attr_indexroot); 123126f3deacStedu blnum = 0; 123226f3deacStedu cnum = 0; 123326f3deacStedu } 123426f3deacStedu 123526f3deacStedu do { 123626f3deacStedu dprintf(("ntfs_ntreaddir: scan: 0x%x, %d, %d, %d, %d\n", 123726f3deacStedu attrnum, (u_int32_t) blnum, cnum, num, aoff)); 123826f3deacStedu rdsize = (attrnum == NTFS_A_INDXROOT) ? vap->va_datalen : blsize; 123926f3deacStedu error = ntfs_readattr(ntmp, ip, attrnum, "$I30", 124026f3deacStedu ntfs_cntob(blnum * cpbl), rdsize, rdbuf, NULL); 124126f3deacStedu if (error) 124226f3deacStedu goto fail; 124326f3deacStedu 124426f3deacStedu if (attrnum == NTFS_A_INDX) { 124526f3deacStedu error = ntfs_procfixups(ntmp, NTFS_INDXMAGIC, 124626f3deacStedu rdbuf, rdsize); 124726f3deacStedu if (error) 124826f3deacStedu goto fail; 124926f3deacStedu } 125026f3deacStedu if (aoff == 0) 125126f3deacStedu aoff = (attrnum == NTFS_A_INDX) ? 125226f3deacStedu (0x18 + ((struct attr_indexalloc *) rdbuf)->ia_hdrsize) : 125326f3deacStedu sizeof(struct attr_indexroot); 125426f3deacStedu 125526f3deacStedu iep = (struct attr_indexentry *) (rdbuf + aoff); 125626f3deacStedu for (; !(iep->ie_flag & NTFS_IEFLAG_LAST) && (rdsize > aoff); 125726f3deacStedu aoff += iep->reclen, 125826f3deacStedu iep = (struct attr_indexentry *) (rdbuf + aoff)) 125926f3deacStedu { 126026f3deacStedu if (!ntfs_isnamepermitted(ntmp, iep)) continue; 126126f3deacStedu 126226f3deacStedu if (cnum >= num) { 126326f3deacStedu fp->f_lastdnum = cnum; 126426f3deacStedu fp->f_lastdoff = aoff; 126526f3deacStedu fp->f_lastdblnum = blnum; 126626f3deacStedu fp->f_lastdattr = attrnum; 126726f3deacStedu 126826f3deacStedu *riepp = iep; 126926f3deacStedu 127026f3deacStedu error = 0; 127126f3deacStedu goto fail; 127226f3deacStedu } 127326f3deacStedu cnum++; 127426f3deacStedu } 127526f3deacStedu 127626f3deacStedu if (iavap) { 127726f3deacStedu if (attrnum == NTFS_A_INDXROOT) 127826f3deacStedu blnum = 0; 127926f3deacStedu else 128026f3deacStedu blnum++; 128126f3deacStedu 128226f3deacStedu while (ntfs_cntob(blnum * cpbl) < iavap->va_datalen) { 12836978a3abSbrad if (bmp[blnum >> 3] & (1 << (blnum & 7))) 128426f3deacStedu break; 128526f3deacStedu blnum++; 128626f3deacStedu } 128726f3deacStedu 128826f3deacStedu attrnum = NTFS_A_INDX; 128926f3deacStedu aoff = 0; 129026f3deacStedu if (ntfs_cntob(blnum * cpbl) >= iavap->va_datalen) 129126f3deacStedu break; 129226f3deacStedu dprintf(("ntfs_ntreaddir: blnum: %d\n", (u_int32_t) blnum)); 129326f3deacStedu } 129426f3deacStedu } while (iavap); 129526f3deacStedu 129626f3deacStedu *riepp = NULL; 129726f3deacStedu fp->f_lastdnum = 0; 129826f3deacStedu 129926f3deacStedu fail: 130026f3deacStedu if (vap) 130126f3deacStedu ntfs_ntvattrrele(vap); 130226f3deacStedu if (bmvap) 130326f3deacStedu ntfs_ntvattrrele(bmvap); 130426f3deacStedu if (iavap) 130526f3deacStedu ntfs_ntvattrrele(iavap); 130626f3deacStedu if (bmp) 1307e8821f89Shshoexer free(bmp, M_TEMP); 130826f3deacStedu ntfs_ntput(ip, p); 13091ad3841aSjasper 131026f3deacStedu return (error); 131126f3deacStedu } 131226f3deacStedu 131326f3deacStedu /* 131426f3deacStedu * Convert NTFS times that are in 100 ns units and begins from 131526f3deacStedu * 1601 Jan 1 into unix times. 131626f3deacStedu */ 131726f3deacStedu struct timespec 131826f3deacStedu ntfs_nttimetounix( 131926f3deacStedu u_int64_t nt) 132026f3deacStedu { 132126f3deacStedu struct timespec t; 132226f3deacStedu 132326f3deacStedu /* WindowNT times are in 100 ns and from 1601 Jan 1 */ 132426f3deacStedu t.tv_nsec = (nt % (1000 * 1000 * 10)) * 100; 132526f3deacStedu t.tv_sec = nt / (1000 * 1000 * 10) - 132626f3deacStedu 369LL * 365LL * 24LL * 60LL * 60LL - 132726f3deacStedu 89LL * 1LL * 24LL * 60LL * 60LL; 132826f3deacStedu return (t); 132926f3deacStedu } 133026f3deacStedu 133126f3deacStedu /* 133226f3deacStedu * Get file sizes from corresponding attribute. 133326f3deacStedu * 133426f3deacStedu * ntnode under fnode should be locked. 133526f3deacStedu */ 133626f3deacStedu int 133726f3deacStedu ntfs_filesize( 133826f3deacStedu struct ntfsmount * ntmp, 133926f3deacStedu struct fnode * fp, 134026f3deacStedu u_int64_t * size, 134126f3deacStedu u_int64_t * bytes) 134226f3deacStedu { 134326f3deacStedu struct ntvattr *vap; 134426f3deacStedu struct ntnode *ip = FTONT(fp); 134526f3deacStedu u_int64_t sz, bn; 134626f3deacStedu int error; 134726f3deacStedu 134826f3deacStedu dprintf(("ntfs_filesize: ino: %d\n", ip->i_number)); 134926f3deacStedu 135026f3deacStedu error = ntfs_ntvattrget(ntmp, ip, 135126f3deacStedu fp->f_attrtype, fp->f_attrname, 0, &vap); 135226f3deacStedu if (error) 135326f3deacStedu return (error); 135426f3deacStedu 135526f3deacStedu bn = vap->va_allocated; 135626f3deacStedu sz = vap->va_datalen; 135726f3deacStedu 135826f3deacStedu dprintf(("ntfs_filesize: %d bytes (%d bytes allocated)\n", 135926f3deacStedu (u_int32_t) sz, (u_int32_t) bn)); 136026f3deacStedu 136126f3deacStedu if (size) 136226f3deacStedu *size = sz; 136326f3deacStedu if (bytes) 136426f3deacStedu *bytes = bn; 136526f3deacStedu 136626f3deacStedu ntfs_ntvattrrele(vap); 136726f3deacStedu 136826f3deacStedu return (0); 136926f3deacStedu } 137026f3deacStedu 137126f3deacStedu /* 1372835c1779Sbrad * This is one of the write routines. 137326f3deacStedu */ 137426f3deacStedu int 137526f3deacStedu ntfs_writeattr_plain( 137626f3deacStedu struct ntfsmount * ntmp, 137726f3deacStedu struct ntnode * ip, 137826f3deacStedu u_int32_t attrnum, 137926f3deacStedu char *attrname, 138026f3deacStedu off_t roff, 138126f3deacStedu size_t rsize, 138226f3deacStedu void *rdata, 138326f3deacStedu size_t * initp, 138426f3deacStedu struct uio *uio) 138526f3deacStedu { 138626f3deacStedu size_t init; 138726f3deacStedu int error = 0; 138826f3deacStedu off_t off = roff, left = rsize, towrite; 138926f3deacStedu caddr_t data = rdata; 139026f3deacStedu struct ntvattr *vap; 139126f3deacStedu *initp = 0; 139226f3deacStedu 139326f3deacStedu while (left) { 139426f3deacStedu error = ntfs_ntvattrget(ntmp, ip, attrnum, attrname, 139526f3deacStedu ntfs_btocn(off), &vap); 139626f3deacStedu if (error) 139726f3deacStedu return (error); 1398835c1779Sbrad towrite = MIN(left, ntfs_cntob(vap->va_vcnend + 1) - off); 139926f3deacStedu ddprintf(("ntfs_writeattr_plain: o: %d, s: %d (%d - %d)\n", 140026f3deacStedu (u_int32_t) off, (u_int32_t) towrite, 140126f3deacStedu (u_int32_t) vap->va_vcnstart, 140226f3deacStedu (u_int32_t) vap->va_vcnend)); 140326f3deacStedu error = ntfs_writentvattr_plain(ntmp, ip, vap, 140426f3deacStedu off - ntfs_cntob(vap->va_vcnstart), 140526f3deacStedu towrite, data, &init, uio); 140626f3deacStedu if (error) { 140726f3deacStedu dprintf(("ntfs_writeattr_plain: " \ 140826f3deacStedu "ntfs_writentvattr_plain failed: o: %d, s: %d\n", 140926f3deacStedu (u_int32_t) off, (u_int32_t) towrite)); 141026f3deacStedu dprintf(("ntfs_writeattr_plain: attrib: %d - %d\n", 141126f3deacStedu (u_int32_t) vap->va_vcnstart, 141226f3deacStedu (u_int32_t) vap->va_vcnend)); 141326f3deacStedu ntfs_ntvattrrele(vap); 141426f3deacStedu break; 141526f3deacStedu } 141626f3deacStedu ntfs_ntvattrrele(vap); 141726f3deacStedu left -= towrite; 141826f3deacStedu off += towrite; 141926f3deacStedu data = data + towrite; 142026f3deacStedu *initp += init; 142126f3deacStedu } 142226f3deacStedu 142326f3deacStedu return (error); 142426f3deacStedu } 142526f3deacStedu 142626f3deacStedu /* 1427835c1779Sbrad * This is one of the write routines. 142826f3deacStedu * 142926f3deacStedu * ntnode should be locked. 143026f3deacStedu */ 143126f3deacStedu int 143226f3deacStedu ntfs_writentvattr_plain( 143326f3deacStedu struct ntfsmount * ntmp, 143426f3deacStedu struct ntnode * ip, 143526f3deacStedu struct ntvattr * vap, 143626f3deacStedu off_t roff, 143726f3deacStedu size_t rsize, 143826f3deacStedu void *rdata, 143926f3deacStedu size_t * initp, 144026f3deacStedu struct uio *uio) 144126f3deacStedu { 144226f3deacStedu int error = 0; 144326f3deacStedu int off; 144426f3deacStedu int cnt; 144526f3deacStedu cn_t ccn, ccl, cn, left, cl; 144626f3deacStedu caddr_t data = rdata; 144726f3deacStedu struct buf *bp; 144826f3deacStedu size_t tocopy; 144926f3deacStedu 145026f3deacStedu *initp = 0; 145126f3deacStedu 145226f3deacStedu if ((vap->va_flag & NTFS_AF_INRUN) == 0) { 145326f3deacStedu dprintf(("ntfs_writevattr_plain: CAN'T WRITE RES. ATTRIBUTE\n")); 145426f3deacStedu return ENOTTY; 145526f3deacStedu } 145626f3deacStedu 145726f3deacStedu ddprintf(("ntfs_writentvattr_plain: data in run: %lu chains\n", 145826f3deacStedu vap->va_vruncnt)); 145926f3deacStedu 146026f3deacStedu off = roff; 146126f3deacStedu left = rsize; 146226f3deacStedu ccl = 0; 146326f3deacStedu ccn = 0; 146426f3deacStedu cnt = 0; 146526f3deacStedu for (; left && (cnt < vap->va_vruncnt); cnt++) { 146626f3deacStedu ccn = vap->va_vruncn[cnt]; 146726f3deacStedu ccl = vap->va_vruncl[cnt]; 146826f3deacStedu 146926f3deacStedu ddprintf(("ntfs_writentvattr_plain: " \ 147026f3deacStedu "left %d, cn: 0x%x, cl: %d, off: %d\n", \ 147126f3deacStedu (u_int32_t) left, (u_int32_t) ccn, \ 147226f3deacStedu (u_int32_t) ccl, (u_int32_t) off)); 147326f3deacStedu 147426f3deacStedu if (ntfs_cntob(ccl) < off) { 147526f3deacStedu off -= ntfs_cntob(ccl); 147626f3deacStedu cnt++; 147726f3deacStedu continue; 147826f3deacStedu } 147926f3deacStedu if (!ccn && ip->i_number != NTFS_BOOTINO) 148026f3deacStedu continue; /* XXX */ 148126f3deacStedu 148226f3deacStedu ccl -= ntfs_btocn(off); 148326f3deacStedu cn = ccn + ntfs_btocn(off); 148426f3deacStedu off = ntfs_btocnoff(off); 148526f3deacStedu 148626f3deacStedu while (left && ccl) { 1487835c1779Sbrad /* 1488835c1779Sbrad * Always read and write single clusters at a time - 1489835c1779Sbrad * we need to avoid requesting differently-sized 1490835c1779Sbrad * blocks at the same disk offsets to avoid 1491835c1779Sbrad * confusing the buffer cache. 1492835c1779Sbrad */ 1493835c1779Sbrad tocopy = MIN(left, ntfs_cntob(1) - off); 149426f3deacStedu cl = ntfs_btocl(tocopy + off); 1495835c1779Sbrad KASSERT(cl == 1 && tocopy <= ntfs_cntob(1)); 149626f3deacStedu ddprintf(("ntfs_writentvattr_plain: write: " \ 149726f3deacStedu "cn: 0x%x cl: %d, off: %d len: %d, left: %d\n", 149826f3deacStedu (u_int32_t) cn, (u_int32_t) cl, 149926f3deacStedu (u_int32_t) off, (u_int32_t) tocopy, 150026f3deacStedu (u_int32_t) left)); 150126f3deacStedu if ((off == 0) && (tocopy == ntfs_cntob(cl))) 150226f3deacStedu { 150326f3deacStedu bp = getblk(ntmp->ntm_devvp, ntfs_cntobn(cn), 150426f3deacStedu ntfs_cntob(cl), 0, 0); 150526f3deacStedu clrbuf(bp); 150626f3deacStedu } else { 150726f3deacStedu error = bread(ntmp->ntm_devvp, ntfs_cntobn(cn), 150893f62a9eStedu ntfs_cntob(cl), &bp); 150926f3deacStedu if (error) { 151026f3deacStedu brelse(bp); 151126f3deacStedu return (error); 151226f3deacStedu } 151326f3deacStedu } 1514fca26c8fSmiod if (uio) { 1515fca26c8fSmiod error = uiomove(bp->b_data + off, tocopy, uio); 1516fca26c8fSmiod if (error != 0) 1517fca26c8fSmiod break; 1518fca26c8fSmiod } else 151926f3deacStedu memcpy(bp->b_data + off, data, tocopy); 152026f3deacStedu bawrite(bp); 152126f3deacStedu data = data + tocopy; 152226f3deacStedu *initp += tocopy; 152326f3deacStedu off = 0; 152426f3deacStedu left -= tocopy; 152526f3deacStedu cn += cl; 152626f3deacStedu ccl -= cl; 152726f3deacStedu } 152826f3deacStedu } 152926f3deacStedu 1530fca26c8fSmiod if (left && error == 0) { 153126f3deacStedu printf("ntfs_writentvattr_plain: POSSIBLE RUN ERROR\n"); 153226f3deacStedu error = EINVAL; 153326f3deacStedu } 153426f3deacStedu 153526f3deacStedu return (error); 153626f3deacStedu } 153726f3deacStedu 153826f3deacStedu /* 1539835c1779Sbrad * This is one of the read routines. 154026f3deacStedu * 154126f3deacStedu * ntnode should be locked. 154226f3deacStedu */ 154326f3deacStedu int 154426f3deacStedu ntfs_readntvattr_plain( 154526f3deacStedu struct ntfsmount * ntmp, 154626f3deacStedu struct ntnode * ip, 154726f3deacStedu struct ntvattr * vap, 154826f3deacStedu off_t roff, 154926f3deacStedu size_t rsize, 155026f3deacStedu void *rdata, 155126f3deacStedu size_t * initp, 155226f3deacStedu struct uio *uio) 155326f3deacStedu { 155426f3deacStedu int error = 0; 155526f3deacStedu int off; 155626f3deacStedu 155726f3deacStedu *initp = 0; 155826f3deacStedu if (vap->va_flag & NTFS_AF_INRUN) { 155926f3deacStedu int cnt; 156026f3deacStedu cn_t ccn, ccl, cn, left, cl; 156126f3deacStedu caddr_t data = rdata; 156226f3deacStedu struct buf *bp; 156326f3deacStedu size_t tocopy; 156426f3deacStedu 156526f3deacStedu ddprintf(("ntfs_readntvattr_plain: data in run: %lu chains\n", 156626f3deacStedu vap->va_vruncnt)); 156726f3deacStedu 156826f3deacStedu off = roff; 156926f3deacStedu left = rsize; 157026f3deacStedu ccl = 0; 157126f3deacStedu ccn = 0; 157226f3deacStedu cnt = 0; 157326f3deacStedu while (left && (cnt < vap->va_vruncnt)) { 157426f3deacStedu ccn = vap->va_vruncn[cnt]; 157526f3deacStedu ccl = vap->va_vruncl[cnt]; 157626f3deacStedu 157726f3deacStedu ddprintf(("ntfs_readntvattr_plain: " \ 157826f3deacStedu "left %d, cn: 0x%x, cl: %d, off: %d\n", \ 157926f3deacStedu (u_int32_t) left, (u_int32_t) ccn, \ 158026f3deacStedu (u_int32_t) ccl, (u_int32_t) off)); 158126f3deacStedu 158226f3deacStedu if (ntfs_cntob(ccl) < off) { 158326f3deacStedu off -= ntfs_cntob(ccl); 158426f3deacStedu cnt++; 158526f3deacStedu continue; 158626f3deacStedu } 158726f3deacStedu if (ccn || ip->i_number == NTFS_BOOTINO) { 158826f3deacStedu ccl -= ntfs_btocn(off); 158926f3deacStedu cn = ccn + ntfs_btocn(off); 159026f3deacStedu off = ntfs_btocnoff(off); 159126f3deacStedu 159226f3deacStedu while (left && ccl) { 159326f3deacStedu /* 1594835c1779Sbrad * Always read single clusters at a 1595835c1779Sbrad * time - we need to avoid reading 1596835c1779Sbrad * differently-sized blocks at the 1597835c1779Sbrad * same disk offsets to avoid 1598835c1779Sbrad * confusing the buffer cache. 159926f3deacStedu */ 1600835c1779Sbrad tocopy = MIN(left, 1601835c1779Sbrad ntfs_cntob(1) - off); 1602835c1779Sbrad cl = ntfs_btocl(tocopy + off); 1603835c1779Sbrad KASSERT(cl == 1 && 1604835c1779Sbrad tocopy <= ntfs_cntob(1)); 160526f3deacStedu 160626f3deacStedu ddprintf(("ntfs_readntvattr_plain: " \ 160726f3deacStedu "read: cn: 0x%x cl: %d, " \ 160826f3deacStedu "off: %d len: %d, left: %d\n", 160926f3deacStedu (u_int32_t) cn, 161026f3deacStedu (u_int32_t) cl, 161126f3deacStedu (u_int32_t) off, 161226f3deacStedu (u_int32_t) tocopy, 161326f3deacStedu (u_int32_t) left)); 161426f3deacStedu error = bread(ntmp->ntm_devvp, 161526f3deacStedu ntfs_cntobn(cn), 161626f3deacStedu ntfs_cntob(cl), 161793f62a9eStedu &bp); 161826f3deacStedu if (error) { 161926f3deacStedu brelse(bp); 162026f3deacStedu return (error); 162126f3deacStedu } 162226f3deacStedu if (uio) { 1623fca26c8fSmiod error = uiomove(bp->b_data + off, 162426f3deacStedu tocopy, uio); 1625fca26c8fSmiod if (error != 0) 1626fca26c8fSmiod break; 162726f3deacStedu } else { 162826f3deacStedu memcpy(data, bp->b_data + off, 162926f3deacStedu tocopy); 163026f3deacStedu } 163126f3deacStedu brelse(bp); 163226f3deacStedu data = data + tocopy; 163326f3deacStedu *initp += tocopy; 163426f3deacStedu off = 0; 163526f3deacStedu left -= tocopy; 163626f3deacStedu cn += cl; 163726f3deacStedu ccl -= cl; 163826f3deacStedu } 163926f3deacStedu } else { 1640835c1779Sbrad tocopy = MIN(left, ntfs_cntob(ccl) - off); 164126f3deacStedu ddprintf(("ntfs_readntvattr_plain: " 164226f3deacStedu "hole: ccn: 0x%x ccl: %d, off: %d, " \ 164326f3deacStedu " len: %d, left: %d\n", 164426f3deacStedu (u_int32_t) ccn, (u_int32_t) ccl, 164526f3deacStedu (u_int32_t) off, (u_int32_t) tocopy, 164626f3deacStedu (u_int32_t) left)); 164726f3deacStedu left -= tocopy; 164826f3deacStedu off = 0; 164926f3deacStedu if (uio) { 165026f3deacStedu size_t remains = tocopy; 1651fca26c8fSmiod for(; remains; remains--) { 1652fca26c8fSmiod error = uiomove("", 1, uio); 1653fca26c8fSmiod if (error != 0) 1654fca26c8fSmiod break; 1655fca26c8fSmiod } 165626f3deacStedu } else 165726f3deacStedu bzero(data, tocopy); 165826f3deacStedu data = data + tocopy; 165926f3deacStedu } 166026f3deacStedu cnt++; 1661fca26c8fSmiod if (error != 0) 1662fca26c8fSmiod break; 166326f3deacStedu } 1664fca26c8fSmiod if (left && error == 0) { 166526f3deacStedu printf("ntfs_readntvattr_plain: POSSIBLE RUN ERROR\n"); 166626f3deacStedu error = E2BIG; 166726f3deacStedu } 166826f3deacStedu } else { 166926f3deacStedu ddprintf(("ntfs_readnvattr_plain: data is in mft record\n")); 167026f3deacStedu if (uio) 1671fca26c8fSmiod error = uiomove(vap->va_datap + roff, rsize, uio); 167226f3deacStedu else 167326f3deacStedu memcpy(rdata, vap->va_datap + roff, rsize); 167426f3deacStedu *initp += rsize; 167526f3deacStedu } 167626f3deacStedu 167726f3deacStedu return (error); 167826f3deacStedu } 167926f3deacStedu 168026f3deacStedu /* 168126f3deacStedu * This is one of read routines. 168226f3deacStedu */ 168326f3deacStedu int 168426f3deacStedu ntfs_readattr_plain( 168526f3deacStedu struct ntfsmount * ntmp, 168626f3deacStedu struct ntnode * ip, 168726f3deacStedu u_int32_t attrnum, 168826f3deacStedu char *attrname, 168926f3deacStedu off_t roff, 169026f3deacStedu size_t rsize, 169126f3deacStedu void *rdata, 169226f3deacStedu size_t * initp, 169326f3deacStedu struct uio *uio) 169426f3deacStedu { 169526f3deacStedu size_t init; 169626f3deacStedu int error = 0; 169726f3deacStedu off_t off = roff, left = rsize, toread; 169826f3deacStedu caddr_t data = rdata; 169926f3deacStedu struct ntvattr *vap; 170026f3deacStedu *initp = 0; 170126f3deacStedu 170226f3deacStedu while (left) { 170326f3deacStedu error = ntfs_ntvattrget(ntmp, ip, attrnum, attrname, 170426f3deacStedu ntfs_btocn(off), &vap); 170526f3deacStedu if (error) 170626f3deacStedu return (error); 1707835c1779Sbrad toread = MIN(left, ntfs_cntob(vap->va_vcnend + 1) - off); 170826f3deacStedu ddprintf(("ntfs_readattr_plain: o: %d, s: %d (%d - %d)\n", 170926f3deacStedu (u_int32_t) off, (u_int32_t) toread, 171026f3deacStedu (u_int32_t) vap->va_vcnstart, 171126f3deacStedu (u_int32_t) vap->va_vcnend)); 171226f3deacStedu error = ntfs_readntvattr_plain(ntmp, ip, vap, 171326f3deacStedu off - ntfs_cntob(vap->va_vcnstart), 171426f3deacStedu toread, data, &init, uio); 171526f3deacStedu if (error) { 171626f3deacStedu printf("ntfs_readattr_plain: " \ 171726f3deacStedu "ntfs_readntvattr_plain failed: o: %d, s: %d\n", 171826f3deacStedu (u_int32_t) off, (u_int32_t) toread); 171926f3deacStedu printf("ntfs_readattr_plain: attrib: %d - %d\n", 172026f3deacStedu (u_int32_t) vap->va_vcnstart, 172126f3deacStedu (u_int32_t) vap->va_vcnend); 172226f3deacStedu ntfs_ntvattrrele(vap); 172326f3deacStedu break; 172426f3deacStedu } 172526f3deacStedu ntfs_ntvattrrele(vap); 172626f3deacStedu left -= toread; 172726f3deacStedu off += toread; 172826f3deacStedu data = data + toread; 172926f3deacStedu *initp += init; 173026f3deacStedu } 173126f3deacStedu 173226f3deacStedu return (error); 173326f3deacStedu } 173426f3deacStedu 173526f3deacStedu /* 173626f3deacStedu * This is one of read routines. 173726f3deacStedu */ 173826f3deacStedu int 173926f3deacStedu ntfs_readattr( 174026f3deacStedu struct ntfsmount * ntmp, 174126f3deacStedu struct ntnode * ip, 174226f3deacStedu u_int32_t attrnum, 174326f3deacStedu char *attrname, 174426f3deacStedu off_t roff, 174526f3deacStedu size_t rsize, 174626f3deacStedu void *rdata, 174726f3deacStedu struct uio *uio) 174826f3deacStedu { 174926f3deacStedu int error = 0; 175026f3deacStedu struct ntvattr *vap; 175126f3deacStedu size_t init; 175226f3deacStedu 175326f3deacStedu ddprintf(("ntfs_readattr: reading %d: 0x%x, from %d size %d bytes\n", 175426f3deacStedu ip->i_number, attrnum, (u_int32_t) roff, (u_int32_t) rsize)); 175526f3deacStedu 175626f3deacStedu error = ntfs_ntvattrget(ntmp, ip, attrnum, attrname, 0, &vap); 175726f3deacStedu if (error) 175826f3deacStedu return (error); 175926f3deacStedu 176026f3deacStedu if ((roff > vap->va_datalen) || 176126f3deacStedu (roff + rsize > vap->va_datalen)) { 176226f3deacStedu printf("ntfs_readattr: offset too big: %ld (%ld) > %ld\n", 176326f3deacStedu (long int) roff, (long int) roff + rsize, 176426f3deacStedu (long int) vap->va_datalen); 176526f3deacStedu ntfs_ntvattrrele(vap); 176626f3deacStedu return (E2BIG); 176726f3deacStedu } 176826f3deacStedu if (vap->va_compression && vap->va_compressalg) { 176926f3deacStedu u_int8_t *cup; 177026f3deacStedu u_int8_t *uup; 177126f3deacStedu off_t off = roff, left = rsize, tocopy; 177226f3deacStedu caddr_t data = rdata; 177326f3deacStedu cn_t cn; 177426f3deacStedu 177526f3deacStedu ddprintf(("ntfs_ntreadattr: compression: %d\n", 177626f3deacStedu vap->va_compressalg)); 177726f3deacStedu 1778e8821f89Shshoexer cup = malloc(ntfs_cntob(NTFS_COMPUNIT_CL), M_NTFSDECOMP, 1779e8821f89Shshoexer M_WAITOK); 1780e8821f89Shshoexer uup = malloc(ntfs_cntob(NTFS_COMPUNIT_CL), M_NTFSDECOMP, 1781e8821f89Shshoexer M_WAITOK); 178226f3deacStedu 178326f3deacStedu cn = (ntfs_btocn(roff)) & (~(NTFS_COMPUNIT_CL - 1)); 178426f3deacStedu off = roff - ntfs_cntob(cn); 178526f3deacStedu 178626f3deacStedu while (left) { 178726f3deacStedu error = ntfs_readattr_plain(ntmp, ip, attrnum, 178826f3deacStedu attrname, ntfs_cntob(cn), 178926f3deacStedu ntfs_cntob(NTFS_COMPUNIT_CL), 179026f3deacStedu cup, &init, NULL); 179126f3deacStedu if (error) 179226f3deacStedu break; 179326f3deacStedu 1794835c1779Sbrad tocopy = MIN(left, ntfs_cntob(NTFS_COMPUNIT_CL) - off); 179526f3deacStedu 179626f3deacStedu if (init == ntfs_cntob(NTFS_COMPUNIT_CL)) { 179726f3deacStedu if (uio) 1798fca26c8fSmiod error = uiomove(cup + off, tocopy, uio); 179926f3deacStedu else 180026f3deacStedu memcpy(data, cup + off, tocopy); 180126f3deacStedu } else if (init == 0) { 180226f3deacStedu if (uio) { 180326f3deacStedu size_t remains = tocopy; 1804fca26c8fSmiod for(; remains; remains--) { 1805fca26c8fSmiod error = uiomove("", 1, uio); 1806fca26c8fSmiod if (error != 0) 1807fca26c8fSmiod break; 1808fca26c8fSmiod } 180926f3deacStedu } 181026f3deacStedu else 181126f3deacStedu bzero(data, tocopy); 181226f3deacStedu } else { 181326f3deacStedu error = ntfs_uncompunit(ntmp, uup, cup); 181426f3deacStedu if (error) 181526f3deacStedu break; 181626f3deacStedu if (uio) 1817fca26c8fSmiod error = uiomove(uup + off, tocopy, uio); 181826f3deacStedu else 181926f3deacStedu memcpy(data, uup + off, tocopy); 182026f3deacStedu } 1821fca26c8fSmiod if (error) 1822fca26c8fSmiod break; 182326f3deacStedu 182426f3deacStedu left -= tocopy; 182526f3deacStedu data = data + tocopy; 182626f3deacStedu off += tocopy - ntfs_cntob(NTFS_COMPUNIT_CL); 182726f3deacStedu cn += NTFS_COMPUNIT_CL; 182826f3deacStedu } 182926f3deacStedu 1830e8821f89Shshoexer free(uup, M_NTFSDECOMP); 1831e8821f89Shshoexer free(cup, M_NTFSDECOMP); 183226f3deacStedu } else 183326f3deacStedu error = ntfs_readattr_plain(ntmp, ip, attrnum, attrname, 183426f3deacStedu roff, rsize, rdata, &init, uio); 183526f3deacStedu ntfs_ntvattrrele(vap); 183626f3deacStedu return (error); 183726f3deacStedu } 183826f3deacStedu 183926f3deacStedu #if UNUSED_CODE 184026f3deacStedu int 184126f3deacStedu ntfs_parserun( 184226f3deacStedu cn_t * cn, 184326f3deacStedu cn_t * cl, 184426f3deacStedu u_int8_t * run, 184526f3deacStedu u_long len, 184626f3deacStedu u_long *off) 184726f3deacStedu { 184826f3deacStedu u_int8_t sz; 184926f3deacStedu int i; 185026f3deacStedu 185126f3deacStedu if (NULL == run) { 185226f3deacStedu printf("ntfs_parsetun: run == NULL\n"); 185326f3deacStedu return (EINVAL); 185426f3deacStedu } 185526f3deacStedu sz = run[(*off)++]; 185626f3deacStedu if (0 == sz) { 185726f3deacStedu printf("ntfs_parserun: trying to go out of run\n"); 185826f3deacStedu return (E2BIG); 185926f3deacStedu } 186026f3deacStedu *cl = 0; 186126f3deacStedu if ((sz & 0xF) > 8 || (*off) + (sz & 0xF) > len) { 186226f3deacStedu printf("ntfs_parserun: " \ 186326f3deacStedu "bad run: length too big: sz: 0x%02x (%ld < %ld + sz)\n", 186426f3deacStedu sz, len, *off); 186526f3deacStedu return (EINVAL); 186626f3deacStedu } 186726f3deacStedu for (i = 0; i < (sz & 0xF); i++) 186826f3deacStedu *cl += (u_int32_t) run[(*off)++] << (i << 3); 186926f3deacStedu 187026f3deacStedu sz >>= 4; 187126f3deacStedu if ((sz & 0xF) > 8 || (*off) + (sz & 0xF) > len) { 187226f3deacStedu printf("ntfs_parserun: " \ 187326f3deacStedu "bad run: length too big: sz: 0x%02x (%ld < %ld + sz)\n", 187426f3deacStedu sz, len, *off); 187526f3deacStedu return (EINVAL); 187626f3deacStedu } 187726f3deacStedu for (i = 0; i < (sz & 0xF); i++) 187826f3deacStedu *cn += (u_int32_t) run[(*off)++] << (i << 3); 187926f3deacStedu 188026f3deacStedu return (0); 188126f3deacStedu } 188226f3deacStedu #endif 188326f3deacStedu 188426f3deacStedu /* 188526f3deacStedu * Process fixup routine on given buffer. 188626f3deacStedu */ 188726f3deacStedu int 188826f3deacStedu ntfs_procfixups( 188926f3deacStedu struct ntfsmount * ntmp, 189026f3deacStedu u_int32_t magic, 189126f3deacStedu caddr_t buf, 189226f3deacStedu size_t len) 189326f3deacStedu { 189426f3deacStedu struct fixuphdr *fhp = (struct fixuphdr *) buf; 189526f3deacStedu int i; 189626f3deacStedu u_int16_t fixup; 189726f3deacStedu u_int16_t *fxp; 189826f3deacStedu u_int16_t *cfxp; 189926f3deacStedu 190026f3deacStedu if (fhp->fh_magic != magic) { 190126f3deacStedu printf("ntfs_procfixups: magic doesn't match: %08x != %08x\n", 190226f3deacStedu fhp->fh_magic, magic); 190326f3deacStedu return (EINVAL); 190426f3deacStedu } 190526f3deacStedu if ((fhp->fh_fnum - 1) * ntmp->ntm_bps != len) { 190626f3deacStedu printf("ntfs_procfixups: " \ 190726f3deacStedu "bad fixups number: %d for %ld bytes block\n", 190826f3deacStedu fhp->fh_fnum, (long)len); /* XXX printf kludge */ 190926f3deacStedu return (EINVAL); 191026f3deacStedu } 191126f3deacStedu if (fhp->fh_foff >= ntmp->ntm_spc * ntmp->ntm_mftrecsz * ntmp->ntm_bps) { 191226f3deacStedu printf("ntfs_procfixups: invalid offset: %x", fhp->fh_foff); 191326f3deacStedu return (EINVAL); 191426f3deacStedu } 191526f3deacStedu fxp = (u_int16_t *) (buf + fhp->fh_foff); 191626f3deacStedu cfxp = (u_int16_t *) (buf + ntmp->ntm_bps - 2); 191726f3deacStedu fixup = *fxp++; 191826f3deacStedu for (i = 1; i < fhp->fh_fnum; i++, fxp++) { 191926f3deacStedu if (*cfxp != fixup) { 192026f3deacStedu printf("ntfs_procfixups: fixup %d doesn't match\n", i); 192126f3deacStedu return (EINVAL); 192226f3deacStedu } 192326f3deacStedu *cfxp = *fxp; 1924835c1779Sbrad cfxp = (u_int16_t *)((caddr_t)cfxp + ntmp->ntm_bps); 192526f3deacStedu } 192626f3deacStedu return (0); 192726f3deacStedu } 192826f3deacStedu 192926f3deacStedu #if UNUSED_CODE 193026f3deacStedu int 193126f3deacStedu ntfs_runtocn( 193226f3deacStedu cn_t * cn, 193326f3deacStedu struct ntfsmount * ntmp, 193426f3deacStedu u_int8_t * run, 193526f3deacStedu u_long len, 193626f3deacStedu cn_t vcn) 193726f3deacStedu { 193826f3deacStedu cn_t ccn = 0; 193926f3deacStedu cn_t ccl = 0; 194026f3deacStedu u_long off = 0; 194126f3deacStedu int error = 0; 194226f3deacStedu 194326f3deacStedu #if NTFS_DEBUG 194426f3deacStedu int i; 1945846c180eSbrad printf("ntfs_runtocn: run: %p, %ld bytes, vcn:%ld\n", 194626f3deacStedu run, len, (u_long) vcn); 194726f3deacStedu printf("ntfs_runtocn: run: "); 194826f3deacStedu for (i = 0; i < len; i++) 194926f3deacStedu printf("0x%02x ", run[i]); 195026f3deacStedu printf("\n"); 195126f3deacStedu #endif 195226f3deacStedu 195326f3deacStedu if (NULL == run) { 195426f3deacStedu printf("ntfs_runtocn: run == NULL\n"); 195526f3deacStedu return (EINVAL); 195626f3deacStedu } 195726f3deacStedu do { 195826f3deacStedu if (run[off] == 0) { 195926f3deacStedu printf("ntfs_runtocn: vcn too big\n"); 196026f3deacStedu return (E2BIG); 196126f3deacStedu } 196226f3deacStedu vcn -= ccl; 196326f3deacStedu error = ntfs_parserun(&ccn, &ccl, run, len, &off); 196426f3deacStedu if (error) { 196526f3deacStedu printf("ntfs_runtocn: ntfs_parserun failed\n"); 196626f3deacStedu return (error); 196726f3deacStedu } 196826f3deacStedu } while (ccl <= vcn); 196926f3deacStedu *cn = ccn + vcn; 197026f3deacStedu return (0); 197126f3deacStedu } 197226f3deacStedu #endif 197326f3deacStedu 197426f3deacStedu /* 1975274476fcStedu * this initializes toupper table & dependant variables to be ready for 1976274476fcStedu * later work 1977274476fcStedu */ 1978274476fcStedu void 1979274476fcStedu ntfs_toupper_init() 1980274476fcStedu { 1981274476fcStedu ntfs_toupper_tab = (wchar *) NULL; 1982274476fcStedu ntfs_toupper_usecount = 0; 1983274476fcStedu } 1984274476fcStedu 1985274476fcStedu /* 1986274476fcStedu * if the ntfs_toupper_tab[] is filled already, just raise use count; 1987274476fcStedu * otherwise read the data from the filesystem we are currently mounting 198826f3deacStedu */ 198926f3deacStedu int 1990274476fcStedu ntfs_toupper_use(mp, ntmp, p) 1991274476fcStedu struct mount *mp; 1992274476fcStedu struct ntfsmount *ntmp; 1993274476fcStedu struct proc *p; 199426f3deacStedu { 199526f3deacStedu int error = 0; 199626f3deacStedu struct vnode *vp; 199726f3deacStedu 1998274476fcStedu /* get exclusive access */ 1999274476fcStedu rw_enter_write(&ntfs_toupper_lock); 2000274476fcStedu 200126f3deacStedu /* only read the translation data from a file if it hasn't been 200226f3deacStedu * read already */ 200326f3deacStedu if (ntfs_toupper_tab) 200426f3deacStedu goto out; 200526f3deacStedu 200626f3deacStedu /* 200726f3deacStedu * Read in Unicode lowercase -> uppercase translation file. 200826f3deacStedu * XXX for now, just the first 256 entries are used anyway, 200926f3deacStedu * so don't bother reading more 201026f3deacStedu */ 2011274476fcStedu ntfs_toupper_tab = malloc(256 * 256 * sizeof(wchar), M_NTFSRDATA, 2012274476fcStedu M_WAITOK); 201326f3deacStedu 201426f3deacStedu if ((error = VFS_VGET(mp, NTFS_UPCASEINO, &vp))) 201526f3deacStedu goto out; 2016274476fcStedu error = ntfs_readattr(ntmp, VTONT(vp), NTFS_A_DATA, NULL, 2017274476fcStedu 0, 256*256*sizeof(wchar), (char *) ntfs_toupper_tab, 2018274476fcStedu NULL); 201926f3deacStedu vput(vp); 202026f3deacStedu 2021274476fcStedu out: 2022274476fcStedu ntfs_toupper_usecount++; 2023274476fcStedu rw_exit_write(&ntfs_toupper_lock); 2024274476fcStedu return (error); 2025e7116e76Stedu } 2026e7116e76Stedu 2027274476fcStedu /* 2028274476fcStedu * lower the use count and if it reaches zero, free the memory 2029274476fcStedu * tied by toupper table 2030274476fcStedu */ 2031274476fcStedu void 2032274476fcStedu ntfs_toupper_unuse(p) 2033274476fcStedu struct proc *p; 2034274476fcStedu { 2035274476fcStedu /* get exclusive access */ 2036274476fcStedu rw_enter_write(&ntfs_toupper_lock); 2037e7116e76Stedu 2038274476fcStedu ntfs_toupper_usecount--; 2039274476fcStedu if (ntfs_toupper_usecount == 0) { 2040274476fcStedu free(ntfs_toupper_tab, M_NTFSRDATA); 2041274476fcStedu ntfs_toupper_tab = NULL; 2042274476fcStedu } 2043274476fcStedu #ifdef DIAGNOSTIC 2044274476fcStedu else if (ntfs_toupper_usecount < 0) { 2045274476fcStedu panic("ntfs_toupper_unuse(): use count negative: %d", 2046274476fcStedu ntfs_toupper_usecount); 2047274476fcStedu } 2048274476fcStedu #endif 2049274476fcStedu 2050274476fcStedu /* release the lock */ 2051274476fcStedu rw_exit_write(&ntfs_toupper_lock); 205226f3deacStedu } 2053