1*1abdbfdeSderaadt /* $OpenBSD: ntfs_subr.c,v 1.32 2013/06/11 16:42:17 deraadt Exp $ */ 226f3deacStedu /* $NetBSD: ntfs_subr.c,v 1.4 2003/04/10 21:37:32 jdolecek Exp $ */ 326f3deacStedu 426f3deacStedu /*- 526f3deacStedu * Copyright (c) 1998, 1999 Semen Ustimenko (semenu@FreeBSD.org) 626f3deacStedu * All rights reserved. 726f3deacStedu * 826f3deacStedu * Redistribution and use in source and binary forms, with or without 926f3deacStedu * modification, are permitted provided that the following conditions 1026f3deacStedu * are met: 1126f3deacStedu * 1. Redistributions of source code must retain the above copyright 1226f3deacStedu * notice, this list of conditions and the following disclaimer. 1326f3deacStedu * 2. Redistributions in binary form must reproduce the above copyright 1426f3deacStedu * notice, this list of conditions and the following disclaimer in the 1526f3deacStedu * documentation and/or other materials provided with the distribution. 1626f3deacStedu * 1726f3deacStedu * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 1826f3deacStedu * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1926f3deacStedu * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2026f3deacStedu * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 2126f3deacStedu * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2226f3deacStedu * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2326f3deacStedu * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2426f3deacStedu * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2526f3deacStedu * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2626f3deacStedu * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2726f3deacStedu * SUCH DAMAGE. 2826f3deacStedu * 2926f3deacStedu * Id: ntfs_subr.c,v 1.4 1999/05/12 09:43:01 semenu Exp 3026f3deacStedu */ 3126f3deacStedu 3226f3deacStedu #include <sys/param.h> 3326f3deacStedu #include <sys/systm.h> 3426f3deacStedu #include <sys/namei.h> 35274476fcStedu #include <sys/proc.h> 3626f3deacStedu #include <sys/kernel.h> 3726f3deacStedu #include <sys/vnode.h> 3826f3deacStedu #include <sys/mount.h> 3926f3deacStedu #include <sys/buf.h> 4026f3deacStedu #include <sys/file.h> 4126f3deacStedu #include <sys/malloc.h> 42c74ceabfSoga #include <sys/rwlock.h> 43544451c3Sderaadt #include <sys/specdev.h> 4426f3deacStedu 4526f3deacStedu /* #define NTFS_DEBUG 1 */ 4626f3deacStedu #include <ntfs/ntfs.h> 4726f3deacStedu #include <ntfs/ntfsmount.h> 4826f3deacStedu #include <ntfs/ntfs_inode.h> 4926f3deacStedu #include <ntfs/ntfs_vfsops.h> 5026f3deacStedu #include <ntfs/ntfs_subr.h> 5126f3deacStedu #include <ntfs/ntfs_compr.h> 5226f3deacStedu #include <ntfs/ntfs_ihash.h> 5326f3deacStedu 5426f3deacStedu #if defined(NTFS_DEBUG) 5526f3deacStedu int ntfs_debug = NTFS_DEBUG; 5626f3deacStedu #endif 5726f3deacStedu 5826f3deacStedu /* Local struct used in ntfs_ntlookupfile() */ 5926f3deacStedu struct ntfs_lookup_ctx { 6026f3deacStedu u_int32_t aoff; 6126f3deacStedu u_int32_t rdsize; 6226f3deacStedu cn_t cn; 6326f3deacStedu struct ntfs_lookup_ctx *prev; 6426f3deacStedu }; 6526f3deacStedu 6605c5dae5Sjsing int ntfs_ntlookupattr(struct ntfsmount *, const char *, int, int *, char **); 6705c5dae5Sjsing int ntfs_findvattr(struct ntfsmount *, struct ntnode *, struct ntvattr **, struct ntvattr **, u_int32_t, const char *, size_t, cn_t); 6805c5dae5Sjsing int ntfs_uastricmp(struct ntfsmount *, const wchar *, size_t, const char *, size_t); 6905c5dae5Sjsing int ntfs_uastrcmp(struct ntfsmount *, const wchar *, size_t, const char *, size_t); 7026f3deacStedu 71274476fcStedu /* table for mapping Unicode chars into uppercase; it's filled upon first 72274476fcStedu * ntfs mount, freed upon last ntfs umount */ 7326f3deacStedu static wchar *ntfs_toupper_tab; 7426f3deacStedu #define NTFS_U28(ch) ((((ch) & 0xE0) == 0) ? '_' : (ch) & 0xFF) 7526f3deacStedu #define NTFS_TOUPPER(ch) (ntfs_toupper_tab[(unsigned char)(ch)]) 76274476fcStedu struct rwlock ntfs_toupper_lock = RWLOCK_INITIALIZER("ntfs_toupper"); 77274476fcStedu static signed int ntfs_toupper_usecount; 7826f3deacStedu 7926f3deacStedu /* support macro for ntfs_ntvattrget() */ 8026f3deacStedu #define NTFS_AALPCMP(aalp,type,name,namelen) ( \ 8126f3deacStedu (aalp->al_type == type) && (aalp->al_namelen == namelen) && \ 8226f3deacStedu !ntfs_uastrcmp(ntmp, aalp->al_name,aalp->al_namelen,name,namelen) ) 8326f3deacStedu 8426f3deacStedu /* 8526f3deacStedu * 8626f3deacStedu */ 8726f3deacStedu int 881cc0505dSjsing ntfs_ntvattrrele(struct ntvattr *vap) 8926f3deacStedu { 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 1021cc0505dSjsing ntfs_findvattr(struct ntfsmount *ntmp, struct ntnode *ip, 1031cc0505dSjsing struct ntvattr **lvapp, struct ntvattr **vapp, u_int32_t type, 1041cc0505dSjsing const char *name, size_t namelen, cn_t vcn) 10526f3deacStedu { 10626f3deacStedu int error; 10726f3deacStedu struct ntvattr *vap; 10826f3deacStedu 10926f3deacStedu if((ip->i_flag & IN_LOADED) == 0) { 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 } 1188fc6378aSjsing } else { 1198fc6378aSjsing /* Update LRU loaded list. */ 1208fc6378aSjsing TAILQ_REMOVE(&ntmp->ntm_ntnodeq, ip, i_loaded); 1218fc6378aSjsing TAILQ_INSERT_HEAD(&ntmp->ntm_ntnodeq, ip, i_loaded); 12226f3deacStedu } 12326f3deacStedu 12426f3deacStedu *lvapp = NULL; 12526f3deacStedu *vapp = NULL; 1261573508eSmiod LIST_FOREACH(vap, &ip->i_valist, va_list) { 12726f3deacStedu ddprintf(("ntfs_findvattr: type: 0x%x, vcn: %d - %d\n", \ 12826f3deacStedu vap->va_type, (u_int32_t) vap->va_vcnstart, \ 12926f3deacStedu (u_int32_t) vap->va_vcnend)); 13026f3deacStedu if ((vap->va_type == type) && 13126f3deacStedu (vap->va_vcnstart <= vcn) && (vap->va_vcnend >= vcn) && 13226f3deacStedu (vap->va_namelen == namelen) && 13326f3deacStedu (strncmp(name, vap->va_name, namelen) == 0)) { 13426f3deacStedu *vapp = vap; 13526f3deacStedu ntfs_ntref(vap->va_ip); 13626f3deacStedu return (0); 13726f3deacStedu } 13826f3deacStedu if (vap->va_type == NTFS_A_ATTRLIST) 13926f3deacStedu *lvapp = vap; 14026f3deacStedu } 14126f3deacStedu 14226f3deacStedu return (-1); 14326f3deacStedu } 14426f3deacStedu 14526f3deacStedu /* 14626f3deacStedu * Search attribute specified in ntnode (load ntnode if necessary). 14726f3deacStedu * If not found but ATTR_A_ATTRLIST present, read it in and search through. 148cec6d865Smiod * VOP_VGET node needed, and lookup through its ntnode (load if necessary). 14926f3deacStedu * 15026f3deacStedu * ntnode should be locked 15126f3deacStedu */ 15226f3deacStedu int 1531cc0505dSjsing ntfs_ntvattrget(struct ntfsmount *ntmp, struct ntnode *ip, u_int32_t type, 1541cc0505dSjsing const char *name, cn_t vcn, struct ntvattr **vapp) 15526f3deacStedu { 15626f3deacStedu struct ntvattr *lvap = NULL; 15726f3deacStedu struct attr_attrlist *aalp; 15826f3deacStedu struct attr_attrlist *nextaalp; 15926f3deacStedu struct vnode *newvp; 16026f3deacStedu struct ntnode *newip; 16126f3deacStedu caddr_t alpool; 16226f3deacStedu size_t namelen, len; 16326f3deacStedu int error; 16426f3deacStedu 16526f3deacStedu *vapp = NULL; 16626f3deacStedu 16726f3deacStedu if (name) { 16826f3deacStedu dprintf(("ntfs_ntvattrget: " \ 16926f3deacStedu "ino: %d, type: 0x%x, name: %s, vcn: %d\n", \ 17026f3deacStedu ip->i_number, type, name, (u_int32_t) vcn)); 17126f3deacStedu namelen = strlen(name); 17226f3deacStedu } else { 17326f3deacStedu dprintf(("ntfs_ntvattrget: " \ 17426f3deacStedu "ino: %d, type: 0x%x, vcn: %d\n", \ 17526f3deacStedu ip->i_number, type, (u_int32_t) vcn)); 17626f3deacStedu name = ""; 17726f3deacStedu namelen = 0; 17826f3deacStedu } 17926f3deacStedu 18026f3deacStedu error = ntfs_findvattr(ntmp, ip, &lvap, vapp, type, name, namelen, vcn); 18126f3deacStedu if (error >= 0) 18226f3deacStedu return (error); 18326f3deacStedu 18426f3deacStedu if (!lvap) { 18526f3deacStedu dprintf(("ntfs_ntvattrget: UNEXISTED ATTRIBUTE: " \ 18626f3deacStedu "ino: %d, type: 0x%x, name: %s, vcn: %d\n", \ 18726f3deacStedu ip->i_number, type, name, (u_int32_t) vcn)); 18826f3deacStedu return (ENOENT); 18926f3deacStedu } 19026f3deacStedu /* Scan $ATTRIBUTE_LIST for requested attribute */ 19126f3deacStedu len = lvap->va_datalen; 192c6c302e5Stedu alpool = malloc(len, M_TEMP, M_WAITOK); 19326f3deacStedu error = ntfs_readntvattr_plain(ntmp, ip, lvap, 0, len, alpool, &len, 19426f3deacStedu NULL); 19526f3deacStedu if (error) 19626f3deacStedu goto out; 19726f3deacStedu 19826f3deacStedu aalp = (struct attr_attrlist *) alpool; 19926f3deacStedu nextaalp = NULL; 20026f3deacStedu 20126f3deacStedu for(; len > 0; aalp = nextaalp) { 20226f3deacStedu dprintf(("ntfs_ntvattrget: " \ 20326f3deacStedu "attrlist: ino: %d, attr: 0x%x, vcn: %d\n", \ 20426f3deacStedu aalp->al_inumber, aalp->al_type, \ 20526f3deacStedu (u_int32_t) aalp->al_vcnstart)); 20626f3deacStedu 20726f3deacStedu if (len > aalp->reclen) { 20826f3deacStedu nextaalp = NTFS_NEXTREC(aalp, struct attr_attrlist *); 20926f3deacStedu } else { 21026f3deacStedu nextaalp = NULL; 21126f3deacStedu } 21226f3deacStedu len -= aalp->reclen; 21326f3deacStedu 21426f3deacStedu if (!NTFS_AALPCMP(aalp, type, name, namelen) || 21526f3deacStedu (nextaalp && (nextaalp->al_vcnstart <= vcn) && 21626f3deacStedu NTFS_AALPCMP(nextaalp, type, name, namelen))) 21726f3deacStedu continue; 21826f3deacStedu 21926f3deacStedu dprintf(("ntfs_ntvattrget: attribute in ino: %d\n", 22026f3deacStedu aalp->al_inumber)); 22126f3deacStedu 22226f3deacStedu /* this is not a main record, so we can't use just plain 22326f3deacStedu vget() */ 22426f3deacStedu error = ntfs_vgetex(ntmp->ntm_mountp, aalp->al_inumber, 22526f3deacStedu NTFS_A_DATA, NULL, LK_EXCLUSIVE, 22626f3deacStedu VG_EXT, curproc, &newvp); 22726f3deacStedu if (error) { 22826f3deacStedu printf("ntfs_ntvattrget: CAN'T VGET INO: %d\n", 22926f3deacStedu aalp->al_inumber); 23026f3deacStedu goto out; 23126f3deacStedu } 23226f3deacStedu newip = VTONT(newvp); 23326f3deacStedu /* XXX have to lock ntnode */ 23426f3deacStedu error = ntfs_findvattr(ntmp, newip, &lvap, vapp, 23526f3deacStedu type, name, namelen, vcn); 23626f3deacStedu vput(newvp); 23726f3deacStedu if (error == 0) 23826f3deacStedu goto out; 23926f3deacStedu printf("ntfs_ntvattrget: ATTRLIST ERROR.\n"); 24026f3deacStedu break; 24126f3deacStedu } 24226f3deacStedu error = ENOENT; 24326f3deacStedu 24426f3deacStedu dprintf(("ntfs_ntvattrget: UNEXISTED ATTRIBUTE: " \ 24526f3deacStedu "ino: %d, type: 0x%x, name: %.*s, vcn: %d\n", \ 24626f3deacStedu ip->i_number, type, (int) namelen, name, (u_int32_t) vcn)); 24726f3deacStedu out: 24826f3deacStedu free(alpool, M_TEMP); 24926f3deacStedu return (error); 25026f3deacStedu } 25126f3deacStedu 25226f3deacStedu /* 25326f3deacStedu * Read ntnode from disk, make ntvattr list. 25426f3deacStedu * 25526f3deacStedu * ntnode should be locked 25626f3deacStedu */ 25726f3deacStedu int 2581cc0505dSjsing ntfs_loadntnode(struct ntfsmount *ntmp, struct ntnode *ip) 25926f3deacStedu { 2608fc6378aSjsing struct ntnode *oip; 2618fc6378aSjsing struct ntvattr *vap; 26226f3deacStedu struct filerec *mfrp; 2638fc6378aSjsing struct attr *ap; 264*1abdbfdeSderaadt daddr_t bn; 26526f3deacStedu int error,off; 26626f3deacStedu 26726f3deacStedu dprintf(("ntfs_loadntnode: loading ino: %d\n",ip->i_number)); 26826f3deacStedu 2698fc6378aSjsing KASSERT((ip->i_flag & IN_LOADED) == 0); 2708fc6378aSjsing 2718fc6378aSjsing if (ntmp->ntm_ntnodes >= LOADED_NTNODE_HI) { 2728fc6378aSjsing oip = TAILQ_LAST(&ntmp->ntm_ntnodeq, ntnodeq); 2738fc6378aSjsing TAILQ_REMOVE(&ntmp->ntm_ntnodeq, oip, i_loaded); 2748fc6378aSjsing ntmp->ntm_ntnodes--; 2758fc6378aSjsing 2768fc6378aSjsing dprintf(("ntfs_loadntnode: unloading ino: %d\n", 2778fc6378aSjsing oip->i_number)); 2788fc6378aSjsing 2798fc6378aSjsing KASSERT((oip->i_flag & IN_LOADED)); 2808fc6378aSjsing oip->i_flag &= ~IN_LOADED; 2818fc6378aSjsing while ((vap = LIST_FIRST(&oip->i_valist)) != NULL) { 2828fc6378aSjsing LIST_REMOVE(vap, va_list); 2838fc6378aSjsing ntfs_freentvattr(vap); 2848fc6378aSjsing } 2858fc6378aSjsing } 2868fc6378aSjsing 287c6c302e5Stedu mfrp = malloc(ntfs_bntob(ntmp->ntm_bpmftrec), M_TEMP, M_WAITOK); 28826f3deacStedu 28926f3deacStedu if (ip->i_number < NTFS_SYSNODESNUM) { 29026f3deacStedu struct buf *bp; 29126f3deacStedu 29226f3deacStedu dprintf(("ntfs_loadntnode: read system node\n")); 29326f3deacStedu 29426f3deacStedu bn = ntfs_cntobn(ntmp->ntm_mftcn) + 29526f3deacStedu ntmp->ntm_bpmftrec * ip->i_number; 29626f3deacStedu 29793f62a9eStedu error = bread(ntmp->ntm_devvp, bn, 29893f62a9eStedu ntfs_bntob(ntmp->ntm_bpmftrec), &bp); 29926f3deacStedu if (error) { 30026f3deacStedu printf("ntfs_loadntnode: BREAD FAILED\n"); 30126f3deacStedu brelse(bp); 30226f3deacStedu goto out; 30326f3deacStedu } 30426f3deacStedu memcpy(mfrp, bp->b_data, ntfs_bntob(ntmp->ntm_bpmftrec)); 305c6c302e5Stedu brelse(bp); 30626f3deacStedu } else { 30726f3deacStedu struct vnode *vp; 30826f3deacStedu 30926f3deacStedu vp = ntmp->ntm_sysvn[NTFS_MFTINO]; 31026f3deacStedu error = ntfs_readattr(ntmp, VTONT(vp), NTFS_A_DATA, NULL, 31126f3deacStedu ip->i_number * ntfs_bntob(ntmp->ntm_bpmftrec), 31226f3deacStedu ntfs_bntob(ntmp->ntm_bpmftrec), mfrp, NULL); 31326f3deacStedu if (error) { 31426f3deacStedu printf("ntfs_loadntnode: ntfs_readattr failed\n"); 31526f3deacStedu goto out; 31626f3deacStedu } 31726f3deacStedu } 31826f3deacStedu 31926f3deacStedu /* Check if magic and fixups are correct */ 32026f3deacStedu error = ntfs_procfixups(ntmp, NTFS_FILEMAGIC, (caddr_t)mfrp, 32126f3deacStedu ntfs_bntob(ntmp->ntm_bpmftrec)); 32226f3deacStedu if (error) { 32326f3deacStedu printf("ntfs_loadntnode: BAD MFT RECORD %d\n", 32426f3deacStedu (u_int32_t) ip->i_number); 32526f3deacStedu goto out; 32626f3deacStedu } 32726f3deacStedu 32826f3deacStedu dprintf(("ntfs_loadntnode: load attrs for ino: %d\n",ip->i_number)); 32926f3deacStedu off = mfrp->fr_attroff; 33026f3deacStedu ap = (struct attr *) ((caddr_t)mfrp + off); 33126f3deacStedu 33226f3deacStedu LIST_INIT(&ip->i_valist); 33326f3deacStedu 33426f3deacStedu while (ap->a_hdr.a_type != -1) { 3358fc6378aSjsing error = ntfs_attrtontvattr(ntmp, &vap, ap); 33626f3deacStedu if (error) 33726f3deacStedu break; 3388fc6378aSjsing vap->va_ip = ip; 33926f3deacStedu 3408fc6378aSjsing LIST_INSERT_HEAD(&ip->i_valist, vap, va_list); 34126f3deacStedu 34226f3deacStedu off += ap->a_hdr.reclen; 34326f3deacStedu ap = (struct attr *) ((caddr_t)mfrp + off); 34426f3deacStedu } 34526f3deacStedu if (error) { 34626f3deacStedu printf("ntfs_loadntnode: failed to load attr ino: %d\n", 34726f3deacStedu ip->i_number); 34826f3deacStedu goto out; 34926f3deacStedu } 35026f3deacStedu 35126f3deacStedu ip->i_mainrec = mfrp->fr_mainrec; 35226f3deacStedu ip->i_nlink = mfrp->fr_nlink; 35326f3deacStedu ip->i_frflag = mfrp->fr_flags; 35426f3deacStedu 35526f3deacStedu ip->i_flag |= IN_LOADED; 35626f3deacStedu 3578fc6378aSjsing /* Add to loaded list. */ 3588fc6378aSjsing TAILQ_INSERT_HEAD(&ntmp->ntm_ntnodeq, ip, i_loaded); 3598fc6378aSjsing ntmp->ntm_ntnodes++; 3608fc6378aSjsing 36126f3deacStedu out: 36226f3deacStedu free(mfrp, M_TEMP); 36326f3deacStedu return (error); 36426f3deacStedu } 36526f3deacStedu 36626f3deacStedu /* 36726f3deacStedu * Routine locks ntnode and increase usecount, just opposite of 36826f3deacStedu * ntfs_ntput(). 36926f3deacStedu */ 37026f3deacStedu int 3711cc0505dSjsing ntfs_ntget(struct ntnode *ip, struct proc *p) 37226f3deacStedu { 37326f3deacStedu dprintf(("ntfs_ntget: get ntnode %d: %p, usecount: %d\n", 37426f3deacStedu ip->i_number, ip, ip->i_usecount)); 37526f3deacStedu 37626f3deacStedu ip->i_usecount++; 3772752fedbSpedro 378c74ceabfSoga rw_enter_write(&ip->i_lock); 37926f3deacStedu 38026f3deacStedu return 0; 38126f3deacStedu } 38226f3deacStedu 38326f3deacStedu /* 38426f3deacStedu * Routine search ntnode in hash, if found: lock, inc usecount and return. 38526f3deacStedu * If not in hash allocate structure for ntnode, prefill it, lock, 38626f3deacStedu * inc count and return. 38726f3deacStedu * 38826f3deacStedu * ntnode returned locked 38926f3deacStedu */ 39026f3deacStedu int 39195a73601Sguenther ntfs_ntlookup(struct ntfsmount *ntmp, ntfsino_t ino, struct ntnode **ipp, 39226f3deacStedu struct proc *p) 39326f3deacStedu { 39426f3deacStedu struct ntnode *ip; 39526f3deacStedu 39626f3deacStedu dprintf(("ntfs_ntlookup: looking for ntnode %d\n", ino)); 39726f3deacStedu 39826f3deacStedu do { 39926f3deacStedu if ((ip = ntfs_nthashlookup(ntmp->ntm_dev, ino)) != NULL) { 40026f3deacStedu ntfs_ntget(ip, p); 40126f3deacStedu dprintf(("ntfs_ntlookup: ntnode %d: %p, usecount: %d\n", 40226f3deacStedu ino, ip, ip->i_usecount)); 40326f3deacStedu *ipp = ip; 40426f3deacStedu return (0); 40526f3deacStedu } 406c74ceabfSoga } while (rw_enter(&ntfs_hashlock, RW_WRITE | RW_SLEEPFAIL)); 40726f3deacStedu 408c86f0003Skrw ip = malloc(sizeof(*ip), M_NTFSNTNODE, M_WAITOK | M_ZERO); 40926f3deacStedu ddprintf(("ntfs_ntlookup: allocating ntnode: %d: %p\n", ino, ip)); 41026f3deacStedu 41126f3deacStedu /* Generic initialization */ 41226f3deacStedu ip->i_devvp = ntmp->ntm_devvp; 41326f3deacStedu ip->i_dev = ntmp->ntm_dev; 41426f3deacStedu ip->i_number = ino; 41526f3deacStedu ip->i_mp = ntmp; 41626f3deacStedu 41726f3deacStedu LIST_INIT(&ip->i_fnlist); 418627b2c48Sthib vref(ip->i_devvp); 41926f3deacStedu 42026f3deacStedu /* init lock and lock the newborn ntnode */ 421c74ceabfSoga rw_init(&ip->i_lock, "ntnode"); 42226f3deacStedu ntfs_ntget(ip, p); 42326f3deacStedu 42426f3deacStedu ntfs_nthashins(ip); 42526f3deacStedu 426c74ceabfSoga rw_exit(&ntfs_hashlock); 42726f3deacStedu 42826f3deacStedu *ipp = ip; 42926f3deacStedu 43026f3deacStedu dprintf(("ntfs_ntlookup: ntnode %d: %p, usecount: %d\n", 43126f3deacStedu ino, ip, ip->i_usecount)); 43226f3deacStedu 43326f3deacStedu return (0); 43426f3deacStedu } 43526f3deacStedu 43626f3deacStedu /* 43726f3deacStedu * Decrement usecount of ntnode and unlock it, if usecount reach zero, 43826f3deacStedu * deallocate ntnode. 43926f3deacStedu * 44026f3deacStedu * ntnode should be locked on entry, and unlocked on return. 44126f3deacStedu */ 44226f3deacStedu void 4431cc0505dSjsing ntfs_ntput(struct ntnode *ip, struct proc *p) 44426f3deacStedu { 4458fc6378aSjsing struct ntfsmount *ntmp = ip->i_mp; 44626f3deacStedu struct ntvattr *vap; 44726f3deacStedu 44826f3deacStedu dprintf(("ntfs_ntput: rele ntnode %d: %p, usecount: %d\n", 44926f3deacStedu ip->i_number, ip, ip->i_usecount)); 45026f3deacStedu 45126f3deacStedu ip->i_usecount--; 45226f3deacStedu 45326f3deacStedu #ifdef DIAGNOSTIC 45426f3deacStedu if (ip->i_usecount < 0) { 45526f3deacStedu panic("ntfs_ntput: ino: %d usecount: %d ", 45626f3deacStedu ip->i_number,ip->i_usecount); 45726f3deacStedu } 45826f3deacStedu #endif 45926f3deacStedu 4609b32ea3cSpat if (ip->i_usecount > 0) { 461c74ceabfSoga rw_exit_write(&ip->i_lock); 4629b32ea3cSpat return; 4639b32ea3cSpat } 46426f3deacStedu 4659b32ea3cSpat dprintf(("ntfs_ntput: deallocating ntnode: %d\n", ip->i_number)); 46626f3deacStedu 4679b32ea3cSpat if (LIST_FIRST(&ip->i_fnlist)) 46826f3deacStedu panic("ntfs_ntput: ntnode has fnodes"); 46926f3deacStedu 47026f3deacStedu ntfs_nthashrem(ip); 47126f3deacStedu 4728fc6378aSjsing /* Remove from loaded list. */ 4738fc6378aSjsing if (ip->i_flag & IN_LOADED) { 4748fc6378aSjsing TAILQ_REMOVE(&ntmp->ntm_ntnodeq, ip, i_loaded); 4758fc6378aSjsing ntmp->ntm_ntnodes--; 4768fc6378aSjsing } 4778fc6378aSjsing 4789b32ea3cSpat while ((vap = LIST_FIRST(&ip->i_valist)) != NULL) { 47926f3deacStedu LIST_REMOVE(vap, va_list); 48026f3deacStedu ntfs_freentvattr(vap); 48126f3deacStedu } 4829b32ea3cSpat 4839b32ea3cSpat vrele(ip->i_devvp); 4842f33a180Skrw free(ip, M_NTFSNTNODE); 48526f3deacStedu } 48626f3deacStedu 48726f3deacStedu /* 48826f3deacStedu * increment usecount of ntnode 48926f3deacStedu */ 49026f3deacStedu void 4911cc0505dSjsing ntfs_ntref(struct ntnode *ip) 49226f3deacStedu { 49326f3deacStedu ip->i_usecount++; 49426f3deacStedu 49526f3deacStedu dprintf(("ntfs_ntref: ino %d, usecount: %d\n", 49626f3deacStedu ip->i_number, ip->i_usecount)); 49726f3deacStedu 49826f3deacStedu } 49926f3deacStedu 50026f3deacStedu /* 50126f3deacStedu * Decrement usecount of ntnode. 50226f3deacStedu */ 50326f3deacStedu void 5041cc0505dSjsing ntfs_ntrele(struct ntnode *ip) 50526f3deacStedu { 50626f3deacStedu dprintf(("ntfs_ntrele: rele ntnode %d: %p, usecount: %d\n", 50726f3deacStedu ip->i_number, ip, ip->i_usecount)); 50826f3deacStedu 50926f3deacStedu ip->i_usecount--; 51026f3deacStedu 51126f3deacStedu if (ip->i_usecount < 0) 51226f3deacStedu panic("ntfs_ntrele: ino: %d usecount: %d ", 51326f3deacStedu ip->i_number,ip->i_usecount); 51426f3deacStedu } 51526f3deacStedu 51626f3deacStedu /* 51726f3deacStedu * Deallocate all memory allocated for ntvattr 51826f3deacStedu */ 51926f3deacStedu void 5201cc0505dSjsing ntfs_freentvattr(struct ntvattr *vap) 52126f3deacStedu { 52226f3deacStedu if (vap->va_flag & NTFS_AF_INRUN) { 52326f3deacStedu if (vap->va_vruncn) 52426f3deacStedu free(vap->va_vruncn, M_NTFSRUN); 52526f3deacStedu if (vap->va_vruncl) 52626f3deacStedu free(vap->va_vruncl, M_NTFSRUN); 52726f3deacStedu } else { 52826f3deacStedu if (vap->va_datap) 52926f3deacStedu free(vap->va_datap, M_NTFSRDATA); 53026f3deacStedu } 5312f33a180Skrw free(vap, M_NTFSNTVATTR); 53226f3deacStedu } 53326f3deacStedu 53426f3deacStedu /* 53526f3deacStedu * Convert disk image of attribute into ntvattr structure, 53626f3deacStedu * runs are expanded also. 53726f3deacStedu */ 53826f3deacStedu int 5391cc0505dSjsing ntfs_attrtontvattr(struct ntfsmount *ntmp, struct ntvattr **rvapp, 54026f3deacStedu struct attr *rap) 54126f3deacStedu { 54226f3deacStedu int error, i; 54326f3deacStedu struct ntvattr *vap; 54426f3deacStedu 54526f3deacStedu error = 0; 54626f3deacStedu *rvapp = NULL; 54726f3deacStedu 548c86f0003Skrw vap = malloc(sizeof(*vap), M_NTFSNTVATTR, M_WAITOK | M_ZERO); 54926f3deacStedu vap->va_ip = NULL; 55026f3deacStedu vap->va_flag = rap->a_hdr.a_flag; 55126f3deacStedu vap->va_type = rap->a_hdr.a_type; 55226f3deacStedu vap->va_compression = rap->a_hdr.a_compression; 55326f3deacStedu vap->va_index = rap->a_hdr.a_index; 55426f3deacStedu 55526f3deacStedu ddprintf(("type: 0x%x, index: %d", vap->va_type, vap->va_index)); 55626f3deacStedu 55726f3deacStedu vap->va_namelen = rap->a_hdr.a_namelen; 55826f3deacStedu if (rap->a_hdr.a_namelen) { 55926f3deacStedu wchar *unp = (wchar *) ((caddr_t) rap + rap->a_hdr.a_nameoff); 56026f3deacStedu ddprintf((", name:[")); 56126f3deacStedu for (i = 0; i < vap->va_namelen; i++) { 56226f3deacStedu vap->va_name[i] = unp[i]; 56326f3deacStedu ddprintf(("%c", vap->va_name[i])); 56426f3deacStedu } 56526f3deacStedu ddprintf(("]")); 56626f3deacStedu } 56726f3deacStedu if (vap->va_flag & NTFS_AF_INRUN) { 56826f3deacStedu ddprintf((", nonres.")); 56926f3deacStedu vap->va_datalen = rap->a_nr.a_datalen; 57026f3deacStedu vap->va_allocated = rap->a_nr.a_allocated; 57126f3deacStedu vap->va_vcnstart = rap->a_nr.a_vcnstart; 57226f3deacStedu vap->va_vcnend = rap->a_nr.a_vcnend; 57326f3deacStedu vap->va_compressalg = rap->a_nr.a_compressalg; 57426f3deacStedu error = ntfs_runtovrun(&(vap->va_vruncn), &(vap->va_vruncl), 57526f3deacStedu &(vap->va_vruncnt), 57626f3deacStedu (caddr_t) rap + rap->a_nr.a_dataoff); 57726f3deacStedu } else { 57826f3deacStedu vap->va_compressalg = 0; 57926f3deacStedu ddprintf((", res.")); 58026f3deacStedu vap->va_datalen = rap->a_r.a_datalen; 58126f3deacStedu vap->va_allocated = rap->a_r.a_datalen; 58226f3deacStedu vap->va_vcnstart = 0; 58326f3deacStedu vap->va_vcnend = ntfs_btocn(vap->va_allocated); 584c6c302e5Stedu vap->va_datap = malloc(vap->va_datalen, M_NTFSRDATA, M_WAITOK); 58526f3deacStedu memcpy(vap->va_datap, (caddr_t) rap + rap->a_r.a_dataoff, 58626f3deacStedu rap->a_r.a_datalen); 58726f3deacStedu } 58826f3deacStedu ddprintf((", len: %d", vap->va_datalen)); 58926f3deacStedu 59026f3deacStedu if (error) 5912f33a180Skrw free(vap, M_NTFSNTVATTR); 59226f3deacStedu else 59326f3deacStedu *rvapp = vap; 59426f3deacStedu 59526f3deacStedu ddprintf(("\n")); 59626f3deacStedu 59726f3deacStedu return (error); 59826f3deacStedu } 59926f3deacStedu 60026f3deacStedu /* 60126f3deacStedu * Expand run into more utilizable and more memory eating format. 60226f3deacStedu */ 60326f3deacStedu int 6041cc0505dSjsing ntfs_runtovrun(cn_t **rcnp, cn_t **rclp, u_long *rcntp, u_int8_t *run) 60526f3deacStedu { 60626f3deacStedu u_int32_t off; 60726f3deacStedu u_int32_t sz, i; 60826f3deacStedu cn_t *cn; 60926f3deacStedu cn_t *cl; 61026f3deacStedu u_long cnt; 61126f3deacStedu cn_t prev; 61226f3deacStedu cn_t tmp; 61326f3deacStedu 61426f3deacStedu off = 0; 61526f3deacStedu cnt = 0; 61626f3deacStedu i = 0; 61726f3deacStedu while (run[off]) { 61826f3deacStedu off += (run[off] & 0xF) + ((run[off] >> 4) & 0xF) + 1; 61926f3deacStedu cnt++; 62026f3deacStedu } 621c6c302e5Stedu cn = malloc(cnt * sizeof(cn_t), M_NTFSRUN, M_WAITOK); 622c6c302e5Stedu cl = malloc(cnt * sizeof(cn_t), M_NTFSRUN, M_WAITOK); 62326f3deacStedu 62426f3deacStedu off = 0; 62526f3deacStedu cnt = 0; 62626f3deacStedu prev = 0; 62726f3deacStedu while (run[off]) { 62826f3deacStedu 62926f3deacStedu sz = run[off++]; 63026f3deacStedu cl[cnt] = 0; 63126f3deacStedu 63226f3deacStedu for (i = 0; i < (sz & 0xF); i++) 63326f3deacStedu cl[cnt] += (u_int32_t) run[off++] << (i << 3); 63426f3deacStedu 63526f3deacStedu sz >>= 4; 63626f3deacStedu if (run[off + sz - 1] & 0x80) { 63726f3deacStedu tmp = ((u_int64_t) - 1) << (sz << 3); 63826f3deacStedu for (i = 0; i < sz; i++) 63926f3deacStedu tmp |= (u_int64_t) run[off++] << (i << 3); 64026f3deacStedu } else { 64126f3deacStedu tmp = 0; 64226f3deacStedu for (i = 0; i < sz; i++) 64326f3deacStedu tmp |= (u_int64_t) run[off++] << (i << 3); 64426f3deacStedu } 64526f3deacStedu if (tmp) 64626f3deacStedu prev = cn[cnt] = prev + tmp; 64726f3deacStedu else 64826f3deacStedu cn[cnt] = tmp; 64926f3deacStedu 65026f3deacStedu cnt++; 65126f3deacStedu } 65226f3deacStedu *rcnp = cn; 65326f3deacStedu *rclp = cl; 65426f3deacStedu *rcntp = cnt; 65526f3deacStedu return (0); 65626f3deacStedu } 65726f3deacStedu 65826f3deacStedu /* 65926f3deacStedu * Compare unicode and ascii string case insens. 66026f3deacStedu */ 66105c5dae5Sjsing int 6621cc0505dSjsing ntfs_uastricmp(struct ntfsmount *ntmp, const wchar *ustr, size_t ustrlen, 6631cc0505dSjsing const char *astr, size_t astrlen) 66426f3deacStedu { 66526f3deacStedu size_t i; 66626f3deacStedu int res; 66726f3deacStedu const char *astrend = astr + astrlen; 66826f3deacStedu 66926f3deacStedu for (i = 0; i < ustrlen && astr < astrend; i++) { 67026f3deacStedu res = (*ntmp->ntm_wcmp)(NTFS_TOUPPER(ustr[i]), 67126f3deacStedu NTFS_TOUPPER((*ntmp->ntm_wget)(&astr)) ); 67226f3deacStedu if (res) 67326f3deacStedu return res; 67426f3deacStedu } 67526f3deacStedu 67626f3deacStedu if (i == ustrlen && astr == astrend) 67726f3deacStedu return 0; 67826f3deacStedu else if (i == ustrlen) 67926f3deacStedu return -1; 68026f3deacStedu else 68126f3deacStedu return 1; 68226f3deacStedu } 68326f3deacStedu 68426f3deacStedu /* 68526f3deacStedu * Compare unicode and ascii string case sens. 68626f3deacStedu */ 68705c5dae5Sjsing int 6881cc0505dSjsing ntfs_uastrcmp(struct ntfsmount *ntmp, const wchar *ustr, size_t ustrlen, 6891cc0505dSjsing const char *astr, size_t astrlen) 69026f3deacStedu { 69126f3deacStedu size_t i; 69226f3deacStedu int res; 69326f3deacStedu const char *astrend = astr + astrlen; 69426f3deacStedu 69526f3deacStedu for (i = 0; (i < ustrlen) && (astr < astrend); i++) { 69626f3deacStedu res = (*ntmp->ntm_wcmp)(ustr[i], (*ntmp->ntm_wget)(&astr)); 69726f3deacStedu if (res) 69826f3deacStedu return res; 69926f3deacStedu } 70026f3deacStedu 70126f3deacStedu if (i == ustrlen && astr == astrend) 70226f3deacStedu return 0; 70326f3deacStedu else if (i == ustrlen) 70426f3deacStedu return -1; 70526f3deacStedu else 70626f3deacStedu return 1; 70726f3deacStedu } 70826f3deacStedu 70926f3deacStedu /* 71026f3deacStedu * Search fnode in ntnode, if not found allocate and preinitialize. 71126f3deacStedu * 71226f3deacStedu * ntnode should be locked on entry. 71326f3deacStedu */ 71426f3deacStedu int 7151cc0505dSjsing ntfs_fget(struct ntfsmount *ntmp, struct ntnode *ip, int attrtype, 7161cc0505dSjsing char *attrname, struct fnode **fpp) 71726f3deacStedu { 71826f3deacStedu struct fnode *fp; 71926f3deacStedu 72026f3deacStedu dprintf(("ntfs_fget: ino: %d, attrtype: 0x%x, attrname: %s\n", 72126f3deacStedu ip->i_number,attrtype, attrname?attrname:"")); 72226f3deacStedu *fpp = NULL; 7231573508eSmiod LIST_FOREACH(fp, &ip->i_fnlist, f_fnlist) { 72426f3deacStedu dprintf(("ntfs_fget: fnode: attrtype: %d, attrname: %s\n", 72526f3deacStedu fp->f_attrtype, fp->f_attrname?fp->f_attrname:"")); 72626f3deacStedu 72726f3deacStedu if ((attrtype == fp->f_attrtype) && 72826f3deacStedu ((!attrname && !fp->f_attrname) || 72926f3deacStedu (attrname && fp->f_attrname && 73026f3deacStedu !strcmp(attrname,fp->f_attrname)))){ 73126f3deacStedu dprintf(("ntfs_fget: found existed: %p\n",fp)); 73226f3deacStedu *fpp = fp; 73326f3deacStedu } 73426f3deacStedu } 73526f3deacStedu 73626f3deacStedu if (*fpp) 73726f3deacStedu return (0); 73826f3deacStedu 739c86f0003Skrw fp = malloc(sizeof(*fp), M_NTFSFNODE, M_WAITOK | M_ZERO); 74026f3deacStedu dprintf(("ntfs_fget: allocating fnode: %p\n",fp)); 74126f3deacStedu 74226f3deacStedu fp->f_ip = ip; 74326f3deacStedu fp->f_attrname = attrname; 74426f3deacStedu if (fp->f_attrname) fp->f_flag |= FN_AATTRNAME; 74526f3deacStedu fp->f_attrtype = attrtype; 74626f3deacStedu 74726f3deacStedu ntfs_ntref(ip); 74826f3deacStedu 74926f3deacStedu LIST_INSERT_HEAD(&ip->i_fnlist, fp, f_fnlist); 75026f3deacStedu 75126f3deacStedu *fpp = fp; 75226f3deacStedu 75326f3deacStedu return (0); 75426f3deacStedu } 75526f3deacStedu 75626f3deacStedu /* 75726f3deacStedu * Deallocate fnode, remove it from ntnode's fnode list. 75826f3deacStedu * 75926f3deacStedu * ntnode should be locked. 76026f3deacStedu */ 76126f3deacStedu void 7621cc0505dSjsing ntfs_frele(struct fnode *fp) 76326f3deacStedu { 76426f3deacStedu struct ntnode *ip = FTONT(fp); 76526f3deacStedu 76626f3deacStedu dprintf(("ntfs_frele: fnode: %p for %d: %p\n", fp, ip->i_number, ip)); 76726f3deacStedu 76826f3deacStedu dprintf(("ntfs_frele: deallocating fnode\n")); 76926f3deacStedu LIST_REMOVE(fp,f_fnlist); 77026f3deacStedu if (fp->f_flag & FN_AATTRNAME) 771e8821f89Shshoexer free(fp->f_attrname, M_TEMP); 77226f3deacStedu if (fp->f_dirblbuf) 773e8821f89Shshoexer free(fp->f_dirblbuf, M_NTFSDIR); 7742f33a180Skrw free(fp, M_NTFSFNODE); 77526f3deacStedu ntfs_ntrele(ip); 77626f3deacStedu } 77726f3deacStedu 77826f3deacStedu /* 77926f3deacStedu * Lookup attribute name in format: [[:$ATTR_TYPE]:$ATTR_NAME], 78026f3deacStedu * $ATTR_TYPE is searched in attrdefs read from $AttrDefs. 78126f3deacStedu * If $ATTR_TYPE not specified, ATTR_A_DATA assumed. 78226f3deacStedu */ 78305c5dae5Sjsing int 7841cc0505dSjsing ntfs_ntlookupattr(struct ntfsmount *ntmp, const char *name, int namelen, 7851cc0505dSjsing int *attrtype, char **attrname) 78626f3deacStedu { 78726f3deacStedu const char *sys; 78826f3deacStedu size_t syslen, i; 78926f3deacStedu struct ntvattrdef *adp; 79026f3deacStedu 79126f3deacStedu if (namelen == 0) 79226f3deacStedu return (0); 79326f3deacStedu 79426f3deacStedu if (name[0] == '$') { 79526f3deacStedu sys = name; 79626f3deacStedu for (syslen = 0; syslen < namelen; syslen++) { 79726f3deacStedu if(sys[syslen] == ':') { 79826f3deacStedu name++; 79926f3deacStedu namelen--; 80026f3deacStedu break; 80126f3deacStedu } 80226f3deacStedu } 80326f3deacStedu name += syslen; 80426f3deacStedu namelen -= syslen; 80526f3deacStedu 80626f3deacStedu adp = ntmp->ntm_ad; 80726f3deacStedu for (i = 0; i < ntmp->ntm_adnum; i++, adp++){ 80826f3deacStedu if (syslen != adp->ad_namelen || 80926f3deacStedu strncmp(sys, adp->ad_name, syslen) != 0) 81026f3deacStedu continue; 81126f3deacStedu 81226f3deacStedu *attrtype = adp->ad_type; 81326f3deacStedu goto out; 81426f3deacStedu } 81526f3deacStedu return (ENOENT); 81626f3deacStedu } 81726f3deacStedu 81826f3deacStedu out: 81926f3deacStedu if (namelen) { 820c6c302e5Stedu *attrname = malloc(namelen + 1, M_TEMP, M_WAITOK); 821c6c302e5Stedu memcpy(*attrname, name, namelen); 82226f3deacStedu (*attrname)[namelen] = '\0'; 82326f3deacStedu *attrtype = NTFS_A_DATA; 82426f3deacStedu } 82526f3deacStedu 82626f3deacStedu return (0); 82726f3deacStedu } 82826f3deacStedu 82926f3deacStedu /* 8301cc0505dSjsing * Lookup specified node for filename, matching cnp, return fnode filled. 83126f3deacStedu */ 83226f3deacStedu int 8331cc0505dSjsing ntfs_ntlookupfile(struct ntfsmount *ntmp, struct vnode *vp, 8341cc0505dSjsing struct componentname *cnp, struct vnode **vpp, struct proc *p) 83526f3deacStedu { 83626f3deacStedu struct fnode *fp = VTOF(vp); 83726f3deacStedu struct ntnode *ip = FTONT(fp); 8386f6d0059Sjsing struct ntvattr *vap = NULL; /* Root attribute */ 83926f3deacStedu cn_t cn = 0; /* VCN in current attribute */ 8406f6d0059Sjsing caddr_t rdbuf = NULL; /* Buffer to read directory's blocks */ 84126f3deacStedu u_int32_t blsize; 84226f3deacStedu u_int32_t rdsize; /* Length of data to read from current block */ 84326f3deacStedu struct attr_indexentry *iep; 84426f3deacStedu int error, res, anamelen, fnamelen; 84526f3deacStedu const char *fname,*aname; 84626f3deacStedu u_int32_t aoff; 84726f3deacStedu int attrtype = NTFS_A_DATA; 84826f3deacStedu char *attrname = NULL; 84926f3deacStedu struct fnode *nfp; 85026f3deacStedu struct vnode *nvp; 85126f3deacStedu enum vtype f_type; 85226f3deacStedu int fullscan = 0; 85326f3deacStedu struct ntfs_lookup_ctx *lookup_ctx = NULL, *tctx; 85426f3deacStedu 85526f3deacStedu error = ntfs_ntget(ip, p); 85626f3deacStedu if (error) 85726f3deacStedu return (error); 85826f3deacStedu 85926f3deacStedu error = ntfs_ntvattrget(ntmp, ip, NTFS_A_INDXROOT, "$I30", 0, &vap); 8606f6d0059Sjsing if (error || (vap->va_flag & NTFS_AF_INRUN)) { 8616f6d0059Sjsing error = ENOTDIR; 8626f6d0059Sjsing goto fail; 8636f6d0059Sjsing } 86426f3deacStedu 86526f3deacStedu /* 86626f3deacStedu * Divide file name into: foofilefoofilefoofile[:attrspec] 86726f3deacStedu * Store like this: fname:fnamelen [aname:anamelen] 86826f3deacStedu */ 86926f3deacStedu fname = cnp->cn_nameptr; 87026f3deacStedu aname = NULL; 87126f3deacStedu anamelen = 0; 87226f3deacStedu for (fnamelen = 0; fnamelen < cnp->cn_namelen; fnamelen++) 87326f3deacStedu if(fname[fnamelen] == ':') { 87426f3deacStedu aname = fname + fnamelen + 1; 87526f3deacStedu anamelen = cnp->cn_namelen - fnamelen - 1; 87626f3deacStedu dprintf(("ntfs_ntlookupfile: %s (%d), attr: %s (%d)\n", 87726f3deacStedu fname, fnamelen, aname, anamelen)); 87826f3deacStedu break; 87926f3deacStedu } 88026f3deacStedu 88126f3deacStedu blsize = vap->va_a_iroot->ir_size; 88226f3deacStedu dprintf(("ntfs_ntlookupfile: blksz: %d\n", blsize)); 88326f3deacStedu 884c6c302e5Stedu rdbuf = malloc(blsize, M_TEMP, M_WAITOK); 88526f3deacStedu 88626f3deacStedu loop: 88726f3deacStedu rdsize = vap->va_datalen; 88826f3deacStedu dprintf(("ntfs_ntlookupfile: rdsz: %d\n", rdsize)); 88926f3deacStedu 89026f3deacStedu error = ntfs_readattr(ntmp, ip, NTFS_A_INDXROOT, "$I30", 89126f3deacStedu 0, rdsize, rdbuf, NULL); 89226f3deacStedu if (error) 89326f3deacStedu goto fail; 89426f3deacStedu 89526f3deacStedu aoff = sizeof(struct attr_indexroot); 89626f3deacStedu 89726f3deacStedu do { 89826f3deacStedu iep = (struct attr_indexentry *) (rdbuf + aoff); 89926f3deacStedu 90026f3deacStedu for (; !(iep->ie_flag & NTFS_IEFLAG_LAST) && (rdsize > aoff); 90126f3deacStedu aoff += iep->reclen, 90226f3deacStedu iep = (struct attr_indexentry *) (rdbuf + aoff)) 90326f3deacStedu { 90426f3deacStedu ddprintf(("scan: %d, %d\n", 90526f3deacStedu (u_int32_t) iep->ie_number, 90626f3deacStedu (u_int32_t) iep->ie_fnametype)); 90726f3deacStedu 90826f3deacStedu /* check the name - the case-insensitive check 90926f3deacStedu * has to come first, to break from this for loop 91026f3deacStedu * if needed, so we can dive correctly */ 91126f3deacStedu res = ntfs_uastricmp(ntmp, iep->ie_fname, 91226f3deacStedu iep->ie_fnamelen, fname, fnamelen); 91326f3deacStedu if (!fullscan) { 91426f3deacStedu if (res > 0) break; 91526f3deacStedu if (res < 0) continue; 91626f3deacStedu } 91726f3deacStedu 91826f3deacStedu if (iep->ie_fnametype == 0 || 91926f3deacStedu !(ntmp->ntm_flag & NTFS_MFLAG_CASEINS)) 92026f3deacStedu { 92126f3deacStedu res = ntfs_uastrcmp(ntmp, iep->ie_fname, 92226f3deacStedu iep->ie_fnamelen, fname, fnamelen); 92326f3deacStedu if (res != 0 && !fullscan) continue; 92426f3deacStedu } 92526f3deacStedu 92626f3deacStedu /* if we perform full scan, the file does not match 92726f3deacStedu * and this is subnode, dive */ 92826f3deacStedu if (fullscan && res != 0) { 92926f3deacStedu if (iep->ie_flag & NTFS_IEFLAG_SUBNODE) { 930e8821f89Shshoexer tctx = malloc(sizeof(struct ntfs_lookup_ctx), 93126f3deacStedu M_TEMP, M_WAITOK); 93226f3deacStedu tctx->aoff = aoff + iep->reclen; 93326f3deacStedu tctx->rdsize = rdsize; 93426f3deacStedu tctx->cn = cn; 93526f3deacStedu tctx->prev = lookup_ctx; 93626f3deacStedu lookup_ctx = tctx; 93726f3deacStedu break; 93826f3deacStedu } else 93926f3deacStedu continue; 94026f3deacStedu } 94126f3deacStedu 94226f3deacStedu if (aname) { 94326f3deacStedu error = ntfs_ntlookupattr(ntmp, 94426f3deacStedu aname, anamelen, 94526f3deacStedu &attrtype, &attrname); 94626f3deacStedu if (error) 94726f3deacStedu goto fail; 94826f3deacStedu } 94926f3deacStedu 95026f3deacStedu /* Check if we've found ourselves */ 95126f3deacStedu if ((iep->ie_number == ip->i_number) && 95226f3deacStedu (attrtype == fp->f_attrtype) && 95326f3deacStedu ((!attrname && !fp->f_attrname) || 95426f3deacStedu (attrname && fp->f_attrname && 95526f3deacStedu !strcmp(attrname, fp->f_attrname)))) 95626f3deacStedu { 957627b2c48Sthib vref(vp); 95826f3deacStedu *vpp = vp; 95926f3deacStedu error = 0; 96026f3deacStedu goto fail; 96126f3deacStedu } 96226f3deacStedu 96326f3deacStedu /* free the buffer returned by ntfs_ntlookupattr() */ 96426f3deacStedu if (attrname) { 965e8821f89Shshoexer free(attrname, M_TEMP); 96626f3deacStedu attrname = NULL; 96726f3deacStedu } 96826f3deacStedu 96926f3deacStedu /* vget node, but don't load it */ 97026f3deacStedu error = ntfs_vgetex(ntmp->ntm_mountp, 97126f3deacStedu iep->ie_number, attrtype, attrname, 97226f3deacStedu LK_EXCLUSIVE, VG_DONTLOADIN | VG_DONTVALIDFN, 97326f3deacStedu curproc, &nvp); 97426f3deacStedu if (error) 97526f3deacStedu goto fail; 97626f3deacStedu 97726f3deacStedu nfp = VTOF(nvp); 97826f3deacStedu 97926f3deacStedu if (nfp->f_flag & FN_VALID) { 98026f3deacStedu *vpp = nvp; 98126f3deacStedu goto fail; 98226f3deacStedu } 98326f3deacStedu 98426f3deacStedu nfp->f_fflag = iep->ie_fflag; 98526f3deacStedu nfp->f_pnumber = iep->ie_fpnumber; 98626f3deacStedu nfp->f_times = iep->ie_ftimes; 98726f3deacStedu 98826f3deacStedu if((nfp->f_fflag & NTFS_FFLAG_DIR) && 98926f3deacStedu (nfp->f_attrtype == NTFS_A_DATA) && 99026f3deacStedu (nfp->f_attrname == NULL)) 99126f3deacStedu f_type = VDIR; 99226f3deacStedu else 99326f3deacStedu f_type = VREG; 99426f3deacStedu 99526f3deacStedu nvp->v_type = f_type; 99626f3deacStedu 99726f3deacStedu if ((nfp->f_attrtype == NTFS_A_DATA) && 99826f3deacStedu (nfp->f_attrname == NULL)) 99926f3deacStedu { 100026f3deacStedu /* Opening default attribute */ 100126f3deacStedu nfp->f_size = iep->ie_fsize; 100226f3deacStedu nfp->f_allocated = iep->ie_fallocated; 100326f3deacStedu nfp->f_flag |= FN_PRELOADED; 100426f3deacStedu } else { 100526f3deacStedu error = ntfs_filesize(ntmp, nfp, 100626f3deacStedu &nfp->f_size, &nfp->f_allocated); 100726f3deacStedu if (error) { 100826f3deacStedu vput(nvp); 100926f3deacStedu goto fail; 101026f3deacStedu } 101126f3deacStedu } 101226f3deacStedu 101326f3deacStedu nfp->f_flag &= ~FN_VALID; 101426f3deacStedu *vpp = nvp; 101526f3deacStedu goto fail; 101626f3deacStedu } 101726f3deacStedu 101826f3deacStedu /* Dive if possible */ 101926f3deacStedu if (iep->ie_flag & NTFS_IEFLAG_SUBNODE) { 102026f3deacStedu dprintf(("ntfs_ntlookupfile: diving\n")); 102126f3deacStedu 102226f3deacStedu cn = *(cn_t *) (rdbuf + aoff + 102326f3deacStedu iep->reclen - sizeof(cn_t)); 102426f3deacStedu rdsize = blsize; 102526f3deacStedu 102626f3deacStedu error = ntfs_readattr(ntmp, ip, NTFS_A_INDX, "$I30", 102726f3deacStedu ntfs_cntob(cn), rdsize, rdbuf, NULL); 102826f3deacStedu if (error) 102926f3deacStedu goto fail; 103026f3deacStedu 103126f3deacStedu error = ntfs_procfixups(ntmp, NTFS_INDXMAGIC, 103226f3deacStedu rdbuf, rdsize); 103326f3deacStedu if (error) 103426f3deacStedu goto fail; 103526f3deacStedu 103626f3deacStedu aoff = (((struct attr_indexalloc *) rdbuf)->ia_hdrsize + 103726f3deacStedu 0x18); 103826f3deacStedu } else if (fullscan && lookup_ctx) { 103926f3deacStedu cn = lookup_ctx->cn; 104026f3deacStedu aoff = lookup_ctx->aoff; 104126f3deacStedu rdsize = lookup_ctx->rdsize; 104226f3deacStedu 104326f3deacStedu error = ntfs_readattr(ntmp, ip, 104426f3deacStedu (cn == 0) ? NTFS_A_INDXROOT : NTFS_A_INDX, 104526f3deacStedu "$I30", ntfs_cntob(cn), rdsize, rdbuf, NULL); 104626f3deacStedu if (error) 104726f3deacStedu goto fail; 104826f3deacStedu 104926f3deacStedu if (cn != 0) { 105026f3deacStedu error = ntfs_procfixups(ntmp, NTFS_INDXMAGIC, 105126f3deacStedu rdbuf, rdsize); 105226f3deacStedu if (error) 105326f3deacStedu goto fail; 105426f3deacStedu } 105526f3deacStedu 105626f3deacStedu tctx = lookup_ctx; 105726f3deacStedu lookup_ctx = lookup_ctx->prev; 1058e8821f89Shshoexer free(tctx, M_TEMP); 105926f3deacStedu } else { 106026f3deacStedu dprintf(("ntfs_ntlookupfile: nowhere to dive :-(\n")); 106126f3deacStedu error = ENOENT; 106226f3deacStedu break; 106326f3deacStedu } 106426f3deacStedu } while (1); 106526f3deacStedu 106626f3deacStedu /* perform full scan if no entry was found */ 106726f3deacStedu if (!fullscan && error == ENOENT) { 106826f3deacStedu fullscan = 1; 106926f3deacStedu cn = 0; /* need zero, used by lookup_ctx */ 107026f3deacStedu 107126f3deacStedu ddprintf(("ntfs_ntlookupfile: fullscan performed for: %.*s\n", 107226f3deacStedu (int) fnamelen, fname)); 107326f3deacStedu goto loop; 107426f3deacStedu } 107526f3deacStedu 107626f3deacStedu dprintf(("finish\n")); 107726f3deacStedu 107826f3deacStedu fail: 10796f6d0059Sjsing if (vap) 10806f6d0059Sjsing ntfs_ntvattrrele(vap); 10816f6d0059Sjsing if (rdbuf) 10826f6d0059Sjsing free(rdbuf, M_TEMP); 108326f3deacStedu if (attrname) 1084e8821f89Shshoexer free(attrname, M_TEMP); 108526f3deacStedu if (lookup_ctx) { 108626f3deacStedu while(lookup_ctx) { 108726f3deacStedu tctx = lookup_ctx; 108826f3deacStedu lookup_ctx = lookup_ctx->prev; 1089e8821f89Shshoexer free(tctx, M_TEMP); 109026f3deacStedu } 109126f3deacStedu } 109226f3deacStedu ntfs_ntput(ip, p); 109326f3deacStedu return (error); 109426f3deacStedu } 109526f3deacStedu 109626f3deacStedu /* 109726f3deacStedu * Check if name type is permitted to show. 109826f3deacStedu */ 109926f3deacStedu int 11001cc0505dSjsing ntfs_isnamepermitted(struct ntfsmount *ntmp, struct attr_indexentry *iep) 110126f3deacStedu { 110226f3deacStedu if (ntmp->ntm_flag & NTFS_MFLAG_ALLNAMES) 110326f3deacStedu return 1; 110426f3deacStedu 110526f3deacStedu switch (iep->ie_fnametype) { 110626f3deacStedu case 2: 110726f3deacStedu ddprintf(("ntfs_isnamepermitted: skipped DOS name\n")); 110826f3deacStedu return 0; 110926f3deacStedu case 0: case 1: case 3: 111026f3deacStedu return 1; 111126f3deacStedu default: 111226f3deacStedu printf("ntfs_isnamepermitted: " \ 111326f3deacStedu "WARNING! Unknown file name type: %d\n", 111426f3deacStedu iep->ie_fnametype); 111526f3deacStedu break; 111626f3deacStedu } 111726f3deacStedu return 0; 111826f3deacStedu } 111926f3deacStedu 112026f3deacStedu /* 112126f3deacStedu * Read ntfs dir like stream of attr_indexentry, not like btree of them. 112226f3deacStedu * This is done by scanning $BITMAP:$I30 for busy clusters and reading them. 112326f3deacStedu * Of course $INDEX_ROOT:$I30 is read before. Last read values are stored in 112426f3deacStedu * fnode, so we can skip toward record number num almost immediately. 112526f3deacStedu * Anyway this is rather slow routine. The problem is that we don't know 112626f3deacStedu * how many records are there in $INDEX_ALLOCATION:$I30 block. 112726f3deacStedu */ 112826f3deacStedu int 11291cc0505dSjsing ntfs_ntreaddir(struct ntfsmount *ntmp, struct fnode *fp, u_int32_t num, 11301cc0505dSjsing struct attr_indexentry **riepp, struct proc *p) 113126f3deacStedu { 113226f3deacStedu struct ntnode *ip = FTONT(fp); 113326f3deacStedu struct ntvattr *vap = NULL; /* IndexRoot attribute */ 113426f3deacStedu struct ntvattr *bmvap = NULL; /* BitMap attribute */ 113526f3deacStedu struct ntvattr *iavap = NULL; /* IndexAllocation attribute */ 113626f3deacStedu caddr_t rdbuf; /* Buffer to read directory's blocks */ 11376978a3abSbrad u_int8_t *bmp = NULL; /* Bitmap */ 113826f3deacStedu u_int32_t blsize; /* Index allocation size (2048) */ 113926f3deacStedu u_int32_t rdsize; /* Length of data to read */ 114026f3deacStedu u_int32_t attrnum; /* Current attribute type */ 114126f3deacStedu u_int32_t cpbl = 1; /* Clusters per directory block */ 114226f3deacStedu u_int32_t blnum; 114326f3deacStedu struct attr_indexentry *iep; 114426f3deacStedu int error = ENOENT; 114526f3deacStedu u_int32_t aoff, cnum; 114626f3deacStedu 114726f3deacStedu dprintf(("ntfs_ntreaddir: read ino: %d, num: %d\n", ip->i_number, num)); 114826f3deacStedu error = ntfs_ntget(ip, p); 114926f3deacStedu if (error) 115026f3deacStedu return (error); 115126f3deacStedu 115226f3deacStedu error = ntfs_ntvattrget(ntmp, ip, NTFS_A_INDXROOT, "$I30", 0, &vap); 11536f6d0059Sjsing if (error) { 11546f6d0059Sjsing error = ENOTDIR; 11556f6d0059Sjsing goto fail; 11566f6d0059Sjsing } 115726f3deacStedu 115826f3deacStedu if (fp->f_dirblbuf == NULL) { 115926f3deacStedu fp->f_dirblsz = vap->va_a_iroot->ir_size; 1160c6c302e5Stedu fp->f_dirblbuf = malloc(MAX(vap->va_datalen,fp->f_dirblsz), 1161c6c302e5Stedu M_NTFSDIR, M_WAITOK); 116226f3deacStedu } 116326f3deacStedu 116426f3deacStedu blsize = fp->f_dirblsz; 116526f3deacStedu rdbuf = fp->f_dirblbuf; 116626f3deacStedu 1167846c180eSbrad dprintf(("ntfs_ntreaddir: rdbuf: %p, blsize: %d\n", rdbuf, blsize)); 116826f3deacStedu 116926f3deacStedu if (vap->va_a_iroot->ir_flag & NTFS_IRFLAG_INDXALLOC) { 117026f3deacStedu error = ntfs_ntvattrget(ntmp, ip, NTFS_A_INDXBITMAP, "$I30", 117126f3deacStedu 0, &bmvap); 117226f3deacStedu if (error) { 117326f3deacStedu error = ENOTDIR; 117426f3deacStedu goto fail; 117526f3deacStedu } 1176c6c302e5Stedu bmp = malloc(bmvap->va_datalen, M_TEMP, M_WAITOK); 117726f3deacStedu error = ntfs_readattr(ntmp, ip, NTFS_A_INDXBITMAP, "$I30", 0, 117826f3deacStedu bmvap->va_datalen, bmp, NULL); 117926f3deacStedu if (error) 118026f3deacStedu goto fail; 118126f3deacStedu 118226f3deacStedu error = ntfs_ntvattrget(ntmp, ip, NTFS_A_INDX, "$I30", 118326f3deacStedu 0, &iavap); 118426f3deacStedu if (error) { 118526f3deacStedu error = ENOTDIR; 118626f3deacStedu goto fail; 118726f3deacStedu } 118826f3deacStedu cpbl = ntfs_btocn(blsize + ntfs_cntob(1) - 1); 118926f3deacStedu dprintf(("ntfs_ntreaddir: indexalloc: %d, cpbl: %d\n", 119026f3deacStedu iavap->va_datalen, cpbl)); 119126f3deacStedu } else { 119226f3deacStedu dprintf(("ntfs_ntreadidir: w/o BitMap and IndexAllocation\n")); 119326f3deacStedu iavap = bmvap = NULL; 119426f3deacStedu bmp = NULL; 119526f3deacStedu } 119626f3deacStedu 119726f3deacStedu /* Try use previous values */ 119826f3deacStedu if ((fp->f_lastdnum < num) && (fp->f_lastdnum != 0)) { 119926f3deacStedu attrnum = fp->f_lastdattr; 120026f3deacStedu aoff = fp->f_lastdoff; 120126f3deacStedu blnum = fp->f_lastdblnum; 120226f3deacStedu cnum = fp->f_lastdnum; 120326f3deacStedu } else { 120426f3deacStedu attrnum = NTFS_A_INDXROOT; 120526f3deacStedu aoff = sizeof(struct attr_indexroot); 120626f3deacStedu blnum = 0; 120726f3deacStedu cnum = 0; 120826f3deacStedu } 120926f3deacStedu 121026f3deacStedu do { 121126f3deacStedu dprintf(("ntfs_ntreaddir: scan: 0x%x, %d, %d, %d, %d\n", 121226f3deacStedu attrnum, (u_int32_t) blnum, cnum, num, aoff)); 121326f3deacStedu rdsize = (attrnum == NTFS_A_INDXROOT) ? vap->va_datalen : blsize; 121426f3deacStedu error = ntfs_readattr(ntmp, ip, attrnum, "$I30", 121526f3deacStedu ntfs_cntob(blnum * cpbl), rdsize, rdbuf, NULL); 121626f3deacStedu if (error) 121726f3deacStedu goto fail; 121826f3deacStedu 121926f3deacStedu if (attrnum == NTFS_A_INDX) { 122026f3deacStedu error = ntfs_procfixups(ntmp, NTFS_INDXMAGIC, 122126f3deacStedu rdbuf, rdsize); 122226f3deacStedu if (error) 122326f3deacStedu goto fail; 122426f3deacStedu } 122526f3deacStedu if (aoff == 0) 122626f3deacStedu aoff = (attrnum == NTFS_A_INDX) ? 122726f3deacStedu (0x18 + ((struct attr_indexalloc *) rdbuf)->ia_hdrsize) : 122826f3deacStedu sizeof(struct attr_indexroot); 122926f3deacStedu 123026f3deacStedu iep = (struct attr_indexentry *) (rdbuf + aoff); 123126f3deacStedu for (; !(iep->ie_flag & NTFS_IEFLAG_LAST) && (rdsize > aoff); 123226f3deacStedu aoff += iep->reclen, 123326f3deacStedu iep = (struct attr_indexentry *) (rdbuf + aoff)) 123426f3deacStedu { 123526f3deacStedu if (!ntfs_isnamepermitted(ntmp, iep)) continue; 123626f3deacStedu 123726f3deacStedu if (cnum >= num) { 123826f3deacStedu fp->f_lastdnum = cnum; 123926f3deacStedu fp->f_lastdoff = aoff; 124026f3deacStedu fp->f_lastdblnum = blnum; 124126f3deacStedu fp->f_lastdattr = attrnum; 124226f3deacStedu 124326f3deacStedu *riepp = iep; 124426f3deacStedu 124526f3deacStedu error = 0; 124626f3deacStedu goto fail; 124726f3deacStedu } 124826f3deacStedu cnum++; 124926f3deacStedu } 125026f3deacStedu 125126f3deacStedu if (iavap) { 125226f3deacStedu if (attrnum == NTFS_A_INDXROOT) 125326f3deacStedu blnum = 0; 125426f3deacStedu else 125526f3deacStedu blnum++; 125626f3deacStedu 125726f3deacStedu while (ntfs_cntob(blnum * cpbl) < iavap->va_datalen) { 12586978a3abSbrad if (bmp[blnum >> 3] & (1 << (blnum & 7))) 125926f3deacStedu break; 126026f3deacStedu blnum++; 126126f3deacStedu } 126226f3deacStedu 126326f3deacStedu attrnum = NTFS_A_INDX; 126426f3deacStedu aoff = 0; 126526f3deacStedu if (ntfs_cntob(blnum * cpbl) >= iavap->va_datalen) 126626f3deacStedu break; 126726f3deacStedu dprintf(("ntfs_ntreaddir: blnum: %d\n", (u_int32_t) blnum)); 126826f3deacStedu } 126926f3deacStedu } while (iavap); 127026f3deacStedu 127126f3deacStedu *riepp = NULL; 127226f3deacStedu fp->f_lastdnum = 0; 127326f3deacStedu 127426f3deacStedu fail: 127526f3deacStedu if (vap) 127626f3deacStedu ntfs_ntvattrrele(vap); 127726f3deacStedu if (bmvap) 127826f3deacStedu ntfs_ntvattrrele(bmvap); 127926f3deacStedu if (iavap) 128026f3deacStedu ntfs_ntvattrrele(iavap); 128126f3deacStedu if (bmp) 1282e8821f89Shshoexer free(bmp, M_TEMP); 128326f3deacStedu ntfs_ntput(ip, p); 12841ad3841aSjasper 128526f3deacStedu return (error); 128626f3deacStedu } 128726f3deacStedu 128826f3deacStedu /* 128926f3deacStedu * Convert NTFS times that are in 100 ns units and begins from 129026f3deacStedu * 1601 Jan 1 into unix times. 129126f3deacStedu */ 129226f3deacStedu struct timespec 12931cc0505dSjsing ntfs_nttimetounix(u_int64_t nt) 129426f3deacStedu { 129526f3deacStedu struct timespec t; 129626f3deacStedu 129726f3deacStedu /* WindowNT times are in 100 ns and from 1601 Jan 1 */ 129826f3deacStedu t.tv_nsec = (nt % (1000 * 1000 * 10)) * 100; 129926f3deacStedu t.tv_sec = nt / (1000 * 1000 * 10) - 130026f3deacStedu 369LL * 365LL * 24LL * 60LL * 60LL - 130126f3deacStedu 89LL * 1LL * 24LL * 60LL * 60LL; 130226f3deacStedu return (t); 130326f3deacStedu } 130426f3deacStedu 130526f3deacStedu /* 130626f3deacStedu * Get file sizes from corresponding attribute. 130726f3deacStedu * 130826f3deacStedu * ntnode under fnode should be locked. 130926f3deacStedu */ 131026f3deacStedu int 13111cc0505dSjsing ntfs_filesize(struct ntfsmount *ntmp, struct fnode *fp, u_int64_t *size, 131226f3deacStedu u_int64_t *bytes) 131326f3deacStedu { 131426f3deacStedu struct ntvattr *vap; 131526f3deacStedu struct ntnode *ip = FTONT(fp); 131626f3deacStedu u_int64_t sz, bn; 131726f3deacStedu int error; 131826f3deacStedu 131926f3deacStedu dprintf(("ntfs_filesize: ino: %d\n", ip->i_number)); 132026f3deacStedu 132126f3deacStedu error = ntfs_ntvattrget(ntmp, ip, 132226f3deacStedu fp->f_attrtype, fp->f_attrname, 0, &vap); 132326f3deacStedu if (error) 132426f3deacStedu return (error); 132526f3deacStedu 132626f3deacStedu bn = vap->va_allocated; 132726f3deacStedu sz = vap->va_datalen; 132826f3deacStedu 132926f3deacStedu dprintf(("ntfs_filesize: %d bytes (%d bytes allocated)\n", 133026f3deacStedu (u_int32_t) sz, (u_int32_t) bn)); 133126f3deacStedu 133226f3deacStedu if (size) 133326f3deacStedu *size = sz; 133426f3deacStedu if (bytes) 133526f3deacStedu *bytes = bn; 133626f3deacStedu 133726f3deacStedu ntfs_ntvattrrele(vap); 133826f3deacStedu 133926f3deacStedu return (0); 134026f3deacStedu } 134126f3deacStedu 134226f3deacStedu /* 1343835c1779Sbrad * This is one of the write routines. 134426f3deacStedu */ 134526f3deacStedu int 13461cc0505dSjsing ntfs_writeattr_plain(struct ntfsmount *ntmp, struct ntnode *ip, 13471cc0505dSjsing u_int32_t attrnum, char *attrname, off_t roff, size_t rsize, void *rdata, 13481cc0505dSjsing size_t *initp, struct uio *uio) 134926f3deacStedu { 135026f3deacStedu size_t init; 135126f3deacStedu int error = 0; 135226f3deacStedu off_t off = roff, left = rsize, towrite; 135326f3deacStedu caddr_t data = rdata; 135426f3deacStedu struct ntvattr *vap; 135526f3deacStedu *initp = 0; 135626f3deacStedu 135726f3deacStedu while (left) { 135826f3deacStedu error = ntfs_ntvattrget(ntmp, ip, attrnum, attrname, 135926f3deacStedu ntfs_btocn(off), &vap); 136026f3deacStedu if (error) 136126f3deacStedu return (error); 1362835c1779Sbrad towrite = MIN(left, ntfs_cntob(vap->va_vcnend + 1) - off); 136326f3deacStedu ddprintf(("ntfs_writeattr_plain: o: %d, s: %d (%d - %d)\n", 136426f3deacStedu (u_int32_t) off, (u_int32_t) towrite, 136526f3deacStedu (u_int32_t) vap->va_vcnstart, 136626f3deacStedu (u_int32_t) vap->va_vcnend)); 136726f3deacStedu error = ntfs_writentvattr_plain(ntmp, ip, vap, 136826f3deacStedu off - ntfs_cntob(vap->va_vcnstart), 136926f3deacStedu towrite, data, &init, uio); 137026f3deacStedu if (error) { 137126f3deacStedu dprintf(("ntfs_writeattr_plain: " \ 137226f3deacStedu "ntfs_writentvattr_plain failed: o: %d, s: %d\n", 137326f3deacStedu (u_int32_t) off, (u_int32_t) towrite)); 137426f3deacStedu dprintf(("ntfs_writeattr_plain: attrib: %d - %d\n", 137526f3deacStedu (u_int32_t) vap->va_vcnstart, 137626f3deacStedu (u_int32_t) vap->va_vcnend)); 137726f3deacStedu ntfs_ntvattrrele(vap); 137826f3deacStedu break; 137926f3deacStedu } 138026f3deacStedu ntfs_ntvattrrele(vap); 138126f3deacStedu left -= towrite; 138226f3deacStedu off += towrite; 138326f3deacStedu data = data + towrite; 138426f3deacStedu *initp += init; 138526f3deacStedu } 138626f3deacStedu 138726f3deacStedu return (error); 138826f3deacStedu } 138926f3deacStedu 139026f3deacStedu /* 1391835c1779Sbrad * This is one of the write routines. 139226f3deacStedu * 139326f3deacStedu * ntnode should be locked. 139426f3deacStedu */ 139526f3deacStedu int 13961cc0505dSjsing ntfs_writentvattr_plain(struct ntfsmount *ntmp, struct ntnode *ip, 13971cc0505dSjsing struct ntvattr *vap, off_t roff, size_t rsize, void *rdata, size_t *initp, 139826f3deacStedu struct uio *uio) 139926f3deacStedu { 140026f3deacStedu int error = 0; 140126f3deacStedu int off; 140226f3deacStedu int cnt; 140326f3deacStedu cn_t ccn, ccl, cn, left, cl; 140426f3deacStedu caddr_t data = rdata; 140526f3deacStedu struct buf *bp; 140626f3deacStedu size_t tocopy; 140726f3deacStedu 140826f3deacStedu *initp = 0; 140926f3deacStedu 141026f3deacStedu if ((vap->va_flag & NTFS_AF_INRUN) == 0) { 141126f3deacStedu dprintf(("ntfs_writevattr_plain: CAN'T WRITE RES. ATTRIBUTE\n")); 141226f3deacStedu return ENOTTY; 141326f3deacStedu } 141426f3deacStedu 141526f3deacStedu ddprintf(("ntfs_writentvattr_plain: data in run: %lu chains\n", 141626f3deacStedu vap->va_vruncnt)); 141726f3deacStedu 141826f3deacStedu off = roff; 141926f3deacStedu left = rsize; 142026f3deacStedu ccl = 0; 142126f3deacStedu ccn = 0; 142226f3deacStedu cnt = 0; 142326f3deacStedu for (; left && (cnt < vap->va_vruncnt); cnt++) { 142426f3deacStedu ccn = vap->va_vruncn[cnt]; 142526f3deacStedu ccl = vap->va_vruncl[cnt]; 142626f3deacStedu 142726f3deacStedu ddprintf(("ntfs_writentvattr_plain: " \ 142826f3deacStedu "left %d, cn: 0x%x, cl: %d, off: %d\n", \ 142926f3deacStedu (u_int32_t) left, (u_int32_t) ccn, \ 143026f3deacStedu (u_int32_t) ccl, (u_int32_t) off)); 143126f3deacStedu 143226f3deacStedu if (ntfs_cntob(ccl) < off) { 143326f3deacStedu off -= ntfs_cntob(ccl); 143426f3deacStedu cnt++; 143526f3deacStedu continue; 143626f3deacStedu } 143726f3deacStedu if (!ccn && ip->i_number != NTFS_BOOTINO) 143826f3deacStedu continue; /* XXX */ 143926f3deacStedu 144026f3deacStedu ccl -= ntfs_btocn(off); 144126f3deacStedu cn = ccn + ntfs_btocn(off); 144226f3deacStedu off = ntfs_btocnoff(off); 144326f3deacStedu 144426f3deacStedu while (left && ccl) { 1445835c1779Sbrad /* 1446835c1779Sbrad * Always read and write single clusters at a time - 1447835c1779Sbrad * we need to avoid requesting differently-sized 1448835c1779Sbrad * blocks at the same disk offsets to avoid 1449835c1779Sbrad * confusing the buffer cache. 1450835c1779Sbrad */ 1451835c1779Sbrad tocopy = MIN(left, ntfs_cntob(1) - off); 145226f3deacStedu cl = ntfs_btocl(tocopy + off); 1453835c1779Sbrad KASSERT(cl == 1 && tocopy <= ntfs_cntob(1)); 145426f3deacStedu ddprintf(("ntfs_writentvattr_plain: write: " \ 145526f3deacStedu "cn: 0x%x cl: %d, off: %d len: %d, left: %d\n", 145626f3deacStedu (u_int32_t) cn, (u_int32_t) cl, 145726f3deacStedu (u_int32_t) off, (u_int32_t) tocopy, 145826f3deacStedu (u_int32_t) left)); 145926f3deacStedu if ((off == 0) && (tocopy == ntfs_cntob(cl))) 146026f3deacStedu { 146126f3deacStedu bp = getblk(ntmp->ntm_devvp, ntfs_cntobn(cn), 146226f3deacStedu ntfs_cntob(cl), 0, 0); 146326f3deacStedu clrbuf(bp); 146426f3deacStedu } else { 146526f3deacStedu error = bread(ntmp->ntm_devvp, ntfs_cntobn(cn), 146693f62a9eStedu ntfs_cntob(cl), &bp); 146726f3deacStedu if (error) { 146826f3deacStedu brelse(bp); 146926f3deacStedu return (error); 147026f3deacStedu } 147126f3deacStedu } 1472fca26c8fSmiod if (uio) { 1473fca26c8fSmiod error = uiomove(bp->b_data + off, tocopy, uio); 1474fca26c8fSmiod if (error != 0) 1475fca26c8fSmiod break; 1476fca26c8fSmiod } else 147726f3deacStedu memcpy(bp->b_data + off, data, tocopy); 147826f3deacStedu bawrite(bp); 147926f3deacStedu data = data + tocopy; 148026f3deacStedu *initp += tocopy; 148126f3deacStedu off = 0; 148226f3deacStedu left -= tocopy; 148326f3deacStedu cn += cl; 148426f3deacStedu ccl -= cl; 148526f3deacStedu } 148626f3deacStedu } 148726f3deacStedu 1488fca26c8fSmiod if (left && error == 0) { 148926f3deacStedu printf("ntfs_writentvattr_plain: POSSIBLE RUN ERROR\n"); 149026f3deacStedu error = EINVAL; 149126f3deacStedu } 149226f3deacStedu 149326f3deacStedu return (error); 149426f3deacStedu } 149526f3deacStedu 149626f3deacStedu /* 1497835c1779Sbrad * This is one of the read routines. 149826f3deacStedu * 149926f3deacStedu * ntnode should be locked. 150026f3deacStedu */ 150126f3deacStedu int 15021cc0505dSjsing ntfs_readntvattr_plain(struct ntfsmount *ntmp, struct ntnode *ip, 15031cc0505dSjsing struct ntvattr *vap, off_t roff, size_t rsize, void *rdata, size_t *initp, 150426f3deacStedu struct uio *uio) 150526f3deacStedu { 150626f3deacStedu int error = 0; 150726f3deacStedu int off; 150826f3deacStedu 150926f3deacStedu *initp = 0; 151026f3deacStedu if (vap->va_flag & NTFS_AF_INRUN) { 151126f3deacStedu int cnt; 151226f3deacStedu cn_t ccn, ccl, cn, left, cl; 151326f3deacStedu caddr_t data = rdata; 151426f3deacStedu struct buf *bp; 151526f3deacStedu size_t tocopy; 151626f3deacStedu 151726f3deacStedu ddprintf(("ntfs_readntvattr_plain: data in run: %lu chains\n", 151826f3deacStedu vap->va_vruncnt)); 151926f3deacStedu 152026f3deacStedu off = roff; 152126f3deacStedu left = rsize; 152226f3deacStedu ccl = 0; 152326f3deacStedu ccn = 0; 152426f3deacStedu cnt = 0; 152526f3deacStedu while (left && (cnt < vap->va_vruncnt)) { 152626f3deacStedu ccn = vap->va_vruncn[cnt]; 152726f3deacStedu ccl = vap->va_vruncl[cnt]; 152826f3deacStedu 152926f3deacStedu ddprintf(("ntfs_readntvattr_plain: " \ 153026f3deacStedu "left %d, cn: 0x%x, cl: %d, off: %d\n", \ 153126f3deacStedu (u_int32_t) left, (u_int32_t) ccn, \ 153226f3deacStedu (u_int32_t) ccl, (u_int32_t) off)); 153326f3deacStedu 153426f3deacStedu if (ntfs_cntob(ccl) < off) { 153526f3deacStedu off -= ntfs_cntob(ccl); 153626f3deacStedu cnt++; 153726f3deacStedu continue; 153826f3deacStedu } 153926f3deacStedu if (ccn || ip->i_number == NTFS_BOOTINO) { 154026f3deacStedu ccl -= ntfs_btocn(off); 154126f3deacStedu cn = ccn + ntfs_btocn(off); 154226f3deacStedu off = ntfs_btocnoff(off); 154326f3deacStedu 154426f3deacStedu while (left && ccl) { 154526f3deacStedu /* 1546835c1779Sbrad * Always read single clusters at a 1547835c1779Sbrad * time - we need to avoid reading 1548835c1779Sbrad * differently-sized blocks at the 1549835c1779Sbrad * same disk offsets to avoid 1550835c1779Sbrad * confusing the buffer cache. 155126f3deacStedu */ 1552835c1779Sbrad tocopy = MIN(left, 1553835c1779Sbrad ntfs_cntob(1) - off); 1554835c1779Sbrad cl = ntfs_btocl(tocopy + off); 1555835c1779Sbrad KASSERT(cl == 1 && 1556835c1779Sbrad tocopy <= ntfs_cntob(1)); 155726f3deacStedu 155826f3deacStedu ddprintf(("ntfs_readntvattr_plain: " \ 155926f3deacStedu "read: cn: 0x%x cl: %d, " \ 156026f3deacStedu "off: %d len: %d, left: %d\n", 156126f3deacStedu (u_int32_t) cn, 156226f3deacStedu (u_int32_t) cl, 156326f3deacStedu (u_int32_t) off, 156426f3deacStedu (u_int32_t) tocopy, 156526f3deacStedu (u_int32_t) left)); 156626f3deacStedu error = bread(ntmp->ntm_devvp, 156726f3deacStedu ntfs_cntobn(cn), 156826f3deacStedu ntfs_cntob(cl), 156993f62a9eStedu &bp); 157026f3deacStedu if (error) { 157126f3deacStedu brelse(bp); 157226f3deacStedu return (error); 157326f3deacStedu } 157426f3deacStedu if (uio) { 1575fca26c8fSmiod error = uiomove(bp->b_data + off, 157626f3deacStedu tocopy, uio); 1577fca26c8fSmiod if (error != 0) 1578fca26c8fSmiod break; 157926f3deacStedu } else { 158026f3deacStedu memcpy(data, bp->b_data + off, 158126f3deacStedu tocopy); 158226f3deacStedu } 158326f3deacStedu brelse(bp); 158426f3deacStedu data = data + tocopy; 158526f3deacStedu *initp += tocopy; 158626f3deacStedu off = 0; 158726f3deacStedu left -= tocopy; 158826f3deacStedu cn += cl; 158926f3deacStedu ccl -= cl; 159026f3deacStedu } 159126f3deacStedu } else { 1592835c1779Sbrad tocopy = MIN(left, ntfs_cntob(ccl) - off); 159326f3deacStedu ddprintf(("ntfs_readntvattr_plain: " 159426f3deacStedu "hole: ccn: 0x%x ccl: %d, off: %d, " \ 159526f3deacStedu " len: %d, left: %d\n", 159626f3deacStedu (u_int32_t) ccn, (u_int32_t) ccl, 159726f3deacStedu (u_int32_t) off, (u_int32_t) tocopy, 159826f3deacStedu (u_int32_t) left)); 159926f3deacStedu left -= tocopy; 160026f3deacStedu off = 0; 160126f3deacStedu if (uio) { 160226f3deacStedu size_t remains = tocopy; 1603fca26c8fSmiod for(; remains; remains--) { 1604fca26c8fSmiod error = uiomove("", 1, uio); 1605fca26c8fSmiod if (error != 0) 1606fca26c8fSmiod break; 1607fca26c8fSmiod } 160826f3deacStedu } else 160926f3deacStedu bzero(data, tocopy); 161026f3deacStedu data = data + tocopy; 161126f3deacStedu } 161226f3deacStedu cnt++; 1613fca26c8fSmiod if (error != 0) 1614fca26c8fSmiod break; 161526f3deacStedu } 1616fca26c8fSmiod if (left && error == 0) { 161726f3deacStedu printf("ntfs_readntvattr_plain: POSSIBLE RUN ERROR\n"); 161826f3deacStedu error = E2BIG; 161926f3deacStedu } 162026f3deacStedu } else { 162126f3deacStedu ddprintf(("ntfs_readnvattr_plain: data is in mft record\n")); 162226f3deacStedu if (uio) 1623fca26c8fSmiod error = uiomove(vap->va_datap + roff, rsize, uio); 162426f3deacStedu else 162526f3deacStedu memcpy(rdata, vap->va_datap + roff, rsize); 162626f3deacStedu *initp += rsize; 162726f3deacStedu } 162826f3deacStedu 162926f3deacStedu return (error); 163026f3deacStedu } 163126f3deacStedu 163226f3deacStedu /* 163326f3deacStedu * This is one of read routines. 163426f3deacStedu */ 163526f3deacStedu int 16361cc0505dSjsing ntfs_readattr_plain(struct ntfsmount *ntmp, struct ntnode *ip, 16371cc0505dSjsing u_int32_t attrnum, char *attrname, off_t roff, size_t rsize, void *rdata, 16381cc0505dSjsing size_t *initp, struct uio *uio) 163926f3deacStedu { 164026f3deacStedu size_t init; 164126f3deacStedu int error = 0; 164226f3deacStedu off_t off = roff, left = rsize, toread; 164326f3deacStedu caddr_t data = rdata; 164426f3deacStedu struct ntvattr *vap; 164526f3deacStedu *initp = 0; 164626f3deacStedu 164726f3deacStedu while (left) { 164826f3deacStedu error = ntfs_ntvattrget(ntmp, ip, attrnum, attrname, 164926f3deacStedu ntfs_btocn(off), &vap); 165026f3deacStedu if (error) 165126f3deacStedu return (error); 1652835c1779Sbrad toread = MIN(left, ntfs_cntob(vap->va_vcnend + 1) - off); 165326f3deacStedu ddprintf(("ntfs_readattr_plain: o: %d, s: %d (%d - %d)\n", 165426f3deacStedu (u_int32_t) off, (u_int32_t) toread, 165526f3deacStedu (u_int32_t) vap->va_vcnstart, 165626f3deacStedu (u_int32_t) vap->va_vcnend)); 165726f3deacStedu error = ntfs_readntvattr_plain(ntmp, ip, vap, 165826f3deacStedu off - ntfs_cntob(vap->va_vcnstart), 165926f3deacStedu toread, data, &init, uio); 166026f3deacStedu if (error) { 166126f3deacStedu printf("ntfs_readattr_plain: " \ 166226f3deacStedu "ntfs_readntvattr_plain failed: o: %d, s: %d\n", 166326f3deacStedu (u_int32_t) off, (u_int32_t) toread); 166426f3deacStedu printf("ntfs_readattr_plain: attrib: %d - %d\n", 166526f3deacStedu (u_int32_t) vap->va_vcnstart, 166626f3deacStedu (u_int32_t) vap->va_vcnend); 166726f3deacStedu ntfs_ntvattrrele(vap); 166826f3deacStedu break; 166926f3deacStedu } 167026f3deacStedu ntfs_ntvattrrele(vap); 167126f3deacStedu left -= toread; 167226f3deacStedu off += toread; 167326f3deacStedu data = data + toread; 167426f3deacStedu *initp += init; 167526f3deacStedu } 167626f3deacStedu 167726f3deacStedu return (error); 167826f3deacStedu } 167926f3deacStedu 168026f3deacStedu /* 168126f3deacStedu * This is one of read routines. 168226f3deacStedu */ 168326f3deacStedu int 16841cc0505dSjsing ntfs_readattr(struct ntfsmount *ntmp, struct ntnode *ip, u_int32_t attrnum, 16851cc0505dSjsing char *attrname, off_t roff, size_t rsize, void *rdata, struct uio *uio) 168626f3deacStedu { 168726f3deacStedu int error = 0; 168826f3deacStedu struct ntvattr *vap; 168926f3deacStedu size_t init; 169026f3deacStedu 169126f3deacStedu ddprintf(("ntfs_readattr: reading %d: 0x%x, from %d size %d bytes\n", 169226f3deacStedu ip->i_number, attrnum, (u_int32_t) roff, (u_int32_t) rsize)); 169326f3deacStedu 169426f3deacStedu error = ntfs_ntvattrget(ntmp, ip, attrnum, attrname, 0, &vap); 169526f3deacStedu if (error) 169626f3deacStedu return (error); 169726f3deacStedu 169826f3deacStedu if ((roff > vap->va_datalen) || 169926f3deacStedu (roff + rsize > vap->va_datalen)) { 170026f3deacStedu printf("ntfs_readattr: offset too big: %ld (%ld) > %ld\n", 170126f3deacStedu (long int) roff, (long int) roff + rsize, 170226f3deacStedu (long int) vap->va_datalen); 170326f3deacStedu ntfs_ntvattrrele(vap); 170426f3deacStedu return (E2BIG); 170526f3deacStedu } 170626f3deacStedu if (vap->va_compression && vap->va_compressalg) { 170726f3deacStedu u_int8_t *cup; 170826f3deacStedu u_int8_t *uup; 170926f3deacStedu off_t off = roff, left = rsize, tocopy; 171026f3deacStedu caddr_t data = rdata; 171126f3deacStedu cn_t cn; 171226f3deacStedu 171326f3deacStedu ddprintf(("ntfs_ntreadattr: compression: %d\n", 171426f3deacStedu vap->va_compressalg)); 171526f3deacStedu 1716e8821f89Shshoexer cup = malloc(ntfs_cntob(NTFS_COMPUNIT_CL), M_NTFSDECOMP, 1717e8821f89Shshoexer M_WAITOK); 1718e8821f89Shshoexer uup = malloc(ntfs_cntob(NTFS_COMPUNIT_CL), M_NTFSDECOMP, 1719e8821f89Shshoexer M_WAITOK); 172026f3deacStedu 172126f3deacStedu cn = (ntfs_btocn(roff)) & (~(NTFS_COMPUNIT_CL - 1)); 172226f3deacStedu off = roff - ntfs_cntob(cn); 172326f3deacStedu 172426f3deacStedu while (left) { 172526f3deacStedu error = ntfs_readattr_plain(ntmp, ip, attrnum, 172626f3deacStedu attrname, ntfs_cntob(cn), 172726f3deacStedu ntfs_cntob(NTFS_COMPUNIT_CL), 172826f3deacStedu cup, &init, NULL); 172926f3deacStedu if (error) 173026f3deacStedu break; 173126f3deacStedu 1732835c1779Sbrad tocopy = MIN(left, ntfs_cntob(NTFS_COMPUNIT_CL) - off); 173326f3deacStedu 173426f3deacStedu if (init == ntfs_cntob(NTFS_COMPUNIT_CL)) { 173526f3deacStedu if (uio) 1736fca26c8fSmiod error = uiomove(cup + off, tocopy, uio); 173726f3deacStedu else 173826f3deacStedu memcpy(data, cup + off, tocopy); 173926f3deacStedu } else if (init == 0) { 174026f3deacStedu if (uio) { 174126f3deacStedu size_t remains = tocopy; 1742fca26c8fSmiod for(; remains; remains--) { 1743fca26c8fSmiod error = uiomove("", 1, uio); 1744fca26c8fSmiod if (error != 0) 1745fca26c8fSmiod break; 1746fca26c8fSmiod } 174726f3deacStedu } 174826f3deacStedu else 174926f3deacStedu bzero(data, tocopy); 175026f3deacStedu } else { 175126f3deacStedu error = ntfs_uncompunit(ntmp, uup, cup); 175226f3deacStedu if (error) 175326f3deacStedu break; 175426f3deacStedu if (uio) 1755fca26c8fSmiod error = uiomove(uup + off, tocopy, uio); 175626f3deacStedu else 175726f3deacStedu memcpy(data, uup + off, tocopy); 175826f3deacStedu } 1759fca26c8fSmiod if (error) 1760fca26c8fSmiod break; 176126f3deacStedu 176226f3deacStedu left -= tocopy; 176326f3deacStedu data = data + tocopy; 176426f3deacStedu off += tocopy - ntfs_cntob(NTFS_COMPUNIT_CL); 176526f3deacStedu cn += NTFS_COMPUNIT_CL; 176626f3deacStedu } 176726f3deacStedu 1768e8821f89Shshoexer free(uup, M_NTFSDECOMP); 1769e8821f89Shshoexer free(cup, M_NTFSDECOMP); 177026f3deacStedu } else 177126f3deacStedu error = ntfs_readattr_plain(ntmp, ip, attrnum, attrname, 177226f3deacStedu roff, rsize, rdata, &init, uio); 177326f3deacStedu ntfs_ntvattrrele(vap); 177426f3deacStedu return (error); 177526f3deacStedu } 177626f3deacStedu 177726f3deacStedu #if UNUSED_CODE 177826f3deacStedu int 17791cc0505dSjsing ntfs_parserun(cn_t *cn, cn_t *cl, u_int8_t *run, u_long len, u_long *off) 178026f3deacStedu { 178126f3deacStedu u_int8_t sz; 178226f3deacStedu int i; 178326f3deacStedu 178426f3deacStedu if (NULL == run) { 178526f3deacStedu printf("ntfs_parsetun: run == NULL\n"); 178626f3deacStedu return (EINVAL); 178726f3deacStedu } 178826f3deacStedu sz = run[(*off)++]; 178926f3deacStedu if (0 == sz) { 179026f3deacStedu printf("ntfs_parserun: trying to go out of run\n"); 179126f3deacStedu return (E2BIG); 179226f3deacStedu } 179326f3deacStedu *cl = 0; 179426f3deacStedu if ((sz & 0xF) > 8 || (*off) + (sz & 0xF) > len) { 179526f3deacStedu printf("ntfs_parserun: " \ 179626f3deacStedu "bad run: length too big: sz: 0x%02x (%ld < %ld + sz)\n", 179726f3deacStedu sz, len, *off); 179826f3deacStedu return (EINVAL); 179926f3deacStedu } 180026f3deacStedu for (i = 0; i < (sz & 0xF); i++) 180126f3deacStedu *cl += (u_int32_t) run[(*off)++] << (i << 3); 180226f3deacStedu 180326f3deacStedu sz >>= 4; 180426f3deacStedu if ((sz & 0xF) > 8 || (*off) + (sz & 0xF) > len) { 180526f3deacStedu printf("ntfs_parserun: " \ 180626f3deacStedu "bad run: length too big: sz: 0x%02x (%ld < %ld + sz)\n", 180726f3deacStedu sz, len, *off); 180826f3deacStedu return (EINVAL); 180926f3deacStedu } 181026f3deacStedu for (i = 0; i < (sz & 0xF); i++) 181126f3deacStedu *cn += (u_int32_t) run[(*off)++] << (i << 3); 181226f3deacStedu 181326f3deacStedu return (0); 181426f3deacStedu } 181526f3deacStedu #endif 181626f3deacStedu 181726f3deacStedu /* 181826f3deacStedu * Process fixup routine on given buffer. 181926f3deacStedu */ 182026f3deacStedu int 18211cc0505dSjsing ntfs_procfixups(struct ntfsmount *ntmp, u_int32_t magic, caddr_t buf, 182226f3deacStedu size_t len) 182326f3deacStedu { 182426f3deacStedu struct fixuphdr *fhp = (struct fixuphdr *) buf; 182526f3deacStedu int i; 182626f3deacStedu u_int16_t fixup; 182726f3deacStedu u_int16_t *fxp; 182826f3deacStedu u_int16_t *cfxp; 182926f3deacStedu 183026f3deacStedu if (fhp->fh_magic != magic) { 183126f3deacStedu printf("ntfs_procfixups: magic doesn't match: %08x != %08x\n", 183226f3deacStedu fhp->fh_magic, magic); 183326f3deacStedu return (EINVAL); 183426f3deacStedu } 183526f3deacStedu if ((fhp->fh_fnum - 1) * ntmp->ntm_bps != len) { 183626f3deacStedu printf("ntfs_procfixups: " \ 183726f3deacStedu "bad fixups number: %d for %ld bytes block\n", 183826f3deacStedu fhp->fh_fnum, (long)len); /* XXX printf kludge */ 183926f3deacStedu return (EINVAL); 184026f3deacStedu } 184126f3deacStedu if (fhp->fh_foff >= ntmp->ntm_spc * ntmp->ntm_mftrecsz * ntmp->ntm_bps) { 184226f3deacStedu printf("ntfs_procfixups: invalid offset: %x", fhp->fh_foff); 184326f3deacStedu return (EINVAL); 184426f3deacStedu } 184526f3deacStedu fxp = (u_int16_t *) (buf + fhp->fh_foff); 184626f3deacStedu cfxp = (u_int16_t *) (buf + ntmp->ntm_bps - 2); 184726f3deacStedu fixup = *fxp++; 184826f3deacStedu for (i = 1; i < fhp->fh_fnum; i++, fxp++) { 184926f3deacStedu if (*cfxp != fixup) { 185026f3deacStedu printf("ntfs_procfixups: fixup %d doesn't match\n", i); 185126f3deacStedu return (EINVAL); 185226f3deacStedu } 185326f3deacStedu *cfxp = *fxp; 1854835c1779Sbrad cfxp = (u_int16_t *)((caddr_t)cfxp + ntmp->ntm_bps); 185526f3deacStedu } 185626f3deacStedu return (0); 185726f3deacStedu } 185826f3deacStedu 185926f3deacStedu #if UNUSED_CODE 186026f3deacStedu int 18611cc0505dSjsing ntfs_runtocn(cn_t *cn, struct ntfsmount *ntmp, u_int8_t *run, u_long len, 186226f3deacStedu cn_t vcn) 186326f3deacStedu { 186426f3deacStedu cn_t ccn = 0; 186526f3deacStedu cn_t ccl = 0; 186626f3deacStedu u_long off = 0; 186726f3deacStedu int error = 0; 186826f3deacStedu 186926f3deacStedu #if NTFS_DEBUG 187026f3deacStedu int i; 1871846c180eSbrad printf("ntfs_runtocn: run: %p, %ld bytes, vcn:%ld\n", 187226f3deacStedu run, len, (u_long) vcn); 187326f3deacStedu printf("ntfs_runtocn: run: "); 187426f3deacStedu for (i = 0; i < len; i++) 187526f3deacStedu printf("0x%02x ", run[i]); 187626f3deacStedu printf("\n"); 187726f3deacStedu #endif 187826f3deacStedu 187926f3deacStedu if (NULL == run) { 188026f3deacStedu printf("ntfs_runtocn: run == NULL\n"); 188126f3deacStedu return (EINVAL); 188226f3deacStedu } 188326f3deacStedu do { 188426f3deacStedu if (run[off] == 0) { 188526f3deacStedu printf("ntfs_runtocn: vcn too big\n"); 188626f3deacStedu return (E2BIG); 188726f3deacStedu } 188826f3deacStedu vcn -= ccl; 188926f3deacStedu error = ntfs_parserun(&ccn, &ccl, run, len, &off); 189026f3deacStedu if (error) { 189126f3deacStedu printf("ntfs_runtocn: ntfs_parserun failed\n"); 189226f3deacStedu return (error); 189326f3deacStedu } 189426f3deacStedu } while (ccl <= vcn); 189526f3deacStedu *cn = ccn + vcn; 189626f3deacStedu return (0); 189726f3deacStedu } 189826f3deacStedu #endif 189926f3deacStedu 190026f3deacStedu /* 1901274476fcStedu * this initializes toupper table & dependant variables to be ready for 1902274476fcStedu * later work 1903274476fcStedu */ 1904274476fcStedu void 19051cc0505dSjsing ntfs_toupper_init(void) 1906274476fcStedu { 1907274476fcStedu ntfs_toupper_tab = (wchar *) NULL; 1908274476fcStedu ntfs_toupper_usecount = 0; 1909274476fcStedu } 1910274476fcStedu 1911274476fcStedu /* 1912274476fcStedu * if the ntfs_toupper_tab[] is filled already, just raise use count; 1913274476fcStedu * otherwise read the data from the filesystem we are currently mounting 191426f3deacStedu */ 191526f3deacStedu int 19161cc0505dSjsing ntfs_toupper_use(struct mount *mp, struct ntfsmount *ntmp, struct proc *p) 191726f3deacStedu { 191826f3deacStedu int error = 0; 191926f3deacStedu struct vnode *vp; 192026f3deacStedu 1921274476fcStedu /* get exclusive access */ 1922274476fcStedu rw_enter_write(&ntfs_toupper_lock); 1923274476fcStedu 192426f3deacStedu /* only read the translation data from a file if it hasn't been 192526f3deacStedu * read already */ 192626f3deacStedu if (ntfs_toupper_tab) 192726f3deacStedu goto out; 192826f3deacStedu 192926f3deacStedu /* 193026f3deacStedu * Read in Unicode lowercase -> uppercase translation file. 193126f3deacStedu * XXX for now, just the first 256 entries are used anyway, 193226f3deacStedu * so don't bother reading more 193326f3deacStedu */ 1934274476fcStedu ntfs_toupper_tab = malloc(256 * 256 * sizeof(wchar), M_NTFSRDATA, 1935274476fcStedu M_WAITOK); 193626f3deacStedu 193726f3deacStedu if ((error = VFS_VGET(mp, NTFS_UPCASEINO, &vp))) 193826f3deacStedu goto out; 1939274476fcStedu error = ntfs_readattr(ntmp, VTONT(vp), NTFS_A_DATA, NULL, 1940274476fcStedu 0, 256*256*sizeof(wchar), (char *) ntfs_toupper_tab, 1941274476fcStedu NULL); 194226f3deacStedu vput(vp); 194326f3deacStedu 1944274476fcStedu out: 1945274476fcStedu ntfs_toupper_usecount++; 1946274476fcStedu rw_exit_write(&ntfs_toupper_lock); 1947274476fcStedu return (error); 1948e7116e76Stedu } 1949e7116e76Stedu 1950274476fcStedu /* 1951274476fcStedu * lower the use count and if it reaches zero, free the memory 1952274476fcStedu * tied by toupper table 1953274476fcStedu */ 1954274476fcStedu void 19551cc0505dSjsing ntfs_toupper_unuse(struct proc *p) 1956274476fcStedu { 1957274476fcStedu /* get exclusive access */ 1958274476fcStedu rw_enter_write(&ntfs_toupper_lock); 1959e7116e76Stedu 1960274476fcStedu ntfs_toupper_usecount--; 1961274476fcStedu if (ntfs_toupper_usecount == 0) { 1962274476fcStedu free(ntfs_toupper_tab, M_NTFSRDATA); 1963274476fcStedu ntfs_toupper_tab = NULL; 1964274476fcStedu } 1965274476fcStedu #ifdef DIAGNOSTIC 1966274476fcStedu else if (ntfs_toupper_usecount < 0) { 1967274476fcStedu panic("ntfs_toupper_unuse(): use count negative: %d", 1968274476fcStedu ntfs_toupper_usecount); 1969274476fcStedu } 1970274476fcStedu #endif 1971274476fcStedu 1972274476fcStedu /* release the lock */ 1973274476fcStedu rw_exit_write(&ntfs_toupper_lock); 197426f3deacStedu } 1975