1 /* $NetBSD: ntfs_subr.c,v 1.23 1999/10/31 19:45:26 jdolecek Exp $ */
4 * Copyright (c) 1998, 1999 Semen Ustimenko (semenu@FreeBSD.org)
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 #include <sys/param.h>
32 #include <sys/types.h>
33 #include <sys/systm.h>
34 #include <sys/namei.h>
35 #include <sys/kernel.h>
36 #include <sys/vnode.h>
37 #include <sys/mount.h>
41 #include <sys/malloc.h>
43 #include <sys/iconv.h>
45 /* #define NTFS_DEBUG 1 */
46 #include <fs/ntfs/ntfs.h>
47 #include <fs/ntfs/ntfsmount.h>
48 #include <fs/ntfs/ntfs_inode.h>
49 #include <fs/ntfs/ntfs_vfsops.h>
50 #include <fs/ntfs/ntfs_subr.h>
51 #include <fs/ntfs/ntfs_compr.h>
52 #include <fs/ntfs/ntfs_ihash.h>
54 MALLOC_DEFINE(M_NTFSNTVATTR, "ntfs_vattr", "NTFS file attribute information");
55 MALLOC_DEFINE(M_NTFSRDATA, "ntfsd_resdata", "NTFS resident data");
56 MALLOC_DEFINE(M_NTFSRUN, "ntfs_vrun", "NTFS vrun storage");
57 MALLOC_DEFINE(M_NTFSDECOMP, "ntfs_decomp", "NTFS decompression temporary");
59 static int ntfs_ntlookupattr(struct ntfsmount *, const char *, int, int *, char **);
60 static int ntfs_findvattr(struct ntfsmount *, struct ntnode *, struct ntvattr **, struct ntvattr **, u_int32_t, const char *, size_t, cn_t);
61 static int ntfs_uastricmp(struct ntfsmount *, const wchar *, size_t, const char *, size_t);
62 static int ntfs_uastrcmp(struct ntfsmount *, const wchar *, size_t, const char *, size_t);
64 /* table for mapping Unicode chars into uppercase; it's filled upon first
65 * ntfs mount, freed upon last ntfs umount */
66 static wchar *ntfs_toupper_tab;
67 #define NTFS_TOUPPER(ch) (ntfs_toupper_tab[(ch)])
68 static struct lock ntfs_toupper_lock;
69 static signed int ntfs_toupper_usecount;
71 struct iconv_functions *ntfs_iconv = NULL;
73 /* support macro for ntfs_ntvattrget() */
74 #define NTFS_AALPCMP(aalp,type,name,namelen) ( \
75 (aalp->al_type == type) && (aalp->al_namelen == namelen) && \
76 !NTFS_UASTRCMP(aalp->al_name,aalp->al_namelen,name,namelen) )
85 dprintf(("ntfs_ntvattrrele: ino: %d, type: 0x%x\n",
86 vap->va_ip->i_number, vap->va_type));
88 ntfs_ntrele(vap->va_ip);
94 * find the attribute in the ntnode
97 ntfs_findvattr(ntmp, ip, lvapp, vapp, type, name, namelen, vcn)
98 struct ntfsmount *ntmp;
100 struct ntvattr **lvapp, **vapp;
109 if((ip->i_flag & IN_LOADED) == 0) {
110 dprintf(("ntfs_findvattr: node not loaded, ino: %d\n",
112 error = ntfs_loadntnode(ntmp,ip);
114 printf("ntfs_findvattr: FAILED TO LOAD INO: %d\n",
122 LIST_FOREACH(vap, &ip->i_valist, va_list) {
123 ddprintf(("ntfs_findvattr: type: 0x%x, vcn: %d - %d\n", \
124 vap->va_type, (u_int32_t) vap->va_vcnstart, \
125 (u_int32_t) vap->va_vcnend));
126 if ((vap->va_type == type) &&
127 (vap->va_vcnstart <= vcn) && (vap->va_vcnend >= vcn) &&
128 (vap->va_namelen == namelen) &&
129 (strncmp(name, vap->va_name, namelen) == 0)) {
131 ntfs_ntref(vap->va_ip);
134 if (vap->va_type == NTFS_A_ATTRLIST)
142 * Search attribute specifed in ntnode (load ntnode if nessecary).
143 * If not found but ATTR_A_ATTRLIST present, read it in and search throught.
144 * VOP_VGET node needed, and lookup througth it's ntnode (load if nessesary).
146 * ntnode should be locked
150 struct ntfsmount * ntmp,
155 struct ntvattr ** vapp)
157 struct ntvattr *lvap = NULL;
158 struct attr_attrlist *aalp;
159 struct attr_attrlist *nextaalp;
161 struct ntnode *newip;
169 dprintf(("ntfs_ntvattrget: " \
170 "ino: %d, type: 0x%x, name: %s, vcn: %d\n", \
171 ip->i_number, type, name, (u_int32_t) vcn));
172 namelen = strlen(name);
174 dprintf(("ntfs_ntvattrget: " \
175 "ino: %d, type: 0x%x, vcn: %d\n", \
176 ip->i_number, type, (u_int32_t) vcn));
181 error = ntfs_findvattr(ntmp, ip, &lvap, vapp, type, name, namelen, vcn);
186 dprintf(("ntfs_ntvattrget: UNEXISTED ATTRIBUTE: " \
187 "ino: %d, type: 0x%x, name: %s, vcn: %d\n", \
188 ip->i_number, type, name, (u_int32_t) vcn));
191 /* Scan $ATTRIBUTE_LIST for requested attribute */
192 len = lvap->va_datalen;
193 alpool = malloc(len, M_TEMP, M_WAITOK);
194 error = ntfs_readntvattr_plain(ntmp, ip, lvap, 0, len, alpool, &len,
199 aalp = (struct attr_attrlist *) alpool;
202 for(; len > 0; aalp = nextaalp) {
203 dprintf(("ntfs_ntvattrget: " \
204 "attrlist: ino: %d, attr: 0x%x, vcn: %d\n", \
205 aalp->al_inumber, aalp->al_type, \
206 (u_int32_t) aalp->al_vcnstart));
208 if (len > aalp->reclen) {
209 nextaalp = NTFS_NEXTREC(aalp, struct attr_attrlist *);
215 if (!NTFS_AALPCMP(aalp, type, name, namelen) ||
216 (nextaalp && (nextaalp->al_vcnstart <= vcn) &&
217 NTFS_AALPCMP(nextaalp, type, name, namelen)))
220 dprintf(("ntfs_ntvattrget: attribute in ino: %d\n",
223 /* this is not a main record, so we can't use just plain
225 error = ntfs_vgetex(ntmp->ntm_mountp, aalp->al_inumber,
226 NTFS_A_DATA, NULL, LK_EXCLUSIVE,
227 VG_EXT, curthread, &newvp);
229 printf("ntfs_ntvattrget: CAN'T VGET INO: %d\n",
233 newip = VTONT(newvp);
234 /* XXX have to lock ntnode */
235 error = ntfs_findvattr(ntmp, newip, &lvap, vapp,
236 type, name, namelen, vcn);
240 printf("ntfs_ntvattrget: ATTRLIST ERROR.\n");
245 dprintf(("ntfs_ntvattrget: UNEXISTED ATTRIBUTE: " \
246 "ino: %d, type: 0x%x, name: %.*s, vcn: %d\n", \
247 ip->i_number, type, (int) namelen, name, (u_int32_t) vcn));
249 free(alpool, M_TEMP);
254 * Read ntnode from disk, make ntvattr list.
256 * ntnode should be locked
260 struct ntfsmount * ntmp,
263 struct filerec *mfrp;
267 struct ntvattr *nvap;
269 dprintf(("ntfs_loadntnode: loading ino: %d\n",ip->i_number));
271 mfrp = malloc(ntfs_bntob(ntmp->ntm_bpmftrec),
274 if (ip->i_number < NTFS_SYSNODESNUM) {
277 dprintf(("ntfs_loadntnode: read system node\n"));
279 bn = ntfs_cntobn(ntmp->ntm_mftcn) +
280 ntmp->ntm_bpmftrec * ip->i_number;
281 bn *= ntmp->ntm_multiplier;
283 error = bread(ntmp->ntm_devvp,
284 bn, ntfs_bntob(ntmp->ntm_bpmftrec),
287 printf("ntfs_loadntnode: BREAD FAILED\n");
291 memcpy(mfrp, bp->b_data, ntfs_bntob(ntmp->ntm_bpmftrec));
296 vp = ntmp->ntm_sysvn[NTFS_MFTINO];
297 error = ntfs_readattr(ntmp, VTONT(vp), NTFS_A_DATA, NULL,
298 ip->i_number * ntfs_bntob(ntmp->ntm_bpmftrec),
299 ntfs_bntob(ntmp->ntm_bpmftrec), mfrp, NULL);
301 printf("ntfs_loadntnode: ntfs_readattr failed\n");
306 /* Check if magic and fixups are correct */
307 error = ntfs_procfixups(ntmp, NTFS_FILEMAGIC, (caddr_t)mfrp,
308 ntfs_bntob(ntmp->ntm_bpmftrec));
310 printf("ntfs_loadntnode: BAD MFT RECORD %d\n",
311 (u_int32_t) ip->i_number);
315 dprintf(("ntfs_loadntnode: load attrs for ino: %d\n",ip->i_number));
316 off = mfrp->fr_attroff;
317 ap = (struct attr *) ((caddr_t)mfrp + off);
319 LIST_INIT(&ip->i_valist);
321 while (ap->a_hdr.a_type != -1) {
322 error = ntfs_attrtontvattr(ntmp, &nvap, ap);
327 LIST_INSERT_HEAD(&ip->i_valist, nvap, va_list);
329 off += ap->a_hdr.reclen;
330 ap = (struct attr *) ((caddr_t)mfrp + off);
333 printf("ntfs_loadntnode: failed to load attr ino: %d\n",
338 ip->i_mainrec = mfrp->fr_mainrec;
339 ip->i_nlink = mfrp->fr_nlink;
340 ip->i_frflag = mfrp->fr_flags;
342 ip->i_flag |= IN_LOADED;
350 * Routine locks ntnode and increase usecount, just opposite of
357 dprintf(("ntfs_ntget: get ntnode %d: %p, usecount: %d\n",
358 ip->i_number, ip, ip->i_usecount));
360 mtx_lock(&ip->i_interlock);
362 lockmgr(&ip->i_lock, LK_EXCLUSIVE | LK_INTERLOCK, &ip->i_interlock);
368 * Routine search ntnode in hash, if found: lock, inc usecount and return.
369 * If not in hash allocate structure for ntnode, prefill it, lock,
370 * inc count and return.
372 * ntnode returned locked
376 struct ntfsmount * ntmp,
378 struct ntnode ** ipp)
382 dprintf(("ntfs_ntlookup: looking for ntnode %d\n", ino));
385 ip = ntfs_nthashlookup(ntmp->ntm_devvp->v_rdev, ino);
388 dprintf(("ntfs_ntlookup: ntnode %d: %p, usecount: %d\n",
389 ino, ip, ip->i_usecount));
393 } while (lockmgr(&ntfs_hashlock, LK_EXCLUSIVE | LK_SLEEPFAIL, NULL));
395 ip = malloc(sizeof(struct ntnode), M_NTFSNTNODE,
397 ddprintf(("ntfs_ntlookup: allocating ntnode: %d: %p\n", ino, ip));
399 /* Generic initialization */
400 ip->i_devvp = ntmp->ntm_devvp;
401 ip->i_dev = ntmp->ntm_devvp->v_rdev;
405 LIST_INIT(&ip->i_fnlist);
408 /* init lock and lock the newborn ntnode */
409 lockinit(&ip->i_lock, PINOD, "ntnode", 0, 0);
410 mtx_init(&ip->i_interlock, "ntnode interlock", NULL, MTX_DEF);
415 lockmgr(&ntfs_hashlock, LK_RELEASE, NULL);
419 dprintf(("ntfs_ntlookup: ntnode %d: %p, usecount: %d\n",
420 ino, ip, ip->i_usecount));
426 * Decrement usecount of ntnode and unlock it, if usecount reach zero,
429 * ntnode should be locked on entry, and unlocked on return.
437 dprintf(("ntfs_ntput: rele ntnode %d: %p, usecount: %d\n",
438 ip->i_number, ip, ip->i_usecount));
440 mtx_lock(&ip->i_interlock);
444 if (ip->i_usecount < 0) {
445 panic("ntfs_ntput: ino: %d usecount: %d \n",
446 ip->i_number,ip->i_usecount);
450 if (ip->i_usecount > 0) {
451 lockmgr(&ip->i_lock, LK_RELEASE|LK_INTERLOCK, &ip->i_interlock);
455 dprintf(("ntfs_ntput: deallocating ntnode: %d\n", ip->i_number));
457 if (LIST_FIRST(&ip->i_fnlist))
458 panic("ntfs_ntput: ntnode has fnodes\n");
462 while ((vap = LIST_FIRST(&ip->i_valist)) != NULL) {
463 LIST_REMOVE(vap,va_list);
464 ntfs_freentvattr(vap);
466 lockmgr(&ip->i_lock, LK_RELEASE | LK_INTERLOCK, &ip->i_interlock);
467 mtx_destroy(&ip->i_interlock);
468 lockdestroy(&ip->i_lock);
470 free(ip, M_NTFSNTNODE);
474 * increment usecount of ntnode
480 mtx_lock(&ip->i_interlock);
482 mtx_unlock(&ip->i_interlock);
484 dprintf(("ntfs_ntref: ino %d, usecount: %d\n",
485 ip->i_number, ip->i_usecount));
490 * Decrement usecount of ntnode.
496 dprintf(("ntfs_ntrele: rele ntnode %d: %p, usecount: %d\n",
497 ip->i_number, ip, ip->i_usecount));
499 mtx_lock(&ip->i_interlock);
502 if (ip->i_usecount < 0)
503 panic("ntfs_ntrele: ino: %d usecount: %d \n",
504 ip->i_number,ip->i_usecount);
505 mtx_unlock(&ip->i_interlock);
509 * Deallocate all memory allocated for ntvattr
512 ntfs_freentvattr(vap)
513 struct ntvattr * vap;
515 if (vap->va_flag & NTFS_AF_INRUN) {
517 free(vap->va_vruncn, M_NTFSRUN);
519 free(vap->va_vruncl, M_NTFSRUN);
522 free(vap->va_datap, M_NTFSRDATA);
524 free(vap, M_NTFSNTVATTR);
528 * Convert disk image of attribute into ntvattr structure,
529 * runs are expanded also.
533 struct ntfsmount * ntmp,
534 struct ntvattr ** rvapp,
543 vap = malloc(sizeof(struct ntvattr),
544 M_NTFSNTVATTR, M_WAITOK | M_ZERO);
546 vap->va_flag = rap->a_hdr.a_flag;
547 vap->va_type = rap->a_hdr.a_type;
548 vap->va_compression = rap->a_hdr.a_compression;
549 vap->va_index = rap->a_hdr.a_index;
551 ddprintf(("type: 0x%x, index: %d", vap->va_type, vap->va_index));
553 vap->va_namelen = rap->a_hdr.a_namelen;
554 if (rap->a_hdr.a_namelen) {
555 wchar *unp = (wchar *) ((caddr_t) rap + rap->a_hdr.a_nameoff);
556 ddprintf((", name:["));
557 for (i = 0; i < vap->va_namelen; i++) {
558 vap->va_name[i] = unp[i];
559 ddprintf(("%c", vap->va_name[i]));
563 if (vap->va_flag & NTFS_AF_INRUN) {
564 ddprintf((", nonres."));
565 vap->va_datalen = rap->a_nr.a_datalen;
566 vap->va_allocated = rap->a_nr.a_allocated;
567 vap->va_vcnstart = rap->a_nr.a_vcnstart;
568 vap->va_vcnend = rap->a_nr.a_vcnend;
569 vap->va_compressalg = rap->a_nr.a_compressalg;
570 error = ntfs_runtovrun(&(vap->va_vruncn), &(vap->va_vruncl),
572 (caddr_t) rap + rap->a_nr.a_dataoff);
574 vap->va_compressalg = 0;
575 ddprintf((", res."));
576 vap->va_datalen = rap->a_r.a_datalen;
577 vap->va_allocated = rap->a_r.a_datalen;
578 vap->va_vcnstart = 0;
579 vap->va_vcnend = ntfs_btocn(vap->va_allocated);
580 vap->va_datap = malloc(vap->va_datalen,
581 M_NTFSRDATA, M_WAITOK);
582 memcpy(vap->va_datap, (caddr_t) rap + rap->a_r.a_dataoff,
585 ddprintf((", len: %lld", vap->va_datalen));
588 free(vap, M_NTFSNTVATTR);
598 * Expand run into more utilizable and more memory eating format.
619 off += (run[off] & 0xF) + ((run[off] >> 4) & 0xF) + 1;
622 cn = malloc(cnt * sizeof(cn_t), M_NTFSRUN, M_WAITOK);
623 cl = malloc(cnt * sizeof(cn_t), M_NTFSRUN, M_WAITOK);
633 for (i = 0; i < (sz & 0xF); i++)
634 cl[cnt] += (u_int32_t) run[off++] << (i << 3);
637 if (run[off + sz - 1] & 0x80) {
638 tmp = ((u_int64_t) - 1) << (sz << 3);
639 for (i = 0; i < sz; i++)
640 tmp |= (u_int64_t) run[off++] << (i << 3);
643 for (i = 0; i < sz; i++)
644 tmp |= (u_int64_t) run[off++] << (i << 3);
647 prev = cn[cnt] = prev + tmp;
660 * Compare unicode and ascii string case insens.
663 ntfs_uastricmp(ntmp, ustr, ustrlen, astr, astrlen)
664 struct ntfsmount *ntmp;
671 size_t i, j, mbstrlen = astrlen;
675 if (ntmp->ntm_ic_l2u) {
676 for (i = 0, j = 0; i < ustrlen && j < astrlen; i++, j++) {
677 if (j < astrlen -1) {
678 wc = (wchar)astr[j]<<8 | (astr[j+1]&0xFF);
681 wc = (wchar)astr[j]<<8 & 0xFF00;
684 res = ((int) NTFS_TOUPPER(ustr[i])) -
685 ((int)NTFS_TOUPPER(NTFS_82U(wc, &len)));
694 * We use NTFS_82U(NTFS_U28(c)) to get rid of unicode
695 * symbols not covered by translation table
697 for (i = 0; i < ustrlen && i < astrlen; i++) {
698 res = ((int) NTFS_TOUPPER(NTFS_82U(NTFS_U28(ustr[i]), &len))) -
699 ((int)NTFS_TOUPPER(NTFS_82U((wchar)astr[i], &len)));
704 return (ustrlen - mbstrlen);
708 * Compare unicode and ascii string case sens.
711 ntfs_uastrcmp(ntmp, ustr, ustrlen, astr, astrlen)
712 struct ntfsmount *ntmp;
719 size_t i, j, mbstrlen = astrlen;
723 for (i = 0, j = 0; (i < ustrlen) && (j < astrlen); i++, j++) {
725 wc = NTFS_U28(ustr[i]);
728 if (u != '\0' && j < astrlen -1) {
729 res = (int) (u - astr[j++]);
732 res = (res<<8) + (int) (l - astr[j]);
736 return (ustrlen - mbstrlen);
740 * Search fnode in ntnode, if not found allocate and preinitialize.
742 * ntnode should be locked on entry.
746 struct ntfsmount *ntmp,
754 dprintf(("ntfs_fget: ino: %d, attrtype: 0x%x, attrname: %s\n",
755 ip->i_number,attrtype, attrname?attrname:""));
757 LIST_FOREACH(fp, &ip->i_fnlist, f_fnlist){
758 dprintf(("ntfs_fget: fnode: attrtype: %d, attrname: %s\n",
759 fp->f_attrtype, fp->f_attrname?fp->f_attrname:""));
761 if ((attrtype == fp->f_attrtype) &&
762 ((!attrname && !fp->f_attrname) ||
763 (attrname && fp->f_attrname &&
764 !strcmp(attrname,fp->f_attrname)))){
765 dprintf(("ntfs_fget: found existed: %p\n",fp));
773 fp = malloc(sizeof(struct fnode), M_NTFSFNODE,
775 dprintf(("ntfs_fget: allocating fnode: %p\n",fp));
779 fp->f_flag |= FN_AATTRNAME;
780 fp->f_attrname = malloc(strlen(attrname)+1, M_TEMP, M_WAITOK);
781 strcpy(fp->f_attrname, attrname);
783 fp->f_attrname = NULL;
784 fp->f_attrtype = attrtype;
788 LIST_INSERT_HEAD(&ip->i_fnlist, fp, f_fnlist);
796 * Deallocate fnode, remove it from ntnode's fnode list.
798 * ntnode should be locked.
804 struct ntnode *ip = FTONT(fp);
806 dprintf(("ntfs_frele: fnode: %p for %d: %p\n", fp, ip->i_number, ip));
808 dprintf(("ntfs_frele: deallocating fnode\n"));
809 LIST_REMOVE(fp,f_fnlist);
810 if (fp->f_flag & FN_AATTRNAME)
811 free(fp->f_attrname, M_TEMP);
813 free(fp->f_dirblbuf, M_NTFSDIR);
814 free(fp, M_NTFSFNODE);
819 * Lookup attribute name in format: [[:$ATTR_TYPE]:$ATTR_NAME],
820 * $ATTR_TYPE is searched in attrdefs read from $AttrDefs.
821 * If $ATTR_TYPE nott specifed, ATTR_A_DATA assumed.
825 struct ntfsmount * ntmp,
833 struct ntvattrdef *adp;
838 if (name[0] == '$') {
840 for (syslen = 0; syslen < namelen; syslen++) {
841 if(sys[syslen] == ':') {
851 for (i = 0; i < ntmp->ntm_adnum; i++, adp++){
852 if (syslen != adp->ad_namelen ||
853 strncmp(sys, adp->ad_name, syslen) != 0)
856 *attrtype = adp->ad_type;
861 *attrtype = NTFS_A_DATA;
865 (*attrname) = malloc(namelen, M_TEMP, M_WAITOK);
866 memcpy((*attrname), name, namelen);
867 (*attrname)[namelen] = '\0';
874 * Lookup specifed node for filename, matching cnp,
875 * return fnode filled.
879 struct ntfsmount * ntmp,
881 struct componentname * cnp,
884 struct fnode *fp = VTOF(vp);
885 struct ntnode *ip = FTONT(fp);
886 struct ntvattr *vap; /* Root attribute */
887 cn_t cn; /* VCN in current attribute */
888 caddr_t rdbuf; /* Buffer to read directory's blocks */
890 u_int64_t rdsize; /* Length of data to read from current block */
891 struct attr_indexentry *iep;
892 int error, res, anamelen, fnamelen;
893 const char *fname,*aname;
895 int attrtype = NTFS_A_DATA;
896 char *attrname = NULL;
901 error = ntfs_ntget(ip);
905 error = ntfs_ntvattrget(ntmp, ip, NTFS_A_INDXROOT, "$I30", 0, &vap);
906 if (error || (vap->va_flag & NTFS_AF_INRUN))
909 blsize = vap->va_a_iroot->ir_size;
910 rdsize = vap->va_datalen;
913 * Divide file name into: foofilefoofilefoofile[:attrspec]
914 * Store like this: fname:fnamelen [aname:anamelen]
916 fname = cnp->cn_nameptr;
919 for (fnamelen = 0; fnamelen < cnp->cn_namelen; fnamelen++)
920 if(fname[fnamelen] == ':') {
921 aname = fname + fnamelen + 1;
922 anamelen = cnp->cn_namelen - fnamelen - 1;
923 dprintf(("ntfs_ntlookupfile: %s (%d), attr: %s (%d)\n",
924 fname, fnamelen, aname, anamelen));
928 dprintf(("ntfs_ntlookupfile: blksz: %d, rdsz: %jd\n", blsize, rdsize));
930 rdbuf = malloc(blsize, M_TEMP, M_WAITOK);
932 error = ntfs_readattr(ntmp, ip, NTFS_A_INDXROOT, "$I30",
933 0, rdsize, rdbuf, NULL);
937 aoff = sizeof(struct attr_indexroot);
940 iep = (struct attr_indexentry *) (rdbuf + aoff);
942 for (; !(iep->ie_flag & NTFS_IEFLAG_LAST) && (rdsize > aoff);
944 iep = (struct attr_indexentry *) (rdbuf + aoff))
946 ddprintf(("scan: %d, %d\n",
947 (u_int32_t) iep->ie_number,
948 (u_int32_t) iep->ie_fnametype));
950 /* check the name - the case-insensitible check
951 * has to come first, to break from this for loop
952 * if needed, so we can dive correctly */
953 res = NTFS_UASTRICMP(iep->ie_fname, iep->ie_fnamelen,
956 if (res < 0) continue;
958 if (iep->ie_fnametype == 0 ||
959 !(ntmp->ntm_flag & NTFS_MFLAG_CASEINS))
961 res = NTFS_UASTRCMP(iep->ie_fname,
962 iep->ie_fnamelen, fname, fnamelen);
963 if (res != 0) continue;
967 error = ntfs_ntlookupattr(ntmp,
969 &attrtype, &attrname);
974 /* Check if we've found ourself */
975 if ((iep->ie_number == ip->i_number) &&
976 (attrtype == fp->f_attrtype) &&
977 ((!attrname && !fp->f_attrname) ||
978 (attrname && fp->f_attrname &&
979 !strcmp(attrname, fp->f_attrname))))
987 /* vget node, but don't load it */
988 error = ntfs_vgetex(ntmp->ntm_mountp,
989 iep->ie_number, attrtype, attrname,
990 LK_EXCLUSIVE, VG_DONTLOADIN | VG_DONTVALIDFN,
993 /* free the buffer returned by ntfs_ntlookupattr() */
995 free(attrname, M_TEMP);
1004 if (nfp->f_flag & FN_VALID) {
1009 nfp->f_fflag = iep->ie_fflag;
1010 nfp->f_pnumber = iep->ie_fpnumber;
1011 nfp->f_times = iep->ie_ftimes;
1013 if((nfp->f_fflag & NTFS_FFLAG_DIR) &&
1014 (nfp->f_attrtype == NTFS_A_DATA) &&
1015 (nfp->f_attrname == NULL))
1020 nvp->v_type = f_type;
1022 if ((nfp->f_attrtype == NTFS_A_DATA) &&
1023 (nfp->f_attrname == NULL))
1025 /* Opening default attribute */
1026 nfp->f_size = iep->ie_fsize;
1027 nfp->f_allocated = iep->ie_fallocated;
1028 nfp->f_flag |= FN_PRELOADED;
1030 error = ntfs_filesize(ntmp, nfp,
1031 &nfp->f_size, &nfp->f_allocated);
1038 nfp->f_flag &= ~FN_VALID;
1043 /* Dive if possible */
1044 if (iep->ie_flag & NTFS_IEFLAG_SUBNODE) {
1045 dprintf(("ntfs_ntlookupfile: diving\n"));
1047 cn = *(cn_t *) (rdbuf + aoff +
1048 iep->reclen - sizeof(cn_t));
1051 error = ntfs_readattr(ntmp, ip, NTFS_A_INDX, "$I30",
1052 ntfs_cntob(cn), rdsize, rdbuf, NULL);
1056 error = ntfs_procfixups(ntmp, NTFS_INDXMAGIC,
1061 aoff = (((struct attr_indexalloc *) rdbuf)->ia_hdrsize +
1064 dprintf(("ntfs_ntlookupfile: nowhere to dive :-(\n"));
1070 dprintf(("finish\n"));
1073 if (attrname) free(attrname, M_TEMP);
1074 ntfs_ntvattrrele(vap);
1076 free(rdbuf, M_TEMP);
1081 * Check if name type is permitted to show.
1084 ntfs_isnamepermitted(
1085 struct ntfsmount * ntmp,
1086 struct attr_indexentry * iep)
1088 if (ntmp->ntm_flag & NTFS_MFLAG_ALLNAMES)
1091 switch (iep->ie_fnametype) {
1093 ddprintf(("ntfs_isnamepermitted: skipped DOS name\n"));
1095 case 0: case 1: case 3:
1098 printf("ntfs_isnamepermitted: " \
1099 "WARNING! Unknown file name type: %d\n",
1107 * Read ntfs dir like stream of attr_indexentry, not like btree of them.
1108 * This is done by scaning $BITMAP:$I30 for busy clusters and reading them.
1109 * Ofcouse $INDEX_ROOT:$I30 is read before. Last read values are stored in
1110 * fnode, so we can skip toward record number num almost immediatly.
1111 * Anyway this is rather slow routine. The problem is that we don't know
1112 * how many records are there in $INDEX_ALLOCATION:$I30 block.
1116 struct ntfsmount * ntmp,
1119 struct attr_indexentry ** riepp)
1121 struct ntnode *ip = FTONT(fp);
1122 struct ntvattr *vap = NULL; /* IndexRoot attribute */
1123 struct ntvattr *bmvap = NULL; /* BitMap attribute */
1124 struct ntvattr *iavap = NULL; /* IndexAllocation attribute */
1125 caddr_t rdbuf; /* Buffer to read directory's blocks */
1126 u_int8_t *bmp = NULL; /* Bitmap */
1127 u_int32_t blsize; /* Index allocation size (2048) */
1128 u_int32_t rdsize; /* Length of data to read */
1129 u_int32_t attrnum; /* Current attribute type */
1130 u_int32_t cpbl = 1; /* Clusters per directory block */
1132 struct attr_indexentry *iep;
1134 u_int32_t aoff, cnum;
1136 dprintf(("ntfs_ntreaddir: read ino: %d, num: %d\n", ip->i_number, num));
1137 error = ntfs_ntget(ip);
1141 error = ntfs_ntvattrget(ntmp, ip, NTFS_A_INDXROOT, "$I30", 0, &vap);
1145 if (fp->f_dirblbuf == NULL) {
1146 fp->f_dirblsz = vap->va_a_iroot->ir_size;
1147 fp->f_dirblbuf = malloc(max(vap->va_datalen,fp->f_dirblsz),
1148 M_NTFSDIR, M_WAITOK);
1151 blsize = fp->f_dirblsz;
1152 rdbuf = fp->f_dirblbuf;
1154 dprintf(("ntfs_ntreaddir: rdbuf: %p, blsize: %d\n", rdbuf, blsize));
1156 if (vap->va_a_iroot->ir_flag & NTFS_IRFLAG_INDXALLOC) {
1157 error = ntfs_ntvattrget(ntmp, ip, NTFS_A_INDXBITMAP, "$I30",
1163 bmp = malloc(bmvap->va_datalen, M_TEMP, M_WAITOK);
1164 error = ntfs_readattr(ntmp, ip, NTFS_A_INDXBITMAP, "$I30", 0,
1165 bmvap->va_datalen, bmp, NULL);
1169 error = ntfs_ntvattrget(ntmp, ip, NTFS_A_INDX, "$I30",
1175 cpbl = ntfs_btocn(blsize + ntfs_cntob(1) - 1);
1176 dprintf(("ntfs_ntreaddir: indexalloc: %jd, cpbl: %d\n",
1177 iavap->va_datalen, cpbl));
1179 dprintf(("ntfs_ntreadidir: w/o BitMap and IndexAllocation\n"));
1180 iavap = bmvap = NULL;
1184 /* Try use previous values */
1185 if ((fp->f_lastdnum < num) && (fp->f_lastdnum != 0)) {
1186 attrnum = fp->f_lastdattr;
1187 aoff = fp->f_lastdoff;
1188 blnum = fp->f_lastdblnum;
1189 cnum = fp->f_lastdnum;
1191 attrnum = NTFS_A_INDXROOT;
1192 aoff = sizeof(struct attr_indexroot);
1198 dprintf(("ntfs_ntreaddir: scan: 0x%x, %d, %d, %d, %d\n",
1199 attrnum, (u_int32_t) blnum, cnum, num, aoff));
1200 rdsize = (attrnum == NTFS_A_INDXROOT) ? vap->va_datalen : blsize;
1201 error = ntfs_readattr(ntmp, ip, attrnum, "$I30",
1202 ntfs_cntob(blnum * cpbl), rdsize, rdbuf, NULL);
1206 if (attrnum == NTFS_A_INDX) {
1207 error = ntfs_procfixups(ntmp, NTFS_INDXMAGIC,
1213 aoff = (attrnum == NTFS_A_INDX) ?
1214 (0x18 + ((struct attr_indexalloc *) rdbuf)->ia_hdrsize) :
1215 sizeof(struct attr_indexroot);
1217 iep = (struct attr_indexentry *) (rdbuf + aoff);
1218 for (; !(iep->ie_flag & NTFS_IEFLAG_LAST) && (rdsize > aoff);
1219 aoff += iep->reclen,
1220 iep = (struct attr_indexentry *) (rdbuf + aoff))
1222 if (!ntfs_isnamepermitted(ntmp, iep)) continue;
1225 fp->f_lastdnum = cnum;
1226 fp->f_lastdoff = aoff;
1227 fp->f_lastdblnum = blnum;
1228 fp->f_lastdattr = attrnum;
1239 if (attrnum == NTFS_A_INDXROOT)
1244 while (ntfs_cntob(blnum * cpbl) < iavap->va_datalen) {
1245 if (bmp[blnum >> 3] & (1 << (blnum & 7)))
1250 attrnum = NTFS_A_INDX;
1252 if (ntfs_cntob(blnum * cpbl) >= iavap->va_datalen)
1254 dprintf(("ntfs_ntreaddir: blnum: %d\n", (u_int32_t) blnum));
1263 ntfs_ntvattrrele(vap);
1265 ntfs_ntvattrrele(bmvap);
1267 ntfs_ntvattrrele(iavap);
1275 * Convert NTFS times that are in 100 ns units and begins from
1276 * 1601 Jan 1 into unix times.
1284 /* WindowNT times are in 100 ns and from 1601 Jan 1 */
1285 t.tv_nsec = (nt % (1000 * 1000 * 10)) * 100;
1286 t.tv_sec = nt / (1000 * 1000 * 10) -
1287 369LL * 365LL * 24LL * 60LL * 60LL -
1288 89LL * 1LL * 24LL * 60LL * 60LL;
1293 * Get file times from NTFS_A_NAME attribute.
1297 struct ntfsmount * ntmp,
1301 struct ntvattr *vap;
1304 dprintf(("ntfs_times: ino: %d...\n", ip->i_number));
1306 error = ntfs_ntget(ip);
1310 error = ntfs_ntvattrget(ntmp, ip, NTFS_A_NAME, NULL, 0, &vap);
1315 *tm = vap->va_a_name->n_times;
1316 ntfs_ntvattrrele(vap);
1323 * Get file sizes from corresponding attribute.
1325 * ntnode under fnode should be locked.
1329 struct ntfsmount * ntmp,
1334 struct ntvattr *vap;
1335 struct ntnode *ip = FTONT(fp);
1339 dprintf(("ntfs_filesize: ino: %d\n", ip->i_number));
1341 error = ntfs_ntvattrget(ntmp, ip,
1342 fp->f_attrtype, fp->f_attrname, 0, &vap);
1346 bn = vap->va_allocated;
1347 sz = vap->va_datalen;
1349 dprintf(("ntfs_filesize: %d bytes (%d bytes allocated)\n",
1350 (u_int32_t) sz, (u_int32_t) bn));
1357 ntfs_ntvattrrele(vap);
1363 * This is one of write routine.
1366 ntfs_writeattr_plain(
1367 struct ntfsmount * ntmp,
1379 off_t off = roff, left = rsize, towrite;
1380 caddr_t data = rdata;
1381 struct ntvattr *vap;
1385 error = ntfs_ntvattrget(ntmp, ip, attrnum, attrname,
1386 ntfs_btocn(off), &vap);
1389 towrite = MIN(left, ntfs_cntob(vap->va_vcnend + 1) - off);
1390 ddprintf(("ntfs_writeattr_plain: o: %d, s: %d (%d - %d)\n",
1391 (u_int32_t) off, (u_int32_t) towrite,
1392 (u_int32_t) vap->va_vcnstart,
1393 (u_int32_t) vap->va_vcnend));
1394 error = ntfs_writentvattr_plain(ntmp, ip, vap,
1395 off - ntfs_cntob(vap->va_vcnstart),
1396 towrite, data, &init, uio);
1398 printf("ntfs_writeattr_plain: " \
1399 "ntfs_writentvattr_plain failed: o: %d, s: %d\n",
1400 (u_int32_t) off, (u_int32_t) towrite);
1401 printf("ntfs_writeattr_plain: attrib: %d - %d\n",
1402 (u_int32_t) vap->va_vcnstart,
1403 (u_int32_t) vap->va_vcnend);
1404 ntfs_ntvattrrele(vap);
1407 ntfs_ntvattrrele(vap);
1410 data = data + towrite;
1418 * This is one of write routine.
1420 * ntnode should be locked.
1423 ntfs_writentvattr_plain(
1424 struct ntfsmount * ntmp,
1426 struct ntvattr * vap,
1436 cn_t ccn, ccl, cn, left, cl;
1437 caddr_t data = rdata;
1443 if ((vap->va_flag & NTFS_AF_INRUN) == 0) {
1444 printf("ntfs_writevattr_plain: CAN'T WRITE RES. ATTRIBUTE\n");
1448 ddprintf(("ntfs_writentvattr_plain: data in run: %ld chains\n",
1456 for (; left && (cnt < vap->va_vruncnt); cnt++) {
1457 ccn = vap->va_vruncn[cnt];
1458 ccl = vap->va_vruncl[cnt];
1460 ddprintf(("ntfs_writentvattr_plain: " \
1461 "left %d, cn: 0x%x, cl: %d, off: %d\n", \
1462 (u_int32_t) left, (u_int32_t) ccn, \
1463 (u_int32_t) ccl, (u_int32_t) off));
1465 if (ntfs_cntob(ccl) < off) {
1466 off -= ntfs_cntob(ccl);
1470 if (!ccn && ip->i_number != NTFS_BOOTINO)
1473 ccl -= ntfs_btocn(off);
1474 cn = ccn + ntfs_btocn(off);
1475 off = ntfs_btocnoff(off);
1477 while (left && ccl) {
1479 * Always read and write single clusters at a time -
1480 * we need to avoid requesting differently-sized
1481 * blocks at the same disk offsets to avoid
1482 * confusing the buffer cache.
1484 tocopy = MIN(left, ntfs_cntob(1) - off);
1485 cl = ntfs_btocl(tocopy + off);
1486 KASSERT(cl == 1 && tocopy <= ntfs_cntob(1),
1487 ("single cluster limit mistake"));
1488 ddprintf(("ntfs_writentvattr_plain: write: " \
1489 "cn: 0x%x cl: %d, off: %d len: %d, left: %d\n",
1490 (u_int32_t) cn, (u_int32_t) cl,
1491 (u_int32_t) off, (u_int32_t) tocopy,
1493 if ((off == 0) && (tocopy == ntfs_cntob(cl)))
1495 bp = getblk(ntmp->ntm_devvp, ntfs_cntobn(cn)
1496 * ntmp->ntm_multiplier,
1497 ntfs_cntob(cl), 0, 0, 0);
1500 error = bread(ntmp->ntm_devvp, ntfs_cntobn(cn)
1501 * ntmp->ntm_multiplier,
1502 ntfs_cntob(cl), NOCRED, &bp);
1509 uiomove(bp->b_data + off, tocopy, uio);
1511 memcpy(bp->b_data + off, data, tocopy);
1513 data = data + tocopy;
1523 printf("ntfs_writentvattr_plain: POSSIBLE RUN ERROR\n");
1531 * This is one of read routines.
1533 * ntnode should be locked.
1536 ntfs_readntvattr_plain(
1537 struct ntfsmount * ntmp,
1539 struct ntvattr * vap,
1550 if (vap->va_flag & NTFS_AF_INRUN) {
1552 cn_t ccn, ccl, cn, left, cl;
1553 caddr_t data = rdata;
1557 ddprintf(("ntfs_readntvattr_plain: data in run: %ld chains\n",
1565 while (left && (cnt < vap->va_vruncnt)) {
1566 ccn = vap->va_vruncn[cnt];
1567 ccl = vap->va_vruncl[cnt];
1569 ddprintf(("ntfs_readntvattr_plain: " \
1570 "left %d, cn: 0x%x, cl: %d, off: %d\n", \
1571 (u_int32_t) left, (u_int32_t) ccn, \
1572 (u_int32_t) ccl, (u_int32_t) off));
1574 if (ntfs_cntob(ccl) < off) {
1575 off -= ntfs_cntob(ccl);
1579 if (ccn || ip->i_number == NTFS_BOOTINO) {
1580 ccl -= ntfs_btocn(off);
1581 cn = ccn + ntfs_btocn(off);
1582 off = ntfs_btocnoff(off);
1584 while (left && ccl) {
1586 * Always read single clusters at a
1587 * time - we need to avoid reading
1588 * differently-sized blocks at the
1589 * same disk offsets to avoid
1590 * confusing the buffer cache.
1593 ntfs_cntob(1) - off);
1594 cl = ntfs_btocl(tocopy + off);
1596 tocopy <= ntfs_cntob(1),
1597 ("single cluster limit mistake"));
1599 ddprintf(("ntfs_readntvattr_plain: " \
1600 "read: cn: 0x%x cl: %d, " \
1601 "off: %d len: %d, left: %d\n",
1607 error = bread(ntmp->ntm_devvp,
1609 * ntmp->ntm_multiplier,
1617 uiomove(bp->b_data + off,
1620 memcpy(data, bp->b_data + off,
1624 data = data + tocopy;
1632 tocopy = MIN(left, ntfs_cntob(ccl) - off);
1633 ddprintf(("ntfs_readntvattr_plain: "
1634 "hole: ccn: 0x%x ccl: %d, off: %d, " \
1635 " len: %d, left: %d\n",
1636 (u_int32_t) ccn, (u_int32_t) ccl,
1637 (u_int32_t) off, (u_int32_t) tocopy,
1642 size_t remains = tocopy;
1643 for(; remains; remains--)
1644 uiomove("", 1, uio);
1646 bzero(data, tocopy);
1647 data = data + tocopy;
1652 printf("ntfs_readntvattr_plain: POSSIBLE RUN ERROR\n");
1656 ddprintf(("ntfs_readnvattr_plain: data is in mft record\n"));
1658 uiomove(vap->va_datap + roff, rsize, uio);
1660 memcpy(rdata, vap->va_datap + roff, rsize);
1668 * This is one of read routines.
1671 ntfs_readattr_plain(
1672 struct ntfsmount * ntmp,
1684 off_t off = roff, left = rsize, toread;
1685 caddr_t data = rdata;
1686 struct ntvattr *vap;
1690 error = ntfs_ntvattrget(ntmp, ip, attrnum, attrname,
1691 ntfs_btocn(off), &vap);
1694 toread = MIN(left, ntfs_cntob(vap->va_vcnend + 1) - off);
1695 ddprintf(("ntfs_readattr_plain: o: %d, s: %d (%d - %d)\n",
1696 (u_int32_t) off, (u_int32_t) toread,
1697 (u_int32_t) vap->va_vcnstart,
1698 (u_int32_t) vap->va_vcnend));
1699 error = ntfs_readntvattr_plain(ntmp, ip, vap,
1700 off - ntfs_cntob(vap->va_vcnstart),
1701 toread, data, &init, uio);
1703 printf("ntfs_readattr_plain: " \
1704 "ntfs_readntvattr_plain failed: o: %d, s: %d\n",
1705 (u_int32_t) off, (u_int32_t) toread);
1706 printf("ntfs_readattr_plain: attrib: %d - %d\n",
1707 (u_int32_t) vap->va_vcnstart,
1708 (u_int32_t) vap->va_vcnend);
1709 ntfs_ntvattrrele(vap);
1712 ntfs_ntvattrrele(vap);
1715 data = data + toread;
1723 * This is one of read routines.
1727 struct ntfsmount * ntmp,
1737 struct ntvattr *vap;
1740 ddprintf(("ntfs_readattr: reading %d: 0x%x, from %d size %d bytes\n",
1741 ip->i_number, attrnum, (u_int32_t) roff, (u_int32_t) rsize));
1743 error = ntfs_ntvattrget(ntmp, ip, attrnum, attrname, 0, &vap);
1747 if ((roff > vap->va_datalen) ||
1748 (roff + rsize > vap->va_datalen)) {
1749 ddprintf(("ntfs_readattr: offset too big\n"));
1750 ntfs_ntvattrrele(vap);
1753 if (vap->va_compression && vap->va_compressalg) {
1756 off_t off = roff, left = rsize, tocopy;
1757 caddr_t data = rdata;
1760 ddprintf(("ntfs_ntreadattr: compression: %d\n",
1761 vap->va_compressalg));
1763 cup = malloc(ntfs_cntob(NTFS_COMPUNIT_CL),
1764 M_NTFSDECOMP, M_WAITOK);
1765 uup = malloc(ntfs_cntob(NTFS_COMPUNIT_CL),
1766 M_NTFSDECOMP, M_WAITOK);
1768 cn = (ntfs_btocn(roff)) & (~(NTFS_COMPUNIT_CL - 1));
1769 off = roff - ntfs_cntob(cn);
1772 error = ntfs_readattr_plain(ntmp, ip, attrnum,
1773 attrname, ntfs_cntob(cn),
1774 ntfs_cntob(NTFS_COMPUNIT_CL),
1779 tocopy = MIN(left, ntfs_cntob(NTFS_COMPUNIT_CL) - off);
1781 if (init == ntfs_cntob(NTFS_COMPUNIT_CL)) {
1783 uiomove(cup + off, tocopy, uio);
1785 memcpy(data, cup + off, tocopy);
1786 } else if (init == 0) {
1788 size_t remains = tocopy;
1789 for(; remains; remains--)
1790 uiomove("", 1, uio);
1793 bzero(data, tocopy);
1795 error = ntfs_uncompunit(ntmp, uup, cup);
1799 uiomove(uup + off, tocopy, uio);
1801 memcpy(data, uup + off, tocopy);
1805 data = data + tocopy;
1806 off += tocopy - ntfs_cntob(NTFS_COMPUNIT_CL);
1807 cn += NTFS_COMPUNIT_CL;
1810 free(uup, M_NTFSDECOMP);
1811 free(cup, M_NTFSDECOMP);
1813 error = ntfs_readattr_plain(ntmp, ip, attrnum, attrname,
1814 roff, rsize, rdata, &init, uio);
1815 ntfs_ntvattrrele(vap);
1832 printf("ntfs_parsetun: run == NULL\n");
1837 printf("ntfs_parserun: trying to go out of run\n");
1841 if ((sz & 0xF) > 8 || (*off) + (sz & 0xF) > len) {
1842 printf("ntfs_parserun: " \
1843 "bad run: length too big: sz: 0x%02x (%ld < %ld + sz)\n",
1847 for (i = 0; i < (sz & 0xF); i++)
1848 *cl += (u_int32_t) run[(*off)++] << (i << 3);
1851 if ((sz & 0xF) > 8 || (*off) + (sz & 0xF) > len) {
1852 printf("ntfs_parserun: " \
1853 "bad run: length too big: sz: 0x%02x (%ld < %ld + sz)\n",
1857 for (i = 0; i < (sz & 0xF); i++)
1858 *cn += (u_int32_t) run[(*off)++] << (i << 3);
1865 * Process fixup routine on given buffer.
1869 struct ntfsmount * ntmp,
1874 struct fixuphdr *fhp = (struct fixuphdr *) buf;
1880 if (fhp->fh_magic != magic) {
1881 printf("ntfs_procfixups: magic doesn't match: %08x != %08x\n",
1882 fhp->fh_magic, magic);
1885 if ((fhp->fh_fnum - 1) * NTFS_BLOCK_SIZE != len) {
1886 printf("ntfs_procfixups: " \
1887 "bad fixups number: %d for %ld bytes block\n",
1888 fhp->fh_fnum, (long)len); /* XXX printf kludge */
1891 if (fhp->fh_foff >= ntmp->ntm_spc * ntmp->ntm_mftrecsz * ntmp->ntm_bps) {
1892 printf("ntfs_procfixups: invalid offset: %x", fhp->fh_foff);
1895 fxp = (u_int16_t *) (buf + fhp->fh_foff);
1896 cfxp = (u_int16_t *) (buf + NTFS_BLOCK_SIZE - 2);
1898 for (i = 1; i < fhp->fh_fnum; i++, fxp++) {
1899 if (*cfxp != fixup) {
1900 printf("ntfs_procfixups: fixup %d doesn't match\n", i);
1904 cfxp = (u_int16_t *) ((caddr_t) cfxp + NTFS_BLOCK_SIZE);
1913 struct ntfsmount * ntmp,
1925 printf("ntfs_runtocn: run: %p, %ld bytes, vcn:%ld\n",
1926 run, len, (u_long) vcn);
1927 printf("ntfs_runtocn: run: ");
1928 for (i = 0; i < len; i++)
1929 printf("0x%02x ", run[i]);
1934 printf("ntfs_runtocn: run == NULL\n");
1938 if (run[off] == 0) {
1939 printf("ntfs_runtocn: vcn too big\n");
1943 error = ntfs_parserun(&ccn, &ccl, run, len, &off);
1945 printf("ntfs_runtocn: ntfs_parserun failed\n");
1948 } while (ccl <= vcn);
1955 * this initializes toupper table & dependant variables to be ready for
1961 ntfs_toupper_tab = (wchar *) NULL;
1962 lockinit(&ntfs_toupper_lock, PVFS, "ntfs_toupper", 0, 0);
1963 ntfs_toupper_usecount = 0;
1967 ntfs_toupper_destroy(void)
1970 lockdestroy(&ntfs_toupper_lock);
1974 * if the ntfs_toupper_tab[] is filled already, just raise use count;
1975 * otherwise read the data from the filesystem we are currently mounting
1978 ntfs_toupper_use(mp, ntmp)
1980 struct ntfsmount *ntmp;
1985 /* get exclusive access */
1986 lockmgr(&ntfs_toupper_lock, LK_EXCLUSIVE, NULL);
1988 /* only read the translation data from a file if it hasn't been
1990 if (ntfs_toupper_tab)
1994 * Read in Unicode lowercase -> uppercase translation file.
1995 * XXX for now, just the first 256 entries are used anyway,
1996 * so don't bother reading more
1998 ntfs_toupper_tab = malloc(65536 * sizeof(wchar),
1999 M_NTFSRDATA, M_WAITOK);
2001 if ((error = VFS_VGET(mp, NTFS_UPCASEINO, LK_EXCLUSIVE, &vp)))
2003 error = ntfs_readattr(ntmp, VTONT(vp), NTFS_A_DATA, NULL,
2004 0, 65536*sizeof(wchar), (char *) ntfs_toupper_tab, NULL);
2008 ntfs_toupper_usecount++;
2009 lockmgr(&ntfs_toupper_lock, LK_RELEASE, NULL);
2014 * lower the use count and if it reaches zero, free the memory
2015 * tied by toupper table
2018 ntfs_toupper_unuse()
2020 /* get exclusive access */
2021 lockmgr(&ntfs_toupper_lock, LK_EXCLUSIVE, NULL);
2023 ntfs_toupper_usecount--;
2024 if (ntfs_toupper_usecount == 0) {
2025 free(ntfs_toupper_tab, M_NTFSRDATA);
2026 ntfs_toupper_tab = NULL;
2029 else if (ntfs_toupper_usecount < 0) {
2030 panic("ntfs_toupper_unuse(): use count negative: %d\n",
2031 ntfs_toupper_usecount);
2035 /* release the lock */
2036 lockmgr(&ntfs_toupper_lock, LK_RELEASE, NULL);
2041 struct ntfsmount *ntmp,
2049 if (ntfs_iconv && cs_local) {
2050 ntfs_iconv->open(cs_local, cs_ntfs, &ntmp->ntm_ic_u2l);
2054 u28 = malloc(256 * sizeof(char*), M_TEMP, M_WAITOK | M_ZERO);
2056 for (i=0; i<256; i++) {
2057 h = (u2w[i] >> 8) & 0xFF;
2060 if (u28[h] == NULL) {
2061 u28[h] = malloc(256 * sizeof(char), M_TEMP, M_WAITOK);
2062 for (j=0; j<256; j++)
2066 u28[h][l] = i & 0xFF;
2069 ntmp->ntm_u28 = u28;
2075 ntfs_u28_uninit(struct ntfsmount *ntmp)
2080 if (ntmp->ntm_u28 == NULL) {
2081 if (ntfs_iconv && ntmp->ntm_ic_u2l) {
2082 ntfs_iconv->close(ntmp->ntm_ic_u2l);
2087 u28 = ntmp->ntm_u28;
2089 for (i=0; i<256; i++)
2091 free(u28[i], M_TEMP);
2100 struct ntfsmount *ntmp,
2107 if (ntfs_iconv && cs_local) {
2108 ntfs_iconv->open(cs_ntfs, cs_local, &ntmp->ntm_ic_l2u);
2112 _82u = malloc(256 * sizeof(wchar), M_TEMP, M_WAITOK);
2114 for (i=0; i<256; i++)
2117 ntmp->ntm_82u = _82u;
2123 ntfs_82u_uninit(struct ntfsmount *ntmp)
2126 if (ntmp->ntm_82u == NULL) {
2127 if (ntfs_iconv && ntmp->ntm_ic_l2u) {
2128 ntfs_iconv->close(ntmp->ntm_ic_l2u);
2133 free(ntmp->ntm_82u, M_TEMP);
2138 * maps the Unicode char to 8bit equivalent
2139 * XXX currently only gets lower 8bit from the Unicode char
2140 * and substitutes a '_' for it if the result would be '\0';
2141 * something better has to be definitely though out
2145 struct ntfsmount *ntmp,
2148 char *p, *outp, inbuf[3], outbuf[3];
2151 if (ntfs_iconv && ntmp->ntm_ic_u2l) {
2154 inbuf[0] = (char)(wc>>8);
2155 inbuf[1] = (char)wc;
2159 ntfs_iconv->convchr(ntmp->ntm_ic_u2l, (const char **)&p, &ilen,
2162 return ((wchar)(outbuf[0]&0xFF));
2163 } else if (olen == 0) {
2164 return ((wchar)((outbuf[0]<<8) | (outbuf[1]&0xFF)));
2169 p = ntmp->ntm_u28[(wc>>8)&0xFF];
2172 return (p[wc&0xFF]&0xFF);
2177 struct ntfsmount *ntmp,
2181 char *p, *outp, inbuf[3], outbuf[3];
2185 if (ntfs_iconv && ntmp->ntm_ic_l2u) {
2186 ilen = (size_t)*len;
2189 inbuf[0] = (char)(wc>>8);
2190 inbuf[1] = (char)wc;
2194 ntfs_iconv->convchr(ntmp->ntm_ic_l2u, (const char **)&p, &ilen,
2197 uc = (wchar)((outbuf[0]<<8) | (outbuf[1]&0xFF));
2202 if (ntmp->ntm_82u != NULL)
2203 return (ntmp->ntm_82u[wc&0xFF]);