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;
282 error = bread(ntmp->ntm_devvp,
283 bn, ntfs_bntob(ntmp->ntm_bpmftrec),
286 printf("ntfs_loadntnode: BREAD FAILED\n");
290 memcpy(mfrp, bp->b_data, ntfs_bntob(ntmp->ntm_bpmftrec));
295 vp = ntmp->ntm_sysvn[NTFS_MFTINO];
296 error = ntfs_readattr(ntmp, VTONT(vp), NTFS_A_DATA, NULL,
297 ip->i_number * ntfs_bntob(ntmp->ntm_bpmftrec),
298 ntfs_bntob(ntmp->ntm_bpmftrec), mfrp, NULL);
300 printf("ntfs_loadntnode: ntfs_readattr failed\n");
305 /* Check if magic and fixups are correct */
306 error = ntfs_procfixups(ntmp, NTFS_FILEMAGIC, (caddr_t)mfrp,
307 ntfs_bntob(ntmp->ntm_bpmftrec));
309 printf("ntfs_loadntnode: BAD MFT RECORD %d\n",
310 (u_int32_t) ip->i_number);
314 dprintf(("ntfs_loadntnode: load attrs for ino: %d\n",ip->i_number));
315 off = mfrp->fr_attroff;
316 ap = (struct attr *) ((caddr_t)mfrp + off);
318 LIST_INIT(&ip->i_valist);
320 while (ap->a_hdr.a_type != -1) {
321 error = ntfs_attrtontvattr(ntmp, &nvap, ap);
326 LIST_INSERT_HEAD(&ip->i_valist, nvap, va_list);
328 off += ap->a_hdr.reclen;
329 ap = (struct attr *) ((caddr_t)mfrp + off);
332 printf("ntfs_loadntnode: failed to load attr ino: %d\n",
337 ip->i_mainrec = mfrp->fr_mainrec;
338 ip->i_nlink = mfrp->fr_nlink;
339 ip->i_frflag = mfrp->fr_flags;
341 ip->i_flag |= IN_LOADED;
349 * Routine locks ntnode and increase usecount, just opposite of
356 dprintf(("ntfs_ntget: get ntnode %d: %p, usecount: %d\n",
357 ip->i_number, ip, ip->i_usecount));
359 mtx_lock(&ip->i_interlock);
361 lockmgr(&ip->i_lock, LK_EXCLUSIVE | LK_INTERLOCK, &ip->i_interlock);
367 * Routine search ntnode in hash, if found: lock, inc usecount and return.
368 * If not in hash allocate structure for ntnode, prefill it, lock,
369 * inc count and return.
371 * ntnode returned locked
375 struct ntfsmount * ntmp,
377 struct ntnode ** ipp)
381 dprintf(("ntfs_ntlookup: looking for ntnode %d\n", ino));
384 ip = ntfs_nthashlookup(ntmp->ntm_devvp->v_rdev, ino);
387 dprintf(("ntfs_ntlookup: ntnode %d: %p, usecount: %d\n",
388 ino, ip, ip->i_usecount));
392 } while (lockmgr(&ntfs_hashlock, LK_EXCLUSIVE | LK_SLEEPFAIL, NULL));
394 ip = malloc(sizeof(struct ntnode), M_NTFSNTNODE,
396 ddprintf(("ntfs_ntlookup: allocating ntnode: %d: %p\n", ino, ip));
398 /* Generic initialization */
399 ip->i_devvp = ntmp->ntm_devvp;
400 ip->i_dev = ntmp->ntm_devvp->v_rdev;
404 LIST_INIT(&ip->i_fnlist);
407 /* init lock and lock the newborn ntnode */
408 lockinit(&ip->i_lock, PINOD, "ntnode", 0, 0);
409 mtx_init(&ip->i_interlock, "ntnode interlock", NULL, MTX_DEF);
414 lockmgr(&ntfs_hashlock, LK_RELEASE, NULL);
418 dprintf(("ntfs_ntlookup: ntnode %d: %p, usecount: %d\n",
419 ino, ip, ip->i_usecount));
425 * Decrement usecount of ntnode and unlock it, if usecount reach zero,
428 * ntnode should be locked on entry, and unlocked on return.
436 dprintf(("ntfs_ntput: rele ntnode %d: %p, usecount: %d\n",
437 ip->i_number, ip, ip->i_usecount));
439 mtx_lock(&ip->i_interlock);
443 if (ip->i_usecount < 0) {
444 panic("ntfs_ntput: ino: %d usecount: %d \n",
445 ip->i_number,ip->i_usecount);
449 if (ip->i_usecount > 0) {
450 lockmgr(&ip->i_lock, LK_RELEASE|LK_INTERLOCK, &ip->i_interlock);
454 dprintf(("ntfs_ntput: deallocating ntnode: %d\n", ip->i_number));
456 if (LIST_FIRST(&ip->i_fnlist))
457 panic("ntfs_ntput: ntnode has fnodes\n");
461 while ((vap = LIST_FIRST(&ip->i_valist)) != NULL) {
462 LIST_REMOVE(vap,va_list);
463 ntfs_freentvattr(vap);
465 lockmgr(&ip->i_lock, LK_RELEASE | LK_INTERLOCK, &ip->i_interlock);
466 mtx_destroy(&ip->i_interlock);
467 lockdestroy(&ip->i_lock);
469 free(ip, M_NTFSNTNODE);
473 * increment usecount of ntnode
479 mtx_lock(&ip->i_interlock);
481 mtx_unlock(&ip->i_interlock);
483 dprintf(("ntfs_ntref: ino %d, usecount: %d\n",
484 ip->i_number, ip->i_usecount));
489 * Decrement usecount of ntnode.
495 dprintf(("ntfs_ntrele: rele ntnode %d: %p, usecount: %d\n",
496 ip->i_number, ip, ip->i_usecount));
498 mtx_lock(&ip->i_interlock);
501 if (ip->i_usecount < 0)
502 panic("ntfs_ntrele: ino: %d usecount: %d \n",
503 ip->i_number,ip->i_usecount);
504 mtx_unlock(&ip->i_interlock);
508 * Deallocate all memory allocated for ntvattr
511 ntfs_freentvattr(vap)
512 struct ntvattr * vap;
514 if (vap->va_flag & NTFS_AF_INRUN) {
516 free(vap->va_vruncn, M_NTFSRUN);
518 free(vap->va_vruncl, M_NTFSRUN);
521 free(vap->va_datap, M_NTFSRDATA);
523 free(vap, M_NTFSNTVATTR);
527 * Convert disk image of attribute into ntvattr structure,
528 * runs are expanded also.
532 struct ntfsmount * ntmp,
533 struct ntvattr ** rvapp,
542 vap = malloc(sizeof(struct ntvattr),
543 M_NTFSNTVATTR, M_WAITOK | M_ZERO);
545 vap->va_flag = rap->a_hdr.a_flag;
546 vap->va_type = rap->a_hdr.a_type;
547 vap->va_compression = rap->a_hdr.a_compression;
548 vap->va_index = rap->a_hdr.a_index;
550 ddprintf(("type: 0x%x, index: %d", vap->va_type, vap->va_index));
552 vap->va_namelen = rap->a_hdr.a_namelen;
553 if (rap->a_hdr.a_namelen) {
554 wchar *unp = (wchar *) ((caddr_t) rap + rap->a_hdr.a_nameoff);
555 ddprintf((", name:["));
556 for (i = 0; i < vap->va_namelen; i++) {
557 vap->va_name[i] = unp[i];
558 ddprintf(("%c", vap->va_name[i]));
562 if (vap->va_flag & NTFS_AF_INRUN) {
563 ddprintf((", nonres."));
564 vap->va_datalen = rap->a_nr.a_datalen;
565 vap->va_allocated = rap->a_nr.a_allocated;
566 vap->va_vcnstart = rap->a_nr.a_vcnstart;
567 vap->va_vcnend = rap->a_nr.a_vcnend;
568 vap->va_compressalg = rap->a_nr.a_compressalg;
569 error = ntfs_runtovrun(&(vap->va_vruncn), &(vap->va_vruncl),
571 (caddr_t) rap + rap->a_nr.a_dataoff);
573 vap->va_compressalg = 0;
574 ddprintf((", res."));
575 vap->va_datalen = rap->a_r.a_datalen;
576 vap->va_allocated = rap->a_r.a_datalen;
577 vap->va_vcnstart = 0;
578 vap->va_vcnend = ntfs_btocn(vap->va_allocated);
579 vap->va_datap = malloc(vap->va_datalen,
580 M_NTFSRDATA, M_WAITOK);
581 memcpy(vap->va_datap, (caddr_t) rap + rap->a_r.a_dataoff,
584 ddprintf((", len: %d", vap->va_datalen));
587 free(vap, M_NTFSNTVATTR);
597 * Expand run into more utilizable and more memory eating format.
618 off += (run[off] & 0xF) + ((run[off] >> 4) & 0xF) + 1;
621 cn = malloc(cnt * sizeof(cn_t), M_NTFSRUN, M_WAITOK);
622 cl = malloc(cnt * sizeof(cn_t), M_NTFSRUN, M_WAITOK);
632 for (i = 0; i < (sz & 0xF); i++)
633 cl[cnt] += (u_int32_t) run[off++] << (i << 3);
636 if (run[off + sz - 1] & 0x80) {
637 tmp = ((u_int64_t) - 1) << (sz << 3);
638 for (i = 0; i < sz; i++)
639 tmp |= (u_int64_t) run[off++] << (i << 3);
642 for (i = 0; i < sz; i++)
643 tmp |= (u_int64_t) run[off++] << (i << 3);
646 prev = cn[cnt] = prev + tmp;
659 * Compare unicode and ascii string case insens.
662 ntfs_uastricmp(ntmp, ustr, ustrlen, astr, astrlen)
663 struct ntfsmount *ntmp;
670 size_t i, j, mbstrlen = astrlen;
674 if (ntmp->ntm_ic_l2u) {
675 for (i = 0, j = 0; i < ustrlen && j < astrlen; i++, j++) {
676 if (j < astrlen -1) {
677 wc = (wchar)astr[j]<<8 | (astr[j+1]&0xFF);
680 wc = (wchar)astr[j]<<8 & 0xFF00;
683 res = ((int) NTFS_TOUPPER(ustr[i])) -
684 ((int)NTFS_TOUPPER(NTFS_82U(wc, &len)));
693 * We use NTFS_82U(NTFS_U28(c)) to get rid of unicode
694 * symbols not covered by translation table
696 for (i = 0; i < ustrlen && i < astrlen; i++) {
697 res = ((int) NTFS_TOUPPER(NTFS_82U(NTFS_U28(ustr[i]), &len))) -
698 ((int)NTFS_TOUPPER(NTFS_82U((wchar)astr[i], &len)));
703 return (ustrlen - mbstrlen);
707 * Compare unicode and ascii string case sens.
710 ntfs_uastrcmp(ntmp, ustr, ustrlen, astr, astrlen)
711 struct ntfsmount *ntmp;
718 size_t i, j, mbstrlen = astrlen;
722 for (i = 0, j = 0; (i < ustrlen) && (j < astrlen); i++, j++) {
724 wc = NTFS_U28(ustr[i]);
727 if (u != '\0' && j < astrlen -1) {
728 res = (int) (u - astr[j++]);
731 res = (res<<8) + (int) (l - astr[j]);
735 return (ustrlen - mbstrlen);
739 * Search fnode in ntnode, if not found allocate and preinitialize.
741 * ntnode should be locked on entry.
745 struct ntfsmount *ntmp,
753 dprintf(("ntfs_fget: ino: %d, attrtype: 0x%x, attrname: %s\n",
754 ip->i_number,attrtype, attrname?attrname:""));
756 LIST_FOREACH(fp, &ip->i_fnlist, f_fnlist){
757 dprintf(("ntfs_fget: fnode: attrtype: %d, attrname: %s\n",
758 fp->f_attrtype, fp->f_attrname?fp->f_attrname:""));
760 if ((attrtype == fp->f_attrtype) &&
761 ((!attrname && !fp->f_attrname) ||
762 (attrname && fp->f_attrname &&
763 !strcmp(attrname,fp->f_attrname)))){
764 dprintf(("ntfs_fget: found existed: %p\n",fp));
772 fp = malloc(sizeof(struct fnode), M_NTFSFNODE,
774 dprintf(("ntfs_fget: allocating fnode: %p\n",fp));
778 fp->f_flag |= FN_AATTRNAME;
779 fp->f_attrname = malloc(strlen(attrname)+1, M_TEMP, M_WAITOK);
780 strcpy(fp->f_attrname, attrname);
782 fp->f_attrname = NULL;
783 fp->f_attrtype = attrtype;
787 LIST_INSERT_HEAD(&ip->i_fnlist, fp, f_fnlist);
795 * Deallocate fnode, remove it from ntnode's fnode list.
797 * ntnode should be locked.
803 struct ntnode *ip = FTONT(fp);
805 dprintf(("ntfs_frele: fnode: %p for %d: %p\n", fp, ip->i_number, ip));
807 dprintf(("ntfs_frele: deallocating fnode\n"));
808 LIST_REMOVE(fp,f_fnlist);
809 if (fp->f_flag & FN_AATTRNAME)
810 free(fp->f_attrname, M_TEMP);
812 free(fp->f_dirblbuf, M_NTFSDIR);
813 free(fp, M_NTFSFNODE);
818 * Lookup attribute name in format: [[:$ATTR_TYPE]:$ATTR_NAME],
819 * $ATTR_TYPE is searched in attrdefs read from $AttrDefs.
820 * If $ATTR_TYPE nott specifed, ATTR_A_DATA assumed.
824 struct ntfsmount * ntmp,
832 struct ntvattrdef *adp;
837 if (name[0] == '$') {
839 for (syslen = 0; syslen < namelen; syslen++) {
840 if(sys[syslen] == ':') {
850 for (i = 0; i < ntmp->ntm_adnum; i++, adp++){
851 if (syslen != adp->ad_namelen ||
852 strncmp(sys, adp->ad_name, syslen) != 0)
855 *attrtype = adp->ad_type;
860 *attrtype = NTFS_A_DATA;
864 (*attrname) = malloc(namelen, M_TEMP, M_WAITOK);
865 memcpy((*attrname), name, namelen);
866 (*attrname)[namelen] = '\0';
873 * Lookup specifed node for filename, matching cnp,
874 * return fnode filled.
878 struct ntfsmount * ntmp,
880 struct componentname * cnp,
883 struct fnode *fp = VTOF(vp);
884 struct ntnode *ip = FTONT(fp);
885 struct ntvattr *vap; /* Root attribute */
886 cn_t cn; /* VCN in current attribute */
887 caddr_t rdbuf; /* Buffer to read directory's blocks */
889 u_int64_t rdsize; /* Length of data to read from current block */
890 struct attr_indexentry *iep;
891 int error, res, anamelen, fnamelen;
892 const char *fname,*aname;
894 int attrtype = NTFS_A_DATA;
895 char *attrname = NULL;
900 error = ntfs_ntget(ip);
904 error = ntfs_ntvattrget(ntmp, ip, NTFS_A_INDXROOT, "$I30", 0, &vap);
905 if (error || (vap->va_flag & NTFS_AF_INRUN))
908 blsize = vap->va_a_iroot->ir_size;
909 rdsize = vap->va_datalen;
912 * Divide file name into: foofilefoofilefoofile[:attrspec]
913 * Store like this: fname:fnamelen [aname:anamelen]
915 fname = cnp->cn_nameptr;
918 for (fnamelen = 0; fnamelen < cnp->cn_namelen; fnamelen++)
919 if(fname[fnamelen] == ':') {
920 aname = fname + fnamelen + 1;
921 anamelen = cnp->cn_namelen - fnamelen - 1;
922 dprintf(("ntfs_ntlookupfile: %s (%d), attr: %s (%d)\n",
923 fname, fnamelen, aname, anamelen));
927 dprintf(("ntfs_ntlookupfile: blksz: %d, rdsz: %jd\n", blsize, rdsize));
929 rdbuf = malloc(blsize, M_TEMP, M_WAITOK);
931 error = ntfs_readattr(ntmp, ip, NTFS_A_INDXROOT, "$I30",
932 0, rdsize, rdbuf, NULL);
936 aoff = sizeof(struct attr_indexroot);
939 iep = (struct attr_indexentry *) (rdbuf + aoff);
941 for (; !(iep->ie_flag & NTFS_IEFLAG_LAST) && (rdsize > aoff);
943 iep = (struct attr_indexentry *) (rdbuf + aoff))
945 ddprintf(("scan: %d, %d\n",
946 (u_int32_t) iep->ie_number,
947 (u_int32_t) iep->ie_fnametype));
949 /* check the name - the case-insensitible check
950 * has to come first, to break from this for loop
951 * if needed, so we can dive correctly */
952 res = NTFS_UASTRICMP(iep->ie_fname, iep->ie_fnamelen,
955 if (res < 0) continue;
957 if (iep->ie_fnametype == 0 ||
958 !(ntmp->ntm_flag & NTFS_MFLAG_CASEINS))
960 res = NTFS_UASTRCMP(iep->ie_fname,
961 iep->ie_fnamelen, fname, fnamelen);
962 if (res != 0) continue;
966 error = ntfs_ntlookupattr(ntmp,
968 &attrtype, &attrname);
973 /* Check if we've found ourself */
974 if ((iep->ie_number == ip->i_number) &&
975 (attrtype == fp->f_attrtype) &&
976 ((!attrname && !fp->f_attrname) ||
977 (attrname && fp->f_attrname &&
978 !strcmp(attrname, fp->f_attrname))))
986 /* vget node, but don't load it */
987 error = ntfs_vgetex(ntmp->ntm_mountp,
988 iep->ie_number, attrtype, attrname,
989 LK_EXCLUSIVE, VG_DONTLOADIN | VG_DONTVALIDFN,
992 /* free the buffer returned by ntfs_ntlookupattr() */
994 free(attrname, M_TEMP);
1003 if (nfp->f_flag & FN_VALID) {
1008 nfp->f_fflag = iep->ie_fflag;
1009 nfp->f_pnumber = iep->ie_fpnumber;
1010 nfp->f_times = iep->ie_ftimes;
1012 if((nfp->f_fflag & NTFS_FFLAG_DIR) &&
1013 (nfp->f_attrtype == NTFS_A_DATA) &&
1014 (nfp->f_attrname == NULL))
1019 nvp->v_type = f_type;
1021 if ((nfp->f_attrtype == NTFS_A_DATA) &&
1022 (nfp->f_attrname == NULL))
1024 /* Opening default attribute */
1025 nfp->f_size = iep->ie_fsize;
1026 nfp->f_allocated = iep->ie_fallocated;
1027 nfp->f_flag |= FN_PRELOADED;
1029 error = ntfs_filesize(ntmp, nfp,
1030 &nfp->f_size, &nfp->f_allocated);
1037 nfp->f_flag &= ~FN_VALID;
1042 /* Dive if possible */
1043 if (iep->ie_flag & NTFS_IEFLAG_SUBNODE) {
1044 dprintf(("ntfs_ntlookupfile: diving\n"));
1046 cn = *(cn_t *) (rdbuf + aoff +
1047 iep->reclen - sizeof(cn_t));
1050 error = ntfs_readattr(ntmp, ip, NTFS_A_INDX, "$I30",
1051 ntfs_cntob(cn), rdsize, rdbuf, NULL);
1055 error = ntfs_procfixups(ntmp, NTFS_INDXMAGIC,
1060 aoff = (((struct attr_indexalloc *) rdbuf)->ia_hdrsize +
1063 dprintf(("ntfs_ntlookupfile: nowhere to dive :-(\n"));
1069 dprintf(("finish\n"));
1072 if (attrname) free(attrname, M_TEMP);
1073 ntfs_ntvattrrele(vap);
1075 free(rdbuf, M_TEMP);
1080 * Check if name type is permitted to show.
1083 ntfs_isnamepermitted(
1084 struct ntfsmount * ntmp,
1085 struct attr_indexentry * iep)
1087 if (ntmp->ntm_flag & NTFS_MFLAG_ALLNAMES)
1090 switch (iep->ie_fnametype) {
1092 ddprintf(("ntfs_isnamepermitted: skipped DOS name\n"));
1094 case 0: case 1: case 3:
1097 printf("ntfs_isnamepermitted: " \
1098 "WARNING! Unknown file name type: %d\n",
1106 * Read ntfs dir like stream of attr_indexentry, not like btree of them.
1107 * This is done by scaning $BITMAP:$I30 for busy clusters and reading them.
1108 * Ofcouse $INDEX_ROOT:$I30 is read before. Last read values are stored in
1109 * fnode, so we can skip toward record number num almost immediatly.
1110 * Anyway this is rather slow routine. The problem is that we don't know
1111 * how many records are there in $INDEX_ALLOCATION:$I30 block.
1115 struct ntfsmount * ntmp,
1118 struct attr_indexentry ** riepp)
1120 struct ntnode *ip = FTONT(fp);
1121 struct ntvattr *vap = NULL; /* IndexRoot attribute */
1122 struct ntvattr *bmvap = NULL; /* BitMap attribute */
1123 struct ntvattr *iavap = NULL; /* IndexAllocation attribute */
1124 caddr_t rdbuf; /* Buffer to read directory's blocks */
1125 u_int8_t *bmp = NULL; /* Bitmap */
1126 u_int32_t blsize; /* Index allocation size (2048) */
1127 u_int32_t rdsize; /* Length of data to read */
1128 u_int32_t attrnum; /* Current attribute type */
1129 u_int32_t cpbl = 1; /* Clusters per directory block */
1131 struct attr_indexentry *iep;
1133 u_int32_t aoff, cnum;
1135 dprintf(("ntfs_ntreaddir: read ino: %d, num: %d\n", ip->i_number, num));
1136 error = ntfs_ntget(ip);
1140 error = ntfs_ntvattrget(ntmp, ip, NTFS_A_INDXROOT, "$I30", 0, &vap);
1144 if (fp->f_dirblbuf == NULL) {
1145 fp->f_dirblsz = vap->va_a_iroot->ir_size;
1146 fp->f_dirblbuf = malloc(max(vap->va_datalen,fp->f_dirblsz),
1147 M_NTFSDIR, M_WAITOK);
1150 blsize = fp->f_dirblsz;
1151 rdbuf = fp->f_dirblbuf;
1153 dprintf(("ntfs_ntreaddir: rdbuf: %p, blsize: %d\n", rdbuf, blsize));
1155 if (vap->va_a_iroot->ir_flag & NTFS_IRFLAG_INDXALLOC) {
1156 error = ntfs_ntvattrget(ntmp, ip, NTFS_A_INDXBITMAP, "$I30",
1162 bmp = malloc(bmvap->va_datalen, M_TEMP, M_WAITOK);
1163 error = ntfs_readattr(ntmp, ip, NTFS_A_INDXBITMAP, "$I30", 0,
1164 bmvap->va_datalen, bmp, NULL);
1168 error = ntfs_ntvattrget(ntmp, ip, NTFS_A_INDX, "$I30",
1174 cpbl = ntfs_btocn(blsize + ntfs_cntob(1) - 1);
1175 dprintf(("ntfs_ntreaddir: indexalloc: %jd, cpbl: %d\n",
1176 iavap->va_datalen, cpbl));
1178 dprintf(("ntfs_ntreadidir: w/o BitMap and IndexAllocation\n"));
1179 iavap = bmvap = NULL;
1183 /* Try use previous values */
1184 if ((fp->f_lastdnum < num) && (fp->f_lastdnum != 0)) {
1185 attrnum = fp->f_lastdattr;
1186 aoff = fp->f_lastdoff;
1187 blnum = fp->f_lastdblnum;
1188 cnum = fp->f_lastdnum;
1190 attrnum = NTFS_A_INDXROOT;
1191 aoff = sizeof(struct attr_indexroot);
1197 dprintf(("ntfs_ntreaddir: scan: 0x%x, %d, %d, %d, %d\n",
1198 attrnum, (u_int32_t) blnum, cnum, num, aoff));
1199 rdsize = (attrnum == NTFS_A_INDXROOT) ? vap->va_datalen : blsize;
1200 error = ntfs_readattr(ntmp, ip, attrnum, "$I30",
1201 ntfs_cntob(blnum * cpbl), rdsize, rdbuf, NULL);
1205 if (attrnum == NTFS_A_INDX) {
1206 error = ntfs_procfixups(ntmp, NTFS_INDXMAGIC,
1212 aoff = (attrnum == NTFS_A_INDX) ?
1213 (0x18 + ((struct attr_indexalloc *) rdbuf)->ia_hdrsize) :
1214 sizeof(struct attr_indexroot);
1216 iep = (struct attr_indexentry *) (rdbuf + aoff);
1217 for (; !(iep->ie_flag & NTFS_IEFLAG_LAST) && (rdsize > aoff);
1218 aoff += iep->reclen,
1219 iep = (struct attr_indexentry *) (rdbuf + aoff))
1221 if (!ntfs_isnamepermitted(ntmp, iep)) continue;
1224 fp->f_lastdnum = cnum;
1225 fp->f_lastdoff = aoff;
1226 fp->f_lastdblnum = blnum;
1227 fp->f_lastdattr = attrnum;
1238 if (attrnum == NTFS_A_INDXROOT)
1243 while (ntfs_cntob(blnum * cpbl) < iavap->va_datalen) {
1244 if (bmp[blnum >> 3] & (1 << (blnum & 7)))
1249 attrnum = NTFS_A_INDX;
1251 if (ntfs_cntob(blnum * cpbl) >= iavap->va_datalen)
1253 dprintf(("ntfs_ntreaddir: blnum: %d\n", (u_int32_t) blnum));
1262 ntfs_ntvattrrele(vap);
1264 ntfs_ntvattrrele(bmvap);
1266 ntfs_ntvattrrele(iavap);
1274 * Convert NTFS times that are in 100 ns units and begins from
1275 * 1601 Jan 1 into unix times.
1283 /* WindowNT times are in 100 ns and from 1601 Jan 1 */
1284 t.tv_nsec = (nt % (1000 * 1000 * 10)) * 100;
1285 t.tv_sec = nt / (1000 * 1000 * 10) -
1286 369LL * 365LL * 24LL * 60LL * 60LL -
1287 89LL * 1LL * 24LL * 60LL * 60LL;
1292 * Get file times from NTFS_A_NAME attribute.
1296 struct ntfsmount * ntmp,
1300 struct ntvattr *vap;
1303 dprintf(("ntfs_times: ino: %d...\n", ip->i_number));
1305 error = ntfs_ntget(ip);
1309 error = ntfs_ntvattrget(ntmp, ip, NTFS_A_NAME, NULL, 0, &vap);
1314 *tm = vap->va_a_name->n_times;
1315 ntfs_ntvattrrele(vap);
1322 * Get file sizes from corresponding attribute.
1324 * ntnode under fnode should be locked.
1328 struct ntfsmount * ntmp,
1333 struct ntvattr *vap;
1334 struct ntnode *ip = FTONT(fp);
1338 dprintf(("ntfs_filesize: ino: %d\n", ip->i_number));
1340 error = ntfs_ntvattrget(ntmp, ip,
1341 fp->f_attrtype, fp->f_attrname, 0, &vap);
1345 bn = vap->va_allocated;
1346 sz = vap->va_datalen;
1348 dprintf(("ntfs_filesize: %d bytes (%d bytes allocated)\n",
1349 (u_int32_t) sz, (u_int32_t) bn));
1356 ntfs_ntvattrrele(vap);
1362 * This is one of write routine.
1365 ntfs_writeattr_plain(
1366 struct ntfsmount * ntmp,
1378 off_t off = roff, left = rsize, towrite;
1379 caddr_t data = rdata;
1380 struct ntvattr *vap;
1384 error = ntfs_ntvattrget(ntmp, ip, attrnum, attrname,
1385 ntfs_btocn(off), &vap);
1388 towrite = MIN(left, ntfs_cntob(vap->va_vcnend + 1) - off);
1389 ddprintf(("ntfs_writeattr_plain: o: %d, s: %d (%d - %d)\n",
1390 (u_int32_t) off, (u_int32_t) towrite,
1391 (u_int32_t) vap->va_vcnstart,
1392 (u_int32_t) vap->va_vcnend));
1393 error = ntfs_writentvattr_plain(ntmp, ip, vap,
1394 off - ntfs_cntob(vap->va_vcnstart),
1395 towrite, data, &init, uio);
1397 printf("ntfs_writeattr_plain: " \
1398 "ntfs_writentvattr_plain failed: o: %d, s: %d\n",
1399 (u_int32_t) off, (u_int32_t) towrite);
1400 printf("ntfs_writeattr_plain: attrib: %d - %d\n",
1401 (u_int32_t) vap->va_vcnstart,
1402 (u_int32_t) vap->va_vcnend);
1403 ntfs_ntvattrrele(vap);
1406 ntfs_ntvattrrele(vap);
1409 data = data + towrite;
1417 * This is one of write routine.
1419 * ntnode should be locked.
1422 ntfs_writentvattr_plain(
1423 struct ntfsmount * ntmp,
1425 struct ntvattr * vap,
1435 cn_t ccn, ccl, cn, left, cl;
1436 caddr_t data = rdata;
1442 if ((vap->va_flag & NTFS_AF_INRUN) == 0) {
1443 printf("ntfs_writevattr_plain: CAN'T WRITE RES. ATTRIBUTE\n");
1447 ddprintf(("ntfs_writentvattr_plain: data in run: %ld chains\n",
1455 for (; left && (cnt < vap->va_vruncnt); cnt++) {
1456 ccn = vap->va_vruncn[cnt];
1457 ccl = vap->va_vruncl[cnt];
1459 ddprintf(("ntfs_writentvattr_plain: " \
1460 "left %d, cn: 0x%x, cl: %d, off: %d\n", \
1461 (u_int32_t) left, (u_int32_t) ccn, \
1462 (u_int32_t) ccl, (u_int32_t) off));
1464 if (ntfs_cntob(ccl) < off) {
1465 off -= ntfs_cntob(ccl);
1469 if (!ccn && ip->i_number != NTFS_BOOTINO)
1472 ccl -= ntfs_btocn(off);
1473 cn = ccn + ntfs_btocn(off);
1474 off = ntfs_btocnoff(off);
1476 while (left && ccl) {
1478 * Always read and write single clusters at a time -
1479 * we need to avoid requesting differently-sized
1480 * blocks at the same disk offsets to avoid
1481 * confusing the buffer cache.
1483 tocopy = MIN(left, ntfs_cntob(1) - off);
1484 cl = ntfs_btocl(tocopy + off);
1485 KASSERT(cl == 1 && tocopy <= ntfs_cntob(1),
1486 ("single cluster limit mistake"));
1487 ddprintf(("ntfs_writentvattr_plain: write: " \
1488 "cn: 0x%x cl: %d, off: %d len: %d, left: %d\n",
1489 (u_int32_t) cn, (u_int32_t) cl,
1490 (u_int32_t) off, (u_int32_t) tocopy,
1492 if ((off == 0) && (tocopy == ntfs_cntob(cl)))
1494 bp = getblk(ntmp->ntm_devvp, ntfs_cntobn(cn),
1495 ntfs_cntob(cl), 0, 0, 0);
1498 error = bread(ntmp->ntm_devvp, ntfs_cntobn(cn),
1499 ntfs_cntob(cl), NOCRED, &bp);
1506 uiomove(bp->b_data + off, tocopy, uio);
1508 memcpy(bp->b_data + off, data, tocopy);
1510 data = data + tocopy;
1520 printf("ntfs_writentvattr_plain: POSSIBLE RUN ERROR\n");
1528 * This is one of read routines.
1530 * ntnode should be locked.
1533 ntfs_readntvattr_plain(
1534 struct ntfsmount * ntmp,
1536 struct ntvattr * vap,
1547 if (vap->va_flag & NTFS_AF_INRUN) {
1549 cn_t ccn, ccl, cn, left, cl;
1550 caddr_t data = rdata;
1554 ddprintf(("ntfs_readntvattr_plain: data in run: %ld chains\n",
1562 while (left && (cnt < vap->va_vruncnt)) {
1563 ccn = vap->va_vruncn[cnt];
1564 ccl = vap->va_vruncl[cnt];
1566 ddprintf(("ntfs_readntvattr_plain: " \
1567 "left %d, cn: 0x%x, cl: %d, off: %d\n", \
1568 (u_int32_t) left, (u_int32_t) ccn, \
1569 (u_int32_t) ccl, (u_int32_t) off));
1571 if (ntfs_cntob(ccl) < off) {
1572 off -= ntfs_cntob(ccl);
1576 if (ccn || ip->i_number == NTFS_BOOTINO) {
1577 ccl -= ntfs_btocn(off);
1578 cn = ccn + ntfs_btocn(off);
1579 off = ntfs_btocnoff(off);
1581 while (left && ccl) {
1583 * Always read single clusters at a
1584 * time - we need to avoid reading
1585 * differently-sized blocks at the
1586 * same disk offsets to avoid
1587 * confusing the buffer cache.
1590 ntfs_cntob(1) - off);
1591 cl = ntfs_btocl(tocopy + off);
1593 tocopy <= ntfs_cntob(1),
1594 ("single cluster limit mistake"));
1596 ddprintf(("ntfs_readntvattr_plain: " \
1597 "read: cn: 0x%x cl: %d, " \
1598 "off: %d len: %d, left: %d\n",
1604 error = bread(ntmp->ntm_devvp,
1613 uiomove(bp->b_data + off,
1616 memcpy(data, bp->b_data + off,
1620 data = data + tocopy;
1628 tocopy = MIN(left, ntfs_cntob(ccl) - off);
1629 ddprintf(("ntfs_readntvattr_plain: "
1630 "hole: ccn: 0x%x ccl: %d, off: %d, " \
1631 " len: %d, left: %d\n",
1632 (u_int32_t) ccn, (u_int32_t) ccl,
1633 (u_int32_t) off, (u_int32_t) tocopy,
1638 size_t remains = tocopy;
1639 for(; remains; remains--)
1640 uiomove("", 1, uio);
1642 bzero(data, tocopy);
1643 data = data + tocopy;
1648 printf("ntfs_readntvattr_plain: POSSIBLE RUN ERROR\n");
1652 ddprintf(("ntfs_readnvattr_plain: data is in mft record\n"));
1654 uiomove(vap->va_datap + roff, rsize, uio);
1656 memcpy(rdata, vap->va_datap + roff, rsize);
1664 * This is one of read routines.
1667 ntfs_readattr_plain(
1668 struct ntfsmount * ntmp,
1680 off_t off = roff, left = rsize, toread;
1681 caddr_t data = rdata;
1682 struct ntvattr *vap;
1686 error = ntfs_ntvattrget(ntmp, ip, attrnum, attrname,
1687 ntfs_btocn(off), &vap);
1690 toread = MIN(left, ntfs_cntob(vap->va_vcnend + 1) - off);
1691 ddprintf(("ntfs_readattr_plain: o: %d, s: %d (%d - %d)\n",
1692 (u_int32_t) off, (u_int32_t) toread,
1693 (u_int32_t) vap->va_vcnstart,
1694 (u_int32_t) vap->va_vcnend));
1695 error = ntfs_readntvattr_plain(ntmp, ip, vap,
1696 off - ntfs_cntob(vap->va_vcnstart),
1697 toread, data, &init, uio);
1699 printf("ntfs_readattr_plain: " \
1700 "ntfs_readntvattr_plain failed: o: %d, s: %d\n",
1701 (u_int32_t) off, (u_int32_t) toread);
1702 printf("ntfs_readattr_plain: attrib: %d - %d\n",
1703 (u_int32_t) vap->va_vcnstart,
1704 (u_int32_t) vap->va_vcnend);
1705 ntfs_ntvattrrele(vap);
1708 ntfs_ntvattrrele(vap);
1711 data = data + toread;
1719 * This is one of read routines.
1723 struct ntfsmount * ntmp,
1733 struct ntvattr *vap;
1736 ddprintf(("ntfs_readattr: reading %d: 0x%x, from %d size %d bytes\n",
1737 ip->i_number, attrnum, (u_int32_t) roff, (u_int32_t) rsize));
1739 error = ntfs_ntvattrget(ntmp, ip, attrnum, attrname, 0, &vap);
1743 if ((roff > vap->va_datalen) ||
1744 (roff + rsize > vap->va_datalen)) {
1745 ddprintf(("ntfs_readattr: offset too big\n"));
1746 ntfs_ntvattrrele(vap);
1749 if (vap->va_compression && vap->va_compressalg) {
1752 off_t off = roff, left = rsize, tocopy;
1753 caddr_t data = rdata;
1756 ddprintf(("ntfs_ntreadattr: compression: %d\n",
1757 vap->va_compressalg));
1759 cup = malloc(ntfs_cntob(NTFS_COMPUNIT_CL),
1760 M_NTFSDECOMP, M_WAITOK);
1761 uup = malloc(ntfs_cntob(NTFS_COMPUNIT_CL),
1762 M_NTFSDECOMP, M_WAITOK);
1764 cn = (ntfs_btocn(roff)) & (~(NTFS_COMPUNIT_CL - 1));
1765 off = roff - ntfs_cntob(cn);
1768 error = ntfs_readattr_plain(ntmp, ip, attrnum,
1769 attrname, ntfs_cntob(cn),
1770 ntfs_cntob(NTFS_COMPUNIT_CL),
1775 tocopy = MIN(left, ntfs_cntob(NTFS_COMPUNIT_CL) - off);
1777 if (init == ntfs_cntob(NTFS_COMPUNIT_CL)) {
1779 uiomove(cup + off, tocopy, uio);
1781 memcpy(data, cup + off, tocopy);
1782 } else if (init == 0) {
1784 size_t remains = tocopy;
1785 for(; remains; remains--)
1786 uiomove("", 1, uio);
1789 bzero(data, tocopy);
1791 error = ntfs_uncompunit(ntmp, uup, cup);
1795 uiomove(uup + off, tocopy, uio);
1797 memcpy(data, uup + off, tocopy);
1801 data = data + tocopy;
1802 off += tocopy - ntfs_cntob(NTFS_COMPUNIT_CL);
1803 cn += NTFS_COMPUNIT_CL;
1806 free(uup, M_NTFSDECOMP);
1807 free(cup, M_NTFSDECOMP);
1809 error = ntfs_readattr_plain(ntmp, ip, attrnum, attrname,
1810 roff, rsize, rdata, &init, uio);
1811 ntfs_ntvattrrele(vap);
1828 printf("ntfs_parsetun: run == NULL\n");
1833 printf("ntfs_parserun: trying to go out of run\n");
1837 if ((sz & 0xF) > 8 || (*off) + (sz & 0xF) > len) {
1838 printf("ntfs_parserun: " \
1839 "bad run: length too big: sz: 0x%02x (%ld < %ld + sz)\n",
1843 for (i = 0; i < (sz & 0xF); i++)
1844 *cl += (u_int32_t) run[(*off)++] << (i << 3);
1847 if ((sz & 0xF) > 8 || (*off) + (sz & 0xF) > len) {
1848 printf("ntfs_parserun: " \
1849 "bad run: length too big: sz: 0x%02x (%ld < %ld + sz)\n",
1853 for (i = 0; i < (sz & 0xF); i++)
1854 *cn += (u_int32_t) run[(*off)++] << (i << 3);
1861 * Process fixup routine on given buffer.
1865 struct ntfsmount * ntmp,
1870 struct fixuphdr *fhp = (struct fixuphdr *) buf;
1876 if (fhp->fh_magic != magic) {
1877 printf("ntfs_procfixups: magic doesn't match: %08x != %08x\n",
1878 fhp->fh_magic, magic);
1881 if ((fhp->fh_fnum - 1) * ntmp->ntm_bps != len) {
1882 printf("ntfs_procfixups: " \
1883 "bad fixups number: %d for %ld bytes block\n",
1884 fhp->fh_fnum, (long)len); /* XXX printf kludge */
1887 if (fhp->fh_foff >= ntmp->ntm_spc * ntmp->ntm_mftrecsz * ntmp->ntm_bps) {
1888 printf("ntfs_procfixups: invalid offset: %x", fhp->fh_foff);
1891 fxp = (u_int16_t *) (buf + fhp->fh_foff);
1892 cfxp = (u_int16_t *) (buf + ntmp->ntm_bps - 2);
1894 for (i = 1; i < fhp->fh_fnum; i++, fxp++) {
1895 if (*cfxp != fixup) {
1896 printf("ntfs_procfixups: fixup %d doesn't match\n", i);
1900 cfxp = (u_int16_t *) ((caddr_t) cfxp + ntmp->ntm_bps);
1909 struct ntfsmount * ntmp,
1921 printf("ntfs_runtocn: run: %p, %ld bytes, vcn:%ld\n",
1922 run, len, (u_long) vcn);
1923 printf("ntfs_runtocn: run: ");
1924 for (i = 0; i < len; i++)
1925 printf("0x%02x ", run[i]);
1930 printf("ntfs_runtocn: run == NULL\n");
1934 if (run[off] == 0) {
1935 printf("ntfs_runtocn: vcn too big\n");
1939 error = ntfs_parserun(&ccn, &ccl, run, len, &off);
1941 printf("ntfs_runtocn: ntfs_parserun failed\n");
1944 } while (ccl <= vcn);
1951 * this initializes toupper table & dependant variables to be ready for
1957 ntfs_toupper_tab = (wchar *) NULL;
1958 lockinit(&ntfs_toupper_lock, PVFS, "ntfs_toupper", 0, 0);
1959 ntfs_toupper_usecount = 0;
1963 ntfs_toupper_destroy(void)
1966 lockdestroy(&ntfs_toupper_lock);
1970 * if the ntfs_toupper_tab[] is filled already, just raise use count;
1971 * otherwise read the data from the filesystem we are currently mounting
1974 ntfs_toupper_use(mp, ntmp)
1976 struct ntfsmount *ntmp;
1981 /* get exclusive access */
1982 lockmgr(&ntfs_toupper_lock, LK_EXCLUSIVE, NULL);
1984 /* only read the translation data from a file if it hasn't been
1986 if (ntfs_toupper_tab)
1990 * Read in Unicode lowercase -> uppercase translation file.
1991 * XXX for now, just the first 256 entries are used anyway,
1992 * so don't bother reading more
1994 ntfs_toupper_tab = malloc(65536 * sizeof(wchar),
1995 M_NTFSRDATA, M_WAITOK);
1997 if ((error = VFS_VGET(mp, NTFS_UPCASEINO, LK_EXCLUSIVE, &vp)))
1999 error = ntfs_readattr(ntmp, VTONT(vp), NTFS_A_DATA, NULL,
2000 0, 65536*sizeof(wchar), (char *) ntfs_toupper_tab, NULL);
2004 ntfs_toupper_usecount++;
2005 lockmgr(&ntfs_toupper_lock, LK_RELEASE, NULL);
2010 * lower the use count and if it reaches zero, free the memory
2011 * tied by toupper table
2014 ntfs_toupper_unuse()
2016 /* get exclusive access */
2017 lockmgr(&ntfs_toupper_lock, LK_EXCLUSIVE, NULL);
2019 ntfs_toupper_usecount--;
2020 if (ntfs_toupper_usecount == 0) {
2021 free(ntfs_toupper_tab, M_NTFSRDATA);
2022 ntfs_toupper_tab = NULL;
2025 else if (ntfs_toupper_usecount < 0) {
2026 panic("ntfs_toupper_unuse(): use count negative: %d\n",
2027 ntfs_toupper_usecount);
2031 /* release the lock */
2032 lockmgr(&ntfs_toupper_lock, LK_RELEASE, NULL);
2037 struct ntfsmount *ntmp,
2045 if (ntfs_iconv && cs_local) {
2046 ntfs_iconv->open(cs_local, cs_ntfs, &ntmp->ntm_ic_u2l);
2050 u28 = malloc(256 * sizeof(char*), M_TEMP, M_WAITOK | M_ZERO);
2052 for (i=0; i<256; i++) {
2053 h = (u2w[i] >> 8) & 0xFF;
2056 if (u28[h] == NULL) {
2057 u28[h] = malloc(256 * sizeof(char), M_TEMP, M_WAITOK);
2058 for (j=0; j<256; j++)
2062 u28[h][l] = i & 0xFF;
2065 ntmp->ntm_u28 = u28;
2071 ntfs_u28_uninit(struct ntfsmount *ntmp)
2076 if (ntmp->ntm_u28 == NULL) {
2077 if (ntfs_iconv && ntmp->ntm_ic_u2l) {
2078 ntfs_iconv->close(ntmp->ntm_ic_u2l);
2083 u28 = ntmp->ntm_u28;
2085 for (i=0; i<256; i++)
2087 free(u28[i], M_TEMP);
2096 struct ntfsmount *ntmp,
2103 if (ntfs_iconv && cs_local) {
2104 ntfs_iconv->open(cs_ntfs, cs_local, &ntmp->ntm_ic_l2u);
2108 _82u = malloc(256 * sizeof(wchar), M_TEMP, M_WAITOK);
2110 for (i=0; i<256; i++)
2113 ntmp->ntm_82u = _82u;
2119 ntfs_82u_uninit(struct ntfsmount *ntmp)
2122 if (ntmp->ntm_82u == NULL) {
2123 if (ntfs_iconv && ntmp->ntm_ic_l2u) {
2124 ntfs_iconv->close(ntmp->ntm_ic_l2u);
2129 free(ntmp->ntm_82u, M_TEMP);
2134 * maps the Unicode char to 8bit equivalent
2135 * XXX currently only gets lower 8bit from the Unicode char
2136 * and substitutes a '_' for it if the result would be '\0';
2137 * something better has to be definitely though out
2141 struct ntfsmount *ntmp,
2144 char *p, *outp, inbuf[3], outbuf[3];
2147 if (ntfs_iconv && ntmp->ntm_ic_u2l) {
2150 inbuf[0] = (char)(wc>>8);
2151 inbuf[1] = (char)wc;
2155 ntfs_iconv->convchr(ntmp->ntm_ic_u2l, (const char **)&p, &ilen,
2158 return ((wchar)(outbuf[0]&0xFF));
2159 } else if (olen == 0) {
2160 return ((wchar)((outbuf[0]<<8) | (outbuf[1]&0xFF)));
2165 p = ntmp->ntm_u28[(wc>>8)&0xFF];
2168 return (p[wc&0xFF]&0xFF);
2173 struct ntfsmount *ntmp,
2177 char *p, *outp, inbuf[3], outbuf[3];
2181 if (ntfs_iconv && ntmp->ntm_ic_l2u) {
2182 ilen = (size_t)*len;
2185 inbuf[0] = (char)(wc>>8);
2186 inbuf[1] = (char)wc;
2190 ntfs_iconv->convchr(ntmp->ntm_ic_l2u, (const char **)&p, &ilen,
2193 uc = (wchar)((outbuf[0]<<8) | (outbuf[1]&0xFF));
2198 if (ntmp->ntm_82u != NULL)
2199 return (ntmp->ntm_82u[wc&0xFF]);