2 * $Id: filedir.c,v 1.27 2002-05-13 04:59:36 jmarcus Exp $
4 * Copyright (c) 1990,1993 Regents of The University of Michigan.
5 * All Rights Reserved. See COPYRIGHT.
10 #endif /* HAVE_CONFIG_H */
13 #include <atalk/logger.h>
14 #include <sys/types.h>
16 #include <sys/param.h>
17 #include <netatalk/endian.h>
18 #include <atalk/adouble.h>
19 #include <atalk/afp.h>
20 #include <atalk/util.h>
22 #include <atalk/cnid.h>
28 #endif /* HAVE_FCNTL_H */
34 #else /* STDC_HEADERS */
38 #endif /* HAVE_STRCHR */
39 char *strchr (), *strrchr ();
41 #define memcpy(d,s,n) bcopy ((s), (d), (n))
42 #define memmove(d,s,n) bcopy ((s), (d), (n))
43 #endif /* ! HAVE_MEMCPY */
44 #endif /* STDC_HEADERS */
48 #endif /* HAVE_UNISTD_H */
50 #include "directory.h"
58 int matchfile2dirperms(upath, vol, did)
59 /* Since it's kinda' big; I decided against an
64 /* The below code changes the way file ownership is determined in the name of
65 fixing dropboxes. It has known security problem. See the netatalk FAQ for
74 LOG(log_info, logtype_afpd, "begin matchfile2dirperms:");
77 if (stat(upath, &st ) < 0)
78 LOG(log_error, logtype_afpd, "Could not stat %s: %s", upath, strerror(errno));
79 strcpy (adpath, "./.AppleDouble/");
80 strcat (adpath, upath);
81 if (( dir = dirsearch( vol, did )) == NULL ) {
82 LOG(log_error, logtype_afpd, "matchfile2dirperms: Unable to get directory info.");
83 return( AFPERR_NOOBJ );
85 else if (stat(".", &sb) < 0) {
86 LOG(log_error, logtype_afpd,
87 "matchfile2dirperms: Error checking directory \"%s\": %s",
88 dir->d_name, strerror(errno));
89 return(AFPERR_NOOBJ );
93 if ( uid != sb.st_uid )
96 if (lchown(upath, sb.st_uid, sb.st_gid) < 0)
98 LOG(log_error, logtype_afpd,
99 "matchfile2dirperms: Error changing owner/gid of %s: %s",
100 upath, strerror(errno));
101 return (AFPERR_ACCESS);
103 if (chmod(upath,(st.st_mode&~default_options.umask)| S_IRGRP| S_IROTH) < 0)
105 LOG(log_error, logtype_afpd,
106 "matchfile2dirperms: Error adding file read permissions: %s",
108 return (AFPERR_ACCESS);
112 LOG(log_info, logtype_afpd,
113 "matchfile2dirperms: Added S_IRGRP and S_IROTH: %s",
116 if (lchown(adpath, sb.st_uid, sb.st_gid) < 0)
118 LOG(log_error, logtype_afpd,
119 "matchfile2dirperms: Error changing AppleDouble owner/gid %s: %s",
120 adpath, strerror(errno));
121 return (AFPERR_ACCESS);
123 if (chmod(adpath, (st.st_mode&~default_options.umask)| S_IRGRP| S_IROTH) < 0)
125 LOG(log_error, logtype_afpd,
126 "matchfile2dirperms: Error adding AD file read permissions: %s",
128 return (AFPERR_ACCESS);
132 LOG(log_info, logtype_afpd,
133 "matchfile2dirperms: Added S_IRGRP and S_IROTH to AD: %s",
139 LOG(log_info, logtype_afpd,
140 "matchfile2dirperms: No ownership change necessary.");
142 } /* end else if stat success */
143 seteuid(uid); /* Restore process ownership to normal */
145 LOG(log_info, logtype_afpd, "end matchfile2dirperms:");
153 int afp_getfildirparams(obj, ibuf, ibuflen, rbuf, rbuflen )
156 int ibuflen, *rbuflen;
164 u_int16_t fbitmap, dbitmap, vid;
167 LOG(log_info, logtype_afpd, "begin afp_getfildirparams:");
173 memcpy( &vid, ibuf, sizeof( vid ));
174 ibuf += sizeof( vid );
175 if (( vol = getvolbyvid( vid )) == NULL ) {
176 return( AFPERR_PARAM );
179 memcpy( &did, ibuf, sizeof( did ));
180 ibuf += sizeof( did );
182 if (( dir = dirlookup( vol, did )) == NULL ) {
183 return( AFPERR_NOOBJ );
186 memcpy( &fbitmap, ibuf, sizeof( fbitmap ));
187 fbitmap = ntohs( fbitmap );
188 ibuf += sizeof( fbitmap );
189 memcpy( &dbitmap, ibuf, sizeof( dbitmap ));
190 dbitmap = ntohs( dbitmap );
191 ibuf += sizeof( dbitmap );
193 if (( path = cname( vol, dir, &ibuf )) == NULL) {
194 return( AFPERR_NOOBJ );
197 if ( stat( mtoupath(vol, path ), &st ) < 0 ) {
198 return( AFPERR_NOOBJ );
202 if (S_ISDIR(st.st_mode)) {
204 ret = getdirparams(vol, dbitmap, ".", curdir,
205 &st, rbuf + 3 * sizeof( u_int16_t ), &buflen );
209 /* this is a directory */
210 *(rbuf + 2 * sizeof( u_int16_t )) = (char) FILDIRBIT_ISDIR;
212 if (fbitmap && ( ret = getfilparams(vol, fbitmap, path, curdir, &st,
213 rbuf + 3 * sizeof( u_int16_t ), &buflen )) != AFP_OK ) {
217 *(rbuf + 2 * sizeof( u_int16_t )) = FILDIRBIT_ISFILE;
219 *rbuflen = buflen + 3 * sizeof( u_int16_t );
220 fbitmap = htons( fbitmap );
221 memcpy( rbuf, &fbitmap, sizeof( fbitmap ));
222 rbuf += sizeof( fbitmap );
223 dbitmap = htons( dbitmap );
224 memcpy( rbuf, &dbitmap, sizeof( dbitmap ));
225 rbuf += sizeof( dbitmap ) + sizeof( u_char );
229 LOG(log_info, logtype_afpd, "end afp_getfildirparams:");
235 int afp_setfildirparams(obj, ibuf, ibuflen, rbuf, rbuflen )
238 int ibuflen, *rbuflen;
244 u_int16_t vid, bitmap;
248 LOG(log_info, logtype_afpd, "begin afp_setfildirparams:");
253 memcpy( &vid, ibuf, sizeof(vid));
254 ibuf += sizeof( vid );
256 if (( vol = getvolbyvid( vid )) == NULL ) {
257 return( AFPERR_PARAM );
260 if (vol->v_flags & AFPVOL_RO)
263 memcpy( &did, ibuf, sizeof( did));
264 ibuf += sizeof( did);
266 if (( dir = dirsearch( vol, did )) == NULL ) {
267 return( AFPERR_NOOBJ );
270 memcpy( &bitmap, ibuf, sizeof( bitmap ));
271 bitmap = ntohs( bitmap );
272 ibuf += sizeof( bitmap );
274 if (( path = cname( vol, dir, &ibuf )) == NULL ) {
275 return( AFPERR_NOOBJ );
278 if ( stat( mtoupath(vol, path ), &st ) < 0 ) {
279 return( AFPERR_NOOBJ );
283 * If ibuf is odd, make it even.
285 if ((u_long)ibuf & 1 ) {
289 if (S_ISDIR(st.st_mode)) {
290 rc = setdirparams(vol, path, bitmap, ibuf );
292 rc = setfilparams(vol, path, bitmap, ibuf );
294 if ( rc == AFP_OK ) {
295 setvoltime(obj, vol );
299 LOG(log_info, logtype_afpd, "end afp_setfildirparams:");
305 /* --------------------------------------------
306 Factorise some check on a pathname
308 int check_name(const struct vol *vol, char *name)
310 /* check for illegal characters in the unix filename */
311 if (!wincheck(vol, name))
314 if ((vol->v_flags & AFPVOL_NOHEX) && strchr(name, '/'))
317 if (!validupath(vol, name))
320 /* check for vetoed filenames */
321 if (veto_file(vol->v_veto, name))
326 /* -------------------------
327 move and rename sdir:oldname to curdir:newname in volume vol
329 special care is needed for lock
331 static int moveandrename(vol, sdir, oldname, newname, isdir)
332 const struct vol *vol;
345 struct ofork *opened;
351 memset(&ad, 0, sizeof(ad));
357 p = mtoupath(vol, oldname);
358 id = cnid_get(vol->v_db, sdir->d_did, p, strlen(p));
360 p = ctoupath( vol, sdir, oldname );
361 if ((opened = of_findname(vol, sdir, oldname))) {
362 /* reuse struct adouble so it won't break locks */
368 id = sdir->d_did; /* we already have the CNID */
370 p = ctoupath( vol, sdir->d_parent, oldname );
371 adflags = ADFLAGS_DIR;
374 * p now points to the full pathname of the source fs object.
376 * we are in the dest folder so we need to use p for ad_open
379 if (!ad_open(p, ADFLAGS_HF |adflags, O_RDONLY, 0666, adp)) {
382 ad_getattr(adp, &bshort);
383 ad_close( adp, ADFLAGS_HF );
384 if ((bshort & htons(ATTRBIT_NORENAME)))
385 return(AFPERR_OLOCK);
388 upath = mtoupath(vol, newname);
389 if (0 != (rc = check_name(vol, upath))) {
393 /* source == destination. we just silently accept this. */
394 if (curdir == sdir) {
395 if (strcmp(oldname, newname) == 0)
398 /* deal with case insensitive, case-preserving filesystems. */
399 if ((stat(upath, &st) == 0) && strdiacasecmp(oldname, newname))
402 } else if (stat(upath, &st ) == 0)
406 if (of_findname(vol, curdir, newname)) {
407 rc = AFPERR_EXIST; /* was AFPERR_BUSY; */
408 } else if ((rc = renamefile( p, upath, newname,
409 vol_noadouble(vol), adp )) == AFP_OK) {
410 /* if it's still open, rename the ofork as well. */
411 rc = of_rename(vol, sdir, oldname, curdir, newname);
414 rc = renamedir(p, upath, sdir, curdir, newname, vol_noadouble(vol));
416 if ( rc == AFP_OK ) {
418 /* renaming may have moved the file/dir across a filesystem */
419 if (stat(upath, &st) < 0)
422 /* fix up the catalog entry */
423 cnid_update(vol->v_db, id, &st, curdir->d_did, upath, strlen(upath));
430 /* -------------------------------------------- */
431 int afp_rename(obj, ibuf, ibuflen, rbuf, rbuflen )
434 int ibuflen, *rbuflen;
438 char *path, *oldname, *newname;
445 LOG(log_info, logtype_afpd, "begin afp_rename:");
451 memcpy( &vid, ibuf, sizeof( vid ));
452 ibuf += sizeof( vid );
453 if (( vol = getvolbyvid( vid )) == NULL ) {
454 return( AFPERR_PARAM );
457 if (vol->v_flags & AFPVOL_RO)
460 memcpy( &did, ibuf, sizeof( did ));
461 ibuf += sizeof( did );
462 if (( sdir = dirsearch( vol, did )) == NULL ) {
463 return( AFPERR_NOOBJ );
466 /* source pathname */
467 if (( path = cname( vol, sdir, &ibuf )) == NULL ) {
468 return( AFPERR_NOOBJ );
472 newname = obj->newtmp;
473 oldname = obj->oldtmp;
474 if ( *path != '\0' ) {
475 strcpy(oldname, path); /* an extra copy for of_rename */
478 if ( sdir->d_parent == NULL ) { /* root directory */
479 return( AFPERR_NORENAME );
481 /* move to destination dir */
482 if ( movecwd( vol, sdir->d_parent ) < 0 ) {
483 return( AFPERR_NOOBJ );
486 strcpy(oldname, sdir->d_name);
489 /* another place where we know about the path type */
490 if ( *ibuf++ != 2 ) {
491 return( AFPERR_PARAM );
494 if (( plen = (unsigned char)*ibuf++ ) != 0 ) {
495 strncpy( newname, ibuf, plen );
496 newname[ plen ] = '\0';
499 return AFP_OK; /* newname == oldname same dir */
502 rc = moveandrename(vol, sdir, oldname, newname, isdir);
504 if ( rc == AFP_OK ) {
505 setvoltime(obj, vol );
509 LOG(log_info, logtype_afpd, "end afp_rename:");
515 /* ------------------------------- */
516 int afp_delete(obj, ibuf, ibuflen, rbuf, rbuflen )
519 int ibuflen, *rbuflen;
528 LOG(log_info, logtype_afpd, "begin afp_delete:");
534 memcpy( &vid, ibuf, sizeof( vid ));
535 ibuf += sizeof( vid );
536 if (( vol = getvolbyvid( vid )) == NULL ) {
537 return( AFPERR_PARAM );
540 if (vol->v_flags & AFPVOL_RO)
543 memcpy( &did, ibuf, sizeof( did ));
544 ibuf += sizeof( int );
545 if (( dir = dirsearch( vol, did )) == NULL ) {
546 return( AFPERR_NOOBJ );
549 if (( path = cname( vol, dir, &ibuf )) == NULL ) {
550 return( AFPERR_NOOBJ );
553 if ( *path == '\0' ) {
554 rc = deletecurdir( vol, obj->oldtmp, AFPOBJ_TMPSIZ);
555 } else if (of_findname(vol, curdir, path)) {
557 } else if ((rc = deletefile( upath = mtoupath(vol, path ), 1)) == AFP_OK) {
558 #ifdef CNID_DB /* get rid of entry */
559 cnid_t id = cnid_get(vol->v_db, curdir->d_did, upath, strlen(upath));
560 cnid_delete(vol->v_db, id);
563 if ( rc == AFP_OK ) {
564 setvoltime(obj, vol );
568 LOG(log_info, logtype_afpd, "end afp_delete:");
574 char *ctoupath( vol, dir, name )
575 const struct vol *vol;
580 static char path[ MAXPATHLEN + 1];
584 p = path + sizeof( path ) - 1;
586 u = mtoupath(vol, name );
589 strncpy( p, u, len );
590 for ( d = dir; d->d_parent; d = d->d_parent ) {
592 u = mtoupath(vol, d->d_name );
595 strncpy( p, u, len );
598 len = strlen( vol->v_path );
600 strncpy( p, vol->v_path, len );
605 /* ------------------------- */
606 int afp_moveandrename(obj, ibuf, ibuflen, rbuf, rbuflen )
609 int ibuflen, *rbuflen;
612 struct dir *sdir, *ddir;
614 char *oldname, *newname;
622 #endif /* DROPKLUDGE */
625 LOG(log_info, logtype_afpd, "begin afp_moveandrename:");
631 memcpy( &vid, ibuf, sizeof( vid ));
632 ibuf += sizeof( vid );
633 if (( vol = getvolbyvid( vid )) == NULL ) {
634 return( AFPERR_PARAM );
637 if (vol->v_flags & AFPVOL_RO)
640 /* source did followed by dest did */
641 memcpy( &did, ibuf, sizeof( did ));
642 ibuf += sizeof( int );
643 if (( sdir = dirsearch( vol, did )) == NULL ) {
644 return( AFPERR_PARAM );
647 memcpy( &did, ibuf, sizeof( did ));
648 ibuf += sizeof( int );
650 /* source pathname */
651 if (( path = cname( vol, sdir, &ibuf )) == NULL ) {
652 return( AFPERR_NOOBJ );
656 newname = obj->newtmp;
657 oldname = obj->oldtmp;
658 if ( *path != '\0' ) {
659 /* not a directory */
660 strcpy(oldname, path); /* an extra copy for of_rename */
663 strcpy(oldname, sdir->d_name);
666 /* get the destination directory */
667 if (( ddir = dirsearch( vol, did )) == NULL ) {
668 return( AFPERR_PARAM );
670 if (( path = cname( vol, ddir, &ibuf )) == NULL ) {
671 return( AFPERR_NOOBJ );
673 if ( *path != '\0' ) {
674 return( AFPERR_BADTYPE );
677 /* one more place where we know about path type */
678 if ( *ibuf++ != 2 ) {
679 return( AFPERR_PARAM );
682 if (( plen = (unsigned char)*ibuf++ ) != 0 ) {
683 strncpy( newname, ibuf, plen );
684 newname[ plen ] = '\0';
687 strcpy(newname, oldname);
690 rc = moveandrename(vol, sdir, oldname, newname, isdir);
692 if ( rc == AFP_OK ) {
694 if (vol->v_flags & AFPVOL_DROPBOX) {
695 if (retvalue=matchfile2dirperms (newname, vol, did) != AFP_OK) {
699 #endif /* DROPKLUDGE */
700 setvoltime(obj, vol );
704 LOG(log_info, logtype_afpd, "end afp_moveandrename:");
710 int veto_file(const char*veto_str, const char*path)
711 /* given a veto_str like "abc/zxc/" and path "abc", return 1
712 * veto_str should be '/' delimited
713 * if path matches any one of the veto_str elements exactly, then 1 is returned
714 * otherwise, 0 is returned.
717 int i; /* index to veto_str */
718 int j; /* index to path */
720 if ((veto_str == NULL) || (path == NULL))
724 LOG(log_debug, logtype_afpd, "veto_file \"%s\", \"%s\"", veto_str, path);
727 for(i=0, j=0; veto_str[i] != '\0'; i++) {
728 if (veto_str[i] == '/') {
729 if ((j>0) && (path[j] == '\0'))
733 if (veto_str[i] != path[j]) {
734 while ((veto_str[i] != '/')
735 && (veto_str[i] != '\0'))