2 * $Id: directory.c,v 1.44 2002-10-12 17:27:18 didg Exp $
4 * Copyright (c) 1990,1993 Regents of The University of Michigan.
5 * All Rights Reserved. See COPYRIGHT.
7 * 19 jan 2000 implemented red-black trees for directory lookups
13 #endif /* HAVE_CONFIG_H */
15 #include <atalk/logger.h>
16 #include <sys/types.h>
20 #include <sys/param.h>
21 #include <netatalk/endian.h>
22 #include <atalk/adouble.h>
23 #include <atalk/afp.h>
24 #include <atalk/util.h>
26 #include <atalk/cnid.h>
34 #endif /* HAVE_FCNTL_H */
41 #else /* STDC_HEADERS */
45 #endif /* HAVE_STRCHR */
46 char *strchr (), *strrchr ();
48 #define memcpy(d,s,n) bcopy ((s), (d), (n))
49 #define memmove(d,s,n) bcopy ((s), (d), (n))
50 #endif /* ! HAVE_MEMCPY */
51 #endif /* STDC_HEADERS */
53 #include "directory.h"
64 #define SENTINEL (&sentinel)
65 static struct dir sentinel = { SENTINEL, SENTINEL, NULL, DIRTREE_COLOR_BLACK,
66 NULL, NULL, NULL, NULL, NULL, 0, 0,
68 static struct dir rootpar = { SENTINEL, SENTINEL, NULL, 0,
69 NULL, NULL, NULL, NULL, NULL, 0, 0,
72 /* (from IM: Toolbox Essentials)
73 * dirFinderInfo (DInfo) fields:
75 * frRect 8 folder's window rectangle
77 * frLocation 4 folder's location in window
78 * frView 2 folder's view (default == closedView (256))
80 * extended dirFinderInfo (DXInfo) fields:
81 * frScroll 4 scroll position
82 * frOpenChain: 4 directory ID chain of open folders
83 * frScript: 1 script flag and code
84 * frXFlags: 1 reserved
85 * frComment: 2 comment ID
86 * frPutAway: 4 home directory ID
90 * redid did assignment for directories. now we use red-black trees.
95 const struct vol *vol;
101 /* check for 0 did */
105 if ( did == DIRDID_ROOT_PARENT ) {
107 rootpar.d_did = DIRDID_ROOT_PARENT;
108 rootpar.d_child = vol->v_dir;
113 while ( dir != SENTINEL ) {
114 if (dir->d_did == did)
115 return dir->d_m_name ? dir : NULL;
116 dir = (dir->d_did > did) ? dir->d_left : dir->d_right;
121 /* -----------------------------------------
122 * if did is not in the cache resolve it with cnid
126 dirlookup( vol, did )
127 const struct vol *vol;
134 static char path[MAXPATHLEN + 1];
138 static char buffer[12 + MAXPATHLEN + 1];
139 int buflen = 12 + MAXPATHLEN + 1;
142 ret = dirsearch(vol, did);
147 if ((upath = cnid_resolve(vol->v_db, &id, buffer, buflen)) == NULL) {
150 ptr = path + MAXPATHLEN;
151 mpath = utompath(vol, upath);
153 pathlen = len; /* no 0 in the last part */
155 strcpy(ptr - len, mpath);
158 ret = dirsearch(vol,id);
162 if ((upath = cnid_resolve(vol->v_db, &id, buffer, buflen)) == NULL)
164 mpath = utompath(vol, upath);
165 len = strlen(mpath) + 1;
169 strcpy(ptr - len, mpath);
174 *ptr = (unsigned char)pathlen;
177 /* cname is not efficient */
178 if (cname( vol, ret, &ptr ) == NULL )
181 return dirsearch(vol, did);
184 /* --------------------------- */
185 /* rotate the tree to the left */
186 static void dir_leftrotate(vol, dir)
190 struct dir *right = dir->d_right;
192 /* whee. move the right's left tree into dir's right tree */
193 dir->d_right = right->d_left;
194 if (right->d_left != SENTINEL)
195 right->d_left->d_back = dir;
197 if (right != SENTINEL) {
198 right->d_back = dir->d_back;
202 if (!dir->d_back) /* no parent. move the right tree to the top. */
204 else if (dir == dir->d_back->d_left) /* we were on the left */
205 dir->d_back->d_left = right;
207 dir->d_back->d_right = right; /* we were on the right */
209 /* re-insert dir on the left tree */
216 /* rotate the tree to the right */
217 static void dir_rightrotate(vol, dir)
221 struct dir *left = dir->d_left;
223 /* whee. move the left's right tree into dir's left tree */
224 dir->d_left = left->d_right;
225 if (left->d_right != SENTINEL)
226 left->d_right->d_back = dir;
228 if (left != SENTINEL) {
229 left->d_back = dir->d_back;
233 if (!dir->d_back) /* no parent. move the left tree to the top. */
235 else if (dir == dir->d_back->d_right) /* we were on the right */
236 dir->d_back->d_right = left;
238 dir->d_back->d_left = left; /* we were on the left */
240 /* re-insert dir on the right tree */
246 /* recolor after a removal */
247 static struct dir *dir_rmrecolor(vol, dir)
253 while ((dir != vol->v_root) && (dir->d_color == DIRTREE_COLOR_BLACK)) {
254 /* are we on the left tree? */
255 if (dir == dir->d_back->d_left) {
256 leaf = dir->d_back->d_right; /* get right side */
257 if (leaf->d_color == DIRTREE_COLOR_RED) {
258 /* we're red. we need to change to black. */
259 leaf->d_color = DIRTREE_COLOR_BLACK;
260 dir->d_back->d_color = DIRTREE_COLOR_RED;
261 dir_leftrotate(vol, dir->d_back);
262 leaf = dir->d_back->d_right;
265 /* right leaf has black end nodes */
266 if ((leaf->d_left->d_color == DIRTREE_COLOR_BLACK) &&
267 (leaf->d_right->d_color = DIRTREE_COLOR_BLACK)) {
268 leaf->d_color = DIRTREE_COLOR_RED; /* recolor leaf as red */
269 dir = dir->d_back; /* ascend */
271 if (leaf->d_right->d_color == DIRTREE_COLOR_BLACK) {
272 leaf->d_left->d_color = DIRTREE_COLOR_BLACK;
273 leaf->d_color = DIRTREE_COLOR_RED;
274 dir_rightrotate(vol, leaf);
275 leaf = dir->d_back->d_right;
277 leaf->d_color = dir->d_back->d_color;
278 dir->d_back->d_color = DIRTREE_COLOR_BLACK;
279 leaf->d_right->d_color = DIRTREE_COLOR_BLACK;
280 dir_leftrotate(vol, dir->d_back);
283 } else { /* right tree */
284 leaf = dir->d_back->d_left; /* left tree */
285 if (leaf->d_color == DIRTREE_COLOR_RED) {
286 leaf->d_color = DIRTREE_COLOR_BLACK;
287 dir->d_back->d_color = DIRTREE_COLOR_RED;
288 dir_rightrotate(vol, dir->d_back);
289 leaf = dir->d_back->d_left;
292 /* left leaf has black end nodes */
293 if ((leaf->d_right->d_color == DIRTREE_COLOR_BLACK) &&
294 (leaf->d_left->d_color = DIRTREE_COLOR_BLACK)) {
295 leaf->d_color = DIRTREE_COLOR_RED; /* recolor leaf as red */
296 dir = dir->d_back; /* ascend */
298 if (leaf->d_left->d_color == DIRTREE_COLOR_BLACK) {
299 leaf->d_right->d_color = DIRTREE_COLOR_BLACK;
300 leaf->d_color = DIRTREE_COLOR_RED;
301 dir_leftrotate(vol, leaf);
302 leaf = dir->d_back->d_left;
304 leaf->d_color = dir->d_back->d_color;
305 dir->d_back->d_color = DIRTREE_COLOR_BLACK;
306 leaf->d_left->d_color = DIRTREE_COLOR_BLACK;
307 dir_rightrotate(vol, dir->d_back);
312 dir->d_color = DIRTREE_COLOR_BLACK;
319 /* remove the node from the tree. this is just like insertion, but
320 * different. actually, it has to worry about a bunch of things that
321 * insertion doesn't care about. */
322 static void dir_remove( vol, dir )
327 struct ofork *of, *last;
328 struct dir *node, *leaf;
329 #endif /* REMOVE_NODES */
331 if (!dir || (dir == SENTINEL))
334 /* i'm not sure if it really helps to delete stuff. */
336 if (dir->d_u_name != dir->d_m_name) {
340 dir->d_m_name = NULL;
341 dir->d_u_name = NULL;
342 #else /* ! REMOVE_NODES */
344 /* go searching for a node with at most one child */
345 if ((dir->d_left == SENTINEL) || (dir->d_right == SENTINEL)) {
349 while (node->d_left != SENTINEL)
354 leaf = (node->d_left != SENTINEL) ? node->d_left : node->d_right;
357 leaf->d_back = node->d_back;
360 } else if (node == node->d_back->d_left) { /* left tree */
361 node->d_back->d_left = leaf;
363 node->d_back->d_right = leaf;
366 /* we want to free node, but we also want to free the data in dir.
367 * currently, that's d_name and the directory traversal bits.
368 * we just copy the necessary bits and then fix up all the
369 * various pointers to the directory. needless to say, there are
370 * a bunch of places that store the directory struct. */
372 struct dir save, *tmp;
374 memcpy(&save, dir, sizeof(save));
375 memcpy(dir, node, sizeof(struct dir));
377 /* restore the red-black bits */
378 dir->d_left = save.d_left;
379 dir->d_right = save.d_right;
380 dir->d_back = save.d_back;
381 dir->d_color = save.d_color;
383 if (node == vol->v_dir) {/* we may need to fix up this pointer */
385 rootpar.d_child = vol->v_dir;
387 /* if we aren't the root directory, we have parents and
388 * siblings to worry about */
389 if (dir->d_parent->d_child == node)
390 dir->d_parent->d_child = dir;
391 dir->d_next->d_prev = dir;
392 dir->d_prev->d_next = dir;
395 /* fix up children. */
399 tmp = (tmp == dir->d_child->d_prev) ? NULL : tmp->d_next;
402 if (node == curdir) /* another pointer to fixup */
405 /* we also need to fix up oforks. bleah */
406 if ((of = dir->d_ofork)) {
407 last = of->of_d_prev;
410 of = (last == of) ? NULL : of->of_d_next;
414 /* set the node's d_name */
415 node->d_m_name = save.d_m_name;
416 node->d_u_name = save.d_u_name;
419 if (node->d_color == DIRTREE_COLOR_BLACK)
420 dir_rmrecolor(vol, leaf);
422 if (node->d_u_name != node->d_m_name) {
423 free(node->d_u_name);
425 free(node->d_m_name);
427 #endif /* ! REMOVE_NODES */
430 /* ---------------------------------------
431 * remove the node and its childs from the tree
433 * FIXME what about opened forks with refs to it?
434 * it's an afp specs violation because you can't delete
435 * an opened forks. Now afpd doesn't care about forks opened by other
436 * process. It's fixable within afpd if fnctl_lock, doable with smb and
437 * next to impossible for nfs and local filesystem access.
440 static void dir_invalidate( vol, dir )
441 const struct vol *vol;
445 /* v_root can't be deleted */
446 if (movecwd(vol, vol->v_root) < 0)
447 printf("Yuup cant change dir to v_root\n");
450 dirchildremove(dir->d_parent, dir);
451 dir_remove( vol, dir );
454 /* ------------------------------------ */
455 static struct dir *dir_insert(vol, dir)
456 const struct vol *vol;
462 while (pdir->d_did != dir->d_did ) {
463 if ( pdir->d_did > dir->d_did ) {
464 if ( pdir->d_left == SENTINEL ) {
471 if ( pdir->d_right == SENTINEL ) {
476 pdir = pdir->d_right;
484 * attempt to extend the current dir. tree to include path
485 * as a side-effect, movecwd to that point and return the new dir
488 extenddir( vol, dir, path )
495 path->u_name = p = mtoupath(vol, path->m_name );
496 if ( of_stat( path ) != 0 ) {
500 if (!S_ISDIR(path->st.st_mode)) {
504 if (( dir = adddir( vol, dir, path)) == NULL ) {
508 if ( movecwd( vol, dir ) < 0 ) {
515 static int deletedir(char *dir)
517 char path[MAXPATHLEN + 1];
524 if ((len = strlen(dir)) > sizeof(path))
528 if ((dp = opendir(dir)) == NULL)
534 while ((de = readdir(dp))) {
535 /* skip this and previous directory */
536 if (!strcmp(de->d_name, ".") || !strcmp(de->d_name, ".."))
539 strncpy(path + len, de->d_name, sizeof(path) - len);
540 if (stat(path, &st) == 0) {
541 if (S_ISDIR(st.st_mode)) {
542 if ((err = deletedir(path)) < 0) {
546 } else if (unlink(path) < 0) {
549 continue; /* somebody went and deleted it behind our backs. */
567 /* okay. the directory is empty. delete it. note: we already got rid
569 if (rmdir(dir) < 0) {
573 case ENOTEMPTY : /* should never happen */
574 return( AFPERR_DIRNEMPT );
577 return( AFPERR_ACCESS );
581 return( AFPERR_PARAM );
587 /* do a recursive copy. */
588 static int copydir(char *src, char *dst, int noadouble)
590 char spath[MAXPATHLEN + 1], dpath[MAXPATHLEN + 1];
598 /* doesn't exist or the path is too long. */
599 if (((slen = strlen(src)) > sizeof(spath) - 2) ||
600 ((dlen = strlen(dst)) > sizeof(dpath) - 2) ||
601 ((dp = opendir(src)) == NULL))
604 /* try to create the destination directory */
605 if (ad_mkdir(dst, DIRBITS | 0777) < 0) {
609 return( AFPERR_NOOBJ );
611 return( AFPERR_VLOCK );
614 return( AFPERR_ACCESS );
616 return( AFPERR_EXIST );
619 return( AFPERR_DFULL );
621 return( AFPERR_PARAM );
625 /* set things up to copy */
633 while ((de = readdir(dp))) {
634 /* skip this and previous directory */
635 if (!strcmp(de->d_name, ".") || !strcmp(de->d_name, ".."))
638 strncpy(spath + slen, de->d_name, sizeof(spath) - slen);
639 if (stat(spath, &st) == 0) {
640 strncpy(dpath + dlen, de->d_name, sizeof(dpath) - dlen);
642 if (S_ISDIR(st.st_mode)) {
643 if ((err = copydir(spath, dpath, noadouble)) < 0)
645 } else if ((err = copyfile(spath, dpath, NULL, noadouble)) < 0) {
649 /* keep the same time stamp. */
650 ut.actime = ut.modtime = st.st_mtime;
656 /* keep the same time stamp. */
657 if (stat(src, &st) == 0) {
658 ut.actime = ut.modtime = st.st_mtime;
668 /* --- public functions follow --- */
670 /* NOTE: we start off with at least one node (the root directory). */
671 struct dir *dirinsert( vol, dir )
677 if ((node = dir_insert(vol, dir)))
680 /* recolor the tree. the current node is red. */
681 dir->d_color = DIRTREE_COLOR_RED;
683 /* parent of this node has to be black. if the parent node
684 * is red, then we have a grandparent. */
685 while ((dir != vol->v_root) &&
686 (dir->d_back->d_color == DIRTREE_COLOR_RED)) {
687 /* are we on the left tree? */
688 if (dir->d_back == dir->d_back->d_back->d_left) {
689 node = dir->d_back->d_back->d_right; /* get the right node */
690 if (node->d_color == DIRTREE_COLOR_RED) {
691 /* we're red. we need to change to black. */
692 dir->d_back->d_color = DIRTREE_COLOR_BLACK;
693 node->d_color = DIRTREE_COLOR_BLACK;
694 dir->d_back->d_back->d_color = DIRTREE_COLOR_RED;
695 dir = dir->d_back->d_back; /* finished. go up. */
697 if (dir == dir->d_back->d_right) {
699 dir_leftrotate(vol, dir);
701 dir->d_back->d_color = DIRTREE_COLOR_BLACK;
702 dir->d_back->d_back->d_color = DIRTREE_COLOR_RED;
703 dir_rightrotate(vol, dir->d_back->d_back);
706 node = dir->d_back->d_back->d_left;
707 if (node->d_color == DIRTREE_COLOR_RED) {
708 /* we're red. we need to change to black. */
709 dir->d_back->d_color = DIRTREE_COLOR_BLACK;
710 node->d_color = DIRTREE_COLOR_BLACK;
711 dir->d_back->d_back->d_color = DIRTREE_COLOR_RED;
712 dir = dir->d_back->d_back; /* finished. ascend */
714 if (dir == dir->d_back->d_left) {
716 dir_rightrotate(vol, dir);
718 dir->d_back->d_color = DIRTREE_COLOR_BLACK;
719 dir->d_back->d_back->d_color = DIRTREE_COLOR_RED;
720 dir_leftrotate(vol, dir->d_back->d_back);
725 vol->v_root->d_color = DIRTREE_COLOR_BLACK;
729 /* free everything down. we don't bother to recolor as this is only
730 * called to free the entire tree */
734 if (!dir || (dir == SENTINEL))
737 if ( dir->d_left != SENTINEL ) {
738 dirfree( dir->d_left );
740 if ( dir->d_right != SENTINEL ) {
741 dirfree( dir->d_right );
744 if (dir != SENTINEL) {
745 if (dir->d_u_name != dir->d_m_name) {
753 /* --------------------------------------------
754 * most of the time mac name and unix name are the same
756 struct dir *dirnew(const char *m_name, const char *u_name)
760 dir = (struct dir *) calloc(1, sizeof( struct dir ));
764 if ((dir->d_m_name = strdup(m_name)) == NULL) {
769 if (m_name == u_name) {
770 dir->d_u_name = dir->d_m_name;
772 else if ((dir->d_u_name = strdup(u_name)) == NULL) {
778 dir->d_left = dir->d_right = SENTINEL;
779 dir->d_next = dir->d_prev = dir;
783 /* -------------------------------------------------- */
784 /* XXX: this needs to be changed to handle path types
799 XXXX u_name can be an alias on m_name if the m_name is
804 cname( vol, dir, cpath )
805 const struct vol *vol;
810 static char path[ MAXPATHLEN + 1];
811 static struct path ret;
823 switch (*data) { /* path type */
826 len = (unsigned char) *data++;
831 if (afp_version >= 30) {
841 /* else it's an error */
846 *cpath += len + size;
854 if ( !extend && movecwd( vol, dir ) < 0 ) {
856 movecwd failed so dir is not there anymore.
857 FIXME Is it true with other errors?
858 if path == '\0' ==> the cpath parameter is that dir,
859 and maybe we are trying to recreate it! So we can't
863 if ( dir->d_did == DIRDID_ROOT_PARENT)
865 cdir = dir->d_parent;
866 dir_invalidate(vol, dir);
867 if (*path != '\0' || u == NULL) {
868 /* FIXME: if path != '\0' then extend != 0 ?
869 * u == NUL ==> cpath is something like:
874 if (movecwd(vol, cdir) < 0) {
875 printf("can't change to parent\n");
876 return NULL; /* give up the whole tree is out of synch*/
878 /* restore the previous token */
879 strncpy(path, u, olen);
882 if (!ret.st_valid || *path == '\0') {
888 if ( *data == '\0' ) {
894 while ( *data && *data == sep && len > 0 ) {
895 if ( dir->d_parent == NULL ) {
903 /* would this be faster with strlen + strncpy? */
909 while ( *data && *data != sep && len > 0 ) {
914 /* short cut bits by chopping off a trailing \0. this also
915 makes the traversal happy w/ filenames at the end of the
922 if ( p != path ) { /* we got something */
926 if ( strcasecmp( cdir->d_m_name, path ) == 0 ) {
929 cdir = (cdir == dir->d_child->d_prev) ? NULL :
932 if ( cdir == NULL ) {
934 /* if dir == curdir it always succeed,
935 even if curdir is deleted.
936 it's not a pb because it will fail in extenddir
938 if ( movecwd( vol, dir ) < 0 ) {
939 /* dir is not valid anymore
940 we delete dir from the cache and abort.
942 dir_invalidate(vol, dir);
945 cdir = extenddir( vol, dir, &ret );
949 cdir = extenddir( vol, dir, &ret );
952 if ( cdir == NULL ) {
966 * Move curdir to dir, with a possible chdir()
968 int movecwd( vol, dir)
969 const struct vol *vol;
972 char path[MAXPATHLEN + 1];
977 if ( dir == curdir ) {
980 if ( dir->d_did == DIRDID_ROOT_PARENT) {
984 p = path + sizeof(path) - 1;
987 for ( d = dir; d->d_parent != NULL && d != curdir; d = d->d_parent ) {
996 n = strlen( vol->v_path );
998 strncpy( p, vol->v_path, n );
1000 if ( chdir( p ) < 0 ) {
1008 * We can't use unix file's perm to support Apple's inherited protection modes.
1009 * If we aren't the file's owner we can't change its perms when moving it and smb
1010 * nfs,... don't even try.
1012 #define AFP_CHECK_ACCESS
1014 int check_access(char *path, int mode)
1016 #ifdef AFP_CHECK_ACCESS
1024 accessmode(p, &ma, curdir, NULL);
1025 if ((mode & OPENACC_WR) && !(ma.ma_user & AR_UWRITE))
1027 if ((mode & OPENACC_RD) && !(ma.ma_user & AR_UREAD))
1033 /* ------------------------------
1035 (name, dir) with curdir:name == dir, from afp_enumerate
1038 int getdirparams(const struct vol *vol,
1039 u_int16_t bitmap, struct path *s_path,
1041 char *buf, int *buflen )
1045 char *data, *nameoff = NULL;
1046 int bit = 0, isad = 0;
1051 struct stat *st = &s_path->st;
1052 char *upath = s_path->u_name;
1054 if ((bitmap & ((1 << DIRPBIT_ATTR) |
1055 (1 << DIRPBIT_CDATE) |
1056 (1 << DIRPBIT_MDATE) |
1057 (1 << DIRPBIT_BDATE) |
1058 (1 << DIRPBIT_FINFO)))) {
1059 memset(&ad, 0, sizeof(ad));
1060 if ( !ad_open( upath, ADFLAGS_HF|ADFLAGS_DIR, O_RDONLY,
1061 DIRBITS | 0777, &ad)) {
1067 while ( bitmap != 0 ) {
1068 while (( bitmap & 1 ) == 0 ) {
1076 ad_getattr(&ad, &ashort);
1077 } else if (*upath == '.' && strcmp(upath, ".") &&
1078 strcmp(upath, "..")) {
1079 ashort = htons(ATTRBIT_INVISIBLE);
1082 ashort |= htons(ATTRBIT_SHARED);
1083 memcpy( data, &ashort, sizeof( ashort ));
1084 data += sizeof( ashort );
1088 if ( dir->d_did == DIRDID_ROOT) {
1089 aint = DIRDID_ROOT_PARENT;
1090 } else if (dir->d_did == DIRDID_ROOT_PARENT) {
1093 aint = dir->d_parent->d_did;
1095 memcpy( data, &aint, sizeof( aint ));
1096 data += sizeof( aint );
1099 case DIRPBIT_CDATE :
1100 if (!isad || (ad_getdate(&ad, AD_DATE_CREATE, &aint) < 0))
1101 aint = AD_DATE_FROM_UNIX(st->st_mtime);
1102 memcpy( data, &aint, sizeof( aint ));
1103 data += sizeof( aint );
1106 case DIRPBIT_MDATE :
1107 aint = AD_DATE_FROM_UNIX(st->st_mtime);
1108 memcpy( data, &aint, sizeof( aint ));
1109 data += sizeof( aint );
1112 case DIRPBIT_BDATE :
1113 if (!isad || (ad_getdate(&ad, AD_DATE_BACKUP, &aint) < 0))
1114 aint = AD_DATE_START;
1115 memcpy( data, &aint, sizeof( aint ));
1116 data += sizeof( aint );
1119 case DIRPBIT_FINFO :
1121 memcpy( data, ad_entry( &ad, ADEID_FINDERI ), 32 );
1122 } else { /* no appledouble */
1123 memset( data, 0, 32 );
1124 /* set default view -- this also gets done in ad_open() */
1125 ashort = htons(FINDERINFO_CLOSEDVIEW);
1126 memcpy(data + FINDERINFO_FRVIEWOFF, &ashort, sizeof(ashort));
1128 /* dot files are by default invisible */
1129 if (*upath == '.' && strcmp(upath, ".") &&
1130 strcmp(upath, "..")) {
1131 ashort = htons(FINDERINFO_INVISIBLE);
1132 memcpy(data + FINDERINFO_FRFLAGOFF,
1133 &ashort, sizeof(ashort));
1139 case DIRPBIT_LNAME :
1140 if (dir->d_m_name) /* root of parent can have a null name */
1143 memset(data, 0, sizeof(u_int16_t));
1144 data += sizeof( u_int16_t );
1147 case DIRPBIT_SNAME :
1148 memset(data, 0, sizeof(u_int16_t));
1149 data += sizeof( u_int16_t );
1153 memcpy( data, &dir->d_did, sizeof( aint ));
1154 data += sizeof( aint );
1157 case DIRPBIT_OFFCNT :
1159 /* this needs to handle current directory access rights */
1160 if (st->st_ctime == dir->ctime) {
1161 ashort = dir->offcnt;
1163 else if ((ret = for_each_dirent(vol, upath, NULL,NULL)) >= 0) {
1165 dir->offcnt = ashort;
1166 dir->ctime = st->st_ctime;
1168 ashort = htons( ashort );
1169 memcpy( data, &ashort, sizeof( ashort ));
1170 data += sizeof( ashort );
1174 aint = htonl(st->st_uid);
1175 memcpy( data, &aint, sizeof( aint ));
1176 data += sizeof( aint );
1180 aint = htonl(st->st_gid);
1181 memcpy( data, &aint, sizeof( aint ));
1182 data += sizeof( aint );
1185 case DIRPBIT_ACCESS :
1186 accessmode( upath, &ma, dir , st);
1188 *data++ = ma.ma_user;
1189 *data++ = ma.ma_world;
1190 *data++ = ma.ma_group;
1191 *data++ = ma.ma_owner;
1194 /* Client has requested the ProDOS information block.
1195 Just pass back the same basic block for all
1196 directories. <shirsch@ibm.net> */
1197 case DIRPBIT_PDINFO :
1198 if (afp_version >= 30) { /* UTF8 name */
1199 utf8 = kTextEncodingUTF8;
1200 if (dir->d_m_name) /* root of parent can have a null name */
1203 memset(data, 0, sizeof(u_int16_t));
1204 data += sizeof( u_int16_t );
1206 else { /* ProDOS Info Block */
1209 ashort = htons( 0x0200 );
1210 memcpy( data, &ashort, sizeof( ashort ));
1211 data += sizeof( ashort );
1212 memset( data, 0, sizeof( ashort ));
1213 data += sizeof( ashort );
1219 ad_close( &ad, ADFLAGS_HF );
1221 return( AFPERR_BITMAP );
1227 ashort = htons( data - buf );
1228 memcpy( nameoff, &ashort, sizeof( ashort ));
1229 data = set_name(data, dir->d_m_name, utf8);
1232 ad_close( &ad, ADFLAGS_HF );
1234 *buflen = data - buf;
1238 /* ----------------------------- */
1239 int afp_setdirparams(obj, ibuf, ibuflen, rbuf, rbuflen )
1242 int ibuflen, *rbuflen;
1247 u_int16_t vid, bitmap;
1253 memcpy( &vid, ibuf, sizeof( vid ));
1254 ibuf += sizeof( vid );
1256 if (( vol = getvolbyvid( vid )) == NULL ) {
1257 return( AFPERR_PARAM );
1260 if (vol->v_flags & AFPVOL_RO)
1261 return AFPERR_VLOCK;
1263 memcpy( &did, ibuf, sizeof( did ));
1264 ibuf += sizeof( int );
1266 if (( dir = dirlookup( vol, did )) == NULL ) {
1267 return( AFPERR_NOOBJ );
1270 memcpy( &bitmap, ibuf, sizeof( bitmap ));
1271 bitmap = ntohs( bitmap );
1272 ibuf += sizeof( bitmap );
1274 if (( path = cname( vol, dir, &ibuf )) == NULL ) {
1275 return( AFPERR_NOOBJ );
1278 if ( *path->m_name != '\0' ) {
1279 return( AFPERR_BADTYPE ); /* not a directory */
1283 * If ibuf is odd, make it even.
1285 if ((u_long)ibuf & 1 ) {
1289 if (( rc = setdirparams(vol, path, bitmap, ibuf )) == AFP_OK ) {
1290 setvoltime(obj, vol );
1296 * cf AFP3.0.pdf page 244 for change_mdate and change_parent_mdate logic
1298 * assume path == '\0' eg. it's a directory in canonical form
1301 struct path Cur_Path = {
1303 ".", /* unix name */
1304 0, /* stat is not set */
1308 int setdirparams(const struct vol *vol,
1309 struct path *path, u_int16_t bitmap, char *buf )
1317 int bit = 0, aint, isad = 1;
1318 u_int16_t ashort, bshort;
1320 int change_mdate = 0;
1321 int change_parent_mdate = 0;
1324 upath = path->u_name;
1325 memset(&ad, 0, sizeof(ad));
1327 if (ad_open( upath, vol_noadouble(vol)|ADFLAGS_HF|ADFLAGS_DIR,
1328 O_RDWR|O_CREAT, 0666, &ad) < 0) {
1330 * Check to see what we're trying to set. If it's anything
1331 * but ACCESS, UID, or GID, give an error. If it's any of those
1332 * three, we don't need the ad to be open, so just continue.
1334 * note: we also don't need to worry about mdate. also, be quiet
1335 * if we're using the noadouble option.
1337 if (!vol_noadouble(vol) && (bitmap &
1338 ~((1<<DIRPBIT_ACCESS)|(1<<DIRPBIT_UID)|(1<<DIRPBIT_GID)|
1339 (1<<DIRPBIT_MDATE)|(1<<DIRPBIT_PDINFO)))) {
1340 return AFPERR_ACCESS;
1346 * Check to see if a create was necessary. If it was, we'll want
1347 * to set our name, etc.
1349 if ( ad_getoflags( &ad, ADFLAGS_HF ) & O_CREAT ) {
1350 ad_setentrylen( &ad, ADEID_NAME, strlen( curdir->d_m_name ));
1351 memcpy( ad_entry( &ad, ADEID_NAME ), curdir->d_m_name,
1352 ad_getentrylen( &ad, ADEID_NAME ));
1356 while ( bitmap != 0 ) {
1357 while (( bitmap & 1 ) == 0 ) {
1366 memcpy( &ashort, buf, sizeof( ashort ));
1367 ad_getattr(&ad, &bshort);
1368 if ( ntohs( ashort ) & ATTRBIT_SETCLR ) {
1369 bshort |= htons( ntohs( ashort ) & ~ATTRBIT_SETCLR );
1373 ad_setattr(&ad, bshort);
1374 if ((ashort & htons(ATTRBIT_INVISIBLE)))
1375 change_parent_mdate = 1;
1377 buf += sizeof( ashort );
1380 case DIRPBIT_CDATE :
1383 memcpy(&aint, buf, sizeof(aint));
1384 ad_setdate(&ad, AD_DATE_CREATE, aint);
1386 buf += sizeof( aint );
1389 case DIRPBIT_MDATE :
1390 memcpy(&newdate, buf, sizeof(newdate));
1391 buf += sizeof( newdate );
1394 case DIRPBIT_BDATE :
1397 memcpy(&aint, buf, sizeof(aint));
1398 ad_setdate(&ad, AD_DATE_BACKUP, aint);
1400 buf += sizeof( aint );
1403 case DIRPBIT_FINFO :
1406 * Alright, we admit it, this is *really* sick!
1407 * The 4 bytes that we don't copy, when we're dealing
1408 * with the root of a volume, are the directory's
1409 * location information. This eliminates that annoying
1410 * behavior one sees when mounting above another mount
1414 if ( curdir->d_did == DIRDID_ROOT ) {
1415 memcpy( ad_entry( &ad, ADEID_FINDERI ), buf, 10 );
1416 memcpy( ad_entry( &ad, ADEID_FINDERI ) + 14, buf + 14, 18 );
1418 memcpy( ad_entry( &ad, ADEID_FINDERI ), buf, 32 );
1424 case DIRPBIT_UID : /* What kind of loser mounts as root? */
1425 change_parent_mdate = 1;
1426 memcpy( &aint, buf, sizeof(aint));
1427 buf += sizeof( aint );
1428 if ( (curdir->d_did == DIRDID_ROOT) &&
1429 (setdeskowner( ntohl(aint), -1 ) < 0)) {
1433 err = AFPERR_ACCESS;
1434 goto setdirparam_done;
1438 goto setdirparam_done;
1441 LOG(log_error, logtype_afpd, "setdirparam: setdeskowner: %s",
1445 goto setdirparam_done;
1450 if ( setdirowner( ntohl(aint), -1, vol_noadouble(vol) ) < 0 ) {
1454 err = AFPERR_ACCESS;
1455 goto setdirparam_done;
1459 goto setdirparam_done;
1462 LOG(log_error, logtype_afpd, "setdirparam: setdirowner: %s",
1469 change_parent_mdate = 1;
1470 memcpy( &aint, buf, sizeof( aint ));
1471 buf += sizeof( aint );
1472 if (curdir->d_did == DIRDID_ROOT)
1473 setdeskowner( -1, ntohl(aint) );
1475 #if 0 /* don't error if we can't set the desktop owner. */
1479 err = AFPERR_ACCESS;
1480 goto setdirparam_done;
1484 goto setdirparam_done;
1487 LOG(log_error, logtype_afpd, "setdirparam: setdeskowner: %m" );
1490 goto setdirparam_done;
1496 if ( setdirowner( -1, ntohl(aint), vol_noadouble(vol) ) < 0 ) {
1500 err = AFPERR_ACCESS;
1501 goto setdirparam_done;
1505 goto setdirparam_done;
1508 LOG(log_error, logtype_afpd, "setdirparam: setdirowner: %s",
1515 case DIRPBIT_ACCESS :
1517 change_parent_mdate = 1;
1518 ma.ma_user = *buf++;
1519 ma.ma_world = *buf++;
1520 ma.ma_group = *buf++;
1521 ma.ma_owner = *buf++;
1523 if (curdir->d_did == DIRDID_ROOT)
1524 setdeskmode(mtoumode( &ma ));
1525 #if 0 /* don't error if we can't set the desktop mode */
1529 err = AFPERR_ACCESS;
1530 goto setdirparam_done;
1533 goto setdirparam_done;
1535 LOG(log_error, logtype_afpd, "setdirparam: setdeskmode: %s",
1539 goto setdirparam_done;
1543 if ( setdirmode( mtoumode( &ma ), vol_noadouble(vol),
1544 (vol->v_flags & AFPVOL_DROPBOX)) < 0 ) {
1548 err = AFPERR_ACCESS;
1549 goto setdirparam_done;
1552 goto setdirparam_done;
1554 LOG(log_error, logtype_afpd, "setdirparam: setdirmode: %s",
1557 goto setdirparam_done;
1562 /* Ignore what the client thinks we should do to the
1563 ProDOS information block. Skip over the data and
1564 report nothing amiss. <shirsch@ibm.net> */
1565 case DIRPBIT_PDINFO :
1566 if (afp_version < 30) {
1571 err = AFPERR_BITMAP;
1572 goto setdirparam_done;
1581 if (change_mdate && newdate == 0 && gettimeofday(&tv, NULL) == 0) {
1582 newdate = AD_DATE_FROM_UNIX(tv.tv_sec);
1586 ad_setdate(&ad, AD_DATE_MODIFY, newdate);
1587 ut.actime = ut.modtime = AD_DATE_TO_UNIX(newdate);
1592 ad_flush( &ad, ADFLAGS_HF );
1593 ad_close( &ad, ADFLAGS_HF );
1596 if (change_parent_mdate && curdir->d_did != DIRDID_ROOT
1597 && gettimeofday(&tv, NULL) == 0) {
1598 if (!movecwd(vol, curdir->d_parent)) {
1599 newdate = AD_DATE_FROM_UNIX(tv.tv_sec);
1600 bitmap = 1<<DIRPBIT_MDATE;
1601 setdirparams(vol, &Cur_Path, bitmap, (char *)&newdate);
1602 /* should we reset curdir ?*/
1609 int afp_createdir(obj, ibuf, ibuflen, rbuf, rbuflen )
1612 int ibuflen, *rbuflen;
1618 struct path *s_path;
1625 memcpy( &vid, ibuf, sizeof( vid ));
1626 ibuf += sizeof( vid );
1627 if (( vol = getvolbyvid( vid )) == NULL ) {
1628 return( AFPERR_PARAM );
1631 if (vol->v_flags & AFPVOL_RO)
1632 return AFPERR_VLOCK;
1634 memcpy( &did, ibuf, sizeof( did ));
1635 ibuf += sizeof( did );
1636 if (( dir = dirlookup( vol, did )) == NULL ) {
1637 return( AFPERR_NOOBJ );
1640 if (( s_path = cname( vol, dir, &ibuf )) == NULL ) {
1643 return( AFPERR_ACCESS );
1644 case EEXIST: /* FIXME this one is impossible? */
1645 return( AFPERR_EXIST );
1647 return( AFPERR_NOOBJ );
1650 /* FIXME check done elswhere? cname was able to move curdir to it! */
1651 if (*s_path->m_name == '\0')
1652 return AFPERR_EXIST;
1654 upath = s_path->u_name;
1657 if (0 != (ret = check_name(vol, upath))) {
1662 if ( ad_mkdir( upath, DIRBITS | 0777 ) < 0 ) {
1665 return( AFPERR_NOOBJ );
1667 return( AFPERR_VLOCK );
1669 return( AFPERR_ACCESS );
1671 return( AFPERR_EXIST );
1674 return( AFPERR_DFULL );
1676 return( AFPERR_PARAM );
1680 if (of_stat(s_path) < 0) {
1683 if ((dir = adddir( vol, curdir, s_path)) == NULL) {
1687 if ( movecwd( vol, dir ) < 0 ) {
1688 return( AFPERR_PARAM );
1691 memset(&ad, 0, sizeof(ad));
1692 if (ad_open( "", vol_noadouble(vol)|ADFLAGS_HF|ADFLAGS_DIR,
1693 O_RDWR|O_CREAT, 0666, &ad ) < 0) {
1694 if (vol_noadouble(vol))
1695 goto createdir_done;
1696 return( AFPERR_ACCESS );
1699 ad_setentrylen( &ad, ADEID_NAME, strlen( s_path->m_name ));
1700 memcpy( ad_entry( &ad, ADEID_NAME ), s_path->m_name,
1701 ad_getentrylen( &ad, ADEID_NAME ));
1702 ad_flush( &ad, ADFLAGS_HF );
1703 ad_close( &ad, ADFLAGS_HF );
1706 memcpy( rbuf, &dir->d_did, sizeof( u_int32_t ));
1707 *rbuflen = sizeof( u_int32_t );
1708 setvoltime(obj, vol );
1713 * dst new unix filename (not a pathname)
1714 * newname new mac name
1718 int renamedir(src, dst, dir, newparent, newname, noadouble)
1719 char *src, *dst, *newname;
1720 struct dir *dir, *newparent;
1721 const int noadouble;
1728 /* existence check moved to afp_moveandrename */
1729 if ( rename( src, dst ) < 0 ) {
1732 return( AFPERR_NOOBJ );
1734 return( AFPERR_ACCESS );
1736 return AFPERR_VLOCK;
1738 /* tried to move directory into a subdirectory of itself */
1739 return AFPERR_CANTMOVE;
1741 /* this needs to copy and delete. bleah. that means we have
1742 * to deal with entire directory hierarchies. */
1743 if ((err = copydir(src, dst, noadouble)) < 0) {
1747 if ((err = deletedir(src)) < 0)
1751 return( AFPERR_PARAM );
1755 memset(&ad, 0, sizeof(ad));
1756 if ( ad_open( dst, ADFLAGS_HF|ADFLAGS_DIR, O_RDWR, 0, &ad) < 0 ) {
1760 len = strlen(newname);
1761 goto renamedir_done;
1763 return( AFPERR_NOOBJ );
1765 return( AFPERR_ACCESS );
1767 return( AFPERR_PARAM );
1770 len = strlen( newname );
1771 ad_setentrylen( &ad, ADEID_NAME, len );
1772 memcpy( ad_entry( &ad, ADEID_NAME ), newname, len );
1773 ad_flush( &ad, ADFLAGS_HF );
1774 ad_close( &ad, ADFLAGS_HF );
1777 if (dir->d_m_name == dir->d_u_name)
1778 dir->d_u_name = NULL;
1780 if ((buf = (char *) realloc( dir->d_m_name, len + 1 )) == NULL ) {
1781 LOG(log_error, logtype_afpd, "renamedir: realloc mac name: %s", strerror(errno) );
1782 /* FIXME : fatal ? */
1785 dir->d_m_name = buf;
1786 strcpy( dir->d_m_name, newname );
1788 if (newname == dst) {
1789 free(dir->d_u_name);
1790 dir->d_u_name = dir->d_m_name;
1793 if ((buf = (char *) realloc( dir->d_u_name, strlen(dst) + 1 )) == NULL ) {
1794 LOG(log_error, logtype_afpd, "renamedir: realloc unix name: %s", strerror(errno) );
1797 dir->d_u_name = buf;
1798 strcpy( dir->d_u_name, dst );
1801 if (( parent = dir->d_parent ) == NULL ) {
1804 if ( parent == newparent ) {
1808 /* detach from old parent and add to new one. */
1809 dirchildremove(parent, dir);
1810 dir->d_parent = newparent;
1811 dirchildadd(newparent, dir);
1815 #define DOT_APPLEDOUBLE_LEN 13
1816 /* delete an empty directory */
1817 int deletecurdir( vol, path, pathlen )
1818 const struct vol *vol;
1829 if ( curdir->d_parent == NULL ) {
1830 return( AFPERR_ACCESS );
1833 if ( curdir->d_child != NULL ) {
1834 return( AFPERR_DIRNEMPT );
1839 memset(&ad, 0, sizeof(ad));
1840 if ( ad_open( ".", ADFLAGS_HF|ADFLAGS_DIR, O_RDONLY,
1841 DIRBITS | 0777, &ad) == 0 ) {
1843 ad_getattr(&ad, &ashort);
1844 ad_close( &ad, ADFLAGS_HF );
1845 if ((ashort & htons(ATTRBIT_NODELETE))) {
1846 return AFPERR_OLOCK;
1850 /* delete stray .AppleDouble files. this happens to get .Parent files
1852 if ((dp = opendir(".AppleDouble"))) {
1853 strcpy(path, ".AppleDouble/");
1854 while ((de = readdir(dp))) {
1855 /* skip this and previous directory */
1856 if (!strcmp(de->d_name, ".") || !strcmp(de->d_name, ".."))
1859 /* bail if the file exists in the current directory.
1860 * note: this will not fail with dangling symlinks */
1861 if (stat(de->d_name, &st) == 0) {
1863 return AFPERR_DIRNEMPT;
1866 strcpy(path + DOT_APPLEDOUBLE_LEN, de->d_name);
1867 if (unlink(path) < 0) {
1872 return( AFPERR_ACCESS );
1874 return AFPERR_VLOCK;
1878 return( AFPERR_PARAM );
1885 if ( rmdir( ".AppleDouble" ) < 0 ) {
1890 return( AFPERR_DIRNEMPT );
1892 return AFPERR_VLOCK;
1895 return( AFPERR_ACCESS );
1897 return( AFPERR_PARAM );
1901 /* now get rid of dangling symlinks */
1902 if ((dp = opendir("."))) {
1903 while ((de = readdir(dp))) {
1904 /* skip this and previous directory */
1905 if (!strcmp(de->d_name, ".") || !strcmp(de->d_name, ".."))
1908 /* bail if it's not a symlink */
1909 if ((lstat(de->d_name, &st) == 0) && !S_ISLNK(st.st_mode)) {
1910 return AFPERR_DIRNEMPT;
1913 if (unlink(de->d_name) < 0) {
1917 return( AFPERR_ACCESS );
1919 return AFPERR_VLOCK;
1923 return( AFPERR_PARAM );
1930 if ( movecwd( vol, curdir->d_parent ) < 0 ) {
1931 return( AFPERR_NOOBJ );
1934 if ( rmdir(fdir->d_u_name) < 0 ) {
1937 return( AFPERR_NOOBJ );
1939 return( AFPERR_DIRNEMPT );
1942 return( AFPERR_ACCESS );
1944 return AFPERR_VLOCK;
1946 return( AFPERR_PARAM );
1950 dirchildremove(curdir, fdir);
1952 cnid_delete(vol->v_db, fdir->d_did);
1953 #endif /* CNID_DB */
1954 dir_remove( vol, fdir );
1959 int afp_mapid(obj, ibuf, ibuflen, rbuf, rbuflen )
1962 int ibuflen, *rbuflen;
1972 sfunc = (unsigned char) *ibuf++;
1973 memcpy( &id, ibuf, sizeof( id ));
1981 case 3 :/* unicode */
1982 if (( pw = getpwuid( id )) == NULL ) {
1983 return( AFPERR_NOITEM );
1989 case 4 : /* unicode */
1990 if (( gr = (struct group *)getgrgid( id )) == NULL ) {
1991 return( AFPERR_NOITEM );
1998 return( AFPERR_PARAM );
2003 if (afp_version < 30) {
2004 return( AFPERR_PARAM );
2007 /* map to unicode */
2010 len = strlen( name );
2017 u_int16_t tp = htons(len);
2018 memcpy(rbuf, &tp, sizeof(tp));
2027 memcpy( rbuf, name, len );
2033 int afp_mapname(obj, ibuf, ibuflen, rbuf, rbuflen )
2036 int ibuflen, *rbuflen;
2045 sfunc = (unsigned char) *ibuf++;
2048 case 2 : /* unicode */
2049 memcpy(&ulen, ibuf, sizeof(ulen));
2055 len = (unsigned char) *ibuf++;
2059 return( AFPERR_PARAM );
2066 case 1 : /* unicode */
2068 if (( pw = (struct passwd *)getpwnam( ibuf )) == NULL ) {
2070 return( AFPERR_NOITEM );
2075 case 2 : /* unicode */
2077 if (( gr = (struct group *)getgrnam( ibuf )) == NULL ) {
2079 return( AFPERR_NOITEM );
2088 memcpy( rbuf, &id, sizeof( id ));
2089 *rbuflen = sizeof( id );
2093 /* ------------------------------------
2094 variable DID support
2096 int afp_closedir(obj, ibuf, ibuflen, rbuf, rbuflen )
2099 int ibuflen, *rbuflen;
2110 /* do nothing as dids are static for the life of the process. */
2114 memcpy(&vid, ibuf, sizeof( vid ));
2115 ibuf += sizeof( vid );
2116 if (( vol = getvolbyvid( vid )) == NULL ) {
2117 return( AFPERR_PARAM );
2120 memcpy( &did, ibuf, sizeof( did ));
2121 ibuf += sizeof( did );
2122 if (( dir = dirlookup( vol, did )) == NULL ) {
2123 return( AFPERR_PARAM );
2126 /* dir_remove -- deletedid */
2132 /* did creation gets done automatically
2133 * there's a pb again with case but move it to cname
2135 int afp_opendir(obj, ibuf, ibuflen, rbuf, rbuflen )
2138 int ibuflen, *rbuflen;
2141 struct dir *parentdir;
2149 memcpy(&vid, ibuf, sizeof(vid));
2150 ibuf += sizeof( vid );
2152 if (( vol = getvolbyvid( vid )) == NULL ) {
2153 return( AFPERR_PARAM );
2156 memcpy(&did, ibuf, sizeof(did));
2157 ibuf += sizeof(did);
2159 if (( parentdir = dirlookup( vol, did )) == NULL ) {
2160 return( AFPERR_NOOBJ );
2163 if (( path = cname( vol, parentdir, &ibuf )) == NULL ) {
2166 return( AFPERR_ACCESS );
2168 return( AFPERR_NOOBJ );
2172 if ( *path->m_name != '\0' ) {
2173 return( AFPERR_BADTYPE ); /* not a directory */
2176 if ( !path->st_valid && of_stat(path ) < 0 ) {
2177 return( AFPERR_NOOBJ );
2179 if ( path->st_errno ) {
2180 return( AFPERR_NOOBJ );
2183 memcpy(rbuf, &curdir->d_did, sizeof(curdir->d_did));
2184 *rbuflen = sizeof(curdir->d_did);