fs.d/autofs/ns_fnmount.c

41  * The maximum sizes of map names, key names, composite names, and status
61  * map/context "map", and a set of default mount options, return (in
68  *	getmapent_fn(char *key, char *map, char *opts, uid_t uid,
76  * representing an indirect mount point.  The map and key strings are
78  * "FNPREFIX/cname" == "map/key".
81 process_ref(const FN_ref_t *ref, const char *cname, char *map, char *key,
88  *     map:	map name for ref
89  *     maplen:	strlen(map)
90  *     mntpnt:	suffix of map where the current mount request begins
98 frontier(mapent *mapents, const FN_ref_t *ref, char *map, size_t maplen,
102  * Called by frontier(), once for each "name" that it finds.  map is
104  * "map/name".  If ref is found to be along the frontier, add the
110 frontier_aux(mapent *mapents, const FN_ref_t *ref, char *map, size_t maplen,
139  * Given a map name and its current length, append "/name".  Return
143 append_mapname(char *map, size_t maplen, const char *name);
209 getmapent_fn(char *key, char *map, char *opts, uid_t uid, bool_t shallow,
230 	 * For direct mounts, the key is the entire path, and the map
232 	 * apart the map name and key.  The "root" of the mapent is
235 	strcpy(mapname, map);
243 	map = mapname;
244 	maplen = strlen(map);
248 			syslog(LOG_ERR, "name %s/%s too long", map, key);
255 		sprintf(cname, "%s/%s", map + FNPREFIXLEN + 1, key);
300 	    process_ref(ref, cname, map, key, opts, root, shallow, status);
309 process_ref(const FN_ref_t *ref, const char *cname, char *map, char *key,
343 			mapents = parse_entry(key, map, opts, &ml, NULL, 0,
406 		/* "map" => "map/key" */
407 		if ((maplen = append_mapname(map, strlen(map), key)) == 0) {
410 		return (frontier(mapents, ref, map, maplen, map + maplen,
419 	    strdup(""), concat(map, '/', key)));
433 frontier(mapent *mapents, const FN_ref_t *ref, char *map, size_t maplen,
446 			logstat(status, "from_ref failed for", map);
454 		logstat(status, "list_bindings failed for", map);
464 				    "FNS string error listing %s", map);
469 		mapents = frontier_aux(mapents, child_ref, map, maplen,
480 		logstat(status, "error while listing", map);
498 frontier_aux(mapent *mapents, const FN_ref_t *ref, char *map, size_t maplen,
505 	char		*cname = map + FNPREFIXLEN + 1;	/* for error msgs */
516 	/* "map" => "map/name" */
517 	if ((maplen = append_mapname(map, maplen, name)) == 0) {
555 		    strdup(""), strdup(map));
566 		    frontier(mapents, ref, map, maplen, mntpnt, opts, status);
568 	map[maplen_save] = '\0';	/* "map/name" => "map" */
650 append_mapname(char *map, size_t maplen, const char *name)
657 			    map + FNPREFIXLEN + 1, name);
661 	sprintf(map + maplen, "/%s", name);