1 /*-
2  * Copyright (c) 2005-2006 The FreeBSD Project
5  * Author: Victor Cruceru <soc-victor@freebsd.org>
65  * This structure is used to hold a SNMP table entry
66  * for HOST-RESOURCES-MIB's hrFSTable
85  * Next structure is used to keep o list of mappings from a specific name
86  * (a_name) to an entry in the hrFSTblEntry. We are trying to keep the same
87  * index for a specific name at least for the duration of one SNMP agent run.
94 	struct fs_entry *entry;  member
147  * Create an entry into the FS table and an entry in the map (if needed).
150 fs_entry_create(const char *name)  in fs_entry_create()  argument
152 	struct fs_entry	*entry;  in fs_entry_create()  local
155 	assert(name != NULL);  in fs_entry_create()
156 	assert(strlen(name) > 0);  in fs_entry_create()
159 		if (strcmp(map->a_name, name) == 0)  in fs_entry_create()
165 		/* new object - get a new index */  in fs_entry_create()
167 			/* Unrecoverable error - die clean and quicly*/  in fs_entry_create()
177 		mount_point_len = strlen(name) + 1;  in fs_entry_create()
181 		if ((map->a_name = malloc(mount_point_len)) == NULL) {  in fs_entry_create()
187 		strlcpy(map->a_name, name, mount_point_len);  in fs_entry_create()
189 		map->hrIndex = next_fs_index++;  in fs_entry_create()
190 		map->entry = NULL;  in fs_entry_create()
193 		HRDBG("%s added into hrFSMap at index=%d", name, map->hrIndex);  in fs_entry_create()
195 		HRDBG("%s exists in hrFSMap index=%d", name, map->hrIndex);  in fs_entry_create()
198 	if ((entry = malloc(sizeof(*entry))) == NULL) {  in fs_entry_create()
203 	if ((entry->mountPoint = strdup(name)) == NULL) {  in fs_entry_create()
205 		free(entry);  in fs_entry_create()
209 	entry->index = map->hrIndex;  in fs_entry_create()
210 	map->entry = entry;  in fs_entry_create()
212 	INSERT_OBJECT_INT(entry, &fs_tbl);  in fs_entry_create()
213 	return (entry);  in fs_entry_create()
217  * Delete an entry in the FS table.
220 fs_entry_delete(struct fs_entry* entry)  in fs_entry_delete()  argument
224 	assert(entry != NULL);  in fs_entry_delete()
226 	TAILQ_REMOVE(&fs_tbl, entry, link);  in fs_entry_delete()
228 		if (map->entry == entry) {  in fs_entry_delete()
229 			map->entry = NULL;  in fs_entry_delete()
232 	free(entry->mountPoint);  in fs_entry_delete()
233 	free(entry->remoteMountPoint);  in fs_entry_delete()
234 	free(entry);  in fs_entry_delete()
238  * Find a table entry by its name
241 fs_find_by_name(const char *name)  in fs_find_by_name()  argument
243 	struct fs_entry *entry;  in fs_find_by_name()  local
245 	TAILQ_FOREACH(entry, &fs_tbl, link)  in fs_find_by_name()
246 		if (strcmp(entry->mountPoint, name) == 0)  in fs_find_by_name()
247 			return (entry);  in fs_find_by_name()
262 		if (n1->entry != NULL) {  in fini_fs_tbl()
263 			TAILQ_REMOVE(&fs_tbl, n1->entry, link);  in fini_fs_tbl()
264 			free(n1->entry->mountPoint);  in fini_fs_tbl()
265 			free(n1->entry->remoteMountPoint);  in fini_fs_tbl()
266 			free(n1->entry);  in fini_fs_tbl()
268 		free(n1->a_name);  in fini_fs_tbl()
280 	struct fs_entry *entry;  in fs_tbl_pre_refresh()  local
282 	/* mark each entry as missisng */  in fs_tbl_pre_refresh()
283 	TAILQ_FOREACH(entry, &fs_tbl, link)  in fs_tbl_pre_refresh()
284 		entry->flags &= ~HR_FS_FOUND;  in fs_tbl_pre_refresh()
293 	struct fs_entry *entry, *entry_tmp;  in fs_tbl_post_refresh()  local
298 	TAILQ_FOREACH_SAFE(entry, &fs_tbl, link, entry_tmp)  in fs_tbl_post_refresh()
299 		if (!(entry->flags & HR_FS_FOUND))  in fs_tbl_post_refresh()
300 			fs_entry_delete(entry);  in fs_tbl_post_refresh()
312 	if (fs_tick == 0 || this_tick - fs_tick >= fs_tbl_refresh) {  in refresh_fs_tbl()
329 		if (strcmp(fs_type_map[t].str, fs_p->f_fstypename) == 0)  in fs_get_type()
336  * Given information returned from statfs(2) either create a new entry into
337  * the fs_tbl or refresh the entry if it is already there.
342 	struct fs_entry *entry;  in fs_tbl_process_statfs_entry()  local
351 	if ((entry = fs_find_by_name(fs_p->f_mntonname)) != NULL ||  in fs_tbl_process_statfs_entry()
352 	    (entry = fs_entry_create(fs_p->f_mntonname)) != NULL) {  in fs_tbl_process_statfs_entry()
353 		entry->flags |= HR_FS_FOUND;  in fs_tbl_process_statfs_entry()
355 		if (!(fs_p->f_flags & MNT_LOCAL)) {  in fs_tbl_process_statfs_entry()
357 			entry->remoteMountPoint = strdup(fs_p->f_mntfromname);  in fs_tbl_process_statfs_entry()
361 			entry->remoteMountPoint = strdup("");  in fs_tbl_process_statfs_entry()
365 		entry->type = fs_get_type(fs_p);  in fs_tbl_process_statfs_entry()
367 		if ((fs_p->f_flags & MNT_RDONLY) == MNT_RDONLY)  in fs_tbl_process_statfs_entry()
368 			entry->access = FS_READ_ONLY;  in fs_tbl_process_statfs_entry()
370 			entry->access = FS_READ_WRITE;  in fs_tbl_process_statfs_entry()
372 		/* FIXME - bootable fs ?! */  in fs_tbl_process_statfs_entry()
373 		entry->bootable = TRUTH_MK((fs_p->f_flags & MNT_ROOTFS)  in fs_tbl_process_statfs_entry()
376 		entry->storageIndex = storage_idx;  in fs_tbl_process_statfs_entry()
379 		memset(entry->lastFullBackupDate, 0,  in fs_tbl_process_statfs_entry()
380 		    sizeof(entry->lastFullBackupDate));  in fs_tbl_process_statfs_entry()
383 		memset(entry->lastPartialBackupDate, 0,  in fs_tbl_process_statfs_entry()
384 		    sizeof(entry->lastPartialBackupDate));  in fs_tbl_process_statfs_entry()
386 		handle_partition_fs_index(fs_p->f_mntfromname, entry->index);  in fs_tbl_process_statfs_entry()
399 	struct fs_entry *entry;  in op_hrFSTable()  local
406 		if ((entry = NEXT_OBJECT_INT(&fs_tbl,  in op_hrFSTable()
407 		    &value->var, sub)) == NULL)  in op_hrFSTable()
409 		value->var.len = sub + 1;  in op_hrFSTable()
410 		value->var.subs[sub] = entry->index;  in op_hrFSTable()
414 		if ((entry = FIND_OBJECT_INT(&fs_tbl,  in op_hrFSTable()
415 		    &value->var, sub)) == NULL)  in op_hrFSTable()
420 		if ((entry = FIND_OBJECT_INT(&fs_tbl,  in op_hrFSTable()
421 		    &value->var, sub)) == NULL)  in op_hrFSTable()
431 	switch (value->var.subs[sub - 1]) {  in op_hrFSTable()
434 		value->v.integer = entry->index;  in op_hrFSTable()
438 		return (string_get(value, entry->mountPoint, -1));  in op_hrFSTable()
441 		if (entry->remoteMountPoint == NULL)  in op_hrFSTable()
442 			return (string_get(value, "", -1));  in op_hrFSTable()
444 			return (string_get(value, entry->remoteMountPoint, -1));  in op_hrFSTable()
448 		assert(entry->type != NULL);  in op_hrFSTable()
449 		value->v.oid = *(entry->type);  in op_hrFSTable()
453 		value->v.integer = entry->access;  in op_hrFSTable()
457 		value->v.integer = entry->bootable;  in op_hrFSTable()
461 		value->v.integer = entry->storageIndex;  in op_hrFSTable()
465 		return (string_get(value, entry->lastFullBackupDate, 8));  in op_hrFSTable()
468 		return (string_get(value, entry->lastPartialBackupDate, 8));  in op_hrFSTable()