183 	struct ctl_node *node, struct ctl_table *table)  in init_header()  argument
185 	head->ctl_table = table;  in init_header()
186 	head->ctl_table_arg = table;  in init_header()
198 		for (entry = table; entry->procname; entry++, node++)  in init_header()
445 static int sysctl_perm(struct ctl_table_header *head, struct ctl_table *table, int op)  in sysctl_perm()  argument
451 		mode = root->permissions(head, table);  in sysctl_perm()
453 		mode = table->mode;  in sysctl_perm()
459 		struct ctl_table_header *head, struct ctl_table *table)  in proc_sys_make_inode()  argument
481 	ei->sysctl_entry = table;  in proc_sys_make_inode()
487 	inode->i_mode = table->mode;  in proc_sys_make_inode()
488 	if (!S_ISDIR(table->mode)) {  in proc_sys_make_inode()
501 		root->set_ownership(head, table, &inode->i_uid, &inode->i_gid);  in proc_sys_make_inode()
572 	struct ctl_table *table = PROC_I(inode)->sysctl_entry;  in proc_sys_call_handler()  local
584 	if (sysctl_perm(head, table, write ? MAY_WRITE : MAY_READ))  in proc_sys_call_handler()
589 	if (!table->proc_handler)  in proc_sys_call_handler()
594 	error = table->proc_handler(table, write, buf, &res, ppos);  in proc_sys_call_handler()
618 	struct ctl_table *table = PROC_I(inode)->sysctl_entry;  in proc_sys_open()  local
624 	if (table->poll)  in proc_sys_open()
625 		filp->private_data = proc_sys_poll_event(table->poll);  in proc_sys_open()
636 	struct ctl_table *table = PROC_I(inode)->sysctl_entry;  in proc_sys_poll()  local
644 	if (!table->proc_handler)  in proc_sys_poll()
647 	if (!table->poll)  in proc_sys_poll()
651 	poll_wait(filp, &table->poll->wait, wait);  in proc_sys_poll()
653 	if (event != atomic_read(&table->poll->event)) {  in proc_sys_poll()
654 		filp->private_data = proc_sys_poll_event(table->poll);  in proc_sys_poll()
667 				struct ctl_table *table)  in proc_sys_fill_cache()  argument
675 	qname.name = table->procname;  in proc_sys_fill_cache()
676 	qname.len  = strlen(table->procname);  in proc_sys_fill_cache()
687 			inode = proc_sys_make_inode(dir->d_sb, head, table);  in proc_sys_fill_cache()
716 				    struct ctl_table *table)  in proc_sys_link_fill_cache()  argument
725 	if (sysctl_follow_link(&head, &table))  in proc_sys_link_fill_cache()
728 	ret = proc_sys_fill_cache(file, ctx, head, table);  in proc_sys_link_fill_cache()
734 static int scan(struct ctl_table_header *head, struct ctl_table *table,  in scan()  argument
743 	if (unlikely(S_ISLNK(table->mode)))  in scan()
744 		res = proc_sys_link_fill_cache(file, ctx, head, table);  in scan()
746 		res = proc_sys_fill_cache(file, ctx, head, table);  in scan()
790 	struct ctl_table *table;  in proc_sys_permission()  local
801 	table = PROC_I(inode)->sysctl_entry;  in proc_sys_permission()
802 	if (!table) /* global root - r-xr-xr-x */  in proc_sys_permission()
805 		error = sysctl_perm(head, table, mask & ~MAY_NOT_BLOCK);  in proc_sys_permission()
833 	struct ctl_table *table = PROC_I(inode)->sysctl_entry;  in proc_sys_getattr()  local
839 	if (table)  in proc_sys_getattr()
840 		stat->mode = (stat->mode & S_IFMT) | table->mode;  in proc_sys_getattr()
943 	struct ctl_table *table;  in new_dir()  local
955 	table = (struct ctl_table *)(node + 1);  in new_dir()
956 	new_name = (char *)(table + 2);  in new_dir()
959 	table[0].procname = new_name;  in new_dir()
960 	table[0].mode = S_IFDIR|S_IRUGO|S_IXUGO;  in new_dir()
961 	init_header(&new->header, set->dir.header.root, set, node, table);  in new_dir()
1075 static int sysctl_err(const char *path, struct ctl_table *table, char *fmt, ...)  in sysctl_err()  argument
1085 	       path, table->procname, &vaf);  in sysctl_err()
1091 static int sysctl_check_table_array(const char *path, struct ctl_table *table)  in sysctl_check_table_array()  argument
1095 	if ((table->proc_handler == proc_douintvec) ||  in sysctl_check_table_array()
1096 	    (table->proc_handler == proc_douintvec_minmax)) {  in sysctl_check_table_array()
1097 		if (table->maxlen != sizeof(unsigned int))  in sysctl_check_table_array()
1098 			err |= sysctl_err(path, table, "array not allowed");  in sysctl_check_table_array()
1104 static int sysctl_check_table(const char *path, struct ctl_table *table)  in sysctl_check_table()  argument
1107 	for (; table->procname; table++) {  in sysctl_check_table()
1108 		if (table->child)  in sysctl_check_table()
1109 			err |= sysctl_err(path, table, "Not a file");  in sysctl_check_table()
1111 		if ((table->proc_handler == proc_dostring) ||  in sysctl_check_table()
1112 		    (table->proc_handler == proc_dointvec) ||  in sysctl_check_table()
1113 		    (table->proc_handler == proc_douintvec) ||  in sysctl_check_table()
1114 		    (table->proc_handler == proc_douintvec_minmax) ||  in sysctl_check_table()
1115 		    (table->proc_handler == proc_dointvec_minmax) ||  in sysctl_check_table()
1116 		    (table->proc_handler == proc_dointvec_jiffies) ||  in sysctl_check_table()
1117 		    (table->proc_handler == proc_dointvec_userhz_jiffies) ||  in sysctl_check_table()
1118 		    (table->proc_handler == proc_dointvec_ms_jiffies) ||  in sysctl_check_table()
1119 		    (table->proc_handler == proc_doulongvec_minmax) ||  in sysctl_check_table()
1120 		    (table->proc_handler == proc_doulongvec_ms_jiffies_minmax)) {  in sysctl_check_table()
1121 			if (!table->data)  in sysctl_check_table()
1122 				err |= sysctl_err(path, table, "No data");  in sysctl_check_table()
1123 			if (!table->maxlen)  in sysctl_check_table()
1124 				err |= sysctl_err(path, table, "No maxlen");  in sysctl_check_table()
1126 				err |= sysctl_check_table_array(path, table);  in sysctl_check_table()
1128 		if (!table->proc_handler)  in sysctl_check_table()
1129 			err |= sysctl_err(path, table, "No proc_handler");  in sysctl_check_table()
1131 		if ((table->mode & (S_IRUGO|S_IWUGO)) != table->mode)  in sysctl_check_table()
1132 			err |= sysctl_err(path, table, "bogus .mode 0%o",  in sysctl_check_table()
1133 				table->mode);  in sysctl_check_table()
1138 static struct ctl_table_header *new_links(struct ctl_dir *dir, struct ctl_table *table,  in new_links()  argument
1149 	for (entry = table; entry->procname; entry++) {  in new_links()
1167 	for (link = link_table, entry = table; entry->procname; link++, entry++) {  in new_links()
1182 	struct ctl_table *table, struct ctl_table_root *link_root)  in get_links()  argument
1188 	for (entry = table; entry->procname; entry++) {  in get_links()
1201 	for (entry = table; entry->procname; entry++) {  in get_links()
1294 	const char *path, struct ctl_table *table)  in __register_sysctl_table()  argument
1304 	for (entry = table; entry->procname; entry++)  in __register_sysctl_table()
1313 	init_header(header, root, set, node, table);  in __register_sysctl_table()
1314 	if (sysctl_check_table(path, table))  in __register_sysctl_table()
1369 struct ctl_table_header *register_sysctl(const char *path, struct ctl_table *table)  in register_sysctl()  argument
1372 					path, table);  in register_sysctl()
1389 static int count_subheaders(struct ctl_table *table)  in count_subheaders()  argument
1396 	if (!table || !table->procname)  in count_subheaders()
1399 	for (entry = table; entry->procname; entry++) {  in count_subheaders()
1410 	struct ctl_table *table)  in register_leaf_sysctl_tables()  argument
1418 	for (entry = table; entry->procname; entry++) {  in register_leaf_sysctl_tables()
1425 	files = table;  in register_leaf_sysctl_tables()
1435 		for (new = files, entry = table; entry->procname; entry++) {  in register_leaf_sysctl_tables()
1459 	for (entry = table; entry->procname; entry++) {  in register_leaf_sysctl_tables()
1495 	const struct ctl_path *path, struct ctl_table *table)  in __register_sysctl_paths()  argument
1497 	struct ctl_table *ctl_table_arg = table;  in __register_sysctl_paths()
1498 	int nr_subheaders = count_subheaders(table);  in __register_sysctl_paths()
1513 	while (table->procname && table->child && !table[1].procname) {  in __register_sysctl_paths()
1514 		pos = append_path(new_path, pos, table->procname);  in __register_sysctl_paths()
1517 		table = table->child;  in __register_sysctl_paths()
1520 		header = __register_sysctl_table(set, new_path, table);  in __register_sysctl_paths()
1534 						set, table))  in __register_sysctl_paths()
1545 		struct ctl_table *table = subh->ctl_table_arg;  in __register_sysctl_paths()  local
1547 		kfree(table);  in __register_sysctl_paths()
1565 						struct ctl_table *table)  in register_sysctl_paths()  argument
1568 					path, table);  in register_sysctl_paths()
1581 struct ctl_table_header *register_sysctl_table(struct ctl_table *table)  in register_sysctl_table()  argument
1585 	return register_sysctl_paths(null_path, table);  in register_sysctl_table()
1662 			struct ctl_table *table = subh->ctl_table_arg;  in unregister_sysctl_table()  local
1664 			kfree(table);  in unregister_sysctl_table()