186 	struct ctl_node *node, struct ctl_table *table)  in init_header()  argument
188 	head->ctl_table = table;  in init_header()
189 	head->ctl_table_arg = table;  in init_header()
201 		for (entry = table; entry->procname; entry++, node++)  in init_header()
415 static int sysctl_perm(struct ctl_table_header *head, struct ctl_table *table, int op)  in sysctl_perm()  argument
421 		mode = root->permissions(head, table);  in sysctl_perm()
423 		mode = table->mode;  in sysctl_perm()
429 		struct ctl_table_header *head, struct ctl_table *table)  in proc_sys_make_inode()  argument
450 	ei->sysctl_entry = table;  in proc_sys_make_inode()
456 	inode->i_mode = table->mode;  in proc_sys_make_inode()
457 	if (!S_ISDIR(table->mode)) {  in proc_sys_make_inode()
470 		root->set_ownership(head, table, &inode->i_uid, &inode->i_gid);  in proc_sys_make_inode()
545 	struct ctl_table *table = PROC_I(inode)->sysctl_entry;  in proc_sys_call_handler()  local
558 	if (sysctl_perm(head, table, write ? MAY_WRITE : MAY_READ))  in proc_sys_call_handler()
563 	if (!table->proc_handler)  in proc_sys_call_handler()
581 	error = BPF_CGROUP_RUN_PROG_SYSCTL(head, table, write, &kbuf, &count,  in proc_sys_call_handler()
587 	error = table->proc_handler(table, write, kbuf, &count, &iocb->ki_pos);  in proc_sys_call_handler()
619 	struct ctl_table *table = PROC_I(inode)->sysctl_entry;  in proc_sys_open()  local
625 	if (table->poll)  in proc_sys_open()
626 		filp->private_data = proc_sys_poll_event(table->poll);  in proc_sys_open()
637 	struct ctl_table *table = PROC_I(inode)->sysctl_entry;  in proc_sys_poll()  local
645 	if (!table->proc_handler)  in proc_sys_poll()
648 	if (!table->poll)  in proc_sys_poll()
652 	poll_wait(filp, &table->poll->wait, wait);  in proc_sys_poll()
654 	if (event != atomic_read(&table->poll->event)) {  in proc_sys_poll()
655 		filp->private_data = proc_sys_poll_event(table->poll);  in proc_sys_poll()
668 				struct ctl_table *table)  in proc_sys_fill_cache()  argument
676 	qname.name = table->procname;  in proc_sys_fill_cache()
677 	qname.len  = strlen(table->procname);  in proc_sys_fill_cache()
688 			inode = proc_sys_make_inode(dir->d_sb, head, table);  in proc_sys_fill_cache()
717 				    struct ctl_table *table)  in proc_sys_link_fill_cache()  argument
726 	if (sysctl_follow_link(&head, &table))  in proc_sys_link_fill_cache()
729 	ret = proc_sys_fill_cache(file, ctx, head, table);  in proc_sys_link_fill_cache()
735 static int scan(struct ctl_table_header *head, struct ctl_table *table,  in scan()  argument
744 	if (unlikely(S_ISLNK(table->mode)))  in scan()
745 		res = proc_sys_link_fill_cache(file, ctx, head, table);  in scan()
747 		res = proc_sys_fill_cache(file, ctx, head, table);  in scan()
792 	struct ctl_table *table;  in proc_sys_permission()  local
803 	table = PROC_I(inode)->sysctl_entry;  in proc_sys_permission()
804 	if (!table) /* global root - r-xr-xr-x */  in proc_sys_permission()
807 		error = sysctl_perm(head, table, mask & ~MAY_NOT_BLOCK);  in proc_sys_permission()
837 	struct ctl_table *table = PROC_I(inode)->sysctl_entry;  in proc_sys_getattr()  local
843 	if (table)  in proc_sys_getattr()
844 		stat->mode = (stat->mode & S_IFMT) | table->mode;  in proc_sys_getattr()
949 	struct ctl_table *table;  in new_dir()  local
961 	table = (struct ctl_table *)(node + 1);  in new_dir()
962 	new_name = (char *)(table + 2);  in new_dir()
965 	table[0].procname = new_name;  in new_dir()
966 	table[0].mode = S_IFDIR|S_IRUGO|S_IXUGO;  in new_dir()
967 	init_header(&new->header, set->dir.header.root, set, node, table);  in new_dir()
1081 static int sysctl_err(const char *path, struct ctl_table *table, char *fmt, ...)  in sysctl_err()  argument
1091 	       path, table->procname, &vaf);  in sysctl_err()
1097 static int sysctl_check_table_array(const char *path, struct ctl_table *table)  in sysctl_check_table_array()  argument
1101 	if ((table->proc_handler == proc_douintvec) ||  in sysctl_check_table_array()
1102 	    (table->proc_handler == proc_douintvec_minmax)) {  in sysctl_check_table_array()
1103 		if (table->maxlen != sizeof(unsigned int))  in sysctl_check_table_array()
1104 			err |= sysctl_err(path, table, "array not allowed");  in sysctl_check_table_array()
1107 	if (table->proc_handler == proc_dou8vec_minmax) {  in sysctl_check_table_array()
1108 		if (table->maxlen != sizeof(u8))  in sysctl_check_table_array()
1109 			err |= sysctl_err(path, table, "array not allowed");  in sysctl_check_table_array()
1115 static int sysctl_check_table(const char *path, struct ctl_table *table)  in sysctl_check_table()  argument
1118 	for (; table->procname; table++) {  in sysctl_check_table()
1119 		if (table->child)  in sysctl_check_table()
1120 			err |= sysctl_err(path, table, "Not a file");  in sysctl_check_table()
1122 		if ((table->proc_handler == proc_dostring) ||  in sysctl_check_table()
1123 		    (table->proc_handler == proc_dointvec) ||  in sysctl_check_table()
1124 		    (table->proc_handler == proc_douintvec) ||  in sysctl_check_table()
1125 		    (table->proc_handler == proc_douintvec_minmax) ||  in sysctl_check_table()
1126 		    (table->proc_handler == proc_dointvec_minmax) ||  in sysctl_check_table()
1127 		    (table->proc_handler == proc_dou8vec_minmax) ||  in sysctl_check_table()
1128 		    (table->proc_handler == proc_dointvec_jiffies) ||  in sysctl_check_table()
1129 		    (table->proc_handler == proc_dointvec_userhz_jiffies) ||  in sysctl_check_table()
1130 		    (table->proc_handler == proc_dointvec_ms_jiffies) ||  in sysctl_check_table()
1131 		    (table->proc_handler == proc_doulongvec_minmax) ||  in sysctl_check_table()
1132 		    (table->proc_handler == proc_doulongvec_ms_jiffies_minmax)) {  in sysctl_check_table()
1133 			if (!table->data)  in sysctl_check_table()
1134 				err |= sysctl_err(path, table, "No data");  in sysctl_check_table()
1135 			if (!table->maxlen)  in sysctl_check_table()
1136 				err |= sysctl_err(path, table, "No maxlen");  in sysctl_check_table()
1138 				err |= sysctl_check_table_array(path, table);  in sysctl_check_table()
1140 		if (!table->proc_handler)  in sysctl_check_table()
1141 			err |= sysctl_err(path, table, "No proc_handler");  in sysctl_check_table()
1143 		if ((table->mode & (S_IRUGO|S_IWUGO)) != table->mode)  in sysctl_check_table()
1144 			err |= sysctl_err(path, table, "bogus .mode 0%o",  in sysctl_check_table()
1145 				table->mode);  in sysctl_check_table()
1150 static struct ctl_table_header *new_links(struct ctl_dir *dir, struct ctl_table *table,  in new_links()  argument
1161 	for (entry = table; entry->procname; entry++) {  in new_links()
1179 	for (link = link_table, entry = table; entry->procname; link++, entry++) {  in new_links()
1194 	struct ctl_table *table, struct ctl_table_root *link_root)  in get_links()  argument
1200 	for (entry = table; entry->procname; entry++) {  in get_links()
1213 	for (entry = table; entry->procname; entry++) {  in get_links()
1306 	const char *path, struct ctl_table *table)  in __register_sysctl_table()  argument
1316 	for (entry = table; entry->procname; entry++)  in __register_sysctl_table()
1325 	init_header(header, root, set, node, table);  in __register_sysctl_table()
1326 	if (sysctl_check_table(path, table))  in __register_sysctl_table()
1381 struct ctl_table_header *register_sysctl(const char *path, struct ctl_table *table)  in register_sysctl()  argument
1384 					path, table);  in register_sysctl()
1408 void __init __register_sysctl_init(const char *path, struct ctl_table *table,  in __register_sysctl_init()  argument
1411 	struct ctl_table_header *hdr = register_sysctl(path, table);  in __register_sysctl_init()
1433 static int count_subheaders(struct ctl_table *table)  in count_subheaders()  argument
1440 	if (!table || !table->procname)  in count_subheaders()
1443 	for (entry = table; entry->procname; entry++) {  in count_subheaders()
1454 	struct ctl_table *table)  in register_leaf_sysctl_tables()  argument
1462 	for (entry = table; entry->procname; entry++) {  in register_leaf_sysctl_tables()
1469 	files = table;  in register_leaf_sysctl_tables()
1479 		for (new = files, entry = table; entry->procname; entry++) {  in register_leaf_sysctl_tables()
1503 	for (entry = table; entry->procname; entry++) {  in register_leaf_sysctl_tables()
1539 	const struct ctl_path *path, struct ctl_table *table)  in __register_sysctl_paths()  argument
1541 	struct ctl_table *ctl_table_arg = table;  in __register_sysctl_paths()
1542 	int nr_subheaders = count_subheaders(table);  in __register_sysctl_paths()
1557 	while (table->procname && table->child && !table[1].procname) {  in __register_sysctl_paths()
1558 		pos = append_path(new_path, pos, table->procname);  in __register_sysctl_paths()
1561 		table = table->child;  in __register_sysctl_paths()
1564 		header = __register_sysctl_table(set, new_path, table);  in __register_sysctl_paths()
1578 						set, table))  in __register_sysctl_paths()
1589 		struct ctl_table *table = subh->ctl_table_arg;  in __register_sysctl_paths()  local
1591 		kfree(table);  in __register_sysctl_paths()
1609 						struct ctl_table *table)  in register_sysctl_paths()  argument
1612 					path, table);  in register_sysctl_paths()
1625 struct ctl_table_header *register_sysctl_table(struct ctl_table *table)  in register_sysctl_table()  argument
1629 	return register_sysctl_paths(null_path, table);  in register_sysctl_table()
1709 			struct ctl_table *table = subh->ctl_table_arg;  in unregister_sysctl_table()  local
1711 			kfree(table);  in unregister_sysctl_table()