1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #include <regex.h> 27 #include <devfsadm.h> 28 #include <stdio.h> 29 #include <strings.h> 30 #include <stdlib.h> 31 #include <limits.h> 32 #include <sys/mkdev.h> 33 #include <sys/fs/zfs.h> 34 35 /* zfs name info */ 36 37 static int zfs(di_minor_t minor, di_node_t node); 38 39 /* 40 * devfs create callback register 41 */ 42 static devfsadm_create_t zfs_create_cbt[] = { 43 { "pseudo", "ddi_pseudo", ZFS_DRIVER, 44 TYPE_EXACT | DRV_EXACT, ILEVEL_0, zfs, 45 }, 46 }; 47 DEVFSADM_CREATE_INIT_V0(zfs_create_cbt); 48 49 /* 50 * The zfs control node looks like this: 51 * /dev/zfs -> /devices/pseudo/zfs@0:zfs 52 */ 53 static int 54 zfs(di_minor_t minor, di_node_t node) 55 { 56 char mn[MAXNAMELEN + 1]; 57 58 (void) strcpy(mn, di_minor_name(minor)); 59 60 if (strcmp(mn, ZFS_DRIVER) == 0) { 61 (void) devfsadm_mklink(ZFS_DRIVER, node, minor, 0); 62 } 63 return (DEVFSADM_CONTINUE); 64 } 65