1*7c478bd9Sstevel@tonic-gate /*
2*7c478bd9Sstevel@tonic-gate * CDDL HEADER START
3*7c478bd9Sstevel@tonic-gate *
4*7c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the
5*7c478bd9Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
6*7c478bd9Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance
7*7c478bd9Sstevel@tonic-gate * with the License.
8*7c478bd9Sstevel@tonic-gate *
9*7c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*7c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
11*7c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions
12*7c478bd9Sstevel@tonic-gate * and limitations under the License.
13*7c478bd9Sstevel@tonic-gate *
14*7c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
15*7c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*7c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
17*7c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
18*7c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
19*7c478bd9Sstevel@tonic-gate *
20*7c478bd9Sstevel@tonic-gate * CDDL HEADER END
21*7c478bd9Sstevel@tonic-gate */
22*7c478bd9Sstevel@tonic-gate /*
23*7c478bd9Sstevel@tonic-gate * Copyright (c) 2000-2001 by Sun Microsystems, Inc.
24*7c478bd9Sstevel@tonic-gate * All rights reserved.
25*7c478bd9Sstevel@tonic-gate */
26*7c478bd9Sstevel@tonic-gate
27*7c478bd9Sstevel@tonic-gate #include <regex.h>
28*7c478bd9Sstevel@tonic-gate #include <devfsadm.h>
29*7c478bd9Sstevel@tonic-gate #include <stdio.h>
30*7c478bd9Sstevel@tonic-gate #include <strings.h>
31*7c478bd9Sstevel@tonic-gate #include <stdlib.h>
32*7c478bd9Sstevel@tonic-gate #include <limits.h>
33*7c478bd9Sstevel@tonic-gate #include <sys/fssnap_if.h>
34*7c478bd9Sstevel@tonic-gate
35*7c478bd9Sstevel@tonic-gate
36*7c478bd9Sstevel@tonic-gate static int fssnap(di_minor_t minor, di_node_t node);
37*7c478bd9Sstevel@tonic-gate
38*7c478bd9Sstevel@tonic-gate static devfsadm_create_t fssnap_cbt[] = {
39*7c478bd9Sstevel@tonic-gate { "pseudo", "ddi_pseudo", SNAP_NAME,
40*7c478bd9Sstevel@tonic-gate TYPE_EXACT | DRV_EXACT, ILEVEL_0, fssnap,
41*7c478bd9Sstevel@tonic-gate },
42*7c478bd9Sstevel@tonic-gate };
43*7c478bd9Sstevel@tonic-gate
44*7c478bd9Sstevel@tonic-gate DEVFSADM_CREATE_INIT_V0(fssnap_cbt);
45*7c478bd9Sstevel@tonic-gate
46*7c478bd9Sstevel@tonic-gate /*
47*7c478bd9Sstevel@tonic-gate * For the master device:
48*7c478bd9Sstevel@tonic-gate * /dev/fssnapctl -> /devices/pseudo/fssnap@0:ctl
49*7c478bd9Sstevel@tonic-gate * For each other device
50*7c478bd9Sstevel@tonic-gate * /dev/fssnap/1 -> /devices/pseudo/fssnap@0:1
51*7c478bd9Sstevel@tonic-gate * /dev/rfssnap/1 -> /devices/pseudo/fssnap@0:1,raw
52*7c478bd9Sstevel@tonic-gate */
53*7c478bd9Sstevel@tonic-gate static int
fssnap(di_minor_t minor,di_node_t node)54*7c478bd9Sstevel@tonic-gate fssnap(di_minor_t minor, di_node_t node)
55*7c478bd9Sstevel@tonic-gate {
56*7c478bd9Sstevel@tonic-gate dev_t dev;
57*7c478bd9Sstevel@tonic-gate char mn[MAXNAMELEN + 1];
58*7c478bd9Sstevel@tonic-gate char blkname[MAXNAMELEN + 1];
59*7c478bd9Sstevel@tonic-gate char rawname[MAXNAMELEN + 1];
60*7c478bd9Sstevel@tonic-gate char path[PATH_MAX + 1];
61*7c478bd9Sstevel@tonic-gate
62*7c478bd9Sstevel@tonic-gate (void) strcpy(mn, di_minor_name(minor));
63*7c478bd9Sstevel@tonic-gate
64*7c478bd9Sstevel@tonic-gate if (strcmp(mn, "ctl") == 0) {
65*7c478bd9Sstevel@tonic-gate (void) devfsadm_mklink(SNAP_CTL_NAME, node, minor, 0);
66*7c478bd9Sstevel@tonic-gate } else {
67*7c478bd9Sstevel@tonic-gate dev = di_minor_devt(minor);
68*7c478bd9Sstevel@tonic-gate (void) snprintf(blkname, sizeof (blkname), "%d",
69*7c478bd9Sstevel@tonic-gate (int)minor(dev));
70*7c478bd9Sstevel@tonic-gate (void) snprintf(rawname, sizeof (rawname), "%d,raw",
71*7c478bd9Sstevel@tonic-gate (int)minor(dev));
72*7c478bd9Sstevel@tonic-gate
73*7c478bd9Sstevel@tonic-gate if (strcmp(mn, blkname) == 0) {
74*7c478bd9Sstevel@tonic-gate (void) snprintf(path, sizeof (path), "%s/%s",
75*7c478bd9Sstevel@tonic-gate SNAP_BLOCK_NAME, blkname);
76*7c478bd9Sstevel@tonic-gate } else if (strcmp(mn, rawname) == 0) {
77*7c478bd9Sstevel@tonic-gate (void) snprintf(path, sizeof (path), "%s/%s",
78*7c478bd9Sstevel@tonic-gate SNAP_CHAR_NAME, blkname);
79*7c478bd9Sstevel@tonic-gate } else {
80*7c478bd9Sstevel@tonic-gate return (DEVFSADM_CONTINUE);
81*7c478bd9Sstevel@tonic-gate }
82*7c478bd9Sstevel@tonic-gate
83*7c478bd9Sstevel@tonic-gate (void) devfsadm_mklink(path, node, minor, 0);
84*7c478bd9Sstevel@tonic-gate }
85*7c478bd9Sstevel@tonic-gate return (DEVFSADM_CONTINUE);
86*7c478bd9Sstevel@tonic-gate }
87