1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate * CDDL HEADER START
3*0Sstevel@tonic-gate *
4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance
7*0Sstevel@tonic-gate * with the License.
8*0Sstevel@tonic-gate *
9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate * and limitations under the License.
13*0Sstevel@tonic-gate *
14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate *
20*0Sstevel@tonic-gate * CDDL HEADER END
21*0Sstevel@tonic-gate */
22*0Sstevel@tonic-gate /*
23*0Sstevel@tonic-gate * Copyright (c) 2000-2001 by Sun Microsystems, Inc.
24*0Sstevel@tonic-gate * All rights reserved.
25*0Sstevel@tonic-gate */
26*0Sstevel@tonic-gate
27*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI"
28*0Sstevel@tonic-gate
29*0Sstevel@tonic-gate #include <regex.h>
30*0Sstevel@tonic-gate #include <devfsadm.h>
31*0Sstevel@tonic-gate #include <stdio.h>
32*0Sstevel@tonic-gate #include <strings.h>
33*0Sstevel@tonic-gate #include <stdlib.h>
34*0Sstevel@tonic-gate #include <limits.h>
35*0Sstevel@tonic-gate #include <sys/fssnap_if.h>
36*0Sstevel@tonic-gate
37*0Sstevel@tonic-gate
38*0Sstevel@tonic-gate static int fssnap(di_minor_t minor, di_node_t node);
39*0Sstevel@tonic-gate
40*0Sstevel@tonic-gate static devfsadm_create_t fssnap_cbt[] = {
41*0Sstevel@tonic-gate { "pseudo", "ddi_pseudo", SNAP_NAME,
42*0Sstevel@tonic-gate TYPE_EXACT | DRV_EXACT, ILEVEL_0, fssnap,
43*0Sstevel@tonic-gate },
44*0Sstevel@tonic-gate };
45*0Sstevel@tonic-gate
46*0Sstevel@tonic-gate DEVFSADM_CREATE_INIT_V0(fssnap_cbt);
47*0Sstevel@tonic-gate
48*0Sstevel@tonic-gate /*
49*0Sstevel@tonic-gate * For the master device:
50*0Sstevel@tonic-gate * /dev/fssnapctl -> /devices/pseudo/fssnap@0:ctl
51*0Sstevel@tonic-gate * For each other device
52*0Sstevel@tonic-gate * /dev/fssnap/1 -> /devices/pseudo/fssnap@0:1
53*0Sstevel@tonic-gate * /dev/rfssnap/1 -> /devices/pseudo/fssnap@0:1,raw
54*0Sstevel@tonic-gate */
55*0Sstevel@tonic-gate static int
fssnap(di_minor_t minor,di_node_t node)56*0Sstevel@tonic-gate fssnap(di_minor_t minor, di_node_t node)
57*0Sstevel@tonic-gate {
58*0Sstevel@tonic-gate dev_t dev;
59*0Sstevel@tonic-gate char mn[MAXNAMELEN + 1];
60*0Sstevel@tonic-gate char blkname[MAXNAMELEN + 1];
61*0Sstevel@tonic-gate char rawname[MAXNAMELEN + 1];
62*0Sstevel@tonic-gate char path[PATH_MAX + 1];
63*0Sstevel@tonic-gate
64*0Sstevel@tonic-gate (void) strcpy(mn, di_minor_name(minor));
65*0Sstevel@tonic-gate
66*0Sstevel@tonic-gate if (strcmp(mn, "ctl") == 0) {
67*0Sstevel@tonic-gate (void) devfsadm_mklink(SNAP_CTL_NAME, node, minor, 0);
68*0Sstevel@tonic-gate } else {
69*0Sstevel@tonic-gate dev = di_minor_devt(minor);
70*0Sstevel@tonic-gate (void) snprintf(blkname, sizeof (blkname), "%d",
71*0Sstevel@tonic-gate (int)minor(dev));
72*0Sstevel@tonic-gate (void) snprintf(rawname, sizeof (rawname), "%d,raw",
73*0Sstevel@tonic-gate (int)minor(dev));
74*0Sstevel@tonic-gate
75*0Sstevel@tonic-gate if (strcmp(mn, blkname) == 0) {
76*0Sstevel@tonic-gate (void) snprintf(path, sizeof (path), "%s/%s",
77*0Sstevel@tonic-gate SNAP_BLOCK_NAME, blkname);
78*0Sstevel@tonic-gate } else if (strcmp(mn, rawname) == 0) {
79*0Sstevel@tonic-gate (void) snprintf(path, sizeof (path), "%s/%s",
80*0Sstevel@tonic-gate SNAP_CHAR_NAME, blkname);
81*0Sstevel@tonic-gate } else {
82*0Sstevel@tonic-gate return (DEVFSADM_CONTINUE);
83*0Sstevel@tonic-gate }
84*0Sstevel@tonic-gate
85*0Sstevel@tonic-gate (void) devfsadm_mklink(path, node, minor, 0);
86*0Sstevel@tonic-gate }
87*0Sstevel@tonic-gate return (DEVFSADM_CONTINUE);
88*0Sstevel@tonic-gate }
89