1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
|
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2006 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#include <devfsadm.h>
#include <strings.h>
#include <stdlib.h>
#include <limits.h>
#include <bsm/devalloc.h>
extern int system_labeled;
static int tape_process(di_minor_t minor, di_node_t node);
static devfsadm_create_t tape_cbt[] = {
{ "tape", "ddi_byte:tape", NULL,
TYPE_EXACT, ILEVEL_0, tape_process
},
};
DEVFSADM_CREATE_INIT_V0(tape_cbt);
#define TAPE_LINK_RE "^rmt/[0-9]+[cbhlmnu]*"
static devfsadm_remove_t tape_remove_cbt[] = {
{ "tape", TAPE_LINK_RE, RM_PRE, ILEVEL_0, devfsadm_rm_all
}
};
DEVFSADM_REMOVE_INIT_V0(tape_remove_cbt);
/*
* This function is called for every tape minor node.
* Calls enumerate to assign a logical tape id, and then
* devfsadm_mklink to make the link.
*/
static int
tape_process(di_minor_t minor, di_node_t node)
{
int flags = 0;
char l_path[PATH_MAX + 1];
char *buf;
char *mn;
char *devfspath;
devfsadm_enumerate_t rules[1] = {"rmt/([0-9]+)", 1, MATCH_ADDR};
mn = di_minor_name(minor);
if ((mn != NULL) && (*mn >= '0') && (*mn <= '9')) {
/*
* first character cannot be a digit as it would combine
* with the tape instance number to make an ambiguous quantity.
*/
return (DEVFSADM_CONTINUE);
}
devfspath = di_devfs_path(node);
(void) strcpy(l_path, devfspath);
(void) strcat(l_path, ":");
(void) strcat(l_path, mn);
di_devfs_path_free(devfspath);
/*
* devfsadm_enumerate finds the logical tape id from the physical path,
* omitting minor name field. The logical tape id is returned in buf.
*/
if (devfsadm_enumerate_int(l_path, 0, &buf, rules, 1)) {
return (DEVFSADM_CONTINUE);
}
(void) strcpy(l_path, "rmt/");
(void) strcat(l_path, buf);
(void) strcat(l_path, mn);
free(buf);
if (system_labeled)
flags = DA_ADD|DA_TAPE;
(void) devfsadm_mklink(l_path, node, minor, flags);
return (DEVFSADM_CONTINUE);
}
|