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, Version 1.0 only
6 * (the "License"). You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22 /*
23 * Copyright 2003 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27 #include <devfsadm.h>
28 #include <stdio.h>
29 #include <stdlib.h>
30 #include <limits.h>
31 #include <string.h>
32
33 static int ieee1394_process(di_minor_t minor, di_node_t node);
34
35 static devfsadm_create_t ieee1394_cbt[] = {
36 { "ieee1394", "ddi_ctl:devctl", "hci1394",
37 TYPE_EXACT | DRV_EXACT, ILEVEL_0, ieee1394_process
38 },
39 };
40
41 static char *debug_mid = "ieee1394_mid";
42
43 DEVFSADM_CREATE_INIT_V0(ieee1394_cbt);
44
45 #define IEEE1394_LINK_RE "^1394/hba[0-9]+$"
46
47 static devfsadm_remove_t ieee1394_remove_cbt[] = {
48 { "ieee1394", IEEE1394_LINK_RE, RM_HOT | RM_POST,
49 ILEVEL_0, devfsadm_rm_all
50 },
51 };
52
53 DEVFSADM_REMOVE_INIT_V0(ieee1394_remove_cbt);
54
55 int
minor_init(void)56 minor_init(void)
57 {
58 devfsadm_print(debug_mid, "ieee1394_link: minor_init\n");
59 return (DEVFSADM_SUCCESS);
60 }
61
62 int
minor_fini(void)63 minor_fini(void)
64 {
65 devfsadm_print(debug_mid, "ieee1394_link: minor_fini\n");
66 return (DEVFSADM_SUCCESS);
67 }
68
69 /*
70 * This function is called for every ieee1394 minor node.
71 * Calls enumerate to assign a logical ieee1394 id, and then
72 * devfsadm_mklink to make the link.
73 */
74 static int
ieee1394_process(di_minor_t minor,di_node_t node)75 ieee1394_process(di_minor_t minor, di_node_t node)
76 {
77 char *buf, *devfspath;
78 char l_path[PATH_MAX], p_path[PATH_MAX];
79 devfsadm_enumerate_t re[] = {"^1394/hba([0-9]+)$", 1, MATCH_ALL};
80
81 devfspath = di_devfs_path(node);
82
83 devfsadm_print(debug_mid,
84 "ieee1394_process: path %s\n", devfspath);
85
86 (void) snprintf(p_path, sizeof (p_path), "%s:%s",
87 devfspath, di_minor_name(minor));
88 di_devfs_path_free(devfspath);
89
90 /*
91 * Build the physical path from the components. Find the logical
92 * ieee1394 HBA id, and stuff it in buf
93 */
94 if (devfsadm_enumerate_int(p_path, 0, &buf, re, 1)) {
95 devfsadm_print(debug_mid, "ieee1394_process: exit/continue\n");
96 return (DEVFSADM_CONTINUE);
97 }
98 devfsadm_print(debug_mid, "ieee1394_process: p_path=%s buf=%s\n",
99 p_path, buf);
100
101 (void) snprintf(l_path, sizeof (l_path), "1394/hba%s", buf);
102
103 free(buf);
104
105 devfsadm_print(debug_mid, "mklink %s %s\n", l_path, p_path);
106
107 (void) devfsadm_mklink(l_path, node, minor, 0);
108
109 return (DEVFSADM_CONTINUE);
110 }
111