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 /*
27 * This file contains functions that implement the fdisk menu commands.
28 */
29 #include "global.h"
30 #include <sys/time.h>
31 #include <sys/resource.h>
32 #include <sys/wait.h>
33 #include <signal.h>
34 #include <string.h>
35 #include <sys/fcntl.h>
36 #include <sys/stat.h>
37
38 #include <sys/dklabel.h>
39 #include <errno.h>
40
41
42 #include "main.h"
43 #include "analyze.h"
44 #include "menu.h"
45 #include "menu_command.h"
46 #include "menu_defect.h"
47 #include "menu_partition.h"
48 #if defined(_FIRMWARE_NEEDS_FDISK)
49 #include "menu_fdisk.h"
50 #endif /* defined(_FIRMWARE_NEEDS_FDISK) */
51 #include "param.h"
52 #include "misc.h"
53 #include "label.h"
54 #include "startup.h"
55 #include "partition.h"
56 #include "prompts.h"
57 #include "checkdev.h"
58 #include "io.h"
59 #include "ctlr_scsi.h"
60 #include "auto_sense.h"
61
62 static int generic_ck_format(void);
63 static int generic_rdwr(int dir, int fd, diskaddr_t blkno, int secnt,
64 caddr_t bufaddr, int flags, int *xfercntp);
65
66 struct ctlr_ops genericops = {
67 generic_rdwr,
68 generic_ck_format,
69 0,
70 0,
71 0,
72 0,
73 0,
74 };
75
76
77 /*
78 * Check to see if the disk has been formatted.
79 * If we are able to read the first track, we conclude that
80 * the disk has been formatted.
81 */
82 static int
generic_ck_format(void)83 generic_ck_format(void)
84 {
85 int status;
86
87 /*
88 * Try to read the first four blocks.
89 */
90 status = generic_rdwr(DIR_READ, cur_file, 0, 4, (caddr_t)cur_buf,
91 F_SILENT, NULL);
92 return (!status);
93 }
94
95 /*
96 * Read or write the disk.
97 * Temporary interface until IOCTL interface finished.
98 */
99 /*ARGSUSED*/
100 static int
generic_rdwr(int dir,int fd,diskaddr_t blkno,int secnt,caddr_t bufaddr,int flags,int * xfercntp)101 generic_rdwr(int dir, int fd, diskaddr_t blkno, int secnt, caddr_t bufaddr,
102 int flags, int *xfercntp)
103 {
104
105 offset_t tmpsec, status, tmpblk;
106 int ret;
107
108 tmpsec = (offset_t)secnt * cur_blksz;
109 tmpblk = (offset_t)blkno * cur_blksz;
110
111 #if defined(_FIRMWARE_NEEDS_FDISK)
112 /* Use "p0" file to seek/read the data */
113 (void) open_cur_file(FD_USE_P0_PATH);
114 #endif
115 if (dir == DIR_READ) {
116 status = llseek(fd, tmpblk, SEEK_SET);
117 if (status != tmpblk) {
118 ret = (int)status;
119 goto out;
120 }
121
122 status = read(fd, bufaddr, (size_t)tmpsec);
123 if (status != tmpsec)
124 ret = (int)tmpsec;
125 else
126 ret = 0;
127 } else {
128 status = llseek(fd, tmpblk, SEEK_SET);
129 if (status != tmpblk) {
130 ret = (int)status;
131 goto out;
132 }
133
134 status = write(fd, bufaddr, (size_t)tmpsec);
135 if (status != tmpsec)
136 ret = (int)tmpsec;
137 else
138 ret = 0;
139 }
140 out:
141 #if defined(_FIRMWARE_NEEDS_FDISK)
142 /* Restore cur_file with cur_disk->disk_path */
143 (void) open_cur_file(FD_USE_CUR_DISK_PATH);
144 #endif
145 return (ret);
146 }
147