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 #ifdef __STDC__
63 /*
64 * Local prototypes for ANSI C compilers
65 */
66 static int generic_ck_format(void);
67 static int generic_rdwr(int dir, int fd, diskaddr_t blkno, int secnt,
68 caddr_t bufaddr, int flags, int *xfercntp);
69 #else /* __STDC__ */
70
71 static int generic_ck_format();
72 static int generic_rdwr();
73
74 #endif /* __STDC__ */
75
76 struct ctlr_ops genericops = {
77 generic_rdwr,
78 generic_ck_format,
79 0,
80 0,
81 0,
82 0,
83 0,
84 };
85
86
87 /*
88 * Check to see if the disk has been formatted.
89 * If we are able to read the first track, we conclude that
90 * the disk has been formatted.
91 */
92 static int
generic_ck_format()93 generic_ck_format()
94 {
95 int status;
96
97 /*
98 * Try to read the first four blocks.
99 */
100 status = generic_rdwr(DIR_READ, cur_file, 0, 4, (caddr_t)cur_buf,
101 F_SILENT, NULL);
102 return (!status);
103 }
104
105 /*
106 * Read or write the disk.
107 * Temporary interface until IOCTL interface finished.
108 */
109 /*ARGSUSED*/
110 static int
generic_rdwr(dir,fd,blkno,secnt,bufaddr,flags,xfercntp)111 generic_rdwr(dir, fd, blkno, secnt, bufaddr, flags, xfercntp)
112 int dir;
113 int fd;
114 diskaddr_t blkno;
115 int secnt;
116 caddr_t bufaddr;
117 int flags;
118 int *xfercntp;
119 {
120
121 offset_t tmpsec, status, tmpblk;
122 int ret;
123
124 tmpsec = (offset_t)secnt * cur_blksz;
125 tmpblk = (offset_t)blkno * cur_blksz;
126
127 #if defined(_FIRMWARE_NEEDS_FDISK)
128 /* Use "p0" file to seek/read the data */
129 (void) open_cur_file(FD_USE_P0_PATH);
130 #endif
131 if (dir == DIR_READ) {
132 status = llseek(fd, tmpblk, SEEK_SET);
133 if (status != tmpblk) {
134 ret = (int)status;
135 goto out;
136 }
137
138 status = read(fd, bufaddr, (size_t)tmpsec);
139 if (status != tmpsec)
140 ret = (int)tmpsec;
141 else
142 ret = 0;
143 } else {
144 status = llseek(fd, tmpblk, SEEK_SET);
145 if (status != tmpblk) {
146 ret = (int)status;
147 goto out;
148 }
149
150 status = write(fd, bufaddr, (size_t)tmpsec);
151 if (status != tmpsec)
152 ret = (int)tmpsec;
153 else
154 ret = 0;
155 }
156 out:
157 #if defined(_FIRMWARE_NEEDS_FDISK)
158 /* Restore cur_file with cur_disk->disk_path */
159 (void) open_cur_file(FD_USE_CUR_DISK_PATH);
160 #endif
161 return (ret);
162 }
163