3027 installgrub can segfault when encountering bogus data on disk
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 (c) 2010, Oracle and/or its affiliates. All rights reserved.
23 */
24
25 #ifndef _INSTALLGRUB_H
26 #define _INSTALLGRUB_H
27
28 #ifdef __cplusplus
29 extern "C" {
30 #endif
31
32 #include <sys/multiboot.h>
33 #include "./../common/bblk_einfo.h"
34
35 #define SECTOR_SIZE (512)
36
37 typedef struct _device_data {
38 char *path;
39 char *path_p0;
40 uint8_t type;
41 int part_fd;
42 int disk_fd;
43 int slice;
44 int partition;
45 uint32_t start_sector;
46 char boot_sector[SECTOR_SIZE];
47 } ig_device_t;
48
49 typedef struct _stage2_data {
50 char *buf;
51 char *file;
52 char *extra;
53 multiboot_header_t *mboot;
54 uint32_t mboot_off;
55 uint32_t file_size;
56 uint32_t extra_size;
57 uint32_t buf_size;
58 uint32_t first_sector;
59 uint32_t pcfs_first_sectors[2];
60 } ig_stage2_t;
61
62 typedef struct _ig_data {
63 char stage1_buf[SECTOR_SIZE];
64 ig_stage2_t stage2;
65 ig_device_t device;
66 } ig_data_t;
67
68 enum ig_devtype_t {
69 IG_DEV_X86BOOTPAR = 1,
70 IG_DEV_SOLVTOC
71 };
72
73 #define is_bootpar(type) (type == IG_DEV_X86BOOTPAR)
74
75 #define STAGE2_MEMADDR (0x8000) /* loading addr of stage2 */
76
77 #define STAGE1_BPB_OFFSET (0x3)
78 #define STAGE1_BPB_SIZE (0x3B)
79 #define STAGE1_BOOT_DRIVE (0x40)
80 #define STAGE1_FORCE_LBA (0x41)
81 #define STAGE1_STAGE2_ADDRESS (0x42)
82 #define STAGE1_STAGE2_SECTOR (0x44)
83 #define STAGE1_STAGE2_SEGMENT (0x48)
84
85 #define STAGE2_BLOCKLIST (SECTOR_SIZE - 0x8)
86 #define STAGE2_INSTALLPART (SECTOR_SIZE + 0x8)
87 #define STAGE2_FORCE_LBA (SECTOR_SIZE + 0x11)
88 #define STAGE2_BLKOFF (50) /* offset from start of fdisk part */
89
90 #ifdef __cplusplus
91 }
92 #endif
93
94 #endif /* _INSTALLGRUB_H */
--- EOF ---