/src/util-linux/include/pt-sun.h
Line | Count | Source (jump to first uncovered line) |
1 | | /* |
2 | | * No copyright is claimed. This code is in the public domain; do with |
3 | | * it what you wish. |
4 | | */ |
5 | | #ifndef UTIL_LINUX_PT_SUN_H |
6 | | #define UTIL_LINUX_PT_SUN_H |
7 | | |
8 | | #include <stdint.h> |
9 | | |
10 | | #define SUN_LABEL_MAGIC 0xDABE |
11 | | |
12 | | /* Supported VTOC setting */ |
13 | 0 | #define SUN_VTOC_SANITY 0x600DDEEE /* magic number */ |
14 | 0 | #define SUN_VTOC_VERSION 1 |
15 | 0 | #define SUN_MAXPARTITIONS 8 |
16 | | |
17 | | struct sun_disklabel { |
18 | | unsigned char label_id[128]; /* Informative text string */ |
19 | | |
20 | | struct sun_vtoc { |
21 | | uint32_t version; /* version */ |
22 | | char volume_id[8];/* volume name */ |
23 | | uint16_t nparts; /* num of partitions */ |
24 | | |
25 | | struct sun_info { /* partition information */ |
26 | | uint16_t id; /* SUN_TAG_* */ |
27 | | uint16_t flags; /* SUN_FLAG_* */ |
28 | | } __attribute__ ((packed)) infos[8]; |
29 | | |
30 | | uint16_t padding; /* padding */ |
31 | | uint32_t bootinfo[3]; /* info needed by mboot */ |
32 | | uint32_t sanity; /* magic number */ |
33 | | uint32_t reserved[10]; /* padding */ |
34 | | uint32_t timestamp[8]; /* partition timestamp */ |
35 | | } __attribute__ ((packed)) vtoc; |
36 | | |
37 | | uint32_t write_reinstruct; /* sectors to skip, writes */ |
38 | | uint32_t read_reinstruct; /* sectors to skip, reads */ |
39 | | unsigned char spare[148]; /* padding */ |
40 | | uint16_t rpm; /* disk rotational speed */ |
41 | | uint16_t pcyl; /* physical cylinder count */ |
42 | | uint16_t apc; /* extra sects per cylinder */ |
43 | | uint16_t obs1; |
44 | | uint16_t obs2; |
45 | | uint16_t intrlv; /* interleave factor */ |
46 | | uint16_t ncyl; /* data cylinder count */ |
47 | | uint16_t acyl; /* alt. cylinder count */ |
48 | | uint16_t nhead; /* tracks per cylinder <---- */ |
49 | | uint16_t nsect; /* sectors per track <---- */ |
50 | | uint16_t obs3; |
51 | | uint16_t obs4; |
52 | | |
53 | | struct sun_partition { /* partitions */ |
54 | | uint32_t start_cylinder; |
55 | | uint32_t num_sectors; |
56 | | } __attribute__ ((packed)) partitions[8]; |
57 | | |
58 | | uint16_t magic; /* magic number */ |
59 | | uint16_t csum; /* label xor'd checksum */ |
60 | | } __attribute__ ((packed)); |
61 | | |
62 | | |
63 | | #define SUN_TAG_UNASSIGNED 0x00 /* Unassigned partition */ |
64 | | #define SUN_TAG_BOOT 0x01 /* Boot partition */ |
65 | | #define SUN_TAG_ROOT 0x02 /* Root filesystem */ |
66 | | #define SUN_TAG_SWAP 0x03 /* Swap partition */ |
67 | | #define SUN_TAG_USR 0x04 /* /usr filesystem */ |
68 | 0 | #define SUN_TAG_WHOLEDISK 0x05 /* Full-disk slice */ |
69 | | #define SUN_TAG_STAND 0x06 /* Stand partition */ |
70 | | #define SUN_TAG_VAR 0x07 /* /var filesystem */ |
71 | | #define SUN_TAG_HOME 0x08 /* /home filesystem */ |
72 | | #define SUN_TAG_ALTSCTR 0x09 /* Alt sector partition */ |
73 | | #define SUN_TAG_CACHE 0x0a /* Cachefs partition */ |
74 | | #define SUN_TAG_RESERVED 0x0b /* SMI reserved data */ |
75 | | #define SUN_TAG_LINUX_SWAP 0x82 /* Linux SWAP */ |
76 | | #define SUN_TAG_LINUX_NATIVE 0x83 /* Linux filesystem */ |
77 | | #define SUN_TAG_LINUX_LVM 0x8e /* Linux LVM */ |
78 | | #define SUN_TAG_LINUX_RAID 0xfd /* Linux RAID */ |
79 | | |
80 | | #define SUN_FLAG_UNMNT 0x01 /* Unmountable partition*/ |
81 | | #define SUN_FLAG_RONLY 0x10 /* Read only */ |
82 | | |
83 | | static inline uint16_t sun_pt_checksum(const struct sun_disklabel *label) |
84 | 346 | { |
85 | 346 | const uint16_t *ptr = ((const uint16_t *) (label + 1)) - 1; |
86 | 346 | uint16_t sum; |
87 | | |
88 | 88.9k | for (sum = 0; ptr >= ((const uint16_t *) label);) |
89 | 88.5k | sum ^= *ptr--; |
90 | | |
91 | 346 | return sum; |
92 | 346 | } |
93 | | |
94 | | #endif /* UTIL_LINUX_PT_SUN_H */ |