diff options
Diffstat (limited to 'fs/isofs/rock.h')
-rw-r--r-- | fs/isofs/rock.h | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/fs/isofs/rock.h b/fs/isofs/rock.h new file mode 100644 index 000000000000..deaf5c8e8b4a --- /dev/null +++ b/fs/isofs/rock.h | |||
@@ -0,0 +1,119 @@ | |||
1 | /* These structs are used by the system-use-sharing protocol, in which the | ||
2 | Rock Ridge extensions are embedded. It is quite possible that other | ||
3 | extensions are present on the disk, and this is fine as long as they | ||
4 | all use SUSP */ | ||
5 | |||
6 | struct SU_SP{ | ||
7 | unsigned char magic[2]; | ||
8 | unsigned char skip; | ||
9 | } __attribute__((packed)); | ||
10 | |||
11 | struct SU_CE{ | ||
12 | char extent[8]; | ||
13 | char offset[8]; | ||
14 | char size[8]; | ||
15 | }; | ||
16 | |||
17 | struct SU_ER{ | ||
18 | unsigned char len_id; | ||
19 | unsigned char len_des; | ||
20 | unsigned char len_src; | ||
21 | unsigned char ext_ver; | ||
22 | char data[0]; | ||
23 | } __attribute__((packed)); | ||
24 | |||
25 | struct RR_RR{ | ||
26 | char flags[1]; | ||
27 | } __attribute__((packed)); | ||
28 | |||
29 | struct RR_PX{ | ||
30 | char mode[8]; | ||
31 | char n_links[8]; | ||
32 | char uid[8]; | ||
33 | char gid[8]; | ||
34 | }; | ||
35 | |||
36 | struct RR_PN{ | ||
37 | char dev_high[8]; | ||
38 | char dev_low[8]; | ||
39 | }; | ||
40 | |||
41 | |||
42 | struct SL_component{ | ||
43 | unsigned char flags; | ||
44 | unsigned char len; | ||
45 | char text[0]; | ||
46 | } __attribute__((packed)); | ||
47 | |||
48 | struct RR_SL{ | ||
49 | unsigned char flags; | ||
50 | struct SL_component link; | ||
51 | } __attribute__((packed)); | ||
52 | |||
53 | struct RR_NM{ | ||
54 | unsigned char flags; | ||
55 | char name[0]; | ||
56 | } __attribute__((packed)); | ||
57 | |||
58 | struct RR_CL{ | ||
59 | char location[8]; | ||
60 | }; | ||
61 | |||
62 | struct RR_PL{ | ||
63 | char location[8]; | ||
64 | }; | ||
65 | |||
66 | struct stamp{ | ||
67 | char time[7]; | ||
68 | } __attribute__((packed)); | ||
69 | |||
70 | struct RR_TF{ | ||
71 | char flags; | ||
72 | struct stamp times[0]; /* Variable number of these beasts */ | ||
73 | } __attribute__((packed)); | ||
74 | |||
75 | /* Linux-specific extension for transparent decompression */ | ||
76 | struct RR_ZF{ | ||
77 | char algorithm[2]; | ||
78 | char parms[2]; | ||
79 | char real_size[8]; | ||
80 | }; | ||
81 | |||
82 | /* These are the bits and their meanings for flags in the TF structure. */ | ||
83 | #define TF_CREATE 1 | ||
84 | #define TF_MODIFY 2 | ||
85 | #define TF_ACCESS 4 | ||
86 | #define TF_ATTRIBUTES 8 | ||
87 | #define TF_BACKUP 16 | ||
88 | #define TF_EXPIRATION 32 | ||
89 | #define TF_EFFECTIVE 64 | ||
90 | #define TF_LONG_FORM 128 | ||
91 | |||
92 | struct rock_ridge{ | ||
93 | char signature[2]; | ||
94 | unsigned char len; | ||
95 | unsigned char version; | ||
96 | union{ | ||
97 | struct SU_SP SP; | ||
98 | struct SU_CE CE; | ||
99 | struct SU_ER ER; | ||
100 | struct RR_RR RR; | ||
101 | struct RR_PX PX; | ||
102 | struct RR_PN PN; | ||
103 | struct RR_SL SL; | ||
104 | struct RR_NM NM; | ||
105 | struct RR_CL CL; | ||
106 | struct RR_PL PL; | ||
107 | struct RR_TF TF; | ||
108 | struct RR_ZF ZF; | ||
109 | } u; | ||
110 | }; | ||
111 | |||
112 | #define RR_PX 1 /* POSIX attributes */ | ||
113 | #define RR_PN 2 /* POSIX devices */ | ||
114 | #define RR_SL 4 /* Symbolic link */ | ||
115 | #define RR_NM 8 /* Alternate Name */ | ||
116 | #define RR_CL 16 /* Child link */ | ||
117 | #define RR_PL 32 /* Parent link */ | ||
118 | #define RR_RE 64 /* Relocation directory */ | ||
119 | #define RR_TF 128 /* Timestamps */ | ||