| /* |
| * These structs are used by the system-use-sharing protocol, in which the |
| * Rock Ridge extensions are embedded. It is quite possible that other |
| * extensions are present on the disk, and this is fine as long as they |
| * all use SUSP |
| */ |
| |
| struct SU_SP_s { |
| unsigned char magic[2]; |
| unsigned char skip; |
| } __attribute__ ((packed)); |
| |
| struct SU_CE_s { |
| char extent[8]; |
| char offset[8]; |
| char size[8]; |
| }; |
| |
| struct SU_ER_s { |
| unsigned char len_id; |
| unsigned char len_des; |
| unsigned char len_src; |
| unsigned char ext_ver; |
| char data[0]; |
| } __attribute__ ((packed)); |
| |
| struct RR_RR_s { |
| char flags[1]; |
| } __attribute__ ((packed)); |
| |
| struct RR_PX_s { |
| char mode[8]; |
| char n_links[8]; |
| char uid[8]; |
| char gid[8]; |
| }; |
| |
| struct RR_PN_s { |
| char dev_high[8]; |
| char dev_low[8]; |
| }; |
| |
| struct SL_component { |
| unsigned char flags; |
| unsigned char len; |
| char text[0]; |
| } __attribute__ ((packed)); |
| |
| struct RR_SL_s { |
| unsigned char flags; |
| struct SL_component link; |
| } __attribute__ ((packed)); |
| |
| struct RR_NM_s { |
| unsigned char flags; |
| char name[0]; |
| } __attribute__ ((packed)); |
| |
| struct RR_CL_s { |
| char location[8]; |
| }; |
| |
| struct RR_PL_s { |
| char location[8]; |
| }; |
| |
| struct stamp { |
| __u8 time[7]; /* actually 6 unsigned, 1 signed */ |
| } __attribute__ ((packed)); |
| |
| struct RR_TF_s { |
| char flags; |
| struct stamp times[0]; /* Variable number of these beasts */ |
| } __attribute__ ((packed)); |
| |
| /* Linux-specific extension for transparent decompression */ |
| struct RR_ZF_s { |
| char algorithm[2]; |
| char parms[2]; |
| char real_size[8]; |
| }; |
| |
| /* |
| * These are the bits and their meanings for flags in the TF structure. |
| */ |
| #define TF_CREATE 1 |
| #define TF_MODIFY 2 |
| #define TF_ACCESS 4 |
| #define TF_ATTRIBUTES 8 |
| #define TF_BACKUP 16 |
| #define TF_EXPIRATION 32 |
| #define TF_EFFECTIVE 64 |
| #define TF_LONG_FORM 128 |
| |
| struct rock_ridge { |
| char signature[2]; |
| unsigned char len; |
| unsigned char version; |
| union { |
| struct SU_SP_s SP; |
| struct SU_CE_s CE; |
| struct SU_ER_s ER; |
| struct RR_RR_s RR; |
| struct RR_PX_s PX; |
| struct RR_PN_s PN; |
| struct RR_SL_s SL; |
| struct RR_NM_s NM; |
| struct RR_CL_s CL; |
| struct RR_PL_s PL; |
| struct RR_TF_s TF; |
| struct RR_ZF_s ZF; |
| } u; |
| }; |
| |
| #define RR_PX 1 /* POSIX attributes */ |
| #define RR_PN 2 /* POSIX devices */ |
| #define RR_SL 4 /* Symbolic link */ |
| #define RR_NM 8 /* Alternate Name */ |
| #define RR_CL 16 /* Child link */ |
| #define RR_PL 32 /* Parent link */ |
| #define RR_RE 64 /* Relocation directory */ |
| #define RR_TF 128 /* Timestamps */ |