- /* 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{
- unsigned char magic[2];
- unsigned char skip;
- } __attribute__((packed));
- struct SU_CE{
- char extent[8];
- char offset[8];
- char size[8];
- };
- struct SU_ER{
- unsigned char len_id;
- unsigned char len_des;
- unsigned char len_src;
- unsigned char ext_ver;
- char data[0];
- } __attribute__((packed));
- struct RR_RR{
- char flags[1];
- } __attribute__((packed));
- struct RR_PX{
- char mode[8];
- char n_links[8];
- char uid[8];
- char gid[8];
- };
- struct RR_PN{
- 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{
- unsigned char flags;
- struct SL_component link;
- } __attribute__((packed));
- struct RR_NM{
- unsigned char flags;
- char name[0];
- } __attribute__((packed));
- struct RR_CL{
- char location[8];
- };
- struct RR_PL{
- char location[8];
- };
- struct stamp{
- char time[7];
- } __attribute__((packed));
- struct RR_TF{
- char flags;
- struct stamp times[0]; /* Variable number of these beasts */
- } __attribute__((packed));
- /* Linux-specific extension for transparent decompression */
- struct RR_ZF{
- 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 SP;
- struct SU_CE CE;
- struct SU_ER ER;
- struct RR_RR RR;
- struct RR_PX PX;
- struct RR_PN PN;
- struct RR_SL SL;
- struct RR_NM NM;
- struct RR_CL CL;
- struct RR_PL PL;
- struct RR_TF TF;
- struct RR_ZF 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 */