cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

rock.h (2333B)

      1/* SPDX-License-Identifier: GPL-2.0 */
      2/*
      3 * These structs are used by the system-use-sharing protocol, in which the
      4 * Rock Ridge extensions are embedded.  It is quite possible that other
      5 * extensions are present on the disk, and this is fine as long as they
      6 * all use SUSP
      7 */
      8
      9struct SU_SP_s {
     10	__u8 magic[2];
     11	__u8 skip;
     12} __attribute__ ((packed));
     13
     14struct SU_CE_s {
     15	__u8 extent[8];
     16	__u8 offset[8];
     17	__u8 size[8];
     18};
     19
     20struct SU_ER_s {
     21	__u8 len_id;
     22	__u8 len_des;
     23	__u8 len_src;
     24	__u8 ext_ver;
     25	__u8 data[];
     26} __attribute__ ((packed));
     27
     28struct RR_RR_s {
     29	__u8 flags[1];
     30} __attribute__ ((packed));
     31
     32struct RR_PX_s {
     33	__u8 mode[8];
     34	__u8 n_links[8];
     35	__u8 uid[8];
     36	__u8 gid[8];
     37};
     38
     39struct RR_PN_s {
     40	__u8 dev_high[8];
     41	__u8 dev_low[8];
     42};
     43
     44struct SL_component {
     45	__u8 flags;
     46	__u8 len;
     47	__u8 text[];
     48} __attribute__ ((packed));
     49
     50struct RR_SL_s {
     51	__u8 flags;
     52	struct SL_component link;
     53} __attribute__ ((packed));
     54
     55struct RR_NM_s {
     56	__u8 flags;
     57	char name[];
     58} __attribute__ ((packed));
     59
     60struct RR_CL_s {
     61	__u8 location[8];
     62};
     63
     64struct RR_PL_s {
     65	__u8 location[8];
     66};
     67
     68struct stamp {
     69	__u8 time[7];		/* actually 6 unsigned, 1 signed */
     70} __attribute__ ((packed));
     71
     72struct RR_TF_s {
     73	__u8 flags;
     74	struct stamp times[];	/* Variable number of these beasts */
     75} __attribute__ ((packed));
     76
     77/* Linux-specific extension for transparent decompression */
     78struct RR_ZF_s {
     79	__u8 algorithm[2];
     80	__u8 parms[2];
     81	__u8 real_size[8];
     82};
     83
     84/*
     85 * These are the bits and their meanings for flags in the TF structure.
     86 */
     87#define TF_CREATE 1
     88#define TF_MODIFY 2
     89#define TF_ACCESS 4
     90#define TF_ATTRIBUTES 8
     91#define TF_BACKUP 16
     92#define TF_EXPIRATION 32
     93#define TF_EFFECTIVE 64
     94#define TF_LONG_FORM 128
     95
     96struct rock_ridge {
     97	__u8 signature[2];
     98	__u8 len;
     99	__u8 version;
    100	union {
    101		struct SU_SP_s SP;
    102		struct SU_CE_s CE;
    103		struct SU_ER_s ER;
    104		struct RR_RR_s RR;
    105		struct RR_PX_s PX;
    106		struct RR_PN_s PN;
    107		struct RR_SL_s SL;
    108		struct RR_NM_s NM;
    109		struct RR_CL_s CL;
    110		struct RR_PL_s PL;
    111		struct RR_TF_s TF;
    112		struct RR_ZF_s ZF;
    113	} u;
    114};
    115
    116#define RR_PX 1			/* POSIX attributes */
    117#define RR_PN 2			/* POSIX devices */
    118#define RR_SL 4			/* Symbolic link */
    119#define RR_NM 8			/* Alternate Name */
    120#define RR_CL 16		/* Child link */
    121#define RR_PL 32		/* Parent link */
    122#define RR_RE 64		/* Relocation directory */
    123#define RR_TF 128		/* Timestamps */