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 @@
+/* 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 */