Added bzip2 compression to dump.

[dump.git] / compat / include / protocols / dumprestore.h

diff --git a/compat/include/protocols/dumprestore.h b/compat/include/protocols/dumprestore.h
index d3e1c55a7995d9cbca8f1d8f96de43a38f75a377..49e14f1f6bce9651fc4d02c904745804f1efa2a9 100644 (file)
--- a/compat/include/protocols/dumprestore.h
+++ b/compat/include/protocols/dumprestore.h
@@ -2,8 +2,10 @@
  *     Ported to Linux's Second Extended File System as part of the
  *     dump and restore backup suit
  *     Remy Card <card@Linux.EU.Org>, 1994-1997
- *      Stelian Pop <pop@cybercable.fr>, 1999-2000
+ *      Stelian Pop <pop@noos.fr>, 1999-2000
+ *     Stelian Pop <pop@noos.fr> - Alcôve <www.alcove.fr>, 2000
  *
+ *     $Id: dumprestore.h,v 1.14 2001/08/16 15:24:21 stelian Exp $
  */
 
 /*
@@ -42,13 +44,13 @@
  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
- *
- * $Id: dumprestore.h,v 1.6 2000/01/21 10:17:41 stelian Exp $
  */
 
 #ifndef _PROTOCOLS_DUMPRESTORE_H_
 #define _PROTOCOLS_DUMPRESTORE_H_
 
+#include <config.h>
+
 /*
  * TP_BSIZE is the size of file blocks on the dump tapes.
  * Note that TP_BSIZE must be a multiple of DEV_BSIZE.
@@ -72,6 +74,8 @@
 #define NFS_MAGIC      (int)60012
 #define CHECKSUM       (int)84446
 
+typedef u_int32_t      dump_ino_t;
+
 union u_spcl {
        char dummy[TP_BSIZE];
        struct  s_spcl {
@@ -80,7 +84,7 @@ union u_spcl {
                int32_t c_ddate;            /* date of previous dump */
                int32_t c_volume;           /* dump volume number */
                daddr_t c_tapea;            /* logical block of this record */
-               ino_t   c_inumber;          /* number of inode */
+               dump_ino_t c_inumber;       /* number of inode */
                int32_t c_magic;            /* magic number (see above) */
                int32_t c_checksum;         /* record checksum */
 #ifdef __linux__
@@ -97,7 +101,8 @@ union u_spcl {
                char    c_host[NAMELEN];    /* name of dumpped host */
                int32_t c_flags;            /* additional information */
                int32_t c_firstrec;         /* first record on volume */
-               int32_t c_spare[32];        /* reserved for future uses */
+               int32_t c_ntrec;            /* blocksize on volume */
+               int32_t c_spare[31];        /* reserved for future uses */
        } s_spcl;
 } u_spcl;
 #define spcl u_spcl.s_spcl
@@ -116,5 +121,20 @@ union u_spcl {
  */
 #define DR_NEWHEADER   0x0001  /* new format tape header */
 #define DR_NEWINODEFMT 0x0002  /* new format inodes on tape */
+#define DR_COMPRESSED  0x0080  /* dump tape is compressed */
+
+/*
+ * compression flags for the tapebuf header.
+ */
+#define COMPRESS_ZLIB  0
+#define COMPRESS_BZLIB 1
+
+/* used for compressed dump tapes */
+struct tapebuf {
+       unsigned int    compressed:1;
+       unsigned int    flags:3;
+       unsigned int    length:28;
+       char            buf[0]; /* the data */
+};
 
 #endif /* !_DUMPRESTORE_H_ */