*
*/
/*
- Copyright (C) 2000, 2001, 2002 Kern Sibbald and John Walker
+ Copyright (C) 2000-2003 Kern Sibbald and John Walker
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
#ifndef __BLOCK_H
#define __BLOCK_H 1
-#define MAX_BLOCK_LENGTH 500001 /* this is a sort of sanity check */
-#define DEFAULT_BLOCK_SIZE (512 * 126) /* 64,512 N.B. do not use 65,636 here */
+#define MAX_BLOCK_LENGTH 500001 /* this is a sort of sanity check */
+#define DEFAULT_BLOCK_SIZE (512 * 126) /* 64,512 N.B. do not use 65,636 here */
/* Block Header definitions. */
-#define BLKHDR_ID "BB01"
+#define BLKHDR1_ID "BB01"
+#define BLKHDR2_ID "BB02"
#define BLKHDR_ID_LENGTH 4
-#define BLKHDR_CS_LENGTH 4 /* checksum length */
-#define BLKHDR_LENGTH 16 /* Total length */
+#define BLKHDR_CS_LENGTH 4 /* checksum length */
+#define BLKHDR1_LENGTH 16 /* Total length */
+#define BLKHDR2_LENGTH 24 /* Total length */
+
+#define WRITE_BLKHDR_ID BLKHDR2_ID
+#define WRITE_BLKHDR_LENGTH BLKHDR2_LENGTH
+#define BLOCK_VER 2
+
+/* Record header definitions */
+#define RECHDR1_LENGTH 20
+#define RECHDR2_LENGTH 12
+#define WRITE_RECHDR_LENGTH RECHDR2_LENGTH
+
+/* Tape label and version definitions */
+#define BaculaId "Bacula 1.0 immortal\n"
+#define OldBaculaId "Bacula 0.9 mortal\n"
+#define BaculaTapeVersion 11
+#define OldCompatibleBaculaTapeVersion1 10
+#define OldCompatibleBaculaTapeVersion2 9
+
/*
* This is the Media structure for a block header
* Note, when written, it is serialized.
- */
-typedef struct s_block_hdr {
+
uint32_t CheckSum;
- uint32_t block_size;
+ uint32_t block_len;
uint32_t BlockNumber;
- char Id[BLKHDR_ID_LENGTH+1];
-} BLOCK_HDR;
+ char Id[BLKHDR_ID_LENGTH];
+
+ * for BB02 block, we also have
+
+ uint32_t VolSessionId;
+ uint32_t VolSessionTime;
+ */
/*
* DEV_BLOCK for reading and writing blocks.
* This is the memory structure for a device block.
*/
typedef struct s_dev_block {
- struct s_dev_block *next; /* pointer to next one */
+ struct s_dev_block *next; /* pointer to next one */
+ void *dev; /* pointer to device (DEVICE not defined yet) */
/* binbuf is the number of bytes remaining
* in the buffer. For writes, it is bytes not yet written.
* For reads, it is remaining bytes not yet read.
*/
- uint32_t binbuf; /* bytes in buffer */
- uint32_t block_len; /* length of current block read */
- uint32_t buf_len; /* max/default block length */
- uint32_t BlockNumber; /* sequential block number */
- uint32_t read_len; /* bytes read into buffer */
- int failed_write; /* set if write failed */
- char *bufp; /* pointer into buffer */
- char *buf; /* actual data buffer. This is a
- * Pool buffer!
- */
+ uint32_t binbuf; /* bytes in buffer */
+ uint32_t block_len; /* length of current block read */
+ uint32_t buf_len; /* max/default block length */
+ uint32_t BlockNumber; /* sequential block number */
+ uint32_t read_len; /* bytes read into buffer, if zero, block empty */
+ uint32_t VolSessionId; /* */
+ uint32_t VolSessionTime; /* */
+ int BlockVer; /* block version 1 or 2 */
+ int failed_write; /* set if write failed */
+ char *bufp; /* pointer into buffer */
+ POOLMEM *buf; /* actual data buffer. This is a
+ * Pool buffer!
+ */
} DEV_BLOCK;
+#define block_is_empty(block) !((block)->read_len)
+
#endif