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[Specification] Add tape file block definition (TFLE)

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Natalia Portillo
2025-07-31 20:27:32 +01:00
parent 7695492924
commit 6be50c77da
2 changed files with 80 additions and 1 deletions
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4
docs/spec/spec.adoc
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@@ -95,3 +95,7 @@ include::structs/parent.adoc[]
<<< <<<
include::structs/dumphw.adoc[] include::structs/dumphw.adoc[]
<<<
include::structs/tape_file.adoc[]

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docs/spec/structs/tape_file.adoc Normal file
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=== Tape File Block ('TFLE')
Lists all tape files.
Tape files are separations written to media, usually digital tapes, and are marked by filemarks.
==== Structure Definition
[source,c]
#define TAPE_FILE_MAGIC 0x454C4654
/* TODO */
==== Field Descriptions
[cols="2,2,2,6",options="header"]
|===
|Type
|Size
|Name
|Description
|uint32_t
|4 bytes
|identifier
|The tape file block identifier, always `TFLE`
|uint16_t
|2 bytes
|entries
|The number of entries following this header
|uint32_t
|4 bytes
|length
|The length in bytes of the data following this header.
|uint64_t
|8 bytes
|crc64
|The CRC64-ECMA checksum of the data following this header
|===
==== Tape file entries
[source,c]
/* TODO */
==== Field Descriptions
[cols="2,2,2,6",options="header"]
|===
|Type
|Size
|Name
|Description
|uint32
|4 bytes
|file
|File number.
|uint8
|1 byte
|partition
|Partition number this file belongs to.
|uint64
|8 bytes
|firstBlock
|First block number, inclusive, of the file.
|uint64
|8 bytes
|lastBlock
|Last block number, inclusive, of the file.
|===