SHA256 (Base64)

SHA256 (Base64)#

Checker name#

SHA256 checksum check (base64)

Description#

Calculates the SHA256 checksum of a restored file and supports comparison with either a configured checksum value or the checksum stored in the Bacula Catalog.

This checker is useful for Catalog comparison because Bacula stores file checksums in Base64 form.

Attribute#

SHA256 checksum (Base64)

Selecting this attribute in Verification Rules causes Bacularis to execute the SHA256ChecksumBase64Check checker.

Supported operators#

  • == - equal to

  • != - not equal to

  • C== - equal to the value stored in the Bacula Catalog

C== is the user-facing Catalog comparison operator. Its internal checker identifier is Equal Catalog Value.

Expected value#

For manual comparisons, provide the expected SHA256 checksum in Base64 format.

When C== is used, the expected checksum is read automatically from the Bacula Catalog. The Catalog-compatible value is compared in Base64 form without trailing = padding.

Capabilities#

This checker requires a Restore Destination with the File restore checks capability enabled.

Requirements#

No additional requirements.

Examples#

Compare a restored file with a manually supplied checksum:

/srv/data/example.bin  SHA256 checksum (Base64)  ==  <Base64 checksum>

Compare the restored file with the checksum stored in the Bacula Catalog:

/srv/data/example.bin  SHA256 checksum (Base64)  C==  Catalog value

Notes and limitations#

The selected path must exist and be readable. If the file does not exist, the check fails.

Catalog comparison requires a corresponding checksum to be available in the Bacula Catalog for the selected backup.

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