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- #------------------------------------------------------------------------------
- # $File: ber,v 1.2 2019/04/19 00:42:27 christos Exp $
- # ber: file(1) magic for several BER formats used in the mobile
- # telecommunications industry (Georg Sauthoff)
- # The file formats are standardized by the GSMA (GSM association).
- # They are specified via ASN.1 schemas and some prose. Basic encoding
- # rules (BER) is the used encoding. The formats are used for exchanging
- # call data records (CDRs) between mobile operators and associated
- # parties for roaming clearing purposes and fraud detection.
- # The magic file covers:
- # - TAP files (TD.57) - CDR batches and notifications
- # - RAP files (TD.32) - return batches and acknowledgements
- # - NRT files (TD.35) - CDR batches for 'near real time' processing
- #
- # TAP 3 Files
- # TAP -> Transferred Account Procedure
- # cf. https://www.gsma.com/newsroom/wp-content/uploads/TD.57-v32.31.pdf
- # TransferBatch short tag
- 0 byte 0x61
- # BatchControlInfo short tag
- >&1 search/b5 \x64
- # Sender long tag #TAP 3.x (BER encoded)
- >>&1 search/b8 \x5f\x81\x44
- # <SpecificationVersionNumber>3</><ReleaseVersionNumber> block
- >>>&64 search/b64 \x5f\x81\x49\x01\x03\x5f\x81\x3d\x01
- >>>>&0 byte x TAP 3.%d Batch (TD.57, Transferred Account)
- # Notification short tag
- 0 byte 0x62
- # Sender long tag
- >2 search/b8 \x5f\x81\x44
- # <SpecificationVersionNumber>3</><ReleaseVersionNumber> block
- >>&64 search/b64 \x5f\x81\x49\x01\x03\x5f\x81\x3d\x01
- >>>&0 byte x TAP 3.%d Notification (TD.57, Transferred Account)
- # NRT Files
- # NRT a.k.a. NRTRDE
- 0 byte 0x61
- # <SpecificationVersionNumber>2</><ReleaseVersionNumber> block
- >&1 search/b8 \x5f\x29\x01\x02\x5f\x25\x01
- >>&0 byte x NRT 2.%d (TD.35, Near Real Time Roaming Data Exchange)
- # RAP Files
- # cf. https://www.gsma.com/newsroom/wp-content/uploads/TD.32-v6.11.pdf
- # Long ReturnBatch tag
- 0 string \x7f\x84\x16
- # Long RapBatchControlInfo tag
- >&1 search/b8 \x7f\x84\x19
- # <SpecificationVersionNumber>3</><ReleaseVersionNumber> block
- >>&64 search/b64 \x5f\x81\x49\x01\x03\x5f\x81\x3d\x01
- # <RapSpecificationVersionNumber>1</><RapReleaseVersionNumber> block
- >>>&1 string/b \x5f\x84\x20\x01\x01\x5f\x84\x1f\x01
- >>>>&0 byte x RAP 1.%d Batch (TD.32, Returned Account Procedure),
- >>>&0 byte x TAP 3.%d
- # Long Acknowledgement tag
- 0 string \x7f\x84\x17
- # Long Sender tag
- >&1 search/b5 \x5f\x81\x44 RAP Acknowledgement (TD.32, Returned Account Procedure)
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