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| -rw-r--r-- | magic/Magdir/ber | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/magic/Magdir/ber b/magic/Magdir/ber new file mode 100644 index 0000000..15288c6 --- /dev/null +++ b/magic/Magdir/ber @@ -0,0 +1,65 @@ + +#------------------------------------------------------------------------------ +# $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) |