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Bluetooth BR/EDR RF: header decoding according to specification 

According to the LINKTYPE_BLUETOOTH_BREDR_BB Packet Structure specification
(http://www.whiterocker.com/bt/LINKTYPE_BLUETOOTH_BREDR_BB.html), the
Bluetooth header should be formatted according to the Bluetooth
specification Volume 2, Part B, Section 6.4. However, right now
wireshark expects the header to be in a weird format,
specifically it expects the header fields to be MSB but the bits
within each header field to be LSB. (Bluetooth standard is all
LSB). Furthermore, it computes the HEC (header check, i.e. the header
CRC) with 4 bits arbitrarily masked.

This patch decodes the header according to the spec. It still accepts
the old format (if the broken HEC matches), and displays a warning.
This commit is contained in:
Thomas Sailer 2021-01-27 06:23:52 +00:00 committed by AndersBroman
parent 7664748e72
commit 76abe23f6d
3 changed files with 4204 additions and 83 deletions
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1
epan/dissectors/CMakeLists.txt
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@ -779,6 +779,7 @@ set(DISSECTOR_SRC
${CMAKE_CURRENT_SOURCE_DIR}/packet-btl2cap.c
${CMAKE_CURRENT_SOURCE_DIR}/packet-btle.c
${CMAKE_CURRENT_SOURCE_DIR}/packet-btle_rf.c
${CMAKE_CURRENT_SOURCE_DIR}/packet-btlmp.c
${CMAKE_CURRENT_SOURCE_DIR}/packet-btmesh.c
${CMAKE_CURRENT_SOURCE_DIR}/packet-btmesh-pbadv.c
${CMAKE_CURRENT_SOURCE_DIR}/packet-btmesh-provisioning.c

1817
epan/dissectors/packet-btbredr_rf.c
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2469
epan/dissectors/packet-btlmp.c Normal file
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