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Bluetooth: host: Log security keys needed by sniffer

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Log the security keys that the sniffer needs in order to sucessfully
decrypt the connection.
This option allows the sniffer to work in the cases where enabling
using the SMP debug keys is not wanted, either because it changes the
way the peer behaves or is denied by the peer.
It also enables the sniffer to decrypt a connection where the bond
already exists.

Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
This commit is contained in:
Joakim Andersson 2020-11-19 09:26:34 +01:00 • committed by Johan Hedberg
commit 200f4687e0
8 changed files with 123 additions and 7 deletions
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6
subsys/bluetooth/host/CMakeLists.txt
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@ -76,9 +76,9 @@ if(CONFIG_BT_HCI_HOST)
endif()
endif()
if(CONFIG_BT_DEBUG_SMP OR CONFIG_BT_DEBUG_KEYS)
message(WARNING "One or both these options are enabled:
CONFIG_BT_DEBUG_SMP CONFIG_BT_DEBUG_KEYS.
if(CONFIG_BT_DEBUG_SMP OR CONFIG_BT_DEBUG_KEYS OR CONFIG_BT_LOG_SNIFFER_INFO)
message(WARNING "One of these options are enabled:
CONFIG_BT_DEBUG_SMP CONFIG_BT_DEBUG_KEYS CONFIG_BT_LOG_SNIFFER_INFO.
Private security keys such as the LTK will be printed out, do not use in
production."
)