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Bluetooth: Fix for GAP/SEC/SEM/BI-10-C

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Security Mode 1 level 4, force us to use have key size 16 octects long.
This patch adds check for that.

This is required for the qualification test GAP/SEC/SEM/BI-10-C

Logs from test when ATT is configured with sec level BT_SECURITY_FIPS

< ACL Data TX: Handle 3585 flags 0x00 dlen 11                                                                       #28 [hci0] 3.785965
      SMP: Pairing Request (0x01) len 6
        IO capability: DisplayYesNo (0x01)
        OOB data: Authentication data not present (0x00)
        Authentication requirement: Bonding, MITM, SC, No Keypresses (0x0d)
        Max encryption key size: 16
        Initiator key distribution: EncKey Sign (0x05)
        Responder key distribution: EncKey IdKey Sign (0x07)
> ACL Data RX: Handle 3585 flags 0x02 dlen 11                                                                       #35 [hci0] 3.883020
      SMP: Pairing Response (0x02) len 6
        IO capability: DisplayYesNo (0x01)
        OOB data: Authentication data not present (0x00)
        Authentication requirement: Bonding, MITM, SC, No Keypresses (0x0d)
        Max encryption key size: 7
        Initiator key distribution: EncKey Sign (0x05)
        Responder key distribution: EncKey IdKey Sign (0x07)
< ACL Data TX: Handle 3585 flags 0x00 dlen 6                                                                        #36 [hci0] 3.883136
      SMP: Pairing Failed (0x05) len 1
        Reason: Encryption key size (0x06)

Signed-off-by: Łukasz Rymanowski <lukasz.rymanowski@codecoup.pl>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Łukasz Rymanowski 2020-05-13 10:18:53 +02:00 • committed by Marcel Holtmann
commit 49c06c9eb1
1 changed files with 4 additions and 0 deletions
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