Jakub Kicinski 5c5d22a750 net/tls: avoid spurious decryption error with HW resync
When device loses sync mid way through a record - kernel
has to re-encrypt the part of the record which the device
already decrypted to be able to decrypt and authenticate
the record in its entirety.

The re-encryption piggy backs on the decryption routine,
but obviously because the partially decrypted record can't
be authenticated crypto API returns an error which is then
ignored by tls_device_reencrypt().

Commit 5c5ec66858 ("net/tls: add TlsDecryptError stat")
added a statistic to count decryption errors, this statistic
can't be incremented when we see the expected re-encryption
error. Move the inc to the caller.

Reported-and-tested-by: David Beckett <david.beckett@netronome.com>
Fixes: 5c5ec66858 ("net/tls: add TlsDecryptError stat")
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-01-10 11:18:15 -08:00
2020-01-02 16:15:33 -08:00
2019-12-09 10:36:44 -08:00
2019-10-29 04:43:29 -06:00
2020-01-05 14:23:27 -08:00

Linux kernel
============

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Please read the Documentation/process/changes.rst file, as it contains the
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