s390/pkey: Introduce new API for transforming key blobs

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Introduce a new ioctl API and in-kernel API to transform
a variable length key blob of any supported type into a
protected key.

Transforming a secure key blob uses the already existing
function pkey_sec2protk().
Transforming a protected key blob also verifies if the
protected key is still valid. If not, -ENODEV is returned.

Both APIs are described in detail in the header files
arch/s390/include/asm/pkey.h and arch/s390/include/uapi/asm/pkey.h.

Signed-off-by: Ingo Franzki <ifranzki@linux.ibm.com>
Reviewed-by: Harald Freudenberger <freude@linux.ibm.com>
Reviewed-by: Hendrik Brueckner <brueckner@linux.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

...

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Ingo Franzki 2018-08-24 11:29:15 +02:00 • committed by Martin Schwidefsky

parent cb26b9ff71

commit fb1136d658

3 changed files with 135 additions and 0 deletions

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10

arch/s390/include/asm/pkey.h

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15

arch/s390/include/uapi/asm/pkey.h

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110

drivers/s390/crypto/pkey_api.c

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