ta: pkcs11: string debug trace for ta command ids

ck_helper.c/.h provide will helper functions for IDs. This change
starts with providing a string ID for a numerical command ID.

Matching IDs a stri

ta: pkcs11: string debug trace for ta command ids

ck_helper.c/.h provide will helper functions for IDs. This change
starts with providing a string ID for a numerical command ID.

Matching IDs a strings are stored in a constant array. Macros
PKCS11_ID() ease definition of ID/string conversion arrays content.
Function id2str() finds the string for a IDs possibly skip a given
prefix, i.e. printing "ENCRYPT" instead of "PKCS11_CKFM_ENCRYPT".

TA command IDs are the first introduced ID/string conversion util.
Function id2str_ta_cmd() return string "PKCS11_CMD_..." for a known
command ID.

Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>

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ta: pkcs11: invocation command PKCS11

Introduce a first invocation command for the TA: PKCS11_CMD_PING
can be used the check TA presence and possibly retrieve TA version
information if client provid

ta: pkcs11: invocation command PKCS11

Introduce a first invocation command for the TA: PKCS11_CMD_PING
can be used the check TA presence and possibly retrieve TA version
information if client provides an output buffer.

Add helpers to trace command and parameters configuration.

Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>
Reviewed-by: Markus S. Wamser <markus.wamser@mixed-mode.de>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>

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ta: pkcs11: base for PKCS#11 services and TA API

PKCS11 TA aims at providing PKCS#11 compliant services through a
trusted application operating as a secure service provider. This
is the first step f

ta: pkcs11: base for PKCS#11 services and TA API

PKCS11 TA aims at providing PKCS#11 compliant services through a
trusted application operating as a secure service provider. This
is the first step for the PKCS#11 TA that introduces the TA skeleton
source file tree.

Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>
Reviewed-by: Markus S. Wamser <markus.wamser@mixed-mode.de>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>

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