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scd:p15: New flag APP_LEARN_FLAG_REREAD.

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* scd/app-p15.c (do_deinit): Factor code out to ...
(release_lists, release_tokeninfo): new.
(read_ef_tokeninfo): Reset all data before reading.
(read_p15_info): Ditto.
(do_learn_status): Implement reread flag.
--

Objects of a card may be protected by a PIN and thus only readble
after a verify command.  This new flag makes it possible to gather the
entire PKCS#15 card info again without a need for a reset (and thus
loss of the verify status).

Signed-off-by: Werner Koch <wk@gnupg.org>
This commit is contained in:
Werner Koch 2021-04-01 10:28:07 +02:00
parent 1c16878efd
commit e17d3f8660
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2 changed files with 72 additions and 26 deletions
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scd/app-common.h
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@ -45,6 +45,7 @@
/* Flags used by the app_write_learn_status. */
#define APP_LEARN_FLAG_KEYPAIRINFO 1 /* Return only keypair infos. */
#define APP_LEARN_FLAG_MULTI 2 /* Return info for all apps. */
#define APP_LEARN_FLAG_REREAD 4 /* Re-read ifnos from the token. */
/* List of supported card types. Generic is the usual ISO7817-4