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Code Activity

scd: First changes to implement a PIN cache.

Browse source 
* scd/command.c (pincache_put): New.  Uses a dummy key for now.
(pincache_get): New.
* scd/app.c (select_application): Flush the PIN cache.
(scd_update_reader_status_file): Ditto.
(maybe_switch_app): Call the new prep_reselect function.
(app_write_learn_status): Ditto.
* scd/app-openpgp.c (cache_pin): New helper to cache a PIN.
(verify_chv2): Call it.
(verify_chv3): Call it.
(clear_chv_status): Call it.
(do_change_pin): Call it.

* scd/app-common.h (struct app_ctx_s): Add function 'prep_select'.
* scd/app-openpgp.c (do_prep_reselect): New stub function.
(app_select_openpgp): Set new stub function.
* scd/app-piv.c (do_prep_reselect): New stub function.
(app_select_piv): Set new stub function.

* scd/app-common.h (struct app_ctx_s): Add parameter ctrl to setattr,
sign, auth, decipher, and check_pin.  Change all implementations and
callers to pass such a parameter.
--

This is work in progress.

Signed-off-by: Werner Koch <wk@gnupg.org>
This commit is contained in:
Werner Koch 2020-01-07 18:45:33 +01:00
parent d5c00354bb
commit fbf97a7856
No known key found for this signature in database
GPG key ID: E3FDFF218E45B72B
11 changed files with 418 additions and 85 deletions
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11
scd/app-common.h
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@ -136,6 +136,7 @@ struct app_ctx_s {
struct app_local_s *app_local; /* Local to the application. */
struct {
void (*deinit) (app_t app);
gpg_error_t (*prep_reselect) (app_t app, ctrl_t ctrl);
gpg_error_t (*reselect) (app_t app, ctrl_t ctrl);
gpg_error_t (*learn_status) (app_t app, ctrl_t ctrl, unsigned int flags);
gpg_error_t (*readcert) (app_t app, const char *certid,
@ -144,22 +145,22 @@ struct app_ctx_s {
const char *certid, unsigned int flags,
unsigned char **pk, size_t *pklen);
gpg_error_t (*getattr) (app_t app, ctrl_t ctrl, const char *name);
gpg_error_t (*setattr) (app_t app, const char *name,
gpg_error_t (*setattr) (app_t app, ctrl_t ctrl, const char *name,
gpg_error_t (*pincb)(void*, const char *, char **),
void *pincb_arg,
const unsigned char *value, size_t valuelen);
gpg_error_t (*sign) (app_t app,
gpg_error_t (*sign) (app_t app, ctrl_t ctrl,
const char *keyidstr, int hashalgo,
gpg_error_t (*pincb)(void*, const char *, char **),
void *pincb_arg,
const void *indata, size_t indatalen,
unsigned char **outdata, size_t *outdatalen );
gpg_error_t (*auth) (app_t app, const char *keyidstr,
gpg_error_t (*auth) (app_t app, ctrl_t ctrl, const char *keyidstr,
gpg_error_t (*pincb)(void*, const char *, char **),
void *pincb_arg,
const void *indata, size_t indatalen,
unsigned char **outdata, size_t *outdatalen);
gpg_error_t (*decipher) (app_t app, const char *keyidstr,
gpg_error_t (*decipher) (app_t app, ctrl_t ctrl, const char *keyidstr,
gpg_error_t (*pincb)(void*, const char *, char **),
void *pincb_arg,
const void *indata, size_t indatalen,
@ -184,7 +185,7 @@ struct app_ctx_s {
const char *chvnostr, unsigned int flags,
gpg_error_t (*pincb)(void*, const char *, char **),
void *pincb_arg);
gpg_error_t (*check_pin) (app_t app, const char *keyidstr,
gpg_error_t (*check_pin) (app_t app, ctrl_t ctrl, const char *keyidstr,
gpg_error_t (*pincb)(void*, const char *, char **),
void *pincb_arg);
gpg_error_t (*with_keygrip) (app_t app, ctrl_t ctrl, int action,