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g10,scd: Improve UIF support.

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* g10/call-agent.c (learn_status_cb): Parse "bt" flag.
* g10/call-agent.h: New member field "bt".
* g10/card-util.c (uif): Limit its access only when it is supported.
* scd/app-openpgp.c (do_setattr): Allow access to UIF objects only
when there is a button.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
This commit is contained in:
NIIBE Yutaka 2018-10-25 16:20:20 +09:00
parent 54eb375ff1
commit 0240345728
4 changed files with 30 additions and 3 deletions
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21
g10/card-util.c
View file

@ -2114,10 +2114,31 @@ kdf_setup (const char *args)
static void
uif (int arg_number, const char *arg_rest)
{
struct agent_card_info_s info;
int feature_available;
gpg_error_t err;
char name[100];
unsigned char data[2];
memset (&info, 0, sizeof info);
err = agent_scd_getattr ("EXTCAP", &info);
if (err)
{
log_error (_("error getting card info: %s\n"), gpg_strerror (err));
return;
}
feature_available = info.extcap.bt;
agent_release_card_info (&info);
if (!feature_available)
{
log_error (_("This command is not supported by this card\n"));
tty_printf ("\n");
return;
}
snprintf (name, sizeof name, "UIF-%d", arg_number);
if ( !strcmp (arg_rest, "off") )
data[0] = 0x00;