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agent: New GETINFO sub-command jent_active.

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* agent/command.c (cmd_getinfo): Implement it for gcrypt >= 1.8.
--

For the de-vs compliance of gpg we need to check whether the Jitter
RNG is used on Windows.  This change allows to test this for
gpg-agent.

Signed-off-by: Werner Koch <wk@gnupg.org>
This commit is contained in:
Werner Koch 2017-07-17 14:08:00 +02:00
parent 849467870e
commit bbbd0db34b
No known key found for this signature in database
GPG Key ID: E3FDFF218E45B72B
1 changed files with 19 additions and 0 deletions
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19
agent/command.c
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@ -2852,6 +2852,7 @@ static const char hlp_getinfo[] =
" cmd_has_option\n"
" - Returns OK if the command CMD implements the option OPT.\n"
" connections - Return number of active connections.\n"
" jent_active - Returns OK if Libgcrypt's JENT is active.\n"
" restricted - Returns OK if the connection is in restricted mode.\n";
static gpg_error_t
cmd_getinfo (assuan_context_t ctx, char *line)
@ -2992,6 +2993,24 @@ cmd_getinfo (assuan_context_t ctx, char *line)
get_agent_active_connection_count ());
rc = assuan_send_data (ctx, numbuf, strlen (numbuf));
}
else if (!strcmp (line, "jent_active"))
{
#if GCRYPT_VERSION_NUMBER >= 0x010800
char *buf;
char *fields[5];
buf = gcry_get_config (0, "rng-type");
if (buf
&& split_fields_colon (buf, fields, DIM (fields)) >= 5
&& atoi (fields[4]) > 0)
rc = 0;
else
rc = gpg_error (GPG_ERR_FALSE);
gcry_free (buf);
#else
rc = gpg_error (GPG_ERR_FALSE);
#endif
}
else
rc = set_error (GPG_ERR_ASS_PARAMETER, "unknown value for WHAT");
return rc;