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agent: Modify agent_clear_passphrase to support an ext. password cache.

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* agent/agent.h (agent_get_passphrase): Add arguments keyinfo and
cache_mode.  Update callers.
* agent/call-pinentry.c (agent_get_passphrase): Add arguments keyinfo
and cache_mode.  If KEYINFO and CACHE_MODE describe a cachable key,
then send SETKEYINFO to the pinentry.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>
This commit is contained in:
Neal H. Walfield 2015-05-19 14:58:04 +02:00
parent c771963140
commit e201c20f25
3 changed files with 27 additions and 4 deletions
Download patch file Download diff file Expand all files Collapse all files

23
agent/call-pinentry.c
View file

@ -1015,7 +1015,8 @@ agent_askpin (ctrl_t ctrl,
int
agent_get_passphrase (ctrl_t ctrl,
char **retpass, const char *desc, const char *prompt,
const char *errtext, int with_qualitybar)
const char *errtext, int with_qualitybar,
const char *keyinfo, cache_mode_t cache_mode)
{
int rc;
@ -1060,6 +1061,26 @@ agent_get_passphrase (ctrl_t ctrl,
prompt = desc && strstr (desc, "PIN")? "PIN": _("Passphrase");
/* If we have a KEYINFO string and are normal, user, or ssh cache
mode, we tell that the Pinentry so it may use it for own caching
purposes. Most pinentries won't have this implemented and thus
we do not error out in this case. */
if (keyinfo && (cache_mode == CACHE_MODE_NORMAL
|| cache_mode == CACHE_MODE_USER
|| cache_mode == CACHE_MODE_SSH))
snprintf (line, DIM(line)-1, "SETKEYINFO %c/%s",
cache_mode == CACHE_MODE_USER? 'u' :
cache_mode == CACHE_MODE_SSH? 's' : 'n',
keyinfo);
else
snprintf (line, DIM(line)-1, "SETKEYINFO --clear");
rc = assuan_transact (entry_ctx, line,
NULL, NULL, NULL, NULL, NULL, NULL);
if (rc && gpg_err_code (rc) != GPG_ERR_ASS_UNKNOWN_CMD)
return unlock_pinentry (rc);
if (desc)
snprintf (line, DIM(line)-1, "SETDESC %s", desc);
else