diff options
Diffstat (limited to 'agent/call-scd.c')
| -rw-r--r-- | agent/call-scd.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/agent/call-scd.c b/agent/call-scd.c index 1ffb1239e..74f94c0f6 100644 --- a/agent/call-scd.c +++ b/agent/call-scd.c @@ -92,6 +92,7 @@ struct inq_needpin_s void *getpin_cb_arg; assuan_context_t passthru; /* If not NULL, pass unknown inquiries up to the caller. */ + int any_inq_seen; }; @@ -726,6 +727,7 @@ inq_needpin (void *opaque, const char *line) size_t pinlen; int rc; + parm->any_inq_seen = 1; if (!strncmp (line, "NEEDPIN", 7) && (line[7] == ' ' || !line[7])) { line += 7; @@ -857,6 +859,7 @@ agent_card_pksign (ctrl_t ctrl, inqparm.getpin_cb = getpin_cb; inqparm.getpin_cb_arg = getpin_cb_arg; inqparm.passthru = 0; + inqparm.any_inq_seen = 0; if (ctrl->use_auth_call) snprintf (line, sizeof line, "PKAUTH %s", keyid); else @@ -935,6 +938,7 @@ agent_card_pkdecrypt (ctrl_t ctrl, inqparm.getpin_cb = getpin_cb; inqparm.getpin_cb_arg = getpin_cb_arg; inqparm.passthru = 0; + inqparm.any_inq_seen = 0; snprintf (line, DIM(line)-1, "PKDECRYPT %s", keyid); line[DIM(line)-1] = 0; rc = assuan_transact (ctrl->scd_local->ctx, line, @@ -1169,14 +1173,20 @@ agent_card_scd (ctrl_t ctrl, const char *cmdline, inqparm.getpin_cb = getpin_cb; inqparm.getpin_cb_arg = getpin_cb_arg; inqparm.passthru = assuan_context; + inqparm.any_inq_seen = 0; saveflag = assuan_get_flag (ctrl->scd_local->ctx, ASSUAN_CONVEY_COMMENTS); assuan_set_flag (ctrl->scd_local->ctx, ASSUAN_CONVEY_COMMENTS, 1); rc = assuan_transact (ctrl->scd_local->ctx, cmdline, pass_data_thru, assuan_context, inq_needpin, &inqparm, pass_status_thru, assuan_context); - if (gpg_err_code(rc) == GPG_ERR_ASS_CANCELED) + if (inqparm.any_inq_seen && gpg_err_code(rc) == GPG_ERR_ASS_CANCELED) { + /* The inquire callback was called and transact returned a + cancel error. We assume that the inquired process sent a + CANCEL. The passthrough code is not able to pass on the + CANCEL and thus scdaemon would stuck on this. As a + workaround we send a CANCEL now. */ rc = assuan_write_line(ctrl->scd_local->ctx, "CAN"); if (!rc) { char *line; |