dirmngr: Add timestamp / RFC3161 clienttobias/tsa

* dirmngr/rfc3161.c: Add rfc3161 implementation.
* dirmngr/rfc3161.h: Add rfc3161 header.
* dirmngr/Makefile.am: Add new file to makefile.
* dirmngr/dirmngr.h: Add tsa responder url option.
* dirmngr/dirmngr.c: Add tsa responder url option.
* dirmngr/server.c: Add assuan call to request a timestamp.

1 files changed, 32 insertions, 0 deletions

diff --git a/dirmngr/rfc3161.h b/dirmngr/rfc3161.h
new file mode 100644
index 000000000..d9610110c
--- /dev/null
+++ b/dirmngr/rfc3161.h
@@ -0,0 +1,32 @@
+/* rfc3161.h - X.509 Time-Stamp protocol interface
+ * Copyright (C) 2022 g10 Code GmbH
+ *
+ * This file is part of GnuPG.
+ *
+ * GnuPG is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * GnuPG is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <https://www.gnu.org/licenses/>.
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+#ifndef GNUPG_RFC3161_H
+#define GNUPG_RFC3161_H
+
+#include <gpg-error.h>
+#include "dirmngr.h"
+
+gpg_error_t dirmngr_get_timestamp (ctrl_t ctrl, char *hashalgoid,
+                                    const void *tbshash,
+                                    unsigned int tbshashlen, ksba_cms_t *r_cms);
+
+
+#endif /*GNUPG_RFC3161_H*/