util-lib: export cryptsetup logging glue function

src/basic/crypt-util.c

@@ -0,0 +1,27 @@
+/***
+  This file is part of systemd.
+
+  Copyright 2017 Zbigniew Jędrzejewski-Szmek
+
+  systemd is free software; you can redistribute it and/or modify it
+  under the terms of the GNU Lesser General Public License as published by
+  the Free Software Foundation; either version 2.1 of the License, or
+  (at your option) any later version.
+
+  systemd 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
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public License
+  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#if HAVE_LIBCRYPTSETUP
+#include "crypt-util.h"
+#include "log.h"
+
+void cryptsetup_log_glue(int level, const char *msg, void *usrptr) {
+        log_debug("%s", msg);
+}
+#endif

src/basic/crypt-util.h

@@ -24,4 +24,6 @@
 #include "macro.h"
 
 DEFINE_TRIVIAL_CLEANUP_FUNC(struct crypt_device *, crypt_free);
+
+void cryptsetup_log_glue(int level, const char *msg, void *usrptr);
 #endif

src/basic/meson.build

@@ -61,6 +61,7 @@ basic_sources_plain = files('''
         copy.h
         cpu-set-util.c
         cpu-set-util.h
+        crypt-util.c
         crypt-util.h
         def.h
         device-nodes.c