1 files changed, 91 insertions, 0 deletions
diff --git a/src/grp-system/libcore/src/load-dropin.c b/src/grp-system/libcore/src/load-dropin.c
new file mode 100644
index 0000000000..4374a1fc25
--- /dev/null
+++ b/src/grp-system/libcore/src/load-dropin.c
@@ -0,0 +1,91 @@
+/***
+  This file is part of systemd.
+
+  Copyright 2010 Lennart Poettering
+
+  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/>.
+***/
+
+
+#include "core/load-fragment.h"
+#include "core/unit.h"
+#include "systemd-basic/log.h"
+#include "systemd-basic/strv.h"
+#include "systemd-basic/unit-name.h"
+#include "systemd-shared/conf-parser.h"
+
+#include "load-dropin.h"
+
+static int add_dependency_consumer(
+                UnitDependency dependency,
+                const char *entry,
+                const char* filepath,
+                void *arg) {
+        Unit *u = arg;
+        int r;
+
+        assert(u);
+
+        r = unit_add_dependency_by_name(u, dependency, entry, filepath, true);
+        if (r < 0)
+                log_error_errno(r, "Cannot add dependency %s to %s, ignoring: %m", entry, u->id);
+
+        return 0;
+}
+
+int unit_load_dropin(Unit *u) {
+        _cleanup_strv_free_ char **l = NULL;
+        Iterator i;
+        char *t, **f;
+        int r;
+
+        assert(u);
+
+        /* Load dependencies from supplementary drop-in directories */
+
+        SET_FOREACH(t, u->names, i) {
+                char **p;
+
+                STRV_FOREACH(p, u->manager->lookup_paths.search_path) {
+                        unit_file_process_dir(u->manager->unit_path_cache, *p, t, ".wants", UNIT_WANTS,
+                                              add_dependency_consumer, u, NULL);
+                        unit_file_process_dir(u->manager->unit_path_cache, *p, t, ".requires", UNIT_REQUIRES,
+                                              add_dependency_consumer, u, NULL);
+                }
+        }
+
+        r = unit_find_dropin_paths(u, &l);
+        if (r <= 0)
+                return 0;
+
+        if (!u->dropin_paths) {
+                u->dropin_paths = l;
+                l = NULL;
+        } else {
+                r = strv_extend_strv(&u->dropin_paths, l, true);
+                if (r < 0)
+                        return log_oom();
+        }
+
+        STRV_FOREACH(f, u->dropin_paths) {
+                config_parse(u->id, *f, NULL,
+                             UNIT_VTABLE(u)->sections,
+                             config_item_perf_lookup, load_fragment_gperf_lookup,
+                             false, false, false, u);
+        }
+
+        u->dropin_mtime = now(CLOCK_REALTIME);
+
+        return 0;
+}