1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
4 This file is part of systemd.
6 Copyright 2010 Lennart Poettering
8 systemd is free software; you can redistribute it and/or modify it
9 under the terms of the GNU Lesser General Public License as published by
10 the Free Software Foundation; either version 2.1 of the License, or
11 (at your option) any later version.
13 systemd is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 Lesser General Public License for more details.
18 You should have received a copy of the GNU Lesser General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
26 #include "load-dropin.h"
29 #include "unit-name.h"
30 #include "conf-parser.h"
31 #include "load-fragment.h"
33 static int load_dropin_config_file(Unit *u, const char *path) {
37 if (!endswith(path, ".conf"))
40 return config_parse(path, NULL, UNIT_VTABLE(u)->sections, config_item_perf_lookup, (void*) load_fragment_gperf_lookup, false, u);
43 static int iterate_dir(Unit *u, const char *path, UnitDependency dependency) {
44 _cleanup_closedir_ DIR *d = NULL;
60 union dirent_storage buf;
61 _cleanup_free_ char *f = NULL;
64 k = readdir_r(d, &buf.de, &de);
66 log_error("Failed to read directory %s: %s", path, strerror(k));
73 if (ignore_file(de->d_name))
76 f = strjoin(path, "/", de->d_name, NULL);
80 if (dependency >= 0) {
81 r = unit_add_dependency_by_name(u, dependency, de->d_name, f, true);
83 log_error("Cannot add dependency %s to %s, ignoring: %s", de->d_name, u->id, strerror(-r));
85 r = load_dropin_config_file(u, f);
87 log_error("Cannot load drop-in configuration file %s for %s, ignoring: %s", f, u->id, strerror(-r));
94 static int process_dir(Unit *u, const char *unit_path, const char *name, const char *suffix, UnitDependency dependency) {
103 path = strjoin(unit_path, "/", name, suffix, NULL);
107 if (u->manager->unit_path_cache &&
108 !set_get(u->manager->unit_path_cache, path))
111 r = iterate_dir(u, path, dependency);
119 /* Also try the template dir */
121 template = unit_name_template(name);
125 path = strjoin(unit_path, "/", template, suffix, NULL);
131 if (u->manager->unit_path_cache &&
132 !set_get(u->manager->unit_path_cache, path))
135 r = iterate_dir(u, path, dependency);
145 int unit_load_dropin(Unit *u) {
151 /* Load dependencies from supplementary drop-in directories */
153 SET_FOREACH(t, u->names, i) {
156 STRV_FOREACH(p, u->manager->lookup_paths.unit_path) {
159 r = process_dir(u, *p, t, ".wants", UNIT_WANTS);
163 r = process_dir(u, *p, t, ".requires", UNIT_REQUIRES);
167 /* This loads the drop-in config snippets */
168 r = process_dir(u, *p, t, ".d", _UNIT_TYPE_INVALID);