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"
32 #include "conf-files.h"
34 static int iterate_dir(
37 UnitDependency dependency,
40 _cleanup_closedir_ DIR *d = NULL;
46 /* The config directories are special, since the order of the
49 r = strv_extend(strv, path);
61 log_error("Failed to open directory %s: %m", path);
67 _cleanup_free_ char *f = NULL;
72 if (!de && errno != 0) {
74 log_error("Failed to read directory %s: %s", path, strerror(k));
81 if (ignore_file(de->d_name))
84 f = strjoin(path, "/", de->d_name, NULL);
88 r = unit_add_dependency_by_name(u, dependency, de->d_name, f, true);
90 log_error("Cannot add dependency %s to %s, ignoring: %s", de->d_name, u->id, strerror(-r));
96 static int process_dir(
98 const char *unit_path,
101 UnitDependency dependency,
104 _cleanup_free_ char *path = NULL;
112 path = strjoin(unit_path, "/", name, suffix, NULL);
116 if (!u->manager->unit_path_cache || set_get(u->manager->unit_path_cache, path))
117 iterate_dir(u, path, dependency, strv);
120 _cleanup_free_ char *template = NULL, *p = NULL;
121 /* Also try the template dir */
123 template = unit_name_template(name);
127 p = strjoin(unit_path, "/", template, suffix, NULL);
131 if (!u->manager->unit_path_cache || set_get(u->manager->unit_path_cache, p))
132 iterate_dir(u, p, dependency, strv);
138 char **unit_find_dropin_paths(Unit *u) {
139 _cleanup_strv_free_ char **strv = NULL;
140 char **configs = NULL;
147 SET_FOREACH(t, u->names, i) {
150 STRV_FOREACH(p, u->manager->lookup_paths.unit_path)
151 process_dir(u, *p, t, ".d", _UNIT_DEPENDENCY_INVALID, &strv);
154 if (strv_isempty(strv))
157 r = conf_files_list_strv(&configs, ".conf", NULL, (const char**) strv);
159 log_error("Failed to get list of configuration files: %s", strerror(-r));
167 int unit_load_dropin(Unit *u) {
174 /* Load dependencies from supplementary drop-in directories */
176 SET_FOREACH(t, u->names, i) {
179 STRV_FOREACH(p, u->manager->lookup_paths.unit_path) {
180 process_dir(u, *p, t, ".wants", UNIT_WANTS, NULL);
181 process_dir(u, *p, t, ".requires", UNIT_REQUIRES, NULL);
185 u->dropin_paths = unit_find_dropin_paths(u);
186 if (! u->dropin_paths)
189 STRV_FOREACH(f, u->dropin_paths) {
190 config_parse(u->id, *f, NULL,
191 UNIT_VTABLE(u)->sections, config_item_perf_lookup,
192 (void*) load_fragment_gperf_lookup, false, false, u);
195 u->dropin_mtime = now(CLOCK_REALTIME);