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_errno(errno, "Failed to open directory %s: %m", path);
67 _cleanup_free_ char *f = NULL;
71 if (!de && errno != 0)
72 return log_error_errno(errno, "Failed to read directory %s: %m", path);
77 if (ignore_file(de->d_name))
80 f = strjoin(path, "/", de->d_name, NULL);
84 r = unit_add_dependency_by_name(u, dependency, de->d_name, f, true);
86 log_error_errno(r, "Cannot add dependency %s to %s, ignoring: %m", de->d_name, u->id);
92 static int process_dir(
94 const char *unit_path,
97 UnitDependency dependency,
100 _cleanup_free_ char *path = NULL;
107 path = strjoin(unit_path, "/", name, suffix, NULL);
111 if (!u->manager->unit_path_cache || set_get(u->manager->unit_path_cache, path))
112 iterate_dir(u, path, dependency, strv);
115 _cleanup_free_ char *template = NULL, *p = NULL;
116 /* Also try the template dir */
118 template = unit_name_template(name);
122 p = strjoin(unit_path, "/", template, suffix, NULL);
126 if (!u->manager->unit_path_cache || set_get(u->manager->unit_path_cache, p))
127 iterate_dir(u, p, dependency, strv);
133 char **unit_find_dropin_paths(Unit *u) {
134 _cleanup_strv_free_ char **strv = NULL;
135 char **configs = NULL;
142 SET_FOREACH(t, u->names, i) {
145 STRV_FOREACH(p, u->manager->lookup_paths.unit_path)
146 process_dir(u, *p, t, ".d", _UNIT_DEPENDENCY_INVALID, &strv);
149 if (strv_isempty(strv))
152 r = conf_files_list_strv(&configs, ".conf", NULL, (const char**) strv);
154 log_error_errno(r, "Failed to get list of configuration files: %m");
162 int unit_load_dropin(Unit *u) {
168 /* Load dependencies from supplementary drop-in directories */
170 SET_FOREACH(t, u->names, i) {
173 STRV_FOREACH(p, u->manager->lookup_paths.unit_path) {
174 process_dir(u, *p, t, ".wants", UNIT_WANTS, NULL);
175 process_dir(u, *p, t, ".requires", UNIT_REQUIRES, NULL);
179 u->dropin_paths = unit_find_dropin_paths(u);
180 if (!u->dropin_paths)
183 STRV_FOREACH(f, u->dropin_paths) {
184 config_parse(u->id, *f, NULL,
185 UNIT_VTABLE(u)->sections,
186 config_item_perf_lookup, load_fragment_gperf_lookup,
187 false, false, false, u);
190 u->dropin_mtime = now(CLOCK_REALTIME);