4 * Copyright (C) 2011-2012 Kay Sievers <kay@vrfy.org>
5 * Copyright (C) 2011 ProFUSION embedded systems
7 * This program is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation, either version 2 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
34 static struct kmod_ctx *ctx = NULL;
36 static int load_module(struct udev *udev, const char *alias) {
37 struct kmod_list *list = NULL;
41 err = kmod_module_new_from_lookup(ctx, alias, &list);
46 log_debug("No module matches '%s'", alias);
48 kmod_list_foreach(l, list) {
49 struct kmod_module *mod = kmod_module_get_module(l);
51 err = kmod_module_probe_insert_module(mod, KMOD_PROBE_APPLY_BLACKLIST, NULL, NULL, NULL, NULL);
52 if (err == KMOD_PROBE_APPLY_BLACKLIST)
53 log_debug("Module '%s' is blacklisted", kmod_module_get_name(mod));
55 log_debug("Inserted '%s'", kmod_module_get_name(mod));
57 log_debug("Failed to insert '%s'", kmod_module_get_name(mod));
59 kmod_module_unref(mod);
62 kmod_module_unref_list(list);
66 _printf_(6,0) static void udev_kmod_log(void *data, int priority, const char *file, int line, const char *fn, const char *format, va_list args) {
67 log_internalv(priority, 0, file, line, fn, format, args);
70 static int builtin_kmod(struct udev_device *dev, int argc, char *argv[], bool test) {
71 struct udev *udev = udev_device_get_udev(dev);
77 if (argc < 3 || !streq(argv[1], "load")) {
78 log_error("expect: %s load <module>", argv[0]);
82 for (i = 2; argv[i]; i++) {
83 log_debug("Execute '%s' '%s'", argv[1], argv[i]);
84 load_module(udev, argv[i]);
90 /* called at udev startup and reload */
91 static int builtin_kmod_init(struct udev *udev) {
95 ctx = kmod_new(NULL, NULL);
99 log_debug("Load module index");
100 kmod_set_log_fn(ctx, udev_kmod_log, udev);
101 kmod_load_resources(ctx);
105 /* called on udev shutdown and reload request */
106 static void builtin_kmod_exit(struct udev *udev) {
107 log_debug("Unload module index");
108 ctx = kmod_unref(ctx);
111 /* called every couple of seconds during event activity; 'true' if config has changed */
112 static bool builtin_kmod_validate(struct udev *udev) {
113 log_debug("Validate module index");
116 return (kmod_validate_resources(ctx) != KMOD_RESOURCES_OK);
119 const struct udev_builtin udev_builtin_kmod = {
122 .init = builtin_kmod_init,
123 .exit = builtin_kmod_exit,
124 .validate = builtin_kmod_validate,
125 .help = "Kernel module loader",