1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
6 * Copyright (C) 2011-2012 Kay Sievers <kay@vrfy.org>
7 * Copyright (C) 2011 ProFUSION embedded systems
9 * This program is free software: you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation, either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program. If not, see <http://www.gnu.org/licenses/>.
29 #include "string-util.h"
32 static struct kmod_ctx
*ctx
= NULL
;
34 static int load_module(struct udev
*udev
, const char *alias
) {
35 struct kmod_list
*list
= NULL
;
39 err
= kmod_module_new_from_lookup(ctx
, alias
, &list
);
44 log_debug("No module matches '%s'", alias
);
46 kmod_list_foreach(l
, list
) {
47 struct kmod_module
*mod
= kmod_module_get_module(l
);
49 err
= kmod_module_probe_insert_module(mod
, KMOD_PROBE_APPLY_BLACKLIST
, NULL
, NULL
, NULL
, NULL
);
50 if (err
== KMOD_PROBE_APPLY_BLACKLIST
)
51 log_debug("Module '%s' is blacklisted", kmod_module_get_name(mod
));
53 log_debug("Inserted '%s'", kmod_module_get_name(mod
));
55 log_debug("Failed to insert '%s'", kmod_module_get_name(mod
));
57 kmod_module_unref(mod
);
60 kmod_module_unref_list(list
);
64 _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
) {
65 log_internalv(priority
, 0, file
, line
, fn
, format
, args
);
68 static int builtin_kmod(struct udev_device
*dev
, int argc
, char *argv
[], bool test
) {
69 struct udev
*udev
= udev_device_get_udev(dev
);
75 if (argc
< 3 || !streq(argv
[1], "load")) {
76 log_error("expect: %s load <module>", argv
[0]);
80 for (i
= 2; argv
[i
]; i
++) {
81 log_debug("Execute '%s' '%s'", argv
[1], argv
[i
]);
82 load_module(udev
, argv
[i
]);
88 /* called at udev startup and reload */
89 static int builtin_kmod_init(struct udev
*udev
) {
93 ctx
= kmod_new(NULL
, NULL
);
97 log_debug("Load module index");
98 kmod_set_log_fn(ctx
, udev_kmod_log
, udev
);
99 kmod_load_resources(ctx
);
103 /* called on udev shutdown and reload request */
104 static void builtin_kmod_exit(struct udev
*udev
) {
105 log_debug("Unload module index");
106 ctx
= kmod_unref(ctx
);
109 /* called every couple of seconds during event activity; 'true' if config has changed */
110 static bool builtin_kmod_validate(struct udev
*udev
) {
111 log_debug("Validate module index");
114 return (kmod_validate_resources(ctx
) != KMOD_RESOURCES_OK
);
117 const struct udev_builtin udev_builtin_kmod
= {
120 .init
= builtin_kmod_init
,
121 .exit
= builtin_kmod_exit
,
122 .validate
= builtin_kmod_validate
,
123 .help
= "Kernel module loader",