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-rw-r--r--src/test/Makefile.am1
-rw-r--r--src/udev/Makefile.am7
-rw-r--r--src/udev/udev-builtin-kmod.c134
-rw-r--r--src/udev/udev-builtin.c1
-rw-r--r--src/udev/udev.h2
5 files changed, 143 insertions, 2 deletions
diff --git a/src/test/Makefile.am b/src/test/Makefile.am
index ca7fde035c..d50200d821 100644
--- a/src/test/Makefile.am
+++ b/src/test/Makefile.am
@@ -28,6 +28,7 @@ test_udev_LDADD = \
$(top_builddir)/src/libudev/libudev-private.la \
$(top_builddir)/src/udev/libudev-core.la \
$(BLKID_LIBS) \
+ $(KMOD_LIBS) \
$(SELINUX_LIBS)
test_udev_CPPFLAGS = \
diff --git a/src/udev/Makefile.am b/src/udev/Makefile.am
index cf0725a196..ab1322a1a2 100644
--- a/src/udev/Makefile.am
+++ b/src/udev/Makefile.am
@@ -49,6 +49,7 @@ libudev_core_la_SOURCES = \
udev-builtin-firmware.c \
udev-builtin-hwdb.c \
udev-builtin-input_id.c \
+ udev-builtin-kmod.c \
udev-builtin-net_id.c \
udev-builtin-path_id.c \
udev-builtin-usb_id.c \
@@ -100,11 +101,13 @@ include_HEADERS = \
libudev_core_la_CFLAGS = \
$(AM_CFLAGS) \
- $(BLKID_CFLAGS)
+ $(BLKID_CFLAGS) \
+ $(KMOD_CFLAGS)
libudev_core_la_LIBADD = \
$(top_builddir)/src/libudev/libudev-private.la \
- $(BLKID_LIBS)
+ $(BLKID_LIBS) \
+ $(KMOD_LIBS)
if HAVE_ACL
libudev_core_la_SOURCES += \
diff --git a/src/udev/udev-builtin-kmod.c b/src/udev/udev-builtin-kmod.c
new file mode 100644
index 0000000000..17aca2944d
--- /dev/null
+++ b/src/udev/udev-builtin-kmod.c
@@ -0,0 +1,134 @@
+/*
+ * load kernel modules
+ *
+ * Copyright (C) 2011-2012 Kay Sievers <kay@vrfy.org>
+ * Copyright (C) 2011 ProFUSION embedded systems
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <unistd.h>
+#include <string.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
+#include <libkmod.h>
+
+#include "udev.h"
+
+static struct kmod_ctx *ctx;
+
+static int load_module(struct udev *udev, const char *alias)
+{
+ struct kmod_list *list = NULL;
+ struct kmod_list *l;
+ int err;
+
+ err = kmod_module_new_from_lookup(ctx, alias, &list);
+ if (err < 0)
+ return err;
+
+ if (list == NULL)
+ log_debug("no module matches '%s'\n", alias);
+
+ kmod_list_foreach(l, list) {
+ struct kmod_module *mod = kmod_module_get_module(l);
+
+ err = kmod_module_probe_insert_module(mod, KMOD_PROBE_APPLY_BLACKLIST, NULL, NULL, NULL, NULL);
+ if (err == KMOD_PROBE_APPLY_BLACKLIST)
+ log_debug("module '%s' is blacklisted\n", kmod_module_get_name(mod));
+ else if (err == 0)
+ log_debug("inserted '%s'\n", kmod_module_get_name(mod));
+ else
+ log_debug("failed to insert '%s'\n", kmod_module_get_name(mod));
+
+ kmod_module_unref(mod);
+ }
+
+ kmod_module_unref_list(list);
+ return err;
+}
+
+static void udev_kmod_log(void *data, int priority, const char *file, int line,
+ const char *fn, const char *format, va_list args)
+{
+ udev_main_log(data, priority, file, line, fn, format, args);
+}
+
+static int builtin_kmod(struct udev_device *dev, int argc, char *argv[], bool test)
+{
+ struct udev *udev = udev_device_get_udev(dev);
+ int i;
+
+ if (!ctx)
+ return 0;
+
+ if (argc < 3 || strcmp(argv[1], "load")) {
+ log_error("expect: %s load <module>\n", argv[0]);
+ return EXIT_FAILURE;
+ }
+
+ for (i = 2; argv[i]; i++) {
+ log_debug("execute '%s' '%s'\n", argv[1], argv[i]);
+ load_module(udev, argv[i]);
+ }
+
+ return EXIT_SUCCESS;
+}
+
+/* called at udev startup and reload */
+static int builtin_kmod_init(struct udev *udev)
+{
+ if (ctx)
+ return 0;
+
+ ctx = kmod_new(NULL, NULL);
+ if (!ctx)
+ return -ENOMEM;
+
+ log_debug("load module index\n");
+ kmod_set_log_fn(ctx, udev_kmod_log, udev);
+ kmod_load_resources(ctx);
+ return 0;
+}
+
+/* called on udev shutdown and reload request */
+static void builtin_kmod_exit(struct udev *udev)
+{
+ log_debug("unload module index\n");
+ ctx = kmod_unref(ctx);
+}
+
+/* called every couple of seconds during event activity; 'true' if config has changed */
+static bool builtin_kmod_validate(struct udev *udev)
+{
+ log_debug("validate module index\n");
+ if (!ctx)
+ return false;
+ return (kmod_validate_resources(ctx) != KMOD_RESOURCES_OK);
+}
+
+const struct udev_builtin udev_builtin_kmod = {
+ .name = "kmod",
+ .cmd = builtin_kmod,
+ .init = builtin_kmod_init,
+ .exit = builtin_kmod_exit,
+ .validate = builtin_kmod_validate,
+ .help = "kernel module loader",
+ .run_once = false,
+};
diff --git a/src/udev/udev-builtin.c b/src/udev/udev-builtin.c
index e0e18d4ee9..ee81b2d713 100644
--- a/src/udev/udev-builtin.c
+++ b/src/udev/udev-builtin.c
@@ -35,6 +35,7 @@ static const struct udev_builtin *builtins[] = {
[UDEV_BUILTIN_FIRMWARE] = &udev_builtin_firmware,
[UDEV_BUILTIN_HWDB] = &udev_builtin_hwdb,
[UDEV_BUILTIN_INPUT_ID] = &udev_builtin_input_id,
+ [UDEV_BUILTIN_KMOD] = &udev_builtin_kmod,
[UDEV_BUILTIN_NET_ID] = &udev_builtin_net_id,
[UDEV_BUILTIN_PATH_ID] = &udev_builtin_path_id,
[UDEV_BUILTIN_USB_ID] = &udev_builtin_usb_id,
diff --git a/src/udev/udev.h b/src/udev/udev.h
index c10610ea27..82cd2ad6d0 100644
--- a/src/udev/udev.h
+++ b/src/udev/udev.h
@@ -139,6 +139,7 @@ enum udev_builtin_cmd {
UDEV_BUILTIN_FIRMWARE,
UDEV_BUILTIN_HWDB,
UDEV_BUILTIN_INPUT_ID,
+ UDEV_BUILTIN_KMOD,
UDEV_BUILTIN_NET_ID,
UDEV_BUILTIN_PATH_ID,
UDEV_BUILTIN_USB_ID,
@@ -161,6 +162,7 @@ extern const struct udev_builtin udev_builtin_btrfs;
extern const struct udev_builtin udev_builtin_firmware;
extern const struct udev_builtin udev_builtin_hwdb;
extern const struct udev_builtin udev_builtin_input_id;
+extern const struct udev_builtin udev_builtin_kmod;
extern const struct udev_builtin udev_builtin_net_id;
extern const struct udev_builtin udev_builtin_path_id;
extern const struct udev_builtin udev_builtin_usb_id;
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-24 00:02:10 +0000