From aa29418a13dc1e1eedca702663e733cc8d9f9859 Mon Sep 17 00:00:00 2001
From: Kay Sievers <kay.sievers@vrfy.org>
Date: Wed, 21 Dec 2011 23:10:56 +0100
Subject: [PATCH 1/1] add builtin load/unload initializers

---
 udev/udev-builtin-kmod.c    | 21 ++++++++++++++++++++-
 udev/udev-builtin.c         | 20 ++++++++++++++++++++
 udev/udev.h                 |  4 ++++
 udev/udevadm-test-builtin.c |  3 +++
 udev/udevadm-test.c         |  3 +++
 udev/udevd.c                |  3 +++
 6 files changed, 53 insertions(+), 1 deletion(-)

diff --git a/udev/udev-builtin-kmod.c b/udev/udev-builtin-kmod.c
index df057735d..90f9c564e 100644
--- a/udev/udev-builtin-kmod.c
+++ b/udev/udev-builtin-kmod.c
@@ -1,5 +1,5 @@
 /*
- * probe disks for filesystems and partitions
+ * load kernel modules
  *
  * Copyright (C) 2011 Kay Sievers <kay.sievers@vrfy.org>
  *
@@ -28,15 +28,34 @@
 
 #include "udev.h"
 
+static char *kmod;
+
 static int builtin_kmod(struct udev_device *dev, const char *command, bool test)
 {
 	printf("soon we load a module here: '%s'\n", command);
+	printf("test: %s\n", kmod);
 	return EXIT_SUCCESS;
 }
 
+static int builtin_kmod_load(struct udev *udev)
+{
+	printf("load module index\n");
+	asprintf(&kmod, "pid: %u\n", getpid());
+	return 0;
+}
+
+static int builtin_kmod_unload(struct udev *udev)
+{
+	printf("unload module index\n");
+	free(kmod);
+	return 0;
+}
+
 const struct udev_builtin udev_builtin_kmod = {
 	.name = "kmod",
 	.cmd = builtin_kmod,
+	.load = builtin_kmod_load,
+	.unload = builtin_kmod_unload,
 	.help = "kernel module loader",
 	.run_once = false,
 };
diff --git a/udev/udev-builtin.c b/udev/udev-builtin.c
index 36821702c..9f2172769 100644
--- a/udev/udev-builtin.c
+++ b/udev/udev-builtin.c
@@ -33,6 +33,26 @@ static const struct udev_builtin *builtins[] = {
 	[UDEV_BUILTIN_KMOD] = &udev_builtin_kmod,
 };
 
+int udev_builtin_load(struct udev *udev)
+{
+	unsigned int i;
+
+	for (i = 0; i < ARRAY_SIZE(builtins); i++)
+		if (builtins[i]->load)
+			builtins[i]->load(udev);
+	return 0;
+}
+
+int udev_builtin_unload(struct udev *udev)
+{
+	unsigned int i;
+
+	for (i = 0; i < ARRAY_SIZE(builtins); i++)
+		if (builtins[i]->unload)
+			builtins[i]->unload(udev);
+	return 0;
+}
+
 int udev_builtin_list(struct udev *udev)
 {
 	unsigned int i;
diff --git a/udev/udev.h b/udev/udev.h
index 0a3d7c450..a07c525a8 100644
--- a/udev/udev.h
+++ b/udev/udev.h
@@ -158,6 +158,8 @@ struct udev_builtin {
 	const char *name;
 	int (*cmd)(struct udev_device *dev, const char *command, bool test);
 	const char *help;
+	int (*load)(struct udev *udev);
+	int (*unload)(struct udev *udev);
 	bool run_once;
 };
 extern const struct udev_builtin udev_builtin_path_id;
@@ -165,6 +167,8 @@ extern const struct udev_builtin udev_builtin_usb_id;
 extern const struct udev_builtin udev_builtin_input_id;
 extern const struct udev_builtin udev_builtin_blkid;
 extern const struct udev_builtin udev_builtin_kmod;
+int udev_builtin_load(struct udev *udev);
+int udev_builtin_unload(struct udev *udev);
 enum udev_builtin_cmd udev_builtin_lookup(const char *command);
 const char *udev_builtin_name(enum udev_builtin_cmd cmd);
 bool udev_builtin_run_once(enum udev_builtin_cmd cmd);
diff --git a/udev/udevadm-test-builtin.c b/udev/udevadm-test-builtin.c
index f8af8992d..18f04bf88 100644
--- a/udev/udevadm-test-builtin.c
+++ b/udev/udevadm-test-builtin.c
@@ -99,6 +99,8 @@ static int adm_builtin(struct udev *udev, int argc, char *argv[])
 		goto out;
 	}
 
+	udev_builtin_load(udev);
+
 	cmd = udev_builtin_lookup(command);
 	if (cmd >= UDEV_BUILTIN_MAX) {
 		fprintf(stderr, "unknown command '%s'\n", command);
@@ -113,6 +115,7 @@ static int adm_builtin(struct udev *udev, int argc, char *argv[])
 	}
 out:
 	udev_device_unref(dev);
+	udev_builtin_unload(udev);
 	return rc;
 }
 
diff --git a/udev/udevadm-test.c b/udev/udevadm-test.c
index e807fc05a..a7c6226a5 100644
--- a/udev/udevadm-test.c
+++ b/udev/udevadm-test.c
@@ -103,6 +103,8 @@ static int adm_test(struct udev *udev, int argc, char *argv[])
 
 	sigprocmask(SIG_SETMASK, NULL, &sigmask_orig);
 
+	udev_builtin_load(udev);
+
 	rules = udev_rules_new(udev, resolve_names);
 	if (rules == NULL) {
 		fprintf(stderr, "error reading rules\n");
@@ -159,6 +161,7 @@ out:
 	udev_event_unref(event);
 	udev_device_unref(dev);
 	udev_rules_unref(rules);
+	udev_builtin_unload(udev);
 	return rc;
 }
 
diff --git a/udev/udevd.c b/udev/udevd.c
index 05d4b2d66..d1f7cd890 100644
--- a/udev/udevd.c
+++ b/udev/udevd.c
@@ -1513,6 +1513,8 @@ int main(int argc, char *argv[])
 	}
 	fd_worker = worker_watch[READ_END];
 
+	udev_builtin_load(udev);
+
 	rules = udev_rules_new(udev, resolve_names);
 	if (rules == NULL) {
 		err(udev, "error reading rules\n");
@@ -1712,6 +1714,7 @@ exit_daemonize:
 	worker_list_cleanup(udev);
 	event_queue_cleanup(udev, EVENT_UNDEF);
 	udev_rules_unref(rules);
+	udev_builtin_unload(udev);
 	if (fd_signal >= 0)
 		close(fd_signal);
 	if (worker_watch[READ_END] >= 0)
-- 
2.30.2