raidautorun: new applet, by:

Thomas Jarosch (email?) and
Bernhard Fischer <rep.nop@aon.at>

5 files changed, 39 insertions, 0 deletions

diff --git a/include/applets.h b/include/applets.h
index 0c0209676..14f6156af 100644
--- a/include/applets.h
+++ b/include/applets.h
@@ -228,6 +228,7 @@ USE_PRINTENV(APPLET(printenv, _BB_DIR_BIN, _BB_SUID_NEVER))
 USE_PRINTF(APPLET(printf, _BB_DIR_USR_BIN, _BB_SUID_NEVER))
 USE_PS(APPLET(ps, _BB_DIR_BIN, _BB_SUID_NEVER))
 USE_PWD(APPLET(pwd, _BB_DIR_BIN, _BB_SUID_NEVER))
+USE_RAIDAUTORUN(APPLET(raidautorun, _BB_DIR_SBIN, _BB_SUID_NEVER))
 USE_RDATE(APPLET(rdate, _BB_DIR_USR_SBIN, _BB_SUID_NEVER))
 USE_READAHEAD(APPLET(readahead, _BB_DIR_USR_BIN, _BB_SUID_NEVER))
 USE_READLINK(APPLET(readlink, _BB_DIR_USR_BIN, _BB_SUID_NEVER))
diff --git a/include/usage.h b/include/usage.h
index ffd00cfc8..f9597763e 100644
--- a/include/usage.h
+++ b/include/usage.h
@@ -2400,6 +2400,13 @@ USE_FEATURE_MDEV_CONFIG( \
         "$ pwd\n" \
         "/root\n"
 
+#define raidautorun_trivial_usage \
+        "DEVICE"
+#define raidautorun_full_usage \
+        "Tells the kernel to automatically search and start RAID arrays"
+#define raidautorun_example_usage \
+        "$ raidautorun /dev/md0"
+
 #define rdate_trivial_usage \
         "[-sp] HOST"
 #define rdate_full_usage \
diff --git a/miscutils/Config.in b/miscutils/Config.in
index 5d0ec8a42..e093924d7 100644
--- a/miscutils/Config.in
+++ b/miscutils/Config.in
@@ -284,6 +284,13 @@ config NMETER
         help
           nmeter prints various system parameters continuously.
 
+config RAIDAUTORUN
+        bool "raidautorun"
+        default n
+        help
+          raidautorun tells the kernel md driver to
+          search and start RAID arrays.
+
 config READAHEAD
         bool "readahead"
         default n
diff --git a/miscutils/Kbuild b/miscutils/Kbuild
index 3173e1dab..16c76fa38 100644
--- a/miscutils/Kbuild
+++ b/miscutils/Kbuild
@@ -19,6 +19,7 @@ lib-$(CONFIG_MAKEDEVS)    += makedevs.o
 lib-$(CONFIG_MOUNTPOINT)  += mountpoint.o
 lib-$(CONFIG_MT)          += mt.o
 lib-$(CONFIG_NMETER)      += nmeter.o
+lib-$(CONFIG_RAIDAUTORUN) += raidautorun.o
 lib-$(CONFIG_READAHEAD)   += readahead.o
 lib-$(CONFIG_RUNLEVEL)    += runlevel.o
 lib-$(CONFIG_RX)          += rx.o
diff --git a/miscutils/raidautorun.c b/miscutils/raidautorun.c
new file mode 100644
index 000000000..c25630494
--- /dev/null
+++ b/miscutils/raidautorun.c
@@ -0,0 +1,23 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * raidautorun implementation for busybox
+ *
+ * Copyright (C) 2006 Bernhard Fischer
+ *
+ * Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
+ *
+ */
+
+#include "busybox.h"
+
+#include <linux/major.h>
+#include <linux/raid/md_u.h>
+
+int raidautorun_main(int argc, char **argv)
+{
+        if (ioctl(xopen(argv[1], O_RDONLY), RAID_AUTORUN, NULL) != 0) {
+                bb_perror_msg_and_die("ioctl");
+        }
+
+        return EXIT_SUCCESS;
+}