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-rw-r--r--init.d/sysfs.in63
1 files changed, 63 insertions, 0 deletions
diff --git a/init.d/sysfs.in b/init.d/sysfs.in
new file mode 100644
index 00000000..e711aee4
--- /dev/null
+++ b/init.d/sysfs.in
@@ -0,0 +1,63 @@
+#!@PREFIX@/sbin/runscript
+# Copyright 2007-2008 Roy Marples <roy@marples.name>
+# All rights reserved. Released under the 2-clause BSD license.
+
+description="Mount the sys filesystem."
+
+depend()
+{
+ keyword noprefix
+}
+
+mount_sys()
+{
+ grep -Eq "[[:space:]]+sysfs$" /proc/filesystems || return 1
+ mountinfo -q /sys && return 0
+
+ if [ ! -d /sys ]; then
+ if ! mkdir -m 0755 /sys; then
+ ewarn "Could not create /sys!"
+ return 1
+ fi
+ fi
+
+ ebegin "Mounting /sys"
+ if ! fstabinfo --mount /sys; then
+ mount -n -t sysfs -o noexec,nosuid,nodev sysfs /sys
+ fi
+ eend $?
+}
+
+mount_misc()
+{
+ # Setup Kernel Support for securityfs
+ if [ -d /sys/kernel/security ] && ! mountinfo -q /sys/kernel/security; then
+ if grep -qs securityfs /proc/filesystems; then
+ ebegin "Mounting security filesystem"
+ mount -t securityfs -o nodev,noexec,nosuid \
+ securityfs /sys/kernel/security
+ eend $?
+ fi
+ fi
+
+ # Setup Kernel Support for debugfs
+ if [ -d /sys/kernel/debug ] && ! mountinfo -q /sys/kernel/debug; then
+ if grep -qs debugfs /proc/filesystems; then
+ ebegin "Mounting debug filesystem"
+ mount -t debugfs -o nodev,noexec,nosuid \
+ debugfs /sys/kernel/debug
+ eend $?
+ fi
+ fi
+}
+
+start()
+{
+ local retval
+ mount_sys
+ retval=$?
+ if [ ${retval} -eq 0 ]; then
+ mount_misc
+ fi
+ return ${retval}
+}