From e5d09818787635bcb8f91e46cdbd8f1b16b698d2 Mon Sep 17 00:00:00 2001
From: Michael Zhou <zhoumichaely@gmail.com>
Date: Fri, 3 Jun 2011 05:46:25 +0000
Subject: add encrypted root support

---
 initramfs-init.in | 13 +++++++++++++
 1 file changed, 13 insertions(+)

(limited to 'initramfs-init.in')

diff --git a/initramfs-init.in b/initramfs-init.in
index 924357c..4e15b5a 100755
--- a/initramfs-init.in
+++ b/initramfs-init.in
@@ -196,6 +196,17 @@ start_raid() {
 	fi
 }
 
+# start cryptsetup if exists
+start_cryptsetup() {
+	[ -x /sbin/cryptsetup ] || return
+	modprobe dm-crypt
+	if [ -n "$KOPT_cryptroot" ]; then
+		modprobe dm-crypt
+		for map in /etc/keymap/*; do if [ -f "$map" ]; then zcat "$map" | loadkmap && break; fi ; done
+		cryptsetup luksOpen "$KOPT_cryptroot" "$KOPT_cryptdm"
+	fi
+}
+
 # start lvm if exists
 start_lvm() {
 	[ -x /sbin/lvm ] || return
@@ -317,6 +328,7 @@ if [ -n "$KOPT_root" ]; then
 	[ -n "$KOPT_usbdelay" ] && sleep "$KOPT_usbdelay"
 	wait_usb
 	start_raid
+	start_cryptsetup
 	start_lvm
 	ebegin "Mounting root"
 	retry_mount -o ro $KOPT_root $sysroot 2>/dev/null
@@ -340,6 +352,7 @@ fi
 
 # incase we have alpine_dev on raid device...
 start_raid
+start_cryptsetup
 start_lvm
 
 # locate boot media and mount it
-- 
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