From f9792380f7b2f9bfaab9361378e8e72bb67e77a2 Mon Sep 17 00:00:00 2001
From: Aaron Griffin <aaron@archlinux.org>
Date: Thu, 27 Apr 2006 22:50:03 +0000
Subject: * Initial attempt to get the device-mapper stuff in order * Moved
 'init' to /lib/initcpio/init to be more in-tune   with the naming scheme

git-svn-id: http://projects.archlinux.org/svn/initramfs/mkinitcpio@27 880c04e9-e011-0410-abf7-b926e227c9cd
---
 hooks/encrypt | 68 ++++++++++++++++++++++++++++++++++++++++++++++++-----------
 hooks/lvm2    | 18 ++++++++++++++++
 2 files changed, 74 insertions(+), 12 deletions(-)
 create mode 100644 hooks/lvm2

(limited to 'hooks')

diff --git a/hooks/encrypt b/hooks/encrypt
index 8b4c80b..bf7bc9f 100644
--- a/hooks/encrypt
+++ b/hooks/encrypt
@@ -1,17 +1,61 @@
 # vim: set ft=sh:
+# TODO this one needs some work to work with lots of different
+#       encryption schemes
 run_hook ()
 {
-    echo ""
-    echo "A password is required to access the root filesystem:"
-    echo -n "password: "
-    if /bin/cryptsetup.static isLuks ${root} >/dev/null 2>&1; then
-        /bin/cryptsetup.static luksOpen ${root} root
-    else
-        /bin/cryptsetup create root ${root}
-    fi
+    mkdevice () { /bin/mknod "/dev/mapper/control" c ${1} ${2}; }
+    if [ -e "/sys/class/misc/device-mapper" ]; then
+        /bin/modprobe -a -q dm-crypt >/dev/null 2>&1
+        read dev_t < /sys/class/misc/device-mapper/dev
+        OLDIFS=$IFS; IFS=:
+        mkdevice $dev_t
+        IFS=$OLDIFS
 
-    if [ $? != 0 ]; then
-        echo "ERROR: Password Verification Failed"
-        exit 1
-    fi
+        if /bin/cryptsetup isLuks ${root} >/dev/null 2>&1; then
+            echo ""
+            echo "A password is required to access the root filesystem:"
+            echo -n "password: "
+            /bin/cryptsetup luksOpen ${root} root
+            if [ $? -ne 0 ]; then
+                err "Password verification failed, aborting..."
+                exit 1
+            else
+                if [ -e "/dev/mapper/root" ]; then
+                    export root="/dev/mapper/root"
+                else
+                    err "Password succeeded, but root creation failed, aborting..."
+                    exit 1
+                fi
+            fi
+        else
+            do_oldcrypto ()
+            {
+                exe="/bin/cryptsetup create root ${root}"
+                [ "x${1}" != "x" ] && exe="$exe --hash \"${1}\""
+                [ "x${2}" != "x" ] && exe="$exe --cipher \"${2}\""
+                [ "x${3}" != "x" ] && exe="$exe --key-size \"${3}\""
+                [ "x${4}" != "x" ] && exe="$exe --offset \"${4}\""
+                [ "x${5}" != "x" ] && exe="$exe --skip \"${5}\""
+                echo ""
+                echo "A password is required to access the root filesystem:"
+                echo -n "password: "
+                eval "${exe}"
+            }
+            msg "Non-LUKS encrypted device found..."
+            if [ "x${crypto}" != "x" ]; then
+                do_oldcrypt ${crypto}
+                if [ $? -ne 0 ]; then
+                    err "Password verification failed, aborting..."
+                    err "Verify parameter format: crypto=hash:cipher:keysize:offset:skip"
+                    exit 1
+                else
+                    if [ -e "/dev/mapper/root" ]; then
+                        export root="/dev/mapper/root"
+                    else
+                        err "Password succeeded, but root creation failed, aborting..."
+                        exit 1
+                    fi
+                fi
+            fi
+        fi
 }
diff --git a/hooks/lvm2 b/hooks/lvm2
new file mode 100644
index 0000000..a1788ce
--- /dev/null
+++ b/hooks/lvm2
@@ -0,0 +1,18 @@
+# vim:set ft=sh:
+run_hook ()
+{
+    mkdevice () { /bin/mknod "/dev/mapper/control" c ${1} ${2}; }
+
+    if [ -e "/sys/class/misc/device-mapper" ]; then
+        /bin/modprobe -q dm-mod >/dev/null 2>&1
+        read dev_t < /sys/class/misc/device-mapper/dev
+        OLDIFS=$IFS; IFS=:
+        mkdevice $dev_t
+        IFS=$OLDIFS
+
+        msg "Scanning logical volumes..."
+        /bin/lvm vgscan --ignorelockingfailure
+        msg "Activating logical volumes..."
+        /bin/lvm vgchange --ignorelockingfailure -ay
+    fi
+}
-- 
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