From e57e4ebe4aee02b175f3d4d13a0fa1838769b3f2 Mon Sep 17 00:00:00 2001
From: Tom Gundersen <teg@jklm.no>
Date: Sat, 17 Mar 2012 11:38:14 +0100
Subject: crypto: move function from sysinit to functions

No functional change, just improve readability.

Signed-off-by: Tom Gundersen <teg@jklm.no>
---
 rc.sysinit | 77 --------------------------------------------------------------
 1 file changed, 77 deletions(-)

(limited to 'rc.sysinit')

diff --git a/rc.sysinit b/rc.sysinit
index 06b4bda..3528bb2 100755
--- a/rc.sysinit
+++ b/rc.sysinit
@@ -89,83 +89,6 @@ activate_vgs
 # Set up non-root encrypted partition mappings
 if [[ -f /etc/crypttab ]] && type -p cryptsetup >/dev/null; then
 	stat_busy "Unlocking encrypted volumes:"
-		do_unlock() {
-			# $1 = requested name
-			# $2 = source device
-			# $3 = password
-			# $4 = options
-			stat_append "${1}.."
-			local open=create a=$1 b=$2 failed=0
-			# Ordering of options is different if you are using LUKS vs. not.
-			# Use ugly swizzling to deal with it.
-			# isLuks only gives an exit code but no output to stdout or stderr.
-			if cryptsetup isLuks "$2" 2>/dev/null; then
-				open=luksOpen
-				a=$2
-				b=$1
-			fi
-			case $3 in
-				SWAP)
-					local _overwriteokay=0
-					if [[ -b $2 && -r $2 ]]; then
-						# This is DANGEROUS! If there is any known file system,
-						# partition table, RAID or LVM volume on the device
-						# we don't overwrite it.
-						#
-						# 'blkid' returns 2 if no valid signature has been found.
-						# Only in this case we should allow overwriting the device.
-						#
-						# This sanity check _should_ be sufficient, but it might not.
-						# This may cause dataloss if it is not used carefully.
-						blkid -p "$2" &>/dev/null
-						(( $? == 2 )) && _overwriteokay=1
-					fi
-					if (( _overwriteokay == 0 )); then
-						false
-					elif cryptsetup -d /dev/urandom $4 $open "$a" "$b" >/dev/null; then
-						stat_append "creating swapspace.."
-						mkswap -f -L $1 /dev/mapper/$1 >/dev/null
-					fi;;
-				ASK)
-					printf "\nOpening '$1' volume:\n"
-					cryptsetup $4 $open "$a" "$b" < /dev/console;;
-				/dev*)
-					local ckdev=${3%%:*}
-					local cka=${3#*:}
-					local ckb=${cka#*:}
-					local cka=${cka%:*}
-					local ckfile=/dev/ckfile
-					local ckdir=/dev/ckdir
-					case ${cka} in
-						*[!0-9]*)
-							# Use a file on the device
-							# cka is not numeric: cka=filesystem, ckb=path
-							mkdir ${ckdir}
-							mount -r -t ${cka} ${ckdev} ${ckdir}
-							dd if=${ckdir}/${ckb} of=${ckfile} >/dev/null 2>&1
-							umount ${ckdir}
-							rmdir ${ckdir};;
-						*)
-							# Read raw data from the block device
-							# cka is numeric: cka=offset, ckb=length
-							dd if=${ckdev} of=${ckfile} bs=1 skip=${cka} count=${ckb} >/dev/null 2>&1;;
-					esac
-					cryptsetup -d ${ckfile} $4 $open "$a" "$b" >/dev/null
-					dd if=/dev/urandom of=${ckfile} bs=1 count=$(stat -c %s ${ckfile}) conv=notrunc >/dev/null 2>&1
-					rm ${ckfile};;
-				/*)
-					cryptsetup -d "$3" $4 $open "$a" "$b" >/dev/null;;
-				*)
-					echo "$3" | cryptsetup $4 $open "$a" "$b" >/dev/null;;
-			esac
-			if (( $? )); then
-				failed=1
-				stat_append "failed "
-			else
-				stat_append "ok "
-			fi
-			return $failed
-		}
 	crypto_unlocked=0
 	read_crypttab do_unlock && stat_done || stat_fail
 	# Maybe someone has LVM on an encrypted block device
-- 
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