From b62b2f3dc75d15d570344656f950502afeb2dc8d Mon Sep 17 00:00:00 2001
From: Pascal Rigaux <pixel@mandriva.com>
Date: Tue, 15 Jan 2002 21:18:00 +0000
Subject: encrypted filesystem handling: - using losetup - add "Options" for
 partitions in diskdrake (expert mode)

---
 perl-install/devices.pm | 35 ++++++++++++++++++++++++++++-------
 1 file changed, 28 insertions(+), 7 deletions(-)

(limited to 'perl-install/devices.pm')

diff --git a/perl-install/devices.pm b/perl-install/devices.pm
index 7228f9410..4ccac4901 100644
--- a/perl-install/devices.pm
+++ b/perl-install/devices.pm
@@ -32,17 +32,38 @@ sub size($) {
     $low + 1;
 }
 
+sub del_loop {
+    my ($dev) = @_;
+    run_program::run("losetup", "-d", $dev);
+}
+sub find_free_loop {
+    foreach (0..7) {
+	my $dev = make("loop$_");
+	{
+	    local *F;
+	    sysopen F, $dev, 2 or next;
+	    !ioctl(F, c::LOOP_GET_STATUS(), my $tmp) && $! == 6 or next; #- 6 == ENXIO
+	    close F;
+	}
+	return $dev;
+    }
+    die "no free loop found";
+}
 sub set_loop {
-    my ($file) = @_;
+    my ($file, $encrypt_key, $encryption) = @_;
+    my $dev = find_free_loop();
 
-    foreach (0..7) {
+    if ($encrypt_key && $encryption) {
+	my $cmd = "losetup -p 0 -e $encryption $dev $file";
+	log::l("calling $cmd");
 	local *F;
-	my $dev = make("loop$_");
-	sysopen F, $dev, 2 or next;
-	!ioctl(F, c::LOOP_GET_STATUS(), my $tmp) && $! == 6 or next; #- 6 == ENXIO
-	log::l("trying with loop $dev");
-	return c::set_loop(fileno F, $file) && $dev;
+	open F, "|$cmd";
+	print F $encrypt_key;
+	close F or die "losetup failed";
+    } else {
+	run_program::run("losetup", $dev, $file) or return;
     }
+    $dev;
 }
 
 sub entry {
-- 
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