From b51bf4a5db6b8f50d567b124b7f733a4748a9a62 Mon Sep 17 00:00:00 2001
From: Mystery Man <unknown@mandriva.org>
Date: Fri, 1 Jul 2005 04:51:12 +0000
Subject: This commit was manufactured by cvs2svn to create branch
 'MDK-10_2-update'.

---
 perl-install/fs/dmraid.pm | 160 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 160 insertions(+)
 create mode 100644 perl-install/fs/dmraid.pm

diff --git a/perl-install/fs/dmraid.pm b/perl-install/fs/dmraid.pm
new file mode 100644
index 000000000..7bc5d9162
--- /dev/null
+++ b/perl-install/fs/dmraid.pm
@@ -0,0 +1,160 @@
+package fs::dmraid; # $Id$
+
+use diagnostics;
+use strict;
+
+#-######################################################################################
+#- misc imports
+#-######################################################################################
+use common;
+use modules;
+use devices;
+use fs::type;
+use fs::wild_device;
+use run_program;
+
+
+init() or log::l("dmraid::init failed");
+
+sub init() {
+    whereis_binary('dmraid') or die "dmraid not installed";
+
+    eval { modules::load('dm-mirror') };
+    devices::init_device_mapper();
+    if ($::isInstall) {
+	call_dmraid('-ay');
+    }
+    1;
+}
+
+#- call_dmraid is overloaded when debugging, see the end of this file
+sub call_dmraid {
+    my ($option) = @_;
+    run_program::get_stdout('dmraid', $option);
+}
+
+sub check {
+    my ($in) = @_;
+
+    $in->do_pkgs->ensure_binary_is_installed('dmraid', 'dmraid') or return;
+    init();
+    1;
+}
+
+sub _raid_devices_raw() {
+    map {
+	chomp;
+	my %l; @l{qw(pv format vg level status size)} = split(':');
+	\%l;
+    } call_dmraid('-ccr');
+}
+
+sub _raid_devices() {
+    my @l = _raid_devices_raw();
+    my %vg2pv; push @{$vg2pv{$_->{vg}}}, delete $_->{pv} foreach @l;
+    map {
+	delete $_->{size}; #- now irrelevant
+	$_->{disks} = $vg2pv{$_->{vg}};
+	$_;
+    } uniq_ { $_->{vg} } @l;
+}
+
+sub _sets_raw() {
+    map {
+	chomp;
+	my %l; @l{qw(name size stride level status subsets devs spares)} = split(':');
+	\%l;
+    } call_dmraid('-ccs');
+}
+
+sub _sets() {
+    my @sets = _sets_raw();
+    my @raid_devices = _raid_devices();
+    foreach (@sets) {
+	my $name = $_->{name};
+	my @l = grep { begins_with($name, $_->{vg}) } @raid_devices;
+	if (@l) {
+	    log::l("ERROR: multiple match for set $name: " . join(' ', map { $_->{vg} } @l)) if @l > 1;
+	    my ($raid) = @l;
+	    add2hash($_, $raid);
+	} else {
+	    log::l("ERROR: no matching raid devices for set $name");
+	}
+    }
+    @sets;
+}
+
+sub vgs() {
+    map {
+	my $dev = "mapper/$_->{name}";
+	my $vg = fs::wild_device::to_subpart("/dev/$dev");
+	add2hash($vg, { media_type => 'hd', prefix => $dev, bus => "dmraid_$_->{format}", disks => $_->{disks} });
+
+	#- device should exist, created by dmraid(8) using libdevmapper
+	#- if it doesn't, we suppose it's not in use
+	if_(-e "/dev/$dev", $vg); 
+
+    } grep { $_->{status} eq 'ok' } _sets();
+}
+
+if ($ENV{DRAKX_DEBUG_DMRAID}) {
+    eval(<<'EOF');
+    my %debug_data = (
+    
+     isw => {
+    
+      # dmraid -s ####################
+      # *** Group superset isw_ffafgbdhi
+      # --> Active Subset
+      # name   : isw_ffafgbdhi_toto
+      # size   : 234441216
+      # stride : 256
+      # type   : mirror
+      # status : ok
+      # subsets: 0
+      # devs   : 2
+      # spares : 0
+    
+      '-ccs' => "isw_ffafgbdhi_toto:234441216:256:mirror:ok:0:2:0\n",
+    
+      # dmraid -r ####################
+      #/dev/sda: isw, "isw_ffafgbdhi", GROUP, ok, 488397166 sectors, data@ 0
+      #/dev/sdb: isw, "isw_ffafgbdhi", GROUP, ok, 234441646 sectors, data@ 0
+    
+      '-ccr' => "/dev/sda:isw:isw_ffafgbdhi:GROUP:ok:488397166:0\n" .
+                "/dev/sdb:isw:isw_ffafgbdhi:GROUP:ok:234441646:0\n",
+     },
+    
+     pdc => {
+      # dmraid -s ####################
+      # *** Active Set
+      # name   : pdc_bcefbiigfg
+      # size   : 80043200
+      # stride : 128
+      # type   : mirror
+      # status : ok
+      # subsets: 0
+      # devs   : 2
+      # spares : 0
+    
+      '-ccs' => "pdc_bcefbiigfg:80043200:128:mirror:ok:0:2:0\n",
+    
+      # dmraid -r ####################
+      # /dev/sda: pdc, "pdc_bcefbiigfg", mirror, ok, 80043200 sectors, data@ 0
+      # /dev/sdb: pdc, "pdc_bcefbiigfg", mirror, ok, 80043200 sectors, data@ 0
+    
+      '-ccr' => "/dev/sda:pdc:pdc_bcefbiigfg:mirror:ok:80043200:0\n" .
+                "/dev/sdb:pdc:pdc_bcefbiigfg:mirror:ok:80043200:0\n",
+      },
+    
+    );
+    
+    *call_dmraid = sub {
+        my ($option) = @_;
+        my $s = $debug_data{$ENV{DRAKX_DEBUG_DMRAID}}{$option} or return;
+        split("\n", $s);
+    };
+EOF
+}
+
+1;
-- 
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