[pve-devel] [PATCH v4 qemu-server 1/4] Move path_is_scsi to QemuServer/Drive.pm

[Hannes Duerr]

Prepare for introduction of new helper

Signed-off-by: Hannes Duerr <h.duerr at proxmox.com>
---
 PVE/QemuServer.pm       | 62 +----------------------------------------
 PVE/QemuServer/Drive.pm | 61 ++++++++++++++++++++++++++++++++++++++++
 2 files changed, 62 insertions(+), 61 deletions(-)

diff --git a/PVE/QemuServer.pm b/PVE/QemuServer.pm
index c465fb6..294702d 100644
--- a/PVE/QemuServer.pm
+++ b/PVE/QemuServer.pm
@@ -53,7 +53,7 @@ use PVE::QemuServer::Helpers qw(config_aware_timeout min_version windows_version
 use PVE::QemuServer::Cloudinit;
 use PVE::QemuServer::CGroup;
 use PVE::QemuServer::CPUConfig qw(print_cpu_device get_cpu_options);
-use PVE::QemuServer::Drive qw(is_valid_drivename drive_is_cloudinit drive_is_cdrom drive_is_read_only parse_drive print_drive);
+use PVE::QemuServer::Drive qw(is_valid_drivename drive_is_cloudinit drive_is_cdrom drive_is_read_only parse_drive print_drive path_is_scsi);
 use PVE::QemuServer::Machine;
 use PVE::QemuServer::Memory qw(get_current_memory);
 use PVE::QemuServer::Monitor qw(mon_cmd);
@@ -1342,66 +1342,6 @@ sub pve_verify_hotplug_features {
     die "unable to parse hotplug option\n";
 }
 
-sub scsi_inquiry {
-    my($fh, $noerr) = @_;
-
-    my $SG_IO = 0x2285;
-    my $SG_GET_VERSION_NUM = 0x2282;
-
-    my $versionbuf = "\x00" x 8;
-    my $ret = ioctl($fh, $SG_GET_VERSION_NUM, $versionbuf);
-    if (!$ret) {
-	die "scsi ioctl SG_GET_VERSION_NUM failoed - $!\n" if !$noerr;
-	return;
-    }
-    my $version = unpack("I", $versionbuf);
-    if ($version < 30000) {
-	die "scsi generic interface too old\n"  if !$noerr;
-	return;
-    }
-
-    my $buf = "\x00" x 36;
-    my $sensebuf = "\x00" x 8;
-    my $cmd = pack("C x3 C x1", 0x12, 36);
-
-    # see /usr/include/scsi/sg.h
-    my $sg_io_hdr_t = "i i C C s I P P P I I i P C C C C S S i I I";
-
-    my $packet = pack(
-	$sg_io_hdr_t, ord('S'), -3, length($cmd), length($sensebuf), 0, length($buf), $buf, $cmd, $sensebuf, 6000
-    );
-
-    $ret = ioctl($fh, $SG_IO, $packet);
-    if (!$ret) {
-	die "scsi ioctl SG_IO failed - $!\n" if !$noerr;
-	return;
-    }
-
-    my @res = unpack($sg_io_hdr_t, $packet);
-    if ($res[17] || $res[18]) {
-	die "scsi ioctl SG_IO status error - $!\n" if !$noerr;
-	return;
-    }
-
-    my $res = {};
-    $res->@{qw(type removable vendor product revision)} = unpack("C C x6 A8 A16 A4", $buf);
-
-    $res->{removable} = $res->{removable} & 128 ? 1 : 0;
-    $res->{type} &= 0x1F;
-
-    return $res;
-}
-
-sub path_is_scsi {
-    my ($path) = @_;
-
-    my $fh = IO::File->new("+<$path") || return;
-    my $res = scsi_inquiry($fh, 1);
-    close($fh);
-
-    return $res;
-}
-
 sub print_tabletdevice_full {
     my ($conf, $arch) = @_;
 
diff --git a/PVE/QemuServer/Drive.pm b/PVE/QemuServer/Drive.pm
index e24ba12..dce1398 100644
--- a/PVE/QemuServer/Drive.pm
+++ b/PVE/QemuServer/Drive.pm
@@ -17,6 +17,7 @@ drive_is_cdrom
 drive_is_read_only
 parse_drive
 print_drive
+path_is_scsi
 );
 
 our $QEMU_FORMAT_RE = qr/raw|cow|qcow|qcow2|qed|vmdk|cloop/;
@@ -760,4 +761,64 @@ sub resolve_first_disk {
     return;
 }
 
+sub scsi_inquiry {
+    my($fh, $noerr) = @_;
+
+    my $SG_IO = 0x2285;
+    my $SG_GET_VERSION_NUM = 0x2282;
+
+    my $versionbuf = "\x00" x 8;
+    my $ret = ioctl($fh, $SG_GET_VERSION_NUM, $versionbuf);
+    if (!$ret) {
+	die "scsi ioctl SG_GET_VERSION_NUM failoed - $!\n" if !$noerr;
+	return;
+    }
+    my $version = unpack("I", $versionbuf);
+    if ($version < 30000) {
+	die "scsi generic interface too old\n"  if !$noerr;
+	return;
+    }
+
+    my $buf = "\x00" x 36;
+    my $sensebuf = "\x00" x 8;
+    my $cmd = pack("C x3 C x1", 0x12, 36);
+
+    # see /usr/include/scsi/sg.h
+    my $sg_io_hdr_t = "i i C C s I P P P I I i P C C C C S S i I I";
+
+    my $packet = pack(
+	$sg_io_hdr_t, ord('S'), -3, length($cmd), length($sensebuf), 0, length($buf), $buf, $cmd, $sensebuf, 6000
+    );
+
+    $ret = ioctl($fh, $SG_IO, $packet);
+    if (!$ret) {
+	die "scsi ioctl SG_IO failed - $!\n" if !$noerr;
+	return;
+    }
+
+    my @res = unpack($sg_io_hdr_t, $packet);
+    if ($res[17] || $res[18]) {
+	die "scsi ioctl SG_IO status error - $!\n" if !$noerr;
+	return;
+    }
+
+    my $res = {};
+    $res->@{qw(type removable vendor product revision)} = unpack("C C x6 A8 A16 A4", $buf);
+
+    $res->{removable} = $res->{removable} & 128 ? 1 : 0;
+    $res->{type} &= 0x1F;
+
+    return $res;
+}
+
+sub path_is_scsi {
+    my ($path) = @_;
+
+    my $fh = IO::File->new("+<$path") || return;
+    my $res = scsi_inquiry($fh, 1);
+    close($fh);
+
+    return $res;
+}
+
 1;
-- 
2.39.2