From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from firstgate.proxmox.com (firstgate.proxmox.com [IPv6:2a01:7e0:0:424::9]) by lore.proxmox.com (Postfix) with ESMTPS id 5176D1FF163 for ; Thu, 19 Dec 2024 11:44:39 +0100 (CET) Received: from firstgate.proxmox.com (localhost [127.0.0.1]) by firstgate.proxmox.com (Proxmox) with ESMTP id D9EF5191C; Thu, 19 Dec 2024 11:43:56 +0100 (CET) From: Fiona Ebner To: pve-devel@lists.proxmox.com Date: Thu, 19 Dec 2024 11:43:11 +0100 Message-Id: <20241219104316.35329-9-f.ebner@proxmox.com> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20241219104316.35329-1-f.ebner@proxmox.com> References: <20241219104316.35329-1-f.ebner@proxmox.com> MIME-Version: 1.0 X-SPAM-LEVEL: Spam detection results: 0 AWL -0.052 Adjusted score from AWL reputation of From: address BAYES_00 -1.9 Bayes spam probability is 0 to 1% DMARC_MISSING 0.1 Missing DMARC policy KAM_DMARC_STATUS 0.01 Test Rule for DKIM or SPF Failure with Strict Alignment SPF_HELO_NONE 0.001 SPF: HELO does not publish an SPF Record SPF_PASS -0.001 SPF: sender matches SPF record Subject: [pve-devel] [PATCH storage v3 08/13] iscsi direct plugin: support volume export X-BeenThere: pve-devel@lists.proxmox.com X-Mailman-Version: 2.1.29 Precedence: list List-Id: Proxmox VE development discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: Proxmox VE development discussion Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: pve-devel-bounces@lists.proxmox.com Sender: "pve-devel" Signed-off-by: Fiona Ebner --- src/PVE/Storage/ISCSIDirectPlugin.pm | 63 ++++++++++++++++++++++++++++ 1 file changed, 63 insertions(+) diff --git a/src/PVE/Storage/ISCSIDirectPlugin.pm b/src/PVE/Storage/ISCSIDirectPlugin.pm index eb329d4..0aca4b6 100644 --- a/src/PVE/Storage/ISCSIDirectPlugin.pm +++ b/src/PVE/Storage/ISCSIDirectPlugin.pm @@ -2,9 +2,12 @@ package PVE::Storage::ISCSIDirectPlugin; use strict; use warnings; + use IO::File; +use JSON qw(decode_json); use HTTP::Request; use LWP::UserAgent; + use PVE::Tools qw(run_command file_read_firstline trim dir_glob_regex dir_glob_foreach); use PVE::Storage::Plugin; use PVE::JSONSchema qw(get_standard_option); @@ -252,4 +255,64 @@ sub volume_has_feature { return undef; } +sub volume_export_formats { + my ($class, $scfg, $storeid, $volname, $snapshot, $base_snapshot, $with_snapshots) = @_; + + return () if defined($snapshot); # not supported + return () if defined($base_snapshot); # not supported + return () if $with_snapshots; # not supported + return ('raw+size'); +} + +sub volume_export { + my ( + $class, + $scfg, + $storeid, + $fh, + $volname, + $format, + $snapshot, + $base_snapshot, + $with_snapshots, + ) = @_; + + die "volume export format $format not available for $class\n" if $format ne 'raw+size'; + die "cannot export volumes together with their snapshots in $class\n" if $with_snapshots; + die "cannot export an incremental stream in $class\n" if defined($base_snapshot); + die "cannot export a snapshot in $class\n" if defined($snapshot); + + my ($file) = $class->path($scfg, $volname, $storeid, $snapshot); + + my $json = ''; + run_command( + ['/usr/bin/qemu-img', 'info', '-f', 'raw', '--output=json', $file], + outfunc => sub { $json .= shift }, + ); + die "failed to query size information for '$file' with qemu-img\n" if !$json; + my $info = eval { decode_json($json) }; + die "could not parse qemu-img info command output for '$file' - $@\n" if $@; + + my ($size) = ($info->{'virtual-size'} =~ /^(\d+)$/); # untaint + die "size '$size' not an integer\n" if !defined($size); + $size = int($size); # coerce back from string + + PVE::Storage::Plugin::write_common_header($fh, $size); + run_command( + ['qemu-img', 'dd', 'bs=64k', "if=$file", '-f', 'raw', '-O', 'raw'], + output => '>&'.fileno($fh), + ); + return; +} + +sub volume_import_formats { + my ($class, $scfg, $storeid, $volname, $snapshot, $base_snapshot, $with_snapshots) = @_; + + return (); +} + +sub volume_import { + die "volume import is not possible on iscsi storage\n"; +} + 1; -- 2.39.5 _______________________________________________ pve-devel mailing list pve-devel@lists.proxmox.com https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-devel