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Thu, 25 May 2023 12:17:54 +0200 (CEST) From: Dominik Csapak To: pve-devel@lists.proxmox.com Date: Thu, 25 May 2023 12:17:46 +0200 Message-Id: <20230525101753.2078811-5-d.csapak@proxmox.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20230525101753.2078811-1-d.csapak@proxmox.com> References: <20230525101753.2078811-1-d.csapak@proxmox.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-SPAM-LEVEL: Spam detection results: 0 AWL 0.015 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 T_SCC_BODY_TEXT_LINE -0.01 - Subject: [pve-devel] [PATCH qemu-server v4 1/6] enable cluster mapped USB devices for guests 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: , X-List-Received-Date: Thu, 25 May 2023 10:17:56 -0000 this patch allows configuring usb devices that are mapped via cluster resource mapping when the user has 'Resource.Use' on the ACL path '/resource/usb/{ID}' (in addition to the usual required vm config privileges) for now, this is only valid if there is exactly one mapping for the host, since we don't track passed through usb devices yet Signed-off-by: Dominik Csapak --- PVE/API2/Qemu.pm | 40 +++++++++++++++++++++++++++++++++++++--- PVE/QemuServer.pm | 4 ++++ PVE/QemuServer/USB.pm | 22 +++++++++++++++++++++- 3 files changed, 62 insertions(+), 4 deletions(-) diff --git a/PVE/API2/Qemu.pm b/PVE/API2/Qemu.pm index 587bb222..cedddf97 100644 --- a/PVE/API2/Qemu.pm +++ b/PVE/API2/Qemu.pm @@ -32,6 +32,7 @@ use PVE::QemuServer::Drive; use PVE::QemuServer::ImportDisk; use PVE::QemuServer::Monitor qw(mon_cmd); use PVE::QemuServer::Machine; +use PVE::QemuServer::USB qw(parse_usb_device); use PVE::QemuMigrate; use PVE::RPCEnvironment; use PVE::AccessControl; @@ -590,8 +591,13 @@ my $check_vm_create_usb_perm = sub { foreach my $opt (keys %{$param}) { next if $opt !~ m/^usb\d+$/; + my $entry = PVE::JSONSchema::parse_property_string('pve-qm-usb', $param->{$opt}); + my $device = parse_usb_device($entry->{host}); - if ($param->{$opt} =~ m/spice/) { + if ($device->{spice}) { + $rpcenv->check_vm_perm($authuser, $vmid, $pool, ['VM.Config.HWType']); + } elsif ($device->{mapped}) { + $rpcenv->check_full($authuser, "/resource/usb/$entry->{host}", ['Resource.Use']); $rpcenv->check_vm_perm($authuser, $vmid, $pool, ['VM.Config.HWType']); } else { die "only root can set '$opt' config for real devices\n"; @@ -1696,7 +1702,12 @@ my $update_vm_api = sub { PVE::QemuConfig->add_to_pending_delete($conf, $opt, $force); PVE::QemuConfig->write_config($vmid, $conf); } elsif ($opt =~ m/^usb\d+$/) { - if ($val =~ m/spice/) { + my $device = PVE::JSONSchema::parse_property_string('pve-qm-usb', $val); + my $host = parse_usb_device($device->{host}); + if ($host->{spice}) { + $rpcenv->check_vm_perm($authuser, $vmid, undef, ['VM.Config.HWType']); + } elsif ($host->{mapped}) { + $rpcenv->check_full($authuser, "/resource/usb/$device->{host}", ['Resource.Use']); $rpcenv->check_vm_perm($authuser, $vmid, undef, ['VM.Config.HWType']); } elsif ($authuser ne 'root@pam') { die "only root can delete '$opt' config for real devices\n"; @@ -1761,7 +1772,30 @@ my $update_vm_api = sub { } $conf->{pending}->{$opt} = $param->{$opt}; } elsif ($opt =~ m/^usb\d+/) { - if ((!defined($conf->{$opt}) || $conf->{$opt} =~ m/spice/) && $param->{$opt} =~ m/spice/) { + my $olddevice; + my $oldhost; + if (defined($conf->{$opt})) { + $olddevice = PVE::JSONSchema::parse_property_string('pve-qm-usb', $conf->{$opt}); + $oldhost = parse_usb_device($olddevice->{host}); + } + if (defined($oldhost)) { + if ($oldhost->{spice}) { + $rpcenv->check_vm_perm($authuser, $vmid, undef, ['VM.Config.HWType']); + } elsif ($oldhost->{mapped}) { + $rpcenv->check_full($authuser, "/resource/usb/$olddevice->{host}", ['Resource.Use']); + $rpcenv->check_vm_perm($authuser, $vmid, undef, ['VM.Config.HWType']); + } elsif ($authuser ne 'root@pam') { + die "only root can modify '$opt' config for real devices\n"; + } + } + + my $newdevice = PVE::JSONSchema::parse_property_string('pve-qm-usb', $param->{$opt}); + my $newhost = parse_usb_device($newdevice->{host}); + + if ($newhost->{spice}) { + $rpcenv->check_vm_perm($authuser, $vmid, undef, ['VM.Config.HWType']); + } elsif ($newhost->{mapped}) { + $rpcenv->check_full($authuser, "/resource/usb/$newdevice->{host}", ['Resource.Use']); $rpcenv->check_vm_perm($authuser, $vmid, undef, ['VM.Config.HWType']); } elsif ($authuser ne 'root@pam') { die "only root can modify '$opt' config for real devices\n"; diff --git a/PVE/QemuServer.pm b/PVE/QemuServer.pm index ab33aa37..bdc4f3d9 100644 --- a/PVE/QemuServer.pm +++ b/PVE/QemuServer.pm @@ -1090,6 +1090,8 @@ The Host USB device or port or the value 'spice'. HOSTUSBDEVICE syntax is: You can use the 'lsusb -t' command to list existing usb devices. +Alternatively, you can used an ID of a mapped usb device. + NOTE: This option allows direct access to host hardware. So it is no longer possible to migrate such machines - use with special care. @@ -1106,6 +1108,8 @@ EODESCR }, }; +PVE::JSONSchema::register_format('pve-qm-usb', $usb_fmt); + my $usbdesc = { optional => 1, type => 'string', format => $usb_fmt, diff --git a/PVE/QemuServer/USB.pm b/PVE/QemuServer/USB.pm index 686461cc..b764ce39 100644 --- a/PVE/QemuServer/USB.pm +++ b/PVE/QemuServer/USB.pm @@ -6,6 +6,7 @@ use PVE::QemuServer::PCI qw(print_pci_addr); use PVE::QemuServer::Machine; use PVE::QemuServer::Helpers qw(min_version windows_version); use PVE::JSONSchema; +use PVE::Resource::USB; use base 'Exporter'; our @EXPORT_OK = qw( @@ -31,7 +32,26 @@ sub parse_usb_device { } elsif ($value =~ m/^spice$/i) { $res->{spice} = 1; } else { - return; + # we have no ordinary usb device, must be a mapping + my $devices = PVE::Resource::USB::find_on_current_node($value); + return undef if scalar($devices->@*) != 1; + eval { + PVE::Resource::USB::assert_valid($value, $devices->[0]); + }; + if (my $err = $@) { + warn "USB Mapping invalid (hardware probably changed): $err\n"; + return; + } + + my $device = $devices->[0]; + + if ($device->{path}) { + $res = parse_usb_device($device->{path}); + } else { + $res = parse_usb_device($device->{id}); + } + + $res->{mapped} = 1; } return $res; -- 2.30.2