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Mon, 21 Jun 2021 15:55:36 +0200 (CEST) From: Dominik Csapak To: pve-devel@lists.proxmox.com Date: Mon, 21 Jun 2021 15:55:23 +0200 Message-Id: <20210621135534.14807-11-d.csapak@proxmox.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20210621135534.14807-1-d.csapak@proxmox.com> References: <20210621135534.14807-1-d.csapak@proxmox.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-SPAM-LEVEL: Spam detection results: 0 AWL 0.818 Adjusted score from AWL reputation of From: address BAYES_00 -1.9 Bayes spam probability is 0 to 1% 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 qemu-server 4/7] PVE/API2/Qemu: add permission checks for mapped pci devices 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: Mon, 21 Jun 2021 13:56:07 -0000 Signed-off-by: Dominik Csapak --- PVE/API2/Qemu.pm | 54 ++++++++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 52 insertions(+), 2 deletions(-) diff --git a/PVE/API2/Qemu.pm b/PVE/API2/Qemu.pm index 98d11bc..36b8c31 100644 --- a/PVE/API2/Qemu.pm +++ b/PVE/API2/Qemu.pm @@ -24,6 +24,7 @@ use PVE::QemuServer; use PVE::QemuServer::Drive; use PVE::QemuServer::CPUConfig; use PVE::QemuServer::Monitor qw(mon_cmd); +use PVE::QemuServer::PCI; use PVE::QemuServer::USB qw(parse_usb_device); use PVE::QemuMigrate; use PVE::RPCEnvironment; @@ -370,6 +371,26 @@ my $check_vm_create_usb_perm = sub { return 1; }; +my $check_vm_create_hostpci_perm = sub { + my ($rpcenv, $authuser, $vmid, $pool, $param) = @_; + + return 1 if $authuser eq 'root@pam'; + + foreach my $opt (keys %{$param}) { + next if $opt !~ m/^hostpci\d+$/; + + my $device = PVE::JSONSchema::parse_property_string('pve-qm-hostpci', $param->{$opt}); + if ($device->{host} !~ m/:/) { + $rpcenv->check_hw_perm($authuser, $device->{host}, ['Hardware.Use']); + $rpcenv->check_vm_perm($authuser, $vmid, $pool, ['VM.Config.HWType']); + } else { + die "only root can set '$opt' config for non-mapped devices\n"; + } + } + + return 1; +}; + my $check_vm_modify_config_perm = sub { my ($rpcenv, $authuser, $vmid, $pool, $key_list) = @_; @@ -380,7 +401,7 @@ my $check_vm_modify_config_perm = sub { # else, as there the permission can be value dependend next if PVE::QemuServer::is_valid_drivename($opt); next if $opt eq 'cdrom'; - next if $opt =~ m/^(?:unused|serial|usb)\d+$/; + next if $opt =~ m/^(?:unused|serial|usb|hostpci)\d+$/; if ($cpuoptions->{$opt} || $opt =~ m/^numa\d+$/) { @@ -408,7 +429,7 @@ my $check_vm_modify_config_perm = sub { # also needs privileges on the storage, that will be checked later $rpcenv->check_vm_perm($authuser, $vmid, $pool, ['VM.Config.Disk', 'VM.PowerMgmt' ]); } else { - # catches hostpci\d+, args, lock, etc. + # catches args, lock, etc. # new options will be checked here die "only root can set '$opt' config\n"; } @@ -617,6 +638,7 @@ __PACKAGE__->register_method({ &$check_vm_create_serial_perm($rpcenv, $authuser, $vmid, $pool, $param); &$check_vm_create_usb_perm($rpcenv, $authuser, $vmid, $pool, $param); + &$check_vm_create_hostpci_perm($rpcenv, $authuser, $vmid, $pool, $param); &$check_cpu_model_access($rpcenv, $authuser, $param); @@ -1336,6 +1358,16 @@ my $update_vm_api = sub { } PVE::QemuConfig->add_to_pending_delete($conf, $opt, $force); PVE::QemuConfig->write_config($vmid, $conf); + } elsif ($opt =~ m/^hostpci\d+$/) { + my $olddevice = PVE::JSONSchema::parse_property_string('pve-qm-hostpci', $val); + if ($olddevice->{host} !~ m/:/) { + $rpcenv->check_hw_perm($authuser, $olddevice->{host}, ['Hardware.Use']); + $rpcenv->check_vm_perm($authuser, $vmid, undef, ['VM.Config.HWType']); + } elsif ($authuser ne 'root@pam') { + die "only root can set '$opt' config for non-mapped devices\n"; + } + PVE::QemuConfig->add_to_pending_delete($conf, $opt, $force); + PVE::QemuConfig->write_config($vmid, $conf); } else { PVE::QemuConfig->add_to_pending_delete($conf, $opt, $force); PVE::QemuConfig->write_config($vmid, $conf); @@ -1397,6 +1429,24 @@ my $update_vm_api = sub { } elsif ($authuser ne 'root@pam') { die "only root can modify '$opt' config for real devices\n"; } + + $conf->{pending}->{$opt} = $param->{$opt}; + } elsif ($opt =~ m/^hostpci\d+$/) { + my $olddevice; + if (defined($conf->{$opt})) { + $olddevice = PVE::JSONSchema::parse_property_string('pve-qm-hostpci', $conf->{$opt}); + } + my $newdevice = PVE::JSONSchema::parse_property_string('pve-qm-hostpci', $param->{$opt}); + if ((!defined($olddevice) || $olddevice->{host} !~ m/:/) && $newdevice->{host} !~ m/:/) { + if (defined($olddevice)) { + $rpcenv->check_hw_perm($authuser, $olddevice->{host}, ['Hardware.Use']); + } + $rpcenv->check_hw_perm($authuser, $newdevice->{host}, ['Hardware.Use']); + $rpcenv->check_vm_perm($authuser, $vmid, undef, ['VM.Config.HWType']); + } elsif ($authuser ne 'root@pam') { + die "only root can set '$opt' config for non-mapped devices\n"; + } + PVE::QemuServer::PCI::parse_hostpci($param->{$opt}); $conf->{pending}->{$opt} = $param->{$opt}; } else { $conf->{pending}->{$opt} = $param->{$opt}; -- 2.20.1