On July 19, 2022 1:46 pm, Dominik Csapak wrote:
> Signed-off-by: Dominik Csapak <d.csa...@proxmox.com>
> ---
>  PVE/API2/Qemu.pm | 39 ++++++++++++++++++++++++++++++++++++---
>  1 file changed, 36 insertions(+), 3 deletions(-)
> 
> diff --git a/PVE/API2/Qemu.pm b/PVE/API2/Qemu.pm
> index 99b426e..aa7ddea 100644
> --- a/PVE/API2/Qemu.pm
> +++ b/PVE/API2/Qemu.pm
> @@ -26,6 +26,7 @@ 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;
> @@ -567,8 +568,12 @@ my $check_vm_create_usb_perm = sub {
>  
>      foreach my $opt (keys %{$param}) {
>       next if $opt !~ m/^usb\d+$/;
> +     my $device = parse_usb_device($param->{$opt});
>  
> -     if ($param->{$opt} =~ m/spice/) {
> +     if ($device->{spice}) {
> +         $rpcenv->check_vm_perm($authuser, $vmid, $pool, 
> ['VM.Config.HWType']);
> +     } elsif ($device->{mapped}) {
> +         $rpcenv->check_hw_perm($authuser, $device->{host}, 
> ['Hardware.Use']);

maybe I am overlooking something, but where does $device->{host} come 
from?

parse_usb_device (for a mapped USB device) looks up device in the 
hardware map, asserts it's valid (for the local node), and then either 
returns

{
  vendorid => $map->{vendor},
  productid => $map->{device},
  mapped => 1,
}

or the result of parse_usb_device($map->{path}), with 'mapped' set.

since the lookup in the map doesn't set a 'host' member, wouldn't 
$device->{host} always be undef for mapped devices? maybe this was 
wrongly copied from the PCI code, where the hostpci property string has 
a 'host' property (that with this series, also possibly contains a 
mapping entry ID)? or is this supposed to parse the property string, and 
use the host property from there?

>           $rpcenv->check_vm_perm($authuser, $vmid, $pool, 
> ['VM.Config.HWType']);
>       } else {
>           die "only root can set '$opt' config for real devices\n";
> @@ -1552,7 +1557,12 @@ 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 $device = PVE::QemuServer::USB::parse_usb_device($val);
> +                 my $host = parse_usb_device($device->{host});
> +                 if ($host->{spice}) {
> +                     $rpcenv->check_vm_perm($authuser, $vmid, undef, 
> ['VM.Config.HWType']);
> +                 } elsif ($host->{mapped}) {
> +                     $rpcenv->check_hw_perm($authuser, $device->{host}, 
> ['Hardware.Use']);

same question here..

>                       $rpcenv->check_vm_perm($authuser, $vmid, undef, 
> ['VM.Config.HWType']);
>                   } elsif ($authuser ne 'root@pam') {
>                       die "only root can delete '$opt' config for real 
> devices\n";
> @@ -1613,7 +1623,30 @@ 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})) {
> +                     $olddevice = 
> PVE::QemuServer::USB::parse_usb_device($conf->{$opt});
> +                     $oldhost = parse_usb_device($olddevice->{host});

and here

> +                 }
> +                 if (defined($oldhost)) {
> +                     if ($oldhost->{spice}) {
> +                         $rpcenv->check_vm_perm($authuser, $vmid, undef, 
> ['VM.Config.HWType']);
> +                     } elsif ($oldhost->{mapped}) {
> +                         $rpcenv->check_hw_perm($authuser, 
> $olddevice->{host}, ['Hardware.Use']);

and here

> +                         $rpcenv->check_vm_perm($authuser, $vmid, undef, 
> ['VM.Config.HWType']);
> +                     } elsif ($authuser ne 'root@pam') {
> +                         die "only root can modify '$opt' config for real 
> devices\n";
> +                     }
> +                 }
> +
> +                 my $newdevice = 
> PVE::QemuServer::USB::parse_usb_device($param->{$opt});
> +                 my $newhost = parse_usb_device($newdevice->{host});

and here

> +
> +                 if ($newhost->{spice}) {
> +                     $rpcenv->check_vm_perm($authuser, $vmid, undef, 
> ['VM.Config.HWType']);
> +                 } elsif ($newhost->{mapped}) {
> +                     $rpcenv->check_hw_perm($authuser, $newdevice->{host}, 
> ['Hardware.Use']);

and here

>                       $rpcenv->check_vm_perm($authuser, $vmid, undef, 
> ['VM.Config.HWType']);
>                   } elsif ($authuser ne 'root@pam') {
>                       die "only root can modify '$opt' config for real 
> devices\n";
> -- 
> 2.30.2
> 
> 
> 
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> pve-devel@lists.proxmox.com
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> 
> 
> 


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