analogous to the changes in container.

we now allow users with SU privilege to edit real device configurations,
provided that they also have the necessary VM privileges.

note that root@pam is still able to do everything as usual

---
 PVE/API2/Qemu.pm | 119 +++++++++++++++++++++++++++++------------------
 1 file changed, 73 insertions(+), 46 deletions(-)

diff --git a/PVE/API2/Qemu.pm b/PVE/API2/Qemu.pm
index 6992f6f..9d403b4 100644
--- a/PVE/API2/Qemu.pm
+++ b/PVE/API2/Qemu.pm
@@ -352,7 +352,7 @@ my $cloudinitoptions = {
 my $check_vm_create_serial_perm = sub {
     my ($rpcenv, $authuser, $vmid, $pool, $param) = @_;
 
-    return 1 if $authuser eq 'root@pam';
+    return 1 if $authuser eq 'root@pam' || $rpcenv->check($authuser, 
"/vms/$vmid", ['SuperUser'], 1);
 
     foreach my $opt (keys %{$param}) {
        next if $opt !~ m/^serial\d+$/;
@@ -370,7 +370,7 @@ my $check_vm_create_serial_perm = sub {
 my $check_vm_create_usb_perm = sub {
     my ($rpcenv, $authuser, $vmid, $pool, $param) = @_;
 
-    return 1 if $authuser eq 'root@pam';
+    return 1 if $authuser eq 'root@pam' || $rpcenv->check($authuser, 
"/vms/$vmid", ['SuperUser'], 1);
 
     foreach my $opt (keys %{$param}) {
        next if $opt !~ m/^usb\d+$/;
@@ -388,7 +388,7 @@ my $check_vm_create_usb_perm = sub {
 my $check_vm_modify_config_perm = sub {
     my ($rpcenv, $authuser, $vmid, $pool, $key_list) = @_;
 
-    return 1 if $authuser eq 'root@pam';
+    return 1 if $authuser eq 'root@pam' || $rpcenv->check($authuser, 
"/vms/$vmid", ['SuperUser'], 1);
 
     foreach my $opt (@$key_list) {
        # some checks (e.g., disk, serial port, usb) need to be done somewhere
@@ -1117,9 +1117,10 @@ my $update_vm_api  = sub {
        push @paramarr, "-$key", $value;
     }
 
+    my $is_superuser = $authuser eq 'root@pam' || $rpcenv->check($authuser, 
"/vms/$vmid", ['SuperUser'], 1);
     my $skiplock = extract_param($param, 'skiplock');
-    raise_param_exc({ skiplock => "Only root may use this option." })
-       if $skiplock && $authuser ne 'root@pam';
+    raise_param_exc({ skiplock => "Only superusers may use this option." })
+       if $skiplock && !$is_superuser;
 
     my $delete_str = extract_param($param, 'delete');
 
@@ -1340,16 +1341,18 @@ my $update_vm_api  = sub {
                } elsif ($opt =~ m/^serial\d+$/) {
                    if ($val eq 'socket') {
                        $rpcenv->check_vm_perm($authuser, $vmid, undef, 
['VM.Config.HWType']);
-                   } elsif ($authuser ne 'root@pam') {
-                       die "only root can delete '$opt' config for real 
devices\n";
+                   } elsif (!$is_superuser) {
+                       die "only superusers can delete '$opt' config for real 
devices\n"
+                           if !$rpcenv->check_vm_perm($authuser, $vmid, undef, 
['VM.Config.HWType']);
                    }
                    PVE::QemuConfig->add_to_pending_delete($conf, $opt, $force);
                    PVE::QemuConfig->write_config($vmid, $conf);
                } elsif ($opt =~ m/^usb\d+$/) {
                    if ($val =~ m/spice/) {
                        $rpcenv->check_vm_perm($authuser, $vmid, undef, 
['VM.Config.HWType']);
-                   } elsif ($authuser ne 'root@pam') {
-                       die "only root can delete '$opt' config for real 
devices\n";
+                   } elsif (!$is_superuser) {
+                       die "only superusers can delete '$opt' config for real 
devices\n"
+                           if !$rpcenv->check_vm_perm($authuser, $vmid, undef, 
['VM.Config.HWType']);
                    }
                    PVE::QemuConfig->add_to_pending_delete($conf, $opt, $force);
                    PVE::QemuConfig->write_config($vmid, $conf);
@@ -1392,15 +1395,17 @@ my $update_vm_api  = sub {
                } elsif ($opt =~ m/^serial\d+/) {
                    if ((!defined($conf->{$opt}) || $conf->{$opt} eq 'socket') 
&& $param->{$opt} eq 'socket') {
                        $rpcenv->check_vm_perm($authuser, $vmid, undef, 
['VM.Config.HWType']);
-                   } elsif ($authuser ne 'root@pam') {
-                       die "only root can modify '$opt' config for real 
devices\n";
+                   } elsif (!$is_superuser) {
+                       die "only superuser can modify '$opt' config for real 
devices\n"
+                           if !$rpcenv->check_vm_perm($authuser, $vmid, undef, 
['VM.Config.HWType']);
                    }
                    $conf->{pending}->{$opt} = $param->{$opt};
                } elsif ($opt =~ m/^usb\d+/) {
                    if ((!defined($conf->{$opt}) || $conf->{$opt} =~ m/spice/) 
&& $param->{$opt} =~ m/spice/) {
                        $rpcenv->check_vm_perm($authuser, $vmid, undef, 
['VM.Config.HWType']);
-                   } elsif ($authuser ne 'root@pam') {
-                       die "only root can modify '$opt' config for real 
devices\n";
+                   } elsif (!$is_superuser) {
+                       die "only superuser can modify '$opt' config for real 
devices\n"
+                           if !$rpcenv->check_vm_perm($authuser, $vmid, undef, 
['VM.Config.HWType']);
                    }
                    $conf->{pending}->{$opt} = $param->{$opt};
                } else {
@@ -1644,9 +1649,11 @@ __PACKAGE__->register_method({
        my $authuser = $rpcenv->get_user();
        my $vmid = $param->{vmid};
 
+       my $is_superuser = $authuser eq 'root@pam' || $rpcenv->check($authuser, 
"/vms/$vmid", ['SuperUser'], 1);
+
        my $skiplock = $param->{skiplock};
-       raise_param_exc({ skiplock => "Only root may use this option." })
-           if $skiplock && $authuser ne 'root@pam';
+       raise_param_exc({ skiplock => "Only superusers may use this option." })
+           if $skiplock && !$is_superuser;
 
        my $early_checks = sub {
            # test if VM exists
@@ -2291,10 +2298,12 @@ __PACKAGE__->register_method({
        my $machine = extract_param($param, 'machine');
        my $force_cpu = extract_param($param, 'force-cpu');
 
+       my $is_superuser = $authuser eq 'root@pam' || $rpcenv->check($authuser, 
"/vms/$vmid", ['SuperUser'], 1);
+
        my $get_root_param = sub {
            my $value = extract_param($param, $_[0]);
-           raise_param_exc({ "$_[0]" => "Only root may use this option." })
-               if $value && $authuser ne 'root@pam';
+           raise_param_exc({ "$_[0]" => "Only superusers may use this option." 
})
+               if $value && !$is_superuser;
            return $value;
        };
 
@@ -2436,17 +2445,19 @@ __PACKAGE__->register_method({
        my $node = extract_param($param, 'node');
        my $vmid = extract_param($param, 'vmid');
 
+       my $is_superuser = $authuser eq 'root@pam' || $rpcenv->check($authuser, 
"/vms/$vmid", ['SuperUser'], 1);
+
        my $skiplock = extract_param($param, 'skiplock');
-       raise_param_exc({ skiplock => "Only root may use this option." })
-           if $skiplock && $authuser ne 'root@pam';
+       raise_param_exc({ skiplock => "Only superusers may use this option." })
+           if $skiplock && !$is_superuser;
 
        my $keepActive = extract_param($param, 'keepActive');
-       raise_param_exc({ keepActive => "Only root may use this option." })
-           if $keepActive && $authuser ne 'root@pam';
+       raise_param_exc({ keepActive => "Only superusers may use this option." 
})
+           if $keepActive && !$is_superuser;
 
        my $migratedfrom = extract_param($param, 'migratedfrom');
-       raise_param_exc({ migratedfrom => "Only root may use this option." })
-           if $migratedfrom && $authuser ne 'root@pam';
+       raise_param_exc({ migratedfrom => "Only superusers may use this 
option." })
+           if $migratedfrom && !$is_superuser;
 
 
        my $storecfg = PVE::Storage::config();
@@ -2513,9 +2524,11 @@ __PACKAGE__->register_method({
 
        my $vmid = extract_param($param, 'vmid');
 
+       my $is_superuser = $authuser eq 'root@pam' || $rpcenv->check($authuser, 
"/vms/$vmid", ['SuperUser'], 1);
+
        my $skiplock = extract_param($param, 'skiplock');
-       raise_param_exc({ skiplock => "Only root may use this option." })
-           if $skiplock && $authuser ne 'root@pam';
+       raise_param_exc({ skiplock => "Only superusers may use this option." })
+           if $skiplock && !$is_superuser;
 
        die "VM $vmid not running\n" if !PVE::QemuServer::check_running($vmid);
 
@@ -2580,13 +2593,15 @@ __PACKAGE__->register_method({
        my $node = extract_param($param, 'node');
        my $vmid = extract_param($param, 'vmid');
 
+       my $is_superuser = $authuser eq 'root@pam' || $rpcenv->check($authuser, 
"/vms/$vmid", ['SuperUser'], 1);
+
        my $skiplock = extract_param($param, 'skiplock');
-       raise_param_exc({ skiplock => "Only root may use this option." })
-           if $skiplock && $authuser ne 'root@pam';
+       raise_param_exc({ skiplock => "Only superusers may use this option." })
+           if $skiplock && !$is_superuser;
 
        my $keepActive = extract_param($param, 'keepActive');
-       raise_param_exc({ keepActive => "Only root may use this option." })
-           if $keepActive && $authuser ne 'root@pam';
+       raise_param_exc({ keepActive => "Only superusers may use this option." 
})
+           if $keepActive && !$is_superuser;
 
        my $storecfg = PVE::Storage::config();
 
@@ -2739,9 +2754,11 @@ __PACKAGE__->register_method({
 
        my $statestorage = extract_param($param, 'statestorage');
 
+       my $is_superuser = $authuser eq 'root@pam' || $rpcenv->check($authuser, 
"/vms/$vmid", ['SuperUser'], 1);
+
        my $skiplock = extract_param($param, 'skiplock');
-       raise_param_exc({ skiplock => "Only root may use this option." })
-           if $skiplock && $authuser ne 'root@pam';
+       raise_param_exc({ skiplock => "Only superusers may use this option." })
+           if $skiplock && !$is_superuser;
 
        die "VM $vmid not running\n" if !PVE::QemuServer::check_running($vmid);
 
@@ -2811,13 +2828,15 @@ __PACKAGE__->register_method({
 
        my $vmid = extract_param($param, 'vmid');
 
+       my $is_superuser = $authuser eq 'root@pam' || $rpcenv->check($authuser, 
"/vms/$vmid", ['SuperUser'], 1);
+
        my $skiplock = extract_param($param, 'skiplock');
-       raise_param_exc({ skiplock => "Only root may use this option." })
-           if $skiplock && $authuser ne 'root@pam';
+       raise_param_exc({ skiplock => "Only superusers may use this option." })
+           if $skiplock && !$is_superuser;
 
        my $nocheck = extract_param($param, 'nocheck');
-       raise_param_exc({ nocheck => "Only root may use this option." })
-           if $nocheck && $authuser ne 'root@pam';
+       raise_param_exc({ nocheck => "Only superusers may use this option." })
+           if $nocheck && !$is_superuser;
 
        my $to_disk_suspended;
        eval {
@@ -2883,9 +2902,11 @@ __PACKAGE__->register_method({
 
        my $vmid = extract_param($param, 'vmid');
 
+       my $is_superuser = $authuser eq 'root@pam' || $rpcenv->check($authuser, 
"/vms/$vmid", ['SuperUser'], 1);
+
        my $skiplock = extract_param($param, 'skiplock');
-       raise_param_exc({ skiplock => "Only root may use this option." })
-           if $skiplock && $authuser ne 'root@pam';
+       raise_param_exc({ skiplock => "Only superusers may use this option." })
+           if $skiplock && !$is_superuser;
 
        PVE::QemuServer::vm_sendkey($vmid, $skiplock, $param->{key});
 
@@ -3392,6 +3413,8 @@ __PACKAGE__->register_method({
 
        my $storecfg = PVE::Storage::config();
 
+       my $is_superuser = $authuser eq 'root@pam' || $rpcenv->check($authuser, 
"/vms/$vmid", ['SuperUser'], 1);
+
        my $move_updatefn =  sub {
            my $conf = PVE::QemuConfig->load_config($vmid);
            PVE::QemuConfig->check_lock($conf);
@@ -3856,7 +3879,7 @@ __PACKAGE__->register_method({
            },
            force => {
                type => 'boolean',
-               description => "Allow to migrate VMs which use local devices. 
Only root may use this option.",
+               description => "Allow to migrate VMs which use local devices. 
Only superusers may use this option.",
                optional => 1,
            },
            migration_type => {
@@ -3910,15 +3933,17 @@ __PACKAGE__->register_method({
 
        my $vmid = extract_param($param, 'vmid');
 
-       raise_param_exc({ force => "Only root may use this option." })
-           if $param->{force} && $authuser ne 'root@pam';
+       my $is_superuser = $authuser eq 'root@pam' || $rpcenv->check($authuser, 
"/vms/$vmid", ['SuperUser'], 1);
 
-       raise_param_exc({ migration_type => "Only root may use this option." })
-           if $param->{migration_type} && $authuser ne 'root@pam';
+       raise_param_exc({ force => "Only superusers may use this option." })
+           if $param->{force} && !$is_superuser;
+
+       raise_param_exc({ migration_type => "Only superusers may use this 
option." })
+           if $param->{migration_type} && !$is_superuser;
 
        # allow root only until better network permissions are available
-       raise_param_exc({ migration_network => "Only root may use this option." 
})
-           if $param->{migration_network} && $authuser ne 'root@pam';
+       raise_param_exc({ migration_network => "Only superusers may use this 
option." })
+           if $param->{migration_network} && !$is_superuser;
 
        # test if VM exists
        my $conf = PVE::QemuConfig->load_config($vmid);
@@ -4098,9 +4123,11 @@ __PACKAGE__->register_method({
 
        my $sizestr = extract_param($param, 'size');
 
+       my $is_superuser = $authuser eq 'root@pam' || $rpcenv->check($authuser, 
"/vms/$vmid", ['SuperUser'], 1);
+
        my $skiplock = extract_param($param, 'skiplock');
-        raise_param_exc({ skiplock => "Only root may use this option." })
-            if $skiplock && $authuser ne 'root@pam';
+        raise_param_exc({ skiplock => "Only superusers may use this option." })
+            if $skiplock && !$is_superuser;
 
         my $storecfg = PVE::Storage::config();
 
-- 
2.30.2



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