From: Dominik Csapak <d.csapak@proxmox.com>
To: pve-devel@lists.proxmox.com
Subject: [pve-devel] [PATCH qemu-server v9 1/1] api: update: improve tag privilege check
Date: Mon, 14 Nov 2022 10:43:49 +0100 [thread overview]
Message-ID: <20221114094404.1241050-6-d.csapak@proxmox.com> (raw)
In-Reply-To: <20221114094404.1241050-1-d.csapak@proxmox.com>
'normal' tags require 'VM.Config.Options' on '/vm/<vmid>', but not
allowed tags (either limited with 'user-tag-access' or 'privileged-tags'
in the datacenter config) require 'Sys.Modify' on '/'
this patch implements the proper checks on adding/editing/deleting
these permissions
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
---
changes from v8:
* adapt to 'get_allowed_tags'
* cache privilege checks (so we don't have to do it when many tags change)
PVE/API2/Qemu.pm | 53 +++++++++++++++++++++++++++++++++++++++++++++++-
1 file changed, 52 insertions(+), 1 deletion(-)
diff --git a/PVE/API2/Qemu.pm b/PVE/API2/Qemu.pm
index 30348e6..269451c 100644
--- a/PVE/API2/Qemu.pm
+++ b/PVE/API2/Qemu.pm
@@ -539,7 +539,6 @@ my $generaloptions = {
'startup' => 1,
'tdf' => 1,
'template' => 1,
- 'tags' => 1,
};
my $vmpoweroptions = {
@@ -609,6 +608,7 @@ my $check_vm_modify_config_perm = sub {
next if PVE::QemuServer::is_valid_drivename($opt);
next if $opt eq 'cdrom';
next if $opt =~ m/^(?:unused|serial|usb)\d+$/;
+ next if $opt eq 'tags';
if ($cpuoptions->{$opt} || $opt =~ m/^numa\d+$/) {
@@ -1631,6 +1631,31 @@ my $update_vm_api = sub {
}
};
+ my $allowed_tags;
+ my $privileged_tags;
+ my $freeform;
+ my $privileged_user = $rpcenv->check($authuser, '/', ['Sys.Modify'], 1);
+ my $has_config_options =
+ $rpcenv->check_vm_perm($authuser, $vmid, undef, ['VM.Config.Options'], 1);
+
+ my $check_tag_perms = sub {
+ my ($tag) = @_;
+
+ return if $privileged_user;
+
+ $rpcenv->check_vm_perm($authuser, $vmid, undef, ['VM.Config.Options'])
+ if !$has_config_options;
+
+ if (!defined($allowed_tags) && !defined($privileged_tags) && !defined($freeform)) {
+ ($allowed_tags, $privileged_tags, $freeform)
+ = PVE::DataCenterConfig::get_allowed_tags($rpcenv, $authuser);
+ }
+
+ if ((!$allowed_tags->{$tag} && !$freeform) || $privileged_tags->{$tag}) {
+ die "'Sys.Modify' required on '/' for modifying tag $tag\n" if !$privileged_user;
+ }
+ };
+
foreach my $opt (@delete) {
$modified->{$opt} = 1;
$conf = PVE::QemuConfig->load_config($vmid); # update/reload
@@ -1689,6 +1714,13 @@ my $update_vm_api = sub {
}
PVE::QemuConfig->add_to_pending_delete($conf, $opt, $force);
PVE::QemuConfig->write_config($vmid, $conf);
+ } elsif ($opt eq 'tags') {
+ foreach my $tag (PVE::Tools::split_list($val)) {
+ check_tag_perms->($tag);
+ }
+
+ delete $conf->{$opt};
+ PVE::QemuConfig->write_config($vmid, $conf);
} else {
PVE::QemuConfig->add_to_pending_delete($conf, $opt, $force);
PVE::QemuConfig->write_config($vmid, $conf);
@@ -1748,6 +1780,25 @@ 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 eq 'tags') {
+ my $old_tags = {};
+ my $new_tags = {};
+
+ map { $old_tags->{$_} += 1 } PVE::Tools::split_list($conf->{$opt} // '');
+ map { $new_tags->{$_} += 1 } PVE::Tools::split_list($param->{$opt});
+
+ my $check_tags = sub {
+ my ($a, $b) = @_;
+ foreach my $tag (keys %$a) {
+ next if ($b->{$tag} // 0) == ($a->{$tag} // 0);
+ $check_tag_perms->($tag);
+ }
+ };
+
+ $check_tags->($old_tags, $new_tags);
+ $check_tags->($new_tags, $old_tags);
+
$conf->{pending}->{$opt} = $param->{$opt};
} else {
$conf->{pending}->{$opt} = $param->{$opt};
--
2.30.2
next prev parent reply other threads:[~2022-11-14 9:44 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-14 9:43 [pve-devel] [PATCH cluster/qemu-server/container/wt/manager v9] add tags to ui Dominik Csapak
2022-11-14 9:43 ` [pve-devel] [PATCH cluster v9 1/4] add CFS_IPC_GET_GUEST_CONFIG_PROPERTIES method Dominik Csapak
2022-11-14 13:15 ` Wolfgang Bumiller
2022-11-14 9:43 ` [pve-devel] [PATCH cluster v9 2/4] Cluster: add get_guest_config_properties Dominik Csapak
2022-11-14 9:43 ` [pve-devel] [PATCH cluster v9 3/4] datacenter.cfg: add option for tag-style Dominik Csapak
2022-11-14 9:43 ` [pve-devel] [PATCH cluster v9 4/4] datacenter.cfg: add tag rights control to the datacenter config Dominik Csapak
2022-11-14 13:32 ` Wolfgang Bumiller
2022-11-14 9:43 ` Dominik Csapak [this message]
2022-11-14 13:37 ` [pve-devel] [PATCH qemu-server v9 1/1] api: update: improve tag privilege check Wolfgang Bumiller
2022-11-15 8:34 ` Aaron Lauterer
2022-11-14 9:43 ` [pve-devel] [PATCH container v9 1/1] check_ct_modify_config_perm: " Dominik Csapak
2022-11-14 13:37 ` Wolfgang Bumiller
2022-11-14 9:43 ` [pve-devel] [PATCH widget-toolkit v9 1/2] add tag related helpers Dominik Csapak
2022-11-14 9:43 ` [pve-devel] [PATCH widget-toolkit v9 2/2] Toolkit: add override for Ext.dd.DragDropManager Dominik Csapak
2022-11-14 9:43 ` [pve-devel] [PATCH manager v9 01/12] api: /cluster/resources: add tags to returned properties Dominik Csapak
2022-11-14 9:43 ` [pve-devel] [PATCH manager v9 02/12] api: add /ui-options api call Dominik Csapak
2022-11-14 9:43 ` [pve-devel] [PATCH manager v9 03/12] ui: call '/ui-options' and save the result in PVE.UIOptions Dominik Csapak
2022-11-14 9:43 ` [pve-devel] [PATCH manager v9 04/12] ui: parse and save tag infos from /ui-options Dominik Csapak
2022-11-14 9:43 ` [pve-devel] [PATCH manager v9 05/12] ui: add form/TagColorGrid Dominik Csapak
2022-11-14 9:43 ` [pve-devel] [PATCH manager v9 06/12] ui: add PVE.form.ListField Dominik Csapak
2022-11-14 9:43 ` [pve-devel] [PATCH manager v9 07/12] ui: dc/OptionView: add editors for tag settings Dominik Csapak
2022-11-14 9:44 ` [pve-devel] [PATCH manager v9 08/12] ui: add form/Tag Dominik Csapak
2022-11-14 9:44 ` [pve-devel] [PATCH manager v9 09/12] ui: add form/TagEdit.js Dominik Csapak
2022-11-14 9:44 ` [pve-devel] [PATCH manager v9 10/12] ui: {lxc, qemu}/Config: show Tags and make them editable Dominik Csapak
2022-11-14 9:44 ` [pve-devel] [PATCH manager v9 11/12] ui: tree/ResourceTree: show Tags in tree Dominik Csapak
2022-11-14 9:44 ` [pve-devel] [PATCH manager v9 12/12] ui: add tags to ResourceGrid and GlobalSearchField Dominik Csapak
2022-11-14 17:20 ` [pve-devel] [PATCH cluster/qemu-server/container/wt/manager v9] add tags to ui Aaron Lauterer
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