[pve-devel] [PATCH v2 manager 04/12] api: backup: allow SUs to use 'tmpdir', 'dumpdir' and 'script' options

[Oguz Bektas]

previously limited to root at pam; we can allow SUs to use these options if
they have the privilege on the whole API path.

Signed-off-by: Oguz Bektas <o.bektas at proxmox.com>
---
 PVE/API2/Backup.pm | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/PVE/API2/Backup.pm b/PVE/API2/Backup.pm
index 9953a704..142eddd1 100644
--- a/PVE/API2/Backup.pm
+++ b/PVE/API2/Backup.pm
@@ -43,8 +43,13 @@ my $assert_param_permission = sub {
     my ($param, $user) = @_;
     return if $user eq 'root at pam'; # always OK
 
+    my $rpcenv = PVE::RPCEnvironment::get();
+    # we need to have SU privs on / path for these options to be used safely
+    my $is_superuser = $rpcenv->check($user, "/", ['SuperUser'], 1);
+    return if $is_superuser;
+
     for my $key (qw(tmpdir dumpdir script)) {
-	raise_param_exc({ $key => "Only root may set this option."}) if exists $param->{$key};
+	raise_param_exc({ $key => "Only superusers may set this option."}) if exists $param->{$key};
     }
 };
 
@@ -142,7 +147,7 @@ __PACKAGE__->register_method({
     description => "Create new vzdump backup job.",
     permissions => {
 	check => ['perm', '/', ['Sys.Modify']],
-	description => "The 'tmpdir', 'dumpdir' and 'script' parameters are additionally restricted to the 'root\@pam' user.",
+	description => "The 'tmpdir', 'dumpdir' and 'script' parameters are additionally restricted to superusers.",
     },
     parameters => {
     	additionalProperties => 0,
@@ -344,7 +349,7 @@ __PACKAGE__->register_method({
     description => "Update vzdump backup job definition.",
     permissions => {
 	check => ['perm', '/', ['Sys.Modify']],
-	description => "The 'tmpdir', 'dumpdir' and 'script' parameters are additionally restricted to the 'root\@pam' user.",
+	description => "The 'tmpdir', 'dumpdir' and 'script' parameters are additionally restricted to superusers.",
     },
     parameters => {
     	additionalProperties => 0,
-- 
2.30.2