[pve-devel] [PATCH qemu-server 4/4] fix #5900: do not create vm if dhcp range is exhausted

[Daniel Herzig]

This patch prevents VMs to be created if their bridge is
associated with a SDN zone with dnsmasq automatic dhcp enabled, and if
the dhcp-range is exhausted or unset.

Signed-off-by: Daniel Herzig <d.herzig at proxmox.com>
---
 PVE/API2/Qemu.pm | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/PVE/API2/Qemu.pm b/PVE/API2/Qemu.pm
index ec45d5ff..73580c64 100644
--- a/PVE/API2/Qemu.pm
+++ b/PVE/API2/Qemu.pm
@@ -1065,6 +1065,18 @@ __PACKAGE__->register_method({
 	    raise_perm_exc();
 	}
 
+	for my $opt (keys %$param) {
+	    if ($opt =~ /net/) {
+		my $bridge_err;
+		my $bridge = PVE::GuestHelpers::get_bridge(${param}->{$opt});
+		if (defined($bridge)) {
+		    eval { PVE::Network::SDN::Dhcp::test_bridge_for_sdn_dnsmasq($bridge) };
+		    ${bridge_err}->{$opt} = $@ if $@;
+		    raise_param_exc($bridge_err) if $bridge_err;
+		}
+	    }
+	}
+
 	if ($archive) {
 	    for my $opt (sort keys $param->%*) {
 		if (PVE::QemuServer::Drive::is_valid_drivename($opt)) {
-- 
2.39.5