fix(drivers): parse interface source by its own type, not hypervisor's

_domain2machine/_list_interfaces read a <source> element's attribute
keyed by self._spec.network_type (the hypervisor's own bridge/network
setting), but the boot-network port is always type='network' regardless
of that setting (see the earlier create_machine fix). On a bridge-type
hypervisor this made every boot-network interface look like it had no
mac/source at all, breaking pool listing (and everything depending on
it - pool_volume, pool_machine) for the entire hypervisor.

Read the interface's own 'type' attribute instead of assuming it
matches the hypervisor's network_type.

Author: VasilyStepanov

exordos_core/compute/pool/drivers/libvirt.py

@@ -621,7 +621,11 @@ def _domain2machine(
             mac_el = iface.find("mac")
             source_el = iface.find("source")
             mac = mac_el.get("address")
-            source = source_el.get(self._spec.network_type)
+            # The boot-network port is always type='network' regardless of
+            # the hypervisor's own network_type (see create_machine) - read
+            # the source attribute this specific interface actually has
+            # ('network' or 'bridge'), not the hypervisor's configured type.
+            source = source_el.get(iface.get("type"))
 
             if not mac or not source:
                 raise ValueError(f"Interface {iface} has no mac or source")
@@ -700,7 +704,9 @@ def _list_interfaces(self, machine: models.Machine) -> tp.List[models.Port]:
             mac_el = iface.find("mac")
             source_el = iface.find("source")
             mac = mac_el.get("address")
-            source = source_el.get(self._spec.network_type)
+            # See _domain2machine: read the source attribute this specific
+            # interface actually has, not the hypervisor's network_type.
+            source = source_el.get(iface.get("type"))
 
             if not mac or not source:
                 raise ValueError(f"Interface {iface} has no mac or source")