NM-1.0 ▶ NM ▶ utils_check_virtual_device_compatibility

Determines if a connection of type virtual_type can (in the general case) work with connections of type other_type.

If virtual_type is NM_TYPE_SETTING_VLAN, then this checks if other_type is a valid type for the parent of a VLAN.

If virtual_type is a "controller" type (eg, NM_TYPE_SETTING_BRIDGE), then this checks if other_type is a valid type for a port of that controller.

Note that even if this returns true it is not guaranteed that every connection of type other_type is compatible with virtual_type; it may depend on the exact configuration of the two connections, or on the capabilities of an underlying device driver.