import "google/protobuf/descriptor.proto"; message CRIU_Opts { optional bool hex = 1; // Idicate that CRIT should treat this field as hex. optional bool ipadd = 2; // The field is IPv4/v6 address optional string flags = 3; optional bool dev = 4; // Device major:minor packed optional bool odev = 5; // ... in old format } extend google.protobuf.FieldOptions { // Registered unique number to use for all kinds of custom options. optional CRIU_Opts criu = 1018; }