Land #269, Adding dsrgetdcnameex2 implementation

lib/ruby_smb/dcerpc/netlogon.rb

@@ -11,6 +11,7 @@ module Netlogon
       NETR_SERVER_REQ_CHALLENGE = 4
       NETR_SERVER_AUTHENTICATE3 = 26
       NETR_SERVER_PASSWORD_SET2 = 30
+      DSR_GET_DC_NAME_EX2 = 34
 
       # see: https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-nrpc/3b224201-b531-43e2-8c79-b61f6dea8640
       class LogonsrvHandle < Ndr::NdrWideStringzPtr; end
@@ -65,6 +66,8 @@ def assign(val)
       require 'ruby_smb/dcerpc/netlogon/netr_server_password_set2_response'
       require 'ruby_smb/dcerpc/netlogon/netr_server_req_challenge_request'
       require 'ruby_smb/dcerpc/netlogon/netr_server_req_challenge_response'
+      require 'ruby_smb/dcerpc/netlogon/dsr_get_dc_name_ex2_request'
+      require 'ruby_smb/dcerpc/netlogon/dsr_get_dc_name_ex2_response'
 
       # Calculate the netlogon session key from the provided shared secret and
       # challenges. The shared secret is an NTLM hash.

lib/ruby_smb/dcerpc/netlogon/domain_controller_infow.rb

@@ -0,0 +1,28 @@
+require 'ruby_smb/dcerpc/ndr'
+
+module RubySMB
+  module Dcerpc
+    module Netlogon
+
+      # [2.2.1.2.1 DOMAIN_CONTROLLER_INFOW](https://learn.microsoft.com/en-us/openspecs/windows_protocols/ms-nrpc/9b85a7a4-8d34-4b9e-9500-bf8644ebfc06)
+      class DomainControllerInfoW < Ndr::NdrStruct
+        default_parameters byte_align: 4
+        endian :little
+
+        ndr_wide_stringz_ptr :domain_controller_name
+        ndr_wide_stringz_ptr :domain_controller_address
+        ndr_uint32           :domain_controller_address_type
+        uuid                 :domain_guid
+        ndr_wide_stringz_ptr :domain_name
+        ndr_wide_stringz_ptr :dns_forest_name
+        ndr_uint32           :flags
+        ndr_wide_stringz_ptr :dc_site_name
+        ndr_wide_stringz_ptr :client_site_name
+      end
+
+      class DomainControllerInfoWPtr < DomainControllerInfoW
+        extend Ndr::PointerClassPlugin
+      end
+    end
+  end
+end

lib/ruby_smb/dcerpc/netlogon/dsr_get_dc_name_ex2_request.rb

@@ -0,0 +1,28 @@
+require 'ruby_smb/dcerpc/ndr'
+
+module RubySMB
+  module Dcerpc
+    module Netlogon
+
+      # [3.5.4.3.1 DsrGetDcNameEx2 (Opnum 34)](https://learn.microsoft.com/en-us/openspecs/windows_protocols/ms-nrpc/fb8e1146-a045-4c31-98d1-c68507ad5620)
+      class DsrGetDcNameEx2Request < BinData::Record
+        attr_reader :opnum
+
+        endian :little
+
+        logonsrv_handle       :computer_name
+        ndr_wide_stringz_ptr  :account_name
+        ndr_uint32            :allowable_account_control_bits
+        ndr_wide_stringz_ptr  :domain_name
+        uuid_ptr              :domain_guid
+        ndr_wide_stringz_ptr  :site_name
+        ndr_uint32            :flags
+
+        def initialize_instance
+          super
+          @opnum = DSR_GET_DC_NAME_EX2
+        end
+      end
+    end
+  end
+end

lib/ruby_smb/dcerpc/netlogon/dsr_get_dc_name_ex2_response.rb

@@ -0,0 +1,24 @@
+require 'ruby_smb/dcerpc/ndr'
+require 'ruby_smb/dcerpc/netlogon/domain_controller_infow'
+
+module RubySMB
+  module Dcerpc
+    module Netlogon
+
+      # [3.5.4.3.1 DsrGetDcNameEx2 (Opnum 34)](https://learn.microsoft.com/en-us/openspecs/windows_protocols/ms-nrpc/fb8e1146-a045-4c31-98d1-c68507ad5620)
+      class DsrGetDcNameEx2Response < BinData::Record
+        attr_reader :opnum
+
+        endian :little
+
+        domain_controller_info_w_ptr  :domain_controller_info
+        ndr_uint32                    :error_status
+
+        def initialize_instance
+          super
+          @opnum = DSR_GET_DC_NAME_EX2
+        end
+      end
+    end
+  end
+end