Class: RubySMB::SMB1::ParameterBlock

Inherits:
BinData::Record
  • Object
show all
Defined in:
lib/ruby_smb/smb1/parameter_block.rb

Overview

Represents the ParameterBlock portion of an SMB1 Packet. The ParameterBlock will always contain a word_count field that gives the size of the rest of the data block in words.

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.calculate_word_count ⇒ Object

Class method to stub word count calculation during lazy evaluation.

Parameters:

  • will (Fixnum) —

    always return 0



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# File 'lib/ruby_smb/smb1/parameter_block.rb', line 15

def self.calculate_word_count
  0
end

.parameter_fields ⇒ Array<Symbol>

Returns the name of all fields, other than word_count, in the ParameterBlock as symbols.

Returns:

  • (Array<Symbol>) —

    the names of all other ParameterBlock fields



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# File 'lib/ruby_smb/smb1/parameter_block.rb', line 23

def self.parameter_fields
  fields = self.fields.collect(&:name)
  fields.reject { |field| field == :word_count }
end

Instance Method Details

#calculate_word_count ⇒ Fixnum

Calculates the size of the other fields in the ParameterBlock in Words.

Returns:

  • (Fixnum) —

    The size of the ParameterBlock in Words



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# File 'lib/ruby_smb/smb1/parameter_block.rb', line 32

def calculate_word_count
  total_count = 0
  self.class.parameter_fields.each do |field_name|
    field_value = send(field_name)
    total_count += field_value.do_num_bytes
  end
  total_count.to_i / 2
end