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Contents
module RubySMB
module SMB1
module Packet
module Trans
# Extends the {RubySMB::SMB1::DataBlock} to include padding methods
# that all Trans DataBlocks will need to handle proper byte alignment.
class DataBlock < RubySMB::SMB1::DataBlock
# Controls whether the padding fields will be used
# @!attribute [rw] enable_padding
# @return [Boolean]
attr_accessor :enable_padding
def initialize_instance
super
@enable_padding = true
end
private
# Determines the correct length for the padding in front of
# #trans_parameters. It should always force a 4-byte alignment.
def pad1_length
if enable_padding
if self.respond_to?(:name)
offset = (name.abs_offset + name.to_binary_s.length) % 4
else
offset = (byte_count.abs_offset + 2) % 4
end
(4 - offset) % 4
else
0
end
end
# Determines the correct length for the padding in front of
# #trans_data. It should always force a 4-byte alignment.
def pad2_length
if enable_padding
offset = (trans_parameters.abs_offset + trans_parameters.length) % 4
(4 - offset) % 4
else
0
end
end
# Determines the correct length for the padding in front of
# #name. It should always force a 2-byte alignment.
def pad_name_length
if enable_padding
offset = (byte_count.abs_offset + 2) % 2
(2 - offset) % 2
else
0
end
end
end
end
end
end
end
Version data entries
60 entries across 60 versions & 1 rubygems