Class: Rex::Proto::SMB::SimpleClient::OpenPipe

Inherits:
OpenFile
  • Object
show all
Defined in:
lib/rex/proto/smb/simpleclient/open_pipe.rb

Instance Attribute Summary collapse

Attributes inherited from OpenFile

#chunk_size, #client, #file_id, #name, #tree_id

Instance Method Summary collapse

Methods inherited from OpenFile

#<<, #close, #delete

Constructor Details

#initialize(*args) ⇒ OpenPipe

Returns a new instance of OpenPipe.



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# File 'lib/rex/proto/smb/simpleclient/open_pipe.rb', line 13

def initialize(*args)
  super(*args)
  self.mode = 'rw'
  @buff = ''
end

Instance Attribute Details

#mode ⇒ Object

Valid modes are: ‘trans’ and ‘rw’



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# File 'lib/rex/proto/smb/simpleclient/open_pipe.rb', line 11

def mode
  @mode
end

Instance Method Details

#read(length = nil, offset = 0) ⇒ Object 



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# File 'lib/rex/proto/smb/simpleclient/open_pipe.rb', line 24

def read(length = nil, offset = 0)
  case self.mode
  when 'trans'
    read_buffer(length, offset)
  when 'rw'
    super(length, offset)
  else
    raise ArgumentError
  end
end

#read_buffer(length, offset = 0) ⇒ Object 



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# File 'lib/rex/proto/smb/simpleclient/open_pipe.rb', line 19

def read_buffer(length, offset=0)
  length ||= @buff.length
  @buff.slice!(0, length)
end

#write(data, offset = 0) ⇒ Object 



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# File 'lib/rex/proto/smb/simpleclient/open_pipe.rb', line 35

def write(data, offset = 0)
  case self.mode

  when 'trans'
    write_trans(data, offset)
  when 'rw'
    super(data, offset)
  else
    raise ArgumentError
  end
end

#write_trans(data, offset = 0) ⇒ Object 



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# File 'lib/rex/proto/smb/simpleclient/open_pipe.rb', line 47

def write_trans(data, offset=0)
  ack = self.client.trans_named_pipe(self.file_id, data)
  doff = ack['Payload'].v['DataOffset']
  dlen = ack['Payload'].v['DataCount']
  @buff << ack.to_s[4+doff, dlen]
end