lib/ruby_smb/client/echo.rb
module RubySMB
class Client
# Contains the methods for doing ECHO commands
module Echo
# Sends an ECHO request packet and returns the
# last response packet.
#
# @param echo [Integer] the number of times the server should echo (ignored in SMB2)
# @param data [String] the data the server should echo back (ignored in SMB2)
# @return [RubySMB::SMB1::Packet::EchoResponse] the last Echo Response packet received
def smb1_echo(count: 1, data: '')
request = RubySMB::SMB1::Packet::EchoRequest.new
request.parameter_block.echo_count = count
request.data_block.data = data
raw_response = send_recv(request)
(count - 1).times do
raw_response = dispatcher.recv_packet
end
response = RubySMB::SMB1::Packet::EchoResponse.read(raw_response)
unless response.valid?
raise RubySMB::Error::InvalidPacket.new(
expected_proto: RubySMB::SMB1::SMB_PROTOCOL_ID,
expected_cmd: RubySMB::SMB1::Packet::EchoResponse::COMMAND,
packet: response
)
end
response
end
# Sends an ECHO request packet and returns the
# response packet.
#
# @return [RubySMB::SMB2::Packet::EchoResponse]
def smb2_echo
request = RubySMB::SMB2::Packet::EchoRequest.new
raw_response = send_recv(request)
response = RubySMB::SMB2::Packet::EchoResponse.read(raw_response)
unless response.valid?
raise RubySMB::Error::InvalidPacket.new(
expected_proto: RubySMB::SMB2::SMB2_PROTOCOL_ID,
expected_cmd: RubySMB::SMB2::Packet::EchoResponse::COMMAND,
packet: response
)
end
response
end
end
end
end