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TFTP downloading now working

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git-svn-id: http://svn.code.sf.net/p/netboot65/code@11 93682198-c243-4bdb-bd91-e943c89aac3b
This commit is contained in:
jonnosan 2009-01-13 10:10:57 +00:00
parent 4e307b0b48
commit 5c3880014f
1 changed files with 27 additions and 4 deletions
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31
server/netboot65_tftp.rb
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@ -51,8 +51,31 @@ class Netboot65TFTPServer
blocks_to_send.times do |block_number|
block_data=data_to_send[block_number*512,512]
packet=[3,block_number+1,block_data].pack("nnA*")
log_msg("sending block #{block_number+1}/#{blocks_to_send} to #{client_ip}:#{client_port} - #{block_data.length} bytes")
client_sock.send(packet,0,client_ip,client_port)
got_ack=false
TFTP_MAX_RESENDS.times do |attempt_number|
log_msg("sending block #{block_number+1}/#{blocks_to_send} of #{filename} to #{client_ip}:#{client_port} - #{block_data.length} bytes - attempt #{attempt_number+1}")
client_sock.send(packet,0,client_ip,client_port)
if (IO.select([client_sock], nil, nil, 1)) then
data,addr_info=client_sock.recvfrom(4096)
client_ip=addr_info[3]
client_port=addr_info[1]
opcode=data[0,2].unpack("n")[0]
opcode_description=TFTP_OPCODES[opcode]
if opcode==4 then
acked_block_number=data[2,2].unpack("n")[0]
log_msg "TFTP: ACK from #{client_ip}:#{client_port} - block #{acked_block_number}"
got_ack=true if acked_block_number==block_number+1
else
opcode_description="[UNK]" if opcode_description.nil?
log_msg "TFTP: response from #{client_ip}:#{client_port} - opcode #{opcode} : #{opcode_description}"
end
end
break if got_ack
end
if !got_ack then
log_msg "TFTP: timed out waiting for ACK of block #{block_number} from #{client_ip}"
break
end
end
end
@ -65,7 +88,7 @@ class Netboot65TFTPServer
socket=UDPSocket.open
socket.setsockopt Socket::SOL_SOCKET, Socket::SO_REUSEADDR, 1
log_msg "waiting for TFTP client to connect"
socket.bind(nil,port)
socket.bind("",port)
data,addr_info=socket.recvfrom(4096)
client_ip=addr_info[3]
client_port=addr_info[1]
@ -83,7 +106,7 @@ class Netboot65TFTPServer
else
full_filename="#{bootfile_dir}/#{filename}"
if File.file?(full_filename) then
send_file(client_ip,client_port,full_filename)
Thread.new {send_file(client_ip,client_port,full_filename)}
else
send_error(client_ip,client_port,1,"'#{filename}' not found")
end