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4a022ff144
git-svn-id: http://svn.code.sf.net/p/netboot65/code@325 93682198-c243-4bdb-bd91-e943c89aac3b
129 lines
3.7 KiB
Ruby
129 lines
3.7 KiB
Ruby
#cartridge offsets:
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# $18=MAC address (6 bytes)
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# $1E=IP address (4 bytes)
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# $22=netmask (4 bytes)
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# $26=gateway (4 bytes)
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# $2A=DNS (4 bytes)
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# $2E= DHCP server (4 bytes) (not changeable)
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# $32=TFTP server (4 bytes)
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# $36=drive (1 byte)
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@cartridge_offsets={
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#symobol => offset, length
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:mac=>[0x18,6],
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:ip=>[0x1e,4],
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:netmask=>[0x22,4],
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:gateway=>[0x26,4],
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:dns=>[0x2a,4],
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:tftp=>[0x32,4],
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:drive=>[0x36,1]
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}
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@progname=File.basename($0)
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def show_options
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puts "valid options are: #{@cartridge_offsets.keys.join(", ")}"
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puts "mac auto will automagically generate a pseudorandom MAC"
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end
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def usage
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puts "#{@progname} <image> <option> <value> [<option> <value> ..]"
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puts "multiple options may be set"
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show_options
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true
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end
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number_of_options=ARGV.length
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usage && exit unless number_of_options>=3
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usage && exit unless (number_of_options%2) ==1 #must be an odd number of options
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filename=ARGV[0]
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if !(FileTest.file?(filename)) then
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puts "file '#{filename}' not found"
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exit
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end
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filebytes=File.open(filename,"rb").read
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start_of_kipper_cart_image=filebytes.index("80KIP")
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if start_of_kipper_cart_image.nil? then
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puts "file '#{filename}' does not appear to be a kipper cartridge image"
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exit
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end
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(number_of_options/2).times do |i|
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option=ARGV[i*2+1]
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value=ARGV[i*2+2]
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# puts "#{option} : #{value}"
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offsets=@cartridge_offsets[option.to_sym]
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if offsets.nil? then
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puts "invalid option #{option}"
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show_options
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exit
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end
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option_offset=start_of_kipper_cart_image+offsets[0]-7
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option_length=offsets[1]
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if option_length==6 then
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if value.downcase=="auto" then
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require 'digest/md5'
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digest = Digest::MD5.digest(Time.now.to_s).bytes.to_a
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mac=[0x00,0x80,0x10,digest[0],digest[1],Kernel.rand(255)]
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else
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split_values=value.split(":")
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if (split_values.length!=6) || (split_values[5].nil?) then
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puts "'#{value}' is not a valid MAC address. (e.g. 12:34:56:78:ab:cd)"
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exit
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end
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mac=[]
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6.times do |j|
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mac[j]=split_values[j].hex
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# puts "#{split_values[j]}->#{"%02X" % mac[j]}"
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end
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end
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packed_option=mac.pack("cccccc")
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elsif option_length==1 then #it must be drive letter
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packed_option=[value.to_i].pack("c")
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else #it must be an IP
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split_values=value.split(".")
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if (split_values.length!=4) || (split_values[3].nil?) then
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puts "'#{value}' is not a valid IP format. (e.g. 192.168.1.64)"
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exit
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end
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ip=[]
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4.times do |j|
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ip[j]=split_values[j].to_i
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# puts "#{split_values[j]}->#{ip[j]}"
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if (ip[j]<0) || (ip[j]>255) then
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puts "'#{value}' is not a valid IP format. (e.g. 192.168.1.64)"
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exit
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end
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end
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packed_option=ip.pack("cccc")
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end
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filebytes[option_offset,option_length]=packed_option
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end
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filehandle=File.open(filename,"wb")
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filehandle<<filebytes
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filehandle.close
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#-- LICENSE FOR set_ip_config.rb --
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# The contents of this file are subject to the Mozilla Public License
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# Version 1.1 (the "License"); you may not use this file except in
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# compliance with the License. You may obtain a copy of the License at
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# http://www.mozilla.org/MPL/
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#
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# Software distributed under the License is distributed on an "AS IS"
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# basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
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# License for the specific language governing rights and limitations
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# under the License.
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#
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# The Original Code is netboot65.
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#
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# The Initial Developer of the Original Code is Jonno Downes,
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# jonno@jamtronix.com.
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# Portions created by the Initial Developer are Copyright (C) 2009
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# Jonno Downes. All Rights Reserved.
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# -- LICENSE END --
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