]> git.zerfleddert.de Git - proxmark3-svn/blame_incremental - client/lualibs/commands.lua
fix 'lf pcf7931 bruteforce' (bug reported in http://www.proxmark.org/forum/viewtopic...
[proxmark3-svn] / client / lualibs / commands.lua
... / ...
CommitLineData
1--[[
2Handle Proxmark USB Commands
3--]]
4
5local _commands = require('usb_cmd')
6
7local _reverse_lookup,k,v = {}
8 for k, v in pairs(_commands) do
9 _reverse_lookup[v] = k
10 end
11 _commands.tostring = function(command)
12 if(type(command) == 'number') then
13 return ("%s (%d)"):format(_reverse_lookup[command]or "ERROR UNDEFINED!", command)
14 end
15 return ("Error, numeric argument expected, got : %s"):format(tostring(command))
16end
17
18Command = {
19
20 new = function(self, o)
21
22 local o = o or {} -- create object if user does not provide one
23 setmetatable(o, self) -- DIY inheritance a'la javascript
24 self.__index = self
25
26 o.cmd = o.cmd or _commands.CMD_UNKNOWN
27 --o.arg1 = "test"
28 o.arg1 = o.arg1 or 0
29 o.arg2 = o.arg2 or 0
30 o.arg3 = o.arg3 or 0
31 local data = o.data or "0"
32
33 if(type(data) == 'string') then
34 -- We need to check if it is correct length, otherwise pad it
35 local len = string.len(data)
36 if(len < 1024) then
37 --Should be 1024 hex characters to represent 512 bytes of data
38 data = data .. string.rep("0",1024 - len )
39 end
40 if(len > 1024) then
41 -- OOps, a bit too much data here
42 print( ( "WARNING: data size too large, was %s chars, will be truncated "):format(len) )
43 --
44 data = data:sub(1,1024)
45 end
46 else
47 print(("WARNING; data was NOT a (hex-) string, but was %s"):format(type(data)))
48 end
49 o.data = data
50
51 return o
52 end,
53 parse = function (packet)
54 local count,cmd,arg1,arg2,arg3,data = bin.unpack('LLLLH512',packet)
55 return Command:new{cmd = cmd, arg1 = arg1, arg2 = arg2, arg3 = arg3, data = data}
56 end,
57}
58function Command:__tostring()
59 local output = ("%s\r\nargs : (%s, %s, %s)\r\ndata:\r\n%s\r\n"):format(
60 _commands.tostring(self.cmd),
61 tostring(self.arg1),
62 tostring(self.arg2),
63 tostring(self.arg3),
64 tostring(self.data))
65 return output
66end
67function Command:getBytes()
68 --If a hex-string has been used
69 local data = self.data
70 local cmd = self.cmd
71 local arg1, arg2, arg3 = self.arg1, self.arg2, self.arg3
72 return bin.pack("LLLLH",cmd, arg1, arg2, arg3, data);
73end
74return _commands
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