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https://github.com/RfidResearchGroup/proxmark3.git
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lua: fix mix of spaces & tabs
This commit is contained in:
Philippe Teuwen
parent
716c17bac8
commit
05ff45e550
41 changed files with 5185 additions and 5185 deletions
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@ -12,59 +12,59 @@ Perform bulk enrollment of 26 bit H10301 style RFID Tags
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For more info, check the comments in the code
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]]
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example = [[
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--
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script run lf_bulk.lua -f 1 -b 1000 -c 10
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--
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script run lf_bulk.lua -f 1 -b 1000 -c 10
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]]
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usage = [[
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script run lf_bulk.lua -f facility -b base_id_num -c count
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Arguments:
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-h : this help
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-f : facility id
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-b : starting card id
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-c : count, number of cards to make
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-h : this help
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-f : facility id
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-b : starting card id
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-c : count, number of cards to make
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]]
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local DEBUG = true
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--local bxor = bit32.bxor
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local bor = bit32.bor
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local lshift = bit32.lshift
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---
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---
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-- A debug printout-function
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local function dbg(args)
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if not DEBUG then return end
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if type(args) == "table" then
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local i = 1
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while args[i] do
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dbg(args[i])
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i = i+1
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end
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else
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print("###", args)
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end
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end
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---
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local i = 1
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while args[i] do
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dbg(args[i])
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i = i+1
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end
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else
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print("###", args)
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end
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end
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---
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-- This is only meant to be used when errors occur
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local function oops(err)
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print("ERROR: ",err)
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return nil,err
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print("ERROR: ",err)
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return nil,err
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end
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---
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---
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-- Usage help
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local function help()
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print(copyright)
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print(author)
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print(version)
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print(desc)
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print('Example usage')
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print(example)
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print(copyright)
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print(author)
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print(version)
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print(desc)
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print('Example usage')
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print(example)
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end
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---
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-- Exit message
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local function exitMsg(msg)
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print( string.rep('--',20) )
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print( string.rep('--',20) )
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print(msg)
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print()
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print( string.rep('--',20) )
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print( string.rep('--',20) )
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print(msg)
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print()
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end
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--[[Implement a function to simply visualize the bitstream in a text format
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--This is especially helpful for troubleshooting bitwise math issues]]--
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@ -81,22 +81,22 @@ end
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--[[
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Likely, I'm an idiot, but I couldn't find any parity functions in Lua
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This can also be done with a combination of bitwise operations (in fact,
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This can also be done with a combination of bitwise operations (in fact,
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is the canonically "correct" way to do it, but my brain doesn't just
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default to this and so counting some ones is good enough for me
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]]--
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local function evenparity(s)
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local _, count = string.gsub(s, "1", "")
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local p = count % 2
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if (p == 0) then
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return false
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else
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return true
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end
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local _, count = string.gsub(s, "1", "")
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local p = count % 2
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if (p == 0) then
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return false
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else
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return true
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end
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end
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local function isempty(s)
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return s == nil or s == ''
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return s == nil or s == ''
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end
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--[[
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@ -105,89 +105,89 @@ end
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hex. This should be easy enough to extend to non 26bit formats
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]]--
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local function cardHex(i, f)
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fac = lshift(f, 16)
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id = bor(i, fac)
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stream = toBits(id, 24)
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fac = lshift(f, 16)
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id = bor(i, fac)
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stream = toBits(id, 24)
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--As the function defaults to even parity and returns a boolean,
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--perform a 'not' function to get odd parity
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high = evenparity(string.sub(stream,1,12)) and 1 or 0
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low = not evenparity(string.sub(stream,13)) and 1 or 0
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bits = bor( lshift(id, 1), low)
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bits = bor( bits, lshift(high, 25))
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--As the function defaults to even parity and returns a boolean,
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--perform a 'not' function to get odd parity
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high = evenparity(string.sub(stream,1,12)) and 1 or 0
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low = not evenparity(string.sub(stream,13)) and 1 or 0
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bits = bor( lshift(id, 1), low)
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bits = bor( bits, lshift(high, 25))
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--Since the lua library bit32 is (obviously) 32 bits and we need to
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--encode 36 bits to properly do a 26 bit tag with the preamble we need
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--to create a higher order and lower order component which we will
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--then assemble in the return. The math above defines the proper
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--encoding as per HID/Weigand/etc. These bit flips are due to the
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--format length check on bit 38 (cmdlfhid.c:64) and
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--bit 31 (cmdlfhid.c:66).
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preamble = bor(0, lshift(1, 5))
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bits = bor(bits, lshift(1, 26))
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--Since the lua library bit32 is (obviously) 32 bits and we need to
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--encode 36 bits to properly do a 26 bit tag with the preamble we need
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--to create a higher order and lower order component which we will
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--then assemble in the return. The math above defines the proper
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--encoding as per HID/Weigand/etc. These bit flips are due to the
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--format length check on bit 38 (cmdlfhid.c:64) and
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--bit 31 (cmdlfhid.c:66).
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preamble = bor(0, lshift(1, 5))
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bits = bor(bits, lshift(1, 26))
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return ("%04x%08x"):format(preamble, bits)
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return ("%04x%08x"):format(preamble, bits)
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end
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---
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-- main
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local function main(args)
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print( string.rep('--',20) )
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print( string.rep('--',20) )
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print()
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if #args == 0 then return help() end
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--I really wish a better getopt function would be brought in supporting
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--long arguments, but it seems this library was chosen for BSD style
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--compatibility
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for o, a in getopt.getopt(args, 'f:b:c:h') do
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if o == 'h' then return help() end
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if o == 'f' then
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if isempty(a) then
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print("You did not supply a facility code, using 0")
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facility = 0
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else
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facility = a
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end
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end
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if o == 'b' then
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if isempty(a) then return oops("You must supply the flag -b (base id)") end
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baseid = a
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end
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if o == 'c' then
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if isempty(a) then return oops("You must supply the flag -c (count)") end
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count = a
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end
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end
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print( string.rep('--',20) )
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print( string.rep('--',20) )
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print()
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--Due to my earlier complaints about how this specific getopt library
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--works, specifying ":" does not enforce supplying a value, thus we
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--need to do these checks all over again.
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if isempty(baseid) then return oops("You must supply the flag -b (base id)") end
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if isempty(count) then return oops("You must supply the flag -c (count)") end
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if #args == 0 then return help() end
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--If the facility ID is non specified, ensure we code it as zero
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if isempty(facility) then
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print("Using 0 for the facility code as -f was not supplied")
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facility = 0
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end
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--I really wish a better getopt function would be brought in supporting
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--long arguments, but it seems this library was chosen for BSD style
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--compatibility
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for o, a in getopt.getopt(args, 'f:b:c:h') do
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if o == 'h' then return help() end
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if o == 'f' then
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if isempty(a) then
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print("You did not supply a facility code, using 0")
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facility = 0
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else
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facility = a
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end
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end
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if o == 'b' then
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if isempty(a) then return oops("You must supply the flag -b (base id)") end
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baseid = a
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end
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if o == 'c' then
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if isempty(a) then return oops("You must supply the flag -c (count)") end
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count = a
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end
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end
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--The next baseid + count function presents a logic/UX conflict
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--where users specifying -c 1 (count = 1) would try to program two
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--tags. This makes it so that -c 0 & -c 1 both code one tag, and all
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--other values encode the expected amount.
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if tonumber(count) > 0 then count = count - 1 end
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--Due to my earlier complaints about how this specific getopt library
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--works, specifying ":" does not enforce supplying a value, thus we
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--need to do these checks all over again.
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if isempty(baseid) then return oops("You must supply the flag -b (base id)") end
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if isempty(count) then return oops("You must supply the flag -c (count)") end
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endid = baseid + count
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--If the facility ID is non specified, ensure we code it as zero
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if isempty(facility) then
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print("Using 0 for the facility code as -f was not supplied")
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facility = 0
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end
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for cardnum = baseid, endid do
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local card = cardHex(cardnum, facility)
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print("Press enter to program card "..cardnum..":"..facility.." (hex: "..card..")")
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--This would be better with "press any key", but we'll take what we can get.
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io.read()
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core.console( ('lf hid clone %s'):format(card) )
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end
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--The next baseid + count function presents a logic/UX conflict
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--where users specifying -c 1 (count = 1) would try to program two
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--tags. This makes it so that -c 0 & -c 1 both code one tag, and all
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--other values encode the expected amount.
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if tonumber(count) > 0 then count = count - 1 end
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endid = baseid + count
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for cardnum = baseid, endid do
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local card = cardHex(cardnum, facility)
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print("Press enter to program card "..cardnum..":"..facility.." (hex: "..card..")")
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--This would be better with "press any key", but we'll take what we can get.
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io.read()
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core.console( ('lf hid clone %s'):format(card) )
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end
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end
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main(args)
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