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chg: 'script run read_pwd_mem' - now can correctly deal with more than 4096 bytes when printing mifare classic keys

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This commit is contained in:
Chris 2019-07-14 22:52:34 +02:00
parent 55602bf833
commit 0a845df8c3
1 changed files with 10 additions and 12 deletions
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22
client/scripts/read_pwd_mem.lua
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@ -81,18 +81,19 @@ local function main(args)
if o == 'o' then offset = tonumber(a) end
-- num of bytes to read
if o == 'l' then length = tonumber(a) end
if o == 'l' then
length = tonumber(a)
if length < 0 or length > 256 then
return oops('Error: Length is not valid. Must be less than 256')
end
end
-- keylength
if o == 'k' then keylength = tonumber(a); usedkey = true end
if o == 'm' then keylength =6; usedkey = true; offset = 0x3F000-0x6000; end
if o == 't' then keylength =4; usedkey = true; offset = 0x3F000-0x3000; end
if o == 'i' then keylength =8; usedkey = true; offset = 0x3F000-0x4000; end
end
if length < 0 or length > 256 then
return oops('Error: Length is not valid. Must be less than 256')
if o == 'm' then keylength = 6; usedkey = true; length = 8192; offset = 0x3F000-0x6000; end
if o == 't' then keylength = 4; usedkey = true; length = 4096; offset = 0x3F000-0x3000; end
if o == 'i' then keylength = 8; usedkey = true; length = 4096; offset = 0x3F000-0x4000; end
end
if (offset < 0) or (offset % 4 ~= 0) then
@ -102,9 +103,7 @@ local function main(args)
print('Memory offset', offset)
print('Length ', length)
print('Key length ', keylength)
print( string.rep('--',20) )
if usedkey then length = 4096 end
print( string.rep('--', 20) )
data, err = core.GetFromFlashMem(offset, length)
if err then return oops(err) end
@ -116,7 +115,6 @@ local function main(args)
local kl = keylength * 2
for i = 1, keys do
key = string.sub(s, (i - 1) * kl + 1, i * kl )
print(string.format('[%02d] %s',i, key))
end