Initial commit.

1 files changed, 429 insertions, 0 deletions

diff --git a/unlocker.py b/unlocker.py
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+++ b/unlocker.py
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+#!/usr/bin/env python
+"""
+The MIT License (MIT)
+
+Copyright (c) 2014-2016 Dave Parsons & Sam Bingner
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the 'Software'), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+
+vSMC Header Structure
+Offset  Length  Struct Type Description
+----------------------------------------
+0x00/00 0x08/08 Q      ptr  Offset to key table
+0x08/08 0x04/4  I      int  Number of private keys
+0x0C/12 0x04/4  I      int  Number of public keys
+
+vSMC Key Data Structure
+Offset  Length  Struct Type Description
+----------------------------------------
+0x00/00 0x04/04 4s     int  Key name (byte reversed e.g. #KEY is YEK#)
+0x04/04 0x01/01 B      byte Length of returned data
+0x05/05 0x04/04 4s     int  Data type (byte reversed e.g. ui32 is 23iu)
+0x09/09 0x01/01 B      byte Flag R/W
+0x0A/10 0x06/06 6x     byte Padding
+0x10/16 0x08/08 Q      ptr  Internal VMware routine
+0x18/24 0x30/48 48B    byte Data
+"""
+
+from __future__ import print_function
+import codecs
+import os
+import six
+import struct
+import subprocess
+import sys
+
+if sys.version_info < (2, 7):
+    sys.stderr.write('You need Python 2.7 or later\n')
+    sys.exit(1)
+
+# Setup imports depending on whether IronPython or CPython
+if sys.platform == 'win32' \
+        or sys.platform == 'cli':
+    from _winreg import *
+
+
+def bytetohex(data):
+    if sys.version_info > (3, 0):
+        # Python 3 code in this block
+        return "".join("{:02X} ".format(c) for c in data)
+    else:
+        # Python 2 code in this block
+        return "".join("{:02X} ".format(ord(c)) for c in data)
+
+
+def joinpath(folder, filename):
+    return os.path.join(folder, filename)
+
+
+def printkey(i, offset, smc_key, smc_data):
+    print(str(i + 1).zfill(3)
+          + ' ' + hex(offset)
+          + ' ' + smc_key[0][::-1].decode('UTF-8')
+          + ' ' + str(smc_key[1]).zfill(2)
+          + ' ' + smc_key[2][::-1].replace(b'\x00', b' ').decode('UTF-8')
+          + ' ' + '{0:#0{1}x}'.format(smc_key[3], 4)
+          + ' ' + hex(smc_key[4])
+          + ' ' + bytetohex(smc_data))
+
+
+def set_bit(value, bit):
+    return value | (1 << bit)
+
+
+def clear_bit(value, bit):
+    return value & ~(1 << bit)
+
+
+def test_bit(value, bit):
+    return value & bit
+
+
+E_CLASS64 = 2
+E_SHT_RELA = 4
+
+
+def patchelf(f, oldoffset, newoffset):
+    f.seek(0)
+    magic = f.read(4)
+    if not magic == b'\x7fELF':
+        raise Exception('Magic number does not match')
+
+    ei_class = struct.unpack('=B', f.read(1))[0]
+    if ei_class != E_CLASS64:
+        raise Exception('Not 64bit elf header: ' + ei_class)
+
+    f.seek(40)
+    e_shoff = struct.unpack('=Q', f.read(8))[0]
+    f.seek(58)
+    e_shentsize = struct.unpack('=H', f.read(2))[0]
+    e_shnum = struct.unpack('=H', f.read(2))[0]
+    e_shstrndx = struct.unpack('=H', f.read(2))[0]
+
+    print('e_shoff: 0x{:x} e_shentsize: 0x{:x} e_shnum:0x{:x} e_shstrndx:0x{:x}'.format(e_shoff, e_shentsize,
+                                                                                        e_shnum, e_shstrndx))
+
+    for i in range(0, e_shnum):
+        f.seek(e_shoff + i * e_shentsize)
+        e_sh = struct.unpack('=LLQQQQLLQQ', f.read(e_shentsize))
+        # e_sh_name = e_sh[0]
+        e_sh_type = e_sh[1]
+        e_sh_offset = e_sh[4]
+        e_sh_size = e_sh[5]
+        e_sh_entsize = e_sh[9]
+        if e_sh_type == E_SHT_RELA:
+            e_sh_nument = int(e_sh_size / e_sh_entsize)
+            # print 'RELA at 0x{:x} with {:d} entries'.format(e_sh_offset, e_sh_nument)
+            for j in range(0, e_sh_nument):
+                f.seek(e_sh_offset + e_sh_entsize * j)
+                rela = struct.unpack('=QQq', f.read(e_sh_entsize))
+                r_offset = rela[0]
+                r_info = rela[1]
+                r_addend = rela[2]
+                if r_addend == oldoffset:
+                    r_addend = newoffset
+                    f.seek(e_sh_offset + e_sh_entsize * j)
+                    f.write(struct.pack('=QQq', r_offset, r_info, r_addend))
+                    print('Relocation modified at: ' + hex(e_sh_offset + e_sh_entsize * j))
+
+
+def patchkeys(f, key):
+    # Setup struct pack string
+    key_pack = '=4sB4sB6xQ'
+    # smc_old_memptr = 0
+    smc_new_memptr = 0
+
+    # Do Until OSK1 read
+    i = 0
+    while True:
+
+        # Read key into struct str and data byte str
+        offset = key + (i * 72)
+        f.seek(offset)
+        smc_key = struct.unpack(key_pack, f.read(24))
+        smc_data = f.read(smc_key[1])
+
+        # Reset pointer to beginning of key entry
+        f.seek(offset)
+
+        if smc_key[0] == b'SKL+':
+            # Use the +LKS data routine for OSK0/1
+            smc_new_memptr = smc_key[4]
+            print('+LKS Key: ')
+            printkey(i, offset, smc_key, smc_data)
+
+        elif smc_key[0] == b'0KSO':
+            # Write new data routine pointer from +LKS
+            print('OSK0 Key Before:')
+            printkey(i, offset, smc_key, smc_data)
+            # smc_old_memptr = smc_key[4]
+            f.seek(offset)
+            f.write(struct.pack(key_pack, smc_key[0], smc_key[1], smc_key[2], smc_key[3], smc_new_memptr))
+            f.flush()
+
+            # Write new data for key
+            f.seek(offset + 24)
+            smc_new_data = codecs.encode('bheuneqjbexolgurfrjbeqfthneqrqcy', 'rot_13')
+            f.write(smc_new_data.encode('UTF-8'))
+            f.flush()
+
+            # Re-read and print key
+            f.seek(offset)
+            smc_key = struct.unpack(key_pack, f.read(24))
+            smc_data = f.read(smc_key[1])
+            print('OSK0 Key After:')
+            printkey(i, offset, smc_key, smc_data)
+
+        elif smc_key[0] == b'1KSO':
+            # Write new data routine pointer from +LKS
+            print('OSK1 Key Before:')
+            printkey(i, offset, smc_key, smc_data)
+            smc_old_memptr = smc_key[4]
+            f.seek(offset)
+            f.write(struct.pack(key_pack, smc_key[0], smc_key[1], smc_key[2], smc_key[3], smc_new_memptr))
+            f.flush()
+
+            # Write new data for key
+            f.seek(offset + 24)
+            smc_new_data = codecs.encode('rnfrqbagfgrny(p)NccyrPbzchgreVap', 'rot_13')
+            f.write(smc_new_data.encode('UTF-8'))
+            f.flush()
+
+            # Re-read and print key
+            f.seek(offset)
+            smc_key = struct.unpack(key_pack, f.read(24))
+            smc_data = f.read(smc_key[1])
+            print('OSK1 Key After:')
+            printkey(i, offset, smc_key, smc_data)
+
+            # Finished so get out of loop
+            break
+
+        else:
+            pass
+
+        i += 1
+    return smc_old_memptr, smc_new_memptr
+
+
+def patchsmc(name, sharedobj):
+    with open(name, 'r+b') as f:
+
+        smc_old_memptr = 0
+        smc_new_memptr = 0
+
+        # Read file into string variable
+        vmx = f.read()
+
+        print('File: ' + name)
+
+        # Setup hex string for vSMC headers
+        # These are the private and public key counts
+        smc_header_v0 = b'\xF2\x00\x00\x00\xF0\x00\x00\x00'
+        smc_header_v1 = b'\xB4\x01\x00\x00\xB0\x01\x00\x00'
+
+        # Setup hex string for #KEY key
+        key_key = b'\x59\x45\x4B\x23\x04\x32\x33\x69\x75'
+
+        # Setup hex string for $Adr key
+        adr_key = b'\x72\x64\x41\x24\x04\x32\x33\x69\x75'
+
+        # Find the vSMC headers
+        smc_header_v0_offset = vmx.find(smc_header_v0) - 8
+        smc_header_v1_offset = vmx.find(smc_header_v1) - 8
+
+        # Find '#KEY' keys
+        smc_key0 = vmx.find(key_key)
+        smc_key1 = vmx.rfind(key_key)
+
+        # Find '$Adr' key only V1 table
+        smc_adr = vmx.find(adr_key)
+
+        # Print vSMC0 tables and keys
+        print('appleSMCTableV0 (smc.version = "0")')
+        print('appleSMCTableV0 Address      : ' + hex(smc_header_v0_offset))
+        print('appleSMCTableV0 Private Key #: 0xF2/242')
+        print('appleSMCTableV0 Public Key  #: 0xF0/240')
+
+        if (smc_adr - smc_key0) != 72:
+            print('appleSMCTableV0 Table        : ' + hex(smc_key0))
+            smc_old_memptr, smc_new_memptr = patchkeys(f, smc_key0)
+        elif (smc_adr - smc_key1) != 72:
+            print('appleSMCTableV0 Table        : ' + hex(smc_key1))
+            smc_old_memptr, smc_new_memptr = patchkeys(f, smc_key1)
+
+        print()
+
+        # Print vSMC1 tables and keys
+        print('appleSMCTableV1 (smc.version = "1")')
+        print('appleSMCTableV1 Address      : ' + hex(smc_header_v1_offset))
+        print('appleSMCTableV1 Private Key #: 0x01B4/436')
+        print('appleSMCTableV1 Public Key  #: 0x01B0/432')
+
+        if (smc_adr - smc_key0) == 72:
+            print('appleSMCTableV1 Table        : ' + hex(smc_key0))
+            smc_old_memptr, smc_new_memptr = patchkeys(f, smc_key0)
+        elif (smc_adr - smc_key1) == 72:
+            print('appleSMCTableV1 Table        : ' + hex(smc_key1))
+            smc_old_memptr, smc_new_memptr = patchkeys(f, smc_key1)
+
+        print()
+
+        # Find matching RELA record in .rela.dyn in ESXi ELF files
+        # This is temporary code until proper ELF parsing written
+        if sharedobj:
+            print('Modifying RELA records from: ' + hex(smc_old_memptr) + ' to ' + hex(smc_new_memptr))
+            patchelf(f, smc_old_memptr, smc_new_memptr)
+
+        # Tidy up
+        f.flush()
+        f.close()
+
+
+def patchbase(name):
+    # Patch file
+    print('GOS Patching: ' + name)
+    f = open(name, 'r+b')
+
+    # Entry to search for in GOS table
+    # Should work for 12 & 14 of Workstation...
+    darwin = b'\x10\x00\x00\x00\x10\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00' \
+             '\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
+
+    # Read file into string variable
+    base = f.read()
+
+    # Loop through each entry and set top bit
+    # 0xBE --> 0xBF (WKS 12)
+    # 0x3E --> 0x3F (WKS 14)
+    offset = 0
+    while offset < len(base):
+        offset = base.find(darwin, offset)
+        if offset == -1:
+            break
+        f.seek(offset + 32)
+        flag = ord(f.read(1))
+        flag = set_bit(flag, 0)
+        flag = chr(flag)
+        f.seek(offset + 32)
+        f.write(flag)
+        print('GOS Patched flag @: ' + hex(offset))
+        offset += 40
+
+    # Tidy up
+    f.flush()
+    f.close()
+    print('GOS Patched: ' + name)
+
+
+def patchvmkctl(name):
+    # Patch file
+    print('smcPresent Patching: ' + name)
+    f = open(name, 'r+b')
+
+    # Read file into string variable
+    vmkctl = f.read()
+    applesmc = vmkctl.find(b'applesmc')
+    f.seek(applesmc)
+    f.write(b'vmkernel')
+
+    # Tidy up
+    f.flush()
+    f.close()
+    print('smcPresent Patched: ' + name)
+
+
+def main():
+    # Work around absent Platform module on VMkernel
+    if os.name == 'nt' or os.name == 'cli':
+        osname = 'windows'
+    else:
+        osname = os.uname()[0].lower()
+
+    vmwarebase = ''
+    libvmkctl32 = ''
+    libvmkctl64 = ''
+    vmx_so = False
+
+    # Setup default paths
+    if osname == 'darwin':
+        vmx_path = '/Applications/VMware Fusion.app/Contents/Library/'
+        vmx = joinpath(vmx_path, 'vmware-vmx')
+        vmx_debug = joinpath(vmx_path, 'vmware-vmx-debug')
+        vmx_stats = joinpath(vmx_path, 'vmware-vmx-stats')
+
+    elif osname == 'linux':
+        vmx_path = '/usr/lib/vmware/bin/'
+        vmx = joinpath(vmx_path, 'vmware-vmx')
+        vmx_debug = joinpath(vmx_path, 'vmware-vmx-debug')
+        vmx_stats = joinpath(vmx_path, 'vmware-vmx-stats')
+        if os.path.isfile('/usr/lib/vmware/lib/libvmwarebase.so/libvmwarebase.so'):
+            vmx_so = True
+            vmwarebase = '/usr/lib/vmware/lib/libvmwarebase.so/libvmwarebase.so'
+        else:
+            vmwarebase = '/usr/lib/vmware/lib/libvmwarebase.so.0/libvmwarebase.so.0'
+
+    elif osname == 'vmkernel':
+        vmx_path = os.path.dirname(os.path.abspath(__file__))
+        vmx = joinpath(vmx_path, '/unlocker/bin/vmx')
+        vmx_debug = joinpath(vmx_path, '/unlocker/bin/vmx-debug')
+        vmx_stats = joinpath(vmx_path, '/unlocker/bin/vmx-stats')
+        vmx_so = True
+        libvmkctl32 = joinpath(vmx_path, '/unlocker/lib/libvmkctl.so')
+        libvmkctl64 = joinpath(vmx_path, '/unlocker/lib64/libvmkctl.so')
+
+    elif osname == 'windows':
+        reg = ConnectRegistry(None, HKEY_LOCAL_MACHINE)
+        key = OpenKey(reg, r'SOFTWARE\Wow6432Node\VMware, Inc.\VMware Workstation')
+        vmwarebase_path = QueryValueEx(key, 'InstallPath')[0]
+        vmx_path = QueryValueEx(key, 'InstallPath64')[0]
+        vmx = joinpath(vmx_path, 'vmware-vmx.exe')
+        vmx_debug = joinpath(vmx_path, 'vmware-vmx-debug.exe')
+        vmx_stats = joinpath(vmx_path, 'vmware-vmx-stats.exe')
+        vmwarebase = joinpath(vmwarebase_path, 'vmwarebase.dll')
+
+    else:
+        print('Unknown Operating System: ' + osname)
+        return
+
+    # Patch the vmx executables skipping stats version for Player
+    patchsmc(vmx, vmx_so)
+    patchsmc(vmx_debug, vmx_so)
+    if os.path.isfile(vmx_stats):
+        patchsmc(vmx_stats, vmx_so)
+
+    # Patch vmwarebase for Workstation and Player
+    # Not required on Fusion or ESXi as table already has correct flags
+    if vmwarebase != '':
+        patchbase(vmwarebase)
+    else:
+        pass
+
+    # Patch libvmkctl to return Apple SMC present
+    if osname == 'vmkernel':
+        # Patch ESXi 6.0 and 6.5 32 bit .so
+        patchvmkctl(libvmkctl32)
+
+        # Patch ESXi 6.5 64 bit .so
+        if os.path.isfile(libvmkctl64):
+            patchvmkctl(libvmkctl64)
+
+
+if __name__ == '__main__':
+    main()