Add Qualcomm XBL support (#115)

Co-authored-by: Dil4rd <[email protected]>

README.rst

@@ -187,3 +187,4 @@ or extraction from the distribution update mechanism (typically a PE).
 - MSI
 - VMware
 - Apple
+- Qualcomm

uefi_firmware/guids/__init__.py

@@ -3,6 +3,7 @@
 from . import efiguids_dell
 from . import efiguids_lenovo
 from . import efiguids_asrock
+from . import efiguids_qualcomm
 
 from ..utils import aguid
 
@@ -12,6 +13,7 @@
     efiguids_dell.GUIDs,
     efiguids_lenovo.GUIDs,
     efiguids_asrock.GUIDs,
+    efiguids_qualcomm.GUIDS,
 ]
 
 

uefi_firmware/guids/efiguids_qualcomm.py

@@ -0,0 +1,8 @@
+"""
+efiguids_qualcomm.py
+
+"""
+
+GUIDS = {
+    'QC_ZLIB_CUSTOM_DECOMPRESS_GUID': [0x1d301fe9, 0xbe79, 0x4353, 0x91, 0xc2, 0xd2, 0x3b, 0xc9, 0x59, 0xae, 0x0c],
+}

uefi_firmware/structs/uefi_structs.py

@@ -29,12 +29,13 @@
 ]
 
 FIRMWARE_GUIDED_GUIDS = {
-    "LZMA_COMPRESSED":  "ee4e5898-3914-4259-9d6e-dc7bd79403cf",
+    "LZMA_COMPRESSED":    "ee4e5898-3914-4259-9d6e-dc7bd79403cf",
     "LZMA_COMPRESSED_HP": "0ed85e23-f253-413f-a03c-901987b04397",
-    "TIANO_COMPRESSED": "a31280ad-481e-41b6-95e8-127f4c984779",
-    "FIRMWARE_VOLUME":  "24400798-3807-4a42-b413-a1ecee205dd8",
-    #"VOLUME_SECTION":  "367ae684-335d-4671-a16d-899dbfea6b88",
-    "STATIC_GUID":      "fc1bcdb0-7d31-49aa-936a-a4600d9dd083"
+    "TIANO_COMPRESSED":   "a31280ad-481e-41b6-95e8-127f4c984779",
+    "FIRMWARE_VOLUME":    "24400798-3807-4a42-b413-a1ecee205dd8",
+    #"VOLUME_SECTION":    "367ae684-335d-4671-a16d-899dbfea6b88",
+    "STATIC_GUID":        "fc1bcdb0-7d31-49aa-936a-a4600d9dd083",
+    "ZLIB_COMPRESSED_QC": "1d301fe9-be79-4353-91c2-d23bc959ae0c"
 }
 
 FIRMWARE_FREEFORM_GUIDS = {

uefi_firmware/uefi.py

@@ -7,6 +7,7 @@
 import os
 import struct
 import logging
+import zlib
 
 from .base import FirmwareObject, StructuredObject, RawObject, AutoRawObject
 from .utils import *
@@ -631,8 +632,21 @@ def decompress_guid(alg):
         status = True
         if sguid(self.guid) in [FIRMWARE_GUIDED_GUIDS["LZMA_COMPRESSED"], FIRMWARE_GUIDED_GUIDS["LZMA_COMPRESSED_HP"]]:
             status = decompress_guid(efi_compressor.LzmaDecompress)
-        if sguid(self.guid) == FIRMWARE_GUIDED_GUIDS["TIANO_COMPRESSED"]:
+        elif sguid(self.guid) == FIRMWARE_GUIDED_GUIDS["TIANO_COMPRESSED"]:
             status = decompress_guid(efi_compressor.TianoDecompress)
+        elif sguid(self.guid) == FIRMWARE_GUIDED_GUIDS["ZLIB_COMPRESSED_QC"]:
+            try:
+                data = zlib.decompress(self.preamble + self.data, 31)
+                if data is not None:
+                    self.subtype = 0
+                    self.data = data
+                    self.process_subsections()
+                else:
+                    status = False
+                    dlog(self, sguid(self.guid), 'error, empty zlib decompress')
+            except zlib.error as err:
+                status = False
+                dlog(self, sguid(self.guid), 'zlib error: ' + str(err))
         # Todo: check for processing required attribute
         elif sguid(self.guid) == FIRMWARE_GUIDED_GUIDS["STATIC_GUID"]:
             # Todo: verify this (FirmwareFile hack)