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sys_patch_detect: Revise AMFI logic

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Currently the AMFI level requirement will be determined by the GPU needed.
- Intel iGPUs: Only Library Validation patch (`_cs_require_lv`)
- Nvidia Kepler and GCN: Full AMFI needs to be disabled (`amfi=0x80`)

If you have a mixed GPU system, the highest patch requirement will be chosen (ie. `amfi=0x80` on iMac15,1)
This commit is contained in:
Mykola Grymalyuk
2022-09-14 07:57:41 -06:00
parent 7fc2d478f2
commit 012a629100
3 changed files with 42 additions and 16 deletions
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40
resources/sys_patch_detect.py
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@@ -4,7 +4,7 @@
# Copyright (C) 2020-2022, Dhinak G, Mykola Grymalyuk
import subprocess
from resources import constants, device_probe, utilities, sys_patch_helpers
from resources import constants, device_probe, utilities, sys_patch_helpers, amfi_detect
from data import model_array, os_data, sip_data, sys_patch_dict
class detect_root_patch:
@@ -36,6 +36,7 @@ class detect_root_patch:
# Patch Requirements
self.amfi_must_disable = False
self.amfi_shim_bins = False
self.supports_metal = False
self.needs_nv_web_checks = False
self.requires_root_kc = False
@@ -63,6 +64,7 @@ class detect_root_patch:
if self.constants.detected_os > non_metal_os:
self.nvidia_tesla = True
self.amfi_must_disable = True
self.amfi_shim_bins = True
self.legacy_keyboard_backlight = self.check_legacy_keyboard_backlight()
self.requires_root_kc = True
elif gpu.arch == device_probe.NVIDIA.Archs.Kepler and self.constants.force_nv_web is False:
@@ -81,7 +83,9 @@ class detect_root_patch:
):
self.kepler_gpu = True
self.supports_metal = True
self.amfi_must_disable = True
if self.constants.detected_os > os_data.os_data.ventura:
self.amfi_must_disable = True
self.amfi_shim_bins = True
elif gpu.arch in [
device_probe.NVIDIA.Archs.Fermi,
device_probe.NVIDIA.Archs.Kepler,
@@ -91,17 +95,20 @@ class detect_root_patch:
if self.constants.detected_os > os_data.os_data.mojave:
self.nvidia_web = True
self.amfi_must_disable = True
self.amfi_shim_bins = True
self.needs_nv_web_checks = True
self.requires_root_kc = True
elif gpu.arch == device_probe.AMD.Archs.TeraScale_1:
if self.constants.detected_os > non_metal_os:
self.amd_ts1 = True
self.amfi_must_disable = True
self.amfi_shim_bins = True
self.requires_root_kc = True
elif gpu.arch == device_probe.AMD.Archs.TeraScale_2:
if self.constants.detected_os > non_metal_os:
self.amd_ts2 = True
self.amfi_must_disable = True
self.amfi_shim_bins = True
self.requires_root_kc = True
elif gpu.arch in [
device_probe.AMD.Archs.Legacy_GCN_7000,
@@ -115,34 +122,46 @@ class detect_root_patch:
self.legacy_gcn = True
self.supports_metal = True
self.requires_root_kc = True
self.amfi_must_disable = True
if self.constants.detected_os > os_data.os_data.ventura:
self.amfi_must_disable = True
self.amfi_shim_bins = True
elif gpu.arch == device_probe.Intel.Archs.Iron_Lake:
if self.constants.detected_os > non_metal_os:
self.iron_gpu = True
self.amfi_must_disable = True
self.amfi_shim_bins = True
self.legacy_keyboard_backlight = self.check_legacy_keyboard_backlight()
self.requires_root_kc = True
elif gpu.arch == device_probe.Intel.Archs.Sandy_Bridge:
if self.constants.detected_os > non_metal_os:
self.sandy_gpu = True
self.amfi_must_disable = True
self.amfi_shim_bins = True
self.legacy_keyboard_backlight = self.check_legacy_keyboard_backlight()
self.requires_root_kc = True
elif gpu.arch == device_probe.Intel.Archs.Ivy_Bridge:
if self.constants.detected_os > os_data.os_data.big_sur:
self.ivy_gpu = True
if self.constants.detected_os > os_data.os_data.ventura:
self.amfi_must_disable = True
self.supports_metal = True
elif gpu.arch == device_probe.Intel.Archs.Haswell:
if self.constants.detected_os > os_data.os_data.monterey:
self.haswell_gpu = True
if self.constants.detected_os > os_data.os_data.ventura:
self.amfi_must_disable = True
self.supports_metal = True
elif gpu.arch == device_probe.Intel.Archs.Broadwell:
if self.constants.detected_os > os_data.os_data.monterey:
self.broadwell_gpu = True
if self.constants.detected_os > os_data.os_data.ventura:
self.amfi_must_disable = True
self.supports_metal = True
elif gpu.arch == device_probe.Intel.Archs.Skylake:
if self.constants.detected_os > os_data.os_data.monterey:
self.skylake_gpu = True
if self.constants.detected_os > os_data.os_data.ventura:
self.amfi_must_disable = True
self.supports_metal = True
if self.supports_metal is True:
# Avoid patching Metal and non-Metal GPUs if both present, prioritize Metal GPU
@@ -320,12 +339,25 @@ class detect_root_patch:
return self.root_patch_dict
def get_amfi_level_needed(self):
if self.amfi_must_disable is True:
if self.constants.detected_os > os_data.os_data.catalina:
if self.constants.detected_os >= os_data.os_data.ventura:
if self.amfi_shim_bins is True:
# Currently we require AMFI outright disabled
# in Ventura to work with shim'd binaries
return 3
return 1
return 0
def verify_patch_allowed(self, print_errors=False):
sip_dict = self.check_sip()
sip = sip_dict[0]
sip_value = sip_dict[1]
self.sip_enabled, self.sbm_enabled, self.amfi_enabled, self.fv_enabled, self.dosdude_patched = utilities.patching_status(sip, self.constants.detected_os)
self.sip_enabled, self.sbm_enabled, self.fv_enabled, self.dosdude_patched = utilities.patching_status(sip, self.constants.detected_os)
self.amfi_enabled = amfi_detect.amfi_configuration_detection().check_config(self.get_amfi_level_needed())
if self.requires_root_kc is True:
self.missing_kdk = not self.check_kdk()