kern_start: Patch ControlCenter.app

Closes acidanthera/bugtracker#2181
acidanthera · Dec 16, 2022 · 94e29ce · 94e29ce
1 parent edf3706
commit 94e29ce
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diff --git a/Changelog.md b/Changelog.md
@@ -1,5 +1,9 @@
 FeatureUnlock Changelog
 ======================
+### v1.1.2
+- Add AirPlay to Mac unlocking inside Control Center.app
+  - Applicable for macOS Ventura
+
 ### v1.1.1
 - Resolved Macmini8,1 patch regression from 1.1.0
 - Resolved iPad Sidecar patch regression from 1.1.0

diff --git a/FeatureUnlock/kern_start.cpp b/FeatureUnlock/kern_start.cpp
@@ -77,6 +77,7 @@ bool has_applied_nightshift_patch;
 bool has_applied_airplay_to_mac_vmm_patch;
 bool has_applied_iPad_sidecar_patch;
 bool has_applied_uc_app_patch;
+bool has_applied_cc_app_patch;
 
 
 // Misc variables
@@ -324,6 +325,15 @@ static void patched_cs_validate_page(vnode_t vp, memory_object_t pager, memory_o
                     }
                 }
             }
+            if (!has_applied_cc_app_patch && host_needs_airplay_to_mac_vmm_patch) {
+                if (UNLIKELY(strcmp(path, controlCenterPath) == 0)) {
+                    patch_result = searchAndPatch(data, PAGE_SIZE, path, kGenericVmmOriginal, kGenericVmmPatched, "Control Center (app)", false);
+                    if (patch_result) {
+                        has_applied_cc_app_patch = true;
+                        return;
+                    }
+                }
+            }
         }
     }
 }

diff --git a/FeatureUnlock/kern_usr_patch.hpp b/FeatureUnlock/kern_usr_patch.hpp
@@ -66,3 +66,19 @@ static const uint8_t kUniversalControlReplace[] = {
     0x4E, 0x61, 0x63, 0x6D, 0x69, 0x6E, 0x69, 0x37, 0x2C, 0x31, 0x00,
     0x4E, 0x61, 0x63, 0x50, 0x72, 0x6F, 0x36, 0x2C, 0x31
 };
+
+#pragma mark - ControlCenter Patch Set
+
+// With macOS 13.0, Apple added additional AirPlay to Mac blacklists inside of ControlCenter.app
+// Specifically a kern.hv_vmm_present check
+static const char *controlCenterPath = "/System/Library/CoreServices/ControlCenter.app/Contents/MacOS/ControlCenter";
+
+static const uint8_t kGenericVmmOriginal[] = {
+    // kern.hv_vmm_present
+    0x6B, 0x65, 0x72, 0x6E, 0x2E, 0x68, 0x76, 0x5F, 0x76, 0x6D, 0x6D, 0x5F, 0x70, 0x72, 0x65, 0x73, 0x65, 0x6E, 0x74
+};
+
+static const uint8_t kGenericVmmPatched[] = {
+    // kern.hv_acidanthera
+    0x6B, 0x65, 0x72, 0x6E, 0x2E, 0x68, 0x76, 0x5F, 0x61, 0x63, 0x69, 0x64, 0x61, 0x6E, 0x74, 0x68, 0x65, 0x72, 0x61
+};