Full but still broken rework of everything

vdm-module/customize.sh

@@ -0,0 +1,33 @@
+#!/system/bin/sh
+# CamSwapper VDM Privilege Module - Installation customization
+# Sourced by KernelSU/Magisk installer after files are extracted.
+
+SKIPUNZIP=0
+
+# Set permissions
+set_perm_recursive "$MODPATH/system" 0 0 0755 0644
+set_perm "$MODPATH/system/priv-app/CamSwapper/CamSwapper.apk" 0 0 0644
+set_perm "$MODPATH/system/etc/permissions/privapp-permissions-camswapper.xml" 0 0 0644
+set_perm "$MODPATH/post-fs-data.sh" 0 0 0755
+set_perm "$MODPATH/service.sh" 0 0 0755
+set_perm "$MODPATH/uninstall.sh" 0 0 0755
+
+# Remove user-installed version to avoid package conflict
+if command -v pm >/dev/null 2>&1; then
+    pm uninstall com.nothing.camera2magic 2>/dev/null && \
+        ui_print "- Removed user-installed CamSwapper"
+fi
+
+ui_print ""
+ui_print "  CamSwapper VDM Privilege Module"
+ui_print "  ──────────────────────────────"
+ui_print "  Installed CamSwapper as privileged system app"
+ui_print "  Granted: REQUEST_COMPANION_PROFILE_APP_STREAMING"
+ui_print "  Granted: REQUEST_COMPANION_SELF_MANAGED"
+ui_print "  Granted: CREATE_VIRTUAL_DEVICE"
+ui_print ""
+ui_print "  After reboot:"
+ui_print "    1. Open CamSwapper (it's now a system app)"
+ui_print "    2. Grant CAMERA + POST_NOTIFICATIONS permissions"
+ui_print "    3. Start virtual camera"
+ui_print ""

vdm-module/module.prop

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+id=camswapper-vdm
+name=CamSwapper VDM Privilege Module
+version=3.2
+versionCode=8
+author=CamSwapper
+description=Grants CamSwapper privileged system permissions via priv-app overlay, enabling VirtualDeviceManager (VDM) API access for system-level virtual camera creation. Compatible with KernelSU.

vdm-module/overlay-setup.sh

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+#!/system/bin/sh
+# Set up overlay mount for CamSwapper priv-app
+
+MODDIR=/data/adb/modules/camswapper-vdm
+
+# Mount tmpfs for our overlay upperdir
+mount -t tmpfs tmpfs /mnt/camswapper_overlay
+
+# Create directory structure
+mkdir -p /mnt/camswapper_overlay/upper/system/priv-app/CamSwapper
+mkdir -p /mnt/camswapper_overlay/work
+
+# Copy APK from module (it's already there from module packaging)
+# No, we need to copy it - but the module file is readable by root
+cp "$MODDIR/system/priv-app/CamSwapper/CamSwapper.apk" /mnt/camswapper_overlay/upper/system/priv-app/CamSwapper/
+
+# Set proper permissions and SELinux context
+chmod 755 /mnt/camswapper_overlay/upper/system/priv-app/CamSwapper
+chmod 644 /mnt/camswapper_overlay/upper/system/priv-app/CamSwapper/CamSwapper.apk
+chcon -R u:object_r:system_file:s0 /mnt/camswapper_overlay/upper/system/priv-app
+
+# Mount overlay on /system/priv-app
+mount -t overlay overlay \
+  -o lowerdir=/system/priv-app,upperdir=/mnt/camswapper_overlay/upper/system/priv-app,workdir=/mnt/camswapper_overlay/work \
+  /system/priv-app
+
+echo "Overlay mount result: $?"
+ls /system/priv-app/CamSwapper/ 2>&1

vdm-module/post-fs-data.sh

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+#!/system/bin/sh
+MODDIR="${0%/*}"
+
+OVERLAY_UPPER=/mnt/.cswp_overlay
+OVERLAY_WORK=/mnt/.cswp_work
+OVERLAY_WORK_ETC=/mnt/.cswp_work_etc
+
+# Clean any stale workdir state from previous mounts. OverlayFS workdirs MUST be
+# pristine — if left dirty after a lazy umount (umount -l), the kernel gets confused.
+rm -rf "$OVERLAY_WORK" "$OVERLAY_WORK_ETC"
+mkdir -p "$OVERLAY_WORK" "$OVERLAY_WORK_ETC"
+mkdir -p "$OVERLAY_UPPER/system/priv-app/CamSwapper"
+mkdir -p "$OVERLAY_UPPER/system/etc/permissions"
+
+# Copy APK and privapp permissions XML to overlay upper dir.
+# Android 16 requires privileged permission allowlisting — without the privapp XML,
+# system_server FATAL EXCEPTION crashes on boot.
+cp "$MODDIR/system/priv-app/CamSwapper/CamSwapper.apk" \
+   "$OVERLAY_UPPER/system/priv-app/CamSwapper/"
+cp "$MODDIR/system/etc/permissions/privapp-permissions-camswapper.xml" \
+   "$OVERLAY_UPPER/system/etc/permissions/"
+
+# Set permissions and SELinux context
+chmod 755 "$OVERLAY_UPPER/system/priv-app/CamSwapper"
+chmod 644 "$OVERLAY_UPPER/system/priv-app/CamSwapper/CamSwapper.apk"
+chmod 644 "$OVERLAY_UPPER/system/etc/permissions/privapp-permissions-camswapper.xml"
+chcon -R u:object_r:system_file:s0 "$OVERLAY_UPPER/system"
+
+# Mount overlay on /system/priv-app so PackageManager sees CamSwapper as priv-app
+mount -t overlay overlay \
+  -o lowerdir=/system/priv-app,upperdir="$OVERLAY_UPPER/system/priv-app",workdir="$OVERLAY_WORK" \
+  /system/priv-app
+
+# Mount overlay on /system/etc/permissions with its own workdir so SystemConfig
+# finds the privapp permissions XML during early boot.
+mkdir -p "$OVERLAY_WORK_ETC"
+mount -t overlay overlay \
+  -o lowerdir=/system/etc/permissions,upperdir="$OVERLAY_UPPER/system/etc/permissions",workdir="$OVERLAY_WORK_ETC" \
+  /system/etc/permissions

vdm-module/sepolicy.rule

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+# Allow privileged app to use VirtualDeviceManager Binder service
+allow priv_app virtualdevice_service:service_manager find;
+allow priv_app virtualdevice_service:dir { search };
+allow priv_app virtualdevice_service:file { read open };

vdm-module/service.sh

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+#!/system/bin/sh
+MODDIR="${0%/*}"
+
+# Wait for boot to complete
+while [ "$(getprop sys.boot_completed)" != 1 ]; do
+    /system/bin/sleep 1
+done
+
+# Clean up user-installed version if it's still around
+INSTALL_PATH=$(pm path com.nothing.camera2magic 2>/dev/null | grep package: | head -1)
+if echo "$INSTALL_PATH" | grep -q "/data/app/"; then
+    pm uninstall com.nothing.camera2magic 2>/dev/null
+fi
+
+# --- Diagnostics ---
+LOG_TAG="CamSwapperModule"
+log -t "$LOG_TAG" "=== CamSwapper VDM module service.sh ==="
+
+# Verify overlay visibility
+for f in \
+    /system/priv-app/CamSwapper/CamSwapper.apk \
+    /system/etc/permissions/privapp-permissions-camswapper.xml; do
+    if [ -f "$f" ]; then
+        log -t "$LOG_TAG" "OK: $f exists"
+        ls -la "$f" 2>&1 | log -t "$LOG_TAG"
+    else
+        log -t "$LOG_TAG" "MISSING: $f NOT FOUND"
+    fi
+done
+
+# Show mounts under /system
+mount | grep " /system" | log -t "$LOG_TAG"

vdm-module/system.prop

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+# CamSwapper VDM Module - system properties (optional)
+# VirtualDeviceManager is enabled by default on Android 14+

vdm-module/system/etc/permissions/privapp-permissions-camswapper.xml

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<permissions>
+    <!-- Grant privileged permissions to CamSwapper for VDM API access.
+         These permissions are signature|privileged level, requiring the app
+         to be installed as a privileged system app (in /system/priv-app/). -->
+    <privapp-permissions package="com.nothing.camera2magic">
+        <permission name="android.permission.REQUEST_COMPANION_PROFILE_APP_STREAMING"/>
+        <permission name="android.permission.REQUEST_COMPANION_SELF_MANAGED"/>
+        <permission name="android.permission.CREATE_VIRTUAL_DEVICE"/>
+    </privapp-permissions>
+</permissions>

vdm-module/uninstall.sh

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+#!/system/bin/sh
+# CamSwapper VDM Privilege Module - Uninstall script
+# Removes the privileged system app entry from package manager.
+
+# Remove the system app entry from package manager
+if command -v pm >/dev/null 2>&1; then
+    pm uninstall com.nothing.camera2magic 2>/dev/null
+fi