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