Fix symlink handling with Linux sandbox #59
Merged
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This fixes an issue where dangling symbolic links would cause errors while locking down the sandbox since the
mount
syscall is not able to resolve the link.To ensure symlinks are mapped correctly, the Linux sandbox now maps every exception to its canonicalized path, granting access to the symlink's TARGET. Then if necessary the symlink pointing to this file is created to ensure access through the exception's original path.