Changes

Unnamed unix sockets created with <code>socketpair()</code> system call can be dumped and restored.

Unnamed unix sockets created with <code>socketpair()</code> system call can be dumped and restored.

On dump, put inode of this socket in <code>--ext-unix-sk</code> option, for example:

On dump, tell inode of this socket to CRIU, like this

  criu dump -D images -o dump.log -v4 --external unix[11890815] -t 16528

  criu dump -D images -o dump.log -v4 --external unix[11890815] -t 16528