9af7fc155d
of pptpgre and ksocket nodes for all calls between two peers. This patch modifies node's API by adding new "session_%04x" hook names support, while keeping backward compatibility. Together with appropriate user-level support (by latest mpd5) it gives huge performance benefits for case of multiple active calls between two peers because of avoiding data duplication and extra socket processing. On my benchmarks I have got more then 10 times speedup for the 200 simultaneous PPTP calls between two peers. In conclusion, it allows now to build effective "clients <=> PAC <=> PNS" setups.