netdev - Methods to communicate between kernel network stack and user space

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Date:	Thu, 15 Mar 2012 20:00:05 +0500
From:	Syed Muhammad Mohsin Kazmi <08beesmmkazmi@...cs.edu.pk>
To:	Stephen Hemminger <shemminger@...tta.com>, netdev@...r.kernel.org
Subject: Methods to communicate between kernel network stack and user space

Hi,
   Consider the figure below:

                                     +-----------------------------------+
                                      |                                    |
                                      |              TRILL  IS-IS<--|---------
                                      |  Quagga protocol  suite  |         |

+-----------------------------------+         |
       user space                                                              |
         ---------------------------------------------------------------------------|-----
       kernel space                                                           |

             |

+------------------------------------------+   |
                                     |         TCP / UDP / ICMP      |   |
                                     |
          |   |

+------------------------------------------+   |
                                     |               IPv4 /IPv6
     |   |
                                     |
          |   |

+------------------------------------------+  |
                                     |
+-------------+  |   |
                                     |                         |TRILL
  |<--|---
                                     |           Bridging   +------------+  |

+------------------------------------------+
                                     |    Interface between Device    |
                                     |Driver and network stack(dev.c)|

+------------------------------------------+
                                     |            Device Driver            |
                                     |
          |
                                     +-----------------|
|------------------+
                                                        |     |
                                                         NIC


                      As you may know, TRILL uses IS-IS protocol to
calculate pairwise optimal paths and other control plane parameters.
Now i want to communicate between TRILL forwarding in bridging with
TRILL IS-IS in quagga protocol suite to send and receive control plane
packets. I don't know what method should i use for this kind of
communication.

Netlink sockets are appropriate for this purpose?
Or please suggest something else.

Thanks in Advance...!!
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