=============== Network Support

.. toctree:: :maxdepth: 1

sixlowpan.rst socketcan.rst pkt.rst ipfilter.rst nat.rst netdev.rst netdriver.rst netguardsize.rst netlink.rst slip.rst wqueuedeadlocks.rst tcp_network_perf.rst delay_act_and_tcp_perf.rst

net Directory Structure ::

nuttx/ | - net/ | +- arp - Address resolution protocol (IPv4) +- bluetooth - PF_BLUETOOTH socket interface +- can - SocketCAN +- devif - Stack/device interface layer +- icmp - Internet Control Message Protocol (IPv4) +- icmpv6 - Internet Control Message Protocol (IPv6) +- ieee802154 - PF_IEEE802154 socket interface +- igmp - IGMPv2 client +- inet - PF_INET/PF_INET6 socket interface +- ipforward - IP forwarding logic +- ipfrag - Fragmentation and reassembly +- local - Unix domain (local) sockets +- mld - Multicast Listener Discovery (MLD) +- nat - Network Address Translation (NAT) +- neighbor - Neighbor Discovery Protocol (IPv6) +- netdev - Socket network device interface +- netfilter - Iptables Interface +- netlink - Netlink IPC socket interface +- pkt - "Raw" packet socket support +- procfs - net devices PROCFS support +- route - Routing table support +- rpmsg - Rpmsg domain (remote) sockets +- sixlowpan - 6LoWPAN implementation +- socket - BSD socket interface +- tcp - Transmission Control Protocol +- udp - User Datagram Protocol +- usrsock - User socket API for user-space networking stack - utils - Miscellaneous utility functions

+-------------------------------------------------------------------++------------------------+
|                     Application layer                             || usrsock daemon         |
+-------------------------------------------------------------------++------------------------+
+-------------------------------------------------------------------++----------------+ +-----+
|                   Socket layer (socket/)                          || /dev/usrsock   | |     |
+-------------------------------------------------------------------++----------------+ |     |
+------------++--------------------------------------------------++-------------------+ |     |
|  Network   || Protocol stacks (arp, ipv6, icmp, pkt, tcp, udp) || usrsock/          | |     |
|   Device   |+--------------------------------------------------++-------------------+ |     |
| Interface  |+------------------------------------++---------------------------------+ |     |
| (netdev/)  ||  Network Device Interface (devif/) || Utilities                       | |     |
+------------++------------------------------------++---------------------------------+ |     |
+----------------------------------------------------------------+                      |     |
|                    Network Device Drivers                      |                      | HAL |
+----------------------------------------------------------------+                      +-----+
+----------------------------------------------------------------+ +--------------------------+
|                    Networking Hardware                         | |  Hardware TCP/IP Stack   |
+----------------------------------------------------------------+ +--------------------------+