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| <section id="network-support"> |
| <h1>Network Support<a class="headerlink" href="#network-support" title="Permalink to this heading"></a></h1> |
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| <p><code class="docutils literal notranslate"><span class="pre">net</span></code> Directory Structure</p> |
| <div class="highlight-none notranslate"><div class="highlight"><pre><span></span>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 | |
| +----------------------------------------------------------------+ +--------------------------+ |
| </pre></div> |
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