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3aa18ef56e
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Gregory Nutt 3aa18ef56e Addes support for read-only routing tables. Prior to this change, routing tables were only support in RAM and had to be initialized with explicit logic to add the necessary routes to the routing table. With this change, routes may be defined in the pre-initialized, read-only routing table provided by the board-specific logic 
This would be particularly useful, for example, in the case where there is only a single network adaptor and you want all output packets to go to the single adaptor in all cases.  So for that behavior you could add a read-only routing table to the board-specific long that contains a single entry, the default route: 0.0.0.0/0.

Squashed commit of the following:

    net/route:  RAM and ROM routing tables build correctly in all IPv4 and IPv6 configurations.

    net/route: Verify IPv6 ROM route build; Make number of ROM routes a variable, not a configuration item.

    net/route:  Add initial support for ROM-base, read-only routing tables.

    net/route:  Adjust and generalize some structures, rename some functions, and add configuration and build support that will eventually support read-only routing tables.

    net/route:  Some initial though experiments on use of a fixe, read-only routing table
2017-09-28 09:04:31 -06:00
..
arp net/arp/arp_out.c: Fix IGMP Ethernet address computation 2017-09-28 07:50:52 -06:00
devif 6LoWPAN: The original, Contiki-based design used only a single buffer for reassemblying larger packets. This could be a problem issue for hub configurations which really need the capability concurrently reassemble multiple incoming streams concurrently. These was also a design issue in that the reassembly buffer could be corrupted by outgoing packets. The design was extended to support multiple reassembly buffers, each associated with the reassembly tag and source address. This assures that there can be be no corruption of the reassembly once it has started. 2017-08-26 10:00:47 -06:00
icmp Networking: A little more wording changes related to interrupts vs. events 2017-08-29 15:08:38 -06:00
icmpv6 From b7b1826930c7da10416bceebce5d63dc8e4086ca Mon Sep 17 00:00:00 2001 2017-09-24 06:33:05 -06:00
ieee802154 :Remove CONFIG_NET_6LOWPAN_FRAMELEN. In this case where multiple radios are support3d, this may not be a constant. 6LoWPAN now always queries the driver to get the maximum frame length. 2017-09-10 11:40:54 -06:00
igmp net/igmp/igmp_send.c: Fix incoming IGMP checksum calculation 2017-09-25 06:55:01 -06:00
inet Networking: IPv4 getsockname(): Fix a typo that can cause a compile error. 2017-09-19 10:52:01 -06:00
ipforward Networking: Clean up some naming that has bothered me for a long time... There are no interrupts and no interrupt handlers in the network. There are events and event handler (there used to to be interrupt logic in there years ago but that is long, long gone). 2017-08-29 14:08:04 -06:00
local net/local: fix server lc_waitsem overflow 2017-09-01 07:47:29 -06:00
loopback Fix IPv6 loopback driver that depended on the removed g_ipv6_allonesaddr. Noted by Masayuki Ishikawa 2017-08-09 06:59:55 -06:00
neighbor Networking: Fix netdev_dev_lladdrsize. In some configurations, it could return the wrong size for the address of a packet radio. 2017-08-08 16:27:23 -06:00
netdev Addes support for read-only routing tables. Prior to this change, routing tables were only support in RAM and had to be initialized with explicit logic to add the necessary routes to the routing table. With this change, routes may be defined in the pre-initialized, read-only routing table provided by the board-specific logic 2017-09-28 09:04:31 -06:00
pkt Update net_timedwait() and net_lockedwait() call sites to handle negated errno in return value 2017-09-04 07:56:51 -06:00
procfs Trivial fix in some comments. 2017-09-20 10:06:26 -06:00
route Addes support for read-only routing tables. Prior to this change, routing tables were only support in RAM and had to be initialized with explicit logic to add the necessary routes to the routing table. With this change, routes may be defined in the pre-initialized, read-only routing table provided by the board-specific logic 2017-09-28 09:04:31 -06:00
sixlowpan :Remove CONFIG_NET_6LOWPAN_FRAMELEN. In this case where multiple radios are support3d, this may not be a constant. 6LoWPAN now always queries the driver to get the maximum frame length. 2017-09-10 11:40:54 -06:00
socket Fixes for problems found by Coverity in the nuttx repository: 2017-09-25 07:17:09 -06:00
tcp Fixes for problems found by Coverity in the nuttx repository: 2017-09-25 07:17:09 -06:00
udp UDP Networking: Fix unitialized variable problem found by Coverity 2017-09-13 12:12:57 -06:00
usrsock Update net_timedwait() and net_lockedwait() call sites to handle negated errno in return value 2017-09-04 07:56:51 -06:00
utils Fix net_lock returning ERROR when instead of real error code on failure. 2017-09-01 07:18:16 -06:00
.gitignore
Kconfig Squashed commit of the following: 2017-08-20 11:14:43 -06:00
Makefile Squashed commit of the following: 2017-08-19 08:48:52 -06:00
net_initialize.c Addes support for read-only routing tables. Prior to this change, routing tables were only support in RAM and had to be initialized with explicit logic to add the necessary routes to the routing table. With this change, routes may be defined in the pre-initialized, read-only routing table provided by the board-specific logic 2017-09-28 09:04:31 -06:00
README.txt Squashed commit of the following: 2017-08-19 08:48:52 -06:00

README.txt 

README
======

Directory Structure
===================

  nuttx/
   |
   `- net/
       |
       +- arp        - Address resolution protocol (IPv4)
       +- devif      - Stack/device interface layer
       +- icmp       - Internet Control Message Protocol (IPv4)
       +- icmpv6     - Internet Control Message Protocol (IPv6)
       +- ieee802154 - PF_IEEE802154 socket interface
       +- inet       - PF_INET/PF_INET6 socket interface
       +- ipforward  - IP forwarding logic
       +- local      - Unix domain (local) sockets
       +- loopback   - Local loopback
       +- neighbor   - Neighbor Discovery Protocol (IPv6)
       +- netdev     - Socket network device interface
       +- pkt        - "Raw" packet socket support
       +- sixlowpan  - 6LoWPAN implementation
       +- socket     - BSD socket interface
       +- route      - Routing table support
       +- 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   |
    +----------------------------------------------------------------+ +--------------------------+