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nuttx/net
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Gregory Nutt bc40403516 There was a reference counting problem in the TPC logic of net_clone(). net_clone() which is the common logic underlying dup() and dup2() for sockets. When net_clone() calls net_start_monitor() and net_start_monitor() returns a failure (because the underlying TCP connection) then net_clone() must back out the reference count on the structure. Problem noted by Pascal Speck and this implementation of the solution is based on his suggestion.
2017-10-19 11:09:23 -06:00
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arp Squashed commit of the following: 2017-10-03 15:35:24 -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 Squashed commit of the following: 2017-10-03 15:35:24 -06:00
icmpv6 Squashed commit of the following: 2017-10-03 15:35:24 -06:00
ieee802154 Squashed commit of the following: 2017-10-03 15:35:24 -06:00
igmp Squashed commit of the following: 2017-10-03 15:35:24 -06:00
inet TCP Networking: When CONFIG_NET_TCP_WRITE_BUFF=y there is a situation where a NULL pointer may be dereferenced. In this configuration, the TCP connection's 'semi-permnanent' callback, s_sndcb was nullified in tcp_close_disconnect. However, other logic in tcp_lost_connection() attempt to use that callback reference after it was nullifed. Fixed in tcp_lost_connectino() by adding a NULL pointer change before the access. This was reported by Dmitriy Linikov in Bitbucket Issue 72. 2017-10-13 06:47:40 -06:00
ipforward net/: Fix some build issues noted when both IPv4 and IPv6 are enabled. 2017-10-18 11:08:56 -06:00
local net/local: Missed at least one change from read() to nx_read(). 2017-10-11 12:16:00 -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 net/: Fix some build issues noted when both IPv4 and IPv6 are enabled. 2017-10-18 11:08:56 -06:00
netdev Squashed commit of the following: 2017-09-30 10:41:21 -06:00
pkt Squashed commit of the following: 2017-10-03 15:35:24 -06:00
procfs Trivial fix in some comments. 2017-09-20 10:06:26 -06:00
route Squashed commit of the following: 2017-10-04 15:22:27 -06:00
sixlowpan The nx example no longer supports single user mode. 2017-10-14 10:54:38 -06:00
socket There was a reference counting problem in the TPC logic of net_clone(). net_clone() which is the common logic underlying dup() and dup2() for sockets. When net_clone() calls net_start_monitor() and net_start_monitor() returns a failure (because the underlying TCP connection) then net_clone() must back out the reference count on the structure. Problem noted by Pascal Speck and this implementation of the solution is based on his suggestion. 2017-10-19 11:09:23 -06:00
tcp TCP Networking: When CONFIG_NET_TCP_WRITE_BUFF=y there is a situation where a NULL pointer may be dereferenced. In this configuration, the TCP connection's 'semi-permnanent' callback, s_sndcb was nullified in tcp_close_disconnect. However, other logic in tcp_lost_connection() attempt to use that callback reference after it was nullifed. Fixed in tcp_lost_connectino() by adding a NULL pointer change before the access. This was reported by Dmitriy Linikov in Bitbucket Issue 72. 2017-10-13 06:47:40 -06:00
udp Squashed commit of the following: 2017-10-04 15:22:27 -06:00
usrsock Squashed commit of the following: 2017-10-04 15:22:27 -06:00
utils sched/semaphore: sem_timedwait() is a cancellation point and, hence, cannot be called from within the OS. Created nxsem_timedwait() that is equivalent but does not modify the errno and does not cause cancellation. All calls to sem_timedwait() change to calls to nxsem_timedwait() in the OS. 2017-10-05 07:24:54 -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   |
    +----------------------------------------------------------------+ +--------------------------+