nuttx

History

Xiang Xiao 5fd8f78bf9 net/ipforward, tcp, and udp: Fix a chicken and egg problem by eliminating the check of the arp/neighbor tables before packet transmission 1. For buffered tcp/udp case, if CONFIG_NET_ARP_SEND/CONFIG_NET_ARP_IPIN/CONFIG_NET_ICMPv6_NEIGHBOR isn't enabled and the table doesn't contain ip<->ethaddr mapping yet, the logic will skip the realtransmission and then arp/neighbor can't steal the final buffer to generate arp/icmpv6 packet. 2.for all other case, the tcp layer or user program should already contain the retransmit logic, the check is redundancy and may generate many duplicated packets if arp/icmpv6 response is too slow because the cursor stop forward. If user still concern about the very first packet lost, he could fix the issue by enabling CONFIG_NET_ARP_SEND/CONFIG_NET_ICMPv6_NEIGHBOR at begin.		2019-09-18 12:33:41 -06:00
..
arp	net/arp/arp.h: Remove an unused structure definition.	2019-09-01 17:49:44 -06:00
bluetooth	net/: Re-order the content of all address-family socket 'connection' structures so that they begin with a comomon prologue. This permits better use of logic for different address family types.	2019-09-01 08:47:01 -06:00
devif	net/: Now handles reception of IPv4 packets with larger IPv4 headers containing options.	2019-08-31 12:25:30 -06:00
icmp	net/: Re-order the content of all address-family socket 'connection' structures so that they begin with a comomon prologue. This permits better use of logic for different address family types.	2019-09-01 08:47:01 -06:00
icmpv6	net/: Re-order the content of all address-family socket 'connection' structures so that they begin with a comomon prologue. This permits better use of logic for different address family types.	2019-09-01 08:47:01 -06:00
ieee802154	net/: Re-order the content of all address-family socket 'connection' structures so that they begin with a comomon prologue. This permits better use of logic for different address family types.	2019-09-01 08:47:01 -06:00
igmp	net/: Now handles reception of IPv4 packets with larger IPv4 headers containing options.	2019-08-31 12:25:30 -06:00
inet	net/inet and net/tcp: Fix tcp close flow; free the connection after all tcp close process finished.	2019-08-30 06:44:43 -06:00
ipforward	net/ipforward, tcp, and udp: Fix a chicken and egg problem by eliminating the check of the arp/neighbor tables before packet transmission	2019-09-18 12:33:41 -06:00
local	net/local/local_conn.c: Removed un-ncessary memset(). Connection structure is allocated with kmm_zalloc() which will clear all memory.	2019-09-01 11:23:40 -06:00
loopback	tools/nxstyle.c: Fix logic error that prevent detecion of '/' and '/=' as operators. net/: Minor updates resulting from testing tools/nxstyle.	2019-03-11 12:48:39 -06:00
mld	tools/nxstyle.c: Fix logic error that prevent detecion of '/' and '/=' as operators. net/: Minor updates resulting from testing tools/nxstyle.	2019-03-11 12:48:39 -06:00
neighbor	tools/nxstyle.c: Fix logic error that prevent detecion of '/' and '/=' as operators. net/: Minor updates resulting from testing tools/nxstyle.	2019-03-11 12:48:39 -06:00
netdev	Update some comments and README files.	2019-08-24 13:06:43 -06:00
netlink	net/: Re-order the content of all address-family socket 'connection' structures so that they begin with a comomon prologue. This permits better use of logic for different address family types.	2019-09-01 08:47:01 -06:00
pkt	net/: Re-order the content of all address-family socket 'connection' structures so that they begin with a comomon prologue. This permits better use of logic for different address family types.	2019-09-01 08:47:01 -06:00
procfs	net/: Fix alignment and spacing problems found by tools/nxstyle.	2019-07-02 18:02:23 -06:00
route	Fix some typos. Also minor update to stm32f7/nucleo-144/README.txt and stm32l4/nucleo-l496zg/README.txt board documentation.	2019-09-05 08:12:50 -06:00
sixlowpan	Fix some typos. Also minor update to stm32f7/nucleo-144/README.txt and stm32l4/nucleo-l496zg/README.txt board documentation.	2019-09-05 08:12:50 -06:00
socket	net/socket/getpeername: Fixed warning in DEBUG code.	2019-08-07 07:53:56 -06:00
tcp	net/ipforward, tcp, and udp: Fix a chicken and egg problem by eliminating the check of the arp/neighbor tables before packet transmission	2019-09-18 12:33:41 -06:00
udp	net/ipforward, tcp, and udp: Fix a chicken and egg problem by eliminating the check of the arp/neighbor tables before packet transmission	2019-09-18 12:33:41 -06:00
usrsock	net/: Re-order the content of all address-family socket 'connection' structures so that they begin with a comomon prologue. This permits better use of logic for different address family types.	2019-09-01 08:47:01 -06:00
utils	net/: Now handles reception of IPv4 packets with larger IPv4 headers containing options.	2019-08-31 12:25:30 -06:00
.gitignore	.dSYM only needs to be in the same .gitignore files as .exe	2013-05-30 15:02:04 -06:00
Kconfig	net/Kconfig: Ethernet packet buffer size cannot be permitted to go below 1294 is IPv6 is selected.	2019-08-31 09:08:32 -06:00
Makefile	net/mld: Add basic build structure for Multicast Listener Discovery (MLD). No real MLD logic yet. Only a few hooks to capture and dispatch MLD ICMPv6 packets.	2018-10-31 14:10:19 -06:00
net_initialize.c	Squashed commit of the following:	2019-06-02 11:05:31 -06:00
README.txt	net/mld: Add basic build structure for Multicast Listener Discovery (MLD). No real MLD logic yet. Only a few hooks to capture and dispatch MLD ICMPv6 packets.	2018-10-31 14:10:19 -06:00

README.txt

README
======

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

  nuttx/
   |
   `- net/
       |
       +- arp        - Address resolution protocol (IPv4)
       +- bluetooth  - PF_BLUETOOTH socket interface
       +- 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
       +- mld        - Multicast Listener Discovery (MLD)
       +- neighbor   - Neighbor Discovery Protocol (IPv6)
       +- netdev     - Socket network device interface
       +- netlink    - Netlink IPC socket 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   |
    +----------------------------------------------------------------+ +--------------------------+