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YAMAMOTO Takashi bc0ca51243 netdev_file_ioctl: Fix fcntl F_SETFL O_NONBLOCK regression 
This fixes a regression caused by the following commit,
which prevents the file flag from being updated.

```
commit 28860b5242dd5efd86b5da8a089e5d898cd8a9a1
Author: chao.an <anchao@xiaomi.com>
Date:   Sat Mar 19 14:47:37 2022 +0800

    net/netdev: fix switch case missing break

    Signed-off-by: chao.an <anchao@xiaomi.com>
```

Note: some applications like mbedtls uses F_GETFL to confirm
the nonblock-ness of the socket. This is critical for such
applications.
2022-04-01 16:35:12 +08:00
..
arp
net: unify FAR keyword usage for all net buffer memory mapped buffers
2022-01-20 01:42:56 +08:00
bluetooth
net: Remove the unnecessary initialization code
2022-03-12 19:24:17 +02:00
can
net: Remove the unnecessary initialization code
2022-03-12 19:24:17 +02:00
devif
devif/ipv6_input.c: fix compile warning
2022-02-18 16:05:20 +08:00
icmp
net: Remove the unnecessary initialization code
2022-03-12 19:24:17 +02:00
icmpv6
net: Remove the unnecessary initialization code
2022-03-12 19:24:17 +02:00
ieee802154
net: Remove the unnecessary initialization code
2022-03-12 19:24:17 +02:00
igmp
net/igmp: Remove igmp_initialize
2022-03-12 19:24:17 +02:00
inet
tcp: added debug asserts and logging to investigate the rare (conn->dev == NULL) bug in callback handlers
2022-02-26 11:48:07 -03:00
ipforward
net: use HTONS, NTOHS, HTONL, NTOHL macro in kernel code
2022-01-18 10:59:47 +01:00
local
local_socket: default set block mode if accept() a new socket
2022-03-28 23:26:34 +08:00
mld
net/tcp/netdev/mld: correct the netlock handling
2022-02-03 11:09:18 -03:00
neighbor
net: use HTONS, NTOHS, HTONL, NTOHL macro in kernel code
2022-01-18 10:59:47 +01:00
netdev
netdev_file_ioctl: Fix fcntl F_SETFL O_NONBLOCK regression
2022-04-01 16:35:12 +08:00
netlink
net: Remove the unnecessary initialization code
2022-03-12 19:24:17 +02:00
pkt
net: Remove the unnecessary initialization code
2022-03-12 19:24:17 +02:00
procfs
libc: Rename match to fnmatch
2021-08-02 08:23:35 -03:00
route
pid_t: unify usage of special task IDs
2022-03-22 21:22:32 +08:00
rpmsg
rpmsg_socket: fix kasan report error
2022-03-29 10:09:49 +08:00
sixlowpan
net/inet: move recv/send timeout into socket_conn_s
2022-02-10 15:04:33 -03:00
socket
net/sockopt: bypass the SO_RCVBUF/SO_SNDBUF to usrsock
2022-03-18 00:19:31 +08:00
tcp
net: Remove the unnecessary initialization code
2022-03-12 19:24:17 +02:00
udp
net/udp: clear the connection structure after free
2022-03-16 13:46:02 +08:00
usrsock
net: Remove the unnecessary initialization code
2022-03-12 19:24:17 +02:00
utils
pid_t: unify usage of special task IDs
2022-03-22 21:22:32 +08:00
Kconfig
drivers: net: exclude BSD components from build
2022-02-24 22:48:47 +08:00
Makefile
net/socket_rpmsg: add net socket rpmsg support
2021-03-07 01:45:51 -08:00
net_initialize.c
net: Reoder the initialize sequence(mac->ip->tcp/udp)
2022-03-12 19:24:17 +02:00
README.txt
…

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
       +- 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   |
    +----------------------------------------------------------------+ +--------------------------+