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Fotis Panagiotopoulos 3c54d82d81 net: Fix task block when devif_send fails. 
When a task needs to send data, a callback is allocated and the
transmission is happening in a worker task through devif_send.
Synchronization between the two tasks (sender & worker) is
achieved by a semaphore.

If devif_send fails, this semaphore was never posted, leaving
the sending task blocked indefinitely. This commit fixes this
by checking the return code of netif_send, and posting this
semaphore in case of failure.

Polling then stops, and execution is resumed on the sending
task.
2023-06-01 17:05:54 +08:00
..
arp
Indent the define statement by two spaces
2023-05-21 09:52:08 -03:00
bluetooth
net: Remove some minor #warning since it compiler specific
2023-05-18 15:44:28 +03:00
can
net: Fix task block when devif_send fails.
2023-06-01 17:05:54 +08:00
devif
net: Fix task block when devif_send fails.
2023-06-01 17:05:54 +08:00
icmp
nuttx/net:Support to PMTUD
2023-05-12 10:21:52 -03:00
icmpv6
net/icmpv6: fix style issues
2023-05-19 02:40:38 +08:00
ieee802154
net: Remove some minor #warning since it compiler specific
2023-05-18 15:44:28 +03:00
igmp
support ipv4 ToS and ipv6 TrafficClass
2023-01-29 13:43:44 +08:00
inet
net/semantic/parser: fix compile warning found by sparse
2023-05-30 23:00:00 +08:00
ipforward
net/semantic/parser: fix compile warning found by sparse
2023-05-30 23:00:00 +08:00
ipfrag
nuttx/net:Support to PMTUD
2023-05-12 10:21:52 -03:00
local
net/semantic/parser: fix compile warning found by sparse
2023-05-30 23:00:00 +08:00
mld
support ipv4 ToS and ipv6 TrafficClass
2023-01-29 13:43:44 +08:00
nat
net/ip: fix compile break if disable NET_TCP
2023-02-07 12:46:40 +02:00
neighbor
Replace all sprintf with snprintf
2023-05-08 09:57:01 +02:00
netdev
net/semantic/parser: fix compile warning found by sparse
2023-05-30 23:00:00 +08:00
netfilter
Fix Kconfig style
2023-05-23 00:03:25 +08:00
netlink
net: remove conn-related casts
2023-05-10 19:32:09 -03:00
pkt
net: Fix task block when devif_send fails.
2023-06-01 17:05:54 +08:00
procfs
net: Simplify the tcp/udp existence check
2023-05-03 17:40:00 +03:00
route
net: use NXRMUTEX_INITIALIZER for rmutex init
2023-03-15 13:57:08 +01:00
rpmsg
net/rpmsg: initialize semaphore count before wait
2023-05-16 17:15:42 +08:00
sixlowpan
Fix Kconfig style
2023-05-23 00:03:25 +08:00
socket
net/semantic/parser: fix compile warning found by sparse
2023-05-30 23:00:00 +08:00
tcp
net: Fix task block when devif_send fails.
2023-06-01 17:05:54 +08:00
udp
net: Fix task block when devif_send fails.
2023-06-01 17:05:54 +08:00
usrsock
net/local: Return the unblock handle correctly in local_accept
2023-03-09 09:17:19 +01:00
utils
Remove #warning if the code already return the error code or value
2023-05-18 15:44:28 +03:00
Kconfig
SLIP: Switch to poll based design
2023-05-26 19:57:57 -03:00
Makefile
Support fragmentation and reassembly
2023-01-17 14:01:37 +08:00
net_initialize.c
…
README.txt
Support fragmentation and reassembly
2023-01-17 14:01:37 +08:00

README.txt 

README
======

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

  nuttx/
   |
   `- net/
       |
       +- arp        - Address resolution protocol (IPv4)
       +- bluetooth  - PF_BLUETOOTH socket interface
       +- devif      - Stack/device interface layer
       +- ipfrag     - Fragmentation and reassembly
       +- 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   |
    +----------------------------------------------------------------+ +--------------------------+