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205 commits

Author SHA1 Message Date
zhangkai25
711c58767a net/arp: Skip ARP request if ip address is invalid 
Supports no ARP reply for invalid routing addresses in cross-segment communication

Signed-off-by: zhangkai25 <zhangkai25@xiaomi.com>
 2025-12-31 02:36:09 +08:00
wenquan1
1f5cd930a4 net/arp: support ARP entry learned on gratuitous ARP response 
learn arp when received gratuitiout arp

Signed-off-by: wenquan1 <wenquan1@xiaomi.com>
 2025-12-30 21:10:50 +08:00
wenquan1
7e4c3f4a60 net/arp: support ARP entry learned on gratuitous ARP response 
learn arp when receive gratuitous arp response

Signed-off-by: wenquan1 <wenquan1@xiaomi.com>
 2025-12-30 21:10:50 +08:00
zhanghongyu
6d916a4b0a arp_send: call arp_update before txnotify 
if update is called after tx, in an environment with very low
latency (such as a simulator), the received arp_response will
be overwritten by update (NULL), resulting in arp learning success,
but the packets are always not sent correctly and are converted
into arp packets.

Signed-off-by: zhanghongyu <zhanghongyu@xiaomi.com>
 2025-12-30 11:28:22 +08:00
wenquan1
4ae08155f9 net/arp: limit arp request when arp is in progress to prevent ARP flooding 
Wait a fixed number of milliseconds before sending a retry ARP request for the same destination if the IP address mapping is not exist to prevent ARP flooding

Signed-off-by: wenquan1 <wenquan1@xiaomi.com>
 2025-12-30 11:28:22 +08:00
wenquan1
6b30226c0e Revert "net/arp: modify some flow of arp return failure" 
This reverts commit 2863f1d8d6da477dfef7013f93dd9b34efb4f378.

Signed-off-by: wenquan1 <wenquan1@xiaomi.com>
 2025-12-30 11:28:22 +08:00
wenquan1
033299710f net/arp: fix the problem of arp notify and flood arp sending 
when a arp response reached, it should notify all tasks waiting the address. if the address is unreachable, do not send arp request to prevent arp flooding.

Signed-off-by: wenquan1 <wenquan1@xiaomi.com>
 2025-12-30 11:28:22 +08:00
gaohedong
ca7c6e2a6f net/arp: dont learn arp information if interface is noarp 
Dont learn arp information from ip packet if interface is noarp

Signed-off-by: gaohedong <gaohedong@xiaomi.com>
 2025-12-29 14:38:36 +08:00
zhanghongyu
51743c55b2 net/arp/arp_send.c: replace net_lock with netdev_lock 
use netdev_lock to protect the arp process

Signed-off-by: zhanghongyu <zhanghongyu@xiaomi.com>
 2025-12-29 09:42:18 +08:00
zhanghongyu
cdaf4ee653 arp_poll: skip arp_out when arp_send flow 
there is no need to call arp_out again to perform layer 2 header filling
in the arp_send process, so we should directly call the driver's callback.

Signed-off-by: zhanghongyu <zhanghongyu@xiaomi.com>
 2025-12-25 08:36:47 -03:00
gaohedong
23013b33ce net/ethernet: ARP can be configured on interface 
ARP can be configured on interface.

Signed-off-by: gaohedong <gaohedong@xiaomi.com>
 2025-12-25 12:23:38 +08:00
zhanghongyu
9dab103fa0 net: replace critical_section with spin lock 
so as to better support multi-core scenarios

Signed-off-by: zhanghongyu <zhanghongyu@xiaomi.com>
 2025-12-09 14:43:59 +08:00
nuttxs
22560958bc net/arp: reducing unnecessary ARP requests can mitigate 
network congestion and avoid packet delays caused by
waiting for ARP responses

Signed-off-by: nuttxs <zhaoqing.zhang@sony.com>
 2025-07-08 12:43:43 -03:00
Lars Kruse
3ce85ca54e style: fix spelling in code comments and strings 2025-05-23 10:48:41 +08:00
zhanghongyu
05f7b7ac97 include/netinet/arp.h: change the type of arp_dev from uint8_t to char 
the same variable type in linux is char, in order to avoid modifying
the third-party library code when porting the third-party library code.

Signed-off-by: zhanghongyu <zhanghongyu@xiaomi.com>
 2024-12-26 23:29:23 +08:00
zhanghongyu
8bb1e30884 net/arp: modify some flow of arp return failure. 
If arp search fails once, subsequent searches for the ip will directly
return failure, and sends an asynchronous arp request to try to update
arp table in the future. In this way, the psock_sendmsg interface will
not block for a long time each time because arp cannot be obtained.

This scenario is triggered when a udp socket frequently attempts to
access an ip address that does not exist on the LAN.

Signed-off-by: zhanghongyu <zhanghongyu@xiaomi.com>
 2024-09-30 15:43:02 +08:00
Alin Jerpelea
67d02a45eb net: migrate to SPDX identifier 
Most tools used for compliance and SBOM generation use SPDX identifiers
This change brings us a step closer to an easy SBOM generation.

Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
 2024-09-12 01:08:11 +08:00
Tiago Medicci Serrano
96f83bb03a net: Enable CONFIG_NET_ARP_SEND by default 
Enable logic to send ARP requests if the target IP address mapping
does not appear in the ARP table.

Please check the comment in https://github.com/apache/nuttx/issues/12446#issuecomment-2145856778
 2024-06-06 02:40:16 +08:00
raiden00pl
c09f7f7864 cmake: add missing arp_acd.c file 2024-06-02 09:27:36 -03:00
meijian
8eaefd2424 net/netlink: Add RTM neigh notify support 
Signed-off-by: meijian <meijian@xiaomi.com>
 2024-05-14 10:05:37 -03:00
wangchen
204f4a18a0 Support to ARP Address Conflict Detection 
Support to ARP Address Conflict Detection

Signed-off-by: wangchen <wangchen41@xiaomi.com>
 2024-01-25 11:25:03 -03:00
chao an
8767a84e13 net/arp: arp should depends on MM_IOB 
Implementation of arp depends on MM_IOB

Signed-off-by: chao an <anchao@xiaomi.com>
 2023-09-12 16:24:52 +08:00
Zhe Weng
d44e19d115 mm/iob: Add support for increasing length in iob_update_pktlen 
Signed-off-by: Zhe Weng <wengzhe@xiaomi.com>
 2023-08-22 16:34:21 +09:00
zhanghongyu
1890ec5129 arp_wait: print dest ip address when receive wait timeout 
If the arp query times out, the destination ip address is displayed to
help locate the problem

Signed-off-by: zhanghongyu <zhanghongyu@xiaomi.com>
 2023-08-20 15:44:02 +08:00
Petro Karashchenko
075738cf14 net/ip: print ip addresses using ip4_addrN macro 
Signed-off-by: Petro Karashchenko <petro.karashchenko@gmail.com>
 2023-08-19 13:28:21 -03:00
chao an
6ee9ec7656 build: add initial cmake build system 
1. Update all CMakeLists.txt to adapt to new layout
2. Fix cmake build break
3. Update all new file license
4. Fully compatible with current compilation environment(use configure.sh or cmake as you choose)

------------------

How to test

From within nuttx/. Configure:

cmake -B build -DBOARD_CONFIG=sim/nsh -GNinja
cmake -B build -DBOARD_CONFIG=sim:nsh -GNinja
cmake -B build -DBOARD_CONFIG=sabre-6quad/smp -GNinja
cmake -B build -DBOARD_CONFIG=lm3s6965-ek/qemu-flat -GNinja

(or full path in custom board) :
cmake -B build -DBOARD_CONFIG=$PWD/boards/sim/sim/sim/configs/nsh -GNinja

This uses ninja generator (install with sudo apt install ninja-build). To build:

$ cmake --build build

menuconfig:

$ cmake --build build -t menuconfig

--------------------------

2. cmake/build: reformat the cmake style by cmake-format

https://github.com/cheshirekow/cmake_format

$ pip install cmakelang

$ for i in `find -name CMakeLists.txt`;do cmake-format $i -o $i;done
$ for i in `find -name *\.cmake`;do cmake-format $i -o $i;done

Co-authored-by: Matias N <matias@protobits.dev>
Signed-off-by: chao an <anchao@xiaomi.com>
 2023-07-08 13:50:48 +08:00
Xiang Xiao
7990f90915 Indent the define statement by two spaces 
follow the code style convention

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2023-05-21 09:52:08 -03:00
Xiang Xiao
5de49d2939 net: Remove the extra space 
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2023-05-03 15:18:21 +02:00
Fotis Panagiotopoulos
85ceb7920e Typo fixes. 2023-02-17 11:17:11 -03:00
Zhe Weng
1cf3147626 net/netdev: Avoid hardcoded guardsize when using d_iob 
Signed-off-by: Zhe Weng <wengzhe@xiaomi.com>
 2023-01-18 14:41:07 +08:00
Xiang Xiao
a851ad84c3 net: consistent the net sem wait naming conversion 
to prepare the new mutex wait function

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2023-01-15 12:31:30 -03:00
chao an
8a63d29c6e net/devif_poll: optimize device buffer alloc in txpoll 
Allocate the device buffer only if the protocol really need to send data.
not all protocols require the driver to prepare additional iob before
sending, especially UDP, each iob reserves l2/l3 header in advance
after prepare write buffer, net device could reuse this entry to send directly

Signed-off-by: chao an <anchao@xiaomi.com>
 2023-01-13 16:41:10 +08:00
Xiang Xiao
d5689e070b net/arp: Remove nuttx/net/arp.h 
1.move ARPHRD_ETHER to netinet/arp.h
1.move arp_entry_s to net/arp/arp.h
2.move arp_input to nuttx/net/netdev.h

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2022-12-16 22:10:59 +02:00
zhanghongyu
c74cb1aaa5 net/arp: change arptable struct from arp_entry_s to arpreq 
Signed-off-by: zhanghongyu <zhanghongyu@xiaomi.com>
 2022-12-14 21:17:08 +08:00
zhanghongyu
1a81a936df arp: add device check for arp interface 
Signed-off-by: zhanghongyu <zhanghongyu@xiaomi.com>
 2022-12-14 21:17:08 +08:00
Xiang Xiao
43bda3282f net/arp: Move arp_ipin and arp_out to private header file 
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2022-12-04 20:39:21 +08:00
Xiang Xiao
c6e9edcbb6 net: Rename arp_arpin to arp_input 
align with other similar function(e.g. ipv4_input and ipv6_input)

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2022-12-04 20:39:21 +08:00
chao an
62004a28a6 net/d_buf: remove d_buf reference from l3/l4 
l3/l4 stack will decouple the reference of d_buf gradually, Only legacy
devices still retain d_buf support, new net devices will use d_iob

Signed-off-by: chao an <anchao@xiaomi.com>
 2022-12-04 20:37:14 +08:00
chao an
82d67b201a net/offload: add offload support for pkt/arp 
1. add offload support for pkt/arp
2. Reset the d_buf to NULL if d_iob has released

Signed-off-by: chao an <anchao@xiaomi.com>
 2022-12-04 01:34:30 +08:00
chao an
34d2cde8a8 net/l2/l3/l4: add support of iob offload 
1. Add new config CONFIG_NET_LL_GUARDSIZE to isolation of l2 stack,
   which will benefit l3(IP) layer for multi-MAC(l2) implementation,
   especially in some NICs such as celluler net driver.

new configuration options: CONFIG_NET_LL_GUARDSIZE

CONFIG_NET_LL_GUARDSIZE will reserved l2 buffer header size of
network buffer to isolate the L2/L3 (MAC/IP) data on network layer,
which will be beneficial to L3 network layer protocol transparent
transmission and forwarding

------------------------------------------------------------
Layout of frist iob entry:

        iob_data (aligned by CONFIG_IOB_ALIGNMENT)
            |
            |                  io_offset(CONFIG_NET_LL_GUARDSIZE)
            |                                |
            -------------------------------------------------
      iob   |            Reserved            |    io_len    |
            -------------------------------------------------

-------------------------------------------------------------
Layout of different NICs implementation:

        iob_data (aligned by CONFIG_IOB_ALIGNMENT)
            |
            |                 io_offset(CONFIG_NET_LL_GUARDSIZE)
            |                                |
            -------------------------------------------------
 Ethernet   |       Reserved    | ETH_HDRLEN |    io_len    |
            ---------------------------------|---------------
 8021Q      |   Reserved  | ETH_8021Q_HDRLEN |    io_len    |
            ---------------------------------|---------------
 ipforward  |            Reserved            |    io_len    |
            -------------------------------------------------

--------------------------------------------------------------------

2. Support iob offload to l2 driver to avoid unnecessary memory copy

Support send/receive iob vectors directly between the NICs and l3/l4
stack to avoid unnecessary memory copies, especially on hardware that
supports Scatter/gather, which can greatly improve performance.

new interface to support iob offload:

  ------------------------------------------
  |    IOB version     |     original      |
  |----------------------------------------|
  |  devif_iob_poll()  |   devif_poll()    |
  |       ...          |       ...         |
  ------------------------------------------

--------------------------------------------------------------------

1> NIC hardware support Scatter/gather transfer

TX:

                tcp_poll()/udp_poll()/pkt_poll()/...(l3|l4)
                           /              \
                          /                \
devif_poll_[l3|l4]_connections()     devif_iob_send() (nocopy:udp/icmp/...)
           /                                   \      (copy:tcp)
          /                                     \
  devif_iob_poll("NIC"_txpoll)                callback() // "NIC"_txpoll
                                                  |
                            dev->d_iob:           |
                                                ---------------         ---------------
                             io_data       iob1 |  |          |    iob3 |  |          |
                                    \           ---------------         ---------------
                                  ---------------  |       --------------- |
                             iob0 |  |          |  |  iob2 |  |          | |
                                  ---------------  |       --------------- |
                                     \             |          /           /
                                        \          |       /           /
                                   ----------------------------------------------
                    NICs io vector |    |    |    |    |    |    |    |    |    |
                                   ----------------------------------------------

RX:

  [tcp|udp|icmp|...]ipv[4|6]_data_handler()(iob_concat/append to readahead)
                    |
                    |
      [tcp|udp|icmp|...]_ipv[4|6]_in()/...
                    |
                    |
          pkt/ipv[4/6]_input()/...
                    |
                    |
     NICs io vector receive(iov_base to each iobs)

--------------------------------------------------------------------

2> CONFIG_IOB_BUFSIZE is greater than MTU:

TX:

"(CONFIG_IOB_BUFSIZE) > (MAX_NETDEV_PKTSIZE + CONFIG_NET_GUARDSIZE + CONFIG_NET_LL_GUARDSIZE)"

                tcp_poll()/udp_poll()/pkt_poll()/...(l3|l4)
                           /              \
                          /                \
devif_poll_[l3|l4]_connections()     devif_iob_send() (nocopy:udp/icmp/...)
           /                                   \      (copy:tcp)
          /                                     \
  devif_iob_poll("NIC"_txpoll)                callback() // "NIC"_txpoll
                                                  |
                                             "NIC"_send()
                          (dev->d_iob->io_data[CONFIG_NET_LL_GUARDSIZE - NET_LL_HDRLEN(dev)])

RX:

  [tcp|udp|icmp|...]ipv[4|6]_data_handler()(iob_concat/append to readahead)
                    |
                    |
      [tcp|udp|icmp|...]_ipv[4|6]_in()/...
                    |
                    |
          pkt/ipv[4/6]_input()/...
                    |
                    |
     NICs io vector receive(iov_base to io_data)

--------------------------------------------------------------------

3> Compatible with all old flat buffer NICs

TX:
                tcp_poll()/udp_poll()/pkt_poll()/...(l3|l4)
                           /              \
                          /                \
devif_poll_[l3|l4]_connections()     devif_iob_send() (nocopy:udp/icmp/...)
           /                                   \      (copy:tcp)
          /                                     \
  devif_iob_poll(devif_poll_callback())  devif_poll_callback() /* new interface, gather iobs to flat buffer */
       /                                           \
      /                                             \
 devif_poll("NIC"_txpoll)                     "NIC"_send()(dev->d_buf)

RX:

  [tcp|udp|icmp|...]ipv[4|6]_data_handler()(iob_concat/append to readahead)
                    |
                    |
      [tcp|udp|icmp|...]_ipv[4|6]_in()/...
                    |
                    |
               netdev_input()  /* new interface, Scatter/gather flat/iob buffer */
                    |
                    |
          pkt/ipv[4|6]_input()/...
                    |
                    |
    NICs io vector receive(Orignal flat buffer)

3. Iperf passthrough on NuttX simulator:

  -------------------------------------------------
  |  Protocol      | Server | Client |            |
  |-----------------------------------------------|
  |  TCP           |  813   |   834  |  Mbits/sec |
  |  TCP(Offload)  | 1720   |  1100  |  Mbits/sec |
  |  UDP           |   22   |   757  |  Mbits/sec |
  |  UDP(Offload)  |   25   |  1250  |  Mbits/sec |
  -------------------------------------------------

Signed-off-by: chao an <anchao@xiaomi.com>
 2022-12-03 11:47:04 +08:00
chao an
615845d9a6 net/devif: add common interface to build L2 headers 
So we can hide the implementation details of L2 NICs.

Signed-off-by: chao an <anchao@xiaomi.com>
 2022-11-28 14:44:15 +01:00
Xiang Xiao
4663987e66 Fix devif/ipv4_input.c:405:1: warning: label ‘done’ defined but not used [-Wunused-label] 
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
Signed-off-by: chao an <anchao@xiaomi.com>
 2022-11-27 18:01:38 +08:00
chao an
81325a8a3d net/arp: add link layer check for arp_out/arp_ipin 
ARP support is only built if the Ethernet link layer is supported.
Continue and send the ARP request only if this device uses the
Ethernet link layer protocol.

Signed-off-by: chao an <anchao@xiaomi.com>
 2022-11-27 12:13:45 +08:00
chao an
db88554d7d net/devif: add common funtion to build L2 headers before sending 
Generic callback before device output to build L2 headers before sending

Signed-off-by: chao an <anchao@xiaomi.com>
 2022-11-27 12:11:12 +08:00
chao an
ce1c945136 net/arp: Make NET_ARP(Address Resolution Protocol) configurable 
Some boards that use USRSOCK will not need this feature

Signed-off-by: chao an <anchao@xiaomi.com>
 2022-11-21 13:20:55 +08:00
chao an
a8d3286258 net: move device buffer define to common header 
Signed-off-by: chao an <anchao@xiaomi.com>
 2022-10-28 00:32:16 -04:00
anjiahao
5724c6b2e4 sem:remove sem default protocl 
Signed-off-by: anjiahao <anjiahao@xiaomi.com>
 2022-10-22 14:50:48 +08:00
Xiang Xiao
40ef5bc6db libc: Move queue.h from include to include/nuttx 
to avoid the conflict with libuv's queue.h

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2022-09-26 08:04:58 +02:00
chao.an
162fcd10ca net: cleanup pvconn reference to avoid confuse 
More reference:
https://github.com/apache/incubator-nuttx/pull/5252
https://github.com/apache/incubator-nuttx/pull/5434

Signed-off-by: chao.an <anchao@xiaomi.com>
 2022-08-26 20:58:11 +08:00
Xiang Xiao
fe85e9d0fa net: Remove devif_timer from comment 
since devif_timer has been removed in:
commit 035d925864
Author: zhanghongyu <zhanghongyu@xiaomi.com>
Date:   Sun May 29 21:47:28 2022 +0800

    devif: remove all devif_timer

    Signed-off-by: zhanghongyu <zhanghongyu@xiaomi.com>

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2022-06-07 20:15:41 +03:00