4b7604cf81
net: Rename tcp_dataconcat to net_iob_concat
...
Allow other protocols like UDP to use concat logic.
Signed-off-by: Zhe Weng <wengzhe@xiaomi.com>
2023-07-18 10:51:45 +08:00
c288752bef
recvmsg: control msg support multi-attribute return
...
adapts to third-party code compilation. in the process of porting ConnMan,
multiple control message options are enabled, such as IPV6_RECVPKTINFO and
IPV6_RECVHOPLIMIT, so I changed the Filling implementation of the control
message.
Signed-off-by: zhanghongyu <zhanghongyu@xiaomi.com>
2023-05-04 12:04:11 +02:00
a2097cfb71
net: modify find device logic
...
The priorities for finding a network adapter are as follows:
1. if laddr is not ANY, use laddr to find device;
2. if laddr is ANY, and bound index is not 0, use bound index
to find device;
3. if laddr is ANY and no device is bound, use raddr to find
device.
Signed-off-by: zhanghongyu <zhanghongyu@xiaomi.com>
2023-02-12 01:25:34 +08:00
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
4281acdb83
net/chksum: move all chksum api declarations to common header
...
The following APIs need to be overriden by the arch after enabling
CONFIG_NET_ARCH_CHKSUM, move these functions to the common header
file to avoid prototype conflicts
uint16_t chksum(uint16_t sum, FAR const uint8_t *data, uint16_t len);
uint16_t net_chksum(FAR uint16_t *data, uint16_t len);
uint16_t ipv4_upperlayer_chksum(FAR struct net_driver_s *dev, uint8_t proto);
uint16_t ipv6_upperlayer_chksum(FAR struct net_driver_s *dev,
uint8_t proto, unsigned int iplen);
uint16_t ipv4_chksum(FAR struct ipv4_hdr_s *ipv4);
Signed-off-by: chao an <anchao@xiaomi.com>
2022-11-30 15:08:14 +08:00
391b501639
net: extract l3 header build code into new functions
...
Signed-off-by: liyi <liyi25@xiaomi.com>
2022-11-29 18:36:15 +08:00
ab15887a0b
tcp: find bound device when laddr is ANY
...
icmp: find bound device when s_boundto is not zero
Signed-off-by: zhanghongyu <zhanghongyu@xiaomi.com>
2022-11-12 18:36:09 +08:00
66bc2ffbe6
net/utils: add net_chksum_adjust defined by RFC3022
...
net_chksum_adjust is used for fast checksum adjustment after modifying some fields in a network packet. Will be used in NAT.
Signed-off-by: Zhe Weng <wengzhe@xiaomi.com>
2022-11-02 21:25:01 +01:00
9c1fc8da4e
net: Remove net_lockinitialize
...
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2022-03-12 19:24:17 +02:00
3b69d09c80
net/udp/icmp: correct the unreadchable handling
...
Reference RFC1122:
https://datatracker.ietf.org/doc/html/rfc1122
----------------------------------------------
4.1.3 SPECIFIC ISSUES
4.1.3.1 Ports
If a datagram arrives addressed to a UDP port for which
there is no pending LISTEN call, UDP SHOULD send an ICMP
Port Unreachable message.
Signed-off-by: chao.an <anchao@xiaomi.com>
2021-11-26 08:47:54 -06:00
37d5c1b0d9
net: Author Gregory Nutt: update licenses to Apache
...
Gregory Nutt has submitted the SGA and we can migrate the licenses
to Apache.
Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
2021-02-20 00:38:18 -08:00
2956b8516b
Fix nxstyle warning
...
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2020-10-20 01:45:06 -07:00
eb4121ce38
Change all 'Nuttx' to 'NuttX'
...
Unify the naming convention
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2020-10-20 01:45:06 -07:00
c1b0aa118c
Remove psock_send and sockfd_socket from net/socket/socket.h
...
Since both is already declared in include/nuttx/net/net.h and fix other minor issue in network socket layer.
2020-01-31 13:45:15 -06:00
affc32c9d1
net/: Fix net checksum related issue
...
1. Remove the unused and unimplemented ipv6_chksum declaration
2. Update NET_ARCH_CHKSUM description to align with the implementation
3. Declare all checksum function prototype regardless CONFIG_NET_ARCH_CHKSUM
4. Remove the CONFIG_NET_ARCH_CHKSUM guard for tcp_ipv[4|6]_chksum
2020-01-30 07:44:36 -06:00
c999d12bba
net/utils: net_lock() and net_restorelock() not return a value. That values is the standard zero on success; negated errno value on failure. This return value is only needed for -ECANCELED. That cancellation indication needs to ripple all the way back to the highest levels where the cancellation can be acted on. This commit only adds the return value; it does not add checking for the return values of net_lock() and net_restorelock() at higher levels. That is required too.
2019-04-14 09:37:25 -06:00
33ed27ae65
Squashed commit of the following:
...
net/mld: Checksum calculation needs to know the full size of the IPv6 header, including the size of the extension headers. The payload size in the IPv64 header must include the extension headers (not considered part of the header in this case). Fixes a few additional errors in size, endian-ness and checksum calculations. Wireshark now reports the the outgoing Report has a good checksum.
net/mld/mld_query.c: Add a cast to assure that the left shift does not overflow.
2018-11-05 08:56:07 -06:00
88130a996a
net/: Fixes for more coding standard issues detected by nxstyle.
2018-10-29 18:00:30 -06:00
6571d4fa37
Update some comments.
2018-07-07 15:23:46 -06:00
75cc19ebb4
net/tcp: Fix a deadlock condition that can occur when (1) all network logic runs on a single work queue, (1) TCP write buffering is enabled, and (2) we run out of IOBs. In this case, the TCP write buffering logic was blocking on iob_alloc() with the network locked. Since the network was locked, the device driver polls that would provide take the write buffer data and release the IOBs could not execute. This fixes the problem by unlocking the network lock while waiting for the IOBs.
2018-07-06 19:49:05 -06:00
b54ffe858a
Standardization of some function headers.
2018-03-13 09:52:27 -06:00
7cf88d7dbd
Make sure that labeling is used consistently in all function headers.
2018-02-01 10:00:02 -06:00
cccc86da09
This change adds support for semi-standard IPPROTO_ICMP AF_INET datagram sockets. This replaces the old ad hoc, nonstandard way of implementing ping with a more standard, socket interface.
...
Squashed commit of the following:
net/icmp: Finishes off icmp_recvfrom().
net/icmp: Add readahead support for IPPROTO_ICMP sockets.
net/icmp: Add poll() support for IPPROTO_ICMP sockets.
net/icmp: Add a connection structure for IPPROTO_ICMP sockets.
net/icmp: Implements sendto for the IPPROTO_ICMP socket.
net/icmp: Move icmp_sendto() and icmp_recvfrom() to separate files. They are likely to be complex (when they are implemented).
net/icmp: Hook IPPROTO_ICMP sockets into network. Fix some naming collisions. Still missing basic ICMP send/receive logic.
configs: apps/system/ping current need poll() enabled.
configs: All defconfig files that use to enable low-level support must now enabled CONFIG_SYSTEM_PING.
net/icmp: Adds basic build framework to support IPPROTO_ICMP sockets.
2017-10-23 08:45:12 -06:00
d5207efb5a
Be consistent... Use Name: consistent in function headers vs Function:
2017-04-21 16:33:14 -06:00
392c90b020
6loWPAN: Fix last checksum issues. Contiki 6loWPAN port is now complete (but completely untested)
2017-04-02 14:30:01 -06:00
7467329a98
Eliminate CONFIG_NO_NOINTS. Lots of files changed -> lots of testing needed.
2016-12-03 16:28:19 -06:00
b0ea870bcc
Remove some empty code section comments
2016-02-25 18:34:36 -06:00
1608b7c33f
Some networking logic was used helpers from apps/netutils. Not good. Quick fix is to duplicate logic
2016-01-09 15:56:08 -06:00
33085cb309
Networking: The network device list was protected by a re-entrant semaphore. With the recent change to support network device callback, the network stack needs to access the network device list too. Some drivers, however, run the network stack from the interrupt level -- this is bad but a fact in the current state. Of course,those drivers are unable to take the semaphore and will assert.
...
The solution here is to eliminate the device devices semaphore altogether. This eliminates netdev_semtake() and netdev_semgive() and replaces them with net_lock() and net_unlock() which have larger scope as needed for this purpose.
2015-05-31 08:34:03 -06:00
5337176cdf
Networking: setsockopt() fails when setting timeouts to values less that an 100 msec. That is because the timeout is limited to stops of 1 decisecond and because the conversion of structure timeval was truncating the microsecond remainder. The utility net_timeval2dsec now accespts and option to determin how it handles the remainder: truncate, discarding the remainder, use the remainder to round to the closed decisecond value, or use any non-zero remainder to the next larger whole decisecond value.
...
For the setsockopt() case, it will always use the final option. This means that a time of zero (i.e., not timeout) can only occur if the value zero was explicated provided to setsockopt().
2015-05-29 07:17:15 -06:00
3e6705b526
IPv6: Separate function that converts prefix lengths to a netmask
2015-02-06 08:11:09 -06:00
f4ce875711
Networking: Fix issues with UDP packet length and checksum calculations when IPv6 is selected
2015-01-23 09:33:18 -06:00
f7663ef0ab
Networking: Final detangle off IPv4 and IPv6 TCP/UDP send logic. The Networking subsystem now compiles with IPv6 enabled
2015-01-18 08:56:05 -06:00
a49f0231d2
Networking: A few more IPv6-related fixes
2015-01-14 18:34:28 -06:00
caba61999a
Remove CONFIG_DISABLE_CLOCK
2014-08-07 12:35:24 -06:00
811668cf15
NET: Move most of the contents of include/nuttx/net/igmp.h moved to net/igmp/igmp.h
2014-07-05 15:15:40 -06:00
a6b39d1879
NET: in-progress change... don't use
2014-07-04 16:38:51 -06:00
76fa58ee00
Move all socket-related files from net/ to net/socket. Move net/net.h to net/socket/socket.h
2014-06-28 17:25:18 -06:00
50b749a636
Clean-up naming associated with network checksums
2014-06-27 17:51:32 -06:00
d30217eb63
Move net/uip/uip_checksum.c to net/utils/net_chksum.c; fix missing Make.defs include in net/Makefile
2014-06-27 15:42:21 -06:00
64ba574ecc
Move files to net/utils; make appropriate name changes, most for uip_lock to net_lock
2014-06-26 14:23:21 -06:00
Zhe Weng