since the current txnotify is executed synchronously at the location of
the current call without switching threads, resources such as d_iob need
to be cached first.
Signed-off-by: zhanghongyu <zhanghongyu@xiaomi.com>
TCP_CORK and TCP_NODELAY behave almost exactly the opposite,
so first provide simple support for TCP_CORK.
Signed-off-by: zhanghongyu <zhanghongyu@xiaomi.com>
When using usrsock to pass the network interface name, omitting "\0" will cause the host to parse extra characters. therefore, the tail section should be inspected during device binding.
Signed-off-by: zhangshuai39 <zhangshuai39@xiaomi.com>
If there is data in readahead, it needs to be released; otherwise,
it will cause the leakage of IOB resources
Signed-off-by: zhanghongyu <zhanghongyu@xiaomi.com>
Ref: https://man7.org/linux/man-pages/man7/packet.7.html
1. For `socket(AF_PACKET, int socket_type, int protocol)`: When `protocol` is set to `htons(ETH_P_ALL)`, then all protocols are received. If `protocol` is set to zero, no packets are received.
2. For `bind`: `bind` can optionally be called with a nonzero `sll_protocol` to start receiving packets for the protocols specified.
Signed-off-by: Zhe Weng <wengzhe@xiaomi.com>
When app send a pkt-packet, then it will read back it and case some problem. Connection should not read back the message sent by itself.
Signed-off-by: gaohedong <gaohedong@xiaomi.com>
Inspired by Linux's way, we also create VLAN devices for managing VLAN,
which will become interfaces like `eth0.58`.
QinQ is also supported, we can create VLAN devices above another VLAN
devices, like `eth0.100.101` (or even `eth0.1.2.3.4`, also supported on
Linux).
Signed-off-by: Zhe Weng <wengzhe@xiaomi.com>
Resolve some timing issues caused by calling net_breaklock to release netlock in the function NET_BUFPOOL_TRYALLOC
Signed-off-by: wangchen <wangchen41@xiaomi.com>
If the NET_TCPBACKLOG configuration is not enabled, no I/O event will be
triggered for the socket file descriptor in poll/epoll. As a result, the
connection will not be accepted, leading to a failure in the TCP handshake.
The problem is that users may not have noticed this configuration,
no event will be received when polling the socket fd.
Signed-off-by: wangjianyu3 <wangjianyu3@xiaomi.com>
The TCP keep-alive implementation would send the probes and abort the
connection correctly, but without waking up the affected socket and
marking the connection as aborted. This patch from zhhyu7 in #16447
resolves the issue.
Signed-off-by: Matteo Golin <matteo.golin@gmail.com>
for tcp_listener(). fixed potential conflict between implicit
binding and port conflict detection.
Implicit binding automatically allocates an interface address during
connection,but port conflict detection occurs before binding/connecting.
This can cause issues when creating multiple TCP connections in succession.
If the first connection uses a random port via implicit binding, subsequent
connections might reuse the same port under current filtering rules,
leading to connect() failures.
Signed-off-by: nuttxs <zhaoqing.zhang@sony.com>
Previously, SIOCSCANBITRATE brought the iterface up to ensure changes
where immediately applied. This was confusing, see
https://lists.apache.org/thread/g8d0m6yp7noywhroby5br4hxt3r4og2c
Now SIOCSCANBITRATE fails is interface is up.
All existing SocketCAN drivers updated.
Signed-off-by: Carlos Sanchez <carlossanchez@geotab.com>
In a recent patch the socketcan timestamp generation was moved
to add it also when there is an active reader (previously the timestamp
was only added before storing the CAN frame in the read-ahead list).
It was working fine but I realized that the can_callback function is
also called when sending frames. In this case, the IO block is not allocated
yet and the code breaks.
This PR is to only generate the timestamp if the IO block is not NULL
(reading path) and skip it when it is NULL (sending path)
Signed-off-by: Javier Casas <javiercasas@geotab.com>
When a udp frame is processed without a listener a icmp frame is
returned indicating that there is no listener. The PR enables
sending this icmpv6 response over sixlowpan.
Signed-off-by: Laczen JMS <laczenjms@gmail.com>
Fix timestamp in socket CAN. Right now the timestamp is only generated
if there is no reader and the frame is stored in the read ahead list.
This is solved by moving the timestamp generation before the code flow
branch.
Signed-off-by: Javier Casas <javiercasas@geotab.com>
Update the handling of tcp packets over sixlowpan. `tcp_ipv6_input()`
can update the dev->d_iob. Assigning ipv6 to IPv6BUF makes sure that
the correct buffer is used.
Signed-off-by: Laczen JMS <laczenjms@gmail.com>
can_datahandler returns an unsigned value that represent the
number of bytes actually bufffered, but the call to iob_tryadd_queue
returns a negative value when it fails so that value can't be used as
can_datahandler return value because it is interpreted as unsigned so
a big number is wrongly returned when iob_tryadd_queue fails.
The fix is just setting the return value to zero when iob_tryadd_queue
fails, reflecting the actual meaning that no bytes have been buffered.
Add support for network statistics for CAN.
It includes counters for receive, sent
and drop frames.
Signed-off-by: Javier Casas <javiercasas@geotab.com>
