This patch fixed userspace headers conflict. Architecture-related definition and API should not be exposed to users.
Signed-off-by: ouyangxiangzhen <ouyangxiangzhen@xiaomi.com>
we will drop packet when tcp_close_eventhandler
is register and invoke by tcp_input. then we will always early return and
never stop, the peer will only close the connection if we send reset packet.
precondition:
close -> register tcp_close_eventhandler;
tcp_input -> tcp_callback(TCP_NEWDATA) -> devif_conn_event -> tcp_close_eventhandler
-> flags &= ~TCP_NEWDATA -> NOT entry tcp_data_event -> conn->recvreq NOT increase
old flow:
tcp_input -> tcp->seqno greater than conn->rcvseq -> tcp_send(TCP_ACK)
with this patch:
tcp_input -> tcp->seqno greater than conn->rcvseq -> !TCP_ESTABLISHED
-> case TCP_FIN_WAIT_1 -> dev->d_len greater than 0 -> tcp_reset
Signed-off-by: zhanghongyu <zhanghongyu@xiaomi.com>
supports the usrsock client to subscribe netlink events,
so that it can detect events such as link connection changes.
Signed-off-by: zhanghongyu <zhanghongyu@xiaomi.com>
now the lc_path of the client will not be the same as that of the server.
therefore, accept->peer = NULL will not be set when the client release
the conn, then when release accept conn, set
client->peer(accept->peer->peer) = NULL will cause used after free
Signed-off-by: zhanghongyu <zhanghongyu@xiaomi.com>
This has been broken at some point. Just fix it by copying the can frame and
the cmsg data into IOB, and fix devif_poll to copy out the full data.
The can drivers expect to find the timeout timestamp in the end of the frame.
Signed-off-by: Jukka Laitinen <jukkax@ssrc.tii.ae>
reason:
We can utilize percpu storage to hold information about the
current running task. If we intend to implement this feature, we would
need to define two macros that help us manage this percpu information
effectively.
up_this_task: This macro is designed to read the contents of the percpu
register to retrieve information about the current
running task.This allows us to quickly access
task-specific data without having to disable interrupts,
access global variables and obtain the current cpu index.
up_update_task: This macro is responsible for updating the contents of
the percpu register.It is typically called during
initialization or when a context switch occurs to ensure
that the percpu register reflects the information of the
newly running task.
Configuring NuttX and compile:
$ ./tools/configure.sh -l qemu-armv8a:nsh_smp
$ make
Running with qemu
$ qemu-system-aarch64 -cpu cortex-a53 -smp 4 -nographic \
-machine virt,virtualization=on,gic-version=3 \
-net none -chardev stdio,id=con,mux=on -serial chardev:con \
-mon chardev=con,mode=readline -kernel ./nuttx
Signed-off-by: hujun5 <hujun5@xiaomi.com>
According to RFC793, Section 3.4, Page 33. In the SYN_SENT state, if receive a ACK without the SYN, we should reset the connection and retransmit the SYN.
Signed-off-by: liqinhui <liqinhui@xiaomi.com>
1.Simplify the message process in rpmsg_socket_send_single
2.Add more lock protection in rpmsg socket
3.Fix the style issue
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
Referring to Linux,if there is only a loopback network device and the destination address does not belong to the loopback address, then the loopback network devices is not selected
Signed-off-by: wangchen <wangchen41@xiaomi.com>
The argument addr is a pointer to a sockaddr structure.
This structure is filled in with the address of the peer socket,
as known to the communications layer.
Signed-off-by: zhanghongyu <zhanghongyu@xiaomi.com>
Some app with same code runs on different cores in AMP mode,
need the physical core on which the function is called.
Signed-off-by: hujun5 <hujun5@xiaomi.com>
Signed-off-by: fangxinyong <fangxinyong@xiaomi.com>
Summary:
Implementation in accept4 is special, the requested newsock is saved as filep->priv. This will cause sock_file_close to use fs_heap_free filep->priv during close. When fs_heap is configured, the released memory will not be on fs_heap, causing a crash.
Signed-off-by: chenrun1 <chenrun1@xiaomi.com>
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>
Summary:
The conn->keeptimer units is decisecond，but its unit is treated as
half-second in the tcp_timer & tcp_get_timeout function.
Therefore conn>keeptimer needs to be divided by 5(DSEC_PER_HSEC)
to match half-second units.
Signed-off-by: zhangshuai39 <zhangshuai39@xiaomi.com>
detail: Add g_ prefix to can_dlc_to_len and len_to_can_dlc to
follow NuttX coding style conventions for global symbols,
improving code readability and maintainability.
Signed-off-by: zhaohaiyang1 <zhaohaiyang1@xiaomi.com>
