Commit Graph

49 Commits

Author SHA1 Message Date
liqinhui
0100e8338e net: Fix unreadable error when doing poll operation on tcp socket.
When do poll operation and the tcp connection state is TCP_ALLOCATED, eventset(POLLERR|POLLHUP) is return, causing the libuv poll_multiple_handles to fail.

Verification: Use the libuv test case ` uv_run_tests poll_multiple_handles`.
Signed-off-by: liqinhui <liqinhui@xiaomi.com>
2023-08-21 17:38:00 +08:00
zhanghongyu
9162800255 tcp_input: drop SYN when no free node in the backlog
Wait for the client to retransmit the ack before trying to allocate the
backlog

Signed-off-by: zhanghongyu <zhanghongyu@xiaomi.com>
2023-04-24 01:52:33 +08:00
ligd
c4ed55c6df socket: divide errno & s_error
Reference:
https: //man7.org/linux/man-pages/man2/connect.2.html

Signed-off-by: ligd <liguiding1@xiaomi.com>
2023-02-23 16:40:19 +01:00
zhanghongyu
86d602f734 tcp_netpoll: add assert into tcp_pollsetup when pollinfo invalid
In order to expose similar problems quickly in the future

Signed-off-by: zhanghongyu <zhanghongyu@xiaomi.com>
2023-01-28 23:27:14 +02:00
chao an
f2a7711ef8 net/soerr: add new _SO_CONN_SETERRNO() macro
support so error code set from conn instance

Signed-off-by: chao an <anchao@xiaomi.com>
2022-11-24 22:57:42 +08:00
wangbowen6
344c8be049 poll: add poll_notify() api and call it in all drivers
Signed-off-by: wangbowen6 <wangbowen6@xiaomi.com>
2022-09-26 12:06:32 +08:00
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
chao.an
8ae8c10954 net/poll: fix race condition if connect free before poll teardown
Net poll teardown is not protected by net lock, if the conn is released
before teardown, the assertion failure will be triggered during free dev
callback, this patch will add the net lock around net poll teardown to
fix race condition

nuttx/libs/libc/assert/lib_assert.c:36
nuttx/net/devif/devif_callback.c:85
nuttx/net/tcp/tcp_netpoll.c:405
nuttx/fs/vfs/fs_poll.c:244
nuttx/fs/vfs/fs_poll.c:500

Signed-off-by: chao.an <anchao@xiaomi.com>
2022-07-09 19:11:42 +08:00
chao.an
8fb2468785 net/tcp: remove the socket hook reference from netdev callback
Signed-off-by: chao.an <anchao@xiaomi.com>
2022-02-10 15:04:33 -03:00
chao.an
99cde13a11 net/inet: move socket flags into socket_conn_s
Signed-off-by: chao.an <anchao@xiaomi.com>
2022-02-10 15:04:33 -03:00
chao.an
9701a678bd net/tcp: add nonblock connect(2) support
Signed-off-by: chao.an <anchao@xiaomi.com>
2021-08-19 19:19:05 -07:00
YAMAMOTO Takashi
4878b7729c tcp: simplify readahead
Do not bother to preserve segment boundaries in the tcp
readahead queues.

* Avoid wasting the tail IOB space for each segments.
  Instead, pack the newly received data into the tail space
  of the last IOB. Also, advertise the tail space as
  a part of the window.

* Use IOB chain directly. Eliminate IOB queue overhead.

* Allow to accept only a part of a segment.

* This change improves the memory efficiency.
  And probably more importantly, allows less-confusing
  recv window advertisement behavior.
  Previously, even when we advertise N bytes window,
  we often couldn't actually accept N bytes. Depending on
  the segment sizes and IOB configurations, it was causing
  segment drops.
  Also, the previous code was moving the right edge of the
  window back and forth too often, even when nothing in
  the system was competing on the IOBs. Shrinking the
  window that way is a kinda well known recipe to confuse
  the peer stack.
2021-06-30 06:22:14 +09:00
YAMAMOTO Takashi
acc3596adc tcp_netpoll.c: Fix a performance issue with CONFIG_NET_TCP_WRITE_BUFFERS
Tested with a modified version of webclient, which uses non-blocking i/o.
The packet dumps look more reasonable with this change.
2021-04-05 06:16:46 -05:00
Alin Jerpelea
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
Xiang Xiao
63e3054ced Don't need monitor IOB buffer empty event for POLLOUT implementation
It's enough to check the buffer available in the net event handler

Change-Id: I2d7c7a03675cf6eff6ffb42a81b7c7245253e92c
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2020-05-13 06:50:07 -06:00
Xiang Xiao
346336bb9e Make the read ahead buffer unselectable
Here is the email loop talk about why it is better to remove the option:
https://groups.google.com/forum/#!topic/nuttx/AaNkS7oU6R0

Change-Id: Ib66c037752149ad4b2787ef447f966c77aa12aad
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2020-01-11 08:24:49 -06:00
Xiang Xiao
02b652ce1c Minor fix (#23)
* fix ieee802154/ieee802154_input.c:179:7: error: too few arguments to function 'iob_free'
       iob_free(container->ic_iob);
       ^~~~~~~~

ieee802154/ieee802154_input.c:180:7: error: too many arguments to function 'ieee802154_container_free'
       ieee802154_container_free(container, IOBUSER_NET_SOCK_IEEE802154);
       ^~~~~~~~~~~~~~~~~~~~~~~~~

* fix udp/udp_netpoll.c:327:10: warning: 'ret' may be used uninitialized in this function [-Wmaybe-uninitialized]

* fix local/local_netpoll.c:154:15: warning: implicit declaration of function 'nxsem_post'; did you mean 'sem_post'? [-Wimplicit-function-declaration]
               nxsem_post(fds->sem);
               ^~~~~~~~~~
               sem_post
2020-01-02 09:35:50 -06:00
Xiang Xiao
90c52e6f8f Squashed commit of the following:
Author: Gregory Nutt <gnutt@nuttx.org>

    Run all .h and .c files modified in last PR through nxstyle.

Author: Xiang Xiao <xiaoxiang@xiaomi.com>

    Net cleanup (#17)

    * Fix the semaphore usage issue found in tcp/udp

    1. The count semaphore need disable priority inheritance
    2. Loop again if net_lockedwait return -EINTR
    3. Call nxsem_trywait to avoid the race condition
    4. Call nxsem_post instead of sem_post

    * Put the work notifier into free list to avoid the heap fragment in the long run.  Since the allocation strategy is encapsulated internally, we can even refine the implementation later.

    * Network stack shouldn't allocate memory in the poll implementation to avoid the heap fragment in the long run, other modification include:

    1. Select MM_IOB automatically since ICMP[v6] socket can't work without the read ahead buffer
    2. Remove the net lock since xxx_callback_free already do the same thing
    3. TCP/UDP poll should work even the read ahead buffer isn't enabled at all

    * Add NET_ prefix for UDP_NOTIFIER and TCP_NOTIFIER option to align with other UDP/TCP option convention

    * Remove the unused _SF_[IDLE|ACCEPT|SEND|RECV|MASK] flags since there are code to set/clear these flags, but nobody check them.
2019-12-31 09:26:14 -06:00
Xiang Xiao
1905e01fda net/: ICMP/ICMPv6/TCP/UDP poll shouldn't set POLLHUP and POLLOUT at the same time the standard require that only report POLLHUP:
https://pubs.opengroup.org/onlinepubs/009695399/functions/poll.html.
2019-11-25 09:59:50 -06:00
Xiang Xiao
af9c67ab58 net/tcp/tcp_netpoll.c and net/udp/udp_netpoll.c: In [tcp|udp]_iob_work fix the wrong condition logic (& vs &&). 2019-11-25 09:32:24 -06:00
Xiang Xiao
98fc60eb75 [tcp|udp]_poll_eventhandler check psock_[tcp|udp]_cansend before report POLLOUT. Change the unbuffered psock_[tcp|udp]_cansend return OK to unify the code logic and remove the unnecessary [tcp|udp]_poll_txnotify call. 2019-11-24 10:30:48 -06:00
Xiang Xiao
673f812c4e net/tcp/tcp_netpoll.c: Monitor TCP_POLL/TCP_NEWDATA/TCP_BACKLOG per the request like UDP counterpart. 2019-11-24 10:20:01 -06:00
Gregory Nutt
88130a996a net/: Fixes for more coding standard issues detected by nxstyle. 2018-10-29 18:00:30 -06:00
Gregory Nutt
11d181d3d3 net/tcp/tcp_netpoll.c: 'if' should have been 'else if' 2018-09-12 15:14:24 -06:00
Gregory Nutt
6e60af91e4 net/udp/udp_netpoll.c: Port TCP poll changes to UDP. 2018-09-12 10:10:54 -06:00
Gregory Nutt
b3f0aab00a Squashed commit of the following:
sched/wqueue/kwork_notifier.c:  Redesign some data structures.  struct works_s must appear at the beginning of the notifier entry structure.  That is because it contains the work queue indices.  This solves a harfault issue.

    net/tcp/tcp_netpoll.c:  tcp_iob_work() needs to free the allocated argument when it is finished.

    net/tcp/tcp_send_buffered.c:  Extend psock_tcp_cansend() so that it also requires that at least on IOB is also avaialble.

    mm/iob:  iob_navail() was returning the number of free IOB chain queue entries, not the number of free IOBs.  Completely misnamed.

    net/tcp/tcp_netpoll.c:  Add logic to receive notifications when IOBs are freed (Needs CONFIG_NET_TCP_WRITE_BUFFERS and CONFIG_IOB_NOTIFIER).  At present, does nothing because the logic in in psock_tcp_cansend() does not check for the availability of IOBs.  That will change.
2018-09-12 08:57:06 -06:00
Gregory Nutt
a680553f35 net/tcp/tcp_netpoll.c: Add logic to receive notifications when IOBs are freed (Needs CONFIG_NET_TCP_WRITE_BUFFERS and CONFIG_IOB_NOTIFIER). At present, does nothing because the logic in in psock_tcp_cansend() does not check for the availability of IOBs. That will change. 2018-09-12 06:40:18 -06:00
Gregory Nutt
884ee6e43e net/tcp and net/udp: In the POLLOUT poll logic, request an immediate Tx poll from the network device bound to the socket. This obviously cannot work if there is not single device bound to the network device. 2018-09-11 10:31:11 -06:00
Gregory Nutt
b54ffe858a Standardization of some function headers. 2018-03-13 09:52:27 -06:00
Gregory Nutt
82cb799bb6 net/udp: Fix memory leak with UDP + write buffer is closed. Also update TODO and comments and refresh a configuration. 2018-01-23 11:54:03 -06:00
Gregory Nutt
cf5cba953d There was a possible recursion that could eventually overflow the stack. The error occurred when closing the socket with inet_close() while a socket callback was still queued. When the socket callback was executed by devif_conn_event(), this resulted in a call to psock_send_eventhandler() with TCP_CLOSE flag set which then called tcp_lost_connection(). tcp_shutdown_monitor() then called tcp_callback() again, which again called psock_send_eventhandler(), and so on.... Noted by Pascal Speck. Solution is also similar to a solution proposed by Pascal Speck. 2017-10-19 11:55:51 -06:00
Gregory Nutt
42a0796615 Squashed commit of the following:
sched/semaphore:  Add nxsem_post() which is identical to sem_post() except that it never modifies the errno variable.  Changed all references to sem_post in the OS to nxsem_post().

    sched/semaphore:  Add nxsem_destroy() which is identical to sem_destroy() except that it never modifies the errno variable.  Changed all references to sem_destroy() in the OS to nxsem_destroy().

    libc/semaphore and sched/semaphore:  Add nxsem_getprotocol() and nxsem_setprotocola which are identical to sem_getprotocol() and set_setprotocol() except that they never modifies the errno variable.  Changed all references to sem_setprotocol in the OS to nxsem_setprotocol().  sem_getprotocol() was not used in the OS
2017-10-03 15:35:24 -06:00
Gregory Nutt
8ffb103adb networking: IGMP: Remove special support for interrupt level processing (there is none) and fix some timer cancellation logic. In many files, correct comments. There is no interrupt level processing in the networking layer. 2017-09-02 10:27:03 -06:00
Gregory Nutt
8c2e3a2d0a Networking: Fix a copy/paste error introduced with recent disconnection changes. 2017-09-01 11:56:48 -06:00
Gregory Nutt
0b2a4eb4bd Networking: A little more wording changes related to interrupts vs. events 2017-08-29 15:08:38 -06:00
Gregory Nutt
04ad162540 Networking: Clean up some naming that has bothered me for a long time... There are no interrupts and no interrupt handlers in the network. There are events and event handler (there used to to be interrupt logic in there years ago but that is long, long gone). 2017-08-29 14:08:04 -06:00
Gregory Nutt
0f7a52bc28 Networking: Fix a runaway recursion problem introduced the previous fixe for shutting down dup'ed sockets. 2017-08-29 12:27:58 -06:00
Gregory Nutt
92f44c5607 Networking: Move net/inet/net_monitor.c to net/tcp/tcp_monitor.c in preparation for design change to fix monitoring of duplicated sockets. 2017-08-29 08:40:13 -06:00
Gregory Nutt
3c6981534f Networking: Move INET socket interface out of net/sockets to its own directory net/inet 2017-08-06 14:48:19 -06:00
Gregory Nutt
d5207efb5a Be consistent... Use Name: consistent in function headers vs Function: 2017-04-21 16:33:14 -06:00
Gregory Nutt
7467329a98 Eliminate CONFIG_NO_NOINTS. Lots of files changed -> lots of testing needed. 2016-12-03 16:28:19 -06:00
Gregory Nutt
43eb04bb8f Without lowsyslog() *llinfo() is not useful. Eliminate and replace with *info(). 2016-06-20 11:59:15 -06:00
Gregory Nutt
1cdc746726 Rename CONFIG_DEBUG to CONFIG_DEBUG_FEATURES 2016-06-11 14:14:08 -06:00
Gregory Nutt
fc3540cffe Replace all occurrences of vdbg with vinfo 2016-06-11 11:59:51 -06:00
Andrew Webster
df211ee46a TCP: add writable check during poll
When a poll requesting POLLOUT happens, the poll should return
immediately if a write will not block.  This change adds that, as
opposed to the old behaviour of blocking until a timer from the
Ethernet driver eventually triggers the poll to complete.

This is only implemented for buffered TCP.  Unbuffered TCP should
behave as before.
2016-01-22 15:52:14 -06:00
Gregory Nutt
9fcad39a45 Trivial typo fix 2015-09-02 10:09:33 -06:00
Gregory Nutt
04a661a97c TCP networking: Add support for network driver events 2015-05-30 09:12:27 -06:00
Gregory Nutt
e672bcebfd UDP Networking: Add support for device event notification for UDP transfers. 2015-05-29 10:21:06 -06:00
Gregory Nutt
a438784054 Forgot to add a file in the last commit 2015-01-30 07:28:30 -06:00