Commit Graph

1862 Commits

Author SHA1 Message Date
Gregory Nutt
16b1c276bd net/netlink/netlink_conn.c: Fix some really basic errors in the redesign of the asynchronous Netlink response logic. 2019-11-28 16:14:59 -06:00
Gregory Nutt
4ae09a3b80 net/netlink: Redesign the logic that handles notifications of when response data is available. Signal handlers are sub-optimal inside the OS (especially after the preceding change which forces the hand). Instead, use the work queue notifiers as is done with all other network notifiers. 2019-11-28 14:20:40 -06:00
Gregory Nutt
69318b1024 Re-implements reverted commit 344f7bc9f6 in a way that should not have the undesired side-effect. include/nuttx/sched.h: Add a bit to the TCB flags to indicat the thread is a user thread in a syscall. sched/nuttx/nxsig_dispatch.c: Delay dispatching to signal handlers if within a system call. In all syscall implementations: Process delayed signal handling when exiting system call. 2019-11-28 12:47:36 -06:00
Gregory Nutt
cbdd590c82 Revert "include/nuttx/sched.h: Add storage for a previous signal mask. arch/: In all syscall implementations, block all signals before dispatching a system call; resotre signal mask when the system call returns."
Using the sigprocmask() for this purpose has too many side-effects.

This reverts commit 344f7bc9f6.
2019-11-28 11:57:54 -06:00
Gregory Nutt
344f7bc9f6 include/nuttx/sched.h: Add storage for a previous signal mask. arch/: In all syscall implemenations, block all signals before dispatching a system call; resotre signal mask when the system call returnes. 2019-11-28 10:51:29 -06:00
Gregory Nutt
d1593bb336 Squashed commit of the following:
net/netlink/netlink_sockif.c:  At implementation of response available signal handler needed for POLLIN logic.
    net/netlink/netlink_sockif.c:  Add logic to set up signal handler to receive the response notification.
2019-11-27 21:30:01 -06:00
Gregory Nutt
a8f3c3651a net/netlink/netlink_conn.c: Use nxsig_queue() instead of nxsig_kill() so that we can pass a reference to the connection structure with the signal. 2019-11-27 19:31:23 -06:00
Xiang Xiao
e1e192fc33 net/: icmp[v6] fix ping[6] complain 'WARNING: Received after timeout'. The root cause is that icmp[v6]_pollsetup monitors ICMP[v6]_NEWDATA, but icmp[v6]_input reports ICMP[v6]_ECHOREPLY. This change lets icmp[v6]_input report report ICMP[v6]_NEWDATA to fix this issue and remove ICMP[v6]_ECHOREPLY to avoid the wrong usage in the future. 2019-11-27 08:09:51 -06:00
Xiang Xiao
250bde034d net/: icmp[v6]_pollsetup should always return POLLWRNORM if the caller requests it since ICMP[v6] doesn't utilize IOB buffer for sending and always needs to wait for an ICMP[v6]_POLL. 2019-11-27 08:04:14 -06:00
Xiang Xiao
ea666877f2 net/devif/devif_callback.c: Restore cf9f2c56cb. That restored change plus the following additional commits reolves the issue raised by Valmantas Palikša. 2019-11-27 07:59:52 -06:00
Gregory Nutt
93ed8b66d9 net/netlink: Add partial support for the NETLINK poll() operation. Still missing is some signal handling logic that actually wakes up the poll() when an asynchronous NETLLINK response is available.
So although the poll() implemenation is still not yet usable, the commit is useful because it (1) does not harm, and (2) incidentally fixes a few other issues in the NETLONK response queuing that I noted in the process.
2019-11-26 18:52:22 -06:00
Xiang Xiao
8214973f80 net/usrsock/usrsock_poll.c: usrsock_pollsetup() doesn't need logic and with fds->events since line 279 will do the same thing:
fds->revents &= (~(POLLOUT | POLLIN) | info->fds->events);
2019-11-25 11:44:58 -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
34ec7c97eb net/icmp/icmp_netpoll.c and icmpv6/icmpv6_netpoll.c: ICMP/ICMPv6 should always report POLLHUP and POLLERR, regardless of requested 'events'. 2019-11-25 09:57:49 -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
Gregory Nutt
f1ffb300da net/devif/devif_callback.c: This commit reverts the core of commit cf9f2c56cb pending further investigation. Valmantas Palikša reports that this change cause timeout errors during pinging. 2019-11-25 07:34:41 -06:00
Xiang Xiao
506b83f8d9 net/inet/inet_close.c: In tcp_close_eventhandler(), check TCP_NEWDATA flag before process and don't eat the flag for TCP_DISCONN_EVENTS 2019-11-24 10:41:11 -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
Xiang Xiao
893fc6e1cf net/udp/udp_netpoll.c: Report POLLHUP and POLLERR in 'revents' regardless the requested 'events' set. Per Opengroup.org, these bits must be ignored in the 'events' set. 2019-11-24 10:18:08 -06:00
Xiang Xiao
cf9f2c56cb et/devif/devif_callback.c: devif_event_trigger shouldn't return true if triggers & DEVPOLL_MASK equal zero() 2019-11-24 10:11:19 -06:00
Gregory Nutt
9efadaefc1 net/tcp: Be consistent with units of TIME_WAIT. Units were unspecified in tcp/Kconfig, but assumed to be in units of half seconds in tcp/timer.h. include/nuttx/netconfig does not indicate the units but is apparently assuming seconds. This commit unifies all delays to clearly specified units of seconds. 2019-11-24 09:19:54 -06:00
Xiang Xiao
e0307fcd8f boards/sim/sim/sim/src/sim_bringup.c: Mount tmpfs to CONFIG_LIBC_TMPDIR in sim_bringup if CONFIG_FS_TMPFS is defined. 2019-11-23 07:58:50 -06:00
Gregory Nutt
bc8d964cb9 net/netlink: Add some comments about 'Input Parameters' 2019-11-19 20:46:43 -06:00
Gregory Nutt
b72f7cf47f net/netlink/netlink_route.c: Fix a case where #if was used but #ifdef was intended. 2019-11-19 09:47:57 -06:00
Gregory Nutt
b659c74440 net/netlink/netlink_sockif.c: Netlink sockets may be set to non-blocking. 2019-11-19 07:50:46 -06:00
Gregory Nutt
936d69da1f net/netlink and include/nuttx/net/netlink.h: Make netlink_add_response() a globally access part of the network interface. This is necesssary to support netlink components that reside outside of the net/ sandbox. 2019-11-18 21:12:50 -06:00
Gregory Nutt
a7a1b0888e net/netlink/netlink_route.c: Remove dangling whitespace at the end of lines. 2019-11-18 10:47:35 -06:00
Gregory Nutt
6479775721 net/netlink/netlink_conn.c: Add support for asynchronous Netlink responses. 2019-11-18 09:48:14 -06:00
Gregory Nutt
ab78f0ca0a include/netpacket/netlink.h: Backout some preliminary NETLINK_CRYPTO definitions. These are premature (but may come back). 2019-11-17 10:47:24 -06:00
Gregory Nutt
82a4111a2b include/netpacket/netlink.h: Add definitions that will be needed for future NETLINK_CRYPTO support. 2019-11-14 09:18:11 -06:00
Gregory Nutt
9d6c607afc net/netlink/netlink_route.c: Add some comments. 2019-11-12 10:36:05 -06:00
Gregory Nutt
3e1937b49b net/netlink: Add options to disable individual NETLINK_ROUTE commands. This will probably become quite large and will need to be higher tunable for smaller platforms. 2019-11-12 10:19:42 -06:00
Gregory Nutt
3811a0f5cc net/netlink/netlink_route.c: Update some comments. 2019-11-12 07:59:43 -06:00
Gregory Nutt
ecbd5a85d7 net/netlink: Fixes from testing with new apps/examples/netlink_route. 2019-11-11 13:38:11 -06:00
Gregory Nutt
71a968ad71 net/netlink/netlink_route.c: Add missing routing table list terminating response. 2019-11-10 15:00:05 -06:00
Gregory Nutt
3a8a829088 net/netlink/netlink_route.c: Add support for obtaining the entire routing table. 2019-11-10 14:11:44 -06:00
Gregory Nutt
bda0a9c6a7 net/netlink: Fix offset in rtattr. include/net/route.h: Correct form and naming of sruct rtentry. include/netpacket/netlink.h: Add some definitions that will be needed to access routing tables. 2019-11-10 12:35:15 -06:00
Gregory Nutt
8c85ecf531 net/netlink/netlink_route.c: Add support for the NETLINK_ROUTE RTM_GETLINK command that is used to obtain a list of all devices in the UP state. 2019-11-09 17:36:30 -06:00
Gregory Nutt
b6756eb5fe Trivial update to some comments. 2019-11-08 12:06:29 -06:00
Gregory Nutt
dbbabcd33c Squashed commit of the following:
net/netlink/netlink_route.c:  Add Netlink socket NETLINK_ROUTE support for getting a snopshot of the Neighbor table.

    net/neighbor/neighbor_snapshot.c:  Add neighbor_snapshot() that will eventually be used by the Netlink sockets.  Also fixed naming violation 'struct neighbor_entry' -> 'struct neighbor_entry_s'.

    include/nuttx/net/neighbor.h:  Expose format of the IPv6 neighbor table for use with Netlink sockets.
2019-11-08 11:16:04 -06:00
Gregory Nutt
d31411189e net/netlink/Kconfig: Remove dependency on EXPERIMENTAL. Although the Netlink implementation is still only fragmentary, there is no usable functionality there and no reason for it to depend on EXPERIMENTAL. Also minor changes to the menu organization so that the Netlink options appear the same was as do other network options. 2019-11-07 14:10:35 -06:00
Gregory Nutt
38e527deeb net/netlink: Fix cosmetic issues, mostly typo fixes. 2019-11-04 14:06:07 -06:00
Gregory Nutt
6d13705e93 net/netlink: The NETLINK_ROUTE logic needs to return the first queued response and not attempt to match up reponses with requests. That is the Linux compatible way. Also, use queue.h functions for list management and fix an error in arp_snapshot(). 2019-11-04 09:02:14 -06:00
Gregory Nutt
7bd045130c net/netlink/: Misc bugfixes from initial testing using NSH 'arp -t' command. 2019-11-03 19:27:58 -06:00
Gregory Nutt
2991987018 net/netlink/netlink_route.c (mostly): This completes a minimal netlink implementation that will retrieve the ARP table.
net/netlink:  Add basic hooks (only) to support the NETLINK_ROUTE protocol.
2019-11-03 13:59:42 -06:00
Gregory Nutt
3b275fcf4e net/: Run nxstyle against all C files. 2019-10-25 11:31:42 -06:00
Gregory Nutt
1ba23bb75c net/udp/udp_psock_sendto_buffered.c: Add a check for the device that is polling. In the multiple network device case, this check is necessary to prevent sending the UDP packet to the wrong device. This change addresses the buffered case and is the companion to commit 6c46c48e4b. 2019-10-18 16:04:33 -06:00
Gregory Nutt
6c46c48e4b net/udp/udp_psock_sendto_unbuffered.c: Add a check for the device that is polling. In the multiple network device case, this check is necessary to prevent sending the UDP packet to the wrong device. This change addresses only the unbuffered case. The buffered case is more complex. See patch attached to issue 172. 2019-10-18 14:20:34 -06:00
Gregory Nutt
93452d70ef net/inet/inet_close.c: Fix a warning found in build testing. 2019-09-28 12:57:26 -06:00
Gregory Nutt
81aecdce1e net/igmp/igmp_send.c: Fix a typo in a debug statement. Noted by Bernd Walter. 2019-09-25 13:46:24 -06:00
Gregory Nutt
0b9416a40c net/inet/inet_close.c: Still fussing with f3ab9abe51. Re-analyze all disconnection events, update comments, removed one of two non-standard return values. A failure is returned only in cases where the socket was not actually closed. 2019-09-25 08:16:37 -06:00
Gregory Nutt
8e079d73d9 Update a comment. 2019-09-25 07:39:49 -06:00
Gregory Nutt
f3ab9abe51 net/inet/inet_close.c: Fixes two problems, both noted by Bernd Walter:
1) The change of commit ed9fe70024 left some dangling logic and incorrect, confusing comments.  Prior to that commit the 'pstate' variable was non-NULL only when doing a lingering close.  Comments to this effect as well as tests of pstate should also have been updated.  These are confusing and inappropriate, but do not lead to incorrect behavior.

2) Eliminate an incomplete test when a disconnection event. When a disconnection event occurs, the close logic MUST always terminate the wait.  The conditional test was not incorrect, however, it lacked 'else' logic and would simply ignore that disconnection event in some cases.  That is bad because there may not be another disconnection event and that can lead to hangs (or at least very, very long delays).
2019-09-25 07:24:20 -06:00
Bernd Walter
0008ff33b3 net/icmpv6/icmpv6_rnotify.c: Correct a bad index in debug output. 2019-09-25 06:29:02 -06:00
Bernd Walter
338f09acfc drivers/net and net/: Use ntoh() when printing IPv6 addresses so that the addresses appear in friendlier host order vs. network order. 2019-09-24 10:06:42 -06:00
Xiang Xiao
9830791960 net/icmpv6/icmpv6_poll.c: Fix typo error in icmpv6_poll. 2019-09-24 09:28:07 -06:00
Xiang Xiao
b4e7ca5aac net/icmpv6/icmpv6_autoconfig.c: cmpv6_autoconfig() error handling must not overwrite overwrite the error code. 2019-09-20 12:51:37 -06:00
Xiang Xiao
6c484847d5 net/: Decouple autoconfig and icmpv6 socket to avoid the invalid kconfig combination. 2019-09-20 12:45:05 -06:00
Gregory Nutt
23e1d2e403 Dispatch ICMP_POLL to device's callback list too since icmpv6_neighbor still append the callback into this list. 2019-09-20 07:54:10 -06:00
Juha Niskanen
e8b5dd4528 Fix use of undefined pp-token #errror, other typos. 2019-09-19 18:19:18 -06:00
Xiang Xiao
5fd8f78bf9 net/ipforward, tcp, and udp: Fix a chicken and egg problem by eliminating the check of the arp/neighbor tables before packet transmission
1. For buffered tcp/udp case, if CONFIG_NET_ARP_SEND/CONFIG_NET_ARP_IPIN/CONFIG_NET_ICMPv6_NEIGHBOR isn't enabled and the table doesn't contain ip<->ethaddr mapping yet, the logic will skip the realtransmission and then arp/neighbor can't steal the final buffer to generate arp/icmpv6 packet.
2.for all other case, the tcp layer or user program should already contain the retransmit logic, the check is redundancy and may generate many duplicated packets if arp/icmpv6 response is too slow because the cursor stop forward. If user still concern about the very first packet lost, he could fix the issue by enabling CONFIG_NET_ARP_SEND/CONFIG_NET_ICMPv6_NEIGHBOR at begin.
2019-09-18 12:33:41 -06:00
Nathan Hartman
366053e464 Fix typos, 1 in a #define, others in comments. This changes one definition: _MQ_TIMEDRECIEVE is changed to _MQ_TIMEDRECEIVE. It appears this symbol is not used anywhere. 2019-09-11 08:56:56 -06:00
Gregory Nutt
c5066f9f4c net/ipforward/ipv4_forward.c: Correct some errors introduced with commit a52ceac13e. Noted by Adam Porter. 2019-09-06 16:01:38 -06:00
Gregory Nutt
7871e983b8 net/tcp/tcp_send.c: Commit a52ceac13e broke IPv4 sending. In cp_send.c:tcp_ipv4_sendcomplete(), ‘ipv4->vhl’ now needs to be configured before call to tcp_ipv4_chksum(). Noted by Jussi Kivilinna in comit comments. 2019-09-06 09:48:42 -06:00
Juha Niskanen
822bb06967 Fix some typos. Also minor update to stm32f7/nucleo-144/README.txt and stm32l4/nucleo-l496zg/README.txt board documentation. 2019-09-05 08:12:50 -06:00
Gregory Nutt
100fe59ff2 net/arp/arp.h: Remove an unused structure definition. 2019-09-01 17:49:44 -06:00
Gregory Nutt
d596e56c3d net/local/local_conn.c: Removed un-ncessary memset(). Connection structure is allocated with kmm_zalloc() which will clear all memory. 2019-09-01 11:23:40 -06:00
Gregory Nutt
6266e067e9 net/: Re-order the content of all address-family socket 'connection' structures so that they begin with a comomon prologue. This permits better use of logic for different address family types. 2019-09-01 08:47:01 -06:00
Gregory Nutt
a52ceac13e net/: Now handles reception of IPv4 packets with larger IPv4 headers containing options. 2019-08-31 12:25:30 -06:00
Gregory Nutt
9bdde04636 net/Kconfig: Ethernet packet buffer size cannot be permitted to go below 1294 is IPv6 is selected. 2019-08-31 09:08:32 -06:00
zhangyuan7
b33fc302f0 net/inet and net/tcp: Fix tcp close flow; free the connection after all tcp close process finished. 2019-08-30 06:44:43 -06:00
Gregory Nutt
ac151e05e7 Fix warnings found in build testing. 2019-08-27 16:20:39 -06:00
zhangyuan7
ba598841e5 net/tcp/Kconfig, include/nuttx/net/netconfig.h: Make RTO and WAIT_TIME configurable. This fix is not really correct: TCP RTO really should be calculated dynamically for each TCP connection: http://sgros.blogspot.com/2012/02/calculating-tcp-rto.html. 2019-08-26 11:03:27 -06:00
biantao
f1c46b4498 net/tcp/tcp_send.c: Fix RST packet with wrong ack number. 2019-08-26 10:16:43 -06:00
Gregory Nutt
27e4bfffd4 Update some comments and README files. 2019-08-24 13:06:43 -06:00
Anthony Merlino
c024a1f569 Merged in antmerlino/nuttx/xbee-prefix (pull request #1009)
drivers/ieee802154/xbee: Add configuration option for setting the default prefix to use when bringing up the network and setting the IP address.

# Conflicts:
#	drivers/wireless/ieee802154/xbee/xbee_netdev.c

Approved-by: Gregory Nutt <gnutt@nuttx.org>
2019-08-19 22:24:32 +00:00
Anthony Merlino
70404ed0dc Merged in antmerlino/nuttx/iobinstrumentation (pull request #1001)
Iobinstrumentation

* mm/iob: Introduces producer/consumer id to every iob call. This is so that the calls can be instrumented to monitor the IOB resources.

* iob instrumentation - Merges producer/consumer enumeration for simpler IOB user.

* fs/procfs: Starts adding support for /proc/iobinfo

* fs/procfs: Finishes first pass of simple IOB user stastics and /proc/iobinfo entry

Approved-by: Gregory Nutt <gnutt@nuttx.org>
2019-08-16 22:42:25 +00:00
Anthony Merlino
fc1780d63e Merged in antmerlino/nuttx/sixlowpan-removeconversions (pull request #997)
ieee802154/sixlowpan: Removes unnecessary conversions that were happening due to a misunderstanding of byte ordering with EUI-64

# Conflicts:
#	drivers/wireless/ieee802154/xbee/xbee_netdev.c

Approved-by: Gregory Nutt <gnutt@nuttx.org>
2019-08-16 01:26:44 +00:00
Anthony Merlino
7c06438315 Merged in antmerlino/nuttx/ipforward (pull request #981)
net/ipforward: Check if interface is up early on when forwarding to avoid extra work.

As noticed in a previous wireless commit, when forwarding is enabled and a packet comes in, the packet is attempted to be sent on each other netdev without regard for whether it is in the UP state. Of course this is eventually caught, but it can be caught earlier to avoid unnecessary work, especially in the 6LoWPAN case where a useless packet conversion will occur.

Approved-by: Gregory Nutt <gnutt@nuttx.org>
2019-08-10 17:53:06 +00:00
David Sidrane
1e90dd9284 net/socket/getpeername: Fixed warning in DEBUG code. 2019-08-07 07:53:56 -06:00
Juha Niskanen
d5382cde17 net/udp/udp_psock_sendto_buffered.c: Fixes a copy-paste error in the new SO_LINGER code: CONFIG_TCP_NOTIFIER to CONFIG_UDP_NOTIFIER. 2019-08-05 07:42:14 -06:00
Nathan Hartman
68d43d3679 Fix typos. 2019-08-04 14:50:28 -06:00
David S. Alessio
20e8a83c5f net/udp/udp_txdrain.c: Add missing header file. 2019-07-29 08:12:55 -06:00
Gregory Nutt
124212624d net: Minor fix in error checking in TCP/UDP Tx drain logic 2019-07-28 07:39:55 -06:00
Gregory Nutt
361d85ae35 net/tcp and udp: Fix errors in the new implementation of SO_LINGER. The tcp_drain() and udp_drain() functions were casting the working argument to the wrong type, resulting in hangs and abnormal behavior. There is a complexity in the tcp drain logic when the remote peer closes the socket before all Tx data has been flushed. Sometimes we are not notified of this case and wait the entire timeout unnecessarily. There is a workaround in place in tcp_txdrain(), but this really should be revisited. 2019-07-27 10:26:52 -06:00
Masayuki Ishikawa
5fd5cc0b0a Merged in masayuki2009/nuttx.nuttx/change_udp_broadcast (pull request #954)
net/udp: Remove net stack dependency from CONFIG_NET_BROADCAST

This change allows us to use CONFIG_NET_BROADCAST without network
stack. (i.e. usrsock application can use broadcast)

Signed-off-by: Masayuki Ishikawa <Masayuki.Ishikawa@jp.sony.com>

Approved-by: Gregory Nutt <gnutt@nuttx.org>
2019-07-26 14:05:03 +00:00
Bernd Walter
5d01ce6c58 net/icmpv6/icmpv6_autoconfig.c: Use ntohs() to convert IPv6 address from network to host order int network debug output. 2019-07-06 07:02:51 -06:00
Gregory Nutt
1346f29151 net/: Fix alignment and spacing problems found by tools/nxstyle. 2019-07-02 18:02:23 -06:00
Gregory Nutt
574595dc32 Still fixing new warnings found in build testing. 2019-07-01 15:56:34 -06:00
Gregory Nutt
8774977f4d Fix warnings found in build testing. 2019-07-01 15:22:42 -06:00
Gregory Nutt
077d164b14 /net/inet: Simplify design of change in last commit. 2019-07-01 14:07:12 -06:00
Gregory Nutt
de5a6163d5 This commit implements a proper version of SO_LINGER. Not sufficiently tested on initial commit.
Squashed commit of the following:

    net/: Fix some naming inconsistencies, Fix final compilation issies.

    net/inet/inet_close():  Now that we have logic to drain the buffered TX data, we can implement a proper lingering close.

    net/inet,tcp,udp:  Add functions to wait for write buffers to drain.

    net/udp:  Add support for notification when the UDP write buffer becomes empty.

    net/tcp:  Add support for notification when the TCP write buffer becomes empty.
2019-07-01 12:25:32 -06:00
Gregory Nutt
ded1900927 include/nuttx/net/net.h: Fix some long lines. 2019-07-01 09:18:38 -06:00
Gregory Nutt
b0f751897c net/inet/inet_close.c: Extend some comments. 2019-07-01 08:24:39 -06:00
Gregory Nutt
5e36627366 Update TODO list and fix an error in conditional compilation that I introduced with the last commit. 2019-07-01 08:12:51 -06:00
Gregory Nutt
5af5fc4409 net/inet/inet_close.c: Last PR remove SO_LINGER socket option. SO_LINGER was always enabled is CONFIG_NET_SOLINGER was selected. 2019-07-01 07:37:41 -06:00
Masayuki Ishikawa
ed9fe70024 Merged in masayuki2009/nuttx.nuttx/fix_tcp_active_close (pull request #923)
net/inet: Fix tcp active close in inet_close.c

In previous implementation, FIN packet was not sent when a socket
is actively closed (e.g. telnetd or webserver) without SO_LINGER.
This issue happens because the socket closing sequence waits for
the status.cl_sem only if lingering timeout is set. However,
in many server use-cases, SO_LINGER is not usually set and even
in these cases, FIN packet must be sent correctly.

This PR changes the logic in inet_close.c so that it can wait
for status.cl_sem regardless of SO_LINGER. Instead, if SO_LINGER
is set, it waits for the semaphore with timeout option.

Signed-off-by: Masayuki Ishikawa <Masayuki.Ishikawa@jp.sony.com>

Approved-by: Gregory Nutt <gnutt@nuttx.org>
2019-07-01 13:25:47 +00:00
Gregory Nutt
d0c569d7b5 net/tcp/tcp_send_buffered.c: Fix a warning reported in build testing. 2019-06-21 13:48:27 -06:00
Juha Niskanen
abc49a6a13 arch/arm/src/stm32l4: if SRAM3 is used as heap, do not power it off in stop 2 mode. 2019-06-13 05:52:40 -06:00