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147 Commits

Author SHA1 Message Date
Gregory Nutt
0fb035f76b Standardize some naming in code section comments 2016-02-21 18:09:04 -06:00
Andrew Webster
4875c6bbe3 TCP: check for connection before deleting it 
It is possible for a socket to have no connection, for example if a TCP
socket is waiting in accept.  This checks for this condition in case the
socket is closed from a different thread.
 2016-01-22 15:59:15 -06:00
Andrew Webster
f1ef2c6cde TCP: attempt to flush the write buffers before closing 
When a socket is closed, it should make sure that any pending write
data is sent before the FIN is sent.  It already would wait for all
sent data to be acked, however it would discard any pending write
data that had not been sent at least once.

This change adds a check for pending write data in addition to unacked
data.  However, to be able to actually send any new data, the send
callback must be left.  The callback should be freed later when the socket
is actually destroyed.
 2016-01-22 15:58:02 -06:00
Gregory Nutt
f348e68069 Update to use 64-bit timer when available 2016-01-21 11:54:26 -06:00
Gregory Nutt
6209c51206 net/: More clean-up of spacing/alignment issues 2015-10-08 15:10:04 -06:00
Gregory Nutt
0b12dbf95d Fix some spacing problems 2015-10-04 15:04:00 -06:00
Gregory Nutt
cb9e27c3b0 Standardize naming used for public data and function groupings 2015-10-02 16:30:35 -06:00
Gregory Nutt
fec3d2cf62 recvfrom: Fixes for compilation with only raw, packet sockets 2015-09-14 09:06:08 -06:00
Paul A. Patience
3b89eabd50 Correct #if to #ifdef when the macro can be undefined. Fix bug in AT24XX driver: it should compare AT24XX_ADDRSIZE to 2. 2015-09-01 13:52:29 -04:00
Gregory Nutt
63071a563a Costmetic changes 2015-08-27 10:38:43 -06:00
Gregory Nutt
b1e09d4847 net/socket and net/tcp: Fix a problem in whent there are multiple network devices. Polls were being sent to all TCP sockets before. This is not good because it means that packets may sometimes be sent out on the wrong device. That is inefficient because it will cause retransmissions and bad performance. But, worse, when one of the devices is not Ethernet, it will have a different MSS and, as a result, incorrect data transfers can cause crashes. The fix is to lock into a single device once the MSS is locked locked down. 2015-08-27 09:06:46 -06:00
Gregory Nutt
3bcdb218ff Networking: Get rid of the tcp_mss macro. It is confusing and only obfuscates what is really going on 2015-08-27 08:39:17 -06:00
Gregory Nutt
89b5ef8d35 wdogs: Fix counting of free, pre-allocated wdog timers. The could could get decremented below zero in some situations 2015-08-21 11:30:22 -06:00
Pavel Pisa
12b1c04508 recvfrom(): Correct wait for new data when NET_UDP_READAHEAD is enabled. Fix size accounting when recvfrom_udpreadahead() sets state.rf_recvlen == -1. I have not checked if data are accumulated to the right position in the buffer however. 
Signed-off-by: Pavel Pisa <ppisa@pikron.com>
 2015-08-21 09:15:06 -06:00
Gregory Nutt
530d229361 net/udp: Add support for send() with connected UDP sockets 2015-08-11 19:17:55 -06:00
Max Neklyudov
7d04104485 Networking: Allow receipt of empty UDP packets. From Max Neklyudov 2015-08-11 08:34:16 -06:00
Gregory Nutt
fca919f3d2 Networking: Fix some compilation issues noted with network is build with CONFIG_BUILD_KERNEL 2015-07-05 11:18:56 -06:00
Gregory Nutt
342f5fe33d Fix references to the no-longer-existent misc/ directory in comments, README files, and documentation 2015-06-28 08:08:57 -06:00
Gregory Nutt
0ad53183e1 Networking: Fix a compile problem introduced in NuttX-7.6 when CONFIG_NET_SENDFILE=y 2015-06-24 14:52:57 -06:00
Gregory Nutt
ed9c45bcef Networking: Fix compilation error if IPv6 is enabled 2015-06-17 15:00:04 -06:00
Gregory Nutt
e22deff1ab TCP connect. Move the location where the socket is marked as connected in order to avoid a potential race condition 2015-05-31 12:24:24 -06:00
Gregory Nutt
b493dde4cf TCP networking: In the TCP connection operation, it was trying to setup the network monitor BEFORE the socket was successfully connected. This, of course, has ALWAYS failed because the socket is not yet connected and the TCP state is not yet correct for a connected socket. However, because of other changes net_startmonitor(0 no returns a failure condition that causes worse problems when trying to connect. The fix is to move the logic that starts the network monitor to AFTER the socket has been successfully connected. 2015-05-31 11:35:28 -06:00
Gregory Nutt
a47a0d237c Costmetic changes to networking logic 2015-05-31 10:29:53 -06:00
Gregory Nutt
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
Gregory Nutt
cc340aaa92 TCP networking: Since the network monitor now allocates a callback structure, it is critical to make sure that the networking monitor is stopped when the socket is closed or any other loss of connection. What was innocuous before would now be a memory leak 2015-05-30 11:49:55 -06:00
Gregory Nutt
8b029fbbee TCP networking: Hook the network monitor into the device event notification logic 2015-05-30 11:29:47 -06:00
Gregory Nutt
04a661a97c TCP networking: Add support for network driver events 2015-05-30 09:12:27 -06:00
Gregory Nutt
0bdf2d5360 UDP Networking: Misc fixes to get the last changes working + cleanup 2015-05-29 14:32:56 -06:00
Gregory Nutt
2102892e7b Fix missing file and some compilation errors from the last UDP committ 2015-05-29 10:45:41 -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
e28a8b1416 Raw sockets: Correct some compile issues; better modularized device-related logic 2015-05-29 08:47:21 -06:00
Gregory Nutt
988fbf0dcc Merge branch 'master' of ssh://git.code.sf.net/p/nuttx/git into multinic 
Conflicts:
	nuttx/ChangeLog
 2015-05-29 08:15:17 -06:00
Gregory Nutt
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
Gregory Nutt
b5c005d5a4 Merge remote-tracking branch 'origin/master' into multinic 
Conflicts:
	nuttx/ChangeLog
 2015-05-28 19:30:48 -06:00
Gregory Nutt
d319b7c6f0 Networking: PKT logic now uses the device event list 2015-05-28 12:40:05 -06:00
Gregory Nutt
01d176af76 net_startmonitor.c always returned zero. In the case where a socket has already been closed, it correctly handled the disconnetion event but still returned OK. Returning OK causes the callers of net_startmonitor to assume that the connection was okay, undoing the good things that net_startmonitor did and causing the socket to be marked as connected. This behavior was noted by Pelle Windestam. 2015-05-28 08:23:51 -06:00
Gregory Nutt
0e2b6929b4 Add function headers to prototypes in net/socket/socket.h 2015-05-28 07:26:03 -06:00
Gregory Nutt
b94321cfb4 Extend device specific callbacks to ICMPv6 and ARP. Fix some IPv6 compilation errors that have crept in 2015-05-27 11:39:44 -06:00
Gregory Nutt
00011d4766 Another newly missing semicolon after a debug assertion. Noted by Librae 2015-04-29 15:56:08 -06:00
Gregory Nutt
621eae86b1 Networking: If IPV6 is not enabled, an warning occurs for an unused variable, which is currently used inside the IPV6 block, but declared outside. From ObitalFox. 2015-04-27 11:28:28 -06:00
Gregory Nutt
3ba9dda227 socket: net_dupsd: Do not call sockfd_socket() twice. From Juha Niskanen 2015-03-12 08:11:08 -06:00
Gregory Nutt
db741dd695 Move some useful internal logic from recvfrom.c and udp_callback.c and put them in ip.h where they can be used more generally 2015-02-17 07:37:44 -06:00
Gregory Nutt
eb8f5e548f Purely cosmetic changes resulting from last review IPv6 UDP change 2015-02-16 15:23:02 -06:00
Gregory Nutt
3f5ff4b210 IPv4 mapping to IPv6 implementation. Just for UDP. From Macs Neklyudov 2015-02-16 14:33:58 -06:00
Gregory Nutt
d6704a1cd7 Suffer the consequences of moving struct timeval to its correct location 2015-02-15 15:18:35 -06:00
Gregory Nutt
005643de2c Networking: Fix a compilation error recently introduced into the raw packet logic 2015-02-11 09:30:30 -06:00
Gregory Nutt
b756df982d net/: Lots of build problems introduced into multiple NIC support. Many places where conditional logic based on CONFIG_NETDEV_MULTINIC is confused with CONFIG_NET_MULTILINK. Lots of code changed with IPv6 that was never compiled with MULTINIC enabled. Still some problem with parameter passing. 2015-02-09 18:15:34 -06:00
Gregory Nutt
a07a764d42 ICMPv6: Adds basic logic to support verification that we have the IPv6 address in the Neighbor Table. This feature is important because otherwise the first packet sent to a remote peer will fail (it will be replaced with a Neighbor Solicitation). 2015-02-02 13:44:31 -06:00
Gregory Nutt
0fc8d2fcc5 Unix domain: Add options to build in stream or datagram support separately 2015-01-31 07:58:51 -06:00
Gregory Nutt
6b8da59df6 Networking: Add fcntl support for Unix domain sockets and UDP sockets with read-ahead enabled 2015-01-30 14:41:09 -06:00