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22 Commits

Author SHA1 Message Date
Gregory Nutt
75cc19ebb4 net/tcp: Fix a deadlock condition that can occur when (1) all network logic runs on a single work queue, (1) TCP write buffering is enabled, and (2) we run out of IOBs. In this case, the TCP write buffering logic was blocking on iob_alloc() with the network locked. Since the network was locked, the device driver polls that would provide take the write buffer data and release the IOBs could not execute. This fixes the problem by unlocking the network lock while waiting for the IOBs. 2018-07-06 19:49:05 -06:00
Gregory Nutt
b54ffe858a Standardization of some function headers. 2018-03-13 09:52:27 -06:00
Gregory Nutt
7cf88d7dbd Make sure that labeling is used consistently in all function headers. 2018-02-01 10:00:02 -06:00
Gregory Nutt
cccc86da09 This change adds support for semi-standard IPPROTO_ICMP AF_INET datagram sockets. This replaces the old ad hoc, nonstandard way of implementing ping with a more standard, socket interface. 
Squashed commit of the following:

    net/icmp:  Finishes off icmp_recvfrom().
    net/icmp:  Add readahead support for IPPROTO_ICMP sockets.
    net/icmp:  Add poll() support for IPPROTO_ICMP sockets.
    net/icmp:  Add a connection structure for IPPROTO_ICMP sockets.
    net/icmp:  Implements sendto for the IPPROTO_ICMP socket.
    net/icmp:  Move icmp_sendto() and icmp_recvfrom() to separate files.  They are likely to be complex (when they are implemented).
    net/icmp:  Hook IPPROTO_ICMP sockets into network.  Fix some naming collisions.  Still missing basic ICMP send/receive logic.
    configs: apps/system/ping current need poll() enabled.
    configs: All defconfig files that use to enable low-level support must now enabled CONFIG_SYSTEM_PING.
    net/icmp:  Adds basic build framework to support IPPROTO_ICMP sockets.
 2017-10-23 08:45:12 -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
392c90b020 6loWPAN: Fix last checksum issues. Contiki 6loWPAN port is now complete (but completely untested) 2017-04-02 14:30:01 -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
b0ea870bcc Remove some empty code section comments 2016-02-25 18:34:36 -06:00
Gregory Nutt
1608b7c33f Some networking logic was used helpers from apps/netutils. Not good. Quick fix is to duplicate logic 2016-01-09 15:56:08 -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
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
3e6705b526 IPv6: Separate function that converts prefix lengths to a netmask 2015-02-06 08:11:09 -06:00
Gregory Nutt
f4ce875711 Networking: Fix issues with UDP packet length and checksum calculations when IPv6 is selected 2015-01-23 09:33:18 -06:00
Gregory Nutt
f7663ef0ab Networking: Final detangle off IPv4 and IPv6 TCP/UDP send logic. The Networking subsystem now compiles with IPv6 enabled 2015-01-18 08:56:05 -06:00
Gregory Nutt
a49f0231d2 Networking: A few more IPv6-related fixes 2015-01-14 18:34:28 -06:00
Gregory Nutt
caba61999a Remove CONFIG_DISABLE_CLOCK 2014-08-07 12:35:24 -06:00
Gregory Nutt
811668cf15 NET: Move most of the contents of include/nuttx/net/igmp.h moved to net/igmp/igmp.h 2014-07-05 15:15:40 -06:00
Gregory Nutt
a6b39d1879 NET: in-progress change... don't use 2014-07-04 16:38:51 -06:00
Gregory Nutt
76fa58ee00 Move all socket-related files from net/ to net/socket. Move net/net.h to net/socket/socket.h 2014-06-28 17:25:18 -06:00
Gregory Nutt
50b749a636 Clean-up naming associated with network checksums 2014-06-27 17:51:32 -06:00
Gregory Nutt
d30217eb63 Move net/uip/uip_checksum.c to net/utils/net_chksum.c; fix missing Make.defs include in net/Makefile 2014-06-27 15:42:21 -06:00
Gregory Nutt
64ba574ecc Move files to net/utils; make appropriate name changes, most for uip_lock to net_lock 2014-06-26 14:23:21 -06:00