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31 Commits

Author SHA1 Message Date
Gregory Nutt
7deb24484c This comment converts the underlying IPC used by the UserFS from Unix domain local sockets to UDP LocalHost loopback sockets. The problem with the local sockets is that they do require operations on the top level psuedo-file system inode tree. That tree must be locked during certain traversals such as enumerate mountpoints or enumerating directory entries. 
This conversion is unfortunate in the sense that Unix local domain sockets are relatively lightweight.  LocalHost UDP sockets are much heavier weight since they rely on the full UDP stack.  If anyone is up for a complete redesign, then using some shared memory and a POSIX message queue would be lightweight again.

This commit also fixes several bugs that were not testable before the inode tree deadlock.  I cannot say that the logic is 100% stable but it does not have basic functionality.

Squashed commit of the following:

    fs/userfs:  Order locking so that access to the shared I/O buffer is also locked.
    fs/userfs:  Converts to use LocalHost UDP loopback for IPC.
 2017-11-05 12:25:58 -06:00
Gregory Nutt
70c59a9d91 This commit adds support for semi-standard IPPROTO_ICMP6 sockets. This is a replacement for the non-standard ICMPv6 ping support that violated the portable POSIX OS interface. 
Squashed commit of the following:

    net/icmpv6: IPPROT_ICMP6 socket logic now builds without error.
    net/icmpv6:  Add support for read-ahead and poll(). Initial commit is just cloned from ICMP with the appropriate name changes.
    configs/:  All defconfig filess that include CONFIG_NET_ICMPv6_SOCKET=y need to select CONFIG_SYSTEM_PING6=y and deselect CONFIG_DISABLE_POLL.
    Update NSH documention to show that ping6 is now a built in command.
    net/icmpv6:  Add icmpv6_sendto.c and icmpv6_recvfrom.c.  Initial versions are just clones from icmp/ with appropriate name changes.
    net/icmpv6:  Clone some ICMP socket logic as the beginning of support for ICMPv6 socket support.
    Rename CONFIG_NET_ICMPv6_PING to CONFIG_NET_ICMPv6_SOCKET.  Move prototype for icmpv6_ping from include/nuttx/net/icmpv6 to net/icmpv6/icmpv6.h
 2017-10-24 11:23:08 -06:00
Gregory Nutt
ae2a1d07b3 Networking: drivers/net/loopback.c: Eliminate a warning. net/netdev/netdev_ifconfig.c: Was not returning all of the address info. 2017-09-19 15:00:46 -06:00
Gregory Nutt
7bb8943a9c Fix IPv6 loopback driver that depended on the removed g_ipv6_allonesaddr. Noted by Masayuki Ishikawa 2017-08-09 06:59:55 -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
86239d4a73 Experimental change to STM32 Ethernet driver a success. Porting change to all other Ethernet drivers. 2017-03-03 14:45:09 -06:00
Gregory Nutt
8ee2e8d8b0 Most Ethernet drviers: Check if the poll timer is running before restarting it at the end of each TX. 2017-02-24 15:58:17 -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
96be43b270 drivers/net/: Adapt all Ethernet drivers to work as though CONFIG_NET_MULTIBUFFER were set. Remove all references to CONFIG_NET_MULTIBUFFER 2016-11-29 16:44:23 -06:00
Gregory Nutt
936b55f608 drivers/net: Add option to use low-priority work queue to all drivers in drivers/net. Not yet added to all architecture-specific network drivers. 2016-11-18 09:22:49 -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
efb02f2ef1 drivers/: Change some nerr() ERRORS to nwarn() WARNINGS. Anomolous network evernts are not errors. 2016-06-12 08:31:22 -06:00
Gregory Nutt
a1469a3e95 Add CONFIG_DEBUG_ERROR. Change names of *dbg() * *err() 2016-06-11 15:50:49 -06:00
Gregory Nutt
fc3540cffe Replace all occurrences of vdbg with vinfo 2016-06-11 11:59:51 -06:00
Gregory Nutt
44353f320c Replace confusing references to uIP with just 'the network' 2016-05-30 09:37:34 -06:00
Gregory Nutt
dea24c503a Networking: Remove the HSEC argument from devif_timer. 2016-02-03 12:12:41 -06:00
Gregory Nutt
2a93c66948 include/nuttx/net/netdev.h and several Ethernet drivers in arch/: Most network drivers to not support statistics. Those that do only support them when DEBUG is enabled. Each driver collects an architecture specific set of statistics and there is no mechanism in place to view those statistics. Thus, the driver feature was mostly useless. This change standardizes the driver statistics and puts the definition in the common network device structure defined in netdev.h where they can be accessed by network applications. All Ethernet drivers that collect statistics have been adapted to use these common statistics. 2015-11-26 12:08:09 -06:00
Gregory Nutt
cf14f8d1b5 drivers/: Fixes to spacing and alignement 2015-10-10 10:41:00 -06:00
Gregory Nutt
0b12dbf95d Fix some spacing problems 2015-10-04 15:04:00 -06:00
Gregory Nutt
8811681d7f networking: Big performance improvement for local loopback driver 2015-08-27 11:05:53 -06:00
SaeHie Park
a268e0aeb9 Fix a typo from an earlier commit 2015-08-26 18:12:58 -06:00
Gregory Nutt
7a168a791f Networking: Fix loopback device MTU 2015-08-26 10:33:44 -06:00
Gregory Nutt
32de036490 Local loopback: Set the IFF_UP flags during initialization because the local loopback device is always up 2015-08-25 20:09:12 -06:00
Gregory Nutt
79aa3d40b0 Kconfig: CONFIG_NET_MULTILINK and CONFIG_NET_MULTINIC must be support if the loopback device and any real network device are selected 2015-08-25 06:51:15 -06:00
Gregory Nutt
a2c0068011 Fix some IPv6 loopback device problems 2015-08-24 17:27:38 -06:00
Gregory Nutt
3018dc31e5 Network local loopback: Another structural simplication 2015-08-24 16:08:17 -06:00
Gregory Nutt
eea69cf6e3 Networking: Local loopback, fix a error in last commit + fix a bad functional partitioning 2015-08-24 15:23:09 -06:00
Gregory Nutt
4d040d572a Networking: Eliminate recursion from the local loopback driver 2015-08-24 15:16:03 -06:00
Gregory Nutt
933d74e5c1 Networking: With these changes, I can ping the local loopback device from the simulator 2015-08-24 13:49:12 -06:00
Gregory Nutt
0b012c7978 Fix some initial loop back device compilation errors; mark configuration as EXPERIMENTAL 2015-08-24 11:29:54 -06:00
Gregory Nutt
ccb24e1766 drivers/net: Add a basic prototype for a local loopback device 2015-08-24 11:03:36 -06:00