Gregory Nutt
3bf96c8e7e
net/arp: Improve arp_find() commit 9774d35010 to reduce the amount and frequency of data copies.
2018-08-25 07:12:21 -06:00
Gregory Nutt
324e1412ef
net/arp: Costmetic update to comments.
2018-08-24 17:57:15 -06:00
Gregory Nutt
9774d35010
net/arp: Make the function arp_find() thread-safe. It now returns a copy of the ARP table entry, rather than a potentially unstable reference to the ARP table entry.
2018-08-24 17:36:08 -06:00
Gregory Nutt
8c61c2f31b
Remove trailing spaces at the end of lines.
2018-08-13 07:39:38 -06:00
Gregory Nutt
22cd0d47fa
This commit attempts remove some long standard confusion in naming and some actual problems that result from the naming confusion. The basic problem is the standard MTU does not include the size of the Ethernet header. For clarity, I changed the naming of most things called MTU to PKTSIZE. For example, CONFIG_NET_ETH_MTU is now CONFIG_NET_ETH_PKTSIZE.
...
This makes the user interface a little hostile. People thing of an MTU of 1500 bytes, but the corresponding packet is really 1514 bytes (including the 14 byte Ethernet header). A more friendly solution would configure the MTU (as before), but then derive the packet buffer size by adding the MAC header length. Instead, we define the packet buffer size then derive the MTU.
The MTU is not common currency in networking. On the wire, the only real issue is the MSS which is derived from MTU by subtracting the IP header and TCP header sizes (for the case of TCP). Now it is derived for the PKTSIZE by subtracting the IP header, the TCP header, and the MAC header sizes. So we should be all good and without the recurring 14 byte error in MTU's and MSS's.
Squashed commit of the following:
Trivial update to fix some spacing issues.
net/: Rename several macros containing _MTU to _PKTSIZE.
net/: Rename CONFIG_NET_SLIP_MTU to CONFIG_NET_SLIP_PKTSIZE and similarly for CONFIG_NET_TUN_MTU. These are not the MTU which does not include the size of the link layer header. These are the full size of the packet buffer memory (minus any GUARD bytes).
net/: Rename CONFIG_NET_6LOWPAN_MTU to CONFIG_NET_6LOWPAN_PKTSIZE and similarly for CONFIG_NET_TUN_MTU. These are not the MTU which does not include the size of the link layer header. These are the full size of the packet buffer memory (minus any GUARD bytes).
net/: Rename CONFIG_NET_ETH_MTU to CONFIG_NET_ETH_PKTSIZE. This is not the MTU which does not include the size of the link layer header. This is the full size of the packet buffer memory (minus any GUARD bytes).
net/: Rename the file d_mtu in the network driver structure to d_pktsize. That value saved there is not the MTU. The packetsize is the memory large enough to hold the maximum packet PLUS the size of the link layer header. The MTU does not include the link layer header.
2018-07-04 14:10:40 -06:00
Gregory Nutt
aabdc00e8c
net/: Fix some incorrect comments that go back for years (but have also been cloned in newer files). The network was once interrupt driver, but now runs on the work queue with a semaphore to enforce mutual exclusion.
2018-06-23 14:09:06 -06:00
Gregory Nutt
b54ffe858a
Standardization of some function headers.
2018-03-13 09:52:27 -06:00
Dmitriy Linikov
9e8332e5c8
Merged in hardlulz/modem-3.0-nuttx/fixbuild-ipv4_forward (pull request #602 )
...
Fixed misprint in ipv4_forward.c
Approved-by: Gregory Nutt <gnutt@nuttx.org>
2018-02-20 18:23:48 +00:00
Gregory Nutt
7cf88d7dbd
Make sure that labeling is used consistently in all function headers.
2018-02-01 10:00:02 -06:00
Anthony Merlino
14fb37c995
Merged in antmerlino/nuttx/sixlowpan-mac802154 (pull request #526 )
...
ieee802154: Simplifies notify() and rxframe() calls to a single notify() call. dataind's and all other "notifs" are now "primitives" which aligns with standard terminology
* mac802154: Adds missing breaks from case statement
* sixlowpan: Fixes bad logic where ACK is not requested if address is not a broadcast
* ieee802154: Simplification of "notifs" and "datainds" to generic primitives passed via a single notify call to the layer above the MAC
* Directories.mk should reference CONFIG_WIRELESS instead of CONFIG_DRIVERS_WIRELESS
* xbee_netdev: Network must be locked when calling sixlowpan_input
* sixlowpan: Reassembly buffer can't be freed if provided by radio driver
* sixlowpan: Don't free IOB if there is an error processing it as the MAC will try to pass it along to another receiver
* ieee802154: Adds basic logging to ieee802154_primitive.c
* Minor fixes after rebase
* xbee: Adds AT query timeout to retry if XBee doesn't respond to request
* same70-xplained: Adds Xbee support. Makes mikroBus slot Kconfig 'choice'
* mac802154: Removes unused function declaration
* drivers/mrf24j40: Fixes compilation error using . operator rather than -> operator
* mac802154_device: Changes a few mac802154_primtive_free's to ieee802154_primitive_free() and changes notif to primitive in a couple places.
* mac802154: Adds promiscous mode logic to bypass parsing of incoming frames. MAC char device also checks for promiscous mode and passes whole frames including header and FCS to the application if promiscous mode is enabled.
* sixlowpan: Fixes logic to correctly check if packet is large enough to include header. This would cause packets to be considered too small when they are sufficiently sized.
* sixlowpan: Fixes forwarding logic to use forwarding device rather than received device to look up destination link layer address
* net/ipforward: Fixes typo that caused build error when IP forwarding was enabled with CONFIG_NET_ICMPv6_NEIGHBOR enabled as well.
* configs/same70-xplained: Simple spelling fix
Approved-by: Gregory Nutt <gnutt@nuttx.org>
2017-11-01 20:15:21 +00:00
Anthony Merlino
e9fa96258b
net/: Fix some build issues noted when both IPv4 and IPv6 are enabled.
2017-10-18 11:08:56 -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
88a87f8e3f
6LoWPAN: The original, Contiki-based design used only a single buffer for reassemblying larger packets. This could be a problem issue for hub configurations which really need the capability concurrently reassemble multiple incoming streams concurrently. These was also a design issue in that the reassembly buffer could be corrupted by outgoing packets. The design was extended to support multiple reassembly buffers, each associated with the reassembly tag and source address. This assures that there can be be no corruption of the reassembly once it has started.
2017-08-26 10:00:47 -06:00
Gregory Nutt
1334ab3d2a
IP forward: Correct some compile issues due to recent changes.
2017-08-20 11:46:43 -06:00
Gregory Nutt
6c4405561a
Fix a few compile errors and warnings found in build testing
2017-08-12 10:27:55 -06:00
Gregory Nutt
7c142be7ec
Fix small build problems found in build testing.
2017-08-08 18:37:42 -06:00
Gregory Nutt
efbb47999f
Networking: Fix netdev_dev_lladdrsize. In some configurations, it could return the wrong size for the address of a packet radio.
2017-08-08 16:27:23 -06:00
Gregory Nutt
aeb59383cf
Remove CONFIG_NET_MULTILINK. This increases code size by a little, but greatly reduces the complexity of the network code.
2017-08-08 15:26:09 -06:00
Gregory Nutt
bd7c84b23e
Remove CONFIG_NETDEV_MULTINIC. This increases code size by a little, but greatly reduces the complexity of the network code.
2017-08-08 14:24:12 -06:00
Gregory Nutt
7f53e08917
Squashed commit of the following:
...
commit 7029dffd02156bcbfa84262671c2ca766a117191
Author: Gregory Nutt <gnutt@nuttx.org>
Date: Sat Jul 29 12:02:13 2017 -0600
6LoWPAN PktRadio: Add missing MetaData-related prototypes and initialization logic. Perform a major renaming to make room in the 6LoWPAN name space for packet radios.
commit e2012f7c1df14155c0bfd45d7f1cb3f71b259f48
Author: Gregory Nutt <gnutt@nuttx.org>
Date: Sat Jul 29 10:16:23 2017 -0600
6LoWPAN PktRadio: Some initial changes to support raw packet radios without IEEE 802.15.4 with 6LoWPAN.
commit c6dbf9178539b7da75e492ffd1d1f93c9c326299
Merge: da782d6cdf 5889ce65f538f79543dc47791442a0b458934ac4f287cc25d6598386ef90c9ff8cbab92fc0fbcf7e6bd744c4b3f4e46b0da72319ea53a9d88dc9b2e5
2017-07-29 13:42:26 -06:00
Gregory Nutt
bcf6a465c7
ipforward.h: Add some forward references that are needed when CONFIG_NETDEV_MULTINIC is not enabled.
2017-07-10 12:12:17 -06:00
Gregory Nutt
36f4e08de0
Fix a spelling error: return vs retrun
2017-07-10 11:50:42 -06:00
Gregory Nutt
2d6868d9d4
IP forward: ipfwd_dropstats needs to include errno.h
2017-07-10 11:48:49 -06:00
Gregory Nutt
6df0ca5923
Fix some errors in ipforward.h when CONFIG_NET_STATISTICS is enabled, but CONFIG_NETDEV_MULTINIC is not
2017-07-10 11:37:06 -06:00
Gregory Nutt
994019d9be
Missing #endif
2017-07-10 11:15:17 -06:00
Gregory Nutt
81dcb98104
Fix a compile problem when IP forwarding of broadcast messages is enabled.
2017-07-09 11:53:28 -06:00
Gregory Nutt
975473fed8
ICMPv6: Add 6LoWPAN and IP forwarding support.
2017-07-09 11:35:26 -06:00
Gregory Nutt
bea75baaab
IP forwarding: Two bugfixes (1) IPFWD poll event must be unique and different from other device poll events otherwise, some other waiting task might get the poll, (2) Add logic necessary to forward 6LoWPAN packets.
2017-07-08 09:56:08 -06:00
Gregory Nutt
2d3e651cbb
IP forwarding: Remove some unnecessary data structure definitions.
2017-07-07 21:32:10 -06:00
Gregory Nutt
aa2e9c15a5
IP forwarding: Major rearchitecting of the outgoing portion of the IP forwarding logic necessary into to properly received device-related forwarding events.
2017-07-07 20:19:26 -06:00
Gregory Nutt
803235ad4b
IP forwaring: Rename some files to get closer to other naming conventions.
2017-07-07 18:45:58 -06:00
Gregory Nutt
7258f1cbfc
IP forwarding: Move to separate directory. A few fixes from early testing; In TUN driver, do all polling on worker thread. Otherwise, the stack gets very deep.
2017-07-07 18:33:06 -06:00
