Commit Graph

94 Commits

Author SHA1 Message Date
Jukka Rissanen
a64f6995bb net: tools: Simple echo client that sends data to echo server
This client sends pre-defined UDP data to server, reads back
the reply and verifies that the data is the same.
This test application is only usable when running in Linux
host and it is not meant to be run inside Zephyr.

Change-Id: I6df83f3a5b1ab92c724b4d3c245738eb5c56a91f
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
2016-02-05 20:14:34 -05:00
Jukka Rissanen
3e4d890d72 net: slip: Add slip driver for testing purposes
This slip driver is needed for sending packets outside of qemu.

Change-Id: Ifc37181094ddebce08d97ae889f3a58c03d01ae1
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
2016-02-05 20:14:34 -05:00
Jukka Rissanen
6421d6eba8 net: The UDP remote address was incorrectly set
We need to use correct IPv6 address when registering UDP
socket.

Change-Id: I38f55bc16f72a71cb8cd58d20b3288be2f4cd475
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
2016-02-05 20:14:34 -05:00
Jukka Rissanen
54ab6fad20 net: Add net_reply() function
The net_reply() can be used if the application wants to reply
something to peer right after receiving the data. The function
will reverse the source and destination addresses and ports,
and set the uIP internal structures in such a way that the
reply is possible. Using this function saves the application
from allocating a separate net_buf for just sending simple
message back.

Change-Id: Ia960c83b77a8f300222159ee085fed99e2b007c2
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
2016-02-05 20:14:34 -05:00
Jukka Rissanen
cefc8ea55c net: tools: Removing tunslip6 binary
This binary file should not be here so removing it.

Change-Id: I00d4b2de353f1b7ed75e9480252ea5f3f4b0c3a4
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
2016-02-05 20:14:34 -05:00
Jukka Rissanen
98cd803dd9 net: uip: Disable duplicate IPv6 address detection
This will disable DAD for now in order to simplify the
IPv6 address assignment. This needs to be re-enabled
at some point.

Change-Id: I9d0ba58ef27df5fb8202863ccf6e33c5e29b6e14
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
2016-02-05 20:14:34 -05:00
Jukka Rissanen
10c0a16776 net: uip: Comment out neighbor discovery support when needed
If UIP_ND6_SEND_NA is not defined, then input_na() and input_ns()
functions are not needed and should be commented out.

Change-Id: I6849c7a7dba1a4cf60b8b26806df871b5f7801bf
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
2016-02-05 20:14:33 -05:00
Jukka Rissanen
d1f320c3ca net: uip: Allow UDP packet sender to know the sending status
Return the send status (sent ok or sending failed) to the caller.
Needed so that the caller can figure out whether it needs to
release the net_buf or not.

Change-Id: I7a0617cbb625d6ffcaf503dffc55d474b8f337a7
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
2016-02-05 20:14:33 -05:00
Jukka Rissanen
4a21035141 net: uip: Traverse only through valid UDP connections
The uip6.c:uip_process() was not checking the upper bound of
the UDP connection list when traversing the connection list.
Now the code checks the upper bound of the array (UIP_UDP_CONNS)
and will not go beyond the max number of items in the array.

Change-Id: I417ffd2bbb54922ae071f2f382f7e9470516ce55
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
2016-02-05 20:14:33 -05:00
Jukka Rissanen
682eee9306 net: uip: Set the proper link address length
We need to be able to configure link address length (6 or 8 bytes)
depending on what kind of transport we are using.

Change-Id: I9677e40a76f22e4656bcae7c9a667c0e76b0d996
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
2016-02-05 20:14:33 -05:00
Jukka Rissanen
62852f0ea7 net: Allow 6 byte link addresses
Need to define link address length for ethernet MAC addresses.
This is needed when connecting to host from qemu using slip
and when bluetooth connectivity will be used (in the future).

Change-Id: I3881e970cec52017fd4120a48ff7a99cc5559a0a
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
2016-02-05 20:14:33 -05:00
Anas Nashif
ea0d0b220c doxygen: change comment style to match javadoc
The change replaces multiple asterisks to ** at
the beginning of comments and adds a space before
the asterisks at the beginning of lines.

Change-Id: I7656bde3bf4d9a31e38941e43b580520432dabc1
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-02-05 20:14:32 -05:00
Jukka Rissanen
4eb70872fc net: Fix the loopback driver function parameters
Wrong number of parameters in net_driver.send registration.

Change-Id: I39eda44f0dbc9a5a1d980da3a625ef36946aef19
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
2016-02-05 20:14:31 -05:00
Ravi kumar Veeramally
89c83d0162 net: 6lowpan: Adapt compression functions to net_mbuf buffers
6lowpan HC06 and HC01 compression/uncompression functions are
adapted to net_mbuf buffers. HC06 compression and uncompression
works properly. HC01 adapted to net_mbuf but functionality is
failing due to inproper IPv6 link local addresses. buf pointers
from net_mbuf and couple of net_mbuf calls are removed (which
are not used at the moment and saves memory from net_mbuf).

Change-Id: I2711b71b1b8df2eaac67d69275baf4b62b03f9f6
Signed-off-by: Ravi kumar Veeramally <ravikumar.veeramally@linux.intel.com>
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
2016-02-05 20:14:30 -05:00
Jukka Rissanen
540980e243 net: ip: Makefile re-structuring
Set the compiled files unambiguously so that we are always able
to see what object files are compiled from networking sub-system.

Change-Id: Ia763778e954195502281d63438b7e756adadd8a5
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
2016-02-05 20:14:30 -05:00
Jukka Rissanen
e0509c5e6f net: rpl: Fix compile errors
This fixes RPL compile errors if CONFIG_NETWORKING_WITH_RPL is
enabled. The end result is not tested atm so RPL might not yet
work as expected.

Change-Id: I458c20f8f8c7c750cc17f24acf425f244399699d
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
2016-02-05 20:14:30 -05:00
Jukka Rissanen
19fe2ff93d net: uip: Avoid unused label compile warning
The process: label is only used if we are a router so add
ifdef guard.

Change-Id: Ib88d4e4d70b049541480a6e9dd9d68911543ff50
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
2016-02-05 20:14:30 -05:00
Jukka Rissanen
6869b1ace6 net: Make 6lowpan config depend on 802.15.4 config
As we do not have Bluetooth IPSP support yet, then assume
that user needs 802.15.4 if 6lowpan needs to be activated
in Kconfig. This needs tweaking later.

Change-Id: I02ab6ebea51fdcacf8d23960e4ca70e777c0da88
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
2016-02-05 20:14:30 -05:00
Jukka Rissanen
1af5132250 net: Do not compile slip if UART support is missing
Saves some memory if unnecessary slip functions are not
compiled into kernel.

Change-Id: If2316909b36b12cb4d163a5ca966e2e54f4e1159
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
2016-02-05 20:14:30 -05:00
Jukka Rissanen
015b52f55c net: 15.4: Make it possible to disable 802.15.4 networking
It is now possible to fully remove 802.15.4 radio support
from generated kernel.

Change-Id: Ib7cf8f4bb400ae7e298bdc62e3b50b787a2ef06d
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
2016-02-05 20:14:30 -05:00
Jukka Rissanen
cae2483f18 net: 15.4: Tweak the stack size of Rx and Tx fibers
One kb for Rx is enough, Tx needs bigger stack (4 kb) as it
needs to fragment bigger messages and needs more buffers.

Change-Id: Ib0a77dbd627bb3bd2806fa13a24a5869c64b31b2
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
2016-02-05 20:14:30 -05:00
Jukka Rissanen
0e8524ca2e net: Tweak the stack size of Rx and Tx fibers
One kb seems to be enough for the stack.

Change-Id: Ib1e3a7e97bf7d69ddd4b3028fe7dd6413a0098d4
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
2016-02-05 20:14:30 -05:00
Jukka Rissanen
904c5a0cf0 net: Tweak the number of network buffers to use
Use correct number of network buffers when sending and receiving
maximum size IPv6 frames (1280 bytes).

Change-Id: Iec4978fc97fb16f279a409f4f04d8a679d7cadc7
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
2016-02-05 20:14:30 -05:00
Jukka Rissanen
46b534009d net: conf: Set the max number of internal buffers
The queuebuf count defines how many fragments we are able to
receive. Value 13 means that we can receive full IPv6 data
(1280 bytes), we need also some extra buffers for temp use.

Change-Id: Ie16d37ae61e15ded4355b5f54136722fc6317022
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
2016-02-05 20:14:30 -05:00
Jukka Rissanen
442554615f net: 15.4: Add code to analyze stack usage
To make it easy to periodically verify that we have sane stack sizes
it's helpful to have some code to evaluate how much of the stacks are
used. There's already a CONFIG_INIT_STACKS option which pre-fills the
stacks with 0xaa bytes, so we make use of it and in case the option is
enabled run the extra code to evaluate how much of each stack was
used. The trigger for the evaluation is a disconnection event.

Copied from Bluetooth sub-system.

Change-Id: I5539156d98abd361254088f775765f7a72890ed5
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
2016-02-05 20:14:30 -05:00
Jukka Rissanen
e4505927a3 net: 15.4: Rename rx and tx fibers
Easier to debug the beast if the IP fibers are not called
the same as 15.4 fibers.

Change-Id: Iaa15b5e359c7dc2fd9af298445d6abe59a26ddd0
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
2016-02-05 20:14:30 -05:00
Jukka Rissanen
29d0e5b74a net: 6lowpan: Free net_buf if receiving wrong fragments
If we receive wrong fragments, then we start all over. In this
case we also need to release the net_buf that is used to collect
the earlier fragments.

Change-Id: I121d6a4031a375a0208441e110ebede58320c153
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
2016-02-05 20:14:30 -05:00
Jukka Rissanen
95fb81a3ae net: 6lowpan: Clear net_buf pointer after sending or dropping it
The net_buf is used to collect the received data. We clear the
buf pointer after all the data has been received or if we dropped
the packet. This way we know if the buf pointer was used or not.

Change-Id: I5d41b61fbc468262e8097719ddbc85ca90a73b98
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
2016-02-05 20:14:30 -05:00
Jukka Rissanen
63512ac2f3 net: udp: Do not mark the packet to be dropped if received ok
If the udp packet was successfully delivered to the application,
and if the application did not want to send anything back to
sender, then then uip_slen(buf) will be 0.
In this case we MUST NOT set uip_len(buf) to 0 as that would
cause the net_buf to be released by RX fiber. In this case it is
application responsibility to release the buffer.

Change-Id: I43cf9b147a45294288dc3c631908b034e1a4ab6a
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
2016-02-05 20:14:30 -05:00
Jukka Rissanen
3be36754db net: UDP socket registration must only done once
We must make sure that the UDP socket can be registered only once.

Change-Id: I90e0dac2b1b234fd7f899a0e41442c13f0c8bdd7
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
2016-02-05 20:14:30 -05:00
Ravi kumar Veeramally
56ccfb3785 net: 15.4: Add 802.15.4 driver and 802.15.4 loopback radio driver
Enable 802.15.4 driver that receives the IPv6 packet, does header
compression on it and writes it to the 15.4 stack Tx FIFO.
The 15.4 Tx fiber will pick up the header compressed IPv6
6LoWPAN packet and fragment it into suitable chunks ready
to be sent to the 15.4 hw driver. The 15.4 stack Rx fiber picks
15.4 frames from 15.4 Rx FIFO (which are fed by 15.4 driver)
and reassembles the all fragmented packets and uncompress the
header and writes to the IP Rx FIFO.

The 15.4 loopback radio driver receives the 15.4 frames and
put it back to 15.4 Rx Fifo.

Change-Id: I68d1c7ff6de0e8770616e574206c2091c69a28e6
Signed-off-by: Ravi kumar Veeramally <ravikumar.veeramally@linux.intel.com>
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
2016-02-05 20:14:30 -05:00
Patrik Flykt
231572a1c6 net: Set loopback address in the loopback driver
Set the loopback IPv6 address and an all-zero MAC address as the
loopback device really does not have a defined MAC address.

Clean up the code so that the loopback driver's IPv6 addresses are
not reused in other parts by mistake.

Change-Id: I07cc8bc5ad3a2ec5997bb313dd0ecaca4d9742f7
Signed-off-by: Patrik Flykt <patrik.flykt@linux.intel.com>
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
2016-02-05 20:14:30 -05:00
Jukka Rissanen
e4a6a07f40 net: rpl: Enable RPL Kconfig option
RPL (ripple) is IPv6 routing protocol for low power and lossy
networks. See RFC 6550 for details.

Change-Id: I60ca9e66be46741ebcc173ca3b581afd6876e9dc
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
2016-02-05 20:14:30 -05:00
Jukka Rissanen
0b54f984b8 net: apps: Simple listener application that just receives packets
Change-Id: I91457d364742928743be9040c0db64a1f052c093
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
2016-02-05 20:14:30 -05:00
Jukka Rissanen
43593bcbf4 net: Use simple UART driver for handling slip (serial line IP) traffic
This commit uses the simple UART driver to pass slip data between
qemu and host.

User needs to create a network device (tun) in host that is
connected to qemu via slip protocol. The tunslip6 process
acts as a gateway and passes packets between qemu and host.
See net/ip/contiki/tools/README file for details how to use and
configure the slip in host.

This is meant for testing the uIP stack.

Change-Id: I82bb87a76485a07ddf5de9ae91fe3d49a0e20658
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
2016-02-05 20:14:30 -05:00
Patrik Flykt
6d54615e7c net: Look up the local address if none is given
Look up the local IPv6 address if none is given by the application.
If no address is present, return a NULL context.

Change-Id: I7d4ef306944f65bc40799865dc6520b977636f6b
Signed-off-by: Patrik Flykt <patrik.flykt@linux.intel.com>
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
2016-02-05 20:14:30 -05:00
Jukka Rissanen
b2685703b9 net: context: Add our local address to address list
Add the user specified local address to the list of addresses
that the uIP stack knows.

Change-Id: I53dede27fa1717119a8bad6d7eee574ad3e924f1
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
2016-02-05 20:14:30 -05:00
Jukka Rissanen
e71e01a588 net: uip: Debug print the added IPv6 address
Change-Id: Ib20723c1d85558cedb54f67b9159253b9e6d7911
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
2016-02-05 20:14:30 -05:00
Jukka Rissanen
ad409a8964 net: init: Allow the network stack to be initialized only once
Change-Id: I06745962523b3774e0f5b830ec65a996d38ec9e6
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
2016-02-05 20:14:29 -05:00
Jukka Rissanen
6fe17bb7a5 net: Check error when pushing packet into stack
Make tcpip_input() to return 0 if there is an error when
processing the packet. Value != 0 indicates a successfull
packet processing and in this case the application will
free the packet.

Change-Id: I4aaeb5f0039cfbe25f7238a144964e31a8204148
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
2016-02-05 20:14:29 -05:00
Patrik Flykt
fa87944a08 net: Check that net context is unset based on IP protocol
Rather than checking whether the remote port is zero, use the IP protocol
field. The remote port might be zero if all incoming connections will be
accepted.

Change-Id: Ia1f24ae94fab27c561267c7bbc0f709fe98ee7e8
Signed-off-by: Patrik Flykt <patrik.flykt@linux.intel.com>
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
2016-02-05 20:14:29 -05:00
Patrik Flykt
b993277436 net: Assign local UDP port number
Assign local UDP port number if not explicitely set by the caller. Use
the timer as a source of uniqueness as there is no random function
available.

If the local UDP port number has been set, verify that it is available
and not already assigned.

Change-Id: I18baac0cbec300cc2a5b7a62dff830d9fafcf2c9
Signed-off-by: Patrik Flykt <patrik.flykt@linux.intel.com>
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
2016-02-05 20:14:29 -05:00
Patrik Flykt
586f3adf6e net: Handle IPv6 packet reception
When read from the Rx FIFO, pass the network buffer to the uIP IPv6
stack using the tcpip_input() function. As the event is handled, not
all cases where the buffer is to be discarded can be detected.
Thus, if ICMPv6 errors will not be sent, indicate that the packet is
to be dropped by setting its length to zero.

Change-Id: I49f69011685e39759ba25ebb07670308382a5ca8
Signed-off-by: Patrik Flykt <patrik.flykt@linux.intel.com>
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
2016-02-05 20:14:29 -05:00
Jukka Rissanen
eec46f1a88 net: Add code to analyze stack usage
To make it easy to periodically verify that we have sane stack sizes
it's helpful to have some code to evaluate how much of the stacks are
used. There's already a CONFIG_INIT_STACKS option which pre-fills the
stacks with 0xaa bytes, so we make use of it and in case the option is
enabled run the extra code to evaluate how much of each stack was
used. The trigger for the evaluation is a disconnection event.

Copied from Bluetooth sub-system.

Change-Id: Ic04ff83f682dc9b57afb69e164b972ffd9b860ea
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
2016-02-05 20:14:29 -05:00
Jukka Rissanen
3ce38be09d net: Declare fiber stacks as __noinit
No need to waste CPU cycles initializing the stack variables.

Change-Id: I0c517125ef37f7d0de4fd0040c4b4700536cd7c7
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
2016-02-05 20:14:29 -05:00
Ravi kumar Veeramally
9431109cde net: Add separated compression and fragmentation files.
Change-Id: If639164d32dbebb0e23075b433739c56bf70163c
Signed-off-by: Ravi kumar Veeramally <ravikumar.veeramally@linux.intel.com>
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
2016-02-05 20:14:29 -05:00
Ravi kumar Veeramally
575c89eacb net: Update 802.15.4 stack with net_mbuf and split sicslowpan
Move packetbuf from net_buf to net_mbuf, update 802.15.4 stack
with net_mbuf (which is smaller in size, and mostly wrapper for
packetbuf) and split sicslowpan(ipv6/sicslowpan.c|h) functionality
to compression and fragmentataion. This patch contains
null_compression and null_fragmentation which is exactly what
uip_driver.c|h does.

Change-Id: Ifee359e20aa57a50fb00c9ce049d9476b2ac67e3
Signed-off-by: Ravi kumar Veeramally <ravikumar.veeramally@linux.intel.com>
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
2016-02-05 20:14:29 -05:00
Patrik Flykt
e26167cd4a net: Add loopback driver
Change-Id: If8ee848ed8519719b4ec3ad2e74167e0558709ef
Signed-off-by: Patrik Flykt <patrik.flykt@linux.intel.com>
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
2016-02-05 20:14:29 -05:00
Patrik Flykt
78f518db52 net: Use network driver when sending IP packets
Set the uIP output function in order to call the send function in the
registered driver. Do driver initialization and checking cleanups.

Change-Id: I18c9b551320d15fa2619a077d1224f5e521c53ed
Signed-off-by: Patrik Flykt <patrik.flykt@linux.intel.com>
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
2016-02-05 20:14:29 -05:00
Patrik Flykt
29a61aff9c net: Add function to receive an IP packet from the driver
After an IP packet has been (reassembled and) received, the driver
submits the IP packet to the IP stack.

Change-Id: Icbd1e7740ce59db16bc1d61002420e86ab101d2d
Signed-off-by: Patrik Flykt <patrik.flykt@linux.intel.com>
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
2016-02-05 20:14:29 -05:00