TCP code needs to know whether the pkt is sent the first time
or is it a resent one. This information is used when deciding
if the pkt ref count needs to be increased or not. The packet
does not need to increase ref count when sent first time, as
the ref count is already 1 when the pkt is created. But for the
2nd time the packet is sent, we will need to increase the ref
count in order to avoid buffer leak.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
The current design of the network-specific stack dumping APIs
is fundamentally unsafe. You cannot properly dump stack data
without information which is only available in the thread object.
In addition, this infrastructure is unnecessary. There is already
a core shell command which dumps stack information for all
active threads.
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
This macro allows to easily initialize utf8 strings (struct mqtt_utf8)
from C literals, as it automatically calculates string length.
Signed-off-by: Marcin Niestroj <m.niestroj@grinn-global.com>
There are scenarios where there is a NAT firewall in between MQTT
client and server. In such case, the NAT TCP timeout may be shorter
than MQTT keepalive timeout and TCP timeout. The the MQTT ping
request message is dropped by the NAT firewall, so that it cannot be
received by the server, resulting in void MQTT ping response message.
There is no TCP FIN or RST at all. The application looks hang-up
until TCP timeout happens on the client side, which may take too
long.
Therefore, the event MQTT_EVT_PINGRESP is added to inform the
application that the route between client and server is still valid.
Signed-off-by: PK Chan <pak.kee.chan@nordicsemi.no>
Add the Energy Scan capability to the possible capabilities list.
Create new energy scan callback function type to make its usage
more readable.
Signed-off-by: Marek Porwisz <marek.porwisz@nordicsemi.no>
According to LWM2M specification, when Queue Mode is used, the LWM2M
client should keep the reciever on for specified time after sending A
CoAP message. This commit adds a new LWM2M event,
`LWM2M_RD_CLIENT_EVENT_QUEUE_MODE_RX_OFF`, to facilitate the process by
notifying the application when it's safe to turn the receiver off.
Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
We now negotiate DNS servers in the IPCP configuration. This has been
observed to speed up the connection setup. The received DNS servers
are used by the DNS resolver library, but we leave it optional since
the static server list might be preferable.
Increase MAX_IPCP_OPTIONS to 4 so that we can nack all RFC 1877
options.
Signed-off-by: Göran Weinholt <goran.weinholt@endian.se>
Instead of using a custom offloading interface, users can use
`NET_SOCKET_REGISTER` macro to register custom socket API provider. This
solution removes a limitation, that only one offloaded interface can be
registered and that it cannot be used together with native IP stack.
The only exception remainig are DNS releated operations -
`getaddrinfo`/`freeaddrinfo`, which, when offloaded, have to be
registered specifically.
Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
The hostname member of struct mqtt_sec_config is used as optval
argument to ztls_sesockopt_ctx().
optval is declared as const void* so no need to limit hostname
to not allow const variables
Signed-off-by: Kim Bøndergaard <kibo@prevas.dk>
The build infrastructure should not be adding the drivers subdirectory
to the include path. Fix the legacy uses that depended on that
addition.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
commit 971ae59913 ("net: pkt: Make sure iface is not null when
accessing L2") fixed net_if_l2 where iface was NULL, however if
iface->if_dev is NULL, the check breaks and returns an offset of
NULL (0x82 or so). This is incorrect.
Let's add a check for iface->if_dev as well.
Signed-off-by: Michael Scott <mike@foundries.io>
As mDNS requests set DNS id to 0, we cannot use it to match
the DNS response packet. In order to allow this functionality,
create a hash from query name and type, and use that together
with DNS id to match request and response.
Fixes#21914
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
`TLS_PEER_VERIFY` and `TLS_DTLS_ROLE` options accept specific values,
yet no symbols were defined for them. In result, magic numbers were used
in several places, making the code less readable.
Fix this issue, by adding the missing symbols to the `socket.h` header,
and using them in places where related socket options are set.
Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
Add function that returns remaining time until next keep alive message
shall be sent. Such function could be used for instance as a source
for `poll` timeout.
Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
Maintain a simple count of how many PINGREQ have been sent for the
current connection that have not had a corresponding PINGRESP. Nothing
is done with this information internal to the MQTT driver, but it is
exposed to the application layer to monitor as desired.
Signed-off-by: Justin Brzozoski <justin.brzozoski@signal-fire.com>
Both ETHERNET_HW_TX_CHKSUM_OFFLOAD and ETHERNET_HW_RX_CHKSUM_OFFLOAD
apply to all of IPv4, UDP, and TCP heafers (there's no checksum in
IPv6 header). Consequently, these options should be enabled only for
hardware which supports offloading for all of these options. (And
hardware which has fine-grained control over individual protocol
headers, should enable them all).
Based on the handling in the current source code and discussion
in #21269.
Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
IPv4 header options length will be stored in ipv4_opts_len
in net_pkt structure. Now IPv4 header length will be in
net_pkt ip_hdr_len + ipv4_opts_len. So modified relevant
places of ip header length calculation for IPv4.
Signed-off-by: Ravi kumar Veeramally <ravikumar.veeramally@linux.intel.com>
This adds net_bug_simple_init_with_data which can be used to initialize
a net_buf_simple pointer with an external data pointer.
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Add build time check that guarantees that iface_api struct is the
first entry inside L2 driver data. This makes sure we do not miss
a case when the ordering of the fields in the struct is changed.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
It is possible that the network interface is not set when we
check the interface in net_pkt.c:pkt_buffer_length(). For example
in icmpv6 unit test the interface is left as NULL as the test does
not care about what network interface is used. For real hw like
mimxrt1050_evk, which supports Ethernet, we need to add additional
checks for the interface being non-null.
Fixes#20088
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Handle this corner case with TCP connection closing:
1) Client A connects, it is accepted and can send data to us
2) Client B connects, the application needs to call accept()
before we will receive any data from client A to the application.
The app has not yet called accept() at this point (for
whatever reason).
3) Client B then disconnects and we receive FIN. The connection
cleanup is a bit tricky as the client is in half-connected state
meaning that the connection is in established state but the
accept_q in socket queue contains still data which needs to be
cleared.
4) Client A then disconnects, all data is sent etc
The above was not working correctly as the system did not handle the
step 3) properly. The client B was accepted in the application even
if the connection was closing.
After this commit, the commit called "net: tcp: Accept connections
only in LISTENING state" and related other commits are no longer
needed and are reverted.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Use the newest version of the OpenThread project, as updated in
https://github.com/zephyrproject-rtos/openthread/pull/2.
Introduce the following fixes along with the update (they're squashed to
retain bisectability of OT samples):
* Update configs and flags used
Some OT configs were renamed, some new were introduced that Zephyr port
needs to set.
* Add entropy platform driver
OpenThreads `random` platform subsystem was replaced with `entropy`
subsystem which is supposed to serve as an entropy source for the
generic OpenThread's random generator.
* Halt OT thread when OT command is processed
OpenThread can currently be processed from two threads - a
genuine OpenThread thread and shell thread, which processes CLI
commands. This could cause trouble, when context was switched
during OT command processing (i.e. switched to process an incomming OT
message, while still in unfinished command handler).
In result, it was not possible to turn the commissioner role on via
CLI, as the commissioner petition response was handled before the
Commissioner::Start function finished its execution (if the
petitioner is also the network leader, all messages are passed
internally within the stack).
Fix this by suspending the OT thread for the time of an OT command
processing.
Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
Applications should use setsockopt() to setup the SOCKS5 proxy,
so the old API file, which is using net_context directly, is
moved SOCKS5 directory.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
A socket-offloaded interface should bypass interface initialization in
the same way as net-offloaded interface does.
Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
Calculate how long on average net_pkt has spent on its way from
application to the network device driver. The data is calculated
for all network packets and not just for UDP or TCP ones like in
RX statistics.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Calculate how long on average net_pkt has spent on its way from
network device driver to the application. The data is only
calculated for UDP and TCP network packets.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Randomly generating ID the first time coap_next_id() is called is more
in accordance with CoAP recommendations (see
https://tools.ietf.org/html/draft-ietf-core-coap-18, section 4.4)
"It is strongly recommended that the initial value of the
variable (e.g., on startup) be randomized, in order to make successful
off-path attacks on the protocol less likely."
Doing this in a dedicated init function is the cleanest and most
idiomatic approach. This init function is not exposed publically which
means it will be called only once, by the network stack init procedure.
Signed-off-by: Benjamin Lindqvist <benjamin.lindqvist@endian.se>
Provides a way to clone a net_buf_simple without altering the state of
the original buffer. The primary usage scenario is for manipulating a
previously allocated PDU inside a buffer without altering the length and
offset of the buffer.
Signed-off-by: Trond Einar Snekvik <Trond.Einar.Snekvik@nordicsemi.no>
Do not try to re-use net_context.user_data field as in many places
(like in accept) it is expected to contain pointer to net_context.
Storing the socket flags will corrupt the value. To simplify and
make things less error prone, use socket specific field in net_context
to store the socket flags.
Fixes#19191
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Previously, they were tested only with CONFIG_NET_SOCKETS_POSIX_NAMES,
but should also work with POSIX subsys. Achieve this by including POSIX
headers in this case.
Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
The IPPROTO_RAW is used as a default for SOCK_RAW when protocol
is not set in socket() call.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Allow user to disable native IP stack and use offloaded IP
stack instead. It is also possible to enable both at the same
time if needed.
Fixes#18105
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
This commit adds an explicit inclusion of toolchain.h from ptp_time.h.
The endianness preprocessor definitions (__BYTE_ORDER__,
__ORDER_LITTLE_ENDIAN__, __ORDER_BIG_ENDIAN__) are used by ptp_time.h;
these being not defined can easily go unnoticed and cause unexpected
behaviours, as detailed in PR #18922.
toolchain.h ensures that these preprocessor definitions are defined and
*must* be included in a file that uses these definitions.
Signed-off-by: Stephanos Ioannidis <root@stephanos.io>
Add new RD Client API of lwm2m_rd_client_stop() for this
Fix issues of de-register and event reporting in RD Client
Signed-off-by: Jun Qing Zou <jun.qing.zou@nordicsemi.no>
Consistently place C++ use of extern "C" after all include directives,
within the negative branch of _ASMLANGUAGE if used.
The inclusion of the generated syscall files is placed outside the
extern "C" block as the generated file has its own extern "C" block.
Background from issue #17997:
Declarations that use C linkage should be placed within extern "C"
so the language linkage is correct when the header is included by
a C++ compiler.
Similarly #include directives should be outside the extern "C" to
ensure the language-specific default linkage is applied to any
declarations provided by the included header.
See: https://en.cppreference.com/w/cpp/language/language_linkage
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
The previous patch left some include directives hidden within the body
of the extern "C" block. Lift them out to the top of the file where
they're more visible.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
This commit implements net_pkt_shallow_clone. A shallow clone clones
the net_pkt but not the buffers. The buffers are only referenced and
therefor only freed when both copies of the net_pkt are freed.
Signed-off-by: Alexander Wachter <alexander.wachter@student.tugraz.at>
This commit is an implementation of 6LoCAN, a 6Lo adaption layer for
Controller Area Networks. 6LoCAN is not yet standardised.
Signed-off-by: Alexander Wachter <alexander.wachter@student.tugraz.at>
Rename the socket_can implementation from CANBUS to CANBUS_RAW.
This is a preperation for 6LoCAN which is a CANBUS L2 for IPv6.
Signed-off-by: Alexander Wachter <alexander.wachter@student.tugraz.at>
