Engine now allows registering service callbacks that are
called only once on a given timestamp.
This allows tickless services to be developed.
Signed-off-by: Seppo Takalo <seppo.takalo@nordicsemi.no>
Allow socket-loop to wake up immediately, if there are changes,
instead of waiting for zsock_poll() to timeout.
This change makes engine more reactive and removes
hard coded timeout from zsock_poll().
Signed-off-by: Seppo Takalo <seppo.takalo@nordicsemi.no>
When the target board does not have heap by default, allows
statically reserving the space for required socketpairs.
Signed-off-by: Seppo Takalo <seppo.takalo@nordicsemi.no>
Likely this trigger of the send_data_timer was an alternative for the
function that has been filled in by the ZWP transmission.
At the moment this timer has the potential to cause spurious
retransmissions that can degrade the throughput of the network stack.
Second to that it can accelerate the retransmission process, quickly
running to the number of retransmissions, causing a connection failure.
Signed-off-by: Sjors Hettinga <s.a.hettinga@gmail.com>
At any ack, the retransmission timer was cancelled. This means when an ACK
is only partially acknowledging pending data, followed by a packet loss,
the connection ended in a deadlock eventually timing out.
By checking if there is any pending data for transmission before canceling
the retransmission timer, there is no risk of this lock-up any more.
Signed-off-by: Sjors Hettinga <s.a.hettinga@gmail.com>
The IEEE 802.15.4 API and networking subsystem were using several
inconsistent timestamp resolutions and types. This change defines all
timestamps with nanosecond resolution and reduces the number of
available types to represent timestamps to two:
* `struct net_ptp_time` for PTP timestamps
* `net_time_t` for all other high resolution timestamps
All timestamps (including PTP timestamps) are now referred to a
"virtual" local network subsystem clock source based on the well-defined
types above. It is the responsibility of network subsystem L2/driver
implementations (notably Ethernet and IEEE 802.15.4 L2 stacks) to ensure
consistency of all timestamps and radio timer values exposed by the
driver API to such a network subsystem uptime reference clock
independent of internal implementation details.
The "virtual" network clock source may be implemented based on arbitrary
hardware peripherals (e.g. a coarse low power RTC counter during sleep
time plus a high resolution/high precision radio timer while receiving
or sending). Such implementation details must be hidden from API
clients, as if the driver used a single high resolution clock source
instead.
For IEEE 802.15.4, whenever timestamps refer to packet send or receive
times, they are measured when the end of the IEEE 802.15.4 SFD (message
timestamp point) is present at the local antenna (reference plane).
Due to its limited range of ~290 years, net_time_t timestamps (and
therefore net_pkt timestamps and times) must not be used to represent
absolute points in time referred to an external epoch independent of
system uptime (e.g. UTC, TAI, PTP, NTP, ...).
Signed-off-by: Florian Grandel <fgrandel@code-for-humans.de>
Add new net_if API functions which allow to loop over all valid
IPv4/IPv6 addresses assigned to the interface and execute a callback
function on them.
Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
When parsing user input for "wifi connect" and "wifi ap enable"
commands, the SSID and PSK lengths were not verified. It's better to
detect invalid connect/AP enable parameters early, so that help text can
be printed, instead of letting wifi_mgmt command to fail.
For WIFI_SECURITY_TYPE_SAE, follow the Linux convention of limiting the
size to 128 bytes.
Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
Some DHCPv4 servers do not respect BROADCAST flag set on DHCP Discover,
replying with unicast packet, making it impossible to obtain DHCP
address by Zephyr in such cases.
RFC1542 chapter 3.1.1 makes the following statement about the BROADCAST
flag:
This addition to the protocol is a workaround for old host
implementations. Such implementations SHOULD be modified so
that they may receive unicast BOOTREPLY messages, thus making
use of this workaround unnecessary. In general, the use of
this mechanism is discouraged.
Making it clear that being able to process unicast replies from the DHCP
server is not only an optional behavior, but a recommended solution.
Therefore, introduce a support for unicast DHCPv4 in Zephyr. To achieve
this, add additional filtering rule at the IPv4 level - in case DHCPv4
is enabled, there is an active query and the packet is destined for the
DHCPv4 module, let it through for the DHCPv4 module to process,
regardless of the destination IP address.
Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
The `attr_get` method is added to the ieee802154_radio to allow
reading of driver specific attributes of given device.
The enum `ieee802154_attr` provides common extension pattern
allowing to extend the attribute set.
Accessor function `ieee802154_radio_attr_get` is provided.
Signed-off-by: Andrzej Kuroś <andrzej.kuros@nordicsemi.no>
The initial goal was to remove sys_clock_timeout_end_calc(). However,
several related issues have been fixed as well.
First this:
int64_t print_interval = sys_clock_timeout_end_calc(K_SECONDS(1));
/* Print log every seconds */
int64_t print_info = print_interval - k_uptime_ticks();
if (print_info <= 0) {
[...]
}
The above condition will simply never be true.
Then there is lots of back-and-forth time conversions using expensive
base-10 divisions for each loop iterations which is likely to impact
performance.
Let's do the time conversion only once outside the loop and track
everything in terms of ticks within the loop. Also the various timeouts
are open-coded based on the absolute uptime tick so to sample it only
once per round. Using sys_timepoint_calc() and sys_timepoint_timeout()
would have introduced additional uptime tick sampling which implies the
overhead of a downstream lock each time for no gain. For those reasons,
open coding those timeouts bears more benefits in this particular case
compared to using the timepoint API.
Then this:
secs = k_ticks_to_ms_ceil32(loop_time) / 1000U;
usecs = k_ticks_to_us_ceil32(loop_time) - secs * USEC_PER_SEC;
The above should round down not up to work accurately. And the usecs
value will become garbage past 1.2 hour of runtime due to overflows.
And no need to clamp the wait period which is on the microsec scale
using the total duration argument being on the millisec scale. That's
yet more loop overhead that can be omitted. The actual duration is
recorded at the end anyway.
Signed-off-by: Nicolas Pitre <npitre@baylibre.com>
This is meant as a substitute for sys_clock_timeout_end_calc()
Current sys_clock_timeout_end_calc() usage opens up many bug
possibilities due to the actual timeout evaluation's open-coded nature.
Issue ##50611 is one example.
- Some users store the returned value in a signed variable, others in
an unsigned one, making the comparison with UINT64_MAX (corresponding
to K_FOREVER) wrong in the signed case.
- Some users compute the difference and store that in a signed variable
to compare against 0 which still doesn't work with K_FOREVER. And when
this difference is used as a timeout argument then the K_FOREVER
nature of the timeout is lost.
- Some users complexify their code by special-casing K_NO_WAIT and
K_FOREVER inline which is bad for both code readability and binary
size.
Let's introduce a better abstraction to deal with absolute timepoints
with an opaque type to be used with a well-defined API.
The word "timeout" was avoided in the naming on purpose as the timeout
namespace is quite crowded already and it is preferable to make a
distinction between relative time periods (timeouts) and absolute time
values (timepoints).
A few stacks are also adjusted as they were too tight on X86.
Signed-off-by: Nicolas Pitre <npitre@baylibre.com>
Associate command handler did not validate the provided address length.
In result, if provided address string was longer than the expected
extended address size, strncpy() would not NULL terminate the buffer,
which could lead to unexpected behavior in parse_extended_address(), as
it expects NULL terminated string.
Fix this by validating the length of the provided address string before
parsing.
Additionally, make parse_extended_address() return the parsing result,
so that it can be detected when provided extended address has incorrect
format.
Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
Linuxptp report UTC offset is 9472 seconds, is a byte order issue,
The right value is 37. Also fixed offset_scaled_log_var byte order.
Signed-off-by: Chen Caidy <chen@caidy.cc>
According to IEEE802.1AS Table 11-6 and 10.6.2.2.9,
802.1AS using peer-to-peer delay mechanism, two-step clock,
Grand master clock should keep this correction_field as zero.
Signed-off-by: Chen Caidy <chen@caidy.cc>
According to IEEE802.1AS 11.4.4.2.1, we need fill
preciseOriginTimestamp as syncEventEgressTimestamp.
In this follow_up message, prec_orig_ts need to filled
from net_pkt_timestamp(sync) for best accuracy. state machine
is software trigger with insufficient precision.
After this change, a grand master endpoint sync accuracy
increase from 3.5ms to 580ns with mimxrt1050_evk board.
Signed-off-by: Chen Caidy <chen@caidy.cc>
Use the macro to print to handle for cases where shell context is NULL,
this is possible because in this net management event handler shell
context is not passed.
Signed-off-by: Chaitanya Tata <Chaitanya.Tata@nordicsemi.no>
Statically created threads with K_THREAD_DEFINE() are launched only
after the SYS_INIT phase. This does not play well with NET_CONFIG
library, which may block during SYS_INIT until network interface
is UP and RUNNING.
In order to be able to connect to L2 network and thus mark the
network interface as running and unblock NET_CONFIG, we need to be
able to run conn_mgr thread during SYS_INIT. This can be achieved,
by starting the thread dynamically during SYS_INIT phase, instead
of relying on static thread creation.
Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
net_if_lock() should be called only after iface pointer is verified not
to be NULL, otherwise we can end up dereferencing NULL pointer in
certain corner cases.
Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
The TLS credentials libraries are purely software constructs with no
external dependencies, run them immediately after the kernel setup to
allow other initialisation functions to add credentials without the
requirement to run in the back half of the `APPLICATION` priority.
Signed-off-by: Jordan Yates <jordan.yates@data61.csiro.au>
Check if a network interface is managed by a network manager before
falling back to offload API.
Signed-off-by: Chaitanya Tata <Chaitanya.Tata@nordicsemi.no>
This introduces support for Wi-Fi network managers in Zephyr. The
motivation is for the Wi-Fi management layer to work with both
Network managers and offloaded Wi-Fi drivers. The device driver
decides which one to use.
network manager : Apps -> Wi-Fi Mgmt -> Network Manager -> Wi-Fi
interface
offloaded : Apps -> Wi-Fi Mgmt -> Wi-Fi offloaded interface
Support for multiple network managers has been added, each device can
choose its own network manager and there can be mix and match:
wlan0 - Offloaded
wlan1 - Network manager 1
wlan2 - Network manager 2
Signed-off-by: Chaitanya Tata <Chaitanya.Tata@nordicsemi.no>
Decouple interface and Wi-Fi APIs, Wi-Fi APIs are common independent of
Wi-Fi offload or implemented natively (This is preparation for
introducing Native Wi-Fi).
Signed-off-by: Chaitanya Tata <Chaitanya.Tata@nordicsemi.no>
The management thread *barely* fits in 768 bytes of stack; when thread
local storage is in use and TLS variables are also allocated from the same
region, this stack can overflow.
Increase to 800 bytes to leave plenty of room for TLS variables.
Signed-off-by: Keith Packard <keithp@keithp.com>
Removes redundant ACK state from `struct ieee802154_context` and
simplifies the ACK procedure.
Signed-off-by: Florian Grandel <fgrandel@code-for-humans.de>
This change introduces test coverage for association request and
response. Based on this coverage, several closely related issues were
found in the association process which cannot be split into separate
changes without breaking the build.
Most notably did the associate and disassociate net_mgmt commands send
already encoded IEEE 802.15.4 MPDUs to L3 rather than L2. L3 treated
them as payload and made L2 wrap them with another LL header/footer
which produced invalid packets.
The tests also enforce better aligment of the association process with
the IEEE 802.15.4-2020 standard:
* Association requests now ask for ACK as required by the standard. The
fake driver was enhanced to produce ACK packages when requested.
* macPanId and macCoordinator* MAC PIB attributes are set in the right
order for improved filtering of association responses.
* The coordinator may decide not to assign a short address to the end
device even when associated. This is now supported.
* The coordinator may or may not use a short address. Coordinators
choosing not to support short addresses are now supported.
* Updating the association will now remove any previously added short
address from the hardware filter.
* The short address may no longer be changed by the user while
associated to a PAN. Only the coordinator is allowed to allocate short
addresses.
* Validation of outgoing and incoming association request/response
packets is improved.
All changes are documented by pointers into the spec.
Signed-off-by: Florian Grandel <fgrandel@code-for-humans.de>
Fixes an off-by-one bug in the parsing routine of the coordinator
address when associating via shell command.
Signed-off-by: Florian Grandel <fgrandel@code-for-humans.de>
Input validation of some of the IEEE 802.15.4 net_mgmt commands was
incomplete and/or inconsistent. This change introduces a consistent
approach to input validation that is easier to follow.
Signed-off-by: Florian Grandel <fgrandel@code-for-humans.de>
Calculates macResponseWaitTime and applies it to the association
process.
As the timing calculation re-uses symbol period calculations and other
PHY timing constants previously introduced, these are now shared as
utility functions.
Signed-off-by: Florian Grandel <fgrandel@code-for-humans.de>
The IEEE 802.15.4 stack defines radio API helpers that provide
simplified and encapsulated access to radio API features.
These helpers were missing the `_radio_` infix. This infix is introduced
to clearly distinguish between MAC and PHY concerns. While PHY features
may be shared between L2 implementations (including the functions
concerned here), this is not true for MAC features.
Signed-off-by: Florian Grandel <fgrandel@code-for-humans.de>
The IEEE 802.15.4-2020 standard introduces an association type field to
support fast association, see sections 6.4.3 and 7.5.2. We do not yet
implement fast association but we introduce the flag to make this
obvious.
Signed-off-by: Florian Grandel <fgrandel@code-for-humans.de>
Minor simplification in the definition of IEEE 802.15.4 Kconfig packet
fragmentation configuration.
Signed-off-by: Florian Grandel <fgrandel@code-for-humans.de>
The additional hooks provide infrastructure to construct
rules on another network stack levels. Main benefit of this
approach is packets are pre-parsed and e.g. IP filter is
easier to implement. These hooks are equivalent of prerouting
and local_in in linux's netfilter.
Signed-off-by: Marcin Gasiorek <marcin.gasiorek@nordicsemi.no>
parse_number() helper function accepts long * pointer or the output,
however in several places, an address of a variable of incompatible
type was passed to the function (for example an address of a bool
variable was cast to (long *) and provided to the function). This
could cause memory overwrites or other unexpected behaviour.
Fix this, by defining a helper variable of type long, and use it with
the parse_number() function. Only after successful parsing, the value is
then assigned to the proper destination.
Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
When PMAX value is changed, it should update all events.
I believe there is a bug that caused the code only to update
events that are ongoing (to be send).
Now if PMAX changes, next event timestamp is recalculated.
Fixes#59397
Signed-off-by: Seppo Takalo <seppo.takalo@nordicsemi.no>
This change replaces one letter variable names with considerable
variable spans by much more readable alternatives that ease code
maintenance and help human reviewers to catch semantic errors.
Signed-off-by: Florian Grandel <fgrandel@code-for-humans.de>
The f_ctx variable renamed in this change has a considerable variable
span. This makes the code hard to read as the variable name is neither
defined in the IEEE 802.15.4 standard nor can it be deduced from the
variable name.
Signed-off-by: Florian Grandel <fgrandel@code-for-humans.de>
The 'ar' abbreviation has a well defined meaning in IEEE 802.15.4 which
is NOT the meaning of the local "ar" variable being renamed in this
change (see the comparison to the actual MHR ar field in this change
set).
To avoid confusion, a non-abbreviated variable name is introduced
instead.
Signed-off-by: Florian Grandel <fgrandel@code-for-humans.de>
The 'af' abbreviation is nowhere standardized in IEEE 802.15.4 and makes
the source code unnecessarily hard to read. It is replaced by a readable
long name.
Signed-off-by: Florian Grandel <fgrandel@code-for-humans.de>
Several distinct naming conventions existed within the IEEE 802.15.4
stack wrt header length. This change converges to a single naming
convention, the one that is less ambiguous and already most used.
The change also makes the distinction between L2 (link layer/LL) header
length and 6LoWPAN fragmentation header length to avoid confusion.
Signed-off-by: Florian Grandel <fgrandel@code-for-humans.de>
This change is in preparation for the newer frame version's more
complex compression algorithm that may compress both, the source
and the destination PAN independently.
Signed-off-by: Florian Grandel <fgrandel@code-for-humans.de>
This change renames buf to pkt_buf in one very specific instance to
distinguish the packet buffer from the frame buffer which is kept in the
same local scope. In all other instances the meaning of "buf" should be
obvious from context, not so here, though
Signed-off-by: Florian Grandel <fgrandel@code-for-humans.de>
To further reduce the need for networking boilerplate in applications,
provide bulk versions of net_if_up, net_if_down, conn_mgr_if_connect,
and conn_mgr_if_disconnect that affect all available / eligible ifaces
at once.
Since it is not intuitive whether these functions should affect ifaces
which conn_mgr is ignoring, these functions take an argument that allows
this to be specified by the application.
Signed-off-by: Georges Oates_Larsen <georges.larsen@nordicsemi.no>
To reduce the amount of boiler-plate needed in applications, this commit
grants conn_mgr the ability to automatically take ifaces that have given
up on connecting into the admin-down state.
Tests adjusted as appropriate.
This behavior can be disabled globally by disabling
NET_CONNECTION_MANAGER_AUTO_IF_DOWN, or disabled per-iface using the
CONN_MGR_IF_NO_AUTO_DOWN flag.
Signed-off-by: Georges Oates_Larsen <georges.larsen@nordicsemi.no>
