It is possible that net_pkt will disappear while we are sending
it, so save link address if we need that information.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
The code was leaking memory in TX side when there was lot of
incoming packets. The reason was that the net_pkt_sent() flag
was manipulated in two threads which caused races. The solution
is to move the sent flag check only to tcp.c.
Fixes#23246
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>
An expired IPv6 router would cause an infinite loop where
iface_router_run_timer() repeatedly scheduled a work item. In some
conditions it would schedule with negative delay, in other conditions
the infinite loop wouldn't happen until a router was added again.
Get rid of the router from active_router_timers when it is removed.
Fixes#21339
Signed-off-by: Jonas Norling <jonas.norling@greeneggs.se>
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>
This function will be useful in shell when we want to monitor
the amount of bytes transferred and want to clear earlier
statistics.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
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>
Re-run with updated script to convert integer literal delay arguments
to k_thread_create and K_THREAD_DEFINE to use the standard timeout
macros.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
The semi-automated API changes weren't checkpatch aware. Fix up
whitespace warnings that snuck into the previous patches. Really this
should be squashed, but that's somewhat difficult given the structure
of the series.
Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
System call arguments, at the arch layer, are single words. So
passing wider values requires splitting them into two registers at
call time. This gets even more complicated for values (e.g
k_timeout_t) that may have different sizes depending on configuration.
This patch adds a feature to gen_syscalls.py to detect functions with
wide arguments and automatically generates code to split/unsplit them.
Unfortunately the current scheme of Z_SYSCALL_DECLARE_* macros won't
work with functions like this, because for N arguments (our current
maximum N is 10) there are 2^N possible configurations of argument
widths. So this generates the complete functions for each handler and
wrapper, effectively doing in python what was originally done in the
preprocessor.
Another complexity is that traditional the z_hdlr_*() function for a
system call has taken the raw list of word arguments, which does not
work when some of those arguments must be 64 bit types. So instead of
using a single Z_SYSCALL_HANDLER macro, this splits the job of
z_hdlr_*() into two steps: An automatically-generated unmarshalling
function, z_mrsh_*(), which then calls a user-supplied verification
function z_vrfy_*(). The verification function is typesafe, and is a
simple C function with exactly the same argument and return signature
as the syscall impl function. It is also not responsible for
validating the pointers to the extra parameter array or a wide return
value, that code gets automatically generated.
This commit includes new vrfy/msrh handling for all syscalls invoked
during CI runs. Future commits will port the less testable code.
Signed-off-by: Andy Ross <andrew.j.ross@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>
When using offloaded network, an L2 is never assigned to the net_if.
Only certain portions of the net_if code are referenced such as:
net_if_up()
net_if_down()
And these functions make use of several L2 references:
get_flags()
enable()
Let's add checks to make sure we don't deref a NULL when using these
functions.
Fixes the following exception on K64F and other HW which can make
use of offloaded network HW:
FATAL: ***** Reserved Exception ( -16) *****
FATAL: r0/a1: 0x00000010 r1/a2: 0x0000644f r2/a3: 0x00000000
FATAL: r3/a4: 0x00000000 r12/ip: 0x2000474c r14/lr: 0x0001475b
FATAL: xpsr: 0x00000000
FATAL: Faulting instruction address (r15/pc): 0x0001b1cd
FATAL: >>> ZEPHYR FATAL ERROR 0: CPU exception
FATAL: Current thread: 0x20004c4c (unknown)
Fixes: https://github.com/zephyrproject-rtos/zephyr/issues/18957
Signed-off-by: Michael Scott <mike@foundries.io>
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>
If the network interface is point-to-point one which does
not need IP address etc, then no need to start DAD etc for
those interfaces.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Removing an IPv4 router was missing, as well as finding the default
router for an IPv4 address.
Note howevere that IPv4 router features are not used anywhere yet. But
at least the API is there and is a 1:1 to IPv6, if that matters.
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
- router lifetime is always a u16_t so fixing
net_if_ipv6_router_update_lifetime() signature.
- Coalescing router timers into one: this reduces the net_if_router
structure by 22 bytes
- refactor IPv6 and IPv4 router code so it's handled in generic
functions, to avoid duplicating 90% of the code for each family. This
also fixes the lifetime support for IPv4 which was missing.
Note however that IPv4 routing support seems to be missing as none of
the relevant functions are used anywhere yet.
Fixes#8728
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
This reduces the size of struct net_if_ipv6 by 24 bytes by moving
the k_delayed_work attribute into net_if core code.
Then each net_if_ipv6 can be added to the timer handler via a slist.
This does not make much gain if the system has only 1 network interface
It starts to be interesting if it has 2+ network interfaces then.
Fixes#8728
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
This reduces the size of struct net_if_addr by 24 bytes by moving
the k_delayed_work attribute into net_if core code.
Then each net_if_addr can be added to the timer handler via a slist.
This does not make much gain if the system has only 1 unicast IPv6
address. It's a nice memory improvment once it has 2+ unicast IPv6
address. Note that having IPv4 enabled along with IPv6 will also see
memory improvements since both IPv6 and IPv4 use the same struct
net_if_addr.
Fixes#8728
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
Let's regroup all the IPv4 related function into one ifdef. There is no
need to implement a dummy function for each: if IPv4 is not enabled,
these functions are unused in the core.
Fixes#8728
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
Let's regroup all the IPv6 related function into one ifdef. There is no
need to implement a dummy function for each: if IPv6 is not enabled,
these functions are unused in the core.
Fixes#8728
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
Finalize the CONFIG_NET_CONTEXT_TIMESTAMP support that was started
earlier but never properly finished. We collect network statistics for
TX packet network stack throughput time from when the net_context_send
is called and when the net_pkt was sent out successfully by the network
device driver.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
If the net_mgmt event has some info, like IP address, that
could be sent, then send it the same time. This is very useful
for the receiver of the event in order to know that is happening
in the system.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Allow application to call net_if_ipv4_set_gw_by_index()
and set the gateway if enabled by configuration.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Allow application to call net_if_ipv4_set_netmask_by_index()
and set the netmask if enabled by configuration.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Make IPv4 and IPv6 address addition and removal possible from
userspace app. But allow this only if CONFIG_NET_IF_USERSPACE_ACCESS
By default these operations are not allowed from userspace app.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
It is possible that iface is NULL when selecting IPv4 destination
address for a sent packet.
Coverity-CID: 198877
Fixes#16570
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
The net_if_ipv4_select_src_addr() should return global address
in the interface if nothing else is being found.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Let's filter out on a state parameter.
There is no impact as this function is not used anywhere yet.
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
Calling functions like `net_if_start_dad`, `join_mcast_nodes` or
`net_if_start_rs` lead to L2 API function calls, which is not correct
for offloaded interfaces and leads to a crash. This is especially
problematic, as they are called in the default configuration.
Avoid calling these functions while an offloaded interface is brought up
by adding extra jump label.
Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
It is possible that the device driver API pointer is null.
For example if the device driver returns an error, the device
code will make the API pointer NULL so that the API would not
be used. This can cause errors in networking code where we
typically do not check the NULL value.
Fixes#15003
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
If the NET_IF_NO_AUTO_START network interface flag is set, then
do not take network interface up during the initialization of the
network interface. The network device driver can set the flag in its
network interface initialization function if needed.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Provide access functions for manipulating network interface flags.
There is no need for the caller of this API to know about the inner
details of the flags.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
If the TCP segment is not sent properly by L2, then do not mark
it "not sent" in net_if.c:net_if_tx(). That "not sent" marking
confused TCP ref counting in tcp.c:tcp_retry_expired() and caused
the packet to be freed too early which then caused free net_buf
access issue during packet resend. This free memory access was
seen with zperf sample application.
From TCP point of view, the packet can be considered sent when
it is given to L2. The TCP timer will resend the packet if needed.
Fixes#15050
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
This attribute, in case CONFIG_NET_STATISTICS is enabled, made sense
when L2's send() function did not return the length of the sent packet.
But now, it's a superflous optimization as is it used only to set the
stats on recv or send, where net_pkt_get_len() can be used directly.
This helps to save 2 bytes from struct net_pkt.
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
And also to the relevant callbacks.
That parameter is not used anywhere so it is useless.
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
Seems like a useless attribute. Since net_context is not being used by
the user directly (socket is the unique interface now) and since no core
parts uses the token parameter of net_context API: let's remove the
attribute.
This helps to save 4 bytes from struct net_pkt.
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
As the L2 layer might have modified the cursor, reset it here
before giving the packet to promiscuous mode API. This way
the application will get a fresh copy of the buffer.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
In order to follow the BSD socket numbering of the network
interfaces, start numbering from 1. The index 0 is reserved
to mean any interface in BSD socket code.
Fixes#13084
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Now that legacy net_pkt_clone function has been removed, the new
function can be renamed accordingly.
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
This commit fixes compilation warnings if user disables
CONFIG_NET_IPV4, CONFIG_NET_IPV6, CONFIG_NET_TCP and
CONFIG_NET_UDP.
E.g Samples like packet-socket doesn't need above configuration.
Signed-off-by: Ravi kumar Veeramally <ravikumar.veeramally@linux.intel.com>
This is basically a dummy layer that just passes data through.
It is needed so that we can create CANBUS type network interface
to the system.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
