The conn_raw_input() in connection.c will clone the incoming
packet so that it is possible to receive socket data in
multiple packet sockets. This is all fine except that if the
socket is never calling recv(), then the cloned net_pkt is never
processed and we will have a memory leak.
What this all means in practice, is that we should call recv()
for every packet socket in order to flush the socket for any
incoming data even if the socket is just sending data.
Fixes#34462
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Currently there is no way to distinguish between a caller
explicitly asking for a semaphore with a limit that
happens to be `UINT_MAX` and a semaphore that just
has a limit "as large as possible".
Add `K_SEM_MAX_LIMIT`, currently defined to `UINT_MAX`, and akin
to `K_FOREVER` versus just passing some very large wait time.
In addition, the `k_sem_*` APIs were type-confused, where
the internal data structure was `uint32_t`, but the APIs took
and returned `unsigned int`. This changes the underlying data
structure to also use `unsigned int`, as changing the APIs
would be a (potentially) breaking change.
These changes are backwards-compatible, but it is strongly suggested
to take a quick scan for `k_sem_init` and `K_SEM_DEFINE` calls with
`UINT_MAX` (or `UINT32_MAX`) and replace them with `K_SEM_MAX_LIMIT`
where appropriate.
Signed-off-by: James Harris <james.harris@intel.com>
If networking pre-emptive thread priorities are enabled,
then use the proper macro to enable them.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
If user has enabled SOCK_DGRAM support for AF_PACKET type, then
use that in the packet sample application instead of SOCK_RAW.
This simplifies the application as we do not need to handle
the Ethernet frame when sending or receiving the packets.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Create two threads, one for receiving packet socket data and
the other for sending raw Ethernet frames.
Add flood option where it is possible to stress test the IP
stack. Flooding is disabled by default.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
This provides a better error message when building with CMake and
forgetting ZEPHYR_BASE or not registering Zephyr in the CMake package
registry. See parent commit for more details (split from parent for
better readability).
Signed-off-by: Marc Herbert <marc.herbert@intel.com>
Using find_package to locate Zephyr.
Old behavior was to use $ENV{ZEPHYR_BASE} for inclusion of boiler plate
code.
Whenever an automatic run of CMake happend by the build system / IDE
then it was required that ZEPHYR_BASE was defined.
Using ZEPHYR_BASE only to locate the Zephyr package allows CMake to
cache the base variable and thus allowing subsequent invocation even
if ZEPHYR_BASE is not set in the environment.
It also removes the risk of strange build results if a user switchs
between different Zephyr based project folders and forgetting to reset
ZEPHYR_BASE before running ninja / make.
Signed-off-by: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no>
Update the files which contain no license information with the
'Apache-2.0' SPDX license identifier. Many source files in the tree are
missing licensing information, which makes it harder for compliance
tools to determine the correct license.
By default all files without license information are under the default
license of Zephyr, which is Apache version 2.
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Patch (3206568e43) changed network
interface numbering starts from 1. The index 0 is reserved.
So use api to get default interface index for packet socket sample.
Signed-off-by: Ravi kumar Veeramally <ravikumar.veeramally@linux.intel.com>
Port all users of 'set_conf_file' to use the built-in rules
instead. This follows the convention-over-configuration principle to
make the system as a whole simpler and more consistent.
Signed-off-by: Sebastian Bøe <sebastian.boe@nordicsemi.no>
Added more detailed information how to connect Zephyr instance
to host system like Linux desktop.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
IPv4 is not needed for packet socket sample. Previous commit
helps to remove dependencies.
Signed-off-by: Ravi kumar Veeramally <ravikumar.veeramally@linux.intel.com>
Sample application which opens a packet socket and receives
every packet on the wire and send some dummy packet over
socket. Simple demo of how to use packet sockets.
Signed-off-by: Ravi kumar Veeramally <ravikumar.veeramally@linux.intel.com>
