The POSIX_MAX_FDS option does not correspond to any standard
POSIX option. It was used to define the size of the file
descriptor table, which is by no means exclusively used by
POSIX (also net, fs, ...).
POSIX_MAX_FDS is being deprecated in order to ensure that
Zephyr's POSIX Kconfig variables correspond to those defined in
the specification, as of IEEE 1003.1-2017. Namely,
POSIX_OPEN_MAX. CONFIG_POSIX_MAX_OPEN_FILES is being deprecated
for the same reason.
To mitigate any possible layering violations, that option is
not user selectable. It tracks the newly added
CONFIG_ZVFS_OPEN_MAX option, which is native to Zephyr.
With this deprecation, we introduce the following Kconfig
options that map directly to standard POSIX Option Groups by
simply removing "CONFIG_":
* CONFIG_POSIX_DEVICE_IO
Similarly, with this deprecation, we introduce the following
Kconfig options that map directly to standard POSIX Options by
simply removing "CONFIG":
* CONFIG_POSIX_OPEN_MAX
In order to maintain parity with the current feature set, we
introduce the following Kconfig options.
* CONFIG_POSIX_DEVICE_IO_ALIAS_CLOSE
* CONFIG_POSIX_DEVICE_IO_ALIAS_OPEN
* CONFIG_POSIX_DEVICE_IO_ALIAS_READ
* CONFIG_POSIX_DEVICE_IO_ALIAS_WRITE
Gate open(), close(), read(), and write() via the
CONFIG_POSIX_DEVICE_IO Kconfig option and move
implementations into device_io.c, to be conformant with the
spec.
Lastly, stage function names for upcoming ZVFS work, to be
completed as part of the LTSv3 Roadmap (e.g. zvfs_open(), ..).
Signed-off-by: Chris Friedt <cfriedt@tenstorrent.com>
Instead of using net_context API directly, the DNS resolver is
changed to use the socket service API. This allows DNS access
for offloaded sockets and can lower overall memory consumption.
Signed-off-by: Jukka Rissanen <jukka.rissanen@nordicsemi.no>
Changing remaining users of fcntl.h to use the include from our own
POSIX file so that the values in there are consistent in all parts
of the sources.
Signed-off-by: Jukka Rissanen <jukka.rissanen@nordicsemi.no>
The setting is deprecated so change the code to either use the
native zsock_* API or enable POSIX_API to use the BSD socket API.
Signed-off-by: Jukka Rissanen <jukka.rissanen@nordicsemi.no>
Verify that TCP keep alive options can be set properly and that TCP
connections time out correctly when keep-alive probes fail to get
replies.
Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
Since the TCP context (and thus net_context) is not dereferenced
directly from the test thread anymore, add a small delay so that TCP
work queue have a chance to run, before checking net_context count or
reusing the port on new allocation.
Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
This checks that if connect() timeouts, we check TCP pointer
properly in select() and poll() in order to catch the situation.
Signed-off-by: Jukka Rissanen <jukka.rissanen@nordicsemi.no>
This commit adds unit tests for the SO_REUSEADDR socket option to test
the different possible scenarios for the option to work correctly.
There is also a fix for the TCP testsuite to make a now failing test
pass again due to a TIME_WAIT socket.
Signed-off-by: Tobias Frauenschläger <t.frauenschlaeger@me.com>
Add an `after()` function that is executed after each test in
the testsuite.
Previously, even if one one test failed, it would calls almost
all subsequent tests to fail. This way, other tests can still
succeed.
Signed-off-by: Christopher Friedt <cfriedt@meta.com>
The FIONREAD ioctl (or rather ZFD_IOCTL_FIONREAD) returns the
number of bytes available on the socket that can be read
immediately.
Test that the ioctl behaves according to the expectation.
Signed-off-by: Christopher Friedt <cfriedt@meta.com>
To avoid a TCP connection from collapsing a link, implement a collision
avoidance algorithm. Initially TCP new Reno is implemented for its
simplicity.
Signed-off-by: Sjors Hettinga <s.a.hettinga@gmail.com>
Add test that verifies that accept() call is interrupted correctly when
the socket is closed from another thread.
Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
Add test that verifies that recv() call is interrupted correctly when
the socket is closed from another thread.
Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
Add new test cases for SO_RCVBUF/SO_SNDBUF which verify that setting
those options actually affects the RX/TX window sizes at the TCP level.
Existing tests only verified whether the options can be set/read
correctly.
Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
As the TCP test suite is intended to run over loopback interface, use
loopback addresses and skip configuration of other addresses.
Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
When the NO_DELAY option is enabled, the retransmitted packets
will likely be differently broken down from the packets transmitted
initially. This provides a nice stress test for the out or order
reception logic.
Signed-off-by: Sjors Hettinga <s.a.hettinga@gmail.com>
Loosen some timing constraints in order to hack arond spurious
failures in upstream Zephyr's CI while working on an unrelated task.
Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
Add a bunch of missing "zephyr/" prefixes to #include statements in
various test and test framework files.
Signed-off-by: Fabio Baltieri <fabiobaltieri@google.com>
It can happen that two similar stacks enter a retransmission cycle
due to a packet collision. If the transmission timeout is the same
both stacks will retry at the same moment resulting in another
collision.
By introducing a randomized retry timeout, the chance of
a second collision is reduced and it reduces furter the more
retransmissions occur.
Signed-off-by: Sjors Hettinga <s.a.hettinga@gmail.com>
Apply an exponentially increasing wait time between tcp retries. This
is a good balance between reacting fast to single lost packets and reduce
the network load when an outage takes a little longer. It also allows the
connection to survive a longer interruption with less retransmissions.
Update the test to accommodate for the increased socket closure timeout
Signed-off-by: Sjors Hettinga <s.a.hettinga@gmail.com>
Previously the test waited for the worst case time till all sockets
where closed, this causes the test to wait for a long unnecessary time.
Secondly it does not ensure the sockets are actually closed before
starting the next tests.
For tests that are not conducted in user mode, wait until all the contexts
are close for a maximum time. If the contexts are not closed in time raise
an explicit assertion.
Signed-off-by: Sjors Hettinga <s.a.hettinga@gmail.com>
A reproducible case to the behavior when during a connection
the link gets broken and all data is lost, the TCP connection
should properly terminate.
Signed-off-by: Sjors Hettinga <s.a.hettinga@gmail.com>
When there is no response from the server, a client side close
is obstructed, it should terminate and clean the context. This
tests breaks the connection after the accept and validates
this behavior.
Signed-off-by: Sjors Hettinga <s.a.hettinga@gmail.com>
In order to bring consistency in-tree, migrate all tests to the new
prefix <zephyr/...>. Note that the conversion has been scripted, refer
to #45388 for more details.
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
The close function on a TCP socket can return before the complete
socket has been closed, as there might be packets still in flight.
Add a wait at the end of the test so we are sure all sockets have
been closed before the next test starts.
Signed-off-by: Sjors Hettinga <s.a.hettinga@gmail.com>
The close function on a TCP socket can return before the complete
socket has been closed, as there might be packets still in flight.
Modify the test to wait briefly (less then the retransmit time), before
counting the number of still open net_contexts. This makes the test
outcome not dependent on the scheduling order of the different tasks.
Secondly the test actually checks the number of open contexts to be zero
so there is no need to wait for any open contexts to still close.
Signed-off-by: Sjors Hettinga <s.a.hettinga@gmail.com>
When there is no response from the server, a client side connect
should return a ETIMEOUT. This tests breaks the connection and validates
this behavior.
Signed-off-by: Sjors Hettinga <s.a.hettinga@gmail.com>
A reproducible case to see what happens when the TCP stack runs out
of buffers. It transfers a block, bigger then the number of buffers
available.
Also test by introducing packet loss in the loopback driver.
Signed-off-by: Sjors Hettinga <s.a.hettinga@gmail.com>
A common pattern here was to take the work item as the subfield of a
containing object. But the contained field is not a k_work, it's a
k_work_delayable.
Things were working only because the work field was first, so the
pointers had the same value. Do things right and fix things to
produce correct code if/when that field ever moves within delayable.
Signed-off-by: Yong Cong Sin <yongcong.sin@gmail.com>
Replace all existing deprecated API with the recommended alternative.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
../src/main.c:662:13: warning: cast from pointer to integer of different
size [-Wpointer-to-int-cast]
662 | int sock = (int)p1;
| ^
../src/main.c: In function 'spawn_child':
../src/main.c:671:4: warning: cast to pointer from integer of different
size [-Wint-to-pointer-cast]
671 | (void *)sock, NULL, NULL, 0, K_USER,
Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>
Adjust the test thread priority so that the test / IP stack
has a chance to run and the test passes.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
A socket which didn't undergo completed connect() or accept() calls
should react with ENOTCONN to recv() call. This test checks both
a freshly created socket ("client" one) and a socket in LISTEN
state ("server").
Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
