Use CONFIG_NET_TCP_INIT_RETRANSMISSION_TIMEOUT and
CONFIG_NET_TCP_RETRY_COUNT to control the total timeout at the TCP
level.
Signed-off-by: Jukka Rissanen <jukka.rissanen@nordicsemi.no>
Utilize a code spell-checking tool to scan for and correct spelling errors
in all files within the `subsys/net/ip` directory.
Signed-off-by: Pisit Sawangvonganan <pisit@ndrsolution.com>
When BUILD_WITH_TFM is enabled we can dispatch hash computation
to TFM. This allows to remove the built-in support of SHA256 from
the non-secure side (if it's not used for any other purpose, of course).
Signed-off-by: Valerio Setti <vsetti@baylibre.com>
Deprecate CONFIG_NET_TCP_ACK_TIMEOUT as it is redundant with the
combination of CONFIG_NET_TCP_INIT_RETRANSMISSION_TIMEOUT and
CONFIG_NET_TCP_RETRY_COUNT. The total retransmission timeout (i. e.
waiting for ACK) should depend on the individual retransmission timeout
and retry count, having separate config is simply ambiguous and
confusing for users.
Moreover, the config was currently only used during TCP handshake, and
for that purpose we could use the very same timeout that is used for the
FIN timeout. Therefore, repurpose the fin_timeout_ms to be a generic,
maximum timeout at the TCP stack.
Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
This commit introduces a new IPv6 API for positive reachability
confirmation, as specified in RFC 4861, Section 7.3.1. This feature aims
to enhance the effectiveness of the Neighbor Discovery mechanism, by
enabling upper-layer protocols to signal that the connection makes a
"forward progress".
The implementation within TCP serves as a reference. Compliance with
RFC 4861, especially Appendix E.1, was ensured by focusing on reliable
handshake and acknowledgment of new data transmissions.
Though initially integrated with TCP, the API is designed for broader
applicability. For example, it might be used by some UDP-based protocols
that can indicate two-way communication progress.
Signed-off-by: Łukasz Duda <lukasz.duda@nordicsemi.no>
The help text was incorrect, we return -ETIMEDOUT instead
of -ECONNRESET when retransmission timeout occurs.
Signed-off-by: Jukka Rissanen <jukka.rissanen@nordicsemi.no>
The number of Kconfig options for the TCP stack grew considerably,
therefore it makes sense to move them to a separate file not to bloat
the Kconfig file with generic networking options.
Take this opportunity to reorder TCP options, so that protocol
parameters (timings/buffer sizes) are not mixed up with optional
protocol features (fast retransmit/congestion avoidance etc.).
Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
