Added additonal checks in net_ipv6_input to ensure that multicasts
are only passed to the upper layer if the originating interface
actually joined the destination multicast group.
Signed-off-by: Philip Serbin <philip.serbin@lemonbeat.com>
Now that TCP2 is the default stack, make the shell compatible
with both stacks.
Note: net_tcp_foreach is not implemented in TCP2, so related
code depends on TCP1.
Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Print role information next to port information. Also make
sure that port number is set correctly.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
net: route: Add prefix-based ipv6 multicast forwarding
This adds/reenables the feature of multicast routing/forwarding.
The forwarding decision is based on the added multicast routes
and the new network interface flag:
NET_IF_FORWARD_MULTICASTS.
Signed-off-by: Jan Georgi <jan.georgi@lemonbeat.com>
This patch implements optional authentication phase, which is done
between link establishment and network phases. It is part of LCP option
negotiation to decide whether authentication is needed and which
protocol will be used. For now we add only PAP support and try to
negotiate it when some other protocol (e.g. CHAP or EAP) is proposed
earlier. For simplicity reason we only add one way authentication
support, which means that we try to authenticate to the other peer, but
do not require authentication from it.
This is an important step to make PPP work with cellular network modems,
because most of them require to provide username and password within PPP
authentication phase. Those credentials are used by modem to login to
cellular network. In most cases however it is enough to provide dummy
values, because they are not verified. For this reason and simplicity of
this patch we hardcode PAP Peer-ID and Password now.
Signed-off-by: Marcin Niestroj <m.niestroj@grinn-global.com>
Instead of casting struct in6_addr, sin6_addr member is now used
directly, like in every other instance of calling net_ipv6_is_prefix().
Signed-off-by: Christian Taedcke <christian.taedcke@lemonbeat.com>
For platforms using non-native stacks, net_tcp_init() should be
compiled out, similar to how it is done in tcp_internal.h.
Fixes#27463
Signed-off-by: Vincent Wan <vwan@ti.com>
Enable the new TCP stack as a default one in order to get people
to use it before Zephyr 2.4 is released.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Allow user to enable CONFIG_NET_PKT_TXTIME and
CONFIG_NET_PKT_TXTIME_STATS at the same time. This will increase
memory consumption but as the CONFIG_NET_PKT_TXTIME_STATS is
only meant to be enabled for debugging purposes this overhead
can be accepted.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
In TCP, we increase the net_pkt refcount in order to resend
it later if we do not receive ACK in time. Because we are not
getting a new net_pkt, the TXTIME statistics would be calculated
incorrectly. So if we re-send, reset the net_pkt creation time.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Add extra net_pkt RX timing information to "net stats" command.
You neeed to enable CONFIG_NET_PKT_RXTIME_STATS and
CONFIG_NET_PKT_RXTIME_STATS_DETAIL config options.
The "net stats" command will print something like this:
Avg RX net_pkt (7) time 459 us [0->23->16->257->160=456 us]
The extra stats is the end of line inside brackets.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Add extra net_pkt TX timing information to "net stats" command.
You neeed to enable CONFIG_NET_PKT_TXTIME_STATS and
CONFIG_NET_PKT_TXTIME_STATS_DETAIL config options.
The "net stats" command will print something like this:
Avg TX net_pkt (5867) time 82 us [0->33->20->27=80 us]
The extra stats information is the end of line inside brackets.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Collect information how long net_pkt has travelled in IP stack
in certain points. See network documentation what these points
are and how to get information about the timings. This initial
commit adds support to TX timing collection.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Include directories for ${ARCH} is not specified correctly.
Several places in Zephyr, the include directories are specified as:
${ZEPHYR_BASE}/arch/${ARCH}/include
the correct line is:
${ARCH_DIR}/${ARCH}/include
to correctly support out of tree archs.
Signed-off-by: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no>
The original return type of tcp_data_get() was unsigned and the
return value <0 was not checked properly.
Fixes#25723
Coverity-CID: 210559
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Remove the static buffer for TCP options. Make sure that the
options were read properly to temp buffer.
Fixes: #25729
Coverity-CID: 210056
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Make sure that only those threads that have been granted access
to net_if objects, can call the functions that modify net_if data.
The CONFIG_NET_IF_USERSPACE_ACCESS config option is also removed
as it is no longer needed after this change.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Make net_if a kernel object with type K_OBJ_NET_IF so that we
can restrict access to it.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Bugfix: in tcp_conn_unref(), the conn was zeroed before removing it
from the connection list (tcp_conns).
Zeroing conn, results in zeroing its 'next' member,
which in effect removes all its following connections referred to
in tcp_conns linked list.
The solution is to move the memset() after sys_slist_find_and_remove().
Signed-off-by: David D <a8961713@gmail.com>
The network interface check was invalid when IPv6 Router
Solicitation message was timeout and interface was not found.
This is highly unlikely but needs to be checked properly.
Fixes#27145
Coverity-CID: 211511
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
The TCP2 stack does operations directly on the packet data which may
or may not be aligned. The unaligned access causes a fault on the
Cortex-M0+ so use the UNALIGNED_* macros instead.
Signed-off-by: Michael Hope <mlhx@google.com>
Use system provided Z_STRUCT_SECTION_FOREACH() and
Z_STRUCT_SECTION_ITERABLE() macros instead of manually coding
everything for network sections.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
In order to implement a blocking connect, add a semaphore
and block on it in net_tcp_connect().
The semaphore is released when ESTABLISHED state is reached.
In case tcp_conn_unref() is called while waiting on the semaphore,
defer the unreference, tcp_conn_unref() will be called from
net_tcp_connect().
Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
In order to improve readability, refactor and simplify
the control flow in net_tcp_connect().
Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
In order for events to be correctly interpreted in SYN_SENT,
check for SYN and ACK simultaneosly.
Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
net_tcp_put() can be called before ESTABLISHED state
is reached, send FIN only in ESTABLISHED state.
Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
Current implementation of net_ipv6_send_rs() uses
net_ipv6_addr_create_ll_allnodes_mcast() for creating RS packet.
As result we send RS packet to all-nodes destination [FF02::1],
but RFC4291 requires all-routers destination [FF02::2] for RS packets.
Signed-off-by: Eug Krashtan <eug.krashtan@gmail.com>
Unit tests were failing to build because random header was included by
kernel_includes.h. The problem is that rand32.h includes a generated
file that is either not generated or not included when building unit
tests. Also, it is better to limit the scope of this file to where it is
used.
Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>
In function z_vrfy_net_addr_pton(),
the final copy should be to 'dst' variable not to 'src'
Signed-off-by: Alexandre Bourdiol <alexandre.bourdiol@st.com>
Currently user needs to specify quite much additional options to enable
OpenThread support. He also needs to set ip address count,
heap size, etc depending on features enabled.
Nade changes to automatically select/set some of the options on
enabling OpenThread
Signed-off-by: Marek Porwisz <marek.porwisz@nordicsemi.no>
If we have multiple network interfaces and we are waiting incoming
network packets, make sure to honor the bind of the socket so that
correct socket will receive data in certain network interface.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
ppp does not populate the lladdr fields in the received packet.
To enable routing for packets received on the ppp interface, the check
of the link layer addresses in the packet must be skipped.
Signed-off-by: Christian Taedcke <christian.taedcke@lemonbeat.com>
A net context in LISTENING mode waits for incoming connections, once
a new connection is established a new net context is spawned which
is responsible for handling the new connection.
Therefore when closing a LISTENING context it is not useful to send FIN
as it is never connected. Actually closing the connection would be done
by calling close on the spawned net context which is returned by the
accept call.
Signed-off-by: Léonard Bise <leonard.bise@gmail.com>
Currently there is chosen the link local address as a source address
for each multicast destination address. It is a bug for OpenThread
network where the mesh-local EID addres should be picked in this case.
This commit fixes it by distinquish the mesh local multicast among any
others.
Signed-off-by: Lukasz Maciejonczyk <lukasz.maciejonczyk@nordicsemi.no>
Add command to register a receive callback to the net_context used for
the TCP connection that is opened with 'net tcp connect'. The receive
callback will simply print the number of bytes received and inform if
the connection is closed. This makes it possible to test both the tx
and rx paths with the net shell.
Signed-off-by: Tobias Svehagen <tobias.svehagen@gmail.com>
This change fixes routing for routes when the nexthop is a link-local
address of a connected peer.
The issue was that nexthop was correctly set from the routes, but the
code did not detect that the nexthop address (link local of the pc on
ppp interface) was on the ppp interface, because
net_if_ipv6_addr_onlink() only evaluated the network prefix and not
any other information (like the nbr list).
Signed-off-by: Christian Taedcke <christian.taedcke@lemonbeat.com>
This change adds new, optional switch to 'net ping' command - to
be more specific the '-I <iface index>', where the <iface index>
is the number of supported network interface.
One can discover this number from the Zephyr shell after running
'net iface'.
The default interface stays the same - just the switch is added to
override the used interface for 'net ping' invocation.
Signed-off-by: Lukasz Majewski <lukma@denx.de>
The network statistics is stored for each traffic class, but the
collecting function was given net_pkt priority. The priority
must be first converted to traffic class and then the statistics
stored to correct place in the stats array.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Need to use %zd in formatter string for net_pkt_get_len since it returns
a size_t otherwise we get something like:
error: format ‘%d’ expects argument of type ‘int’, but argument
3 has type ‘size_t’ {aka ‘long unsigned int’} [-Werror=format=]
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
The Router Advertisement can have prefix option. It's length
is 4 but the code did not check that which meant that we could
accept malformed packet. See RFC 4861 chapter 4.6.2 for details.
Fixes#25694
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Make sure that we do not add same IPv6 prefix, received from RA,
multiple times to prefix timer list. This avoids possible
denial-of-service issue if we receive suitably crafted RA packet.
Fixes#25698
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
In order to support the retransmission for the outgoing data:
1. The outgoing data packet is appended to the send_data queue
in net_tcp_queue_data().
2. tcp_send_queued_data() is called and will use tcp_send_data()
to sends queued but unsent data packet by packet
until there's an unsent data and the receiver's window isn't full.
tcp_send_queued_data() subscribes send_data_timer
that will handle retrasmissions with tcp_resend_data().
3. tcp_send_data() peeks a single chunk of data from the send_data
queue that will not exceed the maximum segment size
until the the receiver's window is full.
tcp_send_data() uses conn->seq and conn->unack_len as the sequence
number for the TCP packet.
conn->unacked_len is advanced on each send.
4. On data acknowledgment:
- acknowledged amount of data is removed from the beginning
of the send_data queue
- conn->seq is advanced by the acknowledged amount
- conn->unacked_len is decremented by the acknowledged amount
- send_data_timer is cancelled
- tcp_send_queued_data() is called to send queued but
prevoiusly unsent data
5. On timeout, tcp_resend_data() will reset conn->unack_len,
peek one packet from the beginning of the send_queue and resend,
terminating the connection on retries exceeded.
Meanwhile the outgoing data tcp_send_queued_data() is just
appended to the send_data but not sent.
In case of the acknowledgement, tcp_send_queued_data() will
start sending multiple packets until the receiver's window
is full.
Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
In order to support the retransmission for the outgoind data,
add the following into the TCP connection:
- struct net_pkt *send_data (used as a queue)
- send_data_total
- unack_len
- send_data_timer
- send_data_retries
Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
In order to support the send window, add send_win into
the TCP connection.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
In order to support the data retransmission, refactor tcp_out()
into tcp_out_ext() which supports passing the sequence number.
In addition drop modifications of the connection sequence number
from tcp_out_ext(), this is the responsibility of data retransmission.
Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
In order to use struct net_pkt for the outgoing data queue,
update tcp_pkt_alloc() macros, so they support allocation
without buffer.
Additionally, merge tcp_pkt_alloc() macros macros into one.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
Unsuccessfull packet clone in tcp_data_get() isn't handled,
add an error handling and don't ACK the incoming data in this case.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
In order to handle sequence overflow cases, use
net_tcp_seq_greater() to check if the sequence is greater/lower.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
The initial sequence number for a connection should be randomized
to prevent easy guesses.
Do not randomize the sequence number if network test or
test protocol is enabled.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
The link address was not printed correctly as log_strdup() was
missing from the debug print.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Print detailed information about a given net_pkt. This is
useful if there is a memory leak and you want to see more
detailed information about the data inside the buffer.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Added support for Qemu User Networking and tested with
qemu_x86 model. The support is kept simple assuming that
the TAP interface will always be preferred for more
sophisticated / practical use cases.
QEMU User Networking is implemented using "slirp", which
provides a full TCP/IP stack within QEMU and uses that
stack to implement a virtual NAT'd network. As this
support is built into QEMU, it can be used with any model
and requires no admin privileges on the host machine,
unlike TAP.
Added documentation to facilitate the user.
Signed-off-by: Bilal Wasim <bilalwasim676@gmail.com>
If we have removed first net_buf, then we must not restore the
original cursor as that will point to wrong head net_buf.
Add also unit test to check that the packets are removed
properly.
Clarify the documentation that we are removing data from
beginning of the function, also document that the cursor
is reset after this call.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
In order to avoid retransmissions from the peer's side
on full-close, handle states properly.
Signed-off-by: Ravi kumar Veeramally <ravikumar.veeramally@linux.intel.com>
If net_pkt_pull() would cause an empty net_buf, then unref
those empty buffers from the list.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
This commit renames the Kconfig `FLOAT` symbol to `FPU`, since this
symbol only indicates that the hardware Floating Point Unit (FPU) is
used and does not imply and/or indicate the general availability of
toolchain-level floating point support (i.e. this symbol is not
selected when building for an FPU-less platform that supports floating
point operations through the toolchain-provided software floating point
library).
Moreover, given that the symbol that indicates the availability of FPU
is named `CPU_HAS_FPU`, it only makes sense to use "FPU" in the name of
the symbol that enables the FPU.
Signed-off-by: Stephanos Ioannidis <root@stephanos.io>
In order to fix the line tracking of the TCP packet allocation
with the test protocol enabled, refactor tcp_pkt_alloc(),
so the line of the allocation can be tracked properly.
Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
Some services like DHCHPv4 directly send raw packets to the iface.
This causes issue when the iface does not implement l2, e.g.
because it is a socket offload interface. fix that.
Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Make sure we only parse the received TCP options only once. Store
the options to tcp conn struct for later use.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
This patch fixes an issue with TCP options reading. Previous approach
was accessing the options with pointers (th + 1). This does not work if
TCP options span multiple net_pkt buffer fragments. Instead net_pkt
functions must be used.
Signed-off-by: Ruslan Mstoi <ruslan.mstoi@intel.com>
In order to avoid retransmissions from the peer's side
on active connection close, acknowledge the incoming FIN+ACK
in FIN_WAIT_1 state.
Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
We cannot directly use the local address in net_context when
registering the connection as it is not proper type. So create
temp address variable for that purposes.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Avoid dynamic allocations and all the issues if we run out of
memory, by placing the connection endpoint directly to TCP
connection struct.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
In tcp_endpoint_cmd() we allocate and then almost immediately
destroy the allocated endpoint. This is quite inefficient so
use a endpoint from stack in the compare.
Separate endpoint allocation from value setting so the caller
can decide how the endpoint union values are set.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Some other part of Zephyr has similar defines (SRC)
causing build failures.
Signed-off-by: Ravi kumar Veeramally <ravikumar.veeramally@linux.intel.com>
Assigning the allocated IPv4 endpoint as struct sockaddr
leads to the memory overwrite, assign the correct structure,
i.e. struct sockaddr_in.
Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
In order to implement active connection close with the
TIME_WAIT state, send FIN and enter FIN_WAIT_1 state.
We actually send FIN+ACK as most of the implementations do.
Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
In order to support TIME_WAIT state during the TCP connection
termination, add a TIME_WAIT timer and the corresponding state.
Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
In order to improve readability, rename TCP_FIN_WAIT
states into TCP_FIN_WAIT_1, TCP_FIN_WAIT_2.
Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
The net_context API will change, the s32_t timeout parameter
will be changed to k_timeout_t. All the Zephyr users of this API will
be changed in subsequent commits. This is internal Zephyr API only,
so the API is not deprecated etc.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
This patch enables handling of a single octet of option-kind at the end
of the option list (EOL). Also, add functionality to drop a segment with
an invalid single octet option-kind at the EOL.
Signed-off-by: Ruslan Mstoi <ruslan.mstoi@intel.com>
Use existing network stack calls to create net pkt,
ip header and udp header creation. Also simplify
finalize api calls.
Signed-off-by: Ravi kumar Veeramally <ravikumar.veeramally@linux.intel.com>
Use existing network stack calls to create net pkt,
ip header and tcp header creation. Also simplify
finalize api calls.
Signed-off-by: Ravi kumar Veeramally <ravikumar.veeramally@linux.intel.com>
net_context local sin/sin6 addresses are used only
when input src is not available. So ASSERT should
be inside if block.
Signed-off-by: Ravi kumar Veeramally <ravikumar.veeramally@linux.intel.com>
Counting how many times it went suspended, for how long on the last one
and on overage.
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
End option indicates the end of the option list. Hence, correct way to
handle it is to break out of the option parsing routine.
Signed-off-by: Ruslan Mstoi <ruslan.mstoi@intel.com>
According to RFC 793 and IANA "TCP Option Kind Numbers" an option with
kind 0 is an End of Option List option and not a PAD.
Signed-off-by: Ruslan Mstoi <ruslan.mstoi@intel.com>
Replace all occurences of BUILD_ASSERT_MSG() with BUILD_ASSERT()
as a result of merging BUILD_ASSERT() and BUILD_ASSERT_MSG().
Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
Such state needs to be set _from_ the PM API functions and not the other
way round. So if a network device driver does not support such API, it
will not be able to set the core net_if on PM state, obviously.
Currently, these functions only set/unset NET_IF_SUSPENDED flag.
More logic will be added later, to decide whether the net_if can be
actually set to suspend mode or not and also to take care of all timers
related to the interface.
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
This function can be used for example by network power management
to check if the network interface can be suspended or not.
If there are network packets in transmit queue, then the network
interface cannot be suspended yet.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
We need to know whether the net_pkt was successfully placed
to transmit queue. It is possible in TX side, that the net_pkt
is already in TX queue when for example TCP packet is
re-transmitted, in which case the queue submit will fail.
This cannot happen in RX side as there are no timers involved.
It is required to check about such pending flag before trying to submit
it into the queue. Indeed, the work queue could be scheduled right after
such queuing, thus checking for the pending flag afterwards would
provide a false information.
It is unfortunate k_work_submit_to_queue() does not return anything as
it would simplify the code then.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
This reverts commit 8739517107.
Pull Request #23437 was merged by mistake with an invalid manifest.
Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
Replace all occurences of BUILD_ASSERT_MSG() with BUILD_ASSERT()
as a result of merging BUILD_ASSERT() and BUILD_ASSERT_MSG().
Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
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>
This commit updates the the IPv4 ping command to handle the ENETUNREACH
error number returned by `net_icmpv4_send_echo_request` function when
IPv4 is unavailable.
The `net_icmpv4_send_echo_request` function previously returned EINVAL
when IPv4 is unavailable and this caused the shell command to report
"Invalid IP address" even when the provided IP address is correct; this
problem was corrected by returning ENETUNREACH instead of EINVAL in the
aforementioned function.
Signed-off-by: Stephanos Ioannidis <root@stephanos.io>
net_icmpv4_send_echo_request currently returns EINVAL (invalid
argument) when IPv4 is unavailable.
Since the availability of IPv4 has nothing to do with the arguments
provided to this function and the meaning of EINVAL in this case is
ambiguous, return the ENETUNREACH (network is unreachable) error
number instead.
Signed-off-by: Stephanos Ioannidis <root@stephanos.io>
The TCP connection might be concurrently modified from the
TR/TX threads, so add a mutex to protect from the concurrent
modification.
Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
After removing the test windows, update test protocol
functions for the TTCN-3 sanity check.
Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
These test receive windows were used by TTCN-3 sanity check,
but it's possible to do without them.
Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
In order to drop dependency on a heap, drop the
test send window.
Use net_tcp_queue_data() to receive the outgoing data
from the socket layer.
Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
In order to drop dependency on a heap, drop the test
receive window.
The receive window was needed for TTCN-3 sanity check,
but it's possible to do without it.
Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
On incoming SYN+ACK, use the existing TCP connection.
This problem was overlooked earlier and was found while
testing TCP2 client side.
Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
In SYN_SENT check the ack number of the incoming TCP message
against our sequence number.
This problem was overlooked earlier and was found while
testing TCP2 client side.
Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
Don't erroneously instantiate an extra TCP connection
on TCP connect.
This problem was overlooked earlier and found while testing
TCP2 client side.
Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
k_timer callback is executed from ISR context, which isn't
currenty compatible with Zephyr's shell implementation.
This problem was found while testing TCP2 client side.
Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
In order to support TTCN-3 based TCP2 sanity check,
register test inputs with net_conn_register() and adjust
test functions to account for this.
Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
In order to support IPv4/IPv6, work with packet through
net_pkt_ip_hdr_len(), net_pkt_ip_opts_len() which account
for IPv4/IPv6, IPv4 options and IPv6 extension headers.
Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
Remove temporary interception of TCP, UDP for TTCN-3 based
TCP2 sanity check.
As a part of adding IPv6 support, TCP2 will register test
callbacks/inputs with net_conn_register().
Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
Allocate tcp2.c endpoints before storing port numbers or addresses.
Select the IPv4 source address since net_context_create_ipv4_new()
is not currently called on packet output.
Signed-off-by: Patrik Flykt <patrik.flykt@intel.com>
NET_OFFLOAD interfaces do not handle ICMP request. Request to send ICMP
packet resulted in NULL pointer dereference in net_if_tx() later
on. Prevent that by detecting NET_OFFLOAD interfaces early in icmpv4
module.
Signed-off-by: Marcin Niestroj <m.niestroj@grinn-global.com>
If the system has more than one network interface, then it should
be possible to bind a AF_PACKET socket to each interface if the
network interface index is set when bind() is called. This was
not possible earlier as the code was always using default network
interface with AF_PACKET socket bind().
Fixes#23153
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
This option specifies the name of the client.
See https://tools.ietf.org/html/rfc2132#section-3.14
This is useful for identification when looking in DHCP lease table.
Signed-off-by: Luuk Bosma <l.bosma@interay.com>
opts_len renamed to total_opts_len in previous changes.
But it's not replaced at one place.
Signed-off-by: Ravi kumar Veeramally <ravikumar.veeramally@linux.intel.com>
If IPv4 header options has wrong options length
(e.g. options length is more that actual data),
then parser decrements opts_len without checking
actual data length. Which crashes the network stack.
Signed-off-by: Ravi kumar Veeramally <ravikumar.veeramally@linux.intel.com>
net_pkt_clone() initializes the original packet cursor
and clone the packet. But it doesn't restore the cursor
back to original position.
Issue noticed when mDNS resolving fails when mdns responder
is also enabled.
net_conn_input(), in case of multicast packet, connection
handler clone the packet and deliver to matching handler.
Example case: dns_resolver and mdns_responder both register
handlers for 5353 port. After first clone original packet
cursor moved back to starting position. But first cloned
packet cursor is set properly. Second time cloning makes
cursor position to set to zero. Which makes second packet
handler header unpacking goes wrong.
Fixes#21970.
Signed-off-by: Ravi kumar Veeramally <ravikumar.veeramally@linux.intel.com>
Same deal as in commit eddd98f811 ("kconfig: Replace some single-symbol
'if's with 'depends on'"), for the remaining cases outside defconfig
files. See that commit for an explanation.
Will do the defconfigs separately in case there are any complaints
there.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
When we are about to send a NS, we should not use the destination
address as that is typically the multicast address. We should use
the target address instead.
This fixes the case where a neighbor is in incomplete state, and
we send a neighbor solicitation to find out whether the neighbor
is reachable. In this case the destination address is the solicited
node multicast address which is no use when trying to figure out
the source address.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
This commit fixes a problem where our own IP address
is added to the cache instead of the senders.
This bug was due to a swap of the address in the original packet.
The swapping of the address is now removed.
Signed-off-by: Alexander Wachter <alexander@wachter.cloud>
A neighbor solicitation packet for an address that is not ours should
not cause the sender to be added to the neighbor cache. See RFC 4861
section 7.2.3.
Add the neighbor to the cache when we have decided to respond to the
NS packet.
Fixes#21869.
Signed-off-by: Jonas Norling <jonas.norling@greeneggs.se>
Use the same code when parsing source link-layer address option for
both RA and NS packets. It looked like handle_ns_neighbor() could
actually read too much data into lladdr.addr when handling 8-byte
addresses (802.15.4).
Signed-off-by: Jonas Norling <jonas.norling@greeneggs.se>
A memory corruption could happen in `uncompress_IPHC_header` function,
when data was moved to make place in the net buffer for the uncompressed
IPv6/UDP header.
The size of data being moved should only contain the original data size,
not incremented by the amount of space needed to expand the header,
which was already added to the net buffer size. In result, the `memmove`
operation could exceed the allocated net buffer and cause memory
corruption.
Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
If no other route is found, the network interface prefixes are
evaluated. If a matching interface is found, the packet is sent out on
this interface.
Signed-off-by: Christian Taedcke <christian.taedcke@lemonbeat.com>
The address family of the received packet must be set, before routing
it. E.g. the ethernet driver would drop the packet if this is not
done.
Signed-off-by: Christian Taedcke <christian.taedcke@lemonbeat.com>
The transition from LISTEN to SYN_SENT nullifies the th,
guard on th being NULL in SYN_SENT.
Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
In case the final ACK for the connection establishment arrives
out of order, evaluate the sequence number in SYN_RECEIVED,
so the data packet isn't false identified as a final ACK.
Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
In order to simplify the evaluation of the incoming data,
add len and evaluate the data for the incoming packet once.
Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
Create a new connection only for the SYN packet,
otherwise pass a packet into existing connection.
Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
The initial logic with this check is too restrictive,
do not bail-out on unconsumed flags.
Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
Add a diagnostic information on network buffer sizes
and the total length of the packet.
Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
Set the net_context to NET_CONTEXT_CONNECTED state only once
in transitions to TCP_ESTABLISHED.
Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
1. Reduce the internal buffer
2. Eliminate extra string pointer
3. Add a comment on deleting the last comma
Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
In order to avoid naming collision with tcp_recv(),
rename tcp_recv() into tp_tcp_recv().
This function is used by the test protocol.
Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
Drop snprintf() and use snprintk() as snprintk()
is more suitable for the networking code.
Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
