This commit allows to add callbacks to NET_EVENT_IF_UP events before
the network initialization.
Signed-off-by: Pieter De Gendt <pieter.degendt@basalte.be>
If we receive any data in FIN_WAIT_1, then ack it even if we
are discarding it.
Fixes#33986
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Signed-off-by: Jim Paris <jim@jim.sh>
If there are no sockets in the system, then do not drop the
packet immediately as there can be other L2 network handlers
like gPTP in the system. This will also allow ICMP messages
to pass to local handler.
Fixes#34865
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
When application calls TCP connect(), the call is blocked
by a semaphore which is then released when the connection
is established. Unfortunately the semaphore release was done
before the connection was marked as established. Depending
on the configuration options set, it is possible that after
the semaphore release, the thread that is waiting on connect()
is run immediately. Because of this, the connection bookeeping
still thought that the connection was not established even if
it was. A simple solution is to release the semaphore after
the connection is marked as established.
Fixes#35390
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Without TX thread support in network stack USB device stack
blocks it self by usb_transfer_sync() which is
called in the same context as usb_set_interface() in sequence
of netusb_enable(), net_if_up(), net_l2_send().
Fixes: #35338
Signed-off-by: Johann Fischer <johann.fischer@nordicsemi.no>
The return value might be uninitialized if there was no
suitable IPv4 address found for the network interface.
Coverity-CID: 224630
Fixes#35158
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
When destination address is a multicast address, select the source
address from non link local address first.
This means that for example if we are responding to mDNS query,
and we have both normal IPv4 and LL (169.254.x.y) address set for
the interface, we are now able to select the normal address instead
of the LL one.
Fixes#34409
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
The ISN algorithm from RFC 6528 doesn't need Mbed TLS, but rather the
MD5 algorithm from Mbed TLS. Therefore select MBEDTLS_MD and
MBEDTLS_MAC_MD5_ENABLED in addition to MBEDTLS.
This fixes the following build failure when using TLS version 1.2 is
selected:
zephyr/subsys/net/ip/tcp2.c:1329: undefined reference to
`mbedtls_md5_ret'
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
The k_work handler cannot manipulate the used k_work. This means
that it is not easy to cleanup the net_pkt because it contains
k_work in it. Because of this, use k_fifo instead between
RX thread and network driver, and between application and TX
thread.
A echo-server/client run with IPv4 and UDP gave following
results:
Using k_work
------------
TX traffic class statistics:
TC Priority Sent pkts bytes time
[0] BK (1) 21922 5543071 103 us [0->41->26->34=101 us]
[1] BE (0) 0 0 -
RX traffic class statistics:
TC Priority Recv pkts bytes time
[0] BK (0) 0 0 -
[1] BE (0) 21925 6039151 97 us [0->21->16->37->20=94 us]
Using k_fifo
------------
TX traffic class statistics:
TC Priority Sent pkts bytes time
[0] BK (1) 15079 3811118 94 us [0->36->23->32=91 us]
[1] BE (0) 0 0 -
RX traffic class statistics:
TC Priority Recv pkts bytes time
[0] BK (1) 0 0 -
[1] BE (0) 15073 4150947 79 us [0->17->12->32->14=75 us]
So using k_fifo gives about 10% better performance with same workload.
Fixes#34690
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Use recently introduced API, which takes care of gracefully closing any
pending DNS requests and replacing existing DNS server list with new
one.
Signed-off-by: Marcin Niestroj <m.niestroj@grinn-global.com>
Initializing a work item from its handler will destroy the content of
the kernel structures used to process the work item. This can lead to a
system crash for example when the delayed work is being rescheduled when
the previous run is already queued for processing but not yet executed.
Fix this by initializing the work item once during trickle timer
creation and moving the logic, previously achieved by switching the work
handler, into the new work handler.
Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
This value is used to measure the RX/TX statistics. The previous
use of the timestamp field did not work in RX path as the timestamp
value could be overwritten by the driver if gPTP timestamping
is enabled. So to fix the RX statistics, use a separate field
for the create time.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
If user enables CONFIG_USERSPACE, then at least one TX or RX thread
is needed to isolate the application from the kernel space components.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Set the default behaviour of the networking subsystem so that
no TX or RX threads are created. This will save RAM as there
is no need to allocate stack space for the RX/TX threads.
Also this will give small improvement to network packet latency
shown here:
* with 1 traffic class (1 TX and RX thread)
Avg TX net_pkt (42707) time 60 us [0->22->15->22=59 us]
Avg RX net_pkt (42697) time 36 us [0->10->3->12->7=32 us]
* with 0 traffic classes (no TX and RX threads)
Avg TX net_pkt (41608) time 42 us [0->21->20=41 us]
Avg RX net_pkt (41593) time 31 us [0->9->12->8=29 us]
In this qemu_x86 test run, 40k UDP packets was transferred between
echo-server and echo-client. In TX the speed increase was 30% and
in RX it was 14%.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Set the net_pkt creation time just before the actual net_pkt
is allocated in order to get more accurate information for
statistics.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
If user has set the priority of the sent net_pkt to highest
priority (NET_PRIORITY_CA) and enabled CONFIG_NET_TC_SKIP_FOR_HIGH_PRIO
option, then push that packet directly to driver instead of TX queue.
This will make the TX sending latency smaller for the high priority
packet. This is not enabled by default.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
The net_shell only uses iface_flags2str when CONFIG_NET_NATIVE is
enabled. Disabling this produces an "unused function" warning for this
function. Wrap the function in an #ifdef to silence the warning for this
configuration.
Signed-off-by: Trond Einar Snekvik <Trond.Einar.Snekvik@nordicsemi.no>
This option was only able to collect statistics of transmitted
data. The same functionality is available if one sets the
CONFIG_NET_PKT_RXTIME_STATS and/or CONFIG_NET_PKT_TXTIME_STATS
options.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
If `CONFIG_NET_ICMPV4_ACCEPT_BROADCAST` is enabled ICMPv4 should reply
to request packets sent to the broadcast address of an interface with
the unicast address of that interface from the same subnet.
Previously the code blindly copied the ICMP source address which meant
it would reply to broadcast packets with a broadcast source address.
Signed-off-by: Arvin Farahmand <arvinf@ip-logix.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>
Create net_l2_send() function which will be called by each L2
sending function so that we can catch all the network packets
that are being sent. Some L2 layers send things a bit differently,
so in those cases call the net_capture_send() directly by the L2
layer.
Add network packet capture call in receive side after the pkt has
been received by the RX queue handler. This avoids calling the
net_capture_send() from ISR context.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
The "net mem" command did not print external net_pkt slabs
properly (the number of free net_pkt's was not printed).
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Show detailed information about network interface that is down,
only when user asks such information about one specific network
interface. This means that for "net iface" command only
"Interface is down." is printed but the command "net iface 1"
will print detailed information even if interface is down.
This helps to view the information and user does not need
to bring interface up to see the details.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Add infrastructure to allow user to configure the system so that
all the network packets, that are sent to or received from a specific
network interface, are sent to remote system for analysis.
The captured network packets are placed as a payload in UDP packet,
which is then sent inside a tunnel to a remote host. The host can
then receive the packets and for example show them in wireshark.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Add get/set helpers to store information whether the net_pkt
is captured already or not. This bit is used to detect capture
loop and avoid recursion.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Instead of forcing net_pkt_clone() use the tx_pkts slab, use
the same slab that was used when allocating the original net_pkt.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Implement SO_BINDTODEVICE socket option which allows to bind an open
socket to a particular network interface. Once bound, the socket will
only send and receive packets through that interface.
For the TX path, simply avoid overwriting the interface pointer by
net_context_bind() in case it's already bound to an interface with an
option. For the RX path, drop the packet in case the connection handler
detects that the net_context associated with that connection is bound to
a different interface that the packet origin interface.
Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
With these changes, dial up Zephyr application/driver can use
socket(AF_PACKET, SOCK_RAW, IPPROTO_RAW) for creating
a socket for sending/receiving data to/from ppp net link, i.e.
packet is going to/from PPP L2.
Signed-off-by: Jani Hirsimäki <jani.hirsimaki@nordicsemi.no>
IPv6 source address selection procedure selected link-local address
for any muticast destination with other scope than mesh-local. It
was a cause of problems for broader multicast scopes like admin-, or
site-local. For such broader scopes source address must be at least
as broad as the scope of multicast destination.
This patch updates IPv6 source address selection procedure. Now
link-local address is selected only for link-local destinations,
including multicast destinations. For broader destination scope,
source address with broader scope is selected.
Signed-off-by: Hubert Miś <hubert.mis@nordicsemi.no>
Previously, a non null-terminated "string" could
be passed to z_impl_net_addr_pton if the string was
exactly `INET6_ADDRSTRLEN` long.
Signed-off-by: James Harris <james.harris@intel.com>
When printing network interface information print index or
index + pointer, so that the output is more user friendly.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
As DAD is not done for point-to-point links, we can mark them
valid immediately. If this is not done, then the address will
never be picked as a source address to a sent packet.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Useful to know what flags are set for the network interface
so print them in the shell by the "net iface" command.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
This can be used to implement tunneling, VPN etc. The virtual
interfaces can be chained together to support multilayer
network interfaces.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Add a function that allow caller to create IPv4 header with
possibility to set various fields in the header.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Application can disable IPv4 or IPv6 later if those are not
needed nor used for a given network interface.
Fixes#14581
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Remove legacy TCP stack as it is replaced by the new TCP2 stack.
The TCP2 stack has been the default stack since 2.4 release.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
