Allow user to specify the network interface where the query should
be sent, but only if the user has supplied the DNS servers in sockaddr
list. If user has specified a DNS servers in a string list, then the
possible network interface is taken from the string.
The reason for this is that it is not possible to add network interface
to the sockaddr list so an extra parameter is needed.
Signed-off-by: Jukka Rissanen <jukka.rissanen@nordicsemi.no>
Allow user to specify socket service struct and port number so
that DNS servers specified in Kconfig etc are not used. This way
we can send a DNS query to arbitrary address without it affecting
the system configuration.
This is used in mDNS probing so that that mDNS responder can send
probe message and not change / configure system global DNS config.
Signed-off-by: Jukka Rissanen <jukka.rissanen@nordicsemi.no>
Introduce dns_resolve_name_internal() that allows resolving a name
and not use DNS cache if caching is enabled.
This is needed in mDNS probing (RFC 6762 chapter 8.1) which needs
to send a mDNS query and not get any results from cache.
Signed-off-by: Jukka Rissanen <jukka.rissanen@nordicsemi.no>
Print interface status information for "net iface" command.
This is useful information when debugging connectivity issues.
Signed-off-by: Jukka Rissanen <jukka.rissanen@nordicsemi.no>
To avoid starvation of a traffic class by another, limit the maximum amount
of packets, that can sit in a single traffic-class-fifo to a fraction of
the maximum amount of available packets. In the tx-case also reserve
packets for direct sending, in the case, where
CONFIG_NET_TC_SKIP_FOR_HIGH_PRIO is enabled.
Signed-off-by: Cla Mattia Galliard <cla-mattia.galliard@zuehlke.com>
Allow user to specify protocol extensions when receiving data
from Ethernet network. This means that user can register L3
protocol handler using NET_L3_REGISTER() with the desired
protocol type. Ethernet code will then call the handler if
such a protocol type packet is received. This is currently
only implemented for Ethernet. The original IPv4 and IPv6
handling is left intact even if they can be considered to
be L3 layer protocol. This could be changed in the future
if needed so that IPv4 and IPv6 handling could be made
pluggable protocols.
Signed-off-by: Jukka Rissanen <jukka.rissanen@nordicsemi.no>
This is helper is only needed in socket multicast interface selection
where we need to get one address from the interface so that it will
tell (when getsockopt() is used), the interface IPv4 address where
multicast packets will be sent. This is private function which is not
needed in public headers so place the prototype to net_private.h file.
Signed-off-by: Jukka Rissanen <jukka.rissanen@nordicsemi.no>
Some of the network tests require that source and destination
addresses are not swapped so allow test to control the address
swapping from the test.
Signed-off-by: Jukka Rissanen <jukka.rissanen@nordicsemi.no>
If PMTU is enabled, then use the MTU value from it instead of always
using network interface MTU.
Signed-off-by: Jukka Rissanen <jukka.rissanen@nordicsemi.no>
Net offloading doesn't need net TC threads to be enabled as they're used
by the native stack. This fixes build if CONFIG_NET_OFFLOAD is enabled
but native stack is disabled.
Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
According to recvmsg man page, msg_controllen should be set to the sum
of the length of all control messages in the buffer.
This is missing from the current recvmsg implementation.
This commit aims to fix this by updating msg_controllen each time control
data are added to the buffer.
This commit also fixes cases where the msg_controllen is cleared
incorrectly.
Fixes#77303
Signed-off-by: Axel Le Bourhis <axel.lebourhis@nxp.com>
Do not depend on init level but start the socket service
already in net core init because DNS init code depends on
socket service API to be ready to serve. And we call DNS
init at the net core init.
Signed-off-by: Jukka Rissanen <jukka.rissanen@nordicsemi.no>
Allow mDNS resolver and responder to to be used at the same
time so that both can use the port 5353. This requires
a DNS traffic dispatcher which affects also the normal DNS
resolver.
Fixes#72553
Signed-off-by: Jukka Rissanen <jukka.rissanen@nordicsemi.no>
We usually cannot use context->local for established TCP connections
because the local address is not updated for TCP if we are bound to
any address. So create helper that try to figure out the end point
addresses.
Signed-off-by: Jukka Rissanen <jukka.rissanen@nordicsemi.no>
This creates support for IPv6 privacy extensions which is described
in RFC 8981. This will also add API that can be used to add IPv6
prefixes to a allow or deny list privacy extension filter.
The code will create temporary IPv6 addresses from prefixes that
are advertised by Router Advertisement messages. The temporary
IPv6 addresses are then expired according to lifetime and removed.
Fixes#9349
Signed-off-by: Jukka Rissanen <jukka.rissanen@nordicsemi.no>
For debugging purposes it would be nice to see the verdict
printed as a string instead of number.
Signed-off-by: Jukka Rissanen <jukka.rissanen@nordicsemi.no>
Refactor the IP tunneling support as the input callback was removed
in previous commit. The data will flow through the recv callback now
as expected.
Signed-off-by: Jukka Rissanen <jukka.rissanen@nordicsemi.no>
If we receive a packet from non localhost interface, then
drop it if either source or destination address is a localhost
address.
Signed-off-by: Jukka Rissanen <jukka.rissanen@nordicsemi.no>
Add low level support for setting IP_PKTINFO or IPV6_RECVPKTINFO
socket options. The support is disabled by default.
Signed-off-by: Jukka Rissanen <jukka.rissanen@nordicsemi.no>
Added igmpv3 support based on the already existing structure for igmpv2.
The already existing api is not modified to prevent breaking exisiting
applications.
Signed-off-by: Ibe Van de Veire <ibe.vandeveire@basalte.be>
Added igmpv3 checksum function to make it possible to calculate the
checksum of a complete igmpv3 pkt at once.
Signed-off-by: Ibe Van de Veire <ibe.vandeveire@basalte.be>
This allows IPv4 and IPv6 share the same port space.
User can still control the behavior of the v4-mapping-to-v6
by using the IPV6_V6ONLY socket option at runtime.
Currently the IPv4 mapping to IPv6 is turned off by
default, and also the IPV6_V6ONLY is true by default which
means that IPv4 and IPv6 do not share the port space.
Only way to use v4-mapping-to-v6 is to enable the Kconfig
option and turn off the v6only socket option.
Signed-off-by: Jukka Rissanen <jukka.rissanen@nordicsemi.no>
Allow user to send ICMP Echo Request message a.k.a pings.
The same ICMP API and framework is used for network stack
internal needs in later commits. One benefit for this new
API is that it allows sending Echo Requests to offlined
network devices.
Signed-off-by: Jukka Rissanen <jukka.rissanen@nordicsemi.no>
This commits adds support for the SO_REUSEPORT socket option.
The implementation follows the behavior of BSD and tries to also follow
the specific additional features of linux with the following
limitations:
* SO_REUSEADDR and SO_REUSEPORT are not "the same" for client sockets,
as we do not have a trivial way so identify a socket as "client"
during binding. To get the Linux behavior, one has to use SO_REUSEPORT
with Zephyr
* No prevention of "port hijacking"
* No support for the load balancing stuff for incoming
packets/connections
There is also a new Kconfig option to control this feature, which is
enabled by default if TCP or UDP is enabled.
Signed-off-by: Tobias Frauenschläger <t.frauenschlaeger@me.com>
This commit adds support for the SO_REUSEADDR option to be enabled for
a socket using setsockopt(). With this option, it is possible to bind
multiple sockets to the same local IP address / port combination, when
one of the IP address is unspecified (ANY_ADDR).
The implementation strictly follows the BSD implementation and tries to
follow the Linux implementation as close as possible. However, there is
one limitation: for client sockets, the Linux implementation of
SO_REUSEADDR behaves exactly like the one for SO_REUSEPORT and enables
multiple sockets to have exactly the same specific IP address / port
combination. This behavior is not possible with this implementation, as
there is no trivial way to identify a socket to be a client socket
during the bind() call. For this behavior, one has to use the
SO_REUSEPORT option in Zephyr.
There is also a new Kconfig to control this feature similar to other
socket options: CONFIG_NET_CONTEXT_REUSEADDR. This option is enabled by
default if TCP or UDP are enabled. However, it can still be disabled
explicitly.
Signed-off-by: Tobias Frauenschläger <t.frauenschlaeger@me.com>
net_iface_status is larger than scan_result, causing
net_iface events to be dropped due to info exceeding
NET_EVENT_INFO_MAX_SIZE.
Signed-off-by: Noah Luskey <LuskeyNoah@gmail.com>
At the moment, NET_EVENT_IPV6_PREFIX_ADD and NET_EVENT_IPV6_PREFIX_DEL
events provide provide information about an address without its length
and lifetime.
Signed-off-by: Konrad Derda <konrad.derda@nordicsemi.no>
The purpose of the change was to have the Zephyr network stack
internally add the IGMP all systems 224.0.0.1 multicast address to a
multicast membership list so that multicast hash filter implementations
can add this address to the hash filter.
Fixes#53548
Signed-off-by: Chamira Perera <chamira.perera@audinate.com>
Adds support for incoming and outgoing IPv4 fragmented packet support,
allowing a single packet that is too large to be sent to be split up
and sent successfully.
Signed-off-by: Jamie McCrae <spam@helper3000.net>
Instead of doing a 1-complement addition for every 16-bit word, process
32-bit words and handle the 1-complement addition at the end.
This work is a colaboration with Diego Pino García. The algorithm is
inspired by:
https://blogs.igalia.com/dpino/2018/06/14/fast-checksum-computation/
Signed-off-by: Sjors Hettinga <s.a.hettinga@gmail.com>
Use a union to capture all big NET event structures with a default size
of 32bytes, this makes maintenance easier.
Signed-off-by: Krishna T <krishna.t@nordicsemi.no>
The function is no longer used, as its functionality has been replaced
with net_if_carrier_off().
Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
Logging v1 has been removed and log_strdup wrapper function is no
longer needed. Removing the function and its use in the tree.
Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
In order to bring consistency in-tree, migrate all subsystems code to
the new prefix <zephyr/...>. Note that the conversion has been scripted,
refer to zephyrproject-rtos#45388 for more details.
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
The print specifier for `atomic_t` should be updated
to `%ld`, `%lu`, or `%lx` to account for the type
change of `atomic_t` to `long`.
Signed-off-by: Christopher Friedt <chrisfriedt@gmail.com>
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>
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>
As the input string can be allocated from stack, we need to use
log_strdup() in net_pkt_hexdump() to print the extra string.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
net_buf_max_len() provides the maximum number of bytes which can be put
behind the data pointer. This provides a save alternative to using the
size field of the net_buf structure directly, which does not take the
reserved bytes (headroom) into account.
This commit also replaces the usage of the size field in places where
size got used directly. Code has not been adjusted when it is easy to
recognise that the buffer does not have any reserved bytes, which is the
case after allocation or reset. Same goes for the faulty usage by
net_pkt as exposed by the last commit and begin fixed by a separate
commit.
Even though it would be cleaner, I decided to not rename the size field
to e.g. __buf_size in order to keep the amount of code changes low.
Signed-off-by: Reto Schneider <reto.schneider@husqvarnagroup.com>
The L4 connected/disconnected events are usually used to detect
when the application is connected to the network. Unfortunately
if the device has also a static address, then the connected event
might be created (for the static address) even if DHCPv4 is not
ready yet and application would not be able to connect (yet) to the
network. In order to allow the application to fine tune the network
connection creation, generate start, bound and stop events for DHCPv4.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
When compiling with CONFIG_NET_NATIVE=n and CONFIG_NET_OFFLOAD=n
then the following error is printed.
```
In file included from zephyr/subsys/net/ip/ net_if.c:23:0:
zephyr/subsys/net/ip/net_private.h: In function 'net_context_state':
zephyr/subsys/net/ip/net_private.h:58:27:
error: type of 'context' defaults to 'int' [-Werror=implicit-int]
static inline const char *net_context_state(context)
```
This add `struct net_context *` as type for context.
Signed-off-by: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no>
