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>
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>
As we move to making the `label` property optional, we need to account
for widespread use of `dev->name` in contexts where the pointer is not
validated before it is dereferenced. Use an empty string instead of a
null pointer when no label is provided.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
Generated device and driver names have changed with commits [1] and [2],
but net offload drivers missed the conversion. Update net offload DT
device macros now.
[1] commit 8c1bef535b ("device: support generating defines from
devicetree nodes with no label")
[2] commit f91e9fba51 ("device: fix potential truncation of DT-derived
device names")
Signed-off-by: Marcin Niestroj <m.niestroj@grinn-global.com>
While using the encoded path to a device tree node guarantees a unique
identifier for the corresponding device there is a limit on the number
of characters of that name that can be captured when looking up a
device by name from user mode, and the path can exceed that limit.
Synthesize a unique name from the node dependency ordinal instead, and
update the gen_defines script to record the name associated with the
full path in the extern declaration.
Add a build-time check that no device is created with a name that
violates the user mode requirement.
Also update the network device DTS helper functions to use the same
inference for dev_name and label that the real one does, since they
bypass the real one.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
The proper usage of @param in callbacks is currently unsupported by
Doxygen so not warnings are generated. The issues fixed with this commit
where found while adding support to Doxygen for validating @param in
callbacks like it currently does for functions.
Signed-off-by: Fabio Utzig <fabio.utzig@nordicsemi.no>
Provide versions of NET_DEVICE_INIT, NET_DEVICE_INIT_INSTANCE, and
NET_DEVICE_OFFLOAD_INIT that are both devicetree node and instance
aware. We use the _DEFINE suffix for the DT versions to match the
naming convention in device.h
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
The "tc" field which was holding the traffic class thread
priority is not used nor needed so remove it from the struct
to save some space.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Now that device_api attribute is unmodified at runtime, as well as all
the other attributes, it is possible to switch all device driver
instance to be constant.
A coccinelle rule is used for this:
@r_const_dev_1
disable optional_qualifier
@
@@
-struct device *
+const struct device *
@r_const_dev_2
disable optional_qualifier
@
@@
-struct device * const
+const struct device *
Fixes#27399
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
The indentation went wrong when the integer types was changed
from the type "u8_t" to type "uint8_t". This changed the length
of the type and caused the code to look bad in places.
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>
There use to be a config attribute of type device_config, on which
config_info could be found. config_info was thus named that way to
differentiate easily from config attribute in struct device.
Now that there is no such device_config structure, config_info in
structure device now, can be renamed to config.
Semantically, it makes for sense. We have an attribute pointing to the
configuration of the device driver instance. Configuration information
is correct but has a redundant meaning.
Fixes#27397
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@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>
The NET_IF_OFFLOAD_INIT() macro was not converted to use
Z_STRUCT_SECTION_ITERABLE() macros in commit 62580748e5
("net: Use section foreach macros"). This meant that for those boards
that use offloaded network stack, the network interface was not created
and network connectivity was lost.
Fixes#27037
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
The Z_STRUCT_SECTION_ITERABLE() provides an alignment so remove
the 32 byte alignment for net_if and ppp_protocol_handler structs.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.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>
This parameter points to the driver instance private data, and not to
its configuration data, which one is set via cfg_info parameter.
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.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>
By changing the various *NET_DEVICE* macros. It is up to the device
drivers to either set a proper PM function or, if not supported or PM
disabled, to use device_pm_control_nop relevantly.
All existing macro calls are updated. Since no PM support was added so
far, device_pm_control_nop is used as the default everywhere.
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
commit 971ae59913 ("net: pkt: Make sure iface is not null when
accessing L2") fixed net_if_l2 where iface was NULL, however if
iface->if_dev is NULL, the check breaks and returns an offset of
NULL (0x82 or so). This is incorrect.
Let's add a check for iface->if_dev as well.
Signed-off-by: Michael Scott <mike@foundries.io>
It is possible that the network interface is not set when we
check the interface in net_pkt.c:pkt_buffer_length(). For example
in icmpv6 unit test the interface is left as NULL as the test does
not care about what network interface is used. For real hw like
mimxrt1050_evk, which supports Ethernet, we need to add additional
checks for the interface being non-null.
Fixes#20088
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
A socket-offloaded interface should bypass interface initialization in
the same way as net-offloaded interface does.
Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
Allow user to disable native IP stack and use offloaded IP
stack instead. It is also possible to enable both at the same
time if needed.
Fixes#18105
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Removing an IPv4 router was missing, as well as finding the default
router for an IPv4 address.
Note howevere that IPv4 router features are not used anywhere yet. But
at least the API is there and is a 1:1 to IPv6, if that matters.
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
- router lifetime is always a u16_t so fixing
net_if_ipv6_router_update_lifetime() signature.
- Coalescing router timers into one: this reduces the net_if_router
structure by 22 bytes
- refactor IPv6 and IPv4 router code so it's handled in generic
functions, to avoid duplicating 90% of the code for each family. This
also fixes the lifetime support for IPv4 which was missing.
Note however that IPv4 routing support seems to be missing as none of
the relevant functions are used anywhere yet.
Fixes#8728
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
This reduces the size of struct net_if_ipv6 by 24 bytes by moving
the k_delayed_work attribute into net_if core code.
Then each net_if_ipv6 can be added to the timer handler via a slist.
This does not make much gain if the system has only 1 network interface
It starts to be interesting if it has 2+ network interfaces then.
Fixes#8728
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
This reduces the size of struct net_if_addr by 24 bytes by moving
the k_delayed_work attribute into net_if core code.
Then each net_if_addr can be added to the timer handler via a slist.
This does not make much gain if the system has only 1 unicast IPv6
address. It's a nice memory improvment once it has 2+ unicast IPv6
address. Note that having IPv4 enabled along with IPv6 will also see
memory improvements since both IPv6 and IPv4 use the same struct
net_if_addr.
Fixes#8728
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
DAD use dad_count attribute in struct net_if_addr, since DAD is ran on
each and every ipv6 unicast address.
Fixes#8728
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
Allow application to call net_if_ipv4_set_gw_by_index()
and set the gateway if enabled by configuration.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Allow application to call net_if_ipv4_set_netmask_by_index()
and set the netmask if enabled by configuration.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Make IPv4 and IPv6 address addition and removal possible from
userspace app. But allow this only if CONFIG_NET_IF_USERSPACE_ACCESS
By default these operations are not allowed from userspace app.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
move misc/slist.h to sys/slist.h and
create a shim for backward-compatibility.
No functional changes to the headers.
A warning in the shim can be controlled with CONFIG_COMPAT_INCLUDES.
Related to #16539
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Let's filter out on a state parameter.
There is no impact as this function is not used anywhere yet.
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
If the NET_IF_NO_AUTO_START network interface flag is set, then
do not take network interface up during the initialization of the
network interface. The network device driver can set the flag in its
network interface initialization function if needed.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Provide access functions for manipulating network interface flags.
There is no need for the caller of this API to know about the inner
details of the flags.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
The extra check for CONFIG_NET_OFFLOAD is not needed as it
prevents documentation generation for this API.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
In order to follow the BSD socket numbering of the network
interfaces, start numbering from 1. The index 0 is reserved
to mean any interface in BSD socket code.
Fixes#13084
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Make sure that network related functions are always documented.
This means keeping the prototype and possible stub together.
Fixes#12615
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
This commit introduces a concept of mesh-local IPv6 addresses. Such
addresses should only be used for mesh-local communication, therefore
should not be used to communicate with different subnets (i. e.
destinations outside the mesh).
As `addr_type` field already holds different kind of information
(whether address was created automatically/manually) it was not used in
this case.
Instead a mesh_local flag was added, so that we do not lose information
on how address was created. Address with such flag set will only be
selected as a source address automatically if the destination address
is within the same subnet it belongs to.
Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
