Changes ERR to WARN message when relay buffers
run out, as this is not really an error but a
consequence of high traffic.
Signed-off-by: Omkar Kulkarni <omkar.kulkarni@nordicsemi.no>
When local node poweroff and power on again, will
receive iv update but within 96hours.
When 96h after, due to cache, we can't process this
beacon any more.
Signed-off-by: Lingao Meng <menglingao@xiaomi.com>
According Mesh Profile 3.10.6 IV Index Recovery procedure
Upon receiving and successfully authenticating a Secure Network
beacon for a primary subnet whose IV Index is 1 or more higher
than the current known IV Index, the node shall set its current
IV Index and its current IV Update procedure state from the
values in this Secure Network beacon.
Signed-off-by: Lingao Meng <menglingao@xiaomi.com>
After PR: https://github.com/zephyrproject-rtos/zephyr/pull/38296
If we receive the second recovery after 192 hours after the first
recovery, we may still not be able to perform any recovery, even
if the IV Index differs by 42, because the `ivi_was_recovered` flag
will only be cleared during the iv update.
But still May lose iv update, as we did the first iv recovery.
This patch by checking the iv duration, if 192h later, auto clear
`ivi_was_recovered` flag.
Signed-off-by: Lingao Meng <menglingao@xiaomi.com>
It seems that if the IV update is missed, a node cannot
recover it until the IV index has increased to a value
greater than Node's Last known IV + 1.
Signed-off-by: Ingar Kulbrandstad <ingar.kulbrandstad@nordicsemi.no>
Implements the Bluetooth appropriate language mapping for the Bluetooth
mesh subsystem.
Changes the following terms:
- Master security credentials -> Flooding security credentials
- Whitelist filter -> Accept filter
- Blacklist filter -> Reject filter
- Removes CDB's NODE_BLACKLISTED, which was not in use.
Signed-off-by: Trond Einar Snekvik <Trond.Einar.Snekvik@nordicsemi.no>
This ensures that all mesh settings were removed from persistent storage
after node reset.
Signed-off-by: Pavel Vasilyev <pavel.vasilyev@nordicsemi.no>
When device is first provisioned with IV Update
flag is set to 0, it should wait for minimum of
96 hours before going into IV Update In Progress
state. Such limit does not apply, if device is
provisioned with IV Update flag is set to 1.
Signed-off-by: Omkar Kulkarni <omkar.kulkarni@nordicsemi.no>
Adds defines for ECC public keys, private keys, DH keys and key
coordinates. Replaces raw numbers throughout.
Signed-off-by: Trond Einar Snekvik <Trond.Einar.Snekvik@nordicsemi.no>
Added bt_mesh_msg_send() which can be used by the application to
directly send model layer messages without local instantiation of
related models. Also added bt_mesh_msg_cb_set() which allows the
application to recieve mesh model layer messages without local
instantiation of related models.
Added bt_mesh_has_addr() which returns a bool. For unicast addresses,
this returns whether or not bt_mesh_elem_find() was successfull. If the
above mentioned bt_mesh_msg_cb_set() has been used by the application to
set a message callback, this returns true so that the stack attempts to
push every model message up to the application via the callback. If no
callback has been set, group addresses are searched to see if the stack
should pass the message up the stack to an instantiated model.
These changes allow applications that do not or can not instantiate
models to interface with models in a mesh network. This is applicable to
applications which act as a Bluetooth mesh gateway, sniffer, debugger,
network monitoring, non-mesh relay/extender, etc.
In app_keys.c friend.c net.c bt_mesh_elem_find() is used only to
determine the existance of an address. The full return value of
bt_mesh_elem_find() is unecessary and so was replaced by the above
mentioned bt_mesh_has_addr() function in these instances.
Simplified bt_mesh_elem_find() by removing the search through group
address. Since the above mentioned bt_mesh_has_addr() function handles
instances where group addresses must be searched, it was no longer
necessary to preform this search in this function.
Signed-off-by: Bud Wandinger <bud@budkoembedded.ca>
Align the capitalization of the term "Bluetooth Mesh" to Bluetooth mesh"
in the documentation. This is done to to match the new updated naming
convention done in Bluetooth SIG. In the upcoming spec versions, it its
used "Bluetooth mesh" with the lower case convention.
Signed-off-by: Ingar Kulbrandstad <ingar.kulbrandstad@nordicsemi.no>
Zephyr Bluetooth Mesh did not check whether the proxy message
was actually sent out, so that the response message could
not be received during reset. It did not solve the status
callback of the proxy sending message, so a new problem was
introduced after PR(#28457) merged.
bt_mesh_prov_send(&buf, public_key_sent))
This PR will try to solve the above problem, and will fix
the problem due to thread competition, and PR(#26668) will
not be necessary.
Compared with PR(#30138), it no longer consumes extra RAM
space and supports synchronization of group addresses
Signed-off-by: Lingao Meng <menglingao@xiaomi.com>
The network layer previously decided to use the friend credentials if
there was an established friendship. During the friendship setup phase,
the friendship is not considered established until the LPN receives the
first friend poll. Before this happens, the LPN should send a friend
poll message, encrypted with the friendship credentials. This wrongly
gets encrypted with the master credentials.
Change the decision point to whether the LPN has selected a friend,
which happens after the friend offer, and before the friend poll. This
will remain set for the duration of the friendship.
Signed-off-by: Trond Einar Snekvik <Trond.Einar.Snekvik@nordicsemi.no>
Switch to the new API in friend, net and main.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
Signed-off-by: Trond Einar Snekvik <Trond.Einar.Snekvik@nordicsemi.no>
If CONFIG_BT_MESH_SEQ_STORE_RATE is 1, the check in store_seq can be
reduced to a simple if (false), and the modulo code does not need to be
included in the build.
Fixes#33036.
Signed-off-by: Trond Einar Snekvik <Trond.Einar.Snekvik@nordicsemi.no>
After #31176, the network would get stored immediately in
bt_mesh_net_create, causing the address and devicekey to get stored as
their zero-initialized version, as they're only being set in the
bt_mesh_comp_provision call, which fires after.
Fixes#32067.
Signed-off-by: Trond Einar Snekvik <Trond.Einar.Snekvik@nordicsemi.no>
As network_decode needs a target buffer for decoding, the max PDU length
must be checked to prevent overflow on the target buffer. When receiving
a proxy configuration message with excessive length, there's no previous
check for this.
Also pulls the NET PDU length defines out into net.h, so they can be
used when defining the target buffers.
Signed-off-by: Trond Einar Snekvik <Trond.Einar.Snekvik@nordicsemi.no>
The mesh settings.c module is a giant piece of code responsible for
storing the mesh stack configuration. Such approach makes it difficult
to control the data to be stored, breaks the stack modules'
encapsulation by forcing them to reveal the internal kitchen, which
leads to unpleasant issues such as #19799.
This commit moves the responsibility of storing the configuration
to corresponding modules while keeping control of the moment of storing
the configuration and of starting the stack after the settingss loading
is completed.
This doesn't introduce any abstraction between the mesh settings.c and
other modules as it will add more complexity and overhead than necessary
for the actual task.
Fixes#19850
Signed-off-by: Pavel Vasilyev <pavel.vasilyev@nordicsemi.no>
Bluetooth Mesh require minimum limit time to enter iv update
state or return to iv nornal state.
For Zephyr bluetooth mesh implementation, use`ivu_duration`
type `uint8_t` to represent current time, but if the time is
more than 255 hours, there will be problems due to the
overflow of 8-bit unassigned variables.
Signed-off-by: Lingao Meng <menglingao@xiaomi.com>
Adds check for TTL max in the transport send functions, and moves
setting of default TTL to transport.
Fixes#29855.
Signed-off-by: Trond Einar Snekvik <Trond.Einar.Snekvik@nordicsemi.no>
Moves mesh feature configuration to a separate module, deprecating the
bt_mesh_cfg_srv structure. The initial values for the features should
now be enabled through KConfig, where new config entries have been added
for each feature.
This removes the upward dependency on the config server from the core
stack, and makes the config server a pure frontend for the configuration
states, as all spec mandated behavior around the feature states is now
encapsulated.
Signed-off-by: Trond Einar Snekvik <Trond.Einar.Snekvik@nordicsemi.no>
If low power node publish with unicast address other
than friend address, the friend node should relayed
this message to all network interface.
When Proxy feature enabled, message from gatt bearer should
relay to adv bearer even relay feature disabled.
Fixes: #29544
Signed-off-by: Lingao Meng <mengabc1086@gmail.com>
This is a major refactoring of the handling of the cryptographic
material of both the network and transport layers. The aim is to
encapsulate the key object manipulation, and improve overall modularity.
Pulls Applications and Subnets out of the bt_mesh and into separate
modules, with static storage types on the data. This has several
side-effects:
- The Config Server no longer operates directly on the bt_mesh.subs and
bt_mesh.apps lists, but goes through a public configuration interface,
following the pattern set in #27908.
- All iteration through the keys is done through iteration APIs
- Key resolution on RX and TX is centralized.
- Changes to the keys triggers events the other modules can register
handlers for.
- Friendship credentials are stored in the lpn and friend structures.
Part of #27842.
Signed-off-by: Trond Einar Snekvik <Trond.Einar.Snekvik@nordicsemi.no>
Changes the local network interface to exclusively handle packets for
the local interface, duplicating the buffers in the process.
The loopback mechanism now operates its own packet pool for the local
interface queue. The loopback is moved ahead of encryption, allowing the
local interface packets to go back up the stack without network crypto,
saving a full round of encrypt/decrypt for self-send.
Packets for group addresses the local node subscribes to are now
duplicated, with one unencrypted variant going into the network
queue, and the network bound packets following the regular path to the
advertiser.
Introduces one new configuration for setting the number of loopback
buffers.
Signed-off-by: Trond Einar Snekvik <Trond.Einar.Snekvik@nordicsemi.no>
-Wimplicit-fallthrough=2 requires a fallthrough comment or a compiler
to tells gcc that this happens intentionally.
Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>
The hardcoded value was arbitrary and interfered with message cache
mechanism causing invalid behavior and PTS test to fail.
Fixes MESH/NODE/RLY/BV-02-C.
Signed-off-by: Michał Narajowski <michal.narajowski@codecoup.pl>
According to Mesh Profile Test Specification we should still
relay messages with DST address that is RFU.
Fixes MESH/NODE/RLY/BV-01-C.
Signed-off-by: Michał Narajowski <michal.narajowski@codecoup.pl>
Allocates segmented message buffers as slabs in a common pool for RX and
TX. This reduces memory requirements for both TX and RX, as TX messages
can be stored without the network and advertising buffer overhead, and
RX can use only the slabs it needs, instead of allocating a full size
segmented message. This approach also removes the need for decrypting
the segments for each retransmission, reducing overall processing load.
Slab based segmentation for tx also introduces queuing of segmented
messages, which allows the application layer to send multiple messages
to the same destination without violating Bluetooth Mesh specification
v1.0.1, section 3.6.4.1. This mechanism is provided through a flag that
blocks segmented messages to a destination which a message is already
being sent to until the previous message finishes.
This changes the SDU size configuration to a symmetrical
RX_SEG_MAX/TX_SEG_MAX pair of configurations, plus a new segment pool
side configuration. It also removes the binding between the TX_SEG_MAX
config and the advertising buffers, reducing the minimum advertising
buffer count from 6 to 3.
Signed-off-by: Trond Einar Snekvik <Trond.Einar.Snekvik@nordicsemi.no>
Changes the behavior of the message cache to optimize for cache
capacity. Previously, the message cache's primary function was to avoid
decrypting messages multiple times, although the cache's main function
in the spec is to avoid message rebroadcasting. Optimizing for minimal
decryption causes us to fill the network cache faster, which in turn
causes more cache misses, potentially outweighing the advantage.
Now stores src + seq in message cache instead of field hash value. This
cuts cache size in two, while including more of the sequence number than
before.
Adds messages to the cache only after the packet is successfully
decrypted. This reduces noise in the cache, and ensures that no
invalid deobfuscations are added.
Additionally, this fixes a bug where multiple calls to net_decrypt with
the same packet failed, as the message cache found its own entry from
the previous call.
Signed-off-by: Trond Einar Snekvik <Trond.Einar.Snekvik@nordicsemi.no>
Resend transport segments for groups on the advertiser interface, even
if a connected proxy node holds the group.
Signed-off-by: Trond Einar Snekvik <Trond.Einar.Snekvik@nordicsemi.no>
Backport of https://github.com/apache/mynewt-nimble/pull/724
Mesh spec 1.0.1 changes proxy disabling behavior to only affect the
relaying from proxy nodes. Previously, disabling proxy would shut down
all proxy and node activity.
Tweaks from the original commit:
- Removed redundant call to bt_mesh_adv_update() in gatt_proxy_set()
- Removed invalid ref to 4.2.11.1 in node_identity_set()
---
According to Mesh Profile Spec 1.0.1, Section 4.2.11:
"If the Proxy feature is disabled, a GATT client device can connect
over GATT to that node for configuration and control. Messages from
the GATT bearer are not relayed to the advertising bearer."
Moreover some notes have been removed from the spec compared to
version 1.0:
Mesh Profile Spec 1.0, Section 4.2.11:
"Upon transition from GATT Proxy state 0x01 to GATT Proxy state 0x00
the GATT Bearer Server shall disconnect all GATT Bearer Clients."
"The Configuration Client should turn off the Proxy state as the last
step in the configuration process."
Mesh Profile Spec 1.0, Section 4.2.11.1:
"When the GATT Proxy state is set to 0x00, the Node Identity state
for all subnets shall be set to 0x00 and shall not be changed."
Signed-off-by: Trond Einar Snekvik <Trond.Einar.Snekvik@nordicsemi.no>
Refactor the handling of network nodes and their keys into a separate
Mesh Configuration Database (CDB). This, not only creates a separation
of the local node and the other nodes, but also makes it possible to
implement functions to manage the whole, or at least parts of the mesh
network.
Signed-off-by: Tobias Svehagen <tobias.svehagen@gmail.com>
Use 24-bit functions for byteorder and net_buf in order to make the
byteorder used more readable.
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
Make it possible to provision devices over advertising bearer (PB-ADV).
Many messages in the provisioning protocol are the same for provisioner
and device so much of the code could be reused by only changing when
they are expected to arrive.
This introduces to concept of local and remote device keys. The models
for cfg_cli and cfg_srv have been updated to reflect this concept. Both
the send and receive path in the transport layer have been updated to
support encrypting/decrypting with local and remote device keys.
When a node has been provisioned it is stored in bt_mesh_net.nodes. If
CONFIG_BT_SETTINGS is enabled, they are also saved to settings. If the
callback node_added in bt_mesh_prov has been set, it will be called for
every node that gets provisioned. This includes when they are retrieved
from settings.
The configuration CONFIG_BT_MESH_NODE_COUNT controls how many nodes that
can be provisioned.
Signed-off-by: Tobias Svehagen <tobias.svehagen@gmail.com>
Provides utility function for parsing network headers outside of the
network layer. The primary intended use-case is friendship.
Signed-off-by: Trond Einar Snekvik <Trond.Einar.Snekvik@nordicsemi.no>
Static variables and functions don't need #ifdefs if the code calling
them is using IS_ENABLED(). If IS_ENABLED() evaluates to false the
compiler will strip out all the static entities.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Fix calling bt_hex and bt_addr_le_str multiple times in the same logging
call could result in string overwritten since log_strdup is not
guaranteed to duplicate the string buffer in all logging configurations.
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
When in Low Power mode an LPN may receive messages sent by nodes other
than its friend during its brief receive window. These messages get
rejected by the transport layer. At some point in the future the LPN
will receive these messages from its friend, however they will have
already been added to the network message cache earlier.
When the transport layer rejects a message due to it being received from
a non-friend node while in Low Power mode it must be removed from the
network message cache so that it can be correctly received from its
friend in the future.
Fixes#17809
Signed-off-by: Rich Barlow <rich@bennellick.com>
The commit 1c7b668804 tried to fix
resending segments to the GATT bearer, however it got the buffer
refernce counting wrong. The bt_mesh_net_resend() function doesn't
own a reference to the buffer, i.e. it's not responsible for unrefing
it. E.g. bt_mesh_adv_send() takes its own reference.
What was missing however was the handling of the callbacks. Use the
recently introduced send_cb_finalize() helper to make sure they're
called.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
