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>
While the friend node considers the friendship established as soon as it
sends the friendship offer, the LPN only considers the friendship
established once it receives the first update after its poll. This
update is encrypted with the friendship credentials, which aren't
available, as they're protected by an if (lpn_established()) check.
Changes the check to lpn_waiting_update(), which makes the LPN check its
friendship credentials only when it's expecting a response to a poll
message. This is the only time the friend will send messages encrypted
with the friendship credentials.
This is a regression from #28511.
Signed-off-by: Trond Einar Snekvik <Trond.Einar.Snekvik@nordicsemi.no>
Since first poll request send by lpn use friend security
credentials, so, friend nodes should be able to decrypt with
friend security, even if they have not yet established a friendship.
Signed-off-by: Lingao Meng <menglingao@xiaomi.com>
Missing copy net_idx to ctx, this cause tx subnet not found
or different with rx subnet, when rx subnet net_idx not zero.
Signed-off-by: Lingao Meng <menglingao@xiaomi.com>
Only set friend_cred to true when friendship established and
use friend cred security material decryption successfully.
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>
