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net: ip: Introduce mesh_local flag #12731

Merged
merged 2 commits into from
Jan 29, 2019
Merged

net: ip: Introduce mesh_local flag #12731

merged 2 commits into from
Jan 29, 2019

Commits on Jan 28, 2019

  1. net: ip: Introduce mesh_local address flag 

    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>
    @rlubos
    rlubos committed Jan 28, 2019
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  2. net: openthread: Set mesh_local flag in mesh-local OT addresses 

    Mark automatically and statically configured mesh-local addresses
with mesh_local flag, so that they are not used as a source for
off-mesh destinations.

Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
    @rlubos
    rlubos committed Jan 28, 2019
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