tree 6f623ae7f781eac13613a684db455bc0a3a67357
parent 26babd7734ad2f5cf997a89daa56abb7caeef167
author Ani Ramakrishnan <aniramakri@google.com> 1787348203 +0000
committer CQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com> 1788556992 -0700

rust/bt-mcs: Handle GATT read requests for mandatory characteristics

Implement GATT read request handling for the mandatory characteristics
defined in the MCS spec.

Maintain a local `McsLocalState` holding mandatory characteristic values
initialized to spec-defined defaults. Some of these may be specified by
the builder.

Process GATT read requests on the MCS Server by responding with
appropriate byte representations, handling long-read offsets, and
returning `GattError::ReadNotPermitted` or `GattError::InvalidOffset`
where appropriate.

Bug: 540400364
Test: cargo test -p bt-mcs, ./presubmit.sh
Change-Id: Ic4b6c989b0e82850a6e521f57a13abc1b7ee644f
Reviewed-on: https://bluetooth-review.googlesource.com/c/bluetooth/+/3720