[Bug 2014954] Re: Backport Intel Mutual Authentications - FCC Lock

[Atlas Yu]

refined debdiff

** Patch removed: "libmbim_1.28.0-1~ubuntu20.04.2.debdiff"
   https://bugs.launchpad.net/ubuntu/+source/libmbim/+bug/2014954/+attachment/5659790/+files/libmbim_1.28.0-1~ubuntu20.04.2.debdiff

** Patch added: "libmbim_1.28.0-1~ubuntu20.04.2.debdiff"
   https://bugs.launchpad.net/ubuntu/+source/libmbim/+bug/2014954/+attachment/5676943/+files/libmbim_1.28.0-1~ubuntu20.04.2.debdiff

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https://bugs.launchpad.net/bugs/2014954

Title:
  Backport Intel Mutual Authentications - FCC Lock

Status in OEM Priority Project:
  Confirmed
Status in libmbim package in Ubuntu:
  New

Bug description:
  [ Impact ]

  There exist no formal API to do the FCC unlock procedure[1] in the
  latest version of the modemmanger.

  But there is a merged commit[2] that provide this functionality for
  intel WWAN cards in the upstream project.

  Lenovo have several laptops using the Intel WWAN cards, and Lenovo are
  struggling to give a decent way to run the FCC unlock service without
  this.

  [ Test Plan ]

  OEM enablement engineers and Lenovo engineers will help to test if the
  FCC unlock would work on certain laptops with the help of a custom
  package[1] provided by Lenovo which contains the FCC unlock script.

  [ Where problems could occur ]

  This is a completely new feature to support Intel WWAN cards mutal
  authentication, which does not affect other existing features.

  But the feature itself might have bugs and glitches since it is a
  brand new one and is not widely tested by the laptop vendors, still it
  is better than nothing.

  [ Other Info ]

  [1] FCC unlock procedure: https://modemmanager.org/docs/modemmanager/fcc-unlock/
  [2] intel-mutual-authentication: new service, fcc-lock: https://gitlab.freedesktop.org/mobile-broadband/libmbim/-/merge_requests/157
    - when the device is first shipped or comes out of the factory,
      it should be protected with a lock till the device reaches
      the end user. This FCC lock feature will ensure the device
      is secured till its unlocked.

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