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[Launchpad Bug Tracker <1464806@xxxxxxxxxxxxxxxxxx>]

[Expired for neutron because there has been no activity for 60 days.]

** Changed in: neutron
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/1464806

Title:
  tenant_id is set to ''(empty string) by l3 plugin

Status in neutron:
  Expired

Bug description:
  L3 plugin code (neutorn/db/l3_*_db.py) calls l2 plugin with tenant_id=''(empty string) for creation port and subnet for internal use.
  e.g. gateway port, floating ip port, port used by dvr.

  This is ugly hack and some L2 plugin or ML2 mechanism driver doesn't expect it and be confused with it.
  It is better to fix it.

  tenant_id=''(empty string) is used for those purpose.
  - prevent (non-admin) user from updating
    NeutronDbPluginV2._enforce_device_owner_not_router_intf_or_device_id
  - prevent (non-admin) user from deleting
   NeutronDbPluginV2 ._delete_port
  - don't count for quota
    Controller.create

  This dirty hack was firstly introduced by
  the changeset of a7326a947bc0b30778e06acd772dd38bcb28d96d
  the change id of Ice72fc6d3b1c613d596c037818ed66d7e9ed841d
  with only one line comment. The followers just use it without any special attention/comments.

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