[PATCH v3] Introduce separate entity object types for entity privileges.

[Vladimir Davydov]

ACK

On Fri, Aug 17, 2018 at 07:26:57PM +0300, Serge Petrenko wrote:
> When granting or revoking a privilege on an entire entity, id 0 was used
> to indicate the fact that we don't grant a privilege on a single object,
> but on a whole entity. This caused confusion, because for entity USER,
> for example, id 0 is a valid object id (user 'guest' uses it).
> Any non-zero id dedicated to this cause obviously may be confused as well.
> Fix this by creating separate schema_object_types for entities:
> SC_ENTITY_SPACE, SC_ENTITY_USER, etc.
> 
> Closes: #3574
> Prerequisite: #3524
> ---
> https://github.com/tarantool/tarantool/tree/sergepetrenko/gh-3574-whole-entity-types
> https://github.com/tarantool/tarantool/issues/3574
> 
> Changes in v3:
>   - Fix indentation in numerous places.
>   - Change '*' to '' (empty string) in
>     object_id field for _priv and _vpriv
> 
> Changes in v2: 
>   - keep only old syntax for granting access
>     to all entities
>   - add an upgrade script to alter indices of spaces
>     _priv and _vpriv to store 'scalar' in object_id field,
>     and use an asterisk ('*') in object_id to indicate
>     granting on an entire entity.
>   - keep the new entity types in priv_def and use them
>     internally.
> 
>  src/box/alter.cc             |  27 +++++++++++++++++++-
>  src/box/bootstrap.snap       | Bin 1540 -> 1556 bytes
>  src/box/lua/schema.lua       |  58 ++++++++++++++++++++++++++-----------------
>  src/box/lua/upgrade.lua      |  23 +++++++++++++++++
>  src/box/schema.cc            |  11 ++++----
>  src/box/schema.h             |  23 +++++++++--------
>  src/box/schema_def.c         |  21 ++++++++++++++++
>  src/box/schema_def.h         |  18 +++++++++++++-
>  src/box/user.cc              |  27 +++++++++++---------
>  test/box-py/bootstrap.result |  14 +++++------
>  test/box/access.result       |   6 ++---
>  test/box/access_misc.result  |   8 +++---
>  test/box/alter.result        |   8 +++---
>  test/xlog/upgrade.result     |  14 +++++------
>  14 files changed, 180 insertions(+), 78 deletions(-)