Re: (forw) [bruce@xxxxxxxxxx: [ANNOUNCE] Need help on possible PG 8.4 security features]

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James Morris wrote:
On Tue, 27 Jan 2009, KaiGai Kohei wrote:

At the LCA example, I assigned sepgsql_fixed_table_t on the
"drink" table, so newly inserted tuples also inherit it.

Can this type be anything defined by the admin?

YES, as follows:

CREATE TABLE drink (
  id   integer primary key,
  name text security_label = 'system_u:object_r:example_foo_t',
  price integer
) security_label = 'system_u:object_r:example_var_t';

It enables to create a table/columns with specified context.

and,

INSERT INTO drink (security_label, id, name, price)
  VALUES ('system_u:object_r:example_baz_t', 1, 'coffee', 120);

It enables to insert a tuple with specified context.

(*) security_label is a system column, so it automatically
    generated for all tables, and not expanded by "SELECT *".

Why is MCS being used in the example? Would anything stop the examples using types such as "marketing_department_t" and "research_department_t", with no MCS ?

It is possible, if we make an example policy module.

Thanks,
--
KaiGai Kohei <kaigai@xxxxxxxxxxxx>

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