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4f66c93f61
Use SELinux "db_table: { truncate }" to check if permission is granted to
TRUNCATE. Update example SELinux policy to grant needed permission for
TRUNCATE. Add new regression test to demonstrate a positive and negative
cases. Test will only be run if the loaded SELinux policy has the
"db_table: { truncate }" permission. Makes use of recent commit which added
object TRUNCATE hook. Patch by Yuli Khodorkovskiy with minor
editorialization by me. Not back-patched because the object TRUNCATE hook
was not.
Author: Yuli Khodorkovskiy
Reviewed-by: Joe Conway
Discussion: https://postgr.es/m/CAFL5wJcomybj1Xdw7qWmPJRpGuFukKgNrDb6uVBaCMgYS9dkaA%40mail.gmail.com
47 lines
1.4 KiB
Plaintext
47 lines
1.4 KiB
Plaintext
--
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-- Regression Test for TRUNCATE
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--
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--
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-- Setup
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--
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CREATE TABLE julio_claudians (name text, birth_date date);
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SECURITY LABEL ON TABLE julio_claudians IS 'system_u:object_r:sepgsql_regtest_foo_table_t:s0';
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INSERT INTO julio_claudians VALUES ('Augustus', 'September 23, 63 BC'), ('Tiberius', 'November 16, 42 BC'), ('Caligula', 'August 31, 0012'), ('Claudius', 'August 1, 0010'), ('Nero', 'December 15, 0037');
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CREATE TABLE flavians (name text, birth_date date);
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SECURITY LABEL ON TABLE flavians IS 'system_u:object_r:sepgsql_table_t:s0';
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INSERT INTO flavians VALUES ('Vespasian', 'November 17, 0009'), ('Titus', 'December 30, 0039'), ('Domitian', 'October 24, 0051');
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SELECT * from julio_claudians;
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name | birth_date
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----------+---------------
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Augustus | 09-23-0063 BC
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Tiberius | 11-16-0042 BC
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Caligula | 08-31-0012
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Claudius | 08-01-0010
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Nero | 12-15-0037
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(5 rows)
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SELECT * from flavians;
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name | birth_date
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-----------+------------
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Vespasian | 11-17-0009
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Titus | 12-30-0039
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Domitian | 10-24-0051
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(3 rows)
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TRUNCATE TABLE julio_claudians; -- ok
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TRUNCATE TABLE flavians; -- failed
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ERROR: SELinux: security policy violation
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SELECT * from julio_claudians;
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name | birth_date
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------+------------
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(0 rows)
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SELECT * from flavians;
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name | birth_date
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-----------+------------
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Vespasian | 11-17-0009
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Titus | 12-30-0039
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Domitian | 10-24-0051
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(3 rows)
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