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Diffstat (limited to 'contrib/sepgsql/sql/label.sql')
| -rw-r--r-- | contrib/sepgsql/sql/label.sql | 294 |
1 files changed, 294 insertions, 0 deletions
diff --git a/contrib/sepgsql/sql/label.sql b/contrib/sepgsql/sql/label.sql new file mode 100644 index 0000000..76e261b --- /dev/null +++ b/contrib/sepgsql/sql/label.sql @@ -0,0 +1,294 @@ +-- +-- Regression Tests for Label Management +-- + +-- +-- Setup +-- +CREATE TABLE t1 (a int, b text); +INSERT INTO t1 VALUES (1, 'aaa'), (2, 'bbb'), (3, 'ccc'); +CREATE TABLE t2 AS SELECT * FROM t1 WHERE a % 2 = 0; + +CREATE FUNCTION f1 () RETURNS text + AS 'SELECT sepgsql_getcon()' + LANGUAGE sql; + +CREATE FUNCTION f2 () RETURNS text + AS 'SELECT sepgsql_getcon()' + LANGUAGE sql; +SECURITY LABEL ON FUNCTION f2() + IS 'system_u:object_r:sepgsql_trusted_proc_exec_t:s0'; + +CREATE FUNCTION f3 () RETURNS text + AS 'BEGIN + RAISE EXCEPTION ''an exception from f3()''; + RETURN NULL; + END;' LANGUAGE plpgsql; +SECURITY LABEL ON FUNCTION f3() + IS 'system_u:object_r:sepgsql_trusted_proc_exec_t:s0'; + +CREATE FUNCTION f4 () RETURNS text + AS 'SELECT sepgsql_getcon()' + LANGUAGE sql; +SECURITY LABEL ON FUNCTION f4() + IS 'system_u:object_r:sepgsql_nosuch_trusted_proc_exec_t:s0'; + +CREATE FUNCTION f5 (text) RETURNS bool + AS 'SELECT sepgsql_setcon($1)' + LANGUAGE sql; +SECURITY LABEL ON FUNCTION f5(text) + IS 'system_u:object_r:sepgsql_regtest_trusted_proc_exec_t:s0'; + +CREATE TABLE auth_tbl(uname text, credential text, label text); +INSERT INTO auth_tbl + VALUES ('foo', 'acbd18db4cc2f85cedef654fccc4a4d8', 'sepgsql_regtest_foo_t:s0'), + ('var', 'b2145aac704ce76dbe1ac7adac535b23', 'sepgsql_regtest_var_t:s0'), + ('baz', 'b2145aac704ce76dbe1ac7adac535b23', 'sepgsql_regtest_baz_t:s0'); +SECURITY LABEL ON TABLE auth_tbl + IS 'system_u:object_r:sepgsql_secret_table_t:s0'; + +CREATE FUNCTION auth_func(text, text) RETURNS bool + LANGUAGE sql + AS 'SELECT sepgsql_setcon(regexp_replace(sepgsql_getcon(), ''_r:.*$'', ''_r:'' || label)) + FROM auth_tbl WHERE uname = $1 AND credential = $2'; +SECURITY LABEL ON FUNCTION auth_func(text,text) + IS 'system_u:object_r:sepgsql_regtest_trusted_proc_exec_t:s0'; + +CREATE TABLE foo_tbl(a int, b text); +INSERT INTO foo_tbl VALUES (1, 'aaa'), (2,'bbb'), (3,'ccc'), (4,'ddd'); +SECURITY LABEL ON TABLE foo_tbl + IS 'system_u:object_r:sepgsql_regtest_foo_table_t:s0'; + +CREATE TABLE var_tbl(x int, y text); +INSERT INTO var_tbl VALUES (2,'xxx'), (3,'yyy'), (4,'zzz'), (5,'xyz'); +SECURITY LABEL ON TABLE var_tbl + IS 'system_u:object_r:sepgsql_regtest_var_table_t:s0'; + +CREATE TABLE foo_ptbl(o int, p text) PARTITION BY RANGE (o); +CREATE TABLE foo_ptbl_ones PARTITION OF foo_ptbl FOR VALUES FROM ('0') TO ('10'); +CREATE TABLE foo_ptbl_tens PARTITION OF foo_ptbl FOR VALUES FROM ('10') TO ('100'); + +INSERT INTO foo_ptbl VALUES (0, 'aaa'), (9,'bbb'), (10,'ccc'), (99,'ddd'); +SECURITY LABEL ON TABLE foo_ptbl + IS 'system_u:object_r:sepgsql_regtest_foo_table_t:s0'; + +CREATE TABLE var_ptbl(q int, r text) PARTITION BY RANGE (q); +CREATE TABLE var_ptbl_ones PARTITION OF var_ptbl FOR VALUES FROM ('0') TO ('10'); +CREATE TABLE var_ptbl_tens PARTITION OF var_ptbl FOR VALUES FROM ('10') TO ('100'); + +INSERT INTO var_ptbl VALUES (0,'xxx'), (9,'yyy'), (10,'zzz'), (99,'xyz'); +SECURITY LABEL ON TABLE var_ptbl + IS 'system_u:object_r:sepgsql_regtest_var_table_t:s0'; + +-- +-- Tests for default labeling behavior +-- +-- @SECURITY-CONTEXT=unconfined_u:unconfined_r:sepgsql_regtest_user_t:s0 +CREATE TABLE t3 (s int, t text); +INSERT INTO t3 VALUES (1, 'sss'), (2, 'ttt'), (3, 'uuu'); + +-- @SECURITY-CONTEXT=unconfined_u:unconfined_r:sepgsql_regtest_dba_t:s0 +CREATE TABLE t4 (m int, n text); +INSERT INTO t4 VALUES (1,'mmm'), (2,'nnn'), (3,'ooo'); + +-- @SECURITY-CONTEXT=unconfined_u:unconfined_r:sepgsql_regtest_user_t:s0 +CREATE TABLE tpart (o int, p text) PARTITION BY RANGE (o); + +CREATE TABLE tpart_ones PARTITION OF tpart FOR VALUES FROM ('0') TO ('10'); +-- @SECURITY-CONTEXT=unconfined_u:unconfined_r:sepgsql_regtest_dba_t:s0 +CREATE TABLE tpart_tens PARTITION OF tpart FOR VALUES FROM ('10') TO ('100'); + +INSERT INTO tpart VALUES (0, 'aaa'); +INSERT INTO tpart VALUES (9, 'bbb'); +INSERT INTO tpart VALUES (99, 'ccc'); + +SELECT objtype, objname, label FROM pg_seclabels + WHERE provider = 'selinux' AND objtype = 'table' AND objname in ('t1', 't2', 't3', + 'tpart', + 'tpart_ones', + 'tpart_tens') + ORDER BY objname COLLATE "C" ASC; +SELECT objtype, objname, label FROM pg_seclabels + WHERE provider = 'selinux' AND objtype = 'column' AND (objname like 't3.%' + OR objname like 't4.%' + OR objname like 'tpart.%' + OR objname like 'tpart_ones.%' + OR objname like 'tpart_tens.%') + ORDER BY objname COLLATE "C" ASC; + +-- +-- Tests for SECURITY LABEL +-- +-- @SECURITY-CONTEXT=unconfined_u:unconfined_r:sepgsql_regtest_dba_t:s0 +SECURITY LABEL ON TABLE t1 + IS 'system_u:object_r:sepgsql_ro_table_t:s0'; -- ok +SECURITY LABEL ON TABLE t2 + IS 'invalid security context'; -- be failed +SECURITY LABEL ON COLUMN t2 + IS 'system_u:object_r:sepgsql_ro_table_t:s0'; -- be failed +SECURITY LABEL ON COLUMN t2.b + IS 'system_u:object_r:sepgsql_ro_table_t:s0'; -- ok +SECURITY LABEL ON TABLE tpart + IS 'system_u:object_r:sepgsql_ro_table_t:s0'; -- ok +SECURITY LABEL ON TABLE tpart + IS 'invalid security context'; -- failed +SECURITY LABEL ON COLUMN tpart + IS 'system_u:object_r:sepgsql_ro_table_t:s0'; -- failed +SECURITY LABEL ON COLUMN tpart.o + IS 'system_u:object_r:sepgsql_ro_table_t:s0'; -- ok + +-- +-- Tests for Trusted Procedures +-- +-- @SECURITY-CONTEXT=unconfined_u:unconfined_r:sepgsql_regtest_user_t:s0 +SET sepgsql.debug_audit = true; +SET client_min_messages = log; +SELECT f1(); -- normal procedure +SELECT f2(); -- trusted procedure +SELECT f3(); -- trusted procedure that raises an error +SELECT f4(); -- failed on domain transition +SELECT sepgsql_getcon(); -- client's label must be restored + +-- +-- Test for Dynamic Domain Transition +-- + +-- validation of transaction aware dynamic-transition +-- @SECURITY-CONTEXT=unconfined_u:unconfined_r:sepgsql_regtest_superuser_t:s0:c0.c25 +SELECT sepgsql_setcon('unconfined_u:unconfined_r:sepgsql_regtest_superuser_t:s0:c0.c15'); +SELECT sepgsql_getcon(); + +SELECT sepgsql_setcon(NULL); -- failed to reset +SELECT sepgsql_getcon(); + +BEGIN; +SELECT sepgsql_setcon('unconfined_u:unconfined_r:sepgsql_regtest_superuser_t:s0:c0.c12'); +SELECT sepgsql_getcon(); + +SAVEPOINT svpt_1; +SELECT sepgsql_setcon('unconfined_u:unconfined_r:sepgsql_regtest_superuser_t:s0:c0.c9'); +SELECT sepgsql_getcon(); + +SAVEPOINT svpt_2; +SELECT sepgsql_setcon('unconfined_u:unconfined_r:sepgsql_regtest_superuser_t:s0:c0.c6'); +SELECT sepgsql_getcon(); + +SAVEPOINT svpt_3; +SELECT sepgsql_setcon('unconfined_u:unconfined_r:sepgsql_regtest_superuser_t:s0:c0.c3'); +SELECT sepgsql_getcon(); + +ROLLBACK TO SAVEPOINT svpt_2; +SELECT sepgsql_getcon(); -- should be 's0:c0.c9' + +ROLLBACK TO SAVEPOINT svpt_1; +SELECT sepgsql_getcon(); -- should be 's0:c0.c12' + +ABORT; +SELECT sepgsql_getcon(); -- should be 's0:c0.c15' + +BEGIN; +SELECT sepgsql_setcon('unconfined_u:unconfined_r:sepgsql_regtest_superuser_t:s0:c0.c8'); +SELECT sepgsql_getcon(); + +SAVEPOINT svpt_1; +SELECT sepgsql_setcon('unconfined_u:unconfined_r:sepgsql_regtest_superuser_t:s0:c0.c4'); +SELECT sepgsql_getcon(); + +ROLLBACK TO SAVEPOINT svpt_1; +SELECT sepgsql_getcon(); -- should be 's0:c0.c8' +SELECT sepgsql_setcon('unconfined_u:unconfined_r:sepgsql_regtest_superuser_t:s0:c0.c6'); + +COMMIT; +SELECT sepgsql_getcon(); -- should be 's0:c0.c6' + +-- sepgsql_regtest_user_t is not available dynamic-transition, +-- unless sepgsql_setcon() is called inside of trusted-procedure +-- @SECURITY-CONTEXT=unconfined_u:unconfined_r:sepgsql_regtest_user_t:s0:c0.c15 + +-- sepgsql_regtest_user_t has no permission to switch current label +SELECT sepgsql_setcon('unconfined_u:unconfined_r:sepgsql_regtest_user_t:s0'); -- failed +SELECT sepgsql_getcon(); + +-- trusted procedure allows to switch, but unavailable to override MCS rules +SELECT f5('unconfined_u:unconfined_r:sepgsql_regtest_user_t:s0:c0.c7'); -- OK +SELECT sepgsql_getcon(); + +SELECT f5('unconfined_u:unconfined_r:sepgsql_regtest_user_t:s0:c0.c31'); -- Failed +SELECT sepgsql_getcon(); + +SELECT f5(NULL); -- Failed +SELECT sepgsql_getcon(); + +BEGIN; +SELECT f5('unconfined_u:unconfined_r:sepgsql_regtest_user_t:s0:c0.c3'); -- OK +SELECT sepgsql_getcon(); + +ABORT; +SELECT sepgsql_getcon(); + +-- +-- Test for simulation of typical connection pooling server +-- +-- @SECURITY-CONTEXT=unconfined_u:unconfined_r:sepgsql_regtest_pool_t:s0 + +-- we shouldn't allow to switch client label without trusted procedure +SELECT sepgsql_setcon('unconfined_u:unconfined_r:sepgsql_regtest_foo_t:s0'); + +SELECT * FROM auth_tbl; -- failed, no permission to reference + +-- switch to "foo" +SELECT auth_func('foo', 'acbd18db4cc2f85cedef654fccc4a4d8'); + +SELECT sepgsql_getcon(); + +SELECT * FROM foo_tbl; -- OK +SELECT * FROM foo_ptbl; -- OK + +SELECT * FROM var_tbl; -- failed +SELECT * FROM var_ptbl; -- failed + +SELECT * FROM auth_tbl; -- failed + +SELECT sepgsql_setcon(NULL); -- end of session +SELECT sepgsql_getcon(); + +-- the pooler cannot touch these tables directly +SELECT * FROM foo_tbl; -- failed +SELECT * FROM foo_ptbl; -- failed + +SELECT * FROM var_tbl; -- failed +SELECT * FROM var_ptbl; -- failed + +-- switch to "var" +SELECT auth_func('var', 'b2145aac704ce76dbe1ac7adac535b23'); + +SELECT sepgsql_getcon(); + +SELECT * FROM foo_tbl; -- failed +SELECT * FROM foo_ptbl; -- failed + +SELECT * FROM var_tbl; -- OK +SELECT * FROM var_ptbl; -- OK + +SELECT * FROM auth_tbl; -- failed + +SELECT sepgsql_setcon(NULL); -- end of session + +-- misc checks +SELECT auth_func('var', 'invalid credential'); -- not works +SELECT sepgsql_getcon(); + +-- +-- Clean up +-- +-- @SECURITY-CONTEXT=unconfined_u:unconfined_r:sepgsql_regtest_superuser_t:s0-s0:c0.c255 +DROP TABLE IF EXISTS t1 CASCADE; +DROP TABLE IF EXISTS t2 CASCADE; +DROP TABLE IF EXISTS t3 CASCADE; +DROP TABLE IF EXISTS t4 CASCADE; +DROP TABLE IF EXISTS tpart CASCADE; +DROP FUNCTION IF EXISTS f1() CASCADE; +DROP FUNCTION IF EXISTS f2() CASCADE; +DROP FUNCTION IF EXISTS f3() CASCADE; +DROP FUNCTION IF EXISTS f4() CASCADE; +DROP FUNCTION IF EXISTS f5(text) CASCADE; |