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510 lines
18 KiB
Plaintext
510 lines
18 KiB
Plaintext
--
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-- Regression Tests for Label Management
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--
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--
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-- Setup
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--
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CREATE TABLE t1 (a int, b text);
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INSERT INTO t1 VALUES (1, 'aaa'), (2, 'bbb'), (3, 'ccc');
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SELECT * INTO t2 FROM t1 WHERE a % 2 = 0;
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CREATE FUNCTION f1 () RETURNS text
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AS 'SELECT sepgsql_getcon()'
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LANGUAGE sql;
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CREATE FUNCTION f2 () RETURNS text
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AS 'SELECT sepgsql_getcon()'
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LANGUAGE sql;
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SECURITY LABEL ON FUNCTION f2()
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IS 'system_u:object_r:sepgsql_trusted_proc_exec_t:s0';
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CREATE FUNCTION f3 () RETURNS text
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AS 'BEGIN
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RAISE EXCEPTION ''an exception from f3()'';
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RETURN NULL;
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END;' LANGUAGE plpgsql;
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SECURITY LABEL ON FUNCTION f3()
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IS 'system_u:object_r:sepgsql_trusted_proc_exec_t:s0';
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CREATE FUNCTION f4 () RETURNS text
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AS 'SELECT sepgsql_getcon()'
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LANGUAGE sql;
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SECURITY LABEL ON FUNCTION f4()
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IS 'system_u:object_r:sepgsql_nosuch_trusted_proc_exec_t:s0';
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CREATE FUNCTION f5 (text) RETURNS bool
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AS 'SELECT sepgsql_setcon($1)'
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LANGUAGE sql;
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SECURITY LABEL ON FUNCTION f5(text)
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IS 'system_u:object_r:sepgsql_regtest_trusted_proc_exec_t:s0';
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CREATE TABLE auth_tbl(uname text, credential text, label text);
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INSERT INTO auth_tbl
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VALUES ('foo', 'acbd18db4cc2f85cedef654fccc4a4d8', 'sepgsql_regtest_foo_t:s0'),
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('var', 'b2145aac704ce76dbe1ac7adac535b23', 'sepgsql_regtest_var_t:s0'),
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('baz', 'b2145aac704ce76dbe1ac7adac535b23', 'sepgsql_regtest_baz_t:s0');
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SECURITY LABEL ON TABLE auth_tbl
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IS 'system_u:object_r:sepgsql_secret_table_t:s0';
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CREATE FUNCTION auth_func(text, text) RETURNS bool
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LANGUAGE sql
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AS 'SELECT sepgsql_setcon(regexp_replace(sepgsql_getcon(), ''_r:.*$'', ''_r:'' || label))
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FROM auth_tbl WHERE uname = $1 AND credential = $2';
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SECURITY LABEL ON FUNCTION auth_func(text,text)
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IS 'system_u:object_r:sepgsql_regtest_trusted_proc_exec_t:s0';
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CREATE TABLE foo_tbl(a int, b text);
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INSERT INTO foo_tbl VALUES (1, 'aaa'), (2,'bbb'), (3,'ccc'), (4,'ddd');
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SECURITY LABEL ON TABLE foo_tbl
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IS 'system_u:object_r:sepgsql_regtest_foo_table_t:s0';
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CREATE TABLE var_tbl(x int, y text);
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INSERT INTO var_tbl VALUES (2,'xxx'), (3,'yyy'), (4,'zzz'), (5,'xyz');
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SECURITY LABEL ON TABLE var_tbl
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IS 'system_u:object_r:sepgsql_regtest_var_table_t:s0';
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--
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-- Tests for default labeling behavior
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--
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SELECT sepgsql_getcon(); -- confirm client privilege
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sepgsql_getcon
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-----------------------------------------------------
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unconfined_u:unconfined_r:sepgsql_regtest_user_t:s0
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(1 row)
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CREATE TABLE t3 (s int, t text);
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INSERT INTO t3 VALUES (1, 'sss'), (2, 'ttt'), (3, 'uuu');
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SELECT sepgsql_getcon(); -- confirm client privilege
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sepgsql_getcon
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----------------------------------------------------
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unconfined_u:unconfined_r:sepgsql_regtest_dba_t:s0
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(1 row)
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CREATE TABLE t4 (m int, n text);
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INSERT INTO t4 VALUES (1,'mmm'), (2,'nnn'), (3,'ooo');
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SELECT objtype, objname, label FROM pg_seclabels
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WHERE provider = 'selinux' AND objtype = 'table' AND objname in ('t1', 't2', 't3');
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objtype | objname | label
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---------+---------+-----------------------------------------------
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table | t1 | unconfined_u:object_r:sepgsql_table_t:s0
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table | t2 | unconfined_u:object_r:sepgsql_table_t:s0
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table | t3 | unconfined_u:object_r:user_sepgsql_table_t:s0
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(3 rows)
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SELECT objtype, objname, label FROM pg_seclabels
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WHERE provider = 'selinux' AND objtype = 'column' AND (objname like 't3.%' OR objname like 't4.%');
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objtype | objname | label
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---------+-------------+-----------------------------------------------
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column | t3.t | unconfined_u:object_r:user_sepgsql_table_t:s0
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column | t3.s | unconfined_u:object_r:user_sepgsql_table_t:s0
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column | t3.ctid | unconfined_u:object_r:user_sepgsql_table_t:s0
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column | t3.xmin | unconfined_u:object_r:user_sepgsql_table_t:s0
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column | t3.cmin | unconfined_u:object_r:user_sepgsql_table_t:s0
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column | t3.xmax | unconfined_u:object_r:user_sepgsql_table_t:s0
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column | t3.cmax | unconfined_u:object_r:user_sepgsql_table_t:s0
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column | t3.tableoid | unconfined_u:object_r:user_sepgsql_table_t:s0
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column | t4.n | unconfined_u:object_r:sepgsql_table_t:s0
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column | t4.m | unconfined_u:object_r:sepgsql_table_t:s0
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column | t4.ctid | unconfined_u:object_r:sepgsql_sysobj_t:s0
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column | t4.xmin | unconfined_u:object_r:sepgsql_sysobj_t:s0
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column | t4.cmin | unconfined_u:object_r:sepgsql_sysobj_t:s0
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column | t4.xmax | unconfined_u:object_r:sepgsql_sysobj_t:s0
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column | t4.cmax | unconfined_u:object_r:sepgsql_sysobj_t:s0
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column | t4.tableoid | unconfined_u:object_r:sepgsql_sysobj_t:s0
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(16 rows)
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--
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-- Tests for SECURITY LABEL
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--
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SELECT sepgsql_getcon(); -- confirm client privilege
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sepgsql_getcon
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----------------------------------------------------
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unconfined_u:unconfined_r:sepgsql_regtest_dba_t:s0
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(1 row)
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SECURITY LABEL ON TABLE t1
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IS 'system_u:object_r:sepgsql_ro_table_t:s0'; -- ok
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SECURITY LABEL ON TABLE t2
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IS 'invalid security context'; -- be failed
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ERROR: SELinux: invalid security label: "invalid security context"
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SECURITY LABEL ON COLUMN t2
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IS 'system_u:object_r:sepgsql_ro_table_t:s0'; -- be failed
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ERROR: column name must be qualified
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SECURITY LABEL ON COLUMN t2.b
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IS 'system_u:object_r:sepgsql_ro_table_t:s0'; -- ok
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--
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-- Tests for Trusted Procedures
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--
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SELECT sepgsql_getcon(); -- confirm client privilege
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sepgsql_getcon
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-----------------------------------------------------
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unconfined_u:unconfined_r:sepgsql_regtest_user_t:s0
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(1 row)
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SET sepgsql.debug_audit = true;
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SET client_min_messages = log;
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SELECT f1(); -- normal procedure
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LOG: SELinux: allowed { execute } scontext=unconfined_u:unconfined_r:sepgsql_regtest_user_t:s0 tcontext=unconfined_u:object_r:sepgsql_proc_exec_t:s0 tclass=db_procedure name="public.f1()"
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LOG: SELinux: allowed { execute } scontext=unconfined_u:unconfined_r:sepgsql_regtest_user_t:s0 tcontext=system_u:object_r:sepgsql_proc_exec_t:s0 tclass=db_procedure name="pg_catalog.sepgsql_getcon()"
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CONTEXT: SQL function "f1" statement 1
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f1
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-----------------------------------------------------
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unconfined_u:unconfined_r:sepgsql_regtest_user_t:s0
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(1 row)
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SELECT f2(); -- trusted procedure
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LOG: SELinux: allowed { execute } scontext=unconfined_u:unconfined_r:sepgsql_regtest_user_t:s0 tcontext=system_u:object_r:sepgsql_trusted_proc_exec_t:s0 tclass=db_procedure name="public.f2()"
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LOG: SELinux: allowed { entrypoint } scontext=unconfined_u:unconfined_r:sepgsql_regtest_user_t:s0 tcontext=system_u:object_r:sepgsql_trusted_proc_exec_t:s0 tclass=db_procedure name="function f2()"
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LOG: SELinux: allowed { transition } scontext=unconfined_u:unconfined_r:sepgsql_regtest_user_t:s0 tcontext=unconfined_u:unconfined_r:sepgsql_trusted_proc_t:s0 tclass=process
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LOG: SELinux: allowed { execute } scontext=unconfined_u:unconfined_r:sepgsql_trusted_proc_t:s0 tcontext=system_u:object_r:sepgsql_proc_exec_t:s0 tclass=db_procedure name="pg_catalog.sepgsql_getcon()"
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CONTEXT: SQL function "f2" statement 1
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f2
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-----------------------------------------------------
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unconfined_u:unconfined_r:sepgsql_trusted_proc_t:s0
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(1 row)
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SELECT f3(); -- trusted procedure that raises an error
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LOG: SELinux: allowed { execute } scontext=unconfined_u:unconfined_r:sepgsql_regtest_user_t:s0 tcontext=system_u:object_r:sepgsql_trusted_proc_exec_t:s0 tclass=db_procedure name="public.f3()"
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LOG: SELinux: allowed { entrypoint } scontext=unconfined_u:unconfined_r:sepgsql_regtest_user_t:s0 tcontext=system_u:object_r:sepgsql_trusted_proc_exec_t:s0 tclass=db_procedure name="function f3()"
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LOG: SELinux: allowed { transition } scontext=unconfined_u:unconfined_r:sepgsql_regtest_user_t:s0 tcontext=unconfined_u:unconfined_r:sepgsql_trusted_proc_t:s0 tclass=process
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ERROR: an exception from f3()
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SELECT f4(); -- failed on domain transition
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LOG: SELinux: allowed { execute } scontext=unconfined_u:unconfined_r:sepgsql_regtest_user_t:s0 tcontext=system_u:object_r:sepgsql_nosuch_trusted_proc_exec_t:s0 tclass=db_procedure name="public.f4()"
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LOG: SELinux: allowed { entrypoint } scontext=unconfined_u:unconfined_r:sepgsql_regtest_user_t:s0 tcontext=system_u:object_r:sepgsql_nosuch_trusted_proc_exec_t:s0 tclass=db_procedure name="function f4()"
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LOG: SELinux: denied { transition } scontext=unconfined_u:unconfined_r:sepgsql_regtest_user_t:s0 tcontext=unconfined_u:unconfined_r:sepgsql_regtest_nosuch_t:s0 tclass=process
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ERROR: SELinux: security policy violation
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SELECT sepgsql_getcon(); -- client's label must be restored
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LOG: SELinux: allowed { execute } scontext=unconfined_u:unconfined_r:sepgsql_regtest_user_t:s0 tcontext=system_u:object_r:sepgsql_proc_exec_t:s0 tclass=db_procedure name="pg_catalog.sepgsql_getcon()"
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sepgsql_getcon
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-----------------------------------------------------
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unconfined_u:unconfined_r:sepgsql_regtest_user_t:s0
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(1 row)
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--
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-- Test for Dynamic Domain Transition
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--
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-- validation of transaction aware dynamic-transition
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SELECT sepgsql_getcon(); -- confirm client privilege
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sepgsql_getcon
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--------------------------------------------------
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unconfined_u:unconfined_r:unconfined_t:s0:c0.c25
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(1 row)
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SELECT sepgsql_setcon('unconfined_u:unconfined_r:unconfined_t:s0:c0.c15');
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sepgsql_setcon
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----------------
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t
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(1 row)
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SELECT sepgsql_getcon();
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sepgsql_getcon
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--------------------------------------------------
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unconfined_u:unconfined_r:unconfined_t:s0:c0.c15
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(1 row)
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SELECT sepgsql_setcon(NULL); -- failed to reset
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ERROR: SELinux: security policy violation
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SELECT sepgsql_getcon();
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sepgsql_getcon
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--------------------------------------------------
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unconfined_u:unconfined_r:unconfined_t:s0:c0.c15
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(1 row)
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BEGIN;
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SELECT sepgsql_setcon('unconfined_u:unconfined_r:unconfined_t:s0:c0.c12');
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sepgsql_setcon
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----------------
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t
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(1 row)
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SELECT sepgsql_getcon();
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sepgsql_getcon
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--------------------------------------------------
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unconfined_u:unconfined_r:unconfined_t:s0:c0.c12
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(1 row)
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SAVEPOINT svpt_1;
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SELECT sepgsql_setcon('unconfined_u:unconfined_r:unconfined_t:s0:c0.c9');
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sepgsql_setcon
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----------------
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t
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(1 row)
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SELECT sepgsql_getcon();
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sepgsql_getcon
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-------------------------------------------------
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unconfined_u:unconfined_r:unconfined_t:s0:c0.c9
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(1 row)
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SAVEPOINT svpt_2;
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SELECT sepgsql_setcon('unconfined_u:unconfined_r:unconfined_t:s0:c0.c6');
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sepgsql_setcon
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----------------
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t
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(1 row)
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SELECT sepgsql_getcon();
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sepgsql_getcon
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-------------------------------------------------
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unconfined_u:unconfined_r:unconfined_t:s0:c0.c6
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(1 row)
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SAVEPOINT svpt_3;
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SELECT sepgsql_setcon('unconfined_u:unconfined_r:unconfined_t:s0:c0.c3');
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sepgsql_setcon
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----------------
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t
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(1 row)
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SELECT sepgsql_getcon();
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sepgsql_getcon
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-------------------------------------------------
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unconfined_u:unconfined_r:unconfined_t:s0:c0.c3
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(1 row)
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ROLLBACK TO SAVEPOINT svpt_2;
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SELECT sepgsql_getcon(); -- should be 's0:c0.c9'
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sepgsql_getcon
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-------------------------------------------------
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unconfined_u:unconfined_r:unconfined_t:s0:c0.c9
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(1 row)
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ROLLBACK TO SAVEPOINT svpt_1;
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SELECT sepgsql_getcon(); -- should be 's0:c0.c12'
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sepgsql_getcon
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--------------------------------------------------
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unconfined_u:unconfined_r:unconfined_t:s0:c0.c12
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(1 row)
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ABORT;
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SELECT sepgsql_getcon(); -- should be 's0:c0.c15'
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sepgsql_getcon
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--------------------------------------------------
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unconfined_u:unconfined_r:unconfined_t:s0:c0.c15
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(1 row)
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BEGIN;
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SELECT sepgsql_setcon('unconfined_u:unconfined_r:unconfined_t:s0:c0.c8');
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sepgsql_setcon
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----------------
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t
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(1 row)
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SELECT sepgsql_getcon();
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sepgsql_getcon
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-------------------------------------------------
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unconfined_u:unconfined_r:unconfined_t:s0:c0.c8
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(1 row)
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SAVEPOINT svpt_1;
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SELECT sepgsql_setcon('unconfined_u:unconfined_r:unconfined_t:s0:c0.c4');
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sepgsql_setcon
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----------------
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t
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(1 row)
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SELECT sepgsql_getcon();
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sepgsql_getcon
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-------------------------------------------------
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unconfined_u:unconfined_r:unconfined_t:s0:c0.c4
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(1 row)
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ROLLBACK TO SAVEPOINT svpt_1;
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SELECT sepgsql_getcon(); -- should be 's0:c0.c8'
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sepgsql_getcon
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-------------------------------------------------
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unconfined_u:unconfined_r:unconfined_t:s0:c0.c8
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(1 row)
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SELECT sepgsql_setcon('unconfined_u:unconfined_r:unconfined_t:s0:c0.c6');
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sepgsql_setcon
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----------------
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t
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(1 row)
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COMMIT;
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SELECT sepgsql_getcon(); -- should be 's0:c0.c6'
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sepgsql_getcon
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-------------------------------------------------
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unconfined_u:unconfined_r:unconfined_t:s0:c0.c6
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(1 row)
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-- sepgsql_regtest_user_t is not available dynamic-transition,
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-- unless sepgsql_setcon() is called inside of trusted-procedure
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SELECT sepgsql_getcon(); -- confirm client privilege
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sepgsql_getcon
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------------------------------------------------------------
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unconfined_u:unconfined_r:sepgsql_regtest_user_t:s0:c0.c15
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(1 row)
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-- sepgsql_regtest_user_t has no permission to switch current label
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SELECT sepgsql_setcon('unconfined_u:unconfined_r:sepgsql_regtest_user_t:s0'); -- failed
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ERROR: SELinux: security policy violation
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SELECT sepgsql_getcon();
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sepgsql_getcon
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------------------------------------------------------------
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unconfined_u:unconfined_r:sepgsql_regtest_user_t:s0:c0.c15
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(1 row)
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-- trusted procedure allows to switch, but unavailable to override MCS rules
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SELECT f5('unconfined_u:unconfined_r:sepgsql_regtest_user_t:s0:c0.c7'); -- OK
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f5
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----
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t
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(1 row)
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SELECT sepgsql_getcon();
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sepgsql_getcon
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-----------------------------------------------------------
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unconfined_u:unconfined_r:sepgsql_regtest_user_t:s0:c0.c7
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(1 row)
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SELECT f5('unconfined_u:unconfined_r:sepgsql_regtest_user_t:s0:c0.c31'); -- Failed
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ERROR: SELinux: security policy violation
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CONTEXT: SQL function "f5" statement 1
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SELECT sepgsql_getcon();
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sepgsql_getcon
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-----------------------------------------------------------
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unconfined_u:unconfined_r:sepgsql_regtest_user_t:s0:c0.c7
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(1 row)
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SELECT f5(NULL); -- Failed
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ERROR: SELinux: security policy violation
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CONTEXT: SQL function "f5" statement 1
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SELECT sepgsql_getcon();
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sepgsql_getcon
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-----------------------------------------------------------
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unconfined_u:unconfined_r:sepgsql_regtest_user_t:s0:c0.c7
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(1 row)
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BEGIN;
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SELECT f5('unconfined_u:unconfined_r:sepgsql_regtest_user_t:s0:c0.c3'); -- OK
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f5
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----
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t
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(1 row)
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SELECT sepgsql_getcon();
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sepgsql_getcon
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-----------------------------------------------------------
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unconfined_u:unconfined_r:sepgsql_regtest_user_t:s0:c0.c3
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(1 row)
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ABORT;
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SELECT sepgsql_getcon();
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sepgsql_getcon
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-----------------------------------------------------------
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unconfined_u:unconfined_r:sepgsql_regtest_user_t:s0:c0.c7
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(1 row)
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--
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-- Test for simulation of typical connection pooling server
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--
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SELECT sepgsql_getcon(); -- confirm client privilege
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sepgsql_getcon
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-----------------------------------------------------
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unconfined_u:unconfined_r:sepgsql_regtest_pool_t:s0
|
|
(1 row)
|
|
|
|
-- we shouldn't allow to switch client label without trusted procedure
|
|
SELECT sepgsql_setcon('unconfined_u:unconfined_r:sepgsql_regtest_foo_t:s0');
|
|
ERROR: SELinux: security policy violation
|
|
SELECT * FROM auth_tbl; -- failed, no permission to reference
|
|
ERROR: SELinux: security policy violation
|
|
-- switch to "foo"
|
|
SELECT auth_func('foo', 'acbd18db4cc2f85cedef654fccc4a4d8');
|
|
auth_func
|
|
-----------
|
|
t
|
|
(1 row)
|
|
|
|
SELECT sepgsql_getcon();
|
|
sepgsql_getcon
|
|
----------------------------------------------------
|
|
unconfined_u:unconfined_r:sepgsql_regtest_foo_t:s0
|
|
(1 row)
|
|
|
|
SELECT * FROM foo_tbl; -- OK
|
|
a | b
|
|
---+-----
|
|
1 | aaa
|
|
2 | bbb
|
|
3 | ccc
|
|
4 | ddd
|
|
(4 rows)
|
|
|
|
SELECT * FROM var_tbl; -- failed
|
|
ERROR: SELinux: security policy violation
|
|
SELECT * FROM auth_tbl; -- failed
|
|
ERROR: SELinux: security policy violation
|
|
SELECT sepgsql_setcon(NULL); -- end of session
|
|
sepgsql_setcon
|
|
----------------
|
|
t
|
|
(1 row)
|
|
|
|
SELECT sepgsql_getcon();
|
|
sepgsql_getcon
|
|
-----------------------------------------------------
|
|
unconfined_u:unconfined_r:sepgsql_regtest_pool_t:s0
|
|
(1 row)
|
|
|
|
-- the pooler cannot touch these tables directry
|
|
SELECT * FROM foo_tbl; -- failed
|
|
ERROR: SELinux: security policy violation
|
|
SELECT * FROM var_tbl; -- failed
|
|
ERROR: SELinux: security policy violation
|
|
-- switch to "var"
|
|
SELECT auth_func('var', 'b2145aac704ce76dbe1ac7adac535b23');
|
|
auth_func
|
|
-----------
|
|
t
|
|
(1 row)
|
|
|
|
SELECT sepgsql_getcon();
|
|
sepgsql_getcon
|
|
----------------------------------------------------
|
|
unconfined_u:unconfined_r:sepgsql_regtest_var_t:s0
|
|
(1 row)
|
|
|
|
SELECT * FROM foo_tbl; -- failed
|
|
ERROR: SELinux: security policy violation
|
|
SELECT * FROM var_tbl; -- OK
|
|
x | y
|
|
---+-----
|
|
2 | xxx
|
|
3 | yyy
|
|
4 | zzz
|
|
5 | xyz
|
|
(4 rows)
|
|
|
|
SELECT * FROM auth_tbl; -- failed
|
|
ERROR: SELinux: security policy violation
|
|
SELECT sepgsql_setcon(NULL); -- end of session
|
|
sepgsql_setcon
|
|
----------------
|
|
t
|
|
(1 row)
|
|
|
|
-- misc checks
|
|
SELECT auth_func('var', 'invalid credential'); -- not works
|
|
auth_func
|
|
-----------
|
|
|
|
(1 row)
|
|
|
|
SELECT sepgsql_getcon();
|
|
sepgsql_getcon
|
|
-----------------------------------------------------
|
|
unconfined_u:unconfined_r:sepgsql_regtest_pool_t:s0
|
|
(1 row)
|
|
|
|
--
|
|
-- Clean up
|
|
--
|
|
SELECT sepgsql_getcon(); -- confirm client privilege
|
|
sepgsql_getcon
|
|
------------------------------------------------------
|
|
unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c255
|
|
(1 row)
|
|
|
|
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 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;
|