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0426f349ef
Remove the code in plpgsql that suppressed the innermost line of CONTEXT for messages emitted by RAISE commands. That was never more than a quick backwards-compatibility hack, and it's pretty silly in cases where the RAISE is nested in several levels of function. What's more, it violated our design theory that verbosity of error reports should be controlled on the client side not the server side. To alleviate the resulting noise increase, introduce a feature in libpq and psql whereby the CONTEXT field of messages can be suppressed, either always or only for non-error messages. Printing CONTEXT for errors only is now their default behavior. The actual code changes here are pretty small, but the effects on the regression test outputs are widespread. I had to edit some of the alternative expected outputs by hand; hopefully the buildfarm will soon find anything I fat-fingered. In passing, fix up (again) the output line counts in psql's various help displays. Add some commentary about how to verify them. Pavel Stehule, reviewed by Petr Jelínek, Jeevan Chalke, and others
508 lines
19 KiB
Plaintext
508 lines
19 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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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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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:sepgsql_regtest_superuser_t:s0:c0.c25
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(1 row)
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SELECT sepgsql_setcon('unconfined_u:unconfined_r:sepgsql_regtest_superuser_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:sepgsql_regtest_superuser_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:sepgsql_regtest_superuser_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:sepgsql_regtest_superuser_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:sepgsql_regtest_superuser_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:sepgsql_regtest_superuser_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:sepgsql_regtest_superuser_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:sepgsql_regtest_superuser_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:sepgsql_regtest_superuser_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:sepgsql_regtest_superuser_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:sepgsql_regtest_superuser_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:sepgsql_regtest_superuser_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:sepgsql_regtest_superuser_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:sepgsql_regtest_superuser_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:sepgsql_regtest_superuser_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:sepgsql_regtest_superuser_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:sepgsql_regtest_superuser_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:sepgsql_regtest_superuser_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:sepgsql_regtest_superuser_t:s0:c0.c8
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(1 row)
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SELECT sepgsql_setcon('unconfined_u:unconfined_r:sepgsql_regtest_superuser_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:sepgsql_regtest_superuser_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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----
|
|
t
|
|
(1 row)
|
|
|
|
SELECT sepgsql_getcon();
|
|
sepgsql_getcon
|
|
-----------------------------------------------------------
|
|
unconfined_u:unconfined_r:sepgsql_regtest_user_t:s0:c0.c3
|
|
(1 row)
|
|
|
|
ABORT;
|
|
SELECT sepgsql_getcon();
|
|
sepgsql_getcon
|
|
-----------------------------------------------------------
|
|
unconfined_u:unconfined_r:sepgsql_regtest_user_t:s0:c0.c7
|
|
(1 row)
|
|
|
|
--
|
|
-- Test for simulation of typical connection pooling server
|
|
--
|
|
SELECT sepgsql_getcon(); -- confirm client privilege
|
|
sepgsql_getcon
|
|
-----------------------------------------------------
|
|
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:sepgsql_regtest_superuser_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;
|