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Remove rolcatupdate

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This role attribute is an ancient PostgreSQL feature, but could only be
set by directly updating the system catalogs, and it doesn't have any
clearly defined use.

Author: Adam Brightwell <adam.brightwell@crunchydatasolutions.com>
This commit is contained in:
Peter Eisentraut 2015-03-06 23:42:38 -05:00
parent 6510c832bb
commit bb8582abf3
8 changed files with 17 additions and 90 deletions
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38
doc/src/sgml/catalogs.sgml
View File

@ -1415,15 +1415,6 @@
<entry>Role can create databases</entry>
</row>
<row>
<entry><structfield>rolcatupdate</structfield></entry>
<entry><type>bool</type></entry>
<entry>
Role can update system catalogs directly. (Even a superuser cannot do
this unless this column is true)
</entry>
</row>
<row>
<entry><structfield>rolcanlogin</structfield></entry>
<entry><type>bool</type></entry>
@ -8491,16 +8482,6 @@ SELECT * FROM pg_locks pl LEFT JOIN pg_prepared_xacts ppx
<entry>Role can create databases</entry>
</row>
<row>
<entry><structfield>rolcatupdate</structfield></entry>
<entry><type>bool</type></entry>
<entry></entry>
<entry>
Role can update system catalogs directly. (Even a superuser cannot do
this unless this column is true)
</entry>
</row>
<row>
<entry><structfield>rolcanlogin</structfield></entry>
<entry><type>bool</type></entry>
@ -9019,16 +9000,6 @@ SELECT * FROM pg_locks pl LEFT JOIN pg_prepared_xacts ppx
<entry>User is a superuser</entry>
</row>
<row>
<entry><structfield>usecatupd</structfield></entry>
<entry><type>bool</type></entry>
<entry></entry>
<entry>
User can update system catalogs. (Even a superuser cannot do
this unless this column is true.)
</entry>
</row>
<row>
<entry><structfield>userepl</structfield></entry>
<entry><type>bool</type></entry>
@ -9506,15 +9477,6 @@ SELECT * FROM pg_locks pl LEFT JOIN pg_prepared_xacts ppx
<entry>User is a superuser</entry>
</row>
<row>
<entry><structfield>usecatupd</structfield></entry>
<entry><type>bool</type></entry>
<entry>
User can update system catalogs. (Even a superuser cannot do
this unless this column is true.)
</entry>
</row>
<row>
<entry><structfield>userepl</structfield></entry>
<entry><type>bool</type></entry>

25
src/backend/catalog/aclchk.c
View File

@ -3423,26 +3423,6 @@ aclcheck_error_type(AclResult aclerr, Oid typeOid)
}
/* Check if given user has rolcatupdate privilege according to pg_authid */
static bool
has_rolcatupdate(Oid roleid)
{
bool rolcatupdate;
HeapTuple tuple;
tuple = SearchSysCache1(AUTHOID, ObjectIdGetDatum(roleid));
if (!HeapTupleIsValid(tuple))
ereport(ERROR,
(errcode(ERRCODE_UNDEFINED_OBJECT),
errmsg("role with OID %u does not exist", roleid)));
rolcatupdate = ((Form_pg_authid) GETSTRUCT(tuple))->rolcatupdate;
ReleaseSysCache(tuple);
return rolcatupdate;
}
/*
* Relay for the various pg_*_mask routines depending on object kind
*/
@ -3620,8 +3600,7 @@ pg_class_aclmask(Oid table_oid, Oid roleid,
/*
* Deny anyone permission to update a system catalog unless
* pg_authid.rolcatupdate is set. (This is to let superusers protect
* themselves from themselves.) Also allow it if allowSystemTableMods.
* pg_authid.rolsuper is set. Also allow it if allowSystemTableMods.
*
* As of 7.4 we have some updatable system views; those shouldn't be
* protected in this way. Assume the view rules can take care of
@ -3630,7 +3609,7 @@ pg_class_aclmask(Oid table_oid, Oid roleid,
if ((mask & (ACL_INSERT | ACL_UPDATE | ACL_DELETE | ACL_TRUNCATE | ACL_USAGE)) &&
IsSystemClass(table_oid, classForm) &&
classForm->relkind != RELKIND_VIEW &&
!has_rolcatupdate(roleid) &&
!superuser_arg(roleid) &&
!allowSystemTableMods)
{
#ifdef ACLDEBUG

3
src/backend/catalog/system_views.sql
View File

@ -13,7 +13,6 @@ CREATE VIEW pg_roles AS
rolinherit,
rolcreaterole,
rolcreatedb,
rolcatupdate,
rolcanlogin,
rolreplication,
rolconnlimit,
@ -31,7 +30,6 @@ CREATE VIEW pg_shadow AS
pg_authid.oid AS usesysid,
rolcreatedb AS usecreatedb,
rolsuper AS usesuper,
rolcatupdate AS usecatupd,
rolreplication AS userepl,
rolbypassrls AS usebypassrls,
rolpassword AS passwd,
@ -57,7 +55,6 @@ CREATE VIEW pg_user AS
usesysid,
usecreatedb,
usesuper,
usecatupd,
userepl,
usebypassrls,
'********'::text as passwd,

12
src/backend/commands/user.c
View File

@ -368,8 +368,6 @@ CreateRole(CreateRoleStmt *stmt)
new_record[Anum_pg_authid_rolinherit - 1] = BoolGetDatum(inherit);
new_record[Anum_pg_authid_rolcreaterole - 1] = BoolGetDatum(createrole);
new_record[Anum_pg_authid_rolcreatedb - 1] = BoolGetDatum(createdb);
/* superuser gets catupdate right by default */
new_record[Anum_pg_authid_rolcatupdate - 1] = BoolGetDatum(issuper);
new_record[Anum_pg_authid_rolcanlogin - 1] = BoolGetDatum(canlogin);
new_record[Anum_pg_authid_rolreplication - 1] = BoolGetDatum(isreplication);
new_record[Anum_pg_authid_rolconnlimit - 1] = Int32GetDatum(connlimit);
@ -734,20 +732,12 @@ AlterRole(AlterRoleStmt *stmt)
MemSet(new_record_repl, false, sizeof(new_record_repl));
/*
* issuper/createrole/catupdate/etc
*
* XXX It's rather unclear how to handle catupdate. It's probably best to
* keep it equal to the superuser status, otherwise you could end up with
* a situation where no existing superuser can alter the catalogs,
* including pg_authid!
* issuper/createrole/etc
*/
if (issuper >= 0)
{
new_record[Anum_pg_authid_rolsuper - 1] = BoolGetDatum(issuper > 0);
new_record_repl[Anum_pg_authid_rolsuper - 1] = true;
new_record[Anum_pg_authid_rolcatupdate - 1] = BoolGetDatum(issuper > 0);
new_record_repl[Anum_pg_authid_rolcatupdate - 1] = true;
}
if (inherit >= 0)

2
src/include/catalog/catversion.h
View File

@ -53,6 +53,6 @@
*/
/* yyyymmddN */
#define CATALOG_VERSION_NO 201503031
#define CATALOG_VERSION_NO 201503061
#endif

18
src/include/catalog/pg_authid.h
View File

@ -49,7 +49,6 @@ CATALOG(pg_authid,1260) BKI_SHARED_RELATION BKI_ROWTYPE_OID(2842) BKI_SCHEMA_MAC
bool rolinherit; /* inherit privileges from other roles? */
bool rolcreaterole; /* allowed to create more roles? */
bool rolcreatedb; /* allowed to create databases? */
bool rolcatupdate; /* allowed to alter catalogs manually? */
bool rolcanlogin; /* allowed to log in as session user? */
bool rolreplication; /* role used for streaming replication */
bool rolbypassrls; /* allowed to bypass row level security? */
@ -76,19 +75,18 @@ typedef FormData_pg_authid *Form_pg_authid;
* compiler constants for pg_authid
* ----------------
*/
#define Natts_pg_authid 12
#define Natts_pg_authid 11
#define Anum_pg_authid_rolname 1
#define Anum_pg_authid_rolsuper 2
#define Anum_pg_authid_rolinherit 3
#define Anum_pg_authid_rolcreaterole 4
#define Anum_pg_authid_rolcreatedb 5
#define Anum_pg_authid_rolcatupdate 6
#define Anum_pg_authid_rolcanlogin 7
#define Anum_pg_authid_rolreplication 8
#define Anum_pg_authid_rolbypassrls 9
#define Anum_pg_authid_rolconnlimit 10
#define Anum_pg_authid_rolpassword 11
#define Anum_pg_authid_rolvaliduntil 12
#define Anum_pg_authid_rolcanlogin 6
#define Anum_pg_authid_rolreplication 7
#define Anum_pg_authid_rolbypassrls 8
#define Anum_pg_authid_rolconnlimit 9
#define Anum_pg_authid_rolpassword 10
#define Anum_pg_authid_rolvaliduntil 11
/* ----------------
* initial contents of pg_authid
@ -97,7 +95,7 @@ typedef FormData_pg_authid *Form_pg_authid;
* user choices.
* ----------------
*/
DATA(insert OID = 10 ( "POSTGRES" t t t t t t t t -1 _null_ _null_));
DATA(insert OID = 10 ( "POSTGRES" t t t t t t t -1 _null_ _null_));
#define BOOTSTRAP_SUPERUSERID 10

6
src/test/regress/expected/privileges.out
View File

@ -676,7 +676,11 @@ ERROR: role "nosuchuser" does not exist
select has_table_privilege('pg_authid','sel');
ERROR: unrecognized privilege type: "sel"
select has_table_privilege(-999999,'pg_authid','update');
ERROR: role with OID 4293967297 does not exist
has_table_privilege
---------------------
f
(1 row)
select has_table_privilege(1,'select');
has_table_privilege
---------------------

3
src/test/regress/expected/rules.out
View File

@ -1406,7 +1406,6 @@ pg_roles| SELECT pg_authid.rolname,
pg_authid.rolinherit,
pg_authid.rolcreaterole,
pg_authid.rolcreatedb,
pg_authid.rolcatupdate,
pg_authid.rolcanlogin,
pg_authid.rolreplication,
pg_authid.rolconnlimit,
@ -1607,7 +1606,6 @@ pg_shadow| SELECT pg_authid.rolname AS usename,
pg_authid.oid AS usesysid,
pg_authid.rolcreatedb AS usecreatedb,
pg_authid.rolsuper AS usesuper,
pg_authid.rolcatupdate AS usecatupd,
pg_authid.rolreplication AS userepl,
pg_authid.rolbypassrls AS usebypassrls,
pg_authid.rolpassword AS passwd,
@ -2062,7 +2060,6 @@ pg_user| SELECT pg_shadow.usename,
pg_shadow.usesysid,
pg_shadow.usecreatedb,
pg_shadow.usesuper,
pg_shadow.usecatupd,
pg_shadow.userepl,
pg_shadow.usebypassrls,
'********'::text AS passwd,