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Commit 47f5bb9

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sfrostsfrost
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Correctly dump database and tablespace ACLs
Dump out the appropriate GRANT/REVOKE commands for databases and tablespaces from pg_dumpall to replicate what the current state is. This was broken during the changes to buildACLCommands for 9.6+ servers for pg_init_privs.
1 parent fe03f28 commit 47f5bb9

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3 files changed

+231
-44
lines changed

3 files changed

+231
-44
lines changed

‎src/bin/initdb/initdb.c

+3-24
Original file line numberDiff line numberDiff line change
@@ -2002,6 +2002,9 @@ setup_dictionary(FILE *cmdfd)
20022002
* time. This is used by pg_dump to allow users to change privileges
20032003
* on catalog objects and to have those privilege changes preserved
20042004
* across dump/reload and pg_upgrade.
2005+
*
2006+
* Note that pg_init_privs is only for per-database objects and therefore
2007+
* we don't include databases or tablespaces.
20052008
*/
20062009
static void
20072010
setup_privileges(FILE *cmdfd)
@@ -2111,30 +2114,6 @@ setup_privileges(FILE *cmdfd)
21112114
" (objoid, classoid, objsubid, initprivs, privtype)"
21122115
" SELECT"
21132116
" oid,"
2114-
" (SELECT oid FROM pg_class WHERE relname = 'pg_database'),"
2115-
" 0,"
2116-
" datacl,"
2117-
" 'i'"
2118-
" FROM"
2119-
" pg_database"
2120-
" WHERE"
2121-
" datacl IS NOT NULL;",
2122-
"INSERT INTO pg_init_privs "
2123-
" (objoid, classoid, objsubid, initprivs, privtype)"
2124-
" SELECT"
2125-
" oid,"
2126-
" (SELECT oid FROM pg_class WHERE relname = 'pg_tablespace'),"
2127-
" 0,"
2128-
" spcacl,"
2129-
" 'i'"
2130-
" FROM"
2131-
" pg_tablespace"
2132-
" WHERE"
2133-
" spcacl IS NOT NULL;",
2134-
"INSERT INTO pg_init_privs "
2135-
" (objoid, classoid, objsubid, initprivs, privtype)"
2136-
" SELECT"
2137-
" oid,"
21382117
" (SELECT oid FROM pg_class WHERE "
21392118
" relname = 'pg_foreign_data_wrapper'),"
21402119
" 0,"

‎src/bin/pg_dump/pg_dumpall.c

+75-20
Original file line numberDiff line numberDiff line change
@@ -1072,11 +1072,35 @@ dumpTablespaces(PGconn *conn)
10721072
/*
10731073
* Get all tablespaces except built-in ones (which we assume are named
10741074
* pg_xxx)
1075+
*
1076+
* For the tablespace ACLs, as of 9.6, we extract both the positive (as
1077+
* spcacl) and negative (as rspcacl) ACLs, relative to the default ACL for
1078+
* tablespaces, which are then passed to buildACLCommands() below.
1079+
*
1080+
* See buildACLQueries() and buildACLCommands().
1081+
*
1082+
* Note that we do not support initial privileges (pg_init_privs) on
1083+
* tablespaces.
10751084
*/
1076-
if (server_version >= 90200)
1085+
if (server_version >= 90600)
10771086
res = executeQuery(conn, "SELECT oid, spcname, "
10781087
"pg_catalog.pg_get_userbyid(spcowner) AS spcowner, "
1079-
"pg_catalog.pg_tablespace_location(oid), spcacl, "
1088+
"pg_catalog.pg_tablespace_location(oid), "
1089+
"(SELECT pg_catalog.array_agg(acl) FROM (SELECT pg_catalog.unnest(coalesce(spcacl,pg_catalog.acldefault('t',spcowner))) AS acl "
1090+
"EXCEPT SELECT pg_catalog.unnest(pg_catalog.acldefault('t',spcowner))) as foo)"
1091+
"AS spcacl,"
1092+
"(SELECT pg_catalog.array_agg(acl) FROM (SELECT pg_catalog.unnest(pg_catalog.acldefault('t',spcowner)) AS acl "
1093+
"EXCEPT SELECT pg_catalog.unnest(coalesce(spcacl,pg_catalog.acldefault('t',spcowner)))) as foo)"
1094+
"AS rspcacl,"
1095+
"array_to_string(spcoptions, ', '),"
1096+
"pg_catalog.shobj_description(oid, 'pg_tablespace') "
1097+
"FROM pg_catalog.pg_tablespace "
1098+
"WHERE spcname !~ '^pg_' "
1099+
"ORDER BY 1");
1100+
else if (server_version >= 90200)
1101+
res = executeQuery(conn, "SELECT oid, spcname, "
1102+
"pg_catalog.pg_get_userbyid(spcowner) AS spcowner, "
1103+
"pg_catalog.pg_tablespace_location(oid), spcacl, '' as rspcacl, "
10801104
"array_to_string(spcoptions, ', '),"
10811105
"pg_catalog.shobj_description(oid, 'pg_tablespace') "
10821106
"FROM pg_catalog.pg_tablespace "
@@ -1085,7 +1109,7 @@ dumpTablespaces(PGconn *conn)
10851109
else if (server_version >= 90000)
10861110
res = executeQuery(conn, "SELECT oid, spcname, "
10871111
"pg_catalog.pg_get_userbyid(spcowner) AS spcowner, "
1088-
"spclocation, spcacl, "
1112+
"spclocation, spcacl, '' as rspcacl, "
10891113
"array_to_string(spcoptions, ', '),"
10901114
"pg_catalog.shobj_description(oid, 'pg_tablespace') "
10911115
"FROM pg_catalog.pg_tablespace "
@@ -1094,15 +1118,15 @@ dumpTablespaces(PGconn *conn)
10941118
else if (server_version >= 80200)
10951119
res = executeQuery(conn, "SELECT oid, spcname, "
10961120
"pg_catalog.pg_get_userbyid(spcowner) AS spcowner, "
1097-
"spclocation, spcacl, null, "
1121+
"spclocation, spcacl, '' as rspcacl, null, "
10981122
"pg_catalog.shobj_description(oid, 'pg_tablespace') "
10991123
"FROM pg_catalog.pg_tablespace "
11001124
"WHERE spcname !~ '^pg_' "
11011125
"ORDER BY 1");
11021126
else
11031127
res = executeQuery(conn, "SELECT oid, spcname, "
11041128
"pg_catalog.pg_get_userbyid(spcowner) AS spcowner, "
1105-
"spclocation, spcacl, "
1129+
"spclocation, spcacl, '' as rspcacl, "
11061130
"null, null "
11071131
"FROM pg_catalog.pg_tablespace "
11081132
"WHERE spcname !~ '^pg_' "
@@ -1119,8 +1143,9 @@ dumpTablespaces(PGconn *conn)
11191143
char *spcowner = PQgetvalue(res, i, 2);
11201144
char *spclocation = PQgetvalue(res, i, 3);
11211145
char *spcacl = PQgetvalue(res, i, 4);
1122-
char *spcoptions = PQgetvalue(res, i, 5);
1123-
char *spccomment = PQgetvalue(res, i, 6);
1146+
char *rspcacl = PQgetvalue(res, i, 5);
1147+
char *spcoptions = PQgetvalue(res, i, 6);
1148+
char *spccomment = PQgetvalue(res, i, 7);
11241149
char *fspcname;
11251150

11261151
/* needed for buildACLCommands() */
@@ -1138,7 +1163,7 @@ dumpTablespaces(PGconn *conn)
11381163
fspcname, spcoptions);
11391164

11401165
if (!skip_acls &&
1141-
!buildACLCommands(fspcname, NULL, "TABLESPACE", spcacl, "",
1166+
!buildACLCommands(fspcname, NULL, "TABLESPACE", spcacl, rspcacl,
11421167
spcowner, "", server_version, buf))
11431168
{
11441169
fprintf(stderr, _("%s: could not parse ACL list (%s) for tablespace \"%s\"\n"),
@@ -1284,14 +1309,43 @@ dumpCreateDB(PGconn *conn)
12841309

12851310
PQclear(res);
12861311

1287-
/* Now collect all the information about databases to dump */
1288-
if (server_version >= 90300)
1312+
1313+
/*
1314+
* Now collect all the information about databases to dump.
1315+
*
1316+
* For the database ACLs, as of 9.6, we extract both the positive (as
1317+
* datacl) and negative (as rdatacl) ACLs, relative to the default ACL for
1318+
* databases, which are then passed to buildACLCommands() below.
1319+
*
1320+
* See buildACLQueries() and buildACLCommands().
1321+
*
1322+
* Note that we do not support initial privileges (pg_init_privs) on
1323+
* databases.
1324+
*/
1325+
if (server_version >= 90600)
1326+
res = executeQuery(conn,
1327+
"SELECT datname, "
1328+
"coalesce(rolname, (select rolname from pg_authid where oid=(select datdba from pg_database where datname='template0'))), "
1329+
"pg_encoding_to_char(d.encoding), "
1330+
"datcollate, datctype, datfrozenxid, datminmxid, "
1331+
"datistemplate, "
1332+
"(SELECT pg_catalog.array_agg(acl) FROM (SELECT pg_catalog.unnest(coalesce(datacl,pg_catalog.acldefault('d',datdba))) AS acl "
1333+
"EXCEPT SELECT pg_catalog.unnest(pg_catalog.acldefault('d',datdba))) as foo)"
1334+
"AS datacl,"
1335+
"(SELECT pg_catalog.array_agg(acl) FROM (SELECT pg_catalog.unnest(pg_catalog.acldefault('d',datdba)) AS acl "
1336+
"EXCEPT SELECT pg_catalog.unnest(coalesce(datacl,pg_catalog.acldefault('d',datdba)))) as foo)"
1337+
"AS rdatacl,"
1338+
"datconnlimit, "
1339+
"(SELECT spcname FROM pg_tablespace t WHERE t.oid = d.dattablespace) AS dattablespace "
1340+
"FROM pg_database d LEFT JOIN pg_authid u ON (datdba = u.oid) "
1341+
"WHERE datallowconn ORDER BY 1");
1342+
else if (server_version >= 90300)
12891343
res = executeQuery(conn,
12901344
"SELECT datname, "
12911345
"coalesce(rolname, (select rolname from pg_authid where oid=(select datdba from pg_database where datname='template0'))), "
12921346
"pg_encoding_to_char(d.encoding), "
12931347
"datcollate, datctype, datfrozenxid, datminmxid, "
1294-
"datistemplate, datacl, datconnlimit, "
1348+
"datistemplate, datacl, '' as rdatacl, datconnlimit, "
12951349
"(SELECT spcname FROM pg_tablespace t WHERE t.oid = d.dattablespace) AS dattablespace "
12961350
"FROM pg_database d LEFT JOIN pg_authid u ON (datdba = u.oid) "
12971351
"WHERE datallowconn ORDER BY 1");
@@ -1301,7 +1355,7 @@ dumpCreateDB(PGconn *conn)
13011355
"coalesce(rolname, (select rolname from pg_authid where oid=(select datdba from pg_database where datname='template0'))), "
13021356
"pg_encoding_to_char(d.encoding), "
13031357
"datcollate, datctype, datfrozenxid, 0 AS datminmxid, "
1304-
"datistemplate, datacl, datconnlimit, "
1358+
"datistemplate, datacl, '' as rdatacl, datconnlimit, "
13051359
"(SELECT spcname FROM pg_tablespace t WHERE t.oid = d.dattablespace) AS dattablespace "
13061360
"FROM pg_database d LEFT JOIN pg_authid u ON (datdba = u.oid) "
13071361
"WHERE datallowconn ORDER BY 1");
@@ -1311,7 +1365,7 @@ dumpCreateDB(PGconn *conn)
13111365
"coalesce(rolname, (select rolname from pg_authid where oid=(select datdba from pg_database where datname='template0'))), "
13121366
"pg_encoding_to_char(d.encoding), "
13131367
"null::text AS datcollate, null::text AS datctype, datfrozenxid, 0 AS datminmxid, "
1314-
"datistemplate, datacl, datconnlimit, "
1368+
"datistemplate, datacl, '' as rdatacl, datconnlimit, "
13151369
"(SELECT spcname FROM pg_tablespace t WHERE t.oid = d.dattablespace) AS dattablespace "
13161370
"FROM pg_database d LEFT JOIN pg_authid u ON (datdba = u.oid) "
13171371
"WHERE datallowconn ORDER BY 1");
@@ -1321,7 +1375,7 @@ dumpCreateDB(PGconn *conn)
13211375
"coalesce(usename, (select usename from pg_shadow where usesysid=(select datdba from pg_database where datname='template0'))), "
13221376
"pg_encoding_to_char(d.encoding), "
13231377
"null::text AS datcollate, null::text AS datctype, datfrozenxid, 0 AS datminmxid, "
1324-
"datistemplate, datacl, -1 as datconnlimit, "
1378+
"datistemplate, datacl, '' as rdatacl, -1 as datconnlimit, "
13251379
"(SELECT spcname FROM pg_tablespace t WHERE t.oid = d.dattablespace) AS dattablespace "
13261380
"FROM pg_database d LEFT JOIN pg_shadow u ON (datdba = usesysid) "
13271381
"WHERE datallowconn ORDER BY 1");
@@ -1331,7 +1385,7 @@ dumpCreateDB(PGconn *conn)
13311385
"coalesce(usename, (select usename from pg_shadow where usesysid=(select datdba from pg_database where datname='template0'))), "
13321386
"pg_encoding_to_char(d.encoding), "
13331387
"null::text AS datcollate, null::text AS datctype, datfrozenxid, 0 AS datminmxid, "
1334-
"datistemplate, datacl, -1 as datconnlimit, "
1388+
"datistemplate, datacl, '' as rdatacl, -1 as datconnlimit, "
13351389
"'pg_default' AS dattablespace "
13361390
"FROM pg_database d LEFT JOIN pg_shadow u ON (datdba = usesysid) "
13371391
"WHERE datallowconn ORDER BY 1");
@@ -1343,7 +1397,7 @@ dumpCreateDB(PGconn *conn)
13431397
"(select usename from pg_shadow where usesysid=(select datdba from pg_database where datname='template0'))), "
13441398
"pg_encoding_to_char(d.encoding), "
13451399
"null::text AS datcollate, null::text AS datctype, 0 AS datfrozenxid, 0 AS datminmxid, "
1346-
"datistemplate, '' as datacl, -1 as datconnlimit, "
1400+
"datistemplate, '' as datacl, '' as rdatacl, -1 as datconnlimit, "
13471401
"'pg_default' AS dattablespace "
13481402
"FROM pg_database d "
13491403
"WHERE datallowconn ORDER BY 1");
@@ -1359,7 +1413,7 @@ dumpCreateDB(PGconn *conn)
13591413
"pg_encoding_to_char(d.encoding), "
13601414
"null::text AS datcollate, null::text AS datctype, 0 AS datfrozenxid, 0 AS datminmxid, "
13611415
"'f' as datistemplate, "
1362-
"'' as datacl, -1 as datconnlimit, "
1416+
"'' as datacl, '' as rdatacl, -1 as datconnlimit, "
13631417
"'pg_default' AS dattablespace "
13641418
"FROM pg_database d "
13651419
"ORDER BY 1");
@@ -1376,8 +1430,9 @@ dumpCreateDB(PGconn *conn)
13761430
uint32 dbminmxid = atooid(PQgetvalue(res, i, 6));
13771431
char *dbistemplate = PQgetvalue(res, i, 7);
13781432
char *dbacl = PQgetvalue(res, i, 8);
1379-
char *dbconnlimit = PQgetvalue(res, i, 9);
1380-
char *dbtablespace = PQgetvalue(res, i, 10);
1433+
char *rdbacl = PQgetvalue(res, i, 9);
1434+
char *dbconnlimit = PQgetvalue(res, i, 10);
1435+
char *dbtablespace = PQgetvalue(res, i, 11);
13811436
char *fdbname;
13821437

13831438
fdbname = pg_strdup(fmtId(dbname));
@@ -1469,7 +1524,7 @@ dumpCreateDB(PGconn *conn)
14691524
}
14701525

14711526
if (!skip_acls &&
1472-
!buildACLCommands(fdbname, NULL, "DATABASE", dbacl, "", dbowner,
1527+
!buildACLCommands(fdbname, NULL, "DATABASE", dbacl, rdbacl, dbowner,
14731528
"", server_version, buf))
14741529
{
14751530
fprintf(stderr, _("%s: could not parse ACL list (%s) for database \"%s\"\n"),

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