SERVER-10231 disallow creation of indexes on system.indexes

Conflicts:
	src/mongo/db/index.cpp
	src/mongo/db/namespacestring.h

1 files changed, 19 insertions, 0 deletions

diff --git a/jstests/indexes_on_indexes.js b/jstests/indexes_on_indexes.js
new file mode 100644
index 00000000000..807c1e25bfd
--- /dev/null
+++ b/jstests/indexes_on_indexes.js
@@ -0,0 +1,19 @@
+// ensure an index cannot be created on system.indexes
+t = db.getSiblingDB("indexes_on_indexes");
+printjson(t.system.indexes.getIndexes());
+assert.eq(t.system.indexes.getIndexes().length, 0);
+print("trying via ensureIndex");
+assert.throws(t.system.indexes.ensureIndex({_id:1}));
+printjson(t.system.indexes.getIndexes());
+assert.eq(t.system.indexes.getIndexes().length, 0);
+print("trying via createIndex");
+assert.throws(t.system.indexes.createIndex({_id:1}));
+printjson(t.system.indexes.getIndexes());
+assert.eq(t.system.indexes.getIndexes().length, 0);
+print("trying via direct insertion");
+assert.throws(t.system.indexes.insert({ v:1,
+                                        key:{_id:1},
+                                        ns: "indexes_on_indexes.system.indexes",
+                                        name:"wontwork"}));
+printjson(t.system.indexes.getIndexes());
+assert.eq(t.system.indexes.getIndexes().length, 0);