Commit f80c24d9 authored Nov 03, 2011 by Allan Stephens Committed by Paul Gortmaker Feb 24, 2012

tipc: Add check to prevent insertion of duplicate name table entries



Adds a new check to TIPC's name table logic to reject any attempt to
create a new name publication that is identical to an existing one.
(Such an attempt will never happen under normal circumstances, but
could arise if another network node malfunctions and issues a duplicate
name publication message.)

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>

parent c422f1bd

net/tipc/name_table.c

+7 −0

Original line number	Diff line number	Diff line
		@@ -268,6 +268,13 @@ static struct publication tipc_nameseq_insert_publ(struct name_seq nseq,
		}

		info = sseq->info;

		/* Check if an identical publication already exists */
		list_for_each_entry(publ, &info->zone_list, zone_list) {
		if ((publ->ref == port) && (publ->key == key) &&
		(!publ->node \|\| (publ->node == node)))
		return NULL;
		}
		} else {
		u32 inspos;
		struct sub_seq *freesseq;