tipc: add functionality to lookup multicast destination nodes
As a further preparation for the upcoming 'replicast' functionality,
we add some necessary structs and functions for looking up and returning
a list of all nodes that host destinations for a given multicast message.
Reviewed-by: Parthasarathy Bhuvaragan <parthasarathy.bhuvaragan@ericsson.com>
Acked-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/tipc/name_table.h b/net/tipc/name_table.h
index c89bb3f..6ebdeb1 100644
--- a/net/tipc/name_table.h
+++ b/net/tipc/name_table.h
@@ -39,6 +39,7 @@
struct tipc_subscription;
struct tipc_plist;
+struct tipc_nlist;
/*
* TIPC name types reserved for internal TIPC use (both current and planned)
@@ -100,6 +101,9 @@
u32 tipc_nametbl_translate(struct net *net, u32 type, u32 instance, u32 *node);
int tipc_nametbl_mc_translate(struct net *net, u32 type, u32 lower, u32 upper,
u32 limit, struct list_head *dports);
+void tipc_nametbl_lookup_dst_nodes(struct net *net, u32 type, u32 lower,
+ u32 upper, u32 domain,
+ struct tipc_nlist *nodes);
struct publication *tipc_nametbl_publish(struct net *net, u32 type, u32 lower,
u32 upper, u32 scope, u32 port_ref,
u32 key);
@@ -116,6 +120,11 @@
int tipc_nametbl_init(struct net *net);
void tipc_nametbl_stop(struct net *net);
+struct u32_item {
+ struct list_head list;
+ u32 value;
+};
+
bool u32_push(struct list_head *l, u32 value);
u32 u32_pop(struct list_head *l);
bool u32_find(struct list_head *l, u32 value);