net: bridge: mcast: add support for blocked port groups

When excluding S,G entries we need a way to block a particular S,G,port.
The new port group flag is managed based on the source's timer as per
RFCs 3376 and 3810. When a source expires and its port group is in
EXCLUDE mode, it will be blocked.

Signed-off-by: Nikolay Aleksandrov <nikolay@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Nikolay Aleksandrov
2020-09-22 10:30:25 +03:00
committed by David S. Miller
parent 8266a0491e
commit 9116ffbf1d
4 changed files with 47 additions and 6 deletions

View File

@@ -519,6 +519,7 @@ struct br_mdb_entry {
#define MDB_FLAGS_OFFLOAD (1 << 0)
#define MDB_FLAGS_FAST_LEAVE (1 << 1)
#define MDB_FLAGS_STAR_EXCL (1 << 2)
#define MDB_FLAGS_BLOCKED (1 << 3)
__u8 flags;
__u16 vid;
struct {