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net: bridge: mdb: add support for add/del/dump of entries with source

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Add new mdb attributes (MDBE_ATTR_SOURCE for setting,
MDBA_MDB_EATTR_SOURCE for dumping) to allow add/del and dump of mdb
entries with a source address (S,G). New S,G entries are created with
filter mode of MCAST_INCLUDE. The same attributes are used for IPv4 and
IPv6, they're validated and parsed based on their protocol.
S,G host joined entries which are added by user are not allowed yet.

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 10:30:19 +03:00 • committed by David S. Miller
parent 9c4258c78a
commit 88d4bd1804
3 changed files with 130 additions and 28 deletions
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2
include/uapi/linux/if_bridge.h
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@ -457,6 +457,7 @@ enum {
MDBA_MDB_EATTR_TIMER,
MDBA_MDB_EATTR_SRC_LIST,
MDBA_MDB_EATTR_GROUP_MODE,
MDBA_MDB_EATTR_SOURCE,
__MDBA_MDB_EATTR_MAX
};
#define MDBA_MDB_EATTR_MAX (__MDBA_MDB_EATTR_MAX - 1)
@ -542,6 +543,7 @@ enum {
*/
enum {
MDBE_ATTR_UNSPEC,
MDBE_ATTR_SOURCE,
__MDBE_ATTR_MAX,
};
#define MDBE_ATTR_MAX (__MDBE_ATTR_MAX - 1)