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net: bridge: mdb: add support to extend add/del commands

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Since the MDB add/del code expects an exact struct br_mdb_entry we can't
really add any extensions, thus add a new nested attribute at the level of
MDBA_SET_ENTRY called MDBA_SET_ENTRY_ATTRS which will be used to pass
all new options via netlink attributes. This patch doesn't change
anything functionally since the new attribute is not used yet, only
parsed.

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 10:30:18 +03:00
committed by David S. Miller
parent eab3227b12
commit 9c4258c78a
2 changed files with 31 additions and 3 deletions
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12
include/uapi/linux/if_bridge.h
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@@ -530,10 +530,22 @@ struct br_mdb_entry {
enum {
MDBA_SET_ENTRY_UNSPEC,
MDBA_SET_ENTRY,
MDBA_SET_ENTRY_ATTRS,
__MDBA_SET_ENTRY_MAX,
};
#define MDBA_SET_ENTRY_MAX (__MDBA_SET_ENTRY_MAX - 1)
/* [MDBA_SET_ENTRY_ATTRS] = {
* [MDBE_ATTR_xxx]
* ...
* }
*/
enum {
MDBE_ATTR_UNSPEC,
__MDBE_ATTR_MAX,
};
#define MDBE_ATTR_MAX (__MDBE_ATTR_MAX - 1)
/* Embedded inside LINK_XSTATS_TYPE_BRIDGE */
enum {
BRIDGE_XSTATS_UNSPEC,