net: bridge: mcast: dump ipv4 querier state

Add support for dumping global IPv4 querier state, we dump the state only if our own querier is enabled or there has been another external querier which has won the election. For the bridge global state we use a new attribute IFLA_BR_MCAST_QUERIER_STATE and embed the state inside. The structure is: [IFLA_BR_MCAST_QUERIER_STATE] `[BRIDGE_QUERIER_IP_ADDRESS] - ip address of the querier `[BRIDGE_QUERIER_IP_PORT] - bridge port ifindex where the querier was seen (set only if external querier) `[BRIDGE_QUERIER_IP_OTHER_TIMER] - other querier timeout

Nikolay Aleksandrov committed 5 years ago

Commit c7fa1d91 parent c3fb3695 files · +92 −1Browse files

Showing the changes to include/uapi (2 of 5 files). Show all

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2 files

include/uapi/linux/if_bridge.h +10 −0
include/uapi/linux/if_link.h +1 −0

include/uapi/linux/if_bridge.h+10−0

@@ -770,4 +770,14 @@ struct br_boolopt_multi { · 769 unmodified lines
770	770	__u32 optval;
771	771	__u32 optmask;
772	772	};
	773	+
	774	+enum {
	775	+ BRIDGE_QUERIER_UNSPEC,
	776	+ BRIDGE_QUERIER_IP_ADDRESS,
	777	+ BRIDGE_QUERIER_IP_PORT,
	778	+ BRIDGE_QUERIER_IP_OTHER_TIMER,
	779	+ BRIDGE_QUERIER_PAD,
	780	+ __BRIDGE_QUERIER_MAX
	781	+};
	782	+#define BRIDGE_QUERIER_MAX (__BRIDGE_QUERIER_MAX - 1)
773	783	#endif /* _UAPI_LINUX_IF_BRIDGE_H */

include/uapi/linux/if_link.h+1−0

@@ -479,6 +479,7 @@ enum { · 478 unmodified lines
479	479	IFLA_BR_MCAST_MLD_VERSION,
480	480	IFLA_BR_VLAN_STATS_PER_PORT,
481	481	IFLA_BR_MULTI_BOOLOPT,
	482	+ IFLA_BR_MCAST_QUERIER_STATE,
482	483	__IFLA_BR_MAX,
483	484	};
484	485