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	__u32 optval;	770	__u32 optval;
771	__u32 optmask;	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	#endif /* _UAPI_LINUX_IF_BRIDGE_H */	783	#endif /* _UAPI_LINUX_IF_BRIDGE_H */

include/uapi/linux/if_link.h+1−0

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