net: ipmr: add getlink support

Currently there's no way to dump the VIF table for an ipmr table other than the default (via proc). This is a major issue when debugging ipmr issues and in general it is good to know which interfaces are configured. This patch adds support for RTM_GETLINK for the ipmr family so we can dump the VIF table and the ipmr table's current config for each table. We're protected by rtnl so no need to acquire RCU or mrt_lock.

Nikolay Aleksandrov committed 9 years ago

Commit 772c3441 parent cb7f8fc2 files · +168 −0Browse files

Showing the changes to include/uapi/linux (1 of 2 files). Show all

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include/uapi/linux/mroute.h+42−0

@@ -110,6 +110,48 @@ struct igmpmsg { · 109 unmodified lines
110	struct in_addr im_src,im_dst;	110	struct in_addr im_src,im_dst;
111	};	111	};
112		112
		113	/* ipmr netlink table attributes */
		114	enum {
		115	IPMRA_TABLE_UNSPEC,
		116	IPMRA_TABLE_ID,
		117	IPMRA_TABLE_CACHE_RES_QUEUE_LEN,
		118	IPMRA_TABLE_MROUTE_REG_VIF_NUM,
		119	IPMRA_TABLE_MROUTE_DO_ASSERT,
		120	IPMRA_TABLE_MROUTE_DO_PIM,
		121	IPMRA_TABLE_VIFS,
		122	__IPMRA_TABLE_MAX
		123	};
		124	#define IPMRA_TABLE_MAX (__IPMRA_TABLE_MAX - 1)
		125
		126	/* ipmr netlink vif attribute format
		127	* [ IPMRA_TABLE_VIFS ] - nested attribute
		128	* [ IPMRA_VIF ] - nested attribute
		129	* [ IPMRA_VIFA_xxx ]
		130	*/
		131	enum {
		132	IPMRA_VIF_UNSPEC,
		133	IPMRA_VIF,
		134	__IPMRA_VIF_MAX
		135	};
		136	#define IPMRA_VIF_MAX (__IPMRA_VIF_MAX - 1)
		137
		138	/* vif-specific attributes */
		139	enum {
		140	IPMRA_VIFA_UNSPEC,
		141	IPMRA_VIFA_IFINDEX,
		142	IPMRA_VIFA_VIF_ID,
		143	IPMRA_VIFA_FLAGS,
		144	IPMRA_VIFA_BYTES_IN,
		145	IPMRA_VIFA_BYTES_OUT,
		146	IPMRA_VIFA_PACKETS_IN,
		147	IPMRA_VIFA_PACKETS_OUT,
		148	IPMRA_VIFA_LOCAL_ADDR,
		149	IPMRA_VIFA_REMOTE_ADDR,
		150	IPMRA_VIFA_PAD,
		151	__IPMRA_VIFA_MAX
		152	};
		153	#define IPMRA_VIFA_MAX (__IPMRA_VIFA_MAX - 1)
		154
113	/* That's all usermode folks */	155	/* That's all usermode folks */
114		156
115	#define MFC_ASSERT_THRESH (3HZ) / Maximal freq. of asserts */	157	#define MFC_ASSERT_THRESH (3HZ) / Maximal freq. of asserts */