bridge: mrp: Implement netlink interface to configure MRP (4d02b8f0) · Commits · 戴 / test

net/bridge/br_mrp_netlink.c

+91 −0

Original line number	Diff line number	Diff line
		@@ -6,6 +6,97 @@
		#include "br_private.h"
		#include "br_private_mrp.h"

		static const struct nla_policy br_mrp_policy[IFLA_BRIDGE_MRP_MAX + 1] = {
		[IFLA_BRIDGE_MRP_UNSPEC] = { .type = NLA_REJECT },
		[IFLA_BRIDGE_MRP_INSTANCE] = { .type = NLA_EXACT_LEN,
		.len = sizeof(struct br_mrp_instance)},
		[IFLA_BRIDGE_MRP_PORT_STATE] = { .type = NLA_U32 },
		[IFLA_BRIDGE_MRP_PORT_ROLE] = { .type = NLA_EXACT_LEN,
		.len = sizeof(struct br_mrp_port_role)},
		[IFLA_BRIDGE_MRP_RING_STATE] = { .type = NLA_EXACT_LEN,
		.len = sizeof(struct br_mrp_ring_state)},
		[IFLA_BRIDGE_MRP_RING_ROLE] = { .type = NLA_EXACT_LEN,
		.len = sizeof(struct br_mrp_ring_role)},
		[IFLA_BRIDGE_MRP_START_TEST] = { .type = NLA_EXACT_LEN,
		.len = sizeof(struct br_mrp_start_test)},
		};

		int br_mrp_parse(struct net_bridge br, struct net_bridge_port p,
		struct nlattr attr, int cmd, struct netlink_ext_ack extack)
		{
		struct nlattr *tb[IFLA_BRIDGE_MRP_MAX + 1];
		int err;

		if (br->stp_enabled != BR_NO_STP) {
		NL_SET_ERR_MSG_MOD(extack, "MRP can't be enabled if STP is already enabled\n");
		return -EINVAL;
		}

		err = nla_parse_nested(tb, IFLA_BRIDGE_MRP_MAX, attr,
		br_mrp_policy, extack);
		if (err)
		return err;

		if (tb[IFLA_BRIDGE_MRP_INSTANCE]) {
		struct br_mrp_instance *instance =
		nla_data(tb[IFLA_BRIDGE_MRP_INSTANCE]);

		if (cmd == RTM_SETLINK)
		err = br_mrp_add(br, instance);
		else
		err = br_mrp_del(br, instance);
		if (err)
		return err;
		}

		if (tb[IFLA_BRIDGE_MRP_PORT_STATE]) {
		enum br_mrp_port_state_type state =
		nla_get_u32(tb[IFLA_BRIDGE_MRP_PORT_STATE]);

		err = br_mrp_set_port_state(p, state);
		if (err)
		return err;
		}

		if (tb[IFLA_BRIDGE_MRP_PORT_ROLE]) {
		struct br_mrp_port_role *role =
		nla_data(tb[IFLA_BRIDGE_MRP_PORT_ROLE]);

		err = br_mrp_set_port_role(p, role);
		if (err)
		return err;
		}

		if (tb[IFLA_BRIDGE_MRP_RING_STATE]) {
		struct br_mrp_ring_state *state =
		nla_data(tb[IFLA_BRIDGE_MRP_RING_STATE]);

		err = br_mrp_set_ring_state(br, state);
		if (err)
		return err;
		}

		if (tb[IFLA_BRIDGE_MRP_RING_ROLE]) {
		struct br_mrp_ring_role *role =
		nla_data(tb[IFLA_BRIDGE_MRP_RING_ROLE]);

		err = br_mrp_set_ring_role(br, role);
		if (err)
		return err;
		}

		if (tb[IFLA_BRIDGE_MRP_START_TEST]) {
		struct br_mrp_start_test *test =
		nla_data(tb[IFLA_BRIDGE_MRP_START_TEST]);

		err = br_mrp_start_test(br, test);
		if (err)
		return err;
		}

		return 0;
		}

		int br_mrp_port_open(struct net_device *dev, u8 loc)
		{
		struct net_bridge_port *p;

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