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// SPDX-License-Identifier: GPL-2.0-or-later
#include <net/genetlink.h>
#include <uapi/linux/mrp_bridge.h>
#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");
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;
int err = 0;
p = br_port_get_rcu(dev);
if (!p) {
err = -EINVAL;
goto out;
}
if (loc)
p->flags |= BR_MRP_LOST_CONT;
else
p->flags &= ~BR_MRP_LOST_CONT;
br_ifinfo_notify(RTM_NEWLINK, NULL, p);
out:
return err;
}
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