projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 9a9f26e8 HV |
1 | // SPDX-License-Identifier: GPL-2.0-or-later |
| 2 | ||
| 3 | #include <net/genetlink.h> | |
| 4 | ||
| 5 | #include <uapi/linux/mrp_bridge.h> | |
| 6 | #include "br_private.h" | |
| 7 | #include "br_private_mrp.h" | |
| 8 | ||
| 4d02b8f0 HV |
9 | static const struct nla_policy br_mrp_policy[IFLA_BRIDGE_MRP_MAX + 1] = { |
| 10 | [IFLA_BRIDGE_MRP_UNSPEC] = { .type = NLA_REJECT }, | |
| 11 | [IFLA_BRIDGE_MRP_INSTANCE] = { .type = NLA_EXACT_LEN, | |
| 12 | .len = sizeof(struct br_mrp_instance)}, | |
| 13 | [IFLA_BRIDGE_MRP_PORT_STATE] = { .type = NLA_U32 }, | |
| 14 | [IFLA_BRIDGE_MRP_PORT_ROLE] = { .type = NLA_EXACT_LEN, | |
| 15 | .len = sizeof(struct br_mrp_port_role)}, | |
| 16 | [IFLA_BRIDGE_MRP_RING_STATE] = { .type = NLA_EXACT_LEN, | |
| 17 | .len = sizeof(struct br_mrp_ring_state)}, | |
| 18 | [IFLA_BRIDGE_MRP_RING_ROLE] = { .type = NLA_EXACT_LEN, | |
| 19 | .len = sizeof(struct br_mrp_ring_role)}, | |
| 20 | [IFLA_BRIDGE_MRP_START_TEST] = { .type = NLA_EXACT_LEN, | |
| 21 | .len = sizeof(struct br_mrp_start_test)}, | |
| 22 | }; | |
| 23 | ||
| 24 | int br_mrp_parse(struct net_bridge *br, struct net_bridge_port *p, | |
| 25 | struct nlattr *attr, int cmd, struct netlink_ext_ack *extack) | |
| 26 | { | |
| 27 | struct nlattr *tb[IFLA_BRIDGE_MRP_MAX + 1]; | |
| 28 | int err; | |
| 29 | ||
| 30 | if (br->stp_enabled != BR_NO_STP) { | |
| c75a33c8 | 31 | NL_SET_ERR_MSG_MOD(extack, "MRP can't be enabled if STP is already enabled"); |
| 4d02b8f0 HV |
32 | return -EINVAL; |
| 33 | } | |
| 34 | ||
| 35 | err = nla_parse_nested(tb, IFLA_BRIDGE_MRP_MAX, attr, | |
| 36 | br_mrp_policy, extack); | |
| 37 | if (err) | |
| 38 | return err; | |
| 39 | ||
| 40 | if (tb[IFLA_BRIDGE_MRP_INSTANCE]) { | |
| 41 | struct br_mrp_instance *instance = | |
| 42 | nla_data(tb[IFLA_BRIDGE_MRP_INSTANCE]); | |
| 43 | ||
| 44 | if (cmd == RTM_SETLINK) | |
| 45 | err = br_mrp_add(br, instance); | |
| 46 | else | |
| 47 | err = br_mrp_del(br, instance); | |
| 48 | if (err) | |
| 49 | return err; | |
| 50 | } | |
| 51 | ||
| 52 | if (tb[IFLA_BRIDGE_MRP_PORT_STATE]) { | |
| 53 | enum br_mrp_port_state_type state = | |
| 54 | nla_get_u32(tb[IFLA_BRIDGE_MRP_PORT_STATE]); | |
| 55 | ||
| 56 | err = br_mrp_set_port_state(p, state); | |
| 57 | if (err) | |
| 58 | return err; | |
| 59 | } | |
| 60 | ||
| 61 | if (tb[IFLA_BRIDGE_MRP_PORT_ROLE]) { | |
| 62 | struct br_mrp_port_role *role = | |
| 63 | nla_data(tb[IFLA_BRIDGE_MRP_PORT_ROLE]); | |
| 64 | ||
| 65 | err = br_mrp_set_port_role(p, role); | |
| 66 | if (err) | |
| 67 | return err; | |
| 68 | } | |
| 69 | ||
| 70 | if (tb[IFLA_BRIDGE_MRP_RING_STATE]) { | |
| 71 | struct br_mrp_ring_state *state = | |
| 72 | nla_data(tb[IFLA_BRIDGE_MRP_RING_STATE]); | |
| 73 | ||
| 74 | err = br_mrp_set_ring_state(br, state); | |
| 75 | if (err) | |
| 76 | return err; | |
| 77 | } | |
| 78 | ||
| 79 | if (tb[IFLA_BRIDGE_MRP_RING_ROLE]) { | |
| 80 | struct br_mrp_ring_role *role = | |
| 81 | nla_data(tb[IFLA_BRIDGE_MRP_RING_ROLE]); | |
| 82 | ||
| 83 | err = br_mrp_set_ring_role(br, role); | |
| 84 | if (err) | |
| 85 | return err; | |
| 86 | } | |
| 87 | ||
| 88 | if (tb[IFLA_BRIDGE_MRP_START_TEST]) { | |
| 89 | struct br_mrp_start_test *test = | |
| 90 | nla_data(tb[IFLA_BRIDGE_MRP_START_TEST]); | |
| 91 | ||
| 92 | err = br_mrp_start_test(br, test); | |
| 93 | if (err) | |
| 94 | return err; | |
| 95 | } | |
| 96 | ||
| 97 | return 0; | |
| 98 | } | |
| 99 | ||
| 9a9f26e8 HV |
100 | int br_mrp_port_open(struct net_device *dev, u8 loc) |
| 101 | { | |
| 102 | struct net_bridge_port *p; | |
| 103 | int err = 0; | |
| 104 | ||
| 105 | p = br_port_get_rcu(dev); | |
| 106 | if (!p) { | |
| 107 | err = -EINVAL; | |
| 108 | goto out; | |
| 109 | } | |
| 110 | ||
| 111 | if (loc) | |
| 112 | p->flags |= BR_MRP_LOST_CONT; | |
| 113 | else | |
| 114 | p->flags &= ~BR_MRP_LOST_CONT; | |
| 115 | ||
| 116 | br_ifinfo_notify(RTM_NEWLINK, NULL, p); | |
| 117 | ||
| 118 | out: | |
| 119 | return err; | |
| 120 | } |