| // SPDX-License-Identifier: GPL-2.0-or-later |
| /* |
| * drivers/net/bond/bond_netlink.c - Netlink interface for bonding |
| * Copyright (c) 2013 Jiri Pirko <jiri@resnulli.us> |
| * Copyright (c) 2013 Scott Feldman <sfeldma@cumulusnetworks.com> |
| */ |
| |
| #include <linux/module.h> |
| #include <linux/errno.h> |
| #include <linux/netdevice.h> |
| #include <linux/etherdevice.h> |
| #include <linux/if_link.h> |
| #include <linux/if_ether.h> |
| #include <net/netlink.h> |
| #include <net/rtnetlink.h> |
| #include <net/bonding.h> |
| #include <net/ipv6.h> |
| |
| static size_t bond_get_slave_size(const struct net_device *bond_dev, |
| const struct net_device *slave_dev) |
| { |
| return nla_total_size(sizeof(u8)) + /* IFLA_BOND_SLAVE_STATE */ |
| nla_total_size(sizeof(u8)) + /* IFLA_BOND_SLAVE_MII_STATUS */ |
| nla_total_size(sizeof(u32)) + /* IFLA_BOND_SLAVE_LINK_FAILURE_COUNT */ |
| nla_total_size(MAX_ADDR_LEN) + /* IFLA_BOND_SLAVE_PERM_HWADDR */ |
| nla_total_size(sizeof(u16)) + /* IFLA_BOND_SLAVE_QUEUE_ID */ |
| nla_total_size(sizeof(u16)) + /* IFLA_BOND_SLAVE_AD_AGGREGATOR_ID */ |
| nla_total_size(sizeof(u8)) + /* IFLA_BOND_SLAVE_AD_ACTOR_OPER_PORT_STATE */ |
| nla_total_size(sizeof(u16)) + /* IFLA_BOND_SLAVE_AD_PARTNER_OPER_PORT_STATE */ |
| nla_total_size(sizeof(s32)) + /* IFLA_BOND_SLAVE_PRIO */ |
| 0; |
| } |
| |
| static int bond_fill_slave_info(struct sk_buff *skb, |
| const struct net_device *bond_dev, |
| const struct net_device *slave_dev) |
| { |
| struct slave *slave = bond_slave_get_rtnl(slave_dev); |
| |
| if (nla_put_u8(skb, IFLA_BOND_SLAVE_STATE, bond_slave_state(slave))) |
| goto nla_put_failure; |
| |
| if (nla_put_u8(skb, IFLA_BOND_SLAVE_MII_STATUS, slave->link)) |
| goto nla_put_failure; |
| |
| if (nla_put_u32(skb, IFLA_BOND_SLAVE_LINK_FAILURE_COUNT, |
| slave->link_failure_count)) |
| goto nla_put_failure; |
| |
| if (nla_put(skb, IFLA_BOND_SLAVE_PERM_HWADDR, |
| slave_dev->addr_len, slave->perm_hwaddr)) |
| goto nla_put_failure; |
| |
| if (nla_put_u16(skb, IFLA_BOND_SLAVE_QUEUE_ID, |
| READ_ONCE(slave->queue_id))) |
| goto nla_put_failure; |
| |
| if (nla_put_s32(skb, IFLA_BOND_SLAVE_PRIO, slave->prio)) |
| goto nla_put_failure; |
| |
| if (BOND_MODE(slave->bond) == BOND_MODE_8023AD) { |
| const struct aggregator *agg; |
| const struct port *ad_port; |
| |
| ad_port = &SLAVE_AD_INFO(slave)->port; |
| agg = SLAVE_AD_INFO(slave)->port.aggregator; |
| if (agg) { |
| if (nla_put_u16(skb, IFLA_BOND_SLAVE_AD_AGGREGATOR_ID, |
| agg->aggregator_identifier)) |
| goto nla_put_failure; |
| if (nla_put_u8(skb, |
| IFLA_BOND_SLAVE_AD_ACTOR_OPER_PORT_STATE, |
| ad_port->actor_oper_port_state)) |
| goto nla_put_failure; |
| if (nla_put_u16(skb, |
| IFLA_BOND_SLAVE_AD_PARTNER_OPER_PORT_STATE, |
| ad_port->partner_oper.port_state)) |
| goto nla_put_failure; |
| } |
| } |
| |
| return 0; |
| |
| nla_put_failure: |
| return -EMSGSIZE; |
| } |
| |
| /* Limit the max delay range to 300s */ |
| static const struct netlink_range_validation delay_range = { |
| .max = 300000, |
| }; |
| |
| static const struct nla_policy bond_policy[IFLA_BOND_MAX + 1] = { |
| [IFLA_BOND_MODE] = { .type = NLA_U8 }, |
| [IFLA_BOND_ACTIVE_SLAVE] = { .type = NLA_U32 }, |
| [IFLA_BOND_MIIMON] = { .type = NLA_U32 }, |
| [IFLA_BOND_UPDELAY] = { .type = NLA_U32 }, |
| [IFLA_BOND_DOWNDELAY] = { .type = NLA_U32 }, |
| [IFLA_BOND_USE_CARRIER] = { .type = NLA_U8 }, |
| [IFLA_BOND_ARP_INTERVAL] = { .type = NLA_U32 }, |
| [IFLA_BOND_ARP_IP_TARGET] = { .type = NLA_NESTED }, |
| [IFLA_BOND_ARP_VALIDATE] = { .type = NLA_U32 }, |
| [IFLA_BOND_ARP_ALL_TARGETS] = { .type = NLA_U32 }, |
| [IFLA_BOND_PRIMARY] = { .type = NLA_U32 }, |
| [IFLA_BOND_PRIMARY_RESELECT] = { .type = NLA_U8 }, |
| [IFLA_BOND_FAIL_OVER_MAC] = { .type = NLA_U8 }, |
| [IFLA_BOND_XMIT_HASH_POLICY] = { .type = NLA_U8 }, |
| [IFLA_BOND_RESEND_IGMP] = { .type = NLA_U32 }, |
| [IFLA_BOND_NUM_PEER_NOTIF] = { .type = NLA_U8 }, |
| [IFLA_BOND_ALL_SLAVES_ACTIVE] = { .type = NLA_U8 }, |
| [IFLA_BOND_MIN_LINKS] = { .type = NLA_U32 }, |
| [IFLA_BOND_LP_INTERVAL] = { .type = NLA_U32 }, |
| [IFLA_BOND_PACKETS_PER_SLAVE] = { .type = NLA_U32 }, |
| [IFLA_BOND_AD_LACP_ACTIVE] = { .type = NLA_U8 }, |
| [IFLA_BOND_AD_LACP_RATE] = { .type = NLA_U8 }, |
| [IFLA_BOND_AD_SELECT] = { .type = NLA_U8 }, |
| [IFLA_BOND_AD_INFO] = { .type = NLA_NESTED }, |
| [IFLA_BOND_AD_ACTOR_SYS_PRIO] = { .type = NLA_U16 }, |
| [IFLA_BOND_AD_USER_PORT_KEY] = { .type = NLA_U16 }, |
| [IFLA_BOND_AD_ACTOR_SYSTEM] = { .type = NLA_BINARY, |
| .len = ETH_ALEN }, |
| [IFLA_BOND_TLB_DYNAMIC_LB] = { .type = NLA_U8 }, |
| [IFLA_BOND_PEER_NOTIF_DELAY] = NLA_POLICY_FULL_RANGE(NLA_U32, &delay_range), |
| [IFLA_BOND_MISSED_MAX] = { .type = NLA_U8 }, |
| [IFLA_BOND_NS_IP6_TARGET] = { .type = NLA_NESTED }, |
| [IFLA_BOND_COUPLED_CONTROL] = { .type = NLA_U8 }, |
| }; |
| |
| static const struct nla_policy bond_slave_policy[IFLA_BOND_SLAVE_MAX + 1] = { |
| [IFLA_BOND_SLAVE_QUEUE_ID] = { .type = NLA_U16 }, |
| [IFLA_BOND_SLAVE_PRIO] = { .type = NLA_S32 }, |
| }; |
| |
| static int bond_validate(struct nlattr *tb[], struct nlattr *data[], |
| struct netlink_ext_ack *extack) |
| { |
| if (tb[IFLA_ADDRESS]) { |
| if (nla_len(tb[IFLA_ADDRESS]) != ETH_ALEN) |
| return -EINVAL; |
| if (!is_valid_ether_addr(nla_data(tb[IFLA_ADDRESS]))) |
| return -EADDRNOTAVAIL; |
| } |
| return 0; |
| } |
| |
| static int bond_slave_changelink(struct net_device *bond_dev, |
| struct net_device *slave_dev, |
| struct nlattr *tb[], struct nlattr *data[], |
| struct netlink_ext_ack *extack) |
| { |
| struct bonding *bond = netdev_priv(bond_dev); |
| struct bond_opt_value newval; |
| int err; |
| |
| if (!data) |
| return 0; |
| |
| if (data[IFLA_BOND_SLAVE_QUEUE_ID]) { |
| u16 queue_id = nla_get_u16(data[IFLA_BOND_SLAVE_QUEUE_ID]); |
| char queue_id_str[IFNAMSIZ + 7]; |
| |
| /* queue_id option setting expects slave_name:queue_id */ |
| snprintf(queue_id_str, sizeof(queue_id_str), "%s:%u\n", |
| slave_dev->name, queue_id); |
| bond_opt_initstr(&newval, queue_id_str); |
| err = __bond_opt_set(bond, BOND_OPT_QUEUE_ID, &newval, |
| data[IFLA_BOND_SLAVE_QUEUE_ID], extack); |
| if (err) |
| return err; |
| } |
| |
| if (data[IFLA_BOND_SLAVE_PRIO]) { |
| int prio = nla_get_s32(data[IFLA_BOND_SLAVE_PRIO]); |
| |
| bond_opt_slave_initval(&newval, &slave_dev, prio); |
| err = __bond_opt_set(bond, BOND_OPT_PRIO, &newval, |
| data[IFLA_BOND_SLAVE_PRIO], extack); |
| if (err) |
| return err; |
| } |
| |
| return 0; |
| } |
| |
| static int bond_changelink(struct net_device *bond_dev, struct nlattr *tb[], |
| struct nlattr *data[], |
| struct netlink_ext_ack *extack) |
| { |
| struct bonding *bond = netdev_priv(bond_dev); |
| struct bond_opt_value newval; |
| int miimon = 0; |
| int err; |
| |
| if (!data) |
| return 0; |
| |
| if (data[IFLA_BOND_MODE]) { |
| int mode = nla_get_u8(data[IFLA_BOND_MODE]); |
| |
| bond_opt_initval(&newval, mode); |
| err = __bond_opt_set(bond, BOND_OPT_MODE, &newval, |
| data[IFLA_BOND_MODE], extack); |
| if (err) |
| return err; |
| } |
| if (data[IFLA_BOND_ACTIVE_SLAVE]) { |
| int ifindex = nla_get_u32(data[IFLA_BOND_ACTIVE_SLAVE]); |
| struct net_device *slave_dev; |
| char *active_slave = ""; |
| |
| if (ifindex != 0) { |
| slave_dev = __dev_get_by_index(dev_net(bond_dev), |
| ifindex); |
| if (!slave_dev) |
| return -ENODEV; |
| active_slave = slave_dev->name; |
| } |
| bond_opt_initstr(&newval, active_slave); |
| err = __bond_opt_set(bond, BOND_OPT_ACTIVE_SLAVE, &newval, |
| data[IFLA_BOND_ACTIVE_SLAVE], extack); |
| if (err) |
| return err; |
| } |
| if (data[IFLA_BOND_MIIMON]) { |
| miimon = nla_get_u32(data[IFLA_BOND_MIIMON]); |
| |
| bond_opt_initval(&newval, miimon); |
| err = __bond_opt_set(bond, BOND_OPT_MIIMON, &newval, |
| data[IFLA_BOND_MIIMON], extack); |
| if (err) |
| return err; |
| } |
| if (data[IFLA_BOND_UPDELAY]) { |
| int updelay = nla_get_u32(data[IFLA_BOND_UPDELAY]); |
| |
| bond_opt_initval(&newval, updelay); |
| err = __bond_opt_set(bond, BOND_OPT_UPDELAY, &newval, |
| data[IFLA_BOND_UPDELAY], extack); |
| if (err) |
| return err; |
| } |
| if (data[IFLA_BOND_DOWNDELAY]) { |
| int downdelay = nla_get_u32(data[IFLA_BOND_DOWNDELAY]); |
| |
| bond_opt_initval(&newval, downdelay); |
| err = __bond_opt_set(bond, BOND_OPT_DOWNDELAY, &newval, |
| data[IFLA_BOND_DOWNDELAY], extack); |
| if (err) |
| return err; |
| } |
| if (data[IFLA_BOND_PEER_NOTIF_DELAY]) { |
| int delay = nla_get_u32(data[IFLA_BOND_PEER_NOTIF_DELAY]); |
| |
| bond_opt_initval(&newval, delay); |
| err = __bond_opt_set(bond, BOND_OPT_PEER_NOTIF_DELAY, &newval, |
| data[IFLA_BOND_PEER_NOTIF_DELAY], extack); |
| if (err) |
| return err; |
| } |
| if (data[IFLA_BOND_USE_CARRIER]) { |
| int use_carrier = nla_get_u8(data[IFLA_BOND_USE_CARRIER]); |
| |
| bond_opt_initval(&newval, use_carrier); |
| err = __bond_opt_set(bond, BOND_OPT_USE_CARRIER, &newval, |
| data[IFLA_BOND_USE_CARRIER], extack); |
| if (err) |
| return err; |
| } |
| if (data[IFLA_BOND_ARP_INTERVAL]) { |
| int arp_interval = nla_get_u32(data[IFLA_BOND_ARP_INTERVAL]); |
| |
| if (arp_interval && miimon) { |
| NL_SET_ERR_MSG_ATTR(extack, data[IFLA_BOND_ARP_INTERVAL], |
| "ARP monitoring cannot be used with MII monitoring"); |
| return -EINVAL; |
| } |
| |
| bond_opt_initval(&newval, arp_interval); |
| err = __bond_opt_set(bond, BOND_OPT_ARP_INTERVAL, &newval, |
| data[IFLA_BOND_ARP_INTERVAL], extack); |
| if (err) |
| return err; |
| } |
| if (data[IFLA_BOND_ARP_IP_TARGET]) { |
| struct nlattr *attr; |
| int i = 0, rem; |
| |
| bond_option_arp_ip_targets_clear(bond); |
| nla_for_each_nested(attr, data[IFLA_BOND_ARP_IP_TARGET], rem) { |
| __be32 target; |
| |
| if (nla_len(attr) < sizeof(target)) |
| return -EINVAL; |
| |
| target = nla_get_be32(attr); |
| |
| bond_opt_initval(&newval, (__force u64)target); |
| err = __bond_opt_set(bond, BOND_OPT_ARP_TARGETS, |
| &newval, |
| data[IFLA_BOND_ARP_IP_TARGET], |
| extack); |
| if (err) |
| break; |
| i++; |
| } |
| if (i == 0 && bond->params.arp_interval) |
| netdev_warn(bond->dev, "Removing last arp target with arp_interval on\n"); |
| if (err) |
| return err; |
| } |
| #if IS_ENABLED(CONFIG_IPV6) |
| if (data[IFLA_BOND_NS_IP6_TARGET]) { |
| struct nlattr *attr; |
| int i = 0, rem; |
| |
| bond_option_ns_ip6_targets_clear(bond); |
| nla_for_each_nested(attr, data[IFLA_BOND_NS_IP6_TARGET], rem) { |
| struct in6_addr addr6; |
| |
| if (nla_len(attr) < sizeof(addr6)) { |
| NL_SET_ERR_MSG(extack, "Invalid IPv6 address"); |
| return -EINVAL; |
| } |
| |
| addr6 = nla_get_in6_addr(attr); |
| |
| bond_opt_initextra(&newval, &addr6, sizeof(addr6)); |
| err = __bond_opt_set(bond, BOND_OPT_NS_TARGETS, |
| &newval, |
| data[IFLA_BOND_NS_IP6_TARGET], |
| extack); |
| if (err) |
| break; |
| i++; |
| } |
| if (i == 0 && bond->params.arp_interval) |
| netdev_warn(bond->dev, "Removing last ns target with arp_interval on\n"); |
| if (err) |
| return err; |
| } |
| #endif |
| if (data[IFLA_BOND_ARP_VALIDATE]) { |
| int arp_validate = nla_get_u32(data[IFLA_BOND_ARP_VALIDATE]); |
| |
| if (arp_validate && miimon) { |
| NL_SET_ERR_MSG_ATTR(extack, data[IFLA_BOND_ARP_INTERVAL], |
| "ARP validating cannot be used with MII monitoring"); |
| return -EINVAL; |
| } |
| |
| bond_opt_initval(&newval, arp_validate); |
| err = __bond_opt_set(bond, BOND_OPT_ARP_VALIDATE, &newval, |
| data[IFLA_BOND_ARP_VALIDATE], extack); |
| if (err) |
| return err; |
| } |
| if (data[IFLA_BOND_ARP_ALL_TARGETS]) { |
| int arp_all_targets = |
| nla_get_u32(data[IFLA_BOND_ARP_ALL_TARGETS]); |
| |
| bond_opt_initval(&newval, arp_all_targets); |
| err = __bond_opt_set(bond, BOND_OPT_ARP_ALL_TARGETS, &newval, |
| data[IFLA_BOND_ARP_ALL_TARGETS], extack); |
| if (err) |
| return err; |
| } |
| if (data[IFLA_BOND_PRIMARY]) { |
| int ifindex = nla_get_u32(data[IFLA_BOND_PRIMARY]); |
| struct net_device *dev; |
| char *primary = ""; |
| |
| dev = __dev_get_by_index(dev_net(bond_dev), ifindex); |
| if (dev) |
| primary = dev->name; |
| |
| bond_opt_initstr(&newval, primary); |
| err = __bond_opt_set(bond, BOND_OPT_PRIMARY, &newval, |
| data[IFLA_BOND_PRIMARY], extack); |
| if (err) |
| return err; |
| } |
| if (data[IFLA_BOND_PRIMARY_RESELECT]) { |
| int primary_reselect = |
| nla_get_u8(data[IFLA_BOND_PRIMARY_RESELECT]); |
| |
| bond_opt_initval(&newval, primary_reselect); |
| err = __bond_opt_set(bond, BOND_OPT_PRIMARY_RESELECT, &newval, |
| data[IFLA_BOND_PRIMARY_RESELECT], extack); |
| if (err) |
| return err; |
| } |
| if (data[IFLA_BOND_FAIL_OVER_MAC]) { |
| int fail_over_mac = |
| nla_get_u8(data[IFLA_BOND_FAIL_OVER_MAC]); |
| |
| bond_opt_initval(&newval, fail_over_mac); |
| err = __bond_opt_set(bond, BOND_OPT_FAIL_OVER_MAC, &newval, |
| data[IFLA_BOND_FAIL_OVER_MAC], extack); |
| if (err) |
| return err; |
| } |
| if (data[IFLA_BOND_XMIT_HASH_POLICY]) { |
| int xmit_hash_policy = |
| nla_get_u8(data[IFLA_BOND_XMIT_HASH_POLICY]); |
| |
| bond_opt_initval(&newval, xmit_hash_policy); |
| err = __bond_opt_set(bond, BOND_OPT_XMIT_HASH, &newval, |
| data[IFLA_BOND_XMIT_HASH_POLICY], extack); |
| if (err) |
| return err; |
| } |
| if (data[IFLA_BOND_RESEND_IGMP]) { |
| int resend_igmp = |
| nla_get_u32(data[IFLA_BOND_RESEND_IGMP]); |
| |
| bond_opt_initval(&newval, resend_igmp); |
| err = __bond_opt_set(bond, BOND_OPT_RESEND_IGMP, &newval, |
| data[IFLA_BOND_RESEND_IGMP], extack); |
| if (err) |
| return err; |
| } |
| if (data[IFLA_BOND_NUM_PEER_NOTIF]) { |
| int num_peer_notif = |
| nla_get_u8(data[IFLA_BOND_NUM_PEER_NOTIF]); |
| |
| bond_opt_initval(&newval, num_peer_notif); |
| err = __bond_opt_set(bond, BOND_OPT_NUM_PEER_NOTIF, &newval, |
| data[IFLA_BOND_NUM_PEER_NOTIF], extack); |
| if (err) |
| return err; |
| } |
| if (data[IFLA_BOND_ALL_SLAVES_ACTIVE]) { |
| int all_slaves_active = |
| nla_get_u8(data[IFLA_BOND_ALL_SLAVES_ACTIVE]); |
| |
| bond_opt_initval(&newval, all_slaves_active); |
| err = __bond_opt_set(bond, BOND_OPT_ALL_SLAVES_ACTIVE, &newval, |
| data[IFLA_BOND_ALL_SLAVES_ACTIVE], extack); |
| if (err) |
| return err; |
| } |
| if (data[IFLA_BOND_MIN_LINKS]) { |
| int min_links = |
| nla_get_u32(data[IFLA_BOND_MIN_LINKS]); |
| |
| bond_opt_initval(&newval, min_links); |
| err = __bond_opt_set(bond, BOND_OPT_MINLINKS, &newval, |
| data[IFLA_BOND_MIN_LINKS], extack); |
| if (err) |
| return err; |
| } |
| if (data[IFLA_BOND_LP_INTERVAL]) { |
| int lp_interval = |
| nla_get_u32(data[IFLA_BOND_LP_INTERVAL]); |
| |
| bond_opt_initval(&newval, lp_interval); |
| err = __bond_opt_set(bond, BOND_OPT_LP_INTERVAL, &newval, |
| data[IFLA_BOND_LP_INTERVAL], extack); |
| if (err) |
| return err; |
| } |
| if (data[IFLA_BOND_PACKETS_PER_SLAVE]) { |
| int packets_per_slave = |
| nla_get_u32(data[IFLA_BOND_PACKETS_PER_SLAVE]); |
| |
| bond_opt_initval(&newval, packets_per_slave); |
| err = __bond_opt_set(bond, BOND_OPT_PACKETS_PER_SLAVE, &newval, |
| data[IFLA_BOND_PACKETS_PER_SLAVE], extack); |
| if (err) |
| return err; |
| } |
| |
| if (data[IFLA_BOND_AD_LACP_ACTIVE]) { |
| int lacp_active = nla_get_u8(data[IFLA_BOND_AD_LACP_ACTIVE]); |
| |
| bond_opt_initval(&newval, lacp_active); |
| err = __bond_opt_set(bond, BOND_OPT_LACP_ACTIVE, &newval, |
| data[IFLA_BOND_AD_LACP_ACTIVE], extack); |
| if (err) |
| return err; |
| } |
| |
| if (data[IFLA_BOND_AD_LACP_RATE]) { |
| int lacp_rate = |
| nla_get_u8(data[IFLA_BOND_AD_LACP_RATE]); |
| |
| bond_opt_initval(&newval, lacp_rate); |
| err = __bond_opt_set(bond, BOND_OPT_LACP_RATE, &newval, |
| data[IFLA_BOND_AD_LACP_RATE], extack); |
| if (err) |
| return err; |
| } |
| if (data[IFLA_BOND_AD_SELECT]) { |
| int ad_select = |
| nla_get_u8(data[IFLA_BOND_AD_SELECT]); |
| |
| bond_opt_initval(&newval, ad_select); |
| err = __bond_opt_set(bond, BOND_OPT_AD_SELECT, &newval, |
| data[IFLA_BOND_AD_SELECT], extack); |
| if (err) |
| return err; |
| } |
| if (data[IFLA_BOND_AD_ACTOR_SYS_PRIO]) { |
| int actor_sys_prio = |
| nla_get_u16(data[IFLA_BOND_AD_ACTOR_SYS_PRIO]); |
| |
| bond_opt_initval(&newval, actor_sys_prio); |
| err = __bond_opt_set(bond, BOND_OPT_AD_ACTOR_SYS_PRIO, &newval, |
| data[IFLA_BOND_AD_ACTOR_SYS_PRIO], extack); |
| if (err) |
| return err; |
| } |
| if (data[IFLA_BOND_AD_USER_PORT_KEY]) { |
| int port_key = |
| nla_get_u16(data[IFLA_BOND_AD_USER_PORT_KEY]); |
| |
| bond_opt_initval(&newval, port_key); |
| err = __bond_opt_set(bond, BOND_OPT_AD_USER_PORT_KEY, &newval, |
| data[IFLA_BOND_AD_USER_PORT_KEY], extack); |
| if (err) |
| return err; |
| } |
| if (data[IFLA_BOND_AD_ACTOR_SYSTEM]) { |
| if (nla_len(data[IFLA_BOND_AD_ACTOR_SYSTEM]) != ETH_ALEN) |
| return -EINVAL; |
| |
| bond_opt_initval(&newval, |
| nla_get_u64(data[IFLA_BOND_AD_ACTOR_SYSTEM])); |
| err = __bond_opt_set(bond, BOND_OPT_AD_ACTOR_SYSTEM, &newval, |
| data[IFLA_BOND_AD_ACTOR_SYSTEM], extack); |
| if (err) |
| return err; |
| } |
| if (data[IFLA_BOND_TLB_DYNAMIC_LB]) { |
| int dynamic_lb = nla_get_u8(data[IFLA_BOND_TLB_DYNAMIC_LB]); |
| |
| bond_opt_initval(&newval, dynamic_lb); |
| err = __bond_opt_set(bond, BOND_OPT_TLB_DYNAMIC_LB, &newval, |
| data[IFLA_BOND_TLB_DYNAMIC_LB], extack); |
| if (err) |
| return err; |
| } |
| |
| if (data[IFLA_BOND_MISSED_MAX]) { |
| int missed_max = nla_get_u8(data[IFLA_BOND_MISSED_MAX]); |
| |
| bond_opt_initval(&newval, missed_max); |
| err = __bond_opt_set(bond, BOND_OPT_MISSED_MAX, &newval, |
| data[IFLA_BOND_MISSED_MAX], extack); |
| if (err) |
| return err; |
| } |
| |
| if (data[IFLA_BOND_COUPLED_CONTROL]) { |
| int coupled_control = nla_get_u8(data[IFLA_BOND_COUPLED_CONTROL]); |
| |
| bond_opt_initval(&newval, coupled_control); |
| err = __bond_opt_set(bond, BOND_OPT_COUPLED_CONTROL, &newval, |
| data[IFLA_BOND_COUPLED_CONTROL], extack); |
| if (err) |
| return err; |
| } |
| |
| return 0; |
| } |
| |
| static int bond_newlink(struct net *src_net, struct net_device *bond_dev, |
| struct nlattr *tb[], struct nlattr *data[], |
| struct netlink_ext_ack *extack) |
| { |
| int err; |
| |
| err = bond_changelink(bond_dev, tb, data, extack); |
| if (err < 0) |
| return err; |
| |
| err = register_netdevice(bond_dev); |
| if (!err) { |
| struct bonding *bond = netdev_priv(bond_dev); |
| |
| netif_carrier_off(bond_dev); |
| bond_work_init_all(bond); |
| } |
| |
| return err; |
| } |
| |
| static size_t bond_get_size(const struct net_device *bond_dev) |
| { |
| return nla_total_size(sizeof(u8)) + /* IFLA_BOND_MODE */ |
| nla_total_size(sizeof(u32)) + /* IFLA_BOND_ACTIVE_SLAVE */ |
| nla_total_size(sizeof(u32)) + /* IFLA_BOND_MIIMON */ |
| nla_total_size(sizeof(u32)) + /* IFLA_BOND_UPDELAY */ |
| nla_total_size(sizeof(u32)) + /* IFLA_BOND_DOWNDELAY */ |
| nla_total_size(sizeof(u8)) + /* IFLA_BOND_USE_CARRIER */ |
| nla_total_size(sizeof(u32)) + /* IFLA_BOND_ARP_INTERVAL */ |
| /* IFLA_BOND_ARP_IP_TARGET */ |
| nla_total_size(sizeof(struct nlattr)) + |
| nla_total_size(sizeof(u32)) * BOND_MAX_ARP_TARGETS + |
| nla_total_size(sizeof(u32)) + /* IFLA_BOND_ARP_VALIDATE */ |
| nla_total_size(sizeof(u32)) + /* IFLA_BOND_ARP_ALL_TARGETS */ |
| nla_total_size(sizeof(u32)) + /* IFLA_BOND_PRIMARY */ |
| nla_total_size(sizeof(u8)) + /* IFLA_BOND_PRIMARY_RESELECT */ |
| nla_total_size(sizeof(u8)) + /* IFLA_BOND_FAIL_OVER_MAC */ |
| nla_total_size(sizeof(u8)) + /* IFLA_BOND_XMIT_HASH_POLICY */ |
| nla_total_size(sizeof(u32)) + /* IFLA_BOND_RESEND_IGMP */ |
| nla_total_size(sizeof(u8)) + /* IFLA_BOND_NUM_PEER_NOTIF */ |
| nla_total_size(sizeof(u8)) + /* IFLA_BOND_ALL_SLAVES_ACTIVE */ |
| nla_total_size(sizeof(u32)) + /* IFLA_BOND_MIN_LINKS */ |
| nla_total_size(sizeof(u32)) + /* IFLA_BOND_LP_INTERVAL */ |
| nla_total_size(sizeof(u32)) + /* IFLA_BOND_PACKETS_PER_SLAVE */ |
| nla_total_size(sizeof(u8)) + /* IFLA_BOND_AD_LACP_ACTIVE */ |
| nla_total_size(sizeof(u8)) + /* IFLA_BOND_AD_LACP_RATE */ |
| nla_total_size(sizeof(u8)) + /* IFLA_BOND_AD_SELECT */ |
| nla_total_size(sizeof(struct nlattr)) + /* IFLA_BOND_AD_INFO */ |
| nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_INFO_AGGREGATOR */ |
| nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_INFO_NUM_PORTS */ |
| nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_INFO_ACTOR_KEY */ |
| nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_INFO_PARTNER_KEY*/ |
| nla_total_size(ETH_ALEN) + /* IFLA_BOND_AD_INFO_PARTNER_MAC*/ |
| nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_ACTOR_SYS_PRIO */ |
| nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_USER_PORT_KEY */ |
| nla_total_size(ETH_ALEN) + /* IFLA_BOND_AD_ACTOR_SYSTEM */ |
| nla_total_size(sizeof(u8)) + /* IFLA_BOND_TLB_DYNAMIC_LB */ |
| nla_total_size(sizeof(u32)) + /* IFLA_BOND_PEER_NOTIF_DELAY */ |
| nla_total_size(sizeof(u8)) + /* IFLA_BOND_MISSED_MAX */ |
| /* IFLA_BOND_NS_IP6_TARGET */ |
| nla_total_size(sizeof(struct nlattr)) + |
| nla_total_size(sizeof(struct in6_addr)) * BOND_MAX_NS_TARGETS + |
| nla_total_size(sizeof(u8)) + /* IFLA_BOND_COUPLED_CONTROL */ |
| 0; |
| } |
| |
| static int bond_option_active_slave_get_ifindex(struct bonding *bond) |
| { |
| const struct net_device *slave; |
| int ifindex; |
| |
| rcu_read_lock(); |
| slave = bond_option_active_slave_get_rcu(bond); |
| ifindex = slave ? slave->ifindex : 0; |
| rcu_read_unlock(); |
| return ifindex; |
| } |
| |
| static int bond_fill_info(struct sk_buff *skb, |
| const struct net_device *bond_dev) |
| { |
| struct bonding *bond = netdev_priv(bond_dev); |
| unsigned int packets_per_slave; |
| int ifindex, i, targets_added; |
| struct nlattr *targets; |
| struct slave *primary; |
| |
| if (nla_put_u8(skb, IFLA_BOND_MODE, BOND_MODE(bond))) |
| goto nla_put_failure; |
| |
| ifindex = bond_option_active_slave_get_ifindex(bond); |
| if (ifindex && nla_put_u32(skb, IFLA_BOND_ACTIVE_SLAVE, ifindex)) |
| goto nla_put_failure; |
| |
| if (nla_put_u32(skb, IFLA_BOND_MIIMON, bond->params.miimon)) |
| goto nla_put_failure; |
| |
| if (nla_put_u32(skb, IFLA_BOND_UPDELAY, |
| bond->params.updelay * bond->params.miimon)) |
| goto nla_put_failure; |
| |
| if (nla_put_u32(skb, IFLA_BOND_DOWNDELAY, |
| bond->params.downdelay * bond->params.miimon)) |
| goto nla_put_failure; |
| |
| if (nla_put_u32(skb, IFLA_BOND_PEER_NOTIF_DELAY, |
| bond->params.peer_notif_delay * bond->params.miimon)) |
| goto nla_put_failure; |
| |
| if (nla_put_u8(skb, IFLA_BOND_USE_CARRIER, bond->params.use_carrier)) |
| goto nla_put_failure; |
| |
| if (nla_put_u32(skb, IFLA_BOND_ARP_INTERVAL, bond->params.arp_interval)) |
| goto nla_put_failure; |
| |
| targets = nla_nest_start_noflag(skb, IFLA_BOND_ARP_IP_TARGET); |
| if (!targets) |
| goto nla_put_failure; |
| |
| targets_added = 0; |
| for (i = 0; i < BOND_MAX_ARP_TARGETS; i++) { |
| if (bond->params.arp_targets[i]) { |
| if (nla_put_be32(skb, i, bond->params.arp_targets[i])) |
| goto nla_put_failure; |
| targets_added = 1; |
| } |
| } |
| |
| if (targets_added) |
| nla_nest_end(skb, targets); |
| else |
| nla_nest_cancel(skb, targets); |
| |
| if (nla_put_u32(skb, IFLA_BOND_ARP_VALIDATE, bond->params.arp_validate)) |
| goto nla_put_failure; |
| |
| if (nla_put_u32(skb, IFLA_BOND_ARP_ALL_TARGETS, |
| bond->params.arp_all_targets)) |
| goto nla_put_failure; |
| |
| #if IS_ENABLED(CONFIG_IPV6) |
| targets = nla_nest_start(skb, IFLA_BOND_NS_IP6_TARGET); |
| if (!targets) |
| goto nla_put_failure; |
| |
| targets_added = 0; |
| for (i = 0; i < BOND_MAX_NS_TARGETS; i++) { |
| if (!ipv6_addr_any(&bond->params.ns_targets[i])) { |
| if (nla_put_in6_addr(skb, i, &bond->params.ns_targets[i])) |
| goto nla_put_failure; |
| targets_added = 1; |
| } |
| } |
| |
| if (targets_added) |
| nla_nest_end(skb, targets); |
| else |
| nla_nest_cancel(skb, targets); |
| #endif |
| |
| primary = rtnl_dereference(bond->primary_slave); |
| if (primary && |
| nla_put_u32(skb, IFLA_BOND_PRIMARY, primary->dev->ifindex)) |
| goto nla_put_failure; |
| |
| if (nla_put_u8(skb, IFLA_BOND_PRIMARY_RESELECT, |
| bond->params.primary_reselect)) |
| goto nla_put_failure; |
| |
| if (nla_put_u8(skb, IFLA_BOND_FAIL_OVER_MAC, |
| bond->params.fail_over_mac)) |
| goto nla_put_failure; |
| |
| if (nla_put_u8(skb, IFLA_BOND_XMIT_HASH_POLICY, |
| bond->params.xmit_policy)) |
| goto nla_put_failure; |
| |
| if (nla_put_u32(skb, IFLA_BOND_RESEND_IGMP, |
| bond->params.resend_igmp)) |
| goto nla_put_failure; |
| |
| if (nla_put_u8(skb, IFLA_BOND_NUM_PEER_NOTIF, |
| bond->params.num_peer_notif)) |
| goto nla_put_failure; |
| |
| if (nla_put_u8(skb, IFLA_BOND_ALL_SLAVES_ACTIVE, |
| bond->params.all_slaves_active)) |
| goto nla_put_failure; |
| |
| if (nla_put_u32(skb, IFLA_BOND_MIN_LINKS, |
| bond->params.min_links)) |
| goto nla_put_failure; |
| |
| if (nla_put_u32(skb, IFLA_BOND_LP_INTERVAL, |
| bond->params.lp_interval)) |
| goto nla_put_failure; |
| |
| packets_per_slave = bond->params.packets_per_slave; |
| if (nla_put_u32(skb, IFLA_BOND_PACKETS_PER_SLAVE, |
| packets_per_slave)) |
| goto nla_put_failure; |
| |
| if (nla_put_u8(skb, IFLA_BOND_AD_LACP_ACTIVE, |
| bond->params.lacp_active)) |
| goto nla_put_failure; |
| |
| if (nla_put_u8(skb, IFLA_BOND_AD_LACP_RATE, |
| bond->params.lacp_fast)) |
| goto nla_put_failure; |
| |
| if (nla_put_u8(skb, IFLA_BOND_AD_SELECT, |
| bond->params.ad_select)) |
| goto nla_put_failure; |
| |
| if (nla_put_u8(skb, IFLA_BOND_TLB_DYNAMIC_LB, |
| bond->params.tlb_dynamic_lb)) |
| goto nla_put_failure; |
| |
| if (nla_put_u8(skb, IFLA_BOND_MISSED_MAX, |
| bond->params.missed_max)) |
| goto nla_put_failure; |
| |
| if (nla_put_u8(skb, IFLA_BOND_COUPLED_CONTROL, |
| bond->params.coupled_control)) |
| goto nla_put_failure; |
| |
| if (BOND_MODE(bond) == BOND_MODE_8023AD) { |
| struct ad_info info; |
| |
| if (capable(CAP_NET_ADMIN)) { |
| if (nla_put_u16(skb, IFLA_BOND_AD_ACTOR_SYS_PRIO, |
| bond->params.ad_actor_sys_prio)) |
| goto nla_put_failure; |
| |
| if (nla_put_u16(skb, IFLA_BOND_AD_USER_PORT_KEY, |
| bond->params.ad_user_port_key)) |
| goto nla_put_failure; |
| |
| if (nla_put(skb, IFLA_BOND_AD_ACTOR_SYSTEM, |
| ETH_ALEN, &bond->params.ad_actor_system)) |
| goto nla_put_failure; |
| } |
| if (!bond_3ad_get_active_agg_info(bond, &info)) { |
| struct nlattr *nest; |
| |
| nest = nla_nest_start_noflag(skb, IFLA_BOND_AD_INFO); |
| if (!nest) |
| goto nla_put_failure; |
| |
| if (nla_put_u16(skb, IFLA_BOND_AD_INFO_AGGREGATOR, |
| info.aggregator_id)) |
| goto nla_put_failure; |
| if (nla_put_u16(skb, IFLA_BOND_AD_INFO_NUM_PORTS, |
| info.ports)) |
| goto nla_put_failure; |
| if (nla_put_u16(skb, IFLA_BOND_AD_INFO_ACTOR_KEY, |
| info.actor_key)) |
| goto nla_put_failure; |
| if (nla_put_u16(skb, IFLA_BOND_AD_INFO_PARTNER_KEY, |
| info.partner_key)) |
| goto nla_put_failure; |
| if (nla_put(skb, IFLA_BOND_AD_INFO_PARTNER_MAC, |
| sizeof(info.partner_system), |
| &info.partner_system)) |
| goto nla_put_failure; |
| |
| nla_nest_end(skb, nest); |
| } |
| } |
| |
| return 0; |
| |
| nla_put_failure: |
| return -EMSGSIZE; |
| } |
| |
| static size_t bond_get_linkxstats_size(const struct net_device *dev, int attr) |
| { |
| switch (attr) { |
| case IFLA_STATS_LINK_XSTATS: |
| case IFLA_STATS_LINK_XSTATS_SLAVE: |
| break; |
| default: |
| return 0; |
| } |
| |
| return bond_3ad_stats_size() + nla_total_size(0); |
| } |
| |
| static int bond_fill_linkxstats(struct sk_buff *skb, |
| const struct net_device *dev, |
| int *prividx, int attr) |
| { |
| struct nlattr *nla __maybe_unused; |
| struct slave *slave = NULL; |
| struct nlattr *nest, *nest2; |
| struct bonding *bond; |
| |
| switch (attr) { |
| case IFLA_STATS_LINK_XSTATS: |
| bond = netdev_priv(dev); |
| break; |
| case IFLA_STATS_LINK_XSTATS_SLAVE: |
| slave = bond_slave_get_rtnl(dev); |
| if (!slave) |
| return 0; |
| bond = slave->bond; |
| break; |
| default: |
| return -EINVAL; |
| } |
| |
| nest = nla_nest_start_noflag(skb, LINK_XSTATS_TYPE_BOND); |
| if (!nest) |
| return -EMSGSIZE; |
| if (BOND_MODE(bond) == BOND_MODE_8023AD) { |
| struct bond_3ad_stats *stats; |
| |
| if (slave) |
| stats = &SLAVE_AD_INFO(slave)->stats; |
| else |
| stats = &BOND_AD_INFO(bond).stats; |
| |
| nest2 = nla_nest_start_noflag(skb, BOND_XSTATS_3AD); |
| if (!nest2) { |
| nla_nest_end(skb, nest); |
| return -EMSGSIZE; |
| } |
| |
| if (bond_3ad_stats_fill(skb, stats)) { |
| nla_nest_cancel(skb, nest2); |
| nla_nest_end(skb, nest); |
| return -EMSGSIZE; |
| } |
| nla_nest_end(skb, nest2); |
| } |
| nla_nest_end(skb, nest); |
| |
| return 0; |
| } |
| |
| struct rtnl_link_ops bond_link_ops __read_mostly = { |
| .kind = "bond", |
| .priv_size = sizeof(struct bonding), |
| .setup = bond_setup, |
| .maxtype = IFLA_BOND_MAX, |
| .policy = bond_policy, |
| .validate = bond_validate, |
| .newlink = bond_newlink, |
| .changelink = bond_changelink, |
| .get_size = bond_get_size, |
| .fill_info = bond_fill_info, |
| .get_num_tx_queues = bond_get_num_tx_queues, |
| .get_num_rx_queues = bond_get_num_tx_queues, /* Use the same number |
| as for TX queues */ |
| .fill_linkxstats = bond_fill_linkxstats, |
| .get_linkxstats_size = bond_get_linkxstats_size, |
| .slave_maxtype = IFLA_BOND_SLAVE_MAX, |
| .slave_policy = bond_slave_policy, |
| .slave_changelink = bond_slave_changelink, |
| .get_slave_size = bond_get_slave_size, |
| .fill_slave_info = bond_fill_slave_info, |
| }; |
| |
| int __init bond_netlink_init(void) |
| { |
| return rtnl_link_register(&bond_link_ops); |
| } |
| |
| void bond_netlink_fini(void) |
| { |
| rtnl_link_unregister(&bond_link_ops); |
| } |
| |
| MODULE_ALIAS_RTNL_LINK("bond"); |
