[mirror_ubuntu-bionic-kernel.git] / drivers / net / bonding / bond_netlink.c

/*
 * 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>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 */

#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

#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 "bonding.h"

int bond_get_slave(struct net_device *slave_dev, struct sk_buff *skb)
{
	struct slave *slave = bond_slave_get_rtnl(slave_dev);
	const struct aggregator *agg;

	if (nla_put_u8(skb, IFLA_SLAVE_STATE, bond_slave_state(slave)))
		goto nla_put_failure;

	if (nla_put_u8(skb, IFLA_SLAVE_MII_STATUS, slave->link))
		goto nla_put_failure;

	if (nla_put_u32(skb, IFLA_SLAVE_LINK_FAILURE_COUNT,
			slave->link_failure_count))
		goto nla_put_failure;

	if (nla_put(skb, IFLA_SLAVE_PERM_HWADDR,
		    slave_dev->addr_len, slave->perm_hwaddr))
		goto nla_put_failure;

	if (nla_put_u16(skb, IFLA_SLAVE_QUEUE_ID, slave->queue_id))
		goto nla_put_failure;

	if (slave->bond->params.mode == BOND_MODE_8023AD) {
		agg = SLAVE_AD_INFO(slave).port.aggregator;
		if (agg)
			if (nla_put_u16(skb, IFLA_SLAVE_AD_AGGREGATOR_ID,
					agg->aggregator_identifier))
				goto nla_put_failure;
	}

	return 0;

nla_put_failure:
	return -EMSGSIZE;
}

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_RATE]	= { .type = NLA_U8 },
	[IFLA_BOND_AD_SELECT]		= { .type = NLA_U8 },
	[IFLA_BOND_AD_INFO]		= { .type = NLA_NESTED },
};

static int bond_validate(struct nlattr *tb[], struct nlattr *data[])
{
	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_changelink(struct net_device *bond_dev,
			   struct nlattr *tb[], struct nlattr *data[])
{
	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);
		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;

		if (ifindex == 0) {
			slave_dev = NULL;
		} else {
			slave_dev = __dev_get_by_index(dev_net(bond_dev),
						       ifindex);
			if (!slave_dev)
				return -ENODEV;
		}
		err = bond_option_active_slave_set(bond, slave_dev);
		if (err)
			return err;
	}
	if (data[IFLA_BOND_MIIMON]) {
		miimon = nla_get_u32(data[IFLA_BOND_MIIMON]);

		err = bond_option_miimon_set(bond, miimon);
		if (err)
			return err;
	}
	if (data[IFLA_BOND_UPDELAY]) {
		int updelay = nla_get_u32(data[IFLA_BOND_UPDELAY]);

		err = bond_option_updelay_set(bond, updelay);
		if (err)
			return err;
	}
	if (data[IFLA_BOND_DOWNDELAY]) {
		int downdelay = nla_get_u32(data[IFLA_BOND_DOWNDELAY]);

		err = bond_option_downdelay_set(bond, downdelay);
		if (err)
			return err;
	}
	if (data[IFLA_BOND_USE_CARRIER]) {
		int use_carrier = nla_get_u8(data[IFLA_BOND_USE_CARRIER]);

		err = bond_option_use_carrier_set(bond, use_carrier);
		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) {
			pr_err("%s: ARP monitoring cannot be used with MII monitoring.\n",
			       bond->dev->name);
			return -EINVAL;
		}

		bond_opt_initval(&newval, arp_interval);
		err = __bond_opt_set(bond, BOND_OPT_ARP_INTERVAL, &newval);
		if (err)
			return err;
	}
	if (data[IFLA_BOND_ARP_IP_TARGET]) {
		__be32 targets[BOND_MAX_ARP_TARGETS] = { 0, };
		struct nlattr *attr;
		int i = 0, rem;

		nla_for_each_nested(attr, data[IFLA_BOND_ARP_IP_TARGET], rem) {
			__be32 target = nla_get_be32(attr);
			targets[i++] = target;
		}

		err = bond_option_arp_ip_targets_set(bond, targets, i);
		if (err)
			return err;
	}
	if (data[IFLA_BOND_ARP_VALIDATE]) {
		int arp_validate = nla_get_u32(data[IFLA_BOND_ARP_VALIDATE]);

		if (arp_validate && miimon) {
			pr_err("%s: ARP validating cannot be used with MII monitoring.\n",
			       bond->dev->name);
			return -EINVAL;
		}

		bond_opt_initval(&newval, arp_validate);
		err = __bond_opt_set(bond, BOND_OPT_ARP_VALIDATE, &newval);
		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);
		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;

		err = bond_option_primary_set(bond, primary);
		if (err)
			return err;
	}
	if (data[IFLA_BOND_PRIMARY_RESELECT]) {
		int primary_reselect =
			nla_get_u8(data[IFLA_BOND_PRIMARY_RESELECT]);

		err = bond_option_primary_reselect_set(bond, primary_reselect);
		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);
		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);
		if (err)
			return err;
	}
	if (data[IFLA_BOND_RESEND_IGMP]) {
		int resend_igmp =
			nla_get_u32(data[IFLA_BOND_RESEND_IGMP]);

		err = bond_option_resend_igmp_set(bond, resend_igmp);
		if (err)
			return err;
	}
	if (data[IFLA_BOND_NUM_PEER_NOTIF]) {
		int num_peer_notif =
			nla_get_u8(data[IFLA_BOND_NUM_PEER_NOTIF]);

		err = bond_option_num_peer_notif_set(bond, num_peer_notif);
		if (err)
			return err;
	}
	if (data[IFLA_BOND_ALL_SLAVES_ACTIVE]) {
		int all_slaves_active =
			nla_get_u8(data[IFLA_BOND_ALL_SLAVES_ACTIVE]);

		err = bond_option_all_slaves_active_set(bond,
							all_slaves_active);
		if (err)
			return err;
	}
	if (data[IFLA_BOND_MIN_LINKS]) {
		int min_links =
			nla_get_u32(data[IFLA_BOND_MIN_LINKS]);

		err = bond_option_min_links_set(bond, min_links);
		if (err)
			return err;
	}
	if (data[IFLA_BOND_LP_INTERVAL]) {
		int lp_interval =
			nla_get_u32(data[IFLA_BOND_LP_INTERVAL]);

		err = bond_option_lp_interval_set(bond, lp_interval);
		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);
		if (err)
			return err;
	}
	if (data[IFLA_BOND_AD_LACP_RATE]) {
		int lacp_rate =
			nla_get_u8(data[IFLA_BOND_AD_LACP_RATE]);

		err = bond_option_lacp_rate_set(bond, lacp_rate);
		if (err)
			return err;
	}
	if (data[IFLA_BOND_AD_SELECT]) {
		int ad_select =
			nla_get_u8(data[IFLA_BOND_AD_SELECT]);

		err = bond_option_ad_select_set(bond, ad_select);
		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[])
{
	int err;

	err = bond_changelink(bond_dev, tb, data);
	if (err < 0)
		return err;

	return register_netdevice(bond_dev);
}

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_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*/
		0;
}

static int bond_fill_info(struct sk_buff *skb,
			  const struct net_device *bond_dev)
{
	struct bonding *bond = netdev_priv(bond_dev);
	struct net_device *slave_dev = bond_option_active_slave_get(bond);
	struct nlattr *targets;
	unsigned int packets_per_slave;
	int i, targets_added;

	if (nla_put_u8(skb, IFLA_BOND_MODE, bond->params.mode))
		goto nla_put_failure;

	if (slave_dev &&
	    nla_put_u32(skb, IFLA_BOND_ACTIVE_SLAVE, slave_dev->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_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(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]) {
			nla_put_be32(skb, i, bond->params.arp_targets[i]);
			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 (bond->primary_slave &&
	    nla_put_u32(skb, IFLA_BOND_PRIMARY,
			bond->primary_slave->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_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 (bond->params.mode == BOND_MODE_8023AD) {
		struct ad_info info;

		if (!bond_3ad_get_active_agg_info(bond, &info)) {
			struct nlattr *nest;

			nest = nla_nest_start(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;
}

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 */
};

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");
Commit	Line	Data
0a2a78c4 JP	1	/*
	2	* drivers/net/bond/bond_netlink.c - Netlink interface for bonding
	3	* Copyright (c) 2013 Jiri Pirko <jiri@resnulli.us>
eecdaa6e	4	* Copyright (c) 2013 Scott Feldman <sfeldma@cumulusnetworks.com>
0a2a78c4 JP	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License as published by
	8	* the Free Software Foundation; either version 2 of the License, or
	9	* (at your option) any later version.
	10	*/
	11
	12	#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
	13
	14	#include <linux/module.h>
	15	#include <linux/errno.h>
	16	#include <linux/netdevice.h>
	17	#include <linux/etherdevice.h>
	18	#include <linux/if_link.h>
	19	#include <linux/if_ether.h>
	20	#include <net/netlink.h>
	21	#include <net/rtnetlink.h>
	22	#include "bonding.h"
	23
1d3ee88a	24	int bond_get_slave(struct net_device slave_dev, struct sk_buff skb)
	25	{
	26	struct slave *slave = bond_slave_get_rtnl(slave_dev);
	27	const struct aggregator *agg;
	28
	29	if (nla_put_u8(skb, IFLA_SLAVE_STATE, bond_slave_state(slave)))
	30	goto nla_put_failure;
	31
	32	if (nla_put_u8(skb, IFLA_SLAVE_MII_STATUS, slave->link))
	33	goto nla_put_failure;
	34
	35	if (nla_put_u32(skb, IFLA_SLAVE_LINK_FAILURE_COUNT,
	36	slave->link_failure_count))
	37	goto nla_put_failure;
	38
	39	if (nla_put(skb, IFLA_SLAVE_PERM_HWADDR,
	40	slave_dev->addr_len, slave->perm_hwaddr))
	41	goto nla_put_failure;
	42
	43	if (nla_put_u16(skb, IFLA_SLAVE_QUEUE_ID, slave->queue_id))
	44	goto nla_put_failure;
	45
	46	if (slave->bond->params.mode == BOND_MODE_8023AD) {
	47	agg = SLAVE_AD_INFO(slave).port.aggregator;
	48	if (agg)
	49	if (nla_put_u16(skb, IFLA_SLAVE_AD_AGGREGATOR_ID,
	50	agg->aggregator_identifier))
	51	goto nla_put_failure;
	52	}
	53
	54	return 0;
	55
	56	nla_put_failure:
	57	return -EMSGSIZE;
	58	}
	59
90af2311 JP	60	static const struct nla_policy bond_policy[IFLA_BOND_MAX + 1] = {
90af2311 JP	61	[IFLA_BOND_MODE] = { .type = NLA_U8 },
ec76aa49	62	[IFLA_BOND_ACTIVE_SLAVE] = { .type = NLA_U32 },
eecdaa6e	63	[IFLA_BOND_MIIMON] = { .type = NLA_U32 },
25852e29	64	[IFLA_BOND_UPDELAY] = { .type = NLA_U32 },
c7461f9b	65	[IFLA_BOND_DOWNDELAY] = { .type = NLA_U32 },
9f53e14e	66	[IFLA_BOND_USE_CARRIER] = { .type = NLA_U8 },
06151dbc	67	[IFLA_BOND_ARP_INTERVAL] = { .type = NLA_U32 },
7f28fa10	68	[IFLA_BOND_ARP_IP_TARGET] = { .type = NLA_NESTED },
29c49482	69	[IFLA_BOND_ARP_VALIDATE] = { .type = NLA_U32 },
d5c84254	70	[IFLA_BOND_ARP_ALL_TARGETS] = { .type = NLA_U32 },
0a98a0d1	71	[IFLA_BOND_PRIMARY] = { .type = NLA_U32 },
8a41ae44	72	[IFLA_BOND_PRIMARY_RESELECT] = { .type = NLA_U8 },
89901972	73	[IFLA_BOND_FAIL_OVER_MAC] = { .type = NLA_U8 },
f70161c6	74	[IFLA_BOND_XMIT_HASH_POLICY] = { .type = NLA_U8 },
d8838de7	75	[IFLA_BOND_RESEND_IGMP] = { .type = NLA_U32 },
2c9839c1	76	[IFLA_BOND_NUM_PEER_NOTIF] = { .type = NLA_U8 },
1cc0b1e3	77	[IFLA_BOND_ALL_SLAVES_ACTIVE] = { .type = NLA_U8 },
7d101008	78	[IFLA_BOND_MIN_LINKS] = { .type = NLA_U32 },
8d836d09	79	[IFLA_BOND_LP_INTERVAL] = { .type = NLA_U32 },
c13ab3ff	80	[IFLA_BOND_PACKETS_PER_SLAVE] = { .type = NLA_U32 },
998e40bb	81	[IFLA_BOND_AD_LACP_RATE] = { .type = NLA_U8 },
ec029fac	82	[IFLA_BOND_AD_SELECT] = { .type = NLA_U8 },
4ee7ac75	83	[IFLA_BOND_AD_INFO] = { .type = NLA_NESTED },
90af2311 JP	84	};
90af2311 JP	85
0a2a78c4 JP	86	static int bond_validate(struct nlattr tb[], struct nlattr data[])
	87	{
	88	if (tb[IFLA_ADDRESS]) {
	89	if (nla_len(tb[IFLA_ADDRESS]) != ETH_ALEN)
	90	return -EINVAL;
	91	if (!is_valid_ether_addr(nla_data(tb[IFLA_ADDRESS])))
	92	return -EADDRNOTAVAIL;
	93	}
	94	return 0;
	95	}
	96
90af2311 JP	97	static int bond_changelink(struct net_device *bond_dev,
	98	struct nlattr tb[], struct nlattr data[])
	99	{
	100	struct bonding *bond = netdev_priv(bond_dev);
2b3798d5	101	struct bond_opt_value newval;
06151dbc	102	int miimon = 0;
90af2311 JP	103	int err;
90af2311 JP	104
eecdaa6e	105	if (!data)
	106	return 0;
	107
	108	if (data[IFLA_BOND_MODE]) {
90af2311 JP	109	int mode = nla_get_u8(data[IFLA_BOND_MODE]);
90af2311 JP	110
2b3798d5 NA	111	bond_opt_initval(&newval, mode);
2b3798d5 NA	112	err = __bond_opt_set(bond, BOND_OPT_MODE, &newval);
90af2311 JP	113	if (err)
	114	return err;
	115	}
eecdaa6e	116	if (data[IFLA_BOND_ACTIVE_SLAVE]) {
ec76aa49 JP	117	int ifindex = nla_get_u32(data[IFLA_BOND_ACTIVE_SLAVE]);
	118	struct net_device *slave_dev;
	119
	120	if (ifindex == 0) {
	121	slave_dev = NULL;
	122	} else {
	123	slave_dev = __dev_get_by_index(dev_net(bond_dev),
	124	ifindex);
	125	if (!slave_dev)
	126	return -ENODEV;
	127	}
	128	err = bond_option_active_slave_set(bond, slave_dev);
	129	if (err)
	130	return err;
	131	}
eecdaa6e	132	if (data[IFLA_BOND_MIIMON]) {
06151dbc	133	miimon = nla_get_u32(data[IFLA_BOND_MIIMON]);
eecdaa6e	134
	135	err = bond_option_miimon_set(bond, miimon);
	136	if (err)
	137	return err;
	138	}
25852e29	139	if (data[IFLA_BOND_UPDELAY]) {
	140	int updelay = nla_get_u32(data[IFLA_BOND_UPDELAY]);
	141
	142	err = bond_option_updelay_set(bond, updelay);
	143	if (err)
	144	return err;
	145	}
c7461f9b	146	if (data[IFLA_BOND_DOWNDELAY]) {
	147	int downdelay = nla_get_u32(data[IFLA_BOND_DOWNDELAY]);
	148
	149	err = bond_option_downdelay_set(bond, downdelay);
	150	if (err)
	151	return err;
	152	}
9f53e14e	153	if (data[IFLA_BOND_USE_CARRIER]) {
	154	int use_carrier = nla_get_u8(data[IFLA_BOND_USE_CARRIER]);
	155
	156	err = bond_option_use_carrier_set(bond, use_carrier);
	157	if (err)
	158	return err;
	159	}
06151dbc	160	if (data[IFLA_BOND_ARP_INTERVAL]) {
	161	int arp_interval = nla_get_u32(data[IFLA_BOND_ARP_INTERVAL]);
	162
	163	if (arp_interval && miimon) {
	164	pr_err("%s: ARP monitoring cannot be used with MII monitoring.\n",
	165	bond->dev->name);
	166	return -EINVAL;
	167	}
	168
7bdb04ed NA	169	bond_opt_initval(&newval, arp_interval);
7bdb04ed NA	170	err = __bond_opt_set(bond, BOND_OPT_ARP_INTERVAL, &newval);
06151dbc	171	if (err)
	172	return err;
	173	}
7f28fa10	174	if (data[IFLA_BOND_ARP_IP_TARGET]) {
	175	__be32 targets[BOND_MAX_ARP_TARGETS] = { 0, };
	176	struct nlattr *attr;
	177	int i = 0, rem;
	178
	179	nla_for_each_nested(attr, data[IFLA_BOND_ARP_IP_TARGET], rem) {
e7ef941d	180	__be32 target = nla_get_be32(attr);
7f28fa10	181	targets[i++] = target;
	182	}
	183
	184	err = bond_option_arp_ip_targets_set(bond, targets, i);
	185	if (err)
	186	return err;
	187	}
29c49482	188	if (data[IFLA_BOND_ARP_VALIDATE]) {
	189	int arp_validate = nla_get_u32(data[IFLA_BOND_ARP_VALIDATE]);
	190
	191	if (arp_validate && miimon) {
	192	pr_err("%s: ARP validating cannot be used with MII monitoring.\n",
	193	bond->dev->name);
	194	return -EINVAL;
	195	}
	196
16228881 NA	197	bond_opt_initval(&newval, arp_validate);
16228881 NA	198	err = __bond_opt_set(bond, BOND_OPT_ARP_VALIDATE, &newval);
29c49482	199	if (err)
	200	return err;
	201	}
d5c84254	202	if (data[IFLA_BOND_ARP_ALL_TARGETS]) {
	203	int arp_all_targets =
	204	nla_get_u32(data[IFLA_BOND_ARP_ALL_TARGETS]);
	205
edf36b24 NA	206	bond_opt_initval(&newval, arp_all_targets);
edf36b24 NA	207	err = __bond_opt_set(bond, BOND_OPT_ARP_ALL_TARGETS, &newval);
d5c84254	208	if (err)
	209	return err;
	210	}
0a98a0d1	211	if (data[IFLA_BOND_PRIMARY]) {
	212	int ifindex = nla_get_u32(data[IFLA_BOND_PRIMARY]);
	213	struct net_device *dev;
	214	char *primary = "";
	215
	216	dev = __dev_get_by_index(dev_net(bond_dev), ifindex);
	217	if (dev)
	218	primary = dev->name;
	219
	220	err = bond_option_primary_set(bond, primary);
	221	if (err)
	222	return err;
	223	}
8a41ae44	224	if (data[IFLA_BOND_PRIMARY_RESELECT]) {
	225	int primary_reselect =
	226	nla_get_u8(data[IFLA_BOND_PRIMARY_RESELECT]);
	227
	228	err = bond_option_primary_reselect_set(bond, primary_reselect);
	229	if (err)
	230	return err;
	231	}
89901972	232	if (data[IFLA_BOND_FAIL_OVER_MAC]) {
	233	int fail_over_mac =
	234	nla_get_u8(data[IFLA_BOND_FAIL_OVER_MAC]);
	235
1df6b6aa NA	236	bond_opt_initval(&newval, fail_over_mac);
1df6b6aa NA	237	err = __bond_opt_set(bond, BOND_OPT_FAIL_OVER_MAC, &newval);
89901972	238	if (err)
	239	return err;
	240	}
f70161c6	241	if (data[IFLA_BOND_XMIT_HASH_POLICY]) {
	242	int xmit_hash_policy =
	243	nla_get_u8(data[IFLA_BOND_XMIT_HASH_POLICY]);
	244
a4b32ce7 NA	245	bond_opt_initval(&newval, xmit_hash_policy);
a4b32ce7 NA	246	err = __bond_opt_set(bond, BOND_OPT_XMIT_HASH, &newval);
f70161c6	247	if (err)
	248	return err;
	249	}
d8838de7	250	if (data[IFLA_BOND_RESEND_IGMP]) {
	251	int resend_igmp =
	252	nla_get_u32(data[IFLA_BOND_RESEND_IGMP]);
	253
	254	err = bond_option_resend_igmp_set(bond, resend_igmp);
	255	if (err)
	256	return err;
	257	}
2c9839c1	258	if (data[IFLA_BOND_NUM_PEER_NOTIF]) {
	259	int num_peer_notif =
	260	nla_get_u8(data[IFLA_BOND_NUM_PEER_NOTIF]);
	261
	262	err = bond_option_num_peer_notif_set(bond, num_peer_notif);
	263	if (err)
	264	return err;
	265	}
1cc0b1e3	266	if (data[IFLA_BOND_ALL_SLAVES_ACTIVE]) {
	267	int all_slaves_active =
	268	nla_get_u8(data[IFLA_BOND_ALL_SLAVES_ACTIVE]);
	269
	270	err = bond_option_all_slaves_active_set(bond,
	271	all_slaves_active);
	272	if (err)
	273	return err;
	274	}
7d101008	275	if (data[IFLA_BOND_MIN_LINKS]) {
	276	int min_links =
	277	nla_get_u32(data[IFLA_BOND_MIN_LINKS]);
	278
	279	err = bond_option_min_links_set(bond, min_links);
	280	if (err)
	281	return err;
	282	}
8d836d09	283	if (data[IFLA_BOND_LP_INTERVAL]) {
	284	int lp_interval =
	285	nla_get_u32(data[IFLA_BOND_LP_INTERVAL]);
	286
	287	err = bond_option_lp_interval_set(bond, lp_interval);
	288	if (err)
	289	return err;
	290	}
c13ab3ff	291	if (data[IFLA_BOND_PACKETS_PER_SLAVE]) {
	292	int packets_per_slave =
	293	nla_get_u32(data[IFLA_BOND_PACKETS_PER_SLAVE]);
	294
aa59d851 NA	295	bond_opt_initval(&newval, packets_per_slave);
aa59d851 NA	296	err = __bond_opt_set(bond, BOND_OPT_PACKETS_PER_SLAVE, &newval);
c13ab3ff	297	if (err)
	298	return err;
	299	}
998e40bb	300	if (data[IFLA_BOND_AD_LACP_RATE]) {
	301	int lacp_rate =
	302	nla_get_u8(data[IFLA_BOND_AD_LACP_RATE]);
	303
	304	err = bond_option_lacp_rate_set(bond, lacp_rate);
	305	if (err)
	306	return err;
	307	}
ec029fac	308	if (data[IFLA_BOND_AD_SELECT]) {
	309	int ad_select =
	310	nla_get_u8(data[IFLA_BOND_AD_SELECT]);
	311
	312	err = bond_option_ad_select_set(bond, ad_select);
	313	if (err)
	314	return err;
	315	}
90af2311 JP	316	return 0;
	317	}
	318
	319	static int bond_newlink(struct net src_net, struct net_device bond_dev,
	320	struct nlattr tb[], struct nlattr data[])
	321	{
	322	int err;
	323
	324	err = bond_changelink(bond_dev, tb, data);
	325	if (err < 0)
	326	return err;
	327
	328	return register_netdevice(bond_dev);
	329	}
	330
	331	static size_t bond_get_size(const struct net_device *bond_dev)
	332	{
e139862e	333	return nla_total_size(sizeof(u8)) + /* IFLA_BOND_MODE */
eecdaa6e	334	nla_total_size(sizeof(u32)) + /* IFLA_BOND_ACTIVE_SLAVE */
eecdaa6e	335	nla_total_size(sizeof(u32)) + /* IFLA_BOND_MIIMON */
25852e29	336	nla_total_size(sizeof(u32)) + /* IFLA_BOND_UPDELAY */
c7461f9b	337	nla_total_size(sizeof(u32)) + /* IFLA_BOND_DOWNDELAY */
9f53e14e	338	nla_total_size(sizeof(u8)) + /* IFLA_BOND_USE_CARRIER */
06151dbc	339	nla_total_size(sizeof(u32)) + /* IFLA_BOND_ARP_INTERVAL */
7f28fa10	340	/* IFLA_BOND_ARP_IP_TARGET */
288db0aa	341	nla_total_size(sizeof(struct nlattr)) +
7f28fa10	342	nla_total_size(sizeof(u32)) * BOND_MAX_ARP_TARGETS +
29c49482	343	nla_total_size(sizeof(u32)) + /* IFLA_BOND_ARP_VALIDATE */
d5c84254	344	nla_total_size(sizeof(u32)) + /* IFLA_BOND_ARP_ALL_TARGETS */
0a98a0d1	345	nla_total_size(sizeof(u32)) + /* IFLA_BOND_PRIMARY */
8a41ae44	346	nla_total_size(sizeof(u8)) + /* IFLA_BOND_PRIMARY_RESELECT */
89901972	347	nla_total_size(sizeof(u8)) + /* IFLA_BOND_FAIL_OVER_MAC */
f70161c6	348	nla_total_size(sizeof(u8)) + /* IFLA_BOND_XMIT_HASH_POLICY */
d8838de7	349	nla_total_size(sizeof(u32)) + /* IFLA_BOND_RESEND_IGMP */
2c9839c1	350	nla_total_size(sizeof(u8)) + /* IFLA_BOND_NUM_PEER_NOTIF */
1cc0b1e3	351	nla_total_size(sizeof(u8)) + /* IFLA_BOND_ALL_SLAVES_ACTIVE */
7d101008	352	nla_total_size(sizeof(u32)) + /* IFLA_BOND_MIN_LINKS */
8d836d09	353	nla_total_size(sizeof(u32)) + /* IFLA_BOND_LP_INTERVAL */
c13ab3ff	354	nla_total_size(sizeof(u32)) + /* IFLA_BOND_PACKETS_PER_SLAVE */
998e40bb	355	nla_total_size(sizeof(u8)) + /* IFLA_BOND_AD_LACP_RATE */
ec029fac	356	nla_total_size(sizeof(u8)) + /* IFLA_BOND_AD_SELECT */
4ee7ac75	357	nla_total_size(sizeof(struct nlattr)) + /* IFLA_BOND_AD_INFO */
	358	nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_INFO_AGGREGATOR */
	359	nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_INFO_NUM_PORTS */
	360	nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_INFO_ACTOR_KEY */
	361	nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_INFO_PARTNER_KEY*/
	362	nla_total_size(ETH_ALEN) + /* IFLA_BOND_AD_INFO_PARTNER_MAC*/
eecdaa6e	363	0;
90af2311 JP	364	}
	365
	366	static int bond_fill_info(struct sk_buff *skb,
	367	const struct net_device *bond_dev)
	368	{
	369	struct bonding *bond = netdev_priv(bond_dev);
ec76aa49	370	struct net_device *slave_dev = bond_option_active_slave_get(bond);
7f28fa10	371	struct nlattr *targets;
c13ab3ff	372	unsigned int packets_per_slave;
7f28fa10	373	int i, targets_added;
90af2311	374
eecdaa6e	375	if (nla_put_u8(skb, IFLA_BOND_MODE, bond->params.mode))
90af2311	376	goto nla_put_failure;
eecdaa6e	377
	378	if (slave_dev &&
	379	nla_put_u32(skb, IFLA_BOND_ACTIVE_SLAVE, slave_dev->ifindex))
	380	goto nla_put_failure;
	381
	382	if (nla_put_u32(skb, IFLA_BOND_MIIMON, bond->params.miimon))
	383	goto nla_put_failure;
	384
25852e29	385	if (nla_put_u32(skb, IFLA_BOND_UPDELAY,
	386	bond->params.updelay * bond->params.miimon))
	387	goto nla_put_failure;
	388
c7461f9b	389	if (nla_put_u32(skb, IFLA_BOND_DOWNDELAY,
	390	bond->params.downdelay * bond->params.miimon))
	391	goto nla_put_failure;
	392
9f53e14e	393	if (nla_put_u8(skb, IFLA_BOND_USE_CARRIER, bond->params.use_carrier))
	394	goto nla_put_failure;
	395
06151dbc	396	if (nla_put_u32(skb, IFLA_BOND_ARP_INTERVAL, bond->params.arp_interval))
	397	goto nla_put_failure;
	398
7f28fa10	399	targets = nla_nest_start(skb, IFLA_BOND_ARP_IP_TARGET);
	400	if (!targets)
	401	goto nla_put_failure;
	402
	403	targets_added = 0;
	404	for (i = 0; i < BOND_MAX_ARP_TARGETS; i++) {
	405	if (bond->params.arp_targets[i]) {
e7ef941d	406	nla_put_be32(skb, i, bond->params.arp_targets[i]);
7f28fa10	407	targets_added = 1;
	408	}
	409	}
	410
	411	if (targets_added)
	412	nla_nest_end(skb, targets);
	413	else
	414	nla_nest_cancel(skb, targets);
	415
29c49482	416	if (nla_put_u32(skb, IFLA_BOND_ARP_VALIDATE, bond->params.arp_validate))
	417	goto nla_put_failure;
	418
d5c84254	419	if (nla_put_u32(skb, IFLA_BOND_ARP_ALL_TARGETS,
	420	bond->params.arp_all_targets))
	421	goto nla_put_failure;
	422
0a98a0d1	423	if (bond->primary_slave &&
	424	nla_put_u32(skb, IFLA_BOND_PRIMARY,
	425	bond->primary_slave->dev->ifindex))
	426	goto nla_put_failure;
	427
8a41ae44	428	if (nla_put_u8(skb, IFLA_BOND_PRIMARY_RESELECT,
	429	bond->params.primary_reselect))
	430	goto nla_put_failure;
	431
89901972	432	if (nla_put_u8(skb, IFLA_BOND_FAIL_OVER_MAC,
	433	bond->params.fail_over_mac))
	434	goto nla_put_failure;
	435
f70161c6	436	if (nla_put_u8(skb, IFLA_BOND_XMIT_HASH_POLICY,
	437	bond->params.xmit_policy))
	438	goto nla_put_failure;
	439
d8838de7	440	if (nla_put_u32(skb, IFLA_BOND_RESEND_IGMP,
	441	bond->params.resend_igmp))
	442	goto nla_put_failure;
	443
2c9839c1	444	if (nla_put_u8(skb, IFLA_BOND_NUM_PEER_NOTIF,
	445	bond->params.num_peer_notif))
	446	goto nla_put_failure;
	447
1cc0b1e3	448	if (nla_put_u8(skb, IFLA_BOND_ALL_SLAVES_ACTIVE,
	449	bond->params.all_slaves_active))
	450	goto nla_put_failure;
	451
7d101008	452	if (nla_put_u32(skb, IFLA_BOND_MIN_LINKS,
	453	bond->params.min_links))
	454	goto nla_put_failure;
	455
8d836d09	456	if (nla_put_u32(skb, IFLA_BOND_LP_INTERVAL,
	457	bond->params.lp_interval))
	458	goto nla_put_failure;
	459
c13ab3ff	460	packets_per_slave = bond->params.packets_per_slave;
c13ab3ff	461	if (nla_put_u32(skb, IFLA_BOND_PACKETS_PER_SLAVE,
	462	packets_per_slave))
	463	goto nla_put_failure;
	464
998e40bb	465	if (nla_put_u8(skb, IFLA_BOND_AD_LACP_RATE,
	466	bond->params.lacp_fast))
	467	goto nla_put_failure;
	468
ec029fac	469	if (nla_put_u8(skb, IFLA_BOND_AD_SELECT,
	470	bond->params.ad_select))
	471	goto nla_put_failure;
	472
4ee7ac75	473	if (bond->params.mode == BOND_MODE_8023AD) {
	474	struct ad_info info;
	475
	476	if (!bond_3ad_get_active_agg_info(bond, &info)) {
	477	struct nlattr *nest;
	478
	479	nest = nla_nest_start(skb, IFLA_BOND_AD_INFO);
	480	if (!nest)
	481	goto nla_put_failure;
	482
	483	if (nla_put_u16(skb, IFLA_BOND_AD_INFO_AGGREGATOR,
	484	info.aggregator_id))
	485	goto nla_put_failure;
	486	if (nla_put_u16(skb, IFLA_BOND_AD_INFO_NUM_PORTS,
	487	info.ports))
	488	goto nla_put_failure;
	489	if (nla_put_u16(skb, IFLA_BOND_AD_INFO_ACTOR_KEY,
	490	info.actor_key))
	491	goto nla_put_failure;
	492	if (nla_put_u16(skb, IFLA_BOND_AD_INFO_PARTNER_KEY,
	493	info.partner_key))
	494	goto nla_put_failure;
	495	if (nla_put(skb, IFLA_BOND_AD_INFO_PARTNER_MAC,
	496	sizeof(info.partner_system),
	497	&info.partner_system))
	498	goto nla_put_failure;
	499
	500	nla_nest_end(skb, nest);
	501	}
	502	}
	503
90af2311 JP	504	return 0;
	505
	506	nla_put_failure:
	507	return -EMSGSIZE;
	508	}
	509
0a2a78c4 JP	510	struct rtnl_link_ops bond_link_ops __read_mostly = {
	511	.kind = "bond",
	512	.priv_size = sizeof(struct bonding),
	513	.setup = bond_setup,
90af2311 JP	514	.maxtype = IFLA_BOND_MAX,
90af2311 JP	515	.policy = bond_policy,
0a2a78c4	516	.validate = bond_validate,
90af2311 JP	517	.newlink = bond_newlink,
	518	.changelink = bond_changelink,
	519	.get_size = bond_get_size,
	520	.fill_info = bond_fill_info,
0a2a78c4 JP	521	.get_num_tx_queues = bond_get_num_tx_queues,
	522	.get_num_rx_queues = bond_get_num_tx_queues, /* Use the same number
	523	as for TX queues */
	524	};
	525
	526	int __init bond_netlink_init(void)
	527	{
	528	return rtnl_link_register(&bond_link_ops);
	529	}
	530
a729e83a	531	void bond_netlink_fini(void)
0a2a78c4 JP	532	{
	533	rtnl_link_unregister(&bond_link_ops);
	534	}
	535
	536	MODULE_ALIAS_RTNL_LINK("bond");