[deliverable/linux.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]) {
		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 = nla_get_be32(attr);

			bond_opt_initval(&newval, target);
			err = __bond_opt_set(bond, BOND_OPT_ARP_TARGETS,
					     &newval);
			if (err)
				break;
			i++;
		}
		if (i == 0 && bond->params.arp_interval)
			pr_warn("%s: removing last arp target with arp_interval on\n",
				bond->dev->name);
		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]) {
7f28fa10	175	struct nlattr *attr;
	176	int i = 0, rem;
	177
4fb0ef58	178	bond_option_arp_ip_targets_clear(bond);
7f28fa10	179	nla_for_each_nested(attr, data[IFLA_BOND_ARP_IP_TARGET], rem) {
e7ef941d	180	__be32 target = nla_get_be32(attr);
7f28fa10	181
4fb0ef58 NA	182	bond_opt_initval(&newval, target);
	183	err = __bond_opt_set(bond, BOND_OPT_ARP_TARGETS,
	184	&newval);
	185	if (err)
	186	break;
	187	i++;
	188	}
	189	if (i == 0 && bond->params.arp_interval)
	190	pr_warn("%s: removing last arp target with arp_interval on\n",
	191	bond->dev->name);
7f28fa10	192	if (err)
	193	return err;
	194	}
29c49482	195	if (data[IFLA_BOND_ARP_VALIDATE]) {
	196	int arp_validate = nla_get_u32(data[IFLA_BOND_ARP_VALIDATE]);
	197
	198	if (arp_validate && miimon) {
	199	pr_err("%s: ARP validating cannot be used with MII monitoring.\n",
	200	bond->dev->name);
	201	return -EINVAL;
	202	}
	203
16228881 NA	204	bond_opt_initval(&newval, arp_validate);
16228881 NA	205	err = __bond_opt_set(bond, BOND_OPT_ARP_VALIDATE, &newval);
29c49482	206	if (err)
	207	return err;
	208	}
d5c84254	209	if (data[IFLA_BOND_ARP_ALL_TARGETS]) {
	210	int arp_all_targets =
	211	nla_get_u32(data[IFLA_BOND_ARP_ALL_TARGETS]);
	212
edf36b24 NA	213	bond_opt_initval(&newval, arp_all_targets);
edf36b24 NA	214	err = __bond_opt_set(bond, BOND_OPT_ARP_ALL_TARGETS, &newval);
d5c84254	215	if (err)
	216	return err;
	217	}
0a98a0d1	218	if (data[IFLA_BOND_PRIMARY]) {
	219	int ifindex = nla_get_u32(data[IFLA_BOND_PRIMARY]);
	220	struct net_device *dev;
	221	char *primary = "";
	222
	223	dev = __dev_get_by_index(dev_net(bond_dev), ifindex);
	224	if (dev)
	225	primary = dev->name;
	226
	227	err = bond_option_primary_set(bond, primary);
	228	if (err)
	229	return err;
	230	}
8a41ae44	231	if (data[IFLA_BOND_PRIMARY_RESELECT]) {
	232	int primary_reselect =
	233	nla_get_u8(data[IFLA_BOND_PRIMARY_RESELECT]);
	234
	235	err = bond_option_primary_reselect_set(bond, primary_reselect);
	236	if (err)
	237	return err;
	238	}
89901972	239	if (data[IFLA_BOND_FAIL_OVER_MAC]) {
	240	int fail_over_mac =
	241	nla_get_u8(data[IFLA_BOND_FAIL_OVER_MAC]);
	242
1df6b6aa NA	243	bond_opt_initval(&newval, fail_over_mac);
1df6b6aa NA	244	err = __bond_opt_set(bond, BOND_OPT_FAIL_OVER_MAC, &newval);
89901972	245	if (err)
	246	return err;
	247	}
f70161c6	248	if (data[IFLA_BOND_XMIT_HASH_POLICY]) {
	249	int xmit_hash_policy =
	250	nla_get_u8(data[IFLA_BOND_XMIT_HASH_POLICY]);
	251
a4b32ce7 NA	252	bond_opt_initval(&newval, xmit_hash_policy);
a4b32ce7 NA	253	err = __bond_opt_set(bond, BOND_OPT_XMIT_HASH, &newval);
f70161c6	254	if (err)
	255	return err;
	256	}
d8838de7	257	if (data[IFLA_BOND_RESEND_IGMP]) {
	258	int resend_igmp =
	259	nla_get_u32(data[IFLA_BOND_RESEND_IGMP]);
	260
	261	err = bond_option_resend_igmp_set(bond, resend_igmp);
	262	if (err)
	263	return err;
	264	}
2c9839c1	265	if (data[IFLA_BOND_NUM_PEER_NOTIF]) {
	266	int num_peer_notif =
	267	nla_get_u8(data[IFLA_BOND_NUM_PEER_NOTIF]);
	268
	269	err = bond_option_num_peer_notif_set(bond, num_peer_notif);
	270	if (err)
	271	return err;
	272	}
1cc0b1e3	273	if (data[IFLA_BOND_ALL_SLAVES_ACTIVE]) {
	274	int all_slaves_active =
	275	nla_get_u8(data[IFLA_BOND_ALL_SLAVES_ACTIVE]);
	276
	277	err = bond_option_all_slaves_active_set(bond,
	278	all_slaves_active);
	279	if (err)
	280	return err;
	281	}
7d101008	282	if (data[IFLA_BOND_MIN_LINKS]) {
	283	int min_links =
	284	nla_get_u32(data[IFLA_BOND_MIN_LINKS]);
	285
	286	err = bond_option_min_links_set(bond, min_links);
	287	if (err)
	288	return err;
	289	}
8d836d09	290	if (data[IFLA_BOND_LP_INTERVAL]) {
	291	int lp_interval =
	292	nla_get_u32(data[IFLA_BOND_LP_INTERVAL]);
	293
	294	err = bond_option_lp_interval_set(bond, lp_interval);
	295	if (err)
	296	return err;
	297	}
c13ab3ff	298	if (data[IFLA_BOND_PACKETS_PER_SLAVE]) {
	299	int packets_per_slave =
	300	nla_get_u32(data[IFLA_BOND_PACKETS_PER_SLAVE]);
	301
aa59d851 NA	302	bond_opt_initval(&newval, packets_per_slave);
aa59d851 NA	303	err = __bond_opt_set(bond, BOND_OPT_PACKETS_PER_SLAVE, &newval);
c13ab3ff	304	if (err)
	305	return err;
	306	}
998e40bb	307	if (data[IFLA_BOND_AD_LACP_RATE]) {
	308	int lacp_rate =
	309	nla_get_u8(data[IFLA_BOND_AD_LACP_RATE]);
	310
	311	err = bond_option_lacp_rate_set(bond, lacp_rate);
	312	if (err)
	313	return err;
	314	}
ec029fac	315	if (data[IFLA_BOND_AD_SELECT]) {
	316	int ad_select =
	317	nla_get_u8(data[IFLA_BOND_AD_SELECT]);
	318
	319	err = bond_option_ad_select_set(bond, ad_select);
	320	if (err)
	321	return err;
	322	}
90af2311 JP	323	return 0;
	324	}
	325
	326	static int bond_newlink(struct net src_net, struct net_device bond_dev,
	327	struct nlattr tb[], struct nlattr data[])
	328	{
	329	int err;
	330
	331	err = bond_changelink(bond_dev, tb, data);
	332	if (err < 0)
	333	return err;
	334
	335	return register_netdevice(bond_dev);
	336	}
	337
	338	static size_t bond_get_size(const struct net_device *bond_dev)
	339	{
e139862e	340	return nla_total_size(sizeof(u8)) + /* IFLA_BOND_MODE */
eecdaa6e	341	nla_total_size(sizeof(u32)) + /* IFLA_BOND_ACTIVE_SLAVE */
eecdaa6e	342	nla_total_size(sizeof(u32)) + /* IFLA_BOND_MIIMON */
25852e29	343	nla_total_size(sizeof(u32)) + /* IFLA_BOND_UPDELAY */
c7461f9b	344	nla_total_size(sizeof(u32)) + /* IFLA_BOND_DOWNDELAY */
9f53e14e	345	nla_total_size(sizeof(u8)) + /* IFLA_BOND_USE_CARRIER */
06151dbc	346	nla_total_size(sizeof(u32)) + /* IFLA_BOND_ARP_INTERVAL */
7f28fa10	347	/* IFLA_BOND_ARP_IP_TARGET */
288db0aa	348	nla_total_size(sizeof(struct nlattr)) +
7f28fa10	349	nla_total_size(sizeof(u32)) * BOND_MAX_ARP_TARGETS +
29c49482	350	nla_total_size(sizeof(u32)) + /* IFLA_BOND_ARP_VALIDATE */
d5c84254	351	nla_total_size(sizeof(u32)) + /* IFLA_BOND_ARP_ALL_TARGETS */
0a98a0d1	352	nla_total_size(sizeof(u32)) + /* IFLA_BOND_PRIMARY */
8a41ae44	353	nla_total_size(sizeof(u8)) + /* IFLA_BOND_PRIMARY_RESELECT */
89901972	354	nla_total_size(sizeof(u8)) + /* IFLA_BOND_FAIL_OVER_MAC */
f70161c6	355	nla_total_size(sizeof(u8)) + /* IFLA_BOND_XMIT_HASH_POLICY */
d8838de7	356	nla_total_size(sizeof(u32)) + /* IFLA_BOND_RESEND_IGMP */
2c9839c1	357	nla_total_size(sizeof(u8)) + /* IFLA_BOND_NUM_PEER_NOTIF */
1cc0b1e3	358	nla_total_size(sizeof(u8)) + /* IFLA_BOND_ALL_SLAVES_ACTIVE */
7d101008	359	nla_total_size(sizeof(u32)) + /* IFLA_BOND_MIN_LINKS */
8d836d09	360	nla_total_size(sizeof(u32)) + /* IFLA_BOND_LP_INTERVAL */
c13ab3ff	361	nla_total_size(sizeof(u32)) + /* IFLA_BOND_PACKETS_PER_SLAVE */
998e40bb	362	nla_total_size(sizeof(u8)) + /* IFLA_BOND_AD_LACP_RATE */
ec029fac	363	nla_total_size(sizeof(u8)) + /* IFLA_BOND_AD_SELECT */
4ee7ac75	364	nla_total_size(sizeof(struct nlattr)) + /* IFLA_BOND_AD_INFO */
	365	nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_INFO_AGGREGATOR */
	366	nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_INFO_NUM_PORTS */
	367	nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_INFO_ACTOR_KEY */
	368	nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_INFO_PARTNER_KEY*/
	369	nla_total_size(ETH_ALEN) + /* IFLA_BOND_AD_INFO_PARTNER_MAC*/
eecdaa6e	370	0;
90af2311 JP	371	}
	372
	373	static int bond_fill_info(struct sk_buff *skb,
	374	const struct net_device *bond_dev)
	375	{
	376	struct bonding *bond = netdev_priv(bond_dev);
ec76aa49	377	struct net_device *slave_dev = bond_option_active_slave_get(bond);
7f28fa10	378	struct nlattr *targets;
c13ab3ff	379	unsigned int packets_per_slave;
7f28fa10	380	int i, targets_added;
90af2311	381
eecdaa6e	382	if (nla_put_u8(skb, IFLA_BOND_MODE, bond->params.mode))
90af2311	383	goto nla_put_failure;
eecdaa6e	384
	385	if (slave_dev &&
	386	nla_put_u32(skb, IFLA_BOND_ACTIVE_SLAVE, slave_dev->ifindex))
	387	goto nla_put_failure;
	388
	389	if (nla_put_u32(skb, IFLA_BOND_MIIMON, bond->params.miimon))
	390	goto nla_put_failure;
	391
25852e29	392	if (nla_put_u32(skb, IFLA_BOND_UPDELAY,
	393	bond->params.updelay * bond->params.miimon))
	394	goto nla_put_failure;
	395
c7461f9b	396	if (nla_put_u32(skb, IFLA_BOND_DOWNDELAY,
	397	bond->params.downdelay * bond->params.miimon))
	398	goto nla_put_failure;
	399
9f53e14e	400	if (nla_put_u8(skb, IFLA_BOND_USE_CARRIER, bond->params.use_carrier))
	401	goto nla_put_failure;
	402
06151dbc	403	if (nla_put_u32(skb, IFLA_BOND_ARP_INTERVAL, bond->params.arp_interval))
	404	goto nla_put_failure;
	405
7f28fa10	406	targets = nla_nest_start(skb, IFLA_BOND_ARP_IP_TARGET);
	407	if (!targets)
	408	goto nla_put_failure;
	409
	410	targets_added = 0;
	411	for (i = 0; i < BOND_MAX_ARP_TARGETS; i++) {
	412	if (bond->params.arp_targets[i]) {
e7ef941d	413	nla_put_be32(skb, i, bond->params.arp_targets[i]);
7f28fa10	414	targets_added = 1;
	415	}
	416	}
	417
	418	if (targets_added)
	419	nla_nest_end(skb, targets);
	420	else
	421	nla_nest_cancel(skb, targets);
	422
29c49482	423	if (nla_put_u32(skb, IFLA_BOND_ARP_VALIDATE, bond->params.arp_validate))
	424	goto nla_put_failure;
	425
d5c84254	426	if (nla_put_u32(skb, IFLA_BOND_ARP_ALL_TARGETS,
	427	bond->params.arp_all_targets))
	428	goto nla_put_failure;
	429
0a98a0d1	430	if (bond->primary_slave &&
	431	nla_put_u32(skb, IFLA_BOND_PRIMARY,
	432	bond->primary_slave->dev->ifindex))
	433	goto nla_put_failure;
	434
8a41ae44	435	if (nla_put_u8(skb, IFLA_BOND_PRIMARY_RESELECT,
	436	bond->params.primary_reselect))
	437	goto nla_put_failure;
	438
89901972	439	if (nla_put_u8(skb, IFLA_BOND_FAIL_OVER_MAC,
	440	bond->params.fail_over_mac))
	441	goto nla_put_failure;
	442
f70161c6	443	if (nla_put_u8(skb, IFLA_BOND_XMIT_HASH_POLICY,
	444	bond->params.xmit_policy))
	445	goto nla_put_failure;
	446
d8838de7	447	if (nla_put_u32(skb, IFLA_BOND_RESEND_IGMP,
	448	bond->params.resend_igmp))
	449	goto nla_put_failure;
	450
2c9839c1	451	if (nla_put_u8(skb, IFLA_BOND_NUM_PEER_NOTIF,
	452	bond->params.num_peer_notif))
	453	goto nla_put_failure;
	454
1cc0b1e3	455	if (nla_put_u8(skb, IFLA_BOND_ALL_SLAVES_ACTIVE,
	456	bond->params.all_slaves_active))
	457	goto nla_put_failure;
	458
7d101008	459	if (nla_put_u32(skb, IFLA_BOND_MIN_LINKS,
	460	bond->params.min_links))
	461	goto nla_put_failure;
	462
8d836d09	463	if (nla_put_u32(skb, IFLA_BOND_LP_INTERVAL,
	464	bond->params.lp_interval))
	465	goto nla_put_failure;
	466
c13ab3ff	467	packets_per_slave = bond->params.packets_per_slave;
c13ab3ff	468	if (nla_put_u32(skb, IFLA_BOND_PACKETS_PER_SLAVE,
	469	packets_per_slave))
	470	goto nla_put_failure;
	471
998e40bb	472	if (nla_put_u8(skb, IFLA_BOND_AD_LACP_RATE,
	473	bond->params.lacp_fast))
	474	goto nla_put_failure;
	475
ec029fac	476	if (nla_put_u8(skb, IFLA_BOND_AD_SELECT,
	477	bond->params.ad_select))
	478	goto nla_put_failure;
	479
4ee7ac75	480	if (bond->params.mode == BOND_MODE_8023AD) {
	481	struct ad_info info;
	482
	483	if (!bond_3ad_get_active_agg_info(bond, &info)) {
	484	struct nlattr *nest;
	485
	486	nest = nla_nest_start(skb, IFLA_BOND_AD_INFO);
	487	if (!nest)
	488	goto nla_put_failure;
	489
	490	if (nla_put_u16(skb, IFLA_BOND_AD_INFO_AGGREGATOR,
	491	info.aggregator_id))
	492	goto nla_put_failure;
	493	if (nla_put_u16(skb, IFLA_BOND_AD_INFO_NUM_PORTS,
	494	info.ports))
	495	goto nla_put_failure;
	496	if (nla_put_u16(skb, IFLA_BOND_AD_INFO_ACTOR_KEY,
	497	info.actor_key))
	498	goto nla_put_failure;
	499	if (nla_put_u16(skb, IFLA_BOND_AD_INFO_PARTNER_KEY,
	500	info.partner_key))
	501	goto nla_put_failure;
	502	if (nla_put(skb, IFLA_BOND_AD_INFO_PARTNER_MAC,
	503	sizeof(info.partner_system),
	504	&info.partner_system))
	505	goto nla_put_failure;
	506
	507	nla_nest_end(skb, nest);
	508	}
	509	}
	510
90af2311 JP	511	return 0;
	512
	513	nla_put_failure:
	514	return -EMSGSIZE;
	515	}
	516
0a2a78c4 JP	517	struct rtnl_link_ops bond_link_ops __read_mostly = {
	518	.kind = "bond",
	519	.priv_size = sizeof(struct bonding),
	520	.setup = bond_setup,
90af2311 JP	521	.maxtype = IFLA_BOND_MAX,
90af2311 JP	522	.policy = bond_policy,
0a2a78c4	523	.validate = bond_validate,
90af2311 JP	524	.newlink = bond_newlink,
	525	.changelink = bond_changelink,
	526	.get_size = bond_get_size,
	527	.fill_info = bond_fill_info,
0a2a78c4 JP	528	.get_num_tx_queues = bond_get_num_tx_queues,
	529	.get_num_rx_queues = bond_get_num_tx_queues, /* Use the same number
	530	as for TX queues */
	531	};
	532
	533	int __init bond_netlink_init(void)
	534	{
	535	return rtnl_link_register(&bond_link_ops);
	536	}
	537
a729e83a	538	void bond_netlink_fini(void)
0a2a78c4 JP	539	{
	540	rtnl_link_unregister(&bond_link_ops);
	541	}
	542
	543	MODULE_ALIAS_RTNL_LINK("bond");