path: root/drivers/net/bonding/bond_options.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * drivers/net/bond/bond_options.c - bonding options
 * Copyright (c) 2013 Jiri Pirko <jiri@resnulli.us>
 * Copyright (c) 2013 Scott Feldman <sfeldma@cumulusnetworks.com>
 */

#include <linux/errno.h>
#include <linux/if.h>
#include <linux/netdevice.h>
#include <linux/spinlock.h>
#include <linux/rcupdate.h>
#include <linux/ctype.h>
#include <linux/inet.h>
#include <linux/sched/signal.h>

#include <net/bonding.h>

static int bond_option_active_slave_set(struct bonding *bond,
					const struct bond_opt_value *newval);
static int bond_option_miimon_set(struct bonding *bond,
				  const struct bond_opt_value *newval);
static int bond_option_updelay_set(struct bonding *bond,
				   const struct bond_opt_value *newval);
static int bond_option_downdelay_set(struct bonding *bond,
				     const struct bond_opt_value *newval);
static int bond_option_peer_notif_delay_set(struct bonding *bond,
					    const struct bond_opt_value *newval);
static int bond_option_use_carrier_set(struct bonding *bond,
				       const struct bond_opt_value *newval);
static int bond_option_arp_interval_set(struct bonding *bond,
					const struct bond_opt_value *newval);
static int bond_option_arp_ip_target_add(struct bonding *bond, __be32 target);
static int bond_option_arp_ip_target_rem(struct bonding *bond, __be32 target);
static int bond_option_arp_ip_targets_set(struct bonding *bond,
					  const struct bond_opt_value *newval);
static int bond_option_arp_validate_set(struct bonding *bond,
					const struct bond_opt_value *newval);
static int bond_option_arp_all_targets_set(struct bonding *bond,
					   const struct bond_opt_value *newval);
static int bond_option_primary_set(struct bonding *bond,
				   const struct bond_opt_value *newval);
static int bond_option_primary_reselect_set(struct bonding *bond,
					    const struct bond_opt_value *newval);
static int bond_option_fail_over_mac_set(struct bonding *bond,
					 const struct bond_opt_value *newval);
static int bond_option_xmit_hash_policy_set(struct bonding *bond,
					    const struct bond_opt_value *newval);
static int bond_option_resend_igmp_set(struct bonding *bond,
				       const struct bond_opt_value *newval);
static int bond_option_num_peer_notif_set(struct bonding *bond,
					  const struct bond_opt_value *newval);
static int bond_option_all_slaves_active_set(struct bonding *bond,
					     const struct bond_opt_value *newval);
static int bond_option_min_links_set(struct bonding *bond,
				     const struct bond_opt_value *newval);
static int bond_option_lp_interval_set(struct bonding *bond,
				       const struct bond_opt_value *newval);
static int bond_option_pps_set(struct bonding *bond,
			       const struct bond_opt_value *newval);
static int bond_option_lacp_rate_set(struct bonding *bond,
				     const struct bond_opt_value *newval);
static int bond_option_ad_select_set(struct bonding *bond,
				     const struct bond_opt_value *newval);
static int bond_option_queue_id_set(struct bonding *bond,
				    const struct bond_opt_value *newval);
static int bond_option_mode_set(struct bonding *bond,
				const struct bond_opt_value *newval);
static int bond_option_slaves_set(struct bonding *bond,
				  const struct bond_opt_value *newval);
static int bond_option_tlb_dynamic_lb_set(struct bonding *bond,
				  const struct bond_opt_value *newval);
static int bond_option_ad_actor_sys_prio_set(struct bonding *bond,
					     const struct bond_opt_value *newval);
static int bond_option_ad_actor_system_set(struct bonding *bond,
					   const struct bond_opt_value *newval);
static int bond_option_ad_user_port_key_set(struct bonding *bond,
					    const struct bond_opt_value *newval);


static const struct bond_opt_value bond_mode_tbl[] = {
	{ "balance-rr",    BOND_MODE_ROUNDROBIN,   BOND_VALFLAG_DEFAULT},
	{ "active-backup", BOND_MODE_ACTIVEBACKUP, 0},
	{ "balance-xor",   BOND_MODE_XOR,          0},
	{ "broadcast",     BOND_MODE_BROADCAST,    0},
	{ "802.3ad",       BOND_MODE_8023AD,       0},
	{ "balance-tlb",   BOND_MODE_TLB,          0},
	{ "balance-alb",   BOND_MODE_ALB,          0},
	{ NULL,            -1,                     0},
};

static const struct bond_opt_value bond_pps_tbl[] = {
	{ "default", 1,         BOND_VALFLAG_DEFAULT},
	{ "maxval",  USHRT_MAX, BOND_VALFLAG_MAX},
	{ NULL,      -1,        0},
};

static const struct bond_opt_value bond_xmit_hashtype_tbl[] = {
	{ "layer2",   BOND_XMIT_POLICY_LAYER2, BOND_VALFLAG_DEFAULT},
	{ "layer3+4", BOND_XMIT_POLICY_LAYER34, 0},
	{ "layer2+3", BOND_XMIT_POLICY_LAYER23, 0},
	{ "encap2+3", BOND_XMIT_POLICY_ENCAP23, 0},
	{ "encap3+4", BOND_XMIT_POLICY_ENCAP34, 0},
	{ NULL,       -1,                       0},
};

static const struct bond_opt_value bond_arp_validate_tbl[] = {
	{ "none",		BOND_ARP_VALIDATE_NONE,		BOND_VALFLAG_DEFAULT},
	{ "active",		BOND_ARP_VALIDATE_ACTIVE,	0},
	{ "backup",		BOND_ARP_VALIDATE_BACKUP,	0},
	{ "all",		BOND_ARP_VALIDATE_ALL,		0},
	{ "filter",		BOND_ARP_FILTER,		0},
	{ "filter_active",	BOND_ARP_FILTER_ACTIVE,		0},
	{ "filter_backup",	BOND_ARP_FILTER_BACKUP,		0},
	{ NULL,			-1,				0},
};

static const struct bond_opt_value bond_arp_all_targets_tbl[] = {
	{ "any", BOND_ARP_TARGETS_ANY, BOND_VALFLAG_DEFAULT},
	{ "all", BOND_ARP_TARGETS_ALL, 0},
	{ NULL,  -1,                   0},
};

static const struct bond_opt_value bond_fail_over_mac_tbl[] = {
	{ "none",   BOND_FOM_NONE,   BOND_VALFLAG_DEFAULT},
	{ "active", BOND_FOM_ACTIVE, 0},
	{ "follow", BOND_FOM_FOLLOW, 0},
	{ NULL,     -1,              0},
};

static const struct bond_opt_value bond_intmax_tbl[] = {
	{ "off",     0,       BOND_VALFLAG_DEFAULT},
	{ "maxval",  INT_MAX, BOND_VALFLAG_MAX},
	{ NULL,      -1,      0}
};

static const struct bond_opt_value bond_lacp_rate_tbl[] = {
	{ "slow", AD_LACP_SLOW, 0},
	{ "fast", AD_LACP_FAST, 0},
	{ NULL,   -1,           0},
};

static const struct bond_opt_value bond_ad_select_tbl[] = {
	{ "stable",    BOND_AD_STABLE,    BOND_VALFLAG_DEFAULT},
	{ "bandwidth", BOND_AD_BANDWIDTH, 0},
	{ "count",     BOND_AD_COUNT,     0},
	{ NULL,        -1,                0},
};

static const struct bond_opt_value bond_num_peer_notif_tbl[] = {
	{ "off",     0,   0},
	{ "maxval",  255, BOND_VALFLAG_MAX},
	{ "default", 1,   BOND_VALFLAG_DEFAULT},
	{ NULL,      -1,  0}
};

static const struct bond_opt_value bond_primary_reselect_tbl[] = {
	{ "always",  BOND_PRI_RESELECT_ALWAYS,  BOND_VALFLAG_DEFAULT},
	{ "better",  BOND_PRI_RESELECT_BETTER,  0},
	{ "failure", BOND_PRI_RESELECT_FAILURE, 0},
	{ NULL,      -1},
};

static const struct bond_opt_value bond_use_carrier_tbl[] = {
	{ "off", 0,  0},
	{ "on",  1,  BOND_VALFLAG_DEFAULT},
	{ NULL,  -1, 0}
};

static const struct bond_opt_value bond_all_slaves_active_tbl[] = {
	{ "off", 0,  BOND_VALFLAG_DEFAULT},
	{ "on",  1,  0},
	{ NULL,  -1, 0}
};

static const struct bond_opt_value bond_resend_igmp_tbl[] = {
	{ "off",     0,   0},
	{ "maxval",  255, BOND_VALFLAG_MAX},
	{ "default", 1,   BOND_VALFLAG_DEFAULT},
	{ NULL,      -1,  0}
};

static const struct bond_opt_value bond_lp_interval_tbl[] = {
	{ "minval",  1,       BOND_VALFLAG_MIN | BOND_VALFLAG_DEFAULT},
	{ "maxval",  INT_MAX, BOND_VALFLAG_MAX},
	{ NULL,      -1,      0},
};

static const struct bond_opt_value bond_tlb_dynamic_lb_tbl[] = {
	{ "off", 0,  0},
	{ "on",  1,  BOND_VALFLAG_DEFAULT},
	{ NULL,  -1, 0}
};

static const struct bond_opt_value bond_ad_actor_sys_prio