1693 lines
48 KiB
C
1693 lines
48 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* drivers/net/bond/bond_options.c - bonding options
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* Copyright (c) 2013 Jiri Pirko <jiri@resnulli.us>
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* Copyright (c) 2013 Scott Feldman <sfeldma@cumulusnetworks.com>
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*/
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#include <linux/errno.h>
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#include <linux/if.h>
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#include <linux/netdevice.h>
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#include <linux/spinlock.h>
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#include <linux/rcupdate.h>
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#include <linux/ctype.h>
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#include <linux/inet.h>
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#include <linux/sched/signal.h>
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#include <net/bonding.h>
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static int bond_option_active_slave_set(struct bonding *bond,
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const struct bond_opt_value *newval);
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static int bond_option_miimon_set(struct bonding *bond,
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const struct bond_opt_value *newval);
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static int bond_option_updelay_set(struct bonding *bond,
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const struct bond_opt_value *newval);
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static int bond_option_downdelay_set(struct bonding *bond,
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const struct bond_opt_value *newval);
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static int bond_option_peer_notif_delay_set(struct bonding *bond,
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const struct bond_opt_value *newval);
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static int bond_option_use_carrier_set(struct bonding *bond,
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const struct bond_opt_value *newval);
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static int bond_option_arp_interval_set(struct bonding *bond,
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const struct bond_opt_value *newval);
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static int bond_option_arp_ip_target_add(struct bonding *bond, __be32 target);
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static int bond_option_arp_ip_target_rem(struct bonding *bond, __be32 target);
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static int bond_option_arp_ip_targets_set(struct bonding *bond,
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const struct bond_opt_value *newval);
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static int bond_option_ns_ip6_targets_set(struct bonding *bond,
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const struct bond_opt_value *newval);
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static int bond_option_arp_validate_set(struct bonding *bond,
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const struct bond_opt_value *newval);
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static int bond_option_arp_all_targets_set(struct bonding *bond,
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const struct bond_opt_value *newval);
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static int bond_option_prio_set(struct bonding *bond,
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const struct bond_opt_value *newval);
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static int bond_option_primary_set(struct bonding *bond,
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const struct bond_opt_value *newval);
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static int bond_option_primary_reselect_set(struct bonding *bond,
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const struct bond_opt_value *newval);
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static int bond_option_fail_over_mac_set(struct bonding *bond,
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const struct bond_opt_value *newval);
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static int bond_option_xmit_hash_policy_set(struct bonding *bond,
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const struct bond_opt_value *newval);
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static int bond_option_resend_igmp_set(struct bonding *bond,
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const struct bond_opt_value *newval);
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static int bond_option_num_peer_notif_set(struct bonding *bond,
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const struct bond_opt_value *newval);
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static int bond_option_all_slaves_active_set(struct bonding *bond,
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const struct bond_opt_value *newval);
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static int bond_option_min_links_set(struct bonding *bond,
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const struct bond_opt_value *newval);
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static int bond_option_lp_interval_set(struct bonding *bond,
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const struct bond_opt_value *newval);
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static int bond_option_pps_set(struct bonding *bond,
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const struct bond_opt_value *newval);
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static int bond_option_lacp_active_set(struct bonding *bond,
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const struct bond_opt_value *newval);
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static int bond_option_lacp_rate_set(struct bonding *bond,
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const struct bond_opt_value *newval);
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static int bond_option_ad_select_set(struct bonding *bond,
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const struct bond_opt_value *newval);
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static int bond_option_queue_id_set(struct bonding *bond,
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const struct bond_opt_value *newval);
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static int bond_option_mode_set(struct bonding *bond,
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const struct bond_opt_value *newval);
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static int bond_option_slaves_set(struct bonding *bond,
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const struct bond_opt_value *newval);
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static int bond_option_tlb_dynamic_lb_set(struct bonding *bond,
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const struct bond_opt_value *newval);
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static int bond_option_ad_actor_sys_prio_set(struct bonding *bond,
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const struct bond_opt_value *newval);
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static int bond_option_ad_actor_system_set(struct bonding *bond,
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const struct bond_opt_value *newval);
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static int bond_option_ad_user_port_key_set(struct bonding *bond,
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const struct bond_opt_value *newval);
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static int bond_option_missed_max_set(struct bonding *bond,
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const struct bond_opt_value *newval);
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static const struct bond_opt_value bond_mode_tbl[] = {
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{ "balance-rr", BOND_MODE_ROUNDROBIN, BOND_VALFLAG_DEFAULT},
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{ "active-backup", BOND_MODE_ACTIVEBACKUP, 0},
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{ "balance-xor", BOND_MODE_XOR, 0},
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{ "broadcast", BOND_MODE_BROADCAST, 0},
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{ "802.3ad", BOND_MODE_8023AD, 0},
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{ "balance-tlb", BOND_MODE_TLB, 0},
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{ "balance-alb", BOND_MODE_ALB, 0},
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{ NULL, -1, 0},
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};
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static const struct bond_opt_value bond_pps_tbl[] = {
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{ "default", 1, BOND_VALFLAG_DEFAULT},
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{ "maxval", USHRT_MAX, BOND_VALFLAG_MAX},
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{ NULL, -1, 0},
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};
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static const struct bond_opt_value bond_xmit_hashtype_tbl[] = {
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{ "layer2", BOND_XMIT_POLICY_LAYER2, BOND_VALFLAG_DEFAULT},
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{ "layer3+4", BOND_XMIT_POLICY_LAYER34, 0},
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{ "layer2+3", BOND_XMIT_POLICY_LAYER23, 0},
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{ "encap2+3", BOND_XMIT_POLICY_ENCAP23, 0},
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{ "encap3+4", BOND_XMIT_POLICY_ENCAP34, 0},
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{ "vlan+srcmac", BOND_XMIT_POLICY_VLAN_SRCMAC, 0},
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{ NULL, -1, 0},
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};
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static const struct bond_opt_value bond_arp_validate_tbl[] = {
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{ "none", BOND_ARP_VALIDATE_NONE, BOND_VALFLAG_DEFAULT},
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{ "active", BOND_ARP_VALIDATE_ACTIVE, 0},
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{ "backup", BOND_ARP_VALIDATE_BACKUP, 0},
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{ "all", BOND_ARP_VALIDATE_ALL, 0},
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{ "filter", BOND_ARP_FILTER, 0},
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{ "filter_active", BOND_ARP_FILTER_ACTIVE, 0},
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{ "filter_backup", BOND_ARP_FILTER_BACKUP, 0},
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{ NULL, -1, 0},
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};
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static const struct bond_opt_value bond_arp_all_targets_tbl[] = {
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{ "any", BOND_ARP_TARGETS_ANY, BOND_VALFLAG_DEFAULT},
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{ "all", BOND_ARP_TARGETS_ALL, 0},
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{ NULL, -1, 0},
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};
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static const struct bond_opt_value bond_fail_over_mac_tbl[] = {
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{ "none", BOND_FOM_NONE, BOND_VALFLAG_DEFAULT},
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{ "active", BOND_FOM_ACTIVE, 0},
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{ "follow", BOND_FOM_FOLLOW, 0},
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{ NULL, -1, 0},
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};
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static const struct bond_opt_value bond_intmax_tbl[] = {
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{ "off", 0, BOND_VALFLAG_DEFAULT},
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{ "maxval", INT_MAX, BOND_VALFLAG_MAX},
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{ NULL, -1, 0}
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};
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static const struct bond_opt_value bond_lacp_active[] = {
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{ "off", 0, 0},
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{ "on", 1, BOND_VALFLAG_DEFAULT},
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{ NULL, -1, 0}
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};
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static const struct bond_opt_value bond_lacp_rate_tbl[] = {
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{ "slow", AD_LACP_SLOW, 0},
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{ "fast", AD_LACP_FAST, 0},
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{ NULL, -1, 0},
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};
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static const struct bond_opt_value bond_ad_select_tbl[] = {
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{ "stable", BOND_AD_STABLE, BOND_VALFLAG_DEFAULT},
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{ "bandwidth", BOND_AD_BANDWIDTH, 0},
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{ "count", BOND_AD_COUNT, 0},
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{ NULL, -1, 0},
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};
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static const struct bond_opt_value bond_num_peer_notif_tbl[] = {
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{ "off", 0, 0},
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{ "maxval", 255, BOND_VALFLAG_MAX},
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{ "default", 1, BOND_VALFLAG_DEFAULT},
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{ NULL, -1, 0}
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};
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static const struct bond_opt_value bond_peer_notif_delay_tbl[] = {
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{ "off", 0, 0},
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{ "maxval", 300000, BOND_VALFLAG_MAX},
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{ NULL, -1, 0}
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};
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static const struct bond_opt_value bond_primary_reselect_tbl[] = {
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{ "always", BOND_PRI_RESELECT_ALWAYS, BOND_VALFLAG_DEFAULT},
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{ "better", BOND_PRI_RESELECT_BETTER, 0},
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{ "failure", BOND_PRI_RESELECT_FAILURE, 0},
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{ NULL, -1},
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};
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static const struct bond_opt_value bond_use_carrier_tbl[] = {
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{ "off", 0, 0},
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{ "on", 1, BOND_VALFLAG_DEFAULT},
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{ NULL, -1, 0}
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};
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static const struct bond_opt_value bond_all_slaves_active_tbl[] = {
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{ "off", 0, BOND_VALFLAG_DEFAULT},
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{ "on", 1, 0},
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{ NULL, -1, 0}
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};
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static const struct bond_opt_value bond_resend_igmp_tbl[] = {
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{ "off", 0, 0},
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{ "maxval", 255, BOND_VALFLAG_MAX},
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{ "default", 1, BOND_VALFLAG_DEFAULT},
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{ NULL, -1, 0}
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};
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static const struct bond_opt_value bond_lp_interval_tbl[] = {
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{ "minval", 1, BOND_VALFLAG_MIN | BOND_VALFLAG_DEFAULT},
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{ "maxval", INT_MAX, BOND_VALFLAG_MAX},
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{ NULL, -1, 0},
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};
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static const struct bond_opt_value bond_tlb_dynamic_lb_tbl[] = {
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{ "off", 0, 0},
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{ "on", 1, BOND_VALFLAG_DEFAULT},
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{ NULL, -1, 0}
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};
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static const struct bond_opt_value bond_ad_actor_sys_prio_tbl[] = {
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{ "minval", 1, BOND_VALFLAG_MIN},
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{ "maxval", 65535, BOND_VALFLAG_MAX | BOND_VALFLAG_DEFAULT},
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{ NULL, -1, 0},
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};
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static const struct bond_opt_value bond_ad_user_port_key_tbl[] = {
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{ "minval", 0, BOND_VALFLAG_MIN | BOND_VALFLAG_DEFAULT},
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{ "maxval", 1023, BOND_VALFLAG_MAX},
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{ NULL, -1, 0},
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};
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static const struct bond_opt_value bond_missed_max_tbl[] = {
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{ "minval", 1, BOND_VALFLAG_MIN},
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{ "maxval", 255, BOND_VALFLAG_MAX},
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{ "default", 2, BOND_VALFLAG_DEFAULT},
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{ NULL, -1, 0},
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};
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static const struct bond_option bond_opts[BOND_OPT_LAST] = {
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[BOND_OPT_MODE] = {
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.id = BOND_OPT_MODE,
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.name = "mode",
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.desc = "bond device mode",
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.flags = BOND_OPTFLAG_NOSLAVES | BOND_OPTFLAG_IFDOWN,
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.values = bond_mode_tbl,
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.set = bond_option_mode_set
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},
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[BOND_OPT_PACKETS_PER_SLAVE] = {
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.id = BOND_OPT_PACKETS_PER_SLAVE,
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.name = "packets_per_slave",
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.desc = "Packets to send per slave in RR mode",
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.unsuppmodes = BOND_MODE_ALL_EX(BIT(BOND_MODE_ROUNDROBIN)),
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.values = bond_pps_tbl,
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.set = bond_option_pps_set
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},
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[BOND_OPT_XMIT_HASH] = {
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.id = BOND_OPT_XMIT_HASH,
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.name = "xmit_hash_policy",
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.desc = "balance-xor, 802.3ad, and tlb hashing method",
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.values = bond_xmit_hashtype_tbl,
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.set = bond_option_xmit_hash_policy_set
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},
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[BOND_OPT_ARP_VALIDATE] = {
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.id = BOND_OPT_ARP_VALIDATE,
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.name = "arp_validate",
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.desc = "validate src/dst of ARP probes",
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.unsuppmodes = BIT(BOND_MODE_8023AD) | BIT(BOND_MODE_TLB) |
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BIT(BOND_MODE_ALB),
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.values = bond_arp_validate_tbl,
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.set = bond_option_arp_validate_set
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},
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[BOND_OPT_ARP_ALL_TARGETS] = {
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.id = BOND_OPT_ARP_ALL_TARGETS,
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.name = "arp_all_targets",
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.desc = "fail on any/all arp targets timeout",
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.values = bond_arp_all_targets_tbl,
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.set = bond_option_arp_all_targets_set
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},
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[BOND_OPT_FAIL_OVER_MAC] = {
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.id = BOND_OPT_FAIL_OVER_MAC,
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.name = "fail_over_mac",
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.desc = "For active-backup, do not set all slaves to the same MAC",
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.flags = BOND_OPTFLAG_NOSLAVES,
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.values = bond_fail_over_mac_tbl,
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.set = bond_option_fail_over_mac_set
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},
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[BOND_OPT_ARP_INTERVAL] = {
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.id = BOND_OPT_ARP_INTERVAL,
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.name = "arp_interval",
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.desc = "arp interval in milliseconds",
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.unsuppmodes = BIT(BOND_MODE_8023AD) | BIT(BOND_MODE_TLB) |
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BIT(BOND_MODE_ALB),
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.values = bond_intmax_tbl,
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.set = bond_option_arp_interval_set
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},
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[BOND_OPT_MISSED_MAX] = {
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.id = BOND_OPT_MISSED_MAX,
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.name = "arp_missed_max",
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.desc = "Maximum number of missed ARP interval",
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.unsuppmodes = BIT(BOND_MODE_8023AD) | BIT(BOND_MODE_TLB) |
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BIT(BOND_MODE_ALB),
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.values = bond_missed_max_tbl,
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.set = bond_option_missed_max_set
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},
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[BOND_OPT_ARP_TARGETS] = {
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.id = BOND_OPT_ARP_TARGETS,
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.name = "arp_ip_target",
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.desc = "arp targets in n.n.n.n form",
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.flags = BOND_OPTFLAG_RAWVAL,
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.set = bond_option_arp_ip_targets_set
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},
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[BOND_OPT_NS_TARGETS] = {
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.id = BOND_OPT_NS_TARGETS,
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.name = "ns_ip6_target",
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.desc = "NS targets in ffff:ffff::ffff:ffff form",
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.flags = BOND_OPTFLAG_RAWVAL,
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.set = bond_option_ns_ip6_targets_set
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},
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[BOND_OPT_DOWNDELAY] = {
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.id = BOND_OPT_DOWNDELAY,
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.name = "downdelay",
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.desc = "Delay before considering link down, in milliseconds",
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.values = bond_intmax_tbl,
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.set = bond_option_downdelay_set
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},
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[BOND_OPT_UPDELAY] = {
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.id = BOND_OPT_UPDELAY,
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.name = "updelay",
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.desc = "Delay before considering link up, in milliseconds",
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.values = bond_intmax_tbl,
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.set = bond_option_updelay_set
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},
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[BOND_OPT_LACP_ACTIVE] = {
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.id = BOND_OPT_LACP_ACTIVE,
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.name = "lacp_active",
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.desc = "Send LACPDU frames with configured lacp rate or acts as speak when spoken to",
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.flags = BOND_OPTFLAG_IFDOWN,
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.unsuppmodes = BOND_MODE_ALL_EX(BIT(BOND_MODE_8023AD)),
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.values = bond_lacp_active,
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.set = bond_option_lacp_active_set
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},
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[BOND_OPT_LACP_RATE] = {
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.id = BOND_OPT_LACP_RATE,
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.name = "lacp_rate",
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.desc = "LACPDU tx rate to request from 802.3ad partner",
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.flags = BOND_OPTFLAG_IFDOWN,
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.unsuppmodes = BOND_MODE_ALL_EX(BIT(BOND_MODE_8023AD)),
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.values = bond_lacp_rate_tbl,
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.set = bond_option_lacp_rate_set
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},
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[BOND_OPT_MINLINKS] = {
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.id = BOND_OPT_MINLINKS,
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.name = "min_links",
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.desc = "Minimum number of available links before turning on carrier",
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.values = bond_intmax_tbl,
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.set = bond_option_min_links_set
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},
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[BOND_OPT_AD_SELECT] = {
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.id = BOND_OPT_AD_SELECT,
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.name = "ad_select",
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.desc = "803.ad aggregation selection logic",
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.flags = BOND_OPTFLAG_IFDOWN,
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.values = bond_ad_select_tbl,
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.set = bond_option_ad_select_set
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},
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[BOND_OPT_NUM_PEER_NOTIF] = {
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.id = BOND_OPT_NUM_PEER_NOTIF,
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.name = "num_unsol_na",
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.desc = "Number of peer notifications to send on failover event",
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.values = bond_num_peer_notif_tbl,
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.set = bond_option_num_peer_notif_set
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},
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[BOND_OPT_MIIMON] = {
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.id = BOND_OPT_MIIMON,
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.name = "miimon",
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.desc = "Link check interval in milliseconds",
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.values = bond_intmax_tbl,
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.set = bond_option_miimon_set
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},
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[BOND_OPT_PRIO] = {
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.id = BOND_OPT_PRIO,
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.name = "prio",
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.desc = "Link priority for failover re-selection",
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.flags = BOND_OPTFLAG_RAWVAL,
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.unsuppmodes = BOND_MODE_ALL_EX(BIT(BOND_MODE_ACTIVEBACKUP) |
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BIT(BOND_MODE_TLB) |
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BIT(BOND_MODE_ALB)),
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.set = bond_option_prio_set
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},
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[BOND_OPT_PRIMARY] = {
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.id = BOND_OPT_PRIMARY,
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.name = "primary",
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.desc = "Primary network device to use",
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.flags = BOND_OPTFLAG_RAWVAL,
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.unsuppmodes = BOND_MODE_ALL_EX(BIT(BOND_MODE_ACTIVEBACKUP) |
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BIT(BOND_MODE_TLB) |
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BIT(BOND_MODE_ALB)),
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.set = bond_option_primary_set
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},
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[BOND_OPT_PRIMARY_RESELECT] = {
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.id = BOND_OPT_PRIMARY_RESELECT,
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.name = "primary_reselect",
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.desc = "Reselect primary slave once it comes up",
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.values = bond_primary_reselect_tbl,
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.set = bond_option_primary_reselect_set
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},
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[BOND_OPT_USE_CARRIER] = {
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.id = BOND_OPT_USE_CARRIER,
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.name = "use_carrier",
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.desc = "Use netif_carrier_ok (vs MII ioctls) in miimon",
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.values = bond_use_carrier_tbl,
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.set = bond_option_use_carrier_set
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},
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[BOND_OPT_ACTIVE_SLAVE] = {
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.id = BOND_OPT_ACTIVE_SLAVE,
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.name = "active_slave",
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.desc = "Currently active slave",
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.flags = BOND_OPTFLAG_RAWVAL,
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.unsuppmodes = BOND_MODE_ALL_EX(BIT(BOND_MODE_ACTIVEBACKUP) |
|
|
BIT(BOND_MODE_TLB) |
|
|
BIT(BOND_MODE_ALB)),
|
|
.set = bond_option_active_slave_set
|
|
},
|
|
[BOND_OPT_QUEUE_ID] = {
|
|
.id = BOND_OPT_QUEUE_ID,
|
|
.name = "queue_id",
|
|
.desc = "Set queue id of a slave",
|
|
.flags = BOND_OPTFLAG_RAWVAL,
|
|
.set = bond_option_queue_id_set
|
|
},
|
|
[BOND_OPT_ALL_SLAVES_ACTIVE] = {
|
|
.id = BOND_OPT_ALL_SLAVES_ACTIVE,
|
|
.name = "all_slaves_active",
|
|
.desc = "Keep all frames received on an interface by setting active flag for all slaves",
|
|
.values = bond_all_slaves_active_tbl,
|
|
.set = bond_option_all_slaves_active_set
|
|
},
|
|
[BOND_OPT_RESEND_IGMP] = {
|
|
.id = BOND_OPT_RESEND_IGMP,
|
|
.name = "resend_igmp",
|
|
.desc = "Number of IGMP membership reports to send on link failure",
|
|
.values = bond_resend_igmp_tbl,
|
|
.set = bond_option_resend_igmp_set
|
|
},
|
|
[BOND_OPT_LP_INTERVAL] = {
|
|
.id = BOND_OPT_LP_INTERVAL,
|
|
.name = "lp_interval",
|
|
.desc = "The number of seconds between instances where the bonding driver sends learning packets to each slave's peer switch",
|
|
.values = bond_lp_interval_tbl,
|
|
.set = bond_option_lp_interval_set
|
|
},
|
|
[BOND_OPT_SLAVES] = {
|
|
.id = BOND_OPT_SLAVES,
|
|
.name = "slaves",
|
|
.desc = "Slave membership management",
|
|
.flags = BOND_OPTFLAG_RAWVAL,
|
|
.set = bond_option_slaves_set
|
|
},
|
|
[BOND_OPT_TLB_DYNAMIC_LB] = {
|
|
.id = BOND_OPT_TLB_DYNAMIC_LB,
|
|
.name = "tlb_dynamic_lb",
|
|
.desc = "Enable dynamic flow shuffling",
|
|
.unsuppmodes = BOND_MODE_ALL_EX(BIT(BOND_MODE_TLB) | BIT(BOND_MODE_ALB)),
|
|
.values = bond_tlb_dynamic_lb_tbl,
|
|
.flags = BOND_OPTFLAG_IFDOWN,
|
|
.set = bond_option_tlb_dynamic_lb_set,
|
|
},
|
|
[BOND_OPT_AD_ACTOR_SYS_PRIO] = {
|
|
.id = BOND_OPT_AD_ACTOR_SYS_PRIO,
|
|
.name = "ad_actor_sys_prio",
|
|
.unsuppmodes = BOND_MODE_ALL_EX(BIT(BOND_MODE_8023AD)),
|
|
.values = bond_ad_actor_sys_prio_tbl,
|
|
.set = bond_option_ad_actor_sys_prio_set,
|
|
},
|
|
[BOND_OPT_AD_ACTOR_SYSTEM] = {
|
|
.id = BOND_OPT_AD_ACTOR_SYSTEM,
|
|
.name = "ad_actor_system",
|
|
.unsuppmodes = BOND_MODE_ALL_EX(BIT(BOND_MODE_8023AD)),
|
|
.flags = BOND_OPTFLAG_RAWVAL,
|
|
.set = bond_option_ad_actor_system_set,
|
|
},
|
|
[BOND_OPT_AD_USER_PORT_KEY] = {
|
|
.id = BOND_OPT_AD_USER_PORT_KEY,
|
|
.name = "ad_user_port_key",
|
|
.unsuppmodes = BOND_MODE_ALL_EX(BIT(BOND_MODE_8023AD)),
|
|
.flags = BOND_OPTFLAG_IFDOWN,
|
|
.values = bond_ad_user_port_key_tbl,
|
|
.set = bond_option_ad_user_port_key_set,
|
|
},
|
|
[BOND_OPT_NUM_PEER_NOTIF_ALIAS] = {
|
|
.id = BOND_OPT_NUM_PEER_NOTIF_ALIAS,
|
|
.name = "num_grat_arp",
|
|
.desc = "Number of peer notifications to send on failover event",
|
|
.values = bond_num_peer_notif_tbl,
|
|
.set = bond_option_num_peer_notif_set
|
|
},
|
|
[BOND_OPT_PEER_NOTIF_DELAY] = {
|
|
.id = BOND_OPT_PEER_NOTIF_DELAY,
|
|
.name = "peer_notif_delay",
|
|
.desc = "Delay between each peer notification on failover event, in milliseconds",
|
|
.values = bond_peer_notif_delay_tbl,
|
|
.set = bond_option_peer_notif_delay_set
|
|
}
|
|
};
|
|
|
|
/* Searches for an option by name */
|
|
const struct bond_option *bond_opt_get_by_name(const char *name)
|
|
{
|
|
const struct bond_option *opt;
|
|
int option;
|
|
|
|
for (option = 0; option < BOND_OPT_LAST; option++) {
|
|
opt = bond_opt_get(option);
|
|
if (opt && !strcmp(opt->name, name))
|
|
return opt;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/* Searches for a value in opt's values[] table */
|
|
const struct bond_opt_value *bond_opt_get_val(unsigned int option, u64 val)
|
|
{
|
|
const struct bond_option *opt;
|
|
int i;
|
|
|
|
opt = bond_opt_get(option);
|
|
if (WARN_ON(!opt))
|
|
return NULL;
|
|
for (i = 0; opt->values && opt->values[i].string; i++)
|
|
if (opt->values[i].value == val)
|
|
return &opt->values[i];
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/* Searches for a value in opt's values[] table which matches the flagmask */
|
|
static const struct bond_opt_value *bond_opt_get_flags(const struct bond_option *opt,
|
|
u32 flagmask)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; opt->values && opt->values[i].string; i++)
|
|
if (opt->values[i].flags & flagmask)
|
|
return &opt->values[i];
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/* If maxval is missing then there's no range to check. In case minval is
|
|
* missing then it's considered to be 0.
|
|
*/
|
|
static bool bond_opt_check_range(const struct bond_option *opt, u64 val)
|
|
{
|
|
const struct bond_opt_value *minval, *maxval;
|
|
|
|
minval = bond_opt_get_flags(opt, BOND_VALFLAG_MIN);
|
|
maxval = bond_opt_get_flags(opt, BOND_VALFLAG_MAX);
|
|
if (!maxval || (minval && val < minval->value) || val > maxval->value)
|
|
return false;
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* bond_opt_parse - parse option value
|
|
* @opt: the option to parse against
|
|
* @val: value to parse
|
|
*
|
|
* This function tries to extract the value from @val and check if it's
|
|
* a possible match for the option and returns NULL if a match isn't found,
|
|
* or the struct_opt_value that matched. It also strips the new line from
|
|
* @val->string if it's present.
|
|
*/
|
|
const struct bond_opt_value *bond_opt_parse(const struct bond_option *opt,
|
|
struct bond_opt_value *val)
|
|
{
|
|
char *p, valstr[BOND_OPT_MAX_NAMELEN + 1] = { 0, };
|
|
const struct bond_opt_value *tbl;
|
|
const struct bond_opt_value *ret = NULL;
|
|
bool checkval;
|
|
int i, rv;
|
|
|
|
/* No parsing if the option wants a raw val */
|
|
if (opt->flags & BOND_OPTFLAG_RAWVAL)
|
|
return val;
|
|
|
|
tbl = opt->values;
|
|
if (!tbl)
|
|
goto out;
|
|
|
|
/* ULLONG_MAX is used to bypass string processing */
|
|
checkval = val->value != ULLONG_MAX;
|
|
if (!checkval) {
|
|
if (!val->string)
|
|
goto out;
|
|
p = strchr(val->string, '\n');
|
|
if (p)
|
|
*p = '\0';
|
|
for (p = val->string; *p; p++)
|
|
if (!(isdigit(*p) || isspace(*p)))
|
|
break;
|
|
/* The following code extracts the string to match or the value
|
|
* and sets checkval appropriately
|
|
*/
|
|
if (*p) {
|
|
rv = sscanf(val->string, "%32s", valstr);
|
|
} else {
|
|
rv = sscanf(val->string, "%llu", &val->value);
|
|
checkval = true;
|
|
}
|
|
if (!rv)
|
|
goto out;
|
|
}
|
|
|
|
for (i = 0; tbl[i].string; i++) {
|
|
/* Check for exact match */
|
|
if (checkval) {
|
|
if (val->value == tbl[i].value)
|
|
ret = &tbl[i];
|
|
} else {
|
|
if (!strcmp(valstr, "default") &&
|
|
(tbl[i].flags & BOND_VALFLAG_DEFAULT))
|
|
ret = &tbl[i];
|
|
|
|
if (!strcmp(valstr, tbl[i].string))
|
|
ret = &tbl[i];
|
|
}
|
|
/* Found an exact match */
|
|
if (ret)
|
|
goto out;
|
|
}
|
|
/* Possible range match */
|
|
if (checkval && bond_opt_check_range(opt, val->value))
|
|
ret = val;
|
|
out:
|
|
return ret;
|
|
}
|
|
|
|
/* Check opt's dependencies against bond mode and currently set options */
|
|
static int bond_opt_check_deps(struct bonding *bond,
|
|
const struct bond_option *opt)
|
|
{
|
|
struct bond_params *params = &bond->params;
|
|
|
|
if (test_bit(params->mode, &opt->unsuppmodes))
|
|
return -EACCES;
|
|
if ((opt->flags & BOND_OPTFLAG_NOSLAVES) && bond_has_slaves(bond))
|
|
return -ENOTEMPTY;
|
|
if ((opt->flags & BOND_OPTFLAG_IFDOWN) && (bond->dev->flags & IFF_UP))
|
|
return -EBUSY;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void bond_opt_dep_print(struct bonding *bond,
|
|
const struct bond_option *opt,
|
|
struct nlattr *bad_attr,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
const struct bond_opt_value *modeval;
|
|
struct bond_params *params;
|
|
|
|
params = &bond->params;
|
|
modeval = bond_opt_get_val(BOND_OPT_MODE, params->mode);
|
|
if (test_bit(params->mode, &opt->unsuppmodes)) {
|
|
netdev_err(bond->dev, "option %s: mode dependency failed, not supported in mode %s(%llu)\n",
|
|
opt->name, modeval->string, modeval->value);
|
|
NL_SET_ERR_MSG_ATTR(extack, bad_attr,
|
|
"option not supported in mode");
|
|
}
|
|
}
|
|
|
|
static void bond_opt_error_interpret(struct bonding *bond,
|
|
const struct bond_option *opt,
|
|
int error, const struct bond_opt_value *val,
|
|
struct nlattr *bad_attr,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
const struct bond_opt_value *minval, *maxval;
|
|
char *p;
|
|
|
|
switch (error) {
|
|
case -EINVAL:
|
|
NL_SET_ERR_MSG_ATTR(extack, bad_attr, "invalid option value");
|
|
if (val) {
|
|
if (val->string) {
|
|
/* sometimes RAWVAL opts may have new lines */
|
|
p = strchr(val->string, '\n');
|
|
if (p)
|
|
*p = '\0';
|
|
netdev_err(bond->dev, "option %s: invalid value (%s)\n",
|
|
opt->name, val->string);
|
|
} else {
|
|
netdev_err(bond->dev, "option %s: invalid value (%llu)\n",
|
|
opt->name, val->value);
|
|
}
|
|
}
|
|
minval = bond_opt_get_flags(opt, BOND_VALFLAG_MIN);
|
|
maxval = bond_opt_get_flags(opt, BOND_VALFLAG_MAX);
|
|
if (!maxval)
|
|
break;
|
|
netdev_err(bond->dev, "option %s: allowed values %llu - %llu\n",
|
|
opt->name, minval ? minval->value : 0, maxval->value);
|
|
break;
|
|
case -EACCES:
|
|
bond_opt_dep_print(bond, opt, bad_attr, extack);
|
|
break;
|
|
case -ENOTEMPTY:
|
|
NL_SET_ERR_MSG_ATTR(extack, bad_attr,
|
|
"unable to set option because the bond device has slaves");
|
|
netdev_err(bond->dev, "option %s: unable to set because the bond device has slaves\n",
|
|
opt->name);
|
|
break;
|
|
case -EBUSY:
|
|
NL_SET_ERR_MSG_ATTR(extack, bad_attr,
|
|
"unable to set option because the bond is up");
|
|
netdev_err(bond->dev, "option %s: unable to set because the bond device is up\n",
|
|
opt->name);
|
|
break;
|
|
case -ENODEV:
|
|
if (val && val->string) {
|
|
p = strchr(val->string, '\n');
|
|
if (p)
|
|
*p = '\0';
|
|
netdev_err(bond->dev, "option %s: interface %s does not exist!\n",
|
|
opt->name, val->string);
|
|
NL_SET_ERR_MSG_ATTR(extack, bad_attr,
|
|
"interface does not exist");
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* __bond_opt_set - set a bonding option
|
|
* @bond: target bond device
|
|
* @option: option to set
|
|
* @val: value to set it to
|
|
* @bad_attr: netlink attribue that caused the error
|
|
* @extack: extended netlink error structure, used when an error message
|
|
* needs to be returned to the caller via netlink
|
|
*
|
|
* This function is used to change the bond's option value, it can be
|
|
* used for both enabling/changing an option and for disabling it. RTNL lock
|
|
* must be obtained before calling this function.
|
|
*/
|
|
int __bond_opt_set(struct bonding *bond,
|
|
unsigned int option, struct bond_opt_value *val,
|
|
struct nlattr *bad_attr, struct netlink_ext_ack *extack)
|
|
{
|
|
const struct bond_opt_value *retval = NULL;
|
|
const struct bond_option *opt;
|
|
int ret = -ENOENT;
|
|
|
|
ASSERT_RTNL();
|
|
|
|
opt = bond_opt_get(option);
|
|
if (WARN_ON(!val) || WARN_ON(!opt))
|
|
goto out;
|
|
ret = bond_opt_check_deps(bond, opt);
|
|
if (ret)
|
|
goto out;
|
|
retval = bond_opt_parse(opt, val);
|
|
if (!retval) {
|
|
ret = -EINVAL;
|
|
goto out;
|
|
}
|
|
ret = opt->set(bond, retval);
|
|
out:
|
|
if (ret)
|
|
bond_opt_error_interpret(bond, opt, ret, val, bad_attr, extack);
|
|
|
|
return ret;
|
|
}
|
|
/**
|
|
* __bond_opt_set_notify - set a bonding option
|
|
* @bond: target bond device
|
|
* @option: option to set
|
|
* @val: value to set it to
|
|
*
|
|
* This function is used to change the bond's option value and trigger
|
|
* a notification to user sapce. It can be used for both enabling/changing
|
|
* an option and for disabling it. RTNL lock must be obtained before calling
|
|
* this function.
|
|
*/
|
|
int __bond_opt_set_notify(struct bonding *bond,
|
|
unsigned int option, struct bond_opt_value *val)
|
|
{
|
|
int ret;
|
|
|
|
ASSERT_RTNL();
|
|
|
|
ret = __bond_opt_set(bond, option, val, NULL, NULL);
|
|
|
|
if (!ret && (bond->dev->reg_state == NETREG_REGISTERED))
|
|
call_netdevice_notifiers(NETDEV_CHANGEINFODATA, bond->dev);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* bond_opt_tryset_rtnl - try to acquire rtnl and call __bond_opt_set
|
|
* @bond: target bond device
|
|
* @option: option to set
|
|
* @buf: value to set it to
|
|
*
|
|
* This function tries to acquire RTNL without blocking and if successful
|
|
* calls __bond_opt_set. It is mainly used for sysfs option manipulation.
|
|
*/
|
|
int bond_opt_tryset_rtnl(struct bonding *bond, unsigned int option, char *buf)
|
|
{
|
|
struct bond_opt_value optval;
|
|
int ret;
|
|
|
|
if (!rtnl_trylock())
|
|
return restart_syscall();
|
|
bond_opt_initstr(&optval, buf);
|
|
ret = __bond_opt_set_notify(bond, option, &optval);
|
|
rtnl_unlock();
|
|
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* bond_opt_get - get a pointer to an option
|
|
* @option: option for which to return a pointer
|
|
*
|
|
* This function checks if option is valid and if so returns a pointer
|
|
* to its entry in the bond_opts[] option array.
|
|
*/
|
|
const struct bond_option *bond_opt_get(unsigned int option)
|
|
{
|
|
if (!BOND_OPT_VALID(option))
|
|
return NULL;
|
|
|
|
return &bond_opts[option];
|
|
}
|
|
|
|
static bool bond_set_xfrm_features(struct bonding *bond)
|
|
{
|
|
if (!IS_ENABLED(CONFIG_XFRM_OFFLOAD))
|
|
return false;
|
|
|
|
if (BOND_MODE(bond) == BOND_MODE_ACTIVEBACKUP)
|
|
bond->dev->wanted_features |= BOND_XFRM_FEATURES;
|
|
else
|
|
bond->dev->wanted_features &= ~BOND_XFRM_FEATURES;
|
|
|
|
return true;
|
|
}
|
|
|
|
static int bond_option_mode_set(struct bonding *bond,
|
|
const struct bond_opt_value *newval)
|
|
{
|
|
if (!bond_mode_uses_arp(newval->value)) {
|
|
if (bond->params.arp_interval) {
|
|
netdev_dbg(bond->dev, "%s mode is incompatible with arp monitoring, start mii monitoring\n",
|
|
newval->string);
|
|
/* disable arp monitoring */
|
|
bond->params.arp_interval = 0;
|
|
}
|
|
|
|
if (!bond->params.miimon) {
|
|
/* set miimon to default value */
|
|
bond->params.miimon = BOND_DEFAULT_MIIMON;
|
|
netdev_dbg(bond->dev, "Setting MII monitoring interval to %d\n",
|
|
bond->params.miimon);
|
|
}
|
|
}
|
|
|
|
if (newval->value == BOND_MODE_ALB)
|
|
bond->params.tlb_dynamic_lb = 1;
|
|
|
|
/* don't cache arp_validate between modes */
|
|
bond->params.arp_validate = BOND_ARP_VALIDATE_NONE;
|
|
bond->params.mode = newval->value;
|
|
|
|
if (bond->dev->reg_state == NETREG_REGISTERED) {
|
|
bool update = false;
|
|
|
|
update |= bond_set_xfrm_features(bond);
|
|
|
|
if (update)
|
|
netdev_update_features(bond->dev);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int bond_option_active_slave_set(struct bonding *bond,
|
|
const struct bond_opt_value *newval)
|
|
{
|
|
char ifname[IFNAMSIZ] = { 0, };
|
|
struct net_device *slave_dev;
|
|
int ret = 0;
|
|
|
|
sscanf(newval->string, "%15s", ifname); /* IFNAMSIZ */
|
|
if (!strlen(ifname) || newval->string[0] == '\n') {
|
|
slave_dev = NULL;
|
|
} else {
|
|
slave_dev = __dev_get_by_name(dev_net(bond->dev), ifname);
|
|
if (!slave_dev)
|
|
return -ENODEV;
|
|
}
|
|
|
|
if (slave_dev) {
|
|
if (!netif_is_bond_slave(slave_dev)) {
|
|
slave_err(bond->dev, slave_dev, "Device is not bonding slave\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (bond->dev != netdev_master_upper_dev_get(slave_dev)) {
|
|
slave_err(bond->dev, slave_dev, "Device is not our slave\n");
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
block_netpoll_tx();
|
|
/* check to see if we are clearing active */
|
|
if (!slave_dev) {
|
|
netdev_dbg(bond->dev, "Clearing current active slave\n");
|
|
RCU_INIT_POINTER(bond->curr_active_slave, NULL);
|
|
bond_select_active_slave(bond);
|
|
} else {
|
|
struct slave *old_active = rtnl_dereference(bond->curr_active_slave);
|
|
struct slave *new_active = bond_slave_get_rtnl(slave_dev);
|
|
|
|
BUG_ON(!new_active);
|
|
|
|
if (new_active == old_active) {
|
|
/* do nothing */
|
|
slave_dbg(bond->dev, new_active->dev, "is already the current active slave\n");
|
|
} else {
|
|
if (old_active && (new_active->link == BOND_LINK_UP) &&
|
|
bond_slave_is_up(new_active)) {
|
|
slave_dbg(bond->dev, new_active->dev, "Setting as active slave\n");
|
|
bond_change_active_slave(bond, new_active);
|
|
} else {
|
|
slave_err(bond->dev, new_active->dev, "Could not set as active slave; either %s is down or the link is down\n",
|
|
new_active->dev->name);
|
|
ret = -EINVAL;
|
|
}
|
|
}
|
|
}
|
|
unblock_netpoll_tx();
|
|
|
|
return ret;
|
|
}
|
|
|
|
/* There are two tricky bits here. First, if MII monitoring is activated, then
|
|
* we must disable ARP monitoring. Second, if the timer isn't running, we must
|
|
* start it.
|
|
*/
|
|
static int bond_option_miimon_set(struct bonding *bond,
|
|
const struct bond_opt_value *newval)
|
|
{
|
|
netdev_dbg(bond->dev, "Setting MII monitoring interval to %llu\n",
|
|
newval->value);
|
|
bond->params.miimon = newval->value;
|
|
if (bond->params.updelay)
|
|
netdev_dbg(bond->dev, "Note: Updating updelay (to %d) since it is a multiple of the miimon value\n",
|
|
bond->params.updelay * bond->params.miimon);
|
|
if (bond->params.downdelay)
|
|
netdev_dbg(bond->dev, "Note: Updating downdelay (to %d) since it is a multiple of the miimon value\n",
|
|
bond->params.downdelay * bond->params.miimon);
|
|
if (bond->params.peer_notif_delay)
|
|
netdev_dbg(bond->dev, "Note: Updating peer_notif_delay (to %d) since it is a multiple of the miimon value\n",
|
|
bond->params.peer_notif_delay * bond->params.miimon);
|
|
if (newval->value && bond->params.arp_interval) {
|
|
netdev_dbg(bond->dev, "MII monitoring cannot be used with ARP monitoring - disabling ARP monitoring...\n");
|
|
bond->params.arp_interval = 0;
|
|
if (bond->params.arp_validate)
|
|
bond->params.arp_validate = BOND_ARP_VALIDATE_NONE;
|
|
}
|
|
if (bond->dev->flags & IFF_UP) {
|
|
/* If the interface is up, we may need to fire off
|
|
* the MII timer. If the interface is down, the
|
|
* timer will get fired off when the open function
|
|
* is called.
|
|
*/
|
|
if (!newval->value) {
|
|
cancel_delayed_work_sync(&bond->mii_work);
|
|
} else {
|
|
cancel_delayed_work_sync(&bond->arp_work);
|
|
queue_delayed_work(bond->wq, &bond->mii_work, 0);
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Set up, down and peer notification delays. These must be multiples
|
|
* of the MII monitoring value, and are stored internally as the
|
|
* multiplier. Thus, we must translate to MS for the real world.
|
|
*/
|
|
static int _bond_option_delay_set(struct bonding *bond,
|
|
const struct bond_opt_value *newval,
|
|
const char *name,
|
|
int *target)
|
|
{
|
|
int value = newval->value;
|
|
|
|
if (!bond->params.miimon) {
|
|
netdev_err(bond->dev, "Unable to set %s as MII monitoring is disabled\n",
|
|
name);
|
|
return -EPERM;
|
|
}
|
|
if ((value % bond->params.miimon) != 0) {
|
|
netdev_warn(bond->dev,
|
|
"%s (%d) is not a multiple of miimon (%d), value rounded to %d ms\n",
|
|
name,
|
|
value, bond->params.miimon,
|
|
(value / bond->params.miimon) *
|
|
bond->params.miimon);
|
|
}
|
|
*target = value / bond->params.miimon;
|
|
netdev_dbg(bond->dev, "Setting %s to %d\n",
|
|
name,
|
|
*target * bond->params.miimon);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int bond_option_updelay_set(struct bonding *bond,
|
|
const struct bond_opt_value *newval)
|
|
{
|
|
return _bond_option_delay_set(bond, newval, "up delay",
|
|
&bond->params.updelay);
|
|
}
|
|
|
|
static int bond_option_downdelay_set(struct bonding *bond,
|
|
const struct bond_opt_value *newval)
|
|
{
|
|
return _bond_option_delay_set(bond, newval, "down delay",
|
|
&bond->params.downdelay);
|
|
}
|
|
|
|
static int bond_option_peer_notif_delay_set(struct bonding *bond,
|
|
const struct bond_opt_value *newval)
|
|
{
|
|
int ret = _bond_option_delay_set(bond, newval,
|
|
"peer notification delay",
|
|
&bond->params.peer_notif_delay);
|
|
return ret;
|
|
}
|
|
|
|
static int bond_option_use_carrier_set(struct bonding *bond,
|
|
const struct bond_opt_value *newval)
|
|
{
|
|
netdev_dbg(bond->dev, "Setting use_carrier to %llu\n",
|
|
newval->value);
|
|
bond->params.use_carrier = newval->value;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* There are two tricky bits here. First, if ARP monitoring is activated, then
|
|
* we must disable MII monitoring. Second, if the ARP timer isn't running,
|
|
* we must start it.
|
|
*/
|
|
static int bond_option_arp_interval_set(struct bonding *bond,
|
|
const struct bond_opt_value *newval)
|
|
{
|
|
netdev_dbg(bond->dev, "Setting ARP monitoring interval to %llu\n",
|
|
newval->value);
|
|
bond->params.arp_interval = newval->value;
|
|
if (newval->value) {
|
|
if (bond->params.miimon) {
|
|
netdev_dbg(bond->dev, "ARP monitoring cannot be used with MII monitoring. Disabling MII monitoring\n");
|
|
bond->params.miimon = 0;
|
|
}
|
|
if (!bond->params.arp_targets[0])
|
|
netdev_dbg(bond->dev, "ARP monitoring has been set up, but no ARP targets have been specified\n");
|
|
}
|
|
if (bond->dev->flags & IFF_UP) {
|
|
/* If the interface is up, we may need to fire off
|
|
* the ARP timer. If the interface is down, the
|
|
* timer will get fired off when the open function
|
|
* is called.
|
|
*/
|
|
if (!newval->value) {
|
|
if (bond->params.arp_validate)
|
|
bond->recv_probe = NULL;
|
|
cancel_delayed_work_sync(&bond->arp_work);
|
|
} else {
|
|
/* arp_validate can be set only in active-backup mode */
|
|
bond->recv_probe = bond_rcv_validate;
|
|
cancel_delayed_work_sync(&bond->mii_work);
|
|
queue_delayed_work(bond->wq, &bond->arp_work, 0);
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void _bond_options_arp_ip_target_set(struct bonding *bond, int slot,
|
|
__be32 target,
|
|
unsigned long last_rx)
|
|
{
|
|
__be32 *targets = bond->params.arp_targets;
|
|
struct list_head *iter;
|
|
struct slave *slave;
|
|
|
|
if (slot >= 0 && slot < BOND_MAX_ARP_TARGETS) {
|
|
bond_for_each_slave(bond, slave, iter)
|
|
slave->target_last_arp_rx[slot] = last_rx;
|
|
targets[slot] = target;
|
|
}
|
|
}
|
|
|
|
static int _bond_option_arp_ip_target_add(struct bonding *bond, __be32 target)
|
|
{
|
|
__be32 *targets = bond->params.arp_targets;
|
|
int ind;
|
|
|
|
if (!bond_is_ip_target_ok(target)) {
|
|
netdev_err(bond->dev, "invalid ARP target %pI4 specified for addition\n",
|
|
&target);
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (bond_get_targets_ip(targets, target) != -1) { /* dup */
|
|
netdev_err(bond->dev, "ARP target %pI4 is already present\n",
|
|
&target);
|
|
return -EINVAL;
|
|
}
|
|
|
|
ind = bond_get_targets_ip(targets, 0); /* first free slot */
|
|
if (ind == -1) {
|
|
netdev_err(bond->dev, "ARP target table is full!\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
netdev_dbg(bond->dev, "Adding ARP target %pI4\n", &target);
|
|
|
|
_bond_options_arp_ip_target_set(bond, ind, target, jiffies);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int bond_option_arp_ip_target_add(struct bonding *bond, __be32 target)
|
|
{
|
|
return _bond_option_arp_ip_target_add(bond, target);
|
|
}
|
|
|
|
static int bond_option_arp_ip_target_rem(struct bonding *bond, __be32 target)
|
|
{
|
|
__be32 *targets = bond->params.arp_targets;
|
|
struct list_head *iter;
|
|
struct slave *slave;
|
|
unsigned long *targets_rx;
|
|
int ind, i;
|
|
|
|
if (!bond_is_ip_target_ok(target)) {
|
|
netdev_err(bond->dev, "invalid ARP target %pI4 specified for removal\n",
|
|
&target);
|
|
return -EINVAL;
|
|
}
|
|
|
|
ind = bond_get_targets_ip(targets, target);
|
|
if (ind == -1) {
|
|
netdev_err(bond->dev, "unable to remove nonexistent ARP target %pI4\n",
|
|
&target);
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (ind == 0 && !targets[1] && bond->params.arp_interval)
|
|
netdev_warn(bond->dev, "Removing last arp target with arp_interval on\n");
|
|
|
|
netdev_dbg(bond->dev, "Removing ARP target %pI4\n", &target);
|
|
|
|
bond_for_each_slave(bond, slave, iter) {
|
|
targets_rx = slave->target_last_arp_rx;
|
|
for (i = ind; (i < BOND_MAX_ARP_TARGETS-1) && targets[i+1]; i++)
|
|
targets_rx[i] = targets_rx[i+1];
|
|
targets_rx[i] = 0;
|
|
}
|
|
for (i = ind; (i < BOND_MAX_ARP_TARGETS-1) && targets[i+1]; i++)
|
|
targets[i] = targets[i+1];
|
|
targets[i] = 0;
|
|
|
|
return 0;
|
|
}
|
|
|
|
void bond_option_arp_ip_targets_clear(struct bonding *bond)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < BOND_MAX_ARP_TARGETS; i++)
|
|
_bond_options_arp_ip_target_set(bond, i, 0, 0);
|
|
}
|
|
|
|
static int bond_option_arp_ip_targets_set(struct bonding *bond,
|
|
const struct bond_opt_value *newval)
|
|
{
|
|
int ret = -EPERM;
|
|
__be32 target;
|
|
|
|
if (newval->string) {
|
|
if (!in4_pton(newval->string+1, -1, (u8 *)&target, -1, NULL)) {
|
|
netdev_err(bond->dev, "invalid ARP target %pI4 specified\n",
|
|
&target);
|
|
return ret;
|
|
}
|
|
if (newval->string[0] == '+')
|
|
ret = bond_option_arp_ip_target_add(bond, target);
|
|
else if (newval->string[0] == '-')
|
|
ret = bond_option_arp_ip_target_rem(bond, target);
|
|
else
|
|
netdev_err(bond->dev, "no command found in arp_ip_targets file - use +<addr> or -<addr>\n");
|
|
} else {
|
|
target = newval->value;
|
|
ret = bond_option_arp_ip_target_add(bond, target);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
#if IS_ENABLED(CONFIG_IPV6)
|
|
static void _bond_options_ns_ip6_target_set(struct bonding *bond, int slot,
|
|
struct in6_addr *target,
|
|
unsigned long last_rx)
|
|
{
|
|
struct in6_addr *targets = bond->params.ns_targets;
|
|
struct list_head *iter;
|
|
struct slave *slave;
|
|
|
|
if (slot >= 0 && slot < BOND_MAX_NS_TARGETS) {
|
|
bond_for_each_slave(bond, slave, iter)
|
|
slave->target_last_arp_rx[slot] = last_rx;
|
|
targets[slot] = *target;
|
|
}
|
|
}
|
|
|
|
void bond_option_ns_ip6_targets_clear(struct bonding *bond)
|
|
{
|
|
struct in6_addr addr_any = in6addr_any;
|
|
int i;
|
|
|
|
for (i = 0; i < BOND_MAX_NS_TARGETS; i++)
|
|
_bond_options_ns_ip6_target_set(bond, i, &addr_any, 0);
|
|
}
|
|
|
|
static int bond_option_ns_ip6_targets_set(struct bonding *bond,
|
|
const struct bond_opt_value *newval)
|
|
{
|
|
struct in6_addr *target = (struct in6_addr *)newval->extra;
|
|
struct in6_addr *targets = bond->params.ns_targets;
|
|
struct in6_addr addr_any = in6addr_any;
|
|
int index;
|
|
|
|
if (!bond_is_ip6_target_ok(target)) {
|
|
netdev_err(bond->dev, "invalid NS target %pI6c specified for addition\n",
|
|
target);
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (bond_get_targets_ip6(targets, target) != -1) { /* dup */
|
|
netdev_err(bond->dev, "NS target %pI6c is already present\n",
|
|
target);
|
|
return -EINVAL;
|
|
}
|
|
|
|
index = bond_get_targets_ip6(targets, &addr_any); /* first free slot */
|
|
if (index == -1) {
|
|
netdev_err(bond->dev, "NS target table is full!\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
netdev_dbg(bond->dev, "Adding NS target %pI6c\n", target);
|
|
|
|
_bond_options_ns_ip6_target_set(bond, index, target, jiffies);
|
|
|
|
return 0;
|
|
}
|
|
#else
|
|
static int bond_option_ns_ip6_targets_set(struct bonding *bond,
|
|
const struct bond_opt_value *newval)
|
|
{
|
|
return -EPERM;
|
|
}
|
|
#endif
|
|
|
|
static int bond_option_arp_validate_set(struct bonding *bond,
|
|
const struct bond_opt_value *newval)
|
|
{
|
|
netdev_dbg(bond->dev, "Setting arp_validate to %s (%llu)\n",
|
|
newval->string, newval->value);
|
|
bond->params.arp_validate = newval->value;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int bond_option_arp_all_targets_set(struct bonding *bond,
|
|
const struct bond_opt_value *newval)
|
|
{
|
|
netdev_dbg(bond->dev, "Setting arp_all_targets to %s (%llu)\n",
|
|
newval->string, newval->value);
|
|
bond->params.arp_all_targets = newval->value;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int bond_option_missed_max_set(struct bonding *bond,
|
|
const struct bond_opt_value *newval)
|
|
{
|
|
netdev_dbg(bond->dev, "Setting missed max to %s (%llu)\n",
|
|
newval->string, newval->value);
|
|
bond->params.missed_max = newval->value;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int bond_option_prio_set(struct bonding *bond,
|
|
const struct bond_opt_value *newval)
|
|
{
|
|
struct slave *slave;
|
|
|
|
slave = bond_slave_get_rtnl(newval->slave_dev);
|
|
if (!slave) {
|
|
netdev_dbg(newval->slave_dev, "%s called on NULL slave\n", __func__);
|
|
return -ENODEV;
|
|
}
|
|
slave->prio = newval->value;
|
|
|
|
if (rtnl_dereference(bond->primary_slave))
|
|
slave_warn(bond->dev, slave->dev,
|
|
"prio updated, but will not affect failover re-selection as primary slave have been set\n");
|
|
else
|
|
bond_select_active_slave(bond);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int bond_option_primary_set(struct bonding *bond,
|
|
const struct bond_opt_value *newval)
|
|
{
|
|
char *p, *primary = newval->string;
|
|
struct list_head *iter;
|
|
struct slave *slave;
|
|
|
|
block_netpoll_tx();
|
|
|
|
p = strchr(primary, '\n');
|
|
if (p)
|
|
*p = '\0';
|
|
/* check to see if we are clearing primary */
|
|
if (!strlen(primary)) {
|
|
netdev_dbg(bond->dev, "Setting primary slave to None\n");
|
|
RCU_INIT_POINTER(bond->primary_slave, NULL);
|
|
memset(bond->params.primary, 0, sizeof(bond->params.primary));
|
|
bond_select_active_slave(bond);
|
|
goto out;
|
|
}
|
|
|
|
bond_for_each_slave(bond, slave, iter) {
|
|
if (strncmp(slave->dev->name, primary, IFNAMSIZ) == 0) {
|
|
slave_dbg(bond->dev, slave->dev, "Setting as primary slave\n");
|
|
rcu_assign_pointer(bond->primary_slave, slave);
|
|
strcpy(bond->params.primary, slave->dev->name);
|
|
bond->force_primary = true;
|
|
bond_select_active_slave(bond);
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
if (rtnl_dereference(bond->primary_slave)) {
|
|
netdev_dbg(bond->dev, "Setting primary slave to None\n");
|
|
RCU_INIT_POINTER(bond->primary_slave, NULL);
|
|
bond_select_active_slave(bond);
|
|
}
|
|
strscpy_pad(bond->params.primary, primary, IFNAMSIZ);
|
|
|
|
netdev_dbg(bond->dev, "Recording %s as primary, but it has not been enslaved yet\n",
|
|
primary);
|
|
|
|
out:
|
|
unblock_netpoll_tx();
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int bond_option_primary_reselect_set(struct bonding *bond,
|
|
const struct bond_opt_value *newval)
|
|
{
|
|
netdev_dbg(bond->dev, "Setting primary_reselect to %s (%llu)\n",
|
|
newval->string, newval->value);
|
|
bond->params.primary_reselect = newval->value;
|
|
|
|
block_netpoll_tx();
|
|
bond_select_active_slave(bond);
|
|
unblock_netpoll_tx();
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int bond_option_fail_over_mac_set(struct bonding *bond,
|
|
const struct bond_opt_value *newval)
|
|
{
|
|
netdev_dbg(bond->dev, "Setting fail_over_mac to %s (%llu)\n",
|
|
newval->string, newval->value);
|
|
bond->params.fail_over_mac = newval->value;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int bond_option_xmit_hash_policy_set(struct bonding *bond,
|
|
const struct bond_opt_value *newval)
|
|
{
|
|
netdev_dbg(bond->dev, "Setting xmit hash policy to %s (%llu)\n",
|
|
newval->string, newval->value);
|
|
bond->params.xmit_policy = newval->value;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int bond_option_resend_igmp_set(struct bonding *bond,
|
|
const struct bond_opt_value *newval)
|
|
{
|
|
netdev_dbg(bond->dev, "Setting resend_igmp to %llu\n",
|
|
newval->value);
|
|
bond->params.resend_igmp = newval->value;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int bond_option_num_peer_notif_set(struct bonding *bond,
|
|
const struct bond_opt_value *newval)
|
|
{
|
|
bond->params.num_peer_notif = newval->value;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int bond_option_all_slaves_active_set(struct bonding *bond,
|
|
const struct bond_opt_value *newval)
|
|
{
|
|
struct list_head *iter;
|
|
struct slave *slave;
|
|
|
|
if (newval->value == bond->params.all_slaves_active)
|
|
return 0;
|
|
bond->params.all_slaves_active = newval->value;
|
|
bond_for_each_slave(bond, slave, iter) {
|
|
if (!bond_is_active_slave(slave)) {
|
|
if (newval->value)
|
|
slave->inactive = 0;
|
|
else
|
|
slave->inactive = 1;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int bond_option_min_links_set(struct bonding *bond,
|
|
const struct bond_opt_value *newval)
|
|
{
|
|
netdev_dbg(bond->dev, "Setting min links value to %llu\n",
|
|
newval->value);
|
|
bond->params.min_links = newval->value;
|
|
bond_set_carrier(bond);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int bond_option_lp_interval_set(struct bonding *bond,
|
|
const struct bond_opt_value *newval)
|
|
{
|
|
bond->params.lp_interval = newval->value;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int bond_option_pps_set(struct bonding *bond,
|
|
const struct bond_opt_value *newval)
|
|
{
|
|
netdev_dbg(bond->dev, "Setting packets per slave to %llu\n",
|
|
newval->value);
|
|
bond->params.packets_per_slave = newval->value;
|
|
if (newval->value > 0) {
|
|
bond->params.reciprocal_packets_per_slave =
|
|
reciprocal_value(newval->value);
|
|
} else {
|
|
/* reciprocal_packets_per_slave is unused if
|
|
* packets_per_slave is 0 or 1, just initialize it
|
|
*/
|
|
bond->params.reciprocal_packets_per_slave =
|
|
(struct reciprocal_value) { 0 };
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int bond_option_lacp_active_set(struct bonding *bond,
|
|
const struct bond_opt_value *newval)
|
|
{
|
|
netdev_dbg(bond->dev, "Setting LACP active to %s (%llu)\n",
|
|
newval->string, newval->value);
|
|
bond->params.lacp_active = newval->value;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int bond_option_lacp_rate_set(struct bonding *bond,
|
|
const struct bond_opt_value *newval)
|
|
{
|
|
netdev_dbg(bond->dev, "Setting LACP rate to %s (%llu)\n",
|
|
newval->string, newval->value);
|
|
bond->params.lacp_fast = newval->value;
|
|
bond_3ad_update_lacp_rate(bond);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int bond_option_ad_select_set(struct bonding *bond,
|
|
const struct bond_opt_value *newval)
|
|
{
|
|
netdev_dbg(bond->dev, "Setting ad_select to %s (%llu)\n",
|
|
newval->string, newval->value);
|
|
bond->params.ad_select = newval->value;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int bond_option_queue_id_set(struct bonding *bond,
|
|
const struct bond_opt_value *newval)
|
|
{
|
|
struct slave *slave, *update_slave;
|
|
struct net_device *sdev;
|
|
struct list_head *iter;
|
|
char *delim;
|
|
int ret = 0;
|
|
u16 qid;
|
|
|
|
/* delim will point to queue id if successful */
|
|
delim = strchr(newval->string, ':');
|
|
if (!delim)
|
|
goto err_no_cmd;
|
|
|
|
/* Terminate string that points to device name and bump it
|
|
* up one, so we can read the queue id there.
|
|
*/
|
|
*delim = '\0';
|
|
if (sscanf(++delim, "%hd\n", &qid) != 1)
|
|
goto err_no_cmd;
|
|
|
|
/* Check buffer length, valid ifname and queue id */
|
|
if (!dev_valid_name(newval->string) ||
|
|
qid > bond->dev->real_num_tx_queues)
|
|
goto err_no_cmd;
|
|
|
|
/* Get the pointer to that interface if it exists */
|
|
sdev = __dev_get_by_name(dev_net(bond->dev), newval->string);
|
|
if (!sdev)
|
|
goto err_no_cmd;
|
|
|
|
/* Search for thes slave and check for duplicate qids */
|
|
update_slave = NULL;
|
|
bond_for_each_slave(bond, slave, iter) {
|
|
if (sdev == slave->dev)
|
|
/* We don't need to check the matching
|
|
* slave for dups, since we're overwriting it
|
|
*/
|
|
update_slave = slave;
|
|
else if (qid && qid == slave->queue_id) {
|
|
goto err_no_cmd;
|
|
}
|
|
}
|
|
|
|
if (!update_slave)
|
|
goto err_no_cmd;
|
|
|
|
/* Actually set the qids for the slave */
|
|
update_slave->queue_id = qid;
|
|
|
|
out:
|
|
return ret;
|
|
|
|
err_no_cmd:
|
|
netdev_dbg(bond->dev, "invalid input for queue_id set\n");
|
|
ret = -EPERM;
|
|
goto out;
|
|
|
|
}
|
|
|
|
static int bond_option_slaves_set(struct bonding *bond,
|
|
const struct bond_opt_value *newval)
|
|
{
|
|
char command[IFNAMSIZ + 1] = { 0, };
|
|
struct net_device *dev;
|
|
char *ifname;
|
|
int ret;
|
|
|
|
sscanf(newval->string, "%16s", command); /* IFNAMSIZ*/
|
|
ifname = command + 1;
|
|
if ((strlen(command) <= 1) ||
|
|
(command[0] != '+' && command[0] != '-') ||
|
|
!dev_valid_name(ifname))
|
|
goto err_no_cmd;
|
|
|
|
dev = __dev_get_by_name(dev_net(bond->dev), ifname);
|
|
if (!dev) {
|
|
netdev_dbg(bond->dev, "interface %s does not exist!\n",
|
|
ifname);
|
|
ret = -ENODEV;
|
|
goto out;
|
|
}
|
|
|
|
switch (command[0]) {
|
|
case '+':
|
|
slave_dbg(bond->dev, dev, "Enslaving interface\n");
|
|
ret = bond_enslave(bond->dev, dev, NULL);
|
|
break;
|
|
|
|
case '-':
|
|
slave_dbg(bond->dev, dev, "Releasing interface\n");
|
|
ret = bond_release(bond->dev, dev);
|
|
break;
|
|
|
|
default:
|
|
/* should not run here. */
|
|
goto err_no_cmd;
|
|
}
|
|
|
|
out:
|
|
return ret;
|
|
|
|
err_no_cmd:
|
|
netdev_err(bond->dev, "no command found in slaves file - use +ifname or -ifname\n");
|
|
ret = -EPERM;
|
|
goto out;
|
|
}
|
|
|
|
static int bond_option_tlb_dynamic_lb_set(struct bonding *bond,
|
|
const struct bond_opt_value *newval)
|
|
{
|
|
netdev_dbg(bond->dev, "Setting dynamic-lb to %s (%llu)\n",
|
|
newval->string, newval->value);
|
|
bond->params.tlb_dynamic_lb = newval->value;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int bond_option_ad_actor_sys_prio_set(struct bonding *bond,
|
|
const struct bond_opt_value *newval)
|
|
{
|
|
netdev_dbg(bond->dev, "Setting ad_actor_sys_prio to %llu\n",
|
|
newval->value);
|
|
|
|
bond->params.ad_actor_sys_prio = newval->value;
|
|
bond_3ad_update_ad_actor_settings(bond);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int bond_option_ad_actor_system_set(struct bonding *bond,
|
|
const struct bond_opt_value *newval)
|
|
{
|
|
u8 macaddr[ETH_ALEN];
|
|
u8 *mac;
|
|
|
|
if (newval->string) {
|
|
if (!mac_pton(newval->string, macaddr))
|
|
goto err;
|
|
mac = macaddr;
|
|
} else {
|
|
mac = (u8 *)&newval->value;
|
|
}
|
|
|
|
if (is_multicast_ether_addr(mac))
|
|
goto err;
|
|
|
|
netdev_dbg(bond->dev, "Setting ad_actor_system to %pM\n", mac);
|
|
ether_addr_copy(bond->params.ad_actor_system, mac);
|
|
bond_3ad_update_ad_actor_settings(bond);
|
|
|
|
return 0;
|
|
|
|
err:
|
|
netdev_err(bond->dev, "Invalid ad_actor_system MAC address.\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
static int bond_option_ad_user_port_key_set(struct bonding *bond,
|
|
const struct bond_opt_value *newval)
|
|
{
|
|
netdev_dbg(bond->dev, "Setting ad_user_port_key to %llu\n",
|
|
newval->value);
|
|
|
|
bond->params.ad_user_port_key = newval->value;
|
|
return 0;
|
|
}
|