| // SPDX-License-Identifier: GPL-2.0 |
| #include <linux/proc_fs.h> |
| #include <linux/ethtool.h> |
| #include <linux/export.h> |
| #include <net/net_namespace.h> |
| #include <net/netns/generic.h> |
| #include <net/bonding.h> |
| |
| #include "bonding_priv.h" |
| |
| static void *bond_info_seq_start(struct seq_file *seq, loff_t *pos) |
| __acquires(RCU) |
| { |
| struct bonding *bond = PDE_DATA(file_inode(seq->file)); |
| struct list_head *iter; |
| struct slave *slave; |
| loff_t off = 0; |
| |
| rcu_read_lock(); |
| |
| if (*pos == 0) |
| return SEQ_START_TOKEN; |
| |
| bond_for_each_slave_rcu(bond, slave, iter) |
| if (++off == *pos) |
| return slave; |
| |
| return NULL; |
| } |
| |
| static void *bond_info_seq_next(struct seq_file *seq, void *v, loff_t *pos) |
| { |
| struct bonding *bond = PDE_DATA(file_inode(seq->file)); |
| struct list_head *iter; |
| struct slave *slave; |
| bool found = false; |
| |
| ++*pos; |
| if (v == SEQ_START_TOKEN) |
| return bond_first_slave_rcu(bond); |
| |
| bond_for_each_slave_rcu(bond, slave, iter) { |
| if (found) |
| return slave; |
| if (slave == v) |
| found = true; |
| } |
| |
| return NULL; |
| } |
| |
| static void bond_info_seq_stop(struct seq_file *seq, void *v) |
| __releases(RCU) |
| { |
| rcu_read_unlock(); |
| } |
| |
| static void bond_info_show_master(struct seq_file *seq) |
| { |
| struct bonding *bond = PDE_DATA(file_inode(seq->file)); |
| const struct bond_opt_value *optval; |
| struct slave *curr, *primary; |
| int i; |
| |
| curr = rcu_dereference(bond->curr_active_slave); |
| |
| seq_printf(seq, "Bonding Mode: %s", |
| bond_mode_name(BOND_MODE(bond))); |
| |
| if (BOND_MODE(bond) == BOND_MODE_ACTIVEBACKUP && |
| bond->params.fail_over_mac) { |
| optval = bond_opt_get_val(BOND_OPT_FAIL_OVER_MAC, |
| bond->params.fail_over_mac); |
| seq_printf(seq, " (fail_over_mac %s)", optval->string); |
| } |
| |
| seq_printf(seq, "\n"); |
| |
| if (bond_mode_uses_xmit_hash(bond)) { |
| optval = bond_opt_get_val(BOND_OPT_XMIT_HASH, |
| bond->params.xmit_policy); |
| seq_printf(seq, "Transmit Hash Policy: %s (%d)\n", |
| optval->string, bond->params.xmit_policy); |
| } |
| |
| if (bond_uses_primary(bond)) { |
| primary = rcu_dereference(bond->primary_slave); |
| seq_printf(seq, "Primary Slave: %s", |
| primary ? primary->dev->name : "None"); |
| if (primary) { |
| optval = bond_opt_get_val(BOND_OPT_PRIMARY_RESELECT, |
| bond->params.primary_reselect); |
| seq_printf(seq, " (primary_reselect %s)", |
| optval->string); |
| } |
| |
| seq_printf(seq, "\nCurrently Active Slave: %s\n", |
| (curr) ? curr->dev->name : "None"); |
| } |
| |
| seq_printf(seq, "MII Status: %s\n", netif_carrier_ok(bond->dev) ? |
| "up" : "down"); |
| seq_printf(seq, "MII Polling Interval (ms): %d\n", bond->params.miimon); |
| seq_printf(seq, "Up Delay (ms): %d\n", |
| bond->params.updelay * bond->params.miimon); |
| seq_printf(seq, "Down Delay (ms): %d\n", |
| bond->params.downdelay * bond->params.miimon); |
| seq_printf(seq, "Peer Notification Delay (ms): %d\n", |
| bond->params.peer_notif_delay * bond->params.miimon); |
| |
| |
| /* ARP information */ |
| if (bond->params.arp_interval > 0) { |
| int printed = 0; |
| |
| seq_printf(seq, "ARP Polling Interval (ms): %d\n", |
| bond->params.arp_interval); |
| |
| seq_printf(seq, "ARP IP target/s (n.n.n.n form):"); |
| |
| for (i = 0; (i < BOND_MAX_ARP_TARGETS); i++) { |
| if (!bond->params.arp_targets[i]) |
| break; |
| if (printed) |
| seq_printf(seq, ","); |
| seq_printf(seq, " %pI4", &bond->params.arp_targets[i]); |
| printed = 1; |
| } |
| seq_printf(seq, "\n"); |
| } |
| |
| if (BOND_MODE(bond) == BOND_MODE_8023AD) { |
| struct ad_info ad_info; |
| |
| seq_puts(seq, "\n802.3ad info\n"); |
| seq_printf(seq, "LACP rate: %s\n", |
| (bond->params.lacp_fast) ? "fast" : "slow"); |
| seq_printf(seq, "Min links: %d\n", bond->params.min_links); |
| optval = bond_opt_get_val(BOND_OPT_AD_SELECT, |
| bond->params.ad_select); |
| seq_printf(seq, "Aggregator selection policy (ad_select): %s\n", |
| optval->string); |
| if (capable(CAP_NET_ADMIN)) { |
| seq_printf(seq, "System priority: %d\n", |
| BOND_AD_INFO(bond).system.sys_priority); |
| seq_printf(seq, "System MAC address: %pM\n", |
| &BOND_AD_INFO(bond).system.sys_mac_addr); |
| |
| if (__bond_3ad_get_active_agg_info(bond, &ad_info)) { |
| seq_printf(seq, |
| "bond %s has no active aggregator\n", |
| bond->dev->name); |
| } else { |
| seq_printf(seq, "Active Aggregator Info:\n"); |
| |
| seq_printf(seq, "\tAggregator ID: %d\n", |
| ad_info.aggregator_id); |
| seq_printf(seq, "\tNumber of ports: %d\n", |
| ad_info.ports); |
| seq_printf(seq, "\tActor Key: %d\n", |
| ad_info.actor_key); |
| seq_printf(seq, "\tPartner Key: %d\n", |
| ad_info.partner_key); |
| seq_printf(seq, "\tPartner Mac Address: %pM\n", |
| ad_info.partner_system); |
| } |
| } |
| } |
| } |
| |
| static void bond_info_show_slave(struct seq_file *seq, |
| const struct slave *slave) |
| { |
| struct bonding *bond = PDE_DATA(file_inode(seq->file)); |
| |
| seq_printf(seq, "\nSlave Interface: %s\n", slave->dev->name); |
| seq_printf(seq, "MII Status: %s\n", bond_slave_link_status(slave->link)); |
| if (slave->speed == SPEED_UNKNOWN) |
| seq_printf(seq, "Speed: %s\n", "Unknown"); |
| else |
| seq_printf(seq, "Speed: %d Mbps\n", slave->speed); |
| |
| if (slave->duplex == DUPLEX_UNKNOWN) |
| seq_printf(seq, "Duplex: %s\n", "Unknown"); |
| else |
| seq_printf(seq, "Duplex: %s\n", slave->duplex ? "full" : "half"); |
| |
| seq_printf(seq, "Link Failure Count: %u\n", |
| slave->link_failure_count); |
| |
| seq_printf(seq, "Permanent HW addr: %*phC\n", |
| slave->dev->addr_len, slave->perm_hwaddr); |
| seq_printf(seq, "Slave queue ID: %d\n", slave->queue_id); |
| |
| if (BOND_MODE(bond) == BOND_MODE_8023AD) { |
| const struct port *port = &SLAVE_AD_INFO(slave)->port; |
| const struct aggregator *agg = port->aggregator; |
| |
| if (agg) { |
| seq_printf(seq, "Aggregator ID: %d\n", |
| agg->aggregator_identifier); |
| seq_printf(seq, "Actor Churn State: %s\n", |
| bond_3ad_churn_desc(port->sm_churn_actor_state)); |
| seq_printf(seq, "Partner Churn State: %s\n", |
| bond_3ad_churn_desc(port->sm_churn_partner_state)); |
| seq_printf(seq, "Actor Churned Count: %d\n", |
| port->churn_actor_count); |
| seq_printf(seq, "Partner Churned Count: %d\n", |
| port->churn_partner_count); |
| |
| if (capable(CAP_NET_ADMIN)) { |
| seq_puts(seq, "details actor lacp pdu:\n"); |
| seq_printf(seq, " system priority: %d\n", |
| port->actor_system_priority); |
| seq_printf(seq, " system mac address: %pM\n", |
| &port->actor_system); |
| seq_printf(seq, " port key: %d\n", |
| port->actor_oper_port_key); |
| seq_printf(seq, " port priority: %d\n", |
| port->actor_port_priority); |
| seq_printf(seq, " port number: %d\n", |
| port->actor_port_number); |
| seq_printf(seq, " port state: %d\n", |
| port->actor_oper_port_state); |
| |
| seq_puts(seq, "details partner lacp pdu:\n"); |
| seq_printf(seq, " system priority: %d\n", |
| port->partner_oper.system_priority); |
| seq_printf(seq, " system mac address: %pM\n", |
| &port->partner_oper.system); |
| seq_printf(seq, " oper key: %d\n", |
| port->partner_oper.key); |
| seq_printf(seq, " port priority: %d\n", |
| port->partner_oper.port_priority); |
| seq_printf(seq, " port number: %d\n", |
| port->partner_oper.port_number); |
| seq_printf(seq, " port state: %d\n", |
| port->partner_oper.port_state); |
| } |
| } else { |
| seq_puts(seq, "Aggregator ID: N/A\n"); |
| } |
| } |
| } |
| |
| static int bond_info_seq_show(struct seq_file *seq, void *v) |
| { |
| if (v == SEQ_START_TOKEN) { |
| seq_printf(seq, "%s\n", bond_version); |
| bond_info_show_master(seq); |
| } else |
| bond_info_show_slave(seq, v); |
| |
| return 0; |
| } |
| |
| static const struct seq_operations bond_info_seq_ops = { |
| .start = bond_info_seq_start, |
| .next = bond_info_seq_next, |
| .stop = bond_info_seq_stop, |
| .show = bond_info_seq_show, |
| }; |
| |
| void bond_create_proc_entry(struct bonding *bond) |
| { |
| struct net_device *bond_dev = bond->dev; |
| struct bond_net *bn = net_generic(dev_net(bond_dev), bond_net_id); |
| |
| if (bn->proc_dir) { |
| bond->proc_entry = proc_create_seq_data(bond_dev->name, 0444, |
| bn->proc_dir, &bond_info_seq_ops, bond); |
| if (bond->proc_entry == NULL) |
| netdev_warn(bond_dev, "Cannot create /proc/net/%s/%s\n", |
| DRV_NAME, bond_dev->name); |
| else |
| memcpy(bond->proc_file_name, bond_dev->name, IFNAMSIZ); |
| } |
| } |
| |
| void bond_remove_proc_entry(struct bonding *bond) |
| { |
| struct net_device *bond_dev = bond->dev; |
| struct bond_net *bn = net_generic(dev_net(bond_dev), bond_net_id); |
| |
| if (bn->proc_dir && bond->proc_entry) { |
| remove_proc_entry(bond->proc_file_name, bn->proc_dir); |
| memset(bond->proc_file_name, 0, IFNAMSIZ); |
| bond->proc_entry = NULL; |
| } |
| } |
| |
| /* Create the bonding directory under /proc/net, if doesn't exist yet. |
| * Caller must hold rtnl_lock. |
| */ |
| void __net_init bond_create_proc_dir(struct bond_net *bn) |
| { |
| if (!bn->proc_dir) { |
| bn->proc_dir = proc_mkdir(DRV_NAME, bn->net->proc_net); |
| if (!bn->proc_dir) |
| pr_warn("Warning: Cannot create /proc/net/%s\n", |
| DRV_NAME); |
| } |
| } |
| |
| /* Destroy the bonding directory under /proc/net, if empty. |
| * Caller must hold rtnl_lock. |
| */ |
| void __net_exit bond_destroy_proc_dir(struct bond_net *bn) |
| { |
| if (bn->proc_dir) { |
| remove_proc_entry(DRV_NAME, bn->net->proc_net); |
| bn->proc_dir = NULL; |
| } |
| } |