1 #include <linux/proc_fs.h>
2 #include <linux/export.h>
3 #include <net/net_namespace.h>
4 #include <net/netns/generic.h>
5 #include <net/bonding.h>
7 #include "bonding_priv.h"
9 static void *bond_info_seq_start(struct seq_file *seq, loff_t *pos)
12 struct bonding *bond = seq->private;
13 struct list_head *iter;
20 return SEQ_START_TOKEN;
22 bond_for_each_slave_rcu(bond, slave, iter)
29 static void *bond_info_seq_next(struct seq_file *seq, void *v, loff_t *pos)
31 struct bonding *bond = seq->private;
32 struct list_head *iter;
37 if (v == SEQ_START_TOKEN)
38 return bond_first_slave_rcu(bond);
40 bond_for_each_slave_rcu(bond, slave, iter) {
50 static void bond_info_seq_stop(struct seq_file *seq, void *v)
56 static void bond_info_show_master(struct seq_file *seq)
58 struct bonding *bond = seq->private;
59 const struct bond_opt_value *optval;
60 struct slave *curr, *primary;
63 curr = rcu_dereference(bond->curr_active_slave);
65 seq_printf(seq, "Bonding Mode: %s",
66 bond_mode_name(BOND_MODE(bond)));
68 if (BOND_MODE(bond) == BOND_MODE_ACTIVEBACKUP &&
69 bond->params.fail_over_mac) {
70 optval = bond_opt_get_val(BOND_OPT_FAIL_OVER_MAC,
71 bond->params.fail_over_mac);
72 seq_printf(seq, " (fail_over_mac %s)", optval->string);
75 seq_printf(seq, "\n");
77 if (bond_mode_uses_xmit_hash(bond)) {
78 optval = bond_opt_get_val(BOND_OPT_XMIT_HASH,
79 bond->params.xmit_policy);
80 seq_printf(seq, "Transmit Hash Policy: %s (%d)\n",
81 optval->string, bond->params.xmit_policy);
84 if (bond_uses_primary(bond)) {
85 primary = rcu_dereference(bond->primary_slave);
86 seq_printf(seq, "Primary Slave: %s",
87 primary ? primary->dev->name : "None");
89 optval = bond_opt_get_val(BOND_OPT_PRIMARY_RESELECT,
90 bond->params.primary_reselect);
91 seq_printf(seq, " (primary_reselect %s)",
95 seq_printf(seq, "\nCurrently Active Slave: %s\n",
96 (curr) ? curr->dev->name : "None");
99 seq_printf(seq, "MII Status: %s\n", netif_carrier_ok(bond->dev) ?
101 seq_printf(seq, "MII Polling Interval (ms): %d\n", bond->params.miimon);
102 seq_printf(seq, "Up Delay (ms): %d\n",
103 bond->params.updelay * bond->params.miimon);
104 seq_printf(seq, "Down Delay (ms): %d\n",
105 bond->params.downdelay * bond->params.miimon);
108 /* ARP information */
109 if (bond->params.arp_interval > 0) {
111 seq_printf(seq, "ARP Polling Interval (ms): %d\n",
112 bond->params.arp_interval);
114 seq_printf(seq, "ARP IP target/s (n.n.n.n form):");
116 for (i = 0; (i < BOND_MAX_ARP_TARGETS); i++) {
117 if (!bond->params.arp_targets[i])
120 seq_printf(seq, ",");
121 seq_printf(seq, " %pI4", &bond->params.arp_targets[i]);
124 seq_printf(seq, "\n");
127 if (BOND_MODE(bond) == BOND_MODE_8023AD) {
128 struct ad_info ad_info;
130 seq_puts(seq, "\n802.3ad info\n");
131 seq_printf(seq, "LACP rate: %s\n",
132 (bond->params.lacp_fast) ? "fast" : "slow");
133 seq_printf(seq, "Min links: %d\n", bond->params.min_links);
134 optval = bond_opt_get_val(BOND_OPT_AD_SELECT,
135 bond->params.ad_select);
136 seq_printf(seq, "Aggregator selection policy (ad_select): %s\n",
139 if (__bond_3ad_get_active_agg_info(bond, &ad_info)) {
140 seq_printf(seq, "bond %s has no active aggregator\n",
143 seq_printf(seq, "Active Aggregator Info:\n");
145 seq_printf(seq, "\tAggregator ID: %d\n",
146 ad_info.aggregator_id);
147 seq_printf(seq, "\tNumber of ports: %d\n",
149 seq_printf(seq, "\tActor Key: %d\n",
151 seq_printf(seq, "\tPartner Key: %d\n",
152 ad_info.partner_key);
153 seq_printf(seq, "\tPartner Mac Address: %pM\n",
154 ad_info.partner_system);
159 static void bond_info_show_slave(struct seq_file *seq,
160 const struct slave *slave)
162 struct bonding *bond = seq->private;
164 seq_printf(seq, "\nSlave Interface: %s\n", slave->dev->name);
165 seq_printf(seq, "MII Status: %s\n", bond_slave_link_status(slave->link));
166 if (slave->speed == SPEED_UNKNOWN)
167 seq_printf(seq, "Speed: %s\n", "Unknown");
169 seq_printf(seq, "Speed: %d Mbps\n", slave->speed);
171 if (slave->duplex == DUPLEX_UNKNOWN)
172 seq_printf(seq, "Duplex: %s\n", "Unknown");
174 seq_printf(seq, "Duplex: %s\n", slave->duplex ? "full" : "half");
176 seq_printf(seq, "Link Failure Count: %u\n",
177 slave->link_failure_count);
179 seq_printf(seq, "Permanent HW addr: %pM\n", slave->perm_hwaddr);
180 seq_printf(seq, "Slave queue ID: %d\n", slave->queue_id);
182 if (BOND_MODE(bond) == BOND_MODE_8023AD) {
183 const struct port *port = &SLAVE_AD_INFO(slave)->port;
184 const struct aggregator *agg = port->aggregator;
187 seq_printf(seq, "Aggregator ID: %d\n",
188 agg->aggregator_identifier);
189 seq_printf(seq, "Actor Churn State: %s\n",
190 bond_3ad_churn_desc(port->sm_churn_actor_state));
191 seq_printf(seq, "Partner Churn State: %s\n",
192 bond_3ad_churn_desc(port->sm_churn_partner_state));
193 seq_printf(seq, "Actor Churned Count: %d\n",
194 port->churn_actor_count);
195 seq_printf(seq, "Partner Churned Count: %d\n",
196 port->churn_partner_count);
198 seq_puts(seq, "details actor lacp pdu:\n");
199 seq_printf(seq, " system priority: %d\n",
200 port->actor_system_priority);
201 seq_printf(seq, " port key: %d\n",
202 port->actor_oper_port_key);
203 seq_printf(seq, " port priority: %d\n",
204 port->actor_port_priority);
205 seq_printf(seq, " port number: %d\n",
206 port->actor_port_number);
207 seq_printf(seq, " port state: %d\n",
208 port->actor_oper_port_state);
210 seq_puts(seq, "details partner lacp pdu:\n");
211 seq_printf(seq, " system priority: %d\n",
212 port->partner_oper.system_priority);
213 seq_printf(seq, " oper key: %d\n",
214 port->partner_oper.key);
215 seq_printf(seq, " port priority: %d\n",
216 port->partner_oper.port_priority);
217 seq_printf(seq, " port number: %d\n",
218 port->partner_oper.port_number);
219 seq_printf(seq, " port state: %d\n",
220 port->partner_oper.port_state);
222 seq_puts(seq, "Aggregator ID: N/A\n");
227 static int bond_info_seq_show(struct seq_file *seq, void *v)
229 if (v == SEQ_START_TOKEN) {
230 seq_printf(seq, "%s\n", bond_version);
231 bond_info_show_master(seq);
233 bond_info_show_slave(seq, v);
238 static const struct seq_operations bond_info_seq_ops = {
239 .start = bond_info_seq_start,
240 .next = bond_info_seq_next,
241 .stop = bond_info_seq_stop,
242 .show = bond_info_seq_show,
245 static int bond_info_open(struct inode *inode, struct file *file)
247 struct seq_file *seq;
250 res = seq_open(file, &bond_info_seq_ops);
252 /* recover the pointer buried in proc_dir_entry data */
253 seq = file->private_data;
254 seq->private = PDE_DATA(inode);
260 static const struct file_operations bond_info_fops = {
261 .owner = THIS_MODULE,
262 .open = bond_info_open,
265 .release = seq_release,
268 void bond_create_proc_entry(struct bonding *bond)
270 struct net_device *bond_dev = bond->dev;
271 struct bond_net *bn = net_generic(dev_net(bond_dev), bond_net_id);
274 bond->proc_entry = proc_create_data(bond_dev->name,
275 S_IRUGO, bn->proc_dir,
276 &bond_info_fops, bond);
277 if (bond->proc_entry == NULL)
278 netdev_warn(bond_dev, "Cannot create /proc/net/%s/%s\n",
279 DRV_NAME, bond_dev->name);
281 memcpy(bond->proc_file_name, bond_dev->name, IFNAMSIZ);
285 void bond_remove_proc_entry(struct bonding *bond)
287 struct net_device *bond_dev = bond->dev;
288 struct bond_net *bn = net_generic(dev_net(bond_dev), bond_net_id);
290 if (bn->proc_dir && bond->proc_entry) {
291 remove_proc_entry(bond->proc_file_name, bn->proc_dir);
292 memset(bond->proc_file_name, 0, IFNAMSIZ);
293 bond->proc_entry = NULL;
297 /* Create the bonding directory under /proc/net, if doesn't exist yet.
298 * Caller must hold rtnl_lock.
300 void __net_init bond_create_proc_dir(struct bond_net *bn)
303 bn->proc_dir = proc_mkdir(DRV_NAME, bn->net->proc_net);
305 pr_warn("Warning: Cannot create /proc/net/%s\n",
310 /* Destroy the bonding directory under /proc/net, if empty.
311 * Caller must hold rtnl_lock.
313 void __net_exit bond_destroy_proc_dir(struct bond_net *bn)
316 remove_proc_entry(DRV_NAME, bn->net->proc_net);