1 #include <linux/proc_fs.h>
2 #include <linux/export.h>
3 #include <net/net_namespace.h>
4 #include <net/netns/generic.h>
8 static void *bond_info_seq_start(struct seq_file *seq, loff_t *pos)
10 __acquires(&bond->lock)
12 struct bonding *bond = seq->private;
13 struct list_head *iter;
17 /* make sure the bond won't be taken away */
19 read_lock(&bond->lock);
22 return SEQ_START_TOKEN;
24 bond_for_each_slave(bond, slave, iter)
31 static void *bond_info_seq_next(struct seq_file *seq, void *v, loff_t *pos)
33 struct bonding *bond = seq->private;
34 struct list_head *iter;
39 if (v == SEQ_START_TOKEN)
40 return bond_first_slave(bond);
42 if (bond_is_last_slave(bond, v))
45 bond_for_each_slave(bond, slave, iter) {
55 static void bond_info_seq_stop(struct seq_file *seq, void *v)
56 __releases(&bond->lock)
59 struct bonding *bond = seq->private;
61 read_unlock(&bond->lock);
65 static void bond_info_show_master(struct seq_file *seq)
67 struct bonding *bond = seq->private;
71 read_lock(&bond->curr_slave_lock);
72 curr = bond->curr_active_slave;
73 read_unlock(&bond->curr_slave_lock);
75 seq_printf(seq, "Bonding Mode: %s",
76 bond_mode_name(bond->params.mode));
78 if (bond->params.mode == BOND_MODE_ACTIVEBACKUP &&
79 bond->params.fail_over_mac)
80 seq_printf(seq, " (fail_over_mac %s)",
81 fail_over_mac_tbl[bond->params.fail_over_mac].modename);
83 seq_printf(seq, "\n");
85 if (bond->params.mode == BOND_MODE_XOR ||
86 bond->params.mode == BOND_MODE_8023AD) {
87 seq_printf(seq, "Transmit Hash Policy: %s (%d)\n",
88 xmit_hashtype_tbl[bond->params.xmit_policy].modename,
89 bond->params.xmit_policy);
92 if (USES_PRIMARY(bond->params.mode)) {
93 seq_printf(seq, "Primary Slave: %s",
94 (bond->primary_slave) ?
95 bond->primary_slave->dev->name : "None");
96 if (bond->primary_slave)
97 seq_printf(seq, " (primary_reselect %s)",
98 pri_reselect_tbl[bond->params.primary_reselect].modename);
100 seq_printf(seq, "\nCurrently Active Slave: %s\n",
101 (curr) ? curr->dev->name : "None");
104 seq_printf(seq, "MII Status: %s\n", netif_carrier_ok(bond->dev) ?
106 seq_printf(seq, "MII Polling Interval (ms): %d\n", bond->params.miimon);
107 seq_printf(seq, "Up Delay (ms): %d\n",
108 bond->params.updelay * bond->params.miimon);
109 seq_printf(seq, "Down Delay (ms): %d\n",
110 bond->params.downdelay * bond->params.miimon);
113 /* ARP information */
114 if (bond->params.arp_interval > 0) {
116 seq_printf(seq, "ARP Polling Interval (ms): %d\n",
117 bond->params.arp_interval);
119 seq_printf(seq, "ARP IP target/s (n.n.n.n form):");
121 for (i = 0; (i < BOND_MAX_ARP_TARGETS); i++) {
122 if (!bond->params.arp_targets[i])
125 seq_printf(seq, ",");
126 seq_printf(seq, " %pI4", &bond->params.arp_targets[i]);
129 seq_printf(seq, "\n");
132 if (bond->params.mode == BOND_MODE_8023AD) {
133 struct ad_info ad_info;
135 seq_puts(seq, "\n802.3ad info\n");
136 seq_printf(seq, "LACP rate: %s\n",
137 (bond->params.lacp_fast) ? "fast" : "slow");
138 seq_printf(seq, "Min links: %d\n", bond->params.min_links);
139 seq_printf(seq, "Aggregator selection policy (ad_select): %s\n",
140 ad_select_tbl[bond->params.ad_select].modename);
142 if (__bond_3ad_get_active_agg_info(bond, &ad_info)) {
143 seq_printf(seq, "bond %s has no active aggregator\n",
146 seq_printf(seq, "Active Aggregator Info:\n");
148 seq_printf(seq, "\tAggregator ID: %d\n",
149 ad_info.aggregator_id);
150 seq_printf(seq, "\tNumber of ports: %d\n",
152 seq_printf(seq, "\tActor Key: %d\n",
154 seq_printf(seq, "\tPartner Key: %d\n",
155 ad_info.partner_key);
156 seq_printf(seq, "\tPartner Mac Address: %pM\n",
157 ad_info.partner_system);
162 static const char *bond_slave_link_status(s8 link)
164 static const char * const status[] = {
165 [BOND_LINK_UP] = "up",
166 [BOND_LINK_FAIL] = "going down",
167 [BOND_LINK_DOWN] = "down",
168 [BOND_LINK_BACK] = "going back",
174 static void bond_info_show_slave(struct seq_file *seq,
175 const struct slave *slave)
177 struct bonding *bond = seq->private;
179 seq_printf(seq, "\nSlave Interface: %s\n", slave->dev->name);
180 seq_printf(seq, "MII Status: %s\n", bond_slave_link_status(slave->link));
181 if (slave->speed == SPEED_UNKNOWN)
182 seq_printf(seq, "Speed: %s\n", "Unknown");
184 seq_printf(seq, "Speed: %d Mbps\n", slave->speed);
186 if (slave->duplex == DUPLEX_UNKNOWN)
187 seq_printf(seq, "Duplex: %s\n", "Unknown");
189 seq_printf(seq, "Duplex: %s\n", slave->duplex ? "full" : "half");
191 seq_printf(seq, "Link Failure Count: %u\n",
192 slave->link_failure_count);
194 seq_printf(seq, "Permanent HW addr: %pM\n", slave->perm_hwaddr);
196 if (bond->params.mode == BOND_MODE_8023AD) {
197 const struct aggregator *agg
198 = SLAVE_AD_INFO(slave).port.aggregator;
201 seq_printf(seq, "Aggregator ID: %d\n",
202 agg->aggregator_identifier);
204 seq_puts(seq, "Aggregator ID: N/A\n");
206 seq_printf(seq, "Slave queue ID: %d\n", slave->queue_id);
209 static int bond_info_seq_show(struct seq_file *seq, void *v)
211 if (v == SEQ_START_TOKEN) {
212 seq_printf(seq, "%s\n", bond_version);
213 bond_info_show_master(seq);
215 bond_info_show_slave(seq, v);
220 static const struct seq_operations bond_info_seq_ops = {
221 .start = bond_info_seq_start,
222 .next = bond_info_seq_next,
223 .stop = bond_info_seq_stop,
224 .show = bond_info_seq_show,
227 static int bond_info_open(struct inode *inode, struct file *file)
229 struct seq_file *seq;
232 res = seq_open(file, &bond_info_seq_ops);
234 /* recover the pointer buried in proc_dir_entry data */
235 seq = file->private_data;
236 seq->private = PDE_DATA(inode);
242 static const struct file_operations bond_info_fops = {
243 .owner = THIS_MODULE,
244 .open = bond_info_open,
247 .release = seq_release,
250 void bond_create_proc_entry(struct bonding *bond)
252 struct net_device *bond_dev = bond->dev;
253 struct bond_net *bn = net_generic(dev_net(bond_dev), bond_net_id);
256 bond->proc_entry = proc_create_data(bond_dev->name,
257 S_IRUGO, bn->proc_dir,
258 &bond_info_fops, bond);
259 if (bond->proc_entry == NULL)
260 pr_warning("Warning: Cannot create /proc/net/%s/%s\n",
261 DRV_NAME, bond_dev->name);
263 memcpy(bond->proc_file_name, bond_dev->name, IFNAMSIZ);
267 void bond_remove_proc_entry(struct bonding *bond)
269 struct net_device *bond_dev = bond->dev;
270 struct bond_net *bn = net_generic(dev_net(bond_dev), bond_net_id);
272 if (bn->proc_dir && bond->proc_entry) {
273 remove_proc_entry(bond->proc_file_name, bn->proc_dir);
274 memset(bond->proc_file_name, 0, IFNAMSIZ);
275 bond->proc_entry = NULL;
279 /* Create the bonding directory under /proc/net, if doesn't exist yet.
280 * Caller must hold rtnl_lock.
282 void __net_init bond_create_proc_dir(struct bond_net *bn)
285 bn->proc_dir = proc_mkdir(DRV_NAME, bn->net->proc_net);
287 pr_warning("Warning: cannot create /proc/net/%s\n",
292 /* Destroy the bonding directory under /proc/net, if empty.
293 * Caller must hold rtnl_lock.
295 void __net_exit bond_destroy_proc_dir(struct bond_net *bn)
298 remove_proc_entry(DRV_NAME, bn->net->proc_net);