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;
68 struct bond_opt_value *optval;
72 read_lock(&bond->curr_slave_lock);
73 curr = bond->curr_active_slave;
74 read_unlock(&bond->curr_slave_lock);
76 seq_printf(seq, "Bonding Mode: %s",
77 bond_mode_name(bond->params.mode));
79 if (bond->params.mode == BOND_MODE_ACTIVEBACKUP &&
80 bond->params.fail_over_mac) {
81 optval = bond_opt_get_val(BOND_OPT_FAIL_OVER_MAC,
82 bond->params.fail_over_mac);
83 seq_printf(seq, " (fail_over_mac %s)", optval->string);
86 seq_printf(seq, "\n");
88 if (bond->params.mode == BOND_MODE_XOR ||
89 bond->params.mode == BOND_MODE_8023AD) {
90 optval = bond_opt_get_val(BOND_OPT_XMIT_HASH,
91 bond->params.xmit_policy);
92 seq_printf(seq, "Transmit Hash Policy: %s (%d)\n",
93 optval->string, bond->params.xmit_policy);
96 if (USES_PRIMARY(bond->params.mode)) {
97 seq_printf(seq, "Primary Slave: %s",
98 (bond->primary_slave) ?
99 bond->primary_slave->dev->name : "None");
100 if (bond->primary_slave)
101 seq_printf(seq, " (primary_reselect %s)",
102 pri_reselect_tbl[bond->params.primary_reselect].modename);
104 seq_printf(seq, "\nCurrently Active Slave: %s\n",
105 (curr) ? curr->dev->name : "None");
108 seq_printf(seq, "MII Status: %s\n", netif_carrier_ok(bond->dev) ?
110 seq_printf(seq, "MII Polling Interval (ms): %d\n", bond->params.miimon);
111 seq_printf(seq, "Up Delay (ms): %d\n",
112 bond->params.updelay * bond->params.miimon);
113 seq_printf(seq, "Down Delay (ms): %d\n",
114 bond->params.downdelay * bond->params.miimon);
117 /* ARP information */
118 if (bond->params.arp_interval > 0) {
120 seq_printf(seq, "ARP Polling Interval (ms): %d\n",
121 bond->params.arp_interval);
123 seq_printf(seq, "ARP IP target/s (n.n.n.n form):");
125 for (i = 0; (i < BOND_MAX_ARP_TARGETS); i++) {
126 if (!bond->params.arp_targets[i])
129 seq_printf(seq, ",");
130 seq_printf(seq, " %pI4", &bond->params.arp_targets[i]);
133 seq_printf(seq, "\n");
136 if (bond->params.mode == BOND_MODE_8023AD) {
137 struct ad_info ad_info;
139 seq_puts(seq, "\n802.3ad info\n");
140 seq_printf(seq, "LACP rate: %s\n",
141 (bond->params.lacp_fast) ? "fast" : "slow");
142 seq_printf(seq, "Min links: %d\n", bond->params.min_links);
143 seq_printf(seq, "Aggregator selection policy (ad_select): %s\n",
144 ad_select_tbl[bond->params.ad_select].modename);
146 if (__bond_3ad_get_active_agg_info(bond, &ad_info)) {
147 seq_printf(seq, "bond %s has no active aggregator\n",
150 seq_printf(seq, "Active Aggregator Info:\n");
152 seq_printf(seq, "\tAggregator ID: %d\n",
153 ad_info.aggregator_id);
154 seq_printf(seq, "\tNumber of ports: %d\n",
156 seq_printf(seq, "\tActor Key: %d\n",
158 seq_printf(seq, "\tPartner Key: %d\n",
159 ad_info.partner_key);
160 seq_printf(seq, "\tPartner Mac Address: %pM\n",
161 ad_info.partner_system);
166 static void bond_info_show_slave(struct seq_file *seq,
167 const struct slave *slave)
169 struct bonding *bond = seq->private;
171 seq_printf(seq, "\nSlave Interface: %s\n", slave->dev->name);
172 seq_printf(seq, "MII Status: %s\n", bond_slave_link_status(slave->link));
173 if (slave->speed == SPEED_UNKNOWN)
174 seq_printf(seq, "Speed: %s\n", "Unknown");
176 seq_printf(seq, "Speed: %d Mbps\n", slave->speed);
178 if (slave->duplex == DUPLEX_UNKNOWN)
179 seq_printf(seq, "Duplex: %s\n", "Unknown");
181 seq_printf(seq, "Duplex: %s\n", slave->duplex ? "full" : "half");
183 seq_printf(seq, "Link Failure Count: %u\n",
184 slave->link_failure_count);
186 seq_printf(seq, "Permanent HW addr: %pM\n", slave->perm_hwaddr);
188 if (bond->params.mode == BOND_MODE_8023AD) {
189 const struct aggregator *agg
190 = SLAVE_AD_INFO(slave).port.aggregator;
193 seq_printf(seq, "Aggregator ID: %d\n",
194 agg->aggregator_identifier);
196 seq_puts(seq, "Aggregator ID: N/A\n");
198 seq_printf(seq, "Slave queue ID: %d\n", slave->queue_id);
201 static int bond_info_seq_show(struct seq_file *seq, void *v)
203 if (v == SEQ_START_TOKEN) {
204 seq_printf(seq, "%s\n", bond_version);
205 bond_info_show_master(seq);
207 bond_info_show_slave(seq, v);
212 static const struct seq_operations bond_info_seq_ops = {
213 .start = bond_info_seq_start,
214 .next = bond_info_seq_next,
215 .stop = bond_info_seq_stop,
216 .show = bond_info_seq_show,
219 static int bond_info_open(struct inode *inode, struct file *file)
221 struct seq_file *seq;
224 res = seq_open(file, &bond_info_seq_ops);
226 /* recover the pointer buried in proc_dir_entry data */
227 seq = file->private_data;
228 seq->private = PDE_DATA(inode);
234 static const struct file_operations bond_info_fops = {
235 .owner = THIS_MODULE,
236 .open = bond_info_open,
239 .release = seq_release,
242 void bond_create_proc_entry(struct bonding *bond)
244 struct net_device *bond_dev = bond->dev;
245 struct bond_net *bn = net_generic(dev_net(bond_dev), bond_net_id);
248 bond->proc_entry = proc_create_data(bond_dev->name,
249 S_IRUGO, bn->proc_dir,
250 &bond_info_fops, bond);
251 if (bond->proc_entry == NULL)
252 pr_warning("Warning: Cannot create /proc/net/%s/%s\n",
253 DRV_NAME, bond_dev->name);
255 memcpy(bond->proc_file_name, bond_dev->name, IFNAMSIZ);
259 void bond_remove_proc_entry(struct bonding *bond)
261 struct net_device *bond_dev = bond->dev;
262 struct bond_net *bn = net_generic(dev_net(bond_dev), bond_net_id);
264 if (bn->proc_dir && bond->proc_entry) {
265 remove_proc_entry(bond->proc_file_name, bn->proc_dir);
266 memset(bond->proc_file_name, 0, IFNAMSIZ);
267 bond->proc_entry = NULL;
271 /* Create the bonding directory under /proc/net, if doesn't exist yet.
272 * Caller must hold rtnl_lock.
274 void __net_init bond_create_proc_dir(struct bond_net *bn)
277 bn->proc_dir = proc_mkdir(DRV_NAME, bn->net->proc_net);
279 pr_warning("Warning: cannot create /proc/net/%s\n",
284 /* Destroy the bonding directory under /proc/net, if empty.
285 * Caller must hold rtnl_lock.
287 void __net_exit bond_destroy_proc_dir(struct bond_net *bn)
290 remove_proc_entry(DRV_NAME, bn->net->proc_net);