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>
6
7#include "bonding_priv.h"
8
9static void *bond_info_seq_start(struct seq_file *seq, loff_t *pos)
10 __acquires(RCU)
11{
12 struct bonding *bond = seq->private;
13 struct list_head *iter;
14 struct slave *slave;
15 loff_t off = 0;
16
17 rcu_read_lock();
18
19 if (*pos == 0)
20 return SEQ_START_TOKEN;
21
22 bond_for_each_slave_rcu(bond, slave, iter)
23 if (++off == *pos)
24 return slave;
25
26 return NULL;
27}
28
29static void *bond_info_seq_next(struct seq_file *seq, void *v, loff_t *pos)
30{
31 struct bonding *bond = seq->private;
32 struct list_head *iter;
33 struct slave *slave;
34 bool found = false;
35
36 ++*pos;
37 if (v == SEQ_START_TOKEN)
38 return bond_first_slave_rcu(bond);
39
40 bond_for_each_slave_rcu(bond, slave, iter) {
41 if (found)
42 return slave;
43 if (slave == v)
44 found = true;
45 }
46
47 return NULL;
48}
49
50static void bond_info_seq_stop(struct seq_file *seq, void *v)
51 __releases(RCU)
52{
53 rcu_read_unlock();
54}
55
56static void bond_info_show_master(struct seq_file *seq)
57{
58 struct bonding *bond = seq->private;
59 const struct bond_opt_value *optval;
60 struct slave *curr, *primary;
61 int i;
62
63 curr = rcu_dereference(bond->curr_active_slave);
64
65 seq_printf(seq, "Bonding Mode: %s",
66 bond_mode_name(BOND_MODE(bond)));
67
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);
73 }
74
75 seq_printf(seq, "\n");
76
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);
82 }
83
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");
88 if (primary) {
89 optval = bond_opt_get_val(BOND_OPT_PRIMARY_RESELECT,
90 bond->params.primary_reselect);
91 seq_printf(seq, " (primary_reselect %s)",
92 optval->string);
93 }
94
95 seq_printf(seq, "\nCurrently Active Slave: %s\n",
96 (curr) ? curr->dev->name : "None");
97 }
98
99 seq_printf(seq, "MII Status: %s\n", netif_carrier_ok(bond->dev) ?
100 "up" : "down");
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);
106
107
108
109 if (bond->params.arp_interval > 0) {
110 int printed = 0;
111 seq_printf(seq, "ARP Polling Interval (ms): %d\n",
112 bond->params.arp_interval);
113
114 seq_printf(seq, "ARP IP target/s (n.n.n.n form):");
115
116 for (i = 0; (i < BOND_MAX_ARP_TARGETS); i++) {
117 if (!bond->params.arp_targets[i])
118 break;
119 if (printed)
120 seq_printf(seq, ",");
121 seq_printf(seq, " %pI4", &bond->params.arp_targets[i]);
122 printed = 1;
123 }
124 seq_printf(seq, "\n");
125 }
126
127 if (BOND_MODE(bond) == BOND_MODE_8023AD) {
128 struct ad_info ad_info;
129
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",
137 optval->string);
138 if (capable(CAP_NET_ADMIN)) {
139 seq_printf(seq, "System priority: %d\n",
140 BOND_AD_INFO(bond).system.sys_priority);
141 seq_printf(seq, "System MAC address: %pM\n",
142 &BOND_AD_INFO(bond).system.sys_mac_addr);
143
144 if (__bond_3ad_get_active_agg_info(bond, &ad_info)) {
145 seq_printf(seq,
146 "bond %s has no active aggregator\n",
147 bond->dev->name);
148 } else {
149 seq_printf(seq, "Active Aggregator Info:\n");
150
151 seq_printf(seq, "\tAggregator ID: %d\n",
152 ad_info.aggregator_id);
153 seq_printf(seq, "\tNumber of ports: %d\n",
154 ad_info.ports);
155 seq_printf(seq, "\tActor Key: %d\n",
156 ad_info.actor_key);
157 seq_printf(seq, "\tPartner Key: %d\n",
158 ad_info.partner_key);
159 seq_printf(seq, "\tPartner Mac Address: %pM\n",
160 ad_info.partner_system);
161 }
162 }
163 }
164}
165
166static void bond_info_show_slave(struct seq_file *seq,
167 const struct slave *slave)
168{
169 struct bonding *bond = seq->private;
170
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");
175 else
176 seq_printf(seq, "Speed: %d Mbps\n", slave->speed);
177
178 if (slave->duplex == DUPLEX_UNKNOWN)
179 seq_printf(seq, "Duplex: %s\n", "Unknown");
180 else
181 seq_printf(seq, "Duplex: %s\n", slave->duplex ? "full" : "half");
182
183 seq_printf(seq, "Link Failure Count: %u\n",
184 slave->link_failure_count);
185
186 seq_printf(seq, "Permanent HW addr: %*phC\n",
187 slave->dev->addr_len, slave->perm_hwaddr);
188 seq_printf(seq, "Slave queue ID: %d\n", slave->queue_id);
189
190 if (BOND_MODE(bond) == BOND_MODE_8023AD) {
191 const struct port *port = &SLAVE_AD_INFO(slave)->port;
192 const struct aggregator *agg = port->aggregator;
193
194 if (agg) {
195 seq_printf(seq, "Aggregator ID: %d\n",
196 agg->aggregator_identifier);
197 seq_printf(seq, "Actor Churn State: %s\n",
198 bond_3ad_churn_desc(port->sm_churn_actor_state));
199 seq_printf(seq, "Partner Churn State: %s\n",
200 bond_3ad_churn_desc(port->sm_churn_partner_state));
201 seq_printf(seq, "Actor Churned Count: %d\n",
202 port->churn_actor_count);
203 seq_printf(seq, "Partner Churned Count: %d\n",
204 port->churn_partner_count);
205
206 if (capable(CAP_NET_ADMIN)) {
207 seq_puts(seq, "details actor lacp pdu:\n");
208 seq_printf(seq, " system priority: %d\n",
209 port->actor_system_priority);
210 seq_printf(seq, " system mac address: %pM\n",
211 &port->actor_system);
212 seq_printf(seq, " port key: %d\n",
213 port->actor_oper_port_key);
214 seq_printf(seq, " port priority: %d\n",
215 port->actor_port_priority);
216 seq_printf(seq, " port number: %d\n",
217 port->actor_port_number);
218 seq_printf(seq, " port state: %d\n",
219 port->actor_oper_port_state);
220
221 seq_puts(seq, "details partner lacp pdu:\n");
222 seq_printf(seq, " system priority: %d\n",
223 port->partner_oper.system_priority);
224 seq_printf(seq, " system mac address: %pM\n",
225 &port->partner_oper.system);
226 seq_printf(seq, " oper key: %d\n",
227 port->partner_oper.key);
228 seq_printf(seq, " port priority: %d\n",
229 port->partner_oper.port_priority);
230 seq_printf(seq, " port number: %d\n",
231 port->partner_oper.port_number);
232 seq_printf(seq, " port state: %d\n",
233 port->partner_oper.port_state);
234 }
235 } else {
236 seq_puts(seq, "Aggregator ID: N/A\n");
237 }
238 }
239}
240
241static int bond_info_seq_show(struct seq_file *seq, void *v)
242{
243 if (v == SEQ_START_TOKEN) {
244 seq_printf(seq, "%s\n", bond_version);
245 bond_info_show_master(seq);
246 } else
247 bond_info_show_slave(seq, v);
248
249 return 0;
250}
251
252static const struct seq_operations bond_info_seq_ops = {
253 .start = bond_info_seq_start,
254 .next = bond_info_seq_next,
255 .stop = bond_info_seq_stop,
256 .show = bond_info_seq_show,
257};
258
259static int bond_info_open(struct inode *inode, struct file *file)
260{
261 struct seq_file *seq;
262 int res;
263
264 res = seq_open(file, &bond_info_seq_ops);
265 if (!res) {
266
267 seq = file->private_data;
268 seq->private = PDE_DATA(inode);
269 }
270
271 return res;
272}
273
274static const struct file_operations bond_info_fops = {
275 .owner = THIS_MODULE,
276 .open = bond_info_open,
277 .read = seq_read,
278 .llseek = seq_lseek,
279 .release = seq_release,
280};
281
282void bond_create_proc_entry(struct bonding *bond)
283{
284 struct net_device *bond_dev = bond->dev;
285 struct bond_net *bn = net_generic(dev_net(bond_dev), bond_net_id);
286
287 if (bn->proc_dir) {
288 bond->proc_entry = proc_create_data(bond_dev->name,
289 0444, bn->proc_dir,
290 &bond_info_fops, bond);
291 if (bond->proc_entry == NULL)
292 netdev_warn(bond_dev, "Cannot create /proc/net/%s/%s\n",
293 DRV_NAME, bond_dev->name);
294 else
295 memcpy(bond->proc_file_name, bond_dev->name, IFNAMSIZ);
296 }
297}
298
299void bond_remove_proc_entry(struct bonding *bond)
300{
301 struct net_device *bond_dev = bond->dev;
302 struct bond_net *bn = net_generic(dev_net(bond_dev), bond_net_id);
303
304 if (bn->proc_dir && bond->proc_entry) {
305 remove_proc_entry(bond->proc_file_name, bn->proc_dir);
306 memset(bond->proc_file_name, 0, IFNAMSIZ);
307 bond->proc_entry = NULL;
308 }
309}
310
311
312
313
314void __net_init bond_create_proc_dir(struct bond_net *bn)
315{
316 if (!bn->proc_dir) {
317 bn->proc_dir = proc_mkdir(DRV_NAME, bn->net->proc_net);
318 if (!bn->proc_dir)
319 pr_warn("Warning: Cannot create /proc/net/%s\n",
320 DRV_NAME);
321 }
322}
323
324
325
326
327void __net_exit bond_destroy_proc_dir(struct bond_net *bn)
328{
329 if (bn->proc_dir) {
330 remove_proc_entry(DRV_NAME, bn->net->proc_net);
331 bn->proc_dir = NULL;
332 }
333}
334
