Loading...
1// SPDX-License-Identifier: GPL-2.0
2#include <linux/proc_fs.h>
3#include <linux/export.h>
4#include <net/net_namespace.h>
5#include <net/netns/generic.h>
6#include <net/bonding.h>
7
8#include "bonding_priv.h"
9
10static void *bond_info_seq_start(struct seq_file *seq, loff_t *pos)
11 __acquires(RCU)
12{
13 struct bonding *bond = seq->private;
14 struct list_head *iter;
15 struct slave *slave;
16 loff_t off = 0;
17
18 rcu_read_lock();
19
20 if (*pos == 0)
21 return SEQ_START_TOKEN;
22
23 bond_for_each_slave_rcu(bond, slave, iter)
24 if (++off == *pos)
25 return slave;
26
27 return NULL;
28}
29
30static void *bond_info_seq_next(struct seq_file *seq, void *v, loff_t *pos)
31{
32 struct bonding *bond = seq->private;
33 struct list_head *iter;
34 struct slave *slave;
35 bool found = false;
36
37 ++*pos;
38 if (v == SEQ_START_TOKEN)
39 return bond_first_slave_rcu(bond);
40
41 bond_for_each_slave_rcu(bond, slave, iter) {
42 if (found)
43 return slave;
44 if (slave == v)
45 found = true;
46 }
47
48 return NULL;
49}
50
51static void bond_info_seq_stop(struct seq_file *seq, void *v)
52 __releases(RCU)
53{
54 rcu_read_unlock();
55}
56
57static void bond_info_show_master(struct seq_file *seq)
58{
59 struct bonding *bond = seq->private;
60 const struct bond_opt_value *optval;
61 struct slave *curr, *primary;
62 int i;
63
64 curr = rcu_dereference(bond->curr_active_slave);
65
66 seq_printf(seq, "Bonding Mode: %s",
67 bond_mode_name(BOND_MODE(bond)));
68
69 if (BOND_MODE(bond) == BOND_MODE_ACTIVEBACKUP &&
70 bond->params.fail_over_mac) {
71 optval = bond_opt_get_val(BOND_OPT_FAIL_OVER_MAC,
72 bond->params.fail_over_mac);
73 seq_printf(seq, " (fail_over_mac %s)", optval->string);
74 }
75
76 seq_printf(seq, "\n");
77
78 if (bond_mode_uses_xmit_hash(bond)) {
79 optval = bond_opt_get_val(BOND_OPT_XMIT_HASH,
80 bond->params.xmit_policy);
81 seq_printf(seq, "Transmit Hash Policy: %s (%d)\n",
82 optval->string, bond->params.xmit_policy);
83 }
84
85 if (bond_uses_primary(bond)) {
86 primary = rcu_dereference(bond->primary_slave);
87 seq_printf(seq, "Primary Slave: %s",
88 primary ? primary->dev->name : "None");
89 if (primary) {
90 optval = bond_opt_get_val(BOND_OPT_PRIMARY_RESELECT,
91 bond->params.primary_reselect);
92 seq_printf(seq, " (primary_reselect %s)",
93 optval->string);
94 }
95
96 seq_printf(seq, "\nCurrently Active Slave: %s\n",
97 (curr) ? curr->dev->name : "None");
98 }
99
100 seq_printf(seq, "MII Status: %s\n", netif_carrier_ok(bond->dev) ?
101 "up" : "down");
102 seq_printf(seq, "MII Polling Interval (ms): %d\n", bond->params.miimon);
103 seq_printf(seq, "Up Delay (ms): %d\n",
104 bond->params.updelay * bond->params.miimon);
105 seq_printf(seq, "Down Delay (ms): %d\n",
106 bond->params.downdelay * bond->params.miimon);
107
108
109 /* ARP information */
110 if (bond->params.arp_interval > 0) {
111 int printed = 0;
112 seq_printf(seq, "ARP Polling Interval (ms): %d\n",
113 bond->params.arp_interval);
114
115 seq_printf(seq, "ARP IP target/s (n.n.n.n form):");
116
117 for (i = 0; (i < BOND_MAX_ARP_TARGETS); i++) {
118 if (!bond->params.arp_targets[i])
119 break;
120 if (printed)
121 seq_printf(seq, ",");
122 seq_printf(seq, " %pI4", &bond->params.arp_targets[i]);
123 printed = 1;
124 }
125 seq_printf(seq, "\n");
126 }
127
128 if (BOND_MODE(bond) == BOND_MODE_8023AD) {
129 struct ad_info ad_info;
130
131 seq_puts(seq, "\n802.3ad info\n");
132 seq_printf(seq, "LACP rate: %s\n",
133 (bond->params.lacp_fast) ? "fast" : "slow");
134 seq_printf(seq, "Min links: %d\n", bond->params.min_links);
135 optval = bond_opt_get_val(BOND_OPT_AD_SELECT,
136 bond->params.ad_select);
137 seq_printf(seq, "Aggregator selection policy (ad_select): %s\n",
138 optval->string);
139 if (capable(CAP_NET_ADMIN)) {
140 seq_printf(seq, "System priority: %d\n",
141 BOND_AD_INFO(bond).system.sys_priority);
142 seq_printf(seq, "System MAC address: %pM\n",
143 &BOND_AD_INFO(bond).system.sys_mac_addr);
144
145 if (__bond_3ad_get_active_agg_info(bond, &ad_info)) {
146 seq_printf(seq,
147 "bond %s has no active aggregator\n",
148 bond->dev->name);
149 } else {
150 seq_printf(seq, "Active Aggregator Info:\n");
151
152 seq_printf(seq, "\tAggregator ID: %d\n",
153 ad_info.aggregator_id);
154 seq_printf(seq, "\tNumber of ports: %d\n",
155 ad_info.ports);
156 seq_printf(seq, "\tActor Key: %d\n",
157 ad_info.actor_key);
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);
162 }
163 }
164 }
165}
166
167static void bond_info_show_slave(struct seq_file *seq,
168 const struct slave *slave)
169{
170 struct bonding *bond = seq->private;
171
172 seq_printf(seq, "\nSlave Interface: %s\n", slave->dev->name);
173 seq_printf(seq, "MII Status: %s\n", bond_slave_link_status(slave->link));
174 if (slave->speed == SPEED_UNKNOWN)
175 seq_printf(seq, "Speed: %s\n", "Unknown");
176 else
177 seq_printf(seq, "Speed: %d Mbps\n", slave->speed);
178
179 if (slave->duplex == DUPLEX_UNKNOWN)
180 seq_printf(seq, "Duplex: %s\n", "Unknown");
181 else
182 seq_printf(seq, "Duplex: %s\n", slave->duplex ? "full" : "half");
183
184 seq_printf(seq, "Link Failure Count: %u\n",
185 slave->link_failure_count);
186
187 seq_printf(seq, "Permanent HW addr: %*phC\n",
188 slave->dev->addr_len, slave->perm_hwaddr);
189 seq_printf(seq, "Slave queue ID: %d\n", slave->queue_id);
190
191 if (BOND_MODE(bond) == BOND_MODE_8023AD) {
192 const struct port *port = &SLAVE_AD_INFO(slave)->port;
193 const struct aggregator *agg = port->aggregator;
194
195 if (agg) {
196 seq_printf(seq, "Aggregator ID: %d\n",
197 agg->aggregator_identifier);
198 seq_printf(seq, "Actor Churn State: %s\n",
199 bond_3ad_churn_desc(port->sm_churn_actor_state));
200 seq_printf(seq, "Partner Churn State: %s\n",
201 bond_3ad_churn_desc(port->sm_churn_partner_state));
202 seq_printf(seq, "Actor Churned Count: %d\n",
203 port->churn_actor_count);
204 seq_printf(seq, "Partner Churned Count: %d\n",
205 port->churn_partner_count);
206
207 if (capable(CAP_NET_ADMIN)) {
208 seq_puts(seq, "details actor lacp pdu:\n");
209 seq_printf(seq, " system priority: %d\n",
210 port->actor_system_priority);
211 seq_printf(seq, " system mac address: %pM\n",
212 &port->actor_system);
213 seq_printf(seq, " port key: %d\n",
214 port->actor_oper_port_key);
215 seq_printf(seq, " port priority: %d\n",
216 port->actor_port_priority);
217 seq_printf(seq, " port number: %d\n",
218 port->actor_port_number);
219 seq_printf(seq, " port state: %d\n",
220 port->actor_oper_port_state);
221
222 seq_puts(seq, "details partner lacp pdu:\n");
223 seq_printf(seq, " system priority: %d\n",
224 port->partner_oper.system_priority);
225 seq_printf(seq, " system mac address: %pM\n",
226 &port->partner_oper.system);
227 seq_printf(seq, " oper key: %d\n",
228 port->partner_oper.key);
229 seq_printf(seq, " port priority: %d\n",
230 port->partner_oper.port_priority);
231 seq_printf(seq, " port number: %d\n",
232 port->partner_oper.port_number);
233 seq_printf(seq, " port state: %d\n",
234 port->partner_oper.port_state);
235 }
236 } else {
237 seq_puts(seq, "Aggregator ID: N/A\n");
238 }
239 }
240}
241
242static int bond_info_seq_show(struct seq_file *seq, void *v)
243{
244 if (v == SEQ_START_TOKEN) {
245 seq_printf(seq, "%s\n", bond_version);
246 bond_info_show_master(seq);
247 } else
248 bond_info_show_slave(seq, v);
249
250 return 0;
251}
252
253static const struct seq_operations bond_info_seq_ops = {
254 .start = bond_info_seq_start,
255 .next = bond_info_seq_next,
256 .stop = bond_info_seq_stop,
257 .show = bond_info_seq_show,
258};
259
260static int bond_info_open(struct inode *inode, struct file *file)
261{
262 struct seq_file *seq;
263 int res;
264
265 res = seq_open(file, &bond_info_seq_ops);
266 if (!res) {
267 /* recover the pointer buried in proc_dir_entry data */
268 seq = file->private_data;
269 seq->private = PDE_DATA(inode);
270 }
271
272 return res;
273}
274
275static const struct file_operations bond_info_fops = {
276 .owner = THIS_MODULE,
277 .open = bond_info_open,
278 .read = seq_read,
279 .llseek = seq_lseek,
280 .release = seq_release,
281};
282
283void bond_create_proc_entry(struct bonding *bond)
284{
285 struct net_device *bond_dev = bond->dev;
286 struct bond_net *bn = net_generic(dev_net(bond_dev), bond_net_id);
287
288 if (bn->proc_dir) {
289 bond->proc_entry = proc_create_data(bond_dev->name,
290 0444, bn->proc_dir,
291 &bond_info_fops, bond);
292 if (bond->proc_entry == NULL)
293 netdev_warn(bond_dev, "Cannot create /proc/net/%s/%s\n",
294 DRV_NAME, bond_dev->name);
295 else
296 memcpy(bond->proc_file_name, bond_dev->name, IFNAMSIZ);
297 }
298}
299
300void bond_remove_proc_entry(struct bonding *bond)
301{
302 struct net_device *bond_dev = bond->dev;
303 struct bond_net *bn = net_generic(dev_net(bond_dev), bond_net_id);
304
305 if (bn->proc_dir && bond->proc_entry) {
306 remove_proc_entry(bond->proc_file_name, bn->proc_dir);
307 memset(bond->proc_file_name, 0, IFNAMSIZ);
308 bond->proc_entry = NULL;
309 }
310}
311
312/* Create the bonding directory under /proc/net, if doesn't exist yet.
313 * Caller must hold rtnl_lock.
314 */
315void __net_init bond_create_proc_dir(struct bond_net *bn)
316{
317 if (!bn->proc_dir) {
318 bn->proc_dir = proc_mkdir(DRV_NAME, bn->net->proc_net);
319 if (!bn->proc_dir)
320 pr_warn("Warning: Cannot create /proc/net/%s\n",
321 DRV_NAME);
322 }
323}
324
325/* Destroy the bonding directory under /proc/net, if empty.
326 * Caller must hold rtnl_lock.
327 */
328void __net_exit bond_destroy_proc_dir(struct bond_net *bn)
329{
330 if (bn->proc_dir) {
331 remove_proc_entry(DRV_NAME, bn->net->proc_net);
332 bn->proc_dir = NULL;
333 }
334}
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 "bonding.h"
6
7
8static void *bond_info_seq_start(struct seq_file *seq, loff_t *pos)
9 __acquires(RCU)
10 __acquires(&bond->lock)
11{
12 struct bonding *bond = seq->private;
13 loff_t off = 0;
14 struct slave *slave;
15 int i;
16
17 /* make sure the bond won't be taken away */
18 rcu_read_lock();
19 read_lock(&bond->lock);
20
21 if (*pos == 0)
22 return SEQ_START_TOKEN;
23
24 bond_for_each_slave(bond, slave, i) {
25 if (++off == *pos)
26 return slave;
27 }
28
29 return NULL;
30}
31
32static void *bond_info_seq_next(struct seq_file *seq, void *v, loff_t *pos)
33{
34 struct bonding *bond = seq->private;
35 struct slave *slave = v;
36
37 ++*pos;
38 if (v == SEQ_START_TOKEN)
39 return bond->first_slave;
40
41 slave = slave->next;
42
43 return (slave == bond->first_slave) ? NULL : slave;
44}
45
46static void bond_info_seq_stop(struct seq_file *seq, void *v)
47 __releases(&bond->lock)
48 __releases(RCU)
49{
50 struct bonding *bond = seq->private;
51
52 read_unlock(&bond->lock);
53 rcu_read_unlock();
54}
55
56static void bond_info_show_master(struct seq_file *seq)
57{
58 struct bonding *bond = seq->private;
59 struct slave *curr;
60 int i;
61
62 read_lock(&bond->curr_slave_lock);
63 curr = bond->curr_active_slave;
64 read_unlock(&bond->curr_slave_lock);
65
66 seq_printf(seq, "Bonding Mode: %s",
67 bond_mode_name(bond->params.mode));
68
69 if (bond->params.mode == BOND_MODE_ACTIVEBACKUP &&
70 bond->params.fail_over_mac)
71 seq_printf(seq, " (fail_over_mac %s)",
72 fail_over_mac_tbl[bond->params.fail_over_mac].modename);
73
74 seq_printf(seq, "\n");
75
76 if (bond->params.mode == BOND_MODE_XOR ||
77 bond->params.mode == BOND_MODE_8023AD) {
78 seq_printf(seq, "Transmit Hash Policy: %s (%d)\n",
79 xmit_hashtype_tbl[bond->params.xmit_policy].modename,
80 bond->params.xmit_policy);
81 }
82
83 if (USES_PRIMARY(bond->params.mode)) {
84 seq_printf(seq, "Primary Slave: %s",
85 (bond->primary_slave) ?
86 bond->primary_slave->dev->name : "None");
87 if (bond->primary_slave)
88 seq_printf(seq, " (primary_reselect %s)",
89 pri_reselect_tbl[bond->params.primary_reselect].modename);
90
91 seq_printf(seq, "\nCurrently Active Slave: %s\n",
92 (curr) ? curr->dev->name : "None");
93 }
94
95 seq_printf(seq, "MII Status: %s\n", netif_carrier_ok(bond->dev) ?
96 "up" : "down");
97 seq_printf(seq, "MII Polling Interval (ms): %d\n", bond->params.miimon);
98 seq_printf(seq, "Up Delay (ms): %d\n",
99 bond->params.updelay * bond->params.miimon);
100 seq_printf(seq, "Down Delay (ms): %d\n",
101 bond->params.downdelay * bond->params.miimon);
102
103
104 /* ARP information */
105 if (bond->params.arp_interval > 0) {
106 int printed = 0;
107 seq_printf(seq, "ARP Polling Interval (ms): %d\n",
108 bond->params.arp_interval);
109
110 seq_printf(seq, "ARP IP target/s (n.n.n.n form):");
111
112 for (i = 0; (i < BOND_MAX_ARP_TARGETS); i++) {
113 if (!bond->params.arp_targets[i])
114 break;
115 if (printed)
116 seq_printf(seq, ",");
117 seq_printf(seq, " %pI4", &bond->params.arp_targets[i]);
118 printed = 1;
119 }
120 seq_printf(seq, "\n");
121 }
122
123 if (bond->params.mode == BOND_MODE_8023AD) {
124 struct ad_info ad_info;
125
126 seq_puts(seq, "\n802.3ad info\n");
127 seq_printf(seq, "LACP rate: %s\n",
128 (bond->params.lacp_fast) ? "fast" : "slow");
129 seq_printf(seq, "Min links: %d\n", bond->params.min_links);
130 seq_printf(seq, "Aggregator selection policy (ad_select): %s\n",
131 ad_select_tbl[bond->params.ad_select].modename);
132
133 if (bond_3ad_get_active_agg_info(bond, &ad_info)) {
134 seq_printf(seq, "bond %s has no active aggregator\n",
135 bond->dev->name);
136 } else {
137 seq_printf(seq, "Active Aggregator Info:\n");
138
139 seq_printf(seq, "\tAggregator ID: %d\n",
140 ad_info.aggregator_id);
141 seq_printf(seq, "\tNumber of ports: %d\n",
142 ad_info.ports);
143 seq_printf(seq, "\tActor Key: %d\n",
144 ad_info.actor_key);
145 seq_printf(seq, "\tPartner Key: %d\n",
146 ad_info.partner_key);
147 seq_printf(seq, "\tPartner Mac Address: %pM\n",
148 ad_info.partner_system);
149 }
150 }
151}
152
153static const char *bond_slave_link_status(s8 link)
154{
155 static const char * const status[] = {
156 [BOND_LINK_UP] = "up",
157 [BOND_LINK_FAIL] = "going down",
158 [BOND_LINK_DOWN] = "down",
159 [BOND_LINK_BACK] = "going back",
160 };
161
162 return status[link];
163}
164
165static void bond_info_show_slave(struct seq_file *seq,
166 const struct slave *slave)
167{
168 struct bonding *bond = seq->private;
169
170 seq_printf(seq, "\nSlave Interface: %s\n", slave->dev->name);
171 seq_printf(seq, "MII Status: %s\n", bond_slave_link_status(slave->link));
172 if (slave->speed == SPEED_UNKNOWN)
173 seq_printf(seq, "Speed: %s\n", "Unknown");
174 else
175 seq_printf(seq, "Speed: %d Mbps\n", slave->speed);
176
177 if (slave->duplex == DUPLEX_UNKNOWN)
178 seq_printf(seq, "Duplex: %s\n", "Unknown");
179 else
180 seq_printf(seq, "Duplex: %s\n", slave->duplex ? "full" : "half");
181
182 seq_printf(seq, "Link Failure Count: %u\n",
183 slave->link_failure_count);
184
185 seq_printf(seq, "Permanent HW addr: %pM\n", slave->perm_hwaddr);
186
187 if (bond->params.mode == BOND_MODE_8023AD) {
188 const struct aggregator *agg
189 = SLAVE_AD_INFO(slave).port.aggregator;
190
191 if (agg)
192 seq_printf(seq, "Aggregator ID: %d\n",
193 agg->aggregator_identifier);
194 else
195 seq_puts(seq, "Aggregator ID: N/A\n");
196 }
197 seq_printf(seq, "Slave queue ID: %d\n", slave->queue_id);
198}
199
200static int bond_info_seq_show(struct seq_file *seq, void *v)
201{
202 if (v == SEQ_START_TOKEN) {
203 seq_printf(seq, "%s\n", bond_version);
204 bond_info_show_master(seq);
205 } else
206 bond_info_show_slave(seq, v);
207
208 return 0;
209}
210
211static const struct seq_operations bond_info_seq_ops = {
212 .start = bond_info_seq_start,
213 .next = bond_info_seq_next,
214 .stop = bond_info_seq_stop,
215 .show = bond_info_seq_show,
216};
217
218static int bond_info_open(struct inode *inode, struct file *file)
219{
220 struct seq_file *seq;
221 struct proc_dir_entry *proc;
222 int res;
223
224 res = seq_open(file, &bond_info_seq_ops);
225 if (!res) {
226 /* recover the pointer buried in proc_dir_entry data */
227 seq = file->private_data;
228 proc = PDE(inode);
229 seq->private = proc->data;
230 }
231
232 return res;
233}
234
235static const struct file_operations bond_info_fops = {
236 .owner = THIS_MODULE,
237 .open = bond_info_open,
238 .read = seq_read,
239 .llseek = seq_lseek,
240 .release = seq_release,
241};
242
243void bond_create_proc_entry(struct bonding *bond)
244{
245 struct net_device *bond_dev = bond->dev;
246 struct bond_net *bn = net_generic(dev_net(bond_dev), bond_net_id);
247
248 if (bn->proc_dir) {
249 bond->proc_entry = proc_create_data(bond_dev->name,
250 S_IRUGO, bn->proc_dir,
251 &bond_info_fops, bond);
252 if (bond->proc_entry == NULL)
253 pr_warning("Warning: Cannot create /proc/net/%s/%s\n",
254 DRV_NAME, bond_dev->name);
255 else
256 memcpy(bond->proc_file_name, bond_dev->name, IFNAMSIZ);
257 }
258}
259
260void bond_remove_proc_entry(struct bonding *bond)
261{
262 struct net_device *bond_dev = bond->dev;
263 struct bond_net *bn = net_generic(dev_net(bond_dev), bond_net_id);
264
265 if (bn->proc_dir && bond->proc_entry) {
266 remove_proc_entry(bond->proc_file_name, bn->proc_dir);
267 memset(bond->proc_file_name, 0, IFNAMSIZ);
268 bond->proc_entry = NULL;
269 }
270}
271
272/* Create the bonding directory under /proc/net, if doesn't exist yet.
273 * Caller must hold rtnl_lock.
274 */
275void __net_init bond_create_proc_dir(struct bond_net *bn)
276{
277 if (!bn->proc_dir) {
278 bn->proc_dir = proc_mkdir(DRV_NAME, bn->net->proc_net);
279 if (!bn->proc_dir)
280 pr_warning("Warning: cannot create /proc/net/%s\n",
281 DRV_NAME);
282 }
283}
284
285/* Destroy the bonding directory under /proc/net, if empty.
286 * Caller must hold rtnl_lock.
287 */
288void __net_exit bond_destroy_proc_dir(struct bond_net *bn)
289{
290 if (bn->proc_dir) {
291 remove_proc_entry(DRV_NAME, bn->net->proc_net);
292 bn->proc_dir = NULL;
293 }
294}