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