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 rate: %s\n",
137 (bond->params.lacp_fast) ? "fast" : "slow");
138 seq_printf(seq, "Min links: %d\n", bond->params.min_links);
139 optval = bond_opt_get_val(BOND_OPT_AD_SELECT,
140 bond->params.ad_select);
141 seq_printf(seq, "Aggregator selection policy (ad_select): %s\n",
142 optval->string);
143 if (capable(CAP_NET_ADMIN)) {
144 seq_printf(seq, "System priority: %d\n",
145 BOND_AD_INFO(bond).system.sys_priority);
146 seq_printf(seq, "System MAC address: %pM\n",
147 &BOND_AD_INFO(bond).system.sys_mac_addr);
148
149 if (__bond_3ad_get_active_agg_info(bond, &ad_info)) {
150 seq_printf(seq,
151 "bond %s has no active aggregator\n",
152 bond->dev->name);
153 } else {
154 seq_printf(seq, "Active Aggregator Info:\n");
155
156 seq_printf(seq, "\tAggregator ID: %d\n",
157 ad_info.aggregator_id);
158 seq_printf(seq, "\tNumber of ports: %d\n",
159 ad_info.ports);
160 seq_printf(seq, "\tActor Key: %d\n",
161 ad_info.actor_key);
162 seq_printf(seq, "\tPartner Key: %d\n",
163 ad_info.partner_key);
164 seq_printf(seq, "\tPartner Mac Address: %pM\n",
165 ad_info.partner_system);
166 }
167 }
168 }
169}
170
171static void bond_info_show_slave(struct seq_file *seq,
172 const struct slave *slave)
173{
174 struct bonding *bond = PDE_DATA(file_inode(seq->file));
175
176 seq_printf(seq, "\nSlave Interface: %s\n", slave->dev->name);
177 seq_printf(seq, "MII Status: %s\n", bond_slave_link_status(slave->link));
178 if (slave->speed == SPEED_UNKNOWN)
179 seq_printf(seq, "Speed: %s\n", "Unknown");
180 else
181 seq_printf(seq, "Speed: %d Mbps\n", slave->speed);
182
183 if (slave->duplex == DUPLEX_UNKNOWN)
184 seq_printf(seq, "Duplex: %s\n", "Unknown");
185 else
186 seq_printf(seq, "Duplex: %s\n", slave->duplex ? "full" : "half");
187
188 seq_printf(seq, "Link Failure Count: %u\n",
189 slave->link_failure_count);
190
191 seq_printf(seq, "Permanent HW addr: %*phC\n",
192 slave->dev->addr_len, slave->perm_hwaddr);
193 seq_printf(seq, "Slave queue ID: %d\n", slave->queue_id);
194
195 if (BOND_MODE(bond) == BOND_MODE_8023AD) {
196 const struct port *port = &SLAVE_AD_INFO(slave)->port;
197 const struct aggregator *agg = port->aggregator;
198
199 if (agg) {
200 seq_printf(seq, "Aggregator ID: %d\n",
201 agg->aggregator_identifier);
202 seq_printf(seq, "Actor Churn State: %s\n",
203 bond_3ad_churn_desc(port->sm_churn_actor_state));
204 seq_printf(seq, "Partner Churn State: %s\n",
205 bond_3ad_churn_desc(port->sm_churn_partner_state));
206 seq_printf(seq, "Actor Churned Count: %d\n",
207 port->churn_actor_count);
208 seq_printf(seq, "Partner Churned Count: %d\n",
209 port->churn_partner_count);
210
211 if (capable(CAP_NET_ADMIN)) {
212 seq_puts(seq, "details actor lacp pdu:\n");
213 seq_printf(seq, " system priority: %d\n",
214 port->actor_system_priority);
215 seq_printf(seq, " system mac address: %pM\n",
216 &port->actor_system);
217 seq_printf(seq, " port key: %d\n",
218 port->actor_oper_port_key);
219 seq_printf(seq, " port priority: %d\n",
220 port->actor_port_priority);
221 seq_printf(seq, " port number: %d\n",
222 port->actor_port_number);
223 seq_printf(seq, " port state: %d\n",
224 port->actor_oper_port_state);
225
226 seq_puts(seq, "details partner lacp pdu:\n");
227 seq_printf(seq, " system priority: %d\n",
228 port->partner_oper.system_priority);
229 seq_printf(seq, " system mac address: %pM\n",
230 &port->partner_oper.system);
231 seq_printf(seq, " oper key: %d\n",
232 port->partner_oper.key);
233 seq_printf(seq, " port priority: %d\n",
234 port->partner_oper.port_priority);
235 seq_printf(seq, " port number: %d\n",
236 port->partner_oper.port_number);
237 seq_printf(seq, " port state: %d\n",
238 port->partner_oper.port_state);
239 }
240 } else {
241 seq_puts(seq, "Aggregator ID: N/A\n");
242 }
243 }
244}
245
246static int bond_info_seq_show(struct seq_file *seq, void *v)
247{
248 if (v == SEQ_START_TOKEN) {
249 seq_printf(seq, "%s\n", bond_version);
250 bond_info_show_master(seq);
251 } else
252 bond_info_show_slave(seq, v);
253
254 return 0;
255}
256
257static const struct seq_operations bond_info_seq_ops = {
258 .start = bond_info_seq_start,
259 .next = bond_info_seq_next,
260 .stop = bond_info_seq_stop,
261 .show = bond_info_seq_show,
262};
263
264void bond_create_proc_entry(struct bonding *bond)
265{
266 struct net_device *bond_dev = bond->dev;
267 struct bond_net *bn = net_generic(dev_net(bond_dev), bond_net_id);
268
269 if (bn->proc_dir) {
270 bond->proc_entry = proc_create_seq_data(bond_dev->name, 0444,
271 bn->proc_dir, &bond_info_seq_ops, bond);
272 if (bond->proc_entry == NULL)
273 netdev_warn(bond_dev, "Cannot create /proc/net/%s/%s\n",
274 DRV_NAME, bond_dev->name);
275 else
276 memcpy(bond->proc_file_name, bond_dev->name, IFNAMSIZ);
277 }
278}
279
280void bond_remove_proc_entry(struct bonding *bond)
281{
282 struct net_device *bond_dev = bond->dev;
283 struct bond_net *bn = net_generic(dev_net(bond_dev), bond_net_id);
284
285 if (bn->proc_dir && bond->proc_entry) {
286 remove_proc_entry(bond->proc_file_name, bn->proc_dir);
287 memset(bond->proc_file_name, 0, IFNAMSIZ);
288 bond->proc_entry = NULL;
289 }
290}
291
292
293
294
295void __net_init bond_create_proc_dir(struct bond_net *bn)
296{
297 if (!bn->proc_dir) {
298 bn->proc_dir = proc_mkdir(DRV_NAME, bn->net->proc_net);
299 if (!bn->proc_dir)
300 pr_warn("Warning: Cannot create /proc/net/%s\n",
301 DRV_NAME);
302 }
303}
304
305
306
307
308void __net_exit bond_destroy_proc_dir(struct bond_net *bn)
309{
310 if (bn->proc_dir) {
311 remove_proc_entry(DRV_NAME, bn->net->proc_net);
312 bn->proc_dir = NULL;
313 }
314}
315
