Commit | Line | Data |
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bd33acc3 | 1 | #include <linux/proc_fs.h> |
ee40fa06 | 2 | #include <linux/export.h> |
bd33acc3 AW |
3 | #include <net/net_namespace.h> |
4 | #include <net/netns/generic.h> | |
5 | #include "bonding.h" | |
6 | ||
7 | ||
bd33acc3 AW |
8 | static 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; | |
9caff1e7 | 13 | struct list_head *iter; |
bd33acc3 | 14 | struct slave *slave; |
9caff1e7 | 15 | loff_t off = 0; |
bd33acc3 AW |
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 | ||
9caff1e7 | 24 | bond_for_each_slave(bond, slave, iter) |
bd33acc3 AW |
25 | if (++off == *pos) |
26 | return slave; | |
bd33acc3 AW |
27 | |
28 | return NULL; | |
29 | } | |
30 | ||
31 | static void *bond_info_seq_next(struct seq_file *seq, void *v, loff_t *pos) | |
32 | { | |
33 | struct bonding *bond = seq->private; | |
f9650845 VF |
34 | struct list_head *iter; |
35 | struct slave *slave; | |
36 | bool found = false; | |
bd33acc3 AW |
37 | |
38 | ++*pos; | |
39 | if (v == SEQ_START_TOKEN) | |
dec1e90e | 40 | return bond_first_slave(bond); |
bd33acc3 | 41 | |
f9650845 | 42 | if (bond_is_last_slave(bond, v)) |
dec1e90e | 43 | return NULL; |
bd33acc3 | 44 | |
f9650845 VF |
45 | bond_for_each_slave(bond, slave, iter) { |
46 | if (found) | |
47 | return slave; | |
48 | if (slave == v) | |
49 | found = true; | |
50 | } | |
51 | ||
52 | return NULL; | |
bd33acc3 AW |
53 | } |
54 | ||
55 | static void bond_info_seq_stop(struct seq_file *seq, void *v) | |
56 | __releases(&bond->lock) | |
57 | __releases(RCU) | |
58 | { | |
59 | struct bonding *bond = seq->private; | |
60 | ||
61 | read_unlock(&bond->lock); | |
62 | rcu_read_unlock(); | |
63 | } | |
64 | ||
65 | static void bond_info_show_master(struct seq_file *seq) | |
66 | { | |
67 | struct bonding *bond = seq->private; | |
28f084cc | 68 | const struct bond_opt_value *optval; |
bd33acc3 AW |
69 | struct slave *curr; |
70 | int i; | |
71 | ||
4335d60e | 72 | curr = rcu_dereference(bond->curr_active_slave); |
bd33acc3 AW |
73 | |
74 | seq_printf(seq, "Bonding Mode: %s", | |
01844098 | 75 | bond_mode_name(BOND_MODE(bond))); |
bd33acc3 | 76 | |
01844098 | 77 | if (BOND_MODE(bond) == BOND_MODE_ACTIVEBACKUP && |
1df6b6aa NA |
78 | bond->params.fail_over_mac) { |
79 | optval = bond_opt_get_val(BOND_OPT_FAIL_OVER_MAC, | |
80 | bond->params.fail_over_mac); | |
81 | seq_printf(seq, " (fail_over_mac %s)", optval->string); | |
82 | } | |
bd33acc3 AW |
83 | |
84 | seq_printf(seq, "\n"); | |
85 | ||
01844098 VF |
86 | if (BOND_MODE(bond) == BOND_MODE_XOR || |
87 | BOND_MODE(bond) == BOND_MODE_8023AD) { | |
a4b32ce7 NA |
88 | optval = bond_opt_get_val(BOND_OPT_XMIT_HASH, |
89 | bond->params.xmit_policy); | |
bd33acc3 | 90 | seq_printf(seq, "Transmit Hash Policy: %s (%d)\n", |
a4b32ce7 | 91 | optval->string, bond->params.xmit_policy); |
bd33acc3 AW |
92 | } |
93 | ||
ec0865a9 | 94 | if (bond_uses_primary(bond)) { |
bd33acc3 AW |
95 | seq_printf(seq, "Primary Slave: %s", |
96 | (bond->primary_slave) ? | |
97 | bond->primary_slave->dev->name : "None"); | |
388d3a6d NA |
98 | if (bond->primary_slave) { |
99 | optval = bond_opt_get_val(BOND_OPT_PRIMARY_RESELECT, | |
100 | bond->params.primary_reselect); | |
bd33acc3 | 101 | seq_printf(seq, " (primary_reselect %s)", |
388d3a6d NA |
102 | optval->string); |
103 | } | |
bd33acc3 AW |
104 | |
105 | seq_printf(seq, "\nCurrently Active Slave: %s\n", | |
106 | (curr) ? curr->dev->name : "None"); | |
107 | } | |
108 | ||
109 | seq_printf(seq, "MII Status: %s\n", netif_carrier_ok(bond->dev) ? | |
110 | "up" : "down"); | |
111 | seq_printf(seq, "MII Polling Interval (ms): %d\n", bond->params.miimon); | |
112 | seq_printf(seq, "Up Delay (ms): %d\n", | |
113 | bond->params.updelay * bond->params.miimon); | |
114 | seq_printf(seq, "Down Delay (ms): %d\n", | |
115 | bond->params.downdelay * bond->params.miimon); | |
116 | ||
117 | ||
118 | /* ARP information */ | |
119 | if (bond->params.arp_interval > 0) { | |
120 | int printed = 0; | |
121 | seq_printf(seq, "ARP Polling Interval (ms): %d\n", | |
122 | bond->params.arp_interval); | |
123 | ||
124 | seq_printf(seq, "ARP IP target/s (n.n.n.n form):"); | |
125 | ||
126 | for (i = 0; (i < BOND_MAX_ARP_TARGETS); i++) { | |
127 | if (!bond->params.arp_targets[i]) | |
128 | break; | |
129 | if (printed) | |
130 | seq_printf(seq, ","); | |
131 | seq_printf(seq, " %pI4", &bond->params.arp_targets[i]); | |
132 | printed = 1; | |
133 | } | |
134 | seq_printf(seq, "\n"); | |
135 | } | |
136 | ||
01844098 | 137 | if (BOND_MODE(bond) == BOND_MODE_8023AD) { |
bd33acc3 AW |
138 | struct ad_info ad_info; |
139 | ||
140 | seq_puts(seq, "\n802.3ad info\n"); | |
141 | seq_printf(seq, "LACP rate: %s\n", | |
142 | (bond->params.lacp_fast) ? "fast" : "slow"); | |
655f8919 | 143 | seq_printf(seq, "Min links: %d\n", bond->params.min_links); |
9e5f5eeb NA |
144 | optval = bond_opt_get_val(BOND_OPT_AD_SELECT, |
145 | bond->params.ad_select); | |
bd33acc3 | 146 | seq_printf(seq, "Aggregator selection policy (ad_select): %s\n", |
9e5f5eeb | 147 | optval->string); |
bd33acc3 | 148 | |
318debd8 | 149 | if (__bond_3ad_get_active_agg_info(bond, &ad_info)) { |
bd33acc3 AW |
150 | seq_printf(seq, "bond %s has no active aggregator\n", |
151 | bond->dev->name); | |
152 | } else { | |
153 | seq_printf(seq, "Active Aggregator Info:\n"); | |
154 | ||
155 | seq_printf(seq, "\tAggregator ID: %d\n", | |
156 | ad_info.aggregator_id); | |
157 | seq_printf(seq, "\tNumber of ports: %d\n", | |
158 | ad_info.ports); | |
159 | seq_printf(seq, "\tActor Key: %d\n", | |
160 | ad_info.actor_key); | |
161 | seq_printf(seq, "\tPartner Key: %d\n", | |
162 | ad_info.partner_key); | |
163 | seq_printf(seq, "\tPartner Mac Address: %pM\n", | |
164 | ad_info.partner_system); | |
165 | } | |
166 | } | |
167 | } | |
168 | ||
169 | static void bond_info_show_slave(struct seq_file *seq, | |
170 | const struct slave *slave) | |
171 | { | |
172 | struct bonding *bond = seq->private; | |
173 | ||
174 | seq_printf(seq, "\nSlave Interface: %s\n", slave->dev->name); | |
df2bcc4a | 175 | seq_printf(seq, "MII Status: %s\n", bond_slave_link_status(slave->link)); |
589665f5 | 176 | if (slave->speed == SPEED_UNKNOWN) |
98f41f69 WP |
177 | seq_printf(seq, "Speed: %s\n", "Unknown"); |
178 | else | |
179 | seq_printf(seq, "Speed: %d Mbps\n", slave->speed); | |
180 | ||
589665f5 | 181 | if (slave->duplex == DUPLEX_UNKNOWN) |
98f41f69 WP |
182 | seq_printf(seq, "Duplex: %s\n", "Unknown"); |
183 | else | |
184 | seq_printf(seq, "Duplex: %s\n", slave->duplex ? "full" : "half"); | |
185 | ||
bd33acc3 AW |
186 | seq_printf(seq, "Link Failure Count: %u\n", |
187 | slave->link_failure_count); | |
188 | ||
189 | seq_printf(seq, "Permanent HW addr: %pM\n", slave->perm_hwaddr); | |
190 | ||
01844098 | 191 | if (BOND_MODE(bond) == BOND_MODE_8023AD) { |
bd33acc3 | 192 | const struct aggregator *agg |
3fdddd85 | 193 | = SLAVE_AD_INFO(slave)->port.aggregator; |
bd33acc3 AW |
194 | |
195 | if (agg) | |
196 | seq_printf(seq, "Aggregator ID: %d\n", | |
197 | agg->aggregator_identifier); | |
198 | else | |
199 | seq_puts(seq, "Aggregator ID: N/A\n"); | |
200 | } | |
201 | seq_printf(seq, "Slave queue ID: %d\n", slave->queue_id); | |
202 | } | |
203 | ||
204 | static int bond_info_seq_show(struct seq_file *seq, void *v) | |
205 | { | |
206 | if (v == SEQ_START_TOKEN) { | |
207 | seq_printf(seq, "%s\n", bond_version); | |
208 | bond_info_show_master(seq); | |
209 | } else | |
210 | bond_info_show_slave(seq, v); | |
211 | ||
212 | return 0; | |
213 | } | |
214 | ||
215 | static const struct seq_operations bond_info_seq_ops = { | |
216 | .start = bond_info_seq_start, | |
217 | .next = bond_info_seq_next, | |
218 | .stop = bond_info_seq_stop, | |
219 | .show = bond_info_seq_show, | |
220 | }; | |
221 | ||
222 | static int bond_info_open(struct inode *inode, struct file *file) | |
223 | { | |
224 | struct seq_file *seq; | |
bd33acc3 AW |
225 | int res; |
226 | ||
227 | res = seq_open(file, &bond_info_seq_ops); | |
228 | if (!res) { | |
229 | /* recover the pointer buried in proc_dir_entry data */ | |
230 | seq = file->private_data; | |
d9dda78b | 231 | seq->private = PDE_DATA(inode); |
bd33acc3 AW |
232 | } |
233 | ||
234 | return res; | |
235 | } | |
236 | ||
237 | static const struct file_operations bond_info_fops = { | |
238 | .owner = THIS_MODULE, | |
239 | .open = bond_info_open, | |
240 | .read = seq_read, | |
241 | .llseek = seq_lseek, | |
242 | .release = seq_release, | |
243 | }; | |
244 | ||
245 | void bond_create_proc_entry(struct bonding *bond) | |
246 | { | |
247 | struct net_device *bond_dev = bond->dev; | |
248 | struct bond_net *bn = net_generic(dev_net(bond_dev), bond_net_id); | |
249 | ||
250 | if (bn->proc_dir) { | |
251 | bond->proc_entry = proc_create_data(bond_dev->name, | |
252 | S_IRUGO, bn->proc_dir, | |
253 | &bond_info_fops, bond); | |
254 | if (bond->proc_entry == NULL) | |
91565ebb JP |
255 | pr_warn("Warning: Cannot create /proc/net/%s/%s\n", |
256 | DRV_NAME, bond_dev->name); | |
bd33acc3 AW |
257 | else |
258 | memcpy(bond->proc_file_name, bond_dev->name, IFNAMSIZ); | |
259 | } | |
260 | } | |
261 | ||
262 | void bond_remove_proc_entry(struct bonding *bond) | |
263 | { | |
264 | struct net_device *bond_dev = bond->dev; | |
265 | struct bond_net *bn = net_generic(dev_net(bond_dev), bond_net_id); | |
266 | ||
267 | if (bn->proc_dir && bond->proc_entry) { | |
268 | remove_proc_entry(bond->proc_file_name, bn->proc_dir); | |
269 | memset(bond->proc_file_name, 0, IFNAMSIZ); | |
270 | bond->proc_entry = NULL; | |
271 | } | |
272 | } | |
273 | ||
274 | /* Create the bonding directory under /proc/net, if doesn't exist yet. | |
275 | * Caller must hold rtnl_lock. | |
276 | */ | |
277 | void __net_init bond_create_proc_dir(struct bond_net *bn) | |
278 | { | |
279 | if (!bn->proc_dir) { | |
280 | bn->proc_dir = proc_mkdir(DRV_NAME, bn->net->proc_net); | |
281 | if (!bn->proc_dir) | |
90194264 | 282 | pr_warn("Warning: Cannot create /proc/net/%s\n", |
91565ebb | 283 | DRV_NAME); |
bd33acc3 AW |
284 | } |
285 | } | |
286 | ||
287 | /* Destroy the bonding directory under /proc/net, if empty. | |
288 | * Caller must hold rtnl_lock. | |
289 | */ | |
290 | void __net_exit bond_destroy_proc_dir(struct bond_net *bn) | |
291 | { | |
292 | if (bn->proc_dir) { | |
293 | remove_proc_entry(DRV_NAME, bn->net->proc_net); | |
294 | bn->proc_dir = NULL; | |
295 | } | |
296 | } |