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Commit | Line | Data |
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c6c8fea2 | 1 | /* |
567db7b0 | 2 | * Copyright (C) 2007-2012 B.A.T.M.A.N. contributors: |
c6c8fea2 SE |
3 | * |
4 | * Marek Lindner, Simon Wunderlich | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or | |
7 | * modify it under the terms of version 2 of the GNU General Public | |
8 | * License as published by the Free Software Foundation. | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, but | |
11 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | * General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU General Public License | |
16 | * along with this program; if not, write to the Free Software | |
17 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA | |
18 | * 02110-1301, USA | |
19 | * | |
20 | */ | |
21 | ||
22 | #include "main.h" | |
23 | #include "soft-interface.h" | |
24 | #include "hard-interface.h" | |
25 | #include "routing.h" | |
26 | #include "send.h" | |
27 | #include "bat_debugfs.h" | |
28 | #include "translation-table.h" | |
c6c8fea2 SE |
29 | #include "hash.h" |
30 | #include "gateway_common.h" | |
31 | #include "gateway_client.h" | |
c6c8fea2 | 32 | #include "bat_sysfs.h" |
43676ab5 | 33 | #include "originator.h" |
c6c8fea2 SE |
34 | #include <linux/slab.h> |
35 | #include <linux/ethtool.h> | |
36 | #include <linux/etherdevice.h> | |
37 | #include <linux/if_vlan.h> | |
38 | #include "unicast.h" | |
23721387 | 39 | #include "bridge_loop_avoidance.h" |
c6c8fea2 SE |
40 | |
41 | ||
42 | static int bat_get_settings(struct net_device *dev, struct ethtool_cmd *cmd); | |
43 | static void bat_get_drvinfo(struct net_device *dev, | |
44 | struct ethtool_drvinfo *info); | |
45 | static u32 bat_get_msglevel(struct net_device *dev); | |
46 | static void bat_set_msglevel(struct net_device *dev, u32 value); | |
47 | static u32 bat_get_link(struct net_device *dev); | |
f8214865 MH |
48 | static void batadv_get_strings(struct net_device *dev, u32 stringset, u8 *data); |
49 | static void batadv_get_ethtool_stats(struct net_device *dev, | |
50 | struct ethtool_stats *stats, u64 *data); | |
51 | static int batadv_get_sset_count(struct net_device *dev, int stringset); | |
c6c8fea2 SE |
52 | |
53 | static const struct ethtool_ops bat_ethtool_ops = { | |
54 | .get_settings = bat_get_settings, | |
55 | .get_drvinfo = bat_get_drvinfo, | |
56 | .get_msglevel = bat_get_msglevel, | |
57 | .set_msglevel = bat_set_msglevel, | |
58 | .get_link = bat_get_link, | |
f8214865 MH |
59 | .get_strings = batadv_get_strings, |
60 | .get_ethtool_stats = batadv_get_ethtool_stats, | |
61 | .get_sset_count = batadv_get_sset_count, | |
c6c8fea2 SE |
62 | }; |
63 | ||
64 | int my_skb_head_push(struct sk_buff *skb, unsigned int len) | |
65 | { | |
66 | int result; | |
67 | ||
68 | /** | |
69 | * TODO: We must check if we can release all references to non-payload | |
70 | * data using skb_header_release in our skbs to allow skb_cow_header to | |
71 | * work optimally. This means that those skbs are not allowed to read | |
72 | * or write any data which is before the current position of skb->data | |
73 | * after that call and thus allow other skbs with the same data buffer | |
74 | * to write freely in that area. | |
75 | */ | |
76 | result = skb_cow_head(skb, len); | |
77 | if (result < 0) | |
78 | return result; | |
79 | ||
80 | skb_push(skb, len); | |
81 | return 0; | |
82 | } | |
83 | ||
c6c8fea2 SE |
84 | static int interface_open(struct net_device *dev) |
85 | { | |
86 | netif_start_queue(dev); | |
87 | return 0; | |
88 | } | |
89 | ||
90 | static int interface_release(struct net_device *dev) | |
91 | { | |
92 | netif_stop_queue(dev); | |
93 | return 0; | |
94 | } | |
95 | ||
96 | static struct net_device_stats *interface_stats(struct net_device *dev) | |
97 | { | |
98 | struct bat_priv *bat_priv = netdev_priv(dev); | |
99 | return &bat_priv->stats; | |
100 | } | |
101 | ||
102 | static int interface_set_mac_addr(struct net_device *dev, void *p) | |
103 | { | |
104 | struct bat_priv *bat_priv = netdev_priv(dev); | |
105 | struct sockaddr *addr = p; | |
106 | ||
107 | if (!is_valid_ether_addr(addr->sa_data)) | |
108 | return -EADDRNOTAVAIL; | |
109 | ||
015758d0 | 110 | /* only modify transtable if it has been initialized before */ |
c6c8fea2 | 111 | if (atomic_read(&bat_priv->mesh_state) == MESH_ACTIVE) { |
2dafb49d | 112 | tt_local_remove(bat_priv, dev->dev_addr, |
cc47f66e | 113 | "mac address changed", false); |
bc279080 | 114 | tt_local_add(dev, addr->sa_data, NULL_IFINDEX); |
c6c8fea2 SE |
115 | } |
116 | ||
117 | memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN); | |
28009a6c | 118 | dev->addr_assign_type &= ~NET_ADDR_RANDOM; |
c6c8fea2 SE |
119 | return 0; |
120 | } | |
121 | ||
122 | static int interface_change_mtu(struct net_device *dev, int new_mtu) | |
123 | { | |
124 | /* check ranges */ | |
9563877e | 125 | if ((new_mtu < 68) || (new_mtu > batadv_hardif_min_mtu(dev))) |
c6c8fea2 SE |
126 | return -EINVAL; |
127 | ||
128 | dev->mtu = new_mtu; | |
129 | ||
130 | return 0; | |
131 | } | |
132 | ||
db69ecfc | 133 | static int interface_tx(struct sk_buff *skb, struct net_device *soft_iface) |
c6c8fea2 SE |
134 | { |
135 | struct ethhdr *ethhdr = (struct ethhdr *)skb->data; | |
136 | struct bat_priv *bat_priv = netdev_priv(soft_iface); | |
32ae9b22 | 137 | struct hard_iface *primary_if = NULL; |
c6c8fea2 SE |
138 | struct bcast_packet *bcast_packet; |
139 | struct vlan_ethhdr *vhdr; | |
b1a8c04b SW |
140 | static const uint8_t stp_addr[ETH_ALEN] = {0x01, 0x80, 0xC2, 0x00, 0x00, |
141 | 0x00}; | |
be7af5cf | 142 | unsigned int header_len = 0; |
c6c8fea2 | 143 | int data_len = skb->len, ret; |
7a5cc242 | 144 | short vid __maybe_unused = -1; |
be7af5cf | 145 | bool do_bcast = false; |
c6c8fea2 SE |
146 | |
147 | if (atomic_read(&bat_priv->mesh_state) != MESH_ACTIVE) | |
148 | goto dropped; | |
149 | ||
150 | soft_iface->trans_start = jiffies; | |
151 | ||
152 | switch (ntohs(ethhdr->h_proto)) { | |
153 | case ETH_P_8021Q: | |
154 | vhdr = (struct vlan_ethhdr *)skb->data; | |
155 | vid = ntohs(vhdr->h_vlan_TCI) & VLAN_VID_MASK; | |
156 | ||
157 | if (ntohs(vhdr->h_vlan_encapsulated_proto) != ETH_P_BATMAN) | |
158 | break; | |
159 | ||
160 | /* fall through */ | |
161 | case ETH_P_BATMAN: | |
c6c8fea2 | 162 | goto dropped; |
a7f6ee94 | 163 | } |
c6c8fea2 | 164 | |
08adf151 | 165 | if (batadv_bla_tx(bat_priv, skb, vid)) |
23721387 SW |
166 | goto dropped; |
167 | ||
a73105b8 | 168 | /* Register the client MAC in the transtable */ |
bc279080 | 169 | tt_local_add(soft_iface, ethhdr->h_source, skb->skb_iif); |
c6c8fea2 | 170 | |
b1a8c04b SW |
171 | /* don't accept stp packets. STP does not help in meshes. |
172 | * better use the bridge loop avoidance ... | |
173 | */ | |
174 | if (compare_eth(ethhdr->h_dest, stp_addr)) | |
175 | goto dropped; | |
176 | ||
be7af5cf ML |
177 | if (is_multicast_ether_addr(ethhdr->h_dest)) { |
178 | do_bcast = true; | |
c6c8fea2 | 179 | |
be7af5cf ML |
180 | switch (atomic_read(&bat_priv->gw_mode)) { |
181 | case GW_MODE_SERVER: | |
182 | /* gateway servers should not send dhcp | |
183 | * requests into the mesh */ | |
7cf06bc6 | 184 | ret = batadv_gw_is_dhcp_target(skb, &header_len); |
be7af5cf ML |
185 | if (ret) |
186 | goto dropped; | |
187 | break; | |
188 | case GW_MODE_CLIENT: | |
189 | /* gateway clients should send dhcp requests | |
190 | * via unicast to their gateway */ | |
7cf06bc6 | 191 | ret = batadv_gw_is_dhcp_target(skb, &header_len); |
be7af5cf ML |
192 | if (ret) |
193 | do_bcast = false; | |
194 | break; | |
195 | case GW_MODE_OFF: | |
196 | default: | |
197 | break; | |
198 | } | |
c6c8fea2 SE |
199 | } |
200 | ||
201 | /* ethernet packet should be broadcasted */ | |
202 | if (do_bcast) { | |
32ae9b22 ML |
203 | primary_if = primary_if_get_selected(bat_priv); |
204 | if (!primary_if) | |
c6c8fea2 SE |
205 | goto dropped; |
206 | ||
704509b8 | 207 | if (my_skb_head_push(skb, sizeof(*bcast_packet)) < 0) |
c6c8fea2 SE |
208 | goto dropped; |
209 | ||
210 | bcast_packet = (struct bcast_packet *)skb->data; | |
76543d14 SE |
211 | bcast_packet->header.version = COMPAT_VERSION; |
212 | bcast_packet->header.ttl = TTL; | |
c6c8fea2 SE |
213 | |
214 | /* batman packet type: broadcast */ | |
76543d14 | 215 | bcast_packet->header.packet_type = BAT_BCAST; |
c6c8fea2 SE |
216 | |
217 | /* hw address of first interface is the orig mac because only | |
218 | * this mac is known throughout the mesh */ | |
219 | memcpy(bcast_packet->orig, | |
32ae9b22 | 220 | primary_if->net_dev->dev_addr, ETH_ALEN); |
c6c8fea2 SE |
221 | |
222 | /* set broadcast sequence number */ | |
223 | bcast_packet->seqno = | |
224 | htonl(atomic_inc_return(&bat_priv->bcast_seqno)); | |
225 | ||
8698529d | 226 | add_bcast_packet_to_list(bat_priv, skb, 1); |
c6c8fea2 SE |
227 | |
228 | /* a copy is stored in the bcast list, therefore removing | |
229 | * the original skb. */ | |
230 | kfree_skb(skb); | |
231 | ||
232 | /* unicast packet */ | |
233 | } else { | |
be7af5cf | 234 | if (atomic_read(&bat_priv->gw_mode) != GW_MODE_OFF) { |
7cf06bc6 | 235 | ret = batadv_gw_out_of_range(bat_priv, skb, ethhdr); |
be7af5cf ML |
236 | if (ret) |
237 | goto dropped; | |
238 | } | |
239 | ||
c6c8fea2 SE |
240 | ret = unicast_send_skb(skb, bat_priv); |
241 | if (ret != 0) | |
242 | goto dropped_freed; | |
243 | } | |
244 | ||
245 | bat_priv->stats.tx_packets++; | |
246 | bat_priv->stats.tx_bytes += data_len; | |
247 | goto end; | |
248 | ||
249 | dropped: | |
250 | kfree_skb(skb); | |
251 | dropped_freed: | |
252 | bat_priv->stats.tx_dropped++; | |
253 | end: | |
32ae9b22 ML |
254 | if (primary_if) |
255 | hardif_free_ref(primary_if); | |
c6c8fea2 SE |
256 | return NETDEV_TX_OK; |
257 | } | |
258 | ||
259 | void interface_rx(struct net_device *soft_iface, | |
e6c10f43 | 260 | struct sk_buff *skb, struct hard_iface *recv_if, |
c6c8fea2 SE |
261 | int hdr_size) |
262 | { | |
263 | struct bat_priv *bat_priv = netdev_priv(soft_iface); | |
c6c8fea2 SE |
264 | struct ethhdr *ethhdr; |
265 | struct vlan_ethhdr *vhdr; | |
7a5cc242 | 266 | short vid __maybe_unused = -1; |
c6c8fea2 SE |
267 | |
268 | /* check if enough space is available for pulling, and pull */ | |
269 | if (!pskb_may_pull(skb, hdr_size)) | |
270 | goto dropped; | |
271 | ||
272 | skb_pull_rcsum(skb, hdr_size); | |
273 | skb_reset_mac_header(skb); | |
274 | ||
275 | ethhdr = (struct ethhdr *)skb_mac_header(skb); | |
276 | ||
277 | switch (ntohs(ethhdr->h_proto)) { | |
278 | case ETH_P_8021Q: | |
279 | vhdr = (struct vlan_ethhdr *)skb->data; | |
280 | vid = ntohs(vhdr->h_vlan_TCI) & VLAN_VID_MASK; | |
281 | ||
282 | if (ntohs(vhdr->h_vlan_encapsulated_proto) != ETH_P_BATMAN) | |
283 | break; | |
284 | ||
285 | /* fall through */ | |
286 | case ETH_P_BATMAN: | |
287 | goto dropped; | |
288 | } | |
289 | ||
c6c8fea2 SE |
290 | /* skb->dev & skb->pkt_type are set here */ |
291 | if (unlikely(!pskb_may_pull(skb, ETH_HLEN))) | |
292 | goto dropped; | |
293 | skb->protocol = eth_type_trans(skb, soft_iface); | |
294 | ||
25985edc | 295 | /* should not be necessary anymore as we use skb_pull_rcsum() |
c6c8fea2 SE |
296 | * TODO: please verify this and remove this TODO |
297 | * -- Dec 21st 2009, Simon Wunderlich */ | |
298 | ||
299 | /* skb->ip_summed = CHECKSUM_UNNECESSARY;*/ | |
300 | ||
301 | bat_priv->stats.rx_packets++; | |
0d125074 | 302 | bat_priv->stats.rx_bytes += skb->len + ETH_HLEN; |
c6c8fea2 SE |
303 | |
304 | soft_iface->last_rx = jiffies; | |
305 | ||
59b699cd AQ |
306 | if (is_ap_isolated(bat_priv, ethhdr->h_source, ethhdr->h_dest)) |
307 | goto dropped; | |
308 | ||
23721387 SW |
309 | /* Let the bridge loop avoidance check the packet. If will |
310 | * not handle it, we can safely push it up. | |
311 | */ | |
08adf151 | 312 | if (batadv_bla_rx(bat_priv, skb, vid)) |
23721387 SW |
313 | goto out; |
314 | ||
c6c8fea2 | 315 | netif_rx(skb); |
ba85fac2 | 316 | goto out; |
c6c8fea2 SE |
317 | |
318 | dropped: | |
319 | kfree_skb(skb); | |
320 | out: | |
321 | return; | |
322 | } | |
323 | ||
c6c8fea2 SE |
324 | static const struct net_device_ops bat_netdev_ops = { |
325 | .ndo_open = interface_open, | |
326 | .ndo_stop = interface_release, | |
327 | .ndo_get_stats = interface_stats, | |
328 | .ndo_set_mac_address = interface_set_mac_addr, | |
329 | .ndo_change_mtu = interface_change_mtu, | |
330 | .ndo_start_xmit = interface_tx, | |
331 | .ndo_validate_addr = eth_validate_addr | |
332 | }; | |
c6c8fea2 SE |
333 | |
334 | static void interface_setup(struct net_device *dev) | |
335 | { | |
336 | struct bat_priv *priv = netdev_priv(dev); | |
c6c8fea2 SE |
337 | |
338 | ether_setup(dev); | |
339 | ||
c6c8fea2 | 340 | dev->netdev_ops = &bat_netdev_ops; |
c6c8fea2 | 341 | dev->destructor = free_netdev; |
af20b710 | 342 | dev->tx_queue_len = 0; |
c6c8fea2 SE |
343 | |
344 | /** | |
345 | * can't call min_mtu, because the needed variables | |
346 | * have not been initialized yet | |
347 | */ | |
348 | dev->mtu = ETH_DATA_LEN; | |
6e215fd8 SE |
349 | /* reserve more space in the skbuff for our header */ |
350 | dev->hard_header_len = BAT_HEADER_LEN; | |
c6c8fea2 SE |
351 | |
352 | /* generate random address */ | |
28009a6c | 353 | eth_hw_addr_random(dev); |
c6c8fea2 SE |
354 | |
355 | SET_ETHTOOL_OPS(dev, &bat_ethtool_ops); | |
356 | ||
704509b8 | 357 | memset(priv, 0, sizeof(*priv)); |
c6c8fea2 SE |
358 | } |
359 | ||
747e4221 | 360 | struct net_device *softif_create(const char *name) |
c6c8fea2 SE |
361 | { |
362 | struct net_device *soft_iface; | |
363 | struct bat_priv *bat_priv; | |
364 | int ret; | |
365 | ||
704509b8 | 366 | soft_iface = alloc_netdev(sizeof(*bat_priv), name, interface_setup); |
c6c8fea2 | 367 | |
320f422f | 368 | if (!soft_iface) |
c6c8fea2 | 369 | goto out; |
c6c8fea2 | 370 | |
c3caf519 | 371 | ret = register_netdevice(soft_iface); |
c6c8fea2 SE |
372 | if (ret < 0) { |
373 | pr_err("Unable to register the batman interface '%s': %i\n", | |
374 | name, ret); | |
375 | goto free_soft_iface; | |
376 | } | |
377 | ||
378 | bat_priv = netdev_priv(soft_iface); | |
379 | ||
380 | atomic_set(&bat_priv->aggregated_ogms, 1); | |
381 | atomic_set(&bat_priv->bonding, 0); | |
23721387 | 382 | atomic_set(&bat_priv->bridge_loop_avoidance, 0); |
59b699cd | 383 | atomic_set(&bat_priv->ap_isolation, 0); |
c6c8fea2 SE |
384 | atomic_set(&bat_priv->vis_mode, VIS_TYPE_CLIENT_UPDATE); |
385 | atomic_set(&bat_priv->gw_mode, GW_MODE_OFF); | |
386 | atomic_set(&bat_priv->gw_sel_class, 20); | |
387 | atomic_set(&bat_priv->gw_bandwidth, 41); | |
388 | atomic_set(&bat_priv->orig_interval, 1000); | |
8681a1c4 | 389 | atomic_set(&bat_priv->hop_penalty, 30); |
c6c8fea2 SE |
390 | atomic_set(&bat_priv->log_level, 0); |
391 | atomic_set(&bat_priv->fragmentation, 1); | |
392 | atomic_set(&bat_priv->bcast_queue_left, BCAST_QUEUE_LEN); | |
393 | atomic_set(&bat_priv->batman_queue_left, BATMAN_QUEUE_LEN); | |
394 | ||
395 | atomic_set(&bat_priv->mesh_state, MESH_INACTIVE); | |
396 | atomic_set(&bat_priv->bcast_seqno, 1); | |
a73105b8 AQ |
397 | atomic_set(&bat_priv->ttvn, 0); |
398 | atomic_set(&bat_priv->tt_local_changes, 0); | |
399 | atomic_set(&bat_priv->tt_ogm_append_cnt, 0); | |
23721387 | 400 | atomic_set(&bat_priv->bla_num_requests, 0); |
a73105b8 AQ |
401 | |
402 | bat_priv->tt_buff = NULL; | |
403 | bat_priv->tt_buff_len = 0; | |
cc47f66e | 404 | bat_priv->tt_poss_change = false; |
c6c8fea2 SE |
405 | |
406 | bat_priv->primary_if = NULL; | |
407 | bat_priv->num_ifaces = 0; | |
c6c8fea2 | 408 | |
f8214865 MH |
409 | bat_priv->bat_counters = __alloc_percpu(sizeof(uint64_t) * BAT_CNT_NUM, |
410 | __alignof__(uint64_t)); | |
411 | if (!bat_priv->bat_counters) | |
412 | goto unreg_soft_iface; | |
413 | ||
1c280471 ML |
414 | ret = bat_algo_select(bat_priv, bat_routing_algo); |
415 | if (ret < 0) | |
f8214865 | 416 | goto free_bat_counters; |
1c280471 | 417 | |
5853e22c | 418 | ret = batadv_sysfs_add_meshif(soft_iface); |
c6c8fea2 | 419 | if (ret < 0) |
f8214865 | 420 | goto free_bat_counters; |
c6c8fea2 | 421 | |
40a072d7 | 422 | ret = batadv_debugfs_add_meshif(soft_iface); |
c6c8fea2 SE |
423 | if (ret < 0) |
424 | goto unreg_sysfs; | |
425 | ||
426 | ret = mesh_init(soft_iface); | |
427 | if (ret < 0) | |
428 | goto unreg_debugfs; | |
429 | ||
430 | return soft_iface; | |
431 | ||
432 | unreg_debugfs: | |
40a072d7 | 433 | batadv_debugfs_del_meshif(soft_iface); |
c6c8fea2 | 434 | unreg_sysfs: |
5853e22c | 435 | batadv_sysfs_del_meshif(soft_iface); |
f8214865 MH |
436 | free_bat_counters: |
437 | free_percpu(bat_priv->bat_counters); | |
c6c8fea2 | 438 | unreg_soft_iface: |
06ba7ce2 | 439 | unregister_netdevice(soft_iface); |
c6c8fea2 SE |
440 | return NULL; |
441 | ||
442 | free_soft_iface: | |
443 | free_netdev(soft_iface); | |
444 | out: | |
445 | return NULL; | |
446 | } | |
447 | ||
448 | void softif_destroy(struct net_device *soft_iface) | |
449 | { | |
40a072d7 | 450 | batadv_debugfs_del_meshif(soft_iface); |
5853e22c | 451 | batadv_sysfs_del_meshif(soft_iface); |
c6c8fea2 SE |
452 | mesh_free(soft_iface); |
453 | unregister_netdevice(soft_iface); | |
454 | } | |
455 | ||
747e4221 | 456 | int softif_is_valid(const struct net_device *net_dev) |
e44d8fe2 | 457 | { |
e44d8fe2 SE |
458 | if (net_dev->netdev_ops->ndo_start_xmit == interface_tx) |
459 | return 1; | |
e44d8fe2 SE |
460 | |
461 | return 0; | |
462 | } | |
463 | ||
c6c8fea2 SE |
464 | /* ethtool */ |
465 | static int bat_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) | |
466 | { | |
467 | cmd->supported = 0; | |
468 | cmd->advertising = 0; | |
70739497 | 469 | ethtool_cmd_speed_set(cmd, SPEED_10); |
c6c8fea2 SE |
470 | cmd->duplex = DUPLEX_FULL; |
471 | cmd->port = PORT_TP; | |
472 | cmd->phy_address = 0; | |
473 | cmd->transceiver = XCVR_INTERNAL; | |
474 | cmd->autoneg = AUTONEG_DISABLE; | |
475 | cmd->maxtxpkt = 0; | |
476 | cmd->maxrxpkt = 0; | |
477 | ||
478 | return 0; | |
479 | } | |
480 | ||
481 | static void bat_get_drvinfo(struct net_device *dev, | |
482 | struct ethtool_drvinfo *info) | |
483 | { | |
484 | strcpy(info->driver, "B.A.T.M.A.N. advanced"); | |
485 | strcpy(info->version, SOURCE_VERSION); | |
486 | strcpy(info->fw_version, "N/A"); | |
487 | strcpy(info->bus_info, "batman"); | |
488 | } | |
489 | ||
490 | static u32 bat_get_msglevel(struct net_device *dev) | |
491 | { | |
492 | return -EOPNOTSUPP; | |
493 | } | |
494 | ||
495 | static void bat_set_msglevel(struct net_device *dev, u32 value) | |
496 | { | |
497 | } | |
498 | ||
499 | static u32 bat_get_link(struct net_device *dev) | |
500 | { | |
501 | return 1; | |
502 | } | |
f8214865 MH |
503 | |
504 | /* Inspired by drivers/net/ethernet/dlink/sundance.c:1702 | |
505 | * Declare each description string in struct.name[] to get fixed sized buffer | |
506 | * and compile time checking for strings longer than ETH_GSTRING_LEN. | |
507 | */ | |
508 | static const struct { | |
509 | const char name[ETH_GSTRING_LEN]; | |
510 | } bat_counters_strings[] = { | |
511 | { "forward" }, | |
512 | { "forward_bytes" }, | |
513 | { "mgmt_tx" }, | |
514 | { "mgmt_tx_bytes" }, | |
515 | { "mgmt_rx" }, | |
516 | { "mgmt_rx_bytes" }, | |
517 | { "tt_request_tx" }, | |
518 | { "tt_request_rx" }, | |
519 | { "tt_response_tx" }, | |
520 | { "tt_response_rx" }, | |
521 | { "tt_roam_adv_tx" }, | |
522 | { "tt_roam_adv_rx" }, | |
523 | }; | |
524 | ||
525 | static void batadv_get_strings(struct net_device *dev, uint32_t stringset, | |
526 | uint8_t *data) | |
527 | { | |
528 | if (stringset == ETH_SS_STATS) | |
529 | memcpy(data, bat_counters_strings, | |
530 | sizeof(bat_counters_strings)); | |
531 | } | |
532 | ||
533 | static void batadv_get_ethtool_stats(struct net_device *dev, | |
534 | struct ethtool_stats *stats, | |
535 | uint64_t *data) | |
536 | { | |
537 | struct bat_priv *bat_priv = netdev_priv(dev); | |
538 | int i; | |
539 | ||
540 | for (i = 0; i < BAT_CNT_NUM; i++) | |
541 | data[i] = batadv_sum_counter(bat_priv, i); | |
542 | } | |
543 | ||
544 | static int batadv_get_sset_count(struct net_device *dev, int stringset) | |
545 | { | |
546 | if (stringset == ETH_SS_STATS) | |
547 | return BAT_CNT_NUM; | |
548 | ||
549 | return -EOPNOTSUPP; | |
550 | } |