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0b873931 | 1 | /* Copyright (C) 2007-2013 B.A.T.M.A.N. contributors: |
c6c8fea2 SE |
2 | * |
3 | * Marek Lindner, Simon Wunderlich | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or | |
6 | * modify it under the terms of version 2 of the GNU General Public | |
7 | * License as published by the Free Software Foundation. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, but | |
10 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
12 | * General Public License for more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License | |
15 | * along with this program; if not, write to the Free Software | |
16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA | |
17 | * 02110-1301, USA | |
c6c8fea2 SE |
18 | */ |
19 | ||
20 | #include "main.h" | |
21 | #include "soft-interface.h" | |
22 | #include "hard-interface.h" | |
c384ea3e | 23 | #include "distributed-arp-table.h" |
c6c8fea2 SE |
24 | #include "routing.h" |
25 | #include "send.h" | |
b706b13b | 26 | #include "debugfs.h" |
c6c8fea2 | 27 | #include "translation-table.h" |
c6c8fea2 SE |
28 | #include "hash.h" |
29 | #include "gateway_common.h" | |
30 | #include "gateway_client.h" | |
b706b13b | 31 | #include "sysfs.h" |
43676ab5 | 32 | #include "originator.h" |
c6c8fea2 SE |
33 | #include <linux/slab.h> |
34 | #include <linux/ethtool.h> | |
35 | #include <linux/etherdevice.h> | |
36 | #include <linux/if_vlan.h> | |
23721387 | 37 | #include "bridge_loop_avoidance.h" |
d353d8d4 | 38 | #include "network-coding.h" |
c6c8fea2 SE |
39 | |
40 | ||
0294ca0d SE |
41 | static int batadv_get_settings(struct net_device *dev, struct ethtool_cmd *cmd); |
42 | static void batadv_get_drvinfo(struct net_device *dev, | |
43 | struct ethtool_drvinfo *info); | |
44 | static u32 batadv_get_msglevel(struct net_device *dev); | |
45 | static void batadv_set_msglevel(struct net_device *dev, u32 value); | |
46 | static u32 batadv_get_link(struct net_device *dev); | |
f8214865 MH |
47 | static void batadv_get_strings(struct net_device *dev, u32 stringset, u8 *data); |
48 | static void batadv_get_ethtool_stats(struct net_device *dev, | |
49 | struct ethtool_stats *stats, u64 *data); | |
50 | static int batadv_get_sset_count(struct net_device *dev, int stringset); | |
c6c8fea2 | 51 | |
0294ca0d SE |
52 | static const struct ethtool_ops batadv_ethtool_ops = { |
53 | .get_settings = batadv_get_settings, | |
54 | .get_drvinfo = batadv_get_drvinfo, | |
55 | .get_msglevel = batadv_get_msglevel, | |
56 | .set_msglevel = batadv_set_msglevel, | |
57 | .get_link = batadv_get_link, | |
f8214865 MH |
58 | .get_strings = batadv_get_strings, |
59 | .get_ethtool_stats = batadv_get_ethtool_stats, | |
60 | .get_sset_count = batadv_get_sset_count, | |
c6c8fea2 SE |
61 | }; |
62 | ||
04b482a2 | 63 | int batadv_skb_head_push(struct sk_buff *skb, unsigned int len) |
c6c8fea2 SE |
64 | { |
65 | int result; | |
66 | ||
9cfc7bd6 | 67 | /* TODO: We must check if we can release all references to non-payload |
c6c8fea2 SE |
68 | * data using skb_header_release in our skbs to allow skb_cow_header to |
69 | * work optimally. This means that those skbs are not allowed to read | |
70 | * or write any data which is before the current position of skb->data | |
71 | * after that call and thus allow other skbs with the same data buffer | |
72 | * to write freely in that area. | |
73 | */ | |
74 | result = skb_cow_head(skb, len); | |
75 | if (result < 0) | |
76 | return result; | |
77 | ||
78 | skb_push(skb, len); | |
79 | return 0; | |
80 | } | |
81 | ||
0294ca0d | 82 | static int batadv_interface_open(struct net_device *dev) |
c6c8fea2 SE |
83 | { |
84 | netif_start_queue(dev); | |
85 | return 0; | |
86 | } | |
87 | ||
0294ca0d | 88 | static int batadv_interface_release(struct net_device *dev) |
c6c8fea2 SE |
89 | { |
90 | netif_stop_queue(dev); | |
91 | return 0; | |
92 | } | |
93 | ||
0294ca0d | 94 | static struct net_device_stats *batadv_interface_stats(struct net_device *dev) |
c6c8fea2 | 95 | { |
56303d34 | 96 | struct batadv_priv *bat_priv = netdev_priv(dev); |
1c9b0550 ML |
97 | struct net_device_stats *stats = &bat_priv->stats; |
98 | ||
99 | stats->tx_packets = batadv_sum_counter(bat_priv, BATADV_CNT_TX); | |
100 | stats->tx_bytes = batadv_sum_counter(bat_priv, BATADV_CNT_TX_BYTES); | |
101 | stats->tx_dropped = batadv_sum_counter(bat_priv, BATADV_CNT_TX_DROPPED); | |
102 | stats->rx_packets = batadv_sum_counter(bat_priv, BATADV_CNT_RX); | |
103 | stats->rx_bytes = batadv_sum_counter(bat_priv, BATADV_CNT_RX_BYTES); | |
104 | return stats; | |
c6c8fea2 SE |
105 | } |
106 | ||
0294ca0d | 107 | static int batadv_interface_set_mac_addr(struct net_device *dev, void *p) |
c6c8fea2 | 108 | { |
56303d34 | 109 | struct batadv_priv *bat_priv = netdev_priv(dev); |
c6c8fea2 | 110 | struct sockaddr *addr = p; |
40a3eb33 | 111 | uint8_t old_addr[ETH_ALEN]; |
c6c8fea2 SE |
112 | |
113 | if (!is_valid_ether_addr(addr->sa_data)) | |
114 | return -EADDRNOTAVAIL; | |
115 | ||
40a3eb33 D |
116 | memcpy(old_addr, dev->dev_addr, ETH_ALEN); |
117 | memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN); | |
118 | ||
015758d0 | 119 | /* only modify transtable if it has been initialized before */ |
39c75a51 | 120 | if (atomic_read(&bat_priv->mesh_state) == BATADV_MESH_ACTIVE) { |
c018ad3d | 121 | batadv_tt_local_remove(bat_priv, old_addr, BATADV_NO_FLAGS, |
08c36d3e | 122 | "mac address changed", false); |
c018ad3d AQ |
123 | batadv_tt_local_add(dev, addr->sa_data, BATADV_NO_FLAGS, |
124 | BATADV_NULL_IFINDEX); | |
c6c8fea2 SE |
125 | } |
126 | ||
c6c8fea2 SE |
127 | return 0; |
128 | } | |
129 | ||
0294ca0d | 130 | static int batadv_interface_change_mtu(struct net_device *dev, int new_mtu) |
c6c8fea2 SE |
131 | { |
132 | /* check ranges */ | |
9563877e | 133 | if ((new_mtu < 68) || (new_mtu > batadv_hardif_min_mtu(dev))) |
c6c8fea2 SE |
134 | return -EINVAL; |
135 | ||
136 | dev->mtu = new_mtu; | |
137 | ||
138 | return 0; | |
139 | } | |
140 | ||
a4deee1a LL |
141 | /** |
142 | * batadv_interface_set_rx_mode - set the rx mode of a device | |
143 | * @dev: registered network device to modify | |
144 | * | |
145 | * We do not actually need to set any rx filters for the virtual batman | |
146 | * soft interface. However a dummy handler enables a user to set static | |
147 | * multicast listeners for instance. | |
148 | */ | |
149 | static void batadv_interface_set_rx_mode(struct net_device *dev) | |
150 | { | |
151 | } | |
152 | ||
0294ca0d SE |
153 | static int batadv_interface_tx(struct sk_buff *skb, |
154 | struct net_device *soft_iface) | |
c6c8fea2 | 155 | { |
c018ad3d | 156 | struct ethhdr *ethhdr; |
56303d34 SE |
157 | struct batadv_priv *bat_priv = netdev_priv(soft_iface); |
158 | struct batadv_hard_iface *primary_if = NULL; | |
96412690 | 159 | struct batadv_bcast_packet *bcast_packet; |
293e9338 | 160 | __be16 ethertype = htons(ETH_P_BATMAN); |
4934ab95 SW |
161 | static const uint8_t stp_addr[ETH_ALEN] = {0x01, 0x80, 0xC2, 0x00, |
162 | 0x00, 0x00}; | |
163 | static const uint8_t ectp_addr[ETH_ALEN] = {0xCF, 0x00, 0x00, 0x00, | |
164 | 0x00, 0x00}; | |
c018ad3d | 165 | struct vlan_ethhdr *vhdr; |
be7af5cf | 166 | unsigned int header_len = 0; |
c6c8fea2 | 167 | int data_len = skb->len, ret; |
c018ad3d | 168 | unsigned long brd_delay = 1; |
be7af5cf | 169 | bool do_bcast = false; |
c018ad3d | 170 | unsigned short vid; |
bbb1f90e | 171 | uint32_t seqno; |
c6c8fea2 | 172 | |
39c75a51 | 173 | if (atomic_read(&bat_priv->mesh_state) != BATADV_MESH_ACTIVE) |
c6c8fea2 SE |
174 | goto dropped; |
175 | ||
176 | soft_iface->trans_start = jiffies; | |
c018ad3d AQ |
177 | vid = batadv_get_vid(skb, 0); |
178 | ethhdr = (struct ethhdr *)skb->data; | |
c6c8fea2 SE |
179 | |
180 | switch (ntohs(ethhdr->h_proto)) { | |
181 | case ETH_P_8021Q: | |
182 | vhdr = (struct vlan_ethhdr *)skb->data; | |
c6c8fea2 | 183 | |
7e071c79 | 184 | if (vhdr->h_vlan_encapsulated_proto != ethertype) |
c6c8fea2 SE |
185 | break; |
186 | ||
187 | /* fall through */ | |
af5d4f77 | 188 | case ETH_P_BATMAN: |
c6c8fea2 | 189 | goto dropped; |
a7f6ee94 | 190 | } |
c6c8fea2 | 191 | |
08adf151 | 192 | if (batadv_bla_tx(bat_priv, skb, vid)) |
23721387 SW |
193 | goto dropped; |
194 | ||
9d2c9488 LL |
195 | /* skb->data might have been reallocated by batadv_bla_tx() */ |
196 | ethhdr = (struct ethhdr *)skb->data; | |
197 | ||
a73105b8 | 198 | /* Register the client MAC in the transtable */ |
02233e0c | 199 | if (!is_multicast_ether_addr(ethhdr->h_source)) |
c018ad3d AQ |
200 | batadv_tt_local_add(soft_iface, ethhdr->h_source, vid, |
201 | skb->skb_iif); | |
c6c8fea2 | 202 | |
b1a8c04b SW |
203 | /* don't accept stp packets. STP does not help in meshes. |
204 | * better use the bridge loop avoidance ... | |
4934ab95 SW |
205 | * |
206 | * The same goes for ECTP sent at least by some Cisco Switches, | |
207 | * it might confuse the mesh when used with bridge loop avoidance. | |
b1a8c04b | 208 | */ |
1eda58bf | 209 | if (batadv_compare_eth(ethhdr->h_dest, stp_addr)) |
b1a8c04b SW |
210 | goto dropped; |
211 | ||
4934ab95 SW |
212 | if (batadv_compare_eth(ethhdr->h_dest, ectp_addr)) |
213 | goto dropped; | |
214 | ||
be7af5cf ML |
215 | if (is_multicast_ether_addr(ethhdr->h_dest)) { |
216 | do_bcast = true; | |
c6c8fea2 | 217 | |
be7af5cf | 218 | switch (atomic_read(&bat_priv->gw_mode)) { |
cd646ab1 | 219 | case BATADV_GW_MODE_SERVER: |
be7af5cf | 220 | /* gateway servers should not send dhcp |
9cfc7bd6 SE |
221 | * requests into the mesh |
222 | */ | |
7cf06bc6 | 223 | ret = batadv_gw_is_dhcp_target(skb, &header_len); |
be7af5cf ML |
224 | if (ret) |
225 | goto dropped; | |
226 | break; | |
cd646ab1 | 227 | case BATADV_GW_MODE_CLIENT: |
be7af5cf | 228 | /* gateway clients should send dhcp requests |
9cfc7bd6 SE |
229 | * via unicast to their gateway |
230 | */ | |
7cf06bc6 | 231 | ret = batadv_gw_is_dhcp_target(skb, &header_len); |
be7af5cf ML |
232 | if (ret) |
233 | do_bcast = false; | |
234 | break; | |
cd646ab1 | 235 | case BATADV_GW_MODE_OFF: |
be7af5cf ML |
236 | default: |
237 | break; | |
238 | } | |
9d2c9488 LL |
239 | |
240 | /* reminder: ethhdr might have become unusable from here on | |
241 | * (batadv_gw_is_dhcp_target() might have reallocated skb data) | |
242 | */ | |
c6c8fea2 SE |
243 | } |
244 | ||
c54f38c9 SW |
245 | batadv_skb_set_priority(skb, 0); |
246 | ||
c6c8fea2 SE |
247 | /* ethernet packet should be broadcasted */ |
248 | if (do_bcast) { | |
e5d89254 | 249 | primary_if = batadv_primary_if_get_selected(bat_priv); |
32ae9b22 | 250 | if (!primary_if) |
c6c8fea2 SE |
251 | goto dropped; |
252 | ||
c384ea3e AQ |
253 | /* in case of ARP request, we do not immediately broadcasti the |
254 | * packet, instead we first wait for DAT to try to retrieve the | |
255 | * correct ARP entry | |
256 | */ | |
257 | if (batadv_dat_snoop_outgoing_arp_request(bat_priv, skb)) | |
258 | brd_delay = msecs_to_jiffies(ARP_REQ_DELAY); | |
259 | ||
04b482a2 | 260 | if (batadv_skb_head_push(skb, sizeof(*bcast_packet)) < 0) |
c6c8fea2 SE |
261 | goto dropped; |
262 | ||
96412690 | 263 | bcast_packet = (struct batadv_bcast_packet *)skb->data; |
7e071c79 | 264 | bcast_packet->header.version = BATADV_COMPAT_VERSION; |
42d0b044 | 265 | bcast_packet->header.ttl = BATADV_TTL; |
c6c8fea2 SE |
266 | |
267 | /* batman packet type: broadcast */ | |
acd34afa | 268 | bcast_packet->header.packet_type = BATADV_BCAST; |
162d549c | 269 | bcast_packet->reserved = 0; |
c6c8fea2 SE |
270 | |
271 | /* hw address of first interface is the orig mac because only | |
9cfc7bd6 SE |
272 | * this mac is known throughout the mesh |
273 | */ | |
c6c8fea2 | 274 | memcpy(bcast_packet->orig, |
32ae9b22 | 275 | primary_if->net_dev->dev_addr, ETH_ALEN); |
c6c8fea2 SE |
276 | |
277 | /* set broadcast sequence number */ | |
bbb1f90e SE |
278 | seqno = atomic_inc_return(&bat_priv->bcast_seqno); |
279 | bcast_packet->seqno = htonl(seqno); | |
c6c8fea2 | 280 | |
c384ea3e | 281 | batadv_add_bcast_packet_to_list(bat_priv, skb, brd_delay); |
c6c8fea2 SE |
282 | |
283 | /* a copy is stored in the bcast list, therefore removing | |
9cfc7bd6 SE |
284 | * the original skb. |
285 | */ | |
c6c8fea2 SE |
286 | kfree_skb(skb); |
287 | ||
288 | /* unicast packet */ | |
289 | } else { | |
cd646ab1 | 290 | if (atomic_read(&bat_priv->gw_mode) != BATADV_GW_MODE_OFF) { |
9d2c9488 | 291 | ret = batadv_gw_out_of_range(bat_priv, skb); |
be7af5cf ML |
292 | if (ret) |
293 | goto dropped; | |
294 | } | |
295 | ||
c384ea3e AQ |
296 | if (batadv_dat_snoop_outgoing_arp_request(bat_priv, skb)) |
297 | goto dropped; | |
298 | ||
299 | batadv_dat_snoop_outgoing_arp_reply(bat_priv, skb); | |
300 | ||
c018ad3d | 301 | ret = batadv_send_skb_unicast(bat_priv, skb, vid); |
c6c8fea2 SE |
302 | if (ret != 0) |
303 | goto dropped_freed; | |
304 | } | |
305 | ||
1c9b0550 ML |
306 | batadv_inc_counter(bat_priv, BATADV_CNT_TX); |
307 | batadv_add_counter(bat_priv, BATADV_CNT_TX_BYTES, data_len); | |
c6c8fea2 SE |
308 | goto end; |
309 | ||
310 | dropped: | |
311 | kfree_skb(skb); | |
312 | dropped_freed: | |
1c9b0550 | 313 | batadv_inc_counter(bat_priv, BATADV_CNT_TX_DROPPED); |
c6c8fea2 | 314 | end: |
32ae9b22 | 315 | if (primary_if) |
e5d89254 | 316 | batadv_hardif_free_ref(primary_if); |
c6c8fea2 SE |
317 | return NETDEV_TX_OK; |
318 | } | |
319 | ||
04b482a2 | 320 | void batadv_interface_rx(struct net_device *soft_iface, |
56303d34 | 321 | struct sk_buff *skb, struct batadv_hard_iface *recv_if, |
37135173 | 322 | int hdr_size, struct batadv_orig_node *orig_node) |
c6c8fea2 | 323 | { |
04c9f416 | 324 | struct batadv_header *batadv_header = (struct batadv_header *)skb->data; |
c018ad3d | 325 | struct batadv_priv *bat_priv = netdev_priv(soft_iface); |
293e9338 | 326 | __be16 ethertype = htons(ETH_P_BATMAN); |
c018ad3d AQ |
327 | struct vlan_ethhdr *vhdr; |
328 | struct ethhdr *ethhdr; | |
329 | unsigned short vid; | |
2d3f6ccc SW |
330 | bool is_bcast; |
331 | ||
04c9f416 | 332 | is_bcast = (batadv_header->packet_type == BATADV_BCAST); |
c6c8fea2 SE |
333 | |
334 | /* check if enough space is available for pulling, and pull */ | |
335 | if (!pskb_may_pull(skb, hdr_size)) | |
336 | goto dropped; | |
337 | ||
338 | skb_pull_rcsum(skb, hdr_size); | |
339 | skb_reset_mac_header(skb); | |
340 | ||
c018ad3d | 341 | vid = batadv_get_vid(skb, hdr_size); |
7ed4be95 | 342 | ethhdr = eth_hdr(skb); |
c6c8fea2 SE |
343 | |
344 | switch (ntohs(ethhdr->h_proto)) { | |
345 | case ETH_P_8021Q: | |
346 | vhdr = (struct vlan_ethhdr *)skb->data; | |
c6c8fea2 | 347 | |
7e071c79 | 348 | if (vhdr->h_vlan_encapsulated_proto != ethertype) |
c6c8fea2 SE |
349 | break; |
350 | ||
351 | /* fall through */ | |
af5d4f77 | 352 | case ETH_P_BATMAN: |
c6c8fea2 SE |
353 | goto dropped; |
354 | } | |
355 | ||
c6c8fea2 SE |
356 | /* skb->dev & skb->pkt_type are set here */ |
357 | if (unlikely(!pskb_may_pull(skb, ETH_HLEN))) | |
358 | goto dropped; | |
359 | skb->protocol = eth_type_trans(skb, soft_iface); | |
360 | ||
25985edc | 361 | /* should not be necessary anymore as we use skb_pull_rcsum() |
c6c8fea2 | 362 | * TODO: please verify this and remove this TODO |
9cfc7bd6 SE |
363 | * -- Dec 21st 2009, Simon Wunderlich |
364 | */ | |
c6c8fea2 | 365 | |
9cfc7bd6 | 366 | /* skb->ip_summed = CHECKSUM_UNNECESSARY; */ |
c6c8fea2 | 367 | |
1c9b0550 ML |
368 | batadv_inc_counter(bat_priv, BATADV_CNT_RX); |
369 | batadv_add_counter(bat_priv, BATADV_CNT_RX_BYTES, | |
370 | skb->len + ETH_HLEN); | |
c6c8fea2 SE |
371 | |
372 | soft_iface->last_rx = jiffies; | |
373 | ||
74490f96 AQ |
374 | /* Let the bridge loop avoidance check the packet. If will |
375 | * not handle it, we can safely push it up. | |
376 | */ | |
377 | if (batadv_bla_rx(bat_priv, skb, vid, is_bcast)) | |
378 | goto out; | |
379 | ||
37135173 AQ |
380 | if (orig_node) |
381 | batadv_tt_add_temporary_global_entry(bat_priv, orig_node, | |
c018ad3d | 382 | ethhdr->h_source, vid); |
37135173 | 383 | |
08c36d3e | 384 | if (batadv_is_ap_isolated(bat_priv, ethhdr->h_source, ethhdr->h_dest)) |
59b699cd AQ |
385 | goto dropped; |
386 | ||
c6c8fea2 | 387 | netif_rx(skb); |
ba85fac2 | 388 | goto out; |
c6c8fea2 SE |
389 | |
390 | dropped: | |
391 | kfree_skb(skb); | |
392 | out: | |
393 | return; | |
394 | } | |
395 | ||
5d2c05b2 AQ |
396 | /** |
397 | * batadv_softif_vlan_free_ref - decrease the vlan object refcounter and | |
398 | * possibly free it | |
399 | * @softif_vlan: the vlan object to release | |
400 | */ | |
90f4435d | 401 | void batadv_softif_vlan_free_ref(struct batadv_softif_vlan *softif_vlan) |
5d2c05b2 AQ |
402 | { |
403 | if (atomic_dec_and_test(&softif_vlan->refcount)) | |
404 | kfree_rcu(softif_vlan, rcu); | |
405 | } | |
406 | ||
407 | /** | |
408 | * batadv_softif_vlan_get - get the vlan object for a specific vid | |
409 | * @bat_priv: the bat priv with all the soft interface information | |
410 | * @vid: the identifier of the vlan object to retrieve | |
411 | * | |
412 | * Returns the private data of the vlan matching the vid passed as argument or | |
413 | * NULL otherwise. The refcounter of the returned object is incremented by 1. | |
414 | */ | |
90f4435d AQ |
415 | struct batadv_softif_vlan *batadv_softif_vlan_get(struct batadv_priv *bat_priv, |
416 | unsigned short vid) | |
5d2c05b2 AQ |
417 | { |
418 | struct batadv_softif_vlan *vlan_tmp, *vlan = NULL; | |
419 | ||
420 | rcu_read_lock(); | |
421 | hlist_for_each_entry_rcu(vlan_tmp, &bat_priv->softif_vlan_list, list) { | |
422 | if (vlan_tmp->vid != vid) | |
423 | continue; | |
424 | ||
425 | if (!atomic_inc_not_zero(&vlan_tmp->refcount)) | |
426 | continue; | |
427 | ||
428 | vlan = vlan_tmp; | |
429 | break; | |
430 | } | |
431 | rcu_read_unlock(); | |
432 | ||
433 | return vlan; | |
434 | } | |
435 | ||
436 | /** | |
437 | * batadv_create_vlan - allocate the needed resources for a new vlan | |
438 | * @bat_priv: the bat priv with all the soft interface information | |
439 | * @vid: the VLAN identifier | |
440 | * | |
441 | * Returns 0 on success, a negative error otherwise. | |
442 | */ | |
443 | int batadv_softif_create_vlan(struct batadv_priv *bat_priv, unsigned short vid) | |
444 | { | |
445 | struct batadv_softif_vlan *vlan; | |
90f4435d | 446 | int err; |
5d2c05b2 AQ |
447 | |
448 | vlan = batadv_softif_vlan_get(bat_priv, vid); | |
449 | if (vlan) { | |
450 | batadv_softif_vlan_free_ref(vlan); | |
451 | return -EEXIST; | |
452 | } | |
453 | ||
454 | vlan = kzalloc(sizeof(*vlan), GFP_ATOMIC); | |
455 | if (!vlan) | |
456 | return -ENOMEM; | |
457 | ||
458 | vlan->vid = vid; | |
459 | atomic_set(&vlan->refcount, 1); | |
460 | ||
90f4435d AQ |
461 | err = batadv_sysfs_add_vlan(bat_priv->soft_iface, vlan); |
462 | if (err) { | |
463 | kfree(vlan); | |
464 | return err; | |
465 | } | |
466 | ||
5d2c05b2 AQ |
467 | /* add a new TT local entry. This one will be marked with the NOPURGE |
468 | * flag | |
469 | */ | |
470 | batadv_tt_local_add(bat_priv->soft_iface, | |
471 | bat_priv->soft_iface->dev_addr, vid, | |
472 | BATADV_NULL_IFINDEX); | |
473 | ||
474 | spin_lock_bh(&bat_priv->softif_vlan_list_lock); | |
475 | hlist_add_head_rcu(&vlan->list, &bat_priv->softif_vlan_list); | |
476 | spin_unlock_bh(&bat_priv->softif_vlan_list_lock); | |
477 | ||
478 | return 0; | |
479 | } | |
480 | ||
481 | /** | |
482 | * batadv_softif_destroy_vlan - remove and destroy a softif_vlan object | |
483 | * @bat_priv: the bat priv with all the soft interface information | |
484 | * @vlan: the object to remove | |
485 | */ | |
486 | static void batadv_softif_destroy_vlan(struct batadv_priv *bat_priv, | |
487 | struct batadv_softif_vlan *vlan) | |
488 | { | |
489 | spin_lock_bh(&bat_priv->softif_vlan_list_lock); | |
490 | hlist_del_rcu(&vlan->list); | |
491 | spin_unlock_bh(&bat_priv->softif_vlan_list_lock); | |
492 | ||
90f4435d AQ |
493 | batadv_sysfs_del_vlan(bat_priv, vlan); |
494 | ||
5d2c05b2 AQ |
495 | /* explicitly remove the associated TT local entry because it is marked |
496 | * with the NOPURGE flag | |
497 | */ | |
498 | batadv_tt_local_remove(bat_priv, bat_priv->soft_iface->dev_addr, | |
499 | vlan->vid, "vlan interface destroyed", false); | |
500 | ||
501 | batadv_softif_vlan_free_ref(vlan); | |
502 | } | |
503 | ||
504 | /** | |
505 | * batadv_interface_add_vid - ndo_add_vid API implementation | |
506 | * @dev: the netdev of the mesh interface | |
507 | * @vid: identifier of the new vlan | |
508 | * | |
509 | * Set up all the internal structures for handling the new vlan on top of the | |
510 | * mesh interface | |
511 | * | |
512 | * Returns 0 on success or a negative error code in case of failure. | |
513 | */ | |
514 | static int batadv_interface_add_vid(struct net_device *dev, __be16 proto, | |
515 | unsigned short vid) | |
516 | { | |
517 | struct batadv_priv *bat_priv = netdev_priv(dev); | |
518 | ||
519 | /* only 802.1Q vlans are supported. | |
520 | * batman-adv does not know how to handle other types | |
521 | */ | |
522 | if (proto != htons(ETH_P_8021Q)) | |
523 | return -EINVAL; | |
524 | ||
525 | vid |= BATADV_VLAN_HAS_TAG; | |
526 | ||
527 | return batadv_softif_create_vlan(bat_priv, vid); | |
528 | } | |
529 | ||
530 | /** | |
531 | * batadv_interface_kill_vid - ndo_kill_vid API implementation | |
532 | * @dev: the netdev of the mesh interface | |
533 | * @vid: identifier of the deleted vlan | |
534 | * | |
535 | * Destroy all the internal structures used to handle the vlan identified by vid | |
536 | * on top of the mesh interface | |
537 | * | |
538 | * Returns 0 on success, -EINVAL if the specified prototype is not ETH_P_8021Q | |
539 | * or -ENOENT if the specified vlan id wasn't registered. | |
540 | */ | |
541 | static int batadv_interface_kill_vid(struct net_device *dev, __be16 proto, | |
542 | unsigned short vid) | |
543 | { | |
544 | struct batadv_priv *bat_priv = netdev_priv(dev); | |
545 | struct batadv_softif_vlan *vlan; | |
546 | ||
547 | /* only 802.1Q vlans are supported. batman-adv does not know how to | |
548 | * handle other types | |
549 | */ | |
550 | if (proto != htons(ETH_P_8021Q)) | |
551 | return -EINVAL; | |
552 | ||
553 | vlan = batadv_softif_vlan_get(bat_priv, vid | BATADV_VLAN_HAS_TAG); | |
554 | if (!vlan) | |
555 | return -ENOENT; | |
556 | ||
557 | batadv_softif_destroy_vlan(bat_priv, vlan); | |
558 | ||
559 | /* finally free the vlan object */ | |
560 | batadv_softif_vlan_free_ref(vlan); | |
561 | ||
562 | return 0; | |
563 | } | |
564 | ||
36c1d153 SE |
565 | /* batman-adv network devices have devices nesting below it and are a special |
566 | * "super class" of normal network devices; split their locks off into a | |
567 | * separate class since they always nest. | |
568 | */ | |
569 | static struct lock_class_key batadv_netdev_xmit_lock_key; | |
570 | static struct lock_class_key batadv_netdev_addr_lock_key; | |
571 | ||
572 | /** | |
573 | * batadv_set_lockdep_class_one - Set lockdep class for a single tx queue | |
574 | * @dev: device which owns the tx queue | |
575 | * @txq: tx queue to modify | |
576 | * @_unused: always NULL | |
577 | */ | |
578 | static void batadv_set_lockdep_class_one(struct net_device *dev, | |
579 | struct netdev_queue *txq, | |
580 | void *_unused) | |
581 | { | |
582 | lockdep_set_class(&txq->_xmit_lock, &batadv_netdev_xmit_lock_key); | |
583 | } | |
584 | ||
585 | /** | |
586 | * batadv_set_lockdep_class - Set txq and addr_list lockdep class | |
587 | * @dev: network device to modify | |
588 | */ | |
589 | static void batadv_set_lockdep_class(struct net_device *dev) | |
590 | { | |
591 | lockdep_set_class(&dev->addr_list_lock, &batadv_netdev_addr_lock_key); | |
592 | netdev_for_each_tx_queue(dev, batadv_set_lockdep_class_one, NULL); | |
593 | } | |
594 | ||
5bc44dc8 SW |
595 | /** |
596 | * batadv_softif_destroy_finish - cleans up the remains of a softif | |
597 | * @work: work queue item | |
598 | * | |
599 | * Free the parts of the soft interface which can not be removed under | |
600 | * rtnl lock (to prevent deadlock situations). | |
601 | */ | |
602 | static void batadv_softif_destroy_finish(struct work_struct *work) | |
603 | { | |
5d2c05b2 | 604 | struct batadv_softif_vlan *vlan; |
5bc44dc8 SW |
605 | struct batadv_priv *bat_priv; |
606 | struct net_device *soft_iface; | |
607 | ||
608 | bat_priv = container_of(work, struct batadv_priv, | |
609 | cleanup_work); | |
610 | soft_iface = bat_priv->soft_iface; | |
611 | ||
5d2c05b2 AQ |
612 | /* destroy the "untagged" VLAN */ |
613 | vlan = batadv_softif_vlan_get(bat_priv, BATADV_NO_FLAGS); | |
614 | if (vlan) { | |
615 | batadv_softif_destroy_vlan(bat_priv, vlan); | |
616 | batadv_softif_vlan_free_ref(vlan); | |
617 | } | |
618 | ||
5bc44dc8 SW |
619 | batadv_sysfs_del_meshif(soft_iface); |
620 | ||
621 | rtnl_lock(); | |
622 | unregister_netdevice(soft_iface); | |
623 | rtnl_unlock(); | |
624 | } | |
625 | ||
37130293 SE |
626 | /** |
627 | * batadv_softif_init_late - late stage initialization of soft interface | |
628 | * @dev: registered network device to modify | |
629 | * | |
630 | * Returns error code on failures | |
631 | */ | |
632 | static int batadv_softif_init_late(struct net_device *dev) | |
c6c8fea2 | 633 | { |
56303d34 | 634 | struct batadv_priv *bat_priv; |
ee75ed88 | 635 | uint32_t random_seqno; |
c6c8fea2 | 636 | int ret; |
d69909d2 | 637 | size_t cnt_len = sizeof(uint64_t) * BATADV_CNT_NUM; |
c6c8fea2 | 638 | |
37130293 | 639 | batadv_set_lockdep_class(dev); |
c6c8fea2 | 640 | |
37130293 SE |
641 | bat_priv = netdev_priv(dev); |
642 | bat_priv->soft_iface = dev; | |
5bc44dc8 | 643 | INIT_WORK(&bat_priv->cleanup_work, batadv_softif_destroy_finish); |
1c9b0550 ML |
644 | |
645 | /* batadv_interface_stats() needs to be available as soon as | |
646 | * register_netdevice() has been called | |
647 | */ | |
648 | bat_priv->bat_counters = __alloc_percpu(cnt_len, __alignof__(uint64_t)); | |
649 | if (!bat_priv->bat_counters) | |
37130293 | 650 | return -ENOMEM; |
c6c8fea2 | 651 | |
c6c8fea2 SE |
652 | atomic_set(&bat_priv->aggregated_ogms, 1); |
653 | atomic_set(&bat_priv->bonding, 0); | |
fa706554 | 654 | #ifdef CONFIG_BATMAN_ADV_BLA |
23721387 | 655 | atomic_set(&bat_priv->bridge_loop_avoidance, 0); |
fa706554 | 656 | #endif |
33af49ad AQ |
657 | #ifdef CONFIG_BATMAN_ADV_DAT |
658 | atomic_set(&bat_priv->distributed_arp_table, 1); | |
659 | #endif | |
59b699cd | 660 | atomic_set(&bat_priv->ap_isolation, 0); |
cd646ab1 | 661 | atomic_set(&bat_priv->gw_mode, BATADV_GW_MODE_OFF); |
c6c8fea2 | 662 | atomic_set(&bat_priv->gw_sel_class, 20); |
414254e3 ML |
663 | atomic_set(&bat_priv->gw.bandwidth_down, 100); |
664 | atomic_set(&bat_priv->gw.bandwidth_up, 20); | |
c6c8fea2 | 665 | atomic_set(&bat_priv->orig_interval, 1000); |
8681a1c4 | 666 | atomic_set(&bat_priv->hop_penalty, 30); |
0c430d0d | 667 | #ifdef CONFIG_BATMAN_ADV_DEBUG |
c6c8fea2 | 668 | atomic_set(&bat_priv->log_level, 0); |
0c430d0d | 669 | #endif |
c6c8fea2 | 670 | atomic_set(&bat_priv->fragmentation, 1); |
42d0b044 SE |
671 | atomic_set(&bat_priv->bcast_queue_left, BATADV_BCAST_QUEUE_LEN); |
672 | atomic_set(&bat_priv->batman_queue_left, BATADV_BATMAN_QUEUE_LEN); | |
c6c8fea2 | 673 | |
39c75a51 | 674 | atomic_set(&bat_priv->mesh_state, BATADV_MESH_INACTIVE); |
c6c8fea2 | 675 | atomic_set(&bat_priv->bcast_seqno, 1); |
807736f6 SE |
676 | atomic_set(&bat_priv->tt.vn, 0); |
677 | atomic_set(&bat_priv->tt.local_changes, 0); | |
678 | atomic_set(&bat_priv->tt.ogm_append_cnt, 0); | |
679 | #ifdef CONFIG_BATMAN_ADV_BLA | |
680 | atomic_set(&bat_priv->bla.num_requests, 0); | |
681 | #endif | |
682 | bat_priv->tt.last_changeset = NULL; | |
683 | bat_priv->tt.last_changeset_len = 0; | |
c6c8fea2 | 684 | |
ee75ed88 MH |
685 | /* randomize initial seqno to avoid collision */ |
686 | get_random_bytes(&random_seqno, sizeof(random_seqno)); | |
687 | atomic_set(&bat_priv->frag_seqno, random_seqno); | |
688 | ||
c6c8fea2 SE |
689 | bat_priv->primary_if = NULL; |
690 | bat_priv->num_ifaces = 0; | |
c6c8fea2 | 691 | |
d353d8d4 MH |
692 | batadv_nc_init_bat_priv(bat_priv); |
693 | ||
37130293 | 694 | ret = batadv_algo_select(bat_priv, batadv_routing_algo); |
c6c8fea2 | 695 | if (ret < 0) |
37130293 | 696 | goto free_bat_counters; |
c6c8fea2 | 697 | |
37130293 | 698 | ret = batadv_debugfs_add_meshif(dev); |
c6c8fea2 | 699 | if (ret < 0) |
37130293 | 700 | goto free_bat_counters; |
c6c8fea2 | 701 | |
37130293 | 702 | ret = batadv_mesh_init(dev); |
c6c8fea2 SE |
703 | if (ret < 0) |
704 | goto unreg_debugfs; | |
705 | ||
37130293 | 706 | return 0; |
c6c8fea2 SE |
707 | |
708 | unreg_debugfs: | |
37130293 | 709 | batadv_debugfs_del_meshif(dev); |
1c9b0550 ML |
710 | free_bat_counters: |
711 | free_percpu(bat_priv->bat_counters); | |
f69ae770 | 712 | bat_priv->bat_counters = NULL; |
37130293 SE |
713 | |
714 | return ret; | |
715 | } | |
716 | ||
3dbd550b SE |
717 | /** |
718 | * batadv_softif_slave_add - Add a slave interface to a batadv_soft_interface | |
719 | * @dev: batadv_soft_interface used as master interface | |
720 | * @slave_dev: net_device which should become the slave interface | |
721 | * | |
722 | * Return 0 if successful or error otherwise. | |
723 | */ | |
724 | static int batadv_softif_slave_add(struct net_device *dev, | |
725 | struct net_device *slave_dev) | |
726 | { | |
727 | struct batadv_hard_iface *hard_iface; | |
728 | int ret = -EINVAL; | |
729 | ||
730 | hard_iface = batadv_hardif_get_by_netdev(slave_dev); | |
731 | if (!hard_iface || hard_iface->soft_iface != NULL) | |
732 | goto out; | |
733 | ||
734 | ret = batadv_hardif_enable_interface(hard_iface, dev->name); | |
735 | ||
736 | out: | |
737 | if (hard_iface) | |
738 | batadv_hardif_free_ref(hard_iface); | |
739 | return ret; | |
740 | } | |
741 | ||
742 | /** | |
743 | * batadv_softif_slave_del - Delete a slave iface from a batadv_soft_interface | |
744 | * @dev: batadv_soft_interface used as master interface | |
745 | * @slave_dev: net_device which should be removed from the master interface | |
746 | * | |
747 | * Return 0 if successful or error otherwise. | |
748 | */ | |
749 | static int batadv_softif_slave_del(struct net_device *dev, | |
750 | struct net_device *slave_dev) | |
751 | { | |
752 | struct batadv_hard_iface *hard_iface; | |
753 | int ret = -EINVAL; | |
754 | ||
755 | hard_iface = batadv_hardif_get_by_netdev(slave_dev); | |
756 | ||
757 | if (!hard_iface || hard_iface->soft_iface != dev) | |
758 | goto out; | |
759 | ||
760 | batadv_hardif_disable_interface(hard_iface, BATADV_IF_CLEANUP_KEEP); | |
761 | ret = 0; | |
762 | ||
763 | out: | |
764 | if (hard_iface) | |
765 | batadv_hardif_free_ref(hard_iface); | |
766 | return ret; | |
767 | } | |
768 | ||
37130293 SE |
769 | static const struct net_device_ops batadv_netdev_ops = { |
770 | .ndo_init = batadv_softif_init_late, | |
771 | .ndo_open = batadv_interface_open, | |
772 | .ndo_stop = batadv_interface_release, | |
773 | .ndo_get_stats = batadv_interface_stats, | |
5d2c05b2 AQ |
774 | .ndo_vlan_rx_add_vid = batadv_interface_add_vid, |
775 | .ndo_vlan_rx_kill_vid = batadv_interface_kill_vid, | |
37130293 SE |
776 | .ndo_set_mac_address = batadv_interface_set_mac_addr, |
777 | .ndo_change_mtu = batadv_interface_change_mtu, | |
a4deee1a | 778 | .ndo_set_rx_mode = batadv_interface_set_rx_mode, |
37130293 | 779 | .ndo_start_xmit = batadv_interface_tx, |
3dbd550b SE |
780 | .ndo_validate_addr = eth_validate_addr, |
781 | .ndo_add_slave = batadv_softif_slave_add, | |
782 | .ndo_del_slave = batadv_softif_slave_del, | |
37130293 SE |
783 | }; |
784 | ||
b3246020 SE |
785 | /** |
786 | * batadv_softif_free - Deconstructor of batadv_soft_interface | |
787 | * @dev: Device to cleanup and remove | |
788 | */ | |
789 | static void batadv_softif_free(struct net_device *dev) | |
790 | { | |
791 | batadv_debugfs_del_meshif(dev); | |
792 | batadv_mesh_free(dev); | |
0c501345 AQ |
793 | |
794 | /* some scheduled RCU callbacks need the bat_priv struct to accomplish | |
795 | * their tasks. Wait for them all to be finished before freeing the | |
796 | * netdev and its private data (bat_priv) | |
797 | */ | |
798 | rcu_barrier(); | |
799 | ||
b3246020 SE |
800 | free_netdev(dev); |
801 | } | |
802 | ||
37130293 SE |
803 | /** |
804 | * batadv_softif_init_early - early stage initialization of soft interface | |
805 | * @dev: registered network device to modify | |
806 | */ | |
807 | static void batadv_softif_init_early(struct net_device *dev) | |
808 | { | |
809 | struct batadv_priv *priv = netdev_priv(dev); | |
810 | ||
811 | ether_setup(dev); | |
812 | ||
813 | dev->netdev_ops = &batadv_netdev_ops; | |
b3246020 | 814 | dev->destructor = batadv_softif_free; |
5d2c05b2 | 815 | dev->features |= NETIF_F_HW_VLAN_CTAG_FILTER; |
37130293 SE |
816 | dev->tx_queue_len = 0; |
817 | ||
818 | /* can't call min_mtu, because the needed variables | |
819 | * have not been initialized yet | |
820 | */ | |
821 | dev->mtu = ETH_DATA_LEN; | |
822 | /* reserve more space in the skbuff for our header */ | |
411d6ed9 | 823 | dev->hard_header_len = batadv_max_header_len(); |
37130293 SE |
824 | |
825 | /* generate random address */ | |
826 | eth_hw_addr_random(dev); | |
827 | ||
828 | SET_ETHTOOL_OPS(dev, &batadv_ethtool_ops); | |
829 | ||
830 | memset(priv, 0, sizeof(*priv)); | |
831 | } | |
832 | ||
833 | struct net_device *batadv_softif_create(const char *name) | |
834 | { | |
835 | struct net_device *soft_iface; | |
836 | int ret; | |
837 | ||
838 | soft_iface = alloc_netdev(sizeof(struct batadv_priv), name, | |
839 | batadv_softif_init_early); | |
840 | if (!soft_iface) | |
841 | return NULL; | |
842 | ||
a4ac28c0 SE |
843 | soft_iface->rtnl_link_ops = &batadv_link_ops; |
844 | ||
37130293 SE |
845 | ret = register_netdevice(soft_iface); |
846 | if (ret < 0) { | |
847 | pr_err("Unable to register the batman interface '%s': %i\n", | |
848 | name, ret); | |
849 | free_netdev(soft_iface); | |
850 | return NULL; | |
851 | } | |
852 | ||
853 | return soft_iface; | |
c6c8fea2 SE |
854 | } |
855 | ||
e07932ae ML |
856 | /** |
857 | * batadv_softif_destroy_sysfs - deletion of batadv_soft_interface via sysfs | |
858 | * @soft_iface: the to-be-removed batman-adv interface | |
859 | */ | |
860 | void batadv_softif_destroy_sysfs(struct net_device *soft_iface) | |
c6c8fea2 | 861 | { |
5bc44dc8 SW |
862 | struct batadv_priv *bat_priv = netdev_priv(soft_iface); |
863 | ||
5bc44dc8 | 864 | queue_work(batadv_event_workqueue, &bat_priv->cleanup_work); |
c6c8fea2 SE |
865 | } |
866 | ||
a4ac28c0 SE |
867 | /** |
868 | * batadv_softif_destroy_netlink - deletion of batadv_soft_interface via netlink | |
869 | * @soft_iface: the to-be-removed batman-adv interface | |
870 | * @head: list pointer | |
871 | */ | |
872 | static void batadv_softif_destroy_netlink(struct net_device *soft_iface, | |
873 | struct list_head *head) | |
874 | { | |
875 | struct batadv_hard_iface *hard_iface; | |
876 | ||
877 | list_for_each_entry(hard_iface, &batadv_hardif_list, list) { | |
878 | if (hard_iface->soft_iface == soft_iface) | |
879 | batadv_hardif_disable_interface(hard_iface, | |
880 | BATADV_IF_CLEANUP_KEEP); | |
881 | } | |
882 | ||
883 | batadv_sysfs_del_meshif(soft_iface); | |
884 | unregister_netdevice_queue(soft_iface, head); | |
885 | } | |
886 | ||
04b482a2 | 887 | int batadv_softif_is_valid(const struct net_device *net_dev) |
e44d8fe2 | 888 | { |
0294ca0d | 889 | if (net_dev->netdev_ops->ndo_start_xmit == batadv_interface_tx) |
e44d8fe2 | 890 | return 1; |
e44d8fe2 SE |
891 | |
892 | return 0; | |
893 | } | |
894 | ||
a4ac28c0 SE |
895 | struct rtnl_link_ops batadv_link_ops __read_mostly = { |
896 | .kind = "batadv", | |
897 | .priv_size = sizeof(struct batadv_priv), | |
898 | .setup = batadv_softif_init_early, | |
899 | .dellink = batadv_softif_destroy_netlink, | |
900 | }; | |
901 | ||
c6c8fea2 | 902 | /* ethtool */ |
0294ca0d | 903 | static int batadv_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) |
c6c8fea2 SE |
904 | { |
905 | cmd->supported = 0; | |
906 | cmd->advertising = 0; | |
70739497 | 907 | ethtool_cmd_speed_set(cmd, SPEED_10); |
c6c8fea2 SE |
908 | cmd->duplex = DUPLEX_FULL; |
909 | cmd->port = PORT_TP; | |
910 | cmd->phy_address = 0; | |
911 | cmd->transceiver = XCVR_INTERNAL; | |
912 | cmd->autoneg = AUTONEG_DISABLE; | |
913 | cmd->maxtxpkt = 0; | |
914 | cmd->maxrxpkt = 0; | |
915 | ||
916 | return 0; | |
917 | } | |
918 | ||
0294ca0d SE |
919 | static void batadv_get_drvinfo(struct net_device *dev, |
920 | struct ethtool_drvinfo *info) | |
c6c8fea2 | 921 | { |
7826d43f JP |
922 | strlcpy(info->driver, "B.A.T.M.A.N. advanced", sizeof(info->driver)); |
923 | strlcpy(info->version, BATADV_SOURCE_VERSION, sizeof(info->version)); | |
924 | strlcpy(info->fw_version, "N/A", sizeof(info->fw_version)); | |
925 | strlcpy(info->bus_info, "batman", sizeof(info->bus_info)); | |
c6c8fea2 SE |
926 | } |
927 | ||
0294ca0d | 928 | static u32 batadv_get_msglevel(struct net_device *dev) |
c6c8fea2 SE |
929 | { |
930 | return -EOPNOTSUPP; | |
931 | } | |
932 | ||
0294ca0d | 933 | static void batadv_set_msglevel(struct net_device *dev, u32 value) |
c6c8fea2 SE |
934 | { |
935 | } | |
936 | ||
0294ca0d | 937 | static u32 batadv_get_link(struct net_device *dev) |
c6c8fea2 SE |
938 | { |
939 | return 1; | |
940 | } | |
f8214865 MH |
941 | |
942 | /* Inspired by drivers/net/ethernet/dlink/sundance.c:1702 | |
943 | * Declare each description string in struct.name[] to get fixed sized buffer | |
944 | * and compile time checking for strings longer than ETH_GSTRING_LEN. | |
945 | */ | |
946 | static const struct { | |
947 | const char name[ETH_GSTRING_LEN]; | |
0294ca0d | 948 | } batadv_counters_strings[] = { |
1c9b0550 ML |
949 | { "tx" }, |
950 | { "tx_bytes" }, | |
951 | { "tx_dropped" }, | |
952 | { "rx" }, | |
953 | { "rx_bytes" }, | |
f8214865 MH |
954 | { "forward" }, |
955 | { "forward_bytes" }, | |
956 | { "mgmt_tx" }, | |
957 | { "mgmt_tx_bytes" }, | |
958 | { "mgmt_rx" }, | |
959 | { "mgmt_rx_bytes" }, | |
ee75ed88 MH |
960 | { "frag_tx" }, |
961 | { "frag_tx_bytes" }, | |
610bfc6b MH |
962 | { "frag_rx" }, |
963 | { "frag_rx_bytes" }, | |
964 | { "frag_fwd" }, | |
965 | { "frag_fwd_bytes" }, | |
f8214865 MH |
966 | { "tt_request_tx" }, |
967 | { "tt_request_rx" }, | |
968 | { "tt_response_tx" }, | |
969 | { "tt_response_rx" }, | |
970 | { "tt_roam_adv_tx" }, | |
971 | { "tt_roam_adv_rx" }, | |
4046b24a MH |
972 | #ifdef CONFIG_BATMAN_ADV_DAT |
973 | { "dat_get_tx" }, | |
974 | { "dat_get_rx" }, | |
975 | { "dat_put_tx" }, | |
976 | { "dat_put_rx" }, | |
977 | { "dat_cached_reply_tx" }, | |
978 | #endif | |
3c12de9a MH |
979 | #ifdef CONFIG_BATMAN_ADV_NC |
980 | { "nc_code" }, | |
981 | { "nc_code_bytes" }, | |
982 | { "nc_recode" }, | |
983 | { "nc_recode_bytes" }, | |
612d2b4f | 984 | { "nc_buffer" }, |
2df5278b MH |
985 | { "nc_decode" }, |
986 | { "nc_decode_bytes" }, | |
987 | { "nc_decode_failed" }, | |
988 | { "nc_sniffed" }, | |
3c12de9a | 989 | #endif |
f8214865 MH |
990 | }; |
991 | ||
992 | static void batadv_get_strings(struct net_device *dev, uint32_t stringset, | |
993 | uint8_t *data) | |
994 | { | |
995 | if (stringset == ETH_SS_STATS) | |
0294ca0d SE |
996 | memcpy(data, batadv_counters_strings, |
997 | sizeof(batadv_counters_strings)); | |
f8214865 MH |
998 | } |
999 | ||
1000 | static void batadv_get_ethtool_stats(struct net_device *dev, | |
1001 | struct ethtool_stats *stats, | |
1002 | uint64_t *data) | |
1003 | { | |
56303d34 | 1004 | struct batadv_priv *bat_priv = netdev_priv(dev); |
f8214865 MH |
1005 | int i; |
1006 | ||
d69909d2 | 1007 | for (i = 0; i < BATADV_CNT_NUM; i++) |
f8214865 MH |
1008 | data[i] = batadv_sum_counter(bat_priv, i); |
1009 | } | |
1010 | ||
1011 | static int batadv_get_sset_count(struct net_device *dev, int stringset) | |
1012 | { | |
1013 | if (stringset == ETH_SS_STATS) | |
d69909d2 | 1014 | return BATADV_CNT_NUM; |
f8214865 MH |
1015 | |
1016 | return -EOPNOTSUPP; | |
1017 | } |