Commit | Line | Data |
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9cfc7bd6 | 1 | /* Copyright (C) 2007-2012 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" | |
23 | #include "routing.h" | |
24 | #include "send.h" | |
b706b13b | 25 | #include "debugfs.h" |
c6c8fea2 | 26 | #include "translation-table.h" |
c6c8fea2 SE |
27 | #include "hash.h" |
28 | #include "gateway_common.h" | |
29 | #include "gateway_client.h" | |
b706b13b | 30 | #include "sysfs.h" |
43676ab5 | 31 | #include "originator.h" |
c6c8fea2 SE |
32 | #include <linux/slab.h> |
33 | #include <linux/ethtool.h> | |
34 | #include <linux/etherdevice.h> | |
35 | #include <linux/if_vlan.h> | |
36 | #include "unicast.h" | |
23721387 | 37 | #include "bridge_loop_avoidance.h" |
c6c8fea2 SE |
38 | |
39 | ||
0294ca0d SE |
40 | static int batadv_get_settings(struct net_device *dev, struct ethtool_cmd *cmd); |
41 | static void batadv_get_drvinfo(struct net_device *dev, | |
42 | struct ethtool_drvinfo *info); | |
43 | static u32 batadv_get_msglevel(struct net_device *dev); | |
44 | static void batadv_set_msglevel(struct net_device *dev, u32 value); | |
45 | static u32 batadv_get_link(struct net_device *dev); | |
f8214865 MH |
46 | static void batadv_get_strings(struct net_device *dev, u32 stringset, u8 *data); |
47 | static void batadv_get_ethtool_stats(struct net_device *dev, | |
48 | struct ethtool_stats *stats, u64 *data); | |
49 | static int batadv_get_sset_count(struct net_device *dev, int stringset); | |
c6c8fea2 | 50 | |
0294ca0d SE |
51 | static const struct ethtool_ops batadv_ethtool_ops = { |
52 | .get_settings = batadv_get_settings, | |
53 | .get_drvinfo = batadv_get_drvinfo, | |
54 | .get_msglevel = batadv_get_msglevel, | |
55 | .set_msglevel = batadv_set_msglevel, | |
56 | .get_link = batadv_get_link, | |
f8214865 MH |
57 | .get_strings = batadv_get_strings, |
58 | .get_ethtool_stats = batadv_get_ethtool_stats, | |
59 | .get_sset_count = batadv_get_sset_count, | |
c6c8fea2 SE |
60 | }; |
61 | ||
04b482a2 | 62 | int batadv_skb_head_push(struct sk_buff *skb, unsigned int len) |
c6c8fea2 SE |
63 | { |
64 | int result; | |
65 | ||
9cfc7bd6 | 66 | /* TODO: We must check if we can release all references to non-payload |
c6c8fea2 SE |
67 | * data using skb_header_release in our skbs to allow skb_cow_header to |
68 | * work optimally. This means that those skbs are not allowed to read | |
69 | * or write any data which is before the current position of skb->data | |
70 | * after that call and thus allow other skbs with the same data buffer | |
71 | * to write freely in that area. | |
72 | */ | |
73 | result = skb_cow_head(skb, len); | |
74 | if (result < 0) | |
75 | return result; | |
76 | ||
77 | skb_push(skb, len); | |
78 | return 0; | |
79 | } | |
80 | ||
0294ca0d | 81 | static int batadv_interface_open(struct net_device *dev) |
c6c8fea2 SE |
82 | { |
83 | netif_start_queue(dev); | |
84 | return 0; | |
85 | } | |
86 | ||
0294ca0d | 87 | static int batadv_interface_release(struct net_device *dev) |
c6c8fea2 SE |
88 | { |
89 | netif_stop_queue(dev); | |
90 | return 0; | |
91 | } | |
92 | ||
0294ca0d | 93 | static struct net_device_stats *batadv_interface_stats(struct net_device *dev) |
c6c8fea2 | 94 | { |
56303d34 | 95 | struct batadv_priv *bat_priv = netdev_priv(dev); |
1c9b0550 ML |
96 | struct net_device_stats *stats = &bat_priv->stats; |
97 | ||
98 | stats->tx_packets = batadv_sum_counter(bat_priv, BATADV_CNT_TX); | |
99 | stats->tx_bytes = batadv_sum_counter(bat_priv, BATADV_CNT_TX_BYTES); | |
100 | stats->tx_dropped = batadv_sum_counter(bat_priv, BATADV_CNT_TX_DROPPED); | |
101 | stats->rx_packets = batadv_sum_counter(bat_priv, BATADV_CNT_RX); | |
102 | stats->rx_bytes = batadv_sum_counter(bat_priv, BATADV_CNT_RX_BYTES); | |
103 | return stats; | |
c6c8fea2 SE |
104 | } |
105 | ||
0294ca0d | 106 | static int batadv_interface_set_mac_addr(struct net_device *dev, void *p) |
c6c8fea2 | 107 | { |
56303d34 | 108 | struct batadv_priv *bat_priv = netdev_priv(dev); |
c6c8fea2 | 109 | struct sockaddr *addr = p; |
40a3eb33 | 110 | uint8_t old_addr[ETH_ALEN]; |
c6c8fea2 SE |
111 | |
112 | if (!is_valid_ether_addr(addr->sa_data)) | |
113 | return -EADDRNOTAVAIL; | |
114 | ||
40a3eb33 D |
115 | memcpy(old_addr, dev->dev_addr, ETH_ALEN); |
116 | memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN); | |
117 | ||
015758d0 | 118 | /* only modify transtable if it has been initialized before */ |
39c75a51 | 119 | if (atomic_read(&bat_priv->mesh_state) == BATADV_MESH_ACTIVE) { |
40a3eb33 | 120 | batadv_tt_local_remove(bat_priv, old_addr, |
08c36d3e | 121 | "mac address changed", false); |
42d0b044 | 122 | batadv_tt_local_add(dev, addr->sa_data, BATADV_NULL_IFINDEX); |
c6c8fea2 SE |
123 | } |
124 | ||
28009a6c | 125 | dev->addr_assign_type &= ~NET_ADDR_RANDOM; |
c6c8fea2 SE |
126 | return 0; |
127 | } | |
128 | ||
0294ca0d | 129 | static int batadv_interface_change_mtu(struct net_device *dev, int new_mtu) |
c6c8fea2 SE |
130 | { |
131 | /* check ranges */ | |
9563877e | 132 | if ((new_mtu < 68) || (new_mtu > batadv_hardif_min_mtu(dev))) |
c6c8fea2 SE |
133 | return -EINVAL; |
134 | ||
135 | dev->mtu = new_mtu; | |
136 | ||
137 | return 0; | |
138 | } | |
139 | ||
0294ca0d SE |
140 | static int batadv_interface_tx(struct sk_buff *skb, |
141 | struct net_device *soft_iface) | |
c6c8fea2 SE |
142 | { |
143 | struct ethhdr *ethhdr = (struct ethhdr *)skb->data; | |
56303d34 SE |
144 | struct batadv_priv *bat_priv = netdev_priv(soft_iface); |
145 | struct batadv_hard_iface *primary_if = NULL; | |
96412690 | 146 | struct batadv_bcast_packet *bcast_packet; |
c6c8fea2 | 147 | struct vlan_ethhdr *vhdr; |
7e071c79 | 148 | __be16 ethertype = __constant_htons(BATADV_ETH_P_BATMAN); |
b1a8c04b SW |
149 | static const uint8_t stp_addr[ETH_ALEN] = {0x01, 0x80, 0xC2, 0x00, 0x00, |
150 | 0x00}; | |
be7af5cf | 151 | unsigned int header_len = 0; |
c6c8fea2 | 152 | int data_len = skb->len, ret; |
7a5cc242 | 153 | short vid __maybe_unused = -1; |
be7af5cf | 154 | bool do_bcast = false; |
bbb1f90e | 155 | uint32_t seqno; |
c6c8fea2 | 156 | |
39c75a51 | 157 | if (atomic_read(&bat_priv->mesh_state) != BATADV_MESH_ACTIVE) |
c6c8fea2 SE |
158 | goto dropped; |
159 | ||
160 | soft_iface->trans_start = jiffies; | |
161 | ||
162 | switch (ntohs(ethhdr->h_proto)) { | |
163 | case ETH_P_8021Q: | |
164 | vhdr = (struct vlan_ethhdr *)skb->data; | |
165 | vid = ntohs(vhdr->h_vlan_TCI) & VLAN_VID_MASK; | |
166 | ||
7e071c79 | 167 | if (vhdr->h_vlan_encapsulated_proto != ethertype) |
c6c8fea2 SE |
168 | break; |
169 | ||
170 | /* fall through */ | |
7e071c79 | 171 | case BATADV_ETH_P_BATMAN: |
c6c8fea2 | 172 | goto dropped; |
a7f6ee94 | 173 | } |
c6c8fea2 | 174 | |
08adf151 | 175 | if (batadv_bla_tx(bat_priv, skb, vid)) |
23721387 SW |
176 | goto dropped; |
177 | ||
a73105b8 | 178 | /* Register the client MAC in the transtable */ |
08c36d3e | 179 | batadv_tt_local_add(soft_iface, ethhdr->h_source, skb->skb_iif); |
c6c8fea2 | 180 | |
b1a8c04b SW |
181 | /* don't accept stp packets. STP does not help in meshes. |
182 | * better use the bridge loop avoidance ... | |
183 | */ | |
1eda58bf | 184 | if (batadv_compare_eth(ethhdr->h_dest, stp_addr)) |
b1a8c04b SW |
185 | goto dropped; |
186 | ||
be7af5cf ML |
187 | if (is_multicast_ether_addr(ethhdr->h_dest)) { |
188 | do_bcast = true; | |
c6c8fea2 | 189 | |
be7af5cf | 190 | switch (atomic_read(&bat_priv->gw_mode)) { |
cd646ab1 | 191 | case BATADV_GW_MODE_SERVER: |
be7af5cf | 192 | /* gateway servers should not send dhcp |
9cfc7bd6 SE |
193 | * requests into the mesh |
194 | */ | |
7cf06bc6 | 195 | ret = batadv_gw_is_dhcp_target(skb, &header_len); |
be7af5cf ML |
196 | if (ret) |
197 | goto dropped; | |
198 | break; | |
cd646ab1 | 199 | case BATADV_GW_MODE_CLIENT: |
be7af5cf | 200 | /* gateway clients should send dhcp requests |
9cfc7bd6 SE |
201 | * via unicast to their gateway |
202 | */ | |
7cf06bc6 | 203 | ret = batadv_gw_is_dhcp_target(skb, &header_len); |
be7af5cf ML |
204 | if (ret) |
205 | do_bcast = false; | |
206 | break; | |
cd646ab1 | 207 | case BATADV_GW_MODE_OFF: |
be7af5cf ML |
208 | default: |
209 | break; | |
210 | } | |
c6c8fea2 SE |
211 | } |
212 | ||
213 | /* ethernet packet should be broadcasted */ | |
214 | if (do_bcast) { | |
e5d89254 | 215 | primary_if = batadv_primary_if_get_selected(bat_priv); |
32ae9b22 | 216 | if (!primary_if) |
c6c8fea2 SE |
217 | goto dropped; |
218 | ||
04b482a2 | 219 | if (batadv_skb_head_push(skb, sizeof(*bcast_packet)) < 0) |
c6c8fea2 SE |
220 | goto dropped; |
221 | ||
96412690 | 222 | bcast_packet = (struct batadv_bcast_packet *)skb->data; |
7e071c79 | 223 | bcast_packet->header.version = BATADV_COMPAT_VERSION; |
42d0b044 | 224 | bcast_packet->header.ttl = BATADV_TTL; |
c6c8fea2 SE |
225 | |
226 | /* batman packet type: broadcast */ | |
acd34afa | 227 | bcast_packet->header.packet_type = BATADV_BCAST; |
162d549c | 228 | bcast_packet->reserved = 0; |
c6c8fea2 SE |
229 | |
230 | /* hw address of first interface is the orig mac because only | |
9cfc7bd6 SE |
231 | * this mac is known throughout the mesh |
232 | */ | |
c6c8fea2 | 233 | memcpy(bcast_packet->orig, |
32ae9b22 | 234 | primary_if->net_dev->dev_addr, ETH_ALEN); |
c6c8fea2 SE |
235 | |
236 | /* set broadcast sequence number */ | |
bbb1f90e SE |
237 | seqno = atomic_inc_return(&bat_priv->bcast_seqno); |
238 | bcast_packet->seqno = htonl(seqno); | |
c6c8fea2 | 239 | |
9455e34c | 240 | batadv_add_bcast_packet_to_list(bat_priv, skb, 1); |
c6c8fea2 SE |
241 | |
242 | /* a copy is stored in the bcast list, therefore removing | |
9cfc7bd6 SE |
243 | * the original skb. |
244 | */ | |
c6c8fea2 SE |
245 | kfree_skb(skb); |
246 | ||
247 | /* unicast packet */ | |
248 | } else { | |
cd646ab1 | 249 | if (atomic_read(&bat_priv->gw_mode) != BATADV_GW_MODE_OFF) { |
7cf06bc6 | 250 | ret = batadv_gw_out_of_range(bat_priv, skb, ethhdr); |
be7af5cf ML |
251 | if (ret) |
252 | goto dropped; | |
253 | } | |
254 | ||
88ed1e77 | 255 | ret = batadv_unicast_send_skb(skb, bat_priv); |
c6c8fea2 SE |
256 | if (ret != 0) |
257 | goto dropped_freed; | |
258 | } | |
259 | ||
1c9b0550 ML |
260 | batadv_inc_counter(bat_priv, BATADV_CNT_TX); |
261 | batadv_add_counter(bat_priv, BATADV_CNT_TX_BYTES, data_len); | |
c6c8fea2 SE |
262 | goto end; |
263 | ||
264 | dropped: | |
265 | kfree_skb(skb); | |
266 | dropped_freed: | |
1c9b0550 | 267 | batadv_inc_counter(bat_priv, BATADV_CNT_TX_DROPPED); |
c6c8fea2 | 268 | end: |
32ae9b22 | 269 | if (primary_if) |
e5d89254 | 270 | batadv_hardif_free_ref(primary_if); |
c6c8fea2 SE |
271 | return NETDEV_TX_OK; |
272 | } | |
273 | ||
04b482a2 | 274 | void batadv_interface_rx(struct net_device *soft_iface, |
56303d34 | 275 | struct sk_buff *skb, struct batadv_hard_iface *recv_if, |
37135173 | 276 | int hdr_size, struct batadv_orig_node *orig_node) |
c6c8fea2 | 277 | { |
56303d34 | 278 | struct batadv_priv *bat_priv = netdev_priv(soft_iface); |
c6c8fea2 SE |
279 | struct ethhdr *ethhdr; |
280 | struct vlan_ethhdr *vhdr; | |
04c9f416 | 281 | struct batadv_header *batadv_header = (struct batadv_header *)skb->data; |
7a5cc242 | 282 | short vid __maybe_unused = -1; |
7e071c79 | 283 | __be16 ethertype = __constant_htons(BATADV_ETH_P_BATMAN); |
2d3f6ccc SW |
284 | bool is_bcast; |
285 | ||
04c9f416 | 286 | is_bcast = (batadv_header->packet_type == BATADV_BCAST); |
c6c8fea2 SE |
287 | |
288 | /* check if enough space is available for pulling, and pull */ | |
289 | if (!pskb_may_pull(skb, hdr_size)) | |
290 | goto dropped; | |
291 | ||
292 | skb_pull_rcsum(skb, hdr_size); | |
293 | skb_reset_mac_header(skb); | |
294 | ||
295 | ethhdr = (struct ethhdr *)skb_mac_header(skb); | |
296 | ||
297 | switch (ntohs(ethhdr->h_proto)) { | |
298 | case ETH_P_8021Q: | |
299 | vhdr = (struct vlan_ethhdr *)skb->data; | |
300 | vid = ntohs(vhdr->h_vlan_TCI) & VLAN_VID_MASK; | |
301 | ||
7e071c79 | 302 | if (vhdr->h_vlan_encapsulated_proto != ethertype) |
c6c8fea2 SE |
303 | break; |
304 | ||
305 | /* fall through */ | |
7e071c79 | 306 | case BATADV_ETH_P_BATMAN: |
c6c8fea2 SE |
307 | goto dropped; |
308 | } | |
309 | ||
c6c8fea2 SE |
310 | /* skb->dev & skb->pkt_type are set here */ |
311 | if (unlikely(!pskb_may_pull(skb, ETH_HLEN))) | |
312 | goto dropped; | |
313 | skb->protocol = eth_type_trans(skb, soft_iface); | |
314 | ||
25985edc | 315 | /* should not be necessary anymore as we use skb_pull_rcsum() |
c6c8fea2 | 316 | * TODO: please verify this and remove this TODO |
9cfc7bd6 SE |
317 | * -- Dec 21st 2009, Simon Wunderlich |
318 | */ | |
c6c8fea2 | 319 | |
9cfc7bd6 | 320 | /* skb->ip_summed = CHECKSUM_UNNECESSARY; */ |
c6c8fea2 | 321 | |
1c9b0550 ML |
322 | batadv_inc_counter(bat_priv, BATADV_CNT_RX); |
323 | batadv_add_counter(bat_priv, BATADV_CNT_RX_BYTES, | |
324 | skb->len + ETH_HLEN); | |
c6c8fea2 SE |
325 | |
326 | soft_iface->last_rx = jiffies; | |
327 | ||
37135173 AQ |
328 | if (orig_node) |
329 | batadv_tt_add_temporary_global_entry(bat_priv, orig_node, | |
330 | ethhdr->h_source); | |
331 | ||
08c36d3e | 332 | if (batadv_is_ap_isolated(bat_priv, ethhdr->h_source, ethhdr->h_dest)) |
59b699cd AQ |
333 | goto dropped; |
334 | ||
23721387 SW |
335 | /* Let the bridge loop avoidance check the packet. If will |
336 | * not handle it, we can safely push it up. | |
337 | */ | |
04c9f416 | 338 | if (batadv_bla_rx(bat_priv, skb, vid, is_bcast)) |
23721387 SW |
339 | goto out; |
340 | ||
c6c8fea2 | 341 | netif_rx(skb); |
ba85fac2 | 342 | goto out; |
c6c8fea2 SE |
343 | |
344 | dropped: | |
345 | kfree_skb(skb); | |
346 | out: | |
347 | return; | |
348 | } | |
349 | ||
0294ca0d SE |
350 | static const struct net_device_ops batadv_netdev_ops = { |
351 | .ndo_open = batadv_interface_open, | |
352 | .ndo_stop = batadv_interface_release, | |
353 | .ndo_get_stats = batadv_interface_stats, | |
354 | .ndo_set_mac_address = batadv_interface_set_mac_addr, | |
355 | .ndo_change_mtu = batadv_interface_change_mtu, | |
356 | .ndo_start_xmit = batadv_interface_tx, | |
c6c8fea2 SE |
357 | .ndo_validate_addr = eth_validate_addr |
358 | }; | |
c6c8fea2 | 359 | |
0294ca0d | 360 | static void batadv_interface_setup(struct net_device *dev) |
c6c8fea2 | 361 | { |
56303d34 | 362 | struct batadv_priv *priv = netdev_priv(dev); |
c6c8fea2 SE |
363 | |
364 | ether_setup(dev); | |
365 | ||
0294ca0d | 366 | dev->netdev_ops = &batadv_netdev_ops; |
c6c8fea2 | 367 | dev->destructor = free_netdev; |
af20b710 | 368 | dev->tx_queue_len = 0; |
c6c8fea2 | 369 | |
9cfc7bd6 | 370 | /* can't call min_mtu, because the needed variables |
c6c8fea2 SE |
371 | * have not been initialized yet |
372 | */ | |
373 | dev->mtu = ETH_DATA_LEN; | |
6e215fd8 | 374 | /* reserve more space in the skbuff for our header */ |
c11fdfae | 375 | dev->hard_header_len = BATADV_HEADER_LEN; |
c6c8fea2 SE |
376 | |
377 | /* generate random address */ | |
28009a6c | 378 | eth_hw_addr_random(dev); |
c6c8fea2 | 379 | |
0294ca0d | 380 | SET_ETHTOOL_OPS(dev, &batadv_ethtool_ops); |
c6c8fea2 | 381 | |
704509b8 | 382 | memset(priv, 0, sizeof(*priv)); |
c6c8fea2 SE |
383 | } |
384 | ||
04b482a2 | 385 | struct net_device *batadv_softif_create(const char *name) |
c6c8fea2 SE |
386 | { |
387 | struct net_device *soft_iface; | |
56303d34 | 388 | struct batadv_priv *bat_priv; |
c6c8fea2 | 389 | int ret; |
d69909d2 | 390 | size_t cnt_len = sizeof(uint64_t) * BATADV_CNT_NUM; |
c6c8fea2 | 391 | |
0294ca0d SE |
392 | soft_iface = alloc_netdev(sizeof(*bat_priv), name, |
393 | batadv_interface_setup); | |
c6c8fea2 | 394 | |
320f422f | 395 | if (!soft_iface) |
c6c8fea2 | 396 | goto out; |
c6c8fea2 | 397 | |
1c9b0550 ML |
398 | bat_priv = netdev_priv(soft_iface); |
399 | ||
400 | /* batadv_interface_stats() needs to be available as soon as | |
401 | * register_netdevice() has been called | |
402 | */ | |
403 | bat_priv->bat_counters = __alloc_percpu(cnt_len, __alignof__(uint64_t)); | |
404 | if (!bat_priv->bat_counters) | |
405 | goto free_soft_iface; | |
406 | ||
c3caf519 | 407 | ret = register_netdevice(soft_iface); |
c6c8fea2 SE |
408 | if (ret < 0) { |
409 | pr_err("Unable to register the batman interface '%s': %i\n", | |
410 | name, ret); | |
1c9b0550 | 411 | goto free_bat_counters; |
c6c8fea2 SE |
412 | } |
413 | ||
c6c8fea2 SE |
414 | atomic_set(&bat_priv->aggregated_ogms, 1); |
415 | atomic_set(&bat_priv->bonding, 0); | |
23721387 | 416 | atomic_set(&bat_priv->bridge_loop_avoidance, 0); |
59b699cd | 417 | atomic_set(&bat_priv->ap_isolation, 0); |
acd34afa | 418 | atomic_set(&bat_priv->vis_mode, BATADV_VIS_TYPE_CLIENT_UPDATE); |
cd646ab1 | 419 | atomic_set(&bat_priv->gw_mode, BATADV_GW_MODE_OFF); |
c6c8fea2 SE |
420 | atomic_set(&bat_priv->gw_sel_class, 20); |
421 | atomic_set(&bat_priv->gw_bandwidth, 41); | |
422 | atomic_set(&bat_priv->orig_interval, 1000); | |
8681a1c4 | 423 | atomic_set(&bat_priv->hop_penalty, 30); |
c6c8fea2 SE |
424 | atomic_set(&bat_priv->log_level, 0); |
425 | atomic_set(&bat_priv->fragmentation, 1); | |
42d0b044 SE |
426 | atomic_set(&bat_priv->bcast_queue_left, BATADV_BCAST_QUEUE_LEN); |
427 | atomic_set(&bat_priv->batman_queue_left, BATADV_BATMAN_QUEUE_LEN); | |
c6c8fea2 | 428 | |
39c75a51 | 429 | atomic_set(&bat_priv->mesh_state, BATADV_MESH_INACTIVE); |
c6c8fea2 | 430 | atomic_set(&bat_priv->bcast_seqno, 1); |
807736f6 SE |
431 | atomic_set(&bat_priv->tt.vn, 0); |
432 | atomic_set(&bat_priv->tt.local_changes, 0); | |
433 | atomic_set(&bat_priv->tt.ogm_append_cnt, 0); | |
434 | #ifdef CONFIG_BATMAN_ADV_BLA | |
435 | atomic_set(&bat_priv->bla.num_requests, 0); | |
436 | #endif | |
437 | bat_priv->tt.last_changeset = NULL; | |
438 | bat_priv->tt.last_changeset_len = 0; | |
439 | bat_priv->tt.poss_change = false; | |
c6c8fea2 SE |
440 | |
441 | bat_priv->primary_if = NULL; | |
442 | bat_priv->num_ifaces = 0; | |
c6c8fea2 | 443 | |
3193e8fd | 444 | ret = batadv_algo_select(bat_priv, batadv_routing_algo); |
1c280471 | 445 | if (ret < 0) |
1c9b0550 | 446 | goto unreg_soft_iface; |
1c280471 | 447 | |
5853e22c | 448 | ret = batadv_sysfs_add_meshif(soft_iface); |
c6c8fea2 | 449 | if (ret < 0) |
1c9b0550 | 450 | goto unreg_soft_iface; |
c6c8fea2 | 451 | |
40a072d7 | 452 | ret = batadv_debugfs_add_meshif(soft_iface); |
c6c8fea2 SE |
453 | if (ret < 0) |
454 | goto unreg_sysfs; | |
455 | ||
3193e8fd | 456 | ret = batadv_mesh_init(soft_iface); |
c6c8fea2 SE |
457 | if (ret < 0) |
458 | goto unreg_debugfs; | |
459 | ||
460 | return soft_iface; | |
461 | ||
462 | unreg_debugfs: | |
40a072d7 | 463 | batadv_debugfs_del_meshif(soft_iface); |
c6c8fea2 | 464 | unreg_sysfs: |
5853e22c | 465 | batadv_sysfs_del_meshif(soft_iface); |
c6c8fea2 | 466 | unreg_soft_iface: |
1c9b0550 | 467 | free_percpu(bat_priv->bat_counters); |
06ba7ce2 | 468 | unregister_netdevice(soft_iface); |
c6c8fea2 SE |
469 | return NULL; |
470 | ||
1c9b0550 ML |
471 | free_bat_counters: |
472 | free_percpu(bat_priv->bat_counters); | |
c6c8fea2 SE |
473 | free_soft_iface: |
474 | free_netdev(soft_iface); | |
475 | out: | |
476 | return NULL; | |
477 | } | |
478 | ||
04b482a2 | 479 | void batadv_softif_destroy(struct net_device *soft_iface) |
c6c8fea2 | 480 | { |
40a072d7 | 481 | batadv_debugfs_del_meshif(soft_iface); |
5853e22c | 482 | batadv_sysfs_del_meshif(soft_iface); |
3193e8fd | 483 | batadv_mesh_free(soft_iface); |
c6c8fea2 SE |
484 | unregister_netdevice(soft_iface); |
485 | } | |
486 | ||
04b482a2 | 487 | int batadv_softif_is_valid(const struct net_device *net_dev) |
e44d8fe2 | 488 | { |
0294ca0d | 489 | if (net_dev->netdev_ops->ndo_start_xmit == batadv_interface_tx) |
e44d8fe2 | 490 | return 1; |
e44d8fe2 SE |
491 | |
492 | return 0; | |
493 | } | |
494 | ||
c6c8fea2 | 495 | /* ethtool */ |
0294ca0d | 496 | static int batadv_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) |
c6c8fea2 SE |
497 | { |
498 | cmd->supported = 0; | |
499 | cmd->advertising = 0; | |
70739497 | 500 | ethtool_cmd_speed_set(cmd, SPEED_10); |
c6c8fea2 SE |
501 | cmd->duplex = DUPLEX_FULL; |
502 | cmd->port = PORT_TP; | |
503 | cmd->phy_address = 0; | |
504 | cmd->transceiver = XCVR_INTERNAL; | |
505 | cmd->autoneg = AUTONEG_DISABLE; | |
506 | cmd->maxtxpkt = 0; | |
507 | cmd->maxrxpkt = 0; | |
508 | ||
509 | return 0; | |
510 | } | |
511 | ||
0294ca0d SE |
512 | static void batadv_get_drvinfo(struct net_device *dev, |
513 | struct ethtool_drvinfo *info) | |
c6c8fea2 SE |
514 | { |
515 | strcpy(info->driver, "B.A.T.M.A.N. advanced"); | |
42d0b044 | 516 | strcpy(info->version, BATADV_SOURCE_VERSION); |
c6c8fea2 SE |
517 | strcpy(info->fw_version, "N/A"); |
518 | strcpy(info->bus_info, "batman"); | |
519 | } | |
520 | ||
0294ca0d | 521 | static u32 batadv_get_msglevel(struct net_device *dev) |
c6c8fea2 SE |
522 | { |
523 | return -EOPNOTSUPP; | |
524 | } | |
525 | ||
0294ca0d | 526 | static void batadv_set_msglevel(struct net_device *dev, u32 value) |
c6c8fea2 SE |
527 | { |
528 | } | |
529 | ||
0294ca0d | 530 | static u32 batadv_get_link(struct net_device *dev) |
c6c8fea2 SE |
531 | { |
532 | return 1; | |
533 | } | |
f8214865 MH |
534 | |
535 | /* Inspired by drivers/net/ethernet/dlink/sundance.c:1702 | |
536 | * Declare each description string in struct.name[] to get fixed sized buffer | |
537 | * and compile time checking for strings longer than ETH_GSTRING_LEN. | |
538 | */ | |
539 | static const struct { | |
540 | const char name[ETH_GSTRING_LEN]; | |
0294ca0d | 541 | } batadv_counters_strings[] = { |
1c9b0550 ML |
542 | { "tx" }, |
543 | { "tx_bytes" }, | |
544 | { "tx_dropped" }, | |
545 | { "rx" }, | |
546 | { "rx_bytes" }, | |
f8214865 MH |
547 | { "forward" }, |
548 | { "forward_bytes" }, | |
549 | { "mgmt_tx" }, | |
550 | { "mgmt_tx_bytes" }, | |
551 | { "mgmt_rx" }, | |
552 | { "mgmt_rx_bytes" }, | |
553 | { "tt_request_tx" }, | |
554 | { "tt_request_rx" }, | |
555 | { "tt_response_tx" }, | |
556 | { "tt_response_rx" }, | |
557 | { "tt_roam_adv_tx" }, | |
558 | { "tt_roam_adv_rx" }, | |
559 | }; | |
560 | ||
561 | static void batadv_get_strings(struct net_device *dev, uint32_t stringset, | |
562 | uint8_t *data) | |
563 | { | |
564 | if (stringset == ETH_SS_STATS) | |
0294ca0d SE |
565 | memcpy(data, batadv_counters_strings, |
566 | sizeof(batadv_counters_strings)); | |
f8214865 MH |
567 | } |
568 | ||
569 | static void batadv_get_ethtool_stats(struct net_device *dev, | |
570 | struct ethtool_stats *stats, | |
571 | uint64_t *data) | |
572 | { | |
56303d34 | 573 | struct batadv_priv *bat_priv = netdev_priv(dev); |
f8214865 MH |
574 | int i; |
575 | ||
d69909d2 | 576 | for (i = 0; i < BATADV_CNT_NUM; i++) |
f8214865 MH |
577 | data[i] = batadv_sum_counter(bat_priv, i); |
578 | } | |
579 | ||
580 | static int batadv_get_sset_count(struct net_device *dev, int stringset) | |
581 | { | |
582 | if (stringset == ETH_SS_STATS) | |
d69909d2 | 583 | return BATADV_CNT_NUM; |
f8214865 MH |
584 | |
585 | return -EOPNOTSUPP; | |
586 | } |