2 * Copyright (C) 2007-2011 B.A.T.M.A.N. contributors:
4 * Marek Lindner, Simon Wunderlich
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.
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.
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
23 #include "soft-interface.h"
24 #include "hard-interface.h"
27 #include "bat_debugfs.h"
28 #include "translation-table.h"
30 #include "gateway_common.h"
31 #include "gateway_client.h"
32 #include "bat_sysfs.h"
33 #include <linux/slab.h>
34 #include <linux/ethtool.h>
35 #include <linux/etherdevice.h>
36 #include <linux/if_vlan.h>
40 static int bat_get_settings(struct net_device
*dev
, struct ethtool_cmd
*cmd
);
41 static void bat_get_drvinfo(struct net_device
*dev
,
42 struct ethtool_drvinfo
*info
);
43 static u32
bat_get_msglevel(struct net_device
*dev
);
44 static void bat_set_msglevel(struct net_device
*dev
, u32 value
);
45 static u32
bat_get_link(struct net_device
*dev
);
47 static const struct ethtool_ops bat_ethtool_ops
= {
48 .get_settings
= bat_get_settings
,
49 .get_drvinfo
= bat_get_drvinfo
,
50 .get_msglevel
= bat_get_msglevel
,
51 .set_msglevel
= bat_set_msglevel
,
52 .get_link
= bat_get_link
,
55 int my_skb_head_push(struct sk_buff
*skb
, unsigned int len
)
60 * TODO: We must check if we can release all references to non-payload
61 * data using skb_header_release in our skbs to allow skb_cow_header to
62 * work optimally. This means that those skbs are not allowed to read
63 * or write any data which is before the current position of skb->data
64 * after that call and thus allow other skbs with the same data buffer
65 * to write freely in that area.
67 result
= skb_cow_head(skb
, len
);
75 static void softif_neigh_free_ref(struct softif_neigh
*softif_neigh
)
77 if (atomic_dec_and_test(&softif_neigh
->refcount
))
78 kfree_rcu(softif_neigh
, rcu
);
81 static void softif_neigh_vid_free_rcu(struct rcu_head
*rcu
)
83 struct softif_neigh_vid
*softif_neigh_vid
;
84 struct softif_neigh
*softif_neigh
;
85 struct hlist_node
*node
, *node_tmp
;
86 struct bat_priv
*bat_priv
;
88 softif_neigh_vid
= container_of(rcu
, struct softif_neigh_vid
, rcu
);
89 bat_priv
= softif_neigh_vid
->bat_priv
;
91 spin_lock_bh(&bat_priv
->softif_neigh_lock
);
92 hlist_for_each_entry_safe(softif_neigh
, node
, node_tmp
,
93 &softif_neigh_vid
->softif_neigh_list
, list
) {
94 hlist_del_rcu(&softif_neigh
->list
);
95 softif_neigh_free_ref(softif_neigh
);
97 spin_unlock_bh(&bat_priv
->softif_neigh_lock
);
99 kfree(softif_neigh_vid
);
102 static void softif_neigh_vid_free_ref(struct softif_neigh_vid
*softif_neigh_vid
)
104 if (atomic_dec_and_test(&softif_neigh_vid
->refcount
))
105 call_rcu(&softif_neigh_vid
->rcu
, softif_neigh_vid_free_rcu
);
108 static struct softif_neigh_vid
*softif_neigh_vid_get(struct bat_priv
*bat_priv
,
111 struct softif_neigh_vid
*softif_neigh_vid
;
112 struct hlist_node
*node
;
115 hlist_for_each_entry_rcu(softif_neigh_vid
, node
,
116 &bat_priv
->softif_neigh_vids
, list
) {
117 if (softif_neigh_vid
->vid
!= vid
)
120 if (!atomic_inc_not_zero(&softif_neigh_vid
->refcount
))
126 softif_neigh_vid
= kzalloc(sizeof(*softif_neigh_vid
), GFP_ATOMIC
);
127 if (!softif_neigh_vid
)
130 softif_neigh_vid
->vid
= vid
;
131 softif_neigh_vid
->bat_priv
= bat_priv
;
133 /* initialize with 2 - caller decrements counter by one */
134 atomic_set(&softif_neigh_vid
->refcount
, 2);
135 INIT_HLIST_HEAD(&softif_neigh_vid
->softif_neigh_list
);
136 INIT_HLIST_NODE(&softif_neigh_vid
->list
);
137 spin_lock_bh(&bat_priv
->softif_neigh_vid_lock
);
138 hlist_add_head_rcu(&softif_neigh_vid
->list
,
139 &bat_priv
->softif_neigh_vids
);
140 spin_unlock_bh(&bat_priv
->softif_neigh_vid_lock
);
144 return softif_neigh_vid
;
147 static struct softif_neigh
*softif_neigh_get(struct bat_priv
*bat_priv
,
148 const uint8_t *addr
, short vid
)
150 struct softif_neigh_vid
*softif_neigh_vid
;
151 struct softif_neigh
*softif_neigh
= NULL
;
152 struct hlist_node
*node
;
154 softif_neigh_vid
= softif_neigh_vid_get(bat_priv
, vid
);
155 if (!softif_neigh_vid
)
159 hlist_for_each_entry_rcu(softif_neigh
, node
,
160 &softif_neigh_vid
->softif_neigh_list
,
162 if (!compare_eth(softif_neigh
->addr
, addr
))
165 if (!atomic_inc_not_zero(&softif_neigh
->refcount
))
168 softif_neigh
->last_seen
= jiffies
;
172 softif_neigh
= kzalloc(sizeof(*softif_neigh
), GFP_ATOMIC
);
176 memcpy(softif_neigh
->addr
, addr
, ETH_ALEN
);
177 softif_neigh
->last_seen
= jiffies
;
178 /* initialize with 2 - caller decrements counter by one */
179 atomic_set(&softif_neigh
->refcount
, 2);
181 INIT_HLIST_NODE(&softif_neigh
->list
);
182 spin_lock_bh(&bat_priv
->softif_neigh_lock
);
183 hlist_add_head_rcu(&softif_neigh
->list
,
184 &softif_neigh_vid
->softif_neigh_list
);
185 spin_unlock_bh(&bat_priv
->softif_neigh_lock
);
190 if (softif_neigh_vid
)
191 softif_neigh_vid_free_ref(softif_neigh_vid
);
195 static struct softif_neigh
*softif_neigh_get_selected(
196 struct softif_neigh_vid
*softif_neigh_vid
)
198 struct softif_neigh
*softif_neigh
;
201 softif_neigh
= rcu_dereference(softif_neigh_vid
->softif_neigh
);
203 if (softif_neigh
&& !atomic_inc_not_zero(&softif_neigh
->refcount
))
210 static struct softif_neigh
*softif_neigh_vid_get_selected(
211 struct bat_priv
*bat_priv
,
214 struct softif_neigh_vid
*softif_neigh_vid
;
215 struct softif_neigh
*softif_neigh
= NULL
;
217 softif_neigh_vid
= softif_neigh_vid_get(bat_priv
, vid
);
218 if (!softif_neigh_vid
)
221 softif_neigh
= softif_neigh_get_selected(softif_neigh_vid
);
223 if (softif_neigh_vid
)
224 softif_neigh_vid_free_ref(softif_neigh_vid
);
228 static void softif_neigh_vid_select(struct bat_priv
*bat_priv
,
229 struct softif_neigh
*new_neigh
,
232 struct softif_neigh_vid
*softif_neigh_vid
;
233 struct softif_neigh
*curr_neigh
;
235 softif_neigh_vid
= softif_neigh_vid_get(bat_priv
, vid
);
236 if (!softif_neigh_vid
)
239 spin_lock_bh(&bat_priv
->softif_neigh_lock
);
241 if (new_neigh
&& !atomic_inc_not_zero(&new_neigh
->refcount
))
244 curr_neigh
= softif_neigh_vid
->softif_neigh
;
245 rcu_assign_pointer(softif_neigh_vid
->softif_neigh
, new_neigh
);
247 if ((curr_neigh
) && (!new_neigh
))
248 bat_dbg(DBG_ROUTES
, bat_priv
,
249 "Removing mesh exit point on vid: %d (prev: %pM).\n",
250 vid
, curr_neigh
->addr
);
251 else if ((curr_neigh
) && (new_neigh
))
252 bat_dbg(DBG_ROUTES
, bat_priv
,
253 "Changing mesh exit point on vid: %d from %pM "
254 "to %pM.\n", vid
, curr_neigh
->addr
, new_neigh
->addr
);
255 else if ((!curr_neigh
) && (new_neigh
))
256 bat_dbg(DBG_ROUTES
, bat_priv
,
257 "Setting mesh exit point on vid: %d to %pM.\n",
258 vid
, new_neigh
->addr
);
261 softif_neigh_free_ref(curr_neigh
);
263 spin_unlock_bh(&bat_priv
->softif_neigh_lock
);
266 if (softif_neigh_vid
)
267 softif_neigh_vid_free_ref(softif_neigh_vid
);
270 static void softif_neigh_vid_deselect(struct bat_priv
*bat_priv
,
271 struct softif_neigh_vid
*softif_neigh_vid
)
273 struct softif_neigh
*curr_neigh
;
274 struct softif_neigh
*softif_neigh
= NULL
, *softif_neigh_tmp
;
275 struct hard_iface
*primary_if
= NULL
;
276 struct hlist_node
*node
;
278 primary_if
= primary_if_get_selected(bat_priv
);
282 /* find new softif_neigh immediately to avoid temporary loops */
284 curr_neigh
= rcu_dereference(softif_neigh_vid
->softif_neigh
);
286 hlist_for_each_entry_rcu(softif_neigh_tmp
, node
,
287 &softif_neigh_vid
->softif_neigh_list
,
289 if (softif_neigh_tmp
== curr_neigh
)
292 /* we got a neighbor but its mac is 'bigger' than ours */
293 if (memcmp(primary_if
->net_dev
->dev_addr
,
294 softif_neigh_tmp
->addr
, ETH_ALEN
) < 0)
297 if (!atomic_inc_not_zero(&softif_neigh_tmp
->refcount
))
300 softif_neigh
= softif_neigh_tmp
;
307 softif_neigh_vid_select(bat_priv
, softif_neigh
, softif_neigh_vid
->vid
);
310 hardif_free_ref(primary_if
);
312 softif_neigh_free_ref(softif_neigh
);
315 int softif_neigh_seq_print_text(struct seq_file
*seq
, void *offset
)
317 struct net_device
*net_dev
= (struct net_device
*)seq
->private;
318 struct bat_priv
*bat_priv
= netdev_priv(net_dev
);
319 struct softif_neigh_vid
*softif_neigh_vid
;
320 struct softif_neigh
*softif_neigh
;
321 struct hard_iface
*primary_if
;
322 struct hlist_node
*node
, *node_tmp
;
323 struct softif_neigh
*curr_softif_neigh
;
324 int ret
= 0, last_seen_secs
, last_seen_msecs
;
326 primary_if
= primary_if_get_selected(bat_priv
);
328 ret
= seq_printf(seq
, "BATMAN mesh %s disabled - "
329 "please specify interfaces to enable it\n",
334 if (primary_if
->if_status
!= IF_ACTIVE
) {
335 ret
= seq_printf(seq
, "BATMAN mesh %s "
336 "disabled - primary interface not active\n",
341 seq_printf(seq
, "Softif neighbor list (%s)\n", net_dev
->name
);
344 hlist_for_each_entry_rcu(softif_neigh_vid
, node
,
345 &bat_priv
->softif_neigh_vids
, list
) {
346 seq_printf(seq
, " %-15s %s on vid: %d\n",
347 "Originator", "last-seen", softif_neigh_vid
->vid
);
349 curr_softif_neigh
= softif_neigh_get_selected(softif_neigh_vid
);
351 hlist_for_each_entry_rcu(softif_neigh
, node_tmp
,
352 &softif_neigh_vid
->softif_neigh_list
,
354 last_seen_secs
= jiffies_to_msecs(jiffies
-
355 softif_neigh
->last_seen
) / 1000;
356 last_seen_msecs
= jiffies_to_msecs(jiffies
-
357 softif_neigh
->last_seen
) % 1000;
358 seq_printf(seq
, "%s %pM %3i.%03is\n",
359 curr_softif_neigh
== softif_neigh
360 ? "=>" : " ", softif_neigh
->addr
,
361 last_seen_secs
, last_seen_msecs
);
364 if (curr_softif_neigh
)
365 softif_neigh_free_ref(curr_softif_neigh
);
367 seq_printf(seq
, "\n");
373 hardif_free_ref(primary_if
);
377 void softif_neigh_purge(struct bat_priv
*bat_priv
)
379 struct softif_neigh
*softif_neigh
, *curr_softif_neigh
;
380 struct softif_neigh_vid
*softif_neigh_vid
;
381 struct hlist_node
*node
, *node_tmp
, *node_tmp2
;
385 hlist_for_each_entry_rcu(softif_neigh_vid
, node
,
386 &bat_priv
->softif_neigh_vids
, list
) {
387 if (!atomic_inc_not_zero(&softif_neigh_vid
->refcount
))
390 curr_softif_neigh
= softif_neigh_get_selected(softif_neigh_vid
);
393 spin_lock_bh(&bat_priv
->softif_neigh_lock
);
394 hlist_for_each_entry_safe(softif_neigh
, node_tmp
, node_tmp2
,
395 &softif_neigh_vid
->softif_neigh_list
,
397 if ((!time_after(jiffies
, softif_neigh
->last_seen
+
398 msecs_to_jiffies(SOFTIF_NEIGH_TIMEOUT
))) &&
399 (atomic_read(&bat_priv
->mesh_state
) == MESH_ACTIVE
))
402 if (curr_softif_neigh
== softif_neigh
) {
403 bat_dbg(DBG_ROUTES
, bat_priv
,
404 "Current mesh exit point on vid: %d "
406 softif_neigh_vid
->vid
,
411 hlist_del_rcu(&softif_neigh
->list
);
412 softif_neigh_free_ref(softif_neigh
);
414 spin_unlock_bh(&bat_priv
->softif_neigh_lock
);
416 /* soft_neigh_vid_deselect() needs to acquire the
417 * softif_neigh_lock */
419 softif_neigh_vid_deselect(bat_priv
, softif_neigh_vid
);
421 if (curr_softif_neigh
)
422 softif_neigh_free_ref(curr_softif_neigh
);
424 softif_neigh_vid_free_ref(softif_neigh_vid
);
428 spin_lock_bh(&bat_priv
->softif_neigh_vid_lock
);
429 hlist_for_each_entry_safe(softif_neigh_vid
, node
, node_tmp
,
430 &bat_priv
->softif_neigh_vids
, list
) {
431 if (!hlist_empty(&softif_neigh_vid
->softif_neigh_list
))
434 hlist_del_rcu(&softif_neigh_vid
->list
);
435 softif_neigh_vid_free_ref(softif_neigh_vid
);
437 spin_unlock_bh(&bat_priv
->softif_neigh_vid_lock
);
441 static void softif_batman_recv(struct sk_buff
*skb
, struct net_device
*dev
,
444 struct bat_priv
*bat_priv
= netdev_priv(dev
);
445 struct ethhdr
*ethhdr
= (struct ethhdr
*)skb
->data
;
446 struct batman_packet
*batman_packet
;
447 struct softif_neigh
*softif_neigh
= NULL
;
448 struct hard_iface
*primary_if
= NULL
;
449 struct softif_neigh
*curr_softif_neigh
= NULL
;
451 if (ntohs(ethhdr
->h_proto
) == ETH_P_8021Q
)
452 batman_packet
= (struct batman_packet
*)
453 (skb
->data
+ ETH_HLEN
+ VLAN_HLEN
);
455 batman_packet
= (struct batman_packet
*)(skb
->data
+ ETH_HLEN
);
457 if (batman_packet
->version
!= COMPAT_VERSION
)
460 if (batman_packet
->packet_type
!= BAT_PACKET
)
463 if (!(batman_packet
->flags
& PRIMARIES_FIRST_HOP
))
466 if (is_my_mac(batman_packet
->orig
))
469 softif_neigh
= softif_neigh_get(bat_priv
, batman_packet
->orig
, vid
);
473 curr_softif_neigh
= softif_neigh_vid_get_selected(bat_priv
, vid
);
474 if (curr_softif_neigh
== softif_neigh
)
477 primary_if
= primary_if_get_selected(bat_priv
);
481 /* we got a neighbor but its mac is 'bigger' than ours */
482 if (memcmp(primary_if
->net_dev
->dev_addr
,
483 softif_neigh
->addr
, ETH_ALEN
) < 0)
486 /* close own batX device and use softif_neigh as exit node */
487 if (!curr_softif_neigh
) {
488 softif_neigh_vid_select(bat_priv
, softif_neigh
, vid
);
492 /* switch to new 'smallest neighbor' */
493 if (memcmp(softif_neigh
->addr
, curr_softif_neigh
->addr
, ETH_ALEN
) < 0)
494 softif_neigh_vid_select(bat_priv
, softif_neigh
, vid
);
499 softif_neigh_free_ref(softif_neigh
);
500 if (curr_softif_neigh
)
501 softif_neigh_free_ref(curr_softif_neigh
);
503 hardif_free_ref(primary_if
);
507 static int interface_open(struct net_device
*dev
)
509 netif_start_queue(dev
);
513 static int interface_release(struct net_device
*dev
)
515 netif_stop_queue(dev
);
519 static struct net_device_stats
*interface_stats(struct net_device
*dev
)
521 struct bat_priv
*bat_priv
= netdev_priv(dev
);
522 return &bat_priv
->stats
;
525 static int interface_set_mac_addr(struct net_device
*dev
, void *p
)
527 struct bat_priv
*bat_priv
= netdev_priv(dev
);
528 struct sockaddr
*addr
= p
;
530 if (!is_valid_ether_addr(addr
->sa_data
))
531 return -EADDRNOTAVAIL
;
533 /* only modify transtable if it has been initialised before */
534 if (atomic_read(&bat_priv
->mesh_state
) == MESH_ACTIVE
) {
535 tt_local_remove(bat_priv
, dev
->dev_addr
,
536 "mac address changed");
537 tt_local_add(dev
, addr
->sa_data
);
540 memcpy(dev
->dev_addr
, addr
->sa_data
, ETH_ALEN
);
544 static int interface_change_mtu(struct net_device
*dev
, int new_mtu
)
547 if ((new_mtu
< 68) || (new_mtu
> hardif_min_mtu(dev
)))
555 int interface_tx(struct sk_buff
*skb
, struct net_device
*soft_iface
)
557 struct ethhdr
*ethhdr
= (struct ethhdr
*)skb
->data
;
558 struct bat_priv
*bat_priv
= netdev_priv(soft_iface
);
559 struct hard_iface
*primary_if
= NULL
;
560 struct bcast_packet
*bcast_packet
;
561 struct vlan_ethhdr
*vhdr
;
562 struct softif_neigh
*curr_softif_neigh
= NULL
;
563 int data_len
= skb
->len
, ret
;
565 bool do_bcast
= false;
567 if (atomic_read(&bat_priv
->mesh_state
) != MESH_ACTIVE
)
570 soft_iface
->trans_start
= jiffies
;
572 switch (ntohs(ethhdr
->h_proto
)) {
574 vhdr
= (struct vlan_ethhdr
*)skb
->data
;
575 vid
= ntohs(vhdr
->h_vlan_TCI
) & VLAN_VID_MASK
;
577 if (ntohs(vhdr
->h_vlan_encapsulated_proto
) != ETH_P_BATMAN
)
582 softif_batman_recv(skb
, soft_iface
, vid
);
587 * if we have a another chosen mesh exit node in range
588 * it will transport the packets to the mesh
590 curr_softif_neigh
= softif_neigh_vid_get_selected(bat_priv
, vid
);
591 if (curr_softif_neigh
)
594 /* TODO: check this for locks */
595 tt_local_add(soft_iface
, ethhdr
->h_source
);
597 if (is_multicast_ether_addr(ethhdr
->h_dest
)) {
598 ret
= gw_is_target(bat_priv
, skb
);
607 /* ethernet packet should be broadcasted */
609 primary_if
= primary_if_get_selected(bat_priv
);
613 if (my_skb_head_push(skb
, sizeof(*bcast_packet
)) < 0)
616 bcast_packet
= (struct bcast_packet
*)skb
->data
;
617 bcast_packet
->version
= COMPAT_VERSION
;
618 bcast_packet
->ttl
= TTL
;
620 /* batman packet type: broadcast */
621 bcast_packet
->packet_type
= BAT_BCAST
;
623 /* hw address of first interface is the orig mac because only
624 * this mac is known throughout the mesh */
625 memcpy(bcast_packet
->orig
,
626 primary_if
->net_dev
->dev_addr
, ETH_ALEN
);
628 /* set broadcast sequence number */
629 bcast_packet
->seqno
=
630 htonl(atomic_inc_return(&bat_priv
->bcast_seqno
));
632 add_bcast_packet_to_list(bat_priv
, skb
);
634 /* a copy is stored in the bcast list, therefore removing
635 * the original skb. */
640 ret
= unicast_send_skb(skb
, bat_priv
);
645 bat_priv
->stats
.tx_packets
++;
646 bat_priv
->stats
.tx_bytes
+= data_len
;
652 bat_priv
->stats
.tx_dropped
++;
654 if (curr_softif_neigh
)
655 softif_neigh_free_ref(curr_softif_neigh
);
657 hardif_free_ref(primary_if
);
661 void interface_rx(struct net_device
*soft_iface
,
662 struct sk_buff
*skb
, struct hard_iface
*recv_if
,
665 struct bat_priv
*bat_priv
= netdev_priv(soft_iface
);
666 struct unicast_packet
*unicast_packet
;
667 struct ethhdr
*ethhdr
;
668 struct vlan_ethhdr
*vhdr
;
669 struct softif_neigh
*curr_softif_neigh
= NULL
;
673 /* check if enough space is available for pulling, and pull */
674 if (!pskb_may_pull(skb
, hdr_size
))
677 skb_pull_rcsum(skb
, hdr_size
);
678 skb_reset_mac_header(skb
);
680 ethhdr
= (struct ethhdr
*)skb_mac_header(skb
);
682 switch (ntohs(ethhdr
->h_proto
)) {
684 vhdr
= (struct vlan_ethhdr
*)skb
->data
;
685 vid
= ntohs(vhdr
->h_vlan_TCI
) & VLAN_VID_MASK
;
687 if (ntohs(vhdr
->h_vlan_encapsulated_proto
) != ETH_P_BATMAN
)
696 * if we have a another chosen mesh exit node in range
697 * it will transport the packets to the non-mesh network
699 curr_softif_neigh
= softif_neigh_vid_get_selected(bat_priv
, vid
);
700 if (curr_softif_neigh
) {
701 skb_push(skb
, hdr_size
);
702 unicast_packet
= (struct unicast_packet
*)skb
->data
;
704 if ((unicast_packet
->packet_type
!= BAT_UNICAST
) &&
705 (unicast_packet
->packet_type
!= BAT_UNICAST_FRAG
))
708 skb_reset_mac_header(skb
);
710 memcpy(unicast_packet
->dest
,
711 curr_softif_neigh
->addr
, ETH_ALEN
);
712 ret
= route_unicast_packet(skb
, recv_if
);
713 if (ret
== NET_RX_DROP
)
719 /* skb->dev & skb->pkt_type are set here */
720 if (unlikely(!pskb_may_pull(skb
, ETH_HLEN
)))
722 skb
->protocol
= eth_type_trans(skb
, soft_iface
);
724 /* should not be necessary anymore as we use skb_pull_rcsum()
725 * TODO: please verify this and remove this TODO
726 * -- Dec 21st 2009, Simon Wunderlich */
728 /* skb->ip_summed = CHECKSUM_UNNECESSARY;*/
730 bat_priv
->stats
.rx_packets
++;
731 bat_priv
->stats
.rx_bytes
+= skb
->len
+ sizeof(struct ethhdr
);
733 soft_iface
->last_rx
= jiffies
;
741 if (curr_softif_neigh
)
742 softif_neigh_free_ref(curr_softif_neigh
);
746 #ifdef HAVE_NET_DEVICE_OPS
747 static const struct net_device_ops bat_netdev_ops
= {
748 .ndo_open
= interface_open
,
749 .ndo_stop
= interface_release
,
750 .ndo_get_stats
= interface_stats
,
751 .ndo_set_mac_address
= interface_set_mac_addr
,
752 .ndo_change_mtu
= interface_change_mtu
,
753 .ndo_start_xmit
= interface_tx
,
754 .ndo_validate_addr
= eth_validate_addr
758 static void interface_setup(struct net_device
*dev
)
760 struct bat_priv
*priv
= netdev_priv(dev
);
761 char dev_addr
[ETH_ALEN
];
765 #ifdef HAVE_NET_DEVICE_OPS
766 dev
->netdev_ops
= &bat_netdev_ops
;
768 dev
->open
= interface_open
;
769 dev
->stop
= interface_release
;
770 dev
->get_stats
= interface_stats
;
771 dev
->set_mac_address
= interface_set_mac_addr
;
772 dev
->change_mtu
= interface_change_mtu
;
773 dev
->hard_start_xmit
= interface_tx
;
775 dev
->destructor
= free_netdev
;
776 dev
->tx_queue_len
= 0;
779 * can't call min_mtu, because the needed variables
780 * have not been initialized yet
782 dev
->mtu
= ETH_DATA_LEN
;
783 /* reserve more space in the skbuff for our header */
784 dev
->hard_header_len
= BAT_HEADER_LEN
;
786 /* generate random address */
787 random_ether_addr(dev_addr
);
788 memcpy(dev
->dev_addr
, dev_addr
, ETH_ALEN
);
790 SET_ETHTOOL_OPS(dev
, &bat_ethtool_ops
);
792 memset(priv
, 0, sizeof(*priv
));
795 struct net_device
*softif_create(const char *name
)
797 struct net_device
*soft_iface
;
798 struct bat_priv
*bat_priv
;
801 soft_iface
= alloc_netdev(sizeof(*bat_priv
), name
, interface_setup
);
804 pr_err("Unable to allocate the batman interface: %s\n", name
);
808 ret
= register_netdevice(soft_iface
);
810 pr_err("Unable to register the batman interface '%s': %i\n",
812 goto free_soft_iface
;
815 bat_priv
= netdev_priv(soft_iface
);
817 atomic_set(&bat_priv
->aggregated_ogms
, 1);
818 atomic_set(&bat_priv
->bonding
, 0);
819 atomic_set(&bat_priv
->vis_mode
, VIS_TYPE_CLIENT_UPDATE
);
820 atomic_set(&bat_priv
->gw_mode
, GW_MODE_OFF
);
821 atomic_set(&bat_priv
->gw_sel_class
, 20);
822 atomic_set(&bat_priv
->gw_bandwidth
, 41);
823 atomic_set(&bat_priv
->orig_interval
, 1000);
824 atomic_set(&bat_priv
->hop_penalty
, 10);
825 atomic_set(&bat_priv
->log_level
, 0);
826 atomic_set(&bat_priv
->fragmentation
, 1);
827 atomic_set(&bat_priv
->bcast_queue_left
, BCAST_QUEUE_LEN
);
828 atomic_set(&bat_priv
->batman_queue_left
, BATMAN_QUEUE_LEN
);
830 atomic_set(&bat_priv
->mesh_state
, MESH_INACTIVE
);
831 atomic_set(&bat_priv
->bcast_seqno
, 1);
832 atomic_set(&bat_priv
->tt_local_changed
, 0);
834 bat_priv
->primary_if
= NULL
;
835 bat_priv
->num_ifaces
= 0;
837 ret
= sysfs_add_meshif(soft_iface
);
839 goto unreg_soft_iface
;
841 ret
= debugfs_add_meshif(soft_iface
);
845 ret
= mesh_init(soft_iface
);
852 debugfs_del_meshif(soft_iface
);
854 sysfs_del_meshif(soft_iface
);
856 unregister_netdev(soft_iface
);
860 free_netdev(soft_iface
);
865 void softif_destroy(struct net_device
*soft_iface
)
867 debugfs_del_meshif(soft_iface
);
868 sysfs_del_meshif(soft_iface
);
869 mesh_free(soft_iface
);
870 unregister_netdevice(soft_iface
);
873 int softif_is_valid(const struct net_device
*net_dev
)
875 #ifdef HAVE_NET_DEVICE_OPS
876 if (net_dev
->netdev_ops
->ndo_start_xmit
== interface_tx
)
879 if (net_dev
->hard_start_xmit
== interface_tx
)
887 static int bat_get_settings(struct net_device
*dev
, struct ethtool_cmd
*cmd
)
890 cmd
->advertising
= 0;
891 ethtool_cmd_speed_set(cmd
, SPEED_10
);
892 cmd
->duplex
= DUPLEX_FULL
;
894 cmd
->phy_address
= 0;
895 cmd
->transceiver
= XCVR_INTERNAL
;
896 cmd
->autoneg
= AUTONEG_DISABLE
;
903 static void bat_get_drvinfo(struct net_device
*dev
,
904 struct ethtool_drvinfo
*info
)
906 strcpy(info
->driver
, "B.A.T.M.A.N. advanced");
907 strcpy(info
->version
, SOURCE_VERSION
);
908 strcpy(info
->fw_version
, "N/A");
909 strcpy(info
->bus_info
, "batman");
912 static u32
bat_get_msglevel(struct net_device
*dev
)
917 static void bat_set_msglevel(struct net_device
*dev
, u32 value
)
921 static u32
bat_get_link(struct net_device
*dev
)