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-rw-r--r--net/batman-adv/aggregation.c293
-rw-r--r--net/batman-adv/aggregation.h46
-rw-r--r--net/batman-adv/bat_debugfs.c359
-rw-r--r--net/batman-adv/bat_debugfs.h33
-rw-r--r--net/batman-adv/bat_sysfs.c674
-rw-r--r--net/batman-adv/bat_sysfs.h44
6 files changed, 1449 insertions, 0 deletions
diff --git a/net/batman-adv/aggregation.c b/net/batman-adv/aggregation.c
new file mode 100644
index 00000000000..69467fe71ff
--- /dev/null
+++ b/net/batman-adv/aggregation.c
@@ -0,0 +1,293 @@
1/*
2 * Copyright (C) 2007-2011 B.A.T.M.A.N. contributors:
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 "translation-table.h"
24#include "aggregation.h"
25#include "send.h"
26#include "routing.h"
27#include "hard-interface.h"
28
29/* return true if new_packet can be aggregated with forw_packet */
30static bool can_aggregate_with(const struct batman_packet *new_batman_packet,
31 struct bat_priv *bat_priv,
32 int packet_len,
33 unsigned long send_time,
34 bool directlink,
35 const struct hard_iface *if_incoming,
36 const struct forw_packet *forw_packet)
37{
38 struct batman_packet *batman_packet =
39 (struct batman_packet *)forw_packet->skb->data;
40 int aggregated_bytes = forw_packet->packet_len + packet_len;
41 struct hard_iface *primary_if = NULL;
42 bool res = false;
43
44 /**
45 * we can aggregate the current packet to this aggregated packet
46 * if:
47 *
48 * - the send time is within our MAX_AGGREGATION_MS time
49 * - the resulting packet wont be bigger than
50 * MAX_AGGREGATION_BYTES
51 */
52
53 if (time_before(send_time, forw_packet->send_time) &&
54 time_after_eq(send_time + msecs_to_jiffies(MAX_AGGREGATION_MS),
55 forw_packet->send_time) &&
56 (aggregated_bytes <= MAX_AGGREGATION_BYTES)) {
57
58 /**
59 * check aggregation compatibility
60 * -> direct link packets are broadcasted on
61 * their interface only
62 * -> aggregate packet if the current packet is
63 * a "global" packet as well as the base
64 * packet
65 */
66
67 primary_if = primary_if_get_selected(bat_priv);
68 if (!primary_if)
69 goto out;
70
71 /* packets without direct link flag and high TTL
72 * are flooded through the net */
73 if ((!directlink) &&
74 (!(batman_packet->flags & DIRECTLINK)) &&
75 (batman_packet->ttl != 1) &&
76
77 /* own packets originating non-primary
78 * interfaces leave only that interface */
79 ((!forw_packet->own) ||
80 (forw_packet->if_incoming == primary_if))) {
81 res = true;
82 goto out;
83 }
84
85 /* if the incoming packet is sent via this one
86 * interface only - we still can aggregate */
87 if ((directlink) &&
88 (new_batman_packet->ttl == 1) &&
89 (forw_packet->if_incoming == if_incoming) &&
90
91 /* packets from direct neighbors or
92 * own secondary interface packets
93 * (= secondary interface packets in general) */
94 (batman_packet->flags & DIRECTLINK ||
95 (forw_packet->own &&
96 forw_packet->if_incoming != primary_if))) {
97 res = true;
98 goto out;
99 }
100 }
101
102out:
103 if (primary_if)
104 hardif_free_ref(primary_if);
105 return res;
106}
107
108/* create a new aggregated packet and add this packet to it */
109static void new_aggregated_packet(const unsigned char *packet_buff,
110 int packet_len, unsigned long send_time,
111 bool direct_link,
112 struct hard_iface *if_incoming,
113 int own_packet)
114{
115 struct bat_priv *bat_priv = netdev_priv(if_incoming->soft_iface);
116 struct forw_packet *forw_packet_aggr;
117 unsigned char *skb_buff;
118
119 if (!atomic_inc_not_zero(&if_incoming->refcount))
120 return;
121
122 /* own packet should always be scheduled */
123 if (!own_packet) {
124 if (!atomic_dec_not_zero(&bat_priv->batman_queue_left)) {
125 bat_dbg(DBG_BATMAN, bat_priv,
126 "batman packet queue full\n");
127 goto out;
128 }
129 }
130
131 forw_packet_aggr = kmalloc(sizeof(*forw_packet_aggr), GFP_ATOMIC);
132 if (!forw_packet_aggr) {
133 if (!own_packet)
134 atomic_inc(&bat_priv->batman_queue_left);
135 goto out;
136 }
137
138 if ((atomic_read(&bat_priv->aggregated_ogms)) &&
139 (packet_len < MAX_AGGREGATION_BYTES))
140 forw_packet_aggr->skb = dev_alloc_skb(MAX_AGGREGATION_BYTES +
141 sizeof(struct ethhdr));
142 else
143 forw_packet_aggr->skb = dev_alloc_skb(packet_len +
144 sizeof(struct ethhdr));
145
146 if (!forw_packet_aggr->skb) {
147 if (!own_packet)
148 atomic_inc(&bat_priv->batman_queue_left);
149 kfree(forw_packet_aggr);
150 goto out;
151 }
152 skb_reserve(forw_packet_aggr->skb, sizeof(struct ethhdr));
153
154 INIT_HLIST_NODE(&forw_packet_aggr->list);
155
156 skb_buff = skb_put(forw_packet_aggr->skb, packet_len);
157 forw_packet_aggr->packet_len = packet_len;
158 memcpy(skb_buff, packet_buff, packet_len);
159
160 forw_packet_aggr->own = own_packet;
161 forw_packet_aggr->if_incoming = if_incoming;
162 forw_packet_aggr->num_packets = 0;
163 forw_packet_aggr->direct_link_flags = NO_FLAGS;
164 forw_packet_aggr->send_time = send_time;
165
166 /* save packet direct link flag status */
167 if (direct_link)
168 forw_packet_aggr->direct_link_flags |= 1;
169
170 /* add new packet to packet list */
171 spin_lock_bh(&bat_priv->forw_bat_list_lock);
172 hlist_add_head(&forw_packet_aggr->list, &bat_priv->forw_bat_list);
173 spin_unlock_bh(&bat_priv->forw_bat_list_lock);
174
175 /* start timer for this packet */
176 INIT_DELAYED_WORK(&forw_packet_aggr->delayed_work,
177 send_outstanding_bat_packet);
178 queue_delayed_work(bat_event_workqueue,
179 &forw_packet_aggr->delayed_work,
180 send_time - jiffies);
181
182 return;
183out:
184 hardif_free_ref(if_incoming);
185}
186
187/* aggregate a new packet into the existing aggregation */
188static void aggregate(struct forw_packet *forw_packet_aggr,
189 const unsigned char *packet_buff, int packet_len,
190 bool direct_link)
191{
192 unsigned char *skb_buff;
193
194 skb_buff = skb_put(forw_packet_aggr->skb, packet_len);
195 memcpy(skb_buff, packet_buff, packet_len);
196 forw_packet_aggr->packet_len += packet_len;
197 forw_packet_aggr->num_packets++;
198
199 /* save packet direct link flag status */
200 if (direct_link)
201 forw_packet_aggr->direct_link_flags |=
202 (1 << forw_packet_aggr->num_packets);
203}
204
205void add_bat_packet_to_list(struct bat_priv *bat_priv,
206 unsigned char *packet_buff, int packet_len,
207 struct hard_iface *if_incoming, int own_packet,
208 unsigned long send_time)
209{
210 /**
211 * _aggr -> pointer to the packet we want to aggregate with
212 * _pos -> pointer to the position in the queue
213 */
214 struct forw_packet *forw_packet_aggr = NULL, *forw_packet_pos = NULL;
215 struct hlist_node *tmp_node;
216 struct batman_packet *batman_packet =
217 (struct batman_packet *)packet_buff;
218 bool direct_link = batman_packet->flags & DIRECTLINK ? 1 : 0;
219
220 /* find position for the packet in the forward queue */
221 spin_lock_bh(&bat_priv->forw_bat_list_lock);
222 /* own packets are not to be aggregated */
223 if ((atomic_read(&bat_priv->aggregated_ogms)) && (!own_packet)) {
224 hlist_for_each_entry(forw_packet_pos, tmp_node,
225 &bat_priv->forw_bat_list, list) {
226 if (can_aggregate_with(batman_packet,
227 bat_priv,
228 packet_len,
229 send_time,
230 direct_link,
231 if_incoming,
232 forw_packet_pos)) {
233 forw_packet_aggr = forw_packet_pos;
234 break;
235 }
236 }
237 }
238
239 /* nothing to aggregate with - either aggregation disabled or no
240 * suitable aggregation packet found */
241 if (!forw_packet_aggr) {
242 /* the following section can run without the lock */
243 spin_unlock_bh(&bat_priv->forw_bat_list_lock);
244
245 /**
246 * if we could not aggregate this packet with one of the others
247 * we hold it back for a while, so that it might be aggregated
248 * later on
249 */
250 if ((!own_packet) &&
251 (atomic_read(&bat_priv->aggregated_ogms)))
252 send_time += msecs_to_jiffies(MAX_AGGREGATION_MS);
253
254 new_aggregated_packet(packet_buff, packet_len,
255 send_time, direct_link,
256 if_incoming, own_packet);
257 } else {
258 aggregate(forw_packet_aggr,
259 packet_buff, packet_len,
260 direct_link);
261 spin_unlock_bh(&bat_priv->forw_bat_list_lock);
262 }
263}
264
265/* unpack the aggregated packets and process them one by one */
266void receive_aggr_bat_packet(const struct ethhdr *ethhdr,
267 unsigned char *packet_buff, int packet_len,
268 struct hard_iface *if_incoming)
269{
270 struct batman_packet *batman_packet;
271 int buff_pos = 0;
272 unsigned char *tt_buff;
273
274 batman_packet = (struct batman_packet *)packet_buff;
275
276 do {
277 /* network to host order for our 32bit seqno and the
278 orig_interval */
279 batman_packet->seqno = ntohl(batman_packet->seqno);
280 batman_packet->tt_crc = ntohs(batman_packet->tt_crc);
281
282 tt_buff = packet_buff + buff_pos + BAT_PACKET_LEN;
283
284 receive_bat_packet(ethhdr, batman_packet, tt_buff, if_incoming);
285
286 buff_pos += BAT_PACKET_LEN +
287 tt_len(batman_packet->tt_num_changes);
288
289 batman_packet = (struct batman_packet *)
290 (packet_buff + buff_pos);
291 } while (aggregated_packet(buff_pos, packet_len,
292 batman_packet->tt_num_changes));
293}
diff --git a/net/batman-adv/aggregation.h b/net/batman-adv/aggregation.h
new file mode 100644
index 00000000000..216337bb841
--- /dev/null
+++ b/net/batman-adv/aggregation.h
@@ -0,0 +1,46 @@
1/*
2 * Copyright (C) 2007-2011 B.A.T.M.A.N. contributors:
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#ifndef _NET_BATMAN_ADV_AGGREGATION_H_
23#define _NET_BATMAN_ADV_AGGREGATION_H_
24
25#include "main.h"
26
27/* is there another aggregated packet here? */
28static inline int aggregated_packet(int buff_pos, int packet_len,
29 int tt_num_changes)
30{
31 int next_buff_pos = buff_pos + BAT_PACKET_LEN + (tt_num_changes *
32 sizeof(struct tt_change));
33
34 return (next_buff_pos <= packet_len) &&
35 (next_buff_pos <= MAX_AGGREGATION_BYTES);
36}
37
38void add_bat_packet_to_list(struct bat_priv *bat_priv,
39 unsigned char *packet_buff, int packet_len,
40 struct hard_iface *if_incoming, int own_packet,
41 unsigned long send_time);
42void receive_aggr_bat_packet(const struct ethhdr *ethhdr,
43 unsigned char *packet_buff, int packet_len,
44 struct hard_iface *if_incoming);
45
46#endif /* _NET_BATMAN_ADV_AGGREGATION_H_ */
diff --git a/net/batman-adv/bat_debugfs.c b/net/batman-adv/bat_debugfs.c
new file mode 100644
index 00000000000..d0af9bf69e4
--- /dev/null
+++ b/net/batman-adv/bat_debugfs.c
@@ -0,0 +1,359 @@
1/*
2 * Copyright (C) 2010-2011 B.A.T.M.A.N. contributors:
3 *
4 * Marek Lindner
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
24#include <linux/debugfs.h>
25
26#include "bat_debugfs.h"
27#include "translation-table.h"
28#include "originator.h"
29#include "hard-interface.h"
30#include "gateway_common.h"
31#include "gateway_client.h"
32#include "soft-interface.h"
33#include "vis.h"
34#include "icmp_socket.h"
35
36static struct dentry *bat_debugfs;
37
38#ifdef CONFIG_BATMAN_ADV_DEBUG
39#define LOG_BUFF_MASK (log_buff_len-1)
40#define LOG_BUFF(idx) (debug_log->log_buff[(idx) & LOG_BUFF_MASK])
41
42static int log_buff_len = LOG_BUF_LEN;
43
44static void emit_log_char(struct debug_log *debug_log, char c)
45{
46 LOG_BUFF(debug_log->log_end) = c;
47 debug_log->log_end++;
48
49 if (debug_log->log_end - debug_log->log_start > log_buff_len)
50 debug_log->log_start = debug_log->log_end - log_buff_len;
51}
52
53__printf(2, 3)
54static int fdebug_log(struct debug_log *debug_log, const char *fmt, ...)
55{
56 va_list args;
57 static char debug_log_buf[256];
58 char *p;
59
60 if (!debug_log)
61 return 0;
62
63 spin_lock_bh(&debug_log->lock);
64 va_start(args, fmt);
65 vscnprintf(debug_log_buf, sizeof(debug_log_buf), fmt, args);
66 va_end(args);
67
68 for (p = debug_log_buf; *p != 0; p++)
69 emit_log_char(debug_log, *p);
70
71 spin_unlock_bh(&debug_log->lock);
72
73 wake_up(&debug_log->queue_wait);
74
75 return 0;
76}
77
78int debug_log(struct bat_priv *bat_priv, const char *fmt, ...)
79{
80 va_list args;
81 char tmp_log_buf[256];
82
83 va_start(args, fmt);
84 vscnprintf(tmp_log_buf, sizeof(tmp_log_buf), fmt, args);
85 fdebug_log(bat_priv->debug_log, "[%10lu] %s",
86 (jiffies / HZ), tmp_log_buf);
87 va_end(args);
88
89 return 0;
90}
91
92static int log_open(struct inode *inode, struct file *file)
93{
94 nonseekable_open(inode, file);
95 file->private_data = inode->i_private;
96 inc_module_count();
97 return 0;
98}
99
100static int log_release(struct inode *inode, struct file *file)
101{
102 dec_module_count();
103 return 0;
104}
105
106static ssize_t log_read(struct file *file, char __user *buf,
107 size_t count, loff_t *ppos)
108{
109 struct bat_priv *bat_priv = file->private_data;
110 struct debug_log *debug_log = bat_priv->debug_log;
111 int error, i = 0;
112 char c;
113
114 if ((file->f_flags & O_NONBLOCK) &&
115 !(debug_log->log_end - debug_log->log_start))
116 return -EAGAIN;
117
118 if (!buf)
119 return -EINVAL;
120
121 if (count == 0)
122 return 0;
123
124 if (!access_ok(VERIFY_WRITE, buf, count))
125 return -EFAULT;
126
127 error = wait_event_interruptible(debug_log->queue_wait,
128 (debug_log->log_start - debug_log->log_end));
129
130 if (error)
131 return error;
132
133 spin_lock_bh(&debug_log->lock);
134
135 while ((!error) && (i < count) &&
136 (debug_log->log_start != debug_log->log_end)) {
137 c = LOG_BUFF(debug_log->log_start);
138
139 debug_log->log_start++;
140
141 spin_unlock_bh(&debug_log->lock);
142
143 error = __put_user(c, buf);
144
145 spin_lock_bh(&debug_log->lock);
146
147 buf++;
148 i++;
149
150 }
151
152 spin_unlock_bh(&debug_log->lock);
153
154 if (!error)
155 return i;
156
157 return error;
158}
159
160static unsigned int log_poll(struct file *file, poll_table *wait)
161{
162 struct bat_priv *bat_priv = file->private_data;
163 struct debug_log *debug_log = bat_priv->debug_log;
164
165 poll_wait(file, &debug_log->queue_wait, wait);
166
167 if (debug_log->log_end - debug_log->log_start)
168 return POLLIN | POLLRDNORM;
169
170 return 0;
171}
172
173static const struct file_operations log_fops = {
174 .open = log_open,
175 .release = log_release,
176 .read = log_read,
177 .poll = log_poll,
178 .llseek = no_llseek,
179};
180
181static int debug_log_setup(struct bat_priv *bat_priv)
182{
183 struct dentry *d;
184
185 if (!bat_priv->debug_dir)
186 goto err;
187
188 bat_priv->debug_log = kzalloc(sizeof(*bat_priv->debug_log), GFP_ATOMIC);
189 if (!bat_priv->debug_log)
190 goto err;
191
192 spin_lock_init(&bat_priv->debug_log->lock);
193 init_waitqueue_head(&bat_priv->debug_log->queue_wait);
194
195 d = debugfs_create_file("log", S_IFREG | S_IRUSR,
196 bat_priv->debug_dir, bat_priv, &log_fops);
197 if (d)
198 goto err;
199
200 return 0;
201
202err:
203 return 1;
204}
205
206static void debug_log_cleanup(struct bat_priv *bat_priv)
207{
208 kfree(bat_priv->debug_log);
209 bat_priv->debug_log = NULL;
210}
211#else /* CONFIG_BATMAN_ADV_DEBUG */
212static int debug_log_setup(struct bat_priv *bat_priv)
213{
214 bat_priv->debug_log = NULL;
215 return 0;
216}
217
218static void debug_log_cleanup(struct bat_priv *bat_priv)
219{
220 return;
221}
222#endif
223
224static int originators_open(struct inode *inode, struct file *file)
225{
226 struct net_device *net_dev = (struct net_device *)inode->i_private;
227 return single_open(file, orig_seq_print_text, net_dev);
228}
229
230static int gateways_open(struct inode *inode, struct file *file)
231{
232 struct net_device *net_dev = (struct net_device *)inode->i_private;
233 return single_open(file, gw_client_seq_print_text, net_dev);
234}
235
236static int softif_neigh_open(struct inode *inode, struct file *file)
237{
238 struct net_device *net_dev = (struct net_device *)inode->i_private;
239 return single_open(file, softif_neigh_seq_print_text, net_dev);
240}
241
242static int transtable_global_open(struct inode *inode, struct file *file)
243{
244 struct net_device *net_dev = (struct net_device *)inode->i_private;
245 return single_open(file, tt_global_seq_print_text, net_dev);
246}
247
248static int transtable_local_open(struct inode *inode, struct file *file)
249{
250 struct net_device *net_dev = (struct net_device *)inode->i_private;
251 return single_open(file, tt_local_seq_print_text, net_dev);
252}
253
254static int vis_data_open(struct inode *inode, struct file *file)
255{
256 struct net_device *net_dev = (struct net_device *)inode->i_private;
257 return single_open(file, vis_seq_print_text, net_dev);
258}
259
260struct bat_debuginfo {
261 struct attribute attr;
262 const struct file_operations fops;
263};
264
265#define BAT_DEBUGINFO(_name, _mode, _open) \
266struct bat_debuginfo bat_debuginfo_##_name = { \
267 .attr = { .name = __stringify(_name), \
268 .mode = _mode, }, \
269 .fops = { .owner = THIS_MODULE, \
270 .open = _open, \
271 .read = seq_read, \
272 .llseek = seq_lseek, \
273 .release = single_release, \
274 } \
275};
276
277static BAT_DEBUGINFO(originators, S_IRUGO, originators_open);
278static BAT_DEBUGINFO(gateways, S_IRUGO, gateways_open);
279static BAT_DEBUGINFO(softif_neigh, S_IRUGO, softif_neigh_open);
280static BAT_DEBUGINFO(transtable_global, S_IRUGO, transtable_global_open);
281static BAT_DEBUGINFO(transtable_local, S_IRUGO, transtable_local_open);
282static BAT_DEBUGINFO(vis_data, S_IRUGO, vis_data_open);
283
284static struct bat_debuginfo *mesh_debuginfos[] = {
285 &bat_debuginfo_originators,
286 &bat_debuginfo_gateways,
287 &bat_debuginfo_softif_neigh,
288 &bat_debuginfo_transtable_global,
289 &bat_debuginfo_transtable_local,
290 &bat_debuginfo_vis_data,
291 NULL,
292};
293
294void debugfs_init(void)
295{
296 bat_debugfs = debugfs_create_dir(DEBUGFS_BAT_SUBDIR, NULL);
297 if (bat_debugfs == ERR_PTR(-ENODEV))
298 bat_debugfs = NULL;
299}
300
301void debugfs_destroy(void)
302{
303 if (bat_debugfs) {
304 debugfs_remove_recursive(bat_debugfs);
305 bat_debugfs = NULL;
306 }
307}
308
309int debugfs_add_meshif(struct net_device *dev)
310{
311 struct bat_priv *bat_priv = netdev_priv(dev);
312 struct bat_debuginfo **bat_debug;
313 struct dentry *file;
314
315 if (!bat_debugfs)
316 goto out;
317
318 bat_priv->debug_dir = debugfs_create_dir(dev->name, bat_debugfs);
319 if (!bat_priv->debug_dir)
320 goto out;
321
322 bat_socket_setup(bat_priv);
323 debug_log_setup(bat_priv);
324
325 for (bat_debug = mesh_debuginfos; *bat_debug; ++bat_debug) {
326 file = debugfs_create_file(((*bat_debug)->attr).name,
327 S_IFREG | ((*bat_debug)->attr).mode,
328 bat_priv->debug_dir,
329 dev, &(*bat_debug)->fops);
330 if (!file) {
331 bat_err(dev, "Can't add debugfs file: %s/%s\n",
332 dev->name, ((*bat_debug)->attr).name);
333 goto rem_attr;
334 }
335 }
336
337 return 0;
338rem_attr:
339 debugfs_remove_recursive(bat_priv->debug_dir);
340 bat_priv->debug_dir = NULL;
341out:
342#ifdef CONFIG_DEBUG_FS
343 return -ENOMEM;
344#else
345 return 0;
346#endif /* CONFIG_DEBUG_FS */
347}
348
349void debugfs_del_meshif(struct net_device *dev)
350{
351 struct bat_priv *bat_priv = netdev_priv(dev);
352
353 debug_log_cleanup(bat_priv);
354
355 if (bat_debugfs) {
356 debugfs_remove_recursive(bat_priv->debug_dir);
357 bat_priv->debug_dir = NULL;
358 }
359}
diff --git a/net/batman-adv/bat_debugfs.h b/net/batman-adv/bat_debugfs.h
new file mode 100644
index 00000000000..bc9cda3f01e
--- /dev/null
+++ b/net/batman-adv/bat_debugfs.h
@@ -0,0 +1,33 @@
1/*
2 * Copyright (C) 2010-2011 B.A.T.M.A.N. contributors:
3 *
4 * Marek Lindner
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
23#ifndef _NET_BATMAN_ADV_DEBUGFS_H_
24#define _NET_BATMAN_ADV_DEBUGFS_H_
25
26#define DEBUGFS_BAT_SUBDIR "batman_adv"
27
28void debugfs_init(void);
29void debugfs_destroy(void);
30int debugfs_add_meshif(struct net_device *dev);
31void debugfs_del_meshif(struct net_device *dev);
32
33#endif /* _NET_BATMAN_ADV_DEBUGFS_H_ */
diff --git a/net/batman-adv/bat_sysfs.c b/net/batman-adv/bat_sysfs.c
new file mode 100644
index 00000000000..cd15deba60a
--- /dev/null
+++ b/net/batman-adv/bat_sysfs.c
@@ -0,0 +1,674 @@
1/*
2 * Copyright (C) 2010-2011 B.A.T.M.A.N. contributors:
3 *
4 * Marek Lindner
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 "bat_sysfs.h"
24#include "translation-table.h"
25#include "originator.h"
26#include "hard-interface.h"
27#include "gateway_common.h"
28#include "gateway_client.h"
29#include "vis.h"
30
31static struct net_device *kobj_to_netdev(struct kobject *obj)
32{
33 struct device *dev = container_of(obj->parent, struct device, kobj);
34 return to_net_dev(dev);
35}
36
37static struct bat_priv *kobj_to_batpriv(struct kobject *obj)
38{
39 struct net_device *net_dev = kobj_to_netdev(obj);
40 return netdev_priv(net_dev);
41}
42
43#define UEV_TYPE_VAR "BATTYPE="
44#define UEV_ACTION_VAR "BATACTION="
45#define UEV_DATA_VAR "BATDATA="
46
47static char *uev_action_str[] = {
48 "add",
49 "del",
50 "change"
51};
52
53static char *uev_type_str[] = {
54 "gw"
55};
56
57/* Use this, if you have customized show and store functions */
58#define BAT_ATTR(_name, _mode, _show, _store) \
59struct bat_attribute bat_attr_##_name = { \
60 .attr = {.name = __stringify(_name), \
61 .mode = _mode }, \
62 .show = _show, \
63 .store = _store, \
64};
65
66#define BAT_ATTR_STORE_BOOL(_name, _post_func) \
67ssize_t store_##_name(struct kobject *kobj, struct attribute *attr, \
68 char *buff, size_t count) \
69{ \
70 struct net_device *net_dev = kobj_to_netdev(kobj); \
71 struct bat_priv *bat_priv = netdev_priv(net_dev); \
72 return __store_bool_attr(buff, count, _post_func, attr, \
73 &bat_priv->_name, net_dev); \
74}
75
76#define BAT_ATTR_SHOW_BOOL(_name) \
77ssize_t show_##_name(struct kobject *kobj, struct attribute *attr, \
78 char *buff) \
79{ \
80 struct bat_priv *bat_priv = kobj_to_batpriv(kobj); \
81 return sprintf(buff, "%s\n", \
82 atomic_read(&bat_priv->_name) == 0 ? \
83 "disabled" : "enabled"); \
84} \
85
86/* Use this, if you are going to turn a [name] in bat_priv on or off */
87#define BAT_ATTR_BOOL(_name, _mode, _post_func) \
88 static BAT_ATTR_STORE_BOOL(_name, _post_func) \
89 static BAT_ATTR_SHOW_BOOL(_name) \
90 static BAT_ATTR(_name, _mode, show_##_name, store_##_name)
91
92
93#define BAT_ATTR_STORE_UINT(_name, _min, _max, _post_func) \
94ssize_t store_##_name(struct kobject *kobj, struct attribute *attr, \
95 char *buff, size_t count) \
96{ \
97 struct net_device *net_dev = kobj_to_netdev(kobj); \
98 struct bat_priv *bat_priv = netdev_priv(net_dev); \
99 return __store_uint_attr(buff, count, _min, _max, _post_func, \
100 attr, &bat_priv->_name, net_dev); \
101}
102
103#define BAT_ATTR_SHOW_UINT(_name) \
104ssize_t show_##_name(struct kobject *kobj, struct attribute *attr, \
105 char *buff) \
106{ \
107 struct bat_priv *bat_priv = kobj_to_batpriv(kobj); \
108 return sprintf(buff, "%i\n", atomic_read(&bat_priv->_name)); \
109} \
110
111/* Use this, if you are going to set [name] in bat_priv to unsigned integer
112 * values only */
113#define BAT_ATTR_UINT(_name, _mode, _min, _max, _post_func) \
114 static BAT_ATTR_STORE_UINT(_name, _min, _max, _post_func) \
115 static BAT_ATTR_SHOW_UINT(_name) \
116 static BAT_ATTR(_name, _mode, show_##_name, store_##_name)
117
118
119static int store_bool_attr(char *buff, size_t count,
120 struct net_device *net_dev,
121 const char *attr_name, atomic_t *attr)
122{
123 int enabled = -1;
124
125 if (buff[count - 1] == '\n')
126 buff[count - 1] = '\0';
127
128 if ((strncmp(buff, "1", 2) == 0) ||
129 (strncmp(buff, "enable", 7) == 0) ||
130 (strncmp(buff, "enabled", 8) == 0))
131 enabled = 1;
132
133 if ((strncmp(buff, "0", 2) == 0) ||
134 (strncmp(buff, "disable", 8) == 0) ||
135 (strncmp(buff, "disabled", 9) == 0))
136 enabled = 0;
137
138 if (enabled < 0) {
139 bat_info(net_dev,
140 "%s: Invalid parameter received: %s\n",
141 attr_name, buff);
142 return -EINVAL;
143 }
144
145 if (atomic_read(attr) == enabled)
146 return count;
147
148 bat_info(net_dev, "%s: Changing from: %s to: %s\n", attr_name,
149 atomic_read(attr) == 1 ? "enabled" : "disabled",
150 enabled == 1 ? "enabled" : "disabled");
151
152 atomic_set(attr, (unsigned)enabled);
153 return count;
154}
155
156static inline ssize_t __store_bool_attr(char *buff, size_t count,
157 void (*post_func)(struct net_device *),
158 struct attribute *attr,
159 atomic_t *attr_store, struct net_device *net_dev)
160{
161 int ret;
162
163 ret = store_bool_attr(buff, count, net_dev, attr->name, attr_store);
164 if (post_func && ret)
165 post_func(net_dev);
166
167 return ret;
168}
169
170static int store_uint_attr(const char *buff, size_t count,
171 struct net_device *net_dev, const char *attr_name,
172 unsigned int min, unsigned int max, atomic_t *attr)
173{
174 unsigned long uint_val;
175 int ret;
176
177 ret = strict_strtoul(buff, 10, &uint_val);
178 if (ret) {
179 bat_info(net_dev,
180 "%s: Invalid parameter received: %s\n",
181 attr_name, buff);
182 return -EINVAL;
183 }
184
185 if (uint_val < min) {
186 bat_info(net_dev, "%s: Value is too small: %lu min: %u\n",
187 attr_name, uint_val, min);
188 return -EINVAL;
189 }
190
191 if (uint_val > max) {
192 bat_info(net_dev, "%s: Value is too big: %lu max: %u\n",
193 attr_name, uint_val, max);
194 return -EINVAL;
195 }
196
197 if (atomic_read(attr) == uint_val)
198 return count;
199
200 bat_info(net_dev, "%s: Changing from: %i to: %lu\n",
201 attr_name, atomic_read(attr), uint_val);
202
203 atomic_set(attr, uint_val);
204 return count;
205}
206
207static inline ssize_t __store_uint_attr(const char *buff, size_t count,
208 int min, int max,
209 void (*post_func)(struct net_device *),
210 const struct attribute *attr,
211 atomic_t *attr_store, struct net_device *net_dev)
212{
213 int ret;
214
215 ret = store_uint_attr(buff, count, net_dev, attr->name,
216 min, max, attr_store);
217 if (post_func && ret)
218 post_func(net_dev);
219
220 return ret;
221}
222
223static ssize_t show_vis_mode(struct kobject *kobj, struct attribute *attr,
224 char *buff)
225{
226 struct bat_priv *bat_priv = kobj_to_batpriv(kobj);
227 int vis_mode = atomic_read(&bat_priv->vis_mode);
228
229 return sprintf(buff, "%s\n",
230 vis_mode == VIS_TYPE_CLIENT_UPDATE ?
231 "client" : "server");
232}
233
234static ssize_t store_vis_mode(struct kobject *kobj, struct attribute *attr,
235 char *buff, size_t count)
236{
237 struct net_device *net_dev = kobj_to_netdev(kobj);
238 struct bat_priv *bat_priv = netdev_priv(net_dev);
239 unsigned long val;
240 int ret, vis_mode_tmp = -1;
241
242 ret = strict_strtoul(buff, 10, &val);
243
244 if (((count == 2) && (!ret) && (val == VIS_TYPE_CLIENT_UPDATE)) ||
245 (strncmp(buff, "client", 6) == 0) ||
246 (strncmp(buff, "off", 3) == 0))
247 vis_mode_tmp = VIS_TYPE_CLIENT_UPDATE;
248
249 if (((count == 2) && (!ret) && (val == VIS_TYPE_SERVER_SYNC)) ||
250 (strncmp(buff, "server", 6) == 0))
251 vis_mode_tmp = VIS_TYPE_SERVER_SYNC;
252
253 if (vis_mode_tmp < 0) {
254 if (buff[count - 1] == '\n')
255 buff[count - 1] = '\0';
256
257 bat_info(net_dev,
258 "Invalid parameter for 'vis mode' setting received: "
259 "%s\n", buff);
260 return -EINVAL;
261 }
262
263 if (atomic_read(&bat_priv->vis_mode) == vis_mode_tmp)
264 return count;
265
266 bat_info(net_dev, "Changing vis mode from: %s to: %s\n",
267 atomic_read(&bat_priv->vis_mode) == VIS_TYPE_CLIENT_UPDATE ?
268 "client" : "server", vis_mode_tmp == VIS_TYPE_CLIENT_UPDATE ?
269 "client" : "server");
270
271 atomic_set(&bat_priv->vis_mode, (unsigned)vis_mode_tmp);
272 return count;
273}
274
275static void post_gw_deselect(struct net_device *net_dev)
276{
277 struct bat_priv *bat_priv = netdev_priv(net_dev);
278 gw_deselect(bat_priv);
279}
280
281static ssize_t show_gw_mode(struct kobject *kobj, struct attribute *attr,
282 char *buff)
283{
284 struct bat_priv *bat_priv = kobj_to_batpriv(kobj);
285 int bytes_written;
286
287 switch (atomic_read(&bat_priv->gw_mode)) {
288 case GW_MODE_CLIENT:
289 bytes_written = sprintf(buff, "%s\n", GW_MODE_CLIENT_NAME);
290 break;
291 case GW_MODE_SERVER:
292 bytes_written = sprintf(buff, "%s\n", GW_MODE_SERVER_NAME);
293 break;
294 default:
295 bytes_written = sprintf(buff, "%s\n", GW_MODE_OFF_NAME);
296 break;
297 }
298
299 return bytes_written;
300}
301
302static ssize_t store_gw_mode(struct kobject *kobj, struct attribute *attr,
303 char *buff, size_t count)
304{
305 struct net_device *net_dev = kobj_to_netdev(kobj);
306 struct bat_priv *bat_priv = netdev_priv(net_dev);
307 char *curr_gw_mode_str;
308 int gw_mode_tmp = -1;
309
310 if (buff[count - 1] == '\n')
311 buff[count - 1] = '\0';
312
313 if (strncmp(buff, GW_MODE_OFF_NAME, strlen(GW_MODE_OFF_NAME)) == 0)
314 gw_mode_tmp = GW_MODE_OFF;
315
316 if (strncmp(buff, GW_MODE_CLIENT_NAME,
317 strlen(GW_MODE_CLIENT_NAME)) == 0)
318 gw_mode_tmp = GW_MODE_CLIENT;
319
320 if (strncmp(buff, GW_MODE_SERVER_NAME,
321 strlen(GW_MODE_SERVER_NAME)) == 0)
322 gw_mode_tmp = GW_MODE_SERVER;
323
324 if (gw_mode_tmp < 0) {
325 bat_info(net_dev,
326 "Invalid parameter for 'gw mode' setting received: "
327 "%s\n", buff);
328 return -EINVAL;
329 }
330
331 if (atomic_read(&bat_priv->gw_mode) == gw_mode_tmp)
332 return count;
333
334 switch (atomic_read(&bat_priv->gw_mode)) {
335 case GW_MODE_CLIENT:
336 curr_gw_mode_str = GW_MODE_CLIENT_NAME;
337 break;
338 case GW_MODE_SERVER:
339 curr_gw_mode_str = GW_MODE_SERVER_NAME;
340 break;
341 default:
342 curr_gw_mode_str = GW_MODE_OFF_NAME;
343 break;
344 }
345
346 bat_info(net_dev, "Changing gw mode from: %s to: %s\n",
347 curr_gw_mode_str, buff);
348
349 gw_deselect(bat_priv);
350 atomic_set(&bat_priv->gw_mode, (unsigned)gw_mode_tmp);
351 return count;
352}
353
354static ssize_t show_gw_bwidth(struct kobject *kobj, struct attribute *attr,
355 char *buff)
356{
357 struct bat_priv *bat_priv = kobj_to_batpriv(kobj);
358 int down, up;
359 int gw_bandwidth = atomic_read(&bat_priv->gw_bandwidth);
360
361 gw_bandwidth_to_kbit(gw_bandwidth, &down, &up);
362 return sprintf(buff, "%i%s/%i%s\n",
363 (down > 2048 ? down / 1024 : down),
364 (down > 2048 ? "MBit" : "KBit"),
365 (up > 2048 ? up / 1024 : up),
366 (up > 2048 ? "MBit" : "KBit"));
367}
368
369static ssize_t store_gw_bwidth(struct kobject *kobj, struct attribute *attr,
370 char *buff, size_t count)
371{
372 struct net_device *net_dev = kobj_to_netdev(kobj);
373
374 if (buff[count - 1] == '\n')
375 buff[count - 1] = '\0';
376
377 return gw_bandwidth_set(net_dev, buff, count);
378}
379
380BAT_ATTR_BOOL(aggregated_ogms, S_IRUGO | S_IWUSR, NULL);
381BAT_ATTR_BOOL(bonding, S_IRUGO | S_IWUSR, NULL);
382BAT_ATTR_BOOL(fragmentation, S_IRUGO | S_IWUSR, update_min_mtu);
383static BAT_ATTR(vis_mode, S_IRUGO | S_IWUSR, show_vis_mode, store_vis_mode);
384static BAT_ATTR(gw_mode, S_IRUGO | S_IWUSR, show_gw_mode, store_gw_mode);
385BAT_ATTR_UINT(orig_interval, S_IRUGO | S_IWUSR, 2 * JITTER, INT_MAX, NULL);
386BAT_ATTR_UINT(hop_penalty, S_IRUGO | S_IWUSR, 0, TQ_MAX_VALUE, NULL);
387BAT_ATTR_UINT(gw_sel_class, S_IRUGO | S_IWUSR, 1, TQ_MAX_VALUE,
388 post_gw_deselect);
389static BAT_ATTR(gw_bandwidth, S_IRUGO | S_IWUSR, show_gw_bwidth,
390 store_gw_bwidth);
391#ifdef CONFIG_BATMAN_ADV_DEBUG
392BAT_ATTR_UINT(log_level, S_IRUGO | S_IWUSR, 0, 7, NULL);
393#endif
394
395static struct bat_attribute *mesh_attrs[] = {
396 &bat_attr_aggregated_ogms,
397 &bat_attr_bonding,
398 &bat_attr_fragmentation,
399 &bat_attr_vis_mode,
400 &bat_attr_gw_mode,
401 &bat_attr_orig_interval,
402 &bat_attr_hop_penalty,
403 &bat_attr_gw_sel_class,
404 &bat_attr_gw_bandwidth,
405#ifdef CONFIG_BATMAN_ADV_DEBUG
406 &bat_attr_log_level,
407#endif
408 NULL,
409};
410
411int sysfs_add_meshif(struct net_device *dev)
412{
413 struct kobject *batif_kobject = &dev->dev.kobj;
414 struct bat_priv *bat_priv = netdev_priv(dev);
415 struct bat_attribute **bat_attr;
416 int err;
417
418 bat_priv->mesh_obj = kobject_create_and_add(SYSFS_IF_MESH_SUBDIR,
419 batif_kobject);
420 if (!bat_priv->mesh_obj) {
421 bat_err(dev, "Can't add sysfs directory: %s/%s\n", dev->name,
422 SYSFS_IF_MESH_SUBDIR);
423 goto out;
424 }
425
426 for (bat_attr = mesh_attrs; *bat_attr; ++bat_attr) {
427 err = sysfs_create_file(bat_priv->mesh_obj,
428 &((*bat_attr)->attr));
429 if (err) {
430 bat_err(dev, "Can't add sysfs file: %s/%s/%s\n",
431 dev->name, SYSFS_IF_MESH_SUBDIR,
432 ((*bat_attr)->attr).name);
433 goto rem_attr;
434 }
435 }
436
437 return 0;
438
439rem_attr:
440 for (bat_attr = mesh_attrs; *bat_attr; ++bat_attr)
441 sysfs_remove_file(bat_priv->mesh_obj, &((*bat_attr)->attr));
442
443 kobject_put(bat_priv->mesh_obj);
444 bat_priv->mesh_obj = NULL;
445out:
446 return -ENOMEM;
447}
448
449void sysfs_del_meshif(struct net_device *dev)
450{
451 struct bat_priv *bat_priv = netdev_priv(dev);
452 struct bat_attribute **bat_attr;
453
454 for (bat_attr = mesh_attrs; *bat_attr; ++bat_attr)
455 sysfs_remove_file(bat_priv->mesh_obj, &((*bat_attr)->attr));
456
457 kobject_put(bat_priv->mesh_obj);
458 bat_priv->mesh_obj = NULL;
459}
460
461static ssize_t show_mesh_iface(struct kobject *kobj, struct attribute *attr,
462 char *buff)
463{
464 struct net_device *net_dev = kobj_to_netdev(kobj);
465 struct hard_iface *hard_iface = hardif_get_by_netdev(net_dev);
466 ssize_t length;
467
468 if (!hard_iface)
469 return 0;
470
471 length = sprintf(buff, "%s\n", hard_iface->if_status == IF_NOT_IN_USE ?
472 "none" : hard_iface->soft_iface->name);
473
474 hardif_free_ref(hard_iface);
475
476 return length;
477}
478
479static ssize_t store_mesh_iface(struct kobject *kobj, struct attribute *attr,
480 char *buff, size_t count)
481{
482 struct net_device *net_dev = kobj_to_netdev(kobj);
483 struct hard_iface *hard_iface = hardif_get_by_netdev(net_dev);
484 int status_tmp = -1;
485 int ret = count;
486
487 if (!hard_iface)
488 return count;
489
490 if (buff[count - 1] == '\n')
491 buff[count - 1] = '\0';
492
493 if (strlen(buff) >= IFNAMSIZ) {
494 pr_err("Invalid parameter for 'mesh_iface' setting received: "
495 "interface name too long '%s'\n", buff);
496 hardif_free_ref(hard_iface);
497 return -EINVAL;
498 }
499
500 if (strncmp(buff, "none", 4) == 0)
501 status_tmp = IF_NOT_IN_USE;
502 else
503 status_tmp = IF_I_WANT_YOU;
504
505 if (hard_iface->if_status == status_tmp)
506 goto out;
507
508 if ((hard_iface->soft_iface) &&
509 (strncmp(hard_iface->soft_iface->name, buff, IFNAMSIZ) == 0))
510 goto out;
511
512 if (!rtnl_trylock()) {
513 ret = -ERESTARTSYS;
514 goto out;
515 }
516
517 if (status_tmp == IF_NOT_IN_USE) {
518 hardif_disable_interface(hard_iface);
519 goto unlock;
520 }
521
522 /* if the interface already is in use */
523 if (hard_iface->if_status != IF_NOT_IN_USE)
524 hardif_disable_interface(hard_iface);
525
526 ret = hardif_enable_interface(hard_iface, buff);
527
528unlock:
529 rtnl_unlock();
530out:
531 hardif_free_ref(hard_iface);
532 return ret;
533}
534
535static ssize_t show_iface_status(struct kobject *kobj, struct attribute *attr,
536 char *buff)
537{
538 struct net_device *net_dev = kobj_to_netdev(kobj);
539 struct hard_iface *hard_iface = hardif_get_by_netdev(net_dev);
540 ssize_t length;
541
542 if (!hard_iface)
543 return 0;
544
545 switch (hard_iface->if_status) {
546 case IF_TO_BE_REMOVED:
547 length = sprintf(buff, "disabling\n");
548 break;
549 case IF_INACTIVE:
550 length = sprintf(buff, "inactive\n");
551 break;
552 case IF_ACTIVE:
553 length = sprintf(buff, "active\n");
554 break;
555 case IF_TO_BE_ACTIVATED:
556 length = sprintf(buff, "enabling\n");
557 break;
558 case IF_NOT_IN_USE:
559 default:
560 length = sprintf(buff, "not in use\n");
561 break;
562 }
563
564 hardif_free_ref(hard_iface);
565
566 return length;
567}
568
569static BAT_ATTR(mesh_iface, S_IRUGO | S_IWUSR,
570 show_mesh_iface, store_mesh_iface);
571static BAT_ATTR(iface_status, S_IRUGO, show_iface_status, NULL);
572
573static struct bat_attribute *batman_attrs[] = {
574 &bat_attr_mesh_iface,
575 &bat_attr_iface_status,
576 NULL,
577};
578
579int sysfs_add_hardif(struct kobject **hardif_obj, struct net_device *dev)
580{
581 struct kobject *hardif_kobject = &dev->dev.kobj;
582 struct bat_attribute **bat_attr;
583 int err;
584
585 *hardif_obj = kobject_create_and_add(SYSFS_IF_BAT_SUBDIR,
586 hardif_kobject);
587
588 if (!*hardif_obj) {
589 bat_err(dev, "Can't add sysfs directory: %s/%s\n", dev->name,
590 SYSFS_IF_BAT_SUBDIR);
591 goto out;
592 }
593
594 for (bat_attr = batman_attrs; *bat_attr; ++bat_attr) {
595 err = sysfs_create_file(*hardif_obj, &((*bat_attr)->attr));
596 if (err) {
597 bat_err(dev, "Can't add sysfs file: %s/%s/%s\n",
598 dev->name, SYSFS_IF_BAT_SUBDIR,
599 ((*bat_attr)->attr).name);
600 goto rem_attr;
601 }
602 }
603
604 return 0;
605
606rem_attr:
607 for (bat_attr = batman_attrs; *bat_attr; ++bat_attr)
608 sysfs_remove_file(*hardif_obj, &((*bat_attr)->attr));
609out:
610 return -ENOMEM;
611}
612
613void sysfs_del_hardif(struct kobject **hardif_obj)
614{
615 kobject_put(*hardif_obj);
616 *hardif_obj = NULL;
617}
618
619int throw_uevent(struct bat_priv *bat_priv, enum uev_type type,
620 enum uev_action action, const char *data)
621{
622 int ret = -1;
623 struct hard_iface *primary_if = NULL;
624 struct kobject *bat_kobj;
625 char *uevent_env[4] = { NULL, NULL, NULL, NULL };
626
627 primary_if = primary_if_get_selected(bat_priv);
628 if (!primary_if)
629 goto out;
630
631 bat_kobj = &primary_if->soft_iface->dev.kobj;
632
633 uevent_env[0] = kmalloc(strlen(UEV_TYPE_VAR) +
634 strlen(uev_type_str[type]) + 1,
635 GFP_ATOMIC);
636 if (!uevent_env[0])
637 goto out;
638
639 sprintf(uevent_env[0], "%s%s", UEV_TYPE_VAR, uev_type_str[type]);
640
641 uevent_env[1] = kmalloc(strlen(UEV_ACTION_VAR) +
642 strlen(uev_action_str[action]) + 1,
643 GFP_ATOMIC);
644 if (!uevent_env[1])
645 goto out;
646
647 sprintf(uevent_env[1], "%s%s", UEV_ACTION_VAR, uev_action_str[action]);
648
649 /* If the event is DEL, ignore the data field */
650 if (action != UEV_DEL) {
651 uevent_env[2] = kmalloc(strlen(UEV_DATA_VAR) +
652 strlen(data) + 1, GFP_ATOMIC);
653 if (!uevent_env[2])
654 goto out;
655
656 sprintf(uevent_env[2], "%s%s", UEV_DATA_VAR, data);
657 }
658
659 ret = kobject_uevent_env(bat_kobj, KOBJ_CHANGE, uevent_env);
660out:
661 kfree(uevent_env[0]);
662 kfree(uevent_env[1]);
663 kfree(uevent_env[2]);
664
665 if (primary_if)
666 hardif_free_ref(primary_if);
667
668 if (ret)
669 bat_dbg(DBG_BATMAN, bat_priv, "Impossible to send "
670 "uevent for (%s,%s,%s) event (err: %d)\n",
671 uev_type_str[type], uev_action_str[action],
672 (action == UEV_DEL ? "NULL" : data), ret);
673 return ret;
674}
diff --git a/net/batman-adv/bat_sysfs.h b/net/batman-adv/bat_sysfs.h
new file mode 100644
index 00000000000..a3f75a723c5
--- /dev/null
+++ b/net/batman-adv/bat_sysfs.h
@@ -0,0 +1,44 @@
1/*
2 * Copyright (C) 2010-2011 B.A.T.M.A.N. contributors:
3 *
4 * Marek Lindner
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
23#ifndef _NET_BATMAN_ADV_SYSFS_H_
24#define _NET_BATMAN_ADV_SYSFS_H_
25
26#define SYSFS_IF_MESH_SUBDIR "mesh"
27#define SYSFS_IF_BAT_SUBDIR "batman_adv"
28
29struct bat_attribute {
30 struct attribute attr;
31 ssize_t (*show)(struct kobject *kobj, struct attribute *attr,
32 char *buf);
33 ssize_t (*store)(struct kobject *kobj, struct attribute *attr,
34 char *buf, size_t count);
35};
36
37int sysfs_add_meshif(struct net_device *dev);
38void sysfs_del_meshif(struct net_device *dev);
39int sysfs_add_hardif(struct kobject **hardif_obj, struct net_device *dev);
40void sysfs_del_hardif(struct kobject **hardif_obj);
41int throw_uevent(struct bat_priv *bat_priv, enum uev_type type,
42 enum uev_action action, const char *data);
43
44#endif /* _NET_BATMAN_ADV_SYSFS_H_ */
generated by cgit v1.2.2 (git 2.25.0) at 2026-01-13 14:40:18 -0500