aboutsummaryrefslogtreecommitdiffstats
path: root/net/ieee802154
diff options
context:
space:
mode:
authorDmitry Eremin-Solenikov <dbaryshkov@gmail.com>2009-09-14 10:17:36 -0400
committerDmitry Eremin-Solenikov <dbaryshkov@gmail.com>2009-11-06 06:31:20 -0500
commit78fe738d1a631ec34a29d830880e38f5c14c1371 (patch)
tree0e6f5a22589a6c95742d53d2bba996841b1e9421 /net/ieee802154
parentcb6b3763571570ebde1e82524c8a45a4275c8f11 (diff)
ieee802154: split away MAC commands implementation
Move all mac-related stuff to separate file so that ieee802154/netlink.c contains only generic code. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Diffstat (limited to 'net/ieee802154')
-rw-r--r--net/ieee802154/Makefile2
-rw-r--r--net/ieee802154/ieee802154.h48
-rw-r--r--net/ieee802154/netlink.c605
-rw-r--r--net/ieee802154/nl-mac.c609
4 files changed, 669 insertions, 595 deletions
diff --git a/net/ieee802154/Makefile b/net/ieee802154/Makefile
index 42b1f0dc138e..69af9f6a404b 100644
--- a/net/ieee802154/Makefile
+++ b/net/ieee802154/Makefile
@@ -1,5 +1,5 @@
1obj-$(CONFIG_IEEE802154) += ieee802154.o af_802154.o 1obj-$(CONFIG_IEEE802154) += ieee802154.o af_802154.o
2ieee802154-y := netlink.o nl_policy.o wpan-class.o 2ieee802154-y := netlink.o nl-mac.o nl_policy.o wpan-class.o
3af_802154-y := af_ieee802154.o raw.o dgram.o 3af_802154-y := af_ieee802154.o raw.o dgram.o
4 4
5ccflags-y += -Wall -DDEBUG 5ccflags-y += -Wall -DDEBUG
diff --git a/net/ieee802154/ieee802154.h b/net/ieee802154/ieee802154.h
new file mode 100644
index 000000000000..0790eb06d682
--- /dev/null
+++ b/net/ieee802154/ieee802154.h
@@ -0,0 +1,48 @@
1/*
2 * Copyright (C) 2007, 2008, 2009 Siemens AG
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2
6 * as published by the Free Software Foundation.
7 *
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
12 *
13 * You should have received a copy of the GNU General Public License along
14 * with this program; if not, write to the Free Software Foundation, Inc.,
15 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
16 *
17 */
18#ifndef IEEE_802154_LOCAL_H
19#define IEEE_802154_LOCAL_H
20
21int __init ieee802154_nl_init(void);
22void __exit ieee802154_nl_exit(void);
23
24#define IEEE802154_OP(_cmd, _func) \
25 { \
26 .cmd = _cmd, \
27 .policy = ieee802154_policy, \
28 .doit = _func, \
29 .dumpit = NULL, \
30 .flags = GENL_ADMIN_PERM, \
31 }
32
33#define IEEE802154_DUMP(_cmd, _func, _dump) \
34 { \
35 .cmd = _cmd, \
36 .policy = ieee802154_policy, \
37 .doit = _func, \
38 .dumpit = _dump, \
39 }
40
41struct sk_buff *ieee802154_nl_create(int flags, u8 req);
42int ieee802154_nl_mcast(struct sk_buff *msg, unsigned int group);
43
44extern struct genl_family nl802154_family;
45int nl802154_mac_register(void);
46int nl802154_phy_register(void);
47
48#endif
diff --git a/net/ieee802154/netlink.c b/net/ieee802154/netlink.c
index 0fadd6bd77f6..5b738ec7d9f1 100644
--- a/net/ieee802154/netlink.c
+++ b/net/ieee802154/netlink.c
@@ -23,21 +23,15 @@
23 */ 23 */
24 24
25#include <linux/kernel.h> 25#include <linux/kernel.h>
26#include <linux/if_arp.h>
27#include <linux/netdevice.h>
28#include <net/netlink.h>
29#include <net/genetlink.h> 26#include <net/genetlink.h>
30#include <net/sock.h>
31#include <linux/nl802154.h> 27#include <linux/nl802154.h>
32#include <net/af_ieee802154.h> 28
33#include <net/nl802154.h> 29#include "ieee802154.h"
34#include <net/ieee802154.h>
35#include <net/ieee802154_netdev.h>
36 30
37static unsigned int ieee802154_seq_num; 31static unsigned int ieee802154_seq_num;
38static DEFINE_SPINLOCK(ieee802154_seq_lock); 32static DEFINE_SPINLOCK(ieee802154_seq_lock);
39 33
40static struct genl_family ieee802154_coordinator_family = { 34struct genl_family nl802154_family = {
41 .id = GENL_ID_GENERATE, 35 .id = GENL_ID_GENERATE,
42 .hdrsize = 0, 36 .hdrsize = 0,
43 .name = IEEE802154_NL_NAME, 37 .name = IEEE802154_NL_NAME,
@@ -45,16 +39,8 @@ static struct genl_family ieee802154_coordinator_family = {
45 .maxattr = IEEE802154_ATTR_MAX, 39 .maxattr = IEEE802154_ATTR_MAX,
46}; 40};
47 41
48static struct genl_multicast_group ieee802154_coord_mcgrp = {
49 .name = IEEE802154_MCAST_COORD_NAME,
50};
51
52static struct genl_multicast_group ieee802154_beacon_mcgrp = {
53 .name = IEEE802154_MCAST_BEACON_NAME,
54};
55
56/* Requests to userspace */ 42/* Requests to userspace */
57static struct sk_buff *ieee802154_nl_create(int flags, u8 req) 43struct sk_buff *ieee802154_nl_create(int flags, u8 req)
58{ 44{
59 void *hdr; 45 void *hdr;
60 struct sk_buff *msg = nlmsg_new(NLMSG_GOODSIZE, GFP_ATOMIC); 46 struct sk_buff *msg = nlmsg_new(NLMSG_GOODSIZE, GFP_ATOMIC);
@@ -65,7 +51,7 @@ static struct sk_buff *ieee802154_nl_create(int flags, u8 req)
65 51
66 spin_lock_irqsave(&ieee802154_seq_lock, f); 52 spin_lock_irqsave(&ieee802154_seq_lock, f);
67 hdr = genlmsg_put(msg, 0, ieee802154_seq_num++, 53 hdr = genlmsg_put(msg, 0, ieee802154_seq_num++,
68 &ieee802154_coordinator_family, flags, req); 54 &nl802154_family, flags, req);
69 spin_unlock_irqrestore(&ieee802154_seq_lock, f); 55 spin_unlock_irqrestore(&ieee802154_seq_lock, f);
70 if (!hdr) { 56 if (!hdr) {
71 nlmsg_free(msg); 57 nlmsg_free(msg);
@@ -75,7 +61,7 @@ static struct sk_buff *ieee802154_nl_create(int flags, u8 req)
75 return msg; 61 return msg;
76} 62}
77 63
78static int ieee802154_nl_finish(struct sk_buff *msg) 64int ieee802154_nl_mcast(struct sk_buff *msg, unsigned int group)
79{ 65{
80 /* XXX: nlh is right at the start of msg */ 66 /* XXX: nlh is right at the start of msg */
81 void *hdr = genlmsg_data(NLMSG_DATA(msg->data)); 67 void *hdr = genlmsg_data(NLMSG_DATA(msg->data));
@@ -83,602 +69,33 @@ static int ieee802154_nl_finish(struct sk_buff *msg)
83 if (genlmsg_end(msg, hdr) < 0) 69 if (genlmsg_end(msg, hdr) < 0)
84 goto out; 70 goto out;
85 71
86 return genlmsg_multicast(msg, 0, ieee802154_coord_mcgrp.id, 72 return genlmsg_multicast(msg, 0, group, GFP_ATOMIC);
87 GFP_ATOMIC);
88out: 73out:
89 nlmsg_free(msg); 74 nlmsg_free(msg);
90 return -ENOBUFS; 75 return -ENOBUFS;
91} 76}
92 77
93int ieee802154_nl_assoc_indic(struct net_device *dev,
94 struct ieee802154_addr *addr, u8 cap)
95{
96 struct sk_buff *msg;
97
98 pr_debug("%s\n", __func__);
99
100 if (addr->addr_type != IEEE802154_ADDR_LONG) {
101 pr_err("%s: received non-long source address!\n", __func__);
102 return -EINVAL;
103 }
104
105 msg = ieee802154_nl_create(0, IEEE802154_ASSOCIATE_INDIC);
106 if (!msg)
107 return -ENOBUFS;
108
109 NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name);
110 NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex);
111 NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN,
112 dev->dev_addr);
113
114 NLA_PUT(msg, IEEE802154_ATTR_SRC_HW_ADDR, IEEE802154_ADDR_LEN,
115 addr->hwaddr);
116
117 NLA_PUT_U8(msg, IEEE802154_ATTR_CAPABILITY, cap);
118
119 return ieee802154_nl_finish(msg);
120
121nla_put_failure:
122 nlmsg_free(msg);
123 return -ENOBUFS;
124}
125EXPORT_SYMBOL(ieee802154_nl_assoc_indic);
126
127int ieee802154_nl_assoc_confirm(struct net_device *dev, u16 short_addr,
128 u8 status)
129{
130 struct sk_buff *msg;
131
132 pr_debug("%s\n", __func__);
133
134 msg = ieee802154_nl_create(0, IEEE802154_ASSOCIATE_CONF);
135 if (!msg)
136 return -ENOBUFS;
137
138 NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name);
139 NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex);
140 NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN,
141 dev->dev_addr);
142
143 NLA_PUT_U16(msg, IEEE802154_ATTR_SHORT_ADDR, short_addr);
144 NLA_PUT_U8(msg, IEEE802154_ATTR_STATUS, status);
145
146 return ieee802154_nl_finish(msg);
147
148nla_put_failure:
149 nlmsg_free(msg);
150 return -ENOBUFS;
151}
152EXPORT_SYMBOL(ieee802154_nl_assoc_confirm);
153
154int ieee802154_nl_disassoc_indic(struct net_device *dev,
155 struct ieee802154_addr *addr, u8 reason)
156{
157 struct sk_buff *msg;
158
159 pr_debug("%s\n", __func__);
160
161 msg = ieee802154_nl_create(0, IEEE802154_DISASSOCIATE_INDIC);
162 if (!msg)
163 return -ENOBUFS;
164
165 NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name);
166 NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex);
167 NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN,
168 dev->dev_addr);
169
170 if (addr->addr_type == IEEE802154_ADDR_LONG)
171 NLA_PUT(msg, IEEE802154_ATTR_SRC_HW_ADDR, IEEE802154_ADDR_LEN,
172 addr->hwaddr);
173 else
174 NLA_PUT_U16(msg, IEEE802154_ATTR_SRC_SHORT_ADDR,
175 addr->short_addr);
176
177 NLA_PUT_U8(msg, IEEE802154_ATTR_REASON, reason);
178
179 return ieee802154_nl_finish(msg);
180
181nla_put_failure:
182 nlmsg_free(msg);
183 return -ENOBUFS;
184}
185EXPORT_SYMBOL(ieee802154_nl_disassoc_indic);
186
187int ieee802154_nl_disassoc_confirm(struct net_device *dev, u8 status)
188{
189 struct sk_buff *msg;
190
191 pr_debug("%s\n", __func__);
192
193 msg = ieee802154_nl_create(0, IEEE802154_DISASSOCIATE_CONF);
194 if (!msg)
195 return -ENOBUFS;
196
197 NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name);
198 NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex);
199 NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN,
200 dev->dev_addr);
201
202 NLA_PUT_U8(msg, IEEE802154_ATTR_STATUS, status);
203
204 return ieee802154_nl_finish(msg);
205
206nla_put_failure:
207 nlmsg_free(msg);
208 return -ENOBUFS;
209}
210EXPORT_SYMBOL(ieee802154_nl_disassoc_confirm);
211
212int ieee802154_nl_beacon_indic(struct net_device *dev,
213 u16 panid, u16 coord_addr)
214{
215 struct sk_buff *msg;
216
217 pr_debug("%s\n", __func__);
218
219 msg = ieee802154_nl_create(0, IEEE802154_BEACON_NOTIFY_INDIC);
220 if (!msg)
221 return -ENOBUFS;
222
223 NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name);
224 NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex);
225 NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN,
226 dev->dev_addr);
227 NLA_PUT_U16(msg, IEEE802154_ATTR_COORD_SHORT_ADDR, coord_addr);
228 NLA_PUT_U16(msg, IEEE802154_ATTR_COORD_PAN_ID, panid);
229
230 return ieee802154_nl_finish(msg);
231
232nla_put_failure:
233 nlmsg_free(msg);
234 return -ENOBUFS;
235}
236EXPORT_SYMBOL(ieee802154_nl_beacon_indic);
237
238int ieee802154_nl_scan_confirm(struct net_device *dev,
239 u8 status, u8 scan_type, u32 unscanned, u8 page,
240 u8 *edl/* , struct list_head *pan_desc_list */)
241{
242 struct sk_buff *msg;
243
244 pr_debug("%s\n", __func__);
245
246 msg = ieee802154_nl_create(0, IEEE802154_SCAN_CONF);
247 if (!msg)
248 return -ENOBUFS;
249
250 NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name);
251 NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex);
252 NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN,
253 dev->dev_addr);
254
255 NLA_PUT_U8(msg, IEEE802154_ATTR_STATUS, status);
256 NLA_PUT_U8(msg, IEEE802154_ATTR_SCAN_TYPE, scan_type);
257 NLA_PUT_U32(msg, IEEE802154_ATTR_CHANNELS, unscanned);
258 NLA_PUT_U8(msg, IEEE802154_ATTR_PAGE, page);
259
260 if (edl)
261 NLA_PUT(msg, IEEE802154_ATTR_ED_LIST, 27, edl);
262
263 return ieee802154_nl_finish(msg);
264
265nla_put_failure:
266 nlmsg_free(msg);
267 return -ENOBUFS;
268}
269EXPORT_SYMBOL(ieee802154_nl_scan_confirm);
270
271int ieee802154_nl_start_confirm(struct net_device *dev, u8 status)
272{
273 struct sk_buff *msg;
274
275 pr_debug("%s\n", __func__);
276
277 msg = ieee802154_nl_create(0, IEEE802154_START_CONF);
278 if (!msg)
279 return -ENOBUFS;
280
281 NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name);
282 NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex);
283 NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN,
284 dev->dev_addr);
285
286 NLA_PUT_U8(msg, IEEE802154_ATTR_STATUS, status);
287
288 return ieee802154_nl_finish(msg);
289
290nla_put_failure:
291 nlmsg_free(msg);
292 return -ENOBUFS;
293}
294EXPORT_SYMBOL(ieee802154_nl_start_confirm);
295
296static int ieee802154_nl_fill_iface(struct sk_buff *msg, u32 pid,
297 u32 seq, int flags, struct net_device *dev)
298{
299 void *hdr;
300
301 pr_debug("%s\n", __func__);
302
303 hdr = genlmsg_put(msg, 0, seq, &ieee802154_coordinator_family, flags,
304 IEEE802154_LIST_IFACE);
305 if (!hdr)
306 goto out;
307
308 NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name);
309 NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex);
310
311 NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN,
312 dev->dev_addr);
313 NLA_PUT_U16(msg, IEEE802154_ATTR_SHORT_ADDR,
314 ieee802154_mlme_ops(dev)->get_short_addr(dev));
315 NLA_PUT_U16(msg, IEEE802154_ATTR_PAN_ID,
316 ieee802154_mlme_ops(dev)->get_pan_id(dev));
317 return genlmsg_end(msg, hdr);
318
319nla_put_failure:
320 genlmsg_cancel(msg, hdr);
321out:
322 return -EMSGSIZE;
323}
324
325/* Requests from userspace */
326static struct net_device *ieee802154_nl_get_dev(struct genl_info *info)
327{
328 struct net_device *dev;
329
330 if (info->attrs[IEEE802154_ATTR_DEV_NAME]) {
331 char name[IFNAMSIZ + 1];
332 nla_strlcpy(name, info->attrs[IEEE802154_ATTR_DEV_NAME],
333 sizeof(name));
334 dev = dev_get_by_name(&init_net, name);
335 } else if (info->attrs[IEEE802154_ATTR_DEV_INDEX])
336 dev = dev_get_by_index(&init_net,
337 nla_get_u32(info->attrs[IEEE802154_ATTR_DEV_INDEX]));
338 else
339 return NULL;
340
341 if (!dev)
342 return NULL;
343
344 if (dev->type != ARPHRD_IEEE802154) {
345 dev_put(dev);
346 return NULL;
347 }
348
349 return dev;
350}
351
352static int ieee802154_associate_req(struct sk_buff *skb,
353 struct genl_info *info)
354{
355 struct net_device *dev;
356 struct ieee802154_addr addr;
357 u8 page;
358 int ret = -EINVAL;
359
360 if (!info->attrs[IEEE802154_ATTR_CHANNEL] ||
361 !info->attrs[IEEE802154_ATTR_COORD_PAN_ID] ||
362 (!info->attrs[IEEE802154_ATTR_COORD_HW_ADDR] &&
363 !info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR]) ||
364 !info->attrs[IEEE802154_ATTR_CAPABILITY])
365 return -EINVAL;
366
367 dev = ieee802154_nl_get_dev(info);
368 if (!dev)
369 return -ENODEV;
370
371 if (info->attrs[IEEE802154_ATTR_COORD_HW_ADDR]) {
372 addr.addr_type = IEEE802154_ADDR_LONG;
373 nla_memcpy(addr.hwaddr,
374 info->attrs[IEEE802154_ATTR_COORD_HW_ADDR],
375 IEEE802154_ADDR_LEN);
376 } else {
377 addr.addr_type = IEEE802154_ADDR_SHORT;
378 addr.short_addr = nla_get_u16(
379 info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR]);
380 }
381 addr.pan_id = nla_get_u16(info->attrs[IEEE802154_ATTR_COORD_PAN_ID]);
382
383 if (info->attrs[IEEE802154_ATTR_PAGE])
384 page = nla_get_u8(info->attrs[IEEE802154_ATTR_PAGE]);
385 else
386 page = 0;
387
388 ret = ieee802154_mlme_ops(dev)->assoc_req(dev, &addr,
389 nla_get_u8(info->attrs[IEEE802154_ATTR_CHANNEL]),
390 page,
391 nla_get_u8(info->attrs[IEEE802154_ATTR_CAPABILITY]));
392
393 dev_put(dev);
394 return ret;
395}
396
397static int ieee802154_associate_resp(struct sk_buff *skb,
398 struct genl_info *info)
399{
400 struct net_device *dev;
401 struct ieee802154_addr addr;
402 int ret = -EINVAL;
403
404 if (!info->attrs[IEEE802154_ATTR_STATUS] ||
405 !info->attrs[IEEE802154_ATTR_DEST_HW_ADDR] ||
406 !info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR])
407 return -EINVAL;
408
409 dev = ieee802154_nl_get_dev(info);
410 if (!dev)
411 return -ENODEV;
412
413 addr.addr_type = IEEE802154_ADDR_LONG;
414 nla_memcpy(addr.hwaddr, info->attrs[IEEE802154_ATTR_DEST_HW_ADDR],
415 IEEE802154_ADDR_LEN);
416 addr.pan_id = ieee802154_mlme_ops(dev)->get_pan_id(dev);
417
418
419 ret = ieee802154_mlme_ops(dev)->assoc_resp(dev, &addr,
420 nla_get_u16(info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR]),
421 nla_get_u8(info->attrs[IEEE802154_ATTR_STATUS]));
422
423 dev_put(dev);
424 return ret;
425}
426
427static int ieee802154_disassociate_req(struct sk_buff *skb,
428 struct genl_info *info)
429{
430 struct net_device *dev;
431 struct ieee802154_addr addr;
432 int ret = -EINVAL;
433
434 if ((!info->attrs[IEEE802154_ATTR_DEST_HW_ADDR] &&
435 !info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR]) ||
436 !info->attrs[IEEE802154_ATTR_REASON])
437 return -EINVAL;
438
439 dev = ieee802154_nl_get_dev(info);
440 if (!dev)
441 return -ENODEV;
442
443 if (info->attrs[IEEE802154_ATTR_DEST_HW_ADDR]) {
444 addr.addr_type = IEEE802154_ADDR_LONG;
445 nla_memcpy(addr.hwaddr,
446 info->attrs[IEEE802154_ATTR_DEST_HW_ADDR],
447 IEEE802154_ADDR_LEN);
448 } else {
449 addr.addr_type = IEEE802154_ADDR_SHORT;
450 addr.short_addr = nla_get_u16(
451 info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR]);
452 }
453 addr.pan_id = ieee802154_mlme_ops(dev)->get_pan_id(dev);
454
455 ret = ieee802154_mlme_ops(dev)->disassoc_req(dev, &addr,
456 nla_get_u8(info->attrs[IEEE802154_ATTR_REASON]));
457
458 dev_put(dev);
459 return ret;
460}
461
462/*
463 * PANid, channel, beacon_order = 15, superframe_order = 15,
464 * PAN_coordinator, battery_life_extension = 0,
465 * coord_realignment = 0, security_enable = 0
466*/
467static int ieee802154_start_req(struct sk_buff *skb, struct genl_info *info)
468{
469 struct net_device *dev;
470 struct ieee802154_addr addr;
471
472 u8 channel, bcn_ord, sf_ord;
473 u8 page;
474 int pan_coord, blx, coord_realign;
475 int ret;
476
477 if (!info->attrs[IEEE802154_ATTR_COORD_PAN_ID] ||
478 !info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR] ||
479 !info->attrs[IEEE802154_ATTR_CHANNEL] ||
480 !info->attrs[IEEE802154_ATTR_BCN_ORD] ||
481 !info->attrs[IEEE802154_ATTR_SF_ORD] ||
482 !info->attrs[IEEE802154_ATTR_PAN_COORD] ||
483 !info->attrs[IEEE802154_ATTR_BAT_EXT] ||
484 !info->attrs[IEEE802154_ATTR_COORD_REALIGN]
485 )
486 return -EINVAL;
487
488 dev = ieee802154_nl_get_dev(info);
489 if (!dev)
490 return -ENODEV;
491
492 addr.addr_type = IEEE802154_ADDR_SHORT;
493 addr.short_addr = nla_get_u16(
494 info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR]);
495 addr.pan_id = nla_get_u16(info->attrs[IEEE802154_ATTR_COORD_PAN_ID]);
496
497 channel = nla_get_u8(info->attrs[IEEE802154_ATTR_CHANNEL]);
498 bcn_ord = nla_get_u8(info->attrs[IEEE802154_ATTR_BCN_ORD]);
499 sf_ord = nla_get_u8(info->attrs[IEEE802154_ATTR_SF_ORD]);
500 pan_coord = nla_get_u8(info->attrs[IEEE802154_ATTR_PAN_COORD]);
501 blx = nla_get_u8(info->attrs[IEEE802154_ATTR_BAT_EXT]);
502 coord_realign = nla_get_u8(info->attrs[IEEE802154_ATTR_COORD_REALIGN]);
503
504 if (info->attrs[IEEE802154_ATTR_PAGE])
505 page = nla_get_u8(info->attrs[IEEE802154_ATTR_PAGE]);
506 else
507 page = 0;
508
509
510 if (addr.short_addr == IEEE802154_ADDR_BROADCAST) {
511 ieee802154_nl_start_confirm(dev, IEEE802154_NO_SHORT_ADDRESS);
512 dev_put(dev);
513 return -EINVAL;
514 }
515
516 ret = ieee802154_mlme_ops(dev)->start_req(dev, &addr, channel, page,
517 bcn_ord, sf_ord, pan_coord, blx, coord_realign);
518
519 dev_put(dev);
520 return ret;
521}
522
523static int ieee802154_scan_req(struct sk_buff *skb, struct genl_info *info)
524{
525 struct net_device *dev;
526 int ret;
527 u8 type;
528 u32 channels;
529 u8 duration;
530 u8 page;
531
532 if (!info->attrs[IEEE802154_ATTR_SCAN_TYPE] ||
533 !info->attrs[IEEE802154_ATTR_CHANNELS] ||
534 !info->attrs[IEEE802154_ATTR_DURATION])
535 return -EINVAL;
536
537 dev = ieee802154_nl_get_dev(info);
538 if (!dev)
539 return -ENODEV;
540
541 type = nla_get_u8(info->attrs[IEEE802154_ATTR_SCAN_TYPE]);
542 channels = nla_get_u32(info->attrs[IEEE802154_ATTR_CHANNELS]);
543 duration = nla_get_u8(info->attrs[IEEE802154_ATTR_DURATION]);
544
545 if (info->attrs[IEEE802154_ATTR_PAGE])
546 page = nla_get_u8(info->attrs[IEEE802154_ATTR_PAGE]);
547 else
548 page = 0;
549
550
551 ret = ieee802154_mlme_ops(dev)->scan_req(dev, type, channels, page,
552 duration);
553
554 dev_put(dev);
555 return ret;
556}
557
558static int ieee802154_list_iface(struct sk_buff *skb,
559 struct genl_info *info)
560{
561 /* Request for interface name, index, type, IEEE address,
562 PAN Id, short address */
563 struct sk_buff *msg;
564 struct net_device *dev = NULL;
565 int rc = -ENOBUFS;
566
567 pr_debug("%s\n", __func__);
568
569 dev = ieee802154_nl_get_dev(info);
570 if (!dev)
571 return -ENODEV;
572
573 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
574 if (!msg)
575 goto out_dev;
576
577 rc = ieee802154_nl_fill_iface(msg, info->snd_pid, info->snd_seq,
578 0, dev);
579 if (rc < 0)
580 goto out_free;
581
582 dev_put(dev);
583
584 return genlmsg_unicast(&init_net, msg, info->snd_pid);
585out_free:
586 nlmsg_free(msg);
587out_dev:
588 dev_put(dev);
589 return rc;
590
591}
592
593static int ieee802154_dump_iface(struct sk_buff *skb,
594 struct netlink_callback *cb)
595{
596 struct net *net = sock_net(skb->sk);
597 struct net_device *dev;
598 int idx;
599 int s_idx = cb->args[0];
600
601 pr_debug("%s\n", __func__);
602
603 idx = 0;
604 for_each_netdev(net, dev) {
605 if (idx < s_idx || (dev->type != ARPHRD_IEEE802154))
606 goto cont;
607
608 if (ieee802154_nl_fill_iface(skb, NETLINK_CB(cb->skb).pid,
609 cb->nlh->nlmsg_seq, NLM_F_MULTI, dev) < 0)
610 break;
611cont:
612 idx++;
613 }
614 cb->args[0] = idx;
615
616 return skb->len;
617}
618
619#define IEEE802154_OP(_cmd, _func) \
620 { \
621 .cmd = _cmd, \
622 .policy = ieee802154_policy, \
623 .doit = _func, \
624 .dumpit = NULL, \
625 .flags = GENL_ADMIN_PERM, \
626 }
627
628#define IEEE802154_DUMP(_cmd, _func, _dump) \
629 { \
630 .cmd = _cmd, \
631 .policy = ieee802154_policy, \
632 .doit = _func, \
633 .dumpit = _dump, \
634 }
635
636static struct genl_ops ieee802154_coordinator_ops[] = {
637 IEEE802154_OP(IEEE802154_ASSOCIATE_REQ, ieee802154_associate_req),
638 IEEE802154_OP(IEEE802154_ASSOCIATE_RESP, ieee802154_associate_resp),
639 IEEE802154_OP(IEEE802154_DISASSOCIATE_REQ, ieee802154_disassociate_req),
640 IEEE802154_OP(IEEE802154_SCAN_REQ, ieee802154_scan_req),
641 IEEE802154_OP(IEEE802154_START_REQ, ieee802154_start_req),
642 IEEE802154_DUMP(IEEE802154_LIST_IFACE, ieee802154_list_iface,
643 ieee802154_dump_iface),
644};
645
646int __init ieee802154_nl_init(void) 78int __init ieee802154_nl_init(void)
647{ 79{
648 int rc; 80 int rc;
649 int i;
650 81
651 rc = genl_register_family(&ieee802154_coordinator_family); 82 rc = genl_register_family(&nl802154_family);
652 if (rc) 83 if (rc)
653 goto fail; 84 goto fail;
654 85
655 rc = genl_register_mc_group(&ieee802154_coordinator_family, 86 rc = nl802154_mac_register();
656 &ieee802154_coord_mcgrp);
657 if (rc) 87 if (rc)
658 goto fail; 88 goto fail;
659 89
660 rc = genl_register_mc_group(&ieee802154_coordinator_family,
661 &ieee802154_beacon_mcgrp);
662 if (rc)
663 goto fail;
664
665
666 for (i = 0; i < ARRAY_SIZE(ieee802154_coordinator_ops); i++) {
667 rc = genl_register_ops(&ieee802154_coordinator_family,
668 &ieee802154_coordinator_ops[i]);
669 if (rc)
670 goto fail;
671 }
672
673 return 0; 90 return 0;
674 91
675fail: 92fail:
676 genl_unregister_family(&ieee802154_coordinator_family); 93 genl_unregister_family(&nl802154_family);
677 return rc; 94 return rc;
678} 95}
679 96
680void __exit ieee802154_nl_exit(void) 97void __exit ieee802154_nl_exit(void)
681{ 98{
682 genl_unregister_family(&ieee802154_coordinator_family); 99 genl_unregister_family(&nl802154_family);
683} 100}
684 101
diff --git a/net/ieee802154/nl-mac.c b/net/ieee802154/nl-mac.c
new file mode 100644
index 000000000000..e8816bf7c31e
--- /dev/null
+++ b/net/ieee802154/nl-mac.c
@@ -0,0 +1,609 @@
1/*
2 * Netlink inteface for IEEE 802.15.4 stack
3 *
4 * Copyright 2007, 2008 Siemens AG
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2
8 * as published by the Free Software Foundation.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License along
16 * with this program; if not, write to the Free Software Foundation, Inc.,
17 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Written by:
20 * Sergey Lapin <slapin@ossfans.org>
21 * Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
22 * Maxim Osipov <maxim.osipov@siemens.com>
23 */
24
25#include <linux/kernel.h>
26#include <linux/if_arp.h>
27#include <linux/netdevice.h>
28#include <net/netlink.h>
29#include <net/genetlink.h>
30#include <net/sock.h>
31#include <linux/nl802154.h>
32#include <net/af_ieee802154.h>
33#include <net/nl802154.h>
34#include <net/ieee802154.h>
35#include <net/ieee802154_netdev.h>
36
37#include "ieee802154.h"
38
39static struct genl_multicast_group ieee802154_coord_mcgrp = {
40 .name = IEEE802154_MCAST_COORD_NAME,
41};
42
43static struct genl_multicast_group ieee802154_beacon_mcgrp = {
44 .name = IEEE802154_MCAST_BEACON_NAME,
45};
46
47int ieee802154_nl_assoc_indic(struct net_device *dev,
48 struct ieee802154_addr *addr, u8 cap)
49{
50 struct sk_buff *msg;
51
52 pr_debug("%s\n", __func__);
53
54 if (addr->addr_type != IEEE802154_ADDR_LONG) {
55 pr_err("%s: received non-long source address!\n", __func__);
56 return -EINVAL;
57 }
58
59 msg = ieee802154_nl_create(0, IEEE802154_ASSOCIATE_INDIC);
60 if (!msg)
61 return -ENOBUFS;
62
63 NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name);
64 NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex);
65 NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN,
66 dev->dev_addr);
67
68 NLA_PUT(msg, IEEE802154_ATTR_SRC_HW_ADDR, IEEE802154_ADDR_LEN,
69 addr->hwaddr);
70
71 NLA_PUT_U8(msg, IEEE802154_ATTR_CAPABILITY, cap);
72
73 return ieee802154_nl_mcast(msg, ieee802154_coord_mcgrp.id);
74
75nla_put_failure:
76 nlmsg_free(msg);
77 return -ENOBUFS;
78}
79EXPORT_SYMBOL(ieee802154_nl_assoc_indic);
80
81int ieee802154_nl_assoc_confirm(struct net_device *dev, u16 short_addr,
82 u8 status)
83{
84 struct sk_buff *msg;
85
86 pr_debug("%s\n", __func__);
87
88 msg = ieee802154_nl_create(0, IEEE802154_ASSOCIATE_CONF);
89 if (!msg)
90 return -ENOBUFS;
91
92 NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name);
93 NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex);
94 NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN,
95 dev->dev_addr);
96
97 NLA_PUT_U16(msg, IEEE802154_ATTR_SHORT_ADDR, short_addr);
98 NLA_PUT_U8(msg, IEEE802154_ATTR_STATUS, status);
99
100 return ieee802154_nl_mcast(msg, ieee802154_coord_mcgrp.id);
101
102nla_put_failure:
103 nlmsg_free(msg);
104 return -ENOBUFS;
105}
106EXPORT_SYMBOL(ieee802154_nl_assoc_confirm);
107
108int ieee802154_nl_disassoc_indic(struct net_device *dev,
109 struct ieee802154_addr *addr, u8 reason)
110{
111 struct sk_buff *msg;
112
113 pr_debug("%s\n", __func__);
114
115 msg = ieee802154_nl_create(0, IEEE802154_DISASSOCIATE_INDIC);
116 if (!msg)
117 return -ENOBUFS;
118
119 NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name);
120 NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex);
121 NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN,
122 dev->dev_addr);
123
124 if (addr->addr_type == IEEE802154_ADDR_LONG)
125 NLA_PUT(msg, IEEE802154_ATTR_SRC_HW_ADDR, IEEE802154_ADDR_LEN,
126 addr->hwaddr);
127 else
128 NLA_PUT_U16(msg, IEEE802154_ATTR_SRC_SHORT_ADDR,
129 addr->short_addr);
130
131 NLA_PUT_U8(msg, IEEE802154_ATTR_REASON, reason);
132
133 return ieee802154_nl_mcast(msg, ieee802154_coord_mcgrp.id);
134
135nla_put_failure:
136 nlmsg_free(msg);
137 return -ENOBUFS;
138}
139EXPORT_SYMBOL(ieee802154_nl_disassoc_indic);
140
141int ieee802154_nl_disassoc_confirm(struct net_device *dev, u8 status)
142{
143 struct sk_buff *msg;
144
145 pr_debug("%s\n", __func__);
146
147 msg = ieee802154_nl_create(0, IEEE802154_DISASSOCIATE_CONF);
148 if (!msg)
149 return -ENOBUFS;
150
151 NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name);
152 NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex);
153 NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN,
154 dev->dev_addr);
155
156 NLA_PUT_U8(msg, IEEE802154_ATTR_STATUS, status);
157
158 return ieee802154_nl_mcast(msg, ieee802154_coord_mcgrp.id);
159
160nla_put_failure:
161 nlmsg_free(msg);
162 return -ENOBUFS;
163}
164EXPORT_SYMBOL(ieee802154_nl_disassoc_confirm);
165
166int ieee802154_nl_beacon_indic(struct net_device *dev,
167 u16 panid, u16 coord_addr)
168{
169 struct sk_buff *msg;
170
171 pr_debug("%s\n", __func__);
172
173 msg = ieee802154_nl_create(0, IEEE802154_BEACON_NOTIFY_INDIC);
174 if (!msg)
175 return -ENOBUFS;
176
177 NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name);
178 NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex);
179 NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN,
180 dev->dev_addr);
181 NLA_PUT_U16(msg, IEEE802154_ATTR_COORD_SHORT_ADDR, coord_addr);
182 NLA_PUT_U16(msg, IEEE802154_ATTR_COORD_PAN_ID, panid);
183
184 return ieee802154_nl_mcast(msg, ieee802154_coord_mcgrp.id);
185
186nla_put_failure:
187 nlmsg_free(msg);
188 return -ENOBUFS;
189}
190EXPORT_SYMBOL(ieee802154_nl_beacon_indic);
191
192int ieee802154_nl_scan_confirm(struct net_device *dev,
193 u8 status, u8 scan_type, u32 unscanned, u8 page,
194 u8 *edl/* , struct list_head *pan_desc_list */)
195{
196 struct sk_buff *msg;
197
198 pr_debug("%s\n", __func__);
199
200 msg = ieee802154_nl_create(0, IEEE802154_SCAN_CONF);
201 if (!msg)
202 return -ENOBUFS;
203
204 NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name);
205 NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex);
206 NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN,
207 dev->dev_addr);
208
209 NLA_PUT_U8(msg, IEEE802154_ATTR_STATUS, status);
210 NLA_PUT_U8(msg, IEEE802154_ATTR_SCAN_TYPE, scan_type);
211 NLA_PUT_U32(msg, IEEE802154_ATTR_CHANNELS, unscanned);
212 NLA_PUT_U8(msg, IEEE802154_ATTR_PAGE, page);
213
214 if (edl)
215 NLA_PUT(msg, IEEE802154_ATTR_ED_LIST, 27, edl);
216
217 return ieee802154_nl_mcast(msg, ieee802154_coord_mcgrp.id);
218
219nla_put_failure:
220 nlmsg_free(msg);
221 return -ENOBUFS;
222}
223EXPORT_SYMBOL(ieee802154_nl_scan_confirm);
224
225int ieee802154_nl_start_confirm(struct net_device *dev, u8 status)
226{
227 struct sk_buff *msg;
228
229 pr_debug("%s\n", __func__);
230
231 msg = ieee802154_nl_create(0, IEEE802154_START_CONF);
232 if (!msg)
233 return -ENOBUFS;
234
235 NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name);
236 NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex);
237 NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN,
238 dev->dev_addr);
239
240 NLA_PUT_U8(msg, IEEE802154_ATTR_STATUS, status);
241
242 return ieee802154_nl_mcast(msg, ieee802154_coord_mcgrp.id);
243
244nla_put_failure:
245 nlmsg_free(msg);
246 return -ENOBUFS;
247}
248EXPORT_SYMBOL(ieee802154_nl_start_confirm);
249
250static int ieee802154_nl_fill_iface(struct sk_buff *msg, u32 pid,
251 u32 seq, int flags, struct net_device *dev)
252{
253 void *hdr;
254
255 pr_debug("%s\n", __func__);
256
257 hdr = genlmsg_put(msg, 0, seq, &nl802154_family, flags,
258 IEEE802154_LIST_IFACE);
259 if (!hdr)
260 goto out;
261
262 NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name);
263 NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex);
264
265 NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN,
266 dev->dev_addr);
267 NLA_PUT_U16(msg, IEEE802154_ATTR_SHORT_ADDR,
268 ieee802154_mlme_ops(dev)->get_short_addr(dev));
269 NLA_PUT_U16(msg, IEEE802154_ATTR_PAN_ID,
270 ieee802154_mlme_ops(dev)->get_pan_id(dev));
271 return genlmsg_end(msg, hdr);
272
273nla_put_failure:
274 genlmsg_cancel(msg, hdr);
275out:
276 return -EMSGSIZE;
277}
278
279/* Requests from userspace */
280static struct net_device *ieee802154_nl_get_dev(struct genl_info *info)
281{
282 struct net_device *dev;
283
284 if (info->attrs[IEEE802154_ATTR_DEV_NAME]) {
285 char name[IFNAMSIZ + 1];
286 nla_strlcpy(name, info->attrs[IEEE802154_ATTR_DEV_NAME],
287 sizeof(name));
288 dev = dev_get_by_name(&init_net, name);
289 } else if (info->attrs[IEEE802154_ATTR_DEV_INDEX])
290 dev = dev_get_by_index(&init_net,
291 nla_get_u32(info->attrs[IEEE802154_ATTR_DEV_INDEX]));
292 else
293 return NULL;
294
295 if (!dev)
296 return NULL;
297
298 if (dev->type != ARPHRD_IEEE802154) {
299 dev_put(dev);
300 return NULL;
301 }
302
303 return dev;
304}
305
306static int ieee802154_associate_req(struct sk_buff *skb,
307 struct genl_info *info)
308{
309 struct net_device *dev;
310 struct ieee802154_addr addr;
311 u8 page;
312 int ret = -EINVAL;
313
314 if (!info->attrs[IEEE802154_ATTR_CHANNEL] ||
315 !info->attrs[IEEE802154_ATTR_COORD_PAN_ID] ||
316 (!info->attrs[IEEE802154_ATTR_COORD_HW_ADDR] &&
317 !info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR]) ||
318 !info->attrs[IEEE802154_ATTR_CAPABILITY])
319 return -EINVAL;
320
321 dev = ieee802154_nl_get_dev(info);
322 if (!dev)
323 return -ENODEV;
324
325 if (info->attrs[IEEE802154_ATTR_COORD_HW_ADDR]) {
326 addr.addr_type = IEEE802154_ADDR_LONG;
327 nla_memcpy(addr.hwaddr,
328 info->attrs[IEEE802154_ATTR_COORD_HW_ADDR],
329 IEEE802154_ADDR_LEN);
330 } else {
331 addr.addr_type = IEEE802154_ADDR_SHORT;
332 addr.short_addr = nla_get_u16(
333 info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR]);
334 }
335 addr.pan_id = nla_get_u16(info->attrs[IEEE802154_ATTR_COORD_PAN_ID]);
336
337 if (info->attrs[IEEE802154_ATTR_PAGE])
338 page = nla_get_u8(info->attrs[IEEE802154_ATTR_PAGE]);
339 else
340 page = 0;
341
342 ret = ieee802154_mlme_ops(dev)->assoc_req(dev, &addr,
343 nla_get_u8(info->attrs[IEEE802154_ATTR_CHANNEL]),
344 page,
345 nla_get_u8(info->attrs[IEEE802154_ATTR_CAPABILITY]));
346
347 dev_put(dev);
348 return ret;
349}
350
351static int ieee802154_associate_resp(struct sk_buff *skb,
352 struct genl_info *info)
353{
354 struct net_device *dev;
355 struct ieee802154_addr addr;
356 int ret = -EINVAL;
357
358 if (!info->attrs[IEEE802154_ATTR_STATUS] ||
359 !info->attrs[IEEE802154_ATTR_DEST_HW_ADDR] ||
360 !info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR])
361 return -EINVAL;
362
363 dev = ieee802154_nl_get_dev(info);
364 if (!dev)
365 return -ENODEV;
366
367 addr.addr_type = IEEE802154_ADDR_LONG;
368 nla_memcpy(addr.hwaddr, info->attrs[IEEE802154_ATTR_DEST_HW_ADDR],
369 IEEE802154_ADDR_LEN);
370 addr.pan_id = ieee802154_mlme_ops(dev)->get_pan_id(dev);
371
372
373 ret = ieee802154_mlme_ops(dev)->assoc_resp(dev, &addr,
374 nla_get_u16(info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR]),
375 nla_get_u8(info->attrs[IEEE802154_ATTR_STATUS]));
376
377 dev_put(dev);
378 return ret;
379}
380
381static int ieee802154_disassociate_req(struct sk_buff *skb,
382 struct genl_info *info)
383{
384 struct net_device *dev;
385 struct ieee802154_addr addr;
386 int ret = -EINVAL;
387
388 if ((!info->attrs[IEEE802154_ATTR_DEST_HW_ADDR] &&
389 !info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR]) ||
390 !info->attrs[IEEE802154_ATTR_REASON])
391 return -EINVAL;
392
393 dev = ieee802154_nl_get_dev(info);
394 if (!dev)
395 return -ENODEV;
396
397 if (info->attrs[IEEE802154_ATTR_DEST_HW_ADDR]) {
398 addr.addr_type = IEEE802154_ADDR_LONG;
399 nla_memcpy(addr.hwaddr,
400 info->attrs[IEEE802154_ATTR_DEST_HW_ADDR],
401 IEEE802154_ADDR_LEN);
402 } else {
403 addr.addr_type = IEEE802154_ADDR_SHORT;
404 addr.short_addr = nla_get_u16(
405 info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR]);
406 }
407 addr.pan_id = ieee802154_mlme_ops(dev)->get_pan_id(dev);
408
409 ret = ieee802154_mlme_ops(dev)->disassoc_req(dev, &addr,
410 nla_get_u8(info->attrs[IEEE802154_ATTR_REASON]));
411
412 dev_put(dev);
413 return ret;
414}
415
416/*
417 * PANid, channel, beacon_order = 15, superframe_order = 15,
418 * PAN_coordinator, battery_life_extension = 0,
419 * coord_realignment = 0, security_enable = 0
420*/
421static int ieee802154_start_req(struct sk_buff *skb, struct genl_info *info)
422{
423 struct net_device *dev;
424 struct ieee802154_addr addr;
425
426 u8 channel, bcn_ord, sf_ord;
427 u8 page;
428 int pan_coord, blx, coord_realign;
429 int ret;
430
431 if (!info->attrs[IEEE802154_ATTR_COORD_PAN_ID] ||
432 !info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR] ||
433 !info->attrs[IEEE802154_ATTR_CHANNEL] ||
434 !info->attrs[IEEE802154_ATTR_BCN_ORD] ||
435 !info->attrs[IEEE802154_ATTR_SF_ORD] ||
436 !info->attrs[IEEE802154_ATTR_PAN_COORD] ||
437 !info->attrs[IEEE802154_ATTR_BAT_EXT] ||
438 !info->attrs[IEEE802154_ATTR_COORD_REALIGN]
439 )
440 return -EINVAL;
441
442 dev = ieee802154_nl_get_dev(info);
443 if (!dev)
444 return -ENODEV;
445
446 addr.addr_type = IEEE802154_ADDR_SHORT;
447 addr.short_addr = nla_get_u16(
448 info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR]);
449 addr.pan_id = nla_get_u16(info->attrs[IEEE802154_ATTR_COORD_PAN_ID]);
450
451 channel = nla_get_u8(info->attrs[IEEE802154_ATTR_CHANNEL]);
452 bcn_ord = nla_get_u8(info->attrs[IEEE802154_ATTR_BCN_ORD]);
453 sf_ord = nla_get_u8(info->attrs[IEEE802154_ATTR_SF_ORD]);
454 pan_coord = nla_get_u8(info->attrs[IEEE802154_ATTR_PAN_COORD]);
455 blx = nla_get_u8(info->attrs[IEEE802154_ATTR_BAT_EXT]);
456 coord_realign = nla_get_u8(info->attrs[IEEE802154_ATTR_COORD_REALIGN]);
457
458 if (info->attrs[IEEE802154_ATTR_PAGE])
459 page = nla_get_u8(info->attrs[IEEE802154_ATTR_PAGE]);
460 else
461 page = 0;
462
463
464 if (addr.short_addr == IEEE802154_ADDR_BROADCAST) {
465 ieee802154_nl_start_confirm(dev, IEEE802154_NO_SHORT_ADDRESS);
466 dev_put(dev);
467 return -EINVAL;
468 }
469
470 ret = ieee802154_mlme_ops(dev)->start_req(dev, &addr, channel, page,
471 bcn_ord, sf_ord, pan_coord, blx, coord_realign);
472
473 dev_put(dev);
474 return ret;
475}
476
477static int ieee802154_scan_req(struct sk_buff *skb, struct genl_info *info)
478{
479 struct net_device *dev;
480 int ret;
481 u8 type;
482 u32 channels;
483 u8 duration;
484 u8 page;
485
486 if (!info->attrs[IEEE802154_ATTR_SCAN_TYPE] ||
487 !info->attrs[IEEE802154_ATTR_CHANNELS] ||
488 !info->attrs[IEEE802154_ATTR_DURATION])
489 return -EINVAL;
490
491 dev = ieee802154_nl_get_dev(info);
492 if (!dev)
493 return -ENODEV;
494
495 type = nla_get_u8(info->attrs[IEEE802154_ATTR_SCAN_TYPE]);
496 channels = nla_get_u32(info->attrs[IEEE802154_ATTR_CHANNELS]);
497 duration = nla_get_u8(info->attrs[IEEE802154_ATTR_DURATION]);
498
499 if (info->attrs[IEEE802154_ATTR_PAGE])
500 page = nla_get_u8(info->attrs[IEEE802154_ATTR_PAGE]);
501 else
502 page = 0;
503
504
505 ret = ieee802154_mlme_ops(dev)->scan_req(dev, type, channels, page,
506 duration);
507
508 dev_put(dev);
509 return ret;
510}
511
512static int ieee802154_list_iface(struct sk_buff *skb,
513 struct genl_info *info)
514{
515 /* Request for interface name, index, type, IEEE address,
516 PAN Id, short address */
517 struct sk_buff *msg;
518 struct net_device *dev = NULL;
519 int rc = -ENOBUFS;
520
521 pr_debug("%s\n", __func__);
522
523 dev = ieee802154_nl_get_dev(info);
524 if (!dev)
525 return -ENODEV;
526
527 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
528 if (!msg)
529 goto out_dev;
530
531 rc = ieee802154_nl_fill_iface(msg, info->snd_pid, info->snd_seq,
532 0, dev);
533 if (rc < 0)
534 goto out_free;
535
536 dev_put(dev);
537
538 return genlmsg_reply(msg, info);
539out_free:
540 nlmsg_free(msg);
541out_dev:
542 dev_put(dev);
543 return rc;
544
545}
546
547static int ieee802154_dump_iface(struct sk_buff *skb,
548 struct netlink_callback *cb)
549{
550 struct net *net = sock_net(skb->sk);
551 struct net_device *dev;
552 int idx;
553 int s_idx = cb->args[0];
554
555 pr_debug("%s\n", __func__);
556
557 idx = 0;
558 for_each_netdev(net, dev) {
559 if (idx < s_idx || (dev->type != ARPHRD_IEEE802154))
560 goto cont;
561
562 if (ieee802154_nl_fill_iface(skb, NETLINK_CB(cb->skb).pid,
563 cb->nlh->nlmsg_seq, NLM_F_MULTI, dev) < 0)
564 break;
565cont:
566 idx++;
567 }
568 cb->args[0] = idx;
569
570 return skb->len;
571}
572
573static struct genl_ops ieee802154_coordinator_ops[] = {
574 IEEE802154_OP(IEEE802154_ASSOCIATE_REQ, ieee802154_associate_req),
575 IEEE802154_OP(IEEE802154_ASSOCIATE_RESP, ieee802154_associate_resp),
576 IEEE802154_OP(IEEE802154_DISASSOCIATE_REQ, ieee802154_disassociate_req),
577 IEEE802154_OP(IEEE802154_SCAN_REQ, ieee802154_scan_req),
578 IEEE802154_OP(IEEE802154_START_REQ, ieee802154_start_req),
579 IEEE802154_DUMP(IEEE802154_LIST_IFACE, ieee802154_list_iface,
580 ieee802154_dump_iface),
581};
582
583/*
584 * No need to unregister as family unregistration will do it.
585 */
586int nl802154_mac_register(void)
587{
588 int i;
589 int rc;
590
591 rc = genl_register_mc_group(&nl802154_family,
592 &ieee802154_coord_mcgrp);
593 if (rc)
594 return rc;
595
596 rc = genl_register_mc_group(&nl802154_family,
597 &ieee802154_beacon_mcgrp);
598 if (rc)
599 return rc;
600
601 for (i = 0; i < ARRAY_SIZE(ieee802154_coordinator_ops); i++) {
602 rc = genl_register_ops(&nl802154_family,
603 &ieee802154_coordinator_ops[i]);
604 if (rc)
605 return rc;
606 }
607
608 return 0;
609}
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-13 05:09:25 -0500