Dmitry Eremin-Solenikov | 78fe738 | 2009-09-14 18:17:36 +0400 | [diff] [blame] | 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 | |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 25 | #include <linux/gfp.h> |
Dmitry Eremin-Solenikov | 78fe738 | 2009-09-14 18:17:36 +0400 | [diff] [blame] | 26 | #include <linux/kernel.h> |
| 27 | #include <linux/if_arp.h> |
| 28 | #include <linux/netdevice.h> |
| 29 | #include <net/netlink.h> |
| 30 | #include <net/genetlink.h> |
| 31 | #include <net/sock.h> |
| 32 | #include <linux/nl802154.h> |
| 33 | #include <net/af_ieee802154.h> |
| 34 | #include <net/nl802154.h> |
| 35 | #include <net/ieee802154.h> |
| 36 | #include <net/ieee802154_netdev.h> |
Dmitry Eremin-Solenikov | 0a868b26 | 2009-10-29 16:28:52 +0300 | [diff] [blame] | 37 | #include <net/wpan-phy.h> |
Dmitry Eremin-Solenikov | 78fe738 | 2009-09-14 18:17:36 +0400 | [diff] [blame] | 38 | |
| 39 | #include "ieee802154.h" |
| 40 | |
| 41 | static struct genl_multicast_group ieee802154_coord_mcgrp = { |
| 42 | .name = IEEE802154_MCAST_COORD_NAME, |
| 43 | }; |
| 44 | |
| 45 | static struct genl_multicast_group ieee802154_beacon_mcgrp = { |
| 46 | .name = IEEE802154_MCAST_BEACON_NAME, |
| 47 | }; |
| 48 | |
| 49 | int ieee802154_nl_assoc_indic(struct net_device *dev, |
| 50 | struct ieee802154_addr *addr, u8 cap) |
| 51 | { |
| 52 | struct sk_buff *msg; |
| 53 | |
| 54 | pr_debug("%s\n", __func__); |
| 55 | |
| 56 | if (addr->addr_type != IEEE802154_ADDR_LONG) { |
| 57 | pr_err("%s: received non-long source address!\n", __func__); |
| 58 | return -EINVAL; |
| 59 | } |
| 60 | |
| 61 | msg = ieee802154_nl_create(0, IEEE802154_ASSOCIATE_INDIC); |
| 62 | if (!msg) |
| 63 | return -ENOBUFS; |
| 64 | |
| 65 | NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name); |
| 66 | NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex); |
| 67 | NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN, |
| 68 | dev->dev_addr); |
| 69 | |
| 70 | NLA_PUT(msg, IEEE802154_ATTR_SRC_HW_ADDR, IEEE802154_ADDR_LEN, |
| 71 | addr->hwaddr); |
| 72 | |
| 73 | NLA_PUT_U8(msg, IEEE802154_ATTR_CAPABILITY, cap); |
| 74 | |
| 75 | return ieee802154_nl_mcast(msg, ieee802154_coord_mcgrp.id); |
| 76 | |
| 77 | nla_put_failure: |
| 78 | nlmsg_free(msg); |
| 79 | return -ENOBUFS; |
| 80 | } |
| 81 | EXPORT_SYMBOL(ieee802154_nl_assoc_indic); |
| 82 | |
| 83 | int ieee802154_nl_assoc_confirm(struct net_device *dev, u16 short_addr, |
| 84 | u8 status) |
| 85 | { |
| 86 | struct sk_buff *msg; |
| 87 | |
| 88 | pr_debug("%s\n", __func__); |
| 89 | |
| 90 | msg = ieee802154_nl_create(0, IEEE802154_ASSOCIATE_CONF); |
| 91 | if (!msg) |
| 92 | return -ENOBUFS; |
| 93 | |
| 94 | NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name); |
| 95 | NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex); |
| 96 | NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN, |
| 97 | dev->dev_addr); |
| 98 | |
| 99 | NLA_PUT_U16(msg, IEEE802154_ATTR_SHORT_ADDR, short_addr); |
| 100 | NLA_PUT_U8(msg, IEEE802154_ATTR_STATUS, status); |
| 101 | |
| 102 | return ieee802154_nl_mcast(msg, ieee802154_coord_mcgrp.id); |
| 103 | |
| 104 | nla_put_failure: |
| 105 | nlmsg_free(msg); |
| 106 | return -ENOBUFS; |
| 107 | } |
| 108 | EXPORT_SYMBOL(ieee802154_nl_assoc_confirm); |
| 109 | |
| 110 | int ieee802154_nl_disassoc_indic(struct net_device *dev, |
| 111 | struct ieee802154_addr *addr, u8 reason) |
| 112 | { |
| 113 | struct sk_buff *msg; |
| 114 | |
| 115 | pr_debug("%s\n", __func__); |
| 116 | |
| 117 | msg = ieee802154_nl_create(0, IEEE802154_DISASSOCIATE_INDIC); |
| 118 | if (!msg) |
| 119 | return -ENOBUFS; |
| 120 | |
| 121 | NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name); |
| 122 | NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex); |
| 123 | NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN, |
| 124 | dev->dev_addr); |
| 125 | |
| 126 | if (addr->addr_type == IEEE802154_ADDR_LONG) |
| 127 | NLA_PUT(msg, IEEE802154_ATTR_SRC_HW_ADDR, IEEE802154_ADDR_LEN, |
| 128 | addr->hwaddr); |
| 129 | else |
| 130 | NLA_PUT_U16(msg, IEEE802154_ATTR_SRC_SHORT_ADDR, |
| 131 | addr->short_addr); |
| 132 | |
| 133 | NLA_PUT_U8(msg, IEEE802154_ATTR_REASON, reason); |
| 134 | |
| 135 | return ieee802154_nl_mcast(msg, ieee802154_coord_mcgrp.id); |
| 136 | |
| 137 | nla_put_failure: |
| 138 | nlmsg_free(msg); |
| 139 | return -ENOBUFS; |
| 140 | } |
| 141 | EXPORT_SYMBOL(ieee802154_nl_disassoc_indic); |
| 142 | |
| 143 | int ieee802154_nl_disassoc_confirm(struct net_device *dev, u8 status) |
| 144 | { |
| 145 | struct sk_buff *msg; |
| 146 | |
| 147 | pr_debug("%s\n", __func__); |
| 148 | |
| 149 | msg = ieee802154_nl_create(0, IEEE802154_DISASSOCIATE_CONF); |
| 150 | if (!msg) |
| 151 | return -ENOBUFS; |
| 152 | |
| 153 | NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name); |
| 154 | NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex); |
| 155 | NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN, |
| 156 | dev->dev_addr); |
| 157 | |
| 158 | NLA_PUT_U8(msg, IEEE802154_ATTR_STATUS, status); |
| 159 | |
| 160 | return ieee802154_nl_mcast(msg, ieee802154_coord_mcgrp.id); |
| 161 | |
| 162 | nla_put_failure: |
| 163 | nlmsg_free(msg); |
| 164 | return -ENOBUFS; |
| 165 | } |
| 166 | EXPORT_SYMBOL(ieee802154_nl_disassoc_confirm); |
| 167 | |
| 168 | int ieee802154_nl_beacon_indic(struct net_device *dev, |
| 169 | u16 panid, u16 coord_addr) |
| 170 | { |
| 171 | struct sk_buff *msg; |
| 172 | |
| 173 | pr_debug("%s\n", __func__); |
| 174 | |
| 175 | msg = ieee802154_nl_create(0, IEEE802154_BEACON_NOTIFY_INDIC); |
| 176 | if (!msg) |
| 177 | return -ENOBUFS; |
| 178 | |
| 179 | NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name); |
| 180 | NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex); |
| 181 | NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN, |
| 182 | dev->dev_addr); |
| 183 | NLA_PUT_U16(msg, IEEE802154_ATTR_COORD_SHORT_ADDR, coord_addr); |
| 184 | NLA_PUT_U16(msg, IEEE802154_ATTR_COORD_PAN_ID, panid); |
| 185 | |
| 186 | return ieee802154_nl_mcast(msg, ieee802154_coord_mcgrp.id); |
| 187 | |
| 188 | nla_put_failure: |
| 189 | nlmsg_free(msg); |
| 190 | return -ENOBUFS; |
| 191 | } |
| 192 | EXPORT_SYMBOL(ieee802154_nl_beacon_indic); |
| 193 | |
| 194 | int ieee802154_nl_scan_confirm(struct net_device *dev, |
| 195 | u8 status, u8 scan_type, u32 unscanned, u8 page, |
| 196 | u8 *edl/* , struct list_head *pan_desc_list */) |
| 197 | { |
| 198 | struct sk_buff *msg; |
| 199 | |
| 200 | pr_debug("%s\n", __func__); |
| 201 | |
| 202 | msg = ieee802154_nl_create(0, IEEE802154_SCAN_CONF); |
| 203 | if (!msg) |
| 204 | return -ENOBUFS; |
| 205 | |
| 206 | NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name); |
| 207 | NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex); |
| 208 | NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN, |
| 209 | dev->dev_addr); |
| 210 | |
| 211 | NLA_PUT_U8(msg, IEEE802154_ATTR_STATUS, status); |
| 212 | NLA_PUT_U8(msg, IEEE802154_ATTR_SCAN_TYPE, scan_type); |
| 213 | NLA_PUT_U32(msg, IEEE802154_ATTR_CHANNELS, unscanned); |
| 214 | NLA_PUT_U8(msg, IEEE802154_ATTR_PAGE, page); |
| 215 | |
| 216 | if (edl) |
| 217 | NLA_PUT(msg, IEEE802154_ATTR_ED_LIST, 27, edl); |
| 218 | |
| 219 | return ieee802154_nl_mcast(msg, ieee802154_coord_mcgrp.id); |
| 220 | |
| 221 | nla_put_failure: |
| 222 | nlmsg_free(msg); |
| 223 | return -ENOBUFS; |
| 224 | } |
| 225 | EXPORT_SYMBOL(ieee802154_nl_scan_confirm); |
| 226 | |
| 227 | int ieee802154_nl_start_confirm(struct net_device *dev, u8 status) |
| 228 | { |
| 229 | struct sk_buff *msg; |
| 230 | |
| 231 | pr_debug("%s\n", __func__); |
| 232 | |
| 233 | msg = ieee802154_nl_create(0, IEEE802154_START_CONF); |
| 234 | if (!msg) |
| 235 | return -ENOBUFS; |
| 236 | |
| 237 | NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name); |
| 238 | NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex); |
| 239 | NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN, |
| 240 | dev->dev_addr); |
| 241 | |
| 242 | NLA_PUT_U8(msg, IEEE802154_ATTR_STATUS, status); |
| 243 | |
| 244 | return ieee802154_nl_mcast(msg, ieee802154_coord_mcgrp.id); |
| 245 | |
| 246 | nla_put_failure: |
| 247 | nlmsg_free(msg); |
| 248 | return -ENOBUFS; |
| 249 | } |
| 250 | EXPORT_SYMBOL(ieee802154_nl_start_confirm); |
| 251 | |
| 252 | static int ieee802154_nl_fill_iface(struct sk_buff *msg, u32 pid, |
| 253 | u32 seq, int flags, struct net_device *dev) |
| 254 | { |
| 255 | void *hdr; |
Dmitry Eremin-Solenikov | 0a868b26 | 2009-10-29 16:28:52 +0300 | [diff] [blame] | 256 | struct wpan_phy *phy; |
Dmitry Eremin-Solenikov | 78fe738 | 2009-09-14 18:17:36 +0400 | [diff] [blame] | 257 | |
| 258 | pr_debug("%s\n", __func__); |
| 259 | |
| 260 | hdr = genlmsg_put(msg, 0, seq, &nl802154_family, flags, |
| 261 | IEEE802154_LIST_IFACE); |
| 262 | if (!hdr) |
| 263 | goto out; |
| 264 | |
Dmitry Eremin-Solenikov | 0a868b26 | 2009-10-29 16:28:52 +0300 | [diff] [blame] | 265 | phy = ieee802154_mlme_ops(dev)->get_phy(dev); |
| 266 | BUG_ON(!phy); |
| 267 | |
Dmitry Eremin-Solenikov | 78fe738 | 2009-09-14 18:17:36 +0400 | [diff] [blame] | 268 | NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name); |
Dmitry Eremin-Solenikov | 0a868b26 | 2009-10-29 16:28:52 +0300 | [diff] [blame] | 269 | NLA_PUT_STRING(msg, IEEE802154_ATTR_PHY_NAME, wpan_phy_name(phy)); |
Dmitry Eremin-Solenikov | 78fe738 | 2009-09-14 18:17:36 +0400 | [diff] [blame] | 270 | NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex); |
| 271 | |
| 272 | NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN, |
| 273 | dev->dev_addr); |
| 274 | NLA_PUT_U16(msg, IEEE802154_ATTR_SHORT_ADDR, |
| 275 | ieee802154_mlme_ops(dev)->get_short_addr(dev)); |
| 276 | NLA_PUT_U16(msg, IEEE802154_ATTR_PAN_ID, |
| 277 | ieee802154_mlme_ops(dev)->get_pan_id(dev)); |
Dmitry Eremin-Solenikov | 0a868b26 | 2009-10-29 16:28:52 +0300 | [diff] [blame] | 278 | wpan_phy_put(phy); |
Dmitry Eremin-Solenikov | 78fe738 | 2009-09-14 18:17:36 +0400 | [diff] [blame] | 279 | return genlmsg_end(msg, hdr); |
| 280 | |
| 281 | nla_put_failure: |
Dmitry Eremin-Solenikov | 0a868b26 | 2009-10-29 16:28:52 +0300 | [diff] [blame] | 282 | wpan_phy_put(phy); |
Dmitry Eremin-Solenikov | 78fe738 | 2009-09-14 18:17:36 +0400 | [diff] [blame] | 283 | genlmsg_cancel(msg, hdr); |
| 284 | out: |
| 285 | return -EMSGSIZE; |
| 286 | } |
| 287 | |
| 288 | /* Requests from userspace */ |
| 289 | static struct net_device *ieee802154_nl_get_dev(struct genl_info *info) |
| 290 | { |
| 291 | struct net_device *dev; |
| 292 | |
| 293 | if (info->attrs[IEEE802154_ATTR_DEV_NAME]) { |
| 294 | char name[IFNAMSIZ + 1]; |
| 295 | nla_strlcpy(name, info->attrs[IEEE802154_ATTR_DEV_NAME], |
| 296 | sizeof(name)); |
| 297 | dev = dev_get_by_name(&init_net, name); |
| 298 | } else if (info->attrs[IEEE802154_ATTR_DEV_INDEX]) |
| 299 | dev = dev_get_by_index(&init_net, |
| 300 | nla_get_u32(info->attrs[IEEE802154_ATTR_DEV_INDEX])); |
| 301 | else |
| 302 | return NULL; |
| 303 | |
| 304 | if (!dev) |
| 305 | return NULL; |
| 306 | |
| 307 | if (dev->type != ARPHRD_IEEE802154) { |
| 308 | dev_put(dev); |
| 309 | return NULL; |
| 310 | } |
| 311 | |
| 312 | return dev; |
| 313 | } |
| 314 | |
| 315 | static int ieee802154_associate_req(struct sk_buff *skb, |
| 316 | struct genl_info *info) |
| 317 | { |
| 318 | struct net_device *dev; |
| 319 | struct ieee802154_addr addr; |
| 320 | u8 page; |
| 321 | int ret = -EINVAL; |
| 322 | |
| 323 | if (!info->attrs[IEEE802154_ATTR_CHANNEL] || |
| 324 | !info->attrs[IEEE802154_ATTR_COORD_PAN_ID] || |
| 325 | (!info->attrs[IEEE802154_ATTR_COORD_HW_ADDR] && |
| 326 | !info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR]) || |
| 327 | !info->attrs[IEEE802154_ATTR_CAPABILITY]) |
| 328 | return -EINVAL; |
| 329 | |
| 330 | dev = ieee802154_nl_get_dev(info); |
| 331 | if (!dev) |
| 332 | return -ENODEV; |
| 333 | |
| 334 | if (info->attrs[IEEE802154_ATTR_COORD_HW_ADDR]) { |
| 335 | addr.addr_type = IEEE802154_ADDR_LONG; |
| 336 | nla_memcpy(addr.hwaddr, |
| 337 | info->attrs[IEEE802154_ATTR_COORD_HW_ADDR], |
| 338 | IEEE802154_ADDR_LEN); |
| 339 | } else { |
| 340 | addr.addr_type = IEEE802154_ADDR_SHORT; |
| 341 | addr.short_addr = nla_get_u16( |
| 342 | info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR]); |
| 343 | } |
| 344 | addr.pan_id = nla_get_u16(info->attrs[IEEE802154_ATTR_COORD_PAN_ID]); |
| 345 | |
| 346 | if (info->attrs[IEEE802154_ATTR_PAGE]) |
| 347 | page = nla_get_u8(info->attrs[IEEE802154_ATTR_PAGE]); |
| 348 | else |
| 349 | page = 0; |
| 350 | |
| 351 | ret = ieee802154_mlme_ops(dev)->assoc_req(dev, &addr, |
| 352 | nla_get_u8(info->attrs[IEEE802154_ATTR_CHANNEL]), |
| 353 | page, |
| 354 | nla_get_u8(info->attrs[IEEE802154_ATTR_CAPABILITY])); |
| 355 | |
| 356 | dev_put(dev); |
| 357 | return ret; |
| 358 | } |
| 359 | |
| 360 | static int ieee802154_associate_resp(struct sk_buff *skb, |
| 361 | struct genl_info *info) |
| 362 | { |
| 363 | struct net_device *dev; |
| 364 | struct ieee802154_addr addr; |
| 365 | int ret = -EINVAL; |
| 366 | |
| 367 | if (!info->attrs[IEEE802154_ATTR_STATUS] || |
| 368 | !info->attrs[IEEE802154_ATTR_DEST_HW_ADDR] || |
| 369 | !info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR]) |
| 370 | return -EINVAL; |
| 371 | |
| 372 | dev = ieee802154_nl_get_dev(info); |
| 373 | if (!dev) |
| 374 | return -ENODEV; |
| 375 | |
| 376 | addr.addr_type = IEEE802154_ADDR_LONG; |
| 377 | nla_memcpy(addr.hwaddr, info->attrs[IEEE802154_ATTR_DEST_HW_ADDR], |
| 378 | IEEE802154_ADDR_LEN); |
| 379 | addr.pan_id = ieee802154_mlme_ops(dev)->get_pan_id(dev); |
| 380 | |
| 381 | |
| 382 | ret = ieee802154_mlme_ops(dev)->assoc_resp(dev, &addr, |
| 383 | nla_get_u16(info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR]), |
| 384 | nla_get_u8(info->attrs[IEEE802154_ATTR_STATUS])); |
| 385 | |
| 386 | dev_put(dev); |
| 387 | return ret; |
| 388 | } |
| 389 | |
| 390 | static int ieee802154_disassociate_req(struct sk_buff *skb, |
| 391 | struct genl_info *info) |
| 392 | { |
| 393 | struct net_device *dev; |
| 394 | struct ieee802154_addr addr; |
| 395 | int ret = -EINVAL; |
| 396 | |
| 397 | if ((!info->attrs[IEEE802154_ATTR_DEST_HW_ADDR] && |
| 398 | !info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR]) || |
| 399 | !info->attrs[IEEE802154_ATTR_REASON]) |
| 400 | return -EINVAL; |
| 401 | |
| 402 | dev = ieee802154_nl_get_dev(info); |
| 403 | if (!dev) |
| 404 | return -ENODEV; |
| 405 | |
| 406 | if (info->attrs[IEEE802154_ATTR_DEST_HW_ADDR]) { |
| 407 | addr.addr_type = IEEE802154_ADDR_LONG; |
| 408 | nla_memcpy(addr.hwaddr, |
| 409 | info->attrs[IEEE802154_ATTR_DEST_HW_ADDR], |
| 410 | IEEE802154_ADDR_LEN); |
| 411 | } else { |
| 412 | addr.addr_type = IEEE802154_ADDR_SHORT; |
| 413 | addr.short_addr = nla_get_u16( |
| 414 | info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR]); |
| 415 | } |
| 416 | addr.pan_id = ieee802154_mlme_ops(dev)->get_pan_id(dev); |
| 417 | |
| 418 | ret = ieee802154_mlme_ops(dev)->disassoc_req(dev, &addr, |
| 419 | nla_get_u8(info->attrs[IEEE802154_ATTR_REASON])); |
| 420 | |
| 421 | dev_put(dev); |
| 422 | return ret; |
| 423 | } |
| 424 | |
| 425 | /* |
| 426 | * PANid, channel, beacon_order = 15, superframe_order = 15, |
| 427 | * PAN_coordinator, battery_life_extension = 0, |
| 428 | * coord_realignment = 0, security_enable = 0 |
| 429 | */ |
| 430 | static int ieee802154_start_req(struct sk_buff *skb, struct genl_info *info) |
| 431 | { |
| 432 | struct net_device *dev; |
| 433 | struct ieee802154_addr addr; |
| 434 | |
| 435 | u8 channel, bcn_ord, sf_ord; |
| 436 | u8 page; |
| 437 | int pan_coord, blx, coord_realign; |
| 438 | int ret; |
| 439 | |
| 440 | if (!info->attrs[IEEE802154_ATTR_COORD_PAN_ID] || |
| 441 | !info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR] || |
| 442 | !info->attrs[IEEE802154_ATTR_CHANNEL] || |
| 443 | !info->attrs[IEEE802154_ATTR_BCN_ORD] || |
| 444 | !info->attrs[IEEE802154_ATTR_SF_ORD] || |
| 445 | !info->attrs[IEEE802154_ATTR_PAN_COORD] || |
| 446 | !info->attrs[IEEE802154_ATTR_BAT_EXT] || |
| 447 | !info->attrs[IEEE802154_ATTR_COORD_REALIGN] |
| 448 | ) |
| 449 | return -EINVAL; |
| 450 | |
| 451 | dev = ieee802154_nl_get_dev(info); |
| 452 | if (!dev) |
| 453 | return -ENODEV; |
| 454 | |
| 455 | addr.addr_type = IEEE802154_ADDR_SHORT; |
| 456 | addr.short_addr = nla_get_u16( |
| 457 | info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR]); |
| 458 | addr.pan_id = nla_get_u16(info->attrs[IEEE802154_ATTR_COORD_PAN_ID]); |
| 459 | |
| 460 | channel = nla_get_u8(info->attrs[IEEE802154_ATTR_CHANNEL]); |
| 461 | bcn_ord = nla_get_u8(info->attrs[IEEE802154_ATTR_BCN_ORD]); |
| 462 | sf_ord = nla_get_u8(info->attrs[IEEE802154_ATTR_SF_ORD]); |
| 463 | pan_coord = nla_get_u8(info->attrs[IEEE802154_ATTR_PAN_COORD]); |
| 464 | blx = nla_get_u8(info->attrs[IEEE802154_ATTR_BAT_EXT]); |
| 465 | coord_realign = nla_get_u8(info->attrs[IEEE802154_ATTR_COORD_REALIGN]); |
| 466 | |
| 467 | if (info->attrs[IEEE802154_ATTR_PAGE]) |
| 468 | page = nla_get_u8(info->attrs[IEEE802154_ATTR_PAGE]); |
| 469 | else |
| 470 | page = 0; |
| 471 | |
| 472 | |
| 473 | if (addr.short_addr == IEEE802154_ADDR_BROADCAST) { |
| 474 | ieee802154_nl_start_confirm(dev, IEEE802154_NO_SHORT_ADDRESS); |
| 475 | dev_put(dev); |
| 476 | return -EINVAL; |
| 477 | } |
| 478 | |
| 479 | ret = ieee802154_mlme_ops(dev)->start_req(dev, &addr, channel, page, |
| 480 | bcn_ord, sf_ord, pan_coord, blx, coord_realign); |
| 481 | |
| 482 | dev_put(dev); |
| 483 | return ret; |
| 484 | } |
| 485 | |
| 486 | static int ieee802154_scan_req(struct sk_buff *skb, struct genl_info *info) |
| 487 | { |
| 488 | struct net_device *dev; |
| 489 | int ret; |
| 490 | u8 type; |
| 491 | u32 channels; |
| 492 | u8 duration; |
| 493 | u8 page; |
| 494 | |
| 495 | if (!info->attrs[IEEE802154_ATTR_SCAN_TYPE] || |
| 496 | !info->attrs[IEEE802154_ATTR_CHANNELS] || |
| 497 | !info->attrs[IEEE802154_ATTR_DURATION]) |
| 498 | return -EINVAL; |
| 499 | |
| 500 | dev = ieee802154_nl_get_dev(info); |
| 501 | if (!dev) |
| 502 | return -ENODEV; |
| 503 | |
| 504 | type = nla_get_u8(info->attrs[IEEE802154_ATTR_SCAN_TYPE]); |
| 505 | channels = nla_get_u32(info->attrs[IEEE802154_ATTR_CHANNELS]); |
| 506 | duration = nla_get_u8(info->attrs[IEEE802154_ATTR_DURATION]); |
| 507 | |
| 508 | if (info->attrs[IEEE802154_ATTR_PAGE]) |
| 509 | page = nla_get_u8(info->attrs[IEEE802154_ATTR_PAGE]); |
| 510 | else |
| 511 | page = 0; |
| 512 | |
| 513 | |
| 514 | ret = ieee802154_mlme_ops(dev)->scan_req(dev, type, channels, page, |
| 515 | duration); |
| 516 | |
| 517 | dev_put(dev); |
| 518 | return ret; |
| 519 | } |
| 520 | |
| 521 | static int ieee802154_list_iface(struct sk_buff *skb, |
| 522 | struct genl_info *info) |
| 523 | { |
| 524 | /* Request for interface name, index, type, IEEE address, |
| 525 | PAN Id, short address */ |
| 526 | struct sk_buff *msg; |
| 527 | struct net_device *dev = NULL; |
| 528 | int rc = -ENOBUFS; |
| 529 | |
| 530 | pr_debug("%s\n", __func__); |
| 531 | |
| 532 | dev = ieee802154_nl_get_dev(info); |
| 533 | if (!dev) |
| 534 | return -ENODEV; |
| 535 | |
| 536 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); |
| 537 | if (!msg) |
| 538 | goto out_dev; |
| 539 | |
| 540 | rc = ieee802154_nl_fill_iface(msg, info->snd_pid, info->snd_seq, |
| 541 | 0, dev); |
| 542 | if (rc < 0) |
| 543 | goto out_free; |
| 544 | |
| 545 | dev_put(dev); |
| 546 | |
| 547 | return genlmsg_reply(msg, info); |
| 548 | out_free: |
| 549 | nlmsg_free(msg); |
| 550 | out_dev: |
| 551 | dev_put(dev); |
| 552 | return rc; |
| 553 | |
| 554 | } |
| 555 | |
| 556 | static int ieee802154_dump_iface(struct sk_buff *skb, |
| 557 | struct netlink_callback *cb) |
| 558 | { |
| 559 | struct net *net = sock_net(skb->sk); |
| 560 | struct net_device *dev; |
| 561 | int idx; |
| 562 | int s_idx = cb->args[0]; |
| 563 | |
| 564 | pr_debug("%s\n", __func__); |
| 565 | |
| 566 | idx = 0; |
| 567 | for_each_netdev(net, dev) { |
| 568 | if (idx < s_idx || (dev->type != ARPHRD_IEEE802154)) |
| 569 | goto cont; |
| 570 | |
| 571 | if (ieee802154_nl_fill_iface(skb, NETLINK_CB(cb->skb).pid, |
| 572 | cb->nlh->nlmsg_seq, NLM_F_MULTI, dev) < 0) |
| 573 | break; |
| 574 | cont: |
| 575 | idx++; |
| 576 | } |
| 577 | cb->args[0] = idx; |
| 578 | |
| 579 | return skb->len; |
| 580 | } |
| 581 | |
| 582 | static struct genl_ops ieee802154_coordinator_ops[] = { |
| 583 | IEEE802154_OP(IEEE802154_ASSOCIATE_REQ, ieee802154_associate_req), |
| 584 | IEEE802154_OP(IEEE802154_ASSOCIATE_RESP, ieee802154_associate_resp), |
| 585 | IEEE802154_OP(IEEE802154_DISASSOCIATE_REQ, ieee802154_disassociate_req), |
| 586 | IEEE802154_OP(IEEE802154_SCAN_REQ, ieee802154_scan_req), |
| 587 | IEEE802154_OP(IEEE802154_START_REQ, ieee802154_start_req), |
| 588 | IEEE802154_DUMP(IEEE802154_LIST_IFACE, ieee802154_list_iface, |
| 589 | ieee802154_dump_iface), |
| 590 | }; |
| 591 | |
| 592 | /* |
| 593 | * No need to unregister as family unregistration will do it. |
| 594 | */ |
| 595 | int nl802154_mac_register(void) |
| 596 | { |
| 597 | int i; |
| 598 | int rc; |
| 599 | |
| 600 | rc = genl_register_mc_group(&nl802154_family, |
| 601 | &ieee802154_coord_mcgrp); |
| 602 | if (rc) |
| 603 | return rc; |
| 604 | |
| 605 | rc = genl_register_mc_group(&nl802154_family, |
| 606 | &ieee802154_beacon_mcgrp); |
| 607 | if (rc) |
| 608 | return rc; |
| 609 | |
| 610 | for (i = 0; i < ARRAY_SIZE(ieee802154_coordinator_ops); i++) { |
| 611 | rc = genl_register_ops(&nl802154_family, |
| 612 | &ieee802154_coordinator_ops[i]); |
| 613 | if (rc) |
| 614 | return rc; |
| 615 | } |
| 616 | |
| 617 | return 0; |
| 618 | } |