net/ieee802154/nl-mac.c

   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/gfp.h>
  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 <linux/export.h>
  34 #include <net/af_ieee802154.h>
  35 #include <net/nl802154.h>
  36 #include <net/ieee802154.h>
  37 #include <net/ieee802154_netdev.h>
  38 #include <net/wpan-phy.h>
  39
  40 #include "ieee802154.h"
  41
  42 static int nla_put_hwaddr(struct sk_buff *msg, int type, __le64 hwaddr)
  43 {
  44         return nla_put_u64(msg, type, swab64((__force u64)hwaddr));
  45 }
  46
  47 static __le64 nla_get_hwaddr(const struct nlattr *nla)
  48 {
  49         return ieee802154_devaddr_from_raw(nla_data(nla));
  50 }
  51
  52 static int nla_put_shortaddr(struct sk_buff *msg, int type, __le16 addr)
  53 {
  54         return nla_put_u16(msg, type, le16_to_cpu(addr));
  55 }
  56
  57 static __le16 nla_get_shortaddr(const struct nlattr *nla)
  58 {
  59         return cpu_to_le16(nla_get_u16(nla));
  60 }
  61
  62 int ieee802154_nl_assoc_indic(struct net_device *dev,
  63                 struct ieee802154_addr *addr, u8 cap)
  64 {
  65         struct sk_buff *msg;
  66
  67         pr_debug("%s\n", __func__);
  68
  69         if (addr->mode != IEEE802154_ADDR_LONG) {
  70                 pr_err("%s: received non-long source address!\n", __func__);
  71                 return -EINVAL;
  72         }
  73
  74         msg = ieee802154_nl_create(0, IEEE802154_ASSOCIATE_INDIC);
  75         if (!msg)
  76                 return -ENOBUFS;
  77
  78         if (nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, dev->name) ||
  79             nla_put_u32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex) ||
  80             nla_put(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN,
  81                     dev->dev_addr) ||
  82             nla_put_hwaddr(msg, IEEE802154_ATTR_SRC_HW_ADDR,
  83                            addr->extended_addr) ||
  84             nla_put_u8(msg, IEEE802154_ATTR_CAPABILITY, cap))
  85                 goto nla_put_failure;
  86
  87         return ieee802154_nl_mcast(msg, IEEE802154_COORD_MCGRP);
  88
  89 nla_put_failure:
  90         nlmsg_free(msg);
  91         return -ENOBUFS;
  92 }
  93 EXPORT_SYMBOL(ieee802154_nl_assoc_indic);
  94
  95 int ieee802154_nl_assoc_confirm(struct net_device *dev, __le16 short_addr,
  96                 u8 status)
  97 {
  98         struct sk_buff *msg;
  99
 100         pr_debug("%s\n", __func__);
 101
 102         msg = ieee802154_nl_create(0, IEEE802154_ASSOCIATE_CONF);
 103         if (!msg)
 104                 return -ENOBUFS;
 105
 106         if (nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, dev->name) ||
 107             nla_put_u32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex) ||
 108             nla_put(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN,
 109                     dev->dev_addr) ||
 110             nla_put_shortaddr(msg, IEEE802154_ATTR_SHORT_ADDR, short_addr) ||
 111             nla_put_u8(msg, IEEE802154_ATTR_STATUS, status))
 112                 goto nla_put_failure;
 113         return ieee802154_nl_mcast(msg, IEEE802154_COORD_MCGRP);
 114
 115 nla_put_failure:
 116         nlmsg_free(msg);
 117         return -ENOBUFS;
 118 }
 119 EXPORT_SYMBOL(ieee802154_nl_assoc_confirm);
 120
 121 int ieee802154_nl_disassoc_indic(struct net_device *dev,
 122                 struct ieee802154_addr *addr, u8 reason)
 123 {
 124         struct sk_buff *msg;
 125
 126         pr_debug("%s\n", __func__);
 127
 128         msg = ieee802154_nl_create(0, IEEE802154_DISASSOCIATE_INDIC);
 129         if (!msg)
 130                 return -ENOBUFS;
 131
 132         if (nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, dev->name) ||
 133             nla_put_u32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex) ||
 134             nla_put(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN,
 135                     dev->dev_addr))
 136                 goto nla_put_failure;
 137         if (addr->mode == IEEE802154_ADDR_LONG) {
 138                 if (nla_put_hwaddr(msg, IEEE802154_ATTR_SRC_HW_ADDR,
 139                                    addr->extended_addr))
 140                         goto nla_put_failure;
 141         } else {
 142                 if (nla_put_shortaddr(msg, IEEE802154_ATTR_SRC_SHORT_ADDR,
 143                                       addr->short_addr))
 144                         goto nla_put_failure;
 145         }
 146         if (nla_put_u8(msg, IEEE802154_ATTR_REASON, reason))
 147                 goto nla_put_failure;
 148         return ieee802154_nl_mcast(msg, IEEE802154_COORD_MCGRP);
 149
 150 nla_put_failure:
 151         nlmsg_free(msg);
 152         return -ENOBUFS;
 153 }
 154 EXPORT_SYMBOL(ieee802154_nl_disassoc_indic);
 155
 156 int ieee802154_nl_disassoc_confirm(struct net_device *dev, u8 status)
 157 {
 158         struct sk_buff *msg;
 159
 160         pr_debug("%s\n", __func__);
 161
 162         msg = ieee802154_nl_create(0, IEEE802154_DISASSOCIATE_CONF);
 163         if (!msg)
 164                 return -ENOBUFS;
 165
 166         if (nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, dev->name) ||
 167             nla_put_u32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex) ||
 168             nla_put(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN,
 169                     dev->dev_addr) ||
 170             nla_put_u8(msg, IEEE802154_ATTR_STATUS, status))
 171                 goto nla_put_failure;
 172         return ieee802154_nl_mcast(msg, IEEE802154_COORD_MCGRP);
 173
 174 nla_put_failure:
 175         nlmsg_free(msg);
 176         return -ENOBUFS;
 177 }
 178 EXPORT_SYMBOL(ieee802154_nl_disassoc_confirm);
 179
 180 int ieee802154_nl_beacon_indic(struct net_device *dev, __le16 panid,
 181                                __le16 coord_addr)
 182 {
 183         struct sk_buff *msg;
 184
 185         pr_debug("%s\n", __func__);
 186
 187         msg = ieee802154_nl_create(0, IEEE802154_BEACON_NOTIFY_INDIC);
 188         if (!msg)
 189                 return -ENOBUFS;
 190
 191         if (nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, dev->name) ||
 192             nla_put_u32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex) ||
 193             nla_put(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN,
 194                     dev->dev_addr) ||
 195             nla_put_shortaddr(msg, IEEE802154_ATTR_COORD_SHORT_ADDR,
 196                               coord_addr) ||
 197             nla_put_shortaddr(msg, IEEE802154_ATTR_COORD_PAN_ID, panid))
 198                 goto nla_put_failure;
 199         return ieee802154_nl_mcast(msg, IEEE802154_COORD_MCGRP);
 200
 201 nla_put_failure:
 202         nlmsg_free(msg);
 203         return -ENOBUFS;
 204 }
 205 EXPORT_SYMBOL(ieee802154_nl_beacon_indic);
 206
 207 int ieee802154_nl_scan_confirm(struct net_device *dev,
 208                 u8 status, u8 scan_type, u32 unscanned, u8 page,
 209                 u8 *edl/* , struct list_head *pan_desc_list */)
 210 {
 211         struct sk_buff *msg;
 212
 213         pr_debug("%s\n", __func__);
 214
 215         msg = ieee802154_nl_create(0, IEEE802154_SCAN_CONF);
 216         if (!msg)
 217                 return -ENOBUFS;
 218
 219         if (nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, dev->name) ||
 220             nla_put_u32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex) ||
 221             nla_put(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN,
 222                     dev->dev_addr) ||
 223             nla_put_u8(msg, IEEE802154_ATTR_STATUS, status) ||
 224             nla_put_u8(msg, IEEE802154_ATTR_SCAN_TYPE, scan_type) ||
 225             nla_put_u32(msg, IEEE802154_ATTR_CHANNELS, unscanned) ||
 226             nla_put_u8(msg, IEEE802154_ATTR_PAGE, page) ||
 227             (edl &&
 228              nla_put(msg, IEEE802154_ATTR_ED_LIST, 27, edl)))
 229                 goto nla_put_failure;
 230         return ieee802154_nl_mcast(msg, IEEE802154_COORD_MCGRP);
 231
 232 nla_put_failure:
 233         nlmsg_free(msg);
 234         return -ENOBUFS;
 235 }
 236 EXPORT_SYMBOL(ieee802154_nl_scan_confirm);
 237
 238 int ieee802154_nl_start_confirm(struct net_device *dev, u8 status)
 239 {
 240         struct sk_buff *msg;
 241
 242         pr_debug("%s\n", __func__);
 243
 244         msg = ieee802154_nl_create(0, IEEE802154_START_CONF);
 245         if (!msg)
 246                 return -ENOBUFS;
 247
 248         if (nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, dev->name) ||
 249             nla_put_u32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex) ||
 250             nla_put(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN,
 251                     dev->dev_addr) ||
 252             nla_put_u8(msg, IEEE802154_ATTR_STATUS, status))
 253                 goto nla_put_failure;
 254         return ieee802154_nl_mcast(msg, IEEE802154_COORD_MCGRP);
 255
 256 nla_put_failure:
 257         nlmsg_free(msg);
 258         return -ENOBUFS;
 259 }
 260 EXPORT_SYMBOL(ieee802154_nl_start_confirm);
 261
 262 static int ieee802154_nl_fill_iface(struct sk_buff *msg, u32 portid,
 263         u32 seq, int flags, struct net_device *dev)
 264 {
 265         void *hdr;
 266         struct wpan_phy *phy;
 267         struct ieee802154_mlme_ops *ops;
 268         __le16 short_addr, pan_id;
 269
 270         pr_debug("%s\n", __func__);
 271
 272         hdr = genlmsg_put(msg, 0, seq, &nl802154_family, flags,
 273                 IEEE802154_LIST_IFACE);
 274         if (!hdr)
 275                 goto out;
 276
 277         ops = ieee802154_mlme_ops(dev);
 278         phy = ops->get_phy(dev);
 279         BUG_ON(!phy);
 280
 281         short_addr = ops->get_short_addr(dev);
 282         pan_id = ops->get_pan_id(dev);
 283
 284         if (nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, dev->name) ||
 285             nla_put_string(msg, IEEE802154_ATTR_PHY_NAME, wpan_phy_name(phy)) ||
 286             nla_put_u32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex) ||
 287             nla_put(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN,
 288                     dev->dev_addr) ||
 289             nla_put_shortaddr(msg, IEEE802154_ATTR_SHORT_ADDR, short_addr) ||
 290             nla_put_shortaddr(msg, IEEE802154_ATTR_PAN_ID, pan_id))
 291                 goto nla_put_failure;
 292
 293         if (ops->get_mac_params) {
 294                 struct ieee802154_mac_params params;
 295
 296                 ops->get_mac_params(dev, &params);
 297
 298                 if (nla_put_s8(msg, IEEE802154_ATTR_TXPOWER,
 299                                params.transmit_power) ||
 300                     nla_put_u8(msg, IEEE802154_ATTR_LBT_ENABLED, params.lbt) ||
 301                     nla_put_u8(msg, IEEE802154_ATTR_CCA_MODE,
 302                                params.cca_mode) ||
 303                     nla_put_s32(msg, IEEE802154_ATTR_CCA_ED_LEVEL,
 304                                 params.cca_ed_level) ||
 305                     nla_put_u8(msg, IEEE802154_ATTR_CSMA_RETRIES,
 306                                params.csma_retries) ||
 307                     nla_put_u8(msg, IEEE802154_ATTR_CSMA_MIN_BE,
 308                                params.min_be) ||
 309                     nla_put_u8(msg, IEEE802154_ATTR_CSMA_MAX_BE,
 310                                params.max_be) ||
 311                     nla_put_s8(msg, IEEE802154_ATTR_FRAME_RETRIES,
 312                                params.frame_retries))
 313                         goto nla_put_failure;
 314         }
 315
 316         wpan_phy_put(phy);
 317         return genlmsg_end(msg, hdr);
 318
 319 nla_put_failure:
 320         wpan_phy_put(phy);
 321         genlmsg_cancel(msg, hdr);
 322 out:
 323         return -EMSGSIZE;
 324 }
 325
 326 /* Requests from userspace */
 327 static struct net_device *ieee802154_nl_get_dev(struct genl_info *info)
 328 {
 329         struct net_device *dev;
 330
 331         if (info->attrs[IEEE802154_ATTR_DEV_NAME]) {
 332                 char name[IFNAMSIZ + 1];
 333                 nla_strlcpy(name, info->attrs[IEEE802154_ATTR_DEV_NAME],
 334                                 sizeof(name));
 335                 dev = dev_get_by_name(&init_net, name);
 336         } else if (info->attrs[IEEE802154_ATTR_DEV_INDEX])
 337                 dev = dev_get_by_index(&init_net,
 338                         nla_get_u32(info->attrs[IEEE802154_ATTR_DEV_INDEX]));
 339         else
 340                 return NULL;
 341
 342         if (!dev)
 343                 return NULL;
 344
 345         if (dev->type != ARPHRD_IEEE802154) {
 346                 dev_put(dev);
 347                 return NULL;
 348         }
 349
 350         return dev;
 351 }
 352
 353 int ieee802154_associate_req(struct sk_buff *skb, struct genl_info *info)
 354 {
 355         struct net_device *dev;
 356         struct ieee802154_addr addr;
 357         u8 page;
 358         int ret = -EOPNOTSUPP;
 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         if (!ieee802154_mlme_ops(dev)->assoc_req)
 371                 goto out;
 372
 373         if (info->attrs[IEEE802154_ATTR_COORD_HW_ADDR]) {
 374                 addr.mode = IEEE802154_ADDR_LONG;
 375                 addr.extended_addr = nla_get_hwaddr(
 376                                 info->attrs[IEEE802154_ATTR_COORD_HW_ADDR]);
 377         } else {
 378                 addr.mode = IEEE802154_ADDR_SHORT;
 379                 addr.short_addr = nla_get_shortaddr(
 380                                 info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR]);
 381         }
 382         addr.pan_id = nla_get_shortaddr(
 383                         info->attrs[IEEE802154_ATTR_COORD_PAN_ID]);
 384
 385         if (info->attrs[IEEE802154_ATTR_PAGE])
 386                 page = nla_get_u8(info->attrs[IEEE802154_ATTR_PAGE]);
 387         else
 388                 page = 0;
 389
 390         ret = ieee802154_mlme_ops(dev)->assoc_req(dev, &addr,
 391                         nla_get_u8(info->attrs[IEEE802154_ATTR_CHANNEL]),
 392                         page,
 393                         nla_get_u8(info->attrs[IEEE802154_ATTR_CAPABILITY]));
 394
 395 out:
 396         dev_put(dev);
 397         return ret;
 398 }
 399
 400 int ieee802154_associate_resp(struct sk_buff *skb, struct genl_info *info)
 401 {
 402         struct net_device *dev;
 403         struct ieee802154_addr addr;
 404         int ret = -EOPNOTSUPP;
 405
 406         if (!info->attrs[IEEE802154_ATTR_STATUS] ||
 407             !info->attrs[IEEE802154_ATTR_DEST_HW_ADDR] ||
 408             !info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR])
 409                 return -EINVAL;
 410
 411         dev = ieee802154_nl_get_dev(info);
 412         if (!dev)
 413                 return -ENODEV;
 414         if (!ieee802154_mlme_ops(dev)->assoc_resp)
 415                 goto out;
 416
 417         addr.mode = IEEE802154_ADDR_LONG;
 418         addr.extended_addr = nla_get_hwaddr(
 419                         info->attrs[IEEE802154_ATTR_DEST_HW_ADDR]);
 420         addr.pan_id = ieee802154_mlme_ops(dev)->get_pan_id(dev);
 421
 422         ret = ieee802154_mlme_ops(dev)->assoc_resp(dev, &addr,
 423                 nla_get_shortaddr(info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR]),
 424                 nla_get_u8(info->attrs[IEEE802154_ATTR_STATUS]));
 425
 426 out:
 427         dev_put(dev);
 428         return ret;
 429 }
 430
 431 int ieee802154_disassociate_req(struct sk_buff *skb, struct genl_info *info)
 432 {
 433         struct net_device *dev;
 434         struct ieee802154_addr addr;
 435         int ret = -EOPNOTSUPP;
 436
 437         if ((!info->attrs[IEEE802154_ATTR_DEST_HW_ADDR] &&
 438                 !info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR]) ||
 439             !info->attrs[IEEE802154_ATTR_REASON])
 440                 return -EINVAL;
 441
 442         dev = ieee802154_nl_get_dev(info);
 443         if (!dev)
 444                 return -ENODEV;
 445         if (!ieee802154_mlme_ops(dev)->disassoc_req)
 446                 goto out;
 447
 448         if (info->attrs[IEEE802154_ATTR_DEST_HW_ADDR]) {
 449                 addr.mode = IEEE802154_ADDR_LONG;
 450                 addr.extended_addr = nla_get_hwaddr(
 451                                 info->attrs[IEEE802154_ATTR_DEST_HW_ADDR]);
 452         } else {
 453                 addr.mode = IEEE802154_ADDR_SHORT;
 454                 addr.short_addr = nla_get_shortaddr(
 455                                 info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR]);
 456         }
 457         addr.pan_id = ieee802154_mlme_ops(dev)->get_pan_id(dev);
 458
 459         ret = ieee802154_mlme_ops(dev)->disassoc_req(dev, &addr,
 460                         nla_get_u8(info->attrs[IEEE802154_ATTR_REASON]));
 461
 462 out:
 463         dev_put(dev);
 464         return ret;
 465 }
 466
 467 /*
 468  * PANid, channel, beacon_order = 15, superframe_order = 15,
 469  * PAN_coordinator, battery_life_extension = 0,
 470  * coord_realignment = 0, security_enable = 0
 471 */
 472 int ieee802154_start_req(struct sk_buff *skb, struct genl_info *info)
 473 {
 474         struct net_device *dev;
 475         struct ieee802154_addr addr;
 476
 477         u8 channel, bcn_ord, sf_ord;
 478         u8 page;
 479         int pan_coord, blx, coord_realign;
 480         int ret = -EOPNOTSUPP;
 481
 482         if (!info->attrs[IEEE802154_ATTR_COORD_PAN_ID] ||
 483             !info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR] ||
 484             !info->attrs[IEEE802154_ATTR_CHANNEL] ||
 485             !info->attrs[IEEE802154_ATTR_BCN_ORD] ||
 486             !info->attrs[IEEE802154_ATTR_SF_ORD] ||
 487             !info->attrs[IEEE802154_ATTR_PAN_COORD] ||
 488             !info->attrs[IEEE802154_ATTR_BAT_EXT] ||
 489             !info->attrs[IEEE802154_ATTR_COORD_REALIGN]
 490          )
 491                 return -EINVAL;
 492
 493         dev = ieee802154_nl_get_dev(info);
 494         if (!dev)
 495                 return -ENODEV;
 496         if (!ieee802154_mlme_ops(dev)->start_req)
 497                 goto out;
 498
 499         addr.mode = IEEE802154_ADDR_SHORT;
 500         addr.short_addr = nla_get_shortaddr(
 501                         info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR]);
 502         addr.pan_id = nla_get_shortaddr(
 503                         info->attrs[IEEE802154_ATTR_COORD_PAN_ID]);
 504
 505         channel = nla_get_u8(info->attrs[IEEE802154_ATTR_CHANNEL]);
 506         bcn_ord = nla_get_u8(info->attrs[IEEE802154_ATTR_BCN_ORD]);
 507         sf_ord = nla_get_u8(info->attrs[IEEE802154_ATTR_SF_ORD]);
 508         pan_coord = nla_get_u8(info->attrs[IEEE802154_ATTR_PAN_COORD]);
 509         blx = nla_get_u8(info->attrs[IEEE802154_ATTR_BAT_EXT]);
 510         coord_realign = nla_get_u8(info->attrs[IEEE802154_ATTR_COORD_REALIGN]);
 511
 512         if (info->attrs[IEEE802154_ATTR_PAGE])
 513                 page = nla_get_u8(info->attrs[IEEE802154_ATTR_PAGE]);
 514         else
 515                 page = 0;
 516
 517
 518         if (addr.short_addr == cpu_to_le16(IEEE802154_ADDR_BROADCAST)) {
 519                 ieee802154_nl_start_confirm(dev, IEEE802154_NO_SHORT_ADDRESS);
 520                 dev_put(dev);
 521                 return -EINVAL;
 522         }
 523
 524         ret = ieee802154_mlme_ops(dev)->start_req(dev, &addr, channel, page,
 525                 bcn_ord, sf_ord, pan_coord, blx, coord_realign);
 526
 527 out:
 528         dev_put(dev);
 529         return ret;
 530 }
 531
 532 int ieee802154_scan_req(struct sk_buff *skb, struct genl_info *info)
 533 {
 534         struct net_device *dev;
 535         int ret = -EOPNOTSUPP;
 536         u8 type;
 537         u32 channels;
 538         u8 duration;
 539         u8 page;
 540
 541         if (!info->attrs[IEEE802154_ATTR_SCAN_TYPE] ||
 542             !info->attrs[IEEE802154_ATTR_CHANNELS] ||
 543             !info->attrs[IEEE802154_ATTR_DURATION])
 544                 return -EINVAL;
 545
 546         dev = ieee802154_nl_get_dev(info);
 547         if (!dev)
 548                 return -ENODEV;
 549         if (!ieee802154_mlme_ops(dev)->scan_req)
 550                 goto out;
 551
 552         type = nla_get_u8(info->attrs[IEEE802154_ATTR_SCAN_TYPE]);
 553         channels = nla_get_u32(info->attrs[IEEE802154_ATTR_CHANNELS]);
 554         duration = nla_get_u8(info->attrs[IEEE802154_ATTR_DURATION]);
 555
 556         if (info->attrs[IEEE802154_ATTR_PAGE])
 557                 page = nla_get_u8(info->attrs[IEEE802154_ATTR_PAGE]);
 558         else
 559                 page = 0;
 560
 561
 562         ret = ieee802154_mlme_ops(dev)->scan_req(dev, type, channels, page,
 563                         duration);
 564
 565 out:
 566         dev_put(dev);
 567         return ret;
 568 }
 569
 570 int ieee802154_list_iface(struct sk_buff *skb, struct genl_info *info)
 571 {
 572         /* Request for interface name, index, type, IEEE address,
 573            PAN Id, short address */
 574         struct sk_buff *msg;
 575         struct net_device *dev = NULL;
 576         int rc = -ENOBUFS;
 577
 578         pr_debug("%s\n", __func__);
 579
 580         dev = ieee802154_nl_get_dev(info);
 581         if (!dev)
 582                 return -ENODEV;
 583
 584         msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
 585         if (!msg)
 586                 goto out_dev;
 587
 588         rc = ieee802154_nl_fill_iface(msg, info->snd_portid, info->snd_seq,
 589                         0, dev);
 590         if (rc < 0)
 591                 goto out_free;
 592
 593         dev_put(dev);
 594
 595         return genlmsg_reply(msg, info);
 596 out_free:
 597         nlmsg_free(msg);
 598 out_dev:
 599         dev_put(dev);
 600         return rc;
 601
 602 }
 603
 604 int ieee802154_dump_iface(struct sk_buff *skb, struct netlink_callback *cb)
 605 {
 606         struct net *net = sock_net(skb->sk);
 607         struct net_device *dev;
 608         int idx;
 609         int s_idx = cb->args[0];
 610
 611         pr_debug("%s\n", __func__);
 612
 613         idx = 0;
 614         for_each_netdev(net, dev) {
 615                 if (idx < s_idx || (dev->type != ARPHRD_IEEE802154))
 616                         goto cont;
 617
 618                 if (ieee802154_nl_fill_iface(skb, NETLINK_CB(cb->skb).portid,
 619                         cb->nlh->nlmsg_seq, NLM_F_MULTI, dev) < 0)
 620                         break;
 621 cont:
 622                 idx++;
 623         }
 624         cb->args[0] = idx;
 625
 626         return skb->len;
 627 }
 628
 629 int ieee802154_set_macparams(struct sk_buff *skb, struct genl_info *info)
 630 {
 631         struct net_device *dev = NULL;
 632         struct ieee802154_mlme_ops *ops;
 633         struct ieee802154_mac_params params;
 634         struct wpan_phy *phy;
 635         int rc = -EINVAL;
 636
 637         pr_debug("%s\n", __func__);
 638
 639         dev = ieee802154_nl_get_dev(info);
 640         if (!dev)
 641                 return -ENODEV;
 642
 643         ops = ieee802154_mlme_ops(dev);
 644
 645         if (!ops->get_mac_params || !ops->set_mac_params) {
 646                 rc = -EOPNOTSUPP;
 647                 goto out;
 648         }
 649
 650         if (netif_running(dev)) {
 651                 rc = -EBUSY;
 652                 goto out;
 653         }
 654
 655         if (!info->attrs[IEEE802154_ATTR_LBT_ENABLED] &&
 656             !info->attrs[IEEE802154_ATTR_CCA_MODE] &&
 657             !info->attrs[IEEE802154_ATTR_CCA_ED_LEVEL] &&
 658             !info->attrs[IEEE802154_ATTR_CSMA_RETRIES] &&
 659             !info->attrs[IEEE802154_ATTR_CSMA_MIN_BE] &&
 660             !info->attrs[IEEE802154_ATTR_CSMA_MAX_BE] &&
 661             !info->attrs[IEEE802154_ATTR_FRAME_RETRIES])
 662                 goto out;
 663
 664         phy = ops->get_phy(dev);
 665
 666         if ((!phy->set_lbt && info->attrs[IEEE802154_ATTR_LBT_ENABLED]) ||
 667             (!phy->set_cca_mode && info->attrs[IEEE802154_ATTR_CCA_MODE]) ||
 668             (!phy->set_cca_ed_level &&
 669              info->attrs[IEEE802154_ATTR_CCA_ED_LEVEL]) ||
 670             (!phy->set_csma_params &&
 671              (info->attrs[IEEE802154_ATTR_CSMA_RETRIES] ||
 672               info->attrs[IEEE802154_ATTR_CSMA_MIN_BE] ||
 673               info->attrs[IEEE802154_ATTR_CSMA_MAX_BE])) ||
 674             (!phy->set_frame_retries &&
 675              info->attrs[IEEE802154_ATTR_FRAME_RETRIES])) {
 676                 rc = -EOPNOTSUPP;
 677                 goto out_phy;
 678         }
 679
 680         ops->get_mac_params(dev, &params);
 681
 682         if (info->attrs[IEEE802154_ATTR_TXPOWER])
 683                 params.transmit_power = nla_get_s8(info->attrs[IEEE802154_ATTR_TXPOWER]);
 684
 685         if (info->attrs[IEEE802154_ATTR_LBT_ENABLED])
 686                 params.lbt = nla_get_u8(info->attrs[IEEE802154_ATTR_LBT_ENABLED]);
 687
 688         if (info->attrs[IEEE802154_ATTR_CCA_MODE])
 689                 params.cca_mode = nla_get_u8(info->attrs[IEEE802154_ATTR_CCA_MODE]);
 690
 691         if (info->attrs[IEEE802154_ATTR_CCA_ED_LEVEL])
 692                 params.cca_ed_level = nla_get_s32(info->attrs[IEEE802154_ATTR_CCA_ED_LEVEL]);
 693
 694         if (info->attrs[IEEE802154_ATTR_CSMA_RETRIES])
 695                 params.csma_retries = nla_get_u8(info->attrs[IEEE802154_ATTR_CSMA_RETRIES]);
 696
 697         if (info->attrs[IEEE802154_ATTR_CSMA_MIN_BE])
 698                 params.min_be = nla_get_u8(info->attrs[IEEE802154_ATTR_CSMA_MIN_BE]);
 699
 700         if (info->attrs[IEEE802154_ATTR_CSMA_MAX_BE])
 701                 params.max_be = nla_get_u8(info->attrs[IEEE802154_ATTR_CSMA_MAX_BE]);
 702
 703         if (info->attrs[IEEE802154_ATTR_FRAME_RETRIES])
 704                 params.frame_retries = nla_get_s8(info->attrs[IEEE802154_ATTR_FRAME_RETRIES]);
 705
 706         rc = ops->set_mac_params(dev, &params);
 707
 708         wpan_phy_put(phy);
 709         dev_put(dev);
 710         return rc;
 711
 712 out_phy:
 713         wpan_phy_put(phy);
 714 out:
 715         dev_put(dev);
 716         return rc;
 717 }
 718
 719
 720
 721 static int
 722 ieee802154_llsec_parse_key_id(struct genl_info *info,
 723                               struct ieee802154_llsec_key_id *desc)
 724 {
 725         memset(desc, 0, sizeof(*desc));
 726
 727         if (!info->attrs[IEEE802154_ATTR_LLSEC_KEY_MODE])
 728                 return -EINVAL;
 729
 730         desc->mode = nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_KEY_MODE]);
 731
 732         if (desc->mode == IEEE802154_SCF_KEY_IMPLICIT) {
 733                 if (!info->attrs[IEEE802154_ATTR_PAN_ID] &&
 734                     !(info->attrs[IEEE802154_ATTR_SHORT_ADDR] ||
 735                       info->attrs[IEEE802154_ATTR_HW_ADDR]))
 736                         return -EINVAL;
 737
 738                 desc->device_addr.pan_id = nla_get_shortaddr(info->attrs[IEEE802154_ATTR_PAN_ID]);
 739
 740                 if (info->attrs[IEEE802154_ATTR_SHORT_ADDR]) {
 741                         desc->device_addr.mode = IEEE802154_ADDR_SHORT;
 742                         desc->device_addr.short_addr = nla_get_shortaddr(info->attrs[IEEE802154_ATTR_SHORT_ADDR]);
 743                 } else {
 744                         desc->device_addr.mode = IEEE802154_ADDR_LONG;
 745                         desc->device_addr.extended_addr = nla_get_hwaddr(info->attrs[IEEE802154_ATTR_HW_ADDR]);
 746                 }
 747         }
 748
 749         if (desc->mode != IEEE802154_SCF_KEY_IMPLICIT &&
 750             !info->attrs[IEEE802154_ATTR_LLSEC_KEY_ID])
 751                 return -EINVAL;
 752
 753         if (desc->mode == IEEE802154_SCF_KEY_SHORT_INDEX &&
 754             !info->attrs[IEEE802154_ATTR_LLSEC_KEY_SOURCE_SHORT])
 755                 return -EINVAL;
 756
 757         if (desc->mode == IEEE802154_SCF_KEY_HW_INDEX &&
 758             !info->attrs[IEEE802154_ATTR_LLSEC_KEY_SOURCE_EXTENDED])
 759                 return -EINVAL;
 760
 761         if (desc->mode != IEEE802154_SCF_KEY_IMPLICIT)
 762                 desc->id = nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_KEY_ID]);
 763
 764         switch (desc->mode) {
 765         case IEEE802154_SCF_KEY_SHORT_INDEX:
 766         {
 767                 u32 source = nla_get_u32(info->attrs[IEEE802154_ATTR_LLSEC_KEY_SOURCE_SHORT]);
 768                 desc->short_source = cpu_to_le32(source);
 769                 break;
 770         }
 771         case IEEE802154_SCF_KEY_HW_INDEX:
 772                 desc->extended_source = nla_get_hwaddr(info->attrs[IEEE802154_ATTR_LLSEC_KEY_SOURCE_EXTENDED]);
 773                 break;
 774         }
 775
 776         return 0;
 777 }
 778
 779 static int
 780 ieee802154_llsec_fill_key_id(struct sk_buff *msg,
 781                              const struct ieee802154_llsec_key_id *desc)
 782 {
 783         if (nla_put_u8(msg, IEEE802154_ATTR_LLSEC_KEY_MODE, desc->mode))
 784                 return -EMSGSIZE;
 785
 786         if (desc->mode == IEEE802154_SCF_KEY_IMPLICIT) {
 787                 if (nla_put_shortaddr(msg, IEEE802154_ATTR_PAN_ID,
 788                                       desc->device_addr.pan_id))
 789                         return -EMSGSIZE;
 790
 791                 if (desc->device_addr.mode == IEEE802154_ADDR_SHORT &&
 792                     nla_put_shortaddr(msg, IEEE802154_ATTR_SHORT_ADDR,
 793                                       desc->device_addr.short_addr))
 794                         return -EMSGSIZE;
 795
 796                 if (desc->device_addr.mode == IEEE802154_ADDR_LONG &&
 797                     nla_put_hwaddr(msg, IEEE802154_ATTR_HW_ADDR,
 798                                    desc->device_addr.extended_addr))
 799                         return -EMSGSIZE;
 800         }
 801
 802         if (desc->mode != IEEE802154_SCF_KEY_IMPLICIT &&
 803             nla_put_u8(msg, IEEE802154_ATTR_LLSEC_KEY_ID, desc->id))
 804                 return -EMSGSIZE;
 805
 806         if (desc->mode == IEEE802154_SCF_KEY_SHORT_INDEX &&
 807             nla_put_u32(msg, IEEE802154_ATTR_LLSEC_KEY_SOURCE_SHORT,
 808                         le32_to_cpu(desc->short_source)))
 809                 return -EMSGSIZE;
 810
 811         if (desc->mode == IEEE802154_SCF_KEY_HW_INDEX &&
 812             nla_put_hwaddr(msg, IEEE802154_ATTR_LLSEC_KEY_SOURCE_EXTENDED,
 813                            desc->extended_source))
 814                 return -EMSGSIZE;
 815
 816         return 0;
 817 }
 818
 819 int ieee802154_llsec_getparams(struct sk_buff *skb, struct genl_info *info)
 820 {
 821         struct sk_buff *msg;
 822         struct net_device *dev = NULL;
 823         int rc = -ENOBUFS;
 824         struct ieee802154_mlme_ops *ops;
 825         void *hdr;
 826         struct ieee802154_llsec_params params;
 827
 828         pr_debug("%s\n", __func__);
 829
 830         dev = ieee802154_nl_get_dev(info);
 831         if (!dev)
 832                 return -ENODEV;
 833
 834         ops = ieee802154_mlme_ops(dev);
 835         if (!ops->llsec) {
 836                 rc = -EOPNOTSUPP;
 837                 goto out_dev;
 838         }
 839
 840         msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
 841         if (!msg)
 842                 goto out_dev;
 843
 844         hdr = genlmsg_put(msg, 0, info->snd_seq, &nl802154_family, 0,
 845                 IEEE802154_LLSEC_GETPARAMS);
 846         if (!hdr)
 847                 goto out_free;
 848
 849         rc = ops->llsec->get_params(dev, &params);
 850         if (rc < 0)
 851                 goto out_free;
 852
 853         if (nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, dev->name) ||
 854             nla_put_u32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex) ||
 855             nla_put_u8(msg, IEEE802154_ATTR_LLSEC_ENABLED, params.enabled) ||
 856             nla_put_u8(msg, IEEE802154_ATTR_LLSEC_SECLEVEL, params.out_level) ||
 857             nla_put_u32(msg, IEEE802154_ATTR_LLSEC_FRAME_COUNTER,
 858                         be32_to_cpu(params.frame_counter)) ||
 859             ieee802154_llsec_fill_key_id(msg, &params.out_key))
 860                 goto out_free;
 861
 862         dev_put(dev);
 863
 864         return ieee802154_nl_reply(msg, info);
 865 out_free:
 866         nlmsg_free(msg);
 867 out_dev:
 868         dev_put(dev);
 869         return rc;
 870 }
 871
 872 int ieee802154_llsec_setparams(struct sk_buff *skb, struct genl_info *info)
 873 {
 874         struct net_device *dev = NULL;
 875         int rc = -EINVAL;
 876         struct ieee802154_mlme_ops *ops;
 877         struct ieee802154_llsec_params params;
 878         int changed = 0;
 879
 880         pr_debug("%s\n", __func__);
 881
 882         dev = ieee802154_nl_get_dev(info);
 883         if (!dev)
 884                 return -ENODEV;
 885
 886         if (!info->attrs[IEEE802154_ATTR_LLSEC_ENABLED] &&
 887             !info->attrs[IEEE802154_ATTR_LLSEC_KEY_MODE] &&
 888             !info->attrs[IEEE802154_ATTR_LLSEC_SECLEVEL])
 889                 goto out;
 890
 891         ops = ieee802154_mlme_ops(dev);
 892         if (!ops->llsec) {
 893                 rc = -EOPNOTSUPP;
 894                 goto out;
 895         }
 896
 897         if (info->attrs[IEEE802154_ATTR_LLSEC_SECLEVEL] &&
 898             nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_SECLEVEL]) > 7)
 899                 goto out;
 900
 901         if (info->attrs[IEEE802154_ATTR_LLSEC_ENABLED]) {
 902                 params.enabled = nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_ENABLED]);
 903                 changed |= IEEE802154_LLSEC_PARAM_ENABLED;
 904         }
 905
 906         if (info->attrs[IEEE802154_ATTR_LLSEC_KEY_MODE]) {
 907                 if (ieee802154_llsec_parse_key_id(info, &params.out_key))
 908                         goto out;
 909
 910                 changed |= IEEE802154_LLSEC_PARAM_OUT_KEY;
 911         }
 912
 913         if (info->attrs[IEEE802154_ATTR_LLSEC_SECLEVEL]) {
 914                 params.out_level = nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_SECLEVEL]);
 915                 changed |= IEEE802154_LLSEC_PARAM_OUT_LEVEL;
 916         }
 917
 918         if (info->attrs[IEEE802154_ATTR_LLSEC_FRAME_COUNTER]) {
 919                 u32 fc = nla_get_u32(info->attrs[IEEE802154_ATTR_LLSEC_FRAME_COUNTER]);
 920
 921                 params.frame_counter = cpu_to_be32(fc);
 922                 changed |= IEEE802154_LLSEC_PARAM_FRAME_COUNTER;
 923         }
 924
 925         rc = ops->llsec->set_params(dev, &params, changed);
 926
 927         dev_put(dev);
 928
 929         return rc;
 930 out:
 931         dev_put(dev);
 932         return rc;
 933 }
 934
 935
 936
 937 struct llsec_dump_data {
 938         struct sk_buff *skb;
 939         int s_idx, s_idx2;
 940         int portid;
 941         int nlmsg_seq;
 942         struct net_device *dev;
 943         struct ieee802154_mlme_ops *ops;
 944         struct ieee802154_llsec_table *table;
 945 };
 946
 947 static int
 948 ieee802154_llsec_dump_table(struct sk_buff *skb, struct netlink_callback *cb,
 949                             int (*step)(struct llsec_dump_data*))
 950 {
 951         struct net *net = sock_net(skb->sk);
 952         struct net_device *dev;
 953         struct llsec_dump_data data;
 954         int idx = 0;
 955         int first_dev = cb->args[0];
 956         int rc;
 957
 958         for_each_netdev(net, dev) {
 959                 if (idx < first_dev || dev->type != ARPHRD_IEEE802154)
 960                         goto skip;
 961
 962                 data.ops = ieee802154_mlme_ops(dev);
 963                 if (!data.ops->llsec)
 964                         goto skip;
 965
 966                 data.skb = skb;
 967                 data.s_idx = cb->args[1];
 968                 data.s_idx2 = cb->args[2];
 969                 data.dev = dev;
 970                 data.portid = NETLINK_CB(cb->skb).portid;
 971                 data.nlmsg_seq = cb->nlh->nlmsg_seq;
 972
 973                 data.ops->llsec->lock_table(dev);
 974                 data.ops->llsec->get_table(data.dev, &data.table);
 975                 rc = step(&data);
 976                 data.ops->llsec->unlock_table(dev);
 977
 978                 if (rc < 0)
 979                         break;
 980
 981 skip:
 982                 idx++;
 983         }
 984         cb->args[0] = idx;
 985
 986         return skb->len;
 987 }
 988
 989 static int
 990 ieee802154_nl_llsec_change(struct sk_buff *skb, struct genl_info *info,
 991                            int (*fn)(struct net_device*, struct genl_info*))
 992 {
 993         struct net_device *dev = NULL;
 994         int rc = -EINVAL;
 995
 996         dev = ieee802154_nl_get_dev(info);
 997         if (!dev)
 998                 return -ENODEV;
 999
1000         if (!ieee802154_mlme_ops(dev)->llsec)
1001                 rc = -EOPNOTSUPP;
1002         else
1003                 rc = fn(dev, info);
1004
1005         dev_put(dev);
1006         return rc;
1007 }
1008
1009
1010
1011 static int
1012 ieee802154_llsec_parse_key(struct genl_info *info,
1013                            struct ieee802154_llsec_key *key)
1014 {
1015         u8 frames;
1016         u32 commands[256 / 32];
1017
1018         memset(key, 0, sizeof(*key));
1019
1020         if (!info->attrs[IEEE802154_ATTR_LLSEC_KEY_USAGE_FRAME_TYPES] ||
1021             !info->attrs[IEEE802154_ATTR_LLSEC_KEY_BYTES])
1022                 return -EINVAL;
1023
1024         frames = nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_KEY_USAGE_FRAME_TYPES]);
1025         if ((frames & BIT(IEEE802154_FC_TYPE_MAC_CMD)) &&
1026             !info->attrs[IEEE802154_ATTR_LLSEC_KEY_USAGE_COMMANDS])
1027                 return -EINVAL;
1028
1029         if (info->attrs[IEEE802154_ATTR_LLSEC_KEY_USAGE_COMMANDS]) {
1030                 nla_memcpy(commands,
1031                            info->attrs[IEEE802154_ATTR_LLSEC_KEY_USAGE_COMMANDS],
1032                            256 / 8);
1033
1034                 if (commands[0] || commands[1] || commands[2] || commands[3] ||
1035                     commands[4] || commands[5] || commands[6] ||
1036                     commands[7] >= BIT(IEEE802154_CMD_GTS_REQ + 1))
1037                         return -EINVAL;
1038
1039                 key->cmd_frame_ids = commands[7];
1040         }
1041
1042         key->frame_types = frames;
1043
1044         nla_memcpy(key->key, info->attrs[IEEE802154_ATTR_LLSEC_KEY_BYTES],
1045                    IEEE802154_LLSEC_KEY_SIZE);
1046
1047         return 0;
1048 }
1049
1050 static int llsec_add_key(struct net_device *dev, struct genl_info *info)
1051 {
1052         struct ieee802154_mlme_ops *ops = ieee802154_mlme_ops(dev);
1053         struct ieee802154_llsec_key key;
1054         struct ieee802154_llsec_key_id id;
1055
1056         if (ieee802154_llsec_parse_key(info, &key) ||
1057             ieee802154_llsec_parse_key_id(info, &id))
1058                 return -EINVAL;
1059
1060         return ops->llsec->add_key(dev, &id, &key);
1061 }
1062
1063 int ieee802154_llsec_add_key(struct sk_buff *skb, struct genl_info *info)
1064 {
1065         if ((info->nlhdr->nlmsg_flags & (NLM_F_CREATE | NLM_F_EXCL)) !=
1066             (NLM_F_CREATE | NLM_F_EXCL))
1067                 return -EINVAL;
1068
1069         return ieee802154_nl_llsec_change(skb, info, llsec_add_key);
1070 }
1071
1072 static int llsec_remove_key(struct net_device *dev, struct genl_info *info)
1073 {
1074         struct ieee802154_mlme_ops *ops = ieee802154_mlme_ops(dev);
1075         struct ieee802154_llsec_key_id id;
1076
1077         if (ieee802154_llsec_parse_key_id(info, &id))
1078                 return -EINVAL;
1079
1080         return ops->llsec->del_key(dev, &id);
1081 }
1082
1083 int ieee802154_llsec_del_key(struct sk_buff *skb, struct genl_info *info)
1084 {
1085         return ieee802154_nl_llsec_change(skb, info, llsec_remove_key);
1086 }
1087
1088 static int
1089 ieee802154_nl_fill_key(struct sk_buff *msg, u32 portid, u32 seq,
1090                        const struct ieee802154_llsec_key_entry *key,
1091                        const struct net_device *dev)
1092 {
1093         void *hdr;
1094         u32 commands[256 / 32];
1095
1096         hdr = genlmsg_put(msg, 0, seq, &nl802154_family, NLM_F_MULTI,
1097                           IEEE802154_LLSEC_LIST_KEY);
1098         if (!hdr)
1099                 goto out;
1100
1101         if (nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, dev->name) ||
1102             nla_put_u32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex) ||
1103             ieee802154_llsec_fill_key_id(msg, &key->id) ||
1104             nla_put_u8(msg, IEEE802154_ATTR_LLSEC_KEY_USAGE_FRAME_TYPES,
1105                        key->key->frame_types))
1106                 goto nla_put_failure;
1107
1108         if (key->key->frame_types & BIT(IEEE802154_FC_TYPE_MAC_CMD)) {
1109                 memset(commands, 0, sizeof(commands));
1110                 commands[7] = key->key->cmd_frame_ids;
1111                 if (nla_put(msg, IEEE802154_ATTR_LLSEC_KEY_USAGE_COMMANDS,
1112                             sizeof(commands), commands))
1113                         goto nla_put_failure;
1114         }
1115
1116         if (nla_put(msg, IEEE802154_ATTR_LLSEC_KEY_BYTES,
1117                     IEEE802154_LLSEC_KEY_SIZE, key->key->key))
1118                 goto nla_put_failure;
1119
1120         genlmsg_end(msg, hdr);
1121         return 0;
1122
1123 nla_put_failure:
1124         genlmsg_cancel(msg, hdr);
1125 out:
1126         return -EMSGSIZE;
1127 }
1128
1129 static int llsec_iter_keys(struct llsec_dump_data *data)
1130 {
1131         struct ieee802154_llsec_key_entry *pos;
1132         int rc = 0, idx = 0;
1133
1134         list_for_each_entry(pos, &data->table->keys, list) {
1135                 if (idx++ < data->s_idx)
1136                         continue;
1137
1138                 if (ieee802154_nl_fill_key(data->skb, data->portid,
1139                                            data->nlmsg_seq, pos, data->dev)) {
1140                         rc = -EMSGSIZE;
1141                         break;
1142                 }
1143
1144                 data->s_idx++;
1145         }
1146
1147         return rc;
1148 }
1149
1150 int ieee802154_llsec_dump_keys(struct sk_buff *skb, struct netlink_callback *cb)
1151 {
1152         return ieee802154_llsec_dump_table(skb, cb, llsec_iter_keys);
1153 }
1154
1155
1156
1157 static int
1158 llsec_parse_dev(struct genl_info *info,
1159                 struct ieee802154_llsec_device *dev)
1160 {
1161         memset(dev, 0, sizeof(*dev));
1162
1163         if (!info->attrs[IEEE802154_ATTR_LLSEC_FRAME_COUNTER] ||
1164             !info->attrs[IEEE802154_ATTR_HW_ADDR] ||
1165             !info->attrs[IEEE802154_ATTR_LLSEC_DEV_OVERRIDE] ||
1166             !info->attrs[IEEE802154_ATTR_LLSEC_DEV_KEY_MODE] ||
1167             (!!info->attrs[IEEE802154_ATTR_PAN_ID] !=
1168              !!info->attrs[IEEE802154_ATTR_SHORT_ADDR]))
1169                 return -EINVAL;
1170
1171         if (info->attrs[IEEE802154_ATTR_PAN_ID]) {
1172                 dev->pan_id = nla_get_shortaddr(info->attrs[IEEE802154_ATTR_PAN_ID]);
1173                 dev->short_addr = nla_get_shortaddr(info->attrs[IEEE802154_ATTR_SHORT_ADDR]);
1174         } else {
1175                 dev->short_addr = cpu_to_le16(IEEE802154_ADDR_UNDEF);
1176         }
1177
1178         dev->hwaddr = nla_get_hwaddr(info->attrs[IEEE802154_ATTR_HW_ADDR]);
1179         dev->frame_counter = nla_get_u32(info->attrs[IEEE802154_ATTR_LLSEC_FRAME_COUNTER]);
1180         dev->seclevel_exempt = !!nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_DEV_OVERRIDE]);
1181         dev->key_mode = nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_DEV_KEY_MODE]);
1182
1183         if (dev->key_mode >= __IEEE802154_LLSEC_DEVKEY_MAX)
1184                 return -EINVAL;
1185
1186         return 0;
1187 }
1188
1189 static int llsec_add_dev(struct net_device *dev, struct genl_info *info)
1190 {
1191         struct ieee802154_mlme_ops *ops = ieee802154_mlme_ops(dev);
1192         struct ieee802154_llsec_device desc;
1193
1194         if (llsec_parse_dev(info, &desc))
1195                 return -EINVAL;
1196
1197         return ops->llsec->add_dev(dev, &desc);
1198 }
1199
1200 int ieee802154_llsec_add_dev(struct sk_buff *skb, struct genl_info *info)
1201 {
1202         if ((info->nlhdr->nlmsg_flags & (NLM_F_CREATE | NLM_F_EXCL)) !=
1203             (NLM_F_CREATE | NLM_F_EXCL))
1204                 return -EINVAL;
1205
1206         return ieee802154_nl_llsec_change(skb, info, llsec_add_dev);
1207 }
1208
1209 static int llsec_del_dev(struct net_device *dev, struct genl_info *info)
1210 {
1211         struct ieee802154_mlme_ops *ops = ieee802154_mlme_ops(dev);
1212         __le64 devaddr;
1213
1214         if (!info->attrs[IEEE802154_ATTR_HW_ADDR])
1215                 return -EINVAL;
1216
1217         devaddr = nla_get_hwaddr(info->attrs[IEEE802154_ATTR_HW_ADDR]);
1218
1219         return ops->llsec->del_dev(dev, devaddr);
1220 }
1221
1222 int ieee802154_llsec_del_dev(struct sk_buff *skb, struct genl_info *info)
1223 {
1224         return ieee802154_nl_llsec_change(skb, info, llsec_del_dev);
1225 }
1226
1227 static int
1228 ieee802154_nl_fill_dev(struct sk_buff *msg, u32 portid, u32 seq,
1229                        const struct ieee802154_llsec_device *desc,
1230                        const struct net_device *dev)
1231 {
1232         void *hdr;
1233
1234         hdr = genlmsg_put(msg, 0, seq, &nl802154_family, NLM_F_MULTI,
1235                           IEEE802154_LLSEC_LIST_DEV);
1236         if (!hdr)
1237                 goto out;
1238
1239         if (nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, dev->name) ||
1240             nla_put_u32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex) ||
1241             nla_put_shortaddr(msg, IEEE802154_ATTR_PAN_ID, desc->pan_id) ||
1242             nla_put_shortaddr(msg, IEEE802154_ATTR_SHORT_ADDR,
1243                               desc->short_addr) ||
1244             nla_put_hwaddr(msg, IEEE802154_ATTR_HW_ADDR, desc->hwaddr) ||
1245             nla_put_u32(msg, IEEE802154_ATTR_LLSEC_FRAME_COUNTER,
1246                         desc->frame_counter) ||
1247             nla_put_u8(msg, IEEE802154_ATTR_LLSEC_DEV_OVERRIDE,
1248                        desc->seclevel_exempt) ||
1249             nla_put_u8(msg, IEEE802154_ATTR_LLSEC_DEV_KEY_MODE, desc->key_mode))
1250                 goto nla_put_failure;
1251
1252         genlmsg_end(msg, hdr);
1253         return 0;
1254
1255 nla_put_failure:
1256         genlmsg_cancel(msg, hdr);
1257 out:
1258         return -EMSGSIZE;
1259 }
1260
1261 static int llsec_iter_devs(struct llsec_dump_data *data)
1262 {
1263         struct ieee802154_llsec_device *pos;
1264         int rc = 0, idx = 0;
1265
1266         list_for_each_entry(pos, &data->table->devices, list) {
1267                 if (idx++ < data->s_idx)
1268                         continue;
1269
1270                 if (ieee802154_nl_fill_dev(data->skb, data->portid,
1271                                            data->nlmsg_seq, pos, data->dev)) {
1272                         rc = -EMSGSIZE;
1273                         break;
1274                 }
1275
1276                 data->s_idx++;
1277         }
1278
1279         return rc;
1280 }
1281
1282 int ieee802154_llsec_dump_devs(struct sk_buff *skb, struct netlink_callback *cb)
1283 {
1284         return ieee802154_llsec_dump_table(skb, cb, llsec_iter_devs);
1285 }
1286
1287
1288
1289 static int llsec_add_devkey(struct net_device *dev, struct genl_info *info)
1290 {
1291         struct ieee802154_mlme_ops *ops = ieee802154_mlme_ops(dev);
1292         struct ieee802154_llsec_device_key key;
1293         __le64 devaddr;
1294
1295         if (!info->attrs[IEEE802154_ATTR_LLSEC_FRAME_COUNTER] ||
1296             !info->attrs[IEEE802154_ATTR_HW_ADDR] ||
1297             ieee802154_llsec_parse_key_id(info, &key.key_id))
1298                 return -EINVAL;
1299
1300         devaddr = nla_get_hwaddr(info->attrs[IEEE802154_ATTR_HW_ADDR]);
1301         key.frame_counter = nla_get_u32(info->attrs[IEEE802154_ATTR_LLSEC_FRAME_COUNTER]);
1302
1303         return ops->llsec->add_devkey(dev, devaddr, &key);
1304 }
1305
1306 int ieee802154_llsec_add_devkey(struct sk_buff *skb, struct genl_info *info)
1307 {
1308         if ((info->nlhdr->nlmsg_flags & (NLM_F_CREATE | NLM_F_EXCL)) !=
1309             (NLM_F_CREATE | NLM_F_EXCL))
1310                 return -EINVAL;
1311
1312         return ieee802154_nl_llsec_change(skb, info, llsec_add_devkey);
1313 }
1314
1315 static int llsec_del_devkey(struct net_device *dev, struct genl_info *info)
1316 {
1317         struct ieee802154_mlme_ops *ops = ieee802154_mlme_ops(dev);
1318         struct ieee802154_llsec_device_key key;
1319         __le64 devaddr;
1320
1321         if (!info->attrs[IEEE802154_ATTR_HW_ADDR] ||
1322             ieee802154_llsec_parse_key_id(info, &key.key_id))
1323                 return -EINVAL;
1324
1325         devaddr = nla_get_hwaddr(info->attrs[IEEE802154_ATTR_HW_ADDR]);
1326
1327         return ops->llsec->del_devkey(dev, devaddr, &key);
1328 }
1329
1330 int ieee802154_llsec_del_devkey(struct sk_buff *skb, struct genl_info *info)
1331 {
1332         return ieee802154_nl_llsec_change(skb, info, llsec_del_devkey);
1333 }
1334
1335 static int
1336 ieee802154_nl_fill_devkey(struct sk_buff *msg, u32 portid, u32 seq,
1337                           __le64 devaddr,
1338                           const struct ieee802154_llsec_device_key *devkey,
1339                           const struct net_device *dev)
1340 {
1341         void *hdr;
1342
1343         hdr = genlmsg_put(msg, 0, seq, &nl802154_family, NLM_F_MULTI,
1344                           IEEE802154_LLSEC_LIST_DEVKEY);
1345         if (!hdr)
1346                 goto out;
1347
1348         if (nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, dev->name) ||
1349             nla_put_u32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex) ||
1350             nla_put_hwaddr(msg, IEEE802154_ATTR_HW_ADDR, devaddr) ||
1351             nla_put_u32(msg, IEEE802154_ATTR_LLSEC_FRAME_COUNTER,
1352                         devkey->frame_counter) ||
1353             ieee802154_llsec_fill_key_id(msg, &devkey->key_id))
1354                 goto nla_put_failure;
1355
1356         genlmsg_end(msg, hdr);
1357         return 0;
1358
1359 nla_put_failure:
1360         genlmsg_cancel(msg, hdr);
1361 out:
1362         return -EMSGSIZE;
1363 }
1364
1365 static int llsec_iter_devkeys(struct llsec_dump_data *data)
1366 {
1367         struct ieee802154_llsec_device *dpos;
1368         struct ieee802154_llsec_device_key *kpos;
1369         int rc = 0, idx = 0, idx2;
1370
1371         list_for_each_entry(dpos, &data->table->devices, list) {
1372                 if (idx++ < data->s_idx)
1373                         continue;
1374
1375                 idx2 = 0;
1376
1377                 list_for_each_entry(kpos, &dpos->keys, list) {
1378                         if (idx2++ < data->s_idx2)
1379                                 continue;
1380
1381                         if (ieee802154_nl_fill_devkey(data->skb, data->portid,
1382                                                       data->nlmsg_seq,
1383                                                       dpos->hwaddr, kpos,
1384                                                       data->dev)) {
1385                                 return rc = -EMSGSIZE;
1386                         }
1387
1388                         data->s_idx2++;
1389                 }
1390
1391                 data->s_idx++;
1392         }
1393
1394         return rc;
1395 }
1396
1397 int ieee802154_llsec_dump_devkeys(struct sk_buff *skb,
1398                                   struct netlink_callback *cb)
1399 {
1400         return ieee802154_llsec_dump_table(skb, cb, llsec_iter_devkeys);
1401 }
1402
1403
1404
1405 static int
1406 llsec_parse_seclevel(struct genl_info *info,
1407                      struct ieee802154_llsec_seclevel *sl)
1408 {
1409         memset(sl, 0, sizeof(*sl));
1410
1411         if (!info->attrs[IEEE802154_ATTR_LLSEC_FRAME_TYPE] ||
1412             !info->attrs[IEEE802154_ATTR_LLSEC_SECLEVELS] ||
1413             !info->attrs[IEEE802154_ATTR_LLSEC_DEV_OVERRIDE])
1414                 return -EINVAL;
1415
1416         sl->frame_type = nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_FRAME_TYPE]);
1417         if (sl->frame_type == IEEE802154_FC_TYPE_MAC_CMD) {
1418                 if (!info->attrs[IEEE802154_ATTR_LLSEC_CMD_FRAME_ID])
1419                         return -EINVAL;
1420
1421                 sl->cmd_frame_id = nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_CMD_FRAME_ID]);
1422         }
1423
1424         sl->sec_levels = nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_SECLEVELS]);
1425         sl->device_override = nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_DEV_OVERRIDE]);
1426
1427         return 0;
1428 }
1429
1430 static int llsec_add_seclevel(struct net_device *dev, struct genl_info *info)
1431 {
1432         struct ieee802154_mlme_ops *ops = ieee802154_mlme_ops(dev);
1433         struct ieee802154_llsec_seclevel sl;
1434
1435         if (llsec_parse_seclevel(info, &sl))
1436                 return -EINVAL;
1437
1438         return ops->llsec->add_seclevel(dev, &sl);
1439 }
1440
1441 int ieee802154_llsec_add_seclevel(struct sk_buff *skb, struct genl_info *info)
1442 {
1443         if ((info->nlhdr->nlmsg_flags & (NLM_F_CREATE | NLM_F_EXCL)) !=
1444             (NLM_F_CREATE | NLM_F_EXCL))
1445                 return -EINVAL;
1446
1447         return ieee802154_nl_llsec_change(skb, info, llsec_add_seclevel);
1448 }
1449
1450 static int llsec_del_seclevel(struct net_device *dev, struct genl_info *info)
1451 {
1452         struct ieee802154_mlme_ops *ops = ieee802154_mlme_ops(dev);
1453         struct ieee802154_llsec_seclevel sl;
1454
1455         if (llsec_parse_seclevel(info, &sl))
1456                 return -EINVAL;
1457
1458         return ops->llsec->del_seclevel(dev, &sl);
1459 }
1460
1461 int ieee802154_llsec_del_seclevel(struct sk_buff *skb, struct genl_info *info)
1462 {
1463         return ieee802154_nl_llsec_change(skb, info, llsec_del_seclevel);
1464 }
1465
1466 static int
1467 ieee802154_nl_fill_seclevel(struct sk_buff *msg, u32 portid, u32 seq,
1468                             const struct ieee802154_llsec_seclevel *sl,
1469                             const struct net_device *dev)
1470 {
1471         void *hdr;
1472
1473         hdr = genlmsg_put(msg, 0, seq, &nl802154_family, NLM_F_MULTI,
1474                           IEEE802154_LLSEC_LIST_SECLEVEL);
1475         if (!hdr)
1476                 goto out;
1477
1478         if (nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, dev->name) ||
1479             nla_put_u32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex) ||
1480             nla_put_u8(msg, IEEE802154_ATTR_LLSEC_FRAME_TYPE, sl->frame_type) ||
1481             nla_put_u8(msg, IEEE802154_ATTR_LLSEC_SECLEVELS, sl->sec_levels) ||
1482             nla_put_u8(msg, IEEE802154_ATTR_LLSEC_DEV_OVERRIDE,
1483                        sl->device_override))
1484                 goto nla_put_failure;
1485
1486         if (sl->frame_type == IEEE802154_FC_TYPE_MAC_CMD &&
1487             nla_put_u8(msg, IEEE802154_ATTR_LLSEC_CMD_FRAME_ID,
1488                        sl->cmd_frame_id))
1489                 goto nla_put_failure;
1490
1491         genlmsg_end(msg, hdr);
1492         return 0;
1493
1494 nla_put_failure:
1495         genlmsg_cancel(msg, hdr);
1496 out:
1497         return -EMSGSIZE;
1498 }
1499
1500 static int llsec_iter_seclevels(struct llsec_dump_data *data)
1501 {
1502         struct ieee802154_llsec_seclevel *pos;
1503         int rc = 0, idx = 0;
1504
1505         list_for_each_entry(pos, &data->table->security_levels, list) {
1506                 if (idx++ < data->s_idx)
1507                         continue;
1508
1509                 if (ieee802154_nl_fill_seclevel(data->skb, data->portid,
1510                                                 data->nlmsg_seq, pos,
1511                                                 data->dev)) {
1512                         rc = -EMSGSIZE;
1513                         break;
1514                 }
1515
1516                 data->s_idx++;
1517         }
1518
1519         return rc;
1520 }
1521
1522 int ieee802154_llsec_dump_seclevels(struct sk_buff *skb,
1523                                     struct netlink_callback *cb)
1524 {
1525         return ieee802154_llsec_dump_table(skb, cb, llsec_iter_seclevels);
1526 }