net/ieee802154/nl802154.c

   1 /* This program is free software; you can redistribute it and/or modify
   2  * it under the terms of the GNU General Public License version 2
   3  * as published by the Free Software Foundation.
   4  *
   5  * This program is distributed in the hope that it will be useful,
   6  * but WITHOUT ANY WARRANTY; without even the implied warranty of
   7  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   8  * GNU General Public License for more details.
   9  *
  10  * Authors:
  11  * Alexander Aring <aar@pengutronix.de>
  12  *
  13  * Based on: net/wireless/nl80211.c
  14  */
  15
  16 #include <linux/rtnetlink.h>
  17
  18 #include <net/cfg802154.h>
  19 #include <net/genetlink.h>
  20 #include <net/mac802154.h>
  21 #include <net/netlink.h>
  22 #include <net/nl802154.h>
  23 #include <net/sock.h>
  24
  25 #include "nl802154.h"
  26 #include "rdev-ops.h"
  27 #include "core.h"
  28
  29 static int nl802154_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
  30                              struct genl_info *info);
  31
  32 static void nl802154_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
  33                                struct genl_info *info);
  34
  35 /* the netlink family */
  36 static struct genl_family nl802154_fam = {
  37         .id = GENL_ID_GENERATE,         /* don't bother with a hardcoded ID */
  38         .name = NL802154_GENL_NAME,     /* have users key off the name instead */
  39         .hdrsize = 0,                   /* no private header */
  40         .version = 1,                   /* no particular meaning now */
  41         .maxattr = NL802154_ATTR_MAX,
  42         .netnsok = true,
  43         .pre_doit = nl802154_pre_doit,
  44         .post_doit = nl802154_post_doit,
  45 };
  46
  47 /* multicast groups */
  48 enum nl802154_multicast_groups {
  49         NL802154_MCGRP_CONFIG,
  50 };
  51
  52 static const struct genl_multicast_group nl802154_mcgrps[] = {
  53         [NL802154_MCGRP_CONFIG] = { .name = "config", },
  54 };
  55
  56 /* returns ERR_PTR values */
  57 static struct wpan_dev *
  58 __cfg802154_wpan_dev_from_attrs(struct net *netns, struct nlattr **attrs)
  59 {
  60         struct cfg802154_registered_device *rdev;
  61         struct wpan_dev *result = NULL;
  62         bool have_ifidx = attrs[NL802154_ATTR_IFINDEX];
  63         bool have_wpan_dev_id = attrs[NL802154_ATTR_WPAN_DEV];
  64         u64 wpan_dev_id;
  65         int wpan_phy_idx = -1;
  66         int ifidx = -1;
  67
  68         ASSERT_RTNL();
  69
  70         if (!have_ifidx && !have_wpan_dev_id)
  71                 return ERR_PTR(-EINVAL);
  72
  73         if (have_ifidx)
  74                 ifidx = nla_get_u32(attrs[NL802154_ATTR_IFINDEX]);
  75         if (have_wpan_dev_id) {
  76                 wpan_dev_id = nla_get_u64(attrs[NL802154_ATTR_WPAN_DEV]);
  77                 wpan_phy_idx = wpan_dev_id >> 32;
  78         }
  79
  80         list_for_each_entry(rdev, &cfg802154_rdev_list, list) {
  81                 struct wpan_dev *wpan_dev;
  82
  83                 /* TODO netns compare */
  84
  85                 if (have_wpan_dev_id && rdev->wpan_phy_idx != wpan_phy_idx)
  86                         continue;
  87
  88                 list_for_each_entry(wpan_dev, &rdev->wpan_dev_list, list) {
  89                         if (have_ifidx && wpan_dev->netdev &&
  90                             wpan_dev->netdev->ifindex == ifidx) {
  91                                 result = wpan_dev;
  92                                 break;
  93                         }
  94                         if (have_wpan_dev_id &&
  95                             wpan_dev->identifier == (u32)wpan_dev_id) {
  96                                 result = wpan_dev;
  97                                 break;
  98                         }
  99                 }
 100
 101                 if (result)
 102                         break;
 103         }
 104
 105         if (result)
 106                 return result;
 107
 108         return ERR_PTR(-ENODEV);
 109 }
 110
 111 static struct cfg802154_registered_device *
 112 __cfg802154_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
 113 {
 114         struct cfg802154_registered_device *rdev = NULL, *tmp;
 115         struct net_device *netdev;
 116
 117         ASSERT_RTNL();
 118
 119         if (!attrs[NL802154_ATTR_WPAN_PHY] &&
 120             !attrs[NL802154_ATTR_IFINDEX] &&
 121             !attrs[NL802154_ATTR_WPAN_DEV])
 122                 return ERR_PTR(-EINVAL);
 123
 124         if (attrs[NL802154_ATTR_WPAN_PHY])
 125                 rdev = cfg802154_rdev_by_wpan_phy_idx(
 126                                 nla_get_u32(attrs[NL802154_ATTR_WPAN_PHY]));
 127
 128         if (attrs[NL802154_ATTR_WPAN_DEV]) {
 129                 u64 wpan_dev_id = nla_get_u64(attrs[NL802154_ATTR_WPAN_DEV]);
 130                 struct wpan_dev *wpan_dev;
 131                 bool found = false;
 132
 133                 tmp = cfg802154_rdev_by_wpan_phy_idx(wpan_dev_id >> 32);
 134                 if (tmp) {
 135                         /* make sure wpan_dev exists */
 136                         list_for_each_entry(wpan_dev, &tmp->wpan_dev_list, list) {
 137                                 if (wpan_dev->identifier != (u32)wpan_dev_id)
 138                                         continue;
 139                                 found = true;
 140                                 break;
 141                         }
 142
 143                         if (!found)
 144                                 tmp = NULL;
 145
 146                         if (rdev && tmp != rdev)
 147                                 return ERR_PTR(-EINVAL);
 148                         rdev = tmp;
 149                 }
 150         }
 151
 152         if (attrs[NL802154_ATTR_IFINDEX]) {
 153                 int ifindex = nla_get_u32(attrs[NL802154_ATTR_IFINDEX]);
 154
 155                 netdev = __dev_get_by_index(netns, ifindex);
 156                 if (netdev) {
 157                         if (netdev->ieee802154_ptr)
 158                                 tmp = wpan_phy_to_rdev(
 159                                                 netdev->ieee802154_ptr->wpan_phy);
 160                         else
 161                                 tmp = NULL;
 162
 163                         /* not wireless device -- return error */
 164                         if (!tmp)
 165                                 return ERR_PTR(-EINVAL);
 166
 167                         /* mismatch -- return error */
 168                         if (rdev && tmp != rdev)
 169                                 return ERR_PTR(-EINVAL);
 170
 171                         rdev = tmp;
 172                 }
 173         }
 174
 175         if (!rdev)
 176                 return ERR_PTR(-ENODEV);
 177
 178         /* TODO netns compare */
 179
 180         return rdev;
 181 }
 182
 183 /* This function returns a pointer to the driver
 184  * that the genl_info item that is passed refers to.
 185  *
 186  * The result of this can be a PTR_ERR and hence must
 187  * be checked with IS_ERR() for errors.
 188  */
 189 static struct cfg802154_registered_device *
 190 cfg802154_get_dev_from_info(struct net *netns, struct genl_info *info)
 191 {
 192         return __cfg802154_rdev_from_attrs(netns, info->attrs);
 193 }
 194
 195 /* policy for the attributes */
 196 static const struct nla_policy nl802154_policy[NL802154_ATTR_MAX+1] = {
 197         [NL802154_ATTR_WPAN_PHY] = { .type = NLA_U32 },
 198         [NL802154_ATTR_WPAN_PHY_NAME] = { .type = NLA_NUL_STRING,
 199                                           .len = 20-1 },
 200
 201         [NL802154_ATTR_IFINDEX] = { .type = NLA_U32 },
 202         [NL802154_ATTR_IFTYPE] = { .type = NLA_U32 },
 203         [NL802154_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
 204
 205         [NL802154_ATTR_WPAN_DEV] = { .type = NLA_U64 },
 206
 207         [NL802154_ATTR_PAGE] = { .type = NLA_U8, },
 208         [NL802154_ATTR_CHANNEL] = { .type = NLA_U8, },
 209
 210         [NL802154_ATTR_TX_POWER] = { .type = NLA_S32, },
 211
 212         [NL802154_ATTR_CCA_MODE] = { .type = NLA_U32, },
 213         [NL802154_ATTR_CCA_OPT] = { .type = NLA_U32, },
 214         [NL802154_ATTR_CCA_ED_LEVEL] = { .type = NLA_S32, },
 215
 216         [NL802154_ATTR_SUPPORTED_CHANNEL] = { .type = NLA_U32, },
 217
 218         [NL802154_ATTR_PAN_ID] = { .type = NLA_U16, },
 219         [NL802154_ATTR_EXTENDED_ADDR] = { .type = NLA_U64 },
 220         [NL802154_ATTR_SHORT_ADDR] = { .type = NLA_U16, },
 221
 222         [NL802154_ATTR_MIN_BE] = { .type = NLA_U8, },
 223         [NL802154_ATTR_MAX_BE] = { .type = NLA_U8, },
 224         [NL802154_ATTR_MAX_CSMA_BACKOFFS] = { .type = NLA_U8, },
 225
 226         [NL802154_ATTR_MAX_FRAME_RETRIES] = { .type = NLA_S8, },
 227
 228         [NL802154_ATTR_LBT_MODE] = { .type = NLA_U8, },
 229
 230         [NL802154_ATTR_WPAN_PHY_CAPS] = { .type = NLA_NESTED },
 231
 232         [NL802154_ATTR_SUPPORTED_COMMANDS] = { .type = NLA_NESTED },
 233
 234         [NL802154_ATTR_ACKREQ_DEFAULT] = { .type = NLA_U8 },
 235
 236 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
 237         [NL802154_ATTR_SEC_ENABLED] = { .type = NLA_U8, },
 238         [NL802154_ATTR_SEC_OUT_LEVEL] = { .type = NLA_U32, },
 239         [NL802154_ATTR_SEC_OUT_KEY_ID] = { .type = NLA_NESTED, },
 240         [NL802154_ATTR_SEC_FRAME_COUNTER] = { .type = NLA_U32 },
 241
 242         [NL802154_ATTR_SEC_LEVEL] = { .type = NLA_NESTED },
 243         [NL802154_ATTR_SEC_DEVICE] = { .type = NLA_NESTED },
 244         [NL802154_ATTR_SEC_DEVKEY] = { .type = NLA_NESTED },
 245         [NL802154_ATTR_SEC_KEY] = { .type = NLA_NESTED },
 246 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
 247 };
 248
 249 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
 250 static int
 251 nl802154_prepare_wpan_dev_dump(struct sk_buff *skb,
 252                                struct netlink_callback *cb,
 253                                struct cfg802154_registered_device **rdev,
 254                                struct wpan_dev **wpan_dev)
 255 {
 256         int err;
 257
 258         rtnl_lock();
 259
 260         if (!cb->args[0]) {
 261                 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl802154_fam.hdrsize,
 262                                   nl802154_fam.attrbuf, nl802154_fam.maxattr,
 263                                   nl802154_policy);
 264                 if (err)
 265                         goto out_unlock;
 266
 267                 *wpan_dev = __cfg802154_wpan_dev_from_attrs(sock_net(skb->sk),
 268                                                             nl802154_fam.attrbuf);
 269                 if (IS_ERR(*wpan_dev)) {
 270                         err = PTR_ERR(*wpan_dev);
 271                         goto out_unlock;
 272                 }
 273                 *rdev = wpan_phy_to_rdev((*wpan_dev)->wpan_phy);
 274                 /* 0 is the first index - add 1 to parse only once */
 275                 cb->args[0] = (*rdev)->wpan_phy_idx + 1;
 276                 cb->args[1] = (*wpan_dev)->identifier;
 277         } else {
 278                 /* subtract the 1 again here */
 279                 struct wpan_phy *wpan_phy = wpan_phy_idx_to_wpan_phy(cb->args[0] - 1);
 280                 struct wpan_dev *tmp;
 281
 282                 if (!wpan_phy) {
 283                         err = -ENODEV;
 284                         goto out_unlock;
 285                 }
 286                 *rdev = wpan_phy_to_rdev(wpan_phy);
 287                 *wpan_dev = NULL;
 288
 289                 list_for_each_entry(tmp, &(*rdev)->wpan_dev_list, list) {
 290                         if (tmp->identifier == cb->args[1]) {
 291                                 *wpan_dev = tmp;
 292                                 break;
 293                         }
 294                 }
 295
 296                 if (!*wpan_dev) {
 297                         err = -ENODEV;
 298                         goto out_unlock;
 299                 }
 300         }
 301
 302         return 0;
 303  out_unlock:
 304         rtnl_unlock();
 305         return err;
 306 }
 307
 308 static void
 309 nl802154_finish_wpan_dev_dump(struct cfg802154_registered_device *rdev)
 310 {
 311         rtnl_unlock();
 312 }
 313 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
 314
 315 /* message building helper */
 316 static inline void *nl802154hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
 317                                     int flags, u8 cmd)
 318 {
 319         /* since there is no private header just add the generic one */
 320         return genlmsg_put(skb, portid, seq, &nl802154_fam, flags, cmd);
 321 }
 322
 323 static int
 324 nl802154_put_flags(struct sk_buff *msg, int attr, u32 mask)
 325 {
 326         struct nlattr *nl_flags = nla_nest_start(msg, attr);
 327         int i;
 328
 329         if (!nl_flags)
 330                 return -ENOBUFS;
 331
 332         i = 0;
 333         while (mask) {
 334                 if ((mask & 1) && nla_put_flag(msg, i))
 335                         return -ENOBUFS;
 336
 337                 mask >>= 1;
 338                 i++;
 339         }
 340
 341         nla_nest_end(msg, nl_flags);
 342         return 0;
 343 }
 344
 345 static int
 346 nl802154_send_wpan_phy_channels(struct cfg802154_registered_device *rdev,
 347                                 struct sk_buff *msg)
 348 {
 349         struct nlattr *nl_page;
 350         unsigned long page;
 351
 352         nl_page = nla_nest_start(msg, NL802154_ATTR_CHANNELS_SUPPORTED);
 353         if (!nl_page)
 354                 return -ENOBUFS;
 355
 356         for (page = 0; page <= IEEE802154_MAX_PAGE; page++) {
 357                 if (nla_put_u32(msg, NL802154_ATTR_SUPPORTED_CHANNEL,
 358                                 rdev->wpan_phy.supported.channels[page]))
 359                         return -ENOBUFS;
 360         }
 361         nla_nest_end(msg, nl_page);
 362
 363         return 0;
 364 }
 365
 366 static int
 367 nl802154_put_capabilities(struct sk_buff *msg,
 368                           struct cfg802154_registered_device *rdev)
 369 {
 370         const struct wpan_phy_supported *caps = &rdev->wpan_phy.supported;
 371         struct nlattr *nl_caps, *nl_channels;
 372         int i;
 373
 374         nl_caps = nla_nest_start(msg, NL802154_ATTR_WPAN_PHY_CAPS);
 375         if (!nl_caps)
 376                 return -ENOBUFS;
 377
 378         nl_channels = nla_nest_start(msg, NL802154_CAP_ATTR_CHANNELS);
 379         if (!nl_channels)
 380                 return -ENOBUFS;
 381
 382         for (i = 0; i <= IEEE802154_MAX_PAGE; i++) {
 383                 if (caps->channels[i]) {
 384                         if (nl802154_put_flags(msg, i, caps->channels[i]))
 385                                 return -ENOBUFS;
 386                 }
 387         }
 388
 389         nla_nest_end(msg, nl_channels);
 390
 391         if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL) {
 392                 struct nlattr *nl_ed_lvls;
 393
 394                 nl_ed_lvls = nla_nest_start(msg,
 395                                             NL802154_CAP_ATTR_CCA_ED_LEVELS);
 396                 if (!nl_ed_lvls)
 397                         return -ENOBUFS;
 398
 399                 for (i = 0; i < caps->cca_ed_levels_size; i++) {
 400                         if (nla_put_s32(msg, i, caps->cca_ed_levels[i]))
 401                                 return -ENOBUFS;
 402                 }
 403
 404                 nla_nest_end(msg, nl_ed_lvls);
 405         }
 406
 407         if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER) {
 408                 struct nlattr *nl_tx_pwrs;
 409
 410                 nl_tx_pwrs = nla_nest_start(msg, NL802154_CAP_ATTR_TX_POWERS);
 411                 if (!nl_tx_pwrs)
 412                         return -ENOBUFS;
 413
 414                 for (i = 0; i < caps->tx_powers_size; i++) {
 415                         if (nla_put_s32(msg, i, caps->tx_powers[i]))
 416                                 return -ENOBUFS;
 417                 }
 418
 419                 nla_nest_end(msg, nl_tx_pwrs);
 420         }
 421
 422         if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE) {
 423                 if (nl802154_put_flags(msg, NL802154_CAP_ATTR_CCA_MODES,
 424                                        caps->cca_modes) ||
 425                     nl802154_put_flags(msg, NL802154_CAP_ATTR_CCA_OPTS,
 426                                        caps->cca_opts))
 427                         return -ENOBUFS;
 428         }
 429
 430         if (nla_put_u8(msg, NL802154_CAP_ATTR_MIN_MINBE, caps->min_minbe) ||
 431             nla_put_u8(msg, NL802154_CAP_ATTR_MAX_MINBE, caps->max_minbe) ||
 432             nla_put_u8(msg, NL802154_CAP_ATTR_MIN_MAXBE, caps->min_maxbe) ||
 433             nla_put_u8(msg, NL802154_CAP_ATTR_MAX_MAXBE, caps->max_maxbe) ||
 434             nla_put_u8(msg, NL802154_CAP_ATTR_MIN_CSMA_BACKOFFS,
 435                        caps->min_csma_backoffs) ||
 436             nla_put_u8(msg, NL802154_CAP_ATTR_MAX_CSMA_BACKOFFS,
 437                        caps->max_csma_backoffs) ||
 438             nla_put_s8(msg, NL802154_CAP_ATTR_MIN_FRAME_RETRIES,
 439                        caps->min_frame_retries) ||
 440             nla_put_s8(msg, NL802154_CAP_ATTR_MAX_FRAME_RETRIES,
 441                        caps->max_frame_retries) ||
 442             nl802154_put_flags(msg, NL802154_CAP_ATTR_IFTYPES,
 443                                caps->iftypes) ||
 444             nla_put_u32(msg, NL802154_CAP_ATTR_LBT, caps->lbt))
 445                 return -ENOBUFS;
 446
 447         nla_nest_end(msg, nl_caps);
 448
 449         return 0;
 450 }
 451
 452 static int nl802154_send_wpan_phy(struct cfg802154_registered_device *rdev,
 453                                   enum nl802154_commands cmd,
 454                                   struct sk_buff *msg, u32 portid, u32 seq,
 455                                   int flags)
 456 {
 457         struct nlattr *nl_cmds;
 458         void *hdr;
 459         int i;
 460
 461         hdr = nl802154hdr_put(msg, portid, seq, flags, cmd);
 462         if (!hdr)
 463                 return -ENOBUFS;
 464
 465         if (nla_put_u32(msg, NL802154_ATTR_WPAN_PHY, rdev->wpan_phy_idx) ||
 466             nla_put_string(msg, NL802154_ATTR_WPAN_PHY_NAME,
 467                            wpan_phy_name(&rdev->wpan_phy)) ||
 468             nla_put_u32(msg, NL802154_ATTR_GENERATION,
 469                         cfg802154_rdev_list_generation))
 470                 goto nla_put_failure;
 471
 472         if (cmd != NL802154_CMD_NEW_WPAN_PHY)
 473                 goto finish;
 474
 475         /* DUMP PHY PIB */
 476
 477         /* current channel settings */
 478         if (nla_put_u8(msg, NL802154_ATTR_PAGE,
 479                        rdev->wpan_phy.current_page) ||
 480             nla_put_u8(msg, NL802154_ATTR_CHANNEL,
 481                        rdev->wpan_phy.current_channel))
 482                 goto nla_put_failure;
 483
 484         /* TODO remove this behaviour, we still keep support it for a while
 485          * so users can change the behaviour to the new one.
 486          */
 487         if (nl802154_send_wpan_phy_channels(rdev, msg))
 488                 goto nla_put_failure;
 489
 490         /* cca mode */
 491         if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE) {
 492                 if (nla_put_u32(msg, NL802154_ATTR_CCA_MODE,
 493                                 rdev->wpan_phy.cca.mode))
 494                         goto nla_put_failure;
 495
 496                 if (rdev->wpan_phy.cca.mode == NL802154_CCA_ENERGY_CARRIER) {
 497                         if (nla_put_u32(msg, NL802154_ATTR_CCA_OPT,
 498                                         rdev->wpan_phy.cca.opt))
 499                                 goto nla_put_failure;
 500                 }
 501         }
 502
 503         if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER) {
 504                 if (nla_put_s32(msg, NL802154_ATTR_TX_POWER,
 505                                 rdev->wpan_phy.transmit_power))
 506                         goto nla_put_failure;
 507         }
 508
 509         if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL) {
 510                 if (nla_put_s32(msg, NL802154_ATTR_CCA_ED_LEVEL,
 511                                 rdev->wpan_phy.cca_ed_level))
 512                         goto nla_put_failure;
 513         }
 514
 515         if (nl802154_put_capabilities(msg, rdev))
 516                 goto nla_put_failure;
 517
 518         nl_cmds = nla_nest_start(msg, NL802154_ATTR_SUPPORTED_COMMANDS);
 519         if (!nl_cmds)
 520                 goto nla_put_failure;
 521
 522         i = 0;
 523 #define CMD(op, n)                                                      \
 524         do {                                                            \
 525                 if (rdev->ops->op) {                                    \
 526                         i++;                                            \
 527                         if (nla_put_u32(msg, i, NL802154_CMD_ ## n))    \
 528                                 goto nla_put_failure;                   \
 529                 }                                                       \
 530         } while (0)
 531
 532         CMD(add_virtual_intf, NEW_INTERFACE);
 533         CMD(del_virtual_intf, DEL_INTERFACE);
 534         CMD(set_channel, SET_CHANNEL);
 535         CMD(set_pan_id, SET_PAN_ID);
 536         CMD(set_short_addr, SET_SHORT_ADDR);
 537         CMD(set_backoff_exponent, SET_BACKOFF_EXPONENT);
 538         CMD(set_max_csma_backoffs, SET_MAX_CSMA_BACKOFFS);
 539         CMD(set_max_frame_retries, SET_MAX_FRAME_RETRIES);
 540         CMD(set_lbt_mode, SET_LBT_MODE);
 541         CMD(set_ackreq_default, SET_ACKREQ_DEFAULT);
 542
 543         if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER)
 544                 CMD(set_tx_power, SET_TX_POWER);
 545
 546         if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL)
 547                 CMD(set_cca_ed_level, SET_CCA_ED_LEVEL);
 548
 549         if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE)
 550                 CMD(set_cca_mode, SET_CCA_MODE);
 551
 552 #undef CMD
 553         nla_nest_end(msg, nl_cmds);
 554
 555 finish:
 556         genlmsg_end(msg, hdr);
 557         return 0;
 558
 559 nla_put_failure:
 560         genlmsg_cancel(msg, hdr);
 561         return -EMSGSIZE;
 562 }
 563
 564 struct nl802154_dump_wpan_phy_state {
 565         s64 filter_wpan_phy;
 566         long start;
 567
 568 };
 569
 570 static int nl802154_dump_wpan_phy_parse(struct sk_buff *skb,
 571                                         struct netlink_callback *cb,
 572                                         struct nl802154_dump_wpan_phy_state *state)
 573 {
 574         struct nlattr **tb = nl802154_fam.attrbuf;
 575         int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl802154_fam.hdrsize,
 576                               tb, nl802154_fam.maxattr, nl802154_policy);
 577
 578         /* TODO check if we can handle error here,
 579          * we have no backward compatibility
 580          */
 581         if (ret)
 582                 return 0;
 583
 584         if (tb[NL802154_ATTR_WPAN_PHY])
 585                 state->filter_wpan_phy = nla_get_u32(tb[NL802154_ATTR_WPAN_PHY]);
 586         if (tb[NL802154_ATTR_WPAN_DEV])
 587                 state->filter_wpan_phy = nla_get_u64(tb[NL802154_ATTR_WPAN_DEV]) >> 32;
 588         if (tb[NL802154_ATTR_IFINDEX]) {
 589                 struct net_device *netdev;
 590                 struct cfg802154_registered_device *rdev;
 591                 int ifidx = nla_get_u32(tb[NL802154_ATTR_IFINDEX]);
 592
 593                 /* TODO netns */
 594                 netdev = __dev_get_by_index(&init_net, ifidx);
 595                 if (!netdev)
 596                         return -ENODEV;
 597                 if (netdev->ieee802154_ptr) {
 598                         rdev = wpan_phy_to_rdev(
 599                                         netdev->ieee802154_ptr->wpan_phy);
 600                         state->filter_wpan_phy = rdev->wpan_phy_idx;
 601                 }
 602         }
 603
 604         return 0;
 605 }
 606
 607 static int
 608 nl802154_dump_wpan_phy(struct sk_buff *skb, struct netlink_callback *cb)
 609 {
 610         int idx = 0, ret;
 611         struct nl802154_dump_wpan_phy_state *state = (void *)cb->args[0];
 612         struct cfg802154_registered_device *rdev;
 613
 614         rtnl_lock();
 615         if (!state) {
 616                 state = kzalloc(sizeof(*state), GFP_KERNEL);
 617                 if (!state) {
 618                         rtnl_unlock();
 619                         return -ENOMEM;
 620                 }
 621                 state->filter_wpan_phy = -1;
 622                 ret = nl802154_dump_wpan_phy_parse(skb, cb, state);
 623                 if (ret) {
 624                         kfree(state);
 625                         rtnl_unlock();
 626                         return ret;
 627                 }
 628                 cb->args[0] = (long)state;
 629         }
 630
 631         list_for_each_entry(rdev, &cfg802154_rdev_list, list) {
 632                 /* TODO net ns compare */
 633                 if (++idx <= state->start)
 634                         continue;
 635                 if (state->filter_wpan_phy != -1 &&
 636                     state->filter_wpan_phy != rdev->wpan_phy_idx)
 637                         continue;
 638                 /* attempt to fit multiple wpan_phy data chunks into the skb */
 639                 ret = nl802154_send_wpan_phy(rdev,
 640                                              NL802154_CMD_NEW_WPAN_PHY,
 641                                              skb,
 642                                              NETLINK_CB(cb->skb).portid,
 643                                              cb->nlh->nlmsg_seq, NLM_F_MULTI);
 644                 if (ret < 0) {
 645                         if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
 646                             !skb->len && cb->min_dump_alloc < 4096) {
 647                                 cb->min_dump_alloc = 4096;
 648                                 rtnl_unlock();
 649                                 return 1;
 650                         }
 651                         idx--;
 652                         break;
 653                 }
 654                 break;
 655         }
 656         rtnl_unlock();
 657
 658         state->start = idx;
 659
 660         return skb->len;
 661 }
 662
 663 static int nl802154_dump_wpan_phy_done(struct netlink_callback *cb)
 664 {
 665         kfree((void *)cb->args[0]);
 666         return 0;
 667 }
 668
 669 static int nl802154_get_wpan_phy(struct sk_buff *skb, struct genl_info *info)
 670 {
 671         struct sk_buff *msg;
 672         struct cfg802154_registered_device *rdev = info->user_ptr[0];
 673
 674         msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
 675         if (!msg)
 676                 return -ENOMEM;
 677
 678         if (nl802154_send_wpan_phy(rdev, NL802154_CMD_NEW_WPAN_PHY, msg,
 679                                    info->snd_portid, info->snd_seq, 0) < 0) {
 680                 nlmsg_free(msg);
 681                 return -ENOBUFS;
 682         }
 683
 684         return genlmsg_reply(msg, info);
 685 }
 686
 687 static inline u64 wpan_dev_id(struct wpan_dev *wpan_dev)
 688 {
 689         return (u64)wpan_dev->identifier |
 690                ((u64)wpan_phy_to_rdev(wpan_dev->wpan_phy)->wpan_phy_idx << 32);
 691 }
 692
 693 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
 694 #include <net/ieee802154_netdev.h>
 695
 696 static int
 697 ieee802154_llsec_send_key_id(struct sk_buff *msg,
 698                              const struct ieee802154_llsec_key_id *desc)
 699 {
 700         struct nlattr *nl_dev_addr;
 701
 702         if (nla_put_u32(msg, NL802154_KEY_ID_ATTR_MODE, desc->mode))
 703                 return -ENOBUFS;
 704
 705         switch (desc->mode) {
 706         case NL802154_KEY_ID_MODE_IMPLICIT:
 707                 nl_dev_addr = nla_nest_start(msg, NL802154_KEY_ID_ATTR_IMPLICIT);
 708                 if (!nl_dev_addr)
 709                         return -ENOBUFS;
 710
 711                 if (nla_put_le16(msg, NL802154_DEV_ADDR_ATTR_PAN_ID,
 712                                  desc->device_addr.pan_id) ||
 713                     nla_put_u32(msg,  NL802154_DEV_ADDR_ATTR_MODE,
 714                                 desc->device_addr.mode))
 715                         return -ENOBUFS;
 716
 717                 switch (desc->device_addr.mode) {
 718                 case NL802154_DEV_ADDR_SHORT:
 719                         if (nla_put_le16(msg, NL802154_DEV_ADDR_ATTR_SHORT,
 720                                          desc->device_addr.short_addr))
 721                                 return -ENOBUFS;
 722                         break;
 723                 case NL802154_DEV_ADDR_EXTENDED:
 724                         if (nla_put_le64(msg, NL802154_DEV_ADDR_ATTR_EXTENDED,
 725                                          desc->device_addr.extended_addr,
 726                                          NL802154_DEV_ADDR_ATTR_PAD))
 727                                 return -ENOBUFS;
 728                         break;
 729                 default:
 730                         /* userspace should handle unknown */
 731                         break;
 732                 }
 733
 734                 nla_nest_end(msg, nl_dev_addr);
 735                 break;
 736         case NL802154_KEY_ID_MODE_INDEX:
 737                 break;
 738         case NL802154_KEY_ID_MODE_INDEX_SHORT:
 739                 /* TODO renmae short_source? */
 740                 if (nla_put_le32(msg, NL802154_KEY_ID_ATTR_SOURCE_SHORT,
 741                                  desc->short_source))
 742                         return -ENOBUFS;
 743                 break;
 744         case NL802154_KEY_ID_MODE_INDEX_EXTENDED:
 745                 if (nla_put_le64(msg, NL802154_KEY_ID_ATTR_SOURCE_EXTENDED,
 746                                  desc->extended_source,
 747                                  NL802154_KEY_ID_ATTR_PAD))
 748                         return -ENOBUFS;
 749                 break;
 750         default:
 751                 /* userspace should handle unknown */
 752                 break;
 753         }
 754
 755         /* TODO key_id to key_idx ? Check naming */
 756         if (desc->mode != NL802154_KEY_ID_MODE_IMPLICIT) {
 757                 if (nla_put_u8(msg, NL802154_KEY_ID_ATTR_INDEX, desc->id))
 758                         return -ENOBUFS;
 759         }
 760
 761         return 0;
 762 }
 763
 764 static int nl802154_get_llsec_params(struct sk_buff *msg,
 765                                      struct cfg802154_registered_device *rdev,
 766                                      struct wpan_dev *wpan_dev)
 767 {
 768         struct nlattr *nl_key_id;
 769         struct ieee802154_llsec_params params;
 770         int ret;
 771
 772         ret = rdev_get_llsec_params(rdev, wpan_dev, &params);
 773         if (ret < 0)
 774                 return ret;
 775
 776         if (nla_put_u8(msg, NL802154_ATTR_SEC_ENABLED, params.enabled) ||
 777             nla_put_u32(msg, NL802154_ATTR_SEC_OUT_LEVEL, params.out_level) ||
 778             nla_put_be32(msg, NL802154_ATTR_SEC_FRAME_COUNTER,
 779                          params.frame_counter))
 780                 return -ENOBUFS;
 781
 782         nl_key_id = nla_nest_start(msg, NL802154_ATTR_SEC_OUT_KEY_ID);
 783         if (!nl_key_id)
 784                 return -ENOBUFS;
 785
 786         ret = ieee802154_llsec_send_key_id(msg, &params.out_key);
 787         if (ret < 0)
 788                 return ret;
 789
 790         nla_nest_end(msg, nl_key_id);
 791
 792         return 0;
 793 }
 794 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
 795
 796 static int
 797 nl802154_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
 798                     struct cfg802154_registered_device *rdev,
 799                     struct wpan_dev *wpan_dev)
 800 {
 801         struct net_device *dev = wpan_dev->netdev;
 802         void *hdr;
 803
 804         hdr = nl802154hdr_put(msg, portid, seq, flags,
 805                               NL802154_CMD_NEW_INTERFACE);
 806         if (!hdr)
 807                 return -1;
 808
 809         if (dev &&
 810             (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex) ||
 811              nla_put_string(msg, NL802154_ATTR_IFNAME, dev->name)))
 812                 goto nla_put_failure;
 813
 814         if (nla_put_u32(msg, NL802154_ATTR_WPAN_PHY, rdev->wpan_phy_idx) ||
 815             nla_put_u32(msg, NL802154_ATTR_IFTYPE, wpan_dev->iftype) ||
 816             nla_put_u64_64bit(msg, NL802154_ATTR_WPAN_DEV,
 817                               wpan_dev_id(wpan_dev), NL802154_ATTR_PAD) ||
 818             nla_put_u32(msg, NL802154_ATTR_GENERATION,
 819                         rdev->devlist_generation ^
 820                         (cfg802154_rdev_list_generation << 2)))
 821                 goto nla_put_failure;
 822
 823         /* address settings */
 824         if (nla_put_le64(msg, NL802154_ATTR_EXTENDED_ADDR,
 825                          wpan_dev->extended_addr,
 826                          NL802154_ATTR_PAD) ||
 827             nla_put_le16(msg, NL802154_ATTR_SHORT_ADDR,
 828                          wpan_dev->short_addr) ||
 829             nla_put_le16(msg, NL802154_ATTR_PAN_ID, wpan_dev->pan_id))
 830                 goto nla_put_failure;
 831
 832         /* ARET handling */
 833         if (nla_put_s8(msg, NL802154_ATTR_MAX_FRAME_RETRIES,
 834                        wpan_dev->frame_retries) ||
 835             nla_put_u8(msg, NL802154_ATTR_MAX_BE, wpan_dev->max_be) ||
 836             nla_put_u8(msg, NL802154_ATTR_MAX_CSMA_BACKOFFS,
 837                        wpan_dev->csma_retries) ||
 838             nla_put_u8(msg, NL802154_ATTR_MIN_BE, wpan_dev->min_be))
 839                 goto nla_put_failure;
 840
 841         /* listen before transmit */
 842         if (nla_put_u8(msg, NL802154_ATTR_LBT_MODE, wpan_dev->lbt))
 843                 goto nla_put_failure;
 844
 845         /* ackreq default behaviour */
 846         if (nla_put_u8(msg, NL802154_ATTR_ACKREQ_DEFAULT, wpan_dev->ackreq))
 847                 goto nla_put_failure;
 848
 849 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
 850         if (nl802154_get_llsec_params(msg, rdev, wpan_dev) < 0)
 851                 goto nla_put_failure;
 852 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
 853
 854         genlmsg_end(msg, hdr);
 855         return 0;
 856
 857 nla_put_failure:
 858         genlmsg_cancel(msg, hdr);
 859         return -EMSGSIZE;
 860 }
 861
 862 static int
 863 nl802154_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
 864 {
 865         int wp_idx = 0;
 866         int if_idx = 0;
 867         int wp_start = cb->args[0];
 868         int if_start = cb->args[1];
 869         struct cfg802154_registered_device *rdev;
 870         struct wpan_dev *wpan_dev;
 871
 872         rtnl_lock();
 873         list_for_each_entry(rdev, &cfg802154_rdev_list, list) {
 874                 /* TODO netns compare */
 875                 if (wp_idx < wp_start) {
 876                         wp_idx++;
 877                         continue;
 878                 }
 879                 if_idx = 0;
 880
 881                 list_for_each_entry(wpan_dev, &rdev->wpan_dev_list, list) {
 882                         if (if_idx < if_start) {
 883                                 if_idx++;
 884                                 continue;
 885                         }
 886                         if (nl802154_send_iface(skb, NETLINK_CB(cb->skb).portid,
 887                                                 cb->nlh->nlmsg_seq, NLM_F_MULTI,
 888                                                 rdev, wpan_dev) < 0) {
 889                                 goto out;
 890                         }
 891                         if_idx++;
 892                 }
 893
 894                 wp_idx++;
 895         }
 896 out:
 897         rtnl_unlock();
 898
 899         cb->args[0] = wp_idx;
 900         cb->args[1] = if_idx;
 901
 902         return skb->len;
 903 }
 904
 905 static int nl802154_get_interface(struct sk_buff *skb, struct genl_info *info)
 906 {
 907         struct sk_buff *msg;
 908         struct cfg802154_registered_device *rdev = info->user_ptr[0];
 909         struct wpan_dev *wdev = info->user_ptr[1];
 910
 911         msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
 912         if (!msg)
 913                 return -ENOMEM;
 914
 915         if (nl802154_send_iface(msg, info->snd_portid, info->snd_seq, 0,
 916                                 rdev, wdev) < 0) {
 917                 nlmsg_free(msg);
 918                 return -ENOBUFS;
 919         }
 920
 921         return genlmsg_reply(msg, info);
 922 }
 923
 924 static int nl802154_new_interface(struct sk_buff *skb, struct genl_info *info)
 925 {
 926         struct cfg802154_registered_device *rdev = info->user_ptr[0];
 927         enum nl802154_iftype type = NL802154_IFTYPE_UNSPEC;
 928         __le64 extended_addr = cpu_to_le64(0x0000000000000000ULL);
 929
 930         /* TODO avoid failing a new interface
 931          * creation due to pending removal?
 932          */
 933
 934         if (!info->attrs[NL802154_ATTR_IFNAME])
 935                 return -EINVAL;
 936
 937         if (info->attrs[NL802154_ATTR_IFTYPE]) {
 938                 type = nla_get_u32(info->attrs[NL802154_ATTR_IFTYPE]);
 939                 if (type > NL802154_IFTYPE_MAX ||
 940                     !(rdev->wpan_phy.supported.iftypes & BIT(type)))
 941                         return -EINVAL;
 942         }
 943
 944         if (info->attrs[NL802154_ATTR_EXTENDED_ADDR])
 945                 extended_addr = nla_get_le64(info->attrs[NL802154_ATTR_EXTENDED_ADDR]);
 946
 947         if (!rdev->ops->add_virtual_intf)
 948                 return -EOPNOTSUPP;
 949
 950         return rdev_add_virtual_intf(rdev,
 951                                      nla_data(info->attrs[NL802154_ATTR_IFNAME]),
 952                                      NET_NAME_USER, type, extended_addr);
 953 }
 954
 955 static int nl802154_del_interface(struct sk_buff *skb, struct genl_info *info)
 956 {
 957         struct cfg802154_registered_device *rdev = info->user_ptr[0];
 958         struct wpan_dev *wpan_dev = info->user_ptr[1];
 959
 960         if (!rdev->ops->del_virtual_intf)
 961                 return -EOPNOTSUPP;
 962
 963         /* If we remove a wpan device without a netdev then clear
 964          * user_ptr[1] so that nl802154_post_doit won't dereference it
 965          * to check if it needs to do dev_put(). Otherwise it crashes
 966          * since the wpan_dev has been freed, unlike with a netdev where
 967          * we need the dev_put() for the netdev to really be freed.
 968          */
 969         if (!wpan_dev->netdev)
 970                 info->user_ptr[1] = NULL;
 971
 972         return rdev_del_virtual_intf(rdev, wpan_dev);
 973 }
 974
 975 static int nl802154_set_channel(struct sk_buff *skb, struct genl_info *info)
 976 {
 977         struct cfg802154_registered_device *rdev = info->user_ptr[0];
 978         u8 channel, page;
 979
 980         if (!info->attrs[NL802154_ATTR_PAGE] ||
 981             !info->attrs[NL802154_ATTR_CHANNEL])
 982                 return -EINVAL;
 983
 984         page = nla_get_u8(info->attrs[NL802154_ATTR_PAGE]);
 985         channel = nla_get_u8(info->attrs[NL802154_ATTR_CHANNEL]);
 986
 987         /* check 802.15.4 constraints */
 988         if (page > IEEE802154_MAX_PAGE || channel > IEEE802154_MAX_CHANNEL ||
 989             !(rdev->wpan_phy.supported.channels[page] & BIT(channel)))
 990                 return -EINVAL;
 991
 992         return rdev_set_channel(rdev, page, channel);
 993 }
 994
 995 static int nl802154_set_cca_mode(struct sk_buff *skb, struct genl_info *info)
 996 {
 997         struct cfg802154_registered_device *rdev = info->user_ptr[0];
 998         struct wpan_phy_cca cca;
 999
1000         if (!(rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE))
1001                 return -EOPNOTSUPP;
1002
1003         if (!info->attrs[NL802154_ATTR_CCA_MODE])
1004                 return -EINVAL;
1005
1006         cca.mode = nla_get_u32(info->attrs[NL802154_ATTR_CCA_MODE]);
1007         /* checking 802.15.4 constraints */
1008         if (cca.mode < NL802154_CCA_ENERGY ||
1009             cca.mode > NL802154_CCA_ATTR_MAX ||
1010             !(rdev->wpan_phy.supported.cca_modes & BIT(cca.mode)))
1011                 return -EINVAL;
1012
1013         if (cca.mode == NL802154_CCA_ENERGY_CARRIER) {
1014                 if (!info->attrs[NL802154_ATTR_CCA_OPT])
1015                         return -EINVAL;
1016
1017                 cca.opt = nla_get_u32(info->attrs[NL802154_ATTR_CCA_OPT]);
1018                 if (cca.opt > NL802154_CCA_OPT_ATTR_MAX ||
1019                     !(rdev->wpan_phy.supported.cca_opts & BIT(cca.opt)))
1020                         return -EINVAL;
1021         }
1022
1023         return rdev_set_cca_mode(rdev, &cca);
1024 }
1025
1026 static int nl802154_set_cca_ed_level(struct sk_buff *skb, struct genl_info *info)
1027 {
1028         struct cfg802154_registered_device *rdev = info->user_ptr[0];
1029         s32 ed_level;
1030         int i;
1031
1032         if (!(rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL))
1033                 return -EOPNOTSUPP;
1034
1035         if (!info->attrs[NL802154_ATTR_CCA_ED_LEVEL])
1036                 return -EINVAL;
1037
1038         ed_level = nla_get_s32(info->attrs[NL802154_ATTR_CCA_ED_LEVEL]);
1039
1040         for (i = 0; i < rdev->wpan_phy.supported.cca_ed_levels_size; i++) {
1041                 if (ed_level == rdev->wpan_phy.supported.cca_ed_levels[i])
1042                         return rdev_set_cca_ed_level(rdev, ed_level);
1043         }
1044
1045         return -EINVAL;
1046 }
1047
1048 static int nl802154_set_tx_power(struct sk_buff *skb, struct genl_info *info)
1049 {
1050         struct cfg802154_registered_device *rdev = info->user_ptr[0];
1051         s32 power;
1052         int i;
1053
1054         if (!(rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER))
1055                 return -EOPNOTSUPP;
1056
1057         if (!info->attrs[NL802154_ATTR_TX_POWER])
1058                 return -EINVAL;
1059
1060         power = nla_get_s32(info->attrs[NL802154_ATTR_TX_POWER]);
1061
1062         for (i = 0; i < rdev->wpan_phy.supported.tx_powers_size; i++) {
1063                 if (power == rdev->wpan_phy.supported.tx_powers[i])
1064                         return rdev_set_tx_power(rdev, power);
1065         }
1066
1067         return -EINVAL;
1068 }
1069
1070 static int nl802154_set_pan_id(struct sk_buff *skb, struct genl_info *info)
1071 {
1072         struct cfg802154_registered_device *rdev = info->user_ptr[0];
1073         struct net_device *dev = info->user_ptr[1];
1074         struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1075         __le16 pan_id;
1076
1077         /* conflict here while tx/rx calls */
1078         if (netif_running(dev))
1079                 return -EBUSY;
1080
1081         if (wpan_dev->lowpan_dev) {
1082                 if (netif_running(wpan_dev->lowpan_dev))
1083                         return -EBUSY;
1084         }
1085
1086         /* don't change address fields on monitor */
1087         if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR ||
1088             !info->attrs[NL802154_ATTR_PAN_ID])
1089                 return -EINVAL;
1090
1091         pan_id = nla_get_le16(info->attrs[NL802154_ATTR_PAN_ID]);
1092
1093         /* TODO
1094          * I am not sure about to check here on broadcast pan_id.
1095          * Broadcast is a valid setting, comment from 802.15.4:
1096          * If this value is 0xffff, the device is not associated.
1097          *
1098          * This could useful to simple deassociate an device.
1099          */
1100         if (pan_id == cpu_to_le16(IEEE802154_PAN_ID_BROADCAST))
1101                 return -EINVAL;
1102
1103         return rdev_set_pan_id(rdev, wpan_dev, pan_id);
1104 }
1105
1106 static int nl802154_set_short_addr(struct sk_buff *skb, struct genl_info *info)
1107 {
1108         struct cfg802154_registered_device *rdev = info->user_ptr[0];
1109         struct net_device *dev = info->user_ptr[1];
1110         struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1111         __le16 short_addr;
1112
1113         /* conflict here while tx/rx calls */
1114         if (netif_running(dev))
1115                 return -EBUSY;
1116
1117         if (wpan_dev->lowpan_dev) {
1118                 if (netif_running(wpan_dev->lowpan_dev))
1119                         return -EBUSY;
1120         }
1121
1122         /* don't change address fields on monitor */
1123         if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR ||
1124             !info->attrs[NL802154_ATTR_SHORT_ADDR])
1125                 return -EINVAL;
1126
1127         short_addr = nla_get_le16(info->attrs[NL802154_ATTR_SHORT_ADDR]);
1128
1129         /* TODO
1130          * I am not sure about to check here on broadcast short_addr.
1131          * Broadcast is a valid setting, comment from 802.15.4:
1132          * A value of 0xfffe indicates that the device has
1133          * associated but has not been allocated an address. A
1134          * value of 0xffff indicates that the device does not
1135          * have a short address.
1136          *
1137          * I think we should allow to set these settings but
1138          * don't allow to allow socket communication with it.
1139          */
1140         if (short_addr == cpu_to_le16(IEEE802154_ADDR_SHORT_UNSPEC) ||
1141             short_addr == cpu_to_le16(IEEE802154_ADDR_SHORT_BROADCAST))
1142                 return -EINVAL;
1143
1144         return rdev_set_short_addr(rdev, wpan_dev, short_addr);
1145 }
1146
1147 static int
1148 nl802154_set_backoff_exponent(struct sk_buff *skb, struct genl_info *info)
1149 {
1150         struct cfg802154_registered_device *rdev = info->user_ptr[0];
1151         struct net_device *dev = info->user_ptr[1];
1152         struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1153         u8 min_be, max_be;
1154
1155         /* should be set on netif open inside phy settings */
1156         if (netif_running(dev))
1157                 return -EBUSY;
1158
1159         if (!info->attrs[NL802154_ATTR_MIN_BE] ||
1160             !info->attrs[NL802154_ATTR_MAX_BE])
1161                 return -EINVAL;
1162
1163         min_be = nla_get_u8(info->attrs[NL802154_ATTR_MIN_BE]);
1164         max_be = nla_get_u8(info->attrs[NL802154_ATTR_MAX_BE]);
1165
1166         /* check 802.15.4 constraints */
1167         if (min_be < rdev->wpan_phy.supported.min_minbe ||
1168             min_be > rdev->wpan_phy.supported.max_minbe ||
1169             max_be < rdev->wpan_phy.supported.min_maxbe ||
1170             max_be > rdev->wpan_phy.supported.max_maxbe ||
1171             min_be > max_be)
1172                 return -EINVAL;
1173
1174         return rdev_set_backoff_exponent(rdev, wpan_dev, min_be, max_be);
1175 }
1176
1177 static int
1178 nl802154_set_max_csma_backoffs(struct sk_buff *skb, struct genl_info *info)
1179 {
1180         struct cfg802154_registered_device *rdev = info->user_ptr[0];
1181         struct net_device *dev = info->user_ptr[1];
1182         struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1183         u8 max_csma_backoffs;
1184
1185         /* conflict here while other running iface settings */
1186         if (netif_running(dev))
1187                 return -EBUSY;
1188
1189         if (!info->attrs[NL802154_ATTR_MAX_CSMA_BACKOFFS])
1190                 return -EINVAL;
1191
1192         max_csma_backoffs = nla_get_u8(
1193                         info->attrs[NL802154_ATTR_MAX_CSMA_BACKOFFS]);
1194
1195         /* check 802.15.4 constraints */
1196         if (max_csma_backoffs < rdev->wpan_phy.supported.min_csma_backoffs ||
1197             max_csma_backoffs > rdev->wpan_phy.supported.max_csma_backoffs)
1198                 return -EINVAL;
1199
1200         return rdev_set_max_csma_backoffs(rdev, wpan_dev, max_csma_backoffs);
1201 }
1202
1203 static int
1204 nl802154_set_max_frame_retries(struct sk_buff *skb, struct genl_info *info)
1205 {
1206         struct cfg802154_registered_device *rdev = info->user_ptr[0];
1207         struct net_device *dev = info->user_ptr[1];
1208         struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1209         s8 max_frame_retries;
1210
1211         if (netif_running(dev))
1212                 return -EBUSY;
1213
1214         if (!info->attrs[NL802154_ATTR_MAX_FRAME_RETRIES])
1215                 return -EINVAL;
1216
1217         max_frame_retries = nla_get_s8(
1218                         info->attrs[NL802154_ATTR_MAX_FRAME_RETRIES]);
1219
1220         /* check 802.15.4 constraints */
1221         if (max_frame_retries < rdev->wpan_phy.supported.min_frame_retries ||
1222             max_frame_retries > rdev->wpan_phy.supported.max_frame_retries)
1223                 return -EINVAL;
1224
1225         return rdev_set_max_frame_retries(rdev, wpan_dev, max_frame_retries);
1226 }
1227
1228 static int nl802154_set_lbt_mode(struct sk_buff *skb, struct genl_info *info)
1229 {
1230         struct cfg802154_registered_device *rdev = info->user_ptr[0];
1231         struct net_device *dev = info->user_ptr[1];
1232         struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1233         int mode;
1234
1235         if (netif_running(dev))
1236                 return -EBUSY;
1237
1238         if (!info->attrs[NL802154_ATTR_LBT_MODE])
1239                 return -EINVAL;
1240
1241         mode = nla_get_u8(info->attrs[NL802154_ATTR_LBT_MODE]);
1242
1243         if (mode != 0 && mode != 1)
1244                 return -EINVAL;
1245
1246         if (!wpan_phy_supported_bool(mode, rdev->wpan_phy.supported.lbt))
1247                 return -EINVAL;
1248
1249         return rdev_set_lbt_mode(rdev, wpan_dev, mode);
1250 }
1251
1252 static int
1253 nl802154_set_ackreq_default(struct sk_buff *skb, struct genl_info *info)
1254 {
1255         struct cfg802154_registered_device *rdev = info->user_ptr[0];
1256         struct net_device *dev = info->user_ptr[1];
1257         struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1258         int ackreq;
1259
1260         if (netif_running(dev))
1261                 return -EBUSY;
1262
1263         if (!info->attrs[NL802154_ATTR_ACKREQ_DEFAULT])
1264                 return -EINVAL;
1265
1266         ackreq = nla_get_u8(info->attrs[NL802154_ATTR_ACKREQ_DEFAULT]);
1267
1268         if (ackreq != 0 && ackreq != 1)
1269                 return -EINVAL;
1270
1271         return rdev_set_ackreq_default(rdev, wpan_dev, ackreq);
1272 }
1273
1274 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
1275 static const struct nla_policy nl802154_dev_addr_policy[NL802154_DEV_ADDR_ATTR_MAX + 1] = {
1276         [NL802154_DEV_ADDR_ATTR_PAN_ID] = { .type = NLA_U16 },
1277         [NL802154_DEV_ADDR_ATTR_MODE] = { .type = NLA_U32 },
1278         [NL802154_DEV_ADDR_ATTR_SHORT] = { .type = NLA_U16 },
1279         [NL802154_DEV_ADDR_ATTR_EXTENDED] = { .type = NLA_U64 },
1280 };
1281
1282 static int
1283 ieee802154_llsec_parse_dev_addr(struct nlattr *nla,
1284                                 struct ieee802154_addr *addr)
1285 {
1286         struct nlattr *attrs[NL802154_DEV_ADDR_ATTR_MAX + 1];
1287
1288         if (!nla || nla_parse_nested(attrs, NL802154_DEV_ADDR_ATTR_MAX, nla,
1289                                      nl802154_dev_addr_policy))
1290                 return -EINVAL;
1291
1292         if (!attrs[NL802154_DEV_ADDR_ATTR_PAN_ID] ||
1293             !attrs[NL802154_DEV_ADDR_ATTR_MODE] ||
1294             !(attrs[NL802154_DEV_ADDR_ATTR_SHORT] ||
1295               attrs[NL802154_DEV_ADDR_ATTR_EXTENDED]))
1296                 return -EINVAL;
1297
1298         addr->pan_id = nla_get_le16(attrs[NL802154_DEV_ADDR_ATTR_PAN_ID]);
1299         addr->mode = nla_get_u32(attrs[NL802154_DEV_ADDR_ATTR_MODE]);
1300         switch (addr->mode) {
1301         case NL802154_DEV_ADDR_SHORT:
1302                 addr->short_addr = nla_get_le16(attrs[NL802154_DEV_ADDR_ATTR_SHORT]);
1303                 break;
1304         case NL802154_DEV_ADDR_EXTENDED:
1305                 addr->extended_addr = nla_get_le64(attrs[NL802154_DEV_ADDR_ATTR_EXTENDED]);
1306                 break;
1307         default:
1308                 return -EINVAL;
1309         }
1310
1311         return 0;
1312 }
1313
1314 static const struct nla_policy nl802154_key_id_policy[NL802154_KEY_ID_ATTR_MAX + 1] = {
1315         [NL802154_KEY_ID_ATTR_MODE] = { .type = NLA_U32 },
1316         [NL802154_KEY_ID_ATTR_INDEX] = { .type = NLA_U8 },
1317         [NL802154_KEY_ID_ATTR_IMPLICIT] = { .type = NLA_NESTED },
1318         [NL802154_KEY_ID_ATTR_SOURCE_SHORT] = { .type = NLA_U32 },
1319         [NL802154_KEY_ID_ATTR_SOURCE_EXTENDED] = { .type = NLA_U64 },
1320 };
1321
1322 static int
1323 ieee802154_llsec_parse_key_id(struct nlattr *nla,
1324                               struct ieee802154_llsec_key_id *desc)
1325 {
1326         struct nlattr *attrs[NL802154_KEY_ID_ATTR_MAX + 1];
1327
1328         if (!nla || nla_parse_nested(attrs, NL802154_KEY_ID_ATTR_MAX, nla,
1329                                      nl802154_key_id_policy))
1330                 return -EINVAL;
1331
1332         if (!attrs[NL802154_KEY_ID_ATTR_MODE])
1333                 return -EINVAL;
1334
1335         desc->mode = nla_get_u32(attrs[NL802154_KEY_ID_ATTR_MODE]);
1336         switch (desc->mode) {
1337         case NL802154_KEY_ID_MODE_IMPLICIT:
1338                 if (!attrs[NL802154_KEY_ID_ATTR_IMPLICIT])
1339                         return -EINVAL;
1340
1341                 if (ieee802154_llsec_parse_dev_addr(attrs[NL802154_KEY_ID_ATTR_IMPLICIT],
1342                                                     &desc->device_addr) < 0)
1343                         return -EINVAL;
1344                 break;
1345         case NL802154_KEY_ID_MODE_INDEX:
1346                 break;
1347         case NL802154_KEY_ID_MODE_INDEX_SHORT:
1348                 if (!attrs[NL802154_KEY_ID_ATTR_SOURCE_SHORT])
1349                         return -EINVAL;
1350
1351                 desc->short_source = nla_get_le32(attrs[NL802154_KEY_ID_ATTR_SOURCE_SHORT]);
1352                 break;
1353         case NL802154_KEY_ID_MODE_INDEX_EXTENDED:
1354                 if (!attrs[NL802154_KEY_ID_ATTR_SOURCE_EXTENDED])
1355                         return -EINVAL;
1356
1357                 desc->extended_source = nla_get_le64(attrs[NL802154_KEY_ID_ATTR_SOURCE_EXTENDED]);
1358                 break;
1359         default:
1360                 return -EINVAL;
1361         }
1362
1363         if (desc->mode != NL802154_KEY_ID_MODE_IMPLICIT) {
1364                 if (!attrs[NL802154_KEY_ID_ATTR_INDEX])
1365                         return -EINVAL;
1366
1367                 /* TODO change id to idx */
1368                 desc->id = nla_get_u8(attrs[NL802154_KEY_ID_ATTR_INDEX]);
1369         }
1370
1371         return 0;
1372 }
1373
1374 static int nl802154_set_llsec_params(struct sk_buff *skb,
1375                                      struct genl_info *info)
1376 {
1377         struct cfg802154_registered_device *rdev = info->user_ptr[0];
1378         struct net_device *dev = info->user_ptr[1];
1379         struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1380         struct ieee802154_llsec_params params;
1381         u32 changed = 0;
1382         int ret;
1383
1384         if (info->attrs[NL802154_ATTR_SEC_ENABLED]) {
1385                 u8 enabled;
1386
1387                 enabled = nla_get_u8(info->attrs[NL802154_ATTR_SEC_ENABLED]);
1388                 if (enabled != 0 && enabled != 1)
1389                         return -EINVAL;
1390
1391                 params.enabled = nla_get_u8(info->attrs[NL802154_ATTR_SEC_ENABLED]);
1392                 changed |= IEEE802154_LLSEC_PARAM_ENABLED;
1393         }
1394
1395         if (info->attrs[NL802154_ATTR_SEC_OUT_KEY_ID]) {
1396                 ret = ieee802154_llsec_parse_key_id(info->attrs[NL802154_ATTR_SEC_OUT_KEY_ID],
1397                                                     &params.out_key);
1398                 if (ret < 0)
1399                         return ret;
1400
1401                 changed |= IEEE802154_LLSEC_PARAM_OUT_KEY;
1402         }
1403
1404         if (info->attrs[NL802154_ATTR_SEC_OUT_LEVEL]) {
1405                 params.out_level = nla_get_u32(info->attrs[NL802154_ATTR_SEC_OUT_LEVEL]);
1406                 if (params.out_level > NL802154_SECLEVEL_MAX)
1407                         return -EINVAL;
1408
1409                 changed |= IEEE802154_LLSEC_PARAM_OUT_LEVEL;
1410         }
1411
1412         if (info->attrs[NL802154_ATTR_SEC_FRAME_COUNTER]) {
1413                 params.frame_counter = nla_get_be32(info->attrs[NL802154_ATTR_SEC_FRAME_COUNTER]);
1414                 changed |= IEEE802154_LLSEC_PARAM_FRAME_COUNTER;
1415         }
1416
1417         return rdev_set_llsec_params(rdev, wpan_dev, &params, changed);
1418 }
1419
1420 static int nl802154_send_key(struct sk_buff *msg, u32 cmd, u32 portid,
1421                              u32 seq, int flags,
1422                              struct cfg802154_registered_device *rdev,
1423                              struct net_device *dev,
1424                              const struct ieee802154_llsec_key_entry *key)
1425 {
1426         void *hdr;
1427         u32 commands[NL802154_CMD_FRAME_NR_IDS / 32];
1428         struct nlattr *nl_key, *nl_key_id;
1429
1430         hdr = nl802154hdr_put(msg, portid, seq, flags, cmd);
1431         if (!hdr)
1432                 return -1;
1433
1434         if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex))
1435                 goto nla_put_failure;
1436
1437         nl_key = nla_nest_start(msg, NL802154_ATTR_SEC_KEY);
1438         if (!nl_key)
1439                 goto nla_put_failure;
1440
1441         nl_key_id = nla_nest_start(msg, NL802154_KEY_ATTR_ID);
1442         if (!nl_key_id)
1443                 goto nla_put_failure;
1444
1445         if (ieee802154_llsec_send_key_id(msg, &key->id) < 0)
1446                 goto nla_put_failure;
1447
1448         nla_nest_end(msg, nl_key_id);
1449
1450         if (nla_put_u8(msg, NL802154_KEY_ATTR_USAGE_FRAMES,
1451                        key->key->frame_types))
1452                 goto nla_put_failure;
1453
1454         if (key->key->frame_types & BIT(NL802154_FRAME_CMD)) {
1455                 /* TODO for each nested */
1456                 memset(commands, 0, sizeof(commands));
1457                 commands[7] = key->key->cmd_frame_ids;
1458                 if (nla_put(msg, NL802154_KEY_ATTR_USAGE_CMDS,
1459                             sizeof(commands), commands))
1460                         goto nla_put_failure;
1461         }
1462
1463         if (nla_put(msg, NL802154_KEY_ATTR_BYTES, NL802154_KEY_SIZE,
1464                     key->key->key))
1465                 goto nla_put_failure;
1466
1467         nla_nest_end(msg, nl_key);
1468         genlmsg_end(msg, hdr);
1469
1470         return 0;
1471
1472 nla_put_failure:
1473         genlmsg_cancel(msg, hdr);
1474         return -EMSGSIZE;
1475 }
1476
1477 static int
1478 nl802154_dump_llsec_key(struct sk_buff *skb, struct netlink_callback *cb)
1479 {
1480         struct cfg802154_registered_device *rdev = NULL;
1481         struct ieee802154_llsec_key_entry *key;
1482         struct ieee802154_llsec_table *table;
1483         struct wpan_dev *wpan_dev;
1484         int err;
1485
1486         err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev);
1487         if (err)
1488                 return err;
1489
1490         if (!wpan_dev->netdev) {
1491                 err = -EINVAL;
1492                 goto out_err;
1493         }
1494
1495         rdev_lock_llsec_table(rdev, wpan_dev);
1496         rdev_get_llsec_table(rdev, wpan_dev, &table);
1497
1498         /* TODO make it like station dump */
1499         if (cb->args[2])
1500                 goto out;
1501
1502         list_for_each_entry(key, &table->keys, list) {
1503                 if (nl802154_send_key(skb, NL802154_CMD_NEW_SEC_KEY,
1504                                       NETLINK_CB(cb->skb).portid,
1505                                       cb->nlh->nlmsg_seq, NLM_F_MULTI,
1506                                       rdev, wpan_dev->netdev, key) < 0) {
1507                         /* TODO */
1508                         err = -EIO;
1509                         rdev_unlock_llsec_table(rdev, wpan_dev);
1510                         goto out_err;
1511                 }
1512         }
1513
1514         cb->args[2] = 1;
1515
1516 out:
1517         rdev_unlock_llsec_table(rdev, wpan_dev);
1518         err = skb->len;
1519 out_err:
1520         nl802154_finish_wpan_dev_dump(rdev);
1521
1522         return err;
1523 }
1524
1525 static const struct nla_policy nl802154_key_policy[NL802154_KEY_ATTR_MAX + 1] = {
1526         [NL802154_KEY_ATTR_ID] = { NLA_NESTED },
1527         /* TODO handle it as for_each_nested and NLA_FLAG? */
1528         [NL802154_KEY_ATTR_USAGE_FRAMES] = { NLA_U8 },
1529         /* TODO handle it as for_each_nested, not static array? */
1530         [NL802154_KEY_ATTR_USAGE_CMDS] = { .len = NL802154_CMD_FRAME_NR_IDS / 8 },
1531         [NL802154_KEY_ATTR_BYTES] = { .len = NL802154_KEY_SIZE },
1532 };
1533
1534 static int nl802154_add_llsec_key(struct sk_buff *skb, struct genl_info *info)
1535 {
1536         struct cfg802154_registered_device *rdev = info->user_ptr[0];
1537         struct net_device *dev = info->user_ptr[1];
1538         struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1539         struct nlattr *attrs[NL802154_KEY_ATTR_MAX + 1];
1540         struct ieee802154_llsec_key key = { };
1541         struct ieee802154_llsec_key_id id = { };
1542         u32 commands[NL802154_CMD_FRAME_NR_IDS / 32] = { };
1543
1544         if (nla_parse_nested(attrs, NL802154_KEY_ATTR_MAX,
1545                              info->attrs[NL802154_ATTR_SEC_KEY],
1546                              nl802154_key_policy))
1547                 return -EINVAL;
1548
1549         if (!attrs[NL802154_KEY_ATTR_USAGE_FRAMES] ||
1550             !attrs[NL802154_KEY_ATTR_BYTES])
1551                 return -EINVAL;
1552
1553         if (ieee802154_llsec_parse_key_id(attrs[NL802154_KEY_ATTR_ID], &id) < 0)
1554                 return -ENOBUFS;
1555
1556         key.frame_types = nla_get_u8(attrs[NL802154_KEY_ATTR_USAGE_FRAMES]);
1557         if (key.frame_types > BIT(NL802154_FRAME_MAX) ||
1558             ((key.frame_types & BIT(NL802154_FRAME_CMD)) &&
1559              !attrs[NL802154_KEY_ATTR_USAGE_CMDS]))
1560                 return -EINVAL;
1561
1562         if (attrs[NL802154_KEY_ATTR_USAGE_CMDS]) {
1563                 /* TODO for each nested */
1564                 nla_memcpy(commands, attrs[NL802154_KEY_ATTR_USAGE_CMDS],
1565                            NL802154_CMD_FRAME_NR_IDS / 8);
1566
1567                 /* TODO understand the -EINVAL logic here? last condition */
1568                 if (commands[0] || commands[1] || commands[2] || commands[3] ||
1569                     commands[4] || commands[5] || commands[6] ||
1570                     commands[7] > BIT(NL802154_CMD_FRAME_MAX))
1571                         return -EINVAL;
1572
1573                 key.cmd_frame_ids = commands[7];
1574         } else {
1575                 key.cmd_frame_ids = 0;
1576         }
1577
1578         nla_memcpy(key.key, attrs[NL802154_KEY_ATTR_BYTES], NL802154_KEY_SIZE);
1579
1580         if (ieee802154_llsec_parse_key_id(attrs[NL802154_KEY_ATTR_ID], &id) < 0)
1581                 return -ENOBUFS;
1582
1583         return rdev_add_llsec_key(rdev, wpan_dev, &id, &key);
1584 }
1585
1586 static int nl802154_del_llsec_key(struct sk_buff *skb, struct genl_info *info)
1587 {
1588         struct cfg802154_registered_device *rdev = info->user_ptr[0];
1589         struct net_device *dev = info->user_ptr[1];
1590         struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1591         struct nlattr *attrs[NL802154_KEY_ATTR_MAX + 1];
1592         struct ieee802154_llsec_key_id id;
1593
1594         if (nla_parse_nested(attrs, NL802154_KEY_ATTR_MAX,
1595                              info->attrs[NL802154_ATTR_SEC_KEY],
1596                              nl802154_key_policy))
1597                 return -EINVAL;
1598
1599         if (ieee802154_llsec_parse_key_id(attrs[NL802154_KEY_ATTR_ID], &id) < 0)
1600                 return -ENOBUFS;
1601
1602         return rdev_del_llsec_key(rdev, wpan_dev, &id);
1603 }
1604
1605 static int nl802154_send_device(struct sk_buff *msg, u32 cmd, u32 portid,
1606                                 u32 seq, int flags,
1607                                 struct cfg802154_registered_device *rdev,
1608                                 struct net_device *dev,
1609                                 const struct ieee802154_llsec_device *dev_desc)
1610 {
1611         void *hdr;
1612         struct nlattr *nl_device;
1613
1614         hdr = nl802154hdr_put(msg, portid, seq, flags, cmd);
1615         if (!hdr)
1616                 return -1;
1617
1618         if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex))
1619                 goto nla_put_failure;
1620
1621         nl_device = nla_nest_start(msg, NL802154_ATTR_SEC_DEVICE);
1622         if (!nl_device)
1623                 goto nla_put_failure;
1624
1625         if (nla_put_u32(msg, NL802154_DEV_ATTR_FRAME_COUNTER,
1626                         dev_desc->frame_counter) ||
1627             nla_put_le16(msg, NL802154_DEV_ATTR_PAN_ID, dev_desc->pan_id) ||
1628             nla_put_le16(msg, NL802154_DEV_ATTR_SHORT_ADDR,
1629                          dev_desc->short_addr) ||
1630             nla_put_le64(msg, NL802154_DEV_ATTR_EXTENDED_ADDR,
1631                          dev_desc->hwaddr, NL802154_DEV_ATTR_PAD) ||
1632             nla_put_u8(msg, NL802154_DEV_ATTR_SECLEVEL_EXEMPT,
1633                        dev_desc->seclevel_exempt) ||
1634             nla_put_u32(msg, NL802154_DEV_ATTR_KEY_MODE, dev_desc->key_mode))
1635                 goto nla_put_failure;
1636
1637         nla_nest_end(msg, nl_device);
1638         genlmsg_end(msg, hdr);
1639
1640         return 0;
1641
1642 nla_put_failure:
1643         genlmsg_cancel(msg, hdr);
1644         return -EMSGSIZE;
1645 }
1646
1647 static int
1648 nl802154_dump_llsec_dev(struct sk_buff *skb, struct netlink_callback *cb)
1649 {
1650         struct cfg802154_registered_device *rdev = NULL;
1651         struct ieee802154_llsec_device *dev;
1652         struct ieee802154_llsec_table *table;
1653         struct wpan_dev *wpan_dev;
1654         int err;
1655
1656         err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev);
1657         if (err)
1658                 return err;
1659
1660         if (!wpan_dev->netdev) {
1661                 err = -EINVAL;
1662                 goto out_err;
1663         }
1664
1665         rdev_lock_llsec_table(rdev, wpan_dev);
1666         rdev_get_llsec_table(rdev, wpan_dev, &table);
1667
1668         /* TODO make it like station dump */
1669         if (cb->args[2])
1670                 goto out;
1671
1672         list_for_each_entry(dev, &table->devices, list) {
1673                 if (nl802154_send_device(skb, NL802154_CMD_NEW_SEC_LEVEL,
1674                                          NETLINK_CB(cb->skb).portid,
1675                                          cb->nlh->nlmsg_seq, NLM_F_MULTI,
1676                                          rdev, wpan_dev->netdev, dev) < 0) {
1677                         /* TODO */
1678                         err = -EIO;
1679                         rdev_unlock_llsec_table(rdev, wpan_dev);
1680                         goto out_err;
1681                 }
1682         }
1683
1684         cb->args[2] = 1;
1685
1686 out:
1687         rdev_unlock_llsec_table(rdev, wpan_dev);
1688         err = skb->len;
1689 out_err:
1690         nl802154_finish_wpan_dev_dump(rdev);
1691
1692         return err;
1693 }
1694
1695 static const struct nla_policy nl802154_dev_policy[NL802154_DEV_ATTR_MAX + 1] = {
1696         [NL802154_DEV_ATTR_FRAME_COUNTER] = { NLA_U32 },
1697         [NL802154_DEV_ATTR_PAN_ID] = { .type = NLA_U16 },
1698         [NL802154_DEV_ATTR_SHORT_ADDR] = { .type = NLA_U16 },
1699         [NL802154_DEV_ATTR_EXTENDED_ADDR] = { .type = NLA_U64 },
1700         [NL802154_DEV_ATTR_SECLEVEL_EXEMPT] = { NLA_U8 },
1701         [NL802154_DEV_ATTR_KEY_MODE] = { NLA_U32 },
1702 };
1703
1704 static int
1705 ieee802154_llsec_parse_device(struct nlattr *nla,
1706                               struct ieee802154_llsec_device *dev)
1707 {
1708         struct nlattr *attrs[NL802154_DEV_ATTR_MAX + 1];
1709
1710         if (!nla || nla_parse_nested(attrs, NL802154_DEV_ATTR_MAX, nla,
1711                                      nl802154_dev_policy))
1712                 return -EINVAL;
1713
1714         memset(dev, 0, sizeof(*dev));
1715
1716         if (!attrs[NL802154_DEV_ATTR_FRAME_COUNTER] ||
1717             !attrs[NL802154_DEV_ATTR_PAN_ID] ||
1718             !attrs[NL802154_DEV_ATTR_SHORT_ADDR] ||
1719             !attrs[NL802154_DEV_ATTR_EXTENDED_ADDR] ||
1720             !attrs[NL802154_DEV_ATTR_SECLEVEL_EXEMPT] ||
1721             !attrs[NL802154_DEV_ATTR_KEY_MODE])
1722                 return -EINVAL;
1723
1724         /* TODO be32 */
1725         dev->frame_counter = nla_get_u32(attrs[NL802154_DEV_ATTR_FRAME_COUNTER]);
1726         dev->pan_id = nla_get_le16(attrs[NL802154_DEV_ATTR_PAN_ID]);
1727         dev->short_addr = nla_get_le16(attrs[NL802154_DEV_ATTR_SHORT_ADDR]);
1728         /* TODO rename hwaddr to extended_addr */
1729         dev->hwaddr = nla_get_le64(attrs[NL802154_DEV_ATTR_EXTENDED_ADDR]);
1730         dev->seclevel_exempt = nla_get_u8(attrs[NL802154_DEV_ATTR_SECLEVEL_EXEMPT]);
1731         dev->key_mode = nla_get_u32(attrs[NL802154_DEV_ATTR_KEY_MODE]);
1732
1733         if (dev->key_mode > NL802154_DEVKEY_MAX ||
1734             (dev->seclevel_exempt != 0 && dev->seclevel_exempt != 1))
1735                 return -EINVAL;
1736
1737         return 0;
1738 }
1739
1740 static int nl802154_add_llsec_dev(struct sk_buff *skb, struct genl_info *info)
1741 {
1742         struct cfg802154_registered_device *rdev = info->user_ptr[0];
1743         struct net_device *dev = info->user_ptr[1];
1744         struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1745         struct ieee802154_llsec_device dev_desc;
1746
1747         if (ieee802154_llsec_parse_device(info->attrs[NL802154_ATTR_SEC_DEVICE],
1748                                           &dev_desc) < 0)
1749                 return -EINVAL;
1750
1751         return rdev_add_device(rdev, wpan_dev, &dev_desc);
1752 }
1753
1754 static int nl802154_del_llsec_dev(struct sk_buff *skb, struct genl_info *info)
1755 {
1756         struct cfg802154_registered_device *rdev = info->user_ptr[0];
1757         struct net_device *dev = info->user_ptr[1];
1758         struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1759         struct nlattr *attrs[NL802154_DEV_ATTR_MAX + 1];
1760         __le64 extended_addr;
1761
1762         if (nla_parse_nested(attrs, NL802154_DEV_ATTR_MAX,
1763                              info->attrs[NL802154_ATTR_SEC_DEVICE],
1764                              nl802154_dev_policy))
1765                 return -EINVAL;
1766
1767         if (!attrs[NL802154_DEV_ATTR_EXTENDED_ADDR])
1768                 return -EINVAL;
1769
1770         extended_addr = nla_get_le64(attrs[NL802154_DEV_ATTR_EXTENDED_ADDR]);
1771         return rdev_del_device(rdev, wpan_dev, extended_addr);
1772 }
1773
1774 static int nl802154_send_devkey(struct sk_buff *msg, u32 cmd, u32 portid,
1775                                 u32 seq, int flags,
1776                                 struct cfg802154_registered_device *rdev,
1777                                 struct net_device *dev, __le64 extended_addr,
1778                                 const struct ieee802154_llsec_device_key *devkey)
1779 {
1780         void *hdr;
1781         struct nlattr *nl_devkey, *nl_key_id;
1782
1783         hdr = nl802154hdr_put(msg, portid, seq, flags, cmd);
1784         if (!hdr)
1785                 return -1;
1786
1787         if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex))
1788                 goto nla_put_failure;
1789
1790         nl_devkey = nla_nest_start(msg, NL802154_ATTR_SEC_DEVKEY);
1791         if (!nl_devkey)
1792                 goto nla_put_failure;
1793
1794         if (nla_put_le64(msg, NL802154_DEVKEY_ATTR_EXTENDED_ADDR,
1795                          extended_addr, NL802154_DEVKEY_ATTR_PAD) ||
1796             nla_put_u32(msg, NL802154_DEVKEY_ATTR_FRAME_COUNTER,
1797                         devkey->frame_counter))
1798                 goto nla_put_failure;
1799
1800         nl_key_id = nla_nest_start(msg, NL802154_DEVKEY_ATTR_ID);
1801         if (!nl_key_id)
1802                 goto nla_put_failure;
1803
1804         if (ieee802154_llsec_send_key_id(msg, &devkey->key_id) < 0)
1805                 goto nla_put_failure;
1806
1807         nla_nest_end(msg, nl_key_id);
1808         nla_nest_end(msg, nl_devkey);
1809         genlmsg_end(msg, hdr);
1810
1811         return 0;
1812
1813 nla_put_failure:
1814         genlmsg_cancel(msg, hdr);
1815         return -EMSGSIZE;
1816 }
1817
1818 static int
1819 nl802154_dump_llsec_devkey(struct sk_buff *skb, struct netlink_callback *cb)
1820 {
1821         struct cfg802154_registered_device *rdev = NULL;
1822         struct ieee802154_llsec_device_key *kpos;
1823         struct ieee802154_llsec_device *dpos;
1824         struct ieee802154_llsec_table *table;
1825         struct wpan_dev *wpan_dev;
1826         int err;
1827
1828         err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev);
1829         if (err)
1830                 return err;
1831
1832         if (!wpan_dev->netdev) {
1833                 err = -EINVAL;
1834                 goto out_err;
1835         }
1836
1837         rdev_lock_llsec_table(rdev, wpan_dev);
1838         rdev_get_llsec_table(rdev, wpan_dev, &table);
1839
1840         /* TODO make it like station dump */
1841         if (cb->args[2])
1842                 goto out;
1843
1844         /* TODO look if remove devkey and do some nested attribute */
1845         list_for_each_entry(dpos, &table->devices, list) {
1846                 list_for_each_entry(kpos, &dpos->keys, list) {
1847                         if (nl802154_send_devkey(skb,
1848                                                  NL802154_CMD_NEW_SEC_LEVEL,
1849                                                  NETLINK_CB(cb->skb).portid,
1850                                                  cb->nlh->nlmsg_seq,
1851                                                  NLM_F_MULTI, rdev,
1852                                                  wpan_dev->netdev,
1853                                                  dpos->hwaddr,
1854                                                  kpos) < 0) {
1855                                 /* TODO */
1856                                 err = -EIO;
1857                                 rdev_unlock_llsec_table(rdev, wpan_dev);
1858                                 goto out_err;
1859                         }
1860                 }
1861         }
1862
1863         cb->args[2] = 1;
1864
1865 out:
1866         rdev_unlock_llsec_table(rdev, wpan_dev);
1867         err = skb->len;
1868 out_err:
1869         nl802154_finish_wpan_dev_dump(rdev);
1870
1871         return err;
1872 }
1873
1874 static const struct nla_policy nl802154_devkey_policy[NL802154_DEVKEY_ATTR_MAX + 1] = {
1875         [NL802154_DEVKEY_ATTR_FRAME_COUNTER] = { NLA_U32 },
1876         [NL802154_DEVKEY_ATTR_EXTENDED_ADDR] = { NLA_U64 },
1877         [NL802154_DEVKEY_ATTR_ID] = { NLA_NESTED },
1878 };
1879
1880 static int nl802154_add_llsec_devkey(struct sk_buff *skb, struct genl_info *info)
1881 {
1882         struct cfg802154_registered_device *rdev = info->user_ptr[0];
1883         struct net_device *dev = info->user_ptr[1];
1884         struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1885         struct nlattr *attrs[NL802154_DEVKEY_ATTR_MAX + 1];
1886         struct ieee802154_llsec_device_key key;
1887         __le64 extended_addr;
1888
1889         if (!info->attrs[NL802154_ATTR_SEC_DEVKEY] ||
1890             nla_parse_nested(attrs, NL802154_DEVKEY_ATTR_MAX,
1891                              info->attrs[NL802154_ATTR_SEC_DEVKEY],
1892                              nl802154_devkey_policy) < 0)
1893                 return -EINVAL;
1894
1895         if (!attrs[NL802154_DEVKEY_ATTR_FRAME_COUNTER] ||
1896             !attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR])
1897                 return -EINVAL;
1898
1899         /* TODO change key.id ? */
1900         if (ieee802154_llsec_parse_key_id(attrs[NL802154_DEVKEY_ATTR_ID],
1901                                           &key.key_id) < 0)
1902                 return -ENOBUFS;
1903
1904         /* TODO be32 */
1905         key.frame_counter = nla_get_u32(attrs[NL802154_DEVKEY_ATTR_FRAME_COUNTER]);
1906         /* TODO change naming hwaddr -> extended_addr
1907          * check unique identifier short+pan OR extended_addr
1908          */
1909         extended_addr = nla_get_le64(attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR]);
1910         return rdev_add_devkey(rdev, wpan_dev, extended_addr, &key);
1911 }
1912
1913 static int nl802154_del_llsec_devkey(struct sk_buff *skb, struct genl_info *info)
1914 {
1915         struct cfg802154_registered_device *rdev = info->user_ptr[0];
1916         struct net_device *dev = info->user_ptr[1];
1917         struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1918         struct nlattr *attrs[NL802154_DEVKEY_ATTR_MAX + 1];
1919         struct ieee802154_llsec_device_key key;
1920         __le64 extended_addr;
1921
1922         if (nla_parse_nested(attrs, NL802154_DEVKEY_ATTR_MAX,
1923                              info->attrs[NL802154_ATTR_SEC_DEVKEY],
1924                              nl802154_devkey_policy))
1925                 return -EINVAL;
1926
1927         if (!attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR])
1928                 return -EINVAL;
1929
1930         /* TODO change key.id ? */
1931         if (ieee802154_llsec_parse_key_id(attrs[NL802154_DEVKEY_ATTR_ID],
1932                                           &key.key_id) < 0)
1933                 return -ENOBUFS;
1934
1935         /* TODO change naming hwaddr -> extended_addr
1936          * check unique identifier short+pan OR extended_addr
1937          */
1938         extended_addr = nla_get_le64(attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR]);
1939         return rdev_del_devkey(rdev, wpan_dev, extended_addr, &key);
1940 }
1941
1942 static int nl802154_send_seclevel(struct sk_buff *msg, u32 cmd, u32 portid,
1943                                   u32 seq, int flags,
1944                                   struct cfg802154_registered_device *rdev,
1945                                   struct net_device *dev,
1946                                   const struct ieee802154_llsec_seclevel *sl)
1947 {
1948         void *hdr;
1949         struct nlattr *nl_seclevel;
1950
1951         hdr = nl802154hdr_put(msg, portid, seq, flags, cmd);
1952         if (!hdr)
1953                 return -1;
1954
1955         if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex))
1956                 goto nla_put_failure;
1957
1958         nl_seclevel = nla_nest_start(msg, NL802154_ATTR_SEC_LEVEL);
1959         if (!nl_seclevel)
1960                 goto nla_put_failure;
1961
1962         if (nla_put_u32(msg, NL802154_SECLEVEL_ATTR_FRAME, sl->frame_type) ||
1963             nla_put_u32(msg, NL802154_SECLEVEL_ATTR_LEVELS, sl->sec_levels) ||
1964             nla_put_u8(msg, NL802154_SECLEVEL_ATTR_DEV_OVERRIDE,
1965                        sl->device_override))
1966                 goto nla_put_failure;
1967
1968         if (sl->frame_type == NL802154_FRAME_CMD) {
1969                 if (nla_put_u32(msg, NL802154_SECLEVEL_ATTR_CMD_FRAME,
1970                                 sl->cmd_frame_id))
1971                         goto nla_put_failure;
1972         }
1973
1974         nla_nest_end(msg, nl_seclevel);
1975         genlmsg_end(msg, hdr);
1976
1977         return 0;
1978
1979 nla_put_failure:
1980         genlmsg_cancel(msg, hdr);
1981         return -EMSGSIZE;
1982 }
1983
1984 static int
1985 nl802154_dump_llsec_seclevel(struct sk_buff *skb, struct netlink_callback *cb)
1986 {
1987         struct cfg802154_registered_device *rdev = NULL;
1988         struct ieee802154_llsec_seclevel *sl;
1989         struct ieee802154_llsec_table *table;
1990         struct wpan_dev *wpan_dev;
1991         int err;
1992
1993         err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev);
1994         if (err)
1995                 return err;
1996
1997         if (!wpan_dev->netdev) {
1998                 err = -EINVAL;
1999                 goto out_err;
2000         }
2001
2002         rdev_lock_llsec_table(rdev, wpan_dev);
2003         rdev_get_llsec_table(rdev, wpan_dev, &table);
2004
2005         /* TODO make it like station dump */
2006         if (cb->args[2])
2007                 goto out;
2008
2009         list_for_each_entry(sl, &table->security_levels, list) {
2010                 if (nl802154_send_seclevel(skb, NL802154_CMD_NEW_SEC_LEVEL,
2011                                            NETLINK_CB(cb->skb).portid,
2012                                            cb->nlh->nlmsg_seq, NLM_F_MULTI,
2013                                            rdev, wpan_dev->netdev, sl) < 0) {
2014                         /* TODO */
2015                         err = -EIO;
2016                         rdev_unlock_llsec_table(rdev, wpan_dev);
2017                         goto out_err;
2018                 }
2019         }
2020
2021         cb->args[2] = 1;
2022
2023 out:
2024         rdev_unlock_llsec_table(rdev, wpan_dev);
2025         err = skb->len;
2026 out_err:
2027         nl802154_finish_wpan_dev_dump(rdev);
2028
2029         return err;
2030 }
2031
2032 static const struct nla_policy nl802154_seclevel_policy[NL802154_SECLEVEL_ATTR_MAX + 1] = {
2033         [NL802154_SECLEVEL_ATTR_LEVELS] = { .type = NLA_U8 },
2034         [NL802154_SECLEVEL_ATTR_FRAME] = { .type = NLA_U32 },
2035         [NL802154_SECLEVEL_ATTR_CMD_FRAME] = { .type = NLA_U32 },
2036         [NL802154_SECLEVEL_ATTR_DEV_OVERRIDE] = { .type = NLA_U8 },
2037 };
2038
2039 static int
2040 llsec_parse_seclevel(struct nlattr *nla, struct ieee802154_llsec_seclevel *sl)
2041 {
2042         struct nlattr *attrs[NL802154_SECLEVEL_ATTR_MAX + 1];
2043
2044         if (!nla || nla_parse_nested(attrs, NL802154_SECLEVEL_ATTR_MAX, nla,
2045                                      nl802154_seclevel_policy))
2046                 return -EINVAL;
2047
2048         memset(sl, 0, sizeof(*sl));
2049
2050         if (!attrs[NL802154_SECLEVEL_ATTR_LEVELS] ||
2051             !attrs[NL802154_SECLEVEL_ATTR_FRAME] ||
2052             !attrs[NL802154_SECLEVEL_ATTR_DEV_OVERRIDE])
2053                 return -EINVAL;
2054
2055         sl->sec_levels = nla_get_u8(attrs[NL802154_SECLEVEL_ATTR_LEVELS]);
2056         sl->frame_type = nla_get_u32(attrs[NL802154_SECLEVEL_ATTR_FRAME]);
2057         sl->device_override = nla_get_u8(attrs[NL802154_SECLEVEL_ATTR_DEV_OVERRIDE]);
2058         if (sl->frame_type > NL802154_FRAME_MAX ||
2059             (sl->device_override != 0 && sl->device_override != 1))
2060                 return -EINVAL;
2061
2062         if (sl->frame_type == NL802154_FRAME_CMD) {
2063                 if (!attrs[NL802154_SECLEVEL_ATTR_CMD_FRAME])
2064                         return -EINVAL;
2065
2066                 sl->cmd_frame_id = nla_get_u32(attrs[NL802154_SECLEVEL_ATTR_CMD_FRAME]);
2067                 if (sl->cmd_frame_id > NL802154_CMD_FRAME_MAX)
2068                         return -EINVAL;
2069         }
2070
2071         return 0;
2072 }
2073
2074 static int nl802154_add_llsec_seclevel(struct sk_buff *skb,
2075                                        struct genl_info *info)
2076 {
2077         struct cfg802154_registered_device *rdev = info->user_ptr[0];
2078         struct net_device *dev = info->user_ptr[1];
2079         struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
2080         struct ieee802154_llsec_seclevel sl;
2081
2082         if (llsec_parse_seclevel(info->attrs[NL802154_ATTR_SEC_LEVEL],
2083                                  &sl) < 0)
2084                 return -EINVAL;
2085
2086         return rdev_add_seclevel(rdev, wpan_dev, &sl);
2087 }
2088
2089 static int nl802154_del_llsec_seclevel(struct sk_buff *skb,
2090                                        struct genl_info *info)
2091 {
2092         struct cfg802154_registered_device *rdev = info->user_ptr[0];
2093         struct net_device *dev = info->user_ptr[1];
2094         struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
2095         struct ieee802154_llsec_seclevel sl;
2096
2097         if (!info->attrs[NL802154_ATTR_SEC_LEVEL] ||
2098             llsec_parse_seclevel(info->attrs[NL802154_ATTR_SEC_LEVEL],
2099                                  &sl) < 0)
2100                 return -EINVAL;
2101
2102         return rdev_del_seclevel(rdev, wpan_dev, &sl);
2103 }
2104 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
2105
2106 #define NL802154_FLAG_NEED_WPAN_PHY     0x01
2107 #define NL802154_FLAG_NEED_NETDEV       0x02
2108 #define NL802154_FLAG_NEED_RTNL         0x04
2109 #define NL802154_FLAG_CHECK_NETDEV_UP   0x08
2110 #define NL802154_FLAG_NEED_NETDEV_UP    (NL802154_FLAG_NEED_NETDEV |\
2111                                          NL802154_FLAG_CHECK_NETDEV_UP)
2112 #define NL802154_FLAG_NEED_WPAN_DEV     0x10
2113 #define NL802154_FLAG_NEED_WPAN_DEV_UP  (NL802154_FLAG_NEED_WPAN_DEV |\
2114                                          NL802154_FLAG_CHECK_NETDEV_UP)
2115
2116 static int nl802154_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
2117                              struct genl_info *info)
2118 {
2119         struct cfg802154_registered_device *rdev;
2120         struct wpan_dev *wpan_dev;
2121         struct net_device *dev;
2122         bool rtnl = ops->internal_flags & NL802154_FLAG_NEED_RTNL;
2123
2124         if (rtnl)
2125                 rtnl_lock();
2126
2127         if (ops->internal_flags & NL802154_FLAG_NEED_WPAN_PHY) {
2128                 rdev = cfg802154_get_dev_from_info(genl_info_net(info), info);
2129                 if (IS_ERR(rdev)) {
2130                         if (rtnl)
2131                                 rtnl_unlock();
2132                         return PTR_ERR(rdev);
2133                 }
2134                 info->user_ptr[0] = rdev;
2135         } else if (ops->internal_flags & NL802154_FLAG_NEED_NETDEV ||
2136                    ops->internal_flags & NL802154_FLAG_NEED_WPAN_DEV) {
2137                 ASSERT_RTNL();
2138                 wpan_dev = __cfg802154_wpan_dev_from_attrs(genl_info_net(info),
2139                                                            info->attrs);
2140                 if (IS_ERR(wpan_dev)) {
2141                         if (rtnl)
2142                                 rtnl_unlock();
2143                         return PTR_ERR(wpan_dev);
2144                 }
2145
2146                 dev = wpan_dev->netdev;
2147                 rdev = wpan_phy_to_rdev(wpan_dev->wpan_phy);
2148
2149                 if (ops->internal_flags & NL802154_FLAG_NEED_NETDEV) {
2150                         if (!dev) {
2151                                 if (rtnl)
2152                                         rtnl_unlock();
2153                                 return -EINVAL;
2154                         }
2155
2156                         info->user_ptr[1] = dev;
2157                 } else {
2158                         info->user_ptr[1] = wpan_dev;
2159                 }
2160
2161                 if (dev) {
2162                         if (ops->internal_flags & NL802154_FLAG_CHECK_NETDEV_UP &&
2163                             !netif_running(dev)) {
2164                                 if (rtnl)
2165                                         rtnl_unlock();
2166                                 return -ENETDOWN;
2167                         }
2168
2169                         dev_hold(dev);
2170                 }
2171
2172                 info->user_ptr[0] = rdev;
2173         }
2174
2175         return 0;
2176 }
2177
2178 static void nl802154_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
2179                                struct genl_info *info)
2180 {
2181         if (info->user_ptr[1]) {
2182                 if (ops->internal_flags & NL802154_FLAG_NEED_WPAN_DEV) {
2183                         struct wpan_dev *wpan_dev = info->user_ptr[1];
2184
2185                         if (wpan_dev->netdev)
2186                                 dev_put(wpan_dev->netdev);
2187                 } else {
2188                         dev_put(info->user_ptr[1]);
2189                 }
2190         }
2191
2192         if (ops->internal_flags & NL802154_FLAG_NEED_RTNL)
2193                 rtnl_unlock();
2194 }
2195
2196 static const struct genl_ops nl802154_ops[] = {
2197         {
2198                 .cmd = NL802154_CMD_GET_WPAN_PHY,
2199                 .doit = nl802154_get_wpan_phy,
2200                 .dumpit = nl802154_dump_wpan_phy,
2201                 .done = nl802154_dump_wpan_phy_done,
2202                 .policy = nl802154_policy,
2203                 /* can be retrieved by unprivileged users */
2204                 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
2205                                   NL802154_FLAG_NEED_RTNL,
2206         },
2207         {
2208                 .cmd = NL802154_CMD_GET_INTERFACE,
2209                 .doit = nl802154_get_interface,
2210                 .dumpit = nl802154_dump_interface,
2211                 .policy = nl802154_policy,
2212                 /* can be retrieved by unprivileged users */
2213                 .internal_flags = NL802154_FLAG_NEED_WPAN_DEV |
2214                                   NL802154_FLAG_NEED_RTNL,
2215         },
2216         {
2217                 .cmd = NL802154_CMD_NEW_INTERFACE,
2218                 .doit = nl802154_new_interface,
2219                 .policy = nl802154_policy,
2220                 .flags = GENL_ADMIN_PERM,
2221                 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
2222                                   NL802154_FLAG_NEED_RTNL,
2223         },
2224         {
2225                 .cmd = NL802154_CMD_DEL_INTERFACE,
2226                 .doit = nl802154_del_interface,
2227                 .policy = nl802154_policy,
2228                 .flags = GENL_ADMIN_PERM,
2229                 .internal_flags = NL802154_FLAG_NEED_WPAN_DEV |
2230                                   NL802154_FLAG_NEED_RTNL,
2231         },
2232         {
2233                 .cmd = NL802154_CMD_SET_CHANNEL,
2234                 .doit = nl802154_set_channel,
2235                 .policy = nl802154_policy,
2236                 .flags = GENL_ADMIN_PERM,
2237                 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
2238                                   NL802154_FLAG_NEED_RTNL,
2239         },
2240         {
2241                 .cmd = NL802154_CMD_SET_CCA_MODE,
2242                 .doit = nl802154_set_cca_mode,
2243                 .policy = nl802154_policy,
2244                 .flags = GENL_ADMIN_PERM,
2245                 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
2246                                   NL802154_FLAG_NEED_RTNL,
2247         },
2248         {
2249                 .cmd = NL802154_CMD_SET_CCA_ED_LEVEL,
2250                 .doit = nl802154_set_cca_ed_level,
2251                 .policy = nl802154_policy,
2252                 .flags = GENL_ADMIN_PERM,
2253                 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
2254                                   NL802154_FLAG_NEED_RTNL,
2255         },
2256         {
2257                 .cmd = NL802154_CMD_SET_TX_POWER,
2258                 .doit = nl802154_set_tx_power,
2259                 .policy = nl802154_policy,
2260                 .flags = GENL_ADMIN_PERM,
2261                 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
2262                                   NL802154_FLAG_NEED_RTNL,
2263         },
2264         {
2265                 .cmd = NL802154_CMD_SET_PAN_ID,
2266                 .doit = nl802154_set_pan_id,
2267                 .policy = nl802154_policy,
2268                 .flags = GENL_ADMIN_PERM,
2269                 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2270                                   NL802154_FLAG_NEED_RTNL,
2271         },
2272         {
2273                 .cmd = NL802154_CMD_SET_SHORT_ADDR,
2274                 .doit = nl802154_set_short_addr,
2275                 .policy = nl802154_policy,
2276                 .flags = GENL_ADMIN_PERM,
2277                 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2278                                   NL802154_FLAG_NEED_RTNL,
2279         },
2280         {
2281                 .cmd = NL802154_CMD_SET_BACKOFF_EXPONENT,
2282                 .doit = nl802154_set_backoff_exponent,
2283                 .policy = nl802154_policy,
2284                 .flags = GENL_ADMIN_PERM,
2285                 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2286                                   NL802154_FLAG_NEED_RTNL,
2287         },
2288         {
2289                 .cmd = NL802154_CMD_SET_MAX_CSMA_BACKOFFS,
2290                 .doit = nl802154_set_max_csma_backoffs,
2291                 .policy = nl802154_policy,
2292                 .flags = GENL_ADMIN_PERM,
2293                 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2294                                   NL802154_FLAG_NEED_RTNL,
2295         },
2296         {
2297                 .cmd = NL802154_CMD_SET_MAX_FRAME_RETRIES,
2298                 .doit = nl802154_set_max_frame_retries,
2299                 .policy = nl802154_policy,
2300                 .flags = GENL_ADMIN_PERM,
2301                 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2302                                   NL802154_FLAG_NEED_RTNL,
2303         },
2304         {
2305                 .cmd = NL802154_CMD_SET_LBT_MODE,
2306                 .doit = nl802154_set_lbt_mode,
2307                 .policy = nl802154_policy,
2308                 .flags = GENL_ADMIN_PERM,
2309                 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2310                                   NL802154_FLAG_NEED_RTNL,
2311         },
2312         {
2313                 .cmd = NL802154_CMD_SET_ACKREQ_DEFAULT,
2314                 .doit = nl802154_set_ackreq_default,
2315                 .policy = nl802154_policy,
2316                 .flags = GENL_ADMIN_PERM,
2317                 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2318                                   NL802154_FLAG_NEED_RTNL,
2319         },
2320 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
2321         {
2322                 .cmd = NL802154_CMD_SET_SEC_PARAMS,
2323                 .doit = nl802154_set_llsec_params,
2324                 .policy = nl802154_policy,
2325                 .flags = GENL_ADMIN_PERM,
2326                 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2327                                   NL802154_FLAG_NEED_RTNL,
2328         },
2329         {
2330                 .cmd = NL802154_CMD_GET_SEC_KEY,
2331                 /* TODO .doit by matching key id? */
2332                 .dumpit = nl802154_dump_llsec_key,
2333                 .policy = nl802154_policy,
2334                 .flags = GENL_ADMIN_PERM,
2335                 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2336                                   NL802154_FLAG_NEED_RTNL,
2337         },
2338         {
2339                 .cmd = NL802154_CMD_NEW_SEC_KEY,
2340                 .doit = nl802154_add_llsec_key,
2341                 .policy = nl802154_policy,
2342                 .flags = GENL_ADMIN_PERM,
2343                 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2344                                   NL802154_FLAG_NEED_RTNL,
2345         },
2346         {
2347                 .cmd = NL802154_CMD_DEL_SEC_KEY,
2348                 .doit = nl802154_del_llsec_key,
2349                 .policy = nl802154_policy,
2350                 .flags = GENL_ADMIN_PERM,
2351                 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2352                                   NL802154_FLAG_NEED_RTNL,
2353         },
2354         /* TODO unique identifier must short+pan OR extended_addr */
2355         {
2356                 .cmd = NL802154_CMD_GET_SEC_DEV,
2357                 /* TODO .doit by matching extended_addr? */
2358                 .dumpit = nl802154_dump_llsec_dev,
2359                 .policy = nl802154_policy,
2360                 .flags = GENL_ADMIN_PERM,
2361                 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2362                                   NL802154_FLAG_NEED_RTNL,
2363         },
2364         {
2365                 .cmd = NL802154_CMD_NEW_SEC_DEV,
2366                 .doit = nl802154_add_llsec_dev,
2367                 .policy = nl802154_policy,
2368                 .flags = GENL_ADMIN_PERM,
2369                 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2370                                   NL802154_FLAG_NEED_RTNL,
2371         },
2372         {
2373                 .cmd = NL802154_CMD_DEL_SEC_DEV,
2374                 .doit = nl802154_del_llsec_dev,
2375                 .policy = nl802154_policy,
2376                 .flags = GENL_ADMIN_PERM,
2377                 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2378                                   NL802154_FLAG_NEED_RTNL,
2379         },
2380         /* TODO remove complete devkey, put it as nested? */
2381         {
2382                 .cmd = NL802154_CMD_GET_SEC_DEVKEY,
2383                 /* TODO doit by matching ??? */
2384                 .dumpit = nl802154_dump_llsec_devkey,
2385                 .policy = nl802154_policy,
2386                 .flags = GENL_ADMIN_PERM,
2387                 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2388                                   NL802154_FLAG_NEED_RTNL,
2389         },
2390         {
2391                 .cmd = NL802154_CMD_NEW_SEC_DEVKEY,
2392                 .doit = nl802154_add_llsec_devkey,
2393                 .policy = nl802154_policy,
2394                 .flags = GENL_ADMIN_PERM,
2395                 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2396                                   NL802154_FLAG_NEED_RTNL,
2397         },
2398         {
2399                 .cmd = NL802154_CMD_DEL_SEC_DEVKEY,
2400                 .doit = nl802154_del_llsec_devkey,
2401                 .policy = nl802154_policy,
2402                 .flags = GENL_ADMIN_PERM,
2403                 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2404                                   NL802154_FLAG_NEED_RTNL,
2405         },
2406         {
2407                 .cmd = NL802154_CMD_GET_SEC_LEVEL,
2408                 /* TODO .doit by matching frame_type? */
2409                 .dumpit = nl802154_dump_llsec_seclevel,
2410                 .policy = nl802154_policy,
2411                 .flags = GENL_ADMIN_PERM,
2412                 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2413                                   NL802154_FLAG_NEED_RTNL,
2414         },
2415         {
2416                 .cmd = NL802154_CMD_NEW_SEC_LEVEL,
2417                 .doit = nl802154_add_llsec_seclevel,
2418                 .policy = nl802154_policy,
2419                 .flags = GENL_ADMIN_PERM,
2420                 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2421                                   NL802154_FLAG_NEED_RTNL,
2422         },
2423         {
2424                 .cmd = NL802154_CMD_DEL_SEC_LEVEL,
2425                 /* TODO match frame_type only? */
2426                 .doit = nl802154_del_llsec_seclevel,
2427                 .policy = nl802154_policy,
2428                 .flags = GENL_ADMIN_PERM,
2429                 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2430                                   NL802154_FLAG_NEED_RTNL,
2431         },
2432 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
2433 };
2434
2435 /* initialisation/exit functions */
2436 int nl802154_init(void)
2437 {
2438         return genl_register_family_with_ops_groups(&nl802154_fam, nl802154_ops,
2439                                                     nl802154_mcgrps);
2440 }
2441
2442 void nl802154_exit(void)
2443 {
2444         genl_unregister_family(&nl802154_fam);
2445 }