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 if (wpan_phy_net(&rdev->wpan_phy) != netns) 84 continue; 85 86 if (have_wpan_dev_id && rdev->wpan_phy_idx != wpan_phy_idx) 87 continue; 88 89 list_for_each_entry(wpan_dev, &rdev->wpan_dev_list, list) { 90 if (have_ifidx && wpan_dev->netdev && 91 wpan_dev->netdev->ifindex == ifidx) { 92 result = wpan_dev; 93 break; 94 } 95 if (have_wpan_dev_id && 96 wpan_dev->identifier == (u32)wpan_dev_id) { 97 result = wpan_dev; 98 break; 99 } 100 } 101 102 if (result) 103 break; 104 } 105 106 if (result) 107 return result; 108 109 return ERR_PTR(-ENODEV); 110 } 111 112 static struct cfg802154_registered_device * 113 __cfg802154_rdev_from_attrs(struct net *netns, struct nlattr **attrs) 114 { 115 struct cfg802154_registered_device *rdev = NULL, *tmp; 116 struct net_device *netdev; 117 118 ASSERT_RTNL(); 119 120 if (!attrs[NL802154_ATTR_WPAN_PHY] && 121 !attrs[NL802154_ATTR_IFINDEX] && 122 !attrs[NL802154_ATTR_WPAN_DEV]) 123 return ERR_PTR(-EINVAL); 124 125 if (attrs[NL802154_ATTR_WPAN_PHY]) 126 rdev = cfg802154_rdev_by_wpan_phy_idx( 127 nla_get_u32(attrs[NL802154_ATTR_WPAN_PHY])); 128 129 if (attrs[NL802154_ATTR_WPAN_DEV]) { 130 u64 wpan_dev_id = nla_get_u64(attrs[NL802154_ATTR_WPAN_DEV]); 131 struct wpan_dev *wpan_dev; 132 bool found = false; 133 134 tmp = cfg802154_rdev_by_wpan_phy_idx(wpan_dev_id >> 32); 135 if (tmp) { 136 /* make sure wpan_dev exists */ 137 list_for_each_entry(wpan_dev, &tmp->wpan_dev_list, list) { 138 if (wpan_dev->identifier != (u32)wpan_dev_id) 139 continue; 140 found = true; 141 break; 142 } 143 144 if (!found) 145 tmp = NULL; 146 147 if (rdev && tmp != rdev) 148 return ERR_PTR(-EINVAL); 149 rdev = tmp; 150 } 151 } 152 153 if (attrs[NL802154_ATTR_IFINDEX]) { 154 int ifindex = nla_get_u32(attrs[NL802154_ATTR_IFINDEX]); 155 156 netdev = __dev_get_by_index(netns, ifindex); 157 if (netdev) { 158 if (netdev->ieee802154_ptr) 159 tmp = wpan_phy_to_rdev( 160 netdev->ieee802154_ptr->wpan_phy); 161 else 162 tmp = NULL; 163 164 /* not wireless device -- return error */ 165 if (!tmp) 166 return ERR_PTR(-EINVAL); 167 168 /* mismatch -- return error */ 169 if (rdev && tmp != rdev) 170 return ERR_PTR(-EINVAL); 171 172 rdev = tmp; 173 } 174 } 175 176 if (!rdev) 177 return ERR_PTR(-ENODEV); 178 179 if (netns != wpan_phy_net(&rdev->wpan_phy)) 180 return ERR_PTR(-ENODEV); 181 182 return rdev; 183 } 184 185 /* This function returns a pointer to the driver 186 * that the genl_info item that is passed refers to. 187 * 188 * The result of this can be a PTR_ERR and hence must 189 * be checked with IS_ERR() for errors. 190 */ 191 static struct cfg802154_registered_device * 192 cfg802154_get_dev_from_info(struct net *netns, struct genl_info *info) 193 { 194 return __cfg802154_rdev_from_attrs(netns, info->attrs); 195 } 196 197 /* policy for the attributes */ 198 static const struct nla_policy nl802154_policy[NL802154_ATTR_MAX+1] = { 199 [NL802154_ATTR_WPAN_PHY] = { .type = NLA_U32 }, 200 [NL802154_ATTR_WPAN_PHY_NAME] = { .type = NLA_NUL_STRING, 201 .len = 20-1 }, 202 203 [NL802154_ATTR_IFINDEX] = { .type = NLA_U32 }, 204 [NL802154_ATTR_IFTYPE] = { .type = NLA_U32 }, 205 [NL802154_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 }, 206 207 [NL802154_ATTR_WPAN_DEV] = { .type = NLA_U64 }, 208 209 [NL802154_ATTR_PAGE] = { .type = NLA_U8, }, 210 [NL802154_ATTR_CHANNEL] = { .type = NLA_U8, }, 211 212 [NL802154_ATTR_TX_POWER] = { .type = NLA_S32, }, 213 214 [NL802154_ATTR_CCA_MODE] = { .type = NLA_U32, }, 215 [NL802154_ATTR_CCA_OPT] = { .type = NLA_U32, }, 216 [NL802154_ATTR_CCA_ED_LEVEL] = { .type = NLA_S32, }, 217 218 [NL802154_ATTR_SUPPORTED_CHANNEL] = { .type = NLA_U32, }, 219 220 [NL802154_ATTR_PAN_ID] = { .type = NLA_U16, }, 221 [NL802154_ATTR_EXTENDED_ADDR] = { .type = NLA_U64 }, 222 [NL802154_ATTR_SHORT_ADDR] = { .type = NLA_U16, }, 223 224 [NL802154_ATTR_MIN_BE] = { .type = NLA_U8, }, 225 [NL802154_ATTR_MAX_BE] = { .type = NLA_U8, }, 226 [NL802154_ATTR_MAX_CSMA_BACKOFFS] = { .type = NLA_U8, }, 227 228 [NL802154_ATTR_MAX_FRAME_RETRIES] = { .type = NLA_S8, }, 229 230 [NL802154_ATTR_LBT_MODE] = { .type = NLA_U8, }, 231 232 [NL802154_ATTR_WPAN_PHY_CAPS] = { .type = NLA_NESTED }, 233 234 [NL802154_ATTR_SUPPORTED_COMMANDS] = { .type = NLA_NESTED }, 235 236 [NL802154_ATTR_ACKREQ_DEFAULT] = { .type = NLA_U8 }, 237 238 [NL802154_ATTR_PID] = { .type = NLA_U32 }, 239 [NL802154_ATTR_NETNS_FD] = { .type = NLA_U32 }, 240 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL 241 [NL802154_ATTR_SEC_ENABLED] = { .type = NLA_U8, }, 242 [NL802154_ATTR_SEC_OUT_LEVEL] = { .type = NLA_U32, }, 243 [NL802154_ATTR_SEC_OUT_KEY_ID] = { .type = NLA_NESTED, }, 244 [NL802154_ATTR_SEC_FRAME_COUNTER] = { .type = NLA_U32 }, 245 246 [NL802154_ATTR_SEC_LEVEL] = { .type = NLA_NESTED }, 247 [NL802154_ATTR_SEC_DEVICE] = { .type = NLA_NESTED }, 248 [NL802154_ATTR_SEC_DEVKEY] = { .type = NLA_NESTED }, 249 [NL802154_ATTR_SEC_KEY] = { .type = NLA_NESTED }, 250 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */ 251 }; 252 253 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL 254 static int 255 nl802154_prepare_wpan_dev_dump(struct sk_buff *skb, 256 struct netlink_callback *cb, 257 struct cfg802154_registered_device **rdev, 258 struct wpan_dev **wpan_dev) 259 { 260 int err; 261 262 rtnl_lock(); 263 264 if (!cb->args[0]) { 265 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl802154_fam.hdrsize, 266 nl802154_fam.attrbuf, nl802154_fam.maxattr, 267 nl802154_policy); 268 if (err) 269 goto out_unlock; 270 271 *wpan_dev = __cfg802154_wpan_dev_from_attrs(sock_net(skb->sk), 272 nl802154_fam.attrbuf); 273 if (IS_ERR(*wpan_dev)) { 274 err = PTR_ERR(*wpan_dev); 275 goto out_unlock; 276 } 277 *rdev = wpan_phy_to_rdev((*wpan_dev)->wpan_phy); 278 /* 0 is the first index - add 1 to parse only once */ 279 cb->args[0] = (*rdev)->wpan_phy_idx + 1; 280 cb->args[1] = (*wpan_dev)->identifier; 281 } else { 282 /* subtract the 1 again here */ 283 struct wpan_phy *wpan_phy = wpan_phy_idx_to_wpan_phy(cb->args[0] - 1); 284 struct wpan_dev *tmp; 285 286 if (!wpan_phy) { 287 err = -ENODEV; 288 goto out_unlock; 289 } 290 *rdev = wpan_phy_to_rdev(wpan_phy); 291 *wpan_dev = NULL; 292 293 list_for_each_entry(tmp, &(*rdev)->wpan_dev_list, list) { 294 if (tmp->identifier == cb->args[1]) { 295 *wpan_dev = tmp; 296 break; 297 } 298 } 299 300 if (!*wpan_dev) { 301 err = -ENODEV; 302 goto out_unlock; 303 } 304 } 305 306 return 0; 307 out_unlock: 308 rtnl_unlock(); 309 return err; 310 } 311 312 static void 313 nl802154_finish_wpan_dev_dump(struct cfg802154_registered_device *rdev) 314 { 315 rtnl_unlock(); 316 } 317 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */ 318 319 /* message building helper */ 320 static inline void *nl802154hdr_put(struct sk_buff *skb, u32 portid, u32 seq, 321 int flags, u8 cmd) 322 { 323 /* since there is no private header just add the generic one */ 324 return genlmsg_put(skb, portid, seq, &nl802154_fam, flags, cmd); 325 } 326 327 static int 328 nl802154_put_flags(struct sk_buff *msg, int attr, u32 mask) 329 { 330 struct nlattr *nl_flags = nla_nest_start(msg, attr); 331 int i; 332 333 if (!nl_flags) 334 return -ENOBUFS; 335 336 i = 0; 337 while (mask) { 338 if ((mask & 1) && nla_put_flag(msg, i)) 339 return -ENOBUFS; 340 341 mask >>= 1; 342 i++; 343 } 344 345 nla_nest_end(msg, nl_flags); 346 return 0; 347 } 348 349 static int 350 nl802154_send_wpan_phy_channels(struct cfg802154_registered_device *rdev, 351 struct sk_buff *msg) 352 { 353 struct nlattr *nl_page; 354 unsigned long page; 355 356 nl_page = nla_nest_start(msg, NL802154_ATTR_CHANNELS_SUPPORTED); 357 if (!nl_page) 358 return -ENOBUFS; 359 360 for (page = 0; page <= IEEE802154_MAX_PAGE; page++) { 361 if (nla_put_u32(msg, NL802154_ATTR_SUPPORTED_CHANNEL, 362 rdev->wpan_phy.supported.channels[page])) 363 return -ENOBUFS; 364 } 365 nla_nest_end(msg, nl_page); 366 367 return 0; 368 } 369 370 static int 371 nl802154_put_capabilities(struct sk_buff *msg, 372 struct cfg802154_registered_device *rdev) 373 { 374 const struct wpan_phy_supported *caps = &rdev->wpan_phy.supported; 375 struct nlattr *nl_caps, *nl_channels; 376 int i; 377 378 nl_caps = nla_nest_start(msg, NL802154_ATTR_WPAN_PHY_CAPS); 379 if (!nl_caps) 380 return -ENOBUFS; 381 382 nl_channels = nla_nest_start(msg, NL802154_CAP_ATTR_CHANNELS); 383 if (!nl_channels) 384 return -ENOBUFS; 385 386 for (i = 0; i <= IEEE802154_MAX_PAGE; i++) { 387 if (caps->channels[i]) { 388 if (nl802154_put_flags(msg, i, caps->channels[i])) 389 return -ENOBUFS; 390 } 391 } 392 393 nla_nest_end(msg, nl_channels); 394 395 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL) { 396 struct nlattr *nl_ed_lvls; 397 398 nl_ed_lvls = nla_nest_start(msg, 399 NL802154_CAP_ATTR_CCA_ED_LEVELS); 400 if (!nl_ed_lvls) 401 return -ENOBUFS; 402 403 for (i = 0; i < caps->cca_ed_levels_size; i++) { 404 if (nla_put_s32(msg, i, caps->cca_ed_levels[i])) 405 return -ENOBUFS; 406 } 407 408 nla_nest_end(msg, nl_ed_lvls); 409 } 410 411 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER) { 412 struct nlattr *nl_tx_pwrs; 413 414 nl_tx_pwrs = nla_nest_start(msg, NL802154_CAP_ATTR_TX_POWERS); 415 if (!nl_tx_pwrs) 416 return -ENOBUFS; 417 418 for (i = 0; i < caps->tx_powers_size; i++) { 419 if (nla_put_s32(msg, i, caps->tx_powers[i])) 420 return -ENOBUFS; 421 } 422 423 nla_nest_end(msg, nl_tx_pwrs); 424 } 425 426 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE) { 427 if (nl802154_put_flags(msg, NL802154_CAP_ATTR_CCA_MODES, 428 caps->cca_modes) || 429 nl802154_put_flags(msg, NL802154_CAP_ATTR_CCA_OPTS, 430 caps->cca_opts)) 431 return -ENOBUFS; 432 } 433 434 if (nla_put_u8(msg, NL802154_CAP_ATTR_MIN_MINBE, caps->min_minbe) || 435 nla_put_u8(msg, NL802154_CAP_ATTR_MAX_MINBE, caps->max_minbe) || 436 nla_put_u8(msg, NL802154_CAP_ATTR_MIN_MAXBE, caps->min_maxbe) || 437 nla_put_u8(msg, NL802154_CAP_ATTR_MAX_MAXBE, caps->max_maxbe) || 438 nla_put_u8(msg, NL802154_CAP_ATTR_MIN_CSMA_BACKOFFS, 439 caps->min_csma_backoffs) || 440 nla_put_u8(msg, NL802154_CAP_ATTR_MAX_CSMA_BACKOFFS, 441 caps->max_csma_backoffs) || 442 nla_put_s8(msg, NL802154_CAP_ATTR_MIN_FRAME_RETRIES, 443 caps->min_frame_retries) || 444 nla_put_s8(msg, NL802154_CAP_ATTR_MAX_FRAME_RETRIES, 445 caps->max_frame_retries) || 446 nl802154_put_flags(msg, NL802154_CAP_ATTR_IFTYPES, 447 caps->iftypes) || 448 nla_put_u32(msg, NL802154_CAP_ATTR_LBT, caps->lbt)) 449 return -ENOBUFS; 450 451 nla_nest_end(msg, nl_caps); 452 453 return 0; 454 } 455 456 static int nl802154_send_wpan_phy(struct cfg802154_registered_device *rdev, 457 enum nl802154_commands cmd, 458 struct sk_buff *msg, u32 portid, u32 seq, 459 int flags) 460 { 461 struct nlattr *nl_cmds; 462 void *hdr; 463 int i; 464 465 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd); 466 if (!hdr) 467 return -ENOBUFS; 468 469 if (nla_put_u32(msg, NL802154_ATTR_WPAN_PHY, rdev->wpan_phy_idx) || 470 nla_put_string(msg, NL802154_ATTR_WPAN_PHY_NAME, 471 wpan_phy_name(&rdev->wpan_phy)) || 472 nla_put_u32(msg, NL802154_ATTR_GENERATION, 473 cfg802154_rdev_list_generation)) 474 goto nla_put_failure; 475 476 if (cmd != NL802154_CMD_NEW_WPAN_PHY) 477 goto finish; 478 479 /* DUMP PHY PIB */ 480 481 /* current channel settings */ 482 if (nla_put_u8(msg, NL802154_ATTR_PAGE, 483 rdev->wpan_phy.current_page) || 484 nla_put_u8(msg, NL802154_ATTR_CHANNEL, 485 rdev->wpan_phy.current_channel)) 486 goto nla_put_failure; 487 488 /* TODO remove this behaviour, we still keep support it for a while 489 * so users can change the behaviour to the new one. 490 */ 491 if (nl802154_send_wpan_phy_channels(rdev, msg)) 492 goto nla_put_failure; 493 494 /* cca mode */ 495 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE) { 496 if (nla_put_u32(msg, NL802154_ATTR_CCA_MODE, 497 rdev->wpan_phy.cca.mode)) 498 goto nla_put_failure; 499 500 if (rdev->wpan_phy.cca.mode == NL802154_CCA_ENERGY_CARRIER) { 501 if (nla_put_u32(msg, NL802154_ATTR_CCA_OPT, 502 rdev->wpan_phy.cca.opt)) 503 goto nla_put_failure; 504 } 505 } 506 507 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER) { 508 if (nla_put_s32(msg, NL802154_ATTR_TX_POWER, 509 rdev->wpan_phy.transmit_power)) 510 goto nla_put_failure; 511 } 512 513 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL) { 514 if (nla_put_s32(msg, NL802154_ATTR_CCA_ED_LEVEL, 515 rdev->wpan_phy.cca_ed_level)) 516 goto nla_put_failure; 517 } 518 519 if (nl802154_put_capabilities(msg, rdev)) 520 goto nla_put_failure; 521 522 nl_cmds = nla_nest_start(msg, NL802154_ATTR_SUPPORTED_COMMANDS); 523 if (!nl_cmds) 524 goto nla_put_failure; 525 526 i = 0; 527 #define CMD(op, n) \ 528 do { \ 529 if (rdev->ops->op) { \ 530 i++; \ 531 if (nla_put_u32(msg, i, NL802154_CMD_ ## n)) \ 532 goto nla_put_failure; \ 533 } \ 534 } while (0) 535 536 CMD(add_virtual_intf, NEW_INTERFACE); 537 CMD(del_virtual_intf, DEL_INTERFACE); 538 CMD(set_channel, SET_CHANNEL); 539 CMD(set_pan_id, SET_PAN_ID); 540 CMD(set_short_addr, SET_SHORT_ADDR); 541 CMD(set_backoff_exponent, SET_BACKOFF_EXPONENT); 542 CMD(set_max_csma_backoffs, SET_MAX_CSMA_BACKOFFS); 543 CMD(set_max_frame_retries, SET_MAX_FRAME_RETRIES); 544 CMD(set_lbt_mode, SET_LBT_MODE); 545 CMD(set_ackreq_default, SET_ACKREQ_DEFAULT); 546 547 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER) 548 CMD(set_tx_power, SET_TX_POWER); 549 550 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL) 551 CMD(set_cca_ed_level, SET_CCA_ED_LEVEL); 552 553 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE) 554 CMD(set_cca_mode, SET_CCA_MODE); 555 556 #undef CMD 557 nla_nest_end(msg, nl_cmds); 558 559 finish: 560 genlmsg_end(msg, hdr); 561 return 0; 562 563 nla_put_failure: 564 genlmsg_cancel(msg, hdr); 565 return -EMSGSIZE; 566 } 567 568 struct nl802154_dump_wpan_phy_state { 569 s64 filter_wpan_phy; 570 long start; 571 572 }; 573 574 static int nl802154_dump_wpan_phy_parse(struct sk_buff *skb, 575 struct netlink_callback *cb, 576 struct nl802154_dump_wpan_phy_state *state) 577 { 578 struct nlattr **tb = nl802154_fam.attrbuf; 579 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl802154_fam.hdrsize, 580 tb, nl802154_fam.maxattr, nl802154_policy); 581 582 /* TODO check if we can handle error here, 583 * we have no backward compatibility 584 */ 585 if (ret) 586 return 0; 587 588 if (tb[NL802154_ATTR_WPAN_PHY]) 589 state->filter_wpan_phy = nla_get_u32(tb[NL802154_ATTR_WPAN_PHY]); 590 if (tb[NL802154_ATTR_WPAN_DEV]) 591 state->filter_wpan_phy = nla_get_u64(tb[NL802154_ATTR_WPAN_DEV]) >> 32; 592 if (tb[NL802154_ATTR_IFINDEX]) { 593 struct net_device *netdev; 594 struct cfg802154_registered_device *rdev; 595 int ifidx = nla_get_u32(tb[NL802154_ATTR_IFINDEX]); 596 597 netdev = __dev_get_by_index(&init_net, ifidx); 598 if (!netdev) 599 return -ENODEV; 600 if (netdev->ieee802154_ptr) { 601 rdev = wpan_phy_to_rdev( 602 netdev->ieee802154_ptr->wpan_phy); 603 state->filter_wpan_phy = rdev->wpan_phy_idx; 604 } 605 } 606 607 return 0; 608 } 609 610 static int 611 nl802154_dump_wpan_phy(struct sk_buff *skb, struct netlink_callback *cb) 612 { 613 int idx = 0, ret; 614 struct nl802154_dump_wpan_phy_state *state = (void *)cb->args[0]; 615 struct cfg802154_registered_device *rdev; 616 617 rtnl_lock(); 618 if (!state) { 619 state = kzalloc(sizeof(*state), GFP_KERNEL); 620 if (!state) { 621 rtnl_unlock(); 622 return -ENOMEM; 623 } 624 state->filter_wpan_phy = -1; 625 ret = nl802154_dump_wpan_phy_parse(skb, cb, state); 626 if (ret) { 627 kfree(state); 628 rtnl_unlock(); 629 return ret; 630 } 631 cb->args[0] = (long)state; 632 } 633 634 list_for_each_entry(rdev, &cfg802154_rdev_list, list) { 635 if (!net_eq(wpan_phy_net(&rdev->wpan_phy), sock_net(skb->sk))) 636 continue; 637 if (++idx <= state->start) 638 continue; 639 if (state->filter_wpan_phy != -1 && 640 state->filter_wpan_phy != rdev->wpan_phy_idx) 641 continue; 642 /* attempt to fit multiple wpan_phy data chunks into the skb */ 643 ret = nl802154_send_wpan_phy(rdev, 644 NL802154_CMD_NEW_WPAN_PHY, 645 skb, 646 NETLINK_CB(cb->skb).portid, 647 cb->nlh->nlmsg_seq, NLM_F_MULTI); 648 if (ret < 0) { 649 if ((ret == -ENOBUFS || ret == -EMSGSIZE) && 650 !skb->len && cb->min_dump_alloc < 4096) { 651 cb->min_dump_alloc = 4096; 652 rtnl_unlock(); 653 return 1; 654 } 655 idx--; 656 break; 657 } 658 break; 659 } 660 rtnl_unlock(); 661 662 state->start = idx; 663 664 return skb->len; 665 } 666 667 static int nl802154_dump_wpan_phy_done(struct netlink_callback *cb) 668 { 669 kfree((void *)cb->args[0]); 670 return 0; 671 } 672 673 static int nl802154_get_wpan_phy(struct sk_buff *skb, struct genl_info *info) 674 { 675 struct sk_buff *msg; 676 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 677 678 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); 679 if (!msg) 680 return -ENOMEM; 681 682 if (nl802154_send_wpan_phy(rdev, NL802154_CMD_NEW_WPAN_PHY, msg, 683 info->snd_portid, info->snd_seq, 0) < 0) { 684 nlmsg_free(msg); 685 return -ENOBUFS; 686 } 687 688 return genlmsg_reply(msg, info); 689 } 690 691 static inline u64 wpan_dev_id(struct wpan_dev *wpan_dev) 692 { 693 return (u64)wpan_dev->identifier | 694 ((u64)wpan_phy_to_rdev(wpan_dev->wpan_phy)->wpan_phy_idx << 32); 695 } 696 697 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL 698 #include <net/ieee802154_netdev.h> 699 700 static int 701 ieee802154_llsec_send_key_id(struct sk_buff *msg, 702 const struct ieee802154_llsec_key_id *desc) 703 { 704 struct nlattr *nl_dev_addr; 705 706 if (nla_put_u32(msg, NL802154_KEY_ID_ATTR_MODE, desc->mode)) 707 return -ENOBUFS; 708 709 switch (desc->mode) { 710 case NL802154_KEY_ID_MODE_IMPLICIT: 711 nl_dev_addr = nla_nest_start(msg, NL802154_KEY_ID_ATTR_IMPLICIT); 712 if (!nl_dev_addr) 713 return -ENOBUFS; 714 715 if (nla_put_le16(msg, NL802154_DEV_ADDR_ATTR_PAN_ID, 716 desc->device_addr.pan_id) || 717 nla_put_u32(msg, NL802154_DEV_ADDR_ATTR_MODE, 718 desc->device_addr.mode)) 719 return -ENOBUFS; 720 721 switch (desc->device_addr.mode) { 722 case NL802154_DEV_ADDR_SHORT: 723 if (nla_put_le16(msg, NL802154_DEV_ADDR_ATTR_SHORT, 724 desc->device_addr.short_addr)) 725 return -ENOBUFS; 726 break; 727 case NL802154_DEV_ADDR_EXTENDED: 728 if (nla_put_le64(msg, NL802154_DEV_ADDR_ATTR_EXTENDED, 729 desc->device_addr.extended_addr, 730 NL802154_DEV_ADDR_ATTR_PAD)) 731 return -ENOBUFS; 732 break; 733 default: 734 /* userspace should handle unknown */ 735 break; 736 } 737 738 nla_nest_end(msg, nl_dev_addr); 739 break; 740 case NL802154_KEY_ID_MODE_INDEX: 741 break; 742 case NL802154_KEY_ID_MODE_INDEX_SHORT: 743 /* TODO renmae short_source? */ 744 if (nla_put_le32(msg, NL802154_KEY_ID_ATTR_SOURCE_SHORT, 745 desc->short_source)) 746 return -ENOBUFS; 747 break; 748 case NL802154_KEY_ID_MODE_INDEX_EXTENDED: 749 if (nla_put_le64(msg, NL802154_KEY_ID_ATTR_SOURCE_EXTENDED, 750 desc->extended_source, 751 NL802154_KEY_ID_ATTR_PAD)) 752 return -ENOBUFS; 753 break; 754 default: 755 /* userspace should handle unknown */ 756 break; 757 } 758 759 /* TODO key_id to key_idx ? Check naming */ 760 if (desc->mode != NL802154_KEY_ID_MODE_IMPLICIT) { 761 if (nla_put_u8(msg, NL802154_KEY_ID_ATTR_INDEX, desc->id)) 762 return -ENOBUFS; 763 } 764 765 return 0; 766 } 767 768 static int nl802154_get_llsec_params(struct sk_buff *msg, 769 struct cfg802154_registered_device *rdev, 770 struct wpan_dev *wpan_dev) 771 { 772 struct nlattr *nl_key_id; 773 struct ieee802154_llsec_params params; 774 int ret; 775 776 ret = rdev_get_llsec_params(rdev, wpan_dev, ¶ms); 777 if (ret < 0) 778 return ret; 779 780 if (nla_put_u8(msg, NL802154_ATTR_SEC_ENABLED, params.enabled) || 781 nla_put_u32(msg, NL802154_ATTR_SEC_OUT_LEVEL, params.out_level) || 782 nla_put_be32(msg, NL802154_ATTR_SEC_FRAME_COUNTER, 783 params.frame_counter)) 784 return -ENOBUFS; 785 786 nl_key_id = nla_nest_start(msg, NL802154_ATTR_SEC_OUT_KEY_ID); 787 if (!nl_key_id) 788 return -ENOBUFS; 789 790 ret = ieee802154_llsec_send_key_id(msg, ¶ms.out_key); 791 if (ret < 0) 792 return ret; 793 794 nla_nest_end(msg, nl_key_id); 795 796 return 0; 797 } 798 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */ 799 800 static int 801 nl802154_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags, 802 struct cfg802154_registered_device *rdev, 803 struct wpan_dev *wpan_dev) 804 { 805 struct net_device *dev = wpan_dev->netdev; 806 void *hdr; 807 808 hdr = nl802154hdr_put(msg, portid, seq, flags, 809 NL802154_CMD_NEW_INTERFACE); 810 if (!hdr) 811 return -1; 812 813 if (dev && 814 (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex) || 815 nla_put_string(msg, NL802154_ATTR_IFNAME, dev->name))) 816 goto nla_put_failure; 817 818 if (nla_put_u32(msg, NL802154_ATTR_WPAN_PHY, rdev->wpan_phy_idx) || 819 nla_put_u32(msg, NL802154_ATTR_IFTYPE, wpan_dev->iftype) || 820 nla_put_u64_64bit(msg, NL802154_ATTR_WPAN_DEV, 821 wpan_dev_id(wpan_dev), NL802154_ATTR_PAD) || 822 nla_put_u32(msg, NL802154_ATTR_GENERATION, 823 rdev->devlist_generation ^ 824 (cfg802154_rdev_list_generation << 2))) 825 goto nla_put_failure; 826 827 /* address settings */ 828 if (nla_put_le64(msg, NL802154_ATTR_EXTENDED_ADDR, 829 wpan_dev->extended_addr, 830 NL802154_ATTR_PAD) || 831 nla_put_le16(msg, NL802154_ATTR_SHORT_ADDR, 832 wpan_dev->short_addr) || 833 nla_put_le16(msg, NL802154_ATTR_PAN_ID, wpan_dev->pan_id)) 834 goto nla_put_failure; 835 836 /* ARET handling */ 837 if (nla_put_s8(msg, NL802154_ATTR_MAX_FRAME_RETRIES, 838 wpan_dev->frame_retries) || 839 nla_put_u8(msg, NL802154_ATTR_MAX_BE, wpan_dev->max_be) || 840 nla_put_u8(msg, NL802154_ATTR_MAX_CSMA_BACKOFFS, 841 wpan_dev->csma_retries) || 842 nla_put_u8(msg, NL802154_ATTR_MIN_BE, wpan_dev->min_be)) 843 goto nla_put_failure; 844 845 /* listen before transmit */ 846 if (nla_put_u8(msg, NL802154_ATTR_LBT_MODE, wpan_dev->lbt)) 847 goto nla_put_failure; 848 849 /* ackreq default behaviour */ 850 if (nla_put_u8(msg, NL802154_ATTR_ACKREQ_DEFAULT, wpan_dev->ackreq)) 851 goto nla_put_failure; 852 853 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL 854 if (nl802154_get_llsec_params(msg, rdev, wpan_dev) < 0) 855 goto nla_put_failure; 856 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */ 857 858 genlmsg_end(msg, hdr); 859 return 0; 860 861 nla_put_failure: 862 genlmsg_cancel(msg, hdr); 863 return -EMSGSIZE; 864 } 865 866 static int 867 nl802154_dump_interface(struct sk_buff *skb, struct netlink_callback *cb) 868 { 869 int wp_idx = 0; 870 int if_idx = 0; 871 int wp_start = cb->args[0]; 872 int if_start = cb->args[1]; 873 struct cfg802154_registered_device *rdev; 874 struct wpan_dev *wpan_dev; 875 876 rtnl_lock(); 877 list_for_each_entry(rdev, &cfg802154_rdev_list, list) { 878 if (!net_eq(wpan_phy_net(&rdev->wpan_phy), sock_net(skb->sk))) 879 continue; 880 if (wp_idx < wp_start) { 881 wp_idx++; 882 continue; 883 } 884 if_idx = 0; 885 886 list_for_each_entry(wpan_dev, &rdev->wpan_dev_list, list) { 887 if (if_idx < if_start) { 888 if_idx++; 889 continue; 890 } 891 if (nl802154_send_iface(skb, NETLINK_CB(cb->skb).portid, 892 cb->nlh->nlmsg_seq, NLM_F_MULTI, 893 rdev, wpan_dev) < 0) { 894 goto out; 895 } 896 if_idx++; 897 } 898 899 wp_idx++; 900 } 901 out: 902 rtnl_unlock(); 903 904 cb->args[0] = wp_idx; 905 cb->args[1] = if_idx; 906 907 return skb->len; 908 } 909 910 static int nl802154_get_interface(struct sk_buff *skb, struct genl_info *info) 911 { 912 struct sk_buff *msg; 913 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 914 struct wpan_dev *wdev = info->user_ptr[1]; 915 916 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); 917 if (!msg) 918 return -ENOMEM; 919 920 if (nl802154_send_iface(msg, info->snd_portid, info->snd_seq, 0, 921 rdev, wdev) < 0) { 922 nlmsg_free(msg); 923 return -ENOBUFS; 924 } 925 926 return genlmsg_reply(msg, info); 927 } 928 929 static int nl802154_new_interface(struct sk_buff *skb, struct genl_info *info) 930 { 931 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 932 enum nl802154_iftype type = NL802154_IFTYPE_UNSPEC; 933 __le64 extended_addr = cpu_to_le64(0x0000000000000000ULL); 934 935 /* TODO avoid failing a new interface 936 * creation due to pending removal? 937 */ 938 939 if (!info->attrs[NL802154_ATTR_IFNAME]) 940 return -EINVAL; 941 942 if (info->attrs[NL802154_ATTR_IFTYPE]) { 943 type = nla_get_u32(info->attrs[NL802154_ATTR_IFTYPE]); 944 if (type > NL802154_IFTYPE_MAX || 945 !(rdev->wpan_phy.supported.iftypes & BIT(type))) 946 return -EINVAL; 947 } 948 949 if (info->attrs[NL802154_ATTR_EXTENDED_ADDR]) 950 extended_addr = nla_get_le64(info->attrs[NL802154_ATTR_EXTENDED_ADDR]); 951 952 if (!rdev->ops->add_virtual_intf) 953 return -EOPNOTSUPP; 954 955 return rdev_add_virtual_intf(rdev, 956 nla_data(info->attrs[NL802154_ATTR_IFNAME]), 957 NET_NAME_USER, type, extended_addr); 958 } 959 960 static int nl802154_del_interface(struct sk_buff *skb, struct genl_info *info) 961 { 962 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 963 struct wpan_dev *wpan_dev = info->user_ptr[1]; 964 965 if (!rdev->ops->del_virtual_intf) 966 return -EOPNOTSUPP; 967 968 /* If we remove a wpan device without a netdev then clear 969 * user_ptr[1] so that nl802154_post_doit won't dereference it 970 * to check if it needs to do dev_put(). Otherwise it crashes 971 * since the wpan_dev has been freed, unlike with a netdev where 972 * we need the dev_put() for the netdev to really be freed. 973 */ 974 if (!wpan_dev->netdev) 975 info->user_ptr[1] = NULL; 976 977 return rdev_del_virtual_intf(rdev, wpan_dev); 978 } 979 980 static int nl802154_set_channel(struct sk_buff *skb, struct genl_info *info) 981 { 982 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 983 u8 channel, page; 984 985 if (!info->attrs[NL802154_ATTR_PAGE] || 986 !info->attrs[NL802154_ATTR_CHANNEL]) 987 return -EINVAL; 988 989 page = nla_get_u8(info->attrs[NL802154_ATTR_PAGE]); 990 channel = nla_get_u8(info->attrs[NL802154_ATTR_CHANNEL]); 991 992 /* check 802.15.4 constraints */ 993 if (page > IEEE802154_MAX_PAGE || channel > IEEE802154_MAX_CHANNEL || 994 !(rdev->wpan_phy.supported.channels[page] & BIT(channel))) 995 return -EINVAL; 996 997 return rdev_set_channel(rdev, page, channel); 998 } 999 1000 static int nl802154_set_cca_mode(struct sk_buff *skb, struct genl_info *info) 1001 { 1002 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1003 struct wpan_phy_cca cca; 1004 1005 if (!(rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE)) 1006 return -EOPNOTSUPP; 1007 1008 if (!info->attrs[NL802154_ATTR_CCA_MODE]) 1009 return -EINVAL; 1010 1011 cca.mode = nla_get_u32(info->attrs[NL802154_ATTR_CCA_MODE]); 1012 /* checking 802.15.4 constraints */ 1013 if (cca.mode < NL802154_CCA_ENERGY || 1014 cca.mode > NL802154_CCA_ATTR_MAX || 1015 !(rdev->wpan_phy.supported.cca_modes & BIT(cca.mode))) 1016 return -EINVAL; 1017 1018 if (cca.mode == NL802154_CCA_ENERGY_CARRIER) { 1019 if (!info->attrs[NL802154_ATTR_CCA_OPT]) 1020 return -EINVAL; 1021 1022 cca.opt = nla_get_u32(info->attrs[NL802154_ATTR_CCA_OPT]); 1023 if (cca.opt > NL802154_CCA_OPT_ATTR_MAX || 1024 !(rdev->wpan_phy.supported.cca_opts & BIT(cca.opt))) 1025 return -EINVAL; 1026 } 1027 1028 return rdev_set_cca_mode(rdev, &cca); 1029 } 1030 1031 static int nl802154_set_cca_ed_level(struct sk_buff *skb, struct genl_info *info) 1032 { 1033 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1034 s32 ed_level; 1035 int i; 1036 1037 if (!(rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL)) 1038 return -EOPNOTSUPP; 1039 1040 if (!info->attrs[NL802154_ATTR_CCA_ED_LEVEL]) 1041 return -EINVAL; 1042 1043 ed_level = nla_get_s32(info->attrs[NL802154_ATTR_CCA_ED_LEVEL]); 1044 1045 for (i = 0; i < rdev->wpan_phy.supported.cca_ed_levels_size; i++) { 1046 if (ed_level == rdev->wpan_phy.supported.cca_ed_levels[i]) 1047 return rdev_set_cca_ed_level(rdev, ed_level); 1048 } 1049 1050 return -EINVAL; 1051 } 1052 1053 static int nl802154_set_tx_power(struct sk_buff *skb, struct genl_info *info) 1054 { 1055 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1056 s32 power; 1057 int i; 1058 1059 if (!(rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER)) 1060 return -EOPNOTSUPP; 1061 1062 if (!info->attrs[NL802154_ATTR_TX_POWER]) 1063 return -EINVAL; 1064 1065 power = nla_get_s32(info->attrs[NL802154_ATTR_TX_POWER]); 1066 1067 for (i = 0; i < rdev->wpan_phy.supported.tx_powers_size; i++) { 1068 if (power == rdev->wpan_phy.supported.tx_powers[i]) 1069 return rdev_set_tx_power(rdev, power); 1070 } 1071 1072 return -EINVAL; 1073 } 1074 1075 static int nl802154_set_pan_id(struct sk_buff *skb, struct genl_info *info) 1076 { 1077 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1078 struct net_device *dev = info->user_ptr[1]; 1079 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1080 __le16 pan_id; 1081 1082 /* conflict here while tx/rx calls */ 1083 if (netif_running(dev)) 1084 return -EBUSY; 1085 1086 if (wpan_dev->lowpan_dev) { 1087 if (netif_running(wpan_dev->lowpan_dev)) 1088 return -EBUSY; 1089 } 1090 1091 /* don't change address fields on monitor */ 1092 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR || 1093 !info->attrs[NL802154_ATTR_PAN_ID]) 1094 return -EINVAL; 1095 1096 pan_id = nla_get_le16(info->attrs[NL802154_ATTR_PAN_ID]); 1097 1098 /* TODO 1099 * I am not sure about to check here on broadcast pan_id. 1100 * Broadcast is a valid setting, comment from 802.15.4: 1101 * If this value is 0xffff, the device is not associated. 1102 * 1103 * This could useful to simple deassociate an device. 1104 */ 1105 if (pan_id == cpu_to_le16(IEEE802154_PAN_ID_BROADCAST)) 1106 return -EINVAL; 1107 1108 return rdev_set_pan_id(rdev, wpan_dev, pan_id); 1109 } 1110 1111 static int nl802154_set_short_addr(struct sk_buff *skb, struct genl_info *info) 1112 { 1113 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1114 struct net_device *dev = info->user_ptr[1]; 1115 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1116 __le16 short_addr; 1117 1118 /* conflict here while tx/rx calls */ 1119 if (netif_running(dev)) 1120 return -EBUSY; 1121 1122 if (wpan_dev->lowpan_dev) { 1123 if (netif_running(wpan_dev->lowpan_dev)) 1124 return -EBUSY; 1125 } 1126 1127 /* don't change address fields on monitor */ 1128 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR || 1129 !info->attrs[NL802154_ATTR_SHORT_ADDR]) 1130 return -EINVAL; 1131 1132 short_addr = nla_get_le16(info->attrs[NL802154_ATTR_SHORT_ADDR]); 1133 1134 /* TODO 1135 * I am not sure about to check here on broadcast short_addr. 1136 * Broadcast is a valid setting, comment from 802.15.4: 1137 * A value of 0xfffe indicates that the device has 1138 * associated but has not been allocated an address. A 1139 * value of 0xffff indicates that the device does not 1140 * have a short address. 1141 * 1142 * I think we should allow to set these settings but 1143 * don't allow to allow socket communication with it. 1144 */ 1145 if (short_addr == cpu_to_le16(IEEE802154_ADDR_SHORT_UNSPEC) || 1146 short_addr == cpu_to_le16(IEEE802154_ADDR_SHORT_BROADCAST)) 1147 return -EINVAL; 1148 1149 return rdev_set_short_addr(rdev, wpan_dev, short_addr); 1150 } 1151 1152 static int 1153 nl802154_set_backoff_exponent(struct sk_buff *skb, struct genl_info *info) 1154 { 1155 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1156 struct net_device *dev = info->user_ptr[1]; 1157 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1158 u8 min_be, max_be; 1159 1160 /* should be set on netif open inside phy settings */ 1161 if (netif_running(dev)) 1162 return -EBUSY; 1163 1164 if (!info->attrs[NL802154_ATTR_MIN_BE] || 1165 !info->attrs[NL802154_ATTR_MAX_BE]) 1166 return -EINVAL; 1167 1168 min_be = nla_get_u8(info->attrs[NL802154_ATTR_MIN_BE]); 1169 max_be = nla_get_u8(info->attrs[NL802154_ATTR_MAX_BE]); 1170 1171 /* check 802.15.4 constraints */ 1172 if (min_be < rdev->wpan_phy.supported.min_minbe || 1173 min_be > rdev->wpan_phy.supported.max_minbe || 1174 max_be < rdev->wpan_phy.supported.min_maxbe || 1175 max_be > rdev->wpan_phy.supported.max_maxbe || 1176 min_be > max_be) 1177 return -EINVAL; 1178 1179 return rdev_set_backoff_exponent(rdev, wpan_dev, min_be, max_be); 1180 } 1181 1182 static int 1183 nl802154_set_max_csma_backoffs(struct sk_buff *skb, struct genl_info *info) 1184 { 1185 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1186 struct net_device *dev = info->user_ptr[1]; 1187 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1188 u8 max_csma_backoffs; 1189 1190 /* conflict here while other running iface settings */ 1191 if (netif_running(dev)) 1192 return -EBUSY; 1193 1194 if (!info->attrs[NL802154_ATTR_MAX_CSMA_BACKOFFS]) 1195 return -EINVAL; 1196 1197 max_csma_backoffs = nla_get_u8( 1198 info->attrs[NL802154_ATTR_MAX_CSMA_BACKOFFS]); 1199 1200 /* check 802.15.4 constraints */ 1201 if (max_csma_backoffs < rdev->wpan_phy.supported.min_csma_backoffs || 1202 max_csma_backoffs > rdev->wpan_phy.supported.max_csma_backoffs) 1203 return -EINVAL; 1204 1205 return rdev_set_max_csma_backoffs(rdev, wpan_dev, max_csma_backoffs); 1206 } 1207 1208 static int 1209 nl802154_set_max_frame_retries(struct sk_buff *skb, struct genl_info *info) 1210 { 1211 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1212 struct net_device *dev = info->user_ptr[1]; 1213 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1214 s8 max_frame_retries; 1215 1216 if (netif_running(dev)) 1217 return -EBUSY; 1218 1219 if (!info->attrs[NL802154_ATTR_MAX_FRAME_RETRIES]) 1220 return -EINVAL; 1221 1222 max_frame_retries = nla_get_s8( 1223 info->attrs[NL802154_ATTR_MAX_FRAME_RETRIES]); 1224 1225 /* check 802.15.4 constraints */ 1226 if (max_frame_retries < rdev->wpan_phy.supported.min_frame_retries || 1227 max_frame_retries > rdev->wpan_phy.supported.max_frame_retries) 1228 return -EINVAL; 1229 1230 return rdev_set_max_frame_retries(rdev, wpan_dev, max_frame_retries); 1231 } 1232 1233 static int nl802154_set_lbt_mode(struct sk_buff *skb, struct genl_info *info) 1234 { 1235 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1236 struct net_device *dev = info->user_ptr[1]; 1237 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1238 int mode; 1239 1240 if (netif_running(dev)) 1241 return -EBUSY; 1242 1243 if (!info->attrs[NL802154_ATTR_LBT_MODE]) 1244 return -EINVAL; 1245 1246 mode = nla_get_u8(info->attrs[NL802154_ATTR_LBT_MODE]); 1247 1248 if (mode != 0 && mode != 1) 1249 return -EINVAL; 1250 1251 if (!wpan_phy_supported_bool(mode, rdev->wpan_phy.supported.lbt)) 1252 return -EINVAL; 1253 1254 return rdev_set_lbt_mode(rdev, wpan_dev, mode); 1255 } 1256 1257 static int 1258 nl802154_set_ackreq_default(struct sk_buff *skb, struct genl_info *info) 1259 { 1260 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1261 struct net_device *dev = info->user_ptr[1]; 1262 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1263 int ackreq; 1264 1265 if (netif_running(dev)) 1266 return -EBUSY; 1267 1268 if (!info->attrs[NL802154_ATTR_ACKREQ_DEFAULT]) 1269 return -EINVAL; 1270 1271 ackreq = nla_get_u8(info->attrs[NL802154_ATTR_ACKREQ_DEFAULT]); 1272 1273 if (ackreq != 0 && ackreq != 1) 1274 return -EINVAL; 1275 1276 return rdev_set_ackreq_default(rdev, wpan_dev, ackreq); 1277 } 1278 1279 static int nl802154_wpan_phy_netns(struct sk_buff *skb, struct genl_info *info) 1280 { 1281 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1282 struct net *net; 1283 int err; 1284 1285 if (info->attrs[NL802154_ATTR_PID]) { 1286 u32 pid = nla_get_u32(info->attrs[NL802154_ATTR_PID]); 1287 1288 net = get_net_ns_by_pid(pid); 1289 } else if (info->attrs[NL802154_ATTR_NETNS_FD]) { 1290 u32 fd = nla_get_u32(info->attrs[NL802154_ATTR_NETNS_FD]); 1291 1292 net = get_net_ns_by_fd(fd); 1293 } else { 1294 return -EINVAL; 1295 } 1296 1297 if (IS_ERR(net)) 1298 return PTR_ERR(net); 1299 1300 err = 0; 1301 1302 /* check if anything to do */ 1303 if (!net_eq(wpan_phy_net(&rdev->wpan_phy), net)) 1304 err = cfg802154_switch_netns(rdev, net); 1305 1306 put_net(net); 1307 return err; 1308 } 1309 1310 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL 1311 static const struct nla_policy nl802154_dev_addr_policy[NL802154_DEV_ADDR_ATTR_MAX + 1] = { 1312 [NL802154_DEV_ADDR_ATTR_PAN_ID] = { .type = NLA_U16 }, 1313 [NL802154_DEV_ADDR_ATTR_MODE] = { .type = NLA_U32 }, 1314 [NL802154_DEV_ADDR_ATTR_SHORT] = { .type = NLA_U16 }, 1315 [NL802154_DEV_ADDR_ATTR_EXTENDED] = { .type = NLA_U64 }, 1316 }; 1317 1318 static int 1319 ieee802154_llsec_parse_dev_addr(struct nlattr *nla, 1320 struct ieee802154_addr *addr) 1321 { 1322 struct nlattr *attrs[NL802154_DEV_ADDR_ATTR_MAX + 1]; 1323 1324 if (!nla || nla_parse_nested(attrs, NL802154_DEV_ADDR_ATTR_MAX, nla, 1325 nl802154_dev_addr_policy)) 1326 return -EINVAL; 1327 1328 if (!attrs[NL802154_DEV_ADDR_ATTR_PAN_ID] || 1329 !attrs[NL802154_DEV_ADDR_ATTR_MODE] || 1330 !(attrs[NL802154_DEV_ADDR_ATTR_SHORT] || 1331 attrs[NL802154_DEV_ADDR_ATTR_EXTENDED])) 1332 return -EINVAL; 1333 1334 addr->pan_id = nla_get_le16(attrs[NL802154_DEV_ADDR_ATTR_PAN_ID]); 1335 addr->mode = nla_get_u32(attrs[NL802154_DEV_ADDR_ATTR_MODE]); 1336 switch (addr->mode) { 1337 case NL802154_DEV_ADDR_SHORT: 1338 addr->short_addr = nla_get_le16(attrs[NL802154_DEV_ADDR_ATTR_SHORT]); 1339 break; 1340 case NL802154_DEV_ADDR_EXTENDED: 1341 addr->extended_addr = nla_get_le64(attrs[NL802154_DEV_ADDR_ATTR_EXTENDED]); 1342 break; 1343 default: 1344 return -EINVAL; 1345 } 1346 1347 return 0; 1348 } 1349 1350 static const struct nla_policy nl802154_key_id_policy[NL802154_KEY_ID_ATTR_MAX + 1] = { 1351 [NL802154_KEY_ID_ATTR_MODE] = { .type = NLA_U32 }, 1352 [NL802154_KEY_ID_ATTR_INDEX] = { .type = NLA_U8 }, 1353 [NL802154_KEY_ID_ATTR_IMPLICIT] = { .type = NLA_NESTED }, 1354 [NL802154_KEY_ID_ATTR_SOURCE_SHORT] = { .type = NLA_U32 }, 1355 [NL802154_KEY_ID_ATTR_SOURCE_EXTENDED] = { .type = NLA_U64 }, 1356 }; 1357 1358 static int 1359 ieee802154_llsec_parse_key_id(struct nlattr *nla, 1360 struct ieee802154_llsec_key_id *desc) 1361 { 1362 struct nlattr *attrs[NL802154_KEY_ID_ATTR_MAX + 1]; 1363 1364 if (!nla || nla_parse_nested(attrs, NL802154_KEY_ID_ATTR_MAX, nla, 1365 nl802154_key_id_policy)) 1366 return -EINVAL; 1367 1368 if (!attrs[NL802154_KEY_ID_ATTR_MODE]) 1369 return -EINVAL; 1370 1371 desc->mode = nla_get_u32(attrs[NL802154_KEY_ID_ATTR_MODE]); 1372 switch (desc->mode) { 1373 case NL802154_KEY_ID_MODE_IMPLICIT: 1374 if (!attrs[NL802154_KEY_ID_ATTR_IMPLICIT]) 1375 return -EINVAL; 1376 1377 if (ieee802154_llsec_parse_dev_addr(attrs[NL802154_KEY_ID_ATTR_IMPLICIT], 1378 &desc->device_addr) < 0) 1379 return -EINVAL; 1380 break; 1381 case NL802154_KEY_ID_MODE_INDEX: 1382 break; 1383 case NL802154_KEY_ID_MODE_INDEX_SHORT: 1384 if (!attrs[NL802154_KEY_ID_ATTR_SOURCE_SHORT]) 1385 return -EINVAL; 1386 1387 desc->short_source = nla_get_le32(attrs[NL802154_KEY_ID_ATTR_SOURCE_SHORT]); 1388 break; 1389 case NL802154_KEY_ID_MODE_INDEX_EXTENDED: 1390 if (!attrs[NL802154_KEY_ID_ATTR_SOURCE_EXTENDED]) 1391 return -EINVAL; 1392 1393 desc->extended_source = nla_get_le64(attrs[NL802154_KEY_ID_ATTR_SOURCE_EXTENDED]); 1394 break; 1395 default: 1396 return -EINVAL; 1397 } 1398 1399 if (desc->mode != NL802154_KEY_ID_MODE_IMPLICIT) { 1400 if (!attrs[NL802154_KEY_ID_ATTR_INDEX]) 1401 return -EINVAL; 1402 1403 /* TODO change id to idx */ 1404 desc->id = nla_get_u8(attrs[NL802154_KEY_ID_ATTR_INDEX]); 1405 } 1406 1407 return 0; 1408 } 1409 1410 static int nl802154_set_llsec_params(struct sk_buff *skb, 1411 struct genl_info *info) 1412 { 1413 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1414 struct net_device *dev = info->user_ptr[1]; 1415 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1416 struct ieee802154_llsec_params params; 1417 u32 changed = 0; 1418 int ret; 1419 1420 if (info->attrs[NL802154_ATTR_SEC_ENABLED]) { 1421 u8 enabled; 1422 1423 enabled = nla_get_u8(info->attrs[NL802154_ATTR_SEC_ENABLED]); 1424 if (enabled != 0 && enabled != 1) 1425 return -EINVAL; 1426 1427 params.enabled = nla_get_u8(info->attrs[NL802154_ATTR_SEC_ENABLED]); 1428 changed |= IEEE802154_LLSEC_PARAM_ENABLED; 1429 } 1430 1431 if (info->attrs[NL802154_ATTR_SEC_OUT_KEY_ID]) { 1432 ret = ieee802154_llsec_parse_key_id(info->attrs[NL802154_ATTR_SEC_OUT_KEY_ID], 1433 ¶ms.out_key); 1434 if (ret < 0) 1435 return ret; 1436 1437 changed |= IEEE802154_LLSEC_PARAM_OUT_KEY; 1438 } 1439 1440 if (info->attrs[NL802154_ATTR_SEC_OUT_LEVEL]) { 1441 params.out_level = nla_get_u32(info->attrs[NL802154_ATTR_SEC_OUT_LEVEL]); 1442 if (params.out_level > NL802154_SECLEVEL_MAX) 1443 return -EINVAL; 1444 1445 changed |= IEEE802154_LLSEC_PARAM_OUT_LEVEL; 1446 } 1447 1448 if (info->attrs[NL802154_ATTR_SEC_FRAME_COUNTER]) { 1449 params.frame_counter = nla_get_be32(info->attrs[NL802154_ATTR_SEC_FRAME_COUNTER]); 1450 changed |= IEEE802154_LLSEC_PARAM_FRAME_COUNTER; 1451 } 1452 1453 return rdev_set_llsec_params(rdev, wpan_dev, ¶ms, changed); 1454 } 1455 1456 static int nl802154_send_key(struct sk_buff *msg, u32 cmd, u32 portid, 1457 u32 seq, int flags, 1458 struct cfg802154_registered_device *rdev, 1459 struct net_device *dev, 1460 const struct ieee802154_llsec_key_entry *key) 1461 { 1462 void *hdr; 1463 u32 commands[NL802154_CMD_FRAME_NR_IDS / 32]; 1464 struct nlattr *nl_key, *nl_key_id; 1465 1466 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd); 1467 if (!hdr) 1468 return -1; 1469 1470 if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex)) 1471 goto nla_put_failure; 1472 1473 nl_key = nla_nest_start(msg, NL802154_ATTR_SEC_KEY); 1474 if (!nl_key) 1475 goto nla_put_failure; 1476 1477 nl_key_id = nla_nest_start(msg, NL802154_KEY_ATTR_ID); 1478 if (!nl_key_id) 1479 goto nla_put_failure; 1480 1481 if (ieee802154_llsec_send_key_id(msg, &key->id) < 0) 1482 goto nla_put_failure; 1483 1484 nla_nest_end(msg, nl_key_id); 1485 1486 if (nla_put_u8(msg, NL802154_KEY_ATTR_USAGE_FRAMES, 1487 key->key->frame_types)) 1488 goto nla_put_failure; 1489 1490 if (key->key->frame_types & BIT(NL802154_FRAME_CMD)) { 1491 /* TODO for each nested */ 1492 memset(commands, 0, sizeof(commands)); 1493 commands[7] = key->key->cmd_frame_ids; 1494 if (nla_put(msg, NL802154_KEY_ATTR_USAGE_CMDS, 1495 sizeof(commands), commands)) 1496 goto nla_put_failure; 1497 } 1498 1499 if (nla_put(msg, NL802154_KEY_ATTR_BYTES, NL802154_KEY_SIZE, 1500 key->key->key)) 1501 goto nla_put_failure; 1502 1503 nla_nest_end(msg, nl_key); 1504 genlmsg_end(msg, hdr); 1505 1506 return 0; 1507 1508 nla_put_failure: 1509 genlmsg_cancel(msg, hdr); 1510 return -EMSGSIZE; 1511 } 1512 1513 static int 1514 nl802154_dump_llsec_key(struct sk_buff *skb, struct netlink_callback *cb) 1515 { 1516 struct cfg802154_registered_device *rdev = NULL; 1517 struct ieee802154_llsec_key_entry *key; 1518 struct ieee802154_llsec_table *table; 1519 struct wpan_dev *wpan_dev; 1520 int err; 1521 1522 err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev); 1523 if (err) 1524 return err; 1525 1526 if (!wpan_dev->netdev) { 1527 err = -EINVAL; 1528 goto out_err; 1529 } 1530 1531 rdev_lock_llsec_table(rdev, wpan_dev); 1532 rdev_get_llsec_table(rdev, wpan_dev, &table); 1533 1534 /* TODO make it like station dump */ 1535 if (cb->args[2]) 1536 goto out; 1537 1538 list_for_each_entry(key, &table->keys, list) { 1539 if (nl802154_send_key(skb, NL802154_CMD_NEW_SEC_KEY, 1540 NETLINK_CB(cb->skb).portid, 1541 cb->nlh->nlmsg_seq, NLM_F_MULTI, 1542 rdev, wpan_dev->netdev, key) < 0) { 1543 /* TODO */ 1544 err = -EIO; 1545 rdev_unlock_llsec_table(rdev, wpan_dev); 1546 goto out_err; 1547 } 1548 } 1549 1550 cb->args[2] = 1; 1551 1552 out: 1553 rdev_unlock_llsec_table(rdev, wpan_dev); 1554 err = skb->len; 1555 out_err: 1556 nl802154_finish_wpan_dev_dump(rdev); 1557 1558 return err; 1559 } 1560 1561 static const struct nla_policy nl802154_key_policy[NL802154_KEY_ATTR_MAX + 1] = { 1562 [NL802154_KEY_ATTR_ID] = { NLA_NESTED }, 1563 /* TODO handle it as for_each_nested and NLA_FLAG? */ 1564 [NL802154_KEY_ATTR_USAGE_FRAMES] = { NLA_U8 }, 1565 /* TODO handle it as for_each_nested, not static array? */ 1566 [NL802154_KEY_ATTR_USAGE_CMDS] = { .len = NL802154_CMD_FRAME_NR_IDS / 8 }, 1567 [NL802154_KEY_ATTR_BYTES] = { .len = NL802154_KEY_SIZE }, 1568 }; 1569 1570 static int nl802154_add_llsec_key(struct sk_buff *skb, struct genl_info *info) 1571 { 1572 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1573 struct net_device *dev = info->user_ptr[1]; 1574 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1575 struct nlattr *attrs[NL802154_KEY_ATTR_MAX + 1]; 1576 struct ieee802154_llsec_key key = { }; 1577 struct ieee802154_llsec_key_id id = { }; 1578 u32 commands[NL802154_CMD_FRAME_NR_IDS / 32] = { }; 1579 1580 if (nla_parse_nested(attrs, NL802154_KEY_ATTR_MAX, 1581 info->attrs[NL802154_ATTR_SEC_KEY], 1582 nl802154_key_policy)) 1583 return -EINVAL; 1584 1585 if (!attrs[NL802154_KEY_ATTR_USAGE_FRAMES] || 1586 !attrs[NL802154_KEY_ATTR_BYTES]) 1587 return -EINVAL; 1588 1589 if (ieee802154_llsec_parse_key_id(attrs[NL802154_KEY_ATTR_ID], &id) < 0) 1590 return -ENOBUFS; 1591 1592 key.frame_types = nla_get_u8(attrs[NL802154_KEY_ATTR_USAGE_FRAMES]); 1593 if (key.frame_types > BIT(NL802154_FRAME_MAX) || 1594 ((key.frame_types & BIT(NL802154_FRAME_CMD)) && 1595 !attrs[NL802154_KEY_ATTR_USAGE_CMDS])) 1596 return -EINVAL; 1597 1598 if (attrs[NL802154_KEY_ATTR_USAGE_CMDS]) { 1599 /* TODO for each nested */ 1600 nla_memcpy(commands, attrs[NL802154_KEY_ATTR_USAGE_CMDS], 1601 NL802154_CMD_FRAME_NR_IDS / 8); 1602 1603 /* TODO understand the -EINVAL logic here? last condition */ 1604 if (commands[0] || commands[1] || commands[2] || commands[3] || 1605 commands[4] || commands[5] || commands[6] || 1606 commands[7] > BIT(NL802154_CMD_FRAME_MAX)) 1607 return -EINVAL; 1608 1609 key.cmd_frame_ids = commands[7]; 1610 } else { 1611 key.cmd_frame_ids = 0; 1612 } 1613 1614 nla_memcpy(key.key, attrs[NL802154_KEY_ATTR_BYTES], NL802154_KEY_SIZE); 1615 1616 if (ieee802154_llsec_parse_key_id(attrs[NL802154_KEY_ATTR_ID], &id) < 0) 1617 return -ENOBUFS; 1618 1619 return rdev_add_llsec_key(rdev, wpan_dev, &id, &key); 1620 } 1621 1622 static int nl802154_del_llsec_key(struct sk_buff *skb, struct genl_info *info) 1623 { 1624 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1625 struct net_device *dev = info->user_ptr[1]; 1626 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1627 struct nlattr *attrs[NL802154_KEY_ATTR_MAX + 1]; 1628 struct ieee802154_llsec_key_id id; 1629 1630 if (nla_parse_nested(attrs, NL802154_KEY_ATTR_MAX, 1631 info->attrs[NL802154_ATTR_SEC_KEY], 1632 nl802154_key_policy)) 1633 return -EINVAL; 1634 1635 if (ieee802154_llsec_parse_key_id(attrs[NL802154_KEY_ATTR_ID], &id) < 0) 1636 return -ENOBUFS; 1637 1638 return rdev_del_llsec_key(rdev, wpan_dev, &id); 1639 } 1640 1641 static int nl802154_send_device(struct sk_buff *msg, u32 cmd, u32 portid, 1642 u32 seq, int flags, 1643 struct cfg802154_registered_device *rdev, 1644 struct net_device *dev, 1645 const struct ieee802154_llsec_device *dev_desc) 1646 { 1647 void *hdr; 1648 struct nlattr *nl_device; 1649 1650 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd); 1651 if (!hdr) 1652 return -1; 1653 1654 if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex)) 1655 goto nla_put_failure; 1656 1657 nl_device = nla_nest_start(msg, NL802154_ATTR_SEC_DEVICE); 1658 if (!nl_device) 1659 goto nla_put_failure; 1660 1661 if (nla_put_u32(msg, NL802154_DEV_ATTR_FRAME_COUNTER, 1662 dev_desc->frame_counter) || 1663 nla_put_le16(msg, NL802154_DEV_ATTR_PAN_ID, dev_desc->pan_id) || 1664 nla_put_le16(msg, NL802154_DEV_ATTR_SHORT_ADDR, 1665 dev_desc->short_addr) || 1666 nla_put_le64(msg, NL802154_DEV_ATTR_EXTENDED_ADDR, 1667 dev_desc->hwaddr, NL802154_DEV_ATTR_PAD) || 1668 nla_put_u8(msg, NL802154_DEV_ATTR_SECLEVEL_EXEMPT, 1669 dev_desc->seclevel_exempt) || 1670 nla_put_u32(msg, NL802154_DEV_ATTR_KEY_MODE, dev_desc->key_mode)) 1671 goto nla_put_failure; 1672 1673 nla_nest_end(msg, nl_device); 1674 genlmsg_end(msg, hdr); 1675 1676 return 0; 1677 1678 nla_put_failure: 1679 genlmsg_cancel(msg, hdr); 1680 return -EMSGSIZE; 1681 } 1682 1683 static int 1684 nl802154_dump_llsec_dev(struct sk_buff *skb, struct netlink_callback *cb) 1685 { 1686 struct cfg802154_registered_device *rdev = NULL; 1687 struct ieee802154_llsec_device *dev; 1688 struct ieee802154_llsec_table *table; 1689 struct wpan_dev *wpan_dev; 1690 int err; 1691 1692 err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev); 1693 if (err) 1694 return err; 1695 1696 if (!wpan_dev->netdev) { 1697 err = -EINVAL; 1698 goto out_err; 1699 } 1700 1701 rdev_lock_llsec_table(rdev, wpan_dev); 1702 rdev_get_llsec_table(rdev, wpan_dev, &table); 1703 1704 /* TODO make it like station dump */ 1705 if (cb->args[2]) 1706 goto out; 1707 1708 list_for_each_entry(dev, &table->devices, list) { 1709 if (nl802154_send_device(skb, NL802154_CMD_NEW_SEC_LEVEL, 1710 NETLINK_CB(cb->skb).portid, 1711 cb->nlh->nlmsg_seq, NLM_F_MULTI, 1712 rdev, wpan_dev->netdev, dev) < 0) { 1713 /* TODO */ 1714 err = -EIO; 1715 rdev_unlock_llsec_table(rdev, wpan_dev); 1716 goto out_err; 1717 } 1718 } 1719 1720 cb->args[2] = 1; 1721 1722 out: 1723 rdev_unlock_llsec_table(rdev, wpan_dev); 1724 err = skb->len; 1725 out_err: 1726 nl802154_finish_wpan_dev_dump(rdev); 1727 1728 return err; 1729 } 1730 1731 static const struct nla_policy nl802154_dev_policy[NL802154_DEV_ATTR_MAX + 1] = { 1732 [NL802154_DEV_ATTR_FRAME_COUNTER] = { NLA_U32 }, 1733 [NL802154_DEV_ATTR_PAN_ID] = { .type = NLA_U16 }, 1734 [NL802154_DEV_ATTR_SHORT_ADDR] = { .type = NLA_U16 }, 1735 [NL802154_DEV_ATTR_EXTENDED_ADDR] = { .type = NLA_U64 }, 1736 [NL802154_DEV_ATTR_SECLEVEL_EXEMPT] = { NLA_U8 }, 1737 [NL802154_DEV_ATTR_KEY_MODE] = { NLA_U32 }, 1738 }; 1739 1740 static int 1741 ieee802154_llsec_parse_device(struct nlattr *nla, 1742 struct ieee802154_llsec_device *dev) 1743 { 1744 struct nlattr *attrs[NL802154_DEV_ATTR_MAX + 1]; 1745 1746 if (!nla || nla_parse_nested(attrs, NL802154_DEV_ATTR_MAX, nla, 1747 nl802154_dev_policy)) 1748 return -EINVAL; 1749 1750 memset(dev, 0, sizeof(*dev)); 1751 1752 if (!attrs[NL802154_DEV_ATTR_FRAME_COUNTER] || 1753 !attrs[NL802154_DEV_ATTR_PAN_ID] || 1754 !attrs[NL802154_DEV_ATTR_SHORT_ADDR] || 1755 !attrs[NL802154_DEV_ATTR_EXTENDED_ADDR] || 1756 !attrs[NL802154_DEV_ATTR_SECLEVEL_EXEMPT] || 1757 !attrs[NL802154_DEV_ATTR_KEY_MODE]) 1758 return -EINVAL; 1759 1760 /* TODO be32 */ 1761 dev->frame_counter = nla_get_u32(attrs[NL802154_DEV_ATTR_FRAME_COUNTER]); 1762 dev->pan_id = nla_get_le16(attrs[NL802154_DEV_ATTR_PAN_ID]); 1763 dev->short_addr = nla_get_le16(attrs[NL802154_DEV_ATTR_SHORT_ADDR]); 1764 /* TODO rename hwaddr to extended_addr */ 1765 dev->hwaddr = nla_get_le64(attrs[NL802154_DEV_ATTR_EXTENDED_ADDR]); 1766 dev->seclevel_exempt = nla_get_u8(attrs[NL802154_DEV_ATTR_SECLEVEL_EXEMPT]); 1767 dev->key_mode = nla_get_u32(attrs[NL802154_DEV_ATTR_KEY_MODE]); 1768 1769 if (dev->key_mode > NL802154_DEVKEY_MAX || 1770 (dev->seclevel_exempt != 0 && dev->seclevel_exempt != 1)) 1771 return -EINVAL; 1772 1773 return 0; 1774 } 1775 1776 static int nl802154_add_llsec_dev(struct sk_buff *skb, struct genl_info *info) 1777 { 1778 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1779 struct net_device *dev = info->user_ptr[1]; 1780 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1781 struct ieee802154_llsec_device dev_desc; 1782 1783 if (ieee802154_llsec_parse_device(info->attrs[NL802154_ATTR_SEC_DEVICE], 1784 &dev_desc) < 0) 1785 return -EINVAL; 1786 1787 return rdev_add_device(rdev, wpan_dev, &dev_desc); 1788 } 1789 1790 static int nl802154_del_llsec_dev(struct sk_buff *skb, struct genl_info *info) 1791 { 1792 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1793 struct net_device *dev = info->user_ptr[1]; 1794 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1795 struct nlattr *attrs[NL802154_DEV_ATTR_MAX + 1]; 1796 __le64 extended_addr; 1797 1798 if (nla_parse_nested(attrs, NL802154_DEV_ATTR_MAX, 1799 info->attrs[NL802154_ATTR_SEC_DEVICE], 1800 nl802154_dev_policy)) 1801 return -EINVAL; 1802 1803 if (!attrs[NL802154_DEV_ATTR_EXTENDED_ADDR]) 1804 return -EINVAL; 1805 1806 extended_addr = nla_get_le64(attrs[NL802154_DEV_ATTR_EXTENDED_ADDR]); 1807 return rdev_del_device(rdev, wpan_dev, extended_addr); 1808 } 1809 1810 static int nl802154_send_devkey(struct sk_buff *msg, u32 cmd, u32 portid, 1811 u32 seq, int flags, 1812 struct cfg802154_registered_device *rdev, 1813 struct net_device *dev, __le64 extended_addr, 1814 const struct ieee802154_llsec_device_key *devkey) 1815 { 1816 void *hdr; 1817 struct nlattr *nl_devkey, *nl_key_id; 1818 1819 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd); 1820 if (!hdr) 1821 return -1; 1822 1823 if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex)) 1824 goto nla_put_failure; 1825 1826 nl_devkey = nla_nest_start(msg, NL802154_ATTR_SEC_DEVKEY); 1827 if (!nl_devkey) 1828 goto nla_put_failure; 1829 1830 if (nla_put_le64(msg, NL802154_DEVKEY_ATTR_EXTENDED_ADDR, 1831 extended_addr, NL802154_DEVKEY_ATTR_PAD) || 1832 nla_put_u32(msg, NL802154_DEVKEY_ATTR_FRAME_COUNTER, 1833 devkey->frame_counter)) 1834 goto nla_put_failure; 1835 1836 nl_key_id = nla_nest_start(msg, NL802154_DEVKEY_ATTR_ID); 1837 if (!nl_key_id) 1838 goto nla_put_failure; 1839 1840 if (ieee802154_llsec_send_key_id(msg, &devkey->key_id) < 0) 1841 goto nla_put_failure; 1842 1843 nla_nest_end(msg, nl_key_id); 1844 nla_nest_end(msg, nl_devkey); 1845 genlmsg_end(msg, hdr); 1846 1847 return 0; 1848 1849 nla_put_failure: 1850 genlmsg_cancel(msg, hdr); 1851 return -EMSGSIZE; 1852 } 1853 1854 static int 1855 nl802154_dump_llsec_devkey(struct sk_buff *skb, struct netlink_callback *cb) 1856 { 1857 struct cfg802154_registered_device *rdev = NULL; 1858 struct ieee802154_llsec_device_key *kpos; 1859 struct ieee802154_llsec_device *dpos; 1860 struct ieee802154_llsec_table *table; 1861 struct wpan_dev *wpan_dev; 1862 int err; 1863 1864 err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev); 1865 if (err) 1866 return err; 1867 1868 if (!wpan_dev->netdev) { 1869 err = -EINVAL; 1870 goto out_err; 1871 } 1872 1873 rdev_lock_llsec_table(rdev, wpan_dev); 1874 rdev_get_llsec_table(rdev, wpan_dev, &table); 1875 1876 /* TODO make it like station dump */ 1877 if (cb->args[2]) 1878 goto out; 1879 1880 /* TODO look if remove devkey and do some nested attribute */ 1881 list_for_each_entry(dpos, &table->devices, list) { 1882 list_for_each_entry(kpos, &dpos->keys, list) { 1883 if (nl802154_send_devkey(skb, 1884 NL802154_CMD_NEW_SEC_LEVEL, 1885 NETLINK_CB(cb->skb).portid, 1886 cb->nlh->nlmsg_seq, 1887 NLM_F_MULTI, rdev, 1888 wpan_dev->netdev, 1889 dpos->hwaddr, 1890 kpos) < 0) { 1891 /* TODO */ 1892 err = -EIO; 1893 rdev_unlock_llsec_table(rdev, wpan_dev); 1894 goto out_err; 1895 } 1896 } 1897 } 1898 1899 cb->args[2] = 1; 1900 1901 out: 1902 rdev_unlock_llsec_table(rdev, wpan_dev); 1903 err = skb->len; 1904 out_err: 1905 nl802154_finish_wpan_dev_dump(rdev); 1906 1907 return err; 1908 } 1909 1910 static const struct nla_policy nl802154_devkey_policy[NL802154_DEVKEY_ATTR_MAX + 1] = { 1911 [NL802154_DEVKEY_ATTR_FRAME_COUNTER] = { NLA_U32 }, 1912 [NL802154_DEVKEY_ATTR_EXTENDED_ADDR] = { NLA_U64 }, 1913 [NL802154_DEVKEY_ATTR_ID] = { NLA_NESTED }, 1914 }; 1915 1916 static int nl802154_add_llsec_devkey(struct sk_buff *skb, struct genl_info *info) 1917 { 1918 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1919 struct net_device *dev = info->user_ptr[1]; 1920 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1921 struct nlattr *attrs[NL802154_DEVKEY_ATTR_MAX + 1]; 1922 struct ieee802154_llsec_device_key key; 1923 __le64 extended_addr; 1924 1925 if (!info->attrs[NL802154_ATTR_SEC_DEVKEY] || 1926 nla_parse_nested(attrs, NL802154_DEVKEY_ATTR_MAX, 1927 info->attrs[NL802154_ATTR_SEC_DEVKEY], 1928 nl802154_devkey_policy) < 0) 1929 return -EINVAL; 1930 1931 if (!attrs[NL802154_DEVKEY_ATTR_FRAME_COUNTER] || 1932 !attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR]) 1933 return -EINVAL; 1934 1935 /* TODO change key.id ? */ 1936 if (ieee802154_llsec_parse_key_id(attrs[NL802154_DEVKEY_ATTR_ID], 1937 &key.key_id) < 0) 1938 return -ENOBUFS; 1939 1940 /* TODO be32 */ 1941 key.frame_counter = nla_get_u32(attrs[NL802154_DEVKEY_ATTR_FRAME_COUNTER]); 1942 /* TODO change naming hwaddr -> extended_addr 1943 * check unique identifier short+pan OR extended_addr 1944 */ 1945 extended_addr = nla_get_le64(attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR]); 1946 return rdev_add_devkey(rdev, wpan_dev, extended_addr, &key); 1947 } 1948 1949 static int nl802154_del_llsec_devkey(struct sk_buff *skb, struct genl_info *info) 1950 { 1951 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1952 struct net_device *dev = info->user_ptr[1]; 1953 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1954 struct nlattr *attrs[NL802154_DEVKEY_ATTR_MAX + 1]; 1955 struct ieee802154_llsec_device_key key; 1956 __le64 extended_addr; 1957 1958 if (nla_parse_nested(attrs, NL802154_DEVKEY_ATTR_MAX, 1959 info->attrs[NL802154_ATTR_SEC_DEVKEY], 1960 nl802154_devkey_policy)) 1961 return -EINVAL; 1962 1963 if (!attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR]) 1964 return -EINVAL; 1965 1966 /* TODO change key.id ? */ 1967 if (ieee802154_llsec_parse_key_id(attrs[NL802154_DEVKEY_ATTR_ID], 1968 &key.key_id) < 0) 1969 return -ENOBUFS; 1970 1971 /* TODO change naming hwaddr -> extended_addr 1972 * check unique identifier short+pan OR extended_addr 1973 */ 1974 extended_addr = nla_get_le64(attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR]); 1975 return rdev_del_devkey(rdev, wpan_dev, extended_addr, &key); 1976 } 1977 1978 static int nl802154_send_seclevel(struct sk_buff *msg, u32 cmd, u32 portid, 1979 u32 seq, int flags, 1980 struct cfg802154_registered_device *rdev, 1981 struct net_device *dev, 1982 const struct ieee802154_llsec_seclevel *sl) 1983 { 1984 void *hdr; 1985 struct nlattr *nl_seclevel; 1986 1987 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd); 1988 if (!hdr) 1989 return -1; 1990 1991 if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex)) 1992 goto nla_put_failure; 1993 1994 nl_seclevel = nla_nest_start(msg, NL802154_ATTR_SEC_LEVEL); 1995 if (!nl_seclevel) 1996 goto nla_put_failure; 1997 1998 if (nla_put_u32(msg, NL802154_SECLEVEL_ATTR_FRAME, sl->frame_type) || 1999 nla_put_u32(msg, NL802154_SECLEVEL_ATTR_LEVELS, sl->sec_levels) || 2000 nla_put_u8(msg, NL802154_SECLEVEL_ATTR_DEV_OVERRIDE, 2001 sl->device_override)) 2002 goto nla_put_failure; 2003 2004 if (sl->frame_type == NL802154_FRAME_CMD) { 2005 if (nla_put_u32(msg, NL802154_SECLEVEL_ATTR_CMD_FRAME, 2006 sl->cmd_frame_id)) 2007 goto nla_put_failure; 2008 } 2009 2010 nla_nest_end(msg, nl_seclevel); 2011 genlmsg_end(msg, hdr); 2012 2013 return 0; 2014 2015 nla_put_failure: 2016 genlmsg_cancel(msg, hdr); 2017 return -EMSGSIZE; 2018 } 2019 2020 static int 2021 nl802154_dump_llsec_seclevel(struct sk_buff *skb, struct netlink_callback *cb) 2022 { 2023 struct cfg802154_registered_device *rdev = NULL; 2024 struct ieee802154_llsec_seclevel *sl; 2025 struct ieee802154_llsec_table *table; 2026 struct wpan_dev *wpan_dev; 2027 int err; 2028 2029 err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev); 2030 if (err) 2031 return err; 2032 2033 if (!wpan_dev->netdev) { 2034 err = -EINVAL; 2035 goto out_err; 2036 } 2037 2038 rdev_lock_llsec_table(rdev, wpan_dev); 2039 rdev_get_llsec_table(rdev, wpan_dev, &table); 2040 2041 /* TODO make it like station dump */ 2042 if (cb->args[2]) 2043 goto out; 2044 2045 list_for_each_entry(sl, &table->security_levels, list) { 2046 if (nl802154_send_seclevel(skb, NL802154_CMD_NEW_SEC_LEVEL, 2047 NETLINK_CB(cb->skb).portid, 2048 cb->nlh->nlmsg_seq, NLM_F_MULTI, 2049 rdev, wpan_dev->netdev, sl) < 0) { 2050 /* TODO */ 2051 err = -EIO; 2052 rdev_unlock_llsec_table(rdev, wpan_dev); 2053 goto out_err; 2054 } 2055 } 2056 2057 cb->args[2] = 1; 2058 2059 out: 2060 rdev_unlock_llsec_table(rdev, wpan_dev); 2061 err = skb->len; 2062 out_err: 2063 nl802154_finish_wpan_dev_dump(rdev); 2064 2065 return err; 2066 } 2067 2068 static const struct nla_policy nl802154_seclevel_policy[NL802154_SECLEVEL_ATTR_MAX + 1] = { 2069 [NL802154_SECLEVEL_ATTR_LEVELS] = { .type = NLA_U8 }, 2070 [NL802154_SECLEVEL_ATTR_FRAME] = { .type = NLA_U32 }, 2071 [NL802154_SECLEVEL_ATTR_CMD_FRAME] = { .type = NLA_U32 }, 2072 [NL802154_SECLEVEL_ATTR_DEV_OVERRIDE] = { .type = NLA_U8 }, 2073 }; 2074 2075 static int 2076 llsec_parse_seclevel(struct nlattr *nla, struct ieee802154_llsec_seclevel *sl) 2077 { 2078 struct nlattr *attrs[NL802154_SECLEVEL_ATTR_MAX + 1]; 2079 2080 if (!nla || nla_parse_nested(attrs, NL802154_SECLEVEL_ATTR_MAX, nla, 2081 nl802154_seclevel_policy)) 2082 return -EINVAL; 2083 2084 memset(sl, 0, sizeof(*sl)); 2085 2086 if (!attrs[NL802154_SECLEVEL_ATTR_LEVELS] || 2087 !attrs[NL802154_SECLEVEL_ATTR_FRAME] || 2088 !attrs[NL802154_SECLEVEL_ATTR_DEV_OVERRIDE]) 2089 return -EINVAL; 2090 2091 sl->sec_levels = nla_get_u8(attrs[NL802154_SECLEVEL_ATTR_LEVELS]); 2092 sl->frame_type = nla_get_u32(attrs[NL802154_SECLEVEL_ATTR_FRAME]); 2093 sl->device_override = nla_get_u8(attrs[NL802154_SECLEVEL_ATTR_DEV_OVERRIDE]); 2094 if (sl->frame_type > NL802154_FRAME_MAX || 2095 (sl->device_override != 0 && sl->device_override != 1)) 2096 return -EINVAL; 2097 2098 if (sl->frame_type == NL802154_FRAME_CMD) { 2099 if (!attrs[NL802154_SECLEVEL_ATTR_CMD_FRAME]) 2100 return -EINVAL; 2101 2102 sl->cmd_frame_id = nla_get_u32(attrs[NL802154_SECLEVEL_ATTR_CMD_FRAME]); 2103 if (sl->cmd_frame_id > NL802154_CMD_FRAME_MAX) 2104 return -EINVAL; 2105 } 2106 2107 return 0; 2108 } 2109 2110 static int nl802154_add_llsec_seclevel(struct sk_buff *skb, 2111 struct genl_info *info) 2112 { 2113 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 2114 struct net_device *dev = info->user_ptr[1]; 2115 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 2116 struct ieee802154_llsec_seclevel sl; 2117 2118 if (llsec_parse_seclevel(info->attrs[NL802154_ATTR_SEC_LEVEL], 2119 &sl) < 0) 2120 return -EINVAL; 2121 2122 return rdev_add_seclevel(rdev, wpan_dev, &sl); 2123 } 2124 2125 static int nl802154_del_llsec_seclevel(struct sk_buff *skb, 2126 struct genl_info *info) 2127 { 2128 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 2129 struct net_device *dev = info->user_ptr[1]; 2130 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 2131 struct ieee802154_llsec_seclevel sl; 2132 2133 if (!info->attrs[NL802154_ATTR_SEC_LEVEL] || 2134 llsec_parse_seclevel(info->attrs[NL802154_ATTR_SEC_LEVEL], 2135 &sl) < 0) 2136 return -EINVAL; 2137 2138 return rdev_del_seclevel(rdev, wpan_dev, &sl); 2139 } 2140 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */ 2141 2142 #define NL802154_FLAG_NEED_WPAN_PHY 0x01 2143 #define NL802154_FLAG_NEED_NETDEV 0x02 2144 #define NL802154_FLAG_NEED_RTNL 0x04 2145 #define NL802154_FLAG_CHECK_NETDEV_UP 0x08 2146 #define NL802154_FLAG_NEED_NETDEV_UP (NL802154_FLAG_NEED_NETDEV |\ 2147 NL802154_FLAG_CHECK_NETDEV_UP) 2148 #define NL802154_FLAG_NEED_WPAN_DEV 0x10 2149 #define NL802154_FLAG_NEED_WPAN_DEV_UP (NL802154_FLAG_NEED_WPAN_DEV |\ 2150 NL802154_FLAG_CHECK_NETDEV_UP) 2151 2152 static int nl802154_pre_doit(const struct genl_ops *ops, struct sk_buff *skb, 2153 struct genl_info *info) 2154 { 2155 struct cfg802154_registered_device *rdev; 2156 struct wpan_dev *wpan_dev; 2157 struct net_device *dev; 2158 bool rtnl = ops->internal_flags & NL802154_FLAG_NEED_RTNL; 2159 2160 if (rtnl) 2161 rtnl_lock(); 2162 2163 if (ops->internal_flags & NL802154_FLAG_NEED_WPAN_PHY) { 2164 rdev = cfg802154_get_dev_from_info(genl_info_net(info), info); 2165 if (IS_ERR(rdev)) { 2166 if (rtnl) 2167 rtnl_unlock(); 2168 return PTR_ERR(rdev); 2169 } 2170 info->user_ptr[0] = rdev; 2171 } else if (ops->internal_flags & NL802154_FLAG_NEED_NETDEV || 2172 ops->internal_flags & NL802154_FLAG_NEED_WPAN_DEV) { 2173 ASSERT_RTNL(); 2174 wpan_dev = __cfg802154_wpan_dev_from_attrs(genl_info_net(info), 2175 info->attrs); 2176 if (IS_ERR(wpan_dev)) { 2177 if (rtnl) 2178 rtnl_unlock(); 2179 return PTR_ERR(wpan_dev); 2180 } 2181 2182 dev = wpan_dev->netdev; 2183 rdev = wpan_phy_to_rdev(wpan_dev->wpan_phy); 2184 2185 if (ops->internal_flags & NL802154_FLAG_NEED_NETDEV) { 2186 if (!dev) { 2187 if (rtnl) 2188 rtnl_unlock(); 2189 return -EINVAL; 2190 } 2191 2192 info->user_ptr[1] = dev; 2193 } else { 2194 info->user_ptr[1] = wpan_dev; 2195 } 2196 2197 if (dev) { 2198 if (ops->internal_flags & NL802154_FLAG_CHECK_NETDEV_UP && 2199 !netif_running(dev)) { 2200 if (rtnl) 2201 rtnl_unlock(); 2202 return -ENETDOWN; 2203 } 2204 2205 dev_hold(dev); 2206 } 2207 2208 info->user_ptr[0] = rdev; 2209 } 2210 2211 return 0; 2212 } 2213 2214 static void nl802154_post_doit(const struct genl_ops *ops, struct sk_buff *skb, 2215 struct genl_info *info) 2216 { 2217 if (info->user_ptr[1]) { 2218 if (ops->internal_flags & NL802154_FLAG_NEED_WPAN_DEV) { 2219 struct wpan_dev *wpan_dev = info->user_ptr[1]; 2220 2221 if (wpan_dev->netdev) 2222 dev_put(wpan_dev->netdev); 2223 } else { 2224 dev_put(info->user_ptr[1]); 2225 } 2226 } 2227 2228 if (ops->internal_flags & NL802154_FLAG_NEED_RTNL) 2229 rtnl_unlock(); 2230 } 2231 2232 static const struct genl_ops nl802154_ops[] = { 2233 { 2234 .cmd = NL802154_CMD_GET_WPAN_PHY, 2235 .doit = nl802154_get_wpan_phy, 2236 .dumpit = nl802154_dump_wpan_phy, 2237 .done = nl802154_dump_wpan_phy_done, 2238 .policy = nl802154_policy, 2239 /* can be retrieved by unprivileged users */ 2240 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY | 2241 NL802154_FLAG_NEED_RTNL, 2242 }, 2243 { 2244 .cmd = NL802154_CMD_GET_INTERFACE, 2245 .doit = nl802154_get_interface, 2246 .dumpit = nl802154_dump_interface, 2247 .policy = nl802154_policy, 2248 /* can be retrieved by unprivileged users */ 2249 .internal_flags = NL802154_FLAG_NEED_WPAN_DEV | 2250 NL802154_FLAG_NEED_RTNL, 2251 }, 2252 { 2253 .cmd = NL802154_CMD_NEW_INTERFACE, 2254 .doit = nl802154_new_interface, 2255 .policy = nl802154_policy, 2256 .flags = GENL_ADMIN_PERM, 2257 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY | 2258 NL802154_FLAG_NEED_RTNL, 2259 }, 2260 { 2261 .cmd = NL802154_CMD_DEL_INTERFACE, 2262 .doit = nl802154_del_interface, 2263 .policy = nl802154_policy, 2264 .flags = GENL_ADMIN_PERM, 2265 .internal_flags = NL802154_FLAG_NEED_WPAN_DEV | 2266 NL802154_FLAG_NEED_RTNL, 2267 }, 2268 { 2269 .cmd = NL802154_CMD_SET_CHANNEL, 2270 .doit = nl802154_set_channel, 2271 .policy = nl802154_policy, 2272 .flags = GENL_ADMIN_PERM, 2273 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY | 2274 NL802154_FLAG_NEED_RTNL, 2275 }, 2276 { 2277 .cmd = NL802154_CMD_SET_CCA_MODE, 2278 .doit = nl802154_set_cca_mode, 2279 .policy = nl802154_policy, 2280 .flags = GENL_ADMIN_PERM, 2281 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY | 2282 NL802154_FLAG_NEED_RTNL, 2283 }, 2284 { 2285 .cmd = NL802154_CMD_SET_CCA_ED_LEVEL, 2286 .doit = nl802154_set_cca_ed_level, 2287 .policy = nl802154_policy, 2288 .flags = GENL_ADMIN_PERM, 2289 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY | 2290 NL802154_FLAG_NEED_RTNL, 2291 }, 2292 { 2293 .cmd = NL802154_CMD_SET_TX_POWER, 2294 .doit = nl802154_set_tx_power, 2295 .policy = nl802154_policy, 2296 .flags = GENL_ADMIN_PERM, 2297 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY | 2298 NL802154_FLAG_NEED_RTNL, 2299 }, 2300 { 2301 .cmd = NL802154_CMD_SET_WPAN_PHY_NETNS, 2302 .doit = nl802154_wpan_phy_netns, 2303 .policy = nl802154_policy, 2304 .flags = GENL_ADMIN_PERM, 2305 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY | 2306 NL802154_FLAG_NEED_RTNL, 2307 }, 2308 { 2309 .cmd = NL802154_CMD_SET_PAN_ID, 2310 .doit = nl802154_set_pan_id, 2311 .policy = nl802154_policy, 2312 .flags = GENL_ADMIN_PERM, 2313 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2314 NL802154_FLAG_NEED_RTNL, 2315 }, 2316 { 2317 .cmd = NL802154_CMD_SET_SHORT_ADDR, 2318 .doit = nl802154_set_short_addr, 2319 .policy = nl802154_policy, 2320 .flags = GENL_ADMIN_PERM, 2321 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2322 NL802154_FLAG_NEED_RTNL, 2323 }, 2324 { 2325 .cmd = NL802154_CMD_SET_BACKOFF_EXPONENT, 2326 .doit = nl802154_set_backoff_exponent, 2327 .policy = nl802154_policy, 2328 .flags = GENL_ADMIN_PERM, 2329 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2330 NL802154_FLAG_NEED_RTNL, 2331 }, 2332 { 2333 .cmd = NL802154_CMD_SET_MAX_CSMA_BACKOFFS, 2334 .doit = nl802154_set_max_csma_backoffs, 2335 .policy = nl802154_policy, 2336 .flags = GENL_ADMIN_PERM, 2337 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2338 NL802154_FLAG_NEED_RTNL, 2339 }, 2340 { 2341 .cmd = NL802154_CMD_SET_MAX_FRAME_RETRIES, 2342 .doit = nl802154_set_max_frame_retries, 2343 .policy = nl802154_policy, 2344 .flags = GENL_ADMIN_PERM, 2345 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2346 NL802154_FLAG_NEED_RTNL, 2347 }, 2348 { 2349 .cmd = NL802154_CMD_SET_LBT_MODE, 2350 .doit = nl802154_set_lbt_mode, 2351 .policy = nl802154_policy, 2352 .flags = GENL_ADMIN_PERM, 2353 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2354 NL802154_FLAG_NEED_RTNL, 2355 }, 2356 { 2357 .cmd = NL802154_CMD_SET_ACKREQ_DEFAULT, 2358 .doit = nl802154_set_ackreq_default, 2359 .policy = nl802154_policy, 2360 .flags = GENL_ADMIN_PERM, 2361 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2362 NL802154_FLAG_NEED_RTNL, 2363 }, 2364 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL 2365 { 2366 .cmd = NL802154_CMD_SET_SEC_PARAMS, 2367 .doit = nl802154_set_llsec_params, 2368 .policy = nl802154_policy, 2369 .flags = GENL_ADMIN_PERM, 2370 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2371 NL802154_FLAG_NEED_RTNL, 2372 }, 2373 { 2374 .cmd = NL802154_CMD_GET_SEC_KEY, 2375 /* TODO .doit by matching key id? */ 2376 .dumpit = nl802154_dump_llsec_key, 2377 .policy = nl802154_policy, 2378 .flags = GENL_ADMIN_PERM, 2379 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2380 NL802154_FLAG_NEED_RTNL, 2381 }, 2382 { 2383 .cmd = NL802154_CMD_NEW_SEC_KEY, 2384 .doit = nl802154_add_llsec_key, 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_DEL_SEC_KEY, 2392 .doit = nl802154_del_llsec_key, 2393 .policy = nl802154_policy, 2394 .flags = GENL_ADMIN_PERM, 2395 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2396 NL802154_FLAG_NEED_RTNL, 2397 }, 2398 /* TODO unique identifier must short+pan OR extended_addr */ 2399 { 2400 .cmd = NL802154_CMD_GET_SEC_DEV, 2401 /* TODO .doit by matching extended_addr? */ 2402 .dumpit = nl802154_dump_llsec_dev, 2403 .policy = nl802154_policy, 2404 .flags = GENL_ADMIN_PERM, 2405 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2406 NL802154_FLAG_NEED_RTNL, 2407 }, 2408 { 2409 .cmd = NL802154_CMD_NEW_SEC_DEV, 2410 .doit = nl802154_add_llsec_dev, 2411 .policy = nl802154_policy, 2412 .flags = GENL_ADMIN_PERM, 2413 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2414 NL802154_FLAG_NEED_RTNL, 2415 }, 2416 { 2417 .cmd = NL802154_CMD_DEL_SEC_DEV, 2418 .doit = nl802154_del_llsec_dev, 2419 .policy = nl802154_policy, 2420 .flags = GENL_ADMIN_PERM, 2421 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2422 NL802154_FLAG_NEED_RTNL, 2423 }, 2424 /* TODO remove complete devkey, put it as nested? */ 2425 { 2426 .cmd = NL802154_CMD_GET_SEC_DEVKEY, 2427 /* TODO doit by matching ??? */ 2428 .dumpit = nl802154_dump_llsec_devkey, 2429 .policy = nl802154_policy, 2430 .flags = GENL_ADMIN_PERM, 2431 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2432 NL802154_FLAG_NEED_RTNL, 2433 }, 2434 { 2435 .cmd = NL802154_CMD_NEW_SEC_DEVKEY, 2436 .doit = nl802154_add_llsec_devkey, 2437 .policy = nl802154_policy, 2438 .flags = GENL_ADMIN_PERM, 2439 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2440 NL802154_FLAG_NEED_RTNL, 2441 }, 2442 { 2443 .cmd = NL802154_CMD_DEL_SEC_DEVKEY, 2444 .doit = nl802154_del_llsec_devkey, 2445 .policy = nl802154_policy, 2446 .flags = GENL_ADMIN_PERM, 2447 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2448 NL802154_FLAG_NEED_RTNL, 2449 }, 2450 { 2451 .cmd = NL802154_CMD_GET_SEC_LEVEL, 2452 /* TODO .doit by matching frame_type? */ 2453 .dumpit = nl802154_dump_llsec_seclevel, 2454 .policy = nl802154_policy, 2455 .flags = GENL_ADMIN_PERM, 2456 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2457 NL802154_FLAG_NEED_RTNL, 2458 }, 2459 { 2460 .cmd = NL802154_CMD_NEW_SEC_LEVEL, 2461 .doit = nl802154_add_llsec_seclevel, 2462 .policy = nl802154_policy, 2463 .flags = GENL_ADMIN_PERM, 2464 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2465 NL802154_FLAG_NEED_RTNL, 2466 }, 2467 { 2468 .cmd = NL802154_CMD_DEL_SEC_LEVEL, 2469 /* TODO match frame_type only? */ 2470 .doit = nl802154_del_llsec_seclevel, 2471 .policy = nl802154_policy, 2472 .flags = GENL_ADMIN_PERM, 2473 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2474 NL802154_FLAG_NEED_RTNL, 2475 }, 2476 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */ 2477 }; 2478 2479 /* initialisation/exit functions */ 2480 int nl802154_init(void) 2481 { 2482 return genl_register_family_with_ops_groups(&nl802154_fam, nl802154_ops, 2483 nl802154_mcgrps); 2484 } 2485 2486 void nl802154_exit(void) 2487 { 2488 genl_unregister_family(&nl802154_fam); 2489 } 2490