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 /* the netlink family */ 30 static struct genl_family nl802154_fam; 31 32 /* multicast groups */ 33 enum nl802154_multicast_groups { 34 NL802154_MCGRP_CONFIG, 35 }; 36 37 static const struct genl_multicast_group nl802154_mcgrps[] = { 38 [NL802154_MCGRP_CONFIG] = { .name = "config", }, 39 }; 40 41 /* returns ERR_PTR values */ 42 static struct wpan_dev * 43 __cfg802154_wpan_dev_from_attrs(struct net *netns, struct nlattr **attrs) 44 { 45 struct cfg802154_registered_device *rdev; 46 struct wpan_dev *result = NULL; 47 bool have_ifidx = attrs[NL802154_ATTR_IFINDEX]; 48 bool have_wpan_dev_id = attrs[NL802154_ATTR_WPAN_DEV]; 49 u64 wpan_dev_id; 50 int wpan_phy_idx = -1; 51 int ifidx = -1; 52 53 ASSERT_RTNL(); 54 55 if (!have_ifidx && !have_wpan_dev_id) 56 return ERR_PTR(-EINVAL); 57 58 if (have_ifidx) 59 ifidx = nla_get_u32(attrs[NL802154_ATTR_IFINDEX]); 60 if (have_wpan_dev_id) { 61 wpan_dev_id = nla_get_u64(attrs[NL802154_ATTR_WPAN_DEV]); 62 wpan_phy_idx = wpan_dev_id >> 32; 63 } 64 65 list_for_each_entry(rdev, &cfg802154_rdev_list, list) { 66 struct wpan_dev *wpan_dev; 67 68 if (wpan_phy_net(&rdev->wpan_phy) != netns) 69 continue; 70 71 if (have_wpan_dev_id && rdev->wpan_phy_idx != wpan_phy_idx) 72 continue; 73 74 list_for_each_entry(wpan_dev, &rdev->wpan_dev_list, list) { 75 if (have_ifidx && wpan_dev->netdev && 76 wpan_dev->netdev->ifindex == ifidx) { 77 result = wpan_dev; 78 break; 79 } 80 if (have_wpan_dev_id && 81 wpan_dev->identifier == (u32)wpan_dev_id) { 82 result = wpan_dev; 83 break; 84 } 85 } 86 87 if (result) 88 break; 89 } 90 91 if (result) 92 return result; 93 94 return ERR_PTR(-ENODEV); 95 } 96 97 static struct cfg802154_registered_device * 98 __cfg802154_rdev_from_attrs(struct net *netns, struct nlattr **attrs) 99 { 100 struct cfg802154_registered_device *rdev = NULL, *tmp; 101 struct net_device *netdev; 102 103 ASSERT_RTNL(); 104 105 if (!attrs[NL802154_ATTR_WPAN_PHY] && 106 !attrs[NL802154_ATTR_IFINDEX] && 107 !attrs[NL802154_ATTR_WPAN_DEV]) 108 return ERR_PTR(-EINVAL); 109 110 if (attrs[NL802154_ATTR_WPAN_PHY]) 111 rdev = cfg802154_rdev_by_wpan_phy_idx( 112 nla_get_u32(attrs[NL802154_ATTR_WPAN_PHY])); 113 114 if (attrs[NL802154_ATTR_WPAN_DEV]) { 115 u64 wpan_dev_id = nla_get_u64(attrs[NL802154_ATTR_WPAN_DEV]); 116 struct wpan_dev *wpan_dev; 117 bool found = false; 118 119 tmp = cfg802154_rdev_by_wpan_phy_idx(wpan_dev_id >> 32); 120 if (tmp) { 121 /* make sure wpan_dev exists */ 122 list_for_each_entry(wpan_dev, &tmp->wpan_dev_list, list) { 123 if (wpan_dev->identifier != (u32)wpan_dev_id) 124 continue; 125 found = true; 126 break; 127 } 128 129 if (!found) 130 tmp = NULL; 131 132 if (rdev && tmp != rdev) 133 return ERR_PTR(-EINVAL); 134 rdev = tmp; 135 } 136 } 137 138 if (attrs[NL802154_ATTR_IFINDEX]) { 139 int ifindex = nla_get_u32(attrs[NL802154_ATTR_IFINDEX]); 140 141 netdev = __dev_get_by_index(netns, ifindex); 142 if (netdev) { 143 if (netdev->ieee802154_ptr) 144 tmp = wpan_phy_to_rdev( 145 netdev->ieee802154_ptr->wpan_phy); 146 else 147 tmp = NULL; 148 149 /* not wireless device -- return error */ 150 if (!tmp) 151 return ERR_PTR(-EINVAL); 152 153 /* mismatch -- return error */ 154 if (rdev && tmp != rdev) 155 return ERR_PTR(-EINVAL); 156 157 rdev = tmp; 158 } 159 } 160 161 if (!rdev) 162 return ERR_PTR(-ENODEV); 163 164 if (netns != wpan_phy_net(&rdev->wpan_phy)) 165 return ERR_PTR(-ENODEV); 166 167 return rdev; 168 } 169 170 /* This function returns a pointer to the driver 171 * that the genl_info item that is passed refers to. 172 * 173 * The result of this can be a PTR_ERR and hence must 174 * be checked with IS_ERR() for errors. 175 */ 176 static struct cfg802154_registered_device * 177 cfg802154_get_dev_from_info(struct net *netns, struct genl_info *info) 178 { 179 return __cfg802154_rdev_from_attrs(netns, info->attrs); 180 } 181 182 /* policy for the attributes */ 183 static const struct nla_policy nl802154_policy[NL802154_ATTR_MAX+1] = { 184 [NL802154_ATTR_WPAN_PHY] = { .type = NLA_U32 }, 185 [NL802154_ATTR_WPAN_PHY_NAME] = { .type = NLA_NUL_STRING, 186 .len = 20-1 }, 187 188 [NL802154_ATTR_IFINDEX] = { .type = NLA_U32 }, 189 [NL802154_ATTR_IFTYPE] = { .type = NLA_U32 }, 190 [NL802154_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 }, 191 192 [NL802154_ATTR_WPAN_DEV] = { .type = NLA_U64 }, 193 194 [NL802154_ATTR_PAGE] = { .type = NLA_U8, }, 195 [NL802154_ATTR_CHANNEL] = { .type = NLA_U8, }, 196 197 [NL802154_ATTR_TX_POWER] = { .type = NLA_S32, }, 198 199 [NL802154_ATTR_CCA_MODE] = { .type = NLA_U32, }, 200 [NL802154_ATTR_CCA_OPT] = { .type = NLA_U32, }, 201 [NL802154_ATTR_CCA_ED_LEVEL] = { .type = NLA_S32, }, 202 203 [NL802154_ATTR_SUPPORTED_CHANNEL] = { .type = NLA_U32, }, 204 205 [NL802154_ATTR_PAN_ID] = { .type = NLA_U16, }, 206 [NL802154_ATTR_EXTENDED_ADDR] = { .type = NLA_U64 }, 207 [NL802154_ATTR_SHORT_ADDR] = { .type = NLA_U16, }, 208 209 [NL802154_ATTR_MIN_BE] = { .type = NLA_U8, }, 210 [NL802154_ATTR_MAX_BE] = { .type = NLA_U8, }, 211 [NL802154_ATTR_MAX_CSMA_BACKOFFS] = { .type = NLA_U8, }, 212 213 [NL802154_ATTR_MAX_FRAME_RETRIES] = { .type = NLA_S8, }, 214 215 [NL802154_ATTR_LBT_MODE] = { .type = NLA_U8, }, 216 217 [NL802154_ATTR_WPAN_PHY_CAPS] = { .type = NLA_NESTED }, 218 219 [NL802154_ATTR_SUPPORTED_COMMANDS] = { .type = NLA_NESTED }, 220 221 [NL802154_ATTR_ACKREQ_DEFAULT] = { .type = NLA_U8 }, 222 223 [NL802154_ATTR_PID] = { .type = NLA_U32 }, 224 [NL802154_ATTR_NETNS_FD] = { .type = NLA_U32 }, 225 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL 226 [NL802154_ATTR_SEC_ENABLED] = { .type = NLA_U8, }, 227 [NL802154_ATTR_SEC_OUT_LEVEL] = { .type = NLA_U32, }, 228 [NL802154_ATTR_SEC_OUT_KEY_ID] = { .type = NLA_NESTED, }, 229 [NL802154_ATTR_SEC_FRAME_COUNTER] = { .type = NLA_U32 }, 230 231 [NL802154_ATTR_SEC_LEVEL] = { .type = NLA_NESTED }, 232 [NL802154_ATTR_SEC_DEVICE] = { .type = NLA_NESTED }, 233 [NL802154_ATTR_SEC_DEVKEY] = { .type = NLA_NESTED }, 234 [NL802154_ATTR_SEC_KEY] = { .type = NLA_NESTED }, 235 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */ 236 }; 237 238 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL 239 static int 240 nl802154_prepare_wpan_dev_dump(struct sk_buff *skb, 241 struct netlink_callback *cb, 242 struct cfg802154_registered_device **rdev, 243 struct wpan_dev **wpan_dev) 244 { 245 int err; 246 247 rtnl_lock(); 248 249 if (!cb->args[0]) { 250 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl802154_fam.hdrsize, 251 genl_family_attrbuf(&nl802154_fam), 252 nl802154_fam.maxattr, nl802154_policy, NULL); 253 if (err) 254 goto out_unlock; 255 256 *wpan_dev = __cfg802154_wpan_dev_from_attrs(sock_net(skb->sk), 257 genl_family_attrbuf(&nl802154_fam)); 258 if (IS_ERR(*wpan_dev)) { 259 err = PTR_ERR(*wpan_dev); 260 goto out_unlock; 261 } 262 *rdev = wpan_phy_to_rdev((*wpan_dev)->wpan_phy); 263 /* 0 is the first index - add 1 to parse only once */ 264 cb->args[0] = (*rdev)->wpan_phy_idx + 1; 265 cb->args[1] = (*wpan_dev)->identifier; 266 } else { 267 /* subtract the 1 again here */ 268 struct wpan_phy *wpan_phy = wpan_phy_idx_to_wpan_phy(cb->args[0] - 1); 269 struct wpan_dev *tmp; 270 271 if (!wpan_phy) { 272 err = -ENODEV; 273 goto out_unlock; 274 } 275 *rdev = wpan_phy_to_rdev(wpan_phy); 276 *wpan_dev = NULL; 277 278 list_for_each_entry(tmp, &(*rdev)->wpan_dev_list, list) { 279 if (tmp->identifier == cb->args[1]) { 280 *wpan_dev = tmp; 281 break; 282 } 283 } 284 285 if (!*wpan_dev) { 286 err = -ENODEV; 287 goto out_unlock; 288 } 289 } 290 291 return 0; 292 out_unlock: 293 rtnl_unlock(); 294 return err; 295 } 296 297 static void 298 nl802154_finish_wpan_dev_dump(struct cfg802154_registered_device *rdev) 299 { 300 rtnl_unlock(); 301 } 302 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */ 303 304 /* message building helper */ 305 static inline void *nl802154hdr_put(struct sk_buff *skb, u32 portid, u32 seq, 306 int flags, u8 cmd) 307 { 308 /* since there is no private header just add the generic one */ 309 return genlmsg_put(skb, portid, seq, &nl802154_fam, flags, cmd); 310 } 311 312 static int 313 nl802154_put_flags(struct sk_buff *msg, int attr, u32 mask) 314 { 315 struct nlattr *nl_flags = nla_nest_start(msg, attr); 316 int i; 317 318 if (!nl_flags) 319 return -ENOBUFS; 320 321 i = 0; 322 while (mask) { 323 if ((mask & 1) && nla_put_flag(msg, i)) 324 return -ENOBUFS; 325 326 mask >>= 1; 327 i++; 328 } 329 330 nla_nest_end(msg, nl_flags); 331 return 0; 332 } 333 334 static int 335 nl802154_send_wpan_phy_channels(struct cfg802154_registered_device *rdev, 336 struct sk_buff *msg) 337 { 338 struct nlattr *nl_page; 339 unsigned long page; 340 341 nl_page = nla_nest_start(msg, NL802154_ATTR_CHANNELS_SUPPORTED); 342 if (!nl_page) 343 return -ENOBUFS; 344 345 for (page = 0; page <= IEEE802154_MAX_PAGE; page++) { 346 if (nla_put_u32(msg, NL802154_ATTR_SUPPORTED_CHANNEL, 347 rdev->wpan_phy.supported.channels[page])) 348 return -ENOBUFS; 349 } 350 nla_nest_end(msg, nl_page); 351 352 return 0; 353 } 354 355 static int 356 nl802154_put_capabilities(struct sk_buff *msg, 357 struct cfg802154_registered_device *rdev) 358 { 359 const struct wpan_phy_supported *caps = &rdev->wpan_phy.supported; 360 struct nlattr *nl_caps, *nl_channels; 361 int i; 362 363 nl_caps = nla_nest_start(msg, NL802154_ATTR_WPAN_PHY_CAPS); 364 if (!nl_caps) 365 return -ENOBUFS; 366 367 nl_channels = nla_nest_start(msg, NL802154_CAP_ATTR_CHANNELS); 368 if (!nl_channels) 369 return -ENOBUFS; 370 371 for (i = 0; i <= IEEE802154_MAX_PAGE; i++) { 372 if (caps->channels[i]) { 373 if (nl802154_put_flags(msg, i, caps->channels[i])) 374 return -ENOBUFS; 375 } 376 } 377 378 nla_nest_end(msg, nl_channels); 379 380 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL) { 381 struct nlattr *nl_ed_lvls; 382 383 nl_ed_lvls = nla_nest_start(msg, 384 NL802154_CAP_ATTR_CCA_ED_LEVELS); 385 if (!nl_ed_lvls) 386 return -ENOBUFS; 387 388 for (i = 0; i < caps->cca_ed_levels_size; i++) { 389 if (nla_put_s32(msg, i, caps->cca_ed_levels[i])) 390 return -ENOBUFS; 391 } 392 393 nla_nest_end(msg, nl_ed_lvls); 394 } 395 396 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER) { 397 struct nlattr *nl_tx_pwrs; 398 399 nl_tx_pwrs = nla_nest_start(msg, NL802154_CAP_ATTR_TX_POWERS); 400 if (!nl_tx_pwrs) 401 return -ENOBUFS; 402 403 for (i = 0; i < caps->tx_powers_size; i++) { 404 if (nla_put_s32(msg, i, caps->tx_powers[i])) 405 return -ENOBUFS; 406 } 407 408 nla_nest_end(msg, nl_tx_pwrs); 409 } 410 411 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE) { 412 if (nl802154_put_flags(msg, NL802154_CAP_ATTR_CCA_MODES, 413 caps->cca_modes) || 414 nl802154_put_flags(msg, NL802154_CAP_ATTR_CCA_OPTS, 415 caps->cca_opts)) 416 return -ENOBUFS; 417 } 418 419 if (nla_put_u8(msg, NL802154_CAP_ATTR_MIN_MINBE, caps->min_minbe) || 420 nla_put_u8(msg, NL802154_CAP_ATTR_MAX_MINBE, caps->max_minbe) || 421 nla_put_u8(msg, NL802154_CAP_ATTR_MIN_MAXBE, caps->min_maxbe) || 422 nla_put_u8(msg, NL802154_CAP_ATTR_MAX_MAXBE, caps->max_maxbe) || 423 nla_put_u8(msg, NL802154_CAP_ATTR_MIN_CSMA_BACKOFFS, 424 caps->min_csma_backoffs) || 425 nla_put_u8(msg, NL802154_CAP_ATTR_MAX_CSMA_BACKOFFS, 426 caps->max_csma_backoffs) || 427 nla_put_s8(msg, NL802154_CAP_ATTR_MIN_FRAME_RETRIES, 428 caps->min_frame_retries) || 429 nla_put_s8(msg, NL802154_CAP_ATTR_MAX_FRAME_RETRIES, 430 caps->max_frame_retries) || 431 nl802154_put_flags(msg, NL802154_CAP_ATTR_IFTYPES, 432 caps->iftypes) || 433 nla_put_u32(msg, NL802154_CAP_ATTR_LBT, caps->lbt)) 434 return -ENOBUFS; 435 436 nla_nest_end(msg, nl_caps); 437 438 return 0; 439 } 440 441 static int nl802154_send_wpan_phy(struct cfg802154_registered_device *rdev, 442 enum nl802154_commands cmd, 443 struct sk_buff *msg, u32 portid, u32 seq, 444 int flags) 445 { 446 struct nlattr *nl_cmds; 447 void *hdr; 448 int i; 449 450 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd); 451 if (!hdr) 452 return -ENOBUFS; 453 454 if (nla_put_u32(msg, NL802154_ATTR_WPAN_PHY, rdev->wpan_phy_idx) || 455 nla_put_string(msg, NL802154_ATTR_WPAN_PHY_NAME, 456 wpan_phy_name(&rdev->wpan_phy)) || 457 nla_put_u32(msg, NL802154_ATTR_GENERATION, 458 cfg802154_rdev_list_generation)) 459 goto nla_put_failure; 460 461 if (cmd != NL802154_CMD_NEW_WPAN_PHY) 462 goto finish; 463 464 /* DUMP PHY PIB */ 465 466 /* current channel settings */ 467 if (nla_put_u8(msg, NL802154_ATTR_PAGE, 468 rdev->wpan_phy.current_page) || 469 nla_put_u8(msg, NL802154_ATTR_CHANNEL, 470 rdev->wpan_phy.current_channel)) 471 goto nla_put_failure; 472 473 /* TODO remove this behaviour, we still keep support it for a while 474 * so users can change the behaviour to the new one. 475 */ 476 if (nl802154_send_wpan_phy_channels(rdev, msg)) 477 goto nla_put_failure; 478 479 /* cca mode */ 480 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE) { 481 if (nla_put_u32(msg, NL802154_ATTR_CCA_MODE, 482 rdev->wpan_phy.cca.mode)) 483 goto nla_put_failure; 484 485 if (rdev->wpan_phy.cca.mode == NL802154_CCA_ENERGY_CARRIER) { 486 if (nla_put_u32(msg, NL802154_ATTR_CCA_OPT, 487 rdev->wpan_phy.cca.opt)) 488 goto nla_put_failure; 489 } 490 } 491 492 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER) { 493 if (nla_put_s32(msg, NL802154_ATTR_TX_POWER, 494 rdev->wpan_phy.transmit_power)) 495 goto nla_put_failure; 496 } 497 498 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL) { 499 if (nla_put_s32(msg, NL802154_ATTR_CCA_ED_LEVEL, 500 rdev->wpan_phy.cca_ed_level)) 501 goto nla_put_failure; 502 } 503 504 if (nl802154_put_capabilities(msg, rdev)) 505 goto nla_put_failure; 506 507 nl_cmds = nla_nest_start(msg, NL802154_ATTR_SUPPORTED_COMMANDS); 508 if (!nl_cmds) 509 goto nla_put_failure; 510 511 i = 0; 512 #define CMD(op, n) \ 513 do { \ 514 if (rdev->ops->op) { \ 515 i++; \ 516 if (nla_put_u32(msg, i, NL802154_CMD_ ## n)) \ 517 goto nla_put_failure; \ 518 } \ 519 } while (0) 520 521 CMD(add_virtual_intf, NEW_INTERFACE); 522 CMD(del_virtual_intf, DEL_INTERFACE); 523 CMD(set_channel, SET_CHANNEL); 524 CMD(set_pan_id, SET_PAN_ID); 525 CMD(set_short_addr, SET_SHORT_ADDR); 526 CMD(set_backoff_exponent, SET_BACKOFF_EXPONENT); 527 CMD(set_max_csma_backoffs, SET_MAX_CSMA_BACKOFFS); 528 CMD(set_max_frame_retries, SET_MAX_FRAME_RETRIES); 529 CMD(set_lbt_mode, SET_LBT_MODE); 530 CMD(set_ackreq_default, SET_ACKREQ_DEFAULT); 531 532 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER) 533 CMD(set_tx_power, SET_TX_POWER); 534 535 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL) 536 CMD(set_cca_ed_level, SET_CCA_ED_LEVEL); 537 538 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE) 539 CMD(set_cca_mode, SET_CCA_MODE); 540 541 #undef CMD 542 nla_nest_end(msg, nl_cmds); 543 544 finish: 545 genlmsg_end(msg, hdr); 546 return 0; 547 548 nla_put_failure: 549 genlmsg_cancel(msg, hdr); 550 return -EMSGSIZE; 551 } 552 553 struct nl802154_dump_wpan_phy_state { 554 s64 filter_wpan_phy; 555 long start; 556 557 }; 558 559 static int nl802154_dump_wpan_phy_parse(struct sk_buff *skb, 560 struct netlink_callback *cb, 561 struct nl802154_dump_wpan_phy_state *state) 562 { 563 struct nlattr **tb = genl_family_attrbuf(&nl802154_fam); 564 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl802154_fam.hdrsize, tb, 565 nl802154_fam.maxattr, nl802154_policy, NULL); 566 567 /* TODO check if we can handle error here, 568 * we have no backward compatibility 569 */ 570 if (ret) 571 return 0; 572 573 if (tb[NL802154_ATTR_WPAN_PHY]) 574 state->filter_wpan_phy = nla_get_u32(tb[NL802154_ATTR_WPAN_PHY]); 575 if (tb[NL802154_ATTR_WPAN_DEV]) 576 state->filter_wpan_phy = nla_get_u64(tb[NL802154_ATTR_WPAN_DEV]) >> 32; 577 if (tb[NL802154_ATTR_IFINDEX]) { 578 struct net_device *netdev; 579 struct cfg802154_registered_device *rdev; 580 int ifidx = nla_get_u32(tb[NL802154_ATTR_IFINDEX]); 581 582 netdev = __dev_get_by_index(&init_net, ifidx); 583 if (!netdev) 584 return -ENODEV; 585 if (netdev->ieee802154_ptr) { 586 rdev = wpan_phy_to_rdev( 587 netdev->ieee802154_ptr->wpan_phy); 588 state->filter_wpan_phy = rdev->wpan_phy_idx; 589 } 590 } 591 592 return 0; 593 } 594 595 static int 596 nl802154_dump_wpan_phy(struct sk_buff *skb, struct netlink_callback *cb) 597 { 598 int idx = 0, ret; 599 struct nl802154_dump_wpan_phy_state *state = (void *)cb->args[0]; 600 struct cfg802154_registered_device *rdev; 601 602 rtnl_lock(); 603 if (!state) { 604 state = kzalloc(sizeof(*state), GFP_KERNEL); 605 if (!state) { 606 rtnl_unlock(); 607 return -ENOMEM; 608 } 609 state->filter_wpan_phy = -1; 610 ret = nl802154_dump_wpan_phy_parse(skb, cb, state); 611 if (ret) { 612 kfree(state); 613 rtnl_unlock(); 614 return ret; 615 } 616 cb->args[0] = (long)state; 617 } 618 619 list_for_each_entry(rdev, &cfg802154_rdev_list, list) { 620 if (!net_eq(wpan_phy_net(&rdev->wpan_phy), sock_net(skb->sk))) 621 continue; 622 if (++idx <= state->start) 623 continue; 624 if (state->filter_wpan_phy != -1 && 625 state->filter_wpan_phy != rdev->wpan_phy_idx) 626 continue; 627 /* attempt to fit multiple wpan_phy data chunks into the skb */ 628 ret = nl802154_send_wpan_phy(rdev, 629 NL802154_CMD_NEW_WPAN_PHY, 630 skb, 631 NETLINK_CB(cb->skb).portid, 632 cb->nlh->nlmsg_seq, NLM_F_MULTI); 633 if (ret < 0) { 634 if ((ret == -ENOBUFS || ret == -EMSGSIZE) && 635 !skb->len && cb->min_dump_alloc < 4096) { 636 cb->min_dump_alloc = 4096; 637 rtnl_unlock(); 638 return 1; 639 } 640 idx--; 641 break; 642 } 643 break; 644 } 645 rtnl_unlock(); 646 647 state->start = idx; 648 649 return skb->len; 650 } 651 652 static int nl802154_dump_wpan_phy_done(struct netlink_callback *cb) 653 { 654 kfree((void *)cb->args[0]); 655 return 0; 656 } 657 658 static int nl802154_get_wpan_phy(struct sk_buff *skb, struct genl_info *info) 659 { 660 struct sk_buff *msg; 661 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 662 663 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); 664 if (!msg) 665 return -ENOMEM; 666 667 if (nl802154_send_wpan_phy(rdev, NL802154_CMD_NEW_WPAN_PHY, msg, 668 info->snd_portid, info->snd_seq, 0) < 0) { 669 nlmsg_free(msg); 670 return -ENOBUFS; 671 } 672 673 return genlmsg_reply(msg, info); 674 } 675 676 static inline u64 wpan_dev_id(struct wpan_dev *wpan_dev) 677 { 678 return (u64)wpan_dev->identifier | 679 ((u64)wpan_phy_to_rdev(wpan_dev->wpan_phy)->wpan_phy_idx << 32); 680 } 681 682 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL 683 #include <net/ieee802154_netdev.h> 684 685 static int 686 ieee802154_llsec_send_key_id(struct sk_buff *msg, 687 const struct ieee802154_llsec_key_id *desc) 688 { 689 struct nlattr *nl_dev_addr; 690 691 if (nla_put_u32(msg, NL802154_KEY_ID_ATTR_MODE, desc->mode)) 692 return -ENOBUFS; 693 694 switch (desc->mode) { 695 case NL802154_KEY_ID_MODE_IMPLICIT: 696 nl_dev_addr = nla_nest_start(msg, NL802154_KEY_ID_ATTR_IMPLICIT); 697 if (!nl_dev_addr) 698 return -ENOBUFS; 699 700 if (nla_put_le16(msg, NL802154_DEV_ADDR_ATTR_PAN_ID, 701 desc->device_addr.pan_id) || 702 nla_put_u32(msg, NL802154_DEV_ADDR_ATTR_MODE, 703 desc->device_addr.mode)) 704 return -ENOBUFS; 705 706 switch (desc->device_addr.mode) { 707 case NL802154_DEV_ADDR_SHORT: 708 if (nla_put_le16(msg, NL802154_DEV_ADDR_ATTR_SHORT, 709 desc->device_addr.short_addr)) 710 return -ENOBUFS; 711 break; 712 case NL802154_DEV_ADDR_EXTENDED: 713 if (nla_put_le64(msg, NL802154_DEV_ADDR_ATTR_EXTENDED, 714 desc->device_addr.extended_addr, 715 NL802154_DEV_ADDR_ATTR_PAD)) 716 return -ENOBUFS; 717 break; 718 default: 719 /* userspace should handle unknown */ 720 break; 721 } 722 723 nla_nest_end(msg, nl_dev_addr); 724 break; 725 case NL802154_KEY_ID_MODE_INDEX: 726 break; 727 case NL802154_KEY_ID_MODE_INDEX_SHORT: 728 /* TODO renmae short_source? */ 729 if (nla_put_le32(msg, NL802154_KEY_ID_ATTR_SOURCE_SHORT, 730 desc->short_source)) 731 return -ENOBUFS; 732 break; 733 case NL802154_KEY_ID_MODE_INDEX_EXTENDED: 734 if (nla_put_le64(msg, NL802154_KEY_ID_ATTR_SOURCE_EXTENDED, 735 desc->extended_source, 736 NL802154_KEY_ID_ATTR_PAD)) 737 return -ENOBUFS; 738 break; 739 default: 740 /* userspace should handle unknown */ 741 break; 742 } 743 744 /* TODO key_id to key_idx ? Check naming */ 745 if (desc->mode != NL802154_KEY_ID_MODE_IMPLICIT) { 746 if (nla_put_u8(msg, NL802154_KEY_ID_ATTR_INDEX, desc->id)) 747 return -ENOBUFS; 748 } 749 750 return 0; 751 } 752 753 static int nl802154_get_llsec_params(struct sk_buff *msg, 754 struct cfg802154_registered_device *rdev, 755 struct wpan_dev *wpan_dev) 756 { 757 struct nlattr *nl_key_id; 758 struct ieee802154_llsec_params params; 759 int ret; 760 761 ret = rdev_get_llsec_params(rdev, wpan_dev, ¶ms); 762 if (ret < 0) 763 return ret; 764 765 if (nla_put_u8(msg, NL802154_ATTR_SEC_ENABLED, params.enabled) || 766 nla_put_u32(msg, NL802154_ATTR_SEC_OUT_LEVEL, params.out_level) || 767 nla_put_be32(msg, NL802154_ATTR_SEC_FRAME_COUNTER, 768 params.frame_counter)) 769 return -ENOBUFS; 770 771 nl_key_id = nla_nest_start(msg, NL802154_ATTR_SEC_OUT_KEY_ID); 772 if (!nl_key_id) 773 return -ENOBUFS; 774 775 ret = ieee802154_llsec_send_key_id(msg, ¶ms.out_key); 776 if (ret < 0) 777 return ret; 778 779 nla_nest_end(msg, nl_key_id); 780 781 return 0; 782 } 783 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */ 784 785 static int 786 nl802154_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags, 787 struct cfg802154_registered_device *rdev, 788 struct wpan_dev *wpan_dev) 789 { 790 struct net_device *dev = wpan_dev->netdev; 791 void *hdr; 792 793 hdr = nl802154hdr_put(msg, portid, seq, flags, 794 NL802154_CMD_NEW_INTERFACE); 795 if (!hdr) 796 return -1; 797 798 if (dev && 799 (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex) || 800 nla_put_string(msg, NL802154_ATTR_IFNAME, dev->name))) 801 goto nla_put_failure; 802 803 if (nla_put_u32(msg, NL802154_ATTR_WPAN_PHY, rdev->wpan_phy_idx) || 804 nla_put_u32(msg, NL802154_ATTR_IFTYPE, wpan_dev->iftype) || 805 nla_put_u64_64bit(msg, NL802154_ATTR_WPAN_DEV, 806 wpan_dev_id(wpan_dev), NL802154_ATTR_PAD) || 807 nla_put_u32(msg, NL802154_ATTR_GENERATION, 808 rdev->devlist_generation ^ 809 (cfg802154_rdev_list_generation << 2))) 810 goto nla_put_failure; 811 812 /* address settings */ 813 if (nla_put_le64(msg, NL802154_ATTR_EXTENDED_ADDR, 814 wpan_dev->extended_addr, 815 NL802154_ATTR_PAD) || 816 nla_put_le16(msg, NL802154_ATTR_SHORT_ADDR, 817 wpan_dev->short_addr) || 818 nla_put_le16(msg, NL802154_ATTR_PAN_ID, wpan_dev->pan_id)) 819 goto nla_put_failure; 820 821 /* ARET handling */ 822 if (nla_put_s8(msg, NL802154_ATTR_MAX_FRAME_RETRIES, 823 wpan_dev->frame_retries) || 824 nla_put_u8(msg, NL802154_ATTR_MAX_BE, wpan_dev->max_be) || 825 nla_put_u8(msg, NL802154_ATTR_MAX_CSMA_BACKOFFS, 826 wpan_dev->csma_retries) || 827 nla_put_u8(msg, NL802154_ATTR_MIN_BE, wpan_dev->min_be)) 828 goto nla_put_failure; 829 830 /* listen before transmit */ 831 if (nla_put_u8(msg, NL802154_ATTR_LBT_MODE, wpan_dev->lbt)) 832 goto nla_put_failure; 833 834 /* ackreq default behaviour */ 835 if (nla_put_u8(msg, NL802154_ATTR_ACKREQ_DEFAULT, wpan_dev->ackreq)) 836 goto nla_put_failure; 837 838 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL 839 if (nl802154_get_llsec_params(msg, rdev, wpan_dev) < 0) 840 goto nla_put_failure; 841 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */ 842 843 genlmsg_end(msg, hdr); 844 return 0; 845 846 nla_put_failure: 847 genlmsg_cancel(msg, hdr); 848 return -EMSGSIZE; 849 } 850 851 static int 852 nl802154_dump_interface(struct sk_buff *skb, struct netlink_callback *cb) 853 { 854 int wp_idx = 0; 855 int if_idx = 0; 856 int wp_start = cb->args[0]; 857 int if_start = cb->args[1]; 858 struct cfg802154_registered_device *rdev; 859 struct wpan_dev *wpan_dev; 860 861 rtnl_lock(); 862 list_for_each_entry(rdev, &cfg802154_rdev_list, list) { 863 if (!net_eq(wpan_phy_net(&rdev->wpan_phy), sock_net(skb->sk))) 864 continue; 865 if (wp_idx < wp_start) { 866 wp_idx++; 867 continue; 868 } 869 if_idx = 0; 870 871 list_for_each_entry(wpan_dev, &rdev->wpan_dev_list, list) { 872 if (if_idx < if_start) { 873 if_idx++; 874 continue; 875 } 876 if (nl802154_send_iface(skb, NETLINK_CB(cb->skb).portid, 877 cb->nlh->nlmsg_seq, NLM_F_MULTI, 878 rdev, wpan_dev) < 0) { 879 goto out; 880 } 881 if_idx++; 882 } 883 884 wp_idx++; 885 } 886 out: 887 rtnl_unlock(); 888 889 cb->args[0] = wp_idx; 890 cb->args[1] = if_idx; 891 892 return skb->len; 893 } 894 895 static int nl802154_get_interface(struct sk_buff *skb, struct genl_info *info) 896 { 897 struct sk_buff *msg; 898 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 899 struct wpan_dev *wdev = info->user_ptr[1]; 900 901 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); 902 if (!msg) 903 return -ENOMEM; 904 905 if (nl802154_send_iface(msg, info->snd_portid, info->snd_seq, 0, 906 rdev, wdev) < 0) { 907 nlmsg_free(msg); 908 return -ENOBUFS; 909 } 910 911 return genlmsg_reply(msg, info); 912 } 913 914 static int nl802154_new_interface(struct sk_buff *skb, struct genl_info *info) 915 { 916 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 917 enum nl802154_iftype type = NL802154_IFTYPE_UNSPEC; 918 __le64 extended_addr = cpu_to_le64(0x0000000000000000ULL); 919 920 /* TODO avoid failing a new interface 921 * creation due to pending removal? 922 */ 923 924 if (!info->attrs[NL802154_ATTR_IFNAME]) 925 return -EINVAL; 926 927 if (info->attrs[NL802154_ATTR_IFTYPE]) { 928 type = nla_get_u32(info->attrs[NL802154_ATTR_IFTYPE]); 929 if (type > NL802154_IFTYPE_MAX || 930 !(rdev->wpan_phy.supported.iftypes & BIT(type))) 931 return -EINVAL; 932 } 933 934 if (info->attrs[NL802154_ATTR_EXTENDED_ADDR]) 935 extended_addr = nla_get_le64(info->attrs[NL802154_ATTR_EXTENDED_ADDR]); 936 937 if (!rdev->ops->add_virtual_intf) 938 return -EOPNOTSUPP; 939 940 return rdev_add_virtual_intf(rdev, 941 nla_data(info->attrs[NL802154_ATTR_IFNAME]), 942 NET_NAME_USER, type, extended_addr); 943 } 944 945 static int nl802154_del_interface(struct sk_buff *skb, struct genl_info *info) 946 { 947 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 948 struct wpan_dev *wpan_dev = info->user_ptr[1]; 949 950 if (!rdev->ops->del_virtual_intf) 951 return -EOPNOTSUPP; 952 953 /* If we remove a wpan device without a netdev then clear 954 * user_ptr[1] so that nl802154_post_doit won't dereference it 955 * to check if it needs to do dev_put(). Otherwise it crashes 956 * since the wpan_dev has been freed, unlike with a netdev where 957 * we need the dev_put() for the netdev to really be freed. 958 */ 959 if (!wpan_dev->netdev) 960 info->user_ptr[1] = NULL; 961 962 return rdev_del_virtual_intf(rdev, wpan_dev); 963 } 964 965 static int nl802154_set_channel(struct sk_buff *skb, struct genl_info *info) 966 { 967 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 968 u8 channel, page; 969 970 if (!info->attrs[NL802154_ATTR_PAGE] || 971 !info->attrs[NL802154_ATTR_CHANNEL]) 972 return -EINVAL; 973 974 page = nla_get_u8(info->attrs[NL802154_ATTR_PAGE]); 975 channel = nla_get_u8(info->attrs[NL802154_ATTR_CHANNEL]); 976 977 /* check 802.15.4 constraints */ 978 if (page > IEEE802154_MAX_PAGE || channel > IEEE802154_MAX_CHANNEL || 979 !(rdev->wpan_phy.supported.channels[page] & BIT(channel))) 980 return -EINVAL; 981 982 return rdev_set_channel(rdev, page, channel); 983 } 984 985 static int nl802154_set_cca_mode(struct sk_buff *skb, struct genl_info *info) 986 { 987 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 988 struct wpan_phy_cca cca; 989 990 if (!(rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE)) 991 return -EOPNOTSUPP; 992 993 if (!info->attrs[NL802154_ATTR_CCA_MODE]) 994 return -EINVAL; 995 996 cca.mode = nla_get_u32(info->attrs[NL802154_ATTR_CCA_MODE]); 997 /* checking 802.15.4 constraints */ 998 if (cca.mode < NL802154_CCA_ENERGY || 999 cca.mode > NL802154_CCA_ATTR_MAX || 1000 !(rdev->wpan_phy.supported.cca_modes & BIT(cca.mode))) 1001 return -EINVAL; 1002 1003 if (cca.mode == NL802154_CCA_ENERGY_CARRIER) { 1004 if (!info->attrs[NL802154_ATTR_CCA_OPT]) 1005 return -EINVAL; 1006 1007 cca.opt = nla_get_u32(info->attrs[NL802154_ATTR_CCA_OPT]); 1008 if (cca.opt > NL802154_CCA_OPT_ATTR_MAX || 1009 !(rdev->wpan_phy.supported.cca_opts & BIT(cca.opt))) 1010 return -EINVAL; 1011 } 1012 1013 return rdev_set_cca_mode(rdev, &cca); 1014 } 1015 1016 static int nl802154_set_cca_ed_level(struct sk_buff *skb, struct genl_info *info) 1017 { 1018 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1019 s32 ed_level; 1020 int i; 1021 1022 if (!(rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL)) 1023 return -EOPNOTSUPP; 1024 1025 if (!info->attrs[NL802154_ATTR_CCA_ED_LEVEL]) 1026 return -EINVAL; 1027 1028 ed_level = nla_get_s32(info->attrs[NL802154_ATTR_CCA_ED_LEVEL]); 1029 1030 for (i = 0; i < rdev->wpan_phy.supported.cca_ed_levels_size; i++) { 1031 if (ed_level == rdev->wpan_phy.supported.cca_ed_levels[i]) 1032 return rdev_set_cca_ed_level(rdev, ed_level); 1033 } 1034 1035 return -EINVAL; 1036 } 1037 1038 static int nl802154_set_tx_power(struct sk_buff *skb, struct genl_info *info) 1039 { 1040 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1041 s32 power; 1042 int i; 1043 1044 if (!(rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER)) 1045 return -EOPNOTSUPP; 1046 1047 if (!info->attrs[NL802154_ATTR_TX_POWER]) 1048 return -EINVAL; 1049 1050 power = nla_get_s32(info->attrs[NL802154_ATTR_TX_POWER]); 1051 1052 for (i = 0; i < rdev->wpan_phy.supported.tx_powers_size; i++) { 1053 if (power == rdev->wpan_phy.supported.tx_powers[i]) 1054 return rdev_set_tx_power(rdev, power); 1055 } 1056 1057 return -EINVAL; 1058 } 1059 1060 static int nl802154_set_pan_id(struct sk_buff *skb, struct genl_info *info) 1061 { 1062 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1063 struct net_device *dev = info->user_ptr[1]; 1064 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1065 __le16 pan_id; 1066 1067 /* conflict here while tx/rx calls */ 1068 if (netif_running(dev)) 1069 return -EBUSY; 1070 1071 if (wpan_dev->lowpan_dev) { 1072 if (netif_running(wpan_dev->lowpan_dev)) 1073 return -EBUSY; 1074 } 1075 1076 /* don't change address fields on monitor */ 1077 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR || 1078 !info->attrs[NL802154_ATTR_PAN_ID]) 1079 return -EINVAL; 1080 1081 pan_id = nla_get_le16(info->attrs[NL802154_ATTR_PAN_ID]); 1082 1083 /* TODO 1084 * I am not sure about to check here on broadcast pan_id. 1085 * Broadcast is a valid setting, comment from 802.15.4: 1086 * If this value is 0xffff, the device is not associated. 1087 * 1088 * This could useful to simple deassociate an device. 1089 */ 1090 if (pan_id == cpu_to_le16(IEEE802154_PAN_ID_BROADCAST)) 1091 return -EINVAL; 1092 1093 return rdev_set_pan_id(rdev, wpan_dev, pan_id); 1094 } 1095 1096 static int nl802154_set_short_addr(struct sk_buff *skb, struct genl_info *info) 1097 { 1098 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1099 struct net_device *dev = info->user_ptr[1]; 1100 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1101 __le16 short_addr; 1102 1103 /* conflict here while tx/rx calls */ 1104 if (netif_running(dev)) 1105 return -EBUSY; 1106 1107 if (wpan_dev->lowpan_dev) { 1108 if (netif_running(wpan_dev->lowpan_dev)) 1109 return -EBUSY; 1110 } 1111 1112 /* don't change address fields on monitor */ 1113 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR || 1114 !info->attrs[NL802154_ATTR_SHORT_ADDR]) 1115 return -EINVAL; 1116 1117 short_addr = nla_get_le16(info->attrs[NL802154_ATTR_SHORT_ADDR]); 1118 1119 /* TODO 1120 * I am not sure about to check here on broadcast short_addr. 1121 * Broadcast is a valid setting, comment from 802.15.4: 1122 * A value of 0xfffe indicates that the device has 1123 * associated but has not been allocated an address. A 1124 * value of 0xffff indicates that the device does not 1125 * have a short address. 1126 * 1127 * I think we should allow to set these settings but 1128 * don't allow to allow socket communication with it. 1129 */ 1130 if (short_addr == cpu_to_le16(IEEE802154_ADDR_SHORT_UNSPEC) || 1131 short_addr == cpu_to_le16(IEEE802154_ADDR_SHORT_BROADCAST)) 1132 return -EINVAL; 1133 1134 return rdev_set_short_addr(rdev, wpan_dev, short_addr); 1135 } 1136 1137 static int 1138 nl802154_set_backoff_exponent(struct sk_buff *skb, struct genl_info *info) 1139 { 1140 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1141 struct net_device *dev = info->user_ptr[1]; 1142 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1143 u8 min_be, max_be; 1144 1145 /* should be set on netif open inside phy settings */ 1146 if (netif_running(dev)) 1147 return -EBUSY; 1148 1149 if (!info->attrs[NL802154_ATTR_MIN_BE] || 1150 !info->attrs[NL802154_ATTR_MAX_BE]) 1151 return -EINVAL; 1152 1153 min_be = nla_get_u8(info->attrs[NL802154_ATTR_MIN_BE]); 1154 max_be = nla_get_u8(info->attrs[NL802154_ATTR_MAX_BE]); 1155 1156 /* check 802.15.4 constraints */ 1157 if (min_be < rdev->wpan_phy.supported.min_minbe || 1158 min_be > rdev->wpan_phy.supported.max_minbe || 1159 max_be < rdev->wpan_phy.supported.min_maxbe || 1160 max_be > rdev->wpan_phy.supported.max_maxbe || 1161 min_be > max_be) 1162 return -EINVAL; 1163 1164 return rdev_set_backoff_exponent(rdev, wpan_dev, min_be, max_be); 1165 } 1166 1167 static int 1168 nl802154_set_max_csma_backoffs(struct sk_buff *skb, struct genl_info *info) 1169 { 1170 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1171 struct net_device *dev = info->user_ptr[1]; 1172 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1173 u8 max_csma_backoffs; 1174 1175 /* conflict here while other running iface settings */ 1176 if (netif_running(dev)) 1177 return -EBUSY; 1178 1179 if (!info->attrs[NL802154_ATTR_MAX_CSMA_BACKOFFS]) 1180 return -EINVAL; 1181 1182 max_csma_backoffs = nla_get_u8( 1183 info->attrs[NL802154_ATTR_MAX_CSMA_BACKOFFS]); 1184 1185 /* check 802.15.4 constraints */ 1186 if (max_csma_backoffs < rdev->wpan_phy.supported.min_csma_backoffs || 1187 max_csma_backoffs > rdev->wpan_phy.supported.max_csma_backoffs) 1188 return -EINVAL; 1189 1190 return rdev_set_max_csma_backoffs(rdev, wpan_dev, max_csma_backoffs); 1191 } 1192 1193 static int 1194 nl802154_set_max_frame_retries(struct sk_buff *skb, struct genl_info *info) 1195 { 1196 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1197 struct net_device *dev = info->user_ptr[1]; 1198 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1199 s8 max_frame_retries; 1200 1201 if (netif_running(dev)) 1202 return -EBUSY; 1203 1204 if (!info->attrs[NL802154_ATTR_MAX_FRAME_RETRIES]) 1205 return -EINVAL; 1206 1207 max_frame_retries = nla_get_s8( 1208 info->attrs[NL802154_ATTR_MAX_FRAME_RETRIES]); 1209 1210 /* check 802.15.4 constraints */ 1211 if (max_frame_retries < rdev->wpan_phy.supported.min_frame_retries || 1212 max_frame_retries > rdev->wpan_phy.supported.max_frame_retries) 1213 return -EINVAL; 1214 1215 return rdev_set_max_frame_retries(rdev, wpan_dev, max_frame_retries); 1216 } 1217 1218 static int nl802154_set_lbt_mode(struct sk_buff *skb, struct genl_info *info) 1219 { 1220 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1221 struct net_device *dev = info->user_ptr[1]; 1222 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1223 int mode; 1224 1225 if (netif_running(dev)) 1226 return -EBUSY; 1227 1228 if (!info->attrs[NL802154_ATTR_LBT_MODE]) 1229 return -EINVAL; 1230 1231 mode = nla_get_u8(info->attrs[NL802154_ATTR_LBT_MODE]); 1232 1233 if (mode != 0 && mode != 1) 1234 return -EINVAL; 1235 1236 if (!wpan_phy_supported_bool(mode, rdev->wpan_phy.supported.lbt)) 1237 return -EINVAL; 1238 1239 return rdev_set_lbt_mode(rdev, wpan_dev, mode); 1240 } 1241 1242 static int 1243 nl802154_set_ackreq_default(struct sk_buff *skb, struct genl_info *info) 1244 { 1245 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1246 struct net_device *dev = info->user_ptr[1]; 1247 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1248 int ackreq; 1249 1250 if (netif_running(dev)) 1251 return -EBUSY; 1252 1253 if (!info->attrs[NL802154_ATTR_ACKREQ_DEFAULT]) 1254 return -EINVAL; 1255 1256 ackreq = nla_get_u8(info->attrs[NL802154_ATTR_ACKREQ_DEFAULT]); 1257 1258 if (ackreq != 0 && ackreq != 1) 1259 return -EINVAL; 1260 1261 return rdev_set_ackreq_default(rdev, wpan_dev, ackreq); 1262 } 1263 1264 static int nl802154_wpan_phy_netns(struct sk_buff *skb, struct genl_info *info) 1265 { 1266 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1267 struct net *net; 1268 int err; 1269 1270 if (info->attrs[NL802154_ATTR_PID]) { 1271 u32 pid = nla_get_u32(info->attrs[NL802154_ATTR_PID]); 1272 1273 net = get_net_ns_by_pid(pid); 1274 } else if (info->attrs[NL802154_ATTR_NETNS_FD]) { 1275 u32 fd = nla_get_u32(info->attrs[NL802154_ATTR_NETNS_FD]); 1276 1277 net = get_net_ns_by_fd(fd); 1278 } else { 1279 return -EINVAL; 1280 } 1281 1282 if (IS_ERR(net)) 1283 return PTR_ERR(net); 1284 1285 err = 0; 1286 1287 /* check if anything to do */ 1288 if (!net_eq(wpan_phy_net(&rdev->wpan_phy), net)) 1289 err = cfg802154_switch_netns(rdev, net); 1290 1291 put_net(net); 1292 return err; 1293 } 1294 1295 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL 1296 static const struct nla_policy nl802154_dev_addr_policy[NL802154_DEV_ADDR_ATTR_MAX + 1] = { 1297 [NL802154_DEV_ADDR_ATTR_PAN_ID] = { .type = NLA_U16 }, 1298 [NL802154_DEV_ADDR_ATTR_MODE] = { .type = NLA_U32 }, 1299 [NL802154_DEV_ADDR_ATTR_SHORT] = { .type = NLA_U16 }, 1300 [NL802154_DEV_ADDR_ATTR_EXTENDED] = { .type = NLA_U64 }, 1301 }; 1302 1303 static int 1304 ieee802154_llsec_parse_dev_addr(struct nlattr *nla, 1305 struct ieee802154_addr *addr) 1306 { 1307 struct nlattr *attrs[NL802154_DEV_ADDR_ATTR_MAX + 1]; 1308 1309 if (!nla || nla_parse_nested(attrs, NL802154_DEV_ADDR_ATTR_MAX, nla, 1310 nl802154_dev_addr_policy, NULL)) 1311 return -EINVAL; 1312 1313 if (!attrs[NL802154_DEV_ADDR_ATTR_PAN_ID] || 1314 !attrs[NL802154_DEV_ADDR_ATTR_MODE] || 1315 !(attrs[NL802154_DEV_ADDR_ATTR_SHORT] || 1316 attrs[NL802154_DEV_ADDR_ATTR_EXTENDED])) 1317 return -EINVAL; 1318 1319 addr->pan_id = nla_get_le16(attrs[NL802154_DEV_ADDR_ATTR_PAN_ID]); 1320 addr->mode = nla_get_u32(attrs[NL802154_DEV_ADDR_ATTR_MODE]); 1321 switch (addr->mode) { 1322 case NL802154_DEV_ADDR_SHORT: 1323 addr->short_addr = nla_get_le16(attrs[NL802154_DEV_ADDR_ATTR_SHORT]); 1324 break; 1325 case NL802154_DEV_ADDR_EXTENDED: 1326 addr->extended_addr = nla_get_le64(attrs[NL802154_DEV_ADDR_ATTR_EXTENDED]); 1327 break; 1328 default: 1329 return -EINVAL; 1330 } 1331 1332 return 0; 1333 } 1334 1335 static const struct nla_policy nl802154_key_id_policy[NL802154_KEY_ID_ATTR_MAX + 1] = { 1336 [NL802154_KEY_ID_ATTR_MODE] = { .type = NLA_U32 }, 1337 [NL802154_KEY_ID_ATTR_INDEX] = { .type = NLA_U8 }, 1338 [NL802154_KEY_ID_ATTR_IMPLICIT] = { .type = NLA_NESTED }, 1339 [NL802154_KEY_ID_ATTR_SOURCE_SHORT] = { .type = NLA_U32 }, 1340 [NL802154_KEY_ID_ATTR_SOURCE_EXTENDED] = { .type = NLA_U64 }, 1341 }; 1342 1343 static int 1344 ieee802154_llsec_parse_key_id(struct nlattr *nla, 1345 struct ieee802154_llsec_key_id *desc) 1346 { 1347 struct nlattr *attrs[NL802154_KEY_ID_ATTR_MAX + 1]; 1348 1349 if (!nla || nla_parse_nested(attrs, NL802154_KEY_ID_ATTR_MAX, nla, 1350 nl802154_key_id_policy, NULL)) 1351 return -EINVAL; 1352 1353 if (!attrs[NL802154_KEY_ID_ATTR_MODE]) 1354 return -EINVAL; 1355 1356 desc->mode = nla_get_u32(attrs[NL802154_KEY_ID_ATTR_MODE]); 1357 switch (desc->mode) { 1358 case NL802154_KEY_ID_MODE_IMPLICIT: 1359 if (!attrs[NL802154_KEY_ID_ATTR_IMPLICIT]) 1360 return -EINVAL; 1361 1362 if (ieee802154_llsec_parse_dev_addr(attrs[NL802154_KEY_ID_ATTR_IMPLICIT], 1363 &desc->device_addr) < 0) 1364 return -EINVAL; 1365 break; 1366 case NL802154_KEY_ID_MODE_INDEX: 1367 break; 1368 case NL802154_KEY_ID_MODE_INDEX_SHORT: 1369 if (!attrs[NL802154_KEY_ID_ATTR_SOURCE_SHORT]) 1370 return -EINVAL; 1371 1372 desc->short_source = nla_get_le32(attrs[NL802154_KEY_ID_ATTR_SOURCE_SHORT]); 1373 break; 1374 case NL802154_KEY_ID_MODE_INDEX_EXTENDED: 1375 if (!attrs[NL802154_KEY_ID_ATTR_SOURCE_EXTENDED]) 1376 return -EINVAL; 1377 1378 desc->extended_source = nla_get_le64(attrs[NL802154_KEY_ID_ATTR_SOURCE_EXTENDED]); 1379 break; 1380 default: 1381 return -EINVAL; 1382 } 1383 1384 if (desc->mode != NL802154_KEY_ID_MODE_IMPLICIT) { 1385 if (!attrs[NL802154_KEY_ID_ATTR_INDEX]) 1386 return -EINVAL; 1387 1388 /* TODO change id to idx */ 1389 desc->id = nla_get_u8(attrs[NL802154_KEY_ID_ATTR_INDEX]); 1390 } 1391 1392 return 0; 1393 } 1394 1395 static int nl802154_set_llsec_params(struct sk_buff *skb, 1396 struct genl_info *info) 1397 { 1398 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1399 struct net_device *dev = info->user_ptr[1]; 1400 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1401 struct ieee802154_llsec_params params; 1402 u32 changed = 0; 1403 int ret; 1404 1405 if (info->attrs[NL802154_ATTR_SEC_ENABLED]) { 1406 u8 enabled; 1407 1408 enabled = nla_get_u8(info->attrs[NL802154_ATTR_SEC_ENABLED]); 1409 if (enabled != 0 && enabled != 1) 1410 return -EINVAL; 1411 1412 params.enabled = nla_get_u8(info->attrs[NL802154_ATTR_SEC_ENABLED]); 1413 changed |= IEEE802154_LLSEC_PARAM_ENABLED; 1414 } 1415 1416 if (info->attrs[NL802154_ATTR_SEC_OUT_KEY_ID]) { 1417 ret = ieee802154_llsec_parse_key_id(info->attrs[NL802154_ATTR_SEC_OUT_KEY_ID], 1418 ¶ms.out_key); 1419 if (ret < 0) 1420 return ret; 1421 1422 changed |= IEEE802154_LLSEC_PARAM_OUT_KEY; 1423 } 1424 1425 if (info->attrs[NL802154_ATTR_SEC_OUT_LEVEL]) { 1426 params.out_level = nla_get_u32(info->attrs[NL802154_ATTR_SEC_OUT_LEVEL]); 1427 if (params.out_level > NL802154_SECLEVEL_MAX) 1428 return -EINVAL; 1429 1430 changed |= IEEE802154_LLSEC_PARAM_OUT_LEVEL; 1431 } 1432 1433 if (info->attrs[NL802154_ATTR_SEC_FRAME_COUNTER]) { 1434 params.frame_counter = nla_get_be32(info->attrs[NL802154_ATTR_SEC_FRAME_COUNTER]); 1435 changed |= IEEE802154_LLSEC_PARAM_FRAME_COUNTER; 1436 } 1437 1438 return rdev_set_llsec_params(rdev, wpan_dev, ¶ms, changed); 1439 } 1440 1441 static int nl802154_send_key(struct sk_buff *msg, u32 cmd, u32 portid, 1442 u32 seq, int flags, 1443 struct cfg802154_registered_device *rdev, 1444 struct net_device *dev, 1445 const struct ieee802154_llsec_key_entry *key) 1446 { 1447 void *hdr; 1448 u32 commands[NL802154_CMD_FRAME_NR_IDS / 32]; 1449 struct nlattr *nl_key, *nl_key_id; 1450 1451 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd); 1452 if (!hdr) 1453 return -1; 1454 1455 if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex)) 1456 goto nla_put_failure; 1457 1458 nl_key = nla_nest_start(msg, NL802154_ATTR_SEC_KEY); 1459 if (!nl_key) 1460 goto nla_put_failure; 1461 1462 nl_key_id = nla_nest_start(msg, NL802154_KEY_ATTR_ID); 1463 if (!nl_key_id) 1464 goto nla_put_failure; 1465 1466 if (ieee802154_llsec_send_key_id(msg, &key->id) < 0) 1467 goto nla_put_failure; 1468 1469 nla_nest_end(msg, nl_key_id); 1470 1471 if (nla_put_u8(msg, NL802154_KEY_ATTR_USAGE_FRAMES, 1472 key->key->frame_types)) 1473 goto nla_put_failure; 1474 1475 if (key->key->frame_types & BIT(NL802154_FRAME_CMD)) { 1476 /* TODO for each nested */ 1477 memset(commands, 0, sizeof(commands)); 1478 commands[7] = key->key->cmd_frame_ids; 1479 if (nla_put(msg, NL802154_KEY_ATTR_USAGE_CMDS, 1480 sizeof(commands), commands)) 1481 goto nla_put_failure; 1482 } 1483 1484 if (nla_put(msg, NL802154_KEY_ATTR_BYTES, NL802154_KEY_SIZE, 1485 key->key->key)) 1486 goto nla_put_failure; 1487 1488 nla_nest_end(msg, nl_key); 1489 genlmsg_end(msg, hdr); 1490 1491 return 0; 1492 1493 nla_put_failure: 1494 genlmsg_cancel(msg, hdr); 1495 return -EMSGSIZE; 1496 } 1497 1498 static int 1499 nl802154_dump_llsec_key(struct sk_buff *skb, struct netlink_callback *cb) 1500 { 1501 struct cfg802154_registered_device *rdev = NULL; 1502 struct ieee802154_llsec_key_entry *key; 1503 struct ieee802154_llsec_table *table; 1504 struct wpan_dev *wpan_dev; 1505 int err; 1506 1507 err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev); 1508 if (err) 1509 return err; 1510 1511 if (!wpan_dev->netdev) { 1512 err = -EINVAL; 1513 goto out_err; 1514 } 1515 1516 rdev_lock_llsec_table(rdev, wpan_dev); 1517 rdev_get_llsec_table(rdev, wpan_dev, &table); 1518 1519 /* TODO make it like station dump */ 1520 if (cb->args[2]) 1521 goto out; 1522 1523 list_for_each_entry(key, &table->keys, list) { 1524 if (nl802154_send_key(skb, NL802154_CMD_NEW_SEC_KEY, 1525 NETLINK_CB(cb->skb).portid, 1526 cb->nlh->nlmsg_seq, NLM_F_MULTI, 1527 rdev, wpan_dev->netdev, key) < 0) { 1528 /* TODO */ 1529 err = -EIO; 1530 rdev_unlock_llsec_table(rdev, wpan_dev); 1531 goto out_err; 1532 } 1533 } 1534 1535 cb->args[2] = 1; 1536 1537 out: 1538 rdev_unlock_llsec_table(rdev, wpan_dev); 1539 err = skb->len; 1540 out_err: 1541 nl802154_finish_wpan_dev_dump(rdev); 1542 1543 return err; 1544 } 1545 1546 static const struct nla_policy nl802154_key_policy[NL802154_KEY_ATTR_MAX + 1] = { 1547 [NL802154_KEY_ATTR_ID] = { NLA_NESTED }, 1548 /* TODO handle it as for_each_nested and NLA_FLAG? */ 1549 [NL802154_KEY_ATTR_USAGE_FRAMES] = { NLA_U8 }, 1550 /* TODO handle it as for_each_nested, not static array? */ 1551 [NL802154_KEY_ATTR_USAGE_CMDS] = { .len = NL802154_CMD_FRAME_NR_IDS / 8 }, 1552 [NL802154_KEY_ATTR_BYTES] = { .len = NL802154_KEY_SIZE }, 1553 }; 1554 1555 static int nl802154_add_llsec_key(struct sk_buff *skb, struct genl_info *info) 1556 { 1557 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1558 struct net_device *dev = info->user_ptr[1]; 1559 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1560 struct nlattr *attrs[NL802154_KEY_ATTR_MAX + 1]; 1561 struct ieee802154_llsec_key key = { }; 1562 struct ieee802154_llsec_key_id id = { }; 1563 u32 commands[NL802154_CMD_FRAME_NR_IDS / 32] = { }; 1564 1565 if (nla_parse_nested(attrs, NL802154_KEY_ATTR_MAX, 1566 info->attrs[NL802154_ATTR_SEC_KEY], 1567 nl802154_key_policy, info->extack)) 1568 return -EINVAL; 1569 1570 if (!attrs[NL802154_KEY_ATTR_USAGE_FRAMES] || 1571 !attrs[NL802154_KEY_ATTR_BYTES]) 1572 return -EINVAL; 1573 1574 if (ieee802154_llsec_parse_key_id(attrs[NL802154_KEY_ATTR_ID], &id) < 0) 1575 return -ENOBUFS; 1576 1577 key.frame_types = nla_get_u8(attrs[NL802154_KEY_ATTR_USAGE_FRAMES]); 1578 if (key.frame_types > BIT(NL802154_FRAME_MAX) || 1579 ((key.frame_types & BIT(NL802154_FRAME_CMD)) && 1580 !attrs[NL802154_KEY_ATTR_USAGE_CMDS])) 1581 return -EINVAL; 1582 1583 if (attrs[NL802154_KEY_ATTR_USAGE_CMDS]) { 1584 /* TODO for each nested */ 1585 nla_memcpy(commands, attrs[NL802154_KEY_ATTR_USAGE_CMDS], 1586 NL802154_CMD_FRAME_NR_IDS / 8); 1587 1588 /* TODO understand the -EINVAL logic here? last condition */ 1589 if (commands[0] || commands[1] || commands[2] || commands[3] || 1590 commands[4] || commands[5] || commands[6] || 1591 commands[7] > BIT(NL802154_CMD_FRAME_MAX)) 1592 return -EINVAL; 1593 1594 key.cmd_frame_ids = commands[7]; 1595 } else { 1596 key.cmd_frame_ids = 0; 1597 } 1598 1599 nla_memcpy(key.key, attrs[NL802154_KEY_ATTR_BYTES], NL802154_KEY_SIZE); 1600 1601 if (ieee802154_llsec_parse_key_id(attrs[NL802154_KEY_ATTR_ID], &id) < 0) 1602 return -ENOBUFS; 1603 1604 return rdev_add_llsec_key(rdev, wpan_dev, &id, &key); 1605 } 1606 1607 static int nl802154_del_llsec_key(struct sk_buff *skb, struct genl_info *info) 1608 { 1609 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1610 struct net_device *dev = info->user_ptr[1]; 1611 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1612 struct nlattr *attrs[NL802154_KEY_ATTR_MAX + 1]; 1613 struct ieee802154_llsec_key_id id; 1614 1615 if (nla_parse_nested(attrs, NL802154_KEY_ATTR_MAX, 1616 info->attrs[NL802154_ATTR_SEC_KEY], 1617 nl802154_key_policy, info->extack)) 1618 return -EINVAL; 1619 1620 if (ieee802154_llsec_parse_key_id(attrs[NL802154_KEY_ATTR_ID], &id) < 0) 1621 return -ENOBUFS; 1622 1623 return rdev_del_llsec_key(rdev, wpan_dev, &id); 1624 } 1625 1626 static int nl802154_send_device(struct sk_buff *msg, u32 cmd, u32 portid, 1627 u32 seq, int flags, 1628 struct cfg802154_registered_device *rdev, 1629 struct net_device *dev, 1630 const struct ieee802154_llsec_device *dev_desc) 1631 { 1632 void *hdr; 1633 struct nlattr *nl_device; 1634 1635 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd); 1636 if (!hdr) 1637 return -1; 1638 1639 if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex)) 1640 goto nla_put_failure; 1641 1642 nl_device = nla_nest_start(msg, NL802154_ATTR_SEC_DEVICE); 1643 if (!nl_device) 1644 goto nla_put_failure; 1645 1646 if (nla_put_u32(msg, NL802154_DEV_ATTR_FRAME_COUNTER, 1647 dev_desc->frame_counter) || 1648 nla_put_le16(msg, NL802154_DEV_ATTR_PAN_ID, dev_desc->pan_id) || 1649 nla_put_le16(msg, NL802154_DEV_ATTR_SHORT_ADDR, 1650 dev_desc->short_addr) || 1651 nla_put_le64(msg, NL802154_DEV_ATTR_EXTENDED_ADDR, 1652 dev_desc->hwaddr, NL802154_DEV_ATTR_PAD) || 1653 nla_put_u8(msg, NL802154_DEV_ATTR_SECLEVEL_EXEMPT, 1654 dev_desc->seclevel_exempt) || 1655 nla_put_u32(msg, NL802154_DEV_ATTR_KEY_MODE, dev_desc->key_mode)) 1656 goto nla_put_failure; 1657 1658 nla_nest_end(msg, nl_device); 1659 genlmsg_end(msg, hdr); 1660 1661 return 0; 1662 1663 nla_put_failure: 1664 genlmsg_cancel(msg, hdr); 1665 return -EMSGSIZE; 1666 } 1667 1668 static int 1669 nl802154_dump_llsec_dev(struct sk_buff *skb, struct netlink_callback *cb) 1670 { 1671 struct cfg802154_registered_device *rdev = NULL; 1672 struct ieee802154_llsec_device *dev; 1673 struct ieee802154_llsec_table *table; 1674 struct wpan_dev *wpan_dev; 1675 int err; 1676 1677 err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev); 1678 if (err) 1679 return err; 1680 1681 if (!wpan_dev->netdev) { 1682 err = -EINVAL; 1683 goto out_err; 1684 } 1685 1686 rdev_lock_llsec_table(rdev, wpan_dev); 1687 rdev_get_llsec_table(rdev, wpan_dev, &table); 1688 1689 /* TODO make it like station dump */ 1690 if (cb->args[2]) 1691 goto out; 1692 1693 list_for_each_entry(dev, &table->devices, list) { 1694 if (nl802154_send_device(skb, NL802154_CMD_NEW_SEC_LEVEL, 1695 NETLINK_CB(cb->skb).portid, 1696 cb->nlh->nlmsg_seq, NLM_F_MULTI, 1697 rdev, wpan_dev->netdev, dev) < 0) { 1698 /* TODO */ 1699 err = -EIO; 1700 rdev_unlock_llsec_table(rdev, wpan_dev); 1701 goto out_err; 1702 } 1703 } 1704 1705 cb->args[2] = 1; 1706 1707 out: 1708 rdev_unlock_llsec_table(rdev, wpan_dev); 1709 err = skb->len; 1710 out_err: 1711 nl802154_finish_wpan_dev_dump(rdev); 1712 1713 return err; 1714 } 1715 1716 static const struct nla_policy nl802154_dev_policy[NL802154_DEV_ATTR_MAX + 1] = { 1717 [NL802154_DEV_ATTR_FRAME_COUNTER] = { NLA_U32 }, 1718 [NL802154_DEV_ATTR_PAN_ID] = { .type = NLA_U16 }, 1719 [NL802154_DEV_ATTR_SHORT_ADDR] = { .type = NLA_U16 }, 1720 [NL802154_DEV_ATTR_EXTENDED_ADDR] = { .type = NLA_U64 }, 1721 [NL802154_DEV_ATTR_SECLEVEL_EXEMPT] = { NLA_U8 }, 1722 [NL802154_DEV_ATTR_KEY_MODE] = { NLA_U32 }, 1723 }; 1724 1725 static int 1726 ieee802154_llsec_parse_device(struct nlattr *nla, 1727 struct ieee802154_llsec_device *dev) 1728 { 1729 struct nlattr *attrs[NL802154_DEV_ATTR_MAX + 1]; 1730 1731 if (!nla || nla_parse_nested(attrs, NL802154_DEV_ATTR_MAX, 1732 nla, nl802154_dev_policy, NULL)) 1733 return -EINVAL; 1734 1735 memset(dev, 0, sizeof(*dev)); 1736 1737 if (!attrs[NL802154_DEV_ATTR_FRAME_COUNTER] || 1738 !attrs[NL802154_DEV_ATTR_PAN_ID] || 1739 !attrs[NL802154_DEV_ATTR_SHORT_ADDR] || 1740 !attrs[NL802154_DEV_ATTR_EXTENDED_ADDR] || 1741 !attrs[NL802154_DEV_ATTR_SECLEVEL_EXEMPT] || 1742 !attrs[NL802154_DEV_ATTR_KEY_MODE]) 1743 return -EINVAL; 1744 1745 /* TODO be32 */ 1746 dev->frame_counter = nla_get_u32(attrs[NL802154_DEV_ATTR_FRAME_COUNTER]); 1747 dev->pan_id = nla_get_le16(attrs[NL802154_DEV_ATTR_PAN_ID]); 1748 dev->short_addr = nla_get_le16(attrs[NL802154_DEV_ATTR_SHORT_ADDR]); 1749 /* TODO rename hwaddr to extended_addr */ 1750 dev->hwaddr = nla_get_le64(attrs[NL802154_DEV_ATTR_EXTENDED_ADDR]); 1751 dev->seclevel_exempt = nla_get_u8(attrs[NL802154_DEV_ATTR_SECLEVEL_EXEMPT]); 1752 dev->key_mode = nla_get_u32(attrs[NL802154_DEV_ATTR_KEY_MODE]); 1753 1754 if (dev->key_mode > NL802154_DEVKEY_MAX || 1755 (dev->seclevel_exempt != 0 && dev->seclevel_exempt != 1)) 1756 return -EINVAL; 1757 1758 return 0; 1759 } 1760 1761 static int nl802154_add_llsec_dev(struct sk_buff *skb, struct genl_info *info) 1762 { 1763 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1764 struct net_device *dev = info->user_ptr[1]; 1765 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1766 struct ieee802154_llsec_device dev_desc; 1767 1768 if (ieee802154_llsec_parse_device(info->attrs[NL802154_ATTR_SEC_DEVICE], 1769 &dev_desc) < 0) 1770 return -EINVAL; 1771 1772 return rdev_add_device(rdev, wpan_dev, &dev_desc); 1773 } 1774 1775 static int nl802154_del_llsec_dev(struct sk_buff *skb, struct genl_info *info) 1776 { 1777 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1778 struct net_device *dev = info->user_ptr[1]; 1779 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1780 struct nlattr *attrs[NL802154_DEV_ATTR_MAX + 1]; 1781 __le64 extended_addr; 1782 1783 if (nla_parse_nested(attrs, NL802154_DEV_ATTR_MAX, 1784 info->attrs[NL802154_ATTR_SEC_DEVICE], 1785 nl802154_dev_policy, info->extack)) 1786 return -EINVAL; 1787 1788 if (!attrs[NL802154_DEV_ATTR_EXTENDED_ADDR]) 1789 return -EINVAL; 1790 1791 extended_addr = nla_get_le64(attrs[NL802154_DEV_ATTR_EXTENDED_ADDR]); 1792 return rdev_del_device(rdev, wpan_dev, extended_addr); 1793 } 1794 1795 static int nl802154_send_devkey(struct sk_buff *msg, u32 cmd, u32 portid, 1796 u32 seq, int flags, 1797 struct cfg802154_registered_device *rdev, 1798 struct net_device *dev, __le64 extended_addr, 1799 const struct ieee802154_llsec_device_key *devkey) 1800 { 1801 void *hdr; 1802 struct nlattr *nl_devkey, *nl_key_id; 1803 1804 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd); 1805 if (!hdr) 1806 return -1; 1807 1808 if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex)) 1809 goto nla_put_failure; 1810 1811 nl_devkey = nla_nest_start(msg, NL802154_ATTR_SEC_DEVKEY); 1812 if (!nl_devkey) 1813 goto nla_put_failure; 1814 1815 if (nla_put_le64(msg, NL802154_DEVKEY_ATTR_EXTENDED_ADDR, 1816 extended_addr, NL802154_DEVKEY_ATTR_PAD) || 1817 nla_put_u32(msg, NL802154_DEVKEY_ATTR_FRAME_COUNTER, 1818 devkey->frame_counter)) 1819 goto nla_put_failure; 1820 1821 nl_key_id = nla_nest_start(msg, NL802154_DEVKEY_ATTR_ID); 1822 if (!nl_key_id) 1823 goto nla_put_failure; 1824 1825 if (ieee802154_llsec_send_key_id(msg, &devkey->key_id) < 0) 1826 goto nla_put_failure; 1827 1828 nla_nest_end(msg, nl_key_id); 1829 nla_nest_end(msg, nl_devkey); 1830 genlmsg_end(msg, hdr); 1831 1832 return 0; 1833 1834 nla_put_failure: 1835 genlmsg_cancel(msg, hdr); 1836 return -EMSGSIZE; 1837 } 1838 1839 static int 1840 nl802154_dump_llsec_devkey(struct sk_buff *skb, struct netlink_callback *cb) 1841 { 1842 struct cfg802154_registered_device *rdev = NULL; 1843 struct ieee802154_llsec_device_key *kpos; 1844 struct ieee802154_llsec_device *dpos; 1845 struct ieee802154_llsec_table *table; 1846 struct wpan_dev *wpan_dev; 1847 int err; 1848 1849 err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev); 1850 if (err) 1851 return err; 1852 1853 if (!wpan_dev->netdev) { 1854 err = -EINVAL; 1855 goto out_err; 1856 } 1857 1858 rdev_lock_llsec_table(rdev, wpan_dev); 1859 rdev_get_llsec_table(rdev, wpan_dev, &table); 1860 1861 /* TODO make it like station dump */ 1862 if (cb->args[2]) 1863 goto out; 1864 1865 /* TODO look if remove devkey and do some nested attribute */ 1866 list_for_each_entry(dpos, &table->devices, list) { 1867 list_for_each_entry(kpos, &dpos->keys, list) { 1868 if (nl802154_send_devkey(skb, 1869 NL802154_CMD_NEW_SEC_LEVEL, 1870 NETLINK_CB(cb->skb).portid, 1871 cb->nlh->nlmsg_seq, 1872 NLM_F_MULTI, rdev, 1873 wpan_dev->netdev, 1874 dpos->hwaddr, 1875 kpos) < 0) { 1876 /* TODO */ 1877 err = -EIO; 1878 rdev_unlock_llsec_table(rdev, wpan_dev); 1879 goto out_err; 1880 } 1881 } 1882 } 1883 1884 cb->args[2] = 1; 1885 1886 out: 1887 rdev_unlock_llsec_table(rdev, wpan_dev); 1888 err = skb->len; 1889 out_err: 1890 nl802154_finish_wpan_dev_dump(rdev); 1891 1892 return err; 1893 } 1894 1895 static const struct nla_policy nl802154_devkey_policy[NL802154_DEVKEY_ATTR_MAX + 1] = { 1896 [NL802154_DEVKEY_ATTR_FRAME_COUNTER] = { NLA_U32 }, 1897 [NL802154_DEVKEY_ATTR_EXTENDED_ADDR] = { NLA_U64 }, 1898 [NL802154_DEVKEY_ATTR_ID] = { NLA_NESTED }, 1899 }; 1900 1901 static int nl802154_add_llsec_devkey(struct sk_buff *skb, struct genl_info *info) 1902 { 1903 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1904 struct net_device *dev = info->user_ptr[1]; 1905 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1906 struct nlattr *attrs[NL802154_DEVKEY_ATTR_MAX + 1]; 1907 struct ieee802154_llsec_device_key key; 1908 __le64 extended_addr; 1909 1910 if (!info->attrs[NL802154_ATTR_SEC_DEVKEY] || 1911 nla_parse_nested(attrs, NL802154_DEVKEY_ATTR_MAX, 1912 info->attrs[NL802154_ATTR_SEC_DEVKEY], 1913 nl802154_devkey_policy, info->extack) < 0) 1914 return -EINVAL; 1915 1916 if (!attrs[NL802154_DEVKEY_ATTR_FRAME_COUNTER] || 1917 !attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR]) 1918 return -EINVAL; 1919 1920 /* TODO change key.id ? */ 1921 if (ieee802154_llsec_parse_key_id(attrs[NL802154_DEVKEY_ATTR_ID], 1922 &key.key_id) < 0) 1923 return -ENOBUFS; 1924 1925 /* TODO be32 */ 1926 key.frame_counter = nla_get_u32(attrs[NL802154_DEVKEY_ATTR_FRAME_COUNTER]); 1927 /* TODO change naming hwaddr -> extended_addr 1928 * check unique identifier short+pan OR extended_addr 1929 */ 1930 extended_addr = nla_get_le64(attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR]); 1931 return rdev_add_devkey(rdev, wpan_dev, extended_addr, &key); 1932 } 1933 1934 static int nl802154_del_llsec_devkey(struct sk_buff *skb, struct genl_info *info) 1935 { 1936 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1937 struct net_device *dev = info->user_ptr[1]; 1938 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1939 struct nlattr *attrs[NL802154_DEVKEY_ATTR_MAX + 1]; 1940 struct ieee802154_llsec_device_key key; 1941 __le64 extended_addr; 1942 1943 if (nla_parse_nested(attrs, NL802154_DEVKEY_ATTR_MAX, 1944 info->attrs[NL802154_ATTR_SEC_DEVKEY], 1945 nl802154_devkey_policy, info->extack)) 1946 return -EINVAL; 1947 1948 if (!attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR]) 1949 return -EINVAL; 1950 1951 /* TODO change key.id ? */ 1952 if (ieee802154_llsec_parse_key_id(attrs[NL802154_DEVKEY_ATTR_ID], 1953 &key.key_id) < 0) 1954 return -ENOBUFS; 1955 1956 /* TODO change naming hwaddr -> extended_addr 1957 * check unique identifier short+pan OR extended_addr 1958 */ 1959 extended_addr = nla_get_le64(attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR]); 1960 return rdev_del_devkey(rdev, wpan_dev, extended_addr, &key); 1961 } 1962 1963 static int nl802154_send_seclevel(struct sk_buff *msg, u32 cmd, u32 portid, 1964 u32 seq, int flags, 1965 struct cfg802154_registered_device *rdev, 1966 struct net_device *dev, 1967 const struct ieee802154_llsec_seclevel *sl) 1968 { 1969 void *hdr; 1970 struct nlattr *nl_seclevel; 1971 1972 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd); 1973 if (!hdr) 1974 return -1; 1975 1976 if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex)) 1977 goto nla_put_failure; 1978 1979 nl_seclevel = nla_nest_start(msg, NL802154_ATTR_SEC_LEVEL); 1980 if (!nl_seclevel) 1981 goto nla_put_failure; 1982 1983 if (nla_put_u32(msg, NL802154_SECLEVEL_ATTR_FRAME, sl->frame_type) || 1984 nla_put_u32(msg, NL802154_SECLEVEL_ATTR_LEVELS, sl->sec_levels) || 1985 nla_put_u8(msg, NL802154_SECLEVEL_ATTR_DEV_OVERRIDE, 1986 sl->device_override)) 1987 goto nla_put_failure; 1988 1989 if (sl->frame_type == NL802154_FRAME_CMD) { 1990 if (nla_put_u32(msg, NL802154_SECLEVEL_ATTR_CMD_FRAME, 1991 sl->cmd_frame_id)) 1992 goto nla_put_failure; 1993 } 1994 1995 nla_nest_end(msg, nl_seclevel); 1996 genlmsg_end(msg, hdr); 1997 1998 return 0; 1999 2000 nla_put_failure: 2001 genlmsg_cancel(msg, hdr); 2002 return -EMSGSIZE; 2003 } 2004 2005 static int 2006 nl802154_dump_llsec_seclevel(struct sk_buff *skb, struct netlink_callback *cb) 2007 { 2008 struct cfg802154_registered_device *rdev = NULL; 2009 struct ieee802154_llsec_seclevel *sl; 2010 struct ieee802154_llsec_table *table; 2011 struct wpan_dev *wpan_dev; 2012 int err; 2013 2014 err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev); 2015 if (err) 2016 return err; 2017 2018 if (!wpan_dev->netdev) { 2019 err = -EINVAL; 2020 goto out_err; 2021 } 2022 2023 rdev_lock_llsec_table(rdev, wpan_dev); 2024 rdev_get_llsec_table(rdev, wpan_dev, &table); 2025 2026 /* TODO make it like station dump */ 2027 if (cb->args[2]) 2028 goto out; 2029 2030 list_for_each_entry(sl, &table->security_levels, list) { 2031 if (nl802154_send_seclevel(skb, NL802154_CMD_NEW_SEC_LEVEL, 2032 NETLINK_CB(cb->skb).portid, 2033 cb->nlh->nlmsg_seq, NLM_F_MULTI, 2034 rdev, wpan_dev->netdev, sl) < 0) { 2035 /* TODO */ 2036 err = -EIO; 2037 rdev_unlock_llsec_table(rdev, wpan_dev); 2038 goto out_err; 2039 } 2040 } 2041 2042 cb->args[2] = 1; 2043 2044 out: 2045 rdev_unlock_llsec_table(rdev, wpan_dev); 2046 err = skb->len; 2047 out_err: 2048 nl802154_finish_wpan_dev_dump(rdev); 2049 2050 return err; 2051 } 2052 2053 static const struct nla_policy nl802154_seclevel_policy[NL802154_SECLEVEL_ATTR_MAX + 1] = { 2054 [NL802154_SECLEVEL_ATTR_LEVELS] = { .type = NLA_U8 }, 2055 [NL802154_SECLEVEL_ATTR_FRAME] = { .type = NLA_U32 }, 2056 [NL802154_SECLEVEL_ATTR_CMD_FRAME] = { .type = NLA_U32 }, 2057 [NL802154_SECLEVEL_ATTR_DEV_OVERRIDE] = { .type = NLA_U8 }, 2058 }; 2059 2060 static int 2061 llsec_parse_seclevel(struct nlattr *nla, struct ieee802154_llsec_seclevel *sl) 2062 { 2063 struct nlattr *attrs[NL802154_SECLEVEL_ATTR_MAX + 1]; 2064 2065 if (!nla || nla_parse_nested(attrs, NL802154_SECLEVEL_ATTR_MAX, 2066 nla, nl802154_seclevel_policy, NULL)) 2067 return -EINVAL; 2068 2069 memset(sl, 0, sizeof(*sl)); 2070 2071 if (!attrs[NL802154_SECLEVEL_ATTR_LEVELS] || 2072 !attrs[NL802154_SECLEVEL_ATTR_FRAME] || 2073 !attrs[NL802154_SECLEVEL_ATTR_DEV_OVERRIDE]) 2074 return -EINVAL; 2075 2076 sl->sec_levels = nla_get_u8(attrs[NL802154_SECLEVEL_ATTR_LEVELS]); 2077 sl->frame_type = nla_get_u32(attrs[NL802154_SECLEVEL_ATTR_FRAME]); 2078 sl->device_override = nla_get_u8(attrs[NL802154_SECLEVEL_ATTR_DEV_OVERRIDE]); 2079 if (sl->frame_type > NL802154_FRAME_MAX || 2080 (sl->device_override != 0 && sl->device_override != 1)) 2081 return -EINVAL; 2082 2083 if (sl->frame_type == NL802154_FRAME_CMD) { 2084 if (!attrs[NL802154_SECLEVEL_ATTR_CMD_FRAME]) 2085 return -EINVAL; 2086 2087 sl->cmd_frame_id = nla_get_u32(attrs[NL802154_SECLEVEL_ATTR_CMD_FRAME]); 2088 if (sl->cmd_frame_id > NL802154_CMD_FRAME_MAX) 2089 return -EINVAL; 2090 } 2091 2092 return 0; 2093 } 2094 2095 static int nl802154_add_llsec_seclevel(struct sk_buff *skb, 2096 struct genl_info *info) 2097 { 2098 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 2099 struct net_device *dev = info->user_ptr[1]; 2100 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 2101 struct ieee802154_llsec_seclevel sl; 2102 2103 if (llsec_parse_seclevel(info->attrs[NL802154_ATTR_SEC_LEVEL], 2104 &sl) < 0) 2105 return -EINVAL; 2106 2107 return rdev_add_seclevel(rdev, wpan_dev, &sl); 2108 } 2109 2110 static int nl802154_del_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 (!info->attrs[NL802154_ATTR_SEC_LEVEL] || 2119 llsec_parse_seclevel(info->attrs[NL802154_ATTR_SEC_LEVEL], 2120 &sl) < 0) 2121 return -EINVAL; 2122 2123 return rdev_del_seclevel(rdev, wpan_dev, &sl); 2124 } 2125 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */ 2126 2127 #define NL802154_FLAG_NEED_WPAN_PHY 0x01 2128 #define NL802154_FLAG_NEED_NETDEV 0x02 2129 #define NL802154_FLAG_NEED_RTNL 0x04 2130 #define NL802154_FLAG_CHECK_NETDEV_UP 0x08 2131 #define NL802154_FLAG_NEED_NETDEV_UP (NL802154_FLAG_NEED_NETDEV |\ 2132 NL802154_FLAG_CHECK_NETDEV_UP) 2133 #define NL802154_FLAG_NEED_WPAN_DEV 0x10 2134 #define NL802154_FLAG_NEED_WPAN_DEV_UP (NL802154_FLAG_NEED_WPAN_DEV |\ 2135 NL802154_FLAG_CHECK_NETDEV_UP) 2136 2137 static int nl802154_pre_doit(const struct genl_ops *ops, struct sk_buff *skb, 2138 struct genl_info *info) 2139 { 2140 struct cfg802154_registered_device *rdev; 2141 struct wpan_dev *wpan_dev; 2142 struct net_device *dev; 2143 bool rtnl = ops->internal_flags & NL802154_FLAG_NEED_RTNL; 2144 2145 if (rtnl) 2146 rtnl_lock(); 2147 2148 if (ops->internal_flags & NL802154_FLAG_NEED_WPAN_PHY) { 2149 rdev = cfg802154_get_dev_from_info(genl_info_net(info), info); 2150 if (IS_ERR(rdev)) { 2151 if (rtnl) 2152 rtnl_unlock(); 2153 return PTR_ERR(rdev); 2154 } 2155 info->user_ptr[0] = rdev; 2156 } else if (ops->internal_flags & NL802154_FLAG_NEED_NETDEV || 2157 ops->internal_flags & NL802154_FLAG_NEED_WPAN_DEV) { 2158 ASSERT_RTNL(); 2159 wpan_dev = __cfg802154_wpan_dev_from_attrs(genl_info_net(info), 2160 info->attrs); 2161 if (IS_ERR(wpan_dev)) { 2162 if (rtnl) 2163 rtnl_unlock(); 2164 return PTR_ERR(wpan_dev); 2165 } 2166 2167 dev = wpan_dev->netdev; 2168 rdev = wpan_phy_to_rdev(wpan_dev->wpan_phy); 2169 2170 if (ops->internal_flags & NL802154_FLAG_NEED_NETDEV) { 2171 if (!dev) { 2172 if (rtnl) 2173 rtnl_unlock(); 2174 return -EINVAL; 2175 } 2176 2177 info->user_ptr[1] = dev; 2178 } else { 2179 info->user_ptr[1] = wpan_dev; 2180 } 2181 2182 if (dev) { 2183 if (ops->internal_flags & NL802154_FLAG_CHECK_NETDEV_UP && 2184 !netif_running(dev)) { 2185 if (rtnl) 2186 rtnl_unlock(); 2187 return -ENETDOWN; 2188 } 2189 2190 dev_hold(dev); 2191 } 2192 2193 info->user_ptr[0] = rdev; 2194 } 2195 2196 return 0; 2197 } 2198 2199 static void nl802154_post_doit(const struct genl_ops *ops, struct sk_buff *skb, 2200 struct genl_info *info) 2201 { 2202 if (info->user_ptr[1]) { 2203 if (ops->internal_flags & NL802154_FLAG_NEED_WPAN_DEV) { 2204 struct wpan_dev *wpan_dev = info->user_ptr[1]; 2205 2206 if (wpan_dev->netdev) 2207 dev_put(wpan_dev->netdev); 2208 } else { 2209 dev_put(info->user_ptr[1]); 2210 } 2211 } 2212 2213 if (ops->internal_flags & NL802154_FLAG_NEED_RTNL) 2214 rtnl_unlock(); 2215 } 2216 2217 static const struct genl_ops nl802154_ops[] = { 2218 { 2219 .cmd = NL802154_CMD_GET_WPAN_PHY, 2220 .doit = nl802154_get_wpan_phy, 2221 .dumpit = nl802154_dump_wpan_phy, 2222 .done = nl802154_dump_wpan_phy_done, 2223 .policy = nl802154_policy, 2224 /* can be retrieved by unprivileged users */ 2225 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY | 2226 NL802154_FLAG_NEED_RTNL, 2227 }, 2228 { 2229 .cmd = NL802154_CMD_GET_INTERFACE, 2230 .doit = nl802154_get_interface, 2231 .dumpit = nl802154_dump_interface, 2232 .policy = nl802154_policy, 2233 /* can be retrieved by unprivileged users */ 2234 .internal_flags = NL802154_FLAG_NEED_WPAN_DEV | 2235 NL802154_FLAG_NEED_RTNL, 2236 }, 2237 { 2238 .cmd = NL802154_CMD_NEW_INTERFACE, 2239 .doit = nl802154_new_interface, 2240 .policy = nl802154_policy, 2241 .flags = GENL_ADMIN_PERM, 2242 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY | 2243 NL802154_FLAG_NEED_RTNL, 2244 }, 2245 { 2246 .cmd = NL802154_CMD_DEL_INTERFACE, 2247 .doit = nl802154_del_interface, 2248 .policy = nl802154_policy, 2249 .flags = GENL_ADMIN_PERM, 2250 .internal_flags = NL802154_FLAG_NEED_WPAN_DEV | 2251 NL802154_FLAG_NEED_RTNL, 2252 }, 2253 { 2254 .cmd = NL802154_CMD_SET_CHANNEL, 2255 .doit = nl802154_set_channel, 2256 .policy = nl802154_policy, 2257 .flags = GENL_ADMIN_PERM, 2258 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY | 2259 NL802154_FLAG_NEED_RTNL, 2260 }, 2261 { 2262 .cmd = NL802154_CMD_SET_CCA_MODE, 2263 .doit = nl802154_set_cca_mode, 2264 .policy = nl802154_policy, 2265 .flags = GENL_ADMIN_PERM, 2266 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY | 2267 NL802154_FLAG_NEED_RTNL, 2268 }, 2269 { 2270 .cmd = NL802154_CMD_SET_CCA_ED_LEVEL, 2271 .doit = nl802154_set_cca_ed_level, 2272 .policy = nl802154_policy, 2273 .flags = GENL_ADMIN_PERM, 2274 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY | 2275 NL802154_FLAG_NEED_RTNL, 2276 }, 2277 { 2278 .cmd = NL802154_CMD_SET_TX_POWER, 2279 .doit = nl802154_set_tx_power, 2280 .policy = nl802154_policy, 2281 .flags = GENL_ADMIN_PERM, 2282 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY | 2283 NL802154_FLAG_NEED_RTNL, 2284 }, 2285 { 2286 .cmd = NL802154_CMD_SET_WPAN_PHY_NETNS, 2287 .doit = nl802154_wpan_phy_netns, 2288 .policy = nl802154_policy, 2289 .flags = GENL_ADMIN_PERM, 2290 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY | 2291 NL802154_FLAG_NEED_RTNL, 2292 }, 2293 { 2294 .cmd = NL802154_CMD_SET_PAN_ID, 2295 .doit = nl802154_set_pan_id, 2296 .policy = nl802154_policy, 2297 .flags = GENL_ADMIN_PERM, 2298 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2299 NL802154_FLAG_NEED_RTNL, 2300 }, 2301 { 2302 .cmd = NL802154_CMD_SET_SHORT_ADDR, 2303 .doit = nl802154_set_short_addr, 2304 .policy = nl802154_policy, 2305 .flags = GENL_ADMIN_PERM, 2306 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2307 NL802154_FLAG_NEED_RTNL, 2308 }, 2309 { 2310 .cmd = NL802154_CMD_SET_BACKOFF_EXPONENT, 2311 .doit = nl802154_set_backoff_exponent, 2312 .policy = nl802154_policy, 2313 .flags = GENL_ADMIN_PERM, 2314 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2315 NL802154_FLAG_NEED_RTNL, 2316 }, 2317 { 2318 .cmd = NL802154_CMD_SET_MAX_CSMA_BACKOFFS, 2319 .doit = nl802154_set_max_csma_backoffs, 2320 .policy = nl802154_policy, 2321 .flags = GENL_ADMIN_PERM, 2322 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2323 NL802154_FLAG_NEED_RTNL, 2324 }, 2325 { 2326 .cmd = NL802154_CMD_SET_MAX_FRAME_RETRIES, 2327 .doit = nl802154_set_max_frame_retries, 2328 .policy = nl802154_policy, 2329 .flags = GENL_ADMIN_PERM, 2330 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2331 NL802154_FLAG_NEED_RTNL, 2332 }, 2333 { 2334 .cmd = NL802154_CMD_SET_LBT_MODE, 2335 .doit = nl802154_set_lbt_mode, 2336 .policy = nl802154_policy, 2337 .flags = GENL_ADMIN_PERM, 2338 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2339 NL802154_FLAG_NEED_RTNL, 2340 }, 2341 { 2342 .cmd = NL802154_CMD_SET_ACKREQ_DEFAULT, 2343 .doit = nl802154_set_ackreq_default, 2344 .policy = nl802154_policy, 2345 .flags = GENL_ADMIN_PERM, 2346 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2347 NL802154_FLAG_NEED_RTNL, 2348 }, 2349 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL 2350 { 2351 .cmd = NL802154_CMD_SET_SEC_PARAMS, 2352 .doit = nl802154_set_llsec_params, 2353 .policy = nl802154_policy, 2354 .flags = GENL_ADMIN_PERM, 2355 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2356 NL802154_FLAG_NEED_RTNL, 2357 }, 2358 { 2359 .cmd = NL802154_CMD_GET_SEC_KEY, 2360 /* TODO .doit by matching key id? */ 2361 .dumpit = nl802154_dump_llsec_key, 2362 .policy = nl802154_policy, 2363 .flags = GENL_ADMIN_PERM, 2364 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2365 NL802154_FLAG_NEED_RTNL, 2366 }, 2367 { 2368 .cmd = NL802154_CMD_NEW_SEC_KEY, 2369 .doit = nl802154_add_llsec_key, 2370 .policy = nl802154_policy, 2371 .flags = GENL_ADMIN_PERM, 2372 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2373 NL802154_FLAG_NEED_RTNL, 2374 }, 2375 { 2376 .cmd = NL802154_CMD_DEL_SEC_KEY, 2377 .doit = nl802154_del_llsec_key, 2378 .policy = nl802154_policy, 2379 .flags = GENL_ADMIN_PERM, 2380 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2381 NL802154_FLAG_NEED_RTNL, 2382 }, 2383 /* TODO unique identifier must short+pan OR extended_addr */ 2384 { 2385 .cmd = NL802154_CMD_GET_SEC_DEV, 2386 /* TODO .doit by matching extended_addr? */ 2387 .dumpit = nl802154_dump_llsec_dev, 2388 .policy = nl802154_policy, 2389 .flags = GENL_ADMIN_PERM, 2390 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2391 NL802154_FLAG_NEED_RTNL, 2392 }, 2393 { 2394 .cmd = NL802154_CMD_NEW_SEC_DEV, 2395 .doit = nl802154_add_llsec_dev, 2396 .policy = nl802154_policy, 2397 .flags = GENL_ADMIN_PERM, 2398 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2399 NL802154_FLAG_NEED_RTNL, 2400 }, 2401 { 2402 .cmd = NL802154_CMD_DEL_SEC_DEV, 2403 .doit = nl802154_del_llsec_dev, 2404 .policy = nl802154_policy, 2405 .flags = GENL_ADMIN_PERM, 2406 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2407 NL802154_FLAG_NEED_RTNL, 2408 }, 2409 /* TODO remove complete devkey, put it as nested? */ 2410 { 2411 .cmd = NL802154_CMD_GET_SEC_DEVKEY, 2412 /* TODO doit by matching ??? */ 2413 .dumpit = nl802154_dump_llsec_devkey, 2414 .policy = nl802154_policy, 2415 .flags = GENL_ADMIN_PERM, 2416 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2417 NL802154_FLAG_NEED_RTNL, 2418 }, 2419 { 2420 .cmd = NL802154_CMD_NEW_SEC_DEVKEY, 2421 .doit = nl802154_add_llsec_devkey, 2422 .policy = nl802154_policy, 2423 .flags = GENL_ADMIN_PERM, 2424 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2425 NL802154_FLAG_NEED_RTNL, 2426 }, 2427 { 2428 .cmd = NL802154_CMD_DEL_SEC_DEVKEY, 2429 .doit = nl802154_del_llsec_devkey, 2430 .policy = nl802154_policy, 2431 .flags = GENL_ADMIN_PERM, 2432 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2433 NL802154_FLAG_NEED_RTNL, 2434 }, 2435 { 2436 .cmd = NL802154_CMD_GET_SEC_LEVEL, 2437 /* TODO .doit by matching frame_type? */ 2438 .dumpit = nl802154_dump_llsec_seclevel, 2439 .policy = nl802154_policy, 2440 .flags = GENL_ADMIN_PERM, 2441 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2442 NL802154_FLAG_NEED_RTNL, 2443 }, 2444 { 2445 .cmd = NL802154_CMD_NEW_SEC_LEVEL, 2446 .doit = nl802154_add_llsec_seclevel, 2447 .policy = nl802154_policy, 2448 .flags = GENL_ADMIN_PERM, 2449 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2450 NL802154_FLAG_NEED_RTNL, 2451 }, 2452 { 2453 .cmd = NL802154_CMD_DEL_SEC_LEVEL, 2454 /* TODO match frame_type only? */ 2455 .doit = nl802154_del_llsec_seclevel, 2456 .policy = nl802154_policy, 2457 .flags = GENL_ADMIN_PERM, 2458 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2459 NL802154_FLAG_NEED_RTNL, 2460 }, 2461 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */ 2462 }; 2463 2464 static struct genl_family nl802154_fam __ro_after_init = { 2465 .name = NL802154_GENL_NAME, /* have users key off the name instead */ 2466 .hdrsize = 0, /* no private header */ 2467 .version = 1, /* no particular meaning now */ 2468 .maxattr = NL802154_ATTR_MAX, 2469 .netnsok = true, 2470 .pre_doit = nl802154_pre_doit, 2471 .post_doit = nl802154_post_doit, 2472 .module = THIS_MODULE, 2473 .ops = nl802154_ops, 2474 .n_ops = ARRAY_SIZE(nl802154_ops), 2475 .mcgrps = nl802154_mcgrps, 2476 .n_mcgrps = ARRAY_SIZE(nl802154_mcgrps), 2477 }; 2478 2479 /* initialisation/exit functions */ 2480 int __init nl802154_init(void) 2481 { 2482 return genl_register_family(&nl802154_fam); 2483 } 2484 2485 void nl802154_exit(void) 2486 { 2487 genl_unregister_family(&nl802154_fam); 2488 } 2489