1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * 4 * Authors: 5 * Alexander Aring <aar@pengutronix.de> 6 * 7 * Based on: net/wireless/nl80211.c 8 */ 9 10 #include <linux/rtnetlink.h> 11 12 #include <net/cfg802154.h> 13 #include <net/genetlink.h> 14 #include <net/mac802154.h> 15 #include <net/netlink.h> 16 #include <net/nl802154.h> 17 #include <net/sock.h> 18 19 #include "nl802154.h" 20 #include "rdev-ops.h" 21 #include "core.h" 22 23 /* the netlink family */ 24 static struct genl_family nl802154_fam; 25 26 /* multicast groups */ 27 enum nl802154_multicast_groups { 28 NL802154_MCGRP_CONFIG, 29 NL802154_MCGRP_SCAN, 30 }; 31 32 static const struct genl_multicast_group nl802154_mcgrps[] = { 33 [NL802154_MCGRP_CONFIG] = { .name = "config", }, 34 [NL802154_MCGRP_SCAN] = { .name = "scan", }, 35 }; 36 37 /* returns ERR_PTR values */ 38 static struct wpan_dev * 39 __cfg802154_wpan_dev_from_attrs(struct net *netns, struct nlattr **attrs) 40 { 41 struct cfg802154_registered_device *rdev; 42 struct wpan_dev *result = NULL; 43 bool have_ifidx = attrs[NL802154_ATTR_IFINDEX]; 44 bool have_wpan_dev_id = attrs[NL802154_ATTR_WPAN_DEV]; 45 u64 wpan_dev_id; 46 int wpan_phy_idx = -1; 47 int ifidx = -1; 48 49 ASSERT_RTNL(); 50 51 if (!have_ifidx && !have_wpan_dev_id) 52 return ERR_PTR(-EINVAL); 53 54 if (have_ifidx) 55 ifidx = nla_get_u32(attrs[NL802154_ATTR_IFINDEX]); 56 if (have_wpan_dev_id) { 57 wpan_dev_id = nla_get_u64(attrs[NL802154_ATTR_WPAN_DEV]); 58 wpan_phy_idx = wpan_dev_id >> 32; 59 } 60 61 list_for_each_entry(rdev, &cfg802154_rdev_list, list) { 62 struct wpan_dev *wpan_dev; 63 64 if (wpan_phy_net(&rdev->wpan_phy) != netns) 65 continue; 66 67 if (have_wpan_dev_id && rdev->wpan_phy_idx != wpan_phy_idx) 68 continue; 69 70 list_for_each_entry(wpan_dev, &rdev->wpan_dev_list, list) { 71 if (have_ifidx && wpan_dev->netdev && 72 wpan_dev->netdev->ifindex == ifidx) { 73 result = wpan_dev; 74 break; 75 } 76 if (have_wpan_dev_id && 77 wpan_dev->identifier == (u32)wpan_dev_id) { 78 result = wpan_dev; 79 break; 80 } 81 } 82 83 if (result) 84 break; 85 } 86 87 if (result) 88 return result; 89 90 return ERR_PTR(-ENODEV); 91 } 92 93 static struct cfg802154_registered_device * 94 __cfg802154_rdev_from_attrs(struct net *netns, struct nlattr **attrs) 95 { 96 struct cfg802154_registered_device *rdev = NULL, *tmp; 97 struct net_device *netdev; 98 99 ASSERT_RTNL(); 100 101 if (!attrs[NL802154_ATTR_WPAN_PHY] && 102 !attrs[NL802154_ATTR_IFINDEX] && 103 !attrs[NL802154_ATTR_WPAN_DEV]) 104 return ERR_PTR(-EINVAL); 105 106 if (attrs[NL802154_ATTR_WPAN_PHY]) 107 rdev = cfg802154_rdev_by_wpan_phy_idx( 108 nla_get_u32(attrs[NL802154_ATTR_WPAN_PHY])); 109 110 if (attrs[NL802154_ATTR_WPAN_DEV]) { 111 u64 wpan_dev_id = nla_get_u64(attrs[NL802154_ATTR_WPAN_DEV]); 112 struct wpan_dev *wpan_dev; 113 bool found = false; 114 115 tmp = cfg802154_rdev_by_wpan_phy_idx(wpan_dev_id >> 32); 116 if (tmp) { 117 /* make sure wpan_dev exists */ 118 list_for_each_entry(wpan_dev, &tmp->wpan_dev_list, list) { 119 if (wpan_dev->identifier != (u32)wpan_dev_id) 120 continue; 121 found = true; 122 break; 123 } 124 125 if (!found) 126 tmp = NULL; 127 128 if (rdev && tmp != rdev) 129 return ERR_PTR(-EINVAL); 130 rdev = tmp; 131 } 132 } 133 134 if (attrs[NL802154_ATTR_IFINDEX]) { 135 int ifindex = nla_get_u32(attrs[NL802154_ATTR_IFINDEX]); 136 137 netdev = __dev_get_by_index(netns, ifindex); 138 if (netdev) { 139 if (netdev->ieee802154_ptr) 140 tmp = wpan_phy_to_rdev( 141 netdev->ieee802154_ptr->wpan_phy); 142 else 143 tmp = NULL; 144 145 /* not wireless device -- return error */ 146 if (!tmp) 147 return ERR_PTR(-EINVAL); 148 149 /* mismatch -- return error */ 150 if (rdev && tmp != rdev) 151 return ERR_PTR(-EINVAL); 152 153 rdev = tmp; 154 } 155 } 156 157 if (!rdev) 158 return ERR_PTR(-ENODEV); 159 160 if (netns != wpan_phy_net(&rdev->wpan_phy)) 161 return ERR_PTR(-ENODEV); 162 163 return rdev; 164 } 165 166 /* This function returns a pointer to the driver 167 * that the genl_info item that is passed refers to. 168 * 169 * The result of this can be a PTR_ERR and hence must 170 * be checked with IS_ERR() for errors. 171 */ 172 static struct cfg802154_registered_device * 173 cfg802154_get_dev_from_info(struct net *netns, struct genl_info *info) 174 { 175 return __cfg802154_rdev_from_attrs(netns, info->attrs); 176 } 177 178 /* policy for the attributes */ 179 static const struct nla_policy nl802154_policy[NL802154_ATTR_MAX+1] = { 180 [NL802154_ATTR_WPAN_PHY] = { .type = NLA_U32 }, 181 [NL802154_ATTR_WPAN_PHY_NAME] = { .type = NLA_NUL_STRING, 182 .len = 20-1 }, 183 184 [NL802154_ATTR_IFINDEX] = { .type = NLA_U32 }, 185 [NL802154_ATTR_IFTYPE] = { .type = NLA_U32 }, 186 [NL802154_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 }, 187 188 [NL802154_ATTR_WPAN_DEV] = { .type = NLA_U64 }, 189 190 [NL802154_ATTR_PAGE] = NLA_POLICY_MAX(NLA_U8, IEEE802154_MAX_PAGE), 191 [NL802154_ATTR_CHANNEL] = NLA_POLICY_MAX(NLA_U8, IEEE802154_MAX_CHANNEL), 192 193 [NL802154_ATTR_TX_POWER] = { .type = NLA_S32, }, 194 195 [NL802154_ATTR_CCA_MODE] = { .type = NLA_U32, }, 196 [NL802154_ATTR_CCA_OPT] = { .type = NLA_U32, }, 197 [NL802154_ATTR_CCA_ED_LEVEL] = { .type = NLA_S32, }, 198 199 [NL802154_ATTR_SUPPORTED_CHANNEL] = { .type = NLA_U32, }, 200 201 [NL802154_ATTR_PAN_ID] = { .type = NLA_U16, }, 202 [NL802154_ATTR_EXTENDED_ADDR] = { .type = NLA_U64 }, 203 [NL802154_ATTR_SHORT_ADDR] = { .type = NLA_U16, }, 204 205 [NL802154_ATTR_MIN_BE] = { .type = NLA_U8, }, 206 [NL802154_ATTR_MAX_BE] = { .type = NLA_U8, }, 207 [NL802154_ATTR_MAX_CSMA_BACKOFFS] = { .type = NLA_U8, }, 208 209 [NL802154_ATTR_MAX_FRAME_RETRIES] = { .type = NLA_S8, }, 210 211 [NL802154_ATTR_LBT_MODE] = { .type = NLA_U8, }, 212 213 [NL802154_ATTR_WPAN_PHY_CAPS] = { .type = NLA_NESTED }, 214 215 [NL802154_ATTR_SUPPORTED_COMMANDS] = { .type = NLA_NESTED }, 216 217 [NL802154_ATTR_ACKREQ_DEFAULT] = { .type = NLA_U8 }, 218 219 [NL802154_ATTR_PID] = { .type = NLA_U32 }, 220 [NL802154_ATTR_NETNS_FD] = { .type = NLA_U32 }, 221 222 [NL802154_ATTR_COORDINATOR] = { .type = NLA_NESTED }, 223 224 [NL802154_ATTR_SCAN_TYPE] = 225 NLA_POLICY_RANGE(NLA_U8, NL802154_SCAN_ED, NL802154_SCAN_RIT_PASSIVE), 226 [NL802154_ATTR_SCAN_CHANNELS] = 227 NLA_POLICY_MASK(NLA_U32, GENMASK(IEEE802154_MAX_CHANNEL, 0)), 228 [NL802154_ATTR_SCAN_PREAMBLE_CODES] = { .type = NLA_REJECT }, 229 [NL802154_ATTR_SCAN_MEAN_PRF] = { .type = NLA_REJECT }, 230 [NL802154_ATTR_SCAN_DURATION] = 231 NLA_POLICY_MAX(NLA_U8, IEEE802154_MAX_SCAN_DURATION), 232 [NL802154_ATTR_SCAN_DONE_REASON] = 233 NLA_POLICY_RANGE(NLA_U8, NL802154_SCAN_DONE_REASON_FINISHED, 234 NL802154_SCAN_DONE_REASON_ABORTED), 235 [NL802154_ATTR_BEACON_INTERVAL] = 236 NLA_POLICY_MAX(NLA_U8, IEEE802154_ACTIVE_SCAN_DURATION), 237 238 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL 239 [NL802154_ATTR_SEC_ENABLED] = { .type = NLA_U8, }, 240 [NL802154_ATTR_SEC_OUT_LEVEL] = { .type = NLA_U32, }, 241 [NL802154_ATTR_SEC_OUT_KEY_ID] = { .type = NLA_NESTED, }, 242 [NL802154_ATTR_SEC_FRAME_COUNTER] = { .type = NLA_U32 }, 243 244 [NL802154_ATTR_SEC_LEVEL] = { .type = NLA_NESTED }, 245 [NL802154_ATTR_SEC_DEVICE] = { .type = NLA_NESTED }, 246 [NL802154_ATTR_SEC_DEVKEY] = { .type = NLA_NESTED }, 247 [NL802154_ATTR_SEC_KEY] = { .type = NLA_NESTED }, 248 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */ 249 }; 250 251 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL 252 static int 253 nl802154_prepare_wpan_dev_dump(struct sk_buff *skb, 254 struct netlink_callback *cb, 255 struct cfg802154_registered_device **rdev, 256 struct wpan_dev **wpan_dev) 257 { 258 const struct genl_dumpit_info *info = genl_dumpit_info(cb); 259 int err; 260 261 rtnl_lock(); 262 263 if (!cb->args[0]) { 264 *wpan_dev = __cfg802154_wpan_dev_from_attrs(sock_net(skb->sk), 265 info->info.attrs); 266 if (IS_ERR(*wpan_dev)) { 267 err = PTR_ERR(*wpan_dev); 268 goto out_unlock; 269 } 270 *rdev = wpan_phy_to_rdev((*wpan_dev)->wpan_phy); 271 /* 0 is the first index - add 1 to parse only once */ 272 cb->args[0] = (*rdev)->wpan_phy_idx + 1; 273 cb->args[1] = (*wpan_dev)->identifier; 274 } else { 275 /* subtract the 1 again here */ 276 struct wpan_phy *wpan_phy = wpan_phy_idx_to_wpan_phy(cb->args[0] - 1); 277 struct wpan_dev *tmp; 278 279 if (!wpan_phy) { 280 err = -ENODEV; 281 goto out_unlock; 282 } 283 *rdev = wpan_phy_to_rdev(wpan_phy); 284 *wpan_dev = NULL; 285 286 list_for_each_entry(tmp, &(*rdev)->wpan_dev_list, list) { 287 if (tmp->identifier == cb->args[1]) { 288 *wpan_dev = tmp; 289 break; 290 } 291 } 292 293 if (!*wpan_dev) { 294 err = -ENODEV; 295 goto out_unlock; 296 } 297 } 298 299 return 0; 300 out_unlock: 301 rtnl_unlock(); 302 return err; 303 } 304 305 static void 306 nl802154_finish_wpan_dev_dump(struct cfg802154_registered_device *rdev) 307 { 308 rtnl_unlock(); 309 } 310 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */ 311 312 /* message building helper */ 313 static inline void *nl802154hdr_put(struct sk_buff *skb, u32 portid, u32 seq, 314 int flags, u8 cmd) 315 { 316 /* since there is no private header just add the generic one */ 317 return genlmsg_put(skb, portid, seq, &nl802154_fam, flags, cmd); 318 } 319 320 static int 321 nl802154_put_flags(struct sk_buff *msg, int attr, u32 mask) 322 { 323 struct nlattr *nl_flags = nla_nest_start_noflag(msg, attr); 324 int i; 325 326 if (!nl_flags) 327 return -ENOBUFS; 328 329 i = 0; 330 while (mask) { 331 if ((mask & 1) && nla_put_flag(msg, i)) 332 return -ENOBUFS; 333 334 mask >>= 1; 335 i++; 336 } 337 338 nla_nest_end(msg, nl_flags); 339 return 0; 340 } 341 342 static int 343 nl802154_send_wpan_phy_channels(struct cfg802154_registered_device *rdev, 344 struct sk_buff *msg) 345 { 346 struct nlattr *nl_page; 347 unsigned long page; 348 349 nl_page = nla_nest_start_noflag(msg, NL802154_ATTR_CHANNELS_SUPPORTED); 350 if (!nl_page) 351 return -ENOBUFS; 352 353 for (page = 0; page <= IEEE802154_MAX_PAGE; page++) { 354 if (nla_put_u32(msg, NL802154_ATTR_SUPPORTED_CHANNEL, 355 rdev->wpan_phy.supported.channels[page])) 356 return -ENOBUFS; 357 } 358 nla_nest_end(msg, nl_page); 359 360 return 0; 361 } 362 363 static int 364 nl802154_put_capabilities(struct sk_buff *msg, 365 struct cfg802154_registered_device *rdev) 366 { 367 const struct wpan_phy_supported *caps = &rdev->wpan_phy.supported; 368 struct nlattr *nl_caps, *nl_channels; 369 int i; 370 371 nl_caps = nla_nest_start_noflag(msg, NL802154_ATTR_WPAN_PHY_CAPS); 372 if (!nl_caps) 373 return -ENOBUFS; 374 375 nl_channels = nla_nest_start_noflag(msg, NL802154_CAP_ATTR_CHANNELS); 376 if (!nl_channels) 377 return -ENOBUFS; 378 379 for (i = 0; i <= IEEE802154_MAX_PAGE; i++) { 380 if (caps->channels[i]) { 381 if (nl802154_put_flags(msg, i, caps->channels[i])) 382 return -ENOBUFS; 383 } 384 } 385 386 nla_nest_end(msg, nl_channels); 387 388 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL) { 389 struct nlattr *nl_ed_lvls; 390 391 nl_ed_lvls = nla_nest_start_noflag(msg, 392 NL802154_CAP_ATTR_CCA_ED_LEVELS); 393 if (!nl_ed_lvls) 394 return -ENOBUFS; 395 396 for (i = 0; i < caps->cca_ed_levels_size; i++) { 397 if (nla_put_s32(msg, i, caps->cca_ed_levels[i])) 398 return -ENOBUFS; 399 } 400 401 nla_nest_end(msg, nl_ed_lvls); 402 } 403 404 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER) { 405 struct nlattr *nl_tx_pwrs; 406 407 nl_tx_pwrs = nla_nest_start_noflag(msg, 408 NL802154_CAP_ATTR_TX_POWERS); 409 if (!nl_tx_pwrs) 410 return -ENOBUFS; 411 412 for (i = 0; i < caps->tx_powers_size; i++) { 413 if (nla_put_s32(msg, i, caps->tx_powers[i])) 414 return -ENOBUFS; 415 } 416 417 nla_nest_end(msg, nl_tx_pwrs); 418 } 419 420 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE) { 421 if (nl802154_put_flags(msg, NL802154_CAP_ATTR_CCA_MODES, 422 caps->cca_modes) || 423 nl802154_put_flags(msg, NL802154_CAP_ATTR_CCA_OPTS, 424 caps->cca_opts)) 425 return -ENOBUFS; 426 } 427 428 if (nla_put_u8(msg, NL802154_CAP_ATTR_MIN_MINBE, caps->min_minbe) || 429 nla_put_u8(msg, NL802154_CAP_ATTR_MAX_MINBE, caps->max_minbe) || 430 nla_put_u8(msg, NL802154_CAP_ATTR_MIN_MAXBE, caps->min_maxbe) || 431 nla_put_u8(msg, NL802154_CAP_ATTR_MAX_MAXBE, caps->max_maxbe) || 432 nla_put_u8(msg, NL802154_CAP_ATTR_MIN_CSMA_BACKOFFS, 433 caps->min_csma_backoffs) || 434 nla_put_u8(msg, NL802154_CAP_ATTR_MAX_CSMA_BACKOFFS, 435 caps->max_csma_backoffs) || 436 nla_put_s8(msg, NL802154_CAP_ATTR_MIN_FRAME_RETRIES, 437 caps->min_frame_retries) || 438 nla_put_s8(msg, NL802154_CAP_ATTR_MAX_FRAME_RETRIES, 439 caps->max_frame_retries) || 440 nl802154_put_flags(msg, NL802154_CAP_ATTR_IFTYPES, 441 caps->iftypes) || 442 nla_put_u32(msg, NL802154_CAP_ATTR_LBT, caps->lbt)) 443 return -ENOBUFS; 444 445 nla_nest_end(msg, nl_caps); 446 447 return 0; 448 } 449 450 static int nl802154_send_wpan_phy(struct cfg802154_registered_device *rdev, 451 enum nl802154_commands cmd, 452 struct sk_buff *msg, u32 portid, u32 seq, 453 int flags) 454 { 455 struct nlattr *nl_cmds; 456 void *hdr; 457 int i; 458 459 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd); 460 if (!hdr) 461 return -ENOBUFS; 462 463 if (nla_put_u32(msg, NL802154_ATTR_WPAN_PHY, rdev->wpan_phy_idx) || 464 nla_put_string(msg, NL802154_ATTR_WPAN_PHY_NAME, 465 wpan_phy_name(&rdev->wpan_phy)) || 466 nla_put_u32(msg, NL802154_ATTR_GENERATION, 467 cfg802154_rdev_list_generation)) 468 goto nla_put_failure; 469 470 if (cmd != NL802154_CMD_NEW_WPAN_PHY) 471 goto finish; 472 473 /* DUMP PHY PIB */ 474 475 /* current channel settings */ 476 if (nla_put_u8(msg, NL802154_ATTR_PAGE, 477 rdev->wpan_phy.current_page) || 478 nla_put_u8(msg, NL802154_ATTR_CHANNEL, 479 rdev->wpan_phy.current_channel)) 480 goto nla_put_failure; 481 482 /* TODO remove this behaviour, we still keep support it for a while 483 * so users can change the behaviour to the new one. 484 */ 485 if (nl802154_send_wpan_phy_channels(rdev, msg)) 486 goto nla_put_failure; 487 488 /* cca mode */ 489 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE) { 490 if (nla_put_u32(msg, NL802154_ATTR_CCA_MODE, 491 rdev->wpan_phy.cca.mode)) 492 goto nla_put_failure; 493 494 if (rdev->wpan_phy.cca.mode == NL802154_CCA_ENERGY_CARRIER) { 495 if (nla_put_u32(msg, NL802154_ATTR_CCA_OPT, 496 rdev->wpan_phy.cca.opt)) 497 goto nla_put_failure; 498 } 499 } 500 501 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER) { 502 if (nla_put_s32(msg, NL802154_ATTR_TX_POWER, 503 rdev->wpan_phy.transmit_power)) 504 goto nla_put_failure; 505 } 506 507 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL) { 508 if (nla_put_s32(msg, NL802154_ATTR_CCA_ED_LEVEL, 509 rdev->wpan_phy.cca_ed_level)) 510 goto nla_put_failure; 511 } 512 513 if (nl802154_put_capabilities(msg, rdev)) 514 goto nla_put_failure; 515 516 nl_cmds = nla_nest_start_noflag(msg, NL802154_ATTR_SUPPORTED_COMMANDS); 517 if (!nl_cmds) 518 goto nla_put_failure; 519 520 i = 0; 521 #define CMD(op, n) \ 522 do { \ 523 if (rdev->ops->op) { \ 524 i++; \ 525 if (nla_put_u32(msg, i, NL802154_CMD_ ## n)) \ 526 goto nla_put_failure; \ 527 } \ 528 } while (0) 529 530 CMD(add_virtual_intf, NEW_INTERFACE); 531 CMD(del_virtual_intf, DEL_INTERFACE); 532 CMD(set_channel, SET_CHANNEL); 533 CMD(set_pan_id, SET_PAN_ID); 534 CMD(set_short_addr, SET_SHORT_ADDR); 535 CMD(set_backoff_exponent, SET_BACKOFF_EXPONENT); 536 CMD(set_max_csma_backoffs, SET_MAX_CSMA_BACKOFFS); 537 CMD(set_max_frame_retries, SET_MAX_FRAME_RETRIES); 538 CMD(set_lbt_mode, SET_LBT_MODE); 539 CMD(set_ackreq_default, SET_ACKREQ_DEFAULT); 540 541 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER) 542 CMD(set_tx_power, SET_TX_POWER); 543 544 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL) 545 CMD(set_cca_ed_level, SET_CCA_ED_LEVEL); 546 547 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE) 548 CMD(set_cca_mode, SET_CCA_MODE); 549 550 #undef CMD 551 nla_nest_end(msg, nl_cmds); 552 553 finish: 554 genlmsg_end(msg, hdr); 555 return 0; 556 557 nla_put_failure: 558 genlmsg_cancel(msg, hdr); 559 return -EMSGSIZE; 560 } 561 562 struct nl802154_dump_wpan_phy_state { 563 s64 filter_wpan_phy; 564 long start; 565 566 }; 567 568 static int nl802154_dump_wpan_phy_parse(struct sk_buff *skb, 569 struct netlink_callback *cb, 570 struct nl802154_dump_wpan_phy_state *state) 571 { 572 const struct genl_dumpit_info *info = genl_dumpit_info(cb); 573 struct nlattr **tb = info->info.attrs; 574 575 if (tb[NL802154_ATTR_WPAN_PHY]) 576 state->filter_wpan_phy = nla_get_u32(tb[NL802154_ATTR_WPAN_PHY]); 577 if (tb[NL802154_ATTR_WPAN_DEV]) 578 state->filter_wpan_phy = nla_get_u64(tb[NL802154_ATTR_WPAN_DEV]) >> 32; 579 if (tb[NL802154_ATTR_IFINDEX]) { 580 struct net_device *netdev; 581 struct cfg802154_registered_device *rdev; 582 int ifidx = nla_get_u32(tb[NL802154_ATTR_IFINDEX]); 583 584 netdev = __dev_get_by_index(&init_net, ifidx); 585 if (!netdev) 586 return -ENODEV; 587 if (netdev->ieee802154_ptr) { 588 rdev = wpan_phy_to_rdev( 589 netdev->ieee802154_ptr->wpan_phy); 590 state->filter_wpan_phy = rdev->wpan_phy_idx; 591 } 592 } 593 594 return 0; 595 } 596 597 static int 598 nl802154_dump_wpan_phy(struct sk_buff *skb, struct netlink_callback *cb) 599 { 600 int idx = 0, ret; 601 struct nl802154_dump_wpan_phy_state *state = (void *)cb->args[0]; 602 struct cfg802154_registered_device *rdev; 603 604 rtnl_lock(); 605 if (!state) { 606 state = kzalloc(sizeof(*state), GFP_KERNEL); 607 if (!state) { 608 rtnl_unlock(); 609 return -ENOMEM; 610 } 611 state->filter_wpan_phy = -1; 612 ret = nl802154_dump_wpan_phy_parse(skb, cb, state); 613 if (ret) { 614 kfree(state); 615 rtnl_unlock(); 616 return ret; 617 } 618 cb->args[0] = (long)state; 619 } 620 621 list_for_each_entry(rdev, &cfg802154_rdev_list, list) { 622 if (!net_eq(wpan_phy_net(&rdev->wpan_phy), sock_net(skb->sk))) 623 continue; 624 if (++idx <= state->start) 625 continue; 626 if (state->filter_wpan_phy != -1 && 627 state->filter_wpan_phy != rdev->wpan_phy_idx) 628 continue; 629 /* attempt to fit multiple wpan_phy data chunks into the skb */ 630 ret = nl802154_send_wpan_phy(rdev, 631 NL802154_CMD_NEW_WPAN_PHY, 632 skb, 633 NETLINK_CB(cb->skb).portid, 634 cb->nlh->nlmsg_seq, NLM_F_MULTI); 635 if (ret < 0) { 636 if ((ret == -ENOBUFS || ret == -EMSGSIZE) && 637 !skb->len && cb->min_dump_alloc < 4096) { 638 cb->min_dump_alloc = 4096; 639 rtnl_unlock(); 640 return 1; 641 } 642 idx--; 643 break; 644 } 645 break; 646 } 647 rtnl_unlock(); 648 649 state->start = idx; 650 651 return skb->len; 652 } 653 654 static int nl802154_dump_wpan_phy_done(struct netlink_callback *cb) 655 { 656 kfree((void *)cb->args[0]); 657 return 0; 658 } 659 660 static int nl802154_get_wpan_phy(struct sk_buff *skb, struct genl_info *info) 661 { 662 struct sk_buff *msg; 663 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 664 665 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); 666 if (!msg) 667 return -ENOMEM; 668 669 if (nl802154_send_wpan_phy(rdev, NL802154_CMD_NEW_WPAN_PHY, msg, 670 info->snd_portid, info->snd_seq, 0) < 0) { 671 nlmsg_free(msg); 672 return -ENOBUFS; 673 } 674 675 return genlmsg_reply(msg, info); 676 } 677 678 static inline u64 wpan_dev_id(struct wpan_dev *wpan_dev) 679 { 680 return (u64)wpan_dev->identifier | 681 ((u64)wpan_phy_to_rdev(wpan_dev->wpan_phy)->wpan_phy_idx << 32); 682 } 683 684 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL 685 #include <net/ieee802154_netdev.h> 686 687 static int 688 ieee802154_llsec_send_key_id(struct sk_buff *msg, 689 const struct ieee802154_llsec_key_id *desc) 690 { 691 struct nlattr *nl_dev_addr; 692 693 if (nla_put_u32(msg, NL802154_KEY_ID_ATTR_MODE, desc->mode)) 694 return -ENOBUFS; 695 696 switch (desc->mode) { 697 case NL802154_KEY_ID_MODE_IMPLICIT: 698 nl_dev_addr = nla_nest_start_noflag(msg, 699 NL802154_KEY_ID_ATTR_IMPLICIT); 700 if (!nl_dev_addr) 701 return -ENOBUFS; 702 703 if (nla_put_le16(msg, NL802154_DEV_ADDR_ATTR_PAN_ID, 704 desc->device_addr.pan_id) || 705 nla_put_u32(msg, NL802154_DEV_ADDR_ATTR_MODE, 706 desc->device_addr.mode)) 707 return -ENOBUFS; 708 709 switch (desc->device_addr.mode) { 710 case NL802154_DEV_ADDR_SHORT: 711 if (nla_put_le16(msg, NL802154_DEV_ADDR_ATTR_SHORT, 712 desc->device_addr.short_addr)) 713 return -ENOBUFS; 714 break; 715 case NL802154_DEV_ADDR_EXTENDED: 716 if (nla_put_le64(msg, NL802154_DEV_ADDR_ATTR_EXTENDED, 717 desc->device_addr.extended_addr, 718 NL802154_DEV_ADDR_ATTR_PAD)) 719 return -ENOBUFS; 720 break; 721 default: 722 /* userspace should handle unknown */ 723 break; 724 } 725 726 nla_nest_end(msg, nl_dev_addr); 727 break; 728 case NL802154_KEY_ID_MODE_INDEX: 729 break; 730 case NL802154_KEY_ID_MODE_INDEX_SHORT: 731 /* TODO renmae short_source? */ 732 if (nla_put_le32(msg, NL802154_KEY_ID_ATTR_SOURCE_SHORT, 733 desc->short_source)) 734 return -ENOBUFS; 735 break; 736 case NL802154_KEY_ID_MODE_INDEX_EXTENDED: 737 if (nla_put_le64(msg, NL802154_KEY_ID_ATTR_SOURCE_EXTENDED, 738 desc->extended_source, 739 NL802154_KEY_ID_ATTR_PAD)) 740 return -ENOBUFS; 741 break; 742 default: 743 /* userspace should handle unknown */ 744 break; 745 } 746 747 /* TODO key_id to key_idx ? Check naming */ 748 if (desc->mode != NL802154_KEY_ID_MODE_IMPLICIT) { 749 if (nla_put_u8(msg, NL802154_KEY_ID_ATTR_INDEX, desc->id)) 750 return -ENOBUFS; 751 } 752 753 return 0; 754 } 755 756 static int nl802154_get_llsec_params(struct sk_buff *msg, 757 struct cfg802154_registered_device *rdev, 758 struct wpan_dev *wpan_dev) 759 { 760 struct nlattr *nl_key_id; 761 struct ieee802154_llsec_params params; 762 int ret; 763 764 ret = rdev_get_llsec_params(rdev, wpan_dev, ¶ms); 765 if (ret < 0) 766 return ret; 767 768 if (nla_put_u8(msg, NL802154_ATTR_SEC_ENABLED, params.enabled) || 769 nla_put_u32(msg, NL802154_ATTR_SEC_OUT_LEVEL, params.out_level) || 770 nla_put_be32(msg, NL802154_ATTR_SEC_FRAME_COUNTER, 771 params.frame_counter)) 772 return -ENOBUFS; 773 774 nl_key_id = nla_nest_start_noflag(msg, NL802154_ATTR_SEC_OUT_KEY_ID); 775 if (!nl_key_id) 776 return -ENOBUFS; 777 778 ret = ieee802154_llsec_send_key_id(msg, ¶ms.out_key); 779 if (ret < 0) 780 return ret; 781 782 nla_nest_end(msg, nl_key_id); 783 784 return 0; 785 } 786 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */ 787 788 static int 789 nl802154_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags, 790 struct cfg802154_registered_device *rdev, 791 struct wpan_dev *wpan_dev) 792 { 793 struct net_device *dev = wpan_dev->netdev; 794 void *hdr; 795 796 hdr = nl802154hdr_put(msg, portid, seq, flags, 797 NL802154_CMD_NEW_INTERFACE); 798 if (!hdr) 799 return -1; 800 801 if (dev && 802 (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex) || 803 nla_put_string(msg, NL802154_ATTR_IFNAME, dev->name))) 804 goto nla_put_failure; 805 806 if (nla_put_u32(msg, NL802154_ATTR_WPAN_PHY, rdev->wpan_phy_idx) || 807 nla_put_u32(msg, NL802154_ATTR_IFTYPE, wpan_dev->iftype) || 808 nla_put_u64_64bit(msg, NL802154_ATTR_WPAN_DEV, 809 wpan_dev_id(wpan_dev), NL802154_ATTR_PAD) || 810 nla_put_u32(msg, NL802154_ATTR_GENERATION, 811 rdev->devlist_generation ^ 812 (cfg802154_rdev_list_generation << 2))) 813 goto nla_put_failure; 814 815 /* address settings */ 816 if (nla_put_le64(msg, NL802154_ATTR_EXTENDED_ADDR, 817 wpan_dev->extended_addr, 818 NL802154_ATTR_PAD) || 819 nla_put_le16(msg, NL802154_ATTR_SHORT_ADDR, 820 wpan_dev->short_addr) || 821 nla_put_le16(msg, NL802154_ATTR_PAN_ID, wpan_dev->pan_id)) 822 goto nla_put_failure; 823 824 /* ARET handling */ 825 if (nla_put_s8(msg, NL802154_ATTR_MAX_FRAME_RETRIES, 826 wpan_dev->frame_retries) || 827 nla_put_u8(msg, NL802154_ATTR_MAX_BE, wpan_dev->max_be) || 828 nla_put_u8(msg, NL802154_ATTR_MAX_CSMA_BACKOFFS, 829 wpan_dev->csma_retries) || 830 nla_put_u8(msg, NL802154_ATTR_MIN_BE, wpan_dev->min_be)) 831 goto nla_put_failure; 832 833 /* listen before transmit */ 834 if (nla_put_u8(msg, NL802154_ATTR_LBT_MODE, wpan_dev->lbt)) 835 goto nla_put_failure; 836 837 /* ackreq default behaviour */ 838 if (nla_put_u8(msg, NL802154_ATTR_ACKREQ_DEFAULT, wpan_dev->ackreq)) 839 goto nla_put_failure; 840 841 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL 842 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) 843 goto out; 844 845 if (nl802154_get_llsec_params(msg, rdev, wpan_dev) < 0) 846 goto nla_put_failure; 847 848 out: 849 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */ 850 851 genlmsg_end(msg, hdr); 852 return 0; 853 854 nla_put_failure: 855 genlmsg_cancel(msg, hdr); 856 return -EMSGSIZE; 857 } 858 859 static int 860 nl802154_dump_interface(struct sk_buff *skb, struct netlink_callback *cb) 861 { 862 int wp_idx = 0; 863 int if_idx = 0; 864 int wp_start = cb->args[0]; 865 int if_start = cb->args[1]; 866 struct cfg802154_registered_device *rdev; 867 struct wpan_dev *wpan_dev; 868 869 rtnl_lock(); 870 list_for_each_entry(rdev, &cfg802154_rdev_list, list) { 871 if (!net_eq(wpan_phy_net(&rdev->wpan_phy), sock_net(skb->sk))) 872 continue; 873 if (wp_idx < wp_start) { 874 wp_idx++; 875 continue; 876 } 877 if_idx = 0; 878 879 list_for_each_entry(wpan_dev, &rdev->wpan_dev_list, list) { 880 if (if_idx < if_start) { 881 if_idx++; 882 continue; 883 } 884 if (nl802154_send_iface(skb, NETLINK_CB(cb->skb).portid, 885 cb->nlh->nlmsg_seq, NLM_F_MULTI, 886 rdev, wpan_dev) < 0) { 887 goto out; 888 } 889 if_idx++; 890 } 891 892 wp_idx++; 893 } 894 out: 895 rtnl_unlock(); 896 897 cb->args[0] = wp_idx; 898 cb->args[1] = if_idx; 899 900 return skb->len; 901 } 902 903 static int nl802154_get_interface(struct sk_buff *skb, struct genl_info *info) 904 { 905 struct sk_buff *msg; 906 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 907 struct wpan_dev *wdev = info->user_ptr[1]; 908 909 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); 910 if (!msg) 911 return -ENOMEM; 912 913 if (nl802154_send_iface(msg, info->snd_portid, info->snd_seq, 0, 914 rdev, wdev) < 0) { 915 nlmsg_free(msg); 916 return -ENOBUFS; 917 } 918 919 return genlmsg_reply(msg, info); 920 } 921 922 static int nl802154_new_interface(struct sk_buff *skb, struct genl_info *info) 923 { 924 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 925 enum nl802154_iftype type = NL802154_IFTYPE_UNSPEC; 926 __le64 extended_addr = cpu_to_le64(0x0000000000000000ULL); 927 928 /* TODO avoid failing a new interface 929 * creation due to pending removal? 930 */ 931 932 if (!info->attrs[NL802154_ATTR_IFNAME]) 933 return -EINVAL; 934 935 if (info->attrs[NL802154_ATTR_IFTYPE]) { 936 type = nla_get_u32(info->attrs[NL802154_ATTR_IFTYPE]); 937 if (type > NL802154_IFTYPE_MAX || 938 !(rdev->wpan_phy.supported.iftypes & BIT(type))) 939 return -EINVAL; 940 } 941 942 if (info->attrs[NL802154_ATTR_EXTENDED_ADDR]) 943 extended_addr = nla_get_le64(info->attrs[NL802154_ATTR_EXTENDED_ADDR]); 944 945 if (!rdev->ops->add_virtual_intf) 946 return -EOPNOTSUPP; 947 948 return rdev_add_virtual_intf(rdev, 949 nla_data(info->attrs[NL802154_ATTR_IFNAME]), 950 NET_NAME_USER, type, extended_addr); 951 } 952 953 static int nl802154_del_interface(struct sk_buff *skb, struct genl_info *info) 954 { 955 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 956 struct wpan_dev *wpan_dev = info->user_ptr[1]; 957 958 if (!rdev->ops->del_virtual_intf) 959 return -EOPNOTSUPP; 960 961 /* If we remove a wpan device without a netdev then clear 962 * user_ptr[1] so that nl802154_post_doit won't dereference it 963 * to check if it needs to do dev_put(). Otherwise it crashes 964 * since the wpan_dev has been freed, unlike with a netdev where 965 * we need the dev_put() for the netdev to really be freed. 966 */ 967 if (!wpan_dev->netdev) 968 info->user_ptr[1] = NULL; 969 970 return rdev_del_virtual_intf(rdev, wpan_dev); 971 } 972 973 static int nl802154_set_channel(struct sk_buff *skb, struct genl_info *info) 974 { 975 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 976 u8 channel, page; 977 978 if (!info->attrs[NL802154_ATTR_PAGE] || 979 !info->attrs[NL802154_ATTR_CHANNEL]) 980 return -EINVAL; 981 982 page = nla_get_u8(info->attrs[NL802154_ATTR_PAGE]); 983 channel = nla_get_u8(info->attrs[NL802154_ATTR_CHANNEL]); 984 985 /* check 802.15.4 constraints */ 986 if (!ieee802154_chan_is_valid(&rdev->wpan_phy, page, channel)) 987 return -EINVAL; 988 989 return rdev_set_channel(rdev, page, channel); 990 } 991 992 static int nl802154_set_cca_mode(struct sk_buff *skb, struct genl_info *info) 993 { 994 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 995 struct wpan_phy_cca cca; 996 997 if (!(rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE)) 998 return -EOPNOTSUPP; 999 1000 if (!info->attrs[NL802154_ATTR_CCA_MODE]) 1001 return -EINVAL; 1002 1003 cca.mode = nla_get_u32(info->attrs[NL802154_ATTR_CCA_MODE]); 1004 /* checking 802.15.4 constraints */ 1005 if (cca.mode < NL802154_CCA_ENERGY || 1006 cca.mode > NL802154_CCA_ATTR_MAX || 1007 !(rdev->wpan_phy.supported.cca_modes & BIT(cca.mode))) 1008 return -EINVAL; 1009 1010 if (cca.mode == NL802154_CCA_ENERGY_CARRIER) { 1011 if (!info->attrs[NL802154_ATTR_CCA_OPT]) 1012 return -EINVAL; 1013 1014 cca.opt = nla_get_u32(info->attrs[NL802154_ATTR_CCA_OPT]); 1015 if (cca.opt > NL802154_CCA_OPT_ATTR_MAX || 1016 !(rdev->wpan_phy.supported.cca_opts & BIT(cca.opt))) 1017 return -EINVAL; 1018 } 1019 1020 return rdev_set_cca_mode(rdev, &cca); 1021 } 1022 1023 static int nl802154_set_cca_ed_level(struct sk_buff *skb, struct genl_info *info) 1024 { 1025 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1026 s32 ed_level; 1027 int i; 1028 1029 if (!(rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL)) 1030 return -EOPNOTSUPP; 1031 1032 if (!info->attrs[NL802154_ATTR_CCA_ED_LEVEL]) 1033 return -EINVAL; 1034 1035 ed_level = nla_get_s32(info->attrs[NL802154_ATTR_CCA_ED_LEVEL]); 1036 1037 for (i = 0; i < rdev->wpan_phy.supported.cca_ed_levels_size; i++) { 1038 if (ed_level == rdev->wpan_phy.supported.cca_ed_levels[i]) 1039 return rdev_set_cca_ed_level(rdev, ed_level); 1040 } 1041 1042 return -EINVAL; 1043 } 1044 1045 static int nl802154_set_tx_power(struct sk_buff *skb, struct genl_info *info) 1046 { 1047 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1048 s32 power; 1049 int i; 1050 1051 if (!(rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER)) 1052 return -EOPNOTSUPP; 1053 1054 if (!info->attrs[NL802154_ATTR_TX_POWER]) 1055 return -EINVAL; 1056 1057 power = nla_get_s32(info->attrs[NL802154_ATTR_TX_POWER]); 1058 1059 for (i = 0; i < rdev->wpan_phy.supported.tx_powers_size; i++) { 1060 if (power == rdev->wpan_phy.supported.tx_powers[i]) 1061 return rdev_set_tx_power(rdev, power); 1062 } 1063 1064 return -EINVAL; 1065 } 1066 1067 static int nl802154_set_pan_id(struct sk_buff *skb, struct genl_info *info) 1068 { 1069 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1070 struct net_device *dev = info->user_ptr[1]; 1071 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1072 __le16 pan_id; 1073 1074 /* conflict here while tx/rx calls */ 1075 if (netif_running(dev)) 1076 return -EBUSY; 1077 1078 if (wpan_dev->lowpan_dev) { 1079 if (netif_running(wpan_dev->lowpan_dev)) 1080 return -EBUSY; 1081 } 1082 1083 /* don't change address fields on monitor */ 1084 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR || 1085 !info->attrs[NL802154_ATTR_PAN_ID]) 1086 return -EINVAL; 1087 1088 pan_id = nla_get_le16(info->attrs[NL802154_ATTR_PAN_ID]); 1089 1090 return rdev_set_pan_id(rdev, wpan_dev, pan_id); 1091 } 1092 1093 static int nl802154_set_short_addr(struct sk_buff *skb, struct genl_info *info) 1094 { 1095 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1096 struct net_device *dev = info->user_ptr[1]; 1097 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1098 __le16 short_addr; 1099 1100 /* conflict here while tx/rx calls */ 1101 if (netif_running(dev)) 1102 return -EBUSY; 1103 1104 if (wpan_dev->lowpan_dev) { 1105 if (netif_running(wpan_dev->lowpan_dev)) 1106 return -EBUSY; 1107 } 1108 1109 /* don't change address fields on monitor */ 1110 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR || 1111 !info->attrs[NL802154_ATTR_SHORT_ADDR]) 1112 return -EINVAL; 1113 1114 short_addr = nla_get_le16(info->attrs[NL802154_ATTR_SHORT_ADDR]); 1115 1116 /* TODO 1117 * I am not sure about to check here on broadcast short_addr. 1118 * Broadcast is a valid setting, comment from 802.15.4: 1119 * A value of 0xfffe indicates that the device has 1120 * associated but has not been allocated an address. A 1121 * value of 0xffff indicates that the device does not 1122 * have a short address. 1123 * 1124 * I think we should allow to set these settings but 1125 * don't allow to allow socket communication with it. 1126 */ 1127 if (short_addr == cpu_to_le16(IEEE802154_ADDR_SHORT_UNSPEC) || 1128 short_addr == cpu_to_le16(IEEE802154_ADDR_SHORT_BROADCAST)) 1129 return -EINVAL; 1130 1131 return rdev_set_short_addr(rdev, wpan_dev, short_addr); 1132 } 1133 1134 static int 1135 nl802154_set_backoff_exponent(struct sk_buff *skb, struct genl_info *info) 1136 { 1137 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1138 struct net_device *dev = info->user_ptr[1]; 1139 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1140 u8 min_be, max_be; 1141 1142 /* should be set on netif open inside phy settings */ 1143 if (netif_running(dev)) 1144 return -EBUSY; 1145 1146 if (!info->attrs[NL802154_ATTR_MIN_BE] || 1147 !info->attrs[NL802154_ATTR_MAX_BE]) 1148 return -EINVAL; 1149 1150 min_be = nla_get_u8(info->attrs[NL802154_ATTR_MIN_BE]); 1151 max_be = nla_get_u8(info->attrs[NL802154_ATTR_MAX_BE]); 1152 1153 /* check 802.15.4 constraints */ 1154 if (min_be < rdev->wpan_phy.supported.min_minbe || 1155 min_be > rdev->wpan_phy.supported.max_minbe || 1156 max_be < rdev->wpan_phy.supported.min_maxbe || 1157 max_be > rdev->wpan_phy.supported.max_maxbe || 1158 min_be > max_be) 1159 return -EINVAL; 1160 1161 return rdev_set_backoff_exponent(rdev, wpan_dev, min_be, max_be); 1162 } 1163 1164 static int 1165 nl802154_set_max_csma_backoffs(struct sk_buff *skb, struct genl_info *info) 1166 { 1167 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1168 struct net_device *dev = info->user_ptr[1]; 1169 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1170 u8 max_csma_backoffs; 1171 1172 /* conflict here while other running iface settings */ 1173 if (netif_running(dev)) 1174 return -EBUSY; 1175 1176 if (!info->attrs[NL802154_ATTR_MAX_CSMA_BACKOFFS]) 1177 return -EINVAL; 1178 1179 max_csma_backoffs = nla_get_u8( 1180 info->attrs[NL802154_ATTR_MAX_CSMA_BACKOFFS]); 1181 1182 /* check 802.15.4 constraints */ 1183 if (max_csma_backoffs < rdev->wpan_phy.supported.min_csma_backoffs || 1184 max_csma_backoffs > rdev->wpan_phy.supported.max_csma_backoffs) 1185 return -EINVAL; 1186 1187 return rdev_set_max_csma_backoffs(rdev, wpan_dev, max_csma_backoffs); 1188 } 1189 1190 static int 1191 nl802154_set_max_frame_retries(struct sk_buff *skb, struct genl_info *info) 1192 { 1193 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1194 struct net_device *dev = info->user_ptr[1]; 1195 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1196 s8 max_frame_retries; 1197 1198 if (netif_running(dev)) 1199 return -EBUSY; 1200 1201 if (!info->attrs[NL802154_ATTR_MAX_FRAME_RETRIES]) 1202 return -EINVAL; 1203 1204 max_frame_retries = nla_get_s8( 1205 info->attrs[NL802154_ATTR_MAX_FRAME_RETRIES]); 1206 1207 /* check 802.15.4 constraints */ 1208 if (max_frame_retries < rdev->wpan_phy.supported.min_frame_retries || 1209 max_frame_retries > rdev->wpan_phy.supported.max_frame_retries) 1210 return -EINVAL; 1211 1212 return rdev_set_max_frame_retries(rdev, wpan_dev, max_frame_retries); 1213 } 1214 1215 static int nl802154_set_lbt_mode(struct sk_buff *skb, struct genl_info *info) 1216 { 1217 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1218 struct net_device *dev = info->user_ptr[1]; 1219 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1220 int mode; 1221 1222 if (netif_running(dev)) 1223 return -EBUSY; 1224 1225 if (!info->attrs[NL802154_ATTR_LBT_MODE]) 1226 return -EINVAL; 1227 1228 mode = nla_get_u8(info->attrs[NL802154_ATTR_LBT_MODE]); 1229 1230 if (mode != 0 && mode != 1) 1231 return -EINVAL; 1232 1233 if (!wpan_phy_supported_bool(mode, rdev->wpan_phy.supported.lbt)) 1234 return -EINVAL; 1235 1236 return rdev_set_lbt_mode(rdev, wpan_dev, mode); 1237 } 1238 1239 static int 1240 nl802154_set_ackreq_default(struct sk_buff *skb, struct genl_info *info) 1241 { 1242 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1243 struct net_device *dev = info->user_ptr[1]; 1244 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1245 int ackreq; 1246 1247 if (netif_running(dev)) 1248 return -EBUSY; 1249 1250 if (!info->attrs[NL802154_ATTR_ACKREQ_DEFAULT]) 1251 return -EINVAL; 1252 1253 ackreq = nla_get_u8(info->attrs[NL802154_ATTR_ACKREQ_DEFAULT]); 1254 1255 if (ackreq != 0 && ackreq != 1) 1256 return -EINVAL; 1257 1258 return rdev_set_ackreq_default(rdev, wpan_dev, ackreq); 1259 } 1260 1261 static int nl802154_wpan_phy_netns(struct sk_buff *skb, struct genl_info *info) 1262 { 1263 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1264 struct net *net; 1265 int err; 1266 1267 if (info->attrs[NL802154_ATTR_PID]) { 1268 u32 pid = nla_get_u32(info->attrs[NL802154_ATTR_PID]); 1269 1270 net = get_net_ns_by_pid(pid); 1271 } else if (info->attrs[NL802154_ATTR_NETNS_FD]) { 1272 u32 fd = nla_get_u32(info->attrs[NL802154_ATTR_NETNS_FD]); 1273 1274 net = get_net_ns_by_fd(fd); 1275 } else { 1276 return -EINVAL; 1277 } 1278 1279 if (IS_ERR(net)) 1280 return PTR_ERR(net); 1281 1282 err = 0; 1283 1284 /* check if anything to do */ 1285 if (!net_eq(wpan_phy_net(&rdev->wpan_phy), net)) 1286 err = cfg802154_switch_netns(rdev, net); 1287 1288 put_net(net); 1289 return err; 1290 } 1291 1292 static int nl802154_prep_scan_event_msg(struct sk_buff *msg, 1293 struct cfg802154_registered_device *rdev, 1294 struct wpan_dev *wpan_dev, 1295 u32 portid, u32 seq, int flags, u8 cmd, 1296 struct ieee802154_coord_desc *desc) 1297 { 1298 struct nlattr *nla; 1299 void *hdr; 1300 1301 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd); 1302 if (!hdr) 1303 return -ENOBUFS; 1304 1305 if (nla_put_u32(msg, NL802154_ATTR_WPAN_PHY, rdev->wpan_phy_idx)) 1306 goto nla_put_failure; 1307 1308 if (wpan_dev->netdev && 1309 nla_put_u32(msg, NL802154_ATTR_IFINDEX, wpan_dev->netdev->ifindex)) 1310 goto nla_put_failure; 1311 1312 if (nla_put_u64_64bit(msg, NL802154_ATTR_WPAN_DEV, 1313 wpan_dev_id(wpan_dev), NL802154_ATTR_PAD)) 1314 goto nla_put_failure; 1315 1316 nla = nla_nest_start_noflag(msg, NL802154_ATTR_COORDINATOR); 1317 if (!nla) 1318 goto nla_put_failure; 1319 1320 if (nla_put(msg, NL802154_COORD_PANID, IEEE802154_PAN_ID_LEN, 1321 &desc->addr.pan_id)) 1322 goto nla_put_failure; 1323 1324 if (desc->addr.mode == IEEE802154_ADDR_SHORT) { 1325 if (nla_put(msg, NL802154_COORD_ADDR, 1326 IEEE802154_SHORT_ADDR_LEN, 1327 &desc->addr.short_addr)) 1328 goto nla_put_failure; 1329 } else { 1330 if (nla_put(msg, NL802154_COORD_ADDR, 1331 IEEE802154_EXTENDED_ADDR_LEN, 1332 &desc->addr.extended_addr)) 1333 goto nla_put_failure; 1334 } 1335 1336 if (nla_put_u8(msg, NL802154_COORD_CHANNEL, desc->channel)) 1337 goto nla_put_failure; 1338 1339 if (nla_put_u8(msg, NL802154_COORD_PAGE, desc->page)) 1340 goto nla_put_failure; 1341 1342 if (nla_put_u16(msg, NL802154_COORD_SUPERFRAME_SPEC, 1343 desc->superframe_spec)) 1344 goto nla_put_failure; 1345 1346 if (nla_put_u8(msg, NL802154_COORD_LINK_QUALITY, desc->link_quality)) 1347 goto nla_put_failure; 1348 1349 if (desc->gts_permit && nla_put_flag(msg, NL802154_COORD_GTS_PERMIT)) 1350 goto nla_put_failure; 1351 1352 /* TODO: NL802154_COORD_PAYLOAD_DATA if any */ 1353 1354 nla_nest_end(msg, nla); 1355 1356 genlmsg_end(msg, hdr); 1357 1358 return 0; 1359 1360 nla_put_failure: 1361 genlmsg_cancel(msg, hdr); 1362 1363 return -EMSGSIZE; 1364 } 1365 1366 int nl802154_scan_event(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, 1367 struct ieee802154_coord_desc *desc) 1368 { 1369 struct cfg802154_registered_device *rdev = wpan_phy_to_rdev(wpan_phy); 1370 struct sk_buff *msg; 1371 int ret; 1372 1373 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC); 1374 if (!msg) 1375 return -ENOMEM; 1376 1377 ret = nl802154_prep_scan_event_msg(msg, rdev, wpan_dev, 0, 0, 0, 1378 NL802154_CMD_SCAN_EVENT, 1379 desc); 1380 if (ret < 0) { 1381 nlmsg_free(msg); 1382 return ret; 1383 } 1384 1385 return genlmsg_multicast_netns(&nl802154_fam, wpan_phy_net(wpan_phy), 1386 msg, 0, NL802154_MCGRP_SCAN, GFP_ATOMIC); 1387 } 1388 EXPORT_SYMBOL_GPL(nl802154_scan_event); 1389 1390 static int nl802154_trigger_scan(struct sk_buff *skb, struct genl_info *info) 1391 { 1392 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1393 struct net_device *dev = info->user_ptr[1]; 1394 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1395 struct wpan_phy *wpan_phy = &rdev->wpan_phy; 1396 struct cfg802154_scan_request *request; 1397 u8 type; 1398 int err; 1399 1400 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) { 1401 NL_SET_ERR_MSG(info->extack, "Monitors are not allowed to perform scans"); 1402 return -EOPNOTSUPP; 1403 } 1404 1405 if (!info->attrs[NL802154_ATTR_SCAN_TYPE]) { 1406 NL_SET_ERR_MSG(info->extack, "Malformed request, missing scan type"); 1407 return -EINVAL; 1408 } 1409 1410 if (wpan_phy->flags & WPAN_PHY_FLAG_DATAGRAMS_ONLY) { 1411 NL_SET_ERR_MSG(info->extack, "PHY only supports datagrams"); 1412 return -EOPNOTSUPP; 1413 } 1414 1415 request = kzalloc(sizeof(*request), GFP_KERNEL); 1416 if (!request) 1417 return -ENOMEM; 1418 1419 request->wpan_dev = wpan_dev; 1420 request->wpan_phy = wpan_phy; 1421 1422 type = nla_get_u8(info->attrs[NL802154_ATTR_SCAN_TYPE]); 1423 switch (type) { 1424 case NL802154_SCAN_ACTIVE: 1425 case NL802154_SCAN_PASSIVE: 1426 request->type = type; 1427 break; 1428 default: 1429 NL_SET_ERR_MSG_FMT(info->extack, "Unsupported scan type: %d", type); 1430 err = -EINVAL; 1431 goto free_request; 1432 } 1433 1434 /* Use current page by default */ 1435 if (info->attrs[NL802154_ATTR_PAGE]) 1436 request->page = nla_get_u8(info->attrs[NL802154_ATTR_PAGE]); 1437 else 1438 request->page = wpan_phy->current_page; 1439 1440 /* Scan all supported channels by default */ 1441 if (info->attrs[NL802154_ATTR_SCAN_CHANNELS]) 1442 request->channels = nla_get_u32(info->attrs[NL802154_ATTR_SCAN_CHANNELS]); 1443 else 1444 request->channels = wpan_phy->supported.channels[request->page]; 1445 1446 /* Use maximum duration order by default */ 1447 if (info->attrs[NL802154_ATTR_SCAN_DURATION]) 1448 request->duration = nla_get_u8(info->attrs[NL802154_ATTR_SCAN_DURATION]); 1449 else 1450 request->duration = IEEE802154_MAX_SCAN_DURATION; 1451 1452 err = rdev_trigger_scan(rdev, request); 1453 if (err) { 1454 pr_err("Failure starting scanning (%d)\n", err); 1455 goto free_request; 1456 } 1457 1458 return 0; 1459 1460 free_request: 1461 kfree(request); 1462 1463 return err; 1464 } 1465 1466 static int nl802154_prep_scan_msg(struct sk_buff *msg, 1467 struct cfg802154_registered_device *rdev, 1468 struct wpan_dev *wpan_dev, u32 portid, 1469 u32 seq, int flags, u8 cmd, u8 arg) 1470 { 1471 void *hdr; 1472 1473 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd); 1474 if (!hdr) 1475 return -ENOBUFS; 1476 1477 if (nla_put_u32(msg, NL802154_ATTR_WPAN_PHY, rdev->wpan_phy_idx)) 1478 goto nla_put_failure; 1479 1480 if (wpan_dev->netdev && 1481 nla_put_u32(msg, NL802154_ATTR_IFINDEX, wpan_dev->netdev->ifindex)) 1482 goto nla_put_failure; 1483 1484 if (nla_put_u64_64bit(msg, NL802154_ATTR_WPAN_DEV, 1485 wpan_dev_id(wpan_dev), NL802154_ATTR_PAD)) 1486 goto nla_put_failure; 1487 1488 if (cmd == NL802154_CMD_SCAN_DONE && 1489 nla_put_u8(msg, NL802154_ATTR_SCAN_DONE_REASON, arg)) 1490 goto nla_put_failure; 1491 1492 genlmsg_end(msg, hdr); 1493 1494 return 0; 1495 1496 nla_put_failure: 1497 genlmsg_cancel(msg, hdr); 1498 1499 return -EMSGSIZE; 1500 } 1501 1502 static int nl802154_send_scan_msg(struct cfg802154_registered_device *rdev, 1503 struct wpan_dev *wpan_dev, u8 cmd, u8 arg) 1504 { 1505 struct sk_buff *msg; 1506 int ret; 1507 1508 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); 1509 if (!msg) 1510 return -ENOMEM; 1511 1512 ret = nl802154_prep_scan_msg(msg, rdev, wpan_dev, 0, 0, 0, cmd, arg); 1513 if (ret < 0) { 1514 nlmsg_free(msg); 1515 return ret; 1516 } 1517 1518 return genlmsg_multicast_netns(&nl802154_fam, 1519 wpan_phy_net(&rdev->wpan_phy), msg, 0, 1520 NL802154_MCGRP_SCAN, GFP_KERNEL); 1521 } 1522 1523 int nl802154_scan_started(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev) 1524 { 1525 struct cfg802154_registered_device *rdev = wpan_phy_to_rdev(wpan_phy); 1526 int err; 1527 1528 /* Ignore errors when there are no listeners */ 1529 err = nl802154_send_scan_msg(rdev, wpan_dev, NL802154_CMD_TRIGGER_SCAN, 0); 1530 if (err == -ESRCH) 1531 err = 0; 1532 1533 return err; 1534 } 1535 EXPORT_SYMBOL_GPL(nl802154_scan_started); 1536 1537 int nl802154_scan_done(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, 1538 enum nl802154_scan_done_reasons reason) 1539 { 1540 struct cfg802154_registered_device *rdev = wpan_phy_to_rdev(wpan_phy); 1541 int err; 1542 1543 /* Ignore errors when there are no listeners */ 1544 err = nl802154_send_scan_msg(rdev, wpan_dev, NL802154_CMD_SCAN_DONE, reason); 1545 if (err == -ESRCH) 1546 err = 0; 1547 1548 return err; 1549 } 1550 EXPORT_SYMBOL_GPL(nl802154_scan_done); 1551 1552 static int nl802154_abort_scan(struct sk_buff *skb, struct genl_info *info) 1553 { 1554 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1555 struct net_device *dev = info->user_ptr[1]; 1556 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1557 1558 /* Resources are released in the notification helper above */ 1559 return rdev_abort_scan(rdev, wpan_dev); 1560 } 1561 1562 static int 1563 nl802154_send_beacons(struct sk_buff *skb, struct genl_info *info) 1564 { 1565 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1566 struct net_device *dev = info->user_ptr[1]; 1567 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1568 struct wpan_phy *wpan_phy = &rdev->wpan_phy; 1569 struct cfg802154_beacon_request *request; 1570 int err; 1571 1572 if (wpan_dev->iftype != NL802154_IFTYPE_COORD) { 1573 NL_SET_ERR_MSG(info->extack, "Only coordinators can send beacons"); 1574 return -EOPNOTSUPP; 1575 } 1576 1577 if (wpan_dev->pan_id == cpu_to_le16(IEEE802154_PANID_BROADCAST)) { 1578 NL_SET_ERR_MSG(info->extack, "Device is not part of any PAN"); 1579 return -EPERM; 1580 } 1581 1582 if (wpan_phy->flags & WPAN_PHY_FLAG_DATAGRAMS_ONLY) { 1583 NL_SET_ERR_MSG(info->extack, "PHY only supports datagrams"); 1584 return -EOPNOTSUPP; 1585 } 1586 1587 request = kzalloc(sizeof(*request), GFP_KERNEL); 1588 if (!request) 1589 return -ENOMEM; 1590 1591 request->wpan_dev = wpan_dev; 1592 request->wpan_phy = wpan_phy; 1593 1594 /* Use maximum duration order by default */ 1595 if (info->attrs[NL802154_ATTR_BEACON_INTERVAL]) 1596 request->interval = nla_get_u8(info->attrs[NL802154_ATTR_BEACON_INTERVAL]); 1597 else 1598 request->interval = IEEE802154_MAX_SCAN_DURATION; 1599 1600 err = rdev_send_beacons(rdev, request); 1601 if (err) { 1602 pr_err("Failure starting sending beacons (%d)\n", err); 1603 goto free_request; 1604 } 1605 1606 return 0; 1607 1608 free_request: 1609 kfree(request); 1610 1611 return err; 1612 } 1613 1614 void nl802154_beaconing_done(struct wpan_dev *wpan_dev) 1615 { 1616 /* NOP */ 1617 } 1618 EXPORT_SYMBOL_GPL(nl802154_beaconing_done); 1619 1620 static int 1621 nl802154_stop_beacons(struct sk_buff *skb, struct genl_info *info) 1622 { 1623 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1624 struct net_device *dev = info->user_ptr[1]; 1625 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1626 1627 /* Resources are released in the notification helper above */ 1628 return rdev_stop_beacons(rdev, wpan_dev); 1629 } 1630 1631 static int nl802154_associate(struct sk_buff *skb, struct genl_info *info) 1632 { 1633 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1634 struct net_device *dev = info->user_ptr[1]; 1635 struct wpan_dev *wpan_dev; 1636 struct wpan_phy *wpan_phy; 1637 struct ieee802154_addr coord; 1638 int err; 1639 1640 wpan_dev = dev->ieee802154_ptr; 1641 wpan_phy = &rdev->wpan_phy; 1642 1643 if (wpan_phy->flags & WPAN_PHY_FLAG_DATAGRAMS_ONLY) { 1644 NL_SET_ERR_MSG(info->extack, "PHY only supports datagrams"); 1645 return -EOPNOTSUPP; 1646 } 1647 1648 if (!info->attrs[NL802154_ATTR_PAN_ID] || 1649 !info->attrs[NL802154_ATTR_EXTENDED_ADDR]) 1650 return -EINVAL; 1651 1652 coord.pan_id = nla_get_le16(info->attrs[NL802154_ATTR_PAN_ID]); 1653 coord.mode = IEEE802154_ADDR_LONG; 1654 coord.extended_addr = nla_get_le64(info->attrs[NL802154_ATTR_EXTENDED_ADDR]); 1655 1656 mutex_lock(&wpan_dev->association_lock); 1657 err = rdev_associate(rdev, wpan_dev, &coord); 1658 mutex_unlock(&wpan_dev->association_lock); 1659 if (err) 1660 pr_err("Association with PAN ID 0x%x failed (%d)\n", 1661 le16_to_cpu(coord.pan_id), err); 1662 1663 return err; 1664 } 1665 1666 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL 1667 static const struct nla_policy nl802154_dev_addr_policy[NL802154_DEV_ADDR_ATTR_MAX + 1] = { 1668 [NL802154_DEV_ADDR_ATTR_PAN_ID] = { .type = NLA_U16 }, 1669 [NL802154_DEV_ADDR_ATTR_MODE] = { .type = NLA_U32 }, 1670 [NL802154_DEV_ADDR_ATTR_SHORT] = { .type = NLA_U16 }, 1671 [NL802154_DEV_ADDR_ATTR_EXTENDED] = { .type = NLA_U64 }, 1672 }; 1673 1674 static int 1675 ieee802154_llsec_parse_dev_addr(struct nlattr *nla, 1676 struct ieee802154_addr *addr) 1677 { 1678 struct nlattr *attrs[NL802154_DEV_ADDR_ATTR_MAX + 1]; 1679 1680 if (!nla || nla_parse_nested_deprecated(attrs, NL802154_DEV_ADDR_ATTR_MAX, nla, nl802154_dev_addr_policy, NULL)) 1681 return -EINVAL; 1682 1683 if (!attrs[NL802154_DEV_ADDR_ATTR_PAN_ID] || !attrs[NL802154_DEV_ADDR_ATTR_MODE]) 1684 return -EINVAL; 1685 1686 addr->pan_id = nla_get_le16(attrs[NL802154_DEV_ADDR_ATTR_PAN_ID]); 1687 addr->mode = nla_get_u32(attrs[NL802154_DEV_ADDR_ATTR_MODE]); 1688 switch (addr->mode) { 1689 case NL802154_DEV_ADDR_SHORT: 1690 if (!attrs[NL802154_DEV_ADDR_ATTR_SHORT]) 1691 return -EINVAL; 1692 addr->short_addr = nla_get_le16(attrs[NL802154_DEV_ADDR_ATTR_SHORT]); 1693 break; 1694 case NL802154_DEV_ADDR_EXTENDED: 1695 if (!attrs[NL802154_DEV_ADDR_ATTR_EXTENDED]) 1696 return -EINVAL; 1697 addr->extended_addr = nla_get_le64(attrs[NL802154_DEV_ADDR_ATTR_EXTENDED]); 1698 break; 1699 default: 1700 return -EINVAL; 1701 } 1702 1703 return 0; 1704 } 1705 1706 static const struct nla_policy nl802154_key_id_policy[NL802154_KEY_ID_ATTR_MAX + 1] = { 1707 [NL802154_KEY_ID_ATTR_MODE] = { .type = NLA_U32 }, 1708 [NL802154_KEY_ID_ATTR_INDEX] = { .type = NLA_U8 }, 1709 [NL802154_KEY_ID_ATTR_IMPLICIT] = { .type = NLA_NESTED }, 1710 [NL802154_KEY_ID_ATTR_SOURCE_SHORT] = { .type = NLA_U32 }, 1711 [NL802154_KEY_ID_ATTR_SOURCE_EXTENDED] = { .type = NLA_U64 }, 1712 }; 1713 1714 static int 1715 ieee802154_llsec_parse_key_id(struct nlattr *nla, 1716 struct ieee802154_llsec_key_id *desc) 1717 { 1718 struct nlattr *attrs[NL802154_KEY_ID_ATTR_MAX + 1]; 1719 1720 if (!nla || nla_parse_nested_deprecated(attrs, NL802154_KEY_ID_ATTR_MAX, nla, nl802154_key_id_policy, NULL)) 1721 return -EINVAL; 1722 1723 if (!attrs[NL802154_KEY_ID_ATTR_MODE]) 1724 return -EINVAL; 1725 1726 desc->mode = nla_get_u32(attrs[NL802154_KEY_ID_ATTR_MODE]); 1727 switch (desc->mode) { 1728 case NL802154_KEY_ID_MODE_IMPLICIT: 1729 if (!attrs[NL802154_KEY_ID_ATTR_IMPLICIT]) 1730 return -EINVAL; 1731 1732 if (ieee802154_llsec_parse_dev_addr(attrs[NL802154_KEY_ID_ATTR_IMPLICIT], 1733 &desc->device_addr) < 0) 1734 return -EINVAL; 1735 break; 1736 case NL802154_KEY_ID_MODE_INDEX: 1737 break; 1738 case NL802154_KEY_ID_MODE_INDEX_SHORT: 1739 if (!attrs[NL802154_KEY_ID_ATTR_SOURCE_SHORT]) 1740 return -EINVAL; 1741 1742 desc->short_source = nla_get_le32(attrs[NL802154_KEY_ID_ATTR_SOURCE_SHORT]); 1743 break; 1744 case NL802154_KEY_ID_MODE_INDEX_EXTENDED: 1745 if (!attrs[NL802154_KEY_ID_ATTR_SOURCE_EXTENDED]) 1746 return -EINVAL; 1747 1748 desc->extended_source = nla_get_le64(attrs[NL802154_KEY_ID_ATTR_SOURCE_EXTENDED]); 1749 break; 1750 default: 1751 return -EINVAL; 1752 } 1753 1754 if (desc->mode != NL802154_KEY_ID_MODE_IMPLICIT) { 1755 if (!attrs[NL802154_KEY_ID_ATTR_INDEX]) 1756 return -EINVAL; 1757 1758 /* TODO change id to idx */ 1759 desc->id = nla_get_u8(attrs[NL802154_KEY_ID_ATTR_INDEX]); 1760 } 1761 1762 return 0; 1763 } 1764 1765 static int nl802154_set_llsec_params(struct sk_buff *skb, 1766 struct genl_info *info) 1767 { 1768 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1769 struct net_device *dev = info->user_ptr[1]; 1770 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1771 struct ieee802154_llsec_params params; 1772 u32 changed = 0; 1773 int ret; 1774 1775 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) 1776 return -EOPNOTSUPP; 1777 1778 if (info->attrs[NL802154_ATTR_SEC_ENABLED]) { 1779 u8 enabled; 1780 1781 enabled = nla_get_u8(info->attrs[NL802154_ATTR_SEC_ENABLED]); 1782 if (enabled != 0 && enabled != 1) 1783 return -EINVAL; 1784 1785 params.enabled = nla_get_u8(info->attrs[NL802154_ATTR_SEC_ENABLED]); 1786 changed |= IEEE802154_LLSEC_PARAM_ENABLED; 1787 } 1788 1789 if (info->attrs[NL802154_ATTR_SEC_OUT_KEY_ID]) { 1790 ret = ieee802154_llsec_parse_key_id(info->attrs[NL802154_ATTR_SEC_OUT_KEY_ID], 1791 ¶ms.out_key); 1792 if (ret < 0) 1793 return ret; 1794 1795 changed |= IEEE802154_LLSEC_PARAM_OUT_KEY; 1796 } 1797 1798 if (info->attrs[NL802154_ATTR_SEC_OUT_LEVEL]) { 1799 params.out_level = nla_get_u32(info->attrs[NL802154_ATTR_SEC_OUT_LEVEL]); 1800 if (params.out_level > NL802154_SECLEVEL_MAX) 1801 return -EINVAL; 1802 1803 changed |= IEEE802154_LLSEC_PARAM_OUT_LEVEL; 1804 } 1805 1806 if (info->attrs[NL802154_ATTR_SEC_FRAME_COUNTER]) { 1807 params.frame_counter = nla_get_be32(info->attrs[NL802154_ATTR_SEC_FRAME_COUNTER]); 1808 changed |= IEEE802154_LLSEC_PARAM_FRAME_COUNTER; 1809 } 1810 1811 return rdev_set_llsec_params(rdev, wpan_dev, ¶ms, changed); 1812 } 1813 1814 static int nl802154_send_key(struct sk_buff *msg, u32 cmd, u32 portid, 1815 u32 seq, int flags, 1816 struct cfg802154_registered_device *rdev, 1817 struct net_device *dev, 1818 const struct ieee802154_llsec_key_entry *key) 1819 { 1820 void *hdr; 1821 u32 commands[NL802154_CMD_FRAME_NR_IDS / 32]; 1822 struct nlattr *nl_key, *nl_key_id; 1823 1824 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd); 1825 if (!hdr) 1826 return -ENOBUFS; 1827 1828 if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex)) 1829 goto nla_put_failure; 1830 1831 nl_key = nla_nest_start_noflag(msg, NL802154_ATTR_SEC_KEY); 1832 if (!nl_key) 1833 goto nla_put_failure; 1834 1835 nl_key_id = nla_nest_start_noflag(msg, NL802154_KEY_ATTR_ID); 1836 if (!nl_key_id) 1837 goto nla_put_failure; 1838 1839 if (ieee802154_llsec_send_key_id(msg, &key->id) < 0) 1840 goto nla_put_failure; 1841 1842 nla_nest_end(msg, nl_key_id); 1843 1844 if (nla_put_u8(msg, NL802154_KEY_ATTR_USAGE_FRAMES, 1845 key->key->frame_types)) 1846 goto nla_put_failure; 1847 1848 if (key->key->frame_types & BIT(NL802154_FRAME_CMD)) { 1849 /* TODO for each nested */ 1850 memset(commands, 0, sizeof(commands)); 1851 commands[7] = key->key->cmd_frame_ids; 1852 if (nla_put(msg, NL802154_KEY_ATTR_USAGE_CMDS, 1853 sizeof(commands), commands)) 1854 goto nla_put_failure; 1855 } 1856 1857 if (nla_put(msg, NL802154_KEY_ATTR_BYTES, NL802154_KEY_SIZE, 1858 key->key->key)) 1859 goto nla_put_failure; 1860 1861 nla_nest_end(msg, nl_key); 1862 genlmsg_end(msg, hdr); 1863 1864 return 0; 1865 1866 nla_put_failure: 1867 genlmsg_cancel(msg, hdr); 1868 return -EMSGSIZE; 1869 } 1870 1871 static int 1872 nl802154_dump_llsec_key(struct sk_buff *skb, struct netlink_callback *cb) 1873 { 1874 struct cfg802154_registered_device *rdev = NULL; 1875 struct ieee802154_llsec_key_entry *key; 1876 struct ieee802154_llsec_table *table; 1877 struct wpan_dev *wpan_dev; 1878 int err; 1879 1880 err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev); 1881 if (err) 1882 return err; 1883 1884 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) { 1885 err = skb->len; 1886 goto out_err; 1887 } 1888 1889 if (!wpan_dev->netdev) { 1890 err = -EINVAL; 1891 goto out_err; 1892 } 1893 1894 rdev_lock_llsec_table(rdev, wpan_dev); 1895 rdev_get_llsec_table(rdev, wpan_dev, &table); 1896 1897 /* TODO make it like station dump */ 1898 if (cb->args[2]) 1899 goto out; 1900 1901 list_for_each_entry(key, &table->keys, list) { 1902 if (nl802154_send_key(skb, NL802154_CMD_NEW_SEC_KEY, 1903 NETLINK_CB(cb->skb).portid, 1904 cb->nlh->nlmsg_seq, NLM_F_MULTI, 1905 rdev, wpan_dev->netdev, key) < 0) { 1906 /* TODO */ 1907 err = -EIO; 1908 rdev_unlock_llsec_table(rdev, wpan_dev); 1909 goto out_err; 1910 } 1911 } 1912 1913 cb->args[2] = 1; 1914 1915 out: 1916 rdev_unlock_llsec_table(rdev, wpan_dev); 1917 err = skb->len; 1918 out_err: 1919 nl802154_finish_wpan_dev_dump(rdev); 1920 1921 return err; 1922 } 1923 1924 static const struct nla_policy nl802154_key_policy[NL802154_KEY_ATTR_MAX + 1] = { 1925 [NL802154_KEY_ATTR_ID] = { NLA_NESTED }, 1926 /* TODO handle it as for_each_nested and NLA_FLAG? */ 1927 [NL802154_KEY_ATTR_USAGE_FRAMES] = { NLA_U8 }, 1928 /* TODO handle it as for_each_nested, not static array? */ 1929 [NL802154_KEY_ATTR_USAGE_CMDS] = { .len = NL802154_CMD_FRAME_NR_IDS / 8 }, 1930 [NL802154_KEY_ATTR_BYTES] = { .len = NL802154_KEY_SIZE }, 1931 }; 1932 1933 static int nl802154_add_llsec_key(struct sk_buff *skb, struct genl_info *info) 1934 { 1935 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1936 struct net_device *dev = info->user_ptr[1]; 1937 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1938 struct nlattr *attrs[NL802154_KEY_ATTR_MAX + 1]; 1939 struct ieee802154_llsec_key key = { }; 1940 struct ieee802154_llsec_key_id id = { }; 1941 u32 commands[NL802154_CMD_FRAME_NR_IDS / 32] = { }; 1942 1943 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) 1944 return -EOPNOTSUPP; 1945 1946 if (!info->attrs[NL802154_ATTR_SEC_KEY] || 1947 nla_parse_nested_deprecated(attrs, NL802154_KEY_ATTR_MAX, info->attrs[NL802154_ATTR_SEC_KEY], nl802154_key_policy, info->extack)) 1948 return -EINVAL; 1949 1950 if (!attrs[NL802154_KEY_ATTR_USAGE_FRAMES] || 1951 !attrs[NL802154_KEY_ATTR_BYTES]) 1952 return -EINVAL; 1953 1954 if (ieee802154_llsec_parse_key_id(attrs[NL802154_KEY_ATTR_ID], &id) < 0) 1955 return -ENOBUFS; 1956 1957 key.frame_types = nla_get_u8(attrs[NL802154_KEY_ATTR_USAGE_FRAMES]); 1958 if (key.frame_types > BIT(NL802154_FRAME_MAX) || 1959 ((key.frame_types & BIT(NL802154_FRAME_CMD)) && 1960 !attrs[NL802154_KEY_ATTR_USAGE_CMDS])) 1961 return -EINVAL; 1962 1963 if (attrs[NL802154_KEY_ATTR_USAGE_CMDS]) { 1964 /* TODO for each nested */ 1965 nla_memcpy(commands, attrs[NL802154_KEY_ATTR_USAGE_CMDS], 1966 NL802154_CMD_FRAME_NR_IDS / 8); 1967 1968 /* TODO understand the -EINVAL logic here? last condition */ 1969 if (commands[0] || commands[1] || commands[2] || commands[3] || 1970 commands[4] || commands[5] || commands[6] || 1971 commands[7] > BIT(NL802154_CMD_FRAME_MAX)) 1972 return -EINVAL; 1973 1974 key.cmd_frame_ids = commands[7]; 1975 } else { 1976 key.cmd_frame_ids = 0; 1977 } 1978 1979 nla_memcpy(key.key, attrs[NL802154_KEY_ATTR_BYTES], NL802154_KEY_SIZE); 1980 1981 if (ieee802154_llsec_parse_key_id(attrs[NL802154_KEY_ATTR_ID], &id) < 0) 1982 return -ENOBUFS; 1983 1984 return rdev_add_llsec_key(rdev, wpan_dev, &id, &key); 1985 } 1986 1987 static int nl802154_del_llsec_key(struct sk_buff *skb, struct genl_info *info) 1988 { 1989 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1990 struct net_device *dev = info->user_ptr[1]; 1991 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1992 struct nlattr *attrs[NL802154_KEY_ATTR_MAX + 1]; 1993 struct ieee802154_llsec_key_id id; 1994 1995 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) 1996 return -EOPNOTSUPP; 1997 1998 if (!info->attrs[NL802154_ATTR_SEC_KEY] || 1999 nla_parse_nested_deprecated(attrs, NL802154_KEY_ATTR_MAX, info->attrs[NL802154_ATTR_SEC_KEY], nl802154_key_policy, info->extack)) 2000 return -EINVAL; 2001 2002 if (ieee802154_llsec_parse_key_id(attrs[NL802154_KEY_ATTR_ID], &id) < 0) 2003 return -ENOBUFS; 2004 2005 return rdev_del_llsec_key(rdev, wpan_dev, &id); 2006 } 2007 2008 static int nl802154_send_device(struct sk_buff *msg, u32 cmd, u32 portid, 2009 u32 seq, int flags, 2010 struct cfg802154_registered_device *rdev, 2011 struct net_device *dev, 2012 const struct ieee802154_llsec_device *dev_desc) 2013 { 2014 void *hdr; 2015 struct nlattr *nl_device; 2016 2017 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd); 2018 if (!hdr) 2019 return -ENOBUFS; 2020 2021 if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex)) 2022 goto nla_put_failure; 2023 2024 nl_device = nla_nest_start_noflag(msg, NL802154_ATTR_SEC_DEVICE); 2025 if (!nl_device) 2026 goto nla_put_failure; 2027 2028 if (nla_put_u32(msg, NL802154_DEV_ATTR_FRAME_COUNTER, 2029 dev_desc->frame_counter) || 2030 nla_put_le16(msg, NL802154_DEV_ATTR_PAN_ID, dev_desc->pan_id) || 2031 nla_put_le16(msg, NL802154_DEV_ATTR_SHORT_ADDR, 2032 dev_desc->short_addr) || 2033 nla_put_le64(msg, NL802154_DEV_ATTR_EXTENDED_ADDR, 2034 dev_desc->hwaddr, NL802154_DEV_ATTR_PAD) || 2035 nla_put_u8(msg, NL802154_DEV_ATTR_SECLEVEL_EXEMPT, 2036 dev_desc->seclevel_exempt) || 2037 nla_put_u32(msg, NL802154_DEV_ATTR_KEY_MODE, dev_desc->key_mode)) 2038 goto nla_put_failure; 2039 2040 nla_nest_end(msg, nl_device); 2041 genlmsg_end(msg, hdr); 2042 2043 return 0; 2044 2045 nla_put_failure: 2046 genlmsg_cancel(msg, hdr); 2047 return -EMSGSIZE; 2048 } 2049 2050 static int 2051 nl802154_dump_llsec_dev(struct sk_buff *skb, struct netlink_callback *cb) 2052 { 2053 struct cfg802154_registered_device *rdev = NULL; 2054 struct ieee802154_llsec_device *dev; 2055 struct ieee802154_llsec_table *table; 2056 struct wpan_dev *wpan_dev; 2057 int err; 2058 2059 err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev); 2060 if (err) 2061 return err; 2062 2063 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) { 2064 err = skb->len; 2065 goto out_err; 2066 } 2067 2068 if (!wpan_dev->netdev) { 2069 err = -EINVAL; 2070 goto out_err; 2071 } 2072 2073 rdev_lock_llsec_table(rdev, wpan_dev); 2074 rdev_get_llsec_table(rdev, wpan_dev, &table); 2075 2076 /* TODO make it like station dump */ 2077 if (cb->args[2]) 2078 goto out; 2079 2080 list_for_each_entry(dev, &table->devices, list) { 2081 if (nl802154_send_device(skb, NL802154_CMD_NEW_SEC_LEVEL, 2082 NETLINK_CB(cb->skb).portid, 2083 cb->nlh->nlmsg_seq, NLM_F_MULTI, 2084 rdev, wpan_dev->netdev, dev) < 0) { 2085 /* TODO */ 2086 err = -EIO; 2087 rdev_unlock_llsec_table(rdev, wpan_dev); 2088 goto out_err; 2089 } 2090 } 2091 2092 cb->args[2] = 1; 2093 2094 out: 2095 rdev_unlock_llsec_table(rdev, wpan_dev); 2096 err = skb->len; 2097 out_err: 2098 nl802154_finish_wpan_dev_dump(rdev); 2099 2100 return err; 2101 } 2102 2103 static const struct nla_policy nl802154_dev_policy[NL802154_DEV_ATTR_MAX + 1] = { 2104 [NL802154_DEV_ATTR_FRAME_COUNTER] = { NLA_U32 }, 2105 [NL802154_DEV_ATTR_PAN_ID] = { .type = NLA_U16 }, 2106 [NL802154_DEV_ATTR_SHORT_ADDR] = { .type = NLA_U16 }, 2107 [NL802154_DEV_ATTR_EXTENDED_ADDR] = { .type = NLA_U64 }, 2108 [NL802154_DEV_ATTR_SECLEVEL_EXEMPT] = { NLA_U8 }, 2109 [NL802154_DEV_ATTR_KEY_MODE] = { NLA_U32 }, 2110 }; 2111 2112 static int 2113 ieee802154_llsec_parse_device(struct nlattr *nla, 2114 struct ieee802154_llsec_device *dev) 2115 { 2116 struct nlattr *attrs[NL802154_DEV_ATTR_MAX + 1]; 2117 2118 if (!nla || nla_parse_nested_deprecated(attrs, NL802154_DEV_ATTR_MAX, nla, nl802154_dev_policy, NULL)) 2119 return -EINVAL; 2120 2121 memset(dev, 0, sizeof(*dev)); 2122 2123 if (!attrs[NL802154_DEV_ATTR_FRAME_COUNTER] || 2124 !attrs[NL802154_DEV_ATTR_PAN_ID] || 2125 !attrs[NL802154_DEV_ATTR_SHORT_ADDR] || 2126 !attrs[NL802154_DEV_ATTR_EXTENDED_ADDR] || 2127 !attrs[NL802154_DEV_ATTR_SECLEVEL_EXEMPT] || 2128 !attrs[NL802154_DEV_ATTR_KEY_MODE]) 2129 return -EINVAL; 2130 2131 /* TODO be32 */ 2132 dev->frame_counter = nla_get_u32(attrs[NL802154_DEV_ATTR_FRAME_COUNTER]); 2133 dev->pan_id = nla_get_le16(attrs[NL802154_DEV_ATTR_PAN_ID]); 2134 dev->short_addr = nla_get_le16(attrs[NL802154_DEV_ATTR_SHORT_ADDR]); 2135 /* TODO rename hwaddr to extended_addr */ 2136 dev->hwaddr = nla_get_le64(attrs[NL802154_DEV_ATTR_EXTENDED_ADDR]); 2137 dev->seclevel_exempt = nla_get_u8(attrs[NL802154_DEV_ATTR_SECLEVEL_EXEMPT]); 2138 dev->key_mode = nla_get_u32(attrs[NL802154_DEV_ATTR_KEY_MODE]); 2139 2140 if (dev->key_mode > NL802154_DEVKEY_MAX || 2141 (dev->seclevel_exempt != 0 && dev->seclevel_exempt != 1)) 2142 return -EINVAL; 2143 2144 return 0; 2145 } 2146 2147 static int nl802154_add_llsec_dev(struct sk_buff *skb, struct genl_info *info) 2148 { 2149 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 2150 struct net_device *dev = info->user_ptr[1]; 2151 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 2152 struct ieee802154_llsec_device dev_desc; 2153 2154 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) 2155 return -EOPNOTSUPP; 2156 2157 if (ieee802154_llsec_parse_device(info->attrs[NL802154_ATTR_SEC_DEVICE], 2158 &dev_desc) < 0) 2159 return -EINVAL; 2160 2161 return rdev_add_device(rdev, wpan_dev, &dev_desc); 2162 } 2163 2164 static int nl802154_del_llsec_dev(struct sk_buff *skb, struct genl_info *info) 2165 { 2166 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 2167 struct net_device *dev = info->user_ptr[1]; 2168 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 2169 struct nlattr *attrs[NL802154_DEV_ATTR_MAX + 1]; 2170 __le64 extended_addr; 2171 2172 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) 2173 return -EOPNOTSUPP; 2174 2175 if (!info->attrs[NL802154_ATTR_SEC_DEVICE] || 2176 nla_parse_nested_deprecated(attrs, NL802154_DEV_ATTR_MAX, info->attrs[NL802154_ATTR_SEC_DEVICE], nl802154_dev_policy, info->extack)) 2177 return -EINVAL; 2178 2179 if (!attrs[NL802154_DEV_ATTR_EXTENDED_ADDR]) 2180 return -EINVAL; 2181 2182 extended_addr = nla_get_le64(attrs[NL802154_DEV_ATTR_EXTENDED_ADDR]); 2183 return rdev_del_device(rdev, wpan_dev, extended_addr); 2184 } 2185 2186 static int nl802154_send_devkey(struct sk_buff *msg, u32 cmd, u32 portid, 2187 u32 seq, int flags, 2188 struct cfg802154_registered_device *rdev, 2189 struct net_device *dev, __le64 extended_addr, 2190 const struct ieee802154_llsec_device_key *devkey) 2191 { 2192 void *hdr; 2193 struct nlattr *nl_devkey, *nl_key_id; 2194 2195 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd); 2196 if (!hdr) 2197 return -ENOBUFS; 2198 2199 if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex)) 2200 goto nla_put_failure; 2201 2202 nl_devkey = nla_nest_start_noflag(msg, NL802154_ATTR_SEC_DEVKEY); 2203 if (!nl_devkey) 2204 goto nla_put_failure; 2205 2206 if (nla_put_le64(msg, NL802154_DEVKEY_ATTR_EXTENDED_ADDR, 2207 extended_addr, NL802154_DEVKEY_ATTR_PAD) || 2208 nla_put_u32(msg, NL802154_DEVKEY_ATTR_FRAME_COUNTER, 2209 devkey->frame_counter)) 2210 goto nla_put_failure; 2211 2212 nl_key_id = nla_nest_start_noflag(msg, NL802154_DEVKEY_ATTR_ID); 2213 if (!nl_key_id) 2214 goto nla_put_failure; 2215 2216 if (ieee802154_llsec_send_key_id(msg, &devkey->key_id) < 0) 2217 goto nla_put_failure; 2218 2219 nla_nest_end(msg, nl_key_id); 2220 nla_nest_end(msg, nl_devkey); 2221 genlmsg_end(msg, hdr); 2222 2223 return 0; 2224 2225 nla_put_failure: 2226 genlmsg_cancel(msg, hdr); 2227 return -EMSGSIZE; 2228 } 2229 2230 static int 2231 nl802154_dump_llsec_devkey(struct sk_buff *skb, struct netlink_callback *cb) 2232 { 2233 struct cfg802154_registered_device *rdev = NULL; 2234 struct ieee802154_llsec_device_key *kpos; 2235 struct ieee802154_llsec_device *dpos; 2236 struct ieee802154_llsec_table *table; 2237 struct wpan_dev *wpan_dev; 2238 int err; 2239 2240 err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev); 2241 if (err) 2242 return err; 2243 2244 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) { 2245 err = skb->len; 2246 goto out_err; 2247 } 2248 2249 if (!wpan_dev->netdev) { 2250 err = -EINVAL; 2251 goto out_err; 2252 } 2253 2254 rdev_lock_llsec_table(rdev, wpan_dev); 2255 rdev_get_llsec_table(rdev, wpan_dev, &table); 2256 2257 /* TODO make it like station dump */ 2258 if (cb->args[2]) 2259 goto out; 2260 2261 /* TODO look if remove devkey and do some nested attribute */ 2262 list_for_each_entry(dpos, &table->devices, list) { 2263 list_for_each_entry(kpos, &dpos->keys, list) { 2264 if (nl802154_send_devkey(skb, 2265 NL802154_CMD_NEW_SEC_LEVEL, 2266 NETLINK_CB(cb->skb).portid, 2267 cb->nlh->nlmsg_seq, 2268 NLM_F_MULTI, rdev, 2269 wpan_dev->netdev, 2270 dpos->hwaddr, 2271 kpos) < 0) { 2272 /* TODO */ 2273 err = -EIO; 2274 rdev_unlock_llsec_table(rdev, wpan_dev); 2275 goto out_err; 2276 } 2277 } 2278 } 2279 2280 cb->args[2] = 1; 2281 2282 out: 2283 rdev_unlock_llsec_table(rdev, wpan_dev); 2284 err = skb->len; 2285 out_err: 2286 nl802154_finish_wpan_dev_dump(rdev); 2287 2288 return err; 2289 } 2290 2291 static const struct nla_policy nl802154_devkey_policy[NL802154_DEVKEY_ATTR_MAX + 1] = { 2292 [NL802154_DEVKEY_ATTR_FRAME_COUNTER] = { NLA_U32 }, 2293 [NL802154_DEVKEY_ATTR_EXTENDED_ADDR] = { NLA_U64 }, 2294 [NL802154_DEVKEY_ATTR_ID] = { NLA_NESTED }, 2295 }; 2296 2297 static int nl802154_add_llsec_devkey(struct sk_buff *skb, struct genl_info *info) 2298 { 2299 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 2300 struct net_device *dev = info->user_ptr[1]; 2301 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 2302 struct nlattr *attrs[NL802154_DEVKEY_ATTR_MAX + 1]; 2303 struct ieee802154_llsec_device_key key; 2304 __le64 extended_addr; 2305 2306 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) 2307 return -EOPNOTSUPP; 2308 2309 if (!info->attrs[NL802154_ATTR_SEC_DEVKEY] || 2310 nla_parse_nested_deprecated(attrs, NL802154_DEVKEY_ATTR_MAX, info->attrs[NL802154_ATTR_SEC_DEVKEY], nl802154_devkey_policy, info->extack) < 0) 2311 return -EINVAL; 2312 2313 if (!attrs[NL802154_DEVKEY_ATTR_FRAME_COUNTER] || 2314 !attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR]) 2315 return -EINVAL; 2316 2317 /* TODO change key.id ? */ 2318 if (ieee802154_llsec_parse_key_id(attrs[NL802154_DEVKEY_ATTR_ID], 2319 &key.key_id) < 0) 2320 return -ENOBUFS; 2321 2322 /* TODO be32 */ 2323 key.frame_counter = nla_get_u32(attrs[NL802154_DEVKEY_ATTR_FRAME_COUNTER]); 2324 /* TODO change naming hwaddr -> extended_addr 2325 * check unique identifier short+pan OR extended_addr 2326 */ 2327 extended_addr = nla_get_le64(attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR]); 2328 return rdev_add_devkey(rdev, wpan_dev, extended_addr, &key); 2329 } 2330 2331 static int nl802154_del_llsec_devkey(struct sk_buff *skb, struct genl_info *info) 2332 { 2333 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 2334 struct net_device *dev = info->user_ptr[1]; 2335 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 2336 struct nlattr *attrs[NL802154_DEVKEY_ATTR_MAX + 1]; 2337 struct ieee802154_llsec_device_key key; 2338 __le64 extended_addr; 2339 2340 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) 2341 return -EOPNOTSUPP; 2342 2343 if (!info->attrs[NL802154_ATTR_SEC_DEVKEY] || 2344 nla_parse_nested_deprecated(attrs, NL802154_DEVKEY_ATTR_MAX, info->attrs[NL802154_ATTR_SEC_DEVKEY], nl802154_devkey_policy, info->extack)) 2345 return -EINVAL; 2346 2347 if (!attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR]) 2348 return -EINVAL; 2349 2350 /* TODO change key.id ? */ 2351 if (ieee802154_llsec_parse_key_id(attrs[NL802154_DEVKEY_ATTR_ID], 2352 &key.key_id) < 0) 2353 return -ENOBUFS; 2354 2355 /* TODO change naming hwaddr -> extended_addr 2356 * check unique identifier short+pan OR extended_addr 2357 */ 2358 extended_addr = nla_get_le64(attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR]); 2359 return rdev_del_devkey(rdev, wpan_dev, extended_addr, &key); 2360 } 2361 2362 static int nl802154_send_seclevel(struct sk_buff *msg, u32 cmd, u32 portid, 2363 u32 seq, int flags, 2364 struct cfg802154_registered_device *rdev, 2365 struct net_device *dev, 2366 const struct ieee802154_llsec_seclevel *sl) 2367 { 2368 void *hdr; 2369 struct nlattr *nl_seclevel; 2370 2371 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd); 2372 if (!hdr) 2373 return -ENOBUFS; 2374 2375 if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex)) 2376 goto nla_put_failure; 2377 2378 nl_seclevel = nla_nest_start_noflag(msg, NL802154_ATTR_SEC_LEVEL); 2379 if (!nl_seclevel) 2380 goto nla_put_failure; 2381 2382 if (nla_put_u32(msg, NL802154_SECLEVEL_ATTR_FRAME, sl->frame_type) || 2383 nla_put_u32(msg, NL802154_SECLEVEL_ATTR_LEVELS, sl->sec_levels) || 2384 nla_put_u8(msg, NL802154_SECLEVEL_ATTR_DEV_OVERRIDE, 2385 sl->device_override)) 2386 goto nla_put_failure; 2387 2388 if (sl->frame_type == NL802154_FRAME_CMD) { 2389 if (nla_put_u32(msg, NL802154_SECLEVEL_ATTR_CMD_FRAME, 2390 sl->cmd_frame_id)) 2391 goto nla_put_failure; 2392 } 2393 2394 nla_nest_end(msg, nl_seclevel); 2395 genlmsg_end(msg, hdr); 2396 2397 return 0; 2398 2399 nla_put_failure: 2400 genlmsg_cancel(msg, hdr); 2401 return -EMSGSIZE; 2402 } 2403 2404 static int 2405 nl802154_dump_llsec_seclevel(struct sk_buff *skb, struct netlink_callback *cb) 2406 { 2407 struct cfg802154_registered_device *rdev = NULL; 2408 struct ieee802154_llsec_seclevel *sl; 2409 struct ieee802154_llsec_table *table; 2410 struct wpan_dev *wpan_dev; 2411 int err; 2412 2413 err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev); 2414 if (err) 2415 return err; 2416 2417 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) { 2418 err = skb->len; 2419 goto out_err; 2420 } 2421 2422 if (!wpan_dev->netdev) { 2423 err = -EINVAL; 2424 goto out_err; 2425 } 2426 2427 rdev_lock_llsec_table(rdev, wpan_dev); 2428 rdev_get_llsec_table(rdev, wpan_dev, &table); 2429 2430 /* TODO make it like station dump */ 2431 if (cb->args[2]) 2432 goto out; 2433 2434 list_for_each_entry(sl, &table->security_levels, list) { 2435 if (nl802154_send_seclevel(skb, NL802154_CMD_NEW_SEC_LEVEL, 2436 NETLINK_CB(cb->skb).portid, 2437 cb->nlh->nlmsg_seq, NLM_F_MULTI, 2438 rdev, wpan_dev->netdev, sl) < 0) { 2439 /* TODO */ 2440 err = -EIO; 2441 rdev_unlock_llsec_table(rdev, wpan_dev); 2442 goto out_err; 2443 } 2444 } 2445 2446 cb->args[2] = 1; 2447 2448 out: 2449 rdev_unlock_llsec_table(rdev, wpan_dev); 2450 err = skb->len; 2451 out_err: 2452 nl802154_finish_wpan_dev_dump(rdev); 2453 2454 return err; 2455 } 2456 2457 static const struct nla_policy nl802154_seclevel_policy[NL802154_SECLEVEL_ATTR_MAX + 1] = { 2458 [NL802154_SECLEVEL_ATTR_LEVELS] = { .type = NLA_U8 }, 2459 [NL802154_SECLEVEL_ATTR_FRAME] = { .type = NLA_U32 }, 2460 [NL802154_SECLEVEL_ATTR_CMD_FRAME] = { .type = NLA_U32 }, 2461 [NL802154_SECLEVEL_ATTR_DEV_OVERRIDE] = { .type = NLA_U8 }, 2462 }; 2463 2464 static int 2465 llsec_parse_seclevel(struct nlattr *nla, struct ieee802154_llsec_seclevel *sl) 2466 { 2467 struct nlattr *attrs[NL802154_SECLEVEL_ATTR_MAX + 1]; 2468 2469 if (!nla || nla_parse_nested_deprecated(attrs, NL802154_SECLEVEL_ATTR_MAX, nla, nl802154_seclevel_policy, NULL)) 2470 return -EINVAL; 2471 2472 memset(sl, 0, sizeof(*sl)); 2473 2474 if (!attrs[NL802154_SECLEVEL_ATTR_LEVELS] || 2475 !attrs[NL802154_SECLEVEL_ATTR_FRAME] || 2476 !attrs[NL802154_SECLEVEL_ATTR_DEV_OVERRIDE]) 2477 return -EINVAL; 2478 2479 sl->sec_levels = nla_get_u8(attrs[NL802154_SECLEVEL_ATTR_LEVELS]); 2480 sl->frame_type = nla_get_u32(attrs[NL802154_SECLEVEL_ATTR_FRAME]); 2481 sl->device_override = nla_get_u8(attrs[NL802154_SECLEVEL_ATTR_DEV_OVERRIDE]); 2482 if (sl->frame_type > NL802154_FRAME_MAX || 2483 (sl->device_override != 0 && sl->device_override != 1)) 2484 return -EINVAL; 2485 2486 if (sl->frame_type == NL802154_FRAME_CMD) { 2487 if (!attrs[NL802154_SECLEVEL_ATTR_CMD_FRAME]) 2488 return -EINVAL; 2489 2490 sl->cmd_frame_id = nla_get_u32(attrs[NL802154_SECLEVEL_ATTR_CMD_FRAME]); 2491 if (sl->cmd_frame_id > NL802154_CMD_FRAME_MAX) 2492 return -EINVAL; 2493 } 2494 2495 return 0; 2496 } 2497 2498 static int nl802154_add_llsec_seclevel(struct sk_buff *skb, 2499 struct genl_info *info) 2500 { 2501 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 2502 struct net_device *dev = info->user_ptr[1]; 2503 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 2504 struct ieee802154_llsec_seclevel sl; 2505 2506 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) 2507 return -EOPNOTSUPP; 2508 2509 if (llsec_parse_seclevel(info->attrs[NL802154_ATTR_SEC_LEVEL], 2510 &sl) < 0) 2511 return -EINVAL; 2512 2513 return rdev_add_seclevel(rdev, wpan_dev, &sl); 2514 } 2515 2516 static int nl802154_del_llsec_seclevel(struct sk_buff *skb, 2517 struct genl_info *info) 2518 { 2519 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 2520 struct net_device *dev = info->user_ptr[1]; 2521 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 2522 struct ieee802154_llsec_seclevel sl; 2523 2524 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) 2525 return -EOPNOTSUPP; 2526 2527 if (llsec_parse_seclevel(info->attrs[NL802154_ATTR_SEC_LEVEL], 2528 &sl) < 0) 2529 return -EINVAL; 2530 2531 return rdev_del_seclevel(rdev, wpan_dev, &sl); 2532 } 2533 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */ 2534 2535 #define NL802154_FLAG_NEED_WPAN_PHY 0x01 2536 #define NL802154_FLAG_NEED_NETDEV 0x02 2537 #define NL802154_FLAG_NEED_RTNL 0x04 2538 #define NL802154_FLAG_CHECK_NETDEV_UP 0x08 2539 #define NL802154_FLAG_NEED_WPAN_DEV 0x10 2540 2541 static int nl802154_pre_doit(const struct genl_split_ops *ops, 2542 struct sk_buff *skb, 2543 struct genl_info *info) 2544 { 2545 struct cfg802154_registered_device *rdev; 2546 struct wpan_dev *wpan_dev; 2547 struct net_device *dev; 2548 bool rtnl = ops->internal_flags & NL802154_FLAG_NEED_RTNL; 2549 2550 if (rtnl) 2551 rtnl_lock(); 2552 2553 if (ops->internal_flags & NL802154_FLAG_NEED_WPAN_PHY) { 2554 rdev = cfg802154_get_dev_from_info(genl_info_net(info), info); 2555 if (IS_ERR(rdev)) { 2556 if (rtnl) 2557 rtnl_unlock(); 2558 return PTR_ERR(rdev); 2559 } 2560 info->user_ptr[0] = rdev; 2561 } else if (ops->internal_flags & NL802154_FLAG_NEED_NETDEV || 2562 ops->internal_flags & NL802154_FLAG_NEED_WPAN_DEV) { 2563 ASSERT_RTNL(); 2564 wpan_dev = __cfg802154_wpan_dev_from_attrs(genl_info_net(info), 2565 info->attrs); 2566 if (IS_ERR(wpan_dev)) { 2567 if (rtnl) 2568 rtnl_unlock(); 2569 return PTR_ERR(wpan_dev); 2570 } 2571 2572 dev = wpan_dev->netdev; 2573 rdev = wpan_phy_to_rdev(wpan_dev->wpan_phy); 2574 2575 if (ops->internal_flags & NL802154_FLAG_NEED_NETDEV) { 2576 if (!dev) { 2577 if (rtnl) 2578 rtnl_unlock(); 2579 return -EINVAL; 2580 } 2581 2582 info->user_ptr[1] = dev; 2583 } else { 2584 info->user_ptr[1] = wpan_dev; 2585 } 2586 2587 if (dev) { 2588 if (ops->internal_flags & NL802154_FLAG_CHECK_NETDEV_UP && 2589 !netif_running(dev)) { 2590 if (rtnl) 2591 rtnl_unlock(); 2592 return -ENETDOWN; 2593 } 2594 2595 dev_hold(dev); 2596 } 2597 2598 info->user_ptr[0] = rdev; 2599 } 2600 2601 return 0; 2602 } 2603 2604 static void nl802154_post_doit(const struct genl_split_ops *ops, 2605 struct sk_buff *skb, 2606 struct genl_info *info) 2607 { 2608 if (info->user_ptr[1]) { 2609 if (ops->internal_flags & NL802154_FLAG_NEED_WPAN_DEV) { 2610 struct wpan_dev *wpan_dev = info->user_ptr[1]; 2611 2612 dev_put(wpan_dev->netdev); 2613 } else { 2614 dev_put(info->user_ptr[1]); 2615 } 2616 } 2617 2618 if (ops->internal_flags & NL802154_FLAG_NEED_RTNL) 2619 rtnl_unlock(); 2620 } 2621 2622 static const struct genl_ops nl802154_ops[] = { 2623 { 2624 .cmd = NL802154_CMD_GET_WPAN_PHY, 2625 .validate = GENL_DONT_VALIDATE_STRICT | 2626 GENL_DONT_VALIDATE_DUMP_STRICT, 2627 .doit = nl802154_get_wpan_phy, 2628 .dumpit = nl802154_dump_wpan_phy, 2629 .done = nl802154_dump_wpan_phy_done, 2630 /* can be retrieved by unprivileged users */ 2631 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY | 2632 NL802154_FLAG_NEED_RTNL, 2633 }, 2634 { 2635 .cmd = NL802154_CMD_GET_INTERFACE, 2636 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2637 .doit = nl802154_get_interface, 2638 .dumpit = nl802154_dump_interface, 2639 /* can be retrieved by unprivileged users */ 2640 .internal_flags = NL802154_FLAG_NEED_WPAN_DEV | 2641 NL802154_FLAG_NEED_RTNL, 2642 }, 2643 { 2644 .cmd = NL802154_CMD_NEW_INTERFACE, 2645 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2646 .doit = nl802154_new_interface, 2647 .flags = GENL_ADMIN_PERM, 2648 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY | 2649 NL802154_FLAG_NEED_RTNL, 2650 }, 2651 { 2652 .cmd = NL802154_CMD_DEL_INTERFACE, 2653 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2654 .doit = nl802154_del_interface, 2655 .flags = GENL_ADMIN_PERM, 2656 .internal_flags = NL802154_FLAG_NEED_WPAN_DEV | 2657 NL802154_FLAG_NEED_RTNL, 2658 }, 2659 { 2660 .cmd = NL802154_CMD_SET_CHANNEL, 2661 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2662 .doit = nl802154_set_channel, 2663 .flags = GENL_ADMIN_PERM, 2664 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY | 2665 NL802154_FLAG_NEED_RTNL, 2666 }, 2667 { 2668 .cmd = NL802154_CMD_SET_CCA_MODE, 2669 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2670 .doit = nl802154_set_cca_mode, 2671 .flags = GENL_ADMIN_PERM, 2672 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY | 2673 NL802154_FLAG_NEED_RTNL, 2674 }, 2675 { 2676 .cmd = NL802154_CMD_SET_CCA_ED_LEVEL, 2677 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2678 .doit = nl802154_set_cca_ed_level, 2679 .flags = GENL_ADMIN_PERM, 2680 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY | 2681 NL802154_FLAG_NEED_RTNL, 2682 }, 2683 { 2684 .cmd = NL802154_CMD_SET_TX_POWER, 2685 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2686 .doit = nl802154_set_tx_power, 2687 .flags = GENL_ADMIN_PERM, 2688 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY | 2689 NL802154_FLAG_NEED_RTNL, 2690 }, 2691 { 2692 .cmd = NL802154_CMD_SET_WPAN_PHY_NETNS, 2693 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2694 .doit = nl802154_wpan_phy_netns, 2695 .flags = GENL_ADMIN_PERM, 2696 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY | 2697 NL802154_FLAG_NEED_RTNL, 2698 }, 2699 { 2700 .cmd = NL802154_CMD_SET_PAN_ID, 2701 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2702 .doit = nl802154_set_pan_id, 2703 .flags = GENL_ADMIN_PERM, 2704 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2705 NL802154_FLAG_NEED_RTNL, 2706 }, 2707 { 2708 .cmd = NL802154_CMD_SET_SHORT_ADDR, 2709 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2710 .doit = nl802154_set_short_addr, 2711 .flags = GENL_ADMIN_PERM, 2712 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2713 NL802154_FLAG_NEED_RTNL, 2714 }, 2715 { 2716 .cmd = NL802154_CMD_SET_BACKOFF_EXPONENT, 2717 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2718 .doit = nl802154_set_backoff_exponent, 2719 .flags = GENL_ADMIN_PERM, 2720 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2721 NL802154_FLAG_NEED_RTNL, 2722 }, 2723 { 2724 .cmd = NL802154_CMD_SET_MAX_CSMA_BACKOFFS, 2725 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2726 .doit = nl802154_set_max_csma_backoffs, 2727 .flags = GENL_ADMIN_PERM, 2728 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2729 NL802154_FLAG_NEED_RTNL, 2730 }, 2731 { 2732 .cmd = NL802154_CMD_SET_MAX_FRAME_RETRIES, 2733 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2734 .doit = nl802154_set_max_frame_retries, 2735 .flags = GENL_ADMIN_PERM, 2736 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2737 NL802154_FLAG_NEED_RTNL, 2738 }, 2739 { 2740 .cmd = NL802154_CMD_SET_LBT_MODE, 2741 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2742 .doit = nl802154_set_lbt_mode, 2743 .flags = GENL_ADMIN_PERM, 2744 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2745 NL802154_FLAG_NEED_RTNL, 2746 }, 2747 { 2748 .cmd = NL802154_CMD_SET_ACKREQ_DEFAULT, 2749 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2750 .doit = nl802154_set_ackreq_default, 2751 .flags = GENL_ADMIN_PERM, 2752 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2753 NL802154_FLAG_NEED_RTNL, 2754 }, 2755 { 2756 .cmd = NL802154_CMD_TRIGGER_SCAN, 2757 .doit = nl802154_trigger_scan, 2758 .flags = GENL_ADMIN_PERM, 2759 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2760 NL802154_FLAG_CHECK_NETDEV_UP | 2761 NL802154_FLAG_NEED_RTNL, 2762 }, 2763 { 2764 .cmd = NL802154_CMD_ABORT_SCAN, 2765 .doit = nl802154_abort_scan, 2766 .flags = GENL_ADMIN_PERM, 2767 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2768 NL802154_FLAG_CHECK_NETDEV_UP | 2769 NL802154_FLAG_NEED_RTNL, 2770 }, 2771 { 2772 .cmd = NL802154_CMD_SEND_BEACONS, 2773 .doit = nl802154_send_beacons, 2774 .flags = GENL_ADMIN_PERM, 2775 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2776 NL802154_FLAG_CHECK_NETDEV_UP | 2777 NL802154_FLAG_NEED_RTNL, 2778 }, 2779 { 2780 .cmd = NL802154_CMD_STOP_BEACONS, 2781 .doit = nl802154_stop_beacons, 2782 .flags = GENL_ADMIN_PERM, 2783 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2784 NL802154_FLAG_CHECK_NETDEV_UP | 2785 NL802154_FLAG_NEED_RTNL, 2786 }, 2787 { 2788 .cmd = NL802154_CMD_ASSOCIATE, 2789 .doit = nl802154_associate, 2790 .flags = GENL_ADMIN_PERM, 2791 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2792 NL802154_FLAG_CHECK_NETDEV_UP | 2793 NL802154_FLAG_NEED_RTNL, 2794 }, 2795 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL 2796 { 2797 .cmd = NL802154_CMD_SET_SEC_PARAMS, 2798 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2799 .doit = nl802154_set_llsec_params, 2800 .flags = GENL_ADMIN_PERM, 2801 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2802 NL802154_FLAG_NEED_RTNL, 2803 }, 2804 { 2805 .cmd = NL802154_CMD_GET_SEC_KEY, 2806 .validate = GENL_DONT_VALIDATE_STRICT | 2807 GENL_DONT_VALIDATE_DUMP_STRICT, 2808 /* TODO .doit by matching key id? */ 2809 .dumpit = nl802154_dump_llsec_key, 2810 .flags = GENL_ADMIN_PERM, 2811 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2812 NL802154_FLAG_NEED_RTNL, 2813 }, 2814 { 2815 .cmd = NL802154_CMD_NEW_SEC_KEY, 2816 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2817 .doit = nl802154_add_llsec_key, 2818 .flags = GENL_ADMIN_PERM, 2819 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2820 NL802154_FLAG_NEED_RTNL, 2821 }, 2822 { 2823 .cmd = NL802154_CMD_DEL_SEC_KEY, 2824 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2825 .doit = nl802154_del_llsec_key, 2826 .flags = GENL_ADMIN_PERM, 2827 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2828 NL802154_FLAG_NEED_RTNL, 2829 }, 2830 /* TODO unique identifier must short+pan OR extended_addr */ 2831 { 2832 .cmd = NL802154_CMD_GET_SEC_DEV, 2833 .validate = GENL_DONT_VALIDATE_STRICT | 2834 GENL_DONT_VALIDATE_DUMP_STRICT, 2835 /* TODO .doit by matching extended_addr? */ 2836 .dumpit = nl802154_dump_llsec_dev, 2837 .flags = GENL_ADMIN_PERM, 2838 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2839 NL802154_FLAG_NEED_RTNL, 2840 }, 2841 { 2842 .cmd = NL802154_CMD_NEW_SEC_DEV, 2843 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2844 .doit = nl802154_add_llsec_dev, 2845 .flags = GENL_ADMIN_PERM, 2846 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2847 NL802154_FLAG_NEED_RTNL, 2848 }, 2849 { 2850 .cmd = NL802154_CMD_DEL_SEC_DEV, 2851 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2852 .doit = nl802154_del_llsec_dev, 2853 .flags = GENL_ADMIN_PERM, 2854 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2855 NL802154_FLAG_NEED_RTNL, 2856 }, 2857 /* TODO remove complete devkey, put it as nested? */ 2858 { 2859 .cmd = NL802154_CMD_GET_SEC_DEVKEY, 2860 .validate = GENL_DONT_VALIDATE_STRICT | 2861 GENL_DONT_VALIDATE_DUMP_STRICT, 2862 /* TODO doit by matching ??? */ 2863 .dumpit = nl802154_dump_llsec_devkey, 2864 .flags = GENL_ADMIN_PERM, 2865 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2866 NL802154_FLAG_NEED_RTNL, 2867 }, 2868 { 2869 .cmd = NL802154_CMD_NEW_SEC_DEVKEY, 2870 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2871 .doit = nl802154_add_llsec_devkey, 2872 .flags = GENL_ADMIN_PERM, 2873 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2874 NL802154_FLAG_NEED_RTNL, 2875 }, 2876 { 2877 .cmd = NL802154_CMD_DEL_SEC_DEVKEY, 2878 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2879 .doit = nl802154_del_llsec_devkey, 2880 .flags = GENL_ADMIN_PERM, 2881 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2882 NL802154_FLAG_NEED_RTNL, 2883 }, 2884 { 2885 .cmd = NL802154_CMD_GET_SEC_LEVEL, 2886 .validate = GENL_DONT_VALIDATE_STRICT | 2887 GENL_DONT_VALIDATE_DUMP_STRICT, 2888 /* TODO .doit by matching frame_type? */ 2889 .dumpit = nl802154_dump_llsec_seclevel, 2890 .flags = GENL_ADMIN_PERM, 2891 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2892 NL802154_FLAG_NEED_RTNL, 2893 }, 2894 { 2895 .cmd = NL802154_CMD_NEW_SEC_LEVEL, 2896 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2897 .doit = nl802154_add_llsec_seclevel, 2898 .flags = GENL_ADMIN_PERM, 2899 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2900 NL802154_FLAG_NEED_RTNL, 2901 }, 2902 { 2903 .cmd = NL802154_CMD_DEL_SEC_LEVEL, 2904 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2905 /* TODO match frame_type only? */ 2906 .doit = nl802154_del_llsec_seclevel, 2907 .flags = GENL_ADMIN_PERM, 2908 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2909 NL802154_FLAG_NEED_RTNL, 2910 }, 2911 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */ 2912 }; 2913 2914 static struct genl_family nl802154_fam __ro_after_init = { 2915 .name = NL802154_GENL_NAME, /* have users key off the name instead */ 2916 .hdrsize = 0, /* no private header */ 2917 .version = 1, /* no particular meaning now */ 2918 .maxattr = NL802154_ATTR_MAX, 2919 .policy = nl802154_policy, 2920 .netnsok = true, 2921 .pre_doit = nl802154_pre_doit, 2922 .post_doit = nl802154_post_doit, 2923 .module = THIS_MODULE, 2924 .ops = nl802154_ops, 2925 .n_ops = ARRAY_SIZE(nl802154_ops), 2926 .resv_start_op = NL802154_CMD_DEL_SEC_LEVEL + 1, 2927 .mcgrps = nl802154_mcgrps, 2928 .n_mcgrps = ARRAY_SIZE(nl802154_mcgrps), 2929 }; 2930 2931 /* initialisation/exit functions */ 2932 int __init nl802154_init(void) 2933 { 2934 return genl_register_family(&nl802154_fam); 2935 } 2936 2937 void nl802154_exit(void) 2938 { 2939 genl_unregister_family(&nl802154_fam); 2940 } 2941