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->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->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 /* TODO 1091 * I am not sure about to check here on broadcast pan_id. 1092 * Broadcast is a valid setting, comment from 802.15.4: 1093 * If this value is 0xffff, the device is not associated. 1094 * 1095 * This could useful to simple deassociate an device. 1096 */ 1097 if (pan_id == cpu_to_le16(IEEE802154_PAN_ID_BROADCAST)) 1098 return -EINVAL; 1099 1100 return rdev_set_pan_id(rdev, wpan_dev, pan_id); 1101 } 1102 1103 static int nl802154_set_short_addr(struct sk_buff *skb, struct genl_info *info) 1104 { 1105 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1106 struct net_device *dev = info->user_ptr[1]; 1107 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1108 __le16 short_addr; 1109 1110 /* conflict here while tx/rx calls */ 1111 if (netif_running(dev)) 1112 return -EBUSY; 1113 1114 if (wpan_dev->lowpan_dev) { 1115 if (netif_running(wpan_dev->lowpan_dev)) 1116 return -EBUSY; 1117 } 1118 1119 /* don't change address fields on monitor */ 1120 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR || 1121 !info->attrs[NL802154_ATTR_SHORT_ADDR]) 1122 return -EINVAL; 1123 1124 short_addr = nla_get_le16(info->attrs[NL802154_ATTR_SHORT_ADDR]); 1125 1126 /* TODO 1127 * I am not sure about to check here on broadcast short_addr. 1128 * Broadcast is a valid setting, comment from 802.15.4: 1129 * A value of 0xfffe indicates that the device has 1130 * associated but has not been allocated an address. A 1131 * value of 0xffff indicates that the device does not 1132 * have a short address. 1133 * 1134 * I think we should allow to set these settings but 1135 * don't allow to allow socket communication with it. 1136 */ 1137 if (short_addr == cpu_to_le16(IEEE802154_ADDR_SHORT_UNSPEC) || 1138 short_addr == cpu_to_le16(IEEE802154_ADDR_SHORT_BROADCAST)) 1139 return -EINVAL; 1140 1141 return rdev_set_short_addr(rdev, wpan_dev, short_addr); 1142 } 1143 1144 static int 1145 nl802154_set_backoff_exponent(struct sk_buff *skb, struct genl_info *info) 1146 { 1147 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1148 struct net_device *dev = info->user_ptr[1]; 1149 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1150 u8 min_be, max_be; 1151 1152 /* should be set on netif open inside phy settings */ 1153 if (netif_running(dev)) 1154 return -EBUSY; 1155 1156 if (!info->attrs[NL802154_ATTR_MIN_BE] || 1157 !info->attrs[NL802154_ATTR_MAX_BE]) 1158 return -EINVAL; 1159 1160 min_be = nla_get_u8(info->attrs[NL802154_ATTR_MIN_BE]); 1161 max_be = nla_get_u8(info->attrs[NL802154_ATTR_MAX_BE]); 1162 1163 /* check 802.15.4 constraints */ 1164 if (min_be < rdev->wpan_phy.supported.min_minbe || 1165 min_be > rdev->wpan_phy.supported.max_minbe || 1166 max_be < rdev->wpan_phy.supported.min_maxbe || 1167 max_be > rdev->wpan_phy.supported.max_maxbe || 1168 min_be > max_be) 1169 return -EINVAL; 1170 1171 return rdev_set_backoff_exponent(rdev, wpan_dev, min_be, max_be); 1172 } 1173 1174 static int 1175 nl802154_set_max_csma_backoffs(struct sk_buff *skb, struct genl_info *info) 1176 { 1177 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1178 struct net_device *dev = info->user_ptr[1]; 1179 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1180 u8 max_csma_backoffs; 1181 1182 /* conflict here while other running iface settings */ 1183 if (netif_running(dev)) 1184 return -EBUSY; 1185 1186 if (!info->attrs[NL802154_ATTR_MAX_CSMA_BACKOFFS]) 1187 return -EINVAL; 1188 1189 max_csma_backoffs = nla_get_u8( 1190 info->attrs[NL802154_ATTR_MAX_CSMA_BACKOFFS]); 1191 1192 /* check 802.15.4 constraints */ 1193 if (max_csma_backoffs < rdev->wpan_phy.supported.min_csma_backoffs || 1194 max_csma_backoffs > rdev->wpan_phy.supported.max_csma_backoffs) 1195 return -EINVAL; 1196 1197 return rdev_set_max_csma_backoffs(rdev, wpan_dev, max_csma_backoffs); 1198 } 1199 1200 static int 1201 nl802154_set_max_frame_retries(struct sk_buff *skb, struct genl_info *info) 1202 { 1203 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1204 struct net_device *dev = info->user_ptr[1]; 1205 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1206 s8 max_frame_retries; 1207 1208 if (netif_running(dev)) 1209 return -EBUSY; 1210 1211 if (!info->attrs[NL802154_ATTR_MAX_FRAME_RETRIES]) 1212 return -EINVAL; 1213 1214 max_frame_retries = nla_get_s8( 1215 info->attrs[NL802154_ATTR_MAX_FRAME_RETRIES]); 1216 1217 /* check 802.15.4 constraints */ 1218 if (max_frame_retries < rdev->wpan_phy.supported.min_frame_retries || 1219 max_frame_retries > rdev->wpan_phy.supported.max_frame_retries) 1220 return -EINVAL; 1221 1222 return rdev_set_max_frame_retries(rdev, wpan_dev, max_frame_retries); 1223 } 1224 1225 static int nl802154_set_lbt_mode(struct sk_buff *skb, struct genl_info *info) 1226 { 1227 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1228 struct net_device *dev = info->user_ptr[1]; 1229 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1230 int mode; 1231 1232 if (netif_running(dev)) 1233 return -EBUSY; 1234 1235 if (!info->attrs[NL802154_ATTR_LBT_MODE]) 1236 return -EINVAL; 1237 1238 mode = nla_get_u8(info->attrs[NL802154_ATTR_LBT_MODE]); 1239 1240 if (mode != 0 && mode != 1) 1241 return -EINVAL; 1242 1243 if (!wpan_phy_supported_bool(mode, rdev->wpan_phy.supported.lbt)) 1244 return -EINVAL; 1245 1246 return rdev_set_lbt_mode(rdev, wpan_dev, mode); 1247 } 1248 1249 static int 1250 nl802154_set_ackreq_default(struct sk_buff *skb, struct genl_info *info) 1251 { 1252 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1253 struct net_device *dev = info->user_ptr[1]; 1254 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1255 int ackreq; 1256 1257 if (netif_running(dev)) 1258 return -EBUSY; 1259 1260 if (!info->attrs[NL802154_ATTR_ACKREQ_DEFAULT]) 1261 return -EINVAL; 1262 1263 ackreq = nla_get_u8(info->attrs[NL802154_ATTR_ACKREQ_DEFAULT]); 1264 1265 if (ackreq != 0 && ackreq != 1) 1266 return -EINVAL; 1267 1268 return rdev_set_ackreq_default(rdev, wpan_dev, ackreq); 1269 } 1270 1271 static int nl802154_wpan_phy_netns(struct sk_buff *skb, struct genl_info *info) 1272 { 1273 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1274 struct net *net; 1275 int err; 1276 1277 if (info->attrs[NL802154_ATTR_PID]) { 1278 u32 pid = nla_get_u32(info->attrs[NL802154_ATTR_PID]); 1279 1280 net = get_net_ns_by_pid(pid); 1281 } else if (info->attrs[NL802154_ATTR_NETNS_FD]) { 1282 u32 fd = nla_get_u32(info->attrs[NL802154_ATTR_NETNS_FD]); 1283 1284 net = get_net_ns_by_fd(fd); 1285 } else { 1286 return -EINVAL; 1287 } 1288 1289 if (IS_ERR(net)) 1290 return PTR_ERR(net); 1291 1292 err = 0; 1293 1294 /* check if anything to do */ 1295 if (!net_eq(wpan_phy_net(&rdev->wpan_phy), net)) 1296 err = cfg802154_switch_netns(rdev, net); 1297 1298 put_net(net); 1299 return err; 1300 } 1301 1302 static int nl802154_prep_scan_event_msg(struct sk_buff *msg, 1303 struct cfg802154_registered_device *rdev, 1304 struct wpan_dev *wpan_dev, 1305 u32 portid, u32 seq, int flags, u8 cmd, 1306 struct ieee802154_coord_desc *desc) 1307 { 1308 struct nlattr *nla; 1309 void *hdr; 1310 1311 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd); 1312 if (!hdr) 1313 return -ENOBUFS; 1314 1315 if (nla_put_u32(msg, NL802154_ATTR_WPAN_PHY, rdev->wpan_phy_idx)) 1316 goto nla_put_failure; 1317 1318 if (wpan_dev->netdev && 1319 nla_put_u32(msg, NL802154_ATTR_IFINDEX, wpan_dev->netdev->ifindex)) 1320 goto nla_put_failure; 1321 1322 if (nla_put_u64_64bit(msg, NL802154_ATTR_WPAN_DEV, 1323 wpan_dev_id(wpan_dev), NL802154_ATTR_PAD)) 1324 goto nla_put_failure; 1325 1326 nla = nla_nest_start_noflag(msg, NL802154_ATTR_COORDINATOR); 1327 if (!nla) 1328 goto nla_put_failure; 1329 1330 if (nla_put(msg, NL802154_COORD_PANID, IEEE802154_PAN_ID_LEN, 1331 &desc->addr.pan_id)) 1332 goto nla_put_failure; 1333 1334 if (desc->addr.mode == IEEE802154_ADDR_SHORT) { 1335 if (nla_put(msg, NL802154_COORD_ADDR, 1336 IEEE802154_SHORT_ADDR_LEN, 1337 &desc->addr.short_addr)) 1338 goto nla_put_failure; 1339 } else { 1340 if (nla_put(msg, NL802154_COORD_ADDR, 1341 IEEE802154_EXTENDED_ADDR_LEN, 1342 &desc->addr.extended_addr)) 1343 goto nla_put_failure; 1344 } 1345 1346 if (nla_put_u8(msg, NL802154_COORD_CHANNEL, desc->channel)) 1347 goto nla_put_failure; 1348 1349 if (nla_put_u8(msg, NL802154_COORD_PAGE, desc->page)) 1350 goto nla_put_failure; 1351 1352 if (nla_put_u16(msg, NL802154_COORD_SUPERFRAME_SPEC, 1353 desc->superframe_spec)) 1354 goto nla_put_failure; 1355 1356 if (nla_put_u8(msg, NL802154_COORD_LINK_QUALITY, desc->link_quality)) 1357 goto nla_put_failure; 1358 1359 if (desc->gts_permit && nla_put_flag(msg, NL802154_COORD_GTS_PERMIT)) 1360 goto nla_put_failure; 1361 1362 /* TODO: NL802154_COORD_PAYLOAD_DATA if any */ 1363 1364 nla_nest_end(msg, nla); 1365 1366 genlmsg_end(msg, hdr); 1367 1368 return 0; 1369 1370 nla_put_failure: 1371 genlmsg_cancel(msg, hdr); 1372 1373 return -EMSGSIZE; 1374 } 1375 1376 int nl802154_scan_event(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, 1377 struct ieee802154_coord_desc *desc) 1378 { 1379 struct cfg802154_registered_device *rdev = wpan_phy_to_rdev(wpan_phy); 1380 struct sk_buff *msg; 1381 int ret; 1382 1383 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC); 1384 if (!msg) 1385 return -ENOMEM; 1386 1387 ret = nl802154_prep_scan_event_msg(msg, rdev, wpan_dev, 0, 0, 0, 1388 NL802154_CMD_SCAN_EVENT, 1389 desc); 1390 if (ret < 0) { 1391 nlmsg_free(msg); 1392 return ret; 1393 } 1394 1395 return genlmsg_multicast_netns(&nl802154_fam, wpan_phy_net(wpan_phy), 1396 msg, 0, NL802154_MCGRP_SCAN, GFP_ATOMIC); 1397 } 1398 EXPORT_SYMBOL_GPL(nl802154_scan_event); 1399 1400 static int nl802154_trigger_scan(struct sk_buff *skb, struct genl_info *info) 1401 { 1402 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1403 struct net_device *dev = info->user_ptr[1]; 1404 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1405 struct wpan_phy *wpan_phy = &rdev->wpan_phy; 1406 struct cfg802154_scan_request *request; 1407 u8 type; 1408 int err; 1409 1410 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) { 1411 NL_SET_ERR_MSG(info->extack, "Monitors are not allowed to perform scans"); 1412 return -EOPNOTSUPP; 1413 } 1414 1415 if (!info->attrs[NL802154_ATTR_SCAN_TYPE]) { 1416 NL_SET_ERR_MSG(info->extack, "Malformed request, missing scan type"); 1417 return -EINVAL; 1418 } 1419 1420 if (wpan_phy->flags & WPAN_PHY_FLAG_DATAGRAMS_ONLY) { 1421 NL_SET_ERR_MSG(info->extack, "PHY only supports datagrams"); 1422 return -EOPNOTSUPP; 1423 } 1424 1425 request = kzalloc(sizeof(*request), GFP_KERNEL); 1426 if (!request) 1427 return -ENOMEM; 1428 1429 request->wpan_dev = wpan_dev; 1430 request->wpan_phy = wpan_phy; 1431 1432 type = nla_get_u8(info->attrs[NL802154_ATTR_SCAN_TYPE]); 1433 switch (type) { 1434 case NL802154_SCAN_ACTIVE: 1435 case NL802154_SCAN_PASSIVE: 1436 request->type = type; 1437 break; 1438 default: 1439 NL_SET_ERR_MSG_FMT(info->extack, "Unsupported scan type: %d", type); 1440 err = -EINVAL; 1441 goto free_request; 1442 } 1443 1444 /* Use current page by default */ 1445 if (info->attrs[NL802154_ATTR_PAGE]) 1446 request->page = nla_get_u8(info->attrs[NL802154_ATTR_PAGE]); 1447 else 1448 request->page = wpan_phy->current_page; 1449 1450 /* Scan all supported channels by default */ 1451 if (info->attrs[NL802154_ATTR_SCAN_CHANNELS]) 1452 request->channels = nla_get_u32(info->attrs[NL802154_ATTR_SCAN_CHANNELS]); 1453 else 1454 request->channels = wpan_phy->supported.channels[request->page]; 1455 1456 /* Use maximum duration order by default */ 1457 if (info->attrs[NL802154_ATTR_SCAN_DURATION]) 1458 request->duration = nla_get_u8(info->attrs[NL802154_ATTR_SCAN_DURATION]); 1459 else 1460 request->duration = IEEE802154_MAX_SCAN_DURATION; 1461 1462 err = rdev_trigger_scan(rdev, request); 1463 if (err) { 1464 pr_err("Failure starting scanning (%d)\n", err); 1465 goto free_request; 1466 } 1467 1468 return 0; 1469 1470 free_request: 1471 kfree(request); 1472 1473 return err; 1474 } 1475 1476 static int nl802154_prep_scan_msg(struct sk_buff *msg, 1477 struct cfg802154_registered_device *rdev, 1478 struct wpan_dev *wpan_dev, u32 portid, 1479 u32 seq, int flags, u8 cmd, u8 arg) 1480 { 1481 void *hdr; 1482 1483 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd); 1484 if (!hdr) 1485 return -ENOBUFS; 1486 1487 if (nla_put_u32(msg, NL802154_ATTR_WPAN_PHY, rdev->wpan_phy_idx)) 1488 goto nla_put_failure; 1489 1490 if (wpan_dev->netdev && 1491 nla_put_u32(msg, NL802154_ATTR_IFINDEX, wpan_dev->netdev->ifindex)) 1492 goto nla_put_failure; 1493 1494 if (nla_put_u64_64bit(msg, NL802154_ATTR_WPAN_DEV, 1495 wpan_dev_id(wpan_dev), NL802154_ATTR_PAD)) 1496 goto nla_put_failure; 1497 1498 if (cmd == NL802154_CMD_SCAN_DONE && 1499 nla_put_u8(msg, NL802154_ATTR_SCAN_DONE_REASON, arg)) 1500 goto nla_put_failure; 1501 1502 genlmsg_end(msg, hdr); 1503 1504 return 0; 1505 1506 nla_put_failure: 1507 genlmsg_cancel(msg, hdr); 1508 1509 return -EMSGSIZE; 1510 } 1511 1512 static int nl802154_send_scan_msg(struct cfg802154_registered_device *rdev, 1513 struct wpan_dev *wpan_dev, u8 cmd, u8 arg) 1514 { 1515 struct sk_buff *msg; 1516 int ret; 1517 1518 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); 1519 if (!msg) 1520 return -ENOMEM; 1521 1522 ret = nl802154_prep_scan_msg(msg, rdev, wpan_dev, 0, 0, 0, cmd, arg); 1523 if (ret < 0) { 1524 nlmsg_free(msg); 1525 return ret; 1526 } 1527 1528 return genlmsg_multicast_netns(&nl802154_fam, 1529 wpan_phy_net(&rdev->wpan_phy), msg, 0, 1530 NL802154_MCGRP_SCAN, GFP_KERNEL); 1531 } 1532 1533 int nl802154_scan_started(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev) 1534 { 1535 struct cfg802154_registered_device *rdev = wpan_phy_to_rdev(wpan_phy); 1536 int err; 1537 1538 /* Ignore errors when there are no listeners */ 1539 err = nl802154_send_scan_msg(rdev, wpan_dev, NL802154_CMD_TRIGGER_SCAN, 0); 1540 if (err == -ESRCH) 1541 err = 0; 1542 1543 return err; 1544 } 1545 EXPORT_SYMBOL_GPL(nl802154_scan_started); 1546 1547 int nl802154_scan_done(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, 1548 enum nl802154_scan_done_reasons reason) 1549 { 1550 struct cfg802154_registered_device *rdev = wpan_phy_to_rdev(wpan_phy); 1551 int err; 1552 1553 /* Ignore errors when there are no listeners */ 1554 err = nl802154_send_scan_msg(rdev, wpan_dev, NL802154_CMD_SCAN_DONE, reason); 1555 if (err == -ESRCH) 1556 err = 0; 1557 1558 return err; 1559 } 1560 EXPORT_SYMBOL_GPL(nl802154_scan_done); 1561 1562 static int nl802154_abort_scan(struct sk_buff *skb, struct genl_info *info) 1563 { 1564 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1565 struct net_device *dev = info->user_ptr[1]; 1566 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1567 1568 /* Resources are released in the notification helper above */ 1569 return rdev_abort_scan(rdev, wpan_dev); 1570 } 1571 1572 static int 1573 nl802154_send_beacons(struct sk_buff *skb, struct genl_info *info) 1574 { 1575 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1576 struct net_device *dev = info->user_ptr[1]; 1577 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1578 struct wpan_phy *wpan_phy = &rdev->wpan_phy; 1579 struct cfg802154_beacon_request *request; 1580 int err; 1581 1582 if (wpan_dev->iftype != NL802154_IFTYPE_COORD) { 1583 NL_SET_ERR_MSG(info->extack, "Only coordinators can send beacons"); 1584 return -EOPNOTSUPP; 1585 } 1586 1587 if (wpan_dev->pan_id == cpu_to_le16(IEEE802154_PANID_BROADCAST)) { 1588 NL_SET_ERR_MSG(info->extack, "Device is not part of any PAN"); 1589 return -EPERM; 1590 } 1591 1592 if (wpan_phy->flags & WPAN_PHY_FLAG_DATAGRAMS_ONLY) { 1593 NL_SET_ERR_MSG(info->extack, "PHY only supports datagrams"); 1594 return -EOPNOTSUPP; 1595 } 1596 1597 request = kzalloc(sizeof(*request), GFP_KERNEL); 1598 if (!request) 1599 return -ENOMEM; 1600 1601 request->wpan_dev = wpan_dev; 1602 request->wpan_phy = wpan_phy; 1603 1604 /* Use maximum duration order by default */ 1605 if (info->attrs[NL802154_ATTR_BEACON_INTERVAL]) 1606 request->interval = nla_get_u8(info->attrs[NL802154_ATTR_BEACON_INTERVAL]); 1607 else 1608 request->interval = IEEE802154_MAX_SCAN_DURATION; 1609 1610 err = rdev_send_beacons(rdev, request); 1611 if (err) { 1612 pr_err("Failure starting sending beacons (%d)\n", err); 1613 goto free_request; 1614 } 1615 1616 return 0; 1617 1618 free_request: 1619 kfree(request); 1620 1621 return err; 1622 } 1623 1624 void nl802154_beaconing_done(struct wpan_dev *wpan_dev) 1625 { 1626 /* NOP */ 1627 } 1628 EXPORT_SYMBOL_GPL(nl802154_beaconing_done); 1629 1630 static int 1631 nl802154_stop_beacons(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 = dev->ieee802154_ptr; 1636 1637 /* Resources are released in the notification helper above */ 1638 return rdev_stop_beacons(rdev, wpan_dev); 1639 } 1640 1641 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL 1642 static const struct nla_policy nl802154_dev_addr_policy[NL802154_DEV_ADDR_ATTR_MAX + 1] = { 1643 [NL802154_DEV_ADDR_ATTR_PAN_ID] = { .type = NLA_U16 }, 1644 [NL802154_DEV_ADDR_ATTR_MODE] = { .type = NLA_U32 }, 1645 [NL802154_DEV_ADDR_ATTR_SHORT] = { .type = NLA_U16 }, 1646 [NL802154_DEV_ADDR_ATTR_EXTENDED] = { .type = NLA_U64 }, 1647 }; 1648 1649 static int 1650 ieee802154_llsec_parse_dev_addr(struct nlattr *nla, 1651 struct ieee802154_addr *addr) 1652 { 1653 struct nlattr *attrs[NL802154_DEV_ADDR_ATTR_MAX + 1]; 1654 1655 if (!nla || nla_parse_nested_deprecated(attrs, NL802154_DEV_ADDR_ATTR_MAX, nla, nl802154_dev_addr_policy, NULL)) 1656 return -EINVAL; 1657 1658 if (!attrs[NL802154_DEV_ADDR_ATTR_PAN_ID] || !attrs[NL802154_DEV_ADDR_ATTR_MODE]) 1659 return -EINVAL; 1660 1661 addr->pan_id = nla_get_le16(attrs[NL802154_DEV_ADDR_ATTR_PAN_ID]); 1662 addr->mode = nla_get_u32(attrs[NL802154_DEV_ADDR_ATTR_MODE]); 1663 switch (addr->mode) { 1664 case NL802154_DEV_ADDR_SHORT: 1665 if (!attrs[NL802154_DEV_ADDR_ATTR_SHORT]) 1666 return -EINVAL; 1667 addr->short_addr = nla_get_le16(attrs[NL802154_DEV_ADDR_ATTR_SHORT]); 1668 break; 1669 case NL802154_DEV_ADDR_EXTENDED: 1670 if (!attrs[NL802154_DEV_ADDR_ATTR_EXTENDED]) 1671 return -EINVAL; 1672 addr->extended_addr = nla_get_le64(attrs[NL802154_DEV_ADDR_ATTR_EXTENDED]); 1673 break; 1674 default: 1675 return -EINVAL; 1676 } 1677 1678 return 0; 1679 } 1680 1681 static const struct nla_policy nl802154_key_id_policy[NL802154_KEY_ID_ATTR_MAX + 1] = { 1682 [NL802154_KEY_ID_ATTR_MODE] = { .type = NLA_U32 }, 1683 [NL802154_KEY_ID_ATTR_INDEX] = { .type = NLA_U8 }, 1684 [NL802154_KEY_ID_ATTR_IMPLICIT] = { .type = NLA_NESTED }, 1685 [NL802154_KEY_ID_ATTR_SOURCE_SHORT] = { .type = NLA_U32 }, 1686 [NL802154_KEY_ID_ATTR_SOURCE_EXTENDED] = { .type = NLA_U64 }, 1687 }; 1688 1689 static int 1690 ieee802154_llsec_parse_key_id(struct nlattr *nla, 1691 struct ieee802154_llsec_key_id *desc) 1692 { 1693 struct nlattr *attrs[NL802154_KEY_ID_ATTR_MAX + 1]; 1694 1695 if (!nla || nla_parse_nested_deprecated(attrs, NL802154_KEY_ID_ATTR_MAX, nla, nl802154_key_id_policy, NULL)) 1696 return -EINVAL; 1697 1698 if (!attrs[NL802154_KEY_ID_ATTR_MODE]) 1699 return -EINVAL; 1700 1701 desc->mode = nla_get_u32(attrs[NL802154_KEY_ID_ATTR_MODE]); 1702 switch (desc->mode) { 1703 case NL802154_KEY_ID_MODE_IMPLICIT: 1704 if (!attrs[NL802154_KEY_ID_ATTR_IMPLICIT]) 1705 return -EINVAL; 1706 1707 if (ieee802154_llsec_parse_dev_addr(attrs[NL802154_KEY_ID_ATTR_IMPLICIT], 1708 &desc->device_addr) < 0) 1709 return -EINVAL; 1710 break; 1711 case NL802154_KEY_ID_MODE_INDEX: 1712 break; 1713 case NL802154_KEY_ID_MODE_INDEX_SHORT: 1714 if (!attrs[NL802154_KEY_ID_ATTR_SOURCE_SHORT]) 1715 return -EINVAL; 1716 1717 desc->short_source = nla_get_le32(attrs[NL802154_KEY_ID_ATTR_SOURCE_SHORT]); 1718 break; 1719 case NL802154_KEY_ID_MODE_INDEX_EXTENDED: 1720 if (!attrs[NL802154_KEY_ID_ATTR_SOURCE_EXTENDED]) 1721 return -EINVAL; 1722 1723 desc->extended_source = nla_get_le64(attrs[NL802154_KEY_ID_ATTR_SOURCE_EXTENDED]); 1724 break; 1725 default: 1726 return -EINVAL; 1727 } 1728 1729 if (desc->mode != NL802154_KEY_ID_MODE_IMPLICIT) { 1730 if (!attrs[NL802154_KEY_ID_ATTR_INDEX]) 1731 return -EINVAL; 1732 1733 /* TODO change id to idx */ 1734 desc->id = nla_get_u8(attrs[NL802154_KEY_ID_ATTR_INDEX]); 1735 } 1736 1737 return 0; 1738 } 1739 1740 static int nl802154_set_llsec_params(struct sk_buff *skb, 1741 struct genl_info *info) 1742 { 1743 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1744 struct net_device *dev = info->user_ptr[1]; 1745 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1746 struct ieee802154_llsec_params params; 1747 u32 changed = 0; 1748 int ret; 1749 1750 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) 1751 return -EOPNOTSUPP; 1752 1753 if (info->attrs[NL802154_ATTR_SEC_ENABLED]) { 1754 u8 enabled; 1755 1756 enabled = nla_get_u8(info->attrs[NL802154_ATTR_SEC_ENABLED]); 1757 if (enabled != 0 && enabled != 1) 1758 return -EINVAL; 1759 1760 params.enabled = nla_get_u8(info->attrs[NL802154_ATTR_SEC_ENABLED]); 1761 changed |= IEEE802154_LLSEC_PARAM_ENABLED; 1762 } 1763 1764 if (info->attrs[NL802154_ATTR_SEC_OUT_KEY_ID]) { 1765 ret = ieee802154_llsec_parse_key_id(info->attrs[NL802154_ATTR_SEC_OUT_KEY_ID], 1766 ¶ms.out_key); 1767 if (ret < 0) 1768 return ret; 1769 1770 changed |= IEEE802154_LLSEC_PARAM_OUT_KEY; 1771 } 1772 1773 if (info->attrs[NL802154_ATTR_SEC_OUT_LEVEL]) { 1774 params.out_level = nla_get_u32(info->attrs[NL802154_ATTR_SEC_OUT_LEVEL]); 1775 if (params.out_level > NL802154_SECLEVEL_MAX) 1776 return -EINVAL; 1777 1778 changed |= IEEE802154_LLSEC_PARAM_OUT_LEVEL; 1779 } 1780 1781 if (info->attrs[NL802154_ATTR_SEC_FRAME_COUNTER]) { 1782 params.frame_counter = nla_get_be32(info->attrs[NL802154_ATTR_SEC_FRAME_COUNTER]); 1783 changed |= IEEE802154_LLSEC_PARAM_FRAME_COUNTER; 1784 } 1785 1786 return rdev_set_llsec_params(rdev, wpan_dev, ¶ms, changed); 1787 } 1788 1789 static int nl802154_send_key(struct sk_buff *msg, u32 cmd, u32 portid, 1790 u32 seq, int flags, 1791 struct cfg802154_registered_device *rdev, 1792 struct net_device *dev, 1793 const struct ieee802154_llsec_key_entry *key) 1794 { 1795 void *hdr; 1796 u32 commands[NL802154_CMD_FRAME_NR_IDS / 32]; 1797 struct nlattr *nl_key, *nl_key_id; 1798 1799 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd); 1800 if (!hdr) 1801 return -ENOBUFS; 1802 1803 if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex)) 1804 goto nla_put_failure; 1805 1806 nl_key = nla_nest_start_noflag(msg, NL802154_ATTR_SEC_KEY); 1807 if (!nl_key) 1808 goto nla_put_failure; 1809 1810 nl_key_id = nla_nest_start_noflag(msg, NL802154_KEY_ATTR_ID); 1811 if (!nl_key_id) 1812 goto nla_put_failure; 1813 1814 if (ieee802154_llsec_send_key_id(msg, &key->id) < 0) 1815 goto nla_put_failure; 1816 1817 nla_nest_end(msg, nl_key_id); 1818 1819 if (nla_put_u8(msg, NL802154_KEY_ATTR_USAGE_FRAMES, 1820 key->key->frame_types)) 1821 goto nla_put_failure; 1822 1823 if (key->key->frame_types & BIT(NL802154_FRAME_CMD)) { 1824 /* TODO for each nested */ 1825 memset(commands, 0, sizeof(commands)); 1826 commands[7] = key->key->cmd_frame_ids; 1827 if (nla_put(msg, NL802154_KEY_ATTR_USAGE_CMDS, 1828 sizeof(commands), commands)) 1829 goto nla_put_failure; 1830 } 1831 1832 if (nla_put(msg, NL802154_KEY_ATTR_BYTES, NL802154_KEY_SIZE, 1833 key->key->key)) 1834 goto nla_put_failure; 1835 1836 nla_nest_end(msg, nl_key); 1837 genlmsg_end(msg, hdr); 1838 1839 return 0; 1840 1841 nla_put_failure: 1842 genlmsg_cancel(msg, hdr); 1843 return -EMSGSIZE; 1844 } 1845 1846 static int 1847 nl802154_dump_llsec_key(struct sk_buff *skb, struct netlink_callback *cb) 1848 { 1849 struct cfg802154_registered_device *rdev = NULL; 1850 struct ieee802154_llsec_key_entry *key; 1851 struct ieee802154_llsec_table *table; 1852 struct wpan_dev *wpan_dev; 1853 int err; 1854 1855 err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev); 1856 if (err) 1857 return err; 1858 1859 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) { 1860 err = skb->len; 1861 goto out_err; 1862 } 1863 1864 if (!wpan_dev->netdev) { 1865 err = -EINVAL; 1866 goto out_err; 1867 } 1868 1869 rdev_lock_llsec_table(rdev, wpan_dev); 1870 rdev_get_llsec_table(rdev, wpan_dev, &table); 1871 1872 /* TODO make it like station dump */ 1873 if (cb->args[2]) 1874 goto out; 1875 1876 list_for_each_entry(key, &table->keys, list) { 1877 if (nl802154_send_key(skb, NL802154_CMD_NEW_SEC_KEY, 1878 NETLINK_CB(cb->skb).portid, 1879 cb->nlh->nlmsg_seq, NLM_F_MULTI, 1880 rdev, wpan_dev->netdev, key) < 0) { 1881 /* TODO */ 1882 err = -EIO; 1883 rdev_unlock_llsec_table(rdev, wpan_dev); 1884 goto out_err; 1885 } 1886 } 1887 1888 cb->args[2] = 1; 1889 1890 out: 1891 rdev_unlock_llsec_table(rdev, wpan_dev); 1892 err = skb->len; 1893 out_err: 1894 nl802154_finish_wpan_dev_dump(rdev); 1895 1896 return err; 1897 } 1898 1899 static const struct nla_policy nl802154_key_policy[NL802154_KEY_ATTR_MAX + 1] = { 1900 [NL802154_KEY_ATTR_ID] = { NLA_NESTED }, 1901 /* TODO handle it as for_each_nested and NLA_FLAG? */ 1902 [NL802154_KEY_ATTR_USAGE_FRAMES] = { NLA_U8 }, 1903 /* TODO handle it as for_each_nested, not static array? */ 1904 [NL802154_KEY_ATTR_USAGE_CMDS] = { .len = NL802154_CMD_FRAME_NR_IDS / 8 }, 1905 [NL802154_KEY_ATTR_BYTES] = { .len = NL802154_KEY_SIZE }, 1906 }; 1907 1908 static int nl802154_add_llsec_key(struct sk_buff *skb, struct genl_info *info) 1909 { 1910 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1911 struct net_device *dev = info->user_ptr[1]; 1912 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1913 struct nlattr *attrs[NL802154_KEY_ATTR_MAX + 1]; 1914 struct ieee802154_llsec_key key = { }; 1915 struct ieee802154_llsec_key_id id = { }; 1916 u32 commands[NL802154_CMD_FRAME_NR_IDS / 32] = { }; 1917 1918 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) 1919 return -EOPNOTSUPP; 1920 1921 if (!info->attrs[NL802154_ATTR_SEC_KEY] || 1922 nla_parse_nested_deprecated(attrs, NL802154_KEY_ATTR_MAX, info->attrs[NL802154_ATTR_SEC_KEY], nl802154_key_policy, info->extack)) 1923 return -EINVAL; 1924 1925 if (!attrs[NL802154_KEY_ATTR_USAGE_FRAMES] || 1926 !attrs[NL802154_KEY_ATTR_BYTES]) 1927 return -EINVAL; 1928 1929 if (ieee802154_llsec_parse_key_id(attrs[NL802154_KEY_ATTR_ID], &id) < 0) 1930 return -ENOBUFS; 1931 1932 key.frame_types = nla_get_u8(attrs[NL802154_KEY_ATTR_USAGE_FRAMES]); 1933 if (key.frame_types > BIT(NL802154_FRAME_MAX) || 1934 ((key.frame_types & BIT(NL802154_FRAME_CMD)) && 1935 !attrs[NL802154_KEY_ATTR_USAGE_CMDS])) 1936 return -EINVAL; 1937 1938 if (attrs[NL802154_KEY_ATTR_USAGE_CMDS]) { 1939 /* TODO for each nested */ 1940 nla_memcpy(commands, attrs[NL802154_KEY_ATTR_USAGE_CMDS], 1941 NL802154_CMD_FRAME_NR_IDS / 8); 1942 1943 /* TODO understand the -EINVAL logic here? last condition */ 1944 if (commands[0] || commands[1] || commands[2] || commands[3] || 1945 commands[4] || commands[5] || commands[6] || 1946 commands[7] > BIT(NL802154_CMD_FRAME_MAX)) 1947 return -EINVAL; 1948 1949 key.cmd_frame_ids = commands[7]; 1950 } else { 1951 key.cmd_frame_ids = 0; 1952 } 1953 1954 nla_memcpy(key.key, attrs[NL802154_KEY_ATTR_BYTES], NL802154_KEY_SIZE); 1955 1956 if (ieee802154_llsec_parse_key_id(attrs[NL802154_KEY_ATTR_ID], &id) < 0) 1957 return -ENOBUFS; 1958 1959 return rdev_add_llsec_key(rdev, wpan_dev, &id, &key); 1960 } 1961 1962 static int nl802154_del_llsec_key(struct sk_buff *skb, struct genl_info *info) 1963 { 1964 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1965 struct net_device *dev = info->user_ptr[1]; 1966 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1967 struct nlattr *attrs[NL802154_KEY_ATTR_MAX + 1]; 1968 struct ieee802154_llsec_key_id id; 1969 1970 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) 1971 return -EOPNOTSUPP; 1972 1973 if (!info->attrs[NL802154_ATTR_SEC_KEY] || 1974 nla_parse_nested_deprecated(attrs, NL802154_KEY_ATTR_MAX, info->attrs[NL802154_ATTR_SEC_KEY], nl802154_key_policy, info->extack)) 1975 return -EINVAL; 1976 1977 if (ieee802154_llsec_parse_key_id(attrs[NL802154_KEY_ATTR_ID], &id) < 0) 1978 return -ENOBUFS; 1979 1980 return rdev_del_llsec_key(rdev, wpan_dev, &id); 1981 } 1982 1983 static int nl802154_send_device(struct sk_buff *msg, u32 cmd, u32 portid, 1984 u32 seq, int flags, 1985 struct cfg802154_registered_device *rdev, 1986 struct net_device *dev, 1987 const struct ieee802154_llsec_device *dev_desc) 1988 { 1989 void *hdr; 1990 struct nlattr *nl_device; 1991 1992 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd); 1993 if (!hdr) 1994 return -ENOBUFS; 1995 1996 if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex)) 1997 goto nla_put_failure; 1998 1999 nl_device = nla_nest_start_noflag(msg, NL802154_ATTR_SEC_DEVICE); 2000 if (!nl_device) 2001 goto nla_put_failure; 2002 2003 if (nla_put_u32(msg, NL802154_DEV_ATTR_FRAME_COUNTER, 2004 dev_desc->frame_counter) || 2005 nla_put_le16(msg, NL802154_DEV_ATTR_PAN_ID, dev_desc->pan_id) || 2006 nla_put_le16(msg, NL802154_DEV_ATTR_SHORT_ADDR, 2007 dev_desc->short_addr) || 2008 nla_put_le64(msg, NL802154_DEV_ATTR_EXTENDED_ADDR, 2009 dev_desc->hwaddr, NL802154_DEV_ATTR_PAD) || 2010 nla_put_u8(msg, NL802154_DEV_ATTR_SECLEVEL_EXEMPT, 2011 dev_desc->seclevel_exempt) || 2012 nla_put_u32(msg, NL802154_DEV_ATTR_KEY_MODE, dev_desc->key_mode)) 2013 goto nla_put_failure; 2014 2015 nla_nest_end(msg, nl_device); 2016 genlmsg_end(msg, hdr); 2017 2018 return 0; 2019 2020 nla_put_failure: 2021 genlmsg_cancel(msg, hdr); 2022 return -EMSGSIZE; 2023 } 2024 2025 static int 2026 nl802154_dump_llsec_dev(struct sk_buff *skb, struct netlink_callback *cb) 2027 { 2028 struct cfg802154_registered_device *rdev = NULL; 2029 struct ieee802154_llsec_device *dev; 2030 struct ieee802154_llsec_table *table; 2031 struct wpan_dev *wpan_dev; 2032 int err; 2033 2034 err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev); 2035 if (err) 2036 return err; 2037 2038 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) { 2039 err = skb->len; 2040 goto out_err; 2041 } 2042 2043 if (!wpan_dev->netdev) { 2044 err = -EINVAL; 2045 goto out_err; 2046 } 2047 2048 rdev_lock_llsec_table(rdev, wpan_dev); 2049 rdev_get_llsec_table(rdev, wpan_dev, &table); 2050 2051 /* TODO make it like station dump */ 2052 if (cb->args[2]) 2053 goto out; 2054 2055 list_for_each_entry(dev, &table->devices, list) { 2056 if (nl802154_send_device(skb, NL802154_CMD_NEW_SEC_LEVEL, 2057 NETLINK_CB(cb->skb).portid, 2058 cb->nlh->nlmsg_seq, NLM_F_MULTI, 2059 rdev, wpan_dev->netdev, dev) < 0) { 2060 /* TODO */ 2061 err = -EIO; 2062 rdev_unlock_llsec_table(rdev, wpan_dev); 2063 goto out_err; 2064 } 2065 } 2066 2067 cb->args[2] = 1; 2068 2069 out: 2070 rdev_unlock_llsec_table(rdev, wpan_dev); 2071 err = skb->len; 2072 out_err: 2073 nl802154_finish_wpan_dev_dump(rdev); 2074 2075 return err; 2076 } 2077 2078 static const struct nla_policy nl802154_dev_policy[NL802154_DEV_ATTR_MAX + 1] = { 2079 [NL802154_DEV_ATTR_FRAME_COUNTER] = { NLA_U32 }, 2080 [NL802154_DEV_ATTR_PAN_ID] = { .type = NLA_U16 }, 2081 [NL802154_DEV_ATTR_SHORT_ADDR] = { .type = NLA_U16 }, 2082 [NL802154_DEV_ATTR_EXTENDED_ADDR] = { .type = NLA_U64 }, 2083 [NL802154_DEV_ATTR_SECLEVEL_EXEMPT] = { NLA_U8 }, 2084 [NL802154_DEV_ATTR_KEY_MODE] = { NLA_U32 }, 2085 }; 2086 2087 static int 2088 ieee802154_llsec_parse_device(struct nlattr *nla, 2089 struct ieee802154_llsec_device *dev) 2090 { 2091 struct nlattr *attrs[NL802154_DEV_ATTR_MAX + 1]; 2092 2093 if (!nla || nla_parse_nested_deprecated(attrs, NL802154_DEV_ATTR_MAX, nla, nl802154_dev_policy, NULL)) 2094 return -EINVAL; 2095 2096 memset(dev, 0, sizeof(*dev)); 2097 2098 if (!attrs[NL802154_DEV_ATTR_FRAME_COUNTER] || 2099 !attrs[NL802154_DEV_ATTR_PAN_ID] || 2100 !attrs[NL802154_DEV_ATTR_SHORT_ADDR] || 2101 !attrs[NL802154_DEV_ATTR_EXTENDED_ADDR] || 2102 !attrs[NL802154_DEV_ATTR_SECLEVEL_EXEMPT] || 2103 !attrs[NL802154_DEV_ATTR_KEY_MODE]) 2104 return -EINVAL; 2105 2106 /* TODO be32 */ 2107 dev->frame_counter = nla_get_u32(attrs[NL802154_DEV_ATTR_FRAME_COUNTER]); 2108 dev->pan_id = nla_get_le16(attrs[NL802154_DEV_ATTR_PAN_ID]); 2109 dev->short_addr = nla_get_le16(attrs[NL802154_DEV_ATTR_SHORT_ADDR]); 2110 /* TODO rename hwaddr to extended_addr */ 2111 dev->hwaddr = nla_get_le64(attrs[NL802154_DEV_ATTR_EXTENDED_ADDR]); 2112 dev->seclevel_exempt = nla_get_u8(attrs[NL802154_DEV_ATTR_SECLEVEL_EXEMPT]); 2113 dev->key_mode = nla_get_u32(attrs[NL802154_DEV_ATTR_KEY_MODE]); 2114 2115 if (dev->key_mode > NL802154_DEVKEY_MAX || 2116 (dev->seclevel_exempt != 0 && dev->seclevel_exempt != 1)) 2117 return -EINVAL; 2118 2119 return 0; 2120 } 2121 2122 static int nl802154_add_llsec_dev(struct sk_buff *skb, struct genl_info *info) 2123 { 2124 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 2125 struct net_device *dev = info->user_ptr[1]; 2126 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 2127 struct ieee802154_llsec_device dev_desc; 2128 2129 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) 2130 return -EOPNOTSUPP; 2131 2132 if (ieee802154_llsec_parse_device(info->attrs[NL802154_ATTR_SEC_DEVICE], 2133 &dev_desc) < 0) 2134 return -EINVAL; 2135 2136 return rdev_add_device(rdev, wpan_dev, &dev_desc); 2137 } 2138 2139 static int nl802154_del_llsec_dev(struct sk_buff *skb, struct genl_info *info) 2140 { 2141 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 2142 struct net_device *dev = info->user_ptr[1]; 2143 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 2144 struct nlattr *attrs[NL802154_DEV_ATTR_MAX + 1]; 2145 __le64 extended_addr; 2146 2147 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) 2148 return -EOPNOTSUPP; 2149 2150 if (!info->attrs[NL802154_ATTR_SEC_DEVICE] || 2151 nla_parse_nested_deprecated(attrs, NL802154_DEV_ATTR_MAX, info->attrs[NL802154_ATTR_SEC_DEVICE], nl802154_dev_policy, info->extack)) 2152 return -EINVAL; 2153 2154 if (!attrs[NL802154_DEV_ATTR_EXTENDED_ADDR]) 2155 return -EINVAL; 2156 2157 extended_addr = nla_get_le64(attrs[NL802154_DEV_ATTR_EXTENDED_ADDR]); 2158 return rdev_del_device(rdev, wpan_dev, extended_addr); 2159 } 2160 2161 static int nl802154_send_devkey(struct sk_buff *msg, u32 cmd, u32 portid, 2162 u32 seq, int flags, 2163 struct cfg802154_registered_device *rdev, 2164 struct net_device *dev, __le64 extended_addr, 2165 const struct ieee802154_llsec_device_key *devkey) 2166 { 2167 void *hdr; 2168 struct nlattr *nl_devkey, *nl_key_id; 2169 2170 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd); 2171 if (!hdr) 2172 return -ENOBUFS; 2173 2174 if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex)) 2175 goto nla_put_failure; 2176 2177 nl_devkey = nla_nest_start_noflag(msg, NL802154_ATTR_SEC_DEVKEY); 2178 if (!nl_devkey) 2179 goto nla_put_failure; 2180 2181 if (nla_put_le64(msg, NL802154_DEVKEY_ATTR_EXTENDED_ADDR, 2182 extended_addr, NL802154_DEVKEY_ATTR_PAD) || 2183 nla_put_u32(msg, NL802154_DEVKEY_ATTR_FRAME_COUNTER, 2184 devkey->frame_counter)) 2185 goto nla_put_failure; 2186 2187 nl_key_id = nla_nest_start_noflag(msg, NL802154_DEVKEY_ATTR_ID); 2188 if (!nl_key_id) 2189 goto nla_put_failure; 2190 2191 if (ieee802154_llsec_send_key_id(msg, &devkey->key_id) < 0) 2192 goto nla_put_failure; 2193 2194 nla_nest_end(msg, nl_key_id); 2195 nla_nest_end(msg, nl_devkey); 2196 genlmsg_end(msg, hdr); 2197 2198 return 0; 2199 2200 nla_put_failure: 2201 genlmsg_cancel(msg, hdr); 2202 return -EMSGSIZE; 2203 } 2204 2205 static int 2206 nl802154_dump_llsec_devkey(struct sk_buff *skb, struct netlink_callback *cb) 2207 { 2208 struct cfg802154_registered_device *rdev = NULL; 2209 struct ieee802154_llsec_device_key *kpos; 2210 struct ieee802154_llsec_device *dpos; 2211 struct ieee802154_llsec_table *table; 2212 struct wpan_dev *wpan_dev; 2213 int err; 2214 2215 err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev); 2216 if (err) 2217 return err; 2218 2219 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) { 2220 err = skb->len; 2221 goto out_err; 2222 } 2223 2224 if (!wpan_dev->netdev) { 2225 err = -EINVAL; 2226 goto out_err; 2227 } 2228 2229 rdev_lock_llsec_table(rdev, wpan_dev); 2230 rdev_get_llsec_table(rdev, wpan_dev, &table); 2231 2232 /* TODO make it like station dump */ 2233 if (cb->args[2]) 2234 goto out; 2235 2236 /* TODO look if remove devkey and do some nested attribute */ 2237 list_for_each_entry(dpos, &table->devices, list) { 2238 list_for_each_entry(kpos, &dpos->keys, list) { 2239 if (nl802154_send_devkey(skb, 2240 NL802154_CMD_NEW_SEC_LEVEL, 2241 NETLINK_CB(cb->skb).portid, 2242 cb->nlh->nlmsg_seq, 2243 NLM_F_MULTI, rdev, 2244 wpan_dev->netdev, 2245 dpos->hwaddr, 2246 kpos) < 0) { 2247 /* TODO */ 2248 err = -EIO; 2249 rdev_unlock_llsec_table(rdev, wpan_dev); 2250 goto out_err; 2251 } 2252 } 2253 } 2254 2255 cb->args[2] = 1; 2256 2257 out: 2258 rdev_unlock_llsec_table(rdev, wpan_dev); 2259 err = skb->len; 2260 out_err: 2261 nl802154_finish_wpan_dev_dump(rdev); 2262 2263 return err; 2264 } 2265 2266 static const struct nla_policy nl802154_devkey_policy[NL802154_DEVKEY_ATTR_MAX + 1] = { 2267 [NL802154_DEVKEY_ATTR_FRAME_COUNTER] = { NLA_U32 }, 2268 [NL802154_DEVKEY_ATTR_EXTENDED_ADDR] = { NLA_U64 }, 2269 [NL802154_DEVKEY_ATTR_ID] = { NLA_NESTED }, 2270 }; 2271 2272 static int nl802154_add_llsec_devkey(struct sk_buff *skb, struct genl_info *info) 2273 { 2274 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 2275 struct net_device *dev = info->user_ptr[1]; 2276 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 2277 struct nlattr *attrs[NL802154_DEVKEY_ATTR_MAX + 1]; 2278 struct ieee802154_llsec_device_key key; 2279 __le64 extended_addr; 2280 2281 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) 2282 return -EOPNOTSUPP; 2283 2284 if (!info->attrs[NL802154_ATTR_SEC_DEVKEY] || 2285 nla_parse_nested_deprecated(attrs, NL802154_DEVKEY_ATTR_MAX, info->attrs[NL802154_ATTR_SEC_DEVKEY], nl802154_devkey_policy, info->extack) < 0) 2286 return -EINVAL; 2287 2288 if (!attrs[NL802154_DEVKEY_ATTR_FRAME_COUNTER] || 2289 !attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR]) 2290 return -EINVAL; 2291 2292 /* TODO change key.id ? */ 2293 if (ieee802154_llsec_parse_key_id(attrs[NL802154_DEVKEY_ATTR_ID], 2294 &key.key_id) < 0) 2295 return -ENOBUFS; 2296 2297 /* TODO be32 */ 2298 key.frame_counter = nla_get_u32(attrs[NL802154_DEVKEY_ATTR_FRAME_COUNTER]); 2299 /* TODO change naming hwaddr -> extended_addr 2300 * check unique identifier short+pan OR extended_addr 2301 */ 2302 extended_addr = nla_get_le64(attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR]); 2303 return rdev_add_devkey(rdev, wpan_dev, extended_addr, &key); 2304 } 2305 2306 static int nl802154_del_llsec_devkey(struct sk_buff *skb, struct genl_info *info) 2307 { 2308 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 2309 struct net_device *dev = info->user_ptr[1]; 2310 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 2311 struct nlattr *attrs[NL802154_DEVKEY_ATTR_MAX + 1]; 2312 struct ieee802154_llsec_device_key key; 2313 __le64 extended_addr; 2314 2315 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) 2316 return -EOPNOTSUPP; 2317 2318 if (!info->attrs[NL802154_ATTR_SEC_DEVKEY] || 2319 nla_parse_nested_deprecated(attrs, NL802154_DEVKEY_ATTR_MAX, info->attrs[NL802154_ATTR_SEC_DEVKEY], nl802154_devkey_policy, info->extack)) 2320 return -EINVAL; 2321 2322 if (!attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR]) 2323 return -EINVAL; 2324 2325 /* TODO change key.id ? */ 2326 if (ieee802154_llsec_parse_key_id(attrs[NL802154_DEVKEY_ATTR_ID], 2327 &key.key_id) < 0) 2328 return -ENOBUFS; 2329 2330 /* TODO change naming hwaddr -> extended_addr 2331 * check unique identifier short+pan OR extended_addr 2332 */ 2333 extended_addr = nla_get_le64(attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR]); 2334 return rdev_del_devkey(rdev, wpan_dev, extended_addr, &key); 2335 } 2336 2337 static int nl802154_send_seclevel(struct sk_buff *msg, u32 cmd, u32 portid, 2338 u32 seq, int flags, 2339 struct cfg802154_registered_device *rdev, 2340 struct net_device *dev, 2341 const struct ieee802154_llsec_seclevel *sl) 2342 { 2343 void *hdr; 2344 struct nlattr *nl_seclevel; 2345 2346 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd); 2347 if (!hdr) 2348 return -ENOBUFS; 2349 2350 if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex)) 2351 goto nla_put_failure; 2352 2353 nl_seclevel = nla_nest_start_noflag(msg, NL802154_ATTR_SEC_LEVEL); 2354 if (!nl_seclevel) 2355 goto nla_put_failure; 2356 2357 if (nla_put_u32(msg, NL802154_SECLEVEL_ATTR_FRAME, sl->frame_type) || 2358 nla_put_u32(msg, NL802154_SECLEVEL_ATTR_LEVELS, sl->sec_levels) || 2359 nla_put_u8(msg, NL802154_SECLEVEL_ATTR_DEV_OVERRIDE, 2360 sl->device_override)) 2361 goto nla_put_failure; 2362 2363 if (sl->frame_type == NL802154_FRAME_CMD) { 2364 if (nla_put_u32(msg, NL802154_SECLEVEL_ATTR_CMD_FRAME, 2365 sl->cmd_frame_id)) 2366 goto nla_put_failure; 2367 } 2368 2369 nla_nest_end(msg, nl_seclevel); 2370 genlmsg_end(msg, hdr); 2371 2372 return 0; 2373 2374 nla_put_failure: 2375 genlmsg_cancel(msg, hdr); 2376 return -EMSGSIZE; 2377 } 2378 2379 static int 2380 nl802154_dump_llsec_seclevel(struct sk_buff *skb, struct netlink_callback *cb) 2381 { 2382 struct cfg802154_registered_device *rdev = NULL; 2383 struct ieee802154_llsec_seclevel *sl; 2384 struct ieee802154_llsec_table *table; 2385 struct wpan_dev *wpan_dev; 2386 int err; 2387 2388 err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev); 2389 if (err) 2390 return err; 2391 2392 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) { 2393 err = skb->len; 2394 goto out_err; 2395 } 2396 2397 if (!wpan_dev->netdev) { 2398 err = -EINVAL; 2399 goto out_err; 2400 } 2401 2402 rdev_lock_llsec_table(rdev, wpan_dev); 2403 rdev_get_llsec_table(rdev, wpan_dev, &table); 2404 2405 /* TODO make it like station dump */ 2406 if (cb->args[2]) 2407 goto out; 2408 2409 list_for_each_entry(sl, &table->security_levels, list) { 2410 if (nl802154_send_seclevel(skb, NL802154_CMD_NEW_SEC_LEVEL, 2411 NETLINK_CB(cb->skb).portid, 2412 cb->nlh->nlmsg_seq, NLM_F_MULTI, 2413 rdev, wpan_dev->netdev, sl) < 0) { 2414 /* TODO */ 2415 err = -EIO; 2416 rdev_unlock_llsec_table(rdev, wpan_dev); 2417 goto out_err; 2418 } 2419 } 2420 2421 cb->args[2] = 1; 2422 2423 out: 2424 rdev_unlock_llsec_table(rdev, wpan_dev); 2425 err = skb->len; 2426 out_err: 2427 nl802154_finish_wpan_dev_dump(rdev); 2428 2429 return err; 2430 } 2431 2432 static const struct nla_policy nl802154_seclevel_policy[NL802154_SECLEVEL_ATTR_MAX + 1] = { 2433 [NL802154_SECLEVEL_ATTR_LEVELS] = { .type = NLA_U8 }, 2434 [NL802154_SECLEVEL_ATTR_FRAME] = { .type = NLA_U32 }, 2435 [NL802154_SECLEVEL_ATTR_CMD_FRAME] = { .type = NLA_U32 }, 2436 [NL802154_SECLEVEL_ATTR_DEV_OVERRIDE] = { .type = NLA_U8 }, 2437 }; 2438 2439 static int 2440 llsec_parse_seclevel(struct nlattr *nla, struct ieee802154_llsec_seclevel *sl) 2441 { 2442 struct nlattr *attrs[NL802154_SECLEVEL_ATTR_MAX + 1]; 2443 2444 if (!nla || nla_parse_nested_deprecated(attrs, NL802154_SECLEVEL_ATTR_MAX, nla, nl802154_seclevel_policy, NULL)) 2445 return -EINVAL; 2446 2447 memset(sl, 0, sizeof(*sl)); 2448 2449 if (!attrs[NL802154_SECLEVEL_ATTR_LEVELS] || 2450 !attrs[NL802154_SECLEVEL_ATTR_FRAME] || 2451 !attrs[NL802154_SECLEVEL_ATTR_DEV_OVERRIDE]) 2452 return -EINVAL; 2453 2454 sl->sec_levels = nla_get_u8(attrs[NL802154_SECLEVEL_ATTR_LEVELS]); 2455 sl->frame_type = nla_get_u32(attrs[NL802154_SECLEVEL_ATTR_FRAME]); 2456 sl->device_override = nla_get_u8(attrs[NL802154_SECLEVEL_ATTR_DEV_OVERRIDE]); 2457 if (sl->frame_type > NL802154_FRAME_MAX || 2458 (sl->device_override != 0 && sl->device_override != 1)) 2459 return -EINVAL; 2460 2461 if (sl->frame_type == NL802154_FRAME_CMD) { 2462 if (!attrs[NL802154_SECLEVEL_ATTR_CMD_FRAME]) 2463 return -EINVAL; 2464 2465 sl->cmd_frame_id = nla_get_u32(attrs[NL802154_SECLEVEL_ATTR_CMD_FRAME]); 2466 if (sl->cmd_frame_id > NL802154_CMD_FRAME_MAX) 2467 return -EINVAL; 2468 } 2469 2470 return 0; 2471 } 2472 2473 static int nl802154_add_llsec_seclevel(struct sk_buff *skb, 2474 struct genl_info *info) 2475 { 2476 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 2477 struct net_device *dev = info->user_ptr[1]; 2478 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 2479 struct ieee802154_llsec_seclevel sl; 2480 2481 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) 2482 return -EOPNOTSUPP; 2483 2484 if (llsec_parse_seclevel(info->attrs[NL802154_ATTR_SEC_LEVEL], 2485 &sl) < 0) 2486 return -EINVAL; 2487 2488 return rdev_add_seclevel(rdev, wpan_dev, &sl); 2489 } 2490 2491 static int nl802154_del_llsec_seclevel(struct sk_buff *skb, 2492 struct genl_info *info) 2493 { 2494 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 2495 struct net_device *dev = info->user_ptr[1]; 2496 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 2497 struct ieee802154_llsec_seclevel sl; 2498 2499 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) 2500 return -EOPNOTSUPP; 2501 2502 if (llsec_parse_seclevel(info->attrs[NL802154_ATTR_SEC_LEVEL], 2503 &sl) < 0) 2504 return -EINVAL; 2505 2506 return rdev_del_seclevel(rdev, wpan_dev, &sl); 2507 } 2508 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */ 2509 2510 #define NL802154_FLAG_NEED_WPAN_PHY 0x01 2511 #define NL802154_FLAG_NEED_NETDEV 0x02 2512 #define NL802154_FLAG_NEED_RTNL 0x04 2513 #define NL802154_FLAG_CHECK_NETDEV_UP 0x08 2514 #define NL802154_FLAG_NEED_WPAN_DEV 0x10 2515 2516 static int nl802154_pre_doit(const struct genl_split_ops *ops, 2517 struct sk_buff *skb, 2518 struct genl_info *info) 2519 { 2520 struct cfg802154_registered_device *rdev; 2521 struct wpan_dev *wpan_dev; 2522 struct net_device *dev; 2523 bool rtnl = ops->internal_flags & NL802154_FLAG_NEED_RTNL; 2524 2525 if (rtnl) 2526 rtnl_lock(); 2527 2528 if (ops->internal_flags & NL802154_FLAG_NEED_WPAN_PHY) { 2529 rdev = cfg802154_get_dev_from_info(genl_info_net(info), info); 2530 if (IS_ERR(rdev)) { 2531 if (rtnl) 2532 rtnl_unlock(); 2533 return PTR_ERR(rdev); 2534 } 2535 info->user_ptr[0] = rdev; 2536 } else if (ops->internal_flags & NL802154_FLAG_NEED_NETDEV || 2537 ops->internal_flags & NL802154_FLAG_NEED_WPAN_DEV) { 2538 ASSERT_RTNL(); 2539 wpan_dev = __cfg802154_wpan_dev_from_attrs(genl_info_net(info), 2540 info->attrs); 2541 if (IS_ERR(wpan_dev)) { 2542 if (rtnl) 2543 rtnl_unlock(); 2544 return PTR_ERR(wpan_dev); 2545 } 2546 2547 dev = wpan_dev->netdev; 2548 rdev = wpan_phy_to_rdev(wpan_dev->wpan_phy); 2549 2550 if (ops->internal_flags & NL802154_FLAG_NEED_NETDEV) { 2551 if (!dev) { 2552 if (rtnl) 2553 rtnl_unlock(); 2554 return -EINVAL; 2555 } 2556 2557 info->user_ptr[1] = dev; 2558 } else { 2559 info->user_ptr[1] = wpan_dev; 2560 } 2561 2562 if (dev) { 2563 if (ops->internal_flags & NL802154_FLAG_CHECK_NETDEV_UP && 2564 !netif_running(dev)) { 2565 if (rtnl) 2566 rtnl_unlock(); 2567 return -ENETDOWN; 2568 } 2569 2570 dev_hold(dev); 2571 } 2572 2573 info->user_ptr[0] = rdev; 2574 } 2575 2576 return 0; 2577 } 2578 2579 static void nl802154_post_doit(const struct genl_split_ops *ops, 2580 struct sk_buff *skb, 2581 struct genl_info *info) 2582 { 2583 if (info->user_ptr[1]) { 2584 if (ops->internal_flags & NL802154_FLAG_NEED_WPAN_DEV) { 2585 struct wpan_dev *wpan_dev = info->user_ptr[1]; 2586 2587 dev_put(wpan_dev->netdev); 2588 } else { 2589 dev_put(info->user_ptr[1]); 2590 } 2591 } 2592 2593 if (ops->internal_flags & NL802154_FLAG_NEED_RTNL) 2594 rtnl_unlock(); 2595 } 2596 2597 static const struct genl_ops nl802154_ops[] = { 2598 { 2599 .cmd = NL802154_CMD_GET_WPAN_PHY, 2600 .validate = GENL_DONT_VALIDATE_STRICT | 2601 GENL_DONT_VALIDATE_DUMP_STRICT, 2602 .doit = nl802154_get_wpan_phy, 2603 .dumpit = nl802154_dump_wpan_phy, 2604 .done = nl802154_dump_wpan_phy_done, 2605 /* can be retrieved by unprivileged users */ 2606 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY | 2607 NL802154_FLAG_NEED_RTNL, 2608 }, 2609 { 2610 .cmd = NL802154_CMD_GET_INTERFACE, 2611 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2612 .doit = nl802154_get_interface, 2613 .dumpit = nl802154_dump_interface, 2614 /* can be retrieved by unprivileged users */ 2615 .internal_flags = NL802154_FLAG_NEED_WPAN_DEV | 2616 NL802154_FLAG_NEED_RTNL, 2617 }, 2618 { 2619 .cmd = NL802154_CMD_NEW_INTERFACE, 2620 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2621 .doit = nl802154_new_interface, 2622 .flags = GENL_ADMIN_PERM, 2623 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY | 2624 NL802154_FLAG_NEED_RTNL, 2625 }, 2626 { 2627 .cmd = NL802154_CMD_DEL_INTERFACE, 2628 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2629 .doit = nl802154_del_interface, 2630 .flags = GENL_ADMIN_PERM, 2631 .internal_flags = NL802154_FLAG_NEED_WPAN_DEV | 2632 NL802154_FLAG_NEED_RTNL, 2633 }, 2634 { 2635 .cmd = NL802154_CMD_SET_CHANNEL, 2636 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2637 .doit = nl802154_set_channel, 2638 .flags = GENL_ADMIN_PERM, 2639 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY | 2640 NL802154_FLAG_NEED_RTNL, 2641 }, 2642 { 2643 .cmd = NL802154_CMD_SET_CCA_MODE, 2644 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2645 .doit = nl802154_set_cca_mode, 2646 .flags = GENL_ADMIN_PERM, 2647 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY | 2648 NL802154_FLAG_NEED_RTNL, 2649 }, 2650 { 2651 .cmd = NL802154_CMD_SET_CCA_ED_LEVEL, 2652 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2653 .doit = nl802154_set_cca_ed_level, 2654 .flags = GENL_ADMIN_PERM, 2655 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY | 2656 NL802154_FLAG_NEED_RTNL, 2657 }, 2658 { 2659 .cmd = NL802154_CMD_SET_TX_POWER, 2660 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2661 .doit = nl802154_set_tx_power, 2662 .flags = GENL_ADMIN_PERM, 2663 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY | 2664 NL802154_FLAG_NEED_RTNL, 2665 }, 2666 { 2667 .cmd = NL802154_CMD_SET_WPAN_PHY_NETNS, 2668 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2669 .doit = nl802154_wpan_phy_netns, 2670 .flags = GENL_ADMIN_PERM, 2671 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY | 2672 NL802154_FLAG_NEED_RTNL, 2673 }, 2674 { 2675 .cmd = NL802154_CMD_SET_PAN_ID, 2676 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2677 .doit = nl802154_set_pan_id, 2678 .flags = GENL_ADMIN_PERM, 2679 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2680 NL802154_FLAG_NEED_RTNL, 2681 }, 2682 { 2683 .cmd = NL802154_CMD_SET_SHORT_ADDR, 2684 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2685 .doit = nl802154_set_short_addr, 2686 .flags = GENL_ADMIN_PERM, 2687 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2688 NL802154_FLAG_NEED_RTNL, 2689 }, 2690 { 2691 .cmd = NL802154_CMD_SET_BACKOFF_EXPONENT, 2692 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2693 .doit = nl802154_set_backoff_exponent, 2694 .flags = GENL_ADMIN_PERM, 2695 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2696 NL802154_FLAG_NEED_RTNL, 2697 }, 2698 { 2699 .cmd = NL802154_CMD_SET_MAX_CSMA_BACKOFFS, 2700 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2701 .doit = nl802154_set_max_csma_backoffs, 2702 .flags = GENL_ADMIN_PERM, 2703 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2704 NL802154_FLAG_NEED_RTNL, 2705 }, 2706 { 2707 .cmd = NL802154_CMD_SET_MAX_FRAME_RETRIES, 2708 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2709 .doit = nl802154_set_max_frame_retries, 2710 .flags = GENL_ADMIN_PERM, 2711 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2712 NL802154_FLAG_NEED_RTNL, 2713 }, 2714 { 2715 .cmd = NL802154_CMD_SET_LBT_MODE, 2716 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2717 .doit = nl802154_set_lbt_mode, 2718 .flags = GENL_ADMIN_PERM, 2719 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2720 NL802154_FLAG_NEED_RTNL, 2721 }, 2722 { 2723 .cmd = NL802154_CMD_SET_ACKREQ_DEFAULT, 2724 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2725 .doit = nl802154_set_ackreq_default, 2726 .flags = GENL_ADMIN_PERM, 2727 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2728 NL802154_FLAG_NEED_RTNL, 2729 }, 2730 { 2731 .cmd = NL802154_CMD_TRIGGER_SCAN, 2732 .doit = nl802154_trigger_scan, 2733 .flags = GENL_ADMIN_PERM, 2734 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2735 NL802154_FLAG_CHECK_NETDEV_UP | 2736 NL802154_FLAG_NEED_RTNL, 2737 }, 2738 { 2739 .cmd = NL802154_CMD_ABORT_SCAN, 2740 .doit = nl802154_abort_scan, 2741 .flags = GENL_ADMIN_PERM, 2742 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2743 NL802154_FLAG_CHECK_NETDEV_UP | 2744 NL802154_FLAG_NEED_RTNL, 2745 }, 2746 { 2747 .cmd = NL802154_CMD_SEND_BEACONS, 2748 .doit = nl802154_send_beacons, 2749 .flags = GENL_ADMIN_PERM, 2750 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2751 NL802154_FLAG_CHECK_NETDEV_UP | 2752 NL802154_FLAG_NEED_RTNL, 2753 }, 2754 { 2755 .cmd = NL802154_CMD_STOP_BEACONS, 2756 .doit = nl802154_stop_beacons, 2757 .flags = GENL_ADMIN_PERM, 2758 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2759 NL802154_FLAG_CHECK_NETDEV_UP | 2760 NL802154_FLAG_NEED_RTNL, 2761 }, 2762 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL 2763 { 2764 .cmd = NL802154_CMD_SET_SEC_PARAMS, 2765 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2766 .doit = nl802154_set_llsec_params, 2767 .flags = GENL_ADMIN_PERM, 2768 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2769 NL802154_FLAG_NEED_RTNL, 2770 }, 2771 { 2772 .cmd = NL802154_CMD_GET_SEC_KEY, 2773 .validate = GENL_DONT_VALIDATE_STRICT | 2774 GENL_DONT_VALIDATE_DUMP_STRICT, 2775 /* TODO .doit by matching key id? */ 2776 .dumpit = nl802154_dump_llsec_key, 2777 .flags = GENL_ADMIN_PERM, 2778 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2779 NL802154_FLAG_NEED_RTNL, 2780 }, 2781 { 2782 .cmd = NL802154_CMD_NEW_SEC_KEY, 2783 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2784 .doit = nl802154_add_llsec_key, 2785 .flags = GENL_ADMIN_PERM, 2786 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2787 NL802154_FLAG_NEED_RTNL, 2788 }, 2789 { 2790 .cmd = NL802154_CMD_DEL_SEC_KEY, 2791 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2792 .doit = nl802154_del_llsec_key, 2793 .flags = GENL_ADMIN_PERM, 2794 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2795 NL802154_FLAG_NEED_RTNL, 2796 }, 2797 /* TODO unique identifier must short+pan OR extended_addr */ 2798 { 2799 .cmd = NL802154_CMD_GET_SEC_DEV, 2800 .validate = GENL_DONT_VALIDATE_STRICT | 2801 GENL_DONT_VALIDATE_DUMP_STRICT, 2802 /* TODO .doit by matching extended_addr? */ 2803 .dumpit = nl802154_dump_llsec_dev, 2804 .flags = GENL_ADMIN_PERM, 2805 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2806 NL802154_FLAG_NEED_RTNL, 2807 }, 2808 { 2809 .cmd = NL802154_CMD_NEW_SEC_DEV, 2810 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2811 .doit = nl802154_add_llsec_dev, 2812 .flags = GENL_ADMIN_PERM, 2813 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2814 NL802154_FLAG_NEED_RTNL, 2815 }, 2816 { 2817 .cmd = NL802154_CMD_DEL_SEC_DEV, 2818 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2819 .doit = nl802154_del_llsec_dev, 2820 .flags = GENL_ADMIN_PERM, 2821 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2822 NL802154_FLAG_NEED_RTNL, 2823 }, 2824 /* TODO remove complete devkey, put it as nested? */ 2825 { 2826 .cmd = NL802154_CMD_GET_SEC_DEVKEY, 2827 .validate = GENL_DONT_VALIDATE_STRICT | 2828 GENL_DONT_VALIDATE_DUMP_STRICT, 2829 /* TODO doit by matching ??? */ 2830 .dumpit = nl802154_dump_llsec_devkey, 2831 .flags = GENL_ADMIN_PERM, 2832 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2833 NL802154_FLAG_NEED_RTNL, 2834 }, 2835 { 2836 .cmd = NL802154_CMD_NEW_SEC_DEVKEY, 2837 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2838 .doit = nl802154_add_llsec_devkey, 2839 .flags = GENL_ADMIN_PERM, 2840 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2841 NL802154_FLAG_NEED_RTNL, 2842 }, 2843 { 2844 .cmd = NL802154_CMD_DEL_SEC_DEVKEY, 2845 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2846 .doit = nl802154_del_llsec_devkey, 2847 .flags = GENL_ADMIN_PERM, 2848 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2849 NL802154_FLAG_NEED_RTNL, 2850 }, 2851 { 2852 .cmd = NL802154_CMD_GET_SEC_LEVEL, 2853 .validate = GENL_DONT_VALIDATE_STRICT | 2854 GENL_DONT_VALIDATE_DUMP_STRICT, 2855 /* TODO .doit by matching frame_type? */ 2856 .dumpit = nl802154_dump_llsec_seclevel, 2857 .flags = GENL_ADMIN_PERM, 2858 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2859 NL802154_FLAG_NEED_RTNL, 2860 }, 2861 { 2862 .cmd = NL802154_CMD_NEW_SEC_LEVEL, 2863 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2864 .doit = nl802154_add_llsec_seclevel, 2865 .flags = GENL_ADMIN_PERM, 2866 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2867 NL802154_FLAG_NEED_RTNL, 2868 }, 2869 { 2870 .cmd = NL802154_CMD_DEL_SEC_LEVEL, 2871 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2872 /* TODO match frame_type only? */ 2873 .doit = nl802154_del_llsec_seclevel, 2874 .flags = GENL_ADMIN_PERM, 2875 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2876 NL802154_FLAG_NEED_RTNL, 2877 }, 2878 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */ 2879 }; 2880 2881 static struct genl_family nl802154_fam __ro_after_init = { 2882 .name = NL802154_GENL_NAME, /* have users key off the name instead */ 2883 .hdrsize = 0, /* no private header */ 2884 .version = 1, /* no particular meaning now */ 2885 .maxattr = NL802154_ATTR_MAX, 2886 .policy = nl802154_policy, 2887 .netnsok = true, 2888 .pre_doit = nl802154_pre_doit, 2889 .post_doit = nl802154_post_doit, 2890 .module = THIS_MODULE, 2891 .ops = nl802154_ops, 2892 .n_ops = ARRAY_SIZE(nl802154_ops), 2893 .resv_start_op = NL802154_CMD_DEL_SEC_LEVEL + 1, 2894 .mcgrps = nl802154_mcgrps, 2895 .n_mcgrps = ARRAY_SIZE(nl802154_mcgrps), 2896 }; 2897 2898 /* initialisation/exit functions */ 2899 int __init nl802154_init(void) 2900 { 2901 return genl_register_family(&nl802154_fam); 2902 } 2903 2904 void nl802154_exit(void) 2905 { 2906 genl_unregister_family(&nl802154_fam); 2907 } 2908