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 }; 30 31 static const struct genl_multicast_group nl802154_mcgrps[] = { 32 [NL802154_MCGRP_CONFIG] = { .name = "config", }, 33 }; 34 35 /* returns ERR_PTR values */ 36 static struct wpan_dev * 37 __cfg802154_wpan_dev_from_attrs(struct net *netns, struct nlattr **attrs) 38 { 39 struct cfg802154_registered_device *rdev; 40 struct wpan_dev *result = NULL; 41 bool have_ifidx = attrs[NL802154_ATTR_IFINDEX]; 42 bool have_wpan_dev_id = attrs[NL802154_ATTR_WPAN_DEV]; 43 u64 wpan_dev_id; 44 int wpan_phy_idx = -1; 45 int ifidx = -1; 46 47 ASSERT_RTNL(); 48 49 if (!have_ifidx && !have_wpan_dev_id) 50 return ERR_PTR(-EINVAL); 51 52 if (have_ifidx) 53 ifidx = nla_get_u32(attrs[NL802154_ATTR_IFINDEX]); 54 if (have_wpan_dev_id) { 55 wpan_dev_id = nla_get_u64(attrs[NL802154_ATTR_WPAN_DEV]); 56 wpan_phy_idx = wpan_dev_id >> 32; 57 } 58 59 list_for_each_entry(rdev, &cfg802154_rdev_list, list) { 60 struct wpan_dev *wpan_dev; 61 62 if (wpan_phy_net(&rdev->wpan_phy) != netns) 63 continue; 64 65 if (have_wpan_dev_id && rdev->wpan_phy_idx != wpan_phy_idx) 66 continue; 67 68 list_for_each_entry(wpan_dev, &rdev->wpan_dev_list, list) { 69 if (have_ifidx && wpan_dev->netdev && 70 wpan_dev->netdev->ifindex == ifidx) { 71 result = wpan_dev; 72 break; 73 } 74 if (have_wpan_dev_id && 75 wpan_dev->identifier == (u32)wpan_dev_id) { 76 result = wpan_dev; 77 break; 78 } 79 } 80 81 if (result) 82 break; 83 } 84 85 if (result) 86 return result; 87 88 return ERR_PTR(-ENODEV); 89 } 90 91 static struct cfg802154_registered_device * 92 __cfg802154_rdev_from_attrs(struct net *netns, struct nlattr **attrs) 93 { 94 struct cfg802154_registered_device *rdev = NULL, *tmp; 95 struct net_device *netdev; 96 97 ASSERT_RTNL(); 98 99 if (!attrs[NL802154_ATTR_WPAN_PHY] && 100 !attrs[NL802154_ATTR_IFINDEX] && 101 !attrs[NL802154_ATTR_WPAN_DEV]) 102 return ERR_PTR(-EINVAL); 103 104 if (attrs[NL802154_ATTR_WPAN_PHY]) 105 rdev = cfg802154_rdev_by_wpan_phy_idx( 106 nla_get_u32(attrs[NL802154_ATTR_WPAN_PHY])); 107 108 if (attrs[NL802154_ATTR_WPAN_DEV]) { 109 u64 wpan_dev_id = nla_get_u64(attrs[NL802154_ATTR_WPAN_DEV]); 110 struct wpan_dev *wpan_dev; 111 bool found = false; 112 113 tmp = cfg802154_rdev_by_wpan_phy_idx(wpan_dev_id >> 32); 114 if (tmp) { 115 /* make sure wpan_dev exists */ 116 list_for_each_entry(wpan_dev, &tmp->wpan_dev_list, list) { 117 if (wpan_dev->identifier != (u32)wpan_dev_id) 118 continue; 119 found = true; 120 break; 121 } 122 123 if (!found) 124 tmp = NULL; 125 126 if (rdev && tmp != rdev) 127 return ERR_PTR(-EINVAL); 128 rdev = tmp; 129 } 130 } 131 132 if (attrs[NL802154_ATTR_IFINDEX]) { 133 int ifindex = nla_get_u32(attrs[NL802154_ATTR_IFINDEX]); 134 135 netdev = __dev_get_by_index(netns, ifindex); 136 if (netdev) { 137 if (netdev->ieee802154_ptr) 138 tmp = wpan_phy_to_rdev( 139 netdev->ieee802154_ptr->wpan_phy); 140 else 141 tmp = NULL; 142 143 /* not wireless device -- return error */ 144 if (!tmp) 145 return ERR_PTR(-EINVAL); 146 147 /* mismatch -- return error */ 148 if (rdev && tmp != rdev) 149 return ERR_PTR(-EINVAL); 150 151 rdev = tmp; 152 } 153 } 154 155 if (!rdev) 156 return ERR_PTR(-ENODEV); 157 158 if (netns != wpan_phy_net(&rdev->wpan_phy)) 159 return ERR_PTR(-ENODEV); 160 161 return rdev; 162 } 163 164 /* This function returns a pointer to the driver 165 * that the genl_info item that is passed refers to. 166 * 167 * The result of this can be a PTR_ERR and hence must 168 * be checked with IS_ERR() for errors. 169 */ 170 static struct cfg802154_registered_device * 171 cfg802154_get_dev_from_info(struct net *netns, struct genl_info *info) 172 { 173 return __cfg802154_rdev_from_attrs(netns, info->attrs); 174 } 175 176 /* policy for the attributes */ 177 static const struct nla_policy nl802154_policy[NL802154_ATTR_MAX+1] = { 178 [NL802154_ATTR_WPAN_PHY] = { .type = NLA_U32 }, 179 [NL802154_ATTR_WPAN_PHY_NAME] = { .type = NLA_NUL_STRING, 180 .len = 20-1 }, 181 182 [NL802154_ATTR_IFINDEX] = { .type = NLA_U32 }, 183 [NL802154_ATTR_IFTYPE] = { .type = NLA_U32 }, 184 [NL802154_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 }, 185 186 [NL802154_ATTR_WPAN_DEV] = { .type = NLA_U64 }, 187 188 [NL802154_ATTR_PAGE] = { .type = NLA_U8, }, 189 [NL802154_ATTR_CHANNEL] = { .type = NLA_U8, }, 190 191 [NL802154_ATTR_TX_POWER] = { .type = NLA_S32, }, 192 193 [NL802154_ATTR_CCA_MODE] = { .type = NLA_U32, }, 194 [NL802154_ATTR_CCA_OPT] = { .type = NLA_U32, }, 195 [NL802154_ATTR_CCA_ED_LEVEL] = { .type = NLA_S32, }, 196 197 [NL802154_ATTR_SUPPORTED_CHANNEL] = { .type = NLA_U32, }, 198 199 [NL802154_ATTR_PAN_ID] = { .type = NLA_U16, }, 200 [NL802154_ATTR_EXTENDED_ADDR] = { .type = NLA_U64 }, 201 [NL802154_ATTR_SHORT_ADDR] = { .type = NLA_U16, }, 202 203 [NL802154_ATTR_MIN_BE] = { .type = NLA_U8, }, 204 [NL802154_ATTR_MAX_BE] = { .type = NLA_U8, }, 205 [NL802154_ATTR_MAX_CSMA_BACKOFFS] = { .type = NLA_U8, }, 206 207 [NL802154_ATTR_MAX_FRAME_RETRIES] = { .type = NLA_S8, }, 208 209 [NL802154_ATTR_LBT_MODE] = { .type = NLA_U8, }, 210 211 [NL802154_ATTR_WPAN_PHY_CAPS] = { .type = NLA_NESTED }, 212 213 [NL802154_ATTR_SUPPORTED_COMMANDS] = { .type = NLA_NESTED }, 214 215 [NL802154_ATTR_ACKREQ_DEFAULT] = { .type = NLA_U8 }, 216 217 [NL802154_ATTR_PID] = { .type = NLA_U32 }, 218 [NL802154_ATTR_NETNS_FD] = { .type = NLA_U32 }, 219 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL 220 [NL802154_ATTR_SEC_ENABLED] = { .type = NLA_U8, }, 221 [NL802154_ATTR_SEC_OUT_LEVEL] = { .type = NLA_U32, }, 222 [NL802154_ATTR_SEC_OUT_KEY_ID] = { .type = NLA_NESTED, }, 223 [NL802154_ATTR_SEC_FRAME_COUNTER] = { .type = NLA_U32 }, 224 225 [NL802154_ATTR_SEC_LEVEL] = { .type = NLA_NESTED }, 226 [NL802154_ATTR_SEC_DEVICE] = { .type = NLA_NESTED }, 227 [NL802154_ATTR_SEC_DEVKEY] = { .type = NLA_NESTED }, 228 [NL802154_ATTR_SEC_KEY] = { .type = NLA_NESTED }, 229 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */ 230 }; 231 232 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL 233 static int 234 nl802154_prepare_wpan_dev_dump(struct sk_buff *skb, 235 struct netlink_callback *cb, 236 struct cfg802154_registered_device **rdev, 237 struct wpan_dev **wpan_dev) 238 { 239 int err; 240 241 rtnl_lock(); 242 243 if (!cb->args[0]) { 244 err = nlmsg_parse_deprecated(cb->nlh, 245 GENL_HDRLEN + nl802154_fam.hdrsize, 246 genl_family_attrbuf(&nl802154_fam), 247 nl802154_fam.maxattr, 248 nl802154_policy, NULL); 249 if (err) 250 goto out_unlock; 251 252 *wpan_dev = __cfg802154_wpan_dev_from_attrs(sock_net(skb->sk), 253 genl_family_attrbuf(&nl802154_fam)); 254 if (IS_ERR(*wpan_dev)) { 255 err = PTR_ERR(*wpan_dev); 256 goto out_unlock; 257 } 258 *rdev = wpan_phy_to_rdev((*wpan_dev)->wpan_phy); 259 /* 0 is the first index - add 1 to parse only once */ 260 cb->args[0] = (*rdev)->wpan_phy_idx + 1; 261 cb->args[1] = (*wpan_dev)->identifier; 262 } else { 263 /* subtract the 1 again here */ 264 struct wpan_phy *wpan_phy = wpan_phy_idx_to_wpan_phy(cb->args[0] - 1); 265 struct wpan_dev *tmp; 266 267 if (!wpan_phy) { 268 err = -ENODEV; 269 goto out_unlock; 270 } 271 *rdev = wpan_phy_to_rdev(wpan_phy); 272 *wpan_dev = NULL; 273 274 list_for_each_entry(tmp, &(*rdev)->wpan_dev_list, list) { 275 if (tmp->identifier == cb->args[1]) { 276 *wpan_dev = tmp; 277 break; 278 } 279 } 280 281 if (!*wpan_dev) { 282 err = -ENODEV; 283 goto out_unlock; 284 } 285 } 286 287 return 0; 288 out_unlock: 289 rtnl_unlock(); 290 return err; 291 } 292 293 static void 294 nl802154_finish_wpan_dev_dump(struct cfg802154_registered_device *rdev) 295 { 296 rtnl_unlock(); 297 } 298 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */ 299 300 /* message building helper */ 301 static inline void *nl802154hdr_put(struct sk_buff *skb, u32 portid, u32 seq, 302 int flags, u8 cmd) 303 { 304 /* since there is no private header just add the generic one */ 305 return genlmsg_put(skb, portid, seq, &nl802154_fam, flags, cmd); 306 } 307 308 static int 309 nl802154_put_flags(struct sk_buff *msg, int attr, u32 mask) 310 { 311 struct nlattr *nl_flags = nla_nest_start_noflag(msg, attr); 312 int i; 313 314 if (!nl_flags) 315 return -ENOBUFS; 316 317 i = 0; 318 while (mask) { 319 if ((mask & 1) && nla_put_flag(msg, i)) 320 return -ENOBUFS; 321 322 mask >>= 1; 323 i++; 324 } 325 326 nla_nest_end(msg, nl_flags); 327 return 0; 328 } 329 330 static int 331 nl802154_send_wpan_phy_channels(struct cfg802154_registered_device *rdev, 332 struct sk_buff *msg) 333 { 334 struct nlattr *nl_page; 335 unsigned long page; 336 337 nl_page = nla_nest_start_noflag(msg, NL802154_ATTR_CHANNELS_SUPPORTED); 338 if (!nl_page) 339 return -ENOBUFS; 340 341 for (page = 0; page <= IEEE802154_MAX_PAGE; page++) { 342 if (nla_put_u32(msg, NL802154_ATTR_SUPPORTED_CHANNEL, 343 rdev->wpan_phy.supported.channels[page])) 344 return -ENOBUFS; 345 } 346 nla_nest_end(msg, nl_page); 347 348 return 0; 349 } 350 351 static int 352 nl802154_put_capabilities(struct sk_buff *msg, 353 struct cfg802154_registered_device *rdev) 354 { 355 const struct wpan_phy_supported *caps = &rdev->wpan_phy.supported; 356 struct nlattr *nl_caps, *nl_channels; 357 int i; 358 359 nl_caps = nla_nest_start_noflag(msg, NL802154_ATTR_WPAN_PHY_CAPS); 360 if (!nl_caps) 361 return -ENOBUFS; 362 363 nl_channels = nla_nest_start_noflag(msg, NL802154_CAP_ATTR_CHANNELS); 364 if (!nl_channels) 365 return -ENOBUFS; 366 367 for (i = 0; i <= IEEE802154_MAX_PAGE; i++) { 368 if (caps->channels[i]) { 369 if (nl802154_put_flags(msg, i, caps->channels[i])) 370 return -ENOBUFS; 371 } 372 } 373 374 nla_nest_end(msg, nl_channels); 375 376 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL) { 377 struct nlattr *nl_ed_lvls; 378 379 nl_ed_lvls = nla_nest_start_noflag(msg, 380 NL802154_CAP_ATTR_CCA_ED_LEVELS); 381 if (!nl_ed_lvls) 382 return -ENOBUFS; 383 384 for (i = 0; i < caps->cca_ed_levels_size; i++) { 385 if (nla_put_s32(msg, i, caps->cca_ed_levels[i])) 386 return -ENOBUFS; 387 } 388 389 nla_nest_end(msg, nl_ed_lvls); 390 } 391 392 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER) { 393 struct nlattr *nl_tx_pwrs; 394 395 nl_tx_pwrs = nla_nest_start_noflag(msg, 396 NL802154_CAP_ATTR_TX_POWERS); 397 if (!nl_tx_pwrs) 398 return -ENOBUFS; 399 400 for (i = 0; i < caps->tx_powers_size; i++) { 401 if (nla_put_s32(msg, i, caps->tx_powers[i])) 402 return -ENOBUFS; 403 } 404 405 nla_nest_end(msg, nl_tx_pwrs); 406 } 407 408 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE) { 409 if (nl802154_put_flags(msg, NL802154_CAP_ATTR_CCA_MODES, 410 caps->cca_modes) || 411 nl802154_put_flags(msg, NL802154_CAP_ATTR_CCA_OPTS, 412 caps->cca_opts)) 413 return -ENOBUFS; 414 } 415 416 if (nla_put_u8(msg, NL802154_CAP_ATTR_MIN_MINBE, caps->min_minbe) || 417 nla_put_u8(msg, NL802154_CAP_ATTR_MAX_MINBE, caps->max_minbe) || 418 nla_put_u8(msg, NL802154_CAP_ATTR_MIN_MAXBE, caps->min_maxbe) || 419 nla_put_u8(msg, NL802154_CAP_ATTR_MAX_MAXBE, caps->max_maxbe) || 420 nla_put_u8(msg, NL802154_CAP_ATTR_MIN_CSMA_BACKOFFS, 421 caps->min_csma_backoffs) || 422 nla_put_u8(msg, NL802154_CAP_ATTR_MAX_CSMA_BACKOFFS, 423 caps->max_csma_backoffs) || 424 nla_put_s8(msg, NL802154_CAP_ATTR_MIN_FRAME_RETRIES, 425 caps->min_frame_retries) || 426 nla_put_s8(msg, NL802154_CAP_ATTR_MAX_FRAME_RETRIES, 427 caps->max_frame_retries) || 428 nl802154_put_flags(msg, NL802154_CAP_ATTR_IFTYPES, 429 caps->iftypes) || 430 nla_put_u32(msg, NL802154_CAP_ATTR_LBT, caps->lbt)) 431 return -ENOBUFS; 432 433 nla_nest_end(msg, nl_caps); 434 435 return 0; 436 } 437 438 static int nl802154_send_wpan_phy(struct cfg802154_registered_device *rdev, 439 enum nl802154_commands cmd, 440 struct sk_buff *msg, u32 portid, u32 seq, 441 int flags) 442 { 443 struct nlattr *nl_cmds; 444 void *hdr; 445 int i; 446 447 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd); 448 if (!hdr) 449 return -ENOBUFS; 450 451 if (nla_put_u32(msg, NL802154_ATTR_WPAN_PHY, rdev->wpan_phy_idx) || 452 nla_put_string(msg, NL802154_ATTR_WPAN_PHY_NAME, 453 wpan_phy_name(&rdev->wpan_phy)) || 454 nla_put_u32(msg, NL802154_ATTR_GENERATION, 455 cfg802154_rdev_list_generation)) 456 goto nla_put_failure; 457 458 if (cmd != NL802154_CMD_NEW_WPAN_PHY) 459 goto finish; 460 461 /* DUMP PHY PIB */ 462 463 /* current channel settings */ 464 if (nla_put_u8(msg, NL802154_ATTR_PAGE, 465 rdev->wpan_phy.current_page) || 466 nla_put_u8(msg, NL802154_ATTR_CHANNEL, 467 rdev->wpan_phy.current_channel)) 468 goto nla_put_failure; 469 470 /* TODO remove this behaviour, we still keep support it for a while 471 * so users can change the behaviour to the new one. 472 */ 473 if (nl802154_send_wpan_phy_channels(rdev, msg)) 474 goto nla_put_failure; 475 476 /* cca mode */ 477 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE) { 478 if (nla_put_u32(msg, NL802154_ATTR_CCA_MODE, 479 rdev->wpan_phy.cca.mode)) 480 goto nla_put_failure; 481 482 if (rdev->wpan_phy.cca.mode == NL802154_CCA_ENERGY_CARRIER) { 483 if (nla_put_u32(msg, NL802154_ATTR_CCA_OPT, 484 rdev->wpan_phy.cca.opt)) 485 goto nla_put_failure; 486 } 487 } 488 489 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER) { 490 if (nla_put_s32(msg, NL802154_ATTR_TX_POWER, 491 rdev->wpan_phy.transmit_power)) 492 goto nla_put_failure; 493 } 494 495 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL) { 496 if (nla_put_s32(msg, NL802154_ATTR_CCA_ED_LEVEL, 497 rdev->wpan_phy.cca_ed_level)) 498 goto nla_put_failure; 499 } 500 501 if (nl802154_put_capabilities(msg, rdev)) 502 goto nla_put_failure; 503 504 nl_cmds = nla_nest_start_noflag(msg, NL802154_ATTR_SUPPORTED_COMMANDS); 505 if (!nl_cmds) 506 goto nla_put_failure; 507 508 i = 0; 509 #define CMD(op, n) \ 510 do { \ 511 if (rdev->ops->op) { \ 512 i++; \ 513 if (nla_put_u32(msg, i, NL802154_CMD_ ## n)) \ 514 goto nla_put_failure; \ 515 } \ 516 } while (0) 517 518 CMD(add_virtual_intf, NEW_INTERFACE); 519 CMD(del_virtual_intf, DEL_INTERFACE); 520 CMD(set_channel, SET_CHANNEL); 521 CMD(set_pan_id, SET_PAN_ID); 522 CMD(set_short_addr, SET_SHORT_ADDR); 523 CMD(set_backoff_exponent, SET_BACKOFF_EXPONENT); 524 CMD(set_max_csma_backoffs, SET_MAX_CSMA_BACKOFFS); 525 CMD(set_max_frame_retries, SET_MAX_FRAME_RETRIES); 526 CMD(set_lbt_mode, SET_LBT_MODE); 527 CMD(set_ackreq_default, SET_ACKREQ_DEFAULT); 528 529 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER) 530 CMD(set_tx_power, SET_TX_POWER); 531 532 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL) 533 CMD(set_cca_ed_level, SET_CCA_ED_LEVEL); 534 535 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE) 536 CMD(set_cca_mode, SET_CCA_MODE); 537 538 #undef CMD 539 nla_nest_end(msg, nl_cmds); 540 541 finish: 542 genlmsg_end(msg, hdr); 543 return 0; 544 545 nla_put_failure: 546 genlmsg_cancel(msg, hdr); 547 return -EMSGSIZE; 548 } 549 550 struct nl802154_dump_wpan_phy_state { 551 s64 filter_wpan_phy; 552 long start; 553 554 }; 555 556 static int nl802154_dump_wpan_phy_parse(struct sk_buff *skb, 557 struct netlink_callback *cb, 558 struct nl802154_dump_wpan_phy_state *state) 559 { 560 struct nlattr **tb = genl_family_attrbuf(&nl802154_fam); 561 int ret = nlmsg_parse_deprecated(cb->nlh, 562 GENL_HDRLEN + nl802154_fam.hdrsize, 563 tb, nl802154_fam.maxattr, 564 nl802154_policy, NULL); 565 566 /* TODO check if we can handle error here, 567 * we have no backward compatibility 568 */ 569 if (ret) 570 return 0; 571 572 if (tb[NL802154_ATTR_WPAN_PHY]) 573 state->filter_wpan_phy = nla_get_u32(tb[NL802154_ATTR_WPAN_PHY]); 574 if (tb[NL802154_ATTR_WPAN_DEV]) 575 state->filter_wpan_phy = nla_get_u64(tb[NL802154_ATTR_WPAN_DEV]) >> 32; 576 if (tb[NL802154_ATTR_IFINDEX]) { 577 struct net_device *netdev; 578 struct cfg802154_registered_device *rdev; 579 int ifidx = nla_get_u32(tb[NL802154_ATTR_IFINDEX]); 580 581 netdev = __dev_get_by_index(&init_net, ifidx); 582 if (!netdev) 583 return -ENODEV; 584 if (netdev->ieee802154_ptr) { 585 rdev = wpan_phy_to_rdev( 586 netdev->ieee802154_ptr->wpan_phy); 587 state->filter_wpan_phy = rdev->wpan_phy_idx; 588 } 589 } 590 591 return 0; 592 } 593 594 static int 595 nl802154_dump_wpan_phy(struct sk_buff *skb, struct netlink_callback *cb) 596 { 597 int idx = 0, ret; 598 struct nl802154_dump_wpan_phy_state *state = (void *)cb->args[0]; 599 struct cfg802154_registered_device *rdev; 600 601 rtnl_lock(); 602 if (!state) { 603 state = kzalloc(sizeof(*state), GFP_KERNEL); 604 if (!state) { 605 rtnl_unlock(); 606 return -ENOMEM; 607 } 608 state->filter_wpan_phy = -1; 609 ret = nl802154_dump_wpan_phy_parse(skb, cb, state); 610 if (ret) { 611 kfree(state); 612 rtnl_unlock(); 613 return ret; 614 } 615 cb->args[0] = (long)state; 616 } 617 618 list_for_each_entry(rdev, &cfg802154_rdev_list, list) { 619 if (!net_eq(wpan_phy_net(&rdev->wpan_phy), sock_net(skb->sk))) 620 continue; 621 if (++idx <= state->start) 622 continue; 623 if (state->filter_wpan_phy != -1 && 624 state->filter_wpan_phy != rdev->wpan_phy_idx) 625 continue; 626 /* attempt to fit multiple wpan_phy data chunks into the skb */ 627 ret = nl802154_send_wpan_phy(rdev, 628 NL802154_CMD_NEW_WPAN_PHY, 629 skb, 630 NETLINK_CB(cb->skb).portid, 631 cb->nlh->nlmsg_seq, NLM_F_MULTI); 632 if (ret < 0) { 633 if ((ret == -ENOBUFS || ret == -EMSGSIZE) && 634 !skb->len && cb->min_dump_alloc < 4096) { 635 cb->min_dump_alloc = 4096; 636 rtnl_unlock(); 637 return 1; 638 } 639 idx--; 640 break; 641 } 642 break; 643 } 644 rtnl_unlock(); 645 646 state->start = idx; 647 648 return skb->len; 649 } 650 651 static int nl802154_dump_wpan_phy_done(struct netlink_callback *cb) 652 { 653 kfree((void *)cb->args[0]); 654 return 0; 655 } 656 657 static int nl802154_get_wpan_phy(struct sk_buff *skb, struct genl_info *info) 658 { 659 struct sk_buff *msg; 660 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 661 662 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); 663 if (!msg) 664 return -ENOMEM; 665 666 if (nl802154_send_wpan_phy(rdev, NL802154_CMD_NEW_WPAN_PHY, msg, 667 info->snd_portid, info->snd_seq, 0) < 0) { 668 nlmsg_free(msg); 669 return -ENOBUFS; 670 } 671 672 return genlmsg_reply(msg, info); 673 } 674 675 static inline u64 wpan_dev_id(struct wpan_dev *wpan_dev) 676 { 677 return (u64)wpan_dev->identifier | 678 ((u64)wpan_phy_to_rdev(wpan_dev->wpan_phy)->wpan_phy_idx << 32); 679 } 680 681 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL 682 #include <net/ieee802154_netdev.h> 683 684 static int 685 ieee802154_llsec_send_key_id(struct sk_buff *msg, 686 const struct ieee802154_llsec_key_id *desc) 687 { 688 struct nlattr *nl_dev_addr; 689 690 if (nla_put_u32(msg, NL802154_KEY_ID_ATTR_MODE, desc->mode)) 691 return -ENOBUFS; 692 693 switch (desc->mode) { 694 case NL802154_KEY_ID_MODE_IMPLICIT: 695 nl_dev_addr = nla_nest_start_noflag(msg, 696 NL802154_KEY_ID_ATTR_IMPLICIT); 697 if (!nl_dev_addr) 698 return -ENOBUFS; 699 700 if (nla_put_le16(msg, NL802154_DEV_ADDR_ATTR_PAN_ID, 701 desc->device_addr.pan_id) || 702 nla_put_u32(msg, NL802154_DEV_ADDR_ATTR_MODE, 703 desc->device_addr.mode)) 704 return -ENOBUFS; 705 706 switch (desc->device_addr.mode) { 707 case NL802154_DEV_ADDR_SHORT: 708 if (nla_put_le16(msg, NL802154_DEV_ADDR_ATTR_SHORT, 709 desc->device_addr.short_addr)) 710 return -ENOBUFS; 711 break; 712 case NL802154_DEV_ADDR_EXTENDED: 713 if (nla_put_le64(msg, NL802154_DEV_ADDR_ATTR_EXTENDED, 714 desc->device_addr.extended_addr, 715 NL802154_DEV_ADDR_ATTR_PAD)) 716 return -ENOBUFS; 717 break; 718 default: 719 /* userspace should handle unknown */ 720 break; 721 } 722 723 nla_nest_end(msg, nl_dev_addr); 724 break; 725 case NL802154_KEY_ID_MODE_INDEX: 726 break; 727 case NL802154_KEY_ID_MODE_INDEX_SHORT: 728 /* TODO renmae short_source? */ 729 if (nla_put_le32(msg, NL802154_KEY_ID_ATTR_SOURCE_SHORT, 730 desc->short_source)) 731 return -ENOBUFS; 732 break; 733 case NL802154_KEY_ID_MODE_INDEX_EXTENDED: 734 if (nla_put_le64(msg, NL802154_KEY_ID_ATTR_SOURCE_EXTENDED, 735 desc->extended_source, 736 NL802154_KEY_ID_ATTR_PAD)) 737 return -ENOBUFS; 738 break; 739 default: 740 /* userspace should handle unknown */ 741 break; 742 } 743 744 /* TODO key_id to key_idx ? Check naming */ 745 if (desc->mode != NL802154_KEY_ID_MODE_IMPLICIT) { 746 if (nla_put_u8(msg, NL802154_KEY_ID_ATTR_INDEX, desc->id)) 747 return -ENOBUFS; 748 } 749 750 return 0; 751 } 752 753 static int nl802154_get_llsec_params(struct sk_buff *msg, 754 struct cfg802154_registered_device *rdev, 755 struct wpan_dev *wpan_dev) 756 { 757 struct nlattr *nl_key_id; 758 struct ieee802154_llsec_params params; 759 int ret; 760 761 ret = rdev_get_llsec_params(rdev, wpan_dev, ¶ms); 762 if (ret < 0) 763 return ret; 764 765 if (nla_put_u8(msg, NL802154_ATTR_SEC_ENABLED, params.enabled) || 766 nla_put_u32(msg, NL802154_ATTR_SEC_OUT_LEVEL, params.out_level) || 767 nla_put_be32(msg, NL802154_ATTR_SEC_FRAME_COUNTER, 768 params.frame_counter)) 769 return -ENOBUFS; 770 771 nl_key_id = nla_nest_start_noflag(msg, NL802154_ATTR_SEC_OUT_KEY_ID); 772 if (!nl_key_id) 773 return -ENOBUFS; 774 775 ret = ieee802154_llsec_send_key_id(msg, ¶ms.out_key); 776 if (ret < 0) 777 return ret; 778 779 nla_nest_end(msg, nl_key_id); 780 781 return 0; 782 } 783 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */ 784 785 static int 786 nl802154_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags, 787 struct cfg802154_registered_device *rdev, 788 struct wpan_dev *wpan_dev) 789 { 790 struct net_device *dev = wpan_dev->netdev; 791 void *hdr; 792 793 hdr = nl802154hdr_put(msg, portid, seq, flags, 794 NL802154_CMD_NEW_INTERFACE); 795 if (!hdr) 796 return -1; 797 798 if (dev && 799 (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex) || 800 nla_put_string(msg, NL802154_ATTR_IFNAME, dev->name))) 801 goto nla_put_failure; 802 803 if (nla_put_u32(msg, NL802154_ATTR_WPAN_PHY, rdev->wpan_phy_idx) || 804 nla_put_u32(msg, NL802154_ATTR_IFTYPE, wpan_dev->iftype) || 805 nla_put_u64_64bit(msg, NL802154_ATTR_WPAN_DEV, 806 wpan_dev_id(wpan_dev), NL802154_ATTR_PAD) || 807 nla_put_u32(msg, NL802154_ATTR_GENERATION, 808 rdev->devlist_generation ^ 809 (cfg802154_rdev_list_generation << 2))) 810 goto nla_put_failure; 811 812 /* address settings */ 813 if (nla_put_le64(msg, NL802154_ATTR_EXTENDED_ADDR, 814 wpan_dev->extended_addr, 815 NL802154_ATTR_PAD) || 816 nla_put_le16(msg, NL802154_ATTR_SHORT_ADDR, 817 wpan_dev->short_addr) || 818 nla_put_le16(msg, NL802154_ATTR_PAN_ID, wpan_dev->pan_id)) 819 goto nla_put_failure; 820 821 /* ARET handling */ 822 if (nla_put_s8(msg, NL802154_ATTR_MAX_FRAME_RETRIES, 823 wpan_dev->frame_retries) || 824 nla_put_u8(msg, NL802154_ATTR_MAX_BE, wpan_dev->max_be) || 825 nla_put_u8(msg, NL802154_ATTR_MAX_CSMA_BACKOFFS, 826 wpan_dev->csma_retries) || 827 nla_put_u8(msg, NL802154_ATTR_MIN_BE, wpan_dev->min_be)) 828 goto nla_put_failure; 829 830 /* listen before transmit */ 831 if (nla_put_u8(msg, NL802154_ATTR_LBT_MODE, wpan_dev->lbt)) 832 goto nla_put_failure; 833 834 /* ackreq default behaviour */ 835 if (nla_put_u8(msg, NL802154_ATTR_ACKREQ_DEFAULT, wpan_dev->ackreq)) 836 goto nla_put_failure; 837 838 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL 839 if (nl802154_get_llsec_params(msg, rdev, wpan_dev) < 0) 840 goto nla_put_failure; 841 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */ 842 843 genlmsg_end(msg, hdr); 844 return 0; 845 846 nla_put_failure: 847 genlmsg_cancel(msg, hdr); 848 return -EMSGSIZE; 849 } 850 851 static int 852 nl802154_dump_interface(struct sk_buff *skb, struct netlink_callback *cb) 853 { 854 int wp_idx = 0; 855 int if_idx = 0; 856 int wp_start = cb->args[0]; 857 int if_start = cb->args[1]; 858 struct cfg802154_registered_device *rdev; 859 struct wpan_dev *wpan_dev; 860 861 rtnl_lock(); 862 list_for_each_entry(rdev, &cfg802154_rdev_list, list) { 863 if (!net_eq(wpan_phy_net(&rdev->wpan_phy), sock_net(skb->sk))) 864 continue; 865 if (wp_idx < wp_start) { 866 wp_idx++; 867 continue; 868 } 869 if_idx = 0; 870 871 list_for_each_entry(wpan_dev, &rdev->wpan_dev_list, list) { 872 if (if_idx < if_start) { 873 if_idx++; 874 continue; 875 } 876 if (nl802154_send_iface(skb, NETLINK_CB(cb->skb).portid, 877 cb->nlh->nlmsg_seq, NLM_F_MULTI, 878 rdev, wpan_dev) < 0) { 879 goto out; 880 } 881 if_idx++; 882 } 883 884 wp_idx++; 885 } 886 out: 887 rtnl_unlock(); 888 889 cb->args[0] = wp_idx; 890 cb->args[1] = if_idx; 891 892 return skb->len; 893 } 894 895 static int nl802154_get_interface(struct sk_buff *skb, struct genl_info *info) 896 { 897 struct sk_buff *msg; 898 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 899 struct wpan_dev *wdev = info->user_ptr[1]; 900 901 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); 902 if (!msg) 903 return -ENOMEM; 904 905 if (nl802154_send_iface(msg, info->snd_portid, info->snd_seq, 0, 906 rdev, wdev) < 0) { 907 nlmsg_free(msg); 908 return -ENOBUFS; 909 } 910 911 return genlmsg_reply(msg, info); 912 } 913 914 static int nl802154_new_interface(struct sk_buff *skb, struct genl_info *info) 915 { 916 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 917 enum nl802154_iftype type = NL802154_IFTYPE_UNSPEC; 918 __le64 extended_addr = cpu_to_le64(0x0000000000000000ULL); 919 920 /* TODO avoid failing a new interface 921 * creation due to pending removal? 922 */ 923 924 if (!info->attrs[NL802154_ATTR_IFNAME]) 925 return -EINVAL; 926 927 if (info->attrs[NL802154_ATTR_IFTYPE]) { 928 type = nla_get_u32(info->attrs[NL802154_ATTR_IFTYPE]); 929 if (type > NL802154_IFTYPE_MAX || 930 !(rdev->wpan_phy.supported.iftypes & BIT(type))) 931 return -EINVAL; 932 } 933 934 if (info->attrs[NL802154_ATTR_EXTENDED_ADDR]) 935 extended_addr = nla_get_le64(info->attrs[NL802154_ATTR_EXTENDED_ADDR]); 936 937 if (!rdev->ops->add_virtual_intf) 938 return -EOPNOTSUPP; 939 940 return rdev_add_virtual_intf(rdev, 941 nla_data(info->attrs[NL802154_ATTR_IFNAME]), 942 NET_NAME_USER, type, extended_addr); 943 } 944 945 static int nl802154_del_interface(struct sk_buff *skb, struct genl_info *info) 946 { 947 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 948 struct wpan_dev *wpan_dev = info->user_ptr[1]; 949 950 if (!rdev->ops->del_virtual_intf) 951 return -EOPNOTSUPP; 952 953 /* If we remove a wpan device without a netdev then clear 954 * user_ptr[1] so that nl802154_post_doit won't dereference it 955 * to check if it needs to do dev_put(). Otherwise it crashes 956 * since the wpan_dev has been freed, unlike with a netdev where 957 * we need the dev_put() for the netdev to really be freed. 958 */ 959 if (!wpan_dev->netdev) 960 info->user_ptr[1] = NULL; 961 962 return rdev_del_virtual_intf(rdev, wpan_dev); 963 } 964 965 static int nl802154_set_channel(struct sk_buff *skb, struct genl_info *info) 966 { 967 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 968 u8 channel, page; 969 970 if (!info->attrs[NL802154_ATTR_PAGE] || 971 !info->attrs[NL802154_ATTR_CHANNEL]) 972 return -EINVAL; 973 974 page = nla_get_u8(info->attrs[NL802154_ATTR_PAGE]); 975 channel = nla_get_u8(info->attrs[NL802154_ATTR_CHANNEL]); 976 977 /* check 802.15.4 constraints */ 978 if (page > IEEE802154_MAX_PAGE || channel > IEEE802154_MAX_CHANNEL || 979 !(rdev->wpan_phy.supported.channels[page] & BIT(channel))) 980 return -EINVAL; 981 982 return rdev_set_channel(rdev, page, channel); 983 } 984 985 static int nl802154_set_cca_mode(struct sk_buff *skb, struct genl_info *info) 986 { 987 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 988 struct wpan_phy_cca cca; 989 990 if (!(rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE)) 991 return -EOPNOTSUPP; 992 993 if (!info->attrs[NL802154_ATTR_CCA_MODE]) 994 return -EINVAL; 995 996 cca.mode = nla_get_u32(info->attrs[NL802154_ATTR_CCA_MODE]); 997 /* checking 802.15.4 constraints */ 998 if (cca.mode < NL802154_CCA_ENERGY || 999 cca.mode > NL802154_CCA_ATTR_MAX || 1000 !(rdev->wpan_phy.supported.cca_modes & BIT(cca.mode))) 1001 return -EINVAL; 1002 1003 if (cca.mode == NL802154_CCA_ENERGY_CARRIER) { 1004 if (!info->attrs[NL802154_ATTR_CCA_OPT]) 1005 return -EINVAL; 1006 1007 cca.opt = nla_get_u32(info->attrs[NL802154_ATTR_CCA_OPT]); 1008 if (cca.opt > NL802154_CCA_OPT_ATTR_MAX || 1009 !(rdev->wpan_phy.supported.cca_opts & BIT(cca.opt))) 1010 return -EINVAL; 1011 } 1012 1013 return rdev_set_cca_mode(rdev, &cca); 1014 } 1015 1016 static int nl802154_set_cca_ed_level(struct sk_buff *skb, struct genl_info *info) 1017 { 1018 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1019 s32 ed_level; 1020 int i; 1021 1022 if (!(rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL)) 1023 return -EOPNOTSUPP; 1024 1025 if (!info->attrs[NL802154_ATTR_CCA_ED_LEVEL]) 1026 return -EINVAL; 1027 1028 ed_level = nla_get_s32(info->attrs[NL802154_ATTR_CCA_ED_LEVEL]); 1029 1030 for (i = 0; i < rdev->wpan_phy.supported.cca_ed_levels_size; i++) { 1031 if (ed_level == rdev->wpan_phy.supported.cca_ed_levels[i]) 1032 return rdev_set_cca_ed_level(rdev, ed_level); 1033 } 1034 1035 return -EINVAL; 1036 } 1037 1038 static int nl802154_set_tx_power(struct sk_buff *skb, struct genl_info *info) 1039 { 1040 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1041 s32 power; 1042 int i; 1043 1044 if (!(rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER)) 1045 return -EOPNOTSUPP; 1046 1047 if (!info->attrs[NL802154_ATTR_TX_POWER]) 1048 return -EINVAL; 1049 1050 power = nla_get_s32(info->attrs[NL802154_ATTR_TX_POWER]); 1051 1052 for (i = 0; i < rdev->wpan_phy.supported.tx_powers_size; i++) { 1053 if (power == rdev->wpan_phy.supported.tx_powers[i]) 1054 return rdev_set_tx_power(rdev, power); 1055 } 1056 1057 return -EINVAL; 1058 } 1059 1060 static int nl802154_set_pan_id(struct sk_buff *skb, struct genl_info *info) 1061 { 1062 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1063 struct net_device *dev = info->user_ptr[1]; 1064 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1065 __le16 pan_id; 1066 1067 /* conflict here while tx/rx calls */ 1068 if (netif_running(dev)) 1069 return -EBUSY; 1070 1071 if (wpan_dev->lowpan_dev) { 1072 if (netif_running(wpan_dev->lowpan_dev)) 1073 return -EBUSY; 1074 } 1075 1076 /* don't change address fields on monitor */ 1077 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR || 1078 !info->attrs[NL802154_ATTR_PAN_ID]) 1079 return -EINVAL; 1080 1081 pan_id = nla_get_le16(info->attrs[NL802154_ATTR_PAN_ID]); 1082 1083 /* TODO 1084 * I am not sure about to check here on broadcast pan_id. 1085 * Broadcast is a valid setting, comment from 802.15.4: 1086 * If this value is 0xffff, the device is not associated. 1087 * 1088 * This could useful to simple deassociate an device. 1089 */ 1090 if (pan_id == cpu_to_le16(IEEE802154_PAN_ID_BROADCAST)) 1091 return -EINVAL; 1092 1093 return rdev_set_pan_id(rdev, wpan_dev, pan_id); 1094 } 1095 1096 static int nl802154_set_short_addr(struct sk_buff *skb, struct genl_info *info) 1097 { 1098 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1099 struct net_device *dev = info->user_ptr[1]; 1100 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1101 __le16 short_addr; 1102 1103 /* conflict here while tx/rx calls */ 1104 if (netif_running(dev)) 1105 return -EBUSY; 1106 1107 if (wpan_dev->lowpan_dev) { 1108 if (netif_running(wpan_dev->lowpan_dev)) 1109 return -EBUSY; 1110 } 1111 1112 /* don't change address fields on monitor */ 1113 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR || 1114 !info->attrs[NL802154_ATTR_SHORT_ADDR]) 1115 return -EINVAL; 1116 1117 short_addr = nla_get_le16(info->attrs[NL802154_ATTR_SHORT_ADDR]); 1118 1119 /* TODO 1120 * I am not sure about to check here on broadcast short_addr. 1121 * Broadcast is a valid setting, comment from 802.15.4: 1122 * A value of 0xfffe indicates that the device has 1123 * associated but has not been allocated an address. A 1124 * value of 0xffff indicates that the device does not 1125 * have a short address. 1126 * 1127 * I think we should allow to set these settings but 1128 * don't allow to allow socket communication with it. 1129 */ 1130 if (short_addr == cpu_to_le16(IEEE802154_ADDR_SHORT_UNSPEC) || 1131 short_addr == cpu_to_le16(IEEE802154_ADDR_SHORT_BROADCAST)) 1132 return -EINVAL; 1133 1134 return rdev_set_short_addr(rdev, wpan_dev, short_addr); 1135 } 1136 1137 static int 1138 nl802154_set_backoff_exponent(struct sk_buff *skb, struct genl_info *info) 1139 { 1140 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1141 struct net_device *dev = info->user_ptr[1]; 1142 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1143 u8 min_be, max_be; 1144 1145 /* should be set on netif open inside phy settings */ 1146 if (netif_running(dev)) 1147 return -EBUSY; 1148 1149 if (!info->attrs[NL802154_ATTR_MIN_BE] || 1150 !info->attrs[NL802154_ATTR_MAX_BE]) 1151 return -EINVAL; 1152 1153 min_be = nla_get_u8(info->attrs[NL802154_ATTR_MIN_BE]); 1154 max_be = nla_get_u8(info->attrs[NL802154_ATTR_MAX_BE]); 1155 1156 /* check 802.15.4 constraints */ 1157 if (min_be < rdev->wpan_phy.supported.min_minbe || 1158 min_be > rdev->wpan_phy.supported.max_minbe || 1159 max_be < rdev->wpan_phy.supported.min_maxbe || 1160 max_be > rdev->wpan_phy.supported.max_maxbe || 1161 min_be > max_be) 1162 return -EINVAL; 1163 1164 return rdev_set_backoff_exponent(rdev, wpan_dev, min_be, max_be); 1165 } 1166 1167 static int 1168 nl802154_set_max_csma_backoffs(struct sk_buff *skb, struct genl_info *info) 1169 { 1170 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1171 struct net_device *dev = info->user_ptr[1]; 1172 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1173 u8 max_csma_backoffs; 1174 1175 /* conflict here while other running iface settings */ 1176 if (netif_running(dev)) 1177 return -EBUSY; 1178 1179 if (!info->attrs[NL802154_ATTR_MAX_CSMA_BACKOFFS]) 1180 return -EINVAL; 1181 1182 max_csma_backoffs = nla_get_u8( 1183 info->attrs[NL802154_ATTR_MAX_CSMA_BACKOFFS]); 1184 1185 /* check 802.15.4 constraints */ 1186 if (max_csma_backoffs < rdev->wpan_phy.supported.min_csma_backoffs || 1187 max_csma_backoffs > rdev->wpan_phy.supported.max_csma_backoffs) 1188 return -EINVAL; 1189 1190 return rdev_set_max_csma_backoffs(rdev, wpan_dev, max_csma_backoffs); 1191 } 1192 1193 static int 1194 nl802154_set_max_frame_retries(struct sk_buff *skb, struct genl_info *info) 1195 { 1196 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1197 struct net_device *dev = info->user_ptr[1]; 1198 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1199 s8 max_frame_retries; 1200 1201 if (netif_running(dev)) 1202 return -EBUSY; 1203 1204 if (!info->attrs[NL802154_ATTR_MAX_FRAME_RETRIES]) 1205 return -EINVAL; 1206 1207 max_frame_retries = nla_get_s8( 1208 info->attrs[NL802154_ATTR_MAX_FRAME_RETRIES]); 1209 1210 /* check 802.15.4 constraints */ 1211 if (max_frame_retries < rdev->wpan_phy.supported.min_frame_retries || 1212 max_frame_retries > rdev->wpan_phy.supported.max_frame_retries) 1213 return -EINVAL; 1214 1215 return rdev_set_max_frame_retries(rdev, wpan_dev, max_frame_retries); 1216 } 1217 1218 static int nl802154_set_lbt_mode(struct sk_buff *skb, struct genl_info *info) 1219 { 1220 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1221 struct net_device *dev = info->user_ptr[1]; 1222 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1223 int mode; 1224 1225 if (netif_running(dev)) 1226 return -EBUSY; 1227 1228 if (!info->attrs[NL802154_ATTR_LBT_MODE]) 1229 return -EINVAL; 1230 1231 mode = nla_get_u8(info->attrs[NL802154_ATTR_LBT_MODE]); 1232 1233 if (mode != 0 && mode != 1) 1234 return -EINVAL; 1235 1236 if (!wpan_phy_supported_bool(mode, rdev->wpan_phy.supported.lbt)) 1237 return -EINVAL; 1238 1239 return rdev_set_lbt_mode(rdev, wpan_dev, mode); 1240 } 1241 1242 static int 1243 nl802154_set_ackreq_default(struct sk_buff *skb, struct genl_info *info) 1244 { 1245 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1246 struct net_device *dev = info->user_ptr[1]; 1247 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1248 int ackreq; 1249 1250 if (netif_running(dev)) 1251 return -EBUSY; 1252 1253 if (!info->attrs[NL802154_ATTR_ACKREQ_DEFAULT]) 1254 return -EINVAL; 1255 1256 ackreq = nla_get_u8(info->attrs[NL802154_ATTR_ACKREQ_DEFAULT]); 1257 1258 if (ackreq != 0 && ackreq != 1) 1259 return -EINVAL; 1260 1261 return rdev_set_ackreq_default(rdev, wpan_dev, ackreq); 1262 } 1263 1264 static int nl802154_wpan_phy_netns(struct sk_buff *skb, struct genl_info *info) 1265 { 1266 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1267 struct net *net; 1268 int err; 1269 1270 if (info->attrs[NL802154_ATTR_PID]) { 1271 u32 pid = nla_get_u32(info->attrs[NL802154_ATTR_PID]); 1272 1273 net = get_net_ns_by_pid(pid); 1274 } else if (info->attrs[NL802154_ATTR_NETNS_FD]) { 1275 u32 fd = nla_get_u32(info->attrs[NL802154_ATTR_NETNS_FD]); 1276 1277 net = get_net_ns_by_fd(fd); 1278 } else { 1279 return -EINVAL; 1280 } 1281 1282 if (IS_ERR(net)) 1283 return PTR_ERR(net); 1284 1285 err = 0; 1286 1287 /* check if anything to do */ 1288 if (!net_eq(wpan_phy_net(&rdev->wpan_phy), net)) 1289 err = cfg802154_switch_netns(rdev, net); 1290 1291 put_net(net); 1292 return err; 1293 } 1294 1295 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL 1296 static const struct nla_policy nl802154_dev_addr_policy[NL802154_DEV_ADDR_ATTR_MAX + 1] = { 1297 [NL802154_DEV_ADDR_ATTR_PAN_ID] = { .type = NLA_U16 }, 1298 [NL802154_DEV_ADDR_ATTR_MODE] = { .type = NLA_U32 }, 1299 [NL802154_DEV_ADDR_ATTR_SHORT] = { .type = NLA_U16 }, 1300 [NL802154_DEV_ADDR_ATTR_EXTENDED] = { .type = NLA_U64 }, 1301 }; 1302 1303 static int 1304 ieee802154_llsec_parse_dev_addr(struct nlattr *nla, 1305 struct ieee802154_addr *addr) 1306 { 1307 struct nlattr *attrs[NL802154_DEV_ADDR_ATTR_MAX + 1]; 1308 1309 if (!nla || nla_parse_nested_deprecated(attrs, NL802154_DEV_ADDR_ATTR_MAX, nla, nl802154_dev_addr_policy, NULL)) 1310 return -EINVAL; 1311 1312 if (!attrs[NL802154_DEV_ADDR_ATTR_PAN_ID] || 1313 !attrs[NL802154_DEV_ADDR_ATTR_MODE] || 1314 !(attrs[NL802154_DEV_ADDR_ATTR_SHORT] || 1315 attrs[NL802154_DEV_ADDR_ATTR_EXTENDED])) 1316 return -EINVAL; 1317 1318 addr->pan_id = nla_get_le16(attrs[NL802154_DEV_ADDR_ATTR_PAN_ID]); 1319 addr->mode = nla_get_u32(attrs[NL802154_DEV_ADDR_ATTR_MODE]); 1320 switch (addr->mode) { 1321 case NL802154_DEV_ADDR_SHORT: 1322 addr->short_addr = nla_get_le16(attrs[NL802154_DEV_ADDR_ATTR_SHORT]); 1323 break; 1324 case NL802154_DEV_ADDR_EXTENDED: 1325 addr->extended_addr = nla_get_le64(attrs[NL802154_DEV_ADDR_ATTR_EXTENDED]); 1326 break; 1327 default: 1328 return -EINVAL; 1329 } 1330 1331 return 0; 1332 } 1333 1334 static const struct nla_policy nl802154_key_id_policy[NL802154_KEY_ID_ATTR_MAX + 1] = { 1335 [NL802154_KEY_ID_ATTR_MODE] = { .type = NLA_U32 }, 1336 [NL802154_KEY_ID_ATTR_INDEX] = { .type = NLA_U8 }, 1337 [NL802154_KEY_ID_ATTR_IMPLICIT] = { .type = NLA_NESTED }, 1338 [NL802154_KEY_ID_ATTR_SOURCE_SHORT] = { .type = NLA_U32 }, 1339 [NL802154_KEY_ID_ATTR_SOURCE_EXTENDED] = { .type = NLA_U64 }, 1340 }; 1341 1342 static int 1343 ieee802154_llsec_parse_key_id(struct nlattr *nla, 1344 struct ieee802154_llsec_key_id *desc) 1345 { 1346 struct nlattr *attrs[NL802154_KEY_ID_ATTR_MAX + 1]; 1347 1348 if (!nla || nla_parse_nested_deprecated(attrs, NL802154_KEY_ID_ATTR_MAX, nla, nl802154_key_id_policy, NULL)) 1349 return -EINVAL; 1350 1351 if (!attrs[NL802154_KEY_ID_ATTR_MODE]) 1352 return -EINVAL; 1353 1354 desc->mode = nla_get_u32(attrs[NL802154_KEY_ID_ATTR_MODE]); 1355 switch (desc->mode) { 1356 case NL802154_KEY_ID_MODE_IMPLICIT: 1357 if (!attrs[NL802154_KEY_ID_ATTR_IMPLICIT]) 1358 return -EINVAL; 1359 1360 if (ieee802154_llsec_parse_dev_addr(attrs[NL802154_KEY_ID_ATTR_IMPLICIT], 1361 &desc->device_addr) < 0) 1362 return -EINVAL; 1363 break; 1364 case NL802154_KEY_ID_MODE_INDEX: 1365 break; 1366 case NL802154_KEY_ID_MODE_INDEX_SHORT: 1367 if (!attrs[NL802154_KEY_ID_ATTR_SOURCE_SHORT]) 1368 return -EINVAL; 1369 1370 desc->short_source = nla_get_le32(attrs[NL802154_KEY_ID_ATTR_SOURCE_SHORT]); 1371 break; 1372 case NL802154_KEY_ID_MODE_INDEX_EXTENDED: 1373 if (!attrs[NL802154_KEY_ID_ATTR_SOURCE_EXTENDED]) 1374 return -EINVAL; 1375 1376 desc->extended_source = nla_get_le64(attrs[NL802154_KEY_ID_ATTR_SOURCE_EXTENDED]); 1377 break; 1378 default: 1379 return -EINVAL; 1380 } 1381 1382 if (desc->mode != NL802154_KEY_ID_MODE_IMPLICIT) { 1383 if (!attrs[NL802154_KEY_ID_ATTR_INDEX]) 1384 return -EINVAL; 1385 1386 /* TODO change id to idx */ 1387 desc->id = nla_get_u8(attrs[NL802154_KEY_ID_ATTR_INDEX]); 1388 } 1389 1390 return 0; 1391 } 1392 1393 static int nl802154_set_llsec_params(struct sk_buff *skb, 1394 struct genl_info *info) 1395 { 1396 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1397 struct net_device *dev = info->user_ptr[1]; 1398 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1399 struct ieee802154_llsec_params params; 1400 u32 changed = 0; 1401 int ret; 1402 1403 if (info->attrs[NL802154_ATTR_SEC_ENABLED]) { 1404 u8 enabled; 1405 1406 enabled = nla_get_u8(info->attrs[NL802154_ATTR_SEC_ENABLED]); 1407 if (enabled != 0 && enabled != 1) 1408 return -EINVAL; 1409 1410 params.enabled = nla_get_u8(info->attrs[NL802154_ATTR_SEC_ENABLED]); 1411 changed |= IEEE802154_LLSEC_PARAM_ENABLED; 1412 } 1413 1414 if (info->attrs[NL802154_ATTR_SEC_OUT_KEY_ID]) { 1415 ret = ieee802154_llsec_parse_key_id(info->attrs[NL802154_ATTR_SEC_OUT_KEY_ID], 1416 ¶ms.out_key); 1417 if (ret < 0) 1418 return ret; 1419 1420 changed |= IEEE802154_LLSEC_PARAM_OUT_KEY; 1421 } 1422 1423 if (info->attrs[NL802154_ATTR_SEC_OUT_LEVEL]) { 1424 params.out_level = nla_get_u32(info->attrs[NL802154_ATTR_SEC_OUT_LEVEL]); 1425 if (params.out_level > NL802154_SECLEVEL_MAX) 1426 return -EINVAL; 1427 1428 changed |= IEEE802154_LLSEC_PARAM_OUT_LEVEL; 1429 } 1430 1431 if (info->attrs[NL802154_ATTR_SEC_FRAME_COUNTER]) { 1432 params.frame_counter = nla_get_be32(info->attrs[NL802154_ATTR_SEC_FRAME_COUNTER]); 1433 changed |= IEEE802154_LLSEC_PARAM_FRAME_COUNTER; 1434 } 1435 1436 return rdev_set_llsec_params(rdev, wpan_dev, ¶ms, changed); 1437 } 1438 1439 static int nl802154_send_key(struct sk_buff *msg, u32 cmd, u32 portid, 1440 u32 seq, int flags, 1441 struct cfg802154_registered_device *rdev, 1442 struct net_device *dev, 1443 const struct ieee802154_llsec_key_entry *key) 1444 { 1445 void *hdr; 1446 u32 commands[NL802154_CMD_FRAME_NR_IDS / 32]; 1447 struct nlattr *nl_key, *nl_key_id; 1448 1449 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd); 1450 if (!hdr) 1451 return -1; 1452 1453 if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex)) 1454 goto nla_put_failure; 1455 1456 nl_key = nla_nest_start_noflag(msg, NL802154_ATTR_SEC_KEY); 1457 if (!nl_key) 1458 goto nla_put_failure; 1459 1460 nl_key_id = nla_nest_start_noflag(msg, NL802154_KEY_ATTR_ID); 1461 if (!nl_key_id) 1462 goto nla_put_failure; 1463 1464 if (ieee802154_llsec_send_key_id(msg, &key->id) < 0) 1465 goto nla_put_failure; 1466 1467 nla_nest_end(msg, nl_key_id); 1468 1469 if (nla_put_u8(msg, NL802154_KEY_ATTR_USAGE_FRAMES, 1470 key->key->frame_types)) 1471 goto nla_put_failure; 1472 1473 if (key->key->frame_types & BIT(NL802154_FRAME_CMD)) { 1474 /* TODO for each nested */ 1475 memset(commands, 0, sizeof(commands)); 1476 commands[7] = key->key->cmd_frame_ids; 1477 if (nla_put(msg, NL802154_KEY_ATTR_USAGE_CMDS, 1478 sizeof(commands), commands)) 1479 goto nla_put_failure; 1480 } 1481 1482 if (nla_put(msg, NL802154_KEY_ATTR_BYTES, NL802154_KEY_SIZE, 1483 key->key->key)) 1484 goto nla_put_failure; 1485 1486 nla_nest_end(msg, nl_key); 1487 genlmsg_end(msg, hdr); 1488 1489 return 0; 1490 1491 nla_put_failure: 1492 genlmsg_cancel(msg, hdr); 1493 return -EMSGSIZE; 1494 } 1495 1496 static int 1497 nl802154_dump_llsec_key(struct sk_buff *skb, struct netlink_callback *cb) 1498 { 1499 struct cfg802154_registered_device *rdev = NULL; 1500 struct ieee802154_llsec_key_entry *key; 1501 struct ieee802154_llsec_table *table; 1502 struct wpan_dev *wpan_dev; 1503 int err; 1504 1505 err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev); 1506 if (err) 1507 return err; 1508 1509 if (!wpan_dev->netdev) { 1510 err = -EINVAL; 1511 goto out_err; 1512 } 1513 1514 rdev_lock_llsec_table(rdev, wpan_dev); 1515 rdev_get_llsec_table(rdev, wpan_dev, &table); 1516 1517 /* TODO make it like station dump */ 1518 if (cb->args[2]) 1519 goto out; 1520 1521 list_for_each_entry(key, &table->keys, list) { 1522 if (nl802154_send_key(skb, NL802154_CMD_NEW_SEC_KEY, 1523 NETLINK_CB(cb->skb).portid, 1524 cb->nlh->nlmsg_seq, NLM_F_MULTI, 1525 rdev, wpan_dev->netdev, key) < 0) { 1526 /* TODO */ 1527 err = -EIO; 1528 rdev_unlock_llsec_table(rdev, wpan_dev); 1529 goto out_err; 1530 } 1531 } 1532 1533 cb->args[2] = 1; 1534 1535 out: 1536 rdev_unlock_llsec_table(rdev, wpan_dev); 1537 err = skb->len; 1538 out_err: 1539 nl802154_finish_wpan_dev_dump(rdev); 1540 1541 return err; 1542 } 1543 1544 static const struct nla_policy nl802154_key_policy[NL802154_KEY_ATTR_MAX + 1] = { 1545 [NL802154_KEY_ATTR_ID] = { NLA_NESTED }, 1546 /* TODO handle it as for_each_nested and NLA_FLAG? */ 1547 [NL802154_KEY_ATTR_USAGE_FRAMES] = { NLA_U8 }, 1548 /* TODO handle it as for_each_nested, not static array? */ 1549 [NL802154_KEY_ATTR_USAGE_CMDS] = { .len = NL802154_CMD_FRAME_NR_IDS / 8 }, 1550 [NL802154_KEY_ATTR_BYTES] = { .len = NL802154_KEY_SIZE }, 1551 }; 1552 1553 static int nl802154_add_llsec_key(struct sk_buff *skb, struct genl_info *info) 1554 { 1555 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1556 struct net_device *dev = info->user_ptr[1]; 1557 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1558 struct nlattr *attrs[NL802154_KEY_ATTR_MAX + 1]; 1559 struct ieee802154_llsec_key key = { }; 1560 struct ieee802154_llsec_key_id id = { }; 1561 u32 commands[NL802154_CMD_FRAME_NR_IDS / 32] = { }; 1562 1563 if (nla_parse_nested_deprecated(attrs, NL802154_KEY_ATTR_MAX, info->attrs[NL802154_ATTR_SEC_KEY], nl802154_key_policy, info->extack)) 1564 return -EINVAL; 1565 1566 if (!attrs[NL802154_KEY_ATTR_USAGE_FRAMES] || 1567 !attrs[NL802154_KEY_ATTR_BYTES]) 1568 return -EINVAL; 1569 1570 if (ieee802154_llsec_parse_key_id(attrs[NL802154_KEY_ATTR_ID], &id) < 0) 1571 return -ENOBUFS; 1572 1573 key.frame_types = nla_get_u8(attrs[NL802154_KEY_ATTR_USAGE_FRAMES]); 1574 if (key.frame_types > BIT(NL802154_FRAME_MAX) || 1575 ((key.frame_types & BIT(NL802154_FRAME_CMD)) && 1576 !attrs[NL802154_KEY_ATTR_USAGE_CMDS])) 1577 return -EINVAL; 1578 1579 if (attrs[NL802154_KEY_ATTR_USAGE_CMDS]) { 1580 /* TODO for each nested */ 1581 nla_memcpy(commands, attrs[NL802154_KEY_ATTR_USAGE_CMDS], 1582 NL802154_CMD_FRAME_NR_IDS / 8); 1583 1584 /* TODO understand the -EINVAL logic here? last condition */ 1585 if (commands[0] || commands[1] || commands[2] || commands[3] || 1586 commands[4] || commands[5] || commands[6] || 1587 commands[7] > BIT(NL802154_CMD_FRAME_MAX)) 1588 return -EINVAL; 1589 1590 key.cmd_frame_ids = commands[7]; 1591 } else { 1592 key.cmd_frame_ids = 0; 1593 } 1594 1595 nla_memcpy(key.key, attrs[NL802154_KEY_ATTR_BYTES], NL802154_KEY_SIZE); 1596 1597 if (ieee802154_llsec_parse_key_id(attrs[NL802154_KEY_ATTR_ID], &id) < 0) 1598 return -ENOBUFS; 1599 1600 return rdev_add_llsec_key(rdev, wpan_dev, &id, &key); 1601 } 1602 1603 static int nl802154_del_llsec_key(struct sk_buff *skb, struct genl_info *info) 1604 { 1605 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1606 struct net_device *dev = info->user_ptr[1]; 1607 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1608 struct nlattr *attrs[NL802154_KEY_ATTR_MAX + 1]; 1609 struct ieee802154_llsec_key_id id; 1610 1611 if (nla_parse_nested_deprecated(attrs, NL802154_KEY_ATTR_MAX, info->attrs[NL802154_ATTR_SEC_KEY], nl802154_key_policy, info->extack)) 1612 return -EINVAL; 1613 1614 if (ieee802154_llsec_parse_key_id(attrs[NL802154_KEY_ATTR_ID], &id) < 0) 1615 return -ENOBUFS; 1616 1617 return rdev_del_llsec_key(rdev, wpan_dev, &id); 1618 } 1619 1620 static int nl802154_send_device(struct sk_buff *msg, u32 cmd, u32 portid, 1621 u32 seq, int flags, 1622 struct cfg802154_registered_device *rdev, 1623 struct net_device *dev, 1624 const struct ieee802154_llsec_device *dev_desc) 1625 { 1626 void *hdr; 1627 struct nlattr *nl_device; 1628 1629 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd); 1630 if (!hdr) 1631 return -1; 1632 1633 if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex)) 1634 goto nla_put_failure; 1635 1636 nl_device = nla_nest_start_noflag(msg, NL802154_ATTR_SEC_DEVICE); 1637 if (!nl_device) 1638 goto nla_put_failure; 1639 1640 if (nla_put_u32(msg, NL802154_DEV_ATTR_FRAME_COUNTER, 1641 dev_desc->frame_counter) || 1642 nla_put_le16(msg, NL802154_DEV_ATTR_PAN_ID, dev_desc->pan_id) || 1643 nla_put_le16(msg, NL802154_DEV_ATTR_SHORT_ADDR, 1644 dev_desc->short_addr) || 1645 nla_put_le64(msg, NL802154_DEV_ATTR_EXTENDED_ADDR, 1646 dev_desc->hwaddr, NL802154_DEV_ATTR_PAD) || 1647 nla_put_u8(msg, NL802154_DEV_ATTR_SECLEVEL_EXEMPT, 1648 dev_desc->seclevel_exempt) || 1649 nla_put_u32(msg, NL802154_DEV_ATTR_KEY_MODE, dev_desc->key_mode)) 1650 goto nla_put_failure; 1651 1652 nla_nest_end(msg, nl_device); 1653 genlmsg_end(msg, hdr); 1654 1655 return 0; 1656 1657 nla_put_failure: 1658 genlmsg_cancel(msg, hdr); 1659 return -EMSGSIZE; 1660 } 1661 1662 static int 1663 nl802154_dump_llsec_dev(struct sk_buff *skb, struct netlink_callback *cb) 1664 { 1665 struct cfg802154_registered_device *rdev = NULL; 1666 struct ieee802154_llsec_device *dev; 1667 struct ieee802154_llsec_table *table; 1668 struct wpan_dev *wpan_dev; 1669 int err; 1670 1671 err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev); 1672 if (err) 1673 return err; 1674 1675 if (!wpan_dev->netdev) { 1676 err = -EINVAL; 1677 goto out_err; 1678 } 1679 1680 rdev_lock_llsec_table(rdev, wpan_dev); 1681 rdev_get_llsec_table(rdev, wpan_dev, &table); 1682 1683 /* TODO make it like station dump */ 1684 if (cb->args[2]) 1685 goto out; 1686 1687 list_for_each_entry(dev, &table->devices, list) { 1688 if (nl802154_send_device(skb, NL802154_CMD_NEW_SEC_LEVEL, 1689 NETLINK_CB(cb->skb).portid, 1690 cb->nlh->nlmsg_seq, NLM_F_MULTI, 1691 rdev, wpan_dev->netdev, dev) < 0) { 1692 /* TODO */ 1693 err = -EIO; 1694 rdev_unlock_llsec_table(rdev, wpan_dev); 1695 goto out_err; 1696 } 1697 } 1698 1699 cb->args[2] = 1; 1700 1701 out: 1702 rdev_unlock_llsec_table(rdev, wpan_dev); 1703 err = skb->len; 1704 out_err: 1705 nl802154_finish_wpan_dev_dump(rdev); 1706 1707 return err; 1708 } 1709 1710 static const struct nla_policy nl802154_dev_policy[NL802154_DEV_ATTR_MAX + 1] = { 1711 [NL802154_DEV_ATTR_FRAME_COUNTER] = { NLA_U32 }, 1712 [NL802154_DEV_ATTR_PAN_ID] = { .type = NLA_U16 }, 1713 [NL802154_DEV_ATTR_SHORT_ADDR] = { .type = NLA_U16 }, 1714 [NL802154_DEV_ATTR_EXTENDED_ADDR] = { .type = NLA_U64 }, 1715 [NL802154_DEV_ATTR_SECLEVEL_EXEMPT] = { NLA_U8 }, 1716 [NL802154_DEV_ATTR_KEY_MODE] = { NLA_U32 }, 1717 }; 1718 1719 static int 1720 ieee802154_llsec_parse_device(struct nlattr *nla, 1721 struct ieee802154_llsec_device *dev) 1722 { 1723 struct nlattr *attrs[NL802154_DEV_ATTR_MAX + 1]; 1724 1725 if (!nla || nla_parse_nested_deprecated(attrs, NL802154_DEV_ATTR_MAX, nla, nl802154_dev_policy, NULL)) 1726 return -EINVAL; 1727 1728 memset(dev, 0, sizeof(*dev)); 1729 1730 if (!attrs[NL802154_DEV_ATTR_FRAME_COUNTER] || 1731 !attrs[NL802154_DEV_ATTR_PAN_ID] || 1732 !attrs[NL802154_DEV_ATTR_SHORT_ADDR] || 1733 !attrs[NL802154_DEV_ATTR_EXTENDED_ADDR] || 1734 !attrs[NL802154_DEV_ATTR_SECLEVEL_EXEMPT] || 1735 !attrs[NL802154_DEV_ATTR_KEY_MODE]) 1736 return -EINVAL; 1737 1738 /* TODO be32 */ 1739 dev->frame_counter = nla_get_u32(attrs[NL802154_DEV_ATTR_FRAME_COUNTER]); 1740 dev->pan_id = nla_get_le16(attrs[NL802154_DEV_ATTR_PAN_ID]); 1741 dev->short_addr = nla_get_le16(attrs[NL802154_DEV_ATTR_SHORT_ADDR]); 1742 /* TODO rename hwaddr to extended_addr */ 1743 dev->hwaddr = nla_get_le64(attrs[NL802154_DEV_ATTR_EXTENDED_ADDR]); 1744 dev->seclevel_exempt = nla_get_u8(attrs[NL802154_DEV_ATTR_SECLEVEL_EXEMPT]); 1745 dev->key_mode = nla_get_u32(attrs[NL802154_DEV_ATTR_KEY_MODE]); 1746 1747 if (dev->key_mode > NL802154_DEVKEY_MAX || 1748 (dev->seclevel_exempt != 0 && dev->seclevel_exempt != 1)) 1749 return -EINVAL; 1750 1751 return 0; 1752 } 1753 1754 static int nl802154_add_llsec_dev(struct sk_buff *skb, struct genl_info *info) 1755 { 1756 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1757 struct net_device *dev = info->user_ptr[1]; 1758 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1759 struct ieee802154_llsec_device dev_desc; 1760 1761 if (ieee802154_llsec_parse_device(info->attrs[NL802154_ATTR_SEC_DEVICE], 1762 &dev_desc) < 0) 1763 return -EINVAL; 1764 1765 return rdev_add_device(rdev, wpan_dev, &dev_desc); 1766 } 1767 1768 static int nl802154_del_llsec_dev(struct sk_buff *skb, struct genl_info *info) 1769 { 1770 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1771 struct net_device *dev = info->user_ptr[1]; 1772 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1773 struct nlattr *attrs[NL802154_DEV_ATTR_MAX + 1]; 1774 __le64 extended_addr; 1775 1776 if (nla_parse_nested_deprecated(attrs, NL802154_DEV_ATTR_MAX, info->attrs[NL802154_ATTR_SEC_DEVICE], nl802154_dev_policy, info->extack)) 1777 return -EINVAL; 1778 1779 if (!attrs[NL802154_DEV_ATTR_EXTENDED_ADDR]) 1780 return -EINVAL; 1781 1782 extended_addr = nla_get_le64(attrs[NL802154_DEV_ATTR_EXTENDED_ADDR]); 1783 return rdev_del_device(rdev, wpan_dev, extended_addr); 1784 } 1785 1786 static int nl802154_send_devkey(struct sk_buff *msg, u32 cmd, u32 portid, 1787 u32 seq, int flags, 1788 struct cfg802154_registered_device *rdev, 1789 struct net_device *dev, __le64 extended_addr, 1790 const struct ieee802154_llsec_device_key *devkey) 1791 { 1792 void *hdr; 1793 struct nlattr *nl_devkey, *nl_key_id; 1794 1795 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd); 1796 if (!hdr) 1797 return -1; 1798 1799 if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex)) 1800 goto nla_put_failure; 1801 1802 nl_devkey = nla_nest_start_noflag(msg, NL802154_ATTR_SEC_DEVKEY); 1803 if (!nl_devkey) 1804 goto nla_put_failure; 1805 1806 if (nla_put_le64(msg, NL802154_DEVKEY_ATTR_EXTENDED_ADDR, 1807 extended_addr, NL802154_DEVKEY_ATTR_PAD) || 1808 nla_put_u32(msg, NL802154_DEVKEY_ATTR_FRAME_COUNTER, 1809 devkey->frame_counter)) 1810 goto nla_put_failure; 1811 1812 nl_key_id = nla_nest_start_noflag(msg, NL802154_DEVKEY_ATTR_ID); 1813 if (!nl_key_id) 1814 goto nla_put_failure; 1815 1816 if (ieee802154_llsec_send_key_id(msg, &devkey->key_id) < 0) 1817 goto nla_put_failure; 1818 1819 nla_nest_end(msg, nl_key_id); 1820 nla_nest_end(msg, nl_devkey); 1821 genlmsg_end(msg, hdr); 1822 1823 return 0; 1824 1825 nla_put_failure: 1826 genlmsg_cancel(msg, hdr); 1827 return -EMSGSIZE; 1828 } 1829 1830 static int 1831 nl802154_dump_llsec_devkey(struct sk_buff *skb, struct netlink_callback *cb) 1832 { 1833 struct cfg802154_registered_device *rdev = NULL; 1834 struct ieee802154_llsec_device_key *kpos; 1835 struct ieee802154_llsec_device *dpos; 1836 struct ieee802154_llsec_table *table; 1837 struct wpan_dev *wpan_dev; 1838 int err; 1839 1840 err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev); 1841 if (err) 1842 return err; 1843 1844 if (!wpan_dev->netdev) { 1845 err = -EINVAL; 1846 goto out_err; 1847 } 1848 1849 rdev_lock_llsec_table(rdev, wpan_dev); 1850 rdev_get_llsec_table(rdev, wpan_dev, &table); 1851 1852 /* TODO make it like station dump */ 1853 if (cb->args[2]) 1854 goto out; 1855 1856 /* TODO look if remove devkey and do some nested attribute */ 1857 list_for_each_entry(dpos, &table->devices, list) { 1858 list_for_each_entry(kpos, &dpos->keys, list) { 1859 if (nl802154_send_devkey(skb, 1860 NL802154_CMD_NEW_SEC_LEVEL, 1861 NETLINK_CB(cb->skb).portid, 1862 cb->nlh->nlmsg_seq, 1863 NLM_F_MULTI, rdev, 1864 wpan_dev->netdev, 1865 dpos->hwaddr, 1866 kpos) < 0) { 1867 /* TODO */ 1868 err = -EIO; 1869 rdev_unlock_llsec_table(rdev, wpan_dev); 1870 goto out_err; 1871 } 1872 } 1873 } 1874 1875 cb->args[2] = 1; 1876 1877 out: 1878 rdev_unlock_llsec_table(rdev, wpan_dev); 1879 err = skb->len; 1880 out_err: 1881 nl802154_finish_wpan_dev_dump(rdev); 1882 1883 return err; 1884 } 1885 1886 static const struct nla_policy nl802154_devkey_policy[NL802154_DEVKEY_ATTR_MAX + 1] = { 1887 [NL802154_DEVKEY_ATTR_FRAME_COUNTER] = { NLA_U32 }, 1888 [NL802154_DEVKEY_ATTR_EXTENDED_ADDR] = { NLA_U64 }, 1889 [NL802154_DEVKEY_ATTR_ID] = { NLA_NESTED }, 1890 }; 1891 1892 static int nl802154_add_llsec_devkey(struct sk_buff *skb, struct genl_info *info) 1893 { 1894 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1895 struct net_device *dev = info->user_ptr[1]; 1896 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1897 struct nlattr *attrs[NL802154_DEVKEY_ATTR_MAX + 1]; 1898 struct ieee802154_llsec_device_key key; 1899 __le64 extended_addr; 1900 1901 if (!info->attrs[NL802154_ATTR_SEC_DEVKEY] || 1902 nla_parse_nested_deprecated(attrs, NL802154_DEVKEY_ATTR_MAX, info->attrs[NL802154_ATTR_SEC_DEVKEY], nl802154_devkey_policy, info->extack) < 0) 1903 return -EINVAL; 1904 1905 if (!attrs[NL802154_DEVKEY_ATTR_FRAME_COUNTER] || 1906 !attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR]) 1907 return -EINVAL; 1908 1909 /* TODO change key.id ? */ 1910 if (ieee802154_llsec_parse_key_id(attrs[NL802154_DEVKEY_ATTR_ID], 1911 &key.key_id) < 0) 1912 return -ENOBUFS; 1913 1914 /* TODO be32 */ 1915 key.frame_counter = nla_get_u32(attrs[NL802154_DEVKEY_ATTR_FRAME_COUNTER]); 1916 /* TODO change naming hwaddr -> extended_addr 1917 * check unique identifier short+pan OR extended_addr 1918 */ 1919 extended_addr = nla_get_le64(attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR]); 1920 return rdev_add_devkey(rdev, wpan_dev, extended_addr, &key); 1921 } 1922 1923 static int nl802154_del_llsec_devkey(struct sk_buff *skb, struct genl_info *info) 1924 { 1925 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1926 struct net_device *dev = info->user_ptr[1]; 1927 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1928 struct nlattr *attrs[NL802154_DEVKEY_ATTR_MAX + 1]; 1929 struct ieee802154_llsec_device_key key; 1930 __le64 extended_addr; 1931 1932 if (nla_parse_nested_deprecated(attrs, NL802154_DEVKEY_ATTR_MAX, info->attrs[NL802154_ATTR_SEC_DEVKEY], nl802154_devkey_policy, info->extack)) 1933 return -EINVAL; 1934 1935 if (!attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR]) 1936 return -EINVAL; 1937 1938 /* TODO change key.id ? */ 1939 if (ieee802154_llsec_parse_key_id(attrs[NL802154_DEVKEY_ATTR_ID], 1940 &key.key_id) < 0) 1941 return -ENOBUFS; 1942 1943 /* TODO change naming hwaddr -> extended_addr 1944 * check unique identifier short+pan OR extended_addr 1945 */ 1946 extended_addr = nla_get_le64(attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR]); 1947 return rdev_del_devkey(rdev, wpan_dev, extended_addr, &key); 1948 } 1949 1950 static int nl802154_send_seclevel(struct sk_buff *msg, u32 cmd, u32 portid, 1951 u32 seq, int flags, 1952 struct cfg802154_registered_device *rdev, 1953 struct net_device *dev, 1954 const struct ieee802154_llsec_seclevel *sl) 1955 { 1956 void *hdr; 1957 struct nlattr *nl_seclevel; 1958 1959 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd); 1960 if (!hdr) 1961 return -1; 1962 1963 if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex)) 1964 goto nla_put_failure; 1965 1966 nl_seclevel = nla_nest_start_noflag(msg, NL802154_ATTR_SEC_LEVEL); 1967 if (!nl_seclevel) 1968 goto nla_put_failure; 1969 1970 if (nla_put_u32(msg, NL802154_SECLEVEL_ATTR_FRAME, sl->frame_type) || 1971 nla_put_u32(msg, NL802154_SECLEVEL_ATTR_LEVELS, sl->sec_levels) || 1972 nla_put_u8(msg, NL802154_SECLEVEL_ATTR_DEV_OVERRIDE, 1973 sl->device_override)) 1974 goto nla_put_failure; 1975 1976 if (sl->frame_type == NL802154_FRAME_CMD) { 1977 if (nla_put_u32(msg, NL802154_SECLEVEL_ATTR_CMD_FRAME, 1978 sl->cmd_frame_id)) 1979 goto nla_put_failure; 1980 } 1981 1982 nla_nest_end(msg, nl_seclevel); 1983 genlmsg_end(msg, hdr); 1984 1985 return 0; 1986 1987 nla_put_failure: 1988 genlmsg_cancel(msg, hdr); 1989 return -EMSGSIZE; 1990 } 1991 1992 static int 1993 nl802154_dump_llsec_seclevel(struct sk_buff *skb, struct netlink_callback *cb) 1994 { 1995 struct cfg802154_registered_device *rdev = NULL; 1996 struct ieee802154_llsec_seclevel *sl; 1997 struct ieee802154_llsec_table *table; 1998 struct wpan_dev *wpan_dev; 1999 int err; 2000 2001 err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev); 2002 if (err) 2003 return err; 2004 2005 if (!wpan_dev->netdev) { 2006 err = -EINVAL; 2007 goto out_err; 2008 } 2009 2010 rdev_lock_llsec_table(rdev, wpan_dev); 2011 rdev_get_llsec_table(rdev, wpan_dev, &table); 2012 2013 /* TODO make it like station dump */ 2014 if (cb->args[2]) 2015 goto out; 2016 2017 list_for_each_entry(sl, &table->security_levels, list) { 2018 if (nl802154_send_seclevel(skb, NL802154_CMD_NEW_SEC_LEVEL, 2019 NETLINK_CB(cb->skb).portid, 2020 cb->nlh->nlmsg_seq, NLM_F_MULTI, 2021 rdev, wpan_dev->netdev, sl) < 0) { 2022 /* TODO */ 2023 err = -EIO; 2024 rdev_unlock_llsec_table(rdev, wpan_dev); 2025 goto out_err; 2026 } 2027 } 2028 2029 cb->args[2] = 1; 2030 2031 out: 2032 rdev_unlock_llsec_table(rdev, wpan_dev); 2033 err = skb->len; 2034 out_err: 2035 nl802154_finish_wpan_dev_dump(rdev); 2036 2037 return err; 2038 } 2039 2040 static const struct nla_policy nl802154_seclevel_policy[NL802154_SECLEVEL_ATTR_MAX + 1] = { 2041 [NL802154_SECLEVEL_ATTR_LEVELS] = { .type = NLA_U8 }, 2042 [NL802154_SECLEVEL_ATTR_FRAME] = { .type = NLA_U32 }, 2043 [NL802154_SECLEVEL_ATTR_CMD_FRAME] = { .type = NLA_U32 }, 2044 [NL802154_SECLEVEL_ATTR_DEV_OVERRIDE] = { .type = NLA_U8 }, 2045 }; 2046 2047 static int 2048 llsec_parse_seclevel(struct nlattr *nla, struct ieee802154_llsec_seclevel *sl) 2049 { 2050 struct nlattr *attrs[NL802154_SECLEVEL_ATTR_MAX + 1]; 2051 2052 if (!nla || nla_parse_nested_deprecated(attrs, NL802154_SECLEVEL_ATTR_MAX, nla, nl802154_seclevel_policy, NULL)) 2053 return -EINVAL; 2054 2055 memset(sl, 0, sizeof(*sl)); 2056 2057 if (!attrs[NL802154_SECLEVEL_ATTR_LEVELS] || 2058 !attrs[NL802154_SECLEVEL_ATTR_FRAME] || 2059 !attrs[NL802154_SECLEVEL_ATTR_DEV_OVERRIDE]) 2060 return -EINVAL; 2061 2062 sl->sec_levels = nla_get_u8(attrs[NL802154_SECLEVEL_ATTR_LEVELS]); 2063 sl->frame_type = nla_get_u32(attrs[NL802154_SECLEVEL_ATTR_FRAME]); 2064 sl->device_override = nla_get_u8(attrs[NL802154_SECLEVEL_ATTR_DEV_OVERRIDE]); 2065 if (sl->frame_type > NL802154_FRAME_MAX || 2066 (sl->device_override != 0 && sl->device_override != 1)) 2067 return -EINVAL; 2068 2069 if (sl->frame_type == NL802154_FRAME_CMD) { 2070 if (!attrs[NL802154_SECLEVEL_ATTR_CMD_FRAME]) 2071 return -EINVAL; 2072 2073 sl->cmd_frame_id = nla_get_u32(attrs[NL802154_SECLEVEL_ATTR_CMD_FRAME]); 2074 if (sl->cmd_frame_id > NL802154_CMD_FRAME_MAX) 2075 return -EINVAL; 2076 } 2077 2078 return 0; 2079 } 2080 2081 static int nl802154_add_llsec_seclevel(struct sk_buff *skb, 2082 struct genl_info *info) 2083 { 2084 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 2085 struct net_device *dev = info->user_ptr[1]; 2086 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 2087 struct ieee802154_llsec_seclevel sl; 2088 2089 if (llsec_parse_seclevel(info->attrs[NL802154_ATTR_SEC_LEVEL], 2090 &sl) < 0) 2091 return -EINVAL; 2092 2093 return rdev_add_seclevel(rdev, wpan_dev, &sl); 2094 } 2095 2096 static int nl802154_del_llsec_seclevel(struct sk_buff *skb, 2097 struct genl_info *info) 2098 { 2099 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 2100 struct net_device *dev = info->user_ptr[1]; 2101 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 2102 struct ieee802154_llsec_seclevel sl; 2103 2104 if (!info->attrs[NL802154_ATTR_SEC_LEVEL] || 2105 llsec_parse_seclevel(info->attrs[NL802154_ATTR_SEC_LEVEL], 2106 &sl) < 0) 2107 return -EINVAL; 2108 2109 return rdev_del_seclevel(rdev, wpan_dev, &sl); 2110 } 2111 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */ 2112 2113 #define NL802154_FLAG_NEED_WPAN_PHY 0x01 2114 #define NL802154_FLAG_NEED_NETDEV 0x02 2115 #define NL802154_FLAG_NEED_RTNL 0x04 2116 #define NL802154_FLAG_CHECK_NETDEV_UP 0x08 2117 #define NL802154_FLAG_NEED_NETDEV_UP (NL802154_FLAG_NEED_NETDEV |\ 2118 NL802154_FLAG_CHECK_NETDEV_UP) 2119 #define NL802154_FLAG_NEED_WPAN_DEV 0x10 2120 #define NL802154_FLAG_NEED_WPAN_DEV_UP (NL802154_FLAG_NEED_WPAN_DEV |\ 2121 NL802154_FLAG_CHECK_NETDEV_UP) 2122 2123 static int nl802154_pre_doit(const struct genl_ops *ops, struct sk_buff *skb, 2124 struct genl_info *info) 2125 { 2126 struct cfg802154_registered_device *rdev; 2127 struct wpan_dev *wpan_dev; 2128 struct net_device *dev; 2129 bool rtnl = ops->internal_flags & NL802154_FLAG_NEED_RTNL; 2130 2131 if (rtnl) 2132 rtnl_lock(); 2133 2134 if (ops->internal_flags & NL802154_FLAG_NEED_WPAN_PHY) { 2135 rdev = cfg802154_get_dev_from_info(genl_info_net(info), info); 2136 if (IS_ERR(rdev)) { 2137 if (rtnl) 2138 rtnl_unlock(); 2139 return PTR_ERR(rdev); 2140 } 2141 info->user_ptr[0] = rdev; 2142 } else if (ops->internal_flags & NL802154_FLAG_NEED_NETDEV || 2143 ops->internal_flags & NL802154_FLAG_NEED_WPAN_DEV) { 2144 ASSERT_RTNL(); 2145 wpan_dev = __cfg802154_wpan_dev_from_attrs(genl_info_net(info), 2146 info->attrs); 2147 if (IS_ERR(wpan_dev)) { 2148 if (rtnl) 2149 rtnl_unlock(); 2150 return PTR_ERR(wpan_dev); 2151 } 2152 2153 dev = wpan_dev->netdev; 2154 rdev = wpan_phy_to_rdev(wpan_dev->wpan_phy); 2155 2156 if (ops->internal_flags & NL802154_FLAG_NEED_NETDEV) { 2157 if (!dev) { 2158 if (rtnl) 2159 rtnl_unlock(); 2160 return -EINVAL; 2161 } 2162 2163 info->user_ptr[1] = dev; 2164 } else { 2165 info->user_ptr[1] = wpan_dev; 2166 } 2167 2168 if (dev) { 2169 if (ops->internal_flags & NL802154_FLAG_CHECK_NETDEV_UP && 2170 !netif_running(dev)) { 2171 if (rtnl) 2172 rtnl_unlock(); 2173 return -ENETDOWN; 2174 } 2175 2176 dev_hold(dev); 2177 } 2178 2179 info->user_ptr[0] = rdev; 2180 } 2181 2182 return 0; 2183 } 2184 2185 static void nl802154_post_doit(const struct genl_ops *ops, struct sk_buff *skb, 2186 struct genl_info *info) 2187 { 2188 if (info->user_ptr[1]) { 2189 if (ops->internal_flags & NL802154_FLAG_NEED_WPAN_DEV) { 2190 struct wpan_dev *wpan_dev = info->user_ptr[1]; 2191 2192 if (wpan_dev->netdev) 2193 dev_put(wpan_dev->netdev); 2194 } else { 2195 dev_put(info->user_ptr[1]); 2196 } 2197 } 2198 2199 if (ops->internal_flags & NL802154_FLAG_NEED_RTNL) 2200 rtnl_unlock(); 2201 } 2202 2203 static const struct genl_ops nl802154_ops[] = { 2204 { 2205 .cmd = NL802154_CMD_GET_WPAN_PHY, 2206 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2207 .doit = nl802154_get_wpan_phy, 2208 .dumpit = nl802154_dump_wpan_phy, 2209 .done = nl802154_dump_wpan_phy_done, 2210 /* can be retrieved by unprivileged users */ 2211 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY | 2212 NL802154_FLAG_NEED_RTNL, 2213 }, 2214 { 2215 .cmd = NL802154_CMD_GET_INTERFACE, 2216 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2217 .doit = nl802154_get_interface, 2218 .dumpit = nl802154_dump_interface, 2219 /* can be retrieved by unprivileged users */ 2220 .internal_flags = NL802154_FLAG_NEED_WPAN_DEV | 2221 NL802154_FLAG_NEED_RTNL, 2222 }, 2223 { 2224 .cmd = NL802154_CMD_NEW_INTERFACE, 2225 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2226 .doit = nl802154_new_interface, 2227 .flags = GENL_ADMIN_PERM, 2228 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY | 2229 NL802154_FLAG_NEED_RTNL, 2230 }, 2231 { 2232 .cmd = NL802154_CMD_DEL_INTERFACE, 2233 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2234 .doit = nl802154_del_interface, 2235 .flags = GENL_ADMIN_PERM, 2236 .internal_flags = NL802154_FLAG_NEED_WPAN_DEV | 2237 NL802154_FLAG_NEED_RTNL, 2238 }, 2239 { 2240 .cmd = NL802154_CMD_SET_CHANNEL, 2241 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2242 .doit = nl802154_set_channel, 2243 .flags = GENL_ADMIN_PERM, 2244 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY | 2245 NL802154_FLAG_NEED_RTNL, 2246 }, 2247 { 2248 .cmd = NL802154_CMD_SET_CCA_MODE, 2249 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2250 .doit = nl802154_set_cca_mode, 2251 .flags = GENL_ADMIN_PERM, 2252 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY | 2253 NL802154_FLAG_NEED_RTNL, 2254 }, 2255 { 2256 .cmd = NL802154_CMD_SET_CCA_ED_LEVEL, 2257 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2258 .doit = nl802154_set_cca_ed_level, 2259 .flags = GENL_ADMIN_PERM, 2260 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY | 2261 NL802154_FLAG_NEED_RTNL, 2262 }, 2263 { 2264 .cmd = NL802154_CMD_SET_TX_POWER, 2265 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2266 .doit = nl802154_set_tx_power, 2267 .flags = GENL_ADMIN_PERM, 2268 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY | 2269 NL802154_FLAG_NEED_RTNL, 2270 }, 2271 { 2272 .cmd = NL802154_CMD_SET_WPAN_PHY_NETNS, 2273 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2274 .doit = nl802154_wpan_phy_netns, 2275 .flags = GENL_ADMIN_PERM, 2276 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY | 2277 NL802154_FLAG_NEED_RTNL, 2278 }, 2279 { 2280 .cmd = NL802154_CMD_SET_PAN_ID, 2281 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2282 .doit = nl802154_set_pan_id, 2283 .flags = GENL_ADMIN_PERM, 2284 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2285 NL802154_FLAG_NEED_RTNL, 2286 }, 2287 { 2288 .cmd = NL802154_CMD_SET_SHORT_ADDR, 2289 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2290 .doit = nl802154_set_short_addr, 2291 .flags = GENL_ADMIN_PERM, 2292 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2293 NL802154_FLAG_NEED_RTNL, 2294 }, 2295 { 2296 .cmd = NL802154_CMD_SET_BACKOFF_EXPONENT, 2297 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2298 .doit = nl802154_set_backoff_exponent, 2299 .flags = GENL_ADMIN_PERM, 2300 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2301 NL802154_FLAG_NEED_RTNL, 2302 }, 2303 { 2304 .cmd = NL802154_CMD_SET_MAX_CSMA_BACKOFFS, 2305 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2306 .doit = nl802154_set_max_csma_backoffs, 2307 .flags = GENL_ADMIN_PERM, 2308 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2309 NL802154_FLAG_NEED_RTNL, 2310 }, 2311 { 2312 .cmd = NL802154_CMD_SET_MAX_FRAME_RETRIES, 2313 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2314 .doit = nl802154_set_max_frame_retries, 2315 .flags = GENL_ADMIN_PERM, 2316 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2317 NL802154_FLAG_NEED_RTNL, 2318 }, 2319 { 2320 .cmd = NL802154_CMD_SET_LBT_MODE, 2321 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2322 .doit = nl802154_set_lbt_mode, 2323 .flags = GENL_ADMIN_PERM, 2324 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2325 NL802154_FLAG_NEED_RTNL, 2326 }, 2327 { 2328 .cmd = NL802154_CMD_SET_ACKREQ_DEFAULT, 2329 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2330 .doit = nl802154_set_ackreq_default, 2331 .flags = GENL_ADMIN_PERM, 2332 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2333 NL802154_FLAG_NEED_RTNL, 2334 }, 2335 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL 2336 { 2337 .cmd = NL802154_CMD_SET_SEC_PARAMS, 2338 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2339 .doit = nl802154_set_llsec_params, 2340 .flags = GENL_ADMIN_PERM, 2341 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2342 NL802154_FLAG_NEED_RTNL, 2343 }, 2344 { 2345 .cmd = NL802154_CMD_GET_SEC_KEY, 2346 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2347 /* TODO .doit by matching key id? */ 2348 .dumpit = nl802154_dump_llsec_key, 2349 .flags = GENL_ADMIN_PERM, 2350 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2351 NL802154_FLAG_NEED_RTNL, 2352 }, 2353 { 2354 .cmd = NL802154_CMD_NEW_SEC_KEY, 2355 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2356 .doit = nl802154_add_llsec_key, 2357 .flags = GENL_ADMIN_PERM, 2358 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2359 NL802154_FLAG_NEED_RTNL, 2360 }, 2361 { 2362 .cmd = NL802154_CMD_DEL_SEC_KEY, 2363 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2364 .doit = nl802154_del_llsec_key, 2365 .flags = GENL_ADMIN_PERM, 2366 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2367 NL802154_FLAG_NEED_RTNL, 2368 }, 2369 /* TODO unique identifier must short+pan OR extended_addr */ 2370 { 2371 .cmd = NL802154_CMD_GET_SEC_DEV, 2372 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2373 /* TODO .doit by matching extended_addr? */ 2374 .dumpit = nl802154_dump_llsec_dev, 2375 .flags = GENL_ADMIN_PERM, 2376 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2377 NL802154_FLAG_NEED_RTNL, 2378 }, 2379 { 2380 .cmd = NL802154_CMD_NEW_SEC_DEV, 2381 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2382 .doit = nl802154_add_llsec_dev, 2383 .flags = GENL_ADMIN_PERM, 2384 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2385 NL802154_FLAG_NEED_RTNL, 2386 }, 2387 { 2388 .cmd = NL802154_CMD_DEL_SEC_DEV, 2389 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2390 .doit = nl802154_del_llsec_dev, 2391 .flags = GENL_ADMIN_PERM, 2392 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2393 NL802154_FLAG_NEED_RTNL, 2394 }, 2395 /* TODO remove complete devkey, put it as nested? */ 2396 { 2397 .cmd = NL802154_CMD_GET_SEC_DEVKEY, 2398 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2399 /* TODO doit by matching ??? */ 2400 .dumpit = nl802154_dump_llsec_devkey, 2401 .flags = GENL_ADMIN_PERM, 2402 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2403 NL802154_FLAG_NEED_RTNL, 2404 }, 2405 { 2406 .cmd = NL802154_CMD_NEW_SEC_DEVKEY, 2407 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2408 .doit = nl802154_add_llsec_devkey, 2409 .flags = GENL_ADMIN_PERM, 2410 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2411 NL802154_FLAG_NEED_RTNL, 2412 }, 2413 { 2414 .cmd = NL802154_CMD_DEL_SEC_DEVKEY, 2415 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2416 .doit = nl802154_del_llsec_devkey, 2417 .flags = GENL_ADMIN_PERM, 2418 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2419 NL802154_FLAG_NEED_RTNL, 2420 }, 2421 { 2422 .cmd = NL802154_CMD_GET_SEC_LEVEL, 2423 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2424 /* TODO .doit by matching frame_type? */ 2425 .dumpit = nl802154_dump_llsec_seclevel, 2426 .flags = GENL_ADMIN_PERM, 2427 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2428 NL802154_FLAG_NEED_RTNL, 2429 }, 2430 { 2431 .cmd = NL802154_CMD_NEW_SEC_LEVEL, 2432 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2433 .doit = nl802154_add_llsec_seclevel, 2434 .flags = GENL_ADMIN_PERM, 2435 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2436 NL802154_FLAG_NEED_RTNL, 2437 }, 2438 { 2439 .cmd = NL802154_CMD_DEL_SEC_LEVEL, 2440 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2441 /* TODO match frame_type only? */ 2442 .doit = nl802154_del_llsec_seclevel, 2443 .flags = GENL_ADMIN_PERM, 2444 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2445 NL802154_FLAG_NEED_RTNL, 2446 }, 2447 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */ 2448 }; 2449 2450 static struct genl_family nl802154_fam __ro_after_init = { 2451 .name = NL802154_GENL_NAME, /* have users key off the name instead */ 2452 .hdrsize = 0, /* no private header */ 2453 .version = 1, /* no particular meaning now */ 2454 .maxattr = NL802154_ATTR_MAX, 2455 .policy = nl802154_policy, 2456 .netnsok = true, 2457 .pre_doit = nl802154_pre_doit, 2458 .post_doit = nl802154_post_doit, 2459 .module = THIS_MODULE, 2460 .ops = nl802154_ops, 2461 .n_ops = ARRAY_SIZE(nl802154_ops), 2462 .mcgrps = nl802154_mcgrps, 2463 .n_mcgrps = ARRAY_SIZE(nl802154_mcgrps), 2464 }; 2465 2466 /* initialisation/exit functions */ 2467 int __init nl802154_init(void) 2468 { 2469 return genl_register_family(&nl802154_fam); 2470 } 2471 2472 void nl802154_exit(void) 2473 { 2474 genl_unregister_family(&nl802154_fam); 2475 } 2476