1 /* This program is free software; you can redistribute it and/or modify 2 * it under the terms of the GNU General Public License version 2 3 * as published by the Free Software Foundation. 4 * 5 * This program is distributed in the hope that it will be useful, 6 * but WITHOUT ANY WARRANTY; without even the implied warranty of 7 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 8 * GNU General Public License for more details. 9 * 10 * Authors: 11 * Alexander Aring <aar@pengutronix.de> 12 * 13 * Based on: net/wireless/nl80211.c 14 */ 15 16 #include <linux/rtnetlink.h> 17 18 #include <net/cfg802154.h> 19 #include <net/genetlink.h> 20 #include <net/mac802154.h> 21 #include <net/netlink.h> 22 #include <net/nl802154.h> 23 #include <net/sock.h> 24 25 #include "nl802154.h" 26 #include "rdev-ops.h" 27 #include "core.h" 28 29 /* the netlink family */ 30 static struct genl_family nl802154_fam; 31 32 /* multicast groups */ 33 enum nl802154_multicast_groups { 34 NL802154_MCGRP_CONFIG, 35 }; 36 37 static const struct genl_multicast_group nl802154_mcgrps[] = { 38 [NL802154_MCGRP_CONFIG] = { .name = "config", }, 39 }; 40 41 /* returns ERR_PTR values */ 42 static struct wpan_dev * 43 __cfg802154_wpan_dev_from_attrs(struct net *netns, struct nlattr **attrs) 44 { 45 struct cfg802154_registered_device *rdev; 46 struct wpan_dev *result = NULL; 47 bool have_ifidx = attrs[NL802154_ATTR_IFINDEX]; 48 bool have_wpan_dev_id = attrs[NL802154_ATTR_WPAN_DEV]; 49 u64 wpan_dev_id; 50 int wpan_phy_idx = -1; 51 int ifidx = -1; 52 53 ASSERT_RTNL(); 54 55 if (!have_ifidx && !have_wpan_dev_id) 56 return ERR_PTR(-EINVAL); 57 58 if (have_ifidx) 59 ifidx = nla_get_u32(attrs[NL802154_ATTR_IFINDEX]); 60 if (have_wpan_dev_id) { 61 wpan_dev_id = nla_get_u64(attrs[NL802154_ATTR_WPAN_DEV]); 62 wpan_phy_idx = wpan_dev_id >> 32; 63 } 64 65 list_for_each_entry(rdev, &cfg802154_rdev_list, list) { 66 struct wpan_dev *wpan_dev; 67 68 if (wpan_phy_net(&rdev->wpan_phy) != netns) 69 continue; 70 71 if (have_wpan_dev_id && rdev->wpan_phy_idx != wpan_phy_idx) 72 continue; 73 74 list_for_each_entry(wpan_dev, &rdev->wpan_dev_list, list) { 75 if (have_ifidx && wpan_dev->netdev && 76 wpan_dev->netdev->ifindex == ifidx) { 77 result = wpan_dev; 78 break; 79 } 80 if (have_wpan_dev_id && 81 wpan_dev->identifier == (u32)wpan_dev_id) { 82 result = wpan_dev; 83 break; 84 } 85 } 86 87 if (result) 88 break; 89 } 90 91 if (result) 92 return result; 93 94 return ERR_PTR(-ENODEV); 95 } 96 97 static struct cfg802154_registered_device * 98 __cfg802154_rdev_from_attrs(struct net *netns, struct nlattr **attrs) 99 { 100 struct cfg802154_registered_device *rdev = NULL, *tmp; 101 struct net_device *netdev; 102 103 ASSERT_RTNL(); 104 105 if (!attrs[NL802154_ATTR_WPAN_PHY] && 106 !attrs[NL802154_ATTR_IFINDEX] && 107 !attrs[NL802154_ATTR_WPAN_DEV]) 108 return ERR_PTR(-EINVAL); 109 110 if (attrs[NL802154_ATTR_WPAN_PHY]) 111 rdev = cfg802154_rdev_by_wpan_phy_idx( 112 nla_get_u32(attrs[NL802154_ATTR_WPAN_PHY])); 113 114 if (attrs[NL802154_ATTR_WPAN_DEV]) { 115 u64 wpan_dev_id = nla_get_u64(attrs[NL802154_ATTR_WPAN_DEV]); 116 struct wpan_dev *wpan_dev; 117 bool found = false; 118 119 tmp = cfg802154_rdev_by_wpan_phy_idx(wpan_dev_id >> 32); 120 if (tmp) { 121 /* make sure wpan_dev exists */ 122 list_for_each_entry(wpan_dev, &tmp->wpan_dev_list, list) { 123 if (wpan_dev->identifier != (u32)wpan_dev_id) 124 continue; 125 found = true; 126 break; 127 } 128 129 if (!found) 130 tmp = NULL; 131 132 if (rdev && tmp != rdev) 133 return ERR_PTR(-EINVAL); 134 rdev = tmp; 135 } 136 } 137 138 if (attrs[NL802154_ATTR_IFINDEX]) { 139 int ifindex = nla_get_u32(attrs[NL802154_ATTR_IFINDEX]); 140 141 netdev = __dev_get_by_index(netns, ifindex); 142 if (netdev) { 143 if (netdev->ieee802154_ptr) 144 tmp = wpan_phy_to_rdev( 145 netdev->ieee802154_ptr->wpan_phy); 146 else 147 tmp = NULL; 148 149 /* not wireless device -- return error */ 150 if (!tmp) 151 return ERR_PTR(-EINVAL); 152 153 /* mismatch -- return error */ 154 if (rdev && tmp != rdev) 155 return ERR_PTR(-EINVAL); 156 157 rdev = tmp; 158 } 159 } 160 161 if (!rdev) 162 return ERR_PTR(-ENODEV); 163 164 if (netns != wpan_phy_net(&rdev->wpan_phy)) 165 return ERR_PTR(-ENODEV); 166 167 return rdev; 168 } 169 170 /* This function returns a pointer to the driver 171 * that the genl_info item that is passed refers to. 172 * 173 * The result of this can be a PTR_ERR and hence must 174 * be checked with IS_ERR() for errors. 175 */ 176 static struct cfg802154_registered_device * 177 cfg802154_get_dev_from_info(struct net *netns, struct genl_info *info) 178 { 179 return __cfg802154_rdev_from_attrs(netns, info->attrs); 180 } 181 182 /* policy for the attributes */ 183 static const struct nla_policy nl802154_policy[NL802154_ATTR_MAX+1] = { 184 [NL802154_ATTR_WPAN_PHY] = { .type = NLA_U32 }, 185 [NL802154_ATTR_WPAN_PHY_NAME] = { .type = NLA_NUL_STRING, 186 .len = 20-1 }, 187 188 [NL802154_ATTR_IFINDEX] = { .type = NLA_U32 }, 189 [NL802154_ATTR_IFTYPE] = { .type = NLA_U32 }, 190 [NL802154_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 }, 191 192 [NL802154_ATTR_WPAN_DEV] = { .type = NLA_U64 }, 193 194 [NL802154_ATTR_PAGE] = { .type = NLA_U8, }, 195 [NL802154_ATTR_CHANNEL] = { .type = NLA_U8, }, 196 197 [NL802154_ATTR_TX_POWER] = { .type = NLA_S32, }, 198 199 [NL802154_ATTR_CCA_MODE] = { .type = NLA_U32, }, 200 [NL802154_ATTR_CCA_OPT] = { .type = NLA_U32, }, 201 [NL802154_ATTR_CCA_ED_LEVEL] = { .type = NLA_S32, }, 202 203 [NL802154_ATTR_SUPPORTED_CHANNEL] = { .type = NLA_U32, }, 204 205 [NL802154_ATTR_PAN_ID] = { .type = NLA_U16, }, 206 [NL802154_ATTR_EXTENDED_ADDR] = { .type = NLA_U64 }, 207 [NL802154_ATTR_SHORT_ADDR] = { .type = NLA_U16, }, 208 209 [NL802154_ATTR_MIN_BE] = { .type = NLA_U8, }, 210 [NL802154_ATTR_MAX_BE] = { .type = NLA_U8, }, 211 [NL802154_ATTR_MAX_CSMA_BACKOFFS] = { .type = NLA_U8, }, 212 213 [NL802154_ATTR_MAX_FRAME_RETRIES] = { .type = NLA_S8, }, 214 215 [NL802154_ATTR_LBT_MODE] = { .type = NLA_U8, }, 216 217 [NL802154_ATTR_WPAN_PHY_CAPS] = { .type = NLA_NESTED }, 218 219 [NL802154_ATTR_SUPPORTED_COMMANDS] = { .type = NLA_NESTED }, 220 221 [NL802154_ATTR_ACKREQ_DEFAULT] = { .type = NLA_U8 }, 222 223 [NL802154_ATTR_PID] = { .type = NLA_U32 }, 224 [NL802154_ATTR_NETNS_FD] = { .type = NLA_U32 }, 225 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL 226 [NL802154_ATTR_SEC_ENABLED] = { .type = NLA_U8, }, 227 [NL802154_ATTR_SEC_OUT_LEVEL] = { .type = NLA_U32, }, 228 [NL802154_ATTR_SEC_OUT_KEY_ID] = { .type = NLA_NESTED, }, 229 [NL802154_ATTR_SEC_FRAME_COUNTER] = { .type = NLA_U32 }, 230 231 [NL802154_ATTR_SEC_LEVEL] = { .type = NLA_NESTED }, 232 [NL802154_ATTR_SEC_DEVICE] = { .type = NLA_NESTED }, 233 [NL802154_ATTR_SEC_DEVKEY] = { .type = NLA_NESTED }, 234 [NL802154_ATTR_SEC_KEY] = { .type = NLA_NESTED }, 235 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */ 236 }; 237 238 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL 239 static int 240 nl802154_prepare_wpan_dev_dump(struct sk_buff *skb, 241 struct netlink_callback *cb, 242 struct cfg802154_registered_device **rdev, 243 struct wpan_dev **wpan_dev) 244 { 245 int err; 246 247 rtnl_lock(); 248 249 if (!cb->args[0]) { 250 err = nlmsg_parse_deprecated(cb->nlh, 251 GENL_HDRLEN + nl802154_fam.hdrsize, 252 genl_family_attrbuf(&nl802154_fam), 253 nl802154_fam.maxattr, 254 nl802154_policy, NULL); 255 if (err) 256 goto out_unlock; 257 258 *wpan_dev = __cfg802154_wpan_dev_from_attrs(sock_net(skb->sk), 259 genl_family_attrbuf(&nl802154_fam)); 260 if (IS_ERR(*wpan_dev)) { 261 err = PTR_ERR(*wpan_dev); 262 goto out_unlock; 263 } 264 *rdev = wpan_phy_to_rdev((*wpan_dev)->wpan_phy); 265 /* 0 is the first index - add 1 to parse only once */ 266 cb->args[0] = (*rdev)->wpan_phy_idx + 1; 267 cb->args[1] = (*wpan_dev)->identifier; 268 } else { 269 /* subtract the 1 again here */ 270 struct wpan_phy *wpan_phy = wpan_phy_idx_to_wpan_phy(cb->args[0] - 1); 271 struct wpan_dev *tmp; 272 273 if (!wpan_phy) { 274 err = -ENODEV; 275 goto out_unlock; 276 } 277 *rdev = wpan_phy_to_rdev(wpan_phy); 278 *wpan_dev = NULL; 279 280 list_for_each_entry(tmp, &(*rdev)->wpan_dev_list, list) { 281 if (tmp->identifier == cb->args[1]) { 282 *wpan_dev = tmp; 283 break; 284 } 285 } 286 287 if (!*wpan_dev) { 288 err = -ENODEV; 289 goto out_unlock; 290 } 291 } 292 293 return 0; 294 out_unlock: 295 rtnl_unlock(); 296 return err; 297 } 298 299 static void 300 nl802154_finish_wpan_dev_dump(struct cfg802154_registered_device *rdev) 301 { 302 rtnl_unlock(); 303 } 304 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */ 305 306 /* message building helper */ 307 static inline void *nl802154hdr_put(struct sk_buff *skb, u32 portid, u32 seq, 308 int flags, u8 cmd) 309 { 310 /* since there is no private header just add the generic one */ 311 return genlmsg_put(skb, portid, seq, &nl802154_fam, flags, cmd); 312 } 313 314 static int 315 nl802154_put_flags(struct sk_buff *msg, int attr, u32 mask) 316 { 317 struct nlattr *nl_flags = nla_nest_start_noflag(msg, attr); 318 int i; 319 320 if (!nl_flags) 321 return -ENOBUFS; 322 323 i = 0; 324 while (mask) { 325 if ((mask & 1) && nla_put_flag(msg, i)) 326 return -ENOBUFS; 327 328 mask >>= 1; 329 i++; 330 } 331 332 nla_nest_end(msg, nl_flags); 333 return 0; 334 } 335 336 static int 337 nl802154_send_wpan_phy_channels(struct cfg802154_registered_device *rdev, 338 struct sk_buff *msg) 339 { 340 struct nlattr *nl_page; 341 unsigned long page; 342 343 nl_page = nla_nest_start_noflag(msg, NL802154_ATTR_CHANNELS_SUPPORTED); 344 if (!nl_page) 345 return -ENOBUFS; 346 347 for (page = 0; page <= IEEE802154_MAX_PAGE; page++) { 348 if (nla_put_u32(msg, NL802154_ATTR_SUPPORTED_CHANNEL, 349 rdev->wpan_phy.supported.channels[page])) 350 return -ENOBUFS; 351 } 352 nla_nest_end(msg, nl_page); 353 354 return 0; 355 } 356 357 static int 358 nl802154_put_capabilities(struct sk_buff *msg, 359 struct cfg802154_registered_device *rdev) 360 { 361 const struct wpan_phy_supported *caps = &rdev->wpan_phy.supported; 362 struct nlattr *nl_caps, *nl_channels; 363 int i; 364 365 nl_caps = nla_nest_start_noflag(msg, NL802154_ATTR_WPAN_PHY_CAPS); 366 if (!nl_caps) 367 return -ENOBUFS; 368 369 nl_channels = nla_nest_start_noflag(msg, NL802154_CAP_ATTR_CHANNELS); 370 if (!nl_channels) 371 return -ENOBUFS; 372 373 for (i = 0; i <= IEEE802154_MAX_PAGE; i++) { 374 if (caps->channels[i]) { 375 if (nl802154_put_flags(msg, i, caps->channels[i])) 376 return -ENOBUFS; 377 } 378 } 379 380 nla_nest_end(msg, nl_channels); 381 382 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL) { 383 struct nlattr *nl_ed_lvls; 384 385 nl_ed_lvls = nla_nest_start_noflag(msg, 386 NL802154_CAP_ATTR_CCA_ED_LEVELS); 387 if (!nl_ed_lvls) 388 return -ENOBUFS; 389 390 for (i = 0; i < caps->cca_ed_levels_size; i++) { 391 if (nla_put_s32(msg, i, caps->cca_ed_levels[i])) 392 return -ENOBUFS; 393 } 394 395 nla_nest_end(msg, nl_ed_lvls); 396 } 397 398 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER) { 399 struct nlattr *nl_tx_pwrs; 400 401 nl_tx_pwrs = nla_nest_start_noflag(msg, 402 NL802154_CAP_ATTR_TX_POWERS); 403 if (!nl_tx_pwrs) 404 return -ENOBUFS; 405 406 for (i = 0; i < caps->tx_powers_size; i++) { 407 if (nla_put_s32(msg, i, caps->tx_powers[i])) 408 return -ENOBUFS; 409 } 410 411 nla_nest_end(msg, nl_tx_pwrs); 412 } 413 414 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE) { 415 if (nl802154_put_flags(msg, NL802154_CAP_ATTR_CCA_MODES, 416 caps->cca_modes) || 417 nl802154_put_flags(msg, NL802154_CAP_ATTR_CCA_OPTS, 418 caps->cca_opts)) 419 return -ENOBUFS; 420 } 421 422 if (nla_put_u8(msg, NL802154_CAP_ATTR_MIN_MINBE, caps->min_minbe) || 423 nla_put_u8(msg, NL802154_CAP_ATTR_MAX_MINBE, caps->max_minbe) || 424 nla_put_u8(msg, NL802154_CAP_ATTR_MIN_MAXBE, caps->min_maxbe) || 425 nla_put_u8(msg, NL802154_CAP_ATTR_MAX_MAXBE, caps->max_maxbe) || 426 nla_put_u8(msg, NL802154_CAP_ATTR_MIN_CSMA_BACKOFFS, 427 caps->min_csma_backoffs) || 428 nla_put_u8(msg, NL802154_CAP_ATTR_MAX_CSMA_BACKOFFS, 429 caps->max_csma_backoffs) || 430 nla_put_s8(msg, NL802154_CAP_ATTR_MIN_FRAME_RETRIES, 431 caps->min_frame_retries) || 432 nla_put_s8(msg, NL802154_CAP_ATTR_MAX_FRAME_RETRIES, 433 caps->max_frame_retries) || 434 nl802154_put_flags(msg, NL802154_CAP_ATTR_IFTYPES, 435 caps->iftypes) || 436 nla_put_u32(msg, NL802154_CAP_ATTR_LBT, caps->lbt)) 437 return -ENOBUFS; 438 439 nla_nest_end(msg, nl_caps); 440 441 return 0; 442 } 443 444 static int nl802154_send_wpan_phy(struct cfg802154_registered_device *rdev, 445 enum nl802154_commands cmd, 446 struct sk_buff *msg, u32 portid, u32 seq, 447 int flags) 448 { 449 struct nlattr *nl_cmds; 450 void *hdr; 451 int i; 452 453 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd); 454 if (!hdr) 455 return -ENOBUFS; 456 457 if (nla_put_u32(msg, NL802154_ATTR_WPAN_PHY, rdev->wpan_phy_idx) || 458 nla_put_string(msg, NL802154_ATTR_WPAN_PHY_NAME, 459 wpan_phy_name(&rdev->wpan_phy)) || 460 nla_put_u32(msg, NL802154_ATTR_GENERATION, 461 cfg802154_rdev_list_generation)) 462 goto nla_put_failure; 463 464 if (cmd != NL802154_CMD_NEW_WPAN_PHY) 465 goto finish; 466 467 /* DUMP PHY PIB */ 468 469 /* current channel settings */ 470 if (nla_put_u8(msg, NL802154_ATTR_PAGE, 471 rdev->wpan_phy.current_page) || 472 nla_put_u8(msg, NL802154_ATTR_CHANNEL, 473 rdev->wpan_phy.current_channel)) 474 goto nla_put_failure; 475 476 /* TODO remove this behaviour, we still keep support it for a while 477 * so users can change the behaviour to the new one. 478 */ 479 if (nl802154_send_wpan_phy_channels(rdev, msg)) 480 goto nla_put_failure; 481 482 /* cca mode */ 483 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE) { 484 if (nla_put_u32(msg, NL802154_ATTR_CCA_MODE, 485 rdev->wpan_phy.cca.mode)) 486 goto nla_put_failure; 487 488 if (rdev->wpan_phy.cca.mode == NL802154_CCA_ENERGY_CARRIER) { 489 if (nla_put_u32(msg, NL802154_ATTR_CCA_OPT, 490 rdev->wpan_phy.cca.opt)) 491 goto nla_put_failure; 492 } 493 } 494 495 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER) { 496 if (nla_put_s32(msg, NL802154_ATTR_TX_POWER, 497 rdev->wpan_phy.transmit_power)) 498 goto nla_put_failure; 499 } 500 501 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL) { 502 if (nla_put_s32(msg, NL802154_ATTR_CCA_ED_LEVEL, 503 rdev->wpan_phy.cca_ed_level)) 504 goto nla_put_failure; 505 } 506 507 if (nl802154_put_capabilities(msg, rdev)) 508 goto nla_put_failure; 509 510 nl_cmds = nla_nest_start_noflag(msg, NL802154_ATTR_SUPPORTED_COMMANDS); 511 if (!nl_cmds) 512 goto nla_put_failure; 513 514 i = 0; 515 #define CMD(op, n) \ 516 do { \ 517 if (rdev->ops->op) { \ 518 i++; \ 519 if (nla_put_u32(msg, i, NL802154_CMD_ ## n)) \ 520 goto nla_put_failure; \ 521 } \ 522 } while (0) 523 524 CMD(add_virtual_intf, NEW_INTERFACE); 525 CMD(del_virtual_intf, DEL_INTERFACE); 526 CMD(set_channel, SET_CHANNEL); 527 CMD(set_pan_id, SET_PAN_ID); 528 CMD(set_short_addr, SET_SHORT_ADDR); 529 CMD(set_backoff_exponent, SET_BACKOFF_EXPONENT); 530 CMD(set_max_csma_backoffs, SET_MAX_CSMA_BACKOFFS); 531 CMD(set_max_frame_retries, SET_MAX_FRAME_RETRIES); 532 CMD(set_lbt_mode, SET_LBT_MODE); 533 CMD(set_ackreq_default, SET_ACKREQ_DEFAULT); 534 535 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER) 536 CMD(set_tx_power, SET_TX_POWER); 537 538 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL) 539 CMD(set_cca_ed_level, SET_CCA_ED_LEVEL); 540 541 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE) 542 CMD(set_cca_mode, SET_CCA_MODE); 543 544 #undef CMD 545 nla_nest_end(msg, nl_cmds); 546 547 finish: 548 genlmsg_end(msg, hdr); 549 return 0; 550 551 nla_put_failure: 552 genlmsg_cancel(msg, hdr); 553 return -EMSGSIZE; 554 } 555 556 struct nl802154_dump_wpan_phy_state { 557 s64 filter_wpan_phy; 558 long start; 559 560 }; 561 562 static int nl802154_dump_wpan_phy_parse(struct sk_buff *skb, 563 struct netlink_callback *cb, 564 struct nl802154_dump_wpan_phy_state *state) 565 { 566 struct nlattr **tb = genl_family_attrbuf(&nl802154_fam); 567 int ret = nlmsg_parse_deprecated(cb->nlh, 568 GENL_HDRLEN + nl802154_fam.hdrsize, 569 tb, nl802154_fam.maxattr, 570 nl802154_policy, NULL); 571 572 /* TODO check if we can handle error here, 573 * we have no backward compatibility 574 */ 575 if (ret) 576 return 0; 577 578 if (tb[NL802154_ATTR_WPAN_PHY]) 579 state->filter_wpan_phy = nla_get_u32(tb[NL802154_ATTR_WPAN_PHY]); 580 if (tb[NL802154_ATTR_WPAN_DEV]) 581 state->filter_wpan_phy = nla_get_u64(tb[NL802154_ATTR_WPAN_DEV]) >> 32; 582 if (tb[NL802154_ATTR_IFINDEX]) { 583 struct net_device *netdev; 584 struct cfg802154_registered_device *rdev; 585 int ifidx = nla_get_u32(tb[NL802154_ATTR_IFINDEX]); 586 587 netdev = __dev_get_by_index(&init_net, ifidx); 588 if (!netdev) 589 return -ENODEV; 590 if (netdev->ieee802154_ptr) { 591 rdev = wpan_phy_to_rdev( 592 netdev->ieee802154_ptr->wpan_phy); 593 state->filter_wpan_phy = rdev->wpan_phy_idx; 594 } 595 } 596 597 return 0; 598 } 599 600 static int 601 nl802154_dump_wpan_phy(struct sk_buff *skb, struct netlink_callback *cb) 602 { 603 int idx = 0, ret; 604 struct nl802154_dump_wpan_phy_state *state = (void *)cb->args[0]; 605 struct cfg802154_registered_device *rdev; 606 607 rtnl_lock(); 608 if (!state) { 609 state = kzalloc(sizeof(*state), GFP_KERNEL); 610 if (!state) { 611 rtnl_unlock(); 612 return -ENOMEM; 613 } 614 state->filter_wpan_phy = -1; 615 ret = nl802154_dump_wpan_phy_parse(skb, cb, state); 616 if (ret) { 617 kfree(state); 618 rtnl_unlock(); 619 return ret; 620 } 621 cb->args[0] = (long)state; 622 } 623 624 list_for_each_entry(rdev, &cfg802154_rdev_list, list) { 625 if (!net_eq(wpan_phy_net(&rdev->wpan_phy), sock_net(skb->sk))) 626 continue; 627 if (++idx <= state->start) 628 continue; 629 if (state->filter_wpan_phy != -1 && 630 state->filter_wpan_phy != rdev->wpan_phy_idx) 631 continue; 632 /* attempt to fit multiple wpan_phy data chunks into the skb */ 633 ret = nl802154_send_wpan_phy(rdev, 634 NL802154_CMD_NEW_WPAN_PHY, 635 skb, 636 NETLINK_CB(cb->skb).portid, 637 cb->nlh->nlmsg_seq, NLM_F_MULTI); 638 if (ret < 0) { 639 if ((ret == -ENOBUFS || ret == -EMSGSIZE) && 640 !skb->len && cb->min_dump_alloc < 4096) { 641 cb->min_dump_alloc = 4096; 642 rtnl_unlock(); 643 return 1; 644 } 645 idx--; 646 break; 647 } 648 break; 649 } 650 rtnl_unlock(); 651 652 state->start = idx; 653 654 return skb->len; 655 } 656 657 static int nl802154_dump_wpan_phy_done(struct netlink_callback *cb) 658 { 659 kfree((void *)cb->args[0]); 660 return 0; 661 } 662 663 static int nl802154_get_wpan_phy(struct sk_buff *skb, struct genl_info *info) 664 { 665 struct sk_buff *msg; 666 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 667 668 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); 669 if (!msg) 670 return -ENOMEM; 671 672 if (nl802154_send_wpan_phy(rdev, NL802154_CMD_NEW_WPAN_PHY, msg, 673 info->snd_portid, info->snd_seq, 0) < 0) { 674 nlmsg_free(msg); 675 return -ENOBUFS; 676 } 677 678 return genlmsg_reply(msg, info); 679 } 680 681 static inline u64 wpan_dev_id(struct wpan_dev *wpan_dev) 682 { 683 return (u64)wpan_dev->identifier | 684 ((u64)wpan_phy_to_rdev(wpan_dev->wpan_phy)->wpan_phy_idx << 32); 685 } 686 687 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL 688 #include <net/ieee802154_netdev.h> 689 690 static int 691 ieee802154_llsec_send_key_id(struct sk_buff *msg, 692 const struct ieee802154_llsec_key_id *desc) 693 { 694 struct nlattr *nl_dev_addr; 695 696 if (nla_put_u32(msg, NL802154_KEY_ID_ATTR_MODE, desc->mode)) 697 return -ENOBUFS; 698 699 switch (desc->mode) { 700 case NL802154_KEY_ID_MODE_IMPLICIT: 701 nl_dev_addr = nla_nest_start_noflag(msg, 702 NL802154_KEY_ID_ATTR_IMPLICIT); 703 if (!nl_dev_addr) 704 return -ENOBUFS; 705 706 if (nla_put_le16(msg, NL802154_DEV_ADDR_ATTR_PAN_ID, 707 desc->device_addr.pan_id) || 708 nla_put_u32(msg, NL802154_DEV_ADDR_ATTR_MODE, 709 desc->device_addr.mode)) 710 return -ENOBUFS; 711 712 switch (desc->device_addr.mode) { 713 case NL802154_DEV_ADDR_SHORT: 714 if (nla_put_le16(msg, NL802154_DEV_ADDR_ATTR_SHORT, 715 desc->device_addr.short_addr)) 716 return -ENOBUFS; 717 break; 718 case NL802154_DEV_ADDR_EXTENDED: 719 if (nla_put_le64(msg, NL802154_DEV_ADDR_ATTR_EXTENDED, 720 desc->device_addr.extended_addr, 721 NL802154_DEV_ADDR_ATTR_PAD)) 722 return -ENOBUFS; 723 break; 724 default: 725 /* userspace should handle unknown */ 726 break; 727 } 728 729 nla_nest_end(msg, nl_dev_addr); 730 break; 731 case NL802154_KEY_ID_MODE_INDEX: 732 break; 733 case NL802154_KEY_ID_MODE_INDEX_SHORT: 734 /* TODO renmae short_source? */ 735 if (nla_put_le32(msg, NL802154_KEY_ID_ATTR_SOURCE_SHORT, 736 desc->short_source)) 737 return -ENOBUFS; 738 break; 739 case NL802154_KEY_ID_MODE_INDEX_EXTENDED: 740 if (nla_put_le64(msg, NL802154_KEY_ID_ATTR_SOURCE_EXTENDED, 741 desc->extended_source, 742 NL802154_KEY_ID_ATTR_PAD)) 743 return -ENOBUFS; 744 break; 745 default: 746 /* userspace should handle unknown */ 747 break; 748 } 749 750 /* TODO key_id to key_idx ? Check naming */ 751 if (desc->mode != NL802154_KEY_ID_MODE_IMPLICIT) { 752 if (nla_put_u8(msg, NL802154_KEY_ID_ATTR_INDEX, desc->id)) 753 return -ENOBUFS; 754 } 755 756 return 0; 757 } 758 759 static int nl802154_get_llsec_params(struct sk_buff *msg, 760 struct cfg802154_registered_device *rdev, 761 struct wpan_dev *wpan_dev) 762 { 763 struct nlattr *nl_key_id; 764 struct ieee802154_llsec_params params; 765 int ret; 766 767 ret = rdev_get_llsec_params(rdev, wpan_dev, ¶ms); 768 if (ret < 0) 769 return ret; 770 771 if (nla_put_u8(msg, NL802154_ATTR_SEC_ENABLED, params.enabled) || 772 nla_put_u32(msg, NL802154_ATTR_SEC_OUT_LEVEL, params.out_level) || 773 nla_put_be32(msg, NL802154_ATTR_SEC_FRAME_COUNTER, 774 params.frame_counter)) 775 return -ENOBUFS; 776 777 nl_key_id = nla_nest_start_noflag(msg, NL802154_ATTR_SEC_OUT_KEY_ID); 778 if (!nl_key_id) 779 return -ENOBUFS; 780 781 ret = ieee802154_llsec_send_key_id(msg, ¶ms.out_key); 782 if (ret < 0) 783 return ret; 784 785 nla_nest_end(msg, nl_key_id); 786 787 return 0; 788 } 789 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */ 790 791 static int 792 nl802154_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags, 793 struct cfg802154_registered_device *rdev, 794 struct wpan_dev *wpan_dev) 795 { 796 struct net_device *dev = wpan_dev->netdev; 797 void *hdr; 798 799 hdr = nl802154hdr_put(msg, portid, seq, flags, 800 NL802154_CMD_NEW_INTERFACE); 801 if (!hdr) 802 return -1; 803 804 if (dev && 805 (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex) || 806 nla_put_string(msg, NL802154_ATTR_IFNAME, dev->name))) 807 goto nla_put_failure; 808 809 if (nla_put_u32(msg, NL802154_ATTR_WPAN_PHY, rdev->wpan_phy_idx) || 810 nla_put_u32(msg, NL802154_ATTR_IFTYPE, wpan_dev->iftype) || 811 nla_put_u64_64bit(msg, NL802154_ATTR_WPAN_DEV, 812 wpan_dev_id(wpan_dev), NL802154_ATTR_PAD) || 813 nla_put_u32(msg, NL802154_ATTR_GENERATION, 814 rdev->devlist_generation ^ 815 (cfg802154_rdev_list_generation << 2))) 816 goto nla_put_failure; 817 818 /* address settings */ 819 if (nla_put_le64(msg, NL802154_ATTR_EXTENDED_ADDR, 820 wpan_dev->extended_addr, 821 NL802154_ATTR_PAD) || 822 nla_put_le16(msg, NL802154_ATTR_SHORT_ADDR, 823 wpan_dev->short_addr) || 824 nla_put_le16(msg, NL802154_ATTR_PAN_ID, wpan_dev->pan_id)) 825 goto nla_put_failure; 826 827 /* ARET handling */ 828 if (nla_put_s8(msg, NL802154_ATTR_MAX_FRAME_RETRIES, 829 wpan_dev->frame_retries) || 830 nla_put_u8(msg, NL802154_ATTR_MAX_BE, wpan_dev->max_be) || 831 nla_put_u8(msg, NL802154_ATTR_MAX_CSMA_BACKOFFS, 832 wpan_dev->csma_retries) || 833 nla_put_u8(msg, NL802154_ATTR_MIN_BE, wpan_dev->min_be)) 834 goto nla_put_failure; 835 836 /* listen before transmit */ 837 if (nla_put_u8(msg, NL802154_ATTR_LBT_MODE, wpan_dev->lbt)) 838 goto nla_put_failure; 839 840 /* ackreq default behaviour */ 841 if (nla_put_u8(msg, NL802154_ATTR_ACKREQ_DEFAULT, wpan_dev->ackreq)) 842 goto nla_put_failure; 843 844 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL 845 if (nl802154_get_llsec_params(msg, rdev, wpan_dev) < 0) 846 goto nla_put_failure; 847 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */ 848 849 genlmsg_end(msg, hdr); 850 return 0; 851 852 nla_put_failure: 853 genlmsg_cancel(msg, hdr); 854 return -EMSGSIZE; 855 } 856 857 static int 858 nl802154_dump_interface(struct sk_buff *skb, struct netlink_callback *cb) 859 { 860 int wp_idx = 0; 861 int if_idx = 0; 862 int wp_start = cb->args[0]; 863 int if_start = cb->args[1]; 864 struct cfg802154_registered_device *rdev; 865 struct wpan_dev *wpan_dev; 866 867 rtnl_lock(); 868 list_for_each_entry(rdev, &cfg802154_rdev_list, list) { 869 if (!net_eq(wpan_phy_net(&rdev->wpan_phy), sock_net(skb->sk))) 870 continue; 871 if (wp_idx < wp_start) { 872 wp_idx++; 873 continue; 874 } 875 if_idx = 0; 876 877 list_for_each_entry(wpan_dev, &rdev->wpan_dev_list, list) { 878 if (if_idx < if_start) { 879 if_idx++; 880 continue; 881 } 882 if (nl802154_send_iface(skb, NETLINK_CB(cb->skb).portid, 883 cb->nlh->nlmsg_seq, NLM_F_MULTI, 884 rdev, wpan_dev) < 0) { 885 goto out; 886 } 887 if_idx++; 888 } 889 890 wp_idx++; 891 } 892 out: 893 rtnl_unlock(); 894 895 cb->args[0] = wp_idx; 896 cb->args[1] = if_idx; 897 898 return skb->len; 899 } 900 901 static int nl802154_get_interface(struct sk_buff *skb, struct genl_info *info) 902 { 903 struct sk_buff *msg; 904 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 905 struct wpan_dev *wdev = info->user_ptr[1]; 906 907 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); 908 if (!msg) 909 return -ENOMEM; 910 911 if (nl802154_send_iface(msg, info->snd_portid, info->snd_seq, 0, 912 rdev, wdev) < 0) { 913 nlmsg_free(msg); 914 return -ENOBUFS; 915 } 916 917 return genlmsg_reply(msg, info); 918 } 919 920 static int nl802154_new_interface(struct sk_buff *skb, struct genl_info *info) 921 { 922 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 923 enum nl802154_iftype type = NL802154_IFTYPE_UNSPEC; 924 __le64 extended_addr = cpu_to_le64(0x0000000000000000ULL); 925 926 /* TODO avoid failing a new interface 927 * creation due to pending removal? 928 */ 929 930 if (!info->attrs[NL802154_ATTR_IFNAME]) 931 return -EINVAL; 932 933 if (info->attrs[NL802154_ATTR_IFTYPE]) { 934 type = nla_get_u32(info->attrs[NL802154_ATTR_IFTYPE]); 935 if (type > NL802154_IFTYPE_MAX || 936 !(rdev->wpan_phy.supported.iftypes & BIT(type))) 937 return -EINVAL; 938 } 939 940 if (info->attrs[NL802154_ATTR_EXTENDED_ADDR]) 941 extended_addr = nla_get_le64(info->attrs[NL802154_ATTR_EXTENDED_ADDR]); 942 943 if (!rdev->ops->add_virtual_intf) 944 return -EOPNOTSUPP; 945 946 return rdev_add_virtual_intf(rdev, 947 nla_data(info->attrs[NL802154_ATTR_IFNAME]), 948 NET_NAME_USER, type, extended_addr); 949 } 950 951 static int nl802154_del_interface(struct sk_buff *skb, struct genl_info *info) 952 { 953 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 954 struct wpan_dev *wpan_dev = info->user_ptr[1]; 955 956 if (!rdev->ops->del_virtual_intf) 957 return -EOPNOTSUPP; 958 959 /* If we remove a wpan device without a netdev then clear 960 * user_ptr[1] so that nl802154_post_doit won't dereference it 961 * to check if it needs to do dev_put(). Otherwise it crashes 962 * since the wpan_dev has been freed, unlike with a netdev where 963 * we need the dev_put() for the netdev to really be freed. 964 */ 965 if (!wpan_dev->netdev) 966 info->user_ptr[1] = NULL; 967 968 return rdev_del_virtual_intf(rdev, wpan_dev); 969 } 970 971 static int nl802154_set_channel(struct sk_buff *skb, struct genl_info *info) 972 { 973 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 974 u8 channel, page; 975 976 if (!info->attrs[NL802154_ATTR_PAGE] || 977 !info->attrs[NL802154_ATTR_CHANNEL]) 978 return -EINVAL; 979 980 page = nla_get_u8(info->attrs[NL802154_ATTR_PAGE]); 981 channel = nla_get_u8(info->attrs[NL802154_ATTR_CHANNEL]); 982 983 /* check 802.15.4 constraints */ 984 if (page > IEEE802154_MAX_PAGE || channel > IEEE802154_MAX_CHANNEL || 985 !(rdev->wpan_phy.supported.channels[page] & BIT(channel))) 986 return -EINVAL; 987 988 return rdev_set_channel(rdev, page, channel); 989 } 990 991 static int nl802154_set_cca_mode(struct sk_buff *skb, struct genl_info *info) 992 { 993 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 994 struct wpan_phy_cca cca; 995 996 if (!(rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE)) 997 return -EOPNOTSUPP; 998 999 if (!info->attrs[NL802154_ATTR_CCA_MODE]) 1000 return -EINVAL; 1001 1002 cca.mode = nla_get_u32(info->attrs[NL802154_ATTR_CCA_MODE]); 1003 /* checking 802.15.4 constraints */ 1004 if (cca.mode < NL802154_CCA_ENERGY || 1005 cca.mode > NL802154_CCA_ATTR_MAX || 1006 !(rdev->wpan_phy.supported.cca_modes & BIT(cca.mode))) 1007 return -EINVAL; 1008 1009 if (cca.mode == NL802154_CCA_ENERGY_CARRIER) { 1010 if (!info->attrs[NL802154_ATTR_CCA_OPT]) 1011 return -EINVAL; 1012 1013 cca.opt = nla_get_u32(info->attrs[NL802154_ATTR_CCA_OPT]); 1014 if (cca.opt > NL802154_CCA_OPT_ATTR_MAX || 1015 !(rdev->wpan_phy.supported.cca_opts & BIT(cca.opt))) 1016 return -EINVAL; 1017 } 1018 1019 return rdev_set_cca_mode(rdev, &cca); 1020 } 1021 1022 static int nl802154_set_cca_ed_level(struct sk_buff *skb, struct genl_info *info) 1023 { 1024 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1025 s32 ed_level; 1026 int i; 1027 1028 if (!(rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL)) 1029 return -EOPNOTSUPP; 1030 1031 if (!info->attrs[NL802154_ATTR_CCA_ED_LEVEL]) 1032 return -EINVAL; 1033 1034 ed_level = nla_get_s32(info->attrs[NL802154_ATTR_CCA_ED_LEVEL]); 1035 1036 for (i = 0; i < rdev->wpan_phy.supported.cca_ed_levels_size; i++) { 1037 if (ed_level == rdev->wpan_phy.supported.cca_ed_levels[i]) 1038 return rdev_set_cca_ed_level(rdev, ed_level); 1039 } 1040 1041 return -EINVAL; 1042 } 1043 1044 static int nl802154_set_tx_power(struct sk_buff *skb, struct genl_info *info) 1045 { 1046 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1047 s32 power; 1048 int i; 1049 1050 if (!(rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER)) 1051 return -EOPNOTSUPP; 1052 1053 if (!info->attrs[NL802154_ATTR_TX_POWER]) 1054 return -EINVAL; 1055 1056 power = nla_get_s32(info->attrs[NL802154_ATTR_TX_POWER]); 1057 1058 for (i = 0; i < rdev->wpan_phy.supported.tx_powers_size; i++) { 1059 if (power == rdev->wpan_phy.supported.tx_powers[i]) 1060 return rdev_set_tx_power(rdev, power); 1061 } 1062 1063 return -EINVAL; 1064 } 1065 1066 static int nl802154_set_pan_id(struct sk_buff *skb, struct genl_info *info) 1067 { 1068 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1069 struct net_device *dev = info->user_ptr[1]; 1070 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1071 __le16 pan_id; 1072 1073 /* conflict here while tx/rx calls */ 1074 if (netif_running(dev)) 1075 return -EBUSY; 1076 1077 if (wpan_dev->lowpan_dev) { 1078 if (netif_running(wpan_dev->lowpan_dev)) 1079 return -EBUSY; 1080 } 1081 1082 /* don't change address fields on monitor */ 1083 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR || 1084 !info->attrs[NL802154_ATTR_PAN_ID]) 1085 return -EINVAL; 1086 1087 pan_id = nla_get_le16(info->attrs[NL802154_ATTR_PAN_ID]); 1088 1089 /* TODO 1090 * I am not sure about to check here on broadcast pan_id. 1091 * Broadcast is a valid setting, comment from 802.15.4: 1092 * If this value is 0xffff, the device is not associated. 1093 * 1094 * This could useful to simple deassociate an device. 1095 */ 1096 if (pan_id == cpu_to_le16(IEEE802154_PAN_ID_BROADCAST)) 1097 return -EINVAL; 1098 1099 return rdev_set_pan_id(rdev, wpan_dev, pan_id); 1100 } 1101 1102 static int nl802154_set_short_addr(struct sk_buff *skb, struct genl_info *info) 1103 { 1104 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1105 struct net_device *dev = info->user_ptr[1]; 1106 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1107 __le16 short_addr; 1108 1109 /* conflict here while tx/rx calls */ 1110 if (netif_running(dev)) 1111 return -EBUSY; 1112 1113 if (wpan_dev->lowpan_dev) { 1114 if (netif_running(wpan_dev->lowpan_dev)) 1115 return -EBUSY; 1116 } 1117 1118 /* don't change address fields on monitor */ 1119 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR || 1120 !info->attrs[NL802154_ATTR_SHORT_ADDR]) 1121 return -EINVAL; 1122 1123 short_addr = nla_get_le16(info->attrs[NL802154_ATTR_SHORT_ADDR]); 1124 1125 /* TODO 1126 * I am not sure about to check here on broadcast short_addr. 1127 * Broadcast is a valid setting, comment from 802.15.4: 1128 * A value of 0xfffe indicates that the device has 1129 * associated but has not been allocated an address. A 1130 * value of 0xffff indicates that the device does not 1131 * have a short address. 1132 * 1133 * I think we should allow to set these settings but 1134 * don't allow to allow socket communication with it. 1135 */ 1136 if (short_addr == cpu_to_le16(IEEE802154_ADDR_SHORT_UNSPEC) || 1137 short_addr == cpu_to_le16(IEEE802154_ADDR_SHORT_BROADCAST)) 1138 return -EINVAL; 1139 1140 return rdev_set_short_addr(rdev, wpan_dev, short_addr); 1141 } 1142 1143 static int 1144 nl802154_set_backoff_exponent(struct sk_buff *skb, struct genl_info *info) 1145 { 1146 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1147 struct net_device *dev = info->user_ptr[1]; 1148 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1149 u8 min_be, max_be; 1150 1151 /* should be set on netif open inside phy settings */ 1152 if (netif_running(dev)) 1153 return -EBUSY; 1154 1155 if (!info->attrs[NL802154_ATTR_MIN_BE] || 1156 !info->attrs[NL802154_ATTR_MAX_BE]) 1157 return -EINVAL; 1158 1159 min_be = nla_get_u8(info->attrs[NL802154_ATTR_MIN_BE]); 1160 max_be = nla_get_u8(info->attrs[NL802154_ATTR_MAX_BE]); 1161 1162 /* check 802.15.4 constraints */ 1163 if (min_be < rdev->wpan_phy.supported.min_minbe || 1164 min_be > rdev->wpan_phy.supported.max_minbe || 1165 max_be < rdev->wpan_phy.supported.min_maxbe || 1166 max_be > rdev->wpan_phy.supported.max_maxbe || 1167 min_be > max_be) 1168 return -EINVAL; 1169 1170 return rdev_set_backoff_exponent(rdev, wpan_dev, min_be, max_be); 1171 } 1172 1173 static int 1174 nl802154_set_max_csma_backoffs(struct sk_buff *skb, struct genl_info *info) 1175 { 1176 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1177 struct net_device *dev = info->user_ptr[1]; 1178 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1179 u8 max_csma_backoffs; 1180 1181 /* conflict here while other running iface settings */ 1182 if (netif_running(dev)) 1183 return -EBUSY; 1184 1185 if (!info->attrs[NL802154_ATTR_MAX_CSMA_BACKOFFS]) 1186 return -EINVAL; 1187 1188 max_csma_backoffs = nla_get_u8( 1189 info->attrs[NL802154_ATTR_MAX_CSMA_BACKOFFS]); 1190 1191 /* check 802.15.4 constraints */ 1192 if (max_csma_backoffs < rdev->wpan_phy.supported.min_csma_backoffs || 1193 max_csma_backoffs > rdev->wpan_phy.supported.max_csma_backoffs) 1194 return -EINVAL; 1195 1196 return rdev_set_max_csma_backoffs(rdev, wpan_dev, max_csma_backoffs); 1197 } 1198 1199 static int 1200 nl802154_set_max_frame_retries(struct sk_buff *skb, struct genl_info *info) 1201 { 1202 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1203 struct net_device *dev = info->user_ptr[1]; 1204 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1205 s8 max_frame_retries; 1206 1207 if (netif_running(dev)) 1208 return -EBUSY; 1209 1210 if (!info->attrs[NL802154_ATTR_MAX_FRAME_RETRIES]) 1211 return -EINVAL; 1212 1213 max_frame_retries = nla_get_s8( 1214 info->attrs[NL802154_ATTR_MAX_FRAME_RETRIES]); 1215 1216 /* check 802.15.4 constraints */ 1217 if (max_frame_retries < rdev->wpan_phy.supported.min_frame_retries || 1218 max_frame_retries > rdev->wpan_phy.supported.max_frame_retries) 1219 return -EINVAL; 1220 1221 return rdev_set_max_frame_retries(rdev, wpan_dev, max_frame_retries); 1222 } 1223 1224 static int nl802154_set_lbt_mode(struct sk_buff *skb, struct genl_info *info) 1225 { 1226 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1227 struct net_device *dev = info->user_ptr[1]; 1228 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1229 int mode; 1230 1231 if (netif_running(dev)) 1232 return -EBUSY; 1233 1234 if (!info->attrs[NL802154_ATTR_LBT_MODE]) 1235 return -EINVAL; 1236 1237 mode = nla_get_u8(info->attrs[NL802154_ATTR_LBT_MODE]); 1238 1239 if (mode != 0 && mode != 1) 1240 return -EINVAL; 1241 1242 if (!wpan_phy_supported_bool(mode, rdev->wpan_phy.supported.lbt)) 1243 return -EINVAL; 1244 1245 return rdev_set_lbt_mode(rdev, wpan_dev, mode); 1246 } 1247 1248 static int 1249 nl802154_set_ackreq_default(struct sk_buff *skb, struct genl_info *info) 1250 { 1251 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1252 struct net_device *dev = info->user_ptr[1]; 1253 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1254 int ackreq; 1255 1256 if (netif_running(dev)) 1257 return -EBUSY; 1258 1259 if (!info->attrs[NL802154_ATTR_ACKREQ_DEFAULT]) 1260 return -EINVAL; 1261 1262 ackreq = nla_get_u8(info->attrs[NL802154_ATTR_ACKREQ_DEFAULT]); 1263 1264 if (ackreq != 0 && ackreq != 1) 1265 return -EINVAL; 1266 1267 return rdev_set_ackreq_default(rdev, wpan_dev, ackreq); 1268 } 1269 1270 static int nl802154_wpan_phy_netns(struct sk_buff *skb, struct genl_info *info) 1271 { 1272 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1273 struct net *net; 1274 int err; 1275 1276 if (info->attrs[NL802154_ATTR_PID]) { 1277 u32 pid = nla_get_u32(info->attrs[NL802154_ATTR_PID]); 1278 1279 net = get_net_ns_by_pid(pid); 1280 } else if (info->attrs[NL802154_ATTR_NETNS_FD]) { 1281 u32 fd = nla_get_u32(info->attrs[NL802154_ATTR_NETNS_FD]); 1282 1283 net = get_net_ns_by_fd(fd); 1284 } else { 1285 return -EINVAL; 1286 } 1287 1288 if (IS_ERR(net)) 1289 return PTR_ERR(net); 1290 1291 err = 0; 1292 1293 /* check if anything to do */ 1294 if (!net_eq(wpan_phy_net(&rdev->wpan_phy), net)) 1295 err = cfg802154_switch_netns(rdev, net); 1296 1297 put_net(net); 1298 return err; 1299 } 1300 1301 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL 1302 static const struct nla_policy nl802154_dev_addr_policy[NL802154_DEV_ADDR_ATTR_MAX + 1] = { 1303 [NL802154_DEV_ADDR_ATTR_PAN_ID] = { .type = NLA_U16 }, 1304 [NL802154_DEV_ADDR_ATTR_MODE] = { .type = NLA_U32 }, 1305 [NL802154_DEV_ADDR_ATTR_SHORT] = { .type = NLA_U16 }, 1306 [NL802154_DEV_ADDR_ATTR_EXTENDED] = { .type = NLA_U64 }, 1307 }; 1308 1309 static int 1310 ieee802154_llsec_parse_dev_addr(struct nlattr *nla, 1311 struct ieee802154_addr *addr) 1312 { 1313 struct nlattr *attrs[NL802154_DEV_ADDR_ATTR_MAX + 1]; 1314 1315 if (!nla || nla_parse_nested_deprecated(attrs, NL802154_DEV_ADDR_ATTR_MAX, nla, nl802154_dev_addr_policy, NULL)) 1316 return -EINVAL; 1317 1318 if (!attrs[NL802154_DEV_ADDR_ATTR_PAN_ID] || 1319 !attrs[NL802154_DEV_ADDR_ATTR_MODE] || 1320 !(attrs[NL802154_DEV_ADDR_ATTR_SHORT] || 1321 attrs[NL802154_DEV_ADDR_ATTR_EXTENDED])) 1322 return -EINVAL; 1323 1324 addr->pan_id = nla_get_le16(attrs[NL802154_DEV_ADDR_ATTR_PAN_ID]); 1325 addr->mode = nla_get_u32(attrs[NL802154_DEV_ADDR_ATTR_MODE]); 1326 switch (addr->mode) { 1327 case NL802154_DEV_ADDR_SHORT: 1328 addr->short_addr = nla_get_le16(attrs[NL802154_DEV_ADDR_ATTR_SHORT]); 1329 break; 1330 case NL802154_DEV_ADDR_EXTENDED: 1331 addr->extended_addr = nla_get_le64(attrs[NL802154_DEV_ADDR_ATTR_EXTENDED]); 1332 break; 1333 default: 1334 return -EINVAL; 1335 } 1336 1337 return 0; 1338 } 1339 1340 static const struct nla_policy nl802154_key_id_policy[NL802154_KEY_ID_ATTR_MAX + 1] = { 1341 [NL802154_KEY_ID_ATTR_MODE] = { .type = NLA_U32 }, 1342 [NL802154_KEY_ID_ATTR_INDEX] = { .type = NLA_U8 }, 1343 [NL802154_KEY_ID_ATTR_IMPLICIT] = { .type = NLA_NESTED }, 1344 [NL802154_KEY_ID_ATTR_SOURCE_SHORT] = { .type = NLA_U32 }, 1345 [NL802154_KEY_ID_ATTR_SOURCE_EXTENDED] = { .type = NLA_U64 }, 1346 }; 1347 1348 static int 1349 ieee802154_llsec_parse_key_id(struct nlattr *nla, 1350 struct ieee802154_llsec_key_id *desc) 1351 { 1352 struct nlattr *attrs[NL802154_KEY_ID_ATTR_MAX + 1]; 1353 1354 if (!nla || nla_parse_nested_deprecated(attrs, NL802154_KEY_ID_ATTR_MAX, nla, nl802154_key_id_policy, NULL)) 1355 return -EINVAL; 1356 1357 if (!attrs[NL802154_KEY_ID_ATTR_MODE]) 1358 return -EINVAL; 1359 1360 desc->mode = nla_get_u32(attrs[NL802154_KEY_ID_ATTR_MODE]); 1361 switch (desc->mode) { 1362 case NL802154_KEY_ID_MODE_IMPLICIT: 1363 if (!attrs[NL802154_KEY_ID_ATTR_IMPLICIT]) 1364 return -EINVAL; 1365 1366 if (ieee802154_llsec_parse_dev_addr(attrs[NL802154_KEY_ID_ATTR_IMPLICIT], 1367 &desc->device_addr) < 0) 1368 return -EINVAL; 1369 break; 1370 case NL802154_KEY_ID_MODE_INDEX: 1371 break; 1372 case NL802154_KEY_ID_MODE_INDEX_SHORT: 1373 if (!attrs[NL802154_KEY_ID_ATTR_SOURCE_SHORT]) 1374 return -EINVAL; 1375 1376 desc->short_source = nla_get_le32(attrs[NL802154_KEY_ID_ATTR_SOURCE_SHORT]); 1377 break; 1378 case NL802154_KEY_ID_MODE_INDEX_EXTENDED: 1379 if (!attrs[NL802154_KEY_ID_ATTR_SOURCE_EXTENDED]) 1380 return -EINVAL; 1381 1382 desc->extended_source = nla_get_le64(attrs[NL802154_KEY_ID_ATTR_SOURCE_EXTENDED]); 1383 break; 1384 default: 1385 return -EINVAL; 1386 } 1387 1388 if (desc->mode != NL802154_KEY_ID_MODE_IMPLICIT) { 1389 if (!attrs[NL802154_KEY_ID_ATTR_INDEX]) 1390 return -EINVAL; 1391 1392 /* TODO change id to idx */ 1393 desc->id = nla_get_u8(attrs[NL802154_KEY_ID_ATTR_INDEX]); 1394 } 1395 1396 return 0; 1397 } 1398 1399 static int nl802154_set_llsec_params(struct sk_buff *skb, 1400 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 ieee802154_llsec_params params; 1406 u32 changed = 0; 1407 int ret; 1408 1409 if (info->attrs[NL802154_ATTR_SEC_ENABLED]) { 1410 u8 enabled; 1411 1412 enabled = nla_get_u8(info->attrs[NL802154_ATTR_SEC_ENABLED]); 1413 if (enabled != 0 && enabled != 1) 1414 return -EINVAL; 1415 1416 params.enabled = nla_get_u8(info->attrs[NL802154_ATTR_SEC_ENABLED]); 1417 changed |= IEEE802154_LLSEC_PARAM_ENABLED; 1418 } 1419 1420 if (info->attrs[NL802154_ATTR_SEC_OUT_KEY_ID]) { 1421 ret = ieee802154_llsec_parse_key_id(info->attrs[NL802154_ATTR_SEC_OUT_KEY_ID], 1422 ¶ms.out_key); 1423 if (ret < 0) 1424 return ret; 1425 1426 changed |= IEEE802154_LLSEC_PARAM_OUT_KEY; 1427 } 1428 1429 if (info->attrs[NL802154_ATTR_SEC_OUT_LEVEL]) { 1430 params.out_level = nla_get_u32(info->attrs[NL802154_ATTR_SEC_OUT_LEVEL]); 1431 if (params.out_level > NL802154_SECLEVEL_MAX) 1432 return -EINVAL; 1433 1434 changed |= IEEE802154_LLSEC_PARAM_OUT_LEVEL; 1435 } 1436 1437 if (info->attrs[NL802154_ATTR_SEC_FRAME_COUNTER]) { 1438 params.frame_counter = nla_get_be32(info->attrs[NL802154_ATTR_SEC_FRAME_COUNTER]); 1439 changed |= IEEE802154_LLSEC_PARAM_FRAME_COUNTER; 1440 } 1441 1442 return rdev_set_llsec_params(rdev, wpan_dev, ¶ms, changed); 1443 } 1444 1445 static int nl802154_send_key(struct sk_buff *msg, u32 cmd, u32 portid, 1446 u32 seq, int flags, 1447 struct cfg802154_registered_device *rdev, 1448 struct net_device *dev, 1449 const struct ieee802154_llsec_key_entry *key) 1450 { 1451 void *hdr; 1452 u32 commands[NL802154_CMD_FRAME_NR_IDS / 32]; 1453 struct nlattr *nl_key, *nl_key_id; 1454 1455 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd); 1456 if (!hdr) 1457 return -1; 1458 1459 if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex)) 1460 goto nla_put_failure; 1461 1462 nl_key = nla_nest_start_noflag(msg, NL802154_ATTR_SEC_KEY); 1463 if (!nl_key) 1464 goto nla_put_failure; 1465 1466 nl_key_id = nla_nest_start_noflag(msg, NL802154_KEY_ATTR_ID); 1467 if (!nl_key_id) 1468 goto nla_put_failure; 1469 1470 if (ieee802154_llsec_send_key_id(msg, &key->id) < 0) 1471 goto nla_put_failure; 1472 1473 nla_nest_end(msg, nl_key_id); 1474 1475 if (nla_put_u8(msg, NL802154_KEY_ATTR_USAGE_FRAMES, 1476 key->key->frame_types)) 1477 goto nla_put_failure; 1478 1479 if (key->key->frame_types & BIT(NL802154_FRAME_CMD)) { 1480 /* TODO for each nested */ 1481 memset(commands, 0, sizeof(commands)); 1482 commands[7] = key->key->cmd_frame_ids; 1483 if (nla_put(msg, NL802154_KEY_ATTR_USAGE_CMDS, 1484 sizeof(commands), commands)) 1485 goto nla_put_failure; 1486 } 1487 1488 if (nla_put(msg, NL802154_KEY_ATTR_BYTES, NL802154_KEY_SIZE, 1489 key->key->key)) 1490 goto nla_put_failure; 1491 1492 nla_nest_end(msg, nl_key); 1493 genlmsg_end(msg, hdr); 1494 1495 return 0; 1496 1497 nla_put_failure: 1498 genlmsg_cancel(msg, hdr); 1499 return -EMSGSIZE; 1500 } 1501 1502 static int 1503 nl802154_dump_llsec_key(struct sk_buff *skb, struct netlink_callback *cb) 1504 { 1505 struct cfg802154_registered_device *rdev = NULL; 1506 struct ieee802154_llsec_key_entry *key; 1507 struct ieee802154_llsec_table *table; 1508 struct wpan_dev *wpan_dev; 1509 int err; 1510 1511 err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev); 1512 if (err) 1513 return err; 1514 1515 if (!wpan_dev->netdev) { 1516 err = -EINVAL; 1517 goto out_err; 1518 } 1519 1520 rdev_lock_llsec_table(rdev, wpan_dev); 1521 rdev_get_llsec_table(rdev, wpan_dev, &table); 1522 1523 /* TODO make it like station dump */ 1524 if (cb->args[2]) 1525 goto out; 1526 1527 list_for_each_entry(key, &table->keys, list) { 1528 if (nl802154_send_key(skb, NL802154_CMD_NEW_SEC_KEY, 1529 NETLINK_CB(cb->skb).portid, 1530 cb->nlh->nlmsg_seq, NLM_F_MULTI, 1531 rdev, wpan_dev->netdev, key) < 0) { 1532 /* TODO */ 1533 err = -EIO; 1534 rdev_unlock_llsec_table(rdev, wpan_dev); 1535 goto out_err; 1536 } 1537 } 1538 1539 cb->args[2] = 1; 1540 1541 out: 1542 rdev_unlock_llsec_table(rdev, wpan_dev); 1543 err = skb->len; 1544 out_err: 1545 nl802154_finish_wpan_dev_dump(rdev); 1546 1547 return err; 1548 } 1549 1550 static const struct nla_policy nl802154_key_policy[NL802154_KEY_ATTR_MAX + 1] = { 1551 [NL802154_KEY_ATTR_ID] = { NLA_NESTED }, 1552 /* TODO handle it as for_each_nested and NLA_FLAG? */ 1553 [NL802154_KEY_ATTR_USAGE_FRAMES] = { NLA_U8 }, 1554 /* TODO handle it as for_each_nested, not static array? */ 1555 [NL802154_KEY_ATTR_USAGE_CMDS] = { .len = NL802154_CMD_FRAME_NR_IDS / 8 }, 1556 [NL802154_KEY_ATTR_BYTES] = { .len = NL802154_KEY_SIZE }, 1557 }; 1558 1559 static int nl802154_add_llsec_key(struct sk_buff *skb, struct genl_info *info) 1560 { 1561 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1562 struct net_device *dev = info->user_ptr[1]; 1563 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1564 struct nlattr *attrs[NL802154_KEY_ATTR_MAX + 1]; 1565 struct ieee802154_llsec_key key = { }; 1566 struct ieee802154_llsec_key_id id = { }; 1567 u32 commands[NL802154_CMD_FRAME_NR_IDS / 32] = { }; 1568 1569 if (nla_parse_nested_deprecated(attrs, NL802154_KEY_ATTR_MAX, info->attrs[NL802154_ATTR_SEC_KEY], nl802154_key_policy, info->extack)) 1570 return -EINVAL; 1571 1572 if (!attrs[NL802154_KEY_ATTR_USAGE_FRAMES] || 1573 !attrs[NL802154_KEY_ATTR_BYTES]) 1574 return -EINVAL; 1575 1576 if (ieee802154_llsec_parse_key_id(attrs[NL802154_KEY_ATTR_ID], &id) < 0) 1577 return -ENOBUFS; 1578 1579 key.frame_types = nla_get_u8(attrs[NL802154_KEY_ATTR_USAGE_FRAMES]); 1580 if (key.frame_types > BIT(NL802154_FRAME_MAX) || 1581 ((key.frame_types & BIT(NL802154_FRAME_CMD)) && 1582 !attrs[NL802154_KEY_ATTR_USAGE_CMDS])) 1583 return -EINVAL; 1584 1585 if (attrs[NL802154_KEY_ATTR_USAGE_CMDS]) { 1586 /* TODO for each nested */ 1587 nla_memcpy(commands, attrs[NL802154_KEY_ATTR_USAGE_CMDS], 1588 NL802154_CMD_FRAME_NR_IDS / 8); 1589 1590 /* TODO understand the -EINVAL logic here? last condition */ 1591 if (commands[0] || commands[1] || commands[2] || commands[3] || 1592 commands[4] || commands[5] || commands[6] || 1593 commands[7] > BIT(NL802154_CMD_FRAME_MAX)) 1594 return -EINVAL; 1595 1596 key.cmd_frame_ids = commands[7]; 1597 } else { 1598 key.cmd_frame_ids = 0; 1599 } 1600 1601 nla_memcpy(key.key, attrs[NL802154_KEY_ATTR_BYTES], NL802154_KEY_SIZE); 1602 1603 if (ieee802154_llsec_parse_key_id(attrs[NL802154_KEY_ATTR_ID], &id) < 0) 1604 return -ENOBUFS; 1605 1606 return rdev_add_llsec_key(rdev, wpan_dev, &id, &key); 1607 } 1608 1609 static int nl802154_del_llsec_key(struct sk_buff *skb, struct genl_info *info) 1610 { 1611 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1612 struct net_device *dev = info->user_ptr[1]; 1613 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1614 struct nlattr *attrs[NL802154_KEY_ATTR_MAX + 1]; 1615 struct ieee802154_llsec_key_id id; 1616 1617 if (nla_parse_nested_deprecated(attrs, NL802154_KEY_ATTR_MAX, info->attrs[NL802154_ATTR_SEC_KEY], nl802154_key_policy, info->extack)) 1618 return -EINVAL; 1619 1620 if (ieee802154_llsec_parse_key_id(attrs[NL802154_KEY_ATTR_ID], &id) < 0) 1621 return -ENOBUFS; 1622 1623 return rdev_del_llsec_key(rdev, wpan_dev, &id); 1624 } 1625 1626 static int nl802154_send_device(struct sk_buff *msg, u32 cmd, u32 portid, 1627 u32 seq, int flags, 1628 struct cfg802154_registered_device *rdev, 1629 struct net_device *dev, 1630 const struct ieee802154_llsec_device *dev_desc) 1631 { 1632 void *hdr; 1633 struct nlattr *nl_device; 1634 1635 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd); 1636 if (!hdr) 1637 return -1; 1638 1639 if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex)) 1640 goto nla_put_failure; 1641 1642 nl_device = nla_nest_start_noflag(msg, NL802154_ATTR_SEC_DEVICE); 1643 if (!nl_device) 1644 goto nla_put_failure; 1645 1646 if (nla_put_u32(msg, NL802154_DEV_ATTR_FRAME_COUNTER, 1647 dev_desc->frame_counter) || 1648 nla_put_le16(msg, NL802154_DEV_ATTR_PAN_ID, dev_desc->pan_id) || 1649 nla_put_le16(msg, NL802154_DEV_ATTR_SHORT_ADDR, 1650 dev_desc->short_addr) || 1651 nla_put_le64(msg, NL802154_DEV_ATTR_EXTENDED_ADDR, 1652 dev_desc->hwaddr, NL802154_DEV_ATTR_PAD) || 1653 nla_put_u8(msg, NL802154_DEV_ATTR_SECLEVEL_EXEMPT, 1654 dev_desc->seclevel_exempt) || 1655 nla_put_u32(msg, NL802154_DEV_ATTR_KEY_MODE, dev_desc->key_mode)) 1656 goto nla_put_failure; 1657 1658 nla_nest_end(msg, nl_device); 1659 genlmsg_end(msg, hdr); 1660 1661 return 0; 1662 1663 nla_put_failure: 1664 genlmsg_cancel(msg, hdr); 1665 return -EMSGSIZE; 1666 } 1667 1668 static int 1669 nl802154_dump_llsec_dev(struct sk_buff *skb, struct netlink_callback *cb) 1670 { 1671 struct cfg802154_registered_device *rdev = NULL; 1672 struct ieee802154_llsec_device *dev; 1673 struct ieee802154_llsec_table *table; 1674 struct wpan_dev *wpan_dev; 1675 int err; 1676 1677 err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev); 1678 if (err) 1679 return err; 1680 1681 if (!wpan_dev->netdev) { 1682 err = -EINVAL; 1683 goto out_err; 1684 } 1685 1686 rdev_lock_llsec_table(rdev, wpan_dev); 1687 rdev_get_llsec_table(rdev, wpan_dev, &table); 1688 1689 /* TODO make it like station dump */ 1690 if (cb->args[2]) 1691 goto out; 1692 1693 list_for_each_entry(dev, &table->devices, list) { 1694 if (nl802154_send_device(skb, NL802154_CMD_NEW_SEC_LEVEL, 1695 NETLINK_CB(cb->skb).portid, 1696 cb->nlh->nlmsg_seq, NLM_F_MULTI, 1697 rdev, wpan_dev->netdev, dev) < 0) { 1698 /* TODO */ 1699 err = -EIO; 1700 rdev_unlock_llsec_table(rdev, wpan_dev); 1701 goto out_err; 1702 } 1703 } 1704 1705 cb->args[2] = 1; 1706 1707 out: 1708 rdev_unlock_llsec_table(rdev, wpan_dev); 1709 err = skb->len; 1710 out_err: 1711 nl802154_finish_wpan_dev_dump(rdev); 1712 1713 return err; 1714 } 1715 1716 static const struct nla_policy nl802154_dev_policy[NL802154_DEV_ATTR_MAX + 1] = { 1717 [NL802154_DEV_ATTR_FRAME_COUNTER] = { NLA_U32 }, 1718 [NL802154_DEV_ATTR_PAN_ID] = { .type = NLA_U16 }, 1719 [NL802154_DEV_ATTR_SHORT_ADDR] = { .type = NLA_U16 }, 1720 [NL802154_DEV_ATTR_EXTENDED_ADDR] = { .type = NLA_U64 }, 1721 [NL802154_DEV_ATTR_SECLEVEL_EXEMPT] = { NLA_U8 }, 1722 [NL802154_DEV_ATTR_KEY_MODE] = { NLA_U32 }, 1723 }; 1724 1725 static int 1726 ieee802154_llsec_parse_device(struct nlattr *nla, 1727 struct ieee802154_llsec_device *dev) 1728 { 1729 struct nlattr *attrs[NL802154_DEV_ATTR_MAX + 1]; 1730 1731 if (!nla || nla_parse_nested_deprecated(attrs, NL802154_DEV_ATTR_MAX, nla, nl802154_dev_policy, NULL)) 1732 return -EINVAL; 1733 1734 memset(dev, 0, sizeof(*dev)); 1735 1736 if (!attrs[NL802154_DEV_ATTR_FRAME_COUNTER] || 1737 !attrs[NL802154_DEV_ATTR_PAN_ID] || 1738 !attrs[NL802154_DEV_ATTR_SHORT_ADDR] || 1739 !attrs[NL802154_DEV_ATTR_EXTENDED_ADDR] || 1740 !attrs[NL802154_DEV_ATTR_SECLEVEL_EXEMPT] || 1741 !attrs[NL802154_DEV_ATTR_KEY_MODE]) 1742 return -EINVAL; 1743 1744 /* TODO be32 */ 1745 dev->frame_counter = nla_get_u32(attrs[NL802154_DEV_ATTR_FRAME_COUNTER]); 1746 dev->pan_id = nla_get_le16(attrs[NL802154_DEV_ATTR_PAN_ID]); 1747 dev->short_addr = nla_get_le16(attrs[NL802154_DEV_ATTR_SHORT_ADDR]); 1748 /* TODO rename hwaddr to extended_addr */ 1749 dev->hwaddr = nla_get_le64(attrs[NL802154_DEV_ATTR_EXTENDED_ADDR]); 1750 dev->seclevel_exempt = nla_get_u8(attrs[NL802154_DEV_ATTR_SECLEVEL_EXEMPT]); 1751 dev->key_mode = nla_get_u32(attrs[NL802154_DEV_ATTR_KEY_MODE]); 1752 1753 if (dev->key_mode > NL802154_DEVKEY_MAX || 1754 (dev->seclevel_exempt != 0 && dev->seclevel_exempt != 1)) 1755 return -EINVAL; 1756 1757 return 0; 1758 } 1759 1760 static int nl802154_add_llsec_dev(struct sk_buff *skb, struct genl_info *info) 1761 { 1762 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1763 struct net_device *dev = info->user_ptr[1]; 1764 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1765 struct ieee802154_llsec_device dev_desc; 1766 1767 if (ieee802154_llsec_parse_device(info->attrs[NL802154_ATTR_SEC_DEVICE], 1768 &dev_desc) < 0) 1769 return -EINVAL; 1770 1771 return rdev_add_device(rdev, wpan_dev, &dev_desc); 1772 } 1773 1774 static int nl802154_del_llsec_dev(struct sk_buff *skb, struct genl_info *info) 1775 { 1776 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1777 struct net_device *dev = info->user_ptr[1]; 1778 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1779 struct nlattr *attrs[NL802154_DEV_ATTR_MAX + 1]; 1780 __le64 extended_addr; 1781 1782 if (nla_parse_nested_deprecated(attrs, NL802154_DEV_ATTR_MAX, info->attrs[NL802154_ATTR_SEC_DEVICE], nl802154_dev_policy, info->extack)) 1783 return -EINVAL; 1784 1785 if (!attrs[NL802154_DEV_ATTR_EXTENDED_ADDR]) 1786 return -EINVAL; 1787 1788 extended_addr = nla_get_le64(attrs[NL802154_DEV_ATTR_EXTENDED_ADDR]); 1789 return rdev_del_device(rdev, wpan_dev, extended_addr); 1790 } 1791 1792 static int nl802154_send_devkey(struct sk_buff *msg, u32 cmd, u32 portid, 1793 u32 seq, int flags, 1794 struct cfg802154_registered_device *rdev, 1795 struct net_device *dev, __le64 extended_addr, 1796 const struct ieee802154_llsec_device_key *devkey) 1797 { 1798 void *hdr; 1799 struct nlattr *nl_devkey, *nl_key_id; 1800 1801 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd); 1802 if (!hdr) 1803 return -1; 1804 1805 if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex)) 1806 goto nla_put_failure; 1807 1808 nl_devkey = nla_nest_start_noflag(msg, NL802154_ATTR_SEC_DEVKEY); 1809 if (!nl_devkey) 1810 goto nla_put_failure; 1811 1812 if (nla_put_le64(msg, NL802154_DEVKEY_ATTR_EXTENDED_ADDR, 1813 extended_addr, NL802154_DEVKEY_ATTR_PAD) || 1814 nla_put_u32(msg, NL802154_DEVKEY_ATTR_FRAME_COUNTER, 1815 devkey->frame_counter)) 1816 goto nla_put_failure; 1817 1818 nl_key_id = nla_nest_start_noflag(msg, NL802154_DEVKEY_ATTR_ID); 1819 if (!nl_key_id) 1820 goto nla_put_failure; 1821 1822 if (ieee802154_llsec_send_key_id(msg, &devkey->key_id) < 0) 1823 goto nla_put_failure; 1824 1825 nla_nest_end(msg, nl_key_id); 1826 nla_nest_end(msg, nl_devkey); 1827 genlmsg_end(msg, hdr); 1828 1829 return 0; 1830 1831 nla_put_failure: 1832 genlmsg_cancel(msg, hdr); 1833 return -EMSGSIZE; 1834 } 1835 1836 static int 1837 nl802154_dump_llsec_devkey(struct sk_buff *skb, struct netlink_callback *cb) 1838 { 1839 struct cfg802154_registered_device *rdev = NULL; 1840 struct ieee802154_llsec_device_key *kpos; 1841 struct ieee802154_llsec_device *dpos; 1842 struct ieee802154_llsec_table *table; 1843 struct wpan_dev *wpan_dev; 1844 int err; 1845 1846 err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev); 1847 if (err) 1848 return err; 1849 1850 if (!wpan_dev->netdev) { 1851 err = -EINVAL; 1852 goto out_err; 1853 } 1854 1855 rdev_lock_llsec_table(rdev, wpan_dev); 1856 rdev_get_llsec_table(rdev, wpan_dev, &table); 1857 1858 /* TODO make it like station dump */ 1859 if (cb->args[2]) 1860 goto out; 1861 1862 /* TODO look if remove devkey and do some nested attribute */ 1863 list_for_each_entry(dpos, &table->devices, list) { 1864 list_for_each_entry(kpos, &dpos->keys, list) { 1865 if (nl802154_send_devkey(skb, 1866 NL802154_CMD_NEW_SEC_LEVEL, 1867 NETLINK_CB(cb->skb).portid, 1868 cb->nlh->nlmsg_seq, 1869 NLM_F_MULTI, rdev, 1870 wpan_dev->netdev, 1871 dpos->hwaddr, 1872 kpos) < 0) { 1873 /* TODO */ 1874 err = -EIO; 1875 rdev_unlock_llsec_table(rdev, wpan_dev); 1876 goto out_err; 1877 } 1878 } 1879 } 1880 1881 cb->args[2] = 1; 1882 1883 out: 1884 rdev_unlock_llsec_table(rdev, wpan_dev); 1885 err = skb->len; 1886 out_err: 1887 nl802154_finish_wpan_dev_dump(rdev); 1888 1889 return err; 1890 } 1891 1892 static const struct nla_policy nl802154_devkey_policy[NL802154_DEVKEY_ATTR_MAX + 1] = { 1893 [NL802154_DEVKEY_ATTR_FRAME_COUNTER] = { NLA_U32 }, 1894 [NL802154_DEVKEY_ATTR_EXTENDED_ADDR] = { NLA_U64 }, 1895 [NL802154_DEVKEY_ATTR_ID] = { NLA_NESTED }, 1896 }; 1897 1898 static int nl802154_add_llsec_devkey(struct sk_buff *skb, struct genl_info *info) 1899 { 1900 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1901 struct net_device *dev = info->user_ptr[1]; 1902 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1903 struct nlattr *attrs[NL802154_DEVKEY_ATTR_MAX + 1]; 1904 struct ieee802154_llsec_device_key key; 1905 __le64 extended_addr; 1906 1907 if (!info->attrs[NL802154_ATTR_SEC_DEVKEY] || 1908 nla_parse_nested_deprecated(attrs, NL802154_DEVKEY_ATTR_MAX, info->attrs[NL802154_ATTR_SEC_DEVKEY], nl802154_devkey_policy, info->extack) < 0) 1909 return -EINVAL; 1910 1911 if (!attrs[NL802154_DEVKEY_ATTR_FRAME_COUNTER] || 1912 !attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR]) 1913 return -EINVAL; 1914 1915 /* TODO change key.id ? */ 1916 if (ieee802154_llsec_parse_key_id(attrs[NL802154_DEVKEY_ATTR_ID], 1917 &key.key_id) < 0) 1918 return -ENOBUFS; 1919 1920 /* TODO be32 */ 1921 key.frame_counter = nla_get_u32(attrs[NL802154_DEVKEY_ATTR_FRAME_COUNTER]); 1922 /* TODO change naming hwaddr -> extended_addr 1923 * check unique identifier short+pan OR extended_addr 1924 */ 1925 extended_addr = nla_get_le64(attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR]); 1926 return rdev_add_devkey(rdev, wpan_dev, extended_addr, &key); 1927 } 1928 1929 static int nl802154_del_llsec_devkey(struct sk_buff *skb, struct genl_info *info) 1930 { 1931 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 1932 struct net_device *dev = info->user_ptr[1]; 1933 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 1934 struct nlattr *attrs[NL802154_DEVKEY_ATTR_MAX + 1]; 1935 struct ieee802154_llsec_device_key key; 1936 __le64 extended_addr; 1937 1938 if (nla_parse_nested_deprecated(attrs, NL802154_DEVKEY_ATTR_MAX, info->attrs[NL802154_ATTR_SEC_DEVKEY], nl802154_devkey_policy, info->extack)) 1939 return -EINVAL; 1940 1941 if (!attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR]) 1942 return -EINVAL; 1943 1944 /* TODO change key.id ? */ 1945 if (ieee802154_llsec_parse_key_id(attrs[NL802154_DEVKEY_ATTR_ID], 1946 &key.key_id) < 0) 1947 return -ENOBUFS; 1948 1949 /* TODO change naming hwaddr -> extended_addr 1950 * check unique identifier short+pan OR extended_addr 1951 */ 1952 extended_addr = nla_get_le64(attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR]); 1953 return rdev_del_devkey(rdev, wpan_dev, extended_addr, &key); 1954 } 1955 1956 static int nl802154_send_seclevel(struct sk_buff *msg, u32 cmd, u32 portid, 1957 u32 seq, int flags, 1958 struct cfg802154_registered_device *rdev, 1959 struct net_device *dev, 1960 const struct ieee802154_llsec_seclevel *sl) 1961 { 1962 void *hdr; 1963 struct nlattr *nl_seclevel; 1964 1965 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd); 1966 if (!hdr) 1967 return -1; 1968 1969 if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex)) 1970 goto nla_put_failure; 1971 1972 nl_seclevel = nla_nest_start_noflag(msg, NL802154_ATTR_SEC_LEVEL); 1973 if (!nl_seclevel) 1974 goto nla_put_failure; 1975 1976 if (nla_put_u32(msg, NL802154_SECLEVEL_ATTR_FRAME, sl->frame_type) || 1977 nla_put_u32(msg, NL802154_SECLEVEL_ATTR_LEVELS, sl->sec_levels) || 1978 nla_put_u8(msg, NL802154_SECLEVEL_ATTR_DEV_OVERRIDE, 1979 sl->device_override)) 1980 goto nla_put_failure; 1981 1982 if (sl->frame_type == NL802154_FRAME_CMD) { 1983 if (nla_put_u32(msg, NL802154_SECLEVEL_ATTR_CMD_FRAME, 1984 sl->cmd_frame_id)) 1985 goto nla_put_failure; 1986 } 1987 1988 nla_nest_end(msg, nl_seclevel); 1989 genlmsg_end(msg, hdr); 1990 1991 return 0; 1992 1993 nla_put_failure: 1994 genlmsg_cancel(msg, hdr); 1995 return -EMSGSIZE; 1996 } 1997 1998 static int 1999 nl802154_dump_llsec_seclevel(struct sk_buff *skb, struct netlink_callback *cb) 2000 { 2001 struct cfg802154_registered_device *rdev = NULL; 2002 struct ieee802154_llsec_seclevel *sl; 2003 struct ieee802154_llsec_table *table; 2004 struct wpan_dev *wpan_dev; 2005 int err; 2006 2007 err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev); 2008 if (err) 2009 return err; 2010 2011 if (!wpan_dev->netdev) { 2012 err = -EINVAL; 2013 goto out_err; 2014 } 2015 2016 rdev_lock_llsec_table(rdev, wpan_dev); 2017 rdev_get_llsec_table(rdev, wpan_dev, &table); 2018 2019 /* TODO make it like station dump */ 2020 if (cb->args[2]) 2021 goto out; 2022 2023 list_for_each_entry(sl, &table->security_levels, list) { 2024 if (nl802154_send_seclevel(skb, NL802154_CMD_NEW_SEC_LEVEL, 2025 NETLINK_CB(cb->skb).portid, 2026 cb->nlh->nlmsg_seq, NLM_F_MULTI, 2027 rdev, wpan_dev->netdev, sl) < 0) { 2028 /* TODO */ 2029 err = -EIO; 2030 rdev_unlock_llsec_table(rdev, wpan_dev); 2031 goto out_err; 2032 } 2033 } 2034 2035 cb->args[2] = 1; 2036 2037 out: 2038 rdev_unlock_llsec_table(rdev, wpan_dev); 2039 err = skb->len; 2040 out_err: 2041 nl802154_finish_wpan_dev_dump(rdev); 2042 2043 return err; 2044 } 2045 2046 static const struct nla_policy nl802154_seclevel_policy[NL802154_SECLEVEL_ATTR_MAX + 1] = { 2047 [NL802154_SECLEVEL_ATTR_LEVELS] = { .type = NLA_U8 }, 2048 [NL802154_SECLEVEL_ATTR_FRAME] = { .type = NLA_U32 }, 2049 [NL802154_SECLEVEL_ATTR_CMD_FRAME] = { .type = NLA_U32 }, 2050 [NL802154_SECLEVEL_ATTR_DEV_OVERRIDE] = { .type = NLA_U8 }, 2051 }; 2052 2053 static int 2054 llsec_parse_seclevel(struct nlattr *nla, struct ieee802154_llsec_seclevel *sl) 2055 { 2056 struct nlattr *attrs[NL802154_SECLEVEL_ATTR_MAX + 1]; 2057 2058 if (!nla || nla_parse_nested_deprecated(attrs, NL802154_SECLEVEL_ATTR_MAX, nla, nl802154_seclevel_policy, NULL)) 2059 return -EINVAL; 2060 2061 memset(sl, 0, sizeof(*sl)); 2062 2063 if (!attrs[NL802154_SECLEVEL_ATTR_LEVELS] || 2064 !attrs[NL802154_SECLEVEL_ATTR_FRAME] || 2065 !attrs[NL802154_SECLEVEL_ATTR_DEV_OVERRIDE]) 2066 return -EINVAL; 2067 2068 sl->sec_levels = nla_get_u8(attrs[NL802154_SECLEVEL_ATTR_LEVELS]); 2069 sl->frame_type = nla_get_u32(attrs[NL802154_SECLEVEL_ATTR_FRAME]); 2070 sl->device_override = nla_get_u8(attrs[NL802154_SECLEVEL_ATTR_DEV_OVERRIDE]); 2071 if (sl->frame_type > NL802154_FRAME_MAX || 2072 (sl->device_override != 0 && sl->device_override != 1)) 2073 return -EINVAL; 2074 2075 if (sl->frame_type == NL802154_FRAME_CMD) { 2076 if (!attrs[NL802154_SECLEVEL_ATTR_CMD_FRAME]) 2077 return -EINVAL; 2078 2079 sl->cmd_frame_id = nla_get_u32(attrs[NL802154_SECLEVEL_ATTR_CMD_FRAME]); 2080 if (sl->cmd_frame_id > NL802154_CMD_FRAME_MAX) 2081 return -EINVAL; 2082 } 2083 2084 return 0; 2085 } 2086 2087 static int nl802154_add_llsec_seclevel(struct sk_buff *skb, 2088 struct genl_info *info) 2089 { 2090 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 2091 struct net_device *dev = info->user_ptr[1]; 2092 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 2093 struct ieee802154_llsec_seclevel sl; 2094 2095 if (llsec_parse_seclevel(info->attrs[NL802154_ATTR_SEC_LEVEL], 2096 &sl) < 0) 2097 return -EINVAL; 2098 2099 return rdev_add_seclevel(rdev, wpan_dev, &sl); 2100 } 2101 2102 static int nl802154_del_llsec_seclevel(struct sk_buff *skb, 2103 struct genl_info *info) 2104 { 2105 struct cfg802154_registered_device *rdev = info->user_ptr[0]; 2106 struct net_device *dev = info->user_ptr[1]; 2107 struct wpan_dev *wpan_dev = dev->ieee802154_ptr; 2108 struct ieee802154_llsec_seclevel sl; 2109 2110 if (!info->attrs[NL802154_ATTR_SEC_LEVEL] || 2111 llsec_parse_seclevel(info->attrs[NL802154_ATTR_SEC_LEVEL], 2112 &sl) < 0) 2113 return -EINVAL; 2114 2115 return rdev_del_seclevel(rdev, wpan_dev, &sl); 2116 } 2117 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */ 2118 2119 #define NL802154_FLAG_NEED_WPAN_PHY 0x01 2120 #define NL802154_FLAG_NEED_NETDEV 0x02 2121 #define NL802154_FLAG_NEED_RTNL 0x04 2122 #define NL802154_FLAG_CHECK_NETDEV_UP 0x08 2123 #define NL802154_FLAG_NEED_NETDEV_UP (NL802154_FLAG_NEED_NETDEV |\ 2124 NL802154_FLAG_CHECK_NETDEV_UP) 2125 #define NL802154_FLAG_NEED_WPAN_DEV 0x10 2126 #define NL802154_FLAG_NEED_WPAN_DEV_UP (NL802154_FLAG_NEED_WPAN_DEV |\ 2127 NL802154_FLAG_CHECK_NETDEV_UP) 2128 2129 static int nl802154_pre_doit(const struct genl_ops *ops, struct sk_buff *skb, 2130 struct genl_info *info) 2131 { 2132 struct cfg802154_registered_device *rdev; 2133 struct wpan_dev *wpan_dev; 2134 struct net_device *dev; 2135 bool rtnl = ops->internal_flags & NL802154_FLAG_NEED_RTNL; 2136 2137 if (rtnl) 2138 rtnl_lock(); 2139 2140 if (ops->internal_flags & NL802154_FLAG_NEED_WPAN_PHY) { 2141 rdev = cfg802154_get_dev_from_info(genl_info_net(info), info); 2142 if (IS_ERR(rdev)) { 2143 if (rtnl) 2144 rtnl_unlock(); 2145 return PTR_ERR(rdev); 2146 } 2147 info->user_ptr[0] = rdev; 2148 } else if (ops->internal_flags & NL802154_FLAG_NEED_NETDEV || 2149 ops->internal_flags & NL802154_FLAG_NEED_WPAN_DEV) { 2150 ASSERT_RTNL(); 2151 wpan_dev = __cfg802154_wpan_dev_from_attrs(genl_info_net(info), 2152 info->attrs); 2153 if (IS_ERR(wpan_dev)) { 2154 if (rtnl) 2155 rtnl_unlock(); 2156 return PTR_ERR(wpan_dev); 2157 } 2158 2159 dev = wpan_dev->netdev; 2160 rdev = wpan_phy_to_rdev(wpan_dev->wpan_phy); 2161 2162 if (ops->internal_flags & NL802154_FLAG_NEED_NETDEV) { 2163 if (!dev) { 2164 if (rtnl) 2165 rtnl_unlock(); 2166 return -EINVAL; 2167 } 2168 2169 info->user_ptr[1] = dev; 2170 } else { 2171 info->user_ptr[1] = wpan_dev; 2172 } 2173 2174 if (dev) { 2175 if (ops->internal_flags & NL802154_FLAG_CHECK_NETDEV_UP && 2176 !netif_running(dev)) { 2177 if (rtnl) 2178 rtnl_unlock(); 2179 return -ENETDOWN; 2180 } 2181 2182 dev_hold(dev); 2183 } 2184 2185 info->user_ptr[0] = rdev; 2186 } 2187 2188 return 0; 2189 } 2190 2191 static void nl802154_post_doit(const struct genl_ops *ops, struct sk_buff *skb, 2192 struct genl_info *info) 2193 { 2194 if (info->user_ptr[1]) { 2195 if (ops->internal_flags & NL802154_FLAG_NEED_WPAN_DEV) { 2196 struct wpan_dev *wpan_dev = info->user_ptr[1]; 2197 2198 if (wpan_dev->netdev) 2199 dev_put(wpan_dev->netdev); 2200 } else { 2201 dev_put(info->user_ptr[1]); 2202 } 2203 } 2204 2205 if (ops->internal_flags & NL802154_FLAG_NEED_RTNL) 2206 rtnl_unlock(); 2207 } 2208 2209 static const struct genl_ops nl802154_ops[] = { 2210 { 2211 .cmd = NL802154_CMD_GET_WPAN_PHY, 2212 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2213 .doit = nl802154_get_wpan_phy, 2214 .dumpit = nl802154_dump_wpan_phy, 2215 .done = nl802154_dump_wpan_phy_done, 2216 /* can be retrieved by unprivileged users */ 2217 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY | 2218 NL802154_FLAG_NEED_RTNL, 2219 }, 2220 { 2221 .cmd = NL802154_CMD_GET_INTERFACE, 2222 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2223 .doit = nl802154_get_interface, 2224 .dumpit = nl802154_dump_interface, 2225 /* can be retrieved by unprivileged users */ 2226 .internal_flags = NL802154_FLAG_NEED_WPAN_DEV | 2227 NL802154_FLAG_NEED_RTNL, 2228 }, 2229 { 2230 .cmd = NL802154_CMD_NEW_INTERFACE, 2231 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2232 .doit = nl802154_new_interface, 2233 .flags = GENL_ADMIN_PERM, 2234 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY | 2235 NL802154_FLAG_NEED_RTNL, 2236 }, 2237 { 2238 .cmd = NL802154_CMD_DEL_INTERFACE, 2239 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2240 .doit = nl802154_del_interface, 2241 .flags = GENL_ADMIN_PERM, 2242 .internal_flags = NL802154_FLAG_NEED_WPAN_DEV | 2243 NL802154_FLAG_NEED_RTNL, 2244 }, 2245 { 2246 .cmd = NL802154_CMD_SET_CHANNEL, 2247 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2248 .doit = nl802154_set_channel, 2249 .flags = GENL_ADMIN_PERM, 2250 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY | 2251 NL802154_FLAG_NEED_RTNL, 2252 }, 2253 { 2254 .cmd = NL802154_CMD_SET_CCA_MODE, 2255 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2256 .doit = nl802154_set_cca_mode, 2257 .flags = GENL_ADMIN_PERM, 2258 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY | 2259 NL802154_FLAG_NEED_RTNL, 2260 }, 2261 { 2262 .cmd = NL802154_CMD_SET_CCA_ED_LEVEL, 2263 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2264 .doit = nl802154_set_cca_ed_level, 2265 .flags = GENL_ADMIN_PERM, 2266 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY | 2267 NL802154_FLAG_NEED_RTNL, 2268 }, 2269 { 2270 .cmd = NL802154_CMD_SET_TX_POWER, 2271 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2272 .doit = nl802154_set_tx_power, 2273 .flags = GENL_ADMIN_PERM, 2274 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY | 2275 NL802154_FLAG_NEED_RTNL, 2276 }, 2277 { 2278 .cmd = NL802154_CMD_SET_WPAN_PHY_NETNS, 2279 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2280 .doit = nl802154_wpan_phy_netns, 2281 .flags = GENL_ADMIN_PERM, 2282 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY | 2283 NL802154_FLAG_NEED_RTNL, 2284 }, 2285 { 2286 .cmd = NL802154_CMD_SET_PAN_ID, 2287 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2288 .doit = nl802154_set_pan_id, 2289 .flags = GENL_ADMIN_PERM, 2290 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2291 NL802154_FLAG_NEED_RTNL, 2292 }, 2293 { 2294 .cmd = NL802154_CMD_SET_SHORT_ADDR, 2295 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2296 .doit = nl802154_set_short_addr, 2297 .flags = GENL_ADMIN_PERM, 2298 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2299 NL802154_FLAG_NEED_RTNL, 2300 }, 2301 { 2302 .cmd = NL802154_CMD_SET_BACKOFF_EXPONENT, 2303 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2304 .doit = nl802154_set_backoff_exponent, 2305 .flags = GENL_ADMIN_PERM, 2306 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2307 NL802154_FLAG_NEED_RTNL, 2308 }, 2309 { 2310 .cmd = NL802154_CMD_SET_MAX_CSMA_BACKOFFS, 2311 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2312 .doit = nl802154_set_max_csma_backoffs, 2313 .flags = GENL_ADMIN_PERM, 2314 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2315 NL802154_FLAG_NEED_RTNL, 2316 }, 2317 { 2318 .cmd = NL802154_CMD_SET_MAX_FRAME_RETRIES, 2319 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2320 .doit = nl802154_set_max_frame_retries, 2321 .flags = GENL_ADMIN_PERM, 2322 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2323 NL802154_FLAG_NEED_RTNL, 2324 }, 2325 { 2326 .cmd = NL802154_CMD_SET_LBT_MODE, 2327 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2328 .doit = nl802154_set_lbt_mode, 2329 .flags = GENL_ADMIN_PERM, 2330 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2331 NL802154_FLAG_NEED_RTNL, 2332 }, 2333 { 2334 .cmd = NL802154_CMD_SET_ACKREQ_DEFAULT, 2335 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2336 .doit = nl802154_set_ackreq_default, 2337 .flags = GENL_ADMIN_PERM, 2338 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2339 NL802154_FLAG_NEED_RTNL, 2340 }, 2341 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL 2342 { 2343 .cmd = NL802154_CMD_SET_SEC_PARAMS, 2344 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2345 .doit = nl802154_set_llsec_params, 2346 .flags = GENL_ADMIN_PERM, 2347 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2348 NL802154_FLAG_NEED_RTNL, 2349 }, 2350 { 2351 .cmd = NL802154_CMD_GET_SEC_KEY, 2352 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2353 /* TODO .doit by matching key id? */ 2354 .dumpit = nl802154_dump_llsec_key, 2355 .flags = GENL_ADMIN_PERM, 2356 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2357 NL802154_FLAG_NEED_RTNL, 2358 }, 2359 { 2360 .cmd = NL802154_CMD_NEW_SEC_KEY, 2361 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2362 .doit = nl802154_add_llsec_key, 2363 .flags = GENL_ADMIN_PERM, 2364 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2365 NL802154_FLAG_NEED_RTNL, 2366 }, 2367 { 2368 .cmd = NL802154_CMD_DEL_SEC_KEY, 2369 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2370 .doit = nl802154_del_llsec_key, 2371 .flags = GENL_ADMIN_PERM, 2372 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2373 NL802154_FLAG_NEED_RTNL, 2374 }, 2375 /* TODO unique identifier must short+pan OR extended_addr */ 2376 { 2377 .cmd = NL802154_CMD_GET_SEC_DEV, 2378 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2379 /* TODO .doit by matching extended_addr? */ 2380 .dumpit = nl802154_dump_llsec_dev, 2381 .flags = GENL_ADMIN_PERM, 2382 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2383 NL802154_FLAG_NEED_RTNL, 2384 }, 2385 { 2386 .cmd = NL802154_CMD_NEW_SEC_DEV, 2387 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2388 .doit = nl802154_add_llsec_dev, 2389 .flags = GENL_ADMIN_PERM, 2390 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2391 NL802154_FLAG_NEED_RTNL, 2392 }, 2393 { 2394 .cmd = NL802154_CMD_DEL_SEC_DEV, 2395 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2396 .doit = nl802154_del_llsec_dev, 2397 .flags = GENL_ADMIN_PERM, 2398 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2399 NL802154_FLAG_NEED_RTNL, 2400 }, 2401 /* TODO remove complete devkey, put it as nested? */ 2402 { 2403 .cmd = NL802154_CMD_GET_SEC_DEVKEY, 2404 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2405 /* TODO doit by matching ??? */ 2406 .dumpit = nl802154_dump_llsec_devkey, 2407 .flags = GENL_ADMIN_PERM, 2408 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2409 NL802154_FLAG_NEED_RTNL, 2410 }, 2411 { 2412 .cmd = NL802154_CMD_NEW_SEC_DEVKEY, 2413 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2414 .doit = nl802154_add_llsec_devkey, 2415 .flags = GENL_ADMIN_PERM, 2416 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2417 NL802154_FLAG_NEED_RTNL, 2418 }, 2419 { 2420 .cmd = NL802154_CMD_DEL_SEC_DEVKEY, 2421 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2422 .doit = nl802154_del_llsec_devkey, 2423 .flags = GENL_ADMIN_PERM, 2424 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2425 NL802154_FLAG_NEED_RTNL, 2426 }, 2427 { 2428 .cmd = NL802154_CMD_GET_SEC_LEVEL, 2429 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2430 /* TODO .doit by matching frame_type? */ 2431 .dumpit = nl802154_dump_llsec_seclevel, 2432 .flags = GENL_ADMIN_PERM, 2433 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2434 NL802154_FLAG_NEED_RTNL, 2435 }, 2436 { 2437 .cmd = NL802154_CMD_NEW_SEC_LEVEL, 2438 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2439 .doit = nl802154_add_llsec_seclevel, 2440 .flags = GENL_ADMIN_PERM, 2441 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2442 NL802154_FLAG_NEED_RTNL, 2443 }, 2444 { 2445 .cmd = NL802154_CMD_DEL_SEC_LEVEL, 2446 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 2447 /* TODO match frame_type only? */ 2448 .doit = nl802154_del_llsec_seclevel, 2449 .flags = GENL_ADMIN_PERM, 2450 .internal_flags = NL802154_FLAG_NEED_NETDEV | 2451 NL802154_FLAG_NEED_RTNL, 2452 }, 2453 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */ 2454 }; 2455 2456 static struct genl_family nl802154_fam __ro_after_init = { 2457 .name = NL802154_GENL_NAME, /* have users key off the name instead */ 2458 .hdrsize = 0, /* no private header */ 2459 .version = 1, /* no particular meaning now */ 2460 .maxattr = NL802154_ATTR_MAX, 2461 .policy = nl802154_policy, 2462 .netnsok = true, 2463 .pre_doit = nl802154_pre_doit, 2464 .post_doit = nl802154_post_doit, 2465 .module = THIS_MODULE, 2466 .ops = nl802154_ops, 2467 .n_ops = ARRAY_SIZE(nl802154_ops), 2468 .mcgrps = nl802154_mcgrps, 2469 .n_mcgrps = ARRAY_SIZE(nl802154_mcgrps), 2470 }; 2471 2472 /* initialisation/exit functions */ 2473 int __init nl802154_init(void) 2474 { 2475 return genl_register_family(&nl802154_fam); 2476 } 2477 2478 void nl802154_exit(void) 2479 { 2480 genl_unregister_family(&nl802154_fam); 2481 } 2482