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