1/* 2 BlueZ - Bluetooth protocol stack for Linux 3 Copyright (c) 2000-2001, 2010, Code Aurora Forum. All rights reserved. 4 5 Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com> 6 7 This program is free software; you can redistribute it and/or modify 8 it under the terms of the GNU General Public License version 2 as 9 published by the Free Software Foundation; 10 11 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 12 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 13 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. 14 IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY 15 CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES 16 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 17 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 18 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 19 20 ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS, 21 COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS 22 SOFTWARE IS DISCLAIMED. 23*/ 24 25/* Bluetooth HCI event handling. */ 26 27#include <asm/unaligned.h> 28 29#include <net/bluetooth/bluetooth.h> 30#include <net/bluetooth/hci_core.h> 31#include <net/bluetooth/mgmt.h> 32 33#include "a2mp.h" 34#include "amp.h" 35#include "smp.h" 36 37/* Handle HCI Event packets */ 38 39static void hci_cc_inquiry_cancel(struct hci_dev *hdev, struct sk_buff *skb) 40{ 41 __u8 status = *((__u8 *) skb->data); 42 43 BT_DBG("%s status 0x%2.2x", hdev->name, status); 44 45 if (status) 46 return; 47 48 clear_bit(HCI_INQUIRY, &hdev->flags); 49 smp_mb__after_atomic(); /* wake_up_bit advises about this barrier */ 50 wake_up_bit(&hdev->flags, HCI_INQUIRY); 51 52 hci_dev_lock(hdev); 53 hci_discovery_set_state(hdev, DISCOVERY_STOPPED); 54 hci_dev_unlock(hdev); 55 56 hci_conn_check_pending(hdev); 57} 58 59static void hci_cc_periodic_inq(struct hci_dev *hdev, struct sk_buff *skb) 60{ 61 __u8 status = *((__u8 *) skb->data); 62 63 BT_DBG("%s status 0x%2.2x", hdev->name, status); 64 65 if (status) 66 return; 67 68 set_bit(HCI_PERIODIC_INQ, &hdev->dev_flags); 69} 70 71static void hci_cc_exit_periodic_inq(struct hci_dev *hdev, struct sk_buff *skb) 72{ 73 __u8 status = *((__u8 *) skb->data); 74 75 BT_DBG("%s status 0x%2.2x", hdev->name, status); 76 77 if (status) 78 return; 79 80 clear_bit(HCI_PERIODIC_INQ, &hdev->dev_flags); 81 82 hci_conn_check_pending(hdev); 83} 84 85static void hci_cc_remote_name_req_cancel(struct hci_dev *hdev, 86 struct sk_buff *skb) 87{ 88 BT_DBG("%s", hdev->name); 89} 90 91static void hci_cc_role_discovery(struct hci_dev *hdev, struct sk_buff *skb) 92{ 93 struct hci_rp_role_discovery *rp = (void *) skb->data; 94 struct hci_conn *conn; 95 96 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); 97 98 if (rp->status) 99 return; 100 101 hci_dev_lock(hdev); 102 103 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle)); 104 if (conn) 105 conn->role = rp->role; 106 107 hci_dev_unlock(hdev); 108} 109 110static void hci_cc_read_link_policy(struct hci_dev *hdev, struct sk_buff *skb) 111{ 112 struct hci_rp_read_link_policy *rp = (void *) skb->data; 113 struct hci_conn *conn; 114 115 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); 116 117 if (rp->status) 118 return; 119 120 hci_dev_lock(hdev); 121 122 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle)); 123 if (conn) 124 conn->link_policy = __le16_to_cpu(rp->policy); 125 126 hci_dev_unlock(hdev); 127} 128 129static void hci_cc_write_link_policy(struct hci_dev *hdev, struct sk_buff *skb) 130{ 131 struct hci_rp_write_link_policy *rp = (void *) skb->data; 132 struct hci_conn *conn; 133 void *sent; 134 135 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); 136 137 if (rp->status) 138 return; 139 140 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LINK_POLICY); 141 if (!sent) 142 return; 143 144 hci_dev_lock(hdev); 145 146 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle)); 147 if (conn) 148 conn->link_policy = get_unaligned_le16(sent + 2); 149 150 hci_dev_unlock(hdev); 151} 152 153static void hci_cc_read_def_link_policy(struct hci_dev *hdev, 154 struct sk_buff *skb) 155{ 156 struct hci_rp_read_def_link_policy *rp = (void *) skb->data; 157 158 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); 159 160 if (rp->status) 161 return; 162 163 hdev->link_policy = __le16_to_cpu(rp->policy); 164} 165 166static void hci_cc_write_def_link_policy(struct hci_dev *hdev, 167 struct sk_buff *skb) 168{ 169 __u8 status = *((__u8 *) skb->data); 170 void *sent; 171 172 BT_DBG("%s status 0x%2.2x", hdev->name, status); 173 174 if (status) 175 return; 176 177 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_DEF_LINK_POLICY); 178 if (!sent) 179 return; 180 181 hdev->link_policy = get_unaligned_le16(sent); 182} 183 184static void hci_cc_reset(struct hci_dev *hdev, struct sk_buff *skb) 185{ 186 __u8 status = *((__u8 *) skb->data); 187 188 BT_DBG("%s status 0x%2.2x", hdev->name, status); 189 190 clear_bit(HCI_RESET, &hdev->flags); 191 192 /* Reset all non-persistent flags */ 193 hdev->dev_flags &= ~HCI_PERSISTENT_MASK; 194 195 hdev->discovery.state = DISCOVERY_STOPPED; 196 hdev->inq_tx_power = HCI_TX_POWER_INVALID; 197 hdev->adv_tx_power = HCI_TX_POWER_INVALID; 198 199 memset(hdev->adv_data, 0, sizeof(hdev->adv_data)); 200 hdev->adv_data_len = 0; 201 202 memset(hdev->scan_rsp_data, 0, sizeof(hdev->scan_rsp_data)); 203 hdev->scan_rsp_data_len = 0; 204 205 hdev->le_scan_type = LE_SCAN_PASSIVE; 206 207 hdev->ssp_debug_mode = 0; 208} 209 210static void hci_cc_write_local_name(struct hci_dev *hdev, struct sk_buff *skb) 211{ 212 __u8 status = *((__u8 *) skb->data); 213 void *sent; 214 215 BT_DBG("%s status 0x%2.2x", hdev->name, status); 216 217 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LOCAL_NAME); 218 if (!sent) 219 return; 220 221 hci_dev_lock(hdev); 222 223 if (test_bit(HCI_MGMT, &hdev->dev_flags)) 224 mgmt_set_local_name_complete(hdev, sent, status); 225 else if (!status) 226 memcpy(hdev->dev_name, sent, HCI_MAX_NAME_LENGTH); 227 228 hci_dev_unlock(hdev); 229} 230 231static void hci_cc_read_local_name(struct hci_dev *hdev, struct sk_buff *skb) 232{ 233 struct hci_rp_read_local_name *rp = (void *) skb->data; 234 235 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); 236 237 if (rp->status) 238 return; 239 240 if (test_bit(HCI_SETUP, &hdev->dev_flags)) 241 memcpy(hdev->dev_name, rp->name, HCI_MAX_NAME_LENGTH); 242} 243 244static void hci_cc_write_auth_enable(struct hci_dev *hdev, struct sk_buff *skb) 245{ 246 __u8 status = *((__u8 *) skb->data); 247 void *sent; 248 249 BT_DBG("%s status 0x%2.2x", hdev->name, status); 250 251 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_AUTH_ENABLE); 252 if (!sent) 253 return; 254 255 if (!status) { 256 __u8 param = *((__u8 *) sent); 257 258 if (param == AUTH_ENABLED) 259 set_bit(HCI_AUTH, &hdev->flags); 260 else 261 clear_bit(HCI_AUTH, &hdev->flags); 262 } 263 264 if (test_bit(HCI_MGMT, &hdev->dev_flags)) 265 mgmt_auth_enable_complete(hdev, status); 266} 267 268static void hci_cc_write_encrypt_mode(struct hci_dev *hdev, struct sk_buff *skb) 269{ 270 __u8 status = *((__u8 *) skb->data); 271 __u8 param; 272 void *sent; 273 274 BT_DBG("%s status 0x%2.2x", hdev->name, status); 275 276 if (status) 277 return; 278 279 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_ENCRYPT_MODE); 280 if (!sent) 281 return; 282 283 param = *((__u8 *) sent); 284 285 if (param) 286 set_bit(HCI_ENCRYPT, &hdev->flags); 287 else 288 clear_bit(HCI_ENCRYPT, &hdev->flags); 289} 290 291static void hci_cc_write_scan_enable(struct hci_dev *hdev, struct sk_buff *skb) 292{ 293 __u8 status = *((__u8 *) skb->data); 294 __u8 param; 295 void *sent; 296 297 BT_DBG("%s status 0x%2.2x", hdev->name, status); 298 299 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SCAN_ENABLE); 300 if (!sent) 301 return; 302 303 param = *((__u8 *) sent); 304 305 hci_dev_lock(hdev); 306 307 if (status) { 308 hdev->discov_timeout = 0; 309 goto done; 310 } 311 312 if (param & SCAN_INQUIRY) 313 set_bit(HCI_ISCAN, &hdev->flags); 314 else 315 clear_bit(HCI_ISCAN, &hdev->flags); 316 317 if (param & SCAN_PAGE) 318 set_bit(HCI_PSCAN, &hdev->flags); 319 else 320 clear_bit(HCI_PSCAN, &hdev->flags); 321 322done: 323 hci_dev_unlock(hdev); 324} 325 326static void hci_cc_read_class_of_dev(struct hci_dev *hdev, struct sk_buff *skb) 327{ 328 struct hci_rp_read_class_of_dev *rp = (void *) skb->data; 329 330 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); 331 332 if (rp->status) 333 return; 334 335 memcpy(hdev->dev_class, rp->dev_class, 3); 336 337 BT_DBG("%s class 0x%.2x%.2x%.2x", hdev->name, 338 hdev->dev_class[2], hdev->dev_class[1], hdev->dev_class[0]); 339} 340 341static void hci_cc_write_class_of_dev(struct hci_dev *hdev, struct sk_buff *skb) 342{ 343 __u8 status = *((__u8 *) skb->data); 344 void *sent; 345 346 BT_DBG("%s status 0x%2.2x", hdev->name, status); 347 348 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_CLASS_OF_DEV); 349 if (!sent) 350 return; 351 352 hci_dev_lock(hdev); 353 354 if (status == 0) 355 memcpy(hdev->dev_class, sent, 3); 356 357 if (test_bit(HCI_MGMT, &hdev->dev_flags)) 358 mgmt_set_class_of_dev_complete(hdev, sent, status); 359 360 hci_dev_unlock(hdev); 361} 362 363static void hci_cc_read_voice_setting(struct hci_dev *hdev, struct sk_buff *skb) 364{ 365 struct hci_rp_read_voice_setting *rp = (void *) skb->data; 366 __u16 setting; 367 368 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); 369 370 if (rp->status) 371 return; 372 373 setting = __le16_to_cpu(rp->voice_setting); 374 375 if (hdev->voice_setting == setting) 376 return; 377 378 hdev->voice_setting = setting; 379 380 BT_DBG("%s voice setting 0x%4.4x", hdev->name, setting); 381 382 if (hdev->notify) 383 hdev->notify(hdev, HCI_NOTIFY_VOICE_SETTING); 384} 385 386static void hci_cc_write_voice_setting(struct hci_dev *hdev, 387 struct sk_buff *skb) 388{ 389 __u8 status = *((__u8 *) skb->data); 390 __u16 setting; 391 void *sent; 392 393 BT_DBG("%s status 0x%2.2x", hdev->name, status); 394 395 if (status) 396 return; 397 398 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_VOICE_SETTING); 399 if (!sent) 400 return; 401 402 setting = get_unaligned_le16(sent); 403 404 if (hdev->voice_setting == setting) 405 return; 406 407 hdev->voice_setting = setting; 408 409 BT_DBG("%s voice setting 0x%4.4x", hdev->name, setting); 410 411 if (hdev->notify) 412 hdev->notify(hdev, HCI_NOTIFY_VOICE_SETTING); 413} 414 415static void hci_cc_read_num_supported_iac(struct hci_dev *hdev, 416 struct sk_buff *skb) 417{ 418 struct hci_rp_read_num_supported_iac *rp = (void *) skb->data; 419 420 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); 421 422 if (rp->status) 423 return; 424 425 hdev->num_iac = rp->num_iac; 426 427 BT_DBG("%s num iac %d", hdev->name, hdev->num_iac); 428} 429 430static void hci_cc_write_ssp_mode(struct hci_dev *hdev, struct sk_buff *skb) 431{ 432 __u8 status = *((__u8 *) skb->data); 433 struct hci_cp_write_ssp_mode *sent; 434 435 BT_DBG("%s status 0x%2.2x", hdev->name, status); 436 437 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SSP_MODE); 438 if (!sent) 439 return; 440 441 if (!status) { 442 if (sent->mode) 443 hdev->features[1][0] |= LMP_HOST_SSP; 444 else 445 hdev->features[1][0] &= ~LMP_HOST_SSP; 446 } 447 448 if (test_bit(HCI_MGMT, &hdev->dev_flags)) 449 mgmt_ssp_enable_complete(hdev, sent->mode, status); 450 else if (!status) { 451 if (sent->mode) 452 set_bit(HCI_SSP_ENABLED, &hdev->dev_flags); 453 else 454 clear_bit(HCI_SSP_ENABLED, &hdev->dev_flags); 455 } 456} 457 458static void hci_cc_write_sc_support(struct hci_dev *hdev, struct sk_buff *skb) 459{ 460 u8 status = *((u8 *) skb->data); 461 struct hci_cp_write_sc_support *sent; 462 463 BT_DBG("%s status 0x%2.2x", hdev->name, status); 464 465 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SC_SUPPORT); 466 if (!sent) 467 return; 468 469 if (!status) { 470 if (sent->support) 471 hdev->features[1][0] |= LMP_HOST_SC; 472 else 473 hdev->features[1][0] &= ~LMP_HOST_SC; 474 } 475 476 if (test_bit(HCI_MGMT, &hdev->dev_flags)) 477 mgmt_sc_enable_complete(hdev, sent->support, status); 478 else if (!status) { 479 if (sent->support) 480 set_bit(HCI_SC_ENABLED, &hdev->dev_flags); 481 else 482 clear_bit(HCI_SC_ENABLED, &hdev->dev_flags); 483 } 484} 485 486static void hci_cc_read_local_version(struct hci_dev *hdev, struct sk_buff *skb) 487{ 488 struct hci_rp_read_local_version *rp = (void *) skb->data; 489 490 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); 491 492 if (rp->status) 493 return; 494 495 if (test_bit(HCI_SETUP, &hdev->dev_flags)) { 496 hdev->hci_ver = rp->hci_ver; 497 hdev->hci_rev = __le16_to_cpu(rp->hci_rev); 498 hdev->lmp_ver = rp->lmp_ver; 499 hdev->manufacturer = __le16_to_cpu(rp->manufacturer); 500 hdev->lmp_subver = __le16_to_cpu(rp->lmp_subver); 501 } 502} 503 504static void hci_cc_read_local_commands(struct hci_dev *hdev, 505 struct sk_buff *skb) 506{ 507 struct hci_rp_read_local_commands *rp = (void *) skb->data; 508 509 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); 510 511 if (rp->status) 512 return; 513 514 if (test_bit(HCI_SETUP, &hdev->dev_flags)) 515 memcpy(hdev->commands, rp->commands, sizeof(hdev->commands)); 516} 517 518static void hci_cc_read_local_features(struct hci_dev *hdev, 519 struct sk_buff *skb) 520{ 521 struct hci_rp_read_local_features *rp = (void *) skb->data; 522 523 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); 524 525 if (rp->status) 526 return; 527 528 memcpy(hdev->features, rp->features, 8); 529 530 /* Adjust default settings according to features 531 * supported by device. */ 532 533 if (hdev->features[0][0] & LMP_3SLOT) 534 hdev->pkt_type |= (HCI_DM3 | HCI_DH3); 535 536 if (hdev->features[0][0] & LMP_5SLOT) 537 hdev->pkt_type |= (HCI_DM5 | HCI_DH5); 538 539 if (hdev->features[0][1] & LMP_HV2) { 540 hdev->pkt_type |= (HCI_HV2); 541 hdev->esco_type |= (ESCO_HV2); 542 } 543 544 if (hdev->features[0][1] & LMP_HV3) { 545 hdev->pkt_type |= (HCI_HV3); 546 hdev->esco_type |= (ESCO_HV3); 547 } 548 549 if (lmp_esco_capable(hdev)) 550 hdev->esco_type |= (ESCO_EV3); 551 552 if (hdev->features[0][4] & LMP_EV4) 553 hdev->esco_type |= (ESCO_EV4); 554 555 if (hdev->features[0][4] & LMP_EV5) 556 hdev->esco_type |= (ESCO_EV5); 557 558 if (hdev->features[0][5] & LMP_EDR_ESCO_2M) 559 hdev->esco_type |= (ESCO_2EV3); 560 561 if (hdev->features[0][5] & LMP_EDR_ESCO_3M) 562 hdev->esco_type |= (ESCO_3EV3); 563 564 if (hdev->features[0][5] & LMP_EDR_3S_ESCO) 565 hdev->esco_type |= (ESCO_2EV5 | ESCO_3EV5); 566} 567 568static void hci_cc_read_local_ext_features(struct hci_dev *hdev, 569 struct sk_buff *skb) 570{ 571 struct hci_rp_read_local_ext_features *rp = (void *) skb->data; 572 573 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); 574 575 if (rp->status) 576 return; 577 578 if (hdev->max_page < rp->max_page) 579 hdev->max_page = rp->max_page; 580 581 if (rp->page < HCI_MAX_PAGES) 582 memcpy(hdev->features[rp->page], rp->features, 8); 583} 584 585static void hci_cc_read_flow_control_mode(struct hci_dev *hdev, 586 struct sk_buff *skb) 587{ 588 struct hci_rp_read_flow_control_mode *rp = (void *) skb->data; 589 590 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); 591 592 if (rp->status) 593 return; 594 595 hdev->flow_ctl_mode = rp->mode; 596} 597 598static void hci_cc_read_buffer_size(struct hci_dev *hdev, struct sk_buff *skb) 599{ 600 struct hci_rp_read_buffer_size *rp = (void *) skb->data; 601 602 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); 603 604 if (rp->status) 605 return; 606 607 hdev->acl_mtu = __le16_to_cpu(rp->acl_mtu); 608 hdev->sco_mtu = rp->sco_mtu; 609 hdev->acl_pkts = __le16_to_cpu(rp->acl_max_pkt); 610 hdev->sco_pkts = __le16_to_cpu(rp->sco_max_pkt); 611 612 if (test_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks)) { 613 hdev->sco_mtu = 64; 614 hdev->sco_pkts = 8; 615 } 616 617 hdev->acl_cnt = hdev->acl_pkts; 618 hdev->sco_cnt = hdev->sco_pkts; 619 620 BT_DBG("%s acl mtu %d:%d sco mtu %d:%d", hdev->name, hdev->acl_mtu, 621 hdev->acl_pkts, hdev->sco_mtu, hdev->sco_pkts); 622} 623 624static void hci_cc_read_bd_addr(struct hci_dev *hdev, struct sk_buff *skb) 625{ 626 struct hci_rp_read_bd_addr *rp = (void *) skb->data; 627 628 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); 629 630 if (rp->status) 631 return; 632 633 if (test_bit(HCI_INIT, &hdev->flags)) 634 bacpy(&hdev->bdaddr, &rp->bdaddr); 635 636 if (test_bit(HCI_SETUP, &hdev->dev_flags)) 637 bacpy(&hdev->setup_addr, &rp->bdaddr); 638} 639 640static void hci_cc_read_page_scan_activity(struct hci_dev *hdev, 641 struct sk_buff *skb) 642{ 643 struct hci_rp_read_page_scan_activity *rp = (void *) skb->data; 644 645 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); 646 647 if (rp->status) 648 return; 649 650 if (test_bit(HCI_INIT, &hdev->flags)) { 651 hdev->page_scan_interval = __le16_to_cpu(rp->interval); 652 hdev->page_scan_window = __le16_to_cpu(rp->window); 653 } 654} 655 656static void hci_cc_write_page_scan_activity(struct hci_dev *hdev, 657 struct sk_buff *skb) 658{ 659 u8 status = *((u8 *) skb->data); 660 struct hci_cp_write_page_scan_activity *sent; 661 662 BT_DBG("%s status 0x%2.2x", hdev->name, status); 663 664 if (status) 665 return; 666 667 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_PAGE_SCAN_ACTIVITY); 668 if (!sent) 669 return; 670 671 hdev->page_scan_interval = __le16_to_cpu(sent->interval); 672 hdev->page_scan_window = __le16_to_cpu(sent->window); 673} 674 675static void hci_cc_read_page_scan_type(struct hci_dev *hdev, 676 struct sk_buff *skb) 677{ 678 struct hci_rp_read_page_scan_type *rp = (void *) skb->data; 679 680 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); 681 682 if (rp->status) 683 return; 684 685 if (test_bit(HCI_INIT, &hdev->flags)) 686 hdev->page_scan_type = rp->type; 687} 688 689static void hci_cc_write_page_scan_type(struct hci_dev *hdev, 690 struct sk_buff *skb) 691{ 692 u8 status = *((u8 *) skb->data); 693 u8 *type; 694 695 BT_DBG("%s status 0x%2.2x", hdev->name, status); 696 697 if (status) 698 return; 699 700 type = hci_sent_cmd_data(hdev, HCI_OP_WRITE_PAGE_SCAN_TYPE); 701 if (type) 702 hdev->page_scan_type = *type; 703} 704 705static void hci_cc_read_data_block_size(struct hci_dev *hdev, 706 struct sk_buff *skb) 707{ 708 struct hci_rp_read_data_block_size *rp = (void *) skb->data; 709 710 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); 711 712 if (rp->status) 713 return; 714 715 hdev->block_mtu = __le16_to_cpu(rp->max_acl_len); 716 hdev->block_len = __le16_to_cpu(rp->block_len); 717 hdev->num_blocks = __le16_to_cpu(rp->num_blocks); 718 719 hdev->block_cnt = hdev->num_blocks; 720 721 BT_DBG("%s blk mtu %d cnt %d len %d", hdev->name, hdev->block_mtu, 722 hdev->block_cnt, hdev->block_len); 723} 724 725static void hci_cc_read_clock(struct hci_dev *hdev, struct sk_buff *skb) 726{ 727 struct hci_rp_read_clock *rp = (void *) skb->data; 728 struct hci_cp_read_clock *cp; 729 struct hci_conn *conn; 730 731 BT_DBG("%s", hdev->name); 732 733 if (skb->len < sizeof(*rp)) 734 return; 735 736 if (rp->status) 737 return; 738 739 hci_dev_lock(hdev); 740 741 cp = hci_sent_cmd_data(hdev, HCI_OP_READ_CLOCK); 742 if (!cp) 743 goto unlock; 744 745 if (cp->which == 0x00) { 746 hdev->clock = le32_to_cpu(rp->clock); 747 goto unlock; 748 } 749 750 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle)); 751 if (conn) { 752 conn->clock = le32_to_cpu(rp->clock); 753 conn->clock_accuracy = le16_to_cpu(rp->accuracy); 754 } 755 756unlock: 757 hci_dev_unlock(hdev); 758} 759 760static void hci_cc_read_local_amp_info(struct hci_dev *hdev, 761 struct sk_buff *skb) 762{ 763 struct hci_rp_read_local_amp_info *rp = (void *) skb->data; 764 765 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); 766 767 if (rp->status) 768 goto a2mp_rsp; 769 770 hdev->amp_status = rp->amp_status; 771 hdev->amp_total_bw = __le32_to_cpu(rp->total_bw); 772 hdev->amp_max_bw = __le32_to_cpu(rp->max_bw); 773 hdev->amp_min_latency = __le32_to_cpu(rp->min_latency); 774 hdev->amp_max_pdu = __le32_to_cpu(rp->max_pdu); 775 hdev->amp_type = rp->amp_type; 776 hdev->amp_pal_cap = __le16_to_cpu(rp->pal_cap); 777 hdev->amp_assoc_size = __le16_to_cpu(rp->max_assoc_size); 778 hdev->amp_be_flush_to = __le32_to_cpu(rp->be_flush_to); 779 hdev->amp_max_flush_to = __le32_to_cpu(rp->max_flush_to); 780 781a2mp_rsp: 782 a2mp_send_getinfo_rsp(hdev); 783} 784 785static void hci_cc_read_local_amp_assoc(struct hci_dev *hdev, 786 struct sk_buff *skb) 787{ 788 struct hci_rp_read_local_amp_assoc *rp = (void *) skb->data; 789 struct amp_assoc *assoc = &hdev->loc_assoc; 790 size_t rem_len, frag_len; 791 792 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); 793 794 if (rp->status) 795 goto a2mp_rsp; 796 797 frag_len = skb->len - sizeof(*rp); 798 rem_len = __le16_to_cpu(rp->rem_len); 799 800 if (rem_len > frag_len) { 801 BT_DBG("frag_len %zu rem_len %zu", frag_len, rem_len); 802 803 memcpy(assoc->data + assoc->offset, rp->frag, frag_len); 804 assoc->offset += frag_len; 805 806 /* Read other fragments */ 807 amp_read_loc_assoc_frag(hdev, rp->phy_handle); 808 809 return; 810 } 811 812 memcpy(assoc->data + assoc->offset, rp->frag, rem_len); 813 assoc->len = assoc->offset + rem_len; 814 assoc->offset = 0; 815 816a2mp_rsp: 817 /* Send A2MP Rsp when all fragments are received */ 818 a2mp_send_getampassoc_rsp(hdev, rp->status); 819 a2mp_send_create_phy_link_req(hdev, rp->status); 820} 821 822static void hci_cc_read_inq_rsp_tx_power(struct hci_dev *hdev, 823 struct sk_buff *skb) 824{ 825 struct hci_rp_read_inq_rsp_tx_power *rp = (void *) skb->data; 826 827 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); 828 829 if (rp->status) 830 return; 831 832 hdev->inq_tx_power = rp->tx_power; 833} 834 835static void hci_cc_pin_code_reply(struct hci_dev *hdev, struct sk_buff *skb) 836{ 837 struct hci_rp_pin_code_reply *rp = (void *) skb->data; 838 struct hci_cp_pin_code_reply *cp; 839 struct hci_conn *conn; 840 841 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); 842 843 hci_dev_lock(hdev); 844 845 if (test_bit(HCI_MGMT, &hdev->dev_flags)) 846 mgmt_pin_code_reply_complete(hdev, &rp->bdaddr, rp->status); 847 848 if (rp->status) 849 goto unlock; 850 851 cp = hci_sent_cmd_data(hdev, HCI_OP_PIN_CODE_REPLY); 852 if (!cp) 853 goto unlock; 854 855 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr); 856 if (conn) 857 conn->pin_length = cp->pin_len; 858 859unlock: 860 hci_dev_unlock(hdev); 861} 862 863static void hci_cc_pin_code_neg_reply(struct hci_dev *hdev, struct sk_buff *skb) 864{ 865 struct hci_rp_pin_code_neg_reply *rp = (void *) skb->data; 866 867 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); 868 869 hci_dev_lock(hdev); 870 871 if (test_bit(HCI_MGMT, &hdev->dev_flags)) 872 mgmt_pin_code_neg_reply_complete(hdev, &rp->bdaddr, 873 rp->status); 874 875 hci_dev_unlock(hdev); 876} 877 878static void hci_cc_le_read_buffer_size(struct hci_dev *hdev, 879 struct sk_buff *skb) 880{ 881 struct hci_rp_le_read_buffer_size *rp = (void *) skb->data; 882 883 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); 884 885 if (rp->status) 886 return; 887 888 hdev->le_mtu = __le16_to_cpu(rp->le_mtu); 889 hdev->le_pkts = rp->le_max_pkt; 890 891 hdev->le_cnt = hdev->le_pkts; 892 893 BT_DBG("%s le mtu %d:%d", hdev->name, hdev->le_mtu, hdev->le_pkts); 894} 895 896static void hci_cc_le_read_local_features(struct hci_dev *hdev, 897 struct sk_buff *skb) 898{ 899 struct hci_rp_le_read_local_features *rp = (void *) skb->data; 900 901 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); 902 903 if (rp->status) 904 return; 905 906 memcpy(hdev->le_features, rp->features, 8); 907} 908 909static void hci_cc_le_read_adv_tx_power(struct hci_dev *hdev, 910 struct sk_buff *skb) 911{ 912 struct hci_rp_le_read_adv_tx_power *rp = (void *) skb->data; 913 914 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); 915 916 if (rp->status) 917 return; 918 919 hdev->adv_tx_power = rp->tx_power; 920} 921 922static void hci_cc_user_confirm_reply(struct hci_dev *hdev, struct sk_buff *skb) 923{ 924 struct hci_rp_user_confirm_reply *rp = (void *) skb->data; 925 926 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); 927 928 hci_dev_lock(hdev); 929 930 if (test_bit(HCI_MGMT, &hdev->dev_flags)) 931 mgmt_user_confirm_reply_complete(hdev, &rp->bdaddr, ACL_LINK, 0, 932 rp->status); 933 934 hci_dev_unlock(hdev); 935} 936 937static void hci_cc_user_confirm_neg_reply(struct hci_dev *hdev, 938 struct sk_buff *skb) 939{ 940 struct hci_rp_user_confirm_reply *rp = (void *) skb->data; 941 942 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); 943 944 hci_dev_lock(hdev); 945 946 if (test_bit(HCI_MGMT, &hdev->dev_flags)) 947 mgmt_user_confirm_neg_reply_complete(hdev, &rp->bdaddr, 948 ACL_LINK, 0, rp->status); 949 950 hci_dev_unlock(hdev); 951} 952 953static void hci_cc_user_passkey_reply(struct hci_dev *hdev, struct sk_buff *skb) 954{ 955 struct hci_rp_user_confirm_reply *rp = (void *) skb->data; 956 957 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); 958 959 hci_dev_lock(hdev); 960 961 if (test_bit(HCI_MGMT, &hdev->dev_flags)) 962 mgmt_user_passkey_reply_complete(hdev, &rp->bdaddr, ACL_LINK, 963 0, rp->status); 964 965 hci_dev_unlock(hdev); 966} 967 968static void hci_cc_user_passkey_neg_reply(struct hci_dev *hdev, 969 struct sk_buff *skb) 970{ 971 struct hci_rp_user_confirm_reply *rp = (void *) skb->data; 972 973 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); 974 975 hci_dev_lock(hdev); 976 977 if (test_bit(HCI_MGMT, &hdev->dev_flags)) 978 mgmt_user_passkey_neg_reply_complete(hdev, &rp->bdaddr, 979 ACL_LINK, 0, rp->status); 980 981 hci_dev_unlock(hdev); 982} 983 984static void hci_cc_read_local_oob_data(struct hci_dev *hdev, 985 struct sk_buff *skb) 986{ 987 struct hci_rp_read_local_oob_data *rp = (void *) skb->data; 988 989 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); 990 991 hci_dev_lock(hdev); 992 mgmt_read_local_oob_data_complete(hdev, rp->hash, rp->randomizer, 993 NULL, NULL, rp->status); 994 hci_dev_unlock(hdev); 995} 996 997static void hci_cc_read_local_oob_ext_data(struct hci_dev *hdev, 998 struct sk_buff *skb) 999{ 1000 struct hci_rp_read_local_oob_ext_data *rp = (void *) skb->data; 1001 1002 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); 1003 1004 hci_dev_lock(hdev); 1005 mgmt_read_local_oob_data_complete(hdev, rp->hash192, rp->randomizer192, 1006 rp->hash256, rp->randomizer256, 1007 rp->status); 1008 hci_dev_unlock(hdev); 1009} 1010 1011 1012static void hci_cc_le_set_random_addr(struct hci_dev *hdev, struct sk_buff *skb) 1013{ 1014 __u8 status = *((__u8 *) skb->data); 1015 bdaddr_t *sent; 1016 1017 BT_DBG("%s status 0x%2.2x", hdev->name, status); 1018 1019 if (status) 1020 return; 1021 1022 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_RANDOM_ADDR); 1023 if (!sent) 1024 return; 1025 1026 hci_dev_lock(hdev); 1027 1028 bacpy(&hdev->random_addr, sent); 1029 1030 hci_dev_unlock(hdev); 1031} 1032 1033static void hci_cc_le_set_adv_enable(struct hci_dev *hdev, struct sk_buff *skb) 1034{ 1035 __u8 *sent, status = *((__u8 *) skb->data); 1036 1037 BT_DBG("%s status 0x%2.2x", hdev->name, status); 1038 1039 if (status) 1040 return; 1041 1042 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADV_ENABLE); 1043 if (!sent) 1044 return; 1045 1046 hci_dev_lock(hdev); 1047 1048 /* If we're doing connection initation as peripheral. Set a 1049 * timeout in case something goes wrong. 1050 */ 1051 if (*sent) { 1052 struct hci_conn *conn; 1053 1054 set_bit(HCI_LE_ADV, &hdev->dev_flags); 1055 1056 conn = hci_conn_hash_lookup_state(hdev, LE_LINK, BT_CONNECT); 1057 if (conn) 1058 queue_delayed_work(hdev->workqueue, 1059 &conn->le_conn_timeout, 1060 conn->conn_timeout); 1061 } else { 1062 clear_bit(HCI_LE_ADV, &hdev->dev_flags); 1063 } 1064 1065 hci_dev_unlock(hdev); 1066} 1067 1068static void hci_cc_le_set_scan_param(struct hci_dev *hdev, struct sk_buff *skb) 1069{ 1070 struct hci_cp_le_set_scan_param *cp; 1071 __u8 status = *((__u8 *) skb->data); 1072 1073 BT_DBG("%s status 0x%2.2x", hdev->name, status); 1074 1075 if (status) 1076 return; 1077 1078 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_SCAN_PARAM); 1079 if (!cp) 1080 return; 1081 1082 hci_dev_lock(hdev); 1083 1084 hdev->le_scan_type = cp->type; 1085 1086 hci_dev_unlock(hdev); 1087} 1088 1089static bool has_pending_adv_report(struct hci_dev *hdev) 1090{ 1091 struct discovery_state *d = &hdev->discovery; 1092 1093 return bacmp(&d->last_adv_addr, BDADDR_ANY); 1094} 1095 1096static void clear_pending_adv_report(struct hci_dev *hdev) 1097{ 1098 struct discovery_state *d = &hdev->discovery; 1099 1100 bacpy(&d->last_adv_addr, BDADDR_ANY); 1101 d->last_adv_data_len = 0; 1102} 1103 1104static void store_pending_adv_report(struct hci_dev *hdev, bdaddr_t *bdaddr, 1105 u8 bdaddr_type, s8 rssi, u32 flags, 1106 u8 *data, u8 len) 1107{ 1108 struct discovery_state *d = &hdev->discovery; 1109 1110 bacpy(&d->last_adv_addr, bdaddr); 1111 d->last_adv_addr_type = bdaddr_type; 1112 d->last_adv_rssi = rssi; 1113 d->last_adv_flags = flags; 1114 memcpy(d->last_adv_data, data, len); 1115 d->last_adv_data_len = len; 1116} 1117 1118static void hci_cc_le_set_scan_enable(struct hci_dev *hdev, 1119 struct sk_buff *skb) 1120{ 1121 struct hci_cp_le_set_scan_enable *cp; 1122 __u8 status = *((__u8 *) skb->data); 1123 1124 BT_DBG("%s status 0x%2.2x", hdev->name, status); 1125 1126 if (status) 1127 return; 1128 1129 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_SCAN_ENABLE); 1130 if (!cp) 1131 return; 1132 1133 switch (cp->enable) { 1134 case LE_SCAN_ENABLE: 1135 set_bit(HCI_LE_SCAN, &hdev->dev_flags); 1136 if (hdev->le_scan_type == LE_SCAN_ACTIVE) 1137 clear_pending_adv_report(hdev); 1138 break; 1139 1140 case LE_SCAN_DISABLE: 1141 /* We do this here instead of when setting DISCOVERY_STOPPED 1142 * since the latter would potentially require waiting for 1143 * inquiry to stop too. 1144 */ 1145 if (has_pending_adv_report(hdev)) { 1146 struct discovery_state *d = &hdev->discovery; 1147 1148 mgmt_device_found(hdev, &d->last_adv_addr, LE_LINK, 1149 d->last_adv_addr_type, NULL, 1150 d->last_adv_rssi, d->last_adv_flags, 1151 d->last_adv_data, 1152 d->last_adv_data_len, NULL, 0); 1153 } 1154 1155 /* Cancel this timer so that we don't try to disable scanning 1156 * when it's already disabled. 1157 */ 1158 cancel_delayed_work(&hdev->le_scan_disable); 1159 1160 clear_bit(HCI_LE_SCAN, &hdev->dev_flags); 1161 1162 /* The HCI_LE_SCAN_INTERRUPTED flag indicates that we 1163 * interrupted scanning due to a connect request. Mark 1164 * therefore discovery as stopped. If this was not 1165 * because of a connect request advertising might have 1166 * been disabled because of active scanning, so 1167 * re-enable it again if necessary. 1168 */ 1169 if (test_and_clear_bit(HCI_LE_SCAN_INTERRUPTED, 1170 &hdev->dev_flags)) 1171 hci_discovery_set_state(hdev, DISCOVERY_STOPPED); 1172 else if (!test_bit(HCI_LE_ADV, &hdev->dev_flags) && 1173 hdev->discovery.state == DISCOVERY_FINDING) 1174 mgmt_reenable_advertising(hdev); 1175 1176 break; 1177 1178 default: 1179 BT_ERR("Used reserved LE_Scan_Enable param %d", cp->enable); 1180 break; 1181 } 1182} 1183 1184static void hci_cc_le_read_white_list_size(struct hci_dev *hdev, 1185 struct sk_buff *skb) 1186{ 1187 struct hci_rp_le_read_white_list_size *rp = (void *) skb->data; 1188 1189 BT_DBG("%s status 0x%2.2x size %u", hdev->name, rp->status, rp->size); 1190 1191 if (rp->status) 1192 return; 1193 1194 hdev->le_white_list_size = rp->size; 1195} 1196 1197static void hci_cc_le_clear_white_list(struct hci_dev *hdev, 1198 struct sk_buff *skb) 1199{ 1200 __u8 status = *((__u8 *) skb->data); 1201 1202 BT_DBG("%s status 0x%2.2x", hdev->name, status); 1203 1204 if (status) 1205 return; 1206 1207 hci_bdaddr_list_clear(&hdev->le_white_list); 1208} 1209 1210static void hci_cc_le_add_to_white_list(struct hci_dev *hdev, 1211 struct sk_buff *skb) 1212{ 1213 struct hci_cp_le_add_to_white_list *sent; 1214 __u8 status = *((__u8 *) skb->data); 1215 1216 BT_DBG("%s status 0x%2.2x", hdev->name, status); 1217 1218 if (status) 1219 return; 1220 1221 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_ADD_TO_WHITE_LIST); 1222 if (!sent) 1223 return; 1224 1225 hci_bdaddr_list_add(&hdev->le_white_list, &sent->bdaddr, 1226 sent->bdaddr_type); 1227} 1228 1229static void hci_cc_le_del_from_white_list(struct hci_dev *hdev, 1230 struct sk_buff *skb) 1231{ 1232 struct hci_cp_le_del_from_white_list *sent; 1233 __u8 status = *((__u8 *) skb->data); 1234 1235 BT_DBG("%s status 0x%2.2x", hdev->name, status); 1236 1237 if (status) 1238 return; 1239 1240 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_DEL_FROM_WHITE_LIST); 1241 if (!sent) 1242 return; 1243 1244 hci_bdaddr_list_del(&hdev->le_white_list, &sent->bdaddr, 1245 sent->bdaddr_type); 1246} 1247 1248static void hci_cc_le_read_supported_states(struct hci_dev *hdev, 1249 struct sk_buff *skb) 1250{ 1251 struct hci_rp_le_read_supported_states *rp = (void *) skb->data; 1252 1253 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); 1254 1255 if (rp->status) 1256 return; 1257 1258 memcpy(hdev->le_states, rp->le_states, 8); 1259} 1260 1261static void hci_cc_write_le_host_supported(struct hci_dev *hdev, 1262 struct sk_buff *skb) 1263{ 1264 struct hci_cp_write_le_host_supported *sent; 1265 __u8 status = *((__u8 *) skb->data); 1266 1267 BT_DBG("%s status 0x%2.2x", hdev->name, status); 1268 1269 if (status) 1270 return; 1271 1272 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LE_HOST_SUPPORTED); 1273 if (!sent) 1274 return; 1275 1276 if (sent->le) { 1277 hdev->features[1][0] |= LMP_HOST_LE; 1278 set_bit(HCI_LE_ENABLED, &hdev->dev_flags); 1279 } else { 1280 hdev->features[1][0] &= ~LMP_HOST_LE; 1281 clear_bit(HCI_LE_ENABLED, &hdev->dev_flags); 1282 clear_bit(HCI_ADVERTISING, &hdev->dev_flags); 1283 } 1284 1285 if (sent->simul) 1286 hdev->features[1][0] |= LMP_HOST_LE_BREDR; 1287 else 1288 hdev->features[1][0] &= ~LMP_HOST_LE_BREDR; 1289} 1290 1291static void hci_cc_set_adv_param(struct hci_dev *hdev, struct sk_buff *skb) 1292{ 1293 struct hci_cp_le_set_adv_param *cp; 1294 u8 status = *((u8 *) skb->data); 1295 1296 BT_DBG("%s status 0x%2.2x", hdev->name, status); 1297 1298 if (status) 1299 return; 1300 1301 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADV_PARAM); 1302 if (!cp) 1303 return; 1304 1305 hci_dev_lock(hdev); 1306 hdev->adv_addr_type = cp->own_address_type; 1307 hci_dev_unlock(hdev); 1308} 1309 1310static void hci_cc_write_remote_amp_assoc(struct hci_dev *hdev, 1311 struct sk_buff *skb) 1312{ 1313 struct hci_rp_write_remote_amp_assoc *rp = (void *) skb->data; 1314 1315 BT_DBG("%s status 0x%2.2x phy_handle 0x%2.2x", 1316 hdev->name, rp->status, rp->phy_handle); 1317 1318 if (rp->status) 1319 return; 1320 1321 amp_write_rem_assoc_continue(hdev, rp->phy_handle); 1322} 1323 1324static void hci_cc_read_rssi(struct hci_dev *hdev, struct sk_buff *skb) 1325{ 1326 struct hci_rp_read_rssi *rp = (void *) skb->data; 1327 struct hci_conn *conn; 1328 1329 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); 1330 1331 if (rp->status) 1332 return; 1333 1334 hci_dev_lock(hdev); 1335 1336 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle)); 1337 if (conn) 1338 conn->rssi = rp->rssi; 1339 1340 hci_dev_unlock(hdev); 1341} 1342 1343static void hci_cc_read_tx_power(struct hci_dev *hdev, struct sk_buff *skb) 1344{ 1345 struct hci_cp_read_tx_power *sent; 1346 struct hci_rp_read_tx_power *rp = (void *) skb->data; 1347 struct hci_conn *conn; 1348 1349 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); 1350 1351 if (rp->status) 1352 return; 1353 1354 sent = hci_sent_cmd_data(hdev, HCI_OP_READ_TX_POWER); 1355 if (!sent) 1356 return; 1357 1358 hci_dev_lock(hdev); 1359 1360 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle)); 1361 if (!conn) 1362 goto unlock; 1363 1364 switch (sent->type) { 1365 case 0x00: 1366 conn->tx_power = rp->tx_power; 1367 break; 1368 case 0x01: 1369 conn->max_tx_power = rp->tx_power; 1370 break; 1371 } 1372 1373unlock: 1374 hci_dev_unlock(hdev); 1375} 1376 1377static void hci_cs_inquiry(struct hci_dev *hdev, __u8 status) 1378{ 1379 BT_DBG("%s status 0x%2.2x", hdev->name, status); 1380 1381 if (status) { 1382 hci_conn_check_pending(hdev); 1383 return; 1384 } 1385 1386 set_bit(HCI_INQUIRY, &hdev->flags); 1387} 1388 1389static void hci_cs_create_conn(struct hci_dev *hdev, __u8 status) 1390{ 1391 struct hci_cp_create_conn *cp; 1392 struct hci_conn *conn; 1393 1394 BT_DBG("%s status 0x%2.2x", hdev->name, status); 1395 1396 cp = hci_sent_cmd_data(hdev, HCI_OP_CREATE_CONN); 1397 if (!cp) 1398 return; 1399 1400 hci_dev_lock(hdev); 1401 1402 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr); 1403 1404 BT_DBG("%s bdaddr %pMR hcon %p", hdev->name, &cp->bdaddr, conn); 1405 1406 if (status) { 1407 if (conn && conn->state == BT_CONNECT) { 1408 if (status != 0x0c || conn->attempt > 2) { 1409 conn->state = BT_CLOSED; 1410 hci_proto_connect_cfm(conn, status); 1411 hci_conn_del(conn); 1412 } else 1413 conn->state = BT_CONNECT2; 1414 } 1415 } else { 1416 if (!conn) { 1417 conn = hci_conn_add(hdev, ACL_LINK, &cp->bdaddr, 1418 HCI_ROLE_MASTER); 1419 if (!conn) 1420 BT_ERR("No memory for new connection"); 1421 } 1422 } 1423 1424 hci_dev_unlock(hdev); 1425} 1426 1427static void hci_cs_add_sco(struct hci_dev *hdev, __u8 status) 1428{ 1429 struct hci_cp_add_sco *cp; 1430 struct hci_conn *acl, *sco; 1431 __u16 handle; 1432 1433 BT_DBG("%s status 0x%2.2x", hdev->name, status); 1434 1435 if (!status) 1436 return; 1437 1438 cp = hci_sent_cmd_data(hdev, HCI_OP_ADD_SCO); 1439 if (!cp) 1440 return; 1441 1442 handle = __le16_to_cpu(cp->handle); 1443 1444 BT_DBG("%s handle 0x%4.4x", hdev->name, handle); 1445 1446 hci_dev_lock(hdev); 1447 1448 acl = hci_conn_hash_lookup_handle(hdev, handle); 1449 if (acl) { 1450 sco = acl->link; 1451 if (sco) { 1452 sco->state = BT_CLOSED; 1453 1454 hci_proto_connect_cfm(sco, status); 1455 hci_conn_del(sco); 1456 } 1457 } 1458 1459 hci_dev_unlock(hdev); 1460} 1461 1462static void hci_cs_auth_requested(struct hci_dev *hdev, __u8 status) 1463{ 1464 struct hci_cp_auth_requested *cp; 1465 struct hci_conn *conn; 1466 1467 BT_DBG("%s status 0x%2.2x", hdev->name, status); 1468 1469 if (!status) 1470 return; 1471 1472 cp = hci_sent_cmd_data(hdev, HCI_OP_AUTH_REQUESTED); 1473 if (!cp) 1474 return; 1475 1476 hci_dev_lock(hdev); 1477 1478 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle)); 1479 if (conn) { 1480 if (conn->state == BT_CONFIG) { 1481 hci_proto_connect_cfm(conn, status); 1482 hci_conn_drop(conn); 1483 } 1484 } 1485 1486 hci_dev_unlock(hdev); 1487} 1488 1489static void hci_cs_set_conn_encrypt(struct hci_dev *hdev, __u8 status) 1490{ 1491 struct hci_cp_set_conn_encrypt *cp; 1492 struct hci_conn *conn; 1493 1494 BT_DBG("%s status 0x%2.2x", hdev->name, status); 1495 1496 if (!status) 1497 return; 1498 1499 cp = hci_sent_cmd_data(hdev, HCI_OP_SET_CONN_ENCRYPT); 1500 if (!cp) 1501 return; 1502 1503 hci_dev_lock(hdev); 1504 1505 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle)); 1506 if (conn) { 1507 if (conn->state == BT_CONFIG) { 1508 hci_proto_connect_cfm(conn, status); 1509 hci_conn_drop(conn); 1510 } 1511 } 1512 1513 hci_dev_unlock(hdev); 1514} 1515 1516static int hci_outgoing_auth_needed(struct hci_dev *hdev, 1517 struct hci_conn *conn) 1518{ 1519 if (conn->state != BT_CONFIG || !conn->out) 1520 return 0; 1521 1522 if (conn->pending_sec_level == BT_SECURITY_SDP) 1523 return 0; 1524 1525 /* Only request authentication for SSP connections or non-SSP 1526 * devices with sec_level MEDIUM or HIGH or if MITM protection 1527 * is requested. 1528 */ 1529 if (!hci_conn_ssp_enabled(conn) && !(conn->auth_type & 0x01) && 1530 conn->pending_sec_level != BT_SECURITY_FIPS && 1531 conn->pending_sec_level != BT_SECURITY_HIGH && 1532 conn->pending_sec_level != BT_SECURITY_MEDIUM) 1533 return 0; 1534 1535 return 1; 1536} 1537 1538static int hci_resolve_name(struct hci_dev *hdev, 1539 struct inquiry_entry *e) 1540{ 1541 struct hci_cp_remote_name_req cp; 1542 1543 memset(&cp, 0, sizeof(cp)); 1544 1545 bacpy(&cp.bdaddr, &e->data.bdaddr); 1546 cp.pscan_rep_mode = e->data.pscan_rep_mode; 1547 cp.pscan_mode = e->data.pscan_mode; 1548 cp.clock_offset = e->data.clock_offset; 1549 1550 return hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp); 1551} 1552 1553static bool hci_resolve_next_name(struct hci_dev *hdev) 1554{ 1555 struct discovery_state *discov = &hdev->discovery; 1556 struct inquiry_entry *e; 1557 1558 if (list_empty(&discov->resolve)) 1559 return false; 1560 1561 e = hci_inquiry_cache_lookup_resolve(hdev, BDADDR_ANY, NAME_NEEDED); 1562 if (!e) 1563 return false; 1564 1565 if (hci_resolve_name(hdev, e) == 0) { 1566 e->name_state = NAME_PENDING; 1567 return true; 1568 } 1569 1570 return false; 1571} 1572 1573static void hci_check_pending_name(struct hci_dev *hdev, struct hci_conn *conn, 1574 bdaddr_t *bdaddr, u8 *name, u8 name_len) 1575{ 1576 struct discovery_state *discov = &hdev->discovery; 1577 struct inquiry_entry *e; 1578 1579 if (conn && !test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags)) 1580 mgmt_device_connected(hdev, bdaddr, ACL_LINK, 0x00, 0, name, 1581 name_len, conn->dev_class); 1582 1583 if (discov->state == DISCOVERY_STOPPED) 1584 return; 1585 1586 if (discov->state == DISCOVERY_STOPPING) 1587 goto discov_complete; 1588 1589 if (discov->state != DISCOVERY_RESOLVING) 1590 return; 1591 1592 e = hci_inquiry_cache_lookup_resolve(hdev, bdaddr, NAME_PENDING); 1593 /* If the device was not found in a list of found devices names of which 1594 * are pending. there is no need to continue resolving a next name as it 1595 * will be done upon receiving another Remote Name Request Complete 1596 * Event */ 1597 if (!e) 1598 return; 1599 1600 list_del(&e->list); 1601 if (name) { 1602 e->name_state = NAME_KNOWN; 1603 mgmt_remote_name(hdev, bdaddr, ACL_LINK, 0x00, 1604 e->data.rssi, name, name_len); 1605 } else { 1606 e->name_state = NAME_NOT_KNOWN; 1607 } 1608 1609 if (hci_resolve_next_name(hdev)) 1610 return; 1611 1612discov_complete: 1613 hci_discovery_set_state(hdev, DISCOVERY_STOPPED); 1614} 1615 1616static void hci_cs_remote_name_req(struct hci_dev *hdev, __u8 status) 1617{ 1618 struct hci_cp_remote_name_req *cp; 1619 struct hci_conn *conn; 1620 1621 BT_DBG("%s status 0x%2.2x", hdev->name, status); 1622 1623 /* If successful wait for the name req complete event before 1624 * checking for the need to do authentication */ 1625 if (!status) 1626 return; 1627 1628 cp = hci_sent_cmd_data(hdev, HCI_OP_REMOTE_NAME_REQ); 1629 if (!cp) 1630 return; 1631 1632 hci_dev_lock(hdev); 1633 1634 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr); 1635 1636 if (test_bit(HCI_MGMT, &hdev->dev_flags)) 1637 hci_check_pending_name(hdev, conn, &cp->bdaddr, NULL, 0); 1638 1639 if (!conn) 1640 goto unlock; 1641 1642 if (!hci_outgoing_auth_needed(hdev, conn)) 1643 goto unlock; 1644 1645 if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->flags)) { 1646 struct hci_cp_auth_requested auth_cp; 1647 1648 set_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags); 1649 1650 auth_cp.handle = __cpu_to_le16(conn->handle); 1651 hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED, 1652 sizeof(auth_cp), &auth_cp); 1653 } 1654 1655unlock: 1656 hci_dev_unlock(hdev); 1657} 1658 1659static void hci_cs_read_remote_features(struct hci_dev *hdev, __u8 status) 1660{ 1661 struct hci_cp_read_remote_features *cp; 1662 struct hci_conn *conn; 1663 1664 BT_DBG("%s status 0x%2.2x", hdev->name, status); 1665 1666 if (!status) 1667 return; 1668 1669 cp = hci_sent_cmd_data(hdev, HCI_OP_READ_REMOTE_FEATURES); 1670 if (!cp) 1671 return; 1672 1673 hci_dev_lock(hdev); 1674 1675 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle)); 1676 if (conn) { 1677 if (conn->state == BT_CONFIG) { 1678 hci_proto_connect_cfm(conn, status); 1679 hci_conn_drop(conn); 1680 } 1681 } 1682 1683 hci_dev_unlock(hdev); 1684} 1685 1686static void hci_cs_read_remote_ext_features(struct hci_dev *hdev, __u8 status) 1687{ 1688 struct hci_cp_read_remote_ext_features *cp; 1689 struct hci_conn *conn; 1690 1691 BT_DBG("%s status 0x%2.2x", hdev->name, status); 1692 1693 if (!status) 1694 return; 1695 1696 cp = hci_sent_cmd_data(hdev, HCI_OP_READ_REMOTE_EXT_FEATURES); 1697 if (!cp) 1698 return; 1699 1700 hci_dev_lock(hdev); 1701 1702 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle)); 1703 if (conn) { 1704 if (conn->state == BT_CONFIG) { 1705 hci_proto_connect_cfm(conn, status); 1706 hci_conn_drop(conn); 1707 } 1708 } 1709 1710 hci_dev_unlock(hdev); 1711} 1712 1713static void hci_cs_setup_sync_conn(struct hci_dev *hdev, __u8 status) 1714{ 1715 struct hci_cp_setup_sync_conn *cp; 1716 struct hci_conn *acl, *sco; 1717 __u16 handle; 1718 1719 BT_DBG("%s status 0x%2.2x", hdev->name, status); 1720 1721 if (!status) 1722 return; 1723 1724 cp = hci_sent_cmd_data(hdev, HCI_OP_SETUP_SYNC_CONN); 1725 if (!cp) 1726 return; 1727 1728 handle = __le16_to_cpu(cp->handle); 1729 1730 BT_DBG("%s handle 0x%4.4x", hdev->name, handle); 1731 1732 hci_dev_lock(hdev); 1733 1734 acl = hci_conn_hash_lookup_handle(hdev, handle); 1735 if (acl) { 1736 sco = acl->link; 1737 if (sco) { 1738 sco->state = BT_CLOSED; 1739 1740 hci_proto_connect_cfm(sco, status); 1741 hci_conn_del(sco); 1742 } 1743 } 1744 1745 hci_dev_unlock(hdev); 1746} 1747 1748static void hci_cs_sniff_mode(struct hci_dev *hdev, __u8 status) 1749{ 1750 struct hci_cp_sniff_mode *cp; 1751 struct hci_conn *conn; 1752 1753 BT_DBG("%s status 0x%2.2x", hdev->name, status); 1754 1755 if (!status) 1756 return; 1757 1758 cp = hci_sent_cmd_data(hdev, HCI_OP_SNIFF_MODE); 1759 if (!cp) 1760 return; 1761 1762 hci_dev_lock(hdev); 1763 1764 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle)); 1765 if (conn) { 1766 clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->flags); 1767 1768 if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags)) 1769 hci_sco_setup(conn, status); 1770 } 1771 1772 hci_dev_unlock(hdev); 1773} 1774 1775static void hci_cs_exit_sniff_mode(struct hci_dev *hdev, __u8 status) 1776{ 1777 struct hci_cp_exit_sniff_mode *cp; 1778 struct hci_conn *conn; 1779 1780 BT_DBG("%s status 0x%2.2x", hdev->name, status); 1781 1782 if (!status) 1783 return; 1784 1785 cp = hci_sent_cmd_data(hdev, HCI_OP_EXIT_SNIFF_MODE); 1786 if (!cp) 1787 return; 1788 1789 hci_dev_lock(hdev); 1790 1791 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle)); 1792 if (conn) { 1793 clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->flags); 1794 1795 if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags)) 1796 hci_sco_setup(conn, status); 1797 } 1798 1799 hci_dev_unlock(hdev); 1800} 1801 1802static void hci_cs_disconnect(struct hci_dev *hdev, u8 status) 1803{ 1804 struct hci_cp_disconnect *cp; 1805 struct hci_conn *conn; 1806 1807 if (!status) 1808 return; 1809 1810 cp = hci_sent_cmd_data(hdev, HCI_OP_DISCONNECT); 1811 if (!cp) 1812 return; 1813 1814 hci_dev_lock(hdev); 1815 1816 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle)); 1817 if (conn) 1818 mgmt_disconnect_failed(hdev, &conn->dst, conn->type, 1819 conn->dst_type, status); 1820 1821 hci_dev_unlock(hdev); 1822} 1823 1824static void hci_cs_create_phylink(struct hci_dev *hdev, u8 status) 1825{ 1826 struct hci_cp_create_phy_link *cp; 1827 1828 BT_DBG("%s status 0x%2.2x", hdev->name, status); 1829 1830 cp = hci_sent_cmd_data(hdev, HCI_OP_CREATE_PHY_LINK); 1831 if (!cp) 1832 return; 1833 1834 hci_dev_lock(hdev); 1835 1836 if (status) { 1837 struct hci_conn *hcon; 1838 1839 hcon = hci_conn_hash_lookup_handle(hdev, cp->phy_handle); 1840 if (hcon) 1841 hci_conn_del(hcon); 1842 } else { 1843 amp_write_remote_assoc(hdev, cp->phy_handle); 1844 } 1845 1846 hci_dev_unlock(hdev); 1847} 1848 1849static void hci_cs_accept_phylink(struct hci_dev *hdev, u8 status) 1850{ 1851 struct hci_cp_accept_phy_link *cp; 1852 1853 BT_DBG("%s status 0x%2.2x", hdev->name, status); 1854 1855 if (status) 1856 return; 1857 1858 cp = hci_sent_cmd_data(hdev, HCI_OP_ACCEPT_PHY_LINK); 1859 if (!cp) 1860 return; 1861 1862 amp_write_remote_assoc(hdev, cp->phy_handle); 1863} 1864 1865static void hci_cs_le_create_conn(struct hci_dev *hdev, u8 status) 1866{ 1867 struct hci_cp_le_create_conn *cp; 1868 struct hci_conn *conn; 1869 1870 BT_DBG("%s status 0x%2.2x", hdev->name, status); 1871 1872 /* All connection failure handling is taken care of by the 1873 * hci_le_conn_failed function which is triggered by the HCI 1874 * request completion callbacks used for connecting. 1875 */ 1876 if (status) 1877 return; 1878 1879 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_CREATE_CONN); 1880 if (!cp) 1881 return; 1882 1883 hci_dev_lock(hdev); 1884 1885 conn = hci_conn_hash_lookup_ba(hdev, LE_LINK, &cp->peer_addr); 1886 if (!conn) 1887 goto unlock; 1888 1889 /* Store the initiator and responder address information which 1890 * is needed for SMP. These values will not change during the 1891 * lifetime of the connection. 1892 */ 1893 conn->init_addr_type = cp->own_address_type; 1894 if (cp->own_address_type == ADDR_LE_DEV_RANDOM) 1895 bacpy(&conn->init_addr, &hdev->random_addr); 1896 else 1897 bacpy(&conn->init_addr, &hdev->bdaddr); 1898 1899 conn->resp_addr_type = cp->peer_addr_type; 1900 bacpy(&conn->resp_addr, &cp->peer_addr); 1901 1902 /* We don't want the connection attempt to stick around 1903 * indefinitely since LE doesn't have a page timeout concept 1904 * like BR/EDR. Set a timer for any connection that doesn't use 1905 * the white list for connecting. 1906 */ 1907 if (cp->filter_policy == HCI_LE_USE_PEER_ADDR) 1908 queue_delayed_work(conn->hdev->workqueue, 1909 &conn->le_conn_timeout, 1910 conn->conn_timeout); 1911 1912unlock: 1913 hci_dev_unlock(hdev); 1914} 1915 1916static void hci_cs_le_start_enc(struct hci_dev *hdev, u8 status) 1917{ 1918 struct hci_cp_le_start_enc *cp; 1919 struct hci_conn *conn; 1920 1921 BT_DBG("%s status 0x%2.2x", hdev->name, status); 1922 1923 if (!status) 1924 return; 1925 1926 hci_dev_lock(hdev); 1927 1928 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_START_ENC); 1929 if (!cp) 1930 goto unlock; 1931 1932 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle)); 1933 if (!conn) 1934 goto unlock; 1935 1936 if (conn->state != BT_CONNECTED) 1937 goto unlock; 1938 1939 hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE); 1940 hci_conn_drop(conn); 1941 1942unlock: 1943 hci_dev_unlock(hdev); 1944} 1945 1946static void hci_inquiry_complete_evt(struct hci_dev *hdev, struct sk_buff *skb) 1947{ 1948 __u8 status = *((__u8 *) skb->data); 1949 struct discovery_state *discov = &hdev->discovery; 1950 struct inquiry_entry *e; 1951 1952 BT_DBG("%s status 0x%2.2x", hdev->name, status); 1953 1954 hci_conn_check_pending(hdev); 1955 1956 if (!test_and_clear_bit(HCI_INQUIRY, &hdev->flags)) 1957 return; 1958 1959 smp_mb__after_atomic(); /* wake_up_bit advises about this barrier */ 1960 wake_up_bit(&hdev->flags, HCI_INQUIRY); 1961 1962 if (!test_bit(HCI_MGMT, &hdev->dev_flags)) 1963 return; 1964 1965 hci_dev_lock(hdev); 1966 1967 if (discov->state != DISCOVERY_FINDING) 1968 goto unlock; 1969 1970 if (list_empty(&discov->resolve)) { 1971 hci_discovery_set_state(hdev, DISCOVERY_STOPPED); 1972 goto unlock; 1973 } 1974 1975 e = hci_inquiry_cache_lookup_resolve(hdev, BDADDR_ANY, NAME_NEEDED); 1976 if (e && hci_resolve_name(hdev, e) == 0) { 1977 e->name_state = NAME_PENDING; 1978 hci_discovery_set_state(hdev, DISCOVERY_RESOLVING); 1979 } else { 1980 hci_discovery_set_state(hdev, DISCOVERY_STOPPED); 1981 } 1982 1983unlock: 1984 hci_dev_unlock(hdev); 1985} 1986 1987static void hci_inquiry_result_evt(struct hci_dev *hdev, struct sk_buff *skb) 1988{ 1989 struct inquiry_data data; 1990 struct inquiry_info *info = (void *) (skb->data + 1); 1991 int num_rsp = *((__u8 *) skb->data); 1992 1993 BT_DBG("%s num_rsp %d", hdev->name, num_rsp); 1994 1995 if (!num_rsp) 1996 return; 1997 1998 if (test_bit(HCI_PERIODIC_INQ, &hdev->dev_flags)) 1999 return; 2000 2001 hci_dev_lock(hdev); 2002 2003 for (; num_rsp; num_rsp--, info++) { 2004 u32 flags; 2005 2006 bacpy(&data.bdaddr, &info->bdaddr); 2007 data.pscan_rep_mode = info->pscan_rep_mode; 2008 data.pscan_period_mode = info->pscan_period_mode; 2009 data.pscan_mode = info->pscan_mode; 2010 memcpy(data.dev_class, info->dev_class, 3); 2011 data.clock_offset = info->clock_offset; 2012 data.rssi = 0x00; 2013 data.ssp_mode = 0x00; 2014 2015 flags = hci_inquiry_cache_update(hdev, &data, false); 2016 2017 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00, 2018 info->dev_class, 0, flags, NULL, 0, NULL, 0); 2019 } 2020 2021 hci_dev_unlock(hdev); 2022} 2023 2024static void hci_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb) 2025{ 2026 struct hci_ev_conn_complete *ev = (void *) skb->data; 2027 struct hci_conn *conn; 2028 2029 BT_DBG("%s", hdev->name); 2030 2031 hci_dev_lock(hdev); 2032 2033 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr); 2034 if (!conn) { 2035 if (ev->link_type != SCO_LINK) 2036 goto unlock; 2037 2038 conn = hci_conn_hash_lookup_ba(hdev, ESCO_LINK, &ev->bdaddr); 2039 if (!conn) 2040 goto unlock; 2041 2042 conn->type = SCO_LINK; 2043 } 2044 2045 if (!ev->status) { 2046 conn->handle = __le16_to_cpu(ev->handle); 2047 2048 if (conn->type == ACL_LINK) { 2049 conn->state = BT_CONFIG; 2050 hci_conn_hold(conn); 2051 2052 if (!conn->out && !hci_conn_ssp_enabled(conn) && 2053 !hci_find_link_key(hdev, &ev->bdaddr)) 2054 conn->disc_timeout = HCI_PAIRING_TIMEOUT; 2055 else 2056 conn->disc_timeout = HCI_DISCONN_TIMEOUT; 2057 } else 2058 conn->state = BT_CONNECTED; 2059 2060 hci_conn_add_sysfs(conn); 2061 2062 if (test_bit(HCI_AUTH, &hdev->flags)) 2063 set_bit(HCI_CONN_AUTH, &conn->flags); 2064 2065 if (test_bit(HCI_ENCRYPT, &hdev->flags)) 2066 set_bit(HCI_CONN_ENCRYPT, &conn->flags); 2067 2068 /* Get remote features */ 2069 if (conn->type == ACL_LINK) { 2070 struct hci_cp_read_remote_features cp; 2071 cp.handle = ev->handle; 2072 hci_send_cmd(hdev, HCI_OP_READ_REMOTE_FEATURES, 2073 sizeof(cp), &cp); 2074 2075 hci_update_page_scan(hdev, NULL); 2076 } 2077 2078 /* Set packet type for incoming connection */ 2079 if (!conn->out && hdev->hci_ver < BLUETOOTH_VER_2_0) { 2080 struct hci_cp_change_conn_ptype cp; 2081 cp.handle = ev->handle; 2082 cp.pkt_type = cpu_to_le16(conn->pkt_type); 2083 hci_send_cmd(hdev, HCI_OP_CHANGE_CONN_PTYPE, sizeof(cp), 2084 &cp); 2085 } 2086 } else { 2087 conn->state = BT_CLOSED; 2088 if (conn->type == ACL_LINK) 2089 mgmt_connect_failed(hdev, &conn->dst, conn->type, 2090 conn->dst_type, ev->status); 2091 } 2092 2093 if (conn->type == ACL_LINK) 2094 hci_sco_setup(conn, ev->status); 2095 2096 if (ev->status) { 2097 hci_proto_connect_cfm(conn, ev->status); 2098 hci_conn_del(conn); 2099 } else if (ev->link_type != ACL_LINK) 2100 hci_proto_connect_cfm(conn, ev->status); 2101 2102unlock: 2103 hci_dev_unlock(hdev); 2104 2105 hci_conn_check_pending(hdev); 2106} 2107 2108static void hci_reject_conn(struct hci_dev *hdev, bdaddr_t *bdaddr) 2109{ 2110 struct hci_cp_reject_conn_req cp; 2111 2112 bacpy(&cp.bdaddr, bdaddr); 2113 cp.reason = HCI_ERROR_REJ_BAD_ADDR; 2114 hci_send_cmd(hdev, HCI_OP_REJECT_CONN_REQ, sizeof(cp), &cp); 2115} 2116 2117static void hci_conn_request_evt(struct hci_dev *hdev, struct sk_buff *skb) 2118{ 2119 struct hci_ev_conn_request *ev = (void *) skb->data; 2120 int mask = hdev->link_mode; 2121 struct inquiry_entry *ie; 2122 struct hci_conn *conn; 2123 __u8 flags = 0; 2124 2125 BT_DBG("%s bdaddr %pMR type 0x%x", hdev->name, &ev->bdaddr, 2126 ev->link_type); 2127 2128 mask |= hci_proto_connect_ind(hdev, &ev->bdaddr, ev->link_type, 2129 &flags); 2130 2131 if (!(mask & HCI_LM_ACCEPT)) { 2132 hci_reject_conn(hdev, &ev->bdaddr); 2133 return; 2134 } 2135 2136 if (hci_bdaddr_list_lookup(&hdev->blacklist, &ev->bdaddr, 2137 BDADDR_BREDR)) { 2138 hci_reject_conn(hdev, &ev->bdaddr); 2139 return; 2140 } 2141 2142 if (!test_bit(HCI_CONNECTABLE, &hdev->dev_flags) && 2143 !hci_bdaddr_list_lookup(&hdev->whitelist, &ev->bdaddr, 2144 BDADDR_BREDR)) { 2145 hci_reject_conn(hdev, &ev->bdaddr); 2146 return; 2147 } 2148 2149 /* Connection accepted */ 2150 2151 hci_dev_lock(hdev); 2152 2153 ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr); 2154 if (ie) 2155 memcpy(ie->data.dev_class, ev->dev_class, 3); 2156 2157 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, 2158 &ev->bdaddr); 2159 if (!conn) { 2160 conn = hci_conn_add(hdev, ev->link_type, &ev->bdaddr, 2161 HCI_ROLE_SLAVE); 2162 if (!conn) { 2163 BT_ERR("No memory for new connection"); 2164 hci_dev_unlock(hdev); 2165 return; 2166 } 2167 } 2168 2169 memcpy(conn->dev_class, ev->dev_class, 3); 2170 2171 hci_dev_unlock(hdev); 2172 2173 if (ev->link_type == ACL_LINK || 2174 (!(flags & HCI_PROTO_DEFER) && !lmp_esco_capable(hdev))) { 2175 struct hci_cp_accept_conn_req cp; 2176 conn->state = BT_CONNECT; 2177 2178 bacpy(&cp.bdaddr, &ev->bdaddr); 2179 2180 if (lmp_rswitch_capable(hdev) && (mask & HCI_LM_MASTER)) 2181 cp.role = 0x00; /* Become master */ 2182 else 2183 cp.role = 0x01; /* Remain slave */ 2184 2185 hci_send_cmd(hdev, HCI_OP_ACCEPT_CONN_REQ, sizeof(cp), &cp); 2186 } else if (!(flags & HCI_PROTO_DEFER)) { 2187 struct hci_cp_accept_sync_conn_req cp; 2188 conn->state = BT_CONNECT; 2189 2190 bacpy(&cp.bdaddr, &ev->bdaddr); 2191 cp.pkt_type = cpu_to_le16(conn->pkt_type); 2192 2193 cp.tx_bandwidth = cpu_to_le32(0x00001f40); 2194 cp.rx_bandwidth = cpu_to_le32(0x00001f40); 2195 cp.max_latency = cpu_to_le16(0xffff); 2196 cp.content_format = cpu_to_le16(hdev->voice_setting); 2197 cp.retrans_effort = 0xff; 2198 2199 hci_send_cmd(hdev, HCI_OP_ACCEPT_SYNC_CONN_REQ, sizeof(cp), 2200 &cp); 2201 } else { 2202 conn->state = BT_CONNECT2; 2203 hci_proto_connect_cfm(conn, 0); 2204 } 2205} 2206 2207static u8 hci_to_mgmt_reason(u8 err) 2208{ 2209 switch (err) { 2210 case HCI_ERROR_CONNECTION_TIMEOUT: 2211 return MGMT_DEV_DISCONN_TIMEOUT; 2212 case HCI_ERROR_REMOTE_USER_TERM: 2213 case HCI_ERROR_REMOTE_LOW_RESOURCES: 2214 case HCI_ERROR_REMOTE_POWER_OFF: 2215 return MGMT_DEV_DISCONN_REMOTE; 2216 case HCI_ERROR_LOCAL_HOST_TERM: 2217 return MGMT_DEV_DISCONN_LOCAL_HOST; 2218 default: 2219 return MGMT_DEV_DISCONN_UNKNOWN; 2220 } 2221} 2222 2223static void hci_disconn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb) 2224{ 2225 struct hci_ev_disconn_complete *ev = (void *) skb->data; 2226 u8 reason = hci_to_mgmt_reason(ev->reason); 2227 struct hci_conn_params *params; 2228 struct hci_conn *conn; 2229 bool mgmt_connected; 2230 u8 type; 2231 2232 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status); 2233 2234 hci_dev_lock(hdev); 2235 2236 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle)); 2237 if (!conn) 2238 goto unlock; 2239 2240 if (ev->status) { 2241 mgmt_disconnect_failed(hdev, &conn->dst, conn->type, 2242 conn->dst_type, ev->status); 2243 goto unlock; 2244 } 2245 2246 conn->state = BT_CLOSED; 2247 2248 mgmt_connected = test_and_clear_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags); 2249 mgmt_device_disconnected(hdev, &conn->dst, conn->type, conn->dst_type, 2250 reason, mgmt_connected); 2251 2252 if (conn->type == ACL_LINK) { 2253 if (test_bit(HCI_CONN_FLUSH_KEY, &conn->flags)) 2254 hci_remove_link_key(hdev, &conn->dst); 2255 2256 hci_update_page_scan(hdev, NULL); 2257 } 2258 2259 params = hci_conn_params_lookup(hdev, &conn->dst, conn->dst_type); 2260 if (params) { 2261 switch (params->auto_connect) { 2262 case HCI_AUTO_CONN_LINK_LOSS: 2263 if (ev->reason != HCI_ERROR_CONNECTION_TIMEOUT) 2264 break; 2265 /* Fall through */ 2266 2267 case HCI_AUTO_CONN_DIRECT: 2268 case HCI_AUTO_CONN_ALWAYS: 2269 list_del_init(¶ms->action); 2270 list_add(¶ms->action, &hdev->pend_le_conns); 2271 hci_update_background_scan(hdev); 2272 break; 2273 2274 default: 2275 break; 2276 } 2277 } 2278 2279 type = conn->type; 2280 2281 hci_proto_disconn_cfm(conn, ev->reason); 2282 hci_conn_del(conn); 2283 2284 /* Re-enable advertising if necessary, since it might 2285 * have been disabled by the connection. From the 2286 * HCI_LE_Set_Advertise_Enable command description in 2287 * the core specification (v4.0): 2288 * "The Controller shall continue advertising until the Host 2289 * issues an LE_Set_Advertise_Enable command with 2290 * Advertising_Enable set to 0x00 (Advertising is disabled) 2291 * or until a connection is created or until the Advertising 2292 * is timed out due to Directed Advertising." 2293 */ 2294 if (type == LE_LINK) 2295 mgmt_reenable_advertising(hdev); 2296 2297unlock: 2298 hci_dev_unlock(hdev); 2299} 2300 2301static void hci_auth_complete_evt(struct hci_dev *hdev, struct sk_buff *skb) 2302{ 2303 struct hci_ev_auth_complete *ev = (void *) skb->data; 2304 struct hci_conn *conn; 2305 2306 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status); 2307 2308 hci_dev_lock(hdev); 2309 2310 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle)); 2311 if (!conn) 2312 goto unlock; 2313 2314 if (!ev->status) { 2315 if (!hci_conn_ssp_enabled(conn) && 2316 test_bit(HCI_CONN_REAUTH_PEND, &conn->flags)) { 2317 BT_INFO("re-auth of legacy device is not possible."); 2318 } else { 2319 set_bit(HCI_CONN_AUTH, &conn->flags); 2320 conn->sec_level = conn->pending_sec_level; 2321 } 2322 } else { 2323 mgmt_auth_failed(conn, ev->status); 2324 } 2325 2326 clear_bit(HCI_CONN_AUTH_PEND, &conn->flags); 2327 clear_bit(HCI_CONN_REAUTH_PEND, &conn->flags); 2328 2329 if (conn->state == BT_CONFIG) { 2330 if (!ev->status && hci_conn_ssp_enabled(conn)) { 2331 struct hci_cp_set_conn_encrypt cp; 2332 cp.handle = ev->handle; 2333 cp.encrypt = 0x01; 2334 hci_send_cmd(hdev, HCI_OP_SET_CONN_ENCRYPT, sizeof(cp), 2335 &cp); 2336 } else { 2337 conn->state = BT_CONNECTED; 2338 hci_proto_connect_cfm(conn, ev->status); 2339 hci_conn_drop(conn); 2340 } 2341 } else { 2342 hci_auth_cfm(conn, ev->status); 2343 2344 hci_conn_hold(conn); 2345 conn->disc_timeout = HCI_DISCONN_TIMEOUT; 2346 hci_conn_drop(conn); 2347 } 2348 2349 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) { 2350 if (!ev->status) { 2351 struct hci_cp_set_conn_encrypt cp; 2352 cp.handle = ev->handle; 2353 cp.encrypt = 0x01; 2354 hci_send_cmd(hdev, HCI_OP_SET_CONN_ENCRYPT, sizeof(cp), 2355 &cp); 2356 } else { 2357 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags); 2358 hci_encrypt_cfm(conn, ev->status, 0x00); 2359 } 2360 } 2361 2362unlock: 2363 hci_dev_unlock(hdev); 2364} 2365 2366static void hci_remote_name_evt(struct hci_dev *hdev, struct sk_buff *skb) 2367{ 2368 struct hci_ev_remote_name *ev = (void *) skb->data; 2369 struct hci_conn *conn; 2370 2371 BT_DBG("%s", hdev->name); 2372 2373 hci_conn_check_pending(hdev); 2374 2375 hci_dev_lock(hdev); 2376 2377 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr); 2378 2379 if (!test_bit(HCI_MGMT, &hdev->dev_flags)) 2380 goto check_auth; 2381 2382 if (ev->status == 0) 2383 hci_check_pending_name(hdev, conn, &ev->bdaddr, ev->name, 2384 strnlen(ev->name, HCI_MAX_NAME_LENGTH)); 2385 else 2386 hci_check_pending_name(hdev, conn, &ev->bdaddr, NULL, 0); 2387 2388check_auth: 2389 if (!conn) 2390 goto unlock; 2391 2392 if (!hci_outgoing_auth_needed(hdev, conn)) 2393 goto unlock; 2394 2395 if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->flags)) { 2396 struct hci_cp_auth_requested cp; 2397 2398 set_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags); 2399 2400 cp.handle = __cpu_to_le16(conn->handle); 2401 hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED, sizeof(cp), &cp); 2402 } 2403 2404unlock: 2405 hci_dev_unlock(hdev); 2406} 2407 2408static void hci_encrypt_change_evt(struct hci_dev *hdev, struct sk_buff *skb) 2409{ 2410 struct hci_ev_encrypt_change *ev = (void *) skb->data; 2411 struct hci_conn *conn; 2412 2413 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status); 2414 2415 hci_dev_lock(hdev); 2416 2417 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle)); 2418 if (!conn) 2419 goto unlock; 2420 2421 if (!ev->status) { 2422 if (ev->encrypt) { 2423 /* Encryption implies authentication */ 2424 set_bit(HCI_CONN_AUTH, &conn->flags); 2425 set_bit(HCI_CONN_ENCRYPT, &conn->flags); 2426 conn->sec_level = conn->pending_sec_level; 2427 2428 /* P-256 authentication key implies FIPS */ 2429 if (conn->key_type == HCI_LK_AUTH_COMBINATION_P256) 2430 set_bit(HCI_CONN_FIPS, &conn->flags); 2431 2432 if ((conn->type == ACL_LINK && ev->encrypt == 0x02) || 2433 conn->type == LE_LINK) 2434 set_bit(HCI_CONN_AES_CCM, &conn->flags); 2435 } else { 2436 clear_bit(HCI_CONN_ENCRYPT, &conn->flags); 2437 clear_bit(HCI_CONN_AES_CCM, &conn->flags); 2438 } 2439 } 2440 2441 /* We should disregard the current RPA and generate a new one 2442 * whenever the encryption procedure fails. 2443 */ 2444 if (ev->status && conn->type == LE_LINK) 2445 set_bit(HCI_RPA_EXPIRED, &hdev->dev_flags); 2446 2447 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags); 2448 2449 if (ev->status && conn->state == BT_CONNECTED) { 2450 hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE); 2451 hci_conn_drop(conn); 2452 goto unlock; 2453 } 2454 2455 if (conn->state == BT_CONFIG) { 2456 if (!ev->status) 2457 conn->state = BT_CONNECTED; 2458 2459 /* In Secure Connections Only mode, do not allow any 2460 * connections that are not encrypted with AES-CCM 2461 * using a P-256 authenticated combination key. 2462 */ 2463 if (test_bit(HCI_SC_ONLY, &hdev->dev_flags) && 2464 (!test_bit(HCI_CONN_AES_CCM, &conn->flags) || 2465 conn->key_type != HCI_LK_AUTH_COMBINATION_P256)) { 2466 hci_proto_connect_cfm(conn, HCI_ERROR_AUTH_FAILURE); 2467 hci_conn_drop(conn); 2468 goto unlock; 2469 } 2470 2471 hci_proto_connect_cfm(conn, ev->status); 2472 hci_conn_drop(conn); 2473 } else 2474 hci_encrypt_cfm(conn, ev->status, ev->encrypt); 2475 2476unlock: 2477 hci_dev_unlock(hdev); 2478} 2479 2480static void hci_change_link_key_complete_evt(struct hci_dev *hdev, 2481 struct sk_buff *skb) 2482{ 2483 struct hci_ev_change_link_key_complete *ev = (void *) skb->data; 2484 struct hci_conn *conn; 2485 2486 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status); 2487 2488 hci_dev_lock(hdev); 2489 2490 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle)); 2491 if (conn) { 2492 if (!ev->status) 2493 set_bit(HCI_CONN_SECURE, &conn->flags); 2494 2495 clear_bit(HCI_CONN_AUTH_PEND, &conn->flags); 2496 2497 hci_key_change_cfm(conn, ev->status); 2498 } 2499 2500 hci_dev_unlock(hdev); 2501} 2502 2503static void hci_remote_features_evt(struct hci_dev *hdev, 2504 struct sk_buff *skb) 2505{ 2506 struct hci_ev_remote_features *ev = (void *) skb->data; 2507 struct hci_conn *conn; 2508 2509 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status); 2510 2511 hci_dev_lock(hdev); 2512 2513 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle)); 2514 if (!conn) 2515 goto unlock; 2516 2517 if (!ev->status) 2518 memcpy(conn->features[0], ev->features, 8); 2519 2520 if (conn->state != BT_CONFIG) 2521 goto unlock; 2522 2523 if (!ev->status && lmp_ssp_capable(hdev) && lmp_ssp_capable(conn)) { 2524 struct hci_cp_read_remote_ext_features cp; 2525 cp.handle = ev->handle; 2526 cp.page = 0x01; 2527 hci_send_cmd(hdev, HCI_OP_READ_REMOTE_EXT_FEATURES, 2528 sizeof(cp), &cp); 2529 goto unlock; 2530 } 2531 2532 if (!ev->status && !test_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags)) { 2533 struct hci_cp_remote_name_req cp; 2534 memset(&cp, 0, sizeof(cp)); 2535 bacpy(&cp.bdaddr, &conn->dst); 2536 cp.pscan_rep_mode = 0x02; 2537 hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp); 2538 } else if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags)) 2539 mgmt_device_connected(hdev, &conn->dst, conn->type, 2540 conn->dst_type, 0, NULL, 0, 2541 conn->dev_class); 2542 2543 if (!hci_outgoing_auth_needed(hdev, conn)) { 2544 conn->state = BT_CONNECTED; 2545 hci_proto_connect_cfm(conn, ev->status); 2546 hci_conn_drop(conn); 2547 } 2548 2549unlock: 2550 hci_dev_unlock(hdev); 2551} 2552 2553static void hci_cmd_complete_evt(struct hci_dev *hdev, struct sk_buff *skb) 2554{ 2555 struct hci_ev_cmd_complete *ev = (void *) skb->data; 2556 u8 status = skb->data[sizeof(*ev)]; 2557 __u16 opcode; 2558 2559 skb_pull(skb, sizeof(*ev)); 2560 2561 opcode = __le16_to_cpu(ev->opcode); 2562 2563 switch (opcode) { 2564 case HCI_OP_INQUIRY_CANCEL: 2565 hci_cc_inquiry_cancel(hdev, skb); 2566 break; 2567 2568 case HCI_OP_PERIODIC_INQ: 2569 hci_cc_periodic_inq(hdev, skb); 2570 break; 2571 2572 case HCI_OP_EXIT_PERIODIC_INQ: 2573 hci_cc_exit_periodic_inq(hdev, skb); 2574 break; 2575 2576 case HCI_OP_REMOTE_NAME_REQ_CANCEL: 2577 hci_cc_remote_name_req_cancel(hdev, skb); 2578 break; 2579 2580 case HCI_OP_ROLE_DISCOVERY: 2581 hci_cc_role_discovery(hdev, skb); 2582 break; 2583 2584 case HCI_OP_READ_LINK_POLICY: 2585 hci_cc_read_link_policy(hdev, skb); 2586 break; 2587 2588 case HCI_OP_WRITE_LINK_POLICY: 2589 hci_cc_write_link_policy(hdev, skb); 2590 break; 2591 2592 case HCI_OP_READ_DEF_LINK_POLICY: 2593 hci_cc_read_def_link_policy(hdev, skb); 2594 break; 2595 2596 case HCI_OP_WRITE_DEF_LINK_POLICY: 2597 hci_cc_write_def_link_policy(hdev, skb); 2598 break; 2599 2600 case HCI_OP_RESET: 2601 hci_cc_reset(hdev, skb); 2602 break; 2603 2604 case HCI_OP_WRITE_LOCAL_NAME: 2605 hci_cc_write_local_name(hdev, skb); 2606 break; 2607 2608 case HCI_OP_READ_LOCAL_NAME: 2609 hci_cc_read_local_name(hdev, skb); 2610 break; 2611 2612 case HCI_OP_WRITE_AUTH_ENABLE: 2613 hci_cc_write_auth_enable(hdev, skb); 2614 break; 2615 2616 case HCI_OP_WRITE_ENCRYPT_MODE: 2617 hci_cc_write_encrypt_mode(hdev, skb); 2618 break; 2619 2620 case HCI_OP_WRITE_SCAN_ENABLE: 2621 hci_cc_write_scan_enable(hdev, skb); 2622 break; 2623 2624 case HCI_OP_READ_CLASS_OF_DEV: 2625 hci_cc_read_class_of_dev(hdev, skb); 2626 break; 2627 2628 case HCI_OP_WRITE_CLASS_OF_DEV: 2629 hci_cc_write_class_of_dev(hdev, skb); 2630 break; 2631 2632 case HCI_OP_READ_VOICE_SETTING: 2633 hci_cc_read_voice_setting(hdev, skb); 2634 break; 2635 2636 case HCI_OP_WRITE_VOICE_SETTING: 2637 hci_cc_write_voice_setting(hdev, skb); 2638 break; 2639 2640 case HCI_OP_READ_NUM_SUPPORTED_IAC: 2641 hci_cc_read_num_supported_iac(hdev, skb); 2642 break; 2643 2644 case HCI_OP_WRITE_SSP_MODE: 2645 hci_cc_write_ssp_mode(hdev, skb); 2646 break; 2647 2648 case HCI_OP_WRITE_SC_SUPPORT: 2649 hci_cc_write_sc_support(hdev, skb); 2650 break; 2651 2652 case HCI_OP_READ_LOCAL_VERSION: 2653 hci_cc_read_local_version(hdev, skb); 2654 break; 2655 2656 case HCI_OP_READ_LOCAL_COMMANDS: 2657 hci_cc_read_local_commands(hdev, skb); 2658 break; 2659 2660 case HCI_OP_READ_LOCAL_FEATURES: 2661 hci_cc_read_local_features(hdev, skb); 2662 break; 2663 2664 case HCI_OP_READ_LOCAL_EXT_FEATURES: 2665 hci_cc_read_local_ext_features(hdev, skb); 2666 break; 2667 2668 case HCI_OP_READ_BUFFER_SIZE: 2669 hci_cc_read_buffer_size(hdev, skb); 2670 break; 2671 2672 case HCI_OP_READ_BD_ADDR: 2673 hci_cc_read_bd_addr(hdev, skb); 2674 break; 2675 2676 case HCI_OP_READ_PAGE_SCAN_ACTIVITY: 2677 hci_cc_read_page_scan_activity(hdev, skb); 2678 break; 2679 2680 case HCI_OP_WRITE_PAGE_SCAN_ACTIVITY: 2681 hci_cc_write_page_scan_activity(hdev, skb); 2682 break; 2683 2684 case HCI_OP_READ_PAGE_SCAN_TYPE: 2685 hci_cc_read_page_scan_type(hdev, skb); 2686 break; 2687 2688 case HCI_OP_WRITE_PAGE_SCAN_TYPE: 2689 hci_cc_write_page_scan_type(hdev, skb); 2690 break; 2691 2692 case HCI_OP_READ_DATA_BLOCK_SIZE: 2693 hci_cc_read_data_block_size(hdev, skb); 2694 break; 2695 2696 case HCI_OP_READ_FLOW_CONTROL_MODE: 2697 hci_cc_read_flow_control_mode(hdev, skb); 2698 break; 2699 2700 case HCI_OP_READ_LOCAL_AMP_INFO: 2701 hci_cc_read_local_amp_info(hdev, skb); 2702 break; 2703 2704 case HCI_OP_READ_CLOCK: 2705 hci_cc_read_clock(hdev, skb); 2706 break; 2707 2708 case HCI_OP_READ_LOCAL_AMP_ASSOC: 2709 hci_cc_read_local_amp_assoc(hdev, skb); 2710 break; 2711 2712 case HCI_OP_READ_INQ_RSP_TX_POWER: 2713 hci_cc_read_inq_rsp_tx_power(hdev, skb); 2714 break; 2715 2716 case HCI_OP_PIN_CODE_REPLY: 2717 hci_cc_pin_code_reply(hdev, skb); 2718 break; 2719 2720 case HCI_OP_PIN_CODE_NEG_REPLY: 2721 hci_cc_pin_code_neg_reply(hdev, skb); 2722 break; 2723 2724 case HCI_OP_READ_LOCAL_OOB_DATA: 2725 hci_cc_read_local_oob_data(hdev, skb); 2726 break; 2727 2728 case HCI_OP_READ_LOCAL_OOB_EXT_DATA: 2729 hci_cc_read_local_oob_ext_data(hdev, skb); 2730 break; 2731 2732 case HCI_OP_LE_READ_BUFFER_SIZE: 2733 hci_cc_le_read_buffer_size(hdev, skb); 2734 break; 2735 2736 case HCI_OP_LE_READ_LOCAL_FEATURES: 2737 hci_cc_le_read_local_features(hdev, skb); 2738 break; 2739 2740 case HCI_OP_LE_READ_ADV_TX_POWER: 2741 hci_cc_le_read_adv_tx_power(hdev, skb); 2742 break; 2743 2744 case HCI_OP_USER_CONFIRM_REPLY: 2745 hci_cc_user_confirm_reply(hdev, skb); 2746 break; 2747 2748 case HCI_OP_USER_CONFIRM_NEG_REPLY: 2749 hci_cc_user_confirm_neg_reply(hdev, skb); 2750 break; 2751 2752 case HCI_OP_USER_PASSKEY_REPLY: 2753 hci_cc_user_passkey_reply(hdev, skb); 2754 break; 2755 2756 case HCI_OP_USER_PASSKEY_NEG_REPLY: 2757 hci_cc_user_passkey_neg_reply(hdev, skb); 2758 break; 2759 2760 case HCI_OP_LE_SET_RANDOM_ADDR: 2761 hci_cc_le_set_random_addr(hdev, skb); 2762 break; 2763 2764 case HCI_OP_LE_SET_ADV_ENABLE: 2765 hci_cc_le_set_adv_enable(hdev, skb); 2766 break; 2767 2768 case HCI_OP_LE_SET_SCAN_PARAM: 2769 hci_cc_le_set_scan_param(hdev, skb); 2770 break; 2771 2772 case HCI_OP_LE_SET_SCAN_ENABLE: 2773 hci_cc_le_set_scan_enable(hdev, skb); 2774 break; 2775 2776 case HCI_OP_LE_READ_WHITE_LIST_SIZE: 2777 hci_cc_le_read_white_list_size(hdev, skb); 2778 break; 2779 2780 case HCI_OP_LE_CLEAR_WHITE_LIST: 2781 hci_cc_le_clear_white_list(hdev, skb); 2782 break; 2783 2784 case HCI_OP_LE_ADD_TO_WHITE_LIST: 2785 hci_cc_le_add_to_white_list(hdev, skb); 2786 break; 2787 2788 case HCI_OP_LE_DEL_FROM_WHITE_LIST: 2789 hci_cc_le_del_from_white_list(hdev, skb); 2790 break; 2791 2792 case HCI_OP_LE_READ_SUPPORTED_STATES: 2793 hci_cc_le_read_supported_states(hdev, skb); 2794 break; 2795 2796 case HCI_OP_WRITE_LE_HOST_SUPPORTED: 2797 hci_cc_write_le_host_supported(hdev, skb); 2798 break; 2799 2800 case HCI_OP_LE_SET_ADV_PARAM: 2801 hci_cc_set_adv_param(hdev, skb); 2802 break; 2803 2804 case HCI_OP_WRITE_REMOTE_AMP_ASSOC: 2805 hci_cc_write_remote_amp_assoc(hdev, skb); 2806 break; 2807 2808 case HCI_OP_READ_RSSI: 2809 hci_cc_read_rssi(hdev, skb); 2810 break; 2811 2812 case HCI_OP_READ_TX_POWER: 2813 hci_cc_read_tx_power(hdev, skb); 2814 break; 2815 2816 default: 2817 BT_DBG("%s opcode 0x%4.4x", hdev->name, opcode); 2818 break; 2819 } 2820 2821 if (opcode != HCI_OP_NOP) 2822 cancel_delayed_work(&hdev->cmd_timer); 2823 2824 hci_req_cmd_complete(hdev, opcode, status); 2825 2826 if (ev->ncmd && !test_bit(HCI_RESET, &hdev->flags)) { 2827 atomic_set(&hdev->cmd_cnt, 1); 2828 if (!skb_queue_empty(&hdev->cmd_q)) 2829 queue_work(hdev->workqueue, &hdev->cmd_work); 2830 } 2831} 2832 2833static void hci_cmd_status_evt(struct hci_dev *hdev, struct sk_buff *skb) 2834{ 2835 struct hci_ev_cmd_status *ev = (void *) skb->data; 2836 __u16 opcode; 2837 2838 skb_pull(skb, sizeof(*ev)); 2839 2840 opcode = __le16_to_cpu(ev->opcode); 2841 2842 switch (opcode) { 2843 case HCI_OP_INQUIRY: 2844 hci_cs_inquiry(hdev, ev->status); 2845 break; 2846 2847 case HCI_OP_CREATE_CONN: 2848 hci_cs_create_conn(hdev, ev->status); 2849 break; 2850 2851 case HCI_OP_ADD_SCO: 2852 hci_cs_add_sco(hdev, ev->status); 2853 break; 2854 2855 case HCI_OP_AUTH_REQUESTED: 2856 hci_cs_auth_requested(hdev, ev->status); 2857 break; 2858 2859 case HCI_OP_SET_CONN_ENCRYPT: 2860 hci_cs_set_conn_encrypt(hdev, ev->status); 2861 break; 2862 2863 case HCI_OP_REMOTE_NAME_REQ: 2864 hci_cs_remote_name_req(hdev, ev->status); 2865 break; 2866 2867 case HCI_OP_READ_REMOTE_FEATURES: 2868 hci_cs_read_remote_features(hdev, ev->status); 2869 break; 2870 2871 case HCI_OP_READ_REMOTE_EXT_FEATURES: 2872 hci_cs_read_remote_ext_features(hdev, ev->status); 2873 break; 2874 2875 case HCI_OP_SETUP_SYNC_CONN: 2876 hci_cs_setup_sync_conn(hdev, ev->status); 2877 break; 2878 2879 case HCI_OP_SNIFF_MODE: 2880 hci_cs_sniff_mode(hdev, ev->status); 2881 break; 2882 2883 case HCI_OP_EXIT_SNIFF_MODE: 2884 hci_cs_exit_sniff_mode(hdev, ev->status); 2885 break; 2886 2887 case HCI_OP_DISCONNECT: 2888 hci_cs_disconnect(hdev, ev->status); 2889 break; 2890 2891 case HCI_OP_CREATE_PHY_LINK: 2892 hci_cs_create_phylink(hdev, ev->status); 2893 break; 2894 2895 case HCI_OP_ACCEPT_PHY_LINK: 2896 hci_cs_accept_phylink(hdev, ev->status); 2897 break; 2898 2899 case HCI_OP_LE_CREATE_CONN: 2900 hci_cs_le_create_conn(hdev, ev->status); 2901 break; 2902 2903 case HCI_OP_LE_START_ENC: 2904 hci_cs_le_start_enc(hdev, ev->status); 2905 break; 2906 2907 default: 2908 BT_DBG("%s opcode 0x%4.4x", hdev->name, opcode); 2909 break; 2910 } 2911 2912 if (opcode != HCI_OP_NOP) 2913 cancel_delayed_work(&hdev->cmd_timer); 2914 2915 if (ev->status || 2916 (hdev->sent_cmd && !bt_cb(hdev->sent_cmd)->req.event)) 2917 hci_req_cmd_complete(hdev, opcode, ev->status); 2918 2919 if (ev->ncmd && !test_bit(HCI_RESET, &hdev->flags)) { 2920 atomic_set(&hdev->cmd_cnt, 1); 2921 if (!skb_queue_empty(&hdev->cmd_q)) 2922 queue_work(hdev->workqueue, &hdev->cmd_work); 2923 } 2924} 2925 2926static void hci_role_change_evt(struct hci_dev *hdev, struct sk_buff *skb) 2927{ 2928 struct hci_ev_role_change *ev = (void *) skb->data; 2929 struct hci_conn *conn; 2930 2931 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status); 2932 2933 hci_dev_lock(hdev); 2934 2935 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr); 2936 if (conn) { 2937 if (!ev->status) 2938 conn->role = ev->role; 2939 2940 clear_bit(HCI_CONN_RSWITCH_PEND, &conn->flags); 2941 2942 hci_role_switch_cfm(conn, ev->status, ev->role); 2943 } 2944 2945 hci_dev_unlock(hdev); 2946} 2947 2948static void hci_num_comp_pkts_evt(struct hci_dev *hdev, struct sk_buff *skb) 2949{ 2950 struct hci_ev_num_comp_pkts *ev = (void *) skb->data; 2951 int i; 2952 2953 if (hdev->flow_ctl_mode != HCI_FLOW_CTL_MODE_PACKET_BASED) { 2954 BT_ERR("Wrong event for mode %d", hdev->flow_ctl_mode); 2955 return; 2956 } 2957 2958 if (skb->len < sizeof(*ev) || skb->len < sizeof(*ev) + 2959 ev->num_hndl * sizeof(struct hci_comp_pkts_info)) { 2960 BT_DBG("%s bad parameters", hdev->name); 2961 return; 2962 } 2963 2964 BT_DBG("%s num_hndl %d", hdev->name, ev->num_hndl); 2965 2966 for (i = 0; i < ev->num_hndl; i++) { 2967 struct hci_comp_pkts_info *info = &ev->handles[i]; 2968 struct hci_conn *conn; 2969 __u16 handle, count; 2970 2971 handle = __le16_to_cpu(info->handle); 2972 count = __le16_to_cpu(info->count); 2973 2974 conn = hci_conn_hash_lookup_handle(hdev, handle); 2975 if (!conn) 2976 continue; 2977 2978 conn->sent -= count; 2979 2980 switch (conn->type) { 2981 case ACL_LINK: 2982 hdev->acl_cnt += count; 2983 if (hdev->acl_cnt > hdev->acl_pkts) 2984 hdev->acl_cnt = hdev->acl_pkts; 2985 break; 2986 2987 case LE_LINK: 2988 if (hdev->le_pkts) { 2989 hdev->le_cnt += count; 2990 if (hdev->le_cnt > hdev->le_pkts) 2991 hdev->le_cnt = hdev->le_pkts; 2992 } else { 2993 hdev->acl_cnt += count; 2994 if (hdev->acl_cnt > hdev->acl_pkts) 2995 hdev->acl_cnt = hdev->acl_pkts; 2996 } 2997 break; 2998 2999 case SCO_LINK: 3000 hdev->sco_cnt += count; 3001 if (hdev->sco_cnt > hdev->sco_pkts) 3002 hdev->sco_cnt = hdev->sco_pkts; 3003 break; 3004 3005 default: 3006 BT_ERR("Unknown type %d conn %p", conn->type, conn); 3007 break; 3008 } 3009 } 3010 3011 queue_work(hdev->workqueue, &hdev->tx_work); 3012} 3013 3014static struct hci_conn *__hci_conn_lookup_handle(struct hci_dev *hdev, 3015 __u16 handle) 3016{ 3017 struct hci_chan *chan; 3018 3019 switch (hdev->dev_type) { 3020 case HCI_BREDR: 3021 return hci_conn_hash_lookup_handle(hdev, handle); 3022 case HCI_AMP: 3023 chan = hci_chan_lookup_handle(hdev, handle); 3024 if (chan) 3025 return chan->conn; 3026 break; 3027 default: 3028 BT_ERR("%s unknown dev_type %d", hdev->name, hdev->dev_type); 3029 break; 3030 } 3031 3032 return NULL; 3033} 3034 3035static void hci_num_comp_blocks_evt(struct hci_dev *hdev, struct sk_buff *skb) 3036{ 3037 struct hci_ev_num_comp_blocks *ev = (void *) skb->data; 3038 int i; 3039 3040 if (hdev->flow_ctl_mode != HCI_FLOW_CTL_MODE_BLOCK_BASED) { 3041 BT_ERR("Wrong event for mode %d", hdev->flow_ctl_mode); 3042 return; 3043 } 3044 3045 if (skb->len < sizeof(*ev) || skb->len < sizeof(*ev) + 3046 ev->num_hndl * sizeof(struct hci_comp_blocks_info)) { 3047 BT_DBG("%s bad parameters", hdev->name); 3048 return; 3049 } 3050 3051 BT_DBG("%s num_blocks %d num_hndl %d", hdev->name, ev->num_blocks, 3052 ev->num_hndl); 3053 3054 for (i = 0; i < ev->num_hndl; i++) { 3055 struct hci_comp_blocks_info *info = &ev->handles[i]; 3056 struct hci_conn *conn = NULL; 3057 __u16 handle, block_count; 3058 3059 handle = __le16_to_cpu(info->handle); 3060 block_count = __le16_to_cpu(info->blocks); 3061 3062 conn = __hci_conn_lookup_handle(hdev, handle); 3063 if (!conn) 3064 continue; 3065 3066 conn->sent -= block_count; 3067 3068 switch (conn->type) { 3069 case ACL_LINK: 3070 case AMP_LINK: 3071 hdev->block_cnt += block_count; 3072 if (hdev->block_cnt > hdev->num_blocks) 3073 hdev->block_cnt = hdev->num_blocks; 3074 break; 3075 3076 default: 3077 BT_ERR("Unknown type %d conn %p", conn->type, conn); 3078 break; 3079 } 3080 } 3081 3082 queue_work(hdev->workqueue, &hdev->tx_work); 3083} 3084 3085static void hci_mode_change_evt(struct hci_dev *hdev, struct sk_buff *skb) 3086{ 3087 struct hci_ev_mode_change *ev = (void *) skb->data; 3088 struct hci_conn *conn; 3089 3090 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status); 3091 3092 hci_dev_lock(hdev); 3093 3094 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle)); 3095 if (conn) { 3096 conn->mode = ev->mode; 3097 3098 if (!test_and_clear_bit(HCI_CONN_MODE_CHANGE_PEND, 3099 &conn->flags)) { 3100 if (conn->mode == HCI_CM_ACTIVE) 3101 set_bit(HCI_CONN_POWER_SAVE, &conn->flags); 3102 else 3103 clear_bit(HCI_CONN_POWER_SAVE, &conn->flags); 3104 } 3105 3106 if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags)) 3107 hci_sco_setup(conn, ev->status); 3108 } 3109 3110 hci_dev_unlock(hdev); 3111} 3112 3113static void hci_pin_code_request_evt(struct hci_dev *hdev, struct sk_buff *skb) 3114{ 3115 struct hci_ev_pin_code_req *ev = (void *) skb->data; 3116 struct hci_conn *conn; 3117 3118 BT_DBG("%s", hdev->name); 3119 3120 hci_dev_lock(hdev); 3121 3122 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr); 3123 if (!conn) 3124 goto unlock; 3125 3126 if (conn->state == BT_CONNECTED) { 3127 hci_conn_hold(conn); 3128 conn->disc_timeout = HCI_PAIRING_TIMEOUT; 3129 hci_conn_drop(conn); 3130 } 3131 3132 if (!test_bit(HCI_BONDABLE, &hdev->dev_flags) && 3133 !test_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags)) { 3134 hci_send_cmd(hdev, HCI_OP_PIN_CODE_NEG_REPLY, 3135 sizeof(ev->bdaddr), &ev->bdaddr); 3136 } else if (test_bit(HCI_MGMT, &hdev->dev_flags)) { 3137 u8 secure; 3138 3139 if (conn->pending_sec_level == BT_SECURITY_HIGH) 3140 secure = 1; 3141 else 3142 secure = 0; 3143 3144 mgmt_pin_code_request(hdev, &ev->bdaddr, secure); 3145 } 3146 3147unlock: 3148 hci_dev_unlock(hdev); 3149} 3150 3151static void hci_link_key_request_evt(struct hci_dev *hdev, struct sk_buff *skb) 3152{ 3153 struct hci_ev_link_key_req *ev = (void *) skb->data; 3154 struct hci_cp_link_key_reply cp; 3155 struct hci_conn *conn; 3156 struct link_key *key; 3157 3158 BT_DBG("%s", hdev->name); 3159 3160 if (!test_bit(HCI_MGMT, &hdev->dev_flags)) 3161 return; 3162 3163 hci_dev_lock(hdev); 3164 3165 key = hci_find_link_key(hdev, &ev->bdaddr); 3166 if (!key) { 3167 BT_DBG("%s link key not found for %pMR", hdev->name, 3168 &ev->bdaddr); 3169 goto not_found; 3170 } 3171 3172 BT_DBG("%s found key type %u for %pMR", hdev->name, key->type, 3173 &ev->bdaddr); 3174 3175 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr); 3176 if (conn) { 3177 if ((key->type == HCI_LK_UNAUTH_COMBINATION_P192 || 3178 key->type == HCI_LK_UNAUTH_COMBINATION_P256) && 3179 conn->auth_type != 0xff && (conn->auth_type & 0x01)) { 3180 BT_DBG("%s ignoring unauthenticated key", hdev->name); 3181 goto not_found; 3182 } 3183 3184 if (key->type == HCI_LK_COMBINATION && key->pin_len < 16 && 3185 (conn->pending_sec_level == BT_SECURITY_HIGH || 3186 conn->pending_sec_level == BT_SECURITY_FIPS)) { 3187 BT_DBG("%s ignoring key unauthenticated for high security", 3188 hdev->name); 3189 goto not_found; 3190 } 3191 3192 conn->key_type = key->type; 3193 conn->pin_length = key->pin_len; 3194 } 3195 3196 bacpy(&cp.bdaddr, &ev->bdaddr); 3197 memcpy(cp.link_key, key->val, HCI_LINK_KEY_SIZE); 3198 3199 hci_send_cmd(hdev, HCI_OP_LINK_KEY_REPLY, sizeof(cp), &cp); 3200 3201 hci_dev_unlock(hdev); 3202 3203 return; 3204 3205not_found: 3206 hci_send_cmd(hdev, HCI_OP_LINK_KEY_NEG_REPLY, 6, &ev->bdaddr); 3207 hci_dev_unlock(hdev); 3208} 3209 3210static void hci_link_key_notify_evt(struct hci_dev *hdev, struct sk_buff *skb) 3211{ 3212 struct hci_ev_link_key_notify *ev = (void *) skb->data; 3213 struct hci_conn *conn; 3214 struct link_key *key; 3215 bool persistent; 3216 u8 pin_len = 0; 3217 3218 BT_DBG("%s", hdev->name); 3219 3220 hci_dev_lock(hdev); 3221 3222 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr); 3223 if (conn) { 3224 hci_conn_hold(conn); 3225 conn->disc_timeout = HCI_DISCONN_TIMEOUT; 3226 pin_len = conn->pin_length; 3227 3228 if (ev->key_type != HCI_LK_CHANGED_COMBINATION) 3229 conn->key_type = ev->key_type; 3230 3231 hci_conn_drop(conn); 3232 } 3233 3234 if (!test_bit(HCI_MGMT, &hdev->dev_flags)) 3235 goto unlock; 3236 3237 key = hci_add_link_key(hdev, conn, &ev->bdaddr, ev->link_key, 3238 ev->key_type, pin_len, &persistent); 3239 if (!key) 3240 goto unlock; 3241 3242 mgmt_new_link_key(hdev, key, persistent); 3243 3244 /* Keep debug keys around only if the HCI_KEEP_DEBUG_KEYS flag 3245 * is set. If it's not set simply remove the key from the kernel 3246 * list (we've still notified user space about it but with 3247 * store_hint being 0). 3248 */ 3249 if (key->type == HCI_LK_DEBUG_COMBINATION && 3250 !test_bit(HCI_KEEP_DEBUG_KEYS, &hdev->dev_flags)) { 3251 list_del(&key->list); 3252 kfree(key); 3253 } else if (conn) { 3254 if (persistent) 3255 clear_bit(HCI_CONN_FLUSH_KEY, &conn->flags); 3256 else 3257 set_bit(HCI_CONN_FLUSH_KEY, &conn->flags); 3258 } 3259 3260unlock: 3261 hci_dev_unlock(hdev); 3262} 3263 3264static void hci_clock_offset_evt(struct hci_dev *hdev, struct sk_buff *skb) 3265{ 3266 struct hci_ev_clock_offset *ev = (void *) skb->data; 3267 struct hci_conn *conn; 3268 3269 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status); 3270 3271 hci_dev_lock(hdev); 3272 3273 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle)); 3274 if (conn && !ev->status) { 3275 struct inquiry_entry *ie; 3276 3277 ie = hci_inquiry_cache_lookup(hdev, &conn->dst); 3278 if (ie) { 3279 ie->data.clock_offset = ev->clock_offset; 3280 ie->timestamp = jiffies; 3281 } 3282 } 3283 3284 hci_dev_unlock(hdev); 3285} 3286 3287static void hci_pkt_type_change_evt(struct hci_dev *hdev, struct sk_buff *skb) 3288{ 3289 struct hci_ev_pkt_type_change *ev = (void *) skb->data; 3290 struct hci_conn *conn; 3291 3292 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status); 3293 3294 hci_dev_lock(hdev); 3295 3296 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle)); 3297 if (conn && !ev->status) 3298 conn->pkt_type = __le16_to_cpu(ev->pkt_type); 3299 3300 hci_dev_unlock(hdev); 3301} 3302 3303static void hci_pscan_rep_mode_evt(struct hci_dev *hdev, struct sk_buff *skb) 3304{ 3305 struct hci_ev_pscan_rep_mode *ev = (void *) skb->data; 3306 struct inquiry_entry *ie; 3307 3308 BT_DBG("%s", hdev->name); 3309 3310 hci_dev_lock(hdev); 3311 3312 ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr); 3313 if (ie) { 3314 ie->data.pscan_rep_mode = ev->pscan_rep_mode; 3315 ie->timestamp = jiffies; 3316 } 3317 3318 hci_dev_unlock(hdev); 3319} 3320 3321static void hci_inquiry_result_with_rssi_evt(struct hci_dev *hdev, 3322 struct sk_buff *skb) 3323{ 3324 struct inquiry_data data; 3325 int num_rsp = *((__u8 *) skb->data); 3326 3327 BT_DBG("%s num_rsp %d", hdev->name, num_rsp); 3328 3329 if (!num_rsp) 3330 return; 3331 3332 if (test_bit(HCI_PERIODIC_INQ, &hdev->dev_flags)) 3333 return; 3334 3335 hci_dev_lock(hdev); 3336 3337 if ((skb->len - 1) / num_rsp != sizeof(struct inquiry_info_with_rssi)) { 3338 struct inquiry_info_with_rssi_and_pscan_mode *info; 3339 info = (void *) (skb->data + 1); 3340 3341 for (; num_rsp; num_rsp--, info++) { 3342 u32 flags; 3343 3344 bacpy(&data.bdaddr, &info->bdaddr); 3345 data.pscan_rep_mode = info->pscan_rep_mode; 3346 data.pscan_period_mode = info->pscan_period_mode; 3347 data.pscan_mode = info->pscan_mode; 3348 memcpy(data.dev_class, info->dev_class, 3); 3349 data.clock_offset = info->clock_offset; 3350 data.rssi = info->rssi; 3351 data.ssp_mode = 0x00; 3352 3353 flags = hci_inquiry_cache_update(hdev, &data, false); 3354 3355 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00, 3356 info->dev_class, info->rssi, 3357 flags, NULL, 0, NULL, 0); 3358 } 3359 } else { 3360 struct inquiry_info_with_rssi *info = (void *) (skb->data + 1); 3361 3362 for (; num_rsp; num_rsp--, info++) { 3363 u32 flags; 3364 3365 bacpy(&data.bdaddr, &info->bdaddr); 3366 data.pscan_rep_mode = info->pscan_rep_mode; 3367 data.pscan_period_mode = info->pscan_period_mode; 3368 data.pscan_mode = 0x00; 3369 memcpy(data.dev_class, info->dev_class, 3); 3370 data.clock_offset = info->clock_offset; 3371 data.rssi = info->rssi; 3372 data.ssp_mode = 0x00; 3373 3374 flags = hci_inquiry_cache_update(hdev, &data, false); 3375 3376 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00, 3377 info->dev_class, info->rssi, 3378 flags, NULL, 0, NULL, 0); 3379 } 3380 } 3381 3382 hci_dev_unlock(hdev); 3383} 3384 3385static void hci_remote_ext_features_evt(struct hci_dev *hdev, 3386 struct sk_buff *skb) 3387{ 3388 struct hci_ev_remote_ext_features *ev = (void *) skb->data; 3389 struct hci_conn *conn; 3390 3391 BT_DBG("%s", hdev->name); 3392 3393 hci_dev_lock(hdev); 3394 3395 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle)); 3396 if (!conn) 3397 goto unlock; 3398 3399 if (ev->page < HCI_MAX_PAGES) 3400 memcpy(conn->features[ev->page], ev->features, 8); 3401 3402 if (!ev->status && ev->page == 0x01) { 3403 struct inquiry_entry *ie; 3404 3405 ie = hci_inquiry_cache_lookup(hdev, &conn->dst); 3406 if (ie) 3407 ie->data.ssp_mode = (ev->features[0] & LMP_HOST_SSP); 3408 3409 if (ev->features[0] & LMP_HOST_SSP) { 3410 set_bit(HCI_CONN_SSP_ENABLED, &conn->flags); 3411 } else { 3412 /* It is mandatory by the Bluetooth specification that 3413 * Extended Inquiry Results are only used when Secure 3414 * Simple Pairing is enabled, but some devices violate 3415 * this. 3416 * 3417 * To make these devices work, the internal SSP 3418 * enabled flag needs to be cleared if the remote host 3419 * features do not indicate SSP support */ 3420 clear_bit(HCI_CONN_SSP_ENABLED, &conn->flags); 3421 } 3422 3423 if (ev->features[0] & LMP_HOST_SC) 3424 set_bit(HCI_CONN_SC_ENABLED, &conn->flags); 3425 } 3426 3427 if (conn->state != BT_CONFIG) 3428 goto unlock; 3429 3430 if (!ev->status && !test_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags)) { 3431 struct hci_cp_remote_name_req cp; 3432 memset(&cp, 0, sizeof(cp)); 3433 bacpy(&cp.bdaddr, &conn->dst); 3434 cp.pscan_rep_mode = 0x02; 3435 hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp); 3436 } else if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags)) 3437 mgmt_device_connected(hdev, &conn->dst, conn->type, 3438 conn->dst_type, 0, NULL, 0, 3439 conn->dev_class); 3440 3441 if (!hci_outgoing_auth_needed(hdev, conn)) { 3442 conn->state = BT_CONNECTED; 3443 hci_proto_connect_cfm(conn, ev->status); 3444 hci_conn_drop(conn); 3445 } 3446 3447unlock: 3448 hci_dev_unlock(hdev); 3449} 3450 3451static void hci_sync_conn_complete_evt(struct hci_dev *hdev, 3452 struct sk_buff *skb) 3453{ 3454 struct hci_ev_sync_conn_complete *ev = (void *) skb->data; 3455 struct hci_conn *conn; 3456 3457 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status); 3458 3459 hci_dev_lock(hdev); 3460 3461 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr); 3462 if (!conn) { 3463 if (ev->link_type == ESCO_LINK) 3464 goto unlock; 3465 3466 conn = hci_conn_hash_lookup_ba(hdev, ESCO_LINK, &ev->bdaddr); 3467 if (!conn) 3468 goto unlock; 3469 3470 conn->type = SCO_LINK; 3471 } 3472 3473 switch (ev->status) { 3474 case 0x00: 3475 conn->handle = __le16_to_cpu(ev->handle); 3476 conn->state = BT_CONNECTED; 3477 3478 hci_conn_add_sysfs(conn); 3479 break; 3480 3481 case 0x10: /* Connection Accept Timeout */ 3482 case 0x0d: /* Connection Rejected due to Limited Resources */ 3483 case 0x11: /* Unsupported Feature or Parameter Value */ 3484 case 0x1c: /* SCO interval rejected */ 3485 case 0x1a: /* Unsupported Remote Feature */ 3486 case 0x1f: /* Unspecified error */ 3487 case 0x20: /* Unsupported LMP Parameter value */ 3488 if (conn->out) { 3489 conn->pkt_type = (hdev->esco_type & SCO_ESCO_MASK) | 3490 (hdev->esco_type & EDR_ESCO_MASK); 3491 if (hci_setup_sync(conn, conn->link->handle)) 3492 goto unlock; 3493 } 3494 /* fall through */ 3495 3496 default: 3497 conn->state = BT_CLOSED; 3498 break; 3499 } 3500 3501 hci_proto_connect_cfm(conn, ev->status); 3502 if (ev->status) 3503 hci_conn_del(conn); 3504 3505unlock: 3506 hci_dev_unlock(hdev); 3507} 3508 3509static inline size_t eir_get_length(u8 *eir, size_t eir_len) 3510{ 3511 size_t parsed = 0; 3512 3513 while (parsed < eir_len) { 3514 u8 field_len = eir[0]; 3515 3516 if (field_len == 0) 3517 return parsed; 3518 3519 parsed += field_len + 1; 3520 eir += field_len + 1; 3521 } 3522 3523 return eir_len; 3524} 3525 3526static void hci_extended_inquiry_result_evt(struct hci_dev *hdev, 3527 struct sk_buff *skb) 3528{ 3529 struct inquiry_data data; 3530 struct extended_inquiry_info *info = (void *) (skb->data + 1); 3531 int num_rsp = *((__u8 *) skb->data); 3532 size_t eir_len; 3533 3534 BT_DBG("%s num_rsp %d", hdev->name, num_rsp); 3535 3536 if (!num_rsp) 3537 return; 3538 3539 if (test_bit(HCI_PERIODIC_INQ, &hdev->dev_flags)) 3540 return; 3541 3542 hci_dev_lock(hdev); 3543 3544 for (; num_rsp; num_rsp--, info++) { 3545 u32 flags; 3546 bool name_known; 3547 3548 bacpy(&data.bdaddr, &info->bdaddr); 3549 data.pscan_rep_mode = info->pscan_rep_mode; 3550 data.pscan_period_mode = info->pscan_period_mode; 3551 data.pscan_mode = 0x00; 3552 memcpy(data.dev_class, info->dev_class, 3); 3553 data.clock_offset = info->clock_offset; 3554 data.rssi = info->rssi; 3555 data.ssp_mode = 0x01; 3556 3557 if (test_bit(HCI_MGMT, &hdev->dev_flags)) 3558 name_known = eir_has_data_type(info->data, 3559 sizeof(info->data), 3560 EIR_NAME_COMPLETE); 3561 else 3562 name_known = true; 3563 3564 flags = hci_inquiry_cache_update(hdev, &data, name_known); 3565 3566 eir_len = eir_get_length(info->data, sizeof(info->data)); 3567 3568 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00, 3569 info->dev_class, info->rssi, 3570 flags, info->data, eir_len, NULL, 0); 3571 } 3572 3573 hci_dev_unlock(hdev); 3574} 3575 3576static void hci_key_refresh_complete_evt(struct hci_dev *hdev, 3577 struct sk_buff *skb) 3578{ 3579 struct hci_ev_key_refresh_complete *ev = (void *) skb->data; 3580 struct hci_conn *conn; 3581 3582 BT_DBG("%s status 0x%2.2x handle 0x%4.4x", hdev->name, ev->status, 3583 __le16_to_cpu(ev->handle)); 3584 3585 hci_dev_lock(hdev); 3586 3587 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle)); 3588 if (!conn) 3589 goto unlock; 3590 3591 /* For BR/EDR the necessary steps are taken through the 3592 * auth_complete event. 3593 */ 3594 if (conn->type != LE_LINK) 3595 goto unlock; 3596 3597 if (!ev->status) 3598 conn->sec_level = conn->pending_sec_level; 3599 3600 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags); 3601 3602 if (ev->status && conn->state == BT_CONNECTED) { 3603 hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE); 3604 hci_conn_drop(conn); 3605 goto unlock; 3606 } 3607 3608 if (conn->state == BT_CONFIG) { 3609 if (!ev->status) 3610 conn->state = BT_CONNECTED; 3611 3612 hci_proto_connect_cfm(conn, ev->status); 3613 hci_conn_drop(conn); 3614 } else { 3615 hci_auth_cfm(conn, ev->status); 3616 3617 hci_conn_hold(conn); 3618 conn->disc_timeout = HCI_DISCONN_TIMEOUT; 3619 hci_conn_drop(conn); 3620 } 3621 3622unlock: 3623 hci_dev_unlock(hdev); 3624} 3625 3626static u8 hci_get_auth_req(struct hci_conn *conn) 3627{ 3628 /* If remote requests no-bonding follow that lead */ 3629 if (conn->remote_auth == HCI_AT_NO_BONDING || 3630 conn->remote_auth == HCI_AT_NO_BONDING_MITM) 3631 return conn->remote_auth | (conn->auth_type & 0x01); 3632 3633 /* If both remote and local have enough IO capabilities, require 3634 * MITM protection 3635 */ 3636 if (conn->remote_cap != HCI_IO_NO_INPUT_OUTPUT && 3637 conn->io_capability != HCI_IO_NO_INPUT_OUTPUT) 3638 return conn->remote_auth | 0x01; 3639 3640 /* No MITM protection possible so ignore remote requirement */ 3641 return (conn->remote_auth & ~0x01) | (conn->auth_type & 0x01); 3642} 3643 3644static void hci_io_capa_request_evt(struct hci_dev *hdev, struct sk_buff *skb) 3645{ 3646 struct hci_ev_io_capa_request *ev = (void *) skb->data; 3647 struct hci_conn *conn; 3648 3649 BT_DBG("%s", hdev->name); 3650 3651 hci_dev_lock(hdev); 3652 3653 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr); 3654 if (!conn) 3655 goto unlock; 3656 3657 hci_conn_hold(conn); 3658 3659 if (!test_bit(HCI_MGMT, &hdev->dev_flags)) 3660 goto unlock; 3661 3662 /* Allow pairing if we're pairable, the initiators of the 3663 * pairing or if the remote is not requesting bonding. 3664 */ 3665 if (test_bit(HCI_BONDABLE, &hdev->dev_flags) || 3666 test_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags) || 3667 (conn->remote_auth & ~0x01) == HCI_AT_NO_BONDING) { 3668 struct hci_cp_io_capability_reply cp; 3669 3670 bacpy(&cp.bdaddr, &ev->bdaddr); 3671 /* Change the IO capability from KeyboardDisplay 3672 * to DisplayYesNo as it is not supported by BT spec. */ 3673 cp.capability = (conn->io_capability == 0x04) ? 3674 HCI_IO_DISPLAY_YESNO : conn->io_capability; 3675 3676 /* If we are initiators, there is no remote information yet */ 3677 if (conn->remote_auth == 0xff) { 3678 /* Request MITM protection if our IO caps allow it 3679 * except for the no-bonding case. 3680 */ 3681 if (conn->io_capability != HCI_IO_NO_INPUT_OUTPUT && 3682 conn->auth_type != HCI_AT_NO_BONDING) 3683 conn->auth_type |= 0x01; 3684 } else { 3685 conn->auth_type = hci_get_auth_req(conn); 3686 } 3687 3688 /* If we're not bondable, force one of the non-bondable 3689 * authentication requirement values. 3690 */ 3691 if (!test_bit(HCI_BONDABLE, &hdev->dev_flags)) 3692 conn->auth_type &= HCI_AT_NO_BONDING_MITM; 3693 3694 cp.authentication = conn->auth_type; 3695 3696 if (hci_find_remote_oob_data(hdev, &conn->dst) && 3697 (conn->out || test_bit(HCI_CONN_REMOTE_OOB, &conn->flags))) 3698 cp.oob_data = 0x01; 3699 else 3700 cp.oob_data = 0x00; 3701 3702 hci_send_cmd(hdev, HCI_OP_IO_CAPABILITY_REPLY, 3703 sizeof(cp), &cp); 3704 } else { 3705 struct hci_cp_io_capability_neg_reply cp; 3706 3707 bacpy(&cp.bdaddr, &ev->bdaddr); 3708 cp.reason = HCI_ERROR_PAIRING_NOT_ALLOWED; 3709 3710 hci_send_cmd(hdev, HCI_OP_IO_CAPABILITY_NEG_REPLY, 3711 sizeof(cp), &cp); 3712 } 3713 3714unlock: 3715 hci_dev_unlock(hdev); 3716} 3717 3718static void hci_io_capa_reply_evt(struct hci_dev *hdev, struct sk_buff *skb) 3719{ 3720 struct hci_ev_io_capa_reply *ev = (void *) skb->data; 3721 struct hci_conn *conn; 3722 3723 BT_DBG("%s", hdev->name); 3724 3725 hci_dev_lock(hdev); 3726 3727 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr); 3728 if (!conn) 3729 goto unlock; 3730 3731 conn->remote_cap = ev->capability; 3732 conn->remote_auth = ev->authentication; 3733 if (ev->oob_data) 3734 set_bit(HCI_CONN_REMOTE_OOB, &conn->flags); 3735 3736unlock: 3737 hci_dev_unlock(hdev); 3738} 3739 3740static void hci_user_confirm_request_evt(struct hci_dev *hdev, 3741 struct sk_buff *skb) 3742{ 3743 struct hci_ev_user_confirm_req *ev = (void *) skb->data; 3744 int loc_mitm, rem_mitm, confirm_hint = 0; 3745 struct hci_conn *conn; 3746 3747 BT_DBG("%s", hdev->name); 3748 3749 hci_dev_lock(hdev); 3750 3751 if (!test_bit(HCI_MGMT, &hdev->dev_flags)) 3752 goto unlock; 3753 3754 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr); 3755 if (!conn) 3756 goto unlock; 3757 3758 loc_mitm = (conn->auth_type & 0x01); 3759 rem_mitm = (conn->remote_auth & 0x01); 3760 3761 /* If we require MITM but the remote device can't provide that 3762 * (it has NoInputNoOutput) then reject the confirmation 3763 * request. We check the security level here since it doesn't 3764 * necessarily match conn->auth_type. 3765 */ 3766 if (conn->pending_sec_level > BT_SECURITY_MEDIUM && 3767 conn->remote_cap == HCI_IO_NO_INPUT_OUTPUT) { 3768 BT_DBG("Rejecting request: remote device can't provide MITM"); 3769 hci_send_cmd(hdev, HCI_OP_USER_CONFIRM_NEG_REPLY, 3770 sizeof(ev->bdaddr), &ev->bdaddr); 3771 goto unlock; 3772 } 3773 3774 /* If no side requires MITM protection; auto-accept */ 3775 if ((!loc_mitm || conn->remote_cap == HCI_IO_NO_INPUT_OUTPUT) && 3776 (!rem_mitm || conn->io_capability == HCI_IO_NO_INPUT_OUTPUT)) { 3777 3778 /* If we're not the initiators request authorization to 3779 * proceed from user space (mgmt_user_confirm with 3780 * confirm_hint set to 1). The exception is if neither 3781 * side had MITM or if the local IO capability is 3782 * NoInputNoOutput, in which case we do auto-accept 3783 */ 3784 if (!test_bit(HCI_CONN_AUTH_PEND, &conn->flags) && 3785 conn->io_capability != HCI_IO_NO_INPUT_OUTPUT && 3786 (loc_mitm || rem_mitm)) { 3787 BT_DBG("Confirming auto-accept as acceptor"); 3788 confirm_hint = 1; 3789 goto confirm; 3790 } 3791 3792 BT_DBG("Auto-accept of user confirmation with %ums delay", 3793 hdev->auto_accept_delay); 3794 3795 if (hdev->auto_accept_delay > 0) { 3796 int delay = msecs_to_jiffies(hdev->auto_accept_delay); 3797 queue_delayed_work(conn->hdev->workqueue, 3798 &conn->auto_accept_work, delay); 3799 goto unlock; 3800 } 3801 3802 hci_send_cmd(hdev, HCI_OP_USER_CONFIRM_REPLY, 3803 sizeof(ev->bdaddr), &ev->bdaddr); 3804 goto unlock; 3805 } 3806 3807confirm: 3808 mgmt_user_confirm_request(hdev, &ev->bdaddr, ACL_LINK, 0, 3809 le32_to_cpu(ev->passkey), confirm_hint); 3810 3811unlock: 3812 hci_dev_unlock(hdev); 3813} 3814 3815static void hci_user_passkey_request_evt(struct hci_dev *hdev, 3816 struct sk_buff *skb) 3817{ 3818 struct hci_ev_user_passkey_req *ev = (void *) skb->data; 3819 3820 BT_DBG("%s", hdev->name); 3821 3822 if (test_bit(HCI_MGMT, &hdev->dev_flags)) 3823 mgmt_user_passkey_request(hdev, &ev->bdaddr, ACL_LINK, 0); 3824} 3825 3826static void hci_user_passkey_notify_evt(struct hci_dev *hdev, 3827 struct sk_buff *skb) 3828{ 3829 struct hci_ev_user_passkey_notify *ev = (void *) skb->data; 3830 struct hci_conn *conn; 3831 3832 BT_DBG("%s", hdev->name); 3833 3834 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr); 3835 if (!conn) 3836 return; 3837 3838 conn->passkey_notify = __le32_to_cpu(ev->passkey); 3839 conn->passkey_entered = 0; 3840 3841 if (test_bit(HCI_MGMT, &hdev->dev_flags)) 3842 mgmt_user_passkey_notify(hdev, &conn->dst, conn->type, 3843 conn->dst_type, conn->passkey_notify, 3844 conn->passkey_entered); 3845} 3846 3847static void hci_keypress_notify_evt(struct hci_dev *hdev, struct sk_buff *skb) 3848{ 3849 struct hci_ev_keypress_notify *ev = (void *) skb->data; 3850 struct hci_conn *conn; 3851 3852 BT_DBG("%s", hdev->name); 3853 3854 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr); 3855 if (!conn) 3856 return; 3857 3858 switch (ev->type) { 3859 case HCI_KEYPRESS_STARTED: 3860 conn->passkey_entered = 0; 3861 return; 3862 3863 case HCI_KEYPRESS_ENTERED: 3864 conn->passkey_entered++; 3865 break; 3866 3867 case HCI_KEYPRESS_ERASED: 3868 conn->passkey_entered--; 3869 break; 3870 3871 case HCI_KEYPRESS_CLEARED: 3872 conn->passkey_entered = 0; 3873 break; 3874 3875 case HCI_KEYPRESS_COMPLETED: 3876 return; 3877 } 3878 3879 if (test_bit(HCI_MGMT, &hdev->dev_flags)) 3880 mgmt_user_passkey_notify(hdev, &conn->dst, conn->type, 3881 conn->dst_type, conn->passkey_notify, 3882 conn->passkey_entered); 3883} 3884 3885static void hci_simple_pair_complete_evt(struct hci_dev *hdev, 3886 struct sk_buff *skb) 3887{ 3888 struct hci_ev_simple_pair_complete *ev = (void *) skb->data; 3889 struct hci_conn *conn; 3890 3891 BT_DBG("%s", hdev->name); 3892 3893 hci_dev_lock(hdev); 3894 3895 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr); 3896 if (!conn) 3897 goto unlock; 3898 3899 /* Reset the authentication requirement to unknown */ 3900 conn->remote_auth = 0xff; 3901 3902 /* To avoid duplicate auth_failed events to user space we check 3903 * the HCI_CONN_AUTH_PEND flag which will be set if we 3904 * initiated the authentication. A traditional auth_complete 3905 * event gets always produced as initiator and is also mapped to 3906 * the mgmt_auth_failed event */ 3907 if (!test_bit(HCI_CONN_AUTH_PEND, &conn->flags) && ev->status) 3908 mgmt_auth_failed(conn, ev->status); 3909 3910 hci_conn_drop(conn); 3911 3912unlock: 3913 hci_dev_unlock(hdev); 3914} 3915 3916static void hci_remote_host_features_evt(struct hci_dev *hdev, 3917 struct sk_buff *skb) 3918{ 3919 struct hci_ev_remote_host_features *ev = (void *) skb->data; 3920 struct inquiry_entry *ie; 3921 struct hci_conn *conn; 3922 3923 BT_DBG("%s", hdev->name); 3924 3925 hci_dev_lock(hdev); 3926 3927 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr); 3928 if (conn) 3929 memcpy(conn->features[1], ev->features, 8); 3930 3931 ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr); 3932 if (ie) 3933 ie->data.ssp_mode = (ev->features[0] & LMP_HOST_SSP); 3934 3935 hci_dev_unlock(hdev); 3936} 3937 3938static void hci_remote_oob_data_request_evt(struct hci_dev *hdev, 3939 struct sk_buff *skb) 3940{ 3941 struct hci_ev_remote_oob_data_request *ev = (void *) skb->data; 3942 struct oob_data *data; 3943 3944 BT_DBG("%s", hdev->name); 3945 3946 hci_dev_lock(hdev); 3947 3948 if (!test_bit(HCI_MGMT, &hdev->dev_flags)) 3949 goto unlock; 3950 3951 data = hci_find_remote_oob_data(hdev, &ev->bdaddr); 3952 if (data) { 3953 if (test_bit(HCI_SC_ENABLED, &hdev->dev_flags)) { 3954 struct hci_cp_remote_oob_ext_data_reply cp; 3955 3956 bacpy(&cp.bdaddr, &ev->bdaddr); 3957 memcpy(cp.hash192, data->hash192, sizeof(cp.hash192)); 3958 memcpy(cp.randomizer192, data->randomizer192, 3959 sizeof(cp.randomizer192)); 3960 memcpy(cp.hash256, data->hash256, sizeof(cp.hash256)); 3961 memcpy(cp.randomizer256, data->randomizer256, 3962 sizeof(cp.randomizer256)); 3963 3964 hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_EXT_DATA_REPLY, 3965 sizeof(cp), &cp); 3966 } else { 3967 struct hci_cp_remote_oob_data_reply cp; 3968 3969 bacpy(&cp.bdaddr, &ev->bdaddr); 3970 memcpy(cp.hash, data->hash192, sizeof(cp.hash)); 3971 memcpy(cp.randomizer, data->randomizer192, 3972 sizeof(cp.randomizer)); 3973 3974 hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_DATA_REPLY, 3975 sizeof(cp), &cp); 3976 } 3977 } else { 3978 struct hci_cp_remote_oob_data_neg_reply cp; 3979 3980 bacpy(&cp.bdaddr, &ev->bdaddr); 3981 hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_DATA_NEG_REPLY, 3982 sizeof(cp), &cp); 3983 } 3984 3985unlock: 3986 hci_dev_unlock(hdev); 3987} 3988 3989static void hci_phy_link_complete_evt(struct hci_dev *hdev, 3990 struct sk_buff *skb) 3991{ 3992 struct hci_ev_phy_link_complete *ev = (void *) skb->data; 3993 struct hci_conn *hcon, *bredr_hcon; 3994 3995 BT_DBG("%s handle 0x%2.2x status 0x%2.2x", hdev->name, ev->phy_handle, 3996 ev->status); 3997 3998 hci_dev_lock(hdev); 3999 4000 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle); 4001 if (!hcon) { 4002 hci_dev_unlock(hdev); 4003 return; 4004 } 4005 4006 if (ev->status) { 4007 hci_conn_del(hcon); 4008 hci_dev_unlock(hdev); 4009 return; 4010 } 4011 4012 bredr_hcon = hcon->amp_mgr->l2cap_conn->hcon; 4013 4014 hcon->state = BT_CONNECTED; 4015 bacpy(&hcon->dst, &bredr_hcon->dst); 4016 4017 hci_conn_hold(hcon); 4018 hcon->disc_timeout = HCI_DISCONN_TIMEOUT; 4019 hci_conn_drop(hcon); 4020 4021 hci_conn_add_sysfs(hcon); 4022 4023 amp_physical_cfm(bredr_hcon, hcon); 4024 4025 hci_dev_unlock(hdev); 4026} 4027 4028static void hci_loglink_complete_evt(struct hci_dev *hdev, struct sk_buff *skb) 4029{ 4030 struct hci_ev_logical_link_complete *ev = (void *) skb->data; 4031 struct hci_conn *hcon; 4032 struct hci_chan *hchan; 4033 struct amp_mgr *mgr; 4034 4035 BT_DBG("%s log_handle 0x%4.4x phy_handle 0x%2.2x status 0x%2.2x", 4036 hdev->name, le16_to_cpu(ev->handle), ev->phy_handle, 4037 ev->status); 4038 4039 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle); 4040 if (!hcon) 4041 return; 4042 4043 /* Create AMP hchan */ 4044 hchan = hci_chan_create(hcon); 4045 if (!hchan) 4046 return; 4047 4048 hchan->handle = le16_to_cpu(ev->handle); 4049 4050 BT_DBG("hcon %p mgr %p hchan %p", hcon, hcon->amp_mgr, hchan); 4051 4052 mgr = hcon->amp_mgr; 4053 if (mgr && mgr->bredr_chan) { 4054 struct l2cap_chan *bredr_chan = mgr->bredr_chan; 4055 4056 l2cap_chan_lock(bredr_chan); 4057 4058 bredr_chan->conn->mtu = hdev->block_mtu; 4059 l2cap_logical_cfm(bredr_chan, hchan, 0); 4060 hci_conn_hold(hcon); 4061 4062 l2cap_chan_unlock(bredr_chan); 4063 } 4064} 4065 4066static void hci_disconn_loglink_complete_evt(struct hci_dev *hdev, 4067 struct sk_buff *skb) 4068{ 4069 struct hci_ev_disconn_logical_link_complete *ev = (void *) skb->data; 4070 struct hci_chan *hchan; 4071 4072 BT_DBG("%s log handle 0x%4.4x status 0x%2.2x", hdev->name, 4073 le16_to_cpu(ev->handle), ev->status); 4074 4075 if (ev->status) 4076 return; 4077 4078 hci_dev_lock(hdev); 4079 4080 hchan = hci_chan_lookup_handle(hdev, le16_to_cpu(ev->handle)); 4081 if (!hchan) 4082 goto unlock; 4083 4084 amp_destroy_logical_link(hchan, ev->reason); 4085 4086unlock: 4087 hci_dev_unlock(hdev); 4088} 4089 4090static void hci_disconn_phylink_complete_evt(struct hci_dev *hdev, 4091 struct sk_buff *skb) 4092{ 4093 struct hci_ev_disconn_phy_link_complete *ev = (void *) skb->data; 4094 struct hci_conn *hcon; 4095 4096 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status); 4097 4098 if (ev->status) 4099 return; 4100 4101 hci_dev_lock(hdev); 4102 4103 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle); 4104 if (hcon) { 4105 hcon->state = BT_CLOSED; 4106 hci_conn_del(hcon); 4107 } 4108 4109 hci_dev_unlock(hdev); 4110} 4111 4112static void hci_le_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb) 4113{ 4114 struct hci_ev_le_conn_complete *ev = (void *) skb->data; 4115 struct hci_conn_params *params; 4116 struct hci_conn *conn; 4117 struct smp_irk *irk; 4118 u8 addr_type; 4119 4120 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status); 4121 4122 hci_dev_lock(hdev); 4123 4124 /* All controllers implicitly stop advertising in the event of a 4125 * connection, so ensure that the state bit is cleared. 4126 */ 4127 clear_bit(HCI_LE_ADV, &hdev->dev_flags); 4128 4129 conn = hci_conn_hash_lookup_state(hdev, LE_LINK, BT_CONNECT); 4130 if (!conn) { 4131 conn = hci_conn_add(hdev, LE_LINK, &ev->bdaddr, ev->role); 4132 if (!conn) { 4133 BT_ERR("No memory for new connection"); 4134 goto unlock; 4135 } 4136 4137 conn->dst_type = ev->bdaddr_type; 4138 4139 /* If we didn't have a hci_conn object previously 4140 * but we're in master role this must be something 4141 * initiated using a white list. Since white list based 4142 * connections are not "first class citizens" we don't 4143 * have full tracking of them. Therefore, we go ahead 4144 * with a "best effort" approach of determining the 4145 * initiator address based on the HCI_PRIVACY flag. 4146 */ 4147 if (conn->out) { 4148 conn->resp_addr_type = ev->bdaddr_type; 4149 bacpy(&conn->resp_addr, &ev->bdaddr); 4150 if (test_bit(HCI_PRIVACY, &hdev->dev_flags)) { 4151 conn->init_addr_type = ADDR_LE_DEV_RANDOM; 4152 bacpy(&conn->init_addr, &hdev->rpa); 4153 } else { 4154 hci_copy_identity_address(hdev, 4155 &conn->init_addr, 4156 &conn->init_addr_type); 4157 } 4158 } 4159 } else { 4160 cancel_delayed_work(&conn->le_conn_timeout); 4161 } 4162 4163 if (!conn->out) { 4164 /* Set the responder (our side) address type based on 4165 * the advertising address type. 4166 */ 4167 conn->resp_addr_type = hdev->adv_addr_type; 4168 if (hdev->adv_addr_type == ADDR_LE_DEV_RANDOM) 4169 bacpy(&conn->resp_addr, &hdev->random_addr); 4170 else 4171 bacpy(&conn->resp_addr, &hdev->bdaddr); 4172 4173 conn->init_addr_type = ev->bdaddr_type; 4174 bacpy(&conn->init_addr, &ev->bdaddr); 4175 4176 /* For incoming connections, set the default minimum 4177 * and maximum connection interval. They will be used 4178 * to check if the parameters are in range and if not 4179 * trigger the connection update procedure. 4180 */ 4181 conn->le_conn_min_interval = hdev->le_conn_min_interval; 4182 conn->le_conn_max_interval = hdev->le_conn_max_interval; 4183 } 4184 4185 /* Lookup the identity address from the stored connection 4186 * address and address type. 4187 * 4188 * When establishing connections to an identity address, the 4189 * connection procedure will store the resolvable random 4190 * address first. Now if it can be converted back into the 4191 * identity address, start using the identity address from 4192 * now on. 4193 */ 4194 irk = hci_get_irk(hdev, &conn->dst, conn->dst_type); 4195 if (irk) { 4196 bacpy(&conn->dst, &irk->bdaddr); 4197 conn->dst_type = irk->addr_type; 4198 } 4199 4200 if (ev->status) { 4201 hci_le_conn_failed(conn, ev->status); 4202 goto unlock; 4203 } 4204 4205 if (conn->dst_type == ADDR_LE_DEV_PUBLIC) 4206 addr_type = BDADDR_LE_PUBLIC; 4207 else 4208 addr_type = BDADDR_LE_RANDOM; 4209 4210 /* Drop the connection if the device is blocked */ 4211 if (hci_bdaddr_list_lookup(&hdev->blacklist, &conn->dst, addr_type)) { 4212 hci_conn_drop(conn); 4213 goto unlock; 4214 } 4215 4216 if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags)) 4217 mgmt_device_connected(hdev, &conn->dst, conn->type, 4218 conn->dst_type, 0, NULL, 0, NULL); 4219 4220 conn->sec_level = BT_SECURITY_LOW; 4221 conn->handle = __le16_to_cpu(ev->handle); 4222 conn->state = BT_CONNECTED; 4223 4224 conn->le_conn_interval = le16_to_cpu(ev->interval); 4225 conn->le_conn_latency = le16_to_cpu(ev->latency); 4226 conn->le_supv_timeout = le16_to_cpu(ev->supervision_timeout); 4227 4228 hci_conn_add_sysfs(conn); 4229 4230 hci_proto_connect_cfm(conn, ev->status); 4231 4232 params = hci_pend_le_action_lookup(&hdev->pend_le_conns, &conn->dst, 4233 conn->dst_type); 4234 if (params) { 4235 list_del_init(¶ms->action); 4236 if (params->conn) { 4237 hci_conn_drop(params->conn); 4238 hci_conn_put(params->conn); 4239 params->conn = NULL; 4240 } 4241 } 4242 4243unlock: 4244 hci_update_background_scan(hdev); 4245 hci_dev_unlock(hdev); 4246} 4247 4248static void hci_le_conn_update_complete_evt(struct hci_dev *hdev, 4249 struct sk_buff *skb) 4250{ 4251 struct hci_ev_le_conn_update_complete *ev = (void *) skb->data; 4252 struct hci_conn *conn; 4253 4254 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status); 4255 4256 if (ev->status) 4257 return; 4258 4259 hci_dev_lock(hdev); 4260 4261 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle)); 4262 if (conn) { 4263 conn->le_conn_interval = le16_to_cpu(ev->interval); 4264 conn->le_conn_latency = le16_to_cpu(ev->latency); 4265 conn->le_supv_timeout = le16_to_cpu(ev->supervision_timeout); 4266 } 4267 4268 hci_dev_unlock(hdev); 4269} 4270 4271/* This function requires the caller holds hdev->lock */ 4272static void check_pending_le_conn(struct hci_dev *hdev, bdaddr_t *addr, 4273 u8 addr_type, u8 adv_type) 4274{ 4275 struct hci_conn *conn; 4276 struct hci_conn_params *params; 4277 4278 /* If the event is not connectable don't proceed further */ 4279 if (adv_type != LE_ADV_IND && adv_type != LE_ADV_DIRECT_IND) 4280 return; 4281 4282 /* Ignore if the device is blocked */ 4283 if (hci_bdaddr_list_lookup(&hdev->blacklist, addr, addr_type)) 4284 return; 4285 4286 /* Most controller will fail if we try to create new connections 4287 * while we have an existing one in slave role. 4288 */ 4289 if (hdev->conn_hash.le_num_slave > 0) 4290 return; 4291 4292 /* If we're not connectable only connect devices that we have in 4293 * our pend_le_conns list. 4294 */ 4295 params = hci_pend_le_action_lookup(&hdev->pend_le_conns, 4296 addr, addr_type); 4297 if (!params) 4298 return; 4299 4300 switch (params->auto_connect) { 4301 case HCI_AUTO_CONN_DIRECT: 4302 /* Only devices advertising with ADV_DIRECT_IND are 4303 * triggering a connection attempt. This is allowing 4304 * incoming connections from slave devices. 4305 */ 4306 if (adv_type != LE_ADV_DIRECT_IND) 4307 return; 4308 break; 4309 case HCI_AUTO_CONN_ALWAYS: 4310 /* Devices advertising with ADV_IND or ADV_DIRECT_IND 4311 * are triggering a connection attempt. This means 4312 * that incoming connectioms from slave device are 4313 * accepted and also outgoing connections to slave 4314 * devices are established when found. 4315 */ 4316 break; 4317 default: 4318 return; 4319 } 4320 4321 conn = hci_connect_le(hdev, addr, addr_type, BT_SECURITY_LOW, 4322 HCI_LE_AUTOCONN_TIMEOUT, HCI_ROLE_MASTER); 4323 if (!IS_ERR(conn)) { 4324 /* Store the pointer since we don't really have any 4325 * other owner of the object besides the params that 4326 * triggered it. This way we can abort the connection if 4327 * the parameters get removed and keep the reference 4328 * count consistent once the connection is established. 4329 */ 4330 params->conn = hci_conn_get(conn); 4331 return; 4332 } 4333 4334 switch (PTR_ERR(conn)) { 4335 case -EBUSY: 4336 /* If hci_connect() returns -EBUSY it means there is already 4337 * an LE connection attempt going on. Since controllers don't 4338 * support more than one connection attempt at the time, we 4339 * don't consider this an error case. 4340 */ 4341 break; 4342 default: 4343 BT_DBG("Failed to connect: err %ld", PTR_ERR(conn)); 4344 } 4345} 4346 4347static void process_adv_report(struct hci_dev *hdev, u8 type, bdaddr_t *bdaddr, 4348 u8 bdaddr_type, s8 rssi, u8 *data, u8 len) 4349{ 4350 struct discovery_state *d = &hdev->discovery; 4351 struct smp_irk *irk; 4352 bool match; 4353 u32 flags; 4354 4355 /* Check if we need to convert to identity address */ 4356 irk = hci_get_irk(hdev, bdaddr, bdaddr_type); 4357 if (irk) { 4358 bdaddr = &irk->bdaddr; 4359 bdaddr_type = irk->addr_type; 4360 } 4361 4362 /* Check if we have been requested to connect to this device */ 4363 check_pending_le_conn(hdev, bdaddr, bdaddr_type, type); 4364 4365 /* Passive scanning shouldn't trigger any device found events, 4366 * except for devices marked as CONN_REPORT for which we do send 4367 * device found events. 4368 */ 4369 if (hdev->le_scan_type == LE_SCAN_PASSIVE) { 4370 if (type == LE_ADV_DIRECT_IND) 4371 return; 4372 4373 if (!hci_pend_le_action_lookup(&hdev->pend_le_reports, 4374 bdaddr, bdaddr_type)) 4375 return; 4376 4377 if (type == LE_ADV_NONCONN_IND || type == LE_ADV_SCAN_IND) 4378 flags = MGMT_DEV_FOUND_NOT_CONNECTABLE; 4379 else 4380 flags = 0; 4381 mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL, 4382 rssi, flags, data, len, NULL, 0); 4383 return; 4384 } 4385 4386 /* When receiving non-connectable or scannable undirected 4387 * advertising reports, this means that the remote device is 4388 * not connectable and then clearly indicate this in the 4389 * device found event. 4390 * 4391 * When receiving a scan response, then there is no way to 4392 * know if the remote device is connectable or not. However 4393 * since scan responses are merged with a previously seen 4394 * advertising report, the flags field from that report 4395 * will be used. 4396 * 4397 * In the really unlikely case that a controller get confused 4398 * and just sends a scan response event, then it is marked as 4399 * not connectable as well. 4400 */ 4401 if (type == LE_ADV_NONCONN_IND || type == LE_ADV_SCAN_IND || 4402 type == LE_ADV_SCAN_RSP) 4403 flags = MGMT_DEV_FOUND_NOT_CONNECTABLE; 4404 else 4405 flags = 0; 4406 4407 /* If there's nothing pending either store the data from this 4408 * event or send an immediate device found event if the data 4409 * should not be stored for later. 4410 */ 4411 if (!has_pending_adv_report(hdev)) { 4412 /* If the report will trigger a SCAN_REQ store it for 4413 * later merging. 4414 */ 4415 if (type == LE_ADV_IND || type == LE_ADV_SCAN_IND) { 4416 store_pending_adv_report(hdev, bdaddr, bdaddr_type, 4417 rssi, flags, data, len); 4418 return; 4419 } 4420 4421 mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL, 4422 rssi, flags, data, len, NULL, 0); 4423 return; 4424 } 4425 4426 /* Check if the pending report is for the same device as the new one */ 4427 match = (!bacmp(bdaddr, &d->last_adv_addr) && 4428 bdaddr_type == d->last_adv_addr_type); 4429 4430 /* If the pending data doesn't match this report or this isn't a 4431 * scan response (e.g. we got a duplicate ADV_IND) then force 4432 * sending of the pending data. 4433 */ 4434 if (type != LE_ADV_SCAN_RSP || !match) { 4435 /* Send out whatever is in the cache, but skip duplicates */ 4436 if (!match) 4437 mgmt_device_found(hdev, &d->last_adv_addr, LE_LINK, 4438 d->last_adv_addr_type, NULL, 4439 d->last_adv_rssi, d->last_adv_flags, 4440 d->last_adv_data, 4441 d->last_adv_data_len, NULL, 0); 4442 4443 /* If the new report will trigger a SCAN_REQ store it for 4444 * later merging. 4445 */ 4446 if (type == LE_ADV_IND || type == LE_ADV_SCAN_IND) { 4447 store_pending_adv_report(hdev, bdaddr, bdaddr_type, 4448 rssi, flags, data, len); 4449 return; 4450 } 4451 4452 /* The advertising reports cannot be merged, so clear 4453 * the pending report and send out a device found event. 4454 */ 4455 clear_pending_adv_report(hdev); 4456 mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL, 4457 rssi, flags, data, len, NULL, 0); 4458 return; 4459 } 4460 4461 /* If we get here we've got a pending ADV_IND or ADV_SCAN_IND and 4462 * the new event is a SCAN_RSP. We can therefore proceed with 4463 * sending a merged device found event. 4464 */ 4465 mgmt_device_found(hdev, &d->last_adv_addr, LE_LINK, 4466 d->last_adv_addr_type, NULL, rssi, d->last_adv_flags, 4467 d->last_adv_data, d->last_adv_data_len, data, len); 4468 clear_pending_adv_report(hdev); 4469} 4470 4471static void hci_le_adv_report_evt(struct hci_dev *hdev, struct sk_buff *skb) 4472{ 4473 u8 num_reports = skb->data[0]; 4474 void *ptr = &skb->data[1]; 4475 4476 hci_dev_lock(hdev); 4477 4478 while (num_reports--) { 4479 struct hci_ev_le_advertising_info *ev = ptr; 4480 s8 rssi; 4481 4482 rssi = ev->data[ev->length]; 4483 process_adv_report(hdev, ev->evt_type, &ev->bdaddr, 4484 ev->bdaddr_type, rssi, ev->data, ev->length); 4485 4486 ptr += sizeof(*ev) + ev->length + 1; 4487 } 4488 4489 hci_dev_unlock(hdev); 4490} 4491 4492static void hci_le_ltk_request_evt(struct hci_dev *hdev, struct sk_buff *skb) 4493{ 4494 struct hci_ev_le_ltk_req *ev = (void *) skb->data; 4495 struct hci_cp_le_ltk_reply cp; 4496 struct hci_cp_le_ltk_neg_reply neg; 4497 struct hci_conn *conn; 4498 struct smp_ltk *ltk; 4499 4500 BT_DBG("%s handle 0x%4.4x", hdev->name, __le16_to_cpu(ev->handle)); 4501 4502 hci_dev_lock(hdev); 4503 4504 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle)); 4505 if (conn == NULL) 4506 goto not_found; 4507 4508 ltk = hci_find_ltk(hdev, ev->ediv, ev->rand, conn->role); 4509 if (ltk == NULL) 4510 goto not_found; 4511 4512 memcpy(cp.ltk, ltk->val, sizeof(ltk->val)); 4513 cp.handle = cpu_to_le16(conn->handle); 4514 4515 conn->pending_sec_level = smp_ltk_sec_level(ltk); 4516 4517 conn->enc_key_size = ltk->enc_size; 4518 4519 hci_send_cmd(hdev, HCI_OP_LE_LTK_REPLY, sizeof(cp), &cp); 4520 4521 /* Ref. Bluetooth Core SPEC pages 1975 and 2004. STK is a 4522 * temporary key used to encrypt a connection following 4523 * pairing. It is used during the Encrypted Session Setup to 4524 * distribute the keys. Later, security can be re-established 4525 * using a distributed LTK. 4526 */ 4527 if (ltk->type == SMP_STK) { 4528 set_bit(HCI_CONN_STK_ENCRYPT, &conn->flags); 4529 list_del(<k->list); 4530 kfree(ltk); 4531 } else { 4532 clear_bit(HCI_CONN_STK_ENCRYPT, &conn->flags); 4533 } 4534 4535 hci_dev_unlock(hdev); 4536 4537 return; 4538 4539not_found: 4540 neg.handle = ev->handle; 4541 hci_send_cmd(hdev, HCI_OP_LE_LTK_NEG_REPLY, sizeof(neg), &neg); 4542 hci_dev_unlock(hdev); 4543} 4544 4545static void send_conn_param_neg_reply(struct hci_dev *hdev, u16 handle, 4546 u8 reason) 4547{ 4548 struct hci_cp_le_conn_param_req_neg_reply cp; 4549 4550 cp.handle = cpu_to_le16(handle); 4551 cp.reason = reason; 4552 4553 hci_send_cmd(hdev, HCI_OP_LE_CONN_PARAM_REQ_NEG_REPLY, sizeof(cp), 4554 &cp); 4555} 4556 4557static void hci_le_remote_conn_param_req_evt(struct hci_dev *hdev, 4558 struct sk_buff *skb) 4559{ 4560 struct hci_ev_le_remote_conn_param_req *ev = (void *) skb->data; 4561 struct hci_cp_le_conn_param_req_reply cp; 4562 struct hci_conn *hcon; 4563 u16 handle, min, max, latency, timeout; 4564 4565 handle = le16_to_cpu(ev->handle); 4566 min = le16_to_cpu(ev->interval_min); 4567 max = le16_to_cpu(ev->interval_max); 4568 latency = le16_to_cpu(ev->latency); 4569 timeout = le16_to_cpu(ev->timeout); 4570 4571 hcon = hci_conn_hash_lookup_handle(hdev, handle); 4572 if (!hcon || hcon->state != BT_CONNECTED) 4573 return send_conn_param_neg_reply(hdev, handle, 4574 HCI_ERROR_UNKNOWN_CONN_ID); 4575 4576 if (hci_check_conn_params(min, max, latency, timeout)) 4577 return send_conn_param_neg_reply(hdev, handle, 4578 HCI_ERROR_INVALID_LL_PARAMS); 4579 4580 if (hcon->role == HCI_ROLE_MASTER) { 4581 struct hci_conn_params *params; 4582 u8 store_hint; 4583 4584 hci_dev_lock(hdev); 4585 4586 params = hci_conn_params_lookup(hdev, &hcon->dst, 4587 hcon->dst_type); 4588 if (params) { 4589 params->conn_min_interval = min; 4590 params->conn_max_interval = max; 4591 params->conn_latency = latency; 4592 params->supervision_timeout = timeout; 4593 store_hint = 0x01; 4594 } else{ 4595 store_hint = 0x00; 4596 } 4597 4598 hci_dev_unlock(hdev); 4599 4600 mgmt_new_conn_param(hdev, &hcon->dst, hcon->dst_type, 4601 store_hint, min, max, latency, timeout); 4602 } 4603 4604 cp.handle = ev->handle; 4605 cp.interval_min = ev->interval_min; 4606 cp.interval_max = ev->interval_max; 4607 cp.latency = ev->latency; 4608 cp.timeout = ev->timeout; 4609 cp.min_ce_len = 0; 4610 cp.max_ce_len = 0; 4611 4612 hci_send_cmd(hdev, HCI_OP_LE_CONN_PARAM_REQ_REPLY, sizeof(cp), &cp); 4613} 4614 4615static void hci_le_meta_evt(struct hci_dev *hdev, struct sk_buff *skb) 4616{ 4617 struct hci_ev_le_meta *le_ev = (void *) skb->data; 4618 4619 skb_pull(skb, sizeof(*le_ev)); 4620 4621 switch (le_ev->subevent) { 4622 case HCI_EV_LE_CONN_COMPLETE: 4623 hci_le_conn_complete_evt(hdev, skb); 4624 break; 4625 4626 case HCI_EV_LE_CONN_UPDATE_COMPLETE: 4627 hci_le_conn_update_complete_evt(hdev, skb); 4628 break; 4629 4630 case HCI_EV_LE_ADVERTISING_REPORT: 4631 hci_le_adv_report_evt(hdev, skb); 4632 break; 4633 4634 case HCI_EV_LE_LTK_REQ: 4635 hci_le_ltk_request_evt(hdev, skb); 4636 break; 4637 4638 case HCI_EV_LE_REMOTE_CONN_PARAM_REQ: 4639 hci_le_remote_conn_param_req_evt(hdev, skb); 4640 break; 4641 4642 default: 4643 break; 4644 } 4645} 4646 4647static void hci_chan_selected_evt(struct hci_dev *hdev, struct sk_buff *skb) 4648{ 4649 struct hci_ev_channel_selected *ev = (void *) skb->data; 4650 struct hci_conn *hcon; 4651 4652 BT_DBG("%s handle 0x%2.2x", hdev->name, ev->phy_handle); 4653 4654 skb_pull(skb, sizeof(*ev)); 4655 4656 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle); 4657 if (!hcon) 4658 return; 4659 4660 amp_read_loc_assoc_final_data(hdev, hcon); 4661} 4662 4663void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb) 4664{ 4665 struct hci_event_hdr *hdr = (void *) skb->data; 4666 __u8 event = hdr->evt; 4667 4668 hci_dev_lock(hdev); 4669 4670 /* Received events are (currently) only needed when a request is 4671 * ongoing so avoid unnecessary memory allocation. 4672 */ 4673 if (hci_req_pending(hdev)) { 4674 kfree_skb(hdev->recv_evt); 4675 hdev->recv_evt = skb_clone(skb, GFP_KERNEL); 4676 } 4677 4678 hci_dev_unlock(hdev); 4679 4680 skb_pull(skb, HCI_EVENT_HDR_SIZE); 4681 4682 if (hdev->sent_cmd && bt_cb(hdev->sent_cmd)->req.event == event) { 4683 struct hci_command_hdr *cmd_hdr = (void *) hdev->sent_cmd->data; 4684 u16 opcode = __le16_to_cpu(cmd_hdr->opcode); 4685 4686 hci_req_cmd_complete(hdev, opcode, 0); 4687 } 4688 4689 switch (event) { 4690 case HCI_EV_INQUIRY_COMPLETE: 4691 hci_inquiry_complete_evt(hdev, skb); 4692 break; 4693 4694 case HCI_EV_INQUIRY_RESULT: 4695 hci_inquiry_result_evt(hdev, skb); 4696 break; 4697 4698 case HCI_EV_CONN_COMPLETE: 4699 hci_conn_complete_evt(hdev, skb); 4700 break; 4701 4702 case HCI_EV_CONN_REQUEST: 4703 hci_conn_request_evt(hdev, skb); 4704 break; 4705 4706 case HCI_EV_DISCONN_COMPLETE: 4707 hci_disconn_complete_evt(hdev, skb); 4708 break; 4709 4710 case HCI_EV_AUTH_COMPLETE: 4711 hci_auth_complete_evt(hdev, skb); 4712 break; 4713 4714 case HCI_EV_REMOTE_NAME: 4715 hci_remote_name_evt(hdev, skb); 4716 break; 4717 4718 case HCI_EV_ENCRYPT_CHANGE: 4719 hci_encrypt_change_evt(hdev, skb); 4720 break; 4721 4722 case HCI_EV_CHANGE_LINK_KEY_COMPLETE: 4723 hci_change_link_key_complete_evt(hdev, skb); 4724 break; 4725 4726 case HCI_EV_REMOTE_FEATURES: 4727 hci_remote_features_evt(hdev, skb); 4728 break; 4729 4730 case HCI_EV_CMD_COMPLETE: 4731 hci_cmd_complete_evt(hdev, skb); 4732 break; 4733 4734 case HCI_EV_CMD_STATUS: 4735 hci_cmd_status_evt(hdev, skb); 4736 break; 4737 4738 case HCI_EV_ROLE_CHANGE: 4739 hci_role_change_evt(hdev, skb); 4740 break; 4741 4742 case HCI_EV_NUM_COMP_PKTS: 4743 hci_num_comp_pkts_evt(hdev, skb); 4744 break; 4745 4746 case HCI_EV_MODE_CHANGE: 4747 hci_mode_change_evt(hdev, skb); 4748 break; 4749 4750 case HCI_EV_PIN_CODE_REQ: 4751 hci_pin_code_request_evt(hdev, skb); 4752 break; 4753 4754 case HCI_EV_LINK_KEY_REQ: 4755 hci_link_key_request_evt(hdev, skb); 4756 break; 4757 4758 case HCI_EV_LINK_KEY_NOTIFY: 4759 hci_link_key_notify_evt(hdev, skb); 4760 break; 4761 4762 case HCI_EV_CLOCK_OFFSET: 4763 hci_clock_offset_evt(hdev, skb); 4764 break; 4765 4766 case HCI_EV_PKT_TYPE_CHANGE: 4767 hci_pkt_type_change_evt(hdev, skb); 4768 break; 4769 4770 case HCI_EV_PSCAN_REP_MODE: 4771 hci_pscan_rep_mode_evt(hdev, skb); 4772 break; 4773 4774 case HCI_EV_INQUIRY_RESULT_WITH_RSSI: 4775 hci_inquiry_result_with_rssi_evt(hdev, skb); 4776 break; 4777 4778 case HCI_EV_REMOTE_EXT_FEATURES: 4779 hci_remote_ext_features_evt(hdev, skb); 4780 break; 4781 4782 case HCI_EV_SYNC_CONN_COMPLETE: 4783 hci_sync_conn_complete_evt(hdev, skb); 4784 break; 4785 4786 case HCI_EV_EXTENDED_INQUIRY_RESULT: 4787 hci_extended_inquiry_result_evt(hdev, skb); 4788 break; 4789 4790 case HCI_EV_KEY_REFRESH_COMPLETE: 4791 hci_key_refresh_complete_evt(hdev, skb); 4792 break; 4793 4794 case HCI_EV_IO_CAPA_REQUEST: 4795 hci_io_capa_request_evt(hdev, skb); 4796 break; 4797 4798 case HCI_EV_IO_CAPA_REPLY: 4799 hci_io_capa_reply_evt(hdev, skb); 4800 break; 4801 4802 case HCI_EV_USER_CONFIRM_REQUEST: 4803 hci_user_confirm_request_evt(hdev, skb); 4804 break; 4805 4806 case HCI_EV_USER_PASSKEY_REQUEST: 4807 hci_user_passkey_request_evt(hdev, skb); 4808 break; 4809 4810 case HCI_EV_USER_PASSKEY_NOTIFY: 4811 hci_user_passkey_notify_evt(hdev, skb); 4812 break; 4813 4814 case HCI_EV_KEYPRESS_NOTIFY: 4815 hci_keypress_notify_evt(hdev, skb); 4816 break; 4817 4818 case HCI_EV_SIMPLE_PAIR_COMPLETE: 4819 hci_simple_pair_complete_evt(hdev, skb); 4820 break; 4821 4822 case HCI_EV_REMOTE_HOST_FEATURES: 4823 hci_remote_host_features_evt(hdev, skb); 4824 break; 4825 4826 case HCI_EV_LE_META: 4827 hci_le_meta_evt(hdev, skb); 4828 break; 4829 4830 case HCI_EV_CHANNEL_SELECTED: 4831 hci_chan_selected_evt(hdev, skb); 4832 break; 4833 4834 case HCI_EV_REMOTE_OOB_DATA_REQUEST: 4835 hci_remote_oob_data_request_evt(hdev, skb); 4836 break; 4837 4838 case HCI_EV_PHY_LINK_COMPLETE: 4839 hci_phy_link_complete_evt(hdev, skb); 4840 break; 4841 4842 case HCI_EV_LOGICAL_LINK_COMPLETE: 4843 hci_loglink_complete_evt(hdev, skb); 4844 break; 4845 4846 case HCI_EV_DISCONN_LOGICAL_LINK_COMPLETE: 4847 hci_disconn_loglink_complete_evt(hdev, skb); 4848 break; 4849 4850 case HCI_EV_DISCONN_PHY_LINK_COMPLETE: 4851 hci_disconn_phylink_complete_evt(hdev, skb); 4852 break; 4853 4854 case HCI_EV_NUM_COMP_BLOCKS: 4855 hci_num_comp_blocks_evt(hdev, skb); 4856 break; 4857 4858 default: 4859 BT_DBG("%s event 0x%2.2x", hdev->name, event); 4860 break; 4861 } 4862 4863 kfree_skb(skb); 4864 hdev->stat.evt_rx++; 4865} 4866