1 /* 2 BlueZ - Bluetooth protocol stack for Linux 3 4 Copyright (C) 2010 Nokia Corporation 5 Copyright (C) 2011-2012 Intel Corporation 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 Management interface */ 26 27 #include <linux/module.h> 28 #include <asm/unaligned.h> 29 30 #include <net/bluetooth/bluetooth.h> 31 #include <net/bluetooth/hci_core.h> 32 #include <net/bluetooth/mgmt.h> 33 #include <net/bluetooth/smp.h> 34 35 bool enable_hs; 36 37 #define MGMT_VERSION 1 38 #define MGMT_REVISION 2 39 40 static const u16 mgmt_commands[] = { 41 MGMT_OP_READ_INDEX_LIST, 42 MGMT_OP_READ_INFO, 43 MGMT_OP_SET_POWERED, 44 MGMT_OP_SET_DISCOVERABLE, 45 MGMT_OP_SET_CONNECTABLE, 46 MGMT_OP_SET_FAST_CONNECTABLE, 47 MGMT_OP_SET_PAIRABLE, 48 MGMT_OP_SET_LINK_SECURITY, 49 MGMT_OP_SET_SSP, 50 MGMT_OP_SET_HS, 51 MGMT_OP_SET_LE, 52 MGMT_OP_SET_DEV_CLASS, 53 MGMT_OP_SET_LOCAL_NAME, 54 MGMT_OP_ADD_UUID, 55 MGMT_OP_REMOVE_UUID, 56 MGMT_OP_LOAD_LINK_KEYS, 57 MGMT_OP_LOAD_LONG_TERM_KEYS, 58 MGMT_OP_DISCONNECT, 59 MGMT_OP_GET_CONNECTIONS, 60 MGMT_OP_PIN_CODE_REPLY, 61 MGMT_OP_PIN_CODE_NEG_REPLY, 62 MGMT_OP_SET_IO_CAPABILITY, 63 MGMT_OP_PAIR_DEVICE, 64 MGMT_OP_CANCEL_PAIR_DEVICE, 65 MGMT_OP_UNPAIR_DEVICE, 66 MGMT_OP_USER_CONFIRM_REPLY, 67 MGMT_OP_USER_CONFIRM_NEG_REPLY, 68 MGMT_OP_USER_PASSKEY_REPLY, 69 MGMT_OP_USER_PASSKEY_NEG_REPLY, 70 MGMT_OP_READ_LOCAL_OOB_DATA, 71 MGMT_OP_ADD_REMOTE_OOB_DATA, 72 MGMT_OP_REMOVE_REMOTE_OOB_DATA, 73 MGMT_OP_START_DISCOVERY, 74 MGMT_OP_STOP_DISCOVERY, 75 MGMT_OP_CONFIRM_NAME, 76 MGMT_OP_BLOCK_DEVICE, 77 MGMT_OP_UNBLOCK_DEVICE, 78 MGMT_OP_SET_DEVICE_ID, 79 }; 80 81 static const u16 mgmt_events[] = { 82 MGMT_EV_CONTROLLER_ERROR, 83 MGMT_EV_INDEX_ADDED, 84 MGMT_EV_INDEX_REMOVED, 85 MGMT_EV_NEW_SETTINGS, 86 MGMT_EV_CLASS_OF_DEV_CHANGED, 87 MGMT_EV_LOCAL_NAME_CHANGED, 88 MGMT_EV_NEW_LINK_KEY, 89 MGMT_EV_NEW_LONG_TERM_KEY, 90 MGMT_EV_DEVICE_CONNECTED, 91 MGMT_EV_DEVICE_DISCONNECTED, 92 MGMT_EV_CONNECT_FAILED, 93 MGMT_EV_PIN_CODE_REQUEST, 94 MGMT_EV_USER_CONFIRM_REQUEST, 95 MGMT_EV_USER_PASSKEY_REQUEST, 96 MGMT_EV_AUTH_FAILED, 97 MGMT_EV_DEVICE_FOUND, 98 MGMT_EV_DISCOVERING, 99 MGMT_EV_DEVICE_BLOCKED, 100 MGMT_EV_DEVICE_UNBLOCKED, 101 MGMT_EV_DEVICE_UNPAIRED, 102 MGMT_EV_PASSKEY_NOTIFY, 103 }; 104 105 /* 106 * These LE scan and inquiry parameters were chosen according to LE General 107 * Discovery Procedure specification. 108 */ 109 #define LE_SCAN_TYPE 0x01 110 #define LE_SCAN_WIN 0x12 111 #define LE_SCAN_INT 0x12 112 #define LE_SCAN_TIMEOUT_LE_ONLY 10240 /* TGAP(gen_disc_scan_min) */ 113 #define LE_SCAN_TIMEOUT_BREDR_LE 5120 /* TGAP(100)/2 */ 114 115 #define INQUIRY_LEN_BREDR 0x08 /* TGAP(100) */ 116 #define INQUIRY_LEN_BREDR_LE 0x04 /* TGAP(100)/2 */ 117 118 #define CACHE_TIMEOUT msecs_to_jiffies(2 * 1000) 119 120 #define hdev_is_powered(hdev) (test_bit(HCI_UP, &hdev->flags) && \ 121 !test_bit(HCI_AUTO_OFF, &hdev->dev_flags)) 122 123 struct pending_cmd { 124 struct list_head list; 125 u16 opcode; 126 int index; 127 void *param; 128 struct sock *sk; 129 void *user_data; 130 }; 131 132 /* HCI to MGMT error code conversion table */ 133 static u8 mgmt_status_table[] = { 134 MGMT_STATUS_SUCCESS, 135 MGMT_STATUS_UNKNOWN_COMMAND, /* Unknown Command */ 136 MGMT_STATUS_NOT_CONNECTED, /* No Connection */ 137 MGMT_STATUS_FAILED, /* Hardware Failure */ 138 MGMT_STATUS_CONNECT_FAILED, /* Page Timeout */ 139 MGMT_STATUS_AUTH_FAILED, /* Authentication Failed */ 140 MGMT_STATUS_NOT_PAIRED, /* PIN or Key Missing */ 141 MGMT_STATUS_NO_RESOURCES, /* Memory Full */ 142 MGMT_STATUS_TIMEOUT, /* Connection Timeout */ 143 MGMT_STATUS_NO_RESOURCES, /* Max Number of Connections */ 144 MGMT_STATUS_NO_RESOURCES, /* Max Number of SCO Connections */ 145 MGMT_STATUS_ALREADY_CONNECTED, /* ACL Connection Exists */ 146 MGMT_STATUS_BUSY, /* Command Disallowed */ 147 MGMT_STATUS_NO_RESOURCES, /* Rejected Limited Resources */ 148 MGMT_STATUS_REJECTED, /* Rejected Security */ 149 MGMT_STATUS_REJECTED, /* Rejected Personal */ 150 MGMT_STATUS_TIMEOUT, /* Host Timeout */ 151 MGMT_STATUS_NOT_SUPPORTED, /* Unsupported Feature */ 152 MGMT_STATUS_INVALID_PARAMS, /* Invalid Parameters */ 153 MGMT_STATUS_DISCONNECTED, /* OE User Ended Connection */ 154 MGMT_STATUS_NO_RESOURCES, /* OE Low Resources */ 155 MGMT_STATUS_DISCONNECTED, /* OE Power Off */ 156 MGMT_STATUS_DISCONNECTED, /* Connection Terminated */ 157 MGMT_STATUS_BUSY, /* Repeated Attempts */ 158 MGMT_STATUS_REJECTED, /* Pairing Not Allowed */ 159 MGMT_STATUS_FAILED, /* Unknown LMP PDU */ 160 MGMT_STATUS_NOT_SUPPORTED, /* Unsupported Remote Feature */ 161 MGMT_STATUS_REJECTED, /* SCO Offset Rejected */ 162 MGMT_STATUS_REJECTED, /* SCO Interval Rejected */ 163 MGMT_STATUS_REJECTED, /* Air Mode Rejected */ 164 MGMT_STATUS_INVALID_PARAMS, /* Invalid LMP Parameters */ 165 MGMT_STATUS_FAILED, /* Unspecified Error */ 166 MGMT_STATUS_NOT_SUPPORTED, /* Unsupported LMP Parameter Value */ 167 MGMT_STATUS_FAILED, /* Role Change Not Allowed */ 168 MGMT_STATUS_TIMEOUT, /* LMP Response Timeout */ 169 MGMT_STATUS_FAILED, /* LMP Error Transaction Collision */ 170 MGMT_STATUS_FAILED, /* LMP PDU Not Allowed */ 171 MGMT_STATUS_REJECTED, /* Encryption Mode Not Accepted */ 172 MGMT_STATUS_FAILED, /* Unit Link Key Used */ 173 MGMT_STATUS_NOT_SUPPORTED, /* QoS Not Supported */ 174 MGMT_STATUS_TIMEOUT, /* Instant Passed */ 175 MGMT_STATUS_NOT_SUPPORTED, /* Pairing Not Supported */ 176 MGMT_STATUS_FAILED, /* Transaction Collision */ 177 MGMT_STATUS_INVALID_PARAMS, /* Unacceptable Parameter */ 178 MGMT_STATUS_REJECTED, /* QoS Rejected */ 179 MGMT_STATUS_NOT_SUPPORTED, /* Classification Not Supported */ 180 MGMT_STATUS_REJECTED, /* Insufficient Security */ 181 MGMT_STATUS_INVALID_PARAMS, /* Parameter Out Of Range */ 182 MGMT_STATUS_BUSY, /* Role Switch Pending */ 183 MGMT_STATUS_FAILED, /* Slot Violation */ 184 MGMT_STATUS_FAILED, /* Role Switch Failed */ 185 MGMT_STATUS_INVALID_PARAMS, /* EIR Too Large */ 186 MGMT_STATUS_NOT_SUPPORTED, /* Simple Pairing Not Supported */ 187 MGMT_STATUS_BUSY, /* Host Busy Pairing */ 188 MGMT_STATUS_REJECTED, /* Rejected, No Suitable Channel */ 189 MGMT_STATUS_BUSY, /* Controller Busy */ 190 MGMT_STATUS_INVALID_PARAMS, /* Unsuitable Connection Interval */ 191 MGMT_STATUS_TIMEOUT, /* Directed Advertising Timeout */ 192 MGMT_STATUS_AUTH_FAILED, /* Terminated Due to MIC Failure */ 193 MGMT_STATUS_CONNECT_FAILED, /* Connection Establishment Failed */ 194 MGMT_STATUS_CONNECT_FAILED, /* MAC Connection Failed */ 195 }; 196 197 bool mgmt_valid_hdev(struct hci_dev *hdev) 198 { 199 return hdev->dev_type == HCI_BREDR; 200 } 201 202 static u8 mgmt_status(u8 hci_status) 203 { 204 if (hci_status < ARRAY_SIZE(mgmt_status_table)) 205 return mgmt_status_table[hci_status]; 206 207 return MGMT_STATUS_FAILED; 208 } 209 210 static int cmd_status(struct sock *sk, u16 index, u16 cmd, u8 status) 211 { 212 struct sk_buff *skb; 213 struct mgmt_hdr *hdr; 214 struct mgmt_ev_cmd_status *ev; 215 int err; 216 217 BT_DBG("sock %p, index %u, cmd %u, status %u", sk, index, cmd, status); 218 219 skb = alloc_skb(sizeof(*hdr) + sizeof(*ev), GFP_KERNEL); 220 if (!skb) 221 return -ENOMEM; 222 223 hdr = (void *) skb_put(skb, sizeof(*hdr)); 224 225 hdr->opcode = __constant_cpu_to_le16(MGMT_EV_CMD_STATUS); 226 hdr->index = cpu_to_le16(index); 227 hdr->len = cpu_to_le16(sizeof(*ev)); 228 229 ev = (void *) skb_put(skb, sizeof(*ev)); 230 ev->status = status; 231 ev->opcode = cpu_to_le16(cmd); 232 233 err = sock_queue_rcv_skb(sk, skb); 234 if (err < 0) 235 kfree_skb(skb); 236 237 return err; 238 } 239 240 static int cmd_complete(struct sock *sk, u16 index, u16 cmd, u8 status, 241 void *rp, size_t rp_len) 242 { 243 struct sk_buff *skb; 244 struct mgmt_hdr *hdr; 245 struct mgmt_ev_cmd_complete *ev; 246 int err; 247 248 BT_DBG("sock %p", sk); 249 250 skb = alloc_skb(sizeof(*hdr) + sizeof(*ev) + rp_len, GFP_KERNEL); 251 if (!skb) 252 return -ENOMEM; 253 254 hdr = (void *) skb_put(skb, sizeof(*hdr)); 255 256 hdr->opcode = __constant_cpu_to_le16(MGMT_EV_CMD_COMPLETE); 257 hdr->index = cpu_to_le16(index); 258 hdr->len = cpu_to_le16(sizeof(*ev) + rp_len); 259 260 ev = (void *) skb_put(skb, sizeof(*ev) + rp_len); 261 ev->opcode = cpu_to_le16(cmd); 262 ev->status = status; 263 264 if (rp) 265 memcpy(ev->data, rp, rp_len); 266 267 err = sock_queue_rcv_skb(sk, skb); 268 if (err < 0) 269 kfree_skb(skb); 270 271 return err; 272 } 273 274 static int read_version(struct sock *sk, struct hci_dev *hdev, void *data, 275 u16 data_len) 276 { 277 struct mgmt_rp_read_version rp; 278 279 BT_DBG("sock %p", sk); 280 281 rp.version = MGMT_VERSION; 282 rp.revision = __constant_cpu_to_le16(MGMT_REVISION); 283 284 return cmd_complete(sk, MGMT_INDEX_NONE, MGMT_OP_READ_VERSION, 0, &rp, 285 sizeof(rp)); 286 } 287 288 static int read_commands(struct sock *sk, struct hci_dev *hdev, void *data, 289 u16 data_len) 290 { 291 struct mgmt_rp_read_commands *rp; 292 const u16 num_commands = ARRAY_SIZE(mgmt_commands); 293 const u16 num_events = ARRAY_SIZE(mgmt_events); 294 __le16 *opcode; 295 size_t rp_size; 296 int i, err; 297 298 BT_DBG("sock %p", sk); 299 300 rp_size = sizeof(*rp) + ((num_commands + num_events) * sizeof(u16)); 301 302 rp = kmalloc(rp_size, GFP_KERNEL); 303 if (!rp) 304 return -ENOMEM; 305 306 rp->num_commands = __constant_cpu_to_le16(num_commands); 307 rp->num_events = __constant_cpu_to_le16(num_events); 308 309 for (i = 0, opcode = rp->opcodes; i < num_commands; i++, opcode++) 310 put_unaligned_le16(mgmt_commands[i], opcode); 311 312 for (i = 0; i < num_events; i++, opcode++) 313 put_unaligned_le16(mgmt_events[i], opcode); 314 315 err = cmd_complete(sk, MGMT_INDEX_NONE, MGMT_OP_READ_COMMANDS, 0, rp, 316 rp_size); 317 kfree(rp); 318 319 return err; 320 } 321 322 static int read_index_list(struct sock *sk, struct hci_dev *hdev, void *data, 323 u16 data_len) 324 { 325 struct mgmt_rp_read_index_list *rp; 326 struct hci_dev *d; 327 size_t rp_len; 328 u16 count; 329 int err; 330 331 BT_DBG("sock %p", sk); 332 333 read_lock(&hci_dev_list_lock); 334 335 count = 0; 336 list_for_each_entry(d, &hci_dev_list, list) { 337 if (!mgmt_valid_hdev(d)) 338 continue; 339 340 count++; 341 } 342 343 rp_len = sizeof(*rp) + (2 * count); 344 rp = kmalloc(rp_len, GFP_ATOMIC); 345 if (!rp) { 346 read_unlock(&hci_dev_list_lock); 347 return -ENOMEM; 348 } 349 350 count = 0; 351 list_for_each_entry(d, &hci_dev_list, list) { 352 if (test_bit(HCI_SETUP, &d->dev_flags)) 353 continue; 354 355 if (!mgmt_valid_hdev(d)) 356 continue; 357 358 rp->index[count++] = cpu_to_le16(d->id); 359 BT_DBG("Added hci%u", d->id); 360 } 361 362 rp->num_controllers = cpu_to_le16(count); 363 rp_len = sizeof(*rp) + (2 * count); 364 365 read_unlock(&hci_dev_list_lock); 366 367 err = cmd_complete(sk, MGMT_INDEX_NONE, MGMT_OP_READ_INDEX_LIST, 0, rp, 368 rp_len); 369 370 kfree(rp); 371 372 return err; 373 } 374 375 static u32 get_supported_settings(struct hci_dev *hdev) 376 { 377 u32 settings = 0; 378 379 settings |= MGMT_SETTING_POWERED; 380 settings |= MGMT_SETTING_PAIRABLE; 381 382 if (lmp_ssp_capable(hdev)) 383 settings |= MGMT_SETTING_SSP; 384 385 if (lmp_bredr_capable(hdev)) { 386 settings |= MGMT_SETTING_CONNECTABLE; 387 settings |= MGMT_SETTING_FAST_CONNECTABLE; 388 settings |= MGMT_SETTING_DISCOVERABLE; 389 settings |= MGMT_SETTING_BREDR; 390 settings |= MGMT_SETTING_LINK_SECURITY; 391 } 392 393 if (enable_hs) 394 settings |= MGMT_SETTING_HS; 395 396 if (lmp_le_capable(hdev)) 397 settings |= MGMT_SETTING_LE; 398 399 return settings; 400 } 401 402 static u32 get_current_settings(struct hci_dev *hdev) 403 { 404 u32 settings = 0; 405 406 if (hdev_is_powered(hdev)) 407 settings |= MGMT_SETTING_POWERED; 408 409 if (test_bit(HCI_CONNECTABLE, &hdev->dev_flags)) 410 settings |= MGMT_SETTING_CONNECTABLE; 411 412 if (test_bit(HCI_DISCOVERABLE, &hdev->dev_flags)) 413 settings |= MGMT_SETTING_DISCOVERABLE; 414 415 if (test_bit(HCI_PAIRABLE, &hdev->dev_flags)) 416 settings |= MGMT_SETTING_PAIRABLE; 417 418 if (lmp_bredr_capable(hdev)) 419 settings |= MGMT_SETTING_BREDR; 420 421 if (test_bit(HCI_LE_ENABLED, &hdev->dev_flags)) 422 settings |= MGMT_SETTING_LE; 423 424 if (test_bit(HCI_LINK_SECURITY, &hdev->dev_flags)) 425 settings |= MGMT_SETTING_LINK_SECURITY; 426 427 if (test_bit(HCI_SSP_ENABLED, &hdev->dev_flags)) 428 settings |= MGMT_SETTING_SSP; 429 430 if (test_bit(HCI_HS_ENABLED, &hdev->dev_flags)) 431 settings |= MGMT_SETTING_HS; 432 433 return settings; 434 } 435 436 #define PNP_INFO_SVCLASS_ID 0x1200 437 438 static u8 bluetooth_base_uuid[] = { 439 0xFB, 0x34, 0x9B, 0x5F, 0x80, 0x00, 0x00, 0x80, 440 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 441 }; 442 443 static u16 get_uuid16(u8 *uuid128) 444 { 445 u32 val; 446 int i; 447 448 for (i = 0; i < 12; i++) { 449 if (bluetooth_base_uuid[i] != uuid128[i]) 450 return 0; 451 } 452 453 val = get_unaligned_le32(&uuid128[12]); 454 if (val > 0xffff) 455 return 0; 456 457 return (u16) val; 458 } 459 460 static void create_eir(struct hci_dev *hdev, u8 *data) 461 { 462 u8 *ptr = data; 463 u16 eir_len = 0; 464 u16 uuid16_list[HCI_MAX_EIR_LENGTH / sizeof(u16)]; 465 int i, truncated = 0; 466 struct bt_uuid *uuid; 467 size_t name_len; 468 469 name_len = strlen(hdev->dev_name); 470 471 if (name_len > 0) { 472 /* EIR Data type */ 473 if (name_len > 48) { 474 name_len = 48; 475 ptr[1] = EIR_NAME_SHORT; 476 } else 477 ptr[1] = EIR_NAME_COMPLETE; 478 479 /* EIR Data length */ 480 ptr[0] = name_len + 1; 481 482 memcpy(ptr + 2, hdev->dev_name, name_len); 483 484 eir_len += (name_len + 2); 485 ptr += (name_len + 2); 486 } 487 488 if (hdev->inq_tx_power != HCI_TX_POWER_INVALID) { 489 ptr[0] = 2; 490 ptr[1] = EIR_TX_POWER; 491 ptr[2] = (u8) hdev->inq_tx_power; 492 493 eir_len += 3; 494 ptr += 3; 495 } 496 497 if (hdev->devid_source > 0) { 498 ptr[0] = 9; 499 ptr[1] = EIR_DEVICE_ID; 500 501 put_unaligned_le16(hdev->devid_source, ptr + 2); 502 put_unaligned_le16(hdev->devid_vendor, ptr + 4); 503 put_unaligned_le16(hdev->devid_product, ptr + 6); 504 put_unaligned_le16(hdev->devid_version, ptr + 8); 505 506 eir_len += 10; 507 ptr += 10; 508 } 509 510 memset(uuid16_list, 0, sizeof(uuid16_list)); 511 512 /* Group all UUID16 types */ 513 list_for_each_entry(uuid, &hdev->uuids, list) { 514 u16 uuid16; 515 516 uuid16 = get_uuid16(uuid->uuid); 517 if (uuid16 == 0) 518 return; 519 520 if (uuid16 < 0x1100) 521 continue; 522 523 if (uuid16 == PNP_INFO_SVCLASS_ID) 524 continue; 525 526 /* Stop if not enough space to put next UUID */ 527 if (eir_len + 2 + sizeof(u16) > HCI_MAX_EIR_LENGTH) { 528 truncated = 1; 529 break; 530 } 531 532 /* Check for duplicates */ 533 for (i = 0; uuid16_list[i] != 0; i++) 534 if (uuid16_list[i] == uuid16) 535 break; 536 537 if (uuid16_list[i] == 0) { 538 uuid16_list[i] = uuid16; 539 eir_len += sizeof(u16); 540 } 541 } 542 543 if (uuid16_list[0] != 0) { 544 u8 *length = ptr; 545 546 /* EIR Data type */ 547 ptr[1] = truncated ? EIR_UUID16_SOME : EIR_UUID16_ALL; 548 549 ptr += 2; 550 eir_len += 2; 551 552 for (i = 0; uuid16_list[i] != 0; i++) { 553 *ptr++ = (uuid16_list[i] & 0x00ff); 554 *ptr++ = (uuid16_list[i] & 0xff00) >> 8; 555 } 556 557 /* EIR Data length */ 558 *length = (i * sizeof(u16)) + 1; 559 } 560 } 561 562 static int update_eir(struct hci_dev *hdev) 563 { 564 struct hci_cp_write_eir cp; 565 566 if (!hdev_is_powered(hdev)) 567 return 0; 568 569 if (!lmp_ext_inq_capable(hdev)) 570 return 0; 571 572 if (!test_bit(HCI_SSP_ENABLED, &hdev->dev_flags)) 573 return 0; 574 575 if (test_bit(HCI_SERVICE_CACHE, &hdev->dev_flags)) 576 return 0; 577 578 memset(&cp, 0, sizeof(cp)); 579 580 create_eir(hdev, cp.data); 581 582 if (memcmp(cp.data, hdev->eir, sizeof(cp.data)) == 0) 583 return 0; 584 585 memcpy(hdev->eir, cp.data, sizeof(cp.data)); 586 587 return hci_send_cmd(hdev, HCI_OP_WRITE_EIR, sizeof(cp), &cp); 588 } 589 590 static u8 get_service_classes(struct hci_dev *hdev) 591 { 592 struct bt_uuid *uuid; 593 u8 val = 0; 594 595 list_for_each_entry(uuid, &hdev->uuids, list) 596 val |= uuid->svc_hint; 597 598 return val; 599 } 600 601 static int update_class(struct hci_dev *hdev) 602 { 603 u8 cod[3]; 604 int err; 605 606 BT_DBG("%s", hdev->name); 607 608 if (!hdev_is_powered(hdev)) 609 return 0; 610 611 if (test_bit(HCI_SERVICE_CACHE, &hdev->dev_flags)) 612 return 0; 613 614 cod[0] = hdev->minor_class; 615 cod[1] = hdev->major_class; 616 cod[2] = get_service_classes(hdev); 617 618 if (memcmp(cod, hdev->dev_class, 3) == 0) 619 return 0; 620 621 err = hci_send_cmd(hdev, HCI_OP_WRITE_CLASS_OF_DEV, sizeof(cod), cod); 622 if (err == 0) 623 set_bit(HCI_PENDING_CLASS, &hdev->dev_flags); 624 625 return err; 626 } 627 628 static void service_cache_off(struct work_struct *work) 629 { 630 struct hci_dev *hdev = container_of(work, struct hci_dev, 631 service_cache.work); 632 633 if (!test_and_clear_bit(HCI_SERVICE_CACHE, &hdev->dev_flags)) 634 return; 635 636 hci_dev_lock(hdev); 637 638 update_eir(hdev); 639 update_class(hdev); 640 641 hci_dev_unlock(hdev); 642 } 643 644 static void mgmt_init_hdev(struct sock *sk, struct hci_dev *hdev) 645 { 646 if (test_and_set_bit(HCI_MGMT, &hdev->dev_flags)) 647 return; 648 649 INIT_DELAYED_WORK(&hdev->service_cache, service_cache_off); 650 651 /* Non-mgmt controlled devices get this bit set 652 * implicitly so that pairing works for them, however 653 * for mgmt we require user-space to explicitly enable 654 * it 655 */ 656 clear_bit(HCI_PAIRABLE, &hdev->dev_flags); 657 } 658 659 static int read_controller_info(struct sock *sk, struct hci_dev *hdev, 660 void *data, u16 data_len) 661 { 662 struct mgmt_rp_read_info rp; 663 664 BT_DBG("sock %p %s", sk, hdev->name); 665 666 hci_dev_lock(hdev); 667 668 memset(&rp, 0, sizeof(rp)); 669 670 bacpy(&rp.bdaddr, &hdev->bdaddr); 671 672 rp.version = hdev->hci_ver; 673 rp.manufacturer = cpu_to_le16(hdev->manufacturer); 674 675 rp.supported_settings = cpu_to_le32(get_supported_settings(hdev)); 676 rp.current_settings = cpu_to_le32(get_current_settings(hdev)); 677 678 memcpy(rp.dev_class, hdev->dev_class, 3); 679 680 memcpy(rp.name, hdev->dev_name, sizeof(hdev->dev_name)); 681 memcpy(rp.short_name, hdev->short_name, sizeof(hdev->short_name)); 682 683 hci_dev_unlock(hdev); 684 685 return cmd_complete(sk, hdev->id, MGMT_OP_READ_INFO, 0, &rp, 686 sizeof(rp)); 687 } 688 689 static void mgmt_pending_free(struct pending_cmd *cmd) 690 { 691 sock_put(cmd->sk); 692 kfree(cmd->param); 693 kfree(cmd); 694 } 695 696 static struct pending_cmd *mgmt_pending_add(struct sock *sk, u16 opcode, 697 struct hci_dev *hdev, void *data, 698 u16 len) 699 { 700 struct pending_cmd *cmd; 701 702 cmd = kmalloc(sizeof(*cmd), GFP_KERNEL); 703 if (!cmd) 704 return NULL; 705 706 cmd->opcode = opcode; 707 cmd->index = hdev->id; 708 709 cmd->param = kmalloc(len, GFP_KERNEL); 710 if (!cmd->param) { 711 kfree(cmd); 712 return NULL; 713 } 714 715 if (data) 716 memcpy(cmd->param, data, len); 717 718 cmd->sk = sk; 719 sock_hold(sk); 720 721 list_add(&cmd->list, &hdev->mgmt_pending); 722 723 return cmd; 724 } 725 726 static void mgmt_pending_foreach(u16 opcode, struct hci_dev *hdev, 727 void (*cb)(struct pending_cmd *cmd, 728 void *data), 729 void *data) 730 { 731 struct list_head *p, *n; 732 733 list_for_each_safe(p, n, &hdev->mgmt_pending) { 734 struct pending_cmd *cmd; 735 736 cmd = list_entry(p, struct pending_cmd, list); 737 738 if (opcode > 0 && cmd->opcode != opcode) 739 continue; 740 741 cb(cmd, data); 742 } 743 } 744 745 static struct pending_cmd *mgmt_pending_find(u16 opcode, struct hci_dev *hdev) 746 { 747 struct pending_cmd *cmd; 748 749 list_for_each_entry(cmd, &hdev->mgmt_pending, list) { 750 if (cmd->opcode == opcode) 751 return cmd; 752 } 753 754 return NULL; 755 } 756 757 static void mgmt_pending_remove(struct pending_cmd *cmd) 758 { 759 list_del(&cmd->list); 760 mgmt_pending_free(cmd); 761 } 762 763 static int send_settings_rsp(struct sock *sk, u16 opcode, struct hci_dev *hdev) 764 { 765 __le32 settings = cpu_to_le32(get_current_settings(hdev)); 766 767 return cmd_complete(sk, hdev->id, opcode, 0, &settings, 768 sizeof(settings)); 769 } 770 771 static int set_powered(struct sock *sk, struct hci_dev *hdev, void *data, 772 u16 len) 773 { 774 struct mgmt_mode *cp = data; 775 struct pending_cmd *cmd; 776 int err; 777 778 BT_DBG("request for %s", hdev->name); 779 780 hci_dev_lock(hdev); 781 782 if (test_and_clear_bit(HCI_AUTO_OFF, &hdev->dev_flags)) { 783 cancel_delayed_work(&hdev->power_off); 784 785 if (cp->val) { 786 err = send_settings_rsp(sk, MGMT_OP_SET_POWERED, hdev); 787 mgmt_powered(hdev, 1); 788 goto failed; 789 } 790 } 791 792 if (!!cp->val == hdev_is_powered(hdev)) { 793 err = send_settings_rsp(sk, MGMT_OP_SET_POWERED, hdev); 794 goto failed; 795 } 796 797 if (mgmt_pending_find(MGMT_OP_SET_POWERED, hdev)) { 798 err = cmd_status(sk, hdev->id, MGMT_OP_SET_POWERED, 799 MGMT_STATUS_BUSY); 800 goto failed; 801 } 802 803 cmd = mgmt_pending_add(sk, MGMT_OP_SET_POWERED, hdev, data, len); 804 if (!cmd) { 805 err = -ENOMEM; 806 goto failed; 807 } 808 809 if (cp->val) 810 schedule_work(&hdev->power_on); 811 else 812 schedule_work(&hdev->power_off.work); 813 814 err = 0; 815 816 failed: 817 hci_dev_unlock(hdev); 818 return err; 819 } 820 821 static int mgmt_event(u16 event, struct hci_dev *hdev, void *data, u16 data_len, 822 struct sock *skip_sk) 823 { 824 struct sk_buff *skb; 825 struct mgmt_hdr *hdr; 826 827 skb = alloc_skb(sizeof(*hdr) + data_len, GFP_KERNEL); 828 if (!skb) 829 return -ENOMEM; 830 831 hdr = (void *) skb_put(skb, sizeof(*hdr)); 832 hdr->opcode = cpu_to_le16(event); 833 if (hdev) 834 hdr->index = cpu_to_le16(hdev->id); 835 else 836 hdr->index = __constant_cpu_to_le16(MGMT_INDEX_NONE); 837 hdr->len = cpu_to_le16(data_len); 838 839 if (data) 840 memcpy(skb_put(skb, data_len), data, data_len); 841 842 /* Time stamp */ 843 __net_timestamp(skb); 844 845 hci_send_to_control(skb, skip_sk); 846 kfree_skb(skb); 847 848 return 0; 849 } 850 851 static int new_settings(struct hci_dev *hdev, struct sock *skip) 852 { 853 __le32 ev; 854 855 ev = cpu_to_le32(get_current_settings(hdev)); 856 857 return mgmt_event(MGMT_EV_NEW_SETTINGS, hdev, &ev, sizeof(ev), skip); 858 } 859 860 static int set_discoverable(struct sock *sk, struct hci_dev *hdev, void *data, 861 u16 len) 862 { 863 struct mgmt_cp_set_discoverable *cp = data; 864 struct pending_cmd *cmd; 865 u16 timeout; 866 u8 scan; 867 int err; 868 869 BT_DBG("request for %s", hdev->name); 870 871 if (!lmp_bredr_capable(hdev)) 872 return cmd_status(sk, hdev->id, MGMT_OP_SET_DISCOVERABLE, 873 MGMT_STATUS_NOT_SUPPORTED); 874 875 timeout = __le16_to_cpu(cp->timeout); 876 if (!cp->val && timeout > 0) 877 return cmd_status(sk, hdev->id, MGMT_OP_SET_DISCOVERABLE, 878 MGMT_STATUS_INVALID_PARAMS); 879 880 hci_dev_lock(hdev); 881 882 if (!hdev_is_powered(hdev) && timeout > 0) { 883 err = cmd_status(sk, hdev->id, MGMT_OP_SET_DISCOVERABLE, 884 MGMT_STATUS_NOT_POWERED); 885 goto failed; 886 } 887 888 if (mgmt_pending_find(MGMT_OP_SET_DISCOVERABLE, hdev) || 889 mgmt_pending_find(MGMT_OP_SET_CONNECTABLE, hdev)) { 890 err = cmd_status(sk, hdev->id, MGMT_OP_SET_DISCOVERABLE, 891 MGMT_STATUS_BUSY); 892 goto failed; 893 } 894 895 if (!test_bit(HCI_CONNECTABLE, &hdev->dev_flags)) { 896 err = cmd_status(sk, hdev->id, MGMT_OP_SET_DISCOVERABLE, 897 MGMT_STATUS_REJECTED); 898 goto failed; 899 } 900 901 if (!hdev_is_powered(hdev)) { 902 bool changed = false; 903 904 if (!!cp->val != test_bit(HCI_DISCOVERABLE, &hdev->dev_flags)) { 905 change_bit(HCI_DISCOVERABLE, &hdev->dev_flags); 906 changed = true; 907 } 908 909 err = send_settings_rsp(sk, MGMT_OP_SET_DISCOVERABLE, hdev); 910 if (err < 0) 911 goto failed; 912 913 if (changed) 914 err = new_settings(hdev, sk); 915 916 goto failed; 917 } 918 919 if (!!cp->val == test_bit(HCI_DISCOVERABLE, &hdev->dev_flags)) { 920 if (hdev->discov_timeout > 0) { 921 cancel_delayed_work(&hdev->discov_off); 922 hdev->discov_timeout = 0; 923 } 924 925 if (cp->val && timeout > 0) { 926 hdev->discov_timeout = timeout; 927 queue_delayed_work(hdev->workqueue, &hdev->discov_off, 928 msecs_to_jiffies(hdev->discov_timeout * 1000)); 929 } 930 931 err = send_settings_rsp(sk, MGMT_OP_SET_DISCOVERABLE, hdev); 932 goto failed; 933 } 934 935 cmd = mgmt_pending_add(sk, MGMT_OP_SET_DISCOVERABLE, hdev, data, len); 936 if (!cmd) { 937 err = -ENOMEM; 938 goto failed; 939 } 940 941 scan = SCAN_PAGE; 942 943 if (cp->val) 944 scan |= SCAN_INQUIRY; 945 else 946 cancel_delayed_work(&hdev->discov_off); 947 948 err = hci_send_cmd(hdev, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan); 949 if (err < 0) 950 mgmt_pending_remove(cmd); 951 952 if (cp->val) 953 hdev->discov_timeout = timeout; 954 955 failed: 956 hci_dev_unlock(hdev); 957 return err; 958 } 959 960 static int set_connectable(struct sock *sk, struct hci_dev *hdev, void *data, 961 u16 len) 962 { 963 struct mgmt_mode *cp = data; 964 struct pending_cmd *cmd; 965 u8 scan; 966 int err; 967 968 BT_DBG("request for %s", hdev->name); 969 970 if (!lmp_bredr_capable(hdev)) 971 return cmd_status(sk, hdev->id, MGMT_OP_SET_CONNECTABLE, 972 MGMT_STATUS_NOT_SUPPORTED); 973 974 hci_dev_lock(hdev); 975 976 if (!hdev_is_powered(hdev)) { 977 bool changed = false; 978 979 if (!!cp->val != test_bit(HCI_CONNECTABLE, &hdev->dev_flags)) 980 changed = true; 981 982 if (cp->val) { 983 set_bit(HCI_CONNECTABLE, &hdev->dev_flags); 984 } else { 985 clear_bit(HCI_CONNECTABLE, &hdev->dev_flags); 986 clear_bit(HCI_DISCOVERABLE, &hdev->dev_flags); 987 } 988 989 err = send_settings_rsp(sk, MGMT_OP_SET_CONNECTABLE, hdev); 990 if (err < 0) 991 goto failed; 992 993 if (changed) 994 err = new_settings(hdev, sk); 995 996 goto failed; 997 } 998 999 if (mgmt_pending_find(MGMT_OP_SET_DISCOVERABLE, hdev) || 1000 mgmt_pending_find(MGMT_OP_SET_CONNECTABLE, hdev)) { 1001 err = cmd_status(sk, hdev->id, MGMT_OP_SET_CONNECTABLE, 1002 MGMT_STATUS_BUSY); 1003 goto failed; 1004 } 1005 1006 if (!!cp->val == test_bit(HCI_PSCAN, &hdev->flags)) { 1007 err = send_settings_rsp(sk, MGMT_OP_SET_CONNECTABLE, hdev); 1008 goto failed; 1009 } 1010 1011 cmd = mgmt_pending_add(sk, MGMT_OP_SET_CONNECTABLE, hdev, data, len); 1012 if (!cmd) { 1013 err = -ENOMEM; 1014 goto failed; 1015 } 1016 1017 if (cp->val) { 1018 scan = SCAN_PAGE; 1019 } else { 1020 scan = 0; 1021 1022 if (test_bit(HCI_ISCAN, &hdev->flags) && 1023 hdev->discov_timeout > 0) 1024 cancel_delayed_work(&hdev->discov_off); 1025 } 1026 1027 err = hci_send_cmd(hdev, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan); 1028 if (err < 0) 1029 mgmt_pending_remove(cmd); 1030 1031 failed: 1032 hci_dev_unlock(hdev); 1033 return err; 1034 } 1035 1036 static int set_pairable(struct sock *sk, struct hci_dev *hdev, void *data, 1037 u16 len) 1038 { 1039 struct mgmt_mode *cp = data; 1040 int err; 1041 1042 BT_DBG("request for %s", hdev->name); 1043 1044 hci_dev_lock(hdev); 1045 1046 if (cp->val) 1047 set_bit(HCI_PAIRABLE, &hdev->dev_flags); 1048 else 1049 clear_bit(HCI_PAIRABLE, &hdev->dev_flags); 1050 1051 err = send_settings_rsp(sk, MGMT_OP_SET_PAIRABLE, hdev); 1052 if (err < 0) 1053 goto failed; 1054 1055 err = new_settings(hdev, sk); 1056 1057 failed: 1058 hci_dev_unlock(hdev); 1059 return err; 1060 } 1061 1062 static int set_link_security(struct sock *sk, struct hci_dev *hdev, void *data, 1063 u16 len) 1064 { 1065 struct mgmt_mode *cp = data; 1066 struct pending_cmd *cmd; 1067 u8 val; 1068 int err; 1069 1070 BT_DBG("request for %s", hdev->name); 1071 1072 if (!lmp_bredr_capable(hdev)) 1073 return cmd_status(sk, hdev->id, MGMT_OP_SET_LINK_SECURITY, 1074 MGMT_STATUS_NOT_SUPPORTED); 1075 1076 hci_dev_lock(hdev); 1077 1078 if (!hdev_is_powered(hdev)) { 1079 bool changed = false; 1080 1081 if (!!cp->val != test_bit(HCI_LINK_SECURITY, 1082 &hdev->dev_flags)) { 1083 change_bit(HCI_LINK_SECURITY, &hdev->dev_flags); 1084 changed = true; 1085 } 1086 1087 err = send_settings_rsp(sk, MGMT_OP_SET_LINK_SECURITY, hdev); 1088 if (err < 0) 1089 goto failed; 1090 1091 if (changed) 1092 err = new_settings(hdev, sk); 1093 1094 goto failed; 1095 } 1096 1097 if (mgmt_pending_find(MGMT_OP_SET_LINK_SECURITY, hdev)) { 1098 err = cmd_status(sk, hdev->id, MGMT_OP_SET_LINK_SECURITY, 1099 MGMT_STATUS_BUSY); 1100 goto failed; 1101 } 1102 1103 val = !!cp->val; 1104 1105 if (test_bit(HCI_AUTH, &hdev->flags) == val) { 1106 err = send_settings_rsp(sk, MGMT_OP_SET_LINK_SECURITY, hdev); 1107 goto failed; 1108 } 1109 1110 cmd = mgmt_pending_add(sk, MGMT_OP_SET_LINK_SECURITY, hdev, data, len); 1111 if (!cmd) { 1112 err = -ENOMEM; 1113 goto failed; 1114 } 1115 1116 err = hci_send_cmd(hdev, HCI_OP_WRITE_AUTH_ENABLE, sizeof(val), &val); 1117 if (err < 0) { 1118 mgmt_pending_remove(cmd); 1119 goto failed; 1120 } 1121 1122 failed: 1123 hci_dev_unlock(hdev); 1124 return err; 1125 } 1126 1127 static int set_ssp(struct sock *sk, struct hci_dev *hdev, void *data, u16 len) 1128 { 1129 struct mgmt_mode *cp = data; 1130 struct pending_cmd *cmd; 1131 u8 val; 1132 int err; 1133 1134 BT_DBG("request for %s", hdev->name); 1135 1136 hci_dev_lock(hdev); 1137 1138 if (!lmp_ssp_capable(hdev)) { 1139 err = cmd_status(sk, hdev->id, MGMT_OP_SET_SSP, 1140 MGMT_STATUS_NOT_SUPPORTED); 1141 goto failed; 1142 } 1143 1144 val = !!cp->val; 1145 1146 if (!hdev_is_powered(hdev)) { 1147 bool changed = false; 1148 1149 if (val != test_bit(HCI_SSP_ENABLED, &hdev->dev_flags)) { 1150 change_bit(HCI_SSP_ENABLED, &hdev->dev_flags); 1151 changed = true; 1152 } 1153 1154 err = send_settings_rsp(sk, MGMT_OP_SET_SSP, hdev); 1155 if (err < 0) 1156 goto failed; 1157 1158 if (changed) 1159 err = new_settings(hdev, sk); 1160 1161 goto failed; 1162 } 1163 1164 if (mgmt_pending_find(MGMT_OP_SET_SSP, hdev)) { 1165 err = cmd_status(sk, hdev->id, MGMT_OP_SET_SSP, 1166 MGMT_STATUS_BUSY); 1167 goto failed; 1168 } 1169 1170 if (test_bit(HCI_SSP_ENABLED, &hdev->dev_flags) == val) { 1171 err = send_settings_rsp(sk, MGMT_OP_SET_SSP, hdev); 1172 goto failed; 1173 } 1174 1175 cmd = mgmt_pending_add(sk, MGMT_OP_SET_SSP, hdev, data, len); 1176 if (!cmd) { 1177 err = -ENOMEM; 1178 goto failed; 1179 } 1180 1181 err = hci_send_cmd(hdev, HCI_OP_WRITE_SSP_MODE, sizeof(val), &val); 1182 if (err < 0) { 1183 mgmt_pending_remove(cmd); 1184 goto failed; 1185 } 1186 1187 failed: 1188 hci_dev_unlock(hdev); 1189 return err; 1190 } 1191 1192 static int set_hs(struct sock *sk, struct hci_dev *hdev, void *data, u16 len) 1193 { 1194 struct mgmt_mode *cp = data; 1195 1196 BT_DBG("request for %s", hdev->name); 1197 1198 if (!enable_hs) 1199 return cmd_status(sk, hdev->id, MGMT_OP_SET_HS, 1200 MGMT_STATUS_NOT_SUPPORTED); 1201 1202 if (cp->val) 1203 set_bit(HCI_HS_ENABLED, &hdev->dev_flags); 1204 else 1205 clear_bit(HCI_HS_ENABLED, &hdev->dev_flags); 1206 1207 return send_settings_rsp(sk, MGMT_OP_SET_HS, hdev); 1208 } 1209 1210 static int set_le(struct sock *sk, struct hci_dev *hdev, void *data, u16 len) 1211 { 1212 struct mgmt_mode *cp = data; 1213 struct hci_cp_write_le_host_supported hci_cp; 1214 struct pending_cmd *cmd; 1215 int err; 1216 u8 val, enabled; 1217 1218 BT_DBG("request for %s", hdev->name); 1219 1220 hci_dev_lock(hdev); 1221 1222 if (!lmp_le_capable(hdev)) { 1223 err = cmd_status(sk, hdev->id, MGMT_OP_SET_LE, 1224 MGMT_STATUS_NOT_SUPPORTED); 1225 goto unlock; 1226 } 1227 1228 val = !!cp->val; 1229 enabled = lmp_host_le_capable(hdev); 1230 1231 if (!hdev_is_powered(hdev) || val == enabled) { 1232 bool changed = false; 1233 1234 if (val != test_bit(HCI_LE_ENABLED, &hdev->dev_flags)) { 1235 change_bit(HCI_LE_ENABLED, &hdev->dev_flags); 1236 changed = true; 1237 } 1238 1239 err = send_settings_rsp(sk, MGMT_OP_SET_LE, hdev); 1240 if (err < 0) 1241 goto unlock; 1242 1243 if (changed) 1244 err = new_settings(hdev, sk); 1245 1246 goto unlock; 1247 } 1248 1249 if (mgmt_pending_find(MGMT_OP_SET_LE, hdev)) { 1250 err = cmd_status(sk, hdev->id, MGMT_OP_SET_LE, 1251 MGMT_STATUS_BUSY); 1252 goto unlock; 1253 } 1254 1255 cmd = mgmt_pending_add(sk, MGMT_OP_SET_LE, hdev, data, len); 1256 if (!cmd) { 1257 err = -ENOMEM; 1258 goto unlock; 1259 } 1260 1261 memset(&hci_cp, 0, sizeof(hci_cp)); 1262 1263 if (val) { 1264 hci_cp.le = val; 1265 hci_cp.simul = lmp_le_br_capable(hdev); 1266 } 1267 1268 err = hci_send_cmd(hdev, HCI_OP_WRITE_LE_HOST_SUPPORTED, sizeof(hci_cp), 1269 &hci_cp); 1270 if (err < 0) 1271 mgmt_pending_remove(cmd); 1272 1273 unlock: 1274 hci_dev_unlock(hdev); 1275 return err; 1276 } 1277 1278 static int add_uuid(struct sock *sk, struct hci_dev *hdev, void *data, u16 len) 1279 { 1280 struct mgmt_cp_add_uuid *cp = data; 1281 struct pending_cmd *cmd; 1282 struct bt_uuid *uuid; 1283 int err; 1284 1285 BT_DBG("request for %s", hdev->name); 1286 1287 hci_dev_lock(hdev); 1288 1289 if (test_bit(HCI_PENDING_CLASS, &hdev->dev_flags)) { 1290 err = cmd_status(sk, hdev->id, MGMT_OP_ADD_UUID, 1291 MGMT_STATUS_BUSY); 1292 goto failed; 1293 } 1294 1295 uuid = kmalloc(sizeof(*uuid), GFP_KERNEL); 1296 if (!uuid) { 1297 err = -ENOMEM; 1298 goto failed; 1299 } 1300 1301 memcpy(uuid->uuid, cp->uuid, 16); 1302 uuid->svc_hint = cp->svc_hint; 1303 1304 list_add(&uuid->list, &hdev->uuids); 1305 1306 err = update_class(hdev); 1307 if (err < 0) 1308 goto failed; 1309 1310 err = update_eir(hdev); 1311 if (err < 0) 1312 goto failed; 1313 1314 if (!test_bit(HCI_PENDING_CLASS, &hdev->dev_flags)) { 1315 err = cmd_complete(sk, hdev->id, MGMT_OP_ADD_UUID, 0, 1316 hdev->dev_class, 3); 1317 goto failed; 1318 } 1319 1320 cmd = mgmt_pending_add(sk, MGMT_OP_ADD_UUID, hdev, data, len); 1321 if (!cmd) 1322 err = -ENOMEM; 1323 1324 failed: 1325 hci_dev_unlock(hdev); 1326 return err; 1327 } 1328 1329 static bool enable_service_cache(struct hci_dev *hdev) 1330 { 1331 if (!hdev_is_powered(hdev)) 1332 return false; 1333 1334 if (!test_and_set_bit(HCI_SERVICE_CACHE, &hdev->dev_flags)) { 1335 schedule_delayed_work(&hdev->service_cache, CACHE_TIMEOUT); 1336 return true; 1337 } 1338 1339 return false; 1340 } 1341 1342 static int remove_uuid(struct sock *sk, struct hci_dev *hdev, void *data, 1343 u16 len) 1344 { 1345 struct mgmt_cp_remove_uuid *cp = data; 1346 struct pending_cmd *cmd; 1347 struct list_head *p, *n; 1348 u8 bt_uuid_any[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }; 1349 int err, found; 1350 1351 BT_DBG("request for %s", hdev->name); 1352 1353 hci_dev_lock(hdev); 1354 1355 if (test_bit(HCI_PENDING_CLASS, &hdev->dev_flags)) { 1356 err = cmd_status(sk, hdev->id, MGMT_OP_REMOVE_UUID, 1357 MGMT_STATUS_BUSY); 1358 goto unlock; 1359 } 1360 1361 if (memcmp(cp->uuid, bt_uuid_any, 16) == 0) { 1362 err = hci_uuids_clear(hdev); 1363 1364 if (enable_service_cache(hdev)) { 1365 err = cmd_complete(sk, hdev->id, MGMT_OP_REMOVE_UUID, 1366 0, hdev->dev_class, 3); 1367 goto unlock; 1368 } 1369 1370 goto update_class; 1371 } 1372 1373 found = 0; 1374 1375 list_for_each_safe(p, n, &hdev->uuids) { 1376 struct bt_uuid *match = list_entry(p, struct bt_uuid, list); 1377 1378 if (memcmp(match->uuid, cp->uuid, 16) != 0) 1379 continue; 1380 1381 list_del(&match->list); 1382 kfree(match); 1383 found++; 1384 } 1385 1386 if (found == 0) { 1387 err = cmd_status(sk, hdev->id, MGMT_OP_REMOVE_UUID, 1388 MGMT_STATUS_INVALID_PARAMS); 1389 goto unlock; 1390 } 1391 1392 update_class: 1393 err = update_class(hdev); 1394 if (err < 0) 1395 goto unlock; 1396 1397 err = update_eir(hdev); 1398 if (err < 0) 1399 goto unlock; 1400 1401 if (!test_bit(HCI_PENDING_CLASS, &hdev->dev_flags)) { 1402 err = cmd_complete(sk, hdev->id, MGMT_OP_REMOVE_UUID, 0, 1403 hdev->dev_class, 3); 1404 goto unlock; 1405 } 1406 1407 cmd = mgmt_pending_add(sk, MGMT_OP_REMOVE_UUID, hdev, data, len); 1408 if (!cmd) 1409 err = -ENOMEM; 1410 1411 unlock: 1412 hci_dev_unlock(hdev); 1413 return err; 1414 } 1415 1416 static int set_dev_class(struct sock *sk, struct hci_dev *hdev, void *data, 1417 u16 len) 1418 { 1419 struct mgmt_cp_set_dev_class *cp = data; 1420 struct pending_cmd *cmd; 1421 int err; 1422 1423 BT_DBG("request for %s", hdev->name); 1424 1425 hci_dev_lock(hdev); 1426 1427 if (test_bit(HCI_PENDING_CLASS, &hdev->dev_flags)) { 1428 err = cmd_status(sk, hdev->id, MGMT_OP_SET_DEV_CLASS, 1429 MGMT_STATUS_BUSY); 1430 goto unlock; 1431 } 1432 1433 hdev->major_class = cp->major; 1434 hdev->minor_class = cp->minor; 1435 1436 if (!hdev_is_powered(hdev)) { 1437 err = cmd_complete(sk, hdev->id, MGMT_OP_SET_DEV_CLASS, 0, 1438 hdev->dev_class, 3); 1439 goto unlock; 1440 } 1441 1442 if (test_and_clear_bit(HCI_SERVICE_CACHE, &hdev->dev_flags)) { 1443 hci_dev_unlock(hdev); 1444 cancel_delayed_work_sync(&hdev->service_cache); 1445 hci_dev_lock(hdev); 1446 update_eir(hdev); 1447 } 1448 1449 err = update_class(hdev); 1450 if (err < 0) 1451 goto unlock; 1452 1453 if (!test_bit(HCI_PENDING_CLASS, &hdev->dev_flags)) { 1454 err = cmd_complete(sk, hdev->id, MGMT_OP_SET_DEV_CLASS, 0, 1455 hdev->dev_class, 3); 1456 goto unlock; 1457 } 1458 1459 cmd = mgmt_pending_add(sk, MGMT_OP_SET_DEV_CLASS, hdev, data, len); 1460 if (!cmd) 1461 err = -ENOMEM; 1462 1463 unlock: 1464 hci_dev_unlock(hdev); 1465 return err; 1466 } 1467 1468 static int load_link_keys(struct sock *sk, struct hci_dev *hdev, void *data, 1469 u16 len) 1470 { 1471 struct mgmt_cp_load_link_keys *cp = data; 1472 u16 key_count, expected_len; 1473 int i; 1474 1475 key_count = __le16_to_cpu(cp->key_count); 1476 1477 expected_len = sizeof(*cp) + key_count * 1478 sizeof(struct mgmt_link_key_info); 1479 if (expected_len != len) { 1480 BT_ERR("load_link_keys: expected %u bytes, got %u bytes", 1481 len, expected_len); 1482 return cmd_status(sk, hdev->id, MGMT_OP_LOAD_LINK_KEYS, 1483 MGMT_STATUS_INVALID_PARAMS); 1484 } 1485 1486 BT_DBG("%s debug_keys %u key_count %u", hdev->name, cp->debug_keys, 1487 key_count); 1488 1489 hci_dev_lock(hdev); 1490 1491 hci_link_keys_clear(hdev); 1492 1493 set_bit(HCI_LINK_KEYS, &hdev->dev_flags); 1494 1495 if (cp->debug_keys) 1496 set_bit(HCI_DEBUG_KEYS, &hdev->dev_flags); 1497 else 1498 clear_bit(HCI_DEBUG_KEYS, &hdev->dev_flags); 1499 1500 for (i = 0; i < key_count; i++) { 1501 struct mgmt_link_key_info *key = &cp->keys[i]; 1502 1503 hci_add_link_key(hdev, NULL, 0, &key->addr.bdaddr, key->val, 1504 key->type, key->pin_len); 1505 } 1506 1507 cmd_complete(sk, hdev->id, MGMT_OP_LOAD_LINK_KEYS, 0, NULL, 0); 1508 1509 hci_dev_unlock(hdev); 1510 1511 return 0; 1512 } 1513 1514 static int device_unpaired(struct hci_dev *hdev, bdaddr_t *bdaddr, 1515 u8 addr_type, struct sock *skip_sk) 1516 { 1517 struct mgmt_ev_device_unpaired ev; 1518 1519 bacpy(&ev.addr.bdaddr, bdaddr); 1520 ev.addr.type = addr_type; 1521 1522 return mgmt_event(MGMT_EV_DEVICE_UNPAIRED, hdev, &ev, sizeof(ev), 1523 skip_sk); 1524 } 1525 1526 static int unpair_device(struct sock *sk, struct hci_dev *hdev, void *data, 1527 u16 len) 1528 { 1529 struct mgmt_cp_unpair_device *cp = data; 1530 struct mgmt_rp_unpair_device rp; 1531 struct hci_cp_disconnect dc; 1532 struct pending_cmd *cmd; 1533 struct hci_conn *conn; 1534 int err; 1535 1536 hci_dev_lock(hdev); 1537 1538 memset(&rp, 0, sizeof(rp)); 1539 bacpy(&rp.addr.bdaddr, &cp->addr.bdaddr); 1540 rp.addr.type = cp->addr.type; 1541 1542 if (!hdev_is_powered(hdev)) { 1543 err = cmd_complete(sk, hdev->id, MGMT_OP_UNPAIR_DEVICE, 1544 MGMT_STATUS_NOT_POWERED, &rp, sizeof(rp)); 1545 goto unlock; 1546 } 1547 1548 if (cp->addr.type == BDADDR_BREDR) 1549 err = hci_remove_link_key(hdev, &cp->addr.bdaddr); 1550 else 1551 err = hci_remove_ltk(hdev, &cp->addr.bdaddr); 1552 1553 if (err < 0) { 1554 err = cmd_complete(sk, hdev->id, MGMT_OP_UNPAIR_DEVICE, 1555 MGMT_STATUS_NOT_PAIRED, &rp, sizeof(rp)); 1556 goto unlock; 1557 } 1558 1559 if (cp->disconnect) { 1560 if (cp->addr.type == BDADDR_BREDR) 1561 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, 1562 &cp->addr.bdaddr); 1563 else 1564 conn = hci_conn_hash_lookup_ba(hdev, LE_LINK, 1565 &cp->addr.bdaddr); 1566 } else { 1567 conn = NULL; 1568 } 1569 1570 if (!conn) { 1571 err = cmd_complete(sk, hdev->id, MGMT_OP_UNPAIR_DEVICE, 0, 1572 &rp, sizeof(rp)); 1573 device_unpaired(hdev, &cp->addr.bdaddr, cp->addr.type, sk); 1574 goto unlock; 1575 } 1576 1577 cmd = mgmt_pending_add(sk, MGMT_OP_UNPAIR_DEVICE, hdev, cp, 1578 sizeof(*cp)); 1579 if (!cmd) { 1580 err = -ENOMEM; 1581 goto unlock; 1582 } 1583 1584 dc.handle = cpu_to_le16(conn->handle); 1585 dc.reason = 0x13; /* Remote User Terminated Connection */ 1586 err = hci_send_cmd(hdev, HCI_OP_DISCONNECT, sizeof(dc), &dc); 1587 if (err < 0) 1588 mgmt_pending_remove(cmd); 1589 1590 unlock: 1591 hci_dev_unlock(hdev); 1592 return err; 1593 } 1594 1595 static int disconnect(struct sock *sk, struct hci_dev *hdev, void *data, 1596 u16 len) 1597 { 1598 struct mgmt_cp_disconnect *cp = data; 1599 struct hci_cp_disconnect dc; 1600 struct pending_cmd *cmd; 1601 struct hci_conn *conn; 1602 int err; 1603 1604 BT_DBG(""); 1605 1606 hci_dev_lock(hdev); 1607 1608 if (!test_bit(HCI_UP, &hdev->flags)) { 1609 err = cmd_status(sk, hdev->id, MGMT_OP_DISCONNECT, 1610 MGMT_STATUS_NOT_POWERED); 1611 goto failed; 1612 } 1613 1614 if (mgmt_pending_find(MGMT_OP_DISCONNECT, hdev)) { 1615 err = cmd_status(sk, hdev->id, MGMT_OP_DISCONNECT, 1616 MGMT_STATUS_BUSY); 1617 goto failed; 1618 } 1619 1620 if (cp->addr.type == BDADDR_BREDR) 1621 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, 1622 &cp->addr.bdaddr); 1623 else 1624 conn = hci_conn_hash_lookup_ba(hdev, LE_LINK, &cp->addr.bdaddr); 1625 1626 if (!conn || conn->state == BT_OPEN || conn->state == BT_CLOSED) { 1627 err = cmd_status(sk, hdev->id, MGMT_OP_DISCONNECT, 1628 MGMT_STATUS_NOT_CONNECTED); 1629 goto failed; 1630 } 1631 1632 cmd = mgmt_pending_add(sk, MGMT_OP_DISCONNECT, hdev, data, len); 1633 if (!cmd) { 1634 err = -ENOMEM; 1635 goto failed; 1636 } 1637 1638 dc.handle = cpu_to_le16(conn->handle); 1639 dc.reason = HCI_ERROR_REMOTE_USER_TERM; 1640 1641 err = hci_send_cmd(hdev, HCI_OP_DISCONNECT, sizeof(dc), &dc); 1642 if (err < 0) 1643 mgmt_pending_remove(cmd); 1644 1645 failed: 1646 hci_dev_unlock(hdev); 1647 return err; 1648 } 1649 1650 static u8 link_to_bdaddr(u8 link_type, u8 addr_type) 1651 { 1652 switch (link_type) { 1653 case LE_LINK: 1654 switch (addr_type) { 1655 case ADDR_LE_DEV_PUBLIC: 1656 return BDADDR_LE_PUBLIC; 1657 1658 default: 1659 /* Fallback to LE Random address type */ 1660 return BDADDR_LE_RANDOM; 1661 } 1662 1663 default: 1664 /* Fallback to BR/EDR type */ 1665 return BDADDR_BREDR; 1666 } 1667 } 1668 1669 static int get_connections(struct sock *sk, struct hci_dev *hdev, void *data, 1670 u16 data_len) 1671 { 1672 struct mgmt_rp_get_connections *rp; 1673 struct hci_conn *c; 1674 size_t rp_len; 1675 int err; 1676 u16 i; 1677 1678 BT_DBG(""); 1679 1680 hci_dev_lock(hdev); 1681 1682 if (!hdev_is_powered(hdev)) { 1683 err = cmd_status(sk, hdev->id, MGMT_OP_GET_CONNECTIONS, 1684 MGMT_STATUS_NOT_POWERED); 1685 goto unlock; 1686 } 1687 1688 i = 0; 1689 list_for_each_entry(c, &hdev->conn_hash.list, list) { 1690 if (test_bit(HCI_CONN_MGMT_CONNECTED, &c->flags)) 1691 i++; 1692 } 1693 1694 rp_len = sizeof(*rp) + (i * sizeof(struct mgmt_addr_info)); 1695 rp = kmalloc(rp_len, GFP_KERNEL); 1696 if (!rp) { 1697 err = -ENOMEM; 1698 goto unlock; 1699 } 1700 1701 i = 0; 1702 list_for_each_entry(c, &hdev->conn_hash.list, list) { 1703 if (!test_bit(HCI_CONN_MGMT_CONNECTED, &c->flags)) 1704 continue; 1705 bacpy(&rp->addr[i].bdaddr, &c->dst); 1706 rp->addr[i].type = link_to_bdaddr(c->type, c->dst_type); 1707 if (c->type == SCO_LINK || c->type == ESCO_LINK) 1708 continue; 1709 i++; 1710 } 1711 1712 rp->conn_count = cpu_to_le16(i); 1713 1714 /* Recalculate length in case of filtered SCO connections, etc */ 1715 rp_len = sizeof(*rp) + (i * sizeof(struct mgmt_addr_info)); 1716 1717 err = cmd_complete(sk, hdev->id, MGMT_OP_GET_CONNECTIONS, 0, rp, 1718 rp_len); 1719 1720 kfree(rp); 1721 1722 unlock: 1723 hci_dev_unlock(hdev); 1724 return err; 1725 } 1726 1727 static int send_pin_code_neg_reply(struct sock *sk, struct hci_dev *hdev, 1728 struct mgmt_cp_pin_code_neg_reply *cp) 1729 { 1730 struct pending_cmd *cmd; 1731 int err; 1732 1733 cmd = mgmt_pending_add(sk, MGMT_OP_PIN_CODE_NEG_REPLY, hdev, cp, 1734 sizeof(*cp)); 1735 if (!cmd) 1736 return -ENOMEM; 1737 1738 err = hci_send_cmd(hdev, HCI_OP_PIN_CODE_NEG_REPLY, 1739 sizeof(cp->addr.bdaddr), &cp->addr.bdaddr); 1740 if (err < 0) 1741 mgmt_pending_remove(cmd); 1742 1743 return err; 1744 } 1745 1746 static int pin_code_reply(struct sock *sk, struct hci_dev *hdev, void *data, 1747 u16 len) 1748 { 1749 struct hci_conn *conn; 1750 struct mgmt_cp_pin_code_reply *cp = data; 1751 struct hci_cp_pin_code_reply reply; 1752 struct pending_cmd *cmd; 1753 int err; 1754 1755 BT_DBG(""); 1756 1757 hci_dev_lock(hdev); 1758 1759 if (!hdev_is_powered(hdev)) { 1760 err = cmd_status(sk, hdev->id, MGMT_OP_PIN_CODE_REPLY, 1761 MGMT_STATUS_NOT_POWERED); 1762 goto failed; 1763 } 1764 1765 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->addr.bdaddr); 1766 if (!conn) { 1767 err = cmd_status(sk, hdev->id, MGMT_OP_PIN_CODE_REPLY, 1768 MGMT_STATUS_NOT_CONNECTED); 1769 goto failed; 1770 } 1771 1772 if (conn->pending_sec_level == BT_SECURITY_HIGH && cp->pin_len != 16) { 1773 struct mgmt_cp_pin_code_neg_reply ncp; 1774 1775 memcpy(&ncp.addr, &cp->addr, sizeof(ncp.addr)); 1776 1777 BT_ERR("PIN code is not 16 bytes long"); 1778 1779 err = send_pin_code_neg_reply(sk, hdev, &ncp); 1780 if (err >= 0) 1781 err = cmd_status(sk, hdev->id, MGMT_OP_PIN_CODE_REPLY, 1782 MGMT_STATUS_INVALID_PARAMS); 1783 1784 goto failed; 1785 } 1786 1787 cmd = mgmt_pending_add(sk, MGMT_OP_PIN_CODE_REPLY, hdev, data, len); 1788 if (!cmd) { 1789 err = -ENOMEM; 1790 goto failed; 1791 } 1792 1793 bacpy(&reply.bdaddr, &cp->addr.bdaddr); 1794 reply.pin_len = cp->pin_len; 1795 memcpy(reply.pin_code, cp->pin_code, sizeof(reply.pin_code)); 1796 1797 err = hci_send_cmd(hdev, HCI_OP_PIN_CODE_REPLY, sizeof(reply), &reply); 1798 if (err < 0) 1799 mgmt_pending_remove(cmd); 1800 1801 failed: 1802 hci_dev_unlock(hdev); 1803 return err; 1804 } 1805 1806 static int set_io_capability(struct sock *sk, struct hci_dev *hdev, void *data, 1807 u16 len) 1808 { 1809 struct mgmt_cp_set_io_capability *cp = data; 1810 1811 BT_DBG(""); 1812 1813 hci_dev_lock(hdev); 1814 1815 hdev->io_capability = cp->io_capability; 1816 1817 BT_DBG("%s IO capability set to 0x%02x", hdev->name, 1818 hdev->io_capability); 1819 1820 hci_dev_unlock(hdev); 1821 1822 return cmd_complete(sk, hdev->id, MGMT_OP_SET_IO_CAPABILITY, 0, NULL, 1823 0); 1824 } 1825 1826 static struct pending_cmd *find_pairing(struct hci_conn *conn) 1827 { 1828 struct hci_dev *hdev = conn->hdev; 1829 struct pending_cmd *cmd; 1830 1831 list_for_each_entry(cmd, &hdev->mgmt_pending, list) { 1832 if (cmd->opcode != MGMT_OP_PAIR_DEVICE) 1833 continue; 1834 1835 if (cmd->user_data != conn) 1836 continue; 1837 1838 return cmd; 1839 } 1840 1841 return NULL; 1842 } 1843 1844 static void pairing_complete(struct pending_cmd *cmd, u8 status) 1845 { 1846 struct mgmt_rp_pair_device rp; 1847 struct hci_conn *conn = cmd->user_data; 1848 1849 bacpy(&rp.addr.bdaddr, &conn->dst); 1850 rp.addr.type = link_to_bdaddr(conn->type, conn->dst_type); 1851 1852 cmd_complete(cmd->sk, cmd->index, MGMT_OP_PAIR_DEVICE, status, 1853 &rp, sizeof(rp)); 1854 1855 /* So we don't get further callbacks for this connection */ 1856 conn->connect_cfm_cb = NULL; 1857 conn->security_cfm_cb = NULL; 1858 conn->disconn_cfm_cb = NULL; 1859 1860 hci_conn_put(conn); 1861 1862 mgmt_pending_remove(cmd); 1863 } 1864 1865 static void pairing_complete_cb(struct hci_conn *conn, u8 status) 1866 { 1867 struct pending_cmd *cmd; 1868 1869 BT_DBG("status %u", status); 1870 1871 cmd = find_pairing(conn); 1872 if (!cmd) 1873 BT_DBG("Unable to find a pending command"); 1874 else 1875 pairing_complete(cmd, mgmt_status(status)); 1876 } 1877 1878 static void le_connect_complete_cb(struct hci_conn *conn, u8 status) 1879 { 1880 struct pending_cmd *cmd; 1881 1882 BT_DBG("status %u", status); 1883 1884 if (!status) 1885 return; 1886 1887 cmd = find_pairing(conn); 1888 if (!cmd) 1889 BT_DBG("Unable to find a pending command"); 1890 else 1891 pairing_complete(cmd, mgmt_status(status)); 1892 } 1893 1894 static int pair_device(struct sock *sk, struct hci_dev *hdev, void *data, 1895 u16 len) 1896 { 1897 struct mgmt_cp_pair_device *cp = data; 1898 struct mgmt_rp_pair_device rp; 1899 struct pending_cmd *cmd; 1900 u8 sec_level, auth_type; 1901 struct hci_conn *conn; 1902 int err; 1903 1904 BT_DBG(""); 1905 1906 hci_dev_lock(hdev); 1907 1908 if (!hdev_is_powered(hdev)) { 1909 err = cmd_status(sk, hdev->id, MGMT_OP_PAIR_DEVICE, 1910 MGMT_STATUS_NOT_POWERED); 1911 goto unlock; 1912 } 1913 1914 sec_level = BT_SECURITY_MEDIUM; 1915 if (cp->io_cap == 0x03) 1916 auth_type = HCI_AT_DEDICATED_BONDING; 1917 else 1918 auth_type = HCI_AT_DEDICATED_BONDING_MITM; 1919 1920 if (cp->addr.type == BDADDR_BREDR) 1921 conn = hci_connect(hdev, ACL_LINK, &cp->addr.bdaddr, 1922 cp->addr.type, sec_level, auth_type); 1923 else 1924 conn = hci_connect(hdev, LE_LINK, &cp->addr.bdaddr, 1925 cp->addr.type, sec_level, auth_type); 1926 1927 memset(&rp, 0, sizeof(rp)); 1928 bacpy(&rp.addr.bdaddr, &cp->addr.bdaddr); 1929 rp.addr.type = cp->addr.type; 1930 1931 if (IS_ERR(conn)) { 1932 int status; 1933 1934 if (PTR_ERR(conn) == -EBUSY) 1935 status = MGMT_STATUS_BUSY; 1936 else 1937 status = MGMT_STATUS_CONNECT_FAILED; 1938 1939 err = cmd_complete(sk, hdev->id, MGMT_OP_PAIR_DEVICE, 1940 status, &rp, 1941 sizeof(rp)); 1942 goto unlock; 1943 } 1944 1945 if (conn->connect_cfm_cb) { 1946 hci_conn_put(conn); 1947 err = cmd_complete(sk, hdev->id, MGMT_OP_PAIR_DEVICE, 1948 MGMT_STATUS_BUSY, &rp, sizeof(rp)); 1949 goto unlock; 1950 } 1951 1952 cmd = mgmt_pending_add(sk, MGMT_OP_PAIR_DEVICE, hdev, data, len); 1953 if (!cmd) { 1954 err = -ENOMEM; 1955 hci_conn_put(conn); 1956 goto unlock; 1957 } 1958 1959 /* For LE, just connecting isn't a proof that the pairing finished */ 1960 if (cp->addr.type == BDADDR_BREDR) 1961 conn->connect_cfm_cb = pairing_complete_cb; 1962 else 1963 conn->connect_cfm_cb = le_connect_complete_cb; 1964 1965 conn->security_cfm_cb = pairing_complete_cb; 1966 conn->disconn_cfm_cb = pairing_complete_cb; 1967 conn->io_capability = cp->io_cap; 1968 cmd->user_data = conn; 1969 1970 if (conn->state == BT_CONNECTED && 1971 hci_conn_security(conn, sec_level, auth_type)) 1972 pairing_complete(cmd, 0); 1973 1974 err = 0; 1975 1976 unlock: 1977 hci_dev_unlock(hdev); 1978 return err; 1979 } 1980 1981 static int cancel_pair_device(struct sock *sk, struct hci_dev *hdev, void *data, 1982 u16 len) 1983 { 1984 struct mgmt_addr_info *addr = data; 1985 struct pending_cmd *cmd; 1986 struct hci_conn *conn; 1987 int err; 1988 1989 BT_DBG(""); 1990 1991 hci_dev_lock(hdev); 1992 1993 if (!hdev_is_powered(hdev)) { 1994 err = cmd_status(sk, hdev->id, MGMT_OP_CANCEL_PAIR_DEVICE, 1995 MGMT_STATUS_NOT_POWERED); 1996 goto unlock; 1997 } 1998 1999 cmd = mgmt_pending_find(MGMT_OP_PAIR_DEVICE, hdev); 2000 if (!cmd) { 2001 err = cmd_status(sk, hdev->id, MGMT_OP_CANCEL_PAIR_DEVICE, 2002 MGMT_STATUS_INVALID_PARAMS); 2003 goto unlock; 2004 } 2005 2006 conn = cmd->user_data; 2007 2008 if (bacmp(&addr->bdaddr, &conn->dst) != 0) { 2009 err = cmd_status(sk, hdev->id, MGMT_OP_CANCEL_PAIR_DEVICE, 2010 MGMT_STATUS_INVALID_PARAMS); 2011 goto unlock; 2012 } 2013 2014 pairing_complete(cmd, MGMT_STATUS_CANCELLED); 2015 2016 err = cmd_complete(sk, hdev->id, MGMT_OP_CANCEL_PAIR_DEVICE, 0, 2017 addr, sizeof(*addr)); 2018 unlock: 2019 hci_dev_unlock(hdev); 2020 return err; 2021 } 2022 2023 static int user_pairing_resp(struct sock *sk, struct hci_dev *hdev, 2024 bdaddr_t *bdaddr, u8 type, u16 mgmt_op, 2025 u16 hci_op, __le32 passkey) 2026 { 2027 struct pending_cmd *cmd; 2028 struct hci_conn *conn; 2029 int err; 2030 2031 hci_dev_lock(hdev); 2032 2033 if (!hdev_is_powered(hdev)) { 2034 err = cmd_status(sk, hdev->id, mgmt_op, 2035 MGMT_STATUS_NOT_POWERED); 2036 goto done; 2037 } 2038 2039 if (type == BDADDR_BREDR) 2040 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, bdaddr); 2041 else 2042 conn = hci_conn_hash_lookup_ba(hdev, LE_LINK, bdaddr); 2043 2044 if (!conn) { 2045 err = cmd_status(sk, hdev->id, mgmt_op, 2046 MGMT_STATUS_NOT_CONNECTED); 2047 goto done; 2048 } 2049 2050 if (type == BDADDR_LE_PUBLIC || type == BDADDR_LE_RANDOM) { 2051 /* Continue with pairing via SMP */ 2052 err = smp_user_confirm_reply(conn, mgmt_op, passkey); 2053 2054 if (!err) 2055 err = cmd_status(sk, hdev->id, mgmt_op, 2056 MGMT_STATUS_SUCCESS); 2057 else 2058 err = cmd_status(sk, hdev->id, mgmt_op, 2059 MGMT_STATUS_FAILED); 2060 2061 goto done; 2062 } 2063 2064 cmd = mgmt_pending_add(sk, mgmt_op, hdev, bdaddr, sizeof(*bdaddr)); 2065 if (!cmd) { 2066 err = -ENOMEM; 2067 goto done; 2068 } 2069 2070 /* Continue with pairing via HCI */ 2071 if (hci_op == HCI_OP_USER_PASSKEY_REPLY) { 2072 struct hci_cp_user_passkey_reply cp; 2073 2074 bacpy(&cp.bdaddr, bdaddr); 2075 cp.passkey = passkey; 2076 err = hci_send_cmd(hdev, hci_op, sizeof(cp), &cp); 2077 } else 2078 err = hci_send_cmd(hdev, hci_op, sizeof(*bdaddr), bdaddr); 2079 2080 if (err < 0) 2081 mgmt_pending_remove(cmd); 2082 2083 done: 2084 hci_dev_unlock(hdev); 2085 return err; 2086 } 2087 2088 static int pin_code_neg_reply(struct sock *sk, struct hci_dev *hdev, 2089 void *data, u16 len) 2090 { 2091 struct mgmt_cp_pin_code_neg_reply *cp = data; 2092 2093 BT_DBG(""); 2094 2095 return user_pairing_resp(sk, hdev, &cp->addr.bdaddr, cp->addr.type, 2096 MGMT_OP_PIN_CODE_NEG_REPLY, 2097 HCI_OP_PIN_CODE_NEG_REPLY, 0); 2098 } 2099 2100 static int user_confirm_reply(struct sock *sk, struct hci_dev *hdev, void *data, 2101 u16 len) 2102 { 2103 struct mgmt_cp_user_confirm_reply *cp = data; 2104 2105 BT_DBG(""); 2106 2107 if (len != sizeof(*cp)) 2108 return cmd_status(sk, hdev->id, MGMT_OP_USER_CONFIRM_REPLY, 2109 MGMT_STATUS_INVALID_PARAMS); 2110 2111 return user_pairing_resp(sk, hdev, &cp->addr.bdaddr, cp->addr.type, 2112 MGMT_OP_USER_CONFIRM_REPLY, 2113 HCI_OP_USER_CONFIRM_REPLY, 0); 2114 } 2115 2116 static int user_confirm_neg_reply(struct sock *sk, struct hci_dev *hdev, 2117 void *data, u16 len) 2118 { 2119 struct mgmt_cp_user_confirm_neg_reply *cp = data; 2120 2121 BT_DBG(""); 2122 2123 return user_pairing_resp(sk, hdev, &cp->addr.bdaddr, cp->addr.type, 2124 MGMT_OP_USER_CONFIRM_NEG_REPLY, 2125 HCI_OP_USER_CONFIRM_NEG_REPLY, 0); 2126 } 2127 2128 static int user_passkey_reply(struct sock *sk, struct hci_dev *hdev, void *data, 2129 u16 len) 2130 { 2131 struct mgmt_cp_user_passkey_reply *cp = data; 2132 2133 BT_DBG(""); 2134 2135 return user_pairing_resp(sk, hdev, &cp->addr.bdaddr, cp->addr.type, 2136 MGMT_OP_USER_PASSKEY_REPLY, 2137 HCI_OP_USER_PASSKEY_REPLY, cp->passkey); 2138 } 2139 2140 static int user_passkey_neg_reply(struct sock *sk, struct hci_dev *hdev, 2141 void *data, u16 len) 2142 { 2143 struct mgmt_cp_user_passkey_neg_reply *cp = data; 2144 2145 BT_DBG(""); 2146 2147 return user_pairing_resp(sk, hdev, &cp->addr.bdaddr, cp->addr.type, 2148 MGMT_OP_USER_PASSKEY_NEG_REPLY, 2149 HCI_OP_USER_PASSKEY_NEG_REPLY, 0); 2150 } 2151 2152 static int update_name(struct hci_dev *hdev, const char *name) 2153 { 2154 struct hci_cp_write_local_name cp; 2155 2156 memcpy(cp.name, name, sizeof(cp.name)); 2157 2158 return hci_send_cmd(hdev, HCI_OP_WRITE_LOCAL_NAME, sizeof(cp), &cp); 2159 } 2160 2161 static int set_local_name(struct sock *sk, struct hci_dev *hdev, void *data, 2162 u16 len) 2163 { 2164 struct mgmt_cp_set_local_name *cp = data; 2165 struct pending_cmd *cmd; 2166 int err; 2167 2168 BT_DBG(""); 2169 2170 hci_dev_lock(hdev); 2171 2172 memcpy(hdev->short_name, cp->short_name, sizeof(hdev->short_name)); 2173 2174 if (!hdev_is_powered(hdev)) { 2175 memcpy(hdev->dev_name, cp->name, sizeof(hdev->dev_name)); 2176 2177 err = cmd_complete(sk, hdev->id, MGMT_OP_SET_LOCAL_NAME, 0, 2178 data, len); 2179 if (err < 0) 2180 goto failed; 2181 2182 err = mgmt_event(MGMT_EV_LOCAL_NAME_CHANGED, hdev, data, len, 2183 sk); 2184 2185 goto failed; 2186 } 2187 2188 cmd = mgmt_pending_add(sk, MGMT_OP_SET_LOCAL_NAME, hdev, data, len); 2189 if (!cmd) { 2190 err = -ENOMEM; 2191 goto failed; 2192 } 2193 2194 err = update_name(hdev, cp->name); 2195 if (err < 0) 2196 mgmt_pending_remove(cmd); 2197 2198 failed: 2199 hci_dev_unlock(hdev); 2200 return err; 2201 } 2202 2203 static int read_local_oob_data(struct sock *sk, struct hci_dev *hdev, 2204 void *data, u16 data_len) 2205 { 2206 struct pending_cmd *cmd; 2207 int err; 2208 2209 BT_DBG("%s", hdev->name); 2210 2211 hci_dev_lock(hdev); 2212 2213 if (!hdev_is_powered(hdev)) { 2214 err = cmd_status(sk, hdev->id, MGMT_OP_READ_LOCAL_OOB_DATA, 2215 MGMT_STATUS_NOT_POWERED); 2216 goto unlock; 2217 } 2218 2219 if (!lmp_ssp_capable(hdev)) { 2220 err = cmd_status(sk, hdev->id, MGMT_OP_READ_LOCAL_OOB_DATA, 2221 MGMT_STATUS_NOT_SUPPORTED); 2222 goto unlock; 2223 } 2224 2225 if (mgmt_pending_find(MGMT_OP_READ_LOCAL_OOB_DATA, hdev)) { 2226 err = cmd_status(sk, hdev->id, MGMT_OP_READ_LOCAL_OOB_DATA, 2227 MGMT_STATUS_BUSY); 2228 goto unlock; 2229 } 2230 2231 cmd = mgmt_pending_add(sk, MGMT_OP_READ_LOCAL_OOB_DATA, hdev, NULL, 0); 2232 if (!cmd) { 2233 err = -ENOMEM; 2234 goto unlock; 2235 } 2236 2237 err = hci_send_cmd(hdev, HCI_OP_READ_LOCAL_OOB_DATA, 0, NULL); 2238 if (err < 0) 2239 mgmt_pending_remove(cmd); 2240 2241 unlock: 2242 hci_dev_unlock(hdev); 2243 return err; 2244 } 2245 2246 static int add_remote_oob_data(struct sock *sk, struct hci_dev *hdev, 2247 void *data, u16 len) 2248 { 2249 struct mgmt_cp_add_remote_oob_data *cp = data; 2250 u8 status; 2251 int err; 2252 2253 BT_DBG("%s ", hdev->name); 2254 2255 hci_dev_lock(hdev); 2256 2257 if (!hdev_is_powered(hdev)) { 2258 err = cmd_complete(sk, hdev->id, MGMT_OP_ADD_REMOTE_OOB_DATA, 2259 MGMT_STATUS_NOT_POWERED, &cp->addr, 2260 sizeof(cp->addr)); 2261 goto unlock; 2262 } 2263 2264 err = hci_add_remote_oob_data(hdev, &cp->addr.bdaddr, cp->hash, 2265 cp->randomizer); 2266 if (err < 0) 2267 status = MGMT_STATUS_FAILED; 2268 else 2269 status = 0; 2270 2271 err = cmd_complete(sk, hdev->id, MGMT_OP_ADD_REMOTE_OOB_DATA, status, 2272 &cp->addr, sizeof(cp->addr)); 2273 2274 unlock: 2275 hci_dev_unlock(hdev); 2276 return err; 2277 } 2278 2279 static int remove_remote_oob_data(struct sock *sk, struct hci_dev *hdev, 2280 void *data, u16 len) 2281 { 2282 struct mgmt_cp_remove_remote_oob_data *cp = data; 2283 u8 status; 2284 int err; 2285 2286 BT_DBG("%s", hdev->name); 2287 2288 hci_dev_lock(hdev); 2289 2290 if (!hdev_is_powered(hdev)) { 2291 err = cmd_complete(sk, hdev->id, 2292 MGMT_OP_REMOVE_REMOTE_OOB_DATA, 2293 MGMT_STATUS_NOT_POWERED, &cp->addr, 2294 sizeof(cp->addr)); 2295 goto unlock; 2296 } 2297 2298 err = hci_remove_remote_oob_data(hdev, &cp->addr.bdaddr); 2299 if (err < 0) 2300 status = MGMT_STATUS_INVALID_PARAMS; 2301 else 2302 status = 0; 2303 2304 err = cmd_complete(sk, hdev->id, MGMT_OP_REMOVE_REMOTE_OOB_DATA, 2305 status, &cp->addr, sizeof(cp->addr)); 2306 2307 unlock: 2308 hci_dev_unlock(hdev); 2309 return err; 2310 } 2311 2312 int mgmt_interleaved_discovery(struct hci_dev *hdev) 2313 { 2314 int err; 2315 2316 BT_DBG("%s", hdev->name); 2317 2318 hci_dev_lock(hdev); 2319 2320 err = hci_do_inquiry(hdev, INQUIRY_LEN_BREDR_LE); 2321 if (err < 0) 2322 hci_discovery_set_state(hdev, DISCOVERY_STOPPED); 2323 2324 hci_dev_unlock(hdev); 2325 2326 return err; 2327 } 2328 2329 static int start_discovery(struct sock *sk, struct hci_dev *hdev, 2330 void *data, u16 len) 2331 { 2332 struct mgmt_cp_start_discovery *cp = data; 2333 struct pending_cmd *cmd; 2334 int err; 2335 2336 BT_DBG("%s", hdev->name); 2337 2338 hci_dev_lock(hdev); 2339 2340 if (!hdev_is_powered(hdev)) { 2341 err = cmd_status(sk, hdev->id, MGMT_OP_START_DISCOVERY, 2342 MGMT_STATUS_NOT_POWERED); 2343 goto failed; 2344 } 2345 2346 if (test_bit(HCI_PERIODIC_INQ, &hdev->dev_flags)) { 2347 err = cmd_status(sk, hdev->id, MGMT_OP_START_DISCOVERY, 2348 MGMT_STATUS_BUSY); 2349 goto failed; 2350 } 2351 2352 if (hdev->discovery.state != DISCOVERY_STOPPED) { 2353 err = cmd_status(sk, hdev->id, MGMT_OP_START_DISCOVERY, 2354 MGMT_STATUS_BUSY); 2355 goto failed; 2356 } 2357 2358 cmd = mgmt_pending_add(sk, MGMT_OP_START_DISCOVERY, hdev, NULL, 0); 2359 if (!cmd) { 2360 err = -ENOMEM; 2361 goto failed; 2362 } 2363 2364 hdev->discovery.type = cp->type; 2365 2366 switch (hdev->discovery.type) { 2367 case DISCOV_TYPE_BREDR: 2368 if (lmp_bredr_capable(hdev)) 2369 err = hci_do_inquiry(hdev, INQUIRY_LEN_BREDR); 2370 else 2371 err = -ENOTSUPP; 2372 break; 2373 2374 case DISCOV_TYPE_LE: 2375 if (lmp_host_le_capable(hdev)) 2376 err = hci_le_scan(hdev, LE_SCAN_TYPE, LE_SCAN_INT, 2377 LE_SCAN_WIN, LE_SCAN_TIMEOUT_LE_ONLY); 2378 else 2379 err = -ENOTSUPP; 2380 break; 2381 2382 case DISCOV_TYPE_INTERLEAVED: 2383 if (lmp_host_le_capable(hdev) && lmp_bredr_capable(hdev)) 2384 err = hci_le_scan(hdev, LE_SCAN_TYPE, LE_SCAN_INT, 2385 LE_SCAN_WIN, 2386 LE_SCAN_TIMEOUT_BREDR_LE); 2387 else 2388 err = -ENOTSUPP; 2389 break; 2390 2391 default: 2392 err = -EINVAL; 2393 } 2394 2395 if (err < 0) 2396 mgmt_pending_remove(cmd); 2397 else 2398 hci_discovery_set_state(hdev, DISCOVERY_STARTING); 2399 2400 failed: 2401 hci_dev_unlock(hdev); 2402 return err; 2403 } 2404 2405 static int stop_discovery(struct sock *sk, struct hci_dev *hdev, void *data, 2406 u16 len) 2407 { 2408 struct mgmt_cp_stop_discovery *mgmt_cp = data; 2409 struct pending_cmd *cmd; 2410 struct hci_cp_remote_name_req_cancel cp; 2411 struct inquiry_entry *e; 2412 int err; 2413 2414 BT_DBG("%s", hdev->name); 2415 2416 hci_dev_lock(hdev); 2417 2418 if (!hci_discovery_active(hdev)) { 2419 err = cmd_complete(sk, hdev->id, MGMT_OP_STOP_DISCOVERY, 2420 MGMT_STATUS_REJECTED, &mgmt_cp->type, 2421 sizeof(mgmt_cp->type)); 2422 goto unlock; 2423 } 2424 2425 if (hdev->discovery.type != mgmt_cp->type) { 2426 err = cmd_complete(sk, hdev->id, MGMT_OP_STOP_DISCOVERY, 2427 MGMT_STATUS_INVALID_PARAMS, &mgmt_cp->type, 2428 sizeof(mgmt_cp->type)); 2429 goto unlock; 2430 } 2431 2432 cmd = mgmt_pending_add(sk, MGMT_OP_STOP_DISCOVERY, hdev, NULL, 0); 2433 if (!cmd) { 2434 err = -ENOMEM; 2435 goto unlock; 2436 } 2437 2438 switch (hdev->discovery.state) { 2439 case DISCOVERY_FINDING: 2440 if (test_bit(HCI_INQUIRY, &hdev->flags)) 2441 err = hci_cancel_inquiry(hdev); 2442 else 2443 err = hci_cancel_le_scan(hdev); 2444 2445 break; 2446 2447 case DISCOVERY_RESOLVING: 2448 e = hci_inquiry_cache_lookup_resolve(hdev, BDADDR_ANY, 2449 NAME_PENDING); 2450 if (!e) { 2451 mgmt_pending_remove(cmd); 2452 err = cmd_complete(sk, hdev->id, 2453 MGMT_OP_STOP_DISCOVERY, 0, 2454 &mgmt_cp->type, 2455 sizeof(mgmt_cp->type)); 2456 hci_discovery_set_state(hdev, DISCOVERY_STOPPED); 2457 goto unlock; 2458 } 2459 2460 bacpy(&cp.bdaddr, &e->data.bdaddr); 2461 err = hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ_CANCEL, 2462 sizeof(cp), &cp); 2463 2464 break; 2465 2466 default: 2467 BT_DBG("unknown discovery state %u", hdev->discovery.state); 2468 err = -EFAULT; 2469 } 2470 2471 if (err < 0) 2472 mgmt_pending_remove(cmd); 2473 else 2474 hci_discovery_set_state(hdev, DISCOVERY_STOPPING); 2475 2476 unlock: 2477 hci_dev_unlock(hdev); 2478 return err; 2479 } 2480 2481 static int confirm_name(struct sock *sk, struct hci_dev *hdev, void *data, 2482 u16 len) 2483 { 2484 struct mgmt_cp_confirm_name *cp = data; 2485 struct inquiry_entry *e; 2486 int err; 2487 2488 BT_DBG("%s", hdev->name); 2489 2490 hci_dev_lock(hdev); 2491 2492 if (!hci_discovery_active(hdev)) { 2493 err = cmd_status(sk, hdev->id, MGMT_OP_CONFIRM_NAME, 2494 MGMT_STATUS_FAILED); 2495 goto failed; 2496 } 2497 2498 e = hci_inquiry_cache_lookup_unknown(hdev, &cp->addr.bdaddr); 2499 if (!e) { 2500 err = cmd_status(sk, hdev->id, MGMT_OP_CONFIRM_NAME, 2501 MGMT_STATUS_INVALID_PARAMS); 2502 goto failed; 2503 } 2504 2505 if (cp->name_known) { 2506 e->name_state = NAME_KNOWN; 2507 list_del(&e->list); 2508 } else { 2509 e->name_state = NAME_NEEDED; 2510 hci_inquiry_cache_update_resolve(hdev, e); 2511 } 2512 2513 err = 0; 2514 2515 failed: 2516 hci_dev_unlock(hdev); 2517 return err; 2518 } 2519 2520 static int block_device(struct sock *sk, struct hci_dev *hdev, void *data, 2521 u16 len) 2522 { 2523 struct mgmt_cp_block_device *cp = data; 2524 u8 status; 2525 int err; 2526 2527 BT_DBG("%s", hdev->name); 2528 2529 hci_dev_lock(hdev); 2530 2531 err = hci_blacklist_add(hdev, &cp->addr.bdaddr, cp->addr.type); 2532 if (err < 0) 2533 status = MGMT_STATUS_FAILED; 2534 else 2535 status = 0; 2536 2537 err = cmd_complete(sk, hdev->id, MGMT_OP_BLOCK_DEVICE, status, 2538 &cp->addr, sizeof(cp->addr)); 2539 2540 hci_dev_unlock(hdev); 2541 2542 return err; 2543 } 2544 2545 static int unblock_device(struct sock *sk, struct hci_dev *hdev, void *data, 2546 u16 len) 2547 { 2548 struct mgmt_cp_unblock_device *cp = data; 2549 u8 status; 2550 int err; 2551 2552 BT_DBG("%s", hdev->name); 2553 2554 hci_dev_lock(hdev); 2555 2556 err = hci_blacklist_del(hdev, &cp->addr.bdaddr, cp->addr.type); 2557 if (err < 0) 2558 status = MGMT_STATUS_INVALID_PARAMS; 2559 else 2560 status = 0; 2561 2562 err = cmd_complete(sk, hdev->id, MGMT_OP_UNBLOCK_DEVICE, status, 2563 &cp->addr, sizeof(cp->addr)); 2564 2565 hci_dev_unlock(hdev); 2566 2567 return err; 2568 } 2569 2570 static int set_device_id(struct sock *sk, struct hci_dev *hdev, void *data, 2571 u16 len) 2572 { 2573 struct mgmt_cp_set_device_id *cp = data; 2574 int err; 2575 __u16 source; 2576 2577 BT_DBG("%s", hdev->name); 2578 2579 source = __le16_to_cpu(cp->source); 2580 2581 if (source > 0x0002) 2582 return cmd_status(sk, hdev->id, MGMT_OP_SET_DEVICE_ID, 2583 MGMT_STATUS_INVALID_PARAMS); 2584 2585 hci_dev_lock(hdev); 2586 2587 hdev->devid_source = source; 2588 hdev->devid_vendor = __le16_to_cpu(cp->vendor); 2589 hdev->devid_product = __le16_to_cpu(cp->product); 2590 hdev->devid_version = __le16_to_cpu(cp->version); 2591 2592 err = cmd_complete(sk, hdev->id, MGMT_OP_SET_DEVICE_ID, 0, NULL, 0); 2593 2594 update_eir(hdev); 2595 2596 hci_dev_unlock(hdev); 2597 2598 return err; 2599 } 2600 2601 static int set_fast_connectable(struct sock *sk, struct hci_dev *hdev, 2602 void *data, u16 len) 2603 { 2604 struct mgmt_mode *cp = data; 2605 struct hci_cp_write_page_scan_activity acp; 2606 u8 type; 2607 int err; 2608 2609 BT_DBG("%s", hdev->name); 2610 2611 if (!lmp_bredr_capable(hdev)) 2612 return cmd_status(sk, hdev->id, MGMT_OP_SET_FAST_CONNECTABLE, 2613 MGMT_STATUS_NOT_SUPPORTED); 2614 2615 if (!hdev_is_powered(hdev)) 2616 return cmd_status(sk, hdev->id, MGMT_OP_SET_FAST_CONNECTABLE, 2617 MGMT_STATUS_NOT_POWERED); 2618 2619 if (!test_bit(HCI_CONNECTABLE, &hdev->dev_flags)) 2620 return cmd_status(sk, hdev->id, MGMT_OP_SET_FAST_CONNECTABLE, 2621 MGMT_STATUS_REJECTED); 2622 2623 hci_dev_lock(hdev); 2624 2625 if (cp->val) { 2626 type = PAGE_SCAN_TYPE_INTERLACED; 2627 2628 /* 160 msec page scan interval */ 2629 acp.interval = __constant_cpu_to_le16(0x0100); 2630 } else { 2631 type = PAGE_SCAN_TYPE_STANDARD; /* default */ 2632 2633 /* default 1.28 sec page scan */ 2634 acp.interval = __constant_cpu_to_le16(0x0800); 2635 } 2636 2637 /* default 11.25 msec page scan window */ 2638 acp.window = __constant_cpu_to_le16(0x0012); 2639 2640 err = hci_send_cmd(hdev, HCI_OP_WRITE_PAGE_SCAN_ACTIVITY, sizeof(acp), 2641 &acp); 2642 if (err < 0) { 2643 err = cmd_status(sk, hdev->id, MGMT_OP_SET_FAST_CONNECTABLE, 2644 MGMT_STATUS_FAILED); 2645 goto done; 2646 } 2647 2648 err = hci_send_cmd(hdev, HCI_OP_WRITE_PAGE_SCAN_TYPE, 1, &type); 2649 if (err < 0) { 2650 err = cmd_status(sk, hdev->id, MGMT_OP_SET_FAST_CONNECTABLE, 2651 MGMT_STATUS_FAILED); 2652 goto done; 2653 } 2654 2655 err = cmd_complete(sk, hdev->id, MGMT_OP_SET_FAST_CONNECTABLE, 0, 2656 NULL, 0); 2657 done: 2658 hci_dev_unlock(hdev); 2659 return err; 2660 } 2661 2662 static int load_long_term_keys(struct sock *sk, struct hci_dev *hdev, 2663 void *cp_data, u16 len) 2664 { 2665 struct mgmt_cp_load_long_term_keys *cp = cp_data; 2666 u16 key_count, expected_len; 2667 int i; 2668 2669 key_count = __le16_to_cpu(cp->key_count); 2670 2671 expected_len = sizeof(*cp) + key_count * 2672 sizeof(struct mgmt_ltk_info); 2673 if (expected_len != len) { 2674 BT_ERR("load_keys: expected %u bytes, got %u bytes", 2675 len, expected_len); 2676 return cmd_status(sk, hdev->id, MGMT_OP_LOAD_LONG_TERM_KEYS, 2677 EINVAL); 2678 } 2679 2680 BT_DBG("%s key_count %u", hdev->name, key_count); 2681 2682 hci_dev_lock(hdev); 2683 2684 hci_smp_ltks_clear(hdev); 2685 2686 for (i = 0; i < key_count; i++) { 2687 struct mgmt_ltk_info *key = &cp->keys[i]; 2688 u8 type; 2689 2690 if (key->master) 2691 type = HCI_SMP_LTK; 2692 else 2693 type = HCI_SMP_LTK_SLAVE; 2694 2695 hci_add_ltk(hdev, &key->addr.bdaddr, 2696 bdaddr_to_le(key->addr.type), 2697 type, 0, key->authenticated, key->val, 2698 key->enc_size, key->ediv, key->rand); 2699 } 2700 2701 hci_dev_unlock(hdev); 2702 2703 return 0; 2704 } 2705 2706 static const struct mgmt_handler { 2707 int (*func) (struct sock *sk, struct hci_dev *hdev, void *data, 2708 u16 data_len); 2709 bool var_len; 2710 size_t data_len; 2711 } mgmt_handlers[] = { 2712 { NULL }, /* 0x0000 (no command) */ 2713 { read_version, false, MGMT_READ_VERSION_SIZE }, 2714 { read_commands, false, MGMT_READ_COMMANDS_SIZE }, 2715 { read_index_list, false, MGMT_READ_INDEX_LIST_SIZE }, 2716 { read_controller_info, false, MGMT_READ_INFO_SIZE }, 2717 { set_powered, false, MGMT_SETTING_SIZE }, 2718 { set_discoverable, false, MGMT_SET_DISCOVERABLE_SIZE }, 2719 { set_connectable, false, MGMT_SETTING_SIZE }, 2720 { set_fast_connectable, false, MGMT_SETTING_SIZE }, 2721 { set_pairable, false, MGMT_SETTING_SIZE }, 2722 { set_link_security, false, MGMT_SETTING_SIZE }, 2723 { set_ssp, false, MGMT_SETTING_SIZE }, 2724 { set_hs, false, MGMT_SETTING_SIZE }, 2725 { set_le, false, MGMT_SETTING_SIZE }, 2726 { set_dev_class, false, MGMT_SET_DEV_CLASS_SIZE }, 2727 { set_local_name, false, MGMT_SET_LOCAL_NAME_SIZE }, 2728 { add_uuid, false, MGMT_ADD_UUID_SIZE }, 2729 { remove_uuid, false, MGMT_REMOVE_UUID_SIZE }, 2730 { load_link_keys, true, MGMT_LOAD_LINK_KEYS_SIZE }, 2731 { load_long_term_keys, true, MGMT_LOAD_LONG_TERM_KEYS_SIZE }, 2732 { disconnect, false, MGMT_DISCONNECT_SIZE }, 2733 { get_connections, false, MGMT_GET_CONNECTIONS_SIZE }, 2734 { pin_code_reply, false, MGMT_PIN_CODE_REPLY_SIZE }, 2735 { pin_code_neg_reply, false, MGMT_PIN_CODE_NEG_REPLY_SIZE }, 2736 { set_io_capability, false, MGMT_SET_IO_CAPABILITY_SIZE }, 2737 { pair_device, false, MGMT_PAIR_DEVICE_SIZE }, 2738 { cancel_pair_device, false, MGMT_CANCEL_PAIR_DEVICE_SIZE }, 2739 { unpair_device, false, MGMT_UNPAIR_DEVICE_SIZE }, 2740 { user_confirm_reply, false, MGMT_USER_CONFIRM_REPLY_SIZE }, 2741 { user_confirm_neg_reply, false, MGMT_USER_CONFIRM_NEG_REPLY_SIZE }, 2742 { user_passkey_reply, false, MGMT_USER_PASSKEY_REPLY_SIZE }, 2743 { user_passkey_neg_reply, false, MGMT_USER_PASSKEY_NEG_REPLY_SIZE }, 2744 { read_local_oob_data, false, MGMT_READ_LOCAL_OOB_DATA_SIZE }, 2745 { add_remote_oob_data, false, MGMT_ADD_REMOTE_OOB_DATA_SIZE }, 2746 { remove_remote_oob_data, false, MGMT_REMOVE_REMOTE_OOB_DATA_SIZE }, 2747 { start_discovery, false, MGMT_START_DISCOVERY_SIZE }, 2748 { stop_discovery, false, MGMT_STOP_DISCOVERY_SIZE }, 2749 { confirm_name, false, MGMT_CONFIRM_NAME_SIZE }, 2750 { block_device, false, MGMT_BLOCK_DEVICE_SIZE }, 2751 { unblock_device, false, MGMT_UNBLOCK_DEVICE_SIZE }, 2752 { set_device_id, false, MGMT_SET_DEVICE_ID_SIZE }, 2753 }; 2754 2755 2756 int mgmt_control(struct sock *sk, struct msghdr *msg, size_t msglen) 2757 { 2758 void *buf; 2759 u8 *cp; 2760 struct mgmt_hdr *hdr; 2761 u16 opcode, index, len; 2762 struct hci_dev *hdev = NULL; 2763 const struct mgmt_handler *handler; 2764 int err; 2765 2766 BT_DBG("got %zu bytes", msglen); 2767 2768 if (msglen < sizeof(*hdr)) 2769 return -EINVAL; 2770 2771 buf = kmalloc(msglen, GFP_KERNEL); 2772 if (!buf) 2773 return -ENOMEM; 2774 2775 if (memcpy_fromiovec(buf, msg->msg_iov, msglen)) { 2776 err = -EFAULT; 2777 goto done; 2778 } 2779 2780 hdr = buf; 2781 opcode = __le16_to_cpu(hdr->opcode); 2782 index = __le16_to_cpu(hdr->index); 2783 len = __le16_to_cpu(hdr->len); 2784 2785 if (len != msglen - sizeof(*hdr)) { 2786 err = -EINVAL; 2787 goto done; 2788 } 2789 2790 if (index != MGMT_INDEX_NONE) { 2791 hdev = hci_dev_get(index); 2792 if (!hdev) { 2793 err = cmd_status(sk, index, opcode, 2794 MGMT_STATUS_INVALID_INDEX); 2795 goto done; 2796 } 2797 } 2798 2799 if (opcode >= ARRAY_SIZE(mgmt_handlers) || 2800 mgmt_handlers[opcode].func == NULL) { 2801 BT_DBG("Unknown op %u", opcode); 2802 err = cmd_status(sk, index, opcode, 2803 MGMT_STATUS_UNKNOWN_COMMAND); 2804 goto done; 2805 } 2806 2807 if ((hdev && opcode < MGMT_OP_READ_INFO) || 2808 (!hdev && opcode >= MGMT_OP_READ_INFO)) { 2809 err = cmd_status(sk, index, opcode, 2810 MGMT_STATUS_INVALID_INDEX); 2811 goto done; 2812 } 2813 2814 handler = &mgmt_handlers[opcode]; 2815 2816 if ((handler->var_len && len < handler->data_len) || 2817 (!handler->var_len && len != handler->data_len)) { 2818 err = cmd_status(sk, index, opcode, 2819 MGMT_STATUS_INVALID_PARAMS); 2820 goto done; 2821 } 2822 2823 if (hdev) 2824 mgmt_init_hdev(sk, hdev); 2825 2826 cp = buf + sizeof(*hdr); 2827 2828 err = handler->func(sk, hdev, cp, len); 2829 if (err < 0) 2830 goto done; 2831 2832 err = msglen; 2833 2834 done: 2835 if (hdev) 2836 hci_dev_put(hdev); 2837 2838 kfree(buf); 2839 return err; 2840 } 2841 2842 static void cmd_status_rsp(struct pending_cmd *cmd, void *data) 2843 { 2844 u8 *status = data; 2845 2846 cmd_status(cmd->sk, cmd->index, cmd->opcode, *status); 2847 mgmt_pending_remove(cmd); 2848 } 2849 2850 int mgmt_index_added(struct hci_dev *hdev) 2851 { 2852 if (!mgmt_valid_hdev(hdev)) 2853 return -ENOTSUPP; 2854 2855 return mgmt_event(MGMT_EV_INDEX_ADDED, hdev, NULL, 0, NULL); 2856 } 2857 2858 int mgmt_index_removed(struct hci_dev *hdev) 2859 { 2860 u8 status = MGMT_STATUS_INVALID_INDEX; 2861 2862 if (!mgmt_valid_hdev(hdev)) 2863 return -ENOTSUPP; 2864 2865 mgmt_pending_foreach(0, hdev, cmd_status_rsp, &status); 2866 2867 return mgmt_event(MGMT_EV_INDEX_REMOVED, hdev, NULL, 0, NULL); 2868 } 2869 2870 struct cmd_lookup { 2871 struct sock *sk; 2872 struct hci_dev *hdev; 2873 u8 mgmt_status; 2874 }; 2875 2876 static void settings_rsp(struct pending_cmd *cmd, void *data) 2877 { 2878 struct cmd_lookup *match = data; 2879 2880 send_settings_rsp(cmd->sk, cmd->opcode, match->hdev); 2881 2882 list_del(&cmd->list); 2883 2884 if (match->sk == NULL) { 2885 match->sk = cmd->sk; 2886 sock_hold(match->sk); 2887 } 2888 2889 mgmt_pending_free(cmd); 2890 } 2891 2892 static int set_bredr_scan(struct hci_dev *hdev) 2893 { 2894 u8 scan = 0; 2895 2896 if (test_bit(HCI_CONNECTABLE, &hdev->dev_flags)) 2897 scan |= SCAN_PAGE; 2898 if (test_bit(HCI_DISCOVERABLE, &hdev->dev_flags)) 2899 scan |= SCAN_INQUIRY; 2900 2901 if (!scan) 2902 return 0; 2903 2904 return hci_send_cmd(hdev, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan); 2905 } 2906 2907 int mgmt_powered(struct hci_dev *hdev, u8 powered) 2908 { 2909 struct cmd_lookup match = { NULL, hdev }; 2910 int err; 2911 2912 if (!test_bit(HCI_MGMT, &hdev->dev_flags)) 2913 return 0; 2914 2915 mgmt_pending_foreach(MGMT_OP_SET_POWERED, hdev, settings_rsp, &match); 2916 2917 if (powered) { 2918 if (test_bit(HCI_SSP_ENABLED, &hdev->dev_flags) && 2919 !lmp_host_ssp_capable(hdev)) { 2920 u8 ssp = 1; 2921 2922 hci_send_cmd(hdev, HCI_OP_WRITE_SSP_MODE, 1, &ssp); 2923 } 2924 2925 if (test_bit(HCI_LE_ENABLED, &hdev->dev_flags)) { 2926 struct hci_cp_write_le_host_supported cp; 2927 2928 cp.le = 1; 2929 cp.simul = lmp_le_br_capable(hdev); 2930 2931 /* Check first if we already have the right 2932 * host state (host features set) 2933 */ 2934 if (cp.le != lmp_host_le_capable(hdev) || 2935 cp.simul != lmp_host_le_br_capable(hdev)) 2936 hci_send_cmd(hdev, 2937 HCI_OP_WRITE_LE_HOST_SUPPORTED, 2938 sizeof(cp), &cp); 2939 } 2940 2941 if (lmp_bredr_capable(hdev)) { 2942 set_bredr_scan(hdev); 2943 update_class(hdev); 2944 update_name(hdev, hdev->dev_name); 2945 update_eir(hdev); 2946 } 2947 } else { 2948 u8 status = MGMT_STATUS_NOT_POWERED; 2949 mgmt_pending_foreach(0, hdev, cmd_status_rsp, &status); 2950 } 2951 2952 err = new_settings(hdev, match.sk); 2953 2954 if (match.sk) 2955 sock_put(match.sk); 2956 2957 return err; 2958 } 2959 2960 int mgmt_discoverable(struct hci_dev *hdev, u8 discoverable) 2961 { 2962 struct cmd_lookup match = { NULL, hdev }; 2963 bool changed = false; 2964 int err = 0; 2965 2966 if (discoverable) { 2967 if (!test_and_set_bit(HCI_DISCOVERABLE, &hdev->dev_flags)) 2968 changed = true; 2969 } else { 2970 if (test_and_clear_bit(HCI_DISCOVERABLE, &hdev->dev_flags)) 2971 changed = true; 2972 } 2973 2974 mgmt_pending_foreach(MGMT_OP_SET_DISCOVERABLE, hdev, settings_rsp, 2975 &match); 2976 2977 if (changed) 2978 err = new_settings(hdev, match.sk); 2979 2980 if (match.sk) 2981 sock_put(match.sk); 2982 2983 return err; 2984 } 2985 2986 int mgmt_connectable(struct hci_dev *hdev, u8 connectable) 2987 { 2988 struct cmd_lookup match = { NULL, hdev }; 2989 bool changed = false; 2990 int err = 0; 2991 2992 if (connectable) { 2993 if (!test_and_set_bit(HCI_CONNECTABLE, &hdev->dev_flags)) 2994 changed = true; 2995 } else { 2996 if (test_and_clear_bit(HCI_CONNECTABLE, &hdev->dev_flags)) 2997 changed = true; 2998 } 2999 3000 mgmt_pending_foreach(MGMT_OP_SET_CONNECTABLE, hdev, settings_rsp, 3001 &match); 3002 3003 if (changed) 3004 err = new_settings(hdev, match.sk); 3005 3006 if (match.sk) 3007 sock_put(match.sk); 3008 3009 return err; 3010 } 3011 3012 int mgmt_write_scan_failed(struct hci_dev *hdev, u8 scan, u8 status) 3013 { 3014 u8 mgmt_err = mgmt_status(status); 3015 3016 if (scan & SCAN_PAGE) 3017 mgmt_pending_foreach(MGMT_OP_SET_CONNECTABLE, hdev, 3018 cmd_status_rsp, &mgmt_err); 3019 3020 if (scan & SCAN_INQUIRY) 3021 mgmt_pending_foreach(MGMT_OP_SET_DISCOVERABLE, hdev, 3022 cmd_status_rsp, &mgmt_err); 3023 3024 return 0; 3025 } 3026 3027 int mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key, 3028 bool persistent) 3029 { 3030 struct mgmt_ev_new_link_key ev; 3031 3032 memset(&ev, 0, sizeof(ev)); 3033 3034 ev.store_hint = persistent; 3035 bacpy(&ev.key.addr.bdaddr, &key->bdaddr); 3036 ev.key.addr.type = BDADDR_BREDR; 3037 ev.key.type = key->type; 3038 memcpy(ev.key.val, key->val, HCI_LINK_KEY_SIZE); 3039 ev.key.pin_len = key->pin_len; 3040 3041 return mgmt_event(MGMT_EV_NEW_LINK_KEY, hdev, &ev, sizeof(ev), NULL); 3042 } 3043 3044 int mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, u8 persistent) 3045 { 3046 struct mgmt_ev_new_long_term_key ev; 3047 3048 memset(&ev, 0, sizeof(ev)); 3049 3050 ev.store_hint = persistent; 3051 bacpy(&ev.key.addr.bdaddr, &key->bdaddr); 3052 ev.key.addr.type = link_to_bdaddr(LE_LINK, key->bdaddr_type); 3053 ev.key.authenticated = key->authenticated; 3054 ev.key.enc_size = key->enc_size; 3055 ev.key.ediv = key->ediv; 3056 3057 if (key->type == HCI_SMP_LTK) 3058 ev.key.master = 1; 3059 3060 memcpy(ev.key.rand, key->rand, sizeof(key->rand)); 3061 memcpy(ev.key.val, key->val, sizeof(key->val)); 3062 3063 return mgmt_event(MGMT_EV_NEW_LONG_TERM_KEY, hdev, &ev, sizeof(ev), 3064 NULL); 3065 } 3066 3067 int mgmt_device_connected(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, 3068 u8 addr_type, u32 flags, u8 *name, u8 name_len, 3069 u8 *dev_class) 3070 { 3071 char buf[512]; 3072 struct mgmt_ev_device_connected *ev = (void *) buf; 3073 u16 eir_len = 0; 3074 3075 bacpy(&ev->addr.bdaddr, bdaddr); 3076 ev->addr.type = link_to_bdaddr(link_type, addr_type); 3077 3078 ev->flags = __cpu_to_le32(flags); 3079 3080 if (name_len > 0) 3081 eir_len = eir_append_data(ev->eir, 0, EIR_NAME_COMPLETE, 3082 name, name_len); 3083 3084 if (dev_class && memcmp(dev_class, "\0\0\0", 3) != 0) 3085 eir_len = eir_append_data(ev->eir, eir_len, 3086 EIR_CLASS_OF_DEV, dev_class, 3); 3087 3088 ev->eir_len = cpu_to_le16(eir_len); 3089 3090 return mgmt_event(MGMT_EV_DEVICE_CONNECTED, hdev, buf, 3091 sizeof(*ev) + eir_len, NULL); 3092 } 3093 3094 static void disconnect_rsp(struct pending_cmd *cmd, void *data) 3095 { 3096 struct mgmt_cp_disconnect *cp = cmd->param; 3097 struct sock **sk = data; 3098 struct mgmt_rp_disconnect rp; 3099 3100 bacpy(&rp.addr.bdaddr, &cp->addr.bdaddr); 3101 rp.addr.type = cp->addr.type; 3102 3103 cmd_complete(cmd->sk, cmd->index, MGMT_OP_DISCONNECT, 0, &rp, 3104 sizeof(rp)); 3105 3106 *sk = cmd->sk; 3107 sock_hold(*sk); 3108 3109 mgmt_pending_remove(cmd); 3110 } 3111 3112 static void unpair_device_rsp(struct pending_cmd *cmd, void *data) 3113 { 3114 struct hci_dev *hdev = data; 3115 struct mgmt_cp_unpair_device *cp = cmd->param; 3116 struct mgmt_rp_unpair_device rp; 3117 3118 memset(&rp, 0, sizeof(rp)); 3119 bacpy(&rp.addr.bdaddr, &cp->addr.bdaddr); 3120 rp.addr.type = cp->addr.type; 3121 3122 device_unpaired(hdev, &cp->addr.bdaddr, cp->addr.type, cmd->sk); 3123 3124 cmd_complete(cmd->sk, cmd->index, cmd->opcode, 0, &rp, sizeof(rp)); 3125 3126 mgmt_pending_remove(cmd); 3127 } 3128 3129 int mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr, 3130 u8 link_type, u8 addr_type, u8 reason) 3131 { 3132 struct mgmt_ev_device_disconnected ev; 3133 struct sock *sk = NULL; 3134 int err; 3135 3136 mgmt_pending_foreach(MGMT_OP_DISCONNECT, hdev, disconnect_rsp, &sk); 3137 3138 bacpy(&ev.addr.bdaddr, bdaddr); 3139 ev.addr.type = link_to_bdaddr(link_type, addr_type); 3140 ev.reason = reason; 3141 3142 err = mgmt_event(MGMT_EV_DEVICE_DISCONNECTED, hdev, &ev, sizeof(ev), 3143 sk); 3144 3145 if (sk) 3146 sock_put(sk); 3147 3148 mgmt_pending_foreach(MGMT_OP_UNPAIR_DEVICE, hdev, unpair_device_rsp, 3149 hdev); 3150 3151 return err; 3152 } 3153 3154 int mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, 3155 u8 link_type, u8 addr_type, u8 status) 3156 { 3157 struct mgmt_rp_disconnect rp; 3158 struct pending_cmd *cmd; 3159 int err; 3160 3161 mgmt_pending_foreach(MGMT_OP_UNPAIR_DEVICE, hdev, unpair_device_rsp, 3162 hdev); 3163 3164 cmd = mgmt_pending_find(MGMT_OP_DISCONNECT, hdev); 3165 if (!cmd) 3166 return -ENOENT; 3167 3168 bacpy(&rp.addr.bdaddr, bdaddr); 3169 rp.addr.type = link_to_bdaddr(link_type, addr_type); 3170 3171 err = cmd_complete(cmd->sk, cmd->index, MGMT_OP_DISCONNECT, 3172 mgmt_status(status), &rp, sizeof(rp)); 3173 3174 mgmt_pending_remove(cmd); 3175 3176 return err; 3177 } 3178 3179 int mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, 3180 u8 addr_type, u8 status) 3181 { 3182 struct mgmt_ev_connect_failed ev; 3183 3184 bacpy(&ev.addr.bdaddr, bdaddr); 3185 ev.addr.type = link_to_bdaddr(link_type, addr_type); 3186 ev.status = mgmt_status(status); 3187 3188 return mgmt_event(MGMT_EV_CONNECT_FAILED, hdev, &ev, sizeof(ev), NULL); 3189 } 3190 3191 int mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure) 3192 { 3193 struct mgmt_ev_pin_code_request ev; 3194 3195 bacpy(&ev.addr.bdaddr, bdaddr); 3196 ev.addr.type = BDADDR_BREDR; 3197 ev.secure = secure; 3198 3199 return mgmt_event(MGMT_EV_PIN_CODE_REQUEST, hdev, &ev, sizeof(ev), 3200 NULL); 3201 } 3202 3203 int mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 3204 u8 status) 3205 { 3206 struct pending_cmd *cmd; 3207 struct mgmt_rp_pin_code_reply rp; 3208 int err; 3209 3210 cmd = mgmt_pending_find(MGMT_OP_PIN_CODE_REPLY, hdev); 3211 if (!cmd) 3212 return -ENOENT; 3213 3214 bacpy(&rp.addr.bdaddr, bdaddr); 3215 rp.addr.type = BDADDR_BREDR; 3216 3217 err = cmd_complete(cmd->sk, hdev->id, MGMT_OP_PIN_CODE_REPLY, 3218 mgmt_status(status), &rp, sizeof(rp)); 3219 3220 mgmt_pending_remove(cmd); 3221 3222 return err; 3223 } 3224 3225 int mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 3226 u8 status) 3227 { 3228 struct pending_cmd *cmd; 3229 struct mgmt_rp_pin_code_reply rp; 3230 int err; 3231 3232 cmd = mgmt_pending_find(MGMT_OP_PIN_CODE_NEG_REPLY, hdev); 3233 if (!cmd) 3234 return -ENOENT; 3235 3236 bacpy(&rp.addr.bdaddr, bdaddr); 3237 rp.addr.type = BDADDR_BREDR; 3238 3239 err = cmd_complete(cmd->sk, hdev->id, MGMT_OP_PIN_CODE_NEG_REPLY, 3240 mgmt_status(status), &rp, sizeof(rp)); 3241 3242 mgmt_pending_remove(cmd); 3243 3244 return err; 3245 } 3246 3247 int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr, 3248 u8 link_type, u8 addr_type, __le32 value, 3249 u8 confirm_hint) 3250 { 3251 struct mgmt_ev_user_confirm_request ev; 3252 3253 BT_DBG("%s", hdev->name); 3254 3255 bacpy(&ev.addr.bdaddr, bdaddr); 3256 ev.addr.type = link_to_bdaddr(link_type, addr_type); 3257 ev.confirm_hint = confirm_hint; 3258 ev.value = value; 3259 3260 return mgmt_event(MGMT_EV_USER_CONFIRM_REQUEST, hdev, &ev, sizeof(ev), 3261 NULL); 3262 } 3263 3264 int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr, 3265 u8 link_type, u8 addr_type) 3266 { 3267 struct mgmt_ev_user_passkey_request ev; 3268 3269 BT_DBG("%s", hdev->name); 3270 3271 bacpy(&ev.addr.bdaddr, bdaddr); 3272 ev.addr.type = link_to_bdaddr(link_type, addr_type); 3273 3274 return mgmt_event(MGMT_EV_USER_PASSKEY_REQUEST, hdev, &ev, sizeof(ev), 3275 NULL); 3276 } 3277 3278 static int user_pairing_resp_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 3279 u8 link_type, u8 addr_type, u8 status, 3280 u8 opcode) 3281 { 3282 struct pending_cmd *cmd; 3283 struct mgmt_rp_user_confirm_reply rp; 3284 int err; 3285 3286 cmd = mgmt_pending_find(opcode, hdev); 3287 if (!cmd) 3288 return -ENOENT; 3289 3290 bacpy(&rp.addr.bdaddr, bdaddr); 3291 rp.addr.type = link_to_bdaddr(link_type, addr_type); 3292 err = cmd_complete(cmd->sk, hdev->id, opcode, mgmt_status(status), 3293 &rp, sizeof(rp)); 3294 3295 mgmt_pending_remove(cmd); 3296 3297 return err; 3298 } 3299 3300 int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 3301 u8 link_type, u8 addr_type, u8 status) 3302 { 3303 return user_pairing_resp_complete(hdev, bdaddr, link_type, addr_type, 3304 status, MGMT_OP_USER_CONFIRM_REPLY); 3305 } 3306 3307 int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 3308 u8 link_type, u8 addr_type, u8 status) 3309 { 3310 return user_pairing_resp_complete(hdev, bdaddr, link_type, addr_type, 3311 status, 3312 MGMT_OP_USER_CONFIRM_NEG_REPLY); 3313 } 3314 3315 int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 3316 u8 link_type, u8 addr_type, u8 status) 3317 { 3318 return user_pairing_resp_complete(hdev, bdaddr, link_type, addr_type, 3319 status, MGMT_OP_USER_PASSKEY_REPLY); 3320 } 3321 3322 int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 3323 u8 link_type, u8 addr_type, u8 status) 3324 { 3325 return user_pairing_resp_complete(hdev, bdaddr, link_type, addr_type, 3326 status, 3327 MGMT_OP_USER_PASSKEY_NEG_REPLY); 3328 } 3329 3330 int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr, 3331 u8 link_type, u8 addr_type, u32 passkey, 3332 u8 entered) 3333 { 3334 struct mgmt_ev_passkey_notify ev; 3335 3336 BT_DBG("%s", hdev->name); 3337 3338 bacpy(&ev.addr.bdaddr, bdaddr); 3339 ev.addr.type = link_to_bdaddr(link_type, addr_type); 3340 ev.passkey = __cpu_to_le32(passkey); 3341 ev.entered = entered; 3342 3343 return mgmt_event(MGMT_EV_PASSKEY_NOTIFY, hdev, &ev, sizeof(ev), NULL); 3344 } 3345 3346 int mgmt_auth_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, 3347 u8 addr_type, u8 status) 3348 { 3349 struct mgmt_ev_auth_failed ev; 3350 3351 bacpy(&ev.addr.bdaddr, bdaddr); 3352 ev.addr.type = link_to_bdaddr(link_type, addr_type); 3353 ev.status = mgmt_status(status); 3354 3355 return mgmt_event(MGMT_EV_AUTH_FAILED, hdev, &ev, sizeof(ev), NULL); 3356 } 3357 3358 int mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status) 3359 { 3360 struct cmd_lookup match = { NULL, hdev }; 3361 bool changed = false; 3362 int err = 0; 3363 3364 if (status) { 3365 u8 mgmt_err = mgmt_status(status); 3366 mgmt_pending_foreach(MGMT_OP_SET_LINK_SECURITY, hdev, 3367 cmd_status_rsp, &mgmt_err); 3368 return 0; 3369 } 3370 3371 if (test_bit(HCI_AUTH, &hdev->flags)) { 3372 if (!test_and_set_bit(HCI_LINK_SECURITY, &hdev->dev_flags)) 3373 changed = true; 3374 } else { 3375 if (test_and_clear_bit(HCI_LINK_SECURITY, &hdev->dev_flags)) 3376 changed = true; 3377 } 3378 3379 mgmt_pending_foreach(MGMT_OP_SET_LINK_SECURITY, hdev, settings_rsp, 3380 &match); 3381 3382 if (changed) 3383 err = new_settings(hdev, match.sk); 3384 3385 if (match.sk) 3386 sock_put(match.sk); 3387 3388 return err; 3389 } 3390 3391 static int clear_eir(struct hci_dev *hdev) 3392 { 3393 struct hci_cp_write_eir cp; 3394 3395 if (!lmp_ext_inq_capable(hdev)) 3396 return 0; 3397 3398 memset(hdev->eir, 0, sizeof(hdev->eir)); 3399 3400 memset(&cp, 0, sizeof(cp)); 3401 3402 return hci_send_cmd(hdev, HCI_OP_WRITE_EIR, sizeof(cp), &cp); 3403 } 3404 3405 int mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status) 3406 { 3407 struct cmd_lookup match = { NULL, hdev }; 3408 bool changed = false; 3409 int err = 0; 3410 3411 if (status) { 3412 u8 mgmt_err = mgmt_status(status); 3413 3414 if (enable && test_and_clear_bit(HCI_SSP_ENABLED, 3415 &hdev->dev_flags)) 3416 err = new_settings(hdev, NULL); 3417 3418 mgmt_pending_foreach(MGMT_OP_SET_SSP, hdev, cmd_status_rsp, 3419 &mgmt_err); 3420 3421 return err; 3422 } 3423 3424 if (enable) { 3425 if (!test_and_set_bit(HCI_SSP_ENABLED, &hdev->dev_flags)) 3426 changed = true; 3427 } else { 3428 if (test_and_clear_bit(HCI_SSP_ENABLED, &hdev->dev_flags)) 3429 changed = true; 3430 } 3431 3432 mgmt_pending_foreach(MGMT_OP_SET_SSP, hdev, settings_rsp, &match); 3433 3434 if (changed) 3435 err = new_settings(hdev, match.sk); 3436 3437 if (match.sk) 3438 sock_put(match.sk); 3439 3440 if (test_bit(HCI_SSP_ENABLED, &hdev->dev_flags)) 3441 update_eir(hdev); 3442 else 3443 clear_eir(hdev); 3444 3445 return err; 3446 } 3447 3448 static void class_rsp(struct pending_cmd *cmd, void *data) 3449 { 3450 struct cmd_lookup *match = data; 3451 3452 cmd_complete(cmd->sk, cmd->index, cmd->opcode, match->mgmt_status, 3453 match->hdev->dev_class, 3); 3454 3455 list_del(&cmd->list); 3456 3457 if (match->sk == NULL) { 3458 match->sk = cmd->sk; 3459 sock_hold(match->sk); 3460 } 3461 3462 mgmt_pending_free(cmd); 3463 } 3464 3465 int mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class, 3466 u8 status) 3467 { 3468 struct cmd_lookup match = { NULL, hdev, mgmt_status(status) }; 3469 int err = 0; 3470 3471 clear_bit(HCI_PENDING_CLASS, &hdev->dev_flags); 3472 3473 mgmt_pending_foreach(MGMT_OP_SET_DEV_CLASS, hdev, class_rsp, &match); 3474 mgmt_pending_foreach(MGMT_OP_ADD_UUID, hdev, class_rsp, &match); 3475 mgmt_pending_foreach(MGMT_OP_REMOVE_UUID, hdev, class_rsp, &match); 3476 3477 if (!status) 3478 err = mgmt_event(MGMT_EV_CLASS_OF_DEV_CHANGED, hdev, dev_class, 3479 3, NULL); 3480 3481 if (match.sk) 3482 sock_put(match.sk); 3483 3484 return err; 3485 } 3486 3487 int mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status) 3488 { 3489 struct pending_cmd *cmd; 3490 struct mgmt_cp_set_local_name ev; 3491 bool changed = false; 3492 int err = 0; 3493 3494 if (memcmp(name, hdev->dev_name, sizeof(hdev->dev_name)) != 0) { 3495 memcpy(hdev->dev_name, name, sizeof(hdev->dev_name)); 3496 changed = true; 3497 } 3498 3499 memset(&ev, 0, sizeof(ev)); 3500 memcpy(ev.name, name, HCI_MAX_NAME_LENGTH); 3501 memcpy(ev.short_name, hdev->short_name, HCI_MAX_SHORT_NAME_LENGTH); 3502 3503 cmd = mgmt_pending_find(MGMT_OP_SET_LOCAL_NAME, hdev); 3504 if (!cmd) 3505 goto send_event; 3506 3507 /* Always assume that either the short or the complete name has 3508 * changed if there was a pending mgmt command */ 3509 changed = true; 3510 3511 if (status) { 3512 err = cmd_status(cmd->sk, hdev->id, MGMT_OP_SET_LOCAL_NAME, 3513 mgmt_status(status)); 3514 goto failed; 3515 } 3516 3517 err = cmd_complete(cmd->sk, hdev->id, MGMT_OP_SET_LOCAL_NAME, 0, &ev, 3518 sizeof(ev)); 3519 if (err < 0) 3520 goto failed; 3521 3522 send_event: 3523 if (changed) 3524 err = mgmt_event(MGMT_EV_LOCAL_NAME_CHANGED, hdev, &ev, 3525 sizeof(ev), cmd ? cmd->sk : NULL); 3526 3527 /* EIR is taken care of separately when powering on the 3528 * adapter so only update them here if this is a name change 3529 * unrelated to power on. 3530 */ 3531 if (!test_bit(HCI_INIT, &hdev->flags)) 3532 update_eir(hdev); 3533 3534 failed: 3535 if (cmd) 3536 mgmt_pending_remove(cmd); 3537 return err; 3538 } 3539 3540 int mgmt_read_local_oob_data_reply_complete(struct hci_dev *hdev, u8 *hash, 3541 u8 *randomizer, u8 status) 3542 { 3543 struct pending_cmd *cmd; 3544 int err; 3545 3546 BT_DBG("%s status %u", hdev->name, status); 3547 3548 cmd = mgmt_pending_find(MGMT_OP_READ_LOCAL_OOB_DATA, hdev); 3549 if (!cmd) 3550 return -ENOENT; 3551 3552 if (status) { 3553 err = cmd_status(cmd->sk, hdev->id, MGMT_OP_READ_LOCAL_OOB_DATA, 3554 mgmt_status(status)); 3555 } else { 3556 struct mgmt_rp_read_local_oob_data rp; 3557 3558 memcpy(rp.hash, hash, sizeof(rp.hash)); 3559 memcpy(rp.randomizer, randomizer, sizeof(rp.randomizer)); 3560 3561 err = cmd_complete(cmd->sk, hdev->id, 3562 MGMT_OP_READ_LOCAL_OOB_DATA, 0, &rp, 3563 sizeof(rp)); 3564 } 3565 3566 mgmt_pending_remove(cmd); 3567 3568 return err; 3569 } 3570 3571 int mgmt_le_enable_complete(struct hci_dev *hdev, u8 enable, u8 status) 3572 { 3573 struct cmd_lookup match = { NULL, hdev }; 3574 bool changed = false; 3575 int err = 0; 3576 3577 if (status) { 3578 u8 mgmt_err = mgmt_status(status); 3579 3580 if (enable && test_and_clear_bit(HCI_LE_ENABLED, 3581 &hdev->dev_flags)) 3582 err = new_settings(hdev, NULL); 3583 3584 mgmt_pending_foreach(MGMT_OP_SET_LE, hdev, cmd_status_rsp, 3585 &mgmt_err); 3586 3587 return err; 3588 } 3589 3590 if (enable) { 3591 if (!test_and_set_bit(HCI_LE_ENABLED, &hdev->dev_flags)) 3592 changed = true; 3593 } else { 3594 if (test_and_clear_bit(HCI_LE_ENABLED, &hdev->dev_flags)) 3595 changed = true; 3596 } 3597 3598 mgmt_pending_foreach(MGMT_OP_SET_LE, hdev, settings_rsp, &match); 3599 3600 if (changed) 3601 err = new_settings(hdev, match.sk); 3602 3603 if (match.sk) 3604 sock_put(match.sk); 3605 3606 return err; 3607 } 3608 3609 int mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, 3610 u8 addr_type, u8 *dev_class, s8 rssi, u8 cfm_name, u8 3611 ssp, u8 *eir, u16 eir_len) 3612 { 3613 char buf[512]; 3614 struct mgmt_ev_device_found *ev = (void *) buf; 3615 size_t ev_size; 3616 3617 /* Leave 5 bytes for a potential CoD field */ 3618 if (sizeof(*ev) + eir_len + 5 > sizeof(buf)) 3619 return -EINVAL; 3620 3621 memset(buf, 0, sizeof(buf)); 3622 3623 bacpy(&ev->addr.bdaddr, bdaddr); 3624 ev->addr.type = link_to_bdaddr(link_type, addr_type); 3625 ev->rssi = rssi; 3626 if (cfm_name) 3627 ev->flags |= __constant_cpu_to_le32(MGMT_DEV_FOUND_CONFIRM_NAME); 3628 if (!ssp) 3629 ev->flags |= __constant_cpu_to_le32(MGMT_DEV_FOUND_LEGACY_PAIRING); 3630 3631 if (eir_len > 0) 3632 memcpy(ev->eir, eir, eir_len); 3633 3634 if (dev_class && !eir_has_data_type(ev->eir, eir_len, EIR_CLASS_OF_DEV)) 3635 eir_len = eir_append_data(ev->eir, eir_len, EIR_CLASS_OF_DEV, 3636 dev_class, 3); 3637 3638 ev->eir_len = cpu_to_le16(eir_len); 3639 ev_size = sizeof(*ev) + eir_len; 3640 3641 return mgmt_event(MGMT_EV_DEVICE_FOUND, hdev, ev, ev_size, NULL); 3642 } 3643 3644 int mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, 3645 u8 addr_type, s8 rssi, u8 *name, u8 name_len) 3646 { 3647 struct mgmt_ev_device_found *ev; 3648 char buf[sizeof(*ev) + HCI_MAX_NAME_LENGTH + 2]; 3649 u16 eir_len; 3650 3651 ev = (struct mgmt_ev_device_found *) buf; 3652 3653 memset(buf, 0, sizeof(buf)); 3654 3655 bacpy(&ev->addr.bdaddr, bdaddr); 3656 ev->addr.type = link_to_bdaddr(link_type, addr_type); 3657 ev->rssi = rssi; 3658 3659 eir_len = eir_append_data(ev->eir, 0, EIR_NAME_COMPLETE, name, 3660 name_len); 3661 3662 ev->eir_len = cpu_to_le16(eir_len); 3663 3664 return mgmt_event(MGMT_EV_DEVICE_FOUND, hdev, ev, 3665 sizeof(*ev) + eir_len, NULL); 3666 } 3667 3668 int mgmt_start_discovery_failed(struct hci_dev *hdev, u8 status) 3669 { 3670 struct pending_cmd *cmd; 3671 u8 type; 3672 int err; 3673 3674 hci_discovery_set_state(hdev, DISCOVERY_STOPPED); 3675 3676 cmd = mgmt_pending_find(MGMT_OP_START_DISCOVERY, hdev); 3677 if (!cmd) 3678 return -ENOENT; 3679 3680 type = hdev->discovery.type; 3681 3682 err = cmd_complete(cmd->sk, hdev->id, cmd->opcode, mgmt_status(status), 3683 &type, sizeof(type)); 3684 mgmt_pending_remove(cmd); 3685 3686 return err; 3687 } 3688 3689 int mgmt_stop_discovery_failed(struct hci_dev *hdev, u8 status) 3690 { 3691 struct pending_cmd *cmd; 3692 int err; 3693 3694 cmd = mgmt_pending_find(MGMT_OP_STOP_DISCOVERY, hdev); 3695 if (!cmd) 3696 return -ENOENT; 3697 3698 err = cmd_complete(cmd->sk, hdev->id, cmd->opcode, mgmt_status(status), 3699 &hdev->discovery.type, sizeof(hdev->discovery.type)); 3700 mgmt_pending_remove(cmd); 3701 3702 return err; 3703 } 3704 3705 int mgmt_discovering(struct hci_dev *hdev, u8 discovering) 3706 { 3707 struct mgmt_ev_discovering ev; 3708 struct pending_cmd *cmd; 3709 3710 BT_DBG("%s discovering %u", hdev->name, discovering); 3711 3712 if (discovering) 3713 cmd = mgmt_pending_find(MGMT_OP_START_DISCOVERY, hdev); 3714 else 3715 cmd = mgmt_pending_find(MGMT_OP_STOP_DISCOVERY, hdev); 3716 3717 if (cmd != NULL) { 3718 u8 type = hdev->discovery.type; 3719 3720 cmd_complete(cmd->sk, hdev->id, cmd->opcode, 0, &type, 3721 sizeof(type)); 3722 mgmt_pending_remove(cmd); 3723 } 3724 3725 memset(&ev, 0, sizeof(ev)); 3726 ev.type = hdev->discovery.type; 3727 ev.discovering = discovering; 3728 3729 return mgmt_event(MGMT_EV_DISCOVERING, hdev, &ev, sizeof(ev), NULL); 3730 } 3731 3732 int mgmt_device_blocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type) 3733 { 3734 struct pending_cmd *cmd; 3735 struct mgmt_ev_device_blocked ev; 3736 3737 cmd = mgmt_pending_find(MGMT_OP_BLOCK_DEVICE, hdev); 3738 3739 bacpy(&ev.addr.bdaddr, bdaddr); 3740 ev.addr.type = type; 3741 3742 return mgmt_event(MGMT_EV_DEVICE_BLOCKED, hdev, &ev, sizeof(ev), 3743 cmd ? cmd->sk : NULL); 3744 } 3745 3746 int mgmt_device_unblocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type) 3747 { 3748 struct pending_cmd *cmd; 3749 struct mgmt_ev_device_unblocked ev; 3750 3751 cmd = mgmt_pending_find(MGMT_OP_UNBLOCK_DEVICE, hdev); 3752 3753 bacpy(&ev.addr.bdaddr, bdaddr); 3754 ev.addr.type = type; 3755 3756 return mgmt_event(MGMT_EV_DEVICE_UNBLOCKED, hdev, &ev, sizeof(ev), 3757 cmd ? cmd->sk : NULL); 3758 } 3759 3760 module_param(enable_hs, bool, 0644); 3761 MODULE_PARM_DESC(enable_hs, "Enable High Speed support"); 3762