net/bluetooth/hci_event.c

   1 /*
   2    BlueZ - Bluetooth protocol stack for Linux
   3    Copyright (C) 2000-2001 Qualcomm Incorporated
   4
   5    Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License version 2 as
   9    published by the Free Software Foundation;
  10
  11    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  12    OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  13    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
  14    IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
  15    CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
  16    WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  17    ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  18    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  19
  20    ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
  21    COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
  22    SOFTWARE IS DISCLAIMED.
  23 */
  24
  25 /* Bluetooth HCI event handling. */
  26
  27 #include <linux/module.h>
  28
  29 #include <linux/types.h>
  30 #include <linux/errno.h>
  31 #include <linux/kernel.h>
  32 #include <linux/slab.h>
  33 #include <linux/poll.h>
  34 #include <linux/fcntl.h>
  35 #include <linux/init.h>
  36 #include <linux/skbuff.h>
  37 #include <linux/interrupt.h>
  38 #include <linux/notifier.h>
  39 #include <net/sock.h>
  40
  41 #include <asm/system.h>
  42 #include <asm/uaccess.h>
  43 #include <asm/unaligned.h>
  44
  45 #include <net/bluetooth/bluetooth.h>
  46 #include <net/bluetooth/hci_core.h>
  47
  48 /* Handle HCI Event packets */
  49
  50 static void hci_cc_inquiry_cancel(struct hci_dev *hdev, struct sk_buff *skb)
  51 {
  52         __u8 status = *((__u8 *) skb->data);
  53
  54         BT_DBG("%s status 0x%x", hdev->name, status);
  55
  56         if (status)
  57                 return;
  58
  59         clear_bit(HCI_INQUIRY, &hdev->flags);
  60
  61         hci_req_complete(hdev, status);
  62
  63         hci_conn_check_pending(hdev);
  64 }
  65
  66 static void hci_cc_exit_periodic_inq(struct hci_dev *hdev, struct sk_buff *skb)
  67 {
  68         __u8 status = *((__u8 *) skb->data);
  69
  70         BT_DBG("%s status 0x%x", hdev->name, status);
  71
  72         if (status)
  73                 return;
  74
  75         clear_bit(HCI_INQUIRY, &hdev->flags);
  76
  77         hci_conn_check_pending(hdev);
  78 }
  79
  80 static void hci_cc_remote_name_req_cancel(struct hci_dev *hdev, struct sk_buff *skb)
  81 {
  82         BT_DBG("%s", hdev->name);
  83 }
  84
  85 static void hci_cc_role_discovery(struct hci_dev *hdev, struct sk_buff *skb)
  86 {
  87         struct hci_rp_role_discovery *rp = (void *) skb->data;
  88         struct hci_conn *conn;
  89
  90         BT_DBG("%s status 0x%x", hdev->name, rp->status);
  91
  92         if (rp->status)
  93                 return;
  94
  95         hci_dev_lock(hdev);
  96
  97         conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
  98         if (conn) {
  99                 if (rp->role)
 100                         conn->link_mode &= ~HCI_LM_MASTER;
 101                 else
 102                         conn->link_mode |= HCI_LM_MASTER;
 103         }
 104
 105         hci_dev_unlock(hdev);
 106 }
 107
 108 static void hci_cc_read_link_policy(struct hci_dev *hdev, struct sk_buff *skb)
 109 {
 110         struct hci_rp_read_link_policy *rp = (void *) skb->data;
 111         struct hci_conn *conn;
 112
 113         BT_DBG("%s status 0x%x", hdev->name, rp->status);
 114
 115         if (rp->status)
 116                 return;
 117
 118         hci_dev_lock(hdev);
 119
 120         conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
 121         if (conn)
 122                 conn->link_policy = __le16_to_cpu(rp->policy);
 123
 124         hci_dev_unlock(hdev);
 125 }
 126
 127 static void hci_cc_write_link_policy(struct hci_dev *hdev, struct sk_buff *skb)
 128 {
 129         struct hci_rp_write_link_policy *rp = (void *) skb->data;
 130         struct hci_conn *conn;
 131         void *sent;
 132
 133         BT_DBG("%s status 0x%x", hdev->name, rp->status);
 134
 135         if (rp->status)
 136                 return;
 137
 138         sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LINK_POLICY);
 139         if (!sent)
 140                 return;
 141
 142         hci_dev_lock(hdev);
 143
 144         conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
 145         if (conn)
 146                 conn->link_policy = get_unaligned_le16(sent + 2);
 147
 148         hci_dev_unlock(hdev);
 149 }
 150
 151 static void hci_cc_read_def_link_policy(struct hci_dev *hdev, struct sk_buff *skb)
 152 {
 153         struct hci_rp_read_def_link_policy *rp = (void *) skb->data;
 154
 155         BT_DBG("%s status 0x%x", hdev->name, rp->status);
 156
 157         if (rp->status)
 158                 return;
 159
 160         hdev->link_policy = __le16_to_cpu(rp->policy);
 161 }
 162
 163 static void hci_cc_write_def_link_policy(struct hci_dev *hdev, struct sk_buff *skb)
 164 {
 165         __u8 status = *((__u8 *) skb->data);
 166         void *sent;
 167
 168         BT_DBG("%s status 0x%x", hdev->name, status);
 169
 170         sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_DEF_LINK_POLICY);
 171         if (!sent)
 172                 return;
 173
 174         if (!status)
 175                 hdev->link_policy = get_unaligned_le16(sent);
 176
 177         hci_req_complete(hdev, status);
 178 }
 179
 180 static void hci_cc_reset(struct hci_dev *hdev, struct sk_buff *skb)
 181 {
 182         __u8 status = *((__u8 *) skb->data);
 183
 184         BT_DBG("%s status 0x%x", hdev->name, status);
 185
 186         hci_req_complete(hdev, status);
 187 }
 188
 189 static void hci_cc_write_local_name(struct hci_dev *hdev, struct sk_buff *skb)
 190 {
 191         __u8 status = *((__u8 *) skb->data);
 192         void *sent;
 193
 194         BT_DBG("%s status 0x%x", hdev->name, status);
 195
 196         if (status)
 197                 return;
 198
 199         sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LOCAL_NAME);
 200         if (!sent)
 201                 return;
 202
 203         memcpy(hdev->dev_name, sent, 248);
 204 }
 205
 206 static void hci_cc_read_local_name(struct hci_dev *hdev, struct sk_buff *skb)
 207 {
 208         struct hci_rp_read_local_name *rp = (void *) skb->data;
 209
 210         BT_DBG("%s status 0x%x", hdev->name, rp->status);
 211
 212         if (rp->status)
 213                 return;
 214
 215         memcpy(hdev->dev_name, rp->name, 248);
 216 }
 217
 218 static void hci_cc_write_auth_enable(struct hci_dev *hdev, struct sk_buff *skb)
 219 {
 220         __u8 status = *((__u8 *) skb->data);
 221         void *sent;
 222
 223         BT_DBG("%s status 0x%x", hdev->name, status);
 224
 225         sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_AUTH_ENABLE);
 226         if (!sent)
 227                 return;
 228
 229         if (!status) {
 230                 __u8 param = *((__u8 *) sent);
 231
 232                 if (param == AUTH_ENABLED)
 233                         set_bit(HCI_AUTH, &hdev->flags);
 234                 else
 235                         clear_bit(HCI_AUTH, &hdev->flags);
 236         }
 237
 238         hci_req_complete(hdev, status);
 239 }
 240
 241 static void hci_cc_write_encrypt_mode(struct hci_dev *hdev, struct sk_buff *skb)
 242 {
 243         __u8 status = *((__u8 *) skb->data);
 244         void *sent;
 245
 246         BT_DBG("%s status 0x%x", hdev->name, status);
 247
 248         sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_ENCRYPT_MODE);
 249         if (!sent)
 250                 return;
 251
 252         if (!status) {
 253                 __u8 param = *((__u8 *) sent);
 254
 255                 if (param)
 256                         set_bit(HCI_ENCRYPT, &hdev->flags);
 257                 else
 258                         clear_bit(HCI_ENCRYPT, &hdev->flags);
 259         }
 260
 261         hci_req_complete(hdev, status);
 262 }
 263
 264 static void hci_cc_write_scan_enable(struct hci_dev *hdev, struct sk_buff *skb)
 265 {
 266         __u8 status = *((__u8 *) skb->data);
 267         void *sent;
 268
 269         BT_DBG("%s status 0x%x", hdev->name, status);
 270
 271         sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SCAN_ENABLE);
 272         if (!sent)
 273                 return;
 274
 275         if (!status) {
 276                 __u8 param = *((__u8 *) sent);
 277
 278                 clear_bit(HCI_PSCAN, &hdev->flags);
 279                 clear_bit(HCI_ISCAN, &hdev->flags);
 280
 281                 if (param & SCAN_INQUIRY)
 282                         set_bit(HCI_ISCAN, &hdev->flags);
 283
 284                 if (param & SCAN_PAGE)
 285                         set_bit(HCI_PSCAN, &hdev->flags);
 286         }
 287
 288         hci_req_complete(hdev, status);
 289 }
 290
 291 static void hci_cc_read_class_of_dev(struct hci_dev *hdev, struct sk_buff *skb)
 292 {
 293         struct hci_rp_read_class_of_dev *rp = (void *) skb->data;
 294
 295         BT_DBG("%s status 0x%x", hdev->name, rp->status);
 296
 297         if (rp->status)
 298                 return;
 299
 300         memcpy(hdev->dev_class, rp->dev_class, 3);
 301
 302         BT_DBG("%s class 0x%.2x%.2x%.2x", hdev->name,
 303                 hdev->dev_class[2], hdev->dev_class[1], hdev->dev_class[0]);
 304 }
 305
 306 static void hci_cc_write_class_of_dev(struct hci_dev *hdev, struct sk_buff *skb)
 307 {
 308         __u8 status = *((__u8 *) skb->data);
 309         void *sent;
 310
 311         BT_DBG("%s status 0x%x", hdev->name, status);
 312
 313         if (status)
 314                 return;
 315
 316         sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_CLASS_OF_DEV);
 317         if (!sent)
 318                 return;
 319
 320         memcpy(hdev->dev_class, sent, 3);
 321 }
 322
 323 static void hci_cc_read_voice_setting(struct hci_dev *hdev, struct sk_buff *skb)
 324 {
 325         struct hci_rp_read_voice_setting *rp = (void *) skb->data;
 326         __u16 setting;
 327
 328         BT_DBG("%s status 0x%x", hdev->name, rp->status);
 329
 330         if (rp->status)
 331                 return;
 332
 333         setting = __le16_to_cpu(rp->voice_setting);
 334
 335         if (hdev->voice_setting == setting)
 336                 return;
 337
 338         hdev->voice_setting = setting;
 339
 340         BT_DBG("%s voice setting 0x%04x", hdev->name, setting);
 341
 342         if (hdev->notify) {
 343                 tasklet_disable(&hdev->tx_task);
 344                 hdev->notify(hdev, HCI_NOTIFY_VOICE_SETTING);
 345                 tasklet_enable(&hdev->tx_task);
 346         }
 347 }
 348
 349 static void hci_cc_write_voice_setting(struct hci_dev *hdev, struct sk_buff *skb)
 350 {
 351         __u8 status = *((__u8 *) skb->data);
 352         __u16 setting;
 353         void *sent;
 354
 355         BT_DBG("%s status 0x%x", hdev->name, status);
 356
 357         if (status)
 358                 return;
 359
 360         sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_VOICE_SETTING);
 361         if (!sent)
 362                 return;
 363
 364         setting = get_unaligned_le16(sent);
 365
 366         if (hdev->voice_setting == setting)
 367                 return;
 368
 369         hdev->voice_setting = setting;
 370
 371         BT_DBG("%s voice setting 0x%04x", hdev->name, setting);
 372
 373         if (hdev->notify) {
 374                 tasklet_disable(&hdev->tx_task);
 375                 hdev->notify(hdev, HCI_NOTIFY_VOICE_SETTING);
 376                 tasklet_enable(&hdev->tx_task);
 377         }
 378 }
 379
 380 static void hci_cc_host_buffer_size(struct hci_dev *hdev, struct sk_buff *skb)
 381 {
 382         __u8 status = *((__u8 *) skb->data);
 383
 384         BT_DBG("%s status 0x%x", hdev->name, status);
 385
 386         hci_req_complete(hdev, status);
 387 }
 388
 389 static void hci_cc_read_ssp_mode(struct hci_dev *hdev, struct sk_buff *skb)
 390 {
 391         struct hci_rp_read_ssp_mode *rp = (void *) skb->data;
 392
 393         BT_DBG("%s status 0x%x", hdev->name, rp->status);
 394
 395         if (rp->status)
 396                 return;
 397
 398         hdev->ssp_mode = rp->mode;
 399 }
 400
 401 static void hci_cc_write_ssp_mode(struct hci_dev *hdev, struct sk_buff *skb)
 402 {
 403         __u8 status = *((__u8 *) skb->data);
 404         void *sent;
 405
 406         BT_DBG("%s status 0x%x", hdev->name, status);
 407
 408         if (status)
 409                 return;
 410
 411         sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SSP_MODE);
 412         if (!sent)
 413                 return;
 414
 415         hdev->ssp_mode = *((__u8 *) sent);
 416 }
 417
 418 static void hci_cc_read_local_version(struct hci_dev *hdev, struct sk_buff *skb)
 419 {
 420         struct hci_rp_read_local_version *rp = (void *) skb->data;
 421
 422         BT_DBG("%s status 0x%x", hdev->name, rp->status);
 423
 424         if (rp->status)
 425                 return;
 426
 427         hdev->hci_ver = rp->hci_ver;
 428         hdev->hci_rev = __le16_to_cpu(rp->hci_rev);
 429         hdev->manufacturer = __le16_to_cpu(rp->manufacturer);
 430
 431         BT_DBG("%s manufacturer %d hci ver %d:%d", hdev->name,
 432                                         hdev->manufacturer,
 433                                         hdev->hci_ver, hdev->hci_rev);
 434 }
 435
 436 static void hci_cc_read_local_commands(struct hci_dev *hdev, struct sk_buff *skb)
 437 {
 438         struct hci_rp_read_local_commands *rp = (void *) skb->data;
 439
 440         BT_DBG("%s status 0x%x", hdev->name, rp->status);
 441
 442         if (rp->status)
 443                 return;
 444
 445         memcpy(hdev->commands, rp->commands, sizeof(hdev->commands));
 446 }
 447
 448 static void hci_cc_read_local_features(struct hci_dev *hdev, struct sk_buff *skb)
 449 {
 450         struct hci_rp_read_local_features *rp = (void *) skb->data;
 451
 452         BT_DBG("%s status 0x%x", hdev->name, rp->status);
 453
 454         if (rp->status)
 455                 return;
 456
 457         memcpy(hdev->features, rp->features, 8);
 458
 459         /* Adjust default settings according to features
 460          * supported by device. */
 461
 462         if (hdev->features[0] & LMP_3SLOT)
 463                 hdev->pkt_type |= (HCI_DM3 | HCI_DH3);
 464
 465         if (hdev->features[0] & LMP_5SLOT)
 466                 hdev->pkt_type |= (HCI_DM5 | HCI_DH5);
 467
 468         if (hdev->features[1] & LMP_HV2) {
 469                 hdev->pkt_type  |= (HCI_HV2);
 470                 hdev->esco_type |= (ESCO_HV2);
 471         }
 472
 473         if (hdev->features[1] & LMP_HV3) {
 474                 hdev->pkt_type  |= (HCI_HV3);
 475                 hdev->esco_type |= (ESCO_HV3);
 476         }
 477
 478         if (hdev->features[3] & LMP_ESCO)
 479                 hdev->esco_type |= (ESCO_EV3);
 480
 481         if (hdev->features[4] & LMP_EV4)
 482                 hdev->esco_type |= (ESCO_EV4);
 483
 484         if (hdev->features[4] & LMP_EV5)
 485                 hdev->esco_type |= (ESCO_EV5);
 486
 487         if (hdev->features[5] & LMP_EDR_ESCO_2M)
 488                 hdev->esco_type |= (ESCO_2EV3);
 489
 490         if (hdev->features[5] & LMP_EDR_ESCO_3M)
 491                 hdev->esco_type |= (ESCO_3EV3);
 492
 493         if (hdev->features[5] & LMP_EDR_3S_ESCO)
 494                 hdev->esco_type |= (ESCO_2EV5 | ESCO_3EV5);
 495
 496         BT_DBG("%s features 0x%.2x%.2x%.2x%.2x%.2x%.2x%.2x%.2x", hdev->name,
 497                                         hdev->features[0], hdev->features[1],
 498                                         hdev->features[2], hdev->features[3],
 499                                         hdev->features[4], hdev->features[5],
 500                                         hdev->features[6], hdev->features[7]);
 501 }
 502
 503 static void hci_cc_read_buffer_size(struct hci_dev *hdev, struct sk_buff *skb)
 504 {
 505         struct hci_rp_read_buffer_size *rp = (void *) skb->data;
 506
 507         BT_DBG("%s status 0x%x", hdev->name, rp->status);
 508
 509         if (rp->status)
 510                 return;
 511
 512         hdev->acl_mtu  = __le16_to_cpu(rp->acl_mtu);
 513         hdev->sco_mtu  = rp->sco_mtu;
 514         hdev->acl_pkts = __le16_to_cpu(rp->acl_max_pkt);
 515         hdev->sco_pkts = __le16_to_cpu(rp->sco_max_pkt);
 516
 517         if (test_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks)) {
 518                 hdev->sco_mtu  = 64;
 519                 hdev->sco_pkts = 8;
 520         }
 521
 522         hdev->acl_cnt = hdev->acl_pkts;
 523         hdev->sco_cnt = hdev->sco_pkts;
 524
 525         BT_DBG("%s acl mtu %d:%d sco mtu %d:%d", hdev->name,
 526                                         hdev->acl_mtu, hdev->acl_pkts,
 527                                         hdev->sco_mtu, hdev->sco_pkts);
 528 }
 529
 530 static void hci_cc_read_bd_addr(struct hci_dev *hdev, struct sk_buff *skb)
 531 {
 532         struct hci_rp_read_bd_addr *rp = (void *) skb->data;
 533
 534         BT_DBG("%s status 0x%x", hdev->name, rp->status);
 535
 536         if (!rp->status)
 537                 bacpy(&hdev->bdaddr, &rp->bdaddr);
 538
 539         hci_req_complete(hdev, rp->status);
 540 }
 541
 542 static inline void hci_cs_inquiry(struct hci_dev *hdev, __u8 status)
 543 {
 544         BT_DBG("%s status 0x%x", hdev->name, status);
 545
 546         if (status) {
 547                 hci_req_complete(hdev, status);
 548
 549                 hci_conn_check_pending(hdev);
 550         } else
 551                 set_bit(HCI_INQUIRY, &hdev->flags);
 552 }
 553
 554 static inline void hci_cs_create_conn(struct hci_dev *hdev, __u8 status)
 555 {
 556         struct hci_cp_create_conn *cp;
 557         struct hci_conn *conn;
 558
 559         BT_DBG("%s status 0x%x", hdev->name, status);
 560
 561         cp = hci_sent_cmd_data(hdev, HCI_OP_CREATE_CONN);
 562         if (!cp)
 563                 return;
 564
 565         hci_dev_lock(hdev);
 566
 567         conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
 568
 569         BT_DBG("%s bdaddr %s conn %p", hdev->name, batostr(&cp->bdaddr), conn);
 570
 571         if (status) {
 572                 if (conn && conn->state == BT_CONNECT) {
 573                         if (status != 0x0c || conn->attempt > 2) {
 574                                 conn->state = BT_CLOSED;
 575                                 hci_proto_connect_cfm(conn, status);
 576                                 hci_conn_del(conn);
 577                         } else
 578                                 conn->state = BT_CONNECT2;
 579                 }
 580         } else {
 581                 if (!conn) {
 582                         conn = hci_conn_add(hdev, ACL_LINK, &cp->bdaddr);
 583                         if (conn) {
 584                                 conn->out = 1;
 585                                 conn->link_mode |= HCI_LM_MASTER;
 586                         } else
 587                                 BT_ERR("No memmory for new connection");
 588                 }
 589         }
 590
 591         hci_dev_unlock(hdev);
 592 }
 593
 594 static void hci_cs_add_sco(struct hci_dev *hdev, __u8 status)
 595 {
 596         struct hci_cp_add_sco *cp;
 597         struct hci_conn *acl, *sco;
 598         __u16 handle;
 599
 600         BT_DBG("%s status 0x%x", hdev->name, status);
 601
 602         if (!status)
 603                 return;
 604
 605         cp = hci_sent_cmd_data(hdev, HCI_OP_ADD_SCO);
 606         if (!cp)
 607                 return;
 608
 609         handle = __le16_to_cpu(cp->handle);
 610
 611         BT_DBG("%s handle %d", hdev->name, handle);
 612
 613         hci_dev_lock(hdev);
 614
 615         acl = hci_conn_hash_lookup_handle(hdev, handle);
 616         if (acl && (sco = acl->link)) {
 617                 sco->state = BT_CLOSED;
 618
 619                 hci_proto_connect_cfm(sco, status);
 620                 hci_conn_del(sco);
 621         }
 622
 623         hci_dev_unlock(hdev);
 624 }
 625
 626 static void hci_cs_auth_requested(struct hci_dev *hdev, __u8 status)
 627 {
 628         struct hci_cp_auth_requested *cp;
 629         struct hci_conn *conn;
 630
 631         BT_DBG("%s status 0x%x", hdev->name, status);
 632
 633         if (!status)
 634                 return;
 635
 636         cp = hci_sent_cmd_data(hdev, HCI_OP_AUTH_REQUESTED);
 637         if (!cp)
 638                 return;
 639
 640         hci_dev_lock(hdev);
 641
 642         conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
 643         if (conn) {
 644                 if (conn->state == BT_CONFIG) {
 645                         hci_proto_connect_cfm(conn, status);
 646                         hci_conn_put(conn);
 647                 }
 648         }
 649
 650         hci_dev_unlock(hdev);
 651 }
 652
 653 static void hci_cs_set_conn_encrypt(struct hci_dev *hdev, __u8 status)
 654 {
 655         struct hci_cp_set_conn_encrypt *cp;
 656         struct hci_conn *conn;
 657
 658         BT_DBG("%s status 0x%x", hdev->name, status);
 659
 660         if (!status)
 661                 return;
 662
 663         cp = hci_sent_cmd_data(hdev, HCI_OP_SET_CONN_ENCRYPT);
 664         if (!cp)
 665                 return;
 666
 667         hci_dev_lock(hdev);
 668
 669         conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
 670         if (conn) {
 671                 if (conn->state == BT_CONFIG) {
 672                         hci_proto_connect_cfm(conn, status);
 673                         hci_conn_put(conn);
 674                 }
 675         }
 676
 677         hci_dev_unlock(hdev);
 678 }
 679
 680 static void hci_cs_remote_name_req(struct hci_dev *hdev, __u8 status)
 681 {
 682         BT_DBG("%s status 0x%x", hdev->name, status);
 683 }
 684
 685 static void hci_cs_read_remote_features(struct hci_dev *hdev, __u8 status)
 686 {
 687         struct hci_cp_read_remote_features *cp;
 688         struct hci_conn *conn;
 689
 690         BT_DBG("%s status 0x%x", hdev->name, status);
 691
 692         if (!status)
 693                 return;
 694
 695         cp = hci_sent_cmd_data(hdev, HCI_OP_READ_REMOTE_FEATURES);
 696         if (!cp)
 697                 return;
 698
 699         hci_dev_lock(hdev);
 700
 701         conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
 702         if (conn) {
 703                 if (conn->state == BT_CONFIG) {
 704                         hci_proto_connect_cfm(conn, status);
 705                         hci_conn_put(conn);
 706                 }
 707         }
 708
 709         hci_dev_unlock(hdev);
 710 }
 711
 712 static void hci_cs_read_remote_ext_features(struct hci_dev *hdev, __u8 status)
 713 {
 714         struct hci_cp_read_remote_ext_features *cp;
 715         struct hci_conn *conn;
 716
 717         BT_DBG("%s status 0x%x", hdev->name, status);
 718
 719         if (!status)
 720                 return;
 721
 722         cp = hci_sent_cmd_data(hdev, HCI_OP_READ_REMOTE_EXT_FEATURES);
 723         if (!cp)
 724                 return;
 725
 726         hci_dev_lock(hdev);
 727
 728         conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
 729         if (conn) {
 730                 if (conn->state == BT_CONFIG) {
 731                         hci_proto_connect_cfm(conn, status);
 732                         hci_conn_put(conn);
 733                 }
 734         }
 735
 736         hci_dev_unlock(hdev);
 737 }
 738
 739 static void hci_cs_setup_sync_conn(struct hci_dev *hdev, __u8 status)
 740 {
 741         struct hci_cp_setup_sync_conn *cp;
 742         struct hci_conn *acl, *sco;
 743         __u16 handle;
 744
 745         BT_DBG("%s status 0x%x", hdev->name, status);
 746
 747         if (!status)
 748                 return;
 749
 750         cp = hci_sent_cmd_data(hdev, HCI_OP_SETUP_SYNC_CONN);
 751         if (!cp)
 752                 return;
 753
 754         handle = __le16_to_cpu(cp->handle);
 755
 756         BT_DBG("%s handle %d", hdev->name, handle);
 757
 758         hci_dev_lock(hdev);
 759
 760         acl = hci_conn_hash_lookup_handle(hdev, handle);
 761         if (acl && (sco = acl->link)) {
 762                 sco->state = BT_CLOSED;
 763
 764                 hci_proto_connect_cfm(sco, status);
 765                 hci_conn_del(sco);
 766         }
 767
 768         hci_dev_unlock(hdev);
 769 }
 770
 771 static void hci_cs_sniff_mode(struct hci_dev *hdev, __u8 status)
 772 {
 773         struct hci_cp_sniff_mode *cp;
 774         struct hci_conn *conn;
 775
 776         BT_DBG("%s status 0x%x", hdev->name, status);
 777
 778         if (!status)
 779                 return;
 780
 781         cp = hci_sent_cmd_data(hdev, HCI_OP_SNIFF_MODE);
 782         if (!cp)
 783                 return;
 784
 785         hci_dev_lock(hdev);
 786
 787         conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
 788         if (conn)
 789                 clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->pend);
 790
 791         hci_dev_unlock(hdev);
 792 }
 793
 794 static void hci_cs_exit_sniff_mode(struct hci_dev *hdev, __u8 status)
 795 {
 796         struct hci_cp_exit_sniff_mode *cp;
 797         struct hci_conn *conn;
 798
 799         BT_DBG("%s status 0x%x", hdev->name, status);
 800
 801         if (!status)
 802                 return;
 803
 804         cp = hci_sent_cmd_data(hdev, HCI_OP_EXIT_SNIFF_MODE);
 805         if (!cp)
 806                 return;
 807
 808         hci_dev_lock(hdev);
 809
 810         conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
 811         if (conn)
 812                 clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->pend);
 813
 814         hci_dev_unlock(hdev);
 815 }
 816
 817 static inline void hci_inquiry_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
 818 {
 819         __u8 status = *((__u8 *) skb->data);
 820
 821         BT_DBG("%s status %d", hdev->name, status);
 822
 823         clear_bit(HCI_INQUIRY, &hdev->flags);
 824
 825         hci_req_complete(hdev, status);
 826
 827         hci_conn_check_pending(hdev);
 828 }
 829
 830 static inline void hci_inquiry_result_evt(struct hci_dev *hdev, struct sk_buff *skb)
 831 {
 832         struct inquiry_data data;
 833         struct inquiry_info *info = (void *) (skb->data + 1);
 834         int num_rsp = *((__u8 *) skb->data);
 835
 836         BT_DBG("%s num_rsp %d", hdev->name, num_rsp);
 837
 838         if (!num_rsp)
 839                 return;
 840
 841         hci_dev_lock(hdev);
 842
 843         for (; num_rsp; num_rsp--) {
 844                 bacpy(&data.bdaddr, &info->bdaddr);
 845                 data.pscan_rep_mode     = info->pscan_rep_mode;
 846                 data.pscan_period_mode  = info->pscan_period_mode;
 847                 data.pscan_mode         = info->pscan_mode;
 848                 memcpy(data.dev_class, info->dev_class, 3);
 849                 data.clock_offset       = info->clock_offset;
 850                 data.rssi               = 0x00;
 851                 data.ssp_mode           = 0x00;
 852                 info++;
 853                 hci_inquiry_cache_update(hdev, &data);
 854         }
 855
 856         hci_dev_unlock(hdev);
 857 }
 858
 859 static inline void hci_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
 860 {
 861         struct hci_ev_conn_complete *ev = (void *) skb->data;
 862         struct hci_conn *conn;
 863
 864         BT_DBG("%s", hdev->name);
 865
 866         hci_dev_lock(hdev);
 867
 868         conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr);
 869         if (!conn) {
 870                 if (ev->link_type != SCO_LINK)
 871                         goto unlock;
 872
 873                 conn = hci_conn_hash_lookup_ba(hdev, ESCO_LINK, &ev->bdaddr);
 874                 if (!conn)
 875                         goto unlock;
 876
 877                 conn->type = SCO_LINK;
 878         }
 879
 880         if (!ev->status) {
 881                 conn->handle = __le16_to_cpu(ev->handle);
 882
 883                 if (conn->type == ACL_LINK) {
 884                         conn->state = BT_CONFIG;
 885                         hci_conn_hold(conn);
 886                         conn->disc_timeout = HCI_DISCONN_TIMEOUT;
 887                 } else
 888                         conn->state = BT_CONNECTED;
 889
 890                 hci_conn_hold_device(conn);
 891                 hci_conn_add_sysfs(conn);
 892
 893                 if (test_bit(HCI_AUTH, &hdev->flags))
 894                         conn->link_mode |= HCI_LM_AUTH;
 895
 896                 if (test_bit(HCI_ENCRYPT, &hdev->flags))
 897                         conn->link_mode |= HCI_LM_ENCRYPT;
 898
 899                 /* Get remote features */
 900                 if (conn->type == ACL_LINK) {
 901                         struct hci_cp_read_remote_features cp;
 902                         cp.handle = ev->handle;
 903                         hci_send_cmd(hdev, HCI_OP_READ_REMOTE_FEATURES,
 904                                                         sizeof(cp), &cp);
 905                 }
 906
 907                 /* Set packet type for incoming connection */
 908                 if (!conn->out && hdev->hci_ver < 3) {
 909                         struct hci_cp_change_conn_ptype cp;
 910                         cp.handle = ev->handle;
 911                         cp.pkt_type = cpu_to_le16(conn->pkt_type);
 912                         hci_send_cmd(hdev, HCI_OP_CHANGE_CONN_PTYPE,
 913                                                         sizeof(cp), &cp);
 914                 }
 915         } else
 916                 conn->state = BT_CLOSED;
 917
 918         if (conn->type == ACL_LINK) {
 919                 struct hci_conn *sco = conn->link;
 920                 if (sco) {
 921                         if (!ev->status) {
 922                                 if (lmp_esco_capable(hdev))
 923                                         hci_setup_sync(sco, conn->handle);
 924                                 else
 925                                         hci_add_sco(sco, conn->handle);
 926                         } else {
 927                                 hci_proto_connect_cfm(sco, ev->status);
 928                                 hci_conn_del(sco);
 929                         }
 930                 }
 931         }
 932
 933         if (ev->status) {
 934                 hci_proto_connect_cfm(conn, ev->status);
 935                 hci_conn_del(conn);
 936         } else if (ev->link_type != ACL_LINK)
 937                 hci_proto_connect_cfm(conn, ev->status);
 938
 939 unlock:
 940         hci_dev_unlock(hdev);
 941
 942         hci_conn_check_pending(hdev);
 943 }
 944
 945 static inline void hci_conn_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
 946 {
 947         struct hci_ev_conn_request *ev = (void *) skb->data;
 948         int mask = hdev->link_mode;
 949
 950         BT_DBG("%s bdaddr %s type 0x%x", hdev->name,
 951                                         batostr(&ev->bdaddr), ev->link_type);
 952
 953         mask |= hci_proto_connect_ind(hdev, &ev->bdaddr, ev->link_type);
 954
 955         if (mask & HCI_LM_ACCEPT) {
 956                 /* Connection accepted */
 957                 struct inquiry_entry *ie;
 958                 struct hci_conn *conn;
 959
 960                 hci_dev_lock(hdev);
 961
 962                 if ((ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr)))
 963                         memcpy(ie->data.dev_class, ev->dev_class, 3);
 964
 965                 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr);
 966                 if (!conn) {
 967                         if (!(conn = hci_conn_add(hdev, ev->link_type, &ev->bdaddr))) {
 968                                 BT_ERR("No memmory for new connection");
 969                                 hci_dev_unlock(hdev);
 970                                 return;
 971                         }
 972                 }
 973
 974                 memcpy(conn->dev_class, ev->dev_class, 3);
 975                 conn->state = BT_CONNECT;
 976
 977                 hci_dev_unlock(hdev);
 978
 979                 if (ev->link_type == ACL_LINK || !lmp_esco_capable(hdev)) {
 980                         struct hci_cp_accept_conn_req cp;
 981
 982                         bacpy(&cp.bdaddr, &ev->bdaddr);
 983
 984                         if (lmp_rswitch_capable(hdev) && (mask & HCI_LM_MASTER))
 985                                 cp.role = 0x00; /* Become master */
 986                         else
 987                                 cp.role = 0x01; /* Remain slave */
 988
 989                         hci_send_cmd(hdev, HCI_OP_ACCEPT_CONN_REQ,
 990                                                         sizeof(cp), &cp);
 991                 } else {
 992                         struct hci_cp_accept_sync_conn_req cp;
 993
 994                         bacpy(&cp.bdaddr, &ev->bdaddr);
 995                         cp.pkt_type = cpu_to_le16(conn->pkt_type);
 996
 997                         cp.tx_bandwidth   = cpu_to_le32(0x00001f40);
 998                         cp.rx_bandwidth   = cpu_to_le32(0x00001f40);
 999                         cp.max_latency    = cpu_to_le16(0xffff);
1000                         cp.content_format = cpu_to_le16(hdev->voice_setting);
1001                         cp.retrans_effort = 0xff;
1002
1003                         hci_send_cmd(hdev, HCI_OP_ACCEPT_SYNC_CONN_REQ,
1004                                                         sizeof(cp), &cp);
1005                 }
1006         } else {
1007                 /* Connection rejected */
1008                 struct hci_cp_reject_conn_req cp;
1009
1010                 bacpy(&cp.bdaddr, &ev->bdaddr);
1011                 cp.reason = 0x0f;
1012                 hci_send_cmd(hdev, HCI_OP_REJECT_CONN_REQ, sizeof(cp), &cp);
1013         }
1014 }
1015
1016 static inline void hci_disconn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
1017 {
1018         struct hci_ev_disconn_complete *ev = (void *) skb->data;
1019         struct hci_conn *conn;
1020
1021         BT_DBG("%s status %d", hdev->name, ev->status);
1022
1023         if (ev->status)
1024                 return;
1025
1026         hci_dev_lock(hdev);
1027
1028         conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
1029         if (conn) {
1030                 conn->state = BT_CLOSED;
1031
1032                 hci_proto_disconn_cfm(conn, ev->reason);
1033                 hci_conn_del(conn);
1034         }
1035
1036         hci_dev_unlock(hdev);
1037 }
1038
1039 static inline void hci_auth_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
1040 {
1041         struct hci_ev_auth_complete *ev = (void *) skb->data;
1042         struct hci_conn *conn;
1043
1044         BT_DBG("%s status %d", hdev->name, ev->status);
1045
1046         hci_dev_lock(hdev);
1047
1048         conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
1049         if (conn) {
1050                 if (!ev->status)
1051                         conn->link_mode |= HCI_LM_AUTH;
1052
1053                 clear_bit(HCI_CONN_AUTH_PEND, &conn->pend);
1054
1055                 if (conn->state == BT_CONFIG) {
1056                         if (!ev->status && hdev->ssp_mode > 0 &&
1057                                                         conn->ssp_mode > 0) {
1058                                 struct hci_cp_set_conn_encrypt cp;
1059                                 cp.handle  = ev->handle;
1060                                 cp.encrypt = 0x01;
1061                                 hci_send_cmd(hdev, HCI_OP_SET_CONN_ENCRYPT,
1062                                                         sizeof(cp), &cp);
1063                         } else {
1064                                 conn->state = BT_CONNECTED;
1065                                 hci_proto_connect_cfm(conn, ev->status);
1066                                 hci_conn_put(conn);
1067                         }
1068                 } else {
1069                         hci_auth_cfm(conn, ev->status);
1070
1071                         hci_conn_hold(conn);
1072                         conn->disc_timeout = HCI_DISCONN_TIMEOUT;
1073                         hci_conn_put(conn);
1074                 }
1075
1076                 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend)) {
1077                         if (!ev->status) {
1078                                 struct hci_cp_set_conn_encrypt cp;
1079                                 cp.handle  = ev->handle;
1080                                 cp.encrypt = 0x01;
1081                                 hci_send_cmd(hdev, HCI_OP_SET_CONN_ENCRYPT,
1082                                                         sizeof(cp), &cp);
1083                         } else {
1084                                 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend);
1085                                 hci_encrypt_cfm(conn, ev->status, 0x00);
1086                         }
1087                 }
1088         }
1089
1090         hci_dev_unlock(hdev);
1091 }
1092
1093 static inline void hci_remote_name_evt(struct hci_dev *hdev, struct sk_buff *skb)
1094 {
1095         BT_DBG("%s", hdev->name);
1096
1097         hci_conn_check_pending(hdev);
1098 }
1099
1100 static inline void hci_encrypt_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
1101 {
1102         struct hci_ev_encrypt_change *ev = (void *) skb->data;
1103         struct hci_conn *conn;
1104
1105         BT_DBG("%s status %d", hdev->name, ev->status);
1106
1107         hci_dev_lock(hdev);
1108
1109         conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
1110         if (conn) {
1111                 if (!ev->status) {
1112                         if (ev->encrypt) {
1113                                 /* Encryption implies authentication */
1114                                 conn->link_mode |= HCI_LM_AUTH;
1115                                 conn->link_mode |= HCI_LM_ENCRYPT;
1116                         } else
1117                                 conn->link_mode &= ~HCI_LM_ENCRYPT;
1118                 }
1119
1120                 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend);
1121
1122                 if (conn->state == BT_CONFIG) {
1123                         if (!ev->status)
1124                                 conn->state = BT_CONNECTED;
1125
1126                         hci_proto_connect_cfm(conn, ev->status);
1127                         hci_conn_put(conn);
1128                 } else
1129                         hci_encrypt_cfm(conn, ev->status, ev->encrypt);
1130         }
1131
1132         hci_dev_unlock(hdev);
1133 }
1134
1135 static inline void hci_change_link_key_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
1136 {
1137         struct hci_ev_change_link_key_complete *ev = (void *) skb->data;
1138         struct hci_conn *conn;
1139
1140         BT_DBG("%s status %d", hdev->name, ev->status);
1141
1142         hci_dev_lock(hdev);
1143
1144         conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
1145         if (conn) {
1146                 if (!ev->status)
1147                         conn->link_mode |= HCI_LM_SECURE;
1148
1149                 clear_bit(HCI_CONN_AUTH_PEND, &conn->pend);
1150
1151                 hci_key_change_cfm(conn, ev->status);
1152         }
1153
1154         hci_dev_unlock(hdev);
1155 }
1156
1157 static inline void hci_remote_features_evt(struct hci_dev *hdev, struct sk_buff *skb)
1158 {
1159         struct hci_ev_remote_features *ev = (void *) skb->data;
1160         struct hci_conn *conn;
1161
1162         BT_DBG("%s status %d", hdev->name, ev->status);
1163
1164         hci_dev_lock(hdev);
1165
1166         conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
1167         if (conn) {
1168                 if (!ev->status)
1169                         memcpy(conn->features, ev->features, 8);
1170
1171                 if (conn->state == BT_CONFIG) {
1172                         if (!ev->status && lmp_ssp_capable(hdev) &&
1173                                                 lmp_ssp_capable(conn)) {
1174                                 struct hci_cp_read_remote_ext_features cp;
1175                                 cp.handle = ev->handle;
1176                                 cp.page = 0x01;
1177                                 hci_send_cmd(hdev,
1178                                         HCI_OP_READ_REMOTE_EXT_FEATURES,
1179                                                         sizeof(cp), &cp);
1180                         } else {
1181                                 conn->state = BT_CONNECTED;
1182                                 hci_proto_connect_cfm(conn, ev->status);
1183                                 hci_conn_put(conn);
1184                         }
1185                 }
1186         }
1187
1188         hci_dev_unlock(hdev);
1189 }
1190
1191 static inline void hci_remote_version_evt(struct hci_dev *hdev, struct sk_buff *skb)
1192 {
1193         BT_DBG("%s", hdev->name);
1194 }
1195
1196 static inline void hci_qos_setup_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
1197 {
1198         BT_DBG("%s", hdev->name);
1199 }
1200
1201 static inline void hci_cmd_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
1202 {
1203         struct hci_ev_cmd_complete *ev = (void *) skb->data;
1204         __u16 opcode;
1205
1206         skb_pull(skb, sizeof(*ev));
1207
1208         opcode = __le16_to_cpu(ev->opcode);
1209
1210         switch (opcode) {
1211         case HCI_OP_INQUIRY_CANCEL:
1212                 hci_cc_inquiry_cancel(hdev, skb);
1213                 break;
1214
1215         case HCI_OP_EXIT_PERIODIC_INQ:
1216                 hci_cc_exit_periodic_inq(hdev, skb);
1217                 break;
1218
1219         case HCI_OP_REMOTE_NAME_REQ_CANCEL:
1220                 hci_cc_remote_name_req_cancel(hdev, skb);
1221                 break;
1222
1223         case HCI_OP_ROLE_DISCOVERY:
1224                 hci_cc_role_discovery(hdev, skb);
1225                 break;
1226
1227         case HCI_OP_READ_LINK_POLICY:
1228                 hci_cc_read_link_policy(hdev, skb);
1229                 break;
1230
1231         case HCI_OP_WRITE_LINK_POLICY:
1232                 hci_cc_write_link_policy(hdev, skb);
1233                 break;
1234
1235         case HCI_OP_READ_DEF_LINK_POLICY:
1236                 hci_cc_read_def_link_policy(hdev, skb);
1237                 break;
1238
1239         case HCI_OP_WRITE_DEF_LINK_POLICY:
1240                 hci_cc_write_def_link_policy(hdev, skb);
1241                 break;
1242
1243         case HCI_OP_RESET:
1244                 hci_cc_reset(hdev, skb);
1245                 break;
1246
1247         case HCI_OP_WRITE_LOCAL_NAME:
1248                 hci_cc_write_local_name(hdev, skb);
1249                 break;
1250
1251         case HCI_OP_READ_LOCAL_NAME:
1252                 hci_cc_read_local_name(hdev, skb);
1253                 break;
1254
1255         case HCI_OP_WRITE_AUTH_ENABLE:
1256                 hci_cc_write_auth_enable(hdev, skb);
1257                 break;
1258
1259         case HCI_OP_WRITE_ENCRYPT_MODE:
1260                 hci_cc_write_encrypt_mode(hdev, skb);
1261                 break;
1262
1263         case HCI_OP_WRITE_SCAN_ENABLE:
1264                 hci_cc_write_scan_enable(hdev, skb);
1265                 break;
1266
1267         case HCI_OP_READ_CLASS_OF_DEV:
1268                 hci_cc_read_class_of_dev(hdev, skb);
1269                 break;
1270
1271         case HCI_OP_WRITE_CLASS_OF_DEV:
1272                 hci_cc_write_class_of_dev(hdev, skb);
1273                 break;
1274
1275         case HCI_OP_READ_VOICE_SETTING:
1276                 hci_cc_read_voice_setting(hdev, skb);
1277                 break;
1278
1279         case HCI_OP_WRITE_VOICE_SETTING:
1280                 hci_cc_write_voice_setting(hdev, skb);
1281                 break;
1282
1283         case HCI_OP_HOST_BUFFER_SIZE:
1284                 hci_cc_host_buffer_size(hdev, skb);
1285                 break;
1286
1287         case HCI_OP_READ_SSP_MODE:
1288                 hci_cc_read_ssp_mode(hdev, skb);
1289                 break;
1290
1291         case HCI_OP_WRITE_SSP_MODE:
1292                 hci_cc_write_ssp_mode(hdev, skb);
1293                 break;
1294
1295         case HCI_OP_READ_LOCAL_VERSION:
1296                 hci_cc_read_local_version(hdev, skb);
1297                 break;
1298
1299         case HCI_OP_READ_LOCAL_COMMANDS:
1300                 hci_cc_read_local_commands(hdev, skb);
1301                 break;
1302
1303         case HCI_OP_READ_LOCAL_FEATURES:
1304                 hci_cc_read_local_features(hdev, skb);
1305                 break;
1306
1307         case HCI_OP_READ_BUFFER_SIZE:
1308                 hci_cc_read_buffer_size(hdev, skb);
1309                 break;
1310
1311         case HCI_OP_READ_BD_ADDR:
1312                 hci_cc_read_bd_addr(hdev, skb);
1313                 break;
1314
1315         default:
1316                 BT_DBG("%s opcode 0x%x", hdev->name, opcode);
1317                 break;
1318         }
1319
1320         if (ev->ncmd) {
1321                 atomic_set(&hdev->cmd_cnt, 1);
1322                 if (!skb_queue_empty(&hdev->cmd_q))
1323                         tasklet_schedule(&hdev->cmd_task);
1324         }
1325 }
1326
1327 static inline void hci_cmd_status_evt(struct hci_dev *hdev, struct sk_buff *skb)
1328 {
1329         struct hci_ev_cmd_status *ev = (void *) skb->data;
1330         __u16 opcode;
1331
1332         skb_pull(skb, sizeof(*ev));
1333
1334         opcode = __le16_to_cpu(ev->opcode);
1335
1336         switch (opcode) {
1337         case HCI_OP_INQUIRY:
1338                 hci_cs_inquiry(hdev, ev->status);
1339                 break;
1340
1341         case HCI_OP_CREATE_CONN:
1342                 hci_cs_create_conn(hdev, ev->status);
1343                 break;
1344
1345         case HCI_OP_ADD_SCO:
1346                 hci_cs_add_sco(hdev, ev->status);
1347                 break;
1348
1349         case HCI_OP_AUTH_REQUESTED:
1350                 hci_cs_auth_requested(hdev, ev->status);
1351                 break;
1352
1353         case HCI_OP_SET_CONN_ENCRYPT:
1354                 hci_cs_set_conn_encrypt(hdev, ev->status);
1355                 break;
1356
1357         case HCI_OP_REMOTE_NAME_REQ:
1358                 hci_cs_remote_name_req(hdev, ev->status);
1359                 break;
1360
1361         case HCI_OP_READ_REMOTE_FEATURES:
1362                 hci_cs_read_remote_features(hdev, ev->status);
1363                 break;
1364
1365         case HCI_OP_READ_REMOTE_EXT_FEATURES:
1366                 hci_cs_read_remote_ext_features(hdev, ev->status);
1367                 break;
1368
1369         case HCI_OP_SETUP_SYNC_CONN:
1370                 hci_cs_setup_sync_conn(hdev, ev->status);
1371                 break;
1372
1373         case HCI_OP_SNIFF_MODE:
1374                 hci_cs_sniff_mode(hdev, ev->status);
1375                 break;
1376
1377         case HCI_OP_EXIT_SNIFF_MODE:
1378                 hci_cs_exit_sniff_mode(hdev, ev->status);
1379                 break;
1380
1381         default:
1382                 BT_DBG("%s opcode 0x%x", hdev->name, opcode);
1383                 break;
1384         }
1385
1386         if (ev->ncmd) {
1387                 atomic_set(&hdev->cmd_cnt, 1);
1388                 if (!skb_queue_empty(&hdev->cmd_q))
1389                         tasklet_schedule(&hdev->cmd_task);
1390         }
1391 }
1392
1393 static inline void hci_role_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
1394 {
1395         struct hci_ev_role_change *ev = (void *) skb->data;
1396         struct hci_conn *conn;
1397
1398         BT_DBG("%s status %d", hdev->name, ev->status);
1399
1400         hci_dev_lock(hdev);
1401
1402         conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
1403         if (conn) {
1404                 if (!ev->status) {
1405                         if (ev->role)
1406                                 conn->link_mode &= ~HCI_LM_MASTER;
1407                         else
1408                                 conn->link_mode |= HCI_LM_MASTER;
1409                 }
1410
1411                 clear_bit(HCI_CONN_RSWITCH_PEND, &conn->pend);
1412
1413                 hci_role_switch_cfm(conn, ev->status, ev->role);
1414         }
1415
1416         hci_dev_unlock(hdev);
1417 }
1418
1419 static inline void hci_num_comp_pkts_evt(struct hci_dev *hdev, struct sk_buff *skb)
1420 {
1421         struct hci_ev_num_comp_pkts *ev = (void *) skb->data;
1422         __le16 *ptr;
1423         int i;
1424
1425         skb_pull(skb, sizeof(*ev));
1426
1427         BT_DBG("%s num_hndl %d", hdev->name, ev->num_hndl);
1428
1429         if (skb->len < ev->num_hndl * 4) {
1430                 BT_DBG("%s bad parameters", hdev->name);
1431                 return;
1432         }
1433
1434         tasklet_disable(&hdev->tx_task);
1435
1436         for (i = 0, ptr = (__le16 *) skb->data; i < ev->num_hndl; i++) {
1437                 struct hci_conn *conn;
1438                 __u16  handle, count;
1439
1440                 handle = get_unaligned_le16(ptr++);
1441                 count  = get_unaligned_le16(ptr++);
1442
1443                 conn = hci_conn_hash_lookup_handle(hdev, handle);
1444                 if (conn) {
1445                         conn->sent -= count;
1446
1447                         if (conn->type == ACL_LINK) {
1448                                 if ((hdev->acl_cnt += count) > hdev->acl_pkts)
1449                                         hdev->acl_cnt = hdev->acl_pkts;
1450                         } else {
1451                                 if ((hdev->sco_cnt += count) > hdev->sco_pkts)
1452                                         hdev->sco_cnt = hdev->sco_pkts;
1453                         }
1454                 }
1455         }
1456
1457         tasklet_schedule(&hdev->tx_task);
1458
1459         tasklet_enable(&hdev->tx_task);
1460 }
1461
1462 static inline void hci_mode_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
1463 {
1464         struct hci_ev_mode_change *ev = (void *) skb->data;
1465         struct hci_conn *conn;
1466
1467         BT_DBG("%s status %d", hdev->name, ev->status);
1468
1469         hci_dev_lock(hdev);
1470
1471         conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
1472         if (conn) {
1473                 conn->mode = ev->mode;
1474                 conn->interval = __le16_to_cpu(ev->interval);
1475
1476                 if (!test_and_clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->pend)) {
1477                         if (conn->mode == HCI_CM_ACTIVE)
1478                                 conn->power_save = 1;
1479                         else
1480                                 conn->power_save = 0;
1481                 }
1482         }
1483
1484         hci_dev_unlock(hdev);
1485 }
1486
1487 static inline void hci_pin_code_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
1488 {
1489         struct hci_ev_pin_code_req *ev = (void *) skb->data;
1490         struct hci_conn *conn;
1491
1492         BT_DBG("%s", hdev->name);
1493
1494         hci_dev_lock(hdev);
1495
1496         conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
1497         if (conn && conn->state == BT_CONNECTED) {
1498                 hci_conn_hold(conn);
1499                 conn->disc_timeout = HCI_PAIRING_TIMEOUT;
1500                 hci_conn_put(conn);
1501         }
1502
1503         hci_dev_unlock(hdev);
1504 }
1505
1506 static inline void hci_link_key_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
1507 {
1508         BT_DBG("%s", hdev->name);
1509 }
1510
1511 static inline void hci_link_key_notify_evt(struct hci_dev *hdev, struct sk_buff *skb)
1512 {
1513         struct hci_ev_link_key_notify *ev = (void *) skb->data;
1514         struct hci_conn *conn;
1515
1516         BT_DBG("%s", hdev->name);
1517
1518         hci_dev_lock(hdev);
1519
1520         conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
1521         if (conn) {
1522                 hci_conn_hold(conn);
1523                 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
1524                 hci_conn_put(conn);
1525         }
1526
1527         hci_dev_unlock(hdev);
1528 }
1529
1530 static inline void hci_clock_offset_evt(struct hci_dev *hdev, struct sk_buff *skb)
1531 {
1532         struct hci_ev_clock_offset *ev = (void *) skb->data;
1533         struct hci_conn *conn;
1534
1535         BT_DBG("%s status %d", hdev->name, ev->status);
1536
1537         hci_dev_lock(hdev);
1538
1539         conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
1540         if (conn && !ev->status) {
1541                 struct inquiry_entry *ie;
1542
1543                 if ((ie = hci_inquiry_cache_lookup(hdev, &conn->dst))) {
1544                         ie->data.clock_offset = ev->clock_offset;
1545                         ie->timestamp = jiffies;
1546                 }
1547         }
1548
1549         hci_dev_unlock(hdev);
1550 }
1551
1552 static inline void hci_pkt_type_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
1553 {
1554         struct hci_ev_pkt_type_change *ev = (void *) skb->data;
1555         struct hci_conn *conn;
1556
1557         BT_DBG("%s status %d", hdev->name, ev->status);
1558
1559         hci_dev_lock(hdev);
1560
1561         conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
1562         if (conn && !ev->status)
1563                 conn->pkt_type = __le16_to_cpu(ev->pkt_type);
1564
1565         hci_dev_unlock(hdev);
1566 }
1567
1568 static inline void hci_pscan_rep_mode_evt(struct hci_dev *hdev, struct sk_buff *skb)
1569 {
1570         struct hci_ev_pscan_rep_mode *ev = (void *) skb->data;
1571         struct inquiry_entry *ie;
1572
1573         BT_DBG("%s", hdev->name);
1574
1575         hci_dev_lock(hdev);
1576
1577         if ((ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr))) {
1578                 ie->data.pscan_rep_mode = ev->pscan_rep_mode;
1579                 ie->timestamp = jiffies;
1580         }
1581
1582         hci_dev_unlock(hdev);
1583 }
1584
1585 static inline void hci_inquiry_result_with_rssi_evt(struct hci_dev *hdev, struct sk_buff *skb)
1586 {
1587         struct inquiry_data data;
1588         int num_rsp = *((__u8 *) skb->data);
1589
1590         BT_DBG("%s num_rsp %d", hdev->name, num_rsp);
1591
1592         if (!num_rsp)
1593                 return;
1594
1595         hci_dev_lock(hdev);
1596
1597         if ((skb->len - 1) / num_rsp != sizeof(struct inquiry_info_with_rssi)) {
1598                 struct inquiry_info_with_rssi_and_pscan_mode *info = (void *) (skb->data + 1);
1599
1600                 for (; num_rsp; num_rsp--) {
1601                         bacpy(&data.bdaddr, &info->bdaddr);
1602                         data.pscan_rep_mode     = info->pscan_rep_mode;
1603                         data.pscan_period_mode  = info->pscan_period_mode;
1604                         data.pscan_mode         = info->pscan_mode;
1605                         memcpy(data.dev_class, info->dev_class, 3);
1606                         data.clock_offset       = info->clock_offset;
1607                         data.rssi               = info->rssi;
1608                         data.ssp_mode           = 0x00;
1609                         info++;
1610                         hci_inquiry_cache_update(hdev, &data);
1611                 }
1612         } else {
1613                 struct inquiry_info_with_rssi *info = (void *) (skb->data + 1);
1614
1615                 for (; num_rsp; num_rsp--) {
1616                         bacpy(&data.bdaddr, &info->bdaddr);
1617                         data.pscan_rep_mode     = info->pscan_rep_mode;
1618                         data.pscan_period_mode  = info->pscan_period_mode;
1619                         data.pscan_mode         = 0x00;
1620                         memcpy(data.dev_class, info->dev_class, 3);
1621                         data.clock_offset       = info->clock_offset;
1622                         data.rssi               = info->rssi;
1623                         data.ssp_mode           = 0x00;
1624                         info++;
1625                         hci_inquiry_cache_update(hdev, &data);
1626                 }
1627         }
1628
1629         hci_dev_unlock(hdev);
1630 }
1631
1632 static inline void hci_remote_ext_features_evt(struct hci_dev *hdev, struct sk_buff *skb)
1633 {
1634         struct hci_ev_remote_ext_features *ev = (void *) skb->data;
1635         struct hci_conn *conn;
1636
1637         BT_DBG("%s", hdev->name);
1638
1639         hci_dev_lock(hdev);
1640
1641         conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
1642         if (conn) {
1643                 if (!ev->status && ev->page == 0x01) {
1644                         struct inquiry_entry *ie;
1645
1646                         if ((ie = hci_inquiry_cache_lookup(hdev, &conn->dst)))
1647                                 ie->data.ssp_mode = (ev->features[0] & 0x01);
1648
1649                         conn->ssp_mode = (ev->features[0] & 0x01);
1650                 }
1651
1652                 if (conn->state == BT_CONFIG) {
1653                         if (!ev->status && hdev->ssp_mode > 0 &&
1654                                         conn->ssp_mode > 0 && conn->out &&
1655                                         conn->sec_level != BT_SECURITY_SDP) {
1656                                 struct hci_cp_auth_requested cp;
1657                                 cp.handle = ev->handle;
1658                                 hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED,
1659                                                         sizeof(cp), &cp);
1660                         } else {
1661                                 conn->state = BT_CONNECTED;
1662                                 hci_proto_connect_cfm(conn, ev->status);
1663                                 hci_conn_put(conn);
1664                         }
1665                 }
1666         }
1667
1668         hci_dev_unlock(hdev);
1669 }
1670
1671 static inline void hci_sync_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
1672 {
1673         struct hci_ev_sync_conn_complete *ev = (void *) skb->data;
1674         struct hci_conn *conn;
1675
1676         BT_DBG("%s status %d", hdev->name, ev->status);
1677
1678         hci_dev_lock(hdev);
1679
1680         conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr);
1681         if (!conn) {
1682                 if (ev->link_type == ESCO_LINK)
1683                         goto unlock;
1684
1685                 conn = hci_conn_hash_lookup_ba(hdev, ESCO_LINK, &ev->bdaddr);
1686                 if (!conn)
1687                         goto unlock;
1688
1689                 conn->type = SCO_LINK;
1690         }
1691
1692         switch (ev->status) {
1693         case 0x00:
1694                 conn->handle = __le16_to_cpu(ev->handle);
1695                 conn->state  = BT_CONNECTED;
1696
1697                 hci_conn_hold_device(conn);
1698                 hci_conn_add_sysfs(conn);
1699                 break;
1700
1701         case 0x1c:      /* SCO interval rejected */
1702         case 0x1f:      /* Unspecified error */
1703                 if (conn->out && conn->attempt < 2) {
1704                         conn->pkt_type = (hdev->esco_type & SCO_ESCO_MASK) |
1705                                         (hdev->esco_type & EDR_ESCO_MASK);
1706                         hci_setup_sync(conn, conn->link->handle);
1707                         goto unlock;
1708                 }
1709                 /* fall through */
1710
1711         default:
1712                 conn->state = BT_CLOSED;
1713                 break;
1714         }
1715
1716         hci_proto_connect_cfm(conn, ev->status);
1717         if (ev->status)
1718                 hci_conn_del(conn);
1719
1720 unlock:
1721         hci_dev_unlock(hdev);
1722 }
1723
1724 static inline void hci_sync_conn_changed_evt(struct hci_dev *hdev, struct sk_buff *skb)
1725 {
1726         BT_DBG("%s", hdev->name);
1727 }
1728
1729 static inline void hci_sniff_subrate_evt(struct hci_dev *hdev, struct sk_buff *skb)
1730 {
1731         struct hci_ev_sniff_subrate *ev = (void *) skb->data;
1732         struct hci_conn *conn;
1733
1734         BT_DBG("%s status %d", hdev->name, ev->status);
1735
1736         hci_dev_lock(hdev);
1737
1738         conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
1739         if (conn) {
1740         }
1741
1742         hci_dev_unlock(hdev);
1743 }
1744
1745 static inline void hci_extended_inquiry_result_evt(struct hci_dev *hdev, struct sk_buff *skb)
1746 {
1747         struct inquiry_data data;
1748         struct extended_inquiry_info *info = (void *) (skb->data + 1);
1749         int num_rsp = *((__u8 *) skb->data);
1750
1751         BT_DBG("%s num_rsp %d", hdev->name, num_rsp);
1752
1753         if (!num_rsp)
1754                 return;
1755
1756         hci_dev_lock(hdev);
1757
1758         for (; num_rsp; num_rsp--) {
1759                 bacpy(&data.bdaddr, &info->bdaddr);
1760                 data.pscan_rep_mode     = info->pscan_rep_mode;
1761                 data.pscan_period_mode  = info->pscan_period_mode;
1762                 data.pscan_mode         = 0x00;
1763                 memcpy(data.dev_class, info->dev_class, 3);
1764                 data.clock_offset       = info->clock_offset;
1765                 data.rssi               = info->rssi;
1766                 data.ssp_mode           = 0x01;
1767                 info++;
1768                 hci_inquiry_cache_update(hdev, &data);
1769         }
1770
1771         hci_dev_unlock(hdev);
1772 }
1773
1774 static inline void hci_io_capa_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
1775 {
1776         struct hci_ev_io_capa_request *ev = (void *) skb->data;
1777         struct hci_conn *conn;
1778
1779         BT_DBG("%s", hdev->name);
1780
1781         hci_dev_lock(hdev);
1782
1783         conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
1784         if (conn)
1785                 hci_conn_hold(conn);
1786
1787         hci_dev_unlock(hdev);
1788 }
1789
1790 static inline void hci_simple_pair_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
1791 {
1792         struct hci_ev_simple_pair_complete *ev = (void *) skb->data;
1793         struct hci_conn *conn;
1794
1795         BT_DBG("%s", hdev->name);
1796
1797         hci_dev_lock(hdev);
1798
1799         conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
1800         if (conn)
1801                 hci_conn_put(conn);
1802
1803         hci_dev_unlock(hdev);
1804 }
1805
1806 static inline void hci_remote_host_features_evt(struct hci_dev *hdev, struct sk_buff *skb)
1807 {
1808         struct hci_ev_remote_host_features *ev = (void *) skb->data;
1809         struct inquiry_entry *ie;
1810
1811         BT_DBG("%s", hdev->name);
1812
1813         hci_dev_lock(hdev);
1814
1815         if ((ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr)))
1816                 ie->data.ssp_mode = (ev->features[0] & 0x01);
1817
1818         hci_dev_unlock(hdev);
1819 }
1820
1821 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb)
1822 {
1823         struct hci_event_hdr *hdr = (void *) skb->data;
1824         __u8 event = hdr->evt;
1825
1826         skb_pull(skb, HCI_EVENT_HDR_SIZE);
1827
1828         switch (event) {
1829         case HCI_EV_INQUIRY_COMPLETE:
1830                 hci_inquiry_complete_evt(hdev, skb);
1831                 break;
1832
1833         case HCI_EV_INQUIRY_RESULT:
1834                 hci_inquiry_result_evt(hdev, skb);
1835                 break;
1836
1837         case HCI_EV_CONN_COMPLETE:
1838                 hci_conn_complete_evt(hdev, skb);
1839                 break;
1840
1841         case HCI_EV_CONN_REQUEST:
1842                 hci_conn_request_evt(hdev, skb);
1843                 break;
1844
1845         case HCI_EV_DISCONN_COMPLETE:
1846                 hci_disconn_complete_evt(hdev, skb);
1847                 break;
1848
1849         case HCI_EV_AUTH_COMPLETE:
1850                 hci_auth_complete_evt(hdev, skb);
1851                 break;
1852
1853         case HCI_EV_REMOTE_NAME:
1854                 hci_remote_name_evt(hdev, skb);
1855                 break;
1856
1857         case HCI_EV_ENCRYPT_CHANGE:
1858                 hci_encrypt_change_evt(hdev, skb);
1859                 break;
1860
1861         case HCI_EV_CHANGE_LINK_KEY_COMPLETE:
1862                 hci_change_link_key_complete_evt(hdev, skb);
1863                 break;
1864
1865         case HCI_EV_REMOTE_FEATURES:
1866                 hci_remote_features_evt(hdev, skb);
1867                 break;
1868
1869         case HCI_EV_REMOTE_VERSION:
1870                 hci_remote_version_evt(hdev, skb);
1871                 break;
1872
1873         case HCI_EV_QOS_SETUP_COMPLETE:
1874                 hci_qos_setup_complete_evt(hdev, skb);
1875                 break;
1876
1877         case HCI_EV_CMD_COMPLETE:
1878                 hci_cmd_complete_evt(hdev, skb);
1879                 break;
1880
1881         case HCI_EV_CMD_STATUS:
1882                 hci_cmd_status_evt(hdev, skb);
1883                 break;
1884
1885         case HCI_EV_ROLE_CHANGE:
1886                 hci_role_change_evt(hdev, skb);
1887                 break;
1888
1889         case HCI_EV_NUM_COMP_PKTS:
1890                 hci_num_comp_pkts_evt(hdev, skb);
1891                 break;
1892
1893         case HCI_EV_MODE_CHANGE:
1894                 hci_mode_change_evt(hdev, skb);
1895                 break;
1896
1897         case HCI_EV_PIN_CODE_REQ:
1898                 hci_pin_code_request_evt(hdev, skb);
1899                 break;
1900
1901         case HCI_EV_LINK_KEY_REQ:
1902                 hci_link_key_request_evt(hdev, skb);
1903                 break;
1904
1905         case HCI_EV_LINK_KEY_NOTIFY:
1906                 hci_link_key_notify_evt(hdev, skb);
1907                 break;
1908
1909         case HCI_EV_CLOCK_OFFSET:
1910                 hci_clock_offset_evt(hdev, skb);
1911                 break;
1912
1913         case HCI_EV_PKT_TYPE_CHANGE:
1914                 hci_pkt_type_change_evt(hdev, skb);
1915                 break;
1916
1917         case HCI_EV_PSCAN_REP_MODE:
1918                 hci_pscan_rep_mode_evt(hdev, skb);
1919                 break;
1920
1921         case HCI_EV_INQUIRY_RESULT_WITH_RSSI:
1922                 hci_inquiry_result_with_rssi_evt(hdev, skb);
1923                 break;
1924
1925         case HCI_EV_REMOTE_EXT_FEATURES:
1926                 hci_remote_ext_features_evt(hdev, skb);
1927                 break;
1928
1929         case HCI_EV_SYNC_CONN_COMPLETE:
1930                 hci_sync_conn_complete_evt(hdev, skb);
1931                 break;
1932
1933         case HCI_EV_SYNC_CONN_CHANGED:
1934                 hci_sync_conn_changed_evt(hdev, skb);
1935                 break;
1936
1937         case HCI_EV_SNIFF_SUBRATE:
1938                 hci_sniff_subrate_evt(hdev, skb);
1939                 break;
1940
1941         case HCI_EV_EXTENDED_INQUIRY_RESULT:
1942                 hci_extended_inquiry_result_evt(hdev, skb);
1943                 break;
1944
1945         case HCI_EV_IO_CAPA_REQUEST:
1946                 hci_io_capa_request_evt(hdev, skb);
1947                 break;
1948
1949         case HCI_EV_SIMPLE_PAIR_COMPLETE:
1950                 hci_simple_pair_complete_evt(hdev, skb);
1951                 break;
1952
1953         case HCI_EV_REMOTE_HOST_FEATURES:
1954                 hci_remote_host_features_evt(hdev, skb);
1955                 break;
1956
1957         default:
1958                 BT_DBG("%s event 0x%x", hdev->name, event);
1959                 break;
1960         }
1961
1962         kfree_skb(skb);
1963         hdev->stat.evt_rx++;
1964 }
1965
1966 /* Generate internal stack event */
1967 void hci_si_event(struct hci_dev *hdev, int type, int dlen, void *data)
1968 {
1969         struct hci_event_hdr *hdr;
1970         struct hci_ev_stack_internal *ev;
1971         struct sk_buff *skb;
1972
1973         skb = bt_skb_alloc(HCI_EVENT_HDR_SIZE + sizeof(*ev) + dlen, GFP_ATOMIC);
1974         if (!skb)
1975                 return;
1976
1977         hdr = (void *) skb_put(skb, HCI_EVENT_HDR_SIZE);
1978         hdr->evt  = HCI_EV_STACK_INTERNAL;
1979         hdr->plen = sizeof(*ev) + dlen;
1980
1981         ev  = (void *) skb_put(skb, sizeof(*ev) + dlen);
1982         ev->type = type;
1983         memcpy(ev->data, data, dlen);
1984
1985         bt_cb(skb)->incoming = 1;
1986         __net_timestamp(skb);
1987
1988         bt_cb(skb)->pkt_type = HCI_EVENT_PKT;
1989         skb->dev = (void *) hdev;
1990         hci_send_to_sock(hdev, skb);
1991         kfree_skb(skb);
1992 }