linux/net/bluetooth/hci_event.c
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   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
  50static 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
  66static 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
  80static void hci_cc_remote_name_req_cancel(struct hci_dev *hdev, struct sk_buff *skb)
  81{
  82        BT_DBG("%s", hdev->name);
  83}
  84
  85static 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
 108static 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
 127static 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
 151static 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
 163static 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
 180static 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
 189static 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
 206static 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
 218static 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
 241static 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
 264static 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
 291static 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
 306static 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
 323static 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
 349static 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
 380static 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
 389static 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
 401static 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
 418static 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
 436static 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
 448static 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
 503static 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
 530static 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
 542static 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
 554static 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
 594static 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
 626static 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
 653static 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
 680static 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
 685static 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
 712static 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
 739static 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
 771static 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
 794static 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
 817static 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
 830static 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
 859static 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
 939unlock:
 940        hci_dev_unlock(hdev);
 941
 942        hci_conn_check_pending(hdev);
 943}
 944
 945static 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
1016static 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
1039static 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
1093static 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
1100static 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
1135static 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
1157static 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
1191static inline void hci_remote_version_evt(struct hci_dev *hdev, struct sk_buff *skb)
1192{
1193        BT_DBG("%s", hdev->name);
1194}
1195
1196static inline void hci_qos_setup_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
1197{
1198        BT_DBG("%s", hdev->name);
1199}
1200
1201static 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                        hci_sched_cmd(hdev);
1324        }
1325}
1326
1327static 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                        hci_sched_cmd(hdev);
1390        }
1391}
1392
1393static 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
1419static 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        hci_sched_tx(hdev);
1458
1459        tasklet_enable(&hdev->tx_task);
1460}
1461
1462static 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
1487static 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
1506static inline void hci_link_key_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
1507{
1508        BT_DBG("%s", hdev->name);
1509}
1510
1511static 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
1530static 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
1552static 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
1568static 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
1585static 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
1632static 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
1671static 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
1720unlock:
1721        hci_dev_unlock(hdev);
1722}
1723
1724static inline void hci_sync_conn_changed_evt(struct hci_dev *hdev, struct sk_buff *skb)
1725{
1726        BT_DBG("%s", hdev->name);
1727}
1728
1729static 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
1745static 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
1774static 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
1790static 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
1806static 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
1821void 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 */
1967void 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}
1993