2 BlueZ - Bluetooth protocol stack for Linux
3 Copyright (c) 2000-2001, 2010, Code Aurora Forum. All rights reserved.
5 Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
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;
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.
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.
25 /* Bluetooth HCI event handling. */
27 #include <asm/unaligned.h>
29 #include <net/bluetooth/bluetooth.h>
30 #include <net/bluetooth/hci_core.h>
31 #include <net/bluetooth/mgmt.h>
33 #include "hci_request.h"
34 #include "hci_debugfs.h"
39 #define ZERO_KEY "\x00\x00\x00\x00\x00\x00\x00\x00" \
40 "\x00\x00\x00\x00\x00\x00\x00\x00"
42 /* Handle HCI Event packets */
44 static void hci_cc_inquiry_cancel(struct hci_dev *hdev, struct sk_buff *skb)
46 __u8 status = *((__u8 *) skb->data);
48 BT_DBG("%s status 0x%2.2x", hdev->name, status);
53 clear_bit(HCI_INQUIRY, &hdev->flags);
54 smp_mb__after_atomic(); /* wake_up_bit advises about this barrier */
55 wake_up_bit(&hdev->flags, HCI_INQUIRY);
58 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
61 hci_conn_check_pending(hdev);
64 static void hci_cc_periodic_inq(struct hci_dev *hdev, struct sk_buff *skb)
66 __u8 status = *((__u8 *) skb->data);
68 BT_DBG("%s status 0x%2.2x", hdev->name, status);
73 hci_dev_set_flag(hdev, HCI_PERIODIC_INQ);
76 static void hci_cc_exit_periodic_inq(struct hci_dev *hdev, struct sk_buff *skb)
78 __u8 status = *((__u8 *) skb->data);
80 BT_DBG("%s status 0x%2.2x", hdev->name, status);
85 hci_dev_clear_flag(hdev, HCI_PERIODIC_INQ);
87 hci_conn_check_pending(hdev);
90 static void hci_cc_remote_name_req_cancel(struct hci_dev *hdev,
93 BT_DBG("%s", hdev->name);
96 static void hci_cc_role_discovery(struct hci_dev *hdev, struct sk_buff *skb)
98 struct hci_rp_role_discovery *rp = (void *) skb->data;
99 struct hci_conn *conn;
101 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
108 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
110 conn->role = rp->role;
112 hci_dev_unlock(hdev);
115 static void hci_cc_read_link_policy(struct hci_dev *hdev, struct sk_buff *skb)
117 struct hci_rp_read_link_policy *rp = (void *) skb->data;
118 struct hci_conn *conn;
120 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
127 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
129 conn->link_policy = __le16_to_cpu(rp->policy);
131 hci_dev_unlock(hdev);
134 static void hci_cc_write_link_policy(struct hci_dev *hdev, struct sk_buff *skb)
136 struct hci_rp_write_link_policy *rp = (void *) skb->data;
137 struct hci_conn *conn;
140 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
145 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LINK_POLICY);
151 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
153 conn->link_policy = get_unaligned_le16(sent + 2);
155 hci_dev_unlock(hdev);
158 static void hci_cc_read_def_link_policy(struct hci_dev *hdev,
161 struct hci_rp_read_def_link_policy *rp = (void *) skb->data;
163 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
168 hdev->link_policy = __le16_to_cpu(rp->policy);
171 static void hci_cc_write_def_link_policy(struct hci_dev *hdev,
174 __u8 status = *((__u8 *) skb->data);
177 BT_DBG("%s status 0x%2.2x", hdev->name, status);
182 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_DEF_LINK_POLICY);
186 hdev->link_policy = get_unaligned_le16(sent);
189 static void hci_cc_reset(struct hci_dev *hdev, struct sk_buff *skb)
191 __u8 status = *((__u8 *) skb->data);
193 BT_DBG("%s status 0x%2.2x", hdev->name, status);
195 clear_bit(HCI_RESET, &hdev->flags);
200 /* Reset all non-persistent flags */
201 hci_dev_clear_volatile_flags(hdev);
203 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
205 hdev->inq_tx_power = HCI_TX_POWER_INVALID;
206 hdev->adv_tx_power = HCI_TX_POWER_INVALID;
208 memset(hdev->adv_data, 0, sizeof(hdev->adv_data));
209 hdev->adv_data_len = 0;
211 memset(hdev->scan_rsp_data, 0, sizeof(hdev->scan_rsp_data));
212 hdev->scan_rsp_data_len = 0;
214 hdev->le_scan_type = LE_SCAN_PASSIVE;
216 hdev->ssp_debug_mode = 0;
218 hci_bdaddr_list_clear(&hdev->le_white_list);
221 static void hci_cc_read_stored_link_key(struct hci_dev *hdev,
224 struct hci_rp_read_stored_link_key *rp = (void *)skb->data;
225 struct hci_cp_read_stored_link_key *sent;
227 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
229 sent = hci_sent_cmd_data(hdev, HCI_OP_READ_STORED_LINK_KEY);
233 if (!rp->status && sent->read_all == 0x01) {
234 hdev->stored_max_keys = rp->max_keys;
235 hdev->stored_num_keys = rp->num_keys;
239 static void hci_cc_delete_stored_link_key(struct hci_dev *hdev,
242 struct hci_rp_delete_stored_link_key *rp = (void *)skb->data;
244 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
249 if (rp->num_keys <= hdev->stored_num_keys)
250 hdev->stored_num_keys -= rp->num_keys;
252 hdev->stored_num_keys = 0;
255 static void hci_cc_write_local_name(struct hci_dev *hdev, struct sk_buff *skb)
257 __u8 status = *((__u8 *) skb->data);
260 BT_DBG("%s status 0x%2.2x", hdev->name, status);
262 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LOCAL_NAME);
268 if (hci_dev_test_flag(hdev, HCI_MGMT))
269 mgmt_set_local_name_complete(hdev, sent, status);
271 memcpy(hdev->dev_name, sent, HCI_MAX_NAME_LENGTH);
273 hci_dev_unlock(hdev);
276 static void hci_cc_read_local_name(struct hci_dev *hdev, struct sk_buff *skb)
278 struct hci_rp_read_local_name *rp = (void *) skb->data;
280 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
285 if (hci_dev_test_flag(hdev, HCI_SETUP) ||
286 hci_dev_test_flag(hdev, HCI_CONFIG))
287 memcpy(hdev->dev_name, rp->name, HCI_MAX_NAME_LENGTH);
290 static void hci_cc_write_auth_enable(struct hci_dev *hdev, struct sk_buff *skb)
292 __u8 status = *((__u8 *) skb->data);
295 BT_DBG("%s status 0x%2.2x", hdev->name, status);
297 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_AUTH_ENABLE);
304 __u8 param = *((__u8 *) sent);
306 if (param == AUTH_ENABLED)
307 set_bit(HCI_AUTH, &hdev->flags);
309 clear_bit(HCI_AUTH, &hdev->flags);
312 if (hci_dev_test_flag(hdev, HCI_MGMT))
313 mgmt_auth_enable_complete(hdev, status);
315 hci_dev_unlock(hdev);
318 static void hci_cc_write_encrypt_mode(struct hci_dev *hdev, struct sk_buff *skb)
320 __u8 status = *((__u8 *) skb->data);
324 BT_DBG("%s status 0x%2.2x", hdev->name, status);
329 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_ENCRYPT_MODE);
333 param = *((__u8 *) sent);
336 set_bit(HCI_ENCRYPT, &hdev->flags);
338 clear_bit(HCI_ENCRYPT, &hdev->flags);
341 static void hci_cc_write_scan_enable(struct hci_dev *hdev, struct sk_buff *skb)
343 __u8 status = *((__u8 *) skb->data);
347 BT_DBG("%s status 0x%2.2x", hdev->name, status);
349 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SCAN_ENABLE);
353 param = *((__u8 *) sent);
358 hdev->discov_timeout = 0;
362 if (param & SCAN_INQUIRY)
363 set_bit(HCI_ISCAN, &hdev->flags);
365 clear_bit(HCI_ISCAN, &hdev->flags);
367 if (param & SCAN_PAGE)
368 set_bit(HCI_PSCAN, &hdev->flags);
370 clear_bit(HCI_PSCAN, &hdev->flags);
373 hci_dev_unlock(hdev);
376 static void hci_cc_read_class_of_dev(struct hci_dev *hdev, struct sk_buff *skb)
378 struct hci_rp_read_class_of_dev *rp = (void *) skb->data;
380 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
385 memcpy(hdev->dev_class, rp->dev_class, 3);
387 BT_DBG("%s class 0x%.2x%.2x%.2x", hdev->name,
388 hdev->dev_class[2], hdev->dev_class[1], hdev->dev_class[0]);
391 static void hci_cc_write_class_of_dev(struct hci_dev *hdev, struct sk_buff *skb)
393 __u8 status = *((__u8 *) skb->data);
396 BT_DBG("%s status 0x%2.2x", hdev->name, status);
398 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_CLASS_OF_DEV);
405 memcpy(hdev->dev_class, sent, 3);
407 if (hci_dev_test_flag(hdev, HCI_MGMT))
408 mgmt_set_class_of_dev_complete(hdev, sent, status);
410 hci_dev_unlock(hdev);
413 static void hci_cc_read_voice_setting(struct hci_dev *hdev, struct sk_buff *skb)
415 struct hci_rp_read_voice_setting *rp = (void *) skb->data;
418 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
423 setting = __le16_to_cpu(rp->voice_setting);
425 if (hdev->voice_setting == setting)
428 hdev->voice_setting = setting;
430 BT_DBG("%s voice setting 0x%4.4x", hdev->name, setting);
433 hdev->notify(hdev, HCI_NOTIFY_VOICE_SETTING);
436 static void hci_cc_write_voice_setting(struct hci_dev *hdev,
439 __u8 status = *((__u8 *) skb->data);
443 BT_DBG("%s status 0x%2.2x", hdev->name, status);
448 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_VOICE_SETTING);
452 setting = get_unaligned_le16(sent);
454 if (hdev->voice_setting == setting)
457 hdev->voice_setting = setting;
459 BT_DBG("%s voice setting 0x%4.4x", hdev->name, setting);
462 hdev->notify(hdev, HCI_NOTIFY_VOICE_SETTING);
465 static void hci_cc_read_num_supported_iac(struct hci_dev *hdev,
468 struct hci_rp_read_num_supported_iac *rp = (void *) skb->data;
470 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
475 hdev->num_iac = rp->num_iac;
477 BT_DBG("%s num iac %d", hdev->name, hdev->num_iac);
480 static void hci_cc_write_ssp_mode(struct hci_dev *hdev, struct sk_buff *skb)
482 __u8 status = *((__u8 *) skb->data);
483 struct hci_cp_write_ssp_mode *sent;
485 BT_DBG("%s status 0x%2.2x", hdev->name, status);
487 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SSP_MODE);
495 hdev->features[1][0] |= LMP_HOST_SSP;
497 hdev->features[1][0] &= ~LMP_HOST_SSP;
500 if (hci_dev_test_flag(hdev, HCI_MGMT))
501 mgmt_ssp_enable_complete(hdev, sent->mode, status);
504 hci_dev_set_flag(hdev, HCI_SSP_ENABLED);
506 hci_dev_clear_flag(hdev, HCI_SSP_ENABLED);
509 hci_dev_unlock(hdev);
512 static void hci_cc_write_sc_support(struct hci_dev *hdev, struct sk_buff *skb)
514 u8 status = *((u8 *) skb->data);
515 struct hci_cp_write_sc_support *sent;
517 BT_DBG("%s status 0x%2.2x", hdev->name, status);
519 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SC_SUPPORT);
527 hdev->features[1][0] |= LMP_HOST_SC;
529 hdev->features[1][0] &= ~LMP_HOST_SC;
532 if (!hci_dev_test_flag(hdev, HCI_MGMT) && !status) {
534 hci_dev_set_flag(hdev, HCI_SC_ENABLED);
536 hci_dev_clear_flag(hdev, HCI_SC_ENABLED);
539 hci_dev_unlock(hdev);
542 static void hci_cc_read_local_version(struct hci_dev *hdev, struct sk_buff *skb)
544 struct hci_rp_read_local_version *rp = (void *) skb->data;
546 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
551 if (hci_dev_test_flag(hdev, HCI_SETUP) ||
552 hci_dev_test_flag(hdev, HCI_CONFIG)) {
553 hdev->hci_ver = rp->hci_ver;
554 hdev->hci_rev = __le16_to_cpu(rp->hci_rev);
555 hdev->lmp_ver = rp->lmp_ver;
556 hdev->manufacturer = __le16_to_cpu(rp->manufacturer);
557 hdev->lmp_subver = __le16_to_cpu(rp->lmp_subver);
561 static void hci_cc_read_local_commands(struct hci_dev *hdev,
564 struct hci_rp_read_local_commands *rp = (void *) skb->data;
566 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
571 if (hci_dev_test_flag(hdev, HCI_SETUP) ||
572 hci_dev_test_flag(hdev, HCI_CONFIG))
573 memcpy(hdev->commands, rp->commands, sizeof(hdev->commands));
576 static void hci_cc_read_local_features(struct hci_dev *hdev,
579 struct hci_rp_read_local_features *rp = (void *) skb->data;
581 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
586 memcpy(hdev->features, rp->features, 8);
588 /* Adjust default settings according to features
589 * supported by device. */
591 if (hdev->features[0][0] & LMP_3SLOT)
592 hdev->pkt_type |= (HCI_DM3 | HCI_DH3);
594 if (hdev->features[0][0] & LMP_5SLOT)
595 hdev->pkt_type |= (HCI_DM5 | HCI_DH5);
597 if (hdev->features[0][1] & LMP_HV2) {
598 hdev->pkt_type |= (HCI_HV2);
599 hdev->esco_type |= (ESCO_HV2);
602 if (hdev->features[0][1] & LMP_HV3) {
603 hdev->pkt_type |= (HCI_HV3);
604 hdev->esco_type |= (ESCO_HV3);
607 if (lmp_esco_capable(hdev))
608 hdev->esco_type |= (ESCO_EV3);
610 if (hdev->features[0][4] & LMP_EV4)
611 hdev->esco_type |= (ESCO_EV4);
613 if (hdev->features[0][4] & LMP_EV5)
614 hdev->esco_type |= (ESCO_EV5);
616 if (hdev->features[0][5] & LMP_EDR_ESCO_2M)
617 hdev->esco_type |= (ESCO_2EV3);
619 if (hdev->features[0][5] & LMP_EDR_ESCO_3M)
620 hdev->esco_type |= (ESCO_3EV3);
622 if (hdev->features[0][5] & LMP_EDR_3S_ESCO)
623 hdev->esco_type |= (ESCO_2EV5 | ESCO_3EV5);
626 static void hci_cc_read_local_ext_features(struct hci_dev *hdev,
629 struct hci_rp_read_local_ext_features *rp = (void *) skb->data;
631 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
636 if (hdev->max_page < rp->max_page)
637 hdev->max_page = rp->max_page;
639 if (rp->page < HCI_MAX_PAGES)
640 memcpy(hdev->features[rp->page], rp->features, 8);
643 static void hci_cc_read_flow_control_mode(struct hci_dev *hdev,
646 struct hci_rp_read_flow_control_mode *rp = (void *) skb->data;
648 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
653 hdev->flow_ctl_mode = rp->mode;
656 static void hci_cc_read_buffer_size(struct hci_dev *hdev, struct sk_buff *skb)
658 struct hci_rp_read_buffer_size *rp = (void *) skb->data;
660 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
665 hdev->acl_mtu = __le16_to_cpu(rp->acl_mtu);
666 hdev->sco_mtu = rp->sco_mtu;
667 hdev->acl_pkts = __le16_to_cpu(rp->acl_max_pkt);
668 hdev->sco_pkts = __le16_to_cpu(rp->sco_max_pkt);
670 if (test_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks)) {
675 hdev->acl_cnt = hdev->acl_pkts;
676 hdev->sco_cnt = hdev->sco_pkts;
678 BT_DBG("%s acl mtu %d:%d sco mtu %d:%d", hdev->name, hdev->acl_mtu,
679 hdev->acl_pkts, hdev->sco_mtu, hdev->sco_pkts);
682 static void hci_cc_read_bd_addr(struct hci_dev *hdev, struct sk_buff *skb)
684 struct hci_rp_read_bd_addr *rp = (void *) skb->data;
686 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
691 if (test_bit(HCI_INIT, &hdev->flags))
692 bacpy(&hdev->bdaddr, &rp->bdaddr);
694 if (hci_dev_test_flag(hdev, HCI_SETUP))
695 bacpy(&hdev->setup_addr, &rp->bdaddr);
698 static void hci_cc_read_page_scan_activity(struct hci_dev *hdev,
701 struct hci_rp_read_page_scan_activity *rp = (void *) skb->data;
703 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
708 if (test_bit(HCI_INIT, &hdev->flags)) {
709 hdev->page_scan_interval = __le16_to_cpu(rp->interval);
710 hdev->page_scan_window = __le16_to_cpu(rp->window);
714 static void hci_cc_write_page_scan_activity(struct hci_dev *hdev,
717 u8 status = *((u8 *) skb->data);
718 struct hci_cp_write_page_scan_activity *sent;
720 BT_DBG("%s status 0x%2.2x", hdev->name, status);
725 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_PAGE_SCAN_ACTIVITY);
729 hdev->page_scan_interval = __le16_to_cpu(sent->interval);
730 hdev->page_scan_window = __le16_to_cpu(sent->window);
733 static void hci_cc_read_page_scan_type(struct hci_dev *hdev,
736 struct hci_rp_read_page_scan_type *rp = (void *) skb->data;
738 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
743 if (test_bit(HCI_INIT, &hdev->flags))
744 hdev->page_scan_type = rp->type;
747 static void hci_cc_write_page_scan_type(struct hci_dev *hdev,
750 u8 status = *((u8 *) skb->data);
753 BT_DBG("%s status 0x%2.2x", hdev->name, status);
758 type = hci_sent_cmd_data(hdev, HCI_OP_WRITE_PAGE_SCAN_TYPE);
760 hdev->page_scan_type = *type;
763 static void hci_cc_read_data_block_size(struct hci_dev *hdev,
766 struct hci_rp_read_data_block_size *rp = (void *) skb->data;
768 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
773 hdev->block_mtu = __le16_to_cpu(rp->max_acl_len);
774 hdev->block_len = __le16_to_cpu(rp->block_len);
775 hdev->num_blocks = __le16_to_cpu(rp->num_blocks);
777 hdev->block_cnt = hdev->num_blocks;
779 BT_DBG("%s blk mtu %d cnt %d len %d", hdev->name, hdev->block_mtu,
780 hdev->block_cnt, hdev->block_len);
783 static void hci_cc_read_clock(struct hci_dev *hdev, struct sk_buff *skb)
785 struct hci_rp_read_clock *rp = (void *) skb->data;
786 struct hci_cp_read_clock *cp;
787 struct hci_conn *conn;
789 BT_DBG("%s", hdev->name);
791 if (skb->len < sizeof(*rp))
799 cp = hci_sent_cmd_data(hdev, HCI_OP_READ_CLOCK);
803 if (cp->which == 0x00) {
804 hdev->clock = le32_to_cpu(rp->clock);
808 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
810 conn->clock = le32_to_cpu(rp->clock);
811 conn->clock_accuracy = le16_to_cpu(rp->accuracy);
815 hci_dev_unlock(hdev);
818 static void hci_cc_read_local_amp_info(struct hci_dev *hdev,
821 struct hci_rp_read_local_amp_info *rp = (void *) skb->data;
823 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
828 hdev->amp_status = rp->amp_status;
829 hdev->amp_total_bw = __le32_to_cpu(rp->total_bw);
830 hdev->amp_max_bw = __le32_to_cpu(rp->max_bw);
831 hdev->amp_min_latency = __le32_to_cpu(rp->min_latency);
832 hdev->amp_max_pdu = __le32_to_cpu(rp->max_pdu);
833 hdev->amp_type = rp->amp_type;
834 hdev->amp_pal_cap = __le16_to_cpu(rp->pal_cap);
835 hdev->amp_assoc_size = __le16_to_cpu(rp->max_assoc_size);
836 hdev->amp_be_flush_to = __le32_to_cpu(rp->be_flush_to);
837 hdev->amp_max_flush_to = __le32_to_cpu(rp->max_flush_to);
840 a2mp_send_getinfo_rsp(hdev);
843 static void hci_cc_read_local_amp_assoc(struct hci_dev *hdev,
846 struct hci_rp_read_local_amp_assoc *rp = (void *) skb->data;
847 struct amp_assoc *assoc = &hdev->loc_assoc;
848 size_t rem_len, frag_len;
850 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
855 frag_len = skb->len - sizeof(*rp);
856 rem_len = __le16_to_cpu(rp->rem_len);
858 if (rem_len > frag_len) {
859 BT_DBG("frag_len %zu rem_len %zu", frag_len, rem_len);
861 memcpy(assoc->data + assoc->offset, rp->frag, frag_len);
862 assoc->offset += frag_len;
864 /* Read other fragments */
865 amp_read_loc_assoc_frag(hdev, rp->phy_handle);
870 memcpy(assoc->data + assoc->offset, rp->frag, rem_len);
871 assoc->len = assoc->offset + rem_len;
875 /* Send A2MP Rsp when all fragments are received */
876 a2mp_send_getampassoc_rsp(hdev, rp->status);
877 a2mp_send_create_phy_link_req(hdev, rp->status);
880 static void hci_cc_read_inq_rsp_tx_power(struct hci_dev *hdev,
883 struct hci_rp_read_inq_rsp_tx_power *rp = (void *) skb->data;
885 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
890 hdev->inq_tx_power = rp->tx_power;
893 static void hci_cc_pin_code_reply(struct hci_dev *hdev, struct sk_buff *skb)
895 struct hci_rp_pin_code_reply *rp = (void *) skb->data;
896 struct hci_cp_pin_code_reply *cp;
897 struct hci_conn *conn;
899 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
903 if (hci_dev_test_flag(hdev, HCI_MGMT))
904 mgmt_pin_code_reply_complete(hdev, &rp->bdaddr, rp->status);
909 cp = hci_sent_cmd_data(hdev, HCI_OP_PIN_CODE_REPLY);
913 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
915 conn->pin_length = cp->pin_len;
918 hci_dev_unlock(hdev);
921 static void hci_cc_pin_code_neg_reply(struct hci_dev *hdev, struct sk_buff *skb)
923 struct hci_rp_pin_code_neg_reply *rp = (void *) skb->data;
925 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
929 if (hci_dev_test_flag(hdev, HCI_MGMT))
930 mgmt_pin_code_neg_reply_complete(hdev, &rp->bdaddr,
933 hci_dev_unlock(hdev);
936 static void hci_cc_le_read_buffer_size(struct hci_dev *hdev,
939 struct hci_rp_le_read_buffer_size *rp = (void *) skb->data;
941 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
946 hdev->le_mtu = __le16_to_cpu(rp->le_mtu);
947 hdev->le_pkts = rp->le_max_pkt;
949 hdev->le_cnt = hdev->le_pkts;
951 BT_DBG("%s le mtu %d:%d", hdev->name, hdev->le_mtu, hdev->le_pkts);
954 static void hci_cc_le_read_local_features(struct hci_dev *hdev,
957 struct hci_rp_le_read_local_features *rp = (void *) skb->data;
959 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
964 memcpy(hdev->le_features, rp->features, 8);
967 static void hci_cc_le_read_adv_tx_power(struct hci_dev *hdev,
970 struct hci_rp_le_read_adv_tx_power *rp = (void *) skb->data;
972 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
977 hdev->adv_tx_power = rp->tx_power;
980 static void hci_cc_user_confirm_reply(struct hci_dev *hdev, struct sk_buff *skb)
982 struct hci_rp_user_confirm_reply *rp = (void *) skb->data;
984 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
988 if (hci_dev_test_flag(hdev, HCI_MGMT))
989 mgmt_user_confirm_reply_complete(hdev, &rp->bdaddr, ACL_LINK, 0,
992 hci_dev_unlock(hdev);
995 static void hci_cc_user_confirm_neg_reply(struct hci_dev *hdev,
998 struct hci_rp_user_confirm_reply *rp = (void *) skb->data;
1000 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
1004 if (hci_dev_test_flag(hdev, HCI_MGMT))
1005 mgmt_user_confirm_neg_reply_complete(hdev, &rp->bdaddr,
1006 ACL_LINK, 0, rp->status);
1008 hci_dev_unlock(hdev);
1011 static void hci_cc_user_passkey_reply(struct hci_dev *hdev, struct sk_buff *skb)
1013 struct hci_rp_user_confirm_reply *rp = (void *) skb->data;
1015 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
1019 if (hci_dev_test_flag(hdev, HCI_MGMT))
1020 mgmt_user_passkey_reply_complete(hdev, &rp->bdaddr, ACL_LINK,
1023 hci_dev_unlock(hdev);
1026 static void hci_cc_user_passkey_neg_reply(struct hci_dev *hdev,
1027 struct sk_buff *skb)
1029 struct hci_rp_user_confirm_reply *rp = (void *) skb->data;
1031 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
1035 if (hci_dev_test_flag(hdev, HCI_MGMT))
1036 mgmt_user_passkey_neg_reply_complete(hdev, &rp->bdaddr,
1037 ACL_LINK, 0, rp->status);
1039 hci_dev_unlock(hdev);
1042 static void hci_cc_read_local_oob_data(struct hci_dev *hdev,
1043 struct sk_buff *skb)
1045 struct hci_rp_read_local_oob_data *rp = (void *) skb->data;
1047 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
1050 mgmt_read_local_oob_data_complete(hdev, rp->hash, rp->rand, NULL, NULL,
1052 hci_dev_unlock(hdev);
1055 static void hci_cc_read_local_oob_ext_data(struct hci_dev *hdev,
1056 struct sk_buff *skb)
1058 struct hci_rp_read_local_oob_ext_data *rp = (void *) skb->data;
1060 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
1063 mgmt_read_local_oob_data_complete(hdev, rp->hash192, rp->rand192,
1064 rp->hash256, rp->rand256,
1066 hci_dev_unlock(hdev);
1070 static void hci_cc_le_set_random_addr(struct hci_dev *hdev, struct sk_buff *skb)
1072 __u8 status = *((__u8 *) skb->data);
1075 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1080 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_RANDOM_ADDR);
1086 bacpy(&hdev->random_addr, sent);
1088 hci_dev_unlock(hdev);
1091 static void hci_cc_le_set_adv_enable(struct hci_dev *hdev, struct sk_buff *skb)
1093 __u8 *sent, status = *((__u8 *) skb->data);
1095 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1100 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADV_ENABLE);
1106 /* If we're doing connection initiation as peripheral. Set a
1107 * timeout in case something goes wrong.
1110 struct hci_conn *conn;
1112 hci_dev_set_flag(hdev, HCI_LE_ADV);
1114 conn = hci_conn_hash_lookup_state(hdev, LE_LINK, BT_CONNECT);
1116 queue_delayed_work(hdev->workqueue,
1117 &conn->le_conn_timeout,
1118 conn->conn_timeout);
1120 hci_dev_clear_flag(hdev, HCI_LE_ADV);
1123 hci_dev_unlock(hdev);
1126 static void hci_cc_le_set_scan_param(struct hci_dev *hdev, struct sk_buff *skb)
1128 struct hci_cp_le_set_scan_param *cp;
1129 __u8 status = *((__u8 *) skb->data);
1131 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1136 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_SCAN_PARAM);
1142 hdev->le_scan_type = cp->type;
1144 hci_dev_unlock(hdev);
1147 static bool has_pending_adv_report(struct hci_dev *hdev)
1149 struct discovery_state *d = &hdev->discovery;
1151 return bacmp(&d->last_adv_addr, BDADDR_ANY);
1154 static void clear_pending_adv_report(struct hci_dev *hdev)
1156 struct discovery_state *d = &hdev->discovery;
1158 bacpy(&d->last_adv_addr, BDADDR_ANY);
1159 d->last_adv_data_len = 0;
1162 static void store_pending_adv_report(struct hci_dev *hdev, bdaddr_t *bdaddr,
1163 u8 bdaddr_type, s8 rssi, u32 flags,
1166 struct discovery_state *d = &hdev->discovery;
1168 bacpy(&d->last_adv_addr, bdaddr);
1169 d->last_adv_addr_type = bdaddr_type;
1170 d->last_adv_rssi = rssi;
1171 d->last_adv_flags = flags;
1172 memcpy(d->last_adv_data, data, len);
1173 d->last_adv_data_len = len;
1176 static void hci_cc_le_set_scan_enable(struct hci_dev *hdev,
1177 struct sk_buff *skb)
1179 struct hci_cp_le_set_scan_enable *cp;
1180 __u8 status = *((__u8 *) skb->data);
1182 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1187 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_SCAN_ENABLE);
1193 switch (cp->enable) {
1194 case LE_SCAN_ENABLE:
1195 hci_dev_set_flag(hdev, HCI_LE_SCAN);
1196 if (hdev->le_scan_type == LE_SCAN_ACTIVE)
1197 clear_pending_adv_report(hdev);
1200 case LE_SCAN_DISABLE:
1201 /* We do this here instead of when setting DISCOVERY_STOPPED
1202 * since the latter would potentially require waiting for
1203 * inquiry to stop too.
1205 if (has_pending_adv_report(hdev)) {
1206 struct discovery_state *d = &hdev->discovery;
1208 mgmt_device_found(hdev, &d->last_adv_addr, LE_LINK,
1209 d->last_adv_addr_type, NULL,
1210 d->last_adv_rssi, d->last_adv_flags,
1212 d->last_adv_data_len, NULL, 0);
1215 /* Cancel this timer so that we don't try to disable scanning
1216 * when it's already disabled.
1218 cancel_delayed_work(&hdev->le_scan_disable);
1220 hci_dev_clear_flag(hdev, HCI_LE_SCAN);
1222 /* The HCI_LE_SCAN_INTERRUPTED flag indicates that we
1223 * interrupted scanning due to a connect request. Mark
1224 * therefore discovery as stopped. If this was not
1225 * because of a connect request advertising might have
1226 * been disabled because of active scanning, so
1227 * re-enable it again if necessary.
1229 if (hci_dev_test_and_clear_flag(hdev, HCI_LE_SCAN_INTERRUPTED))
1230 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
1231 else if (!hci_dev_test_flag(hdev, HCI_LE_ADV) &&
1232 hdev->discovery.state == DISCOVERY_FINDING)
1233 mgmt_reenable_advertising(hdev);
1238 BT_ERR("Used reserved LE_Scan_Enable param %d", cp->enable);
1242 hci_dev_unlock(hdev);
1245 static void hci_cc_le_read_white_list_size(struct hci_dev *hdev,
1246 struct sk_buff *skb)
1248 struct hci_rp_le_read_white_list_size *rp = (void *) skb->data;
1250 BT_DBG("%s status 0x%2.2x size %u", hdev->name, rp->status, rp->size);
1255 hdev->le_white_list_size = rp->size;
1258 static void hci_cc_le_clear_white_list(struct hci_dev *hdev,
1259 struct sk_buff *skb)
1261 __u8 status = *((__u8 *) skb->data);
1263 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1268 hci_bdaddr_list_clear(&hdev->le_white_list);
1271 static void hci_cc_le_add_to_white_list(struct hci_dev *hdev,
1272 struct sk_buff *skb)
1274 struct hci_cp_le_add_to_white_list *sent;
1275 __u8 status = *((__u8 *) skb->data);
1277 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1282 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_ADD_TO_WHITE_LIST);
1286 hci_bdaddr_list_add(&hdev->le_white_list, &sent->bdaddr,
1290 static void hci_cc_le_del_from_white_list(struct hci_dev *hdev,
1291 struct sk_buff *skb)
1293 struct hci_cp_le_del_from_white_list *sent;
1294 __u8 status = *((__u8 *) skb->data);
1296 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1301 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_DEL_FROM_WHITE_LIST);
1305 hci_bdaddr_list_del(&hdev->le_white_list, &sent->bdaddr,
1309 static void hci_cc_le_read_supported_states(struct hci_dev *hdev,
1310 struct sk_buff *skb)
1312 struct hci_rp_le_read_supported_states *rp = (void *) skb->data;
1314 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
1319 memcpy(hdev->le_states, rp->le_states, 8);
1322 static void hci_cc_le_read_def_data_len(struct hci_dev *hdev,
1323 struct sk_buff *skb)
1325 struct hci_rp_le_read_def_data_len *rp = (void *) skb->data;
1327 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
1332 hdev->le_def_tx_len = le16_to_cpu(rp->tx_len);
1333 hdev->le_def_tx_time = le16_to_cpu(rp->tx_time);
1336 static void hci_cc_le_write_def_data_len(struct hci_dev *hdev,
1337 struct sk_buff *skb)
1339 struct hci_cp_le_write_def_data_len *sent;
1340 __u8 status = *((__u8 *) skb->data);
1342 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1347 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_WRITE_DEF_DATA_LEN);
1351 hdev->le_def_tx_len = le16_to_cpu(sent->tx_len);
1352 hdev->le_def_tx_time = le16_to_cpu(sent->tx_time);
1355 static void hci_cc_le_read_max_data_len(struct hci_dev *hdev,
1356 struct sk_buff *skb)
1358 struct hci_rp_le_read_max_data_len *rp = (void *) skb->data;
1360 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
1365 hdev->le_max_tx_len = le16_to_cpu(rp->tx_len);
1366 hdev->le_max_tx_time = le16_to_cpu(rp->tx_time);
1367 hdev->le_max_rx_len = le16_to_cpu(rp->rx_len);
1368 hdev->le_max_rx_time = le16_to_cpu(rp->rx_time);
1371 static void hci_cc_write_le_host_supported(struct hci_dev *hdev,
1372 struct sk_buff *skb)
1374 struct hci_cp_write_le_host_supported *sent;
1375 __u8 status = *((__u8 *) skb->data);
1377 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1382 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LE_HOST_SUPPORTED);
1389 hdev->features[1][0] |= LMP_HOST_LE;
1390 hci_dev_set_flag(hdev, HCI_LE_ENABLED);
1392 hdev->features[1][0] &= ~LMP_HOST_LE;
1393 hci_dev_clear_flag(hdev, HCI_LE_ENABLED);
1394 hci_dev_clear_flag(hdev, HCI_ADVERTISING);
1398 hdev->features[1][0] |= LMP_HOST_LE_BREDR;
1400 hdev->features[1][0] &= ~LMP_HOST_LE_BREDR;
1402 hci_dev_unlock(hdev);
1405 static void hci_cc_set_adv_param(struct hci_dev *hdev, struct sk_buff *skb)
1407 struct hci_cp_le_set_adv_param *cp;
1408 u8 status = *((u8 *) skb->data);
1410 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1415 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADV_PARAM);
1420 hdev->adv_addr_type = cp->own_address_type;
1421 hci_dev_unlock(hdev);
1424 static void hci_cc_write_remote_amp_assoc(struct hci_dev *hdev,
1425 struct sk_buff *skb)
1427 struct hci_rp_write_remote_amp_assoc *rp = (void *) skb->data;
1429 BT_DBG("%s status 0x%2.2x phy_handle 0x%2.2x",
1430 hdev->name, rp->status, rp->phy_handle);
1435 amp_write_rem_assoc_continue(hdev, rp->phy_handle);
1438 static void hci_cc_read_rssi(struct hci_dev *hdev, struct sk_buff *skb)
1440 struct hci_rp_read_rssi *rp = (void *) skb->data;
1441 struct hci_conn *conn;
1443 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
1450 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
1452 conn->rssi = rp->rssi;
1454 hci_dev_unlock(hdev);
1457 static void hci_cc_read_tx_power(struct hci_dev *hdev, struct sk_buff *skb)
1459 struct hci_cp_read_tx_power *sent;
1460 struct hci_rp_read_tx_power *rp = (void *) skb->data;
1461 struct hci_conn *conn;
1463 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
1468 sent = hci_sent_cmd_data(hdev, HCI_OP_READ_TX_POWER);
1474 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
1478 switch (sent->type) {
1480 conn->tx_power = rp->tx_power;
1483 conn->max_tx_power = rp->tx_power;
1488 hci_dev_unlock(hdev);
1491 static void hci_cc_write_ssp_debug_mode(struct hci_dev *hdev, struct sk_buff *skb)
1493 u8 status = *((u8 *) skb->data);
1496 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1501 mode = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SSP_DEBUG_MODE);
1503 hdev->ssp_debug_mode = *mode;
1506 static void hci_cs_inquiry(struct hci_dev *hdev, __u8 status)
1508 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1511 hci_conn_check_pending(hdev);
1515 set_bit(HCI_INQUIRY, &hdev->flags);
1518 static void hci_cs_create_conn(struct hci_dev *hdev, __u8 status)
1520 struct hci_cp_create_conn *cp;
1521 struct hci_conn *conn;
1523 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1525 cp = hci_sent_cmd_data(hdev, HCI_OP_CREATE_CONN);
1531 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
1533 BT_DBG("%s bdaddr %pMR hcon %p", hdev->name, &cp->bdaddr, conn);
1536 if (conn && conn->state == BT_CONNECT) {
1537 if (status != 0x0c || conn->attempt > 2) {
1538 conn->state = BT_CLOSED;
1539 hci_connect_cfm(conn, status);
1542 conn->state = BT_CONNECT2;
1546 conn = hci_conn_add(hdev, ACL_LINK, &cp->bdaddr,
1549 BT_ERR("No memory for new connection");
1553 hci_dev_unlock(hdev);
1556 static void hci_cs_add_sco(struct hci_dev *hdev, __u8 status)
1558 struct hci_cp_add_sco *cp;
1559 struct hci_conn *acl, *sco;
1562 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1567 cp = hci_sent_cmd_data(hdev, HCI_OP_ADD_SCO);
1571 handle = __le16_to_cpu(cp->handle);
1573 BT_DBG("%s handle 0x%4.4x", hdev->name, handle);
1577 acl = hci_conn_hash_lookup_handle(hdev, handle);
1581 sco->state = BT_CLOSED;
1583 hci_connect_cfm(sco, status);
1588 hci_dev_unlock(hdev);
1591 static void hci_cs_auth_requested(struct hci_dev *hdev, __u8 status)
1593 struct hci_cp_auth_requested *cp;
1594 struct hci_conn *conn;
1596 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1601 cp = hci_sent_cmd_data(hdev, HCI_OP_AUTH_REQUESTED);
1607 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
1609 if (conn->state == BT_CONFIG) {
1610 hci_connect_cfm(conn, status);
1611 hci_conn_drop(conn);
1615 hci_dev_unlock(hdev);
1618 static void hci_cs_set_conn_encrypt(struct hci_dev *hdev, __u8 status)
1620 struct hci_cp_set_conn_encrypt *cp;
1621 struct hci_conn *conn;
1623 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1628 cp = hci_sent_cmd_data(hdev, HCI_OP_SET_CONN_ENCRYPT);
1634 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
1636 if (conn->state == BT_CONFIG) {
1637 hci_connect_cfm(conn, status);
1638 hci_conn_drop(conn);
1642 hci_dev_unlock(hdev);
1645 static int hci_outgoing_auth_needed(struct hci_dev *hdev,
1646 struct hci_conn *conn)
1648 if (conn->state != BT_CONFIG || !conn->out)
1651 if (conn->pending_sec_level == BT_SECURITY_SDP)
1654 /* Only request authentication for SSP connections or non-SSP
1655 * devices with sec_level MEDIUM or HIGH or if MITM protection
1658 if (!hci_conn_ssp_enabled(conn) && !(conn->auth_type & 0x01) &&
1659 conn->pending_sec_level != BT_SECURITY_FIPS &&
1660 conn->pending_sec_level != BT_SECURITY_HIGH &&
1661 conn->pending_sec_level != BT_SECURITY_MEDIUM)
1667 static int hci_resolve_name(struct hci_dev *hdev,
1668 struct inquiry_entry *e)
1670 struct hci_cp_remote_name_req cp;
1672 memset(&cp, 0, sizeof(cp));
1674 bacpy(&cp.bdaddr, &e->data.bdaddr);
1675 cp.pscan_rep_mode = e->data.pscan_rep_mode;
1676 cp.pscan_mode = e->data.pscan_mode;
1677 cp.clock_offset = e->data.clock_offset;
1679 return hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp);
1682 static bool hci_resolve_next_name(struct hci_dev *hdev)
1684 struct discovery_state *discov = &hdev->discovery;
1685 struct inquiry_entry *e;
1687 if (list_empty(&discov->resolve))
1690 e = hci_inquiry_cache_lookup_resolve(hdev, BDADDR_ANY, NAME_NEEDED);
1694 if (hci_resolve_name(hdev, e) == 0) {
1695 e->name_state = NAME_PENDING;
1702 static void hci_check_pending_name(struct hci_dev *hdev, struct hci_conn *conn,
1703 bdaddr_t *bdaddr, u8 *name, u8 name_len)
1705 struct discovery_state *discov = &hdev->discovery;
1706 struct inquiry_entry *e;
1708 /* Update the mgmt connected state if necessary. Be careful with
1709 * conn objects that exist but are not (yet) connected however.
1710 * Only those in BT_CONFIG or BT_CONNECTED states can be
1711 * considered connected.
1714 (conn->state == BT_CONFIG || conn->state == BT_CONNECTED) &&
1715 !test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
1716 mgmt_device_connected(hdev, conn, 0, name, name_len);
1718 if (discov->state == DISCOVERY_STOPPED)
1721 if (discov->state == DISCOVERY_STOPPING)
1722 goto discov_complete;
1724 if (discov->state != DISCOVERY_RESOLVING)
1727 e = hci_inquiry_cache_lookup_resolve(hdev, bdaddr, NAME_PENDING);
1728 /* If the device was not found in a list of found devices names of which
1729 * are pending. there is no need to continue resolving a next name as it
1730 * will be done upon receiving another Remote Name Request Complete
1737 e->name_state = NAME_KNOWN;
1738 mgmt_remote_name(hdev, bdaddr, ACL_LINK, 0x00,
1739 e->data.rssi, name, name_len);
1741 e->name_state = NAME_NOT_KNOWN;
1744 if (hci_resolve_next_name(hdev))
1748 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
1751 static void hci_cs_remote_name_req(struct hci_dev *hdev, __u8 status)
1753 struct hci_cp_remote_name_req *cp;
1754 struct hci_conn *conn;
1756 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1758 /* If successful wait for the name req complete event before
1759 * checking for the need to do authentication */
1763 cp = hci_sent_cmd_data(hdev, HCI_OP_REMOTE_NAME_REQ);
1769 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
1771 if (hci_dev_test_flag(hdev, HCI_MGMT))
1772 hci_check_pending_name(hdev, conn, &cp->bdaddr, NULL, 0);
1777 if (!hci_outgoing_auth_needed(hdev, conn))
1780 if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->flags)) {
1781 struct hci_cp_auth_requested auth_cp;
1783 set_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags);
1785 auth_cp.handle = __cpu_to_le16(conn->handle);
1786 hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED,
1787 sizeof(auth_cp), &auth_cp);
1791 hci_dev_unlock(hdev);
1794 static void hci_cs_read_remote_features(struct hci_dev *hdev, __u8 status)
1796 struct hci_cp_read_remote_features *cp;
1797 struct hci_conn *conn;
1799 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1804 cp = hci_sent_cmd_data(hdev, HCI_OP_READ_REMOTE_FEATURES);
1810 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
1812 if (conn->state == BT_CONFIG) {
1813 hci_connect_cfm(conn, status);
1814 hci_conn_drop(conn);
1818 hci_dev_unlock(hdev);
1821 static void hci_cs_read_remote_ext_features(struct hci_dev *hdev, __u8 status)
1823 struct hci_cp_read_remote_ext_features *cp;
1824 struct hci_conn *conn;
1826 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1831 cp = hci_sent_cmd_data(hdev, HCI_OP_READ_REMOTE_EXT_FEATURES);
1837 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
1839 if (conn->state == BT_CONFIG) {
1840 hci_connect_cfm(conn, status);
1841 hci_conn_drop(conn);
1845 hci_dev_unlock(hdev);
1848 static void hci_cs_setup_sync_conn(struct hci_dev *hdev, __u8 status)
1850 struct hci_cp_setup_sync_conn *cp;
1851 struct hci_conn *acl, *sco;
1854 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1859 cp = hci_sent_cmd_data(hdev, HCI_OP_SETUP_SYNC_CONN);
1863 handle = __le16_to_cpu(cp->handle);
1865 BT_DBG("%s handle 0x%4.4x", hdev->name, handle);
1869 acl = hci_conn_hash_lookup_handle(hdev, handle);
1873 sco->state = BT_CLOSED;
1875 hci_connect_cfm(sco, status);
1880 hci_dev_unlock(hdev);
1883 static void hci_cs_sniff_mode(struct hci_dev *hdev, __u8 status)
1885 struct hci_cp_sniff_mode *cp;
1886 struct hci_conn *conn;
1888 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1893 cp = hci_sent_cmd_data(hdev, HCI_OP_SNIFF_MODE);
1899 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
1901 clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->flags);
1903 if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags))
1904 hci_sco_setup(conn, status);
1907 hci_dev_unlock(hdev);
1910 static void hci_cs_exit_sniff_mode(struct hci_dev *hdev, __u8 status)
1912 struct hci_cp_exit_sniff_mode *cp;
1913 struct hci_conn *conn;
1915 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1920 cp = hci_sent_cmd_data(hdev, HCI_OP_EXIT_SNIFF_MODE);
1926 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
1928 clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->flags);
1930 if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags))
1931 hci_sco_setup(conn, status);
1934 hci_dev_unlock(hdev);
1937 static void hci_cs_disconnect(struct hci_dev *hdev, u8 status)
1939 struct hci_cp_disconnect *cp;
1940 struct hci_conn *conn;
1945 cp = hci_sent_cmd_data(hdev, HCI_OP_DISCONNECT);
1951 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
1953 mgmt_disconnect_failed(hdev, &conn->dst, conn->type,
1954 conn->dst_type, status);
1956 hci_dev_unlock(hdev);
1959 static void hci_cs_create_phylink(struct hci_dev *hdev, u8 status)
1961 struct hci_cp_create_phy_link *cp;
1963 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1965 cp = hci_sent_cmd_data(hdev, HCI_OP_CREATE_PHY_LINK);
1972 struct hci_conn *hcon;
1974 hcon = hci_conn_hash_lookup_handle(hdev, cp->phy_handle);
1978 amp_write_remote_assoc(hdev, cp->phy_handle);
1981 hci_dev_unlock(hdev);
1984 static void hci_cs_accept_phylink(struct hci_dev *hdev, u8 status)
1986 struct hci_cp_accept_phy_link *cp;
1988 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1993 cp = hci_sent_cmd_data(hdev, HCI_OP_ACCEPT_PHY_LINK);
1997 amp_write_remote_assoc(hdev, cp->phy_handle);
2000 static void hci_cs_le_create_conn(struct hci_dev *hdev, u8 status)
2002 struct hci_cp_le_create_conn *cp;
2003 struct hci_conn *conn;
2005 BT_DBG("%s status 0x%2.2x", hdev->name, status);
2007 /* All connection failure handling is taken care of by the
2008 * hci_le_conn_failed function which is triggered by the HCI
2009 * request completion callbacks used for connecting.
2014 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_CREATE_CONN);
2020 conn = hci_conn_hash_lookup_ba(hdev, LE_LINK, &cp->peer_addr);
2024 /* Store the initiator and responder address information which
2025 * is needed for SMP. These values will not change during the
2026 * lifetime of the connection.
2028 conn->init_addr_type = cp->own_address_type;
2029 if (cp->own_address_type == ADDR_LE_DEV_RANDOM)
2030 bacpy(&conn->init_addr, &hdev->random_addr);
2032 bacpy(&conn->init_addr, &hdev->bdaddr);
2034 conn->resp_addr_type = cp->peer_addr_type;
2035 bacpy(&conn->resp_addr, &cp->peer_addr);
2037 /* We don't want the connection attempt to stick around
2038 * indefinitely since LE doesn't have a page timeout concept
2039 * like BR/EDR. Set a timer for any connection that doesn't use
2040 * the white list for connecting.
2042 if (cp->filter_policy == HCI_LE_USE_PEER_ADDR)
2043 queue_delayed_work(conn->hdev->workqueue,
2044 &conn->le_conn_timeout,
2045 conn->conn_timeout);
2048 hci_dev_unlock(hdev);
2051 static void hci_cs_le_start_enc(struct hci_dev *hdev, u8 status)
2053 struct hci_cp_le_start_enc *cp;
2054 struct hci_conn *conn;
2056 BT_DBG("%s status 0x%2.2x", hdev->name, status);
2063 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_START_ENC);
2067 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2071 if (conn->state != BT_CONNECTED)
2074 hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE);
2075 hci_conn_drop(conn);
2078 hci_dev_unlock(hdev);
2081 static void hci_cs_switch_role(struct hci_dev *hdev, u8 status)
2083 struct hci_cp_switch_role *cp;
2084 struct hci_conn *conn;
2086 BT_DBG("%s status 0x%2.2x", hdev->name, status);
2091 cp = hci_sent_cmd_data(hdev, HCI_OP_SWITCH_ROLE);
2097 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
2099 clear_bit(HCI_CONN_RSWITCH_PEND, &conn->flags);
2101 hci_dev_unlock(hdev);
2104 static void hci_inquiry_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
2106 __u8 status = *((__u8 *) skb->data);
2107 struct discovery_state *discov = &hdev->discovery;
2108 struct inquiry_entry *e;
2110 BT_DBG("%s status 0x%2.2x", hdev->name, status);
2112 hci_conn_check_pending(hdev);
2114 if (!test_and_clear_bit(HCI_INQUIRY, &hdev->flags))
2117 smp_mb__after_atomic(); /* wake_up_bit advises about this barrier */
2118 wake_up_bit(&hdev->flags, HCI_INQUIRY);
2120 if (!hci_dev_test_flag(hdev, HCI_MGMT))
2125 if (discov->state != DISCOVERY_FINDING)
2128 if (list_empty(&discov->resolve)) {
2129 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
2133 e = hci_inquiry_cache_lookup_resolve(hdev, BDADDR_ANY, NAME_NEEDED);
2134 if (e && hci_resolve_name(hdev, e) == 0) {
2135 e->name_state = NAME_PENDING;
2136 hci_discovery_set_state(hdev, DISCOVERY_RESOLVING);
2138 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
2142 hci_dev_unlock(hdev);
2145 static void hci_inquiry_result_evt(struct hci_dev *hdev, struct sk_buff *skb)
2147 struct inquiry_data data;
2148 struct inquiry_info *info = (void *) (skb->data + 1);
2149 int num_rsp = *((__u8 *) skb->data);
2151 BT_DBG("%s num_rsp %d", hdev->name, num_rsp);
2156 if (hci_dev_test_flag(hdev, HCI_PERIODIC_INQ))
2161 for (; num_rsp; num_rsp--, info++) {
2164 bacpy(&data.bdaddr, &info->bdaddr);
2165 data.pscan_rep_mode = info->pscan_rep_mode;
2166 data.pscan_period_mode = info->pscan_period_mode;
2167 data.pscan_mode = info->pscan_mode;
2168 memcpy(data.dev_class, info->dev_class, 3);
2169 data.clock_offset = info->clock_offset;
2170 data.rssi = HCI_RSSI_INVALID;
2171 data.ssp_mode = 0x00;
2173 flags = hci_inquiry_cache_update(hdev, &data, false);
2175 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
2176 info->dev_class, HCI_RSSI_INVALID,
2177 flags, NULL, 0, NULL, 0);
2180 hci_dev_unlock(hdev);
2183 static void hci_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
2185 struct hci_ev_conn_complete *ev = (void *) skb->data;
2186 struct hci_conn *conn;
2188 BT_DBG("%s", hdev->name);
2192 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr);
2194 if (ev->link_type != SCO_LINK)
2197 conn = hci_conn_hash_lookup_ba(hdev, ESCO_LINK, &ev->bdaddr);
2201 conn->type = SCO_LINK;
2205 conn->handle = __le16_to_cpu(ev->handle);
2207 if (conn->type == ACL_LINK) {
2208 conn->state = BT_CONFIG;
2209 hci_conn_hold(conn);
2211 if (!conn->out && !hci_conn_ssp_enabled(conn) &&
2212 !hci_find_link_key(hdev, &ev->bdaddr))
2213 conn->disc_timeout = HCI_PAIRING_TIMEOUT;
2215 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
2217 conn->state = BT_CONNECTED;
2219 hci_debugfs_create_conn(conn);
2220 hci_conn_add_sysfs(conn);
2222 if (test_bit(HCI_AUTH, &hdev->flags))
2223 set_bit(HCI_CONN_AUTH, &conn->flags);
2225 if (test_bit(HCI_ENCRYPT, &hdev->flags))
2226 set_bit(HCI_CONN_ENCRYPT, &conn->flags);
2228 /* Get remote features */
2229 if (conn->type == ACL_LINK) {
2230 struct hci_cp_read_remote_features cp;
2231 cp.handle = ev->handle;
2232 hci_send_cmd(hdev, HCI_OP_READ_REMOTE_FEATURES,
2235 hci_update_page_scan(hdev);
2238 /* Set packet type for incoming connection */
2239 if (!conn->out && hdev->hci_ver < BLUETOOTH_VER_2_0) {
2240 struct hci_cp_change_conn_ptype cp;
2241 cp.handle = ev->handle;
2242 cp.pkt_type = cpu_to_le16(conn->pkt_type);
2243 hci_send_cmd(hdev, HCI_OP_CHANGE_CONN_PTYPE, sizeof(cp),
2247 conn->state = BT_CLOSED;
2248 if (conn->type == ACL_LINK)
2249 mgmt_connect_failed(hdev, &conn->dst, conn->type,
2250 conn->dst_type, ev->status);
2253 if (conn->type == ACL_LINK)
2254 hci_sco_setup(conn, ev->status);
2257 hci_connect_cfm(conn, ev->status);
2259 } else if (ev->link_type != ACL_LINK)
2260 hci_connect_cfm(conn, ev->status);
2263 hci_dev_unlock(hdev);
2265 hci_conn_check_pending(hdev);
2268 static void hci_reject_conn(struct hci_dev *hdev, bdaddr_t *bdaddr)
2270 struct hci_cp_reject_conn_req cp;
2272 bacpy(&cp.bdaddr, bdaddr);
2273 cp.reason = HCI_ERROR_REJ_BAD_ADDR;
2274 hci_send_cmd(hdev, HCI_OP_REJECT_CONN_REQ, sizeof(cp), &cp);
2277 static void hci_conn_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
2279 struct hci_ev_conn_request *ev = (void *) skb->data;
2280 int mask = hdev->link_mode;
2281 struct inquiry_entry *ie;
2282 struct hci_conn *conn;
2285 BT_DBG("%s bdaddr %pMR type 0x%x", hdev->name, &ev->bdaddr,
2288 mask |= hci_proto_connect_ind(hdev, &ev->bdaddr, ev->link_type,
2291 if (!(mask & HCI_LM_ACCEPT)) {
2292 hci_reject_conn(hdev, &ev->bdaddr);
2296 if (hci_bdaddr_list_lookup(&hdev->blacklist, &ev->bdaddr,
2298 hci_reject_conn(hdev, &ev->bdaddr);
2302 /* Require HCI_CONNECTABLE or a whitelist entry to accept the
2303 * connection. These features are only touched through mgmt so
2304 * only do the checks if HCI_MGMT is set.
2306 if (hci_dev_test_flag(hdev, HCI_MGMT) &&
2307 !hci_dev_test_flag(hdev, HCI_CONNECTABLE) &&
2308 !hci_bdaddr_list_lookup(&hdev->whitelist, &ev->bdaddr,
2310 hci_reject_conn(hdev, &ev->bdaddr);
2314 /* Connection accepted */
2318 ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
2320 memcpy(ie->data.dev_class, ev->dev_class, 3);
2322 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type,
2325 conn = hci_conn_add(hdev, ev->link_type, &ev->bdaddr,
2328 BT_ERR("No memory for new connection");
2329 hci_dev_unlock(hdev);
2334 memcpy(conn->dev_class, ev->dev_class, 3);
2336 hci_dev_unlock(hdev);
2338 if (ev->link_type == ACL_LINK ||
2339 (!(flags & HCI_PROTO_DEFER) && !lmp_esco_capable(hdev))) {
2340 struct hci_cp_accept_conn_req cp;
2341 conn->state = BT_CONNECT;
2343 bacpy(&cp.bdaddr, &ev->bdaddr);
2345 if (lmp_rswitch_capable(hdev) && (mask & HCI_LM_MASTER))
2346 cp.role = 0x00; /* Become master */
2348 cp.role = 0x01; /* Remain slave */
2350 hci_send_cmd(hdev, HCI_OP_ACCEPT_CONN_REQ, sizeof(cp), &cp);
2351 } else if (!(flags & HCI_PROTO_DEFER)) {
2352 struct hci_cp_accept_sync_conn_req cp;
2353 conn->state = BT_CONNECT;
2355 bacpy(&cp.bdaddr, &ev->bdaddr);
2356 cp.pkt_type = cpu_to_le16(conn->pkt_type);
2358 cp.tx_bandwidth = cpu_to_le32(0x00001f40);
2359 cp.rx_bandwidth = cpu_to_le32(0x00001f40);
2360 cp.max_latency = cpu_to_le16(0xffff);
2361 cp.content_format = cpu_to_le16(hdev->voice_setting);
2362 cp.retrans_effort = 0xff;
2364 hci_send_cmd(hdev, HCI_OP_ACCEPT_SYNC_CONN_REQ, sizeof(cp),
2367 conn->state = BT_CONNECT2;
2368 hci_connect_cfm(conn, 0);
2372 static u8 hci_to_mgmt_reason(u8 err)
2375 case HCI_ERROR_CONNECTION_TIMEOUT:
2376 return MGMT_DEV_DISCONN_TIMEOUT;
2377 case HCI_ERROR_REMOTE_USER_TERM:
2378 case HCI_ERROR_REMOTE_LOW_RESOURCES:
2379 case HCI_ERROR_REMOTE_POWER_OFF:
2380 return MGMT_DEV_DISCONN_REMOTE;
2381 case HCI_ERROR_LOCAL_HOST_TERM:
2382 return MGMT_DEV_DISCONN_LOCAL_HOST;
2384 return MGMT_DEV_DISCONN_UNKNOWN;
2388 static void hci_disconn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
2390 struct hci_ev_disconn_complete *ev = (void *) skb->data;
2391 u8 reason = hci_to_mgmt_reason(ev->reason);
2392 struct hci_conn_params *params;
2393 struct hci_conn *conn;
2394 bool mgmt_connected;
2397 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
2401 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
2406 mgmt_disconnect_failed(hdev, &conn->dst, conn->type,
2407 conn->dst_type, ev->status);
2411 conn->state = BT_CLOSED;
2413 mgmt_connected = test_and_clear_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags);
2414 mgmt_device_disconnected(hdev, &conn->dst, conn->type, conn->dst_type,
2415 reason, mgmt_connected);
2417 if (conn->type == ACL_LINK) {
2418 if (test_bit(HCI_CONN_FLUSH_KEY, &conn->flags))
2419 hci_remove_link_key(hdev, &conn->dst);
2421 hci_update_page_scan(hdev);
2424 params = hci_conn_params_lookup(hdev, &conn->dst, conn->dst_type);
2426 switch (params->auto_connect) {
2427 case HCI_AUTO_CONN_LINK_LOSS:
2428 if (ev->reason != HCI_ERROR_CONNECTION_TIMEOUT)
2432 case HCI_AUTO_CONN_DIRECT:
2433 case HCI_AUTO_CONN_ALWAYS:
2434 list_del_init(¶ms->action);
2435 list_add(¶ms->action, &hdev->pend_le_conns);
2436 hci_update_background_scan(hdev);
2446 hci_disconn_cfm(conn, ev->reason);
2449 /* Re-enable advertising if necessary, since it might
2450 * have been disabled by the connection. From the
2451 * HCI_LE_Set_Advertise_Enable command description in
2452 * the core specification (v4.0):
2453 * "The Controller shall continue advertising until the Host
2454 * issues an LE_Set_Advertise_Enable command with
2455 * Advertising_Enable set to 0x00 (Advertising is disabled)
2456 * or until a connection is created or until the Advertising
2457 * is timed out due to Directed Advertising."
2459 if (type == LE_LINK)
2460 mgmt_reenable_advertising(hdev);
2463 hci_dev_unlock(hdev);
2466 static void hci_auth_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
2468 struct hci_ev_auth_complete *ev = (void *) skb->data;
2469 struct hci_conn *conn;
2471 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
2475 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
2480 if (!hci_conn_ssp_enabled(conn) &&
2481 test_bit(HCI_CONN_REAUTH_PEND, &conn->flags)) {
2482 BT_INFO("re-auth of legacy device is not possible.");
2484 set_bit(HCI_CONN_AUTH, &conn->flags);
2485 conn->sec_level = conn->pending_sec_level;
2488 mgmt_auth_failed(conn, ev->status);
2491 clear_bit(HCI_CONN_AUTH_PEND, &conn->flags);
2492 clear_bit(HCI_CONN_REAUTH_PEND, &conn->flags);
2494 if (conn->state == BT_CONFIG) {
2495 if (!ev->status && hci_conn_ssp_enabled(conn)) {
2496 struct hci_cp_set_conn_encrypt cp;
2497 cp.handle = ev->handle;
2499 hci_send_cmd(hdev, HCI_OP_SET_CONN_ENCRYPT, sizeof(cp),
2502 conn->state = BT_CONNECTED;
2503 hci_connect_cfm(conn, ev->status);
2504 hci_conn_drop(conn);
2507 hci_auth_cfm(conn, ev->status);
2509 hci_conn_hold(conn);
2510 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
2511 hci_conn_drop(conn);
2514 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) {
2516 struct hci_cp_set_conn_encrypt cp;
2517 cp.handle = ev->handle;
2519 hci_send_cmd(hdev, HCI_OP_SET_CONN_ENCRYPT, sizeof(cp),
2522 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
2523 hci_encrypt_cfm(conn, ev->status, 0x00);
2528 hci_dev_unlock(hdev);
2531 static void hci_remote_name_evt(struct hci_dev *hdev, struct sk_buff *skb)
2533 struct hci_ev_remote_name *ev = (void *) skb->data;
2534 struct hci_conn *conn;
2536 BT_DBG("%s", hdev->name);
2538 hci_conn_check_pending(hdev);
2542 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
2544 if (!hci_dev_test_flag(hdev, HCI_MGMT))
2547 if (ev->status == 0)
2548 hci_check_pending_name(hdev, conn, &ev->bdaddr, ev->name,
2549 strnlen(ev->name, HCI_MAX_NAME_LENGTH));
2551 hci_check_pending_name(hdev, conn, &ev->bdaddr, NULL, 0);
2557 if (!hci_outgoing_auth_needed(hdev, conn))
2560 if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->flags)) {
2561 struct hci_cp_auth_requested cp;
2563 set_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags);
2565 cp.handle = __cpu_to_le16(conn->handle);
2566 hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED, sizeof(cp), &cp);
2570 hci_dev_unlock(hdev);
2573 static void hci_encrypt_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
2575 struct hci_ev_encrypt_change *ev = (void *) skb->data;
2576 struct hci_conn *conn;
2578 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
2582 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
2588 /* Encryption implies authentication */
2589 set_bit(HCI_CONN_AUTH, &conn->flags);
2590 set_bit(HCI_CONN_ENCRYPT, &conn->flags);
2591 conn->sec_level = conn->pending_sec_level;
2593 /* P-256 authentication key implies FIPS */
2594 if (conn->key_type == HCI_LK_AUTH_COMBINATION_P256)
2595 set_bit(HCI_CONN_FIPS, &conn->flags);
2597 if ((conn->type == ACL_LINK && ev->encrypt == 0x02) ||
2598 conn->type == LE_LINK)
2599 set_bit(HCI_CONN_AES_CCM, &conn->flags);
2601 clear_bit(HCI_CONN_ENCRYPT, &conn->flags);
2602 clear_bit(HCI_CONN_AES_CCM, &conn->flags);
2606 /* We should disregard the current RPA and generate a new one
2607 * whenever the encryption procedure fails.
2609 if (ev->status && conn->type == LE_LINK)
2610 hci_dev_set_flag(hdev, HCI_RPA_EXPIRED);
2612 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
2614 if (ev->status && conn->state == BT_CONNECTED) {
2615 hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE);
2616 hci_conn_drop(conn);
2620 if (conn->state == BT_CONFIG) {
2622 conn->state = BT_CONNECTED;
2624 /* In Secure Connections Only mode, do not allow any
2625 * connections that are not encrypted with AES-CCM
2626 * using a P-256 authenticated combination key.
2628 if (hci_dev_test_flag(hdev, HCI_SC_ONLY) &&
2629 (!test_bit(HCI_CONN_AES_CCM, &conn->flags) ||
2630 conn->key_type != HCI_LK_AUTH_COMBINATION_P256)) {
2631 hci_connect_cfm(conn, HCI_ERROR_AUTH_FAILURE);
2632 hci_conn_drop(conn);
2636 hci_connect_cfm(conn, ev->status);
2637 hci_conn_drop(conn);
2639 hci_encrypt_cfm(conn, ev->status, ev->encrypt);
2642 hci_dev_unlock(hdev);
2645 static void hci_change_link_key_complete_evt(struct hci_dev *hdev,
2646 struct sk_buff *skb)
2648 struct hci_ev_change_link_key_complete *ev = (void *) skb->data;
2649 struct hci_conn *conn;
2651 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
2655 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
2658 set_bit(HCI_CONN_SECURE, &conn->flags);
2660 clear_bit(HCI_CONN_AUTH_PEND, &conn->flags);
2662 hci_key_change_cfm(conn, ev->status);
2665 hci_dev_unlock(hdev);
2668 static void hci_remote_features_evt(struct hci_dev *hdev,
2669 struct sk_buff *skb)
2671 struct hci_ev_remote_features *ev = (void *) skb->data;
2672 struct hci_conn *conn;
2674 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
2678 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
2683 memcpy(conn->features[0], ev->features, 8);
2685 if (conn->state != BT_CONFIG)
2688 if (!ev->status && lmp_ext_feat_capable(hdev) &&
2689 lmp_ext_feat_capable(conn)) {
2690 struct hci_cp_read_remote_ext_features cp;
2691 cp.handle = ev->handle;
2693 hci_send_cmd(hdev, HCI_OP_READ_REMOTE_EXT_FEATURES,
2698 if (!ev->status && !test_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags)) {
2699 struct hci_cp_remote_name_req cp;
2700 memset(&cp, 0, sizeof(cp));
2701 bacpy(&cp.bdaddr, &conn->dst);
2702 cp.pscan_rep_mode = 0x02;
2703 hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp);
2704 } else if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
2705 mgmt_device_connected(hdev, conn, 0, NULL, 0);
2707 if (!hci_outgoing_auth_needed(hdev, conn)) {
2708 conn->state = BT_CONNECTED;
2709 hci_connect_cfm(conn, ev->status);
2710 hci_conn_drop(conn);
2714 hci_dev_unlock(hdev);
2717 static void hci_cmd_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
2719 struct hci_ev_cmd_complete *ev = (void *) skb->data;
2720 u8 status = skb->data[sizeof(*ev)];
2723 skb_pull(skb, sizeof(*ev));
2725 opcode = __le16_to_cpu(ev->opcode);
2728 case HCI_OP_INQUIRY_CANCEL:
2729 hci_cc_inquiry_cancel(hdev, skb);
2732 case HCI_OP_PERIODIC_INQ:
2733 hci_cc_periodic_inq(hdev, skb);
2736 case HCI_OP_EXIT_PERIODIC_INQ:
2737 hci_cc_exit_periodic_inq(hdev, skb);
2740 case HCI_OP_REMOTE_NAME_REQ_CANCEL:
2741 hci_cc_remote_name_req_cancel(hdev, skb);
2744 case HCI_OP_ROLE_DISCOVERY:
2745 hci_cc_role_discovery(hdev, skb);
2748 case HCI_OP_READ_LINK_POLICY:
2749 hci_cc_read_link_policy(hdev, skb);
2752 case HCI_OP_WRITE_LINK_POLICY:
2753 hci_cc_write_link_policy(hdev, skb);
2756 case HCI_OP_READ_DEF_LINK_POLICY:
2757 hci_cc_read_def_link_policy(hdev, skb);
2760 case HCI_OP_WRITE_DEF_LINK_POLICY:
2761 hci_cc_write_def_link_policy(hdev, skb);
2765 hci_cc_reset(hdev, skb);
2768 case HCI_OP_READ_STORED_LINK_KEY:
2769 hci_cc_read_stored_link_key(hdev, skb);
2772 case HCI_OP_DELETE_STORED_LINK_KEY:
2773 hci_cc_delete_stored_link_key(hdev, skb);
2776 case HCI_OP_WRITE_LOCAL_NAME:
2777 hci_cc_write_local_name(hdev, skb);
2780 case HCI_OP_READ_LOCAL_NAME:
2781 hci_cc_read_local_name(hdev, skb);
2784 case HCI_OP_WRITE_AUTH_ENABLE:
2785 hci_cc_write_auth_enable(hdev, skb);
2788 case HCI_OP_WRITE_ENCRYPT_MODE:
2789 hci_cc_write_encrypt_mode(hdev, skb);
2792 case HCI_OP_WRITE_SCAN_ENABLE:
2793 hci_cc_write_scan_enable(hdev, skb);
2796 case HCI_OP_READ_CLASS_OF_DEV:
2797 hci_cc_read_class_of_dev(hdev, skb);
2800 case HCI_OP_WRITE_CLASS_OF_DEV:
2801 hci_cc_write_class_of_dev(hdev, skb);
2804 case HCI_OP_READ_VOICE_SETTING:
2805 hci_cc_read_voice_setting(hdev, skb);
2808 case HCI_OP_WRITE_VOICE_SETTING:
2809 hci_cc_write_voice_setting(hdev, skb);
2812 case HCI_OP_READ_NUM_SUPPORTED_IAC:
2813 hci_cc_read_num_supported_iac(hdev, skb);
2816 case HCI_OP_WRITE_SSP_MODE:
2817 hci_cc_write_ssp_mode(hdev, skb);
2820 case HCI_OP_WRITE_SC_SUPPORT:
2821 hci_cc_write_sc_support(hdev, skb);
2824 case HCI_OP_READ_LOCAL_VERSION:
2825 hci_cc_read_local_version(hdev, skb);
2828 case HCI_OP_READ_LOCAL_COMMANDS:
2829 hci_cc_read_local_commands(hdev, skb);
2832 case HCI_OP_READ_LOCAL_FEATURES:
2833 hci_cc_read_local_features(hdev, skb);
2836 case HCI_OP_READ_LOCAL_EXT_FEATURES:
2837 hci_cc_read_local_ext_features(hdev, skb);
2840 case HCI_OP_READ_BUFFER_SIZE:
2841 hci_cc_read_buffer_size(hdev, skb);
2844 case HCI_OP_READ_BD_ADDR:
2845 hci_cc_read_bd_addr(hdev, skb);
2848 case HCI_OP_READ_PAGE_SCAN_ACTIVITY:
2849 hci_cc_read_page_scan_activity(hdev, skb);
2852 case HCI_OP_WRITE_PAGE_SCAN_ACTIVITY:
2853 hci_cc_write_page_scan_activity(hdev, skb);
2856 case HCI_OP_READ_PAGE_SCAN_TYPE:
2857 hci_cc_read_page_scan_type(hdev, skb);
2860 case HCI_OP_WRITE_PAGE_SCAN_TYPE:
2861 hci_cc_write_page_scan_type(hdev, skb);
2864 case HCI_OP_READ_DATA_BLOCK_SIZE:
2865 hci_cc_read_data_block_size(hdev, skb);
2868 case HCI_OP_READ_FLOW_CONTROL_MODE:
2869 hci_cc_read_flow_control_mode(hdev, skb);
2872 case HCI_OP_READ_LOCAL_AMP_INFO:
2873 hci_cc_read_local_amp_info(hdev, skb);
2876 case HCI_OP_READ_CLOCK:
2877 hci_cc_read_clock(hdev, skb);
2880 case HCI_OP_READ_LOCAL_AMP_ASSOC:
2881 hci_cc_read_local_amp_assoc(hdev, skb);
2884 case HCI_OP_READ_INQ_RSP_TX_POWER:
2885 hci_cc_read_inq_rsp_tx_power(hdev, skb);
2888 case HCI_OP_PIN_CODE_REPLY:
2889 hci_cc_pin_code_reply(hdev, skb);
2892 case HCI_OP_PIN_CODE_NEG_REPLY:
2893 hci_cc_pin_code_neg_reply(hdev, skb);
2896 case HCI_OP_READ_LOCAL_OOB_DATA:
2897 hci_cc_read_local_oob_data(hdev, skb);
2900 case HCI_OP_READ_LOCAL_OOB_EXT_DATA:
2901 hci_cc_read_local_oob_ext_data(hdev, skb);
2904 case HCI_OP_LE_READ_BUFFER_SIZE:
2905 hci_cc_le_read_buffer_size(hdev, skb);
2908 case HCI_OP_LE_READ_LOCAL_FEATURES:
2909 hci_cc_le_read_local_features(hdev, skb);
2912 case HCI_OP_LE_READ_ADV_TX_POWER:
2913 hci_cc_le_read_adv_tx_power(hdev, skb);
2916 case HCI_OP_USER_CONFIRM_REPLY:
2917 hci_cc_user_confirm_reply(hdev, skb);
2920 case HCI_OP_USER_CONFIRM_NEG_REPLY:
2921 hci_cc_user_confirm_neg_reply(hdev, skb);
2924 case HCI_OP_USER_PASSKEY_REPLY:
2925 hci_cc_user_passkey_reply(hdev, skb);
2928 case HCI_OP_USER_PASSKEY_NEG_REPLY:
2929 hci_cc_user_passkey_neg_reply(hdev, skb);
2932 case HCI_OP_LE_SET_RANDOM_ADDR:
2933 hci_cc_le_set_random_addr(hdev, skb);
2936 case HCI_OP_LE_SET_ADV_ENABLE:
2937 hci_cc_le_set_adv_enable(hdev, skb);
2940 case HCI_OP_LE_SET_SCAN_PARAM:
2941 hci_cc_le_set_scan_param(hdev, skb);
2944 case HCI_OP_LE_SET_SCAN_ENABLE:
2945 hci_cc_le_set_scan_enable(hdev, skb);
2948 case HCI_OP_LE_READ_WHITE_LIST_SIZE:
2949 hci_cc_le_read_white_list_size(hdev, skb);
2952 case HCI_OP_LE_CLEAR_WHITE_LIST:
2953 hci_cc_le_clear_white_list(hdev, skb);
2956 case HCI_OP_LE_ADD_TO_WHITE_LIST:
2957 hci_cc_le_add_to_white_list(hdev, skb);
2960 case HCI_OP_LE_DEL_FROM_WHITE_LIST:
2961 hci_cc_le_del_from_white_list(hdev, skb);
2964 case HCI_OP_LE_READ_SUPPORTED_STATES:
2965 hci_cc_le_read_supported_states(hdev, skb);
2968 case HCI_OP_LE_READ_DEF_DATA_LEN:
2969 hci_cc_le_read_def_data_len(hdev, skb);
2972 case HCI_OP_LE_WRITE_DEF_DATA_LEN:
2973 hci_cc_le_write_def_data_len(hdev, skb);
2976 case HCI_OP_LE_READ_MAX_DATA_LEN:
2977 hci_cc_le_read_max_data_len(hdev, skb);
2980 case HCI_OP_WRITE_LE_HOST_SUPPORTED:
2981 hci_cc_write_le_host_supported(hdev, skb);
2984 case HCI_OP_LE_SET_ADV_PARAM:
2985 hci_cc_set_adv_param(hdev, skb);
2988 case HCI_OP_WRITE_REMOTE_AMP_ASSOC:
2989 hci_cc_write_remote_amp_assoc(hdev, skb);
2992 case HCI_OP_READ_RSSI:
2993 hci_cc_read_rssi(hdev, skb);
2996 case HCI_OP_READ_TX_POWER:
2997 hci_cc_read_tx_power(hdev, skb);
3000 case HCI_OP_WRITE_SSP_DEBUG_MODE:
3001 hci_cc_write_ssp_debug_mode(hdev, skb);
3005 BT_DBG("%s opcode 0x%4.4x", hdev->name, opcode);
3009 if (opcode != HCI_OP_NOP)
3010 cancel_delayed_work(&hdev->cmd_timer);
3012 hci_req_cmd_complete(hdev, opcode, status);
3014 if (ev->ncmd && !test_bit(HCI_RESET, &hdev->flags)) {
3015 atomic_set(&hdev->cmd_cnt, 1);
3016 if (!skb_queue_empty(&hdev->cmd_q))
3017 queue_work(hdev->workqueue, &hdev->cmd_work);
3021 static void hci_cmd_status_evt(struct hci_dev *hdev, struct sk_buff *skb)
3023 struct hci_ev_cmd_status *ev = (void *) skb->data;
3026 skb_pull(skb, sizeof(*ev));
3028 opcode = __le16_to_cpu(ev->opcode);
3031 case HCI_OP_INQUIRY:
3032 hci_cs_inquiry(hdev, ev->status);
3035 case HCI_OP_CREATE_CONN:
3036 hci_cs_create_conn(hdev, ev->status);
3039 case HCI_OP_DISCONNECT:
3040 hci_cs_disconnect(hdev, ev->status);
3043 case HCI_OP_ADD_SCO:
3044 hci_cs_add_sco(hdev, ev->status);
3047 case HCI_OP_AUTH_REQUESTED:
3048 hci_cs_auth_requested(hdev, ev->status);
3051 case HCI_OP_SET_CONN_ENCRYPT:
3052 hci_cs_set_conn_encrypt(hdev, ev->status);
3055 case HCI_OP_REMOTE_NAME_REQ:
3056 hci_cs_remote_name_req(hdev, ev->status);
3059 case HCI_OP_READ_REMOTE_FEATURES:
3060 hci_cs_read_remote_features(hdev, ev->status);
3063 case HCI_OP_READ_REMOTE_EXT_FEATURES:
3064 hci_cs_read_remote_ext_features(hdev, ev->status);
3067 case HCI_OP_SETUP_SYNC_CONN:
3068 hci_cs_setup_sync_conn(hdev, ev->status);
3071 case HCI_OP_CREATE_PHY_LINK:
3072 hci_cs_create_phylink(hdev, ev->status);
3075 case HCI_OP_ACCEPT_PHY_LINK:
3076 hci_cs_accept_phylink(hdev, ev->status);
3079 case HCI_OP_SNIFF_MODE:
3080 hci_cs_sniff_mode(hdev, ev->status);
3083 case HCI_OP_EXIT_SNIFF_MODE:
3084 hci_cs_exit_sniff_mode(hdev, ev->status);
3087 case HCI_OP_SWITCH_ROLE:
3088 hci_cs_switch_role(hdev, ev->status);
3091 case HCI_OP_LE_CREATE_CONN:
3092 hci_cs_le_create_conn(hdev, ev->status);
3095 case HCI_OP_LE_START_ENC:
3096 hci_cs_le_start_enc(hdev, ev->status);
3100 BT_DBG("%s opcode 0x%4.4x", hdev->name, opcode);
3104 if (opcode != HCI_OP_NOP)
3105 cancel_delayed_work(&hdev->cmd_timer);
3108 (hdev->sent_cmd && !bt_cb(hdev->sent_cmd)->req_event))
3109 hci_req_cmd_complete(hdev, opcode, ev->status);
3111 if (ev->ncmd && !test_bit(HCI_RESET, &hdev->flags)) {
3112 atomic_set(&hdev->cmd_cnt, 1);
3113 if (!skb_queue_empty(&hdev->cmd_q))
3114 queue_work(hdev->workqueue, &hdev->cmd_work);
3118 static void hci_hardware_error_evt(struct hci_dev *hdev, struct sk_buff *skb)
3120 struct hci_ev_hardware_error *ev = (void *) skb->data;
3122 hdev->hw_error_code = ev->code;
3124 queue_work(hdev->req_workqueue, &hdev->error_reset);
3127 static void hci_role_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
3129 struct hci_ev_role_change *ev = (void *) skb->data;
3130 struct hci_conn *conn;
3132 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
3136 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
3139 conn->role = ev->role;
3141 clear_bit(HCI_CONN_RSWITCH_PEND, &conn->flags);
3143 hci_role_switch_cfm(conn, ev->status, ev->role);
3146 hci_dev_unlock(hdev);
3149 static void hci_num_comp_pkts_evt(struct hci_dev *hdev, struct sk_buff *skb)
3151 struct hci_ev_num_comp_pkts *ev = (void *) skb->data;
3154 if (hdev->flow_ctl_mode != HCI_FLOW_CTL_MODE_PACKET_BASED) {
3155 BT_ERR("Wrong event for mode %d", hdev->flow_ctl_mode);
3159 if (skb->len < sizeof(*ev) || skb->len < sizeof(*ev) +
3160 ev->num_hndl * sizeof(struct hci_comp_pkts_info)) {
3161 BT_DBG("%s bad parameters", hdev->name);
3165 BT_DBG("%s num_hndl %d", hdev->name, ev->num_hndl);
3167 for (i = 0; i < ev->num_hndl; i++) {
3168 struct hci_comp_pkts_info *info = &ev->handles[i];
3169 struct hci_conn *conn;
3170 __u16 handle, count;
3172 handle = __le16_to_cpu(info->handle);
3173 count = __le16_to_cpu(info->count);
3175 conn = hci_conn_hash_lookup_handle(hdev, handle);
3179 conn->sent -= count;
3181 switch (conn->type) {
3183 hdev->acl_cnt += count;
3184 if (hdev->acl_cnt > hdev->acl_pkts)
3185 hdev->acl_cnt = hdev->acl_pkts;
3189 if (hdev->le_pkts) {
3190 hdev->le_cnt += count;
3191 if (hdev->le_cnt > hdev->le_pkts)
3192 hdev->le_cnt = hdev->le_pkts;
3194 hdev->acl_cnt += count;
3195 if (hdev->acl_cnt > hdev->acl_pkts)
3196 hdev->acl_cnt = hdev->acl_pkts;
3201 hdev->sco_cnt += count;
3202 if (hdev->sco_cnt > hdev->sco_pkts)
3203 hdev->sco_cnt = hdev->sco_pkts;
3207 BT_ERR("Unknown type %d conn %p", conn->type, conn);
3212 queue_work(hdev->workqueue, &hdev->tx_work);
3215 static struct hci_conn *__hci_conn_lookup_handle(struct hci_dev *hdev,
3218 struct hci_chan *chan;
3220 switch (hdev->dev_type) {
3222 return hci_conn_hash_lookup_handle(hdev, handle);
3224 chan = hci_chan_lookup_handle(hdev, handle);
3229 BT_ERR("%s unknown dev_type %d", hdev->name, hdev->dev_type);
3236 static void hci_num_comp_blocks_evt(struct hci_dev *hdev, struct sk_buff *skb)
3238 struct hci_ev_num_comp_blocks *ev = (void *) skb->data;
3241 if (hdev->flow_ctl_mode != HCI_FLOW_CTL_MODE_BLOCK_BASED) {
3242 BT_ERR("Wrong event for mode %d", hdev->flow_ctl_mode);
3246 if (skb->len < sizeof(*ev) || skb->len < sizeof(*ev) +
3247 ev->num_hndl * sizeof(struct hci_comp_blocks_info)) {
3248 BT_DBG("%s bad parameters", hdev->name);
3252 BT_DBG("%s num_blocks %d num_hndl %d", hdev->name, ev->num_blocks,
3255 for (i = 0; i < ev->num_hndl; i++) {
3256 struct hci_comp_blocks_info *info = &ev->handles[i];
3257 struct hci_conn *conn = NULL;
3258 __u16 handle, block_count;
3260 handle = __le16_to_cpu(info->handle);
3261 block_count = __le16_to_cpu(info->blocks);
3263 conn = __hci_conn_lookup_handle(hdev, handle);
3267 conn->sent -= block_count;
3269 switch (conn->type) {
3272 hdev->block_cnt += block_count;
3273 if (hdev->block_cnt > hdev->num_blocks)
3274 hdev->block_cnt = hdev->num_blocks;
3278 BT_ERR("Unknown type %d conn %p", conn->type, conn);
3283 queue_work(hdev->workqueue, &hdev->tx_work);
3286 static void hci_mode_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
3288 struct hci_ev_mode_change *ev = (void *) skb->data;
3289 struct hci_conn *conn;
3291 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
3295 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3297 conn->mode = ev->mode;
3299 if (!test_and_clear_bit(HCI_CONN_MODE_CHANGE_PEND,
3301 if (conn->mode == HCI_CM_ACTIVE)
3302 set_bit(HCI_CONN_POWER_SAVE, &conn->flags);
3304 clear_bit(HCI_CONN_POWER_SAVE, &conn->flags);
3307 if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags))
3308 hci_sco_setup(conn, ev->status);
3311 hci_dev_unlock(hdev);
3314 static void hci_pin_code_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
3316 struct hci_ev_pin_code_req *ev = (void *) skb->data;
3317 struct hci_conn *conn;
3319 BT_DBG("%s", hdev->name);
3323 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
3327 if (conn->state == BT_CONNECTED) {
3328 hci_conn_hold(conn);
3329 conn->disc_timeout = HCI_PAIRING_TIMEOUT;
3330 hci_conn_drop(conn);
3333 if (!hci_dev_test_flag(hdev, HCI_BONDABLE) &&
3334 !test_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags)) {
3335 hci_send_cmd(hdev, HCI_OP_PIN_CODE_NEG_REPLY,
3336 sizeof(ev->bdaddr), &ev->bdaddr);
3337 } else if (hci_dev_test_flag(hdev, HCI_MGMT)) {
3340 if (conn->pending_sec_level == BT_SECURITY_HIGH)
3345 mgmt_pin_code_request(hdev, &ev->bdaddr, secure);
3349 hci_dev_unlock(hdev);
3352 static void conn_set_key(struct hci_conn *conn, u8 key_type, u8 pin_len)
3354 if (key_type == HCI_LK_CHANGED_COMBINATION)
3357 conn->pin_length = pin_len;
3358 conn->key_type = key_type;
3361 case HCI_LK_LOCAL_UNIT:
3362 case HCI_LK_REMOTE_UNIT:
3363 case HCI_LK_DEBUG_COMBINATION:
3365 case HCI_LK_COMBINATION:
3367 conn->pending_sec_level = BT_SECURITY_HIGH;
3369 conn->pending_sec_level = BT_SECURITY_MEDIUM;
3371 case HCI_LK_UNAUTH_COMBINATION_P192:
3372 case HCI_LK_UNAUTH_COMBINATION_P256:
3373 conn->pending_sec_level = BT_SECURITY_MEDIUM;
3375 case HCI_LK_AUTH_COMBINATION_P192:
3376 conn->pending_sec_level = BT_SECURITY_HIGH;
3378 case HCI_LK_AUTH_COMBINATION_P256:
3379 conn->pending_sec_level = BT_SECURITY_FIPS;
3384 static void hci_link_key_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
3386 struct hci_ev_link_key_req *ev = (void *) skb->data;
3387 struct hci_cp_link_key_reply cp;
3388 struct hci_conn *conn;
3389 struct link_key *key;
3391 BT_DBG("%s", hdev->name);
3393 if (!hci_dev_test_flag(hdev, HCI_MGMT))
3398 key = hci_find_link_key(hdev, &ev->bdaddr);
3400 BT_DBG("%s link key not found for %pMR", hdev->name,
3405 BT_DBG("%s found key type %u for %pMR", hdev->name, key->type,
3408 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
3410 clear_bit(HCI_CONN_NEW_LINK_KEY, &conn->flags);
3412 if ((key->type == HCI_LK_UNAUTH_COMBINATION_P192 ||
3413 key->type == HCI_LK_UNAUTH_COMBINATION_P256) &&
3414 conn->auth_type != 0xff && (conn->auth_type & 0x01)) {
3415 BT_DBG("%s ignoring unauthenticated key", hdev->name);
3419 if (key->type == HCI_LK_COMBINATION && key->pin_len < 16 &&
3420 (conn->pending_sec_level == BT_SECURITY_HIGH ||
3421 conn->pending_sec_level == BT_SECURITY_FIPS)) {
3422 BT_DBG("%s ignoring key unauthenticated for high security",
3427 conn_set_key(conn, key->type, key->pin_len);
3430 bacpy(&cp.bdaddr, &ev->bdaddr);
3431 memcpy(cp.link_key, key->val, HCI_LINK_KEY_SIZE);
3433 hci_send_cmd(hdev, HCI_OP_LINK_KEY_REPLY, sizeof(cp), &cp);
3435 hci_dev_unlock(hdev);
3440 hci_send_cmd(hdev, HCI_OP_LINK_KEY_NEG_REPLY, 6, &ev->bdaddr);
3441 hci_dev_unlock(hdev);
3444 static void hci_link_key_notify_evt(struct hci_dev *hdev, struct sk_buff *skb)
3446 struct hci_ev_link_key_notify *ev = (void *) skb->data;
3447 struct hci_conn *conn;
3448 struct link_key *key;
3452 BT_DBG("%s", hdev->name);
3456 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
3460 hci_conn_hold(conn);
3461 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
3462 hci_conn_drop(conn);
3464 set_bit(HCI_CONN_NEW_LINK_KEY, &conn->flags);
3465 conn_set_key(conn, ev->key_type, conn->pin_length);
3467 if (!hci_dev_test_flag(hdev, HCI_MGMT))
3470 key = hci_add_link_key(hdev, conn, &ev->bdaddr, ev->link_key,
3471 ev->key_type, pin_len, &persistent);
3475 /* Update connection information since adding the key will have
3476 * fixed up the type in the case of changed combination keys.
3478 if (ev->key_type == HCI_LK_CHANGED_COMBINATION)
3479 conn_set_key(conn, key->type, key->pin_len);
3481 mgmt_new_link_key(hdev, key, persistent);
3483 /* Keep debug keys around only if the HCI_KEEP_DEBUG_KEYS flag
3484 * is set. If it's not set simply remove the key from the kernel
3485 * list (we've still notified user space about it but with
3486 * store_hint being 0).
3488 if (key->type == HCI_LK_DEBUG_COMBINATION &&
3489 !hci_dev_test_flag(hdev, HCI_KEEP_DEBUG_KEYS)) {
3490 list_del_rcu(&key->list);
3491 kfree_rcu(key, rcu);
3496 clear_bit(HCI_CONN_FLUSH_KEY, &conn->flags);
3498 set_bit(HCI_CONN_FLUSH_KEY, &conn->flags);
3501 hci_dev_unlock(hdev);
3504 static void hci_clock_offset_evt(struct hci_dev *hdev, struct sk_buff *skb)
3506 struct hci_ev_clock_offset *ev = (void *) skb->data;
3507 struct hci_conn *conn;
3509 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
3513 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3514 if (conn && !ev->status) {
3515 struct inquiry_entry *ie;
3517 ie = hci_inquiry_cache_lookup(hdev, &conn->dst);
3519 ie->data.clock_offset = ev->clock_offset;
3520 ie->timestamp = jiffies;
3524 hci_dev_unlock(hdev);
3527 static void hci_pkt_type_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
3529 struct hci_ev_pkt_type_change *ev = (void *) skb->data;
3530 struct hci_conn *conn;
3532 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
3536 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3537 if (conn && !ev->status)
3538 conn->pkt_type = __le16_to_cpu(ev->pkt_type);
3540 hci_dev_unlock(hdev);
3543 static void hci_pscan_rep_mode_evt(struct hci_dev *hdev, struct sk_buff *skb)
3545 struct hci_ev_pscan_rep_mode *ev = (void *) skb->data;
3546 struct inquiry_entry *ie;
3548 BT_DBG("%s", hdev->name);
3552 ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
3554 ie->data.pscan_rep_mode = ev->pscan_rep_mode;
3555 ie->timestamp = jiffies;
3558 hci_dev_unlock(hdev);
3561 static void hci_inquiry_result_with_rssi_evt(struct hci_dev *hdev,
3562 struct sk_buff *skb)
3564 struct inquiry_data data;
3565 int num_rsp = *((__u8 *) skb->data);
3567 BT_DBG("%s num_rsp %d", hdev->name, num_rsp);
3572 if (hci_dev_test_flag(hdev, HCI_PERIODIC_INQ))
3577 if ((skb->len - 1) / num_rsp != sizeof(struct inquiry_info_with_rssi)) {
3578 struct inquiry_info_with_rssi_and_pscan_mode *info;
3579 info = (void *) (skb->data + 1);
3581 for (; num_rsp; num_rsp--, info++) {
3584 bacpy(&data.bdaddr, &info->bdaddr);
3585 data.pscan_rep_mode = info->pscan_rep_mode;
3586 data.pscan_period_mode = info->pscan_period_mode;
3587 data.pscan_mode = info->pscan_mode;
3588 memcpy(data.dev_class, info->dev_class, 3);
3589 data.clock_offset = info->clock_offset;
3590 data.rssi = info->rssi;
3591 data.ssp_mode = 0x00;
3593 flags = hci_inquiry_cache_update(hdev, &data, false);
3595 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
3596 info->dev_class, info->rssi,
3597 flags, NULL, 0, NULL, 0);
3600 struct inquiry_info_with_rssi *info = (void *) (skb->data + 1);
3602 for (; num_rsp; num_rsp--, info++) {
3605 bacpy(&data.bdaddr, &info->bdaddr);
3606 data.pscan_rep_mode = info->pscan_rep_mode;
3607 data.pscan_period_mode = info->pscan_period_mode;
3608 data.pscan_mode = 0x00;
3609 memcpy(data.dev_class, info->dev_class, 3);
3610 data.clock_offset = info->clock_offset;
3611 data.rssi = info->rssi;
3612 data.ssp_mode = 0x00;
3614 flags = hci_inquiry_cache_update(hdev, &data, false);
3616 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
3617 info->dev_class, info->rssi,
3618 flags, NULL, 0, NULL, 0);
3622 hci_dev_unlock(hdev);
3625 static void hci_remote_ext_features_evt(struct hci_dev *hdev,
3626 struct sk_buff *skb)
3628 struct hci_ev_remote_ext_features *ev = (void *) skb->data;
3629 struct hci_conn *conn;
3631 BT_DBG("%s", hdev->name);
3635 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3639 if (ev->page < HCI_MAX_PAGES)
3640 memcpy(conn->features[ev->page], ev->features, 8);
3642 if (!ev->status && ev->page == 0x01) {
3643 struct inquiry_entry *ie;
3645 ie = hci_inquiry_cache_lookup(hdev, &conn->dst);
3647 ie->data.ssp_mode = (ev->features[0] & LMP_HOST_SSP);
3649 if (ev->features[0] & LMP_HOST_SSP) {
3650 set_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
3652 /* It is mandatory by the Bluetooth specification that
3653 * Extended Inquiry Results are only used when Secure
3654 * Simple Pairing is enabled, but some devices violate
3657 * To make these devices work, the internal SSP
3658 * enabled flag needs to be cleared if the remote host
3659 * features do not indicate SSP support */
3660 clear_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
3663 if (ev->features[0] & LMP_HOST_SC)
3664 set_bit(HCI_CONN_SC_ENABLED, &conn->flags);
3667 if (conn->state != BT_CONFIG)
3670 if (!ev->status && !test_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags)) {
3671 struct hci_cp_remote_name_req cp;
3672 memset(&cp, 0, sizeof(cp));
3673 bacpy(&cp.bdaddr, &conn->dst);
3674 cp.pscan_rep_mode = 0x02;
3675 hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp);
3676 } else if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
3677 mgmt_device_connected(hdev, conn, 0, NULL, 0);
3679 if (!hci_outgoing_auth_needed(hdev, conn)) {
3680 conn->state = BT_CONNECTED;
3681 hci_connect_cfm(conn, ev->status);
3682 hci_conn_drop(conn);
3686 hci_dev_unlock(hdev);
3689 static void hci_sync_conn_complete_evt(struct hci_dev *hdev,
3690 struct sk_buff *skb)
3692 struct hci_ev_sync_conn_complete *ev = (void *) skb->data;
3693 struct hci_conn *conn;
3695 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
3699 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr);
3701 if (ev->link_type == ESCO_LINK)
3704 conn = hci_conn_hash_lookup_ba(hdev, ESCO_LINK, &ev->bdaddr);
3708 conn->type = SCO_LINK;
3711 switch (ev->status) {
3713 conn->handle = __le16_to_cpu(ev->handle);
3714 conn->state = BT_CONNECTED;
3716 hci_debugfs_create_conn(conn);
3717 hci_conn_add_sysfs(conn);
3720 case 0x10: /* Connection Accept Timeout */
3721 case 0x0d: /* Connection Rejected due to Limited Resources */
3722 case 0x11: /* Unsupported Feature or Parameter Value */
3723 case 0x1c: /* SCO interval rejected */
3724 case 0x1a: /* Unsupported Remote Feature */
3725 case 0x1f: /* Unspecified error */
3726 case 0x20: /* Unsupported LMP Parameter value */
3728 conn->pkt_type = (hdev->esco_type & SCO_ESCO_MASK) |
3729 (hdev->esco_type & EDR_ESCO_MASK);
3730 if (hci_setup_sync(conn, conn->link->handle))
3736 conn->state = BT_CLOSED;
3740 hci_connect_cfm(conn, ev->status);
3745 hci_dev_unlock(hdev);
3748 static inline size_t eir_get_length(u8 *eir, size_t eir_len)
3752 while (parsed < eir_len) {
3753 u8 field_len = eir[0];
3758 parsed += field_len + 1;
3759 eir += field_len + 1;
3765 static void hci_extended_inquiry_result_evt(struct hci_dev *hdev,
3766 struct sk_buff *skb)
3768 struct inquiry_data data;
3769 struct extended_inquiry_info *info = (void *) (skb->data + 1);
3770 int num_rsp = *((__u8 *) skb->data);
3773 BT_DBG("%s num_rsp %d", hdev->name, num_rsp);
3778 if (hci_dev_test_flag(hdev, HCI_PERIODIC_INQ))
3783 for (; num_rsp; num_rsp--, info++) {
3787 bacpy(&data.bdaddr, &info->bdaddr);
3788 data.pscan_rep_mode = info->pscan_rep_mode;
3789 data.pscan_period_mode = info->pscan_period_mode;
3790 data.pscan_mode = 0x00;
3791 memcpy(data.dev_class, info->dev_class, 3);
3792 data.clock_offset = info->clock_offset;
3793 data.rssi = info->rssi;
3794 data.ssp_mode = 0x01;
3796 if (hci_dev_test_flag(hdev, HCI_MGMT))
3797 name_known = eir_has_data_type(info->data,
3803 flags = hci_inquiry_cache_update(hdev, &data, name_known);
3805 eir_len = eir_get_length(info->data, sizeof(info->data));
3807 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
3808 info->dev_class, info->rssi,
3809 flags, info->data, eir_len, NULL, 0);
3812 hci_dev_unlock(hdev);
3815 static void hci_key_refresh_complete_evt(struct hci_dev *hdev,
3816 struct sk_buff *skb)
3818 struct hci_ev_key_refresh_complete *ev = (void *) skb->data;
3819 struct hci_conn *conn;
3821 BT_DBG("%s status 0x%2.2x handle 0x%4.4x", hdev->name, ev->status,
3822 __le16_to_cpu(ev->handle));
3826 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3830 /* For BR/EDR the necessary steps are taken through the
3831 * auth_complete event.
3833 if (conn->type != LE_LINK)
3837 conn->sec_level = conn->pending_sec_level;
3839 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
3841 if (ev->status && conn->state == BT_CONNECTED) {
3842 hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE);
3843 hci_conn_drop(conn);
3847 if (conn->state == BT_CONFIG) {
3849 conn->state = BT_CONNECTED;
3851 hci_connect_cfm(conn, ev->status);
3852 hci_conn_drop(conn);
3854 hci_auth_cfm(conn, ev->status);
3856 hci_conn_hold(conn);
3857 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
3858 hci_conn_drop(conn);
3862 hci_dev_unlock(hdev);
3865 static u8 hci_get_auth_req(struct hci_conn *conn)
3867 /* If remote requests no-bonding follow that lead */
3868 if (conn->remote_auth == HCI_AT_NO_BONDING ||
3869 conn->remote_auth == HCI_AT_NO_BONDING_MITM)
3870 return conn->remote_auth | (conn->auth_type & 0x01);
3872 /* If both remote and local have enough IO capabilities, require
3875 if (conn->remote_cap != HCI_IO_NO_INPUT_OUTPUT &&
3876 conn->io_capability != HCI_IO_NO_INPUT_OUTPUT)
3877 return conn->remote_auth | 0x01;
3879 /* No MITM protection possible so ignore remote requirement */
3880 return (conn->remote_auth & ~0x01) | (conn->auth_type & 0x01);
3883 static u8 bredr_oob_data_present(struct hci_conn *conn)
3885 struct hci_dev *hdev = conn->hdev;
3886 struct oob_data *data;
3888 data = hci_find_remote_oob_data(hdev, &conn->dst, BDADDR_BREDR);
3892 if (bredr_sc_enabled(hdev)) {
3893 /* When Secure Connections is enabled, then just
3894 * return the present value stored with the OOB
3895 * data. The stored value contains the right present
3896 * information. However it can only be trusted when
3897 * not in Secure Connection Only mode.
3899 if (!hci_dev_test_flag(hdev, HCI_SC_ONLY))
3900 return data->present;
3902 /* When Secure Connections Only mode is enabled, then
3903 * the P-256 values are required. If they are not
3904 * available, then do not declare that OOB data is
3907 if (!memcmp(data->rand256, ZERO_KEY, 16) ||
3908 !memcmp(data->hash256, ZERO_KEY, 16))
3914 /* When Secure Connections is not enabled or actually
3915 * not supported by the hardware, then check that if
3916 * P-192 data values are present.
3918 if (!memcmp(data->rand192, ZERO_KEY, 16) ||
3919 !memcmp(data->hash192, ZERO_KEY, 16))
3925 static void hci_io_capa_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
3927 struct hci_ev_io_capa_request *ev = (void *) skb->data;
3928 struct hci_conn *conn;
3930 BT_DBG("%s", hdev->name);
3934 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
3938 hci_conn_hold(conn);
3940 if (!hci_dev_test_flag(hdev, HCI_MGMT))
3943 /* Allow pairing if we're pairable, the initiators of the
3944 * pairing or if the remote is not requesting bonding.
3946 if (hci_dev_test_flag(hdev, HCI_BONDABLE) ||
3947 test_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags) ||
3948 (conn->remote_auth & ~0x01) == HCI_AT_NO_BONDING) {
3949 struct hci_cp_io_capability_reply cp;
3951 bacpy(&cp.bdaddr, &ev->bdaddr);
3952 /* Change the IO capability from KeyboardDisplay
3953 * to DisplayYesNo as it is not supported by BT spec. */
3954 cp.capability = (conn->io_capability == 0x04) ?
3955 HCI_IO_DISPLAY_YESNO : conn->io_capability;
3957 /* If we are initiators, there is no remote information yet */
3958 if (conn->remote_auth == 0xff) {
3959 /* Request MITM protection if our IO caps allow it
3960 * except for the no-bonding case.
3962 if (conn->io_capability != HCI_IO_NO_INPUT_OUTPUT &&
3963 conn->auth_type != HCI_AT_NO_BONDING)
3964 conn->auth_type |= 0x01;
3966 conn->auth_type = hci_get_auth_req(conn);
3969 /* If we're not bondable, force one of the non-bondable
3970 * authentication requirement values.
3972 if (!hci_dev_test_flag(hdev, HCI_BONDABLE))
3973 conn->auth_type &= HCI_AT_NO_BONDING_MITM;
3975 cp.authentication = conn->auth_type;
3976 cp.oob_data = bredr_oob_data_present(conn);
3978 hci_send_cmd(hdev, HCI_OP_IO_CAPABILITY_REPLY,
3981 struct hci_cp_io_capability_neg_reply cp;
3983 bacpy(&cp.bdaddr, &ev->bdaddr);
3984 cp.reason = HCI_ERROR_PAIRING_NOT_ALLOWED;
3986 hci_send_cmd(hdev, HCI_OP_IO_CAPABILITY_NEG_REPLY,
3991 hci_dev_unlock(hdev);
3994 static void hci_io_capa_reply_evt(struct hci_dev *hdev, struct sk_buff *skb)
3996 struct hci_ev_io_capa_reply *ev = (void *) skb->data;
3997 struct hci_conn *conn;
3999 BT_DBG("%s", hdev->name);
4003 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
4007 conn->remote_cap = ev->capability;
4008 conn->remote_auth = ev->authentication;
4011 hci_dev_unlock(hdev);
4014 static void hci_user_confirm_request_evt(struct hci_dev *hdev,
4015 struct sk_buff *skb)
4017 struct hci_ev_user_confirm_req *ev = (void *) skb->data;
4018 int loc_mitm, rem_mitm, confirm_hint = 0;
4019 struct hci_conn *conn;
4021 BT_DBG("%s", hdev->name);
4025 if (!hci_dev_test_flag(hdev, HCI_MGMT))
4028 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
4032 loc_mitm = (conn->auth_type & 0x01);
4033 rem_mitm = (conn->remote_auth & 0x01);
4035 /* If we require MITM but the remote device can't provide that
4036 * (it has NoInputNoOutput) then reject the confirmation
4037 * request. We check the security level here since it doesn't
4038 * necessarily match conn->auth_type.
4040 if (conn->pending_sec_level > BT_SECURITY_MEDIUM &&
4041 conn->remote_cap == HCI_IO_NO_INPUT_OUTPUT) {
4042 BT_DBG("Rejecting request: remote device can't provide MITM");
4043 hci_send_cmd(hdev, HCI_OP_USER_CONFIRM_NEG_REPLY,
4044 sizeof(ev->bdaddr), &ev->bdaddr);
4048 /* If no side requires MITM protection; auto-accept */
4049 if ((!loc_mitm || conn->remote_cap == HCI_IO_NO_INPUT_OUTPUT) &&
4050 (!rem_mitm || conn->io_capability == HCI_IO_NO_INPUT_OUTPUT)) {
4052 /* If we're not the initiators request authorization to
4053 * proceed from user space (mgmt_user_confirm with
4054 * confirm_hint set to 1). The exception is if neither
4055 * side had MITM or if the local IO capability is
4056 * NoInputNoOutput, in which case we do auto-accept
4058 if (!test_bit(HCI_CONN_AUTH_PEND, &conn->flags) &&
4059 conn->io_capability != HCI_IO_NO_INPUT_OUTPUT &&
4060 (loc_mitm || rem_mitm)) {
4061 BT_DBG("Confirming auto-accept as acceptor");
4066 BT_DBG("Auto-accept of user confirmation with %ums delay",
4067 hdev->auto_accept_delay);
4069 if (hdev->auto_accept_delay > 0) {
4070 int delay = msecs_to_jiffies(hdev->auto_accept_delay);
4071 queue_delayed_work(conn->hdev->workqueue,
4072 &conn->auto_accept_work, delay);
4076 hci_send_cmd(hdev, HCI_OP_USER_CONFIRM_REPLY,
4077 sizeof(ev->bdaddr), &ev->bdaddr);
4082 mgmt_user_confirm_request(hdev, &ev->bdaddr, ACL_LINK, 0,
4083 le32_to_cpu(ev->passkey), confirm_hint);
4086 hci_dev_unlock(hdev);
4089 static void hci_user_passkey_request_evt(struct hci_dev *hdev,
4090 struct sk_buff *skb)
4092 struct hci_ev_user_passkey_req *ev = (void *) skb->data;
4094 BT_DBG("%s", hdev->name);
4096 if (hci_dev_test_flag(hdev, HCI_MGMT))
4097 mgmt_user_passkey_request(hdev, &ev->bdaddr, ACL_LINK, 0);
4100 static void hci_user_passkey_notify_evt(struct hci_dev *hdev,
4101 struct sk_buff *skb)
4103 struct hci_ev_user_passkey_notify *ev = (void *) skb->data;
4104 struct hci_conn *conn;
4106 BT_DBG("%s", hdev->name);
4108 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
4112 conn->passkey_notify = __le32_to_cpu(ev->passkey);
4113 conn->passkey_entered = 0;
4115 if (hci_dev_test_flag(hdev, HCI_MGMT))
4116 mgmt_user_passkey_notify(hdev, &conn->dst, conn->type,
4117 conn->dst_type, conn->passkey_notify,
4118 conn->passkey_entered);
4121 static void hci_keypress_notify_evt(struct hci_dev *hdev, struct sk_buff *skb)
4123 struct hci_ev_keypress_notify *ev = (void *) skb->data;
4124 struct hci_conn *conn;
4126 BT_DBG("%s", hdev->name);
4128 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
4133 case HCI_KEYPRESS_STARTED:
4134 conn->passkey_entered = 0;
4137 case HCI_KEYPRESS_ENTERED:
4138 conn->passkey_entered++;
4141 case HCI_KEYPRESS_ERASED:
4142 conn->passkey_entered--;
4145 case HCI_KEYPRESS_CLEARED:
4146 conn->passkey_entered = 0;
4149 case HCI_KEYPRESS_COMPLETED:
4153 if (hci_dev_test_flag(hdev, HCI_MGMT))
4154 mgmt_user_passkey_notify(hdev, &conn->dst, conn->type,
4155 conn->dst_type, conn->passkey_notify,
4156 conn->passkey_entered);
4159 static void hci_simple_pair_complete_evt(struct hci_dev *hdev,
4160 struct sk_buff *skb)
4162 struct hci_ev_simple_pair_complete *ev = (void *) skb->data;
4163 struct hci_conn *conn;
4165 BT_DBG("%s", hdev->name);
4169 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
4173 /* Reset the authentication requirement to unknown */
4174 conn->remote_auth = 0xff;
4176 /* To avoid duplicate auth_failed events to user space we check
4177 * the HCI_CONN_AUTH_PEND flag which will be set if we
4178 * initiated the authentication. A traditional auth_complete
4179 * event gets always produced as initiator and is also mapped to
4180 * the mgmt_auth_failed event */
4181 if (!test_bit(HCI_CONN_AUTH_PEND, &conn->flags) && ev->status)
4182 mgmt_auth_failed(conn, ev->status);
4184 hci_conn_drop(conn);
4187 hci_dev_unlock(hdev);
4190 static void hci_remote_host_features_evt(struct hci_dev *hdev,
4191 struct sk_buff *skb)
4193 struct hci_ev_remote_host_features *ev = (void *) skb->data;
4194 struct inquiry_entry *ie;
4195 struct hci_conn *conn;
4197 BT_DBG("%s", hdev->name);
4201 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
4203 memcpy(conn->features[1], ev->features, 8);
4205 ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
4207 ie->data.ssp_mode = (ev->features[0] & LMP_HOST_SSP);
4209 hci_dev_unlock(hdev);
4212 static void hci_remote_oob_data_request_evt(struct hci_dev *hdev,
4213 struct sk_buff *skb)
4215 struct hci_ev_remote_oob_data_request *ev = (void *) skb->data;
4216 struct oob_data *data;
4218 BT_DBG("%s", hdev->name);
4222 if (!hci_dev_test_flag(hdev, HCI_MGMT))
4225 data = hci_find_remote_oob_data(hdev, &ev->bdaddr, BDADDR_BREDR);
4227 struct hci_cp_remote_oob_data_neg_reply cp;
4229 bacpy(&cp.bdaddr, &ev->bdaddr);
4230 hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_DATA_NEG_REPLY,
4235 if (bredr_sc_enabled(hdev)) {
4236 struct hci_cp_remote_oob_ext_data_reply cp;
4238 bacpy(&cp.bdaddr, &ev->bdaddr);
4239 if (hci_dev_test_flag(hdev, HCI_SC_ONLY)) {
4240 memset(cp.hash192, 0, sizeof(cp.hash192));
4241 memset(cp.rand192, 0, sizeof(cp.rand192));
4243 memcpy(cp.hash192, data->hash192, sizeof(cp.hash192));
4244 memcpy(cp.rand192, data->rand192, sizeof(cp.rand192));
4246 memcpy(cp.hash256, data->hash256, sizeof(cp.hash256));
4247 memcpy(cp.rand256, data->rand256, sizeof(cp.rand256));
4249 hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_EXT_DATA_REPLY,
4252 struct hci_cp_remote_oob_data_reply cp;
4254 bacpy(&cp.bdaddr, &ev->bdaddr);
4255 memcpy(cp.hash, data->hash192, sizeof(cp.hash));
4256 memcpy(cp.rand, data->rand192, sizeof(cp.rand));
4258 hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_DATA_REPLY,
4263 hci_dev_unlock(hdev);
4266 static void hci_phy_link_complete_evt(struct hci_dev *hdev,
4267 struct sk_buff *skb)
4269 struct hci_ev_phy_link_complete *ev = (void *) skb->data;
4270 struct hci_conn *hcon, *bredr_hcon;
4272 BT_DBG("%s handle 0x%2.2x status 0x%2.2x", hdev->name, ev->phy_handle,
4277 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
4279 hci_dev_unlock(hdev);
4285 hci_dev_unlock(hdev);
4289 bredr_hcon = hcon->amp_mgr->l2cap_conn->hcon;
4291 hcon->state = BT_CONNECTED;
4292 bacpy(&hcon->dst, &bredr_hcon->dst);
4294 hci_conn_hold(hcon);
4295 hcon->disc_timeout = HCI_DISCONN_TIMEOUT;
4296 hci_conn_drop(hcon);
4298 hci_debugfs_create_conn(hcon);
4299 hci_conn_add_sysfs(hcon);
4301 amp_physical_cfm(bredr_hcon, hcon);
4303 hci_dev_unlock(hdev);
4306 static void hci_loglink_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
4308 struct hci_ev_logical_link_complete *ev = (void *) skb->data;
4309 struct hci_conn *hcon;
4310 struct hci_chan *hchan;
4311 struct amp_mgr *mgr;
4313 BT_DBG("%s log_handle 0x%4.4x phy_handle 0x%2.2x status 0x%2.2x",
4314 hdev->name, le16_to_cpu(ev->handle), ev->phy_handle,
4317 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
4321 /* Create AMP hchan */
4322 hchan = hci_chan_create(hcon);
4326 hchan->handle = le16_to_cpu(ev->handle);
4328 BT_DBG("hcon %p mgr %p hchan %p", hcon, hcon->amp_mgr, hchan);
4330 mgr = hcon->amp_mgr;
4331 if (mgr && mgr->bredr_chan) {
4332 struct l2cap_chan *bredr_chan = mgr->bredr_chan;
4334 l2cap_chan_lock(bredr_chan);
4336 bredr_chan->conn->mtu = hdev->block_mtu;
4337 l2cap_logical_cfm(bredr_chan, hchan, 0);
4338 hci_conn_hold(hcon);
4340 l2cap_chan_unlock(bredr_chan);
4344 static void hci_disconn_loglink_complete_evt(struct hci_dev *hdev,
4345 struct sk_buff *skb)
4347 struct hci_ev_disconn_logical_link_complete *ev = (void *) skb->data;
4348 struct hci_chan *hchan;
4350 BT_DBG("%s log handle 0x%4.4x status 0x%2.2x", hdev->name,
4351 le16_to_cpu(ev->handle), ev->status);
4358 hchan = hci_chan_lookup_handle(hdev, le16_to_cpu(ev->handle));
4362 amp_destroy_logical_link(hchan, ev->reason);
4365 hci_dev_unlock(hdev);
4368 static void hci_disconn_phylink_complete_evt(struct hci_dev *hdev,
4369 struct sk_buff *skb)
4371 struct hci_ev_disconn_phy_link_complete *ev = (void *) skb->data;
4372 struct hci_conn *hcon;
4374 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
4381 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
4383 hcon->state = BT_CLOSED;
4387 hci_dev_unlock(hdev);
4390 static void hci_le_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
4392 struct hci_ev_le_conn_complete *ev = (void *) skb->data;
4393 struct hci_conn_params *params;
4394 struct hci_conn *conn;
4395 struct smp_irk *irk;
4398 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
4402 /* All controllers implicitly stop advertising in the event of a
4403 * connection, so ensure that the state bit is cleared.
4405 hci_dev_clear_flag(hdev, HCI_LE_ADV);
4407 conn = hci_conn_hash_lookup_state(hdev, LE_LINK, BT_CONNECT);
4409 conn = hci_conn_add(hdev, LE_LINK, &ev->bdaddr, ev->role);
4411 BT_ERR("No memory for new connection");
4415 conn->dst_type = ev->bdaddr_type;
4417 /* If we didn't have a hci_conn object previously
4418 * but we're in master role this must be something
4419 * initiated using a white list. Since white list based
4420 * connections are not "first class citizens" we don't
4421 * have full tracking of them. Therefore, we go ahead
4422 * with a "best effort" approach of determining the
4423 * initiator address based on the HCI_PRIVACY flag.
4426 conn->resp_addr_type = ev->bdaddr_type;
4427 bacpy(&conn->resp_addr, &ev->bdaddr);
4428 if (hci_dev_test_flag(hdev, HCI_PRIVACY)) {
4429 conn->init_addr_type = ADDR_LE_DEV_RANDOM;
4430 bacpy(&conn->init_addr, &hdev->rpa);
4432 hci_copy_identity_address(hdev,
4434 &conn->init_addr_type);
4438 cancel_delayed_work(&conn->le_conn_timeout);
4442 /* Set the responder (our side) address type based on
4443 * the advertising address type.
4445 conn->resp_addr_type = hdev->adv_addr_type;
4446 if (hdev->adv_addr_type == ADDR_LE_DEV_RANDOM)
4447 bacpy(&conn->resp_addr, &hdev->random_addr);
4449 bacpy(&conn->resp_addr, &hdev->bdaddr);
4451 conn->init_addr_type = ev->bdaddr_type;
4452 bacpy(&conn->init_addr, &ev->bdaddr);
4454 /* For incoming connections, set the default minimum
4455 * and maximum connection interval. They will be used
4456 * to check if the parameters are in range and if not
4457 * trigger the connection update procedure.
4459 conn->le_conn_min_interval = hdev->le_conn_min_interval;
4460 conn->le_conn_max_interval = hdev->le_conn_max_interval;
4463 /* Lookup the identity address from the stored connection
4464 * address and address type.
4466 * When establishing connections to an identity address, the
4467 * connection procedure will store the resolvable random
4468 * address first. Now if it can be converted back into the
4469 * identity address, start using the identity address from
4472 irk = hci_get_irk(hdev, &conn->dst, conn->dst_type);
4474 bacpy(&conn->dst, &irk->bdaddr);
4475 conn->dst_type = irk->addr_type;
4479 hci_le_conn_failed(conn, ev->status);
4483 if (conn->dst_type == ADDR_LE_DEV_PUBLIC)
4484 addr_type = BDADDR_LE_PUBLIC;
4486 addr_type = BDADDR_LE_RANDOM;
4488 /* Drop the connection if the device is blocked */
4489 if (hci_bdaddr_list_lookup(&hdev->blacklist, &conn->dst, addr_type)) {
4490 hci_conn_drop(conn);
4494 if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
4495 mgmt_device_connected(hdev, conn, 0, NULL, 0);
4497 conn->sec_level = BT_SECURITY_LOW;
4498 conn->handle = __le16_to_cpu(ev->handle);
4499 conn->state = BT_CONNECTED;
4501 conn->le_conn_interval = le16_to_cpu(ev->interval);
4502 conn->le_conn_latency = le16_to_cpu(ev->latency);
4503 conn->le_supv_timeout = le16_to_cpu(ev->supervision_timeout);
4505 hci_debugfs_create_conn(conn);
4506 hci_conn_add_sysfs(conn);
4508 hci_connect_cfm(conn, ev->status);
4510 params = hci_pend_le_action_lookup(&hdev->pend_le_conns, &conn->dst,
4513 list_del_init(¶ms->action);
4515 hci_conn_drop(params->conn);
4516 hci_conn_put(params->conn);
4517 params->conn = NULL;
4522 hci_update_background_scan(hdev);
4523 hci_dev_unlock(hdev);
4526 static void hci_le_conn_update_complete_evt(struct hci_dev *hdev,
4527 struct sk_buff *skb)
4529 struct hci_ev_le_conn_update_complete *ev = (void *) skb->data;
4530 struct hci_conn *conn;
4532 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
4539 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
4541 conn->le_conn_interval = le16_to_cpu(ev->interval);
4542 conn->le_conn_latency = le16_to_cpu(ev->latency);
4543 conn->le_supv_timeout = le16_to_cpu(ev->supervision_timeout);
4546 hci_dev_unlock(hdev);
4549 /* This function requires the caller holds hdev->lock */
4550 static struct hci_conn *check_pending_le_conn(struct hci_dev *hdev,
4552 u8 addr_type, u8 adv_type)
4554 struct hci_conn *conn;
4555 struct hci_conn_params *params;
4557 /* If the event is not connectable don't proceed further */
4558 if (adv_type != LE_ADV_IND && adv_type != LE_ADV_DIRECT_IND)
4561 /* Ignore if the device is blocked */
4562 if (hci_bdaddr_list_lookup(&hdev->blacklist, addr, addr_type))
4565 /* Most controller will fail if we try to create new connections
4566 * while we have an existing one in slave role.
4568 if (hdev->conn_hash.le_num_slave > 0)
4571 /* If we're not connectable only connect devices that we have in
4572 * our pend_le_conns list.
4574 params = hci_pend_le_action_lookup(&hdev->pend_le_conns,
4579 switch (params->auto_connect) {
4580 case HCI_AUTO_CONN_DIRECT:
4581 /* Only devices advertising with ADV_DIRECT_IND are
4582 * triggering a connection attempt. This is allowing
4583 * incoming connections from slave devices.
4585 if (adv_type != LE_ADV_DIRECT_IND)
4588 case HCI_AUTO_CONN_ALWAYS:
4589 /* Devices advertising with ADV_IND or ADV_DIRECT_IND
4590 * are triggering a connection attempt. This means
4591 * that incoming connectioms from slave device are
4592 * accepted and also outgoing connections to slave
4593 * devices are established when found.
4600 conn = hci_connect_le(hdev, addr, addr_type, BT_SECURITY_LOW,
4601 HCI_LE_AUTOCONN_TIMEOUT, HCI_ROLE_MASTER);
4602 if (!IS_ERR(conn)) {
4603 /* Store the pointer since we don't really have any
4604 * other owner of the object besides the params that
4605 * triggered it. This way we can abort the connection if
4606 * the parameters get removed and keep the reference
4607 * count consistent once the connection is established.
4609 params->conn = hci_conn_get(conn);
4613 switch (PTR_ERR(conn)) {
4615 /* If hci_connect() returns -EBUSY it means there is already
4616 * an LE connection attempt going on. Since controllers don't
4617 * support more than one connection attempt at the time, we
4618 * don't consider this an error case.
4622 BT_DBG("Failed to connect: err %ld", PTR_ERR(conn));
4629 static void process_adv_report(struct hci_dev *hdev, u8 type, bdaddr_t *bdaddr,
4630 u8 bdaddr_type, bdaddr_t *direct_addr,
4631 u8 direct_addr_type, s8 rssi, u8 *data, u8 len)
4633 struct discovery_state *d = &hdev->discovery;
4634 struct smp_irk *irk;
4635 struct hci_conn *conn;
4639 /* If the direct address is present, then this report is from
4640 * a LE Direct Advertising Report event. In that case it is
4641 * important to see if the address is matching the local
4642 * controller address.
4645 /* Only resolvable random addresses are valid for these
4646 * kind of reports and others can be ignored.
4648 if (!hci_bdaddr_is_rpa(direct_addr, direct_addr_type))
4651 /* If the controller is not using resolvable random
4652 * addresses, then this report can be ignored.
4654 if (!hci_dev_test_flag(hdev, HCI_PRIVACY))
4657 /* If the local IRK of the controller does not match
4658 * with the resolvable random address provided, then
4659 * this report can be ignored.
4661 if (!smp_irk_matches(hdev, hdev->irk, direct_addr))
4665 /* Check if we need to convert to identity address */
4666 irk = hci_get_irk(hdev, bdaddr, bdaddr_type);
4668 bdaddr = &irk->bdaddr;
4669 bdaddr_type = irk->addr_type;
4672 /* Check if we have been requested to connect to this device */
4673 conn = check_pending_le_conn(hdev, bdaddr, bdaddr_type, type);
4674 if (conn && type == LE_ADV_IND) {
4675 /* Store report for later inclusion by
4676 * mgmt_device_connected
4678 memcpy(conn->le_adv_data, data, len);
4679 conn->le_adv_data_len = len;
4682 /* Passive scanning shouldn't trigger any device found events,
4683 * except for devices marked as CONN_REPORT for which we do send
4684 * device found events.
4686 if (hdev->le_scan_type == LE_SCAN_PASSIVE) {
4687 if (type == LE_ADV_DIRECT_IND)
4690 if (!hci_pend_le_action_lookup(&hdev->pend_le_reports,
4691 bdaddr, bdaddr_type))
4694 if (type == LE_ADV_NONCONN_IND || type == LE_ADV_SCAN_IND)
4695 flags = MGMT_DEV_FOUND_NOT_CONNECTABLE;
4698 mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL,
4699 rssi, flags, data, len, NULL, 0);
4703 /* When receiving non-connectable or scannable undirected
4704 * advertising reports, this means that the remote device is
4705 * not connectable and then clearly indicate this in the
4706 * device found event.
4708 * When receiving a scan response, then there is no way to
4709 * know if the remote device is connectable or not. However
4710 * since scan responses are merged with a previously seen
4711 * advertising report, the flags field from that report
4714 * In the really unlikely case that a controller get confused
4715 * and just sends a scan response event, then it is marked as
4716 * not connectable as well.
4718 if (type == LE_ADV_NONCONN_IND || type == LE_ADV_SCAN_IND ||
4719 type == LE_ADV_SCAN_RSP)
4720 flags = MGMT_DEV_FOUND_NOT_CONNECTABLE;
4724 /* If there's nothing pending either store the data from this
4725 * event or send an immediate device found event if the data
4726 * should not be stored for later.
4728 if (!has_pending_adv_report(hdev)) {
4729 /* If the report will trigger a SCAN_REQ store it for
4732 if (type == LE_ADV_IND || type == LE_ADV_SCAN_IND) {
4733 store_pending_adv_report(hdev, bdaddr, bdaddr_type,
4734 rssi, flags, data, len);
4738 mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL,
4739 rssi, flags, data, len, NULL, 0);
4743 /* Check if the pending report is for the same device as the new one */
4744 match = (!bacmp(bdaddr, &d->last_adv_addr) &&
4745 bdaddr_type == d->last_adv_addr_type);
4747 /* If the pending data doesn't match this report or this isn't a
4748 * scan response (e.g. we got a duplicate ADV_IND) then force
4749 * sending of the pending data.
4751 if (type != LE_ADV_SCAN_RSP || !match) {
4752 /* Send out whatever is in the cache, but skip duplicates */
4754 mgmt_device_found(hdev, &d->last_adv_addr, LE_LINK,
4755 d->last_adv_addr_type, NULL,
4756 d->last_adv_rssi, d->last_adv_flags,
4758 d->last_adv_data_len, NULL, 0);
4760 /* If the new report will trigger a SCAN_REQ store it for
4763 if (type == LE_ADV_IND || type == LE_ADV_SCAN_IND) {
4764 store_pending_adv_report(hdev, bdaddr, bdaddr_type,
4765 rssi, flags, data, len);
4769 /* The advertising reports cannot be merged, so clear
4770 * the pending report and send out a device found event.
4772 clear_pending_adv_report(hdev);
4773 mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL,
4774 rssi, flags, data, len, NULL, 0);
4778 /* If we get here we've got a pending ADV_IND or ADV_SCAN_IND and
4779 * the new event is a SCAN_RSP. We can therefore proceed with
4780 * sending a merged device found event.
4782 mgmt_device_found(hdev, &d->last_adv_addr, LE_LINK,
4783 d->last_adv_addr_type, NULL, rssi, d->last_adv_flags,
4784 d->last_adv_data, d->last_adv_data_len, data, len);
4785 clear_pending_adv_report(hdev);
4788 static void hci_le_adv_report_evt(struct hci_dev *hdev, struct sk_buff *skb)
4790 u8 num_reports = skb->data[0];
4791 void *ptr = &skb->data[1];
4795 while (num_reports--) {
4796 struct hci_ev_le_advertising_info *ev = ptr;
4799 rssi = ev->data[ev->length];
4800 process_adv_report(hdev, ev->evt_type, &ev->bdaddr,
4801 ev->bdaddr_type, NULL, 0, rssi,
4802 ev->data, ev->length);
4804 ptr += sizeof(*ev) + ev->length + 1;
4807 hci_dev_unlock(hdev);
4810 static void hci_le_ltk_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
4812 struct hci_ev_le_ltk_req *ev = (void *) skb->data;
4813 struct hci_cp_le_ltk_reply cp;
4814 struct hci_cp_le_ltk_neg_reply neg;
4815 struct hci_conn *conn;
4816 struct smp_ltk *ltk;
4818 BT_DBG("%s handle 0x%4.4x", hdev->name, __le16_to_cpu(ev->handle));
4822 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
4826 ltk = hci_find_ltk(hdev, &conn->dst, conn->dst_type, conn->role);
4830 if (smp_ltk_is_sc(ltk)) {
4831 /* With SC both EDiv and Rand are set to zero */
4832 if (ev->ediv || ev->rand)
4835 /* For non-SC keys check that EDiv and Rand match */
4836 if (ev->ediv != ltk->ediv || ev->rand != ltk->rand)
4840 memcpy(cp.ltk, ltk->val, sizeof(ltk->val));
4841 cp.handle = cpu_to_le16(conn->handle);
4843 conn->pending_sec_level = smp_ltk_sec_level(ltk);
4845 conn->enc_key_size = ltk->enc_size;
4847 hci_send_cmd(hdev, HCI_OP_LE_LTK_REPLY, sizeof(cp), &cp);
4849 /* Ref. Bluetooth Core SPEC pages 1975 and 2004. STK is a
4850 * temporary key used to encrypt a connection following
4851 * pairing. It is used during the Encrypted Session Setup to
4852 * distribute the keys. Later, security can be re-established
4853 * using a distributed LTK.
4855 if (ltk->type == SMP_STK) {
4856 set_bit(HCI_CONN_STK_ENCRYPT, &conn->flags);
4857 list_del_rcu(<k->list);
4858 kfree_rcu(ltk, rcu);
4860 clear_bit(HCI_CONN_STK_ENCRYPT, &conn->flags);
4863 hci_dev_unlock(hdev);
4868 neg.handle = ev->handle;
4869 hci_send_cmd(hdev, HCI_OP_LE_LTK_NEG_REPLY, sizeof(neg), &neg);
4870 hci_dev_unlock(hdev);
4873 static void send_conn_param_neg_reply(struct hci_dev *hdev, u16 handle,
4876 struct hci_cp_le_conn_param_req_neg_reply cp;
4878 cp.handle = cpu_to_le16(handle);
4881 hci_send_cmd(hdev, HCI_OP_LE_CONN_PARAM_REQ_NEG_REPLY, sizeof(cp),
4885 static void hci_le_remote_conn_param_req_evt(struct hci_dev *hdev,
4886 struct sk_buff *skb)
4888 struct hci_ev_le_remote_conn_param_req *ev = (void *) skb->data;
4889 struct hci_cp_le_conn_param_req_reply cp;
4890 struct hci_conn *hcon;
4891 u16 handle, min, max, latency, timeout;
4893 handle = le16_to_cpu(ev->handle);
4894 min = le16_to_cpu(ev->interval_min);
4895 max = le16_to_cpu(ev->interval_max);
4896 latency = le16_to_cpu(ev->latency);
4897 timeout = le16_to_cpu(ev->timeout);
4899 hcon = hci_conn_hash_lookup_handle(hdev, handle);
4900 if (!hcon || hcon->state != BT_CONNECTED)
4901 return send_conn_param_neg_reply(hdev, handle,
4902 HCI_ERROR_UNKNOWN_CONN_ID);
4904 if (hci_check_conn_params(min, max, latency, timeout))
4905 return send_conn_param_neg_reply(hdev, handle,
4906 HCI_ERROR_INVALID_LL_PARAMS);
4908 if (hcon->role == HCI_ROLE_MASTER) {
4909 struct hci_conn_params *params;
4914 params = hci_conn_params_lookup(hdev, &hcon->dst,
4917 params->conn_min_interval = min;
4918 params->conn_max_interval = max;
4919 params->conn_latency = latency;
4920 params->supervision_timeout = timeout;
4926 hci_dev_unlock(hdev);
4928 mgmt_new_conn_param(hdev, &hcon->dst, hcon->dst_type,
4929 store_hint, min, max, latency, timeout);
4932 cp.handle = ev->handle;
4933 cp.interval_min = ev->interval_min;
4934 cp.interval_max = ev->interval_max;
4935 cp.latency = ev->latency;
4936 cp.timeout = ev->timeout;
4940 hci_send_cmd(hdev, HCI_OP_LE_CONN_PARAM_REQ_REPLY, sizeof(cp), &cp);
4943 static void hci_le_direct_adv_report_evt(struct hci_dev *hdev,
4944 struct sk_buff *skb)
4946 u8 num_reports = skb->data[0];
4947 void *ptr = &skb->data[1];
4951 while (num_reports--) {
4952 struct hci_ev_le_direct_adv_info *ev = ptr;
4954 process_adv_report(hdev, ev->evt_type, &ev->bdaddr,
4955 ev->bdaddr_type, &ev->direct_addr,
4956 ev->direct_addr_type, ev->rssi, NULL, 0);
4961 hci_dev_unlock(hdev);
4964 static void hci_le_meta_evt(struct hci_dev *hdev, struct sk_buff *skb)
4966 struct hci_ev_le_meta *le_ev = (void *) skb->data;
4968 skb_pull(skb, sizeof(*le_ev));
4970 switch (le_ev->subevent) {
4971 case HCI_EV_LE_CONN_COMPLETE:
4972 hci_le_conn_complete_evt(hdev, skb);
4975 case HCI_EV_LE_CONN_UPDATE_COMPLETE:
4976 hci_le_conn_update_complete_evt(hdev, skb);
4979 case HCI_EV_LE_ADVERTISING_REPORT:
4980 hci_le_adv_report_evt(hdev, skb);
4983 case HCI_EV_LE_LTK_REQ:
4984 hci_le_ltk_request_evt(hdev, skb);
4987 case HCI_EV_LE_REMOTE_CONN_PARAM_REQ:
4988 hci_le_remote_conn_param_req_evt(hdev, skb);
4991 case HCI_EV_LE_DIRECT_ADV_REPORT:
4992 hci_le_direct_adv_report_evt(hdev, skb);
5000 static void hci_chan_selected_evt(struct hci_dev *hdev, struct sk_buff *skb)
5002 struct hci_ev_channel_selected *ev = (void *) skb->data;
5003 struct hci_conn *hcon;
5005 BT_DBG("%s handle 0x%2.2x", hdev->name, ev->phy_handle);
5007 skb_pull(skb, sizeof(*ev));
5009 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
5013 amp_read_loc_assoc_final_data(hdev, hcon);
5016 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb)
5018 struct hci_event_hdr *hdr = (void *) skb->data;
5019 __u8 event = hdr->evt;
5023 /* Received events are (currently) only needed when a request is
5024 * ongoing so avoid unnecessary memory allocation.
5026 if (hci_req_pending(hdev)) {
5027 kfree_skb(hdev->recv_evt);
5028 hdev->recv_evt = skb_clone(skb, GFP_KERNEL);
5031 hci_dev_unlock(hdev);
5033 skb_pull(skb, HCI_EVENT_HDR_SIZE);
5035 if (hdev->sent_cmd && bt_cb(hdev->sent_cmd)->req_event == event) {
5036 struct hci_command_hdr *cmd_hdr = (void *) hdev->sent_cmd->data;
5037 u16 opcode = __le16_to_cpu(cmd_hdr->opcode);
5039 hci_req_cmd_complete(hdev, opcode, 0);
5043 case HCI_EV_INQUIRY_COMPLETE:
5044 hci_inquiry_complete_evt(hdev, skb);
5047 case HCI_EV_INQUIRY_RESULT:
5048 hci_inquiry_result_evt(hdev, skb);
5051 case HCI_EV_CONN_COMPLETE:
5052 hci_conn_complete_evt(hdev, skb);
5055 case HCI_EV_CONN_REQUEST:
5056 hci_conn_request_evt(hdev, skb);
5059 case HCI_EV_DISCONN_COMPLETE:
5060 hci_disconn_complete_evt(hdev, skb);
5063 case HCI_EV_AUTH_COMPLETE:
5064 hci_auth_complete_evt(hdev, skb);
5067 case HCI_EV_REMOTE_NAME:
5068 hci_remote_name_evt(hdev, skb);
5071 case HCI_EV_ENCRYPT_CHANGE:
5072 hci_encrypt_change_evt(hdev, skb);
5075 case HCI_EV_CHANGE_LINK_KEY_COMPLETE:
5076 hci_change_link_key_complete_evt(hdev, skb);
5079 case HCI_EV_REMOTE_FEATURES:
5080 hci_remote_features_evt(hdev, skb);
5083 case HCI_EV_CMD_COMPLETE:
5084 hci_cmd_complete_evt(hdev, skb);
5087 case HCI_EV_CMD_STATUS:
5088 hci_cmd_status_evt(hdev, skb);
5091 case HCI_EV_HARDWARE_ERROR:
5092 hci_hardware_error_evt(hdev, skb);
5095 case HCI_EV_ROLE_CHANGE:
5096 hci_role_change_evt(hdev, skb);
5099 case HCI_EV_NUM_COMP_PKTS:
5100 hci_num_comp_pkts_evt(hdev, skb);
5103 case HCI_EV_MODE_CHANGE:
5104 hci_mode_change_evt(hdev, skb);
5107 case HCI_EV_PIN_CODE_REQ:
5108 hci_pin_code_request_evt(hdev, skb);
5111 case HCI_EV_LINK_KEY_REQ:
5112 hci_link_key_request_evt(hdev, skb);
5115 case HCI_EV_LINK_KEY_NOTIFY:
5116 hci_link_key_notify_evt(hdev, skb);
5119 case HCI_EV_CLOCK_OFFSET:
5120 hci_clock_offset_evt(hdev, skb);
5123 case HCI_EV_PKT_TYPE_CHANGE:
5124 hci_pkt_type_change_evt(hdev, skb);
5127 case HCI_EV_PSCAN_REP_MODE:
5128 hci_pscan_rep_mode_evt(hdev, skb);
5131 case HCI_EV_INQUIRY_RESULT_WITH_RSSI:
5132 hci_inquiry_result_with_rssi_evt(hdev, skb);
5135 case HCI_EV_REMOTE_EXT_FEATURES:
5136 hci_remote_ext_features_evt(hdev, skb);
5139 case HCI_EV_SYNC_CONN_COMPLETE:
5140 hci_sync_conn_complete_evt(hdev, skb);
5143 case HCI_EV_EXTENDED_INQUIRY_RESULT:
5144 hci_extended_inquiry_result_evt(hdev, skb);
5147 case HCI_EV_KEY_REFRESH_COMPLETE:
5148 hci_key_refresh_complete_evt(hdev, skb);
5151 case HCI_EV_IO_CAPA_REQUEST:
5152 hci_io_capa_request_evt(hdev, skb);
5155 case HCI_EV_IO_CAPA_REPLY:
5156 hci_io_capa_reply_evt(hdev, skb);
5159 case HCI_EV_USER_CONFIRM_REQUEST:
5160 hci_user_confirm_request_evt(hdev, skb);
5163 case HCI_EV_USER_PASSKEY_REQUEST:
5164 hci_user_passkey_request_evt(hdev, skb);
5167 case HCI_EV_USER_PASSKEY_NOTIFY:
5168 hci_user_passkey_notify_evt(hdev, skb);
5171 case HCI_EV_KEYPRESS_NOTIFY:
5172 hci_keypress_notify_evt(hdev, skb);
5175 case HCI_EV_SIMPLE_PAIR_COMPLETE:
5176 hci_simple_pair_complete_evt(hdev, skb);
5179 case HCI_EV_REMOTE_HOST_FEATURES:
5180 hci_remote_host_features_evt(hdev, skb);
5183 case HCI_EV_LE_META:
5184 hci_le_meta_evt(hdev, skb);
5187 case HCI_EV_CHANNEL_SELECTED:
5188 hci_chan_selected_evt(hdev, skb);
5191 case HCI_EV_REMOTE_OOB_DATA_REQUEST:
5192 hci_remote_oob_data_request_evt(hdev, skb);
5195 case HCI_EV_PHY_LINK_COMPLETE:
5196 hci_phy_link_complete_evt(hdev, skb);
5199 case HCI_EV_LOGICAL_LINK_COMPLETE:
5200 hci_loglink_complete_evt(hdev, skb);
5203 case HCI_EV_DISCONN_LOGICAL_LINK_COMPLETE:
5204 hci_disconn_loglink_complete_evt(hdev, skb);
5207 case HCI_EV_DISCONN_PHY_LINK_COMPLETE:
5208 hci_disconn_phylink_complete_evt(hdev, skb);
5211 case HCI_EV_NUM_COMP_BLOCKS:
5212 hci_num_comp_blocks_evt(hdev, skb);
5216 BT_DBG("%s event 0x%2.2x", hdev->name, event);
5221 hdev->stat.evt_rx++;