2 BlueZ - Bluetooth protocol stack for Linux
3 Copyright (c) 2000-2001, 2010, Code Aurora Forum. All rights reserved.
6 Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License version 2 as
10 published by the Free Software Foundation;
12 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
13 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
14 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
15 IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
16 CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
17 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
18 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
19 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
21 ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
22 COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
23 SOFTWARE IS DISCLAIMED.
26 /* Bluetooth HCI event handling. */
28 #include <asm/unaligned.h>
30 #include <net/bluetooth/bluetooth.h>
31 #include <net/bluetooth/hci_core.h>
32 #include <net/bluetooth/mgmt.h>
34 #include "hci_request.h"
35 #include "hci_debugfs.h"
42 #define ZERO_KEY "\x00\x00\x00\x00\x00\x00\x00\x00" \
43 "\x00\x00\x00\x00\x00\x00\x00\x00"
45 #define secs_to_jiffies(_secs) msecs_to_jiffies((_secs) * 1000)
47 /* Handle HCI Event packets */
49 static void *hci_ev_skb_pull(struct hci_dev *hdev, struct sk_buff *skb,
54 data = skb_pull_data(skb, len);
56 bt_dev_err(hdev, "Malformed Event: 0x%2.2x", ev);
61 static void *hci_cc_skb_pull(struct hci_dev *hdev, struct sk_buff *skb,
66 data = skb_pull_data(skb, len);
68 bt_dev_err(hdev, "Malformed Command Complete: 0x%4.4x", op);
73 static void *hci_le_ev_skb_pull(struct hci_dev *hdev, struct sk_buff *skb,
78 data = skb_pull_data(skb, len);
80 bt_dev_err(hdev, "Malformed LE Event: 0x%2.2x", ev);
85 static u8 hci_cc_inquiry_cancel(struct hci_dev *hdev, void *data,
88 struct hci_ev_status *rp = data;
90 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
92 /* It is possible that we receive Inquiry Complete event right
93 * before we receive Inquiry Cancel Command Complete event, in
94 * which case the latter event should have status of Command
95 * Disallowed (0x0c). This should not be treated as error, since
96 * we actually achieve what Inquiry Cancel wants to achieve,
97 * which is to end the last Inquiry session.
99 if (rp->status == 0x0c && !test_bit(HCI_INQUIRY, &hdev->flags)) {
100 bt_dev_warn(hdev, "Ignoring error of Inquiry Cancel command");
107 clear_bit(HCI_INQUIRY, &hdev->flags);
108 smp_mb__after_atomic(); /* wake_up_bit advises about this barrier */
109 wake_up_bit(&hdev->flags, HCI_INQUIRY);
112 /* Set discovery state to stopped if we're not doing LE active
115 if (!hci_dev_test_flag(hdev, HCI_LE_SCAN) ||
116 hdev->le_scan_type != LE_SCAN_ACTIVE)
117 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
118 hci_dev_unlock(hdev);
120 hci_conn_check_pending(hdev);
125 static u8 hci_cc_periodic_inq(struct hci_dev *hdev, void *data,
128 struct hci_ev_status *rp = data;
130 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
135 hci_dev_set_flag(hdev, HCI_PERIODIC_INQ);
140 static u8 hci_cc_exit_periodic_inq(struct hci_dev *hdev, void *data,
143 struct hci_ev_status *rp = data;
145 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
150 hci_dev_clear_flag(hdev, HCI_PERIODIC_INQ);
152 hci_conn_check_pending(hdev);
157 static u8 hci_cc_remote_name_req_cancel(struct hci_dev *hdev, void *data,
160 struct hci_ev_status *rp = data;
162 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
167 static u8 hci_cc_role_discovery(struct hci_dev *hdev, void *data,
170 struct hci_rp_role_discovery *rp = data;
171 struct hci_conn *conn;
173 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
180 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
182 conn->role = rp->role;
184 hci_dev_unlock(hdev);
189 static u8 hci_cc_read_link_policy(struct hci_dev *hdev, void *data,
192 struct hci_rp_read_link_policy *rp = data;
193 struct hci_conn *conn;
195 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
202 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
204 conn->link_policy = __le16_to_cpu(rp->policy);
206 hci_dev_unlock(hdev);
211 static u8 hci_cc_write_link_policy(struct hci_dev *hdev, void *data,
214 struct hci_rp_write_link_policy *rp = data;
215 struct hci_conn *conn;
218 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
223 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LINK_POLICY);
229 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
231 conn->link_policy = get_unaligned_le16(sent + 2);
233 hci_dev_unlock(hdev);
238 static u8 hci_cc_read_def_link_policy(struct hci_dev *hdev, void *data,
241 struct hci_rp_read_def_link_policy *rp = data;
243 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
248 hdev->link_policy = __le16_to_cpu(rp->policy);
253 static u8 hci_cc_write_def_link_policy(struct hci_dev *hdev, void *data,
256 struct hci_ev_status *rp = data;
259 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
264 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_DEF_LINK_POLICY);
268 hdev->link_policy = get_unaligned_le16(sent);
273 static u8 hci_cc_reset(struct hci_dev *hdev, void *data, struct sk_buff *skb)
275 struct hci_ev_status *rp = data;
277 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
279 clear_bit(HCI_RESET, &hdev->flags);
284 /* Reset all non-persistent flags */
285 hci_dev_clear_volatile_flags(hdev);
287 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
289 hdev->inq_tx_power = HCI_TX_POWER_INVALID;
290 hdev->adv_tx_power = HCI_TX_POWER_INVALID;
292 memset(hdev->adv_data, 0, sizeof(hdev->adv_data));
293 hdev->adv_data_len = 0;
295 memset(hdev->scan_rsp_data, 0, sizeof(hdev->scan_rsp_data));
296 hdev->scan_rsp_data_len = 0;
298 hdev->le_scan_type = LE_SCAN_PASSIVE;
300 hdev->ssp_debug_mode = 0;
302 hci_bdaddr_list_clear(&hdev->le_accept_list);
303 hci_bdaddr_list_clear(&hdev->le_resolv_list);
308 static u8 hci_cc_read_stored_link_key(struct hci_dev *hdev, void *data,
311 struct hci_rp_read_stored_link_key *rp = data;
312 struct hci_cp_read_stored_link_key *sent;
314 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
316 sent = hci_sent_cmd_data(hdev, HCI_OP_READ_STORED_LINK_KEY);
320 if (!rp->status && sent->read_all == 0x01) {
321 hdev->stored_max_keys = le16_to_cpu(rp->max_keys);
322 hdev->stored_num_keys = le16_to_cpu(rp->num_keys);
328 static u8 hci_cc_delete_stored_link_key(struct hci_dev *hdev, void *data,
331 struct hci_rp_delete_stored_link_key *rp = data;
334 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
339 num_keys = le16_to_cpu(rp->num_keys);
341 if (num_keys <= hdev->stored_num_keys)
342 hdev->stored_num_keys -= num_keys;
344 hdev->stored_num_keys = 0;
349 static u8 hci_cc_write_local_name(struct hci_dev *hdev, void *data,
352 struct hci_ev_status *rp = data;
355 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
357 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LOCAL_NAME);
363 if (hci_dev_test_flag(hdev, HCI_MGMT))
364 mgmt_set_local_name_complete(hdev, sent, rp->status);
365 else if (!rp->status)
366 memcpy(hdev->dev_name, sent, HCI_MAX_NAME_LENGTH);
368 hci_dev_unlock(hdev);
373 static u8 hci_cc_read_local_name(struct hci_dev *hdev, void *data,
376 struct hci_rp_read_local_name *rp = data;
378 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
383 if (hci_dev_test_flag(hdev, HCI_SETUP) ||
384 hci_dev_test_flag(hdev, HCI_CONFIG))
385 memcpy(hdev->dev_name, rp->name, HCI_MAX_NAME_LENGTH);
390 static u8 hci_cc_write_auth_enable(struct hci_dev *hdev, void *data,
393 struct hci_ev_status *rp = data;
396 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
398 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_AUTH_ENABLE);
405 __u8 param = *((__u8 *) sent);
407 if (param == AUTH_ENABLED)
408 set_bit(HCI_AUTH, &hdev->flags);
410 clear_bit(HCI_AUTH, &hdev->flags);
413 if (hci_dev_test_flag(hdev, HCI_MGMT))
414 mgmt_auth_enable_complete(hdev, rp->status);
416 hci_dev_unlock(hdev);
421 static u8 hci_cc_write_encrypt_mode(struct hci_dev *hdev, void *data,
424 struct hci_ev_status *rp = data;
428 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
433 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_ENCRYPT_MODE);
437 param = *((__u8 *) sent);
440 set_bit(HCI_ENCRYPT, &hdev->flags);
442 clear_bit(HCI_ENCRYPT, &hdev->flags);
447 static u8 hci_cc_write_scan_enable(struct hci_dev *hdev, void *data,
450 struct hci_ev_status *rp = data;
454 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
456 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SCAN_ENABLE);
460 param = *((__u8 *) sent);
465 hdev->discov_timeout = 0;
469 if (param & SCAN_INQUIRY)
470 set_bit(HCI_ISCAN, &hdev->flags);
472 clear_bit(HCI_ISCAN, &hdev->flags);
474 if (param & SCAN_PAGE)
475 set_bit(HCI_PSCAN, &hdev->flags);
477 clear_bit(HCI_PSCAN, &hdev->flags);
480 hci_dev_unlock(hdev);
485 static u8 hci_cc_set_event_filter(struct hci_dev *hdev, void *data,
488 struct hci_ev_status *rp = data;
489 struct hci_cp_set_event_filter *cp;
492 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
497 sent = hci_sent_cmd_data(hdev, HCI_OP_SET_EVENT_FLT);
501 cp = (struct hci_cp_set_event_filter *)sent;
503 if (cp->flt_type == HCI_FLT_CLEAR_ALL)
504 hci_dev_clear_flag(hdev, HCI_EVENT_FILTER_CONFIGURED);
506 hci_dev_set_flag(hdev, HCI_EVENT_FILTER_CONFIGURED);
511 static u8 hci_cc_read_class_of_dev(struct hci_dev *hdev, void *data,
514 struct hci_rp_read_class_of_dev *rp = data;
516 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
521 memcpy(hdev->dev_class, rp->dev_class, 3);
523 bt_dev_dbg(hdev, "class 0x%.2x%.2x%.2x", hdev->dev_class[2],
524 hdev->dev_class[1], hdev->dev_class[0]);
529 static u8 hci_cc_write_class_of_dev(struct hci_dev *hdev, void *data,
532 struct hci_ev_status *rp = data;
535 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
537 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_CLASS_OF_DEV);
544 memcpy(hdev->dev_class, sent, 3);
546 if (hci_dev_test_flag(hdev, HCI_MGMT))
547 mgmt_set_class_of_dev_complete(hdev, sent, rp->status);
549 hci_dev_unlock(hdev);
554 static u8 hci_cc_read_voice_setting(struct hci_dev *hdev, void *data,
557 struct hci_rp_read_voice_setting *rp = data;
560 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
565 setting = __le16_to_cpu(rp->voice_setting);
567 if (hdev->voice_setting == setting)
570 hdev->voice_setting = setting;
572 bt_dev_dbg(hdev, "voice setting 0x%4.4x", setting);
575 hdev->notify(hdev, HCI_NOTIFY_VOICE_SETTING);
580 static u8 hci_cc_write_voice_setting(struct hci_dev *hdev, void *data,
583 struct hci_ev_status *rp = data;
587 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
592 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_VOICE_SETTING);
596 setting = get_unaligned_le16(sent);
598 if (hdev->voice_setting == setting)
601 hdev->voice_setting = setting;
603 bt_dev_dbg(hdev, "voice setting 0x%4.4x", setting);
606 hdev->notify(hdev, HCI_NOTIFY_VOICE_SETTING);
611 static u8 hci_cc_read_num_supported_iac(struct hci_dev *hdev, void *data,
614 struct hci_rp_read_num_supported_iac *rp = data;
616 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
621 hdev->num_iac = rp->num_iac;
623 bt_dev_dbg(hdev, "num iac %d", hdev->num_iac);
628 static u8 hci_cc_write_ssp_mode(struct hci_dev *hdev, void *data,
631 struct hci_ev_status *rp = data;
632 struct hci_cp_write_ssp_mode *sent;
634 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
636 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SSP_MODE);
644 hdev->features[1][0] |= LMP_HOST_SSP;
646 hdev->features[1][0] &= ~LMP_HOST_SSP;
651 hci_dev_set_flag(hdev, HCI_SSP_ENABLED);
653 hci_dev_clear_flag(hdev, HCI_SSP_ENABLED);
656 hci_dev_unlock(hdev);
661 static u8 hci_cc_write_sc_support(struct hci_dev *hdev, void *data,
664 struct hci_ev_status *rp = data;
665 struct hci_cp_write_sc_support *sent;
667 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
669 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SC_SUPPORT);
677 hdev->features[1][0] |= LMP_HOST_SC;
679 hdev->features[1][0] &= ~LMP_HOST_SC;
682 if (!hci_dev_test_flag(hdev, HCI_MGMT) && !rp->status) {
684 hci_dev_set_flag(hdev, HCI_SC_ENABLED);
686 hci_dev_clear_flag(hdev, HCI_SC_ENABLED);
689 hci_dev_unlock(hdev);
694 static u8 hci_cc_read_local_version(struct hci_dev *hdev, void *data,
697 struct hci_rp_read_local_version *rp = data;
699 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
704 if (hci_dev_test_flag(hdev, HCI_SETUP) ||
705 hci_dev_test_flag(hdev, HCI_CONFIG)) {
706 hdev->hci_ver = rp->hci_ver;
707 hdev->hci_rev = __le16_to_cpu(rp->hci_rev);
708 hdev->lmp_ver = rp->lmp_ver;
709 hdev->manufacturer = __le16_to_cpu(rp->manufacturer);
710 hdev->lmp_subver = __le16_to_cpu(rp->lmp_subver);
716 static u8 hci_cc_read_enc_key_size(struct hci_dev *hdev, void *data,
719 struct hci_rp_read_enc_key_size *rp = data;
720 struct hci_conn *conn;
722 u8 status = rp->status;
724 bt_dev_dbg(hdev, "status 0x%2.2x", status);
726 handle = le16_to_cpu(rp->handle);
730 conn = hci_conn_hash_lookup_handle(hdev, handle);
736 /* While unexpected, the read_enc_key_size command may fail. The most
737 * secure approach is to then assume the key size is 0 to force a
741 bt_dev_err(hdev, "failed to read key size for handle %u",
743 conn->enc_key_size = 0;
745 conn->enc_key_size = rp->key_size;
749 hci_encrypt_cfm(conn, 0);
752 hci_dev_unlock(hdev);
757 static u8 hci_cc_read_local_commands(struct hci_dev *hdev, void *data,
760 struct hci_rp_read_local_commands *rp = data;
762 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
767 if (hci_dev_test_flag(hdev, HCI_SETUP) ||
768 hci_dev_test_flag(hdev, HCI_CONFIG))
769 memcpy(hdev->commands, rp->commands, sizeof(hdev->commands));
774 static u8 hci_cc_read_auth_payload_timeout(struct hci_dev *hdev, void *data,
777 struct hci_rp_read_auth_payload_to *rp = data;
778 struct hci_conn *conn;
780 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
787 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
789 conn->auth_payload_timeout = __le16_to_cpu(rp->timeout);
791 hci_dev_unlock(hdev);
796 static u8 hci_cc_write_auth_payload_timeout(struct hci_dev *hdev, void *data,
799 struct hci_rp_write_auth_payload_to *rp = data;
800 struct hci_conn *conn;
803 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
805 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_AUTH_PAYLOAD_TO);
811 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
818 conn->auth_payload_timeout = get_unaligned_le16(sent + 2);
820 hci_encrypt_cfm(conn, 0);
823 hci_dev_unlock(hdev);
828 static u8 hci_cc_read_local_features(struct hci_dev *hdev, void *data,
831 struct hci_rp_read_local_features *rp = data;
833 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
838 memcpy(hdev->features, rp->features, 8);
840 /* Adjust default settings according to features
841 * supported by device. */
843 if (hdev->features[0][0] & LMP_3SLOT)
844 hdev->pkt_type |= (HCI_DM3 | HCI_DH3);
846 if (hdev->features[0][0] & LMP_5SLOT)
847 hdev->pkt_type |= (HCI_DM5 | HCI_DH5);
849 if (hdev->features[0][1] & LMP_HV2) {
850 hdev->pkt_type |= (HCI_HV2);
851 hdev->esco_type |= (ESCO_HV2);
854 if (hdev->features[0][1] & LMP_HV3) {
855 hdev->pkt_type |= (HCI_HV3);
856 hdev->esco_type |= (ESCO_HV3);
859 if (lmp_esco_capable(hdev))
860 hdev->esco_type |= (ESCO_EV3);
862 if (hdev->features[0][4] & LMP_EV4)
863 hdev->esco_type |= (ESCO_EV4);
865 if (hdev->features[0][4] & LMP_EV5)
866 hdev->esco_type |= (ESCO_EV5);
868 if (hdev->features[0][5] & LMP_EDR_ESCO_2M)
869 hdev->esco_type |= (ESCO_2EV3);
871 if (hdev->features[0][5] & LMP_EDR_ESCO_3M)
872 hdev->esco_type |= (ESCO_3EV3);
874 if (hdev->features[0][5] & LMP_EDR_3S_ESCO)
875 hdev->esco_type |= (ESCO_2EV5 | ESCO_3EV5);
880 static u8 hci_cc_read_local_ext_features(struct hci_dev *hdev, void *data,
883 struct hci_rp_read_local_ext_features *rp = data;
885 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
890 if (hdev->max_page < rp->max_page) {
891 if (test_bit(HCI_QUIRK_BROKEN_LOCAL_EXT_FEATURES_PAGE_2,
893 bt_dev_warn(hdev, "broken local ext features page 2");
895 hdev->max_page = rp->max_page;
898 if (rp->page < HCI_MAX_PAGES)
899 memcpy(hdev->features[rp->page], rp->features, 8);
904 static u8 hci_cc_read_flow_control_mode(struct hci_dev *hdev, void *data,
907 struct hci_rp_read_flow_control_mode *rp = data;
909 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
914 hdev->flow_ctl_mode = rp->mode;
919 static u8 hci_cc_read_buffer_size(struct hci_dev *hdev, void *data,
922 struct hci_rp_read_buffer_size *rp = data;
924 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
929 hdev->acl_mtu = __le16_to_cpu(rp->acl_mtu);
930 hdev->sco_mtu = rp->sco_mtu;
931 hdev->acl_pkts = __le16_to_cpu(rp->acl_max_pkt);
932 hdev->sco_pkts = __le16_to_cpu(rp->sco_max_pkt);
934 if (test_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks)) {
939 hdev->acl_cnt = hdev->acl_pkts;
940 hdev->sco_cnt = hdev->sco_pkts;
942 BT_DBG("%s acl mtu %d:%d sco mtu %d:%d", hdev->name, hdev->acl_mtu,
943 hdev->acl_pkts, hdev->sco_mtu, hdev->sco_pkts);
948 static u8 hci_cc_read_bd_addr(struct hci_dev *hdev, void *data,
951 struct hci_rp_read_bd_addr *rp = data;
953 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
958 if (test_bit(HCI_INIT, &hdev->flags))
959 bacpy(&hdev->bdaddr, &rp->bdaddr);
961 if (hci_dev_test_flag(hdev, HCI_SETUP))
962 bacpy(&hdev->setup_addr, &rp->bdaddr);
967 static u8 hci_cc_read_local_pairing_opts(struct hci_dev *hdev, void *data,
970 struct hci_rp_read_local_pairing_opts *rp = data;
972 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
977 if (hci_dev_test_flag(hdev, HCI_SETUP) ||
978 hci_dev_test_flag(hdev, HCI_CONFIG)) {
979 hdev->pairing_opts = rp->pairing_opts;
980 hdev->max_enc_key_size = rp->max_key_size;
986 static u8 hci_cc_read_page_scan_activity(struct hci_dev *hdev, void *data,
989 struct hci_rp_read_page_scan_activity *rp = data;
991 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
996 if (test_bit(HCI_INIT, &hdev->flags)) {
997 hdev->page_scan_interval = __le16_to_cpu(rp->interval);
998 hdev->page_scan_window = __le16_to_cpu(rp->window);
1004 static u8 hci_cc_write_page_scan_activity(struct hci_dev *hdev, void *data,
1005 struct sk_buff *skb)
1007 struct hci_ev_status *rp = data;
1008 struct hci_cp_write_page_scan_activity *sent;
1010 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1015 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_PAGE_SCAN_ACTIVITY);
1019 hdev->page_scan_interval = __le16_to_cpu(sent->interval);
1020 hdev->page_scan_window = __le16_to_cpu(sent->window);
1025 static u8 hci_cc_read_page_scan_type(struct hci_dev *hdev, void *data,
1026 struct sk_buff *skb)
1028 struct hci_rp_read_page_scan_type *rp = data;
1030 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1035 if (test_bit(HCI_INIT, &hdev->flags))
1036 hdev->page_scan_type = rp->type;
1041 static u8 hci_cc_write_page_scan_type(struct hci_dev *hdev, void *data,
1042 struct sk_buff *skb)
1044 struct hci_ev_status *rp = data;
1047 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1052 type = hci_sent_cmd_data(hdev, HCI_OP_WRITE_PAGE_SCAN_TYPE);
1054 hdev->page_scan_type = *type;
1059 static u8 hci_cc_read_data_block_size(struct hci_dev *hdev, void *data,
1060 struct sk_buff *skb)
1062 struct hci_rp_read_data_block_size *rp = data;
1064 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1069 hdev->block_mtu = __le16_to_cpu(rp->max_acl_len);
1070 hdev->block_len = __le16_to_cpu(rp->block_len);
1071 hdev->num_blocks = __le16_to_cpu(rp->num_blocks);
1073 hdev->block_cnt = hdev->num_blocks;
1075 BT_DBG("%s blk mtu %d cnt %d len %d", hdev->name, hdev->block_mtu,
1076 hdev->block_cnt, hdev->block_len);
1081 static u8 hci_cc_read_clock(struct hci_dev *hdev, void *data,
1082 struct sk_buff *skb)
1084 struct hci_rp_read_clock *rp = data;
1085 struct hci_cp_read_clock *cp;
1086 struct hci_conn *conn;
1088 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1095 cp = hci_sent_cmd_data(hdev, HCI_OP_READ_CLOCK);
1099 if (cp->which == 0x00) {
1100 hdev->clock = le32_to_cpu(rp->clock);
1104 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
1106 conn->clock = le32_to_cpu(rp->clock);
1107 conn->clock_accuracy = le16_to_cpu(rp->accuracy);
1111 hci_dev_unlock(hdev);
1115 static u8 hci_cc_read_local_amp_info(struct hci_dev *hdev, void *data,
1116 struct sk_buff *skb)
1118 struct hci_rp_read_local_amp_info *rp = data;
1120 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1125 hdev->amp_status = rp->amp_status;
1126 hdev->amp_total_bw = __le32_to_cpu(rp->total_bw);
1127 hdev->amp_max_bw = __le32_to_cpu(rp->max_bw);
1128 hdev->amp_min_latency = __le32_to_cpu(rp->min_latency);
1129 hdev->amp_max_pdu = __le32_to_cpu(rp->max_pdu);
1130 hdev->amp_type = rp->amp_type;
1131 hdev->amp_pal_cap = __le16_to_cpu(rp->pal_cap);
1132 hdev->amp_assoc_size = __le16_to_cpu(rp->max_assoc_size);
1133 hdev->amp_be_flush_to = __le32_to_cpu(rp->be_flush_to);
1134 hdev->amp_max_flush_to = __le32_to_cpu(rp->max_flush_to);
1139 static u8 hci_cc_read_inq_rsp_tx_power(struct hci_dev *hdev, void *data,
1140 struct sk_buff *skb)
1142 struct hci_rp_read_inq_rsp_tx_power *rp = data;
1144 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1149 hdev->inq_tx_power = rp->tx_power;
1154 static u8 hci_cc_read_def_err_data_reporting(struct hci_dev *hdev, void *data,
1155 struct sk_buff *skb)
1157 struct hci_rp_read_def_err_data_reporting *rp = data;
1159 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1164 hdev->err_data_reporting = rp->err_data_reporting;
1169 static u8 hci_cc_write_def_err_data_reporting(struct hci_dev *hdev, void *data,
1170 struct sk_buff *skb)
1172 struct hci_ev_status *rp = data;
1173 struct hci_cp_write_def_err_data_reporting *cp;
1175 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1180 cp = hci_sent_cmd_data(hdev, HCI_OP_WRITE_DEF_ERR_DATA_REPORTING);
1184 hdev->err_data_reporting = cp->err_data_reporting;
1189 static u8 hci_cc_pin_code_reply(struct hci_dev *hdev, void *data,
1190 struct sk_buff *skb)
1192 struct hci_rp_pin_code_reply *rp = data;
1193 struct hci_cp_pin_code_reply *cp;
1194 struct hci_conn *conn;
1196 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1200 if (hci_dev_test_flag(hdev, HCI_MGMT))
1201 mgmt_pin_code_reply_complete(hdev, &rp->bdaddr, rp->status);
1206 cp = hci_sent_cmd_data(hdev, HCI_OP_PIN_CODE_REPLY);
1210 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
1212 conn->pin_length = cp->pin_len;
1215 hci_dev_unlock(hdev);
1219 static u8 hci_cc_pin_code_neg_reply(struct hci_dev *hdev, void *data,
1220 struct sk_buff *skb)
1222 struct hci_rp_pin_code_neg_reply *rp = data;
1224 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1228 if (hci_dev_test_flag(hdev, HCI_MGMT))
1229 mgmt_pin_code_neg_reply_complete(hdev, &rp->bdaddr,
1232 hci_dev_unlock(hdev);
1237 static u8 hci_cc_le_read_buffer_size(struct hci_dev *hdev, void *data,
1238 struct sk_buff *skb)
1240 struct hci_rp_le_read_buffer_size *rp = data;
1242 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1247 hdev->le_mtu = __le16_to_cpu(rp->le_mtu);
1248 hdev->le_pkts = rp->le_max_pkt;
1250 hdev->le_cnt = hdev->le_pkts;
1252 BT_DBG("%s le mtu %d:%d", hdev->name, hdev->le_mtu, hdev->le_pkts);
1257 static u8 hci_cc_le_read_local_features(struct hci_dev *hdev, void *data,
1258 struct sk_buff *skb)
1260 struct hci_rp_le_read_local_features *rp = data;
1262 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
1267 memcpy(hdev->le_features, rp->features, 8);
1272 static u8 hci_cc_le_read_adv_tx_power(struct hci_dev *hdev, void *data,
1273 struct sk_buff *skb)
1275 struct hci_rp_le_read_adv_tx_power *rp = data;
1277 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1282 hdev->adv_tx_power = rp->tx_power;
1287 static u8 hci_cc_user_confirm_reply(struct hci_dev *hdev, void *data,
1288 struct sk_buff *skb)
1290 struct hci_rp_user_confirm_reply *rp = data;
1292 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1296 if (hci_dev_test_flag(hdev, HCI_MGMT))
1297 mgmt_user_confirm_reply_complete(hdev, &rp->bdaddr, ACL_LINK, 0,
1300 hci_dev_unlock(hdev);
1305 static u8 hci_cc_user_confirm_neg_reply(struct hci_dev *hdev, void *data,
1306 struct sk_buff *skb)
1308 struct hci_rp_user_confirm_reply *rp = data;
1310 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1314 if (hci_dev_test_flag(hdev, HCI_MGMT))
1315 mgmt_user_confirm_neg_reply_complete(hdev, &rp->bdaddr,
1316 ACL_LINK, 0, rp->status);
1318 hci_dev_unlock(hdev);
1323 static u8 hci_cc_user_passkey_reply(struct hci_dev *hdev, void *data,
1324 struct sk_buff *skb)
1326 struct hci_rp_user_confirm_reply *rp = data;
1328 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1332 if (hci_dev_test_flag(hdev, HCI_MGMT))
1333 mgmt_user_passkey_reply_complete(hdev, &rp->bdaddr, ACL_LINK,
1336 hci_dev_unlock(hdev);
1341 static u8 hci_cc_user_passkey_neg_reply(struct hci_dev *hdev, void *data,
1342 struct sk_buff *skb)
1344 struct hci_rp_user_confirm_reply *rp = data;
1346 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1350 if (hci_dev_test_flag(hdev, HCI_MGMT))
1351 mgmt_user_passkey_neg_reply_complete(hdev, &rp->bdaddr,
1352 ACL_LINK, 0, rp->status);
1354 hci_dev_unlock(hdev);
1359 static u8 hci_cc_read_local_oob_data(struct hci_dev *hdev, void *data,
1360 struct sk_buff *skb)
1362 struct hci_rp_read_local_oob_data *rp = data;
1364 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1369 static u8 hci_cc_read_local_oob_ext_data(struct hci_dev *hdev, void *data,
1370 struct sk_buff *skb)
1372 struct hci_rp_read_local_oob_ext_data *rp = data;
1374 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1379 static u8 hci_cc_le_set_random_addr(struct hci_dev *hdev, void *data,
1380 struct sk_buff *skb)
1382 struct hci_ev_status *rp = data;
1385 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1390 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_RANDOM_ADDR);
1396 bacpy(&hdev->random_addr, sent);
1398 if (!bacmp(&hdev->rpa, sent)) {
1399 hci_dev_clear_flag(hdev, HCI_RPA_EXPIRED);
1400 queue_delayed_work(hdev->workqueue, &hdev->rpa_expired,
1401 secs_to_jiffies(hdev->rpa_timeout));
1404 hci_dev_unlock(hdev);
1409 static u8 hci_cc_le_set_default_phy(struct hci_dev *hdev, void *data,
1410 struct sk_buff *skb)
1412 struct hci_ev_status *rp = data;
1413 struct hci_cp_le_set_default_phy *cp;
1415 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1420 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_DEFAULT_PHY);
1426 hdev->le_tx_def_phys = cp->tx_phys;
1427 hdev->le_rx_def_phys = cp->rx_phys;
1429 hci_dev_unlock(hdev);
1434 static u8 hci_cc_le_set_adv_set_random_addr(struct hci_dev *hdev, void *data,
1435 struct sk_buff *skb)
1437 struct hci_ev_status *rp = data;
1438 struct hci_cp_le_set_adv_set_rand_addr *cp;
1439 struct adv_info *adv;
1441 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1446 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADV_SET_RAND_ADDR);
1447 /* Update only in case the adv instance since handle 0x00 shall be using
1448 * HCI_OP_LE_SET_RANDOM_ADDR since that allows both extended and
1449 * non-extended adverting.
1451 if (!cp || !cp->handle)
1456 adv = hci_find_adv_instance(hdev, cp->handle);
1458 bacpy(&adv->random_addr, &cp->bdaddr);
1459 if (!bacmp(&hdev->rpa, &cp->bdaddr)) {
1460 adv->rpa_expired = false;
1461 queue_delayed_work(hdev->workqueue,
1462 &adv->rpa_expired_cb,
1463 secs_to_jiffies(hdev->rpa_timeout));
1467 hci_dev_unlock(hdev);
1472 static u8 hci_cc_le_remove_adv_set(struct hci_dev *hdev, void *data,
1473 struct sk_buff *skb)
1475 struct hci_ev_status *rp = data;
1479 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1484 instance = hci_sent_cmd_data(hdev, HCI_OP_LE_REMOVE_ADV_SET);
1490 err = hci_remove_adv_instance(hdev, *instance);
1492 mgmt_advertising_removed(hci_skb_sk(hdev->sent_cmd), hdev,
1495 hci_dev_unlock(hdev);
1500 static u8 hci_cc_le_clear_adv_sets(struct hci_dev *hdev, void *data,
1501 struct sk_buff *skb)
1503 struct hci_ev_status *rp = data;
1504 struct adv_info *adv, *n;
1507 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1512 if (!hci_sent_cmd_data(hdev, HCI_OP_LE_CLEAR_ADV_SETS))
1517 list_for_each_entry_safe(adv, n, &hdev->adv_instances, list) {
1518 u8 instance = adv->instance;
1520 err = hci_remove_adv_instance(hdev, instance);
1522 mgmt_advertising_removed(hci_skb_sk(hdev->sent_cmd),
1526 hci_dev_unlock(hdev);
1531 static u8 hci_cc_le_read_transmit_power(struct hci_dev *hdev, void *data,
1532 struct sk_buff *skb)
1534 struct hci_rp_le_read_transmit_power *rp = data;
1536 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1541 hdev->min_le_tx_power = rp->min_le_tx_power;
1542 hdev->max_le_tx_power = rp->max_le_tx_power;
1547 static u8 hci_cc_le_set_privacy_mode(struct hci_dev *hdev, void *data,
1548 struct sk_buff *skb)
1550 struct hci_ev_status *rp = data;
1551 struct hci_cp_le_set_privacy_mode *cp;
1552 struct hci_conn_params *params;
1554 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1559 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_PRIVACY_MODE);
1565 params = hci_conn_params_lookup(hdev, &cp->bdaddr, cp->bdaddr_type);
1567 WRITE_ONCE(params->privacy_mode, cp->mode);
1569 hci_dev_unlock(hdev);
1574 static u8 hci_cc_le_set_adv_enable(struct hci_dev *hdev, void *data,
1575 struct sk_buff *skb)
1577 struct hci_ev_status *rp = data;
1580 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1585 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADV_ENABLE);
1591 /* If we're doing connection initiation as peripheral. Set a
1592 * timeout in case something goes wrong.
1595 struct hci_conn *conn;
1597 hci_dev_set_flag(hdev, HCI_LE_ADV);
1599 conn = hci_lookup_le_connect(hdev);
1601 queue_delayed_work(hdev->workqueue,
1602 &conn->le_conn_timeout,
1603 conn->conn_timeout);
1605 hci_dev_clear_flag(hdev, HCI_LE_ADV);
1608 hci_dev_unlock(hdev);
1613 static u8 hci_cc_le_set_ext_adv_enable(struct hci_dev *hdev, void *data,
1614 struct sk_buff *skb)
1616 struct hci_cp_le_set_ext_adv_enable *cp;
1617 struct hci_cp_ext_adv_set *set;
1618 struct adv_info *adv = NULL, *n;
1619 struct hci_ev_status *rp = data;
1621 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1626 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_EXT_ADV_ENABLE);
1630 set = (void *)cp->data;
1634 if (cp->num_of_sets)
1635 adv = hci_find_adv_instance(hdev, set->handle);
1638 struct hci_conn *conn;
1640 hci_dev_set_flag(hdev, HCI_LE_ADV);
1643 adv->enabled = true;
1645 conn = hci_lookup_le_connect(hdev);
1647 queue_delayed_work(hdev->workqueue,
1648 &conn->le_conn_timeout,
1649 conn->conn_timeout);
1651 if (cp->num_of_sets) {
1653 adv->enabled = false;
1655 /* If just one instance was disabled check if there are
1656 * any other instance enabled before clearing HCI_LE_ADV
1658 list_for_each_entry_safe(adv, n, &hdev->adv_instances,
1664 /* All instances shall be considered disabled */
1665 list_for_each_entry_safe(adv, n, &hdev->adv_instances,
1667 adv->enabled = false;
1670 hci_dev_clear_flag(hdev, HCI_LE_ADV);
1674 hci_dev_unlock(hdev);
1678 static u8 hci_cc_le_set_scan_param(struct hci_dev *hdev, void *data,
1679 struct sk_buff *skb)
1681 struct hci_cp_le_set_scan_param *cp;
1682 struct hci_ev_status *rp = data;
1684 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1689 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_SCAN_PARAM);
1695 hdev->le_scan_type = cp->type;
1697 hci_dev_unlock(hdev);
1702 static u8 hci_cc_le_set_ext_scan_param(struct hci_dev *hdev, void *data,
1703 struct sk_buff *skb)
1705 struct hci_cp_le_set_ext_scan_params *cp;
1706 struct hci_ev_status *rp = data;
1707 struct hci_cp_le_scan_phy_params *phy_param;
1709 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1714 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_EXT_SCAN_PARAMS);
1718 phy_param = (void *)cp->data;
1722 hdev->le_scan_type = phy_param->type;
1724 hci_dev_unlock(hdev);
1729 static bool has_pending_adv_report(struct hci_dev *hdev)
1731 struct discovery_state *d = &hdev->discovery;
1733 return bacmp(&d->last_adv_addr, BDADDR_ANY);
1736 static void clear_pending_adv_report(struct hci_dev *hdev)
1738 struct discovery_state *d = &hdev->discovery;
1740 bacpy(&d->last_adv_addr, BDADDR_ANY);
1741 d->last_adv_data_len = 0;
1744 static void store_pending_adv_report(struct hci_dev *hdev, bdaddr_t *bdaddr,
1745 u8 bdaddr_type, s8 rssi, u32 flags,
1748 struct discovery_state *d = &hdev->discovery;
1750 if (len > HCI_MAX_AD_LENGTH)
1753 bacpy(&d->last_adv_addr, bdaddr);
1754 d->last_adv_addr_type = bdaddr_type;
1755 d->last_adv_rssi = rssi;
1756 d->last_adv_flags = flags;
1757 memcpy(d->last_adv_data, data, len);
1758 d->last_adv_data_len = len;
1761 static void le_set_scan_enable_complete(struct hci_dev *hdev, u8 enable)
1766 case LE_SCAN_ENABLE:
1767 hci_dev_set_flag(hdev, HCI_LE_SCAN);
1768 if (hdev->le_scan_type == LE_SCAN_ACTIVE)
1769 clear_pending_adv_report(hdev);
1770 if (hci_dev_test_flag(hdev, HCI_MESH))
1771 hci_discovery_set_state(hdev, DISCOVERY_FINDING);
1774 case LE_SCAN_DISABLE:
1775 /* We do this here instead of when setting DISCOVERY_STOPPED
1776 * since the latter would potentially require waiting for
1777 * inquiry to stop too.
1779 if (has_pending_adv_report(hdev)) {
1780 struct discovery_state *d = &hdev->discovery;
1782 mgmt_device_found(hdev, &d->last_adv_addr, LE_LINK,
1783 d->last_adv_addr_type, NULL,
1784 d->last_adv_rssi, d->last_adv_flags,
1786 d->last_adv_data_len, NULL, 0, 0);
1789 /* Cancel this timer so that we don't try to disable scanning
1790 * when it's already disabled.
1792 cancel_delayed_work(&hdev->le_scan_disable);
1794 hci_dev_clear_flag(hdev, HCI_LE_SCAN);
1796 /* The HCI_LE_SCAN_INTERRUPTED flag indicates that we
1797 * interrupted scanning due to a connect request. Mark
1798 * therefore discovery as stopped.
1800 if (hci_dev_test_and_clear_flag(hdev, HCI_LE_SCAN_INTERRUPTED))
1801 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
1802 else if (!hci_dev_test_flag(hdev, HCI_LE_ADV) &&
1803 hdev->discovery.state == DISCOVERY_FINDING)
1804 queue_work(hdev->workqueue, &hdev->reenable_adv_work);
1809 bt_dev_err(hdev, "use of reserved LE_Scan_Enable param %d",
1814 hci_dev_unlock(hdev);
1817 static u8 hci_cc_le_set_scan_enable(struct hci_dev *hdev, void *data,
1818 struct sk_buff *skb)
1820 struct hci_cp_le_set_scan_enable *cp;
1821 struct hci_ev_status *rp = data;
1823 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1828 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_SCAN_ENABLE);
1832 le_set_scan_enable_complete(hdev, cp->enable);
1837 static u8 hci_cc_le_set_ext_scan_enable(struct hci_dev *hdev, void *data,
1838 struct sk_buff *skb)
1840 struct hci_cp_le_set_ext_scan_enable *cp;
1841 struct hci_ev_status *rp = data;
1843 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1848 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_EXT_SCAN_ENABLE);
1852 le_set_scan_enable_complete(hdev, cp->enable);
1857 static u8 hci_cc_le_read_num_adv_sets(struct hci_dev *hdev, void *data,
1858 struct sk_buff *skb)
1860 struct hci_rp_le_read_num_supported_adv_sets *rp = data;
1862 bt_dev_dbg(hdev, "status 0x%2.2x No of Adv sets %u", rp->status,
1868 hdev->le_num_of_adv_sets = rp->num_of_sets;
1873 static u8 hci_cc_le_read_accept_list_size(struct hci_dev *hdev, void *data,
1874 struct sk_buff *skb)
1876 struct hci_rp_le_read_accept_list_size *rp = data;
1878 bt_dev_dbg(hdev, "status 0x%2.2x size %u", rp->status, rp->size);
1883 hdev->le_accept_list_size = rp->size;
1888 static u8 hci_cc_le_clear_accept_list(struct hci_dev *hdev, void *data,
1889 struct sk_buff *skb)
1891 struct hci_ev_status *rp = data;
1893 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1899 hci_bdaddr_list_clear(&hdev->le_accept_list);
1900 hci_dev_unlock(hdev);
1905 static u8 hci_cc_le_add_to_accept_list(struct hci_dev *hdev, void *data,
1906 struct sk_buff *skb)
1908 struct hci_cp_le_add_to_accept_list *sent;
1909 struct hci_ev_status *rp = data;
1911 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1916 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_ADD_TO_ACCEPT_LIST);
1921 hci_bdaddr_list_add(&hdev->le_accept_list, &sent->bdaddr,
1923 hci_dev_unlock(hdev);
1928 static u8 hci_cc_le_del_from_accept_list(struct hci_dev *hdev, void *data,
1929 struct sk_buff *skb)
1931 struct hci_cp_le_del_from_accept_list *sent;
1932 struct hci_ev_status *rp = data;
1934 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1939 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_DEL_FROM_ACCEPT_LIST);
1944 hci_bdaddr_list_del(&hdev->le_accept_list, &sent->bdaddr,
1946 hci_dev_unlock(hdev);
1951 static u8 hci_cc_le_read_supported_states(struct hci_dev *hdev, void *data,
1952 struct sk_buff *skb)
1954 struct hci_rp_le_read_supported_states *rp = data;
1956 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1961 memcpy(hdev->le_states, rp->le_states, 8);
1966 static u8 hci_cc_le_read_def_data_len(struct hci_dev *hdev, void *data,
1967 struct sk_buff *skb)
1969 struct hci_rp_le_read_def_data_len *rp = data;
1971 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1976 hdev->le_def_tx_len = le16_to_cpu(rp->tx_len);
1977 hdev->le_def_tx_time = le16_to_cpu(rp->tx_time);
1982 static u8 hci_cc_le_write_def_data_len(struct hci_dev *hdev, void *data,
1983 struct sk_buff *skb)
1985 struct hci_cp_le_write_def_data_len *sent;
1986 struct hci_ev_status *rp = data;
1988 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1993 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_WRITE_DEF_DATA_LEN);
1997 hdev->le_def_tx_len = le16_to_cpu(sent->tx_len);
1998 hdev->le_def_tx_time = le16_to_cpu(sent->tx_time);
2003 static u8 hci_cc_le_add_to_resolv_list(struct hci_dev *hdev, void *data,
2004 struct sk_buff *skb)
2006 struct hci_cp_le_add_to_resolv_list *sent;
2007 struct hci_ev_status *rp = data;
2009 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2014 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_ADD_TO_RESOLV_LIST);
2019 hci_bdaddr_list_add_with_irk(&hdev->le_resolv_list, &sent->bdaddr,
2020 sent->bdaddr_type, sent->peer_irk,
2022 hci_dev_unlock(hdev);
2027 static u8 hci_cc_le_del_from_resolv_list(struct hci_dev *hdev, void *data,
2028 struct sk_buff *skb)
2030 struct hci_cp_le_del_from_resolv_list *sent;
2031 struct hci_ev_status *rp = data;
2033 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2038 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_DEL_FROM_RESOLV_LIST);
2043 hci_bdaddr_list_del_with_irk(&hdev->le_resolv_list, &sent->bdaddr,
2045 hci_dev_unlock(hdev);
2050 static u8 hci_cc_le_clear_resolv_list(struct hci_dev *hdev, void *data,
2051 struct sk_buff *skb)
2053 struct hci_ev_status *rp = data;
2055 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2061 hci_bdaddr_list_clear(&hdev->le_resolv_list);
2062 hci_dev_unlock(hdev);
2067 static u8 hci_cc_le_read_resolv_list_size(struct hci_dev *hdev, void *data,
2068 struct sk_buff *skb)
2070 struct hci_rp_le_read_resolv_list_size *rp = data;
2072 bt_dev_dbg(hdev, "status 0x%2.2x size %u", rp->status, rp->size);
2077 hdev->le_resolv_list_size = rp->size;
2082 static u8 hci_cc_le_set_addr_resolution_enable(struct hci_dev *hdev, void *data,
2083 struct sk_buff *skb)
2085 struct hci_ev_status *rp = data;
2088 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2093 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADDR_RESOLV_ENABLE);
2100 hci_dev_set_flag(hdev, HCI_LL_RPA_RESOLUTION);
2102 hci_dev_clear_flag(hdev, HCI_LL_RPA_RESOLUTION);
2104 hci_dev_unlock(hdev);
2109 static u8 hci_cc_le_read_max_data_len(struct hci_dev *hdev, void *data,
2110 struct sk_buff *skb)
2112 struct hci_rp_le_read_max_data_len *rp = data;
2114 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2119 hdev->le_max_tx_len = le16_to_cpu(rp->tx_len);
2120 hdev->le_max_tx_time = le16_to_cpu(rp->tx_time);
2121 hdev->le_max_rx_len = le16_to_cpu(rp->rx_len);
2122 hdev->le_max_rx_time = le16_to_cpu(rp->rx_time);
2127 static u8 hci_cc_write_le_host_supported(struct hci_dev *hdev, void *data,
2128 struct sk_buff *skb)
2130 struct hci_cp_write_le_host_supported *sent;
2131 struct hci_ev_status *rp = data;
2133 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2138 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LE_HOST_SUPPORTED);
2145 hdev->features[1][0] |= LMP_HOST_LE;
2146 hci_dev_set_flag(hdev, HCI_LE_ENABLED);
2148 hdev->features[1][0] &= ~LMP_HOST_LE;
2149 hci_dev_clear_flag(hdev, HCI_LE_ENABLED);
2150 hci_dev_clear_flag(hdev, HCI_ADVERTISING);
2154 hdev->features[1][0] |= LMP_HOST_LE_BREDR;
2156 hdev->features[1][0] &= ~LMP_HOST_LE_BREDR;
2158 hci_dev_unlock(hdev);
2163 static u8 hci_cc_set_adv_param(struct hci_dev *hdev, void *data,
2164 struct sk_buff *skb)
2166 struct hci_cp_le_set_adv_param *cp;
2167 struct hci_ev_status *rp = data;
2169 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2174 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADV_PARAM);
2179 hdev->adv_addr_type = cp->own_address_type;
2180 hci_dev_unlock(hdev);
2185 static u8 hci_cc_set_ext_adv_param(struct hci_dev *hdev, void *data,
2186 struct sk_buff *skb)
2188 struct hci_rp_le_set_ext_adv_params *rp = data;
2189 struct hci_cp_le_set_ext_adv_params *cp;
2190 struct adv_info *adv_instance;
2192 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2197 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_EXT_ADV_PARAMS);
2202 hdev->adv_addr_type = cp->own_addr_type;
2204 /* Store in hdev for instance 0 */
2205 hdev->adv_tx_power = rp->tx_power;
2207 adv_instance = hci_find_adv_instance(hdev, cp->handle);
2209 adv_instance->tx_power = rp->tx_power;
2211 /* Update adv data as tx power is known now */
2212 hci_update_adv_data(hdev, cp->handle);
2214 hci_dev_unlock(hdev);
2219 static u8 hci_cc_read_rssi(struct hci_dev *hdev, void *data,
2220 struct sk_buff *skb)
2222 struct hci_rp_read_rssi *rp = data;
2223 struct hci_conn *conn;
2225 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2232 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
2234 conn->rssi = rp->rssi;
2236 hci_dev_unlock(hdev);
2241 static u8 hci_cc_read_tx_power(struct hci_dev *hdev, void *data,
2242 struct sk_buff *skb)
2244 struct hci_cp_read_tx_power *sent;
2245 struct hci_rp_read_tx_power *rp = data;
2246 struct hci_conn *conn;
2248 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2253 sent = hci_sent_cmd_data(hdev, HCI_OP_READ_TX_POWER);
2259 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
2263 switch (sent->type) {
2265 conn->tx_power = rp->tx_power;
2268 conn->max_tx_power = rp->tx_power;
2273 hci_dev_unlock(hdev);
2277 static u8 hci_cc_write_ssp_debug_mode(struct hci_dev *hdev, void *data,
2278 struct sk_buff *skb)
2280 struct hci_ev_status *rp = data;
2283 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2288 mode = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SSP_DEBUG_MODE);
2290 hdev->ssp_debug_mode = *mode;
2295 static void hci_cs_inquiry(struct hci_dev *hdev, __u8 status)
2297 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2300 hci_conn_check_pending(hdev);
2304 set_bit(HCI_INQUIRY, &hdev->flags);
2307 static void hci_cs_create_conn(struct hci_dev *hdev, __u8 status)
2309 struct hci_cp_create_conn *cp;
2310 struct hci_conn *conn;
2312 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2314 cp = hci_sent_cmd_data(hdev, HCI_OP_CREATE_CONN);
2320 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
2322 bt_dev_dbg(hdev, "bdaddr %pMR hcon %p", &cp->bdaddr, conn);
2325 if (conn && conn->state == BT_CONNECT) {
2326 if (status != 0x0c || conn->attempt > 2) {
2327 conn->state = BT_CLOSED;
2328 hci_connect_cfm(conn, status);
2331 conn->state = BT_CONNECT2;
2335 conn = hci_conn_add(hdev, ACL_LINK, &cp->bdaddr,
2338 bt_dev_err(hdev, "no memory for new connection");
2342 hci_dev_unlock(hdev);
2345 static void hci_cs_add_sco(struct hci_dev *hdev, __u8 status)
2347 struct hci_cp_add_sco *cp;
2348 struct hci_conn *acl;
2349 struct hci_link *link;
2352 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2357 cp = hci_sent_cmd_data(hdev, HCI_OP_ADD_SCO);
2361 handle = __le16_to_cpu(cp->handle);
2363 bt_dev_dbg(hdev, "handle 0x%4.4x", handle);
2367 acl = hci_conn_hash_lookup_handle(hdev, handle);
2369 link = list_first_entry_or_null(&acl->link_list,
2370 struct hci_link, list);
2371 if (link && link->conn) {
2372 link->conn->state = BT_CLOSED;
2374 hci_connect_cfm(link->conn, status);
2375 hci_conn_del(link->conn);
2379 hci_dev_unlock(hdev);
2382 static void hci_cs_auth_requested(struct hci_dev *hdev, __u8 status)
2384 struct hci_cp_auth_requested *cp;
2385 struct hci_conn *conn;
2387 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2392 cp = hci_sent_cmd_data(hdev, HCI_OP_AUTH_REQUESTED);
2398 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2400 if (conn->state == BT_CONFIG) {
2401 hci_connect_cfm(conn, status);
2402 hci_conn_drop(conn);
2406 hci_dev_unlock(hdev);
2409 static void hci_cs_set_conn_encrypt(struct hci_dev *hdev, __u8 status)
2411 struct hci_cp_set_conn_encrypt *cp;
2412 struct hci_conn *conn;
2414 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2419 cp = hci_sent_cmd_data(hdev, HCI_OP_SET_CONN_ENCRYPT);
2425 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2427 if (conn->state == BT_CONFIG) {
2428 hci_connect_cfm(conn, status);
2429 hci_conn_drop(conn);
2433 hci_dev_unlock(hdev);
2436 static int hci_outgoing_auth_needed(struct hci_dev *hdev,
2437 struct hci_conn *conn)
2439 if (conn->state != BT_CONFIG || !conn->out)
2442 if (conn->pending_sec_level == BT_SECURITY_SDP)
2445 /* Only request authentication for SSP connections or non-SSP
2446 * devices with sec_level MEDIUM or HIGH or if MITM protection
2449 if (!hci_conn_ssp_enabled(conn) && !(conn->auth_type & 0x01) &&
2450 conn->pending_sec_level != BT_SECURITY_FIPS &&
2451 conn->pending_sec_level != BT_SECURITY_HIGH &&
2452 conn->pending_sec_level != BT_SECURITY_MEDIUM)
2458 static int hci_resolve_name(struct hci_dev *hdev,
2459 struct inquiry_entry *e)
2461 struct hci_cp_remote_name_req cp;
2463 memset(&cp, 0, sizeof(cp));
2465 bacpy(&cp.bdaddr, &e->data.bdaddr);
2466 cp.pscan_rep_mode = e->data.pscan_rep_mode;
2467 cp.pscan_mode = e->data.pscan_mode;
2468 cp.clock_offset = e->data.clock_offset;
2470 return hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp);
2473 static bool hci_resolve_next_name(struct hci_dev *hdev)
2475 struct discovery_state *discov = &hdev->discovery;
2476 struct inquiry_entry *e;
2478 if (list_empty(&discov->resolve))
2481 /* We should stop if we already spent too much time resolving names. */
2482 if (time_after(jiffies, discov->name_resolve_timeout)) {
2483 bt_dev_warn_ratelimited(hdev, "Name resolve takes too long.");
2487 e = hci_inquiry_cache_lookup_resolve(hdev, BDADDR_ANY, NAME_NEEDED);
2491 if (hci_resolve_name(hdev, e) == 0) {
2492 e->name_state = NAME_PENDING;
2499 static void hci_check_pending_name(struct hci_dev *hdev, struct hci_conn *conn,
2500 bdaddr_t *bdaddr, u8 *name, u8 name_len)
2502 struct discovery_state *discov = &hdev->discovery;
2503 struct inquiry_entry *e;
2505 /* Update the mgmt connected state if necessary. Be careful with
2506 * conn objects that exist but are not (yet) connected however.
2507 * Only those in BT_CONFIG or BT_CONNECTED states can be
2508 * considered connected.
2511 (conn->state == BT_CONFIG || conn->state == BT_CONNECTED) &&
2512 !test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
2513 mgmt_device_connected(hdev, conn, name, name_len);
2515 if (discov->state == DISCOVERY_STOPPED)
2518 if (discov->state == DISCOVERY_STOPPING)
2519 goto discov_complete;
2521 if (discov->state != DISCOVERY_RESOLVING)
2524 e = hci_inquiry_cache_lookup_resolve(hdev, bdaddr, NAME_PENDING);
2525 /* If the device was not found in a list of found devices names of which
2526 * are pending. there is no need to continue resolving a next name as it
2527 * will be done upon receiving another Remote Name Request Complete
2534 e->name_state = name ? NAME_KNOWN : NAME_NOT_KNOWN;
2535 mgmt_remote_name(hdev, bdaddr, ACL_LINK, 0x00, e->data.rssi,
2538 if (hci_resolve_next_name(hdev))
2542 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
2545 static void hci_cs_remote_name_req(struct hci_dev *hdev, __u8 status)
2547 struct hci_cp_remote_name_req *cp;
2548 struct hci_conn *conn;
2550 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2552 /* If successful wait for the name req complete event before
2553 * checking for the need to do authentication */
2557 cp = hci_sent_cmd_data(hdev, HCI_OP_REMOTE_NAME_REQ);
2563 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
2565 if (hci_dev_test_flag(hdev, HCI_MGMT))
2566 hci_check_pending_name(hdev, conn, &cp->bdaddr, NULL, 0);
2571 if (!hci_outgoing_auth_needed(hdev, conn))
2574 if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->flags)) {
2575 struct hci_cp_auth_requested auth_cp;
2577 set_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags);
2579 auth_cp.handle = __cpu_to_le16(conn->handle);
2580 hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED,
2581 sizeof(auth_cp), &auth_cp);
2585 hci_dev_unlock(hdev);
2588 static void hci_cs_read_remote_features(struct hci_dev *hdev, __u8 status)
2590 struct hci_cp_read_remote_features *cp;
2591 struct hci_conn *conn;
2593 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2598 cp = hci_sent_cmd_data(hdev, HCI_OP_READ_REMOTE_FEATURES);
2604 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2606 if (conn->state == BT_CONFIG) {
2607 hci_connect_cfm(conn, status);
2608 hci_conn_drop(conn);
2612 hci_dev_unlock(hdev);
2615 static void hci_cs_read_remote_ext_features(struct hci_dev *hdev, __u8 status)
2617 struct hci_cp_read_remote_ext_features *cp;
2618 struct hci_conn *conn;
2620 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2625 cp = hci_sent_cmd_data(hdev, HCI_OP_READ_REMOTE_EXT_FEATURES);
2631 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2633 if (conn->state == BT_CONFIG) {
2634 hci_connect_cfm(conn, status);
2635 hci_conn_drop(conn);
2639 hci_dev_unlock(hdev);
2642 static void hci_setup_sync_conn_status(struct hci_dev *hdev, __u16 handle,
2645 struct hci_conn *acl;
2646 struct hci_link *link;
2648 bt_dev_dbg(hdev, "handle 0x%4.4x status 0x%2.2x", handle, status);
2652 acl = hci_conn_hash_lookup_handle(hdev, handle);
2654 link = list_first_entry_or_null(&acl->link_list,
2655 struct hci_link, list);
2656 if (link && link->conn) {
2657 link->conn->state = BT_CLOSED;
2659 hci_connect_cfm(link->conn, status);
2660 hci_conn_del(link->conn);
2664 hci_dev_unlock(hdev);
2667 static void hci_cs_setup_sync_conn(struct hci_dev *hdev, __u8 status)
2669 struct hci_cp_setup_sync_conn *cp;
2671 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2676 cp = hci_sent_cmd_data(hdev, HCI_OP_SETUP_SYNC_CONN);
2680 hci_setup_sync_conn_status(hdev, __le16_to_cpu(cp->handle), status);
2683 static void hci_cs_enhanced_setup_sync_conn(struct hci_dev *hdev, __u8 status)
2685 struct hci_cp_enhanced_setup_sync_conn *cp;
2687 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2692 cp = hci_sent_cmd_data(hdev, HCI_OP_ENHANCED_SETUP_SYNC_CONN);
2696 hci_setup_sync_conn_status(hdev, __le16_to_cpu(cp->handle), status);
2699 static void hci_cs_sniff_mode(struct hci_dev *hdev, __u8 status)
2701 struct hci_cp_sniff_mode *cp;
2702 struct hci_conn *conn;
2704 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2709 cp = hci_sent_cmd_data(hdev, HCI_OP_SNIFF_MODE);
2715 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2717 clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->flags);
2719 if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags))
2720 hci_sco_setup(conn, status);
2723 hci_dev_unlock(hdev);
2726 static void hci_cs_exit_sniff_mode(struct hci_dev *hdev, __u8 status)
2728 struct hci_cp_exit_sniff_mode *cp;
2729 struct hci_conn *conn;
2731 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2736 cp = hci_sent_cmd_data(hdev, HCI_OP_EXIT_SNIFF_MODE);
2742 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2744 clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->flags);
2746 if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags))
2747 hci_sco_setup(conn, status);
2750 hci_dev_unlock(hdev);
2753 static void hci_cs_disconnect(struct hci_dev *hdev, u8 status)
2755 struct hci_cp_disconnect *cp;
2756 struct hci_conn_params *params;
2757 struct hci_conn *conn;
2760 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2762 /* Wait for HCI_EV_DISCONN_COMPLETE if status 0x00 and not suspended
2763 * otherwise cleanup the connection immediately.
2765 if (!status && !hdev->suspended)
2768 cp = hci_sent_cmd_data(hdev, HCI_OP_DISCONNECT);
2774 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2779 mgmt_disconnect_failed(hdev, &conn->dst, conn->type,
2780 conn->dst_type, status);
2782 if (conn->type == LE_LINK && conn->role == HCI_ROLE_SLAVE) {
2783 hdev->cur_adv_instance = conn->adv_instance;
2784 hci_enable_advertising(hdev);
2787 /* Inform sockets conn is gone before we delete it */
2788 hci_disconn_cfm(conn, HCI_ERROR_UNSPECIFIED);
2793 mgmt_conn = test_and_clear_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags);
2795 if (conn->type == ACL_LINK) {
2796 if (test_and_clear_bit(HCI_CONN_FLUSH_KEY, &conn->flags))
2797 hci_remove_link_key(hdev, &conn->dst);
2800 params = hci_conn_params_lookup(hdev, &conn->dst, conn->dst_type);
2802 switch (params->auto_connect) {
2803 case HCI_AUTO_CONN_LINK_LOSS:
2804 if (cp->reason != HCI_ERROR_CONNECTION_TIMEOUT)
2808 case HCI_AUTO_CONN_DIRECT:
2809 case HCI_AUTO_CONN_ALWAYS:
2810 hci_pend_le_list_del_init(params);
2811 hci_pend_le_list_add(params, &hdev->pend_le_conns);
2819 mgmt_device_disconnected(hdev, &conn->dst, conn->type, conn->dst_type,
2820 cp->reason, mgmt_conn);
2822 hci_disconn_cfm(conn, cp->reason);
2825 /* If the disconnection failed for any reason, the upper layer
2826 * does not retry to disconnect in current implementation.
2827 * Hence, we need to do some basic cleanup here and re-enable
2828 * advertising if necessary.
2832 hci_dev_unlock(hdev);
2835 static u8 ev_bdaddr_type(struct hci_dev *hdev, u8 type, bool *resolved)
2837 /* When using controller based address resolution, then the new
2838 * address types 0x02 and 0x03 are used. These types need to be
2839 * converted back into either public address or random address type
2842 case ADDR_LE_DEV_PUBLIC_RESOLVED:
2845 return ADDR_LE_DEV_PUBLIC;
2846 case ADDR_LE_DEV_RANDOM_RESOLVED:
2849 return ADDR_LE_DEV_RANDOM;
2857 static void cs_le_create_conn(struct hci_dev *hdev, bdaddr_t *peer_addr,
2858 u8 peer_addr_type, u8 own_address_type,
2861 struct hci_conn *conn;
2863 conn = hci_conn_hash_lookup_le(hdev, peer_addr,
2868 own_address_type = ev_bdaddr_type(hdev, own_address_type, NULL);
2870 /* Store the initiator and responder address information which
2871 * is needed for SMP. These values will not change during the
2872 * lifetime of the connection.
2874 conn->init_addr_type = own_address_type;
2875 if (own_address_type == ADDR_LE_DEV_RANDOM)
2876 bacpy(&conn->init_addr, &hdev->random_addr);
2878 bacpy(&conn->init_addr, &hdev->bdaddr);
2880 conn->resp_addr_type = peer_addr_type;
2881 bacpy(&conn->resp_addr, peer_addr);
2884 static void hci_cs_le_create_conn(struct hci_dev *hdev, u8 status)
2886 struct hci_cp_le_create_conn *cp;
2888 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2890 /* All connection failure handling is taken care of by the
2891 * hci_conn_failed function which is triggered by the HCI
2892 * request completion callbacks used for connecting.
2897 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_CREATE_CONN);
2903 cs_le_create_conn(hdev, &cp->peer_addr, cp->peer_addr_type,
2904 cp->own_address_type, cp->filter_policy);
2906 hci_dev_unlock(hdev);
2909 static void hci_cs_le_ext_create_conn(struct hci_dev *hdev, u8 status)
2911 struct hci_cp_le_ext_create_conn *cp;
2913 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2915 /* All connection failure handling is taken care of by the
2916 * hci_conn_failed function which is triggered by the HCI
2917 * request completion callbacks used for connecting.
2922 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_EXT_CREATE_CONN);
2928 cs_le_create_conn(hdev, &cp->peer_addr, cp->peer_addr_type,
2929 cp->own_addr_type, cp->filter_policy);
2931 hci_dev_unlock(hdev);
2934 static void hci_cs_le_read_remote_features(struct hci_dev *hdev, u8 status)
2936 struct hci_cp_le_read_remote_features *cp;
2937 struct hci_conn *conn;
2939 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2944 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_READ_REMOTE_FEATURES);
2950 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2952 if (conn->state == BT_CONFIG) {
2953 hci_connect_cfm(conn, status);
2954 hci_conn_drop(conn);
2958 hci_dev_unlock(hdev);
2961 static void hci_cs_le_start_enc(struct hci_dev *hdev, u8 status)
2963 struct hci_cp_le_start_enc *cp;
2964 struct hci_conn *conn;
2966 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2973 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_START_ENC);
2977 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2981 if (conn->state != BT_CONNECTED)
2984 hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE);
2985 hci_conn_drop(conn);
2988 hci_dev_unlock(hdev);
2991 static void hci_cs_switch_role(struct hci_dev *hdev, u8 status)
2993 struct hci_cp_switch_role *cp;
2994 struct hci_conn *conn;
2996 BT_DBG("%s status 0x%2.2x", hdev->name, status);
3001 cp = hci_sent_cmd_data(hdev, HCI_OP_SWITCH_ROLE);
3007 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
3009 clear_bit(HCI_CONN_RSWITCH_PEND, &conn->flags);
3011 hci_dev_unlock(hdev);
3014 static void hci_inquiry_complete_evt(struct hci_dev *hdev, void *data,
3015 struct sk_buff *skb)
3017 struct hci_ev_status *ev = data;
3018 struct discovery_state *discov = &hdev->discovery;
3019 struct inquiry_entry *e;
3021 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
3023 hci_conn_check_pending(hdev);
3025 if (!test_and_clear_bit(HCI_INQUIRY, &hdev->flags))
3028 smp_mb__after_atomic(); /* wake_up_bit advises about this barrier */
3029 wake_up_bit(&hdev->flags, HCI_INQUIRY);
3031 if (!hci_dev_test_flag(hdev, HCI_MGMT))
3036 if (discov->state != DISCOVERY_FINDING)
3039 if (list_empty(&discov->resolve)) {
3040 /* When BR/EDR inquiry is active and no LE scanning is in
3041 * progress, then change discovery state to indicate completion.
3043 * When running LE scanning and BR/EDR inquiry simultaneously
3044 * and the LE scan already finished, then change the discovery
3045 * state to indicate completion.
3047 if (!hci_dev_test_flag(hdev, HCI_LE_SCAN) ||
3048 !test_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks))
3049 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
3053 e = hci_inquiry_cache_lookup_resolve(hdev, BDADDR_ANY, NAME_NEEDED);
3054 if (e && hci_resolve_name(hdev, e) == 0) {
3055 e->name_state = NAME_PENDING;
3056 hci_discovery_set_state(hdev, DISCOVERY_RESOLVING);
3057 discov->name_resolve_timeout = jiffies + NAME_RESOLVE_DURATION;
3059 /* When BR/EDR inquiry is active and no LE scanning is in
3060 * progress, then change discovery state to indicate completion.
3062 * When running LE scanning and BR/EDR inquiry simultaneously
3063 * and the LE scan already finished, then change the discovery
3064 * state to indicate completion.
3066 if (!hci_dev_test_flag(hdev, HCI_LE_SCAN) ||
3067 !test_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks))
3068 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
3072 hci_dev_unlock(hdev);
3075 static void hci_inquiry_result_evt(struct hci_dev *hdev, void *edata,
3076 struct sk_buff *skb)
3078 struct hci_ev_inquiry_result *ev = edata;
3079 struct inquiry_data data;
3082 if (!hci_ev_skb_pull(hdev, skb, HCI_EV_INQUIRY_RESULT,
3083 flex_array_size(ev, info, ev->num)))
3086 bt_dev_dbg(hdev, "num %d", ev->num);
3091 if (hci_dev_test_flag(hdev, HCI_PERIODIC_INQ))
3096 for (i = 0; i < ev->num; i++) {
3097 struct inquiry_info *info = &ev->info[i];
3100 bacpy(&data.bdaddr, &info->bdaddr);
3101 data.pscan_rep_mode = info->pscan_rep_mode;
3102 data.pscan_period_mode = info->pscan_period_mode;
3103 data.pscan_mode = info->pscan_mode;
3104 memcpy(data.dev_class, info->dev_class, 3);
3105 data.clock_offset = info->clock_offset;
3106 data.rssi = HCI_RSSI_INVALID;
3107 data.ssp_mode = 0x00;
3109 flags = hci_inquiry_cache_update(hdev, &data, false);
3111 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
3112 info->dev_class, HCI_RSSI_INVALID,
3113 flags, NULL, 0, NULL, 0, 0);
3116 hci_dev_unlock(hdev);
3119 static void hci_conn_complete_evt(struct hci_dev *hdev, void *data,
3120 struct sk_buff *skb)
3122 struct hci_ev_conn_complete *ev = data;
3123 struct hci_conn *conn;
3124 u8 status = ev->status;
3126 bt_dev_dbg(hdev, "status 0x%2.2x", status);
3130 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr);
3132 /* In case of error status and there is no connection pending
3133 * just unlock as there is nothing to cleanup.
3138 /* Connection may not exist if auto-connected. Check the bredr
3139 * allowlist to see if this device is allowed to auto connect.
3140 * If link is an ACL type, create a connection class
3143 * Auto-connect will only occur if the event filter is
3144 * programmed with a given address. Right now, event filter is
3145 * only used during suspend.
3147 if (ev->link_type == ACL_LINK &&
3148 hci_bdaddr_list_lookup_with_flags(&hdev->accept_list,
3151 conn = hci_conn_add(hdev, ev->link_type, &ev->bdaddr,
3154 bt_dev_err(hdev, "no memory for new conn");
3158 if (ev->link_type != SCO_LINK)
3161 conn = hci_conn_hash_lookup_ba(hdev, ESCO_LINK,
3166 conn->type = SCO_LINK;
3170 /* The HCI_Connection_Complete event is only sent once per connection.
3171 * Processing it more than once per connection can corrupt kernel memory.
3173 * As the connection handle is set here for the first time, it indicates
3174 * whether the connection is already set up.
3176 if (conn->handle != HCI_CONN_HANDLE_UNSET) {
3177 bt_dev_err(hdev, "Ignoring HCI_Connection_Complete for existing connection");
3182 conn->handle = __le16_to_cpu(ev->handle);
3183 if (conn->handle > HCI_CONN_HANDLE_MAX) {
3184 bt_dev_err(hdev, "Invalid handle: 0x%4.4x > 0x%4.4x",
3185 conn->handle, HCI_CONN_HANDLE_MAX);
3186 status = HCI_ERROR_INVALID_PARAMETERS;
3190 if (conn->type == ACL_LINK) {
3191 conn->state = BT_CONFIG;
3192 hci_conn_hold(conn);
3194 if (!conn->out && !hci_conn_ssp_enabled(conn) &&
3195 !hci_find_link_key(hdev, &ev->bdaddr))
3196 conn->disc_timeout = HCI_PAIRING_TIMEOUT;
3198 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
3200 conn->state = BT_CONNECTED;
3202 hci_debugfs_create_conn(conn);
3203 hci_conn_add_sysfs(conn);
3205 if (test_bit(HCI_AUTH, &hdev->flags))
3206 set_bit(HCI_CONN_AUTH, &conn->flags);
3208 if (test_bit(HCI_ENCRYPT, &hdev->flags))
3209 set_bit(HCI_CONN_ENCRYPT, &conn->flags);
3211 /* Get remote features */
3212 if (conn->type == ACL_LINK) {
3213 struct hci_cp_read_remote_features cp;
3214 cp.handle = ev->handle;
3215 hci_send_cmd(hdev, HCI_OP_READ_REMOTE_FEATURES,
3218 hci_update_scan(hdev);
3221 /* Set packet type for incoming connection */
3222 if (!conn->out && hdev->hci_ver < BLUETOOTH_VER_2_0) {
3223 struct hci_cp_change_conn_ptype cp;
3224 cp.handle = ev->handle;
3225 cp.pkt_type = cpu_to_le16(conn->pkt_type);
3226 hci_send_cmd(hdev, HCI_OP_CHANGE_CONN_PTYPE, sizeof(cp),
3231 if (conn->type == ACL_LINK)
3232 hci_sco_setup(conn, ev->status);
3236 hci_conn_failed(conn, status);
3237 } else if (ev->link_type == SCO_LINK) {
3238 switch (conn->setting & SCO_AIRMODE_MASK) {
3239 case SCO_AIRMODE_CVSD:
3241 hdev->notify(hdev, HCI_NOTIFY_ENABLE_SCO_CVSD);
3245 hci_connect_cfm(conn, status);
3249 hci_dev_unlock(hdev);
3251 hci_conn_check_pending(hdev);
3254 static void hci_reject_conn(struct hci_dev *hdev, bdaddr_t *bdaddr)
3256 struct hci_cp_reject_conn_req cp;
3258 bacpy(&cp.bdaddr, bdaddr);
3259 cp.reason = HCI_ERROR_REJ_BAD_ADDR;
3260 hci_send_cmd(hdev, HCI_OP_REJECT_CONN_REQ, sizeof(cp), &cp);
3263 static void hci_conn_request_evt(struct hci_dev *hdev, void *data,
3264 struct sk_buff *skb)
3266 struct hci_ev_conn_request *ev = data;
3267 int mask = hdev->link_mode;
3268 struct inquiry_entry *ie;
3269 struct hci_conn *conn;
3272 bt_dev_dbg(hdev, "bdaddr %pMR type 0x%x", &ev->bdaddr, ev->link_type);
3274 mask |= hci_proto_connect_ind(hdev, &ev->bdaddr, ev->link_type,
3277 if (!(mask & HCI_LM_ACCEPT)) {
3278 hci_reject_conn(hdev, &ev->bdaddr);
3284 if (hci_bdaddr_list_lookup(&hdev->reject_list, &ev->bdaddr,
3286 hci_reject_conn(hdev, &ev->bdaddr);
3290 /* Require HCI_CONNECTABLE or an accept list entry to accept the
3291 * connection. These features are only touched through mgmt so
3292 * only do the checks if HCI_MGMT is set.
3294 if (hci_dev_test_flag(hdev, HCI_MGMT) &&
3295 !hci_dev_test_flag(hdev, HCI_CONNECTABLE) &&
3296 !hci_bdaddr_list_lookup_with_flags(&hdev->accept_list, &ev->bdaddr,
3298 hci_reject_conn(hdev, &ev->bdaddr);
3302 /* Connection accepted */
3304 ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
3306 memcpy(ie->data.dev_class, ev->dev_class, 3);
3308 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type,
3311 conn = hci_conn_add(hdev, ev->link_type, &ev->bdaddr,
3314 bt_dev_err(hdev, "no memory for new connection");
3319 memcpy(conn->dev_class, ev->dev_class, 3);
3321 hci_dev_unlock(hdev);
3323 if (ev->link_type == ACL_LINK ||
3324 (!(flags & HCI_PROTO_DEFER) && !lmp_esco_capable(hdev))) {
3325 struct hci_cp_accept_conn_req cp;
3326 conn->state = BT_CONNECT;
3328 bacpy(&cp.bdaddr, &ev->bdaddr);
3330 if (lmp_rswitch_capable(hdev) && (mask & HCI_LM_MASTER))
3331 cp.role = 0x00; /* Become central */
3333 cp.role = 0x01; /* Remain peripheral */
3335 hci_send_cmd(hdev, HCI_OP_ACCEPT_CONN_REQ, sizeof(cp), &cp);
3336 } else if (!(flags & HCI_PROTO_DEFER)) {
3337 struct hci_cp_accept_sync_conn_req cp;
3338 conn->state = BT_CONNECT;
3340 bacpy(&cp.bdaddr, &ev->bdaddr);
3341 cp.pkt_type = cpu_to_le16(conn->pkt_type);
3343 cp.tx_bandwidth = cpu_to_le32(0x00001f40);
3344 cp.rx_bandwidth = cpu_to_le32(0x00001f40);
3345 cp.max_latency = cpu_to_le16(0xffff);
3346 cp.content_format = cpu_to_le16(hdev->voice_setting);
3347 cp.retrans_effort = 0xff;
3349 hci_send_cmd(hdev, HCI_OP_ACCEPT_SYNC_CONN_REQ, sizeof(cp),
3352 conn->state = BT_CONNECT2;
3353 hci_connect_cfm(conn, 0);
3358 hci_dev_unlock(hdev);
3361 static u8 hci_to_mgmt_reason(u8 err)
3364 case HCI_ERROR_CONNECTION_TIMEOUT:
3365 return MGMT_DEV_DISCONN_TIMEOUT;
3366 case HCI_ERROR_REMOTE_USER_TERM:
3367 case HCI_ERROR_REMOTE_LOW_RESOURCES:
3368 case HCI_ERROR_REMOTE_POWER_OFF:
3369 return MGMT_DEV_DISCONN_REMOTE;
3370 case HCI_ERROR_LOCAL_HOST_TERM:
3371 return MGMT_DEV_DISCONN_LOCAL_HOST;
3373 return MGMT_DEV_DISCONN_UNKNOWN;
3377 static void hci_disconn_complete_evt(struct hci_dev *hdev, void *data,
3378 struct sk_buff *skb)
3380 struct hci_ev_disconn_complete *ev = data;
3382 struct hci_conn_params *params;
3383 struct hci_conn *conn;
3384 bool mgmt_connected;
3386 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
3390 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3395 mgmt_disconnect_failed(hdev, &conn->dst, conn->type,
3396 conn->dst_type, ev->status);
3400 conn->state = BT_CLOSED;
3402 mgmt_connected = test_and_clear_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags);
3404 if (test_bit(HCI_CONN_AUTH_FAILURE, &conn->flags))
3405 reason = MGMT_DEV_DISCONN_AUTH_FAILURE;
3407 reason = hci_to_mgmt_reason(ev->reason);
3409 mgmt_device_disconnected(hdev, &conn->dst, conn->type, conn->dst_type,
3410 reason, mgmt_connected);
3412 if (conn->type == ACL_LINK) {
3413 if (test_and_clear_bit(HCI_CONN_FLUSH_KEY, &conn->flags))
3414 hci_remove_link_key(hdev, &conn->dst);
3416 hci_update_scan(hdev);
3419 params = hci_conn_params_lookup(hdev, &conn->dst, conn->dst_type);
3421 switch (params->auto_connect) {
3422 case HCI_AUTO_CONN_LINK_LOSS:
3423 if (ev->reason != HCI_ERROR_CONNECTION_TIMEOUT)
3427 case HCI_AUTO_CONN_DIRECT:
3428 case HCI_AUTO_CONN_ALWAYS:
3429 hci_pend_le_list_del_init(params);
3430 hci_pend_le_list_add(params, &hdev->pend_le_conns);
3431 hci_update_passive_scan(hdev);
3439 hci_disconn_cfm(conn, ev->reason);
3441 /* Re-enable advertising if necessary, since it might
3442 * have been disabled by the connection. From the
3443 * HCI_LE_Set_Advertise_Enable command description in
3444 * the core specification (v4.0):
3445 * "The Controller shall continue advertising until the Host
3446 * issues an LE_Set_Advertise_Enable command with
3447 * Advertising_Enable set to 0x00 (Advertising is disabled)
3448 * or until a connection is created or until the Advertising
3449 * is timed out due to Directed Advertising."
3451 if (conn->type == LE_LINK && conn->role == HCI_ROLE_SLAVE) {
3452 hdev->cur_adv_instance = conn->adv_instance;
3453 hci_enable_advertising(hdev);
3459 hci_dev_unlock(hdev);
3462 static void hci_auth_complete_evt(struct hci_dev *hdev, void *data,
3463 struct sk_buff *skb)
3465 struct hci_ev_auth_complete *ev = data;
3466 struct hci_conn *conn;
3468 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
3472 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3477 clear_bit(HCI_CONN_AUTH_FAILURE, &conn->flags);
3479 if (!hci_conn_ssp_enabled(conn) &&
3480 test_bit(HCI_CONN_REAUTH_PEND, &conn->flags)) {
3481 bt_dev_info(hdev, "re-auth of legacy device is not possible.");
3483 set_bit(HCI_CONN_AUTH, &conn->flags);
3484 conn->sec_level = conn->pending_sec_level;
3487 if (ev->status == HCI_ERROR_PIN_OR_KEY_MISSING)
3488 set_bit(HCI_CONN_AUTH_FAILURE, &conn->flags);
3490 mgmt_auth_failed(conn, ev->status);
3493 clear_bit(HCI_CONN_AUTH_PEND, &conn->flags);
3494 clear_bit(HCI_CONN_REAUTH_PEND, &conn->flags);
3496 if (conn->state == BT_CONFIG) {
3497 if (!ev->status && hci_conn_ssp_enabled(conn)) {
3498 struct hci_cp_set_conn_encrypt cp;
3499 cp.handle = ev->handle;
3501 hci_send_cmd(hdev, HCI_OP_SET_CONN_ENCRYPT, sizeof(cp),
3504 conn->state = BT_CONNECTED;
3505 hci_connect_cfm(conn, ev->status);
3506 hci_conn_drop(conn);
3509 hci_auth_cfm(conn, ev->status);
3511 hci_conn_hold(conn);
3512 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
3513 hci_conn_drop(conn);
3516 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) {
3518 struct hci_cp_set_conn_encrypt cp;
3519 cp.handle = ev->handle;
3521 hci_send_cmd(hdev, HCI_OP_SET_CONN_ENCRYPT, sizeof(cp),
3524 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
3525 hci_encrypt_cfm(conn, ev->status);
3530 hci_dev_unlock(hdev);
3533 static void hci_remote_name_evt(struct hci_dev *hdev, void *data,
3534 struct sk_buff *skb)
3536 struct hci_ev_remote_name *ev = data;
3537 struct hci_conn *conn;
3539 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
3541 hci_conn_check_pending(hdev);
3545 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
3547 if (!hci_dev_test_flag(hdev, HCI_MGMT))
3550 if (ev->status == 0)
3551 hci_check_pending_name(hdev, conn, &ev->bdaddr, ev->name,
3552 strnlen(ev->name, HCI_MAX_NAME_LENGTH));
3554 hci_check_pending_name(hdev, conn, &ev->bdaddr, NULL, 0);
3560 if (!hci_outgoing_auth_needed(hdev, conn))
3563 if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->flags)) {
3564 struct hci_cp_auth_requested cp;
3566 set_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags);
3568 cp.handle = __cpu_to_le16(conn->handle);
3569 hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED, sizeof(cp), &cp);
3573 hci_dev_unlock(hdev);
3576 static void hci_encrypt_change_evt(struct hci_dev *hdev, void *data,
3577 struct sk_buff *skb)
3579 struct hci_ev_encrypt_change *ev = data;
3580 struct hci_conn *conn;
3582 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
3586 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3592 /* Encryption implies authentication */
3593 set_bit(HCI_CONN_AUTH, &conn->flags);
3594 set_bit(HCI_CONN_ENCRYPT, &conn->flags);
3595 conn->sec_level = conn->pending_sec_level;
3597 /* P-256 authentication key implies FIPS */
3598 if (conn->key_type == HCI_LK_AUTH_COMBINATION_P256)
3599 set_bit(HCI_CONN_FIPS, &conn->flags);
3601 if ((conn->type == ACL_LINK && ev->encrypt == 0x02) ||
3602 conn->type == LE_LINK)
3603 set_bit(HCI_CONN_AES_CCM, &conn->flags);
3605 clear_bit(HCI_CONN_ENCRYPT, &conn->flags);
3606 clear_bit(HCI_CONN_AES_CCM, &conn->flags);
3610 /* We should disregard the current RPA and generate a new one
3611 * whenever the encryption procedure fails.
3613 if (ev->status && conn->type == LE_LINK) {
3614 hci_dev_set_flag(hdev, HCI_RPA_EXPIRED);
3615 hci_adv_instances_set_rpa_expired(hdev, true);
3618 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
3620 /* Check link security requirements are met */
3621 if (!hci_conn_check_link_mode(conn))
3622 ev->status = HCI_ERROR_AUTH_FAILURE;
3624 if (ev->status && conn->state == BT_CONNECTED) {
3625 if (ev->status == HCI_ERROR_PIN_OR_KEY_MISSING)
3626 set_bit(HCI_CONN_AUTH_FAILURE, &conn->flags);
3628 /* Notify upper layers so they can cleanup before
3631 hci_encrypt_cfm(conn, ev->status);
3632 hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE);
3633 hci_conn_drop(conn);
3637 /* Try reading the encryption key size for encrypted ACL links */
3638 if (!ev->status && ev->encrypt && conn->type == ACL_LINK) {
3639 struct hci_cp_read_enc_key_size cp;
3641 /* Only send HCI_Read_Encryption_Key_Size if the
3642 * controller really supports it. If it doesn't, assume
3643 * the default size (16).
3645 if (!(hdev->commands[20] & 0x10)) {
3646 conn->enc_key_size = HCI_LINK_KEY_SIZE;
3650 cp.handle = cpu_to_le16(conn->handle);
3651 if (hci_send_cmd(hdev, HCI_OP_READ_ENC_KEY_SIZE,
3653 bt_dev_err(hdev, "sending read key size failed");
3654 conn->enc_key_size = HCI_LINK_KEY_SIZE;
3661 /* Set the default Authenticated Payload Timeout after
3662 * an LE Link is established. As per Core Spec v5.0, Vol 2, Part B
3663 * Section 3.3, the HCI command WRITE_AUTH_PAYLOAD_TIMEOUT should be
3664 * sent when the link is active and Encryption is enabled, the conn
3665 * type can be either LE or ACL and controller must support LMP Ping.
3666 * Ensure for AES-CCM encryption as well.
3668 if (test_bit(HCI_CONN_ENCRYPT, &conn->flags) &&
3669 test_bit(HCI_CONN_AES_CCM, &conn->flags) &&
3670 ((conn->type == ACL_LINK && lmp_ping_capable(hdev)) ||
3671 (conn->type == LE_LINK && (hdev->le_features[0] & HCI_LE_PING)))) {
3672 struct hci_cp_write_auth_payload_to cp;
3674 cp.handle = cpu_to_le16(conn->handle);
3675 cp.timeout = cpu_to_le16(hdev->auth_payload_timeout);
3676 if (hci_send_cmd(conn->hdev, HCI_OP_WRITE_AUTH_PAYLOAD_TO,
3678 bt_dev_err(hdev, "write auth payload timeout failed");
3686 hci_encrypt_cfm(conn, ev->status);
3689 hci_dev_unlock(hdev);
3692 static void hci_change_link_key_complete_evt(struct hci_dev *hdev, void *data,
3693 struct sk_buff *skb)
3695 struct hci_ev_change_link_key_complete *ev = data;
3696 struct hci_conn *conn;
3698 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
3702 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3705 set_bit(HCI_CONN_SECURE, &conn->flags);
3707 clear_bit(HCI_CONN_AUTH_PEND, &conn->flags);
3709 hci_key_change_cfm(conn, ev->status);
3712 hci_dev_unlock(hdev);
3715 static void hci_remote_features_evt(struct hci_dev *hdev, void *data,
3716 struct sk_buff *skb)
3718 struct hci_ev_remote_features *ev = data;
3719 struct hci_conn *conn;
3721 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
3725 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3730 memcpy(conn->features[0], ev->features, 8);
3732 if (conn->state != BT_CONFIG)
3735 if (!ev->status && lmp_ext_feat_capable(hdev) &&
3736 lmp_ext_feat_capable(conn)) {
3737 struct hci_cp_read_remote_ext_features cp;
3738 cp.handle = ev->handle;
3740 hci_send_cmd(hdev, HCI_OP_READ_REMOTE_EXT_FEATURES,
3745 if (!ev->status && !test_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags)) {
3746 struct hci_cp_remote_name_req cp;
3747 memset(&cp, 0, sizeof(cp));
3748 bacpy(&cp.bdaddr, &conn->dst);
3749 cp.pscan_rep_mode = 0x02;
3750 hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp);
3751 } else if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
3752 mgmt_device_connected(hdev, conn, NULL, 0);
3754 if (!hci_outgoing_auth_needed(hdev, conn)) {
3755 conn->state = BT_CONNECTED;
3756 hci_connect_cfm(conn, ev->status);
3757 hci_conn_drop(conn);
3761 hci_dev_unlock(hdev);
3764 static inline void handle_cmd_cnt_and_timer(struct hci_dev *hdev, u8 ncmd)
3766 cancel_delayed_work(&hdev->cmd_timer);
3769 if (!test_bit(HCI_RESET, &hdev->flags)) {
3771 cancel_delayed_work(&hdev->ncmd_timer);
3772 atomic_set(&hdev->cmd_cnt, 1);
3774 if (!hci_dev_test_flag(hdev, HCI_CMD_DRAIN_WORKQUEUE))
3775 queue_delayed_work(hdev->workqueue, &hdev->ncmd_timer,
3782 static u8 hci_cc_le_read_buffer_size_v2(struct hci_dev *hdev, void *data,
3783 struct sk_buff *skb)
3785 struct hci_rp_le_read_buffer_size_v2 *rp = data;
3787 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
3792 hdev->le_mtu = __le16_to_cpu(rp->acl_mtu);
3793 hdev->le_pkts = rp->acl_max_pkt;
3794 hdev->iso_mtu = __le16_to_cpu(rp->iso_mtu);
3795 hdev->iso_pkts = rp->iso_max_pkt;
3797 hdev->le_cnt = hdev->le_pkts;
3798 hdev->iso_cnt = hdev->iso_pkts;
3800 BT_DBG("%s acl mtu %d:%d iso mtu %d:%d", hdev->name, hdev->acl_mtu,
3801 hdev->acl_pkts, hdev->iso_mtu, hdev->iso_pkts);
3806 static u8 hci_cc_le_set_cig_params(struct hci_dev *hdev, void *data,
3807 struct sk_buff *skb)
3809 struct hci_rp_le_set_cig_params *rp = data;
3810 struct hci_cp_le_set_cig_params *cp;
3811 struct hci_conn *conn;
3812 u8 status = rp->status;
3815 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
3817 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_CIG_PARAMS);
3818 if (!rp->status && (!cp || rp->num_handles != cp->num_cis ||
3819 rp->cig_id != cp->cig_id)) {
3820 bt_dev_err(hdev, "unexpected Set CIG Parameters response data");
3821 status = HCI_ERROR_UNSPECIFIED;
3827 while ((conn = hci_conn_hash_lookup_cig(hdev, rp->cig_id))) {
3828 conn->state = BT_CLOSED;
3829 hci_connect_cfm(conn, status);
3835 /* BLUETOOTH CORE SPECIFICATION Version 5.3 | Vol 4, Part E page 2553
3837 * If the Status return parameter is zero, then the Controller shall
3838 * set the Connection_Handle arrayed return parameter to the connection
3839 * handle(s) corresponding to the CIS configurations specified in
3840 * the CIS_IDs command parameter, in the same order.
3842 for (i = 0; i < rp->num_handles; ++i) {
3843 conn = hci_conn_hash_lookup_cis(hdev, NULL, 0, rp->cig_id,
3845 if (!conn || !bacmp(&conn->dst, BDADDR_ANY))
3848 if (conn->state != BT_BOUND && conn->state != BT_CONNECT)
3851 conn->handle = __le16_to_cpu(rp->handle[i]);
3853 bt_dev_dbg(hdev, "%p handle 0x%4.4x parent %p", conn,
3854 conn->handle, conn->parent);
3856 /* Create CIS if LE is already connected */
3857 if (conn->parent && conn->parent->state == BT_CONNECTED)
3858 hci_le_create_cis(conn);
3862 hci_dev_unlock(hdev);
3867 static u8 hci_cc_le_setup_iso_path(struct hci_dev *hdev, void *data,
3868 struct sk_buff *skb)
3870 struct hci_rp_le_setup_iso_path *rp = data;
3871 struct hci_cp_le_setup_iso_path *cp;
3872 struct hci_conn *conn;
3874 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
3876 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SETUP_ISO_PATH);
3882 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
3887 hci_connect_cfm(conn, rp->status);
3892 switch (cp->direction) {
3893 /* Input (Host to Controller) */
3895 /* Only confirm connection if output only */
3896 if (conn->iso_qos.ucast.out.sdu && !conn->iso_qos.ucast.in.sdu)
3897 hci_connect_cfm(conn, rp->status);
3899 /* Output (Controller to Host) */
3901 /* Confirm connection since conn->iso_qos is always configured
3904 hci_connect_cfm(conn, rp->status);
3909 hci_dev_unlock(hdev);
3913 static void hci_cs_le_create_big(struct hci_dev *hdev, u8 status)
3915 bt_dev_dbg(hdev, "status 0x%2.2x", status);
3918 static u8 hci_cc_set_per_adv_param(struct hci_dev *hdev, void *data,
3919 struct sk_buff *skb)
3921 struct hci_ev_status *rp = data;
3922 struct hci_cp_le_set_per_adv_params *cp;
3924 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
3929 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_PER_ADV_PARAMS);
3933 /* TODO: set the conn state */
3937 static u8 hci_cc_le_set_per_adv_enable(struct hci_dev *hdev, void *data,
3938 struct sk_buff *skb)
3940 struct hci_ev_status *rp = data;
3943 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
3948 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_PER_ADV_ENABLE);
3955 hci_dev_set_flag(hdev, HCI_LE_PER_ADV);
3957 hci_dev_clear_flag(hdev, HCI_LE_PER_ADV);
3959 hci_dev_unlock(hdev);
3964 #define HCI_CC_VL(_op, _func, _min, _max) \
3972 #define HCI_CC(_op, _func, _len) \
3973 HCI_CC_VL(_op, _func, _len, _len)
3975 #define HCI_CC_STATUS(_op, _func) \
3976 HCI_CC(_op, _func, sizeof(struct hci_ev_status))
3978 static const struct hci_cc {
3980 u8 (*func)(struct hci_dev *hdev, void *data, struct sk_buff *skb);
3983 } hci_cc_table[] = {
3984 HCI_CC_STATUS(HCI_OP_INQUIRY_CANCEL, hci_cc_inquiry_cancel),
3985 HCI_CC_STATUS(HCI_OP_PERIODIC_INQ, hci_cc_periodic_inq),
3986 HCI_CC_STATUS(HCI_OP_EXIT_PERIODIC_INQ, hci_cc_exit_periodic_inq),
3987 HCI_CC_STATUS(HCI_OP_REMOTE_NAME_REQ_CANCEL,
3988 hci_cc_remote_name_req_cancel),
3989 HCI_CC(HCI_OP_ROLE_DISCOVERY, hci_cc_role_discovery,
3990 sizeof(struct hci_rp_role_discovery)),
3991 HCI_CC(HCI_OP_READ_LINK_POLICY, hci_cc_read_link_policy,
3992 sizeof(struct hci_rp_read_link_policy)),
3993 HCI_CC(HCI_OP_WRITE_LINK_POLICY, hci_cc_write_link_policy,
3994 sizeof(struct hci_rp_write_link_policy)),
3995 HCI_CC(HCI_OP_READ_DEF_LINK_POLICY, hci_cc_read_def_link_policy,
3996 sizeof(struct hci_rp_read_def_link_policy)),
3997 HCI_CC_STATUS(HCI_OP_WRITE_DEF_LINK_POLICY,
3998 hci_cc_write_def_link_policy),
3999 HCI_CC_STATUS(HCI_OP_RESET, hci_cc_reset),
4000 HCI_CC(HCI_OP_READ_STORED_LINK_KEY, hci_cc_read_stored_link_key,
4001 sizeof(struct hci_rp_read_stored_link_key)),
4002 HCI_CC(HCI_OP_DELETE_STORED_LINK_KEY, hci_cc_delete_stored_link_key,
4003 sizeof(struct hci_rp_delete_stored_link_key)),
4004 HCI_CC_STATUS(HCI_OP_WRITE_LOCAL_NAME, hci_cc_write_local_name),
4005 HCI_CC(HCI_OP_READ_LOCAL_NAME, hci_cc_read_local_name,
4006 sizeof(struct hci_rp_read_local_name)),
4007 HCI_CC_STATUS(HCI_OP_WRITE_AUTH_ENABLE, hci_cc_write_auth_enable),
4008 HCI_CC_STATUS(HCI_OP_WRITE_ENCRYPT_MODE, hci_cc_write_encrypt_mode),
4009 HCI_CC_STATUS(HCI_OP_WRITE_SCAN_ENABLE, hci_cc_write_scan_enable),
4010 HCI_CC_STATUS(HCI_OP_SET_EVENT_FLT, hci_cc_set_event_filter),
4011 HCI_CC(HCI_OP_READ_CLASS_OF_DEV, hci_cc_read_class_of_dev,
4012 sizeof(struct hci_rp_read_class_of_dev)),
4013 HCI_CC_STATUS(HCI_OP_WRITE_CLASS_OF_DEV, hci_cc_write_class_of_dev),
4014 HCI_CC(HCI_OP_READ_VOICE_SETTING, hci_cc_read_voice_setting,
4015 sizeof(struct hci_rp_read_voice_setting)),
4016 HCI_CC_STATUS(HCI_OP_WRITE_VOICE_SETTING, hci_cc_write_voice_setting),
4017 HCI_CC(HCI_OP_READ_NUM_SUPPORTED_IAC, hci_cc_read_num_supported_iac,
4018 sizeof(struct hci_rp_read_num_supported_iac)),
4019 HCI_CC_STATUS(HCI_OP_WRITE_SSP_MODE, hci_cc_write_ssp_mode),
4020 HCI_CC_STATUS(HCI_OP_WRITE_SC_SUPPORT, hci_cc_write_sc_support),
4021 HCI_CC(HCI_OP_READ_AUTH_PAYLOAD_TO, hci_cc_read_auth_payload_timeout,
4022 sizeof(struct hci_rp_read_auth_payload_to)),
4023 HCI_CC(HCI_OP_WRITE_AUTH_PAYLOAD_TO, hci_cc_write_auth_payload_timeout,
4024 sizeof(struct hci_rp_write_auth_payload_to)),
4025 HCI_CC(HCI_OP_READ_LOCAL_VERSION, hci_cc_read_local_version,
4026 sizeof(struct hci_rp_read_local_version)),
4027 HCI_CC(HCI_OP_READ_LOCAL_COMMANDS, hci_cc_read_local_commands,
4028 sizeof(struct hci_rp_read_local_commands)),
4029 HCI_CC(HCI_OP_READ_LOCAL_FEATURES, hci_cc_read_local_features,
4030 sizeof(struct hci_rp_read_local_features)),
4031 HCI_CC(HCI_OP_READ_LOCAL_EXT_FEATURES, hci_cc_read_local_ext_features,
4032 sizeof(struct hci_rp_read_local_ext_features)),
4033 HCI_CC(HCI_OP_READ_BUFFER_SIZE, hci_cc_read_buffer_size,
4034 sizeof(struct hci_rp_read_buffer_size)),
4035 HCI_CC(HCI_OP_READ_BD_ADDR, hci_cc_read_bd_addr,
4036 sizeof(struct hci_rp_read_bd_addr)),
4037 HCI_CC(HCI_OP_READ_LOCAL_PAIRING_OPTS, hci_cc_read_local_pairing_opts,
4038 sizeof(struct hci_rp_read_local_pairing_opts)),
4039 HCI_CC(HCI_OP_READ_PAGE_SCAN_ACTIVITY, hci_cc_read_page_scan_activity,
4040 sizeof(struct hci_rp_read_page_scan_activity)),
4041 HCI_CC_STATUS(HCI_OP_WRITE_PAGE_SCAN_ACTIVITY,
4042 hci_cc_write_page_scan_activity),
4043 HCI_CC(HCI_OP_READ_PAGE_SCAN_TYPE, hci_cc_read_page_scan_type,
4044 sizeof(struct hci_rp_read_page_scan_type)),
4045 HCI_CC_STATUS(HCI_OP_WRITE_PAGE_SCAN_TYPE, hci_cc_write_page_scan_type),
4046 HCI_CC(HCI_OP_READ_DATA_BLOCK_SIZE, hci_cc_read_data_block_size,
4047 sizeof(struct hci_rp_read_data_block_size)),
4048 HCI_CC(HCI_OP_READ_FLOW_CONTROL_MODE, hci_cc_read_flow_control_mode,
4049 sizeof(struct hci_rp_read_flow_control_mode)),
4050 HCI_CC(HCI_OP_READ_LOCAL_AMP_INFO, hci_cc_read_local_amp_info,
4051 sizeof(struct hci_rp_read_local_amp_info)),
4052 HCI_CC(HCI_OP_READ_CLOCK, hci_cc_read_clock,
4053 sizeof(struct hci_rp_read_clock)),
4054 HCI_CC(HCI_OP_READ_ENC_KEY_SIZE, hci_cc_read_enc_key_size,
4055 sizeof(struct hci_rp_read_enc_key_size)),
4056 HCI_CC(HCI_OP_READ_INQ_RSP_TX_POWER, hci_cc_read_inq_rsp_tx_power,
4057 sizeof(struct hci_rp_read_inq_rsp_tx_power)),
4058 HCI_CC(HCI_OP_READ_DEF_ERR_DATA_REPORTING,
4059 hci_cc_read_def_err_data_reporting,
4060 sizeof(struct hci_rp_read_def_err_data_reporting)),
4061 HCI_CC_STATUS(HCI_OP_WRITE_DEF_ERR_DATA_REPORTING,
4062 hci_cc_write_def_err_data_reporting),
4063 HCI_CC(HCI_OP_PIN_CODE_REPLY, hci_cc_pin_code_reply,
4064 sizeof(struct hci_rp_pin_code_reply)),
4065 HCI_CC(HCI_OP_PIN_CODE_NEG_REPLY, hci_cc_pin_code_neg_reply,
4066 sizeof(struct hci_rp_pin_code_neg_reply)),
4067 HCI_CC(HCI_OP_READ_LOCAL_OOB_DATA, hci_cc_read_local_oob_data,
4068 sizeof(struct hci_rp_read_local_oob_data)),
4069 HCI_CC(HCI_OP_READ_LOCAL_OOB_EXT_DATA, hci_cc_read_local_oob_ext_data,
4070 sizeof(struct hci_rp_read_local_oob_ext_data)),
4071 HCI_CC(HCI_OP_LE_READ_BUFFER_SIZE, hci_cc_le_read_buffer_size,
4072 sizeof(struct hci_rp_le_read_buffer_size)),
4073 HCI_CC(HCI_OP_LE_READ_LOCAL_FEATURES, hci_cc_le_read_local_features,
4074 sizeof(struct hci_rp_le_read_local_features)),
4075 HCI_CC(HCI_OP_LE_READ_ADV_TX_POWER, hci_cc_le_read_adv_tx_power,
4076 sizeof(struct hci_rp_le_read_adv_tx_power)),
4077 HCI_CC(HCI_OP_USER_CONFIRM_REPLY, hci_cc_user_confirm_reply,
4078 sizeof(struct hci_rp_user_confirm_reply)),
4079 HCI_CC(HCI_OP_USER_CONFIRM_NEG_REPLY, hci_cc_user_confirm_neg_reply,
4080 sizeof(struct hci_rp_user_confirm_reply)),
4081 HCI_CC(HCI_OP_USER_PASSKEY_REPLY, hci_cc_user_passkey_reply,
4082 sizeof(struct hci_rp_user_confirm_reply)),
4083 HCI_CC(HCI_OP_USER_PASSKEY_NEG_REPLY, hci_cc_user_passkey_neg_reply,
4084 sizeof(struct hci_rp_user_confirm_reply)),
4085 HCI_CC_STATUS(HCI_OP_LE_SET_RANDOM_ADDR, hci_cc_le_set_random_addr),
4086 HCI_CC_STATUS(HCI_OP_LE_SET_ADV_ENABLE, hci_cc_le_set_adv_enable),
4087 HCI_CC_STATUS(HCI_OP_LE_SET_SCAN_PARAM, hci_cc_le_set_scan_param),
4088 HCI_CC_STATUS(HCI_OP_LE_SET_SCAN_ENABLE, hci_cc_le_set_scan_enable),
4089 HCI_CC(HCI_OP_LE_READ_ACCEPT_LIST_SIZE,
4090 hci_cc_le_read_accept_list_size,
4091 sizeof(struct hci_rp_le_read_accept_list_size)),
4092 HCI_CC_STATUS(HCI_OP_LE_CLEAR_ACCEPT_LIST, hci_cc_le_clear_accept_list),
4093 HCI_CC_STATUS(HCI_OP_LE_ADD_TO_ACCEPT_LIST,
4094 hci_cc_le_add_to_accept_list),
4095 HCI_CC_STATUS(HCI_OP_LE_DEL_FROM_ACCEPT_LIST,
4096 hci_cc_le_del_from_accept_list),
4097 HCI_CC(HCI_OP_LE_READ_SUPPORTED_STATES, hci_cc_le_read_supported_states,
4098 sizeof(struct hci_rp_le_read_supported_states)),
4099 HCI_CC(HCI_OP_LE_READ_DEF_DATA_LEN, hci_cc_le_read_def_data_len,
4100 sizeof(struct hci_rp_le_read_def_data_len)),
4101 HCI_CC_STATUS(HCI_OP_LE_WRITE_DEF_DATA_LEN,
4102 hci_cc_le_write_def_data_len),
4103 HCI_CC_STATUS(HCI_OP_LE_ADD_TO_RESOLV_LIST,
4104 hci_cc_le_add_to_resolv_list),
4105 HCI_CC_STATUS(HCI_OP_LE_DEL_FROM_RESOLV_LIST,
4106 hci_cc_le_del_from_resolv_list),
4107 HCI_CC_STATUS(HCI_OP_LE_CLEAR_RESOLV_LIST,
4108 hci_cc_le_clear_resolv_list),
4109 HCI_CC(HCI_OP_LE_READ_RESOLV_LIST_SIZE, hci_cc_le_read_resolv_list_size,
4110 sizeof(struct hci_rp_le_read_resolv_list_size)),
4111 HCI_CC_STATUS(HCI_OP_LE_SET_ADDR_RESOLV_ENABLE,
4112 hci_cc_le_set_addr_resolution_enable),
4113 HCI_CC(HCI_OP_LE_READ_MAX_DATA_LEN, hci_cc_le_read_max_data_len,
4114 sizeof(struct hci_rp_le_read_max_data_len)),
4115 HCI_CC_STATUS(HCI_OP_WRITE_LE_HOST_SUPPORTED,
4116 hci_cc_write_le_host_supported),
4117 HCI_CC_STATUS(HCI_OP_LE_SET_ADV_PARAM, hci_cc_set_adv_param),
4118 HCI_CC(HCI_OP_READ_RSSI, hci_cc_read_rssi,
4119 sizeof(struct hci_rp_read_rssi)),
4120 HCI_CC(HCI_OP_READ_TX_POWER, hci_cc_read_tx_power,
4121 sizeof(struct hci_rp_read_tx_power)),
4122 HCI_CC_STATUS(HCI_OP_WRITE_SSP_DEBUG_MODE, hci_cc_write_ssp_debug_mode),
4123 HCI_CC_STATUS(HCI_OP_LE_SET_EXT_SCAN_PARAMS,
4124 hci_cc_le_set_ext_scan_param),
4125 HCI_CC_STATUS(HCI_OP_LE_SET_EXT_SCAN_ENABLE,
4126 hci_cc_le_set_ext_scan_enable),
4127 HCI_CC_STATUS(HCI_OP_LE_SET_DEFAULT_PHY, hci_cc_le_set_default_phy),
4128 HCI_CC(HCI_OP_LE_READ_NUM_SUPPORTED_ADV_SETS,
4129 hci_cc_le_read_num_adv_sets,
4130 sizeof(struct hci_rp_le_read_num_supported_adv_sets)),
4131 HCI_CC(HCI_OP_LE_SET_EXT_ADV_PARAMS, hci_cc_set_ext_adv_param,
4132 sizeof(struct hci_rp_le_set_ext_adv_params)),
4133 HCI_CC_STATUS(HCI_OP_LE_SET_EXT_ADV_ENABLE,
4134 hci_cc_le_set_ext_adv_enable),
4135 HCI_CC_STATUS(HCI_OP_LE_SET_ADV_SET_RAND_ADDR,
4136 hci_cc_le_set_adv_set_random_addr),
4137 HCI_CC_STATUS(HCI_OP_LE_REMOVE_ADV_SET, hci_cc_le_remove_adv_set),
4138 HCI_CC_STATUS(HCI_OP_LE_CLEAR_ADV_SETS, hci_cc_le_clear_adv_sets),
4139 HCI_CC_STATUS(HCI_OP_LE_SET_PER_ADV_PARAMS, hci_cc_set_per_adv_param),
4140 HCI_CC_STATUS(HCI_OP_LE_SET_PER_ADV_ENABLE,
4141 hci_cc_le_set_per_adv_enable),
4142 HCI_CC(HCI_OP_LE_READ_TRANSMIT_POWER, hci_cc_le_read_transmit_power,
4143 sizeof(struct hci_rp_le_read_transmit_power)),
4144 HCI_CC_STATUS(HCI_OP_LE_SET_PRIVACY_MODE, hci_cc_le_set_privacy_mode),
4145 HCI_CC(HCI_OP_LE_READ_BUFFER_SIZE_V2, hci_cc_le_read_buffer_size_v2,
4146 sizeof(struct hci_rp_le_read_buffer_size_v2)),
4147 HCI_CC_VL(HCI_OP_LE_SET_CIG_PARAMS, hci_cc_le_set_cig_params,
4148 sizeof(struct hci_rp_le_set_cig_params), HCI_MAX_EVENT_SIZE),
4149 HCI_CC(HCI_OP_LE_SETUP_ISO_PATH, hci_cc_le_setup_iso_path,
4150 sizeof(struct hci_rp_le_setup_iso_path)),
4153 static u8 hci_cc_func(struct hci_dev *hdev, const struct hci_cc *cc,
4154 struct sk_buff *skb)
4158 if (skb->len < cc->min_len) {
4159 bt_dev_err(hdev, "unexpected cc 0x%4.4x length: %u < %u",
4160 cc->op, skb->len, cc->min_len);
4161 return HCI_ERROR_UNSPECIFIED;
4164 /* Just warn if the length is over max_len size it still be possible to
4165 * partially parse the cc so leave to callback to decide if that is
4168 if (skb->len > cc->max_len)
4169 bt_dev_warn(hdev, "unexpected cc 0x%4.4x length: %u > %u",
4170 cc->op, skb->len, cc->max_len);
4172 data = hci_cc_skb_pull(hdev, skb, cc->op, cc->min_len);
4174 return HCI_ERROR_UNSPECIFIED;
4176 return cc->func(hdev, data, skb);
4179 static void hci_cmd_complete_evt(struct hci_dev *hdev, void *data,
4180 struct sk_buff *skb, u16 *opcode, u8 *status,
4181 hci_req_complete_t *req_complete,
4182 hci_req_complete_skb_t *req_complete_skb)
4184 struct hci_ev_cmd_complete *ev = data;
4187 *opcode = __le16_to_cpu(ev->opcode);
4189 bt_dev_dbg(hdev, "opcode 0x%4.4x", *opcode);
4191 for (i = 0; i < ARRAY_SIZE(hci_cc_table); i++) {
4192 if (hci_cc_table[i].op == *opcode) {
4193 *status = hci_cc_func(hdev, &hci_cc_table[i], skb);
4198 if (i == ARRAY_SIZE(hci_cc_table)) {
4199 /* Unknown opcode, assume byte 0 contains the status, so
4200 * that e.g. __hci_cmd_sync() properly returns errors
4201 * for vendor specific commands send by HCI drivers.
4202 * If a vendor doesn't actually follow this convention we may
4203 * need to introduce a vendor CC table in order to properly set
4206 *status = skb->data[0];
4209 handle_cmd_cnt_and_timer(hdev, ev->ncmd);
4211 hci_req_cmd_complete(hdev, *opcode, *status, req_complete,
4214 if (hci_dev_test_flag(hdev, HCI_CMD_PENDING)) {
4216 "unexpected event for opcode 0x%4.4x", *opcode);
4220 if (atomic_read(&hdev->cmd_cnt) && !skb_queue_empty(&hdev->cmd_q))
4221 queue_work(hdev->workqueue, &hdev->cmd_work);
4224 static void hci_cs_le_create_cis(struct hci_dev *hdev, u8 status)
4226 struct hci_cp_le_create_cis *cp;
4229 bt_dev_dbg(hdev, "status 0x%2.2x", status);
4234 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_CREATE_CIS);
4240 /* Remove connection if command failed */
4241 for (i = 0; cp->num_cis; cp->num_cis--, i++) {
4242 struct hci_conn *conn;
4245 handle = __le16_to_cpu(cp->cis[i].cis_handle);
4247 conn = hci_conn_hash_lookup_handle(hdev, handle);
4249 conn->state = BT_CLOSED;
4250 hci_connect_cfm(conn, status);
4255 hci_dev_unlock(hdev);
4258 #define HCI_CS(_op, _func) \
4264 static const struct hci_cs {
4266 void (*func)(struct hci_dev *hdev, __u8 status);
4267 } hci_cs_table[] = {
4268 HCI_CS(HCI_OP_INQUIRY, hci_cs_inquiry),
4269 HCI_CS(HCI_OP_CREATE_CONN, hci_cs_create_conn),
4270 HCI_CS(HCI_OP_DISCONNECT, hci_cs_disconnect),
4271 HCI_CS(HCI_OP_ADD_SCO, hci_cs_add_sco),
4272 HCI_CS(HCI_OP_AUTH_REQUESTED, hci_cs_auth_requested),
4273 HCI_CS(HCI_OP_SET_CONN_ENCRYPT, hci_cs_set_conn_encrypt),
4274 HCI_CS(HCI_OP_REMOTE_NAME_REQ, hci_cs_remote_name_req),
4275 HCI_CS(HCI_OP_READ_REMOTE_FEATURES, hci_cs_read_remote_features),
4276 HCI_CS(HCI_OP_READ_REMOTE_EXT_FEATURES,
4277 hci_cs_read_remote_ext_features),
4278 HCI_CS(HCI_OP_SETUP_SYNC_CONN, hci_cs_setup_sync_conn),
4279 HCI_CS(HCI_OP_ENHANCED_SETUP_SYNC_CONN,
4280 hci_cs_enhanced_setup_sync_conn),
4281 HCI_CS(HCI_OP_SNIFF_MODE, hci_cs_sniff_mode),
4282 HCI_CS(HCI_OP_EXIT_SNIFF_MODE, hci_cs_exit_sniff_mode),
4283 HCI_CS(HCI_OP_SWITCH_ROLE, hci_cs_switch_role),
4284 HCI_CS(HCI_OP_LE_CREATE_CONN, hci_cs_le_create_conn),
4285 HCI_CS(HCI_OP_LE_READ_REMOTE_FEATURES, hci_cs_le_read_remote_features),
4286 HCI_CS(HCI_OP_LE_START_ENC, hci_cs_le_start_enc),
4287 HCI_CS(HCI_OP_LE_EXT_CREATE_CONN, hci_cs_le_ext_create_conn),
4288 HCI_CS(HCI_OP_LE_CREATE_CIS, hci_cs_le_create_cis),
4289 HCI_CS(HCI_OP_LE_CREATE_BIG, hci_cs_le_create_big),
4292 static void hci_cmd_status_evt(struct hci_dev *hdev, void *data,
4293 struct sk_buff *skb, u16 *opcode, u8 *status,
4294 hci_req_complete_t *req_complete,
4295 hci_req_complete_skb_t *req_complete_skb)
4297 struct hci_ev_cmd_status *ev = data;
4300 *opcode = __le16_to_cpu(ev->opcode);
4301 *status = ev->status;
4303 bt_dev_dbg(hdev, "opcode 0x%4.4x", *opcode);
4305 for (i = 0; i < ARRAY_SIZE(hci_cs_table); i++) {
4306 if (hci_cs_table[i].op == *opcode) {
4307 hci_cs_table[i].func(hdev, ev->status);
4312 handle_cmd_cnt_and_timer(hdev, ev->ncmd);
4314 /* Indicate request completion if the command failed. Also, if
4315 * we're not waiting for a special event and we get a success
4316 * command status we should try to flag the request as completed
4317 * (since for this kind of commands there will not be a command
4320 if (ev->status || (hdev->sent_cmd && !hci_skb_event(hdev->sent_cmd))) {
4321 hci_req_cmd_complete(hdev, *opcode, ev->status, req_complete,
4323 if (hci_dev_test_flag(hdev, HCI_CMD_PENDING)) {
4324 bt_dev_err(hdev, "unexpected event for opcode 0x%4.4x",
4330 if (atomic_read(&hdev->cmd_cnt) && !skb_queue_empty(&hdev->cmd_q))
4331 queue_work(hdev->workqueue, &hdev->cmd_work);
4334 static void hci_hardware_error_evt(struct hci_dev *hdev, void *data,
4335 struct sk_buff *skb)
4337 struct hci_ev_hardware_error *ev = data;
4339 bt_dev_dbg(hdev, "code 0x%2.2x", ev->code);
4341 hdev->hw_error_code = ev->code;
4343 queue_work(hdev->req_workqueue, &hdev->error_reset);
4346 static void hci_role_change_evt(struct hci_dev *hdev, void *data,
4347 struct sk_buff *skb)
4349 struct hci_ev_role_change *ev = data;
4350 struct hci_conn *conn;
4352 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
4356 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
4359 conn->role = ev->role;
4361 clear_bit(HCI_CONN_RSWITCH_PEND, &conn->flags);
4363 hci_role_switch_cfm(conn, ev->status, ev->role);
4366 hci_dev_unlock(hdev);
4369 static void hci_num_comp_pkts_evt(struct hci_dev *hdev, void *data,
4370 struct sk_buff *skb)
4372 struct hci_ev_num_comp_pkts *ev = data;
4375 if (!hci_ev_skb_pull(hdev, skb, HCI_EV_NUM_COMP_PKTS,
4376 flex_array_size(ev, handles, ev->num)))
4379 if (hdev->flow_ctl_mode != HCI_FLOW_CTL_MODE_PACKET_BASED) {
4380 bt_dev_err(hdev, "wrong event for mode %d", hdev->flow_ctl_mode);
4384 bt_dev_dbg(hdev, "num %d", ev->num);
4386 for (i = 0; i < ev->num; i++) {
4387 struct hci_comp_pkts_info *info = &ev->handles[i];
4388 struct hci_conn *conn;
4389 __u16 handle, count;
4391 handle = __le16_to_cpu(info->handle);
4392 count = __le16_to_cpu(info->count);
4394 conn = hci_conn_hash_lookup_handle(hdev, handle);
4398 conn->sent -= count;
4400 switch (conn->type) {
4402 hdev->acl_cnt += count;
4403 if (hdev->acl_cnt > hdev->acl_pkts)
4404 hdev->acl_cnt = hdev->acl_pkts;
4408 if (hdev->le_pkts) {
4409 hdev->le_cnt += count;
4410 if (hdev->le_cnt > hdev->le_pkts)
4411 hdev->le_cnt = hdev->le_pkts;
4413 hdev->acl_cnt += count;
4414 if (hdev->acl_cnt > hdev->acl_pkts)
4415 hdev->acl_cnt = hdev->acl_pkts;
4420 hdev->sco_cnt += count;
4421 if (hdev->sco_cnt > hdev->sco_pkts)
4422 hdev->sco_cnt = hdev->sco_pkts;
4426 if (hdev->iso_pkts) {
4427 hdev->iso_cnt += count;
4428 if (hdev->iso_cnt > hdev->iso_pkts)
4429 hdev->iso_cnt = hdev->iso_pkts;
4430 } else if (hdev->le_pkts) {
4431 hdev->le_cnt += count;
4432 if (hdev->le_cnt > hdev->le_pkts)
4433 hdev->le_cnt = hdev->le_pkts;
4435 hdev->acl_cnt += count;
4436 if (hdev->acl_cnt > hdev->acl_pkts)
4437 hdev->acl_cnt = hdev->acl_pkts;
4442 bt_dev_err(hdev, "unknown type %d conn %p",
4448 queue_work(hdev->workqueue, &hdev->tx_work);
4451 static struct hci_conn *__hci_conn_lookup_handle(struct hci_dev *hdev,
4454 struct hci_chan *chan;
4456 switch (hdev->dev_type) {
4458 return hci_conn_hash_lookup_handle(hdev, handle);
4460 chan = hci_chan_lookup_handle(hdev, handle);
4465 bt_dev_err(hdev, "unknown dev_type %d", hdev->dev_type);
4472 static void hci_num_comp_blocks_evt(struct hci_dev *hdev, void *data,
4473 struct sk_buff *skb)
4475 struct hci_ev_num_comp_blocks *ev = data;
4478 if (!hci_ev_skb_pull(hdev, skb, HCI_EV_NUM_COMP_BLOCKS,
4479 flex_array_size(ev, handles, ev->num_hndl)))
4482 if (hdev->flow_ctl_mode != HCI_FLOW_CTL_MODE_BLOCK_BASED) {
4483 bt_dev_err(hdev, "wrong event for mode %d",
4484 hdev->flow_ctl_mode);
4488 bt_dev_dbg(hdev, "num_blocks %d num_hndl %d", ev->num_blocks,
4491 for (i = 0; i < ev->num_hndl; i++) {
4492 struct hci_comp_blocks_info *info = &ev->handles[i];
4493 struct hci_conn *conn = NULL;
4494 __u16 handle, block_count;
4496 handle = __le16_to_cpu(info->handle);
4497 block_count = __le16_to_cpu(info->blocks);
4499 conn = __hci_conn_lookup_handle(hdev, handle);
4503 conn->sent -= block_count;
4505 switch (conn->type) {
4508 hdev->block_cnt += block_count;
4509 if (hdev->block_cnt > hdev->num_blocks)
4510 hdev->block_cnt = hdev->num_blocks;
4514 bt_dev_err(hdev, "unknown type %d conn %p",
4520 queue_work(hdev->workqueue, &hdev->tx_work);
4523 static void hci_mode_change_evt(struct hci_dev *hdev, void *data,
4524 struct sk_buff *skb)
4526 struct hci_ev_mode_change *ev = data;
4527 struct hci_conn *conn;
4529 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
4533 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
4535 conn->mode = ev->mode;
4537 if (!test_and_clear_bit(HCI_CONN_MODE_CHANGE_PEND,
4539 if (conn->mode == HCI_CM_ACTIVE)
4540 set_bit(HCI_CONN_POWER_SAVE, &conn->flags);
4542 clear_bit(HCI_CONN_POWER_SAVE, &conn->flags);
4545 if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags))
4546 hci_sco_setup(conn, ev->status);
4549 hci_dev_unlock(hdev);
4552 static void hci_pin_code_request_evt(struct hci_dev *hdev, void *data,
4553 struct sk_buff *skb)
4555 struct hci_ev_pin_code_req *ev = data;
4556 struct hci_conn *conn;
4558 bt_dev_dbg(hdev, "");
4562 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
4566 if (conn->state == BT_CONNECTED) {
4567 hci_conn_hold(conn);
4568 conn->disc_timeout = HCI_PAIRING_TIMEOUT;
4569 hci_conn_drop(conn);
4572 if (!hci_dev_test_flag(hdev, HCI_BONDABLE) &&
4573 !test_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags)) {
4574 hci_send_cmd(hdev, HCI_OP_PIN_CODE_NEG_REPLY,
4575 sizeof(ev->bdaddr), &ev->bdaddr);
4576 } else if (hci_dev_test_flag(hdev, HCI_MGMT)) {
4579 if (conn->pending_sec_level == BT_SECURITY_HIGH)
4584 mgmt_pin_code_request(hdev, &ev->bdaddr, secure);
4588 hci_dev_unlock(hdev);
4591 static void conn_set_key(struct hci_conn *conn, u8 key_type, u8 pin_len)
4593 if (key_type == HCI_LK_CHANGED_COMBINATION)
4596 conn->pin_length = pin_len;
4597 conn->key_type = key_type;
4600 case HCI_LK_LOCAL_UNIT:
4601 case HCI_LK_REMOTE_UNIT:
4602 case HCI_LK_DEBUG_COMBINATION:
4604 case HCI_LK_COMBINATION:
4606 conn->pending_sec_level = BT_SECURITY_HIGH;
4608 conn->pending_sec_level = BT_SECURITY_MEDIUM;
4610 case HCI_LK_UNAUTH_COMBINATION_P192:
4611 case HCI_LK_UNAUTH_COMBINATION_P256:
4612 conn->pending_sec_level = BT_SECURITY_MEDIUM;
4614 case HCI_LK_AUTH_COMBINATION_P192:
4615 conn->pending_sec_level = BT_SECURITY_HIGH;
4617 case HCI_LK_AUTH_COMBINATION_P256:
4618 conn->pending_sec_level = BT_SECURITY_FIPS;
4623 static void hci_link_key_request_evt(struct hci_dev *hdev, void *data,
4624 struct sk_buff *skb)
4626 struct hci_ev_link_key_req *ev = data;
4627 struct hci_cp_link_key_reply cp;
4628 struct hci_conn *conn;
4629 struct link_key *key;
4631 bt_dev_dbg(hdev, "");
4633 if (!hci_dev_test_flag(hdev, HCI_MGMT))
4638 key = hci_find_link_key(hdev, &ev->bdaddr);
4640 bt_dev_dbg(hdev, "link key not found for %pMR", &ev->bdaddr);
4644 bt_dev_dbg(hdev, "found key type %u for %pMR", key->type, &ev->bdaddr);
4646 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
4648 clear_bit(HCI_CONN_NEW_LINK_KEY, &conn->flags);
4650 if ((key->type == HCI_LK_UNAUTH_COMBINATION_P192 ||
4651 key->type == HCI_LK_UNAUTH_COMBINATION_P256) &&
4652 conn->auth_type != 0xff && (conn->auth_type & 0x01)) {
4653 bt_dev_dbg(hdev, "ignoring unauthenticated key");
4657 if (key->type == HCI_LK_COMBINATION && key->pin_len < 16 &&
4658 (conn->pending_sec_level == BT_SECURITY_HIGH ||
4659 conn->pending_sec_level == BT_SECURITY_FIPS)) {
4660 bt_dev_dbg(hdev, "ignoring key unauthenticated for high security");
4664 conn_set_key(conn, key->type, key->pin_len);
4667 bacpy(&cp.bdaddr, &ev->bdaddr);
4668 memcpy(cp.link_key, key->val, HCI_LINK_KEY_SIZE);
4670 hci_send_cmd(hdev, HCI_OP_LINK_KEY_REPLY, sizeof(cp), &cp);
4672 hci_dev_unlock(hdev);
4677 hci_send_cmd(hdev, HCI_OP_LINK_KEY_NEG_REPLY, 6, &ev->bdaddr);
4678 hci_dev_unlock(hdev);
4681 static void hci_link_key_notify_evt(struct hci_dev *hdev, void *data,
4682 struct sk_buff *skb)
4684 struct hci_ev_link_key_notify *ev = data;
4685 struct hci_conn *conn;
4686 struct link_key *key;
4690 bt_dev_dbg(hdev, "");
4694 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
4698 hci_conn_hold(conn);
4699 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
4700 hci_conn_drop(conn);
4702 set_bit(HCI_CONN_NEW_LINK_KEY, &conn->flags);
4703 conn_set_key(conn, ev->key_type, conn->pin_length);
4705 if (!hci_dev_test_flag(hdev, HCI_MGMT))
4708 key = hci_add_link_key(hdev, conn, &ev->bdaddr, ev->link_key,
4709 ev->key_type, pin_len, &persistent);
4713 /* Update connection information since adding the key will have
4714 * fixed up the type in the case of changed combination keys.
4716 if (ev->key_type == HCI_LK_CHANGED_COMBINATION)
4717 conn_set_key(conn, key->type, key->pin_len);
4719 mgmt_new_link_key(hdev, key, persistent);
4721 /* Keep debug keys around only if the HCI_KEEP_DEBUG_KEYS flag
4722 * is set. If it's not set simply remove the key from the kernel
4723 * list (we've still notified user space about it but with
4724 * store_hint being 0).
4726 if (key->type == HCI_LK_DEBUG_COMBINATION &&
4727 !hci_dev_test_flag(hdev, HCI_KEEP_DEBUG_KEYS)) {
4728 list_del_rcu(&key->list);
4729 kfree_rcu(key, rcu);
4734 clear_bit(HCI_CONN_FLUSH_KEY, &conn->flags);
4736 set_bit(HCI_CONN_FLUSH_KEY, &conn->flags);
4739 hci_dev_unlock(hdev);
4742 static void hci_clock_offset_evt(struct hci_dev *hdev, void *data,
4743 struct sk_buff *skb)
4745 struct hci_ev_clock_offset *ev = data;
4746 struct hci_conn *conn;
4748 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
4752 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
4753 if (conn && !ev->status) {
4754 struct inquiry_entry *ie;
4756 ie = hci_inquiry_cache_lookup(hdev, &conn->dst);
4758 ie->data.clock_offset = ev->clock_offset;
4759 ie->timestamp = jiffies;
4763 hci_dev_unlock(hdev);
4766 static void hci_pkt_type_change_evt(struct hci_dev *hdev, void *data,
4767 struct sk_buff *skb)
4769 struct hci_ev_pkt_type_change *ev = data;
4770 struct hci_conn *conn;
4772 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
4776 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
4777 if (conn && !ev->status)
4778 conn->pkt_type = __le16_to_cpu(ev->pkt_type);
4780 hci_dev_unlock(hdev);
4783 static void hci_pscan_rep_mode_evt(struct hci_dev *hdev, void *data,
4784 struct sk_buff *skb)
4786 struct hci_ev_pscan_rep_mode *ev = data;
4787 struct inquiry_entry *ie;
4789 bt_dev_dbg(hdev, "");
4793 ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
4795 ie->data.pscan_rep_mode = ev->pscan_rep_mode;
4796 ie->timestamp = jiffies;
4799 hci_dev_unlock(hdev);
4802 static void hci_inquiry_result_with_rssi_evt(struct hci_dev *hdev, void *edata,
4803 struct sk_buff *skb)
4805 struct hci_ev_inquiry_result_rssi *ev = edata;
4806 struct inquiry_data data;
4809 bt_dev_dbg(hdev, "num_rsp %d", ev->num);
4814 if (hci_dev_test_flag(hdev, HCI_PERIODIC_INQ))
4819 if (skb->len == array_size(ev->num,
4820 sizeof(struct inquiry_info_rssi_pscan))) {
4821 struct inquiry_info_rssi_pscan *info;
4823 for (i = 0; i < ev->num; i++) {
4826 info = hci_ev_skb_pull(hdev, skb,
4827 HCI_EV_INQUIRY_RESULT_WITH_RSSI,
4830 bt_dev_err(hdev, "Malformed HCI Event: 0x%2.2x",
4831 HCI_EV_INQUIRY_RESULT_WITH_RSSI);
4835 bacpy(&data.bdaddr, &info->bdaddr);
4836 data.pscan_rep_mode = info->pscan_rep_mode;
4837 data.pscan_period_mode = info->pscan_period_mode;
4838 data.pscan_mode = info->pscan_mode;
4839 memcpy(data.dev_class, info->dev_class, 3);
4840 data.clock_offset = info->clock_offset;
4841 data.rssi = info->rssi;
4842 data.ssp_mode = 0x00;
4844 flags = hci_inquiry_cache_update(hdev, &data, false);
4846 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
4847 info->dev_class, info->rssi,
4848 flags, NULL, 0, NULL, 0, 0);
4850 } else if (skb->len == array_size(ev->num,
4851 sizeof(struct inquiry_info_rssi))) {
4852 struct inquiry_info_rssi *info;
4854 for (i = 0; i < ev->num; i++) {
4857 info = hci_ev_skb_pull(hdev, skb,
4858 HCI_EV_INQUIRY_RESULT_WITH_RSSI,
4861 bt_dev_err(hdev, "Malformed HCI Event: 0x%2.2x",
4862 HCI_EV_INQUIRY_RESULT_WITH_RSSI);
4866 bacpy(&data.bdaddr, &info->bdaddr);
4867 data.pscan_rep_mode = info->pscan_rep_mode;
4868 data.pscan_period_mode = info->pscan_period_mode;
4869 data.pscan_mode = 0x00;
4870 memcpy(data.dev_class, info->dev_class, 3);
4871 data.clock_offset = info->clock_offset;
4872 data.rssi = info->rssi;
4873 data.ssp_mode = 0x00;
4875 flags = hci_inquiry_cache_update(hdev, &data, false);
4877 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
4878 info->dev_class, info->rssi,
4879 flags, NULL, 0, NULL, 0, 0);
4882 bt_dev_err(hdev, "Malformed HCI Event: 0x%2.2x",
4883 HCI_EV_INQUIRY_RESULT_WITH_RSSI);
4886 hci_dev_unlock(hdev);
4889 static void hci_remote_ext_features_evt(struct hci_dev *hdev, void *data,
4890 struct sk_buff *skb)
4892 struct hci_ev_remote_ext_features *ev = data;
4893 struct hci_conn *conn;
4895 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
4899 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
4903 if (ev->page < HCI_MAX_PAGES)
4904 memcpy(conn->features[ev->page], ev->features, 8);
4906 if (!ev->status && ev->page == 0x01) {
4907 struct inquiry_entry *ie;
4909 ie = hci_inquiry_cache_lookup(hdev, &conn->dst);
4911 ie->data.ssp_mode = (ev->features[0] & LMP_HOST_SSP);
4913 if (ev->features[0] & LMP_HOST_SSP) {
4914 set_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
4916 /* It is mandatory by the Bluetooth specification that
4917 * Extended Inquiry Results are only used when Secure
4918 * Simple Pairing is enabled, but some devices violate
4921 * To make these devices work, the internal SSP
4922 * enabled flag needs to be cleared if the remote host
4923 * features do not indicate SSP support */
4924 clear_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
4927 if (ev->features[0] & LMP_HOST_SC)
4928 set_bit(HCI_CONN_SC_ENABLED, &conn->flags);
4931 if (conn->state != BT_CONFIG)
4934 if (!ev->status && !test_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags)) {
4935 struct hci_cp_remote_name_req cp;
4936 memset(&cp, 0, sizeof(cp));
4937 bacpy(&cp.bdaddr, &conn->dst);
4938 cp.pscan_rep_mode = 0x02;
4939 hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp);
4940 } else if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
4941 mgmt_device_connected(hdev, conn, NULL, 0);
4943 if (!hci_outgoing_auth_needed(hdev, conn)) {
4944 conn->state = BT_CONNECTED;
4945 hci_connect_cfm(conn, ev->status);
4946 hci_conn_drop(conn);
4950 hci_dev_unlock(hdev);
4953 static void hci_sync_conn_complete_evt(struct hci_dev *hdev, void *data,
4954 struct sk_buff *skb)
4956 struct hci_ev_sync_conn_complete *ev = data;
4957 struct hci_conn *conn;
4958 u8 status = ev->status;
4960 switch (ev->link_type) {
4965 /* As per Core 5.3 Vol 4 Part E 7.7.35 (p.2219), Link_Type
4966 * for HCI_Synchronous_Connection_Complete is limited to
4967 * either SCO or eSCO
4969 bt_dev_err(hdev, "Ignoring connect complete event for invalid link type");
4973 bt_dev_dbg(hdev, "status 0x%2.2x", status);
4977 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr);
4979 if (ev->link_type == ESCO_LINK)
4982 /* When the link type in the event indicates SCO connection
4983 * and lookup of the connection object fails, then check
4984 * if an eSCO connection object exists.
4986 * The core limits the synchronous connections to either
4987 * SCO or eSCO. The eSCO connection is preferred and tried
4988 * to be setup first and until successfully established,
4989 * the link type will be hinted as eSCO.
4991 conn = hci_conn_hash_lookup_ba(hdev, ESCO_LINK, &ev->bdaddr);
4996 /* The HCI_Synchronous_Connection_Complete event is only sent once per connection.
4997 * Processing it more than once per connection can corrupt kernel memory.
4999 * As the connection handle is set here for the first time, it indicates
5000 * whether the connection is already set up.
5002 if (conn->handle != HCI_CONN_HANDLE_UNSET) {
5003 bt_dev_err(hdev, "Ignoring HCI_Sync_Conn_Complete event for existing connection");
5009 conn->handle = __le16_to_cpu(ev->handle);
5010 if (conn->handle > HCI_CONN_HANDLE_MAX) {
5011 bt_dev_err(hdev, "Invalid handle: 0x%4.4x > 0x%4.4x",
5012 conn->handle, HCI_CONN_HANDLE_MAX);
5013 status = HCI_ERROR_INVALID_PARAMETERS;
5014 conn->state = BT_CLOSED;
5018 conn->state = BT_CONNECTED;
5019 conn->type = ev->link_type;
5021 hci_debugfs_create_conn(conn);
5022 hci_conn_add_sysfs(conn);
5025 case 0x10: /* Connection Accept Timeout */
5026 case 0x0d: /* Connection Rejected due to Limited Resources */
5027 case 0x11: /* Unsupported Feature or Parameter Value */
5028 case 0x1c: /* SCO interval rejected */
5029 case 0x1a: /* Unsupported Remote Feature */
5030 case 0x1e: /* Invalid LMP Parameters */
5031 case 0x1f: /* Unspecified error */
5032 case 0x20: /* Unsupported LMP Parameter value */
5034 conn->pkt_type = (hdev->esco_type & SCO_ESCO_MASK) |
5035 (hdev->esco_type & EDR_ESCO_MASK);
5036 if (hci_setup_sync(conn, conn->parent->handle))
5042 conn->state = BT_CLOSED;
5046 bt_dev_dbg(hdev, "SCO connected with air mode: %02x", ev->air_mode);
5047 /* Notify only in case of SCO over HCI transport data path which
5048 * is zero and non-zero value shall be non-HCI transport data path
5050 if (conn->codec.data_path == 0 && hdev->notify) {
5051 switch (ev->air_mode) {
5053 hdev->notify(hdev, HCI_NOTIFY_ENABLE_SCO_CVSD);
5056 hdev->notify(hdev, HCI_NOTIFY_ENABLE_SCO_TRANSP);
5061 hci_connect_cfm(conn, status);
5066 hci_dev_unlock(hdev);
5069 static inline size_t eir_get_length(u8 *eir, size_t eir_len)
5073 while (parsed < eir_len) {
5074 u8 field_len = eir[0];
5079 parsed += field_len + 1;
5080 eir += field_len + 1;
5086 static void hci_extended_inquiry_result_evt(struct hci_dev *hdev, void *edata,
5087 struct sk_buff *skb)
5089 struct hci_ev_ext_inquiry_result *ev = edata;
5090 struct inquiry_data data;
5094 if (!hci_ev_skb_pull(hdev, skb, HCI_EV_EXTENDED_INQUIRY_RESULT,
5095 flex_array_size(ev, info, ev->num)))
5098 bt_dev_dbg(hdev, "num %d", ev->num);
5103 if (hci_dev_test_flag(hdev, HCI_PERIODIC_INQ))
5108 for (i = 0; i < ev->num; i++) {
5109 struct extended_inquiry_info *info = &ev->info[i];
5113 bacpy(&data.bdaddr, &info->bdaddr);
5114 data.pscan_rep_mode = info->pscan_rep_mode;
5115 data.pscan_period_mode = info->pscan_period_mode;
5116 data.pscan_mode = 0x00;
5117 memcpy(data.dev_class, info->dev_class, 3);
5118 data.clock_offset = info->clock_offset;
5119 data.rssi = info->rssi;
5120 data.ssp_mode = 0x01;
5122 if (hci_dev_test_flag(hdev, HCI_MGMT))
5123 name_known = eir_get_data(info->data,
5125 EIR_NAME_COMPLETE, NULL);
5129 flags = hci_inquiry_cache_update(hdev, &data, name_known);
5131 eir_len = eir_get_length(info->data, sizeof(info->data));
5133 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
5134 info->dev_class, info->rssi,
5135 flags, info->data, eir_len, NULL, 0, 0);
5138 hci_dev_unlock(hdev);
5141 static void hci_key_refresh_complete_evt(struct hci_dev *hdev, void *data,
5142 struct sk_buff *skb)
5144 struct hci_ev_key_refresh_complete *ev = data;
5145 struct hci_conn *conn;
5147 bt_dev_dbg(hdev, "status 0x%2.2x handle 0x%4.4x", ev->status,
5148 __le16_to_cpu(ev->handle));
5152 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
5156 /* For BR/EDR the necessary steps are taken through the
5157 * auth_complete event.
5159 if (conn->type != LE_LINK)
5163 conn->sec_level = conn->pending_sec_level;
5165 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
5167 if (ev->status && conn->state == BT_CONNECTED) {
5168 hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE);
5169 hci_conn_drop(conn);
5173 if (conn->state == BT_CONFIG) {
5175 conn->state = BT_CONNECTED;
5177 hci_connect_cfm(conn, ev->status);
5178 hci_conn_drop(conn);
5180 hci_auth_cfm(conn, ev->status);
5182 hci_conn_hold(conn);
5183 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
5184 hci_conn_drop(conn);
5188 hci_dev_unlock(hdev);
5191 static u8 hci_get_auth_req(struct hci_conn *conn)
5193 /* If remote requests no-bonding follow that lead */
5194 if (conn->remote_auth == HCI_AT_NO_BONDING ||
5195 conn->remote_auth == HCI_AT_NO_BONDING_MITM)
5196 return conn->remote_auth | (conn->auth_type & 0x01);
5198 /* If both remote and local have enough IO capabilities, require
5201 if (conn->remote_cap != HCI_IO_NO_INPUT_OUTPUT &&
5202 conn->io_capability != HCI_IO_NO_INPUT_OUTPUT)
5203 return conn->remote_auth | 0x01;
5205 /* No MITM protection possible so ignore remote requirement */
5206 return (conn->remote_auth & ~0x01) | (conn->auth_type & 0x01);
5209 static u8 bredr_oob_data_present(struct hci_conn *conn)
5211 struct hci_dev *hdev = conn->hdev;
5212 struct oob_data *data;
5214 data = hci_find_remote_oob_data(hdev, &conn->dst, BDADDR_BREDR);
5218 if (bredr_sc_enabled(hdev)) {
5219 /* When Secure Connections is enabled, then just
5220 * return the present value stored with the OOB
5221 * data. The stored value contains the right present
5222 * information. However it can only be trusted when
5223 * not in Secure Connection Only mode.
5225 if (!hci_dev_test_flag(hdev, HCI_SC_ONLY))
5226 return data->present;
5228 /* When Secure Connections Only mode is enabled, then
5229 * the P-256 values are required. If they are not
5230 * available, then do not declare that OOB data is
5233 if (!memcmp(data->rand256, ZERO_KEY, 16) ||
5234 !memcmp(data->hash256, ZERO_KEY, 16))
5240 /* When Secure Connections is not enabled or actually
5241 * not supported by the hardware, then check that if
5242 * P-192 data values are present.
5244 if (!memcmp(data->rand192, ZERO_KEY, 16) ||
5245 !memcmp(data->hash192, ZERO_KEY, 16))
5251 static void hci_io_capa_request_evt(struct hci_dev *hdev, void *data,
5252 struct sk_buff *skb)
5254 struct hci_ev_io_capa_request *ev = data;
5255 struct hci_conn *conn;
5257 bt_dev_dbg(hdev, "");
5261 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
5265 hci_conn_hold(conn);
5267 if (!hci_dev_test_flag(hdev, HCI_MGMT))
5270 /* Allow pairing if we're pairable, the initiators of the
5271 * pairing or if the remote is not requesting bonding.
5273 if (hci_dev_test_flag(hdev, HCI_BONDABLE) ||
5274 test_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags) ||
5275 (conn->remote_auth & ~0x01) == HCI_AT_NO_BONDING) {
5276 struct hci_cp_io_capability_reply cp;
5278 bacpy(&cp.bdaddr, &ev->bdaddr);
5279 /* Change the IO capability from KeyboardDisplay
5280 * to DisplayYesNo as it is not supported by BT spec. */
5281 cp.capability = (conn->io_capability == 0x04) ?
5282 HCI_IO_DISPLAY_YESNO : conn->io_capability;
5284 /* If we are initiators, there is no remote information yet */
5285 if (conn->remote_auth == 0xff) {
5286 /* Request MITM protection if our IO caps allow it
5287 * except for the no-bonding case.
5289 if (conn->io_capability != HCI_IO_NO_INPUT_OUTPUT &&
5290 conn->auth_type != HCI_AT_NO_BONDING)
5291 conn->auth_type |= 0x01;
5293 conn->auth_type = hci_get_auth_req(conn);
5296 /* If we're not bondable, force one of the non-bondable
5297 * authentication requirement values.
5299 if (!hci_dev_test_flag(hdev, HCI_BONDABLE))
5300 conn->auth_type &= HCI_AT_NO_BONDING_MITM;
5302 cp.authentication = conn->auth_type;
5303 cp.oob_data = bredr_oob_data_present(conn);
5305 hci_send_cmd(hdev, HCI_OP_IO_CAPABILITY_REPLY,
5308 struct hci_cp_io_capability_neg_reply cp;
5310 bacpy(&cp.bdaddr, &ev->bdaddr);
5311 cp.reason = HCI_ERROR_PAIRING_NOT_ALLOWED;
5313 hci_send_cmd(hdev, HCI_OP_IO_CAPABILITY_NEG_REPLY,
5318 hci_dev_unlock(hdev);
5321 static void hci_io_capa_reply_evt(struct hci_dev *hdev, void *data,
5322 struct sk_buff *skb)
5324 struct hci_ev_io_capa_reply *ev = data;
5325 struct hci_conn *conn;
5327 bt_dev_dbg(hdev, "");
5331 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
5335 conn->remote_cap = ev->capability;
5336 conn->remote_auth = ev->authentication;
5339 hci_dev_unlock(hdev);
5342 static void hci_user_confirm_request_evt(struct hci_dev *hdev, void *data,
5343 struct sk_buff *skb)
5345 struct hci_ev_user_confirm_req *ev = data;
5346 int loc_mitm, rem_mitm, confirm_hint = 0;
5347 struct hci_conn *conn;
5349 bt_dev_dbg(hdev, "");
5353 if (!hci_dev_test_flag(hdev, HCI_MGMT))
5356 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
5360 loc_mitm = (conn->auth_type & 0x01);
5361 rem_mitm = (conn->remote_auth & 0x01);
5363 /* If we require MITM but the remote device can't provide that
5364 * (it has NoInputNoOutput) then reject the confirmation
5365 * request. We check the security level here since it doesn't
5366 * necessarily match conn->auth_type.
5368 if (conn->pending_sec_level > BT_SECURITY_MEDIUM &&
5369 conn->remote_cap == HCI_IO_NO_INPUT_OUTPUT) {
5370 bt_dev_dbg(hdev, "Rejecting request: remote device can't provide MITM");
5371 hci_send_cmd(hdev, HCI_OP_USER_CONFIRM_NEG_REPLY,
5372 sizeof(ev->bdaddr), &ev->bdaddr);
5376 /* If no side requires MITM protection; auto-accept */
5377 if ((!loc_mitm || conn->remote_cap == HCI_IO_NO_INPUT_OUTPUT) &&
5378 (!rem_mitm || conn->io_capability == HCI_IO_NO_INPUT_OUTPUT)) {
5380 /* If we're not the initiators request authorization to
5381 * proceed from user space (mgmt_user_confirm with
5382 * confirm_hint set to 1). The exception is if neither
5383 * side had MITM or if the local IO capability is
5384 * NoInputNoOutput, in which case we do auto-accept
5386 if (!test_bit(HCI_CONN_AUTH_PEND, &conn->flags) &&
5387 conn->io_capability != HCI_IO_NO_INPUT_OUTPUT &&
5388 (loc_mitm || rem_mitm)) {
5389 bt_dev_dbg(hdev, "Confirming auto-accept as acceptor");
5394 /* If there already exists link key in local host, leave the
5395 * decision to user space since the remote device could be
5396 * legitimate or malicious.
5398 if (hci_find_link_key(hdev, &ev->bdaddr)) {
5399 bt_dev_dbg(hdev, "Local host already has link key");
5404 BT_DBG("Auto-accept of user confirmation with %ums delay",
5405 hdev->auto_accept_delay);
5407 if (hdev->auto_accept_delay > 0) {
5408 int delay = msecs_to_jiffies(hdev->auto_accept_delay);
5409 queue_delayed_work(conn->hdev->workqueue,
5410 &conn->auto_accept_work, delay);
5414 hci_send_cmd(hdev, HCI_OP_USER_CONFIRM_REPLY,
5415 sizeof(ev->bdaddr), &ev->bdaddr);
5420 mgmt_user_confirm_request(hdev, &ev->bdaddr, ACL_LINK, 0,
5421 le32_to_cpu(ev->passkey), confirm_hint);
5424 hci_dev_unlock(hdev);
5427 static void hci_user_passkey_request_evt(struct hci_dev *hdev, void *data,
5428 struct sk_buff *skb)
5430 struct hci_ev_user_passkey_req *ev = data;
5432 bt_dev_dbg(hdev, "");
5434 if (hci_dev_test_flag(hdev, HCI_MGMT))
5435 mgmt_user_passkey_request(hdev, &ev->bdaddr, ACL_LINK, 0);
5438 static void hci_user_passkey_notify_evt(struct hci_dev *hdev, void *data,
5439 struct sk_buff *skb)
5441 struct hci_ev_user_passkey_notify *ev = data;
5442 struct hci_conn *conn;
5444 bt_dev_dbg(hdev, "");
5446 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
5450 conn->passkey_notify = __le32_to_cpu(ev->passkey);
5451 conn->passkey_entered = 0;
5453 if (hci_dev_test_flag(hdev, HCI_MGMT))
5454 mgmt_user_passkey_notify(hdev, &conn->dst, conn->type,
5455 conn->dst_type, conn->passkey_notify,
5456 conn->passkey_entered);
5459 static void hci_keypress_notify_evt(struct hci_dev *hdev, void *data,
5460 struct sk_buff *skb)
5462 struct hci_ev_keypress_notify *ev = data;
5463 struct hci_conn *conn;
5465 bt_dev_dbg(hdev, "");
5467 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
5472 case HCI_KEYPRESS_STARTED:
5473 conn->passkey_entered = 0;
5476 case HCI_KEYPRESS_ENTERED:
5477 conn->passkey_entered++;
5480 case HCI_KEYPRESS_ERASED:
5481 conn->passkey_entered--;
5484 case HCI_KEYPRESS_CLEARED:
5485 conn->passkey_entered = 0;
5488 case HCI_KEYPRESS_COMPLETED:
5492 if (hci_dev_test_flag(hdev, HCI_MGMT))
5493 mgmt_user_passkey_notify(hdev, &conn->dst, conn->type,
5494 conn->dst_type, conn->passkey_notify,
5495 conn->passkey_entered);
5498 static void hci_simple_pair_complete_evt(struct hci_dev *hdev, void *data,
5499 struct sk_buff *skb)
5501 struct hci_ev_simple_pair_complete *ev = data;
5502 struct hci_conn *conn;
5504 bt_dev_dbg(hdev, "");
5508 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
5512 /* Reset the authentication requirement to unknown */
5513 conn->remote_auth = 0xff;
5515 /* To avoid duplicate auth_failed events to user space we check
5516 * the HCI_CONN_AUTH_PEND flag which will be set if we
5517 * initiated the authentication. A traditional auth_complete
5518 * event gets always produced as initiator and is also mapped to
5519 * the mgmt_auth_failed event */
5520 if (!test_bit(HCI_CONN_AUTH_PEND, &conn->flags) && ev->status)
5521 mgmt_auth_failed(conn, ev->status);
5523 hci_conn_drop(conn);
5526 hci_dev_unlock(hdev);
5529 static void hci_remote_host_features_evt(struct hci_dev *hdev, void *data,
5530 struct sk_buff *skb)
5532 struct hci_ev_remote_host_features *ev = data;
5533 struct inquiry_entry *ie;
5534 struct hci_conn *conn;
5536 bt_dev_dbg(hdev, "");
5540 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
5542 memcpy(conn->features[1], ev->features, 8);
5544 ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
5546 ie->data.ssp_mode = (ev->features[0] & LMP_HOST_SSP);
5548 hci_dev_unlock(hdev);
5551 static void hci_remote_oob_data_request_evt(struct hci_dev *hdev, void *edata,
5552 struct sk_buff *skb)
5554 struct hci_ev_remote_oob_data_request *ev = edata;
5555 struct oob_data *data;
5557 bt_dev_dbg(hdev, "");
5561 if (!hci_dev_test_flag(hdev, HCI_MGMT))
5564 data = hci_find_remote_oob_data(hdev, &ev->bdaddr, BDADDR_BREDR);
5566 struct hci_cp_remote_oob_data_neg_reply cp;
5568 bacpy(&cp.bdaddr, &ev->bdaddr);
5569 hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_DATA_NEG_REPLY,
5574 if (bredr_sc_enabled(hdev)) {
5575 struct hci_cp_remote_oob_ext_data_reply cp;
5577 bacpy(&cp.bdaddr, &ev->bdaddr);
5578 if (hci_dev_test_flag(hdev, HCI_SC_ONLY)) {
5579 memset(cp.hash192, 0, sizeof(cp.hash192));
5580 memset(cp.rand192, 0, sizeof(cp.rand192));
5582 memcpy(cp.hash192, data->hash192, sizeof(cp.hash192));
5583 memcpy(cp.rand192, data->rand192, sizeof(cp.rand192));
5585 memcpy(cp.hash256, data->hash256, sizeof(cp.hash256));
5586 memcpy(cp.rand256, data->rand256, sizeof(cp.rand256));
5588 hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_EXT_DATA_REPLY,
5591 struct hci_cp_remote_oob_data_reply cp;
5593 bacpy(&cp.bdaddr, &ev->bdaddr);
5594 memcpy(cp.hash, data->hash192, sizeof(cp.hash));
5595 memcpy(cp.rand, data->rand192, sizeof(cp.rand));
5597 hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_DATA_REPLY,
5602 hci_dev_unlock(hdev);
5605 #if IS_ENABLED(CONFIG_BT_HS)
5606 static void hci_chan_selected_evt(struct hci_dev *hdev, void *data,
5607 struct sk_buff *skb)
5609 struct hci_ev_channel_selected *ev = data;
5610 struct hci_conn *hcon;
5612 bt_dev_dbg(hdev, "handle 0x%2.2x", ev->phy_handle);
5614 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
5618 amp_read_loc_assoc_final_data(hdev, hcon);
5621 static void hci_phy_link_complete_evt(struct hci_dev *hdev, void *data,
5622 struct sk_buff *skb)
5624 struct hci_ev_phy_link_complete *ev = data;
5625 struct hci_conn *hcon, *bredr_hcon;
5627 bt_dev_dbg(hdev, "handle 0x%2.2x status 0x%2.2x", ev->phy_handle,
5632 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
5644 bredr_hcon = hcon->amp_mgr->l2cap_conn->hcon;
5646 hcon->state = BT_CONNECTED;
5647 bacpy(&hcon->dst, &bredr_hcon->dst);
5649 hci_conn_hold(hcon);
5650 hcon->disc_timeout = HCI_DISCONN_TIMEOUT;
5651 hci_conn_drop(hcon);
5653 hci_debugfs_create_conn(hcon);
5654 hci_conn_add_sysfs(hcon);
5656 amp_physical_cfm(bredr_hcon, hcon);
5659 hci_dev_unlock(hdev);
5662 static void hci_loglink_complete_evt(struct hci_dev *hdev, void *data,
5663 struct sk_buff *skb)
5665 struct hci_ev_logical_link_complete *ev = data;
5666 struct hci_conn *hcon;
5667 struct hci_chan *hchan;
5668 struct amp_mgr *mgr;
5670 bt_dev_dbg(hdev, "log_handle 0x%4.4x phy_handle 0x%2.2x status 0x%2.2x",
5671 le16_to_cpu(ev->handle), ev->phy_handle, ev->status);
5673 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
5677 /* Create AMP hchan */
5678 hchan = hci_chan_create(hcon);
5682 hchan->handle = le16_to_cpu(ev->handle);
5685 BT_DBG("hcon %p mgr %p hchan %p", hcon, hcon->amp_mgr, hchan);
5687 mgr = hcon->amp_mgr;
5688 if (mgr && mgr->bredr_chan) {
5689 struct l2cap_chan *bredr_chan = mgr->bredr_chan;
5691 l2cap_chan_lock(bredr_chan);
5693 bredr_chan->conn->mtu = hdev->block_mtu;
5694 l2cap_logical_cfm(bredr_chan, hchan, 0);
5695 hci_conn_hold(hcon);
5697 l2cap_chan_unlock(bredr_chan);
5701 static void hci_disconn_loglink_complete_evt(struct hci_dev *hdev, void *data,
5702 struct sk_buff *skb)
5704 struct hci_ev_disconn_logical_link_complete *ev = data;
5705 struct hci_chan *hchan;
5707 bt_dev_dbg(hdev, "handle 0x%4.4x status 0x%2.2x",
5708 le16_to_cpu(ev->handle), ev->status);
5715 hchan = hci_chan_lookup_handle(hdev, le16_to_cpu(ev->handle));
5716 if (!hchan || !hchan->amp)
5719 amp_destroy_logical_link(hchan, ev->reason);
5722 hci_dev_unlock(hdev);
5725 static void hci_disconn_phylink_complete_evt(struct hci_dev *hdev, void *data,
5726 struct sk_buff *skb)
5728 struct hci_ev_disconn_phy_link_complete *ev = data;
5729 struct hci_conn *hcon;
5731 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
5738 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
5739 if (hcon && hcon->type == AMP_LINK) {
5740 hcon->state = BT_CLOSED;
5741 hci_disconn_cfm(hcon, ev->reason);
5745 hci_dev_unlock(hdev);
5749 static void le_conn_update_addr(struct hci_conn *conn, bdaddr_t *bdaddr,
5750 u8 bdaddr_type, bdaddr_t *local_rpa)
5753 conn->dst_type = bdaddr_type;
5754 conn->resp_addr_type = bdaddr_type;
5755 bacpy(&conn->resp_addr, bdaddr);
5757 /* Check if the controller has set a Local RPA then it must be
5758 * used instead or hdev->rpa.
5760 if (local_rpa && bacmp(local_rpa, BDADDR_ANY)) {
5761 conn->init_addr_type = ADDR_LE_DEV_RANDOM;
5762 bacpy(&conn->init_addr, local_rpa);
5763 } else if (hci_dev_test_flag(conn->hdev, HCI_PRIVACY)) {
5764 conn->init_addr_type = ADDR_LE_DEV_RANDOM;
5765 bacpy(&conn->init_addr, &conn->hdev->rpa);
5767 hci_copy_identity_address(conn->hdev, &conn->init_addr,
5768 &conn->init_addr_type);
5771 conn->resp_addr_type = conn->hdev->adv_addr_type;
5772 /* Check if the controller has set a Local RPA then it must be
5773 * used instead or hdev->rpa.
5775 if (local_rpa && bacmp(local_rpa, BDADDR_ANY)) {
5776 conn->resp_addr_type = ADDR_LE_DEV_RANDOM;
5777 bacpy(&conn->resp_addr, local_rpa);
5778 } else if (conn->hdev->adv_addr_type == ADDR_LE_DEV_RANDOM) {
5779 /* In case of ext adv, resp_addr will be updated in
5780 * Adv Terminated event.
5782 if (!ext_adv_capable(conn->hdev))
5783 bacpy(&conn->resp_addr,
5784 &conn->hdev->random_addr);
5786 bacpy(&conn->resp_addr, &conn->hdev->bdaddr);
5789 conn->init_addr_type = bdaddr_type;
5790 bacpy(&conn->init_addr, bdaddr);
5792 /* For incoming connections, set the default minimum
5793 * and maximum connection interval. They will be used
5794 * to check if the parameters are in range and if not
5795 * trigger the connection update procedure.
5797 conn->le_conn_min_interval = conn->hdev->le_conn_min_interval;
5798 conn->le_conn_max_interval = conn->hdev->le_conn_max_interval;
5802 static void le_conn_complete_evt(struct hci_dev *hdev, u8 status,
5803 bdaddr_t *bdaddr, u8 bdaddr_type,
5804 bdaddr_t *local_rpa, u8 role, u16 handle,
5805 u16 interval, u16 latency,
5806 u16 supervision_timeout)
5808 struct hci_conn_params *params;
5809 struct hci_conn *conn;
5810 struct smp_irk *irk;
5815 /* All controllers implicitly stop advertising in the event of a
5816 * connection, so ensure that the state bit is cleared.
5818 hci_dev_clear_flag(hdev, HCI_LE_ADV);
5820 conn = hci_conn_hash_lookup_ba(hdev, LE_LINK, bdaddr);
5822 /* In case of error status and there is no connection pending
5823 * just unlock as there is nothing to cleanup.
5828 conn = hci_conn_add(hdev, LE_LINK, bdaddr, role);
5830 bt_dev_err(hdev, "no memory for new connection");
5834 conn->dst_type = bdaddr_type;
5836 /* If we didn't have a hci_conn object previously
5837 * but we're in central role this must be something
5838 * initiated using an accept list. Since accept list based
5839 * connections are not "first class citizens" we don't
5840 * have full tracking of them. Therefore, we go ahead
5841 * with a "best effort" approach of determining the
5842 * initiator address based on the HCI_PRIVACY flag.
5845 conn->resp_addr_type = bdaddr_type;
5846 bacpy(&conn->resp_addr, bdaddr);
5847 if (hci_dev_test_flag(hdev, HCI_PRIVACY)) {
5848 conn->init_addr_type = ADDR_LE_DEV_RANDOM;
5849 bacpy(&conn->init_addr, &hdev->rpa);
5851 hci_copy_identity_address(hdev,
5853 &conn->init_addr_type);
5857 cancel_delayed_work(&conn->le_conn_timeout);
5860 /* The HCI_LE_Connection_Complete event is only sent once per connection.
5861 * Processing it more than once per connection can corrupt kernel memory.
5863 * As the connection handle is set here for the first time, it indicates
5864 * whether the connection is already set up.
5866 if (conn->handle != HCI_CONN_HANDLE_UNSET) {
5867 bt_dev_err(hdev, "Ignoring HCI_Connection_Complete for existing connection");
5871 le_conn_update_addr(conn, bdaddr, bdaddr_type, local_rpa);
5873 /* Lookup the identity address from the stored connection
5874 * address and address type.
5876 * When establishing connections to an identity address, the
5877 * connection procedure will store the resolvable random
5878 * address first. Now if it can be converted back into the
5879 * identity address, start using the identity address from
5882 irk = hci_get_irk(hdev, &conn->dst, conn->dst_type);
5884 bacpy(&conn->dst, &irk->bdaddr);
5885 conn->dst_type = irk->addr_type;
5888 conn->dst_type = ev_bdaddr_type(hdev, conn->dst_type, NULL);
5890 if (handle > HCI_CONN_HANDLE_MAX) {
5891 bt_dev_err(hdev, "Invalid handle: 0x%4.4x > 0x%4.4x", handle,
5892 HCI_CONN_HANDLE_MAX);
5893 status = HCI_ERROR_INVALID_PARAMETERS;
5896 /* All connection failure handling is taken care of by the
5897 * hci_conn_failed function which is triggered by the HCI
5898 * request completion callbacks used for connecting.
5903 /* Drop the connection if it has been aborted */
5904 if (test_bit(HCI_CONN_CANCEL, &conn->flags)) {
5905 hci_conn_drop(conn);
5909 if (conn->dst_type == ADDR_LE_DEV_PUBLIC)
5910 addr_type = BDADDR_LE_PUBLIC;
5912 addr_type = BDADDR_LE_RANDOM;
5914 /* Drop the connection if the device is blocked */
5915 if (hci_bdaddr_list_lookup(&hdev->reject_list, &conn->dst, addr_type)) {
5916 hci_conn_drop(conn);
5920 if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
5921 mgmt_device_connected(hdev, conn, NULL, 0);
5923 conn->sec_level = BT_SECURITY_LOW;
5924 conn->handle = handle;
5925 conn->state = BT_CONFIG;
5927 /* Store current advertising instance as connection advertising instance
5928 * when sotfware rotation is in use so it can be re-enabled when
5931 if (!ext_adv_capable(hdev))
5932 conn->adv_instance = hdev->cur_adv_instance;
5934 conn->le_conn_interval = interval;
5935 conn->le_conn_latency = latency;
5936 conn->le_supv_timeout = supervision_timeout;
5938 hci_debugfs_create_conn(conn);
5939 hci_conn_add_sysfs(conn);
5941 /* The remote features procedure is defined for central
5942 * role only. So only in case of an initiated connection
5943 * request the remote features.
5945 * If the local controller supports peripheral-initiated features
5946 * exchange, then requesting the remote features in peripheral
5947 * role is possible. Otherwise just transition into the
5948 * connected state without requesting the remote features.
5951 (hdev->le_features[0] & HCI_LE_PERIPHERAL_FEATURES)) {
5952 struct hci_cp_le_read_remote_features cp;
5954 cp.handle = __cpu_to_le16(conn->handle);
5956 hci_send_cmd(hdev, HCI_OP_LE_READ_REMOTE_FEATURES,
5959 hci_conn_hold(conn);
5961 conn->state = BT_CONNECTED;
5962 hci_connect_cfm(conn, status);
5965 params = hci_pend_le_action_lookup(&hdev->pend_le_conns, &conn->dst,
5968 hci_pend_le_list_del_init(params);
5970 hci_conn_drop(params->conn);
5971 hci_conn_put(params->conn);
5972 params->conn = NULL;
5977 hci_update_passive_scan(hdev);
5978 hci_dev_unlock(hdev);
5981 static void hci_le_conn_complete_evt(struct hci_dev *hdev, void *data,
5982 struct sk_buff *skb)
5984 struct hci_ev_le_conn_complete *ev = data;
5986 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
5988 le_conn_complete_evt(hdev, ev->status, &ev->bdaddr, ev->bdaddr_type,
5989 NULL, ev->role, le16_to_cpu(ev->handle),
5990 le16_to_cpu(ev->interval),
5991 le16_to_cpu(ev->latency),
5992 le16_to_cpu(ev->supervision_timeout));
5995 static void hci_le_enh_conn_complete_evt(struct hci_dev *hdev, void *data,
5996 struct sk_buff *skb)
5998 struct hci_ev_le_enh_conn_complete *ev = data;
6000 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
6002 le_conn_complete_evt(hdev, ev->status, &ev->bdaddr, ev->bdaddr_type,
6003 &ev->local_rpa, ev->role, le16_to_cpu(ev->handle),
6004 le16_to_cpu(ev->interval),
6005 le16_to_cpu(ev->latency),
6006 le16_to_cpu(ev->supervision_timeout));
6009 static void hci_le_ext_adv_term_evt(struct hci_dev *hdev, void *data,
6010 struct sk_buff *skb)
6012 struct hci_evt_le_ext_adv_set_term *ev = data;
6013 struct hci_conn *conn;
6014 struct adv_info *adv, *n;
6016 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
6018 /* The Bluetooth Core 5.3 specification clearly states that this event
6019 * shall not be sent when the Host disables the advertising set. So in
6020 * case of HCI_ERROR_CANCELLED_BY_HOST, just ignore the event.
6022 * When the Host disables an advertising set, all cleanup is done via
6023 * its command callback and not needed to be duplicated here.
6025 if (ev->status == HCI_ERROR_CANCELLED_BY_HOST) {
6026 bt_dev_warn_ratelimited(hdev, "Unexpected advertising set terminated event");
6032 adv = hci_find_adv_instance(hdev, ev->handle);
6038 /* Remove advertising as it has been terminated */
6039 hci_remove_adv_instance(hdev, ev->handle);
6040 mgmt_advertising_removed(NULL, hdev, ev->handle);
6042 list_for_each_entry_safe(adv, n, &hdev->adv_instances, list) {
6047 /* We are no longer advertising, clear HCI_LE_ADV */
6048 hci_dev_clear_flag(hdev, HCI_LE_ADV);
6053 adv->enabled = false;
6055 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->conn_handle));
6057 /* Store handle in the connection so the correct advertising
6058 * instance can be re-enabled when disconnected.
6060 conn->adv_instance = ev->handle;
6062 if (hdev->adv_addr_type != ADDR_LE_DEV_RANDOM ||
6063 bacmp(&conn->resp_addr, BDADDR_ANY))
6067 bacpy(&conn->resp_addr, &hdev->random_addr);
6072 bacpy(&conn->resp_addr, &adv->random_addr);
6076 hci_dev_unlock(hdev);
6079 static void hci_le_conn_update_complete_evt(struct hci_dev *hdev, void *data,
6080 struct sk_buff *skb)
6082 struct hci_ev_le_conn_update_complete *ev = data;
6083 struct hci_conn *conn;
6085 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
6092 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
6094 conn->le_conn_interval = le16_to_cpu(ev->interval);
6095 conn->le_conn_latency = le16_to_cpu(ev->latency);
6096 conn->le_supv_timeout = le16_to_cpu(ev->supervision_timeout);
6099 hci_dev_unlock(hdev);
6102 /* This function requires the caller holds hdev->lock */
6103 static struct hci_conn *check_pending_le_conn(struct hci_dev *hdev,
6105 u8 addr_type, bool addr_resolved,
6108 struct hci_conn *conn;
6109 struct hci_conn_params *params;
6111 /* If the event is not connectable don't proceed further */
6112 if (adv_type != LE_ADV_IND && adv_type != LE_ADV_DIRECT_IND)
6115 /* Ignore if the device is blocked or hdev is suspended */
6116 if (hci_bdaddr_list_lookup(&hdev->reject_list, addr, addr_type) ||
6120 /* Most controller will fail if we try to create new connections
6121 * while we have an existing one in peripheral role.
6123 if (hdev->conn_hash.le_num_peripheral > 0 &&
6124 (!test_bit(HCI_QUIRK_VALID_LE_STATES, &hdev->quirks) ||
6125 !(hdev->le_states[3] & 0x10)))
6128 /* If we're not connectable only connect devices that we have in
6129 * our pend_le_conns list.
6131 params = hci_pend_le_action_lookup(&hdev->pend_le_conns, addr,
6136 if (!params->explicit_connect) {
6137 switch (params->auto_connect) {
6138 case HCI_AUTO_CONN_DIRECT:
6139 /* Only devices advertising with ADV_DIRECT_IND are
6140 * triggering a connection attempt. This is allowing
6141 * incoming connections from peripheral devices.
6143 if (adv_type != LE_ADV_DIRECT_IND)
6146 case HCI_AUTO_CONN_ALWAYS:
6147 /* Devices advertising with ADV_IND or ADV_DIRECT_IND
6148 * are triggering a connection attempt. This means
6149 * that incoming connections from peripheral device are
6150 * accepted and also outgoing connections to peripheral
6151 * devices are established when found.
6159 conn = hci_connect_le(hdev, addr, addr_type, addr_resolved,
6160 BT_SECURITY_LOW, hdev->def_le_autoconnect_timeout,
6162 if (!IS_ERR(conn)) {
6163 /* If HCI_AUTO_CONN_EXPLICIT is set, conn is already owned
6164 * by higher layer that tried to connect, if no then
6165 * store the pointer since we don't really have any
6166 * other owner of the object besides the params that
6167 * triggered it. This way we can abort the connection if
6168 * the parameters get removed and keep the reference
6169 * count consistent once the connection is established.
6172 if (!params->explicit_connect)
6173 params->conn = hci_conn_get(conn);
6178 switch (PTR_ERR(conn)) {
6180 /* If hci_connect() returns -EBUSY it means there is already
6181 * an LE connection attempt going on. Since controllers don't
6182 * support more than one connection attempt at the time, we
6183 * don't consider this an error case.
6187 BT_DBG("Failed to connect: err %ld", PTR_ERR(conn));
6194 static void process_adv_report(struct hci_dev *hdev, u8 type, bdaddr_t *bdaddr,
6195 u8 bdaddr_type, bdaddr_t *direct_addr,
6196 u8 direct_addr_type, s8 rssi, u8 *data, u8 len,
6197 bool ext_adv, bool ctl_time, u64 instant)
6199 struct discovery_state *d = &hdev->discovery;
6200 struct smp_irk *irk;
6201 struct hci_conn *conn;
6202 bool match, bdaddr_resolved;
6208 case LE_ADV_DIRECT_IND:
6209 case LE_ADV_SCAN_IND:
6210 case LE_ADV_NONCONN_IND:
6211 case LE_ADV_SCAN_RSP:
6214 bt_dev_err_ratelimited(hdev, "unknown advertising packet "
6215 "type: 0x%02x", type);
6219 if (!ext_adv && len > HCI_MAX_AD_LENGTH) {
6220 bt_dev_err_ratelimited(hdev, "legacy adv larger than 31 bytes");
6224 /* Find the end of the data in case the report contains padded zero
6225 * bytes at the end causing an invalid length value.
6227 * When data is NULL, len is 0 so there is no need for extra ptr
6228 * check as 'ptr < data + 0' is already false in such case.
6230 for (ptr = data; ptr < data + len && *ptr; ptr += *ptr + 1) {
6231 if (ptr + 1 + *ptr > data + len)
6235 /* Adjust for actual length. This handles the case when remote
6236 * device is advertising with incorrect data length.
6240 /* If the direct address is present, then this report is from
6241 * a LE Direct Advertising Report event. In that case it is
6242 * important to see if the address is matching the local
6243 * controller address.
6245 if (!hci_dev_test_flag(hdev, HCI_MESH) && direct_addr) {
6246 direct_addr_type = ev_bdaddr_type(hdev, direct_addr_type,
6249 /* Only resolvable random addresses are valid for these
6250 * kind of reports and others can be ignored.
6252 if (!hci_bdaddr_is_rpa(direct_addr, direct_addr_type))
6255 /* If the controller is not using resolvable random
6256 * addresses, then this report can be ignored.
6258 if (!hci_dev_test_flag(hdev, HCI_PRIVACY))
6261 /* If the local IRK of the controller does not match
6262 * with the resolvable random address provided, then
6263 * this report can be ignored.
6265 if (!smp_irk_matches(hdev, hdev->irk, direct_addr))
6269 /* Check if we need to convert to identity address */
6270 irk = hci_get_irk(hdev, bdaddr, bdaddr_type);
6272 bdaddr = &irk->bdaddr;
6273 bdaddr_type = irk->addr_type;
6276 bdaddr_type = ev_bdaddr_type(hdev, bdaddr_type, &bdaddr_resolved);
6278 /* Check if we have been requested to connect to this device.
6280 * direct_addr is set only for directed advertising reports (it is NULL
6281 * for advertising reports) and is already verified to be RPA above.
6283 conn = check_pending_le_conn(hdev, bdaddr, bdaddr_type, bdaddr_resolved,
6285 if (!ext_adv && conn && type == LE_ADV_IND && len <= HCI_MAX_AD_LENGTH) {
6286 /* Store report for later inclusion by
6287 * mgmt_device_connected
6289 memcpy(conn->le_adv_data, data, len);
6290 conn->le_adv_data_len = len;
6293 if (type == LE_ADV_NONCONN_IND || type == LE_ADV_SCAN_IND)
6294 flags = MGMT_DEV_FOUND_NOT_CONNECTABLE;
6298 /* All scan results should be sent up for Mesh systems */
6299 if (hci_dev_test_flag(hdev, HCI_MESH)) {
6300 mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL,
6301 rssi, flags, data, len, NULL, 0, instant);
6305 /* Passive scanning shouldn't trigger any device found events,
6306 * except for devices marked as CONN_REPORT for which we do send
6307 * device found events, or advertisement monitoring requested.
6309 if (hdev->le_scan_type == LE_SCAN_PASSIVE) {
6310 if (type == LE_ADV_DIRECT_IND)
6313 if (!hci_pend_le_action_lookup(&hdev->pend_le_reports,
6314 bdaddr, bdaddr_type) &&
6315 idr_is_empty(&hdev->adv_monitors_idr))
6318 mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL,
6319 rssi, flags, data, len, NULL, 0, 0);
6323 /* When receiving a scan response, then there is no way to
6324 * know if the remote device is connectable or not. However
6325 * since scan responses are merged with a previously seen
6326 * advertising report, the flags field from that report
6329 * In the unlikely case that a controller just sends a scan
6330 * response event that doesn't match the pending report, then
6331 * it is marked as a standalone SCAN_RSP.
6333 if (type == LE_ADV_SCAN_RSP)
6334 flags = MGMT_DEV_FOUND_SCAN_RSP;
6336 /* If there's nothing pending either store the data from this
6337 * event or send an immediate device found event if the data
6338 * should not be stored for later.
6340 if (!ext_adv && !has_pending_adv_report(hdev)) {
6341 /* If the report will trigger a SCAN_REQ store it for
6344 if (type == LE_ADV_IND || type == LE_ADV_SCAN_IND) {
6345 store_pending_adv_report(hdev, bdaddr, bdaddr_type,
6346 rssi, flags, data, len);
6350 mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL,
6351 rssi, flags, data, len, NULL, 0, 0);
6355 /* Check if the pending report is for the same device as the new one */
6356 match = (!bacmp(bdaddr, &d->last_adv_addr) &&
6357 bdaddr_type == d->last_adv_addr_type);
6359 /* If the pending data doesn't match this report or this isn't a
6360 * scan response (e.g. we got a duplicate ADV_IND) then force
6361 * sending of the pending data.
6363 if (type != LE_ADV_SCAN_RSP || !match) {
6364 /* Send out whatever is in the cache, but skip duplicates */
6366 mgmt_device_found(hdev, &d->last_adv_addr, LE_LINK,
6367 d->last_adv_addr_type, NULL,
6368 d->last_adv_rssi, d->last_adv_flags,
6370 d->last_adv_data_len, NULL, 0, 0);
6372 /* If the new report will trigger a SCAN_REQ store it for
6375 if (!ext_adv && (type == LE_ADV_IND ||
6376 type == LE_ADV_SCAN_IND)) {
6377 store_pending_adv_report(hdev, bdaddr, bdaddr_type,
6378 rssi, flags, data, len);
6382 /* The advertising reports cannot be merged, so clear
6383 * the pending report and send out a device found event.
6385 clear_pending_adv_report(hdev);
6386 mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL,
6387 rssi, flags, data, len, NULL, 0, 0);
6391 /* If we get here we've got a pending ADV_IND or ADV_SCAN_IND and
6392 * the new event is a SCAN_RSP. We can therefore proceed with
6393 * sending a merged device found event.
6395 mgmt_device_found(hdev, &d->last_adv_addr, LE_LINK,
6396 d->last_adv_addr_type, NULL, rssi, d->last_adv_flags,
6397 d->last_adv_data, d->last_adv_data_len, data, len, 0);
6398 clear_pending_adv_report(hdev);
6401 static void hci_le_adv_report_evt(struct hci_dev *hdev, void *data,
6402 struct sk_buff *skb)
6404 struct hci_ev_le_advertising_report *ev = data;
6405 u64 instant = jiffies;
6413 struct hci_ev_le_advertising_info *info;
6416 info = hci_le_ev_skb_pull(hdev, skb,
6417 HCI_EV_LE_ADVERTISING_REPORT,
6422 if (!hci_le_ev_skb_pull(hdev, skb, HCI_EV_LE_ADVERTISING_REPORT,
6426 if (info->length <= HCI_MAX_AD_LENGTH) {
6427 rssi = info->data[info->length];
6428 process_adv_report(hdev, info->type, &info->bdaddr,
6429 info->bdaddr_type, NULL, 0, rssi,
6430 info->data, info->length, false,
6433 bt_dev_err(hdev, "Dropping invalid advertising data");
6437 hci_dev_unlock(hdev);
6440 static u8 ext_evt_type_to_legacy(struct hci_dev *hdev, u16 evt_type)
6442 if (evt_type & LE_EXT_ADV_LEGACY_PDU) {
6444 case LE_LEGACY_ADV_IND:
6446 case LE_LEGACY_ADV_DIRECT_IND:
6447 return LE_ADV_DIRECT_IND;
6448 case LE_LEGACY_ADV_SCAN_IND:
6449 return LE_ADV_SCAN_IND;
6450 case LE_LEGACY_NONCONN_IND:
6451 return LE_ADV_NONCONN_IND;
6452 case LE_LEGACY_SCAN_RSP_ADV:
6453 case LE_LEGACY_SCAN_RSP_ADV_SCAN:
6454 return LE_ADV_SCAN_RSP;
6460 if (evt_type & LE_EXT_ADV_CONN_IND) {
6461 if (evt_type & LE_EXT_ADV_DIRECT_IND)
6462 return LE_ADV_DIRECT_IND;
6467 if (evt_type & LE_EXT_ADV_SCAN_RSP)
6468 return LE_ADV_SCAN_RSP;
6470 if (evt_type & LE_EXT_ADV_SCAN_IND)
6471 return LE_ADV_SCAN_IND;
6473 if (evt_type == LE_EXT_ADV_NON_CONN_IND ||
6474 evt_type & LE_EXT_ADV_DIRECT_IND)
6475 return LE_ADV_NONCONN_IND;
6478 bt_dev_err_ratelimited(hdev, "Unknown advertising packet type: 0x%02x",
6481 return LE_ADV_INVALID;
6484 static void hci_le_ext_adv_report_evt(struct hci_dev *hdev, void *data,
6485 struct sk_buff *skb)
6487 struct hci_ev_le_ext_adv_report *ev = data;
6488 u64 instant = jiffies;
6496 struct hci_ev_le_ext_adv_info *info;
6500 info = hci_le_ev_skb_pull(hdev, skb, HCI_EV_LE_EXT_ADV_REPORT,
6505 if (!hci_le_ev_skb_pull(hdev, skb, HCI_EV_LE_EXT_ADV_REPORT,
6509 evt_type = __le16_to_cpu(info->type) & LE_EXT_ADV_EVT_TYPE_MASK;
6510 legacy_evt_type = ext_evt_type_to_legacy(hdev, evt_type);
6511 if (legacy_evt_type != LE_ADV_INVALID) {
6512 process_adv_report(hdev, legacy_evt_type, &info->bdaddr,
6513 info->bdaddr_type, NULL, 0,
6514 info->rssi, info->data, info->length,
6515 !(evt_type & LE_EXT_ADV_LEGACY_PDU),
6520 hci_dev_unlock(hdev);
6523 static int hci_le_pa_term_sync(struct hci_dev *hdev, __le16 handle)
6525 struct hci_cp_le_pa_term_sync cp;
6527 memset(&cp, 0, sizeof(cp));
6530 return hci_send_cmd(hdev, HCI_OP_LE_PA_TERM_SYNC, sizeof(cp), &cp);
6533 static void hci_le_pa_sync_estabilished_evt(struct hci_dev *hdev, void *data,
6534 struct sk_buff *skb)
6536 struct hci_ev_le_pa_sync_established *ev = data;
6537 int mask = hdev->link_mode;
6540 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
6547 hci_dev_clear_flag(hdev, HCI_PA_SYNC);
6549 mask |= hci_proto_connect_ind(hdev, &ev->bdaddr, ISO_LINK, &flags);
6550 if (!(mask & HCI_LM_ACCEPT))
6551 hci_le_pa_term_sync(hdev, ev->handle);
6553 hci_dev_unlock(hdev);
6556 static void hci_le_remote_feat_complete_evt(struct hci_dev *hdev, void *data,
6557 struct sk_buff *skb)
6559 struct hci_ev_le_remote_feat_complete *ev = data;
6560 struct hci_conn *conn;
6562 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
6566 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
6569 memcpy(conn->features[0], ev->features, 8);
6571 if (conn->state == BT_CONFIG) {
6574 /* If the local controller supports peripheral-initiated
6575 * features exchange, but the remote controller does
6576 * not, then it is possible that the error code 0x1a
6577 * for unsupported remote feature gets returned.
6579 * In this specific case, allow the connection to
6580 * transition into connected state and mark it as
6583 if (!conn->out && ev->status == 0x1a &&
6584 (hdev->le_features[0] & HCI_LE_PERIPHERAL_FEATURES))
6587 status = ev->status;
6589 conn->state = BT_CONNECTED;
6590 hci_connect_cfm(conn, status);
6591 hci_conn_drop(conn);
6595 hci_dev_unlock(hdev);
6598 static void hci_le_ltk_request_evt(struct hci_dev *hdev, void *data,
6599 struct sk_buff *skb)
6601 struct hci_ev_le_ltk_req *ev = data;
6602 struct hci_cp_le_ltk_reply cp;
6603 struct hci_cp_le_ltk_neg_reply neg;
6604 struct hci_conn *conn;
6605 struct smp_ltk *ltk;
6607 bt_dev_dbg(hdev, "handle 0x%4.4x", __le16_to_cpu(ev->handle));
6611 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
6615 ltk = hci_find_ltk(hdev, &conn->dst, conn->dst_type, conn->role);
6619 if (smp_ltk_is_sc(ltk)) {
6620 /* With SC both EDiv and Rand are set to zero */
6621 if (ev->ediv || ev->rand)
6624 /* For non-SC keys check that EDiv and Rand match */
6625 if (ev->ediv != ltk->ediv || ev->rand != ltk->rand)
6629 memcpy(cp.ltk, ltk->val, ltk->enc_size);
6630 memset(cp.ltk + ltk->enc_size, 0, sizeof(cp.ltk) - ltk->enc_size);
6631 cp.handle = cpu_to_le16(conn->handle);
6633 conn->pending_sec_level = smp_ltk_sec_level(ltk);
6635 conn->enc_key_size = ltk->enc_size;
6637 hci_send_cmd(hdev, HCI_OP_LE_LTK_REPLY, sizeof(cp), &cp);
6639 /* Ref. Bluetooth Core SPEC pages 1975 and 2004. STK is a
6640 * temporary key used to encrypt a connection following
6641 * pairing. It is used during the Encrypted Session Setup to
6642 * distribute the keys. Later, security can be re-established
6643 * using a distributed LTK.
6645 if (ltk->type == SMP_STK) {
6646 set_bit(HCI_CONN_STK_ENCRYPT, &conn->flags);
6647 list_del_rcu(<k->list);
6648 kfree_rcu(ltk, rcu);
6650 clear_bit(HCI_CONN_STK_ENCRYPT, &conn->flags);
6653 hci_dev_unlock(hdev);
6658 neg.handle = ev->handle;
6659 hci_send_cmd(hdev, HCI_OP_LE_LTK_NEG_REPLY, sizeof(neg), &neg);
6660 hci_dev_unlock(hdev);
6663 static void send_conn_param_neg_reply(struct hci_dev *hdev, u16 handle,
6666 struct hci_cp_le_conn_param_req_neg_reply cp;
6668 cp.handle = cpu_to_le16(handle);
6671 hci_send_cmd(hdev, HCI_OP_LE_CONN_PARAM_REQ_NEG_REPLY, sizeof(cp),
6675 static void hci_le_remote_conn_param_req_evt(struct hci_dev *hdev, void *data,
6676 struct sk_buff *skb)
6678 struct hci_ev_le_remote_conn_param_req *ev = data;
6679 struct hci_cp_le_conn_param_req_reply cp;
6680 struct hci_conn *hcon;
6681 u16 handle, min, max, latency, timeout;
6683 bt_dev_dbg(hdev, "handle 0x%4.4x", __le16_to_cpu(ev->handle));
6685 handle = le16_to_cpu(ev->handle);
6686 min = le16_to_cpu(ev->interval_min);
6687 max = le16_to_cpu(ev->interval_max);
6688 latency = le16_to_cpu(ev->latency);
6689 timeout = le16_to_cpu(ev->timeout);
6691 hcon = hci_conn_hash_lookup_handle(hdev, handle);
6692 if (!hcon || hcon->state != BT_CONNECTED)
6693 return send_conn_param_neg_reply(hdev, handle,
6694 HCI_ERROR_UNKNOWN_CONN_ID);
6696 if (hci_check_conn_params(min, max, latency, timeout))
6697 return send_conn_param_neg_reply(hdev, handle,
6698 HCI_ERROR_INVALID_LL_PARAMS);
6700 if (hcon->role == HCI_ROLE_MASTER) {
6701 struct hci_conn_params *params;
6706 params = hci_conn_params_lookup(hdev, &hcon->dst,
6709 params->conn_min_interval = min;
6710 params->conn_max_interval = max;
6711 params->conn_latency = latency;
6712 params->supervision_timeout = timeout;
6718 hci_dev_unlock(hdev);
6720 mgmt_new_conn_param(hdev, &hcon->dst, hcon->dst_type,
6721 store_hint, min, max, latency, timeout);
6724 cp.handle = ev->handle;
6725 cp.interval_min = ev->interval_min;
6726 cp.interval_max = ev->interval_max;
6727 cp.latency = ev->latency;
6728 cp.timeout = ev->timeout;
6732 hci_send_cmd(hdev, HCI_OP_LE_CONN_PARAM_REQ_REPLY, sizeof(cp), &cp);
6735 static void hci_le_direct_adv_report_evt(struct hci_dev *hdev, void *data,
6736 struct sk_buff *skb)
6738 struct hci_ev_le_direct_adv_report *ev = data;
6739 u64 instant = jiffies;
6742 if (!hci_le_ev_skb_pull(hdev, skb, HCI_EV_LE_DIRECT_ADV_REPORT,
6743 flex_array_size(ev, info, ev->num)))
6751 for (i = 0; i < ev->num; i++) {
6752 struct hci_ev_le_direct_adv_info *info = &ev->info[i];
6754 process_adv_report(hdev, info->type, &info->bdaddr,
6755 info->bdaddr_type, &info->direct_addr,
6756 info->direct_addr_type, info->rssi, NULL, 0,
6757 false, false, instant);
6760 hci_dev_unlock(hdev);
6763 static void hci_le_phy_update_evt(struct hci_dev *hdev, void *data,
6764 struct sk_buff *skb)
6766 struct hci_ev_le_phy_update_complete *ev = data;
6767 struct hci_conn *conn;
6769 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
6776 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
6780 conn->le_tx_phy = ev->tx_phy;
6781 conn->le_rx_phy = ev->rx_phy;
6784 hci_dev_unlock(hdev);
6787 static void hci_le_cis_estabilished_evt(struct hci_dev *hdev, void *data,
6788 struct sk_buff *skb)
6790 struct hci_evt_le_cis_established *ev = data;
6791 struct hci_conn *conn;
6792 struct bt_iso_qos *qos;
6793 u16 handle = __le16_to_cpu(ev->handle);
6795 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
6799 conn = hci_conn_hash_lookup_handle(hdev, handle);
6802 "Unable to find connection with handle 0x%4.4x",
6807 if (conn->type != ISO_LINK) {
6809 "Invalid connection link type handle 0x%4.4x",
6814 qos = &conn->iso_qos;
6816 /* Convert ISO Interval (1.25 ms slots) to SDU Interval (us) */
6817 qos->ucast.in.interval = le16_to_cpu(ev->interval) * 1250;
6818 qos->ucast.out.interval = qos->ucast.in.interval;
6820 switch (conn->role) {
6821 case HCI_ROLE_SLAVE:
6822 /* Convert Transport Latency (us) to Latency (msec) */
6823 qos->ucast.in.latency =
6824 DIV_ROUND_CLOSEST(get_unaligned_le24(ev->c_latency),
6826 qos->ucast.out.latency =
6827 DIV_ROUND_CLOSEST(get_unaligned_le24(ev->p_latency),
6829 qos->ucast.in.sdu = le16_to_cpu(ev->c_mtu);
6830 qos->ucast.out.sdu = le16_to_cpu(ev->p_mtu);
6831 qos->ucast.in.phy = ev->c_phy;
6832 qos->ucast.out.phy = ev->p_phy;
6834 case HCI_ROLE_MASTER:
6835 /* Convert Transport Latency (us) to Latency (msec) */
6836 qos->ucast.out.latency =
6837 DIV_ROUND_CLOSEST(get_unaligned_le24(ev->c_latency),
6839 qos->ucast.in.latency =
6840 DIV_ROUND_CLOSEST(get_unaligned_le24(ev->p_latency),
6842 qos->ucast.out.sdu = le16_to_cpu(ev->c_mtu);
6843 qos->ucast.in.sdu = le16_to_cpu(ev->p_mtu);
6844 qos->ucast.out.phy = ev->c_phy;
6845 qos->ucast.in.phy = ev->p_phy;
6850 conn->state = BT_CONNECTED;
6851 hci_debugfs_create_conn(conn);
6852 hci_conn_add_sysfs(conn);
6853 hci_iso_setup_path(conn);
6857 hci_connect_cfm(conn, ev->status);
6861 hci_dev_unlock(hdev);
6864 static void hci_le_reject_cis(struct hci_dev *hdev, __le16 handle)
6866 struct hci_cp_le_reject_cis cp;
6868 memset(&cp, 0, sizeof(cp));
6870 cp.reason = HCI_ERROR_REJ_BAD_ADDR;
6871 hci_send_cmd(hdev, HCI_OP_LE_REJECT_CIS, sizeof(cp), &cp);
6874 static void hci_le_accept_cis(struct hci_dev *hdev, __le16 handle)
6876 struct hci_cp_le_accept_cis cp;
6878 memset(&cp, 0, sizeof(cp));
6880 hci_send_cmd(hdev, HCI_OP_LE_ACCEPT_CIS, sizeof(cp), &cp);
6883 static void hci_le_cis_req_evt(struct hci_dev *hdev, void *data,
6884 struct sk_buff *skb)
6886 struct hci_evt_le_cis_req *ev = data;
6887 u16 acl_handle, cis_handle;
6888 struct hci_conn *acl, *cis;
6892 acl_handle = __le16_to_cpu(ev->acl_handle);
6893 cis_handle = __le16_to_cpu(ev->cis_handle);
6895 bt_dev_dbg(hdev, "acl 0x%4.4x handle 0x%4.4x cig 0x%2.2x cis 0x%2.2x",
6896 acl_handle, cis_handle, ev->cig_id, ev->cis_id);
6900 acl = hci_conn_hash_lookup_handle(hdev, acl_handle);
6904 mask = hci_proto_connect_ind(hdev, &acl->dst, ISO_LINK, &flags);
6905 if (!(mask & HCI_LM_ACCEPT)) {
6906 hci_le_reject_cis(hdev, ev->cis_handle);
6910 cis = hci_conn_hash_lookup_handle(hdev, cis_handle);
6912 cis = hci_conn_add(hdev, ISO_LINK, &acl->dst, HCI_ROLE_SLAVE);
6914 hci_le_reject_cis(hdev, ev->cis_handle);
6917 cis->handle = cis_handle;
6920 cis->iso_qos.ucast.cig = ev->cig_id;
6921 cis->iso_qos.ucast.cis = ev->cis_id;
6923 if (!(flags & HCI_PROTO_DEFER)) {
6924 hci_le_accept_cis(hdev, ev->cis_handle);
6926 cis->state = BT_CONNECT2;
6927 hci_connect_cfm(cis, 0);
6931 hci_dev_unlock(hdev);
6934 static void hci_le_create_big_complete_evt(struct hci_dev *hdev, void *data,
6935 struct sk_buff *skb)
6937 struct hci_evt_le_create_big_complete *ev = data;
6938 struct hci_conn *conn;
6940 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
6942 if (!hci_le_ev_skb_pull(hdev, skb, HCI_EVT_LE_CREATE_BIG_COMPLETE,
6943 flex_array_size(ev, bis_handle, ev->num_bis)))
6948 conn = hci_conn_hash_lookup_big(hdev, ev->handle);
6952 if (conn->type != ISO_LINK) {
6954 "Invalid connection link type handle 0x%2.2x",
6960 conn->handle = __le16_to_cpu(ev->bis_handle[0]);
6963 conn->state = BT_CONNECTED;
6964 hci_debugfs_create_conn(conn);
6965 hci_conn_add_sysfs(conn);
6966 hci_iso_setup_path(conn);
6970 hci_connect_cfm(conn, ev->status);
6974 hci_dev_unlock(hdev);
6977 static void hci_le_big_sync_established_evt(struct hci_dev *hdev, void *data,
6978 struct sk_buff *skb)
6980 struct hci_evt_le_big_sync_estabilished *ev = data;
6981 struct hci_conn *bis;
6984 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
6986 if (!hci_le_ev_skb_pull(hdev, skb, HCI_EVT_LE_BIG_SYNC_ESTABILISHED,
6987 flex_array_size(ev, bis, ev->num_bis)))
6995 for (i = 0; i < ev->num_bis; i++) {
6996 u16 handle = le16_to_cpu(ev->bis[i]);
6999 bis = hci_conn_hash_lookup_handle(hdev, handle);
7001 bis = hci_conn_add(hdev, ISO_LINK, BDADDR_ANY,
7005 bis->handle = handle;
7008 bis->iso_qos.bcast.big = ev->handle;
7009 memset(&interval, 0, sizeof(interval));
7010 memcpy(&interval, ev->latency, sizeof(ev->latency));
7011 bis->iso_qos.bcast.in.interval = le32_to_cpu(interval);
7012 /* Convert ISO Interval (1.25 ms slots) to latency (ms) */
7013 bis->iso_qos.bcast.in.latency = le16_to_cpu(ev->interval) * 125 / 100;
7014 bis->iso_qos.bcast.in.sdu = le16_to_cpu(ev->max_pdu);
7016 hci_iso_setup_path(bis);
7019 hci_dev_unlock(hdev);
7022 static void hci_le_big_info_adv_report_evt(struct hci_dev *hdev, void *data,
7023 struct sk_buff *skb)
7025 struct hci_evt_le_big_info_adv_report *ev = data;
7026 int mask = hdev->link_mode;
7029 bt_dev_dbg(hdev, "sync_handle 0x%4.4x", le16_to_cpu(ev->sync_handle));
7033 mask |= hci_proto_connect_ind(hdev, BDADDR_ANY, ISO_LINK, &flags);
7034 if (!(mask & HCI_LM_ACCEPT))
7035 hci_le_pa_term_sync(hdev, ev->sync_handle);
7037 hci_dev_unlock(hdev);
7040 #define HCI_LE_EV_VL(_op, _func, _min_len, _max_len) \
7043 .min_len = _min_len, \
7044 .max_len = _max_len, \
7047 #define HCI_LE_EV(_op, _func, _len) \
7048 HCI_LE_EV_VL(_op, _func, _len, _len)
7050 #define HCI_LE_EV_STATUS(_op, _func) \
7051 HCI_LE_EV(_op, _func, sizeof(struct hci_ev_status))
7053 /* Entries in this table shall have their position according to the subevent
7054 * opcode they handle so the use of the macros above is recommend since it does
7055 * attempt to initialize at its proper index using Designated Initializers that
7056 * way events without a callback function can be ommited.
7058 static const struct hci_le_ev {
7059 void (*func)(struct hci_dev *hdev, void *data, struct sk_buff *skb);
7062 } hci_le_ev_table[U8_MAX + 1] = {
7063 /* [0x01 = HCI_EV_LE_CONN_COMPLETE] */
7064 HCI_LE_EV(HCI_EV_LE_CONN_COMPLETE, hci_le_conn_complete_evt,
7065 sizeof(struct hci_ev_le_conn_complete)),
7066 /* [0x02 = HCI_EV_LE_ADVERTISING_REPORT] */
7067 HCI_LE_EV_VL(HCI_EV_LE_ADVERTISING_REPORT, hci_le_adv_report_evt,
7068 sizeof(struct hci_ev_le_advertising_report),
7069 HCI_MAX_EVENT_SIZE),
7070 /* [0x03 = HCI_EV_LE_CONN_UPDATE_COMPLETE] */
7071 HCI_LE_EV(HCI_EV_LE_CONN_UPDATE_COMPLETE,
7072 hci_le_conn_update_complete_evt,
7073 sizeof(struct hci_ev_le_conn_update_complete)),
7074 /* [0x04 = HCI_EV_LE_REMOTE_FEAT_COMPLETE] */
7075 HCI_LE_EV(HCI_EV_LE_REMOTE_FEAT_COMPLETE,
7076 hci_le_remote_feat_complete_evt,
7077 sizeof(struct hci_ev_le_remote_feat_complete)),
7078 /* [0x05 = HCI_EV_LE_LTK_REQ] */
7079 HCI_LE_EV(HCI_EV_LE_LTK_REQ, hci_le_ltk_request_evt,
7080 sizeof(struct hci_ev_le_ltk_req)),
7081 /* [0x06 = HCI_EV_LE_REMOTE_CONN_PARAM_REQ] */
7082 HCI_LE_EV(HCI_EV_LE_REMOTE_CONN_PARAM_REQ,
7083 hci_le_remote_conn_param_req_evt,
7084 sizeof(struct hci_ev_le_remote_conn_param_req)),
7085 /* [0x0a = HCI_EV_LE_ENHANCED_CONN_COMPLETE] */
7086 HCI_LE_EV(HCI_EV_LE_ENHANCED_CONN_COMPLETE,
7087 hci_le_enh_conn_complete_evt,
7088 sizeof(struct hci_ev_le_enh_conn_complete)),
7089 /* [0x0b = HCI_EV_LE_DIRECT_ADV_REPORT] */
7090 HCI_LE_EV_VL(HCI_EV_LE_DIRECT_ADV_REPORT, hci_le_direct_adv_report_evt,
7091 sizeof(struct hci_ev_le_direct_adv_report),
7092 HCI_MAX_EVENT_SIZE),
7093 /* [0x0c = HCI_EV_LE_PHY_UPDATE_COMPLETE] */
7094 HCI_LE_EV(HCI_EV_LE_PHY_UPDATE_COMPLETE, hci_le_phy_update_evt,
7095 sizeof(struct hci_ev_le_phy_update_complete)),
7096 /* [0x0d = HCI_EV_LE_EXT_ADV_REPORT] */
7097 HCI_LE_EV_VL(HCI_EV_LE_EXT_ADV_REPORT, hci_le_ext_adv_report_evt,
7098 sizeof(struct hci_ev_le_ext_adv_report),
7099 HCI_MAX_EVENT_SIZE),
7100 /* [0x0e = HCI_EV_LE_PA_SYNC_ESTABLISHED] */
7101 HCI_LE_EV(HCI_EV_LE_PA_SYNC_ESTABLISHED,
7102 hci_le_pa_sync_estabilished_evt,
7103 sizeof(struct hci_ev_le_pa_sync_established)),
7104 /* [0x12 = HCI_EV_LE_EXT_ADV_SET_TERM] */
7105 HCI_LE_EV(HCI_EV_LE_EXT_ADV_SET_TERM, hci_le_ext_adv_term_evt,
7106 sizeof(struct hci_evt_le_ext_adv_set_term)),
7107 /* [0x19 = HCI_EVT_LE_CIS_ESTABLISHED] */
7108 HCI_LE_EV(HCI_EVT_LE_CIS_ESTABLISHED, hci_le_cis_estabilished_evt,
7109 sizeof(struct hci_evt_le_cis_established)),
7110 /* [0x1a = HCI_EVT_LE_CIS_REQ] */
7111 HCI_LE_EV(HCI_EVT_LE_CIS_REQ, hci_le_cis_req_evt,
7112 sizeof(struct hci_evt_le_cis_req)),
7113 /* [0x1b = HCI_EVT_LE_CREATE_BIG_COMPLETE] */
7114 HCI_LE_EV_VL(HCI_EVT_LE_CREATE_BIG_COMPLETE,
7115 hci_le_create_big_complete_evt,
7116 sizeof(struct hci_evt_le_create_big_complete),
7117 HCI_MAX_EVENT_SIZE),
7118 /* [0x1d = HCI_EV_LE_BIG_SYNC_ESTABILISHED] */
7119 HCI_LE_EV_VL(HCI_EVT_LE_BIG_SYNC_ESTABILISHED,
7120 hci_le_big_sync_established_evt,
7121 sizeof(struct hci_evt_le_big_sync_estabilished),
7122 HCI_MAX_EVENT_SIZE),
7123 /* [0x22 = HCI_EVT_LE_BIG_INFO_ADV_REPORT] */
7124 HCI_LE_EV_VL(HCI_EVT_LE_BIG_INFO_ADV_REPORT,
7125 hci_le_big_info_adv_report_evt,
7126 sizeof(struct hci_evt_le_big_info_adv_report),
7127 HCI_MAX_EVENT_SIZE),
7130 static void hci_le_meta_evt(struct hci_dev *hdev, void *data,
7131 struct sk_buff *skb, u16 *opcode, u8 *status,
7132 hci_req_complete_t *req_complete,
7133 hci_req_complete_skb_t *req_complete_skb)
7135 struct hci_ev_le_meta *ev = data;
7136 const struct hci_le_ev *subev;
7138 bt_dev_dbg(hdev, "subevent 0x%2.2x", ev->subevent);
7140 /* Only match event if command OGF is for LE */
7141 if (hdev->sent_cmd &&
7142 hci_opcode_ogf(hci_skb_opcode(hdev->sent_cmd)) == 0x08 &&
7143 hci_skb_event(hdev->sent_cmd) == ev->subevent) {
7144 *opcode = hci_skb_opcode(hdev->sent_cmd);
7145 hci_req_cmd_complete(hdev, *opcode, 0x00, req_complete,
7149 subev = &hci_le_ev_table[ev->subevent];
7153 if (skb->len < subev->min_len) {
7154 bt_dev_err(hdev, "unexpected subevent 0x%2.2x length: %u < %u",
7155 ev->subevent, skb->len, subev->min_len);
7159 /* Just warn if the length is over max_len size it still be
7160 * possible to partially parse the event so leave to callback to
7161 * decide if that is acceptable.
7163 if (skb->len > subev->max_len)
7164 bt_dev_warn(hdev, "unexpected subevent 0x%2.2x length: %u > %u",
7165 ev->subevent, skb->len, subev->max_len);
7166 data = hci_le_ev_skb_pull(hdev, skb, ev->subevent, subev->min_len);
7170 subev->func(hdev, data, skb);
7173 static bool hci_get_cmd_complete(struct hci_dev *hdev, u16 opcode,
7174 u8 event, struct sk_buff *skb)
7176 struct hci_ev_cmd_complete *ev;
7177 struct hci_event_hdr *hdr;
7182 hdr = hci_ev_skb_pull(hdev, skb, event, sizeof(*hdr));
7187 if (hdr->evt != event)
7192 /* Check if request ended in Command Status - no way to retrieve
7193 * any extra parameters in this case.
7195 if (hdr->evt == HCI_EV_CMD_STATUS)
7198 if (hdr->evt != HCI_EV_CMD_COMPLETE) {
7199 bt_dev_err(hdev, "last event is not cmd complete (0x%2.2x)",
7204 ev = hci_cc_skb_pull(hdev, skb, opcode, sizeof(*ev));
7208 if (opcode != __le16_to_cpu(ev->opcode)) {
7209 BT_DBG("opcode doesn't match (0x%2.2x != 0x%2.2x)", opcode,
7210 __le16_to_cpu(ev->opcode));
7217 static void hci_store_wake_reason(struct hci_dev *hdev, u8 event,
7218 struct sk_buff *skb)
7220 struct hci_ev_le_advertising_info *adv;
7221 struct hci_ev_le_direct_adv_info *direct_adv;
7222 struct hci_ev_le_ext_adv_info *ext_adv;
7223 const struct hci_ev_conn_complete *conn_complete = (void *)skb->data;
7224 const struct hci_ev_conn_request *conn_request = (void *)skb->data;
7228 /* If we are currently suspended and this is the first BT event seen,
7229 * save the wake reason associated with the event.
7231 if (!hdev->suspended || hdev->wake_reason)
7234 /* Default to remote wake. Values for wake_reason are documented in the
7235 * Bluez mgmt api docs.
7237 hdev->wake_reason = MGMT_WAKE_REASON_REMOTE_WAKE;
7239 /* Once configured for remote wakeup, we should only wake up for
7240 * reconnections. It's useful to see which device is waking us up so
7241 * keep track of the bdaddr of the connection event that woke us up.
7243 if (event == HCI_EV_CONN_REQUEST) {
7244 bacpy(&hdev->wake_addr, &conn_complete->bdaddr);
7245 hdev->wake_addr_type = BDADDR_BREDR;
7246 } else if (event == HCI_EV_CONN_COMPLETE) {
7247 bacpy(&hdev->wake_addr, &conn_request->bdaddr);
7248 hdev->wake_addr_type = BDADDR_BREDR;
7249 } else if (event == HCI_EV_LE_META) {
7250 struct hci_ev_le_meta *le_ev = (void *)skb->data;
7251 u8 subevent = le_ev->subevent;
7252 u8 *ptr = &skb->data[sizeof(*le_ev)];
7253 u8 num_reports = *ptr;
7255 if ((subevent == HCI_EV_LE_ADVERTISING_REPORT ||
7256 subevent == HCI_EV_LE_DIRECT_ADV_REPORT ||
7257 subevent == HCI_EV_LE_EXT_ADV_REPORT) &&
7259 adv = (void *)(ptr + 1);
7260 direct_adv = (void *)(ptr + 1);
7261 ext_adv = (void *)(ptr + 1);
7264 case HCI_EV_LE_ADVERTISING_REPORT:
7265 bacpy(&hdev->wake_addr, &adv->bdaddr);
7266 hdev->wake_addr_type = adv->bdaddr_type;
7268 case HCI_EV_LE_DIRECT_ADV_REPORT:
7269 bacpy(&hdev->wake_addr, &direct_adv->bdaddr);
7270 hdev->wake_addr_type = direct_adv->bdaddr_type;
7272 case HCI_EV_LE_EXT_ADV_REPORT:
7273 bacpy(&hdev->wake_addr, &ext_adv->bdaddr);
7274 hdev->wake_addr_type = ext_adv->bdaddr_type;
7279 hdev->wake_reason = MGMT_WAKE_REASON_UNEXPECTED;
7283 hci_dev_unlock(hdev);
7286 #define HCI_EV_VL(_op, _func, _min_len, _max_len) \
7290 .min_len = _min_len, \
7291 .max_len = _max_len, \
7294 #define HCI_EV(_op, _func, _len) \
7295 HCI_EV_VL(_op, _func, _len, _len)
7297 #define HCI_EV_STATUS(_op, _func) \
7298 HCI_EV(_op, _func, sizeof(struct hci_ev_status))
7300 #define HCI_EV_REQ_VL(_op, _func, _min_len, _max_len) \
7303 .func_req = _func, \
7304 .min_len = _min_len, \
7305 .max_len = _max_len, \
7308 #define HCI_EV_REQ(_op, _func, _len) \
7309 HCI_EV_REQ_VL(_op, _func, _len, _len)
7311 /* Entries in this table shall have their position according to the event opcode
7312 * they handle so the use of the macros above is recommend since it does attempt
7313 * to initialize at its proper index using Designated Initializers that way
7314 * events without a callback function don't have entered.
7316 static const struct hci_ev {
7319 void (*func)(struct hci_dev *hdev, void *data,
7320 struct sk_buff *skb);
7321 void (*func_req)(struct hci_dev *hdev, void *data,
7322 struct sk_buff *skb, u16 *opcode, u8 *status,
7323 hci_req_complete_t *req_complete,
7324 hci_req_complete_skb_t *req_complete_skb);
7328 } hci_ev_table[U8_MAX + 1] = {
7329 /* [0x01 = HCI_EV_INQUIRY_COMPLETE] */
7330 HCI_EV_STATUS(HCI_EV_INQUIRY_COMPLETE, hci_inquiry_complete_evt),
7331 /* [0x02 = HCI_EV_INQUIRY_RESULT] */
7332 HCI_EV_VL(HCI_EV_INQUIRY_RESULT, hci_inquiry_result_evt,
7333 sizeof(struct hci_ev_inquiry_result), HCI_MAX_EVENT_SIZE),
7334 /* [0x03 = HCI_EV_CONN_COMPLETE] */
7335 HCI_EV(HCI_EV_CONN_COMPLETE, hci_conn_complete_evt,
7336 sizeof(struct hci_ev_conn_complete)),
7337 /* [0x04 = HCI_EV_CONN_REQUEST] */
7338 HCI_EV(HCI_EV_CONN_REQUEST, hci_conn_request_evt,
7339 sizeof(struct hci_ev_conn_request)),
7340 /* [0x05 = HCI_EV_DISCONN_COMPLETE] */
7341 HCI_EV(HCI_EV_DISCONN_COMPLETE, hci_disconn_complete_evt,
7342 sizeof(struct hci_ev_disconn_complete)),
7343 /* [0x06 = HCI_EV_AUTH_COMPLETE] */
7344 HCI_EV(HCI_EV_AUTH_COMPLETE, hci_auth_complete_evt,
7345 sizeof(struct hci_ev_auth_complete)),
7346 /* [0x07 = HCI_EV_REMOTE_NAME] */
7347 HCI_EV(HCI_EV_REMOTE_NAME, hci_remote_name_evt,
7348 sizeof(struct hci_ev_remote_name)),
7349 /* [0x08 = HCI_EV_ENCRYPT_CHANGE] */
7350 HCI_EV(HCI_EV_ENCRYPT_CHANGE, hci_encrypt_change_evt,
7351 sizeof(struct hci_ev_encrypt_change)),
7352 /* [0x09 = HCI_EV_CHANGE_LINK_KEY_COMPLETE] */
7353 HCI_EV(HCI_EV_CHANGE_LINK_KEY_COMPLETE,
7354 hci_change_link_key_complete_evt,
7355 sizeof(struct hci_ev_change_link_key_complete)),
7356 /* [0x0b = HCI_EV_REMOTE_FEATURES] */
7357 HCI_EV(HCI_EV_REMOTE_FEATURES, hci_remote_features_evt,
7358 sizeof(struct hci_ev_remote_features)),
7359 /* [0x0e = HCI_EV_CMD_COMPLETE] */
7360 HCI_EV_REQ_VL(HCI_EV_CMD_COMPLETE, hci_cmd_complete_evt,
7361 sizeof(struct hci_ev_cmd_complete), HCI_MAX_EVENT_SIZE),
7362 /* [0x0f = HCI_EV_CMD_STATUS] */
7363 HCI_EV_REQ(HCI_EV_CMD_STATUS, hci_cmd_status_evt,
7364 sizeof(struct hci_ev_cmd_status)),
7365 /* [0x10 = HCI_EV_CMD_STATUS] */
7366 HCI_EV(HCI_EV_HARDWARE_ERROR, hci_hardware_error_evt,
7367 sizeof(struct hci_ev_hardware_error)),
7368 /* [0x12 = HCI_EV_ROLE_CHANGE] */
7369 HCI_EV(HCI_EV_ROLE_CHANGE, hci_role_change_evt,
7370 sizeof(struct hci_ev_role_change)),
7371 /* [0x13 = HCI_EV_NUM_COMP_PKTS] */
7372 HCI_EV_VL(HCI_EV_NUM_COMP_PKTS, hci_num_comp_pkts_evt,
7373 sizeof(struct hci_ev_num_comp_pkts), HCI_MAX_EVENT_SIZE),
7374 /* [0x14 = HCI_EV_MODE_CHANGE] */
7375 HCI_EV(HCI_EV_MODE_CHANGE, hci_mode_change_evt,
7376 sizeof(struct hci_ev_mode_change)),
7377 /* [0x16 = HCI_EV_PIN_CODE_REQ] */
7378 HCI_EV(HCI_EV_PIN_CODE_REQ, hci_pin_code_request_evt,
7379 sizeof(struct hci_ev_pin_code_req)),
7380 /* [0x17 = HCI_EV_LINK_KEY_REQ] */
7381 HCI_EV(HCI_EV_LINK_KEY_REQ, hci_link_key_request_evt,
7382 sizeof(struct hci_ev_link_key_req)),
7383 /* [0x18 = HCI_EV_LINK_KEY_NOTIFY] */
7384 HCI_EV(HCI_EV_LINK_KEY_NOTIFY, hci_link_key_notify_evt,
7385 sizeof(struct hci_ev_link_key_notify)),
7386 /* [0x1c = HCI_EV_CLOCK_OFFSET] */
7387 HCI_EV(HCI_EV_CLOCK_OFFSET, hci_clock_offset_evt,
7388 sizeof(struct hci_ev_clock_offset)),
7389 /* [0x1d = HCI_EV_PKT_TYPE_CHANGE] */
7390 HCI_EV(HCI_EV_PKT_TYPE_CHANGE, hci_pkt_type_change_evt,
7391 sizeof(struct hci_ev_pkt_type_change)),
7392 /* [0x20 = HCI_EV_PSCAN_REP_MODE] */
7393 HCI_EV(HCI_EV_PSCAN_REP_MODE, hci_pscan_rep_mode_evt,
7394 sizeof(struct hci_ev_pscan_rep_mode)),
7395 /* [0x22 = HCI_EV_INQUIRY_RESULT_WITH_RSSI] */
7396 HCI_EV_VL(HCI_EV_INQUIRY_RESULT_WITH_RSSI,
7397 hci_inquiry_result_with_rssi_evt,
7398 sizeof(struct hci_ev_inquiry_result_rssi),
7399 HCI_MAX_EVENT_SIZE),
7400 /* [0x23 = HCI_EV_REMOTE_EXT_FEATURES] */
7401 HCI_EV(HCI_EV_REMOTE_EXT_FEATURES, hci_remote_ext_features_evt,
7402 sizeof(struct hci_ev_remote_ext_features)),
7403 /* [0x2c = HCI_EV_SYNC_CONN_COMPLETE] */
7404 HCI_EV(HCI_EV_SYNC_CONN_COMPLETE, hci_sync_conn_complete_evt,
7405 sizeof(struct hci_ev_sync_conn_complete)),
7406 /* [0x2d = HCI_EV_EXTENDED_INQUIRY_RESULT] */
7407 HCI_EV_VL(HCI_EV_EXTENDED_INQUIRY_RESULT,
7408 hci_extended_inquiry_result_evt,
7409 sizeof(struct hci_ev_ext_inquiry_result), HCI_MAX_EVENT_SIZE),
7410 /* [0x30 = HCI_EV_KEY_REFRESH_COMPLETE] */
7411 HCI_EV(HCI_EV_KEY_REFRESH_COMPLETE, hci_key_refresh_complete_evt,
7412 sizeof(struct hci_ev_key_refresh_complete)),
7413 /* [0x31 = HCI_EV_IO_CAPA_REQUEST] */
7414 HCI_EV(HCI_EV_IO_CAPA_REQUEST, hci_io_capa_request_evt,
7415 sizeof(struct hci_ev_io_capa_request)),
7416 /* [0x32 = HCI_EV_IO_CAPA_REPLY] */
7417 HCI_EV(HCI_EV_IO_CAPA_REPLY, hci_io_capa_reply_evt,
7418 sizeof(struct hci_ev_io_capa_reply)),
7419 /* [0x33 = HCI_EV_USER_CONFIRM_REQUEST] */
7420 HCI_EV(HCI_EV_USER_CONFIRM_REQUEST, hci_user_confirm_request_evt,
7421 sizeof(struct hci_ev_user_confirm_req)),
7422 /* [0x34 = HCI_EV_USER_PASSKEY_REQUEST] */
7423 HCI_EV(HCI_EV_USER_PASSKEY_REQUEST, hci_user_passkey_request_evt,
7424 sizeof(struct hci_ev_user_passkey_req)),
7425 /* [0x35 = HCI_EV_REMOTE_OOB_DATA_REQUEST] */
7426 HCI_EV(HCI_EV_REMOTE_OOB_DATA_REQUEST, hci_remote_oob_data_request_evt,
7427 sizeof(struct hci_ev_remote_oob_data_request)),
7428 /* [0x36 = HCI_EV_SIMPLE_PAIR_COMPLETE] */
7429 HCI_EV(HCI_EV_SIMPLE_PAIR_COMPLETE, hci_simple_pair_complete_evt,
7430 sizeof(struct hci_ev_simple_pair_complete)),
7431 /* [0x3b = HCI_EV_USER_PASSKEY_NOTIFY] */
7432 HCI_EV(HCI_EV_USER_PASSKEY_NOTIFY, hci_user_passkey_notify_evt,
7433 sizeof(struct hci_ev_user_passkey_notify)),
7434 /* [0x3c = HCI_EV_KEYPRESS_NOTIFY] */
7435 HCI_EV(HCI_EV_KEYPRESS_NOTIFY, hci_keypress_notify_evt,
7436 sizeof(struct hci_ev_keypress_notify)),
7437 /* [0x3d = HCI_EV_REMOTE_HOST_FEATURES] */
7438 HCI_EV(HCI_EV_REMOTE_HOST_FEATURES, hci_remote_host_features_evt,
7439 sizeof(struct hci_ev_remote_host_features)),
7440 /* [0x3e = HCI_EV_LE_META] */
7441 HCI_EV_REQ_VL(HCI_EV_LE_META, hci_le_meta_evt,
7442 sizeof(struct hci_ev_le_meta), HCI_MAX_EVENT_SIZE),
7443 #if IS_ENABLED(CONFIG_BT_HS)
7444 /* [0x40 = HCI_EV_PHY_LINK_COMPLETE] */
7445 HCI_EV(HCI_EV_PHY_LINK_COMPLETE, hci_phy_link_complete_evt,
7446 sizeof(struct hci_ev_phy_link_complete)),
7447 /* [0x41 = HCI_EV_CHANNEL_SELECTED] */
7448 HCI_EV(HCI_EV_CHANNEL_SELECTED, hci_chan_selected_evt,
7449 sizeof(struct hci_ev_channel_selected)),
7450 /* [0x42 = HCI_EV_DISCONN_PHY_LINK_COMPLETE] */
7451 HCI_EV(HCI_EV_DISCONN_LOGICAL_LINK_COMPLETE,
7452 hci_disconn_loglink_complete_evt,
7453 sizeof(struct hci_ev_disconn_logical_link_complete)),
7454 /* [0x45 = HCI_EV_LOGICAL_LINK_COMPLETE] */
7455 HCI_EV(HCI_EV_LOGICAL_LINK_COMPLETE, hci_loglink_complete_evt,
7456 sizeof(struct hci_ev_logical_link_complete)),
7457 /* [0x46 = HCI_EV_DISCONN_LOGICAL_LINK_COMPLETE] */
7458 HCI_EV(HCI_EV_DISCONN_PHY_LINK_COMPLETE,
7459 hci_disconn_phylink_complete_evt,
7460 sizeof(struct hci_ev_disconn_phy_link_complete)),
7462 /* [0x48 = HCI_EV_NUM_COMP_BLOCKS] */
7463 HCI_EV(HCI_EV_NUM_COMP_BLOCKS, hci_num_comp_blocks_evt,
7464 sizeof(struct hci_ev_num_comp_blocks)),
7465 /* [0xff = HCI_EV_VENDOR] */
7466 HCI_EV_VL(HCI_EV_VENDOR, msft_vendor_evt, 0, HCI_MAX_EVENT_SIZE),
7469 static void hci_event_func(struct hci_dev *hdev, u8 event, struct sk_buff *skb,
7470 u16 *opcode, u8 *status,
7471 hci_req_complete_t *req_complete,
7472 hci_req_complete_skb_t *req_complete_skb)
7474 const struct hci_ev *ev = &hci_ev_table[event];
7480 if (skb->len < ev->min_len) {
7481 bt_dev_err(hdev, "unexpected event 0x%2.2x length: %u < %u",
7482 event, skb->len, ev->min_len);
7486 /* Just warn if the length is over max_len size it still be
7487 * possible to partially parse the event so leave to callback to
7488 * decide if that is acceptable.
7490 if (skb->len > ev->max_len)
7491 bt_dev_warn_ratelimited(hdev,
7492 "unexpected event 0x%2.2x length: %u > %u",
7493 event, skb->len, ev->max_len);
7495 data = hci_ev_skb_pull(hdev, skb, event, ev->min_len);
7500 ev->func_req(hdev, data, skb, opcode, status, req_complete,
7503 ev->func(hdev, data, skb);
7506 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb)
7508 struct hci_event_hdr *hdr = (void *) skb->data;
7509 hci_req_complete_t req_complete = NULL;
7510 hci_req_complete_skb_t req_complete_skb = NULL;
7511 struct sk_buff *orig_skb = NULL;
7512 u8 status = 0, event, req_evt = 0;
7513 u16 opcode = HCI_OP_NOP;
7515 if (skb->len < sizeof(*hdr)) {
7516 bt_dev_err(hdev, "Malformed HCI Event");
7520 kfree_skb(hdev->recv_event);
7521 hdev->recv_event = skb_clone(skb, GFP_KERNEL);
7525 bt_dev_warn(hdev, "Received unexpected HCI Event 0x%2.2x",
7530 /* Only match event if command OGF is not for LE */
7531 if (hdev->sent_cmd &&
7532 hci_opcode_ogf(hci_skb_opcode(hdev->sent_cmd)) != 0x08 &&
7533 hci_skb_event(hdev->sent_cmd) == event) {
7534 hci_req_cmd_complete(hdev, hci_skb_opcode(hdev->sent_cmd),
7535 status, &req_complete, &req_complete_skb);
7539 /* If it looks like we might end up having to call
7540 * req_complete_skb, store a pristine copy of the skb since the
7541 * various handlers may modify the original one through
7542 * skb_pull() calls, etc.
7544 if (req_complete_skb || event == HCI_EV_CMD_STATUS ||
7545 event == HCI_EV_CMD_COMPLETE)
7546 orig_skb = skb_clone(skb, GFP_KERNEL);
7548 skb_pull(skb, HCI_EVENT_HDR_SIZE);
7550 /* Store wake reason if we're suspended */
7551 hci_store_wake_reason(hdev, event, skb);
7553 bt_dev_dbg(hdev, "event 0x%2.2x", event);
7555 hci_event_func(hdev, event, skb, &opcode, &status, &req_complete,
7559 req_complete(hdev, status, opcode);
7560 } else if (req_complete_skb) {
7561 if (!hci_get_cmd_complete(hdev, opcode, req_evt, orig_skb)) {
7562 kfree_skb(orig_skb);
7565 req_complete_skb(hdev, status, opcode, orig_skb);
7569 kfree_skb(orig_skb);
7571 hdev->stat.evt_rx++;