2 BlueZ - Bluetooth protocol stack for Linux
3 Copyright (c) 2000-2001, 2010, Code Aurora Forum. All rights reserved.
5 Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License version 2 as
9 published by the Free Software Foundation;
11 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
12 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
13 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
14 IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
15 CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
16 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
17 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
18 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
20 ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
21 COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
22 SOFTWARE IS DISCLAIMED.
25 /* Bluetooth HCI event handling. */
27 #include <asm/unaligned.h>
29 #include <net/bluetooth/bluetooth.h>
30 #include <net/bluetooth/hci_core.h>
31 #include <net/bluetooth/mgmt.h>
33 #include "hci_request.h"
34 #include "hci_debugfs.h"
41 #define ZERO_KEY "\x00\x00\x00\x00\x00\x00\x00\x00" \
42 "\x00\x00\x00\x00\x00\x00\x00\x00"
44 #define secs_to_jiffies(_secs) msecs_to_jiffies((_secs) * 1000)
46 /* Handle HCI Event packets */
48 static void *hci_ev_skb_pull(struct hci_dev *hdev, struct sk_buff *skb,
53 data = skb_pull_data(skb, len);
55 bt_dev_err(hdev, "Malformed Event: 0x%2.2x", ev);
60 static void *hci_cc_skb_pull(struct hci_dev *hdev, struct sk_buff *skb,
65 data = skb_pull_data(skb, len);
67 bt_dev_err(hdev, "Malformed Command Complete: 0x%4.4x", op);
72 static void *hci_le_ev_skb_pull(struct hci_dev *hdev, struct sk_buff *skb,
77 data = skb_pull_data(skb, len);
79 bt_dev_err(hdev, "Malformed LE Event: 0x%2.2x", ev);
84 static u8 hci_cc_inquiry_cancel(struct hci_dev *hdev, void *data,
87 struct hci_ev_status *rp = data;
89 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
91 /* It is possible that we receive Inquiry Complete event right
92 * before we receive Inquiry Cancel Command Complete event, in
93 * which case the latter event should have status of Command
94 * Disallowed (0x0c). This should not be treated as error, since
95 * we actually achieve what Inquiry Cancel wants to achieve,
96 * which is to end the last Inquiry session.
98 if (rp->status == 0x0c && !test_bit(HCI_INQUIRY, &hdev->flags)) {
99 bt_dev_warn(hdev, "Ignoring error of Inquiry Cancel command");
106 clear_bit(HCI_INQUIRY, &hdev->flags);
107 smp_mb__after_atomic(); /* wake_up_bit advises about this barrier */
108 wake_up_bit(&hdev->flags, HCI_INQUIRY);
111 /* Set discovery state to stopped if we're not doing LE active
114 if (!hci_dev_test_flag(hdev, HCI_LE_SCAN) ||
115 hdev->le_scan_type != LE_SCAN_ACTIVE)
116 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
117 hci_dev_unlock(hdev);
119 hci_conn_check_pending(hdev);
124 static u8 hci_cc_periodic_inq(struct hci_dev *hdev, void *data,
127 struct hci_ev_status *rp = data;
129 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
134 hci_dev_set_flag(hdev, HCI_PERIODIC_INQ);
139 static u8 hci_cc_exit_periodic_inq(struct hci_dev *hdev, void *data,
142 struct hci_ev_status *rp = data;
144 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
149 hci_dev_clear_flag(hdev, HCI_PERIODIC_INQ);
151 hci_conn_check_pending(hdev);
156 static u8 hci_cc_remote_name_req_cancel(struct hci_dev *hdev, void *data,
159 struct hci_ev_status *rp = data;
161 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
166 static u8 hci_cc_role_discovery(struct hci_dev *hdev, void *data,
169 struct hci_rp_role_discovery *rp = data;
170 struct hci_conn *conn;
172 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
179 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
181 conn->role = rp->role;
183 hci_dev_unlock(hdev);
188 static u8 hci_cc_read_link_policy(struct hci_dev *hdev, void *data,
191 struct hci_rp_read_link_policy *rp = data;
192 struct hci_conn *conn;
194 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
201 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
203 conn->link_policy = __le16_to_cpu(rp->policy);
205 hci_dev_unlock(hdev);
210 static u8 hci_cc_write_link_policy(struct hci_dev *hdev, void *data,
213 struct hci_rp_write_link_policy *rp = data;
214 struct hci_conn *conn;
217 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
222 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LINK_POLICY);
228 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
230 conn->link_policy = get_unaligned_le16(sent + 2);
232 hci_dev_unlock(hdev);
237 static u8 hci_cc_read_def_link_policy(struct hci_dev *hdev, void *data,
240 struct hci_rp_read_def_link_policy *rp = data;
242 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
247 hdev->link_policy = __le16_to_cpu(rp->policy);
252 static u8 hci_cc_write_def_link_policy(struct hci_dev *hdev, void *data,
255 struct hci_ev_status *rp = data;
258 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
263 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_DEF_LINK_POLICY);
267 hdev->link_policy = get_unaligned_le16(sent);
272 static u8 hci_cc_reset(struct hci_dev *hdev, void *data, struct sk_buff *skb)
274 struct hci_ev_status *rp = data;
276 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
278 clear_bit(HCI_RESET, &hdev->flags);
283 /* Reset all non-persistent flags */
284 hci_dev_clear_volatile_flags(hdev);
286 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
288 hdev->inq_tx_power = HCI_TX_POWER_INVALID;
289 hdev->adv_tx_power = HCI_TX_POWER_INVALID;
291 memset(hdev->adv_data, 0, sizeof(hdev->adv_data));
292 hdev->adv_data_len = 0;
294 memset(hdev->scan_rsp_data, 0, sizeof(hdev->scan_rsp_data));
295 hdev->scan_rsp_data_len = 0;
297 hdev->le_scan_type = LE_SCAN_PASSIVE;
299 hdev->ssp_debug_mode = 0;
301 hci_bdaddr_list_clear(&hdev->le_accept_list);
302 hci_bdaddr_list_clear(&hdev->le_resolv_list);
307 static u8 hci_cc_read_stored_link_key(struct hci_dev *hdev, void *data,
310 struct hci_rp_read_stored_link_key *rp = data;
311 struct hci_cp_read_stored_link_key *sent;
313 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
315 sent = hci_sent_cmd_data(hdev, HCI_OP_READ_STORED_LINK_KEY);
319 if (!rp->status && sent->read_all == 0x01) {
320 hdev->stored_max_keys = le16_to_cpu(rp->max_keys);
321 hdev->stored_num_keys = le16_to_cpu(rp->num_keys);
327 static u8 hci_cc_delete_stored_link_key(struct hci_dev *hdev, void *data,
330 struct hci_rp_delete_stored_link_key *rp = data;
333 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
338 num_keys = le16_to_cpu(rp->num_keys);
340 if (num_keys <= hdev->stored_num_keys)
341 hdev->stored_num_keys -= num_keys;
343 hdev->stored_num_keys = 0;
348 static u8 hci_cc_write_local_name(struct hci_dev *hdev, void *data,
351 struct hci_ev_status *rp = data;
354 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
356 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LOCAL_NAME);
362 if (hci_dev_test_flag(hdev, HCI_MGMT))
363 mgmt_set_local_name_complete(hdev, sent, rp->status);
364 else if (!rp->status)
365 memcpy(hdev->dev_name, sent, HCI_MAX_NAME_LENGTH);
367 hci_dev_unlock(hdev);
372 static u8 hci_cc_read_local_name(struct hci_dev *hdev, void *data,
375 struct hci_rp_read_local_name *rp = data;
377 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
382 if (hci_dev_test_flag(hdev, HCI_SETUP) ||
383 hci_dev_test_flag(hdev, HCI_CONFIG))
384 memcpy(hdev->dev_name, rp->name, HCI_MAX_NAME_LENGTH);
389 static u8 hci_cc_write_auth_enable(struct hci_dev *hdev, void *data,
392 struct hci_ev_status *rp = data;
395 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
397 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_AUTH_ENABLE);
404 __u8 param = *((__u8 *) sent);
406 if (param == AUTH_ENABLED)
407 set_bit(HCI_AUTH, &hdev->flags);
409 clear_bit(HCI_AUTH, &hdev->flags);
412 if (hci_dev_test_flag(hdev, HCI_MGMT))
413 mgmt_auth_enable_complete(hdev, rp->status);
415 hci_dev_unlock(hdev);
420 static u8 hci_cc_write_encrypt_mode(struct hci_dev *hdev, void *data,
423 struct hci_ev_status *rp = data;
427 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
432 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_ENCRYPT_MODE);
436 param = *((__u8 *) sent);
439 set_bit(HCI_ENCRYPT, &hdev->flags);
441 clear_bit(HCI_ENCRYPT, &hdev->flags);
446 static u8 hci_cc_write_scan_enable(struct hci_dev *hdev, void *data,
449 struct hci_ev_status *rp = data;
453 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
455 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SCAN_ENABLE);
459 param = *((__u8 *) sent);
464 hdev->discov_timeout = 0;
468 if (param & SCAN_INQUIRY)
469 set_bit(HCI_ISCAN, &hdev->flags);
471 clear_bit(HCI_ISCAN, &hdev->flags);
473 if (param & SCAN_PAGE)
474 set_bit(HCI_PSCAN, &hdev->flags);
476 clear_bit(HCI_PSCAN, &hdev->flags);
479 hci_dev_unlock(hdev);
484 static u8 hci_cc_set_event_filter(struct hci_dev *hdev, void *data,
487 struct hci_ev_status *rp = data;
488 struct hci_cp_set_event_filter *cp;
491 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
496 sent = hci_sent_cmd_data(hdev, HCI_OP_SET_EVENT_FLT);
500 cp = (struct hci_cp_set_event_filter *)sent;
502 if (cp->flt_type == HCI_FLT_CLEAR_ALL)
503 hci_dev_clear_flag(hdev, HCI_EVENT_FILTER_CONFIGURED);
505 hci_dev_set_flag(hdev, HCI_EVENT_FILTER_CONFIGURED);
510 static u8 hci_cc_read_class_of_dev(struct hci_dev *hdev, void *data,
513 struct hci_rp_read_class_of_dev *rp = data;
515 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
520 memcpy(hdev->dev_class, rp->dev_class, 3);
522 bt_dev_dbg(hdev, "class 0x%.2x%.2x%.2x", hdev->dev_class[2],
523 hdev->dev_class[1], hdev->dev_class[0]);
528 static u8 hci_cc_write_class_of_dev(struct hci_dev *hdev, void *data,
531 struct hci_ev_status *rp = data;
534 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
536 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_CLASS_OF_DEV);
543 memcpy(hdev->dev_class, sent, 3);
545 if (hci_dev_test_flag(hdev, HCI_MGMT))
546 mgmt_set_class_of_dev_complete(hdev, sent, rp->status);
548 hci_dev_unlock(hdev);
553 static u8 hci_cc_read_voice_setting(struct hci_dev *hdev, void *data,
556 struct hci_rp_read_voice_setting *rp = data;
559 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
564 setting = __le16_to_cpu(rp->voice_setting);
566 if (hdev->voice_setting == setting)
569 hdev->voice_setting = setting;
571 bt_dev_dbg(hdev, "voice setting 0x%4.4x", setting);
574 hdev->notify(hdev, HCI_NOTIFY_VOICE_SETTING);
579 static u8 hci_cc_write_voice_setting(struct hci_dev *hdev, void *data,
582 struct hci_ev_status *rp = data;
586 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
591 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_VOICE_SETTING);
595 setting = get_unaligned_le16(sent);
597 if (hdev->voice_setting == setting)
600 hdev->voice_setting = setting;
602 bt_dev_dbg(hdev, "voice setting 0x%4.4x", setting);
605 hdev->notify(hdev, HCI_NOTIFY_VOICE_SETTING);
610 static u8 hci_cc_read_num_supported_iac(struct hci_dev *hdev, void *data,
613 struct hci_rp_read_num_supported_iac *rp = data;
615 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
620 hdev->num_iac = rp->num_iac;
622 bt_dev_dbg(hdev, "num iac %d", hdev->num_iac);
627 static u8 hci_cc_write_ssp_mode(struct hci_dev *hdev, void *data,
630 struct hci_ev_status *rp = data;
631 struct hci_cp_write_ssp_mode *sent;
633 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
635 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SSP_MODE);
643 hdev->features[1][0] |= LMP_HOST_SSP;
645 hdev->features[1][0] &= ~LMP_HOST_SSP;
650 hci_dev_set_flag(hdev, HCI_SSP_ENABLED);
652 hci_dev_clear_flag(hdev, HCI_SSP_ENABLED);
655 hci_dev_unlock(hdev);
660 static u8 hci_cc_write_sc_support(struct hci_dev *hdev, void *data,
663 struct hci_ev_status *rp = data;
664 struct hci_cp_write_sc_support *sent;
666 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
668 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SC_SUPPORT);
676 hdev->features[1][0] |= LMP_HOST_SC;
678 hdev->features[1][0] &= ~LMP_HOST_SC;
681 if (!hci_dev_test_flag(hdev, HCI_MGMT) && !rp->status) {
683 hci_dev_set_flag(hdev, HCI_SC_ENABLED);
685 hci_dev_clear_flag(hdev, HCI_SC_ENABLED);
688 hci_dev_unlock(hdev);
693 static u8 hci_cc_read_local_version(struct hci_dev *hdev, void *data,
696 struct hci_rp_read_local_version *rp = data;
698 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
703 if (hci_dev_test_flag(hdev, HCI_SETUP) ||
704 hci_dev_test_flag(hdev, HCI_CONFIG)) {
705 hdev->hci_ver = rp->hci_ver;
706 hdev->hci_rev = __le16_to_cpu(rp->hci_rev);
707 hdev->lmp_ver = rp->lmp_ver;
708 hdev->manufacturer = __le16_to_cpu(rp->manufacturer);
709 hdev->lmp_subver = __le16_to_cpu(rp->lmp_subver);
715 static u8 hci_cc_read_enc_key_size(struct hci_dev *hdev, void *data,
718 struct hci_rp_read_enc_key_size *rp = data;
719 struct hci_conn *conn;
721 u8 status = rp->status;
723 bt_dev_dbg(hdev, "status 0x%2.2x", status);
725 handle = le16_to_cpu(rp->handle);
729 conn = hci_conn_hash_lookup_handle(hdev, handle);
735 /* While unexpected, the read_enc_key_size command may fail. The most
736 * secure approach is to then assume the key size is 0 to force a
740 bt_dev_err(hdev, "failed to read key size for handle %u",
742 conn->enc_key_size = 0;
744 conn->enc_key_size = rp->key_size;
748 hci_encrypt_cfm(conn, 0);
751 hci_dev_unlock(hdev);
756 static u8 hci_cc_read_local_commands(struct hci_dev *hdev, void *data,
759 struct hci_rp_read_local_commands *rp = data;
761 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
766 if (hci_dev_test_flag(hdev, HCI_SETUP) ||
767 hci_dev_test_flag(hdev, HCI_CONFIG))
768 memcpy(hdev->commands, rp->commands, sizeof(hdev->commands));
773 static u8 hci_cc_read_auth_payload_timeout(struct hci_dev *hdev, void *data,
776 struct hci_rp_read_auth_payload_to *rp = data;
777 struct hci_conn *conn;
779 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
786 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
788 conn->auth_payload_timeout = __le16_to_cpu(rp->timeout);
790 hci_dev_unlock(hdev);
795 static u8 hci_cc_write_auth_payload_timeout(struct hci_dev *hdev, void *data,
798 struct hci_rp_write_auth_payload_to *rp = data;
799 struct hci_conn *conn;
802 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
807 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_AUTH_PAYLOAD_TO);
813 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
815 conn->auth_payload_timeout = get_unaligned_le16(sent + 2);
817 hci_dev_unlock(hdev);
822 static u8 hci_cc_read_local_features(struct hci_dev *hdev, void *data,
825 struct hci_rp_read_local_features *rp = data;
827 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
832 memcpy(hdev->features, rp->features, 8);
834 /* Adjust default settings according to features
835 * supported by device. */
837 if (hdev->features[0][0] & LMP_3SLOT)
838 hdev->pkt_type |= (HCI_DM3 | HCI_DH3);
840 if (hdev->features[0][0] & LMP_5SLOT)
841 hdev->pkt_type |= (HCI_DM5 | HCI_DH5);
843 if (hdev->features[0][1] & LMP_HV2) {
844 hdev->pkt_type |= (HCI_HV2);
845 hdev->esco_type |= (ESCO_HV2);
848 if (hdev->features[0][1] & LMP_HV3) {
849 hdev->pkt_type |= (HCI_HV3);
850 hdev->esco_type |= (ESCO_HV3);
853 if (lmp_esco_capable(hdev))
854 hdev->esco_type |= (ESCO_EV3);
856 if (hdev->features[0][4] & LMP_EV4)
857 hdev->esco_type |= (ESCO_EV4);
859 if (hdev->features[0][4] & LMP_EV5)
860 hdev->esco_type |= (ESCO_EV5);
862 if (hdev->features[0][5] & LMP_EDR_ESCO_2M)
863 hdev->esco_type |= (ESCO_2EV3);
865 if (hdev->features[0][5] & LMP_EDR_ESCO_3M)
866 hdev->esco_type |= (ESCO_3EV3);
868 if (hdev->features[0][5] & LMP_EDR_3S_ESCO)
869 hdev->esco_type |= (ESCO_2EV5 | ESCO_3EV5);
874 static u8 hci_cc_read_local_ext_features(struct hci_dev *hdev, void *data,
877 struct hci_rp_read_local_ext_features *rp = data;
879 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
884 if (hdev->max_page < rp->max_page) {
885 if (test_bit(HCI_QUIRK_BROKEN_LOCAL_EXT_FEATURES_PAGE_2,
887 bt_dev_warn(hdev, "broken local ext features page 2");
889 hdev->max_page = rp->max_page;
892 if (rp->page < HCI_MAX_PAGES)
893 memcpy(hdev->features[rp->page], rp->features, 8);
898 static u8 hci_cc_read_flow_control_mode(struct hci_dev *hdev, void *data,
901 struct hci_rp_read_flow_control_mode *rp = data;
903 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
908 hdev->flow_ctl_mode = rp->mode;
913 static u8 hci_cc_read_buffer_size(struct hci_dev *hdev, void *data,
916 struct hci_rp_read_buffer_size *rp = data;
918 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
923 hdev->acl_mtu = __le16_to_cpu(rp->acl_mtu);
924 hdev->sco_mtu = rp->sco_mtu;
925 hdev->acl_pkts = __le16_to_cpu(rp->acl_max_pkt);
926 hdev->sco_pkts = __le16_to_cpu(rp->sco_max_pkt);
928 if (test_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks)) {
933 hdev->acl_cnt = hdev->acl_pkts;
934 hdev->sco_cnt = hdev->sco_pkts;
936 BT_DBG("%s acl mtu %d:%d sco mtu %d:%d", hdev->name, hdev->acl_mtu,
937 hdev->acl_pkts, hdev->sco_mtu, hdev->sco_pkts);
942 static u8 hci_cc_read_bd_addr(struct hci_dev *hdev, void *data,
945 struct hci_rp_read_bd_addr *rp = data;
947 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
952 if (test_bit(HCI_INIT, &hdev->flags))
953 bacpy(&hdev->bdaddr, &rp->bdaddr);
955 if (hci_dev_test_flag(hdev, HCI_SETUP))
956 bacpy(&hdev->setup_addr, &rp->bdaddr);
961 static u8 hci_cc_read_local_pairing_opts(struct hci_dev *hdev, void *data,
964 struct hci_rp_read_local_pairing_opts *rp = data;
966 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
971 if (hci_dev_test_flag(hdev, HCI_SETUP) ||
972 hci_dev_test_flag(hdev, HCI_CONFIG)) {
973 hdev->pairing_opts = rp->pairing_opts;
974 hdev->max_enc_key_size = rp->max_key_size;
980 static u8 hci_cc_read_page_scan_activity(struct hci_dev *hdev, void *data,
983 struct hci_rp_read_page_scan_activity *rp = data;
985 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
990 if (test_bit(HCI_INIT, &hdev->flags)) {
991 hdev->page_scan_interval = __le16_to_cpu(rp->interval);
992 hdev->page_scan_window = __le16_to_cpu(rp->window);
998 static u8 hci_cc_write_page_scan_activity(struct hci_dev *hdev, void *data,
1001 struct hci_ev_status *rp = data;
1002 struct hci_cp_write_page_scan_activity *sent;
1004 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1009 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_PAGE_SCAN_ACTIVITY);
1013 hdev->page_scan_interval = __le16_to_cpu(sent->interval);
1014 hdev->page_scan_window = __le16_to_cpu(sent->window);
1019 static u8 hci_cc_read_page_scan_type(struct hci_dev *hdev, void *data,
1020 struct sk_buff *skb)
1022 struct hci_rp_read_page_scan_type *rp = data;
1024 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1029 if (test_bit(HCI_INIT, &hdev->flags))
1030 hdev->page_scan_type = rp->type;
1035 static u8 hci_cc_write_page_scan_type(struct hci_dev *hdev, void *data,
1036 struct sk_buff *skb)
1038 struct hci_ev_status *rp = data;
1041 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1046 type = hci_sent_cmd_data(hdev, HCI_OP_WRITE_PAGE_SCAN_TYPE);
1048 hdev->page_scan_type = *type;
1053 static u8 hci_cc_read_data_block_size(struct hci_dev *hdev, void *data,
1054 struct sk_buff *skb)
1056 struct hci_rp_read_data_block_size *rp = data;
1058 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1063 hdev->block_mtu = __le16_to_cpu(rp->max_acl_len);
1064 hdev->block_len = __le16_to_cpu(rp->block_len);
1065 hdev->num_blocks = __le16_to_cpu(rp->num_blocks);
1067 hdev->block_cnt = hdev->num_blocks;
1069 BT_DBG("%s blk mtu %d cnt %d len %d", hdev->name, hdev->block_mtu,
1070 hdev->block_cnt, hdev->block_len);
1075 static u8 hci_cc_read_clock(struct hci_dev *hdev, void *data,
1076 struct sk_buff *skb)
1078 struct hci_rp_read_clock *rp = data;
1079 struct hci_cp_read_clock *cp;
1080 struct hci_conn *conn;
1082 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1089 cp = hci_sent_cmd_data(hdev, HCI_OP_READ_CLOCK);
1093 if (cp->which == 0x00) {
1094 hdev->clock = le32_to_cpu(rp->clock);
1098 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
1100 conn->clock = le32_to_cpu(rp->clock);
1101 conn->clock_accuracy = le16_to_cpu(rp->accuracy);
1105 hci_dev_unlock(hdev);
1109 static u8 hci_cc_read_local_amp_info(struct hci_dev *hdev, void *data,
1110 struct sk_buff *skb)
1112 struct hci_rp_read_local_amp_info *rp = data;
1114 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1119 hdev->amp_status = rp->amp_status;
1120 hdev->amp_total_bw = __le32_to_cpu(rp->total_bw);
1121 hdev->amp_max_bw = __le32_to_cpu(rp->max_bw);
1122 hdev->amp_min_latency = __le32_to_cpu(rp->min_latency);
1123 hdev->amp_max_pdu = __le32_to_cpu(rp->max_pdu);
1124 hdev->amp_type = rp->amp_type;
1125 hdev->amp_pal_cap = __le16_to_cpu(rp->pal_cap);
1126 hdev->amp_assoc_size = __le16_to_cpu(rp->max_assoc_size);
1127 hdev->amp_be_flush_to = __le32_to_cpu(rp->be_flush_to);
1128 hdev->amp_max_flush_to = __le32_to_cpu(rp->max_flush_to);
1133 static u8 hci_cc_read_inq_rsp_tx_power(struct hci_dev *hdev, void *data,
1134 struct sk_buff *skb)
1136 struct hci_rp_read_inq_rsp_tx_power *rp = data;
1138 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1143 hdev->inq_tx_power = rp->tx_power;
1148 static u8 hci_cc_read_def_err_data_reporting(struct hci_dev *hdev, void *data,
1149 struct sk_buff *skb)
1151 struct hci_rp_read_def_err_data_reporting *rp = data;
1153 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1158 hdev->err_data_reporting = rp->err_data_reporting;
1163 static u8 hci_cc_write_def_err_data_reporting(struct hci_dev *hdev, void *data,
1164 struct sk_buff *skb)
1166 struct hci_ev_status *rp = data;
1167 struct hci_cp_write_def_err_data_reporting *cp;
1169 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1174 cp = hci_sent_cmd_data(hdev, HCI_OP_WRITE_DEF_ERR_DATA_REPORTING);
1178 hdev->err_data_reporting = cp->err_data_reporting;
1183 static u8 hci_cc_pin_code_reply(struct hci_dev *hdev, void *data,
1184 struct sk_buff *skb)
1186 struct hci_rp_pin_code_reply *rp = data;
1187 struct hci_cp_pin_code_reply *cp;
1188 struct hci_conn *conn;
1190 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1194 if (hci_dev_test_flag(hdev, HCI_MGMT))
1195 mgmt_pin_code_reply_complete(hdev, &rp->bdaddr, rp->status);
1200 cp = hci_sent_cmd_data(hdev, HCI_OP_PIN_CODE_REPLY);
1204 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
1206 conn->pin_length = cp->pin_len;
1209 hci_dev_unlock(hdev);
1213 static u8 hci_cc_pin_code_neg_reply(struct hci_dev *hdev, void *data,
1214 struct sk_buff *skb)
1216 struct hci_rp_pin_code_neg_reply *rp = data;
1218 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1222 if (hci_dev_test_flag(hdev, HCI_MGMT))
1223 mgmt_pin_code_neg_reply_complete(hdev, &rp->bdaddr,
1226 hci_dev_unlock(hdev);
1231 static u8 hci_cc_le_read_buffer_size(struct hci_dev *hdev, void *data,
1232 struct sk_buff *skb)
1234 struct hci_rp_le_read_buffer_size *rp = data;
1236 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1241 hdev->le_mtu = __le16_to_cpu(rp->le_mtu);
1242 hdev->le_pkts = rp->le_max_pkt;
1244 hdev->le_cnt = hdev->le_pkts;
1246 BT_DBG("%s le mtu %d:%d", hdev->name, hdev->le_mtu, hdev->le_pkts);
1251 static u8 hci_cc_le_read_local_features(struct hci_dev *hdev, void *data,
1252 struct sk_buff *skb)
1254 struct hci_rp_le_read_local_features *rp = data;
1256 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
1261 memcpy(hdev->le_features, rp->features, 8);
1266 static u8 hci_cc_le_read_adv_tx_power(struct hci_dev *hdev, void *data,
1267 struct sk_buff *skb)
1269 struct hci_rp_le_read_adv_tx_power *rp = data;
1271 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1276 hdev->adv_tx_power = rp->tx_power;
1281 static u8 hci_cc_user_confirm_reply(struct hci_dev *hdev, void *data,
1282 struct sk_buff *skb)
1284 struct hci_rp_user_confirm_reply *rp = data;
1286 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1290 if (hci_dev_test_flag(hdev, HCI_MGMT))
1291 mgmt_user_confirm_reply_complete(hdev, &rp->bdaddr, ACL_LINK, 0,
1294 hci_dev_unlock(hdev);
1299 static u8 hci_cc_user_confirm_neg_reply(struct hci_dev *hdev, void *data,
1300 struct sk_buff *skb)
1302 struct hci_rp_user_confirm_reply *rp = data;
1304 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1308 if (hci_dev_test_flag(hdev, HCI_MGMT))
1309 mgmt_user_confirm_neg_reply_complete(hdev, &rp->bdaddr,
1310 ACL_LINK, 0, rp->status);
1312 hci_dev_unlock(hdev);
1317 static u8 hci_cc_user_passkey_reply(struct hci_dev *hdev, void *data,
1318 struct sk_buff *skb)
1320 struct hci_rp_user_confirm_reply *rp = data;
1322 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1326 if (hci_dev_test_flag(hdev, HCI_MGMT))
1327 mgmt_user_passkey_reply_complete(hdev, &rp->bdaddr, ACL_LINK,
1330 hci_dev_unlock(hdev);
1335 static u8 hci_cc_user_passkey_neg_reply(struct hci_dev *hdev, void *data,
1336 struct sk_buff *skb)
1338 struct hci_rp_user_confirm_reply *rp = data;
1340 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1344 if (hci_dev_test_flag(hdev, HCI_MGMT))
1345 mgmt_user_passkey_neg_reply_complete(hdev, &rp->bdaddr,
1346 ACL_LINK, 0, rp->status);
1348 hci_dev_unlock(hdev);
1353 static u8 hci_cc_read_local_oob_data(struct hci_dev *hdev, void *data,
1354 struct sk_buff *skb)
1356 struct hci_rp_read_local_oob_data *rp = data;
1358 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1363 static u8 hci_cc_read_local_oob_ext_data(struct hci_dev *hdev, void *data,
1364 struct sk_buff *skb)
1366 struct hci_rp_read_local_oob_ext_data *rp = data;
1368 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1373 static u8 hci_cc_le_set_random_addr(struct hci_dev *hdev, void *data,
1374 struct sk_buff *skb)
1376 struct hci_ev_status *rp = data;
1379 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1384 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_RANDOM_ADDR);
1390 bacpy(&hdev->random_addr, sent);
1392 if (!bacmp(&hdev->rpa, sent)) {
1393 hci_dev_clear_flag(hdev, HCI_RPA_EXPIRED);
1394 queue_delayed_work(hdev->workqueue, &hdev->rpa_expired,
1395 secs_to_jiffies(hdev->rpa_timeout));
1398 hci_dev_unlock(hdev);
1403 static u8 hci_cc_le_set_default_phy(struct hci_dev *hdev, void *data,
1404 struct sk_buff *skb)
1406 struct hci_ev_status *rp = data;
1407 struct hci_cp_le_set_default_phy *cp;
1409 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1414 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_DEFAULT_PHY);
1420 hdev->le_tx_def_phys = cp->tx_phys;
1421 hdev->le_rx_def_phys = cp->rx_phys;
1423 hci_dev_unlock(hdev);
1428 static u8 hci_cc_le_set_adv_set_random_addr(struct hci_dev *hdev, void *data,
1429 struct sk_buff *skb)
1431 struct hci_ev_status *rp = data;
1432 struct hci_cp_le_set_adv_set_rand_addr *cp;
1433 struct adv_info *adv;
1435 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1440 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADV_SET_RAND_ADDR);
1441 /* Update only in case the adv instance since handle 0x00 shall be using
1442 * HCI_OP_LE_SET_RANDOM_ADDR since that allows both extended and
1443 * non-extended adverting.
1445 if (!cp || !cp->handle)
1450 adv = hci_find_adv_instance(hdev, cp->handle);
1452 bacpy(&adv->random_addr, &cp->bdaddr);
1453 if (!bacmp(&hdev->rpa, &cp->bdaddr)) {
1454 adv->rpa_expired = false;
1455 queue_delayed_work(hdev->workqueue,
1456 &adv->rpa_expired_cb,
1457 secs_to_jiffies(hdev->rpa_timeout));
1461 hci_dev_unlock(hdev);
1466 static u8 hci_cc_le_remove_adv_set(struct hci_dev *hdev, void *data,
1467 struct sk_buff *skb)
1469 struct hci_ev_status *rp = data;
1473 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1478 instance = hci_sent_cmd_data(hdev, HCI_OP_LE_REMOVE_ADV_SET);
1484 err = hci_remove_adv_instance(hdev, *instance);
1486 mgmt_advertising_removed(hci_skb_sk(hdev->sent_cmd), hdev,
1489 hci_dev_unlock(hdev);
1494 static u8 hci_cc_le_clear_adv_sets(struct hci_dev *hdev, void *data,
1495 struct sk_buff *skb)
1497 struct hci_ev_status *rp = data;
1498 struct adv_info *adv, *n;
1501 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1506 if (!hci_sent_cmd_data(hdev, HCI_OP_LE_CLEAR_ADV_SETS))
1511 list_for_each_entry_safe(adv, n, &hdev->adv_instances, list) {
1512 u8 instance = adv->instance;
1514 err = hci_remove_adv_instance(hdev, instance);
1516 mgmt_advertising_removed(hci_skb_sk(hdev->sent_cmd),
1520 hci_dev_unlock(hdev);
1525 static u8 hci_cc_le_read_transmit_power(struct hci_dev *hdev, void *data,
1526 struct sk_buff *skb)
1528 struct hci_rp_le_read_transmit_power *rp = data;
1530 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1535 hdev->min_le_tx_power = rp->min_le_tx_power;
1536 hdev->max_le_tx_power = rp->max_le_tx_power;
1541 static u8 hci_cc_le_set_privacy_mode(struct hci_dev *hdev, void *data,
1542 struct sk_buff *skb)
1544 struct hci_ev_status *rp = data;
1545 struct hci_cp_le_set_privacy_mode *cp;
1546 struct hci_conn_params *params;
1548 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1553 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_PRIVACY_MODE);
1559 params = hci_conn_params_lookup(hdev, &cp->bdaddr, cp->bdaddr_type);
1561 params->privacy_mode = cp->mode;
1563 hci_dev_unlock(hdev);
1568 static u8 hci_cc_le_set_adv_enable(struct hci_dev *hdev, void *data,
1569 struct sk_buff *skb)
1571 struct hci_ev_status *rp = data;
1574 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1579 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADV_ENABLE);
1585 /* If we're doing connection initiation as peripheral. Set a
1586 * timeout in case something goes wrong.
1589 struct hci_conn *conn;
1591 hci_dev_set_flag(hdev, HCI_LE_ADV);
1593 conn = hci_lookup_le_connect(hdev);
1595 queue_delayed_work(hdev->workqueue,
1596 &conn->le_conn_timeout,
1597 conn->conn_timeout);
1599 hci_dev_clear_flag(hdev, HCI_LE_ADV);
1602 hci_dev_unlock(hdev);
1607 static u8 hci_cc_le_set_ext_adv_enable(struct hci_dev *hdev, void *data,
1608 struct sk_buff *skb)
1610 struct hci_cp_le_set_ext_adv_enable *cp;
1611 struct hci_cp_ext_adv_set *set;
1612 struct adv_info *adv = NULL, *n;
1613 struct hci_ev_status *rp = data;
1615 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1620 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_EXT_ADV_ENABLE);
1624 set = (void *)cp->data;
1628 if (cp->num_of_sets)
1629 adv = hci_find_adv_instance(hdev, set->handle);
1632 struct hci_conn *conn;
1634 hci_dev_set_flag(hdev, HCI_LE_ADV);
1637 adv->enabled = true;
1639 conn = hci_lookup_le_connect(hdev);
1641 queue_delayed_work(hdev->workqueue,
1642 &conn->le_conn_timeout,
1643 conn->conn_timeout);
1645 if (cp->num_of_sets) {
1647 adv->enabled = false;
1649 /* If just one instance was disabled check if there are
1650 * any other instance enabled before clearing HCI_LE_ADV
1652 list_for_each_entry_safe(adv, n, &hdev->adv_instances,
1658 /* All instances shall be considered disabled */
1659 list_for_each_entry_safe(adv, n, &hdev->adv_instances,
1661 adv->enabled = false;
1664 hci_dev_clear_flag(hdev, HCI_LE_ADV);
1668 hci_dev_unlock(hdev);
1672 static u8 hci_cc_le_set_scan_param(struct hci_dev *hdev, void *data,
1673 struct sk_buff *skb)
1675 struct hci_cp_le_set_scan_param *cp;
1676 struct hci_ev_status *rp = data;
1678 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1683 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_SCAN_PARAM);
1689 hdev->le_scan_type = cp->type;
1691 hci_dev_unlock(hdev);
1696 static u8 hci_cc_le_set_ext_scan_param(struct hci_dev *hdev, void *data,
1697 struct sk_buff *skb)
1699 struct hci_cp_le_set_ext_scan_params *cp;
1700 struct hci_ev_status *rp = data;
1701 struct hci_cp_le_scan_phy_params *phy_param;
1703 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1708 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_EXT_SCAN_PARAMS);
1712 phy_param = (void *)cp->data;
1716 hdev->le_scan_type = phy_param->type;
1718 hci_dev_unlock(hdev);
1723 static bool has_pending_adv_report(struct hci_dev *hdev)
1725 struct discovery_state *d = &hdev->discovery;
1727 return bacmp(&d->last_adv_addr, BDADDR_ANY);
1730 static void clear_pending_adv_report(struct hci_dev *hdev)
1732 struct discovery_state *d = &hdev->discovery;
1734 bacpy(&d->last_adv_addr, BDADDR_ANY);
1735 d->last_adv_data_len = 0;
1738 static void store_pending_adv_report(struct hci_dev *hdev, bdaddr_t *bdaddr,
1739 u8 bdaddr_type, s8 rssi, u32 flags,
1742 struct discovery_state *d = &hdev->discovery;
1744 if (len > HCI_MAX_AD_LENGTH)
1747 bacpy(&d->last_adv_addr, bdaddr);
1748 d->last_adv_addr_type = bdaddr_type;
1749 d->last_adv_rssi = rssi;
1750 d->last_adv_flags = flags;
1751 memcpy(d->last_adv_data, data, len);
1752 d->last_adv_data_len = len;
1755 static void le_set_scan_enable_complete(struct hci_dev *hdev, u8 enable)
1760 case LE_SCAN_ENABLE:
1761 hci_dev_set_flag(hdev, HCI_LE_SCAN);
1762 if (hdev->le_scan_type == LE_SCAN_ACTIVE)
1763 clear_pending_adv_report(hdev);
1764 if (hci_dev_test_flag(hdev, HCI_MESH))
1765 hci_discovery_set_state(hdev, DISCOVERY_FINDING);
1768 case LE_SCAN_DISABLE:
1769 /* We do this here instead of when setting DISCOVERY_STOPPED
1770 * since the latter would potentially require waiting for
1771 * inquiry to stop too.
1773 if (has_pending_adv_report(hdev)) {
1774 struct discovery_state *d = &hdev->discovery;
1776 mgmt_device_found(hdev, &d->last_adv_addr, LE_LINK,
1777 d->last_adv_addr_type, NULL,
1778 d->last_adv_rssi, d->last_adv_flags,
1780 d->last_adv_data_len, NULL, 0, 0);
1783 /* Cancel this timer so that we don't try to disable scanning
1784 * when it's already disabled.
1786 cancel_delayed_work(&hdev->le_scan_disable);
1788 hci_dev_clear_flag(hdev, HCI_LE_SCAN);
1790 /* The HCI_LE_SCAN_INTERRUPTED flag indicates that we
1791 * interrupted scanning due to a connect request. Mark
1792 * therefore discovery as stopped.
1794 if (hci_dev_test_and_clear_flag(hdev, HCI_LE_SCAN_INTERRUPTED))
1795 #ifndef TIZEN_BT /* The below line is kernel bug. */
1796 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
1798 hci_le_discovery_set_state(hdev, DISCOVERY_STOPPED);
1800 else if (!hci_dev_test_flag(hdev, HCI_LE_ADV) &&
1801 hdev->discovery.state == DISCOVERY_FINDING)
1802 queue_work(hdev->workqueue, &hdev->reenable_adv_work);
1807 bt_dev_err(hdev, "use of reserved LE_Scan_Enable param %d",
1812 hci_dev_unlock(hdev);
1815 static u8 hci_cc_le_set_scan_enable(struct hci_dev *hdev, void *data,
1816 struct sk_buff *skb)
1818 struct hci_cp_le_set_scan_enable *cp;
1819 struct hci_ev_status *rp = data;
1821 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1826 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_SCAN_ENABLE);
1830 le_set_scan_enable_complete(hdev, cp->enable);
1835 static u8 hci_cc_le_set_ext_scan_enable(struct hci_dev *hdev, void *data,
1836 struct sk_buff *skb)
1838 struct hci_cp_le_set_ext_scan_enable *cp;
1839 struct hci_ev_status *rp = data;
1841 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1846 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_EXT_SCAN_ENABLE);
1850 le_set_scan_enable_complete(hdev, cp->enable);
1855 static u8 hci_cc_le_read_num_adv_sets(struct hci_dev *hdev, void *data,
1856 struct sk_buff *skb)
1858 struct hci_rp_le_read_num_supported_adv_sets *rp = data;
1860 bt_dev_dbg(hdev, "status 0x%2.2x No of Adv sets %u", rp->status,
1866 hdev->le_num_of_adv_sets = rp->num_of_sets;
1871 static u8 hci_cc_le_read_accept_list_size(struct hci_dev *hdev, void *data,
1872 struct sk_buff *skb)
1874 struct hci_rp_le_read_accept_list_size *rp = data;
1876 bt_dev_dbg(hdev, "status 0x%2.2x size %u", rp->status, rp->size);
1881 hdev->le_accept_list_size = rp->size;
1886 static u8 hci_cc_le_clear_accept_list(struct hci_dev *hdev, void *data,
1887 struct sk_buff *skb)
1889 struct hci_ev_status *rp = data;
1891 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1897 hci_bdaddr_list_clear(&hdev->le_accept_list);
1898 hci_dev_unlock(hdev);
1903 static u8 hci_cc_le_add_to_accept_list(struct hci_dev *hdev, void *data,
1904 struct sk_buff *skb)
1906 struct hci_cp_le_add_to_accept_list *sent;
1907 struct hci_ev_status *rp = data;
1909 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1914 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_ADD_TO_ACCEPT_LIST);
1919 hci_bdaddr_list_add(&hdev->le_accept_list, &sent->bdaddr,
1921 hci_dev_unlock(hdev);
1926 static u8 hci_cc_le_del_from_accept_list(struct hci_dev *hdev, void *data,
1927 struct sk_buff *skb)
1929 struct hci_cp_le_del_from_accept_list *sent;
1930 struct hci_ev_status *rp = data;
1932 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1937 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_DEL_FROM_ACCEPT_LIST);
1942 hci_bdaddr_list_del(&hdev->le_accept_list, &sent->bdaddr,
1944 hci_dev_unlock(hdev);
1949 static u8 hci_cc_le_read_supported_states(struct hci_dev *hdev, void *data,
1950 struct sk_buff *skb)
1952 struct hci_rp_le_read_supported_states *rp = data;
1954 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1959 memcpy(hdev->le_states, rp->le_states, 8);
1964 static u8 hci_cc_le_read_def_data_len(struct hci_dev *hdev, void *data,
1965 struct sk_buff *skb)
1967 struct hci_rp_le_read_def_data_len *rp = data;
1969 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1974 hdev->le_def_tx_len = le16_to_cpu(rp->tx_len);
1975 hdev->le_def_tx_time = le16_to_cpu(rp->tx_time);
1980 static u8 hci_cc_le_write_def_data_len(struct hci_dev *hdev, void *data,
1981 struct sk_buff *skb)
1983 struct hci_cp_le_write_def_data_len *sent;
1984 struct hci_ev_status *rp = data;
1986 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1991 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_WRITE_DEF_DATA_LEN);
1995 hdev->le_def_tx_len = le16_to_cpu(sent->tx_len);
1996 hdev->le_def_tx_time = le16_to_cpu(sent->tx_time);
2001 static u8 hci_cc_le_add_to_resolv_list(struct hci_dev *hdev, void *data,
2002 struct sk_buff *skb)
2004 struct hci_cp_le_add_to_resolv_list *sent;
2005 struct hci_ev_status *rp = data;
2007 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2012 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_ADD_TO_RESOLV_LIST);
2017 hci_bdaddr_list_add_with_irk(&hdev->le_resolv_list, &sent->bdaddr,
2018 sent->bdaddr_type, sent->peer_irk,
2020 hci_dev_unlock(hdev);
2025 static u8 hci_cc_le_del_from_resolv_list(struct hci_dev *hdev, void *data,
2026 struct sk_buff *skb)
2028 struct hci_cp_le_del_from_resolv_list *sent;
2029 struct hci_ev_status *rp = data;
2031 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2036 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_DEL_FROM_RESOLV_LIST);
2041 hci_bdaddr_list_del_with_irk(&hdev->le_resolv_list, &sent->bdaddr,
2043 hci_dev_unlock(hdev);
2048 static u8 hci_cc_le_clear_resolv_list(struct hci_dev *hdev, void *data,
2049 struct sk_buff *skb)
2051 struct hci_ev_status *rp = data;
2053 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2059 hci_bdaddr_list_clear(&hdev->le_resolv_list);
2060 hci_dev_unlock(hdev);
2065 static u8 hci_cc_le_read_resolv_list_size(struct hci_dev *hdev, void *data,
2066 struct sk_buff *skb)
2068 struct hci_rp_le_read_resolv_list_size *rp = data;
2070 bt_dev_dbg(hdev, "status 0x%2.2x size %u", rp->status, rp->size);
2075 hdev->le_resolv_list_size = rp->size;
2080 static u8 hci_cc_le_set_addr_resolution_enable(struct hci_dev *hdev, void *data,
2081 struct sk_buff *skb)
2083 struct hci_ev_status *rp = data;
2086 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2091 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADDR_RESOLV_ENABLE);
2098 hci_dev_set_flag(hdev, HCI_LL_RPA_RESOLUTION);
2100 hci_dev_clear_flag(hdev, HCI_LL_RPA_RESOLUTION);
2102 hci_dev_unlock(hdev);
2107 static u8 hci_cc_le_read_max_data_len(struct hci_dev *hdev, void *data,
2108 struct sk_buff *skb)
2110 struct hci_rp_le_read_max_data_len *rp = data;
2112 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2117 hdev->le_max_tx_len = le16_to_cpu(rp->tx_len);
2118 hdev->le_max_tx_time = le16_to_cpu(rp->tx_time);
2119 hdev->le_max_rx_len = le16_to_cpu(rp->rx_len);
2120 hdev->le_max_rx_time = le16_to_cpu(rp->rx_time);
2125 static u8 hci_cc_write_le_host_supported(struct hci_dev *hdev, void *data,
2126 struct sk_buff *skb)
2128 struct hci_cp_write_le_host_supported *sent;
2129 struct hci_ev_status *rp = data;
2131 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2136 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LE_HOST_SUPPORTED);
2143 hdev->features[1][0] |= LMP_HOST_LE;
2144 hci_dev_set_flag(hdev, HCI_LE_ENABLED);
2146 hdev->features[1][0] &= ~LMP_HOST_LE;
2147 hci_dev_clear_flag(hdev, HCI_LE_ENABLED);
2148 hci_dev_clear_flag(hdev, HCI_ADVERTISING);
2152 hdev->features[1][0] |= LMP_HOST_LE_BREDR;
2154 hdev->features[1][0] &= ~LMP_HOST_LE_BREDR;
2156 hci_dev_unlock(hdev);
2161 static u8 hci_cc_set_adv_param(struct hci_dev *hdev, void *data,
2162 struct sk_buff *skb)
2164 struct hci_cp_le_set_adv_param *cp;
2165 struct hci_ev_status *rp = data;
2167 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2172 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADV_PARAM);
2177 hdev->adv_addr_type = cp->own_address_type;
2178 hci_dev_unlock(hdev);
2183 static u8 hci_cc_set_ext_adv_param(struct hci_dev *hdev, void *data,
2184 struct sk_buff *skb)
2186 struct hci_rp_le_set_ext_adv_params *rp = data;
2187 struct hci_cp_le_set_ext_adv_params *cp;
2188 struct adv_info *adv_instance;
2190 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2195 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_EXT_ADV_PARAMS);
2200 hdev->adv_addr_type = cp->own_addr_type;
2202 /* Store in hdev for instance 0 */
2203 hdev->adv_tx_power = rp->tx_power;
2205 adv_instance = hci_find_adv_instance(hdev, cp->handle);
2207 adv_instance->tx_power = rp->tx_power;
2209 /* Update adv data as tx power is known now */
2210 hci_update_adv_data(hdev, cp->handle);
2212 hci_dev_unlock(hdev);
2218 static u8 hci_cc_enable_rssi(struct hci_dev *hdev, void *data,
2219 struct sk_buff *skb)
2221 struct hci_cc_rsp_enable_rssi *rp = data;
2223 BT_DBG("hci_cc_enable_rssi - %s status 0x%2.2x Event_LE_ext_Opcode 0x%2.2x",
2224 hdev->name, rp->status, rp->le_ext_opcode);
2226 mgmt_enable_rssi_cc(hdev, rp, rp->status);
2231 static u8 hci_cc_get_raw_rssi(struct hci_dev *hdev, void *data,
2232 struct sk_buff *skb)
2234 struct hci_cc_rp_get_raw_rssi *rp = data;
2236 BT_DBG("hci_cc_get_raw_rssi- %s Get Raw Rssi Response[%2.2x %4.4x %2.2X]",
2237 hdev->name, rp->status, rp->conn_handle, rp->rssi_dbm);
2239 mgmt_raw_rssi_response(hdev, rp, rp->status);
2245 static u8 hci_cc_read_rssi(struct hci_dev *hdev, void *data,
2246 struct sk_buff *skb)
2248 struct hci_rp_read_rssi *rp = data;
2249 struct hci_conn *conn;
2251 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2258 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
2260 conn->rssi = rp->rssi;
2262 hci_dev_unlock(hdev);
2267 static u8 hci_cc_read_tx_power(struct hci_dev *hdev, void *data,
2268 struct sk_buff *skb)
2270 struct hci_cp_read_tx_power *sent;
2271 struct hci_rp_read_tx_power *rp = data;
2272 struct hci_conn *conn;
2274 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2279 sent = hci_sent_cmd_data(hdev, HCI_OP_READ_TX_POWER);
2285 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
2289 switch (sent->type) {
2291 conn->tx_power = rp->tx_power;
2294 conn->max_tx_power = rp->tx_power;
2299 hci_dev_unlock(hdev);
2303 static u8 hci_cc_write_ssp_debug_mode(struct hci_dev *hdev, void *data,
2304 struct sk_buff *skb)
2306 struct hci_ev_status *rp = data;
2309 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2314 mode = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SSP_DEBUG_MODE);
2316 hdev->ssp_debug_mode = *mode;
2321 static void hci_cs_inquiry(struct hci_dev *hdev, __u8 status)
2323 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2326 hci_conn_check_pending(hdev);
2330 set_bit(HCI_INQUIRY, &hdev->flags);
2333 static void hci_cs_create_conn(struct hci_dev *hdev, __u8 status)
2335 struct hci_cp_create_conn *cp;
2336 struct hci_conn *conn;
2338 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2340 cp = hci_sent_cmd_data(hdev, HCI_OP_CREATE_CONN);
2346 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
2348 bt_dev_dbg(hdev, "bdaddr %pMR hcon %p", &cp->bdaddr, conn);
2351 if (conn && conn->state == BT_CONNECT) {
2352 if (status != 0x0c || conn->attempt > 2) {
2353 conn->state = BT_CLOSED;
2354 hci_connect_cfm(conn, status);
2357 conn->state = BT_CONNECT2;
2361 conn = hci_conn_add(hdev, ACL_LINK, &cp->bdaddr,
2364 bt_dev_err(hdev, "no memory for new connection");
2368 hci_dev_unlock(hdev);
2371 static void hci_cs_add_sco(struct hci_dev *hdev, __u8 status)
2373 struct hci_cp_add_sco *cp;
2374 struct hci_conn *acl, *sco;
2377 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2382 cp = hci_sent_cmd_data(hdev, HCI_OP_ADD_SCO);
2386 handle = __le16_to_cpu(cp->handle);
2388 bt_dev_dbg(hdev, "handle 0x%4.4x", handle);
2392 acl = hci_conn_hash_lookup_handle(hdev, handle);
2396 sco->state = BT_CLOSED;
2398 hci_connect_cfm(sco, status);
2403 hci_dev_unlock(hdev);
2406 static void hci_cs_auth_requested(struct hci_dev *hdev, __u8 status)
2408 struct hci_cp_auth_requested *cp;
2409 struct hci_conn *conn;
2411 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2416 cp = hci_sent_cmd_data(hdev, HCI_OP_AUTH_REQUESTED);
2422 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2424 if (conn->state == BT_CONFIG) {
2425 hci_connect_cfm(conn, status);
2426 hci_conn_drop(conn);
2430 hci_dev_unlock(hdev);
2433 static void hci_cs_set_conn_encrypt(struct hci_dev *hdev, __u8 status)
2435 struct hci_cp_set_conn_encrypt *cp;
2436 struct hci_conn *conn;
2438 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2443 cp = hci_sent_cmd_data(hdev, HCI_OP_SET_CONN_ENCRYPT);
2449 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2451 if (conn->state == BT_CONFIG) {
2452 hci_connect_cfm(conn, status);
2453 hci_conn_drop(conn);
2457 hci_dev_unlock(hdev);
2460 static int hci_outgoing_auth_needed(struct hci_dev *hdev,
2461 struct hci_conn *conn)
2463 if (conn->state != BT_CONFIG || !conn->out)
2466 if (conn->pending_sec_level == BT_SECURITY_SDP)
2469 /* Only request authentication for SSP connections or non-SSP
2470 * devices with sec_level MEDIUM or HIGH or if MITM protection
2473 if (!hci_conn_ssp_enabled(conn) && !(conn->auth_type & 0x01) &&
2474 conn->pending_sec_level != BT_SECURITY_FIPS &&
2475 conn->pending_sec_level != BT_SECURITY_HIGH &&
2476 conn->pending_sec_level != BT_SECURITY_MEDIUM)
2482 static int hci_resolve_name(struct hci_dev *hdev,
2483 struct inquiry_entry *e)
2485 struct hci_cp_remote_name_req cp;
2487 memset(&cp, 0, sizeof(cp));
2489 bacpy(&cp.bdaddr, &e->data.bdaddr);
2490 cp.pscan_rep_mode = e->data.pscan_rep_mode;
2491 cp.pscan_mode = e->data.pscan_mode;
2492 cp.clock_offset = e->data.clock_offset;
2494 return hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp);
2497 static bool hci_resolve_next_name(struct hci_dev *hdev)
2499 struct discovery_state *discov = &hdev->discovery;
2500 struct inquiry_entry *e;
2502 if (list_empty(&discov->resolve))
2505 /* We should stop if we already spent too much time resolving names. */
2506 if (time_after(jiffies, discov->name_resolve_timeout)) {
2507 bt_dev_warn_ratelimited(hdev, "Name resolve takes too long.");
2511 e = hci_inquiry_cache_lookup_resolve(hdev, BDADDR_ANY, NAME_NEEDED);
2515 if (hci_resolve_name(hdev, e) == 0) {
2516 e->name_state = NAME_PENDING;
2523 static void hci_check_pending_name(struct hci_dev *hdev, struct hci_conn *conn,
2524 bdaddr_t *bdaddr, u8 *name, u8 name_len)
2526 struct discovery_state *discov = &hdev->discovery;
2527 struct inquiry_entry *e;
2530 /* Update the mgmt connected state if necessary. Be careful with
2531 * conn objects that exist but are not (yet) connected however.
2532 * Only those in BT_CONFIG or BT_CONNECTED states can be
2533 * considered connected.
2536 (conn->state == BT_CONFIG || conn->state == BT_CONNECTED)) {
2537 if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
2538 mgmt_device_connected(hdev, conn, 0, name, name_len);
2540 mgmt_device_name_update(hdev, bdaddr, name, name_len);
2544 (conn->state == BT_CONFIG || conn->state == BT_CONNECTED) &&
2545 !test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
2546 mgmt_device_connected(hdev, conn, name, name_len);
2549 if (discov->state == DISCOVERY_STOPPED)
2552 if (discov->state == DISCOVERY_STOPPING)
2553 goto discov_complete;
2555 if (discov->state != DISCOVERY_RESOLVING)
2558 e = hci_inquiry_cache_lookup_resolve(hdev, bdaddr, NAME_PENDING);
2559 /* If the device was not found in a list of found devices names of which
2560 * are pending. there is no need to continue resolving a next name as it
2561 * will be done upon receiving another Remote Name Request Complete
2568 e->name_state = name ? NAME_KNOWN : NAME_NOT_KNOWN;
2569 mgmt_remote_name(hdev, bdaddr, ACL_LINK, 0x00, e->data.rssi,
2572 if (hci_resolve_next_name(hdev))
2576 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
2579 static void hci_cs_remote_name_req(struct hci_dev *hdev, __u8 status)
2581 struct hci_cp_remote_name_req *cp;
2582 struct hci_conn *conn;
2584 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2586 /* If successful wait for the name req complete event before
2587 * checking for the need to do authentication */
2591 cp = hci_sent_cmd_data(hdev, HCI_OP_REMOTE_NAME_REQ);
2597 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
2599 if (hci_dev_test_flag(hdev, HCI_MGMT))
2600 hci_check_pending_name(hdev, conn, &cp->bdaddr, NULL, 0);
2605 if (!hci_outgoing_auth_needed(hdev, conn))
2608 if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->flags)) {
2609 struct hci_cp_auth_requested auth_cp;
2611 set_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags);
2613 auth_cp.handle = __cpu_to_le16(conn->handle);
2614 hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED,
2615 sizeof(auth_cp), &auth_cp);
2619 hci_dev_unlock(hdev);
2622 static void hci_cs_read_remote_features(struct hci_dev *hdev, __u8 status)
2624 struct hci_cp_read_remote_features *cp;
2625 struct hci_conn *conn;
2627 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2632 cp = hci_sent_cmd_data(hdev, HCI_OP_READ_REMOTE_FEATURES);
2638 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2640 if (conn->state == BT_CONFIG) {
2641 hci_connect_cfm(conn, status);
2642 hci_conn_drop(conn);
2646 hci_dev_unlock(hdev);
2649 static void hci_cs_read_remote_ext_features(struct hci_dev *hdev, __u8 status)
2651 struct hci_cp_read_remote_ext_features *cp;
2652 struct hci_conn *conn;
2654 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2659 cp = hci_sent_cmd_data(hdev, HCI_OP_READ_REMOTE_EXT_FEATURES);
2665 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2667 if (conn->state == BT_CONFIG) {
2668 hci_connect_cfm(conn, status);
2669 hci_conn_drop(conn);
2673 hci_dev_unlock(hdev);
2676 static void hci_cs_setup_sync_conn(struct hci_dev *hdev, __u8 status)
2678 struct hci_cp_setup_sync_conn *cp;
2679 struct hci_conn *acl, *sco;
2682 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2687 cp = hci_sent_cmd_data(hdev, HCI_OP_SETUP_SYNC_CONN);
2691 handle = __le16_to_cpu(cp->handle);
2693 bt_dev_dbg(hdev, "handle 0x%4.4x", handle);
2697 acl = hci_conn_hash_lookup_handle(hdev, handle);
2701 sco->state = BT_CLOSED;
2703 hci_connect_cfm(sco, status);
2708 hci_dev_unlock(hdev);
2711 static void hci_cs_enhanced_setup_sync_conn(struct hci_dev *hdev, __u8 status)
2713 struct hci_cp_enhanced_setup_sync_conn *cp;
2714 struct hci_conn *acl, *sco;
2717 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2722 cp = hci_sent_cmd_data(hdev, HCI_OP_ENHANCED_SETUP_SYNC_CONN);
2726 handle = __le16_to_cpu(cp->handle);
2728 bt_dev_dbg(hdev, "handle 0x%4.4x", handle);
2732 acl = hci_conn_hash_lookup_handle(hdev, handle);
2736 sco->state = BT_CLOSED;
2738 hci_connect_cfm(sco, status);
2743 hci_dev_unlock(hdev);
2746 static void hci_cs_sniff_mode(struct hci_dev *hdev, __u8 status)
2748 struct hci_cp_sniff_mode *cp;
2749 struct hci_conn *conn;
2751 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2756 cp = hci_sent_cmd_data(hdev, HCI_OP_SNIFF_MODE);
2762 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2764 clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->flags);
2766 if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags))
2767 hci_sco_setup(conn, status);
2770 hci_dev_unlock(hdev);
2773 static void hci_cs_exit_sniff_mode(struct hci_dev *hdev, __u8 status)
2775 struct hci_cp_exit_sniff_mode *cp;
2776 struct hci_conn *conn;
2778 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2783 cp = hci_sent_cmd_data(hdev, HCI_OP_EXIT_SNIFF_MODE);
2789 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2791 clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->flags);
2793 if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags))
2794 hci_sco_setup(conn, status);
2797 hci_dev_unlock(hdev);
2800 static void hci_cs_disconnect(struct hci_dev *hdev, u8 status)
2802 struct hci_cp_disconnect *cp;
2803 struct hci_conn_params *params;
2804 struct hci_conn *conn;
2807 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2809 /* Wait for HCI_EV_DISCONN_COMPLETE if status 0x00 and not suspended
2810 * otherwise cleanup the connection immediately.
2812 if (!status && !hdev->suspended)
2815 cp = hci_sent_cmd_data(hdev, HCI_OP_DISCONNECT);
2821 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2826 mgmt_disconnect_failed(hdev, &conn->dst, conn->type,
2827 conn->dst_type, status);
2829 if (conn->type == LE_LINK && conn->role == HCI_ROLE_SLAVE) {
2830 hdev->cur_adv_instance = conn->adv_instance;
2831 hci_enable_advertising(hdev);
2837 mgmt_conn = test_and_clear_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags);
2839 if (conn->type == ACL_LINK) {
2840 if (test_and_clear_bit(HCI_CONN_FLUSH_KEY, &conn->flags))
2841 hci_remove_link_key(hdev, &conn->dst);
2844 params = hci_conn_params_lookup(hdev, &conn->dst, conn->dst_type);
2846 switch (params->auto_connect) {
2847 case HCI_AUTO_CONN_LINK_LOSS:
2848 if (cp->reason != HCI_ERROR_CONNECTION_TIMEOUT)
2852 case HCI_AUTO_CONN_DIRECT:
2853 case HCI_AUTO_CONN_ALWAYS:
2854 list_del_init(¶ms->action);
2855 list_add(¶ms->action, &hdev->pend_le_conns);
2863 mgmt_device_disconnected(hdev, &conn->dst, conn->type, conn->dst_type,
2864 cp->reason, mgmt_conn);
2866 hci_disconn_cfm(conn, cp->reason);
2869 /* If the disconnection failed for any reason, the upper layer
2870 * does not retry to disconnect in current implementation.
2871 * Hence, we need to do some basic cleanup here and re-enable
2872 * advertising if necessary.
2876 hci_dev_unlock(hdev);
2879 static u8 ev_bdaddr_type(struct hci_dev *hdev, u8 type, bool *resolved)
2881 /* When using controller based address resolution, then the new
2882 * address types 0x02 and 0x03 are used. These types need to be
2883 * converted back into either public address or random address type
2886 case ADDR_LE_DEV_PUBLIC_RESOLVED:
2889 return ADDR_LE_DEV_PUBLIC;
2890 case ADDR_LE_DEV_RANDOM_RESOLVED:
2893 return ADDR_LE_DEV_RANDOM;
2901 static void cs_le_create_conn(struct hci_dev *hdev, bdaddr_t *peer_addr,
2902 u8 peer_addr_type, u8 own_address_type,
2905 struct hci_conn *conn;
2907 conn = hci_conn_hash_lookup_le(hdev, peer_addr,
2912 own_address_type = ev_bdaddr_type(hdev, own_address_type, NULL);
2914 /* Store the initiator and responder address information which
2915 * is needed for SMP. These values will not change during the
2916 * lifetime of the connection.
2918 conn->init_addr_type = own_address_type;
2919 if (own_address_type == ADDR_LE_DEV_RANDOM)
2920 bacpy(&conn->init_addr, &hdev->random_addr);
2922 bacpy(&conn->init_addr, &hdev->bdaddr);
2924 conn->resp_addr_type = peer_addr_type;
2925 bacpy(&conn->resp_addr, peer_addr);
2928 static void hci_cs_le_create_conn(struct hci_dev *hdev, u8 status)
2930 struct hci_cp_le_create_conn *cp;
2932 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2934 /* All connection failure handling is taken care of by the
2935 * hci_conn_failed function which is triggered by the HCI
2936 * request completion callbacks used for connecting.
2941 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_CREATE_CONN);
2947 cs_le_create_conn(hdev, &cp->peer_addr, cp->peer_addr_type,
2948 cp->own_address_type, cp->filter_policy);
2950 hci_dev_unlock(hdev);
2953 static void hci_cs_le_ext_create_conn(struct hci_dev *hdev, u8 status)
2955 struct hci_cp_le_ext_create_conn *cp;
2957 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2959 /* All connection failure handling is taken care of by the
2960 * hci_conn_failed function which is triggered by the HCI
2961 * request completion callbacks used for connecting.
2966 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_EXT_CREATE_CONN);
2972 cs_le_create_conn(hdev, &cp->peer_addr, cp->peer_addr_type,
2973 cp->own_addr_type, cp->filter_policy);
2975 hci_dev_unlock(hdev);
2978 static void hci_cs_le_read_remote_features(struct hci_dev *hdev, u8 status)
2980 struct hci_cp_le_read_remote_features *cp;
2981 struct hci_conn *conn;
2983 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2988 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_READ_REMOTE_FEATURES);
2994 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2996 if (conn->state == BT_CONFIG) {
2997 hci_connect_cfm(conn, status);
2998 hci_conn_drop(conn);
3002 hci_dev_unlock(hdev);
3005 static void hci_cs_le_start_enc(struct hci_dev *hdev, u8 status)
3007 struct hci_cp_le_start_enc *cp;
3008 struct hci_conn *conn;
3010 bt_dev_dbg(hdev, "status 0x%2.2x", status);
3017 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_START_ENC);
3021 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
3025 if (conn->state != BT_CONNECTED)
3028 hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE);
3029 hci_conn_drop(conn);
3032 hci_dev_unlock(hdev);
3035 static void hci_cs_switch_role(struct hci_dev *hdev, u8 status)
3037 struct hci_cp_switch_role *cp;
3038 struct hci_conn *conn;
3040 BT_DBG("%s status 0x%2.2x", hdev->name, status);
3045 cp = hci_sent_cmd_data(hdev, HCI_OP_SWITCH_ROLE);
3051 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
3053 clear_bit(HCI_CONN_RSWITCH_PEND, &conn->flags);
3055 hci_dev_unlock(hdev);
3058 static void hci_inquiry_complete_evt(struct hci_dev *hdev, void *data,
3059 struct sk_buff *skb)
3061 struct hci_ev_status *ev = data;
3062 struct discovery_state *discov = &hdev->discovery;
3063 struct inquiry_entry *e;
3065 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
3067 hci_conn_check_pending(hdev);
3069 if (!test_and_clear_bit(HCI_INQUIRY, &hdev->flags))
3072 smp_mb__after_atomic(); /* wake_up_bit advises about this barrier */
3073 wake_up_bit(&hdev->flags, HCI_INQUIRY);
3075 if (!hci_dev_test_flag(hdev, HCI_MGMT))
3080 if (discov->state != DISCOVERY_FINDING)
3083 if (list_empty(&discov->resolve)) {
3084 /* When BR/EDR inquiry is active and no LE scanning is in
3085 * progress, then change discovery state to indicate completion.
3087 * When running LE scanning and BR/EDR inquiry simultaneously
3088 * and the LE scan already finished, then change the discovery
3089 * state to indicate completion.
3091 if (!hci_dev_test_flag(hdev, HCI_LE_SCAN) ||
3092 !test_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks))
3093 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
3097 e = hci_inquiry_cache_lookup_resolve(hdev, BDADDR_ANY, NAME_NEEDED);
3098 if (e && hci_resolve_name(hdev, e) == 0) {
3099 e->name_state = NAME_PENDING;
3100 hci_discovery_set_state(hdev, DISCOVERY_RESOLVING);
3101 discov->name_resolve_timeout = jiffies + NAME_RESOLVE_DURATION;
3103 /* When BR/EDR inquiry is active and no LE scanning is in
3104 * progress, then change discovery state to indicate completion.
3106 * When running LE scanning and BR/EDR inquiry simultaneously
3107 * and the LE scan already finished, then change the discovery
3108 * state to indicate completion.
3110 if (!hci_dev_test_flag(hdev, HCI_LE_SCAN) ||
3111 !test_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks))
3112 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
3116 hci_dev_unlock(hdev);
3119 static void hci_inquiry_result_evt(struct hci_dev *hdev, void *edata,
3120 struct sk_buff *skb)
3122 struct hci_ev_inquiry_result *ev = edata;
3123 struct inquiry_data data;
3126 if (!hci_ev_skb_pull(hdev, skb, HCI_EV_INQUIRY_RESULT,
3127 flex_array_size(ev, info, ev->num)))
3130 bt_dev_dbg(hdev, "num %d", ev->num);
3135 if (hci_dev_test_flag(hdev, HCI_PERIODIC_INQ))
3140 for (i = 0; i < ev->num; i++) {
3141 struct inquiry_info *info = &ev->info[i];
3144 bacpy(&data.bdaddr, &info->bdaddr);
3145 data.pscan_rep_mode = info->pscan_rep_mode;
3146 data.pscan_period_mode = info->pscan_period_mode;
3147 data.pscan_mode = info->pscan_mode;
3148 memcpy(data.dev_class, info->dev_class, 3);
3149 data.clock_offset = info->clock_offset;
3150 data.rssi = HCI_RSSI_INVALID;
3151 data.ssp_mode = 0x00;
3153 flags = hci_inquiry_cache_update(hdev, &data, false);
3155 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
3156 info->dev_class, HCI_RSSI_INVALID,
3157 flags, NULL, 0, NULL, 0, 0);
3160 hci_dev_unlock(hdev);
3163 static void hci_conn_complete_evt(struct hci_dev *hdev, void *data,
3164 struct sk_buff *skb)
3166 struct hci_ev_conn_complete *ev = data;
3167 struct hci_conn *conn;
3168 u8 status = ev->status;
3170 bt_dev_dbg(hdev, "status 0x%2.2x", status);
3174 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr);
3176 /* In case of error status and there is no connection pending
3177 * just unlock as there is nothing to cleanup.
3182 /* Connection may not exist if auto-connected. Check the bredr
3183 * allowlist to see if this device is allowed to auto connect.
3184 * If link is an ACL type, create a connection class
3187 * Auto-connect will only occur if the event filter is
3188 * programmed with a given address. Right now, event filter is
3189 * only used during suspend.
3191 if (ev->link_type == ACL_LINK &&
3192 hci_bdaddr_list_lookup_with_flags(&hdev->accept_list,
3195 conn = hci_conn_add(hdev, ev->link_type, &ev->bdaddr,
3198 bt_dev_err(hdev, "no memory for new conn");
3202 if (ev->link_type != SCO_LINK)
3205 conn = hci_conn_hash_lookup_ba(hdev, ESCO_LINK,
3210 conn->type = SCO_LINK;
3214 /* The HCI_Connection_Complete event is only sent once per connection.
3215 * Processing it more than once per connection can corrupt kernel memory.
3217 * As the connection handle is set here for the first time, it indicates
3218 * whether the connection is already set up.
3220 if (conn->handle != HCI_CONN_HANDLE_UNSET) {
3221 bt_dev_err(hdev, "Ignoring HCI_Connection_Complete for existing connection");
3226 conn->handle = __le16_to_cpu(ev->handle);
3227 if (conn->handle > HCI_CONN_HANDLE_MAX) {
3228 bt_dev_err(hdev, "Invalid handle: 0x%4.4x > 0x%4.4x",
3229 conn->handle, HCI_CONN_HANDLE_MAX);
3230 status = HCI_ERROR_INVALID_PARAMETERS;
3234 if (conn->type == ACL_LINK) {
3235 conn->state = BT_CONFIG;
3236 hci_conn_hold(conn);
3238 if (!conn->out && !hci_conn_ssp_enabled(conn) &&
3239 !hci_find_link_key(hdev, &ev->bdaddr))
3240 conn->disc_timeout = HCI_PAIRING_TIMEOUT;
3242 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
3244 conn->state = BT_CONNECTED;
3246 hci_debugfs_create_conn(conn);
3247 hci_conn_add_sysfs(conn);
3249 if (test_bit(HCI_AUTH, &hdev->flags))
3250 set_bit(HCI_CONN_AUTH, &conn->flags);
3252 if (test_bit(HCI_ENCRYPT, &hdev->flags))
3253 set_bit(HCI_CONN_ENCRYPT, &conn->flags);
3255 /* Get remote features */
3256 if (conn->type == ACL_LINK) {
3257 struct hci_cp_read_remote_features cp;
3258 cp.handle = ev->handle;
3259 hci_send_cmd(hdev, HCI_OP_READ_REMOTE_FEATURES,
3262 hci_update_scan(hdev);
3265 /* Set packet type for incoming connection */
3266 if (!conn->out && hdev->hci_ver < BLUETOOTH_VER_2_0) {
3267 struct hci_cp_change_conn_ptype cp;
3268 cp.handle = ev->handle;
3269 cp.pkt_type = cpu_to_le16(conn->pkt_type);
3270 hci_send_cmd(hdev, HCI_OP_CHANGE_CONN_PTYPE, sizeof(cp),
3275 if (conn->type == ACL_LINK)
3276 hci_sco_setup(conn, ev->status);
3280 hci_conn_failed(conn, status);
3281 } else if (ev->link_type == SCO_LINK) {
3282 switch (conn->setting & SCO_AIRMODE_MASK) {
3283 case SCO_AIRMODE_CVSD:
3285 hdev->notify(hdev, HCI_NOTIFY_ENABLE_SCO_CVSD);
3289 hci_connect_cfm(conn, status);
3293 hci_dev_unlock(hdev);
3295 hci_conn_check_pending(hdev);
3298 static void hci_reject_conn(struct hci_dev *hdev, bdaddr_t *bdaddr)
3300 struct hci_cp_reject_conn_req cp;
3302 bacpy(&cp.bdaddr, bdaddr);
3303 cp.reason = HCI_ERROR_REJ_BAD_ADDR;
3304 hci_send_cmd(hdev, HCI_OP_REJECT_CONN_REQ, sizeof(cp), &cp);
3307 static void hci_conn_request_evt(struct hci_dev *hdev, void *data,
3308 struct sk_buff *skb)
3310 struct hci_ev_conn_request *ev = data;
3311 int mask = hdev->link_mode;
3312 struct inquiry_entry *ie;
3313 struct hci_conn *conn;
3316 bt_dev_dbg(hdev, "bdaddr %pMR type 0x%x", &ev->bdaddr, ev->link_type);
3318 mask |= hci_proto_connect_ind(hdev, &ev->bdaddr, ev->link_type,
3321 if (!(mask & HCI_LM_ACCEPT)) {
3322 hci_reject_conn(hdev, &ev->bdaddr);
3328 if (hci_bdaddr_list_lookup(&hdev->reject_list, &ev->bdaddr,
3330 hci_reject_conn(hdev, &ev->bdaddr);
3334 /* Require HCI_CONNECTABLE or an accept list entry to accept the
3335 * connection. These features are only touched through mgmt so
3336 * only do the checks if HCI_MGMT is set.
3338 if (hci_dev_test_flag(hdev, HCI_MGMT) &&
3339 !hci_dev_test_flag(hdev, HCI_CONNECTABLE) &&
3340 !hci_bdaddr_list_lookup_with_flags(&hdev->accept_list, &ev->bdaddr,
3342 hci_reject_conn(hdev, &ev->bdaddr);
3346 /* Connection accepted */
3348 ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
3350 memcpy(ie->data.dev_class, ev->dev_class, 3);
3352 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type,
3355 conn = hci_conn_add(hdev, ev->link_type, &ev->bdaddr,
3358 bt_dev_err(hdev, "no memory for new connection");
3363 memcpy(conn->dev_class, ev->dev_class, 3);
3365 hci_dev_unlock(hdev);
3367 if (ev->link_type == ACL_LINK ||
3368 (!(flags & HCI_PROTO_DEFER) && !lmp_esco_capable(hdev))) {
3369 struct hci_cp_accept_conn_req cp;
3370 conn->state = BT_CONNECT;
3372 bacpy(&cp.bdaddr, &ev->bdaddr);
3374 if (lmp_rswitch_capable(hdev) && (mask & HCI_LM_MASTER))
3375 cp.role = 0x00; /* Become central */
3377 cp.role = 0x01; /* Remain peripheral */
3379 hci_send_cmd(hdev, HCI_OP_ACCEPT_CONN_REQ, sizeof(cp), &cp);
3380 } else if (!(flags & HCI_PROTO_DEFER)) {
3381 struct hci_cp_accept_sync_conn_req cp;
3382 conn->state = BT_CONNECT;
3384 bacpy(&cp.bdaddr, &ev->bdaddr);
3385 cp.pkt_type = cpu_to_le16(conn->pkt_type);
3387 cp.tx_bandwidth = cpu_to_le32(0x00001f40);
3388 cp.rx_bandwidth = cpu_to_le32(0x00001f40);
3389 cp.max_latency = cpu_to_le16(0xffff);
3390 cp.content_format = cpu_to_le16(hdev->voice_setting);
3391 cp.retrans_effort = 0xff;
3393 hci_send_cmd(hdev, HCI_OP_ACCEPT_SYNC_CONN_REQ, sizeof(cp),
3396 conn->state = BT_CONNECT2;
3397 hci_connect_cfm(conn, 0);
3402 hci_dev_unlock(hdev);
3405 static u8 hci_to_mgmt_reason(u8 err)
3408 case HCI_ERROR_CONNECTION_TIMEOUT:
3409 return MGMT_DEV_DISCONN_TIMEOUT;
3410 case HCI_ERROR_REMOTE_USER_TERM:
3411 case HCI_ERROR_REMOTE_LOW_RESOURCES:
3412 case HCI_ERROR_REMOTE_POWER_OFF:
3413 return MGMT_DEV_DISCONN_REMOTE;
3414 case HCI_ERROR_LOCAL_HOST_TERM:
3415 return MGMT_DEV_DISCONN_LOCAL_HOST;
3417 return MGMT_DEV_DISCONN_UNKNOWN;
3421 static void hci_disconn_complete_evt(struct hci_dev *hdev, void *data,
3422 struct sk_buff *skb)
3424 struct hci_ev_disconn_complete *ev = data;
3426 struct hci_conn_params *params;
3427 struct hci_conn *conn;
3428 bool mgmt_connected;
3430 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
3434 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3439 mgmt_disconnect_failed(hdev, &conn->dst, conn->type,
3440 conn->dst_type, ev->status);
3444 conn->state = BT_CLOSED;
3446 mgmt_connected = test_and_clear_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags);
3448 if (test_bit(HCI_CONN_AUTH_FAILURE, &conn->flags))
3449 reason = MGMT_DEV_DISCONN_AUTH_FAILURE;
3451 reason = hci_to_mgmt_reason(ev->reason);
3453 mgmt_device_disconnected(hdev, &conn->dst, conn->type, conn->dst_type,
3454 reason, mgmt_connected);
3456 if (conn->type == ACL_LINK) {
3457 if (test_and_clear_bit(HCI_CONN_FLUSH_KEY, &conn->flags))
3458 hci_remove_link_key(hdev, &conn->dst);
3460 hci_update_scan(hdev);
3463 params = hci_conn_params_lookup(hdev, &conn->dst, conn->dst_type);
3465 switch (params->auto_connect) {
3466 case HCI_AUTO_CONN_LINK_LOSS:
3467 if (ev->reason != HCI_ERROR_CONNECTION_TIMEOUT)
3471 case HCI_AUTO_CONN_DIRECT:
3472 case HCI_AUTO_CONN_ALWAYS:
3473 list_del_init(¶ms->action);
3474 list_add(¶ms->action, &hdev->pend_le_conns);
3475 hci_update_passive_scan(hdev);
3483 hci_disconn_cfm(conn, ev->reason);
3485 /* Re-enable advertising if necessary, since it might
3486 * have been disabled by the connection. From the
3487 * HCI_LE_Set_Advertise_Enable command description in
3488 * the core specification (v4.0):
3489 * "The Controller shall continue advertising until the Host
3490 * issues an LE_Set_Advertise_Enable command with
3491 * Advertising_Enable set to 0x00 (Advertising is disabled)
3492 * or until a connection is created or until the Advertising
3493 * is timed out due to Directed Advertising."
3495 if (conn->type == LE_LINK && conn->role == HCI_ROLE_SLAVE) {
3496 hdev->cur_adv_instance = conn->adv_instance;
3497 hci_enable_advertising(hdev);
3503 hci_dev_unlock(hdev);
3506 static void hci_auth_complete_evt(struct hci_dev *hdev, void *data,
3507 struct sk_buff *skb)
3509 struct hci_ev_auth_complete *ev = data;
3510 struct hci_conn *conn;
3512 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
3516 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3521 clear_bit(HCI_CONN_AUTH_FAILURE, &conn->flags);
3523 if (!hci_conn_ssp_enabled(conn) &&
3524 test_bit(HCI_CONN_REAUTH_PEND, &conn->flags)) {
3525 bt_dev_info(hdev, "re-auth of legacy device is not possible.");
3527 set_bit(HCI_CONN_AUTH, &conn->flags);
3528 conn->sec_level = conn->pending_sec_level;
3531 if (ev->status == HCI_ERROR_PIN_OR_KEY_MISSING)
3532 set_bit(HCI_CONN_AUTH_FAILURE, &conn->flags);
3534 mgmt_auth_failed(conn, ev->status);
3537 clear_bit(HCI_CONN_AUTH_PEND, &conn->flags);
3538 clear_bit(HCI_CONN_REAUTH_PEND, &conn->flags);
3540 if (conn->state == BT_CONFIG) {
3541 if (!ev->status && hci_conn_ssp_enabled(conn)) {
3542 struct hci_cp_set_conn_encrypt cp;
3543 cp.handle = ev->handle;
3545 hci_send_cmd(hdev, HCI_OP_SET_CONN_ENCRYPT, sizeof(cp),
3548 conn->state = BT_CONNECTED;
3549 hci_connect_cfm(conn, ev->status);
3550 hci_conn_drop(conn);
3553 hci_auth_cfm(conn, ev->status);
3555 hci_conn_hold(conn);
3556 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
3557 hci_conn_drop(conn);
3560 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) {
3562 struct hci_cp_set_conn_encrypt cp;
3563 cp.handle = ev->handle;
3565 hci_send_cmd(hdev, HCI_OP_SET_CONN_ENCRYPT, sizeof(cp),
3568 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
3569 hci_encrypt_cfm(conn, ev->status);
3574 hci_dev_unlock(hdev);
3577 static void hci_remote_name_evt(struct hci_dev *hdev, void *data,
3578 struct sk_buff *skb)
3580 struct hci_ev_remote_name *ev = data;
3581 struct hci_conn *conn;
3583 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
3585 hci_conn_check_pending(hdev);
3589 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
3591 if (!hci_dev_test_flag(hdev, HCI_MGMT))
3594 if (ev->status == 0)
3595 hci_check_pending_name(hdev, conn, &ev->bdaddr, ev->name,
3596 strnlen(ev->name, HCI_MAX_NAME_LENGTH));
3598 hci_check_pending_name(hdev, conn, &ev->bdaddr, NULL, 0);
3604 if (!hci_outgoing_auth_needed(hdev, conn))
3607 if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->flags)) {
3608 struct hci_cp_auth_requested cp;
3610 set_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags);
3612 cp.handle = __cpu_to_le16(conn->handle);
3613 hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED, sizeof(cp), &cp);
3617 hci_dev_unlock(hdev);
3620 static void hci_encrypt_change_evt(struct hci_dev *hdev, void *data,
3621 struct sk_buff *skb)
3623 struct hci_ev_encrypt_change *ev = data;
3624 struct hci_conn *conn;
3626 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
3630 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3636 /* Encryption implies authentication */
3637 set_bit(HCI_CONN_AUTH, &conn->flags);
3638 set_bit(HCI_CONN_ENCRYPT, &conn->flags);
3639 conn->sec_level = conn->pending_sec_level;
3641 /* P-256 authentication key implies FIPS */
3642 if (conn->key_type == HCI_LK_AUTH_COMBINATION_P256)
3643 set_bit(HCI_CONN_FIPS, &conn->flags);
3645 if ((conn->type == ACL_LINK && ev->encrypt == 0x02) ||
3646 conn->type == LE_LINK)
3647 set_bit(HCI_CONN_AES_CCM, &conn->flags);
3649 clear_bit(HCI_CONN_ENCRYPT, &conn->flags);
3650 clear_bit(HCI_CONN_AES_CCM, &conn->flags);
3654 /* We should disregard the current RPA and generate a new one
3655 * whenever the encryption procedure fails.
3657 if (ev->status && conn->type == LE_LINK) {
3658 hci_dev_set_flag(hdev, HCI_RPA_EXPIRED);
3659 hci_adv_instances_set_rpa_expired(hdev, true);
3662 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
3664 /* Check link security requirements are met */
3665 if (!hci_conn_check_link_mode(conn))
3666 ev->status = HCI_ERROR_AUTH_FAILURE;
3668 if (ev->status && conn->state == BT_CONNECTED) {
3669 if (ev->status == HCI_ERROR_PIN_OR_KEY_MISSING)
3670 set_bit(HCI_CONN_AUTH_FAILURE, &conn->flags);
3672 /* Notify upper layers so they can cleanup before
3675 hci_encrypt_cfm(conn, ev->status);
3676 hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE);
3677 hci_conn_drop(conn);
3681 /* Try reading the encryption key size for encrypted ACL links */
3682 if (!ev->status && ev->encrypt && conn->type == ACL_LINK) {
3683 struct hci_cp_read_enc_key_size cp;
3685 /* Only send HCI_Read_Encryption_Key_Size if the
3686 * controller really supports it. If it doesn't, assume
3687 * the default size (16).
3689 if (!(hdev->commands[20] & 0x10)) {
3690 conn->enc_key_size = HCI_LINK_KEY_SIZE;
3694 cp.handle = cpu_to_le16(conn->handle);
3695 if (hci_send_cmd(hdev, HCI_OP_READ_ENC_KEY_SIZE,
3697 bt_dev_err(hdev, "sending read key size failed");
3698 conn->enc_key_size = HCI_LINK_KEY_SIZE;
3705 /* Set the default Authenticated Payload Timeout after
3706 * an LE Link is established. As per Core Spec v5.0, Vol 2, Part B
3707 * Section 3.3, the HCI command WRITE_AUTH_PAYLOAD_TIMEOUT should be
3708 * sent when the link is active and Encryption is enabled, the conn
3709 * type can be either LE or ACL and controller must support LMP Ping.
3710 * Ensure for AES-CCM encryption as well.
3712 if (test_bit(HCI_CONN_ENCRYPT, &conn->flags) &&
3713 test_bit(HCI_CONN_AES_CCM, &conn->flags) &&
3714 ((conn->type == ACL_LINK && lmp_ping_capable(hdev)) ||
3715 (conn->type == LE_LINK && (hdev->le_features[0] & HCI_LE_PING)))) {
3716 struct hci_cp_write_auth_payload_to cp;
3718 cp.handle = cpu_to_le16(conn->handle);
3719 cp.timeout = cpu_to_le16(hdev->auth_payload_timeout);
3720 hci_send_cmd(conn->hdev, HCI_OP_WRITE_AUTH_PAYLOAD_TO,
3725 hci_encrypt_cfm(conn, ev->status);
3728 hci_dev_unlock(hdev);
3731 static void hci_change_link_key_complete_evt(struct hci_dev *hdev, void *data,
3732 struct sk_buff *skb)
3734 struct hci_ev_change_link_key_complete *ev = data;
3735 struct hci_conn *conn;
3737 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
3741 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3744 set_bit(HCI_CONN_SECURE, &conn->flags);
3746 clear_bit(HCI_CONN_AUTH_PEND, &conn->flags);
3748 hci_key_change_cfm(conn, ev->status);
3751 hci_dev_unlock(hdev);
3754 static void hci_remote_features_evt(struct hci_dev *hdev, void *data,
3755 struct sk_buff *skb)
3757 struct hci_ev_remote_features *ev = data;
3758 struct hci_conn *conn;
3760 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
3764 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3769 memcpy(conn->features[0], ev->features, 8);
3771 if (conn->state != BT_CONFIG)
3774 if (!ev->status && lmp_ext_feat_capable(hdev) &&
3775 lmp_ext_feat_capable(conn)) {
3776 struct hci_cp_read_remote_ext_features cp;
3777 cp.handle = ev->handle;
3779 hci_send_cmd(hdev, HCI_OP_READ_REMOTE_EXT_FEATURES,
3784 if (!ev->status && !test_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags)) {
3785 struct hci_cp_remote_name_req cp;
3786 memset(&cp, 0, sizeof(cp));
3787 bacpy(&cp.bdaddr, &conn->dst);
3788 cp.pscan_rep_mode = 0x02;
3789 hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp);
3790 } else if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
3791 mgmt_device_connected(hdev, conn, NULL, 0);
3793 if (!hci_outgoing_auth_needed(hdev, conn)) {
3794 conn->state = BT_CONNECTED;
3795 hci_connect_cfm(conn, ev->status);
3796 hci_conn_drop(conn);
3800 hci_dev_unlock(hdev);
3803 static inline void handle_cmd_cnt_and_timer(struct hci_dev *hdev, u8 ncmd)
3805 cancel_delayed_work(&hdev->cmd_timer);
3808 if (!test_bit(HCI_RESET, &hdev->flags)) {
3810 cancel_delayed_work(&hdev->ncmd_timer);
3811 atomic_set(&hdev->cmd_cnt, 1);
3813 if (!hci_dev_test_flag(hdev, HCI_CMD_DRAIN_WORKQUEUE))
3814 queue_delayed_work(hdev->workqueue, &hdev->ncmd_timer,
3821 static u8 hci_cc_le_read_buffer_size_v2(struct hci_dev *hdev, void *data,
3822 struct sk_buff *skb)
3824 struct hci_rp_le_read_buffer_size_v2 *rp = data;
3826 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
3831 hdev->le_mtu = __le16_to_cpu(rp->acl_mtu);
3832 hdev->le_pkts = rp->acl_max_pkt;
3833 hdev->iso_mtu = __le16_to_cpu(rp->iso_mtu);
3834 hdev->iso_pkts = rp->iso_max_pkt;
3836 hdev->le_cnt = hdev->le_pkts;
3837 hdev->iso_cnt = hdev->iso_pkts;
3839 BT_DBG("%s acl mtu %d:%d iso mtu %d:%d", hdev->name, hdev->acl_mtu,
3840 hdev->acl_pkts, hdev->iso_mtu, hdev->iso_pkts);
3845 static u8 hci_cc_le_set_cig_params(struct hci_dev *hdev, void *data,
3846 struct sk_buff *skb)
3848 struct hci_rp_le_set_cig_params *rp = data;
3849 struct hci_conn *conn;
3852 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
3857 while ((conn = hci_conn_hash_lookup_cig(hdev, rp->cig_id))) {
3858 conn->state = BT_CLOSED;
3859 hci_connect_cfm(conn, rp->status);
3867 list_for_each_entry_rcu(conn, &hdev->conn_hash.list, list) {
3868 if (conn->type != ISO_LINK || conn->iso_qos.cig != rp->cig_id ||
3869 conn->state == BT_CONNECTED)
3872 conn->handle = __le16_to_cpu(rp->handle[i++]);
3874 bt_dev_dbg(hdev, "%p handle 0x%4.4x link %p", conn,
3875 conn->handle, conn->link);
3877 /* Create CIS if LE is already connected */
3878 if (conn->link && conn->link->state == BT_CONNECTED) {
3880 hci_le_create_cis(conn->link);
3884 if (i == rp->num_handles)
3891 hci_dev_unlock(hdev);
3896 static u8 hci_cc_le_setup_iso_path(struct hci_dev *hdev, void *data,
3897 struct sk_buff *skb)
3899 struct hci_rp_le_setup_iso_path *rp = data;
3900 struct hci_cp_le_setup_iso_path *cp;
3901 struct hci_conn *conn;
3903 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
3905 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SETUP_ISO_PATH);
3911 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
3916 hci_connect_cfm(conn, rp->status);
3921 switch (cp->direction) {
3922 /* Input (Host to Controller) */
3924 /* Only confirm connection if output only */
3925 if (conn->iso_qos.out.sdu && !conn->iso_qos.in.sdu)
3926 hci_connect_cfm(conn, rp->status);
3928 /* Output (Controller to Host) */
3930 /* Confirm connection since conn->iso_qos is always configured
3933 hci_connect_cfm(conn, rp->status);
3938 hci_dev_unlock(hdev);
3942 static void hci_cs_le_create_big(struct hci_dev *hdev, u8 status)
3944 bt_dev_dbg(hdev, "status 0x%2.2x", status);
3947 static u8 hci_cc_set_per_adv_param(struct hci_dev *hdev, void *data,
3948 struct sk_buff *skb)
3950 struct hci_ev_status *rp = data;
3951 struct hci_cp_le_set_per_adv_params *cp;
3953 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
3958 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_PER_ADV_PARAMS);
3962 /* TODO: set the conn state */
3966 static u8 hci_cc_le_set_per_adv_enable(struct hci_dev *hdev, void *data,
3967 struct sk_buff *skb)
3969 struct hci_ev_status *rp = data;
3972 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
3977 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_PER_ADV_ENABLE);
3984 hci_dev_set_flag(hdev, HCI_LE_PER_ADV);
3986 hci_dev_clear_flag(hdev, HCI_LE_PER_ADV);
3988 hci_dev_unlock(hdev);
3993 #define HCI_CC_VL(_op, _func, _min, _max) \
4001 #define HCI_CC(_op, _func, _len) \
4002 HCI_CC_VL(_op, _func, _len, _len)
4004 #define HCI_CC_STATUS(_op, _func) \
4005 HCI_CC(_op, _func, sizeof(struct hci_ev_status))
4007 static const struct hci_cc {
4009 u8 (*func)(struct hci_dev *hdev, void *data, struct sk_buff *skb);
4012 } hci_cc_table[] = {
4013 HCI_CC_STATUS(HCI_OP_INQUIRY_CANCEL, hci_cc_inquiry_cancel),
4014 HCI_CC_STATUS(HCI_OP_PERIODIC_INQ, hci_cc_periodic_inq),
4015 HCI_CC_STATUS(HCI_OP_EXIT_PERIODIC_INQ, hci_cc_exit_periodic_inq),
4016 HCI_CC_STATUS(HCI_OP_REMOTE_NAME_REQ_CANCEL,
4017 hci_cc_remote_name_req_cancel),
4018 HCI_CC(HCI_OP_ROLE_DISCOVERY, hci_cc_role_discovery,
4019 sizeof(struct hci_rp_role_discovery)),
4020 HCI_CC(HCI_OP_READ_LINK_POLICY, hci_cc_read_link_policy,
4021 sizeof(struct hci_rp_read_link_policy)),
4022 HCI_CC(HCI_OP_WRITE_LINK_POLICY, hci_cc_write_link_policy,
4023 sizeof(struct hci_rp_write_link_policy)),
4024 HCI_CC(HCI_OP_READ_DEF_LINK_POLICY, hci_cc_read_def_link_policy,
4025 sizeof(struct hci_rp_read_def_link_policy)),
4026 HCI_CC_STATUS(HCI_OP_WRITE_DEF_LINK_POLICY,
4027 hci_cc_write_def_link_policy),
4028 HCI_CC_STATUS(HCI_OP_RESET, hci_cc_reset),
4029 HCI_CC(HCI_OP_READ_STORED_LINK_KEY, hci_cc_read_stored_link_key,
4030 sizeof(struct hci_rp_read_stored_link_key)),
4031 HCI_CC(HCI_OP_DELETE_STORED_LINK_KEY, hci_cc_delete_stored_link_key,
4032 sizeof(struct hci_rp_delete_stored_link_key)),
4033 HCI_CC_STATUS(HCI_OP_WRITE_LOCAL_NAME, hci_cc_write_local_name),
4034 HCI_CC(HCI_OP_READ_LOCAL_NAME, hci_cc_read_local_name,
4035 sizeof(struct hci_rp_read_local_name)),
4036 HCI_CC_STATUS(HCI_OP_WRITE_AUTH_ENABLE, hci_cc_write_auth_enable),
4037 HCI_CC_STATUS(HCI_OP_WRITE_ENCRYPT_MODE, hci_cc_write_encrypt_mode),
4038 HCI_CC_STATUS(HCI_OP_WRITE_SCAN_ENABLE, hci_cc_write_scan_enable),
4039 HCI_CC_STATUS(HCI_OP_SET_EVENT_FLT, hci_cc_set_event_filter),
4040 HCI_CC(HCI_OP_READ_CLASS_OF_DEV, hci_cc_read_class_of_dev,
4041 sizeof(struct hci_rp_read_class_of_dev)),
4042 HCI_CC_STATUS(HCI_OP_WRITE_CLASS_OF_DEV, hci_cc_write_class_of_dev),
4043 HCI_CC(HCI_OP_READ_VOICE_SETTING, hci_cc_read_voice_setting,
4044 sizeof(struct hci_rp_read_voice_setting)),
4045 HCI_CC_STATUS(HCI_OP_WRITE_VOICE_SETTING, hci_cc_write_voice_setting),
4046 HCI_CC(HCI_OP_READ_NUM_SUPPORTED_IAC, hci_cc_read_num_supported_iac,
4047 sizeof(struct hci_rp_read_num_supported_iac)),
4048 HCI_CC_STATUS(HCI_OP_WRITE_SSP_MODE, hci_cc_write_ssp_mode),
4049 HCI_CC_STATUS(HCI_OP_WRITE_SC_SUPPORT, hci_cc_write_sc_support),
4050 HCI_CC(HCI_OP_READ_AUTH_PAYLOAD_TO, hci_cc_read_auth_payload_timeout,
4051 sizeof(struct hci_rp_read_auth_payload_to)),
4052 HCI_CC(HCI_OP_WRITE_AUTH_PAYLOAD_TO, hci_cc_write_auth_payload_timeout,
4053 sizeof(struct hci_rp_write_auth_payload_to)),
4054 HCI_CC(HCI_OP_READ_LOCAL_VERSION, hci_cc_read_local_version,
4055 sizeof(struct hci_rp_read_local_version)),
4056 HCI_CC(HCI_OP_READ_LOCAL_COMMANDS, hci_cc_read_local_commands,
4057 sizeof(struct hci_rp_read_local_commands)),
4058 HCI_CC(HCI_OP_READ_LOCAL_FEATURES, hci_cc_read_local_features,
4059 sizeof(struct hci_rp_read_local_features)),
4060 HCI_CC(HCI_OP_READ_LOCAL_EXT_FEATURES, hci_cc_read_local_ext_features,
4061 sizeof(struct hci_rp_read_local_ext_features)),
4062 HCI_CC(HCI_OP_READ_BUFFER_SIZE, hci_cc_read_buffer_size,
4063 sizeof(struct hci_rp_read_buffer_size)),
4064 HCI_CC(HCI_OP_READ_BD_ADDR, hci_cc_read_bd_addr,
4065 sizeof(struct hci_rp_read_bd_addr)),
4066 HCI_CC(HCI_OP_READ_LOCAL_PAIRING_OPTS, hci_cc_read_local_pairing_opts,
4067 sizeof(struct hci_rp_read_local_pairing_opts)),
4068 HCI_CC(HCI_OP_READ_PAGE_SCAN_ACTIVITY, hci_cc_read_page_scan_activity,
4069 sizeof(struct hci_rp_read_page_scan_activity)),
4070 HCI_CC_STATUS(HCI_OP_WRITE_PAGE_SCAN_ACTIVITY,
4071 hci_cc_write_page_scan_activity),
4072 HCI_CC(HCI_OP_READ_PAGE_SCAN_TYPE, hci_cc_read_page_scan_type,
4073 sizeof(struct hci_rp_read_page_scan_type)),
4074 HCI_CC_STATUS(HCI_OP_WRITE_PAGE_SCAN_TYPE, hci_cc_write_page_scan_type),
4075 HCI_CC(HCI_OP_READ_DATA_BLOCK_SIZE, hci_cc_read_data_block_size,
4076 sizeof(struct hci_rp_read_data_block_size)),
4077 HCI_CC(HCI_OP_READ_FLOW_CONTROL_MODE, hci_cc_read_flow_control_mode,
4078 sizeof(struct hci_rp_read_flow_control_mode)),
4079 HCI_CC(HCI_OP_READ_LOCAL_AMP_INFO, hci_cc_read_local_amp_info,
4080 sizeof(struct hci_rp_read_local_amp_info)),
4081 HCI_CC(HCI_OP_READ_CLOCK, hci_cc_read_clock,
4082 sizeof(struct hci_rp_read_clock)),
4083 HCI_CC(HCI_OP_READ_ENC_KEY_SIZE, hci_cc_read_enc_key_size,
4084 sizeof(struct hci_rp_read_enc_key_size)),
4085 HCI_CC(HCI_OP_READ_INQ_RSP_TX_POWER, hci_cc_read_inq_rsp_tx_power,
4086 sizeof(struct hci_rp_read_inq_rsp_tx_power)),
4087 HCI_CC(HCI_OP_READ_DEF_ERR_DATA_REPORTING,
4088 hci_cc_read_def_err_data_reporting,
4089 sizeof(struct hci_rp_read_def_err_data_reporting)),
4090 HCI_CC_STATUS(HCI_OP_WRITE_DEF_ERR_DATA_REPORTING,
4091 hci_cc_write_def_err_data_reporting),
4092 HCI_CC(HCI_OP_PIN_CODE_REPLY, hci_cc_pin_code_reply,
4093 sizeof(struct hci_rp_pin_code_reply)),
4094 HCI_CC(HCI_OP_PIN_CODE_NEG_REPLY, hci_cc_pin_code_neg_reply,
4095 sizeof(struct hci_rp_pin_code_neg_reply)),
4096 HCI_CC(HCI_OP_READ_LOCAL_OOB_DATA, hci_cc_read_local_oob_data,
4097 sizeof(struct hci_rp_read_local_oob_data)),
4098 HCI_CC(HCI_OP_READ_LOCAL_OOB_EXT_DATA, hci_cc_read_local_oob_ext_data,
4099 sizeof(struct hci_rp_read_local_oob_ext_data)),
4100 HCI_CC(HCI_OP_LE_READ_BUFFER_SIZE, hci_cc_le_read_buffer_size,
4101 sizeof(struct hci_rp_le_read_buffer_size)),
4102 HCI_CC(HCI_OP_LE_READ_LOCAL_FEATURES, hci_cc_le_read_local_features,
4103 sizeof(struct hci_rp_le_read_local_features)),
4104 HCI_CC(HCI_OP_LE_READ_ADV_TX_POWER, hci_cc_le_read_adv_tx_power,
4105 sizeof(struct hci_rp_le_read_adv_tx_power)),
4106 HCI_CC(HCI_OP_USER_CONFIRM_REPLY, hci_cc_user_confirm_reply,
4107 sizeof(struct hci_rp_user_confirm_reply)),
4108 HCI_CC(HCI_OP_USER_CONFIRM_NEG_REPLY, hci_cc_user_confirm_neg_reply,
4109 sizeof(struct hci_rp_user_confirm_reply)),
4110 HCI_CC(HCI_OP_USER_PASSKEY_REPLY, hci_cc_user_passkey_reply,
4111 sizeof(struct hci_rp_user_confirm_reply)),
4112 HCI_CC(HCI_OP_USER_PASSKEY_NEG_REPLY, hci_cc_user_passkey_neg_reply,
4113 sizeof(struct hci_rp_user_confirm_reply)),
4114 HCI_CC_STATUS(HCI_OP_LE_SET_RANDOM_ADDR, hci_cc_le_set_random_addr),
4115 HCI_CC_STATUS(HCI_OP_LE_SET_ADV_ENABLE, hci_cc_le_set_adv_enable),
4116 HCI_CC_STATUS(HCI_OP_LE_SET_SCAN_PARAM, hci_cc_le_set_scan_param),
4117 HCI_CC_STATUS(HCI_OP_LE_SET_SCAN_ENABLE, hci_cc_le_set_scan_enable),
4118 HCI_CC(HCI_OP_LE_READ_ACCEPT_LIST_SIZE,
4119 hci_cc_le_read_accept_list_size,
4120 sizeof(struct hci_rp_le_read_accept_list_size)),
4121 HCI_CC_STATUS(HCI_OP_LE_CLEAR_ACCEPT_LIST, hci_cc_le_clear_accept_list),
4122 HCI_CC_STATUS(HCI_OP_LE_ADD_TO_ACCEPT_LIST,
4123 hci_cc_le_add_to_accept_list),
4124 HCI_CC_STATUS(HCI_OP_LE_DEL_FROM_ACCEPT_LIST,
4125 hci_cc_le_del_from_accept_list),
4126 HCI_CC(HCI_OP_LE_READ_SUPPORTED_STATES, hci_cc_le_read_supported_states,
4127 sizeof(struct hci_rp_le_read_supported_states)),
4128 HCI_CC(HCI_OP_LE_READ_DEF_DATA_LEN, hci_cc_le_read_def_data_len,
4129 sizeof(struct hci_rp_le_read_def_data_len)),
4130 HCI_CC_STATUS(HCI_OP_LE_WRITE_DEF_DATA_LEN,
4131 hci_cc_le_write_def_data_len),
4132 HCI_CC_STATUS(HCI_OP_LE_ADD_TO_RESOLV_LIST,
4133 hci_cc_le_add_to_resolv_list),
4134 HCI_CC_STATUS(HCI_OP_LE_DEL_FROM_RESOLV_LIST,
4135 hci_cc_le_del_from_resolv_list),
4136 HCI_CC_STATUS(HCI_OP_LE_CLEAR_RESOLV_LIST,
4137 hci_cc_le_clear_resolv_list),
4138 HCI_CC(HCI_OP_LE_READ_RESOLV_LIST_SIZE, hci_cc_le_read_resolv_list_size,
4139 sizeof(struct hci_rp_le_read_resolv_list_size)),
4140 HCI_CC_STATUS(HCI_OP_LE_SET_ADDR_RESOLV_ENABLE,
4141 hci_cc_le_set_addr_resolution_enable),
4142 HCI_CC(HCI_OP_LE_READ_MAX_DATA_LEN, hci_cc_le_read_max_data_len,
4143 sizeof(struct hci_rp_le_read_max_data_len)),
4144 HCI_CC_STATUS(HCI_OP_WRITE_LE_HOST_SUPPORTED,
4145 hci_cc_write_le_host_supported),
4146 HCI_CC_STATUS(HCI_OP_LE_SET_ADV_PARAM, hci_cc_set_adv_param),
4147 HCI_CC(HCI_OP_READ_RSSI, hci_cc_read_rssi,
4148 sizeof(struct hci_rp_read_rssi)),
4149 HCI_CC(HCI_OP_READ_TX_POWER, hci_cc_read_tx_power,
4150 sizeof(struct hci_rp_read_tx_power)),
4151 HCI_CC_STATUS(HCI_OP_WRITE_SSP_DEBUG_MODE, hci_cc_write_ssp_debug_mode),
4152 HCI_CC_STATUS(HCI_OP_LE_SET_EXT_SCAN_PARAMS,
4153 hci_cc_le_set_ext_scan_param),
4154 HCI_CC_STATUS(HCI_OP_LE_SET_EXT_SCAN_ENABLE,
4155 hci_cc_le_set_ext_scan_enable),
4156 HCI_CC_STATUS(HCI_OP_LE_SET_DEFAULT_PHY, hci_cc_le_set_default_phy),
4157 HCI_CC(HCI_OP_LE_READ_NUM_SUPPORTED_ADV_SETS,
4158 hci_cc_le_read_num_adv_sets,
4159 sizeof(struct hci_rp_le_read_num_supported_adv_sets)),
4160 HCI_CC(HCI_OP_LE_SET_EXT_ADV_PARAMS, hci_cc_set_ext_adv_param,
4161 sizeof(struct hci_rp_le_set_ext_adv_params)),
4162 HCI_CC_STATUS(HCI_OP_LE_SET_EXT_ADV_ENABLE,
4163 hci_cc_le_set_ext_adv_enable),
4164 HCI_CC_STATUS(HCI_OP_LE_SET_ADV_SET_RAND_ADDR,
4165 hci_cc_le_set_adv_set_random_addr),
4166 HCI_CC_STATUS(HCI_OP_LE_REMOVE_ADV_SET, hci_cc_le_remove_adv_set),
4167 HCI_CC_STATUS(HCI_OP_LE_CLEAR_ADV_SETS, hci_cc_le_clear_adv_sets),
4168 HCI_CC_STATUS(HCI_OP_LE_SET_PER_ADV_PARAMS, hci_cc_set_per_adv_param),
4169 HCI_CC_STATUS(HCI_OP_LE_SET_PER_ADV_ENABLE,
4170 hci_cc_le_set_per_adv_enable),
4171 HCI_CC(HCI_OP_LE_READ_TRANSMIT_POWER, hci_cc_le_read_transmit_power,
4172 sizeof(struct hci_rp_le_read_transmit_power)),
4174 HCI_CC(HCI_OP_ENABLE_RSSI, hci_cc_enable_rssi,
4175 sizeof(struct hci_cc_rsp_enable_rssi)),
4176 HCI_CC(HCI_OP_GET_RAW_RSSI, hci_cc_get_raw_rssi,
4177 sizeof(struct hci_cc_rp_get_raw_rssi)),
4179 HCI_CC_STATUS(HCI_OP_LE_SET_PRIVACY_MODE, hci_cc_le_set_privacy_mode),
4180 HCI_CC(HCI_OP_LE_READ_BUFFER_SIZE_V2, hci_cc_le_read_buffer_size_v2,
4181 sizeof(struct hci_rp_le_read_buffer_size_v2)),
4182 HCI_CC_VL(HCI_OP_LE_SET_CIG_PARAMS, hci_cc_le_set_cig_params,
4183 sizeof(struct hci_rp_le_set_cig_params), HCI_MAX_EVENT_SIZE),
4184 HCI_CC(HCI_OP_LE_SETUP_ISO_PATH, hci_cc_le_setup_iso_path,
4185 sizeof(struct hci_rp_le_setup_iso_path)),
4188 static u8 hci_cc_func(struct hci_dev *hdev, const struct hci_cc *cc,
4189 struct sk_buff *skb)
4193 if (skb->len < cc->min_len) {
4194 bt_dev_err(hdev, "unexpected cc 0x%4.4x length: %u < %u",
4195 cc->op, skb->len, cc->min_len);
4196 return HCI_ERROR_UNSPECIFIED;
4199 /* Just warn if the length is over max_len size it still be possible to
4200 * partially parse the cc so leave to callback to decide if that is
4203 if (skb->len > cc->max_len)
4204 bt_dev_warn(hdev, "unexpected cc 0x%4.4x length: %u > %u",
4205 cc->op, skb->len, cc->max_len);
4207 data = hci_cc_skb_pull(hdev, skb, cc->op, cc->min_len);
4209 return HCI_ERROR_UNSPECIFIED;
4211 return cc->func(hdev, data, skb);
4214 static void hci_cmd_complete_evt(struct hci_dev *hdev, void *data,
4215 struct sk_buff *skb, u16 *opcode, u8 *status,
4216 hci_req_complete_t *req_complete,
4217 hci_req_complete_skb_t *req_complete_skb)
4219 struct hci_ev_cmd_complete *ev = data;
4222 *opcode = __le16_to_cpu(ev->opcode);
4224 bt_dev_dbg(hdev, "opcode 0x%4.4x", *opcode);
4226 for (i = 0; i < ARRAY_SIZE(hci_cc_table); i++) {
4227 if (hci_cc_table[i].op == *opcode) {
4228 *status = hci_cc_func(hdev, &hci_cc_table[i], skb);
4233 if (i == ARRAY_SIZE(hci_cc_table)) {
4234 /* Unknown opcode, assume byte 0 contains the status, so
4235 * that e.g. __hci_cmd_sync() properly returns errors
4236 * for vendor specific commands send by HCI drivers.
4237 * If a vendor doesn't actually follow this convention we may
4238 * need to introduce a vendor CC table in order to properly set
4241 *status = skb->data[0];
4244 handle_cmd_cnt_and_timer(hdev, ev->ncmd);
4246 hci_req_cmd_complete(hdev, *opcode, *status, req_complete,
4249 if (hci_dev_test_flag(hdev, HCI_CMD_PENDING)) {
4251 "unexpected event for opcode 0x%4.4x", *opcode);
4255 if (atomic_read(&hdev->cmd_cnt) && !skb_queue_empty(&hdev->cmd_q))
4256 queue_work(hdev->workqueue, &hdev->cmd_work);
4259 static void hci_cs_le_create_cis(struct hci_dev *hdev, u8 status)
4261 struct hci_cp_le_create_cis *cp;
4264 bt_dev_dbg(hdev, "status 0x%2.2x", status);
4269 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_CREATE_CIS);
4275 /* Remove connection if command failed */
4276 for (i = 0; cp->num_cis; cp->num_cis--, i++) {
4277 struct hci_conn *conn;
4280 handle = __le16_to_cpu(cp->cis[i].cis_handle);
4282 conn = hci_conn_hash_lookup_handle(hdev, handle);
4284 conn->state = BT_CLOSED;
4285 hci_connect_cfm(conn, status);
4290 hci_dev_unlock(hdev);
4293 #define HCI_CS(_op, _func) \
4299 static const struct hci_cs {
4301 void (*func)(struct hci_dev *hdev, __u8 status);
4302 } hci_cs_table[] = {
4303 HCI_CS(HCI_OP_INQUIRY, hci_cs_inquiry),
4304 HCI_CS(HCI_OP_CREATE_CONN, hci_cs_create_conn),
4305 HCI_CS(HCI_OP_DISCONNECT, hci_cs_disconnect),
4306 HCI_CS(HCI_OP_ADD_SCO, hci_cs_add_sco),
4307 HCI_CS(HCI_OP_AUTH_REQUESTED, hci_cs_auth_requested),
4308 HCI_CS(HCI_OP_SET_CONN_ENCRYPT, hci_cs_set_conn_encrypt),
4309 HCI_CS(HCI_OP_REMOTE_NAME_REQ, hci_cs_remote_name_req),
4310 HCI_CS(HCI_OP_READ_REMOTE_FEATURES, hci_cs_read_remote_features),
4311 HCI_CS(HCI_OP_READ_REMOTE_EXT_FEATURES,
4312 hci_cs_read_remote_ext_features),
4313 HCI_CS(HCI_OP_SETUP_SYNC_CONN, hci_cs_setup_sync_conn),
4314 HCI_CS(HCI_OP_ENHANCED_SETUP_SYNC_CONN,
4315 hci_cs_enhanced_setup_sync_conn),
4316 HCI_CS(HCI_OP_SNIFF_MODE, hci_cs_sniff_mode),
4317 HCI_CS(HCI_OP_EXIT_SNIFF_MODE, hci_cs_exit_sniff_mode),
4318 HCI_CS(HCI_OP_SWITCH_ROLE, hci_cs_switch_role),
4319 HCI_CS(HCI_OP_LE_CREATE_CONN, hci_cs_le_create_conn),
4320 HCI_CS(HCI_OP_LE_READ_REMOTE_FEATURES, hci_cs_le_read_remote_features),
4321 HCI_CS(HCI_OP_LE_START_ENC, hci_cs_le_start_enc),
4322 HCI_CS(HCI_OP_LE_EXT_CREATE_CONN, hci_cs_le_ext_create_conn),
4323 HCI_CS(HCI_OP_LE_CREATE_CIS, hci_cs_le_create_cis),
4324 HCI_CS(HCI_OP_LE_CREATE_BIG, hci_cs_le_create_big),
4327 static void hci_cmd_status_evt(struct hci_dev *hdev, void *data,
4328 struct sk_buff *skb, u16 *opcode, u8 *status,
4329 hci_req_complete_t *req_complete,
4330 hci_req_complete_skb_t *req_complete_skb)
4332 struct hci_ev_cmd_status *ev = data;
4335 *opcode = __le16_to_cpu(ev->opcode);
4336 *status = ev->status;
4338 bt_dev_dbg(hdev, "opcode 0x%4.4x", *opcode);
4340 for (i = 0; i < ARRAY_SIZE(hci_cs_table); i++) {
4341 if (hci_cs_table[i].op == *opcode) {
4342 hci_cs_table[i].func(hdev, ev->status);
4347 handle_cmd_cnt_and_timer(hdev, ev->ncmd);
4349 /* Indicate request completion if the command failed. Also, if
4350 * we're not waiting for a special event and we get a success
4351 * command status we should try to flag the request as completed
4352 * (since for this kind of commands there will not be a command
4355 if (ev->status || (hdev->sent_cmd && !hci_skb_event(hdev->sent_cmd))) {
4356 hci_req_cmd_complete(hdev, *opcode, ev->status, req_complete,
4358 if (hci_dev_test_flag(hdev, HCI_CMD_PENDING)) {
4359 bt_dev_err(hdev, "unexpected event for opcode 0x%4.4x",
4365 if (atomic_read(&hdev->cmd_cnt) && !skb_queue_empty(&hdev->cmd_q))
4366 queue_work(hdev->workqueue, &hdev->cmd_work);
4369 static void hci_hardware_error_evt(struct hci_dev *hdev, void *data,
4370 struct sk_buff *skb)
4372 struct hci_ev_hardware_error *ev = data;
4374 bt_dev_dbg(hdev, "code 0x%2.2x", ev->code);
4376 hdev->hw_error_code = ev->code;
4378 queue_work(hdev->req_workqueue, &hdev->error_reset);
4381 static void hci_role_change_evt(struct hci_dev *hdev, void *data,
4382 struct sk_buff *skb)
4384 struct hci_ev_role_change *ev = data;
4385 struct hci_conn *conn;
4387 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
4391 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
4394 conn->role = ev->role;
4396 clear_bit(HCI_CONN_RSWITCH_PEND, &conn->flags);
4398 hci_role_switch_cfm(conn, ev->status, ev->role);
4401 hci_dev_unlock(hdev);
4404 static void hci_num_comp_pkts_evt(struct hci_dev *hdev, void *data,
4405 struct sk_buff *skb)
4407 struct hci_ev_num_comp_pkts *ev = data;
4410 if (!hci_ev_skb_pull(hdev, skb, HCI_EV_NUM_COMP_PKTS,
4411 flex_array_size(ev, handles, ev->num)))
4414 if (hdev->flow_ctl_mode != HCI_FLOW_CTL_MODE_PACKET_BASED) {
4415 bt_dev_err(hdev, "wrong event for mode %d", hdev->flow_ctl_mode);
4419 bt_dev_dbg(hdev, "num %d", ev->num);
4421 for (i = 0; i < ev->num; i++) {
4422 struct hci_comp_pkts_info *info = &ev->handles[i];
4423 struct hci_conn *conn;
4424 __u16 handle, count;
4426 handle = __le16_to_cpu(info->handle);
4427 count = __le16_to_cpu(info->count);
4429 conn = hci_conn_hash_lookup_handle(hdev, handle);
4433 conn->sent -= count;
4435 switch (conn->type) {
4437 hdev->acl_cnt += count;
4438 if (hdev->acl_cnt > hdev->acl_pkts)
4439 hdev->acl_cnt = hdev->acl_pkts;
4443 if (hdev->le_pkts) {
4444 hdev->le_cnt += count;
4445 if (hdev->le_cnt > hdev->le_pkts)
4446 hdev->le_cnt = hdev->le_pkts;
4448 hdev->acl_cnt += count;
4449 if (hdev->acl_cnt > hdev->acl_pkts)
4450 hdev->acl_cnt = hdev->acl_pkts;
4455 hdev->sco_cnt += count;
4456 if (hdev->sco_cnt > hdev->sco_pkts)
4457 hdev->sco_cnt = hdev->sco_pkts;
4461 if (hdev->iso_pkts) {
4462 hdev->iso_cnt += count;
4463 if (hdev->iso_cnt > hdev->iso_pkts)
4464 hdev->iso_cnt = hdev->iso_pkts;
4465 } else if (hdev->le_pkts) {
4466 hdev->le_cnt += count;
4467 if (hdev->le_cnt > hdev->le_pkts)
4468 hdev->le_cnt = hdev->le_pkts;
4470 hdev->acl_cnt += count;
4471 if (hdev->acl_cnt > hdev->acl_pkts)
4472 hdev->acl_cnt = hdev->acl_pkts;
4477 bt_dev_err(hdev, "unknown type %d conn %p",
4483 queue_work(hdev->workqueue, &hdev->tx_work);
4486 static struct hci_conn *__hci_conn_lookup_handle(struct hci_dev *hdev,
4489 struct hci_chan *chan;
4491 switch (hdev->dev_type) {
4493 return hci_conn_hash_lookup_handle(hdev, handle);
4495 chan = hci_chan_lookup_handle(hdev, handle);
4500 bt_dev_err(hdev, "unknown dev_type %d", hdev->dev_type);
4507 static void hci_num_comp_blocks_evt(struct hci_dev *hdev, void *data,
4508 struct sk_buff *skb)
4510 struct hci_ev_num_comp_blocks *ev = data;
4513 if (!hci_ev_skb_pull(hdev, skb, HCI_EV_NUM_COMP_BLOCKS,
4514 flex_array_size(ev, handles, ev->num_hndl)))
4517 if (hdev->flow_ctl_mode != HCI_FLOW_CTL_MODE_BLOCK_BASED) {
4518 bt_dev_err(hdev, "wrong event for mode %d",
4519 hdev->flow_ctl_mode);
4523 bt_dev_dbg(hdev, "num_blocks %d num_hndl %d", ev->num_blocks,
4526 for (i = 0; i < ev->num_hndl; i++) {
4527 struct hci_comp_blocks_info *info = &ev->handles[i];
4528 struct hci_conn *conn = NULL;
4529 __u16 handle, block_count;
4531 handle = __le16_to_cpu(info->handle);
4532 block_count = __le16_to_cpu(info->blocks);
4534 conn = __hci_conn_lookup_handle(hdev, handle);
4538 conn->sent -= block_count;
4540 switch (conn->type) {
4543 hdev->block_cnt += block_count;
4544 if (hdev->block_cnt > hdev->num_blocks)
4545 hdev->block_cnt = hdev->num_blocks;
4549 bt_dev_err(hdev, "unknown type %d conn %p",
4555 queue_work(hdev->workqueue, &hdev->tx_work);
4558 static void hci_mode_change_evt(struct hci_dev *hdev, void *data,
4559 struct sk_buff *skb)
4561 struct hci_ev_mode_change *ev = data;
4562 struct hci_conn *conn;
4564 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
4568 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
4570 conn->mode = ev->mode;
4572 if (!test_and_clear_bit(HCI_CONN_MODE_CHANGE_PEND,
4574 if (conn->mode == HCI_CM_ACTIVE)
4575 set_bit(HCI_CONN_POWER_SAVE, &conn->flags);
4577 clear_bit(HCI_CONN_POWER_SAVE, &conn->flags);
4580 if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags))
4581 hci_sco_setup(conn, ev->status);
4584 hci_dev_unlock(hdev);
4587 static void hci_pin_code_request_evt(struct hci_dev *hdev, void *data,
4588 struct sk_buff *skb)
4590 struct hci_ev_pin_code_req *ev = data;
4591 struct hci_conn *conn;
4593 bt_dev_dbg(hdev, "");
4597 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
4601 if (conn->state == BT_CONNECTED) {
4602 hci_conn_hold(conn);
4603 conn->disc_timeout = HCI_PAIRING_TIMEOUT;
4604 hci_conn_drop(conn);
4607 if (!hci_dev_test_flag(hdev, HCI_BONDABLE) &&
4608 !test_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags)) {
4609 hci_send_cmd(hdev, HCI_OP_PIN_CODE_NEG_REPLY,
4610 sizeof(ev->bdaddr), &ev->bdaddr);
4611 } else if (hci_dev_test_flag(hdev, HCI_MGMT)) {
4614 if (conn->pending_sec_level == BT_SECURITY_HIGH)
4619 mgmt_pin_code_request(hdev, &ev->bdaddr, secure);
4623 hci_dev_unlock(hdev);
4626 static void conn_set_key(struct hci_conn *conn, u8 key_type, u8 pin_len)
4628 if (key_type == HCI_LK_CHANGED_COMBINATION)
4631 conn->pin_length = pin_len;
4632 conn->key_type = key_type;
4635 case HCI_LK_LOCAL_UNIT:
4636 case HCI_LK_REMOTE_UNIT:
4637 case HCI_LK_DEBUG_COMBINATION:
4639 case HCI_LK_COMBINATION:
4641 conn->pending_sec_level = BT_SECURITY_HIGH;
4643 conn->pending_sec_level = BT_SECURITY_MEDIUM;
4645 case HCI_LK_UNAUTH_COMBINATION_P192:
4646 case HCI_LK_UNAUTH_COMBINATION_P256:
4647 conn->pending_sec_level = BT_SECURITY_MEDIUM;
4649 case HCI_LK_AUTH_COMBINATION_P192:
4650 conn->pending_sec_level = BT_SECURITY_HIGH;
4652 case HCI_LK_AUTH_COMBINATION_P256:
4653 conn->pending_sec_level = BT_SECURITY_FIPS;
4658 static void hci_link_key_request_evt(struct hci_dev *hdev, void *data,
4659 struct sk_buff *skb)
4661 struct hci_ev_link_key_req *ev = data;
4662 struct hci_cp_link_key_reply cp;
4663 struct hci_conn *conn;
4664 struct link_key *key;
4666 bt_dev_dbg(hdev, "");
4668 if (!hci_dev_test_flag(hdev, HCI_MGMT))
4673 key = hci_find_link_key(hdev, &ev->bdaddr);
4675 bt_dev_dbg(hdev, "link key not found for %pMR", &ev->bdaddr);
4679 bt_dev_dbg(hdev, "found key type %u for %pMR", key->type, &ev->bdaddr);
4681 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
4683 clear_bit(HCI_CONN_NEW_LINK_KEY, &conn->flags);
4685 if ((key->type == HCI_LK_UNAUTH_COMBINATION_P192 ||
4686 key->type == HCI_LK_UNAUTH_COMBINATION_P256) &&
4687 conn->auth_type != 0xff && (conn->auth_type & 0x01)) {
4688 bt_dev_dbg(hdev, "ignoring unauthenticated key");
4692 if (key->type == HCI_LK_COMBINATION && key->pin_len < 16 &&
4693 (conn->pending_sec_level == BT_SECURITY_HIGH ||
4694 conn->pending_sec_level == BT_SECURITY_FIPS)) {
4695 bt_dev_dbg(hdev, "ignoring key unauthenticated for high security");
4699 conn_set_key(conn, key->type, key->pin_len);
4702 bacpy(&cp.bdaddr, &ev->bdaddr);
4703 memcpy(cp.link_key, key->val, HCI_LINK_KEY_SIZE);
4705 hci_send_cmd(hdev, HCI_OP_LINK_KEY_REPLY, sizeof(cp), &cp);
4707 hci_dev_unlock(hdev);
4712 hci_send_cmd(hdev, HCI_OP_LINK_KEY_NEG_REPLY, 6, &ev->bdaddr);
4713 hci_dev_unlock(hdev);
4716 static void hci_link_key_notify_evt(struct hci_dev *hdev, void *data,
4717 struct sk_buff *skb)
4719 struct hci_ev_link_key_notify *ev = data;
4720 struct hci_conn *conn;
4721 struct link_key *key;
4725 bt_dev_dbg(hdev, "");
4729 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
4733 hci_conn_hold(conn);
4734 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
4735 hci_conn_drop(conn);
4737 set_bit(HCI_CONN_NEW_LINK_KEY, &conn->flags);
4738 conn_set_key(conn, ev->key_type, conn->pin_length);
4740 if (!hci_dev_test_flag(hdev, HCI_MGMT))
4743 key = hci_add_link_key(hdev, conn, &ev->bdaddr, ev->link_key,
4744 ev->key_type, pin_len, &persistent);
4748 /* Update connection information since adding the key will have
4749 * fixed up the type in the case of changed combination keys.
4751 if (ev->key_type == HCI_LK_CHANGED_COMBINATION)
4752 conn_set_key(conn, key->type, key->pin_len);
4754 mgmt_new_link_key(hdev, key, persistent);
4756 /* Keep debug keys around only if the HCI_KEEP_DEBUG_KEYS flag
4757 * is set. If it's not set simply remove the key from the kernel
4758 * list (we've still notified user space about it but with
4759 * store_hint being 0).
4761 if (key->type == HCI_LK_DEBUG_COMBINATION &&
4762 !hci_dev_test_flag(hdev, HCI_KEEP_DEBUG_KEYS)) {
4763 list_del_rcu(&key->list);
4764 kfree_rcu(key, rcu);
4769 clear_bit(HCI_CONN_FLUSH_KEY, &conn->flags);
4771 set_bit(HCI_CONN_FLUSH_KEY, &conn->flags);
4774 hci_dev_unlock(hdev);
4777 static void hci_clock_offset_evt(struct hci_dev *hdev, void *data,
4778 struct sk_buff *skb)
4780 struct hci_ev_clock_offset *ev = data;
4781 struct hci_conn *conn;
4783 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
4787 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
4788 if (conn && !ev->status) {
4789 struct inquiry_entry *ie;
4791 ie = hci_inquiry_cache_lookup(hdev, &conn->dst);
4793 ie->data.clock_offset = ev->clock_offset;
4794 ie->timestamp = jiffies;
4798 hci_dev_unlock(hdev);
4801 static void hci_pkt_type_change_evt(struct hci_dev *hdev, void *data,
4802 struct sk_buff *skb)
4804 struct hci_ev_pkt_type_change *ev = data;
4805 struct hci_conn *conn;
4807 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
4811 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
4812 if (conn && !ev->status)
4813 conn->pkt_type = __le16_to_cpu(ev->pkt_type);
4815 hci_dev_unlock(hdev);
4818 static void hci_pscan_rep_mode_evt(struct hci_dev *hdev, void *data,
4819 struct sk_buff *skb)
4821 struct hci_ev_pscan_rep_mode *ev = data;
4822 struct inquiry_entry *ie;
4824 bt_dev_dbg(hdev, "");
4828 ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
4830 ie->data.pscan_rep_mode = ev->pscan_rep_mode;
4831 ie->timestamp = jiffies;
4834 hci_dev_unlock(hdev);
4837 static void hci_inquiry_result_with_rssi_evt(struct hci_dev *hdev, void *edata,
4838 struct sk_buff *skb)
4840 struct hci_ev_inquiry_result_rssi *ev = edata;
4841 struct inquiry_data data;
4844 bt_dev_dbg(hdev, "num_rsp %d", ev->num);
4849 if (hci_dev_test_flag(hdev, HCI_PERIODIC_INQ))
4854 if (skb->len == array_size(ev->num,
4855 sizeof(struct inquiry_info_rssi_pscan))) {
4856 struct inquiry_info_rssi_pscan *info;
4858 for (i = 0; i < ev->num; i++) {
4861 info = hci_ev_skb_pull(hdev, skb,
4862 HCI_EV_INQUIRY_RESULT_WITH_RSSI,
4865 bt_dev_err(hdev, "Malformed HCI Event: 0x%2.2x",
4866 HCI_EV_INQUIRY_RESULT_WITH_RSSI);
4870 bacpy(&data.bdaddr, &info->bdaddr);
4871 data.pscan_rep_mode = info->pscan_rep_mode;
4872 data.pscan_period_mode = info->pscan_period_mode;
4873 data.pscan_mode = info->pscan_mode;
4874 memcpy(data.dev_class, info->dev_class, 3);
4875 data.clock_offset = info->clock_offset;
4876 data.rssi = info->rssi;
4877 data.ssp_mode = 0x00;
4879 flags = hci_inquiry_cache_update(hdev, &data, false);
4881 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
4882 info->dev_class, info->rssi,
4883 flags, NULL, 0, NULL, 0, 0);
4885 } else if (skb->len == array_size(ev->num,
4886 sizeof(struct inquiry_info_rssi))) {
4887 struct inquiry_info_rssi *info;
4889 for (i = 0; i < ev->num; i++) {
4892 info = hci_ev_skb_pull(hdev, skb,
4893 HCI_EV_INQUIRY_RESULT_WITH_RSSI,
4896 bt_dev_err(hdev, "Malformed HCI Event: 0x%2.2x",
4897 HCI_EV_INQUIRY_RESULT_WITH_RSSI);
4901 bacpy(&data.bdaddr, &info->bdaddr);
4902 data.pscan_rep_mode = info->pscan_rep_mode;
4903 data.pscan_period_mode = info->pscan_period_mode;
4904 data.pscan_mode = 0x00;
4905 memcpy(data.dev_class, info->dev_class, 3);
4906 data.clock_offset = info->clock_offset;
4907 data.rssi = info->rssi;
4908 data.ssp_mode = 0x00;
4910 flags = hci_inquiry_cache_update(hdev, &data, false);
4912 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
4913 info->dev_class, info->rssi,
4914 flags, NULL, 0, NULL, 0, 0);
4917 bt_dev_err(hdev, "Malformed HCI Event: 0x%2.2x",
4918 HCI_EV_INQUIRY_RESULT_WITH_RSSI);
4921 hci_dev_unlock(hdev);
4924 static void hci_remote_ext_features_evt(struct hci_dev *hdev, void *data,
4925 struct sk_buff *skb)
4927 struct hci_ev_remote_ext_features *ev = data;
4928 struct hci_conn *conn;
4930 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
4934 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
4938 if (ev->page < HCI_MAX_PAGES)
4939 memcpy(conn->features[ev->page], ev->features, 8);
4941 if (!ev->status && ev->page == 0x01) {
4942 struct inquiry_entry *ie;
4944 ie = hci_inquiry_cache_lookup(hdev, &conn->dst);
4946 ie->data.ssp_mode = (ev->features[0] & LMP_HOST_SSP);
4948 if (ev->features[0] & LMP_HOST_SSP) {
4949 set_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
4951 /* It is mandatory by the Bluetooth specification that
4952 * Extended Inquiry Results are only used when Secure
4953 * Simple Pairing is enabled, but some devices violate
4956 * To make these devices work, the internal SSP
4957 * enabled flag needs to be cleared if the remote host
4958 * features do not indicate SSP support */
4959 clear_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
4962 if (ev->features[0] & LMP_HOST_SC)
4963 set_bit(HCI_CONN_SC_ENABLED, &conn->flags);
4966 if (conn->state != BT_CONFIG)
4969 if (!ev->status && !test_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags)) {
4970 struct hci_cp_remote_name_req cp;
4971 memset(&cp, 0, sizeof(cp));
4972 bacpy(&cp.bdaddr, &conn->dst);
4973 cp.pscan_rep_mode = 0x02;
4974 hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp);
4975 } else if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
4976 mgmt_device_connected(hdev, conn, NULL, 0);
4978 if (!hci_outgoing_auth_needed(hdev, conn)) {
4979 conn->state = BT_CONNECTED;
4980 hci_connect_cfm(conn, ev->status);
4981 hci_conn_drop(conn);
4985 hci_dev_unlock(hdev);
4988 static void hci_sync_conn_complete_evt(struct hci_dev *hdev, void *data,
4989 struct sk_buff *skb)
4991 struct hci_ev_sync_conn_complete *ev = data;
4992 struct hci_conn *conn;
4993 u8 status = ev->status;
4995 switch (ev->link_type) {
5000 /* As per Core 5.3 Vol 4 Part E 7.7.35 (p.2219), Link_Type
5001 * for HCI_Synchronous_Connection_Complete is limited to
5002 * either SCO or eSCO
5004 bt_dev_err(hdev, "Ignoring connect complete event for invalid link type");
5008 bt_dev_dbg(hdev, "status 0x%2.2x", status);
5012 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr);
5014 if (ev->link_type == ESCO_LINK)
5017 /* When the link type in the event indicates SCO connection
5018 * and lookup of the connection object fails, then check
5019 * if an eSCO connection object exists.
5021 * The core limits the synchronous connections to either
5022 * SCO or eSCO. The eSCO connection is preferred and tried
5023 * to be setup first and until successfully established,
5024 * the link type will be hinted as eSCO.
5026 conn = hci_conn_hash_lookup_ba(hdev, ESCO_LINK, &ev->bdaddr);
5031 /* The HCI_Synchronous_Connection_Complete event is only sent once per connection.
5032 * Processing it more than once per connection can corrupt kernel memory.
5034 * As the connection handle is set here for the first time, it indicates
5035 * whether the connection is already set up.
5037 if (conn->handle != HCI_CONN_HANDLE_UNSET) {
5038 bt_dev_err(hdev, "Ignoring HCI_Sync_Conn_Complete event for existing connection");
5044 conn->handle = __le16_to_cpu(ev->handle);
5045 if (conn->handle > HCI_CONN_HANDLE_MAX) {
5046 bt_dev_err(hdev, "Invalid handle: 0x%4.4x > 0x%4.4x",
5047 conn->handle, HCI_CONN_HANDLE_MAX);
5048 status = HCI_ERROR_INVALID_PARAMETERS;
5049 conn->state = BT_CLOSED;
5053 conn->state = BT_CONNECTED;
5054 conn->type = ev->link_type;
5056 hci_debugfs_create_conn(conn);
5057 hci_conn_add_sysfs(conn);
5060 case 0x10: /* Connection Accept Timeout */
5061 case 0x0d: /* Connection Rejected due to Limited Resources */
5062 case 0x11: /* Unsupported Feature or Parameter Value */
5063 case 0x1c: /* SCO interval rejected */
5064 case 0x1a: /* Unsupported Remote Feature */
5065 case 0x1e: /* Invalid LMP Parameters */
5066 case 0x1f: /* Unspecified error */
5067 case 0x20: /* Unsupported LMP Parameter value */
5069 conn->pkt_type = (hdev->esco_type & SCO_ESCO_MASK) |
5070 (hdev->esco_type & EDR_ESCO_MASK);
5071 if (hci_setup_sync(conn, conn->link->handle))
5077 conn->state = BT_CLOSED;
5081 bt_dev_dbg(hdev, "SCO connected with air mode: %02x", ev->air_mode);
5082 /* Notify only in case of SCO over HCI transport data path which
5083 * is zero and non-zero value shall be non-HCI transport data path
5085 if (conn->codec.data_path == 0 && hdev->notify) {
5086 switch (ev->air_mode) {
5088 hdev->notify(hdev, HCI_NOTIFY_ENABLE_SCO_CVSD);
5091 hdev->notify(hdev, HCI_NOTIFY_ENABLE_SCO_TRANSP);
5096 hci_connect_cfm(conn, status);
5101 hci_dev_unlock(hdev);
5104 static inline size_t eir_get_length(u8 *eir, size_t eir_len)
5108 while (parsed < eir_len) {
5109 u8 field_len = eir[0];
5114 parsed += field_len + 1;
5115 eir += field_len + 1;
5121 static void hci_extended_inquiry_result_evt(struct hci_dev *hdev, void *edata,
5122 struct sk_buff *skb)
5124 struct hci_ev_ext_inquiry_result *ev = edata;
5125 struct inquiry_data data;
5129 if (!hci_ev_skb_pull(hdev, skb, HCI_EV_EXTENDED_INQUIRY_RESULT,
5130 flex_array_size(ev, info, ev->num)))
5133 bt_dev_dbg(hdev, "num %d", ev->num);
5138 if (hci_dev_test_flag(hdev, HCI_PERIODIC_INQ))
5143 for (i = 0; i < ev->num; i++) {
5144 struct extended_inquiry_info *info = &ev->info[i];
5148 bacpy(&data.bdaddr, &info->bdaddr);
5149 data.pscan_rep_mode = info->pscan_rep_mode;
5150 data.pscan_period_mode = info->pscan_period_mode;
5151 data.pscan_mode = 0x00;
5152 memcpy(data.dev_class, info->dev_class, 3);
5153 data.clock_offset = info->clock_offset;
5154 data.rssi = info->rssi;
5155 data.ssp_mode = 0x01;
5157 if (hci_dev_test_flag(hdev, HCI_MGMT))
5158 name_known = eir_get_data(info->data,
5160 EIR_NAME_COMPLETE, NULL);
5164 flags = hci_inquiry_cache_update(hdev, &data, name_known);
5166 eir_len = eir_get_length(info->data, sizeof(info->data));
5168 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
5169 info->dev_class, info->rssi,
5170 flags, info->data, eir_len, NULL, 0, 0);
5173 hci_dev_unlock(hdev);
5176 static void hci_key_refresh_complete_evt(struct hci_dev *hdev, void *data,
5177 struct sk_buff *skb)
5179 struct hci_ev_key_refresh_complete *ev = data;
5180 struct hci_conn *conn;
5182 bt_dev_dbg(hdev, "status 0x%2.2x handle 0x%4.4x", ev->status,
5183 __le16_to_cpu(ev->handle));
5187 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
5191 /* For BR/EDR the necessary steps are taken through the
5192 * auth_complete event.
5194 if (conn->type != LE_LINK)
5198 conn->sec_level = conn->pending_sec_level;
5200 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
5202 if (ev->status && conn->state == BT_CONNECTED) {
5203 hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE);
5204 hci_conn_drop(conn);
5208 if (conn->state == BT_CONFIG) {
5210 conn->state = BT_CONNECTED;
5212 hci_connect_cfm(conn, ev->status);
5213 hci_conn_drop(conn);
5215 hci_auth_cfm(conn, ev->status);
5217 hci_conn_hold(conn);
5218 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
5219 hci_conn_drop(conn);
5223 hci_dev_unlock(hdev);
5226 static u8 hci_get_auth_req(struct hci_conn *conn)
5228 /* If remote requests no-bonding follow that lead */
5229 if (conn->remote_auth == HCI_AT_NO_BONDING ||
5230 conn->remote_auth == HCI_AT_NO_BONDING_MITM)
5231 return conn->remote_auth | (conn->auth_type & 0x01);
5233 /* If both remote and local have enough IO capabilities, require
5236 if (conn->remote_cap != HCI_IO_NO_INPUT_OUTPUT &&
5237 conn->io_capability != HCI_IO_NO_INPUT_OUTPUT)
5238 return conn->remote_auth | 0x01;
5240 /* No MITM protection possible so ignore remote requirement */
5241 return (conn->remote_auth & ~0x01) | (conn->auth_type & 0x01);
5244 static u8 bredr_oob_data_present(struct hci_conn *conn)
5246 struct hci_dev *hdev = conn->hdev;
5247 struct oob_data *data;
5249 data = hci_find_remote_oob_data(hdev, &conn->dst, BDADDR_BREDR);
5253 if (bredr_sc_enabled(hdev)) {
5254 /* When Secure Connections is enabled, then just
5255 * return the present value stored with the OOB
5256 * data. The stored value contains the right present
5257 * information. However it can only be trusted when
5258 * not in Secure Connection Only mode.
5260 if (!hci_dev_test_flag(hdev, HCI_SC_ONLY))
5261 return data->present;
5263 /* When Secure Connections Only mode is enabled, then
5264 * the P-256 values are required. If they are not
5265 * available, then do not declare that OOB data is
5268 if (!memcmp(data->rand256, ZERO_KEY, 16) ||
5269 !memcmp(data->hash256, ZERO_KEY, 16))
5275 /* When Secure Connections is not enabled or actually
5276 * not supported by the hardware, then check that if
5277 * P-192 data values are present.
5279 if (!memcmp(data->rand192, ZERO_KEY, 16) ||
5280 !memcmp(data->hash192, ZERO_KEY, 16))
5286 static void hci_io_capa_request_evt(struct hci_dev *hdev, void *data,
5287 struct sk_buff *skb)
5289 struct hci_ev_io_capa_request *ev = data;
5290 struct hci_conn *conn;
5292 bt_dev_dbg(hdev, "");
5296 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
5300 hci_conn_hold(conn);
5302 if (!hci_dev_test_flag(hdev, HCI_MGMT))
5305 /* Allow pairing if we're pairable, the initiators of the
5306 * pairing or if the remote is not requesting bonding.
5308 if (hci_dev_test_flag(hdev, HCI_BONDABLE) ||
5309 test_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags) ||
5310 (conn->remote_auth & ~0x01) == HCI_AT_NO_BONDING) {
5311 struct hci_cp_io_capability_reply cp;
5313 bacpy(&cp.bdaddr, &ev->bdaddr);
5314 /* Change the IO capability from KeyboardDisplay
5315 * to DisplayYesNo as it is not supported by BT spec. */
5316 cp.capability = (conn->io_capability == 0x04) ?
5317 HCI_IO_DISPLAY_YESNO : conn->io_capability;
5319 /* If we are initiators, there is no remote information yet */
5320 if (conn->remote_auth == 0xff) {
5321 /* Request MITM protection if our IO caps allow it
5322 * except for the no-bonding case.
5324 if (conn->io_capability != HCI_IO_NO_INPUT_OUTPUT &&
5325 conn->auth_type != HCI_AT_NO_BONDING)
5326 conn->auth_type |= 0x01;
5328 conn->auth_type = hci_get_auth_req(conn);
5331 /* If we're not bondable, force one of the non-bondable
5332 * authentication requirement values.
5334 if (!hci_dev_test_flag(hdev, HCI_BONDABLE))
5335 conn->auth_type &= HCI_AT_NO_BONDING_MITM;
5337 cp.authentication = conn->auth_type;
5338 cp.oob_data = bredr_oob_data_present(conn);
5340 hci_send_cmd(hdev, HCI_OP_IO_CAPABILITY_REPLY,
5343 struct hci_cp_io_capability_neg_reply cp;
5345 bacpy(&cp.bdaddr, &ev->bdaddr);
5346 cp.reason = HCI_ERROR_PAIRING_NOT_ALLOWED;
5348 hci_send_cmd(hdev, HCI_OP_IO_CAPABILITY_NEG_REPLY,
5353 hci_dev_unlock(hdev);
5356 static void hci_io_capa_reply_evt(struct hci_dev *hdev, void *data,
5357 struct sk_buff *skb)
5359 struct hci_ev_io_capa_reply *ev = data;
5360 struct hci_conn *conn;
5362 bt_dev_dbg(hdev, "");
5366 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
5370 conn->remote_cap = ev->capability;
5371 conn->remote_auth = ev->authentication;
5374 hci_dev_unlock(hdev);
5377 static void hci_user_confirm_request_evt(struct hci_dev *hdev, void *data,
5378 struct sk_buff *skb)
5380 struct hci_ev_user_confirm_req *ev = data;
5381 int loc_mitm, rem_mitm, confirm_hint = 0;
5382 struct hci_conn *conn;
5384 bt_dev_dbg(hdev, "");
5388 if (!hci_dev_test_flag(hdev, HCI_MGMT))
5391 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
5395 loc_mitm = (conn->auth_type & 0x01);
5396 rem_mitm = (conn->remote_auth & 0x01);
5398 /* If we require MITM but the remote device can't provide that
5399 * (it has NoInputNoOutput) then reject the confirmation
5400 * request. We check the security level here since it doesn't
5401 * necessarily match conn->auth_type.
5403 if (conn->pending_sec_level > BT_SECURITY_MEDIUM &&
5404 conn->remote_cap == HCI_IO_NO_INPUT_OUTPUT) {
5405 bt_dev_dbg(hdev, "Rejecting request: remote device can't provide MITM");
5406 hci_send_cmd(hdev, HCI_OP_USER_CONFIRM_NEG_REPLY,
5407 sizeof(ev->bdaddr), &ev->bdaddr);
5411 /* If no side requires MITM protection; auto-accept */
5412 if ((!loc_mitm || conn->remote_cap == HCI_IO_NO_INPUT_OUTPUT) &&
5413 (!rem_mitm || conn->io_capability == HCI_IO_NO_INPUT_OUTPUT)) {
5415 /* If we're not the initiators request authorization to
5416 * proceed from user space (mgmt_user_confirm with
5417 * confirm_hint set to 1). The exception is if neither
5418 * side had MITM or if the local IO capability is
5419 * NoInputNoOutput, in which case we do auto-accept
5421 if (!test_bit(HCI_CONN_AUTH_PEND, &conn->flags) &&
5422 conn->io_capability != HCI_IO_NO_INPUT_OUTPUT &&
5423 (loc_mitm || rem_mitm)) {
5424 bt_dev_dbg(hdev, "Confirming auto-accept as acceptor");
5429 /* If there already exists link key in local host, leave the
5430 * decision to user space since the remote device could be
5431 * legitimate or malicious.
5433 if (hci_find_link_key(hdev, &ev->bdaddr)) {
5434 bt_dev_dbg(hdev, "Local host already has link key");
5439 BT_DBG("Auto-accept of user confirmation with %ums delay",
5440 hdev->auto_accept_delay);
5442 if (hdev->auto_accept_delay > 0) {
5443 int delay = msecs_to_jiffies(hdev->auto_accept_delay);
5444 queue_delayed_work(conn->hdev->workqueue,
5445 &conn->auto_accept_work, delay);
5449 hci_send_cmd(hdev, HCI_OP_USER_CONFIRM_REPLY,
5450 sizeof(ev->bdaddr), &ev->bdaddr);
5455 mgmt_user_confirm_request(hdev, &ev->bdaddr, ACL_LINK, 0,
5456 le32_to_cpu(ev->passkey), confirm_hint);
5459 hci_dev_unlock(hdev);
5462 static void hci_user_passkey_request_evt(struct hci_dev *hdev, void *data,
5463 struct sk_buff *skb)
5465 struct hci_ev_user_passkey_req *ev = data;
5467 bt_dev_dbg(hdev, "");
5469 if (hci_dev_test_flag(hdev, HCI_MGMT))
5470 mgmt_user_passkey_request(hdev, &ev->bdaddr, ACL_LINK, 0);
5473 static void hci_user_passkey_notify_evt(struct hci_dev *hdev, void *data,
5474 struct sk_buff *skb)
5476 struct hci_ev_user_passkey_notify *ev = data;
5477 struct hci_conn *conn;
5479 bt_dev_dbg(hdev, "");
5481 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
5485 conn->passkey_notify = __le32_to_cpu(ev->passkey);
5486 conn->passkey_entered = 0;
5488 if (hci_dev_test_flag(hdev, HCI_MGMT))
5489 mgmt_user_passkey_notify(hdev, &conn->dst, conn->type,
5490 conn->dst_type, conn->passkey_notify,
5491 conn->passkey_entered);
5494 static void hci_keypress_notify_evt(struct hci_dev *hdev, void *data,
5495 struct sk_buff *skb)
5497 struct hci_ev_keypress_notify *ev = data;
5498 struct hci_conn *conn;
5500 bt_dev_dbg(hdev, "");
5502 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
5507 case HCI_KEYPRESS_STARTED:
5508 conn->passkey_entered = 0;
5511 case HCI_KEYPRESS_ENTERED:
5512 conn->passkey_entered++;
5515 case HCI_KEYPRESS_ERASED:
5516 conn->passkey_entered--;
5519 case HCI_KEYPRESS_CLEARED:
5520 conn->passkey_entered = 0;
5523 case HCI_KEYPRESS_COMPLETED:
5527 if (hci_dev_test_flag(hdev, HCI_MGMT))
5528 mgmt_user_passkey_notify(hdev, &conn->dst, conn->type,
5529 conn->dst_type, conn->passkey_notify,
5530 conn->passkey_entered);
5533 static void hci_simple_pair_complete_evt(struct hci_dev *hdev, void *data,
5534 struct sk_buff *skb)
5536 struct hci_ev_simple_pair_complete *ev = data;
5537 struct hci_conn *conn;
5539 bt_dev_dbg(hdev, "");
5543 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
5547 /* Reset the authentication requirement to unknown */
5548 conn->remote_auth = 0xff;
5550 /* To avoid duplicate auth_failed events to user space we check
5551 * the HCI_CONN_AUTH_PEND flag which will be set if we
5552 * initiated the authentication. A traditional auth_complete
5553 * event gets always produced as initiator and is also mapped to
5554 * the mgmt_auth_failed event */
5555 if (!test_bit(HCI_CONN_AUTH_PEND, &conn->flags) && ev->status)
5556 mgmt_auth_failed(conn, ev->status);
5558 hci_conn_drop(conn);
5561 hci_dev_unlock(hdev);
5564 static void hci_remote_host_features_evt(struct hci_dev *hdev, void *data,
5565 struct sk_buff *skb)
5567 struct hci_ev_remote_host_features *ev = data;
5568 struct inquiry_entry *ie;
5569 struct hci_conn *conn;
5571 bt_dev_dbg(hdev, "");
5575 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
5577 memcpy(conn->features[1], ev->features, 8);
5579 ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
5581 ie->data.ssp_mode = (ev->features[0] & LMP_HOST_SSP);
5583 hci_dev_unlock(hdev);
5586 static void hci_remote_oob_data_request_evt(struct hci_dev *hdev, void *edata,
5587 struct sk_buff *skb)
5589 struct hci_ev_remote_oob_data_request *ev = edata;
5590 struct oob_data *data;
5592 bt_dev_dbg(hdev, "");
5596 if (!hci_dev_test_flag(hdev, HCI_MGMT))
5599 data = hci_find_remote_oob_data(hdev, &ev->bdaddr, BDADDR_BREDR);
5601 struct hci_cp_remote_oob_data_neg_reply cp;
5603 bacpy(&cp.bdaddr, &ev->bdaddr);
5604 hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_DATA_NEG_REPLY,
5609 if (bredr_sc_enabled(hdev)) {
5610 struct hci_cp_remote_oob_ext_data_reply cp;
5612 bacpy(&cp.bdaddr, &ev->bdaddr);
5613 if (hci_dev_test_flag(hdev, HCI_SC_ONLY)) {
5614 memset(cp.hash192, 0, sizeof(cp.hash192));
5615 memset(cp.rand192, 0, sizeof(cp.rand192));
5617 memcpy(cp.hash192, data->hash192, sizeof(cp.hash192));
5618 memcpy(cp.rand192, data->rand192, sizeof(cp.rand192));
5620 memcpy(cp.hash256, data->hash256, sizeof(cp.hash256));
5621 memcpy(cp.rand256, data->rand256, sizeof(cp.rand256));
5623 hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_EXT_DATA_REPLY,
5626 struct hci_cp_remote_oob_data_reply cp;
5628 bacpy(&cp.bdaddr, &ev->bdaddr);
5629 memcpy(cp.hash, data->hash192, sizeof(cp.hash));
5630 memcpy(cp.rand, data->rand192, sizeof(cp.rand));
5632 hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_DATA_REPLY,
5637 hci_dev_unlock(hdev);
5640 #if IS_ENABLED(CONFIG_BT_HS)
5641 static void hci_chan_selected_evt(struct hci_dev *hdev, void *data,
5642 struct sk_buff *skb)
5644 struct hci_ev_channel_selected *ev = data;
5645 struct hci_conn *hcon;
5647 bt_dev_dbg(hdev, "handle 0x%2.2x", ev->phy_handle);
5649 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
5653 amp_read_loc_assoc_final_data(hdev, hcon);
5656 static void hci_phy_link_complete_evt(struct hci_dev *hdev, void *data,
5657 struct sk_buff *skb)
5659 struct hci_ev_phy_link_complete *ev = data;
5660 struct hci_conn *hcon, *bredr_hcon;
5662 bt_dev_dbg(hdev, "handle 0x%2.2x status 0x%2.2x", ev->phy_handle,
5667 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
5679 bredr_hcon = hcon->amp_mgr->l2cap_conn->hcon;
5681 hcon->state = BT_CONNECTED;
5682 bacpy(&hcon->dst, &bredr_hcon->dst);
5684 hci_conn_hold(hcon);
5685 hcon->disc_timeout = HCI_DISCONN_TIMEOUT;
5686 hci_conn_drop(hcon);
5688 hci_debugfs_create_conn(hcon);
5689 hci_conn_add_sysfs(hcon);
5691 amp_physical_cfm(bredr_hcon, hcon);
5694 hci_dev_unlock(hdev);
5697 static void hci_loglink_complete_evt(struct hci_dev *hdev, void *data,
5698 struct sk_buff *skb)
5700 struct hci_ev_logical_link_complete *ev = data;
5701 struct hci_conn *hcon;
5702 struct hci_chan *hchan;
5703 struct amp_mgr *mgr;
5705 bt_dev_dbg(hdev, "log_handle 0x%4.4x phy_handle 0x%2.2x status 0x%2.2x",
5706 le16_to_cpu(ev->handle), ev->phy_handle, ev->status);
5708 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
5712 /* Create AMP hchan */
5713 hchan = hci_chan_create(hcon);
5717 hchan->handle = le16_to_cpu(ev->handle);
5720 BT_DBG("hcon %p mgr %p hchan %p", hcon, hcon->amp_mgr, hchan);
5722 mgr = hcon->amp_mgr;
5723 if (mgr && mgr->bredr_chan) {
5724 struct l2cap_chan *bredr_chan = mgr->bredr_chan;
5726 l2cap_chan_lock(bredr_chan);
5728 bredr_chan->conn->mtu = hdev->block_mtu;
5729 l2cap_logical_cfm(bredr_chan, hchan, 0);
5730 hci_conn_hold(hcon);
5732 l2cap_chan_unlock(bredr_chan);
5736 static void hci_disconn_loglink_complete_evt(struct hci_dev *hdev, void *data,
5737 struct sk_buff *skb)
5739 struct hci_ev_disconn_logical_link_complete *ev = data;
5740 struct hci_chan *hchan;
5742 bt_dev_dbg(hdev, "handle 0x%4.4x status 0x%2.2x",
5743 le16_to_cpu(ev->handle), ev->status);
5750 hchan = hci_chan_lookup_handle(hdev, le16_to_cpu(ev->handle));
5751 if (!hchan || !hchan->amp)
5754 amp_destroy_logical_link(hchan, ev->reason);
5757 hci_dev_unlock(hdev);
5760 static void hci_disconn_phylink_complete_evt(struct hci_dev *hdev, void *data,
5761 struct sk_buff *skb)
5763 struct hci_ev_disconn_phy_link_complete *ev = data;
5764 struct hci_conn *hcon;
5766 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
5773 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
5774 if (hcon && hcon->type == AMP_LINK) {
5775 hcon->state = BT_CLOSED;
5776 hci_disconn_cfm(hcon, ev->reason);
5780 hci_dev_unlock(hdev);
5784 static void le_conn_update_addr(struct hci_conn *conn, bdaddr_t *bdaddr,
5785 u8 bdaddr_type, bdaddr_t *local_rpa)
5788 conn->dst_type = bdaddr_type;
5789 conn->resp_addr_type = bdaddr_type;
5790 bacpy(&conn->resp_addr, bdaddr);
5792 /* Check if the controller has set a Local RPA then it must be
5793 * used instead or hdev->rpa.
5795 if (local_rpa && bacmp(local_rpa, BDADDR_ANY)) {
5796 conn->init_addr_type = ADDR_LE_DEV_RANDOM;
5797 bacpy(&conn->init_addr, local_rpa);
5798 } else if (hci_dev_test_flag(conn->hdev, HCI_PRIVACY)) {
5799 conn->init_addr_type = ADDR_LE_DEV_RANDOM;
5800 bacpy(&conn->init_addr, &conn->hdev->rpa);
5802 hci_copy_identity_address(conn->hdev, &conn->init_addr,
5803 &conn->init_addr_type);
5806 conn->resp_addr_type = conn->hdev->adv_addr_type;
5807 /* Check if the controller has set a Local RPA then it must be
5808 * used instead or hdev->rpa.
5810 if (local_rpa && bacmp(local_rpa, BDADDR_ANY)) {
5811 conn->resp_addr_type = ADDR_LE_DEV_RANDOM;
5812 bacpy(&conn->resp_addr, local_rpa);
5813 } else if (conn->hdev->adv_addr_type == ADDR_LE_DEV_RANDOM) {
5814 /* In case of ext adv, resp_addr will be updated in
5815 * Adv Terminated event.
5817 if (!ext_adv_capable(conn->hdev))
5818 bacpy(&conn->resp_addr,
5819 &conn->hdev->random_addr);
5821 bacpy(&conn->resp_addr, &conn->hdev->bdaddr);
5824 conn->init_addr_type = bdaddr_type;
5825 bacpy(&conn->init_addr, bdaddr);
5827 /* For incoming connections, set the default minimum
5828 * and maximum connection interval. They will be used
5829 * to check if the parameters are in range and if not
5830 * trigger the connection update procedure.
5832 conn->le_conn_min_interval = conn->hdev->le_conn_min_interval;
5833 conn->le_conn_max_interval = conn->hdev->le_conn_max_interval;
5837 static void le_conn_complete_evt(struct hci_dev *hdev, u8 status,
5838 bdaddr_t *bdaddr, u8 bdaddr_type,
5839 bdaddr_t *local_rpa, u8 role, u16 handle,
5840 u16 interval, u16 latency,
5841 u16 supervision_timeout)
5843 struct hci_conn_params *params;
5844 struct hci_conn *conn;
5845 struct smp_irk *irk;
5850 /* All controllers implicitly stop advertising in the event of a
5851 * connection, so ensure that the state bit is cleared.
5853 hci_dev_clear_flag(hdev, HCI_LE_ADV);
5855 conn = hci_conn_hash_lookup_ba(hdev, LE_LINK, bdaddr);
5857 /* In case of error status and there is no connection pending
5858 * just unlock as there is nothing to cleanup.
5863 conn = hci_conn_add(hdev, LE_LINK, bdaddr, role);
5865 bt_dev_err(hdev, "no memory for new connection");
5869 conn->dst_type = bdaddr_type;
5871 /* If we didn't have a hci_conn object previously
5872 * but we're in central role this must be something
5873 * initiated using an accept list. Since accept list based
5874 * connections are not "first class citizens" we don't
5875 * have full tracking of them. Therefore, we go ahead
5876 * with a "best effort" approach of determining the
5877 * initiator address based on the HCI_PRIVACY flag.
5880 conn->resp_addr_type = bdaddr_type;
5881 bacpy(&conn->resp_addr, bdaddr);
5882 if (hci_dev_test_flag(hdev, HCI_PRIVACY)) {
5883 conn->init_addr_type = ADDR_LE_DEV_RANDOM;
5884 bacpy(&conn->init_addr, &hdev->rpa);
5886 hci_copy_identity_address(hdev,
5888 &conn->init_addr_type);
5892 cancel_delayed_work(&conn->le_conn_timeout);
5895 /* The HCI_LE_Connection_Complete event is only sent once per connection.
5896 * Processing it more than once per connection can corrupt kernel memory.
5898 * As the connection handle is set here for the first time, it indicates
5899 * whether the connection is already set up.
5901 if (conn->handle != HCI_CONN_HANDLE_UNSET) {
5902 bt_dev_err(hdev, "Ignoring HCI_Connection_Complete for existing connection");
5906 le_conn_update_addr(conn, bdaddr, bdaddr_type, local_rpa);
5908 /* Lookup the identity address from the stored connection
5909 * address and address type.
5911 * When establishing connections to an identity address, the
5912 * connection procedure will store the resolvable random
5913 * address first. Now if it can be converted back into the
5914 * identity address, start using the identity address from
5917 irk = hci_get_irk(hdev, &conn->dst, conn->dst_type);
5919 bacpy(&conn->dst, &irk->bdaddr);
5920 conn->dst_type = irk->addr_type;
5923 conn->dst_type = ev_bdaddr_type(hdev, conn->dst_type, NULL);
5925 if (handle > HCI_CONN_HANDLE_MAX) {
5926 bt_dev_err(hdev, "Invalid handle: 0x%4.4x > 0x%4.4x", handle,
5927 HCI_CONN_HANDLE_MAX);
5928 status = HCI_ERROR_INVALID_PARAMETERS;
5931 /* All connection failure handling is taken care of by the
5932 * hci_conn_failed function which is triggered by the HCI
5933 * request completion callbacks used for connecting.
5938 /* Drop the connection if it has been aborted */
5939 if (test_bit(HCI_CONN_CANCEL, &conn->flags)) {
5940 hci_conn_drop(conn);
5944 if (conn->dst_type == ADDR_LE_DEV_PUBLIC)
5945 addr_type = BDADDR_LE_PUBLIC;
5947 addr_type = BDADDR_LE_RANDOM;
5949 /* Drop the connection if the device is blocked */
5950 if (hci_bdaddr_list_lookup(&hdev->reject_list, &conn->dst, addr_type)) {
5951 hci_conn_drop(conn);
5955 if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
5956 mgmt_device_connected(hdev, conn, NULL, 0);
5958 conn->sec_level = BT_SECURITY_LOW;
5959 conn->handle = handle;
5960 conn->state = BT_CONFIG;
5962 /* Store current advertising instance as connection advertising instance
5963 * when sotfware rotation is in use so it can be re-enabled when
5966 if (!ext_adv_capable(hdev))
5967 conn->adv_instance = hdev->cur_adv_instance;
5969 conn->le_conn_interval = interval;
5970 conn->le_conn_latency = latency;
5971 conn->le_supv_timeout = supervision_timeout;
5973 hci_debugfs_create_conn(conn);
5974 hci_conn_add_sysfs(conn);
5976 /* The remote features procedure is defined for central
5977 * role only. So only in case of an initiated connection
5978 * request the remote features.
5980 * If the local controller supports peripheral-initiated features
5981 * exchange, then requesting the remote features in peripheral
5982 * role is possible. Otherwise just transition into the
5983 * connected state without requesting the remote features.
5986 (hdev->le_features[0] & HCI_LE_PERIPHERAL_FEATURES)) {
5987 struct hci_cp_le_read_remote_features cp;
5989 cp.handle = __cpu_to_le16(conn->handle);
5991 hci_send_cmd(hdev, HCI_OP_LE_READ_REMOTE_FEATURES,
5994 hci_conn_hold(conn);
5996 conn->state = BT_CONNECTED;
5997 hci_connect_cfm(conn, status);
6000 params = hci_pend_le_action_lookup(&hdev->pend_le_conns, &conn->dst,
6003 list_del_init(¶ms->action);
6005 hci_conn_drop(params->conn);
6006 hci_conn_put(params->conn);
6007 params->conn = NULL;
6012 hci_update_passive_scan(hdev);
6013 hci_dev_unlock(hdev);
6016 static void hci_le_conn_complete_evt(struct hci_dev *hdev, void *data,
6017 struct sk_buff *skb)
6019 struct hci_ev_le_conn_complete *ev = data;
6021 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
6023 le_conn_complete_evt(hdev, ev->status, &ev->bdaddr, ev->bdaddr_type,
6024 NULL, ev->role, le16_to_cpu(ev->handle),
6025 le16_to_cpu(ev->interval),
6026 le16_to_cpu(ev->latency),
6027 le16_to_cpu(ev->supervision_timeout));
6030 static void hci_le_enh_conn_complete_evt(struct hci_dev *hdev, void *data,
6031 struct sk_buff *skb)
6033 struct hci_ev_le_enh_conn_complete *ev = data;
6035 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
6037 le_conn_complete_evt(hdev, ev->status, &ev->bdaddr, ev->bdaddr_type,
6038 &ev->local_rpa, ev->role, le16_to_cpu(ev->handle),
6039 le16_to_cpu(ev->interval),
6040 le16_to_cpu(ev->latency),
6041 le16_to_cpu(ev->supervision_timeout));
6044 static void hci_le_ext_adv_term_evt(struct hci_dev *hdev, void *data,
6045 struct sk_buff *skb)
6047 struct hci_evt_le_ext_adv_set_term *ev = data;
6048 struct hci_conn *conn;
6049 struct adv_info *adv, *n;
6051 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
6053 /* The Bluetooth Core 5.3 specification clearly states that this event
6054 * shall not be sent when the Host disables the advertising set. So in
6055 * case of HCI_ERROR_CANCELLED_BY_HOST, just ignore the event.
6057 * When the Host disables an advertising set, all cleanup is done via
6058 * its command callback and not needed to be duplicated here.
6060 if (ev->status == HCI_ERROR_CANCELLED_BY_HOST) {
6061 bt_dev_warn_ratelimited(hdev, "Unexpected advertising set terminated event");
6067 adv = hci_find_adv_instance(hdev, ev->handle);
6073 /* Remove advertising as it has been terminated */
6074 hci_remove_adv_instance(hdev, ev->handle);
6075 mgmt_advertising_removed(NULL, hdev, ev->handle);
6077 list_for_each_entry_safe(adv, n, &hdev->adv_instances, list) {
6082 /* We are no longer advertising, clear HCI_LE_ADV */
6083 hci_dev_clear_flag(hdev, HCI_LE_ADV);
6088 adv->enabled = false;
6090 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->conn_handle));
6092 /* Store handle in the connection so the correct advertising
6093 * instance can be re-enabled when disconnected.
6095 conn->adv_instance = ev->handle;
6097 if (hdev->adv_addr_type != ADDR_LE_DEV_RANDOM ||
6098 bacmp(&conn->resp_addr, BDADDR_ANY))
6102 bacpy(&conn->resp_addr, &hdev->random_addr);
6107 bacpy(&conn->resp_addr, &adv->random_addr);
6111 hci_dev_unlock(hdev);
6114 static void hci_le_conn_update_complete_evt(struct hci_dev *hdev, void *data,
6115 struct sk_buff *skb)
6117 struct hci_ev_le_conn_update_complete *ev = data;
6118 struct hci_conn *conn;
6120 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
6127 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
6129 conn->le_conn_interval = le16_to_cpu(ev->interval);
6130 conn->le_conn_latency = le16_to_cpu(ev->latency);
6131 conn->le_supv_timeout = le16_to_cpu(ev->supervision_timeout);
6134 hci_dev_unlock(hdev);
6137 /* This function requires the caller holds hdev->lock */
6138 static struct hci_conn *check_pending_le_conn(struct hci_dev *hdev,
6140 u8 addr_type, bool addr_resolved,
6143 struct hci_conn *conn;
6144 struct hci_conn_params *params;
6146 /* If the event is not connectable don't proceed further */
6147 if (adv_type != LE_ADV_IND && adv_type != LE_ADV_DIRECT_IND)
6150 /* Ignore if the device is blocked or hdev is suspended */
6151 if (hci_bdaddr_list_lookup(&hdev->reject_list, addr, addr_type) ||
6155 /* Most controller will fail if we try to create new connections
6156 * while we have an existing one in peripheral role.
6158 if (hdev->conn_hash.le_num_peripheral > 0 &&
6159 (!test_bit(HCI_QUIRK_VALID_LE_STATES, &hdev->quirks) ||
6160 !(hdev->le_states[3] & 0x10)))
6163 /* If we're not connectable only connect devices that we have in
6164 * our pend_le_conns list.
6166 params = hci_pend_le_action_lookup(&hdev->pend_le_conns, addr,
6171 if (!params->explicit_connect) {
6172 switch (params->auto_connect) {
6173 case HCI_AUTO_CONN_DIRECT:
6174 /* Only devices advertising with ADV_DIRECT_IND are
6175 * triggering a connection attempt. This is allowing
6176 * incoming connections from peripheral devices.
6178 if (adv_type != LE_ADV_DIRECT_IND)
6181 case HCI_AUTO_CONN_ALWAYS:
6182 /* Devices advertising with ADV_IND or ADV_DIRECT_IND
6183 * are triggering a connection attempt. This means
6184 * that incoming connections from peripheral device are
6185 * accepted and also outgoing connections to peripheral
6186 * devices are established when found.
6194 conn = hci_connect_le(hdev, addr, addr_type, addr_resolved,
6195 BT_SECURITY_LOW, hdev->def_le_autoconnect_timeout,
6197 if (!IS_ERR(conn)) {
6198 /* If HCI_AUTO_CONN_EXPLICIT is set, conn is already owned
6199 * by higher layer that tried to connect, if no then
6200 * store the pointer since we don't really have any
6201 * other owner of the object besides the params that
6202 * triggered it. This way we can abort the connection if
6203 * the parameters get removed and keep the reference
6204 * count consistent once the connection is established.
6207 if (!params->explicit_connect)
6208 params->conn = hci_conn_get(conn);
6213 switch (PTR_ERR(conn)) {
6215 /* If hci_connect() returns -EBUSY it means there is already
6216 * an LE connection attempt going on. Since controllers don't
6217 * support more than one connection attempt at the time, we
6218 * don't consider this an error case.
6222 BT_DBG("Failed to connect: err %ld", PTR_ERR(conn));
6229 static void process_adv_report(struct hci_dev *hdev, u8 type, bdaddr_t *bdaddr,
6230 u8 bdaddr_type, bdaddr_t *direct_addr,
6231 u8 direct_addr_type, s8 rssi, u8 *data, u8 len,
6232 bool ext_adv, bool ctl_time, u64 instant)
6234 struct discovery_state *d = &hdev->discovery;
6235 struct smp_irk *irk;
6236 struct hci_conn *conn;
6237 bool match, bdaddr_resolved;
6243 case LE_ADV_DIRECT_IND:
6244 case LE_ADV_SCAN_IND:
6245 case LE_ADV_NONCONN_IND:
6246 case LE_ADV_SCAN_RSP:
6249 bt_dev_err_ratelimited(hdev, "unknown advertising packet "
6250 "type: 0x%02x", type);
6254 if (!ext_adv && len > HCI_MAX_AD_LENGTH) {
6255 bt_dev_err_ratelimited(hdev, "legacy adv larger than 31 bytes");
6259 /* Find the end of the data in case the report contains padded zero
6260 * bytes at the end causing an invalid length value.
6262 * When data is NULL, len is 0 so there is no need for extra ptr
6263 * check as 'ptr < data + 0' is already false in such case.
6265 for (ptr = data; ptr < data + len && *ptr; ptr += *ptr + 1) {
6266 if (ptr + 1 + *ptr > data + len)
6270 /* Adjust for actual length. This handles the case when remote
6271 * device is advertising with incorrect data length.
6275 /* If the direct address is present, then this report is from
6276 * a LE Direct Advertising Report event. In that case it is
6277 * important to see if the address is matching the local
6278 * controller address.
6280 if (!hci_dev_test_flag(hdev, HCI_MESH) && direct_addr) {
6281 direct_addr_type = ev_bdaddr_type(hdev, direct_addr_type,
6284 /* Only resolvable random addresses are valid for these
6285 * kind of reports and others can be ignored.
6287 if (!hci_bdaddr_is_rpa(direct_addr, direct_addr_type))
6290 /* If the controller is not using resolvable random
6291 * addresses, then this report can be ignored.
6293 if (!hci_dev_test_flag(hdev, HCI_PRIVACY))
6296 /* If the local IRK of the controller does not match
6297 * with the resolvable random address provided, then
6298 * this report can be ignored.
6300 if (!smp_irk_matches(hdev, hdev->irk, direct_addr))
6304 /* Check if we need to convert to identity address */
6305 irk = hci_get_irk(hdev, bdaddr, bdaddr_type);
6307 bdaddr = &irk->bdaddr;
6308 bdaddr_type = irk->addr_type;
6311 bdaddr_type = ev_bdaddr_type(hdev, bdaddr_type, &bdaddr_resolved);
6313 /* Check if we have been requested to connect to this device.
6315 * direct_addr is set only for directed advertising reports (it is NULL
6316 * for advertising reports) and is already verified to be RPA above.
6318 conn = check_pending_le_conn(hdev, bdaddr, bdaddr_type, bdaddr_resolved,
6320 if (!ext_adv && conn && type == LE_ADV_IND && len <= HCI_MAX_AD_LENGTH) {
6321 /* Store report for later inclusion by
6322 * mgmt_device_connected
6324 memcpy(conn->le_adv_data, data, len);
6325 conn->le_adv_data_len = len;
6328 if (type == LE_ADV_NONCONN_IND || type == LE_ADV_SCAN_IND)
6329 flags = MGMT_DEV_FOUND_NOT_CONNECTABLE;
6333 /* All scan results should be sent up for Mesh systems */
6334 if (hci_dev_test_flag(hdev, HCI_MESH)) {
6335 mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL,
6336 rssi, flags, data, len, NULL, 0, instant);
6340 /* Passive scanning shouldn't trigger any device found events,
6341 * except for devices marked as CONN_REPORT for which we do send
6342 * device found events, or advertisement monitoring requested.
6344 if (hdev->le_scan_type == LE_SCAN_PASSIVE) {
6345 if (type == LE_ADV_DIRECT_IND)
6348 if (!hci_pend_le_action_lookup(&hdev->pend_le_reports,
6349 bdaddr, bdaddr_type) &&
6350 idr_is_empty(&hdev->adv_monitors_idr))
6353 mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL,
6354 rssi, flags, data, len, NULL, 0, 0);
6358 /* When receiving a scan response, then there is no way to
6359 * know if the remote device is connectable or not. However
6360 * since scan responses are merged with a previously seen
6361 * advertising report, the flags field from that report
6364 * In the unlikely case that a controller just sends a scan
6365 * response event that doesn't match the pending report, then
6366 * it is marked as a standalone SCAN_RSP.
6368 if (type == LE_ADV_SCAN_RSP)
6369 flags = MGMT_DEV_FOUND_SCAN_RSP;
6371 /* If there's nothing pending either store the data from this
6372 * event or send an immediate device found event if the data
6373 * should not be stored for later.
6375 if (!ext_adv && !has_pending_adv_report(hdev)) {
6376 /* If the report will trigger a SCAN_REQ store it for
6379 if (type == LE_ADV_IND || type == LE_ADV_SCAN_IND) {
6380 store_pending_adv_report(hdev, bdaddr, bdaddr_type,
6381 rssi, flags, data, len);
6385 mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL,
6386 rssi, flags, data, len, NULL, 0, 0);
6390 /* Check if the pending report is for the same device as the new one */
6391 match = (!bacmp(bdaddr, &d->last_adv_addr) &&
6392 bdaddr_type == d->last_adv_addr_type);
6394 /* If the pending data doesn't match this report or this isn't a
6395 * scan response (e.g. we got a duplicate ADV_IND) then force
6396 * sending of the pending data.
6398 if (type != LE_ADV_SCAN_RSP || !match) {
6399 /* Send out whatever is in the cache, but skip duplicates */
6401 mgmt_device_found(hdev, &d->last_adv_addr, LE_LINK,
6402 d->last_adv_addr_type, NULL,
6403 d->last_adv_rssi, d->last_adv_flags,
6405 d->last_adv_data_len, NULL, 0, 0);
6407 /* If the new report will trigger a SCAN_REQ store it for
6410 if (!ext_adv && (type == LE_ADV_IND ||
6411 type == LE_ADV_SCAN_IND)) {
6412 store_pending_adv_report(hdev, bdaddr, bdaddr_type,
6413 rssi, flags, data, len);
6417 /* The advertising reports cannot be merged, so clear
6418 * the pending report and send out a device found event.
6420 clear_pending_adv_report(hdev);
6421 mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL,
6422 rssi, flags, data, len, NULL, 0, 0);
6426 /* If we get here we've got a pending ADV_IND or ADV_SCAN_IND and
6427 * the new event is a SCAN_RSP. We can therefore proceed with
6428 * sending a merged device found event.
6430 mgmt_device_found(hdev, &d->last_adv_addr, LE_LINK,
6431 d->last_adv_addr_type, NULL, rssi, d->last_adv_flags,
6432 d->last_adv_data, d->last_adv_data_len, data, len, 0);
6433 clear_pending_adv_report(hdev);
6436 static void hci_le_adv_report_evt(struct hci_dev *hdev, void *data,
6437 struct sk_buff *skb)
6439 struct hci_ev_le_advertising_report *ev = data;
6440 u64 instant = jiffies;
6448 struct hci_ev_le_advertising_info *info;
6451 info = hci_le_ev_skb_pull(hdev, skb,
6452 HCI_EV_LE_ADVERTISING_REPORT,
6457 if (!hci_le_ev_skb_pull(hdev, skb, HCI_EV_LE_ADVERTISING_REPORT,
6461 if (info->length <= HCI_MAX_AD_LENGTH) {
6462 rssi = info->data[info->length];
6463 process_adv_report(hdev, info->type, &info->bdaddr,
6464 info->bdaddr_type, NULL, 0, rssi,
6465 info->data, info->length, false,
6468 bt_dev_err(hdev, "Dropping invalid advertising data");
6472 hci_dev_unlock(hdev);
6475 static u8 ext_evt_type_to_legacy(struct hci_dev *hdev, u16 evt_type)
6477 if (evt_type & LE_EXT_ADV_LEGACY_PDU) {
6479 case LE_LEGACY_ADV_IND:
6481 case LE_LEGACY_ADV_DIRECT_IND:
6482 return LE_ADV_DIRECT_IND;
6483 case LE_LEGACY_ADV_SCAN_IND:
6484 return LE_ADV_SCAN_IND;
6485 case LE_LEGACY_NONCONN_IND:
6486 return LE_ADV_NONCONN_IND;
6487 case LE_LEGACY_SCAN_RSP_ADV:
6488 case LE_LEGACY_SCAN_RSP_ADV_SCAN:
6489 return LE_ADV_SCAN_RSP;
6495 if (evt_type & LE_EXT_ADV_CONN_IND) {
6496 if (evt_type & LE_EXT_ADV_DIRECT_IND)
6497 return LE_ADV_DIRECT_IND;
6502 if (evt_type & LE_EXT_ADV_SCAN_RSP)
6503 return LE_ADV_SCAN_RSP;
6505 if (evt_type & LE_EXT_ADV_SCAN_IND)
6506 return LE_ADV_SCAN_IND;
6508 if (evt_type == LE_EXT_ADV_NON_CONN_IND ||
6509 evt_type & LE_EXT_ADV_DIRECT_IND)
6510 return LE_ADV_NONCONN_IND;
6513 bt_dev_err_ratelimited(hdev, "Unknown advertising packet type: 0x%02x",
6516 return LE_ADV_INVALID;
6519 static void hci_le_ext_adv_report_evt(struct hci_dev *hdev, void *data,
6520 struct sk_buff *skb)
6522 struct hci_ev_le_ext_adv_report *ev = data;
6523 u64 instant = jiffies;
6531 struct hci_ev_le_ext_adv_info *info;
6535 info = hci_le_ev_skb_pull(hdev, skb, HCI_EV_LE_EXT_ADV_REPORT,
6540 if (!hci_le_ev_skb_pull(hdev, skb, HCI_EV_LE_EXT_ADV_REPORT,
6544 evt_type = __le16_to_cpu(info->type);
6545 legacy_evt_type = ext_evt_type_to_legacy(hdev, evt_type);
6546 if (legacy_evt_type != LE_ADV_INVALID) {
6547 process_adv_report(hdev, legacy_evt_type, &info->bdaddr,
6548 info->bdaddr_type, NULL, 0,
6549 info->rssi, info->data, info->length,
6550 !(evt_type & LE_EXT_ADV_LEGACY_PDU),
6555 hci_dev_unlock(hdev);
6558 static int hci_le_pa_term_sync(struct hci_dev *hdev, __le16 handle)
6560 struct hci_cp_le_pa_term_sync cp;
6562 memset(&cp, 0, sizeof(cp));
6565 return hci_send_cmd(hdev, HCI_OP_LE_PA_TERM_SYNC, sizeof(cp), &cp);
6568 static void hci_le_pa_sync_estabilished_evt(struct hci_dev *hdev, void *data,
6569 struct sk_buff *skb)
6571 struct hci_ev_le_pa_sync_established *ev = data;
6572 int mask = hdev->link_mode;
6575 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
6582 hci_dev_clear_flag(hdev, HCI_PA_SYNC);
6584 mask |= hci_proto_connect_ind(hdev, &ev->bdaddr, ISO_LINK, &flags);
6585 if (!(mask & HCI_LM_ACCEPT))
6586 hci_le_pa_term_sync(hdev, ev->handle);
6588 hci_dev_unlock(hdev);
6591 static void hci_le_remote_feat_complete_evt(struct hci_dev *hdev, void *data,
6592 struct sk_buff *skb)
6594 struct hci_ev_le_remote_feat_complete *ev = data;
6595 struct hci_conn *conn;
6597 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
6601 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
6604 memcpy(conn->features[0], ev->features, 8);
6606 if (conn->state == BT_CONFIG) {
6609 /* If the local controller supports peripheral-initiated
6610 * features exchange, but the remote controller does
6611 * not, then it is possible that the error code 0x1a
6612 * for unsupported remote feature gets returned.
6614 * In this specific case, allow the connection to
6615 * transition into connected state and mark it as
6618 if (!conn->out && ev->status == 0x1a &&
6619 (hdev->le_features[0] & HCI_LE_PERIPHERAL_FEATURES))
6622 status = ev->status;
6624 conn->state = BT_CONNECTED;
6625 hci_connect_cfm(conn, status);
6626 hci_conn_drop(conn);
6630 hci_dev_unlock(hdev);
6633 static void hci_le_ltk_request_evt(struct hci_dev *hdev, void *data,
6634 struct sk_buff *skb)
6636 struct hci_ev_le_ltk_req *ev = data;
6637 struct hci_cp_le_ltk_reply cp;
6638 struct hci_cp_le_ltk_neg_reply neg;
6639 struct hci_conn *conn;
6640 struct smp_ltk *ltk;
6642 bt_dev_dbg(hdev, "handle 0x%4.4x", __le16_to_cpu(ev->handle));
6646 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
6650 ltk = hci_find_ltk(hdev, &conn->dst, conn->dst_type, conn->role);
6654 if (smp_ltk_is_sc(ltk)) {
6655 /* With SC both EDiv and Rand are set to zero */
6656 if (ev->ediv || ev->rand)
6659 /* For non-SC keys check that EDiv and Rand match */
6660 if (ev->ediv != ltk->ediv || ev->rand != ltk->rand)
6664 memcpy(cp.ltk, ltk->val, ltk->enc_size);
6665 memset(cp.ltk + ltk->enc_size, 0, sizeof(cp.ltk) - ltk->enc_size);
6666 cp.handle = cpu_to_le16(conn->handle);
6668 conn->pending_sec_level = smp_ltk_sec_level(ltk);
6670 conn->enc_key_size = ltk->enc_size;
6672 hci_send_cmd(hdev, HCI_OP_LE_LTK_REPLY, sizeof(cp), &cp);
6674 /* Ref. Bluetooth Core SPEC pages 1975 and 2004. STK is a
6675 * temporary key used to encrypt a connection following
6676 * pairing. It is used during the Encrypted Session Setup to
6677 * distribute the keys. Later, security can be re-established
6678 * using a distributed LTK.
6680 if (ltk->type == SMP_STK) {
6681 set_bit(HCI_CONN_STK_ENCRYPT, &conn->flags);
6682 list_del_rcu(<k->list);
6683 kfree_rcu(ltk, rcu);
6685 clear_bit(HCI_CONN_STK_ENCRYPT, &conn->flags);
6688 hci_dev_unlock(hdev);
6693 neg.handle = ev->handle;
6694 hci_send_cmd(hdev, HCI_OP_LE_LTK_NEG_REPLY, sizeof(neg), &neg);
6695 hci_dev_unlock(hdev);
6698 static void send_conn_param_neg_reply(struct hci_dev *hdev, u16 handle,
6701 struct hci_cp_le_conn_param_req_neg_reply cp;
6703 cp.handle = cpu_to_le16(handle);
6706 hci_send_cmd(hdev, HCI_OP_LE_CONN_PARAM_REQ_NEG_REPLY, sizeof(cp),
6710 static void hci_le_remote_conn_param_req_evt(struct hci_dev *hdev, void *data,
6711 struct sk_buff *skb)
6713 struct hci_ev_le_remote_conn_param_req *ev = data;
6714 struct hci_cp_le_conn_param_req_reply cp;
6715 struct hci_conn *hcon;
6716 u16 handle, min, max, latency, timeout;
6718 bt_dev_dbg(hdev, "handle 0x%4.4x", __le16_to_cpu(ev->handle));
6720 handle = le16_to_cpu(ev->handle);
6721 min = le16_to_cpu(ev->interval_min);
6722 max = le16_to_cpu(ev->interval_max);
6723 latency = le16_to_cpu(ev->latency);
6724 timeout = le16_to_cpu(ev->timeout);
6726 hcon = hci_conn_hash_lookup_handle(hdev, handle);
6727 if (!hcon || hcon->state != BT_CONNECTED)
6728 return send_conn_param_neg_reply(hdev, handle,
6729 HCI_ERROR_UNKNOWN_CONN_ID);
6731 if (hci_check_conn_params(min, max, latency, timeout))
6732 return send_conn_param_neg_reply(hdev, handle,
6733 HCI_ERROR_INVALID_LL_PARAMS);
6735 if (hcon->role == HCI_ROLE_MASTER) {
6736 struct hci_conn_params *params;
6741 params = hci_conn_params_lookup(hdev, &hcon->dst,
6744 params->conn_min_interval = min;
6745 params->conn_max_interval = max;
6746 params->conn_latency = latency;
6747 params->supervision_timeout = timeout;
6753 hci_dev_unlock(hdev);
6755 mgmt_new_conn_param(hdev, &hcon->dst, hcon->dst_type,
6756 store_hint, min, max, latency, timeout);
6759 cp.handle = ev->handle;
6760 cp.interval_min = ev->interval_min;
6761 cp.interval_max = ev->interval_max;
6762 cp.latency = ev->latency;
6763 cp.timeout = ev->timeout;
6767 hci_send_cmd(hdev, HCI_OP_LE_CONN_PARAM_REQ_REPLY, sizeof(cp), &cp);
6770 static void hci_le_direct_adv_report_evt(struct hci_dev *hdev, void *data,
6771 struct sk_buff *skb)
6773 struct hci_ev_le_direct_adv_report *ev = data;
6774 u64 instant = jiffies;
6777 if (!hci_le_ev_skb_pull(hdev, skb, HCI_EV_LE_DIRECT_ADV_REPORT,
6778 flex_array_size(ev, info, ev->num)))
6786 for (i = 0; i < ev->num; i++) {
6787 struct hci_ev_le_direct_adv_info *info = &ev->info[i];
6789 process_adv_report(hdev, info->type, &info->bdaddr,
6790 info->bdaddr_type, &info->direct_addr,
6791 info->direct_addr_type, info->rssi, NULL, 0,
6792 false, false, instant);
6795 hci_dev_unlock(hdev);
6798 static void hci_le_phy_update_evt(struct hci_dev *hdev, void *data,
6799 struct sk_buff *skb)
6801 struct hci_ev_le_phy_update_complete *ev = data;
6802 struct hci_conn *conn;
6804 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
6811 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
6815 conn->le_tx_phy = ev->tx_phy;
6816 conn->le_rx_phy = ev->rx_phy;
6819 hci_dev_unlock(hdev);
6822 static void hci_le_cis_estabilished_evt(struct hci_dev *hdev, void *data,
6823 struct sk_buff *skb)
6825 struct hci_evt_le_cis_established *ev = data;
6826 struct hci_conn *conn;
6827 u16 handle = __le16_to_cpu(ev->handle);
6829 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
6833 conn = hci_conn_hash_lookup_handle(hdev, handle);
6836 "Unable to find connection with handle 0x%4.4x",
6841 if (conn->type != ISO_LINK) {
6843 "Invalid connection link type handle 0x%4.4x",
6848 if (conn->role == HCI_ROLE_SLAVE) {
6851 memset(&interval, 0, sizeof(interval));
6853 memcpy(&interval, ev->c_latency, sizeof(ev->c_latency));
6854 conn->iso_qos.in.interval = le32_to_cpu(interval);
6855 memcpy(&interval, ev->p_latency, sizeof(ev->p_latency));
6856 conn->iso_qos.out.interval = le32_to_cpu(interval);
6857 conn->iso_qos.in.latency = le16_to_cpu(ev->interval);
6858 conn->iso_qos.out.latency = le16_to_cpu(ev->interval);
6859 conn->iso_qos.in.sdu = le16_to_cpu(ev->c_mtu);
6860 conn->iso_qos.out.sdu = le16_to_cpu(ev->p_mtu);
6861 conn->iso_qos.in.phy = ev->c_phy;
6862 conn->iso_qos.out.phy = ev->p_phy;
6866 conn->state = BT_CONNECTED;
6867 hci_debugfs_create_conn(conn);
6868 hci_conn_add_sysfs(conn);
6869 hci_iso_setup_path(conn);
6873 hci_connect_cfm(conn, ev->status);
6877 hci_dev_unlock(hdev);
6880 static void hci_le_reject_cis(struct hci_dev *hdev, __le16 handle)
6882 struct hci_cp_le_reject_cis cp;
6884 memset(&cp, 0, sizeof(cp));
6886 cp.reason = HCI_ERROR_REJ_BAD_ADDR;
6887 hci_send_cmd(hdev, HCI_OP_LE_REJECT_CIS, sizeof(cp), &cp);
6890 static void hci_le_accept_cis(struct hci_dev *hdev, __le16 handle)
6892 struct hci_cp_le_accept_cis cp;
6894 memset(&cp, 0, sizeof(cp));
6896 hci_send_cmd(hdev, HCI_OP_LE_ACCEPT_CIS, sizeof(cp), &cp);
6899 static void hci_le_cis_req_evt(struct hci_dev *hdev, void *data,
6900 struct sk_buff *skb)
6902 struct hci_evt_le_cis_req *ev = data;
6903 u16 acl_handle, cis_handle;
6904 struct hci_conn *acl, *cis;
6908 acl_handle = __le16_to_cpu(ev->acl_handle);
6909 cis_handle = __le16_to_cpu(ev->cis_handle);
6911 bt_dev_dbg(hdev, "acl 0x%4.4x handle 0x%4.4x cig 0x%2.2x cis 0x%2.2x",
6912 acl_handle, cis_handle, ev->cig_id, ev->cis_id);
6916 acl = hci_conn_hash_lookup_handle(hdev, acl_handle);
6920 mask = hci_proto_connect_ind(hdev, &acl->dst, ISO_LINK, &flags);
6921 if (!(mask & HCI_LM_ACCEPT)) {
6922 hci_le_reject_cis(hdev, ev->cis_handle);
6926 cis = hci_conn_hash_lookup_handle(hdev, cis_handle);
6928 cis = hci_conn_add(hdev, ISO_LINK, &acl->dst, HCI_ROLE_SLAVE);
6930 hci_le_reject_cis(hdev, ev->cis_handle);
6933 cis->handle = cis_handle;
6936 cis->iso_qos.cig = ev->cig_id;
6937 cis->iso_qos.cis = ev->cis_id;
6939 if (!(flags & HCI_PROTO_DEFER)) {
6940 hci_le_accept_cis(hdev, ev->cis_handle);
6942 cis->state = BT_CONNECT2;
6943 hci_connect_cfm(cis, 0);
6947 hci_dev_unlock(hdev);
6950 static void hci_le_create_big_complete_evt(struct hci_dev *hdev, void *data,
6951 struct sk_buff *skb)
6953 struct hci_evt_le_create_big_complete *ev = data;
6954 struct hci_conn *conn;
6956 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
6958 if (!hci_le_ev_skb_pull(hdev, skb, HCI_EVT_LE_CREATE_BIG_COMPLETE,
6959 flex_array_size(ev, bis_handle, ev->num_bis)))
6964 conn = hci_conn_hash_lookup_big(hdev, ev->handle);
6968 if (conn->type != ISO_LINK) {
6970 "Invalid connection link type handle 0x%2.2x",
6976 conn->handle = __le16_to_cpu(ev->bis_handle[0]);
6979 conn->state = BT_CONNECTED;
6980 hci_debugfs_create_conn(conn);
6981 hci_conn_add_sysfs(conn);
6982 hci_iso_setup_path(conn);
6986 hci_connect_cfm(conn, ev->status);
6990 hci_dev_unlock(hdev);
6993 static void hci_le_big_sync_established_evt(struct hci_dev *hdev, void *data,
6994 struct sk_buff *skb)
6996 struct hci_evt_le_big_sync_estabilished *ev = data;
6997 struct hci_conn *bis;
7000 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
7002 if (!hci_le_ev_skb_pull(hdev, skb, HCI_EVT_LE_BIG_SYNC_ESTABILISHED,
7003 flex_array_size(ev, bis, ev->num_bis)))
7011 for (i = 0; i < ev->num_bis; i++) {
7012 u16 handle = le16_to_cpu(ev->bis[i]);
7015 bis = hci_conn_hash_lookup_handle(hdev, handle);
7017 bis = hci_conn_add(hdev, ISO_LINK, BDADDR_ANY,
7021 bis->handle = handle;
7024 bis->iso_qos.big = ev->handle;
7025 memset(&interval, 0, sizeof(interval));
7026 memcpy(&interval, ev->latency, sizeof(ev->latency));
7027 bis->iso_qos.in.interval = le32_to_cpu(interval);
7028 /* Convert ISO Interval (1.25 ms slots) to latency (ms) */
7029 bis->iso_qos.in.latency = le16_to_cpu(ev->interval) * 125 / 100;
7030 bis->iso_qos.in.sdu = le16_to_cpu(ev->max_pdu);
7032 hci_iso_setup_path(bis);
7035 hci_dev_unlock(hdev);
7038 static void hci_le_big_info_adv_report_evt(struct hci_dev *hdev, void *data,
7039 struct sk_buff *skb)
7041 struct hci_evt_le_big_info_adv_report *ev = data;
7042 int mask = hdev->link_mode;
7045 bt_dev_dbg(hdev, "sync_handle 0x%4.4x", le16_to_cpu(ev->sync_handle));
7049 mask |= hci_proto_connect_ind(hdev, BDADDR_ANY, ISO_LINK, &flags);
7050 if (!(mask & HCI_LM_ACCEPT))
7051 hci_le_pa_term_sync(hdev, ev->sync_handle);
7053 hci_dev_unlock(hdev);
7056 #define HCI_LE_EV_VL(_op, _func, _min_len, _max_len) \
7059 .min_len = _min_len, \
7060 .max_len = _max_len, \
7063 #define HCI_LE_EV(_op, _func, _len) \
7064 HCI_LE_EV_VL(_op, _func, _len, _len)
7066 #define HCI_LE_EV_STATUS(_op, _func) \
7067 HCI_LE_EV(_op, _func, sizeof(struct hci_ev_status))
7069 /* Entries in this table shall have their position according to the subevent
7070 * opcode they handle so the use of the macros above is recommend since it does
7071 * attempt to initialize at its proper index using Designated Initializers that
7072 * way events without a callback function can be ommited.
7074 static const struct hci_le_ev {
7075 void (*func)(struct hci_dev *hdev, void *data, struct sk_buff *skb);
7078 } hci_le_ev_table[U8_MAX + 1] = {
7079 /* [0x01 = HCI_EV_LE_CONN_COMPLETE] */
7080 HCI_LE_EV(HCI_EV_LE_CONN_COMPLETE, hci_le_conn_complete_evt,
7081 sizeof(struct hci_ev_le_conn_complete)),
7082 /* [0x02 = HCI_EV_LE_ADVERTISING_REPORT] */
7083 HCI_LE_EV_VL(HCI_EV_LE_ADVERTISING_REPORT, hci_le_adv_report_evt,
7084 sizeof(struct hci_ev_le_advertising_report),
7085 HCI_MAX_EVENT_SIZE),
7086 /* [0x03 = HCI_EV_LE_CONN_UPDATE_COMPLETE] */
7087 HCI_LE_EV(HCI_EV_LE_CONN_UPDATE_COMPLETE,
7088 hci_le_conn_update_complete_evt,
7089 sizeof(struct hci_ev_le_conn_update_complete)),
7090 /* [0x04 = HCI_EV_LE_REMOTE_FEAT_COMPLETE] */
7091 HCI_LE_EV(HCI_EV_LE_REMOTE_FEAT_COMPLETE,
7092 hci_le_remote_feat_complete_evt,
7093 sizeof(struct hci_ev_le_remote_feat_complete)),
7094 /* [0x05 = HCI_EV_LE_LTK_REQ] */
7095 HCI_LE_EV(HCI_EV_LE_LTK_REQ, hci_le_ltk_request_evt,
7096 sizeof(struct hci_ev_le_ltk_req)),
7097 /* [0x06 = HCI_EV_LE_REMOTE_CONN_PARAM_REQ] */
7098 HCI_LE_EV(HCI_EV_LE_REMOTE_CONN_PARAM_REQ,
7099 hci_le_remote_conn_param_req_evt,
7100 sizeof(struct hci_ev_le_remote_conn_param_req)),
7101 /* [0x0a = HCI_EV_LE_ENHANCED_CONN_COMPLETE] */
7102 HCI_LE_EV(HCI_EV_LE_ENHANCED_CONN_COMPLETE,
7103 hci_le_enh_conn_complete_evt,
7104 sizeof(struct hci_ev_le_enh_conn_complete)),
7105 /* [0x0b = HCI_EV_LE_DIRECT_ADV_REPORT] */
7106 HCI_LE_EV_VL(HCI_EV_LE_DIRECT_ADV_REPORT, hci_le_direct_adv_report_evt,
7107 sizeof(struct hci_ev_le_direct_adv_report),
7108 HCI_MAX_EVENT_SIZE),
7109 /* [0x0c = HCI_EV_LE_PHY_UPDATE_COMPLETE] */
7110 HCI_LE_EV(HCI_EV_LE_PHY_UPDATE_COMPLETE, hci_le_phy_update_evt,
7111 sizeof(struct hci_ev_le_phy_update_complete)),
7112 /* [0x0d = HCI_EV_LE_EXT_ADV_REPORT] */
7113 HCI_LE_EV_VL(HCI_EV_LE_EXT_ADV_REPORT, hci_le_ext_adv_report_evt,
7114 sizeof(struct hci_ev_le_ext_adv_report),
7115 HCI_MAX_EVENT_SIZE),
7116 /* [0x0e = HCI_EV_LE_PA_SYNC_ESTABLISHED] */
7117 HCI_LE_EV(HCI_EV_LE_PA_SYNC_ESTABLISHED,
7118 hci_le_pa_sync_estabilished_evt,
7119 sizeof(struct hci_ev_le_pa_sync_established)),
7120 /* [0x12 = HCI_EV_LE_EXT_ADV_SET_TERM] */
7121 HCI_LE_EV(HCI_EV_LE_EXT_ADV_SET_TERM, hci_le_ext_adv_term_evt,
7122 sizeof(struct hci_evt_le_ext_adv_set_term)),
7123 /* [0x19 = HCI_EVT_LE_CIS_ESTABLISHED] */
7124 HCI_LE_EV(HCI_EVT_LE_CIS_ESTABLISHED, hci_le_cis_estabilished_evt,
7125 sizeof(struct hci_evt_le_cis_established)),
7126 /* [0x1a = HCI_EVT_LE_CIS_REQ] */
7127 HCI_LE_EV(HCI_EVT_LE_CIS_REQ, hci_le_cis_req_evt,
7128 sizeof(struct hci_evt_le_cis_req)),
7129 /* [0x1b = HCI_EVT_LE_CREATE_BIG_COMPLETE] */
7130 HCI_LE_EV_VL(HCI_EVT_LE_CREATE_BIG_COMPLETE,
7131 hci_le_create_big_complete_evt,
7132 sizeof(struct hci_evt_le_create_big_complete),
7133 HCI_MAX_EVENT_SIZE),
7134 /* [0x1d = HCI_EV_LE_BIG_SYNC_ESTABILISHED] */
7135 HCI_LE_EV_VL(HCI_EVT_LE_BIG_SYNC_ESTABILISHED,
7136 hci_le_big_sync_established_evt,
7137 sizeof(struct hci_evt_le_big_sync_estabilished),
7138 HCI_MAX_EVENT_SIZE),
7139 /* [0x22 = HCI_EVT_LE_BIG_INFO_ADV_REPORT] */
7140 HCI_LE_EV_VL(HCI_EVT_LE_BIG_INFO_ADV_REPORT,
7141 hci_le_big_info_adv_report_evt,
7142 sizeof(struct hci_evt_le_big_info_adv_report),
7143 HCI_MAX_EVENT_SIZE),
7146 static void hci_le_meta_evt(struct hci_dev *hdev, void *data,
7147 struct sk_buff *skb, u16 *opcode, u8 *status,
7148 hci_req_complete_t *req_complete,
7149 hci_req_complete_skb_t *req_complete_skb)
7151 struct hci_ev_le_meta *ev = data;
7152 const struct hci_le_ev *subev;
7154 bt_dev_dbg(hdev, "subevent 0x%2.2x", ev->subevent);
7156 /* Only match event if command OGF is for LE */
7157 if (hdev->sent_cmd &&
7158 hci_opcode_ogf(hci_skb_opcode(hdev->sent_cmd)) == 0x08 &&
7159 hci_skb_event(hdev->sent_cmd) == ev->subevent) {
7160 *opcode = hci_skb_opcode(hdev->sent_cmd);
7161 hci_req_cmd_complete(hdev, *opcode, 0x00, req_complete,
7165 subev = &hci_le_ev_table[ev->subevent];
7169 if (skb->len < subev->min_len) {
7170 bt_dev_err(hdev, "unexpected subevent 0x%2.2x length: %u < %u",
7171 ev->subevent, skb->len, subev->min_len);
7175 /* Just warn if the length is over max_len size it still be
7176 * possible to partially parse the event so leave to callback to
7177 * decide if that is acceptable.
7179 if (skb->len > subev->max_len)
7180 bt_dev_warn(hdev, "unexpected subevent 0x%2.2x length: %u > %u",
7181 ev->subevent, skb->len, subev->max_len);
7182 data = hci_le_ev_skb_pull(hdev, skb, ev->subevent, subev->min_len);
7186 subev->func(hdev, data, skb);
7189 static bool hci_get_cmd_complete(struct hci_dev *hdev, u16 opcode,
7190 u8 event, struct sk_buff *skb)
7192 struct hci_ev_cmd_complete *ev;
7193 struct hci_event_hdr *hdr;
7198 hdr = hci_ev_skb_pull(hdev, skb, event, sizeof(*hdr));
7203 if (hdr->evt != event)
7208 /* Check if request ended in Command Status - no way to retrieve
7209 * any extra parameters in this case.
7211 if (hdr->evt == HCI_EV_CMD_STATUS)
7214 if (hdr->evt != HCI_EV_CMD_COMPLETE) {
7215 bt_dev_err(hdev, "last event is not cmd complete (0x%2.2x)",
7220 ev = hci_cc_skb_pull(hdev, skb, opcode, sizeof(*ev));
7224 if (opcode != __le16_to_cpu(ev->opcode)) {
7225 BT_DBG("opcode doesn't match (0x%2.2x != 0x%2.2x)", opcode,
7226 __le16_to_cpu(ev->opcode));
7233 static void hci_store_wake_reason(struct hci_dev *hdev, u8 event,
7234 struct sk_buff *skb)
7236 struct hci_ev_le_advertising_info *adv;
7237 struct hci_ev_le_direct_adv_info *direct_adv;
7238 struct hci_ev_le_ext_adv_info *ext_adv;
7239 const struct hci_ev_conn_complete *conn_complete = (void *)skb->data;
7240 const struct hci_ev_conn_request *conn_request = (void *)skb->data;
7244 /* If we are currently suspended and this is the first BT event seen,
7245 * save the wake reason associated with the event.
7247 if (!hdev->suspended || hdev->wake_reason)
7250 /* Default to remote wake. Values for wake_reason are documented in the
7251 * Bluez mgmt api docs.
7253 hdev->wake_reason = MGMT_WAKE_REASON_REMOTE_WAKE;
7255 /* Once configured for remote wakeup, we should only wake up for
7256 * reconnections. It's useful to see which device is waking us up so
7257 * keep track of the bdaddr of the connection event that woke us up.
7259 if (event == HCI_EV_CONN_REQUEST) {
7260 bacpy(&hdev->wake_addr, &conn_complete->bdaddr);
7261 hdev->wake_addr_type = BDADDR_BREDR;
7262 } else if (event == HCI_EV_CONN_COMPLETE) {
7263 bacpy(&hdev->wake_addr, &conn_request->bdaddr);
7264 hdev->wake_addr_type = BDADDR_BREDR;
7265 } else if (event == HCI_EV_LE_META) {
7266 struct hci_ev_le_meta *le_ev = (void *)skb->data;
7267 u8 subevent = le_ev->subevent;
7268 u8 *ptr = &skb->data[sizeof(*le_ev)];
7269 u8 num_reports = *ptr;
7271 if ((subevent == HCI_EV_LE_ADVERTISING_REPORT ||
7272 subevent == HCI_EV_LE_DIRECT_ADV_REPORT ||
7273 subevent == HCI_EV_LE_EXT_ADV_REPORT) &&
7275 adv = (void *)(ptr + 1);
7276 direct_adv = (void *)(ptr + 1);
7277 ext_adv = (void *)(ptr + 1);
7280 case HCI_EV_LE_ADVERTISING_REPORT:
7281 bacpy(&hdev->wake_addr, &adv->bdaddr);
7282 hdev->wake_addr_type = adv->bdaddr_type;
7284 case HCI_EV_LE_DIRECT_ADV_REPORT:
7285 bacpy(&hdev->wake_addr, &direct_adv->bdaddr);
7286 hdev->wake_addr_type = direct_adv->bdaddr_type;
7288 case HCI_EV_LE_EXT_ADV_REPORT:
7289 bacpy(&hdev->wake_addr, &ext_adv->bdaddr);
7290 hdev->wake_addr_type = ext_adv->bdaddr_type;
7295 hdev->wake_reason = MGMT_WAKE_REASON_UNEXPECTED;
7299 hci_dev_unlock(hdev);
7302 #define HCI_EV_VL(_op, _func, _min_len, _max_len) \
7306 .min_len = _min_len, \
7307 .max_len = _max_len, \
7310 #define HCI_EV(_op, _func, _len) \
7311 HCI_EV_VL(_op, _func, _len, _len)
7313 #define HCI_EV_STATUS(_op, _func) \
7314 HCI_EV(_op, _func, sizeof(struct hci_ev_status))
7316 #define HCI_EV_REQ_VL(_op, _func, _min_len, _max_len) \
7319 .func_req = _func, \
7320 .min_len = _min_len, \
7321 .max_len = _max_len, \
7324 #define HCI_EV_REQ(_op, _func, _len) \
7325 HCI_EV_REQ_VL(_op, _func, _len, _len)
7327 /* Entries in this table shall have their position according to the event opcode
7328 * they handle so the use of the macros above is recommend since it does attempt
7329 * to initialize at its proper index using Designated Initializers that way
7330 * events without a callback function don't have entered.
7332 static const struct hci_ev {
7335 void (*func)(struct hci_dev *hdev, void *data,
7336 struct sk_buff *skb);
7337 void (*func_req)(struct hci_dev *hdev, void *data,
7338 struct sk_buff *skb, u16 *opcode, u8 *status,
7339 hci_req_complete_t *req_complete,
7340 hci_req_complete_skb_t *req_complete_skb);
7344 } hci_ev_table[U8_MAX + 1] = {
7345 /* [0x01 = HCI_EV_INQUIRY_COMPLETE] */
7346 HCI_EV_STATUS(HCI_EV_INQUIRY_COMPLETE, hci_inquiry_complete_evt),
7347 /* [0x02 = HCI_EV_INQUIRY_RESULT] */
7348 HCI_EV_VL(HCI_EV_INQUIRY_RESULT, hci_inquiry_result_evt,
7349 sizeof(struct hci_ev_inquiry_result), HCI_MAX_EVENT_SIZE),
7350 /* [0x03 = HCI_EV_CONN_COMPLETE] */
7351 HCI_EV(HCI_EV_CONN_COMPLETE, hci_conn_complete_evt,
7352 sizeof(struct hci_ev_conn_complete)),
7353 /* [0x04 = HCI_EV_CONN_REQUEST] */
7354 HCI_EV(HCI_EV_CONN_REQUEST, hci_conn_request_evt,
7355 sizeof(struct hci_ev_conn_request)),
7356 /* [0x05 = HCI_EV_DISCONN_COMPLETE] */
7357 HCI_EV(HCI_EV_DISCONN_COMPLETE, hci_disconn_complete_evt,
7358 sizeof(struct hci_ev_disconn_complete)),
7359 /* [0x06 = HCI_EV_AUTH_COMPLETE] */
7360 HCI_EV(HCI_EV_AUTH_COMPLETE, hci_auth_complete_evt,
7361 sizeof(struct hci_ev_auth_complete)),
7362 /* [0x07 = HCI_EV_REMOTE_NAME] */
7363 HCI_EV(HCI_EV_REMOTE_NAME, hci_remote_name_evt,
7364 sizeof(struct hci_ev_remote_name)),
7365 /* [0x08 = HCI_EV_ENCRYPT_CHANGE] */
7366 HCI_EV(HCI_EV_ENCRYPT_CHANGE, hci_encrypt_change_evt,
7367 sizeof(struct hci_ev_encrypt_change)),
7368 /* [0x09 = HCI_EV_CHANGE_LINK_KEY_COMPLETE] */
7369 HCI_EV(HCI_EV_CHANGE_LINK_KEY_COMPLETE,
7370 hci_change_link_key_complete_evt,
7371 sizeof(struct hci_ev_change_link_key_complete)),
7372 /* [0x0b = HCI_EV_REMOTE_FEATURES] */
7373 HCI_EV(HCI_EV_REMOTE_FEATURES, hci_remote_features_evt,
7374 sizeof(struct hci_ev_remote_features)),
7375 /* [0x0e = HCI_EV_CMD_COMPLETE] */
7376 HCI_EV_REQ_VL(HCI_EV_CMD_COMPLETE, hci_cmd_complete_evt,
7377 sizeof(struct hci_ev_cmd_complete), HCI_MAX_EVENT_SIZE),
7378 /* [0x0f = HCI_EV_CMD_STATUS] */
7379 HCI_EV_REQ(HCI_EV_CMD_STATUS, hci_cmd_status_evt,
7380 sizeof(struct hci_ev_cmd_status)),
7381 /* [0x10 = HCI_EV_CMD_STATUS] */
7382 HCI_EV(HCI_EV_HARDWARE_ERROR, hci_hardware_error_evt,
7383 sizeof(struct hci_ev_hardware_error)),
7384 /* [0x12 = HCI_EV_ROLE_CHANGE] */
7385 HCI_EV(HCI_EV_ROLE_CHANGE, hci_role_change_evt,
7386 sizeof(struct hci_ev_role_change)),
7387 /* [0x13 = HCI_EV_NUM_COMP_PKTS] */
7388 HCI_EV_VL(HCI_EV_NUM_COMP_PKTS, hci_num_comp_pkts_evt,
7389 sizeof(struct hci_ev_num_comp_pkts), HCI_MAX_EVENT_SIZE),
7390 /* [0x14 = HCI_EV_MODE_CHANGE] */
7391 HCI_EV(HCI_EV_MODE_CHANGE, hci_mode_change_evt,
7392 sizeof(struct hci_ev_mode_change)),
7393 /* [0x16 = HCI_EV_PIN_CODE_REQ] */
7394 HCI_EV(HCI_EV_PIN_CODE_REQ, hci_pin_code_request_evt,
7395 sizeof(struct hci_ev_pin_code_req)),
7396 /* [0x17 = HCI_EV_LINK_KEY_REQ] */
7397 HCI_EV(HCI_EV_LINK_KEY_REQ, hci_link_key_request_evt,
7398 sizeof(struct hci_ev_link_key_req)),
7399 /* [0x18 = HCI_EV_LINK_KEY_NOTIFY] */
7400 HCI_EV(HCI_EV_LINK_KEY_NOTIFY, hci_link_key_notify_evt,
7401 sizeof(struct hci_ev_link_key_notify)),
7402 /* [0x1c = HCI_EV_CLOCK_OFFSET] */
7403 HCI_EV(HCI_EV_CLOCK_OFFSET, hci_clock_offset_evt,
7404 sizeof(struct hci_ev_clock_offset)),
7405 /* [0x1d = HCI_EV_PKT_TYPE_CHANGE] */
7406 HCI_EV(HCI_EV_PKT_TYPE_CHANGE, hci_pkt_type_change_evt,
7407 sizeof(struct hci_ev_pkt_type_change)),
7408 /* [0x20 = HCI_EV_PSCAN_REP_MODE] */
7409 HCI_EV(HCI_EV_PSCAN_REP_MODE, hci_pscan_rep_mode_evt,
7410 sizeof(struct hci_ev_pscan_rep_mode)),
7411 /* [0x22 = HCI_EV_INQUIRY_RESULT_WITH_RSSI] */
7412 HCI_EV_VL(HCI_EV_INQUIRY_RESULT_WITH_RSSI,
7413 hci_inquiry_result_with_rssi_evt,
7414 sizeof(struct hci_ev_inquiry_result_rssi),
7415 HCI_MAX_EVENT_SIZE),
7416 /* [0x23 = HCI_EV_REMOTE_EXT_FEATURES] */
7417 HCI_EV(HCI_EV_REMOTE_EXT_FEATURES, hci_remote_ext_features_evt,
7418 sizeof(struct hci_ev_remote_ext_features)),
7419 /* [0x2c = HCI_EV_SYNC_CONN_COMPLETE] */
7420 HCI_EV(HCI_EV_SYNC_CONN_COMPLETE, hci_sync_conn_complete_evt,
7421 sizeof(struct hci_ev_sync_conn_complete)),
7422 /* [0x2d = HCI_EV_EXTENDED_INQUIRY_RESULT] */
7423 HCI_EV_VL(HCI_EV_EXTENDED_INQUIRY_RESULT,
7424 hci_extended_inquiry_result_evt,
7425 sizeof(struct hci_ev_ext_inquiry_result), HCI_MAX_EVENT_SIZE),
7426 /* [0x30 = HCI_EV_KEY_REFRESH_COMPLETE] */
7427 HCI_EV(HCI_EV_KEY_REFRESH_COMPLETE, hci_key_refresh_complete_evt,
7428 sizeof(struct hci_ev_key_refresh_complete)),
7429 /* [0x31 = HCI_EV_IO_CAPA_REQUEST] */
7430 HCI_EV(HCI_EV_IO_CAPA_REQUEST, hci_io_capa_request_evt,
7431 sizeof(struct hci_ev_io_capa_request)),
7432 /* [0x32 = HCI_EV_IO_CAPA_REPLY] */
7433 HCI_EV(HCI_EV_IO_CAPA_REPLY, hci_io_capa_reply_evt,
7434 sizeof(struct hci_ev_io_capa_reply)),
7435 /* [0x33 = HCI_EV_USER_CONFIRM_REQUEST] */
7436 HCI_EV(HCI_EV_USER_CONFIRM_REQUEST, hci_user_confirm_request_evt,
7437 sizeof(struct hci_ev_user_confirm_req)),
7438 /* [0x34 = HCI_EV_USER_PASSKEY_REQUEST] */
7439 HCI_EV(HCI_EV_USER_PASSKEY_REQUEST, hci_user_passkey_request_evt,
7440 sizeof(struct hci_ev_user_passkey_req)),
7441 /* [0x35 = HCI_EV_REMOTE_OOB_DATA_REQUEST] */
7442 HCI_EV(HCI_EV_REMOTE_OOB_DATA_REQUEST, hci_remote_oob_data_request_evt,
7443 sizeof(struct hci_ev_remote_oob_data_request)),
7444 /* [0x36 = HCI_EV_SIMPLE_PAIR_COMPLETE] */
7445 HCI_EV(HCI_EV_SIMPLE_PAIR_COMPLETE, hci_simple_pair_complete_evt,
7446 sizeof(struct hci_ev_simple_pair_complete)),
7447 /* [0x3b = HCI_EV_USER_PASSKEY_NOTIFY] */
7448 HCI_EV(HCI_EV_USER_PASSKEY_NOTIFY, hci_user_passkey_notify_evt,
7449 sizeof(struct hci_ev_user_passkey_notify)),
7450 /* [0x3c = HCI_EV_KEYPRESS_NOTIFY] */
7451 HCI_EV(HCI_EV_KEYPRESS_NOTIFY, hci_keypress_notify_evt,
7452 sizeof(struct hci_ev_keypress_notify)),
7453 /* [0x3d = HCI_EV_REMOTE_HOST_FEATURES] */
7454 HCI_EV(HCI_EV_REMOTE_HOST_FEATURES, hci_remote_host_features_evt,
7455 sizeof(struct hci_ev_remote_host_features)),
7456 /* [0x3e = HCI_EV_LE_META] */
7457 HCI_EV_REQ_VL(HCI_EV_LE_META, hci_le_meta_evt,
7458 sizeof(struct hci_ev_le_meta), HCI_MAX_EVENT_SIZE),
7459 #if IS_ENABLED(CONFIG_BT_HS)
7460 /* [0x40 = HCI_EV_PHY_LINK_COMPLETE] */
7461 HCI_EV(HCI_EV_PHY_LINK_COMPLETE, hci_phy_link_complete_evt,
7462 sizeof(struct hci_ev_phy_link_complete)),
7463 /* [0x41 = HCI_EV_CHANNEL_SELECTED] */
7464 HCI_EV(HCI_EV_CHANNEL_SELECTED, hci_chan_selected_evt,
7465 sizeof(struct hci_ev_channel_selected)),
7466 /* [0x42 = HCI_EV_DISCONN_PHY_LINK_COMPLETE] */
7467 HCI_EV(HCI_EV_DISCONN_LOGICAL_LINK_COMPLETE,
7468 hci_disconn_loglink_complete_evt,
7469 sizeof(struct hci_ev_disconn_logical_link_complete)),
7470 /* [0x45 = HCI_EV_LOGICAL_LINK_COMPLETE] */
7471 HCI_EV(HCI_EV_LOGICAL_LINK_COMPLETE, hci_loglink_complete_evt,
7472 sizeof(struct hci_ev_logical_link_complete)),
7473 /* [0x46 = HCI_EV_DISCONN_LOGICAL_LINK_COMPLETE] */
7474 HCI_EV(HCI_EV_DISCONN_PHY_LINK_COMPLETE,
7475 hci_disconn_phylink_complete_evt,
7476 sizeof(struct hci_ev_disconn_phy_link_complete)),
7478 /* [0x48 = HCI_EV_NUM_COMP_BLOCKS] */
7479 HCI_EV(HCI_EV_NUM_COMP_BLOCKS, hci_num_comp_blocks_evt,
7480 sizeof(struct hci_ev_num_comp_blocks)),
7481 /* [0xff = HCI_EV_VENDOR] */
7482 HCI_EV_VL(HCI_EV_VENDOR, msft_vendor_evt, 0, HCI_MAX_EVENT_SIZE),
7485 static void hci_event_func(struct hci_dev *hdev, u8 event, struct sk_buff *skb,
7486 u16 *opcode, u8 *status,
7487 hci_req_complete_t *req_complete,
7488 hci_req_complete_skb_t *req_complete_skb)
7490 const struct hci_ev *ev = &hci_ev_table[event];
7496 if (skb->len < ev->min_len) {
7497 bt_dev_err(hdev, "unexpected event 0x%2.2x length: %u < %u",
7498 event, skb->len, ev->min_len);
7502 /* Just warn if the length is over max_len size it still be
7503 * possible to partially parse the event so leave to callback to
7504 * decide if that is acceptable.
7506 if (skb->len > ev->max_len)
7507 bt_dev_warn_ratelimited(hdev,
7508 "unexpected event 0x%2.2x length: %u > %u",
7509 event, skb->len, ev->max_len);
7511 data = hci_ev_skb_pull(hdev, skb, event, ev->min_len);
7516 ev->func_req(hdev, data, skb, opcode, status, req_complete,
7519 ev->func(hdev, data, skb);
7522 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb)
7524 struct hci_event_hdr *hdr = (void *) skb->data;
7525 hci_req_complete_t req_complete = NULL;
7526 hci_req_complete_skb_t req_complete_skb = NULL;
7527 struct sk_buff *orig_skb = NULL;
7528 u8 status = 0, event, req_evt = 0;
7529 u16 opcode = HCI_OP_NOP;
7531 if (skb->len < sizeof(*hdr)) {
7532 bt_dev_err(hdev, "Malformed HCI Event");
7536 kfree_skb(hdev->recv_event);
7537 hdev->recv_event = skb_clone(skb, GFP_KERNEL);
7541 bt_dev_warn(hdev, "Received unexpected HCI Event 0x%2.2x",
7546 /* Only match event if command OGF is not for LE */
7547 if (hdev->sent_cmd &&
7548 hci_opcode_ogf(hci_skb_opcode(hdev->sent_cmd)) != 0x08 &&
7549 hci_skb_event(hdev->sent_cmd) == event) {
7550 hci_req_cmd_complete(hdev, hci_skb_opcode(hdev->sent_cmd),
7551 status, &req_complete, &req_complete_skb);
7555 /* If it looks like we might end up having to call
7556 * req_complete_skb, store a pristine copy of the skb since the
7557 * various handlers may modify the original one through
7558 * skb_pull() calls, etc.
7560 if (req_complete_skb || event == HCI_EV_CMD_STATUS ||
7561 event == HCI_EV_CMD_COMPLETE)
7562 orig_skb = skb_clone(skb, GFP_KERNEL);
7564 skb_pull(skb, HCI_EVENT_HDR_SIZE);
7566 /* Store wake reason if we're suspended */
7567 hci_store_wake_reason(hdev, event, skb);
7569 bt_dev_dbg(hdev, "event 0x%2.2x", event);
7571 hci_event_func(hdev, event, skb, &opcode, &status, &req_complete,
7575 req_complete(hdev, status, opcode);
7576 } else if (req_complete_skb) {
7577 if (!hci_get_cmd_complete(hdev, opcode, req_evt, orig_skb)) {
7578 kfree_skb(orig_skb);
7581 req_complete_skb(hdev, status, opcode, orig_skb);
7585 kfree_skb(orig_skb);
7587 hdev->stat.evt_rx++;