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 hdev->max_page = rp->max_page;
887 if (rp->page < HCI_MAX_PAGES)
888 memcpy(hdev->features[rp->page], rp->features, 8);
893 static u8 hci_cc_read_flow_control_mode(struct hci_dev *hdev, void *data,
896 struct hci_rp_read_flow_control_mode *rp = data;
898 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
903 hdev->flow_ctl_mode = rp->mode;
908 static u8 hci_cc_read_buffer_size(struct hci_dev *hdev, void *data,
911 struct hci_rp_read_buffer_size *rp = data;
913 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
918 hdev->acl_mtu = __le16_to_cpu(rp->acl_mtu);
919 hdev->sco_mtu = rp->sco_mtu;
920 hdev->acl_pkts = __le16_to_cpu(rp->acl_max_pkt);
921 hdev->sco_pkts = __le16_to_cpu(rp->sco_max_pkt);
923 if (test_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks)) {
928 hdev->acl_cnt = hdev->acl_pkts;
929 hdev->sco_cnt = hdev->sco_pkts;
931 BT_DBG("%s acl mtu %d:%d sco mtu %d:%d", hdev->name, hdev->acl_mtu,
932 hdev->acl_pkts, hdev->sco_mtu, hdev->sco_pkts);
937 static u8 hci_cc_read_bd_addr(struct hci_dev *hdev, void *data,
940 struct hci_rp_read_bd_addr *rp = data;
942 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
947 if (test_bit(HCI_INIT, &hdev->flags))
948 bacpy(&hdev->bdaddr, &rp->bdaddr);
950 if (hci_dev_test_flag(hdev, HCI_SETUP))
951 bacpy(&hdev->setup_addr, &rp->bdaddr);
956 static u8 hci_cc_read_local_pairing_opts(struct hci_dev *hdev, void *data,
959 struct hci_rp_read_local_pairing_opts *rp = data;
961 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
966 if (hci_dev_test_flag(hdev, HCI_SETUP) ||
967 hci_dev_test_flag(hdev, HCI_CONFIG)) {
968 hdev->pairing_opts = rp->pairing_opts;
969 hdev->max_enc_key_size = rp->max_key_size;
975 static u8 hci_cc_read_page_scan_activity(struct hci_dev *hdev, void *data,
978 struct hci_rp_read_page_scan_activity *rp = data;
980 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
985 if (test_bit(HCI_INIT, &hdev->flags)) {
986 hdev->page_scan_interval = __le16_to_cpu(rp->interval);
987 hdev->page_scan_window = __le16_to_cpu(rp->window);
993 static u8 hci_cc_write_page_scan_activity(struct hci_dev *hdev, void *data,
996 struct hci_ev_status *rp = data;
997 struct hci_cp_write_page_scan_activity *sent;
999 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1004 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_PAGE_SCAN_ACTIVITY);
1008 hdev->page_scan_interval = __le16_to_cpu(sent->interval);
1009 hdev->page_scan_window = __le16_to_cpu(sent->window);
1014 static u8 hci_cc_read_page_scan_type(struct hci_dev *hdev, void *data,
1015 struct sk_buff *skb)
1017 struct hci_rp_read_page_scan_type *rp = data;
1019 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1024 if (test_bit(HCI_INIT, &hdev->flags))
1025 hdev->page_scan_type = rp->type;
1030 static u8 hci_cc_write_page_scan_type(struct hci_dev *hdev, void *data,
1031 struct sk_buff *skb)
1033 struct hci_ev_status *rp = data;
1036 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1041 type = hci_sent_cmd_data(hdev, HCI_OP_WRITE_PAGE_SCAN_TYPE);
1043 hdev->page_scan_type = *type;
1048 static u8 hci_cc_read_data_block_size(struct hci_dev *hdev, void *data,
1049 struct sk_buff *skb)
1051 struct hci_rp_read_data_block_size *rp = data;
1053 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1058 hdev->block_mtu = __le16_to_cpu(rp->max_acl_len);
1059 hdev->block_len = __le16_to_cpu(rp->block_len);
1060 hdev->num_blocks = __le16_to_cpu(rp->num_blocks);
1062 hdev->block_cnt = hdev->num_blocks;
1064 BT_DBG("%s blk mtu %d cnt %d len %d", hdev->name, hdev->block_mtu,
1065 hdev->block_cnt, hdev->block_len);
1070 static u8 hci_cc_read_clock(struct hci_dev *hdev, void *data,
1071 struct sk_buff *skb)
1073 struct hci_rp_read_clock *rp = data;
1074 struct hci_cp_read_clock *cp;
1075 struct hci_conn *conn;
1077 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1084 cp = hci_sent_cmd_data(hdev, HCI_OP_READ_CLOCK);
1088 if (cp->which == 0x00) {
1089 hdev->clock = le32_to_cpu(rp->clock);
1093 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
1095 conn->clock = le32_to_cpu(rp->clock);
1096 conn->clock_accuracy = le16_to_cpu(rp->accuracy);
1100 hci_dev_unlock(hdev);
1104 static u8 hci_cc_read_local_amp_info(struct hci_dev *hdev, void *data,
1105 struct sk_buff *skb)
1107 struct hci_rp_read_local_amp_info *rp = data;
1109 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1114 hdev->amp_status = rp->amp_status;
1115 hdev->amp_total_bw = __le32_to_cpu(rp->total_bw);
1116 hdev->amp_max_bw = __le32_to_cpu(rp->max_bw);
1117 hdev->amp_min_latency = __le32_to_cpu(rp->min_latency);
1118 hdev->amp_max_pdu = __le32_to_cpu(rp->max_pdu);
1119 hdev->amp_type = rp->amp_type;
1120 hdev->amp_pal_cap = __le16_to_cpu(rp->pal_cap);
1121 hdev->amp_assoc_size = __le16_to_cpu(rp->max_assoc_size);
1122 hdev->amp_be_flush_to = __le32_to_cpu(rp->be_flush_to);
1123 hdev->amp_max_flush_to = __le32_to_cpu(rp->max_flush_to);
1128 static u8 hci_cc_read_inq_rsp_tx_power(struct hci_dev *hdev, void *data,
1129 struct sk_buff *skb)
1131 struct hci_rp_read_inq_rsp_tx_power *rp = data;
1133 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1138 hdev->inq_tx_power = rp->tx_power;
1143 static u8 hci_cc_read_def_err_data_reporting(struct hci_dev *hdev, void *data,
1144 struct sk_buff *skb)
1146 struct hci_rp_read_def_err_data_reporting *rp = data;
1148 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1153 hdev->err_data_reporting = rp->err_data_reporting;
1158 static u8 hci_cc_write_def_err_data_reporting(struct hci_dev *hdev, void *data,
1159 struct sk_buff *skb)
1161 struct hci_ev_status *rp = data;
1162 struct hci_cp_write_def_err_data_reporting *cp;
1164 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1169 cp = hci_sent_cmd_data(hdev, HCI_OP_WRITE_DEF_ERR_DATA_REPORTING);
1173 hdev->err_data_reporting = cp->err_data_reporting;
1178 static u8 hci_cc_pin_code_reply(struct hci_dev *hdev, void *data,
1179 struct sk_buff *skb)
1181 struct hci_rp_pin_code_reply *rp = data;
1182 struct hci_cp_pin_code_reply *cp;
1183 struct hci_conn *conn;
1185 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1189 if (hci_dev_test_flag(hdev, HCI_MGMT))
1190 mgmt_pin_code_reply_complete(hdev, &rp->bdaddr, rp->status);
1195 cp = hci_sent_cmd_data(hdev, HCI_OP_PIN_CODE_REPLY);
1199 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
1201 conn->pin_length = cp->pin_len;
1204 hci_dev_unlock(hdev);
1208 static u8 hci_cc_pin_code_neg_reply(struct hci_dev *hdev, void *data,
1209 struct sk_buff *skb)
1211 struct hci_rp_pin_code_neg_reply *rp = data;
1213 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1217 if (hci_dev_test_flag(hdev, HCI_MGMT))
1218 mgmt_pin_code_neg_reply_complete(hdev, &rp->bdaddr,
1221 hci_dev_unlock(hdev);
1226 static u8 hci_cc_le_read_buffer_size(struct hci_dev *hdev, void *data,
1227 struct sk_buff *skb)
1229 struct hci_rp_le_read_buffer_size *rp = data;
1231 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1236 hdev->le_mtu = __le16_to_cpu(rp->le_mtu);
1237 hdev->le_pkts = rp->le_max_pkt;
1239 hdev->le_cnt = hdev->le_pkts;
1241 BT_DBG("%s le mtu %d:%d", hdev->name, hdev->le_mtu, hdev->le_pkts);
1246 static u8 hci_cc_le_read_local_features(struct hci_dev *hdev, void *data,
1247 struct sk_buff *skb)
1249 struct hci_rp_le_read_local_features *rp = data;
1251 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
1256 memcpy(hdev->le_features, rp->features, 8);
1261 static u8 hci_cc_le_read_adv_tx_power(struct hci_dev *hdev, void *data,
1262 struct sk_buff *skb)
1264 struct hci_rp_le_read_adv_tx_power *rp = data;
1266 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1271 hdev->adv_tx_power = rp->tx_power;
1276 static u8 hci_cc_user_confirm_reply(struct hci_dev *hdev, void *data,
1277 struct sk_buff *skb)
1279 struct hci_rp_user_confirm_reply *rp = data;
1281 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1285 if (hci_dev_test_flag(hdev, HCI_MGMT))
1286 mgmt_user_confirm_reply_complete(hdev, &rp->bdaddr, ACL_LINK, 0,
1289 hci_dev_unlock(hdev);
1294 static u8 hci_cc_user_confirm_neg_reply(struct hci_dev *hdev, void *data,
1295 struct sk_buff *skb)
1297 struct hci_rp_user_confirm_reply *rp = data;
1299 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1303 if (hci_dev_test_flag(hdev, HCI_MGMT))
1304 mgmt_user_confirm_neg_reply_complete(hdev, &rp->bdaddr,
1305 ACL_LINK, 0, rp->status);
1307 hci_dev_unlock(hdev);
1312 static u8 hci_cc_user_passkey_reply(struct hci_dev *hdev, void *data,
1313 struct sk_buff *skb)
1315 struct hci_rp_user_confirm_reply *rp = data;
1317 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1321 if (hci_dev_test_flag(hdev, HCI_MGMT))
1322 mgmt_user_passkey_reply_complete(hdev, &rp->bdaddr, ACL_LINK,
1325 hci_dev_unlock(hdev);
1330 static u8 hci_cc_user_passkey_neg_reply(struct hci_dev *hdev, void *data,
1331 struct sk_buff *skb)
1333 struct hci_rp_user_confirm_reply *rp = data;
1335 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1339 if (hci_dev_test_flag(hdev, HCI_MGMT))
1340 mgmt_user_passkey_neg_reply_complete(hdev, &rp->bdaddr,
1341 ACL_LINK, 0, rp->status);
1343 hci_dev_unlock(hdev);
1348 static u8 hci_cc_read_local_oob_data(struct hci_dev *hdev, void *data,
1349 struct sk_buff *skb)
1351 struct hci_rp_read_local_oob_data *rp = data;
1353 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1358 static u8 hci_cc_read_local_oob_ext_data(struct hci_dev *hdev, void *data,
1359 struct sk_buff *skb)
1361 struct hci_rp_read_local_oob_ext_data *rp = data;
1363 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1368 static u8 hci_cc_le_set_random_addr(struct hci_dev *hdev, void *data,
1369 struct sk_buff *skb)
1371 struct hci_ev_status *rp = data;
1374 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1379 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_RANDOM_ADDR);
1385 bacpy(&hdev->random_addr, sent);
1387 if (!bacmp(&hdev->rpa, sent)) {
1388 hci_dev_clear_flag(hdev, HCI_RPA_EXPIRED);
1389 queue_delayed_work(hdev->workqueue, &hdev->rpa_expired,
1390 secs_to_jiffies(hdev->rpa_timeout));
1393 hci_dev_unlock(hdev);
1398 static u8 hci_cc_le_set_default_phy(struct hci_dev *hdev, void *data,
1399 struct sk_buff *skb)
1401 struct hci_ev_status *rp = data;
1402 struct hci_cp_le_set_default_phy *cp;
1404 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1409 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_DEFAULT_PHY);
1415 hdev->le_tx_def_phys = cp->tx_phys;
1416 hdev->le_rx_def_phys = cp->rx_phys;
1418 hci_dev_unlock(hdev);
1423 static u8 hci_cc_le_set_adv_set_random_addr(struct hci_dev *hdev, void *data,
1424 struct sk_buff *skb)
1426 struct hci_ev_status *rp = data;
1427 struct hci_cp_le_set_adv_set_rand_addr *cp;
1428 struct adv_info *adv;
1430 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1435 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADV_SET_RAND_ADDR);
1436 /* Update only in case the adv instance since handle 0x00 shall be using
1437 * HCI_OP_LE_SET_RANDOM_ADDR since that allows both extended and
1438 * non-extended adverting.
1440 if (!cp || !cp->handle)
1445 adv = hci_find_adv_instance(hdev, cp->handle);
1447 bacpy(&adv->random_addr, &cp->bdaddr);
1448 if (!bacmp(&hdev->rpa, &cp->bdaddr)) {
1449 adv->rpa_expired = false;
1450 queue_delayed_work(hdev->workqueue,
1451 &adv->rpa_expired_cb,
1452 secs_to_jiffies(hdev->rpa_timeout));
1456 hci_dev_unlock(hdev);
1461 static u8 hci_cc_le_remove_adv_set(struct hci_dev *hdev, void *data,
1462 struct sk_buff *skb)
1464 struct hci_ev_status *rp = data;
1468 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1473 instance = hci_sent_cmd_data(hdev, HCI_OP_LE_REMOVE_ADV_SET);
1479 err = hci_remove_adv_instance(hdev, *instance);
1481 mgmt_advertising_removed(hci_skb_sk(hdev->sent_cmd), hdev,
1484 hci_dev_unlock(hdev);
1489 static u8 hci_cc_le_clear_adv_sets(struct hci_dev *hdev, void *data,
1490 struct sk_buff *skb)
1492 struct hci_ev_status *rp = data;
1493 struct adv_info *adv, *n;
1496 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1501 if (!hci_sent_cmd_data(hdev, HCI_OP_LE_CLEAR_ADV_SETS))
1506 list_for_each_entry_safe(adv, n, &hdev->adv_instances, list) {
1507 u8 instance = adv->instance;
1509 err = hci_remove_adv_instance(hdev, instance);
1511 mgmt_advertising_removed(hci_skb_sk(hdev->sent_cmd),
1515 hci_dev_unlock(hdev);
1520 static u8 hci_cc_le_read_transmit_power(struct hci_dev *hdev, void *data,
1521 struct sk_buff *skb)
1523 struct hci_rp_le_read_transmit_power *rp = data;
1525 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1530 hdev->min_le_tx_power = rp->min_le_tx_power;
1531 hdev->max_le_tx_power = rp->max_le_tx_power;
1536 static u8 hci_cc_le_set_privacy_mode(struct hci_dev *hdev, void *data,
1537 struct sk_buff *skb)
1539 struct hci_ev_status *rp = data;
1540 struct hci_cp_le_set_privacy_mode *cp;
1541 struct hci_conn_params *params;
1543 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1548 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_PRIVACY_MODE);
1554 params = hci_conn_params_lookup(hdev, &cp->bdaddr, cp->bdaddr_type);
1556 params->privacy_mode = cp->mode;
1558 hci_dev_unlock(hdev);
1563 static u8 hci_cc_le_set_adv_enable(struct hci_dev *hdev, void *data,
1564 struct sk_buff *skb)
1566 struct hci_ev_status *rp = data;
1569 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1574 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADV_ENABLE);
1580 /* If we're doing connection initiation as peripheral. Set a
1581 * timeout in case something goes wrong.
1584 struct hci_conn *conn;
1586 hci_dev_set_flag(hdev, HCI_LE_ADV);
1588 conn = hci_lookup_le_connect(hdev);
1590 queue_delayed_work(hdev->workqueue,
1591 &conn->le_conn_timeout,
1592 conn->conn_timeout);
1594 hci_dev_clear_flag(hdev, HCI_LE_ADV);
1597 hci_dev_unlock(hdev);
1602 static u8 hci_cc_le_set_ext_adv_enable(struct hci_dev *hdev, void *data,
1603 struct sk_buff *skb)
1605 struct hci_cp_le_set_ext_adv_enable *cp;
1606 struct hci_cp_ext_adv_set *set;
1607 struct adv_info *adv = NULL, *n;
1608 struct hci_ev_status *rp = data;
1610 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1615 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_EXT_ADV_ENABLE);
1619 set = (void *)cp->data;
1623 if (cp->num_of_sets)
1624 adv = hci_find_adv_instance(hdev, set->handle);
1627 struct hci_conn *conn;
1629 hci_dev_set_flag(hdev, HCI_LE_ADV);
1632 adv->enabled = true;
1634 conn = hci_lookup_le_connect(hdev);
1636 queue_delayed_work(hdev->workqueue,
1637 &conn->le_conn_timeout,
1638 conn->conn_timeout);
1640 if (cp->num_of_sets) {
1642 adv->enabled = false;
1644 /* If just one instance was disabled check if there are
1645 * any other instance enabled before clearing HCI_LE_ADV
1647 list_for_each_entry_safe(adv, n, &hdev->adv_instances,
1653 /* All instances shall be considered disabled */
1654 list_for_each_entry_safe(adv, n, &hdev->adv_instances,
1656 adv->enabled = false;
1659 hci_dev_clear_flag(hdev, HCI_LE_ADV);
1663 hci_dev_unlock(hdev);
1667 static u8 hci_cc_le_set_scan_param(struct hci_dev *hdev, void *data,
1668 struct sk_buff *skb)
1670 struct hci_cp_le_set_scan_param *cp;
1671 struct hci_ev_status *rp = data;
1673 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1678 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_SCAN_PARAM);
1684 hdev->le_scan_type = cp->type;
1686 hci_dev_unlock(hdev);
1691 static u8 hci_cc_le_set_ext_scan_param(struct hci_dev *hdev, void *data,
1692 struct sk_buff *skb)
1694 struct hci_cp_le_set_ext_scan_params *cp;
1695 struct hci_ev_status *rp = data;
1696 struct hci_cp_le_scan_phy_params *phy_param;
1698 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1703 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_EXT_SCAN_PARAMS);
1707 phy_param = (void *)cp->data;
1711 hdev->le_scan_type = phy_param->type;
1713 hci_dev_unlock(hdev);
1718 static bool has_pending_adv_report(struct hci_dev *hdev)
1720 struct discovery_state *d = &hdev->discovery;
1722 return bacmp(&d->last_adv_addr, BDADDR_ANY);
1725 static void clear_pending_adv_report(struct hci_dev *hdev)
1727 struct discovery_state *d = &hdev->discovery;
1729 bacpy(&d->last_adv_addr, BDADDR_ANY);
1730 d->last_adv_data_len = 0;
1733 static void store_pending_adv_report(struct hci_dev *hdev, bdaddr_t *bdaddr,
1734 u8 bdaddr_type, s8 rssi, u32 flags,
1737 struct discovery_state *d = &hdev->discovery;
1739 if (len > HCI_MAX_AD_LENGTH)
1742 bacpy(&d->last_adv_addr, bdaddr);
1743 d->last_adv_addr_type = bdaddr_type;
1744 d->last_adv_rssi = rssi;
1745 d->last_adv_flags = flags;
1746 memcpy(d->last_adv_data, data, len);
1747 d->last_adv_data_len = len;
1750 static void le_set_scan_enable_complete(struct hci_dev *hdev, u8 enable)
1755 case LE_SCAN_ENABLE:
1756 hci_dev_set_flag(hdev, HCI_LE_SCAN);
1757 if (hdev->le_scan_type == LE_SCAN_ACTIVE)
1758 clear_pending_adv_report(hdev);
1759 if (hci_dev_test_flag(hdev, HCI_MESH))
1760 hci_discovery_set_state(hdev, DISCOVERY_FINDING);
1763 case LE_SCAN_DISABLE:
1764 /* We do this here instead of when setting DISCOVERY_STOPPED
1765 * since the latter would potentially require waiting for
1766 * inquiry to stop too.
1768 if (has_pending_adv_report(hdev)) {
1769 struct discovery_state *d = &hdev->discovery;
1771 mgmt_device_found(hdev, &d->last_adv_addr, LE_LINK,
1772 d->last_adv_addr_type, NULL,
1773 d->last_adv_rssi, d->last_adv_flags,
1775 d->last_adv_data_len, NULL, 0, 0);
1778 /* Cancel this timer so that we don't try to disable scanning
1779 * when it's already disabled.
1781 cancel_delayed_work(&hdev->le_scan_disable);
1783 hci_dev_clear_flag(hdev, HCI_LE_SCAN);
1785 /* The HCI_LE_SCAN_INTERRUPTED flag indicates that we
1786 * interrupted scanning due to a connect request. Mark
1787 * therefore discovery as stopped.
1789 if (hci_dev_test_and_clear_flag(hdev, HCI_LE_SCAN_INTERRUPTED))
1790 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
1791 else if (!hci_dev_test_flag(hdev, HCI_LE_ADV) &&
1792 hdev->discovery.state == DISCOVERY_FINDING)
1793 queue_work(hdev->workqueue, &hdev->reenable_adv_work);
1798 bt_dev_err(hdev, "use of reserved LE_Scan_Enable param %d",
1803 hci_dev_unlock(hdev);
1806 static u8 hci_cc_le_set_scan_enable(struct hci_dev *hdev, void *data,
1807 struct sk_buff *skb)
1809 struct hci_cp_le_set_scan_enable *cp;
1810 struct hci_ev_status *rp = data;
1812 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1817 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_SCAN_ENABLE);
1821 le_set_scan_enable_complete(hdev, cp->enable);
1826 static u8 hci_cc_le_set_ext_scan_enable(struct hci_dev *hdev, void *data,
1827 struct sk_buff *skb)
1829 struct hci_cp_le_set_ext_scan_enable *cp;
1830 struct hci_ev_status *rp = data;
1832 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1837 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_EXT_SCAN_ENABLE);
1841 le_set_scan_enable_complete(hdev, cp->enable);
1846 static u8 hci_cc_le_read_num_adv_sets(struct hci_dev *hdev, void *data,
1847 struct sk_buff *skb)
1849 struct hci_rp_le_read_num_supported_adv_sets *rp = data;
1851 bt_dev_dbg(hdev, "status 0x%2.2x No of Adv sets %u", rp->status,
1857 hdev->le_num_of_adv_sets = rp->num_of_sets;
1862 static u8 hci_cc_le_read_accept_list_size(struct hci_dev *hdev, void *data,
1863 struct sk_buff *skb)
1865 struct hci_rp_le_read_accept_list_size *rp = data;
1867 bt_dev_dbg(hdev, "status 0x%2.2x size %u", rp->status, rp->size);
1872 hdev->le_accept_list_size = rp->size;
1877 static u8 hci_cc_le_clear_accept_list(struct hci_dev *hdev, void *data,
1878 struct sk_buff *skb)
1880 struct hci_ev_status *rp = data;
1882 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1888 hci_bdaddr_list_clear(&hdev->le_accept_list);
1889 hci_dev_unlock(hdev);
1894 static u8 hci_cc_le_add_to_accept_list(struct hci_dev *hdev, void *data,
1895 struct sk_buff *skb)
1897 struct hci_cp_le_add_to_accept_list *sent;
1898 struct hci_ev_status *rp = data;
1900 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1905 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_ADD_TO_ACCEPT_LIST);
1910 hci_bdaddr_list_add(&hdev->le_accept_list, &sent->bdaddr,
1912 hci_dev_unlock(hdev);
1917 static u8 hci_cc_le_del_from_accept_list(struct hci_dev *hdev, void *data,
1918 struct sk_buff *skb)
1920 struct hci_cp_le_del_from_accept_list *sent;
1921 struct hci_ev_status *rp = data;
1923 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1928 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_DEL_FROM_ACCEPT_LIST);
1933 hci_bdaddr_list_del(&hdev->le_accept_list, &sent->bdaddr,
1935 hci_dev_unlock(hdev);
1940 static u8 hci_cc_le_read_supported_states(struct hci_dev *hdev, void *data,
1941 struct sk_buff *skb)
1943 struct hci_rp_le_read_supported_states *rp = data;
1945 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1950 memcpy(hdev->le_states, rp->le_states, 8);
1955 static u8 hci_cc_le_read_def_data_len(struct hci_dev *hdev, void *data,
1956 struct sk_buff *skb)
1958 struct hci_rp_le_read_def_data_len *rp = data;
1960 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1965 hdev->le_def_tx_len = le16_to_cpu(rp->tx_len);
1966 hdev->le_def_tx_time = le16_to_cpu(rp->tx_time);
1971 static u8 hci_cc_le_write_def_data_len(struct hci_dev *hdev, void *data,
1972 struct sk_buff *skb)
1974 struct hci_cp_le_write_def_data_len *sent;
1975 struct hci_ev_status *rp = data;
1977 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1982 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_WRITE_DEF_DATA_LEN);
1986 hdev->le_def_tx_len = le16_to_cpu(sent->tx_len);
1987 hdev->le_def_tx_time = le16_to_cpu(sent->tx_time);
1992 static u8 hci_cc_le_add_to_resolv_list(struct hci_dev *hdev, void *data,
1993 struct sk_buff *skb)
1995 struct hci_cp_le_add_to_resolv_list *sent;
1996 struct hci_ev_status *rp = data;
1998 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2003 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_ADD_TO_RESOLV_LIST);
2008 hci_bdaddr_list_add_with_irk(&hdev->le_resolv_list, &sent->bdaddr,
2009 sent->bdaddr_type, sent->peer_irk,
2011 hci_dev_unlock(hdev);
2016 static u8 hci_cc_le_del_from_resolv_list(struct hci_dev *hdev, void *data,
2017 struct sk_buff *skb)
2019 struct hci_cp_le_del_from_resolv_list *sent;
2020 struct hci_ev_status *rp = data;
2022 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2027 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_DEL_FROM_RESOLV_LIST);
2032 hci_bdaddr_list_del_with_irk(&hdev->le_resolv_list, &sent->bdaddr,
2034 hci_dev_unlock(hdev);
2039 static u8 hci_cc_le_clear_resolv_list(struct hci_dev *hdev, void *data,
2040 struct sk_buff *skb)
2042 struct hci_ev_status *rp = data;
2044 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2050 hci_bdaddr_list_clear(&hdev->le_resolv_list);
2051 hci_dev_unlock(hdev);
2056 static u8 hci_cc_le_read_resolv_list_size(struct hci_dev *hdev, void *data,
2057 struct sk_buff *skb)
2059 struct hci_rp_le_read_resolv_list_size *rp = data;
2061 bt_dev_dbg(hdev, "status 0x%2.2x size %u", rp->status, rp->size);
2066 hdev->le_resolv_list_size = rp->size;
2071 static u8 hci_cc_le_set_addr_resolution_enable(struct hci_dev *hdev, void *data,
2072 struct sk_buff *skb)
2074 struct hci_ev_status *rp = data;
2077 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2082 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADDR_RESOLV_ENABLE);
2089 hci_dev_set_flag(hdev, HCI_LL_RPA_RESOLUTION);
2091 hci_dev_clear_flag(hdev, HCI_LL_RPA_RESOLUTION);
2093 hci_dev_unlock(hdev);
2098 static u8 hci_cc_le_read_max_data_len(struct hci_dev *hdev, void *data,
2099 struct sk_buff *skb)
2101 struct hci_rp_le_read_max_data_len *rp = data;
2103 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2108 hdev->le_max_tx_len = le16_to_cpu(rp->tx_len);
2109 hdev->le_max_tx_time = le16_to_cpu(rp->tx_time);
2110 hdev->le_max_rx_len = le16_to_cpu(rp->rx_len);
2111 hdev->le_max_rx_time = le16_to_cpu(rp->rx_time);
2116 static u8 hci_cc_write_le_host_supported(struct hci_dev *hdev, void *data,
2117 struct sk_buff *skb)
2119 struct hci_cp_write_le_host_supported *sent;
2120 struct hci_ev_status *rp = data;
2122 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2127 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LE_HOST_SUPPORTED);
2134 hdev->features[1][0] |= LMP_HOST_LE;
2135 hci_dev_set_flag(hdev, HCI_LE_ENABLED);
2137 hdev->features[1][0] &= ~LMP_HOST_LE;
2138 hci_dev_clear_flag(hdev, HCI_LE_ENABLED);
2139 hci_dev_clear_flag(hdev, HCI_ADVERTISING);
2143 hdev->features[1][0] |= LMP_HOST_LE_BREDR;
2145 hdev->features[1][0] &= ~LMP_HOST_LE_BREDR;
2147 hci_dev_unlock(hdev);
2152 static u8 hci_cc_set_adv_param(struct hci_dev *hdev, void *data,
2153 struct sk_buff *skb)
2155 struct hci_cp_le_set_adv_param *cp;
2156 struct hci_ev_status *rp = data;
2158 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2163 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADV_PARAM);
2168 hdev->adv_addr_type = cp->own_address_type;
2169 hci_dev_unlock(hdev);
2174 static u8 hci_cc_set_ext_adv_param(struct hci_dev *hdev, void *data,
2175 struct sk_buff *skb)
2177 struct hci_rp_le_set_ext_adv_params *rp = data;
2178 struct hci_cp_le_set_ext_adv_params *cp;
2179 struct adv_info *adv_instance;
2181 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2186 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_EXT_ADV_PARAMS);
2191 hdev->adv_addr_type = cp->own_addr_type;
2193 /* Store in hdev for instance 0 */
2194 hdev->adv_tx_power = rp->tx_power;
2196 adv_instance = hci_find_adv_instance(hdev, cp->handle);
2198 adv_instance->tx_power = rp->tx_power;
2200 /* Update adv data as tx power is known now */
2201 hci_update_adv_data(hdev, cp->handle);
2203 hci_dev_unlock(hdev);
2208 static u8 hci_cc_read_rssi(struct hci_dev *hdev, void *data,
2209 struct sk_buff *skb)
2211 struct hci_rp_read_rssi *rp = data;
2212 struct hci_conn *conn;
2214 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2221 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
2223 conn->rssi = rp->rssi;
2225 hci_dev_unlock(hdev);
2230 static u8 hci_cc_read_tx_power(struct hci_dev *hdev, void *data,
2231 struct sk_buff *skb)
2233 struct hci_cp_read_tx_power *sent;
2234 struct hci_rp_read_tx_power *rp = data;
2235 struct hci_conn *conn;
2237 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2242 sent = hci_sent_cmd_data(hdev, HCI_OP_READ_TX_POWER);
2248 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
2252 switch (sent->type) {
2254 conn->tx_power = rp->tx_power;
2257 conn->max_tx_power = rp->tx_power;
2262 hci_dev_unlock(hdev);
2266 static u8 hci_cc_write_ssp_debug_mode(struct hci_dev *hdev, void *data,
2267 struct sk_buff *skb)
2269 struct hci_ev_status *rp = data;
2272 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2277 mode = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SSP_DEBUG_MODE);
2279 hdev->ssp_debug_mode = *mode;
2284 static void hci_cs_inquiry(struct hci_dev *hdev, __u8 status)
2286 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2289 hci_conn_check_pending(hdev);
2293 set_bit(HCI_INQUIRY, &hdev->flags);
2296 static void hci_cs_create_conn(struct hci_dev *hdev, __u8 status)
2298 struct hci_cp_create_conn *cp;
2299 struct hci_conn *conn;
2301 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2303 cp = hci_sent_cmd_data(hdev, HCI_OP_CREATE_CONN);
2309 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
2311 bt_dev_dbg(hdev, "bdaddr %pMR hcon %p", &cp->bdaddr, conn);
2314 if (conn && conn->state == BT_CONNECT) {
2315 if (status != 0x0c || conn->attempt > 2) {
2316 conn->state = BT_CLOSED;
2317 hci_connect_cfm(conn, status);
2320 conn->state = BT_CONNECT2;
2324 conn = hci_conn_add(hdev, ACL_LINK, &cp->bdaddr,
2327 bt_dev_err(hdev, "no memory for new connection");
2331 hci_dev_unlock(hdev);
2334 static void hci_cs_add_sco(struct hci_dev *hdev, __u8 status)
2336 struct hci_cp_add_sco *cp;
2337 struct hci_conn *acl, *sco;
2340 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2345 cp = hci_sent_cmd_data(hdev, HCI_OP_ADD_SCO);
2349 handle = __le16_to_cpu(cp->handle);
2351 bt_dev_dbg(hdev, "handle 0x%4.4x", handle);
2355 acl = hci_conn_hash_lookup_handle(hdev, handle);
2359 sco->state = BT_CLOSED;
2361 hci_connect_cfm(sco, status);
2366 hci_dev_unlock(hdev);
2369 static void hci_cs_auth_requested(struct hci_dev *hdev, __u8 status)
2371 struct hci_cp_auth_requested *cp;
2372 struct hci_conn *conn;
2374 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2379 cp = hci_sent_cmd_data(hdev, HCI_OP_AUTH_REQUESTED);
2385 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2387 if (conn->state == BT_CONFIG) {
2388 hci_connect_cfm(conn, status);
2389 hci_conn_drop(conn);
2393 hci_dev_unlock(hdev);
2396 static void hci_cs_set_conn_encrypt(struct hci_dev *hdev, __u8 status)
2398 struct hci_cp_set_conn_encrypt *cp;
2399 struct hci_conn *conn;
2401 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2406 cp = hci_sent_cmd_data(hdev, HCI_OP_SET_CONN_ENCRYPT);
2412 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2414 if (conn->state == BT_CONFIG) {
2415 hci_connect_cfm(conn, status);
2416 hci_conn_drop(conn);
2420 hci_dev_unlock(hdev);
2423 static int hci_outgoing_auth_needed(struct hci_dev *hdev,
2424 struct hci_conn *conn)
2426 if (conn->state != BT_CONFIG || !conn->out)
2429 if (conn->pending_sec_level == BT_SECURITY_SDP)
2432 /* Only request authentication for SSP connections or non-SSP
2433 * devices with sec_level MEDIUM or HIGH or if MITM protection
2436 if (!hci_conn_ssp_enabled(conn) && !(conn->auth_type & 0x01) &&
2437 conn->pending_sec_level != BT_SECURITY_FIPS &&
2438 conn->pending_sec_level != BT_SECURITY_HIGH &&
2439 conn->pending_sec_level != BT_SECURITY_MEDIUM)
2445 static int hci_resolve_name(struct hci_dev *hdev,
2446 struct inquiry_entry *e)
2448 struct hci_cp_remote_name_req cp;
2450 memset(&cp, 0, sizeof(cp));
2452 bacpy(&cp.bdaddr, &e->data.bdaddr);
2453 cp.pscan_rep_mode = e->data.pscan_rep_mode;
2454 cp.pscan_mode = e->data.pscan_mode;
2455 cp.clock_offset = e->data.clock_offset;
2457 return hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp);
2460 static bool hci_resolve_next_name(struct hci_dev *hdev)
2462 struct discovery_state *discov = &hdev->discovery;
2463 struct inquiry_entry *e;
2465 if (list_empty(&discov->resolve))
2468 /* We should stop if we already spent too much time resolving names. */
2469 if (time_after(jiffies, discov->name_resolve_timeout)) {
2470 bt_dev_warn_ratelimited(hdev, "Name resolve takes too long.");
2474 e = hci_inquiry_cache_lookup_resolve(hdev, BDADDR_ANY, NAME_NEEDED);
2478 if (hci_resolve_name(hdev, e) == 0) {
2479 e->name_state = NAME_PENDING;
2486 static void hci_check_pending_name(struct hci_dev *hdev, struct hci_conn *conn,
2487 bdaddr_t *bdaddr, u8 *name, u8 name_len)
2489 struct discovery_state *discov = &hdev->discovery;
2490 struct inquiry_entry *e;
2492 /* Update the mgmt connected state if necessary. Be careful with
2493 * conn objects that exist but are not (yet) connected however.
2494 * Only those in BT_CONFIG or BT_CONNECTED states can be
2495 * considered connected.
2498 (conn->state == BT_CONFIG || conn->state == BT_CONNECTED) &&
2499 !test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
2500 mgmt_device_connected(hdev, conn, name, name_len);
2502 if (discov->state == DISCOVERY_STOPPED)
2505 if (discov->state == DISCOVERY_STOPPING)
2506 goto discov_complete;
2508 if (discov->state != DISCOVERY_RESOLVING)
2511 e = hci_inquiry_cache_lookup_resolve(hdev, bdaddr, NAME_PENDING);
2512 /* If the device was not found in a list of found devices names of which
2513 * are pending. there is no need to continue resolving a next name as it
2514 * will be done upon receiving another Remote Name Request Complete
2521 e->name_state = name ? NAME_KNOWN : NAME_NOT_KNOWN;
2522 mgmt_remote_name(hdev, bdaddr, ACL_LINK, 0x00, e->data.rssi,
2525 if (hci_resolve_next_name(hdev))
2529 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
2532 static void hci_cs_remote_name_req(struct hci_dev *hdev, __u8 status)
2534 struct hci_cp_remote_name_req *cp;
2535 struct hci_conn *conn;
2537 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2539 /* If successful wait for the name req complete event before
2540 * checking for the need to do authentication */
2544 cp = hci_sent_cmd_data(hdev, HCI_OP_REMOTE_NAME_REQ);
2550 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
2552 if (hci_dev_test_flag(hdev, HCI_MGMT))
2553 hci_check_pending_name(hdev, conn, &cp->bdaddr, NULL, 0);
2558 if (!hci_outgoing_auth_needed(hdev, conn))
2561 if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->flags)) {
2562 struct hci_cp_auth_requested auth_cp;
2564 set_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags);
2566 auth_cp.handle = __cpu_to_le16(conn->handle);
2567 hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED,
2568 sizeof(auth_cp), &auth_cp);
2572 hci_dev_unlock(hdev);
2575 static void hci_cs_read_remote_features(struct hci_dev *hdev, __u8 status)
2577 struct hci_cp_read_remote_features *cp;
2578 struct hci_conn *conn;
2580 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2585 cp = hci_sent_cmd_data(hdev, HCI_OP_READ_REMOTE_FEATURES);
2591 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2593 if (conn->state == BT_CONFIG) {
2594 hci_connect_cfm(conn, status);
2595 hci_conn_drop(conn);
2599 hci_dev_unlock(hdev);
2602 static void hci_cs_read_remote_ext_features(struct hci_dev *hdev, __u8 status)
2604 struct hci_cp_read_remote_ext_features *cp;
2605 struct hci_conn *conn;
2607 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2612 cp = hci_sent_cmd_data(hdev, HCI_OP_READ_REMOTE_EXT_FEATURES);
2618 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2620 if (conn->state == BT_CONFIG) {
2621 hci_connect_cfm(conn, status);
2622 hci_conn_drop(conn);
2626 hci_dev_unlock(hdev);
2629 static void hci_cs_setup_sync_conn(struct hci_dev *hdev, __u8 status)
2631 struct hci_cp_setup_sync_conn *cp;
2632 struct hci_conn *acl, *sco;
2635 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2640 cp = hci_sent_cmd_data(hdev, HCI_OP_SETUP_SYNC_CONN);
2644 handle = __le16_to_cpu(cp->handle);
2646 bt_dev_dbg(hdev, "handle 0x%4.4x", handle);
2650 acl = hci_conn_hash_lookup_handle(hdev, handle);
2654 sco->state = BT_CLOSED;
2656 hci_connect_cfm(sco, status);
2661 hci_dev_unlock(hdev);
2664 static void hci_cs_enhanced_setup_sync_conn(struct hci_dev *hdev, __u8 status)
2666 struct hci_cp_enhanced_setup_sync_conn *cp;
2667 struct hci_conn *acl, *sco;
2670 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2675 cp = hci_sent_cmd_data(hdev, HCI_OP_ENHANCED_SETUP_SYNC_CONN);
2679 handle = __le16_to_cpu(cp->handle);
2681 bt_dev_dbg(hdev, "handle 0x%4.4x", handle);
2685 acl = hci_conn_hash_lookup_handle(hdev, handle);
2689 sco->state = BT_CLOSED;
2691 hci_connect_cfm(sco, status);
2696 hci_dev_unlock(hdev);
2699 static void hci_cs_sniff_mode(struct hci_dev *hdev, __u8 status)
2701 struct hci_cp_sniff_mode *cp;
2702 struct hci_conn *conn;
2704 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2709 cp = hci_sent_cmd_data(hdev, HCI_OP_SNIFF_MODE);
2715 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2717 clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->flags);
2719 if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags))
2720 hci_sco_setup(conn, status);
2723 hci_dev_unlock(hdev);
2726 static void hci_cs_exit_sniff_mode(struct hci_dev *hdev, __u8 status)
2728 struct hci_cp_exit_sniff_mode *cp;
2729 struct hci_conn *conn;
2731 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2736 cp = hci_sent_cmd_data(hdev, HCI_OP_EXIT_SNIFF_MODE);
2742 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2744 clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->flags);
2746 if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags))
2747 hci_sco_setup(conn, status);
2750 hci_dev_unlock(hdev);
2753 static void hci_cs_disconnect(struct hci_dev *hdev, u8 status)
2755 struct hci_cp_disconnect *cp;
2756 struct hci_conn_params *params;
2757 struct hci_conn *conn;
2760 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2762 /* Wait for HCI_EV_DISCONN_COMPLETE if status 0x00 and not suspended
2763 * otherwise cleanup the connection immediately.
2765 if (!status && !hdev->suspended)
2768 cp = hci_sent_cmd_data(hdev, HCI_OP_DISCONNECT);
2774 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2779 mgmt_disconnect_failed(hdev, &conn->dst, conn->type,
2780 conn->dst_type, status);
2782 if (conn->type == LE_LINK && conn->role == HCI_ROLE_SLAVE) {
2783 hdev->cur_adv_instance = conn->adv_instance;
2784 hci_enable_advertising(hdev);
2790 mgmt_conn = test_and_clear_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags);
2792 if (conn->type == ACL_LINK) {
2793 if (test_and_clear_bit(HCI_CONN_FLUSH_KEY, &conn->flags))
2794 hci_remove_link_key(hdev, &conn->dst);
2797 params = hci_conn_params_lookup(hdev, &conn->dst, conn->dst_type);
2799 switch (params->auto_connect) {
2800 case HCI_AUTO_CONN_LINK_LOSS:
2801 if (cp->reason != HCI_ERROR_CONNECTION_TIMEOUT)
2805 case HCI_AUTO_CONN_DIRECT:
2806 case HCI_AUTO_CONN_ALWAYS:
2807 list_del_init(¶ms->action);
2808 list_add(¶ms->action, &hdev->pend_le_conns);
2816 mgmt_device_disconnected(hdev, &conn->dst, conn->type, conn->dst_type,
2817 cp->reason, mgmt_conn);
2819 hci_disconn_cfm(conn, cp->reason);
2822 /* If the disconnection failed for any reason, the upper layer
2823 * does not retry to disconnect in current implementation.
2824 * Hence, we need to do some basic cleanup here and re-enable
2825 * advertising if necessary.
2829 hci_dev_unlock(hdev);
2832 static u8 ev_bdaddr_type(struct hci_dev *hdev, u8 type, bool *resolved)
2834 /* When using controller based address resolution, then the new
2835 * address types 0x02 and 0x03 are used. These types need to be
2836 * converted back into either public address or random address type
2839 case ADDR_LE_DEV_PUBLIC_RESOLVED:
2842 return ADDR_LE_DEV_PUBLIC;
2843 case ADDR_LE_DEV_RANDOM_RESOLVED:
2846 return ADDR_LE_DEV_RANDOM;
2854 static void cs_le_create_conn(struct hci_dev *hdev, bdaddr_t *peer_addr,
2855 u8 peer_addr_type, u8 own_address_type,
2858 struct hci_conn *conn;
2860 conn = hci_conn_hash_lookup_le(hdev, peer_addr,
2865 own_address_type = ev_bdaddr_type(hdev, own_address_type, NULL);
2867 /* Store the initiator and responder address information which
2868 * is needed for SMP. These values will not change during the
2869 * lifetime of the connection.
2871 conn->init_addr_type = own_address_type;
2872 if (own_address_type == ADDR_LE_DEV_RANDOM)
2873 bacpy(&conn->init_addr, &hdev->random_addr);
2875 bacpy(&conn->init_addr, &hdev->bdaddr);
2877 conn->resp_addr_type = peer_addr_type;
2878 bacpy(&conn->resp_addr, peer_addr);
2880 /* We don't want the connection attempt to stick around
2881 * indefinitely since LE doesn't have a page timeout concept
2882 * like BR/EDR. Set a timer for any connection that doesn't use
2883 * the accept list for connecting.
2885 if (filter_policy == HCI_LE_USE_PEER_ADDR)
2886 queue_delayed_work(conn->hdev->workqueue,
2887 &conn->le_conn_timeout,
2888 conn->conn_timeout);
2891 static void hci_cs_le_create_conn(struct hci_dev *hdev, u8 status)
2893 struct hci_cp_le_create_conn *cp;
2895 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2897 /* All connection failure handling is taken care of by the
2898 * hci_conn_failed function which is triggered by the HCI
2899 * request completion callbacks used for connecting.
2904 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_CREATE_CONN);
2910 cs_le_create_conn(hdev, &cp->peer_addr, cp->peer_addr_type,
2911 cp->own_address_type, cp->filter_policy);
2913 hci_dev_unlock(hdev);
2916 static void hci_cs_le_ext_create_conn(struct hci_dev *hdev, u8 status)
2918 struct hci_cp_le_ext_create_conn *cp;
2920 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2922 /* All connection failure handling is taken care of by the
2923 * hci_conn_failed function which is triggered by the HCI
2924 * request completion callbacks used for connecting.
2929 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_EXT_CREATE_CONN);
2935 cs_le_create_conn(hdev, &cp->peer_addr, cp->peer_addr_type,
2936 cp->own_addr_type, cp->filter_policy);
2938 hci_dev_unlock(hdev);
2941 static void hci_cs_le_read_remote_features(struct hci_dev *hdev, u8 status)
2943 struct hci_cp_le_read_remote_features *cp;
2944 struct hci_conn *conn;
2946 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2951 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_READ_REMOTE_FEATURES);
2957 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2959 if (conn->state == BT_CONFIG) {
2960 hci_connect_cfm(conn, status);
2961 hci_conn_drop(conn);
2965 hci_dev_unlock(hdev);
2968 static void hci_cs_le_start_enc(struct hci_dev *hdev, u8 status)
2970 struct hci_cp_le_start_enc *cp;
2971 struct hci_conn *conn;
2973 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2980 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_START_ENC);
2984 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2988 if (conn->state != BT_CONNECTED)
2991 hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE);
2992 hci_conn_drop(conn);
2995 hci_dev_unlock(hdev);
2998 static void hci_cs_switch_role(struct hci_dev *hdev, u8 status)
3000 struct hci_cp_switch_role *cp;
3001 struct hci_conn *conn;
3003 BT_DBG("%s status 0x%2.2x", hdev->name, status);
3008 cp = hci_sent_cmd_data(hdev, HCI_OP_SWITCH_ROLE);
3014 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
3016 clear_bit(HCI_CONN_RSWITCH_PEND, &conn->flags);
3018 hci_dev_unlock(hdev);
3021 static void hci_inquiry_complete_evt(struct hci_dev *hdev, void *data,
3022 struct sk_buff *skb)
3024 struct hci_ev_status *ev = data;
3025 struct discovery_state *discov = &hdev->discovery;
3026 struct inquiry_entry *e;
3028 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
3030 hci_conn_check_pending(hdev);
3032 if (!test_and_clear_bit(HCI_INQUIRY, &hdev->flags))
3035 smp_mb__after_atomic(); /* wake_up_bit advises about this barrier */
3036 wake_up_bit(&hdev->flags, HCI_INQUIRY);
3038 if (!hci_dev_test_flag(hdev, HCI_MGMT))
3043 if (discov->state != DISCOVERY_FINDING)
3046 if (list_empty(&discov->resolve)) {
3047 /* When BR/EDR inquiry is active and no LE scanning is in
3048 * progress, then change discovery state to indicate completion.
3050 * When running LE scanning and BR/EDR inquiry simultaneously
3051 * and the LE scan already finished, then change the discovery
3052 * state to indicate completion.
3054 if (!hci_dev_test_flag(hdev, HCI_LE_SCAN) ||
3055 !test_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks))
3056 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
3060 e = hci_inquiry_cache_lookup_resolve(hdev, BDADDR_ANY, NAME_NEEDED);
3061 if (e && hci_resolve_name(hdev, e) == 0) {
3062 e->name_state = NAME_PENDING;
3063 hci_discovery_set_state(hdev, DISCOVERY_RESOLVING);
3064 discov->name_resolve_timeout = jiffies + NAME_RESOLVE_DURATION;
3066 /* When BR/EDR inquiry is active and no LE scanning is in
3067 * progress, then change discovery state to indicate completion.
3069 * When running LE scanning and BR/EDR inquiry simultaneously
3070 * and the LE scan already finished, then change the discovery
3071 * state to indicate completion.
3073 if (!hci_dev_test_flag(hdev, HCI_LE_SCAN) ||
3074 !test_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks))
3075 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
3079 hci_dev_unlock(hdev);
3082 static void hci_inquiry_result_evt(struct hci_dev *hdev, void *edata,
3083 struct sk_buff *skb)
3085 struct hci_ev_inquiry_result *ev = edata;
3086 struct inquiry_data data;
3089 if (!hci_ev_skb_pull(hdev, skb, HCI_EV_INQUIRY_RESULT,
3090 flex_array_size(ev, info, ev->num)))
3093 bt_dev_dbg(hdev, "num %d", ev->num);
3098 if (hci_dev_test_flag(hdev, HCI_PERIODIC_INQ))
3103 for (i = 0; i < ev->num; i++) {
3104 struct inquiry_info *info = &ev->info[i];
3107 bacpy(&data.bdaddr, &info->bdaddr);
3108 data.pscan_rep_mode = info->pscan_rep_mode;
3109 data.pscan_period_mode = info->pscan_period_mode;
3110 data.pscan_mode = info->pscan_mode;
3111 memcpy(data.dev_class, info->dev_class, 3);
3112 data.clock_offset = info->clock_offset;
3113 data.rssi = HCI_RSSI_INVALID;
3114 data.ssp_mode = 0x00;
3116 flags = hci_inquiry_cache_update(hdev, &data, false);
3118 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
3119 info->dev_class, HCI_RSSI_INVALID,
3120 flags, NULL, 0, NULL, 0, 0);
3123 hci_dev_unlock(hdev);
3126 static void hci_conn_complete_evt(struct hci_dev *hdev, void *data,
3127 struct sk_buff *skb)
3129 struct hci_ev_conn_complete *ev = data;
3130 struct hci_conn *conn;
3131 u8 status = ev->status;
3133 bt_dev_dbg(hdev, "status 0x%2.2x", status);
3137 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr);
3139 /* In case of error status and there is no connection pending
3140 * just unlock as there is nothing to cleanup.
3145 /* Connection may not exist if auto-connected. Check the bredr
3146 * allowlist to see if this device is allowed to auto connect.
3147 * If link is an ACL type, create a connection class
3150 * Auto-connect will only occur if the event filter is
3151 * programmed with a given address. Right now, event filter is
3152 * only used during suspend.
3154 if (ev->link_type == ACL_LINK &&
3155 hci_bdaddr_list_lookup_with_flags(&hdev->accept_list,
3158 conn = hci_conn_add(hdev, ev->link_type, &ev->bdaddr,
3161 bt_dev_err(hdev, "no memory for new conn");
3165 if (ev->link_type != SCO_LINK)
3168 conn = hci_conn_hash_lookup_ba(hdev, ESCO_LINK,
3173 conn->type = SCO_LINK;
3177 /* The HCI_Connection_Complete event is only sent once per connection.
3178 * Processing it more than once per connection can corrupt kernel memory.
3180 * As the connection handle is set here for the first time, it indicates
3181 * whether the connection is already set up.
3183 if (conn->handle != HCI_CONN_HANDLE_UNSET) {
3184 bt_dev_err(hdev, "Ignoring HCI_Connection_Complete for existing connection");
3189 conn->handle = __le16_to_cpu(ev->handle);
3190 if (conn->handle > HCI_CONN_HANDLE_MAX) {
3191 bt_dev_err(hdev, "Invalid handle: 0x%4.4x > 0x%4.4x",
3192 conn->handle, HCI_CONN_HANDLE_MAX);
3193 status = HCI_ERROR_INVALID_PARAMETERS;
3197 if (conn->type == ACL_LINK) {
3198 conn->state = BT_CONFIG;
3199 hci_conn_hold(conn);
3201 if (!conn->out && !hci_conn_ssp_enabled(conn) &&
3202 !hci_find_link_key(hdev, &ev->bdaddr))
3203 conn->disc_timeout = HCI_PAIRING_TIMEOUT;
3205 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
3207 conn->state = BT_CONNECTED;
3209 hci_debugfs_create_conn(conn);
3210 hci_conn_add_sysfs(conn);
3212 if (test_bit(HCI_AUTH, &hdev->flags))
3213 set_bit(HCI_CONN_AUTH, &conn->flags);
3215 if (test_bit(HCI_ENCRYPT, &hdev->flags))
3216 set_bit(HCI_CONN_ENCRYPT, &conn->flags);
3218 /* Get remote features */
3219 if (conn->type == ACL_LINK) {
3220 struct hci_cp_read_remote_features cp;
3221 cp.handle = ev->handle;
3222 hci_send_cmd(hdev, HCI_OP_READ_REMOTE_FEATURES,
3225 hci_update_scan(hdev);
3228 /* Set packet type for incoming connection */
3229 if (!conn->out && hdev->hci_ver < BLUETOOTH_VER_2_0) {
3230 struct hci_cp_change_conn_ptype cp;
3231 cp.handle = ev->handle;
3232 cp.pkt_type = cpu_to_le16(conn->pkt_type);
3233 hci_send_cmd(hdev, HCI_OP_CHANGE_CONN_PTYPE, sizeof(cp),
3238 if (conn->type == ACL_LINK)
3239 hci_sco_setup(conn, ev->status);
3243 hci_conn_failed(conn, status);
3244 } else if (ev->link_type == SCO_LINK) {
3245 switch (conn->setting & SCO_AIRMODE_MASK) {
3246 case SCO_AIRMODE_CVSD:
3248 hdev->notify(hdev, HCI_NOTIFY_ENABLE_SCO_CVSD);
3252 hci_connect_cfm(conn, status);
3256 hci_dev_unlock(hdev);
3258 hci_conn_check_pending(hdev);
3261 static void hci_reject_conn(struct hci_dev *hdev, bdaddr_t *bdaddr)
3263 struct hci_cp_reject_conn_req cp;
3265 bacpy(&cp.bdaddr, bdaddr);
3266 cp.reason = HCI_ERROR_REJ_BAD_ADDR;
3267 hci_send_cmd(hdev, HCI_OP_REJECT_CONN_REQ, sizeof(cp), &cp);
3270 static void hci_conn_request_evt(struct hci_dev *hdev, void *data,
3271 struct sk_buff *skb)
3273 struct hci_ev_conn_request *ev = data;
3274 int mask = hdev->link_mode;
3275 struct inquiry_entry *ie;
3276 struct hci_conn *conn;
3279 bt_dev_dbg(hdev, "bdaddr %pMR type 0x%x", &ev->bdaddr, ev->link_type);
3281 mask |= hci_proto_connect_ind(hdev, &ev->bdaddr, ev->link_type,
3284 if (!(mask & HCI_LM_ACCEPT)) {
3285 hci_reject_conn(hdev, &ev->bdaddr);
3291 if (hci_bdaddr_list_lookup(&hdev->reject_list, &ev->bdaddr,
3293 hci_reject_conn(hdev, &ev->bdaddr);
3297 /* Require HCI_CONNECTABLE or an accept list entry to accept the
3298 * connection. These features are only touched through mgmt so
3299 * only do the checks if HCI_MGMT is set.
3301 if (hci_dev_test_flag(hdev, HCI_MGMT) &&
3302 !hci_dev_test_flag(hdev, HCI_CONNECTABLE) &&
3303 !hci_bdaddr_list_lookup_with_flags(&hdev->accept_list, &ev->bdaddr,
3305 hci_reject_conn(hdev, &ev->bdaddr);
3309 /* Connection accepted */
3311 ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
3313 memcpy(ie->data.dev_class, ev->dev_class, 3);
3315 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type,
3318 conn = hci_conn_add(hdev, ev->link_type, &ev->bdaddr,
3321 bt_dev_err(hdev, "no memory for new connection");
3326 memcpy(conn->dev_class, ev->dev_class, 3);
3328 hci_dev_unlock(hdev);
3330 if (ev->link_type == ACL_LINK ||
3331 (!(flags & HCI_PROTO_DEFER) && !lmp_esco_capable(hdev))) {
3332 struct hci_cp_accept_conn_req cp;
3333 conn->state = BT_CONNECT;
3335 bacpy(&cp.bdaddr, &ev->bdaddr);
3337 if (lmp_rswitch_capable(hdev) && (mask & HCI_LM_MASTER))
3338 cp.role = 0x00; /* Become central */
3340 cp.role = 0x01; /* Remain peripheral */
3342 hci_send_cmd(hdev, HCI_OP_ACCEPT_CONN_REQ, sizeof(cp), &cp);
3343 } else if (!(flags & HCI_PROTO_DEFER)) {
3344 struct hci_cp_accept_sync_conn_req cp;
3345 conn->state = BT_CONNECT;
3347 bacpy(&cp.bdaddr, &ev->bdaddr);
3348 cp.pkt_type = cpu_to_le16(conn->pkt_type);
3350 cp.tx_bandwidth = cpu_to_le32(0x00001f40);
3351 cp.rx_bandwidth = cpu_to_le32(0x00001f40);
3352 cp.max_latency = cpu_to_le16(0xffff);
3353 cp.content_format = cpu_to_le16(hdev->voice_setting);
3354 cp.retrans_effort = 0xff;
3356 hci_send_cmd(hdev, HCI_OP_ACCEPT_SYNC_CONN_REQ, sizeof(cp),
3359 conn->state = BT_CONNECT2;
3360 hci_connect_cfm(conn, 0);
3365 hci_dev_unlock(hdev);
3368 static u8 hci_to_mgmt_reason(u8 err)
3371 case HCI_ERROR_CONNECTION_TIMEOUT:
3372 return MGMT_DEV_DISCONN_TIMEOUT;
3373 case HCI_ERROR_REMOTE_USER_TERM:
3374 case HCI_ERROR_REMOTE_LOW_RESOURCES:
3375 case HCI_ERROR_REMOTE_POWER_OFF:
3376 return MGMT_DEV_DISCONN_REMOTE;
3377 case HCI_ERROR_LOCAL_HOST_TERM:
3378 return MGMT_DEV_DISCONN_LOCAL_HOST;
3380 return MGMT_DEV_DISCONN_UNKNOWN;
3384 static void hci_disconn_complete_evt(struct hci_dev *hdev, void *data,
3385 struct sk_buff *skb)
3387 struct hci_ev_disconn_complete *ev = data;
3389 struct hci_conn_params *params;
3390 struct hci_conn *conn;
3391 bool mgmt_connected;
3393 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
3397 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3402 mgmt_disconnect_failed(hdev, &conn->dst, conn->type,
3403 conn->dst_type, ev->status);
3407 conn->state = BT_CLOSED;
3409 mgmt_connected = test_and_clear_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags);
3411 if (test_bit(HCI_CONN_AUTH_FAILURE, &conn->flags))
3412 reason = MGMT_DEV_DISCONN_AUTH_FAILURE;
3414 reason = hci_to_mgmt_reason(ev->reason);
3416 mgmt_device_disconnected(hdev, &conn->dst, conn->type, conn->dst_type,
3417 reason, mgmt_connected);
3419 if (conn->type == ACL_LINK) {
3420 if (test_and_clear_bit(HCI_CONN_FLUSH_KEY, &conn->flags))
3421 hci_remove_link_key(hdev, &conn->dst);
3423 hci_update_scan(hdev);
3426 params = hci_conn_params_lookup(hdev, &conn->dst, conn->dst_type);
3428 switch (params->auto_connect) {
3429 case HCI_AUTO_CONN_LINK_LOSS:
3430 if (ev->reason != HCI_ERROR_CONNECTION_TIMEOUT)
3434 case HCI_AUTO_CONN_DIRECT:
3435 case HCI_AUTO_CONN_ALWAYS:
3436 list_del_init(¶ms->action);
3437 list_add(¶ms->action, &hdev->pend_le_conns);
3438 hci_update_passive_scan(hdev);
3446 hci_disconn_cfm(conn, ev->reason);
3448 /* Re-enable advertising if necessary, since it might
3449 * have been disabled by the connection. From the
3450 * HCI_LE_Set_Advertise_Enable command description in
3451 * the core specification (v4.0):
3452 * "The Controller shall continue advertising until the Host
3453 * issues an LE_Set_Advertise_Enable command with
3454 * Advertising_Enable set to 0x00 (Advertising is disabled)
3455 * or until a connection is created or until the Advertising
3456 * is timed out due to Directed Advertising."
3458 if (conn->type == LE_LINK && conn->role == HCI_ROLE_SLAVE) {
3459 hdev->cur_adv_instance = conn->adv_instance;
3460 hci_enable_advertising(hdev);
3466 hci_dev_unlock(hdev);
3469 static void hci_auth_complete_evt(struct hci_dev *hdev, void *data,
3470 struct sk_buff *skb)
3472 struct hci_ev_auth_complete *ev = data;
3473 struct hci_conn *conn;
3475 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
3479 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3484 clear_bit(HCI_CONN_AUTH_FAILURE, &conn->flags);
3486 if (!hci_conn_ssp_enabled(conn) &&
3487 test_bit(HCI_CONN_REAUTH_PEND, &conn->flags)) {
3488 bt_dev_info(hdev, "re-auth of legacy device is not possible.");
3490 set_bit(HCI_CONN_AUTH, &conn->flags);
3491 conn->sec_level = conn->pending_sec_level;
3494 if (ev->status == HCI_ERROR_PIN_OR_KEY_MISSING)
3495 set_bit(HCI_CONN_AUTH_FAILURE, &conn->flags);
3497 mgmt_auth_failed(conn, ev->status);
3500 clear_bit(HCI_CONN_AUTH_PEND, &conn->flags);
3501 clear_bit(HCI_CONN_REAUTH_PEND, &conn->flags);
3503 if (conn->state == BT_CONFIG) {
3504 if (!ev->status && hci_conn_ssp_enabled(conn)) {
3505 struct hci_cp_set_conn_encrypt cp;
3506 cp.handle = ev->handle;
3508 hci_send_cmd(hdev, HCI_OP_SET_CONN_ENCRYPT, sizeof(cp),
3511 conn->state = BT_CONNECTED;
3512 hci_connect_cfm(conn, ev->status);
3513 hci_conn_drop(conn);
3516 hci_auth_cfm(conn, ev->status);
3518 hci_conn_hold(conn);
3519 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
3520 hci_conn_drop(conn);
3523 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) {
3525 struct hci_cp_set_conn_encrypt cp;
3526 cp.handle = ev->handle;
3528 hci_send_cmd(hdev, HCI_OP_SET_CONN_ENCRYPT, sizeof(cp),
3531 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
3532 hci_encrypt_cfm(conn, ev->status);
3537 hci_dev_unlock(hdev);
3540 static void hci_remote_name_evt(struct hci_dev *hdev, void *data,
3541 struct sk_buff *skb)
3543 struct hci_ev_remote_name *ev = data;
3544 struct hci_conn *conn;
3546 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
3548 hci_conn_check_pending(hdev);
3552 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
3554 if (!hci_dev_test_flag(hdev, HCI_MGMT))
3557 if (ev->status == 0)
3558 hci_check_pending_name(hdev, conn, &ev->bdaddr, ev->name,
3559 strnlen(ev->name, HCI_MAX_NAME_LENGTH));
3561 hci_check_pending_name(hdev, conn, &ev->bdaddr, NULL, 0);
3567 if (!hci_outgoing_auth_needed(hdev, conn))
3570 if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->flags)) {
3571 struct hci_cp_auth_requested cp;
3573 set_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags);
3575 cp.handle = __cpu_to_le16(conn->handle);
3576 hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED, sizeof(cp), &cp);
3580 hci_dev_unlock(hdev);
3583 static void hci_encrypt_change_evt(struct hci_dev *hdev, void *data,
3584 struct sk_buff *skb)
3586 struct hci_ev_encrypt_change *ev = data;
3587 struct hci_conn *conn;
3589 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
3593 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3599 /* Encryption implies authentication */
3600 set_bit(HCI_CONN_AUTH, &conn->flags);
3601 set_bit(HCI_CONN_ENCRYPT, &conn->flags);
3602 conn->sec_level = conn->pending_sec_level;
3604 /* P-256 authentication key implies FIPS */
3605 if (conn->key_type == HCI_LK_AUTH_COMBINATION_P256)
3606 set_bit(HCI_CONN_FIPS, &conn->flags);
3608 if ((conn->type == ACL_LINK && ev->encrypt == 0x02) ||
3609 conn->type == LE_LINK)
3610 set_bit(HCI_CONN_AES_CCM, &conn->flags);
3612 clear_bit(HCI_CONN_ENCRYPT, &conn->flags);
3613 clear_bit(HCI_CONN_AES_CCM, &conn->flags);
3617 /* We should disregard the current RPA and generate a new one
3618 * whenever the encryption procedure fails.
3620 if (ev->status && conn->type == LE_LINK) {
3621 hci_dev_set_flag(hdev, HCI_RPA_EXPIRED);
3622 hci_adv_instances_set_rpa_expired(hdev, true);
3625 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
3627 /* Check link security requirements are met */
3628 if (!hci_conn_check_link_mode(conn))
3629 ev->status = HCI_ERROR_AUTH_FAILURE;
3631 if (ev->status && conn->state == BT_CONNECTED) {
3632 if (ev->status == HCI_ERROR_PIN_OR_KEY_MISSING)
3633 set_bit(HCI_CONN_AUTH_FAILURE, &conn->flags);
3635 /* Notify upper layers so they can cleanup before
3638 hci_encrypt_cfm(conn, ev->status);
3639 hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE);
3640 hci_conn_drop(conn);
3644 /* Try reading the encryption key size for encrypted ACL links */
3645 if (!ev->status && ev->encrypt && conn->type == ACL_LINK) {
3646 struct hci_cp_read_enc_key_size cp;
3648 /* Only send HCI_Read_Encryption_Key_Size if the
3649 * controller really supports it. If it doesn't, assume
3650 * the default size (16).
3652 if (!(hdev->commands[20] & 0x10)) {
3653 conn->enc_key_size = HCI_LINK_KEY_SIZE;
3657 cp.handle = cpu_to_le16(conn->handle);
3658 if (hci_send_cmd(hdev, HCI_OP_READ_ENC_KEY_SIZE,
3660 bt_dev_err(hdev, "sending read key size failed");
3661 conn->enc_key_size = HCI_LINK_KEY_SIZE;
3668 /* Set the default Authenticated Payload Timeout after
3669 * an LE Link is established. As per Core Spec v5.0, Vol 2, Part B
3670 * Section 3.3, the HCI command WRITE_AUTH_PAYLOAD_TIMEOUT should be
3671 * sent when the link is active and Encryption is enabled, the conn
3672 * type can be either LE or ACL and controller must support LMP Ping.
3673 * Ensure for AES-CCM encryption as well.
3675 if (test_bit(HCI_CONN_ENCRYPT, &conn->flags) &&
3676 test_bit(HCI_CONN_AES_CCM, &conn->flags) &&
3677 ((conn->type == ACL_LINK && lmp_ping_capable(hdev)) ||
3678 (conn->type == LE_LINK && (hdev->le_features[0] & HCI_LE_PING)))) {
3679 struct hci_cp_write_auth_payload_to cp;
3681 cp.handle = cpu_to_le16(conn->handle);
3682 cp.timeout = cpu_to_le16(hdev->auth_payload_timeout);
3683 hci_send_cmd(conn->hdev, HCI_OP_WRITE_AUTH_PAYLOAD_TO,
3688 hci_encrypt_cfm(conn, ev->status);
3691 hci_dev_unlock(hdev);
3694 static void hci_change_link_key_complete_evt(struct hci_dev *hdev, void *data,
3695 struct sk_buff *skb)
3697 struct hci_ev_change_link_key_complete *ev = data;
3698 struct hci_conn *conn;
3700 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
3704 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3707 set_bit(HCI_CONN_SECURE, &conn->flags);
3709 clear_bit(HCI_CONN_AUTH_PEND, &conn->flags);
3711 hci_key_change_cfm(conn, ev->status);
3714 hci_dev_unlock(hdev);
3717 static void hci_remote_features_evt(struct hci_dev *hdev, void *data,
3718 struct sk_buff *skb)
3720 struct hci_ev_remote_features *ev = data;
3721 struct hci_conn *conn;
3723 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
3727 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3732 memcpy(conn->features[0], ev->features, 8);
3734 if (conn->state != BT_CONFIG)
3737 if (!ev->status && lmp_ext_feat_capable(hdev) &&
3738 lmp_ext_feat_capable(conn)) {
3739 struct hci_cp_read_remote_ext_features cp;
3740 cp.handle = ev->handle;
3742 hci_send_cmd(hdev, HCI_OP_READ_REMOTE_EXT_FEATURES,
3747 if (!ev->status && !test_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags)) {
3748 struct hci_cp_remote_name_req cp;
3749 memset(&cp, 0, sizeof(cp));
3750 bacpy(&cp.bdaddr, &conn->dst);
3751 cp.pscan_rep_mode = 0x02;
3752 hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp);
3753 } else if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
3754 mgmt_device_connected(hdev, conn, NULL, 0);
3756 if (!hci_outgoing_auth_needed(hdev, conn)) {
3757 conn->state = BT_CONNECTED;
3758 hci_connect_cfm(conn, ev->status);
3759 hci_conn_drop(conn);
3763 hci_dev_unlock(hdev);
3766 static inline void handle_cmd_cnt_and_timer(struct hci_dev *hdev, u8 ncmd)
3768 cancel_delayed_work(&hdev->cmd_timer);
3771 if (!test_bit(HCI_RESET, &hdev->flags)) {
3773 cancel_delayed_work(&hdev->ncmd_timer);
3774 atomic_set(&hdev->cmd_cnt, 1);
3776 if (!hci_dev_test_flag(hdev, HCI_CMD_DRAIN_WORKQUEUE))
3777 queue_delayed_work(hdev->workqueue, &hdev->ncmd_timer,
3784 static u8 hci_cc_le_read_buffer_size_v2(struct hci_dev *hdev, void *data,
3785 struct sk_buff *skb)
3787 struct hci_rp_le_read_buffer_size_v2 *rp = data;
3789 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
3794 hdev->le_mtu = __le16_to_cpu(rp->acl_mtu);
3795 hdev->le_pkts = rp->acl_max_pkt;
3796 hdev->iso_mtu = __le16_to_cpu(rp->iso_mtu);
3797 hdev->iso_pkts = rp->iso_max_pkt;
3799 hdev->le_cnt = hdev->le_pkts;
3800 hdev->iso_cnt = hdev->iso_pkts;
3802 BT_DBG("%s acl mtu %d:%d iso mtu %d:%d", hdev->name, hdev->acl_mtu,
3803 hdev->acl_pkts, hdev->iso_mtu, hdev->iso_pkts);
3808 static u8 hci_cc_le_set_cig_params(struct hci_dev *hdev, void *data,
3809 struct sk_buff *skb)
3811 struct hci_rp_le_set_cig_params *rp = data;
3812 struct hci_conn *conn;
3815 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
3820 while ((conn = hci_conn_hash_lookup_cig(hdev, rp->cig_id))) {
3821 conn->state = BT_CLOSED;
3822 hci_connect_cfm(conn, rp->status);
3830 list_for_each_entry_rcu(conn, &hdev->conn_hash.list, list) {
3831 if (conn->type != ISO_LINK || conn->iso_qos.cig != rp->cig_id ||
3832 conn->state == BT_CONNECTED)
3835 conn->handle = __le16_to_cpu(rp->handle[i++]);
3837 bt_dev_dbg(hdev, "%p handle 0x%4.4x link %p", conn,
3838 conn->handle, conn->link);
3840 /* Create CIS if LE is already connected */
3841 if (conn->link && conn->link->state == BT_CONNECTED) {
3843 hci_le_create_cis(conn->link);
3847 if (i == rp->num_handles)
3854 hci_dev_unlock(hdev);
3859 static u8 hci_cc_le_setup_iso_path(struct hci_dev *hdev, void *data,
3860 struct sk_buff *skb)
3862 struct hci_rp_le_setup_iso_path *rp = data;
3863 struct hci_cp_le_setup_iso_path *cp;
3864 struct hci_conn *conn;
3866 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
3868 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SETUP_ISO_PATH);
3874 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
3879 hci_connect_cfm(conn, rp->status);
3884 switch (cp->direction) {
3885 /* Input (Host to Controller) */
3887 /* Only confirm connection if output only */
3888 if (conn->iso_qos.out.sdu && !conn->iso_qos.in.sdu)
3889 hci_connect_cfm(conn, rp->status);
3891 /* Output (Controller to Host) */
3893 /* Confirm connection since conn->iso_qos is always configured
3896 hci_connect_cfm(conn, rp->status);
3901 hci_dev_unlock(hdev);
3905 static void hci_cs_le_create_big(struct hci_dev *hdev, u8 status)
3907 bt_dev_dbg(hdev, "status 0x%2.2x", status);
3910 static u8 hci_cc_set_per_adv_param(struct hci_dev *hdev, void *data,
3911 struct sk_buff *skb)
3913 struct hci_ev_status *rp = data;
3914 struct hci_cp_le_set_per_adv_params *cp;
3916 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
3921 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_PER_ADV_PARAMS);
3925 /* TODO: set the conn state */
3929 static u8 hci_cc_le_set_per_adv_enable(struct hci_dev *hdev, void *data,
3930 struct sk_buff *skb)
3932 struct hci_ev_status *rp = data;
3935 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
3940 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_PER_ADV_ENABLE);
3947 hci_dev_set_flag(hdev, HCI_LE_PER_ADV);
3949 hci_dev_clear_flag(hdev, HCI_LE_PER_ADV);
3951 hci_dev_unlock(hdev);
3956 #define HCI_CC_VL(_op, _func, _min, _max) \
3964 #define HCI_CC(_op, _func, _len) \
3965 HCI_CC_VL(_op, _func, _len, _len)
3967 #define HCI_CC_STATUS(_op, _func) \
3968 HCI_CC(_op, _func, sizeof(struct hci_ev_status))
3970 static const struct hci_cc {
3972 u8 (*func)(struct hci_dev *hdev, void *data, struct sk_buff *skb);
3975 } hci_cc_table[] = {
3976 HCI_CC_STATUS(HCI_OP_INQUIRY_CANCEL, hci_cc_inquiry_cancel),
3977 HCI_CC_STATUS(HCI_OP_PERIODIC_INQ, hci_cc_periodic_inq),
3978 HCI_CC_STATUS(HCI_OP_EXIT_PERIODIC_INQ, hci_cc_exit_periodic_inq),
3979 HCI_CC_STATUS(HCI_OP_REMOTE_NAME_REQ_CANCEL,
3980 hci_cc_remote_name_req_cancel),
3981 HCI_CC(HCI_OP_ROLE_DISCOVERY, hci_cc_role_discovery,
3982 sizeof(struct hci_rp_role_discovery)),
3983 HCI_CC(HCI_OP_READ_LINK_POLICY, hci_cc_read_link_policy,
3984 sizeof(struct hci_rp_read_link_policy)),
3985 HCI_CC(HCI_OP_WRITE_LINK_POLICY, hci_cc_write_link_policy,
3986 sizeof(struct hci_rp_write_link_policy)),
3987 HCI_CC(HCI_OP_READ_DEF_LINK_POLICY, hci_cc_read_def_link_policy,
3988 sizeof(struct hci_rp_read_def_link_policy)),
3989 HCI_CC_STATUS(HCI_OP_WRITE_DEF_LINK_POLICY,
3990 hci_cc_write_def_link_policy),
3991 HCI_CC_STATUS(HCI_OP_RESET, hci_cc_reset),
3992 HCI_CC(HCI_OP_READ_STORED_LINK_KEY, hci_cc_read_stored_link_key,
3993 sizeof(struct hci_rp_read_stored_link_key)),
3994 HCI_CC(HCI_OP_DELETE_STORED_LINK_KEY, hci_cc_delete_stored_link_key,
3995 sizeof(struct hci_rp_delete_stored_link_key)),
3996 HCI_CC_STATUS(HCI_OP_WRITE_LOCAL_NAME, hci_cc_write_local_name),
3997 HCI_CC(HCI_OP_READ_LOCAL_NAME, hci_cc_read_local_name,
3998 sizeof(struct hci_rp_read_local_name)),
3999 HCI_CC_STATUS(HCI_OP_WRITE_AUTH_ENABLE, hci_cc_write_auth_enable),
4000 HCI_CC_STATUS(HCI_OP_WRITE_ENCRYPT_MODE, hci_cc_write_encrypt_mode),
4001 HCI_CC_STATUS(HCI_OP_WRITE_SCAN_ENABLE, hci_cc_write_scan_enable),
4002 HCI_CC_STATUS(HCI_OP_SET_EVENT_FLT, hci_cc_set_event_filter),
4003 HCI_CC(HCI_OP_READ_CLASS_OF_DEV, hci_cc_read_class_of_dev,
4004 sizeof(struct hci_rp_read_class_of_dev)),
4005 HCI_CC_STATUS(HCI_OP_WRITE_CLASS_OF_DEV, hci_cc_write_class_of_dev),
4006 HCI_CC(HCI_OP_READ_VOICE_SETTING, hci_cc_read_voice_setting,
4007 sizeof(struct hci_rp_read_voice_setting)),
4008 HCI_CC_STATUS(HCI_OP_WRITE_VOICE_SETTING, hci_cc_write_voice_setting),
4009 HCI_CC(HCI_OP_READ_NUM_SUPPORTED_IAC, hci_cc_read_num_supported_iac,
4010 sizeof(struct hci_rp_read_num_supported_iac)),
4011 HCI_CC_STATUS(HCI_OP_WRITE_SSP_MODE, hci_cc_write_ssp_mode),
4012 HCI_CC_STATUS(HCI_OP_WRITE_SC_SUPPORT, hci_cc_write_sc_support),
4013 HCI_CC(HCI_OP_READ_AUTH_PAYLOAD_TO, hci_cc_read_auth_payload_timeout,
4014 sizeof(struct hci_rp_read_auth_payload_to)),
4015 HCI_CC(HCI_OP_WRITE_AUTH_PAYLOAD_TO, hci_cc_write_auth_payload_timeout,
4016 sizeof(struct hci_rp_write_auth_payload_to)),
4017 HCI_CC(HCI_OP_READ_LOCAL_VERSION, hci_cc_read_local_version,
4018 sizeof(struct hci_rp_read_local_version)),
4019 HCI_CC(HCI_OP_READ_LOCAL_COMMANDS, hci_cc_read_local_commands,
4020 sizeof(struct hci_rp_read_local_commands)),
4021 HCI_CC(HCI_OP_READ_LOCAL_FEATURES, hci_cc_read_local_features,
4022 sizeof(struct hci_rp_read_local_features)),
4023 HCI_CC(HCI_OP_READ_LOCAL_EXT_FEATURES, hci_cc_read_local_ext_features,
4024 sizeof(struct hci_rp_read_local_ext_features)),
4025 HCI_CC(HCI_OP_READ_BUFFER_SIZE, hci_cc_read_buffer_size,
4026 sizeof(struct hci_rp_read_buffer_size)),
4027 HCI_CC(HCI_OP_READ_BD_ADDR, hci_cc_read_bd_addr,
4028 sizeof(struct hci_rp_read_bd_addr)),
4029 HCI_CC(HCI_OP_READ_LOCAL_PAIRING_OPTS, hci_cc_read_local_pairing_opts,
4030 sizeof(struct hci_rp_read_local_pairing_opts)),
4031 HCI_CC(HCI_OP_READ_PAGE_SCAN_ACTIVITY, hci_cc_read_page_scan_activity,
4032 sizeof(struct hci_rp_read_page_scan_activity)),
4033 HCI_CC_STATUS(HCI_OP_WRITE_PAGE_SCAN_ACTIVITY,
4034 hci_cc_write_page_scan_activity),
4035 HCI_CC(HCI_OP_READ_PAGE_SCAN_TYPE, hci_cc_read_page_scan_type,
4036 sizeof(struct hci_rp_read_page_scan_type)),
4037 HCI_CC_STATUS(HCI_OP_WRITE_PAGE_SCAN_TYPE, hci_cc_write_page_scan_type),
4038 HCI_CC(HCI_OP_READ_DATA_BLOCK_SIZE, hci_cc_read_data_block_size,
4039 sizeof(struct hci_rp_read_data_block_size)),
4040 HCI_CC(HCI_OP_READ_FLOW_CONTROL_MODE, hci_cc_read_flow_control_mode,
4041 sizeof(struct hci_rp_read_flow_control_mode)),
4042 HCI_CC(HCI_OP_READ_LOCAL_AMP_INFO, hci_cc_read_local_amp_info,
4043 sizeof(struct hci_rp_read_local_amp_info)),
4044 HCI_CC(HCI_OP_READ_CLOCK, hci_cc_read_clock,
4045 sizeof(struct hci_rp_read_clock)),
4046 HCI_CC(HCI_OP_READ_ENC_KEY_SIZE, hci_cc_read_enc_key_size,
4047 sizeof(struct hci_rp_read_enc_key_size)),
4048 HCI_CC(HCI_OP_READ_INQ_RSP_TX_POWER, hci_cc_read_inq_rsp_tx_power,
4049 sizeof(struct hci_rp_read_inq_rsp_tx_power)),
4050 HCI_CC(HCI_OP_READ_DEF_ERR_DATA_REPORTING,
4051 hci_cc_read_def_err_data_reporting,
4052 sizeof(struct hci_rp_read_def_err_data_reporting)),
4053 HCI_CC_STATUS(HCI_OP_WRITE_DEF_ERR_DATA_REPORTING,
4054 hci_cc_write_def_err_data_reporting),
4055 HCI_CC(HCI_OP_PIN_CODE_REPLY, hci_cc_pin_code_reply,
4056 sizeof(struct hci_rp_pin_code_reply)),
4057 HCI_CC(HCI_OP_PIN_CODE_NEG_REPLY, hci_cc_pin_code_neg_reply,
4058 sizeof(struct hci_rp_pin_code_neg_reply)),
4059 HCI_CC(HCI_OP_READ_LOCAL_OOB_DATA, hci_cc_read_local_oob_data,
4060 sizeof(struct hci_rp_read_local_oob_data)),
4061 HCI_CC(HCI_OP_READ_LOCAL_OOB_EXT_DATA, hci_cc_read_local_oob_ext_data,
4062 sizeof(struct hci_rp_read_local_oob_ext_data)),
4063 HCI_CC(HCI_OP_LE_READ_BUFFER_SIZE, hci_cc_le_read_buffer_size,
4064 sizeof(struct hci_rp_le_read_buffer_size)),
4065 HCI_CC(HCI_OP_LE_READ_LOCAL_FEATURES, hci_cc_le_read_local_features,
4066 sizeof(struct hci_rp_le_read_local_features)),
4067 HCI_CC(HCI_OP_LE_READ_ADV_TX_POWER, hci_cc_le_read_adv_tx_power,
4068 sizeof(struct hci_rp_le_read_adv_tx_power)),
4069 HCI_CC(HCI_OP_USER_CONFIRM_REPLY, hci_cc_user_confirm_reply,
4070 sizeof(struct hci_rp_user_confirm_reply)),
4071 HCI_CC(HCI_OP_USER_CONFIRM_NEG_REPLY, hci_cc_user_confirm_neg_reply,
4072 sizeof(struct hci_rp_user_confirm_reply)),
4073 HCI_CC(HCI_OP_USER_PASSKEY_REPLY, hci_cc_user_passkey_reply,
4074 sizeof(struct hci_rp_user_confirm_reply)),
4075 HCI_CC(HCI_OP_USER_PASSKEY_NEG_REPLY, hci_cc_user_passkey_neg_reply,
4076 sizeof(struct hci_rp_user_confirm_reply)),
4077 HCI_CC_STATUS(HCI_OP_LE_SET_RANDOM_ADDR, hci_cc_le_set_random_addr),
4078 HCI_CC_STATUS(HCI_OP_LE_SET_ADV_ENABLE, hci_cc_le_set_adv_enable),
4079 HCI_CC_STATUS(HCI_OP_LE_SET_SCAN_PARAM, hci_cc_le_set_scan_param),
4080 HCI_CC_STATUS(HCI_OP_LE_SET_SCAN_ENABLE, hci_cc_le_set_scan_enable),
4081 HCI_CC(HCI_OP_LE_READ_ACCEPT_LIST_SIZE,
4082 hci_cc_le_read_accept_list_size,
4083 sizeof(struct hci_rp_le_read_accept_list_size)),
4084 HCI_CC_STATUS(HCI_OP_LE_CLEAR_ACCEPT_LIST, hci_cc_le_clear_accept_list),
4085 HCI_CC_STATUS(HCI_OP_LE_ADD_TO_ACCEPT_LIST,
4086 hci_cc_le_add_to_accept_list),
4087 HCI_CC_STATUS(HCI_OP_LE_DEL_FROM_ACCEPT_LIST,
4088 hci_cc_le_del_from_accept_list),
4089 HCI_CC(HCI_OP_LE_READ_SUPPORTED_STATES, hci_cc_le_read_supported_states,
4090 sizeof(struct hci_rp_le_read_supported_states)),
4091 HCI_CC(HCI_OP_LE_READ_DEF_DATA_LEN, hci_cc_le_read_def_data_len,
4092 sizeof(struct hci_rp_le_read_def_data_len)),
4093 HCI_CC_STATUS(HCI_OP_LE_WRITE_DEF_DATA_LEN,
4094 hci_cc_le_write_def_data_len),
4095 HCI_CC_STATUS(HCI_OP_LE_ADD_TO_RESOLV_LIST,
4096 hci_cc_le_add_to_resolv_list),
4097 HCI_CC_STATUS(HCI_OP_LE_DEL_FROM_RESOLV_LIST,
4098 hci_cc_le_del_from_resolv_list),
4099 HCI_CC_STATUS(HCI_OP_LE_CLEAR_RESOLV_LIST,
4100 hci_cc_le_clear_resolv_list),
4101 HCI_CC(HCI_OP_LE_READ_RESOLV_LIST_SIZE, hci_cc_le_read_resolv_list_size,
4102 sizeof(struct hci_rp_le_read_resolv_list_size)),
4103 HCI_CC_STATUS(HCI_OP_LE_SET_ADDR_RESOLV_ENABLE,
4104 hci_cc_le_set_addr_resolution_enable),
4105 HCI_CC(HCI_OP_LE_READ_MAX_DATA_LEN, hci_cc_le_read_max_data_len,
4106 sizeof(struct hci_rp_le_read_max_data_len)),
4107 HCI_CC_STATUS(HCI_OP_WRITE_LE_HOST_SUPPORTED,
4108 hci_cc_write_le_host_supported),
4109 HCI_CC_STATUS(HCI_OP_LE_SET_ADV_PARAM, hci_cc_set_adv_param),
4110 HCI_CC(HCI_OP_READ_RSSI, hci_cc_read_rssi,
4111 sizeof(struct hci_rp_read_rssi)),
4112 HCI_CC(HCI_OP_READ_TX_POWER, hci_cc_read_tx_power,
4113 sizeof(struct hci_rp_read_tx_power)),
4114 HCI_CC_STATUS(HCI_OP_WRITE_SSP_DEBUG_MODE, hci_cc_write_ssp_debug_mode),
4115 HCI_CC_STATUS(HCI_OP_LE_SET_EXT_SCAN_PARAMS,
4116 hci_cc_le_set_ext_scan_param),
4117 HCI_CC_STATUS(HCI_OP_LE_SET_EXT_SCAN_ENABLE,
4118 hci_cc_le_set_ext_scan_enable),
4119 HCI_CC_STATUS(HCI_OP_LE_SET_DEFAULT_PHY, hci_cc_le_set_default_phy),
4120 HCI_CC(HCI_OP_LE_READ_NUM_SUPPORTED_ADV_SETS,
4121 hci_cc_le_read_num_adv_sets,
4122 sizeof(struct hci_rp_le_read_num_supported_adv_sets)),
4123 HCI_CC(HCI_OP_LE_SET_EXT_ADV_PARAMS, hci_cc_set_ext_adv_param,
4124 sizeof(struct hci_rp_le_set_ext_adv_params)),
4125 HCI_CC_STATUS(HCI_OP_LE_SET_EXT_ADV_ENABLE,
4126 hci_cc_le_set_ext_adv_enable),
4127 HCI_CC_STATUS(HCI_OP_LE_SET_ADV_SET_RAND_ADDR,
4128 hci_cc_le_set_adv_set_random_addr),
4129 HCI_CC_STATUS(HCI_OP_LE_REMOVE_ADV_SET, hci_cc_le_remove_adv_set),
4130 HCI_CC_STATUS(HCI_OP_LE_CLEAR_ADV_SETS, hci_cc_le_clear_adv_sets),
4131 HCI_CC_STATUS(HCI_OP_LE_SET_PER_ADV_PARAMS, hci_cc_set_per_adv_param),
4132 HCI_CC_STATUS(HCI_OP_LE_SET_PER_ADV_ENABLE,
4133 hci_cc_le_set_per_adv_enable),
4134 HCI_CC(HCI_OP_LE_READ_TRANSMIT_POWER, hci_cc_le_read_transmit_power,
4135 sizeof(struct hci_rp_le_read_transmit_power)),
4136 HCI_CC_STATUS(HCI_OP_LE_SET_PRIVACY_MODE, hci_cc_le_set_privacy_mode),
4137 HCI_CC(HCI_OP_LE_READ_BUFFER_SIZE_V2, hci_cc_le_read_buffer_size_v2,
4138 sizeof(struct hci_rp_le_read_buffer_size_v2)),
4139 HCI_CC_VL(HCI_OP_LE_SET_CIG_PARAMS, hci_cc_le_set_cig_params,
4140 sizeof(struct hci_rp_le_set_cig_params), HCI_MAX_EVENT_SIZE),
4141 HCI_CC(HCI_OP_LE_SETUP_ISO_PATH, hci_cc_le_setup_iso_path,
4142 sizeof(struct hci_rp_le_setup_iso_path)),
4145 static u8 hci_cc_func(struct hci_dev *hdev, const struct hci_cc *cc,
4146 struct sk_buff *skb)
4150 if (skb->len < cc->min_len) {
4151 bt_dev_err(hdev, "unexpected cc 0x%4.4x length: %u < %u",
4152 cc->op, skb->len, cc->min_len);
4153 return HCI_ERROR_UNSPECIFIED;
4156 /* Just warn if the length is over max_len size it still be possible to
4157 * partially parse the cc so leave to callback to decide if that is
4160 if (skb->len > cc->max_len)
4161 bt_dev_warn(hdev, "unexpected cc 0x%4.4x length: %u > %u",
4162 cc->op, skb->len, cc->max_len);
4164 data = hci_cc_skb_pull(hdev, skb, cc->op, cc->min_len);
4166 return HCI_ERROR_UNSPECIFIED;
4168 return cc->func(hdev, data, skb);
4171 static void hci_cmd_complete_evt(struct hci_dev *hdev, void *data,
4172 struct sk_buff *skb, u16 *opcode, u8 *status,
4173 hci_req_complete_t *req_complete,
4174 hci_req_complete_skb_t *req_complete_skb)
4176 struct hci_ev_cmd_complete *ev = data;
4179 *opcode = __le16_to_cpu(ev->opcode);
4181 bt_dev_dbg(hdev, "opcode 0x%4.4x", *opcode);
4183 for (i = 0; i < ARRAY_SIZE(hci_cc_table); i++) {
4184 if (hci_cc_table[i].op == *opcode) {
4185 *status = hci_cc_func(hdev, &hci_cc_table[i], skb);
4190 if (i == ARRAY_SIZE(hci_cc_table)) {
4191 /* Unknown opcode, assume byte 0 contains the status, so
4192 * that e.g. __hci_cmd_sync() properly returns errors
4193 * for vendor specific commands send by HCI drivers.
4194 * If a vendor doesn't actually follow this convention we may
4195 * need to introduce a vendor CC table in order to properly set
4198 *status = skb->data[0];
4201 handle_cmd_cnt_and_timer(hdev, ev->ncmd);
4203 hci_req_cmd_complete(hdev, *opcode, *status, req_complete,
4206 if (hci_dev_test_flag(hdev, HCI_CMD_PENDING)) {
4208 "unexpected event for opcode 0x%4.4x", *opcode);
4212 if (atomic_read(&hdev->cmd_cnt) && !skb_queue_empty(&hdev->cmd_q))
4213 queue_work(hdev->workqueue, &hdev->cmd_work);
4216 static void hci_cs_le_create_cis(struct hci_dev *hdev, u8 status)
4218 struct hci_cp_le_create_cis *cp;
4221 bt_dev_dbg(hdev, "status 0x%2.2x", status);
4226 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_CREATE_CIS);
4232 /* Remove connection if command failed */
4233 for (i = 0; cp->num_cis; cp->num_cis--, i++) {
4234 struct hci_conn *conn;
4237 handle = __le16_to_cpu(cp->cis[i].cis_handle);
4239 conn = hci_conn_hash_lookup_handle(hdev, handle);
4241 conn->state = BT_CLOSED;
4242 hci_connect_cfm(conn, status);
4247 hci_dev_unlock(hdev);
4250 #define HCI_CS(_op, _func) \
4256 static const struct hci_cs {
4258 void (*func)(struct hci_dev *hdev, __u8 status);
4259 } hci_cs_table[] = {
4260 HCI_CS(HCI_OP_INQUIRY, hci_cs_inquiry),
4261 HCI_CS(HCI_OP_CREATE_CONN, hci_cs_create_conn),
4262 HCI_CS(HCI_OP_DISCONNECT, hci_cs_disconnect),
4263 HCI_CS(HCI_OP_ADD_SCO, hci_cs_add_sco),
4264 HCI_CS(HCI_OP_AUTH_REQUESTED, hci_cs_auth_requested),
4265 HCI_CS(HCI_OP_SET_CONN_ENCRYPT, hci_cs_set_conn_encrypt),
4266 HCI_CS(HCI_OP_REMOTE_NAME_REQ, hci_cs_remote_name_req),
4267 HCI_CS(HCI_OP_READ_REMOTE_FEATURES, hci_cs_read_remote_features),
4268 HCI_CS(HCI_OP_READ_REMOTE_EXT_FEATURES,
4269 hci_cs_read_remote_ext_features),
4270 HCI_CS(HCI_OP_SETUP_SYNC_CONN, hci_cs_setup_sync_conn),
4271 HCI_CS(HCI_OP_ENHANCED_SETUP_SYNC_CONN,
4272 hci_cs_enhanced_setup_sync_conn),
4273 HCI_CS(HCI_OP_SNIFF_MODE, hci_cs_sniff_mode),
4274 HCI_CS(HCI_OP_EXIT_SNIFF_MODE, hci_cs_exit_sniff_mode),
4275 HCI_CS(HCI_OP_SWITCH_ROLE, hci_cs_switch_role),
4276 HCI_CS(HCI_OP_LE_CREATE_CONN, hci_cs_le_create_conn),
4277 HCI_CS(HCI_OP_LE_READ_REMOTE_FEATURES, hci_cs_le_read_remote_features),
4278 HCI_CS(HCI_OP_LE_START_ENC, hci_cs_le_start_enc),
4279 HCI_CS(HCI_OP_LE_EXT_CREATE_CONN, hci_cs_le_ext_create_conn),
4280 HCI_CS(HCI_OP_LE_CREATE_CIS, hci_cs_le_create_cis),
4281 HCI_CS(HCI_OP_LE_CREATE_BIG, hci_cs_le_create_big),
4284 static void hci_cmd_status_evt(struct hci_dev *hdev, void *data,
4285 struct sk_buff *skb, u16 *opcode, u8 *status,
4286 hci_req_complete_t *req_complete,
4287 hci_req_complete_skb_t *req_complete_skb)
4289 struct hci_ev_cmd_status *ev = data;
4292 *opcode = __le16_to_cpu(ev->opcode);
4293 *status = ev->status;
4295 bt_dev_dbg(hdev, "opcode 0x%4.4x", *opcode);
4297 for (i = 0; i < ARRAY_SIZE(hci_cs_table); i++) {
4298 if (hci_cs_table[i].op == *opcode) {
4299 hci_cs_table[i].func(hdev, ev->status);
4304 handle_cmd_cnt_and_timer(hdev, ev->ncmd);
4306 /* Indicate request completion if the command failed. Also, if
4307 * we're not waiting for a special event and we get a success
4308 * command status we should try to flag the request as completed
4309 * (since for this kind of commands there will not be a command
4312 if (ev->status || (hdev->sent_cmd && !hci_skb_event(hdev->sent_cmd))) {
4313 hci_req_cmd_complete(hdev, *opcode, ev->status, req_complete,
4315 if (hci_dev_test_flag(hdev, HCI_CMD_PENDING)) {
4316 bt_dev_err(hdev, "unexpected event for opcode 0x%4.4x",
4322 if (atomic_read(&hdev->cmd_cnt) && !skb_queue_empty(&hdev->cmd_q))
4323 queue_work(hdev->workqueue, &hdev->cmd_work);
4326 static void hci_hardware_error_evt(struct hci_dev *hdev, void *data,
4327 struct sk_buff *skb)
4329 struct hci_ev_hardware_error *ev = data;
4331 bt_dev_dbg(hdev, "code 0x%2.2x", ev->code);
4333 hdev->hw_error_code = ev->code;
4335 queue_work(hdev->req_workqueue, &hdev->error_reset);
4338 static void hci_role_change_evt(struct hci_dev *hdev, void *data,
4339 struct sk_buff *skb)
4341 struct hci_ev_role_change *ev = data;
4342 struct hci_conn *conn;
4344 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
4348 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
4351 conn->role = ev->role;
4353 clear_bit(HCI_CONN_RSWITCH_PEND, &conn->flags);
4355 hci_role_switch_cfm(conn, ev->status, ev->role);
4358 hci_dev_unlock(hdev);
4361 static void hci_num_comp_pkts_evt(struct hci_dev *hdev, void *data,
4362 struct sk_buff *skb)
4364 struct hci_ev_num_comp_pkts *ev = data;
4367 if (!hci_ev_skb_pull(hdev, skb, HCI_EV_NUM_COMP_PKTS,
4368 flex_array_size(ev, handles, ev->num)))
4371 if (hdev->flow_ctl_mode != HCI_FLOW_CTL_MODE_PACKET_BASED) {
4372 bt_dev_err(hdev, "wrong event for mode %d", hdev->flow_ctl_mode);
4376 bt_dev_dbg(hdev, "num %d", ev->num);
4378 for (i = 0; i < ev->num; i++) {
4379 struct hci_comp_pkts_info *info = &ev->handles[i];
4380 struct hci_conn *conn;
4381 __u16 handle, count;
4383 handle = __le16_to_cpu(info->handle);
4384 count = __le16_to_cpu(info->count);
4386 conn = hci_conn_hash_lookup_handle(hdev, handle);
4390 conn->sent -= count;
4392 switch (conn->type) {
4394 hdev->acl_cnt += count;
4395 if (hdev->acl_cnt > hdev->acl_pkts)
4396 hdev->acl_cnt = hdev->acl_pkts;
4400 if (hdev->le_pkts) {
4401 hdev->le_cnt += count;
4402 if (hdev->le_cnt > hdev->le_pkts)
4403 hdev->le_cnt = hdev->le_pkts;
4405 hdev->acl_cnt += count;
4406 if (hdev->acl_cnt > hdev->acl_pkts)
4407 hdev->acl_cnt = hdev->acl_pkts;
4412 hdev->sco_cnt += count;
4413 if (hdev->sco_cnt > hdev->sco_pkts)
4414 hdev->sco_cnt = hdev->sco_pkts;
4418 if (hdev->iso_pkts) {
4419 hdev->iso_cnt += count;
4420 if (hdev->iso_cnt > hdev->iso_pkts)
4421 hdev->iso_cnt = hdev->iso_pkts;
4422 } else if (hdev->le_pkts) {
4423 hdev->le_cnt += count;
4424 if (hdev->le_cnt > hdev->le_pkts)
4425 hdev->le_cnt = hdev->le_pkts;
4427 hdev->acl_cnt += count;
4428 if (hdev->acl_cnt > hdev->acl_pkts)
4429 hdev->acl_cnt = hdev->acl_pkts;
4434 bt_dev_err(hdev, "unknown type %d conn %p",
4440 queue_work(hdev->workqueue, &hdev->tx_work);
4443 static struct hci_conn *__hci_conn_lookup_handle(struct hci_dev *hdev,
4446 struct hci_chan *chan;
4448 switch (hdev->dev_type) {
4450 return hci_conn_hash_lookup_handle(hdev, handle);
4452 chan = hci_chan_lookup_handle(hdev, handle);
4457 bt_dev_err(hdev, "unknown dev_type %d", hdev->dev_type);
4464 static void hci_num_comp_blocks_evt(struct hci_dev *hdev, void *data,
4465 struct sk_buff *skb)
4467 struct hci_ev_num_comp_blocks *ev = data;
4470 if (!hci_ev_skb_pull(hdev, skb, HCI_EV_NUM_COMP_BLOCKS,
4471 flex_array_size(ev, handles, ev->num_hndl)))
4474 if (hdev->flow_ctl_mode != HCI_FLOW_CTL_MODE_BLOCK_BASED) {
4475 bt_dev_err(hdev, "wrong event for mode %d",
4476 hdev->flow_ctl_mode);
4480 bt_dev_dbg(hdev, "num_blocks %d num_hndl %d", ev->num_blocks,
4483 for (i = 0; i < ev->num_hndl; i++) {
4484 struct hci_comp_blocks_info *info = &ev->handles[i];
4485 struct hci_conn *conn = NULL;
4486 __u16 handle, block_count;
4488 handle = __le16_to_cpu(info->handle);
4489 block_count = __le16_to_cpu(info->blocks);
4491 conn = __hci_conn_lookup_handle(hdev, handle);
4495 conn->sent -= block_count;
4497 switch (conn->type) {
4500 hdev->block_cnt += block_count;
4501 if (hdev->block_cnt > hdev->num_blocks)
4502 hdev->block_cnt = hdev->num_blocks;
4506 bt_dev_err(hdev, "unknown type %d conn %p",
4512 queue_work(hdev->workqueue, &hdev->tx_work);
4515 static void hci_mode_change_evt(struct hci_dev *hdev, void *data,
4516 struct sk_buff *skb)
4518 struct hci_ev_mode_change *ev = data;
4519 struct hci_conn *conn;
4521 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
4525 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
4527 conn->mode = ev->mode;
4529 if (!test_and_clear_bit(HCI_CONN_MODE_CHANGE_PEND,
4531 if (conn->mode == HCI_CM_ACTIVE)
4532 set_bit(HCI_CONN_POWER_SAVE, &conn->flags);
4534 clear_bit(HCI_CONN_POWER_SAVE, &conn->flags);
4537 if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags))
4538 hci_sco_setup(conn, ev->status);
4541 hci_dev_unlock(hdev);
4544 static void hci_pin_code_request_evt(struct hci_dev *hdev, void *data,
4545 struct sk_buff *skb)
4547 struct hci_ev_pin_code_req *ev = data;
4548 struct hci_conn *conn;
4550 bt_dev_dbg(hdev, "");
4554 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
4558 if (conn->state == BT_CONNECTED) {
4559 hci_conn_hold(conn);
4560 conn->disc_timeout = HCI_PAIRING_TIMEOUT;
4561 hci_conn_drop(conn);
4564 if (!hci_dev_test_flag(hdev, HCI_BONDABLE) &&
4565 !test_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags)) {
4566 hci_send_cmd(hdev, HCI_OP_PIN_CODE_NEG_REPLY,
4567 sizeof(ev->bdaddr), &ev->bdaddr);
4568 } else if (hci_dev_test_flag(hdev, HCI_MGMT)) {
4571 if (conn->pending_sec_level == BT_SECURITY_HIGH)
4576 mgmt_pin_code_request(hdev, &ev->bdaddr, secure);
4580 hci_dev_unlock(hdev);
4583 static void conn_set_key(struct hci_conn *conn, u8 key_type, u8 pin_len)
4585 if (key_type == HCI_LK_CHANGED_COMBINATION)
4588 conn->pin_length = pin_len;
4589 conn->key_type = key_type;
4592 case HCI_LK_LOCAL_UNIT:
4593 case HCI_LK_REMOTE_UNIT:
4594 case HCI_LK_DEBUG_COMBINATION:
4596 case HCI_LK_COMBINATION:
4598 conn->pending_sec_level = BT_SECURITY_HIGH;
4600 conn->pending_sec_level = BT_SECURITY_MEDIUM;
4602 case HCI_LK_UNAUTH_COMBINATION_P192:
4603 case HCI_LK_UNAUTH_COMBINATION_P256:
4604 conn->pending_sec_level = BT_SECURITY_MEDIUM;
4606 case HCI_LK_AUTH_COMBINATION_P192:
4607 conn->pending_sec_level = BT_SECURITY_HIGH;
4609 case HCI_LK_AUTH_COMBINATION_P256:
4610 conn->pending_sec_level = BT_SECURITY_FIPS;
4615 static void hci_link_key_request_evt(struct hci_dev *hdev, void *data,
4616 struct sk_buff *skb)
4618 struct hci_ev_link_key_req *ev = data;
4619 struct hci_cp_link_key_reply cp;
4620 struct hci_conn *conn;
4621 struct link_key *key;
4623 bt_dev_dbg(hdev, "");
4625 if (!hci_dev_test_flag(hdev, HCI_MGMT))
4630 key = hci_find_link_key(hdev, &ev->bdaddr);
4632 bt_dev_dbg(hdev, "link key not found for %pMR", &ev->bdaddr);
4636 bt_dev_dbg(hdev, "found key type %u for %pMR", key->type, &ev->bdaddr);
4638 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
4640 clear_bit(HCI_CONN_NEW_LINK_KEY, &conn->flags);
4642 if ((key->type == HCI_LK_UNAUTH_COMBINATION_P192 ||
4643 key->type == HCI_LK_UNAUTH_COMBINATION_P256) &&
4644 conn->auth_type != 0xff && (conn->auth_type & 0x01)) {
4645 bt_dev_dbg(hdev, "ignoring unauthenticated key");
4649 if (key->type == HCI_LK_COMBINATION && key->pin_len < 16 &&
4650 (conn->pending_sec_level == BT_SECURITY_HIGH ||
4651 conn->pending_sec_level == BT_SECURITY_FIPS)) {
4652 bt_dev_dbg(hdev, "ignoring key unauthenticated for high security");
4656 conn_set_key(conn, key->type, key->pin_len);
4659 bacpy(&cp.bdaddr, &ev->bdaddr);
4660 memcpy(cp.link_key, key->val, HCI_LINK_KEY_SIZE);
4662 hci_send_cmd(hdev, HCI_OP_LINK_KEY_REPLY, sizeof(cp), &cp);
4664 hci_dev_unlock(hdev);
4669 hci_send_cmd(hdev, HCI_OP_LINK_KEY_NEG_REPLY, 6, &ev->bdaddr);
4670 hci_dev_unlock(hdev);
4673 static void hci_link_key_notify_evt(struct hci_dev *hdev, void *data,
4674 struct sk_buff *skb)
4676 struct hci_ev_link_key_notify *ev = data;
4677 struct hci_conn *conn;
4678 struct link_key *key;
4682 bt_dev_dbg(hdev, "");
4686 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
4690 hci_conn_hold(conn);
4691 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
4692 hci_conn_drop(conn);
4694 set_bit(HCI_CONN_NEW_LINK_KEY, &conn->flags);
4695 conn_set_key(conn, ev->key_type, conn->pin_length);
4697 if (!hci_dev_test_flag(hdev, HCI_MGMT))
4700 key = hci_add_link_key(hdev, conn, &ev->bdaddr, ev->link_key,
4701 ev->key_type, pin_len, &persistent);
4705 /* Update connection information since adding the key will have
4706 * fixed up the type in the case of changed combination keys.
4708 if (ev->key_type == HCI_LK_CHANGED_COMBINATION)
4709 conn_set_key(conn, key->type, key->pin_len);
4711 mgmt_new_link_key(hdev, key, persistent);
4713 /* Keep debug keys around only if the HCI_KEEP_DEBUG_KEYS flag
4714 * is set. If it's not set simply remove the key from the kernel
4715 * list (we've still notified user space about it but with
4716 * store_hint being 0).
4718 if (key->type == HCI_LK_DEBUG_COMBINATION &&
4719 !hci_dev_test_flag(hdev, HCI_KEEP_DEBUG_KEYS)) {
4720 list_del_rcu(&key->list);
4721 kfree_rcu(key, rcu);
4726 clear_bit(HCI_CONN_FLUSH_KEY, &conn->flags);
4728 set_bit(HCI_CONN_FLUSH_KEY, &conn->flags);
4731 hci_dev_unlock(hdev);
4734 static void hci_clock_offset_evt(struct hci_dev *hdev, void *data,
4735 struct sk_buff *skb)
4737 struct hci_ev_clock_offset *ev = data;
4738 struct hci_conn *conn;
4740 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
4744 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
4745 if (conn && !ev->status) {
4746 struct inquiry_entry *ie;
4748 ie = hci_inquiry_cache_lookup(hdev, &conn->dst);
4750 ie->data.clock_offset = ev->clock_offset;
4751 ie->timestamp = jiffies;
4755 hci_dev_unlock(hdev);
4758 static void hci_pkt_type_change_evt(struct hci_dev *hdev, void *data,
4759 struct sk_buff *skb)
4761 struct hci_ev_pkt_type_change *ev = data;
4762 struct hci_conn *conn;
4764 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
4768 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
4769 if (conn && !ev->status)
4770 conn->pkt_type = __le16_to_cpu(ev->pkt_type);
4772 hci_dev_unlock(hdev);
4775 static void hci_pscan_rep_mode_evt(struct hci_dev *hdev, void *data,
4776 struct sk_buff *skb)
4778 struct hci_ev_pscan_rep_mode *ev = data;
4779 struct inquiry_entry *ie;
4781 bt_dev_dbg(hdev, "");
4785 ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
4787 ie->data.pscan_rep_mode = ev->pscan_rep_mode;
4788 ie->timestamp = jiffies;
4791 hci_dev_unlock(hdev);
4794 static void hci_inquiry_result_with_rssi_evt(struct hci_dev *hdev, void *edata,
4795 struct sk_buff *skb)
4797 struct hci_ev_inquiry_result_rssi *ev = edata;
4798 struct inquiry_data data;
4801 bt_dev_dbg(hdev, "num_rsp %d", ev->num);
4806 if (hci_dev_test_flag(hdev, HCI_PERIODIC_INQ))
4811 if (skb->len == array_size(ev->num,
4812 sizeof(struct inquiry_info_rssi_pscan))) {
4813 struct inquiry_info_rssi_pscan *info;
4815 for (i = 0; i < ev->num; i++) {
4818 info = hci_ev_skb_pull(hdev, skb,
4819 HCI_EV_INQUIRY_RESULT_WITH_RSSI,
4822 bt_dev_err(hdev, "Malformed HCI Event: 0x%2.2x",
4823 HCI_EV_INQUIRY_RESULT_WITH_RSSI);
4827 bacpy(&data.bdaddr, &info->bdaddr);
4828 data.pscan_rep_mode = info->pscan_rep_mode;
4829 data.pscan_period_mode = info->pscan_period_mode;
4830 data.pscan_mode = info->pscan_mode;
4831 memcpy(data.dev_class, info->dev_class, 3);
4832 data.clock_offset = info->clock_offset;
4833 data.rssi = info->rssi;
4834 data.ssp_mode = 0x00;
4836 flags = hci_inquiry_cache_update(hdev, &data, false);
4838 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
4839 info->dev_class, info->rssi,
4840 flags, NULL, 0, NULL, 0, 0);
4842 } else if (skb->len == array_size(ev->num,
4843 sizeof(struct inquiry_info_rssi))) {
4844 struct inquiry_info_rssi *info;
4846 for (i = 0; i < ev->num; i++) {
4849 info = hci_ev_skb_pull(hdev, skb,
4850 HCI_EV_INQUIRY_RESULT_WITH_RSSI,
4853 bt_dev_err(hdev, "Malformed HCI Event: 0x%2.2x",
4854 HCI_EV_INQUIRY_RESULT_WITH_RSSI);
4858 bacpy(&data.bdaddr, &info->bdaddr);
4859 data.pscan_rep_mode = info->pscan_rep_mode;
4860 data.pscan_period_mode = info->pscan_period_mode;
4861 data.pscan_mode = 0x00;
4862 memcpy(data.dev_class, info->dev_class, 3);
4863 data.clock_offset = info->clock_offset;
4864 data.rssi = info->rssi;
4865 data.ssp_mode = 0x00;
4867 flags = hci_inquiry_cache_update(hdev, &data, false);
4869 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
4870 info->dev_class, info->rssi,
4871 flags, NULL, 0, NULL, 0, 0);
4874 bt_dev_err(hdev, "Malformed HCI Event: 0x%2.2x",
4875 HCI_EV_INQUIRY_RESULT_WITH_RSSI);
4878 hci_dev_unlock(hdev);
4881 static void hci_remote_ext_features_evt(struct hci_dev *hdev, void *data,
4882 struct sk_buff *skb)
4884 struct hci_ev_remote_ext_features *ev = data;
4885 struct hci_conn *conn;
4887 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
4891 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
4895 if (ev->page < HCI_MAX_PAGES)
4896 memcpy(conn->features[ev->page], ev->features, 8);
4898 if (!ev->status && ev->page == 0x01) {
4899 struct inquiry_entry *ie;
4901 ie = hci_inquiry_cache_lookup(hdev, &conn->dst);
4903 ie->data.ssp_mode = (ev->features[0] & LMP_HOST_SSP);
4905 if (ev->features[0] & LMP_HOST_SSP) {
4906 set_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
4908 /* It is mandatory by the Bluetooth specification that
4909 * Extended Inquiry Results are only used when Secure
4910 * Simple Pairing is enabled, but some devices violate
4913 * To make these devices work, the internal SSP
4914 * enabled flag needs to be cleared if the remote host
4915 * features do not indicate SSP support */
4916 clear_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
4919 if (ev->features[0] & LMP_HOST_SC)
4920 set_bit(HCI_CONN_SC_ENABLED, &conn->flags);
4923 if (conn->state != BT_CONFIG)
4926 if (!ev->status && !test_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags)) {
4927 struct hci_cp_remote_name_req cp;
4928 memset(&cp, 0, sizeof(cp));
4929 bacpy(&cp.bdaddr, &conn->dst);
4930 cp.pscan_rep_mode = 0x02;
4931 hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp);
4932 } else if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
4933 mgmt_device_connected(hdev, conn, NULL, 0);
4935 if (!hci_outgoing_auth_needed(hdev, conn)) {
4936 conn->state = BT_CONNECTED;
4937 hci_connect_cfm(conn, ev->status);
4938 hci_conn_drop(conn);
4942 hci_dev_unlock(hdev);
4945 static void hci_sync_conn_complete_evt(struct hci_dev *hdev, void *data,
4946 struct sk_buff *skb)
4948 struct hci_ev_sync_conn_complete *ev = data;
4949 struct hci_conn *conn;
4950 u8 status = ev->status;
4952 switch (ev->link_type) {
4957 /* As per Core 5.3 Vol 4 Part E 7.7.35 (p.2219), Link_Type
4958 * for HCI_Synchronous_Connection_Complete is limited to
4959 * either SCO or eSCO
4961 bt_dev_err(hdev, "Ignoring connect complete event for invalid link type");
4965 bt_dev_dbg(hdev, "status 0x%2.2x", status);
4969 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr);
4971 if (ev->link_type == ESCO_LINK)
4974 /* When the link type in the event indicates SCO connection
4975 * and lookup of the connection object fails, then check
4976 * if an eSCO connection object exists.
4978 * The core limits the synchronous connections to either
4979 * SCO or eSCO. The eSCO connection is preferred and tried
4980 * to be setup first and until successfully established,
4981 * the link type will be hinted as eSCO.
4983 conn = hci_conn_hash_lookup_ba(hdev, ESCO_LINK, &ev->bdaddr);
4988 /* The HCI_Synchronous_Connection_Complete event is only sent once per connection.
4989 * Processing it more than once per connection can corrupt kernel memory.
4991 * As the connection handle is set here for the first time, it indicates
4992 * whether the connection is already set up.
4994 if (conn->handle != HCI_CONN_HANDLE_UNSET) {
4995 bt_dev_err(hdev, "Ignoring HCI_Sync_Conn_Complete event for existing connection");
5001 conn->handle = __le16_to_cpu(ev->handle);
5002 if (conn->handle > HCI_CONN_HANDLE_MAX) {
5003 bt_dev_err(hdev, "Invalid handle: 0x%4.4x > 0x%4.4x",
5004 conn->handle, HCI_CONN_HANDLE_MAX);
5005 status = HCI_ERROR_INVALID_PARAMETERS;
5006 conn->state = BT_CLOSED;
5010 conn->state = BT_CONNECTED;
5011 conn->type = ev->link_type;
5013 hci_debugfs_create_conn(conn);
5014 hci_conn_add_sysfs(conn);
5017 case 0x10: /* Connection Accept Timeout */
5018 case 0x0d: /* Connection Rejected due to Limited Resources */
5019 case 0x11: /* Unsupported Feature or Parameter Value */
5020 case 0x1c: /* SCO interval rejected */
5021 case 0x1a: /* Unsupported Remote Feature */
5022 case 0x1e: /* Invalid LMP Parameters */
5023 case 0x1f: /* Unspecified error */
5024 case 0x20: /* Unsupported LMP Parameter value */
5026 conn->pkt_type = (hdev->esco_type & SCO_ESCO_MASK) |
5027 (hdev->esco_type & EDR_ESCO_MASK);
5028 if (hci_setup_sync(conn, conn->link->handle))
5034 conn->state = BT_CLOSED;
5038 bt_dev_dbg(hdev, "SCO connected with air mode: %02x", ev->air_mode);
5039 /* Notify only in case of SCO over HCI transport data path which
5040 * is zero and non-zero value shall be non-HCI transport data path
5042 if (conn->codec.data_path == 0 && hdev->notify) {
5043 switch (ev->air_mode) {
5045 hdev->notify(hdev, HCI_NOTIFY_ENABLE_SCO_CVSD);
5048 hdev->notify(hdev, HCI_NOTIFY_ENABLE_SCO_TRANSP);
5053 hci_connect_cfm(conn, status);
5058 hci_dev_unlock(hdev);
5061 static inline size_t eir_get_length(u8 *eir, size_t eir_len)
5065 while (parsed < eir_len) {
5066 u8 field_len = eir[0];
5071 parsed += field_len + 1;
5072 eir += field_len + 1;
5078 static void hci_extended_inquiry_result_evt(struct hci_dev *hdev, void *edata,
5079 struct sk_buff *skb)
5081 struct hci_ev_ext_inquiry_result *ev = edata;
5082 struct inquiry_data data;
5086 if (!hci_ev_skb_pull(hdev, skb, HCI_EV_EXTENDED_INQUIRY_RESULT,
5087 flex_array_size(ev, info, ev->num)))
5090 bt_dev_dbg(hdev, "num %d", ev->num);
5095 if (hci_dev_test_flag(hdev, HCI_PERIODIC_INQ))
5100 for (i = 0; i < ev->num; i++) {
5101 struct extended_inquiry_info *info = &ev->info[i];
5105 bacpy(&data.bdaddr, &info->bdaddr);
5106 data.pscan_rep_mode = info->pscan_rep_mode;
5107 data.pscan_period_mode = info->pscan_period_mode;
5108 data.pscan_mode = 0x00;
5109 memcpy(data.dev_class, info->dev_class, 3);
5110 data.clock_offset = info->clock_offset;
5111 data.rssi = info->rssi;
5112 data.ssp_mode = 0x01;
5114 if (hci_dev_test_flag(hdev, HCI_MGMT))
5115 name_known = eir_get_data(info->data,
5117 EIR_NAME_COMPLETE, NULL);
5121 flags = hci_inquiry_cache_update(hdev, &data, name_known);
5123 eir_len = eir_get_length(info->data, sizeof(info->data));
5125 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
5126 info->dev_class, info->rssi,
5127 flags, info->data, eir_len, NULL, 0, 0);
5130 hci_dev_unlock(hdev);
5133 static void hci_key_refresh_complete_evt(struct hci_dev *hdev, void *data,
5134 struct sk_buff *skb)
5136 struct hci_ev_key_refresh_complete *ev = data;
5137 struct hci_conn *conn;
5139 bt_dev_dbg(hdev, "status 0x%2.2x handle 0x%4.4x", ev->status,
5140 __le16_to_cpu(ev->handle));
5144 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
5148 /* For BR/EDR the necessary steps are taken through the
5149 * auth_complete event.
5151 if (conn->type != LE_LINK)
5155 conn->sec_level = conn->pending_sec_level;
5157 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
5159 if (ev->status && conn->state == BT_CONNECTED) {
5160 hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE);
5161 hci_conn_drop(conn);
5165 if (conn->state == BT_CONFIG) {
5167 conn->state = BT_CONNECTED;
5169 hci_connect_cfm(conn, ev->status);
5170 hci_conn_drop(conn);
5172 hci_auth_cfm(conn, ev->status);
5174 hci_conn_hold(conn);
5175 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
5176 hci_conn_drop(conn);
5180 hci_dev_unlock(hdev);
5183 static u8 hci_get_auth_req(struct hci_conn *conn)
5185 /* If remote requests no-bonding follow that lead */
5186 if (conn->remote_auth == HCI_AT_NO_BONDING ||
5187 conn->remote_auth == HCI_AT_NO_BONDING_MITM)
5188 return conn->remote_auth | (conn->auth_type & 0x01);
5190 /* If both remote and local have enough IO capabilities, require
5193 if (conn->remote_cap != HCI_IO_NO_INPUT_OUTPUT &&
5194 conn->io_capability != HCI_IO_NO_INPUT_OUTPUT)
5195 return conn->remote_auth | 0x01;
5197 /* No MITM protection possible so ignore remote requirement */
5198 return (conn->remote_auth & ~0x01) | (conn->auth_type & 0x01);
5201 static u8 bredr_oob_data_present(struct hci_conn *conn)
5203 struct hci_dev *hdev = conn->hdev;
5204 struct oob_data *data;
5206 data = hci_find_remote_oob_data(hdev, &conn->dst, BDADDR_BREDR);
5210 if (bredr_sc_enabled(hdev)) {
5211 /* When Secure Connections is enabled, then just
5212 * return the present value stored with the OOB
5213 * data. The stored value contains the right present
5214 * information. However it can only be trusted when
5215 * not in Secure Connection Only mode.
5217 if (!hci_dev_test_flag(hdev, HCI_SC_ONLY))
5218 return data->present;
5220 /* When Secure Connections Only mode is enabled, then
5221 * the P-256 values are required. If they are not
5222 * available, then do not declare that OOB data is
5225 if (!memcmp(data->rand256, ZERO_KEY, 16) ||
5226 !memcmp(data->hash256, ZERO_KEY, 16))
5232 /* When Secure Connections is not enabled or actually
5233 * not supported by the hardware, then check that if
5234 * P-192 data values are present.
5236 if (!memcmp(data->rand192, ZERO_KEY, 16) ||
5237 !memcmp(data->hash192, ZERO_KEY, 16))
5243 static void hci_io_capa_request_evt(struct hci_dev *hdev, void *data,
5244 struct sk_buff *skb)
5246 struct hci_ev_io_capa_request *ev = data;
5247 struct hci_conn *conn;
5249 bt_dev_dbg(hdev, "");
5253 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
5257 hci_conn_hold(conn);
5259 if (!hci_dev_test_flag(hdev, HCI_MGMT))
5262 /* Allow pairing if we're pairable, the initiators of the
5263 * pairing or if the remote is not requesting bonding.
5265 if (hci_dev_test_flag(hdev, HCI_BONDABLE) ||
5266 test_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags) ||
5267 (conn->remote_auth & ~0x01) == HCI_AT_NO_BONDING) {
5268 struct hci_cp_io_capability_reply cp;
5270 bacpy(&cp.bdaddr, &ev->bdaddr);
5271 /* Change the IO capability from KeyboardDisplay
5272 * to DisplayYesNo as it is not supported by BT spec. */
5273 cp.capability = (conn->io_capability == 0x04) ?
5274 HCI_IO_DISPLAY_YESNO : conn->io_capability;
5276 /* If we are initiators, there is no remote information yet */
5277 if (conn->remote_auth == 0xff) {
5278 /* Request MITM protection if our IO caps allow it
5279 * except for the no-bonding case.
5281 if (conn->io_capability != HCI_IO_NO_INPUT_OUTPUT &&
5282 conn->auth_type != HCI_AT_NO_BONDING)
5283 conn->auth_type |= 0x01;
5285 conn->auth_type = hci_get_auth_req(conn);
5288 /* If we're not bondable, force one of the non-bondable
5289 * authentication requirement values.
5291 if (!hci_dev_test_flag(hdev, HCI_BONDABLE))
5292 conn->auth_type &= HCI_AT_NO_BONDING_MITM;
5294 cp.authentication = conn->auth_type;
5295 cp.oob_data = bredr_oob_data_present(conn);
5297 hci_send_cmd(hdev, HCI_OP_IO_CAPABILITY_REPLY,
5300 struct hci_cp_io_capability_neg_reply cp;
5302 bacpy(&cp.bdaddr, &ev->bdaddr);
5303 cp.reason = HCI_ERROR_PAIRING_NOT_ALLOWED;
5305 hci_send_cmd(hdev, HCI_OP_IO_CAPABILITY_NEG_REPLY,
5310 hci_dev_unlock(hdev);
5313 static void hci_io_capa_reply_evt(struct hci_dev *hdev, void *data,
5314 struct sk_buff *skb)
5316 struct hci_ev_io_capa_reply *ev = data;
5317 struct hci_conn *conn;
5319 bt_dev_dbg(hdev, "");
5323 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
5327 conn->remote_cap = ev->capability;
5328 conn->remote_auth = ev->authentication;
5331 hci_dev_unlock(hdev);
5334 static void hci_user_confirm_request_evt(struct hci_dev *hdev, void *data,
5335 struct sk_buff *skb)
5337 struct hci_ev_user_confirm_req *ev = data;
5338 int loc_mitm, rem_mitm, confirm_hint = 0;
5339 struct hci_conn *conn;
5341 bt_dev_dbg(hdev, "");
5345 if (!hci_dev_test_flag(hdev, HCI_MGMT))
5348 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
5352 loc_mitm = (conn->auth_type & 0x01);
5353 rem_mitm = (conn->remote_auth & 0x01);
5355 /* If we require MITM but the remote device can't provide that
5356 * (it has NoInputNoOutput) then reject the confirmation
5357 * request. We check the security level here since it doesn't
5358 * necessarily match conn->auth_type.
5360 if (conn->pending_sec_level > BT_SECURITY_MEDIUM &&
5361 conn->remote_cap == HCI_IO_NO_INPUT_OUTPUT) {
5362 bt_dev_dbg(hdev, "Rejecting request: remote device can't provide MITM");
5363 hci_send_cmd(hdev, HCI_OP_USER_CONFIRM_NEG_REPLY,
5364 sizeof(ev->bdaddr), &ev->bdaddr);
5368 /* If no side requires MITM protection; auto-accept */
5369 if ((!loc_mitm || conn->remote_cap == HCI_IO_NO_INPUT_OUTPUT) &&
5370 (!rem_mitm || conn->io_capability == HCI_IO_NO_INPUT_OUTPUT)) {
5372 /* If we're not the initiators request authorization to
5373 * proceed from user space (mgmt_user_confirm with
5374 * confirm_hint set to 1). The exception is if neither
5375 * side had MITM or if the local IO capability is
5376 * NoInputNoOutput, in which case we do auto-accept
5378 if (!test_bit(HCI_CONN_AUTH_PEND, &conn->flags) &&
5379 conn->io_capability != HCI_IO_NO_INPUT_OUTPUT &&
5380 (loc_mitm || rem_mitm)) {
5381 bt_dev_dbg(hdev, "Confirming auto-accept as acceptor");
5386 /* If there already exists link key in local host, leave the
5387 * decision to user space since the remote device could be
5388 * legitimate or malicious.
5390 if (hci_find_link_key(hdev, &ev->bdaddr)) {
5391 bt_dev_dbg(hdev, "Local host already has link key");
5396 BT_DBG("Auto-accept of user confirmation with %ums delay",
5397 hdev->auto_accept_delay);
5399 if (hdev->auto_accept_delay > 0) {
5400 int delay = msecs_to_jiffies(hdev->auto_accept_delay);
5401 queue_delayed_work(conn->hdev->workqueue,
5402 &conn->auto_accept_work, delay);
5406 hci_send_cmd(hdev, HCI_OP_USER_CONFIRM_REPLY,
5407 sizeof(ev->bdaddr), &ev->bdaddr);
5412 mgmt_user_confirm_request(hdev, &ev->bdaddr, ACL_LINK, 0,
5413 le32_to_cpu(ev->passkey), confirm_hint);
5416 hci_dev_unlock(hdev);
5419 static void hci_user_passkey_request_evt(struct hci_dev *hdev, void *data,
5420 struct sk_buff *skb)
5422 struct hci_ev_user_passkey_req *ev = data;
5424 bt_dev_dbg(hdev, "");
5426 if (hci_dev_test_flag(hdev, HCI_MGMT))
5427 mgmt_user_passkey_request(hdev, &ev->bdaddr, ACL_LINK, 0);
5430 static void hci_user_passkey_notify_evt(struct hci_dev *hdev, void *data,
5431 struct sk_buff *skb)
5433 struct hci_ev_user_passkey_notify *ev = data;
5434 struct hci_conn *conn;
5436 bt_dev_dbg(hdev, "");
5438 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
5442 conn->passkey_notify = __le32_to_cpu(ev->passkey);
5443 conn->passkey_entered = 0;
5445 if (hci_dev_test_flag(hdev, HCI_MGMT))
5446 mgmt_user_passkey_notify(hdev, &conn->dst, conn->type,
5447 conn->dst_type, conn->passkey_notify,
5448 conn->passkey_entered);
5451 static void hci_keypress_notify_evt(struct hci_dev *hdev, void *data,
5452 struct sk_buff *skb)
5454 struct hci_ev_keypress_notify *ev = data;
5455 struct hci_conn *conn;
5457 bt_dev_dbg(hdev, "");
5459 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
5464 case HCI_KEYPRESS_STARTED:
5465 conn->passkey_entered = 0;
5468 case HCI_KEYPRESS_ENTERED:
5469 conn->passkey_entered++;
5472 case HCI_KEYPRESS_ERASED:
5473 conn->passkey_entered--;
5476 case HCI_KEYPRESS_CLEARED:
5477 conn->passkey_entered = 0;
5480 case HCI_KEYPRESS_COMPLETED:
5484 if (hci_dev_test_flag(hdev, HCI_MGMT))
5485 mgmt_user_passkey_notify(hdev, &conn->dst, conn->type,
5486 conn->dst_type, conn->passkey_notify,
5487 conn->passkey_entered);
5490 static void hci_simple_pair_complete_evt(struct hci_dev *hdev, void *data,
5491 struct sk_buff *skb)
5493 struct hci_ev_simple_pair_complete *ev = data;
5494 struct hci_conn *conn;
5496 bt_dev_dbg(hdev, "");
5500 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
5504 /* Reset the authentication requirement to unknown */
5505 conn->remote_auth = 0xff;
5507 /* To avoid duplicate auth_failed events to user space we check
5508 * the HCI_CONN_AUTH_PEND flag which will be set if we
5509 * initiated the authentication. A traditional auth_complete
5510 * event gets always produced as initiator and is also mapped to
5511 * the mgmt_auth_failed event */
5512 if (!test_bit(HCI_CONN_AUTH_PEND, &conn->flags) && ev->status)
5513 mgmt_auth_failed(conn, ev->status);
5515 hci_conn_drop(conn);
5518 hci_dev_unlock(hdev);
5521 static void hci_remote_host_features_evt(struct hci_dev *hdev, void *data,
5522 struct sk_buff *skb)
5524 struct hci_ev_remote_host_features *ev = data;
5525 struct inquiry_entry *ie;
5526 struct hci_conn *conn;
5528 bt_dev_dbg(hdev, "");
5532 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
5534 memcpy(conn->features[1], ev->features, 8);
5536 ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
5538 ie->data.ssp_mode = (ev->features[0] & LMP_HOST_SSP);
5540 hci_dev_unlock(hdev);
5543 static void hci_remote_oob_data_request_evt(struct hci_dev *hdev, void *edata,
5544 struct sk_buff *skb)
5546 struct hci_ev_remote_oob_data_request *ev = edata;
5547 struct oob_data *data;
5549 bt_dev_dbg(hdev, "");
5553 if (!hci_dev_test_flag(hdev, HCI_MGMT))
5556 data = hci_find_remote_oob_data(hdev, &ev->bdaddr, BDADDR_BREDR);
5558 struct hci_cp_remote_oob_data_neg_reply cp;
5560 bacpy(&cp.bdaddr, &ev->bdaddr);
5561 hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_DATA_NEG_REPLY,
5566 if (bredr_sc_enabled(hdev)) {
5567 struct hci_cp_remote_oob_ext_data_reply cp;
5569 bacpy(&cp.bdaddr, &ev->bdaddr);
5570 if (hci_dev_test_flag(hdev, HCI_SC_ONLY)) {
5571 memset(cp.hash192, 0, sizeof(cp.hash192));
5572 memset(cp.rand192, 0, sizeof(cp.rand192));
5574 memcpy(cp.hash192, data->hash192, sizeof(cp.hash192));
5575 memcpy(cp.rand192, data->rand192, sizeof(cp.rand192));
5577 memcpy(cp.hash256, data->hash256, sizeof(cp.hash256));
5578 memcpy(cp.rand256, data->rand256, sizeof(cp.rand256));
5580 hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_EXT_DATA_REPLY,
5583 struct hci_cp_remote_oob_data_reply cp;
5585 bacpy(&cp.bdaddr, &ev->bdaddr);
5586 memcpy(cp.hash, data->hash192, sizeof(cp.hash));
5587 memcpy(cp.rand, data->rand192, sizeof(cp.rand));
5589 hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_DATA_REPLY,
5594 hci_dev_unlock(hdev);
5597 #if IS_ENABLED(CONFIG_BT_HS)
5598 static void hci_chan_selected_evt(struct hci_dev *hdev, void *data,
5599 struct sk_buff *skb)
5601 struct hci_ev_channel_selected *ev = data;
5602 struct hci_conn *hcon;
5604 bt_dev_dbg(hdev, "handle 0x%2.2x", ev->phy_handle);
5606 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
5610 amp_read_loc_assoc_final_data(hdev, hcon);
5613 static void hci_phy_link_complete_evt(struct hci_dev *hdev, void *data,
5614 struct sk_buff *skb)
5616 struct hci_ev_phy_link_complete *ev = data;
5617 struct hci_conn *hcon, *bredr_hcon;
5619 bt_dev_dbg(hdev, "handle 0x%2.2x status 0x%2.2x", ev->phy_handle,
5624 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
5636 bredr_hcon = hcon->amp_mgr->l2cap_conn->hcon;
5638 hcon->state = BT_CONNECTED;
5639 bacpy(&hcon->dst, &bredr_hcon->dst);
5641 hci_conn_hold(hcon);
5642 hcon->disc_timeout = HCI_DISCONN_TIMEOUT;
5643 hci_conn_drop(hcon);
5645 hci_debugfs_create_conn(hcon);
5646 hci_conn_add_sysfs(hcon);
5648 amp_physical_cfm(bredr_hcon, hcon);
5651 hci_dev_unlock(hdev);
5654 static void hci_loglink_complete_evt(struct hci_dev *hdev, void *data,
5655 struct sk_buff *skb)
5657 struct hci_ev_logical_link_complete *ev = data;
5658 struct hci_conn *hcon;
5659 struct hci_chan *hchan;
5660 struct amp_mgr *mgr;
5662 bt_dev_dbg(hdev, "log_handle 0x%4.4x phy_handle 0x%2.2x status 0x%2.2x",
5663 le16_to_cpu(ev->handle), ev->phy_handle, ev->status);
5665 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
5669 /* Create AMP hchan */
5670 hchan = hci_chan_create(hcon);
5674 hchan->handle = le16_to_cpu(ev->handle);
5677 BT_DBG("hcon %p mgr %p hchan %p", hcon, hcon->amp_mgr, hchan);
5679 mgr = hcon->amp_mgr;
5680 if (mgr && mgr->bredr_chan) {
5681 struct l2cap_chan *bredr_chan = mgr->bredr_chan;
5683 l2cap_chan_lock(bredr_chan);
5685 bredr_chan->conn->mtu = hdev->block_mtu;
5686 l2cap_logical_cfm(bredr_chan, hchan, 0);
5687 hci_conn_hold(hcon);
5689 l2cap_chan_unlock(bredr_chan);
5693 static void hci_disconn_loglink_complete_evt(struct hci_dev *hdev, void *data,
5694 struct sk_buff *skb)
5696 struct hci_ev_disconn_logical_link_complete *ev = data;
5697 struct hci_chan *hchan;
5699 bt_dev_dbg(hdev, "handle 0x%4.4x status 0x%2.2x",
5700 le16_to_cpu(ev->handle), ev->status);
5707 hchan = hci_chan_lookup_handle(hdev, le16_to_cpu(ev->handle));
5708 if (!hchan || !hchan->amp)
5711 amp_destroy_logical_link(hchan, ev->reason);
5714 hci_dev_unlock(hdev);
5717 static void hci_disconn_phylink_complete_evt(struct hci_dev *hdev, void *data,
5718 struct sk_buff *skb)
5720 struct hci_ev_disconn_phy_link_complete *ev = data;
5721 struct hci_conn *hcon;
5723 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
5730 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
5731 if (hcon && hcon->type == AMP_LINK) {
5732 hcon->state = BT_CLOSED;
5733 hci_disconn_cfm(hcon, ev->reason);
5737 hci_dev_unlock(hdev);
5741 static void le_conn_update_addr(struct hci_conn *conn, bdaddr_t *bdaddr,
5742 u8 bdaddr_type, bdaddr_t *local_rpa)
5745 conn->dst_type = bdaddr_type;
5746 conn->resp_addr_type = bdaddr_type;
5747 bacpy(&conn->resp_addr, bdaddr);
5749 /* Check if the controller has set a Local RPA then it must be
5750 * used instead or hdev->rpa.
5752 if (local_rpa && bacmp(local_rpa, BDADDR_ANY)) {
5753 conn->init_addr_type = ADDR_LE_DEV_RANDOM;
5754 bacpy(&conn->init_addr, local_rpa);
5755 } else if (hci_dev_test_flag(conn->hdev, HCI_PRIVACY)) {
5756 conn->init_addr_type = ADDR_LE_DEV_RANDOM;
5757 bacpy(&conn->init_addr, &conn->hdev->rpa);
5759 hci_copy_identity_address(conn->hdev, &conn->init_addr,
5760 &conn->init_addr_type);
5763 conn->resp_addr_type = conn->hdev->adv_addr_type;
5764 /* Check if the controller has set a Local RPA then it must be
5765 * used instead or hdev->rpa.
5767 if (local_rpa && bacmp(local_rpa, BDADDR_ANY)) {
5768 conn->resp_addr_type = ADDR_LE_DEV_RANDOM;
5769 bacpy(&conn->resp_addr, local_rpa);
5770 } else if (conn->hdev->adv_addr_type == ADDR_LE_DEV_RANDOM) {
5771 /* In case of ext adv, resp_addr will be updated in
5772 * Adv Terminated event.
5774 if (!ext_adv_capable(conn->hdev))
5775 bacpy(&conn->resp_addr,
5776 &conn->hdev->random_addr);
5778 bacpy(&conn->resp_addr, &conn->hdev->bdaddr);
5781 conn->init_addr_type = bdaddr_type;
5782 bacpy(&conn->init_addr, bdaddr);
5784 /* For incoming connections, set the default minimum
5785 * and maximum connection interval. They will be used
5786 * to check if the parameters are in range and if not
5787 * trigger the connection update procedure.
5789 conn->le_conn_min_interval = conn->hdev->le_conn_min_interval;
5790 conn->le_conn_max_interval = conn->hdev->le_conn_max_interval;
5794 static void le_conn_complete_evt(struct hci_dev *hdev, u8 status,
5795 bdaddr_t *bdaddr, u8 bdaddr_type,
5796 bdaddr_t *local_rpa, u8 role, u16 handle,
5797 u16 interval, u16 latency,
5798 u16 supervision_timeout)
5800 struct hci_conn_params *params;
5801 struct hci_conn *conn;
5802 struct smp_irk *irk;
5807 /* All controllers implicitly stop advertising in the event of a
5808 * connection, so ensure that the state bit is cleared.
5810 hci_dev_clear_flag(hdev, HCI_LE_ADV);
5812 conn = hci_conn_hash_lookup_ba(hdev, LE_LINK, bdaddr);
5814 /* In case of error status and there is no connection pending
5815 * just unlock as there is nothing to cleanup.
5820 conn = hci_conn_add(hdev, LE_LINK, bdaddr, role);
5822 bt_dev_err(hdev, "no memory for new connection");
5826 conn->dst_type = bdaddr_type;
5828 /* If we didn't have a hci_conn object previously
5829 * but we're in central role this must be something
5830 * initiated using an accept list. Since accept list based
5831 * connections are not "first class citizens" we don't
5832 * have full tracking of them. Therefore, we go ahead
5833 * with a "best effort" approach of determining the
5834 * initiator address based on the HCI_PRIVACY flag.
5837 conn->resp_addr_type = bdaddr_type;
5838 bacpy(&conn->resp_addr, bdaddr);
5839 if (hci_dev_test_flag(hdev, HCI_PRIVACY)) {
5840 conn->init_addr_type = ADDR_LE_DEV_RANDOM;
5841 bacpy(&conn->init_addr, &hdev->rpa);
5843 hci_copy_identity_address(hdev,
5845 &conn->init_addr_type);
5849 cancel_delayed_work(&conn->le_conn_timeout);
5852 /* The HCI_LE_Connection_Complete event is only sent once per connection.
5853 * Processing it more than once per connection can corrupt kernel memory.
5855 * As the connection handle is set here for the first time, it indicates
5856 * whether the connection is already set up.
5858 if (conn->handle != HCI_CONN_HANDLE_UNSET) {
5859 bt_dev_err(hdev, "Ignoring HCI_Connection_Complete for existing connection");
5863 le_conn_update_addr(conn, bdaddr, bdaddr_type, local_rpa);
5865 /* Lookup the identity address from the stored connection
5866 * address and address type.
5868 * When establishing connections to an identity address, the
5869 * connection procedure will store the resolvable random
5870 * address first. Now if it can be converted back into the
5871 * identity address, start using the identity address from
5874 irk = hci_get_irk(hdev, &conn->dst, conn->dst_type);
5876 bacpy(&conn->dst, &irk->bdaddr);
5877 conn->dst_type = irk->addr_type;
5880 conn->dst_type = ev_bdaddr_type(hdev, conn->dst_type, NULL);
5882 if (handle > HCI_CONN_HANDLE_MAX) {
5883 bt_dev_err(hdev, "Invalid handle: 0x%4.4x > 0x%4.4x", handle,
5884 HCI_CONN_HANDLE_MAX);
5885 status = HCI_ERROR_INVALID_PARAMETERS;
5888 /* All connection failure handling is taken care of by the
5889 * hci_conn_failed function which is triggered by the HCI
5890 * request completion callbacks used for connecting.
5895 if (conn->dst_type == ADDR_LE_DEV_PUBLIC)
5896 addr_type = BDADDR_LE_PUBLIC;
5898 addr_type = BDADDR_LE_RANDOM;
5900 /* Drop the connection if the device is blocked */
5901 if (hci_bdaddr_list_lookup(&hdev->reject_list, &conn->dst, addr_type)) {
5902 hci_conn_drop(conn);
5906 if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
5907 mgmt_device_connected(hdev, conn, NULL, 0);
5909 conn->sec_level = BT_SECURITY_LOW;
5910 conn->handle = handle;
5911 conn->state = BT_CONFIG;
5913 /* Store current advertising instance as connection advertising instance
5914 * when sotfware rotation is in use so it can be re-enabled when
5917 if (!ext_adv_capable(hdev))
5918 conn->adv_instance = hdev->cur_adv_instance;
5920 conn->le_conn_interval = interval;
5921 conn->le_conn_latency = latency;
5922 conn->le_supv_timeout = supervision_timeout;
5924 hci_debugfs_create_conn(conn);
5925 hci_conn_add_sysfs(conn);
5927 /* The remote features procedure is defined for central
5928 * role only. So only in case of an initiated connection
5929 * request the remote features.
5931 * If the local controller supports peripheral-initiated features
5932 * exchange, then requesting the remote features in peripheral
5933 * role is possible. Otherwise just transition into the
5934 * connected state without requesting the remote features.
5937 (hdev->le_features[0] & HCI_LE_PERIPHERAL_FEATURES)) {
5938 struct hci_cp_le_read_remote_features cp;
5940 cp.handle = __cpu_to_le16(conn->handle);
5942 hci_send_cmd(hdev, HCI_OP_LE_READ_REMOTE_FEATURES,
5945 hci_conn_hold(conn);
5947 conn->state = BT_CONNECTED;
5948 hci_connect_cfm(conn, status);
5951 params = hci_pend_le_action_lookup(&hdev->pend_le_conns, &conn->dst,
5954 list_del_init(¶ms->action);
5956 hci_conn_drop(params->conn);
5957 hci_conn_put(params->conn);
5958 params->conn = NULL;
5963 hci_update_passive_scan(hdev);
5964 hci_dev_unlock(hdev);
5967 static void hci_le_conn_complete_evt(struct hci_dev *hdev, void *data,
5968 struct sk_buff *skb)
5970 struct hci_ev_le_conn_complete *ev = data;
5972 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
5974 le_conn_complete_evt(hdev, ev->status, &ev->bdaddr, ev->bdaddr_type,
5975 NULL, ev->role, le16_to_cpu(ev->handle),
5976 le16_to_cpu(ev->interval),
5977 le16_to_cpu(ev->latency),
5978 le16_to_cpu(ev->supervision_timeout));
5981 static void hci_le_enh_conn_complete_evt(struct hci_dev *hdev, void *data,
5982 struct sk_buff *skb)
5984 struct hci_ev_le_enh_conn_complete *ev = data;
5986 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
5988 le_conn_complete_evt(hdev, ev->status, &ev->bdaddr, ev->bdaddr_type,
5989 &ev->local_rpa, ev->role, le16_to_cpu(ev->handle),
5990 le16_to_cpu(ev->interval),
5991 le16_to_cpu(ev->latency),
5992 le16_to_cpu(ev->supervision_timeout));
5995 static void hci_le_ext_adv_term_evt(struct hci_dev *hdev, void *data,
5996 struct sk_buff *skb)
5998 struct hci_evt_le_ext_adv_set_term *ev = data;
5999 struct hci_conn *conn;
6000 struct adv_info *adv, *n;
6002 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
6004 /* The Bluetooth Core 5.3 specification clearly states that this event
6005 * shall not be sent when the Host disables the advertising set. So in
6006 * case of HCI_ERROR_CANCELLED_BY_HOST, just ignore the event.
6008 * When the Host disables an advertising set, all cleanup is done via
6009 * its command callback and not needed to be duplicated here.
6011 if (ev->status == HCI_ERROR_CANCELLED_BY_HOST) {
6012 bt_dev_warn_ratelimited(hdev, "Unexpected advertising set terminated event");
6018 adv = hci_find_adv_instance(hdev, ev->handle);
6024 /* Remove advertising as it has been terminated */
6025 hci_remove_adv_instance(hdev, ev->handle);
6026 mgmt_advertising_removed(NULL, hdev, ev->handle);
6028 list_for_each_entry_safe(adv, n, &hdev->adv_instances, list) {
6033 /* We are no longer advertising, clear HCI_LE_ADV */
6034 hci_dev_clear_flag(hdev, HCI_LE_ADV);
6039 adv->enabled = false;
6041 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->conn_handle));
6043 /* Store handle in the connection so the correct advertising
6044 * instance can be re-enabled when disconnected.
6046 conn->adv_instance = ev->handle;
6048 if (hdev->adv_addr_type != ADDR_LE_DEV_RANDOM ||
6049 bacmp(&conn->resp_addr, BDADDR_ANY))
6053 bacpy(&conn->resp_addr, &hdev->random_addr);
6058 bacpy(&conn->resp_addr, &adv->random_addr);
6062 hci_dev_unlock(hdev);
6065 static void hci_le_conn_update_complete_evt(struct hci_dev *hdev, void *data,
6066 struct sk_buff *skb)
6068 struct hci_ev_le_conn_update_complete *ev = data;
6069 struct hci_conn *conn;
6071 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
6078 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
6080 conn->le_conn_interval = le16_to_cpu(ev->interval);
6081 conn->le_conn_latency = le16_to_cpu(ev->latency);
6082 conn->le_supv_timeout = le16_to_cpu(ev->supervision_timeout);
6085 hci_dev_unlock(hdev);
6088 /* This function requires the caller holds hdev->lock */
6089 static struct hci_conn *check_pending_le_conn(struct hci_dev *hdev,
6091 u8 addr_type, bool addr_resolved,
6094 struct hci_conn *conn;
6095 struct hci_conn_params *params;
6097 /* If the event is not connectable don't proceed further */
6098 if (adv_type != LE_ADV_IND && adv_type != LE_ADV_DIRECT_IND)
6101 /* Ignore if the device is blocked or hdev is suspended */
6102 if (hci_bdaddr_list_lookup(&hdev->reject_list, addr, addr_type) ||
6106 /* Most controller will fail if we try to create new connections
6107 * while we have an existing one in peripheral role.
6109 if (hdev->conn_hash.le_num_peripheral > 0 &&
6110 (!test_bit(HCI_QUIRK_VALID_LE_STATES, &hdev->quirks) ||
6111 !(hdev->le_states[3] & 0x10)))
6114 /* If we're not connectable only connect devices that we have in
6115 * our pend_le_conns list.
6117 params = hci_pend_le_action_lookup(&hdev->pend_le_conns, addr,
6122 if (!params->explicit_connect) {
6123 switch (params->auto_connect) {
6124 case HCI_AUTO_CONN_DIRECT:
6125 /* Only devices advertising with ADV_DIRECT_IND are
6126 * triggering a connection attempt. This is allowing
6127 * incoming connections from peripheral devices.
6129 if (adv_type != LE_ADV_DIRECT_IND)
6132 case HCI_AUTO_CONN_ALWAYS:
6133 /* Devices advertising with ADV_IND or ADV_DIRECT_IND
6134 * are triggering a connection attempt. This means
6135 * that incoming connections from peripheral device are
6136 * accepted and also outgoing connections to peripheral
6137 * devices are established when found.
6145 conn = hci_connect_le(hdev, addr, addr_type, addr_resolved,
6146 BT_SECURITY_LOW, hdev->def_le_autoconnect_timeout,
6148 if (!IS_ERR(conn)) {
6149 /* If HCI_AUTO_CONN_EXPLICIT is set, conn is already owned
6150 * by higher layer that tried to connect, if no then
6151 * store the pointer since we don't really have any
6152 * other owner of the object besides the params that
6153 * triggered it. This way we can abort the connection if
6154 * the parameters get removed and keep the reference
6155 * count consistent once the connection is established.
6158 if (!params->explicit_connect)
6159 params->conn = hci_conn_get(conn);
6164 switch (PTR_ERR(conn)) {
6166 /* If hci_connect() returns -EBUSY it means there is already
6167 * an LE connection attempt going on. Since controllers don't
6168 * support more than one connection attempt at the time, we
6169 * don't consider this an error case.
6173 BT_DBG("Failed to connect: err %ld", PTR_ERR(conn));
6180 static void process_adv_report(struct hci_dev *hdev, u8 type, bdaddr_t *bdaddr,
6181 u8 bdaddr_type, bdaddr_t *direct_addr,
6182 u8 direct_addr_type, s8 rssi, u8 *data, u8 len,
6183 bool ext_adv, bool ctl_time, u64 instant)
6185 struct discovery_state *d = &hdev->discovery;
6186 struct smp_irk *irk;
6187 struct hci_conn *conn;
6188 bool match, bdaddr_resolved;
6194 case LE_ADV_DIRECT_IND:
6195 case LE_ADV_SCAN_IND:
6196 case LE_ADV_NONCONN_IND:
6197 case LE_ADV_SCAN_RSP:
6200 bt_dev_err_ratelimited(hdev, "unknown advertising packet "
6201 "type: 0x%02x", type);
6205 if (!ext_adv && len > HCI_MAX_AD_LENGTH) {
6206 bt_dev_err_ratelimited(hdev, "legacy adv larger than 31 bytes");
6210 /* Find the end of the data in case the report contains padded zero
6211 * bytes at the end causing an invalid length value.
6213 * When data is NULL, len is 0 so there is no need for extra ptr
6214 * check as 'ptr < data + 0' is already false in such case.
6216 for (ptr = data; ptr < data + len && *ptr; ptr += *ptr + 1) {
6217 if (ptr + 1 + *ptr > data + len)
6221 /* Adjust for actual length. This handles the case when remote
6222 * device is advertising with incorrect data length.
6226 /* If the direct address is present, then this report is from
6227 * a LE Direct Advertising Report event. In that case it is
6228 * important to see if the address is matching the local
6229 * controller address.
6231 if (!hci_dev_test_flag(hdev, HCI_MESH) && direct_addr) {
6232 direct_addr_type = ev_bdaddr_type(hdev, direct_addr_type,
6235 /* Only resolvable random addresses are valid for these
6236 * kind of reports and others can be ignored.
6238 if (!hci_bdaddr_is_rpa(direct_addr, direct_addr_type))
6241 /* If the controller is not using resolvable random
6242 * addresses, then this report can be ignored.
6244 if (!hci_dev_test_flag(hdev, HCI_PRIVACY))
6247 /* If the local IRK of the controller does not match
6248 * with the resolvable random address provided, then
6249 * this report can be ignored.
6251 if (!smp_irk_matches(hdev, hdev->irk, direct_addr))
6255 /* Check if we need to convert to identity address */
6256 irk = hci_get_irk(hdev, bdaddr, bdaddr_type);
6258 bdaddr = &irk->bdaddr;
6259 bdaddr_type = irk->addr_type;
6262 bdaddr_type = ev_bdaddr_type(hdev, bdaddr_type, &bdaddr_resolved);
6264 /* Check if we have been requested to connect to this device.
6266 * direct_addr is set only for directed advertising reports (it is NULL
6267 * for advertising reports) and is already verified to be RPA above.
6269 conn = check_pending_le_conn(hdev, bdaddr, bdaddr_type, bdaddr_resolved,
6271 if (!ext_adv && conn && type == LE_ADV_IND && len <= HCI_MAX_AD_LENGTH) {
6272 /* Store report for later inclusion by
6273 * mgmt_device_connected
6275 memcpy(conn->le_adv_data, data, len);
6276 conn->le_adv_data_len = len;
6279 if (type == LE_ADV_NONCONN_IND || type == LE_ADV_SCAN_IND)
6280 flags = MGMT_DEV_FOUND_NOT_CONNECTABLE;
6284 /* All scan results should be sent up for Mesh systems */
6285 if (hci_dev_test_flag(hdev, HCI_MESH)) {
6286 mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL,
6287 rssi, flags, data, len, NULL, 0, instant);
6291 /* Passive scanning shouldn't trigger any device found events,
6292 * except for devices marked as CONN_REPORT for which we do send
6293 * device found events, or advertisement monitoring requested.
6295 if (hdev->le_scan_type == LE_SCAN_PASSIVE) {
6296 if (type == LE_ADV_DIRECT_IND)
6299 if (!hci_pend_le_action_lookup(&hdev->pend_le_reports,
6300 bdaddr, bdaddr_type) &&
6301 idr_is_empty(&hdev->adv_monitors_idr))
6304 mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL,
6305 rssi, flags, data, len, NULL, 0, 0);
6309 /* When receiving non-connectable or scannable undirected
6310 * advertising reports, this means that the remote device is
6311 * not connectable and then clearly indicate this in the
6312 * device found event.
6314 * When receiving a scan response, then there is no way to
6315 * know if the remote device is connectable or not. However
6316 * since scan responses are merged with a previously seen
6317 * advertising report, the flags field from that report
6320 * In the really unlikely case that a controller get confused
6321 * and just sends a scan response event, then it is marked as
6322 * not connectable as well.
6324 if (type == LE_ADV_SCAN_RSP)
6325 flags = MGMT_DEV_FOUND_NOT_CONNECTABLE;
6327 /* If there's nothing pending either store the data from this
6328 * event or send an immediate device found event if the data
6329 * should not be stored for later.
6331 if (!ext_adv && !has_pending_adv_report(hdev)) {
6332 /* If the report will trigger a SCAN_REQ store it for
6335 if (type == LE_ADV_IND || type == LE_ADV_SCAN_IND) {
6336 store_pending_adv_report(hdev, bdaddr, bdaddr_type,
6337 rssi, flags, data, len);
6341 mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL,
6342 rssi, flags, data, len, NULL, 0, 0);
6346 /* Check if the pending report is for the same device as the new one */
6347 match = (!bacmp(bdaddr, &d->last_adv_addr) &&
6348 bdaddr_type == d->last_adv_addr_type);
6350 /* If the pending data doesn't match this report or this isn't a
6351 * scan response (e.g. we got a duplicate ADV_IND) then force
6352 * sending of the pending data.
6354 if (type != LE_ADV_SCAN_RSP || !match) {
6355 /* Send out whatever is in the cache, but skip duplicates */
6357 mgmt_device_found(hdev, &d->last_adv_addr, LE_LINK,
6358 d->last_adv_addr_type, NULL,
6359 d->last_adv_rssi, d->last_adv_flags,
6361 d->last_adv_data_len, NULL, 0, 0);
6363 /* If the new report will trigger a SCAN_REQ store it for
6366 if (!ext_adv && (type == LE_ADV_IND ||
6367 type == LE_ADV_SCAN_IND)) {
6368 store_pending_adv_report(hdev, bdaddr, bdaddr_type,
6369 rssi, flags, data, len);
6373 /* The advertising reports cannot be merged, so clear
6374 * the pending report and send out a device found event.
6376 clear_pending_adv_report(hdev);
6377 mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL,
6378 rssi, flags, data, len, NULL, 0, 0);
6382 /* If we get here we've got a pending ADV_IND or ADV_SCAN_IND and
6383 * the new event is a SCAN_RSP. We can therefore proceed with
6384 * sending a merged device found event.
6386 mgmt_device_found(hdev, &d->last_adv_addr, LE_LINK,
6387 d->last_adv_addr_type, NULL, rssi, d->last_adv_flags,
6388 d->last_adv_data, d->last_adv_data_len, data, len, 0);
6389 clear_pending_adv_report(hdev);
6392 static void hci_le_adv_report_evt(struct hci_dev *hdev, void *data,
6393 struct sk_buff *skb)
6395 struct hci_ev_le_advertising_report *ev = data;
6396 u64 instant = jiffies;
6404 struct hci_ev_le_advertising_info *info;
6407 info = hci_le_ev_skb_pull(hdev, skb,
6408 HCI_EV_LE_ADVERTISING_REPORT,
6413 if (!hci_le_ev_skb_pull(hdev, skb, HCI_EV_LE_ADVERTISING_REPORT,
6417 if (info->length <= HCI_MAX_AD_LENGTH) {
6418 rssi = info->data[info->length];
6419 process_adv_report(hdev, info->type, &info->bdaddr,
6420 info->bdaddr_type, NULL, 0, rssi,
6421 info->data, info->length, false,
6424 bt_dev_err(hdev, "Dropping invalid advertising data");
6428 hci_dev_unlock(hdev);
6431 static u8 ext_evt_type_to_legacy(struct hci_dev *hdev, u16 evt_type)
6433 if (evt_type & LE_EXT_ADV_LEGACY_PDU) {
6435 case LE_LEGACY_ADV_IND:
6437 case LE_LEGACY_ADV_DIRECT_IND:
6438 return LE_ADV_DIRECT_IND;
6439 case LE_LEGACY_ADV_SCAN_IND:
6440 return LE_ADV_SCAN_IND;
6441 case LE_LEGACY_NONCONN_IND:
6442 return LE_ADV_NONCONN_IND;
6443 case LE_LEGACY_SCAN_RSP_ADV:
6444 case LE_LEGACY_SCAN_RSP_ADV_SCAN:
6445 return LE_ADV_SCAN_RSP;
6451 if (evt_type & LE_EXT_ADV_CONN_IND) {
6452 if (evt_type & LE_EXT_ADV_DIRECT_IND)
6453 return LE_ADV_DIRECT_IND;
6458 if (evt_type & LE_EXT_ADV_SCAN_RSP)
6459 return LE_ADV_SCAN_RSP;
6461 if (evt_type & LE_EXT_ADV_SCAN_IND)
6462 return LE_ADV_SCAN_IND;
6464 if (evt_type == LE_EXT_ADV_NON_CONN_IND ||
6465 evt_type & LE_EXT_ADV_DIRECT_IND)
6466 return LE_ADV_NONCONN_IND;
6469 bt_dev_err_ratelimited(hdev, "Unknown advertising packet type: 0x%02x",
6472 return LE_ADV_INVALID;
6475 static void hci_le_ext_adv_report_evt(struct hci_dev *hdev, void *data,
6476 struct sk_buff *skb)
6478 struct hci_ev_le_ext_adv_report *ev = data;
6479 u64 instant = jiffies;
6487 struct hci_ev_le_ext_adv_info *info;
6491 info = hci_le_ev_skb_pull(hdev, skb, HCI_EV_LE_EXT_ADV_REPORT,
6496 if (!hci_le_ev_skb_pull(hdev, skb, HCI_EV_LE_EXT_ADV_REPORT,
6500 evt_type = __le16_to_cpu(info->type);
6501 legacy_evt_type = ext_evt_type_to_legacy(hdev, evt_type);
6502 if (legacy_evt_type != LE_ADV_INVALID) {
6503 process_adv_report(hdev, legacy_evt_type, &info->bdaddr,
6504 info->bdaddr_type, NULL, 0,
6505 info->rssi, info->data, info->length,
6506 !(evt_type & LE_EXT_ADV_LEGACY_PDU),
6511 hci_dev_unlock(hdev);
6514 static int hci_le_pa_term_sync(struct hci_dev *hdev, __le16 handle)
6516 struct hci_cp_le_pa_term_sync cp;
6518 memset(&cp, 0, sizeof(cp));
6521 return hci_send_cmd(hdev, HCI_OP_LE_PA_TERM_SYNC, sizeof(cp), &cp);
6524 static void hci_le_pa_sync_estabilished_evt(struct hci_dev *hdev, void *data,
6525 struct sk_buff *skb)
6527 struct hci_ev_le_pa_sync_established *ev = data;
6528 int mask = hdev->link_mode;
6531 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
6538 hci_dev_clear_flag(hdev, HCI_PA_SYNC);
6540 mask |= hci_proto_connect_ind(hdev, &ev->bdaddr, ISO_LINK, &flags);
6541 if (!(mask & HCI_LM_ACCEPT))
6542 hci_le_pa_term_sync(hdev, ev->handle);
6544 hci_dev_unlock(hdev);
6547 static void hci_le_remote_feat_complete_evt(struct hci_dev *hdev, void *data,
6548 struct sk_buff *skb)
6550 struct hci_ev_le_remote_feat_complete *ev = data;
6551 struct hci_conn *conn;
6553 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
6557 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
6560 memcpy(conn->features[0], ev->features, 8);
6562 if (conn->state == BT_CONFIG) {
6565 /* If the local controller supports peripheral-initiated
6566 * features exchange, but the remote controller does
6567 * not, then it is possible that the error code 0x1a
6568 * for unsupported remote feature gets returned.
6570 * In this specific case, allow the connection to
6571 * transition into connected state and mark it as
6574 if (!conn->out && ev->status == 0x1a &&
6575 (hdev->le_features[0] & HCI_LE_PERIPHERAL_FEATURES))
6578 status = ev->status;
6580 conn->state = BT_CONNECTED;
6581 hci_connect_cfm(conn, status);
6582 hci_conn_drop(conn);
6586 hci_dev_unlock(hdev);
6589 static void hci_le_ltk_request_evt(struct hci_dev *hdev, void *data,
6590 struct sk_buff *skb)
6592 struct hci_ev_le_ltk_req *ev = data;
6593 struct hci_cp_le_ltk_reply cp;
6594 struct hci_cp_le_ltk_neg_reply neg;
6595 struct hci_conn *conn;
6596 struct smp_ltk *ltk;
6598 bt_dev_dbg(hdev, "handle 0x%4.4x", __le16_to_cpu(ev->handle));
6602 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
6606 ltk = hci_find_ltk(hdev, &conn->dst, conn->dst_type, conn->role);
6610 if (smp_ltk_is_sc(ltk)) {
6611 /* With SC both EDiv and Rand are set to zero */
6612 if (ev->ediv || ev->rand)
6615 /* For non-SC keys check that EDiv and Rand match */
6616 if (ev->ediv != ltk->ediv || ev->rand != ltk->rand)
6620 memcpy(cp.ltk, ltk->val, ltk->enc_size);
6621 memset(cp.ltk + ltk->enc_size, 0, sizeof(cp.ltk) - ltk->enc_size);
6622 cp.handle = cpu_to_le16(conn->handle);
6624 conn->pending_sec_level = smp_ltk_sec_level(ltk);
6626 conn->enc_key_size = ltk->enc_size;
6628 hci_send_cmd(hdev, HCI_OP_LE_LTK_REPLY, sizeof(cp), &cp);
6630 /* Ref. Bluetooth Core SPEC pages 1975 and 2004. STK is a
6631 * temporary key used to encrypt a connection following
6632 * pairing. It is used during the Encrypted Session Setup to
6633 * distribute the keys. Later, security can be re-established
6634 * using a distributed LTK.
6636 if (ltk->type == SMP_STK) {
6637 set_bit(HCI_CONN_STK_ENCRYPT, &conn->flags);
6638 list_del_rcu(<k->list);
6639 kfree_rcu(ltk, rcu);
6641 clear_bit(HCI_CONN_STK_ENCRYPT, &conn->flags);
6644 hci_dev_unlock(hdev);
6649 neg.handle = ev->handle;
6650 hci_send_cmd(hdev, HCI_OP_LE_LTK_NEG_REPLY, sizeof(neg), &neg);
6651 hci_dev_unlock(hdev);
6654 static void send_conn_param_neg_reply(struct hci_dev *hdev, u16 handle,
6657 struct hci_cp_le_conn_param_req_neg_reply cp;
6659 cp.handle = cpu_to_le16(handle);
6662 hci_send_cmd(hdev, HCI_OP_LE_CONN_PARAM_REQ_NEG_REPLY, sizeof(cp),
6666 static void hci_le_remote_conn_param_req_evt(struct hci_dev *hdev, void *data,
6667 struct sk_buff *skb)
6669 struct hci_ev_le_remote_conn_param_req *ev = data;
6670 struct hci_cp_le_conn_param_req_reply cp;
6671 struct hci_conn *hcon;
6672 u16 handle, min, max, latency, timeout;
6674 bt_dev_dbg(hdev, "handle 0x%4.4x", __le16_to_cpu(ev->handle));
6676 handle = le16_to_cpu(ev->handle);
6677 min = le16_to_cpu(ev->interval_min);
6678 max = le16_to_cpu(ev->interval_max);
6679 latency = le16_to_cpu(ev->latency);
6680 timeout = le16_to_cpu(ev->timeout);
6682 hcon = hci_conn_hash_lookup_handle(hdev, handle);
6683 if (!hcon || hcon->state != BT_CONNECTED)
6684 return send_conn_param_neg_reply(hdev, handle,
6685 HCI_ERROR_UNKNOWN_CONN_ID);
6687 if (hci_check_conn_params(min, max, latency, timeout))
6688 return send_conn_param_neg_reply(hdev, handle,
6689 HCI_ERROR_INVALID_LL_PARAMS);
6691 if (hcon->role == HCI_ROLE_MASTER) {
6692 struct hci_conn_params *params;
6697 params = hci_conn_params_lookup(hdev, &hcon->dst,
6700 params->conn_min_interval = min;
6701 params->conn_max_interval = max;
6702 params->conn_latency = latency;
6703 params->supervision_timeout = timeout;
6709 hci_dev_unlock(hdev);
6711 mgmt_new_conn_param(hdev, &hcon->dst, hcon->dst_type,
6712 store_hint, min, max, latency, timeout);
6715 cp.handle = ev->handle;
6716 cp.interval_min = ev->interval_min;
6717 cp.interval_max = ev->interval_max;
6718 cp.latency = ev->latency;
6719 cp.timeout = ev->timeout;
6723 hci_send_cmd(hdev, HCI_OP_LE_CONN_PARAM_REQ_REPLY, sizeof(cp), &cp);
6726 static void hci_le_direct_adv_report_evt(struct hci_dev *hdev, void *data,
6727 struct sk_buff *skb)
6729 struct hci_ev_le_direct_adv_report *ev = data;
6730 u64 instant = jiffies;
6733 if (!hci_le_ev_skb_pull(hdev, skb, HCI_EV_LE_DIRECT_ADV_REPORT,
6734 flex_array_size(ev, info, ev->num)))
6742 for (i = 0; i < ev->num; i++) {
6743 struct hci_ev_le_direct_adv_info *info = &ev->info[i];
6745 process_adv_report(hdev, info->type, &info->bdaddr,
6746 info->bdaddr_type, &info->direct_addr,
6747 info->direct_addr_type, info->rssi, NULL, 0,
6748 false, false, instant);
6751 hci_dev_unlock(hdev);
6754 static void hci_le_phy_update_evt(struct hci_dev *hdev, void *data,
6755 struct sk_buff *skb)
6757 struct hci_ev_le_phy_update_complete *ev = data;
6758 struct hci_conn *conn;
6760 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
6767 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
6771 conn->le_tx_phy = ev->tx_phy;
6772 conn->le_rx_phy = ev->rx_phy;
6775 hci_dev_unlock(hdev);
6778 static void hci_le_cis_estabilished_evt(struct hci_dev *hdev, void *data,
6779 struct sk_buff *skb)
6781 struct hci_evt_le_cis_established *ev = data;
6782 struct hci_conn *conn;
6783 u16 handle = __le16_to_cpu(ev->handle);
6785 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
6789 conn = hci_conn_hash_lookup_handle(hdev, handle);
6792 "Unable to find connection with handle 0x%4.4x",
6797 if (conn->type != ISO_LINK) {
6799 "Invalid connection link type handle 0x%4.4x",
6804 if (conn->role == HCI_ROLE_SLAVE) {
6807 memset(&interval, 0, sizeof(interval));
6809 memcpy(&interval, ev->c_latency, sizeof(ev->c_latency));
6810 conn->iso_qos.in.interval = le32_to_cpu(interval);
6811 memcpy(&interval, ev->p_latency, sizeof(ev->p_latency));
6812 conn->iso_qos.out.interval = le32_to_cpu(interval);
6813 conn->iso_qos.in.latency = le16_to_cpu(ev->interval);
6814 conn->iso_qos.out.latency = le16_to_cpu(ev->interval);
6815 conn->iso_qos.in.sdu = le16_to_cpu(ev->c_mtu);
6816 conn->iso_qos.out.sdu = le16_to_cpu(ev->p_mtu);
6817 conn->iso_qos.in.phy = ev->c_phy;
6818 conn->iso_qos.out.phy = ev->p_phy;
6822 conn->state = BT_CONNECTED;
6823 hci_debugfs_create_conn(conn);
6824 hci_conn_add_sysfs(conn);
6825 hci_iso_setup_path(conn);
6829 hci_connect_cfm(conn, ev->status);
6833 hci_dev_unlock(hdev);
6836 static void hci_le_reject_cis(struct hci_dev *hdev, __le16 handle)
6838 struct hci_cp_le_reject_cis cp;
6840 memset(&cp, 0, sizeof(cp));
6842 cp.reason = HCI_ERROR_REJ_BAD_ADDR;
6843 hci_send_cmd(hdev, HCI_OP_LE_REJECT_CIS, sizeof(cp), &cp);
6846 static void hci_le_accept_cis(struct hci_dev *hdev, __le16 handle)
6848 struct hci_cp_le_accept_cis cp;
6850 memset(&cp, 0, sizeof(cp));
6852 hci_send_cmd(hdev, HCI_OP_LE_ACCEPT_CIS, sizeof(cp), &cp);
6855 static void hci_le_cis_req_evt(struct hci_dev *hdev, void *data,
6856 struct sk_buff *skb)
6858 struct hci_evt_le_cis_req *ev = data;
6859 u16 acl_handle, cis_handle;
6860 struct hci_conn *acl, *cis;
6864 acl_handle = __le16_to_cpu(ev->acl_handle);
6865 cis_handle = __le16_to_cpu(ev->cis_handle);
6867 bt_dev_dbg(hdev, "acl 0x%4.4x handle 0x%4.4x cig 0x%2.2x cis 0x%2.2x",
6868 acl_handle, cis_handle, ev->cig_id, ev->cis_id);
6872 acl = hci_conn_hash_lookup_handle(hdev, acl_handle);
6876 mask = hci_proto_connect_ind(hdev, &acl->dst, ISO_LINK, &flags);
6877 if (!(mask & HCI_LM_ACCEPT)) {
6878 hci_le_reject_cis(hdev, ev->cis_handle);
6882 cis = hci_conn_hash_lookup_handle(hdev, cis_handle);
6884 cis = hci_conn_add(hdev, ISO_LINK, &acl->dst, HCI_ROLE_SLAVE);
6886 hci_le_reject_cis(hdev, ev->cis_handle);
6889 cis->handle = cis_handle;
6892 cis->iso_qos.cig = ev->cig_id;
6893 cis->iso_qos.cis = ev->cis_id;
6895 if (!(flags & HCI_PROTO_DEFER)) {
6896 hci_le_accept_cis(hdev, ev->cis_handle);
6898 cis->state = BT_CONNECT2;
6899 hci_connect_cfm(cis, 0);
6903 hci_dev_unlock(hdev);
6906 static void hci_le_create_big_complete_evt(struct hci_dev *hdev, void *data,
6907 struct sk_buff *skb)
6909 struct hci_evt_le_create_big_complete *ev = data;
6910 struct hci_conn *conn;
6912 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
6914 if (!hci_le_ev_skb_pull(hdev, skb, HCI_EVT_LE_CREATE_BIG_COMPLETE,
6915 flex_array_size(ev, bis_handle, ev->num_bis)))
6920 conn = hci_conn_hash_lookup_big(hdev, ev->handle);
6924 if (conn->type != ISO_LINK) {
6926 "Invalid connection link type handle 0x%2.2x",
6932 conn->handle = __le16_to_cpu(ev->bis_handle[0]);
6935 conn->state = BT_CONNECTED;
6936 hci_debugfs_create_conn(conn);
6937 hci_conn_add_sysfs(conn);
6938 hci_iso_setup_path(conn);
6942 hci_connect_cfm(conn, ev->status);
6946 hci_dev_unlock(hdev);
6949 static void hci_le_big_sync_established_evt(struct hci_dev *hdev, void *data,
6950 struct sk_buff *skb)
6952 struct hci_evt_le_big_sync_estabilished *ev = data;
6953 struct hci_conn *bis;
6956 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
6958 if (!hci_le_ev_skb_pull(hdev, skb, HCI_EVT_LE_BIG_SYNC_ESTABILISHED,
6959 flex_array_size(ev, bis, ev->num_bis)))
6967 for (i = 0; i < ev->num_bis; i++) {
6968 u16 handle = le16_to_cpu(ev->bis[i]);
6971 bis = hci_conn_hash_lookup_handle(hdev, handle);
6973 bis = hci_conn_add(hdev, ISO_LINK, BDADDR_ANY,
6977 bis->handle = handle;
6980 bis->iso_qos.big = ev->handle;
6981 memset(&interval, 0, sizeof(interval));
6982 memcpy(&interval, ev->latency, sizeof(ev->latency));
6983 bis->iso_qos.in.interval = le32_to_cpu(interval);
6984 /* Convert ISO Interval (1.25 ms slots) to latency (ms) */
6985 bis->iso_qos.in.latency = le16_to_cpu(ev->interval) * 125 / 100;
6986 bis->iso_qos.in.sdu = le16_to_cpu(ev->max_pdu);
6988 hci_connect_cfm(bis, ev->status);
6991 hci_dev_unlock(hdev);
6994 static void hci_le_big_info_adv_report_evt(struct hci_dev *hdev, void *data,
6995 struct sk_buff *skb)
6997 struct hci_evt_le_big_info_adv_report *ev = data;
6998 int mask = hdev->link_mode;
7001 bt_dev_dbg(hdev, "sync_handle 0x%4.4x", le16_to_cpu(ev->sync_handle));
7005 mask |= hci_proto_connect_ind(hdev, BDADDR_ANY, ISO_LINK, &flags);
7006 if (!(mask & HCI_LM_ACCEPT))
7007 hci_le_pa_term_sync(hdev, ev->sync_handle);
7009 hci_dev_unlock(hdev);
7012 #define HCI_LE_EV_VL(_op, _func, _min_len, _max_len) \
7015 .min_len = _min_len, \
7016 .max_len = _max_len, \
7019 #define HCI_LE_EV(_op, _func, _len) \
7020 HCI_LE_EV_VL(_op, _func, _len, _len)
7022 #define HCI_LE_EV_STATUS(_op, _func) \
7023 HCI_LE_EV(_op, _func, sizeof(struct hci_ev_status))
7025 /* Entries in this table shall have their position according to the subevent
7026 * opcode they handle so the use of the macros above is recommend since it does
7027 * attempt to initialize at its proper index using Designated Initializers that
7028 * way events without a callback function can be ommited.
7030 static const struct hci_le_ev {
7031 void (*func)(struct hci_dev *hdev, void *data, struct sk_buff *skb);
7034 } hci_le_ev_table[U8_MAX + 1] = {
7035 /* [0x01 = HCI_EV_LE_CONN_COMPLETE] */
7036 HCI_LE_EV(HCI_EV_LE_CONN_COMPLETE, hci_le_conn_complete_evt,
7037 sizeof(struct hci_ev_le_conn_complete)),
7038 /* [0x02 = HCI_EV_LE_ADVERTISING_REPORT] */
7039 HCI_LE_EV_VL(HCI_EV_LE_ADVERTISING_REPORT, hci_le_adv_report_evt,
7040 sizeof(struct hci_ev_le_advertising_report),
7041 HCI_MAX_EVENT_SIZE),
7042 /* [0x03 = HCI_EV_LE_CONN_UPDATE_COMPLETE] */
7043 HCI_LE_EV(HCI_EV_LE_CONN_UPDATE_COMPLETE,
7044 hci_le_conn_update_complete_evt,
7045 sizeof(struct hci_ev_le_conn_update_complete)),
7046 /* [0x04 = HCI_EV_LE_REMOTE_FEAT_COMPLETE] */
7047 HCI_LE_EV(HCI_EV_LE_REMOTE_FEAT_COMPLETE,
7048 hci_le_remote_feat_complete_evt,
7049 sizeof(struct hci_ev_le_remote_feat_complete)),
7050 /* [0x05 = HCI_EV_LE_LTK_REQ] */
7051 HCI_LE_EV(HCI_EV_LE_LTK_REQ, hci_le_ltk_request_evt,
7052 sizeof(struct hci_ev_le_ltk_req)),
7053 /* [0x06 = HCI_EV_LE_REMOTE_CONN_PARAM_REQ] */
7054 HCI_LE_EV(HCI_EV_LE_REMOTE_CONN_PARAM_REQ,
7055 hci_le_remote_conn_param_req_evt,
7056 sizeof(struct hci_ev_le_remote_conn_param_req)),
7057 /* [0x0a = HCI_EV_LE_ENHANCED_CONN_COMPLETE] */
7058 HCI_LE_EV(HCI_EV_LE_ENHANCED_CONN_COMPLETE,
7059 hci_le_enh_conn_complete_evt,
7060 sizeof(struct hci_ev_le_enh_conn_complete)),
7061 /* [0x0b = HCI_EV_LE_DIRECT_ADV_REPORT] */
7062 HCI_LE_EV_VL(HCI_EV_LE_DIRECT_ADV_REPORT, hci_le_direct_adv_report_evt,
7063 sizeof(struct hci_ev_le_direct_adv_report),
7064 HCI_MAX_EVENT_SIZE),
7065 /* [0x0c = HCI_EV_LE_PHY_UPDATE_COMPLETE] */
7066 HCI_LE_EV(HCI_EV_LE_PHY_UPDATE_COMPLETE, hci_le_phy_update_evt,
7067 sizeof(struct hci_ev_le_phy_update_complete)),
7068 /* [0x0d = HCI_EV_LE_EXT_ADV_REPORT] */
7069 HCI_LE_EV_VL(HCI_EV_LE_EXT_ADV_REPORT, hci_le_ext_adv_report_evt,
7070 sizeof(struct hci_ev_le_ext_adv_report),
7071 HCI_MAX_EVENT_SIZE),
7072 /* [0x0e = HCI_EV_LE_PA_SYNC_ESTABLISHED] */
7073 HCI_LE_EV(HCI_EV_LE_PA_SYNC_ESTABLISHED,
7074 hci_le_pa_sync_estabilished_evt,
7075 sizeof(struct hci_ev_le_pa_sync_established)),
7076 /* [0x12 = HCI_EV_LE_EXT_ADV_SET_TERM] */
7077 HCI_LE_EV(HCI_EV_LE_EXT_ADV_SET_TERM, hci_le_ext_adv_term_evt,
7078 sizeof(struct hci_evt_le_ext_adv_set_term)),
7079 /* [0x19 = HCI_EVT_LE_CIS_ESTABLISHED] */
7080 HCI_LE_EV(HCI_EVT_LE_CIS_ESTABLISHED, hci_le_cis_estabilished_evt,
7081 sizeof(struct hci_evt_le_cis_established)),
7082 /* [0x1a = HCI_EVT_LE_CIS_REQ] */
7083 HCI_LE_EV(HCI_EVT_LE_CIS_REQ, hci_le_cis_req_evt,
7084 sizeof(struct hci_evt_le_cis_req)),
7085 /* [0x1b = HCI_EVT_LE_CREATE_BIG_COMPLETE] */
7086 HCI_LE_EV_VL(HCI_EVT_LE_CREATE_BIG_COMPLETE,
7087 hci_le_create_big_complete_evt,
7088 sizeof(struct hci_evt_le_create_big_complete),
7089 HCI_MAX_EVENT_SIZE),
7090 /* [0x1d = HCI_EV_LE_BIG_SYNC_ESTABILISHED] */
7091 HCI_LE_EV_VL(HCI_EVT_LE_BIG_SYNC_ESTABILISHED,
7092 hci_le_big_sync_established_evt,
7093 sizeof(struct hci_evt_le_big_sync_estabilished),
7094 HCI_MAX_EVENT_SIZE),
7095 /* [0x22 = HCI_EVT_LE_BIG_INFO_ADV_REPORT] */
7096 HCI_LE_EV_VL(HCI_EVT_LE_BIG_INFO_ADV_REPORT,
7097 hci_le_big_info_adv_report_evt,
7098 sizeof(struct hci_evt_le_big_info_adv_report),
7099 HCI_MAX_EVENT_SIZE),
7102 static void hci_le_meta_evt(struct hci_dev *hdev, void *data,
7103 struct sk_buff *skb, u16 *opcode, u8 *status,
7104 hci_req_complete_t *req_complete,
7105 hci_req_complete_skb_t *req_complete_skb)
7107 struct hci_ev_le_meta *ev = data;
7108 const struct hci_le_ev *subev;
7110 bt_dev_dbg(hdev, "subevent 0x%2.2x", ev->subevent);
7112 /* Only match event if command OGF is for LE */
7113 if (hdev->sent_cmd &&
7114 hci_opcode_ogf(hci_skb_opcode(hdev->sent_cmd)) == 0x08 &&
7115 hci_skb_event(hdev->sent_cmd) == ev->subevent) {
7116 *opcode = hci_skb_opcode(hdev->sent_cmd);
7117 hci_req_cmd_complete(hdev, *opcode, 0x00, req_complete,
7121 subev = &hci_le_ev_table[ev->subevent];
7125 if (skb->len < subev->min_len) {
7126 bt_dev_err(hdev, "unexpected subevent 0x%2.2x length: %u < %u",
7127 ev->subevent, skb->len, subev->min_len);
7131 /* Just warn if the length is over max_len size it still be
7132 * possible to partially parse the event so leave to callback to
7133 * decide if that is acceptable.
7135 if (skb->len > subev->max_len)
7136 bt_dev_warn(hdev, "unexpected subevent 0x%2.2x length: %u > %u",
7137 ev->subevent, skb->len, subev->max_len);
7138 data = hci_le_ev_skb_pull(hdev, skb, ev->subevent, subev->min_len);
7142 subev->func(hdev, data, skb);
7145 static bool hci_get_cmd_complete(struct hci_dev *hdev, u16 opcode,
7146 u8 event, struct sk_buff *skb)
7148 struct hci_ev_cmd_complete *ev;
7149 struct hci_event_hdr *hdr;
7154 hdr = hci_ev_skb_pull(hdev, skb, event, sizeof(*hdr));
7159 if (hdr->evt != event)
7164 /* Check if request ended in Command Status - no way to retrieve
7165 * any extra parameters in this case.
7167 if (hdr->evt == HCI_EV_CMD_STATUS)
7170 if (hdr->evt != HCI_EV_CMD_COMPLETE) {
7171 bt_dev_err(hdev, "last event is not cmd complete (0x%2.2x)",
7176 ev = hci_cc_skb_pull(hdev, skb, opcode, sizeof(*ev));
7180 if (opcode != __le16_to_cpu(ev->opcode)) {
7181 BT_DBG("opcode doesn't match (0x%2.2x != 0x%2.2x)", opcode,
7182 __le16_to_cpu(ev->opcode));
7189 static void hci_store_wake_reason(struct hci_dev *hdev, u8 event,
7190 struct sk_buff *skb)
7192 struct hci_ev_le_advertising_info *adv;
7193 struct hci_ev_le_direct_adv_info *direct_adv;
7194 struct hci_ev_le_ext_adv_info *ext_adv;
7195 const struct hci_ev_conn_complete *conn_complete = (void *)skb->data;
7196 const struct hci_ev_conn_request *conn_request = (void *)skb->data;
7200 /* If we are currently suspended and this is the first BT event seen,
7201 * save the wake reason associated with the event.
7203 if (!hdev->suspended || hdev->wake_reason)
7206 /* Default to remote wake. Values for wake_reason are documented in the
7207 * Bluez mgmt api docs.
7209 hdev->wake_reason = MGMT_WAKE_REASON_REMOTE_WAKE;
7211 /* Once configured for remote wakeup, we should only wake up for
7212 * reconnections. It's useful to see which device is waking us up so
7213 * keep track of the bdaddr of the connection event that woke us up.
7215 if (event == HCI_EV_CONN_REQUEST) {
7216 bacpy(&hdev->wake_addr, &conn_complete->bdaddr);
7217 hdev->wake_addr_type = BDADDR_BREDR;
7218 } else if (event == HCI_EV_CONN_COMPLETE) {
7219 bacpy(&hdev->wake_addr, &conn_request->bdaddr);
7220 hdev->wake_addr_type = BDADDR_BREDR;
7221 } else if (event == HCI_EV_LE_META) {
7222 struct hci_ev_le_meta *le_ev = (void *)skb->data;
7223 u8 subevent = le_ev->subevent;
7224 u8 *ptr = &skb->data[sizeof(*le_ev)];
7225 u8 num_reports = *ptr;
7227 if ((subevent == HCI_EV_LE_ADVERTISING_REPORT ||
7228 subevent == HCI_EV_LE_DIRECT_ADV_REPORT ||
7229 subevent == HCI_EV_LE_EXT_ADV_REPORT) &&
7231 adv = (void *)(ptr + 1);
7232 direct_adv = (void *)(ptr + 1);
7233 ext_adv = (void *)(ptr + 1);
7236 case HCI_EV_LE_ADVERTISING_REPORT:
7237 bacpy(&hdev->wake_addr, &adv->bdaddr);
7238 hdev->wake_addr_type = adv->bdaddr_type;
7240 case HCI_EV_LE_DIRECT_ADV_REPORT:
7241 bacpy(&hdev->wake_addr, &direct_adv->bdaddr);
7242 hdev->wake_addr_type = direct_adv->bdaddr_type;
7244 case HCI_EV_LE_EXT_ADV_REPORT:
7245 bacpy(&hdev->wake_addr, &ext_adv->bdaddr);
7246 hdev->wake_addr_type = ext_adv->bdaddr_type;
7251 hdev->wake_reason = MGMT_WAKE_REASON_UNEXPECTED;
7255 hci_dev_unlock(hdev);
7258 #define HCI_EV_VL(_op, _func, _min_len, _max_len) \
7262 .min_len = _min_len, \
7263 .max_len = _max_len, \
7266 #define HCI_EV(_op, _func, _len) \
7267 HCI_EV_VL(_op, _func, _len, _len)
7269 #define HCI_EV_STATUS(_op, _func) \
7270 HCI_EV(_op, _func, sizeof(struct hci_ev_status))
7272 #define HCI_EV_REQ_VL(_op, _func, _min_len, _max_len) \
7275 .func_req = _func, \
7276 .min_len = _min_len, \
7277 .max_len = _max_len, \
7280 #define HCI_EV_REQ(_op, _func, _len) \
7281 HCI_EV_REQ_VL(_op, _func, _len, _len)
7283 /* Entries in this table shall have their position according to the event opcode
7284 * they handle so the use of the macros above is recommend since it does attempt
7285 * to initialize at its proper index using Designated Initializers that way
7286 * events without a callback function don't have entered.
7288 static const struct hci_ev {
7291 void (*func)(struct hci_dev *hdev, void *data,
7292 struct sk_buff *skb);
7293 void (*func_req)(struct hci_dev *hdev, void *data,
7294 struct sk_buff *skb, u16 *opcode, u8 *status,
7295 hci_req_complete_t *req_complete,
7296 hci_req_complete_skb_t *req_complete_skb);
7300 } hci_ev_table[U8_MAX + 1] = {
7301 /* [0x01 = HCI_EV_INQUIRY_COMPLETE] */
7302 HCI_EV_STATUS(HCI_EV_INQUIRY_COMPLETE, hci_inquiry_complete_evt),
7303 /* [0x02 = HCI_EV_INQUIRY_RESULT] */
7304 HCI_EV_VL(HCI_EV_INQUIRY_RESULT, hci_inquiry_result_evt,
7305 sizeof(struct hci_ev_inquiry_result), HCI_MAX_EVENT_SIZE),
7306 /* [0x03 = HCI_EV_CONN_COMPLETE] */
7307 HCI_EV(HCI_EV_CONN_COMPLETE, hci_conn_complete_evt,
7308 sizeof(struct hci_ev_conn_complete)),
7309 /* [0x04 = HCI_EV_CONN_REQUEST] */
7310 HCI_EV(HCI_EV_CONN_REQUEST, hci_conn_request_evt,
7311 sizeof(struct hci_ev_conn_request)),
7312 /* [0x05 = HCI_EV_DISCONN_COMPLETE] */
7313 HCI_EV(HCI_EV_DISCONN_COMPLETE, hci_disconn_complete_evt,
7314 sizeof(struct hci_ev_disconn_complete)),
7315 /* [0x06 = HCI_EV_AUTH_COMPLETE] */
7316 HCI_EV(HCI_EV_AUTH_COMPLETE, hci_auth_complete_evt,
7317 sizeof(struct hci_ev_auth_complete)),
7318 /* [0x07 = HCI_EV_REMOTE_NAME] */
7319 HCI_EV(HCI_EV_REMOTE_NAME, hci_remote_name_evt,
7320 sizeof(struct hci_ev_remote_name)),
7321 /* [0x08 = HCI_EV_ENCRYPT_CHANGE] */
7322 HCI_EV(HCI_EV_ENCRYPT_CHANGE, hci_encrypt_change_evt,
7323 sizeof(struct hci_ev_encrypt_change)),
7324 /* [0x09 = HCI_EV_CHANGE_LINK_KEY_COMPLETE] */
7325 HCI_EV(HCI_EV_CHANGE_LINK_KEY_COMPLETE,
7326 hci_change_link_key_complete_evt,
7327 sizeof(struct hci_ev_change_link_key_complete)),
7328 /* [0x0b = HCI_EV_REMOTE_FEATURES] */
7329 HCI_EV(HCI_EV_REMOTE_FEATURES, hci_remote_features_evt,
7330 sizeof(struct hci_ev_remote_features)),
7331 /* [0x0e = HCI_EV_CMD_COMPLETE] */
7332 HCI_EV_REQ_VL(HCI_EV_CMD_COMPLETE, hci_cmd_complete_evt,
7333 sizeof(struct hci_ev_cmd_complete), HCI_MAX_EVENT_SIZE),
7334 /* [0x0f = HCI_EV_CMD_STATUS] */
7335 HCI_EV_REQ(HCI_EV_CMD_STATUS, hci_cmd_status_evt,
7336 sizeof(struct hci_ev_cmd_status)),
7337 /* [0x10 = HCI_EV_CMD_STATUS] */
7338 HCI_EV(HCI_EV_HARDWARE_ERROR, hci_hardware_error_evt,
7339 sizeof(struct hci_ev_hardware_error)),
7340 /* [0x12 = HCI_EV_ROLE_CHANGE] */
7341 HCI_EV(HCI_EV_ROLE_CHANGE, hci_role_change_evt,
7342 sizeof(struct hci_ev_role_change)),
7343 /* [0x13 = HCI_EV_NUM_COMP_PKTS] */
7344 HCI_EV_VL(HCI_EV_NUM_COMP_PKTS, hci_num_comp_pkts_evt,
7345 sizeof(struct hci_ev_num_comp_pkts), HCI_MAX_EVENT_SIZE),
7346 /* [0x14 = HCI_EV_MODE_CHANGE] */
7347 HCI_EV(HCI_EV_MODE_CHANGE, hci_mode_change_evt,
7348 sizeof(struct hci_ev_mode_change)),
7349 /* [0x16 = HCI_EV_PIN_CODE_REQ] */
7350 HCI_EV(HCI_EV_PIN_CODE_REQ, hci_pin_code_request_evt,
7351 sizeof(struct hci_ev_pin_code_req)),
7352 /* [0x17 = HCI_EV_LINK_KEY_REQ] */
7353 HCI_EV(HCI_EV_LINK_KEY_REQ, hci_link_key_request_evt,
7354 sizeof(struct hci_ev_link_key_req)),
7355 /* [0x18 = HCI_EV_LINK_KEY_NOTIFY] */
7356 HCI_EV(HCI_EV_LINK_KEY_NOTIFY, hci_link_key_notify_evt,
7357 sizeof(struct hci_ev_link_key_notify)),
7358 /* [0x1c = HCI_EV_CLOCK_OFFSET] */
7359 HCI_EV(HCI_EV_CLOCK_OFFSET, hci_clock_offset_evt,
7360 sizeof(struct hci_ev_clock_offset)),
7361 /* [0x1d = HCI_EV_PKT_TYPE_CHANGE] */
7362 HCI_EV(HCI_EV_PKT_TYPE_CHANGE, hci_pkt_type_change_evt,
7363 sizeof(struct hci_ev_pkt_type_change)),
7364 /* [0x20 = HCI_EV_PSCAN_REP_MODE] */
7365 HCI_EV(HCI_EV_PSCAN_REP_MODE, hci_pscan_rep_mode_evt,
7366 sizeof(struct hci_ev_pscan_rep_mode)),
7367 /* [0x22 = HCI_EV_INQUIRY_RESULT_WITH_RSSI] */
7368 HCI_EV_VL(HCI_EV_INQUIRY_RESULT_WITH_RSSI,
7369 hci_inquiry_result_with_rssi_evt,
7370 sizeof(struct hci_ev_inquiry_result_rssi),
7371 HCI_MAX_EVENT_SIZE),
7372 /* [0x23 = HCI_EV_REMOTE_EXT_FEATURES] */
7373 HCI_EV(HCI_EV_REMOTE_EXT_FEATURES, hci_remote_ext_features_evt,
7374 sizeof(struct hci_ev_remote_ext_features)),
7375 /* [0x2c = HCI_EV_SYNC_CONN_COMPLETE] */
7376 HCI_EV(HCI_EV_SYNC_CONN_COMPLETE, hci_sync_conn_complete_evt,
7377 sizeof(struct hci_ev_sync_conn_complete)),
7378 /* [0x2d = HCI_EV_EXTENDED_INQUIRY_RESULT] */
7379 HCI_EV_VL(HCI_EV_EXTENDED_INQUIRY_RESULT,
7380 hci_extended_inquiry_result_evt,
7381 sizeof(struct hci_ev_ext_inquiry_result), HCI_MAX_EVENT_SIZE),
7382 /* [0x30 = HCI_EV_KEY_REFRESH_COMPLETE] */
7383 HCI_EV(HCI_EV_KEY_REFRESH_COMPLETE, hci_key_refresh_complete_evt,
7384 sizeof(struct hci_ev_key_refresh_complete)),
7385 /* [0x31 = HCI_EV_IO_CAPA_REQUEST] */
7386 HCI_EV(HCI_EV_IO_CAPA_REQUEST, hci_io_capa_request_evt,
7387 sizeof(struct hci_ev_io_capa_request)),
7388 /* [0x32 = HCI_EV_IO_CAPA_REPLY] */
7389 HCI_EV(HCI_EV_IO_CAPA_REPLY, hci_io_capa_reply_evt,
7390 sizeof(struct hci_ev_io_capa_reply)),
7391 /* [0x33 = HCI_EV_USER_CONFIRM_REQUEST] */
7392 HCI_EV(HCI_EV_USER_CONFIRM_REQUEST, hci_user_confirm_request_evt,
7393 sizeof(struct hci_ev_user_confirm_req)),
7394 /* [0x34 = HCI_EV_USER_PASSKEY_REQUEST] */
7395 HCI_EV(HCI_EV_USER_PASSKEY_REQUEST, hci_user_passkey_request_evt,
7396 sizeof(struct hci_ev_user_passkey_req)),
7397 /* [0x35 = HCI_EV_REMOTE_OOB_DATA_REQUEST] */
7398 HCI_EV(HCI_EV_REMOTE_OOB_DATA_REQUEST, hci_remote_oob_data_request_evt,
7399 sizeof(struct hci_ev_remote_oob_data_request)),
7400 /* [0x36 = HCI_EV_SIMPLE_PAIR_COMPLETE] */
7401 HCI_EV(HCI_EV_SIMPLE_PAIR_COMPLETE, hci_simple_pair_complete_evt,
7402 sizeof(struct hci_ev_simple_pair_complete)),
7403 /* [0x3b = HCI_EV_USER_PASSKEY_NOTIFY] */
7404 HCI_EV(HCI_EV_USER_PASSKEY_NOTIFY, hci_user_passkey_notify_evt,
7405 sizeof(struct hci_ev_user_passkey_notify)),
7406 /* [0x3c = HCI_EV_KEYPRESS_NOTIFY] */
7407 HCI_EV(HCI_EV_KEYPRESS_NOTIFY, hci_keypress_notify_evt,
7408 sizeof(struct hci_ev_keypress_notify)),
7409 /* [0x3d = HCI_EV_REMOTE_HOST_FEATURES] */
7410 HCI_EV(HCI_EV_REMOTE_HOST_FEATURES, hci_remote_host_features_evt,
7411 sizeof(struct hci_ev_remote_host_features)),
7412 /* [0x3e = HCI_EV_LE_META] */
7413 HCI_EV_REQ_VL(HCI_EV_LE_META, hci_le_meta_evt,
7414 sizeof(struct hci_ev_le_meta), HCI_MAX_EVENT_SIZE),
7415 #if IS_ENABLED(CONFIG_BT_HS)
7416 /* [0x40 = HCI_EV_PHY_LINK_COMPLETE] */
7417 HCI_EV(HCI_EV_PHY_LINK_COMPLETE, hci_phy_link_complete_evt,
7418 sizeof(struct hci_ev_phy_link_complete)),
7419 /* [0x41 = HCI_EV_CHANNEL_SELECTED] */
7420 HCI_EV(HCI_EV_CHANNEL_SELECTED, hci_chan_selected_evt,
7421 sizeof(struct hci_ev_channel_selected)),
7422 /* [0x42 = HCI_EV_DISCONN_PHY_LINK_COMPLETE] */
7423 HCI_EV(HCI_EV_DISCONN_LOGICAL_LINK_COMPLETE,
7424 hci_disconn_loglink_complete_evt,
7425 sizeof(struct hci_ev_disconn_logical_link_complete)),
7426 /* [0x45 = HCI_EV_LOGICAL_LINK_COMPLETE] */
7427 HCI_EV(HCI_EV_LOGICAL_LINK_COMPLETE, hci_loglink_complete_evt,
7428 sizeof(struct hci_ev_logical_link_complete)),
7429 /* [0x46 = HCI_EV_DISCONN_LOGICAL_LINK_COMPLETE] */
7430 HCI_EV(HCI_EV_DISCONN_PHY_LINK_COMPLETE,
7431 hci_disconn_phylink_complete_evt,
7432 sizeof(struct hci_ev_disconn_phy_link_complete)),
7434 /* [0x48 = HCI_EV_NUM_COMP_BLOCKS] */
7435 HCI_EV(HCI_EV_NUM_COMP_BLOCKS, hci_num_comp_blocks_evt,
7436 sizeof(struct hci_ev_num_comp_blocks)),
7437 /* [0xff = HCI_EV_VENDOR] */
7438 HCI_EV_VL(HCI_EV_VENDOR, msft_vendor_evt, 0, HCI_MAX_EVENT_SIZE),
7441 static void hci_event_func(struct hci_dev *hdev, u8 event, struct sk_buff *skb,
7442 u16 *opcode, u8 *status,
7443 hci_req_complete_t *req_complete,
7444 hci_req_complete_skb_t *req_complete_skb)
7446 const struct hci_ev *ev = &hci_ev_table[event];
7452 if (skb->len < ev->min_len) {
7453 bt_dev_err(hdev, "unexpected event 0x%2.2x length: %u < %u",
7454 event, skb->len, ev->min_len);
7458 /* Just warn if the length is over max_len size it still be
7459 * possible to partially parse the event so leave to callback to
7460 * decide if that is acceptable.
7462 if (skb->len > ev->max_len)
7463 bt_dev_warn_ratelimited(hdev,
7464 "unexpected event 0x%2.2x length: %u > %u",
7465 event, skb->len, ev->max_len);
7467 data = hci_ev_skb_pull(hdev, skb, event, ev->min_len);
7472 ev->func_req(hdev, data, skb, opcode, status, req_complete,
7475 ev->func(hdev, data, skb);
7478 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb)
7480 struct hci_event_hdr *hdr = (void *) skb->data;
7481 hci_req_complete_t req_complete = NULL;
7482 hci_req_complete_skb_t req_complete_skb = NULL;
7483 struct sk_buff *orig_skb = NULL;
7484 u8 status = 0, event, req_evt = 0;
7485 u16 opcode = HCI_OP_NOP;
7487 if (skb->len < sizeof(*hdr)) {
7488 bt_dev_err(hdev, "Malformed HCI Event");
7492 kfree_skb(hdev->recv_event);
7493 hdev->recv_event = skb_clone(skb, GFP_KERNEL);
7497 bt_dev_warn(hdev, "Received unexpected HCI Event 0x%2.2x",
7502 /* Only match event if command OGF is not for LE */
7503 if (hdev->sent_cmd &&
7504 hci_opcode_ogf(hci_skb_opcode(hdev->sent_cmd)) != 0x08 &&
7505 hci_skb_event(hdev->sent_cmd) == event) {
7506 hci_req_cmd_complete(hdev, hci_skb_opcode(hdev->sent_cmd),
7507 status, &req_complete, &req_complete_skb);
7511 /* If it looks like we might end up having to call
7512 * req_complete_skb, store a pristine copy of the skb since the
7513 * various handlers may modify the original one through
7514 * skb_pull() calls, etc.
7516 if (req_complete_skb || event == HCI_EV_CMD_STATUS ||
7517 event == HCI_EV_CMD_COMPLETE)
7518 orig_skb = skb_clone(skb, GFP_KERNEL);
7520 skb_pull(skb, HCI_EVENT_HDR_SIZE);
7522 /* Store wake reason if we're suspended */
7523 hci_store_wake_reason(hdev, event, skb);
7525 bt_dev_dbg(hdev, "event 0x%2.2x", event);
7527 hci_event_func(hdev, event, skb, &opcode, &status, &req_complete,
7531 req_complete(hdev, status, opcode);
7532 } else if (req_complete_skb) {
7533 if (!hci_get_cmd_complete(hdev, opcode, req_evt, orig_skb)) {
7534 kfree_skb(orig_skb);
7537 req_complete_skb(hdev, status, opcode, orig_skb);
7541 kfree_skb(orig_skb);
7543 hdev->stat.evt_rx++;