2 BlueZ - Bluetooth protocol stack for Linux
3 Copyright (c) 2000-2001, 2010, Code Aurora Forum. All rights reserved.
5 Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License version 2 as
9 published by the Free Software Foundation;
11 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
12 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
13 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
14 IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
15 CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
16 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
17 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
18 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
20 ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
21 COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
22 SOFTWARE IS DISCLAIMED.
25 /* Bluetooth HCI event handling. */
27 #include <asm/unaligned.h>
29 #include <net/bluetooth/bluetooth.h>
30 #include <net/bluetooth/hci_core.h>
31 #include <net/bluetooth/mgmt.h>
33 #include "hci_request.h"
34 #include "hci_debugfs.h"
41 #define ZERO_KEY "\x00\x00\x00\x00\x00\x00\x00\x00" \
42 "\x00\x00\x00\x00\x00\x00\x00\x00"
44 #define secs_to_jiffies(_secs) msecs_to_jiffies((_secs) * 1000)
46 /* Handle HCI Event packets */
48 static void *hci_ev_skb_pull(struct hci_dev *hdev, struct sk_buff *skb,
53 data = skb_pull_data(skb, len);
55 bt_dev_err(hdev, "Malformed Event: 0x%2.2x", ev);
60 static void *hci_cc_skb_pull(struct hci_dev *hdev, struct sk_buff *skb,
65 data = skb_pull_data(skb, len);
67 bt_dev_err(hdev, "Malformed Command Complete: 0x%4.4x", op);
72 static void *hci_le_ev_skb_pull(struct hci_dev *hdev, struct sk_buff *skb,
77 data = skb_pull_data(skb, len);
79 bt_dev_err(hdev, "Malformed LE Event: 0x%2.2x", ev);
84 static u8 hci_cc_inquiry_cancel(struct hci_dev *hdev, void *data,
87 struct hci_ev_status *rp = data;
89 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
91 /* It is possible that we receive Inquiry Complete event right
92 * before we receive Inquiry Cancel Command Complete event, in
93 * which case the latter event should have status of Command
94 * Disallowed (0x0c). This should not be treated as error, since
95 * we actually achieve what Inquiry Cancel wants to achieve,
96 * which is to end the last Inquiry session.
98 if (rp->status == 0x0c && !test_bit(HCI_INQUIRY, &hdev->flags)) {
99 bt_dev_warn(hdev, "Ignoring error of Inquiry Cancel command");
106 clear_bit(HCI_INQUIRY, &hdev->flags);
107 smp_mb__after_atomic(); /* wake_up_bit advises about this barrier */
108 wake_up_bit(&hdev->flags, HCI_INQUIRY);
111 /* Set discovery state to stopped if we're not doing LE active
114 if (!hci_dev_test_flag(hdev, HCI_LE_SCAN) ||
115 hdev->le_scan_type != LE_SCAN_ACTIVE)
116 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
117 hci_dev_unlock(hdev);
119 hci_conn_check_pending(hdev);
124 static u8 hci_cc_periodic_inq(struct hci_dev *hdev, void *data,
127 struct hci_ev_status *rp = data;
129 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
134 hci_dev_set_flag(hdev, HCI_PERIODIC_INQ);
139 static u8 hci_cc_exit_periodic_inq(struct hci_dev *hdev, void *data,
142 struct hci_ev_status *rp = data;
144 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
149 hci_dev_clear_flag(hdev, HCI_PERIODIC_INQ);
151 hci_conn_check_pending(hdev);
156 static u8 hci_cc_remote_name_req_cancel(struct hci_dev *hdev, void *data,
159 struct hci_ev_status *rp = data;
161 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
166 static u8 hci_cc_role_discovery(struct hci_dev *hdev, void *data,
169 struct hci_rp_role_discovery *rp = data;
170 struct hci_conn *conn;
172 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
179 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
181 conn->role = rp->role;
183 hci_dev_unlock(hdev);
188 static u8 hci_cc_read_link_policy(struct hci_dev *hdev, void *data,
191 struct hci_rp_read_link_policy *rp = data;
192 struct hci_conn *conn;
194 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
201 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
203 conn->link_policy = __le16_to_cpu(rp->policy);
205 hci_dev_unlock(hdev);
210 static u8 hci_cc_write_link_policy(struct hci_dev *hdev, void *data,
213 struct hci_rp_write_link_policy *rp = data;
214 struct hci_conn *conn;
217 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
222 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LINK_POLICY);
228 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
230 conn->link_policy = get_unaligned_le16(sent + 2);
232 hci_dev_unlock(hdev);
237 static u8 hci_cc_read_def_link_policy(struct hci_dev *hdev, void *data,
240 struct hci_rp_read_def_link_policy *rp = data;
242 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
247 hdev->link_policy = __le16_to_cpu(rp->policy);
252 static u8 hci_cc_write_def_link_policy(struct hci_dev *hdev, void *data,
255 struct hci_ev_status *rp = data;
258 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
263 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_DEF_LINK_POLICY);
267 hdev->link_policy = get_unaligned_le16(sent);
272 static u8 hci_cc_reset(struct hci_dev *hdev, void *data, struct sk_buff *skb)
274 struct hci_ev_status *rp = data;
276 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
278 clear_bit(HCI_RESET, &hdev->flags);
283 /* Reset all non-persistent flags */
284 hci_dev_clear_volatile_flags(hdev);
286 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
288 hdev->inq_tx_power = HCI_TX_POWER_INVALID;
289 hdev->adv_tx_power = HCI_TX_POWER_INVALID;
291 memset(hdev->adv_data, 0, sizeof(hdev->adv_data));
292 hdev->adv_data_len = 0;
294 memset(hdev->scan_rsp_data, 0, sizeof(hdev->scan_rsp_data));
295 hdev->scan_rsp_data_len = 0;
297 hdev->le_scan_type = LE_SCAN_PASSIVE;
299 hdev->ssp_debug_mode = 0;
301 hci_bdaddr_list_clear(&hdev->le_accept_list);
302 hci_bdaddr_list_clear(&hdev->le_resolv_list);
307 static u8 hci_cc_read_stored_link_key(struct hci_dev *hdev, void *data,
310 struct hci_rp_read_stored_link_key *rp = data;
311 struct hci_cp_read_stored_link_key *sent;
313 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
315 sent = hci_sent_cmd_data(hdev, HCI_OP_READ_STORED_LINK_KEY);
319 if (!rp->status && sent->read_all == 0x01) {
320 hdev->stored_max_keys = le16_to_cpu(rp->max_keys);
321 hdev->stored_num_keys = le16_to_cpu(rp->num_keys);
327 static u8 hci_cc_delete_stored_link_key(struct hci_dev *hdev, void *data,
330 struct hci_rp_delete_stored_link_key *rp = data;
333 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
338 num_keys = le16_to_cpu(rp->num_keys);
340 if (num_keys <= hdev->stored_num_keys)
341 hdev->stored_num_keys -= num_keys;
343 hdev->stored_num_keys = 0;
348 static u8 hci_cc_write_local_name(struct hci_dev *hdev, void *data,
351 struct hci_ev_status *rp = data;
354 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
356 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LOCAL_NAME);
362 if (hci_dev_test_flag(hdev, HCI_MGMT))
363 mgmt_set_local_name_complete(hdev, sent, rp->status);
364 else if (!rp->status)
365 memcpy(hdev->dev_name, sent, HCI_MAX_NAME_LENGTH);
367 hci_dev_unlock(hdev);
372 static u8 hci_cc_read_local_name(struct hci_dev *hdev, void *data,
375 struct hci_rp_read_local_name *rp = data;
377 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
382 if (hci_dev_test_flag(hdev, HCI_SETUP) ||
383 hci_dev_test_flag(hdev, HCI_CONFIG))
384 memcpy(hdev->dev_name, rp->name, HCI_MAX_NAME_LENGTH);
389 static u8 hci_cc_write_auth_enable(struct hci_dev *hdev, void *data,
392 struct hci_ev_status *rp = data;
395 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
397 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_AUTH_ENABLE);
404 __u8 param = *((__u8 *) sent);
406 if (param == AUTH_ENABLED)
407 set_bit(HCI_AUTH, &hdev->flags);
409 clear_bit(HCI_AUTH, &hdev->flags);
412 if (hci_dev_test_flag(hdev, HCI_MGMT))
413 mgmt_auth_enable_complete(hdev, rp->status);
415 hci_dev_unlock(hdev);
420 static u8 hci_cc_write_encrypt_mode(struct hci_dev *hdev, void *data,
423 struct hci_ev_status *rp = data;
427 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
432 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_ENCRYPT_MODE);
436 param = *((__u8 *) sent);
439 set_bit(HCI_ENCRYPT, &hdev->flags);
441 clear_bit(HCI_ENCRYPT, &hdev->flags);
446 static u8 hci_cc_write_scan_enable(struct hci_dev *hdev, void *data,
449 struct hci_ev_status *rp = data;
453 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
455 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SCAN_ENABLE);
459 param = *((__u8 *) sent);
464 hdev->discov_timeout = 0;
468 if (param & SCAN_INQUIRY)
469 set_bit(HCI_ISCAN, &hdev->flags);
471 clear_bit(HCI_ISCAN, &hdev->flags);
473 if (param & SCAN_PAGE)
474 set_bit(HCI_PSCAN, &hdev->flags);
476 clear_bit(HCI_PSCAN, &hdev->flags);
479 hci_dev_unlock(hdev);
484 static u8 hci_cc_set_event_filter(struct hci_dev *hdev, void *data,
487 struct hci_ev_status *rp = data;
488 struct hci_cp_set_event_filter *cp;
491 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
496 sent = hci_sent_cmd_data(hdev, HCI_OP_SET_EVENT_FLT);
500 cp = (struct hci_cp_set_event_filter *)sent;
502 if (cp->flt_type == HCI_FLT_CLEAR_ALL)
503 hci_dev_clear_flag(hdev, HCI_EVENT_FILTER_CONFIGURED);
505 hci_dev_set_flag(hdev, HCI_EVENT_FILTER_CONFIGURED);
510 static u8 hci_cc_read_class_of_dev(struct hci_dev *hdev, void *data,
513 struct hci_rp_read_class_of_dev *rp = data;
515 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
520 memcpy(hdev->dev_class, rp->dev_class, 3);
522 bt_dev_dbg(hdev, "class 0x%.2x%.2x%.2x", hdev->dev_class[2],
523 hdev->dev_class[1], hdev->dev_class[0]);
528 static u8 hci_cc_write_class_of_dev(struct hci_dev *hdev, void *data,
531 struct hci_ev_status *rp = data;
534 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
536 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_CLASS_OF_DEV);
543 memcpy(hdev->dev_class, sent, 3);
545 if (hci_dev_test_flag(hdev, HCI_MGMT))
546 mgmt_set_class_of_dev_complete(hdev, sent, rp->status);
548 hci_dev_unlock(hdev);
553 static u8 hci_cc_read_voice_setting(struct hci_dev *hdev, void *data,
556 struct hci_rp_read_voice_setting *rp = data;
559 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
564 setting = __le16_to_cpu(rp->voice_setting);
566 if (hdev->voice_setting == setting)
569 hdev->voice_setting = setting;
571 bt_dev_dbg(hdev, "voice setting 0x%4.4x", setting);
574 hdev->notify(hdev, HCI_NOTIFY_VOICE_SETTING);
579 static u8 hci_cc_write_voice_setting(struct hci_dev *hdev, void *data,
582 struct hci_ev_status *rp = data;
586 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
591 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_VOICE_SETTING);
595 setting = get_unaligned_le16(sent);
597 if (hdev->voice_setting == setting)
600 hdev->voice_setting = setting;
602 bt_dev_dbg(hdev, "voice setting 0x%4.4x", setting);
605 hdev->notify(hdev, HCI_NOTIFY_VOICE_SETTING);
610 static u8 hci_cc_read_num_supported_iac(struct hci_dev *hdev, void *data,
613 struct hci_rp_read_num_supported_iac *rp = data;
615 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
620 hdev->num_iac = rp->num_iac;
622 bt_dev_dbg(hdev, "num iac %d", hdev->num_iac);
627 static u8 hci_cc_write_ssp_mode(struct hci_dev *hdev, void *data,
630 struct hci_ev_status *rp = data;
631 struct hci_cp_write_ssp_mode *sent;
633 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
635 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SSP_MODE);
643 hdev->features[1][0] |= LMP_HOST_SSP;
645 hdev->features[1][0] &= ~LMP_HOST_SSP;
650 hci_dev_set_flag(hdev, HCI_SSP_ENABLED);
652 hci_dev_clear_flag(hdev, HCI_SSP_ENABLED);
655 hci_dev_unlock(hdev);
660 static u8 hci_cc_write_sc_support(struct hci_dev *hdev, void *data,
663 struct hci_ev_status *rp = data;
664 struct hci_cp_write_sc_support *sent;
666 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
668 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SC_SUPPORT);
676 hdev->features[1][0] |= LMP_HOST_SC;
678 hdev->features[1][0] &= ~LMP_HOST_SC;
681 if (!hci_dev_test_flag(hdev, HCI_MGMT) && !rp->status) {
683 hci_dev_set_flag(hdev, HCI_SC_ENABLED);
685 hci_dev_clear_flag(hdev, HCI_SC_ENABLED);
688 hci_dev_unlock(hdev);
693 static u8 hci_cc_read_local_version(struct hci_dev *hdev, void *data,
696 struct hci_rp_read_local_version *rp = data;
698 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
703 if (hci_dev_test_flag(hdev, HCI_SETUP) ||
704 hci_dev_test_flag(hdev, HCI_CONFIG)) {
705 hdev->hci_ver = rp->hci_ver;
706 hdev->hci_rev = __le16_to_cpu(rp->hci_rev);
707 hdev->lmp_ver = rp->lmp_ver;
708 hdev->manufacturer = __le16_to_cpu(rp->manufacturer);
709 hdev->lmp_subver = __le16_to_cpu(rp->lmp_subver);
715 static u8 hci_cc_read_enc_key_size(struct hci_dev *hdev, void *data,
718 struct hci_rp_read_enc_key_size *rp = data;
719 struct hci_conn *conn;
721 u8 status = rp->status;
723 bt_dev_dbg(hdev, "status 0x%2.2x", status);
725 handle = le16_to_cpu(rp->handle);
729 conn = hci_conn_hash_lookup_handle(hdev, handle);
735 /* While unexpected, the read_enc_key_size command may fail. The most
736 * secure approach is to then assume the key size is 0 to force a
740 bt_dev_err(hdev, "failed to read key size for handle %u",
742 conn->enc_key_size = 0;
744 conn->enc_key_size = rp->key_size;
748 hci_encrypt_cfm(conn, 0);
751 hci_dev_unlock(hdev);
756 static u8 hci_cc_read_local_commands(struct hci_dev *hdev, void *data,
759 struct hci_rp_read_local_commands *rp = data;
761 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
766 if (hci_dev_test_flag(hdev, HCI_SETUP) ||
767 hci_dev_test_flag(hdev, HCI_CONFIG))
768 memcpy(hdev->commands, rp->commands, sizeof(hdev->commands));
773 static u8 hci_cc_read_auth_payload_timeout(struct hci_dev *hdev, void *data,
776 struct hci_rp_read_auth_payload_to *rp = data;
777 struct hci_conn *conn;
779 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
786 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
788 conn->auth_payload_timeout = __le16_to_cpu(rp->timeout);
790 hci_dev_unlock(hdev);
795 static u8 hci_cc_write_auth_payload_timeout(struct hci_dev *hdev, void *data,
798 struct hci_rp_write_auth_payload_to *rp = data;
799 struct hci_conn *conn;
802 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
807 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_AUTH_PAYLOAD_TO);
813 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
815 conn->auth_payload_timeout = get_unaligned_le16(sent + 2);
817 hci_dev_unlock(hdev);
822 static u8 hci_cc_read_local_features(struct hci_dev *hdev, void *data,
825 struct hci_rp_read_local_features *rp = data;
827 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
832 memcpy(hdev->features, rp->features, 8);
834 /* Adjust default settings according to features
835 * supported by device. */
837 if (hdev->features[0][0] & LMP_3SLOT)
838 hdev->pkt_type |= (HCI_DM3 | HCI_DH3);
840 if (hdev->features[0][0] & LMP_5SLOT)
841 hdev->pkt_type |= (HCI_DM5 | HCI_DH5);
843 if (hdev->features[0][1] & LMP_HV2) {
844 hdev->pkt_type |= (HCI_HV2);
845 hdev->esco_type |= (ESCO_HV2);
848 if (hdev->features[0][1] & LMP_HV3) {
849 hdev->pkt_type |= (HCI_HV3);
850 hdev->esco_type |= (ESCO_HV3);
853 if (lmp_esco_capable(hdev))
854 hdev->esco_type |= (ESCO_EV3);
856 if (hdev->features[0][4] & LMP_EV4)
857 hdev->esco_type |= (ESCO_EV4);
859 if (hdev->features[0][4] & LMP_EV5)
860 hdev->esco_type |= (ESCO_EV5);
862 if (hdev->features[0][5] & LMP_EDR_ESCO_2M)
863 hdev->esco_type |= (ESCO_2EV3);
865 if (hdev->features[0][5] & LMP_EDR_ESCO_3M)
866 hdev->esco_type |= (ESCO_3EV3);
868 if (hdev->features[0][5] & LMP_EDR_3S_ESCO)
869 hdev->esco_type |= (ESCO_2EV5 | ESCO_3EV5);
874 static u8 hci_cc_read_local_ext_features(struct hci_dev *hdev, void *data,
877 struct hci_rp_read_local_ext_features *rp = data;
879 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
884 if (hdev->max_page < rp->max_page) {
885 if (test_bit(HCI_QUIRK_BROKEN_LOCAL_EXT_FEATURES_PAGE_2,
887 bt_dev_warn(hdev, "broken local ext features page 2");
889 hdev->max_page = rp->max_page;
892 if (rp->page < HCI_MAX_PAGES)
893 memcpy(hdev->features[rp->page], rp->features, 8);
898 static u8 hci_cc_read_flow_control_mode(struct hci_dev *hdev, void *data,
901 struct hci_rp_read_flow_control_mode *rp = data;
903 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
908 hdev->flow_ctl_mode = rp->mode;
913 static u8 hci_cc_read_buffer_size(struct hci_dev *hdev, void *data,
916 struct hci_rp_read_buffer_size *rp = data;
918 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
923 hdev->acl_mtu = __le16_to_cpu(rp->acl_mtu);
924 hdev->sco_mtu = rp->sco_mtu;
925 hdev->acl_pkts = __le16_to_cpu(rp->acl_max_pkt);
926 hdev->sco_pkts = __le16_to_cpu(rp->sco_max_pkt);
928 if (test_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks)) {
933 hdev->acl_cnt = hdev->acl_pkts;
934 hdev->sco_cnt = hdev->sco_pkts;
936 BT_DBG("%s acl mtu %d:%d sco mtu %d:%d", hdev->name, hdev->acl_mtu,
937 hdev->acl_pkts, hdev->sco_mtu, hdev->sco_pkts);
942 static u8 hci_cc_read_bd_addr(struct hci_dev *hdev, void *data,
945 struct hci_rp_read_bd_addr *rp = data;
947 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
952 if (test_bit(HCI_INIT, &hdev->flags))
953 bacpy(&hdev->bdaddr, &rp->bdaddr);
955 if (hci_dev_test_flag(hdev, HCI_SETUP))
956 bacpy(&hdev->setup_addr, &rp->bdaddr);
961 static u8 hci_cc_read_local_pairing_opts(struct hci_dev *hdev, void *data,
964 struct hci_rp_read_local_pairing_opts *rp = data;
966 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
971 if (hci_dev_test_flag(hdev, HCI_SETUP) ||
972 hci_dev_test_flag(hdev, HCI_CONFIG)) {
973 hdev->pairing_opts = rp->pairing_opts;
974 hdev->max_enc_key_size = rp->max_key_size;
980 static u8 hci_cc_read_page_scan_activity(struct hci_dev *hdev, void *data,
983 struct hci_rp_read_page_scan_activity *rp = data;
985 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
990 if (test_bit(HCI_INIT, &hdev->flags)) {
991 hdev->page_scan_interval = __le16_to_cpu(rp->interval);
992 hdev->page_scan_window = __le16_to_cpu(rp->window);
998 static u8 hci_cc_write_page_scan_activity(struct hci_dev *hdev, void *data,
1001 struct hci_ev_status *rp = data;
1002 struct hci_cp_write_page_scan_activity *sent;
1004 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1009 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_PAGE_SCAN_ACTIVITY);
1013 hdev->page_scan_interval = __le16_to_cpu(sent->interval);
1014 hdev->page_scan_window = __le16_to_cpu(sent->window);
1019 static u8 hci_cc_read_page_scan_type(struct hci_dev *hdev, void *data,
1020 struct sk_buff *skb)
1022 struct hci_rp_read_page_scan_type *rp = data;
1024 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1029 if (test_bit(HCI_INIT, &hdev->flags))
1030 hdev->page_scan_type = rp->type;
1035 static u8 hci_cc_write_page_scan_type(struct hci_dev *hdev, void *data,
1036 struct sk_buff *skb)
1038 struct hci_ev_status *rp = data;
1041 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1046 type = hci_sent_cmd_data(hdev, HCI_OP_WRITE_PAGE_SCAN_TYPE);
1048 hdev->page_scan_type = *type;
1053 static u8 hci_cc_read_data_block_size(struct hci_dev *hdev, void *data,
1054 struct sk_buff *skb)
1056 struct hci_rp_read_data_block_size *rp = data;
1058 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1063 hdev->block_mtu = __le16_to_cpu(rp->max_acl_len);
1064 hdev->block_len = __le16_to_cpu(rp->block_len);
1065 hdev->num_blocks = __le16_to_cpu(rp->num_blocks);
1067 hdev->block_cnt = hdev->num_blocks;
1069 BT_DBG("%s blk mtu %d cnt %d len %d", hdev->name, hdev->block_mtu,
1070 hdev->block_cnt, hdev->block_len);
1075 static u8 hci_cc_read_clock(struct hci_dev *hdev, void *data,
1076 struct sk_buff *skb)
1078 struct hci_rp_read_clock *rp = data;
1079 struct hci_cp_read_clock *cp;
1080 struct hci_conn *conn;
1082 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1089 cp = hci_sent_cmd_data(hdev, HCI_OP_READ_CLOCK);
1093 if (cp->which == 0x00) {
1094 hdev->clock = le32_to_cpu(rp->clock);
1098 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
1100 conn->clock = le32_to_cpu(rp->clock);
1101 conn->clock_accuracy = le16_to_cpu(rp->accuracy);
1105 hci_dev_unlock(hdev);
1109 static u8 hci_cc_read_local_amp_info(struct hci_dev *hdev, void *data,
1110 struct sk_buff *skb)
1112 struct hci_rp_read_local_amp_info *rp = data;
1114 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1119 hdev->amp_status = rp->amp_status;
1120 hdev->amp_total_bw = __le32_to_cpu(rp->total_bw);
1121 hdev->amp_max_bw = __le32_to_cpu(rp->max_bw);
1122 hdev->amp_min_latency = __le32_to_cpu(rp->min_latency);
1123 hdev->amp_max_pdu = __le32_to_cpu(rp->max_pdu);
1124 hdev->amp_type = rp->amp_type;
1125 hdev->amp_pal_cap = __le16_to_cpu(rp->pal_cap);
1126 hdev->amp_assoc_size = __le16_to_cpu(rp->max_assoc_size);
1127 hdev->amp_be_flush_to = __le32_to_cpu(rp->be_flush_to);
1128 hdev->amp_max_flush_to = __le32_to_cpu(rp->max_flush_to);
1133 static u8 hci_cc_read_inq_rsp_tx_power(struct hci_dev *hdev, void *data,
1134 struct sk_buff *skb)
1136 struct hci_rp_read_inq_rsp_tx_power *rp = data;
1138 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1143 hdev->inq_tx_power = rp->tx_power;
1148 static u8 hci_cc_read_def_err_data_reporting(struct hci_dev *hdev, void *data,
1149 struct sk_buff *skb)
1151 struct hci_rp_read_def_err_data_reporting *rp = data;
1153 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1158 hdev->err_data_reporting = rp->err_data_reporting;
1163 static u8 hci_cc_write_def_err_data_reporting(struct hci_dev *hdev, void *data,
1164 struct sk_buff *skb)
1166 struct hci_ev_status *rp = data;
1167 struct hci_cp_write_def_err_data_reporting *cp;
1169 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1174 cp = hci_sent_cmd_data(hdev, HCI_OP_WRITE_DEF_ERR_DATA_REPORTING);
1178 hdev->err_data_reporting = cp->err_data_reporting;
1183 static u8 hci_cc_pin_code_reply(struct hci_dev *hdev, void *data,
1184 struct sk_buff *skb)
1186 struct hci_rp_pin_code_reply *rp = data;
1187 struct hci_cp_pin_code_reply *cp;
1188 struct hci_conn *conn;
1190 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1194 if (hci_dev_test_flag(hdev, HCI_MGMT))
1195 mgmt_pin_code_reply_complete(hdev, &rp->bdaddr, rp->status);
1200 cp = hci_sent_cmd_data(hdev, HCI_OP_PIN_CODE_REPLY);
1204 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
1206 conn->pin_length = cp->pin_len;
1209 hci_dev_unlock(hdev);
1213 static u8 hci_cc_pin_code_neg_reply(struct hci_dev *hdev, void *data,
1214 struct sk_buff *skb)
1216 struct hci_rp_pin_code_neg_reply *rp = data;
1218 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1222 if (hci_dev_test_flag(hdev, HCI_MGMT))
1223 mgmt_pin_code_neg_reply_complete(hdev, &rp->bdaddr,
1226 hci_dev_unlock(hdev);
1231 static u8 hci_cc_le_read_buffer_size(struct hci_dev *hdev, void *data,
1232 struct sk_buff *skb)
1234 struct hci_rp_le_read_buffer_size *rp = data;
1236 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1241 hdev->le_mtu = __le16_to_cpu(rp->le_mtu);
1242 hdev->le_pkts = rp->le_max_pkt;
1244 hdev->le_cnt = hdev->le_pkts;
1246 BT_DBG("%s le mtu %d:%d", hdev->name, hdev->le_mtu, hdev->le_pkts);
1251 static u8 hci_cc_le_read_local_features(struct hci_dev *hdev, void *data,
1252 struct sk_buff *skb)
1254 struct hci_rp_le_read_local_features *rp = data;
1256 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
1261 memcpy(hdev->le_features, rp->features, 8);
1266 static u8 hci_cc_le_read_adv_tx_power(struct hci_dev *hdev, void *data,
1267 struct sk_buff *skb)
1269 struct hci_rp_le_read_adv_tx_power *rp = data;
1271 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1276 hdev->adv_tx_power = rp->tx_power;
1281 static u8 hci_cc_user_confirm_reply(struct hci_dev *hdev, void *data,
1282 struct sk_buff *skb)
1284 struct hci_rp_user_confirm_reply *rp = data;
1286 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1290 if (hci_dev_test_flag(hdev, HCI_MGMT))
1291 mgmt_user_confirm_reply_complete(hdev, &rp->bdaddr, ACL_LINK, 0,
1294 hci_dev_unlock(hdev);
1299 static u8 hci_cc_user_confirm_neg_reply(struct hci_dev *hdev, void *data,
1300 struct sk_buff *skb)
1302 struct hci_rp_user_confirm_reply *rp = data;
1304 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1308 if (hci_dev_test_flag(hdev, HCI_MGMT))
1309 mgmt_user_confirm_neg_reply_complete(hdev, &rp->bdaddr,
1310 ACL_LINK, 0, rp->status);
1312 hci_dev_unlock(hdev);
1317 static u8 hci_cc_user_passkey_reply(struct hci_dev *hdev, void *data,
1318 struct sk_buff *skb)
1320 struct hci_rp_user_confirm_reply *rp = data;
1322 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1326 if (hci_dev_test_flag(hdev, HCI_MGMT))
1327 mgmt_user_passkey_reply_complete(hdev, &rp->bdaddr, ACL_LINK,
1330 hci_dev_unlock(hdev);
1335 static u8 hci_cc_user_passkey_neg_reply(struct hci_dev *hdev, void *data,
1336 struct sk_buff *skb)
1338 struct hci_rp_user_confirm_reply *rp = data;
1340 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1344 if (hci_dev_test_flag(hdev, HCI_MGMT))
1345 mgmt_user_passkey_neg_reply_complete(hdev, &rp->bdaddr,
1346 ACL_LINK, 0, rp->status);
1348 hci_dev_unlock(hdev);
1353 static u8 hci_cc_read_local_oob_data(struct hci_dev *hdev, void *data,
1354 struct sk_buff *skb)
1356 struct hci_rp_read_local_oob_data *rp = data;
1358 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1363 static u8 hci_cc_read_local_oob_ext_data(struct hci_dev *hdev, void *data,
1364 struct sk_buff *skb)
1366 struct hci_rp_read_local_oob_ext_data *rp = data;
1368 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1373 static u8 hci_cc_le_set_random_addr(struct hci_dev *hdev, void *data,
1374 struct sk_buff *skb)
1376 struct hci_ev_status *rp = data;
1379 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1384 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_RANDOM_ADDR);
1390 bacpy(&hdev->random_addr, sent);
1392 if (!bacmp(&hdev->rpa, sent)) {
1393 hci_dev_clear_flag(hdev, HCI_RPA_EXPIRED);
1394 queue_delayed_work(hdev->workqueue, &hdev->rpa_expired,
1395 secs_to_jiffies(hdev->rpa_timeout));
1398 hci_dev_unlock(hdev);
1403 static u8 hci_cc_le_set_default_phy(struct hci_dev *hdev, void *data,
1404 struct sk_buff *skb)
1406 struct hci_ev_status *rp = data;
1407 struct hci_cp_le_set_default_phy *cp;
1409 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1414 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_DEFAULT_PHY);
1420 hdev->le_tx_def_phys = cp->tx_phys;
1421 hdev->le_rx_def_phys = cp->rx_phys;
1423 hci_dev_unlock(hdev);
1428 static u8 hci_cc_le_set_adv_set_random_addr(struct hci_dev *hdev, void *data,
1429 struct sk_buff *skb)
1431 struct hci_ev_status *rp = data;
1432 struct hci_cp_le_set_adv_set_rand_addr *cp;
1433 struct adv_info *adv;
1435 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1440 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADV_SET_RAND_ADDR);
1441 /* Update only in case the adv instance since handle 0x00 shall be using
1442 * HCI_OP_LE_SET_RANDOM_ADDR since that allows both extended and
1443 * non-extended adverting.
1445 if (!cp || !cp->handle)
1450 adv = hci_find_adv_instance(hdev, cp->handle);
1452 bacpy(&adv->random_addr, &cp->bdaddr);
1453 if (!bacmp(&hdev->rpa, &cp->bdaddr)) {
1454 adv->rpa_expired = false;
1455 queue_delayed_work(hdev->workqueue,
1456 &adv->rpa_expired_cb,
1457 secs_to_jiffies(hdev->rpa_timeout));
1461 hci_dev_unlock(hdev);
1466 static u8 hci_cc_le_remove_adv_set(struct hci_dev *hdev, void *data,
1467 struct sk_buff *skb)
1469 struct hci_ev_status *rp = data;
1473 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1478 instance = hci_sent_cmd_data(hdev, HCI_OP_LE_REMOVE_ADV_SET);
1484 err = hci_remove_adv_instance(hdev, *instance);
1486 mgmt_advertising_removed(hci_skb_sk(hdev->sent_cmd), hdev,
1489 hci_dev_unlock(hdev);
1494 static u8 hci_cc_le_clear_adv_sets(struct hci_dev *hdev, void *data,
1495 struct sk_buff *skb)
1497 struct hci_ev_status *rp = data;
1498 struct adv_info *adv, *n;
1501 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1506 if (!hci_sent_cmd_data(hdev, HCI_OP_LE_CLEAR_ADV_SETS))
1511 list_for_each_entry_safe(adv, n, &hdev->adv_instances, list) {
1512 u8 instance = adv->instance;
1514 err = hci_remove_adv_instance(hdev, instance);
1516 mgmt_advertising_removed(hci_skb_sk(hdev->sent_cmd),
1520 hci_dev_unlock(hdev);
1525 static u8 hci_cc_le_read_transmit_power(struct hci_dev *hdev, void *data,
1526 struct sk_buff *skb)
1528 struct hci_rp_le_read_transmit_power *rp = data;
1530 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1535 hdev->min_le_tx_power = rp->min_le_tx_power;
1536 hdev->max_le_tx_power = rp->max_le_tx_power;
1541 static u8 hci_cc_le_set_privacy_mode(struct hci_dev *hdev, void *data,
1542 struct sk_buff *skb)
1544 struct hci_ev_status *rp = data;
1545 struct hci_cp_le_set_privacy_mode *cp;
1546 struct hci_conn_params *params;
1548 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1553 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_PRIVACY_MODE);
1559 params = hci_conn_params_lookup(hdev, &cp->bdaddr, cp->bdaddr_type);
1561 params->privacy_mode = cp->mode;
1563 hci_dev_unlock(hdev);
1568 static u8 hci_cc_le_set_adv_enable(struct hci_dev *hdev, void *data,
1569 struct sk_buff *skb)
1571 struct hci_ev_status *rp = data;
1574 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1579 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADV_ENABLE);
1585 /* If we're doing connection initiation as peripheral. Set a
1586 * timeout in case something goes wrong.
1589 struct hci_conn *conn;
1591 hci_dev_set_flag(hdev, HCI_LE_ADV);
1593 conn = hci_lookup_le_connect(hdev);
1595 queue_delayed_work(hdev->workqueue,
1596 &conn->le_conn_timeout,
1597 conn->conn_timeout);
1599 hci_dev_clear_flag(hdev, HCI_LE_ADV);
1602 hci_dev_unlock(hdev);
1607 static u8 hci_cc_le_set_ext_adv_enable(struct hci_dev *hdev, void *data,
1608 struct sk_buff *skb)
1610 struct hci_cp_le_set_ext_adv_enable *cp;
1611 struct hci_cp_ext_adv_set *set;
1612 struct adv_info *adv = NULL, *n;
1613 struct hci_ev_status *rp = data;
1615 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1620 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_EXT_ADV_ENABLE);
1624 set = (void *)cp->data;
1628 if (cp->num_of_sets)
1629 adv = hci_find_adv_instance(hdev, set->handle);
1632 struct hci_conn *conn;
1634 hci_dev_set_flag(hdev, HCI_LE_ADV);
1637 adv->enabled = true;
1639 conn = hci_lookup_le_connect(hdev);
1641 queue_delayed_work(hdev->workqueue,
1642 &conn->le_conn_timeout,
1643 conn->conn_timeout);
1645 if (cp->num_of_sets) {
1647 adv->enabled = false;
1649 /* If just one instance was disabled check if there are
1650 * any other instance enabled before clearing HCI_LE_ADV
1652 list_for_each_entry_safe(adv, n, &hdev->adv_instances,
1658 /* All instances shall be considered disabled */
1659 list_for_each_entry_safe(adv, n, &hdev->adv_instances,
1661 adv->enabled = false;
1664 hci_dev_clear_flag(hdev, HCI_LE_ADV);
1668 hci_dev_unlock(hdev);
1672 static u8 hci_cc_le_set_scan_param(struct hci_dev *hdev, void *data,
1673 struct sk_buff *skb)
1675 struct hci_cp_le_set_scan_param *cp;
1676 struct hci_ev_status *rp = data;
1678 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1683 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_SCAN_PARAM);
1689 hdev->le_scan_type = cp->type;
1691 hci_dev_unlock(hdev);
1696 static u8 hci_cc_le_set_ext_scan_param(struct hci_dev *hdev, void *data,
1697 struct sk_buff *skb)
1699 struct hci_cp_le_set_ext_scan_params *cp;
1700 struct hci_ev_status *rp = data;
1701 struct hci_cp_le_scan_phy_params *phy_param;
1703 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1708 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_EXT_SCAN_PARAMS);
1712 phy_param = (void *)cp->data;
1716 hdev->le_scan_type = phy_param->type;
1718 hci_dev_unlock(hdev);
1723 static bool has_pending_adv_report(struct hci_dev *hdev)
1725 struct discovery_state *d = &hdev->discovery;
1727 return bacmp(&d->last_adv_addr, BDADDR_ANY);
1730 static void clear_pending_adv_report(struct hci_dev *hdev)
1732 struct discovery_state *d = &hdev->discovery;
1734 bacpy(&d->last_adv_addr, BDADDR_ANY);
1735 d->last_adv_data_len = 0;
1738 static void store_pending_adv_report(struct hci_dev *hdev, bdaddr_t *bdaddr,
1739 u8 bdaddr_type, s8 rssi, u32 flags,
1742 struct discovery_state *d = &hdev->discovery;
1744 if (len > HCI_MAX_AD_LENGTH)
1747 bacpy(&d->last_adv_addr, bdaddr);
1748 d->last_adv_addr_type = bdaddr_type;
1749 d->last_adv_rssi = rssi;
1750 d->last_adv_flags = flags;
1751 memcpy(d->last_adv_data, data, len);
1752 d->last_adv_data_len = len;
1755 static void le_set_scan_enable_complete(struct hci_dev *hdev, u8 enable)
1760 case LE_SCAN_ENABLE:
1761 hci_dev_set_flag(hdev, HCI_LE_SCAN);
1762 if (hdev->le_scan_type == LE_SCAN_ACTIVE)
1763 clear_pending_adv_report(hdev);
1764 if (hci_dev_test_flag(hdev, HCI_MESH))
1765 hci_discovery_set_state(hdev, DISCOVERY_FINDING);
1768 case LE_SCAN_DISABLE:
1769 /* We do this here instead of when setting DISCOVERY_STOPPED
1770 * since the latter would potentially require waiting for
1771 * inquiry to stop too.
1773 if (has_pending_adv_report(hdev)) {
1774 struct discovery_state *d = &hdev->discovery;
1776 mgmt_device_found(hdev, &d->last_adv_addr, LE_LINK,
1777 d->last_adv_addr_type, NULL,
1778 d->last_adv_rssi, d->last_adv_flags,
1780 d->last_adv_data_len, NULL, 0, 0);
1783 /* Cancel this timer so that we don't try to disable scanning
1784 * when it's already disabled.
1786 cancel_delayed_work(&hdev->le_scan_disable);
1788 hci_dev_clear_flag(hdev, HCI_LE_SCAN);
1790 /* The HCI_LE_SCAN_INTERRUPTED flag indicates that we
1791 * interrupted scanning due to a connect request. Mark
1792 * therefore discovery as stopped.
1794 if (hci_dev_test_and_clear_flag(hdev, HCI_LE_SCAN_INTERRUPTED))
1795 #ifndef TIZEN_BT /* The below line is kernel bug. */
1796 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
1798 hci_le_discovery_set_state(hdev, DISCOVERY_STOPPED);
1800 else if (!hci_dev_test_flag(hdev, HCI_LE_ADV) &&
1801 hdev->discovery.state == DISCOVERY_FINDING)
1802 queue_work(hdev->workqueue, &hdev->reenable_adv_work);
1807 bt_dev_err(hdev, "use of reserved LE_Scan_Enable param %d",
1812 hci_dev_unlock(hdev);
1815 static u8 hci_cc_le_set_scan_enable(struct hci_dev *hdev, void *data,
1816 struct sk_buff *skb)
1818 struct hci_cp_le_set_scan_enable *cp;
1819 struct hci_ev_status *rp = data;
1821 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1826 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_SCAN_ENABLE);
1830 le_set_scan_enable_complete(hdev, cp->enable);
1835 static u8 hci_cc_le_set_ext_scan_enable(struct hci_dev *hdev, void *data,
1836 struct sk_buff *skb)
1838 struct hci_cp_le_set_ext_scan_enable *cp;
1839 struct hci_ev_status *rp = data;
1841 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1846 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_EXT_SCAN_ENABLE);
1850 le_set_scan_enable_complete(hdev, cp->enable);
1855 static u8 hci_cc_le_read_num_adv_sets(struct hci_dev *hdev, void *data,
1856 struct sk_buff *skb)
1858 struct hci_rp_le_read_num_supported_adv_sets *rp = data;
1860 bt_dev_dbg(hdev, "status 0x%2.2x No of Adv sets %u", rp->status,
1866 hdev->le_num_of_adv_sets = rp->num_of_sets;
1871 static u8 hci_cc_le_read_accept_list_size(struct hci_dev *hdev, void *data,
1872 struct sk_buff *skb)
1874 struct hci_rp_le_read_accept_list_size *rp = data;
1876 bt_dev_dbg(hdev, "status 0x%2.2x size %u", rp->status, rp->size);
1881 hdev->le_accept_list_size = rp->size;
1886 static u8 hci_cc_le_clear_accept_list(struct hci_dev *hdev, void *data,
1887 struct sk_buff *skb)
1889 struct hci_ev_status *rp = data;
1891 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1897 hci_bdaddr_list_clear(&hdev->le_accept_list);
1898 hci_dev_unlock(hdev);
1903 static u8 hci_cc_le_add_to_accept_list(struct hci_dev *hdev, void *data,
1904 struct sk_buff *skb)
1906 struct hci_cp_le_add_to_accept_list *sent;
1907 struct hci_ev_status *rp = data;
1909 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1914 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_ADD_TO_ACCEPT_LIST);
1919 hci_bdaddr_list_add(&hdev->le_accept_list, &sent->bdaddr,
1921 hci_dev_unlock(hdev);
1926 static u8 hci_cc_le_del_from_accept_list(struct hci_dev *hdev, void *data,
1927 struct sk_buff *skb)
1929 struct hci_cp_le_del_from_accept_list *sent;
1930 struct hci_ev_status *rp = data;
1932 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1937 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_DEL_FROM_ACCEPT_LIST);
1942 hci_bdaddr_list_del(&hdev->le_accept_list, &sent->bdaddr,
1944 hci_dev_unlock(hdev);
1949 static u8 hci_cc_le_read_supported_states(struct hci_dev *hdev, void *data,
1950 struct sk_buff *skb)
1952 struct hci_rp_le_read_supported_states *rp = data;
1954 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1959 memcpy(hdev->le_states, rp->le_states, 8);
1964 static u8 hci_cc_le_read_def_data_len(struct hci_dev *hdev, void *data,
1965 struct sk_buff *skb)
1967 struct hci_rp_le_read_def_data_len *rp = data;
1969 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1974 hdev->le_def_tx_len = le16_to_cpu(rp->tx_len);
1975 hdev->le_def_tx_time = le16_to_cpu(rp->tx_time);
1980 static u8 hci_cc_le_write_def_data_len(struct hci_dev *hdev, void *data,
1981 struct sk_buff *skb)
1983 struct hci_cp_le_write_def_data_len *sent;
1984 struct hci_ev_status *rp = data;
1986 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1991 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_WRITE_DEF_DATA_LEN);
1995 hdev->le_def_tx_len = le16_to_cpu(sent->tx_len);
1996 hdev->le_def_tx_time = le16_to_cpu(sent->tx_time);
2001 static u8 hci_cc_le_add_to_resolv_list(struct hci_dev *hdev, void *data,
2002 struct sk_buff *skb)
2004 struct hci_cp_le_add_to_resolv_list *sent;
2005 struct hci_ev_status *rp = data;
2007 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2012 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_ADD_TO_RESOLV_LIST);
2017 hci_bdaddr_list_add_with_irk(&hdev->le_resolv_list, &sent->bdaddr,
2018 sent->bdaddr_type, sent->peer_irk,
2020 hci_dev_unlock(hdev);
2025 static u8 hci_cc_le_del_from_resolv_list(struct hci_dev *hdev, void *data,
2026 struct sk_buff *skb)
2028 struct hci_cp_le_del_from_resolv_list *sent;
2029 struct hci_ev_status *rp = data;
2031 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2036 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_DEL_FROM_RESOLV_LIST);
2041 hci_bdaddr_list_del_with_irk(&hdev->le_resolv_list, &sent->bdaddr,
2043 hci_dev_unlock(hdev);
2048 static u8 hci_cc_le_clear_resolv_list(struct hci_dev *hdev, void *data,
2049 struct sk_buff *skb)
2051 struct hci_ev_status *rp = data;
2053 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2059 hci_bdaddr_list_clear(&hdev->le_resolv_list);
2060 hci_dev_unlock(hdev);
2065 static u8 hci_cc_le_read_resolv_list_size(struct hci_dev *hdev, void *data,
2066 struct sk_buff *skb)
2068 struct hci_rp_le_read_resolv_list_size *rp = data;
2070 bt_dev_dbg(hdev, "status 0x%2.2x size %u", rp->status, rp->size);
2075 hdev->le_resolv_list_size = rp->size;
2080 static u8 hci_cc_le_set_addr_resolution_enable(struct hci_dev *hdev, void *data,
2081 struct sk_buff *skb)
2083 struct hci_ev_status *rp = data;
2086 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2091 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADDR_RESOLV_ENABLE);
2098 hci_dev_set_flag(hdev, HCI_LL_RPA_RESOLUTION);
2100 hci_dev_clear_flag(hdev, HCI_LL_RPA_RESOLUTION);
2102 hci_dev_unlock(hdev);
2107 static u8 hci_cc_le_read_max_data_len(struct hci_dev *hdev, void *data,
2108 struct sk_buff *skb)
2110 struct hci_rp_le_read_max_data_len *rp = data;
2112 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2117 hdev->le_max_tx_len = le16_to_cpu(rp->tx_len);
2118 hdev->le_max_tx_time = le16_to_cpu(rp->tx_time);
2119 hdev->le_max_rx_len = le16_to_cpu(rp->rx_len);
2120 hdev->le_max_rx_time = le16_to_cpu(rp->rx_time);
2125 static u8 hci_cc_write_le_host_supported(struct hci_dev *hdev, void *data,
2126 struct sk_buff *skb)
2128 struct hci_cp_write_le_host_supported *sent;
2129 struct hci_ev_status *rp = data;
2131 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2136 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LE_HOST_SUPPORTED);
2143 hdev->features[1][0] |= LMP_HOST_LE;
2144 hci_dev_set_flag(hdev, HCI_LE_ENABLED);
2146 hdev->features[1][0] &= ~LMP_HOST_LE;
2147 hci_dev_clear_flag(hdev, HCI_LE_ENABLED);
2148 hci_dev_clear_flag(hdev, HCI_ADVERTISING);
2152 hdev->features[1][0] |= LMP_HOST_LE_BREDR;
2154 hdev->features[1][0] &= ~LMP_HOST_LE_BREDR;
2156 hci_dev_unlock(hdev);
2161 static u8 hci_cc_set_adv_param(struct hci_dev *hdev, void *data,
2162 struct sk_buff *skb)
2164 struct hci_cp_le_set_adv_param *cp;
2165 struct hci_ev_status *rp = data;
2167 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2172 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADV_PARAM);
2177 hdev->adv_addr_type = cp->own_address_type;
2178 hci_dev_unlock(hdev);
2183 static u8 hci_cc_set_ext_adv_param(struct hci_dev *hdev, void *data,
2184 struct sk_buff *skb)
2186 struct hci_rp_le_set_ext_adv_params *rp = data;
2187 struct hci_cp_le_set_ext_adv_params *cp;
2188 struct adv_info *adv_instance;
2190 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2195 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_EXT_ADV_PARAMS);
2200 hdev->adv_addr_type = cp->own_addr_type;
2202 /* Store in hdev for instance 0 */
2203 hdev->adv_tx_power = rp->tx_power;
2205 adv_instance = hci_find_adv_instance(hdev, cp->handle);
2207 adv_instance->tx_power = rp->tx_power;
2209 /* Update adv data as tx power is known now */
2210 hci_update_adv_data(hdev, cp->handle);
2212 hci_dev_unlock(hdev);
2218 static u8 hci_cc_enable_rssi(struct hci_dev *hdev, void *data,
2219 struct sk_buff *skb)
2221 struct hci_cc_rsp_enable_rssi *rp = data;
2223 BT_DBG("hci_cc_enable_rssi - %s status 0x%2.2x Event_LE_ext_Opcode 0x%2.2x",
2224 hdev->name, rp->status, rp->le_ext_opcode);
2226 mgmt_enable_rssi_cc(hdev, rp, rp->status);
2231 static u8 hci_cc_get_raw_rssi(struct hci_dev *hdev, void *data,
2232 struct sk_buff *skb)
2234 struct hci_cc_rp_get_raw_rssi *rp = data;
2236 BT_DBG("hci_cc_get_raw_rssi- %s Get Raw Rssi Response[%2.2x %4.4x %2.2X]",
2237 hdev->name, rp->status, rp->conn_handle, rp->rssi_dbm);
2239 mgmt_raw_rssi_response(hdev, rp, rp->status);
2244 static void hci_vendor_ext_rssi_link_alert_evt(struct hci_dev *hdev,
2245 struct sk_buff *skb)
2247 struct hci_ev_vendor_specific_rssi_alert *ev = (void *)skb->data;
2249 BT_DBG("RSSI event LE_RSSI_LINK_ALERT %X", LE_RSSI_LINK_ALERT);
2251 mgmt_rssi_alert_evt(hdev, ev->conn_handle, ev->alert_type,
2255 static void hci_vendor_specific_group_ext_evt(struct hci_dev *hdev,
2256 struct sk_buff *skb)
2258 struct hci_ev_ext_vendor_specific *ev = (void *)skb->data;
2259 __u8 event_le_ext_sub_code;
2261 BT_DBG("RSSI event LE_META_VENDOR_SPECIFIC_GROUP_EVENT: %X",
2262 LE_META_VENDOR_SPECIFIC_GROUP_EVENT);
2264 skb_pull(skb, sizeof(*ev));
2265 event_le_ext_sub_code = ev->event_le_ext_sub_code;
2267 switch (event_le_ext_sub_code) {
2268 case LE_RSSI_LINK_ALERT:
2269 hci_vendor_ext_rssi_link_alert_evt(hdev, skb);
2277 static void hci_vendor_specific_evt(struct hci_dev *hdev, void *data,
2278 struct sk_buff *skb)
2280 struct hci_ev_vendor_specific *ev = (void *)skb->data;
2281 __u8 event_sub_code;
2283 BT_DBG("hci_vendor_specific_evt");
2285 skb_pull(skb, sizeof(*ev));
2286 event_sub_code = ev->event_sub_code;
2288 switch (event_sub_code) {
2289 case LE_META_VENDOR_SPECIFIC_GROUP_EVENT:
2290 hci_vendor_specific_group_ext_evt(hdev, skb);
2299 static u8 hci_cc_read_rssi(struct hci_dev *hdev, void *data,
2300 struct sk_buff *skb)
2302 struct hci_rp_read_rssi *rp = data;
2303 struct hci_conn *conn;
2305 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2312 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
2314 conn->rssi = rp->rssi;
2316 hci_dev_unlock(hdev);
2321 static u8 hci_cc_read_tx_power(struct hci_dev *hdev, void *data,
2322 struct sk_buff *skb)
2324 struct hci_cp_read_tx_power *sent;
2325 struct hci_rp_read_tx_power *rp = data;
2326 struct hci_conn *conn;
2328 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2333 sent = hci_sent_cmd_data(hdev, HCI_OP_READ_TX_POWER);
2339 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
2343 switch (sent->type) {
2345 conn->tx_power = rp->tx_power;
2348 conn->max_tx_power = rp->tx_power;
2353 hci_dev_unlock(hdev);
2357 static u8 hci_cc_write_ssp_debug_mode(struct hci_dev *hdev, void *data,
2358 struct sk_buff *skb)
2360 struct hci_ev_status *rp = data;
2363 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2368 mode = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SSP_DEBUG_MODE);
2370 hdev->ssp_debug_mode = *mode;
2375 static void hci_cs_inquiry(struct hci_dev *hdev, __u8 status)
2377 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2380 hci_conn_check_pending(hdev);
2384 set_bit(HCI_INQUIRY, &hdev->flags);
2387 static void hci_cs_create_conn(struct hci_dev *hdev, __u8 status)
2389 struct hci_cp_create_conn *cp;
2390 struct hci_conn *conn;
2392 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2394 cp = hci_sent_cmd_data(hdev, HCI_OP_CREATE_CONN);
2400 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
2402 bt_dev_dbg(hdev, "bdaddr %pMR hcon %p", &cp->bdaddr, conn);
2405 if (conn && conn->state == BT_CONNECT) {
2406 if (status != 0x0c || conn->attempt > 2) {
2407 conn->state = BT_CLOSED;
2408 hci_connect_cfm(conn, status);
2411 conn->state = BT_CONNECT2;
2415 conn = hci_conn_add(hdev, ACL_LINK, &cp->bdaddr,
2418 bt_dev_err(hdev, "no memory for new connection");
2422 hci_dev_unlock(hdev);
2425 static void hci_cs_add_sco(struct hci_dev *hdev, __u8 status)
2427 struct hci_cp_add_sco *cp;
2428 struct hci_conn *acl, *sco;
2431 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2436 cp = hci_sent_cmd_data(hdev, HCI_OP_ADD_SCO);
2440 handle = __le16_to_cpu(cp->handle);
2442 bt_dev_dbg(hdev, "handle 0x%4.4x", handle);
2446 acl = hci_conn_hash_lookup_handle(hdev, handle);
2450 sco->state = BT_CLOSED;
2452 hci_connect_cfm(sco, status);
2457 hci_dev_unlock(hdev);
2460 static void hci_cs_auth_requested(struct hci_dev *hdev, __u8 status)
2462 struct hci_cp_auth_requested *cp;
2463 struct hci_conn *conn;
2465 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2470 cp = hci_sent_cmd_data(hdev, HCI_OP_AUTH_REQUESTED);
2476 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2478 if (conn->state == BT_CONFIG) {
2479 hci_connect_cfm(conn, status);
2480 hci_conn_drop(conn);
2484 hci_dev_unlock(hdev);
2487 static void hci_cs_set_conn_encrypt(struct hci_dev *hdev, __u8 status)
2489 struct hci_cp_set_conn_encrypt *cp;
2490 struct hci_conn *conn;
2492 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2497 cp = hci_sent_cmd_data(hdev, HCI_OP_SET_CONN_ENCRYPT);
2503 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2505 if (conn->state == BT_CONFIG) {
2506 hci_connect_cfm(conn, status);
2507 hci_conn_drop(conn);
2511 hci_dev_unlock(hdev);
2514 static int hci_outgoing_auth_needed(struct hci_dev *hdev,
2515 struct hci_conn *conn)
2517 if (conn->state != BT_CONFIG || !conn->out)
2520 if (conn->pending_sec_level == BT_SECURITY_SDP)
2523 /* Only request authentication for SSP connections or non-SSP
2524 * devices with sec_level MEDIUM or HIGH or if MITM protection
2527 if (!hci_conn_ssp_enabled(conn) && !(conn->auth_type & 0x01) &&
2528 conn->pending_sec_level != BT_SECURITY_FIPS &&
2529 conn->pending_sec_level != BT_SECURITY_HIGH &&
2530 conn->pending_sec_level != BT_SECURITY_MEDIUM)
2536 static int hci_resolve_name(struct hci_dev *hdev,
2537 struct inquiry_entry *e)
2539 struct hci_cp_remote_name_req cp;
2541 memset(&cp, 0, sizeof(cp));
2543 bacpy(&cp.bdaddr, &e->data.bdaddr);
2544 cp.pscan_rep_mode = e->data.pscan_rep_mode;
2545 cp.pscan_mode = e->data.pscan_mode;
2546 cp.clock_offset = e->data.clock_offset;
2548 return hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp);
2551 static bool hci_resolve_next_name(struct hci_dev *hdev)
2553 struct discovery_state *discov = &hdev->discovery;
2554 struct inquiry_entry *e;
2556 if (list_empty(&discov->resolve))
2559 /* We should stop if we already spent too much time resolving names. */
2560 if (time_after(jiffies, discov->name_resolve_timeout)) {
2561 bt_dev_warn_ratelimited(hdev, "Name resolve takes too long.");
2565 e = hci_inquiry_cache_lookup_resolve(hdev, BDADDR_ANY, NAME_NEEDED);
2569 if (hci_resolve_name(hdev, e) == 0) {
2570 e->name_state = NAME_PENDING;
2577 static void hci_check_pending_name(struct hci_dev *hdev, struct hci_conn *conn,
2578 bdaddr_t *bdaddr, u8 *name, u8 name_len)
2580 struct discovery_state *discov = &hdev->discovery;
2581 struct inquiry_entry *e;
2584 /* Update the mgmt connected state if necessary. Be careful with
2585 * conn objects that exist but are not (yet) connected however.
2586 * Only those in BT_CONFIG or BT_CONNECTED states can be
2587 * considered connected.
2590 (conn->state == BT_CONFIG || conn->state == BT_CONNECTED)) {
2591 if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
2592 mgmt_device_connected(hdev, conn, 0, name, name_len);
2594 mgmt_device_name_update(hdev, bdaddr, name, name_len);
2598 (conn->state == BT_CONFIG || conn->state == BT_CONNECTED) &&
2599 !test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
2600 mgmt_device_connected(hdev, conn, name, name_len);
2603 if (discov->state == DISCOVERY_STOPPED)
2606 if (discov->state == DISCOVERY_STOPPING)
2607 goto discov_complete;
2609 if (discov->state != DISCOVERY_RESOLVING)
2612 e = hci_inquiry_cache_lookup_resolve(hdev, bdaddr, NAME_PENDING);
2613 /* If the device was not found in a list of found devices names of which
2614 * are pending. there is no need to continue resolving a next name as it
2615 * will be done upon receiving another Remote Name Request Complete
2622 e->name_state = name ? NAME_KNOWN : NAME_NOT_KNOWN;
2623 mgmt_remote_name(hdev, bdaddr, ACL_LINK, 0x00, e->data.rssi,
2626 if (hci_resolve_next_name(hdev))
2630 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
2633 static void hci_cs_remote_name_req(struct hci_dev *hdev, __u8 status)
2635 struct hci_cp_remote_name_req *cp;
2636 struct hci_conn *conn;
2638 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2640 /* If successful wait for the name req complete event before
2641 * checking for the need to do authentication */
2645 cp = hci_sent_cmd_data(hdev, HCI_OP_REMOTE_NAME_REQ);
2651 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
2653 if (hci_dev_test_flag(hdev, HCI_MGMT))
2654 hci_check_pending_name(hdev, conn, &cp->bdaddr, NULL, 0);
2659 if (!hci_outgoing_auth_needed(hdev, conn))
2662 if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->flags)) {
2663 struct hci_cp_auth_requested auth_cp;
2665 set_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags);
2667 auth_cp.handle = __cpu_to_le16(conn->handle);
2668 hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED,
2669 sizeof(auth_cp), &auth_cp);
2673 hci_dev_unlock(hdev);
2676 static void hci_cs_read_remote_features(struct hci_dev *hdev, __u8 status)
2678 struct hci_cp_read_remote_features *cp;
2679 struct hci_conn *conn;
2681 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2686 cp = hci_sent_cmd_data(hdev, HCI_OP_READ_REMOTE_FEATURES);
2692 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2694 if (conn->state == BT_CONFIG) {
2695 hci_connect_cfm(conn, status);
2696 hci_conn_drop(conn);
2700 hci_dev_unlock(hdev);
2703 static void hci_cs_read_remote_ext_features(struct hci_dev *hdev, __u8 status)
2705 struct hci_cp_read_remote_ext_features *cp;
2706 struct hci_conn *conn;
2708 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2713 cp = hci_sent_cmd_data(hdev, HCI_OP_READ_REMOTE_EXT_FEATURES);
2719 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2721 if (conn->state == BT_CONFIG) {
2722 hci_connect_cfm(conn, status);
2723 hci_conn_drop(conn);
2727 hci_dev_unlock(hdev);
2730 static void hci_cs_setup_sync_conn(struct hci_dev *hdev, __u8 status)
2732 struct hci_cp_setup_sync_conn *cp;
2733 struct hci_conn *acl, *sco;
2736 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2741 cp = hci_sent_cmd_data(hdev, HCI_OP_SETUP_SYNC_CONN);
2745 handle = __le16_to_cpu(cp->handle);
2747 bt_dev_dbg(hdev, "handle 0x%4.4x", handle);
2751 acl = hci_conn_hash_lookup_handle(hdev, handle);
2755 sco->state = BT_CLOSED;
2757 hci_connect_cfm(sco, status);
2762 hci_dev_unlock(hdev);
2765 static void hci_cs_enhanced_setup_sync_conn(struct hci_dev *hdev, __u8 status)
2767 struct hci_cp_enhanced_setup_sync_conn *cp;
2768 struct hci_conn *acl, *sco;
2771 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2776 cp = hci_sent_cmd_data(hdev, HCI_OP_ENHANCED_SETUP_SYNC_CONN);
2780 handle = __le16_to_cpu(cp->handle);
2782 bt_dev_dbg(hdev, "handle 0x%4.4x", handle);
2786 acl = hci_conn_hash_lookup_handle(hdev, handle);
2790 sco->state = BT_CLOSED;
2792 hci_connect_cfm(sco, status);
2797 hci_dev_unlock(hdev);
2800 static void hci_cs_sniff_mode(struct hci_dev *hdev, __u8 status)
2802 struct hci_cp_sniff_mode *cp;
2803 struct hci_conn *conn;
2805 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2810 cp = hci_sent_cmd_data(hdev, HCI_OP_SNIFF_MODE);
2816 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2818 clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->flags);
2820 if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags))
2821 hci_sco_setup(conn, status);
2824 hci_dev_unlock(hdev);
2827 static void hci_cs_exit_sniff_mode(struct hci_dev *hdev, __u8 status)
2829 struct hci_cp_exit_sniff_mode *cp;
2830 struct hci_conn *conn;
2832 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2837 cp = hci_sent_cmd_data(hdev, HCI_OP_EXIT_SNIFF_MODE);
2843 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2845 clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->flags);
2847 if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags))
2848 hci_sco_setup(conn, status);
2851 hci_dev_unlock(hdev);
2854 static void hci_cs_disconnect(struct hci_dev *hdev, u8 status)
2856 struct hci_cp_disconnect *cp;
2857 struct hci_conn_params *params;
2858 struct hci_conn *conn;
2861 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2863 /* Wait for HCI_EV_DISCONN_COMPLETE if status 0x00 and not suspended
2864 * otherwise cleanup the connection immediately.
2866 if (!status && !hdev->suspended)
2869 cp = hci_sent_cmd_data(hdev, HCI_OP_DISCONNECT);
2875 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2880 mgmt_disconnect_failed(hdev, &conn->dst, conn->type,
2881 conn->dst_type, status);
2883 if (conn->type == LE_LINK && conn->role == HCI_ROLE_SLAVE) {
2884 hdev->cur_adv_instance = conn->adv_instance;
2885 hci_enable_advertising(hdev);
2891 mgmt_conn = test_and_clear_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags);
2893 if (conn->type == ACL_LINK) {
2894 if (test_and_clear_bit(HCI_CONN_FLUSH_KEY, &conn->flags))
2895 hci_remove_link_key(hdev, &conn->dst);
2898 params = hci_conn_params_lookup(hdev, &conn->dst, conn->dst_type);
2900 switch (params->auto_connect) {
2901 case HCI_AUTO_CONN_LINK_LOSS:
2902 if (cp->reason != HCI_ERROR_CONNECTION_TIMEOUT)
2906 case HCI_AUTO_CONN_DIRECT:
2907 case HCI_AUTO_CONN_ALWAYS:
2908 list_del_init(¶ms->action);
2909 list_add(¶ms->action, &hdev->pend_le_conns);
2917 mgmt_device_disconnected(hdev, &conn->dst, conn->type, conn->dst_type,
2918 cp->reason, mgmt_conn);
2920 hci_disconn_cfm(conn, cp->reason);
2923 /* If the disconnection failed for any reason, the upper layer
2924 * does not retry to disconnect in current implementation.
2925 * Hence, we need to do some basic cleanup here and re-enable
2926 * advertising if necessary.
2930 hci_dev_unlock(hdev);
2933 static u8 ev_bdaddr_type(struct hci_dev *hdev, u8 type, bool *resolved)
2935 /* When using controller based address resolution, then the new
2936 * address types 0x02 and 0x03 are used. These types need to be
2937 * converted back into either public address or random address type
2940 case ADDR_LE_DEV_PUBLIC_RESOLVED:
2943 return ADDR_LE_DEV_PUBLIC;
2944 case ADDR_LE_DEV_RANDOM_RESOLVED:
2947 return ADDR_LE_DEV_RANDOM;
2955 static void cs_le_create_conn(struct hci_dev *hdev, bdaddr_t *peer_addr,
2956 u8 peer_addr_type, u8 own_address_type,
2959 struct hci_conn *conn;
2961 conn = hci_conn_hash_lookup_le(hdev, peer_addr,
2966 own_address_type = ev_bdaddr_type(hdev, own_address_type, NULL);
2968 /* Store the initiator and responder address information which
2969 * is needed for SMP. These values will not change during the
2970 * lifetime of the connection.
2972 conn->init_addr_type = own_address_type;
2973 if (own_address_type == ADDR_LE_DEV_RANDOM)
2974 bacpy(&conn->init_addr, &hdev->random_addr);
2976 bacpy(&conn->init_addr, &hdev->bdaddr);
2978 conn->resp_addr_type = peer_addr_type;
2979 bacpy(&conn->resp_addr, peer_addr);
2982 static void hci_cs_le_create_conn(struct hci_dev *hdev, u8 status)
2984 struct hci_cp_le_create_conn *cp;
2986 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2988 /* All connection failure handling is taken care of by the
2989 * hci_conn_failed function which is triggered by the HCI
2990 * request completion callbacks used for connecting.
2995 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_CREATE_CONN);
3001 cs_le_create_conn(hdev, &cp->peer_addr, cp->peer_addr_type,
3002 cp->own_address_type, cp->filter_policy);
3004 hci_dev_unlock(hdev);
3007 static void hci_cs_le_ext_create_conn(struct hci_dev *hdev, u8 status)
3009 struct hci_cp_le_ext_create_conn *cp;
3011 bt_dev_dbg(hdev, "status 0x%2.2x", status);
3013 /* All connection failure handling is taken care of by the
3014 * hci_conn_failed function which is triggered by the HCI
3015 * request completion callbacks used for connecting.
3020 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_EXT_CREATE_CONN);
3026 cs_le_create_conn(hdev, &cp->peer_addr, cp->peer_addr_type,
3027 cp->own_addr_type, cp->filter_policy);
3029 hci_dev_unlock(hdev);
3032 static void hci_cs_le_read_remote_features(struct hci_dev *hdev, u8 status)
3034 struct hci_cp_le_read_remote_features *cp;
3035 struct hci_conn *conn;
3037 bt_dev_dbg(hdev, "status 0x%2.2x", status);
3042 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_READ_REMOTE_FEATURES);
3048 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
3050 if (conn->state == BT_CONFIG) {
3051 hci_connect_cfm(conn, status);
3052 hci_conn_drop(conn);
3056 hci_dev_unlock(hdev);
3059 static void hci_cs_le_start_enc(struct hci_dev *hdev, u8 status)
3061 struct hci_cp_le_start_enc *cp;
3062 struct hci_conn *conn;
3064 bt_dev_dbg(hdev, "status 0x%2.2x", status);
3071 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_START_ENC);
3075 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
3079 if (conn->state != BT_CONNECTED)
3082 hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE);
3083 hci_conn_drop(conn);
3086 hci_dev_unlock(hdev);
3089 static void hci_cs_switch_role(struct hci_dev *hdev, u8 status)
3091 struct hci_cp_switch_role *cp;
3092 struct hci_conn *conn;
3094 BT_DBG("%s status 0x%2.2x", hdev->name, status);
3099 cp = hci_sent_cmd_data(hdev, HCI_OP_SWITCH_ROLE);
3105 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
3107 clear_bit(HCI_CONN_RSWITCH_PEND, &conn->flags);
3109 hci_dev_unlock(hdev);
3112 static void hci_inquiry_complete_evt(struct hci_dev *hdev, void *data,
3113 struct sk_buff *skb)
3115 struct hci_ev_status *ev = data;
3116 struct discovery_state *discov = &hdev->discovery;
3117 struct inquiry_entry *e;
3119 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
3121 hci_conn_check_pending(hdev);
3123 if (!test_and_clear_bit(HCI_INQUIRY, &hdev->flags))
3126 smp_mb__after_atomic(); /* wake_up_bit advises about this barrier */
3127 wake_up_bit(&hdev->flags, HCI_INQUIRY);
3129 if (!hci_dev_test_flag(hdev, HCI_MGMT))
3134 if (discov->state != DISCOVERY_FINDING)
3137 if (list_empty(&discov->resolve)) {
3138 /* When BR/EDR inquiry is active and no LE scanning is in
3139 * progress, then change discovery state to indicate completion.
3141 * When running LE scanning and BR/EDR inquiry simultaneously
3142 * and the LE scan already finished, then change the discovery
3143 * state to indicate completion.
3145 if (!hci_dev_test_flag(hdev, HCI_LE_SCAN) ||
3146 !test_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks))
3147 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
3151 e = hci_inquiry_cache_lookup_resolve(hdev, BDADDR_ANY, NAME_NEEDED);
3152 if (e && hci_resolve_name(hdev, e) == 0) {
3153 e->name_state = NAME_PENDING;
3154 hci_discovery_set_state(hdev, DISCOVERY_RESOLVING);
3155 discov->name_resolve_timeout = jiffies + NAME_RESOLVE_DURATION;
3157 /* When BR/EDR inquiry is active and no LE scanning is in
3158 * progress, then change discovery state to indicate completion.
3160 * When running LE scanning and BR/EDR inquiry simultaneously
3161 * and the LE scan already finished, then change the discovery
3162 * state to indicate completion.
3164 if (!hci_dev_test_flag(hdev, HCI_LE_SCAN) ||
3165 !test_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks))
3166 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
3170 hci_dev_unlock(hdev);
3173 static void hci_inquiry_result_evt(struct hci_dev *hdev, void *edata,
3174 struct sk_buff *skb)
3176 struct hci_ev_inquiry_result *ev = edata;
3177 struct inquiry_data data;
3180 if (!hci_ev_skb_pull(hdev, skb, HCI_EV_INQUIRY_RESULT,
3181 flex_array_size(ev, info, ev->num)))
3184 bt_dev_dbg(hdev, "num %d", ev->num);
3189 if (hci_dev_test_flag(hdev, HCI_PERIODIC_INQ))
3194 for (i = 0; i < ev->num; i++) {
3195 struct inquiry_info *info = &ev->info[i];
3198 bacpy(&data.bdaddr, &info->bdaddr);
3199 data.pscan_rep_mode = info->pscan_rep_mode;
3200 data.pscan_period_mode = info->pscan_period_mode;
3201 data.pscan_mode = info->pscan_mode;
3202 memcpy(data.dev_class, info->dev_class, 3);
3203 data.clock_offset = info->clock_offset;
3204 data.rssi = HCI_RSSI_INVALID;
3205 data.ssp_mode = 0x00;
3207 flags = hci_inquiry_cache_update(hdev, &data, false);
3209 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
3210 info->dev_class, HCI_RSSI_INVALID,
3211 flags, NULL, 0, NULL, 0, 0);
3214 hci_dev_unlock(hdev);
3217 static void hci_conn_complete_evt(struct hci_dev *hdev, void *data,
3218 struct sk_buff *skb)
3220 struct hci_ev_conn_complete *ev = data;
3221 struct hci_conn *conn;
3222 u8 status = ev->status;
3224 bt_dev_dbg(hdev, "status 0x%2.2x", status);
3228 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr);
3230 /* In case of error status and there is no connection pending
3231 * just unlock as there is nothing to cleanup.
3236 /* Connection may not exist if auto-connected. Check the bredr
3237 * allowlist to see if this device is allowed to auto connect.
3238 * If link is an ACL type, create a connection class
3241 * Auto-connect will only occur if the event filter is
3242 * programmed with a given address. Right now, event filter is
3243 * only used during suspend.
3245 if (ev->link_type == ACL_LINK &&
3246 hci_bdaddr_list_lookup_with_flags(&hdev->accept_list,
3249 conn = hci_conn_add(hdev, ev->link_type, &ev->bdaddr,
3252 bt_dev_err(hdev, "no memory for new conn");
3256 if (ev->link_type != SCO_LINK)
3259 conn = hci_conn_hash_lookup_ba(hdev, ESCO_LINK,
3264 conn->type = SCO_LINK;
3268 /* The HCI_Connection_Complete event is only sent once per connection.
3269 * Processing it more than once per connection can corrupt kernel memory.
3271 * As the connection handle is set here for the first time, it indicates
3272 * whether the connection is already set up.
3274 if (conn->handle != HCI_CONN_HANDLE_UNSET) {
3275 bt_dev_err(hdev, "Ignoring HCI_Connection_Complete for existing connection");
3280 conn->handle = __le16_to_cpu(ev->handle);
3281 if (conn->handle > HCI_CONN_HANDLE_MAX) {
3282 bt_dev_err(hdev, "Invalid handle: 0x%4.4x > 0x%4.4x",
3283 conn->handle, HCI_CONN_HANDLE_MAX);
3284 status = HCI_ERROR_INVALID_PARAMETERS;
3288 if (conn->type == ACL_LINK) {
3289 conn->state = BT_CONFIG;
3290 hci_conn_hold(conn);
3292 if (!conn->out && !hci_conn_ssp_enabled(conn) &&
3293 !hci_find_link_key(hdev, &ev->bdaddr))
3294 conn->disc_timeout = HCI_PAIRING_TIMEOUT;
3296 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
3298 conn->state = BT_CONNECTED;
3300 hci_debugfs_create_conn(conn);
3301 hci_conn_add_sysfs(conn);
3303 if (test_bit(HCI_AUTH, &hdev->flags))
3304 set_bit(HCI_CONN_AUTH, &conn->flags);
3306 if (test_bit(HCI_ENCRYPT, &hdev->flags))
3307 set_bit(HCI_CONN_ENCRYPT, &conn->flags);
3309 /* Get remote features */
3310 if (conn->type == ACL_LINK) {
3311 struct hci_cp_read_remote_features cp;
3312 cp.handle = ev->handle;
3313 hci_send_cmd(hdev, HCI_OP_READ_REMOTE_FEATURES,
3316 hci_update_scan(hdev);
3319 /* Set packet type for incoming connection */
3320 if (!conn->out && hdev->hci_ver < BLUETOOTH_VER_2_0) {
3321 struct hci_cp_change_conn_ptype cp;
3322 cp.handle = ev->handle;
3323 cp.pkt_type = cpu_to_le16(conn->pkt_type);
3324 hci_send_cmd(hdev, HCI_OP_CHANGE_CONN_PTYPE, sizeof(cp),
3329 if (conn->type == ACL_LINK)
3330 hci_sco_setup(conn, ev->status);
3334 hci_conn_failed(conn, status);
3335 } else if (ev->link_type == SCO_LINK) {
3336 switch (conn->setting & SCO_AIRMODE_MASK) {
3337 case SCO_AIRMODE_CVSD:
3339 hdev->notify(hdev, HCI_NOTIFY_ENABLE_SCO_CVSD);
3343 hci_connect_cfm(conn, status);
3347 hci_dev_unlock(hdev);
3349 hci_conn_check_pending(hdev);
3352 static void hci_reject_conn(struct hci_dev *hdev, bdaddr_t *bdaddr)
3354 struct hci_cp_reject_conn_req cp;
3356 bacpy(&cp.bdaddr, bdaddr);
3357 cp.reason = HCI_ERROR_REJ_BAD_ADDR;
3358 hci_send_cmd(hdev, HCI_OP_REJECT_CONN_REQ, sizeof(cp), &cp);
3361 static void hci_conn_request_evt(struct hci_dev *hdev, void *data,
3362 struct sk_buff *skb)
3364 struct hci_ev_conn_request *ev = data;
3365 int mask = hdev->link_mode;
3366 struct inquiry_entry *ie;
3367 struct hci_conn *conn;
3370 bt_dev_dbg(hdev, "bdaddr %pMR type 0x%x", &ev->bdaddr, ev->link_type);
3372 mask |= hci_proto_connect_ind(hdev, &ev->bdaddr, ev->link_type,
3375 if (!(mask & HCI_LM_ACCEPT)) {
3376 hci_reject_conn(hdev, &ev->bdaddr);
3382 if (hci_bdaddr_list_lookup(&hdev->reject_list, &ev->bdaddr,
3384 hci_reject_conn(hdev, &ev->bdaddr);
3388 /* Require HCI_CONNECTABLE or an accept list entry to accept the
3389 * connection. These features are only touched through mgmt so
3390 * only do the checks if HCI_MGMT is set.
3392 if (hci_dev_test_flag(hdev, HCI_MGMT) &&
3393 !hci_dev_test_flag(hdev, HCI_CONNECTABLE) &&
3394 !hci_bdaddr_list_lookup_with_flags(&hdev->accept_list, &ev->bdaddr,
3396 hci_reject_conn(hdev, &ev->bdaddr);
3400 /* Connection accepted */
3402 ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
3404 memcpy(ie->data.dev_class, ev->dev_class, 3);
3406 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type,
3409 conn = hci_conn_add(hdev, ev->link_type, &ev->bdaddr,
3412 bt_dev_err(hdev, "no memory for new connection");
3417 memcpy(conn->dev_class, ev->dev_class, 3);
3419 hci_dev_unlock(hdev);
3421 if (ev->link_type == ACL_LINK ||
3422 (!(flags & HCI_PROTO_DEFER) && !lmp_esco_capable(hdev))) {
3423 struct hci_cp_accept_conn_req cp;
3424 conn->state = BT_CONNECT;
3426 bacpy(&cp.bdaddr, &ev->bdaddr);
3428 if (lmp_rswitch_capable(hdev) && (mask & HCI_LM_MASTER))
3429 cp.role = 0x00; /* Become central */
3431 cp.role = 0x01; /* Remain peripheral */
3433 hci_send_cmd(hdev, HCI_OP_ACCEPT_CONN_REQ, sizeof(cp), &cp);
3434 } else if (!(flags & HCI_PROTO_DEFER)) {
3435 struct hci_cp_accept_sync_conn_req cp;
3436 conn->state = BT_CONNECT;
3438 bacpy(&cp.bdaddr, &ev->bdaddr);
3439 cp.pkt_type = cpu_to_le16(conn->pkt_type);
3441 cp.tx_bandwidth = cpu_to_le32(0x00001f40);
3442 cp.rx_bandwidth = cpu_to_le32(0x00001f40);
3443 cp.max_latency = cpu_to_le16(0xffff);
3444 cp.content_format = cpu_to_le16(hdev->voice_setting);
3445 cp.retrans_effort = 0xff;
3447 hci_send_cmd(hdev, HCI_OP_ACCEPT_SYNC_CONN_REQ, sizeof(cp),
3450 conn->state = BT_CONNECT2;
3451 hci_connect_cfm(conn, 0);
3456 hci_dev_unlock(hdev);
3459 static u8 hci_to_mgmt_reason(u8 err)
3462 case HCI_ERROR_CONNECTION_TIMEOUT:
3463 return MGMT_DEV_DISCONN_TIMEOUT;
3464 case HCI_ERROR_REMOTE_USER_TERM:
3465 case HCI_ERROR_REMOTE_LOW_RESOURCES:
3466 case HCI_ERROR_REMOTE_POWER_OFF:
3467 return MGMT_DEV_DISCONN_REMOTE;
3468 case HCI_ERROR_LOCAL_HOST_TERM:
3469 return MGMT_DEV_DISCONN_LOCAL_HOST;
3471 return MGMT_DEV_DISCONN_UNKNOWN;
3475 static void hci_disconn_complete_evt(struct hci_dev *hdev, void *data,
3476 struct sk_buff *skb)
3478 struct hci_ev_disconn_complete *ev = data;
3480 struct hci_conn_params *params;
3481 struct hci_conn *conn;
3482 bool mgmt_connected;
3484 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
3488 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3493 mgmt_disconnect_failed(hdev, &conn->dst, conn->type,
3494 conn->dst_type, ev->status);
3498 conn->state = BT_CLOSED;
3500 mgmt_connected = test_and_clear_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags);
3502 if (test_bit(HCI_CONN_AUTH_FAILURE, &conn->flags))
3503 reason = MGMT_DEV_DISCONN_AUTH_FAILURE;
3505 reason = hci_to_mgmt_reason(ev->reason);
3507 mgmt_device_disconnected(hdev, &conn->dst, conn->type, conn->dst_type,
3508 reason, mgmt_connected);
3510 if (conn->type == ACL_LINK) {
3511 if (test_and_clear_bit(HCI_CONN_FLUSH_KEY, &conn->flags))
3512 hci_remove_link_key(hdev, &conn->dst);
3514 hci_update_scan(hdev);
3517 params = hci_conn_params_lookup(hdev, &conn->dst, conn->dst_type);
3519 switch (params->auto_connect) {
3520 case HCI_AUTO_CONN_LINK_LOSS:
3521 if (ev->reason != HCI_ERROR_CONNECTION_TIMEOUT)
3525 case HCI_AUTO_CONN_DIRECT:
3526 case HCI_AUTO_CONN_ALWAYS:
3527 list_del_init(¶ms->action);
3528 list_add(¶ms->action, &hdev->pend_le_conns);
3529 hci_update_passive_scan(hdev);
3537 hci_disconn_cfm(conn, ev->reason);
3539 /* Re-enable advertising if necessary, since it might
3540 * have been disabled by the connection. From the
3541 * HCI_LE_Set_Advertise_Enable command description in
3542 * the core specification (v4.0):
3543 * "The Controller shall continue advertising until the Host
3544 * issues an LE_Set_Advertise_Enable command with
3545 * Advertising_Enable set to 0x00 (Advertising is disabled)
3546 * or until a connection is created or until the Advertising
3547 * is timed out due to Directed Advertising."
3549 if (conn->type == LE_LINK && conn->role == HCI_ROLE_SLAVE) {
3550 hdev->cur_adv_instance = conn->adv_instance;
3551 hci_enable_advertising(hdev);
3557 hci_dev_unlock(hdev);
3560 static void hci_auth_complete_evt(struct hci_dev *hdev, void *data,
3561 struct sk_buff *skb)
3563 struct hci_ev_auth_complete *ev = data;
3564 struct hci_conn *conn;
3566 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
3570 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3575 clear_bit(HCI_CONN_AUTH_FAILURE, &conn->flags);
3577 if (!hci_conn_ssp_enabled(conn) &&
3578 test_bit(HCI_CONN_REAUTH_PEND, &conn->flags)) {
3579 bt_dev_info(hdev, "re-auth of legacy device is not possible.");
3581 set_bit(HCI_CONN_AUTH, &conn->flags);
3582 conn->sec_level = conn->pending_sec_level;
3585 if (ev->status == HCI_ERROR_PIN_OR_KEY_MISSING)
3586 set_bit(HCI_CONN_AUTH_FAILURE, &conn->flags);
3588 mgmt_auth_failed(conn, ev->status);
3591 clear_bit(HCI_CONN_AUTH_PEND, &conn->flags);
3592 clear_bit(HCI_CONN_REAUTH_PEND, &conn->flags);
3594 if (conn->state == BT_CONFIG) {
3595 if (!ev->status && hci_conn_ssp_enabled(conn)) {
3596 struct hci_cp_set_conn_encrypt cp;
3597 cp.handle = ev->handle;
3599 hci_send_cmd(hdev, HCI_OP_SET_CONN_ENCRYPT, sizeof(cp),
3602 conn->state = BT_CONNECTED;
3603 hci_connect_cfm(conn, ev->status);
3604 hci_conn_drop(conn);
3607 hci_auth_cfm(conn, ev->status);
3609 hci_conn_hold(conn);
3610 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
3611 hci_conn_drop(conn);
3614 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) {
3616 struct hci_cp_set_conn_encrypt cp;
3617 cp.handle = ev->handle;
3619 hci_send_cmd(hdev, HCI_OP_SET_CONN_ENCRYPT, sizeof(cp),
3622 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
3623 hci_encrypt_cfm(conn, ev->status);
3628 hci_dev_unlock(hdev);
3631 static void hci_remote_name_evt(struct hci_dev *hdev, void *data,
3632 struct sk_buff *skb)
3634 struct hci_ev_remote_name *ev = data;
3635 struct hci_conn *conn;
3637 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
3639 hci_conn_check_pending(hdev);
3643 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
3645 if (!hci_dev_test_flag(hdev, HCI_MGMT))
3648 if (ev->status == 0)
3649 hci_check_pending_name(hdev, conn, &ev->bdaddr, ev->name,
3650 strnlen(ev->name, HCI_MAX_NAME_LENGTH));
3652 hci_check_pending_name(hdev, conn, &ev->bdaddr, NULL, 0);
3658 if (!hci_outgoing_auth_needed(hdev, conn))
3661 if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->flags)) {
3662 struct hci_cp_auth_requested cp;
3664 set_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags);
3666 cp.handle = __cpu_to_le16(conn->handle);
3667 hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED, sizeof(cp), &cp);
3671 hci_dev_unlock(hdev);
3674 static void hci_encrypt_change_evt(struct hci_dev *hdev, void *data,
3675 struct sk_buff *skb)
3677 struct hci_ev_encrypt_change *ev = data;
3678 struct hci_conn *conn;
3680 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
3684 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3690 /* Encryption implies authentication */
3691 set_bit(HCI_CONN_AUTH, &conn->flags);
3692 set_bit(HCI_CONN_ENCRYPT, &conn->flags);
3693 conn->sec_level = conn->pending_sec_level;
3695 /* P-256 authentication key implies FIPS */
3696 if (conn->key_type == HCI_LK_AUTH_COMBINATION_P256)
3697 set_bit(HCI_CONN_FIPS, &conn->flags);
3699 if ((conn->type == ACL_LINK && ev->encrypt == 0x02) ||
3700 conn->type == LE_LINK)
3701 set_bit(HCI_CONN_AES_CCM, &conn->flags);
3703 clear_bit(HCI_CONN_ENCRYPT, &conn->flags);
3704 clear_bit(HCI_CONN_AES_CCM, &conn->flags);
3708 /* We should disregard the current RPA and generate a new one
3709 * whenever the encryption procedure fails.
3711 if (ev->status && conn->type == LE_LINK) {
3712 hci_dev_set_flag(hdev, HCI_RPA_EXPIRED);
3713 hci_adv_instances_set_rpa_expired(hdev, true);
3716 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
3718 /* Check link security requirements are met */
3719 if (!hci_conn_check_link_mode(conn))
3720 ev->status = HCI_ERROR_AUTH_FAILURE;
3722 if (ev->status && conn->state == BT_CONNECTED) {
3723 if (ev->status == HCI_ERROR_PIN_OR_KEY_MISSING)
3724 set_bit(HCI_CONN_AUTH_FAILURE, &conn->flags);
3726 /* Notify upper layers so they can cleanup before
3729 hci_encrypt_cfm(conn, ev->status);
3730 hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE);
3731 hci_conn_drop(conn);
3735 /* Try reading the encryption key size for encrypted ACL links */
3736 if (!ev->status && ev->encrypt && conn->type == ACL_LINK) {
3737 struct hci_cp_read_enc_key_size cp;
3739 /* Only send HCI_Read_Encryption_Key_Size if the
3740 * controller really supports it. If it doesn't, assume
3741 * the default size (16).
3743 if (!(hdev->commands[20] & 0x10)) {
3744 conn->enc_key_size = HCI_LINK_KEY_SIZE;
3748 cp.handle = cpu_to_le16(conn->handle);
3749 if (hci_send_cmd(hdev, HCI_OP_READ_ENC_KEY_SIZE,
3751 bt_dev_err(hdev, "sending read key size failed");
3752 conn->enc_key_size = HCI_LINK_KEY_SIZE;
3759 /* Set the default Authenticated Payload Timeout after
3760 * an LE Link is established. As per Core Spec v5.0, Vol 2, Part B
3761 * Section 3.3, the HCI command WRITE_AUTH_PAYLOAD_TIMEOUT should be
3762 * sent when the link is active and Encryption is enabled, the conn
3763 * type can be either LE or ACL and controller must support LMP Ping.
3764 * Ensure for AES-CCM encryption as well.
3766 if (test_bit(HCI_CONN_ENCRYPT, &conn->flags) &&
3767 test_bit(HCI_CONN_AES_CCM, &conn->flags) &&
3768 ((conn->type == ACL_LINK && lmp_ping_capable(hdev)) ||
3769 (conn->type == LE_LINK && (hdev->le_features[0] & HCI_LE_PING)))) {
3770 struct hci_cp_write_auth_payload_to cp;
3772 cp.handle = cpu_to_le16(conn->handle);
3773 cp.timeout = cpu_to_le16(hdev->auth_payload_timeout);
3774 hci_send_cmd(conn->hdev, HCI_OP_WRITE_AUTH_PAYLOAD_TO,
3779 hci_encrypt_cfm(conn, ev->status);
3782 hci_dev_unlock(hdev);
3785 static void hci_change_link_key_complete_evt(struct hci_dev *hdev, void *data,
3786 struct sk_buff *skb)
3788 struct hci_ev_change_link_key_complete *ev = data;
3789 struct hci_conn *conn;
3791 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
3795 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3798 set_bit(HCI_CONN_SECURE, &conn->flags);
3800 clear_bit(HCI_CONN_AUTH_PEND, &conn->flags);
3802 hci_key_change_cfm(conn, ev->status);
3805 hci_dev_unlock(hdev);
3808 static void hci_remote_features_evt(struct hci_dev *hdev, void *data,
3809 struct sk_buff *skb)
3811 struct hci_ev_remote_features *ev = data;
3812 struct hci_conn *conn;
3814 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
3818 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3823 memcpy(conn->features[0], ev->features, 8);
3825 if (conn->state != BT_CONFIG)
3828 if (!ev->status && lmp_ext_feat_capable(hdev) &&
3829 lmp_ext_feat_capable(conn)) {
3830 struct hci_cp_read_remote_ext_features cp;
3831 cp.handle = ev->handle;
3833 hci_send_cmd(hdev, HCI_OP_READ_REMOTE_EXT_FEATURES,
3838 if (!ev->status && !test_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags)) {
3839 struct hci_cp_remote_name_req cp;
3840 memset(&cp, 0, sizeof(cp));
3841 bacpy(&cp.bdaddr, &conn->dst);
3842 cp.pscan_rep_mode = 0x02;
3843 hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp);
3844 } else if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
3845 mgmt_device_connected(hdev, conn, NULL, 0);
3847 if (!hci_outgoing_auth_needed(hdev, conn)) {
3848 conn->state = BT_CONNECTED;
3849 hci_connect_cfm(conn, ev->status);
3850 hci_conn_drop(conn);
3854 hci_dev_unlock(hdev);
3857 static inline void handle_cmd_cnt_and_timer(struct hci_dev *hdev, u8 ncmd)
3859 cancel_delayed_work(&hdev->cmd_timer);
3862 if (!test_bit(HCI_RESET, &hdev->flags)) {
3864 cancel_delayed_work(&hdev->ncmd_timer);
3865 atomic_set(&hdev->cmd_cnt, 1);
3867 if (!hci_dev_test_flag(hdev, HCI_CMD_DRAIN_WORKQUEUE))
3868 queue_delayed_work(hdev->workqueue, &hdev->ncmd_timer,
3875 static u8 hci_cc_le_read_buffer_size_v2(struct hci_dev *hdev, void *data,
3876 struct sk_buff *skb)
3878 struct hci_rp_le_read_buffer_size_v2 *rp = data;
3880 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
3885 hdev->le_mtu = __le16_to_cpu(rp->acl_mtu);
3886 hdev->le_pkts = rp->acl_max_pkt;
3887 hdev->iso_mtu = __le16_to_cpu(rp->iso_mtu);
3888 hdev->iso_pkts = rp->iso_max_pkt;
3890 hdev->le_cnt = hdev->le_pkts;
3891 hdev->iso_cnt = hdev->iso_pkts;
3893 BT_DBG("%s acl mtu %d:%d iso mtu %d:%d", hdev->name, hdev->acl_mtu,
3894 hdev->acl_pkts, hdev->iso_mtu, hdev->iso_pkts);
3899 static u8 hci_cc_le_set_cig_params(struct hci_dev *hdev, void *data,
3900 struct sk_buff *skb)
3902 struct hci_rp_le_set_cig_params *rp = data;
3903 struct hci_conn *conn;
3906 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
3911 while ((conn = hci_conn_hash_lookup_cig(hdev, rp->cig_id))) {
3912 conn->state = BT_CLOSED;
3913 hci_connect_cfm(conn, rp->status);
3921 list_for_each_entry_rcu(conn, &hdev->conn_hash.list, list) {
3922 if (conn->type != ISO_LINK || conn->iso_qos.cig != rp->cig_id ||
3923 conn->state == BT_CONNECTED)
3926 conn->handle = __le16_to_cpu(rp->handle[i++]);
3928 bt_dev_dbg(hdev, "%p handle 0x%4.4x link %p", conn,
3929 conn->handle, conn->link);
3931 /* Create CIS if LE is already connected */
3932 if (conn->link && conn->link->state == BT_CONNECTED) {
3934 hci_le_create_cis(conn->link);
3938 if (i == rp->num_handles)
3945 hci_dev_unlock(hdev);
3950 static u8 hci_cc_le_setup_iso_path(struct hci_dev *hdev, void *data,
3951 struct sk_buff *skb)
3953 struct hci_rp_le_setup_iso_path *rp = data;
3954 struct hci_cp_le_setup_iso_path *cp;
3955 struct hci_conn *conn;
3957 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
3959 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SETUP_ISO_PATH);
3965 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
3970 hci_connect_cfm(conn, rp->status);
3975 switch (cp->direction) {
3976 /* Input (Host to Controller) */
3978 /* Only confirm connection if output only */
3979 if (conn->iso_qos.out.sdu && !conn->iso_qos.in.sdu)
3980 hci_connect_cfm(conn, rp->status);
3982 /* Output (Controller to Host) */
3984 /* Confirm connection since conn->iso_qos is always configured
3987 hci_connect_cfm(conn, rp->status);
3992 hci_dev_unlock(hdev);
3996 static void hci_cs_le_create_big(struct hci_dev *hdev, u8 status)
3998 bt_dev_dbg(hdev, "status 0x%2.2x", status);
4001 static u8 hci_cc_set_per_adv_param(struct hci_dev *hdev, void *data,
4002 struct sk_buff *skb)
4004 struct hci_ev_status *rp = data;
4005 struct hci_cp_le_set_per_adv_params *cp;
4007 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
4012 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_PER_ADV_PARAMS);
4016 /* TODO: set the conn state */
4020 static u8 hci_cc_le_set_per_adv_enable(struct hci_dev *hdev, void *data,
4021 struct sk_buff *skb)
4023 struct hci_ev_status *rp = data;
4026 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
4031 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_PER_ADV_ENABLE);
4038 hci_dev_set_flag(hdev, HCI_LE_PER_ADV);
4040 hci_dev_clear_flag(hdev, HCI_LE_PER_ADV);
4042 hci_dev_unlock(hdev);
4047 #define HCI_CC_VL(_op, _func, _min, _max) \
4055 #define HCI_CC(_op, _func, _len) \
4056 HCI_CC_VL(_op, _func, _len, _len)
4058 #define HCI_CC_STATUS(_op, _func) \
4059 HCI_CC(_op, _func, sizeof(struct hci_ev_status))
4061 static const struct hci_cc {
4063 u8 (*func)(struct hci_dev *hdev, void *data, struct sk_buff *skb);
4066 } hci_cc_table[] = {
4067 HCI_CC_STATUS(HCI_OP_INQUIRY_CANCEL, hci_cc_inquiry_cancel),
4068 HCI_CC_STATUS(HCI_OP_PERIODIC_INQ, hci_cc_periodic_inq),
4069 HCI_CC_STATUS(HCI_OP_EXIT_PERIODIC_INQ, hci_cc_exit_periodic_inq),
4070 HCI_CC_STATUS(HCI_OP_REMOTE_NAME_REQ_CANCEL,
4071 hci_cc_remote_name_req_cancel),
4072 HCI_CC(HCI_OP_ROLE_DISCOVERY, hci_cc_role_discovery,
4073 sizeof(struct hci_rp_role_discovery)),
4074 HCI_CC(HCI_OP_READ_LINK_POLICY, hci_cc_read_link_policy,
4075 sizeof(struct hci_rp_read_link_policy)),
4076 HCI_CC(HCI_OP_WRITE_LINK_POLICY, hci_cc_write_link_policy,
4077 sizeof(struct hci_rp_write_link_policy)),
4078 HCI_CC(HCI_OP_READ_DEF_LINK_POLICY, hci_cc_read_def_link_policy,
4079 sizeof(struct hci_rp_read_def_link_policy)),
4080 HCI_CC_STATUS(HCI_OP_WRITE_DEF_LINK_POLICY,
4081 hci_cc_write_def_link_policy),
4082 HCI_CC_STATUS(HCI_OP_RESET, hci_cc_reset),
4083 HCI_CC(HCI_OP_READ_STORED_LINK_KEY, hci_cc_read_stored_link_key,
4084 sizeof(struct hci_rp_read_stored_link_key)),
4085 HCI_CC(HCI_OP_DELETE_STORED_LINK_KEY, hci_cc_delete_stored_link_key,
4086 sizeof(struct hci_rp_delete_stored_link_key)),
4087 HCI_CC_STATUS(HCI_OP_WRITE_LOCAL_NAME, hci_cc_write_local_name),
4088 HCI_CC(HCI_OP_READ_LOCAL_NAME, hci_cc_read_local_name,
4089 sizeof(struct hci_rp_read_local_name)),
4090 HCI_CC_STATUS(HCI_OP_WRITE_AUTH_ENABLE, hci_cc_write_auth_enable),
4091 HCI_CC_STATUS(HCI_OP_WRITE_ENCRYPT_MODE, hci_cc_write_encrypt_mode),
4092 HCI_CC_STATUS(HCI_OP_WRITE_SCAN_ENABLE, hci_cc_write_scan_enable),
4093 HCI_CC_STATUS(HCI_OP_SET_EVENT_FLT, hci_cc_set_event_filter),
4094 HCI_CC(HCI_OP_READ_CLASS_OF_DEV, hci_cc_read_class_of_dev,
4095 sizeof(struct hci_rp_read_class_of_dev)),
4096 HCI_CC_STATUS(HCI_OP_WRITE_CLASS_OF_DEV, hci_cc_write_class_of_dev),
4097 HCI_CC(HCI_OP_READ_VOICE_SETTING, hci_cc_read_voice_setting,
4098 sizeof(struct hci_rp_read_voice_setting)),
4099 HCI_CC_STATUS(HCI_OP_WRITE_VOICE_SETTING, hci_cc_write_voice_setting),
4100 HCI_CC(HCI_OP_READ_NUM_SUPPORTED_IAC, hci_cc_read_num_supported_iac,
4101 sizeof(struct hci_rp_read_num_supported_iac)),
4102 HCI_CC_STATUS(HCI_OP_WRITE_SSP_MODE, hci_cc_write_ssp_mode),
4103 HCI_CC_STATUS(HCI_OP_WRITE_SC_SUPPORT, hci_cc_write_sc_support),
4104 HCI_CC(HCI_OP_READ_AUTH_PAYLOAD_TO, hci_cc_read_auth_payload_timeout,
4105 sizeof(struct hci_rp_read_auth_payload_to)),
4106 HCI_CC(HCI_OP_WRITE_AUTH_PAYLOAD_TO, hci_cc_write_auth_payload_timeout,
4107 sizeof(struct hci_rp_write_auth_payload_to)),
4108 HCI_CC(HCI_OP_READ_LOCAL_VERSION, hci_cc_read_local_version,
4109 sizeof(struct hci_rp_read_local_version)),
4110 HCI_CC(HCI_OP_READ_LOCAL_COMMANDS, hci_cc_read_local_commands,
4111 sizeof(struct hci_rp_read_local_commands)),
4112 HCI_CC(HCI_OP_READ_LOCAL_FEATURES, hci_cc_read_local_features,
4113 sizeof(struct hci_rp_read_local_features)),
4114 HCI_CC(HCI_OP_READ_LOCAL_EXT_FEATURES, hci_cc_read_local_ext_features,
4115 sizeof(struct hci_rp_read_local_ext_features)),
4116 HCI_CC(HCI_OP_READ_BUFFER_SIZE, hci_cc_read_buffer_size,
4117 sizeof(struct hci_rp_read_buffer_size)),
4118 HCI_CC(HCI_OP_READ_BD_ADDR, hci_cc_read_bd_addr,
4119 sizeof(struct hci_rp_read_bd_addr)),
4120 HCI_CC(HCI_OP_READ_LOCAL_PAIRING_OPTS, hci_cc_read_local_pairing_opts,
4121 sizeof(struct hci_rp_read_local_pairing_opts)),
4122 HCI_CC(HCI_OP_READ_PAGE_SCAN_ACTIVITY, hci_cc_read_page_scan_activity,
4123 sizeof(struct hci_rp_read_page_scan_activity)),
4124 HCI_CC_STATUS(HCI_OP_WRITE_PAGE_SCAN_ACTIVITY,
4125 hci_cc_write_page_scan_activity),
4126 HCI_CC(HCI_OP_READ_PAGE_SCAN_TYPE, hci_cc_read_page_scan_type,
4127 sizeof(struct hci_rp_read_page_scan_type)),
4128 HCI_CC_STATUS(HCI_OP_WRITE_PAGE_SCAN_TYPE, hci_cc_write_page_scan_type),
4129 HCI_CC(HCI_OP_READ_DATA_BLOCK_SIZE, hci_cc_read_data_block_size,
4130 sizeof(struct hci_rp_read_data_block_size)),
4131 HCI_CC(HCI_OP_READ_FLOW_CONTROL_MODE, hci_cc_read_flow_control_mode,
4132 sizeof(struct hci_rp_read_flow_control_mode)),
4133 HCI_CC(HCI_OP_READ_LOCAL_AMP_INFO, hci_cc_read_local_amp_info,
4134 sizeof(struct hci_rp_read_local_amp_info)),
4135 HCI_CC(HCI_OP_READ_CLOCK, hci_cc_read_clock,
4136 sizeof(struct hci_rp_read_clock)),
4137 HCI_CC(HCI_OP_READ_ENC_KEY_SIZE, hci_cc_read_enc_key_size,
4138 sizeof(struct hci_rp_read_enc_key_size)),
4139 HCI_CC(HCI_OP_READ_INQ_RSP_TX_POWER, hci_cc_read_inq_rsp_tx_power,
4140 sizeof(struct hci_rp_read_inq_rsp_tx_power)),
4141 HCI_CC(HCI_OP_READ_DEF_ERR_DATA_REPORTING,
4142 hci_cc_read_def_err_data_reporting,
4143 sizeof(struct hci_rp_read_def_err_data_reporting)),
4144 HCI_CC_STATUS(HCI_OP_WRITE_DEF_ERR_DATA_REPORTING,
4145 hci_cc_write_def_err_data_reporting),
4146 HCI_CC(HCI_OP_PIN_CODE_REPLY, hci_cc_pin_code_reply,
4147 sizeof(struct hci_rp_pin_code_reply)),
4148 HCI_CC(HCI_OP_PIN_CODE_NEG_REPLY, hci_cc_pin_code_neg_reply,
4149 sizeof(struct hci_rp_pin_code_neg_reply)),
4150 HCI_CC(HCI_OP_READ_LOCAL_OOB_DATA, hci_cc_read_local_oob_data,
4151 sizeof(struct hci_rp_read_local_oob_data)),
4152 HCI_CC(HCI_OP_READ_LOCAL_OOB_EXT_DATA, hci_cc_read_local_oob_ext_data,
4153 sizeof(struct hci_rp_read_local_oob_ext_data)),
4154 HCI_CC(HCI_OP_LE_READ_BUFFER_SIZE, hci_cc_le_read_buffer_size,
4155 sizeof(struct hci_rp_le_read_buffer_size)),
4156 HCI_CC(HCI_OP_LE_READ_LOCAL_FEATURES, hci_cc_le_read_local_features,
4157 sizeof(struct hci_rp_le_read_local_features)),
4158 HCI_CC(HCI_OP_LE_READ_ADV_TX_POWER, hci_cc_le_read_adv_tx_power,
4159 sizeof(struct hci_rp_le_read_adv_tx_power)),
4160 HCI_CC(HCI_OP_USER_CONFIRM_REPLY, hci_cc_user_confirm_reply,
4161 sizeof(struct hci_rp_user_confirm_reply)),
4162 HCI_CC(HCI_OP_USER_CONFIRM_NEG_REPLY, hci_cc_user_confirm_neg_reply,
4163 sizeof(struct hci_rp_user_confirm_reply)),
4164 HCI_CC(HCI_OP_USER_PASSKEY_REPLY, hci_cc_user_passkey_reply,
4165 sizeof(struct hci_rp_user_confirm_reply)),
4166 HCI_CC(HCI_OP_USER_PASSKEY_NEG_REPLY, hci_cc_user_passkey_neg_reply,
4167 sizeof(struct hci_rp_user_confirm_reply)),
4168 HCI_CC_STATUS(HCI_OP_LE_SET_RANDOM_ADDR, hci_cc_le_set_random_addr),
4169 HCI_CC_STATUS(HCI_OP_LE_SET_ADV_ENABLE, hci_cc_le_set_adv_enable),
4170 HCI_CC_STATUS(HCI_OP_LE_SET_SCAN_PARAM, hci_cc_le_set_scan_param),
4171 HCI_CC_STATUS(HCI_OP_LE_SET_SCAN_ENABLE, hci_cc_le_set_scan_enable),
4172 HCI_CC(HCI_OP_LE_READ_ACCEPT_LIST_SIZE,
4173 hci_cc_le_read_accept_list_size,
4174 sizeof(struct hci_rp_le_read_accept_list_size)),
4175 HCI_CC_STATUS(HCI_OP_LE_CLEAR_ACCEPT_LIST, hci_cc_le_clear_accept_list),
4176 HCI_CC_STATUS(HCI_OP_LE_ADD_TO_ACCEPT_LIST,
4177 hci_cc_le_add_to_accept_list),
4178 HCI_CC_STATUS(HCI_OP_LE_DEL_FROM_ACCEPT_LIST,
4179 hci_cc_le_del_from_accept_list),
4180 HCI_CC(HCI_OP_LE_READ_SUPPORTED_STATES, hci_cc_le_read_supported_states,
4181 sizeof(struct hci_rp_le_read_supported_states)),
4182 HCI_CC(HCI_OP_LE_READ_DEF_DATA_LEN, hci_cc_le_read_def_data_len,
4183 sizeof(struct hci_rp_le_read_def_data_len)),
4184 HCI_CC_STATUS(HCI_OP_LE_WRITE_DEF_DATA_LEN,
4185 hci_cc_le_write_def_data_len),
4186 HCI_CC_STATUS(HCI_OP_LE_ADD_TO_RESOLV_LIST,
4187 hci_cc_le_add_to_resolv_list),
4188 HCI_CC_STATUS(HCI_OP_LE_DEL_FROM_RESOLV_LIST,
4189 hci_cc_le_del_from_resolv_list),
4190 HCI_CC_STATUS(HCI_OP_LE_CLEAR_RESOLV_LIST,
4191 hci_cc_le_clear_resolv_list),
4192 HCI_CC(HCI_OP_LE_READ_RESOLV_LIST_SIZE, hci_cc_le_read_resolv_list_size,
4193 sizeof(struct hci_rp_le_read_resolv_list_size)),
4194 HCI_CC_STATUS(HCI_OP_LE_SET_ADDR_RESOLV_ENABLE,
4195 hci_cc_le_set_addr_resolution_enable),
4196 HCI_CC(HCI_OP_LE_READ_MAX_DATA_LEN, hci_cc_le_read_max_data_len,
4197 sizeof(struct hci_rp_le_read_max_data_len)),
4198 HCI_CC_STATUS(HCI_OP_WRITE_LE_HOST_SUPPORTED,
4199 hci_cc_write_le_host_supported),
4200 HCI_CC_STATUS(HCI_OP_LE_SET_ADV_PARAM, hci_cc_set_adv_param),
4201 HCI_CC(HCI_OP_READ_RSSI, hci_cc_read_rssi,
4202 sizeof(struct hci_rp_read_rssi)),
4203 HCI_CC(HCI_OP_READ_TX_POWER, hci_cc_read_tx_power,
4204 sizeof(struct hci_rp_read_tx_power)),
4205 HCI_CC_STATUS(HCI_OP_WRITE_SSP_DEBUG_MODE, hci_cc_write_ssp_debug_mode),
4206 HCI_CC_STATUS(HCI_OP_LE_SET_EXT_SCAN_PARAMS,
4207 hci_cc_le_set_ext_scan_param),
4208 HCI_CC_STATUS(HCI_OP_LE_SET_EXT_SCAN_ENABLE,
4209 hci_cc_le_set_ext_scan_enable),
4210 HCI_CC_STATUS(HCI_OP_LE_SET_DEFAULT_PHY, hci_cc_le_set_default_phy),
4211 HCI_CC(HCI_OP_LE_READ_NUM_SUPPORTED_ADV_SETS,
4212 hci_cc_le_read_num_adv_sets,
4213 sizeof(struct hci_rp_le_read_num_supported_adv_sets)),
4214 HCI_CC(HCI_OP_LE_SET_EXT_ADV_PARAMS, hci_cc_set_ext_adv_param,
4215 sizeof(struct hci_rp_le_set_ext_adv_params)),
4216 HCI_CC_STATUS(HCI_OP_LE_SET_EXT_ADV_ENABLE,
4217 hci_cc_le_set_ext_adv_enable),
4218 HCI_CC_STATUS(HCI_OP_LE_SET_ADV_SET_RAND_ADDR,
4219 hci_cc_le_set_adv_set_random_addr),
4220 HCI_CC_STATUS(HCI_OP_LE_REMOVE_ADV_SET, hci_cc_le_remove_adv_set),
4221 HCI_CC_STATUS(HCI_OP_LE_CLEAR_ADV_SETS, hci_cc_le_clear_adv_sets),
4222 HCI_CC_STATUS(HCI_OP_LE_SET_PER_ADV_PARAMS, hci_cc_set_per_adv_param),
4223 HCI_CC_STATUS(HCI_OP_LE_SET_PER_ADV_ENABLE,
4224 hci_cc_le_set_per_adv_enable),
4225 HCI_CC(HCI_OP_LE_READ_TRANSMIT_POWER, hci_cc_le_read_transmit_power,
4226 sizeof(struct hci_rp_le_read_transmit_power)),
4228 HCI_CC(HCI_OP_ENABLE_RSSI, hci_cc_enable_rssi,
4229 sizeof(struct hci_cc_rsp_enable_rssi)),
4230 HCI_CC(HCI_OP_GET_RAW_RSSI, hci_cc_get_raw_rssi,
4231 sizeof(struct hci_cc_rp_get_raw_rssi)),
4233 HCI_CC_STATUS(HCI_OP_LE_SET_PRIVACY_MODE, hci_cc_le_set_privacy_mode),
4234 HCI_CC(HCI_OP_LE_READ_BUFFER_SIZE_V2, hci_cc_le_read_buffer_size_v2,
4235 sizeof(struct hci_rp_le_read_buffer_size_v2)),
4236 HCI_CC_VL(HCI_OP_LE_SET_CIG_PARAMS, hci_cc_le_set_cig_params,
4237 sizeof(struct hci_rp_le_set_cig_params), HCI_MAX_EVENT_SIZE),
4238 HCI_CC(HCI_OP_LE_SETUP_ISO_PATH, hci_cc_le_setup_iso_path,
4239 sizeof(struct hci_rp_le_setup_iso_path)),
4242 static u8 hci_cc_func(struct hci_dev *hdev, const struct hci_cc *cc,
4243 struct sk_buff *skb)
4247 if (skb->len < cc->min_len) {
4248 bt_dev_err(hdev, "unexpected cc 0x%4.4x length: %u < %u",
4249 cc->op, skb->len, cc->min_len);
4250 return HCI_ERROR_UNSPECIFIED;
4253 /* Just warn if the length is over max_len size it still be possible to
4254 * partially parse the cc so leave to callback to decide if that is
4257 if (skb->len > cc->max_len)
4258 bt_dev_warn(hdev, "unexpected cc 0x%4.4x length: %u > %u",
4259 cc->op, skb->len, cc->max_len);
4261 data = hci_cc_skb_pull(hdev, skb, cc->op, cc->min_len);
4263 return HCI_ERROR_UNSPECIFIED;
4265 return cc->func(hdev, data, skb);
4268 static void hci_cmd_complete_evt(struct hci_dev *hdev, void *data,
4269 struct sk_buff *skb, u16 *opcode, u8 *status,
4270 hci_req_complete_t *req_complete,
4271 hci_req_complete_skb_t *req_complete_skb)
4273 struct hci_ev_cmd_complete *ev = data;
4276 *opcode = __le16_to_cpu(ev->opcode);
4278 bt_dev_dbg(hdev, "opcode 0x%4.4x", *opcode);
4280 for (i = 0; i < ARRAY_SIZE(hci_cc_table); i++) {
4281 if (hci_cc_table[i].op == *opcode) {
4282 *status = hci_cc_func(hdev, &hci_cc_table[i], skb);
4287 if (i == ARRAY_SIZE(hci_cc_table)) {
4288 /* Unknown opcode, assume byte 0 contains the status, so
4289 * that e.g. __hci_cmd_sync() properly returns errors
4290 * for vendor specific commands send by HCI drivers.
4291 * If a vendor doesn't actually follow this convention we may
4292 * need to introduce a vendor CC table in order to properly set
4295 *status = skb->data[0];
4298 handle_cmd_cnt_and_timer(hdev, ev->ncmd);
4300 hci_req_cmd_complete(hdev, *opcode, *status, req_complete,
4303 if (hci_dev_test_flag(hdev, HCI_CMD_PENDING)) {
4305 "unexpected event for opcode 0x%4.4x", *opcode);
4309 if (atomic_read(&hdev->cmd_cnt) && !skb_queue_empty(&hdev->cmd_q))
4310 queue_work(hdev->workqueue, &hdev->cmd_work);
4313 static void hci_cs_le_create_cis(struct hci_dev *hdev, u8 status)
4315 struct hci_cp_le_create_cis *cp;
4318 bt_dev_dbg(hdev, "status 0x%2.2x", status);
4323 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_CREATE_CIS);
4329 /* Remove connection if command failed */
4330 for (i = 0; cp->num_cis; cp->num_cis--, i++) {
4331 struct hci_conn *conn;
4334 handle = __le16_to_cpu(cp->cis[i].cis_handle);
4336 conn = hci_conn_hash_lookup_handle(hdev, handle);
4338 conn->state = BT_CLOSED;
4339 hci_connect_cfm(conn, status);
4344 hci_dev_unlock(hdev);
4347 #define HCI_CS(_op, _func) \
4353 static const struct hci_cs {
4355 void (*func)(struct hci_dev *hdev, __u8 status);
4356 } hci_cs_table[] = {
4357 HCI_CS(HCI_OP_INQUIRY, hci_cs_inquiry),
4358 HCI_CS(HCI_OP_CREATE_CONN, hci_cs_create_conn),
4359 HCI_CS(HCI_OP_DISCONNECT, hci_cs_disconnect),
4360 HCI_CS(HCI_OP_ADD_SCO, hci_cs_add_sco),
4361 HCI_CS(HCI_OP_AUTH_REQUESTED, hci_cs_auth_requested),
4362 HCI_CS(HCI_OP_SET_CONN_ENCRYPT, hci_cs_set_conn_encrypt),
4363 HCI_CS(HCI_OP_REMOTE_NAME_REQ, hci_cs_remote_name_req),
4364 HCI_CS(HCI_OP_READ_REMOTE_FEATURES, hci_cs_read_remote_features),
4365 HCI_CS(HCI_OP_READ_REMOTE_EXT_FEATURES,
4366 hci_cs_read_remote_ext_features),
4367 HCI_CS(HCI_OP_SETUP_SYNC_CONN, hci_cs_setup_sync_conn),
4368 HCI_CS(HCI_OP_ENHANCED_SETUP_SYNC_CONN,
4369 hci_cs_enhanced_setup_sync_conn),
4370 HCI_CS(HCI_OP_SNIFF_MODE, hci_cs_sniff_mode),
4371 HCI_CS(HCI_OP_EXIT_SNIFF_MODE, hci_cs_exit_sniff_mode),
4372 HCI_CS(HCI_OP_SWITCH_ROLE, hci_cs_switch_role),
4373 HCI_CS(HCI_OP_LE_CREATE_CONN, hci_cs_le_create_conn),
4374 HCI_CS(HCI_OP_LE_READ_REMOTE_FEATURES, hci_cs_le_read_remote_features),
4375 HCI_CS(HCI_OP_LE_START_ENC, hci_cs_le_start_enc),
4376 HCI_CS(HCI_OP_LE_EXT_CREATE_CONN, hci_cs_le_ext_create_conn),
4377 HCI_CS(HCI_OP_LE_CREATE_CIS, hci_cs_le_create_cis),
4378 HCI_CS(HCI_OP_LE_CREATE_BIG, hci_cs_le_create_big),
4381 static void hci_cmd_status_evt(struct hci_dev *hdev, void *data,
4382 struct sk_buff *skb, u16 *opcode, u8 *status,
4383 hci_req_complete_t *req_complete,
4384 hci_req_complete_skb_t *req_complete_skb)
4386 struct hci_ev_cmd_status *ev = data;
4389 *opcode = __le16_to_cpu(ev->opcode);
4390 *status = ev->status;
4392 bt_dev_dbg(hdev, "opcode 0x%4.4x", *opcode);
4394 for (i = 0; i < ARRAY_SIZE(hci_cs_table); i++) {
4395 if (hci_cs_table[i].op == *opcode) {
4396 hci_cs_table[i].func(hdev, ev->status);
4401 handle_cmd_cnt_and_timer(hdev, ev->ncmd);
4403 /* Indicate request completion if the command failed. Also, if
4404 * we're not waiting for a special event and we get a success
4405 * command status we should try to flag the request as completed
4406 * (since for this kind of commands there will not be a command
4409 if (ev->status || (hdev->sent_cmd && !hci_skb_event(hdev->sent_cmd))) {
4410 hci_req_cmd_complete(hdev, *opcode, ev->status, req_complete,
4412 if (hci_dev_test_flag(hdev, HCI_CMD_PENDING)) {
4413 bt_dev_err(hdev, "unexpected event for opcode 0x%4.4x",
4419 if (atomic_read(&hdev->cmd_cnt) && !skb_queue_empty(&hdev->cmd_q))
4420 queue_work(hdev->workqueue, &hdev->cmd_work);
4423 static void hci_hardware_error_evt(struct hci_dev *hdev, void *data,
4424 struct sk_buff *skb)
4426 struct hci_ev_hardware_error *ev = data;
4428 bt_dev_dbg(hdev, "code 0x%2.2x", ev->code);
4432 mgmt_hardware_error(hdev, ev->code);
4433 hci_dev_unlock(hdev);
4435 hdev->hw_error_code = ev->code;
4437 queue_work(hdev->req_workqueue, &hdev->error_reset);
4440 static void hci_role_change_evt(struct hci_dev *hdev, void *data,
4441 struct sk_buff *skb)
4443 struct hci_ev_role_change *ev = data;
4444 struct hci_conn *conn;
4446 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
4450 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
4453 conn->role = ev->role;
4455 clear_bit(HCI_CONN_RSWITCH_PEND, &conn->flags);
4457 hci_role_switch_cfm(conn, ev->status, ev->role);
4460 hci_dev_unlock(hdev);
4463 static void hci_num_comp_pkts_evt(struct hci_dev *hdev, void *data,
4464 struct sk_buff *skb)
4466 struct hci_ev_num_comp_pkts *ev = data;
4469 if (!hci_ev_skb_pull(hdev, skb, HCI_EV_NUM_COMP_PKTS,
4470 flex_array_size(ev, handles, ev->num)))
4473 if (hdev->flow_ctl_mode != HCI_FLOW_CTL_MODE_PACKET_BASED) {
4474 bt_dev_err(hdev, "wrong event for mode %d", hdev->flow_ctl_mode);
4478 bt_dev_dbg(hdev, "num %d", ev->num);
4480 for (i = 0; i < ev->num; i++) {
4481 struct hci_comp_pkts_info *info = &ev->handles[i];
4482 struct hci_conn *conn;
4483 __u16 handle, count;
4485 handle = __le16_to_cpu(info->handle);
4486 count = __le16_to_cpu(info->count);
4488 conn = hci_conn_hash_lookup_handle(hdev, handle);
4492 conn->sent -= count;
4494 switch (conn->type) {
4496 hdev->acl_cnt += count;
4497 if (hdev->acl_cnt > hdev->acl_pkts)
4498 hdev->acl_cnt = hdev->acl_pkts;
4502 if (hdev->le_pkts) {
4503 hdev->le_cnt += count;
4504 if (hdev->le_cnt > hdev->le_pkts)
4505 hdev->le_cnt = hdev->le_pkts;
4507 hdev->acl_cnt += count;
4508 if (hdev->acl_cnt > hdev->acl_pkts)
4509 hdev->acl_cnt = hdev->acl_pkts;
4514 hdev->sco_cnt += count;
4515 if (hdev->sco_cnt > hdev->sco_pkts)
4516 hdev->sco_cnt = hdev->sco_pkts;
4520 if (hdev->iso_pkts) {
4521 hdev->iso_cnt += count;
4522 if (hdev->iso_cnt > hdev->iso_pkts)
4523 hdev->iso_cnt = hdev->iso_pkts;
4524 } else if (hdev->le_pkts) {
4525 hdev->le_cnt += count;
4526 if (hdev->le_cnt > hdev->le_pkts)
4527 hdev->le_cnt = hdev->le_pkts;
4529 hdev->acl_cnt += count;
4530 if (hdev->acl_cnt > hdev->acl_pkts)
4531 hdev->acl_cnt = hdev->acl_pkts;
4536 bt_dev_err(hdev, "unknown type %d conn %p",
4542 queue_work(hdev->workqueue, &hdev->tx_work);
4545 static struct hci_conn *__hci_conn_lookup_handle(struct hci_dev *hdev,
4548 struct hci_chan *chan;
4550 switch (hdev->dev_type) {
4552 return hci_conn_hash_lookup_handle(hdev, handle);
4554 chan = hci_chan_lookup_handle(hdev, handle);
4559 bt_dev_err(hdev, "unknown dev_type %d", hdev->dev_type);
4566 static void hci_num_comp_blocks_evt(struct hci_dev *hdev, void *data,
4567 struct sk_buff *skb)
4569 struct hci_ev_num_comp_blocks *ev = data;
4572 if (!hci_ev_skb_pull(hdev, skb, HCI_EV_NUM_COMP_BLOCKS,
4573 flex_array_size(ev, handles, ev->num_hndl)))
4576 if (hdev->flow_ctl_mode != HCI_FLOW_CTL_MODE_BLOCK_BASED) {
4577 bt_dev_err(hdev, "wrong event for mode %d",
4578 hdev->flow_ctl_mode);
4582 bt_dev_dbg(hdev, "num_blocks %d num_hndl %d", ev->num_blocks,
4585 for (i = 0; i < ev->num_hndl; i++) {
4586 struct hci_comp_blocks_info *info = &ev->handles[i];
4587 struct hci_conn *conn = NULL;
4588 __u16 handle, block_count;
4590 handle = __le16_to_cpu(info->handle);
4591 block_count = __le16_to_cpu(info->blocks);
4593 conn = __hci_conn_lookup_handle(hdev, handle);
4597 conn->sent -= block_count;
4599 switch (conn->type) {
4602 hdev->block_cnt += block_count;
4603 if (hdev->block_cnt > hdev->num_blocks)
4604 hdev->block_cnt = hdev->num_blocks;
4608 bt_dev_err(hdev, "unknown type %d conn %p",
4614 queue_work(hdev->workqueue, &hdev->tx_work);
4617 static void hci_mode_change_evt(struct hci_dev *hdev, void *data,
4618 struct sk_buff *skb)
4620 struct hci_ev_mode_change *ev = data;
4621 struct hci_conn *conn;
4623 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
4627 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
4629 conn->mode = ev->mode;
4631 if (!test_and_clear_bit(HCI_CONN_MODE_CHANGE_PEND,
4633 if (conn->mode == HCI_CM_ACTIVE)
4634 set_bit(HCI_CONN_POWER_SAVE, &conn->flags);
4636 clear_bit(HCI_CONN_POWER_SAVE, &conn->flags);
4639 if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags))
4640 hci_sco_setup(conn, ev->status);
4643 hci_dev_unlock(hdev);
4646 static void hci_pin_code_request_evt(struct hci_dev *hdev, void *data,
4647 struct sk_buff *skb)
4649 struct hci_ev_pin_code_req *ev = data;
4650 struct hci_conn *conn;
4652 bt_dev_dbg(hdev, "");
4656 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
4660 if (conn->state == BT_CONNECTED) {
4661 hci_conn_hold(conn);
4662 conn->disc_timeout = HCI_PAIRING_TIMEOUT;
4663 hci_conn_drop(conn);
4666 if (!hci_dev_test_flag(hdev, HCI_BONDABLE) &&
4667 !test_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags)) {
4668 hci_send_cmd(hdev, HCI_OP_PIN_CODE_NEG_REPLY,
4669 sizeof(ev->bdaddr), &ev->bdaddr);
4670 } else if (hci_dev_test_flag(hdev, HCI_MGMT)) {
4673 if (conn->pending_sec_level == BT_SECURITY_HIGH)
4678 mgmt_pin_code_request(hdev, &ev->bdaddr, secure);
4682 hci_dev_unlock(hdev);
4685 static void conn_set_key(struct hci_conn *conn, u8 key_type, u8 pin_len)
4687 if (key_type == HCI_LK_CHANGED_COMBINATION)
4690 conn->pin_length = pin_len;
4691 conn->key_type = key_type;
4694 case HCI_LK_LOCAL_UNIT:
4695 case HCI_LK_REMOTE_UNIT:
4696 case HCI_LK_DEBUG_COMBINATION:
4698 case HCI_LK_COMBINATION:
4700 conn->pending_sec_level = BT_SECURITY_HIGH;
4702 conn->pending_sec_level = BT_SECURITY_MEDIUM;
4704 case HCI_LK_UNAUTH_COMBINATION_P192:
4705 case HCI_LK_UNAUTH_COMBINATION_P256:
4706 conn->pending_sec_level = BT_SECURITY_MEDIUM;
4708 case HCI_LK_AUTH_COMBINATION_P192:
4709 conn->pending_sec_level = BT_SECURITY_HIGH;
4711 case HCI_LK_AUTH_COMBINATION_P256:
4712 conn->pending_sec_level = BT_SECURITY_FIPS;
4717 static void hci_link_key_request_evt(struct hci_dev *hdev, void *data,
4718 struct sk_buff *skb)
4720 struct hci_ev_link_key_req *ev = data;
4721 struct hci_cp_link_key_reply cp;
4722 struct hci_conn *conn;
4723 struct link_key *key;
4725 bt_dev_dbg(hdev, "");
4727 if (!hci_dev_test_flag(hdev, HCI_MGMT))
4732 key = hci_find_link_key(hdev, &ev->bdaddr);
4734 bt_dev_dbg(hdev, "link key not found for %pMR", &ev->bdaddr);
4738 bt_dev_dbg(hdev, "found key type %u for %pMR", key->type, &ev->bdaddr);
4740 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
4742 clear_bit(HCI_CONN_NEW_LINK_KEY, &conn->flags);
4744 if ((key->type == HCI_LK_UNAUTH_COMBINATION_P192 ||
4745 key->type == HCI_LK_UNAUTH_COMBINATION_P256) &&
4746 conn->auth_type != 0xff && (conn->auth_type & 0x01)) {
4747 bt_dev_dbg(hdev, "ignoring unauthenticated key");
4751 if (key->type == HCI_LK_COMBINATION && key->pin_len < 16 &&
4752 (conn->pending_sec_level == BT_SECURITY_HIGH ||
4753 conn->pending_sec_level == BT_SECURITY_FIPS)) {
4754 bt_dev_dbg(hdev, "ignoring key unauthenticated for high security");
4758 conn_set_key(conn, key->type, key->pin_len);
4761 bacpy(&cp.bdaddr, &ev->bdaddr);
4762 memcpy(cp.link_key, key->val, HCI_LINK_KEY_SIZE);
4764 hci_send_cmd(hdev, HCI_OP_LINK_KEY_REPLY, sizeof(cp), &cp);
4766 hci_dev_unlock(hdev);
4771 hci_send_cmd(hdev, HCI_OP_LINK_KEY_NEG_REPLY, 6, &ev->bdaddr);
4772 hci_dev_unlock(hdev);
4775 static void hci_link_key_notify_evt(struct hci_dev *hdev, void *data,
4776 struct sk_buff *skb)
4778 struct hci_ev_link_key_notify *ev = data;
4779 struct hci_conn *conn;
4780 struct link_key *key;
4784 bt_dev_dbg(hdev, "");
4788 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
4792 hci_conn_hold(conn);
4793 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
4794 hci_conn_drop(conn);
4796 set_bit(HCI_CONN_NEW_LINK_KEY, &conn->flags);
4797 conn_set_key(conn, ev->key_type, conn->pin_length);
4799 if (!hci_dev_test_flag(hdev, HCI_MGMT))
4802 key = hci_add_link_key(hdev, conn, &ev->bdaddr, ev->link_key,
4803 ev->key_type, pin_len, &persistent);
4807 /* Update connection information since adding the key will have
4808 * fixed up the type in the case of changed combination keys.
4810 if (ev->key_type == HCI_LK_CHANGED_COMBINATION)
4811 conn_set_key(conn, key->type, key->pin_len);
4813 mgmt_new_link_key(hdev, key, persistent);
4815 /* Keep debug keys around only if the HCI_KEEP_DEBUG_KEYS flag
4816 * is set. If it's not set simply remove the key from the kernel
4817 * list (we've still notified user space about it but with
4818 * store_hint being 0).
4820 if (key->type == HCI_LK_DEBUG_COMBINATION &&
4821 !hci_dev_test_flag(hdev, HCI_KEEP_DEBUG_KEYS)) {
4822 list_del_rcu(&key->list);
4823 kfree_rcu(key, rcu);
4828 clear_bit(HCI_CONN_FLUSH_KEY, &conn->flags);
4830 set_bit(HCI_CONN_FLUSH_KEY, &conn->flags);
4833 hci_dev_unlock(hdev);
4836 static void hci_clock_offset_evt(struct hci_dev *hdev, void *data,
4837 struct sk_buff *skb)
4839 struct hci_ev_clock_offset *ev = data;
4840 struct hci_conn *conn;
4842 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
4846 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
4847 if (conn && !ev->status) {
4848 struct inquiry_entry *ie;
4850 ie = hci_inquiry_cache_lookup(hdev, &conn->dst);
4852 ie->data.clock_offset = ev->clock_offset;
4853 ie->timestamp = jiffies;
4857 hci_dev_unlock(hdev);
4860 static void hci_pkt_type_change_evt(struct hci_dev *hdev, void *data,
4861 struct sk_buff *skb)
4863 struct hci_ev_pkt_type_change *ev = data;
4864 struct hci_conn *conn;
4866 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
4870 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
4871 if (conn && !ev->status)
4872 conn->pkt_type = __le16_to_cpu(ev->pkt_type);
4874 hci_dev_unlock(hdev);
4877 static void hci_pscan_rep_mode_evt(struct hci_dev *hdev, void *data,
4878 struct sk_buff *skb)
4880 struct hci_ev_pscan_rep_mode *ev = data;
4881 struct inquiry_entry *ie;
4883 bt_dev_dbg(hdev, "");
4887 ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
4889 ie->data.pscan_rep_mode = ev->pscan_rep_mode;
4890 ie->timestamp = jiffies;
4893 hci_dev_unlock(hdev);
4896 static void hci_inquiry_result_with_rssi_evt(struct hci_dev *hdev, void *edata,
4897 struct sk_buff *skb)
4899 struct hci_ev_inquiry_result_rssi *ev = edata;
4900 struct inquiry_data data;
4903 bt_dev_dbg(hdev, "num_rsp %d", ev->num);
4908 if (hci_dev_test_flag(hdev, HCI_PERIODIC_INQ))
4913 if (skb->len == array_size(ev->num,
4914 sizeof(struct inquiry_info_rssi_pscan))) {
4915 struct inquiry_info_rssi_pscan *info;
4917 for (i = 0; i < ev->num; i++) {
4920 info = hci_ev_skb_pull(hdev, skb,
4921 HCI_EV_INQUIRY_RESULT_WITH_RSSI,
4924 bt_dev_err(hdev, "Malformed HCI Event: 0x%2.2x",
4925 HCI_EV_INQUIRY_RESULT_WITH_RSSI);
4929 bacpy(&data.bdaddr, &info->bdaddr);
4930 data.pscan_rep_mode = info->pscan_rep_mode;
4931 data.pscan_period_mode = info->pscan_period_mode;
4932 data.pscan_mode = info->pscan_mode;
4933 memcpy(data.dev_class, info->dev_class, 3);
4934 data.clock_offset = info->clock_offset;
4935 data.rssi = info->rssi;
4936 data.ssp_mode = 0x00;
4938 flags = hci_inquiry_cache_update(hdev, &data, false);
4940 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
4941 info->dev_class, info->rssi,
4942 flags, NULL, 0, NULL, 0, 0);
4944 } else if (skb->len == array_size(ev->num,
4945 sizeof(struct inquiry_info_rssi))) {
4946 struct inquiry_info_rssi *info;
4948 for (i = 0; i < ev->num; i++) {
4951 info = hci_ev_skb_pull(hdev, skb,
4952 HCI_EV_INQUIRY_RESULT_WITH_RSSI,
4955 bt_dev_err(hdev, "Malformed HCI Event: 0x%2.2x",
4956 HCI_EV_INQUIRY_RESULT_WITH_RSSI);
4960 bacpy(&data.bdaddr, &info->bdaddr);
4961 data.pscan_rep_mode = info->pscan_rep_mode;
4962 data.pscan_period_mode = info->pscan_period_mode;
4963 data.pscan_mode = 0x00;
4964 memcpy(data.dev_class, info->dev_class, 3);
4965 data.clock_offset = info->clock_offset;
4966 data.rssi = info->rssi;
4967 data.ssp_mode = 0x00;
4969 flags = hci_inquiry_cache_update(hdev, &data, false);
4971 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
4972 info->dev_class, info->rssi,
4973 flags, NULL, 0, NULL, 0, 0);
4976 bt_dev_err(hdev, "Malformed HCI Event: 0x%2.2x",
4977 HCI_EV_INQUIRY_RESULT_WITH_RSSI);
4980 hci_dev_unlock(hdev);
4983 static void hci_remote_ext_features_evt(struct hci_dev *hdev, void *data,
4984 struct sk_buff *skb)
4986 struct hci_ev_remote_ext_features *ev = data;
4987 struct hci_conn *conn;
4989 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
4993 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
4997 if (ev->page < HCI_MAX_PAGES)
4998 memcpy(conn->features[ev->page], ev->features, 8);
5000 if (!ev->status && ev->page == 0x01) {
5001 struct inquiry_entry *ie;
5003 ie = hci_inquiry_cache_lookup(hdev, &conn->dst);
5005 ie->data.ssp_mode = (ev->features[0] & LMP_HOST_SSP);
5007 if (ev->features[0] & LMP_HOST_SSP) {
5008 set_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
5010 /* It is mandatory by the Bluetooth specification that
5011 * Extended Inquiry Results are only used when Secure
5012 * Simple Pairing is enabled, but some devices violate
5015 * To make these devices work, the internal SSP
5016 * enabled flag needs to be cleared if the remote host
5017 * features do not indicate SSP support */
5018 clear_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
5021 if (ev->features[0] & LMP_HOST_SC)
5022 set_bit(HCI_CONN_SC_ENABLED, &conn->flags);
5025 if (conn->state != BT_CONFIG)
5028 if (!ev->status && !test_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags)) {
5029 struct hci_cp_remote_name_req cp;
5030 memset(&cp, 0, sizeof(cp));
5031 bacpy(&cp.bdaddr, &conn->dst);
5032 cp.pscan_rep_mode = 0x02;
5033 hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp);
5034 } else if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
5035 mgmt_device_connected(hdev, conn, NULL, 0);
5037 if (!hci_outgoing_auth_needed(hdev, conn)) {
5038 conn->state = BT_CONNECTED;
5039 hci_connect_cfm(conn, ev->status);
5040 hci_conn_drop(conn);
5044 hci_dev_unlock(hdev);
5047 static void hci_sync_conn_complete_evt(struct hci_dev *hdev, void *data,
5048 struct sk_buff *skb)
5050 struct hci_ev_sync_conn_complete *ev = data;
5051 struct hci_conn *conn;
5052 u8 status = ev->status;
5054 switch (ev->link_type) {
5059 /* As per Core 5.3 Vol 4 Part E 7.7.35 (p.2219), Link_Type
5060 * for HCI_Synchronous_Connection_Complete is limited to
5061 * either SCO or eSCO
5063 bt_dev_err(hdev, "Ignoring connect complete event for invalid link type");
5067 bt_dev_dbg(hdev, "status 0x%2.2x", status);
5071 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr);
5073 if (ev->link_type == ESCO_LINK)
5076 /* When the link type in the event indicates SCO connection
5077 * and lookup of the connection object fails, then check
5078 * if an eSCO connection object exists.
5080 * The core limits the synchronous connections to either
5081 * SCO or eSCO. The eSCO connection is preferred and tried
5082 * to be setup first and until successfully established,
5083 * the link type will be hinted as eSCO.
5085 conn = hci_conn_hash_lookup_ba(hdev, ESCO_LINK, &ev->bdaddr);
5090 /* The HCI_Synchronous_Connection_Complete event is only sent once per connection.
5091 * Processing it more than once per connection can corrupt kernel memory.
5093 * As the connection handle is set here for the first time, it indicates
5094 * whether the connection is already set up.
5096 if (conn->handle != HCI_CONN_HANDLE_UNSET) {
5097 bt_dev_err(hdev, "Ignoring HCI_Sync_Conn_Complete event for existing connection");
5103 conn->handle = __le16_to_cpu(ev->handle);
5104 if (conn->handle > HCI_CONN_HANDLE_MAX) {
5105 bt_dev_err(hdev, "Invalid handle: 0x%4.4x > 0x%4.4x",
5106 conn->handle, HCI_CONN_HANDLE_MAX);
5107 status = HCI_ERROR_INVALID_PARAMETERS;
5108 conn->state = BT_CLOSED;
5112 conn->state = BT_CONNECTED;
5113 conn->type = ev->link_type;
5115 hci_debugfs_create_conn(conn);
5116 hci_conn_add_sysfs(conn);
5119 case 0x10: /* Connection Accept Timeout */
5120 case 0x0d: /* Connection Rejected due to Limited Resources */
5121 case 0x11: /* Unsupported Feature or Parameter Value */
5122 case 0x1c: /* SCO interval rejected */
5123 case 0x1a: /* Unsupported Remote Feature */
5124 case 0x1e: /* Invalid LMP Parameters */
5125 case 0x1f: /* Unspecified error */
5126 case 0x20: /* Unsupported LMP Parameter value */
5128 conn->pkt_type = (hdev->esco_type & SCO_ESCO_MASK) |
5129 (hdev->esco_type & EDR_ESCO_MASK);
5130 if (hci_setup_sync(conn, conn->link->handle))
5136 conn->state = BT_CLOSED;
5140 bt_dev_dbg(hdev, "SCO connected with air mode: %02x", ev->air_mode);
5141 /* Notify only in case of SCO over HCI transport data path which
5142 * is zero and non-zero value shall be non-HCI transport data path
5144 if (conn->codec.data_path == 0 && hdev->notify) {
5145 switch (ev->air_mode) {
5147 hdev->notify(hdev, HCI_NOTIFY_ENABLE_SCO_CVSD);
5150 hdev->notify(hdev, HCI_NOTIFY_ENABLE_SCO_TRANSP);
5155 hci_connect_cfm(conn, status);
5160 hci_dev_unlock(hdev);
5163 static inline size_t eir_get_length(u8 *eir, size_t eir_len)
5167 while (parsed < eir_len) {
5168 u8 field_len = eir[0];
5173 parsed += field_len + 1;
5174 eir += field_len + 1;
5180 static void hci_extended_inquiry_result_evt(struct hci_dev *hdev, void *edata,
5181 struct sk_buff *skb)
5183 struct hci_ev_ext_inquiry_result *ev = edata;
5184 struct inquiry_data data;
5188 if (!hci_ev_skb_pull(hdev, skb, HCI_EV_EXTENDED_INQUIRY_RESULT,
5189 flex_array_size(ev, info, ev->num)))
5192 bt_dev_dbg(hdev, "num %d", ev->num);
5197 if (hci_dev_test_flag(hdev, HCI_PERIODIC_INQ))
5202 for (i = 0; i < ev->num; i++) {
5203 struct extended_inquiry_info *info = &ev->info[i];
5207 bacpy(&data.bdaddr, &info->bdaddr);
5208 data.pscan_rep_mode = info->pscan_rep_mode;
5209 data.pscan_period_mode = info->pscan_period_mode;
5210 data.pscan_mode = 0x00;
5211 memcpy(data.dev_class, info->dev_class, 3);
5212 data.clock_offset = info->clock_offset;
5213 data.rssi = info->rssi;
5214 data.ssp_mode = 0x01;
5216 if (hci_dev_test_flag(hdev, HCI_MGMT))
5217 name_known = eir_get_data(info->data,
5219 EIR_NAME_COMPLETE, NULL);
5223 flags = hci_inquiry_cache_update(hdev, &data, name_known);
5225 eir_len = eir_get_length(info->data, sizeof(info->data));
5227 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
5228 info->dev_class, info->rssi,
5229 flags, info->data, eir_len, NULL, 0, 0);
5232 hci_dev_unlock(hdev);
5235 static void hci_key_refresh_complete_evt(struct hci_dev *hdev, void *data,
5236 struct sk_buff *skb)
5238 struct hci_ev_key_refresh_complete *ev = data;
5239 struct hci_conn *conn;
5241 bt_dev_dbg(hdev, "status 0x%2.2x handle 0x%4.4x", ev->status,
5242 __le16_to_cpu(ev->handle));
5246 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
5250 /* For BR/EDR the necessary steps are taken through the
5251 * auth_complete event.
5253 if (conn->type != LE_LINK)
5257 conn->sec_level = conn->pending_sec_level;
5259 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
5261 if (ev->status && conn->state == BT_CONNECTED) {
5262 hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE);
5263 hci_conn_drop(conn);
5267 if (conn->state == BT_CONFIG) {
5269 conn->state = BT_CONNECTED;
5271 hci_connect_cfm(conn, ev->status);
5272 hci_conn_drop(conn);
5274 hci_auth_cfm(conn, ev->status);
5276 hci_conn_hold(conn);
5277 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
5278 hci_conn_drop(conn);
5282 hci_dev_unlock(hdev);
5285 static u8 hci_get_auth_req(struct hci_conn *conn)
5287 /* If remote requests no-bonding follow that lead */
5288 if (conn->remote_auth == HCI_AT_NO_BONDING ||
5289 conn->remote_auth == HCI_AT_NO_BONDING_MITM)
5290 return conn->remote_auth | (conn->auth_type & 0x01);
5292 /* If both remote and local have enough IO capabilities, require
5295 if (conn->remote_cap != HCI_IO_NO_INPUT_OUTPUT &&
5296 conn->io_capability != HCI_IO_NO_INPUT_OUTPUT)
5297 return conn->remote_auth | 0x01;
5299 /* No MITM protection possible so ignore remote requirement */
5300 return (conn->remote_auth & ~0x01) | (conn->auth_type & 0x01);
5303 static u8 bredr_oob_data_present(struct hci_conn *conn)
5305 struct hci_dev *hdev = conn->hdev;
5306 struct oob_data *data;
5308 data = hci_find_remote_oob_data(hdev, &conn->dst, BDADDR_BREDR);
5312 if (bredr_sc_enabled(hdev)) {
5313 /* When Secure Connections is enabled, then just
5314 * return the present value stored with the OOB
5315 * data. The stored value contains the right present
5316 * information. However it can only be trusted when
5317 * not in Secure Connection Only mode.
5319 if (!hci_dev_test_flag(hdev, HCI_SC_ONLY))
5320 return data->present;
5322 /* When Secure Connections Only mode is enabled, then
5323 * the P-256 values are required. If they are not
5324 * available, then do not declare that OOB data is
5327 if (!memcmp(data->rand256, ZERO_KEY, 16) ||
5328 !memcmp(data->hash256, ZERO_KEY, 16))
5334 /* When Secure Connections is not enabled or actually
5335 * not supported by the hardware, then check that if
5336 * P-192 data values are present.
5338 if (!memcmp(data->rand192, ZERO_KEY, 16) ||
5339 !memcmp(data->hash192, ZERO_KEY, 16))
5345 static void hci_io_capa_request_evt(struct hci_dev *hdev, void *data,
5346 struct sk_buff *skb)
5348 struct hci_ev_io_capa_request *ev = data;
5349 struct hci_conn *conn;
5351 bt_dev_dbg(hdev, "");
5355 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
5359 hci_conn_hold(conn);
5361 if (!hci_dev_test_flag(hdev, HCI_MGMT))
5364 /* Allow pairing if we're pairable, the initiators of the
5365 * pairing or if the remote is not requesting bonding.
5367 if (hci_dev_test_flag(hdev, HCI_BONDABLE) ||
5368 test_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags) ||
5369 (conn->remote_auth & ~0x01) == HCI_AT_NO_BONDING) {
5370 struct hci_cp_io_capability_reply cp;
5372 bacpy(&cp.bdaddr, &ev->bdaddr);
5373 /* Change the IO capability from KeyboardDisplay
5374 * to DisplayYesNo as it is not supported by BT spec. */
5375 cp.capability = (conn->io_capability == 0x04) ?
5376 HCI_IO_DISPLAY_YESNO : conn->io_capability;
5378 /* If we are initiators, there is no remote information yet */
5379 if (conn->remote_auth == 0xff) {
5380 /* Request MITM protection if our IO caps allow it
5381 * except for the no-bonding case.
5383 if (conn->io_capability != HCI_IO_NO_INPUT_OUTPUT &&
5384 conn->auth_type != HCI_AT_NO_BONDING)
5385 conn->auth_type |= 0x01;
5387 conn->auth_type = hci_get_auth_req(conn);
5390 /* If we're not bondable, force one of the non-bondable
5391 * authentication requirement values.
5393 if (!hci_dev_test_flag(hdev, HCI_BONDABLE))
5394 conn->auth_type &= HCI_AT_NO_BONDING_MITM;
5396 cp.authentication = conn->auth_type;
5397 cp.oob_data = bredr_oob_data_present(conn);
5399 hci_send_cmd(hdev, HCI_OP_IO_CAPABILITY_REPLY,
5402 struct hci_cp_io_capability_neg_reply cp;
5404 bacpy(&cp.bdaddr, &ev->bdaddr);
5405 cp.reason = HCI_ERROR_PAIRING_NOT_ALLOWED;
5407 hci_send_cmd(hdev, HCI_OP_IO_CAPABILITY_NEG_REPLY,
5412 hci_dev_unlock(hdev);
5415 static void hci_io_capa_reply_evt(struct hci_dev *hdev, void *data,
5416 struct sk_buff *skb)
5418 struct hci_ev_io_capa_reply *ev = data;
5419 struct hci_conn *conn;
5421 bt_dev_dbg(hdev, "");
5425 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
5429 conn->remote_cap = ev->capability;
5430 conn->remote_auth = ev->authentication;
5433 hci_dev_unlock(hdev);
5436 static void hci_user_confirm_request_evt(struct hci_dev *hdev, void *data,
5437 struct sk_buff *skb)
5439 struct hci_ev_user_confirm_req *ev = data;
5440 int loc_mitm, rem_mitm, confirm_hint = 0;
5441 struct hci_conn *conn;
5443 bt_dev_dbg(hdev, "");
5447 if (!hci_dev_test_flag(hdev, HCI_MGMT))
5450 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
5454 loc_mitm = (conn->auth_type & 0x01);
5455 rem_mitm = (conn->remote_auth & 0x01);
5457 /* If we require MITM but the remote device can't provide that
5458 * (it has NoInputNoOutput) then reject the confirmation
5459 * request. We check the security level here since it doesn't
5460 * necessarily match conn->auth_type.
5462 if (conn->pending_sec_level > BT_SECURITY_MEDIUM &&
5463 conn->remote_cap == HCI_IO_NO_INPUT_OUTPUT) {
5464 bt_dev_dbg(hdev, "Rejecting request: remote device can't provide MITM");
5465 hci_send_cmd(hdev, HCI_OP_USER_CONFIRM_NEG_REPLY,
5466 sizeof(ev->bdaddr), &ev->bdaddr);
5470 /* If no side requires MITM protection; auto-accept */
5471 if ((!loc_mitm || conn->remote_cap == HCI_IO_NO_INPUT_OUTPUT) &&
5472 (!rem_mitm || conn->io_capability == HCI_IO_NO_INPUT_OUTPUT)) {
5474 /* If we're not the initiators request authorization to
5475 * proceed from user space (mgmt_user_confirm with
5476 * confirm_hint set to 1). The exception is if neither
5477 * side had MITM or if the local IO capability is
5478 * NoInputNoOutput, in which case we do auto-accept
5480 if (!test_bit(HCI_CONN_AUTH_PEND, &conn->flags) &&
5481 conn->io_capability != HCI_IO_NO_INPUT_OUTPUT &&
5482 (loc_mitm || rem_mitm)) {
5483 bt_dev_dbg(hdev, "Confirming auto-accept as acceptor");
5488 /* If there already exists link key in local host, leave the
5489 * decision to user space since the remote device could be
5490 * legitimate or malicious.
5492 if (hci_find_link_key(hdev, &ev->bdaddr)) {
5493 bt_dev_dbg(hdev, "Local host already has link key");
5498 BT_DBG("Auto-accept of user confirmation with %ums delay",
5499 hdev->auto_accept_delay);
5501 if (hdev->auto_accept_delay > 0) {
5502 int delay = msecs_to_jiffies(hdev->auto_accept_delay);
5503 queue_delayed_work(conn->hdev->workqueue,
5504 &conn->auto_accept_work, delay);
5508 hci_send_cmd(hdev, HCI_OP_USER_CONFIRM_REPLY,
5509 sizeof(ev->bdaddr), &ev->bdaddr);
5514 mgmt_user_confirm_request(hdev, &ev->bdaddr, ACL_LINK, 0,
5515 le32_to_cpu(ev->passkey), confirm_hint);
5518 hci_dev_unlock(hdev);
5521 static void hci_user_passkey_request_evt(struct hci_dev *hdev, void *data,
5522 struct sk_buff *skb)
5524 struct hci_ev_user_passkey_req *ev = data;
5526 bt_dev_dbg(hdev, "");
5528 if (hci_dev_test_flag(hdev, HCI_MGMT))
5529 mgmt_user_passkey_request(hdev, &ev->bdaddr, ACL_LINK, 0);
5532 static void hci_user_passkey_notify_evt(struct hci_dev *hdev, void *data,
5533 struct sk_buff *skb)
5535 struct hci_ev_user_passkey_notify *ev = data;
5536 struct hci_conn *conn;
5538 bt_dev_dbg(hdev, "");
5540 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
5544 conn->passkey_notify = __le32_to_cpu(ev->passkey);
5545 conn->passkey_entered = 0;
5547 if (hci_dev_test_flag(hdev, HCI_MGMT))
5548 mgmt_user_passkey_notify(hdev, &conn->dst, conn->type,
5549 conn->dst_type, conn->passkey_notify,
5550 conn->passkey_entered);
5553 static void hci_keypress_notify_evt(struct hci_dev *hdev, void *data,
5554 struct sk_buff *skb)
5556 struct hci_ev_keypress_notify *ev = data;
5557 struct hci_conn *conn;
5559 bt_dev_dbg(hdev, "");
5561 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
5566 case HCI_KEYPRESS_STARTED:
5567 conn->passkey_entered = 0;
5570 case HCI_KEYPRESS_ENTERED:
5571 conn->passkey_entered++;
5574 case HCI_KEYPRESS_ERASED:
5575 conn->passkey_entered--;
5578 case HCI_KEYPRESS_CLEARED:
5579 conn->passkey_entered = 0;
5582 case HCI_KEYPRESS_COMPLETED:
5586 if (hci_dev_test_flag(hdev, HCI_MGMT))
5587 mgmt_user_passkey_notify(hdev, &conn->dst, conn->type,
5588 conn->dst_type, conn->passkey_notify,
5589 conn->passkey_entered);
5592 static void hci_simple_pair_complete_evt(struct hci_dev *hdev, void *data,
5593 struct sk_buff *skb)
5595 struct hci_ev_simple_pair_complete *ev = data;
5596 struct hci_conn *conn;
5598 bt_dev_dbg(hdev, "");
5602 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
5606 /* Reset the authentication requirement to unknown */
5607 conn->remote_auth = 0xff;
5609 /* To avoid duplicate auth_failed events to user space we check
5610 * the HCI_CONN_AUTH_PEND flag which will be set if we
5611 * initiated the authentication. A traditional auth_complete
5612 * event gets always produced as initiator and is also mapped to
5613 * the mgmt_auth_failed event */
5614 if (!test_bit(HCI_CONN_AUTH_PEND, &conn->flags) && ev->status)
5615 mgmt_auth_failed(conn, ev->status);
5617 hci_conn_drop(conn);
5620 hci_dev_unlock(hdev);
5623 static void hci_remote_host_features_evt(struct hci_dev *hdev, void *data,
5624 struct sk_buff *skb)
5626 struct hci_ev_remote_host_features *ev = data;
5627 struct inquiry_entry *ie;
5628 struct hci_conn *conn;
5630 bt_dev_dbg(hdev, "");
5634 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
5636 memcpy(conn->features[1], ev->features, 8);
5638 ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
5640 ie->data.ssp_mode = (ev->features[0] & LMP_HOST_SSP);
5642 hci_dev_unlock(hdev);
5645 static void hci_remote_oob_data_request_evt(struct hci_dev *hdev, void *edata,
5646 struct sk_buff *skb)
5648 struct hci_ev_remote_oob_data_request *ev = edata;
5649 struct oob_data *data;
5651 bt_dev_dbg(hdev, "");
5655 if (!hci_dev_test_flag(hdev, HCI_MGMT))
5658 data = hci_find_remote_oob_data(hdev, &ev->bdaddr, BDADDR_BREDR);
5660 struct hci_cp_remote_oob_data_neg_reply cp;
5662 bacpy(&cp.bdaddr, &ev->bdaddr);
5663 hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_DATA_NEG_REPLY,
5668 if (bredr_sc_enabled(hdev)) {
5669 struct hci_cp_remote_oob_ext_data_reply cp;
5671 bacpy(&cp.bdaddr, &ev->bdaddr);
5672 if (hci_dev_test_flag(hdev, HCI_SC_ONLY)) {
5673 memset(cp.hash192, 0, sizeof(cp.hash192));
5674 memset(cp.rand192, 0, sizeof(cp.rand192));
5676 memcpy(cp.hash192, data->hash192, sizeof(cp.hash192));
5677 memcpy(cp.rand192, data->rand192, sizeof(cp.rand192));
5679 memcpy(cp.hash256, data->hash256, sizeof(cp.hash256));
5680 memcpy(cp.rand256, data->rand256, sizeof(cp.rand256));
5682 hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_EXT_DATA_REPLY,
5685 struct hci_cp_remote_oob_data_reply cp;
5687 bacpy(&cp.bdaddr, &ev->bdaddr);
5688 memcpy(cp.hash, data->hash192, sizeof(cp.hash));
5689 memcpy(cp.rand, data->rand192, sizeof(cp.rand));
5691 hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_DATA_REPLY,
5696 hci_dev_unlock(hdev);
5699 #if IS_ENABLED(CONFIG_BT_HS)
5700 static void hci_chan_selected_evt(struct hci_dev *hdev, void *data,
5701 struct sk_buff *skb)
5703 struct hci_ev_channel_selected *ev = data;
5704 struct hci_conn *hcon;
5706 bt_dev_dbg(hdev, "handle 0x%2.2x", ev->phy_handle);
5708 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
5712 amp_read_loc_assoc_final_data(hdev, hcon);
5715 static void hci_phy_link_complete_evt(struct hci_dev *hdev, void *data,
5716 struct sk_buff *skb)
5718 struct hci_ev_phy_link_complete *ev = data;
5719 struct hci_conn *hcon, *bredr_hcon;
5721 bt_dev_dbg(hdev, "handle 0x%2.2x status 0x%2.2x", ev->phy_handle,
5726 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
5738 bredr_hcon = hcon->amp_mgr->l2cap_conn->hcon;
5740 hcon->state = BT_CONNECTED;
5741 bacpy(&hcon->dst, &bredr_hcon->dst);
5743 hci_conn_hold(hcon);
5744 hcon->disc_timeout = HCI_DISCONN_TIMEOUT;
5745 hci_conn_drop(hcon);
5747 hci_debugfs_create_conn(hcon);
5748 hci_conn_add_sysfs(hcon);
5750 amp_physical_cfm(bredr_hcon, hcon);
5753 hci_dev_unlock(hdev);
5756 static void hci_loglink_complete_evt(struct hci_dev *hdev, void *data,
5757 struct sk_buff *skb)
5759 struct hci_ev_logical_link_complete *ev = data;
5760 struct hci_conn *hcon;
5761 struct hci_chan *hchan;
5762 struct amp_mgr *mgr;
5764 bt_dev_dbg(hdev, "log_handle 0x%4.4x phy_handle 0x%2.2x status 0x%2.2x",
5765 le16_to_cpu(ev->handle), ev->phy_handle, ev->status);
5767 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
5771 /* Create AMP hchan */
5772 hchan = hci_chan_create(hcon);
5776 hchan->handle = le16_to_cpu(ev->handle);
5779 BT_DBG("hcon %p mgr %p hchan %p", hcon, hcon->amp_mgr, hchan);
5781 mgr = hcon->amp_mgr;
5782 if (mgr && mgr->bredr_chan) {
5783 struct l2cap_chan *bredr_chan = mgr->bredr_chan;
5785 l2cap_chan_lock(bredr_chan);
5787 bredr_chan->conn->mtu = hdev->block_mtu;
5788 l2cap_logical_cfm(bredr_chan, hchan, 0);
5789 hci_conn_hold(hcon);
5791 l2cap_chan_unlock(bredr_chan);
5795 static void hci_disconn_loglink_complete_evt(struct hci_dev *hdev, void *data,
5796 struct sk_buff *skb)
5798 struct hci_ev_disconn_logical_link_complete *ev = data;
5799 struct hci_chan *hchan;
5801 bt_dev_dbg(hdev, "handle 0x%4.4x status 0x%2.2x",
5802 le16_to_cpu(ev->handle), ev->status);
5809 hchan = hci_chan_lookup_handle(hdev, le16_to_cpu(ev->handle));
5810 if (!hchan || !hchan->amp)
5813 amp_destroy_logical_link(hchan, ev->reason);
5816 hci_dev_unlock(hdev);
5819 static void hci_disconn_phylink_complete_evt(struct hci_dev *hdev, void *data,
5820 struct sk_buff *skb)
5822 struct hci_ev_disconn_phy_link_complete *ev = data;
5823 struct hci_conn *hcon;
5825 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
5832 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
5833 if (hcon && hcon->type == AMP_LINK) {
5834 hcon->state = BT_CLOSED;
5835 hci_disconn_cfm(hcon, ev->reason);
5839 hci_dev_unlock(hdev);
5843 static void le_conn_update_addr(struct hci_conn *conn, bdaddr_t *bdaddr,
5844 u8 bdaddr_type, bdaddr_t *local_rpa)
5847 conn->dst_type = bdaddr_type;
5848 conn->resp_addr_type = bdaddr_type;
5849 bacpy(&conn->resp_addr, bdaddr);
5851 /* Check if the controller has set a Local RPA then it must be
5852 * used instead or hdev->rpa.
5854 if (local_rpa && bacmp(local_rpa, BDADDR_ANY)) {
5855 conn->init_addr_type = ADDR_LE_DEV_RANDOM;
5856 bacpy(&conn->init_addr, local_rpa);
5857 } else if (hci_dev_test_flag(conn->hdev, HCI_PRIVACY)) {
5858 conn->init_addr_type = ADDR_LE_DEV_RANDOM;
5859 bacpy(&conn->init_addr, &conn->hdev->rpa);
5861 hci_copy_identity_address(conn->hdev, &conn->init_addr,
5862 &conn->init_addr_type);
5865 conn->resp_addr_type = conn->hdev->adv_addr_type;
5866 /* Check if the controller has set a Local RPA then it must be
5867 * used instead or hdev->rpa.
5869 if (local_rpa && bacmp(local_rpa, BDADDR_ANY)) {
5870 conn->resp_addr_type = ADDR_LE_DEV_RANDOM;
5871 bacpy(&conn->resp_addr, local_rpa);
5872 } else if (conn->hdev->adv_addr_type == ADDR_LE_DEV_RANDOM) {
5873 /* In case of ext adv, resp_addr will be updated in
5874 * Adv Terminated event.
5876 if (!ext_adv_capable(conn->hdev))
5877 bacpy(&conn->resp_addr,
5878 &conn->hdev->random_addr);
5880 bacpy(&conn->resp_addr, &conn->hdev->bdaddr);
5883 conn->init_addr_type = bdaddr_type;
5884 bacpy(&conn->init_addr, bdaddr);
5886 /* For incoming connections, set the default minimum
5887 * and maximum connection interval. They will be used
5888 * to check if the parameters are in range and if not
5889 * trigger the connection update procedure.
5891 conn->le_conn_min_interval = conn->hdev->le_conn_min_interval;
5892 conn->le_conn_max_interval = conn->hdev->le_conn_max_interval;
5896 static void le_conn_complete_evt(struct hci_dev *hdev, u8 status,
5897 bdaddr_t *bdaddr, u8 bdaddr_type,
5898 bdaddr_t *local_rpa, u8 role, u16 handle,
5899 u16 interval, u16 latency,
5900 u16 supervision_timeout)
5902 struct hci_conn_params *params;
5903 struct hci_conn *conn;
5904 struct smp_irk *irk;
5909 /* All controllers implicitly stop advertising in the event of a
5910 * connection, so ensure that the state bit is cleared.
5912 hci_dev_clear_flag(hdev, HCI_LE_ADV);
5914 conn = hci_conn_hash_lookup_ba(hdev, LE_LINK, bdaddr);
5916 /* In case of error status and there is no connection pending
5917 * just unlock as there is nothing to cleanup.
5922 conn = hci_conn_add(hdev, LE_LINK, bdaddr, role);
5924 bt_dev_err(hdev, "no memory for new connection");
5928 conn->dst_type = bdaddr_type;
5930 /* If we didn't have a hci_conn object previously
5931 * but we're in central role this must be something
5932 * initiated using an accept list. Since accept list based
5933 * connections are not "first class citizens" we don't
5934 * have full tracking of them. Therefore, we go ahead
5935 * with a "best effort" approach of determining the
5936 * initiator address based on the HCI_PRIVACY flag.
5939 conn->resp_addr_type = bdaddr_type;
5940 bacpy(&conn->resp_addr, bdaddr);
5941 if (hci_dev_test_flag(hdev, HCI_PRIVACY)) {
5942 conn->init_addr_type = ADDR_LE_DEV_RANDOM;
5943 bacpy(&conn->init_addr, &hdev->rpa);
5945 hci_copy_identity_address(hdev,
5947 &conn->init_addr_type);
5951 cancel_delayed_work(&conn->le_conn_timeout);
5954 /* The HCI_LE_Connection_Complete event is only sent once per connection.
5955 * Processing it more than once per connection can corrupt kernel memory.
5957 * As the connection handle is set here for the first time, it indicates
5958 * whether the connection is already set up.
5960 if (conn->handle != HCI_CONN_HANDLE_UNSET) {
5961 bt_dev_err(hdev, "Ignoring HCI_Connection_Complete for existing connection");
5965 le_conn_update_addr(conn, bdaddr, bdaddr_type, local_rpa);
5967 /* Lookup the identity address from the stored connection
5968 * address and address type.
5970 * When establishing connections to an identity address, the
5971 * connection procedure will store the resolvable random
5972 * address first. Now if it can be converted back into the
5973 * identity address, start using the identity address from
5976 irk = hci_get_irk(hdev, &conn->dst, conn->dst_type);
5978 bacpy(&conn->dst, &irk->bdaddr);
5979 conn->dst_type = irk->addr_type;
5982 conn->dst_type = ev_bdaddr_type(hdev, conn->dst_type, NULL);
5984 if (handle > HCI_CONN_HANDLE_MAX) {
5985 bt_dev_err(hdev, "Invalid handle: 0x%4.4x > 0x%4.4x", handle,
5986 HCI_CONN_HANDLE_MAX);
5987 status = HCI_ERROR_INVALID_PARAMETERS;
5990 /* All connection failure handling is taken care of by the
5991 * hci_conn_failed function which is triggered by the HCI
5992 * request completion callbacks used for connecting.
5997 /* Drop the connection if it has been aborted */
5998 if (test_bit(HCI_CONN_CANCEL, &conn->flags)) {
5999 hci_conn_drop(conn);
6003 if (conn->dst_type == ADDR_LE_DEV_PUBLIC)
6004 addr_type = BDADDR_LE_PUBLIC;
6006 addr_type = BDADDR_LE_RANDOM;
6008 /* Drop the connection if the device is blocked */
6009 if (hci_bdaddr_list_lookup(&hdev->reject_list, &conn->dst, addr_type)) {
6010 hci_conn_drop(conn);
6014 if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
6015 mgmt_device_connected(hdev, conn, NULL, 0);
6017 conn->sec_level = BT_SECURITY_LOW;
6018 conn->handle = handle;
6019 conn->state = BT_CONFIG;
6021 /* Store current advertising instance as connection advertising instance
6022 * when sotfware rotation is in use so it can be re-enabled when
6025 if (!ext_adv_capable(hdev))
6026 conn->adv_instance = hdev->cur_adv_instance;
6028 conn->le_conn_interval = interval;
6029 conn->le_conn_latency = latency;
6030 conn->le_supv_timeout = supervision_timeout;
6032 hci_debugfs_create_conn(conn);
6033 hci_conn_add_sysfs(conn);
6035 /* The remote features procedure is defined for central
6036 * role only. So only in case of an initiated connection
6037 * request the remote features.
6039 * If the local controller supports peripheral-initiated features
6040 * exchange, then requesting the remote features in peripheral
6041 * role is possible. Otherwise just transition into the
6042 * connected state without requesting the remote features.
6045 (hdev->le_features[0] & HCI_LE_PERIPHERAL_FEATURES)) {
6046 struct hci_cp_le_read_remote_features cp;
6048 cp.handle = __cpu_to_le16(conn->handle);
6050 hci_send_cmd(hdev, HCI_OP_LE_READ_REMOTE_FEATURES,
6053 hci_conn_hold(conn);
6055 conn->state = BT_CONNECTED;
6056 hci_connect_cfm(conn, status);
6059 params = hci_pend_le_action_lookup(&hdev->pend_le_conns, &conn->dst,
6062 list_del_init(¶ms->action);
6064 hci_conn_drop(params->conn);
6065 hci_conn_put(params->conn);
6066 params->conn = NULL;
6071 hci_update_passive_scan(hdev);
6072 hci_dev_unlock(hdev);
6075 static void hci_le_conn_complete_evt(struct hci_dev *hdev, void *data,
6076 struct sk_buff *skb)
6078 struct hci_ev_le_conn_complete *ev = data;
6080 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
6082 le_conn_complete_evt(hdev, ev->status, &ev->bdaddr, ev->bdaddr_type,
6083 NULL, ev->role, le16_to_cpu(ev->handle),
6084 le16_to_cpu(ev->interval),
6085 le16_to_cpu(ev->latency),
6086 le16_to_cpu(ev->supervision_timeout));
6089 static void hci_le_enh_conn_complete_evt(struct hci_dev *hdev, void *data,
6090 struct sk_buff *skb)
6092 struct hci_ev_le_enh_conn_complete *ev = data;
6094 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
6096 le_conn_complete_evt(hdev, ev->status, &ev->bdaddr, ev->bdaddr_type,
6097 &ev->local_rpa, ev->role, le16_to_cpu(ev->handle),
6098 le16_to_cpu(ev->interval),
6099 le16_to_cpu(ev->latency),
6100 le16_to_cpu(ev->supervision_timeout));
6103 static void hci_le_ext_adv_term_evt(struct hci_dev *hdev, void *data,
6104 struct sk_buff *skb)
6106 struct hci_evt_le_ext_adv_set_term *ev = data;
6107 struct hci_conn *conn;
6108 struct adv_info *adv, *n;
6110 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
6112 /* The Bluetooth Core 5.3 specification clearly states that this event
6113 * shall not be sent when the Host disables the advertising set. So in
6114 * case of HCI_ERROR_CANCELLED_BY_HOST, just ignore the event.
6116 * When the Host disables an advertising set, all cleanup is done via
6117 * its command callback and not needed to be duplicated here.
6119 if (ev->status == HCI_ERROR_CANCELLED_BY_HOST) {
6120 bt_dev_warn_ratelimited(hdev, "Unexpected advertising set terminated event");
6126 adv = hci_find_adv_instance(hdev, ev->handle);
6132 /* Remove advertising as it has been terminated */
6133 hci_remove_adv_instance(hdev, ev->handle);
6134 mgmt_advertising_removed(NULL, hdev, ev->handle);
6136 list_for_each_entry_safe(adv, n, &hdev->adv_instances, list) {
6141 /* We are no longer advertising, clear HCI_LE_ADV */
6142 hci_dev_clear_flag(hdev, HCI_LE_ADV);
6147 adv->enabled = false;
6149 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->conn_handle));
6151 /* Store handle in the connection so the correct advertising
6152 * instance can be re-enabled when disconnected.
6154 conn->adv_instance = ev->handle;
6156 if (hdev->adv_addr_type != ADDR_LE_DEV_RANDOM ||
6157 bacmp(&conn->resp_addr, BDADDR_ANY))
6161 bacpy(&conn->resp_addr, &hdev->random_addr);
6166 bacpy(&conn->resp_addr, &adv->random_addr);
6170 hci_dev_unlock(hdev);
6173 static void hci_le_conn_update_complete_evt(struct hci_dev *hdev, void *data,
6174 struct sk_buff *skb)
6176 struct hci_ev_le_conn_update_complete *ev = data;
6177 struct hci_conn *conn;
6179 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
6186 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
6190 hci_dev_unlock(hdev);
6191 mgmt_le_conn_update_failed(hdev, &conn->dst,
6192 conn->type, conn->dst_type, ev->status);
6196 conn->le_conn_interval = le16_to_cpu(ev->interval);
6197 conn->le_conn_latency = le16_to_cpu(ev->latency);
6198 conn->le_supv_timeout = le16_to_cpu(ev->supervision_timeout);
6201 hci_dev_unlock(hdev);
6204 mgmt_le_conn_updated(hdev, &conn->dst, conn->type,
6205 conn->dst_type, conn->le_conn_interval,
6206 conn->le_conn_latency, conn->le_supv_timeout);
6210 /* This function requires the caller holds hdev->lock */
6211 static struct hci_conn *check_pending_le_conn(struct hci_dev *hdev,
6213 u8 addr_type, bool addr_resolved,
6216 struct hci_conn *conn;
6217 struct hci_conn_params *params;
6219 /* If the event is not connectable don't proceed further */
6220 if (adv_type != LE_ADV_IND && adv_type != LE_ADV_DIRECT_IND)
6223 /* Ignore if the device is blocked or hdev is suspended */
6224 if (hci_bdaddr_list_lookup(&hdev->reject_list, addr, addr_type) ||
6228 /* Most controller will fail if we try to create new connections
6229 * while we have an existing one in peripheral role.
6231 if (hdev->conn_hash.le_num_peripheral > 0 &&
6232 (!test_bit(HCI_QUIRK_VALID_LE_STATES, &hdev->quirks) ||
6233 !(hdev->le_states[3] & 0x10)))
6236 /* If we're not connectable only connect devices that we have in
6237 * our pend_le_conns list.
6239 params = hci_pend_le_action_lookup(&hdev->pend_le_conns, addr,
6244 if (!params->explicit_connect) {
6245 switch (params->auto_connect) {
6246 case HCI_AUTO_CONN_DIRECT:
6247 /* Only devices advertising with ADV_DIRECT_IND are
6248 * triggering a connection attempt. This is allowing
6249 * incoming connections from peripheral devices.
6251 if (adv_type != LE_ADV_DIRECT_IND)
6254 case HCI_AUTO_CONN_ALWAYS:
6255 /* Devices advertising with ADV_IND or ADV_DIRECT_IND
6256 * are triggering a connection attempt. This means
6257 * that incoming connections from peripheral device are
6258 * accepted and also outgoing connections to peripheral
6259 * devices are established when found.
6267 conn = hci_connect_le(hdev, addr, addr_type, addr_resolved,
6268 BT_SECURITY_LOW, hdev->def_le_autoconnect_timeout,
6270 if (!IS_ERR(conn)) {
6271 /* If HCI_AUTO_CONN_EXPLICIT is set, conn is already owned
6272 * by higher layer that tried to connect, if no then
6273 * store the pointer since we don't really have any
6274 * other owner of the object besides the params that
6275 * triggered it. This way we can abort the connection if
6276 * the parameters get removed and keep the reference
6277 * count consistent once the connection is established.
6280 if (!params->explicit_connect)
6281 params->conn = hci_conn_get(conn);
6286 switch (PTR_ERR(conn)) {
6288 /* If hci_connect() returns -EBUSY it means there is already
6289 * an LE connection attempt going on. Since controllers don't
6290 * support more than one connection attempt at the time, we
6291 * don't consider this an error case.
6295 BT_DBG("Failed to connect: err %ld", PTR_ERR(conn));
6302 static void process_adv_report(struct hci_dev *hdev, u8 type, bdaddr_t *bdaddr,
6303 u8 bdaddr_type, bdaddr_t *direct_addr,
6304 u8 direct_addr_type, s8 rssi, u8 *data, u8 len,
6305 bool ext_adv, bool ctl_time, u64 instant)
6307 struct discovery_state *d = &hdev->discovery;
6308 struct smp_irk *irk;
6309 struct hci_conn *conn;
6310 bool match, bdaddr_resolved;
6316 case LE_ADV_DIRECT_IND:
6317 case LE_ADV_SCAN_IND:
6318 case LE_ADV_NONCONN_IND:
6319 case LE_ADV_SCAN_RSP:
6322 bt_dev_err_ratelimited(hdev, "unknown advertising packet "
6323 "type: 0x%02x", type);
6327 if (!ext_adv && len > HCI_MAX_AD_LENGTH) {
6328 bt_dev_err_ratelimited(hdev, "legacy adv larger than 31 bytes");
6332 /* Find the end of the data in case the report contains padded zero
6333 * bytes at the end causing an invalid length value.
6335 * When data is NULL, len is 0 so there is no need for extra ptr
6336 * check as 'ptr < data + 0' is already false in such case.
6338 for (ptr = data; ptr < data + len && *ptr; ptr += *ptr + 1) {
6339 if (ptr + 1 + *ptr > data + len)
6343 /* Adjust for actual length. This handles the case when remote
6344 * device is advertising with incorrect data length.
6348 /* If the direct address is present, then this report is from
6349 * a LE Direct Advertising Report event. In that case it is
6350 * important to see if the address is matching the local
6351 * controller address.
6353 if (!hci_dev_test_flag(hdev, HCI_MESH) && direct_addr) {
6354 direct_addr_type = ev_bdaddr_type(hdev, direct_addr_type,
6357 /* Only resolvable random addresses are valid for these
6358 * kind of reports and others can be ignored.
6360 if (!hci_bdaddr_is_rpa(direct_addr, direct_addr_type))
6363 /* If the controller is not using resolvable random
6364 * addresses, then this report can be ignored.
6366 if (!hci_dev_test_flag(hdev, HCI_PRIVACY))
6369 /* If the local IRK of the controller does not match
6370 * with the resolvable random address provided, then
6371 * this report can be ignored.
6373 if (!smp_irk_matches(hdev, hdev->irk, direct_addr))
6377 /* Check if we need to convert to identity address */
6378 irk = hci_get_irk(hdev, bdaddr, bdaddr_type);
6380 bdaddr = &irk->bdaddr;
6381 bdaddr_type = irk->addr_type;
6384 bdaddr_type = ev_bdaddr_type(hdev, bdaddr_type, &bdaddr_resolved);
6386 /* Check if we have been requested to connect to this device.
6388 * direct_addr is set only for directed advertising reports (it is NULL
6389 * for advertising reports) and is already verified to be RPA above.
6391 conn = check_pending_le_conn(hdev, bdaddr, bdaddr_type, bdaddr_resolved,
6393 if (!ext_adv && conn && type == LE_ADV_IND && len <= HCI_MAX_AD_LENGTH) {
6394 /* Store report for later inclusion by
6395 * mgmt_device_connected
6397 memcpy(conn->le_adv_data, data, len);
6398 conn->le_adv_data_len = len;
6401 if (type == LE_ADV_NONCONN_IND || type == LE_ADV_SCAN_IND)
6402 flags = MGMT_DEV_FOUND_NOT_CONNECTABLE;
6406 /* All scan results should be sent up for Mesh systems */
6407 if (hci_dev_test_flag(hdev, HCI_MESH)) {
6408 mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL,
6409 rssi, flags, data, len, NULL, 0, instant);
6413 /* Passive scanning shouldn't trigger any device found events,
6414 * except for devices marked as CONN_REPORT for which we do send
6415 * device found events, or advertisement monitoring requested.
6417 if (hdev->le_scan_type == LE_SCAN_PASSIVE) {
6418 if (type == LE_ADV_DIRECT_IND)
6421 if (!hci_pend_le_action_lookup(&hdev->pend_le_reports,
6422 bdaddr, bdaddr_type) &&
6423 idr_is_empty(&hdev->adv_monitors_idr))
6426 mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL,
6427 rssi, flags, data, len, NULL, 0, 0);
6431 /* When receiving a scan response, then there is no way to
6432 * know if the remote device is connectable or not. However
6433 * since scan responses are merged with a previously seen
6434 * advertising report, the flags field from that report
6437 * In the unlikely case that a controller just sends a scan
6438 * response event that doesn't match the pending report, then
6439 * it is marked as a standalone SCAN_RSP.
6441 if (type == LE_ADV_SCAN_RSP)
6442 flags = MGMT_DEV_FOUND_SCAN_RSP;
6444 /* If there's nothing pending either store the data from this
6445 * event or send an immediate device found event if the data
6446 * should not be stored for later.
6448 if (!ext_adv && !has_pending_adv_report(hdev)) {
6449 /* If the report will trigger a SCAN_REQ store it for
6452 if (type == LE_ADV_IND || type == LE_ADV_SCAN_IND) {
6453 store_pending_adv_report(hdev, bdaddr, bdaddr_type,
6454 rssi, flags, data, len);
6458 mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL,
6459 rssi, flags, data, len, NULL, 0, 0);
6463 /* Check if the pending report is for the same device as the new one */
6464 match = (!bacmp(bdaddr, &d->last_adv_addr) &&
6465 bdaddr_type == d->last_adv_addr_type);
6467 /* If the pending data doesn't match this report or this isn't a
6468 * scan response (e.g. we got a duplicate ADV_IND) then force
6469 * sending of the pending data.
6471 if (type != LE_ADV_SCAN_RSP || !match) {
6472 /* Send out whatever is in the cache, but skip duplicates */
6474 mgmt_device_found(hdev, &d->last_adv_addr, LE_LINK,
6475 d->last_adv_addr_type, NULL,
6476 d->last_adv_rssi, d->last_adv_flags,
6478 d->last_adv_data_len, NULL, 0, 0);
6480 /* If the new report will trigger a SCAN_REQ store it for
6483 if (!ext_adv && (type == LE_ADV_IND ||
6484 type == LE_ADV_SCAN_IND)) {
6485 store_pending_adv_report(hdev, bdaddr, bdaddr_type,
6486 rssi, flags, data, len);
6490 /* The advertising reports cannot be merged, so clear
6491 * the pending report and send out a device found event.
6493 clear_pending_adv_report(hdev);
6494 mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL,
6495 rssi, flags, data, len, NULL, 0, 0);
6499 /* If we get here we've got a pending ADV_IND or ADV_SCAN_IND and
6500 * the new event is a SCAN_RSP. We can therefore proceed with
6501 * sending a merged device found event.
6503 mgmt_device_found(hdev, &d->last_adv_addr, LE_LINK,
6504 d->last_adv_addr_type, NULL, rssi, d->last_adv_flags,
6505 d->last_adv_data, d->last_adv_data_len, data, len, 0);
6506 clear_pending_adv_report(hdev);
6509 static void hci_le_adv_report_evt(struct hci_dev *hdev, void *data,
6510 struct sk_buff *skb)
6512 struct hci_ev_le_advertising_report *ev = data;
6513 u64 instant = jiffies;
6521 struct hci_ev_le_advertising_info *info;
6524 info = hci_le_ev_skb_pull(hdev, skb,
6525 HCI_EV_LE_ADVERTISING_REPORT,
6530 if (!hci_le_ev_skb_pull(hdev, skb, HCI_EV_LE_ADVERTISING_REPORT,
6534 if (info->length <= HCI_MAX_AD_LENGTH) {
6535 rssi = info->data[info->length];
6536 process_adv_report(hdev, info->type, &info->bdaddr,
6537 info->bdaddr_type, NULL, 0, rssi,
6538 info->data, info->length, false,
6541 bt_dev_err(hdev, "Dropping invalid advertising data");
6545 hci_dev_unlock(hdev);
6548 static u8 ext_evt_type_to_legacy(struct hci_dev *hdev, u16 evt_type)
6550 if (evt_type & LE_EXT_ADV_LEGACY_PDU) {
6552 case LE_LEGACY_ADV_IND:
6554 case LE_LEGACY_ADV_DIRECT_IND:
6555 return LE_ADV_DIRECT_IND;
6556 case LE_LEGACY_ADV_SCAN_IND:
6557 return LE_ADV_SCAN_IND;
6558 case LE_LEGACY_NONCONN_IND:
6559 return LE_ADV_NONCONN_IND;
6560 case LE_LEGACY_SCAN_RSP_ADV:
6561 case LE_LEGACY_SCAN_RSP_ADV_SCAN:
6562 return LE_ADV_SCAN_RSP;
6568 if (evt_type & LE_EXT_ADV_CONN_IND) {
6569 if (evt_type & LE_EXT_ADV_DIRECT_IND)
6570 return LE_ADV_DIRECT_IND;
6575 if (evt_type & LE_EXT_ADV_SCAN_RSP)
6576 return LE_ADV_SCAN_RSP;
6578 if (evt_type & LE_EXT_ADV_SCAN_IND)
6579 return LE_ADV_SCAN_IND;
6581 if (evt_type == LE_EXT_ADV_NON_CONN_IND ||
6582 evt_type & LE_EXT_ADV_DIRECT_IND)
6583 return LE_ADV_NONCONN_IND;
6586 bt_dev_err_ratelimited(hdev, "Unknown advertising packet type: 0x%02x",
6589 return LE_ADV_INVALID;
6592 static void hci_le_ext_adv_report_evt(struct hci_dev *hdev, void *data,
6593 struct sk_buff *skb)
6595 struct hci_ev_le_ext_adv_report *ev = data;
6596 u64 instant = jiffies;
6604 struct hci_ev_le_ext_adv_info *info;
6608 info = hci_le_ev_skb_pull(hdev, skb, HCI_EV_LE_EXT_ADV_REPORT,
6613 if (!hci_le_ev_skb_pull(hdev, skb, HCI_EV_LE_EXT_ADV_REPORT,
6617 evt_type = __le16_to_cpu(info->type);
6618 legacy_evt_type = ext_evt_type_to_legacy(hdev, evt_type);
6619 if (legacy_evt_type != LE_ADV_INVALID) {
6620 process_adv_report(hdev, legacy_evt_type, &info->bdaddr,
6621 info->bdaddr_type, NULL, 0,
6622 info->rssi, info->data, info->length,
6623 !(evt_type & LE_EXT_ADV_LEGACY_PDU),
6628 hci_dev_unlock(hdev);
6631 static int hci_le_pa_term_sync(struct hci_dev *hdev, __le16 handle)
6633 struct hci_cp_le_pa_term_sync cp;
6635 memset(&cp, 0, sizeof(cp));
6638 return hci_send_cmd(hdev, HCI_OP_LE_PA_TERM_SYNC, sizeof(cp), &cp);
6641 static void hci_le_pa_sync_estabilished_evt(struct hci_dev *hdev, void *data,
6642 struct sk_buff *skb)
6644 struct hci_ev_le_pa_sync_established *ev = data;
6645 int mask = hdev->link_mode;
6648 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
6655 hci_dev_clear_flag(hdev, HCI_PA_SYNC);
6657 mask |= hci_proto_connect_ind(hdev, &ev->bdaddr, ISO_LINK, &flags);
6658 if (!(mask & HCI_LM_ACCEPT))
6659 hci_le_pa_term_sync(hdev, ev->handle);
6661 hci_dev_unlock(hdev);
6664 static void hci_le_remote_feat_complete_evt(struct hci_dev *hdev, void *data,
6665 struct sk_buff *skb)
6667 struct hci_ev_le_remote_feat_complete *ev = data;
6668 struct hci_conn *conn;
6670 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
6674 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
6677 memcpy(conn->features[0], ev->features, 8);
6679 if (conn->state == BT_CONFIG) {
6682 /* If the local controller supports peripheral-initiated
6683 * features exchange, but the remote controller does
6684 * not, then it is possible that the error code 0x1a
6685 * for unsupported remote feature gets returned.
6687 * In this specific case, allow the connection to
6688 * transition into connected state and mark it as
6691 if (!conn->out && ev->status == 0x1a &&
6692 (hdev->le_features[0] & HCI_LE_PERIPHERAL_FEATURES))
6695 status = ev->status;
6697 conn->state = BT_CONNECTED;
6698 hci_connect_cfm(conn, status);
6699 hci_conn_drop(conn);
6703 hci_dev_unlock(hdev);
6706 static void hci_le_ltk_request_evt(struct hci_dev *hdev, void *data,
6707 struct sk_buff *skb)
6709 struct hci_ev_le_ltk_req *ev = data;
6710 struct hci_cp_le_ltk_reply cp;
6711 struct hci_cp_le_ltk_neg_reply neg;
6712 struct hci_conn *conn;
6713 struct smp_ltk *ltk;
6715 bt_dev_dbg(hdev, "handle 0x%4.4x", __le16_to_cpu(ev->handle));
6719 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
6723 ltk = hci_find_ltk(hdev, &conn->dst, conn->dst_type, conn->role);
6727 if (smp_ltk_is_sc(ltk)) {
6728 /* With SC both EDiv and Rand are set to zero */
6729 if (ev->ediv || ev->rand)
6732 /* For non-SC keys check that EDiv and Rand match */
6733 if (ev->ediv != ltk->ediv || ev->rand != ltk->rand)
6737 memcpy(cp.ltk, ltk->val, ltk->enc_size);
6738 memset(cp.ltk + ltk->enc_size, 0, sizeof(cp.ltk) - ltk->enc_size);
6739 cp.handle = cpu_to_le16(conn->handle);
6741 conn->pending_sec_level = smp_ltk_sec_level(ltk);
6743 conn->enc_key_size = ltk->enc_size;
6745 hci_send_cmd(hdev, HCI_OP_LE_LTK_REPLY, sizeof(cp), &cp);
6747 /* Ref. Bluetooth Core SPEC pages 1975 and 2004. STK is a
6748 * temporary key used to encrypt a connection following
6749 * pairing. It is used during the Encrypted Session Setup to
6750 * distribute the keys. Later, security can be re-established
6751 * using a distributed LTK.
6753 if (ltk->type == SMP_STK) {
6754 set_bit(HCI_CONN_STK_ENCRYPT, &conn->flags);
6755 list_del_rcu(<k->list);
6756 kfree_rcu(ltk, rcu);
6758 clear_bit(HCI_CONN_STK_ENCRYPT, &conn->flags);
6761 hci_dev_unlock(hdev);
6766 neg.handle = ev->handle;
6767 hci_send_cmd(hdev, HCI_OP_LE_LTK_NEG_REPLY, sizeof(neg), &neg);
6768 hci_dev_unlock(hdev);
6771 static void send_conn_param_neg_reply(struct hci_dev *hdev, u16 handle,
6774 struct hci_cp_le_conn_param_req_neg_reply cp;
6776 cp.handle = cpu_to_le16(handle);
6779 hci_send_cmd(hdev, HCI_OP_LE_CONN_PARAM_REQ_NEG_REPLY, sizeof(cp),
6783 static void hci_le_remote_conn_param_req_evt(struct hci_dev *hdev, void *data,
6784 struct sk_buff *skb)
6786 struct hci_ev_le_remote_conn_param_req *ev = data;
6787 struct hci_cp_le_conn_param_req_reply cp;
6788 struct hci_conn *hcon;
6789 u16 handle, min, max, latency, timeout;
6791 bt_dev_dbg(hdev, "handle 0x%4.4x", __le16_to_cpu(ev->handle));
6793 handle = le16_to_cpu(ev->handle);
6794 min = le16_to_cpu(ev->interval_min);
6795 max = le16_to_cpu(ev->interval_max);
6796 latency = le16_to_cpu(ev->latency);
6797 timeout = le16_to_cpu(ev->timeout);
6799 hcon = hci_conn_hash_lookup_handle(hdev, handle);
6800 if (!hcon || hcon->state != BT_CONNECTED)
6801 return send_conn_param_neg_reply(hdev, handle,
6802 HCI_ERROR_UNKNOWN_CONN_ID);
6804 if (hci_check_conn_params(min, max, latency, timeout))
6805 return send_conn_param_neg_reply(hdev, handle,
6806 HCI_ERROR_INVALID_LL_PARAMS);
6808 if (hcon->role == HCI_ROLE_MASTER) {
6809 struct hci_conn_params *params;
6814 params = hci_conn_params_lookup(hdev, &hcon->dst,
6817 params->conn_min_interval = min;
6818 params->conn_max_interval = max;
6819 params->conn_latency = latency;
6820 params->supervision_timeout = timeout;
6826 hci_dev_unlock(hdev);
6828 mgmt_new_conn_param(hdev, &hcon->dst, hcon->dst_type,
6829 store_hint, min, max, latency, timeout);
6832 cp.handle = ev->handle;
6833 cp.interval_min = ev->interval_min;
6834 cp.interval_max = ev->interval_max;
6835 cp.latency = ev->latency;
6836 cp.timeout = ev->timeout;
6840 hci_send_cmd(hdev, HCI_OP_LE_CONN_PARAM_REQ_REPLY, sizeof(cp), &cp);
6843 static void hci_le_direct_adv_report_evt(struct hci_dev *hdev, void *data,
6844 struct sk_buff *skb)
6846 struct hci_ev_le_direct_adv_report *ev = data;
6847 u64 instant = jiffies;
6850 if (!hci_le_ev_skb_pull(hdev, skb, HCI_EV_LE_DIRECT_ADV_REPORT,
6851 flex_array_size(ev, info, ev->num)))
6859 for (i = 0; i < ev->num; i++) {
6860 struct hci_ev_le_direct_adv_info *info = &ev->info[i];
6862 process_adv_report(hdev, info->type, &info->bdaddr,
6863 info->bdaddr_type, &info->direct_addr,
6864 info->direct_addr_type, info->rssi, NULL, 0,
6865 false, false, instant);
6868 hci_dev_unlock(hdev);
6871 static void hci_le_phy_update_evt(struct hci_dev *hdev, void *data,
6872 struct sk_buff *skb)
6874 struct hci_ev_le_phy_update_complete *ev = data;
6875 struct hci_conn *conn;
6877 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
6884 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
6888 conn->le_tx_phy = ev->tx_phy;
6889 conn->le_rx_phy = ev->rx_phy;
6892 hci_dev_unlock(hdev);
6895 static void hci_le_cis_estabilished_evt(struct hci_dev *hdev, void *data,
6896 struct sk_buff *skb)
6898 struct hci_evt_le_cis_established *ev = data;
6899 struct hci_conn *conn;
6900 u16 handle = __le16_to_cpu(ev->handle);
6902 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
6906 conn = hci_conn_hash_lookup_handle(hdev, handle);
6909 "Unable to find connection with handle 0x%4.4x",
6914 if (conn->type != ISO_LINK) {
6916 "Invalid connection link type handle 0x%4.4x",
6921 if (conn->role == HCI_ROLE_SLAVE) {
6924 memset(&interval, 0, sizeof(interval));
6926 memcpy(&interval, ev->c_latency, sizeof(ev->c_latency));
6927 conn->iso_qos.in.interval = le32_to_cpu(interval);
6928 memcpy(&interval, ev->p_latency, sizeof(ev->p_latency));
6929 conn->iso_qos.out.interval = le32_to_cpu(interval);
6930 conn->iso_qos.in.latency = le16_to_cpu(ev->interval);
6931 conn->iso_qos.out.latency = le16_to_cpu(ev->interval);
6932 conn->iso_qos.in.sdu = le16_to_cpu(ev->c_mtu);
6933 conn->iso_qos.out.sdu = le16_to_cpu(ev->p_mtu);
6934 conn->iso_qos.in.phy = ev->c_phy;
6935 conn->iso_qos.out.phy = ev->p_phy;
6939 conn->state = BT_CONNECTED;
6940 hci_debugfs_create_conn(conn);
6941 hci_conn_add_sysfs(conn);
6942 hci_iso_setup_path(conn);
6946 hci_connect_cfm(conn, ev->status);
6950 hci_dev_unlock(hdev);
6953 static void hci_le_reject_cis(struct hci_dev *hdev, __le16 handle)
6955 struct hci_cp_le_reject_cis cp;
6957 memset(&cp, 0, sizeof(cp));
6959 cp.reason = HCI_ERROR_REJ_BAD_ADDR;
6960 hci_send_cmd(hdev, HCI_OP_LE_REJECT_CIS, sizeof(cp), &cp);
6963 static void hci_le_accept_cis(struct hci_dev *hdev, __le16 handle)
6965 struct hci_cp_le_accept_cis cp;
6967 memset(&cp, 0, sizeof(cp));
6969 hci_send_cmd(hdev, HCI_OP_LE_ACCEPT_CIS, sizeof(cp), &cp);
6972 static void hci_le_cis_req_evt(struct hci_dev *hdev, void *data,
6973 struct sk_buff *skb)
6975 struct hci_evt_le_cis_req *ev = data;
6976 u16 acl_handle, cis_handle;
6977 struct hci_conn *acl, *cis;
6981 acl_handle = __le16_to_cpu(ev->acl_handle);
6982 cis_handle = __le16_to_cpu(ev->cis_handle);
6984 bt_dev_dbg(hdev, "acl 0x%4.4x handle 0x%4.4x cig 0x%2.2x cis 0x%2.2x",
6985 acl_handle, cis_handle, ev->cig_id, ev->cis_id);
6989 acl = hci_conn_hash_lookup_handle(hdev, acl_handle);
6993 mask = hci_proto_connect_ind(hdev, &acl->dst, ISO_LINK, &flags);
6994 if (!(mask & HCI_LM_ACCEPT)) {
6995 hci_le_reject_cis(hdev, ev->cis_handle);
6999 cis = hci_conn_hash_lookup_handle(hdev, cis_handle);
7001 cis = hci_conn_add(hdev, ISO_LINK, &acl->dst, HCI_ROLE_SLAVE);
7003 hci_le_reject_cis(hdev, ev->cis_handle);
7006 cis->handle = cis_handle;
7009 cis->iso_qos.cig = ev->cig_id;
7010 cis->iso_qos.cis = ev->cis_id;
7012 if (!(flags & HCI_PROTO_DEFER)) {
7013 hci_le_accept_cis(hdev, ev->cis_handle);
7015 cis->state = BT_CONNECT2;
7016 hci_connect_cfm(cis, 0);
7020 hci_dev_unlock(hdev);
7023 static void hci_le_create_big_complete_evt(struct hci_dev *hdev, void *data,
7024 struct sk_buff *skb)
7026 struct hci_evt_le_create_big_complete *ev = data;
7027 struct hci_conn *conn;
7029 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
7031 if (!hci_le_ev_skb_pull(hdev, skb, HCI_EVT_LE_CREATE_BIG_COMPLETE,
7032 flex_array_size(ev, bis_handle, ev->num_bis)))
7037 conn = hci_conn_hash_lookup_big(hdev, ev->handle);
7041 if (conn->type != ISO_LINK) {
7043 "Invalid connection link type handle 0x%2.2x",
7049 conn->handle = __le16_to_cpu(ev->bis_handle[0]);
7052 conn->state = BT_CONNECTED;
7053 hci_debugfs_create_conn(conn);
7054 hci_conn_add_sysfs(conn);
7055 hci_iso_setup_path(conn);
7059 hci_connect_cfm(conn, ev->status);
7063 hci_dev_unlock(hdev);
7066 static void hci_le_big_sync_established_evt(struct hci_dev *hdev, void *data,
7067 struct sk_buff *skb)
7069 struct hci_evt_le_big_sync_estabilished *ev = data;
7070 struct hci_conn *bis;
7073 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
7075 if (!hci_le_ev_skb_pull(hdev, skb, HCI_EVT_LE_BIG_SYNC_ESTABILISHED,
7076 flex_array_size(ev, bis, ev->num_bis)))
7084 for (i = 0; i < ev->num_bis; i++) {
7085 u16 handle = le16_to_cpu(ev->bis[i]);
7088 bis = hci_conn_hash_lookup_handle(hdev, handle);
7090 bis = hci_conn_add(hdev, ISO_LINK, BDADDR_ANY,
7094 bis->handle = handle;
7097 bis->iso_qos.big = ev->handle;
7098 memset(&interval, 0, sizeof(interval));
7099 memcpy(&interval, ev->latency, sizeof(ev->latency));
7100 bis->iso_qos.in.interval = le32_to_cpu(interval);
7101 /* Convert ISO Interval (1.25 ms slots) to latency (ms) */
7102 bis->iso_qos.in.latency = le16_to_cpu(ev->interval) * 125 / 100;
7103 bis->iso_qos.in.sdu = le16_to_cpu(ev->max_pdu);
7105 hci_iso_setup_path(bis);
7108 hci_dev_unlock(hdev);
7111 static void hci_le_big_info_adv_report_evt(struct hci_dev *hdev, void *data,
7112 struct sk_buff *skb)
7114 struct hci_evt_le_big_info_adv_report *ev = data;
7115 int mask = hdev->link_mode;
7118 bt_dev_dbg(hdev, "sync_handle 0x%4.4x", le16_to_cpu(ev->sync_handle));
7122 mask |= hci_proto_connect_ind(hdev, BDADDR_ANY, ISO_LINK, &flags);
7123 if (!(mask & HCI_LM_ACCEPT))
7124 hci_le_pa_term_sync(hdev, ev->sync_handle);
7126 hci_dev_unlock(hdev);
7129 #define HCI_LE_EV_VL(_op, _func, _min_len, _max_len) \
7132 .min_len = _min_len, \
7133 .max_len = _max_len, \
7136 #define HCI_LE_EV(_op, _func, _len) \
7137 HCI_LE_EV_VL(_op, _func, _len, _len)
7139 #define HCI_LE_EV_STATUS(_op, _func) \
7140 HCI_LE_EV(_op, _func, sizeof(struct hci_ev_status))
7142 /* Entries in this table shall have their position according to the subevent
7143 * opcode they handle so the use of the macros above is recommend since it does
7144 * attempt to initialize at its proper index using Designated Initializers that
7145 * way events without a callback function can be ommited.
7147 static const struct hci_le_ev {
7148 void (*func)(struct hci_dev *hdev, void *data, struct sk_buff *skb);
7151 } hci_le_ev_table[U8_MAX + 1] = {
7152 /* [0x01 = HCI_EV_LE_CONN_COMPLETE] */
7153 HCI_LE_EV(HCI_EV_LE_CONN_COMPLETE, hci_le_conn_complete_evt,
7154 sizeof(struct hci_ev_le_conn_complete)),
7155 /* [0x02 = HCI_EV_LE_ADVERTISING_REPORT] */
7156 HCI_LE_EV_VL(HCI_EV_LE_ADVERTISING_REPORT, hci_le_adv_report_evt,
7157 sizeof(struct hci_ev_le_advertising_report),
7158 HCI_MAX_EVENT_SIZE),
7159 /* [0x03 = HCI_EV_LE_CONN_UPDATE_COMPLETE] */
7160 HCI_LE_EV(HCI_EV_LE_CONN_UPDATE_COMPLETE,
7161 hci_le_conn_update_complete_evt,
7162 sizeof(struct hci_ev_le_conn_update_complete)),
7163 /* [0x04 = HCI_EV_LE_REMOTE_FEAT_COMPLETE] */
7164 HCI_LE_EV(HCI_EV_LE_REMOTE_FEAT_COMPLETE,
7165 hci_le_remote_feat_complete_evt,
7166 sizeof(struct hci_ev_le_remote_feat_complete)),
7167 /* [0x05 = HCI_EV_LE_LTK_REQ] */
7168 HCI_LE_EV(HCI_EV_LE_LTK_REQ, hci_le_ltk_request_evt,
7169 sizeof(struct hci_ev_le_ltk_req)),
7170 /* [0x06 = HCI_EV_LE_REMOTE_CONN_PARAM_REQ] */
7171 HCI_LE_EV(HCI_EV_LE_REMOTE_CONN_PARAM_REQ,
7172 hci_le_remote_conn_param_req_evt,
7173 sizeof(struct hci_ev_le_remote_conn_param_req)),
7174 /* [0x0a = HCI_EV_LE_ENHANCED_CONN_COMPLETE] */
7175 HCI_LE_EV(HCI_EV_LE_ENHANCED_CONN_COMPLETE,
7176 hci_le_enh_conn_complete_evt,
7177 sizeof(struct hci_ev_le_enh_conn_complete)),
7178 /* [0x0b = HCI_EV_LE_DIRECT_ADV_REPORT] */
7179 HCI_LE_EV_VL(HCI_EV_LE_DIRECT_ADV_REPORT, hci_le_direct_adv_report_evt,
7180 sizeof(struct hci_ev_le_direct_adv_report),
7181 HCI_MAX_EVENT_SIZE),
7182 /* [0x0c = HCI_EV_LE_PHY_UPDATE_COMPLETE] */
7183 HCI_LE_EV(HCI_EV_LE_PHY_UPDATE_COMPLETE, hci_le_phy_update_evt,
7184 sizeof(struct hci_ev_le_phy_update_complete)),
7185 /* [0x0d = HCI_EV_LE_EXT_ADV_REPORT] */
7186 HCI_LE_EV_VL(HCI_EV_LE_EXT_ADV_REPORT, hci_le_ext_adv_report_evt,
7187 sizeof(struct hci_ev_le_ext_adv_report),
7188 HCI_MAX_EVENT_SIZE),
7189 /* [0x0e = HCI_EV_LE_PA_SYNC_ESTABLISHED] */
7190 HCI_LE_EV(HCI_EV_LE_PA_SYNC_ESTABLISHED,
7191 hci_le_pa_sync_estabilished_evt,
7192 sizeof(struct hci_ev_le_pa_sync_established)),
7193 /* [0x12 = HCI_EV_LE_EXT_ADV_SET_TERM] */
7194 HCI_LE_EV(HCI_EV_LE_EXT_ADV_SET_TERM, hci_le_ext_adv_term_evt,
7195 sizeof(struct hci_evt_le_ext_adv_set_term)),
7196 /* [0x19 = HCI_EVT_LE_CIS_ESTABLISHED] */
7197 HCI_LE_EV(HCI_EVT_LE_CIS_ESTABLISHED, hci_le_cis_estabilished_evt,
7198 sizeof(struct hci_evt_le_cis_established)),
7199 /* [0x1a = HCI_EVT_LE_CIS_REQ] */
7200 HCI_LE_EV(HCI_EVT_LE_CIS_REQ, hci_le_cis_req_evt,
7201 sizeof(struct hci_evt_le_cis_req)),
7202 /* [0x1b = HCI_EVT_LE_CREATE_BIG_COMPLETE] */
7203 HCI_LE_EV_VL(HCI_EVT_LE_CREATE_BIG_COMPLETE,
7204 hci_le_create_big_complete_evt,
7205 sizeof(struct hci_evt_le_create_big_complete),
7206 HCI_MAX_EVENT_SIZE),
7207 /* [0x1d = HCI_EV_LE_BIG_SYNC_ESTABILISHED] */
7208 HCI_LE_EV_VL(HCI_EVT_LE_BIG_SYNC_ESTABILISHED,
7209 hci_le_big_sync_established_evt,
7210 sizeof(struct hci_evt_le_big_sync_estabilished),
7211 HCI_MAX_EVENT_SIZE),
7212 /* [0x22 = HCI_EVT_LE_BIG_INFO_ADV_REPORT] */
7213 HCI_LE_EV_VL(HCI_EVT_LE_BIG_INFO_ADV_REPORT,
7214 hci_le_big_info_adv_report_evt,
7215 sizeof(struct hci_evt_le_big_info_adv_report),
7216 HCI_MAX_EVENT_SIZE),
7219 static void hci_le_meta_evt(struct hci_dev *hdev, void *data,
7220 struct sk_buff *skb, u16 *opcode, u8 *status,
7221 hci_req_complete_t *req_complete,
7222 hci_req_complete_skb_t *req_complete_skb)
7224 struct hci_ev_le_meta *ev = data;
7225 const struct hci_le_ev *subev;
7227 bt_dev_dbg(hdev, "subevent 0x%2.2x", ev->subevent);
7229 /* Only match event if command OGF is for LE */
7230 if (hdev->sent_cmd &&
7231 hci_opcode_ogf(hci_skb_opcode(hdev->sent_cmd)) == 0x08 &&
7232 hci_skb_event(hdev->sent_cmd) == ev->subevent) {
7233 *opcode = hci_skb_opcode(hdev->sent_cmd);
7234 hci_req_cmd_complete(hdev, *opcode, 0x00, req_complete,
7238 subev = &hci_le_ev_table[ev->subevent];
7242 if (skb->len < subev->min_len) {
7243 bt_dev_err(hdev, "unexpected subevent 0x%2.2x length: %u < %u",
7244 ev->subevent, skb->len, subev->min_len);
7248 /* Just warn if the length is over max_len size it still be
7249 * possible to partially parse the event so leave to callback to
7250 * decide if that is acceptable.
7252 if (skb->len > subev->max_len)
7253 bt_dev_warn(hdev, "unexpected subevent 0x%2.2x length: %u > %u",
7254 ev->subevent, skb->len, subev->max_len);
7255 data = hci_le_ev_skb_pull(hdev, skb, ev->subevent, subev->min_len);
7259 subev->func(hdev, data, skb);
7262 static bool hci_get_cmd_complete(struct hci_dev *hdev, u16 opcode,
7263 u8 event, struct sk_buff *skb)
7265 struct hci_ev_cmd_complete *ev;
7266 struct hci_event_hdr *hdr;
7271 hdr = hci_ev_skb_pull(hdev, skb, event, sizeof(*hdr));
7276 if (hdr->evt != event)
7281 /* Check if request ended in Command Status - no way to retrieve
7282 * any extra parameters in this case.
7284 if (hdr->evt == HCI_EV_CMD_STATUS)
7287 if (hdr->evt != HCI_EV_CMD_COMPLETE) {
7288 bt_dev_err(hdev, "last event is not cmd complete (0x%2.2x)",
7293 ev = hci_cc_skb_pull(hdev, skb, opcode, sizeof(*ev));
7297 if (opcode != __le16_to_cpu(ev->opcode)) {
7298 BT_DBG("opcode doesn't match (0x%2.2x != 0x%2.2x)", opcode,
7299 __le16_to_cpu(ev->opcode));
7306 static void hci_store_wake_reason(struct hci_dev *hdev, u8 event,
7307 struct sk_buff *skb)
7309 struct hci_ev_le_advertising_info *adv;
7310 struct hci_ev_le_direct_adv_info *direct_adv;
7311 struct hci_ev_le_ext_adv_info *ext_adv;
7312 const struct hci_ev_conn_complete *conn_complete = (void *)skb->data;
7313 const struct hci_ev_conn_request *conn_request = (void *)skb->data;
7317 /* If we are currently suspended and this is the first BT event seen,
7318 * save the wake reason associated with the event.
7320 if (!hdev->suspended || hdev->wake_reason)
7323 /* Default to remote wake. Values for wake_reason are documented in the
7324 * Bluez mgmt api docs.
7326 hdev->wake_reason = MGMT_WAKE_REASON_REMOTE_WAKE;
7328 /* Once configured for remote wakeup, we should only wake up for
7329 * reconnections. It's useful to see which device is waking us up so
7330 * keep track of the bdaddr of the connection event that woke us up.
7332 if (event == HCI_EV_CONN_REQUEST) {
7333 bacpy(&hdev->wake_addr, &conn_complete->bdaddr);
7334 hdev->wake_addr_type = BDADDR_BREDR;
7335 } else if (event == HCI_EV_CONN_COMPLETE) {
7336 bacpy(&hdev->wake_addr, &conn_request->bdaddr);
7337 hdev->wake_addr_type = BDADDR_BREDR;
7338 } else if (event == HCI_EV_LE_META) {
7339 struct hci_ev_le_meta *le_ev = (void *)skb->data;
7340 u8 subevent = le_ev->subevent;
7341 u8 *ptr = &skb->data[sizeof(*le_ev)];
7342 u8 num_reports = *ptr;
7344 if ((subevent == HCI_EV_LE_ADVERTISING_REPORT ||
7345 subevent == HCI_EV_LE_DIRECT_ADV_REPORT ||
7346 subevent == HCI_EV_LE_EXT_ADV_REPORT) &&
7348 adv = (void *)(ptr + 1);
7349 direct_adv = (void *)(ptr + 1);
7350 ext_adv = (void *)(ptr + 1);
7353 case HCI_EV_LE_ADVERTISING_REPORT:
7354 bacpy(&hdev->wake_addr, &adv->bdaddr);
7355 hdev->wake_addr_type = adv->bdaddr_type;
7357 case HCI_EV_LE_DIRECT_ADV_REPORT:
7358 bacpy(&hdev->wake_addr, &direct_adv->bdaddr);
7359 hdev->wake_addr_type = direct_adv->bdaddr_type;
7361 case HCI_EV_LE_EXT_ADV_REPORT:
7362 bacpy(&hdev->wake_addr, &ext_adv->bdaddr);
7363 hdev->wake_addr_type = ext_adv->bdaddr_type;
7368 hdev->wake_reason = MGMT_WAKE_REASON_UNEXPECTED;
7372 hci_dev_unlock(hdev);
7375 #define HCI_EV_VL(_op, _func, _min_len, _max_len) \
7379 .min_len = _min_len, \
7380 .max_len = _max_len, \
7383 #define HCI_EV(_op, _func, _len) \
7384 HCI_EV_VL(_op, _func, _len, _len)
7386 #define HCI_EV_STATUS(_op, _func) \
7387 HCI_EV(_op, _func, sizeof(struct hci_ev_status))
7389 #define HCI_EV_REQ_VL(_op, _func, _min_len, _max_len) \
7392 .func_req = _func, \
7393 .min_len = _min_len, \
7394 .max_len = _max_len, \
7397 #define HCI_EV_REQ(_op, _func, _len) \
7398 HCI_EV_REQ_VL(_op, _func, _len, _len)
7400 /* Entries in this table shall have their position according to the event opcode
7401 * they handle so the use of the macros above is recommend since it does attempt
7402 * to initialize at its proper index using Designated Initializers that way
7403 * events without a callback function don't have entered.
7405 static const struct hci_ev {
7408 void (*func)(struct hci_dev *hdev, void *data,
7409 struct sk_buff *skb);
7410 void (*func_req)(struct hci_dev *hdev, void *data,
7411 struct sk_buff *skb, u16 *opcode, u8 *status,
7412 hci_req_complete_t *req_complete,
7413 hci_req_complete_skb_t *req_complete_skb);
7417 } hci_ev_table[U8_MAX + 1] = {
7418 /* [0x01 = HCI_EV_INQUIRY_COMPLETE] */
7419 HCI_EV_STATUS(HCI_EV_INQUIRY_COMPLETE, hci_inquiry_complete_evt),
7420 /* [0x02 = HCI_EV_INQUIRY_RESULT] */
7421 HCI_EV_VL(HCI_EV_INQUIRY_RESULT, hci_inquiry_result_evt,
7422 sizeof(struct hci_ev_inquiry_result), HCI_MAX_EVENT_SIZE),
7423 /* [0x03 = HCI_EV_CONN_COMPLETE] */
7424 HCI_EV(HCI_EV_CONN_COMPLETE, hci_conn_complete_evt,
7425 sizeof(struct hci_ev_conn_complete)),
7426 /* [0x04 = HCI_EV_CONN_REQUEST] */
7427 HCI_EV(HCI_EV_CONN_REQUEST, hci_conn_request_evt,
7428 sizeof(struct hci_ev_conn_request)),
7429 /* [0x05 = HCI_EV_DISCONN_COMPLETE] */
7430 HCI_EV(HCI_EV_DISCONN_COMPLETE, hci_disconn_complete_evt,
7431 sizeof(struct hci_ev_disconn_complete)),
7432 /* [0x06 = HCI_EV_AUTH_COMPLETE] */
7433 HCI_EV(HCI_EV_AUTH_COMPLETE, hci_auth_complete_evt,
7434 sizeof(struct hci_ev_auth_complete)),
7435 /* [0x07 = HCI_EV_REMOTE_NAME] */
7436 HCI_EV(HCI_EV_REMOTE_NAME, hci_remote_name_evt,
7437 sizeof(struct hci_ev_remote_name)),
7438 /* [0x08 = HCI_EV_ENCRYPT_CHANGE] */
7439 HCI_EV(HCI_EV_ENCRYPT_CHANGE, hci_encrypt_change_evt,
7440 sizeof(struct hci_ev_encrypt_change)),
7441 /* [0x09 = HCI_EV_CHANGE_LINK_KEY_COMPLETE] */
7442 HCI_EV(HCI_EV_CHANGE_LINK_KEY_COMPLETE,
7443 hci_change_link_key_complete_evt,
7444 sizeof(struct hci_ev_change_link_key_complete)),
7445 /* [0x0b = HCI_EV_REMOTE_FEATURES] */
7446 HCI_EV(HCI_EV_REMOTE_FEATURES, hci_remote_features_evt,
7447 sizeof(struct hci_ev_remote_features)),
7448 /* [0x0e = HCI_EV_CMD_COMPLETE] */
7449 HCI_EV_REQ_VL(HCI_EV_CMD_COMPLETE, hci_cmd_complete_evt,
7450 sizeof(struct hci_ev_cmd_complete), HCI_MAX_EVENT_SIZE),
7451 /* [0x0f = HCI_EV_CMD_STATUS] */
7452 HCI_EV_REQ(HCI_EV_CMD_STATUS, hci_cmd_status_evt,
7453 sizeof(struct hci_ev_cmd_status)),
7454 /* [0x10 = HCI_EV_CMD_STATUS] */
7455 HCI_EV(HCI_EV_HARDWARE_ERROR, hci_hardware_error_evt,
7456 sizeof(struct hci_ev_hardware_error)),
7457 /* [0x12 = HCI_EV_ROLE_CHANGE] */
7458 HCI_EV(HCI_EV_ROLE_CHANGE, hci_role_change_evt,
7459 sizeof(struct hci_ev_role_change)),
7460 /* [0x13 = HCI_EV_NUM_COMP_PKTS] */
7461 HCI_EV_VL(HCI_EV_NUM_COMP_PKTS, hci_num_comp_pkts_evt,
7462 sizeof(struct hci_ev_num_comp_pkts), HCI_MAX_EVENT_SIZE),
7463 /* [0x14 = HCI_EV_MODE_CHANGE] */
7464 HCI_EV(HCI_EV_MODE_CHANGE, hci_mode_change_evt,
7465 sizeof(struct hci_ev_mode_change)),
7466 /* [0x16 = HCI_EV_PIN_CODE_REQ] */
7467 HCI_EV(HCI_EV_PIN_CODE_REQ, hci_pin_code_request_evt,
7468 sizeof(struct hci_ev_pin_code_req)),
7469 /* [0x17 = HCI_EV_LINK_KEY_REQ] */
7470 HCI_EV(HCI_EV_LINK_KEY_REQ, hci_link_key_request_evt,
7471 sizeof(struct hci_ev_link_key_req)),
7472 /* [0x18 = HCI_EV_LINK_KEY_NOTIFY] */
7473 HCI_EV(HCI_EV_LINK_KEY_NOTIFY, hci_link_key_notify_evt,
7474 sizeof(struct hci_ev_link_key_notify)),
7475 /* [0x1c = HCI_EV_CLOCK_OFFSET] */
7476 HCI_EV(HCI_EV_CLOCK_OFFSET, hci_clock_offset_evt,
7477 sizeof(struct hci_ev_clock_offset)),
7478 /* [0x1d = HCI_EV_PKT_TYPE_CHANGE] */
7479 HCI_EV(HCI_EV_PKT_TYPE_CHANGE, hci_pkt_type_change_evt,
7480 sizeof(struct hci_ev_pkt_type_change)),
7481 /* [0x20 = HCI_EV_PSCAN_REP_MODE] */
7482 HCI_EV(HCI_EV_PSCAN_REP_MODE, hci_pscan_rep_mode_evt,
7483 sizeof(struct hci_ev_pscan_rep_mode)),
7484 /* [0x22 = HCI_EV_INQUIRY_RESULT_WITH_RSSI] */
7485 HCI_EV_VL(HCI_EV_INQUIRY_RESULT_WITH_RSSI,
7486 hci_inquiry_result_with_rssi_evt,
7487 sizeof(struct hci_ev_inquiry_result_rssi),
7488 HCI_MAX_EVENT_SIZE),
7489 /* [0x23 = HCI_EV_REMOTE_EXT_FEATURES] */
7490 HCI_EV(HCI_EV_REMOTE_EXT_FEATURES, hci_remote_ext_features_evt,
7491 sizeof(struct hci_ev_remote_ext_features)),
7492 /* [0x2c = HCI_EV_SYNC_CONN_COMPLETE] */
7493 HCI_EV(HCI_EV_SYNC_CONN_COMPLETE, hci_sync_conn_complete_evt,
7494 sizeof(struct hci_ev_sync_conn_complete)),
7495 /* [0x2d = HCI_EV_EXTENDED_INQUIRY_RESULT] */
7496 HCI_EV_VL(HCI_EV_EXTENDED_INQUIRY_RESULT,
7497 hci_extended_inquiry_result_evt,
7498 sizeof(struct hci_ev_ext_inquiry_result), HCI_MAX_EVENT_SIZE),
7499 /* [0x30 = HCI_EV_KEY_REFRESH_COMPLETE] */
7500 HCI_EV(HCI_EV_KEY_REFRESH_COMPLETE, hci_key_refresh_complete_evt,
7501 sizeof(struct hci_ev_key_refresh_complete)),
7502 /* [0x31 = HCI_EV_IO_CAPA_REQUEST] */
7503 HCI_EV(HCI_EV_IO_CAPA_REQUEST, hci_io_capa_request_evt,
7504 sizeof(struct hci_ev_io_capa_request)),
7505 /* [0x32 = HCI_EV_IO_CAPA_REPLY] */
7506 HCI_EV(HCI_EV_IO_CAPA_REPLY, hci_io_capa_reply_evt,
7507 sizeof(struct hci_ev_io_capa_reply)),
7508 /* [0x33 = HCI_EV_USER_CONFIRM_REQUEST] */
7509 HCI_EV(HCI_EV_USER_CONFIRM_REQUEST, hci_user_confirm_request_evt,
7510 sizeof(struct hci_ev_user_confirm_req)),
7511 /* [0x34 = HCI_EV_USER_PASSKEY_REQUEST] */
7512 HCI_EV(HCI_EV_USER_PASSKEY_REQUEST, hci_user_passkey_request_evt,
7513 sizeof(struct hci_ev_user_passkey_req)),
7514 /* [0x35 = HCI_EV_REMOTE_OOB_DATA_REQUEST] */
7515 HCI_EV(HCI_EV_REMOTE_OOB_DATA_REQUEST, hci_remote_oob_data_request_evt,
7516 sizeof(struct hci_ev_remote_oob_data_request)),
7517 /* [0x36 = HCI_EV_SIMPLE_PAIR_COMPLETE] */
7518 HCI_EV(HCI_EV_SIMPLE_PAIR_COMPLETE, hci_simple_pair_complete_evt,
7519 sizeof(struct hci_ev_simple_pair_complete)),
7520 /* [0x3b = HCI_EV_USER_PASSKEY_NOTIFY] */
7521 HCI_EV(HCI_EV_USER_PASSKEY_NOTIFY, hci_user_passkey_notify_evt,
7522 sizeof(struct hci_ev_user_passkey_notify)),
7523 /* [0x3c = HCI_EV_KEYPRESS_NOTIFY] */
7524 HCI_EV(HCI_EV_KEYPRESS_NOTIFY, hci_keypress_notify_evt,
7525 sizeof(struct hci_ev_keypress_notify)),
7526 /* [0x3d = HCI_EV_REMOTE_HOST_FEATURES] */
7527 HCI_EV(HCI_EV_REMOTE_HOST_FEATURES, hci_remote_host_features_evt,
7528 sizeof(struct hci_ev_remote_host_features)),
7529 /* [0x3e = HCI_EV_LE_META] */
7530 HCI_EV_REQ_VL(HCI_EV_LE_META, hci_le_meta_evt,
7531 sizeof(struct hci_ev_le_meta), HCI_MAX_EVENT_SIZE),
7532 #if IS_ENABLED(CONFIG_BT_HS)
7533 /* [0x40 = HCI_EV_PHY_LINK_COMPLETE] */
7534 HCI_EV(HCI_EV_PHY_LINK_COMPLETE, hci_phy_link_complete_evt,
7535 sizeof(struct hci_ev_phy_link_complete)),
7536 /* [0x41 = HCI_EV_CHANNEL_SELECTED] */
7537 HCI_EV(HCI_EV_CHANNEL_SELECTED, hci_chan_selected_evt,
7538 sizeof(struct hci_ev_channel_selected)),
7539 /* [0x42 = HCI_EV_DISCONN_PHY_LINK_COMPLETE] */
7540 HCI_EV(HCI_EV_DISCONN_LOGICAL_LINK_COMPLETE,
7541 hci_disconn_loglink_complete_evt,
7542 sizeof(struct hci_ev_disconn_logical_link_complete)),
7543 /* [0x45 = HCI_EV_LOGICAL_LINK_COMPLETE] */
7544 HCI_EV(HCI_EV_LOGICAL_LINK_COMPLETE, hci_loglink_complete_evt,
7545 sizeof(struct hci_ev_logical_link_complete)),
7546 /* [0x46 = HCI_EV_DISCONN_LOGICAL_LINK_COMPLETE] */
7547 HCI_EV(HCI_EV_DISCONN_PHY_LINK_COMPLETE,
7548 hci_disconn_phylink_complete_evt,
7549 sizeof(struct hci_ev_disconn_phy_link_complete)),
7551 /* [0x48 = HCI_EV_NUM_COMP_BLOCKS] */
7552 HCI_EV(HCI_EV_NUM_COMP_BLOCKS, hci_num_comp_blocks_evt,
7553 sizeof(struct hci_ev_num_comp_blocks)),
7555 /* [0xFF = HCI_EV_VENDOR_SPECIFIC] */
7556 HCI_EV(HCI_EV_VENDOR_SPECIFIC, hci_vendor_specific_evt,
7557 sizeof(struct hci_ev_vendor_specific)),
7559 /* [0xff = HCI_EV_VENDOR] */
7560 HCI_EV_VL(HCI_EV_VENDOR, msft_vendor_evt, 0, HCI_MAX_EVENT_SIZE),
7564 static void hci_event_func(struct hci_dev *hdev, u8 event, struct sk_buff *skb,
7565 u16 *opcode, u8 *status,
7566 hci_req_complete_t *req_complete,
7567 hci_req_complete_skb_t *req_complete_skb)
7569 const struct hci_ev *ev = &hci_ev_table[event];
7575 if (skb->len < ev->min_len) {
7576 bt_dev_err(hdev, "unexpected event 0x%2.2x length: %u < %u",
7577 event, skb->len, ev->min_len);
7581 /* Just warn if the length is over max_len size it still be
7582 * possible to partially parse the event so leave to callback to
7583 * decide if that is acceptable.
7585 if (skb->len > ev->max_len)
7586 bt_dev_warn_ratelimited(hdev,
7587 "unexpected event 0x%2.2x length: %u > %u",
7588 event, skb->len, ev->max_len);
7590 data = hci_ev_skb_pull(hdev, skb, event, ev->min_len);
7595 ev->func_req(hdev, data, skb, opcode, status, req_complete,
7598 ev->func(hdev, data, skb);
7601 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb)
7603 struct hci_event_hdr *hdr = (void *) skb->data;
7604 hci_req_complete_t req_complete = NULL;
7605 hci_req_complete_skb_t req_complete_skb = NULL;
7606 struct sk_buff *orig_skb = NULL;
7607 u8 status = 0, event, req_evt = 0;
7608 u16 opcode = HCI_OP_NOP;
7610 if (skb->len < sizeof(*hdr)) {
7611 bt_dev_err(hdev, "Malformed HCI Event");
7615 kfree_skb(hdev->recv_event);
7616 hdev->recv_event = skb_clone(skb, GFP_KERNEL);
7620 bt_dev_warn(hdev, "Received unexpected HCI Event 0x%2.2x",
7625 /* Only match event if command OGF is not for LE */
7626 if (hdev->sent_cmd &&
7627 hci_opcode_ogf(hci_skb_opcode(hdev->sent_cmd)) != 0x08 &&
7628 hci_skb_event(hdev->sent_cmd) == event) {
7629 hci_req_cmd_complete(hdev, hci_skb_opcode(hdev->sent_cmd),
7630 status, &req_complete, &req_complete_skb);
7634 /* If it looks like we might end up having to call
7635 * req_complete_skb, store a pristine copy of the skb since the
7636 * various handlers may modify the original one through
7637 * skb_pull() calls, etc.
7639 if (req_complete_skb || event == HCI_EV_CMD_STATUS ||
7640 event == HCI_EV_CMD_COMPLETE)
7641 orig_skb = skb_clone(skb, GFP_KERNEL);
7643 skb_pull(skb, HCI_EVENT_HDR_SIZE);
7645 /* Store wake reason if we're suspended */
7646 hci_store_wake_reason(hdev, event, skb);
7648 bt_dev_dbg(hdev, "event 0x%2.2x", event);
7650 hci_event_func(hdev, event, skb, &opcode, &status, &req_complete,
7654 req_complete(hdev, status, opcode);
7655 } else if (req_complete_skb) {
7656 if (!hci_get_cmd_complete(hdev, opcode, req_evt, orig_skb)) {
7657 kfree_skb(orig_skb);
7660 req_complete_skb(hdev, status, opcode, orig_skb);
7664 kfree_skb(orig_skb);
7666 hdev->stat.evt_rx++;