2 BlueZ - Bluetooth protocol stack for Linux
3 Copyright (c) 2000-2001, 2010, Code Aurora Forum. All rights reserved.
6 Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License version 2 as
10 published by the Free Software Foundation;
12 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
13 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
14 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
15 IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
16 CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
17 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
18 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
19 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
21 ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
22 COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
23 SOFTWARE IS DISCLAIMED.
26 /* Bluetooth HCI event handling. */
28 #include <asm/unaligned.h>
29 #include <linux/crypto.h>
30 #include <crypto/algapi.h>
32 #include <net/bluetooth/bluetooth.h>
33 #include <net/bluetooth/hci_core.h>
34 #include <net/bluetooth/mgmt.h>
36 #include "hci_request.h"
37 #include "hci_debugfs.h"
38 #include "hci_codec.h"
45 #define ZERO_KEY "\x00\x00\x00\x00\x00\x00\x00\x00" \
46 "\x00\x00\x00\x00\x00\x00\x00\x00"
48 #define secs_to_jiffies(_secs) msecs_to_jiffies((_secs) * 1000)
50 /* Handle HCI Event packets */
52 static void *hci_ev_skb_pull(struct hci_dev *hdev, struct sk_buff *skb,
57 data = skb_pull_data(skb, len);
59 bt_dev_err(hdev, "Malformed Event: 0x%2.2x", ev);
64 static void *hci_cc_skb_pull(struct hci_dev *hdev, struct sk_buff *skb,
69 data = skb_pull_data(skb, len);
71 bt_dev_err(hdev, "Malformed Command Complete: 0x%4.4x", op);
76 static void *hci_le_ev_skb_pull(struct hci_dev *hdev, struct sk_buff *skb,
81 data = skb_pull_data(skb, len);
83 bt_dev_err(hdev, "Malformed LE Event: 0x%2.2x", ev);
88 static u8 hci_cc_inquiry_cancel(struct hci_dev *hdev, void *data,
91 struct hci_ev_status *rp = data;
93 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
95 /* It is possible that we receive Inquiry Complete event right
96 * before we receive Inquiry Cancel Command Complete event, in
97 * which case the latter event should have status of Command
98 * Disallowed (0x0c). This should not be treated as error, since
99 * we actually achieve what Inquiry Cancel wants to achieve,
100 * which is to end the last Inquiry session.
102 if (rp->status == 0x0c && !test_bit(HCI_INQUIRY, &hdev->flags)) {
103 bt_dev_warn(hdev, "Ignoring error of Inquiry Cancel command");
110 clear_bit(HCI_INQUIRY, &hdev->flags);
111 smp_mb__after_atomic(); /* wake_up_bit advises about this barrier */
112 wake_up_bit(&hdev->flags, HCI_INQUIRY);
115 /* Set discovery state to stopped if we're not doing LE active
118 if (!hci_dev_test_flag(hdev, HCI_LE_SCAN) ||
119 hdev->le_scan_type != LE_SCAN_ACTIVE)
120 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
121 hci_dev_unlock(hdev);
123 hci_conn_check_pending(hdev);
128 static u8 hci_cc_periodic_inq(struct hci_dev *hdev, void *data,
131 struct hci_ev_status *rp = data;
133 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
138 hci_dev_set_flag(hdev, HCI_PERIODIC_INQ);
143 static u8 hci_cc_exit_periodic_inq(struct hci_dev *hdev, void *data,
146 struct hci_ev_status *rp = data;
148 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
153 hci_dev_clear_flag(hdev, HCI_PERIODIC_INQ);
155 hci_conn_check_pending(hdev);
160 static u8 hci_cc_remote_name_req_cancel(struct hci_dev *hdev, void *data,
163 struct hci_ev_status *rp = data;
165 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
170 static u8 hci_cc_role_discovery(struct hci_dev *hdev, void *data,
173 struct hci_rp_role_discovery *rp = data;
174 struct hci_conn *conn;
176 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
183 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
185 conn->role = rp->role;
187 hci_dev_unlock(hdev);
192 static u8 hci_cc_read_link_policy(struct hci_dev *hdev, void *data,
195 struct hci_rp_read_link_policy *rp = data;
196 struct hci_conn *conn;
198 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
205 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
207 conn->link_policy = __le16_to_cpu(rp->policy);
209 hci_dev_unlock(hdev);
214 static u8 hci_cc_write_link_policy(struct hci_dev *hdev, void *data,
217 struct hci_rp_write_link_policy *rp = data;
218 struct hci_conn *conn;
221 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
226 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LINK_POLICY);
232 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
234 conn->link_policy = get_unaligned_le16(sent + 2);
236 hci_dev_unlock(hdev);
241 static u8 hci_cc_read_def_link_policy(struct hci_dev *hdev, void *data,
244 struct hci_rp_read_def_link_policy *rp = data;
246 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
251 hdev->link_policy = __le16_to_cpu(rp->policy);
256 static u8 hci_cc_write_def_link_policy(struct hci_dev *hdev, void *data,
259 struct hci_ev_status *rp = data;
262 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
267 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_DEF_LINK_POLICY);
271 hdev->link_policy = get_unaligned_le16(sent);
276 static u8 hci_cc_reset(struct hci_dev *hdev, void *data, struct sk_buff *skb)
278 struct hci_ev_status *rp = data;
280 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
282 clear_bit(HCI_RESET, &hdev->flags);
287 /* Reset all non-persistent flags */
288 hci_dev_clear_volatile_flags(hdev);
290 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
292 hdev->inq_tx_power = HCI_TX_POWER_INVALID;
293 hdev->adv_tx_power = HCI_TX_POWER_INVALID;
295 memset(hdev->adv_data, 0, sizeof(hdev->adv_data));
296 hdev->adv_data_len = 0;
298 memset(hdev->scan_rsp_data, 0, sizeof(hdev->scan_rsp_data));
299 hdev->scan_rsp_data_len = 0;
301 hdev->le_scan_type = LE_SCAN_PASSIVE;
303 hdev->ssp_debug_mode = 0;
305 hci_bdaddr_list_clear(&hdev->le_accept_list);
306 hci_bdaddr_list_clear(&hdev->le_resolv_list);
311 static u8 hci_cc_read_stored_link_key(struct hci_dev *hdev, void *data,
314 struct hci_rp_read_stored_link_key *rp = data;
315 struct hci_cp_read_stored_link_key *sent;
317 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
319 sent = hci_sent_cmd_data(hdev, HCI_OP_READ_STORED_LINK_KEY);
323 if (!rp->status && sent->read_all == 0x01) {
324 hdev->stored_max_keys = le16_to_cpu(rp->max_keys);
325 hdev->stored_num_keys = le16_to_cpu(rp->num_keys);
331 static u8 hci_cc_delete_stored_link_key(struct hci_dev *hdev, void *data,
334 struct hci_rp_delete_stored_link_key *rp = data;
337 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
342 num_keys = le16_to_cpu(rp->num_keys);
344 if (num_keys <= hdev->stored_num_keys)
345 hdev->stored_num_keys -= num_keys;
347 hdev->stored_num_keys = 0;
352 static u8 hci_cc_write_local_name(struct hci_dev *hdev, void *data,
355 struct hci_ev_status *rp = data;
358 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
360 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LOCAL_NAME);
366 if (hci_dev_test_flag(hdev, HCI_MGMT))
367 mgmt_set_local_name_complete(hdev, sent, rp->status);
368 else if (!rp->status)
369 memcpy(hdev->dev_name, sent, HCI_MAX_NAME_LENGTH);
371 hci_dev_unlock(hdev);
376 static u8 hci_cc_read_local_name(struct hci_dev *hdev, void *data,
379 struct hci_rp_read_local_name *rp = data;
381 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
386 if (hci_dev_test_flag(hdev, HCI_SETUP) ||
387 hci_dev_test_flag(hdev, HCI_CONFIG))
388 memcpy(hdev->dev_name, rp->name, HCI_MAX_NAME_LENGTH);
393 static u8 hci_cc_write_auth_enable(struct hci_dev *hdev, void *data,
396 struct hci_ev_status *rp = data;
399 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
401 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_AUTH_ENABLE);
408 __u8 param = *((__u8 *) sent);
410 if (param == AUTH_ENABLED)
411 set_bit(HCI_AUTH, &hdev->flags);
413 clear_bit(HCI_AUTH, &hdev->flags);
416 if (hci_dev_test_flag(hdev, HCI_MGMT))
417 mgmt_auth_enable_complete(hdev, rp->status);
419 hci_dev_unlock(hdev);
424 static u8 hci_cc_write_encrypt_mode(struct hci_dev *hdev, void *data,
427 struct hci_ev_status *rp = data;
431 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
436 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_ENCRYPT_MODE);
440 param = *((__u8 *) sent);
443 set_bit(HCI_ENCRYPT, &hdev->flags);
445 clear_bit(HCI_ENCRYPT, &hdev->flags);
450 static u8 hci_cc_write_scan_enable(struct hci_dev *hdev, void *data,
453 struct hci_ev_status *rp = data;
457 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
459 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SCAN_ENABLE);
463 param = *((__u8 *) sent);
468 hdev->discov_timeout = 0;
472 if (param & SCAN_INQUIRY)
473 set_bit(HCI_ISCAN, &hdev->flags);
475 clear_bit(HCI_ISCAN, &hdev->flags);
477 if (param & SCAN_PAGE)
478 set_bit(HCI_PSCAN, &hdev->flags);
480 clear_bit(HCI_PSCAN, &hdev->flags);
483 hci_dev_unlock(hdev);
488 static u8 hci_cc_set_event_filter(struct hci_dev *hdev, void *data,
491 struct hci_ev_status *rp = data;
492 struct hci_cp_set_event_filter *cp;
495 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
500 sent = hci_sent_cmd_data(hdev, HCI_OP_SET_EVENT_FLT);
504 cp = (struct hci_cp_set_event_filter *)sent;
506 if (cp->flt_type == HCI_FLT_CLEAR_ALL)
507 hci_dev_clear_flag(hdev, HCI_EVENT_FILTER_CONFIGURED);
509 hci_dev_set_flag(hdev, HCI_EVENT_FILTER_CONFIGURED);
514 static u8 hci_cc_read_class_of_dev(struct hci_dev *hdev, void *data,
517 struct hci_rp_read_class_of_dev *rp = data;
519 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
524 memcpy(hdev->dev_class, rp->dev_class, 3);
526 bt_dev_dbg(hdev, "class 0x%.2x%.2x%.2x", hdev->dev_class[2],
527 hdev->dev_class[1], hdev->dev_class[0]);
532 static u8 hci_cc_write_class_of_dev(struct hci_dev *hdev, void *data,
535 struct hci_ev_status *rp = data;
538 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
540 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_CLASS_OF_DEV);
547 memcpy(hdev->dev_class, sent, 3);
549 if (hci_dev_test_flag(hdev, HCI_MGMT))
550 mgmt_set_class_of_dev_complete(hdev, sent, rp->status);
552 hci_dev_unlock(hdev);
557 static u8 hci_cc_read_voice_setting(struct hci_dev *hdev, void *data,
560 struct hci_rp_read_voice_setting *rp = data;
563 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
568 setting = __le16_to_cpu(rp->voice_setting);
570 if (hdev->voice_setting == setting)
573 hdev->voice_setting = setting;
575 bt_dev_dbg(hdev, "voice setting 0x%4.4x", setting);
578 hdev->notify(hdev, HCI_NOTIFY_VOICE_SETTING);
583 static u8 hci_cc_write_voice_setting(struct hci_dev *hdev, void *data,
586 struct hci_ev_status *rp = data;
590 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
595 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_VOICE_SETTING);
599 setting = get_unaligned_le16(sent);
601 if (hdev->voice_setting == setting)
604 hdev->voice_setting = setting;
606 bt_dev_dbg(hdev, "voice setting 0x%4.4x", setting);
609 hdev->notify(hdev, HCI_NOTIFY_VOICE_SETTING);
614 static u8 hci_cc_read_num_supported_iac(struct hci_dev *hdev, void *data,
617 struct hci_rp_read_num_supported_iac *rp = data;
619 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
624 hdev->num_iac = rp->num_iac;
626 bt_dev_dbg(hdev, "num iac %d", hdev->num_iac);
631 static u8 hci_cc_write_ssp_mode(struct hci_dev *hdev, void *data,
634 struct hci_ev_status *rp = data;
635 struct hci_cp_write_ssp_mode *sent;
637 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
639 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SSP_MODE);
647 hdev->features[1][0] |= LMP_HOST_SSP;
649 hdev->features[1][0] &= ~LMP_HOST_SSP;
654 hci_dev_set_flag(hdev, HCI_SSP_ENABLED);
656 hci_dev_clear_flag(hdev, HCI_SSP_ENABLED);
659 hci_dev_unlock(hdev);
664 static u8 hci_cc_write_sc_support(struct hci_dev *hdev, void *data,
667 struct hci_ev_status *rp = data;
668 struct hci_cp_write_sc_support *sent;
670 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
672 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SC_SUPPORT);
680 hdev->features[1][0] |= LMP_HOST_SC;
682 hdev->features[1][0] &= ~LMP_HOST_SC;
685 if (!hci_dev_test_flag(hdev, HCI_MGMT) && !rp->status) {
687 hci_dev_set_flag(hdev, HCI_SC_ENABLED);
689 hci_dev_clear_flag(hdev, HCI_SC_ENABLED);
692 hci_dev_unlock(hdev);
697 static u8 hci_cc_read_local_version(struct hci_dev *hdev, void *data,
700 struct hci_rp_read_local_version *rp = data;
702 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
707 if (hci_dev_test_flag(hdev, HCI_SETUP) ||
708 hci_dev_test_flag(hdev, HCI_CONFIG)) {
709 hdev->hci_ver = rp->hci_ver;
710 hdev->hci_rev = __le16_to_cpu(rp->hci_rev);
711 hdev->lmp_ver = rp->lmp_ver;
712 hdev->manufacturer = __le16_to_cpu(rp->manufacturer);
713 hdev->lmp_subver = __le16_to_cpu(rp->lmp_subver);
719 static u8 hci_cc_read_enc_key_size(struct hci_dev *hdev, void *data,
722 struct hci_rp_read_enc_key_size *rp = data;
723 struct hci_conn *conn;
725 u8 status = rp->status;
727 bt_dev_dbg(hdev, "status 0x%2.2x", status);
729 handle = le16_to_cpu(rp->handle);
733 conn = hci_conn_hash_lookup_handle(hdev, handle);
739 /* While unexpected, the read_enc_key_size command may fail. The most
740 * secure approach is to then assume the key size is 0 to force a
744 bt_dev_err(hdev, "failed to read key size for handle %u",
746 conn->enc_key_size = 0;
748 conn->enc_key_size = rp->key_size;
752 hci_encrypt_cfm(conn, 0);
755 hci_dev_unlock(hdev);
760 static u8 hci_cc_read_local_commands(struct hci_dev *hdev, void *data,
763 struct hci_rp_read_local_commands *rp = data;
765 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
770 if (hci_dev_test_flag(hdev, HCI_SETUP) ||
771 hci_dev_test_flag(hdev, HCI_CONFIG))
772 memcpy(hdev->commands, rp->commands, sizeof(hdev->commands));
777 static u8 hci_cc_read_auth_payload_timeout(struct hci_dev *hdev, void *data,
780 struct hci_rp_read_auth_payload_to *rp = data;
781 struct hci_conn *conn;
783 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
790 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
792 conn->auth_payload_timeout = __le16_to_cpu(rp->timeout);
794 hci_dev_unlock(hdev);
799 static u8 hci_cc_write_auth_payload_timeout(struct hci_dev *hdev, void *data,
802 struct hci_rp_write_auth_payload_to *rp = data;
803 struct hci_conn *conn;
806 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
808 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_AUTH_PAYLOAD_TO);
814 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
821 conn->auth_payload_timeout = get_unaligned_le16(sent + 2);
823 hci_encrypt_cfm(conn, 0);
826 hci_dev_unlock(hdev);
831 static u8 hci_cc_read_local_features(struct hci_dev *hdev, void *data,
834 struct hci_rp_read_local_features *rp = data;
836 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
841 memcpy(hdev->features, rp->features, 8);
843 /* Adjust default settings according to features
844 * supported by device. */
846 if (hdev->features[0][0] & LMP_3SLOT)
847 hdev->pkt_type |= (HCI_DM3 | HCI_DH3);
849 if (hdev->features[0][0] & LMP_5SLOT)
850 hdev->pkt_type |= (HCI_DM5 | HCI_DH5);
852 if (hdev->features[0][1] & LMP_HV2) {
853 hdev->pkt_type |= (HCI_HV2);
854 hdev->esco_type |= (ESCO_HV2);
857 if (hdev->features[0][1] & LMP_HV3) {
858 hdev->pkt_type |= (HCI_HV3);
859 hdev->esco_type |= (ESCO_HV3);
862 if (lmp_esco_capable(hdev))
863 hdev->esco_type |= (ESCO_EV3);
865 if (hdev->features[0][4] & LMP_EV4)
866 hdev->esco_type |= (ESCO_EV4);
868 if (hdev->features[0][4] & LMP_EV5)
869 hdev->esco_type |= (ESCO_EV5);
871 if (hdev->features[0][5] & LMP_EDR_ESCO_2M)
872 hdev->esco_type |= (ESCO_2EV3);
874 if (hdev->features[0][5] & LMP_EDR_ESCO_3M)
875 hdev->esco_type |= (ESCO_3EV3);
877 if (hdev->features[0][5] & LMP_EDR_3S_ESCO)
878 hdev->esco_type |= (ESCO_2EV5 | ESCO_3EV5);
883 static u8 hci_cc_read_local_ext_features(struct hci_dev *hdev, void *data,
886 struct hci_rp_read_local_ext_features *rp = data;
888 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
893 if (hdev->max_page < rp->max_page) {
894 if (test_bit(HCI_QUIRK_BROKEN_LOCAL_EXT_FEATURES_PAGE_2,
896 bt_dev_warn(hdev, "broken local ext features page 2");
898 hdev->max_page = rp->max_page;
901 if (rp->page < HCI_MAX_PAGES)
902 memcpy(hdev->features[rp->page], rp->features, 8);
907 static u8 hci_cc_read_flow_control_mode(struct hci_dev *hdev, void *data,
910 struct hci_rp_read_flow_control_mode *rp = data;
912 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
917 hdev->flow_ctl_mode = rp->mode;
922 static u8 hci_cc_read_buffer_size(struct hci_dev *hdev, void *data,
925 struct hci_rp_read_buffer_size *rp = data;
927 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
932 hdev->acl_mtu = __le16_to_cpu(rp->acl_mtu);
933 hdev->sco_mtu = rp->sco_mtu;
934 hdev->acl_pkts = __le16_to_cpu(rp->acl_max_pkt);
935 hdev->sco_pkts = __le16_to_cpu(rp->sco_max_pkt);
937 if (test_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks)) {
942 hdev->acl_cnt = hdev->acl_pkts;
943 hdev->sco_cnt = hdev->sco_pkts;
945 BT_DBG("%s acl mtu %d:%d sco mtu %d:%d", hdev->name, hdev->acl_mtu,
946 hdev->acl_pkts, hdev->sco_mtu, hdev->sco_pkts);
951 static u8 hci_cc_read_bd_addr(struct hci_dev *hdev, void *data,
954 struct hci_rp_read_bd_addr *rp = data;
956 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
961 if (test_bit(HCI_INIT, &hdev->flags))
962 bacpy(&hdev->bdaddr, &rp->bdaddr);
964 if (hci_dev_test_flag(hdev, HCI_SETUP))
965 bacpy(&hdev->setup_addr, &rp->bdaddr);
970 static u8 hci_cc_read_local_pairing_opts(struct hci_dev *hdev, void *data,
973 struct hci_rp_read_local_pairing_opts *rp = data;
975 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
980 if (hci_dev_test_flag(hdev, HCI_SETUP) ||
981 hci_dev_test_flag(hdev, HCI_CONFIG)) {
982 hdev->pairing_opts = rp->pairing_opts;
983 hdev->max_enc_key_size = rp->max_key_size;
989 static u8 hci_cc_read_page_scan_activity(struct hci_dev *hdev, void *data,
992 struct hci_rp_read_page_scan_activity *rp = data;
994 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
999 if (test_bit(HCI_INIT, &hdev->flags)) {
1000 hdev->page_scan_interval = __le16_to_cpu(rp->interval);
1001 hdev->page_scan_window = __le16_to_cpu(rp->window);
1007 static u8 hci_cc_write_page_scan_activity(struct hci_dev *hdev, void *data,
1008 struct sk_buff *skb)
1010 struct hci_ev_status *rp = data;
1011 struct hci_cp_write_page_scan_activity *sent;
1013 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1018 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_PAGE_SCAN_ACTIVITY);
1022 hdev->page_scan_interval = __le16_to_cpu(sent->interval);
1023 hdev->page_scan_window = __le16_to_cpu(sent->window);
1028 static u8 hci_cc_read_page_scan_type(struct hci_dev *hdev, void *data,
1029 struct sk_buff *skb)
1031 struct hci_rp_read_page_scan_type *rp = data;
1033 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1038 if (test_bit(HCI_INIT, &hdev->flags))
1039 hdev->page_scan_type = rp->type;
1044 static u8 hci_cc_write_page_scan_type(struct hci_dev *hdev, void *data,
1045 struct sk_buff *skb)
1047 struct hci_ev_status *rp = data;
1050 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1055 type = hci_sent_cmd_data(hdev, HCI_OP_WRITE_PAGE_SCAN_TYPE);
1057 hdev->page_scan_type = *type;
1062 static u8 hci_cc_read_data_block_size(struct hci_dev *hdev, void *data,
1063 struct sk_buff *skb)
1065 struct hci_rp_read_data_block_size *rp = data;
1067 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1072 hdev->block_mtu = __le16_to_cpu(rp->max_acl_len);
1073 hdev->block_len = __le16_to_cpu(rp->block_len);
1074 hdev->num_blocks = __le16_to_cpu(rp->num_blocks);
1076 hdev->block_cnt = hdev->num_blocks;
1078 BT_DBG("%s blk mtu %d cnt %d len %d", hdev->name, hdev->block_mtu,
1079 hdev->block_cnt, hdev->block_len);
1084 static u8 hci_cc_read_clock(struct hci_dev *hdev, void *data,
1085 struct sk_buff *skb)
1087 struct hci_rp_read_clock *rp = data;
1088 struct hci_cp_read_clock *cp;
1089 struct hci_conn *conn;
1091 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1098 cp = hci_sent_cmd_data(hdev, HCI_OP_READ_CLOCK);
1102 if (cp->which == 0x00) {
1103 hdev->clock = le32_to_cpu(rp->clock);
1107 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
1109 conn->clock = le32_to_cpu(rp->clock);
1110 conn->clock_accuracy = le16_to_cpu(rp->accuracy);
1114 hci_dev_unlock(hdev);
1118 static u8 hci_cc_read_local_amp_info(struct hci_dev *hdev, void *data,
1119 struct sk_buff *skb)
1121 struct hci_rp_read_local_amp_info *rp = data;
1123 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1128 hdev->amp_status = rp->amp_status;
1129 hdev->amp_total_bw = __le32_to_cpu(rp->total_bw);
1130 hdev->amp_max_bw = __le32_to_cpu(rp->max_bw);
1131 hdev->amp_min_latency = __le32_to_cpu(rp->min_latency);
1132 hdev->amp_max_pdu = __le32_to_cpu(rp->max_pdu);
1133 hdev->amp_type = rp->amp_type;
1134 hdev->amp_pal_cap = __le16_to_cpu(rp->pal_cap);
1135 hdev->amp_assoc_size = __le16_to_cpu(rp->max_assoc_size);
1136 hdev->amp_be_flush_to = __le32_to_cpu(rp->be_flush_to);
1137 hdev->amp_max_flush_to = __le32_to_cpu(rp->max_flush_to);
1142 static u8 hci_cc_read_inq_rsp_tx_power(struct hci_dev *hdev, void *data,
1143 struct sk_buff *skb)
1145 struct hci_rp_read_inq_rsp_tx_power *rp = data;
1147 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1152 hdev->inq_tx_power = rp->tx_power;
1157 static u8 hci_cc_read_def_err_data_reporting(struct hci_dev *hdev, void *data,
1158 struct sk_buff *skb)
1160 struct hci_rp_read_def_err_data_reporting *rp = data;
1162 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1167 hdev->err_data_reporting = rp->err_data_reporting;
1172 static u8 hci_cc_write_def_err_data_reporting(struct hci_dev *hdev, void *data,
1173 struct sk_buff *skb)
1175 struct hci_ev_status *rp = data;
1176 struct hci_cp_write_def_err_data_reporting *cp;
1178 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1183 cp = hci_sent_cmd_data(hdev, HCI_OP_WRITE_DEF_ERR_DATA_REPORTING);
1187 hdev->err_data_reporting = cp->err_data_reporting;
1192 static u8 hci_cc_pin_code_reply(struct hci_dev *hdev, void *data,
1193 struct sk_buff *skb)
1195 struct hci_rp_pin_code_reply *rp = data;
1196 struct hci_cp_pin_code_reply *cp;
1197 struct hci_conn *conn;
1199 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1203 if (hci_dev_test_flag(hdev, HCI_MGMT))
1204 mgmt_pin_code_reply_complete(hdev, &rp->bdaddr, rp->status);
1209 cp = hci_sent_cmd_data(hdev, HCI_OP_PIN_CODE_REPLY);
1213 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
1215 conn->pin_length = cp->pin_len;
1218 hci_dev_unlock(hdev);
1222 static u8 hci_cc_pin_code_neg_reply(struct hci_dev *hdev, void *data,
1223 struct sk_buff *skb)
1225 struct hci_rp_pin_code_neg_reply *rp = data;
1227 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1231 if (hci_dev_test_flag(hdev, HCI_MGMT))
1232 mgmt_pin_code_neg_reply_complete(hdev, &rp->bdaddr,
1235 hci_dev_unlock(hdev);
1240 static u8 hci_cc_le_read_buffer_size(struct hci_dev *hdev, void *data,
1241 struct sk_buff *skb)
1243 struct hci_rp_le_read_buffer_size *rp = data;
1245 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1250 hdev->le_mtu = __le16_to_cpu(rp->le_mtu);
1251 hdev->le_pkts = rp->le_max_pkt;
1253 hdev->le_cnt = hdev->le_pkts;
1255 BT_DBG("%s le mtu %d:%d", hdev->name, hdev->le_mtu, hdev->le_pkts);
1260 static u8 hci_cc_le_read_local_features(struct hci_dev *hdev, void *data,
1261 struct sk_buff *skb)
1263 struct hci_rp_le_read_local_features *rp = data;
1265 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
1270 memcpy(hdev->le_features, rp->features, 8);
1275 static u8 hci_cc_le_read_adv_tx_power(struct hci_dev *hdev, void *data,
1276 struct sk_buff *skb)
1278 struct hci_rp_le_read_adv_tx_power *rp = data;
1280 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1285 hdev->adv_tx_power = rp->tx_power;
1290 static u8 hci_cc_user_confirm_reply(struct hci_dev *hdev, void *data,
1291 struct sk_buff *skb)
1293 struct hci_rp_user_confirm_reply *rp = data;
1295 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1299 if (hci_dev_test_flag(hdev, HCI_MGMT))
1300 mgmt_user_confirm_reply_complete(hdev, &rp->bdaddr, ACL_LINK, 0,
1303 hci_dev_unlock(hdev);
1308 static u8 hci_cc_user_confirm_neg_reply(struct hci_dev *hdev, void *data,
1309 struct sk_buff *skb)
1311 struct hci_rp_user_confirm_reply *rp = data;
1313 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1317 if (hci_dev_test_flag(hdev, HCI_MGMT))
1318 mgmt_user_confirm_neg_reply_complete(hdev, &rp->bdaddr,
1319 ACL_LINK, 0, rp->status);
1321 hci_dev_unlock(hdev);
1326 static u8 hci_cc_user_passkey_reply(struct hci_dev *hdev, void *data,
1327 struct sk_buff *skb)
1329 struct hci_rp_user_confirm_reply *rp = data;
1331 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1335 if (hci_dev_test_flag(hdev, HCI_MGMT))
1336 mgmt_user_passkey_reply_complete(hdev, &rp->bdaddr, ACL_LINK,
1339 hci_dev_unlock(hdev);
1344 static u8 hci_cc_user_passkey_neg_reply(struct hci_dev *hdev, void *data,
1345 struct sk_buff *skb)
1347 struct hci_rp_user_confirm_reply *rp = data;
1349 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1353 if (hci_dev_test_flag(hdev, HCI_MGMT))
1354 mgmt_user_passkey_neg_reply_complete(hdev, &rp->bdaddr,
1355 ACL_LINK, 0, rp->status);
1357 hci_dev_unlock(hdev);
1362 static u8 hci_cc_read_local_oob_data(struct hci_dev *hdev, void *data,
1363 struct sk_buff *skb)
1365 struct hci_rp_read_local_oob_data *rp = data;
1367 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1372 static u8 hci_cc_read_local_oob_ext_data(struct hci_dev *hdev, void *data,
1373 struct sk_buff *skb)
1375 struct hci_rp_read_local_oob_ext_data *rp = data;
1377 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1382 static u8 hci_cc_le_set_random_addr(struct hci_dev *hdev, void *data,
1383 struct sk_buff *skb)
1385 struct hci_ev_status *rp = data;
1388 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1393 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_RANDOM_ADDR);
1399 bacpy(&hdev->random_addr, sent);
1401 if (!bacmp(&hdev->rpa, sent)) {
1402 hci_dev_clear_flag(hdev, HCI_RPA_EXPIRED);
1403 queue_delayed_work(hdev->workqueue, &hdev->rpa_expired,
1404 secs_to_jiffies(hdev->rpa_timeout));
1407 hci_dev_unlock(hdev);
1412 static u8 hci_cc_le_set_default_phy(struct hci_dev *hdev, void *data,
1413 struct sk_buff *skb)
1415 struct hci_ev_status *rp = data;
1416 struct hci_cp_le_set_default_phy *cp;
1418 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1423 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_DEFAULT_PHY);
1429 hdev->le_tx_def_phys = cp->tx_phys;
1430 hdev->le_rx_def_phys = cp->rx_phys;
1432 hci_dev_unlock(hdev);
1437 static u8 hci_cc_le_set_adv_set_random_addr(struct hci_dev *hdev, void *data,
1438 struct sk_buff *skb)
1440 struct hci_ev_status *rp = data;
1441 struct hci_cp_le_set_adv_set_rand_addr *cp;
1442 struct adv_info *adv;
1444 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1449 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADV_SET_RAND_ADDR);
1450 /* Update only in case the adv instance since handle 0x00 shall be using
1451 * HCI_OP_LE_SET_RANDOM_ADDR since that allows both extended and
1452 * non-extended adverting.
1454 if (!cp || !cp->handle)
1459 adv = hci_find_adv_instance(hdev, cp->handle);
1461 bacpy(&adv->random_addr, &cp->bdaddr);
1462 if (!bacmp(&hdev->rpa, &cp->bdaddr)) {
1463 adv->rpa_expired = false;
1464 queue_delayed_work(hdev->workqueue,
1465 &adv->rpa_expired_cb,
1466 secs_to_jiffies(hdev->rpa_timeout));
1470 hci_dev_unlock(hdev);
1475 static u8 hci_cc_le_remove_adv_set(struct hci_dev *hdev, void *data,
1476 struct sk_buff *skb)
1478 struct hci_ev_status *rp = data;
1482 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1487 instance = hci_sent_cmd_data(hdev, HCI_OP_LE_REMOVE_ADV_SET);
1493 err = hci_remove_adv_instance(hdev, *instance);
1495 mgmt_advertising_removed(hci_skb_sk(hdev->sent_cmd), hdev,
1498 hci_dev_unlock(hdev);
1503 static u8 hci_cc_le_clear_adv_sets(struct hci_dev *hdev, void *data,
1504 struct sk_buff *skb)
1506 struct hci_ev_status *rp = data;
1507 struct adv_info *adv, *n;
1510 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1515 if (!hci_sent_cmd_data(hdev, HCI_OP_LE_CLEAR_ADV_SETS))
1520 list_for_each_entry_safe(adv, n, &hdev->adv_instances, list) {
1521 u8 instance = adv->instance;
1523 err = hci_remove_adv_instance(hdev, instance);
1525 mgmt_advertising_removed(hci_skb_sk(hdev->sent_cmd),
1529 hci_dev_unlock(hdev);
1534 static u8 hci_cc_le_read_transmit_power(struct hci_dev *hdev, void *data,
1535 struct sk_buff *skb)
1537 struct hci_rp_le_read_transmit_power *rp = data;
1539 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1544 hdev->min_le_tx_power = rp->min_le_tx_power;
1545 hdev->max_le_tx_power = rp->max_le_tx_power;
1550 static u8 hci_cc_le_set_privacy_mode(struct hci_dev *hdev, void *data,
1551 struct sk_buff *skb)
1553 struct hci_ev_status *rp = data;
1554 struct hci_cp_le_set_privacy_mode *cp;
1555 struct hci_conn_params *params;
1557 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1562 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_PRIVACY_MODE);
1568 params = hci_conn_params_lookup(hdev, &cp->bdaddr, cp->bdaddr_type);
1570 WRITE_ONCE(params->privacy_mode, cp->mode);
1572 hci_dev_unlock(hdev);
1577 static u8 hci_cc_le_set_adv_enable(struct hci_dev *hdev, void *data,
1578 struct sk_buff *skb)
1580 struct hci_ev_status *rp = data;
1583 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1588 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADV_ENABLE);
1594 /* If we're doing connection initiation as peripheral. Set a
1595 * timeout in case something goes wrong.
1598 struct hci_conn *conn;
1600 hci_dev_set_flag(hdev, HCI_LE_ADV);
1602 conn = hci_lookup_le_connect(hdev);
1604 queue_delayed_work(hdev->workqueue,
1605 &conn->le_conn_timeout,
1606 conn->conn_timeout);
1608 hci_dev_clear_flag(hdev, HCI_LE_ADV);
1611 hci_dev_unlock(hdev);
1616 static u8 hci_cc_le_set_ext_adv_enable(struct hci_dev *hdev, void *data,
1617 struct sk_buff *skb)
1619 struct hci_cp_le_set_ext_adv_enable *cp;
1620 struct hci_cp_ext_adv_set *set;
1621 struct adv_info *adv = NULL, *n;
1622 struct hci_ev_status *rp = data;
1624 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1629 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_EXT_ADV_ENABLE);
1633 set = (void *)cp->data;
1637 if (cp->num_of_sets)
1638 adv = hci_find_adv_instance(hdev, set->handle);
1641 struct hci_conn *conn;
1643 hci_dev_set_flag(hdev, HCI_LE_ADV);
1645 if (adv && !adv->periodic)
1646 adv->enabled = true;
1648 conn = hci_lookup_le_connect(hdev);
1650 queue_delayed_work(hdev->workqueue,
1651 &conn->le_conn_timeout,
1652 conn->conn_timeout);
1654 if (cp->num_of_sets) {
1656 adv->enabled = false;
1658 /* If just one instance was disabled check if there are
1659 * any other instance enabled before clearing HCI_LE_ADV
1661 list_for_each_entry_safe(adv, n, &hdev->adv_instances,
1667 /* All instances shall be considered disabled */
1668 list_for_each_entry_safe(adv, n, &hdev->adv_instances,
1670 adv->enabled = false;
1673 hci_dev_clear_flag(hdev, HCI_LE_ADV);
1677 hci_dev_unlock(hdev);
1681 static u8 hci_cc_le_set_scan_param(struct hci_dev *hdev, void *data,
1682 struct sk_buff *skb)
1684 struct hci_cp_le_set_scan_param *cp;
1685 struct hci_ev_status *rp = data;
1687 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1692 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_SCAN_PARAM);
1698 hdev->le_scan_type = cp->type;
1700 hci_dev_unlock(hdev);
1705 static u8 hci_cc_le_set_ext_scan_param(struct hci_dev *hdev, void *data,
1706 struct sk_buff *skb)
1708 struct hci_cp_le_set_ext_scan_params *cp;
1709 struct hci_ev_status *rp = data;
1710 struct hci_cp_le_scan_phy_params *phy_param;
1712 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1717 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_EXT_SCAN_PARAMS);
1721 phy_param = (void *)cp->data;
1725 hdev->le_scan_type = phy_param->type;
1727 hci_dev_unlock(hdev);
1732 static bool has_pending_adv_report(struct hci_dev *hdev)
1734 struct discovery_state *d = &hdev->discovery;
1736 return bacmp(&d->last_adv_addr, BDADDR_ANY);
1739 static void clear_pending_adv_report(struct hci_dev *hdev)
1741 struct discovery_state *d = &hdev->discovery;
1743 bacpy(&d->last_adv_addr, BDADDR_ANY);
1744 d->last_adv_data_len = 0;
1747 static void store_pending_adv_report(struct hci_dev *hdev, bdaddr_t *bdaddr,
1748 u8 bdaddr_type, s8 rssi, u32 flags,
1751 struct discovery_state *d = &hdev->discovery;
1753 if (len > max_adv_len(hdev))
1756 bacpy(&d->last_adv_addr, bdaddr);
1757 d->last_adv_addr_type = bdaddr_type;
1758 d->last_adv_rssi = rssi;
1759 d->last_adv_flags = flags;
1760 memcpy(d->last_adv_data, data, len);
1761 d->last_adv_data_len = len;
1764 static void le_set_scan_enable_complete(struct hci_dev *hdev, u8 enable)
1769 case LE_SCAN_ENABLE:
1770 hci_dev_set_flag(hdev, HCI_LE_SCAN);
1771 if (hdev->le_scan_type == LE_SCAN_ACTIVE)
1772 clear_pending_adv_report(hdev);
1773 if (hci_dev_test_flag(hdev, HCI_MESH))
1774 hci_discovery_set_state(hdev, DISCOVERY_FINDING);
1777 case LE_SCAN_DISABLE:
1778 /* We do this here instead of when setting DISCOVERY_STOPPED
1779 * since the latter would potentially require waiting for
1780 * inquiry to stop too.
1782 if (has_pending_adv_report(hdev)) {
1783 struct discovery_state *d = &hdev->discovery;
1785 mgmt_device_found(hdev, &d->last_adv_addr, LE_LINK,
1786 d->last_adv_addr_type, NULL,
1787 d->last_adv_rssi, d->last_adv_flags,
1789 d->last_adv_data_len, NULL, 0, 0);
1792 /* Cancel this timer so that we don't try to disable scanning
1793 * when it's already disabled.
1795 cancel_delayed_work(&hdev->le_scan_disable);
1797 hci_dev_clear_flag(hdev, HCI_LE_SCAN);
1799 /* The HCI_LE_SCAN_INTERRUPTED flag indicates that we
1800 * interrupted scanning due to a connect request. Mark
1801 * therefore discovery as stopped.
1803 if (hci_dev_test_and_clear_flag(hdev, HCI_LE_SCAN_INTERRUPTED))
1804 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
1805 else if (!hci_dev_test_flag(hdev, HCI_LE_ADV) &&
1806 hdev->discovery.state == DISCOVERY_FINDING)
1807 queue_work(hdev->workqueue, &hdev->reenable_adv_work);
1812 bt_dev_err(hdev, "use of reserved LE_Scan_Enable param %d",
1817 hci_dev_unlock(hdev);
1820 static u8 hci_cc_le_set_scan_enable(struct hci_dev *hdev, void *data,
1821 struct sk_buff *skb)
1823 struct hci_cp_le_set_scan_enable *cp;
1824 struct hci_ev_status *rp = data;
1826 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1831 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_SCAN_ENABLE);
1835 le_set_scan_enable_complete(hdev, cp->enable);
1840 static u8 hci_cc_le_set_ext_scan_enable(struct hci_dev *hdev, void *data,
1841 struct sk_buff *skb)
1843 struct hci_cp_le_set_ext_scan_enable *cp;
1844 struct hci_ev_status *rp = data;
1846 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1851 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_EXT_SCAN_ENABLE);
1855 le_set_scan_enable_complete(hdev, cp->enable);
1860 static u8 hci_cc_le_read_num_adv_sets(struct hci_dev *hdev, void *data,
1861 struct sk_buff *skb)
1863 struct hci_rp_le_read_num_supported_adv_sets *rp = data;
1865 bt_dev_dbg(hdev, "status 0x%2.2x No of Adv sets %u", rp->status,
1871 hdev->le_num_of_adv_sets = rp->num_of_sets;
1876 static u8 hci_cc_le_read_accept_list_size(struct hci_dev *hdev, void *data,
1877 struct sk_buff *skb)
1879 struct hci_rp_le_read_accept_list_size *rp = data;
1881 bt_dev_dbg(hdev, "status 0x%2.2x size %u", rp->status, rp->size);
1886 hdev->le_accept_list_size = rp->size;
1891 static u8 hci_cc_le_clear_accept_list(struct hci_dev *hdev, void *data,
1892 struct sk_buff *skb)
1894 struct hci_ev_status *rp = data;
1896 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1902 hci_bdaddr_list_clear(&hdev->le_accept_list);
1903 hci_dev_unlock(hdev);
1908 static u8 hci_cc_le_add_to_accept_list(struct hci_dev *hdev, void *data,
1909 struct sk_buff *skb)
1911 struct hci_cp_le_add_to_accept_list *sent;
1912 struct hci_ev_status *rp = data;
1914 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1919 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_ADD_TO_ACCEPT_LIST);
1924 hci_bdaddr_list_add(&hdev->le_accept_list, &sent->bdaddr,
1926 hci_dev_unlock(hdev);
1931 static u8 hci_cc_le_del_from_accept_list(struct hci_dev *hdev, void *data,
1932 struct sk_buff *skb)
1934 struct hci_cp_le_del_from_accept_list *sent;
1935 struct hci_ev_status *rp = data;
1937 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1942 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_DEL_FROM_ACCEPT_LIST);
1947 hci_bdaddr_list_del(&hdev->le_accept_list, &sent->bdaddr,
1949 hci_dev_unlock(hdev);
1954 static u8 hci_cc_le_read_supported_states(struct hci_dev *hdev, void *data,
1955 struct sk_buff *skb)
1957 struct hci_rp_le_read_supported_states *rp = data;
1959 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1964 memcpy(hdev->le_states, rp->le_states, 8);
1969 static u8 hci_cc_le_read_def_data_len(struct hci_dev *hdev, void *data,
1970 struct sk_buff *skb)
1972 struct hci_rp_le_read_def_data_len *rp = data;
1974 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1979 hdev->le_def_tx_len = le16_to_cpu(rp->tx_len);
1980 hdev->le_def_tx_time = le16_to_cpu(rp->tx_time);
1985 static u8 hci_cc_le_write_def_data_len(struct hci_dev *hdev, void *data,
1986 struct sk_buff *skb)
1988 struct hci_cp_le_write_def_data_len *sent;
1989 struct hci_ev_status *rp = data;
1991 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1996 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_WRITE_DEF_DATA_LEN);
2000 hdev->le_def_tx_len = le16_to_cpu(sent->tx_len);
2001 hdev->le_def_tx_time = le16_to_cpu(sent->tx_time);
2006 static u8 hci_cc_le_add_to_resolv_list(struct hci_dev *hdev, void *data,
2007 struct sk_buff *skb)
2009 struct hci_cp_le_add_to_resolv_list *sent;
2010 struct hci_ev_status *rp = data;
2012 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2017 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_ADD_TO_RESOLV_LIST);
2022 hci_bdaddr_list_add_with_irk(&hdev->le_resolv_list, &sent->bdaddr,
2023 sent->bdaddr_type, sent->peer_irk,
2025 hci_dev_unlock(hdev);
2030 static u8 hci_cc_le_del_from_resolv_list(struct hci_dev *hdev, void *data,
2031 struct sk_buff *skb)
2033 struct hci_cp_le_del_from_resolv_list *sent;
2034 struct hci_ev_status *rp = data;
2036 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2041 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_DEL_FROM_RESOLV_LIST);
2046 hci_bdaddr_list_del_with_irk(&hdev->le_resolv_list, &sent->bdaddr,
2048 hci_dev_unlock(hdev);
2053 static u8 hci_cc_le_clear_resolv_list(struct hci_dev *hdev, void *data,
2054 struct sk_buff *skb)
2056 struct hci_ev_status *rp = data;
2058 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2064 hci_bdaddr_list_clear(&hdev->le_resolv_list);
2065 hci_dev_unlock(hdev);
2070 static u8 hci_cc_le_read_resolv_list_size(struct hci_dev *hdev, void *data,
2071 struct sk_buff *skb)
2073 struct hci_rp_le_read_resolv_list_size *rp = data;
2075 bt_dev_dbg(hdev, "status 0x%2.2x size %u", rp->status, rp->size);
2080 hdev->le_resolv_list_size = rp->size;
2085 static u8 hci_cc_le_set_addr_resolution_enable(struct hci_dev *hdev, void *data,
2086 struct sk_buff *skb)
2088 struct hci_ev_status *rp = data;
2091 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2096 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADDR_RESOLV_ENABLE);
2103 hci_dev_set_flag(hdev, HCI_LL_RPA_RESOLUTION);
2105 hci_dev_clear_flag(hdev, HCI_LL_RPA_RESOLUTION);
2107 hci_dev_unlock(hdev);
2112 static u8 hci_cc_le_read_max_data_len(struct hci_dev *hdev, void *data,
2113 struct sk_buff *skb)
2115 struct hci_rp_le_read_max_data_len *rp = data;
2117 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2122 hdev->le_max_tx_len = le16_to_cpu(rp->tx_len);
2123 hdev->le_max_tx_time = le16_to_cpu(rp->tx_time);
2124 hdev->le_max_rx_len = le16_to_cpu(rp->rx_len);
2125 hdev->le_max_rx_time = le16_to_cpu(rp->rx_time);
2130 static u8 hci_cc_write_le_host_supported(struct hci_dev *hdev, void *data,
2131 struct sk_buff *skb)
2133 struct hci_cp_write_le_host_supported *sent;
2134 struct hci_ev_status *rp = data;
2136 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2141 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LE_HOST_SUPPORTED);
2148 hdev->features[1][0] |= LMP_HOST_LE;
2149 hci_dev_set_flag(hdev, HCI_LE_ENABLED);
2151 hdev->features[1][0] &= ~LMP_HOST_LE;
2152 hci_dev_clear_flag(hdev, HCI_LE_ENABLED);
2153 hci_dev_clear_flag(hdev, HCI_ADVERTISING);
2157 hdev->features[1][0] |= LMP_HOST_LE_BREDR;
2159 hdev->features[1][0] &= ~LMP_HOST_LE_BREDR;
2161 hci_dev_unlock(hdev);
2166 static u8 hci_cc_set_adv_param(struct hci_dev *hdev, void *data,
2167 struct sk_buff *skb)
2169 struct hci_cp_le_set_adv_param *cp;
2170 struct hci_ev_status *rp = data;
2172 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2177 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADV_PARAM);
2182 hdev->adv_addr_type = cp->own_address_type;
2183 hci_dev_unlock(hdev);
2188 static u8 hci_cc_set_ext_adv_param(struct hci_dev *hdev, void *data,
2189 struct sk_buff *skb)
2191 struct hci_rp_le_set_ext_adv_params *rp = data;
2192 struct hci_cp_le_set_ext_adv_params *cp;
2193 struct adv_info *adv_instance;
2195 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2200 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_EXT_ADV_PARAMS);
2205 hdev->adv_addr_type = cp->own_addr_type;
2207 /* Store in hdev for instance 0 */
2208 hdev->adv_tx_power = rp->tx_power;
2210 adv_instance = hci_find_adv_instance(hdev, cp->handle);
2212 adv_instance->tx_power = rp->tx_power;
2214 /* Update adv data as tx power is known now */
2215 hci_update_adv_data(hdev, cp->handle);
2217 hci_dev_unlock(hdev);
2222 static u8 hci_cc_read_rssi(struct hci_dev *hdev, void *data,
2223 struct sk_buff *skb)
2225 struct hci_rp_read_rssi *rp = data;
2226 struct hci_conn *conn;
2228 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2235 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
2237 conn->rssi = rp->rssi;
2239 hci_dev_unlock(hdev);
2244 static u8 hci_cc_read_tx_power(struct hci_dev *hdev, void *data,
2245 struct sk_buff *skb)
2247 struct hci_cp_read_tx_power *sent;
2248 struct hci_rp_read_tx_power *rp = data;
2249 struct hci_conn *conn;
2251 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2256 sent = hci_sent_cmd_data(hdev, HCI_OP_READ_TX_POWER);
2262 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
2266 switch (sent->type) {
2268 conn->tx_power = rp->tx_power;
2271 conn->max_tx_power = rp->tx_power;
2276 hci_dev_unlock(hdev);
2280 static u8 hci_cc_write_ssp_debug_mode(struct hci_dev *hdev, void *data,
2281 struct sk_buff *skb)
2283 struct hci_ev_status *rp = data;
2286 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2291 mode = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SSP_DEBUG_MODE);
2293 hdev->ssp_debug_mode = *mode;
2298 static void hci_cs_inquiry(struct hci_dev *hdev, __u8 status)
2300 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2303 hci_conn_check_pending(hdev);
2307 set_bit(HCI_INQUIRY, &hdev->flags);
2310 static void hci_cs_create_conn(struct hci_dev *hdev, __u8 status)
2312 struct hci_cp_create_conn *cp;
2313 struct hci_conn *conn;
2315 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2317 cp = hci_sent_cmd_data(hdev, HCI_OP_CREATE_CONN);
2323 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
2325 bt_dev_dbg(hdev, "bdaddr %pMR hcon %p", &cp->bdaddr, conn);
2328 if (conn && conn->state == BT_CONNECT) {
2329 if (status != 0x0c || conn->attempt > 2) {
2330 conn->state = BT_CLOSED;
2331 hci_connect_cfm(conn, status);
2334 conn->state = BT_CONNECT2;
2338 conn = hci_conn_add(hdev, ACL_LINK, &cp->bdaddr,
2341 bt_dev_err(hdev, "no memory for new connection");
2345 hci_dev_unlock(hdev);
2348 static void hci_cs_add_sco(struct hci_dev *hdev, __u8 status)
2350 struct hci_cp_add_sco *cp;
2351 struct hci_conn *acl;
2352 struct hci_link *link;
2355 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2360 cp = hci_sent_cmd_data(hdev, HCI_OP_ADD_SCO);
2364 handle = __le16_to_cpu(cp->handle);
2366 bt_dev_dbg(hdev, "handle 0x%4.4x", handle);
2370 acl = hci_conn_hash_lookup_handle(hdev, handle);
2372 link = list_first_entry_or_null(&acl->link_list,
2373 struct hci_link, list);
2374 if (link && link->conn) {
2375 link->conn->state = BT_CLOSED;
2377 hci_connect_cfm(link->conn, status);
2378 hci_conn_del(link->conn);
2382 hci_dev_unlock(hdev);
2385 static void hci_cs_auth_requested(struct hci_dev *hdev, __u8 status)
2387 struct hci_cp_auth_requested *cp;
2388 struct hci_conn *conn;
2390 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2395 cp = hci_sent_cmd_data(hdev, HCI_OP_AUTH_REQUESTED);
2401 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2403 if (conn->state == BT_CONFIG) {
2404 hci_connect_cfm(conn, status);
2405 hci_conn_drop(conn);
2409 hci_dev_unlock(hdev);
2412 static void hci_cs_set_conn_encrypt(struct hci_dev *hdev, __u8 status)
2414 struct hci_cp_set_conn_encrypt *cp;
2415 struct hci_conn *conn;
2417 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2422 cp = hci_sent_cmd_data(hdev, HCI_OP_SET_CONN_ENCRYPT);
2428 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2430 if (conn->state == BT_CONFIG) {
2431 hci_connect_cfm(conn, status);
2432 hci_conn_drop(conn);
2436 hci_dev_unlock(hdev);
2439 static int hci_outgoing_auth_needed(struct hci_dev *hdev,
2440 struct hci_conn *conn)
2442 if (conn->state != BT_CONFIG || !conn->out)
2445 if (conn->pending_sec_level == BT_SECURITY_SDP)
2448 /* Only request authentication for SSP connections or non-SSP
2449 * devices with sec_level MEDIUM or HIGH or if MITM protection
2452 if (!hci_conn_ssp_enabled(conn) && !(conn->auth_type & 0x01) &&
2453 conn->pending_sec_level != BT_SECURITY_FIPS &&
2454 conn->pending_sec_level != BT_SECURITY_HIGH &&
2455 conn->pending_sec_level != BT_SECURITY_MEDIUM)
2461 static int hci_resolve_name(struct hci_dev *hdev,
2462 struct inquiry_entry *e)
2464 struct hci_cp_remote_name_req cp;
2466 memset(&cp, 0, sizeof(cp));
2468 bacpy(&cp.bdaddr, &e->data.bdaddr);
2469 cp.pscan_rep_mode = e->data.pscan_rep_mode;
2470 cp.pscan_mode = e->data.pscan_mode;
2471 cp.clock_offset = e->data.clock_offset;
2473 return hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp);
2476 static bool hci_resolve_next_name(struct hci_dev *hdev)
2478 struct discovery_state *discov = &hdev->discovery;
2479 struct inquiry_entry *e;
2481 if (list_empty(&discov->resolve))
2484 /* We should stop if we already spent too much time resolving names. */
2485 if (time_after(jiffies, discov->name_resolve_timeout)) {
2486 bt_dev_warn_ratelimited(hdev, "Name resolve takes too long.");
2490 e = hci_inquiry_cache_lookup_resolve(hdev, BDADDR_ANY, NAME_NEEDED);
2494 if (hci_resolve_name(hdev, e) == 0) {
2495 e->name_state = NAME_PENDING;
2502 static void hci_check_pending_name(struct hci_dev *hdev, struct hci_conn *conn,
2503 bdaddr_t *bdaddr, u8 *name, u8 name_len)
2505 struct discovery_state *discov = &hdev->discovery;
2506 struct inquiry_entry *e;
2508 /* Update the mgmt connected state if necessary. Be careful with
2509 * conn objects that exist but are not (yet) connected however.
2510 * Only those in BT_CONFIG or BT_CONNECTED states can be
2511 * considered connected.
2514 (conn->state == BT_CONFIG || conn->state == BT_CONNECTED) &&
2515 !test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
2516 mgmt_device_connected(hdev, conn, name, name_len);
2518 if (discov->state == DISCOVERY_STOPPED)
2521 if (discov->state == DISCOVERY_STOPPING)
2522 goto discov_complete;
2524 if (discov->state != DISCOVERY_RESOLVING)
2527 e = hci_inquiry_cache_lookup_resolve(hdev, bdaddr, NAME_PENDING);
2528 /* If the device was not found in a list of found devices names of which
2529 * are pending. there is no need to continue resolving a next name as it
2530 * will be done upon receiving another Remote Name Request Complete
2537 e->name_state = name ? NAME_KNOWN : NAME_NOT_KNOWN;
2538 mgmt_remote_name(hdev, bdaddr, ACL_LINK, 0x00, e->data.rssi,
2541 if (hci_resolve_next_name(hdev))
2545 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
2548 static void hci_cs_remote_name_req(struct hci_dev *hdev, __u8 status)
2550 struct hci_cp_remote_name_req *cp;
2551 struct hci_conn *conn;
2553 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2555 /* If successful wait for the name req complete event before
2556 * checking for the need to do authentication */
2560 cp = hci_sent_cmd_data(hdev, HCI_OP_REMOTE_NAME_REQ);
2566 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
2568 if (hci_dev_test_flag(hdev, HCI_MGMT))
2569 hci_check_pending_name(hdev, conn, &cp->bdaddr, NULL, 0);
2574 if (!hci_outgoing_auth_needed(hdev, conn))
2577 if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->flags)) {
2578 struct hci_cp_auth_requested auth_cp;
2580 set_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags);
2582 auth_cp.handle = __cpu_to_le16(conn->handle);
2583 hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED,
2584 sizeof(auth_cp), &auth_cp);
2588 hci_dev_unlock(hdev);
2591 static void hci_cs_read_remote_features(struct hci_dev *hdev, __u8 status)
2593 struct hci_cp_read_remote_features *cp;
2594 struct hci_conn *conn;
2596 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2601 cp = hci_sent_cmd_data(hdev, HCI_OP_READ_REMOTE_FEATURES);
2607 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2609 if (conn->state == BT_CONFIG) {
2610 hci_connect_cfm(conn, status);
2611 hci_conn_drop(conn);
2615 hci_dev_unlock(hdev);
2618 static void hci_cs_read_remote_ext_features(struct hci_dev *hdev, __u8 status)
2620 struct hci_cp_read_remote_ext_features *cp;
2621 struct hci_conn *conn;
2623 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2628 cp = hci_sent_cmd_data(hdev, HCI_OP_READ_REMOTE_EXT_FEATURES);
2634 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2636 if (conn->state == BT_CONFIG) {
2637 hci_connect_cfm(conn, status);
2638 hci_conn_drop(conn);
2642 hci_dev_unlock(hdev);
2645 static void hci_setup_sync_conn_status(struct hci_dev *hdev, __u16 handle,
2648 struct hci_conn *acl;
2649 struct hci_link *link;
2651 bt_dev_dbg(hdev, "handle 0x%4.4x status 0x%2.2x", handle, status);
2655 acl = hci_conn_hash_lookup_handle(hdev, handle);
2657 link = list_first_entry_or_null(&acl->link_list,
2658 struct hci_link, list);
2659 if (link && link->conn) {
2660 link->conn->state = BT_CLOSED;
2662 hci_connect_cfm(link->conn, status);
2663 hci_conn_del(link->conn);
2667 hci_dev_unlock(hdev);
2670 static void hci_cs_setup_sync_conn(struct hci_dev *hdev, __u8 status)
2672 struct hci_cp_setup_sync_conn *cp;
2674 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2679 cp = hci_sent_cmd_data(hdev, HCI_OP_SETUP_SYNC_CONN);
2683 hci_setup_sync_conn_status(hdev, __le16_to_cpu(cp->handle), status);
2686 static void hci_cs_enhanced_setup_sync_conn(struct hci_dev *hdev, __u8 status)
2688 struct hci_cp_enhanced_setup_sync_conn *cp;
2690 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2695 cp = hci_sent_cmd_data(hdev, HCI_OP_ENHANCED_SETUP_SYNC_CONN);
2699 hci_setup_sync_conn_status(hdev, __le16_to_cpu(cp->handle), status);
2702 static void hci_cs_sniff_mode(struct hci_dev *hdev, __u8 status)
2704 struct hci_cp_sniff_mode *cp;
2705 struct hci_conn *conn;
2707 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2712 cp = hci_sent_cmd_data(hdev, HCI_OP_SNIFF_MODE);
2718 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2720 clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->flags);
2722 if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags))
2723 hci_sco_setup(conn, status);
2726 hci_dev_unlock(hdev);
2729 static void hci_cs_exit_sniff_mode(struct hci_dev *hdev, __u8 status)
2731 struct hci_cp_exit_sniff_mode *cp;
2732 struct hci_conn *conn;
2734 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2739 cp = hci_sent_cmd_data(hdev, HCI_OP_EXIT_SNIFF_MODE);
2745 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2747 clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->flags);
2749 if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags))
2750 hci_sco_setup(conn, status);
2753 hci_dev_unlock(hdev);
2756 static void hci_cs_disconnect(struct hci_dev *hdev, u8 status)
2758 struct hci_cp_disconnect *cp;
2759 struct hci_conn_params *params;
2760 struct hci_conn *conn;
2763 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2765 /* Wait for HCI_EV_DISCONN_COMPLETE if status 0x00 and not suspended
2766 * otherwise cleanup the connection immediately.
2768 if (!status && !hdev->suspended)
2771 cp = hci_sent_cmd_data(hdev, HCI_OP_DISCONNECT);
2777 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2782 mgmt_disconnect_failed(hdev, &conn->dst, conn->type,
2783 conn->dst_type, status);
2785 if (conn->type == LE_LINK && conn->role == HCI_ROLE_SLAVE) {
2786 hdev->cur_adv_instance = conn->adv_instance;
2787 hci_enable_advertising(hdev);
2790 /* Inform sockets conn is gone before we delete it */
2791 hci_disconn_cfm(conn, HCI_ERROR_UNSPECIFIED);
2796 mgmt_conn = test_and_clear_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags);
2798 if (conn->type == ACL_LINK) {
2799 if (test_and_clear_bit(HCI_CONN_FLUSH_KEY, &conn->flags))
2800 hci_remove_link_key(hdev, &conn->dst);
2803 params = hci_conn_params_lookup(hdev, &conn->dst, conn->dst_type);
2805 switch (params->auto_connect) {
2806 case HCI_AUTO_CONN_LINK_LOSS:
2807 if (cp->reason != HCI_ERROR_CONNECTION_TIMEOUT)
2811 case HCI_AUTO_CONN_DIRECT:
2812 case HCI_AUTO_CONN_ALWAYS:
2813 hci_pend_le_list_del_init(params);
2814 hci_pend_le_list_add(params, &hdev->pend_le_conns);
2822 mgmt_device_disconnected(hdev, &conn->dst, conn->type, conn->dst_type,
2823 cp->reason, mgmt_conn);
2825 hci_disconn_cfm(conn, cp->reason);
2828 /* If the disconnection failed for any reason, the upper layer
2829 * does not retry to disconnect in current implementation.
2830 * Hence, we need to do some basic cleanup here and re-enable
2831 * advertising if necessary.
2835 hci_dev_unlock(hdev);
2838 static u8 ev_bdaddr_type(struct hci_dev *hdev, u8 type, bool *resolved)
2840 /* When using controller based address resolution, then the new
2841 * address types 0x02 and 0x03 are used. These types need to be
2842 * converted back into either public address or random address type
2845 case ADDR_LE_DEV_PUBLIC_RESOLVED:
2848 return ADDR_LE_DEV_PUBLIC;
2849 case ADDR_LE_DEV_RANDOM_RESOLVED:
2852 return ADDR_LE_DEV_RANDOM;
2860 static void cs_le_create_conn(struct hci_dev *hdev, bdaddr_t *peer_addr,
2861 u8 peer_addr_type, u8 own_address_type,
2864 struct hci_conn *conn;
2866 conn = hci_conn_hash_lookup_le(hdev, peer_addr,
2871 own_address_type = ev_bdaddr_type(hdev, own_address_type, NULL);
2873 /* Store the initiator and responder address information which
2874 * is needed for SMP. These values will not change during the
2875 * lifetime of the connection.
2877 conn->init_addr_type = own_address_type;
2878 if (own_address_type == ADDR_LE_DEV_RANDOM)
2879 bacpy(&conn->init_addr, &hdev->random_addr);
2881 bacpy(&conn->init_addr, &hdev->bdaddr);
2883 conn->resp_addr_type = peer_addr_type;
2884 bacpy(&conn->resp_addr, peer_addr);
2887 static void hci_cs_le_create_conn(struct hci_dev *hdev, u8 status)
2889 struct hci_cp_le_create_conn *cp;
2891 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2893 /* All connection failure handling is taken care of by the
2894 * hci_conn_failed function which is triggered by the HCI
2895 * request completion callbacks used for connecting.
2900 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_CREATE_CONN);
2906 cs_le_create_conn(hdev, &cp->peer_addr, cp->peer_addr_type,
2907 cp->own_address_type, cp->filter_policy);
2909 hci_dev_unlock(hdev);
2912 static void hci_cs_le_ext_create_conn(struct hci_dev *hdev, u8 status)
2914 struct hci_cp_le_ext_create_conn *cp;
2916 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2918 /* All connection failure handling is taken care of by the
2919 * hci_conn_failed function which is triggered by the HCI
2920 * request completion callbacks used for connecting.
2925 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_EXT_CREATE_CONN);
2931 cs_le_create_conn(hdev, &cp->peer_addr, cp->peer_addr_type,
2932 cp->own_addr_type, cp->filter_policy);
2934 hci_dev_unlock(hdev);
2937 static void hci_cs_le_read_remote_features(struct hci_dev *hdev, u8 status)
2939 struct hci_cp_le_read_remote_features *cp;
2940 struct hci_conn *conn;
2942 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2947 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_READ_REMOTE_FEATURES);
2953 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2955 if (conn->state == BT_CONFIG) {
2956 hci_connect_cfm(conn, status);
2957 hci_conn_drop(conn);
2961 hci_dev_unlock(hdev);
2964 static void hci_cs_le_start_enc(struct hci_dev *hdev, u8 status)
2966 struct hci_cp_le_start_enc *cp;
2967 struct hci_conn *conn;
2969 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2976 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_START_ENC);
2980 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2984 if (conn->state != BT_CONNECTED)
2987 hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE);
2988 hci_conn_drop(conn);
2991 hci_dev_unlock(hdev);
2994 static void hci_cs_switch_role(struct hci_dev *hdev, u8 status)
2996 struct hci_cp_switch_role *cp;
2997 struct hci_conn *conn;
2999 BT_DBG("%s status 0x%2.2x", hdev->name, status);
3004 cp = hci_sent_cmd_data(hdev, HCI_OP_SWITCH_ROLE);
3010 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
3012 clear_bit(HCI_CONN_RSWITCH_PEND, &conn->flags);
3014 hci_dev_unlock(hdev);
3017 static void hci_inquiry_complete_evt(struct hci_dev *hdev, void *data,
3018 struct sk_buff *skb)
3020 struct hci_ev_status *ev = data;
3021 struct discovery_state *discov = &hdev->discovery;
3022 struct inquiry_entry *e;
3024 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
3026 hci_conn_check_pending(hdev);
3028 if (!test_and_clear_bit(HCI_INQUIRY, &hdev->flags))
3031 smp_mb__after_atomic(); /* wake_up_bit advises about this barrier */
3032 wake_up_bit(&hdev->flags, HCI_INQUIRY);
3034 if (!hci_dev_test_flag(hdev, HCI_MGMT))
3039 if (discov->state != DISCOVERY_FINDING)
3042 if (list_empty(&discov->resolve)) {
3043 /* When BR/EDR inquiry is active and no LE scanning is in
3044 * progress, then change discovery state to indicate completion.
3046 * When running LE scanning and BR/EDR inquiry simultaneously
3047 * and the LE scan already finished, then change the discovery
3048 * state to indicate completion.
3050 if (!hci_dev_test_flag(hdev, HCI_LE_SCAN) ||
3051 !test_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks))
3052 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
3056 e = hci_inquiry_cache_lookup_resolve(hdev, BDADDR_ANY, NAME_NEEDED);
3057 if (e && hci_resolve_name(hdev, e) == 0) {
3058 e->name_state = NAME_PENDING;
3059 hci_discovery_set_state(hdev, DISCOVERY_RESOLVING);
3060 discov->name_resolve_timeout = jiffies + NAME_RESOLVE_DURATION;
3062 /* When BR/EDR inquiry is active and no LE scanning is in
3063 * progress, then change discovery state to indicate completion.
3065 * When running LE scanning and BR/EDR inquiry simultaneously
3066 * and the LE scan already finished, then change the discovery
3067 * state to indicate completion.
3069 if (!hci_dev_test_flag(hdev, HCI_LE_SCAN) ||
3070 !test_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks))
3071 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
3075 hci_dev_unlock(hdev);
3078 static void hci_inquiry_result_evt(struct hci_dev *hdev, void *edata,
3079 struct sk_buff *skb)
3081 struct hci_ev_inquiry_result *ev = edata;
3082 struct inquiry_data data;
3085 if (!hci_ev_skb_pull(hdev, skb, HCI_EV_INQUIRY_RESULT,
3086 flex_array_size(ev, info, ev->num)))
3089 bt_dev_dbg(hdev, "num %d", ev->num);
3094 if (hci_dev_test_flag(hdev, HCI_PERIODIC_INQ))
3099 for (i = 0; i < ev->num; i++) {
3100 struct inquiry_info *info = &ev->info[i];
3103 bacpy(&data.bdaddr, &info->bdaddr);
3104 data.pscan_rep_mode = info->pscan_rep_mode;
3105 data.pscan_period_mode = info->pscan_period_mode;
3106 data.pscan_mode = info->pscan_mode;
3107 memcpy(data.dev_class, info->dev_class, 3);
3108 data.clock_offset = info->clock_offset;
3109 data.rssi = HCI_RSSI_INVALID;
3110 data.ssp_mode = 0x00;
3112 flags = hci_inquiry_cache_update(hdev, &data, false);
3114 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
3115 info->dev_class, HCI_RSSI_INVALID,
3116 flags, NULL, 0, NULL, 0, 0);
3119 hci_dev_unlock(hdev);
3122 static void hci_conn_complete_evt(struct hci_dev *hdev, void *data,
3123 struct sk_buff *skb)
3125 struct hci_ev_conn_complete *ev = data;
3126 struct hci_conn *conn;
3127 u8 status = ev->status;
3129 bt_dev_dbg(hdev, "status 0x%2.2x", status);
3133 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr);
3135 /* In case of error status and there is no connection pending
3136 * just unlock as there is nothing to cleanup.
3141 /* Connection may not exist if auto-connected. Check the bredr
3142 * allowlist to see if this device is allowed to auto connect.
3143 * If link is an ACL type, create a connection class
3146 * Auto-connect will only occur if the event filter is
3147 * programmed with a given address. Right now, event filter is
3148 * only used during suspend.
3150 if (ev->link_type == ACL_LINK &&
3151 hci_bdaddr_list_lookup_with_flags(&hdev->accept_list,
3154 conn = hci_conn_add(hdev, ev->link_type, &ev->bdaddr,
3157 bt_dev_err(hdev, "no memory for new conn");
3161 if (ev->link_type != SCO_LINK)
3164 conn = hci_conn_hash_lookup_ba(hdev, ESCO_LINK,
3169 conn->type = SCO_LINK;
3173 /* The HCI_Connection_Complete event is only sent once per connection.
3174 * Processing it more than once per connection can corrupt kernel memory.
3176 * As the connection handle is set here for the first time, it indicates
3177 * whether the connection is already set up.
3179 if (!HCI_CONN_HANDLE_UNSET(conn->handle)) {
3180 bt_dev_err(hdev, "Ignoring HCI_Connection_Complete for existing connection");
3185 status = hci_conn_set_handle(conn, __le16_to_cpu(ev->handle));
3189 if (conn->type == ACL_LINK) {
3190 conn->state = BT_CONFIG;
3191 hci_conn_hold(conn);
3193 if (!conn->out && !hci_conn_ssp_enabled(conn) &&
3194 !hci_find_link_key(hdev, &ev->bdaddr))
3195 conn->disc_timeout = HCI_PAIRING_TIMEOUT;
3197 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
3199 conn->state = BT_CONNECTED;
3201 hci_debugfs_create_conn(conn);
3202 hci_conn_add_sysfs(conn);
3204 if (test_bit(HCI_AUTH, &hdev->flags))
3205 set_bit(HCI_CONN_AUTH, &conn->flags);
3207 if (test_bit(HCI_ENCRYPT, &hdev->flags))
3208 set_bit(HCI_CONN_ENCRYPT, &conn->flags);
3210 /* Get remote features */
3211 if (conn->type == ACL_LINK) {
3212 struct hci_cp_read_remote_features cp;
3213 cp.handle = ev->handle;
3214 hci_send_cmd(hdev, HCI_OP_READ_REMOTE_FEATURES,
3217 hci_update_scan(hdev);
3220 /* Set packet type for incoming connection */
3221 if (!conn->out && hdev->hci_ver < BLUETOOTH_VER_2_0) {
3222 struct hci_cp_change_conn_ptype cp;
3223 cp.handle = ev->handle;
3224 cp.pkt_type = cpu_to_le16(conn->pkt_type);
3225 hci_send_cmd(hdev, HCI_OP_CHANGE_CONN_PTYPE, sizeof(cp),
3230 if (conn->type == ACL_LINK)
3231 hci_sco_setup(conn, ev->status);
3235 hci_conn_failed(conn, status);
3236 } else if (ev->link_type == SCO_LINK) {
3237 switch (conn->setting & SCO_AIRMODE_MASK) {
3238 case SCO_AIRMODE_CVSD:
3240 hdev->notify(hdev, HCI_NOTIFY_ENABLE_SCO_CVSD);
3244 hci_connect_cfm(conn, status);
3248 hci_dev_unlock(hdev);
3250 hci_conn_check_pending(hdev);
3253 static void hci_reject_conn(struct hci_dev *hdev, bdaddr_t *bdaddr)
3255 struct hci_cp_reject_conn_req cp;
3257 bacpy(&cp.bdaddr, bdaddr);
3258 cp.reason = HCI_ERROR_REJ_BAD_ADDR;
3259 hci_send_cmd(hdev, HCI_OP_REJECT_CONN_REQ, sizeof(cp), &cp);
3262 static void hci_conn_request_evt(struct hci_dev *hdev, void *data,
3263 struct sk_buff *skb)
3265 struct hci_ev_conn_request *ev = data;
3266 int mask = hdev->link_mode;
3267 struct inquiry_entry *ie;
3268 struct hci_conn *conn;
3271 bt_dev_dbg(hdev, "bdaddr %pMR type 0x%x", &ev->bdaddr, ev->link_type);
3273 /* Reject incoming connection from device with same BD ADDR against
3276 if (!bacmp(&hdev->bdaddr, &ev->bdaddr))
3278 bt_dev_dbg(hdev, "Reject connection with same BD_ADDR %pMR\n",
3280 hci_reject_conn(hdev, &ev->bdaddr);
3284 mask |= hci_proto_connect_ind(hdev, &ev->bdaddr, ev->link_type,
3287 if (!(mask & HCI_LM_ACCEPT)) {
3288 hci_reject_conn(hdev, &ev->bdaddr);
3294 if (hci_bdaddr_list_lookup(&hdev->reject_list, &ev->bdaddr,
3296 hci_reject_conn(hdev, &ev->bdaddr);
3300 /* Require HCI_CONNECTABLE or an accept list entry to accept the
3301 * connection. These features are only touched through mgmt so
3302 * only do the checks if HCI_MGMT is set.
3304 if (hci_dev_test_flag(hdev, HCI_MGMT) &&
3305 !hci_dev_test_flag(hdev, HCI_CONNECTABLE) &&
3306 !hci_bdaddr_list_lookup_with_flags(&hdev->accept_list, &ev->bdaddr,
3308 hci_reject_conn(hdev, &ev->bdaddr);
3312 /* Connection accepted */
3314 ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
3316 memcpy(ie->data.dev_class, ev->dev_class, 3);
3318 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type,
3321 conn = hci_conn_add(hdev, ev->link_type, &ev->bdaddr,
3324 bt_dev_err(hdev, "no memory for new connection");
3329 memcpy(conn->dev_class, ev->dev_class, 3);
3331 hci_dev_unlock(hdev);
3333 if (ev->link_type == ACL_LINK ||
3334 (!(flags & HCI_PROTO_DEFER) && !lmp_esco_capable(hdev))) {
3335 struct hci_cp_accept_conn_req cp;
3336 conn->state = BT_CONNECT;
3338 bacpy(&cp.bdaddr, &ev->bdaddr);
3340 if (lmp_rswitch_capable(hdev) && (mask & HCI_LM_MASTER))
3341 cp.role = 0x00; /* Become central */
3343 cp.role = 0x01; /* Remain peripheral */
3345 hci_send_cmd(hdev, HCI_OP_ACCEPT_CONN_REQ, sizeof(cp), &cp);
3346 } else if (!(flags & HCI_PROTO_DEFER)) {
3347 struct hci_cp_accept_sync_conn_req cp;
3348 conn->state = BT_CONNECT;
3350 bacpy(&cp.bdaddr, &ev->bdaddr);
3351 cp.pkt_type = cpu_to_le16(conn->pkt_type);
3353 cp.tx_bandwidth = cpu_to_le32(0x00001f40);
3354 cp.rx_bandwidth = cpu_to_le32(0x00001f40);
3355 cp.max_latency = cpu_to_le16(0xffff);
3356 cp.content_format = cpu_to_le16(hdev->voice_setting);
3357 cp.retrans_effort = 0xff;
3359 hci_send_cmd(hdev, HCI_OP_ACCEPT_SYNC_CONN_REQ, sizeof(cp),
3362 conn->state = BT_CONNECT2;
3363 hci_connect_cfm(conn, 0);
3368 hci_dev_unlock(hdev);
3371 static u8 hci_to_mgmt_reason(u8 err)
3374 case HCI_ERROR_CONNECTION_TIMEOUT:
3375 return MGMT_DEV_DISCONN_TIMEOUT;
3376 case HCI_ERROR_REMOTE_USER_TERM:
3377 case HCI_ERROR_REMOTE_LOW_RESOURCES:
3378 case HCI_ERROR_REMOTE_POWER_OFF:
3379 return MGMT_DEV_DISCONN_REMOTE;
3380 case HCI_ERROR_LOCAL_HOST_TERM:
3381 return MGMT_DEV_DISCONN_LOCAL_HOST;
3383 return MGMT_DEV_DISCONN_UNKNOWN;
3387 static void hci_disconn_complete_evt(struct hci_dev *hdev, void *data,
3388 struct sk_buff *skb)
3390 struct hci_ev_disconn_complete *ev = data;
3392 struct hci_conn_params *params;
3393 struct hci_conn *conn;
3394 bool mgmt_connected;
3396 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
3400 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3405 mgmt_disconnect_failed(hdev, &conn->dst, conn->type,
3406 conn->dst_type, ev->status);
3410 conn->state = BT_CLOSED;
3412 mgmt_connected = test_and_clear_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags);
3414 if (test_bit(HCI_CONN_AUTH_FAILURE, &conn->flags))
3415 reason = MGMT_DEV_DISCONN_AUTH_FAILURE;
3417 reason = hci_to_mgmt_reason(ev->reason);
3419 mgmt_device_disconnected(hdev, &conn->dst, conn->type, conn->dst_type,
3420 reason, mgmt_connected);
3422 if (conn->type == ACL_LINK) {
3423 if (test_and_clear_bit(HCI_CONN_FLUSH_KEY, &conn->flags))
3424 hci_remove_link_key(hdev, &conn->dst);
3426 hci_update_scan(hdev);
3429 params = hci_conn_params_lookup(hdev, &conn->dst, conn->dst_type);
3431 switch (params->auto_connect) {
3432 case HCI_AUTO_CONN_LINK_LOSS:
3433 if (ev->reason != HCI_ERROR_CONNECTION_TIMEOUT)
3437 case HCI_AUTO_CONN_DIRECT:
3438 case HCI_AUTO_CONN_ALWAYS:
3439 hci_pend_le_list_del_init(params);
3440 hci_pend_le_list_add(params, &hdev->pend_le_conns);
3441 hci_update_passive_scan(hdev);
3449 hci_disconn_cfm(conn, ev->reason);
3451 /* Re-enable advertising if necessary, since it might
3452 * have been disabled by the connection. From the
3453 * HCI_LE_Set_Advertise_Enable command description in
3454 * the core specification (v4.0):
3455 * "The Controller shall continue advertising until the Host
3456 * issues an LE_Set_Advertise_Enable command with
3457 * Advertising_Enable set to 0x00 (Advertising is disabled)
3458 * or until a connection is created or until the Advertising
3459 * is timed out due to Directed Advertising."
3461 if (conn->type == LE_LINK && conn->role == HCI_ROLE_SLAVE) {
3462 hdev->cur_adv_instance = conn->adv_instance;
3463 hci_enable_advertising(hdev);
3469 hci_dev_unlock(hdev);
3472 static void hci_auth_complete_evt(struct hci_dev *hdev, void *data,
3473 struct sk_buff *skb)
3475 struct hci_ev_auth_complete *ev = data;
3476 struct hci_conn *conn;
3478 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
3482 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3487 clear_bit(HCI_CONN_AUTH_FAILURE, &conn->flags);
3489 if (!hci_conn_ssp_enabled(conn) &&
3490 test_bit(HCI_CONN_REAUTH_PEND, &conn->flags)) {
3491 bt_dev_info(hdev, "re-auth of legacy device is not possible.");
3493 set_bit(HCI_CONN_AUTH, &conn->flags);
3494 conn->sec_level = conn->pending_sec_level;
3497 if (ev->status == HCI_ERROR_PIN_OR_KEY_MISSING)
3498 set_bit(HCI_CONN_AUTH_FAILURE, &conn->flags);
3500 mgmt_auth_failed(conn, ev->status);
3503 clear_bit(HCI_CONN_AUTH_PEND, &conn->flags);
3504 clear_bit(HCI_CONN_REAUTH_PEND, &conn->flags);
3506 if (conn->state == BT_CONFIG) {
3507 if (!ev->status && hci_conn_ssp_enabled(conn)) {
3508 struct hci_cp_set_conn_encrypt cp;
3509 cp.handle = ev->handle;
3511 hci_send_cmd(hdev, HCI_OP_SET_CONN_ENCRYPT, sizeof(cp),
3514 conn->state = BT_CONNECTED;
3515 hci_connect_cfm(conn, ev->status);
3516 hci_conn_drop(conn);
3519 hci_auth_cfm(conn, ev->status);
3521 hci_conn_hold(conn);
3522 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
3523 hci_conn_drop(conn);
3526 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) {
3528 struct hci_cp_set_conn_encrypt cp;
3529 cp.handle = ev->handle;
3531 hci_send_cmd(hdev, HCI_OP_SET_CONN_ENCRYPT, sizeof(cp),
3534 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
3535 hci_encrypt_cfm(conn, ev->status);
3540 hci_dev_unlock(hdev);
3543 static void hci_remote_name_evt(struct hci_dev *hdev, void *data,
3544 struct sk_buff *skb)
3546 struct hci_ev_remote_name *ev = data;
3547 struct hci_conn *conn;
3549 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
3551 hci_conn_check_pending(hdev);
3555 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
3557 if (!hci_dev_test_flag(hdev, HCI_MGMT))
3560 if (ev->status == 0)
3561 hci_check_pending_name(hdev, conn, &ev->bdaddr, ev->name,
3562 strnlen(ev->name, HCI_MAX_NAME_LENGTH));
3564 hci_check_pending_name(hdev, conn, &ev->bdaddr, NULL, 0);
3570 if (!hci_outgoing_auth_needed(hdev, conn))
3573 if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->flags)) {
3574 struct hci_cp_auth_requested cp;
3576 set_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags);
3578 cp.handle = __cpu_to_le16(conn->handle);
3579 hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED, sizeof(cp), &cp);
3583 hci_dev_unlock(hdev);
3586 static void hci_encrypt_change_evt(struct hci_dev *hdev, void *data,
3587 struct sk_buff *skb)
3589 struct hci_ev_encrypt_change *ev = data;
3590 struct hci_conn *conn;
3592 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
3596 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3602 /* Encryption implies authentication */
3603 set_bit(HCI_CONN_AUTH, &conn->flags);
3604 set_bit(HCI_CONN_ENCRYPT, &conn->flags);
3605 conn->sec_level = conn->pending_sec_level;
3607 /* P-256 authentication key implies FIPS */
3608 if (conn->key_type == HCI_LK_AUTH_COMBINATION_P256)
3609 set_bit(HCI_CONN_FIPS, &conn->flags);
3611 if ((conn->type == ACL_LINK && ev->encrypt == 0x02) ||
3612 conn->type == LE_LINK)
3613 set_bit(HCI_CONN_AES_CCM, &conn->flags);
3615 clear_bit(HCI_CONN_ENCRYPT, &conn->flags);
3616 clear_bit(HCI_CONN_AES_CCM, &conn->flags);
3620 /* We should disregard the current RPA and generate a new one
3621 * whenever the encryption procedure fails.
3623 if (ev->status && conn->type == LE_LINK) {
3624 hci_dev_set_flag(hdev, HCI_RPA_EXPIRED);
3625 hci_adv_instances_set_rpa_expired(hdev, true);
3628 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
3630 /* Check link security requirements are met */
3631 if (!hci_conn_check_link_mode(conn))
3632 ev->status = HCI_ERROR_AUTH_FAILURE;
3634 if (ev->status && conn->state == BT_CONNECTED) {
3635 if (ev->status == HCI_ERROR_PIN_OR_KEY_MISSING)
3636 set_bit(HCI_CONN_AUTH_FAILURE, &conn->flags);
3638 /* Notify upper layers so they can cleanup before
3641 hci_encrypt_cfm(conn, ev->status);
3642 hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE);
3643 hci_conn_drop(conn);
3647 /* Try reading the encryption key size for encrypted ACL links */
3648 if (!ev->status && ev->encrypt && conn->type == ACL_LINK) {
3649 struct hci_cp_read_enc_key_size cp;
3651 /* Only send HCI_Read_Encryption_Key_Size if the
3652 * controller really supports it. If it doesn't, assume
3653 * the default size (16).
3655 if (!(hdev->commands[20] & 0x10)) {
3656 conn->enc_key_size = HCI_LINK_KEY_SIZE;
3660 cp.handle = cpu_to_le16(conn->handle);
3661 if (hci_send_cmd(hdev, HCI_OP_READ_ENC_KEY_SIZE,
3663 bt_dev_err(hdev, "sending read key size failed");
3664 conn->enc_key_size = HCI_LINK_KEY_SIZE;
3671 /* Set the default Authenticated Payload Timeout after
3672 * an LE Link is established. As per Core Spec v5.0, Vol 2, Part B
3673 * Section 3.3, the HCI command WRITE_AUTH_PAYLOAD_TIMEOUT should be
3674 * sent when the link is active and Encryption is enabled, the conn
3675 * type can be either LE or ACL and controller must support LMP Ping.
3676 * Ensure for AES-CCM encryption as well.
3678 if (test_bit(HCI_CONN_ENCRYPT, &conn->flags) &&
3679 test_bit(HCI_CONN_AES_CCM, &conn->flags) &&
3680 ((conn->type == ACL_LINK && lmp_ping_capable(hdev)) ||
3681 (conn->type == LE_LINK && (hdev->le_features[0] & HCI_LE_PING)))) {
3682 struct hci_cp_write_auth_payload_to cp;
3684 cp.handle = cpu_to_le16(conn->handle);
3685 cp.timeout = cpu_to_le16(hdev->auth_payload_timeout);
3686 if (hci_send_cmd(conn->hdev, HCI_OP_WRITE_AUTH_PAYLOAD_TO,
3688 bt_dev_err(hdev, "write auth payload timeout failed");
3696 hci_encrypt_cfm(conn, ev->status);
3699 hci_dev_unlock(hdev);
3702 static void hci_change_link_key_complete_evt(struct hci_dev *hdev, void *data,
3703 struct sk_buff *skb)
3705 struct hci_ev_change_link_key_complete *ev = data;
3706 struct hci_conn *conn;
3708 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
3712 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3715 set_bit(HCI_CONN_SECURE, &conn->flags);
3717 clear_bit(HCI_CONN_AUTH_PEND, &conn->flags);
3719 hci_key_change_cfm(conn, ev->status);
3722 hci_dev_unlock(hdev);
3725 static void hci_remote_features_evt(struct hci_dev *hdev, void *data,
3726 struct sk_buff *skb)
3728 struct hci_ev_remote_features *ev = data;
3729 struct hci_conn *conn;
3731 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
3735 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3740 memcpy(conn->features[0], ev->features, 8);
3742 if (conn->state != BT_CONFIG)
3745 if (!ev->status && lmp_ext_feat_capable(hdev) &&
3746 lmp_ext_feat_capable(conn)) {
3747 struct hci_cp_read_remote_ext_features cp;
3748 cp.handle = ev->handle;
3750 hci_send_cmd(hdev, HCI_OP_READ_REMOTE_EXT_FEATURES,
3755 if (!ev->status && !test_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags)) {
3756 struct hci_cp_remote_name_req cp;
3757 memset(&cp, 0, sizeof(cp));
3758 bacpy(&cp.bdaddr, &conn->dst);
3759 cp.pscan_rep_mode = 0x02;
3760 hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp);
3761 } else if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
3762 mgmt_device_connected(hdev, conn, NULL, 0);
3764 if (!hci_outgoing_auth_needed(hdev, conn)) {
3765 conn->state = BT_CONNECTED;
3766 hci_connect_cfm(conn, ev->status);
3767 hci_conn_drop(conn);
3771 hci_dev_unlock(hdev);
3774 static inline void handle_cmd_cnt_and_timer(struct hci_dev *hdev, u8 ncmd)
3776 cancel_delayed_work(&hdev->cmd_timer);
3779 if (!test_bit(HCI_RESET, &hdev->flags)) {
3781 cancel_delayed_work(&hdev->ncmd_timer);
3782 atomic_set(&hdev->cmd_cnt, 1);
3784 if (!hci_dev_test_flag(hdev, HCI_CMD_DRAIN_WORKQUEUE))
3785 queue_delayed_work(hdev->workqueue, &hdev->ncmd_timer,
3792 static u8 hci_cc_le_read_buffer_size_v2(struct hci_dev *hdev, void *data,
3793 struct sk_buff *skb)
3795 struct hci_rp_le_read_buffer_size_v2 *rp = data;
3797 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
3802 hdev->le_mtu = __le16_to_cpu(rp->acl_mtu);
3803 hdev->le_pkts = rp->acl_max_pkt;
3804 hdev->iso_mtu = __le16_to_cpu(rp->iso_mtu);
3805 hdev->iso_pkts = rp->iso_max_pkt;
3807 hdev->le_cnt = hdev->le_pkts;
3808 hdev->iso_cnt = hdev->iso_pkts;
3810 BT_DBG("%s acl mtu %d:%d iso mtu %d:%d", hdev->name, hdev->acl_mtu,
3811 hdev->acl_pkts, hdev->iso_mtu, hdev->iso_pkts);
3816 static void hci_unbound_cis_failed(struct hci_dev *hdev, u8 cig, u8 status)
3818 struct hci_conn *conn, *tmp;
3820 lockdep_assert_held(&hdev->lock);
3822 list_for_each_entry_safe(conn, tmp, &hdev->conn_hash.list, list) {
3823 if (conn->type != ISO_LINK || !bacmp(&conn->dst, BDADDR_ANY) ||
3824 conn->state == BT_OPEN || conn->iso_qos.ucast.cig != cig)
3827 if (HCI_CONN_HANDLE_UNSET(conn->handle))
3828 hci_conn_failed(conn, status);
3832 static u8 hci_cc_le_set_cig_params(struct hci_dev *hdev, void *data,
3833 struct sk_buff *skb)
3835 struct hci_rp_le_set_cig_params *rp = data;
3836 struct hci_cp_le_set_cig_params *cp;
3837 struct hci_conn *conn;
3838 u8 status = rp->status;
3839 bool pending = false;
3842 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
3844 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_CIG_PARAMS);
3845 if (!rp->status && (!cp || rp->num_handles != cp->num_cis ||
3846 rp->cig_id != cp->cig_id)) {
3847 bt_dev_err(hdev, "unexpected Set CIG Parameters response data");
3848 status = HCI_ERROR_UNSPECIFIED;
3853 /* BLUETOOTH CORE SPECIFICATION Version 5.4 | Vol 4, Part E page 2554
3855 * If the Status return parameter is non-zero, then the state of the CIG
3856 * and its CIS configurations shall not be changed by the command. If
3857 * the CIG did not already exist, it shall not be created.
3860 /* Keep current configuration, fail only the unbound CIS */
3861 hci_unbound_cis_failed(hdev, rp->cig_id, status);
3865 /* BLUETOOTH CORE SPECIFICATION Version 5.3 | Vol 4, Part E page 2553
3867 * If the Status return parameter is zero, then the Controller shall
3868 * set the Connection_Handle arrayed return parameter to the connection
3869 * handle(s) corresponding to the CIS configurations specified in
3870 * the CIS_IDs command parameter, in the same order.
3872 for (i = 0; i < rp->num_handles; ++i) {
3873 conn = hci_conn_hash_lookup_cis(hdev, NULL, 0, rp->cig_id,
3875 if (!conn || !bacmp(&conn->dst, BDADDR_ANY))
3878 if (conn->state != BT_BOUND && conn->state != BT_CONNECT)
3881 if (hci_conn_set_handle(conn, __le16_to_cpu(rp->handle[i])))
3884 if (conn->state == BT_CONNECT)
3890 hci_le_create_cis_pending(hdev);
3892 hci_dev_unlock(hdev);
3897 static u8 hci_cc_le_setup_iso_path(struct hci_dev *hdev, void *data,
3898 struct sk_buff *skb)
3900 struct hci_rp_le_setup_iso_path *rp = data;
3901 struct hci_cp_le_setup_iso_path *cp;
3902 struct hci_conn *conn;
3904 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
3906 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SETUP_ISO_PATH);
3912 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
3917 hci_connect_cfm(conn, rp->status);
3922 switch (cp->direction) {
3923 /* Input (Host to Controller) */
3925 /* Only confirm connection if output only */
3926 if (conn->iso_qos.ucast.out.sdu && !conn->iso_qos.ucast.in.sdu)
3927 hci_connect_cfm(conn, rp->status);
3929 /* Output (Controller to Host) */
3931 /* Confirm connection since conn->iso_qos is always configured
3934 hci_connect_cfm(conn, rp->status);
3939 hci_dev_unlock(hdev);
3943 static void hci_cs_le_create_big(struct hci_dev *hdev, u8 status)
3945 bt_dev_dbg(hdev, "status 0x%2.2x", status);
3948 static u8 hci_cc_set_per_adv_param(struct hci_dev *hdev, void *data,
3949 struct sk_buff *skb)
3951 struct hci_ev_status *rp = data;
3952 struct hci_cp_le_set_per_adv_params *cp;
3954 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
3959 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_PER_ADV_PARAMS);
3963 /* TODO: set the conn state */
3967 static u8 hci_cc_le_set_per_adv_enable(struct hci_dev *hdev, void *data,
3968 struct sk_buff *skb)
3970 struct hci_ev_status *rp = data;
3971 struct hci_cp_le_set_per_adv_enable *cp;
3972 struct adv_info *adv = NULL, *n;
3975 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
3980 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_PER_ADV_ENABLE);
3986 adv = hci_find_adv_instance(hdev, cp->handle);
3989 hci_dev_set_flag(hdev, HCI_LE_PER_ADV);
3992 adv->enabled = true;
3994 /* If just one instance was disabled check if there are
3995 * any other instance enabled before clearing HCI_LE_PER_ADV.
3996 * The current periodic adv instance will be marked as
3997 * disabled once extended advertising is also disabled.
3999 list_for_each_entry_safe(adv, n, &hdev->adv_instances,
4001 if (adv->periodic && adv->enabled)
4005 if (per_adv_cnt > 1)
4008 hci_dev_clear_flag(hdev, HCI_LE_PER_ADV);
4012 hci_dev_unlock(hdev);
4017 #define HCI_CC_VL(_op, _func, _min, _max) \
4025 #define HCI_CC(_op, _func, _len) \
4026 HCI_CC_VL(_op, _func, _len, _len)
4028 #define HCI_CC_STATUS(_op, _func) \
4029 HCI_CC(_op, _func, sizeof(struct hci_ev_status))
4031 static const struct hci_cc {
4033 u8 (*func)(struct hci_dev *hdev, void *data, struct sk_buff *skb);
4036 } hci_cc_table[] = {
4037 HCI_CC_STATUS(HCI_OP_INQUIRY_CANCEL, hci_cc_inquiry_cancel),
4038 HCI_CC_STATUS(HCI_OP_PERIODIC_INQ, hci_cc_periodic_inq),
4039 HCI_CC_STATUS(HCI_OP_EXIT_PERIODIC_INQ, hci_cc_exit_periodic_inq),
4040 HCI_CC_STATUS(HCI_OP_REMOTE_NAME_REQ_CANCEL,
4041 hci_cc_remote_name_req_cancel),
4042 HCI_CC(HCI_OP_ROLE_DISCOVERY, hci_cc_role_discovery,
4043 sizeof(struct hci_rp_role_discovery)),
4044 HCI_CC(HCI_OP_READ_LINK_POLICY, hci_cc_read_link_policy,
4045 sizeof(struct hci_rp_read_link_policy)),
4046 HCI_CC(HCI_OP_WRITE_LINK_POLICY, hci_cc_write_link_policy,
4047 sizeof(struct hci_rp_write_link_policy)),
4048 HCI_CC(HCI_OP_READ_DEF_LINK_POLICY, hci_cc_read_def_link_policy,
4049 sizeof(struct hci_rp_read_def_link_policy)),
4050 HCI_CC_STATUS(HCI_OP_WRITE_DEF_LINK_POLICY,
4051 hci_cc_write_def_link_policy),
4052 HCI_CC_STATUS(HCI_OP_RESET, hci_cc_reset),
4053 HCI_CC(HCI_OP_READ_STORED_LINK_KEY, hci_cc_read_stored_link_key,
4054 sizeof(struct hci_rp_read_stored_link_key)),
4055 HCI_CC(HCI_OP_DELETE_STORED_LINK_KEY, hci_cc_delete_stored_link_key,
4056 sizeof(struct hci_rp_delete_stored_link_key)),
4057 HCI_CC_STATUS(HCI_OP_WRITE_LOCAL_NAME, hci_cc_write_local_name),
4058 HCI_CC(HCI_OP_READ_LOCAL_NAME, hci_cc_read_local_name,
4059 sizeof(struct hci_rp_read_local_name)),
4060 HCI_CC_STATUS(HCI_OP_WRITE_AUTH_ENABLE, hci_cc_write_auth_enable),
4061 HCI_CC_STATUS(HCI_OP_WRITE_ENCRYPT_MODE, hci_cc_write_encrypt_mode),
4062 HCI_CC_STATUS(HCI_OP_WRITE_SCAN_ENABLE, hci_cc_write_scan_enable),
4063 HCI_CC_STATUS(HCI_OP_SET_EVENT_FLT, hci_cc_set_event_filter),
4064 HCI_CC(HCI_OP_READ_CLASS_OF_DEV, hci_cc_read_class_of_dev,
4065 sizeof(struct hci_rp_read_class_of_dev)),
4066 HCI_CC_STATUS(HCI_OP_WRITE_CLASS_OF_DEV, hci_cc_write_class_of_dev),
4067 HCI_CC(HCI_OP_READ_VOICE_SETTING, hci_cc_read_voice_setting,
4068 sizeof(struct hci_rp_read_voice_setting)),
4069 HCI_CC_STATUS(HCI_OP_WRITE_VOICE_SETTING, hci_cc_write_voice_setting),
4070 HCI_CC(HCI_OP_READ_NUM_SUPPORTED_IAC, hci_cc_read_num_supported_iac,
4071 sizeof(struct hci_rp_read_num_supported_iac)),
4072 HCI_CC_STATUS(HCI_OP_WRITE_SSP_MODE, hci_cc_write_ssp_mode),
4073 HCI_CC_STATUS(HCI_OP_WRITE_SC_SUPPORT, hci_cc_write_sc_support),
4074 HCI_CC(HCI_OP_READ_AUTH_PAYLOAD_TO, hci_cc_read_auth_payload_timeout,
4075 sizeof(struct hci_rp_read_auth_payload_to)),
4076 HCI_CC(HCI_OP_WRITE_AUTH_PAYLOAD_TO, hci_cc_write_auth_payload_timeout,
4077 sizeof(struct hci_rp_write_auth_payload_to)),
4078 HCI_CC(HCI_OP_READ_LOCAL_VERSION, hci_cc_read_local_version,
4079 sizeof(struct hci_rp_read_local_version)),
4080 HCI_CC(HCI_OP_READ_LOCAL_COMMANDS, hci_cc_read_local_commands,
4081 sizeof(struct hci_rp_read_local_commands)),
4082 HCI_CC(HCI_OP_READ_LOCAL_FEATURES, hci_cc_read_local_features,
4083 sizeof(struct hci_rp_read_local_features)),
4084 HCI_CC(HCI_OP_READ_LOCAL_EXT_FEATURES, hci_cc_read_local_ext_features,
4085 sizeof(struct hci_rp_read_local_ext_features)),
4086 HCI_CC(HCI_OP_READ_BUFFER_SIZE, hci_cc_read_buffer_size,
4087 sizeof(struct hci_rp_read_buffer_size)),
4088 HCI_CC(HCI_OP_READ_BD_ADDR, hci_cc_read_bd_addr,
4089 sizeof(struct hci_rp_read_bd_addr)),
4090 HCI_CC(HCI_OP_READ_LOCAL_PAIRING_OPTS, hci_cc_read_local_pairing_opts,
4091 sizeof(struct hci_rp_read_local_pairing_opts)),
4092 HCI_CC(HCI_OP_READ_PAGE_SCAN_ACTIVITY, hci_cc_read_page_scan_activity,
4093 sizeof(struct hci_rp_read_page_scan_activity)),
4094 HCI_CC_STATUS(HCI_OP_WRITE_PAGE_SCAN_ACTIVITY,
4095 hci_cc_write_page_scan_activity),
4096 HCI_CC(HCI_OP_READ_PAGE_SCAN_TYPE, hci_cc_read_page_scan_type,
4097 sizeof(struct hci_rp_read_page_scan_type)),
4098 HCI_CC_STATUS(HCI_OP_WRITE_PAGE_SCAN_TYPE, hci_cc_write_page_scan_type),
4099 HCI_CC(HCI_OP_READ_DATA_BLOCK_SIZE, hci_cc_read_data_block_size,
4100 sizeof(struct hci_rp_read_data_block_size)),
4101 HCI_CC(HCI_OP_READ_FLOW_CONTROL_MODE, hci_cc_read_flow_control_mode,
4102 sizeof(struct hci_rp_read_flow_control_mode)),
4103 HCI_CC(HCI_OP_READ_LOCAL_AMP_INFO, hci_cc_read_local_amp_info,
4104 sizeof(struct hci_rp_read_local_amp_info)),
4105 HCI_CC(HCI_OP_READ_CLOCK, hci_cc_read_clock,
4106 sizeof(struct hci_rp_read_clock)),
4107 HCI_CC(HCI_OP_READ_ENC_KEY_SIZE, hci_cc_read_enc_key_size,
4108 sizeof(struct hci_rp_read_enc_key_size)),
4109 HCI_CC(HCI_OP_READ_INQ_RSP_TX_POWER, hci_cc_read_inq_rsp_tx_power,
4110 sizeof(struct hci_rp_read_inq_rsp_tx_power)),
4111 HCI_CC(HCI_OP_READ_DEF_ERR_DATA_REPORTING,
4112 hci_cc_read_def_err_data_reporting,
4113 sizeof(struct hci_rp_read_def_err_data_reporting)),
4114 HCI_CC_STATUS(HCI_OP_WRITE_DEF_ERR_DATA_REPORTING,
4115 hci_cc_write_def_err_data_reporting),
4116 HCI_CC(HCI_OP_PIN_CODE_REPLY, hci_cc_pin_code_reply,
4117 sizeof(struct hci_rp_pin_code_reply)),
4118 HCI_CC(HCI_OP_PIN_CODE_NEG_REPLY, hci_cc_pin_code_neg_reply,
4119 sizeof(struct hci_rp_pin_code_neg_reply)),
4120 HCI_CC(HCI_OP_READ_LOCAL_OOB_DATA, hci_cc_read_local_oob_data,
4121 sizeof(struct hci_rp_read_local_oob_data)),
4122 HCI_CC(HCI_OP_READ_LOCAL_OOB_EXT_DATA, hci_cc_read_local_oob_ext_data,
4123 sizeof(struct hci_rp_read_local_oob_ext_data)),
4124 HCI_CC(HCI_OP_LE_READ_BUFFER_SIZE, hci_cc_le_read_buffer_size,
4125 sizeof(struct hci_rp_le_read_buffer_size)),
4126 HCI_CC(HCI_OP_LE_READ_LOCAL_FEATURES, hci_cc_le_read_local_features,
4127 sizeof(struct hci_rp_le_read_local_features)),
4128 HCI_CC(HCI_OP_LE_READ_ADV_TX_POWER, hci_cc_le_read_adv_tx_power,
4129 sizeof(struct hci_rp_le_read_adv_tx_power)),
4130 HCI_CC(HCI_OP_USER_CONFIRM_REPLY, hci_cc_user_confirm_reply,
4131 sizeof(struct hci_rp_user_confirm_reply)),
4132 HCI_CC(HCI_OP_USER_CONFIRM_NEG_REPLY, hci_cc_user_confirm_neg_reply,
4133 sizeof(struct hci_rp_user_confirm_reply)),
4134 HCI_CC(HCI_OP_USER_PASSKEY_REPLY, hci_cc_user_passkey_reply,
4135 sizeof(struct hci_rp_user_confirm_reply)),
4136 HCI_CC(HCI_OP_USER_PASSKEY_NEG_REPLY, hci_cc_user_passkey_neg_reply,
4137 sizeof(struct hci_rp_user_confirm_reply)),
4138 HCI_CC_STATUS(HCI_OP_LE_SET_RANDOM_ADDR, hci_cc_le_set_random_addr),
4139 HCI_CC_STATUS(HCI_OP_LE_SET_ADV_ENABLE, hci_cc_le_set_adv_enable),
4140 HCI_CC_STATUS(HCI_OP_LE_SET_SCAN_PARAM, hci_cc_le_set_scan_param),
4141 HCI_CC_STATUS(HCI_OP_LE_SET_SCAN_ENABLE, hci_cc_le_set_scan_enable),
4142 HCI_CC(HCI_OP_LE_READ_ACCEPT_LIST_SIZE,
4143 hci_cc_le_read_accept_list_size,
4144 sizeof(struct hci_rp_le_read_accept_list_size)),
4145 HCI_CC_STATUS(HCI_OP_LE_CLEAR_ACCEPT_LIST, hci_cc_le_clear_accept_list),
4146 HCI_CC_STATUS(HCI_OP_LE_ADD_TO_ACCEPT_LIST,
4147 hci_cc_le_add_to_accept_list),
4148 HCI_CC_STATUS(HCI_OP_LE_DEL_FROM_ACCEPT_LIST,
4149 hci_cc_le_del_from_accept_list),
4150 HCI_CC(HCI_OP_LE_READ_SUPPORTED_STATES, hci_cc_le_read_supported_states,
4151 sizeof(struct hci_rp_le_read_supported_states)),
4152 HCI_CC(HCI_OP_LE_READ_DEF_DATA_LEN, hci_cc_le_read_def_data_len,
4153 sizeof(struct hci_rp_le_read_def_data_len)),
4154 HCI_CC_STATUS(HCI_OP_LE_WRITE_DEF_DATA_LEN,
4155 hci_cc_le_write_def_data_len),
4156 HCI_CC_STATUS(HCI_OP_LE_ADD_TO_RESOLV_LIST,
4157 hci_cc_le_add_to_resolv_list),
4158 HCI_CC_STATUS(HCI_OP_LE_DEL_FROM_RESOLV_LIST,
4159 hci_cc_le_del_from_resolv_list),
4160 HCI_CC_STATUS(HCI_OP_LE_CLEAR_RESOLV_LIST,
4161 hci_cc_le_clear_resolv_list),
4162 HCI_CC(HCI_OP_LE_READ_RESOLV_LIST_SIZE, hci_cc_le_read_resolv_list_size,
4163 sizeof(struct hci_rp_le_read_resolv_list_size)),
4164 HCI_CC_STATUS(HCI_OP_LE_SET_ADDR_RESOLV_ENABLE,
4165 hci_cc_le_set_addr_resolution_enable),
4166 HCI_CC(HCI_OP_LE_READ_MAX_DATA_LEN, hci_cc_le_read_max_data_len,
4167 sizeof(struct hci_rp_le_read_max_data_len)),
4168 HCI_CC_STATUS(HCI_OP_WRITE_LE_HOST_SUPPORTED,
4169 hci_cc_write_le_host_supported),
4170 HCI_CC_STATUS(HCI_OP_LE_SET_ADV_PARAM, hci_cc_set_adv_param),
4171 HCI_CC(HCI_OP_READ_RSSI, hci_cc_read_rssi,
4172 sizeof(struct hci_rp_read_rssi)),
4173 HCI_CC(HCI_OP_READ_TX_POWER, hci_cc_read_tx_power,
4174 sizeof(struct hci_rp_read_tx_power)),
4175 HCI_CC_STATUS(HCI_OP_WRITE_SSP_DEBUG_MODE, hci_cc_write_ssp_debug_mode),
4176 HCI_CC_STATUS(HCI_OP_LE_SET_EXT_SCAN_PARAMS,
4177 hci_cc_le_set_ext_scan_param),
4178 HCI_CC_STATUS(HCI_OP_LE_SET_EXT_SCAN_ENABLE,
4179 hci_cc_le_set_ext_scan_enable),
4180 HCI_CC_STATUS(HCI_OP_LE_SET_DEFAULT_PHY, hci_cc_le_set_default_phy),
4181 HCI_CC(HCI_OP_LE_READ_NUM_SUPPORTED_ADV_SETS,
4182 hci_cc_le_read_num_adv_sets,
4183 sizeof(struct hci_rp_le_read_num_supported_adv_sets)),
4184 HCI_CC(HCI_OP_LE_SET_EXT_ADV_PARAMS, hci_cc_set_ext_adv_param,
4185 sizeof(struct hci_rp_le_set_ext_adv_params)),
4186 HCI_CC_STATUS(HCI_OP_LE_SET_EXT_ADV_ENABLE,
4187 hci_cc_le_set_ext_adv_enable),
4188 HCI_CC_STATUS(HCI_OP_LE_SET_ADV_SET_RAND_ADDR,
4189 hci_cc_le_set_adv_set_random_addr),
4190 HCI_CC_STATUS(HCI_OP_LE_REMOVE_ADV_SET, hci_cc_le_remove_adv_set),
4191 HCI_CC_STATUS(HCI_OP_LE_CLEAR_ADV_SETS, hci_cc_le_clear_adv_sets),
4192 HCI_CC_STATUS(HCI_OP_LE_SET_PER_ADV_PARAMS, hci_cc_set_per_adv_param),
4193 HCI_CC_STATUS(HCI_OP_LE_SET_PER_ADV_ENABLE,
4194 hci_cc_le_set_per_adv_enable),
4195 HCI_CC(HCI_OP_LE_READ_TRANSMIT_POWER, hci_cc_le_read_transmit_power,
4196 sizeof(struct hci_rp_le_read_transmit_power)),
4197 HCI_CC_STATUS(HCI_OP_LE_SET_PRIVACY_MODE, hci_cc_le_set_privacy_mode),
4198 HCI_CC(HCI_OP_LE_READ_BUFFER_SIZE_V2, hci_cc_le_read_buffer_size_v2,
4199 sizeof(struct hci_rp_le_read_buffer_size_v2)),
4200 HCI_CC_VL(HCI_OP_LE_SET_CIG_PARAMS, hci_cc_le_set_cig_params,
4201 sizeof(struct hci_rp_le_set_cig_params), HCI_MAX_EVENT_SIZE),
4202 HCI_CC(HCI_OP_LE_SETUP_ISO_PATH, hci_cc_le_setup_iso_path,
4203 sizeof(struct hci_rp_le_setup_iso_path)),
4206 static u8 hci_cc_func(struct hci_dev *hdev, const struct hci_cc *cc,
4207 struct sk_buff *skb)
4211 if (skb->len < cc->min_len) {
4212 bt_dev_err(hdev, "unexpected cc 0x%4.4x length: %u < %u",
4213 cc->op, skb->len, cc->min_len);
4214 return HCI_ERROR_UNSPECIFIED;
4217 /* Just warn if the length is over max_len size it still be possible to
4218 * partially parse the cc so leave to callback to decide if that is
4221 if (skb->len > cc->max_len)
4222 bt_dev_warn(hdev, "unexpected cc 0x%4.4x length: %u > %u",
4223 cc->op, skb->len, cc->max_len);
4225 data = hci_cc_skb_pull(hdev, skb, cc->op, cc->min_len);
4227 return HCI_ERROR_UNSPECIFIED;
4229 return cc->func(hdev, data, skb);
4232 static void hci_cmd_complete_evt(struct hci_dev *hdev, void *data,
4233 struct sk_buff *skb, u16 *opcode, u8 *status,
4234 hci_req_complete_t *req_complete,
4235 hci_req_complete_skb_t *req_complete_skb)
4237 struct hci_ev_cmd_complete *ev = data;
4240 *opcode = __le16_to_cpu(ev->opcode);
4242 bt_dev_dbg(hdev, "opcode 0x%4.4x", *opcode);
4244 for (i = 0; i < ARRAY_SIZE(hci_cc_table); i++) {
4245 if (hci_cc_table[i].op == *opcode) {
4246 *status = hci_cc_func(hdev, &hci_cc_table[i], skb);
4251 if (i == ARRAY_SIZE(hci_cc_table)) {
4252 /* Unknown opcode, assume byte 0 contains the status, so
4253 * that e.g. __hci_cmd_sync() properly returns errors
4254 * for vendor specific commands send by HCI drivers.
4255 * If a vendor doesn't actually follow this convention we may
4256 * need to introduce a vendor CC table in order to properly set
4259 *status = skb->data[0];
4262 handle_cmd_cnt_and_timer(hdev, ev->ncmd);
4264 hci_req_cmd_complete(hdev, *opcode, *status, req_complete,
4267 if (hci_dev_test_flag(hdev, HCI_CMD_PENDING)) {
4269 "unexpected event for opcode 0x%4.4x", *opcode);
4273 if (atomic_read(&hdev->cmd_cnt) && !skb_queue_empty(&hdev->cmd_q))
4274 queue_work(hdev->workqueue, &hdev->cmd_work);
4277 static void hci_cs_le_create_cis(struct hci_dev *hdev, u8 status)
4279 struct hci_cp_le_create_cis *cp;
4280 bool pending = false;
4283 bt_dev_dbg(hdev, "status 0x%2.2x", status);
4288 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_CREATE_CIS);
4294 /* Remove connection if command failed */
4295 for (i = 0; cp->num_cis; cp->num_cis--, i++) {
4296 struct hci_conn *conn;
4299 handle = __le16_to_cpu(cp->cis[i].cis_handle);
4301 conn = hci_conn_hash_lookup_handle(hdev, handle);
4303 if (test_and_clear_bit(HCI_CONN_CREATE_CIS,
4306 conn->state = BT_CLOSED;
4307 hci_connect_cfm(conn, status);
4313 hci_le_create_cis_pending(hdev);
4315 hci_dev_unlock(hdev);
4318 #define HCI_CS(_op, _func) \
4324 static const struct hci_cs {
4326 void (*func)(struct hci_dev *hdev, __u8 status);
4327 } hci_cs_table[] = {
4328 HCI_CS(HCI_OP_INQUIRY, hci_cs_inquiry),
4329 HCI_CS(HCI_OP_CREATE_CONN, hci_cs_create_conn),
4330 HCI_CS(HCI_OP_DISCONNECT, hci_cs_disconnect),
4331 HCI_CS(HCI_OP_ADD_SCO, hci_cs_add_sco),
4332 HCI_CS(HCI_OP_AUTH_REQUESTED, hci_cs_auth_requested),
4333 HCI_CS(HCI_OP_SET_CONN_ENCRYPT, hci_cs_set_conn_encrypt),
4334 HCI_CS(HCI_OP_REMOTE_NAME_REQ, hci_cs_remote_name_req),
4335 HCI_CS(HCI_OP_READ_REMOTE_FEATURES, hci_cs_read_remote_features),
4336 HCI_CS(HCI_OP_READ_REMOTE_EXT_FEATURES,
4337 hci_cs_read_remote_ext_features),
4338 HCI_CS(HCI_OP_SETUP_SYNC_CONN, hci_cs_setup_sync_conn),
4339 HCI_CS(HCI_OP_ENHANCED_SETUP_SYNC_CONN,
4340 hci_cs_enhanced_setup_sync_conn),
4341 HCI_CS(HCI_OP_SNIFF_MODE, hci_cs_sniff_mode),
4342 HCI_CS(HCI_OP_EXIT_SNIFF_MODE, hci_cs_exit_sniff_mode),
4343 HCI_CS(HCI_OP_SWITCH_ROLE, hci_cs_switch_role),
4344 HCI_CS(HCI_OP_LE_CREATE_CONN, hci_cs_le_create_conn),
4345 HCI_CS(HCI_OP_LE_READ_REMOTE_FEATURES, hci_cs_le_read_remote_features),
4346 HCI_CS(HCI_OP_LE_START_ENC, hci_cs_le_start_enc),
4347 HCI_CS(HCI_OP_LE_EXT_CREATE_CONN, hci_cs_le_ext_create_conn),
4348 HCI_CS(HCI_OP_LE_CREATE_CIS, hci_cs_le_create_cis),
4349 HCI_CS(HCI_OP_LE_CREATE_BIG, hci_cs_le_create_big),
4352 static void hci_cmd_status_evt(struct hci_dev *hdev, void *data,
4353 struct sk_buff *skb, u16 *opcode, u8 *status,
4354 hci_req_complete_t *req_complete,
4355 hci_req_complete_skb_t *req_complete_skb)
4357 struct hci_ev_cmd_status *ev = data;
4360 *opcode = __le16_to_cpu(ev->opcode);
4361 *status = ev->status;
4363 bt_dev_dbg(hdev, "opcode 0x%4.4x", *opcode);
4365 for (i = 0; i < ARRAY_SIZE(hci_cs_table); i++) {
4366 if (hci_cs_table[i].op == *opcode) {
4367 hci_cs_table[i].func(hdev, ev->status);
4372 handle_cmd_cnt_and_timer(hdev, ev->ncmd);
4374 /* Indicate request completion if the command failed. Also, if
4375 * we're not waiting for a special event and we get a success
4376 * command status we should try to flag the request as completed
4377 * (since for this kind of commands there will not be a command
4380 if (ev->status || (hdev->sent_cmd && !hci_skb_event(hdev->sent_cmd))) {
4381 hci_req_cmd_complete(hdev, *opcode, ev->status, req_complete,
4383 if (hci_dev_test_flag(hdev, HCI_CMD_PENDING)) {
4384 bt_dev_err(hdev, "unexpected event for opcode 0x%4.4x",
4390 if (atomic_read(&hdev->cmd_cnt) && !skb_queue_empty(&hdev->cmd_q))
4391 queue_work(hdev->workqueue, &hdev->cmd_work);
4394 static void hci_hardware_error_evt(struct hci_dev *hdev, void *data,
4395 struct sk_buff *skb)
4397 struct hci_ev_hardware_error *ev = data;
4399 bt_dev_dbg(hdev, "code 0x%2.2x", ev->code);
4401 hdev->hw_error_code = ev->code;
4403 queue_work(hdev->req_workqueue, &hdev->error_reset);
4406 static void hci_role_change_evt(struct hci_dev *hdev, void *data,
4407 struct sk_buff *skb)
4409 struct hci_ev_role_change *ev = data;
4410 struct hci_conn *conn;
4412 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
4416 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
4419 conn->role = ev->role;
4421 clear_bit(HCI_CONN_RSWITCH_PEND, &conn->flags);
4423 hci_role_switch_cfm(conn, ev->status, ev->role);
4426 hci_dev_unlock(hdev);
4429 static void hci_num_comp_pkts_evt(struct hci_dev *hdev, void *data,
4430 struct sk_buff *skb)
4432 struct hci_ev_num_comp_pkts *ev = data;
4435 if (!hci_ev_skb_pull(hdev, skb, HCI_EV_NUM_COMP_PKTS,
4436 flex_array_size(ev, handles, ev->num)))
4439 if (hdev->flow_ctl_mode != HCI_FLOW_CTL_MODE_PACKET_BASED) {
4440 bt_dev_err(hdev, "wrong event for mode %d", hdev->flow_ctl_mode);
4444 bt_dev_dbg(hdev, "num %d", ev->num);
4446 for (i = 0; i < ev->num; i++) {
4447 struct hci_comp_pkts_info *info = &ev->handles[i];
4448 struct hci_conn *conn;
4449 __u16 handle, count;
4451 handle = __le16_to_cpu(info->handle);
4452 count = __le16_to_cpu(info->count);
4454 conn = hci_conn_hash_lookup_handle(hdev, handle);
4458 conn->sent -= count;
4460 switch (conn->type) {
4462 hdev->acl_cnt += count;
4463 if (hdev->acl_cnt > hdev->acl_pkts)
4464 hdev->acl_cnt = hdev->acl_pkts;
4468 if (hdev->le_pkts) {
4469 hdev->le_cnt += count;
4470 if (hdev->le_cnt > hdev->le_pkts)
4471 hdev->le_cnt = hdev->le_pkts;
4473 hdev->acl_cnt += count;
4474 if (hdev->acl_cnt > hdev->acl_pkts)
4475 hdev->acl_cnt = hdev->acl_pkts;
4480 hdev->sco_cnt += count;
4481 if (hdev->sco_cnt > hdev->sco_pkts)
4482 hdev->sco_cnt = hdev->sco_pkts;
4486 if (hdev->iso_pkts) {
4487 hdev->iso_cnt += count;
4488 if (hdev->iso_cnt > hdev->iso_pkts)
4489 hdev->iso_cnt = hdev->iso_pkts;
4490 } else if (hdev->le_pkts) {
4491 hdev->le_cnt += count;
4492 if (hdev->le_cnt > hdev->le_pkts)
4493 hdev->le_cnt = hdev->le_pkts;
4495 hdev->acl_cnt += count;
4496 if (hdev->acl_cnt > hdev->acl_pkts)
4497 hdev->acl_cnt = hdev->acl_pkts;
4502 bt_dev_err(hdev, "unknown type %d conn %p",
4508 queue_work(hdev->workqueue, &hdev->tx_work);
4511 static struct hci_conn *__hci_conn_lookup_handle(struct hci_dev *hdev,
4514 struct hci_chan *chan;
4516 switch (hdev->dev_type) {
4518 return hci_conn_hash_lookup_handle(hdev, handle);
4520 chan = hci_chan_lookup_handle(hdev, handle);
4525 bt_dev_err(hdev, "unknown dev_type %d", hdev->dev_type);
4532 static void hci_num_comp_blocks_evt(struct hci_dev *hdev, void *data,
4533 struct sk_buff *skb)
4535 struct hci_ev_num_comp_blocks *ev = data;
4538 if (!hci_ev_skb_pull(hdev, skb, HCI_EV_NUM_COMP_BLOCKS,
4539 flex_array_size(ev, handles, ev->num_hndl)))
4542 if (hdev->flow_ctl_mode != HCI_FLOW_CTL_MODE_BLOCK_BASED) {
4543 bt_dev_err(hdev, "wrong event for mode %d",
4544 hdev->flow_ctl_mode);
4548 bt_dev_dbg(hdev, "num_blocks %d num_hndl %d", ev->num_blocks,
4551 for (i = 0; i < ev->num_hndl; i++) {
4552 struct hci_comp_blocks_info *info = &ev->handles[i];
4553 struct hci_conn *conn = NULL;
4554 __u16 handle, block_count;
4556 handle = __le16_to_cpu(info->handle);
4557 block_count = __le16_to_cpu(info->blocks);
4559 conn = __hci_conn_lookup_handle(hdev, handle);
4563 conn->sent -= block_count;
4565 switch (conn->type) {
4568 hdev->block_cnt += block_count;
4569 if (hdev->block_cnt > hdev->num_blocks)
4570 hdev->block_cnt = hdev->num_blocks;
4574 bt_dev_err(hdev, "unknown type %d conn %p",
4580 queue_work(hdev->workqueue, &hdev->tx_work);
4583 static void hci_mode_change_evt(struct hci_dev *hdev, void *data,
4584 struct sk_buff *skb)
4586 struct hci_ev_mode_change *ev = data;
4587 struct hci_conn *conn;
4589 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
4593 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
4595 conn->mode = ev->mode;
4597 if (!test_and_clear_bit(HCI_CONN_MODE_CHANGE_PEND,
4599 if (conn->mode == HCI_CM_ACTIVE)
4600 set_bit(HCI_CONN_POWER_SAVE, &conn->flags);
4602 clear_bit(HCI_CONN_POWER_SAVE, &conn->flags);
4605 if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags))
4606 hci_sco_setup(conn, ev->status);
4609 hci_dev_unlock(hdev);
4612 static void hci_pin_code_request_evt(struct hci_dev *hdev, void *data,
4613 struct sk_buff *skb)
4615 struct hci_ev_pin_code_req *ev = data;
4616 struct hci_conn *conn;
4618 bt_dev_dbg(hdev, "");
4622 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
4626 if (conn->state == BT_CONNECTED) {
4627 hci_conn_hold(conn);
4628 conn->disc_timeout = HCI_PAIRING_TIMEOUT;
4629 hci_conn_drop(conn);
4632 if (!hci_dev_test_flag(hdev, HCI_BONDABLE) &&
4633 !test_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags)) {
4634 hci_send_cmd(hdev, HCI_OP_PIN_CODE_NEG_REPLY,
4635 sizeof(ev->bdaddr), &ev->bdaddr);
4636 } else if (hci_dev_test_flag(hdev, HCI_MGMT)) {
4639 if (conn->pending_sec_level == BT_SECURITY_HIGH)
4644 mgmt_pin_code_request(hdev, &ev->bdaddr, secure);
4648 hci_dev_unlock(hdev);
4651 static void conn_set_key(struct hci_conn *conn, u8 key_type, u8 pin_len)
4653 if (key_type == HCI_LK_CHANGED_COMBINATION)
4656 conn->pin_length = pin_len;
4657 conn->key_type = key_type;
4660 case HCI_LK_LOCAL_UNIT:
4661 case HCI_LK_REMOTE_UNIT:
4662 case HCI_LK_DEBUG_COMBINATION:
4664 case HCI_LK_COMBINATION:
4666 conn->pending_sec_level = BT_SECURITY_HIGH;
4668 conn->pending_sec_level = BT_SECURITY_MEDIUM;
4670 case HCI_LK_UNAUTH_COMBINATION_P192:
4671 case HCI_LK_UNAUTH_COMBINATION_P256:
4672 conn->pending_sec_level = BT_SECURITY_MEDIUM;
4674 case HCI_LK_AUTH_COMBINATION_P192:
4675 conn->pending_sec_level = BT_SECURITY_HIGH;
4677 case HCI_LK_AUTH_COMBINATION_P256:
4678 conn->pending_sec_level = BT_SECURITY_FIPS;
4683 static void hci_link_key_request_evt(struct hci_dev *hdev, void *data,
4684 struct sk_buff *skb)
4686 struct hci_ev_link_key_req *ev = data;
4687 struct hci_cp_link_key_reply cp;
4688 struct hci_conn *conn;
4689 struct link_key *key;
4691 bt_dev_dbg(hdev, "");
4693 if (!hci_dev_test_flag(hdev, HCI_MGMT))
4698 key = hci_find_link_key(hdev, &ev->bdaddr);
4700 bt_dev_dbg(hdev, "link key not found for %pMR", &ev->bdaddr);
4704 bt_dev_dbg(hdev, "found key type %u for %pMR", key->type, &ev->bdaddr);
4706 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
4708 clear_bit(HCI_CONN_NEW_LINK_KEY, &conn->flags);
4710 if ((key->type == HCI_LK_UNAUTH_COMBINATION_P192 ||
4711 key->type == HCI_LK_UNAUTH_COMBINATION_P256) &&
4712 conn->auth_type != 0xff && (conn->auth_type & 0x01)) {
4713 bt_dev_dbg(hdev, "ignoring unauthenticated key");
4717 if (key->type == HCI_LK_COMBINATION && key->pin_len < 16 &&
4718 (conn->pending_sec_level == BT_SECURITY_HIGH ||
4719 conn->pending_sec_level == BT_SECURITY_FIPS)) {
4720 bt_dev_dbg(hdev, "ignoring key unauthenticated for high security");
4724 conn_set_key(conn, key->type, key->pin_len);
4727 bacpy(&cp.bdaddr, &ev->bdaddr);
4728 memcpy(cp.link_key, key->val, HCI_LINK_KEY_SIZE);
4730 hci_send_cmd(hdev, HCI_OP_LINK_KEY_REPLY, sizeof(cp), &cp);
4732 hci_dev_unlock(hdev);
4737 hci_send_cmd(hdev, HCI_OP_LINK_KEY_NEG_REPLY, 6, &ev->bdaddr);
4738 hci_dev_unlock(hdev);
4741 static void hci_link_key_notify_evt(struct hci_dev *hdev, void *data,
4742 struct sk_buff *skb)
4744 struct hci_ev_link_key_notify *ev = data;
4745 struct hci_conn *conn;
4746 struct link_key *key;
4750 bt_dev_dbg(hdev, "");
4754 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
4758 /* Ignore NULL link key against CVE-2020-26555 */
4759 if (!crypto_memneq(ev->link_key, ZERO_KEY, HCI_LINK_KEY_SIZE)) {
4760 bt_dev_dbg(hdev, "Ignore NULL link key (ZERO KEY) for %pMR",
4762 hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE);
4763 hci_conn_drop(conn);
4767 hci_conn_hold(conn);
4768 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
4769 hci_conn_drop(conn);
4771 set_bit(HCI_CONN_NEW_LINK_KEY, &conn->flags);
4772 conn_set_key(conn, ev->key_type, conn->pin_length);
4774 if (!hci_dev_test_flag(hdev, HCI_MGMT))
4777 key = hci_add_link_key(hdev, conn, &ev->bdaddr, ev->link_key,
4778 ev->key_type, pin_len, &persistent);
4782 /* Update connection information since adding the key will have
4783 * fixed up the type in the case of changed combination keys.
4785 if (ev->key_type == HCI_LK_CHANGED_COMBINATION)
4786 conn_set_key(conn, key->type, key->pin_len);
4788 mgmt_new_link_key(hdev, key, persistent);
4790 /* Keep debug keys around only if the HCI_KEEP_DEBUG_KEYS flag
4791 * is set. If it's not set simply remove the key from the kernel
4792 * list (we've still notified user space about it but with
4793 * store_hint being 0).
4795 if (key->type == HCI_LK_DEBUG_COMBINATION &&
4796 !hci_dev_test_flag(hdev, HCI_KEEP_DEBUG_KEYS)) {
4797 list_del_rcu(&key->list);
4798 kfree_rcu(key, rcu);
4803 clear_bit(HCI_CONN_FLUSH_KEY, &conn->flags);
4805 set_bit(HCI_CONN_FLUSH_KEY, &conn->flags);
4808 hci_dev_unlock(hdev);
4811 static void hci_clock_offset_evt(struct hci_dev *hdev, void *data,
4812 struct sk_buff *skb)
4814 struct hci_ev_clock_offset *ev = data;
4815 struct hci_conn *conn;
4817 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
4821 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
4822 if (conn && !ev->status) {
4823 struct inquiry_entry *ie;
4825 ie = hci_inquiry_cache_lookup(hdev, &conn->dst);
4827 ie->data.clock_offset = ev->clock_offset;
4828 ie->timestamp = jiffies;
4832 hci_dev_unlock(hdev);
4835 static void hci_pkt_type_change_evt(struct hci_dev *hdev, void *data,
4836 struct sk_buff *skb)
4838 struct hci_ev_pkt_type_change *ev = data;
4839 struct hci_conn *conn;
4841 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
4845 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
4846 if (conn && !ev->status)
4847 conn->pkt_type = __le16_to_cpu(ev->pkt_type);
4849 hci_dev_unlock(hdev);
4852 static void hci_pscan_rep_mode_evt(struct hci_dev *hdev, void *data,
4853 struct sk_buff *skb)
4855 struct hci_ev_pscan_rep_mode *ev = data;
4856 struct inquiry_entry *ie;
4858 bt_dev_dbg(hdev, "");
4862 ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
4864 ie->data.pscan_rep_mode = ev->pscan_rep_mode;
4865 ie->timestamp = jiffies;
4868 hci_dev_unlock(hdev);
4871 static void hci_inquiry_result_with_rssi_evt(struct hci_dev *hdev, void *edata,
4872 struct sk_buff *skb)
4874 struct hci_ev_inquiry_result_rssi *ev = edata;
4875 struct inquiry_data data;
4878 bt_dev_dbg(hdev, "num_rsp %d", ev->num);
4883 if (hci_dev_test_flag(hdev, HCI_PERIODIC_INQ))
4888 if (skb->len == array_size(ev->num,
4889 sizeof(struct inquiry_info_rssi_pscan))) {
4890 struct inquiry_info_rssi_pscan *info;
4892 for (i = 0; i < ev->num; i++) {
4895 info = hci_ev_skb_pull(hdev, skb,
4896 HCI_EV_INQUIRY_RESULT_WITH_RSSI,
4899 bt_dev_err(hdev, "Malformed HCI Event: 0x%2.2x",
4900 HCI_EV_INQUIRY_RESULT_WITH_RSSI);
4904 bacpy(&data.bdaddr, &info->bdaddr);
4905 data.pscan_rep_mode = info->pscan_rep_mode;
4906 data.pscan_period_mode = info->pscan_period_mode;
4907 data.pscan_mode = info->pscan_mode;
4908 memcpy(data.dev_class, info->dev_class, 3);
4909 data.clock_offset = info->clock_offset;
4910 data.rssi = info->rssi;
4911 data.ssp_mode = 0x00;
4913 flags = hci_inquiry_cache_update(hdev, &data, false);
4915 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
4916 info->dev_class, info->rssi,
4917 flags, NULL, 0, NULL, 0, 0);
4919 } else if (skb->len == array_size(ev->num,
4920 sizeof(struct inquiry_info_rssi))) {
4921 struct inquiry_info_rssi *info;
4923 for (i = 0; i < ev->num; i++) {
4926 info = hci_ev_skb_pull(hdev, skb,
4927 HCI_EV_INQUIRY_RESULT_WITH_RSSI,
4930 bt_dev_err(hdev, "Malformed HCI Event: 0x%2.2x",
4931 HCI_EV_INQUIRY_RESULT_WITH_RSSI);
4935 bacpy(&data.bdaddr, &info->bdaddr);
4936 data.pscan_rep_mode = info->pscan_rep_mode;
4937 data.pscan_period_mode = info->pscan_period_mode;
4938 data.pscan_mode = 0x00;
4939 memcpy(data.dev_class, info->dev_class, 3);
4940 data.clock_offset = info->clock_offset;
4941 data.rssi = info->rssi;
4942 data.ssp_mode = 0x00;
4944 flags = hci_inquiry_cache_update(hdev, &data, false);
4946 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
4947 info->dev_class, info->rssi,
4948 flags, NULL, 0, NULL, 0, 0);
4951 bt_dev_err(hdev, "Malformed HCI Event: 0x%2.2x",
4952 HCI_EV_INQUIRY_RESULT_WITH_RSSI);
4955 hci_dev_unlock(hdev);
4958 static void hci_remote_ext_features_evt(struct hci_dev *hdev, void *data,
4959 struct sk_buff *skb)
4961 struct hci_ev_remote_ext_features *ev = data;
4962 struct hci_conn *conn;
4964 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
4968 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
4972 if (ev->page < HCI_MAX_PAGES)
4973 memcpy(conn->features[ev->page], ev->features, 8);
4975 if (!ev->status && ev->page == 0x01) {
4976 struct inquiry_entry *ie;
4978 ie = hci_inquiry_cache_lookup(hdev, &conn->dst);
4980 ie->data.ssp_mode = (ev->features[0] & LMP_HOST_SSP);
4982 if (ev->features[0] & LMP_HOST_SSP) {
4983 set_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
4985 /* It is mandatory by the Bluetooth specification that
4986 * Extended Inquiry Results are only used when Secure
4987 * Simple Pairing is enabled, but some devices violate
4990 * To make these devices work, the internal SSP
4991 * enabled flag needs to be cleared if the remote host
4992 * features do not indicate SSP support */
4993 clear_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
4996 if (ev->features[0] & LMP_HOST_SC)
4997 set_bit(HCI_CONN_SC_ENABLED, &conn->flags);
5000 if (conn->state != BT_CONFIG)
5003 if (!ev->status && !test_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags)) {
5004 struct hci_cp_remote_name_req cp;
5005 memset(&cp, 0, sizeof(cp));
5006 bacpy(&cp.bdaddr, &conn->dst);
5007 cp.pscan_rep_mode = 0x02;
5008 hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp);
5009 } else if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
5010 mgmt_device_connected(hdev, conn, NULL, 0);
5012 if (!hci_outgoing_auth_needed(hdev, conn)) {
5013 conn->state = BT_CONNECTED;
5014 hci_connect_cfm(conn, ev->status);
5015 hci_conn_drop(conn);
5019 hci_dev_unlock(hdev);
5022 static void hci_sync_conn_complete_evt(struct hci_dev *hdev, void *data,
5023 struct sk_buff *skb)
5025 struct hci_ev_sync_conn_complete *ev = data;
5026 struct hci_conn *conn;
5027 u8 status = ev->status;
5029 switch (ev->link_type) {
5034 /* As per Core 5.3 Vol 4 Part E 7.7.35 (p.2219), Link_Type
5035 * for HCI_Synchronous_Connection_Complete is limited to
5036 * either SCO or eSCO
5038 bt_dev_err(hdev, "Ignoring connect complete event for invalid link type");
5042 bt_dev_dbg(hdev, "status 0x%2.2x", status);
5046 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr);
5048 if (ev->link_type == ESCO_LINK)
5051 /* When the link type in the event indicates SCO connection
5052 * and lookup of the connection object fails, then check
5053 * if an eSCO connection object exists.
5055 * The core limits the synchronous connections to either
5056 * SCO or eSCO. The eSCO connection is preferred and tried
5057 * to be setup first and until successfully established,
5058 * the link type will be hinted as eSCO.
5060 conn = hci_conn_hash_lookup_ba(hdev, ESCO_LINK, &ev->bdaddr);
5065 /* The HCI_Synchronous_Connection_Complete event is only sent once per connection.
5066 * Processing it more than once per connection can corrupt kernel memory.
5068 * As the connection handle is set here for the first time, it indicates
5069 * whether the connection is already set up.
5071 if (!HCI_CONN_HANDLE_UNSET(conn->handle)) {
5072 bt_dev_err(hdev, "Ignoring HCI_Sync_Conn_Complete event for existing connection");
5078 status = hci_conn_set_handle(conn, __le16_to_cpu(ev->handle));
5080 conn->state = BT_CLOSED;
5084 conn->state = BT_CONNECTED;
5085 conn->type = ev->link_type;
5087 hci_debugfs_create_conn(conn);
5088 hci_conn_add_sysfs(conn);
5091 case 0x10: /* Connection Accept Timeout */
5092 case 0x0d: /* Connection Rejected due to Limited Resources */
5093 case 0x11: /* Unsupported Feature or Parameter Value */
5094 case 0x1c: /* SCO interval rejected */
5095 case 0x1a: /* Unsupported Remote Feature */
5096 case 0x1e: /* Invalid LMP Parameters */
5097 case 0x1f: /* Unspecified error */
5098 case 0x20: /* Unsupported LMP Parameter value */
5100 conn->pkt_type = (hdev->esco_type & SCO_ESCO_MASK) |
5101 (hdev->esco_type & EDR_ESCO_MASK);
5102 if (hci_setup_sync(conn, conn->parent->handle))
5108 conn->state = BT_CLOSED;
5112 bt_dev_dbg(hdev, "SCO connected with air mode: %02x", ev->air_mode);
5113 /* Notify only in case of SCO over HCI transport data path which
5114 * is zero and non-zero value shall be non-HCI transport data path
5116 if (conn->codec.data_path == 0 && hdev->notify) {
5117 switch (ev->air_mode) {
5119 hdev->notify(hdev, HCI_NOTIFY_ENABLE_SCO_CVSD);
5122 hdev->notify(hdev, HCI_NOTIFY_ENABLE_SCO_TRANSP);
5127 hci_connect_cfm(conn, status);
5132 hci_dev_unlock(hdev);
5135 static inline size_t eir_get_length(u8 *eir, size_t eir_len)
5139 while (parsed < eir_len) {
5140 u8 field_len = eir[0];
5145 parsed += field_len + 1;
5146 eir += field_len + 1;
5152 static void hci_extended_inquiry_result_evt(struct hci_dev *hdev, void *edata,
5153 struct sk_buff *skb)
5155 struct hci_ev_ext_inquiry_result *ev = edata;
5156 struct inquiry_data data;
5160 if (!hci_ev_skb_pull(hdev, skb, HCI_EV_EXTENDED_INQUIRY_RESULT,
5161 flex_array_size(ev, info, ev->num)))
5164 bt_dev_dbg(hdev, "num %d", ev->num);
5169 if (hci_dev_test_flag(hdev, HCI_PERIODIC_INQ))
5174 for (i = 0; i < ev->num; i++) {
5175 struct extended_inquiry_info *info = &ev->info[i];
5179 bacpy(&data.bdaddr, &info->bdaddr);
5180 data.pscan_rep_mode = info->pscan_rep_mode;
5181 data.pscan_period_mode = info->pscan_period_mode;
5182 data.pscan_mode = 0x00;
5183 memcpy(data.dev_class, info->dev_class, 3);
5184 data.clock_offset = info->clock_offset;
5185 data.rssi = info->rssi;
5186 data.ssp_mode = 0x01;
5188 if (hci_dev_test_flag(hdev, HCI_MGMT))
5189 name_known = eir_get_data(info->data,
5191 EIR_NAME_COMPLETE, NULL);
5195 flags = hci_inquiry_cache_update(hdev, &data, name_known);
5197 eir_len = eir_get_length(info->data, sizeof(info->data));
5199 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
5200 info->dev_class, info->rssi,
5201 flags, info->data, eir_len, NULL, 0, 0);
5204 hci_dev_unlock(hdev);
5207 static void hci_key_refresh_complete_evt(struct hci_dev *hdev, void *data,
5208 struct sk_buff *skb)
5210 struct hci_ev_key_refresh_complete *ev = data;
5211 struct hci_conn *conn;
5213 bt_dev_dbg(hdev, "status 0x%2.2x handle 0x%4.4x", ev->status,
5214 __le16_to_cpu(ev->handle));
5218 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
5222 /* For BR/EDR the necessary steps are taken through the
5223 * auth_complete event.
5225 if (conn->type != LE_LINK)
5229 conn->sec_level = conn->pending_sec_level;
5231 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
5233 if (ev->status && conn->state == BT_CONNECTED) {
5234 hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE);
5235 hci_conn_drop(conn);
5239 if (conn->state == BT_CONFIG) {
5241 conn->state = BT_CONNECTED;
5243 hci_connect_cfm(conn, ev->status);
5244 hci_conn_drop(conn);
5246 hci_auth_cfm(conn, ev->status);
5248 hci_conn_hold(conn);
5249 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
5250 hci_conn_drop(conn);
5254 hci_dev_unlock(hdev);
5257 static u8 hci_get_auth_req(struct hci_conn *conn)
5259 /* If remote requests no-bonding follow that lead */
5260 if (conn->remote_auth == HCI_AT_NO_BONDING ||
5261 conn->remote_auth == HCI_AT_NO_BONDING_MITM)
5262 return conn->remote_auth | (conn->auth_type & 0x01);
5264 /* If both remote and local have enough IO capabilities, require
5267 if (conn->remote_cap != HCI_IO_NO_INPUT_OUTPUT &&
5268 conn->io_capability != HCI_IO_NO_INPUT_OUTPUT)
5269 return conn->remote_auth | 0x01;
5271 /* No MITM protection possible so ignore remote requirement */
5272 return (conn->remote_auth & ~0x01) | (conn->auth_type & 0x01);
5275 static u8 bredr_oob_data_present(struct hci_conn *conn)
5277 struct hci_dev *hdev = conn->hdev;
5278 struct oob_data *data;
5280 data = hci_find_remote_oob_data(hdev, &conn->dst, BDADDR_BREDR);
5284 if (bredr_sc_enabled(hdev)) {
5285 /* When Secure Connections is enabled, then just
5286 * return the present value stored with the OOB
5287 * data. The stored value contains the right present
5288 * information. However it can only be trusted when
5289 * not in Secure Connection Only mode.
5291 if (!hci_dev_test_flag(hdev, HCI_SC_ONLY))
5292 return data->present;
5294 /* When Secure Connections Only mode is enabled, then
5295 * the P-256 values are required. If they are not
5296 * available, then do not declare that OOB data is
5299 if (!crypto_memneq(data->rand256, ZERO_KEY, 16) ||
5300 !crypto_memneq(data->hash256, ZERO_KEY, 16))
5306 /* When Secure Connections is not enabled or actually
5307 * not supported by the hardware, then check that if
5308 * P-192 data values are present.
5310 if (!crypto_memneq(data->rand192, ZERO_KEY, 16) ||
5311 !crypto_memneq(data->hash192, ZERO_KEY, 16))
5317 static void hci_io_capa_request_evt(struct hci_dev *hdev, void *data,
5318 struct sk_buff *skb)
5320 struct hci_ev_io_capa_request *ev = data;
5321 struct hci_conn *conn;
5323 bt_dev_dbg(hdev, "");
5327 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
5328 if (!conn || !hci_conn_ssp_enabled(conn))
5331 hci_conn_hold(conn);
5333 if (!hci_dev_test_flag(hdev, HCI_MGMT))
5336 /* Allow pairing if we're pairable, the initiators of the
5337 * pairing or if the remote is not requesting bonding.
5339 if (hci_dev_test_flag(hdev, HCI_BONDABLE) ||
5340 test_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags) ||
5341 (conn->remote_auth & ~0x01) == HCI_AT_NO_BONDING) {
5342 struct hci_cp_io_capability_reply cp;
5344 bacpy(&cp.bdaddr, &ev->bdaddr);
5345 /* Change the IO capability from KeyboardDisplay
5346 * to DisplayYesNo as it is not supported by BT spec. */
5347 cp.capability = (conn->io_capability == 0x04) ?
5348 HCI_IO_DISPLAY_YESNO : conn->io_capability;
5350 /* If we are initiators, there is no remote information yet */
5351 if (conn->remote_auth == 0xff) {
5352 /* Request MITM protection if our IO caps allow it
5353 * except for the no-bonding case.
5355 if (conn->io_capability != HCI_IO_NO_INPUT_OUTPUT &&
5356 conn->auth_type != HCI_AT_NO_BONDING)
5357 conn->auth_type |= 0x01;
5359 conn->auth_type = hci_get_auth_req(conn);
5362 /* If we're not bondable, force one of the non-bondable
5363 * authentication requirement values.
5365 if (!hci_dev_test_flag(hdev, HCI_BONDABLE))
5366 conn->auth_type &= HCI_AT_NO_BONDING_MITM;
5368 cp.authentication = conn->auth_type;
5369 cp.oob_data = bredr_oob_data_present(conn);
5371 hci_send_cmd(hdev, HCI_OP_IO_CAPABILITY_REPLY,
5374 struct hci_cp_io_capability_neg_reply cp;
5376 bacpy(&cp.bdaddr, &ev->bdaddr);
5377 cp.reason = HCI_ERROR_PAIRING_NOT_ALLOWED;
5379 hci_send_cmd(hdev, HCI_OP_IO_CAPABILITY_NEG_REPLY,
5384 hci_dev_unlock(hdev);
5387 static void hci_io_capa_reply_evt(struct hci_dev *hdev, void *data,
5388 struct sk_buff *skb)
5390 struct hci_ev_io_capa_reply *ev = data;
5391 struct hci_conn *conn;
5393 bt_dev_dbg(hdev, "");
5397 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
5401 conn->remote_cap = ev->capability;
5402 conn->remote_auth = ev->authentication;
5405 hci_dev_unlock(hdev);
5408 static void hci_user_confirm_request_evt(struct hci_dev *hdev, void *data,
5409 struct sk_buff *skb)
5411 struct hci_ev_user_confirm_req *ev = data;
5412 int loc_mitm, rem_mitm, confirm_hint = 0;
5413 struct hci_conn *conn;
5415 bt_dev_dbg(hdev, "");
5419 if (!hci_dev_test_flag(hdev, HCI_MGMT))
5422 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
5426 loc_mitm = (conn->auth_type & 0x01);
5427 rem_mitm = (conn->remote_auth & 0x01);
5429 /* If we require MITM but the remote device can't provide that
5430 * (it has NoInputNoOutput) then reject the confirmation
5431 * request. We check the security level here since it doesn't
5432 * necessarily match conn->auth_type.
5434 if (conn->pending_sec_level > BT_SECURITY_MEDIUM &&
5435 conn->remote_cap == HCI_IO_NO_INPUT_OUTPUT) {
5436 bt_dev_dbg(hdev, "Rejecting request: remote device can't provide MITM");
5437 hci_send_cmd(hdev, HCI_OP_USER_CONFIRM_NEG_REPLY,
5438 sizeof(ev->bdaddr), &ev->bdaddr);
5442 /* If no side requires MITM protection; auto-accept */
5443 if ((!loc_mitm || conn->remote_cap == HCI_IO_NO_INPUT_OUTPUT) &&
5444 (!rem_mitm || conn->io_capability == HCI_IO_NO_INPUT_OUTPUT)) {
5446 /* If we're not the initiators request authorization to
5447 * proceed from user space (mgmt_user_confirm with
5448 * confirm_hint set to 1). The exception is if neither
5449 * side had MITM or if the local IO capability is
5450 * NoInputNoOutput, in which case we do auto-accept
5452 if (!test_bit(HCI_CONN_AUTH_PEND, &conn->flags) &&
5453 conn->io_capability != HCI_IO_NO_INPUT_OUTPUT &&
5454 (loc_mitm || rem_mitm)) {
5455 bt_dev_dbg(hdev, "Confirming auto-accept as acceptor");
5460 /* If there already exists link key in local host, leave the
5461 * decision to user space since the remote device could be
5462 * legitimate or malicious.
5464 if (hci_find_link_key(hdev, &ev->bdaddr)) {
5465 bt_dev_dbg(hdev, "Local host already has link key");
5470 BT_DBG("Auto-accept of user confirmation with %ums delay",
5471 hdev->auto_accept_delay);
5473 if (hdev->auto_accept_delay > 0) {
5474 int delay = msecs_to_jiffies(hdev->auto_accept_delay);
5475 queue_delayed_work(conn->hdev->workqueue,
5476 &conn->auto_accept_work, delay);
5480 hci_send_cmd(hdev, HCI_OP_USER_CONFIRM_REPLY,
5481 sizeof(ev->bdaddr), &ev->bdaddr);
5486 mgmt_user_confirm_request(hdev, &ev->bdaddr, ACL_LINK, 0,
5487 le32_to_cpu(ev->passkey), confirm_hint);
5490 hci_dev_unlock(hdev);
5493 static void hci_user_passkey_request_evt(struct hci_dev *hdev, void *data,
5494 struct sk_buff *skb)
5496 struct hci_ev_user_passkey_req *ev = data;
5498 bt_dev_dbg(hdev, "");
5500 if (hci_dev_test_flag(hdev, HCI_MGMT))
5501 mgmt_user_passkey_request(hdev, &ev->bdaddr, ACL_LINK, 0);
5504 static void hci_user_passkey_notify_evt(struct hci_dev *hdev, void *data,
5505 struct sk_buff *skb)
5507 struct hci_ev_user_passkey_notify *ev = data;
5508 struct hci_conn *conn;
5510 bt_dev_dbg(hdev, "");
5512 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
5516 conn->passkey_notify = __le32_to_cpu(ev->passkey);
5517 conn->passkey_entered = 0;
5519 if (hci_dev_test_flag(hdev, HCI_MGMT))
5520 mgmt_user_passkey_notify(hdev, &conn->dst, conn->type,
5521 conn->dst_type, conn->passkey_notify,
5522 conn->passkey_entered);
5525 static void hci_keypress_notify_evt(struct hci_dev *hdev, void *data,
5526 struct sk_buff *skb)
5528 struct hci_ev_keypress_notify *ev = data;
5529 struct hci_conn *conn;
5531 bt_dev_dbg(hdev, "");
5533 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
5538 case HCI_KEYPRESS_STARTED:
5539 conn->passkey_entered = 0;
5542 case HCI_KEYPRESS_ENTERED:
5543 conn->passkey_entered++;
5546 case HCI_KEYPRESS_ERASED:
5547 conn->passkey_entered--;
5550 case HCI_KEYPRESS_CLEARED:
5551 conn->passkey_entered = 0;
5554 case HCI_KEYPRESS_COMPLETED:
5558 if (hci_dev_test_flag(hdev, HCI_MGMT))
5559 mgmt_user_passkey_notify(hdev, &conn->dst, conn->type,
5560 conn->dst_type, conn->passkey_notify,
5561 conn->passkey_entered);
5564 static void hci_simple_pair_complete_evt(struct hci_dev *hdev, void *data,
5565 struct sk_buff *skb)
5567 struct hci_ev_simple_pair_complete *ev = data;
5568 struct hci_conn *conn;
5570 bt_dev_dbg(hdev, "");
5574 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
5575 if (!conn || !hci_conn_ssp_enabled(conn))
5578 /* Reset the authentication requirement to unknown */
5579 conn->remote_auth = 0xff;
5581 /* To avoid duplicate auth_failed events to user space we check
5582 * the HCI_CONN_AUTH_PEND flag which will be set if we
5583 * initiated the authentication. A traditional auth_complete
5584 * event gets always produced as initiator and is also mapped to
5585 * the mgmt_auth_failed event */
5586 if (!test_bit(HCI_CONN_AUTH_PEND, &conn->flags) && ev->status)
5587 mgmt_auth_failed(conn, ev->status);
5589 hci_conn_drop(conn);
5592 hci_dev_unlock(hdev);
5595 static void hci_remote_host_features_evt(struct hci_dev *hdev, void *data,
5596 struct sk_buff *skb)
5598 struct hci_ev_remote_host_features *ev = data;
5599 struct inquiry_entry *ie;
5600 struct hci_conn *conn;
5602 bt_dev_dbg(hdev, "");
5606 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
5608 memcpy(conn->features[1], ev->features, 8);
5610 ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
5612 ie->data.ssp_mode = (ev->features[0] & LMP_HOST_SSP);
5614 hci_dev_unlock(hdev);
5617 static void hci_remote_oob_data_request_evt(struct hci_dev *hdev, void *edata,
5618 struct sk_buff *skb)
5620 struct hci_ev_remote_oob_data_request *ev = edata;
5621 struct oob_data *data;
5623 bt_dev_dbg(hdev, "");
5627 if (!hci_dev_test_flag(hdev, HCI_MGMT))
5630 data = hci_find_remote_oob_data(hdev, &ev->bdaddr, BDADDR_BREDR);
5632 struct hci_cp_remote_oob_data_neg_reply cp;
5634 bacpy(&cp.bdaddr, &ev->bdaddr);
5635 hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_DATA_NEG_REPLY,
5640 if (bredr_sc_enabled(hdev)) {
5641 struct hci_cp_remote_oob_ext_data_reply cp;
5643 bacpy(&cp.bdaddr, &ev->bdaddr);
5644 if (hci_dev_test_flag(hdev, HCI_SC_ONLY)) {
5645 memset(cp.hash192, 0, sizeof(cp.hash192));
5646 memset(cp.rand192, 0, sizeof(cp.rand192));
5648 memcpy(cp.hash192, data->hash192, sizeof(cp.hash192));
5649 memcpy(cp.rand192, data->rand192, sizeof(cp.rand192));
5651 memcpy(cp.hash256, data->hash256, sizeof(cp.hash256));
5652 memcpy(cp.rand256, data->rand256, sizeof(cp.rand256));
5654 hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_EXT_DATA_REPLY,
5657 struct hci_cp_remote_oob_data_reply cp;
5659 bacpy(&cp.bdaddr, &ev->bdaddr);
5660 memcpy(cp.hash, data->hash192, sizeof(cp.hash));
5661 memcpy(cp.rand, data->rand192, sizeof(cp.rand));
5663 hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_DATA_REPLY,
5668 hci_dev_unlock(hdev);
5671 #if IS_ENABLED(CONFIG_BT_HS)
5672 static void hci_chan_selected_evt(struct hci_dev *hdev, void *data,
5673 struct sk_buff *skb)
5675 struct hci_ev_channel_selected *ev = data;
5676 struct hci_conn *hcon;
5678 bt_dev_dbg(hdev, "handle 0x%2.2x", ev->phy_handle);
5680 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
5684 amp_read_loc_assoc_final_data(hdev, hcon);
5687 static void hci_phy_link_complete_evt(struct hci_dev *hdev, void *data,
5688 struct sk_buff *skb)
5690 struct hci_ev_phy_link_complete *ev = data;
5691 struct hci_conn *hcon, *bredr_hcon;
5693 bt_dev_dbg(hdev, "handle 0x%2.2x status 0x%2.2x", ev->phy_handle,
5698 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
5710 bredr_hcon = hcon->amp_mgr->l2cap_conn->hcon;
5712 hcon->state = BT_CONNECTED;
5713 bacpy(&hcon->dst, &bredr_hcon->dst);
5715 hci_conn_hold(hcon);
5716 hcon->disc_timeout = HCI_DISCONN_TIMEOUT;
5717 hci_conn_drop(hcon);
5719 hci_debugfs_create_conn(hcon);
5720 hci_conn_add_sysfs(hcon);
5722 amp_physical_cfm(bredr_hcon, hcon);
5725 hci_dev_unlock(hdev);
5728 static void hci_loglink_complete_evt(struct hci_dev *hdev, void *data,
5729 struct sk_buff *skb)
5731 struct hci_ev_logical_link_complete *ev = data;
5732 struct hci_conn *hcon;
5733 struct hci_chan *hchan;
5734 struct amp_mgr *mgr;
5736 bt_dev_dbg(hdev, "log_handle 0x%4.4x phy_handle 0x%2.2x status 0x%2.2x",
5737 le16_to_cpu(ev->handle), ev->phy_handle, ev->status);
5739 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
5743 /* Create AMP hchan */
5744 hchan = hci_chan_create(hcon);
5748 hchan->handle = le16_to_cpu(ev->handle);
5751 BT_DBG("hcon %p mgr %p hchan %p", hcon, hcon->amp_mgr, hchan);
5753 mgr = hcon->amp_mgr;
5754 if (mgr && mgr->bredr_chan) {
5755 struct l2cap_chan *bredr_chan = mgr->bredr_chan;
5757 l2cap_chan_lock(bredr_chan);
5759 bredr_chan->conn->mtu = hdev->block_mtu;
5760 l2cap_logical_cfm(bredr_chan, hchan, 0);
5761 hci_conn_hold(hcon);
5763 l2cap_chan_unlock(bredr_chan);
5767 static void hci_disconn_loglink_complete_evt(struct hci_dev *hdev, void *data,
5768 struct sk_buff *skb)
5770 struct hci_ev_disconn_logical_link_complete *ev = data;
5771 struct hci_chan *hchan;
5773 bt_dev_dbg(hdev, "handle 0x%4.4x status 0x%2.2x",
5774 le16_to_cpu(ev->handle), ev->status);
5781 hchan = hci_chan_lookup_handle(hdev, le16_to_cpu(ev->handle));
5782 if (!hchan || !hchan->amp)
5785 amp_destroy_logical_link(hchan, ev->reason);
5788 hci_dev_unlock(hdev);
5791 static void hci_disconn_phylink_complete_evt(struct hci_dev *hdev, void *data,
5792 struct sk_buff *skb)
5794 struct hci_ev_disconn_phy_link_complete *ev = data;
5795 struct hci_conn *hcon;
5797 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
5804 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
5805 if (hcon && hcon->type == AMP_LINK) {
5806 hcon->state = BT_CLOSED;
5807 hci_disconn_cfm(hcon, ev->reason);
5811 hci_dev_unlock(hdev);
5815 static void le_conn_update_addr(struct hci_conn *conn, bdaddr_t *bdaddr,
5816 u8 bdaddr_type, bdaddr_t *local_rpa)
5819 conn->dst_type = bdaddr_type;
5820 conn->resp_addr_type = bdaddr_type;
5821 bacpy(&conn->resp_addr, bdaddr);
5823 /* Check if the controller has set a Local RPA then it must be
5824 * used instead or hdev->rpa.
5826 if (local_rpa && bacmp(local_rpa, BDADDR_ANY)) {
5827 conn->init_addr_type = ADDR_LE_DEV_RANDOM;
5828 bacpy(&conn->init_addr, local_rpa);
5829 } else if (hci_dev_test_flag(conn->hdev, HCI_PRIVACY)) {
5830 conn->init_addr_type = ADDR_LE_DEV_RANDOM;
5831 bacpy(&conn->init_addr, &conn->hdev->rpa);
5833 hci_copy_identity_address(conn->hdev, &conn->init_addr,
5834 &conn->init_addr_type);
5837 conn->resp_addr_type = conn->hdev->adv_addr_type;
5838 /* Check if the controller has set a Local RPA then it must be
5839 * used instead or hdev->rpa.
5841 if (local_rpa && bacmp(local_rpa, BDADDR_ANY)) {
5842 conn->resp_addr_type = ADDR_LE_DEV_RANDOM;
5843 bacpy(&conn->resp_addr, local_rpa);
5844 } else if (conn->hdev->adv_addr_type == ADDR_LE_DEV_RANDOM) {
5845 /* In case of ext adv, resp_addr will be updated in
5846 * Adv Terminated event.
5848 if (!ext_adv_capable(conn->hdev))
5849 bacpy(&conn->resp_addr,
5850 &conn->hdev->random_addr);
5852 bacpy(&conn->resp_addr, &conn->hdev->bdaddr);
5855 conn->init_addr_type = bdaddr_type;
5856 bacpy(&conn->init_addr, bdaddr);
5858 /* For incoming connections, set the default minimum
5859 * and maximum connection interval. They will be used
5860 * to check if the parameters are in range and if not
5861 * trigger the connection update procedure.
5863 conn->le_conn_min_interval = conn->hdev->le_conn_min_interval;
5864 conn->le_conn_max_interval = conn->hdev->le_conn_max_interval;
5868 static void le_conn_complete_evt(struct hci_dev *hdev, u8 status,
5869 bdaddr_t *bdaddr, u8 bdaddr_type,
5870 bdaddr_t *local_rpa, u8 role, u16 handle,
5871 u16 interval, u16 latency,
5872 u16 supervision_timeout)
5874 struct hci_conn_params *params;
5875 struct hci_conn *conn;
5876 struct smp_irk *irk;
5881 /* All controllers implicitly stop advertising in the event of a
5882 * connection, so ensure that the state bit is cleared.
5884 hci_dev_clear_flag(hdev, HCI_LE_ADV);
5886 conn = hci_conn_hash_lookup_ba(hdev, LE_LINK, bdaddr);
5888 /* In case of error status and there is no connection pending
5889 * just unlock as there is nothing to cleanup.
5894 conn = hci_conn_add(hdev, LE_LINK, bdaddr, role);
5896 bt_dev_err(hdev, "no memory for new connection");
5900 conn->dst_type = bdaddr_type;
5902 /* If we didn't have a hci_conn object previously
5903 * but we're in central role this must be something
5904 * initiated using an accept list. Since accept list based
5905 * connections are not "first class citizens" we don't
5906 * have full tracking of them. Therefore, we go ahead
5907 * with a "best effort" approach of determining the
5908 * initiator address based on the HCI_PRIVACY flag.
5911 conn->resp_addr_type = bdaddr_type;
5912 bacpy(&conn->resp_addr, bdaddr);
5913 if (hci_dev_test_flag(hdev, HCI_PRIVACY)) {
5914 conn->init_addr_type = ADDR_LE_DEV_RANDOM;
5915 bacpy(&conn->init_addr, &hdev->rpa);
5917 hci_copy_identity_address(hdev,
5919 &conn->init_addr_type);
5923 cancel_delayed_work(&conn->le_conn_timeout);
5926 /* The HCI_LE_Connection_Complete event is only sent once per connection.
5927 * Processing it more than once per connection can corrupt kernel memory.
5929 * As the connection handle is set here for the first time, it indicates
5930 * whether the connection is already set up.
5932 if (!HCI_CONN_HANDLE_UNSET(conn->handle)) {
5933 bt_dev_err(hdev, "Ignoring HCI_Connection_Complete for existing connection");
5937 le_conn_update_addr(conn, bdaddr, bdaddr_type, local_rpa);
5939 /* Lookup the identity address from the stored connection
5940 * address and address type.
5942 * When establishing connections to an identity address, the
5943 * connection procedure will store the resolvable random
5944 * address first. Now if it can be converted back into the
5945 * identity address, start using the identity address from
5948 irk = hci_get_irk(hdev, &conn->dst, conn->dst_type);
5950 bacpy(&conn->dst, &irk->bdaddr);
5951 conn->dst_type = irk->addr_type;
5954 conn->dst_type = ev_bdaddr_type(hdev, conn->dst_type, NULL);
5956 if (handle > HCI_CONN_HANDLE_MAX) {
5957 bt_dev_err(hdev, "Invalid handle: 0x%4.4x > 0x%4.4x", handle,
5958 HCI_CONN_HANDLE_MAX);
5959 status = HCI_ERROR_INVALID_PARAMETERS;
5962 /* All connection failure handling is taken care of by the
5963 * hci_conn_failed function which is triggered by the HCI
5964 * request completion callbacks used for connecting.
5969 /* Drop the connection if it has been aborted */
5970 if (test_bit(HCI_CONN_CANCEL, &conn->flags)) {
5971 hci_conn_drop(conn);
5975 if (conn->dst_type == ADDR_LE_DEV_PUBLIC)
5976 addr_type = BDADDR_LE_PUBLIC;
5978 addr_type = BDADDR_LE_RANDOM;
5980 /* Drop the connection if the device is blocked */
5981 if (hci_bdaddr_list_lookup(&hdev->reject_list, &conn->dst, addr_type)) {
5982 hci_conn_drop(conn);
5986 if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
5987 mgmt_device_connected(hdev, conn, NULL, 0);
5989 conn->sec_level = BT_SECURITY_LOW;
5990 conn->handle = handle;
5991 conn->state = BT_CONFIG;
5993 /* Store current advertising instance as connection advertising instance
5994 * when sotfware rotation is in use so it can be re-enabled when
5997 if (!ext_adv_capable(hdev))
5998 conn->adv_instance = hdev->cur_adv_instance;
6000 conn->le_conn_interval = interval;
6001 conn->le_conn_latency = latency;
6002 conn->le_supv_timeout = supervision_timeout;
6004 hci_debugfs_create_conn(conn);
6005 hci_conn_add_sysfs(conn);
6007 /* The remote features procedure is defined for central
6008 * role only. So only in case of an initiated connection
6009 * request the remote features.
6011 * If the local controller supports peripheral-initiated features
6012 * exchange, then requesting the remote features in peripheral
6013 * role is possible. Otherwise just transition into the
6014 * connected state without requesting the remote features.
6017 (hdev->le_features[0] & HCI_LE_PERIPHERAL_FEATURES)) {
6018 struct hci_cp_le_read_remote_features cp;
6020 cp.handle = __cpu_to_le16(conn->handle);
6022 hci_send_cmd(hdev, HCI_OP_LE_READ_REMOTE_FEATURES,
6025 hci_conn_hold(conn);
6027 conn->state = BT_CONNECTED;
6028 hci_connect_cfm(conn, status);
6031 params = hci_pend_le_action_lookup(&hdev->pend_le_conns, &conn->dst,
6034 hci_pend_le_list_del_init(params);
6036 hci_conn_drop(params->conn);
6037 hci_conn_put(params->conn);
6038 params->conn = NULL;
6043 hci_update_passive_scan(hdev);
6044 hci_dev_unlock(hdev);
6047 static void hci_le_conn_complete_evt(struct hci_dev *hdev, void *data,
6048 struct sk_buff *skb)
6050 struct hci_ev_le_conn_complete *ev = data;
6052 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
6054 le_conn_complete_evt(hdev, ev->status, &ev->bdaddr, ev->bdaddr_type,
6055 NULL, ev->role, le16_to_cpu(ev->handle),
6056 le16_to_cpu(ev->interval),
6057 le16_to_cpu(ev->latency),
6058 le16_to_cpu(ev->supervision_timeout));
6061 static void hci_le_enh_conn_complete_evt(struct hci_dev *hdev, void *data,
6062 struct sk_buff *skb)
6064 struct hci_ev_le_enh_conn_complete *ev = data;
6066 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
6068 le_conn_complete_evt(hdev, ev->status, &ev->bdaddr, ev->bdaddr_type,
6069 &ev->local_rpa, ev->role, le16_to_cpu(ev->handle),
6070 le16_to_cpu(ev->interval),
6071 le16_to_cpu(ev->latency),
6072 le16_to_cpu(ev->supervision_timeout));
6075 static void hci_le_ext_adv_term_evt(struct hci_dev *hdev, void *data,
6076 struct sk_buff *skb)
6078 struct hci_evt_le_ext_adv_set_term *ev = data;
6079 struct hci_conn *conn;
6080 struct adv_info *adv, *n;
6082 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
6084 /* The Bluetooth Core 5.3 specification clearly states that this event
6085 * shall not be sent when the Host disables the advertising set. So in
6086 * case of HCI_ERROR_CANCELLED_BY_HOST, just ignore the event.
6088 * When the Host disables an advertising set, all cleanup is done via
6089 * its command callback and not needed to be duplicated here.
6091 if (ev->status == HCI_ERROR_CANCELLED_BY_HOST) {
6092 bt_dev_warn_ratelimited(hdev, "Unexpected advertising set terminated event");
6098 adv = hci_find_adv_instance(hdev, ev->handle);
6104 /* Remove advertising as it has been terminated */
6105 hci_remove_adv_instance(hdev, ev->handle);
6106 mgmt_advertising_removed(NULL, hdev, ev->handle);
6108 list_for_each_entry_safe(adv, n, &hdev->adv_instances, list) {
6113 /* We are no longer advertising, clear HCI_LE_ADV */
6114 hci_dev_clear_flag(hdev, HCI_LE_ADV);
6119 adv->enabled = false;
6121 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->conn_handle));
6123 /* Store handle in the connection so the correct advertising
6124 * instance can be re-enabled when disconnected.
6126 conn->adv_instance = ev->handle;
6128 if (hdev->adv_addr_type != ADDR_LE_DEV_RANDOM ||
6129 bacmp(&conn->resp_addr, BDADDR_ANY))
6133 bacpy(&conn->resp_addr, &hdev->random_addr);
6138 bacpy(&conn->resp_addr, &adv->random_addr);
6142 hci_dev_unlock(hdev);
6145 static void hci_le_conn_update_complete_evt(struct hci_dev *hdev, void *data,
6146 struct sk_buff *skb)
6148 struct hci_ev_le_conn_update_complete *ev = data;
6149 struct hci_conn *conn;
6151 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
6158 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
6160 conn->le_conn_interval = le16_to_cpu(ev->interval);
6161 conn->le_conn_latency = le16_to_cpu(ev->latency);
6162 conn->le_supv_timeout = le16_to_cpu(ev->supervision_timeout);
6165 hci_dev_unlock(hdev);
6168 /* This function requires the caller holds hdev->lock */
6169 static struct hci_conn *check_pending_le_conn(struct hci_dev *hdev,
6171 u8 addr_type, bool addr_resolved,
6174 struct hci_conn *conn;
6175 struct hci_conn_params *params;
6177 /* If the event is not connectable don't proceed further */
6178 if (adv_type != LE_ADV_IND && adv_type != LE_ADV_DIRECT_IND)
6181 /* Ignore if the device is blocked or hdev is suspended */
6182 if (hci_bdaddr_list_lookup(&hdev->reject_list, addr, addr_type) ||
6186 /* Most controller will fail if we try to create new connections
6187 * while we have an existing one in peripheral role.
6189 if (hdev->conn_hash.le_num_peripheral > 0 &&
6190 (!test_bit(HCI_QUIRK_VALID_LE_STATES, &hdev->quirks) ||
6191 !(hdev->le_states[3] & 0x10)))
6194 /* If we're not connectable only connect devices that we have in
6195 * our pend_le_conns list.
6197 params = hci_pend_le_action_lookup(&hdev->pend_le_conns, addr,
6202 if (!params->explicit_connect) {
6203 switch (params->auto_connect) {
6204 case HCI_AUTO_CONN_DIRECT:
6205 /* Only devices advertising with ADV_DIRECT_IND are
6206 * triggering a connection attempt. This is allowing
6207 * incoming connections from peripheral devices.
6209 if (adv_type != LE_ADV_DIRECT_IND)
6212 case HCI_AUTO_CONN_ALWAYS:
6213 /* Devices advertising with ADV_IND or ADV_DIRECT_IND
6214 * are triggering a connection attempt. This means
6215 * that incoming connections from peripheral device are
6216 * accepted and also outgoing connections to peripheral
6217 * devices are established when found.
6225 conn = hci_connect_le(hdev, addr, addr_type, addr_resolved,
6226 BT_SECURITY_LOW, hdev->def_le_autoconnect_timeout,
6228 if (!IS_ERR(conn)) {
6229 /* If HCI_AUTO_CONN_EXPLICIT is set, conn is already owned
6230 * by higher layer that tried to connect, if no then
6231 * store the pointer since we don't really have any
6232 * other owner of the object besides the params that
6233 * triggered it. This way we can abort the connection if
6234 * the parameters get removed and keep the reference
6235 * count consistent once the connection is established.
6238 if (!params->explicit_connect)
6239 params->conn = hci_conn_get(conn);
6244 switch (PTR_ERR(conn)) {
6246 /* If hci_connect() returns -EBUSY it means there is already
6247 * an LE connection attempt going on. Since controllers don't
6248 * support more than one connection attempt at the time, we
6249 * don't consider this an error case.
6253 BT_DBG("Failed to connect: err %ld", PTR_ERR(conn));
6260 static void process_adv_report(struct hci_dev *hdev, u8 type, bdaddr_t *bdaddr,
6261 u8 bdaddr_type, bdaddr_t *direct_addr,
6262 u8 direct_addr_type, s8 rssi, u8 *data, u8 len,
6263 bool ext_adv, bool ctl_time, u64 instant)
6265 struct discovery_state *d = &hdev->discovery;
6266 struct smp_irk *irk;
6267 struct hci_conn *conn;
6268 bool match, bdaddr_resolved;
6274 case LE_ADV_DIRECT_IND:
6275 case LE_ADV_SCAN_IND:
6276 case LE_ADV_NONCONN_IND:
6277 case LE_ADV_SCAN_RSP:
6280 bt_dev_err_ratelimited(hdev, "unknown advertising packet "
6281 "type: 0x%02x", type);
6285 if (len > max_adv_len(hdev)) {
6286 bt_dev_err_ratelimited(hdev,
6287 "adv larger than maximum supported");
6291 /* Find the end of the data in case the report contains padded zero
6292 * bytes at the end causing an invalid length value.
6294 * When data is NULL, len is 0 so there is no need for extra ptr
6295 * check as 'ptr < data + 0' is already false in such case.
6297 for (ptr = data; ptr < data + len && *ptr; ptr += *ptr + 1) {
6298 if (ptr + 1 + *ptr > data + len)
6302 /* Adjust for actual length. This handles the case when remote
6303 * device is advertising with incorrect data length.
6307 /* If the direct address is present, then this report is from
6308 * a LE Direct Advertising Report event. In that case it is
6309 * important to see if the address is matching the local
6310 * controller address.
6312 if (!hci_dev_test_flag(hdev, HCI_MESH) && direct_addr) {
6313 direct_addr_type = ev_bdaddr_type(hdev, direct_addr_type,
6316 /* Only resolvable random addresses are valid for these
6317 * kind of reports and others can be ignored.
6319 if (!hci_bdaddr_is_rpa(direct_addr, direct_addr_type))
6322 /* If the controller is not using resolvable random
6323 * addresses, then this report can be ignored.
6325 if (!hci_dev_test_flag(hdev, HCI_PRIVACY))
6328 /* If the local IRK of the controller does not match
6329 * with the resolvable random address provided, then
6330 * this report can be ignored.
6332 if (!smp_irk_matches(hdev, hdev->irk, direct_addr))
6336 /* Check if we need to convert to identity address */
6337 irk = hci_get_irk(hdev, bdaddr, bdaddr_type);
6339 bdaddr = &irk->bdaddr;
6340 bdaddr_type = irk->addr_type;
6343 bdaddr_type = ev_bdaddr_type(hdev, bdaddr_type, &bdaddr_resolved);
6345 /* Check if we have been requested to connect to this device.
6347 * direct_addr is set only for directed advertising reports (it is NULL
6348 * for advertising reports) and is already verified to be RPA above.
6350 conn = check_pending_le_conn(hdev, bdaddr, bdaddr_type, bdaddr_resolved,
6352 if (!ext_adv && conn && type == LE_ADV_IND &&
6353 len <= max_adv_len(hdev)) {
6354 /* Store report for later inclusion by
6355 * mgmt_device_connected
6357 memcpy(conn->le_adv_data, data, len);
6358 conn->le_adv_data_len = len;
6361 if (type == LE_ADV_NONCONN_IND || type == LE_ADV_SCAN_IND)
6362 flags = MGMT_DEV_FOUND_NOT_CONNECTABLE;
6366 /* All scan results should be sent up for Mesh systems */
6367 if (hci_dev_test_flag(hdev, HCI_MESH)) {
6368 mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL,
6369 rssi, flags, data, len, NULL, 0, instant);
6373 /* Passive scanning shouldn't trigger any device found events,
6374 * except for devices marked as CONN_REPORT for which we do send
6375 * device found events, or advertisement monitoring requested.
6377 if (hdev->le_scan_type == LE_SCAN_PASSIVE) {
6378 if (type == LE_ADV_DIRECT_IND)
6381 if (!hci_pend_le_action_lookup(&hdev->pend_le_reports,
6382 bdaddr, bdaddr_type) &&
6383 idr_is_empty(&hdev->adv_monitors_idr))
6386 mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL,
6387 rssi, flags, data, len, NULL, 0, 0);
6391 /* When receiving a scan response, then there is no way to
6392 * know if the remote device is connectable or not. However
6393 * since scan responses are merged with a previously seen
6394 * advertising report, the flags field from that report
6397 * In the unlikely case that a controller just sends a scan
6398 * response event that doesn't match the pending report, then
6399 * it is marked as a standalone SCAN_RSP.
6401 if (type == LE_ADV_SCAN_RSP)
6402 flags = MGMT_DEV_FOUND_SCAN_RSP;
6404 /* If there's nothing pending either store the data from this
6405 * event or send an immediate device found event if the data
6406 * should not be stored for later.
6408 if (!ext_adv && !has_pending_adv_report(hdev)) {
6409 /* If the report will trigger a SCAN_REQ store it for
6412 if (type == LE_ADV_IND || type == LE_ADV_SCAN_IND) {
6413 store_pending_adv_report(hdev, bdaddr, bdaddr_type,
6414 rssi, flags, data, len);
6418 mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL,
6419 rssi, flags, data, len, NULL, 0, 0);
6423 /* Check if the pending report is for the same device as the new one */
6424 match = (!bacmp(bdaddr, &d->last_adv_addr) &&
6425 bdaddr_type == d->last_adv_addr_type);
6427 /* If the pending data doesn't match this report or this isn't a
6428 * scan response (e.g. we got a duplicate ADV_IND) then force
6429 * sending of the pending data.
6431 if (type != LE_ADV_SCAN_RSP || !match) {
6432 /* Send out whatever is in the cache, but skip duplicates */
6434 mgmt_device_found(hdev, &d->last_adv_addr, LE_LINK,
6435 d->last_adv_addr_type, NULL,
6436 d->last_adv_rssi, d->last_adv_flags,
6438 d->last_adv_data_len, NULL, 0, 0);
6440 /* If the new report will trigger a SCAN_REQ store it for
6443 if (!ext_adv && (type == LE_ADV_IND ||
6444 type == LE_ADV_SCAN_IND)) {
6445 store_pending_adv_report(hdev, bdaddr, bdaddr_type,
6446 rssi, flags, data, len);
6450 /* The advertising reports cannot be merged, so clear
6451 * the pending report and send out a device found event.
6453 clear_pending_adv_report(hdev);
6454 mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL,
6455 rssi, flags, data, len, NULL, 0, 0);
6459 /* If we get here we've got a pending ADV_IND or ADV_SCAN_IND and
6460 * the new event is a SCAN_RSP. We can therefore proceed with
6461 * sending a merged device found event.
6463 mgmt_device_found(hdev, &d->last_adv_addr, LE_LINK,
6464 d->last_adv_addr_type, NULL, rssi, d->last_adv_flags,
6465 d->last_adv_data, d->last_adv_data_len, data, len, 0);
6466 clear_pending_adv_report(hdev);
6469 static void hci_le_adv_report_evt(struct hci_dev *hdev, void *data,
6470 struct sk_buff *skb)
6472 struct hci_ev_le_advertising_report *ev = data;
6473 u64 instant = jiffies;
6481 struct hci_ev_le_advertising_info *info;
6484 info = hci_le_ev_skb_pull(hdev, skb,
6485 HCI_EV_LE_ADVERTISING_REPORT,
6490 if (!hci_le_ev_skb_pull(hdev, skb, HCI_EV_LE_ADVERTISING_REPORT,
6494 if (info->length <= max_adv_len(hdev)) {
6495 rssi = info->data[info->length];
6496 process_adv_report(hdev, info->type, &info->bdaddr,
6497 info->bdaddr_type, NULL, 0, rssi,
6498 info->data, info->length, false,
6501 bt_dev_err(hdev, "Dropping invalid advertising data");
6505 hci_dev_unlock(hdev);
6508 static u8 ext_evt_type_to_legacy(struct hci_dev *hdev, u16 evt_type)
6510 if (evt_type & LE_EXT_ADV_LEGACY_PDU) {
6512 case LE_LEGACY_ADV_IND:
6514 case LE_LEGACY_ADV_DIRECT_IND:
6515 return LE_ADV_DIRECT_IND;
6516 case LE_LEGACY_ADV_SCAN_IND:
6517 return LE_ADV_SCAN_IND;
6518 case LE_LEGACY_NONCONN_IND:
6519 return LE_ADV_NONCONN_IND;
6520 case LE_LEGACY_SCAN_RSP_ADV:
6521 case LE_LEGACY_SCAN_RSP_ADV_SCAN:
6522 return LE_ADV_SCAN_RSP;
6528 if (evt_type & LE_EXT_ADV_CONN_IND) {
6529 if (evt_type & LE_EXT_ADV_DIRECT_IND)
6530 return LE_ADV_DIRECT_IND;
6535 if (evt_type & LE_EXT_ADV_SCAN_RSP)
6536 return LE_ADV_SCAN_RSP;
6538 if (evt_type & LE_EXT_ADV_SCAN_IND)
6539 return LE_ADV_SCAN_IND;
6541 if (evt_type == LE_EXT_ADV_NON_CONN_IND ||
6542 evt_type & LE_EXT_ADV_DIRECT_IND)
6543 return LE_ADV_NONCONN_IND;
6546 bt_dev_err_ratelimited(hdev, "Unknown advertising packet type: 0x%02x",
6549 return LE_ADV_INVALID;
6552 static void hci_le_ext_adv_report_evt(struct hci_dev *hdev, void *data,
6553 struct sk_buff *skb)
6555 struct hci_ev_le_ext_adv_report *ev = data;
6556 u64 instant = jiffies;
6564 struct hci_ev_le_ext_adv_info *info;
6568 info = hci_le_ev_skb_pull(hdev, skb, HCI_EV_LE_EXT_ADV_REPORT,
6573 if (!hci_le_ev_skb_pull(hdev, skb, HCI_EV_LE_EXT_ADV_REPORT,
6577 evt_type = __le16_to_cpu(info->type) & LE_EXT_ADV_EVT_TYPE_MASK;
6578 legacy_evt_type = ext_evt_type_to_legacy(hdev, evt_type);
6579 if (legacy_evt_type != LE_ADV_INVALID) {
6580 process_adv_report(hdev, legacy_evt_type, &info->bdaddr,
6581 info->bdaddr_type, NULL, 0,
6582 info->rssi, info->data, info->length,
6583 !(evt_type & LE_EXT_ADV_LEGACY_PDU),
6588 hci_dev_unlock(hdev);
6591 static int hci_le_pa_term_sync(struct hci_dev *hdev, __le16 handle)
6593 struct hci_cp_le_pa_term_sync cp;
6595 memset(&cp, 0, sizeof(cp));
6598 return hci_send_cmd(hdev, HCI_OP_LE_PA_TERM_SYNC, sizeof(cp), &cp);
6601 static void hci_le_pa_sync_estabilished_evt(struct hci_dev *hdev, void *data,
6602 struct sk_buff *skb)
6604 struct hci_ev_le_pa_sync_established *ev = data;
6605 int mask = hdev->link_mode;
6607 struct hci_conn *bis;
6609 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
6613 hci_dev_clear_flag(hdev, HCI_PA_SYNC);
6615 mask |= hci_proto_connect_ind(hdev, &ev->bdaddr, ISO_LINK, &flags);
6616 if (!(mask & HCI_LM_ACCEPT)) {
6617 hci_le_pa_term_sync(hdev, ev->handle);
6621 if (!(flags & HCI_PROTO_DEFER))
6624 /* Add connection to indicate the PA sync event */
6625 bis = hci_conn_add(hdev, ISO_LINK, BDADDR_ANY,
6632 set_bit(HCI_CONN_PA_SYNC_FAILED, &bis->flags);
6634 set_bit(HCI_CONN_PA_SYNC, &bis->flags);
6636 /* Notify connection to iso layer */
6637 hci_connect_cfm(bis, ev->status);
6640 hci_dev_unlock(hdev);
6643 static void hci_le_per_adv_report_evt(struct hci_dev *hdev, void *data,
6644 struct sk_buff *skb)
6646 struct hci_ev_le_per_adv_report *ev = data;
6647 int mask = hdev->link_mode;
6650 bt_dev_dbg(hdev, "sync_handle 0x%4.4x", le16_to_cpu(ev->sync_handle));
6654 mask |= hci_proto_connect_ind(hdev, BDADDR_ANY, ISO_LINK, &flags);
6655 if (!(mask & HCI_LM_ACCEPT))
6656 hci_le_pa_term_sync(hdev, ev->sync_handle);
6658 hci_dev_unlock(hdev);
6661 static void hci_le_remote_feat_complete_evt(struct hci_dev *hdev, void *data,
6662 struct sk_buff *skb)
6664 struct hci_ev_le_remote_feat_complete *ev = data;
6665 struct hci_conn *conn;
6667 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
6671 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
6674 memcpy(conn->features[0], ev->features, 8);
6676 if (conn->state == BT_CONFIG) {
6679 /* If the local controller supports peripheral-initiated
6680 * features exchange, but the remote controller does
6681 * not, then it is possible that the error code 0x1a
6682 * for unsupported remote feature gets returned.
6684 * In this specific case, allow the connection to
6685 * transition into connected state and mark it as
6688 if (!conn->out && ev->status == 0x1a &&
6689 (hdev->le_features[0] & HCI_LE_PERIPHERAL_FEATURES))
6692 status = ev->status;
6694 conn->state = BT_CONNECTED;
6695 hci_connect_cfm(conn, status);
6696 hci_conn_drop(conn);
6700 hci_dev_unlock(hdev);
6703 static void hci_le_ltk_request_evt(struct hci_dev *hdev, void *data,
6704 struct sk_buff *skb)
6706 struct hci_ev_le_ltk_req *ev = data;
6707 struct hci_cp_le_ltk_reply cp;
6708 struct hci_cp_le_ltk_neg_reply neg;
6709 struct hci_conn *conn;
6710 struct smp_ltk *ltk;
6712 bt_dev_dbg(hdev, "handle 0x%4.4x", __le16_to_cpu(ev->handle));
6716 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
6720 ltk = hci_find_ltk(hdev, &conn->dst, conn->dst_type, conn->role);
6724 if (smp_ltk_is_sc(ltk)) {
6725 /* With SC both EDiv and Rand are set to zero */
6726 if (ev->ediv || ev->rand)
6729 /* For non-SC keys check that EDiv and Rand match */
6730 if (ev->ediv != ltk->ediv || ev->rand != ltk->rand)
6734 memcpy(cp.ltk, ltk->val, ltk->enc_size);
6735 memset(cp.ltk + ltk->enc_size, 0, sizeof(cp.ltk) - ltk->enc_size);
6736 cp.handle = cpu_to_le16(conn->handle);
6738 conn->pending_sec_level = smp_ltk_sec_level(ltk);
6740 conn->enc_key_size = ltk->enc_size;
6742 hci_send_cmd(hdev, HCI_OP_LE_LTK_REPLY, sizeof(cp), &cp);
6744 /* Ref. Bluetooth Core SPEC pages 1975 and 2004. STK is a
6745 * temporary key used to encrypt a connection following
6746 * pairing. It is used during the Encrypted Session Setup to
6747 * distribute the keys. Later, security can be re-established
6748 * using a distributed LTK.
6750 if (ltk->type == SMP_STK) {
6751 set_bit(HCI_CONN_STK_ENCRYPT, &conn->flags);
6752 list_del_rcu(<k->list);
6753 kfree_rcu(ltk, rcu);
6755 clear_bit(HCI_CONN_STK_ENCRYPT, &conn->flags);
6758 hci_dev_unlock(hdev);
6763 neg.handle = ev->handle;
6764 hci_send_cmd(hdev, HCI_OP_LE_LTK_NEG_REPLY, sizeof(neg), &neg);
6765 hci_dev_unlock(hdev);
6768 static void send_conn_param_neg_reply(struct hci_dev *hdev, u16 handle,
6771 struct hci_cp_le_conn_param_req_neg_reply cp;
6773 cp.handle = cpu_to_le16(handle);
6776 hci_send_cmd(hdev, HCI_OP_LE_CONN_PARAM_REQ_NEG_REPLY, sizeof(cp),
6780 static void hci_le_remote_conn_param_req_evt(struct hci_dev *hdev, void *data,
6781 struct sk_buff *skb)
6783 struct hci_ev_le_remote_conn_param_req *ev = data;
6784 struct hci_cp_le_conn_param_req_reply cp;
6785 struct hci_conn *hcon;
6786 u16 handle, min, max, latency, timeout;
6788 bt_dev_dbg(hdev, "handle 0x%4.4x", __le16_to_cpu(ev->handle));
6790 handle = le16_to_cpu(ev->handle);
6791 min = le16_to_cpu(ev->interval_min);
6792 max = le16_to_cpu(ev->interval_max);
6793 latency = le16_to_cpu(ev->latency);
6794 timeout = le16_to_cpu(ev->timeout);
6796 hcon = hci_conn_hash_lookup_handle(hdev, handle);
6797 if (!hcon || hcon->state != BT_CONNECTED)
6798 return send_conn_param_neg_reply(hdev, handle,
6799 HCI_ERROR_UNKNOWN_CONN_ID);
6801 if (hci_check_conn_params(min, max, latency, timeout))
6802 return send_conn_param_neg_reply(hdev, handle,
6803 HCI_ERROR_INVALID_LL_PARAMS);
6805 if (hcon->role == HCI_ROLE_MASTER) {
6806 struct hci_conn_params *params;
6811 params = hci_conn_params_lookup(hdev, &hcon->dst,
6814 params->conn_min_interval = min;
6815 params->conn_max_interval = max;
6816 params->conn_latency = latency;
6817 params->supervision_timeout = timeout;
6823 hci_dev_unlock(hdev);
6825 mgmt_new_conn_param(hdev, &hcon->dst, hcon->dst_type,
6826 store_hint, min, max, latency, timeout);
6829 cp.handle = ev->handle;
6830 cp.interval_min = ev->interval_min;
6831 cp.interval_max = ev->interval_max;
6832 cp.latency = ev->latency;
6833 cp.timeout = ev->timeout;
6837 hci_send_cmd(hdev, HCI_OP_LE_CONN_PARAM_REQ_REPLY, sizeof(cp), &cp);
6840 static void hci_le_direct_adv_report_evt(struct hci_dev *hdev, void *data,
6841 struct sk_buff *skb)
6843 struct hci_ev_le_direct_adv_report *ev = data;
6844 u64 instant = jiffies;
6847 if (!hci_le_ev_skb_pull(hdev, skb, HCI_EV_LE_DIRECT_ADV_REPORT,
6848 flex_array_size(ev, info, ev->num)))
6856 for (i = 0; i < ev->num; i++) {
6857 struct hci_ev_le_direct_adv_info *info = &ev->info[i];
6859 process_adv_report(hdev, info->type, &info->bdaddr,
6860 info->bdaddr_type, &info->direct_addr,
6861 info->direct_addr_type, info->rssi, NULL, 0,
6862 false, false, instant);
6865 hci_dev_unlock(hdev);
6868 static void hci_le_phy_update_evt(struct hci_dev *hdev, void *data,
6869 struct sk_buff *skb)
6871 struct hci_ev_le_phy_update_complete *ev = data;
6872 struct hci_conn *conn;
6874 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
6881 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
6885 conn->le_tx_phy = ev->tx_phy;
6886 conn->le_rx_phy = ev->rx_phy;
6889 hci_dev_unlock(hdev);
6892 static void hci_le_cis_estabilished_evt(struct hci_dev *hdev, void *data,
6893 struct sk_buff *skb)
6895 struct hci_evt_le_cis_established *ev = data;
6896 struct hci_conn *conn;
6897 struct bt_iso_qos *qos;
6898 bool pending = false;
6899 u16 handle = __le16_to_cpu(ev->handle);
6901 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
6905 conn = hci_conn_hash_lookup_handle(hdev, handle);
6908 "Unable to find connection with handle 0x%4.4x",
6913 if (conn->type != ISO_LINK) {
6915 "Invalid connection link type handle 0x%4.4x",
6920 qos = &conn->iso_qos;
6922 pending = test_and_clear_bit(HCI_CONN_CREATE_CIS, &conn->flags);
6924 /* Convert ISO Interval (1.25 ms slots) to SDU Interval (us) */
6925 qos->ucast.in.interval = le16_to_cpu(ev->interval) * 1250;
6926 qos->ucast.out.interval = qos->ucast.in.interval;
6928 switch (conn->role) {
6929 case HCI_ROLE_SLAVE:
6930 /* Convert Transport Latency (us) to Latency (msec) */
6931 qos->ucast.in.latency =
6932 DIV_ROUND_CLOSEST(get_unaligned_le24(ev->c_latency),
6934 qos->ucast.out.latency =
6935 DIV_ROUND_CLOSEST(get_unaligned_le24(ev->p_latency),
6937 qos->ucast.in.sdu = le16_to_cpu(ev->c_mtu);
6938 qos->ucast.out.sdu = le16_to_cpu(ev->p_mtu);
6939 qos->ucast.in.phy = ev->c_phy;
6940 qos->ucast.out.phy = ev->p_phy;
6942 case HCI_ROLE_MASTER:
6943 /* Convert Transport Latency (us) to Latency (msec) */
6944 qos->ucast.out.latency =
6945 DIV_ROUND_CLOSEST(get_unaligned_le24(ev->c_latency),
6947 qos->ucast.in.latency =
6948 DIV_ROUND_CLOSEST(get_unaligned_le24(ev->p_latency),
6950 qos->ucast.out.sdu = le16_to_cpu(ev->c_mtu);
6951 qos->ucast.in.sdu = le16_to_cpu(ev->p_mtu);
6952 qos->ucast.out.phy = ev->c_phy;
6953 qos->ucast.in.phy = ev->p_phy;
6958 conn->state = BT_CONNECTED;
6959 hci_debugfs_create_conn(conn);
6960 hci_conn_add_sysfs(conn);
6961 hci_iso_setup_path(conn);
6965 conn->state = BT_CLOSED;
6966 hci_connect_cfm(conn, ev->status);
6971 hci_le_create_cis_pending(hdev);
6973 hci_dev_unlock(hdev);
6976 static void hci_le_reject_cis(struct hci_dev *hdev, __le16 handle)
6978 struct hci_cp_le_reject_cis cp;
6980 memset(&cp, 0, sizeof(cp));
6982 cp.reason = HCI_ERROR_REJ_BAD_ADDR;
6983 hci_send_cmd(hdev, HCI_OP_LE_REJECT_CIS, sizeof(cp), &cp);
6986 static void hci_le_accept_cis(struct hci_dev *hdev, __le16 handle)
6988 struct hci_cp_le_accept_cis cp;
6990 memset(&cp, 0, sizeof(cp));
6992 hci_send_cmd(hdev, HCI_OP_LE_ACCEPT_CIS, sizeof(cp), &cp);
6995 static void hci_le_cis_req_evt(struct hci_dev *hdev, void *data,
6996 struct sk_buff *skb)
6998 struct hci_evt_le_cis_req *ev = data;
6999 u16 acl_handle, cis_handle;
7000 struct hci_conn *acl, *cis;
7004 acl_handle = __le16_to_cpu(ev->acl_handle);
7005 cis_handle = __le16_to_cpu(ev->cis_handle);
7007 bt_dev_dbg(hdev, "acl 0x%4.4x handle 0x%4.4x cig 0x%2.2x cis 0x%2.2x",
7008 acl_handle, cis_handle, ev->cig_id, ev->cis_id);
7012 acl = hci_conn_hash_lookup_handle(hdev, acl_handle);
7016 mask = hci_proto_connect_ind(hdev, &acl->dst, ISO_LINK, &flags);
7017 if (!(mask & HCI_LM_ACCEPT)) {
7018 hci_le_reject_cis(hdev, ev->cis_handle);
7022 cis = hci_conn_hash_lookup_handle(hdev, cis_handle);
7024 cis = hci_conn_add(hdev, ISO_LINK, &acl->dst, HCI_ROLE_SLAVE);
7026 hci_le_reject_cis(hdev, ev->cis_handle);
7029 cis->handle = cis_handle;
7032 cis->iso_qos.ucast.cig = ev->cig_id;
7033 cis->iso_qos.ucast.cis = ev->cis_id;
7035 if (!(flags & HCI_PROTO_DEFER)) {
7036 hci_le_accept_cis(hdev, ev->cis_handle);
7038 cis->state = BT_CONNECT2;
7039 hci_connect_cfm(cis, 0);
7043 hci_dev_unlock(hdev);
7046 static int hci_iso_term_big_sync(struct hci_dev *hdev, void *data)
7048 u8 handle = PTR_UINT(data);
7050 return hci_le_terminate_big_sync(hdev, handle,
7051 HCI_ERROR_LOCAL_HOST_TERM);
7054 static void hci_le_create_big_complete_evt(struct hci_dev *hdev, void *data,
7055 struct sk_buff *skb)
7057 struct hci_evt_le_create_big_complete *ev = data;
7058 struct hci_conn *conn;
7061 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
7063 if (!hci_le_ev_skb_pull(hdev, skb, HCI_EVT_LE_CREATE_BIG_COMPLETE,
7064 flex_array_size(ev, bis_handle, ev->num_bis)))
7070 /* Connect all BISes that are bound to the BIG */
7071 list_for_each_entry_rcu(conn, &hdev->conn_hash.list, list) {
7072 if (bacmp(&conn->dst, BDADDR_ANY) ||
7073 conn->type != ISO_LINK ||
7074 conn->iso_qos.bcast.big != ev->handle)
7077 if (hci_conn_set_handle(conn,
7078 __le16_to_cpu(ev->bis_handle[i++])))
7082 conn->state = BT_CONNECTED;
7083 set_bit(HCI_CONN_BIG_CREATED, &conn->flags);
7085 hci_debugfs_create_conn(conn);
7086 hci_conn_add_sysfs(conn);
7087 hci_iso_setup_path(conn);
7092 hci_connect_cfm(conn, ev->status);
7100 if (!ev->status && !i)
7101 /* If no BISes have been connected for the BIG,
7102 * terminate. This is in case all bound connections
7103 * have been closed before the BIG creation
7106 hci_cmd_sync_queue(hdev, hci_iso_term_big_sync,
7107 UINT_PTR(ev->handle), NULL);
7109 hci_dev_unlock(hdev);
7112 static void hci_le_big_sync_established_evt(struct hci_dev *hdev, void *data,
7113 struct sk_buff *skb)
7115 struct hci_evt_le_big_sync_estabilished *ev = data;
7116 struct hci_conn *bis;
7117 struct hci_conn *pa_sync;
7120 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
7122 if (!hci_le_ev_skb_pull(hdev, skb, HCI_EVT_LE_BIG_SYNC_ESTABILISHED,
7123 flex_array_size(ev, bis, ev->num_bis)))
7129 pa_sync = hci_conn_hash_lookup_pa_sync(hdev, ev->handle);
7131 /* Also mark the BIG sync established event on the
7132 * associated PA sync hcon
7134 set_bit(HCI_CONN_BIG_SYNC, &pa_sync->flags);
7137 for (i = 0; i < ev->num_bis; i++) {
7138 u16 handle = le16_to_cpu(ev->bis[i]);
7141 bis = hci_conn_hash_lookup_handle(hdev, handle);
7143 bis = hci_conn_add(hdev, ISO_LINK, BDADDR_ANY,
7147 bis->handle = handle;
7150 if (ev->status != 0x42)
7151 /* Mark PA sync as established */
7152 set_bit(HCI_CONN_PA_SYNC, &bis->flags);
7154 bis->iso_qos.bcast.big = ev->handle;
7155 memset(&interval, 0, sizeof(interval));
7156 memcpy(&interval, ev->latency, sizeof(ev->latency));
7157 bis->iso_qos.bcast.in.interval = le32_to_cpu(interval);
7158 /* Convert ISO Interval (1.25 ms slots) to latency (ms) */
7159 bis->iso_qos.bcast.in.latency = le16_to_cpu(ev->interval) * 125 / 100;
7160 bis->iso_qos.bcast.in.sdu = le16_to_cpu(ev->max_pdu);
7163 set_bit(HCI_CONN_BIG_SYNC, &bis->flags);
7164 hci_iso_setup_path(bis);
7168 /* In case BIG sync failed, notify each failed connection to
7169 * the user after all hci connections have been added
7172 for (i = 0; i < ev->num_bis; i++) {
7173 u16 handle = le16_to_cpu(ev->bis[i]);
7175 bis = hci_conn_hash_lookup_handle(hdev, handle);
7177 set_bit(HCI_CONN_BIG_SYNC_FAILED, &bis->flags);
7178 hci_connect_cfm(bis, ev->status);
7181 hci_dev_unlock(hdev);
7184 static void hci_le_big_info_adv_report_evt(struct hci_dev *hdev, void *data,
7185 struct sk_buff *skb)
7187 struct hci_evt_le_big_info_adv_report *ev = data;
7188 int mask = hdev->link_mode;
7191 bt_dev_dbg(hdev, "sync_handle 0x%4.4x", le16_to_cpu(ev->sync_handle));
7195 mask |= hci_proto_connect_ind(hdev, BDADDR_ANY, ISO_LINK, &flags);
7196 if (!(mask & HCI_LM_ACCEPT))
7197 hci_le_pa_term_sync(hdev, ev->sync_handle);
7199 hci_dev_unlock(hdev);
7202 #define HCI_LE_EV_VL(_op, _func, _min_len, _max_len) \
7205 .min_len = _min_len, \
7206 .max_len = _max_len, \
7209 #define HCI_LE_EV(_op, _func, _len) \
7210 HCI_LE_EV_VL(_op, _func, _len, _len)
7212 #define HCI_LE_EV_STATUS(_op, _func) \
7213 HCI_LE_EV(_op, _func, sizeof(struct hci_ev_status))
7215 /* Entries in this table shall have their position according to the subevent
7216 * opcode they handle so the use of the macros above is recommend since it does
7217 * attempt to initialize at its proper index using Designated Initializers that
7218 * way events without a callback function can be ommited.
7220 static const struct hci_le_ev {
7221 void (*func)(struct hci_dev *hdev, void *data, struct sk_buff *skb);
7224 } hci_le_ev_table[U8_MAX + 1] = {
7225 /* [0x01 = HCI_EV_LE_CONN_COMPLETE] */
7226 HCI_LE_EV(HCI_EV_LE_CONN_COMPLETE, hci_le_conn_complete_evt,
7227 sizeof(struct hci_ev_le_conn_complete)),
7228 /* [0x02 = HCI_EV_LE_ADVERTISING_REPORT] */
7229 HCI_LE_EV_VL(HCI_EV_LE_ADVERTISING_REPORT, hci_le_adv_report_evt,
7230 sizeof(struct hci_ev_le_advertising_report),
7231 HCI_MAX_EVENT_SIZE),
7232 /* [0x03 = HCI_EV_LE_CONN_UPDATE_COMPLETE] */
7233 HCI_LE_EV(HCI_EV_LE_CONN_UPDATE_COMPLETE,
7234 hci_le_conn_update_complete_evt,
7235 sizeof(struct hci_ev_le_conn_update_complete)),
7236 /* [0x04 = HCI_EV_LE_REMOTE_FEAT_COMPLETE] */
7237 HCI_LE_EV(HCI_EV_LE_REMOTE_FEAT_COMPLETE,
7238 hci_le_remote_feat_complete_evt,
7239 sizeof(struct hci_ev_le_remote_feat_complete)),
7240 /* [0x05 = HCI_EV_LE_LTK_REQ] */
7241 HCI_LE_EV(HCI_EV_LE_LTK_REQ, hci_le_ltk_request_evt,
7242 sizeof(struct hci_ev_le_ltk_req)),
7243 /* [0x06 = HCI_EV_LE_REMOTE_CONN_PARAM_REQ] */
7244 HCI_LE_EV(HCI_EV_LE_REMOTE_CONN_PARAM_REQ,
7245 hci_le_remote_conn_param_req_evt,
7246 sizeof(struct hci_ev_le_remote_conn_param_req)),
7247 /* [0x0a = HCI_EV_LE_ENHANCED_CONN_COMPLETE] */
7248 HCI_LE_EV(HCI_EV_LE_ENHANCED_CONN_COMPLETE,
7249 hci_le_enh_conn_complete_evt,
7250 sizeof(struct hci_ev_le_enh_conn_complete)),
7251 /* [0x0b = HCI_EV_LE_DIRECT_ADV_REPORT] */
7252 HCI_LE_EV_VL(HCI_EV_LE_DIRECT_ADV_REPORT, hci_le_direct_adv_report_evt,
7253 sizeof(struct hci_ev_le_direct_adv_report),
7254 HCI_MAX_EVENT_SIZE),
7255 /* [0x0c = HCI_EV_LE_PHY_UPDATE_COMPLETE] */
7256 HCI_LE_EV(HCI_EV_LE_PHY_UPDATE_COMPLETE, hci_le_phy_update_evt,
7257 sizeof(struct hci_ev_le_phy_update_complete)),
7258 /* [0x0d = HCI_EV_LE_EXT_ADV_REPORT] */
7259 HCI_LE_EV_VL(HCI_EV_LE_EXT_ADV_REPORT, hci_le_ext_adv_report_evt,
7260 sizeof(struct hci_ev_le_ext_adv_report),
7261 HCI_MAX_EVENT_SIZE),
7262 /* [0x0e = HCI_EV_LE_PA_SYNC_ESTABLISHED] */
7263 HCI_LE_EV(HCI_EV_LE_PA_SYNC_ESTABLISHED,
7264 hci_le_pa_sync_estabilished_evt,
7265 sizeof(struct hci_ev_le_pa_sync_established)),
7266 /* [0x0f = HCI_EV_LE_PER_ADV_REPORT] */
7267 HCI_LE_EV_VL(HCI_EV_LE_PER_ADV_REPORT,
7268 hci_le_per_adv_report_evt,
7269 sizeof(struct hci_ev_le_per_adv_report),
7270 HCI_MAX_EVENT_SIZE),
7271 /* [0x12 = HCI_EV_LE_EXT_ADV_SET_TERM] */
7272 HCI_LE_EV(HCI_EV_LE_EXT_ADV_SET_TERM, hci_le_ext_adv_term_evt,
7273 sizeof(struct hci_evt_le_ext_adv_set_term)),
7274 /* [0x19 = HCI_EVT_LE_CIS_ESTABLISHED] */
7275 HCI_LE_EV(HCI_EVT_LE_CIS_ESTABLISHED, hci_le_cis_estabilished_evt,
7276 sizeof(struct hci_evt_le_cis_established)),
7277 /* [0x1a = HCI_EVT_LE_CIS_REQ] */
7278 HCI_LE_EV(HCI_EVT_LE_CIS_REQ, hci_le_cis_req_evt,
7279 sizeof(struct hci_evt_le_cis_req)),
7280 /* [0x1b = HCI_EVT_LE_CREATE_BIG_COMPLETE] */
7281 HCI_LE_EV_VL(HCI_EVT_LE_CREATE_BIG_COMPLETE,
7282 hci_le_create_big_complete_evt,
7283 sizeof(struct hci_evt_le_create_big_complete),
7284 HCI_MAX_EVENT_SIZE),
7285 /* [0x1d = HCI_EV_LE_BIG_SYNC_ESTABILISHED] */
7286 HCI_LE_EV_VL(HCI_EVT_LE_BIG_SYNC_ESTABILISHED,
7287 hci_le_big_sync_established_evt,
7288 sizeof(struct hci_evt_le_big_sync_estabilished),
7289 HCI_MAX_EVENT_SIZE),
7290 /* [0x22 = HCI_EVT_LE_BIG_INFO_ADV_REPORT] */
7291 HCI_LE_EV_VL(HCI_EVT_LE_BIG_INFO_ADV_REPORT,
7292 hci_le_big_info_adv_report_evt,
7293 sizeof(struct hci_evt_le_big_info_adv_report),
7294 HCI_MAX_EVENT_SIZE),
7297 static void hci_le_meta_evt(struct hci_dev *hdev, void *data,
7298 struct sk_buff *skb, u16 *opcode, u8 *status,
7299 hci_req_complete_t *req_complete,
7300 hci_req_complete_skb_t *req_complete_skb)
7302 struct hci_ev_le_meta *ev = data;
7303 const struct hci_le_ev *subev;
7305 bt_dev_dbg(hdev, "subevent 0x%2.2x", ev->subevent);
7307 /* Only match event if command OGF is for LE */
7308 if (hdev->sent_cmd &&
7309 hci_opcode_ogf(hci_skb_opcode(hdev->sent_cmd)) == 0x08 &&
7310 hci_skb_event(hdev->sent_cmd) == ev->subevent) {
7311 *opcode = hci_skb_opcode(hdev->sent_cmd);
7312 hci_req_cmd_complete(hdev, *opcode, 0x00, req_complete,
7316 subev = &hci_le_ev_table[ev->subevent];
7320 if (skb->len < subev->min_len) {
7321 bt_dev_err(hdev, "unexpected subevent 0x%2.2x length: %u < %u",
7322 ev->subevent, skb->len, subev->min_len);
7326 /* Just warn if the length is over max_len size it still be
7327 * possible to partially parse the event so leave to callback to
7328 * decide if that is acceptable.
7330 if (skb->len > subev->max_len)
7331 bt_dev_warn(hdev, "unexpected subevent 0x%2.2x length: %u > %u",
7332 ev->subevent, skb->len, subev->max_len);
7333 data = hci_le_ev_skb_pull(hdev, skb, ev->subevent, subev->min_len);
7337 subev->func(hdev, data, skb);
7340 static bool hci_get_cmd_complete(struct hci_dev *hdev, u16 opcode,
7341 u8 event, struct sk_buff *skb)
7343 struct hci_ev_cmd_complete *ev;
7344 struct hci_event_hdr *hdr;
7349 hdr = hci_ev_skb_pull(hdev, skb, event, sizeof(*hdr));
7354 if (hdr->evt != event)
7359 /* Check if request ended in Command Status - no way to retrieve
7360 * any extra parameters in this case.
7362 if (hdr->evt == HCI_EV_CMD_STATUS)
7365 if (hdr->evt != HCI_EV_CMD_COMPLETE) {
7366 bt_dev_err(hdev, "last event is not cmd complete (0x%2.2x)",
7371 ev = hci_cc_skb_pull(hdev, skb, opcode, sizeof(*ev));
7375 if (opcode != __le16_to_cpu(ev->opcode)) {
7376 BT_DBG("opcode doesn't match (0x%2.2x != 0x%2.2x)", opcode,
7377 __le16_to_cpu(ev->opcode));
7384 static void hci_store_wake_reason(struct hci_dev *hdev, u8 event,
7385 struct sk_buff *skb)
7387 struct hci_ev_le_advertising_info *adv;
7388 struct hci_ev_le_direct_adv_info *direct_adv;
7389 struct hci_ev_le_ext_adv_info *ext_adv;
7390 const struct hci_ev_conn_complete *conn_complete = (void *)skb->data;
7391 const struct hci_ev_conn_request *conn_request = (void *)skb->data;
7395 /* If we are currently suspended and this is the first BT event seen,
7396 * save the wake reason associated with the event.
7398 if (!hdev->suspended || hdev->wake_reason)
7401 /* Default to remote wake. Values for wake_reason are documented in the
7402 * Bluez mgmt api docs.
7404 hdev->wake_reason = MGMT_WAKE_REASON_REMOTE_WAKE;
7406 /* Once configured for remote wakeup, we should only wake up for
7407 * reconnections. It's useful to see which device is waking us up so
7408 * keep track of the bdaddr of the connection event that woke us up.
7410 if (event == HCI_EV_CONN_REQUEST) {
7411 bacpy(&hdev->wake_addr, &conn_complete->bdaddr);
7412 hdev->wake_addr_type = BDADDR_BREDR;
7413 } else if (event == HCI_EV_CONN_COMPLETE) {
7414 bacpy(&hdev->wake_addr, &conn_request->bdaddr);
7415 hdev->wake_addr_type = BDADDR_BREDR;
7416 } else if (event == HCI_EV_LE_META) {
7417 struct hci_ev_le_meta *le_ev = (void *)skb->data;
7418 u8 subevent = le_ev->subevent;
7419 u8 *ptr = &skb->data[sizeof(*le_ev)];
7420 u8 num_reports = *ptr;
7422 if ((subevent == HCI_EV_LE_ADVERTISING_REPORT ||
7423 subevent == HCI_EV_LE_DIRECT_ADV_REPORT ||
7424 subevent == HCI_EV_LE_EXT_ADV_REPORT) &&
7426 adv = (void *)(ptr + 1);
7427 direct_adv = (void *)(ptr + 1);
7428 ext_adv = (void *)(ptr + 1);
7431 case HCI_EV_LE_ADVERTISING_REPORT:
7432 bacpy(&hdev->wake_addr, &adv->bdaddr);
7433 hdev->wake_addr_type = adv->bdaddr_type;
7435 case HCI_EV_LE_DIRECT_ADV_REPORT:
7436 bacpy(&hdev->wake_addr, &direct_adv->bdaddr);
7437 hdev->wake_addr_type = direct_adv->bdaddr_type;
7439 case HCI_EV_LE_EXT_ADV_REPORT:
7440 bacpy(&hdev->wake_addr, &ext_adv->bdaddr);
7441 hdev->wake_addr_type = ext_adv->bdaddr_type;
7446 hdev->wake_reason = MGMT_WAKE_REASON_UNEXPECTED;
7450 hci_dev_unlock(hdev);
7453 #define HCI_EV_VL(_op, _func, _min_len, _max_len) \
7457 .min_len = _min_len, \
7458 .max_len = _max_len, \
7461 #define HCI_EV(_op, _func, _len) \
7462 HCI_EV_VL(_op, _func, _len, _len)
7464 #define HCI_EV_STATUS(_op, _func) \
7465 HCI_EV(_op, _func, sizeof(struct hci_ev_status))
7467 #define HCI_EV_REQ_VL(_op, _func, _min_len, _max_len) \
7470 .func_req = _func, \
7471 .min_len = _min_len, \
7472 .max_len = _max_len, \
7475 #define HCI_EV_REQ(_op, _func, _len) \
7476 HCI_EV_REQ_VL(_op, _func, _len, _len)
7478 /* Entries in this table shall have their position according to the event opcode
7479 * they handle so the use of the macros above is recommend since it does attempt
7480 * to initialize at its proper index using Designated Initializers that way
7481 * events without a callback function don't have entered.
7483 static const struct hci_ev {
7486 void (*func)(struct hci_dev *hdev, void *data,
7487 struct sk_buff *skb);
7488 void (*func_req)(struct hci_dev *hdev, void *data,
7489 struct sk_buff *skb, u16 *opcode, u8 *status,
7490 hci_req_complete_t *req_complete,
7491 hci_req_complete_skb_t *req_complete_skb);
7495 } hci_ev_table[U8_MAX + 1] = {
7496 /* [0x01 = HCI_EV_INQUIRY_COMPLETE] */
7497 HCI_EV_STATUS(HCI_EV_INQUIRY_COMPLETE, hci_inquiry_complete_evt),
7498 /* [0x02 = HCI_EV_INQUIRY_RESULT] */
7499 HCI_EV_VL(HCI_EV_INQUIRY_RESULT, hci_inquiry_result_evt,
7500 sizeof(struct hci_ev_inquiry_result), HCI_MAX_EVENT_SIZE),
7501 /* [0x03 = HCI_EV_CONN_COMPLETE] */
7502 HCI_EV(HCI_EV_CONN_COMPLETE, hci_conn_complete_evt,
7503 sizeof(struct hci_ev_conn_complete)),
7504 /* [0x04 = HCI_EV_CONN_REQUEST] */
7505 HCI_EV(HCI_EV_CONN_REQUEST, hci_conn_request_evt,
7506 sizeof(struct hci_ev_conn_request)),
7507 /* [0x05 = HCI_EV_DISCONN_COMPLETE] */
7508 HCI_EV(HCI_EV_DISCONN_COMPLETE, hci_disconn_complete_evt,
7509 sizeof(struct hci_ev_disconn_complete)),
7510 /* [0x06 = HCI_EV_AUTH_COMPLETE] */
7511 HCI_EV(HCI_EV_AUTH_COMPLETE, hci_auth_complete_evt,
7512 sizeof(struct hci_ev_auth_complete)),
7513 /* [0x07 = HCI_EV_REMOTE_NAME] */
7514 HCI_EV(HCI_EV_REMOTE_NAME, hci_remote_name_evt,
7515 sizeof(struct hci_ev_remote_name)),
7516 /* [0x08 = HCI_EV_ENCRYPT_CHANGE] */
7517 HCI_EV(HCI_EV_ENCRYPT_CHANGE, hci_encrypt_change_evt,
7518 sizeof(struct hci_ev_encrypt_change)),
7519 /* [0x09 = HCI_EV_CHANGE_LINK_KEY_COMPLETE] */
7520 HCI_EV(HCI_EV_CHANGE_LINK_KEY_COMPLETE,
7521 hci_change_link_key_complete_evt,
7522 sizeof(struct hci_ev_change_link_key_complete)),
7523 /* [0x0b = HCI_EV_REMOTE_FEATURES] */
7524 HCI_EV(HCI_EV_REMOTE_FEATURES, hci_remote_features_evt,
7525 sizeof(struct hci_ev_remote_features)),
7526 /* [0x0e = HCI_EV_CMD_COMPLETE] */
7527 HCI_EV_REQ_VL(HCI_EV_CMD_COMPLETE, hci_cmd_complete_evt,
7528 sizeof(struct hci_ev_cmd_complete), HCI_MAX_EVENT_SIZE),
7529 /* [0x0f = HCI_EV_CMD_STATUS] */
7530 HCI_EV_REQ(HCI_EV_CMD_STATUS, hci_cmd_status_evt,
7531 sizeof(struct hci_ev_cmd_status)),
7532 /* [0x10 = HCI_EV_CMD_STATUS] */
7533 HCI_EV(HCI_EV_HARDWARE_ERROR, hci_hardware_error_evt,
7534 sizeof(struct hci_ev_hardware_error)),
7535 /* [0x12 = HCI_EV_ROLE_CHANGE] */
7536 HCI_EV(HCI_EV_ROLE_CHANGE, hci_role_change_evt,
7537 sizeof(struct hci_ev_role_change)),
7538 /* [0x13 = HCI_EV_NUM_COMP_PKTS] */
7539 HCI_EV_VL(HCI_EV_NUM_COMP_PKTS, hci_num_comp_pkts_evt,
7540 sizeof(struct hci_ev_num_comp_pkts), HCI_MAX_EVENT_SIZE),
7541 /* [0x14 = HCI_EV_MODE_CHANGE] */
7542 HCI_EV(HCI_EV_MODE_CHANGE, hci_mode_change_evt,
7543 sizeof(struct hci_ev_mode_change)),
7544 /* [0x16 = HCI_EV_PIN_CODE_REQ] */
7545 HCI_EV(HCI_EV_PIN_CODE_REQ, hci_pin_code_request_evt,
7546 sizeof(struct hci_ev_pin_code_req)),
7547 /* [0x17 = HCI_EV_LINK_KEY_REQ] */
7548 HCI_EV(HCI_EV_LINK_KEY_REQ, hci_link_key_request_evt,
7549 sizeof(struct hci_ev_link_key_req)),
7550 /* [0x18 = HCI_EV_LINK_KEY_NOTIFY] */
7551 HCI_EV(HCI_EV_LINK_KEY_NOTIFY, hci_link_key_notify_evt,
7552 sizeof(struct hci_ev_link_key_notify)),
7553 /* [0x1c = HCI_EV_CLOCK_OFFSET] */
7554 HCI_EV(HCI_EV_CLOCK_OFFSET, hci_clock_offset_evt,
7555 sizeof(struct hci_ev_clock_offset)),
7556 /* [0x1d = HCI_EV_PKT_TYPE_CHANGE] */
7557 HCI_EV(HCI_EV_PKT_TYPE_CHANGE, hci_pkt_type_change_evt,
7558 sizeof(struct hci_ev_pkt_type_change)),
7559 /* [0x20 = HCI_EV_PSCAN_REP_MODE] */
7560 HCI_EV(HCI_EV_PSCAN_REP_MODE, hci_pscan_rep_mode_evt,
7561 sizeof(struct hci_ev_pscan_rep_mode)),
7562 /* [0x22 = HCI_EV_INQUIRY_RESULT_WITH_RSSI] */
7563 HCI_EV_VL(HCI_EV_INQUIRY_RESULT_WITH_RSSI,
7564 hci_inquiry_result_with_rssi_evt,
7565 sizeof(struct hci_ev_inquiry_result_rssi),
7566 HCI_MAX_EVENT_SIZE),
7567 /* [0x23 = HCI_EV_REMOTE_EXT_FEATURES] */
7568 HCI_EV(HCI_EV_REMOTE_EXT_FEATURES, hci_remote_ext_features_evt,
7569 sizeof(struct hci_ev_remote_ext_features)),
7570 /* [0x2c = HCI_EV_SYNC_CONN_COMPLETE] */
7571 HCI_EV(HCI_EV_SYNC_CONN_COMPLETE, hci_sync_conn_complete_evt,
7572 sizeof(struct hci_ev_sync_conn_complete)),
7573 /* [0x2d = HCI_EV_EXTENDED_INQUIRY_RESULT] */
7574 HCI_EV_VL(HCI_EV_EXTENDED_INQUIRY_RESULT,
7575 hci_extended_inquiry_result_evt,
7576 sizeof(struct hci_ev_ext_inquiry_result), HCI_MAX_EVENT_SIZE),
7577 /* [0x30 = HCI_EV_KEY_REFRESH_COMPLETE] */
7578 HCI_EV(HCI_EV_KEY_REFRESH_COMPLETE, hci_key_refresh_complete_evt,
7579 sizeof(struct hci_ev_key_refresh_complete)),
7580 /* [0x31 = HCI_EV_IO_CAPA_REQUEST] */
7581 HCI_EV(HCI_EV_IO_CAPA_REQUEST, hci_io_capa_request_evt,
7582 sizeof(struct hci_ev_io_capa_request)),
7583 /* [0x32 = HCI_EV_IO_CAPA_REPLY] */
7584 HCI_EV(HCI_EV_IO_CAPA_REPLY, hci_io_capa_reply_evt,
7585 sizeof(struct hci_ev_io_capa_reply)),
7586 /* [0x33 = HCI_EV_USER_CONFIRM_REQUEST] */
7587 HCI_EV(HCI_EV_USER_CONFIRM_REQUEST, hci_user_confirm_request_evt,
7588 sizeof(struct hci_ev_user_confirm_req)),
7589 /* [0x34 = HCI_EV_USER_PASSKEY_REQUEST] */
7590 HCI_EV(HCI_EV_USER_PASSKEY_REQUEST, hci_user_passkey_request_evt,
7591 sizeof(struct hci_ev_user_passkey_req)),
7592 /* [0x35 = HCI_EV_REMOTE_OOB_DATA_REQUEST] */
7593 HCI_EV(HCI_EV_REMOTE_OOB_DATA_REQUEST, hci_remote_oob_data_request_evt,
7594 sizeof(struct hci_ev_remote_oob_data_request)),
7595 /* [0x36 = HCI_EV_SIMPLE_PAIR_COMPLETE] */
7596 HCI_EV(HCI_EV_SIMPLE_PAIR_COMPLETE, hci_simple_pair_complete_evt,
7597 sizeof(struct hci_ev_simple_pair_complete)),
7598 /* [0x3b = HCI_EV_USER_PASSKEY_NOTIFY] */
7599 HCI_EV(HCI_EV_USER_PASSKEY_NOTIFY, hci_user_passkey_notify_evt,
7600 sizeof(struct hci_ev_user_passkey_notify)),
7601 /* [0x3c = HCI_EV_KEYPRESS_NOTIFY] */
7602 HCI_EV(HCI_EV_KEYPRESS_NOTIFY, hci_keypress_notify_evt,
7603 sizeof(struct hci_ev_keypress_notify)),
7604 /* [0x3d = HCI_EV_REMOTE_HOST_FEATURES] */
7605 HCI_EV(HCI_EV_REMOTE_HOST_FEATURES, hci_remote_host_features_evt,
7606 sizeof(struct hci_ev_remote_host_features)),
7607 /* [0x3e = HCI_EV_LE_META] */
7608 HCI_EV_REQ_VL(HCI_EV_LE_META, hci_le_meta_evt,
7609 sizeof(struct hci_ev_le_meta), HCI_MAX_EVENT_SIZE),
7610 #if IS_ENABLED(CONFIG_BT_HS)
7611 /* [0x40 = HCI_EV_PHY_LINK_COMPLETE] */
7612 HCI_EV(HCI_EV_PHY_LINK_COMPLETE, hci_phy_link_complete_evt,
7613 sizeof(struct hci_ev_phy_link_complete)),
7614 /* [0x41 = HCI_EV_CHANNEL_SELECTED] */
7615 HCI_EV(HCI_EV_CHANNEL_SELECTED, hci_chan_selected_evt,
7616 sizeof(struct hci_ev_channel_selected)),
7617 /* [0x42 = HCI_EV_DISCONN_PHY_LINK_COMPLETE] */
7618 HCI_EV(HCI_EV_DISCONN_LOGICAL_LINK_COMPLETE,
7619 hci_disconn_loglink_complete_evt,
7620 sizeof(struct hci_ev_disconn_logical_link_complete)),
7621 /* [0x45 = HCI_EV_LOGICAL_LINK_COMPLETE] */
7622 HCI_EV(HCI_EV_LOGICAL_LINK_COMPLETE, hci_loglink_complete_evt,
7623 sizeof(struct hci_ev_logical_link_complete)),
7624 /* [0x46 = HCI_EV_DISCONN_LOGICAL_LINK_COMPLETE] */
7625 HCI_EV(HCI_EV_DISCONN_PHY_LINK_COMPLETE,
7626 hci_disconn_phylink_complete_evt,
7627 sizeof(struct hci_ev_disconn_phy_link_complete)),
7629 /* [0x48 = HCI_EV_NUM_COMP_BLOCKS] */
7630 HCI_EV(HCI_EV_NUM_COMP_BLOCKS, hci_num_comp_blocks_evt,
7631 sizeof(struct hci_ev_num_comp_blocks)),
7632 /* [0xff = HCI_EV_VENDOR] */
7633 HCI_EV_VL(HCI_EV_VENDOR, msft_vendor_evt, 0, HCI_MAX_EVENT_SIZE),
7636 static void hci_event_func(struct hci_dev *hdev, u8 event, struct sk_buff *skb,
7637 u16 *opcode, u8 *status,
7638 hci_req_complete_t *req_complete,
7639 hci_req_complete_skb_t *req_complete_skb)
7641 const struct hci_ev *ev = &hci_ev_table[event];
7647 if (skb->len < ev->min_len) {
7648 bt_dev_err(hdev, "unexpected event 0x%2.2x length: %u < %u",
7649 event, skb->len, ev->min_len);
7653 /* Just warn if the length is over max_len size it still be
7654 * possible to partially parse the event so leave to callback to
7655 * decide if that is acceptable.
7657 if (skb->len > ev->max_len)
7658 bt_dev_warn_ratelimited(hdev,
7659 "unexpected event 0x%2.2x length: %u > %u",
7660 event, skb->len, ev->max_len);
7662 data = hci_ev_skb_pull(hdev, skb, event, ev->min_len);
7667 ev->func_req(hdev, data, skb, opcode, status, req_complete,
7670 ev->func(hdev, data, skb);
7673 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb)
7675 struct hci_event_hdr *hdr = (void *) skb->data;
7676 hci_req_complete_t req_complete = NULL;
7677 hci_req_complete_skb_t req_complete_skb = NULL;
7678 struct sk_buff *orig_skb = NULL;
7679 u8 status = 0, event, req_evt = 0;
7680 u16 opcode = HCI_OP_NOP;
7682 if (skb->len < sizeof(*hdr)) {
7683 bt_dev_err(hdev, "Malformed HCI Event");
7687 kfree_skb(hdev->recv_event);
7688 hdev->recv_event = skb_clone(skb, GFP_KERNEL);
7692 bt_dev_warn(hdev, "Received unexpected HCI Event 0x%2.2x",
7697 /* Only match event if command OGF is not for LE */
7698 if (hdev->sent_cmd &&
7699 hci_opcode_ogf(hci_skb_opcode(hdev->sent_cmd)) != 0x08 &&
7700 hci_skb_event(hdev->sent_cmd) == event) {
7701 hci_req_cmd_complete(hdev, hci_skb_opcode(hdev->sent_cmd),
7702 status, &req_complete, &req_complete_skb);
7706 /* If it looks like we might end up having to call
7707 * req_complete_skb, store a pristine copy of the skb since the
7708 * various handlers may modify the original one through
7709 * skb_pull() calls, etc.
7711 if (req_complete_skb || event == HCI_EV_CMD_STATUS ||
7712 event == HCI_EV_CMD_COMPLETE)
7713 orig_skb = skb_clone(skb, GFP_KERNEL);
7715 skb_pull(skb, HCI_EVENT_HDR_SIZE);
7717 /* Store wake reason if we're suspended */
7718 hci_store_wake_reason(hdev, event, skb);
7720 bt_dev_dbg(hdev, "event 0x%2.2x", event);
7722 hci_event_func(hdev, event, skb, &opcode, &status, &req_complete,
7726 req_complete(hdev, status, opcode);
7727 } else if (req_complete_skb) {
7728 if (!hci_get_cmd_complete(hdev, opcode, req_evt, orig_skb)) {
7729 kfree_skb(orig_skb);
7732 req_complete_skb(hdev, status, opcode, orig_skb);
7736 kfree_skb(orig_skb);
7738 hdev->stat.evt_rx++;