2 BlueZ - Bluetooth protocol stack for Linux
3 Copyright (c) 2000-2001, 2010, Code Aurora Forum. All rights reserved.
6 Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License version 2 as
10 published by the Free Software Foundation;
12 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
13 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
14 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
15 IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
16 CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
17 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
18 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
19 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
21 ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
22 COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
23 SOFTWARE IS DISCLAIMED.
26 /* Bluetooth HCI event handling. */
28 #include <asm/unaligned.h>
30 #include <net/bluetooth/bluetooth.h>
31 #include <net/bluetooth/hci_core.h>
32 #include <net/bluetooth/mgmt.h>
34 #include "hci_request.h"
35 #include "hci_debugfs.h"
42 #define ZERO_KEY "\x00\x00\x00\x00\x00\x00\x00\x00" \
43 "\x00\x00\x00\x00\x00\x00\x00\x00"
45 #define secs_to_jiffies(_secs) msecs_to_jiffies((_secs) * 1000)
47 /* Handle HCI Event packets */
49 static void *hci_ev_skb_pull(struct hci_dev *hdev, struct sk_buff *skb,
54 data = skb_pull_data(skb, len);
56 bt_dev_err(hdev, "Malformed Event: 0x%2.2x", ev);
61 static void *hci_cc_skb_pull(struct hci_dev *hdev, struct sk_buff *skb,
66 data = skb_pull_data(skb, len);
68 bt_dev_err(hdev, "Malformed Command Complete: 0x%4.4x", op);
73 static void *hci_le_ev_skb_pull(struct hci_dev *hdev, struct sk_buff *skb,
78 data = skb_pull_data(skb, len);
80 bt_dev_err(hdev, "Malformed LE Event: 0x%2.2x", ev);
85 static u8 hci_cc_inquiry_cancel(struct hci_dev *hdev, void *data,
88 struct hci_ev_status *rp = data;
90 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
92 /* It is possible that we receive Inquiry Complete event right
93 * before we receive Inquiry Cancel Command Complete event, in
94 * which case the latter event should have status of Command
95 * Disallowed (0x0c). This should not be treated as error, since
96 * we actually achieve what Inquiry Cancel wants to achieve,
97 * which is to end the last Inquiry session.
99 if (rp->status == 0x0c && !test_bit(HCI_INQUIRY, &hdev->flags)) {
100 bt_dev_warn(hdev, "Ignoring error of Inquiry Cancel command");
107 clear_bit(HCI_INQUIRY, &hdev->flags);
108 smp_mb__after_atomic(); /* wake_up_bit advises about this barrier */
109 wake_up_bit(&hdev->flags, HCI_INQUIRY);
112 /* Set discovery state to stopped if we're not doing LE active
115 if (!hci_dev_test_flag(hdev, HCI_LE_SCAN) ||
116 hdev->le_scan_type != LE_SCAN_ACTIVE)
117 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
118 hci_dev_unlock(hdev);
120 hci_conn_check_pending(hdev);
125 static u8 hci_cc_periodic_inq(struct hci_dev *hdev, void *data,
128 struct hci_ev_status *rp = data;
130 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
135 hci_dev_set_flag(hdev, HCI_PERIODIC_INQ);
140 static u8 hci_cc_exit_periodic_inq(struct hci_dev *hdev, void *data,
143 struct hci_ev_status *rp = data;
145 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
150 hci_dev_clear_flag(hdev, HCI_PERIODIC_INQ);
152 hci_conn_check_pending(hdev);
157 static u8 hci_cc_remote_name_req_cancel(struct hci_dev *hdev, void *data,
160 struct hci_ev_status *rp = data;
162 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
167 static u8 hci_cc_role_discovery(struct hci_dev *hdev, void *data,
170 struct hci_rp_role_discovery *rp = data;
171 struct hci_conn *conn;
173 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
180 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
182 conn->role = rp->role;
184 hci_dev_unlock(hdev);
189 static u8 hci_cc_read_link_policy(struct hci_dev *hdev, void *data,
192 struct hci_rp_read_link_policy *rp = data;
193 struct hci_conn *conn;
195 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
202 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
204 conn->link_policy = __le16_to_cpu(rp->policy);
206 hci_dev_unlock(hdev);
211 static u8 hci_cc_write_link_policy(struct hci_dev *hdev, void *data,
214 struct hci_rp_write_link_policy *rp = data;
215 struct hci_conn *conn;
218 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
223 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LINK_POLICY);
229 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
231 conn->link_policy = get_unaligned_le16(sent + 2);
233 hci_dev_unlock(hdev);
238 static u8 hci_cc_read_def_link_policy(struct hci_dev *hdev, void *data,
241 struct hci_rp_read_def_link_policy *rp = data;
243 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
248 hdev->link_policy = __le16_to_cpu(rp->policy);
253 static u8 hci_cc_write_def_link_policy(struct hci_dev *hdev, void *data,
256 struct hci_ev_status *rp = data;
259 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
264 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_DEF_LINK_POLICY);
268 hdev->link_policy = get_unaligned_le16(sent);
273 static u8 hci_cc_reset(struct hci_dev *hdev, void *data, struct sk_buff *skb)
275 struct hci_ev_status *rp = data;
277 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
279 clear_bit(HCI_RESET, &hdev->flags);
284 /* Reset all non-persistent flags */
285 hci_dev_clear_volatile_flags(hdev);
287 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
289 hdev->inq_tx_power = HCI_TX_POWER_INVALID;
290 hdev->adv_tx_power = HCI_TX_POWER_INVALID;
292 memset(hdev->adv_data, 0, sizeof(hdev->adv_data));
293 hdev->adv_data_len = 0;
295 memset(hdev->scan_rsp_data, 0, sizeof(hdev->scan_rsp_data));
296 hdev->scan_rsp_data_len = 0;
298 hdev->le_scan_type = LE_SCAN_PASSIVE;
300 hdev->ssp_debug_mode = 0;
302 hci_bdaddr_list_clear(&hdev->le_accept_list);
303 hci_bdaddr_list_clear(&hdev->le_resolv_list);
308 static u8 hci_cc_read_stored_link_key(struct hci_dev *hdev, void *data,
311 struct hci_rp_read_stored_link_key *rp = data;
312 struct hci_cp_read_stored_link_key *sent;
314 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
316 sent = hci_sent_cmd_data(hdev, HCI_OP_READ_STORED_LINK_KEY);
320 if (!rp->status && sent->read_all == 0x01) {
321 hdev->stored_max_keys = le16_to_cpu(rp->max_keys);
322 hdev->stored_num_keys = le16_to_cpu(rp->num_keys);
328 static u8 hci_cc_delete_stored_link_key(struct hci_dev *hdev, void *data,
331 struct hci_rp_delete_stored_link_key *rp = data;
334 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
339 num_keys = le16_to_cpu(rp->num_keys);
341 if (num_keys <= hdev->stored_num_keys)
342 hdev->stored_num_keys -= num_keys;
344 hdev->stored_num_keys = 0;
349 static u8 hci_cc_write_local_name(struct hci_dev *hdev, void *data,
352 struct hci_ev_status *rp = data;
355 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
357 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LOCAL_NAME);
363 if (hci_dev_test_flag(hdev, HCI_MGMT))
364 mgmt_set_local_name_complete(hdev, sent, rp->status);
365 else if (!rp->status)
366 memcpy(hdev->dev_name, sent, HCI_MAX_NAME_LENGTH);
368 hci_dev_unlock(hdev);
373 static u8 hci_cc_read_local_name(struct hci_dev *hdev, void *data,
376 struct hci_rp_read_local_name *rp = data;
378 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
383 if (hci_dev_test_flag(hdev, HCI_SETUP) ||
384 hci_dev_test_flag(hdev, HCI_CONFIG))
385 memcpy(hdev->dev_name, rp->name, HCI_MAX_NAME_LENGTH);
390 static u8 hci_cc_write_auth_enable(struct hci_dev *hdev, void *data,
393 struct hci_ev_status *rp = data;
396 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
398 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_AUTH_ENABLE);
405 __u8 param = *((__u8 *) sent);
407 if (param == AUTH_ENABLED)
408 set_bit(HCI_AUTH, &hdev->flags);
410 clear_bit(HCI_AUTH, &hdev->flags);
413 if (hci_dev_test_flag(hdev, HCI_MGMT))
414 mgmt_auth_enable_complete(hdev, rp->status);
416 hci_dev_unlock(hdev);
421 static u8 hci_cc_write_encrypt_mode(struct hci_dev *hdev, void *data,
424 struct hci_ev_status *rp = data;
428 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
433 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_ENCRYPT_MODE);
437 param = *((__u8 *) sent);
440 set_bit(HCI_ENCRYPT, &hdev->flags);
442 clear_bit(HCI_ENCRYPT, &hdev->flags);
447 static u8 hci_cc_write_scan_enable(struct hci_dev *hdev, void *data,
450 struct hci_ev_status *rp = data;
454 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
456 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SCAN_ENABLE);
460 param = *((__u8 *) sent);
465 hdev->discov_timeout = 0;
469 if (param & SCAN_INQUIRY)
470 set_bit(HCI_ISCAN, &hdev->flags);
472 clear_bit(HCI_ISCAN, &hdev->flags);
474 if (param & SCAN_PAGE)
475 set_bit(HCI_PSCAN, &hdev->flags);
477 clear_bit(HCI_PSCAN, &hdev->flags);
480 hci_dev_unlock(hdev);
485 static u8 hci_cc_set_event_filter(struct hci_dev *hdev, void *data,
488 struct hci_ev_status *rp = data;
489 struct hci_cp_set_event_filter *cp;
492 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
497 sent = hci_sent_cmd_data(hdev, HCI_OP_SET_EVENT_FLT);
501 cp = (struct hci_cp_set_event_filter *)sent;
503 if (cp->flt_type == HCI_FLT_CLEAR_ALL)
504 hci_dev_clear_flag(hdev, HCI_EVENT_FILTER_CONFIGURED);
506 hci_dev_set_flag(hdev, HCI_EVENT_FILTER_CONFIGURED);
511 static u8 hci_cc_read_class_of_dev(struct hci_dev *hdev, void *data,
514 struct hci_rp_read_class_of_dev *rp = data;
516 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
521 memcpy(hdev->dev_class, rp->dev_class, 3);
523 bt_dev_dbg(hdev, "class 0x%.2x%.2x%.2x", hdev->dev_class[2],
524 hdev->dev_class[1], hdev->dev_class[0]);
529 static u8 hci_cc_write_class_of_dev(struct hci_dev *hdev, void *data,
532 struct hci_ev_status *rp = data;
535 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
537 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_CLASS_OF_DEV);
544 memcpy(hdev->dev_class, sent, 3);
546 if (hci_dev_test_flag(hdev, HCI_MGMT))
547 mgmt_set_class_of_dev_complete(hdev, sent, rp->status);
549 hci_dev_unlock(hdev);
554 static u8 hci_cc_read_voice_setting(struct hci_dev *hdev, void *data,
557 struct hci_rp_read_voice_setting *rp = data;
560 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
565 setting = __le16_to_cpu(rp->voice_setting);
567 if (hdev->voice_setting == setting)
570 hdev->voice_setting = setting;
572 bt_dev_dbg(hdev, "voice setting 0x%4.4x", setting);
575 hdev->notify(hdev, HCI_NOTIFY_VOICE_SETTING);
580 static u8 hci_cc_write_voice_setting(struct hci_dev *hdev, void *data,
583 struct hci_ev_status *rp = data;
587 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
592 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_VOICE_SETTING);
596 setting = get_unaligned_le16(sent);
598 if (hdev->voice_setting == setting)
601 hdev->voice_setting = setting;
603 bt_dev_dbg(hdev, "voice setting 0x%4.4x", setting);
606 hdev->notify(hdev, HCI_NOTIFY_VOICE_SETTING);
611 static u8 hci_cc_read_num_supported_iac(struct hci_dev *hdev, void *data,
614 struct hci_rp_read_num_supported_iac *rp = data;
616 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
621 hdev->num_iac = rp->num_iac;
623 bt_dev_dbg(hdev, "num iac %d", hdev->num_iac);
628 static u8 hci_cc_write_ssp_mode(struct hci_dev *hdev, void *data,
631 struct hci_ev_status *rp = data;
632 struct hci_cp_write_ssp_mode *sent;
634 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
636 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SSP_MODE);
644 hdev->features[1][0] |= LMP_HOST_SSP;
646 hdev->features[1][0] &= ~LMP_HOST_SSP;
651 hci_dev_set_flag(hdev, HCI_SSP_ENABLED);
653 hci_dev_clear_flag(hdev, HCI_SSP_ENABLED);
656 hci_dev_unlock(hdev);
661 static u8 hci_cc_write_sc_support(struct hci_dev *hdev, void *data,
664 struct hci_ev_status *rp = data;
665 struct hci_cp_write_sc_support *sent;
667 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
669 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SC_SUPPORT);
677 hdev->features[1][0] |= LMP_HOST_SC;
679 hdev->features[1][0] &= ~LMP_HOST_SC;
682 if (!hci_dev_test_flag(hdev, HCI_MGMT) && !rp->status) {
684 hci_dev_set_flag(hdev, HCI_SC_ENABLED);
686 hci_dev_clear_flag(hdev, HCI_SC_ENABLED);
689 hci_dev_unlock(hdev);
694 static u8 hci_cc_read_local_version(struct hci_dev *hdev, void *data,
697 struct hci_rp_read_local_version *rp = data;
699 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
704 if (hci_dev_test_flag(hdev, HCI_SETUP) ||
705 hci_dev_test_flag(hdev, HCI_CONFIG)) {
706 hdev->hci_ver = rp->hci_ver;
707 hdev->hci_rev = __le16_to_cpu(rp->hci_rev);
708 hdev->lmp_ver = rp->lmp_ver;
709 hdev->manufacturer = __le16_to_cpu(rp->manufacturer);
710 hdev->lmp_subver = __le16_to_cpu(rp->lmp_subver);
716 static u8 hci_cc_read_enc_key_size(struct hci_dev *hdev, void *data,
719 struct hci_rp_read_enc_key_size *rp = data;
720 struct hci_conn *conn;
722 u8 status = rp->status;
724 bt_dev_dbg(hdev, "status 0x%2.2x", status);
726 handle = le16_to_cpu(rp->handle);
730 conn = hci_conn_hash_lookup_handle(hdev, handle);
736 /* While unexpected, the read_enc_key_size command may fail. The most
737 * secure approach is to then assume the key size is 0 to force a
741 bt_dev_err(hdev, "failed to read key size for handle %u",
743 conn->enc_key_size = 0;
745 conn->enc_key_size = rp->key_size;
749 hci_encrypt_cfm(conn, 0);
752 hci_dev_unlock(hdev);
757 static u8 hci_cc_read_local_commands(struct hci_dev *hdev, void *data,
760 struct hci_rp_read_local_commands *rp = data;
762 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
767 if (hci_dev_test_flag(hdev, HCI_SETUP) ||
768 hci_dev_test_flag(hdev, HCI_CONFIG))
769 memcpy(hdev->commands, rp->commands, sizeof(hdev->commands));
774 static u8 hci_cc_read_auth_payload_timeout(struct hci_dev *hdev, void *data,
777 struct hci_rp_read_auth_payload_to *rp = data;
778 struct hci_conn *conn;
780 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
787 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
789 conn->auth_payload_timeout = __le16_to_cpu(rp->timeout);
791 hci_dev_unlock(hdev);
796 static u8 hci_cc_write_auth_payload_timeout(struct hci_dev *hdev, void *data,
799 struct hci_rp_write_auth_payload_to *rp = data;
800 struct hci_conn *conn;
803 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
805 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_AUTH_PAYLOAD_TO);
811 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
818 conn->auth_payload_timeout = get_unaligned_le16(sent + 2);
820 hci_encrypt_cfm(conn, 0);
823 hci_dev_unlock(hdev);
828 static u8 hci_cc_read_local_features(struct hci_dev *hdev, void *data,
831 struct hci_rp_read_local_features *rp = data;
833 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
838 memcpy(hdev->features, rp->features, 8);
840 /* Adjust default settings according to features
841 * supported by device. */
843 if (hdev->features[0][0] & LMP_3SLOT)
844 hdev->pkt_type |= (HCI_DM3 | HCI_DH3);
846 if (hdev->features[0][0] & LMP_5SLOT)
847 hdev->pkt_type |= (HCI_DM5 | HCI_DH5);
849 if (hdev->features[0][1] & LMP_HV2) {
850 hdev->pkt_type |= (HCI_HV2);
851 hdev->esco_type |= (ESCO_HV2);
854 if (hdev->features[0][1] & LMP_HV3) {
855 hdev->pkt_type |= (HCI_HV3);
856 hdev->esco_type |= (ESCO_HV3);
859 if (lmp_esco_capable(hdev))
860 hdev->esco_type |= (ESCO_EV3);
862 if (hdev->features[0][4] & LMP_EV4)
863 hdev->esco_type |= (ESCO_EV4);
865 if (hdev->features[0][4] & LMP_EV5)
866 hdev->esco_type |= (ESCO_EV5);
868 if (hdev->features[0][5] & LMP_EDR_ESCO_2M)
869 hdev->esco_type |= (ESCO_2EV3);
871 if (hdev->features[0][5] & LMP_EDR_ESCO_3M)
872 hdev->esco_type |= (ESCO_3EV3);
874 if (hdev->features[0][5] & LMP_EDR_3S_ESCO)
875 hdev->esco_type |= (ESCO_2EV5 | ESCO_3EV5);
880 static u8 hci_cc_read_local_ext_features(struct hci_dev *hdev, void *data,
883 struct hci_rp_read_local_ext_features *rp = data;
885 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
890 if (hdev->max_page < rp->max_page) {
891 if (test_bit(HCI_QUIRK_BROKEN_LOCAL_EXT_FEATURES_PAGE_2,
893 bt_dev_warn(hdev, "broken local ext features page 2");
895 hdev->max_page = rp->max_page;
898 if (rp->page < HCI_MAX_PAGES)
899 memcpy(hdev->features[rp->page], rp->features, 8);
904 static u8 hci_cc_read_flow_control_mode(struct hci_dev *hdev, void *data,
907 struct hci_rp_read_flow_control_mode *rp = data;
909 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
914 hdev->flow_ctl_mode = rp->mode;
919 static u8 hci_cc_read_buffer_size(struct hci_dev *hdev, void *data,
922 struct hci_rp_read_buffer_size *rp = data;
924 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
929 hdev->acl_mtu = __le16_to_cpu(rp->acl_mtu);
930 hdev->sco_mtu = rp->sco_mtu;
931 hdev->acl_pkts = __le16_to_cpu(rp->acl_max_pkt);
932 hdev->sco_pkts = __le16_to_cpu(rp->sco_max_pkt);
934 if (test_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks)) {
939 hdev->acl_cnt = hdev->acl_pkts;
940 hdev->sco_cnt = hdev->sco_pkts;
942 BT_DBG("%s acl mtu %d:%d sco mtu %d:%d", hdev->name, hdev->acl_mtu,
943 hdev->acl_pkts, hdev->sco_mtu, hdev->sco_pkts);
948 static u8 hci_cc_read_bd_addr(struct hci_dev *hdev, void *data,
951 struct hci_rp_read_bd_addr *rp = data;
953 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
958 if (test_bit(HCI_INIT, &hdev->flags))
959 bacpy(&hdev->bdaddr, &rp->bdaddr);
961 if (hci_dev_test_flag(hdev, HCI_SETUP))
962 bacpy(&hdev->setup_addr, &rp->bdaddr);
967 static u8 hci_cc_read_local_pairing_opts(struct hci_dev *hdev, void *data,
970 struct hci_rp_read_local_pairing_opts *rp = data;
972 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
977 if (hci_dev_test_flag(hdev, HCI_SETUP) ||
978 hci_dev_test_flag(hdev, HCI_CONFIG)) {
979 hdev->pairing_opts = rp->pairing_opts;
980 hdev->max_enc_key_size = rp->max_key_size;
986 static u8 hci_cc_read_page_scan_activity(struct hci_dev *hdev, void *data,
989 struct hci_rp_read_page_scan_activity *rp = data;
991 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
996 if (test_bit(HCI_INIT, &hdev->flags)) {
997 hdev->page_scan_interval = __le16_to_cpu(rp->interval);
998 hdev->page_scan_window = __le16_to_cpu(rp->window);
1004 static u8 hci_cc_write_page_scan_activity(struct hci_dev *hdev, void *data,
1005 struct sk_buff *skb)
1007 struct hci_ev_status *rp = data;
1008 struct hci_cp_write_page_scan_activity *sent;
1010 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1015 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_PAGE_SCAN_ACTIVITY);
1019 hdev->page_scan_interval = __le16_to_cpu(sent->interval);
1020 hdev->page_scan_window = __le16_to_cpu(sent->window);
1025 static u8 hci_cc_read_page_scan_type(struct hci_dev *hdev, void *data,
1026 struct sk_buff *skb)
1028 struct hci_rp_read_page_scan_type *rp = data;
1030 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1035 if (test_bit(HCI_INIT, &hdev->flags))
1036 hdev->page_scan_type = rp->type;
1041 static u8 hci_cc_write_page_scan_type(struct hci_dev *hdev, void *data,
1042 struct sk_buff *skb)
1044 struct hci_ev_status *rp = data;
1047 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1052 type = hci_sent_cmd_data(hdev, HCI_OP_WRITE_PAGE_SCAN_TYPE);
1054 hdev->page_scan_type = *type;
1059 static u8 hci_cc_read_data_block_size(struct hci_dev *hdev, void *data,
1060 struct sk_buff *skb)
1062 struct hci_rp_read_data_block_size *rp = data;
1064 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1069 hdev->block_mtu = __le16_to_cpu(rp->max_acl_len);
1070 hdev->block_len = __le16_to_cpu(rp->block_len);
1071 hdev->num_blocks = __le16_to_cpu(rp->num_blocks);
1073 hdev->block_cnt = hdev->num_blocks;
1075 BT_DBG("%s blk mtu %d cnt %d len %d", hdev->name, hdev->block_mtu,
1076 hdev->block_cnt, hdev->block_len);
1081 static u8 hci_cc_read_clock(struct hci_dev *hdev, void *data,
1082 struct sk_buff *skb)
1084 struct hci_rp_read_clock *rp = data;
1085 struct hci_cp_read_clock *cp;
1086 struct hci_conn *conn;
1088 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1095 cp = hci_sent_cmd_data(hdev, HCI_OP_READ_CLOCK);
1099 if (cp->which == 0x00) {
1100 hdev->clock = le32_to_cpu(rp->clock);
1104 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
1106 conn->clock = le32_to_cpu(rp->clock);
1107 conn->clock_accuracy = le16_to_cpu(rp->accuracy);
1111 hci_dev_unlock(hdev);
1115 static u8 hci_cc_read_local_amp_info(struct hci_dev *hdev, void *data,
1116 struct sk_buff *skb)
1118 struct hci_rp_read_local_amp_info *rp = data;
1120 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1125 hdev->amp_status = rp->amp_status;
1126 hdev->amp_total_bw = __le32_to_cpu(rp->total_bw);
1127 hdev->amp_max_bw = __le32_to_cpu(rp->max_bw);
1128 hdev->amp_min_latency = __le32_to_cpu(rp->min_latency);
1129 hdev->amp_max_pdu = __le32_to_cpu(rp->max_pdu);
1130 hdev->amp_type = rp->amp_type;
1131 hdev->amp_pal_cap = __le16_to_cpu(rp->pal_cap);
1132 hdev->amp_assoc_size = __le16_to_cpu(rp->max_assoc_size);
1133 hdev->amp_be_flush_to = __le32_to_cpu(rp->be_flush_to);
1134 hdev->amp_max_flush_to = __le32_to_cpu(rp->max_flush_to);
1139 static u8 hci_cc_read_inq_rsp_tx_power(struct hci_dev *hdev, void *data,
1140 struct sk_buff *skb)
1142 struct hci_rp_read_inq_rsp_tx_power *rp = data;
1144 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1149 hdev->inq_tx_power = rp->tx_power;
1154 static u8 hci_cc_read_def_err_data_reporting(struct hci_dev *hdev, void *data,
1155 struct sk_buff *skb)
1157 struct hci_rp_read_def_err_data_reporting *rp = data;
1159 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1164 hdev->err_data_reporting = rp->err_data_reporting;
1169 static u8 hci_cc_write_def_err_data_reporting(struct hci_dev *hdev, void *data,
1170 struct sk_buff *skb)
1172 struct hci_ev_status *rp = data;
1173 struct hci_cp_write_def_err_data_reporting *cp;
1175 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1180 cp = hci_sent_cmd_data(hdev, HCI_OP_WRITE_DEF_ERR_DATA_REPORTING);
1184 hdev->err_data_reporting = cp->err_data_reporting;
1189 static u8 hci_cc_pin_code_reply(struct hci_dev *hdev, void *data,
1190 struct sk_buff *skb)
1192 struct hci_rp_pin_code_reply *rp = data;
1193 struct hci_cp_pin_code_reply *cp;
1194 struct hci_conn *conn;
1196 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1200 if (hci_dev_test_flag(hdev, HCI_MGMT))
1201 mgmt_pin_code_reply_complete(hdev, &rp->bdaddr, rp->status);
1206 cp = hci_sent_cmd_data(hdev, HCI_OP_PIN_CODE_REPLY);
1210 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
1212 conn->pin_length = cp->pin_len;
1215 hci_dev_unlock(hdev);
1219 static u8 hci_cc_pin_code_neg_reply(struct hci_dev *hdev, void *data,
1220 struct sk_buff *skb)
1222 struct hci_rp_pin_code_neg_reply *rp = data;
1224 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1228 if (hci_dev_test_flag(hdev, HCI_MGMT))
1229 mgmt_pin_code_neg_reply_complete(hdev, &rp->bdaddr,
1232 hci_dev_unlock(hdev);
1237 static u8 hci_cc_le_read_buffer_size(struct hci_dev *hdev, void *data,
1238 struct sk_buff *skb)
1240 struct hci_rp_le_read_buffer_size *rp = data;
1242 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1247 hdev->le_mtu = __le16_to_cpu(rp->le_mtu);
1248 hdev->le_pkts = rp->le_max_pkt;
1250 hdev->le_cnt = hdev->le_pkts;
1252 BT_DBG("%s le mtu %d:%d", hdev->name, hdev->le_mtu, hdev->le_pkts);
1257 static u8 hci_cc_le_read_local_features(struct hci_dev *hdev, void *data,
1258 struct sk_buff *skb)
1260 struct hci_rp_le_read_local_features *rp = data;
1262 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
1267 memcpy(hdev->le_features, rp->features, 8);
1272 static u8 hci_cc_le_read_adv_tx_power(struct hci_dev *hdev, void *data,
1273 struct sk_buff *skb)
1275 struct hci_rp_le_read_adv_tx_power *rp = data;
1277 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1282 hdev->adv_tx_power = rp->tx_power;
1287 static u8 hci_cc_user_confirm_reply(struct hci_dev *hdev, void *data,
1288 struct sk_buff *skb)
1290 struct hci_rp_user_confirm_reply *rp = data;
1292 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1296 if (hci_dev_test_flag(hdev, HCI_MGMT))
1297 mgmt_user_confirm_reply_complete(hdev, &rp->bdaddr, ACL_LINK, 0,
1300 hci_dev_unlock(hdev);
1305 static u8 hci_cc_user_confirm_neg_reply(struct hci_dev *hdev, void *data,
1306 struct sk_buff *skb)
1308 struct hci_rp_user_confirm_reply *rp = data;
1310 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1314 if (hci_dev_test_flag(hdev, HCI_MGMT))
1315 mgmt_user_confirm_neg_reply_complete(hdev, &rp->bdaddr,
1316 ACL_LINK, 0, rp->status);
1318 hci_dev_unlock(hdev);
1323 static u8 hci_cc_user_passkey_reply(struct hci_dev *hdev, void *data,
1324 struct sk_buff *skb)
1326 struct hci_rp_user_confirm_reply *rp = data;
1328 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1332 if (hci_dev_test_flag(hdev, HCI_MGMT))
1333 mgmt_user_passkey_reply_complete(hdev, &rp->bdaddr, ACL_LINK,
1336 hci_dev_unlock(hdev);
1341 static u8 hci_cc_user_passkey_neg_reply(struct hci_dev *hdev, void *data,
1342 struct sk_buff *skb)
1344 struct hci_rp_user_confirm_reply *rp = data;
1346 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1350 if (hci_dev_test_flag(hdev, HCI_MGMT))
1351 mgmt_user_passkey_neg_reply_complete(hdev, &rp->bdaddr,
1352 ACL_LINK, 0, rp->status);
1354 hci_dev_unlock(hdev);
1359 static u8 hci_cc_read_local_oob_data(struct hci_dev *hdev, void *data,
1360 struct sk_buff *skb)
1362 struct hci_rp_read_local_oob_data *rp = data;
1364 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1369 static u8 hci_cc_read_local_oob_ext_data(struct hci_dev *hdev, void *data,
1370 struct sk_buff *skb)
1372 struct hci_rp_read_local_oob_ext_data *rp = data;
1374 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1379 static u8 hci_cc_le_set_random_addr(struct hci_dev *hdev, void *data,
1380 struct sk_buff *skb)
1382 struct hci_ev_status *rp = data;
1385 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1390 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_RANDOM_ADDR);
1396 bacpy(&hdev->random_addr, sent);
1398 if (!bacmp(&hdev->rpa, sent)) {
1399 hci_dev_clear_flag(hdev, HCI_RPA_EXPIRED);
1400 queue_delayed_work(hdev->workqueue, &hdev->rpa_expired,
1401 secs_to_jiffies(hdev->rpa_timeout));
1404 hci_dev_unlock(hdev);
1409 static u8 hci_cc_le_set_default_phy(struct hci_dev *hdev, void *data,
1410 struct sk_buff *skb)
1412 struct hci_ev_status *rp = data;
1413 struct hci_cp_le_set_default_phy *cp;
1415 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1420 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_DEFAULT_PHY);
1426 hdev->le_tx_def_phys = cp->tx_phys;
1427 hdev->le_rx_def_phys = cp->rx_phys;
1429 hci_dev_unlock(hdev);
1434 static u8 hci_cc_le_set_adv_set_random_addr(struct hci_dev *hdev, void *data,
1435 struct sk_buff *skb)
1437 struct hci_ev_status *rp = data;
1438 struct hci_cp_le_set_adv_set_rand_addr *cp;
1439 struct adv_info *adv;
1441 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1446 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADV_SET_RAND_ADDR);
1447 /* Update only in case the adv instance since handle 0x00 shall be using
1448 * HCI_OP_LE_SET_RANDOM_ADDR since that allows both extended and
1449 * non-extended adverting.
1451 if (!cp || !cp->handle)
1456 adv = hci_find_adv_instance(hdev, cp->handle);
1458 bacpy(&adv->random_addr, &cp->bdaddr);
1459 if (!bacmp(&hdev->rpa, &cp->bdaddr)) {
1460 adv->rpa_expired = false;
1461 queue_delayed_work(hdev->workqueue,
1462 &adv->rpa_expired_cb,
1463 secs_to_jiffies(hdev->rpa_timeout));
1467 hci_dev_unlock(hdev);
1472 static u8 hci_cc_le_remove_adv_set(struct hci_dev *hdev, void *data,
1473 struct sk_buff *skb)
1475 struct hci_ev_status *rp = data;
1479 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1484 instance = hci_sent_cmd_data(hdev, HCI_OP_LE_REMOVE_ADV_SET);
1490 err = hci_remove_adv_instance(hdev, *instance);
1492 mgmt_advertising_removed(hci_skb_sk(hdev->sent_cmd), hdev,
1495 hci_dev_unlock(hdev);
1500 static u8 hci_cc_le_clear_adv_sets(struct hci_dev *hdev, void *data,
1501 struct sk_buff *skb)
1503 struct hci_ev_status *rp = data;
1504 struct adv_info *adv, *n;
1507 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1512 if (!hci_sent_cmd_data(hdev, HCI_OP_LE_CLEAR_ADV_SETS))
1517 list_for_each_entry_safe(adv, n, &hdev->adv_instances, list) {
1518 u8 instance = adv->instance;
1520 err = hci_remove_adv_instance(hdev, instance);
1522 mgmt_advertising_removed(hci_skb_sk(hdev->sent_cmd),
1526 hci_dev_unlock(hdev);
1531 static u8 hci_cc_le_read_transmit_power(struct hci_dev *hdev, void *data,
1532 struct sk_buff *skb)
1534 struct hci_rp_le_read_transmit_power *rp = data;
1536 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1541 hdev->min_le_tx_power = rp->min_le_tx_power;
1542 hdev->max_le_tx_power = rp->max_le_tx_power;
1547 static u8 hci_cc_le_set_privacy_mode(struct hci_dev *hdev, void *data,
1548 struct sk_buff *skb)
1550 struct hci_ev_status *rp = data;
1551 struct hci_cp_le_set_privacy_mode *cp;
1552 struct hci_conn_params *params;
1554 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1559 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_PRIVACY_MODE);
1565 params = hci_conn_params_lookup(hdev, &cp->bdaddr, cp->bdaddr_type);
1567 params->privacy_mode = cp->mode;
1569 hci_dev_unlock(hdev);
1574 static u8 hci_cc_le_set_adv_enable(struct hci_dev *hdev, void *data,
1575 struct sk_buff *skb)
1577 struct hci_ev_status *rp = data;
1580 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1585 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADV_ENABLE);
1591 /* If we're doing connection initiation as peripheral. Set a
1592 * timeout in case something goes wrong.
1595 struct hci_conn *conn;
1597 hci_dev_set_flag(hdev, HCI_LE_ADV);
1599 conn = hci_lookup_le_connect(hdev);
1601 queue_delayed_work(hdev->workqueue,
1602 &conn->le_conn_timeout,
1603 conn->conn_timeout);
1605 hci_dev_clear_flag(hdev, HCI_LE_ADV);
1608 hci_dev_unlock(hdev);
1613 static u8 hci_cc_le_set_ext_adv_enable(struct hci_dev *hdev, void *data,
1614 struct sk_buff *skb)
1616 struct hci_cp_le_set_ext_adv_enable *cp;
1617 struct hci_cp_ext_adv_set *set;
1618 struct adv_info *adv = NULL, *n;
1619 struct hci_ev_status *rp = data;
1621 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1626 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_EXT_ADV_ENABLE);
1630 set = (void *)cp->data;
1634 if (cp->num_of_sets)
1635 adv = hci_find_adv_instance(hdev, set->handle);
1638 struct hci_conn *conn;
1640 hci_dev_set_flag(hdev, HCI_LE_ADV);
1643 adv->enabled = true;
1645 conn = hci_lookup_le_connect(hdev);
1647 queue_delayed_work(hdev->workqueue,
1648 &conn->le_conn_timeout,
1649 conn->conn_timeout);
1651 if (cp->num_of_sets) {
1653 adv->enabled = false;
1655 /* If just one instance was disabled check if there are
1656 * any other instance enabled before clearing HCI_LE_ADV
1658 list_for_each_entry_safe(adv, n, &hdev->adv_instances,
1664 /* All instances shall be considered disabled */
1665 list_for_each_entry_safe(adv, n, &hdev->adv_instances,
1667 adv->enabled = false;
1670 hci_dev_clear_flag(hdev, HCI_LE_ADV);
1674 hci_dev_unlock(hdev);
1678 static u8 hci_cc_le_set_scan_param(struct hci_dev *hdev, void *data,
1679 struct sk_buff *skb)
1681 struct hci_cp_le_set_scan_param *cp;
1682 struct hci_ev_status *rp = data;
1684 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1689 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_SCAN_PARAM);
1695 hdev->le_scan_type = cp->type;
1697 hci_dev_unlock(hdev);
1702 static u8 hci_cc_le_set_ext_scan_param(struct hci_dev *hdev, void *data,
1703 struct sk_buff *skb)
1705 struct hci_cp_le_set_ext_scan_params *cp;
1706 struct hci_ev_status *rp = data;
1707 struct hci_cp_le_scan_phy_params *phy_param;
1709 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1714 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_EXT_SCAN_PARAMS);
1718 phy_param = (void *)cp->data;
1722 hdev->le_scan_type = phy_param->type;
1724 hci_dev_unlock(hdev);
1729 static bool has_pending_adv_report(struct hci_dev *hdev)
1731 struct discovery_state *d = &hdev->discovery;
1733 return bacmp(&d->last_adv_addr, BDADDR_ANY);
1736 static void clear_pending_adv_report(struct hci_dev *hdev)
1738 struct discovery_state *d = &hdev->discovery;
1740 bacpy(&d->last_adv_addr, BDADDR_ANY);
1741 d->last_adv_data_len = 0;
1744 static void store_pending_adv_report(struct hci_dev *hdev, bdaddr_t *bdaddr,
1745 u8 bdaddr_type, s8 rssi, u32 flags,
1748 struct discovery_state *d = &hdev->discovery;
1750 if (len > HCI_MAX_AD_LENGTH)
1753 bacpy(&d->last_adv_addr, bdaddr);
1754 d->last_adv_addr_type = bdaddr_type;
1755 d->last_adv_rssi = rssi;
1756 d->last_adv_flags = flags;
1757 memcpy(d->last_adv_data, data, len);
1758 d->last_adv_data_len = len;
1761 static void le_set_scan_enable_complete(struct hci_dev *hdev, u8 enable)
1766 case LE_SCAN_ENABLE:
1767 hci_dev_set_flag(hdev, HCI_LE_SCAN);
1768 if (hdev->le_scan_type == LE_SCAN_ACTIVE)
1769 clear_pending_adv_report(hdev);
1770 if (hci_dev_test_flag(hdev, HCI_MESH))
1771 hci_discovery_set_state(hdev, DISCOVERY_FINDING);
1774 case LE_SCAN_DISABLE:
1775 /* We do this here instead of when setting DISCOVERY_STOPPED
1776 * since the latter would potentially require waiting for
1777 * inquiry to stop too.
1779 if (has_pending_adv_report(hdev)) {
1780 struct discovery_state *d = &hdev->discovery;
1782 mgmt_device_found(hdev, &d->last_adv_addr, LE_LINK,
1783 d->last_adv_addr_type, NULL,
1784 d->last_adv_rssi, d->last_adv_flags,
1786 d->last_adv_data_len, NULL, 0, 0);
1789 /* Cancel this timer so that we don't try to disable scanning
1790 * when it's already disabled.
1792 cancel_delayed_work(&hdev->le_scan_disable);
1794 hci_dev_clear_flag(hdev, HCI_LE_SCAN);
1796 /* The HCI_LE_SCAN_INTERRUPTED flag indicates that we
1797 * interrupted scanning due to a connect request. Mark
1798 * therefore discovery as stopped.
1800 if (hci_dev_test_and_clear_flag(hdev, HCI_LE_SCAN_INTERRUPTED))
1801 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
1802 else if (!hci_dev_test_flag(hdev, HCI_LE_ADV) &&
1803 hdev->discovery.state == DISCOVERY_FINDING)
1804 queue_work(hdev->workqueue, &hdev->reenable_adv_work);
1809 bt_dev_err(hdev, "use of reserved LE_Scan_Enable param %d",
1814 hci_dev_unlock(hdev);
1817 static u8 hci_cc_le_set_scan_enable(struct hci_dev *hdev, void *data,
1818 struct sk_buff *skb)
1820 struct hci_cp_le_set_scan_enable *cp;
1821 struct hci_ev_status *rp = data;
1823 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1828 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_SCAN_ENABLE);
1832 le_set_scan_enable_complete(hdev, cp->enable);
1837 static u8 hci_cc_le_set_ext_scan_enable(struct hci_dev *hdev, void *data,
1838 struct sk_buff *skb)
1840 struct hci_cp_le_set_ext_scan_enable *cp;
1841 struct hci_ev_status *rp = data;
1843 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1848 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_EXT_SCAN_ENABLE);
1852 le_set_scan_enable_complete(hdev, cp->enable);
1857 static u8 hci_cc_le_read_num_adv_sets(struct hci_dev *hdev, void *data,
1858 struct sk_buff *skb)
1860 struct hci_rp_le_read_num_supported_adv_sets *rp = data;
1862 bt_dev_dbg(hdev, "status 0x%2.2x No of Adv sets %u", rp->status,
1868 hdev->le_num_of_adv_sets = rp->num_of_sets;
1873 static u8 hci_cc_le_read_accept_list_size(struct hci_dev *hdev, void *data,
1874 struct sk_buff *skb)
1876 struct hci_rp_le_read_accept_list_size *rp = data;
1878 bt_dev_dbg(hdev, "status 0x%2.2x size %u", rp->status, rp->size);
1883 hdev->le_accept_list_size = rp->size;
1888 static u8 hci_cc_le_clear_accept_list(struct hci_dev *hdev, void *data,
1889 struct sk_buff *skb)
1891 struct hci_ev_status *rp = data;
1893 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1899 hci_bdaddr_list_clear(&hdev->le_accept_list);
1900 hci_dev_unlock(hdev);
1905 static u8 hci_cc_le_add_to_accept_list(struct hci_dev *hdev, void *data,
1906 struct sk_buff *skb)
1908 struct hci_cp_le_add_to_accept_list *sent;
1909 struct hci_ev_status *rp = data;
1911 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1916 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_ADD_TO_ACCEPT_LIST);
1921 hci_bdaddr_list_add(&hdev->le_accept_list, &sent->bdaddr,
1923 hci_dev_unlock(hdev);
1928 static u8 hci_cc_le_del_from_accept_list(struct hci_dev *hdev, void *data,
1929 struct sk_buff *skb)
1931 struct hci_cp_le_del_from_accept_list *sent;
1932 struct hci_ev_status *rp = data;
1934 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1939 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_DEL_FROM_ACCEPT_LIST);
1944 hci_bdaddr_list_del(&hdev->le_accept_list, &sent->bdaddr,
1946 hci_dev_unlock(hdev);
1951 static u8 hci_cc_le_read_supported_states(struct hci_dev *hdev, void *data,
1952 struct sk_buff *skb)
1954 struct hci_rp_le_read_supported_states *rp = data;
1956 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1961 memcpy(hdev->le_states, rp->le_states, 8);
1966 static u8 hci_cc_le_read_def_data_len(struct hci_dev *hdev, void *data,
1967 struct sk_buff *skb)
1969 struct hci_rp_le_read_def_data_len *rp = data;
1971 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1976 hdev->le_def_tx_len = le16_to_cpu(rp->tx_len);
1977 hdev->le_def_tx_time = le16_to_cpu(rp->tx_time);
1982 static u8 hci_cc_le_write_def_data_len(struct hci_dev *hdev, void *data,
1983 struct sk_buff *skb)
1985 struct hci_cp_le_write_def_data_len *sent;
1986 struct hci_ev_status *rp = data;
1988 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1993 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_WRITE_DEF_DATA_LEN);
1997 hdev->le_def_tx_len = le16_to_cpu(sent->tx_len);
1998 hdev->le_def_tx_time = le16_to_cpu(sent->tx_time);
2003 static u8 hci_cc_le_add_to_resolv_list(struct hci_dev *hdev, void *data,
2004 struct sk_buff *skb)
2006 struct hci_cp_le_add_to_resolv_list *sent;
2007 struct hci_ev_status *rp = data;
2009 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2014 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_ADD_TO_RESOLV_LIST);
2019 hci_bdaddr_list_add_with_irk(&hdev->le_resolv_list, &sent->bdaddr,
2020 sent->bdaddr_type, sent->peer_irk,
2022 hci_dev_unlock(hdev);
2027 static u8 hci_cc_le_del_from_resolv_list(struct hci_dev *hdev, void *data,
2028 struct sk_buff *skb)
2030 struct hci_cp_le_del_from_resolv_list *sent;
2031 struct hci_ev_status *rp = data;
2033 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2038 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_DEL_FROM_RESOLV_LIST);
2043 hci_bdaddr_list_del_with_irk(&hdev->le_resolv_list, &sent->bdaddr,
2045 hci_dev_unlock(hdev);
2050 static u8 hci_cc_le_clear_resolv_list(struct hci_dev *hdev, void *data,
2051 struct sk_buff *skb)
2053 struct hci_ev_status *rp = data;
2055 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2061 hci_bdaddr_list_clear(&hdev->le_resolv_list);
2062 hci_dev_unlock(hdev);
2067 static u8 hci_cc_le_read_resolv_list_size(struct hci_dev *hdev, void *data,
2068 struct sk_buff *skb)
2070 struct hci_rp_le_read_resolv_list_size *rp = data;
2072 bt_dev_dbg(hdev, "status 0x%2.2x size %u", rp->status, rp->size);
2077 hdev->le_resolv_list_size = rp->size;
2082 static u8 hci_cc_le_set_addr_resolution_enable(struct hci_dev *hdev, void *data,
2083 struct sk_buff *skb)
2085 struct hci_ev_status *rp = data;
2088 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2093 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADDR_RESOLV_ENABLE);
2100 hci_dev_set_flag(hdev, HCI_LL_RPA_RESOLUTION);
2102 hci_dev_clear_flag(hdev, HCI_LL_RPA_RESOLUTION);
2104 hci_dev_unlock(hdev);
2109 static u8 hci_cc_le_read_max_data_len(struct hci_dev *hdev, void *data,
2110 struct sk_buff *skb)
2112 struct hci_rp_le_read_max_data_len *rp = data;
2114 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2119 hdev->le_max_tx_len = le16_to_cpu(rp->tx_len);
2120 hdev->le_max_tx_time = le16_to_cpu(rp->tx_time);
2121 hdev->le_max_rx_len = le16_to_cpu(rp->rx_len);
2122 hdev->le_max_rx_time = le16_to_cpu(rp->rx_time);
2127 static u8 hci_cc_write_le_host_supported(struct hci_dev *hdev, void *data,
2128 struct sk_buff *skb)
2130 struct hci_cp_write_le_host_supported *sent;
2131 struct hci_ev_status *rp = data;
2133 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2138 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LE_HOST_SUPPORTED);
2145 hdev->features[1][0] |= LMP_HOST_LE;
2146 hci_dev_set_flag(hdev, HCI_LE_ENABLED);
2148 hdev->features[1][0] &= ~LMP_HOST_LE;
2149 hci_dev_clear_flag(hdev, HCI_LE_ENABLED);
2150 hci_dev_clear_flag(hdev, HCI_ADVERTISING);
2154 hdev->features[1][0] |= LMP_HOST_LE_BREDR;
2156 hdev->features[1][0] &= ~LMP_HOST_LE_BREDR;
2158 hci_dev_unlock(hdev);
2163 static u8 hci_cc_set_adv_param(struct hci_dev *hdev, void *data,
2164 struct sk_buff *skb)
2166 struct hci_cp_le_set_adv_param *cp;
2167 struct hci_ev_status *rp = data;
2169 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2174 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADV_PARAM);
2179 hdev->adv_addr_type = cp->own_address_type;
2180 hci_dev_unlock(hdev);
2185 static u8 hci_cc_set_ext_adv_param(struct hci_dev *hdev, void *data,
2186 struct sk_buff *skb)
2188 struct hci_rp_le_set_ext_adv_params *rp = data;
2189 struct hci_cp_le_set_ext_adv_params *cp;
2190 struct adv_info *adv_instance;
2192 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2197 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_EXT_ADV_PARAMS);
2202 hdev->adv_addr_type = cp->own_addr_type;
2204 /* Store in hdev for instance 0 */
2205 hdev->adv_tx_power = rp->tx_power;
2207 adv_instance = hci_find_adv_instance(hdev, cp->handle);
2209 adv_instance->tx_power = rp->tx_power;
2211 /* Update adv data as tx power is known now */
2212 hci_update_adv_data(hdev, cp->handle);
2214 hci_dev_unlock(hdev);
2219 static u8 hci_cc_read_rssi(struct hci_dev *hdev, void *data,
2220 struct sk_buff *skb)
2222 struct hci_rp_read_rssi *rp = data;
2223 struct hci_conn *conn;
2225 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2232 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
2234 conn->rssi = rp->rssi;
2236 hci_dev_unlock(hdev);
2241 static u8 hci_cc_read_tx_power(struct hci_dev *hdev, void *data,
2242 struct sk_buff *skb)
2244 struct hci_cp_read_tx_power *sent;
2245 struct hci_rp_read_tx_power *rp = data;
2246 struct hci_conn *conn;
2248 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2253 sent = hci_sent_cmd_data(hdev, HCI_OP_READ_TX_POWER);
2259 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
2263 switch (sent->type) {
2265 conn->tx_power = rp->tx_power;
2268 conn->max_tx_power = rp->tx_power;
2273 hci_dev_unlock(hdev);
2277 static u8 hci_cc_write_ssp_debug_mode(struct hci_dev *hdev, void *data,
2278 struct sk_buff *skb)
2280 struct hci_ev_status *rp = data;
2283 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2288 mode = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SSP_DEBUG_MODE);
2290 hdev->ssp_debug_mode = *mode;
2295 static void hci_cs_inquiry(struct hci_dev *hdev, __u8 status)
2297 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2300 hci_conn_check_pending(hdev);
2304 set_bit(HCI_INQUIRY, &hdev->flags);
2307 static void hci_cs_create_conn(struct hci_dev *hdev, __u8 status)
2309 struct hci_cp_create_conn *cp;
2310 struct hci_conn *conn;
2312 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2314 cp = hci_sent_cmd_data(hdev, HCI_OP_CREATE_CONN);
2320 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
2322 bt_dev_dbg(hdev, "bdaddr %pMR hcon %p", &cp->bdaddr, conn);
2325 if (conn && conn->state == BT_CONNECT) {
2326 if (status != 0x0c || conn->attempt > 2) {
2327 conn->state = BT_CLOSED;
2328 hci_connect_cfm(conn, status);
2331 conn->state = BT_CONNECT2;
2335 conn = hci_conn_add(hdev, ACL_LINK, &cp->bdaddr,
2338 bt_dev_err(hdev, "no memory for new connection");
2342 hci_dev_unlock(hdev);
2345 static void hci_cs_add_sco(struct hci_dev *hdev, __u8 status)
2347 struct hci_cp_add_sco *cp;
2348 struct hci_conn *acl;
2349 struct hci_link *link;
2352 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2357 cp = hci_sent_cmd_data(hdev, HCI_OP_ADD_SCO);
2361 handle = __le16_to_cpu(cp->handle);
2363 bt_dev_dbg(hdev, "handle 0x%4.4x", handle);
2367 acl = hci_conn_hash_lookup_handle(hdev, handle);
2369 link = list_first_entry_or_null(&acl->link_list,
2370 struct hci_link, list);
2371 if (link && link->conn) {
2372 link->conn->state = BT_CLOSED;
2374 hci_connect_cfm(link->conn, status);
2375 hci_conn_del(link->conn);
2379 hci_dev_unlock(hdev);
2382 static void hci_cs_auth_requested(struct hci_dev *hdev, __u8 status)
2384 struct hci_cp_auth_requested *cp;
2385 struct hci_conn *conn;
2387 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2392 cp = hci_sent_cmd_data(hdev, HCI_OP_AUTH_REQUESTED);
2398 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2400 if (conn->state == BT_CONFIG) {
2401 hci_connect_cfm(conn, status);
2402 hci_conn_drop(conn);
2406 hci_dev_unlock(hdev);
2409 static void hci_cs_set_conn_encrypt(struct hci_dev *hdev, __u8 status)
2411 struct hci_cp_set_conn_encrypt *cp;
2412 struct hci_conn *conn;
2414 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2419 cp = hci_sent_cmd_data(hdev, HCI_OP_SET_CONN_ENCRYPT);
2425 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2427 if (conn->state == BT_CONFIG) {
2428 hci_connect_cfm(conn, status);
2429 hci_conn_drop(conn);
2433 hci_dev_unlock(hdev);
2436 static int hci_outgoing_auth_needed(struct hci_dev *hdev,
2437 struct hci_conn *conn)
2439 if (conn->state != BT_CONFIG || !conn->out)
2442 if (conn->pending_sec_level == BT_SECURITY_SDP)
2445 /* Only request authentication for SSP connections or non-SSP
2446 * devices with sec_level MEDIUM or HIGH or if MITM protection
2449 if (!hci_conn_ssp_enabled(conn) && !(conn->auth_type & 0x01) &&
2450 conn->pending_sec_level != BT_SECURITY_FIPS &&
2451 conn->pending_sec_level != BT_SECURITY_HIGH &&
2452 conn->pending_sec_level != BT_SECURITY_MEDIUM)
2458 static int hci_resolve_name(struct hci_dev *hdev,
2459 struct inquiry_entry *e)
2461 struct hci_cp_remote_name_req cp;
2463 memset(&cp, 0, sizeof(cp));
2465 bacpy(&cp.bdaddr, &e->data.bdaddr);
2466 cp.pscan_rep_mode = e->data.pscan_rep_mode;
2467 cp.pscan_mode = e->data.pscan_mode;
2468 cp.clock_offset = e->data.clock_offset;
2470 return hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp);
2473 static bool hci_resolve_next_name(struct hci_dev *hdev)
2475 struct discovery_state *discov = &hdev->discovery;
2476 struct inquiry_entry *e;
2478 if (list_empty(&discov->resolve))
2481 /* We should stop if we already spent too much time resolving names. */
2482 if (time_after(jiffies, discov->name_resolve_timeout)) {
2483 bt_dev_warn_ratelimited(hdev, "Name resolve takes too long.");
2487 e = hci_inquiry_cache_lookup_resolve(hdev, BDADDR_ANY, NAME_NEEDED);
2491 if (hci_resolve_name(hdev, e) == 0) {
2492 e->name_state = NAME_PENDING;
2499 static void hci_check_pending_name(struct hci_dev *hdev, struct hci_conn *conn,
2500 bdaddr_t *bdaddr, u8 *name, u8 name_len)
2502 struct discovery_state *discov = &hdev->discovery;
2503 struct inquiry_entry *e;
2505 /* Update the mgmt connected state if necessary. Be careful with
2506 * conn objects that exist but are not (yet) connected however.
2507 * Only those in BT_CONFIG or BT_CONNECTED states can be
2508 * considered connected.
2511 (conn->state == BT_CONFIG || conn->state == BT_CONNECTED) &&
2512 !test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
2513 mgmt_device_connected(hdev, conn, name, name_len);
2515 if (discov->state == DISCOVERY_STOPPED)
2518 if (discov->state == DISCOVERY_STOPPING)
2519 goto discov_complete;
2521 if (discov->state != DISCOVERY_RESOLVING)
2524 e = hci_inquiry_cache_lookup_resolve(hdev, bdaddr, NAME_PENDING);
2525 /* If the device was not found in a list of found devices names of which
2526 * are pending. there is no need to continue resolving a next name as it
2527 * will be done upon receiving another Remote Name Request Complete
2534 e->name_state = name ? NAME_KNOWN : NAME_NOT_KNOWN;
2535 mgmt_remote_name(hdev, bdaddr, ACL_LINK, 0x00, e->data.rssi,
2538 if (hci_resolve_next_name(hdev))
2542 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
2545 static void hci_cs_remote_name_req(struct hci_dev *hdev, __u8 status)
2547 struct hci_cp_remote_name_req *cp;
2548 struct hci_conn *conn;
2550 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2552 /* If successful wait for the name req complete event before
2553 * checking for the need to do authentication */
2557 cp = hci_sent_cmd_data(hdev, HCI_OP_REMOTE_NAME_REQ);
2563 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
2565 if (hci_dev_test_flag(hdev, HCI_MGMT))
2566 hci_check_pending_name(hdev, conn, &cp->bdaddr, NULL, 0);
2571 if (!hci_outgoing_auth_needed(hdev, conn))
2574 if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->flags)) {
2575 struct hci_cp_auth_requested auth_cp;
2577 set_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags);
2579 auth_cp.handle = __cpu_to_le16(conn->handle);
2580 hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED,
2581 sizeof(auth_cp), &auth_cp);
2585 hci_dev_unlock(hdev);
2588 static void hci_cs_read_remote_features(struct hci_dev *hdev, __u8 status)
2590 struct hci_cp_read_remote_features *cp;
2591 struct hci_conn *conn;
2593 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2598 cp = hci_sent_cmd_data(hdev, HCI_OP_READ_REMOTE_FEATURES);
2604 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2606 if (conn->state == BT_CONFIG) {
2607 hci_connect_cfm(conn, status);
2608 hci_conn_drop(conn);
2612 hci_dev_unlock(hdev);
2615 static void hci_cs_read_remote_ext_features(struct hci_dev *hdev, __u8 status)
2617 struct hci_cp_read_remote_ext_features *cp;
2618 struct hci_conn *conn;
2620 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2625 cp = hci_sent_cmd_data(hdev, HCI_OP_READ_REMOTE_EXT_FEATURES);
2631 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2633 if (conn->state == BT_CONFIG) {
2634 hci_connect_cfm(conn, status);
2635 hci_conn_drop(conn);
2639 hci_dev_unlock(hdev);
2642 static void hci_setup_sync_conn_status(struct hci_dev *hdev, __u16 handle,
2645 struct hci_conn *acl;
2646 struct hci_link *link;
2648 bt_dev_dbg(hdev, "handle 0x%4.4x status 0x%2.2x", handle, status);
2652 acl = hci_conn_hash_lookup_handle(hdev, handle);
2654 link = list_first_entry_or_null(&acl->link_list,
2655 struct hci_link, list);
2656 if (link && link->conn) {
2657 link->conn->state = BT_CLOSED;
2659 hci_connect_cfm(link->conn, status);
2660 hci_conn_del(link->conn);
2664 hci_dev_unlock(hdev);
2667 static void hci_cs_setup_sync_conn(struct hci_dev *hdev, __u8 status)
2669 struct hci_cp_setup_sync_conn *cp;
2671 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2676 cp = hci_sent_cmd_data(hdev, HCI_OP_SETUP_SYNC_CONN);
2680 hci_setup_sync_conn_status(hdev, __le16_to_cpu(cp->handle), status);
2683 static void hci_cs_enhanced_setup_sync_conn(struct hci_dev *hdev, __u8 status)
2685 struct hci_cp_enhanced_setup_sync_conn *cp;
2687 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2692 cp = hci_sent_cmd_data(hdev, HCI_OP_ENHANCED_SETUP_SYNC_CONN);
2696 hci_setup_sync_conn_status(hdev, __le16_to_cpu(cp->handle), status);
2699 static void hci_cs_sniff_mode(struct hci_dev *hdev, __u8 status)
2701 struct hci_cp_sniff_mode *cp;
2702 struct hci_conn *conn;
2704 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2709 cp = hci_sent_cmd_data(hdev, HCI_OP_SNIFF_MODE);
2715 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2717 clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->flags);
2719 if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags))
2720 hci_sco_setup(conn, status);
2723 hci_dev_unlock(hdev);
2726 static void hci_cs_exit_sniff_mode(struct hci_dev *hdev, __u8 status)
2728 struct hci_cp_exit_sniff_mode *cp;
2729 struct hci_conn *conn;
2731 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2736 cp = hci_sent_cmd_data(hdev, HCI_OP_EXIT_SNIFF_MODE);
2742 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2744 clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->flags);
2746 if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags))
2747 hci_sco_setup(conn, status);
2750 hci_dev_unlock(hdev);
2753 static void hci_cs_disconnect(struct hci_dev *hdev, u8 status)
2755 struct hci_cp_disconnect *cp;
2756 struct hci_conn_params *params;
2757 struct hci_conn *conn;
2760 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2762 /* Wait for HCI_EV_DISCONN_COMPLETE if status 0x00 and not suspended
2763 * otherwise cleanup the connection immediately.
2765 if (!status && !hdev->suspended)
2768 cp = hci_sent_cmd_data(hdev, HCI_OP_DISCONNECT);
2774 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2779 mgmt_disconnect_failed(hdev, &conn->dst, conn->type,
2780 conn->dst_type, status);
2782 if (conn->type == LE_LINK && conn->role == HCI_ROLE_SLAVE) {
2783 hdev->cur_adv_instance = conn->adv_instance;
2784 hci_enable_advertising(hdev);
2790 mgmt_conn = test_and_clear_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags);
2792 if (conn->type == ACL_LINK) {
2793 if (test_and_clear_bit(HCI_CONN_FLUSH_KEY, &conn->flags))
2794 hci_remove_link_key(hdev, &conn->dst);
2797 params = hci_conn_params_lookup(hdev, &conn->dst, conn->dst_type);
2799 switch (params->auto_connect) {
2800 case HCI_AUTO_CONN_LINK_LOSS:
2801 if (cp->reason != HCI_ERROR_CONNECTION_TIMEOUT)
2805 case HCI_AUTO_CONN_DIRECT:
2806 case HCI_AUTO_CONN_ALWAYS:
2807 list_del_init(¶ms->action);
2808 list_add(¶ms->action, &hdev->pend_le_conns);
2816 mgmt_device_disconnected(hdev, &conn->dst, conn->type, conn->dst_type,
2817 cp->reason, mgmt_conn);
2819 hci_disconn_cfm(conn, cp->reason);
2822 /* If the disconnection failed for any reason, the upper layer
2823 * does not retry to disconnect in current implementation.
2824 * Hence, we need to do some basic cleanup here and re-enable
2825 * advertising if necessary.
2829 hci_dev_unlock(hdev);
2832 static u8 ev_bdaddr_type(struct hci_dev *hdev, u8 type, bool *resolved)
2834 /* When using controller based address resolution, then the new
2835 * address types 0x02 and 0x03 are used. These types need to be
2836 * converted back into either public address or random address type
2839 case ADDR_LE_DEV_PUBLIC_RESOLVED:
2842 return ADDR_LE_DEV_PUBLIC;
2843 case ADDR_LE_DEV_RANDOM_RESOLVED:
2846 return ADDR_LE_DEV_RANDOM;
2854 static void cs_le_create_conn(struct hci_dev *hdev, bdaddr_t *peer_addr,
2855 u8 peer_addr_type, u8 own_address_type,
2858 struct hci_conn *conn;
2860 conn = hci_conn_hash_lookup_le(hdev, peer_addr,
2865 own_address_type = ev_bdaddr_type(hdev, own_address_type, NULL);
2867 /* Store the initiator and responder address information which
2868 * is needed for SMP. These values will not change during the
2869 * lifetime of the connection.
2871 conn->init_addr_type = own_address_type;
2872 if (own_address_type == ADDR_LE_DEV_RANDOM)
2873 bacpy(&conn->init_addr, &hdev->random_addr);
2875 bacpy(&conn->init_addr, &hdev->bdaddr);
2877 conn->resp_addr_type = peer_addr_type;
2878 bacpy(&conn->resp_addr, peer_addr);
2881 static void hci_cs_le_create_conn(struct hci_dev *hdev, u8 status)
2883 struct hci_cp_le_create_conn *cp;
2885 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2887 /* All connection failure handling is taken care of by the
2888 * hci_conn_failed function which is triggered by the HCI
2889 * request completion callbacks used for connecting.
2894 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_CREATE_CONN);
2900 cs_le_create_conn(hdev, &cp->peer_addr, cp->peer_addr_type,
2901 cp->own_address_type, cp->filter_policy);
2903 hci_dev_unlock(hdev);
2906 static void hci_cs_le_ext_create_conn(struct hci_dev *hdev, u8 status)
2908 struct hci_cp_le_ext_create_conn *cp;
2910 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2912 /* All connection failure handling is taken care of by the
2913 * hci_conn_failed function which is triggered by the HCI
2914 * request completion callbacks used for connecting.
2919 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_EXT_CREATE_CONN);
2925 cs_le_create_conn(hdev, &cp->peer_addr, cp->peer_addr_type,
2926 cp->own_addr_type, cp->filter_policy);
2928 hci_dev_unlock(hdev);
2931 static void hci_cs_le_read_remote_features(struct hci_dev *hdev, u8 status)
2933 struct hci_cp_le_read_remote_features *cp;
2934 struct hci_conn *conn;
2936 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2941 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_READ_REMOTE_FEATURES);
2947 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2949 if (conn->state == BT_CONFIG) {
2950 hci_connect_cfm(conn, status);
2951 hci_conn_drop(conn);
2955 hci_dev_unlock(hdev);
2958 static void hci_cs_le_start_enc(struct hci_dev *hdev, u8 status)
2960 struct hci_cp_le_start_enc *cp;
2961 struct hci_conn *conn;
2963 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2970 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_START_ENC);
2974 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2978 if (conn->state != BT_CONNECTED)
2981 hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE);
2982 hci_conn_drop(conn);
2985 hci_dev_unlock(hdev);
2988 static void hci_cs_switch_role(struct hci_dev *hdev, u8 status)
2990 struct hci_cp_switch_role *cp;
2991 struct hci_conn *conn;
2993 BT_DBG("%s status 0x%2.2x", hdev->name, status);
2998 cp = hci_sent_cmd_data(hdev, HCI_OP_SWITCH_ROLE);
3004 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
3006 clear_bit(HCI_CONN_RSWITCH_PEND, &conn->flags);
3008 hci_dev_unlock(hdev);
3011 static void hci_inquiry_complete_evt(struct hci_dev *hdev, void *data,
3012 struct sk_buff *skb)
3014 struct hci_ev_status *ev = data;
3015 struct discovery_state *discov = &hdev->discovery;
3016 struct inquiry_entry *e;
3018 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
3020 hci_conn_check_pending(hdev);
3022 if (!test_and_clear_bit(HCI_INQUIRY, &hdev->flags))
3025 smp_mb__after_atomic(); /* wake_up_bit advises about this barrier */
3026 wake_up_bit(&hdev->flags, HCI_INQUIRY);
3028 if (!hci_dev_test_flag(hdev, HCI_MGMT))
3033 if (discov->state != DISCOVERY_FINDING)
3036 if (list_empty(&discov->resolve)) {
3037 /* When BR/EDR inquiry is active and no LE scanning is in
3038 * progress, then change discovery state to indicate completion.
3040 * When running LE scanning and BR/EDR inquiry simultaneously
3041 * and the LE scan already finished, then change the discovery
3042 * state to indicate completion.
3044 if (!hci_dev_test_flag(hdev, HCI_LE_SCAN) ||
3045 !test_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks))
3046 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
3050 e = hci_inquiry_cache_lookup_resolve(hdev, BDADDR_ANY, NAME_NEEDED);
3051 if (e && hci_resolve_name(hdev, e) == 0) {
3052 e->name_state = NAME_PENDING;
3053 hci_discovery_set_state(hdev, DISCOVERY_RESOLVING);
3054 discov->name_resolve_timeout = jiffies + NAME_RESOLVE_DURATION;
3056 /* When BR/EDR inquiry is active and no LE scanning is in
3057 * progress, then change discovery state to indicate completion.
3059 * When running LE scanning and BR/EDR inquiry simultaneously
3060 * and the LE scan already finished, then change the discovery
3061 * state to indicate completion.
3063 if (!hci_dev_test_flag(hdev, HCI_LE_SCAN) ||
3064 !test_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks))
3065 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
3069 hci_dev_unlock(hdev);
3072 static void hci_inquiry_result_evt(struct hci_dev *hdev, void *edata,
3073 struct sk_buff *skb)
3075 struct hci_ev_inquiry_result *ev = edata;
3076 struct inquiry_data data;
3079 if (!hci_ev_skb_pull(hdev, skb, HCI_EV_INQUIRY_RESULT,
3080 flex_array_size(ev, info, ev->num)))
3083 bt_dev_dbg(hdev, "num %d", ev->num);
3088 if (hci_dev_test_flag(hdev, HCI_PERIODIC_INQ))
3093 for (i = 0; i < ev->num; i++) {
3094 struct inquiry_info *info = &ev->info[i];
3097 bacpy(&data.bdaddr, &info->bdaddr);
3098 data.pscan_rep_mode = info->pscan_rep_mode;
3099 data.pscan_period_mode = info->pscan_period_mode;
3100 data.pscan_mode = info->pscan_mode;
3101 memcpy(data.dev_class, info->dev_class, 3);
3102 data.clock_offset = info->clock_offset;
3103 data.rssi = HCI_RSSI_INVALID;
3104 data.ssp_mode = 0x00;
3106 flags = hci_inquiry_cache_update(hdev, &data, false);
3108 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
3109 info->dev_class, HCI_RSSI_INVALID,
3110 flags, NULL, 0, NULL, 0, 0);
3113 hci_dev_unlock(hdev);
3116 static void hci_conn_complete_evt(struct hci_dev *hdev, void *data,
3117 struct sk_buff *skb)
3119 struct hci_ev_conn_complete *ev = data;
3120 struct hci_conn *conn;
3121 u8 status = ev->status;
3123 bt_dev_dbg(hdev, "status 0x%2.2x", status);
3127 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr);
3129 /* In case of error status and there is no connection pending
3130 * just unlock as there is nothing to cleanup.
3135 /* Connection may not exist if auto-connected. Check the bredr
3136 * allowlist to see if this device is allowed to auto connect.
3137 * If link is an ACL type, create a connection class
3140 * Auto-connect will only occur if the event filter is
3141 * programmed with a given address. Right now, event filter is
3142 * only used during suspend.
3144 if (ev->link_type == ACL_LINK &&
3145 hci_bdaddr_list_lookup_with_flags(&hdev->accept_list,
3148 conn = hci_conn_add(hdev, ev->link_type, &ev->bdaddr,
3151 bt_dev_err(hdev, "no memory for new conn");
3155 if (ev->link_type != SCO_LINK)
3158 conn = hci_conn_hash_lookup_ba(hdev, ESCO_LINK,
3163 conn->type = SCO_LINK;
3167 /* The HCI_Connection_Complete event is only sent once per connection.
3168 * Processing it more than once per connection can corrupt kernel memory.
3170 * As the connection handle is set here for the first time, it indicates
3171 * whether the connection is already set up.
3173 if (conn->handle != HCI_CONN_HANDLE_UNSET) {
3174 bt_dev_err(hdev, "Ignoring HCI_Connection_Complete for existing connection");
3179 conn->handle = __le16_to_cpu(ev->handle);
3180 if (conn->handle > HCI_CONN_HANDLE_MAX) {
3181 bt_dev_err(hdev, "Invalid handle: 0x%4.4x > 0x%4.4x",
3182 conn->handle, HCI_CONN_HANDLE_MAX);
3183 status = HCI_ERROR_INVALID_PARAMETERS;
3187 if (conn->type == ACL_LINK) {
3188 conn->state = BT_CONFIG;
3189 hci_conn_hold(conn);
3191 if (!conn->out && !hci_conn_ssp_enabled(conn) &&
3192 !hci_find_link_key(hdev, &ev->bdaddr))
3193 conn->disc_timeout = HCI_PAIRING_TIMEOUT;
3195 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
3197 conn->state = BT_CONNECTED;
3199 hci_debugfs_create_conn(conn);
3200 hci_conn_add_sysfs(conn);
3202 if (test_bit(HCI_AUTH, &hdev->flags))
3203 set_bit(HCI_CONN_AUTH, &conn->flags);
3205 if (test_bit(HCI_ENCRYPT, &hdev->flags))
3206 set_bit(HCI_CONN_ENCRYPT, &conn->flags);
3208 /* Get remote features */
3209 if (conn->type == ACL_LINK) {
3210 struct hci_cp_read_remote_features cp;
3211 cp.handle = ev->handle;
3212 hci_send_cmd(hdev, HCI_OP_READ_REMOTE_FEATURES,
3215 hci_update_scan(hdev);
3218 /* Set packet type for incoming connection */
3219 if (!conn->out && hdev->hci_ver < BLUETOOTH_VER_2_0) {
3220 struct hci_cp_change_conn_ptype cp;
3221 cp.handle = ev->handle;
3222 cp.pkt_type = cpu_to_le16(conn->pkt_type);
3223 hci_send_cmd(hdev, HCI_OP_CHANGE_CONN_PTYPE, sizeof(cp),
3228 if (conn->type == ACL_LINK)
3229 hci_sco_setup(conn, ev->status);
3233 hci_conn_failed(conn, status);
3234 } else if (ev->link_type == SCO_LINK) {
3235 switch (conn->setting & SCO_AIRMODE_MASK) {
3236 case SCO_AIRMODE_CVSD:
3238 hdev->notify(hdev, HCI_NOTIFY_ENABLE_SCO_CVSD);
3242 hci_connect_cfm(conn, status);
3246 hci_dev_unlock(hdev);
3248 hci_conn_check_pending(hdev);
3251 static void hci_reject_conn(struct hci_dev *hdev, bdaddr_t *bdaddr)
3253 struct hci_cp_reject_conn_req cp;
3255 bacpy(&cp.bdaddr, bdaddr);
3256 cp.reason = HCI_ERROR_REJ_BAD_ADDR;
3257 hci_send_cmd(hdev, HCI_OP_REJECT_CONN_REQ, sizeof(cp), &cp);
3260 static void hci_conn_request_evt(struct hci_dev *hdev, void *data,
3261 struct sk_buff *skb)
3263 struct hci_ev_conn_request *ev = data;
3264 int mask = hdev->link_mode;
3265 struct inquiry_entry *ie;
3266 struct hci_conn *conn;
3269 bt_dev_dbg(hdev, "bdaddr %pMR type 0x%x", &ev->bdaddr, ev->link_type);
3271 mask |= hci_proto_connect_ind(hdev, &ev->bdaddr, ev->link_type,
3274 if (!(mask & HCI_LM_ACCEPT)) {
3275 hci_reject_conn(hdev, &ev->bdaddr);
3281 if (hci_bdaddr_list_lookup(&hdev->reject_list, &ev->bdaddr,
3283 hci_reject_conn(hdev, &ev->bdaddr);
3287 /* Require HCI_CONNECTABLE or an accept list entry to accept the
3288 * connection. These features are only touched through mgmt so
3289 * only do the checks if HCI_MGMT is set.
3291 if (hci_dev_test_flag(hdev, HCI_MGMT) &&
3292 !hci_dev_test_flag(hdev, HCI_CONNECTABLE) &&
3293 !hci_bdaddr_list_lookup_with_flags(&hdev->accept_list, &ev->bdaddr,
3295 hci_reject_conn(hdev, &ev->bdaddr);
3299 /* Connection accepted */
3301 ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
3303 memcpy(ie->data.dev_class, ev->dev_class, 3);
3305 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type,
3308 conn = hci_conn_add(hdev, ev->link_type, &ev->bdaddr,
3311 bt_dev_err(hdev, "no memory for new connection");
3316 memcpy(conn->dev_class, ev->dev_class, 3);
3318 hci_dev_unlock(hdev);
3320 if (ev->link_type == ACL_LINK ||
3321 (!(flags & HCI_PROTO_DEFER) && !lmp_esco_capable(hdev))) {
3322 struct hci_cp_accept_conn_req cp;
3323 conn->state = BT_CONNECT;
3325 bacpy(&cp.bdaddr, &ev->bdaddr);
3327 if (lmp_rswitch_capable(hdev) && (mask & HCI_LM_MASTER))
3328 cp.role = 0x00; /* Become central */
3330 cp.role = 0x01; /* Remain peripheral */
3332 hci_send_cmd(hdev, HCI_OP_ACCEPT_CONN_REQ, sizeof(cp), &cp);
3333 } else if (!(flags & HCI_PROTO_DEFER)) {
3334 struct hci_cp_accept_sync_conn_req cp;
3335 conn->state = BT_CONNECT;
3337 bacpy(&cp.bdaddr, &ev->bdaddr);
3338 cp.pkt_type = cpu_to_le16(conn->pkt_type);
3340 cp.tx_bandwidth = cpu_to_le32(0x00001f40);
3341 cp.rx_bandwidth = cpu_to_le32(0x00001f40);
3342 cp.max_latency = cpu_to_le16(0xffff);
3343 cp.content_format = cpu_to_le16(hdev->voice_setting);
3344 cp.retrans_effort = 0xff;
3346 hci_send_cmd(hdev, HCI_OP_ACCEPT_SYNC_CONN_REQ, sizeof(cp),
3349 conn->state = BT_CONNECT2;
3350 hci_connect_cfm(conn, 0);
3355 hci_dev_unlock(hdev);
3358 static u8 hci_to_mgmt_reason(u8 err)
3361 case HCI_ERROR_CONNECTION_TIMEOUT:
3362 return MGMT_DEV_DISCONN_TIMEOUT;
3363 case HCI_ERROR_REMOTE_USER_TERM:
3364 case HCI_ERROR_REMOTE_LOW_RESOURCES:
3365 case HCI_ERROR_REMOTE_POWER_OFF:
3366 return MGMT_DEV_DISCONN_REMOTE;
3367 case HCI_ERROR_LOCAL_HOST_TERM:
3368 return MGMT_DEV_DISCONN_LOCAL_HOST;
3370 return MGMT_DEV_DISCONN_UNKNOWN;
3374 static void hci_disconn_complete_evt(struct hci_dev *hdev, void *data,
3375 struct sk_buff *skb)
3377 struct hci_ev_disconn_complete *ev = data;
3379 struct hci_conn_params *params;
3380 struct hci_conn *conn;
3381 bool mgmt_connected;
3383 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
3387 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3392 mgmt_disconnect_failed(hdev, &conn->dst, conn->type,
3393 conn->dst_type, ev->status);
3397 conn->state = BT_CLOSED;
3399 mgmt_connected = test_and_clear_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags);
3401 if (test_bit(HCI_CONN_AUTH_FAILURE, &conn->flags))
3402 reason = MGMT_DEV_DISCONN_AUTH_FAILURE;
3404 reason = hci_to_mgmt_reason(ev->reason);
3406 mgmt_device_disconnected(hdev, &conn->dst, conn->type, conn->dst_type,
3407 reason, mgmt_connected);
3409 if (conn->type == ACL_LINK) {
3410 if (test_and_clear_bit(HCI_CONN_FLUSH_KEY, &conn->flags))
3411 hci_remove_link_key(hdev, &conn->dst);
3413 hci_update_scan(hdev);
3416 params = hci_conn_params_lookup(hdev, &conn->dst, conn->dst_type);
3418 switch (params->auto_connect) {
3419 case HCI_AUTO_CONN_LINK_LOSS:
3420 if (ev->reason != HCI_ERROR_CONNECTION_TIMEOUT)
3424 case HCI_AUTO_CONN_DIRECT:
3425 case HCI_AUTO_CONN_ALWAYS:
3426 list_del_init(¶ms->action);
3427 list_add(¶ms->action, &hdev->pend_le_conns);
3428 hci_update_passive_scan(hdev);
3436 hci_disconn_cfm(conn, ev->reason);
3438 /* Re-enable advertising if necessary, since it might
3439 * have been disabled by the connection. From the
3440 * HCI_LE_Set_Advertise_Enable command description in
3441 * the core specification (v4.0):
3442 * "The Controller shall continue advertising until the Host
3443 * issues an LE_Set_Advertise_Enable command with
3444 * Advertising_Enable set to 0x00 (Advertising is disabled)
3445 * or until a connection is created or until the Advertising
3446 * is timed out due to Directed Advertising."
3448 if (conn->type == LE_LINK && conn->role == HCI_ROLE_SLAVE) {
3449 hdev->cur_adv_instance = conn->adv_instance;
3450 hci_enable_advertising(hdev);
3456 hci_dev_unlock(hdev);
3459 static void hci_auth_complete_evt(struct hci_dev *hdev, void *data,
3460 struct sk_buff *skb)
3462 struct hci_ev_auth_complete *ev = data;
3463 struct hci_conn *conn;
3465 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
3469 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3474 clear_bit(HCI_CONN_AUTH_FAILURE, &conn->flags);
3476 if (!hci_conn_ssp_enabled(conn) &&
3477 test_bit(HCI_CONN_REAUTH_PEND, &conn->flags)) {
3478 bt_dev_info(hdev, "re-auth of legacy device is not possible.");
3480 set_bit(HCI_CONN_AUTH, &conn->flags);
3481 conn->sec_level = conn->pending_sec_level;
3484 if (ev->status == HCI_ERROR_PIN_OR_KEY_MISSING)
3485 set_bit(HCI_CONN_AUTH_FAILURE, &conn->flags);
3487 mgmt_auth_failed(conn, ev->status);
3490 clear_bit(HCI_CONN_AUTH_PEND, &conn->flags);
3491 clear_bit(HCI_CONN_REAUTH_PEND, &conn->flags);
3493 if (conn->state == BT_CONFIG) {
3494 if (!ev->status && hci_conn_ssp_enabled(conn)) {
3495 struct hci_cp_set_conn_encrypt cp;
3496 cp.handle = ev->handle;
3498 hci_send_cmd(hdev, HCI_OP_SET_CONN_ENCRYPT, sizeof(cp),
3501 conn->state = BT_CONNECTED;
3502 hci_connect_cfm(conn, ev->status);
3503 hci_conn_drop(conn);
3506 hci_auth_cfm(conn, ev->status);
3508 hci_conn_hold(conn);
3509 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
3510 hci_conn_drop(conn);
3513 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) {
3515 struct hci_cp_set_conn_encrypt cp;
3516 cp.handle = ev->handle;
3518 hci_send_cmd(hdev, HCI_OP_SET_CONN_ENCRYPT, sizeof(cp),
3521 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
3522 hci_encrypt_cfm(conn, ev->status);
3527 hci_dev_unlock(hdev);
3530 static void hci_remote_name_evt(struct hci_dev *hdev, void *data,
3531 struct sk_buff *skb)
3533 struct hci_ev_remote_name *ev = data;
3534 struct hci_conn *conn;
3536 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
3538 hci_conn_check_pending(hdev);
3542 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
3544 if (!hci_dev_test_flag(hdev, HCI_MGMT))
3547 if (ev->status == 0)
3548 hci_check_pending_name(hdev, conn, &ev->bdaddr, ev->name,
3549 strnlen(ev->name, HCI_MAX_NAME_LENGTH));
3551 hci_check_pending_name(hdev, conn, &ev->bdaddr, NULL, 0);
3557 if (!hci_outgoing_auth_needed(hdev, conn))
3560 if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->flags)) {
3561 struct hci_cp_auth_requested cp;
3563 set_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags);
3565 cp.handle = __cpu_to_le16(conn->handle);
3566 hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED, sizeof(cp), &cp);
3570 hci_dev_unlock(hdev);
3573 static void hci_encrypt_change_evt(struct hci_dev *hdev, void *data,
3574 struct sk_buff *skb)
3576 struct hci_ev_encrypt_change *ev = data;
3577 struct hci_conn *conn;
3579 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
3583 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3589 /* Encryption implies authentication */
3590 set_bit(HCI_CONN_AUTH, &conn->flags);
3591 set_bit(HCI_CONN_ENCRYPT, &conn->flags);
3592 conn->sec_level = conn->pending_sec_level;
3594 /* P-256 authentication key implies FIPS */
3595 if (conn->key_type == HCI_LK_AUTH_COMBINATION_P256)
3596 set_bit(HCI_CONN_FIPS, &conn->flags);
3598 if ((conn->type == ACL_LINK && ev->encrypt == 0x02) ||
3599 conn->type == LE_LINK)
3600 set_bit(HCI_CONN_AES_CCM, &conn->flags);
3602 clear_bit(HCI_CONN_ENCRYPT, &conn->flags);
3603 clear_bit(HCI_CONN_AES_CCM, &conn->flags);
3607 /* We should disregard the current RPA and generate a new one
3608 * whenever the encryption procedure fails.
3610 if (ev->status && conn->type == LE_LINK) {
3611 hci_dev_set_flag(hdev, HCI_RPA_EXPIRED);
3612 hci_adv_instances_set_rpa_expired(hdev, true);
3615 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
3617 /* Check link security requirements are met */
3618 if (!hci_conn_check_link_mode(conn))
3619 ev->status = HCI_ERROR_AUTH_FAILURE;
3621 if (ev->status && conn->state == BT_CONNECTED) {
3622 if (ev->status == HCI_ERROR_PIN_OR_KEY_MISSING)
3623 set_bit(HCI_CONN_AUTH_FAILURE, &conn->flags);
3625 /* Notify upper layers so they can cleanup before
3628 hci_encrypt_cfm(conn, ev->status);
3629 hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE);
3630 hci_conn_drop(conn);
3634 /* Try reading the encryption key size for encrypted ACL links */
3635 if (!ev->status && ev->encrypt && conn->type == ACL_LINK) {
3636 struct hci_cp_read_enc_key_size cp;
3638 /* Only send HCI_Read_Encryption_Key_Size if the
3639 * controller really supports it. If it doesn't, assume
3640 * the default size (16).
3642 if (!(hdev->commands[20] & 0x10)) {
3643 conn->enc_key_size = HCI_LINK_KEY_SIZE;
3647 cp.handle = cpu_to_le16(conn->handle);
3648 if (hci_send_cmd(hdev, HCI_OP_READ_ENC_KEY_SIZE,
3650 bt_dev_err(hdev, "sending read key size failed");
3651 conn->enc_key_size = HCI_LINK_KEY_SIZE;
3658 /* Set the default Authenticated Payload Timeout after
3659 * an LE Link is established. As per Core Spec v5.0, Vol 2, Part B
3660 * Section 3.3, the HCI command WRITE_AUTH_PAYLOAD_TIMEOUT should be
3661 * sent when the link is active and Encryption is enabled, the conn
3662 * type can be either LE or ACL and controller must support LMP Ping.
3663 * Ensure for AES-CCM encryption as well.
3665 if (test_bit(HCI_CONN_ENCRYPT, &conn->flags) &&
3666 test_bit(HCI_CONN_AES_CCM, &conn->flags) &&
3667 ((conn->type == ACL_LINK && lmp_ping_capable(hdev)) ||
3668 (conn->type == LE_LINK && (hdev->le_features[0] & HCI_LE_PING)))) {
3669 struct hci_cp_write_auth_payload_to cp;
3671 cp.handle = cpu_to_le16(conn->handle);
3672 cp.timeout = cpu_to_le16(hdev->auth_payload_timeout);
3673 if (hci_send_cmd(conn->hdev, HCI_OP_WRITE_AUTH_PAYLOAD_TO,
3675 bt_dev_err(hdev, "write auth payload timeout failed");
3683 hci_encrypt_cfm(conn, ev->status);
3686 hci_dev_unlock(hdev);
3689 static void hci_change_link_key_complete_evt(struct hci_dev *hdev, void *data,
3690 struct sk_buff *skb)
3692 struct hci_ev_change_link_key_complete *ev = data;
3693 struct hci_conn *conn;
3695 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
3699 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3702 set_bit(HCI_CONN_SECURE, &conn->flags);
3704 clear_bit(HCI_CONN_AUTH_PEND, &conn->flags);
3706 hci_key_change_cfm(conn, ev->status);
3709 hci_dev_unlock(hdev);
3712 static void hci_remote_features_evt(struct hci_dev *hdev, void *data,
3713 struct sk_buff *skb)
3715 struct hci_ev_remote_features *ev = data;
3716 struct hci_conn *conn;
3718 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
3722 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3727 memcpy(conn->features[0], ev->features, 8);
3729 if (conn->state != BT_CONFIG)
3732 if (!ev->status && lmp_ext_feat_capable(hdev) &&
3733 lmp_ext_feat_capable(conn)) {
3734 struct hci_cp_read_remote_ext_features cp;
3735 cp.handle = ev->handle;
3737 hci_send_cmd(hdev, HCI_OP_READ_REMOTE_EXT_FEATURES,
3742 if (!ev->status && !test_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags)) {
3743 struct hci_cp_remote_name_req cp;
3744 memset(&cp, 0, sizeof(cp));
3745 bacpy(&cp.bdaddr, &conn->dst);
3746 cp.pscan_rep_mode = 0x02;
3747 hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp);
3748 } else if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
3749 mgmt_device_connected(hdev, conn, NULL, 0);
3751 if (!hci_outgoing_auth_needed(hdev, conn)) {
3752 conn->state = BT_CONNECTED;
3753 hci_connect_cfm(conn, ev->status);
3754 hci_conn_drop(conn);
3758 hci_dev_unlock(hdev);
3761 static inline void handle_cmd_cnt_and_timer(struct hci_dev *hdev, u8 ncmd)
3763 cancel_delayed_work(&hdev->cmd_timer);
3766 if (!test_bit(HCI_RESET, &hdev->flags)) {
3768 cancel_delayed_work(&hdev->ncmd_timer);
3769 atomic_set(&hdev->cmd_cnt, 1);
3771 if (!hci_dev_test_flag(hdev, HCI_CMD_DRAIN_WORKQUEUE))
3772 queue_delayed_work(hdev->workqueue, &hdev->ncmd_timer,
3779 static u8 hci_cc_le_read_buffer_size_v2(struct hci_dev *hdev, void *data,
3780 struct sk_buff *skb)
3782 struct hci_rp_le_read_buffer_size_v2 *rp = data;
3784 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
3789 hdev->le_mtu = __le16_to_cpu(rp->acl_mtu);
3790 hdev->le_pkts = rp->acl_max_pkt;
3791 hdev->iso_mtu = __le16_to_cpu(rp->iso_mtu);
3792 hdev->iso_pkts = rp->iso_max_pkt;
3794 hdev->le_cnt = hdev->le_pkts;
3795 hdev->iso_cnt = hdev->iso_pkts;
3797 BT_DBG("%s acl mtu %d:%d iso mtu %d:%d", hdev->name, hdev->acl_mtu,
3798 hdev->acl_pkts, hdev->iso_mtu, hdev->iso_pkts);
3803 static u8 hci_cc_le_set_cig_params(struct hci_dev *hdev, void *data,
3804 struct sk_buff *skb)
3806 struct hci_rp_le_set_cig_params *rp = data;
3807 struct hci_conn *conn;
3810 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
3815 while ((conn = hci_conn_hash_lookup_cig(hdev, rp->cig_id))) {
3816 conn->state = BT_CLOSED;
3817 hci_connect_cfm(conn, rp->status);
3825 list_for_each_entry_rcu(conn, &hdev->conn_hash.list, list) {
3826 if (conn->type != ISO_LINK ||
3827 conn->iso_qos.ucast.cig != rp->cig_id ||
3828 conn->state == BT_CONNECTED)
3831 conn->handle = __le16_to_cpu(rp->handle[i++]);
3833 bt_dev_dbg(hdev, "%p handle 0x%4.4x parent %p", conn,
3834 conn->handle, conn->parent);
3836 /* Create CIS if LE is already connected */
3837 if (conn->parent && conn->parent->state == BT_CONNECTED) {
3839 hci_le_create_cis(conn);
3843 if (i == rp->num_handles)
3850 hci_dev_unlock(hdev);
3855 static u8 hci_cc_le_setup_iso_path(struct hci_dev *hdev, void *data,
3856 struct sk_buff *skb)
3858 struct hci_rp_le_setup_iso_path *rp = data;
3859 struct hci_cp_le_setup_iso_path *cp;
3860 struct hci_conn *conn;
3862 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
3864 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SETUP_ISO_PATH);
3870 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
3875 hci_connect_cfm(conn, rp->status);
3880 switch (cp->direction) {
3881 /* Input (Host to Controller) */
3883 /* Only confirm connection if output only */
3884 if (conn->iso_qos.ucast.out.sdu && !conn->iso_qos.ucast.in.sdu)
3885 hci_connect_cfm(conn, rp->status);
3887 /* Output (Controller to Host) */
3889 /* Confirm connection since conn->iso_qos is always configured
3892 hci_connect_cfm(conn, rp->status);
3897 hci_dev_unlock(hdev);
3901 static void hci_cs_le_create_big(struct hci_dev *hdev, u8 status)
3903 bt_dev_dbg(hdev, "status 0x%2.2x", status);
3906 static u8 hci_cc_set_per_adv_param(struct hci_dev *hdev, void *data,
3907 struct sk_buff *skb)
3909 struct hci_ev_status *rp = data;
3910 struct hci_cp_le_set_per_adv_params *cp;
3912 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
3917 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_PER_ADV_PARAMS);
3921 /* TODO: set the conn state */
3925 static u8 hci_cc_le_set_per_adv_enable(struct hci_dev *hdev, void *data,
3926 struct sk_buff *skb)
3928 struct hci_ev_status *rp = data;
3931 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
3936 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_PER_ADV_ENABLE);
3943 hci_dev_set_flag(hdev, HCI_LE_PER_ADV);
3945 hci_dev_clear_flag(hdev, HCI_LE_PER_ADV);
3947 hci_dev_unlock(hdev);
3952 #define HCI_CC_VL(_op, _func, _min, _max) \
3960 #define HCI_CC(_op, _func, _len) \
3961 HCI_CC_VL(_op, _func, _len, _len)
3963 #define HCI_CC_STATUS(_op, _func) \
3964 HCI_CC(_op, _func, sizeof(struct hci_ev_status))
3966 static const struct hci_cc {
3968 u8 (*func)(struct hci_dev *hdev, void *data, struct sk_buff *skb);
3971 } hci_cc_table[] = {
3972 HCI_CC_STATUS(HCI_OP_INQUIRY_CANCEL, hci_cc_inquiry_cancel),
3973 HCI_CC_STATUS(HCI_OP_PERIODIC_INQ, hci_cc_periodic_inq),
3974 HCI_CC_STATUS(HCI_OP_EXIT_PERIODIC_INQ, hci_cc_exit_periodic_inq),
3975 HCI_CC_STATUS(HCI_OP_REMOTE_NAME_REQ_CANCEL,
3976 hci_cc_remote_name_req_cancel),
3977 HCI_CC(HCI_OP_ROLE_DISCOVERY, hci_cc_role_discovery,
3978 sizeof(struct hci_rp_role_discovery)),
3979 HCI_CC(HCI_OP_READ_LINK_POLICY, hci_cc_read_link_policy,
3980 sizeof(struct hci_rp_read_link_policy)),
3981 HCI_CC(HCI_OP_WRITE_LINK_POLICY, hci_cc_write_link_policy,
3982 sizeof(struct hci_rp_write_link_policy)),
3983 HCI_CC(HCI_OP_READ_DEF_LINK_POLICY, hci_cc_read_def_link_policy,
3984 sizeof(struct hci_rp_read_def_link_policy)),
3985 HCI_CC_STATUS(HCI_OP_WRITE_DEF_LINK_POLICY,
3986 hci_cc_write_def_link_policy),
3987 HCI_CC_STATUS(HCI_OP_RESET, hci_cc_reset),
3988 HCI_CC(HCI_OP_READ_STORED_LINK_KEY, hci_cc_read_stored_link_key,
3989 sizeof(struct hci_rp_read_stored_link_key)),
3990 HCI_CC(HCI_OP_DELETE_STORED_LINK_KEY, hci_cc_delete_stored_link_key,
3991 sizeof(struct hci_rp_delete_stored_link_key)),
3992 HCI_CC_STATUS(HCI_OP_WRITE_LOCAL_NAME, hci_cc_write_local_name),
3993 HCI_CC(HCI_OP_READ_LOCAL_NAME, hci_cc_read_local_name,
3994 sizeof(struct hci_rp_read_local_name)),
3995 HCI_CC_STATUS(HCI_OP_WRITE_AUTH_ENABLE, hci_cc_write_auth_enable),
3996 HCI_CC_STATUS(HCI_OP_WRITE_ENCRYPT_MODE, hci_cc_write_encrypt_mode),
3997 HCI_CC_STATUS(HCI_OP_WRITE_SCAN_ENABLE, hci_cc_write_scan_enable),
3998 HCI_CC_STATUS(HCI_OP_SET_EVENT_FLT, hci_cc_set_event_filter),
3999 HCI_CC(HCI_OP_READ_CLASS_OF_DEV, hci_cc_read_class_of_dev,
4000 sizeof(struct hci_rp_read_class_of_dev)),
4001 HCI_CC_STATUS(HCI_OP_WRITE_CLASS_OF_DEV, hci_cc_write_class_of_dev),
4002 HCI_CC(HCI_OP_READ_VOICE_SETTING, hci_cc_read_voice_setting,
4003 sizeof(struct hci_rp_read_voice_setting)),
4004 HCI_CC_STATUS(HCI_OP_WRITE_VOICE_SETTING, hci_cc_write_voice_setting),
4005 HCI_CC(HCI_OP_READ_NUM_SUPPORTED_IAC, hci_cc_read_num_supported_iac,
4006 sizeof(struct hci_rp_read_num_supported_iac)),
4007 HCI_CC_STATUS(HCI_OP_WRITE_SSP_MODE, hci_cc_write_ssp_mode),
4008 HCI_CC_STATUS(HCI_OP_WRITE_SC_SUPPORT, hci_cc_write_sc_support),
4009 HCI_CC(HCI_OP_READ_AUTH_PAYLOAD_TO, hci_cc_read_auth_payload_timeout,
4010 sizeof(struct hci_rp_read_auth_payload_to)),
4011 HCI_CC(HCI_OP_WRITE_AUTH_PAYLOAD_TO, hci_cc_write_auth_payload_timeout,
4012 sizeof(struct hci_rp_write_auth_payload_to)),
4013 HCI_CC(HCI_OP_READ_LOCAL_VERSION, hci_cc_read_local_version,
4014 sizeof(struct hci_rp_read_local_version)),
4015 HCI_CC(HCI_OP_READ_LOCAL_COMMANDS, hci_cc_read_local_commands,
4016 sizeof(struct hci_rp_read_local_commands)),
4017 HCI_CC(HCI_OP_READ_LOCAL_FEATURES, hci_cc_read_local_features,
4018 sizeof(struct hci_rp_read_local_features)),
4019 HCI_CC(HCI_OP_READ_LOCAL_EXT_FEATURES, hci_cc_read_local_ext_features,
4020 sizeof(struct hci_rp_read_local_ext_features)),
4021 HCI_CC(HCI_OP_READ_BUFFER_SIZE, hci_cc_read_buffer_size,
4022 sizeof(struct hci_rp_read_buffer_size)),
4023 HCI_CC(HCI_OP_READ_BD_ADDR, hci_cc_read_bd_addr,
4024 sizeof(struct hci_rp_read_bd_addr)),
4025 HCI_CC(HCI_OP_READ_LOCAL_PAIRING_OPTS, hci_cc_read_local_pairing_opts,
4026 sizeof(struct hci_rp_read_local_pairing_opts)),
4027 HCI_CC(HCI_OP_READ_PAGE_SCAN_ACTIVITY, hci_cc_read_page_scan_activity,
4028 sizeof(struct hci_rp_read_page_scan_activity)),
4029 HCI_CC_STATUS(HCI_OP_WRITE_PAGE_SCAN_ACTIVITY,
4030 hci_cc_write_page_scan_activity),
4031 HCI_CC(HCI_OP_READ_PAGE_SCAN_TYPE, hci_cc_read_page_scan_type,
4032 sizeof(struct hci_rp_read_page_scan_type)),
4033 HCI_CC_STATUS(HCI_OP_WRITE_PAGE_SCAN_TYPE, hci_cc_write_page_scan_type),
4034 HCI_CC(HCI_OP_READ_DATA_BLOCK_SIZE, hci_cc_read_data_block_size,
4035 sizeof(struct hci_rp_read_data_block_size)),
4036 HCI_CC(HCI_OP_READ_FLOW_CONTROL_MODE, hci_cc_read_flow_control_mode,
4037 sizeof(struct hci_rp_read_flow_control_mode)),
4038 HCI_CC(HCI_OP_READ_LOCAL_AMP_INFO, hci_cc_read_local_amp_info,
4039 sizeof(struct hci_rp_read_local_amp_info)),
4040 HCI_CC(HCI_OP_READ_CLOCK, hci_cc_read_clock,
4041 sizeof(struct hci_rp_read_clock)),
4042 HCI_CC(HCI_OP_READ_ENC_KEY_SIZE, hci_cc_read_enc_key_size,
4043 sizeof(struct hci_rp_read_enc_key_size)),
4044 HCI_CC(HCI_OP_READ_INQ_RSP_TX_POWER, hci_cc_read_inq_rsp_tx_power,
4045 sizeof(struct hci_rp_read_inq_rsp_tx_power)),
4046 HCI_CC(HCI_OP_READ_DEF_ERR_DATA_REPORTING,
4047 hci_cc_read_def_err_data_reporting,
4048 sizeof(struct hci_rp_read_def_err_data_reporting)),
4049 HCI_CC_STATUS(HCI_OP_WRITE_DEF_ERR_DATA_REPORTING,
4050 hci_cc_write_def_err_data_reporting),
4051 HCI_CC(HCI_OP_PIN_CODE_REPLY, hci_cc_pin_code_reply,
4052 sizeof(struct hci_rp_pin_code_reply)),
4053 HCI_CC(HCI_OP_PIN_CODE_NEG_REPLY, hci_cc_pin_code_neg_reply,
4054 sizeof(struct hci_rp_pin_code_neg_reply)),
4055 HCI_CC(HCI_OP_READ_LOCAL_OOB_DATA, hci_cc_read_local_oob_data,
4056 sizeof(struct hci_rp_read_local_oob_data)),
4057 HCI_CC(HCI_OP_READ_LOCAL_OOB_EXT_DATA, hci_cc_read_local_oob_ext_data,
4058 sizeof(struct hci_rp_read_local_oob_ext_data)),
4059 HCI_CC(HCI_OP_LE_READ_BUFFER_SIZE, hci_cc_le_read_buffer_size,
4060 sizeof(struct hci_rp_le_read_buffer_size)),
4061 HCI_CC(HCI_OP_LE_READ_LOCAL_FEATURES, hci_cc_le_read_local_features,
4062 sizeof(struct hci_rp_le_read_local_features)),
4063 HCI_CC(HCI_OP_LE_READ_ADV_TX_POWER, hci_cc_le_read_adv_tx_power,
4064 sizeof(struct hci_rp_le_read_adv_tx_power)),
4065 HCI_CC(HCI_OP_USER_CONFIRM_REPLY, hci_cc_user_confirm_reply,
4066 sizeof(struct hci_rp_user_confirm_reply)),
4067 HCI_CC(HCI_OP_USER_CONFIRM_NEG_REPLY, hci_cc_user_confirm_neg_reply,
4068 sizeof(struct hci_rp_user_confirm_reply)),
4069 HCI_CC(HCI_OP_USER_PASSKEY_REPLY, hci_cc_user_passkey_reply,
4070 sizeof(struct hci_rp_user_confirm_reply)),
4071 HCI_CC(HCI_OP_USER_PASSKEY_NEG_REPLY, hci_cc_user_passkey_neg_reply,
4072 sizeof(struct hci_rp_user_confirm_reply)),
4073 HCI_CC_STATUS(HCI_OP_LE_SET_RANDOM_ADDR, hci_cc_le_set_random_addr),
4074 HCI_CC_STATUS(HCI_OP_LE_SET_ADV_ENABLE, hci_cc_le_set_adv_enable),
4075 HCI_CC_STATUS(HCI_OP_LE_SET_SCAN_PARAM, hci_cc_le_set_scan_param),
4076 HCI_CC_STATUS(HCI_OP_LE_SET_SCAN_ENABLE, hci_cc_le_set_scan_enable),
4077 HCI_CC(HCI_OP_LE_READ_ACCEPT_LIST_SIZE,
4078 hci_cc_le_read_accept_list_size,
4079 sizeof(struct hci_rp_le_read_accept_list_size)),
4080 HCI_CC_STATUS(HCI_OP_LE_CLEAR_ACCEPT_LIST, hci_cc_le_clear_accept_list),
4081 HCI_CC_STATUS(HCI_OP_LE_ADD_TO_ACCEPT_LIST,
4082 hci_cc_le_add_to_accept_list),
4083 HCI_CC_STATUS(HCI_OP_LE_DEL_FROM_ACCEPT_LIST,
4084 hci_cc_le_del_from_accept_list),
4085 HCI_CC(HCI_OP_LE_READ_SUPPORTED_STATES, hci_cc_le_read_supported_states,
4086 sizeof(struct hci_rp_le_read_supported_states)),
4087 HCI_CC(HCI_OP_LE_READ_DEF_DATA_LEN, hci_cc_le_read_def_data_len,
4088 sizeof(struct hci_rp_le_read_def_data_len)),
4089 HCI_CC_STATUS(HCI_OP_LE_WRITE_DEF_DATA_LEN,
4090 hci_cc_le_write_def_data_len),
4091 HCI_CC_STATUS(HCI_OP_LE_ADD_TO_RESOLV_LIST,
4092 hci_cc_le_add_to_resolv_list),
4093 HCI_CC_STATUS(HCI_OP_LE_DEL_FROM_RESOLV_LIST,
4094 hci_cc_le_del_from_resolv_list),
4095 HCI_CC_STATUS(HCI_OP_LE_CLEAR_RESOLV_LIST,
4096 hci_cc_le_clear_resolv_list),
4097 HCI_CC(HCI_OP_LE_READ_RESOLV_LIST_SIZE, hci_cc_le_read_resolv_list_size,
4098 sizeof(struct hci_rp_le_read_resolv_list_size)),
4099 HCI_CC_STATUS(HCI_OP_LE_SET_ADDR_RESOLV_ENABLE,
4100 hci_cc_le_set_addr_resolution_enable),
4101 HCI_CC(HCI_OP_LE_READ_MAX_DATA_LEN, hci_cc_le_read_max_data_len,
4102 sizeof(struct hci_rp_le_read_max_data_len)),
4103 HCI_CC_STATUS(HCI_OP_WRITE_LE_HOST_SUPPORTED,
4104 hci_cc_write_le_host_supported),
4105 HCI_CC_STATUS(HCI_OP_LE_SET_ADV_PARAM, hci_cc_set_adv_param),
4106 HCI_CC(HCI_OP_READ_RSSI, hci_cc_read_rssi,
4107 sizeof(struct hci_rp_read_rssi)),
4108 HCI_CC(HCI_OP_READ_TX_POWER, hci_cc_read_tx_power,
4109 sizeof(struct hci_rp_read_tx_power)),
4110 HCI_CC_STATUS(HCI_OP_WRITE_SSP_DEBUG_MODE, hci_cc_write_ssp_debug_mode),
4111 HCI_CC_STATUS(HCI_OP_LE_SET_EXT_SCAN_PARAMS,
4112 hci_cc_le_set_ext_scan_param),
4113 HCI_CC_STATUS(HCI_OP_LE_SET_EXT_SCAN_ENABLE,
4114 hci_cc_le_set_ext_scan_enable),
4115 HCI_CC_STATUS(HCI_OP_LE_SET_DEFAULT_PHY, hci_cc_le_set_default_phy),
4116 HCI_CC(HCI_OP_LE_READ_NUM_SUPPORTED_ADV_SETS,
4117 hci_cc_le_read_num_adv_sets,
4118 sizeof(struct hci_rp_le_read_num_supported_adv_sets)),
4119 HCI_CC(HCI_OP_LE_SET_EXT_ADV_PARAMS, hci_cc_set_ext_adv_param,
4120 sizeof(struct hci_rp_le_set_ext_adv_params)),
4121 HCI_CC_STATUS(HCI_OP_LE_SET_EXT_ADV_ENABLE,
4122 hci_cc_le_set_ext_adv_enable),
4123 HCI_CC_STATUS(HCI_OP_LE_SET_ADV_SET_RAND_ADDR,
4124 hci_cc_le_set_adv_set_random_addr),
4125 HCI_CC_STATUS(HCI_OP_LE_REMOVE_ADV_SET, hci_cc_le_remove_adv_set),
4126 HCI_CC_STATUS(HCI_OP_LE_CLEAR_ADV_SETS, hci_cc_le_clear_adv_sets),
4127 HCI_CC_STATUS(HCI_OP_LE_SET_PER_ADV_PARAMS, hci_cc_set_per_adv_param),
4128 HCI_CC_STATUS(HCI_OP_LE_SET_PER_ADV_ENABLE,
4129 hci_cc_le_set_per_adv_enable),
4130 HCI_CC(HCI_OP_LE_READ_TRANSMIT_POWER, hci_cc_le_read_transmit_power,
4131 sizeof(struct hci_rp_le_read_transmit_power)),
4132 HCI_CC_STATUS(HCI_OP_LE_SET_PRIVACY_MODE, hci_cc_le_set_privacy_mode),
4133 HCI_CC(HCI_OP_LE_READ_BUFFER_SIZE_V2, hci_cc_le_read_buffer_size_v2,
4134 sizeof(struct hci_rp_le_read_buffer_size_v2)),
4135 HCI_CC_VL(HCI_OP_LE_SET_CIG_PARAMS, hci_cc_le_set_cig_params,
4136 sizeof(struct hci_rp_le_set_cig_params), HCI_MAX_EVENT_SIZE),
4137 HCI_CC(HCI_OP_LE_SETUP_ISO_PATH, hci_cc_le_setup_iso_path,
4138 sizeof(struct hci_rp_le_setup_iso_path)),
4141 static u8 hci_cc_func(struct hci_dev *hdev, const struct hci_cc *cc,
4142 struct sk_buff *skb)
4146 if (skb->len < cc->min_len) {
4147 bt_dev_err(hdev, "unexpected cc 0x%4.4x length: %u < %u",
4148 cc->op, skb->len, cc->min_len);
4149 return HCI_ERROR_UNSPECIFIED;
4152 /* Just warn if the length is over max_len size it still be possible to
4153 * partially parse the cc so leave to callback to decide if that is
4156 if (skb->len > cc->max_len)
4157 bt_dev_warn(hdev, "unexpected cc 0x%4.4x length: %u > %u",
4158 cc->op, skb->len, cc->max_len);
4160 data = hci_cc_skb_pull(hdev, skb, cc->op, cc->min_len);
4162 return HCI_ERROR_UNSPECIFIED;
4164 return cc->func(hdev, data, skb);
4167 static void hci_cmd_complete_evt(struct hci_dev *hdev, void *data,
4168 struct sk_buff *skb, u16 *opcode, u8 *status,
4169 hci_req_complete_t *req_complete,
4170 hci_req_complete_skb_t *req_complete_skb)
4172 struct hci_ev_cmd_complete *ev = data;
4175 *opcode = __le16_to_cpu(ev->opcode);
4177 bt_dev_dbg(hdev, "opcode 0x%4.4x", *opcode);
4179 for (i = 0; i < ARRAY_SIZE(hci_cc_table); i++) {
4180 if (hci_cc_table[i].op == *opcode) {
4181 *status = hci_cc_func(hdev, &hci_cc_table[i], skb);
4186 if (i == ARRAY_SIZE(hci_cc_table)) {
4187 /* Unknown opcode, assume byte 0 contains the status, so
4188 * that e.g. __hci_cmd_sync() properly returns errors
4189 * for vendor specific commands send by HCI drivers.
4190 * If a vendor doesn't actually follow this convention we may
4191 * need to introduce a vendor CC table in order to properly set
4194 *status = skb->data[0];
4197 handle_cmd_cnt_and_timer(hdev, ev->ncmd);
4199 hci_req_cmd_complete(hdev, *opcode, *status, req_complete,
4202 if (hci_dev_test_flag(hdev, HCI_CMD_PENDING)) {
4204 "unexpected event for opcode 0x%4.4x", *opcode);
4208 if (atomic_read(&hdev->cmd_cnt) && !skb_queue_empty(&hdev->cmd_q))
4209 queue_work(hdev->workqueue, &hdev->cmd_work);
4212 static void hci_cs_le_create_cis(struct hci_dev *hdev, u8 status)
4214 struct hci_cp_le_create_cis *cp;
4217 bt_dev_dbg(hdev, "status 0x%2.2x", status);
4222 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_CREATE_CIS);
4228 /* Remove connection if command failed */
4229 for (i = 0; cp->num_cis; cp->num_cis--, i++) {
4230 struct hci_conn *conn;
4233 handle = __le16_to_cpu(cp->cis[i].cis_handle);
4235 conn = hci_conn_hash_lookup_handle(hdev, handle);
4237 conn->state = BT_CLOSED;
4238 hci_connect_cfm(conn, status);
4243 hci_dev_unlock(hdev);
4246 #define HCI_CS(_op, _func) \
4252 static const struct hci_cs {
4254 void (*func)(struct hci_dev *hdev, __u8 status);
4255 } hci_cs_table[] = {
4256 HCI_CS(HCI_OP_INQUIRY, hci_cs_inquiry),
4257 HCI_CS(HCI_OP_CREATE_CONN, hci_cs_create_conn),
4258 HCI_CS(HCI_OP_DISCONNECT, hci_cs_disconnect),
4259 HCI_CS(HCI_OP_ADD_SCO, hci_cs_add_sco),
4260 HCI_CS(HCI_OP_AUTH_REQUESTED, hci_cs_auth_requested),
4261 HCI_CS(HCI_OP_SET_CONN_ENCRYPT, hci_cs_set_conn_encrypt),
4262 HCI_CS(HCI_OP_REMOTE_NAME_REQ, hci_cs_remote_name_req),
4263 HCI_CS(HCI_OP_READ_REMOTE_FEATURES, hci_cs_read_remote_features),
4264 HCI_CS(HCI_OP_READ_REMOTE_EXT_FEATURES,
4265 hci_cs_read_remote_ext_features),
4266 HCI_CS(HCI_OP_SETUP_SYNC_CONN, hci_cs_setup_sync_conn),
4267 HCI_CS(HCI_OP_ENHANCED_SETUP_SYNC_CONN,
4268 hci_cs_enhanced_setup_sync_conn),
4269 HCI_CS(HCI_OP_SNIFF_MODE, hci_cs_sniff_mode),
4270 HCI_CS(HCI_OP_EXIT_SNIFF_MODE, hci_cs_exit_sniff_mode),
4271 HCI_CS(HCI_OP_SWITCH_ROLE, hci_cs_switch_role),
4272 HCI_CS(HCI_OP_LE_CREATE_CONN, hci_cs_le_create_conn),
4273 HCI_CS(HCI_OP_LE_READ_REMOTE_FEATURES, hci_cs_le_read_remote_features),
4274 HCI_CS(HCI_OP_LE_START_ENC, hci_cs_le_start_enc),
4275 HCI_CS(HCI_OP_LE_EXT_CREATE_CONN, hci_cs_le_ext_create_conn),
4276 HCI_CS(HCI_OP_LE_CREATE_CIS, hci_cs_le_create_cis),
4277 HCI_CS(HCI_OP_LE_CREATE_BIG, hci_cs_le_create_big),
4280 static void hci_cmd_status_evt(struct hci_dev *hdev, void *data,
4281 struct sk_buff *skb, u16 *opcode, u8 *status,
4282 hci_req_complete_t *req_complete,
4283 hci_req_complete_skb_t *req_complete_skb)
4285 struct hci_ev_cmd_status *ev = data;
4288 *opcode = __le16_to_cpu(ev->opcode);
4289 *status = ev->status;
4291 bt_dev_dbg(hdev, "opcode 0x%4.4x", *opcode);
4293 for (i = 0; i < ARRAY_SIZE(hci_cs_table); i++) {
4294 if (hci_cs_table[i].op == *opcode) {
4295 hci_cs_table[i].func(hdev, ev->status);
4300 handle_cmd_cnt_and_timer(hdev, ev->ncmd);
4302 /* Indicate request completion if the command failed. Also, if
4303 * we're not waiting for a special event and we get a success
4304 * command status we should try to flag the request as completed
4305 * (since for this kind of commands there will not be a command
4308 if (ev->status || (hdev->sent_cmd && !hci_skb_event(hdev->sent_cmd))) {
4309 hci_req_cmd_complete(hdev, *opcode, ev->status, req_complete,
4311 if (hci_dev_test_flag(hdev, HCI_CMD_PENDING)) {
4312 bt_dev_err(hdev, "unexpected event for opcode 0x%4.4x",
4318 if (atomic_read(&hdev->cmd_cnt) && !skb_queue_empty(&hdev->cmd_q))
4319 queue_work(hdev->workqueue, &hdev->cmd_work);
4322 static void hci_hardware_error_evt(struct hci_dev *hdev, void *data,
4323 struct sk_buff *skb)
4325 struct hci_ev_hardware_error *ev = data;
4327 bt_dev_dbg(hdev, "code 0x%2.2x", ev->code);
4329 hdev->hw_error_code = ev->code;
4331 queue_work(hdev->req_workqueue, &hdev->error_reset);
4334 static void hci_role_change_evt(struct hci_dev *hdev, void *data,
4335 struct sk_buff *skb)
4337 struct hci_ev_role_change *ev = data;
4338 struct hci_conn *conn;
4340 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
4344 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
4347 conn->role = ev->role;
4349 clear_bit(HCI_CONN_RSWITCH_PEND, &conn->flags);
4351 hci_role_switch_cfm(conn, ev->status, ev->role);
4354 hci_dev_unlock(hdev);
4357 static void hci_num_comp_pkts_evt(struct hci_dev *hdev, void *data,
4358 struct sk_buff *skb)
4360 struct hci_ev_num_comp_pkts *ev = data;
4363 if (!hci_ev_skb_pull(hdev, skb, HCI_EV_NUM_COMP_PKTS,
4364 flex_array_size(ev, handles, ev->num)))
4367 if (hdev->flow_ctl_mode != HCI_FLOW_CTL_MODE_PACKET_BASED) {
4368 bt_dev_err(hdev, "wrong event for mode %d", hdev->flow_ctl_mode);
4372 bt_dev_dbg(hdev, "num %d", ev->num);
4374 for (i = 0; i < ev->num; i++) {
4375 struct hci_comp_pkts_info *info = &ev->handles[i];
4376 struct hci_conn *conn;
4377 __u16 handle, count;
4379 handle = __le16_to_cpu(info->handle);
4380 count = __le16_to_cpu(info->count);
4382 conn = hci_conn_hash_lookup_handle(hdev, handle);
4386 conn->sent -= count;
4388 switch (conn->type) {
4390 hdev->acl_cnt += count;
4391 if (hdev->acl_cnt > hdev->acl_pkts)
4392 hdev->acl_cnt = hdev->acl_pkts;
4396 if (hdev->le_pkts) {
4397 hdev->le_cnt += count;
4398 if (hdev->le_cnt > hdev->le_pkts)
4399 hdev->le_cnt = hdev->le_pkts;
4401 hdev->acl_cnt += count;
4402 if (hdev->acl_cnt > hdev->acl_pkts)
4403 hdev->acl_cnt = hdev->acl_pkts;
4408 hdev->sco_cnt += count;
4409 if (hdev->sco_cnt > hdev->sco_pkts)
4410 hdev->sco_cnt = hdev->sco_pkts;
4414 if (hdev->iso_pkts) {
4415 hdev->iso_cnt += count;
4416 if (hdev->iso_cnt > hdev->iso_pkts)
4417 hdev->iso_cnt = hdev->iso_pkts;
4418 } else if (hdev->le_pkts) {
4419 hdev->le_cnt += count;
4420 if (hdev->le_cnt > hdev->le_pkts)
4421 hdev->le_cnt = hdev->le_pkts;
4423 hdev->acl_cnt += count;
4424 if (hdev->acl_cnt > hdev->acl_pkts)
4425 hdev->acl_cnt = hdev->acl_pkts;
4430 bt_dev_err(hdev, "unknown type %d conn %p",
4436 queue_work(hdev->workqueue, &hdev->tx_work);
4439 static struct hci_conn *__hci_conn_lookup_handle(struct hci_dev *hdev,
4442 struct hci_chan *chan;
4444 switch (hdev->dev_type) {
4446 return hci_conn_hash_lookup_handle(hdev, handle);
4448 chan = hci_chan_lookup_handle(hdev, handle);
4453 bt_dev_err(hdev, "unknown dev_type %d", hdev->dev_type);
4460 static void hci_num_comp_blocks_evt(struct hci_dev *hdev, void *data,
4461 struct sk_buff *skb)
4463 struct hci_ev_num_comp_blocks *ev = data;
4466 if (!hci_ev_skb_pull(hdev, skb, HCI_EV_NUM_COMP_BLOCKS,
4467 flex_array_size(ev, handles, ev->num_hndl)))
4470 if (hdev->flow_ctl_mode != HCI_FLOW_CTL_MODE_BLOCK_BASED) {
4471 bt_dev_err(hdev, "wrong event for mode %d",
4472 hdev->flow_ctl_mode);
4476 bt_dev_dbg(hdev, "num_blocks %d num_hndl %d", ev->num_blocks,
4479 for (i = 0; i < ev->num_hndl; i++) {
4480 struct hci_comp_blocks_info *info = &ev->handles[i];
4481 struct hci_conn *conn = NULL;
4482 __u16 handle, block_count;
4484 handle = __le16_to_cpu(info->handle);
4485 block_count = __le16_to_cpu(info->blocks);
4487 conn = __hci_conn_lookup_handle(hdev, handle);
4491 conn->sent -= block_count;
4493 switch (conn->type) {
4496 hdev->block_cnt += block_count;
4497 if (hdev->block_cnt > hdev->num_blocks)
4498 hdev->block_cnt = hdev->num_blocks;
4502 bt_dev_err(hdev, "unknown type %d conn %p",
4508 queue_work(hdev->workqueue, &hdev->tx_work);
4511 static void hci_mode_change_evt(struct hci_dev *hdev, void *data,
4512 struct sk_buff *skb)
4514 struct hci_ev_mode_change *ev = data;
4515 struct hci_conn *conn;
4517 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
4521 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
4523 conn->mode = ev->mode;
4525 if (!test_and_clear_bit(HCI_CONN_MODE_CHANGE_PEND,
4527 if (conn->mode == HCI_CM_ACTIVE)
4528 set_bit(HCI_CONN_POWER_SAVE, &conn->flags);
4530 clear_bit(HCI_CONN_POWER_SAVE, &conn->flags);
4533 if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags))
4534 hci_sco_setup(conn, ev->status);
4537 hci_dev_unlock(hdev);
4540 static void hci_pin_code_request_evt(struct hci_dev *hdev, void *data,
4541 struct sk_buff *skb)
4543 struct hci_ev_pin_code_req *ev = data;
4544 struct hci_conn *conn;
4546 bt_dev_dbg(hdev, "");
4550 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
4554 if (conn->state == BT_CONNECTED) {
4555 hci_conn_hold(conn);
4556 conn->disc_timeout = HCI_PAIRING_TIMEOUT;
4557 hci_conn_drop(conn);
4560 if (!hci_dev_test_flag(hdev, HCI_BONDABLE) &&
4561 !test_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags)) {
4562 hci_send_cmd(hdev, HCI_OP_PIN_CODE_NEG_REPLY,
4563 sizeof(ev->bdaddr), &ev->bdaddr);
4564 } else if (hci_dev_test_flag(hdev, HCI_MGMT)) {
4567 if (conn->pending_sec_level == BT_SECURITY_HIGH)
4572 mgmt_pin_code_request(hdev, &ev->bdaddr, secure);
4576 hci_dev_unlock(hdev);
4579 static void conn_set_key(struct hci_conn *conn, u8 key_type, u8 pin_len)
4581 if (key_type == HCI_LK_CHANGED_COMBINATION)
4584 conn->pin_length = pin_len;
4585 conn->key_type = key_type;
4588 case HCI_LK_LOCAL_UNIT:
4589 case HCI_LK_REMOTE_UNIT:
4590 case HCI_LK_DEBUG_COMBINATION:
4592 case HCI_LK_COMBINATION:
4594 conn->pending_sec_level = BT_SECURITY_HIGH;
4596 conn->pending_sec_level = BT_SECURITY_MEDIUM;
4598 case HCI_LK_UNAUTH_COMBINATION_P192:
4599 case HCI_LK_UNAUTH_COMBINATION_P256:
4600 conn->pending_sec_level = BT_SECURITY_MEDIUM;
4602 case HCI_LK_AUTH_COMBINATION_P192:
4603 conn->pending_sec_level = BT_SECURITY_HIGH;
4605 case HCI_LK_AUTH_COMBINATION_P256:
4606 conn->pending_sec_level = BT_SECURITY_FIPS;
4611 static void hci_link_key_request_evt(struct hci_dev *hdev, void *data,
4612 struct sk_buff *skb)
4614 struct hci_ev_link_key_req *ev = data;
4615 struct hci_cp_link_key_reply cp;
4616 struct hci_conn *conn;
4617 struct link_key *key;
4619 bt_dev_dbg(hdev, "");
4621 if (!hci_dev_test_flag(hdev, HCI_MGMT))
4626 key = hci_find_link_key(hdev, &ev->bdaddr);
4628 bt_dev_dbg(hdev, "link key not found for %pMR", &ev->bdaddr);
4632 bt_dev_dbg(hdev, "found key type %u for %pMR", key->type, &ev->bdaddr);
4634 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
4636 clear_bit(HCI_CONN_NEW_LINK_KEY, &conn->flags);
4638 if ((key->type == HCI_LK_UNAUTH_COMBINATION_P192 ||
4639 key->type == HCI_LK_UNAUTH_COMBINATION_P256) &&
4640 conn->auth_type != 0xff && (conn->auth_type & 0x01)) {
4641 bt_dev_dbg(hdev, "ignoring unauthenticated key");
4645 if (key->type == HCI_LK_COMBINATION && key->pin_len < 16 &&
4646 (conn->pending_sec_level == BT_SECURITY_HIGH ||
4647 conn->pending_sec_level == BT_SECURITY_FIPS)) {
4648 bt_dev_dbg(hdev, "ignoring key unauthenticated for high security");
4652 conn_set_key(conn, key->type, key->pin_len);
4655 bacpy(&cp.bdaddr, &ev->bdaddr);
4656 memcpy(cp.link_key, key->val, HCI_LINK_KEY_SIZE);
4658 hci_send_cmd(hdev, HCI_OP_LINK_KEY_REPLY, sizeof(cp), &cp);
4660 hci_dev_unlock(hdev);
4665 hci_send_cmd(hdev, HCI_OP_LINK_KEY_NEG_REPLY, 6, &ev->bdaddr);
4666 hci_dev_unlock(hdev);
4669 static void hci_link_key_notify_evt(struct hci_dev *hdev, void *data,
4670 struct sk_buff *skb)
4672 struct hci_ev_link_key_notify *ev = data;
4673 struct hci_conn *conn;
4674 struct link_key *key;
4678 bt_dev_dbg(hdev, "");
4682 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
4686 hci_conn_hold(conn);
4687 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
4688 hci_conn_drop(conn);
4690 set_bit(HCI_CONN_NEW_LINK_KEY, &conn->flags);
4691 conn_set_key(conn, ev->key_type, conn->pin_length);
4693 if (!hci_dev_test_flag(hdev, HCI_MGMT))
4696 key = hci_add_link_key(hdev, conn, &ev->bdaddr, ev->link_key,
4697 ev->key_type, pin_len, &persistent);
4701 /* Update connection information since adding the key will have
4702 * fixed up the type in the case of changed combination keys.
4704 if (ev->key_type == HCI_LK_CHANGED_COMBINATION)
4705 conn_set_key(conn, key->type, key->pin_len);
4707 mgmt_new_link_key(hdev, key, persistent);
4709 /* Keep debug keys around only if the HCI_KEEP_DEBUG_KEYS flag
4710 * is set. If it's not set simply remove the key from the kernel
4711 * list (we've still notified user space about it but with
4712 * store_hint being 0).
4714 if (key->type == HCI_LK_DEBUG_COMBINATION &&
4715 !hci_dev_test_flag(hdev, HCI_KEEP_DEBUG_KEYS)) {
4716 list_del_rcu(&key->list);
4717 kfree_rcu(key, rcu);
4722 clear_bit(HCI_CONN_FLUSH_KEY, &conn->flags);
4724 set_bit(HCI_CONN_FLUSH_KEY, &conn->flags);
4727 hci_dev_unlock(hdev);
4730 static void hci_clock_offset_evt(struct hci_dev *hdev, void *data,
4731 struct sk_buff *skb)
4733 struct hci_ev_clock_offset *ev = data;
4734 struct hci_conn *conn;
4736 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
4740 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
4741 if (conn && !ev->status) {
4742 struct inquiry_entry *ie;
4744 ie = hci_inquiry_cache_lookup(hdev, &conn->dst);
4746 ie->data.clock_offset = ev->clock_offset;
4747 ie->timestamp = jiffies;
4751 hci_dev_unlock(hdev);
4754 static void hci_pkt_type_change_evt(struct hci_dev *hdev, void *data,
4755 struct sk_buff *skb)
4757 struct hci_ev_pkt_type_change *ev = data;
4758 struct hci_conn *conn;
4760 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
4764 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
4765 if (conn && !ev->status)
4766 conn->pkt_type = __le16_to_cpu(ev->pkt_type);
4768 hci_dev_unlock(hdev);
4771 static void hci_pscan_rep_mode_evt(struct hci_dev *hdev, void *data,
4772 struct sk_buff *skb)
4774 struct hci_ev_pscan_rep_mode *ev = data;
4775 struct inquiry_entry *ie;
4777 bt_dev_dbg(hdev, "");
4781 ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
4783 ie->data.pscan_rep_mode = ev->pscan_rep_mode;
4784 ie->timestamp = jiffies;
4787 hci_dev_unlock(hdev);
4790 static void hci_inquiry_result_with_rssi_evt(struct hci_dev *hdev, void *edata,
4791 struct sk_buff *skb)
4793 struct hci_ev_inquiry_result_rssi *ev = edata;
4794 struct inquiry_data data;
4797 bt_dev_dbg(hdev, "num_rsp %d", ev->num);
4802 if (hci_dev_test_flag(hdev, HCI_PERIODIC_INQ))
4807 if (skb->len == array_size(ev->num,
4808 sizeof(struct inquiry_info_rssi_pscan))) {
4809 struct inquiry_info_rssi_pscan *info;
4811 for (i = 0; i < ev->num; i++) {
4814 info = hci_ev_skb_pull(hdev, skb,
4815 HCI_EV_INQUIRY_RESULT_WITH_RSSI,
4818 bt_dev_err(hdev, "Malformed HCI Event: 0x%2.2x",
4819 HCI_EV_INQUIRY_RESULT_WITH_RSSI);
4823 bacpy(&data.bdaddr, &info->bdaddr);
4824 data.pscan_rep_mode = info->pscan_rep_mode;
4825 data.pscan_period_mode = info->pscan_period_mode;
4826 data.pscan_mode = info->pscan_mode;
4827 memcpy(data.dev_class, info->dev_class, 3);
4828 data.clock_offset = info->clock_offset;
4829 data.rssi = info->rssi;
4830 data.ssp_mode = 0x00;
4832 flags = hci_inquiry_cache_update(hdev, &data, false);
4834 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
4835 info->dev_class, info->rssi,
4836 flags, NULL, 0, NULL, 0, 0);
4838 } else if (skb->len == array_size(ev->num,
4839 sizeof(struct inquiry_info_rssi))) {
4840 struct inquiry_info_rssi *info;
4842 for (i = 0; i < ev->num; i++) {
4845 info = hci_ev_skb_pull(hdev, skb,
4846 HCI_EV_INQUIRY_RESULT_WITH_RSSI,
4849 bt_dev_err(hdev, "Malformed HCI Event: 0x%2.2x",
4850 HCI_EV_INQUIRY_RESULT_WITH_RSSI);
4854 bacpy(&data.bdaddr, &info->bdaddr);
4855 data.pscan_rep_mode = info->pscan_rep_mode;
4856 data.pscan_period_mode = info->pscan_period_mode;
4857 data.pscan_mode = 0x00;
4858 memcpy(data.dev_class, info->dev_class, 3);
4859 data.clock_offset = info->clock_offset;
4860 data.rssi = info->rssi;
4861 data.ssp_mode = 0x00;
4863 flags = hci_inquiry_cache_update(hdev, &data, false);
4865 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
4866 info->dev_class, info->rssi,
4867 flags, NULL, 0, NULL, 0, 0);
4870 bt_dev_err(hdev, "Malformed HCI Event: 0x%2.2x",
4871 HCI_EV_INQUIRY_RESULT_WITH_RSSI);
4874 hci_dev_unlock(hdev);
4877 static void hci_remote_ext_features_evt(struct hci_dev *hdev, void *data,
4878 struct sk_buff *skb)
4880 struct hci_ev_remote_ext_features *ev = data;
4881 struct hci_conn *conn;
4883 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
4887 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
4891 if (ev->page < HCI_MAX_PAGES)
4892 memcpy(conn->features[ev->page], ev->features, 8);
4894 if (!ev->status && ev->page == 0x01) {
4895 struct inquiry_entry *ie;
4897 ie = hci_inquiry_cache_lookup(hdev, &conn->dst);
4899 ie->data.ssp_mode = (ev->features[0] & LMP_HOST_SSP);
4901 if (ev->features[0] & LMP_HOST_SSP) {
4902 set_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
4904 /* It is mandatory by the Bluetooth specification that
4905 * Extended Inquiry Results are only used when Secure
4906 * Simple Pairing is enabled, but some devices violate
4909 * To make these devices work, the internal SSP
4910 * enabled flag needs to be cleared if the remote host
4911 * features do not indicate SSP support */
4912 clear_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
4915 if (ev->features[0] & LMP_HOST_SC)
4916 set_bit(HCI_CONN_SC_ENABLED, &conn->flags);
4919 if (conn->state != BT_CONFIG)
4922 if (!ev->status && !test_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags)) {
4923 struct hci_cp_remote_name_req cp;
4924 memset(&cp, 0, sizeof(cp));
4925 bacpy(&cp.bdaddr, &conn->dst);
4926 cp.pscan_rep_mode = 0x02;
4927 hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp);
4928 } else if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
4929 mgmt_device_connected(hdev, conn, NULL, 0);
4931 if (!hci_outgoing_auth_needed(hdev, conn)) {
4932 conn->state = BT_CONNECTED;
4933 hci_connect_cfm(conn, ev->status);
4934 hci_conn_drop(conn);
4938 hci_dev_unlock(hdev);
4941 static void hci_sync_conn_complete_evt(struct hci_dev *hdev, void *data,
4942 struct sk_buff *skb)
4944 struct hci_ev_sync_conn_complete *ev = data;
4945 struct hci_conn *conn;
4946 u8 status = ev->status;
4948 switch (ev->link_type) {
4953 /* As per Core 5.3 Vol 4 Part E 7.7.35 (p.2219), Link_Type
4954 * for HCI_Synchronous_Connection_Complete is limited to
4955 * either SCO or eSCO
4957 bt_dev_err(hdev, "Ignoring connect complete event for invalid link type");
4961 bt_dev_dbg(hdev, "status 0x%2.2x", status);
4965 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr);
4967 if (ev->link_type == ESCO_LINK)
4970 /* When the link type in the event indicates SCO connection
4971 * and lookup of the connection object fails, then check
4972 * if an eSCO connection object exists.
4974 * The core limits the synchronous connections to either
4975 * SCO or eSCO. The eSCO connection is preferred and tried
4976 * to be setup first and until successfully established,
4977 * the link type will be hinted as eSCO.
4979 conn = hci_conn_hash_lookup_ba(hdev, ESCO_LINK, &ev->bdaddr);
4984 /* The HCI_Synchronous_Connection_Complete event is only sent once per connection.
4985 * Processing it more than once per connection can corrupt kernel memory.
4987 * As the connection handle is set here for the first time, it indicates
4988 * whether the connection is already set up.
4990 if (conn->handle != HCI_CONN_HANDLE_UNSET) {
4991 bt_dev_err(hdev, "Ignoring HCI_Sync_Conn_Complete event for existing connection");
4997 conn->handle = __le16_to_cpu(ev->handle);
4998 if (conn->handle > HCI_CONN_HANDLE_MAX) {
4999 bt_dev_err(hdev, "Invalid handle: 0x%4.4x > 0x%4.4x",
5000 conn->handle, HCI_CONN_HANDLE_MAX);
5001 status = HCI_ERROR_INVALID_PARAMETERS;
5002 conn->state = BT_CLOSED;
5006 conn->state = BT_CONNECTED;
5007 conn->type = ev->link_type;
5009 hci_debugfs_create_conn(conn);
5010 hci_conn_add_sysfs(conn);
5013 case 0x10: /* Connection Accept Timeout */
5014 case 0x0d: /* Connection Rejected due to Limited Resources */
5015 case 0x11: /* Unsupported Feature or Parameter Value */
5016 case 0x1c: /* SCO interval rejected */
5017 case 0x1a: /* Unsupported Remote Feature */
5018 case 0x1e: /* Invalid LMP Parameters */
5019 case 0x1f: /* Unspecified error */
5020 case 0x20: /* Unsupported LMP Parameter value */
5022 conn->pkt_type = (hdev->esco_type & SCO_ESCO_MASK) |
5023 (hdev->esco_type & EDR_ESCO_MASK);
5024 if (hci_setup_sync(conn, conn->parent->handle))
5030 conn->state = BT_CLOSED;
5034 bt_dev_dbg(hdev, "SCO connected with air mode: %02x", ev->air_mode);
5035 /* Notify only in case of SCO over HCI transport data path which
5036 * is zero and non-zero value shall be non-HCI transport data path
5038 if (conn->codec.data_path == 0 && hdev->notify) {
5039 switch (ev->air_mode) {
5041 hdev->notify(hdev, HCI_NOTIFY_ENABLE_SCO_CVSD);
5044 hdev->notify(hdev, HCI_NOTIFY_ENABLE_SCO_TRANSP);
5049 hci_connect_cfm(conn, status);
5054 hci_dev_unlock(hdev);
5057 static inline size_t eir_get_length(u8 *eir, size_t eir_len)
5061 while (parsed < eir_len) {
5062 u8 field_len = eir[0];
5067 parsed += field_len + 1;
5068 eir += field_len + 1;
5074 static void hci_extended_inquiry_result_evt(struct hci_dev *hdev, void *edata,
5075 struct sk_buff *skb)
5077 struct hci_ev_ext_inquiry_result *ev = edata;
5078 struct inquiry_data data;
5082 if (!hci_ev_skb_pull(hdev, skb, HCI_EV_EXTENDED_INQUIRY_RESULT,
5083 flex_array_size(ev, info, ev->num)))
5086 bt_dev_dbg(hdev, "num %d", ev->num);
5091 if (hci_dev_test_flag(hdev, HCI_PERIODIC_INQ))
5096 for (i = 0; i < ev->num; i++) {
5097 struct extended_inquiry_info *info = &ev->info[i];
5101 bacpy(&data.bdaddr, &info->bdaddr);
5102 data.pscan_rep_mode = info->pscan_rep_mode;
5103 data.pscan_period_mode = info->pscan_period_mode;
5104 data.pscan_mode = 0x00;
5105 memcpy(data.dev_class, info->dev_class, 3);
5106 data.clock_offset = info->clock_offset;
5107 data.rssi = info->rssi;
5108 data.ssp_mode = 0x01;
5110 if (hci_dev_test_flag(hdev, HCI_MGMT))
5111 name_known = eir_get_data(info->data,
5113 EIR_NAME_COMPLETE, NULL);
5117 flags = hci_inquiry_cache_update(hdev, &data, name_known);
5119 eir_len = eir_get_length(info->data, sizeof(info->data));
5121 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
5122 info->dev_class, info->rssi,
5123 flags, info->data, eir_len, NULL, 0, 0);
5126 hci_dev_unlock(hdev);
5129 static void hci_key_refresh_complete_evt(struct hci_dev *hdev, void *data,
5130 struct sk_buff *skb)
5132 struct hci_ev_key_refresh_complete *ev = data;
5133 struct hci_conn *conn;
5135 bt_dev_dbg(hdev, "status 0x%2.2x handle 0x%4.4x", ev->status,
5136 __le16_to_cpu(ev->handle));
5140 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
5144 /* For BR/EDR the necessary steps are taken through the
5145 * auth_complete event.
5147 if (conn->type != LE_LINK)
5151 conn->sec_level = conn->pending_sec_level;
5153 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
5155 if (ev->status && conn->state == BT_CONNECTED) {
5156 hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE);
5157 hci_conn_drop(conn);
5161 if (conn->state == BT_CONFIG) {
5163 conn->state = BT_CONNECTED;
5165 hci_connect_cfm(conn, ev->status);
5166 hci_conn_drop(conn);
5168 hci_auth_cfm(conn, ev->status);
5170 hci_conn_hold(conn);
5171 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
5172 hci_conn_drop(conn);
5176 hci_dev_unlock(hdev);
5179 static u8 hci_get_auth_req(struct hci_conn *conn)
5181 /* If remote requests no-bonding follow that lead */
5182 if (conn->remote_auth == HCI_AT_NO_BONDING ||
5183 conn->remote_auth == HCI_AT_NO_BONDING_MITM)
5184 return conn->remote_auth | (conn->auth_type & 0x01);
5186 /* If both remote and local have enough IO capabilities, require
5189 if (conn->remote_cap != HCI_IO_NO_INPUT_OUTPUT &&
5190 conn->io_capability != HCI_IO_NO_INPUT_OUTPUT)
5191 return conn->remote_auth | 0x01;
5193 /* No MITM protection possible so ignore remote requirement */
5194 return (conn->remote_auth & ~0x01) | (conn->auth_type & 0x01);
5197 static u8 bredr_oob_data_present(struct hci_conn *conn)
5199 struct hci_dev *hdev = conn->hdev;
5200 struct oob_data *data;
5202 data = hci_find_remote_oob_data(hdev, &conn->dst, BDADDR_BREDR);
5206 if (bredr_sc_enabled(hdev)) {
5207 /* When Secure Connections is enabled, then just
5208 * return the present value stored with the OOB
5209 * data. The stored value contains the right present
5210 * information. However it can only be trusted when
5211 * not in Secure Connection Only mode.
5213 if (!hci_dev_test_flag(hdev, HCI_SC_ONLY))
5214 return data->present;
5216 /* When Secure Connections Only mode is enabled, then
5217 * the P-256 values are required. If they are not
5218 * available, then do not declare that OOB data is
5221 if (!memcmp(data->rand256, ZERO_KEY, 16) ||
5222 !memcmp(data->hash256, ZERO_KEY, 16))
5228 /* When Secure Connections is not enabled or actually
5229 * not supported by the hardware, then check that if
5230 * P-192 data values are present.
5232 if (!memcmp(data->rand192, ZERO_KEY, 16) ||
5233 !memcmp(data->hash192, ZERO_KEY, 16))
5239 static void hci_io_capa_request_evt(struct hci_dev *hdev, void *data,
5240 struct sk_buff *skb)
5242 struct hci_ev_io_capa_request *ev = data;
5243 struct hci_conn *conn;
5245 bt_dev_dbg(hdev, "");
5249 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
5253 hci_conn_hold(conn);
5255 if (!hci_dev_test_flag(hdev, HCI_MGMT))
5258 /* Allow pairing if we're pairable, the initiators of the
5259 * pairing or if the remote is not requesting bonding.
5261 if (hci_dev_test_flag(hdev, HCI_BONDABLE) ||
5262 test_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags) ||
5263 (conn->remote_auth & ~0x01) == HCI_AT_NO_BONDING) {
5264 struct hci_cp_io_capability_reply cp;
5266 bacpy(&cp.bdaddr, &ev->bdaddr);
5267 /* Change the IO capability from KeyboardDisplay
5268 * to DisplayYesNo as it is not supported by BT spec. */
5269 cp.capability = (conn->io_capability == 0x04) ?
5270 HCI_IO_DISPLAY_YESNO : conn->io_capability;
5272 /* If we are initiators, there is no remote information yet */
5273 if (conn->remote_auth == 0xff) {
5274 /* Request MITM protection if our IO caps allow it
5275 * except for the no-bonding case.
5277 if (conn->io_capability != HCI_IO_NO_INPUT_OUTPUT &&
5278 conn->auth_type != HCI_AT_NO_BONDING)
5279 conn->auth_type |= 0x01;
5281 conn->auth_type = hci_get_auth_req(conn);
5284 /* If we're not bondable, force one of the non-bondable
5285 * authentication requirement values.
5287 if (!hci_dev_test_flag(hdev, HCI_BONDABLE))
5288 conn->auth_type &= HCI_AT_NO_BONDING_MITM;
5290 cp.authentication = conn->auth_type;
5291 cp.oob_data = bredr_oob_data_present(conn);
5293 hci_send_cmd(hdev, HCI_OP_IO_CAPABILITY_REPLY,
5296 struct hci_cp_io_capability_neg_reply cp;
5298 bacpy(&cp.bdaddr, &ev->bdaddr);
5299 cp.reason = HCI_ERROR_PAIRING_NOT_ALLOWED;
5301 hci_send_cmd(hdev, HCI_OP_IO_CAPABILITY_NEG_REPLY,
5306 hci_dev_unlock(hdev);
5309 static void hci_io_capa_reply_evt(struct hci_dev *hdev, void *data,
5310 struct sk_buff *skb)
5312 struct hci_ev_io_capa_reply *ev = data;
5313 struct hci_conn *conn;
5315 bt_dev_dbg(hdev, "");
5319 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
5323 conn->remote_cap = ev->capability;
5324 conn->remote_auth = ev->authentication;
5327 hci_dev_unlock(hdev);
5330 static void hci_user_confirm_request_evt(struct hci_dev *hdev, void *data,
5331 struct sk_buff *skb)
5333 struct hci_ev_user_confirm_req *ev = data;
5334 int loc_mitm, rem_mitm, confirm_hint = 0;
5335 struct hci_conn *conn;
5337 bt_dev_dbg(hdev, "");
5341 if (!hci_dev_test_flag(hdev, HCI_MGMT))
5344 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
5348 loc_mitm = (conn->auth_type & 0x01);
5349 rem_mitm = (conn->remote_auth & 0x01);
5351 /* If we require MITM but the remote device can't provide that
5352 * (it has NoInputNoOutput) then reject the confirmation
5353 * request. We check the security level here since it doesn't
5354 * necessarily match conn->auth_type.
5356 if (conn->pending_sec_level > BT_SECURITY_MEDIUM &&
5357 conn->remote_cap == HCI_IO_NO_INPUT_OUTPUT) {
5358 bt_dev_dbg(hdev, "Rejecting request: remote device can't provide MITM");
5359 hci_send_cmd(hdev, HCI_OP_USER_CONFIRM_NEG_REPLY,
5360 sizeof(ev->bdaddr), &ev->bdaddr);
5364 /* If no side requires MITM protection; auto-accept */
5365 if ((!loc_mitm || conn->remote_cap == HCI_IO_NO_INPUT_OUTPUT) &&
5366 (!rem_mitm || conn->io_capability == HCI_IO_NO_INPUT_OUTPUT)) {
5368 /* If we're not the initiators request authorization to
5369 * proceed from user space (mgmt_user_confirm with
5370 * confirm_hint set to 1). The exception is if neither
5371 * side had MITM or if the local IO capability is
5372 * NoInputNoOutput, in which case we do auto-accept
5374 if (!test_bit(HCI_CONN_AUTH_PEND, &conn->flags) &&
5375 conn->io_capability != HCI_IO_NO_INPUT_OUTPUT &&
5376 (loc_mitm || rem_mitm)) {
5377 bt_dev_dbg(hdev, "Confirming auto-accept as acceptor");
5382 /* If there already exists link key in local host, leave the
5383 * decision to user space since the remote device could be
5384 * legitimate or malicious.
5386 if (hci_find_link_key(hdev, &ev->bdaddr)) {
5387 bt_dev_dbg(hdev, "Local host already has link key");
5392 BT_DBG("Auto-accept of user confirmation with %ums delay",
5393 hdev->auto_accept_delay);
5395 if (hdev->auto_accept_delay > 0) {
5396 int delay = msecs_to_jiffies(hdev->auto_accept_delay);
5397 queue_delayed_work(conn->hdev->workqueue,
5398 &conn->auto_accept_work, delay);
5402 hci_send_cmd(hdev, HCI_OP_USER_CONFIRM_REPLY,
5403 sizeof(ev->bdaddr), &ev->bdaddr);
5408 mgmt_user_confirm_request(hdev, &ev->bdaddr, ACL_LINK, 0,
5409 le32_to_cpu(ev->passkey), confirm_hint);
5412 hci_dev_unlock(hdev);
5415 static void hci_user_passkey_request_evt(struct hci_dev *hdev, void *data,
5416 struct sk_buff *skb)
5418 struct hci_ev_user_passkey_req *ev = data;
5420 bt_dev_dbg(hdev, "");
5422 if (hci_dev_test_flag(hdev, HCI_MGMT))
5423 mgmt_user_passkey_request(hdev, &ev->bdaddr, ACL_LINK, 0);
5426 static void hci_user_passkey_notify_evt(struct hci_dev *hdev, void *data,
5427 struct sk_buff *skb)
5429 struct hci_ev_user_passkey_notify *ev = data;
5430 struct hci_conn *conn;
5432 bt_dev_dbg(hdev, "");
5434 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
5438 conn->passkey_notify = __le32_to_cpu(ev->passkey);
5439 conn->passkey_entered = 0;
5441 if (hci_dev_test_flag(hdev, HCI_MGMT))
5442 mgmt_user_passkey_notify(hdev, &conn->dst, conn->type,
5443 conn->dst_type, conn->passkey_notify,
5444 conn->passkey_entered);
5447 static void hci_keypress_notify_evt(struct hci_dev *hdev, void *data,
5448 struct sk_buff *skb)
5450 struct hci_ev_keypress_notify *ev = data;
5451 struct hci_conn *conn;
5453 bt_dev_dbg(hdev, "");
5455 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
5460 case HCI_KEYPRESS_STARTED:
5461 conn->passkey_entered = 0;
5464 case HCI_KEYPRESS_ENTERED:
5465 conn->passkey_entered++;
5468 case HCI_KEYPRESS_ERASED:
5469 conn->passkey_entered--;
5472 case HCI_KEYPRESS_CLEARED:
5473 conn->passkey_entered = 0;
5476 case HCI_KEYPRESS_COMPLETED:
5480 if (hci_dev_test_flag(hdev, HCI_MGMT))
5481 mgmt_user_passkey_notify(hdev, &conn->dst, conn->type,
5482 conn->dst_type, conn->passkey_notify,
5483 conn->passkey_entered);
5486 static void hci_simple_pair_complete_evt(struct hci_dev *hdev, void *data,
5487 struct sk_buff *skb)
5489 struct hci_ev_simple_pair_complete *ev = data;
5490 struct hci_conn *conn;
5492 bt_dev_dbg(hdev, "");
5496 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
5500 /* Reset the authentication requirement to unknown */
5501 conn->remote_auth = 0xff;
5503 /* To avoid duplicate auth_failed events to user space we check
5504 * the HCI_CONN_AUTH_PEND flag which will be set if we
5505 * initiated the authentication. A traditional auth_complete
5506 * event gets always produced as initiator and is also mapped to
5507 * the mgmt_auth_failed event */
5508 if (!test_bit(HCI_CONN_AUTH_PEND, &conn->flags) && ev->status)
5509 mgmt_auth_failed(conn, ev->status);
5511 hci_conn_drop(conn);
5514 hci_dev_unlock(hdev);
5517 static void hci_remote_host_features_evt(struct hci_dev *hdev, void *data,
5518 struct sk_buff *skb)
5520 struct hci_ev_remote_host_features *ev = data;
5521 struct inquiry_entry *ie;
5522 struct hci_conn *conn;
5524 bt_dev_dbg(hdev, "");
5528 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
5530 memcpy(conn->features[1], ev->features, 8);
5532 ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
5534 ie->data.ssp_mode = (ev->features[0] & LMP_HOST_SSP);
5536 hci_dev_unlock(hdev);
5539 static void hci_remote_oob_data_request_evt(struct hci_dev *hdev, void *edata,
5540 struct sk_buff *skb)
5542 struct hci_ev_remote_oob_data_request *ev = edata;
5543 struct oob_data *data;
5545 bt_dev_dbg(hdev, "");
5549 if (!hci_dev_test_flag(hdev, HCI_MGMT))
5552 data = hci_find_remote_oob_data(hdev, &ev->bdaddr, BDADDR_BREDR);
5554 struct hci_cp_remote_oob_data_neg_reply cp;
5556 bacpy(&cp.bdaddr, &ev->bdaddr);
5557 hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_DATA_NEG_REPLY,
5562 if (bredr_sc_enabled(hdev)) {
5563 struct hci_cp_remote_oob_ext_data_reply cp;
5565 bacpy(&cp.bdaddr, &ev->bdaddr);
5566 if (hci_dev_test_flag(hdev, HCI_SC_ONLY)) {
5567 memset(cp.hash192, 0, sizeof(cp.hash192));
5568 memset(cp.rand192, 0, sizeof(cp.rand192));
5570 memcpy(cp.hash192, data->hash192, sizeof(cp.hash192));
5571 memcpy(cp.rand192, data->rand192, sizeof(cp.rand192));
5573 memcpy(cp.hash256, data->hash256, sizeof(cp.hash256));
5574 memcpy(cp.rand256, data->rand256, sizeof(cp.rand256));
5576 hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_EXT_DATA_REPLY,
5579 struct hci_cp_remote_oob_data_reply cp;
5581 bacpy(&cp.bdaddr, &ev->bdaddr);
5582 memcpy(cp.hash, data->hash192, sizeof(cp.hash));
5583 memcpy(cp.rand, data->rand192, sizeof(cp.rand));
5585 hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_DATA_REPLY,
5590 hci_dev_unlock(hdev);
5593 #if IS_ENABLED(CONFIG_BT_HS)
5594 static void hci_chan_selected_evt(struct hci_dev *hdev, void *data,
5595 struct sk_buff *skb)
5597 struct hci_ev_channel_selected *ev = data;
5598 struct hci_conn *hcon;
5600 bt_dev_dbg(hdev, "handle 0x%2.2x", ev->phy_handle);
5602 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
5606 amp_read_loc_assoc_final_data(hdev, hcon);
5609 static void hci_phy_link_complete_evt(struct hci_dev *hdev, void *data,
5610 struct sk_buff *skb)
5612 struct hci_ev_phy_link_complete *ev = data;
5613 struct hci_conn *hcon, *bredr_hcon;
5615 bt_dev_dbg(hdev, "handle 0x%2.2x status 0x%2.2x", ev->phy_handle,
5620 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
5632 bredr_hcon = hcon->amp_mgr->l2cap_conn->hcon;
5634 hcon->state = BT_CONNECTED;
5635 bacpy(&hcon->dst, &bredr_hcon->dst);
5637 hci_conn_hold(hcon);
5638 hcon->disc_timeout = HCI_DISCONN_TIMEOUT;
5639 hci_conn_drop(hcon);
5641 hci_debugfs_create_conn(hcon);
5642 hci_conn_add_sysfs(hcon);
5644 amp_physical_cfm(bredr_hcon, hcon);
5647 hci_dev_unlock(hdev);
5650 static void hci_loglink_complete_evt(struct hci_dev *hdev, void *data,
5651 struct sk_buff *skb)
5653 struct hci_ev_logical_link_complete *ev = data;
5654 struct hci_conn *hcon;
5655 struct hci_chan *hchan;
5656 struct amp_mgr *mgr;
5658 bt_dev_dbg(hdev, "log_handle 0x%4.4x phy_handle 0x%2.2x status 0x%2.2x",
5659 le16_to_cpu(ev->handle), ev->phy_handle, ev->status);
5661 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
5665 /* Create AMP hchan */
5666 hchan = hci_chan_create(hcon);
5670 hchan->handle = le16_to_cpu(ev->handle);
5673 BT_DBG("hcon %p mgr %p hchan %p", hcon, hcon->amp_mgr, hchan);
5675 mgr = hcon->amp_mgr;
5676 if (mgr && mgr->bredr_chan) {
5677 struct l2cap_chan *bredr_chan = mgr->bredr_chan;
5679 l2cap_chan_lock(bredr_chan);
5681 bredr_chan->conn->mtu = hdev->block_mtu;
5682 l2cap_logical_cfm(bredr_chan, hchan, 0);
5683 hci_conn_hold(hcon);
5685 l2cap_chan_unlock(bredr_chan);
5689 static void hci_disconn_loglink_complete_evt(struct hci_dev *hdev, void *data,
5690 struct sk_buff *skb)
5692 struct hci_ev_disconn_logical_link_complete *ev = data;
5693 struct hci_chan *hchan;
5695 bt_dev_dbg(hdev, "handle 0x%4.4x status 0x%2.2x",
5696 le16_to_cpu(ev->handle), ev->status);
5703 hchan = hci_chan_lookup_handle(hdev, le16_to_cpu(ev->handle));
5704 if (!hchan || !hchan->amp)
5707 amp_destroy_logical_link(hchan, ev->reason);
5710 hci_dev_unlock(hdev);
5713 static void hci_disconn_phylink_complete_evt(struct hci_dev *hdev, void *data,
5714 struct sk_buff *skb)
5716 struct hci_ev_disconn_phy_link_complete *ev = data;
5717 struct hci_conn *hcon;
5719 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
5726 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
5727 if (hcon && hcon->type == AMP_LINK) {
5728 hcon->state = BT_CLOSED;
5729 hci_disconn_cfm(hcon, ev->reason);
5733 hci_dev_unlock(hdev);
5737 static void le_conn_update_addr(struct hci_conn *conn, bdaddr_t *bdaddr,
5738 u8 bdaddr_type, bdaddr_t *local_rpa)
5741 conn->dst_type = bdaddr_type;
5742 conn->resp_addr_type = bdaddr_type;
5743 bacpy(&conn->resp_addr, bdaddr);
5745 /* Check if the controller has set a Local RPA then it must be
5746 * used instead or hdev->rpa.
5748 if (local_rpa && bacmp(local_rpa, BDADDR_ANY)) {
5749 conn->init_addr_type = ADDR_LE_DEV_RANDOM;
5750 bacpy(&conn->init_addr, local_rpa);
5751 } else if (hci_dev_test_flag(conn->hdev, HCI_PRIVACY)) {
5752 conn->init_addr_type = ADDR_LE_DEV_RANDOM;
5753 bacpy(&conn->init_addr, &conn->hdev->rpa);
5755 hci_copy_identity_address(conn->hdev, &conn->init_addr,
5756 &conn->init_addr_type);
5759 conn->resp_addr_type = conn->hdev->adv_addr_type;
5760 /* Check if the controller has set a Local RPA then it must be
5761 * used instead or hdev->rpa.
5763 if (local_rpa && bacmp(local_rpa, BDADDR_ANY)) {
5764 conn->resp_addr_type = ADDR_LE_DEV_RANDOM;
5765 bacpy(&conn->resp_addr, local_rpa);
5766 } else if (conn->hdev->adv_addr_type == ADDR_LE_DEV_RANDOM) {
5767 /* In case of ext adv, resp_addr will be updated in
5768 * Adv Terminated event.
5770 if (!ext_adv_capable(conn->hdev))
5771 bacpy(&conn->resp_addr,
5772 &conn->hdev->random_addr);
5774 bacpy(&conn->resp_addr, &conn->hdev->bdaddr);
5777 conn->init_addr_type = bdaddr_type;
5778 bacpy(&conn->init_addr, bdaddr);
5780 /* For incoming connections, set the default minimum
5781 * and maximum connection interval. They will be used
5782 * to check if the parameters are in range and if not
5783 * trigger the connection update procedure.
5785 conn->le_conn_min_interval = conn->hdev->le_conn_min_interval;
5786 conn->le_conn_max_interval = conn->hdev->le_conn_max_interval;
5790 static void le_conn_complete_evt(struct hci_dev *hdev, u8 status,
5791 bdaddr_t *bdaddr, u8 bdaddr_type,
5792 bdaddr_t *local_rpa, u8 role, u16 handle,
5793 u16 interval, u16 latency,
5794 u16 supervision_timeout)
5796 struct hci_conn_params *params;
5797 struct hci_conn *conn;
5798 struct smp_irk *irk;
5803 /* All controllers implicitly stop advertising in the event of a
5804 * connection, so ensure that the state bit is cleared.
5806 hci_dev_clear_flag(hdev, HCI_LE_ADV);
5808 conn = hci_conn_hash_lookup_ba(hdev, LE_LINK, bdaddr);
5810 /* In case of error status and there is no connection pending
5811 * just unlock as there is nothing to cleanup.
5816 conn = hci_conn_add(hdev, LE_LINK, bdaddr, role);
5818 bt_dev_err(hdev, "no memory for new connection");
5822 conn->dst_type = bdaddr_type;
5824 /* If we didn't have a hci_conn object previously
5825 * but we're in central role this must be something
5826 * initiated using an accept list. Since accept list based
5827 * connections are not "first class citizens" we don't
5828 * have full tracking of them. Therefore, we go ahead
5829 * with a "best effort" approach of determining the
5830 * initiator address based on the HCI_PRIVACY flag.
5833 conn->resp_addr_type = bdaddr_type;
5834 bacpy(&conn->resp_addr, bdaddr);
5835 if (hci_dev_test_flag(hdev, HCI_PRIVACY)) {
5836 conn->init_addr_type = ADDR_LE_DEV_RANDOM;
5837 bacpy(&conn->init_addr, &hdev->rpa);
5839 hci_copy_identity_address(hdev,
5841 &conn->init_addr_type);
5845 cancel_delayed_work(&conn->le_conn_timeout);
5848 /* The HCI_LE_Connection_Complete event is only sent once per connection.
5849 * Processing it more than once per connection can corrupt kernel memory.
5851 * As the connection handle is set here for the first time, it indicates
5852 * whether the connection is already set up.
5854 if (conn->handle != HCI_CONN_HANDLE_UNSET) {
5855 bt_dev_err(hdev, "Ignoring HCI_Connection_Complete for existing connection");
5859 le_conn_update_addr(conn, bdaddr, bdaddr_type, local_rpa);
5861 /* Lookup the identity address from the stored connection
5862 * address and address type.
5864 * When establishing connections to an identity address, the
5865 * connection procedure will store the resolvable random
5866 * address first. Now if it can be converted back into the
5867 * identity address, start using the identity address from
5870 irk = hci_get_irk(hdev, &conn->dst, conn->dst_type);
5872 bacpy(&conn->dst, &irk->bdaddr);
5873 conn->dst_type = irk->addr_type;
5876 conn->dst_type = ev_bdaddr_type(hdev, conn->dst_type, NULL);
5878 if (handle > HCI_CONN_HANDLE_MAX) {
5879 bt_dev_err(hdev, "Invalid handle: 0x%4.4x > 0x%4.4x", handle,
5880 HCI_CONN_HANDLE_MAX);
5881 status = HCI_ERROR_INVALID_PARAMETERS;
5884 /* All connection failure handling is taken care of by the
5885 * hci_conn_failed function which is triggered by the HCI
5886 * request completion callbacks used for connecting.
5891 /* Drop the connection if it has been aborted */
5892 if (test_bit(HCI_CONN_CANCEL, &conn->flags)) {
5893 hci_conn_drop(conn);
5897 if (conn->dst_type == ADDR_LE_DEV_PUBLIC)
5898 addr_type = BDADDR_LE_PUBLIC;
5900 addr_type = BDADDR_LE_RANDOM;
5902 /* Drop the connection if the device is blocked */
5903 if (hci_bdaddr_list_lookup(&hdev->reject_list, &conn->dst, addr_type)) {
5904 hci_conn_drop(conn);
5908 if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
5909 mgmt_device_connected(hdev, conn, NULL, 0);
5911 conn->sec_level = BT_SECURITY_LOW;
5912 conn->handle = handle;
5913 conn->state = BT_CONFIG;
5915 /* Store current advertising instance as connection advertising instance
5916 * when sotfware rotation is in use so it can be re-enabled when
5919 if (!ext_adv_capable(hdev))
5920 conn->adv_instance = hdev->cur_adv_instance;
5922 conn->le_conn_interval = interval;
5923 conn->le_conn_latency = latency;
5924 conn->le_supv_timeout = supervision_timeout;
5926 hci_debugfs_create_conn(conn);
5927 hci_conn_add_sysfs(conn);
5929 /* The remote features procedure is defined for central
5930 * role only. So only in case of an initiated connection
5931 * request the remote features.
5933 * If the local controller supports peripheral-initiated features
5934 * exchange, then requesting the remote features in peripheral
5935 * role is possible. Otherwise just transition into the
5936 * connected state without requesting the remote features.
5939 (hdev->le_features[0] & HCI_LE_PERIPHERAL_FEATURES)) {
5940 struct hci_cp_le_read_remote_features cp;
5942 cp.handle = __cpu_to_le16(conn->handle);
5944 hci_send_cmd(hdev, HCI_OP_LE_READ_REMOTE_FEATURES,
5947 hci_conn_hold(conn);
5949 conn->state = BT_CONNECTED;
5950 hci_connect_cfm(conn, status);
5953 params = hci_pend_le_action_lookup(&hdev->pend_le_conns, &conn->dst,
5956 list_del_init(¶ms->action);
5958 hci_conn_drop(params->conn);
5959 hci_conn_put(params->conn);
5960 params->conn = NULL;
5965 hci_update_passive_scan(hdev);
5966 hci_dev_unlock(hdev);
5969 static void hci_le_conn_complete_evt(struct hci_dev *hdev, void *data,
5970 struct sk_buff *skb)
5972 struct hci_ev_le_conn_complete *ev = data;
5974 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
5976 le_conn_complete_evt(hdev, ev->status, &ev->bdaddr, ev->bdaddr_type,
5977 NULL, ev->role, le16_to_cpu(ev->handle),
5978 le16_to_cpu(ev->interval),
5979 le16_to_cpu(ev->latency),
5980 le16_to_cpu(ev->supervision_timeout));
5983 static void hci_le_enh_conn_complete_evt(struct hci_dev *hdev, void *data,
5984 struct sk_buff *skb)
5986 struct hci_ev_le_enh_conn_complete *ev = data;
5988 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
5990 le_conn_complete_evt(hdev, ev->status, &ev->bdaddr, ev->bdaddr_type,
5991 &ev->local_rpa, ev->role, le16_to_cpu(ev->handle),
5992 le16_to_cpu(ev->interval),
5993 le16_to_cpu(ev->latency),
5994 le16_to_cpu(ev->supervision_timeout));
5997 static void hci_le_ext_adv_term_evt(struct hci_dev *hdev, void *data,
5998 struct sk_buff *skb)
6000 struct hci_evt_le_ext_adv_set_term *ev = data;
6001 struct hci_conn *conn;
6002 struct adv_info *adv, *n;
6004 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
6006 /* The Bluetooth Core 5.3 specification clearly states that this event
6007 * shall not be sent when the Host disables the advertising set. So in
6008 * case of HCI_ERROR_CANCELLED_BY_HOST, just ignore the event.
6010 * When the Host disables an advertising set, all cleanup is done via
6011 * its command callback and not needed to be duplicated here.
6013 if (ev->status == HCI_ERROR_CANCELLED_BY_HOST) {
6014 bt_dev_warn_ratelimited(hdev, "Unexpected advertising set terminated event");
6020 adv = hci_find_adv_instance(hdev, ev->handle);
6026 /* Remove advertising as it has been terminated */
6027 hci_remove_adv_instance(hdev, ev->handle);
6028 mgmt_advertising_removed(NULL, hdev, ev->handle);
6030 list_for_each_entry_safe(adv, n, &hdev->adv_instances, list) {
6035 /* We are no longer advertising, clear HCI_LE_ADV */
6036 hci_dev_clear_flag(hdev, HCI_LE_ADV);
6041 adv->enabled = false;
6043 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->conn_handle));
6045 /* Store handle in the connection so the correct advertising
6046 * instance can be re-enabled when disconnected.
6048 conn->adv_instance = ev->handle;
6050 if (hdev->adv_addr_type != ADDR_LE_DEV_RANDOM ||
6051 bacmp(&conn->resp_addr, BDADDR_ANY))
6055 bacpy(&conn->resp_addr, &hdev->random_addr);
6060 bacpy(&conn->resp_addr, &adv->random_addr);
6064 hci_dev_unlock(hdev);
6067 static void hci_le_conn_update_complete_evt(struct hci_dev *hdev, void *data,
6068 struct sk_buff *skb)
6070 struct hci_ev_le_conn_update_complete *ev = data;
6071 struct hci_conn *conn;
6073 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
6080 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
6082 conn->le_conn_interval = le16_to_cpu(ev->interval);
6083 conn->le_conn_latency = le16_to_cpu(ev->latency);
6084 conn->le_supv_timeout = le16_to_cpu(ev->supervision_timeout);
6087 hci_dev_unlock(hdev);
6090 /* This function requires the caller holds hdev->lock */
6091 static struct hci_conn *check_pending_le_conn(struct hci_dev *hdev,
6093 u8 addr_type, bool addr_resolved,
6096 struct hci_conn *conn;
6097 struct hci_conn_params *params;
6099 /* If the event is not connectable don't proceed further */
6100 if (adv_type != LE_ADV_IND && adv_type != LE_ADV_DIRECT_IND)
6103 /* Ignore if the device is blocked or hdev is suspended */
6104 if (hci_bdaddr_list_lookup(&hdev->reject_list, addr, addr_type) ||
6108 /* Most controller will fail if we try to create new connections
6109 * while we have an existing one in peripheral role.
6111 if (hdev->conn_hash.le_num_peripheral > 0 &&
6112 (!test_bit(HCI_QUIRK_VALID_LE_STATES, &hdev->quirks) ||
6113 !(hdev->le_states[3] & 0x10)))
6116 /* If we're not connectable only connect devices that we have in
6117 * our pend_le_conns list.
6119 params = hci_pend_le_action_lookup(&hdev->pend_le_conns, addr,
6124 if (!params->explicit_connect) {
6125 switch (params->auto_connect) {
6126 case HCI_AUTO_CONN_DIRECT:
6127 /* Only devices advertising with ADV_DIRECT_IND are
6128 * triggering a connection attempt. This is allowing
6129 * incoming connections from peripheral devices.
6131 if (adv_type != LE_ADV_DIRECT_IND)
6134 case HCI_AUTO_CONN_ALWAYS:
6135 /* Devices advertising with ADV_IND or ADV_DIRECT_IND
6136 * are triggering a connection attempt. This means
6137 * that incoming connections from peripheral device are
6138 * accepted and also outgoing connections to peripheral
6139 * devices are established when found.
6147 conn = hci_connect_le(hdev, addr, addr_type, addr_resolved,
6148 BT_SECURITY_LOW, hdev->def_le_autoconnect_timeout,
6150 if (!IS_ERR(conn)) {
6151 /* If HCI_AUTO_CONN_EXPLICIT is set, conn is already owned
6152 * by higher layer that tried to connect, if no then
6153 * store the pointer since we don't really have any
6154 * other owner of the object besides the params that
6155 * triggered it. This way we can abort the connection if
6156 * the parameters get removed and keep the reference
6157 * count consistent once the connection is established.
6160 if (!params->explicit_connect)
6161 params->conn = hci_conn_get(conn);
6166 switch (PTR_ERR(conn)) {
6168 /* If hci_connect() returns -EBUSY it means there is already
6169 * an LE connection attempt going on. Since controllers don't
6170 * support more than one connection attempt at the time, we
6171 * don't consider this an error case.
6175 BT_DBG("Failed to connect: err %ld", PTR_ERR(conn));
6182 static void process_adv_report(struct hci_dev *hdev, u8 type, bdaddr_t *bdaddr,
6183 u8 bdaddr_type, bdaddr_t *direct_addr,
6184 u8 direct_addr_type, s8 rssi, u8 *data, u8 len,
6185 bool ext_adv, bool ctl_time, u64 instant)
6187 struct discovery_state *d = &hdev->discovery;
6188 struct smp_irk *irk;
6189 struct hci_conn *conn;
6190 bool match, bdaddr_resolved;
6196 case LE_ADV_DIRECT_IND:
6197 case LE_ADV_SCAN_IND:
6198 case LE_ADV_NONCONN_IND:
6199 case LE_ADV_SCAN_RSP:
6202 bt_dev_err_ratelimited(hdev, "unknown advertising packet "
6203 "type: 0x%02x", type);
6207 if (!ext_adv && len > HCI_MAX_AD_LENGTH) {
6208 bt_dev_err_ratelimited(hdev, "legacy adv larger than 31 bytes");
6212 /* Find the end of the data in case the report contains padded zero
6213 * bytes at the end causing an invalid length value.
6215 * When data is NULL, len is 0 so there is no need for extra ptr
6216 * check as 'ptr < data + 0' is already false in such case.
6218 for (ptr = data; ptr < data + len && *ptr; ptr += *ptr + 1) {
6219 if (ptr + 1 + *ptr > data + len)
6223 /* Adjust for actual length. This handles the case when remote
6224 * device is advertising with incorrect data length.
6228 /* If the direct address is present, then this report is from
6229 * a LE Direct Advertising Report event. In that case it is
6230 * important to see if the address is matching the local
6231 * controller address.
6233 if (!hci_dev_test_flag(hdev, HCI_MESH) && direct_addr) {
6234 direct_addr_type = ev_bdaddr_type(hdev, direct_addr_type,
6237 /* Only resolvable random addresses are valid for these
6238 * kind of reports and others can be ignored.
6240 if (!hci_bdaddr_is_rpa(direct_addr, direct_addr_type))
6243 /* If the controller is not using resolvable random
6244 * addresses, then this report can be ignored.
6246 if (!hci_dev_test_flag(hdev, HCI_PRIVACY))
6249 /* If the local IRK of the controller does not match
6250 * with the resolvable random address provided, then
6251 * this report can be ignored.
6253 if (!smp_irk_matches(hdev, hdev->irk, direct_addr))
6257 /* Check if we need to convert to identity address */
6258 irk = hci_get_irk(hdev, bdaddr, bdaddr_type);
6260 bdaddr = &irk->bdaddr;
6261 bdaddr_type = irk->addr_type;
6264 bdaddr_type = ev_bdaddr_type(hdev, bdaddr_type, &bdaddr_resolved);
6266 /* Check if we have been requested to connect to this device.
6268 * direct_addr is set only for directed advertising reports (it is NULL
6269 * for advertising reports) and is already verified to be RPA above.
6271 conn = check_pending_le_conn(hdev, bdaddr, bdaddr_type, bdaddr_resolved,
6273 if (!ext_adv && conn && type == LE_ADV_IND && len <= HCI_MAX_AD_LENGTH) {
6274 /* Store report for later inclusion by
6275 * mgmt_device_connected
6277 memcpy(conn->le_adv_data, data, len);
6278 conn->le_adv_data_len = len;
6281 if (type == LE_ADV_NONCONN_IND || type == LE_ADV_SCAN_IND)
6282 flags = MGMT_DEV_FOUND_NOT_CONNECTABLE;
6286 /* All scan results should be sent up for Mesh systems */
6287 if (hci_dev_test_flag(hdev, HCI_MESH)) {
6288 mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL,
6289 rssi, flags, data, len, NULL, 0, instant);
6293 /* Passive scanning shouldn't trigger any device found events,
6294 * except for devices marked as CONN_REPORT for which we do send
6295 * device found events, or advertisement monitoring requested.
6297 if (hdev->le_scan_type == LE_SCAN_PASSIVE) {
6298 if (type == LE_ADV_DIRECT_IND)
6301 if (!hci_pend_le_action_lookup(&hdev->pend_le_reports,
6302 bdaddr, bdaddr_type) &&
6303 idr_is_empty(&hdev->adv_monitors_idr))
6306 mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL,
6307 rssi, flags, data, len, NULL, 0, 0);
6311 /* When receiving non-connectable or scannable undirected
6312 * advertising reports, this means that the remote device is
6313 * not connectable and then clearly indicate this in the
6314 * device found event.
6316 * When receiving a scan response, then there is no way to
6317 * know if the remote device is connectable or not. However
6318 * since scan responses are merged with a previously seen
6319 * advertising report, the flags field from that report
6322 * In the really unlikely case that a controller get confused
6323 * and just sends a scan response event, then it is marked as
6324 * not connectable as well.
6326 if (type == LE_ADV_SCAN_RSP)
6327 flags = MGMT_DEV_FOUND_NOT_CONNECTABLE;
6329 /* If there's nothing pending either store the data from this
6330 * event or send an immediate device found event if the data
6331 * should not be stored for later.
6333 if (!ext_adv && !has_pending_adv_report(hdev)) {
6334 /* If the report will trigger a SCAN_REQ store it for
6337 if (type == LE_ADV_IND || type == LE_ADV_SCAN_IND) {
6338 store_pending_adv_report(hdev, bdaddr, bdaddr_type,
6339 rssi, flags, data, len);
6343 mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL,
6344 rssi, flags, data, len, NULL, 0, 0);
6348 /* Check if the pending report is for the same device as the new one */
6349 match = (!bacmp(bdaddr, &d->last_adv_addr) &&
6350 bdaddr_type == d->last_adv_addr_type);
6352 /* If the pending data doesn't match this report or this isn't a
6353 * scan response (e.g. we got a duplicate ADV_IND) then force
6354 * sending of the pending data.
6356 if (type != LE_ADV_SCAN_RSP || !match) {
6357 /* Send out whatever is in the cache, but skip duplicates */
6359 mgmt_device_found(hdev, &d->last_adv_addr, LE_LINK,
6360 d->last_adv_addr_type, NULL,
6361 d->last_adv_rssi, d->last_adv_flags,
6363 d->last_adv_data_len, NULL, 0, 0);
6365 /* If the new report will trigger a SCAN_REQ store it for
6368 if (!ext_adv && (type == LE_ADV_IND ||
6369 type == LE_ADV_SCAN_IND)) {
6370 store_pending_adv_report(hdev, bdaddr, bdaddr_type,
6371 rssi, flags, data, len);
6375 /* The advertising reports cannot be merged, so clear
6376 * the pending report and send out a device found event.
6378 clear_pending_adv_report(hdev);
6379 mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL,
6380 rssi, flags, data, len, NULL, 0, 0);
6384 /* If we get here we've got a pending ADV_IND or ADV_SCAN_IND and
6385 * the new event is a SCAN_RSP. We can therefore proceed with
6386 * sending a merged device found event.
6388 mgmt_device_found(hdev, &d->last_adv_addr, LE_LINK,
6389 d->last_adv_addr_type, NULL, rssi, d->last_adv_flags,
6390 d->last_adv_data, d->last_adv_data_len, data, len, 0);
6391 clear_pending_adv_report(hdev);
6394 static void hci_le_adv_report_evt(struct hci_dev *hdev, void *data,
6395 struct sk_buff *skb)
6397 struct hci_ev_le_advertising_report *ev = data;
6398 u64 instant = jiffies;
6406 struct hci_ev_le_advertising_info *info;
6409 info = hci_le_ev_skb_pull(hdev, skb,
6410 HCI_EV_LE_ADVERTISING_REPORT,
6415 if (!hci_le_ev_skb_pull(hdev, skb, HCI_EV_LE_ADVERTISING_REPORT,
6419 if (info->length <= HCI_MAX_AD_LENGTH) {
6420 rssi = info->data[info->length];
6421 process_adv_report(hdev, info->type, &info->bdaddr,
6422 info->bdaddr_type, NULL, 0, rssi,
6423 info->data, info->length, false,
6426 bt_dev_err(hdev, "Dropping invalid advertising data");
6430 hci_dev_unlock(hdev);
6433 static u8 ext_evt_type_to_legacy(struct hci_dev *hdev, u16 evt_type)
6435 if (evt_type & LE_EXT_ADV_LEGACY_PDU) {
6437 case LE_LEGACY_ADV_IND:
6439 case LE_LEGACY_ADV_DIRECT_IND:
6440 return LE_ADV_DIRECT_IND;
6441 case LE_LEGACY_ADV_SCAN_IND:
6442 return LE_ADV_SCAN_IND;
6443 case LE_LEGACY_NONCONN_IND:
6444 return LE_ADV_NONCONN_IND;
6445 case LE_LEGACY_SCAN_RSP_ADV:
6446 case LE_LEGACY_SCAN_RSP_ADV_SCAN:
6447 return LE_ADV_SCAN_RSP;
6453 if (evt_type & LE_EXT_ADV_CONN_IND) {
6454 if (evt_type & LE_EXT_ADV_DIRECT_IND)
6455 return LE_ADV_DIRECT_IND;
6460 if (evt_type & LE_EXT_ADV_SCAN_RSP)
6461 return LE_ADV_SCAN_RSP;
6463 if (evt_type & LE_EXT_ADV_SCAN_IND)
6464 return LE_ADV_SCAN_IND;
6466 if (evt_type == LE_EXT_ADV_NON_CONN_IND ||
6467 evt_type & LE_EXT_ADV_DIRECT_IND)
6468 return LE_ADV_NONCONN_IND;
6471 bt_dev_err_ratelimited(hdev, "Unknown advertising packet type: 0x%02x",
6474 return LE_ADV_INVALID;
6477 static void hci_le_ext_adv_report_evt(struct hci_dev *hdev, void *data,
6478 struct sk_buff *skb)
6480 struct hci_ev_le_ext_adv_report *ev = data;
6481 u64 instant = jiffies;
6489 struct hci_ev_le_ext_adv_info *info;
6493 info = hci_le_ev_skb_pull(hdev, skb, HCI_EV_LE_EXT_ADV_REPORT,
6498 if (!hci_le_ev_skb_pull(hdev, skb, HCI_EV_LE_EXT_ADV_REPORT,
6502 evt_type = __le16_to_cpu(info->type) & LE_EXT_ADV_EVT_TYPE_MASK;
6503 legacy_evt_type = ext_evt_type_to_legacy(hdev, evt_type);
6504 if (legacy_evt_type != LE_ADV_INVALID) {
6505 process_adv_report(hdev, legacy_evt_type, &info->bdaddr,
6506 info->bdaddr_type, NULL, 0,
6507 info->rssi, info->data, info->length,
6508 !(evt_type & LE_EXT_ADV_LEGACY_PDU),
6513 hci_dev_unlock(hdev);
6516 static int hci_le_pa_term_sync(struct hci_dev *hdev, __le16 handle)
6518 struct hci_cp_le_pa_term_sync cp;
6520 memset(&cp, 0, sizeof(cp));
6523 return hci_send_cmd(hdev, HCI_OP_LE_PA_TERM_SYNC, sizeof(cp), &cp);
6526 static void hci_le_pa_sync_estabilished_evt(struct hci_dev *hdev, void *data,
6527 struct sk_buff *skb)
6529 struct hci_ev_le_pa_sync_established *ev = data;
6530 int mask = hdev->link_mode;
6533 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
6540 hci_dev_clear_flag(hdev, HCI_PA_SYNC);
6542 mask |= hci_proto_connect_ind(hdev, &ev->bdaddr, ISO_LINK, &flags);
6543 if (!(mask & HCI_LM_ACCEPT))
6544 hci_le_pa_term_sync(hdev, ev->handle);
6546 hci_dev_unlock(hdev);
6549 static void hci_le_remote_feat_complete_evt(struct hci_dev *hdev, void *data,
6550 struct sk_buff *skb)
6552 struct hci_ev_le_remote_feat_complete *ev = data;
6553 struct hci_conn *conn;
6555 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
6559 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
6562 memcpy(conn->features[0], ev->features, 8);
6564 if (conn->state == BT_CONFIG) {
6567 /* If the local controller supports peripheral-initiated
6568 * features exchange, but the remote controller does
6569 * not, then it is possible that the error code 0x1a
6570 * for unsupported remote feature gets returned.
6572 * In this specific case, allow the connection to
6573 * transition into connected state and mark it as
6576 if (!conn->out && ev->status == 0x1a &&
6577 (hdev->le_features[0] & HCI_LE_PERIPHERAL_FEATURES))
6580 status = ev->status;
6582 conn->state = BT_CONNECTED;
6583 hci_connect_cfm(conn, status);
6584 hci_conn_drop(conn);
6588 hci_dev_unlock(hdev);
6591 static void hci_le_ltk_request_evt(struct hci_dev *hdev, void *data,
6592 struct sk_buff *skb)
6594 struct hci_ev_le_ltk_req *ev = data;
6595 struct hci_cp_le_ltk_reply cp;
6596 struct hci_cp_le_ltk_neg_reply neg;
6597 struct hci_conn *conn;
6598 struct smp_ltk *ltk;
6600 bt_dev_dbg(hdev, "handle 0x%4.4x", __le16_to_cpu(ev->handle));
6604 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
6608 ltk = hci_find_ltk(hdev, &conn->dst, conn->dst_type, conn->role);
6612 if (smp_ltk_is_sc(ltk)) {
6613 /* With SC both EDiv and Rand are set to zero */
6614 if (ev->ediv || ev->rand)
6617 /* For non-SC keys check that EDiv and Rand match */
6618 if (ev->ediv != ltk->ediv || ev->rand != ltk->rand)
6622 memcpy(cp.ltk, ltk->val, ltk->enc_size);
6623 memset(cp.ltk + ltk->enc_size, 0, sizeof(cp.ltk) - ltk->enc_size);
6624 cp.handle = cpu_to_le16(conn->handle);
6626 conn->pending_sec_level = smp_ltk_sec_level(ltk);
6628 conn->enc_key_size = ltk->enc_size;
6630 hci_send_cmd(hdev, HCI_OP_LE_LTK_REPLY, sizeof(cp), &cp);
6632 /* Ref. Bluetooth Core SPEC pages 1975 and 2004. STK is a
6633 * temporary key used to encrypt a connection following
6634 * pairing. It is used during the Encrypted Session Setup to
6635 * distribute the keys. Later, security can be re-established
6636 * using a distributed LTK.
6638 if (ltk->type == SMP_STK) {
6639 set_bit(HCI_CONN_STK_ENCRYPT, &conn->flags);
6640 list_del_rcu(<k->list);
6641 kfree_rcu(ltk, rcu);
6643 clear_bit(HCI_CONN_STK_ENCRYPT, &conn->flags);
6646 hci_dev_unlock(hdev);
6651 neg.handle = ev->handle;
6652 hci_send_cmd(hdev, HCI_OP_LE_LTK_NEG_REPLY, sizeof(neg), &neg);
6653 hci_dev_unlock(hdev);
6656 static void send_conn_param_neg_reply(struct hci_dev *hdev, u16 handle,
6659 struct hci_cp_le_conn_param_req_neg_reply cp;
6661 cp.handle = cpu_to_le16(handle);
6664 hci_send_cmd(hdev, HCI_OP_LE_CONN_PARAM_REQ_NEG_REPLY, sizeof(cp),
6668 static void hci_le_remote_conn_param_req_evt(struct hci_dev *hdev, void *data,
6669 struct sk_buff *skb)
6671 struct hci_ev_le_remote_conn_param_req *ev = data;
6672 struct hci_cp_le_conn_param_req_reply cp;
6673 struct hci_conn *hcon;
6674 u16 handle, min, max, latency, timeout;
6676 bt_dev_dbg(hdev, "handle 0x%4.4x", __le16_to_cpu(ev->handle));
6678 handle = le16_to_cpu(ev->handle);
6679 min = le16_to_cpu(ev->interval_min);
6680 max = le16_to_cpu(ev->interval_max);
6681 latency = le16_to_cpu(ev->latency);
6682 timeout = le16_to_cpu(ev->timeout);
6684 hcon = hci_conn_hash_lookup_handle(hdev, handle);
6685 if (!hcon || hcon->state != BT_CONNECTED)
6686 return send_conn_param_neg_reply(hdev, handle,
6687 HCI_ERROR_UNKNOWN_CONN_ID);
6689 if (hci_check_conn_params(min, max, latency, timeout))
6690 return send_conn_param_neg_reply(hdev, handle,
6691 HCI_ERROR_INVALID_LL_PARAMS);
6693 if (hcon->role == HCI_ROLE_MASTER) {
6694 struct hci_conn_params *params;
6699 params = hci_conn_params_lookup(hdev, &hcon->dst,
6702 params->conn_min_interval = min;
6703 params->conn_max_interval = max;
6704 params->conn_latency = latency;
6705 params->supervision_timeout = timeout;
6711 hci_dev_unlock(hdev);
6713 mgmt_new_conn_param(hdev, &hcon->dst, hcon->dst_type,
6714 store_hint, min, max, latency, timeout);
6717 cp.handle = ev->handle;
6718 cp.interval_min = ev->interval_min;
6719 cp.interval_max = ev->interval_max;
6720 cp.latency = ev->latency;
6721 cp.timeout = ev->timeout;
6725 hci_send_cmd(hdev, HCI_OP_LE_CONN_PARAM_REQ_REPLY, sizeof(cp), &cp);
6728 static void hci_le_direct_adv_report_evt(struct hci_dev *hdev, void *data,
6729 struct sk_buff *skb)
6731 struct hci_ev_le_direct_adv_report *ev = data;
6732 u64 instant = jiffies;
6735 if (!hci_le_ev_skb_pull(hdev, skb, HCI_EV_LE_DIRECT_ADV_REPORT,
6736 flex_array_size(ev, info, ev->num)))
6744 for (i = 0; i < ev->num; i++) {
6745 struct hci_ev_le_direct_adv_info *info = &ev->info[i];
6747 process_adv_report(hdev, info->type, &info->bdaddr,
6748 info->bdaddr_type, &info->direct_addr,
6749 info->direct_addr_type, info->rssi, NULL, 0,
6750 false, false, instant);
6753 hci_dev_unlock(hdev);
6756 static void hci_le_phy_update_evt(struct hci_dev *hdev, void *data,
6757 struct sk_buff *skb)
6759 struct hci_ev_le_phy_update_complete *ev = data;
6760 struct hci_conn *conn;
6762 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
6769 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
6773 conn->le_tx_phy = ev->tx_phy;
6774 conn->le_rx_phy = ev->rx_phy;
6777 hci_dev_unlock(hdev);
6780 static void hci_le_cis_estabilished_evt(struct hci_dev *hdev, void *data,
6781 struct sk_buff *skb)
6783 struct hci_evt_le_cis_established *ev = data;
6784 struct hci_conn *conn;
6785 u16 handle = __le16_to_cpu(ev->handle);
6787 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
6791 conn = hci_conn_hash_lookup_handle(hdev, handle);
6794 "Unable to find connection with handle 0x%4.4x",
6799 if (conn->type != ISO_LINK) {
6801 "Invalid connection link type handle 0x%4.4x",
6806 if (conn->role == HCI_ROLE_SLAVE) {
6809 memset(&interval, 0, sizeof(interval));
6811 memcpy(&interval, ev->c_latency, sizeof(ev->c_latency));
6812 conn->iso_qos.ucast.in.interval = le32_to_cpu(interval);
6813 memcpy(&interval, ev->p_latency, sizeof(ev->p_latency));
6814 conn->iso_qos.ucast.out.interval = le32_to_cpu(interval);
6815 conn->iso_qos.ucast.in.latency = le16_to_cpu(ev->interval);
6816 conn->iso_qos.ucast.out.latency = le16_to_cpu(ev->interval);
6817 conn->iso_qos.ucast.in.sdu = le16_to_cpu(ev->c_mtu);
6818 conn->iso_qos.ucast.out.sdu = le16_to_cpu(ev->p_mtu);
6819 conn->iso_qos.ucast.in.phy = ev->c_phy;
6820 conn->iso_qos.ucast.out.phy = ev->p_phy;
6824 conn->state = BT_CONNECTED;
6825 hci_debugfs_create_conn(conn);
6826 hci_conn_add_sysfs(conn);
6827 hci_iso_setup_path(conn);
6831 hci_connect_cfm(conn, ev->status);
6835 hci_dev_unlock(hdev);
6838 static void hci_le_reject_cis(struct hci_dev *hdev, __le16 handle)
6840 struct hci_cp_le_reject_cis cp;
6842 memset(&cp, 0, sizeof(cp));
6844 cp.reason = HCI_ERROR_REJ_BAD_ADDR;
6845 hci_send_cmd(hdev, HCI_OP_LE_REJECT_CIS, sizeof(cp), &cp);
6848 static void hci_le_accept_cis(struct hci_dev *hdev, __le16 handle)
6850 struct hci_cp_le_accept_cis cp;
6852 memset(&cp, 0, sizeof(cp));
6854 hci_send_cmd(hdev, HCI_OP_LE_ACCEPT_CIS, sizeof(cp), &cp);
6857 static void hci_le_cis_req_evt(struct hci_dev *hdev, void *data,
6858 struct sk_buff *skb)
6860 struct hci_evt_le_cis_req *ev = data;
6861 u16 acl_handle, cis_handle;
6862 struct hci_conn *acl, *cis;
6866 acl_handle = __le16_to_cpu(ev->acl_handle);
6867 cis_handle = __le16_to_cpu(ev->cis_handle);
6869 bt_dev_dbg(hdev, "acl 0x%4.4x handle 0x%4.4x cig 0x%2.2x cis 0x%2.2x",
6870 acl_handle, cis_handle, ev->cig_id, ev->cis_id);
6874 acl = hci_conn_hash_lookup_handle(hdev, acl_handle);
6878 mask = hci_proto_connect_ind(hdev, &acl->dst, ISO_LINK, &flags);
6879 if (!(mask & HCI_LM_ACCEPT)) {
6880 hci_le_reject_cis(hdev, ev->cis_handle);
6884 cis = hci_conn_hash_lookup_handle(hdev, cis_handle);
6886 cis = hci_conn_add(hdev, ISO_LINK, &acl->dst, HCI_ROLE_SLAVE);
6888 hci_le_reject_cis(hdev, ev->cis_handle);
6891 cis->handle = cis_handle;
6894 cis->iso_qos.ucast.cig = ev->cig_id;
6895 cis->iso_qos.ucast.cis = ev->cis_id;
6897 if (!(flags & HCI_PROTO_DEFER)) {
6898 hci_le_accept_cis(hdev, ev->cis_handle);
6900 cis->state = BT_CONNECT2;
6901 hci_connect_cfm(cis, 0);
6905 hci_dev_unlock(hdev);
6908 static void hci_le_create_big_complete_evt(struct hci_dev *hdev, void *data,
6909 struct sk_buff *skb)
6911 struct hci_evt_le_create_big_complete *ev = data;
6912 struct hci_conn *conn;
6914 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
6916 if (!hci_le_ev_skb_pull(hdev, skb, HCI_EVT_LE_CREATE_BIG_COMPLETE,
6917 flex_array_size(ev, bis_handle, ev->num_bis)))
6922 conn = hci_conn_hash_lookup_big(hdev, ev->handle);
6926 if (conn->type != ISO_LINK) {
6928 "Invalid connection link type handle 0x%2.2x",
6934 conn->handle = __le16_to_cpu(ev->bis_handle[0]);
6937 conn->state = BT_CONNECTED;
6938 hci_debugfs_create_conn(conn);
6939 hci_conn_add_sysfs(conn);
6940 hci_iso_setup_path(conn);
6944 hci_connect_cfm(conn, ev->status);
6948 hci_dev_unlock(hdev);
6951 static void hci_le_big_sync_established_evt(struct hci_dev *hdev, void *data,
6952 struct sk_buff *skb)
6954 struct hci_evt_le_big_sync_estabilished *ev = data;
6955 struct hci_conn *bis;
6958 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
6960 if (!hci_le_ev_skb_pull(hdev, skb, HCI_EVT_LE_BIG_SYNC_ESTABILISHED,
6961 flex_array_size(ev, bis, ev->num_bis)))
6969 for (i = 0; i < ev->num_bis; i++) {
6970 u16 handle = le16_to_cpu(ev->bis[i]);
6973 bis = hci_conn_hash_lookup_handle(hdev, handle);
6975 bis = hci_conn_add(hdev, ISO_LINK, BDADDR_ANY,
6979 bis->handle = handle;
6982 bis->iso_qos.bcast.big = ev->handle;
6983 memset(&interval, 0, sizeof(interval));
6984 memcpy(&interval, ev->latency, sizeof(ev->latency));
6985 bis->iso_qos.bcast.in.interval = le32_to_cpu(interval);
6986 /* Convert ISO Interval (1.25 ms slots) to latency (ms) */
6987 bis->iso_qos.bcast.in.latency = le16_to_cpu(ev->interval) * 125 / 100;
6988 bis->iso_qos.bcast.in.sdu = le16_to_cpu(ev->max_pdu);
6990 hci_iso_setup_path(bis);
6993 hci_dev_unlock(hdev);
6996 static void hci_le_big_info_adv_report_evt(struct hci_dev *hdev, void *data,
6997 struct sk_buff *skb)
6999 struct hci_evt_le_big_info_adv_report *ev = data;
7000 int mask = hdev->link_mode;
7003 bt_dev_dbg(hdev, "sync_handle 0x%4.4x", le16_to_cpu(ev->sync_handle));
7007 mask |= hci_proto_connect_ind(hdev, BDADDR_ANY, ISO_LINK, &flags);
7008 if (!(mask & HCI_LM_ACCEPT))
7009 hci_le_pa_term_sync(hdev, ev->sync_handle);
7011 hci_dev_unlock(hdev);
7014 #define HCI_LE_EV_VL(_op, _func, _min_len, _max_len) \
7017 .min_len = _min_len, \
7018 .max_len = _max_len, \
7021 #define HCI_LE_EV(_op, _func, _len) \
7022 HCI_LE_EV_VL(_op, _func, _len, _len)
7024 #define HCI_LE_EV_STATUS(_op, _func) \
7025 HCI_LE_EV(_op, _func, sizeof(struct hci_ev_status))
7027 /* Entries in this table shall have their position according to the subevent
7028 * opcode they handle so the use of the macros above is recommend since it does
7029 * attempt to initialize at its proper index using Designated Initializers that
7030 * way events without a callback function can be ommited.
7032 static const struct hci_le_ev {
7033 void (*func)(struct hci_dev *hdev, void *data, struct sk_buff *skb);
7036 } hci_le_ev_table[U8_MAX + 1] = {
7037 /* [0x01 = HCI_EV_LE_CONN_COMPLETE] */
7038 HCI_LE_EV(HCI_EV_LE_CONN_COMPLETE, hci_le_conn_complete_evt,
7039 sizeof(struct hci_ev_le_conn_complete)),
7040 /* [0x02 = HCI_EV_LE_ADVERTISING_REPORT] */
7041 HCI_LE_EV_VL(HCI_EV_LE_ADVERTISING_REPORT, hci_le_adv_report_evt,
7042 sizeof(struct hci_ev_le_advertising_report),
7043 HCI_MAX_EVENT_SIZE),
7044 /* [0x03 = HCI_EV_LE_CONN_UPDATE_COMPLETE] */
7045 HCI_LE_EV(HCI_EV_LE_CONN_UPDATE_COMPLETE,
7046 hci_le_conn_update_complete_evt,
7047 sizeof(struct hci_ev_le_conn_update_complete)),
7048 /* [0x04 = HCI_EV_LE_REMOTE_FEAT_COMPLETE] */
7049 HCI_LE_EV(HCI_EV_LE_REMOTE_FEAT_COMPLETE,
7050 hci_le_remote_feat_complete_evt,
7051 sizeof(struct hci_ev_le_remote_feat_complete)),
7052 /* [0x05 = HCI_EV_LE_LTK_REQ] */
7053 HCI_LE_EV(HCI_EV_LE_LTK_REQ, hci_le_ltk_request_evt,
7054 sizeof(struct hci_ev_le_ltk_req)),
7055 /* [0x06 = HCI_EV_LE_REMOTE_CONN_PARAM_REQ] */
7056 HCI_LE_EV(HCI_EV_LE_REMOTE_CONN_PARAM_REQ,
7057 hci_le_remote_conn_param_req_evt,
7058 sizeof(struct hci_ev_le_remote_conn_param_req)),
7059 /* [0x0a = HCI_EV_LE_ENHANCED_CONN_COMPLETE] */
7060 HCI_LE_EV(HCI_EV_LE_ENHANCED_CONN_COMPLETE,
7061 hci_le_enh_conn_complete_evt,
7062 sizeof(struct hci_ev_le_enh_conn_complete)),
7063 /* [0x0b = HCI_EV_LE_DIRECT_ADV_REPORT] */
7064 HCI_LE_EV_VL(HCI_EV_LE_DIRECT_ADV_REPORT, hci_le_direct_adv_report_evt,
7065 sizeof(struct hci_ev_le_direct_adv_report),
7066 HCI_MAX_EVENT_SIZE),
7067 /* [0x0c = HCI_EV_LE_PHY_UPDATE_COMPLETE] */
7068 HCI_LE_EV(HCI_EV_LE_PHY_UPDATE_COMPLETE, hci_le_phy_update_evt,
7069 sizeof(struct hci_ev_le_phy_update_complete)),
7070 /* [0x0d = HCI_EV_LE_EXT_ADV_REPORT] */
7071 HCI_LE_EV_VL(HCI_EV_LE_EXT_ADV_REPORT, hci_le_ext_adv_report_evt,
7072 sizeof(struct hci_ev_le_ext_adv_report),
7073 HCI_MAX_EVENT_SIZE),
7074 /* [0x0e = HCI_EV_LE_PA_SYNC_ESTABLISHED] */
7075 HCI_LE_EV(HCI_EV_LE_PA_SYNC_ESTABLISHED,
7076 hci_le_pa_sync_estabilished_evt,
7077 sizeof(struct hci_ev_le_pa_sync_established)),
7078 /* [0x12 = HCI_EV_LE_EXT_ADV_SET_TERM] */
7079 HCI_LE_EV(HCI_EV_LE_EXT_ADV_SET_TERM, hci_le_ext_adv_term_evt,
7080 sizeof(struct hci_evt_le_ext_adv_set_term)),
7081 /* [0x19 = HCI_EVT_LE_CIS_ESTABLISHED] */
7082 HCI_LE_EV(HCI_EVT_LE_CIS_ESTABLISHED, hci_le_cis_estabilished_evt,
7083 sizeof(struct hci_evt_le_cis_established)),
7084 /* [0x1a = HCI_EVT_LE_CIS_REQ] */
7085 HCI_LE_EV(HCI_EVT_LE_CIS_REQ, hci_le_cis_req_evt,
7086 sizeof(struct hci_evt_le_cis_req)),
7087 /* [0x1b = HCI_EVT_LE_CREATE_BIG_COMPLETE] */
7088 HCI_LE_EV_VL(HCI_EVT_LE_CREATE_BIG_COMPLETE,
7089 hci_le_create_big_complete_evt,
7090 sizeof(struct hci_evt_le_create_big_complete),
7091 HCI_MAX_EVENT_SIZE),
7092 /* [0x1d = HCI_EV_LE_BIG_SYNC_ESTABILISHED] */
7093 HCI_LE_EV_VL(HCI_EVT_LE_BIG_SYNC_ESTABILISHED,
7094 hci_le_big_sync_established_evt,
7095 sizeof(struct hci_evt_le_big_sync_estabilished),
7096 HCI_MAX_EVENT_SIZE),
7097 /* [0x22 = HCI_EVT_LE_BIG_INFO_ADV_REPORT] */
7098 HCI_LE_EV_VL(HCI_EVT_LE_BIG_INFO_ADV_REPORT,
7099 hci_le_big_info_adv_report_evt,
7100 sizeof(struct hci_evt_le_big_info_adv_report),
7101 HCI_MAX_EVENT_SIZE),
7104 static void hci_le_meta_evt(struct hci_dev *hdev, void *data,
7105 struct sk_buff *skb, u16 *opcode, u8 *status,
7106 hci_req_complete_t *req_complete,
7107 hci_req_complete_skb_t *req_complete_skb)
7109 struct hci_ev_le_meta *ev = data;
7110 const struct hci_le_ev *subev;
7112 bt_dev_dbg(hdev, "subevent 0x%2.2x", ev->subevent);
7114 /* Only match event if command OGF is for LE */
7115 if (hdev->sent_cmd &&
7116 hci_opcode_ogf(hci_skb_opcode(hdev->sent_cmd)) == 0x08 &&
7117 hci_skb_event(hdev->sent_cmd) == ev->subevent) {
7118 *opcode = hci_skb_opcode(hdev->sent_cmd);
7119 hci_req_cmd_complete(hdev, *opcode, 0x00, req_complete,
7123 subev = &hci_le_ev_table[ev->subevent];
7127 if (skb->len < subev->min_len) {
7128 bt_dev_err(hdev, "unexpected subevent 0x%2.2x length: %u < %u",
7129 ev->subevent, skb->len, subev->min_len);
7133 /* Just warn if the length is over max_len size it still be
7134 * possible to partially parse the event so leave to callback to
7135 * decide if that is acceptable.
7137 if (skb->len > subev->max_len)
7138 bt_dev_warn(hdev, "unexpected subevent 0x%2.2x length: %u > %u",
7139 ev->subevent, skb->len, subev->max_len);
7140 data = hci_le_ev_skb_pull(hdev, skb, ev->subevent, subev->min_len);
7144 subev->func(hdev, data, skb);
7147 static bool hci_get_cmd_complete(struct hci_dev *hdev, u16 opcode,
7148 u8 event, struct sk_buff *skb)
7150 struct hci_ev_cmd_complete *ev;
7151 struct hci_event_hdr *hdr;
7156 hdr = hci_ev_skb_pull(hdev, skb, event, sizeof(*hdr));
7161 if (hdr->evt != event)
7166 /* Check if request ended in Command Status - no way to retrieve
7167 * any extra parameters in this case.
7169 if (hdr->evt == HCI_EV_CMD_STATUS)
7172 if (hdr->evt != HCI_EV_CMD_COMPLETE) {
7173 bt_dev_err(hdev, "last event is not cmd complete (0x%2.2x)",
7178 ev = hci_cc_skb_pull(hdev, skb, opcode, sizeof(*ev));
7182 if (opcode != __le16_to_cpu(ev->opcode)) {
7183 BT_DBG("opcode doesn't match (0x%2.2x != 0x%2.2x)", opcode,
7184 __le16_to_cpu(ev->opcode));
7191 static void hci_store_wake_reason(struct hci_dev *hdev, u8 event,
7192 struct sk_buff *skb)
7194 struct hci_ev_le_advertising_info *adv;
7195 struct hci_ev_le_direct_adv_info *direct_adv;
7196 struct hci_ev_le_ext_adv_info *ext_adv;
7197 const struct hci_ev_conn_complete *conn_complete = (void *)skb->data;
7198 const struct hci_ev_conn_request *conn_request = (void *)skb->data;
7202 /* If we are currently suspended and this is the first BT event seen,
7203 * save the wake reason associated with the event.
7205 if (!hdev->suspended || hdev->wake_reason)
7208 /* Default to remote wake. Values for wake_reason are documented in the
7209 * Bluez mgmt api docs.
7211 hdev->wake_reason = MGMT_WAKE_REASON_REMOTE_WAKE;
7213 /* Once configured for remote wakeup, we should only wake up for
7214 * reconnections. It's useful to see which device is waking us up so
7215 * keep track of the bdaddr of the connection event that woke us up.
7217 if (event == HCI_EV_CONN_REQUEST) {
7218 bacpy(&hdev->wake_addr, &conn_complete->bdaddr);
7219 hdev->wake_addr_type = BDADDR_BREDR;
7220 } else if (event == HCI_EV_CONN_COMPLETE) {
7221 bacpy(&hdev->wake_addr, &conn_request->bdaddr);
7222 hdev->wake_addr_type = BDADDR_BREDR;
7223 } else if (event == HCI_EV_LE_META) {
7224 struct hci_ev_le_meta *le_ev = (void *)skb->data;
7225 u8 subevent = le_ev->subevent;
7226 u8 *ptr = &skb->data[sizeof(*le_ev)];
7227 u8 num_reports = *ptr;
7229 if ((subevent == HCI_EV_LE_ADVERTISING_REPORT ||
7230 subevent == HCI_EV_LE_DIRECT_ADV_REPORT ||
7231 subevent == HCI_EV_LE_EXT_ADV_REPORT) &&
7233 adv = (void *)(ptr + 1);
7234 direct_adv = (void *)(ptr + 1);
7235 ext_adv = (void *)(ptr + 1);
7238 case HCI_EV_LE_ADVERTISING_REPORT:
7239 bacpy(&hdev->wake_addr, &adv->bdaddr);
7240 hdev->wake_addr_type = adv->bdaddr_type;
7242 case HCI_EV_LE_DIRECT_ADV_REPORT:
7243 bacpy(&hdev->wake_addr, &direct_adv->bdaddr);
7244 hdev->wake_addr_type = direct_adv->bdaddr_type;
7246 case HCI_EV_LE_EXT_ADV_REPORT:
7247 bacpy(&hdev->wake_addr, &ext_adv->bdaddr);
7248 hdev->wake_addr_type = ext_adv->bdaddr_type;
7253 hdev->wake_reason = MGMT_WAKE_REASON_UNEXPECTED;
7257 hci_dev_unlock(hdev);
7260 #define HCI_EV_VL(_op, _func, _min_len, _max_len) \
7264 .min_len = _min_len, \
7265 .max_len = _max_len, \
7268 #define HCI_EV(_op, _func, _len) \
7269 HCI_EV_VL(_op, _func, _len, _len)
7271 #define HCI_EV_STATUS(_op, _func) \
7272 HCI_EV(_op, _func, sizeof(struct hci_ev_status))
7274 #define HCI_EV_REQ_VL(_op, _func, _min_len, _max_len) \
7277 .func_req = _func, \
7278 .min_len = _min_len, \
7279 .max_len = _max_len, \
7282 #define HCI_EV_REQ(_op, _func, _len) \
7283 HCI_EV_REQ_VL(_op, _func, _len, _len)
7285 /* Entries in this table shall have their position according to the event opcode
7286 * they handle so the use of the macros above is recommend since it does attempt
7287 * to initialize at its proper index using Designated Initializers that way
7288 * events without a callback function don't have entered.
7290 static const struct hci_ev {
7293 void (*func)(struct hci_dev *hdev, void *data,
7294 struct sk_buff *skb);
7295 void (*func_req)(struct hci_dev *hdev, void *data,
7296 struct sk_buff *skb, u16 *opcode, u8 *status,
7297 hci_req_complete_t *req_complete,
7298 hci_req_complete_skb_t *req_complete_skb);
7302 } hci_ev_table[U8_MAX + 1] = {
7303 /* [0x01 = HCI_EV_INQUIRY_COMPLETE] */
7304 HCI_EV_STATUS(HCI_EV_INQUIRY_COMPLETE, hci_inquiry_complete_evt),
7305 /* [0x02 = HCI_EV_INQUIRY_RESULT] */
7306 HCI_EV_VL(HCI_EV_INQUIRY_RESULT, hci_inquiry_result_evt,
7307 sizeof(struct hci_ev_inquiry_result), HCI_MAX_EVENT_SIZE),
7308 /* [0x03 = HCI_EV_CONN_COMPLETE] */
7309 HCI_EV(HCI_EV_CONN_COMPLETE, hci_conn_complete_evt,
7310 sizeof(struct hci_ev_conn_complete)),
7311 /* [0x04 = HCI_EV_CONN_REQUEST] */
7312 HCI_EV(HCI_EV_CONN_REQUEST, hci_conn_request_evt,
7313 sizeof(struct hci_ev_conn_request)),
7314 /* [0x05 = HCI_EV_DISCONN_COMPLETE] */
7315 HCI_EV(HCI_EV_DISCONN_COMPLETE, hci_disconn_complete_evt,
7316 sizeof(struct hci_ev_disconn_complete)),
7317 /* [0x06 = HCI_EV_AUTH_COMPLETE] */
7318 HCI_EV(HCI_EV_AUTH_COMPLETE, hci_auth_complete_evt,
7319 sizeof(struct hci_ev_auth_complete)),
7320 /* [0x07 = HCI_EV_REMOTE_NAME] */
7321 HCI_EV(HCI_EV_REMOTE_NAME, hci_remote_name_evt,
7322 sizeof(struct hci_ev_remote_name)),
7323 /* [0x08 = HCI_EV_ENCRYPT_CHANGE] */
7324 HCI_EV(HCI_EV_ENCRYPT_CHANGE, hci_encrypt_change_evt,
7325 sizeof(struct hci_ev_encrypt_change)),
7326 /* [0x09 = HCI_EV_CHANGE_LINK_KEY_COMPLETE] */
7327 HCI_EV(HCI_EV_CHANGE_LINK_KEY_COMPLETE,
7328 hci_change_link_key_complete_evt,
7329 sizeof(struct hci_ev_change_link_key_complete)),
7330 /* [0x0b = HCI_EV_REMOTE_FEATURES] */
7331 HCI_EV(HCI_EV_REMOTE_FEATURES, hci_remote_features_evt,
7332 sizeof(struct hci_ev_remote_features)),
7333 /* [0x0e = HCI_EV_CMD_COMPLETE] */
7334 HCI_EV_REQ_VL(HCI_EV_CMD_COMPLETE, hci_cmd_complete_evt,
7335 sizeof(struct hci_ev_cmd_complete), HCI_MAX_EVENT_SIZE),
7336 /* [0x0f = HCI_EV_CMD_STATUS] */
7337 HCI_EV_REQ(HCI_EV_CMD_STATUS, hci_cmd_status_evt,
7338 sizeof(struct hci_ev_cmd_status)),
7339 /* [0x10 = HCI_EV_CMD_STATUS] */
7340 HCI_EV(HCI_EV_HARDWARE_ERROR, hci_hardware_error_evt,
7341 sizeof(struct hci_ev_hardware_error)),
7342 /* [0x12 = HCI_EV_ROLE_CHANGE] */
7343 HCI_EV(HCI_EV_ROLE_CHANGE, hci_role_change_evt,
7344 sizeof(struct hci_ev_role_change)),
7345 /* [0x13 = HCI_EV_NUM_COMP_PKTS] */
7346 HCI_EV_VL(HCI_EV_NUM_COMP_PKTS, hci_num_comp_pkts_evt,
7347 sizeof(struct hci_ev_num_comp_pkts), HCI_MAX_EVENT_SIZE),
7348 /* [0x14 = HCI_EV_MODE_CHANGE] */
7349 HCI_EV(HCI_EV_MODE_CHANGE, hci_mode_change_evt,
7350 sizeof(struct hci_ev_mode_change)),
7351 /* [0x16 = HCI_EV_PIN_CODE_REQ] */
7352 HCI_EV(HCI_EV_PIN_CODE_REQ, hci_pin_code_request_evt,
7353 sizeof(struct hci_ev_pin_code_req)),
7354 /* [0x17 = HCI_EV_LINK_KEY_REQ] */
7355 HCI_EV(HCI_EV_LINK_KEY_REQ, hci_link_key_request_evt,
7356 sizeof(struct hci_ev_link_key_req)),
7357 /* [0x18 = HCI_EV_LINK_KEY_NOTIFY] */
7358 HCI_EV(HCI_EV_LINK_KEY_NOTIFY, hci_link_key_notify_evt,
7359 sizeof(struct hci_ev_link_key_notify)),
7360 /* [0x1c = HCI_EV_CLOCK_OFFSET] */
7361 HCI_EV(HCI_EV_CLOCK_OFFSET, hci_clock_offset_evt,
7362 sizeof(struct hci_ev_clock_offset)),
7363 /* [0x1d = HCI_EV_PKT_TYPE_CHANGE] */
7364 HCI_EV(HCI_EV_PKT_TYPE_CHANGE, hci_pkt_type_change_evt,
7365 sizeof(struct hci_ev_pkt_type_change)),
7366 /* [0x20 = HCI_EV_PSCAN_REP_MODE] */
7367 HCI_EV(HCI_EV_PSCAN_REP_MODE, hci_pscan_rep_mode_evt,
7368 sizeof(struct hci_ev_pscan_rep_mode)),
7369 /* [0x22 = HCI_EV_INQUIRY_RESULT_WITH_RSSI] */
7370 HCI_EV_VL(HCI_EV_INQUIRY_RESULT_WITH_RSSI,
7371 hci_inquiry_result_with_rssi_evt,
7372 sizeof(struct hci_ev_inquiry_result_rssi),
7373 HCI_MAX_EVENT_SIZE),
7374 /* [0x23 = HCI_EV_REMOTE_EXT_FEATURES] */
7375 HCI_EV(HCI_EV_REMOTE_EXT_FEATURES, hci_remote_ext_features_evt,
7376 sizeof(struct hci_ev_remote_ext_features)),
7377 /* [0x2c = HCI_EV_SYNC_CONN_COMPLETE] */
7378 HCI_EV(HCI_EV_SYNC_CONN_COMPLETE, hci_sync_conn_complete_evt,
7379 sizeof(struct hci_ev_sync_conn_complete)),
7380 /* [0x2d = HCI_EV_EXTENDED_INQUIRY_RESULT] */
7381 HCI_EV_VL(HCI_EV_EXTENDED_INQUIRY_RESULT,
7382 hci_extended_inquiry_result_evt,
7383 sizeof(struct hci_ev_ext_inquiry_result), HCI_MAX_EVENT_SIZE),
7384 /* [0x30 = HCI_EV_KEY_REFRESH_COMPLETE] */
7385 HCI_EV(HCI_EV_KEY_REFRESH_COMPLETE, hci_key_refresh_complete_evt,
7386 sizeof(struct hci_ev_key_refresh_complete)),
7387 /* [0x31 = HCI_EV_IO_CAPA_REQUEST] */
7388 HCI_EV(HCI_EV_IO_CAPA_REQUEST, hci_io_capa_request_evt,
7389 sizeof(struct hci_ev_io_capa_request)),
7390 /* [0x32 = HCI_EV_IO_CAPA_REPLY] */
7391 HCI_EV(HCI_EV_IO_CAPA_REPLY, hci_io_capa_reply_evt,
7392 sizeof(struct hci_ev_io_capa_reply)),
7393 /* [0x33 = HCI_EV_USER_CONFIRM_REQUEST] */
7394 HCI_EV(HCI_EV_USER_CONFIRM_REQUEST, hci_user_confirm_request_evt,
7395 sizeof(struct hci_ev_user_confirm_req)),
7396 /* [0x34 = HCI_EV_USER_PASSKEY_REQUEST] */
7397 HCI_EV(HCI_EV_USER_PASSKEY_REQUEST, hci_user_passkey_request_evt,
7398 sizeof(struct hci_ev_user_passkey_req)),
7399 /* [0x35 = HCI_EV_REMOTE_OOB_DATA_REQUEST] */
7400 HCI_EV(HCI_EV_REMOTE_OOB_DATA_REQUEST, hci_remote_oob_data_request_evt,
7401 sizeof(struct hci_ev_remote_oob_data_request)),
7402 /* [0x36 = HCI_EV_SIMPLE_PAIR_COMPLETE] */
7403 HCI_EV(HCI_EV_SIMPLE_PAIR_COMPLETE, hci_simple_pair_complete_evt,
7404 sizeof(struct hci_ev_simple_pair_complete)),
7405 /* [0x3b = HCI_EV_USER_PASSKEY_NOTIFY] */
7406 HCI_EV(HCI_EV_USER_PASSKEY_NOTIFY, hci_user_passkey_notify_evt,
7407 sizeof(struct hci_ev_user_passkey_notify)),
7408 /* [0x3c = HCI_EV_KEYPRESS_NOTIFY] */
7409 HCI_EV(HCI_EV_KEYPRESS_NOTIFY, hci_keypress_notify_evt,
7410 sizeof(struct hci_ev_keypress_notify)),
7411 /* [0x3d = HCI_EV_REMOTE_HOST_FEATURES] */
7412 HCI_EV(HCI_EV_REMOTE_HOST_FEATURES, hci_remote_host_features_evt,
7413 sizeof(struct hci_ev_remote_host_features)),
7414 /* [0x3e = HCI_EV_LE_META] */
7415 HCI_EV_REQ_VL(HCI_EV_LE_META, hci_le_meta_evt,
7416 sizeof(struct hci_ev_le_meta), HCI_MAX_EVENT_SIZE),
7417 #if IS_ENABLED(CONFIG_BT_HS)
7418 /* [0x40 = HCI_EV_PHY_LINK_COMPLETE] */
7419 HCI_EV(HCI_EV_PHY_LINK_COMPLETE, hci_phy_link_complete_evt,
7420 sizeof(struct hci_ev_phy_link_complete)),
7421 /* [0x41 = HCI_EV_CHANNEL_SELECTED] */
7422 HCI_EV(HCI_EV_CHANNEL_SELECTED, hci_chan_selected_evt,
7423 sizeof(struct hci_ev_channel_selected)),
7424 /* [0x42 = HCI_EV_DISCONN_PHY_LINK_COMPLETE] */
7425 HCI_EV(HCI_EV_DISCONN_LOGICAL_LINK_COMPLETE,
7426 hci_disconn_loglink_complete_evt,
7427 sizeof(struct hci_ev_disconn_logical_link_complete)),
7428 /* [0x45 = HCI_EV_LOGICAL_LINK_COMPLETE] */
7429 HCI_EV(HCI_EV_LOGICAL_LINK_COMPLETE, hci_loglink_complete_evt,
7430 sizeof(struct hci_ev_logical_link_complete)),
7431 /* [0x46 = HCI_EV_DISCONN_LOGICAL_LINK_COMPLETE] */
7432 HCI_EV(HCI_EV_DISCONN_PHY_LINK_COMPLETE,
7433 hci_disconn_phylink_complete_evt,
7434 sizeof(struct hci_ev_disconn_phy_link_complete)),
7436 /* [0x48 = HCI_EV_NUM_COMP_BLOCKS] */
7437 HCI_EV(HCI_EV_NUM_COMP_BLOCKS, hci_num_comp_blocks_evt,
7438 sizeof(struct hci_ev_num_comp_blocks)),
7439 /* [0xff = HCI_EV_VENDOR] */
7440 HCI_EV_VL(HCI_EV_VENDOR, msft_vendor_evt, 0, HCI_MAX_EVENT_SIZE),
7443 static void hci_event_func(struct hci_dev *hdev, u8 event, struct sk_buff *skb,
7444 u16 *opcode, u8 *status,
7445 hci_req_complete_t *req_complete,
7446 hci_req_complete_skb_t *req_complete_skb)
7448 const struct hci_ev *ev = &hci_ev_table[event];
7454 if (skb->len < ev->min_len) {
7455 bt_dev_err(hdev, "unexpected event 0x%2.2x length: %u < %u",
7456 event, skb->len, ev->min_len);
7460 /* Just warn if the length is over max_len size it still be
7461 * possible to partially parse the event so leave to callback to
7462 * decide if that is acceptable.
7464 if (skb->len > ev->max_len)
7465 bt_dev_warn_ratelimited(hdev,
7466 "unexpected event 0x%2.2x length: %u > %u",
7467 event, skb->len, ev->max_len);
7469 data = hci_ev_skb_pull(hdev, skb, event, ev->min_len);
7474 ev->func_req(hdev, data, skb, opcode, status, req_complete,
7477 ev->func(hdev, data, skb);
7480 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb)
7482 struct hci_event_hdr *hdr = (void *) skb->data;
7483 hci_req_complete_t req_complete = NULL;
7484 hci_req_complete_skb_t req_complete_skb = NULL;
7485 struct sk_buff *orig_skb = NULL;
7486 u8 status = 0, event, req_evt = 0;
7487 u16 opcode = HCI_OP_NOP;
7489 if (skb->len < sizeof(*hdr)) {
7490 bt_dev_err(hdev, "Malformed HCI Event");
7494 kfree_skb(hdev->recv_event);
7495 hdev->recv_event = skb_clone(skb, GFP_KERNEL);
7499 bt_dev_warn(hdev, "Received unexpected HCI Event 0x%2.2x",
7504 /* Only match event if command OGF is not for LE */
7505 if (hdev->sent_cmd &&
7506 hci_opcode_ogf(hci_skb_opcode(hdev->sent_cmd)) != 0x08 &&
7507 hci_skb_event(hdev->sent_cmd) == event) {
7508 hci_req_cmd_complete(hdev, hci_skb_opcode(hdev->sent_cmd),
7509 status, &req_complete, &req_complete_skb);
7513 /* If it looks like we might end up having to call
7514 * req_complete_skb, store a pristine copy of the skb since the
7515 * various handlers may modify the original one through
7516 * skb_pull() calls, etc.
7518 if (req_complete_skb || event == HCI_EV_CMD_STATUS ||
7519 event == HCI_EV_CMD_COMPLETE)
7520 orig_skb = skb_clone(skb, GFP_KERNEL);
7522 skb_pull(skb, HCI_EVENT_HDR_SIZE);
7524 /* Store wake reason if we're suspended */
7525 hci_store_wake_reason(hdev, event, skb);
7527 bt_dev_dbg(hdev, "event 0x%2.2x", event);
7529 hci_event_func(hdev, event, skb, &opcode, &status, &req_complete,
7533 req_complete(hdev, status, opcode);
7534 } else if (req_complete_skb) {
7535 if (!hci_get_cmd_complete(hdev, opcode, req_evt, orig_skb)) {
7536 kfree_skb(orig_skb);
7539 req_complete_skb(hdev, status, opcode, orig_skb);
7543 kfree_skb(orig_skb);
7545 hdev->stat.evt_rx++;